Freezer

Abstract

A freezer, relating to the technical field of refrigeration devices. The freezer comprises: a freezer body (100), a mounting enclosure (400), a compressor (842), an evaporator (300), a return air vent (401), a ventilation housing (500), a first air outlet (601), a second air outlet (602), a third air outlet (603), a fourth air outlet (604), and a fan (700). An opening is formed at the top of the freezer body (100). The evaporator (300) is disposed inside the mounting enclosure (400). The mounting enclosure (400) is provided with the return air vent (401). The internal space of the freezer body (100) comprises a first accommodating cavity (103), a second accommodating cavity (104), and a third accommodating cavity (105) that are successively connected; and the second accommodating cavity (104) is located above the mounting enclosure (400). The ventilation housing (500) is attached to a side wall of the freezer body, and the ventilation housing (500) is communicated with the mounting enclosure (400). The first air outlet (601) is formed on the side of the mounting enclosure (400) facing the first accommodating cavity (103). The second air outlet (602) is formed on the side of the ventilation housing (500) facing the first accommodating cavity (103). The second air outlet (602) is located above the first air outlet (601). The third air outlet (603) is formed on the side of the ventilation housing (500) facing the second accommodating cavity (104). The fourth air outlet (604) is formed on the side of the ventilation housing (500) facing the third accommodating cavity (105). The fan (700) is disposed in the ventilation housing (500).

Description

freezer

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2024105091960, filed on April 25, 2024; Chinese patent application No. 2024208812730, filed on April 25, 2024; and Chinese patent application No. 2024208811314, filed on April 25, 2024. Priority to Chinese patent application No. 2024208818205, filed on April 25, 2024; priority to Chinese patent application No. 2024208812444, filed on April 25, 2024; priority to Chinese patent application No. 2024208819528, filed on April 25, 2024; priority to Chinese patent application No. 202420881719X, filed on April 25, 2024. Priority claims to the following Chinese patent applications: Chinese Patent Application No. 2024208846760, filed on April 25, 2024; Chinese Patent Application No. 2024208817490, filed on April 25, 2024; Chinese Patent Application No. 2024208819176, filed on April 25, 2024; Chinese Patent Application No. 2024208813095, filed on April 25, 2024; Chinese Patent Application No. 2024208846671, filed on April 25, 2024; and Chinese Patent Application No. 2024208818652, filed on April 25, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the technical field of refrigeration equipment, and more particularly to a freezer. Background Technology

[0004] A freezer is a household or commercial appliance used for refrigerating or freezing food and goods. It typically employs refrigeration technology to maintain a low temperature level to preserve food freshness and extend its shelf life. In related technologies, a freezer includes a cabinet containing an evaporator and air ducts. Air vents connected to the air ducts are located on the inner wall of the cabinet, allowing cold air from the evaporator to enter the cabinet through the ducts and vents. However, to improve the cooling effect, multiple air vents are usually used to achieve air circulation. Refrigerators in related technologies are designed with multiple air ducts, each with air vents, so that the vents are spaced far apart and blow air in different directions to achieve air circulation. However, this requires multiple air ducts within the freezer, resulting in higher costs.

[0005] Summary of the Invention

[0006] This application provides a freezer, comprising:

[0007] The box body has an opening at the top;

[0008] The installation box is located on the inner bottom wall of the box body and is provided with a return air vent;

[0009] The compressor is disposed in the housing;

[0010] An evaporator is disposed inside the mounting box and is connected to the compressor;

[0011] A ventilation shell is attached to the side wall of the housing and is connected to the mounting box;

[0012] The internal space of the housing includes a first accommodating cavity, a second accommodating cavity, and a third accommodating cavity connected in sequence; the second accommodating cavity is located above the mounting box; the mounting box has a first air outlet on the side facing the first accommodating cavity; the ventilation shell has a second air outlet on the side facing the first accommodating cavity, and the second air outlet is located above the first air outlet; the ventilation shell has a third air outlet on the side facing the second accommodating cavity; and the ventilation shell has a fourth air outlet on the side facing the third accommodating cavity.

[0013] This application also provides a freezer, which includes:

[0014] The box body has an opening at the top;

[0015] The installation box is located on the inner bottom wall of the box body and is provided with a return air vent;

[0016] The compressor is disposed in the housing;

[0017] An evaporator is disposed inside the mounting box and is connected to the compressor;

[0018] A ventilation shell is attached to the side wall of the housing and is connected to the mounting box;

[0019] The internal space of the housing includes a first accommodating cavity, a second accommodating cavity, and a third accommodating cavity connected in sequence; the second accommodating cavity is located above the mounting box; a first air outlet is provided on the side of the ventilation shell facing the first accommodating cavity; a second air outlet is provided on the side of the ventilation shell facing the first accommodating cavity, and the second air outlet is located above the first air outlet; a third air outlet is provided on the side of the ventilation shell facing the second accommodating cavity; and a fourth air outlet is provided on the side of the ventilation shell facing the third accommodating cavity.

[0020] This application also includes a freezer, comprising:

[0021] The box body has an opening at the top;

[0022] The installation box is located on the inner bottom wall of the box body and is provided with a return air vent;

[0023] The compressor is disposed in the housing;

[0024] An evaporator is disposed inside the mounting box and is connected to the compressor;

[0025] A ventilation shell is attached to the inner wall of the housing and is connected to the mounting box;

[0026] The enclosure includes a first receiving cavity, a second receiving cavity, and a third receiving cavity, with the first and third receiving cavities located on opposite sides of the mounting box. A third air outlet is provided on the vertical side wall of the ventilation shell, located above the mounting box.

[0027] The third grille includes a first air guide plate, a second air guide plate, and a third air guide plate, which are respectively used to guide airflow to the first receiving cavity, the area above the mounting box, and the third receiving cavity.

[0028] This application also provides a freezer, including:

[0029] The box has an open top and its interior is divided into a first receiving cavity, a second receiving cavity, and a third receiving cavity along its length.

[0030] The installation box is disposed on the inner bottom wall of the box body, and the return air vent is opened in the installation box;

[0031] The compressor is disposed in the housing;

[0032] An evaporator is disposed inside the mounting box and is connected to the compressor;

[0033] A ventilation shell is attached to the inner wall of the housing and is connected to the mounting box. A third air outlet is opened on the vertical side wall of the ventilation shell.

[0034] The third grille includes a first air guide plate, a second air guide plate, and a third air guide plate, which are respectively used to guide airflow to the first accommodating cavity, the second accommodating cavity, and the third accommodating cavity.

[0035] This application also provides a freezer, which includes:

[0036] The box body has an opening at its top and includes an outer shell and an inner liner, with the inner liner disposed inside the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity.

[0037] The door is used to open or close the opening of the box.

[0038] A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet.

[0039] A fan is located inside the inner liner and on one side in the front-to-back direction of the first heat exchanger. The fan rotates to cause the air in the receiving cavity to flow through the return air inlet to the cavity of the first heat exchanger to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the receiving cavity.

[0040] A water receiving tray is located inside the inner tank and below the first heat exchanger;

[0041] Wherein, the plane that is vertically set and perpendicular to the front-back direction of the box body is defined as the first plane; the plane where the bottom end of the first heat exchanger is located is the bottom surface of the heat exchanger; along the length direction of the box body, the bottom surface of the heat exchanger is inclined; the intersection line of the plane where the bottom surface of the heat exchanger is located and the first plane is the first intersection line; the angle between the first intersection line and the horizontal plane is the first angle α.

[0042] The water receiving tray includes a water receiving bottom surface, which is located at the inner bottom of the water receiving tray. The water receiving bottom surface includes a first water receiving surface. Along the length direction of the tank, the first water receiving surface is inclined, and the inclination direction of the first water receiving surface is the same as the inclination direction of the bottom surface of the heat exchanger. The intersection line of the plane containing the first water receiving surface and the first plane is a second intersection line, and the angle between the second intersection line and the horizontal plane is a second angle β, where β>α.

[0043] This application also provides a freezer comprising:

[0044] The box body has an opening at its top and includes an outer shell and an inner liner, with the inner liner disposed inside the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity.

[0045] The door is used to open or close the opening of the box.

[0046] A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet.

[0047] A fan is disposed within the inner liner and on one side in the front-rear direction of the first heat exchanger. The fan rotates to cause air in the receiving cavity to flow through the return air inlet into the first heat exchanger cavity to exchange heat with the first heat exchanger. The air, after exchanging heat with the first heat exchanger, flows through the air outlet back into the receiving cavity.

[0048] A water receiving tray is located inside the inner tank and below the first heat exchanger;

[0049] Wherein, the plane that is vertically set and perpendicular to the front-back direction of the box body is defined as the first plane; the plane where the bottom end of the first heat exchanger is located is the bottom surface of the heat exchanger; along the length direction of the box body, the bottom surface of the heat exchanger is inclined; the intersection line of the plane where the bottom surface of the heat exchanger is located and the first plane is the first intersection line; the angle between the first intersection line and the horizontal plane is the first angle α.

[0050] The water receiving tray includes a water receiving bottom surface, which is located at the inner bottom of the water receiving tray. The water receiving bottom surface includes a first water receiving surface. Along the length of the tank, the first water receiving surface is inclined, and the inclination direction of the first water receiving surface is the same as the inclination direction of the bottom surface of the heat exchanger. The intersection line between the plane containing the first water receiving surface and the first plane is a second intersection line, and the angle between the second intersection line and the horizontal plane is a second angle β, where β > α.

[0051] The inner liner includes a first support surface located inside the inner liner. The first support surface is located below the first water receiving surface and is parallel to the first water receiving surface. The first support surface is in contact with the outer bottom surface of the water receiving tray.

[0052] This application also provides a freezer, which includes:

[0053] The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located within the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity.

[0054] The door is used to open or close the opening of the box.

[0055] A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet.

[0056] A fan is provided inside the inner liner and on one side in the front-rear direction of the first heat exchanger. The fan rotates to cause the air in the receiving cavity to flow through the return air inlet to the cavity of the first heat exchanger to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet to the receiving cavity.

[0057] An electric heating device includes a bottom heating tube connected to and located at the bottom end of the first heat exchanger; and

[0058] A water receiving tray is provided inside the inner tank and located below the first heat exchanger, and the first heat exchanger is provided on the water receiving tray;

[0059] The water receiving tray includes: a first water receiving plate, the first water receiving plate including a first supporting rib, the first supporting rib being disposed on the side of the first water receiving plate near the first heat exchanger, the first supporting rib being in contact with the bottom heating pipe or having a first gap G1.

[0060] This application also provides a freezer, which includes:

[0061] The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located within the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity.

[0062] The door is used to open or close the opening of the box.

[0063] A first heat exchanger is disposed in the first heat exchanger cavity. The receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet. Along the front-rear direction of the housing, the first heat exchanger is horizontally arranged, and along the length direction of the housing, the first heat exchanger is inclined.

[0064] A fan is located inside the inner liner and on one side in the front-to-back direction of the first heat exchanger. The fan rotates to cause the air in the receiving cavity to flow through the return air inlet to the cavity of the first heat exchanger to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the receiving cavity.

[0065] An electric heating device includes a bottom heating tube connected to and located at the bottom end of the first heat exchanger; and

[0066] A water receiving tray is provided inside the inner tank and located below the first heat exchanger, and the first heat exchanger is provided on the water receiving tray;

[0067] The water receiving tray includes: a first water receiving plate, the first water receiving plate including a first supporting rib, the first supporting rib being disposed on the side of the first water receiving plate near the first heat exchanger, the first supporting rib being in contact with the bottom heating pipe or having a first gap G1.

[0068] This application also provides a freezer, which includes:

[0069] The box body has a height from the bottom to the top of the box body, and an opening is provided at the top of the box body; the box body includes an outer shell and an inner liner, with the inner liner disposed inside the outer shell; the box body has a receiving cavity; the inner liner has a first heat exchanger cavity; the inner liner includes a first drainage section, with a first drainage channel provided in the first drainage section, and the first drainage channel communicating with the first heat exchanger cavity;

[0070] The door is used to open or close the opening of the box.

[0071] A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet.

[0072] A fan is located inside the inner liner and on one side of the first heat exchanger. The fan rotates to cause the air in the accommodating cavity to flow through the return air inlet to the first heat exchanger cavity to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the accommodating cavity.

[0073] A bottom plate, disposed within the outer casing and connected to the outer casing to form a compressor cavity, wherein the bottom plate has a first through hole penetrating the bottom plate; and

[0074] The second drainage section has one end extending through the first through hole in the bottom plate of the housing and connecting to the first drainage section. The other end of the second drainage section is located inside the compressor cavity, and the connection between the second drainage section and the first drainage section is located outside the compressor cavity. The second drainage section has a second drainage channel inside, and the second drainage channel is connected to the first drainage channel.

[0075] This application also provides a freezer, which includes:

[0076] The box body has a height from the bottom to the top of the box body, and an opening is provided at the top of the box body; the box body includes an outer shell and an inner liner, with the inner liner disposed inside the outer shell; the box body has a receiving cavity; the inner liner has a first heat exchanger cavity; the inner liner includes a first drainage section, with a first drainage channel provided in the first drainage section, and the first drainage channel communicating with the first heat exchanger cavity;

[0077] The door is used to open or close the opening of the box.

[0078] A first heat exchanger is disposed within a first heat exchanger cavity. The receiving cavity is connected to the first heat exchanger cavity via a return air vent, and the receiving cavity is also connected to the first heat exchanger cavity via an air outlet. The first heat exchanger is inclined along the length of the housing.

[0079] A fan is located inside the inner liner and on one side of the first heat exchanger. The fan rotates to cause the air in the accommodating cavity to flow through the return air inlet to the first heat exchanger cavity to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the accommodating cavity.

[0080] A bottom plate, disposed within the outer casing and connected to the outer casing to form a compressor cavity, wherein the bottom plate has a first through hole penetrating the bottom plate; and

[0081] The second drainage section has one end extending through the first through hole in the bottom plate of the housing and connecting to the first drainage section. The other end of the second drainage section is located inside the compressor cavity, and the connection between the second drainage section and the first drainage section is located outside the compressor cavity. The second drainage section has a second drainage channel inside, and the second drainage channel is connected to the first drainage channel.

[0082] This application also provides a freezer, which includes:

[0083] The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located within the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity.

[0084] The door is used to open or close the opening of the box.

[0085] A first heat exchanger is disposed within a first heat exchanger cavity. The receiving cavity is connected to the first heat exchanger cavity through a return air vent, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet. Along the front-rear direction of the housing, the first heat exchanger is horizontally arranged, and the length direction of the first heat exchanger is parallel to the front-rear direction of the housing. Along the length direction of the housing, the first heat exchanger is inclined.

[0086] A fan is disposed inside the inner liner and on one side in the front-rear direction of the first heat exchanger. The fan rotates to cause air in the receiving cavity to flow through the return air inlet into the first heat exchanger cavity to exchange heat with the first heat exchanger. The air, after exchanging heat with the first heat exchanger, flows through the air outlet back into the receiving cavity.

[0087] A water receiving tray is disposed inside the inner tank, and the water receiving tray is located below the first heat exchanger. The water receiving tray has a water receiving tray drain hole for draining water.

[0088] This application also provides a freezer, which includes:

[0089] The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located within the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity.

[0090] The door is used to open or close the opening of the box.

[0091] A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet.

[0092] A fan is disposed inside the inner liner and on one side of the first heat exchanger in the front-rear direction. The fan's rotation axis is arranged along the front-rear direction of the housing and parallel to the length direction of the first heat exchanger. The fan's rotation causes air in the receiving cavity to flow through the return air inlet to the first heat exchanger cavity to exchange heat with the first heat exchanger. Air that has exchanged heat with the first heat exchanger flows through the air outlet back into the receiving cavity.

[0093] A water receiving tray is provided inside the inner tank, and the water receiving tray is located below the first heat exchanger. The water receiving tray has a water receiving tray drain hole for draining water.

[0094] The first heat exchanger is horizontally arranged along the front-to-back direction of the housing, and inclined along the length direction of the housing.

[0095] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0096] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0097] Figure 1 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0098] Figure 2 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0099] Figure 3 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0100] Figure 4 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0101] Figure 5 is a top view of a freezer according to some embodiments of this application;

[0102] Figure 6 is a side view of a freezer according to some embodiments of this application;

[0103] Figure 7 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0104] Figure 8 is a structural schematic diagram of the inner liner of a freezer according to some embodiments of this application;

[0105] Figure 9 is a cross-sectional view of the inner liner of a freezer according to some embodiments of this application;

[0106] Figure 10 is a cross-sectional view of the inner liner of a freezer according to some embodiments of this application;

[0107] Figure 11 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0108] Figure 12 is a front view of the interior of a freezer according to some embodiments of this application;

[0109] Figure 13 is a structural schematic diagram of the evaporator of a freezer according to some embodiments of this application;

[0110] Figure 14 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0111] Figure 15 is a cross-sectional view of a freezer according to some embodiments of this application;

[0112] Figure 16 is a schematic diagram of the overall internal structure of a freezer according to some embodiments of this application;

[0113] Figure 17 is a cross-sectional view of a freezer according to some embodiments of this application;

[0114] Figure 18 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0115] Figure 19 is a cross-sectional view of a freezer according to some embodiments of this application;

[0116] Figure 20 is a schematic diagram of the overall structure of the internal structure of a freezer according to some embodiments of this application;

[0117] Figure 21 is a cross-sectional view of a freezer according to some embodiments of this application;

[0118] Figure 22 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0119] Figure 23 is a cross-sectional view of a freezer according to some embodiments of this application;

[0120] Figure 24 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0121] Figure 25 is a top view of a freezer according to some embodiments of this application;

[0122] Figure 26 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0123] Figure 27 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0124] Figure 28 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0125] Figure 29 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0126] Figure 30 is a front view of the internal structure of a freezer according to some embodiments of this application;

[0127] Figure 31 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0128] Figure 32 is a right view of the internal structure of a freezer according to some embodiments of this application;

[0129] Figure 33 is a left view of the internal structure of a freezer according to some embodiments of this application;

[0130] Figure 34 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0131] Figure 35 is a top view of a freezer according to some embodiments of this application;

[0132] Figure 36 is a schematic diagram of the overall internal structure of a freezer according to some embodiments of this application;

[0133] Figure 37 is a front view of the internal structure of a freezer according to some embodiments of this application;

[0134] Figure 38 is a structural schematic diagram of the third grille of a freezer according to some embodiments of this application;

[0135] Figure 39 is a front view of the ventilation shell of a freezer according to some embodiments of this application;

[0136] Figure 40 is a structural schematic diagram of the ventilation shell of a freezer according to some embodiments of this application;

[0137] Figure 41 is a schematic diagram of the structure of the ventilation shell of a freezer according to some embodiments of this application;

[0138] Figure 42 is a structural schematic diagram of the ventilation shell of a freezer according to some embodiments of this application;

[0139] Figure 43 is a structural schematic diagram of the ventilation shell of a freezer according to some embodiments of this application;

[0140] Figure 44 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0141] Figure 45 is a front view of a freezer according to some embodiments of this application;

[0142] Figure 46 is a cross-sectional view along the AA direction in Figure 2;

[0143] Figure 47 is a cross-sectional view of a freezer according to some embodiments of this application;

[0144] Figure 48 is a top view of a freezer according to some embodiments of this application;

[0145] Figure 49 is a structural schematic diagram of the air outlet portion of a refrigerator according to some embodiments of this application;

[0146] Figure 50 is a structural schematic diagram of the air outlet portion of a refrigerator according to some embodiments of this application;

[0147] Figure 51 is a front view of the air outlet portion of a refrigerator according to some embodiments of this application;

[0148] Figure 52 is a front view of the air outlet portion of a refrigerator according to some embodiments of this application;

[0149] Figure 53 is a cross-sectional view of the air outlet portion of a refrigerator according to some embodiments of this application;

[0150] Figure 54 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0151] Figure 55 is a top view of a freezer according to some embodiments of this application;

[0152] Figure 56 is a front view of a freezer according to some embodiments of this application;

[0153] Figure 57 is a cross-sectional view along the AA direction in Figure 3;

[0154] Figure 58 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0155] Figure 59 is a front view of the internal structure of a freezer according to some embodiments of this application;

[0156] Figure 60 is a structural schematic diagram of the installation box of a refrigerator according to some embodiments of this application;

[0157] Figure 61 is a front view of the mounting box of a freezer according to some embodiments of this application;

[0158] Figure 62 is a front view of the mounting box of a freezer according to some embodiments of this application;

[0159] Figure 63 is a front view of the mounting box of a freezer according to some embodiments of this application;

[0160] Figure 64 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0161] Figure 65 is a front view of a freezer according to some embodiments of this application;

[0162] Figure 66 is a bottom-up cross-sectional view of a freezer according to some embodiments of this application;

[0163] Figure 67 is a cross-sectional view of the ventilation shell of a freezer according to some embodiments of this application;

[0164] Figure 68 is a bottom-up cross-sectional view of a freezer according to some embodiments of this application;

[0165] Figure 69 is a cross-sectional view of the ventilation shell of a freezer according to some embodiments of this application;

[0166] Figure 70 is a bottom-up cross-sectional view of a freezer according to some embodiments of this application;

[0167] Figure 71 is a cross-sectional view of the ventilation shell of a freezer according to some embodiments of this application;

[0168] Figure 72 is a top view of a freezer according to some embodiments of this application;

[0169] Figure 73 is a side view of a freezer according to some embodiments of this application;

[0170] Figure 74 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0171] Figure 75 is a schematic diagram of the overall structure of a freezer according to some embodiments of this application;

[0172] Figure 76 is a top view of a freezer according to some embodiments of this application;

[0173] Figure 77 is a front view of a freezer according to some embodiments of this application;

[0174] Figure 78 is a cross-sectional view along the AA direction in Figure 4;

[0175] Figure 79 is a cross-sectional view along the BB direction in Figure 4;

[0176] Figure 80 is a left view of a freezer according to some embodiments of this application;

[0177] Figure 81 is a cross-sectional view along the CC direction in Figure 7;

[0178] Figure 82 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0179] Figure 83 is a schematic diagram of the internal structure of a freezer according to some embodiments of this application;

[0180] Figure 84 is a perspective view of a freezer according to some embodiments of this application;

[0181] Figures 85-90 are partial structural perspective views of a freezer according to some embodiments of this application;

[0182] Figure 91 is a partial structural diagram of a freezer from another perspective according to some embodiments of this application;

[0183] Figure 92 is a magnified view of a portion of A2 in Figure 91;

[0184] Figure 93 is a structural diagram of a water receiving tray according to some embodiments of this application;

[0185] Figure 94 is a top view of a water receiving tray according to some embodiments of this application;

[0186] Figure 95 is a cross-sectional view at B2-B2 in Figure 94;

[0187] Figure 96 is a cross-sectional view at point D2-D2 in Figure 94;

[0188] Figure 97 is a cross-sectional view at C2-C2 in Figure 94;

[0189] Figure 98 is a structural diagram of the inner liner according to some embodiments of this application;

[0190] Figure 99 is a top view of the inner liner according to some embodiments of this application;

[0191] Figure 100 is a partial structural diagram of the inner liner according to some embodiments of this application;

[0192] Figures 101-102 are partial structural perspective views of a freezer according to some embodiments of this application;

[0193] Figure 103 is a structural diagram of a water receiving tray according to some embodiments of this application;

[0194] Figure 104 is a partial structural cross-sectional view of a freezer according to some embodiments of this application;

[0195] Figure 105 is a magnified view of a portion of E2 in Figure 104;

[0196] Figure 106 is a partial structural diagram of a freezer from another perspective according to some embodiments of this application;

[0197] Figure 107 is a magnified view of part F2 in Figure 106;

[0198] Figure 108 is a partial structural cross-sectional view of a freezer according to some embodiments of this application from another perspective;

[0199] Figure 109 is a partial structural diagram of a freezer from another perspective according to some embodiments of this application;

[0200] Figure 110 is a partial structural cross-sectional view of a freezer according to some embodiments of this application from another perspective;

[0201] Figures 111-112 are partial structural diagrams of a freezer according to some embodiments of this application;

[0202] Figure 113 is a partial structural diagram of a freezer from another perspective according to some embodiments of this application;

[0203] Figure 114 is a magnified view of a portion of G2 in Figure 113;

[0204] Figure 115 is a partial structural diagram of a freezer from another perspective according to some embodiments of this application;

[0205] Figure 116 is a structural diagram of the bottom plate of a box according to some embodiments of this application;

[0206] Figures 117-118 are partial structural diagrams of a freezer according to some embodiments of this application.

[0207] In the above figures: Box body 100; Inner liner 101; First side wall of inner liner 101211; Second side wall of inner liner 101212; Third side wall of inner liner 101213; Fourth side wall of inner liner 101214; Drainage channel 10122; First drainage section 101221; First support surface of inner liner 101231; Second support surface of inner liner 101232; Second front support surface of inner liner 1012321; Second rear support surface of inner liner 1012322; Bottom plate of inner liner 1014; Step plate 10141; Top surface of step 101411; First bottom plate of inner liner 10142; Top surface of first bottom plate of inner liner 101421; Heat exchanger cavity plate 10143; First support plate 101431; Second support rib 1014311; Second support plate 1 01432; Second front support plate 1014321; Second rear support plate 1014322; Third support plate 101433; Fourth support plate 101434; Fifth support plate 101435; Fifth support surface 1014351; First drainage part 1015; First drainage channel 10151; First snap-fit ​​part 10152; Inner liner drainage hole 1017; Outer shell 102; Receiving cavity 1060; Box opening 1061; First heat exchanger cavity 1062; Door 200; Evaporator 300; Heat exchanger bottom surface 301; First refrigerant pipe 302; Fins 303; Bottom fins 3031; Bottom snap-fit ​​part 30311; First end plate of heat exchanger 3041; Second end plate of heat exchanger 3042; End plate bottom snap-fit ​​part 304 3; Mounting box 400; Return air vent 401; First return air vent 4011; Second return air vent 4012; Thermal insulation component 402; Ventilation shell 500; Volute enclosure 501; Air outlet duct 502; Air outlet 600; First air outlet 601; First grille 6011; Third grille 6014; First air guide plate 60141; Second air guide plate 60142; Third air guide plate 60143; Second air outlet 602; Third air outlet 603; Fourth air outlet 604; Fan 700; Step 800; Compressor 842; Refrigerator air outlet 996; Flanged edge 997; Air outlet component 998; Connecting rod 999; First chamber 1031; Second chamber 1032; First receiving chamber 103; Second receiving chamber 104; Third receiving chamber 105; Cavity 105; First mounting wall 1101; Second mounting wall 1102; First bending section 1103; Second bending section 1104; Third bending section 1105; Fourth bending section 1106; Water receiving tray 810; Water receiving bottom surface 8101; First water receiving surface 81011; Second water receiving surface 81012; Second rear water receiving surface 810121; Second front water receiving surface 810122; Heat exchanger support part 810123; Third water receiving surface 81013; Water receiving tray drain hole 8102; First water receiving plate 8103; First support rib 81031; First support rib surface 810311; First support rib support surface 8103111; Second water receiving plate 8104; Second front water receiving plate 81041; Second rear water receiving plate 81042;Third support rib 81043; Fourth support rib 80144; Fourth water receiving plate 8105; Fourth water receiving surface 81051; Fifth water receiving plate 8106; Sixth water receiving plate 8107; Seventh water receiving plate 8108; Seventh water receiving surface 81081; Box bottom plate 820; First through hole in box bottom plate 8201; First box bottom plate 8202; Second box bottom plate 8203; First positioning part 8204; Compressor cavity 821; Second drainage part 822; Second snap-fit ​​part 8221; Second positioning part 8222; Second drainage channel 8223; First baffle plate 8224; Heating pipe 831; Bottom heating pipe 8311. Detailed Implementation

[0208] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In this application, unless otherwise expressly specified and limited, the terms "installed," "connected," "joined," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0209] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0210] In this application, the freezer includes a cabinet, a door, and a refrigeration system. The cabinet is typically made of metal or plastic and has a certain degree of insulation. The interior of the cabinet contains either a refrigerator compartment or a freezer compartment. The door is used to open and close the freezer. The refrigeration system includes a compressor, a condenser, an evaporator, and refrigerant. It transfers heat from the inside of the freezer to the outside, thereby achieving a cooling effect.

[0211] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0212] Referring to Figures 1 and 2, in a schematic embodiment of the freezer of this application, the freezer includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opening in the mounting box 400; a compressor 842 disposed in the cabinet 100; an evaporator 300 disposed inside the mounting box 400 and connected to the compressor 842; a ventilation shell 500 fitted to the side wall of the cabinet 100 and communicating with the mounting box 400; and a fan 700 disposed inside the ventilation shell 500; wherein, the cabinet 100... The internal space consists of a first receiving cavity 103, a second receiving cavity 104, and a third receiving cavity 105 connected in sequence; the second receiving cavity 104 is located above the mounting box 400; the first air outlet 601 is opened on the side of the mounting box 400 facing the first receiving cavity 103; the second air outlet 602 is opened on the side of the ventilation shell 500 facing the first receiving cavity 103; the second air outlet 602 is located above the first air outlet 601; the third air outlet 603 is opened on the side of the ventilation shell 500 facing the second receiving cavity 104; and the fourth air outlet 604 is opened on the side of the ventilation shell 500 facing the third receiving cavity 105.

[0213] In some embodiments, referring to FIG1, the housing 100 includes an inner liner 101. Referring to FIG2, a mounting box 400 is disposed on the inner bottom wall of the housing 100, a ventilation shell 500 is attached to the side wall of the housing 100, a third air outlet 603 and a fourth air outlet 604 are formed in the ventilation shell 500, and the ventilation shell 500 communicates with the mounting box 400. Referring to FIG3, a first air outlet 601 is formed in the mounting box 400.

[0214] In some embodiments, under the action of the fan 700, air enters the mounting box 400 through the return air inlet 401, and cools down by heat exchange as it passes through the evaporator 300, forming cold air. The cold air enters the interior of the housing 100 through the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604. Specifically, the cold air from the first and second air outlets 601 is blown towards the first receiving cavity 103; the cold air from the third air outlet 603 is blown towards the second receiving cavity 104; and the cold air from the fourth air outlet 604 is blown towards the third receiving cavity 105, thus achieving enveloping airflow and completing air circulation.

[0215] In some embodiments, "enveloping airflow" typically refers to the airflow design within the freezer. Through the arrangement of air outlets and return vents, cold air is allowed to circulate and evenly cover every corner of the freezer. This ensures a more uniform temperature inside the freezer, preventing cold air from concentrating in one area while other areas remain cold enough.

[0216] Air is discharged through the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604, all of which are connected to the interior of the ventilation shell 500. Only one ventilation shell 500 is needed to achieve the air discharge of four outlets, which achieves the effect of surrounding air and circulating air while saving costs and improving the cooling capacity of the freezer.

[0217] In some embodiments, the first receiving cavity 103, the second receiving cavity 104, and the third receiving cavity 105 within the housing 100 can be implemented as actual physical division and isolation, or simply as internal space definition.

[0218] In some embodiments, the first receiving cavity 103 may be separated from the second receiving cavity 104 and the third receiving cavity 105 by a partition or other physical structure. The partition may be fixed or removable for easy cleaning and maintenance. The first receiving cavity 103 may have a separate door or opening for user access and use of this space. The first air outlet 601 and the second air outlet 602 respectively supply cool air to the first receiving cavity 103 to ensure independent temperature control and cooling effect.

[0219] In some embodiments, the second receiving cavity 104 is located between the first receiving cavity 103 and the third receiving cavity 105, and is separated from these two receiving cavities by a partition. The second receiving cavity 104 may also have a separate door or opening for easy access by the user. The third air outlet 603 delivers cool air to the second receiving cavity 104 to ensure its independent cooling effect.

[0220] In some embodiments, the third receiving cavity 105 may be separated from the first receiving cavity 103 and the second receiving cavity 104 by a partition. The third receiving cavity 105 may also have a separate door or opening for easy access to items by the user. The fourth air outlet 604 delivers cool air to the third receiving cavity 105 to ensure its independent temperature control.

[0221] In some embodiments, the first receiving cavity 103 has no actual physical isolation; it is merely a portion of the area within the housing 100 defined by design. The first air outlet 601 and the second air outlet 602 deliver cool air to this area, which circulates throughout the housing. Because there is no physical isolation, users can freely store different types of items as needed.

[0222] In some embodiments, the second receiving cavity 104 is located to one side of the first receiving cavity 103, in the area where the evaporator 300 and the mounting box 400 are located. The third air outlet 603 delivers cool air to this area, but the cool air flows throughout the entire housing 100. Because there is no physical isolation, the user can use this space flexibly as needed.

[0223] In some embodiments, the third receiving cavity 105 is located on the side of the second receiving cavity 104 opposite to the first receiving cavity 103. The third receiving cavity 105 is also distinguished from the first receiving cavity 103 and the second receiving cavity 104 by definition rather than physical separation. A fourth air outlet 604 delivers cold air to this area, and the cold air circulates throughout the entire cabinet 100. Because there is no physical separation, the user can use the entire interior space of the freezer as a whole.

[0224] In some embodiments, a fourth, fifth, or other refrigeration chamber can be added to the existing three chambers to meet the needs of more partitioned refrigeration. More air outlets are provided for each additional chamber to ensure that each chamber is cooled. An independent temperature control system is installed for each chamber, allowing users to adjust the temperature of different chambers as needed. Temperature and humidity sensors are installed in each chamber to enable real-time monitoring of the internal environment. An intelligent control system is introduced to automatically adjust the temperature, humidity, and other parameters of each chamber based on sensor data, improving the intelligence level of the freezer.

[0225] In some embodiments, more layers of air ducts can be added, with each layer responsible for cooling a specific area. That is, in addition to the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604, one or more other air outlets can be provided at different locations within the housing 100.

[0226] In some embodiments, the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 are configured as adjustable air outlets. Users can adjust the opening, closing, and direction of the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 as needed to achieve more precise distribution of cool air.

[0227] In some embodiments, multiple fans 700 are arranged within the ventilation housing 500 to work together to enhance airflow, increase the coverage and circulation speed of cold air. Each fan 700 is independently controlled and can be adjusted according to the cooling needs of different areas to ensure uniform temperature inside the freezer.

[0228] In some embodiments, referring to FIG4, the housing 100 is rectangular, and a door 200 is provided at the opening of the housing 100. Referring to FIG5, the mounting box 400 is rectangular, and the length direction of the mounting box 400 is perpendicular to the length direction of the housing 100. In some embodiments, the two sides in the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal.

[0229] In some embodiments, the enclosure 100 can also be designed in other shapes, such as a cylinder with a circular bottom and a flat top. The entire interior space of the enclosure is annular. The front and rear sides can be defined based on a portion of the cylinder, such as the location of the door or the area where the control panel is located. The mounting box 400 can also be designed as a cylinder, located at the bottom of the enclosure, with its length perpendicular to the axis of the enclosure. The mounting box 400 can be installed at the center or off-center position within the enclosure 100 to achieve different cold air distributions. The cylindrical design helps optimize the use of space inside the enclosure and reduce cold air dead zones. In some other embodiments, the enclosure 100 can also be designed as circular or elliptical, and the mounting box 400 can be designed as rectangular; the enclosure 100 can also be designed as polygonal, such as hexagonal, and the mounting box 400 can be designed as rectangular or polygonal.

[0230] In some embodiments, referring to FIG6, the first air outlet 601 is located on the side of the mounting box 400 away from the return air outlet 401. This prevents the cold air output from the first air outlet 601 from being drawn into the return air outlet 401, thus ensuring that the cold air can adequately cool the interior of the box 100. In some embodiments, referring to FIG7, the first air outlet 601 is located on the side of the evaporator 300 away from the return air outlet 401. This ensures that the airflow passing through the return air outlet 401 can be fully heat-exchanged to form cold air before being output through the first air outlet 601, thereby improving the cooling effect. In some embodiments, the return air outlet 401 is located near one end of the mounting box 400. The ventilation shell 500 is located at the end of the mounting box 400 away from the return air outlet 401; this ensures that the airflow passing through the return air outlet 401 can be fully heat-exchanged to form cold air before entering the ventilation shell 500, thereby improving the cooling effect.

[0231] In some embodiments, referring to FIG8, an item may be placed inside the inner liner 101.

[0232] In some embodiments, the position of the return air vent 401 can be adjusted according to the temperature and airflow conditions inside the cabinet 100, for example, through a sliding or rotating mechanism. This allows the return air vent 401 to dynamically adapt to changes in the environment inside the freezer, maintaining good airflow circulation at all times.

[0233] Furthermore, referring again to Figures 1 and 2, this application also provides a freezer, which includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opened in the mounting box 400; a compressor 842 disposed in the cabinet 100; an evaporator 300 disposed inside the mounting box 400 and connected to the compressor 842; a ventilation shell 500 fitted to the side wall of the cabinet 100 and communicating with the mounting box 400; and a fan 700 disposed inside the ventilation shell 500; wherein, the inner wall of the cabinet 100... The space consists of a first receiving cavity 103, a second receiving cavity 104, and a third receiving cavity 105 connected in sequence; the second receiving cavity 104 is located above the mounting box 400; the first air outlet 601 is opened on the side of the ventilation shell 500 facing the first receiving cavity 103; the second air outlet 602 is opened on the side of the ventilation shell 500 facing the first receiving cavity 103; the second air outlet 602 is located above the first air outlet 601; the third air outlet 603 is opened on the side of the ventilation shell 500 facing the second receiving cavity 104; and the fourth air outlet 604 is opened on the side of the ventilation shell 500 facing the third receiving cavity 105.

[0234] In some embodiments, referring to FIG9, the freezer may include a heat insulation component 402. Referring to FIGS. 2 and 10, a fan 700 is disposed within a ventilation housing 500. Referring to FIG11, a first grille 6011 is provided at a first air outlet 601, and the first grille 6011 is detachably connected to the first air outlet 601.

[0235] In some embodiments, under the action of the fan 700, air enters the mounting box 400 through the return air inlet 401, and cools down by heat exchange as it passes through the evaporator 300, forming cold air. The cold air enters the interior of the housing 100 through the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604. Specifically, the cold air from the first and second air outlets 601 is blown towards the first receiving cavity 103; the cold air from the third air outlet 603 is blown towards the second receiving cavity 104; and the cold air from the fourth air outlet 604 is blown towards the third receiving cavity 105, thus achieving enveloping airflow and completing air circulation. Air is discharged through the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604, all of which are connected to the interior of the ventilation shell 500. Only one ventilation shell 500 is needed to achieve the air discharge of four outlets, which achieves the effect of surrounding air and circulating air while saving costs and improving the cooling capacity of the freezer.

[0236] In some embodiments, the housing 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the two ends of the length direction of the mounting box 400 are respectively connected to the two inner sidewalls of the width direction of the housing 100. In some embodiments, the first air outlet 601 is located on the side of the evaporator 300 away from the return air outlet 401. This ensures that the airflow through the return air outlet 401 can be fully heat-exchanged to form cold air before being output through the first air outlet 601, thereby improving the cooling effect. In some embodiments, referring to FIG12, the return air outlet 401 is located near the end of the mounting box 400. Referring to FIG13, the evaporator 300 is installed in the area where the mounting box 400 is located. A ventilation housing 500 is located at the end of the mounting box 400 away from the return air inlet 401; this ensures that the airflow through the return air inlet 401 can be fully heat-exchanged to form cold air before entering the ventilation housing 500, thereby improving the cooling effect. In some embodiments, a step 800 is formed on the inner bottom wall of the housing 100, and the mounting box 400 is fitted against the side wall of the step 800. The step 800 is formed so that the compressor 842 can be accommodated below the step 800, facilitating the overall layout of the housing 100. In some embodiments, the first air outlet 601 is away from the step 800, so that the air outlet of the first air outlet 601 is directed towards the first receiving cavity 103. In some embodiments, referring to FIG14, the internal area of ​​the freezer is supplied with cold air through a third air outlet 603 and a fourth air outlet 604; referring to FIGS. 15 and 16, the third air outlet 603 and the fourth air outlet 604 are located on opposite sides of the ventilation housing 500; referring to FIGS. 17 and 18, the second air outlet 602 and the third air outlet 603 are also located on opposite sides of the ventilation housing 500; referring to FIGS. 19 and 20, the second air outlet 602 and the third air outlet 603 are opposite to each other; referring to FIG. 21, the number of second air outlets 602 can be multiple; Referring to Figure 22, the second air outlet 602 and the fourth air outlet 604 are arranged in opposite directions; referring to Figure 23, there can be multiple fourth air outlets 604, and they are located near the opening of the housing 100; referring to Figure 24, unlike Figure 23, the third air outlet 603 is located near the opening of the housing 100; referring to Figure 25, from a top view, the second air outlet 602 and the fourth air outlet 604 are arranged in opposite directions; referring to Figure 26, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 are located at different positions on the ventilation housing 500. In some embodiments, in the housing 100, the third receiving cavity 105 is located above the step 800. In some embodiments, the upper surface of the mounting box 400 is flush with the upper surface of the step 800. This improves the tidiness of the interior of the housing 100, thereby facilitating the user to place goods inside the housing 100 and increasing capacity.

[0237] In some embodiments, the step 800 and the mounting box 400 are designed as an integrated structure. This design not only improves space utilization but also enhances the overall structural strength and stability. An independent cooling system is arranged within the integrated step and mounting box, providing dedicated cooling for the compressor within the step and supplying cool air to the interior of the cabinet. This design ensures stable compressor operation and reduces the impact on the internal temperature of the cabinet. The integrated design simplifies the structure, making the installation and maintenance of the freezer more convenient. It also improves the compressor's efficiency and stability while enhancing internal temperature control.

[0238] In some embodiments, referring to FIG27, the plane containing the upper surface of the mounting box 400 is defined as a reference plane. The reference plane divides the first receiving cavity 103, with the first chamber 1031 below the reference plane and the second chamber 1032 above the reference plane. In some embodiments, referring to FIGS. 28 and 29, the first air outlet 601 faces the first chamber 1031. In some embodiments, the second air outlet 602 faces the second chamber 1032. Cold air output through the first air outlet 601 blows towards the first chamber 1031; cold air output through the second air outlet 602 blows towards the second chamber 1032. This ensures that cold air can fill the interior of the box 100 and improves the effect of enveloping and circulating air. In some embodiments, the depth direction of the first air outlet 601 and the second air outlet 602 is the same. Further, the air outlet directions of the first air outlet 601 and the second air outlet 602 are parallel. In some embodiments, referring to FIG30, the orientations of the second air outlet 602 and the fourth air outlet 604 are opposite. In some embodiments, referring to FIG31, the first chamber 1031 and the second chamber 1032 are of different sizes.

[0239] In some embodiments, the upper surface of the mounting box 400 is formed as a stepped surface, thereby designing two parallel reference surfaces to further divide the first receiving cavity into more chambers. For example, the first receiving cavity 103 can be divided into a first chamber, a second chamber, and a third chamber. Each chamber can be independently provided with an air outlet, thereby achieving a more precise distribution of cool air.

[0240] In some embodiments, the stepped surface formed on the upper surface of the mounting box 400 is movable vertically, allowing the partition height of the first receiving cavity to be adjusted according to actual needs. For example, the user can adjust the stepped surface vertically via mechanical or electronic control to change the height ratio of each chamber. The position and angle of the air outlet can be changed with the adjustment of the stepped surface to ensure that cool air always covers the target chamber.

[0241] Further, referring to Figures 32 and 33, the air outlets 602 and 604 are arranged in opposite directions. In some embodiments, there may be multiple first air outlets 601. In some embodiments, there may be multiple second air outlets 602. In some embodiments, there may be multiple third air outlets 603.

[0242] In some embodiments, the number of fourth air outlets 604 can be multiple. In some embodiments, multiple second air outlets 602 are spaced apart along the height of the housing 100. In some embodiments, the air outlet direction of the second air outlets 602 away from the bottom wall of the housing 100 is inclined away from the bottom wall of the housing 100. That is, the air outlet direction of the topmost second air outlet 602 is inclined upward. In some embodiments, multiple fourth air outlets 604 are spaced apart along the height of the housing 100. In some embodiments, the air outlet direction of the fourth air outlets 604 away from the bottom wall of the housing 100 is inclined away from the bottom wall of the housing 100. That is, the air outlet direction of the topmost fourth air outlet 604 is inclined upward.

[0243] In some embodiments, the volumes of the first chamber 1031, the second chamber 1032, the second receiving chamber 104, and the third receiving chamber 105 are V1, V2, X2, and X3, respectively. The air outlet cross-sectional areas of the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 are S1, S2, S3, and S4, respectively. Wherein, V1 + V2 + X2 + X3 = V20, where V20 is the total volume within the housing 100. S1 + S2 + S3 + S4 = S20, where S20 is the sum of the air outlet cross-sectional areas of the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604. In some embodiments, when there are multiple first air outlets 601, S1 is the sum of the cross-sectional areas of the multiple first air outlets 601. In some embodiments, when there are multiple second air outlets 602, S2 is the sum of the cross-sectional areas of the multiple second air outlets 602. In some embodiments, when there are multiple third air outlets 603, S3 is the sum of the cross-sectional areas of the multiple third air outlets 603. In some embodiments, when there are multiple fourth air outlets 604, S4 is the sum of the cross-sectional areas of the multiple fourth air outlets 604. In some embodiments, the volume of the first chamber 1031 is 52.6 liters, i.e., V1 = 52.6 L. In some embodiments, the volume of the second chamber 1032 is 129.8 liters, i.e., V2 = 129.8 L. In some embodiments, the volume of the second receiving cavity 104 is 46 liters, i.e., X2 = 46 L. In some embodiments, the volume of the third receiving cavity 105 is 48.8 liters, i.e., X3 = 48.8 L. In some embodiments, the total volume inside the housing 100 is 277.2 liters, i.e., V20 = 277.2 L. In some embodiments, the air outlet cross-sectional area of ​​the first air outlet 601 is 648 square millimeters, i.e., S1 = 648 mm. 2 In some embodiments, the outlet cross-sectional area of ​​the second air outlet 602 is 2398.8 square millimeters, i.e., S2 = 2398.8 mm. 2 In some embodiments, the outlet cross-sectional area of ​​the third air outlet 603 is 1632 square millimeters, i.e., S3 = 1632 mm. 2 In some embodiments, the outlet cross-sectional area of ​​the fourth air outlet 604 is 1353.6 square millimeters, i.e., S4 = 1353.6 mm. 2 In some embodiments, the total cross-sectional area of ​​the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 is 6032.4 square millimeters, i.e., S20 = 6032.4 mm. 2In some embodiments, the air outlet cross-sectional area of ​​the first air outlet 601 refers to the cross-sectional area of ​​the first air outlet 601 that can be used for airflow passage. In some embodiments, the air outlet cross-sectional area of ​​the second air outlet 602 refers to the cross-sectional area of ​​the second air outlet 602 that can be used for airflow passage. In some embodiments, the air outlet cross-sectional area of ​​the third air outlet 603 refers to the cross-sectional area of ​​the third air outlet 603 that can be used for airflow passage. In some embodiments, the air outlet cross-sectional area of ​​the fourth air outlet 604 refers to the cross-sectional area of ​​the fourth air outlet 604 that can be used for airflow passage.

[0244] In some embodiments, (S1 / S20) / (V1 / V20)≥0.27 and (S1 / S20) / (V1 / V20)≤0.87 are satisfied. The air outlet cross-sectional area of ​​the first air outlet 601 is defined to achieve better air circulation and surround air effect under this size condition.

[0245] In some embodiments, when (S1 / S20) / (V1 / V20) = 0.27, the first air outlet 601 can meet a relatively low air volume requirement. This ensures that an enveloping airflow effect can be achieved while maintaining a low airflow rate and guaranteeing the cooling effect. In some embodiments, when (S1 / S20) / (V1 / V20) = 0.87, the airflow through the first air outlet 601 is relatively high. This achieves an enveloping airflow effect while providing a better cooling effect. In some embodiments, when (S1 / S20) / (V1 / V20) = 0.57, there is a better enveloping airflow effect, and the airflow rate and cooling effect are also better.

[0246] In some embodiments, (S2 / S20) / (V2 / V20)≥0.55 and (S2 / S20) / (V2 / V20)≤1.15 are satisfied. The outlet cross-sectional area of ​​the second air outlet 602 is defined to achieve better air circulation and surround airflow effects under these dimensional conditions.

[0247] In some embodiments, when (S2 / S20) / (V2 / V20) = 0.55, the second air outlet 602 can meet the requirement of a low air volume. This ensures that an enveloping airflow effect can be achieved while maintaining a low air volume, and also guarantees the cooling effect. In some embodiments, when (S2 / S20) / (V2 / V20) = 1.15, the air volume through the second air outlet 602 is relatively high. This achieves an enveloping airflow effect while maintaining a good cooling effect. In some embodiments, when (S2 / S20) / (V2 / V20) = 0.85, a good enveloping airflow effect, as well as a good air volume and cooling effect, are achieved.

[0248] In some embodiments, (S3 / S20) / (X2 / V20)≥0.9 and (S3 / S20) / (X2 / V20)≤1.93 are satisfied. This limits the air outlet cross-sectional area of ​​the third air outlet 603, achieving good air circulation and enveloping airflow effects under these size conditions. In some embodiments of this application, (S3 / S20) / (X2 / V20)≥0.9 and (S3 / S20) / (X2 / V20)≤1.5 are satisfied. This limits the air outlet cross-sectional area of ​​the third air outlet 603, satisfying air circulation under these size conditions. In some embodiments of this application, (S3 / S20) / (X2 / V20)≥1.33 and (S3 / S20) / (X2 / V20)≤1.93 are satisfied. This limits the air outlet cross-sectional area of ​​the third air outlet 603, achieving higher cooling capacity while satisfying air circulation and enveloping airflow effects under these size conditions.

[0249] In some embodiments, when (S3 / S20) / (X2 / V20) = 1.33, the third air outlet 603 can meet the requirement of a low air volume. This ensures that an enveloping airflow effect can be achieved while maintaining a low air volume, and also guarantees the cooling effect. In some embodiments, when (S3 / S20) / (X2 / V20) = 1.93, the air volume through the third air outlet 603 is relatively high. This achieves an enveloping airflow effect while maintaining a good cooling effect. In some embodiments, when (S3 / S20) / (X2 / V20) = 1.63, a good enveloping airflow effect is achieved, and both the air volume and cooling effect are good.

[0250] In some embodiments, (S4 / S20) / (X3 / V20)≥0.97 and (S4 / S20) / (X3 / V20)≤1.57 are satisfied. The air outlet cross-sectional area of ​​the fourth air outlet 604 is defined, and under this size condition, the air circulation and surrounding air effects are better.

[0251] In some embodiments, when (S4 / S20) / (X3 / V20) = 0.97, the fourth air outlet 604 can meet the requirement of a low air volume. This ensures that an enveloping airflow effect is achieved while maintaining a cooling effect, even with a relatively low air volume. In some embodiments, when (S4 / S20) / (X3 / V20) = 1.57, the air volume through the fourth air outlet 604 is relatively high. This achieves an enveloping airflow effect while maintaining a good cooling effect. In some embodiments, when (S4 / S20) / (X3 / V20) = 1.27, a good enveloping airflow effect is achieved, and both the air volume and cooling effect are good.

[0252] In some embodiments, the volume of the first chamber 1031 is 54.6 liters, i.e., V1 = 54.6 L. In some embodiments, the volume of the second chamber 1032 is 131.8 liters, i.e., V2 = 131.8 L. In some embodiments, the volume of the second receiving chamber 104 is 53 liters, i.e., X2 = 53 L. In some embodiments, the volume of the third receiving chamber 105 is 35.6 liters, i.e., X3 = 35.6 L. In some embodiments, the total volume within the housing 100 is 275 liters, i.e., V20 = 275 L. In some embodiments, the cross-sectional area of ​​the first air outlet 601 is 936 square millimeters, i.e., S1 = 936 mm². 2 In some embodiments, the outlet cross-sectional area of ​​the second air outlet 602 is 3270.8 square millimeters, i.e., S2 = 3270.8 mm. 2 In some embodiments, the outlet cross-sectional area of ​​the third air outlet 603 is 2496 square millimeters, i.e., S3 = 2496 mm. 2 In some embodiments, the cross-sectional area of ​​the fourth air outlet 604 is 1326 square millimeters, i.e., S4 = 1326 mm. 2 In some embodiments, the total cross-sectional area of ​​the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 is 8028.8 square millimeters, i.e., S20 = 8028.8 mm2.

[0253] In some embodiments, the following conditions are met: S1:S20≥0.28V1:V20 and S1:S20≤0.88V1:V20. This limits the cross-sectional area of ​​the first air outlet 601, providing good air circulation and surround airflow effects. In some embodiments, V1:S1≈0.06 (L / mm²). 2 In some embodiments, V1:S1≈0.058 (L / mm). 2 In some embodiments, V1:S1 = 0.0583 (L / mm). 2 In some embodiments, S1:S20≥0.05559 and S1:S20≤0.1747.

[0254] In some embodiments, the following conditions are met: S2:S20≥0.55V2:V20 and S2:S20≤1.15V2:V20. This limits the outlet cross-sectional area of ​​the second air outlet 602, providing good air circulation and surround airflow effects. In some embodiments, V2:S2≈0.04 (L / mm²). 2 In some embodiments, V2:S2≈0.0402 (L / mm) 2 In some embodiments, V2:S2 = 0.04029 (L / mm). 2In some embodiments, S2:S20≥0.2636 and S2:S20≤0.5511.

[0255] In some embodiments, the following conditions are met: S3:S20 ≥ 1.3X2:V20 and S3:S20 ≤ 1.9X2:V20. This limits the cross-sectional area of ​​the third air outlet 603, providing good air circulation and surround airflow effects. In some embodiments, X2:S3 ≈ 0.02 (L / mm²). 2 In some embodiments, X2:S3≈0.021 (L / mm) 2 In some embodiments, X2:S3 = 0.02123 (L / mm). 2 In some embodiments, S3:S20≥0.25 and S3:S20≤0.366.

[0256] In some embodiments, the following conditions are met: S4:S20≥0.87X3:V20 and S4:S20≤1.37X3:V20. This limits the outlet cross-sectional area of ​​the fourth air outlet 604, providing good air circulation and surround airflow effects. In some embodiments, X3:S3≈0.026 (L / mm²). 2 In some embodiments, X3:S3≈0.0268 (L / mm). 2 In some embodiments, X3:S3 = 0.02684 (L / mm). 2 In some embodiments, S4:S20≥0.1126 and S4:S20≤0.1773.

[0257] This application presents experiments on the stable condition under loaded state, and the experimental data are as follows:

[0258] The above data represents experimental data of the freezer under load. The positions of freezing point 1, freezing point 2, freezing point 3, freezing point 4, freezing point 5, freezing point 6, and freezing point 7 were set according to the international standard IEC62552 2015.

[0259] According to industry and international standards, the performance data of a freezer is obtained by calculating the temperature difference between the highest and lowest temperatures in the freezer under loaded conditions.

[0260] The lowest of the maximum values ​​is -21.90°C at freezing point 4; the highest is -18.70°C at freezing point 1.

[0261] The difference between freezing point 4 and freezing point 1 is 3.2℃.

[0262] In related technologies, the temperature difference between the highest and lowest temperatures in the maximum value of a refrigerated display case under loading conditions is greater than 4°C.

[0263] Therefore, the above experiments can prove that the temperature difference inside the freezer of this application is small, the temperature inside the freezer is more uniform, and the cooling effect is better.

[0264] Furthermore, this application also measures the internal temperature of the freezer after defrosting. The temperature of the hottest spot inside the freezer after defrosting is -17.5℃. This differs from the temperature of the hottest spot in the table above, which is -18.70℃; the difference is 1.2℃, representing the defrost drift value. Compared with related technologies, the defrost drift value of this application is lower, indicating a smaller temperature difference before and after defrosting, and better cooling effect inside the freezer.

[0265] In addition, this application also conducted experiments under no-load conditions, and the experimental data are as follows:

[0266] The above data represents the experimental data of the freezer under no-load conditions. The positions of freezing point 1, freezing point 2, freezing point 3, freezing point 4, and freezing point 5 were set according to the international standard IEC62552 2015.

[0267] According to industry and international standards, the performance test data of the freezer is obtained by calculating the temperature difference between the highest and lowest temperatures in the integral average value under the unloaded state of the freezer.

[0268] The lowest temperature among the maximum values ​​is -19.38°C at freezing point 1; the highest value is -18.69°C at freezing point 3.

[0269] The difference between freezing point 1 and freezing point 3 is 0.69℃.

[0270] In related technologies, the temperature difference between the highest and lowest temperatures in the integral average value of a freezer under no-load conditions is greater than 1℃.

[0271] Therefore, the above experiments can prove that the temperature difference inside the freezer of this application is small, the temperature inside the freezer is more uniform, and the cooling effect is better.

[0272] In some embodiments, the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 can be designed as adjustable structures. Through mechanical or electronic control, the cross-sectional area of ​​the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 can be adjusted as needed. This design allows the system to automatically optimize air circulation and surround airflow based on current cooling requirements and chamber load. For example, under high load, the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 can automatically expand to increase airflow; under low load, the first air outlet 601, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 can contract to reduce airflow, thereby saving energy.

[0273] In some embodiments, the wind speed and air volume of the first air outlet 601, the second air outlet 602, the third air outlet 603 and the fourth air outlet 604 are adjusted according to actual needs, so that the cold air can be distributed more evenly to each chamber.

[0274] In some embodiments, the air outlet corresponding to each chamber is designed as a multi-level structure, and the air outlets of different levels can be opened or closed sequentially to precisely control the flow rate and direction of the cold air. For example, the first air outlet 601, the second air outlet 602, the third air outlet 603 and the fourth air outlet 604 can each contain three levels of openings of different sizes, which are opened sequentially as needed to control the output of cold air.

[0275] Referring again to Figures 1 and 2, this application also provides a freezer comprising: a cabinet 100, the top of which is open; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, a return air vent 401 opened in the mounting box 400, and a first air outlet 601 opened on one of the vertical side walls of the mounting box 400; an evaporator 300 disposed inside the mounting box 400; and a fan 700 disposed inside the mounting box 400. Under the action of the fan 700, air enters the mounting box 400 through the return air vent 401, and the air entering the mounting box 400 is heat-exchanged by the evaporator 300 and then output through the first air outlet 601. The first air outlet 601 is close to the bottom wall of the cabinet 100, so the cold air output through the first air outlet 601 is closer to the bottom of the cabinet 100, which can quickly cool the bottom of the cabinet 100.

[0276] In some embodiments, a door 200 is provided at the opening of the housing 100, and the door 200 is used to open or close the housing 100. In some embodiments, the housing 100 includes an inner liner 101 and an outer shell 102, with the inner liner 101 disposed inside the outer shell 102. In some embodiments, a device cavity is provided between the outer shell 102 and the inner liner 101, and a compressor 842 is disposed in the device cavity. The compressor 842 is connected to the evaporator 300, and the compressor 842 is used to input refrigerant into the evaporator 300 to change the temperature of the evaporator 300. In some embodiments, the evaporator 300 has an output section and an input end, with a return air vent 401 near the input end of the evaporator 300 and a first air outlet 601 near the output end of the evaporator 300. Air enters the housing 400 through the return air vent 401, and the air moves along the evaporator 300 under the action of the fan 700. The air is cooled as it passes through the evaporator 300, and the cold air moves to the output end of the evaporator 300 and is output through the first air outlet 601. This increases the contact area and duration between air and the evaporator 300. In some embodiments, the first air outlet 601 is directly formed in the mounting box 400 and communicates with the interior of the mounting box 400. The first air outlet 601 is connected to the output end of the evaporator 300.

[0277] In some embodiments, the evaporator 300 is designed as a double-layer or multi-layer structure, allowing air to pass through multiple cooling paths as it flows through the evaporator 300, thereby increasing the air's cooling contact area and time. For example, air can be divided into multiple paths after entering the evaporator 300, gradually cooling through each layer of the evaporator, and finally converging at the output end and being discharged through the first air outlet 601. This design can significantly improve cooling efficiency, and is particularly suitable for large freezers requiring rapid cooling. In some embodiments, the cooling paths inside the evaporator 300 are designed as a staggered structure, allowing air to form a more complex flow path as it passes through the evaporator 300, maximizing its contact with the cooling surfaces. This design can improve cooling performance without increasing the evaporator volume. In some embodiments, the evaporator 300 is divided into multiple segments, each with an independent output end connected to a different air outlet. For example, the front section of the evaporator 300 is connected to the first air outlet 601, the middle section is connected to the second air outlet 602, and the rear section is connected to the third air outlet 603. As the air passes through the evaporator 300 with different sections, it gradually cools down and is discharged from different air outlets.

[0278] In some embodiments, a step 800 is formed on the inner bottom wall of the housing 100, and the mounting box 400 is attached to the side wall of the step. The first air outlet 601 is away from the step. The step is formed so that the compressor can be accommodated below the step, which facilitates the overall layout of the housing 100. In some embodiments, the step is located at one end of the length direction inside the housing 100. The upper surface of the step is directly connected to the vertical side wall at one end of the length direction inside the housing 100. In some embodiments, the side of the mounting box 400 near the step is attached to the vertical side plate of the step. In some embodiments, the first air outlet 601 is opened on the side of the mounting box 400 away from the step. This ensures that the first air outlet 601 does not blow towards the step and that the first air outlet 601 can blow into the interior of the housing 100, improving the cooling effect of the freezer. In some embodiments, the vertical side wall of the step is perpendicular to the inner bottom wall of the inner housing 100. The upper surface of the step is parallel to the inner bottom wall of the housing 100.

[0279] In some embodiments, the steps are designed as a concealed structure, appearing flush with the inner bottom wall of the housing 100, but actually containing a movable step plate inside. When large items need to be placed, the step plate can be retracted or folded to form a flat inner bottom wall; when a compressor or other equipment needs to be accommodated, the step plate can be unfolded to form a step. The air vents automatically adjust their position according to the state of the steps. For example, when the steps are unfolded, the air vents face upwards; when the steps are retracted, the air vents face forwards or to the side. The concealed step design provides great flexibility, allowing users to adjust the internal space layout according to actual needs. The dynamic air vent layout ensures effective distribution of cool air regardless of the step's position.

[0280] In some embodiments, the mounting box 400 is further provided with a second air outlet. In some embodiments, the second air outlet is provided with a second grille. In some embodiments, the second grille is provided with a second ventilation hole.

[0281] In some embodiments, the second air outlet can be designed as a double-layer or multi-layer grille structure. Each grille layer has independent ventilation holes, but the arrangement of the ventilation holes differs. For example, the first layer has circular ventilation holes, the second layer has square holes, and the third layer has a mesh pattern. This design can further optimize the distribution of cold air by changing the airflow path and velocity, making the airflow more uniform. By adjusting the angle or position of each grille layer, the directionality of the cold air can also be controlled, improving the temperature uniformity of different areas inside the freezer. In some embodiments, adjustable movable grilles can be installed on the second air outlet, allowing users to manually or automatically adjust the position or angle of the grilles as needed, thereby controlling the direction and intensity of the cold air. The movable grilles can be designed as rotating, sliding, or opening and closing types. This design allows users to flexibly adjust the flow direction of the cold air according to the specific items placed inside the freezer, preventing the cold air from blowing directly onto items that do not require forced cooling. In some embodiments, in conjunction with sensors and an intelligent control system, the grilles of the second air outlet 602 can automatically adjust the opening and closing degree to maintain a better temperature inside the freezer. For example, when the temperature in a certain area is high, the grille automatically opens to increase the flow of cold air in that area; when the temperature is moderate, the grille partially closes to reduce the inflow of cold air. Intelligent control can automatically optimize the temperature distribution inside the freezer, improving energy efficiency. Those skilled in the art will understand that the structure and arrangement of the grille in the second air outlet 602 described above can be applied to the first air outlet 601, as well as air outlets located at other positions within the cabinet 100.

[0282] Please refer to Figures 1 and 2 again. In addition, this application also provides a freezer, which includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opened in the mounting box 400; an evaporator 300 disposed inside the mounting box 400; a ventilation shell 500 attached to the side wall of the cabinet 100 and communicating with the mounting box 400, with a first air outlet 601 opened on one of the vertical side walls of the ventilation shell 500; and a fan 700 disposed inside the ventilation shell 500. Under the action of the fan 700, air enters the mounting box 400 through the return air vent 401, and the air entering the mounting box 400 enters the ventilation shell 500 after heat exchange by the evaporator 300 and is output through the first air outlet 601.

[0283] In some embodiments, the housing 100 is rectangular, and the opening of the housing 100 is formed on the upper surface of the housing 100. In some embodiments, a door 200 is provided at the opening of the housing 100, and the door 200 is used to open or close the housing 100. In some embodiments, the housing 100 includes an inner liner 101 and an outer shell 102, and the inner liner 101 is disposed inside the outer shell 102. In some embodiments, referring to FIG86, a device cavity is provided between the outer shell 102 and the inner liner 101, and a compressor 842 is disposed in the device cavity. The compressor 842 is connected to the evaporator 300, and the compressor is used to input refrigerant into the evaporator 300 to change the temperature of the evaporator 300. In some embodiments, the inner bottom wall of the housing 100 is horizontal. In some embodiments, the longitudinal direction of the evaporator 300 is horizontal. In some embodiments, the longitudinal direction of the evaporator 300 is perpendicular to the longitudinal direction of the housing 100. In some embodiments, the mounting box 400 is rectangular. The longitudinal direction of the mounting box 400 is the same as the longitudinal direction of the evaporator 300. In some embodiments, the evaporator 300 has an output section and an input end, with a return air vent 401 near the input end of the evaporator 300 and a first air outlet 601 near the output end of the evaporator 300. Air enters the mounting housing 400 through the return air vent 401, moves along the evaporator 300 under the action of the fan 700, and is cooled as it passes through the evaporator 300. The cooled air moves to the output end of the evaporator 300 and is output through the first air outlet 601. This increases the contact area and duration between the air and the evaporator 300. In some embodiments, a ventilation shell 500 is disposed at one end of the mounting housing 400 near the output end of the evaporator 300. In some embodiments, a step is formed on the inner bottom wall of the housing 100, and the mounting housing 400 is fitted against the side wall of the step; the first air outlet 601 faces away from the step. The step allows the compressor to be accommodated below it, facilitating the overall layout of the housing 100. In some embodiments, the step is located at one end of the length direction within the housing 100. The upper surface of the step is directly connected to the vertical side wall at one end of the length direction inside the housing 100. In some embodiments, the side of the mounting box 400 near the step is attached to the vertical side plate of the step.

[0284] In some embodiments, the first air outlet 601 is located on the side of the ventilation housing 500 away from the step. This ensures that the first air outlet 601 does not blow towards the step and that it can blow towards the interior of the cabinet 100, improving the cooling effect of the freezer. In some embodiments, the vertical sidewall of the step is perpendicular to the inner bottom wall of the inner cabinet 100. The upper surface of the step is parallel to the inner bottom wall of the cabinet 100. In some embodiments, a reference surface is defined, the vertical side of the mounting box 400 away from the step is located on the reference surface, and the side of the cabinet 100 away from the step on the reference surface is a first receiving cavity, with the first air outlet 601 facing the first receiving cavity. This design allows the airflow from the first air outlet 601 to blow towards the first receiving cavity, enabling the first receiving cavity to cool quickly and improving the cooling speed. In some embodiments, the space above the mounting box 400 inside the cabinet 100 is a second receiving cavity. In some embodiments, the second receiving cavity is the space inside the cabinet 100 between the reference surface and the vertical sidewall of the step. In some embodiments, the space above the step is a third receiving cavity. In some embodiments, the interior of the housing 100 is divided by a first receiving cavity, a second receiving cavity, and a third receiving cavity. That is, the first receiving cavity, the second receiving cavity, and the third receiving cavity form the internal space of the housing 100. In some embodiments, the volume of the first receiving cavity is larger than that of the second receiving cavity. The volume of the first receiving cavity is larger than that of the third receiving cavity. Because the first receiving cavity has the largest volume, it requires more cold air. Therefore, the first air outlet 601 is oriented towards the first receiving cavity to improve the cooling effect on the first receiving cavity.

[0285] In some embodiments, referring again to FIG11, a first grille 6011 is provided at the first air outlet 601, and the first grille 6011 is detachably connected to the first air outlet 601. The first grille 6011 can partially block the airflow through the first air outlet 601. By changing the first grille 6011 to adjust the airflow through the first air outlet 601, the cooling capacity can be adjusted according to different needs. In some embodiments, the first grille 6011 has a first ventilation hole, and the air output through the first air outlet 601 is input into the housing 100 through the first ventilation hole. In some embodiments, the first grille 6011 has multiple first ventilation holes, and the multiple first ventilation holes together realize the output of cold air. In some embodiments, the number of first ventilation holes of different first grilles 6011 can be different. Different first grilles 6011 can be replaced according to different needs to achieve different airflow and thus change the cooling effect. In some embodiments, the aperture of the first ventilation holes of different first grilles 6011 can be different. Different first grilles 6011 can be replaced according to different needs to achieve different airflow and thus change the cooling effect. In some embodiments, the aperture of all the first ventilation holes on different first grilles 6011 may be different. This ensures that the air volume of different first grilles 6011 is different. In some embodiments, the length direction of the first grille 6011 is the same as the length direction of the first air outlet 601. In some embodiments, if there are multiple first air outlets 601, the multiple first air outlets 601 are spaced apart along the length direction of the first grille 6011. In some embodiments, if there are multiple first air outlets 601, the multiple first air outlets 601 are spaced apart along the length direction of the first air outlet 601. In some embodiments, the first grille 6011 and the first air outlet 601 are connected by snap-fit ​​and slot connection. In some embodiments, the first grille 6011 and the first air outlet 601 are connected by threaded connectors. Threaded connectors include, but are not limited to, screws and bolts.

[0286] In some embodiments, a magnetic connection is used at the junction of the first grille 6011 and the first air outlet 601. By embedding magnetic material along the edges of the first grille 6011 and the first air outlet 601, the user only needs to bring the grille close to the air outlet, and the magnet will automatically attract them together. This design allows for quick installation and removal without any tools, facilitating cleaning or maintenance. The magnetic force can be adjusted by selecting appropriate magnetic materials and magnet sizes to ensure a stable connection during normal use, while allowing for easy separation when disassembly is required. In some embodiments, the first grille 6011 is connected to the first air outlet 601 via a built-in spring clip. The user can easily install or remove the grille by pressing or pulling a specific area on it. The spring clip automatically locks after resetting, ensuring a stable connection. The spring clip can be designed to be hidden inside the grille, resulting in a clean and aesthetically pleasing appearance while providing sufficient elasticity and durability. In some embodiments, a slide rail connection is designed between the first grille 6011 and the first air outlet 601. The grille slides into the slide rail and is fixed in place once it reaches the designated position. The slide rail can be designed with locking mechanisms to ensure it does not easily loosen after sliding into place. The sliding rail connection method makes the installation and removal of the grille smoother and is suitable for larger or heavier grille components. Those skilled in the art will understand that the connection method and arrangement of the first air outlet 601 and the first grille 6011 described above can be applied to air outlets and corresponding grilles located in other positions within the housing 100, such as the second air outlet, third air outlet, fourth air outlet, and their respective corresponding grilles.

[0287] In some embodiments, the first air outlet 601 is rectangular. In some embodiments, the length direction of the first air outlet 601 is vertically oriented, and the top of the first air outlet 601 is not higher than the top wall of the mounting box 400. This design keeps the height of the first air outlet 601 low, ensuring that the first air outlet 601 is close to the inner bottom wall of the box 100, ensuring that the cold air output through the first air outlet 601 can quickly reach the bottom of the box 100, improving the cooling speed of the bottom of the box 100. In some embodiments, the depth direction of the first air outlet 601 is the same as the length direction of the box 100. In some embodiments, the air outlet direction of the first air outlet 601 is the same as the length direction of the box 100. In some embodiments, the air outlet direction of the first air outlet 601 is the same as the depth direction of the first air outlet 601. This design allows the cold air output through the first air outlet 601 to quickly fill the interior of the box 100, reducing the obstruction of cold air during movement and improving the cooling of the interior of the box 100. In some embodiments, the fan 700 is a centrifugal fan, with its circumferential direction aligned with the longitudinal direction of the evaporator 300; the first air outlet 601 is located on one side of the peripheral wall of the centrifugal fan. The centrifugal fan can quickly output the airflow passing through the evaporator 300 through the first air outlet 601, increasing the air volume and air velocity. In some embodiments, the fan 700 is an axial flow fan, positioned between the first air outlet 601 and the evaporator 300, with its axial direction aligned with the longitudinal direction of the evaporator 300. In some embodiments, the fan 700 is an axial flow fan, positioned between the first air outlet 601 and the evaporator 300, with its axial direction aligned with the depth direction of the first air outlet 601.

[0288] In some embodiments, centrifugal fans and axial fans are used in combination. The centrifugal fan initially accelerates the airflow. After passing through the evaporator 300, the airflow enters the axial fan, further increasing the air velocity and exiting through the first air outlet 601. This hybrid design enhances the penetration and coverage of the airflow while maintaining a high air volume. In some embodiments, the operation of the fan 700 employs an intelligent switching mechanism, automatically switching between centrifugal and axial fans based on the temperature and load requirements within the freezer. For example, a centrifugal fan is used for rapid cooling when the freezer starts up, and when the temperature stabilizes, the axial fan is switched to maintain the cooling effect. This saves energy while ensuring cooling performance. In some embodiments, a built-in air guide structure, such as air guide vanes or air guide shrouds, is designed around the centrifugal or axial fan to guide the airflow to the first air outlet 601. The air guide structure can be optimized according to the type of fan; for example, spiral air guide vanes can be designed around the centrifugal fan, while a straight air guide shroud can be used for the axial fan. This integrated design reduces airflow loss, improves airflow efficiency, and allows for precise control of airflow direction and distribution.

[0289] In some embodiments, referring again to FIG9, a heat insulation member 402 is provided inside the mounting box 400, and the heat insulation member 402 is located on the side of the evaporator 300 near the interior of the box 100. The heat insulation member 402 provides heat insulation to prevent food inside the box 100 from coming too close to the evaporator 300 and freezing. In some embodiments, the heat insulation member 402 includes an upper heat insulation plate, which is disposed above the evaporator 300. In some embodiments, the heat insulation member 402 includes a side heat insulation plate, which is disposed on the side of the evaporator 300 away from the step. In some embodiments, the upper heat insulation plate and the side heat insulation plate are connected to each other.

[0290] In some embodiments, the insulation component 402 employs a multi-layer insulation panel structure. Each layer of the insulation panel is made of a different material; for example, the inner layer is a high-efficiency thermally conductive material to quickly absorb heat from the evaporator 300, the middle layer is a thermally insulating material, and the outer layer is a reflective material to reduce heat radiation transfer to the food. The multi-layer insulation panel provides better insulation, further reducing the direct impact of the evaporator 300 on the food inside the housing 100. In some embodiments, ventilation holes or ducts are designed on the insulation component 402 to allow air to circulate through the insulation panel while maintaining good insulation. This allows air to circulate between the evaporator 300 and the interior of the housing 100, further improving cooling efficiency and preventing the food from becoming too cold. The ventilation holes of the ventilated insulation panel can be set to an adjustable size to control airflow. In some embodiments, a small fan is integrated into the insulation component 402 to promote airflow between the evaporator 300 and the insulation panel. This design allows for uniform distribution of cooling airflow and reduces the likelihood of ice formation on the food surface. The fan can automatically start or stop based on feedback from the temperature sensor, optimizing airflow inside the freezer.

[0291] In some embodiments, a second air outlet is also provided on the ventilation housing 500. In some embodiments, a second grille is provided on the second air outlet. In some embodiments, a second ventilation hole is provided on the second grille. In some embodiments, the return air inlet 401 is a first return air inlet, which is located on the upper surface of the mounting box 400, connecting the interior of the mounting box 400 with the outside. Air enters the mounting box 400 from the first return air inlet above the mounting box 400, is cooled by the evaporator 300, and is then output through the first air outlet 601 under the action of the fan 700. In some embodiments, the return air inlet 401 is a second return air inlet, which is located on the upper surface of the mounting box 400, connecting the interior of the mounting box 400 with the outside. Air enters the mounting box 400 from the side through the second return air inlet, is cooled by the evaporator 300, and is then output through the second air outlet under the action of the fan 700. In some embodiments, the return air vent 401 includes both a first return air vent and a second return air vent. The first return air vent is located on the upper surface of the mounting box 400, connecting the interior of the mounting box 400 to the outside. The second return air vent is also located on the upper surface of the mounting box 400, connecting the interior of the mounting box 400 to the outside. By simultaneously returning air through the first and second return air vents, the return air volume is increased, thereby increasing the air volume cooled by the evaporator 300, and improving the cooling speed and cooling effect.

[0292] In some embodiments, referring again to FIG2, the step 800 may also be formed by bending the inner liner 101. In some embodiments, the area below the step 800 forms a device cavity. In some embodiments, the compressor 842 is disposed within the device cavity below the step 800.

[0293] Referring again to Figures 1 and 2, in a schematic embodiment of the freezer of this application, the freezer includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opened in the mounting box 400; a compressor disposed in the cabinet 100; an evaporator 300 disposed inside the mounting box 400 and connected to the compressor; and a ventilation shell 500 fitted to the side wall of the cabinet 100 and communicating with the mounting box 400. Referring to Figures 27 to 33, the internal space of the cabinet 100 is composed of a first receiving cavity, a second receiving cavity, and a third receiving cavity connected in sequence; the second receiving cavity is located above the mounting box 400; a fourth air outlet 604 is opened on the side of the ventilation shell 500 facing the third receiving cavity; and a third air outlet 603 is opened on the side of the ventilation shell 500 facing the second receiving cavity.

[0294] In some embodiments, the cold air cooled by the evaporator 300 enters the ventilation housing 500, and an air duct for the flow of cold air is formed inside the ventilation housing 500. The cold air is output to the room through the fourth air outlet 604 and the third air outlet 603. Because the fourth air outlet 604 and the third air outlet 603 have different air outlet directions, the effect of air circulation is achieved, and multiple air ducts do not need to be set up, thus reducing costs.

[0295] In some embodiments, the housing 100 is rectangular, and the opening of the housing 100 is formed on the upper surface of the housing 100. In some embodiments, the length direction of the housing 100 is horizontal. In some embodiments, the first receiving cavity, the second receiving cavity, and the third receiving cavity are arranged along the length direction of the housing 100. In some embodiments, the length direction of the fourth air outlet 604 is the same as the height direction of the housing 100. The air volume through the fourth air outlet 604 is increased, and the fourth air outlet 604 is close to the corresponding inner wall of the housing 100, thereby improving the air circulation effect. In some embodiments, the air outlet direction of the fourth air outlet 604 is the same as the depth direction of the fourth air outlet 604. In some embodiments, the air outlet direction of the fourth air outlet 604 is the same as the length direction of the housing 100. In some embodiments, multiple fourth air outlets 604 are spaced apart along the height direction of the housing 100. In some embodiments, multiple fourth air outlets 604 are spaced apart along the length direction of the housing 100. By setting multiple fourth air outlets 604, the air volume output through the fourth air outlet 604 is increased, thereby improving the cooling effect. In some embodiments, the air outlet direction of the third air outlet 603 is the same as the depth direction of the third air outlet 603. In some embodiments, the length direction of the third air outlet 603 is the same as the length direction of the housing 100. In some embodiments, the air outlet direction of the third air outlet 603 is perpendicular to the length direction of the housing 100. In some embodiments, the air outlet direction of the third air outlet 603 is perpendicular to the side wall of the ventilation housing 500 in which it is located. In some embodiments, the third air outlet 603 is located near the opening of the housing 100. In some embodiments, multiple third air outlets 603 are spaced apart along the length direction of the housing 100. In some embodiments, multiple third air outlets 603 are spaced apart along the height direction of the housing 100. By providing multiple third air outlets 603, the air volume output through the third air outlets 603 is increased, thereby improving the cooling effect.

[0296] Please refer to Figures 1 and 2 again. Furthermore, this application also provides a freezer, comprising: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opening in the mounting box 400; a compressor 842 disposed in the cabinet 100; an evaporator 300 disposed inside the mounting box 400 and connected to the compressor 842; and a ventilation shell 500. The ventilation housing 500 is attached to the side wall of the housing 100 and is connected to the mounting box 400. Referring to Figures 27 to 33, the internal space of the housing 100 is composed of a first receiving cavity, a second receiving cavity, and a third receiving cavity connected in sequence. The second receiving cavity is located above the mounting box 400. The second air outlet 602 is opened on the side of the ventilation housing 500 facing the first receiving cavity. The fourth air outlet 604 is opened on the side of the ventilation housing 500 facing the third receiving cavity.

[0297] In some embodiments, cold air cooled by the evaporator 300 enters the ventilation housing 500, forming an air duct for cold air flow. The cold air is output to the housing through the second air outlet 602 and the fourth air outlet 604. Because the second air outlet 602 and the fourth air outlet 604 have different air outlet directions, an air circulation effect is achieved, and multiple air ducts are not required, reducing costs. In some embodiments, the housing 100 is rectangular, and the opening of the housing 100 is located on its upper surface. In some embodiments, the length direction of the housing 100 is horizontal. In some embodiments, the first receiving cavity, the second receiving cavity, and the third receiving cavity are arranged along the length direction of the housing 100. In some embodiments, the length direction of the second air outlet 602 is the same as the height direction of the housing 100. This increases the airflow through the second air outlet 602, and the second air outlet 602 is close to the corresponding inner wall of the housing 100, improving the air circulation effect. In some embodiments, the air outlet direction of the second air outlet 602 is the same as the depth direction of the second air outlet 602. In some embodiments, the air outlet direction of the second air outlet 602 is the same as the length direction of the housing 100. In some embodiments, multiple second air outlets 602 are spaced apart along the height direction of the housing 100. In some embodiments, multiple second air outlets 602 are spaced apart along the length direction of the housing 100. By providing multiple second air outlets 602, the air volume output through the second air outlets 602 is increased, thereby improving the cooling effect. In some embodiments, the length direction of the fourth air outlet 604 is the same as the height direction of the housing 100. The air volume through the fourth air outlet 604 is increased, and the fourth air outlet 604 is close to the corresponding inner wall of the housing 100, thereby improving the air circulation effect. In some embodiments, the air outlet direction of the fourth air outlet 604 is the same as the depth direction of the fourth air outlet 604. In some embodiments, the air outlet direction of the fourth air outlet 604 is the same as the length direction of the housing 100. In some embodiments, multiple fourth air outlets 604 are spaced apart along the height direction of the housing 100. In some embodiments, multiple fourth air outlets 604 are spaced apart along the length of the housing 100. In some embodiments, the air outlet direction of the fourth air outlets 604 is opposite to the air outlet direction of the second air outlets 602. By providing multiple fourth air outlets 604, the air volume output through the fourth air outlets 604 is increased, thereby improving the cooling effect.

[0298] Please refer to Figures 1 and 2 again. Furthermore, this application also provides a freezer, comprising: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opening in the mounting box 400; a compressor 842 disposed in the cabinet 100; an evaporator 300 disposed inside the mounting box 400 and connected to the compressor; and a ventilation shell 500 for ventilation... The ventilation housing 500 is attached to the side wall of the housing 100 and is connected to the mounting box 400. The internal space of the housing 100 is composed of a first receiving cavity, a second receiving cavity, and a third receiving cavity connected in sequence. The second receiving cavity is located above the mounting box 400. The second air outlet 602 is opened on the side of the ventilation housing 500 facing the first receiving cavity. The third air outlet 603 is opened on the side of the ventilation housing 500 facing the second receiving cavity.

[0299] In some embodiments, the cold air cooled by the evaporator 300 enters the ventilation housing 500, and an air duct for the flow of cold air is formed inside the ventilation housing 500. The cold air is output to the room through the second air outlet 602 and the third air outlet 603. Because the air outlets of the second air outlet 602 and the third air outlet 603 have different air outlet directions, the effect of air circulation is achieved, and multiple air ducts are not required, thus reducing costs.

[0300] In some embodiments, the housing 100 is rectangular, and the opening of the housing 100 is formed on the upper surface of the housing 100. In some embodiments, the length direction of the housing 100 is horizontal. In some embodiments, the first receiving cavity, the second receiving cavity, and the third receiving cavity are arranged along the length direction of the housing 100. In some embodiments, the length direction of the second air outlet 602 is the same as the height direction of the housing 100. The airflow through the second air outlet 602 is increased, and the second air outlet 602 is close to the corresponding inner wall of the housing 100, improving the air circulation effect. In some embodiments, the air outlet direction of the second air outlet 602 is the same as the depth direction of the second air outlet 602. In some embodiments, the air outlet direction of the second air outlet 602 is the same as the length direction of the housing 100. In some embodiments, multiple second air outlets 602 are spaced apart along the height direction of the housing 100. In some embodiments, multiple second air outlets 602 are spaced apart along the length direction of the housing 100. By setting multiple second air outlets 602, the airflow output through the second air outlets 602 is increased, thereby improving the cooling effect. In some embodiments, the air outlet direction of the third air outlet 603 is the same as the depth direction of the third air outlet 603. In some embodiments, the length direction of the third air outlet 603 is the same as the length direction of the housing 100. In some embodiments, the air outlet direction of the third air outlet 603 is perpendicular to the length direction of the housing 100. In some embodiments, the air outlet direction of the third air outlet 603 is perpendicular to the side wall of the ventilation housing 500 in which it is located. In some embodiments, the third air outlet 603 is located near the opening of the housing 100. In some embodiments, multiple third air outlets 603 are spaced apart along the length direction of the housing 100. In some embodiments, multiple third air outlets 603 are spaced apart along the height direction of the housing 100. By providing multiple third air outlets 603, the air volume output through the third air outlets 603 is increased, thereby improving the cooling effect. In some embodiments, a step 800 is formed on the inner bottom wall of the housing 100, and the mounting box 400 is attached to the side wall of the step; the third receiving cavity is located above the step. The step 800 is formed to accommodate the compressor below it, facilitating the overall layout of the housing 100. In some embodiments, the step 800 is located at one end of the length direction within the housing 100. The upper surface of the step 800 is directly connected to the vertical side wall at one end of the length direction within the housing 100. In some embodiments, the mounting box 400 is attached to the vertical side plate of the step on the side closest to the step. In some embodiments, a second grille is provided at the second air outlet 602, and the second grille is detachably connected to the second air outlet 602. The second grille can partially block the airflow through the second air outlet 602. By changing the second grille to adjust the airflow through the second air outlet 602, the cooling capacity can be adjusted according to different needs.

[0301] In some embodiments, the second grille has second ventilation holes, and air output through the second air outlet 602 is input into the housing 100 through the second ventilation holes. In some embodiments, the second grille has multiple second ventilation holes, which together achieve the output of cold air. In some embodiments, the number of second ventilation holes in different second grilles may be different. Different second grilles can be replaced according to different needs to achieve different air volumes, thereby changing the cooling effect. In some embodiments, the aperture of the second ventilation holes in different second grilles may be different. Different second grilles can be replaced according to different needs to achieve different air volumes, thereby changing the cooling effect. In some embodiments, the sum of the apertures of all the second ventilation holes on different second grilles may be different. This ensures that the air volumes of different second grilles are different. In some embodiments, the length direction of the second grille is the same as the length direction of the second air outlet 602. In some embodiments, if there are multiple second air outlets 602, the multiple second air outlets 602 are spaced apart along the length direction of the second grille. In some embodiments, if there are multiple second air outlets 602, the multiple second air outlets 602 are spaced apart along the length direction of the second air outlet 602. In some embodiments, the second grille and the second air outlet 602 are connected by snap-fit ​​and slot connection. In some embodiments, the second grille and the second air outlet 602 are connected by threaded connectors. Threaded connectors include, but are not limited to, screws and bolts.

[0302] In some embodiments, a fourth grille is provided at the fourth air outlet 604, and the fourth grille is detachably connected to the fourth air outlet 604. The fourth grille can partially block the airflow passing through the fourth air outlet 604. By changing the fourth grille, the airflow through the fourth air outlet 604 can be adjusted to regulate the cooling capacity according to different needs. In some embodiments, the fourth grille has a fourth ventilation hole, and the air output through the fourth air outlet 604 is input into the housing 100 through a third ventilation hole. In some embodiments, the fourth grille has multiple fourth ventilation holes, which together achieve the output of cold air. In some embodiments, the number of fourth ventilation holes on different fourth grilles can be different. Different fourth grilles can be replaced according to different needs to achieve different airflow and thus change the cooling effect. In some embodiments, the aperture of the fourth ventilation holes on different fourth grilles can be different. Different fourth grilles can be replaced according to different needs to achieve different airflow and thus change the cooling effect. In some embodiments, the sum of the apertures of all the fourth ventilation holes on different fourth grilles can be different. This ensures that the airflow of different fourth grilles is different. In some embodiments, the length direction of the fourth grille is the same as the length direction of the fourth air outlet 604. In some embodiments, if there are multiple fourth air outlets 604, the multiple fourth air outlets 604 are spaced apart along the length direction of the fourth grille. In some embodiments, if there are multiple fourth air outlets 604, the multiple fourth air outlets 604 are spaced apart along the length direction of the fourth air outlet 604. In some embodiments, the fourth grille and the fourth air outlet 604 are connected by snap-fit ​​and slot connection. In some embodiments, the fourth grille and the fourth air outlet 604 are connected by threaded connectors. Threaded connectors include, but are not limited to, screws and bolts.

[0303] In some embodiments, a third grille is provided at the third air outlet 603, and the third grille is detachably connected to the third air outlet 603. The third grille can partially block the airflow passing through the third air outlet 603. By changing the third grille, the airflow through the third air outlet 603 can be adjusted to regulate the cooling capacity according to different needs. In some embodiments, the third grille has a third ventilation hole, and the air output through the third air outlet 603 is input into the housing 100 through a fourth ventilation hole. In some embodiments, the third grille has multiple third ventilation holes, which together achieve the output of cold air. In some embodiments, the number of third ventilation holes on different third grilles can be different. Different third grilles can be replaced according to different needs to achieve different airflow and thus change the cooling effect. In some embodiments, the aperture of the third ventilation holes on different third grilles can be different. Different third grilles can be replaced according to different needs to achieve different airflow and thus change the cooling effect. In some embodiments, the sum of the apertures of all the third ventilation holes on different third grilles can be different. This ensures that the airflow of different third grilles is different. In some embodiments, the length direction of the third grille is the same as the length direction of the third air outlet 603. In some embodiments, if there are multiple third air outlets 603, the multiple third air outlets 603 are spaced apart along the length direction of the third grille. In some embodiments, if there are multiple third air outlets 603, the multiple third air outlets 603 are spaced apart along the length direction of the third air outlets 603. In some embodiments, the third grille and the third air outlet 603 are connected by snap-fit ​​and slot connection. In some embodiments, the third grille and the third air outlet 603 are connected by threaded connectors. Threaded connectors include, but are not limited to, screws and bolts.

[0304] In some embodiments, the capacity of the first receiving cavity is greater than that of the second receiving cavity, and the capacity of the first receiving cavity is greater than that of the third receiving cavity. In some embodiments, the length direction of the evaporator 300 is the same as the length direction of the mounting box 400, and the length direction of the mounting box 400 is perpendicular to the length direction of the housing 100. The evaporator 300 has an output section and an input end, and the return air vent 401 is close to the input end of the evaporator 300. Air enters the mounting box 400 through the return air vent 401, and the air moves along the evaporator 300 under the action of a fan, and the air is cooled when passing through the evaporator 300. This increases the contact area and duration between the air and the evaporator 300. In some embodiments, the ventilation shell 500 is disposed at one end of the mounting box 400 near the output end of the evaporator 300. In some embodiments, the return air vent 401 is disposed at one end of the mounting box 400 away from the ventilation shell 500. This ensures that the airflow output through the second air outlet 602, the fourth air outlet 604, and the third air outlet 603 passes through the first receiving cavity, the second receiving cavity, and the third receiving cavity before returning to the mounting box 400 via the return air outlet 401, thereby increasing the flow path length of the cold air within the box 100 and thus improving the cooling effect.

[0305] In some embodiments, a fan is provided inside the ventilation housing 500. The fan delivers cooled air from the evaporator 300 into the ventilation housing 500, increasing the output speed of the cooled air. In some embodiments, the fan is a centrifugal fan, with its circumferential direction aligned with the length of the evaporator 300. The centrifugal fan can quickly pass the airflow from the evaporator 300 through the ventilation housing 500, increasing the air volume and velocity. In some embodiments, the fan is an axial flow fan, disposed inside the ventilation housing 500, with its axial direction aligned with the length of the evaporator 300. In some embodiments, the housing 100 includes an inner liner 101, and a step is formed by bending the inner liner 101. In some embodiments, a first air outlet is provided on the ventilation housing 500 or the mounting box 400. In some embodiments, the plane containing the upper surface of the mounting box 400 is defined as a first reference plane, which divides a first receiving cavity; a first chamber is located below the first reference plane, and a second chamber is located above the first reference plane; the second air outlet 602 faces the second chamber.

[0306] In some embodiments, the cross-sectional areas of the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 are S2, S3, and S4, respectively; wherein S2 + S3 + S4 = S10; the capacities of the second chamber, the second receiving chamber, and the third receiving chamber are V2, X2, and X3, respectively; wherein V2 + X2 + X3 = V10. In some embodiments, (S2 + S3 / S10) / (V2 + X2 / V10) ≥ 0.88 and (S2 + S3 / S10) / (V2 + X2 / V10) ≤ 1.48. In some embodiments, (S2 + S3 / S10) / (V2 + X2 / V10) = 1.18.

[0307] In some embodiments, (S2+S4 / S10) / (V2+X3 / V10)≥0.78 and (S2+S4 / S10) / (V2+X3 / V10)≤1.38. In some embodiments, (S2+S4 / S10) / (V2+X3 / V10)=1.08.

[0308] In some embodiments, (S3+S4 / S10) / (X2+X3 / V10)≥1.32 and (S3+S4 / S10) / (X2+X3 / V10)≤1.92. In some embodiments, (S3+S4 / S10) / (X2+X3 / V10)=12.62.

[0309] Based on the above data, the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 can be combined in pairs to meet the usage requirements.

[0310] Please refer to Figures 1 and 2 again. In one schematic embodiment of the freezer of this application, the freezer includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opened in the mounting box 400; and a compressor 842 disposed in the cabinet 100. An evaporator 300 is disposed inside the mounting box 400 and is connected to the compressor 842; and a ventilation shell 500 is attached to the side wall of the housing 100 and is connected to the mounting box 400; wherein, the internal space of the housing 100 is composed of a first receiving cavity 103, a second receiving cavity 104 and a third receiving cavity 105 connected in sequence; the second receiving cavity 104 is located above the mounting box 400; a second air outlet 602 is opened on the side of the ventilation shell 500 facing the first receiving cavity 103; a third air outlet 603 is opened on the side of the ventilation shell 500 facing the second receiving cavity 104; and a fourth air outlet 604 is opened on the side of the ventilation shell 500 facing the third receiving cavity 105.

[0311] In some embodiments, air is discharged through the second air outlet 602, the third air outlet 603, and the fourth air outlet 604, all of which are connected to the interior of the ventilation shell 500. Only one ventilation shell 500 is needed to achieve the air discharge from three outlets, which achieves the effect of enveloping air and circulating air while saving costs and improving the cooling capacity of the freezer.

[0312] Please refer to Figures 1 and 2 again. In addition, this application also provides a freezer, which includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent 401 opened in the mounting box 400; a compressor 842 disposed in the cabinet 100; an evaporator 300 disposed inside the mounting box 400 and connected to the compressor; and a ventilation shell 500 attached to the side wall of the cabinet 100 and communicating with the mounting box 400; wherein the internal space of the cabinet 100 is composed of a first receiving cavity 103, a second receiving cavity 104 and a third receiving cavity 105 connected in sequence. The second receiving cavity 104 is located above the mounting box 400; the second air outlet 602 is opened in the ventilation shell 500, and the air outlet direction of the second air outlet 602 is towards the first receiving cavity 103; the third air outlet 603 is opened in the ventilation shell 500, and the air outlet direction of the third air outlet 603 is towards the second receiving cavity 104; the fourth air outlet 604 is opened in the ventilation shell 500, and the air outlet direction of the fourth air outlet 604 is towards the third receiving cavity 105.

[0313] In some embodiments, air is discharged through the second air outlet 602, the third air outlet 603, and the fourth air outlet 604, all of which are connected to the interior of the ventilation shell 500. Only one ventilation shell 500 is needed to achieve the air discharge from three outlets, which achieves the effect of enveloping air and circulating air while saving costs and improving the cooling capacity of the freezer.

[0314] In some embodiments, the housing 100 is rectangular, and the opening of the housing 100 is located on the upper surface of the housing 100. In some embodiments, the length direction of the housing 100 is horizontal. In some embodiments, the first receiving cavity 103, the second receiving cavity 104, and the third receiving cavity 105 are arranged along the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the plane containing the upper surface of the mounting box 400 is defined as the first reference plane, the first reference plane separates the first receiving cavity 103, the first chamber 1031 is below the first reference plane, and the second chamber 1032 is above the first reference plane; the second air outlet 602 faces the second chamber 1032. In some embodiments, the cross-sectional areas of the second air outlet 602, the third air outlet 603, and the fourth air outlet 604 are S2, S3, and S4, respectively. Wherein, S2 + S3 + S4 = S10. The capacities of the first chamber 1031, the second chamber 1032, the second receiving chamber 104, and the third receiving chamber 105 are V1, V2, X2, and X3, respectively; wherein, V1+V2+X2+X3=V20.

[0315] In some embodiments, (S2 / S10) / (V2 / V20) ≥ 0.65 and (S2 / S10) / (V2 / V20) ≤ 1.25 are satisfied. This limits the air outlet cross-sectional area of ​​the second air outlet 602, resulting in good air circulation and enveloping airflow effects. In some embodiments, when (S2 / S10) / (V2 / V20) = 0.65, the second air outlet 602 can meet a lower airflow volume. This ensures that an enveloping airflow effect can be achieved while maintaining a lower airflow volume, and also guarantees the cooling effect. In some embodiments, when (S2 / S10) / (V2 / V20) = 1.25, the airflow volume through the second air outlet 602 is relatively large. This achieves an enveloping airflow effect while maintaining a good cooling effect. In some embodiments, (S2 / S10) / (V2 / V20) = 0.95 are satisfied. This limits the air outlet cross-sectional area of ​​the second air outlet 602, resulting in good air circulation and enveloping airflow effects.

[0316] In some embodiments, (S3 / S10) / (X2 / V20) ≥ 1.53 and (S3 / S10) / (X2 / V20) ≤ 2.13. This limits the air outlet cross-sectional area of ​​the third air outlet 603, resulting in good air circulation and enveloping airflow effects. In some embodiments, when (S3 / S10) / (X2 / V20) = 1.53, the third air outlet 603 can meet a relatively low airflow requirement. This ensures that an enveloping airflow effect can be achieved while maintaining a low airflow, and also guarantees the cooling effect. In some embodiments, when (S3 / S10) / (X2 / V20) = 2.13, the airflow through the third air outlet 603 is relatively high. This achieves an enveloping airflow effect while maintaining a good cooling effect. In some embodiments, (S3 / S10) / (X2 / V20) = 1.83. This limits the air outlet cross-sectional area of ​​the third air outlet 603, resulting in good air circulation and enveloping airflow effects.

[0317] In some embodiments, (S4 / S10) / (X3 / V20) ≥ 1.13 and (S4 / S10) / (X3 / V20) ≤ 1.73 are satisfied. This limits the air outlet cross-sectional area of ​​the fourth air outlet 604, providing good air circulation and enveloping airflow effects. In some embodiments, when (S4 / S10) / (X3 / V20) = 1.13, the fourth air outlet 604 can meet a lower airflow volume. This ensures that an enveloping airflow effect can be achieved while maintaining a lower airflow volume, and also guarantees cooling performance. In some embodiments, when (S4 / S10) / (X3 / V20) = 1.73, the airflow volume through the fourth air outlet 604 is relatively large. This achieves an enveloping airflow effect while providing good cooling performance. In some embodiments, (S4 / S10) / (X3 / V20) = 1.43 are satisfied. This limits the air outlet cross-sectional area of ​​the fourth air outlet 604, providing good air circulation and enveloping airflow effects.

[0318] In some embodiments, a fan is provided inside the ventilation housing 500. The fan delivers cooled air, after being cooled by the evaporator, into the ventilation housing 500 and outputs it through the second air outlet 602, the third air outlet 603, and the fourth air outlet 604, thereby increasing the output speed of the cooled air. In some embodiments, the housing 100 may not have the first chamber 1031; that is, the interior of the housing 100 consists of a second chamber 1032, a second receiving cavity 104, and a third receiving cavity 105.

[0319] In some embodiments, V2 + X2 + X3 = V10. (S2 / S10) / (V2 / V10) ≥ 0.47 and (S2 / S10) / (V2 / V10) ≤ 1.07 is satisfied. This limits the air outlet cross-sectional area of ​​the second air outlet 602, providing good air circulation and enveloping airflow effects. In some embodiments, when (S2 / S10) / (V2 / V10) = 0.47, the second air outlet 602 can meet a relatively low airflow requirement. This ensures that an enveloping airflow effect is achieved while maintaining cooling performance, even with a small airflow. In some embodiments, when (S2 / S10) / (V2 / V10) = 1.07, the airflow through the second air outlet 602 is relatively large. This achieves both an enveloping airflow effect and good cooling performance. In some embodiments, (S2 / S10) / (V2 / V10) = 0.77 is satisfied. The air outlet cross-sectional area of ​​the second air outlet 602 is limited, and under this size condition, the air circulation effect and the surrounding air effect are better.

[0320] In some embodiments, (S3 / S10) / (X2 / V10) ≥ 1.18 and (S3 / S10) / (X2 / V10) ≤ 1.78 are satisfied. This limits the air outlet cross-sectional area of ​​the third air outlet 603, resulting in good air circulation and enveloping airflow effects. In some embodiments, when (S3 / S10) / (X2 / V10) = 1.18, the third air outlet 603 can meet a lower airflow volume. This ensures that an enveloping airflow effect can be achieved while maintaining a lower airflow volume, and also guarantees the cooling effect. In some embodiments, when (S3 / S10) / (X2 / V10) = 1.78, the airflow volume through the third air outlet 603 is relatively large. This achieves an enveloping airflow effect while maintaining a good cooling effect. In some embodiments, (S3 / S10) / (X2 / V10) = 1.48 are satisfied. This limits the air outlet cross-sectional area of ​​the third air outlet 603, resulting in good air circulation and enveloping airflow effects.

[0321] In some embodiments, (S4 / S10) / (X3 / V10) ≥ 0.86 and (S4 / S10) / (X3 / V10) ≤ 1.46. This limits the air outlet cross-sectional area of ​​the fourth air outlet 604, providing good air circulation and enveloping airflow effects. In some embodiments, when (S4 / S10) / (X3 / V10) = 0.86, the fourth air outlet 604 can meet a lower airflow volume. This ensures that an enveloping airflow effect can be achieved while maintaining a lower airflow volume, and also guarantees the cooling effect. In some embodiments, when (S4 / S10) / (X3 / V10) = 1.46, the airflow volume through the fourth air outlet 604 is relatively large. This achieves an enveloping airflow effect while providing good cooling. In some embodiments, (S4 / S10) / (X3 / V10) = 1.16. This limits the air outlet cross-sectional area of ​​the fourth air outlet 604, providing good air circulation and enveloping airflow effects.

[0322] Referring again to Figures 1 and 2, in a schematic embodiment of the freezer of this application, the freezer includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent in the mounting box 400; a compressor 842 disposed in the cabinet 100; an evaporator 300 disposed inside the mounting box 400 and connected to the compressor; a ventilation shell 500 fitted to the inner side wall of the cabinet 100 and communicating with the mounting box 400; wherein, the cabinet 100 has multiple receiving cavities; the multiple receiving cavities include a first receiving cavity, a second receiving cavity, and a third receiving cavity, the first receiving cavity and the third receiving cavity being located on both sides of the mounting box 400; and at least one air outlet.

[0323] In some embodiments, the air outlet is a third air outlet, which is located on the vertical side wall of the ventilation housing 500. The third air outlet is located above the mounting box 400. Referring to FIG34, the grille includes a third grille 6014. Referring to FIGS. 35 and 36, the third grille 6014 includes a first air guide plate 60141, a second air guide plate 60142, and a third air guide plate 60143 for guiding airflow to the first receiving cavity, the area above the mounting box 400, and the third receiving cavity, respectively. Through the above scheme, referring to FIGS. 37 and 38, the airflow output through the third air outlet is guided and blown towards the first receiving cavity, the second receiving cavity, and the third receiving cavity by the first air guide plate 60141, the second air guide plate 60142, and the third air guide plate 60143 on the third grille 6014, thereby enabling the airflow output through the third air outlet to quickly fill the interior of the housing 100, improving the cooling effect inside the housing 100.

[0324] In some embodiments, referring to Figures 39 and 40, the first air guide grille 60141, the second air guide grille 60142, and the third air guide grille 60143 are designed with adjustable angles. Users can manually or electrically adjust the angle of each air guide grille as needed to precisely control the airflow direction. This design allows for more flexible airflow control, adjusting the distribution of cold air for different seasons, food types, or usage scenarios, further improving the cooling effect inside the cabinet 100. In some embodiments, referring to Figures 41 and 42, the first air guide grille 60141, the second air guide grille 60142, and the third air guide grille 60143 are designed as a linkage mechanism, so that when the user adjusts one air guide grille, the other two air guide grilles adjust synchronously to ensure a uniform distribution of airflow among the three accommodating cavities. This linkage design simplifies user operation and provides a more uniform airflow distribution. The linkage design simplifies operation and ensures uniform airflow distribution. In some embodiments, temperature or humidity sensors are integrated into each of the first air guide plate 60141, the second air guide plate 60142, and the third air guide plate 60143, thereby enabling the air guide plate angle or opening state to be automatically adjusted according to the temperature or humidity status of different accommodating cavities inside the housing 100. For example, when the temperature of a certain accommodating cavity is too high, the air guide plate automatically directs more cool air to that cavity until the temperature returns to normal. This design enables intelligent temperature regulation, ensuring temperature consistency across all accommodating cavities.

[0325] In some embodiments, the housing 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the mounting box 400 has a return air vent. In some embodiments, the ventilation housing 500 may also have a first air outlet to ensure airflow. In some embodiments, a first grille is provided at the first air outlet, and the first grille is detachably connected to the first air outlet. The first grille can partially block the airflow through the first air outlet, and by changing the first grille, the airflow through the first air outlet can be adjusted to adjust the cooling capacity according to different needs. In some embodiments, the ventilation housing 500 may also have a second air outlet to ensure airflow. In some embodiments, a second grille is provided at the second air outlet, and the second grille is detachably connected to the second air outlet. The second grille can partially block the airflow through the second air outlet. By changing the second grille, the airflow through the second air outlet can be adjusted to adjust the cooling capacity according to different needs.

[0326] Please refer to Figures 1 and 2 again. In addition, this application also provides a freezer, which includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent in the mounting box 400; a compressor disposed in the cabinet 100; an evaporator disposed inside the mounting box 400 and connected to the compressor; and a ventilation shell 500 fitted to the inner side wall of the cabinet 100 and communicating with the mounting box 400; wherein the interior of the cabinet 100 has multiple receiving cavities.

[0327] In some embodiments, the internal space of the housing 100 is sequentially divided into a first receiving cavity, a second receiving cavity, and a third receiving cavity along its length. A third air outlet is formed on the vertical side wall of the ventilation housing 500. The grille includes a third grille 6014. Referring to FIG43, the third grille 6014 includes a first air guide plate 60141, a second air guide plate 60142, and a third air guide plate 60143 for guiding airflow to the first receiving cavity, the second receiving cavity, and the third receiving cavity, respectively.

[0328] Through the above scheme, the airflow output through the third air outlet is guided and blown into the first receiving cavity, the second receiving cavity and the third receiving cavity by the first air guide plate 60141, the second air guide plate 60142 and the third air guide plate 60143 on the third grille 6014. In this way, the airflow output through the third air outlet can quickly fill the interior of the box 100, thereby improving the cooling effect inside the box 100.

[0329] In some embodiments, a return air vent is provided on the mounting box 400. In some embodiments, a first air outlet may also be provided on the ventilation housing 500 to ensure airflow. In some embodiments, a first grille is provided at the first air outlet, and the first grille is detachably connected to the first air outlet. The first grille can partially block the airflow passing through the first air outlet. By changing the first grille, the airflow passing through the first air outlet can be adjusted to adjust the cooling capacity according to different needs. In some embodiments, a second air outlet may also be provided on the ventilation housing 500 to ensure airflow. In some embodiments, a second grille is provided at the second air outlet, and the second grille is detachably connected to the second air outlet. The second grille can partially block the airflow passing through the second air outlet. By changing the second grille, the airflow passing through the second air outlet can be adjusted to adjust the cooling capacity according to different needs. In some embodiments, a third air outlet is provided on the side of the ventilation housing 500 facing the mounting box 400. In some embodiments, the third grille 6014 is integrally formed at the third air outlet to improve the structural strength and prevent the third grille 6014 from falling off. In some embodiments, the third grille 6014 is detachably disposed at the third air outlet. The third grille 6014 can be replaced when it is damaged or when the airflow into the first, second, and third receiving cavities needs adjustment. In some embodiments, the third grille 6014 is disposed on the side of the ventilation housing 500 facing upwards towards the mounting box 400. In some embodiments, the length direction of the third air outlet is along the length direction of the housing 100. In some embodiments, the length direction of the third grille 6014 is along the length direction of the housing 100. This ensures sufficient length direction space for the first air guide plate 60141, the second air guide plate 60142, and the third air guide plate 60143. In some embodiments, the first air guide plate 60141 is inclined from the side away from the ventilation housing 500 towards the first receiving cavity. When airflow contacts the first air guide plate 60141, the airflow flows along the surface of the contacted first air guide plate 60141, thereby directing the airflow out along the inclined direction of the first air guide plate 60141, thus guiding the airflow and allowing some of the airflow to be blown into the first receiving cavity. In some embodiments, multiple first air guide plates 60141 are spaced apart along the length of the third grille 6014. This improves the guiding effect on the airflow. In some embodiments, the spacing between any two adjacent first air guide plates 60141 is the same. In some embodiments, the second air guide plate 60142 is perpendicular to the side wall of the ventilation housing 500 where the third grille 6014 is located. When airflow contacts the second air guide plate 60142, the airflow flows along the surface of the contacted second air guide plate 60142, thereby directing the airflow out along the inclined direction of the second air guide plate 60142, thus guiding the airflow and allowing some of the airflow to be blown into the second receiving cavity.In some embodiments, multiple second air guide grilles 60142 are spaced apart along the length of the third grille 6014 to improve the airflow guiding effect. In some embodiments, the spacing between any two adjacent second air guide grilles 60142 is the same. In some embodiments, the third air guide grille 60143 is inclined from the side away from the ventilation housing 500 toward the third receiving cavity. When airflow contacts the third air guide grille 60143, the airflow flows along the surface of the contacted third air guide grille 60143, thereby causing the airflow to be output along the inclined direction of the third air guide grille 60143, achieving airflow guidance and allowing part of the airflow to be blown into the third receiving cavity. In some embodiments, multiple third air guide grilles 60143 are spaced apart along the length of the third grille 6014 to improve the airflow guiding effect. In some embodiments, the spacing between any two adjacent third air guide grilles 60143 is the same. In some embodiments, in the third grille 6014, the section where the first air guide grille 60141 is located is the first air guiding section. In some embodiments, in the third grille 6014, the section containing the second air guide plate 60142 is the second air guide section. In some embodiments, in the third grille 6014, the section containing the third air guide plate 60143 is the third air guide section.

[0330] In some embodiments, if the volume of the first receiving cavity is greater than the volume of the second receiving cavity, then the length of the first air guide section is greater than the length of the second air guide section. In some embodiments, if the volume of the first receiving cavity is greater than the volume of the third receiving cavity, then the length of the first air guide section is greater than the length of the third air guide section. In some embodiments, if the volume of the second receiving cavity is greater than the volume of the first receiving cavity, then the length of the second air guide section is greater than the length of the first air guide section. In some embodiments, if the volume of the second receiving cavity is greater than the volume of the third receiving cavity, then the length of the second air guide section is greater than the length of the third air guide section. In some embodiments, if the volume of the third receiving cavity is greater than the volume of the second receiving cavity, then the length of the third air guide section is greater than the length of the first air guide section. Through the above scheme, air guide sections of different lengths are selected according to the volumes of the first, second, and third receiving cavities, thereby guiding the airflow of corresponding flow rates to the corresponding volume receiving cavities to achieve uniform cooling of the interior of the housing 100. In some embodiments, a step is formed on the inner bottom wall of the housing 100, and the mounting box 400 is fitted against the side wall of the step. The step allows the compressor to be accommodated below it, facilitating the overall layout of the housing 100. In some embodiments, a reference surface is defined, with the vertical side of the mounting box 400 away from the step located on the reference surface. The side of the housing 100 located on the reference surface away from the step is a first receiving cavity. In some embodiments, the space above the mounting box 400 within the housing 100 is a second receiving cavity. In some embodiments, the space above the step within the housing 100 is a third receiving cavity. In some embodiments, the first air guide plate 60141 and the third grille 6014 are integrally formed, thereby improving structural strength. In some embodiments, the first air guide plate 60141 can be detachably connected to the third grille 6014 and can be replaced as needed. In some embodiments, the first air guide plate 60141 can be rotated on the third grille 6014 to adjust the airflow direction. In some embodiments, the second air guide plate 60142 and the third grille 6014 are integrally formed. This improves the structural strength. In some embodiments, the second air guide plate 60142 can be detachably connected to the third grille 6014 and can be replaced as needed. In some embodiments, the second air guide plate 60142 can be tilted on the third grille 6014 to adjust the airflow direction. In some embodiments, the third air guide plate 60143 is integrally formed with the third grille 6014. This improves the structural strength. In some embodiments, the third air guide plate 60143 can be detachably connected to the third grille 6014 and can be replaced as needed. In some embodiments, the third air guide plate 60143 can be tilted on the third grille 6014 to adjust the airflow direction.In some embodiments, a third air outlet and a third grille 6014 are disposed at one end of the ventilation housing 500 near the opening of the housing 100. In some embodiments, the airflow guided by the first air guide plate 60141 is inclined from top to bottom toward the first receiving cavity. In some embodiments, the airflow guided by the second air guide plate 60142 is inclined from top to bottom toward the second receiving cavity. In some embodiments, the airflow guided by the third air guide plate 60143 is inclined from top to bottom toward the third receiving cavity. In some embodiments, the first receiving cavity includes a first chamber and a second chamber. A plane containing the upper surface of the mounting box is defined as a reference plane, which separates the first receiving cavity, and the first chamber is located below the reference plane. In some embodiments, a first air guide section is used to discharge air to the second chamber. In some embodiments, the area of ​​the first air guide section is not less than 30% of the total area of ​​the third air outlet. In some embodiments, the area of ​​the second air guide section is 10% to 30% of the total area of ​​the third air outlet. In some embodiments, the area of ​​the third air guide section is not greater than 30% of the total area of ​​the third air outlet because the volume of the second chamber is larger than that of the second and third receiving cavities. This ensures that the airflow entering the second chamber, the second containment chamber, and the third containment chamber can guarantee the cooling effect while achieving the effect of enveloping airflow.

[0331] Referring to Figure 44, in an illustrative embodiment of the freezer of this application, the freezer includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent in the mounting box 400 and an air outlet on one side of the mounting box 400; a compressor disposed in the cabinet 100; an evaporator disposed inside the mounting box 400 and connected to the compressor; and an air outlet component 998 spaced apart from the air outlet side; wherein, referring to Figures 45 and 496... 46. ​​The air outlet 996 of the freezer is located on the air outlet side; the air outlet component 998 has a ventilation hole in the middle for ventilation; the ventilation hole is set correspondingly to the air outlet 996 of the freezer; referring to Figures 47 and 48, the cold air cooled by the evaporator is output through the air outlet 996 and the ventilation hole. The airflow inside the freezer enters between the air outlet component 998 and the air outlet side under the drive of the cold air output through the air outlet 996, and merges with the cold air output through the air outlet 996 before being output through the ventilation hole.

[0332] In the above embodiment, cold air, cooled by the evaporator, is output through the freezer's air outlet 996 and vents. The airflow inside the freezer is driven by the cold air output from the air outlet 996, entering the space between the air outlet component 998 and the air outlet side, where it merges with the cold air output from the air outlet 996 before being output through the vents. The air outlet component 998 is spaced apart from the inner wall of the cabinet 100, utilizing Bernoulli's principle to enhance airflow and improve airflow efficiency. This design ensures efficient airflow circulation inside the freezer, contributing to even cooling of food and improving the freezer's refrigeration effect.

[0333] In some embodiments, the housing 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the air outlet side is the vertical side wall of the mounting box 400. In some embodiments, the air outlet side is the top wall of the mounting box 400. In some embodiments, the freezer air outlet 996 is directly connected to the space inside the mounting box 400, so that air cooled by the evaporator is output through the freezer air outlet 996.

[0334] Please refer to Figure 44 again. Furthermore, this application also provides a freezer, comprising: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent located in the mounting box 400; a compressor disposed in the cabinet 100; an evaporator disposed inside the mounting box 400 and connected to the compressor; and a ventilation shell 500 fitted to the side wall of the cabinet 100, communicating with the mounting box 400, with one side of the ventilation shell 500 serving as the air outlet. Air outlet 996 is located on the air outlet side; air outlet component 998 is spaced apart from the air outlet side, and a ventilation hole for ventilation is opened in the middle of the air outlet component 998; wherein, the ventilation hole is correspondingly set to the air outlet 996 of the freezer; the cold air cooled by the evaporator is output through the air outlet 996 of the freezer and the ventilation hole, and the airflow inside the freezer enters between the air outlet component 998 and the air outlet side under the drive of the cold air output through the air outlet 996 of the freezer, and merges with the cold air output through the air outlet 996 of the freezer before being output through the ventilation hole.

[0335] In the above embodiment, cold air, cooled by the evaporator, is output through the freezer's air outlet 996 and vents. The airflow inside the freezer is driven by the cold air output from the air outlet 996, entering the space between the air outlet component 998 and the air outlet side, where it merges with the cold air output from the air outlet 996 before being output through the vents. The air outlet component 998 is spaced apart from the inner wall of the cabinet 100, utilizing Bernoulli's principle to enhance airflow and improve airflow efficiency. This design ensures efficient airflow circulation inside the freezer, contributing to even cooling of food and improving the freezer's refrigeration effect.

[0336] In some embodiments, the air outlet 998 features a multi-layered structure, with each layer having independent ventilation holes and air outlet channels. The angle or direction of the ventilation holes in each layer can be adjusted to achieve a more uniform airflow distribution. This design allows cold air from different layers to be delivered to different heights within the freezer, ensuring a more uniform temperature throughout the entire freezer and making it suitable for storing different types of food. In some embodiments, the air outlet 998 is designed as a layered, independently controllable structure, where each layer can be independently adjusted according to the temperature requirements of different areas within the freezer, and even different layers can operate at different times. For example, when a lower temperature is needed in the upper layer, the airflow in the upper layer can be increased, while only a lower airflow is maintained in the lower layer, thereby saving energy while ensuring better food preservation conditions. The layered, independently controllable structure provides a more uniform and layered airflow distribution, suitable for storing different types of food. It saves energy and achieves customized cooling through layered control. In some embodiments, the ventilation holes are designed as a variable aperture structure, allowing the opening of the ventilation holes to be dynamically adjusted according to the temperature and humidity inside the freezer. For example, when rapid cooling is needed, the ventilation holes can automatically expand to increase airflow, while when maintaining temperature, the ventilation holes can shrink to reduce cold air loss. This design enables intelligent control through feedback from temperature and humidity sensors, further optimizing the freezer's energy efficiency and cooling performance. In some embodiments, an air purification device, such as one with an activated carbon filter, UV-C lamp, or negative ion generator, is integrated into the air outlet 998. The cold air is purified before being output through the ventilation holes, removing odors, bacteria, and other microorganisms. This design not only improves the air quality inside the freezer but also helps extend the shelf life of food.

[0337] In some embodiments, the housing 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the freezer air outlet 996 is directly connected to the space inside the ventilation shell 500, so that the air cooled by the evaporator inside the mounting box 400 enters the ventilation shell 500 and is then output through the freezer air outlet 996. Referring to Figure 49, a connecting rod 999 is provided between the air outlet 998 and the mounting side, with one end of the connecting rod 999 connected to the air outlet 998 and the other end connected to the mounting side. The connecting rod 999 enhances the stability of the air outlet 998, ensures uniform airflow distribution in the ventilation holes, and improves cooling efficiency. In some embodiments, the connecting rod 999 can be designed as an adjustable length and angle connecting rod, so that the user can adjust the position and angle of the air outlet 998 according to actual needs, thereby precisely controlling the airflow distribution direction. This allows for flexible adjustment of the cold air flow direction according to different refrigeration needs, improving the cooling effect. In some embodiments, the air outlet side is the vertical side wall of the ventilation shell 500. In some embodiments, the ventilation shell 500 can be the cabinet 100 itself, that is, the air duct communicating with the mounting box 400 is set inside the cabinet 100, and the air outlet side is the inner wall of the cabinet 100. The freezer air outlet 996 is directly opened on the inner wall of the cabinet 100 to communicate with the air duct. In some embodiments, the air duct is designed as a layered structure, with each layer corresponding to a different receiving cavity, and the air outlets of each layer of the air duct can be respectively set at different heights of the cabinet 100. This allows the cold air to be distributed more evenly to different areas of the freezer, further improving the refrigeration effect. In some embodiments, referring to Figure 50, a multi-functional air outlet structure, such as an adjustable louver or a rotating air guide plate, is designed at the freezer air outlet 996. Users can adjust the opening and direction of the freezer's air outlet as needed, so that the cold air can be blown more precisely to the area that needs cooling. In some embodiments, there are multiple freezer air outlets 996, and any two adjacent freezer air outlets 996 are spaced apart.

[0338] In some embodiments, there are multiple air outlet components 998, and the number of air outlet components 998 does not exceed the number of refrigerator air outlets 996. Referring to Figures 51 and 52, the air outlet components 998 are arranged in a one-to-one correspondence with the refrigerator air outlets 996. By setting multiple refrigerator air outlets 996 and air outlet components 998, the air volume inside the cabinet 100 is increased. In some embodiments, there can be multiple air outlet sides. In some embodiments, when the ventilation shell 500 is set separately, the air outlet sides are different side walls of the ventilation shell 500. In some embodiments, when the ventilation shell 500 is the cabinet 100 itself, the air outlet sides are different inner side walls inside the cabinet 100. In some embodiments, when there are multiple refrigerator air outlets 996, the refrigerator air outlets 996 can be set on different air outlet sides so that the orientation of each refrigerator air outlet 996 is different, so as to achieve the effect of circulating air and surrounding air, and improve the cooling effect inside the cabinet 100. In some embodiments, the air outlet component 998 is a plastic part, which has a low cost. In some embodiments, the air outlet 998, connecting rod 999, and air outlet side are integrally formed. This reduces manufacturing complexity and improves overall stability and durability. Referring to FIG53, multiple connecting rods 999 are arranged at circumferential intervals along the air outlet 998. This design distributes the support force more evenly, ensuring the stability and ventilation efficiency of the air outlet 998. It also improves the connection strength between the air outlet 998 and the air outlet side.

[0339] In some embodiments, the air outlet component 998, the connecting rod 999, and the air outlet side are made of the same material to facilitate manufacturing and allow for integral molding. In some embodiments, the connecting rod 999 is integrally molded with the air outlet component 998 and is separately connected to the air outlet side via the connecting rod 999. In some embodiments, the connecting rod 999 is integrally molded with the air outlet side and is separately connected to the air outlet component 998 via the connecting rod 999. In some embodiments, the connecting rod 999, the air outlet component 998, and the air outlet side are separately provided, and the connecting rod 999 is connected to both the air outlet side and the air outlet component 998. In some embodiments, the connection method between the connecting rod 999 and the air outlet side is welding. In some embodiments, the connection method between the connecting rod 999 and the air outlet side is adhesive bonding. In some embodiments, the connection method between the connecting rod 999 and the air outlet side is bolt fixing. This method allows the connecting rod 999 to be disassembled when necessary, facilitating the maintenance and replacement of parts in the freezer. In some embodiments, the connection method between the connecting rod 999 and the air outlet side is snap-fit ​​connection. The snap-fit ​​connection provides convenience for quick installation and disassembly while ensuring the stability and durability of the connection. In some embodiments, the connection between the connecting rod 999 and the air outlet side adopts a mortise and tenon structure. Mortise and tenon structures are widely used in traditional woodworking, providing a robust and aesthetically pleasing connection method, and can be applied even in metal or plastic components to improve the overall structural stability. In some embodiments, the connection between the connecting rod 999 and the air outlet side is a groove connection. By designing a groove on the air outlet side and providing a protrusion at a corresponding position on the connecting rod 999, the connecting rod 999 can slide along the groove and lock, ensuring the stability of the connection and facilitating assembly and disassembly. In some embodiments, the connection between the connecting rod 999 and the air outlet component 998 is welded. In some embodiments, the connection between the connecting rod 999 and the air outlet component 998 is bonded. In some embodiments, the connection between the connecting rod 999 and the air outlet component 998 is bolted. This method allows the connecting rod 999 to be disassembled when necessary, facilitating the maintenance and replacement of parts in the refrigerator. In some embodiments, the connection between the connecting rod 999 and the air outlet component 998 is a snap-fit ​​connection. The snap-fit ​​connection provides convenient quick installation and disassembly while ensuring the stability and durability of the connection. In some embodiments, the connection between the connecting rod 999 and the air outlet 998 adopts a mortise and tenon structure. Mortise and tenon structures are widely used in traditional woodworking, providing a robust and aesthetically pleasing connection method, and can be applied even in metal or plastic components to improve the overall structural stability. In some embodiments, the freezer air outlet 996 has a flange 997 along its edge, the extension direction of the flange 997 being the same as the direction of the airflow output through the freezer air outlet 996. The design of the flange 997 changes the aperture and cross-sectional area, optimizing the output direction and speed of the airflow, and improving the cooling efficiency of the freezer. It guides the airflow to flow more smoothly, reducing turbulence and energy loss of the airflow at the edge of the freezer air outlet 996.The 997 flange can act as an airflow guiding structure, helping the airflow maintain a certain directionality, enhancing the airflow dynamics inside the freezer, thereby improving refrigeration efficiency and cooling uniformity.

[0340] In some embodiments, the flange 997 is directly stamped from the freezer outlet 996. In some embodiments, the flange 997 is made of the same material as the outlet side to facilitate integral molding, maintain its shape, and withstand continuous airflow impact, ensuring the consistency and durability of the overall structure. In some embodiments, the flange 997 is curved, and its length and width are designed according to the size of the freezer outlet 996 and the required aerodynamic characteristics. The shape of the flange 997 may be straight, curved, or any specific geometry, designed to maximize airflow guidance. In some embodiments, the flange 997 is detachably connected to the freezer outlet 996. Different shapes of flanges 997 can be replaced according to different needs to change the outlet angle and speed of the airflow, making adaptive adjustments for different freezer requirements. In some embodiments, the flange 997 is connected to the freezer outlet 996 by welding. In some embodiments, the flange 997 is connected to the freezer outlet 996 by adhesive bonding. In some embodiments, the aperture of the freezer air outlet 996 gradually narrows along the direction of the airflow output through the freezer air outlet 996. This gradual aperture design helps to increase airflow velocity, utilizes the nozzle effect to enhance airflow power, thereby enhancing airflow circulation within the freezer, improving cooling efficiency and the cooling speed of food. It is worth noting that the aperture of the freezer air outlet 996 includes the space within the flange 997. In some embodiments, the internal shape of the freezer air outlet 996 is nozzle-shaped. In some embodiments, the internal shape of the freezer air outlet 996 is funnel-shaped.

[0341] In some embodiments, the side of the freezer air outlet 996 furthest from the interior of the cabinet 100 is wider, gradually narrowing towards the interior. This tapering shape can be linear, i.e., gradually decreasing at a constant angle; or it can be non-linear, such as a curved shape, designed according to specific airflow dynamics principles. In some embodiments, the tapering freezer air outlet 996 is implemented as an embedded type, i.e., the internal structure of the freezer air outlet 996 gradually narrows. In some embodiments, the tapering freezer air outlet 996 is implemented as a convex type, i.e., the external shape of the freezer air outlet 996 protrudes, forming a gradually narrowing channel. In some embodiments, the tapering freezer air outlet 996 is implemented as a single integral component, i.e., the freezer air outlet 996 gradually narrows from one end to the other. It is worth noting that the inner wall of the flange 997 is smoothly transitioned to the inner wall of the freezer air outlet 996 to avoid affecting airflow output. In some embodiments, the diameter of the vent gradually decreases along the direction of the airflow output through the freezer outlet 996. Utilizing the nozzle effect, increasing the airflow velocity by decreasing the vent diameter helps improve airflow dynamics and cooling efficiency within the freezer, while also promoting uniform airflow distribution. In some embodiments, the internal shape of the vent is nozzle-shaped. In some embodiments, the internal shape of the vent is funnel-shaped. In some embodiments, the vent is wider on the side facing the corresponding freezer outlet 996 and gradually narrows towards the side away from the corresponding freezer outlet 996. This tapering shape can be linear, i.e., gradually decreasing at a constant angle; or it can be non-linear, such as a curved shape, designed according to specific aerodynamic principles. In some embodiments, the tapering vent is implemented as an embedded type, i.e., the internal structure of the vent gradually narrows. In some embodiments, the tapering vent is implemented as a convex type, i.e., the external shape of the vent protrudes, forming a gradually narrowing channel. In some embodiments, the tapering vent is implemented as a single integral component, i.e., the vent gradually narrows from one end to the other. In some embodiments, the cross-sectional area of ​​the freezer air outlet 996 is smaller than that of the ventilation hole. This helps to create a higher airflow velocity at the freezer air outlet 996, promoting airflow circulation within the freezer through differential speed, thereby enhancing the cooling effect and improving temperature uniformity. Furthermore, because the air inside the freezer passes through the ventilation hole along with the airflow output through the freezer air outlet 996 according to Bernoulli's principle, the airflow through the ventilation hole is necessarily greater than the airflow through the freezer air outlet 996; therefore, the space of the ventilation hole is larger than the diameter of the freezer air outlet 996. In some embodiments, the cross-sectional shape of the freezer air outlet 996 is the same as that of the ventilation hole. This helps to ensure stable airflow transmission and distribution, avoiding airflow turbulence caused by changes in cross-sectional shape, thereby optimizing the airflow path inside the freezer and improving cooling efficiency and uniformity.

[0342] Referring to Figures 54 and 55, in some embodiments, the freezer includes: a cabinet 100 with an open top and an air outlet inside the cabinet 100; a mounting box 400 located on the inner bottom wall of the cabinet 100, with a first return air inlet 40111 located at one end of the top of the mounting box 400, and the upper surface of the mounting box 400 inclined downwards towards the side away from the first return air inlet 40111; a compressor located in the cabinet 100; an evaporator located inside the mounting box 400 and connected to the compressor; and a fan located inside the cabinet 100. Under the action of the fan, air from inside the cabinet 100 enters the mounting box 400 through the first return air inlet 40111, and the air entering the mounting box 400 is heated by the evaporator before being output through the air outlet.

[0343] In some embodiments, when an item is placed above the mounting box 400, it will slide on the upper surface of the mounting box 400 away from the first return air vent 40111 under the influence of gravity, thus preventing the item from obstructing the first return air vent 40111 and affecting its return air effect. This ensures the return air effect and improves the cooling performance of the freezer.

[0344] In some embodiments, the housing 100 is rectangular, the mounting box 400 is rectangular, and the length direction of the mounting box 400 is perpendicular to the length direction of the housing 100. In some embodiments, the length direction of the mounting box 400 is horizontal.

[0345] Please refer again to Figures 54 and 55. In addition, this application also provides a freezer, comprising: a cabinet 100, the top of which is open, and an air outlet located inside the cabinet 100; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, a first return air inlet 40111 located at one end of the top of the mounting box 400, and the upper surface of the mounting box 400 inclined towards the bottom wall of the cabinet 100 from the side away from the first return air inlet 40111; a compressor disposed in the cabinet 100; an evaporator disposed inside the mounting box 400 and connected to the compressor; and a fan disposed inside the cabinet 100. Under the action of the fan, air inside the cabinet 100 enters the mounting box 400 through the first return air inlet 40111, and the air entering the mounting box 400 is heated by the evaporator before being output through the air outlet.

[0346] In some embodiments, when an item is placed above the mounting box 400, it will slide on the upper surface of the mounting box 400 away from the first return air vent 40111 under the influence of gravity, thus preventing the item from obstructing the first return air vent 40111 and affecting its return air effect. This ensures the return air effect and improves the cooling performance of the freezer.

[0347] In some embodiments, an adjustable friction coefficient coating or material, such as a rubber pad or special coating, is provided on the upper surface of the mounting box 400. Users can adjust the friction according to the type and weight of the items placed to ensure stable sliding or maintaining position. This design prevents items from accidentally sliding, especially when the freezer door is opened or closed. In some embodiments, an automatic sliding guide system is integrated into the upper surface of the mounting box 400. When an item is placed on the guide, the guide senses the weight and activates an electric sliding mechanism to slowly move the item away from the first return air vent 40111. This automatic sliding design not only prevents items from blocking the return air vent but also reduces the need for users to manually adjust the items. In some embodiments, a second return air vent is added to the top of the mounting box 400, working in conjunction with the first return air vent 40111. The second return air vent is located at the other end of the top of the mounting box 400. When the first return air vent is partially blocked, the second return air vent can supplement the return air, ensuring smooth air circulation within the box. This dual-layer return air design effectively reduces the problem of obstructed return air due to improper placement of items.

[0348] In some embodiments, the housing 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the two ends of the length direction of the mounting box 400 are respectively connected to the two inner sidewalls of the width direction of the housing 100. In some embodiments, the inclination direction of the upper surface of the mounting box is the length direction of the upper surface of the mounting box 400. The length direction of the upper surface of the mounting box 400 intersects with the length direction of the mounting box 400. In some embodiments, the upper surface of the mounting box 400 has a plurality of first return air vents 40111. In some embodiments, the opening direction of the first return air vent 40111 is the return air direction of the first return air vent 40111. In some embodiments, the return air direction of the first return air vent 40111 is perpendicular to the upper surface of the mounting box 400. In some embodiments, the return air direction of the first return air vent 40111 is along the height direction of the housing 100. In some embodiments, the first return air vent 40111 is located on the upper surface of the mounting box 400 near the front end of the box body 100. In some embodiments, the first return air vent 40111 is located on the upper surface of the mounting box 400 near the rear end of the box body 100. In some embodiments, referring to FIG55, the top of the mounting box 400 has an upwardly protruding return air portion 4011, and the first return air vent 40111 is formed in the side wall of the return air portion 4011. Referring to FIGS. 56 and 57, because the return air portion 4011 protrudes, it prevents items from covering the first return air vent 40111 when placed on the mounting box 400. Even when items are placed above the return air portion 4011, because the return air portion 4011 protrudes, the bottom of the items is lifted to form a space for airflow, thereby allowing air to enter the mounting box 400 through the first return air vent 40111.

[0349] In some embodiments, referring to FIG58, the return air section 4011 is elongated. In some embodiments, the return air section 4011 is designed as an arc or arch, so that it not only protrudes from the top of the mounting box 400, but also forms a certain curvature on the side. This design can better guide airflow, while preventing items from directly pressing on the return air section 4011, further improving the flow efficiency of airflow. In some embodiments, the return air section 4011 is designed as a trapezoidal structure, with its top width being greater than its bottom, thus forming a more stable airflow channel. The sidewalls of the trapezoidal structure help enhance the guidance of airflow and prevent the first return air inlet 40111 from being blocked. The arc and trapezoidal designs can more effectively guide airflow into the first return air inlet 40111. This provides greater placement stability and reduces the possibility of items blocking the airflow. In some embodiments, an airflow sensor is built into the return air section 4011 to monitor the airflow through the first return air inlet 40111 in real time. When airflow obstruction is detected, the system will automatically adjust the fan power or issue an alarm to remind the user to adjust the placement of items. Airflow monitoring can effectively improve the cooling efficiency of freezers and prevent uneven temperature caused by poor air return.

[0350] In some embodiments, referring to Figures 59 and 60, a first return air inlet 40111 is formed at one end of the return air section 4011 along its length. In some embodiments, the first return air inlet 40111 is formed at both ends of the return air section 4011 along its length. In some embodiments, the first return air inlet 40111 is formed on one side of the return air section 4011 along its width. In some embodiments, the first return air inlet 40111 is formed on both sides of the return air section 4011 along its width. In some embodiments, the first return air inlet 40111 is formed on opposite side walls of the return air section 4011. In some embodiments, the length direction of the return air section 4011 is along the length direction of the upper surface of the housing 100. In some embodiments, the length direction of the return air section 4011 is perpendicular to the length direction of the mounting housing 400. In some embodiments, the length direction of the return air section 4011 is the same as the length direction of the housing 100.

[0351] Air can enter the mounting box 400 through the return air vents on both sides of the return air section 4011. Even if one side of the return air section 4011 is blocked, air can still return through the first return air vent 40111 on the other side of the return air section 40111, further preventing items from obstructing the first return air vent 40111 and affecting its return air effect. This ensures the effectiveness of the return air, thereby improving the cooling effect of the freezer.

[0352] In some embodiments, the height direction of the return air section 4011 is perpendicular to the top wall of the mounting box 400. This facilitates the molding and manufacturing of the return air section 4011. In some embodiments, when the height direction of the return air section 4011 is perpendicular to the top wall of the mounting box 400, the opening direction of the first return air inlet 40111 is the same as the length direction of the upper surface of the mounting box 400. In some embodiments, multiple first return air inlets 40111 on the same return air section 4011 are interconnected. When any first return air inlet 40111 is blocked, return air can still be obtained through the remaining first return air inlets 40111. In some embodiments, the height direction of the return air section 4011 is set along the height direction of the box body 100. This reduces the probability of dust or debris falling directly into the first return air inlet 40111 from above, thus reducing the probability of dust and debris entering the mounting box 400 and improving the service life of the evaporator. In some embodiments, when the height direction of the return air section 4011 is set along the height direction of the box body 100, the opening direction of the first return air inlet 40111 is the same as the length direction of the mounting box 400. In some embodiments, the height direction of the return air section 4011 is the direction in which the return air section 4011 protrudes from the upper surface of the mounting box 400. In some embodiments, the return air section 4011 is integrally formed with the upper surface of the mounting box 400. In some embodiments, multiple return air sections 4011 are spaced apart along the width direction of the mounting box 400. In some embodiments, multiple return air sections 4011 are spaced apart along the length direction of the mounting box 400. By providing multiple return air sections 4011, when an item is placed above the return air section 4011, it will be supported by the multiple return air sections 4011, so that there is space below the item for air to flow. In addition, the number of first return air vents 40111 is increased to improve return air efficiency.

[0353] In some embodiments, the mounting box 400 includes a mounting box body and a mounting box cover. The top of the mounting box body is open, and the mounting box cover is detachably mounted on the top of the mounting box body to close the opening. In some embodiments, a first return air inlet 40111 is formed on the mounting box cover. In some embodiments, a return air section 4011 is formed on the mounting box cover. In some embodiments, the return air section 4011 is integrally formed with the mounting box cover. In some embodiments, referring to FIG61, a second return air inlet 4012 is formed on the vertical side wall of the mounting box 400. This improves return air efficiency. Even if the first return air inlet 40111 is blocked, air can still enter the mounting box 400 through the second return air inlet 4012. This avoids damage to the heat exchanger due to lack of airflow. In some embodiments, the second return air inlet 4012 is located on the corresponding side wall of the mounting box 400 near the end of the first return air inlet 40111. To prevent airflow from being immediately drawn into the first return air inlet 40111 and the second return air inlet 4012, the system ensures that the cold air from the air outlet can fully cool the interior of the freezer before returning to the installation through the first return air inlet 40111 and the second return air inlet 4012. This achieves the effects of enveloping and circulating air, improving the cooling efficiency.

[0354] In some embodiments, referring to FIG62, the second return air inlet 4012 is rectangular. Referring to FIG63, the length direction of the second return air inlet 4012 is along the height direction of the housing 100. In some embodiments, the length direction of the second return air inlet 4012 is along the length direction of the housing 100. In some embodiments, a ventilation shell 500 is also provided inside the housing 100, the ventilation shell 500 is located at the end of the mounting box 400 away from the first return air inlet 40111; the air outlet is opened in the ventilation shell 500. In some embodiments, the evaporator has an output section and an input section, the return air inlet is close to the input section of the evaporator, and the ventilation shell 500 is close to the output section of the evaporator. Air enters the mounting box 400 through the return air inlet, the air moves along the evaporator under the action of the fan, and the air is cooled when passing through the evaporator. The cold air moves to the output section of the evaporator and is output through the air outlet. This increases the contact area and duration between the air and the evaporator. In some embodiments, a step is formed on the inner bottom wall of the housing 100, and the mounting box 400 is attached to the side wall of the step. The step is formed to accommodate the compressor underneath, facilitating the overall layout of the housing 100. In some embodiments, the step is located at one end of the length direction within the housing 100. The upper surface of the step is directly connected to the vertical side wall at one end of the length direction within the housing 100. In some embodiments, the mounting box 400 is abutted against the vertical side plate of the step on the side closest to the step. In some embodiments, the second return air vent 4012 is located on the vertical side of the mounting box 400 away from the step.

[0355] In some embodiments, the air outlet includes a first air outlet, which is formed on one of the vertical sidewalls of the ventilation housing 500. In some embodiments, the first air outlet is formed on the side of the mounting box 400 away from the first return air inlet 40111. In some embodiments, the first air outlet is formed on the upper surface of the mounting box 400.

[0356] In some embodiments, the first air outlet is located on the vertical side of the mounting box 400. In some embodiments, the angle between the upper surface of the mounting box 400 and the inner bottom wall of the box body 100 is greater than 1°. In some embodiments, the angle between the upper surface of the mounting box 400 and the inner bottom wall of the box body 100 is less than 30°. In some embodiments, the angle between the upper surface of the mounting box 400 and the inner bottom wall of the box body 100 is 3°. In some embodiments, the angle between the upper surface of the mounting box 400 and the inner bottom wall of the box body 100 is 5°.

[0357] Referring to Figure 64, in an illustrative embodiment of the freezer of this application, the freezer includes: a cabinet 100, the top of which is open; a vertical side wall inside the cabinet 100 is a mounting wall; and a mounting box 400 is disposed on the inner bottom wall of the cabinet 100, with a return air vent opened in the mounting box 400. A compressor is installed in the housing 100; an evaporator is installed inside the mounting box 400 and connected to the compressor; a ventilation shell 500 is attached to the mounting wall and communicates with the mounting box 400; wherein, referring to Figures 65 and 66, the internal space of the housing 100 is composed of a first receiving cavity 103, a second receiving cavity 104, and a third receiving cavity 105 connected in sequence; the second receiving cavity 104 is located above the mounting box 400; a second air outlet 602 is opened on the side of the ventilation shell 500 facing the first receiving cavity 103; a fourth air outlet 604 is opened on the side of the ventilation shell 500 facing the third receiving cavity 105; the side of the ventilation shell 500 away from the second receiving cavity 104 is tangent to the mounting wall.

[0358] In the above embodiments, the air cooled by the evaporator directly enters the ventilation housing 500. The cold air entering the ventilation opening is directly delivered to the first and third receiving cavities 105 through the second air outlet 602 and the fourth air outlet 604, respectively, optimizing the airflow path and improving cooling efficiency. The cold air inside the ventilation housing 500 is not obstructed during output, reducing the impact on the airflow velocity and increasing the outlet speed.

[0359] In some embodiments, the cabinet 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the cabinet 100. In some embodiments, the two sides of the width direction of the cabinet 100 are the front and rear sides of the cabinet 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the two ends of the mounting box 400 in the length direction are respectively connected to the two inner sidewalls in the width direction of the cabinet 100. In some embodiments, the freezer further includes a first air outlet. The first air outlet communicates with the interior of the mounting box 400, and the cold air cooled by the evaporator is output to the freezer through the first air outlet.

[0360] In some embodiments, a first air outlet is located in the mounting housing 400 and communicates directly with the interior of the mounting housing 400. In some embodiments, a first air outlet is located in the ventilation housing 500 and communicates directly with the interior of the ventilation housing 500. Cold air cooled by the evaporator enters the ventilation housing 500 and is output through the first air outlet. In some embodiments, the freezer further includes a third air outlet. The third air outlet communicates with the interior of the mounting housing 400, and cold air cooled by the evaporator is output to the freezer through the third air outlet. In some embodiments, a third air outlet is located in the mounting housing 400 and communicates directly with the interior of the mounting housing 400. In some embodiments, a third air outlet is located in the ventilation housing 500 and communicates directly with the interior of the ventilation housing 500. Cold air cooled by the evaporator enters the ventilation housing 500 and is output through the third air outlet. In some embodiments, the ventilation housing 500 is rectangular. In some embodiments, a second air outlet 602 is located on the side of the ventilation housing 500 that is vertical and faces the first receiving cavity 103. In some embodiments, a fourth air outlet 604 is formed on the side of the ventilation housing 500 that is vertical and faces the third receiving cavity 105. In some embodiments, the mounting wall located on one side of the first receiving cavity 103 is a first mounting wall 1101.

[0361] Referring to Figure 67, in some embodiments, the first mounting wall 1101 is inclined from the side away from the ventilation housing 500 toward the first receiving cavity 103. This causes the airflow output via the second air outlet 602 to adhere to and be output along the inclined direction of the first mounting wall 1101 into the first receiving cavity 103. This optimizes airflow, allowing the cool air blown from the second air outlet 602 to more effectively cover the entire first receiving cavity 103, improving cooling uniformity and ensuring that items stored in the cavity are cooled evenly.

[0362] In some embodiments, referring to FIG67, the mounting wall located on one side of the third receiving cavity 105 is a second mounting wall 1102. In some embodiments, the second mounting wall 1102 is inclined from the side away from the ventilation housing 500 toward the second receiving cavity 104. This causes the airflow output via the fourth air outlet 604 to adhere to and be output along the inclined direction of the second mounting wall 1102 to the third receiving cavity 105. This optimizes the airflow, allowing the cold air blown from the fourth air outlet 604 to more effectively cover the entire first receiving cavity 103, improving cooling uniformity and ensuring that the items stored in the cavity are cooled uniformly. In some embodiments, the side of the second air outlet 602 away from the second receiving cavity 104 is attached to the first mounting wall 1101 so that the airflow is output along the first mounting wall 1101. In some embodiments, the side of the fourth air outlet 604 away from the second receiving cavity 104 is attached to the second mounting wall 1102 so that the airflow is output along the second mounting wall 1102.

[0363] Referring to Figures 68 and 69, in some embodiments, a first curved section 1103 is provided on the first mounting wall 1101. The first curved section 1103 bends away from the second receiving cavity 104 and is tangent to the edge of the second air outlet 602. The airflow output through the second air outlet 602 contacts the sidewall of the curved section and is guided by the first curved section before being output to the first receiving cavity 103, thereby ensuring that the airflow output through the second air outlet 602 can enter the first receiving cavity 103. The airflow output through the second air outlet 602 inside the ventilation housing 500 is only slowed down by the first curved section 1103, and the reduction in wind speed is small, which can ensure the wind speed of the cold air entering the first receiving cavity 103. Furthermore, the ventilation housing 500 can be partially embedded in the mounting wall, reducing the space occupied in the second receiving cavity 104.

[0364] In some embodiments, the first curved section 1103 is formed by the mounting wall recessing towards the side away from the second receiving cavity 104. In some embodiments, the first curved section 1103 and the inclined first mounting wall 1101 may coexist. In other embodiments, the first curved section 1103 and the inclined first mounting wall 1101 may not coexist. In some embodiments, the side of the second air outlet 602 away from the second receiving cavity 104 is abutted against the first curved section 1103 so that the airflow is output along the first curved section 1103. In some embodiments, multiple curved sections may be provided on the first mounting wall 1101, and the bending angle and direction of each curved section may be different. These curved sections cooperate with each other to further optimize the airflow path output from the second air outlet 602, so that the airflow can flow more effectively along the first mounting wall and enter the first receiving cavity 103. In some embodiments, the first curved section 1103 may be designed as a progressive curve, that is, the bending angle gradually changes with the increase of distance, so that the airflow changes direction more smoothly when passing through the curved section, reducing the loss of eddies and airflow velocity. In some embodiments, a second curved section 1104 is provided on the second mounting wall 1102. The second curved section 1104 bends away from the second receiving cavity 104 and is tangent to the edge of the fourth air outlet 604. The airflow output through the fourth air outlet 604 contacts the sidewall of the curved section and is guided by the first curved section before being output to the third receiving cavity 105, thereby ensuring that the airflow output through the fourth air outlet 604 can enter the third receiving cavity 105. The airflow output through the fourth air outlet 604 within the ventilation housing 500 is only slowed down by the first curved section 1103, and the reduction in airflow velocity is small, which can ensure the airflow velocity of the cold air entering the third receiving cavity 105. Furthermore, the ventilation housing 500 can be partially embedded in the mounting wall, reducing the space occupied within the second receiving cavity 104.

[0365] In some embodiments, the second curved section 1104 is formed by a recess in the mounting wall toward the side away from the second receiving cavity 104. In some embodiments, the second curved section 1104 and the inclined second mounting wall 1102 may coexist. In other embodiments, the second curved section 1104 and the inclined second mounting wall 1102 may not coexist. In some embodiments, the side of the fourth air outlet 604 away from the second receiving cavity 104 is abutted against the second curved section 1104 so that the airflow is output along the second curved section 1104. In some embodiments, a multi-segment curved structure is designed on the second mounting wall 1102, including an initial curved section and a terminal curved section. The initial curved section is used to initially guide the airflow, and the terminal curved section is used to further adjust the direction of the airflow so that it enters the third receiving cavity 105 more accurately. This design helps to improve the accuracy of airflow guidance and reduce airflow turbulence. In some embodiments, guide grooves are designed on the surface of the second curved section 1104, which are aligned with the fourth air outlet 604 to ensure that the airflow runs along a predetermined path when flowing on the surface of the curved section. Guide grooves help reduce airflow scattering, ensuring that cold air enters the third receiving cavity 105 more effectively. In some embodiments, cross guide grooves are designed on the surface of the curved section, allowing the airflow to generate a rotational effect as it passes through the curved section, thereby further optimizing the direction and speed of the airflow and ensuring uniform distribution of cold air. In some embodiments, the first mounting wall 1101 and the second mounting wall 1102 are located in the same plane, and the side of the ventilation shell 500 facing the second receiving cavity 104 is parallel to the mounting wall. This design facilitates the manufacturing of the housing 100.

[0366] Please refer to Figure 64 again. In addition, this application also provides a freezer, which includes: a cabinet 100, the top of the cabinet 100 is open, and one vertical side wall of the cabinet 100 is a mounting wall; a mounting box 400 is disposed on the inner bottom wall of the cabinet 100, and a return air vent is opened in the mounting box 400; a compressor is disposed in the cabinet 100; an evaporator is disposed inside the mounting box 400, and the evaporator is connected to the compressor; a ventilation shell 500 is attached to the mounting wall and communicates with the mounting box 400; wherein, referring to Figures 27 to 33, the internal space of the cabinet 100 is composed of a first receiving cavity 103, a second receiving cavity 104 and a third receiving cavity 105 connected in sequence; the second receiving cavity 104 is located above the mounting box 400. The second air outlet 602 is located on the side of the ventilation housing 500 facing the first receiving cavity 103; the fourth air outlet 604 is located on the side of the ventilation housing 500 facing the third receiving cavity 105; the second air outlet 602 and the fourth air outlet 604 are located on the side of the mounting wall facing the second receiving cavity 104.

[0367] In the above embodiments, the air cooled by the evaporator directly enters the ventilation housing 500. The cold air entering the ventilation opening is directly delivered to the first and third receiving cavities 105 through the second air outlet 602 and the fourth air outlet 604, respectively, optimizing the airflow path and improving cooling efficiency. The cold air inside the ventilation housing 500 is not obstructed during output, reducing the impact on the airflow velocity and increasing the outlet speed.

[0368] In some embodiments, the cabinet 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the cabinet 100. In some embodiments, the two sides of the width direction of the cabinet 100 are the front and rear sides of the cabinet 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the two ends of the length direction of the mounting box 400 are respectively connected to the two inner sidewalls of the width direction of the cabinet 100. In some embodiments, the freezer further includes a first air outlet. The first air outlet communicates with the interior of the mounting box 400, and the cold air cooled by the evaporator is output to the freezer through the first air outlet. In some embodiments, the first air outlet is located in the mounting box 400 and communicates directly with the interior of the mounting box 400. In some embodiments, the first air outlet is located in the ventilation shell 500 and communicates directly with the interior of the ventilation shell 500. The cold air cooled by the evaporator enters the ventilation shell 500 and is output through the first air outlet. In some embodiments, the freezer further includes a third air outlet. The third air outlet communicates with the interior of the mounting box 400, and the cooled air, after being cooled by the evaporator, is output to the freezer through the third air outlet. In some embodiments, the third air outlet is located in the mounting box 400 and communicates directly with the interior of the mounting box 400. In some embodiments, the third air outlet is located in the ventilation housing 500 and communicates directly with the interior of the ventilation housing 500. The cooled air, after being cooled by the evaporator, enters the ventilation housing 500 and is output through the third air outlet. In some embodiments, the ventilation housing 500 is rectangular. In some embodiments, the second air outlet 602 is located on the side of the ventilation housing 500 that is vertical and faces the first receiving cavity 103. In some embodiments, the fourth air outlet 604 is located on the side of the ventilation housing 500 that is vertical and faces the third receiving cavity 105.

[0369] Referring to Figures 70 and 71, in some embodiments, a third curved section 1105 is provided inside the ventilation housing 500; the third curved section 1105 bends from the side facing the first receiving cavity 103 towards the side closer to the second receiving cavity 104; the second air outlet 602 communicates with the third curved section 1105. The third curved section 1105 guides cold air directly to the first receiving cavity 103, improving the efficiency and uniformity of cold air distribution and ensuring temperature control inside the freezer. The airflow is only slowed down by the third curved section 1105, and the reduction in wind speed is small, ensuring the wind speed of the cold air entering the first receiving cavity 103.

[0370] In some embodiments, the length direction of the portion of the third curved segment 1105 away from the first receiving cavity 103 is arranged along the length direction of the housing 100. In some embodiments, the length direction of the portion of the third curved segment 1105 near the first receiving cavity 103 is arranged along the length direction of the housing 100. In some embodiments, the portion of the third curved segment 1105 near the first receiving cavity 103 and the portion away from the first receiving cavity 103 are connected by two tangent arc segments. In some embodiments, an adjustable connection structure is designed between the two tangent arc segments of the third curved segment 1105. This structure allows the user to manually adjust or automatically adjust the radius and connection angle of the arc segments according to actual needs, so as to change the airflow path and speed, so that cold air can enter the first receiving cavity 103 more accurately. In some embodiments, a fourth curved segment 1106 is provided inside the ventilation housing 500; the fourth curved segment 1106 bends from the side facing the third receiving cavity 105 to the side near the second receiving cavity 104; the fourth air outlet 604 communicates with the fourth curved segment 1106. The fourth bend section 1106 guides the cold air directly to the third receiving cavity 105, improving the efficiency and uniformity of cold air distribution and ensuring temperature control inside the freezer. The airflow is only slowed down by the fourth bend section 1106, and the reduction in wind speed is small, which can ensure the wind speed of the cold air entering the third receiving cavity 105.

[0371] In some embodiments, the length direction of the portion of the fourth curved segment 1106 away from the third receiving cavity 105 is arranged along the length direction of the cabinet 100. In some embodiments, the length direction of the portion of the fourth curved segment 1106 near the third receiving cavity 105 is arranged along the length direction of the cabinet 100. In some embodiments, the portion of the fourth curved segment 1106 near the third receiving cavity 105 and the portion away from the third receiving cavity 105 are connected by two tangent arc segments. In some embodiments, the third curved segment 1105 and the fourth curved segment 1106 are arranged symmetrically to each other. This facilitates manual setting of the ventilation shell 500 during production. In some embodiments, an adjustable bending angle design is incorporated inside the fourth curved segment 1106. Through a built-in transmission device or electric motor, the bending angle of the fourth curved segment can be dynamically adjusted according to actual needs to adapt to the requirements of different internal distributions of the freezer. In some embodiments, a multi-path diversion system is designed between the third curved segment 1105 and the fourth curved segment 1106, allowing cold air to be divided into multiple sub-channels before entering the first receiving cavity 103 and the third receiving cavity 105. Each flow channel can be independently controlled to open or close, enabling more precise distribution of cold air and temperature control.

[0372] Referring to Figure 72, in some embodiments, the freezer includes: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent in the mounting box 400; a compressor disposed in the cabinet 100; an evaporator disposed inside the mounting box 400 and connected to the compressor; and a ventilation shell 500 detachably fitted to the inner side wall of the cabinet 100, communicating with the mounting box 400, with a portion of the ventilation shell 500 extending into a first receiving cavity; wherein, referring to Figures 27 to 33, the cabinet 100... The internal space of the 00 consists of a first receiving cavity, a second receiving cavity, and a third receiving cavity 105 connected in sequence; the second receiving cavity is located above the mounting box 400; the first air outlet 601 is opened in the part of the ventilation shell 500 located in the first receiving cavity; the second air outlet 602 is opened in the part of the ventilation shell 500 located in the first receiving cavity; the second air outlet 602 is located above the first air outlet 601; the third air outlet 603 is opened on the side of the ventilation shell 500 facing the second receiving cavity; the fourth air outlet 604 is opened on the side of the ventilation shell 500 facing the third receiving cavity 105.

[0373] Through the above embodiments, air is supplied to the first receiving cavity through the first air outlet 601 and the second air outlet 602, to the second receiving cavity through the third air outlet 603, and to the third receiving cavity 105 through the fourth air outlet 604. This ensures that the cold air cooled by the evaporator can enter the first receiving cavity, the second receiving cavity, and the third receiving cavity 105 respectively, significantly improving the flow and uniformity of cold air within the housing 100. This not only improves the preservation effect of food and extends its shelf life, but also increases the energy efficiency ratio and reduces energy consumption.

[0374] In some embodiments, referring to FIG73, the housing 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the two ends of the length direction of the mounting box 400 are respectively connected to the two inner sidewalls of the housing 100 in the width direction. In some embodiments, a ventilation shell 500 is disposed on one side wall of the mounting box 400 in the width direction. In some embodiments, a ventilation shell 500 is disposed on one side wall of the mounting box 400 in the length direction.

[0375] Referring to Figure 74, in some embodiments, a refrigerator is also provided, comprising: a cabinet 100 with an open top; a mounting box 400 disposed on the inner bottom wall of the cabinet 100, with a return air vent in the mounting box 400; a compressor disposed in the cabinet 100; an evaporator disposed inside the mounting box 400 and connected to the compressor; and a ventilation shell 500 being part of the inner side wall of the cabinet 100, communicating with the mounting box 400. The ventilation shell 500 extends into a first receiving cavity; wherein, referring to Figures 27 to 33, the internal space of the cabinet 100 is composed of a first receiving cavity, a second receiving cavity, and a third receiving cavity 105 connected sequentially. The second receiving cavity is located above the mounting box 400; a first air outlet 601 is opened in the portion of the ventilation shell 500 located in the first receiving cavity; and a second air outlet 602 is opened in the portion of the ventilation shell 500 located in the first receiving cavity. The second air outlet 602 is located above the first air outlet 601; the third air outlet 603 is opened on the side of the ventilation housing 500 facing the second receiving cavity; the fourth air outlet 604 is opened on the side of the ventilation housing 500 facing the third receiving cavity 105.

[0376] Through the above embodiments, air is supplied to the first receiving cavity through the first air outlet 601 and the second air outlet 602, to the second receiving cavity through the third air outlet 603, and to the third receiving cavity 105 through the fourth air outlet 604. This ensures that the cold air cooled by the evaporator can enter the first receiving cavity, the second receiving cavity, and the third receiving cavity 105 respectively, significantly improving the flow and uniformity of cold air within the housing 100. This not only improves the preservation effect of food and extends its shelf life, but also increases the energy efficiency ratio and reduces energy consumption.

[0377] In some embodiments, referring to FIG75, the housing 100 is rectangular, and the mounting box 400 is rectangular, with the length direction of the mounting box 400 perpendicular to the length direction of the housing 100. In some embodiments, the two sides of the width direction of the housing 100 are the front and rear sides of the housing 100, respectively. In some embodiments, the length direction of the mounting box 400 is horizontal. In some embodiments, the two ends of the length direction of the mounting box 400 are respectively connected to the two inner sidewalls of the housing 100 in the width direction. In some embodiments, referring to FIG76, the ventilation shell 500 is disposed on one side wall of the mounting box 400 in the width direction. In some embodiments, the ventilation shell 500 is disposed on one side wall of the mounting box 400 in the length direction. In some embodiments, the inner sidewall of the housing 100 parallel to the side where the ventilation shell 500 is disposed is called the parallel side. The sidewall of the ventilation shell 500 facing the parallel side is parallel to the parallel side.

[0378] In some embodiments, the plane containing the upper surface of the mounting box 400 is defined as a reference plane. The reference plane divides the first receiving cavity, with the first chamber 1031 below the reference plane and the second chamber 1032 above the reference plane. In some embodiments, the first air outlet 601 is located on one side of the ventilation shell 500 located in the first chamber 1031. In some embodiments, the second air outlet 602 is located on one side of the ventilation shell 500 located in the second chamber 1032. Air is supplied to the first chamber 1031 through the first air outlet 601 and to the second chamber 1032 through the second air outlet 602. By dividing the interior of the freezer into the first chamber 1031 and the second chamber 1032, and setting independent air outlets in different chambers, more precise temperature control of each chamber can be achieved. This design allows the freezer to maintain overall refrigeration performance while allowing for layered management of items in different chambers according to their different storage temperature requirements. Furthermore, this design allows cold air to directly enter the first chamber 1031 and the second chamber 1032, reducing ineffective circulation of cold air within the housing 100 and thus improving cooling efficiency. This design also helps reduce energy consumption and achieve energy conservation.

[0379] In some embodiments, referring again to Figure 2, the inner bottom wall of the cabinet 100 has an upward-facing step, and the mounting box 400 is fitted against the side wall of the step; the third receiving cavity 105 is located above the step. The mounting box 400 fits tightly against the side wall of the step, a design that saves space and ensures the stability of the mounting box 400 within the freezer. This layout allows key refrigeration components such as the evaporator to be more compactly integrated inside the freezer, thereby improving refrigeration efficiency. It also simplifies the internal structure of the freezer, facilitating maintenance and cleaning. Furthermore, the step allows for the placement of the compressor beneath it, simplifying the overall layout of the cabinet 100. In some embodiments, the upper surface of the mounting box 400 is flush with the upper surface of the step. This improves the tidiness of the interior of the cabinet 100, making it easier for users to place goods inside and increasing capacity.

[0380] In some embodiments, referring to Figures 79 and 80, the first air outlet 601 is located on the side of the ventilation housing 500 away from the third receiving cavity 105. This is to ensure that the airflow output from the first air outlet 601 is as far away from the third receiving cavity 105 and the second receiving cavity as possible. In some embodiments, the first air outlet 601 is located on the side of the ventilation housing 500 facing the parallel side. Because the ventilation housing 500 is close to the inner wall of the housing 100, the side of the ventilation housing 500 facing the parallel side is the side directly facing the first receiving cavity and is unobstructed. Therefore, this design allows the airflow output from the first air outlet 601 to fill the first receiving cavity as quickly as possible. In some embodiments, when the first air outlet 601 is located on the side of the ventilation housing 500 facing the parallel side, the first air outlet 601 is located inside the first receiving cavity. In some embodiments, when the first air outlet 601 is located on the side of the ventilation housing 500 facing the parallel side, the first air outlet 601 is located inside the first chamber 1031. In some embodiments, a first air outlet 601 is formed on the side of the ventilation housing 500 facing the parallel side and located at an end away from the third receiving cavity 105. In some embodiments, multiple first air outlets 601 are spaced apart along the height direction. The top of the highest first air outlet 601 is not higher than the reference surface. In some embodiments, multiple first air outlets 601 are spaced apart along the height direction. The inner top wall of the first air outlet 601 away from the bottom of the housing 100 is flush with the reference surface. In some embodiments, multiple first air outlets 601 are spaced apart along the height direction. The inner top wall of the first air outlet 601 away from the bottom of the housing 100 is located on the side of the reference surface facing the bottom of the housing 100. In some embodiments, when the first air outlet 601 is formed on the side of the ventilation housing 500 facing the parallel side, multiple first air outlets 601 may be spaced apart along the length direction of the housing 100. In some embodiments, a second air outlet 602 is formed on the side of the ventilation housing 500 away from the third receiving cavity 105. So that the airflow output from the first air outlet is as far away as possible from the third receiving cavity 105 and the second receiving cavity.

[0381] In some embodiments, referring to FIG82, the second air outlet 602 is formed on the side of the ventilation housing 500 facing the parallel side. Because the ventilation housing 500 is close to the inner wall of the housing 100, the side of the ventilation housing 500 facing the parallel side is the side directly facing the first receiving cavity and is unobstructed. Therefore, this design allows the airflow output from the second air outlet 602 to fill the first receiving cavity as quickly as possible. In some embodiments, when the second air outlet 602 is formed on the side of the ventilation housing 500 facing the parallel side, the second air outlet 602 is located inside the second receiving cavity. In some embodiments, when the second air outlet 602 is formed on the side of the ventilation housing 500 facing the parallel side, the second air outlet 602 is located inside the second chamber 1032. In some embodiments, the second air outlet 602 is formed on the side of the ventilation housing 500 facing the parallel side and is located at the end away from the third receiving cavity 105. In some embodiments, multiple second air outlets 602 are spaced apart along the height direction. The bottom of the lower second air outlet 602 is not lower than the reference surface. In some embodiments, multiple second air outlets 602 are spaced apart along the height direction. The inner bottom wall of the second air outlet 602 near the bottom of the housing 100 is flush with the reference surface. In some embodiments, multiple second air outlets 602 are spaced apart along the height direction. The inner bottom wall of the second air outlet 602 near the bottom of the housing 100 is located on the side of the reference surface away from the bottom of the housing 100. In some embodiments, when the second air outlet 602 is opened on the side of the ventilation housing 500 facing the parallel side, multiple second air outlets 602 may be spaced apart along the length direction of the housing 100. In some embodiments, a third air outlet 603 extends to the side of the ventilation housing 500 located in the first receiving cavity. In some embodiments, when there is only one third air outlet 603, the airflow output from a portion of the third air outlet 603 can deliver cold air to the first receiving cavity. The third air outlet 603 delivers cold air to both the second receiving cavity and the first receiving cavity simultaneously, improving the uniformity of cold air between the first receiving cavity and the enemy receiving cavity, thereby improving the cooling effect.

[0382] In some embodiments, referring to FIG83, multiple third air outlets 603 may be spaced apart along the length of the housing 100. In some embodiments, when there are multiple third air outlets 603, at least one third air outlet 603 is located on the side of the ventilation housing 500 located in the first receiving cavity. In some embodiments, multiple third air outlets 603 can be considered as one third air outlet 603. In some embodiments, a fourth air outlet 604 is formed on the side of the ventilation housing 500 opposite to the first receiving cavity. In some embodiments, a portion of the ventilation housing 500 extends into the third receiving cavity 105. The fourth air outlet 604 is formed in the portion of the ventilation housing 500 extending into the third receiving cavity 105. In some embodiments, the fourth air outlet 604 is formed on the side of the ventilation housing 500 facing the parallel side. In some embodiments, when the fourth air outlet 604 is formed on the side of the ventilation housing 500 facing the parallel side, the fourth air outlet 604 is located within the third receiving cavity 105.

[0383] In some embodiments, referring to Figures 77 and 78, when the fourth air outlet 604 is opened on the side of the ventilation housing 500 facing the parallel side, the fourth air outlet 604 is located at the end of the ventilation housing 500 away from the first receiving cavity. In some embodiments, multiple fourth air outlets 604 are spaced apart along the height direction. In some embodiments, when the fourth air outlet 604 is opened on the side of the ventilation housing 500 facing the parallel side, multiple fourth air outlets 604 may be spaced apart along the length direction of the housing 100.

[0384] In some embodiments, referring to FIG. 84, the freezer may include a cabinet 100. In some embodiments, the height direction of the cabinet is from bottom to top. The cabinet may have a length direction. The length direction of the cabinet is from one end to the other. The front and rear directions of the cabinet are the front-to-back direction. The width direction of the cabinet is the front-to-back direction. Of the height, front-to-back, and length directions, two are perpendicular to each other. In some embodiments, referring to FIG. 84 and FIG. 85, the top of the cabinet 100 has a cabinet opening 1061. In some embodiments, the cabinet may have a receiving cavity 1060. The receiving cavity 1060 can be a space for placing items, enabling the freezer to freeze items. In some embodiments, the receiving cavity 1060 may communicate with the cabinet opening 1061. The cabinet opening 1061 is an opening for placing items, allowing items to be placed into the receiving cavity through the cabinet opening.

[0385] In some embodiments, referring to Figures 84 and 85, the freezer may include a door 200. The door 200 can be used to open or close the freezer opening. The door 200 can be rotatably connected to the freezer. The rear end of the door 200 can be rotatably connected to the freezer. Flipping the door switches the door from a closed to an open position. When the door 200 opens the freezer opening, the front end of the door can gradually move rearward.

[0386] In some embodiments, referring to Figures 84 and 85, the cabinet may include an outer shell 102. The cabinet may include an inner liner 101. The inner liner 101 may be disposed within the outer shell. Items may be placed inside the inner liner 101. A first heat exchanger cavity 1062 is provided within the inner liner 101. In some embodiments, the freezer may include a first heat exchanger. The first heat exchanger may be an evaporator 300. The first heat exchanger may be disposed within the inner liner. The first heat exchanger may be used for heat exchange with air. The first heat exchanger may be disposed within the first heat exchanger cavity. In some embodiments, referring to Figure 86, the first heat exchanger may be arranged along the front-rear direction of the cabinet. The first heat exchanger may be disposed within the first heat exchanger cavity along the front-rear direction of the cabinet. In some embodiments, referring to Figure 87, the longitudinal direction of the first heat exchanger may be parallel to the front-rear direction of the cabinet.

[0387] In some embodiments, referring to Figures 88 and 89, the freezer may include a fan 700. The fan 700 provides power for airflow. The fan 700 may be located inside the inner liner. The fan 700 may be located on one side of the first heat exchanger. The fan 700 may be located on one side of the first heat exchanger in the front-rear direction. The fan 700 may be located in front of the first heat exchanger. The fan 700 may be located behind the first heat exchanger. In some embodiments, referring to Figure 88, the freezer may include a return air vent 401. The return air vent 401 allows air from the receiving cavity to enter the first heat exchanger cavity. The return air vent connects the receiving cavity and the first heat exchanger cavity.

[0388] In some embodiments, referring to FIG86, the freezer may include an air outlet 600. The air outlet is used for air from the first heat exchanger cavity to enter the receiving cavity. The air outlet can connect the receiving cavity and the first heat exchanger cavity. In some embodiments, the fan rotates to cause air from the receiving cavity to flow through the return air inlet to the first heat exchanger cavity to exchange heat with the first heat exchanger, and the air after exchanging heat with the first heat exchanger flows through the air outlet back into the receiving cavity. Referring to FIG90, multiple sets of return air inlets may include a first return air inlet 4011, and multiple return air openings of the first return air inlet 4011 may be arranged along the length direction of the cabinet, and a second return air inlet 4012 may be located below the first return air inlet.

[0389] In some embodiments, referring to Figures 91 and 92, the freezer may include a drip tray 810. The drip tray may be disposed inside the inner liner. The drip tray may be disposed below the first heat exchanger to collect condensate from the first heat exchanger. In some freezers of some embodiments, the heat exchanger is placed directly on the drip tray. The condensate flowing from the heat exchanger to the drip tray is blocked by the bottom of the heat exchanger, which is not conducive to the collection of condensate and its flow out of the drip tray. Therefore, this application proposes a freezer that facilitates water collection and drainage. In some embodiments, a vertically arranged plane perpendicular to the front-back direction of the cabinet is defined as the first plane M1.

[0390] In some embodiments, referring to Figures 91 and 92, the plane containing the bottom end of the first heat exchanger can be the bottom surface 301 of the heat exchanger. The bottom surface of the heat exchanger can be inclined along the length of the housing. The intersection line between the plane containing the bottom surface of the heat exchanger and the first plane can be a first intersection line. The angle between the first intersection line and the horizontal plane can be a first angle α.

[0391] In some embodiments, referring to FIG. 93, the water receiving tray may include a water receiving bottom surface 8101. The water receiving bottom surface may be located at the inner bottom of the water receiving tray. In some embodiments, referring to FIG. 93, the water receiving bottom surface may include a first water receiving surface 81011. The first water receiving surface may be inclined along the length direction of the housing. The inclination direction of the first water receiving surface along the length direction of the housing may be the same as the inclination direction of the bottom surface of the heat exchanger. The intersection line of the plane containing the first water receiving surface and the first plane may be a second intersection line. The angle between the second intersection line and the horizontal plane may be a second angle β. Setting β>α, such that the inclination angle of the first water receiving surface is greater than the inclination angle of the bottom surface of the heat exchanger, avoids obstruction of the flow of condensate at the bottom of the heat exchanger, facilitates the rapid accumulation of condensate, and facilitates the discharge of condensate.

[0392] In some embodiments, α > the first parameter value. The first parameter value can be 2°, 4°, or 6°. This ensures that the bottom surface of the heat exchanger is tilted, allowing condensate on the first heat exchanger to flow towards its lower part, facilitating condensate collection. In some embodiments, α < the second parameter value. The second parameter value can be 20°, 22°, or 24°. This avoids excessive tilting of the bottom of the first heat exchanger, reducing the vertical space occupied by the bottom of the first heat exchanger and ensuring the volume of the refrigerator's housing.

[0393] In some embodiments, the bottom surface of the heat exchanger can be horizontally arranged along the front-to-back direction of the housing to avoid excessively increasing the height of the first heat exchanger in the vertical direction and reduce the space occupied by the first heat exchanger inside the inner tank. In some embodiments, the plane containing the top of the first heat exchanger can be the top surface of the heat exchanger. The top surface and the bottom surface of the heat exchanger can be parallel. In some embodiments, a multi-layer water collection structure is provided, with each layer of water collection tray having a different inclination angle and height. Condensate collects layer by layer as it flows through each layer and finally flows into the bottom water collection tray, thereby reducing the retention of water droplets on the bottom surface of the heat exchanger.

[0394] In some embodiments, a series of drainage grooves are designed at the bottom of the drip tray 810. These grooves can be combined with the inclined angle of the bottom surface of the drip tray to form a path that guides condensate water to flow quickly into the drain outlet. The opening angle and number of drainage grooves can be adjusted according to the actual usage requirements of the freezer. In some embodiments, a hydrophobic coating is applied to the surface of the drip tray 810, allowing condensate water to roll off quickly upon contact with the surface of the drip tray, reducing water droplet retention and increasing the water flow rate.

[0395] In some embodiments, referring to FIG. 93, the bottom surface for receiving water may include a second water receiving surface 81012. There may be multiple second water receiving surfaces. Along the front-rear direction of the housing, the second water receiving surfaces may be inclined, facilitating the flow of condensate from the first heat exchanger to the lower part of the second water receiving surface, thus facilitating the collection and discharge of condensate. In some embodiments, along the length direction of the housing, the second water receiving surfaces may be inclined. Along the length direction of the housing, the inclination direction of the second water receiving surfaces may be the same as the inclination direction of the bottom surface of the heat exchanger. In some embodiments, referring to FIGS. 93-97, the intersection line of the plane containing the second water receiving surface and the first plane may be a third intersection line, and the angle between the third intersection line and the horizontal plane may be a third angle γ1. γ1≥α, which facilitates the inclined arrangement of the bottom surface of the heat exchanger along the length direction of the housing and further promotes the collection and discharge of condensate.

[0396] In some embodiments, referring to FIG. 93, there may be at least two second water-receiving surfaces. The second water-receiving surfaces have the same inclination direction along the length of the tank. In some embodiments, of the at least two second water-receiving surfaces, a portion of the second water-receiving surfaces is located behind the first water-receiving surface, and another portion of the second water-receiving surfaces is located in front of the first water-receiving surface. In some embodiments, along the front-rear direction of the tank, the first water-receiving surface may be located between a portion of the second water-receiving surfaces and another portion of the second water-receiving surfaces. In some embodiments, referring to FIGS. 94 and 95, the second water-receiving surface located behind the first water-receiving surface may be a second rear water-receiving surface 810121. Referring to FIGS. 96 and 97, the second water-receiving surface located in front of the first water-receiving surface may be a second front water-receiving surface 810122. In some embodiments, along the front-rear direction of the tank, the inclination directions of the second rear water-receiving surface and the second front water-receiving surface may be opposite.

[0397] In some embodiments, referring to FIG93, a heat exchanger support portion 810123 may be formed on the second water contact surface. The heat exchanger support portion may be formed as an upward protrusion on the surface of the second water contact surface. A first heat exchanger may be disposed on the heat exchanger support portion.

[0398] In some embodiments, referring to FIG98, the inner liner may include an inner liner first support surface 101231 located below the first water receiving surface. The inner liner first support surface may be located on the inner side of the inner liner. The inner liner first support surface may be located below the first water receiving surface. Along the length direction of the housing, the inner liner first support surface may be inclined. Along the length direction of the housing, the inclination direction of the inner liner first support surface may be the same as the inclination direction of the first water receiving surface.

[0399] Referring to Figures 99 and 100, the intersection line between the plane containing the first support surface 101231 of the inner liner and the first plane can be a fourth intersection line. The angle between the fourth intersection line and the horizontal plane can be a fourth angle γ2. γ2>α. In some embodiments, the first support surface of the inner liner can be parallel to the first water receiving surface. The first support surface of the inner liner is in contact with the outer bottom surface of the water receiving tray.

[0400] In some embodiments, referring to FIG99, the inner liner may include a second inner liner support surface 101232 located below the second water-receiving surface. The second inner liner support surface may be located inside the inner liner. The second inner liner support surface 101232 is parallel to the second water-receiving surface. In some embodiments, the second inner liner support surface 101232 may include a second inner liner front support surface 1012321 located in front of the first inner liner support surface. The second inner liner front support surface may be parallel to the second front water-receiving surface. The second inner liner support surface 101232 may include a second inner liner rear support surface 1012322 located behind the first inner liner support surface. The second inner liner rear support surface may be parallel to the second rear inner wall surface.

[0401] In some embodiments, referring to FIG. 95, a drain hole 8102 may be formed on the drip tray. The drain hole 8102 is used to drain condensate from the drip tray into the inner liner. The drain hole may penetrate the drip tray in the thickness direction. In some embodiments, referring to FIG. 96, a drain hole may be provided at the lower end of the first drip surface to facilitate the drainage of condensate from the drip tray. In some embodiments, the bottom drip surface may include a third drip surface 81013. The third drip surface 81013 may be located at the bottom end of the first drip surface. The third drip surface may be connected to the bottom end of the first drip surface. The third drip surface may be connected to a second drip surface. The connection between the third drip surface and the second drip surface may have a first boundary line.

[0402] In some embodiments, the third water receiving surface is inclined along the length of the tank, and the inclination direction of the third water receiving surface is opposite to that of the first water receiving surface. In some embodiments, the third water receiving surface is horizontal along the front-rear direction of the tank. In some embodiments, the third water receiving surface is inclined along the front-rear direction of the tank. The inclination direction of the third water receiving surface is the same as that of the second front water receiving surface along the front-rear direction of the tank. The inclination direction of the third water receiving surface is the same as that of the second rear water receiving surface along the front-rear direction of the tank. In some embodiments, a water receiving tray drain hole may be provided at the connection between the first water receiving surface and the third water receiving surface. In some embodiments, a water receiving tray drain hole may be provided at the first boundary line between the second water receiving surface and the third water receiving surface. Multiple water receiving tray drain holes may be provided at the first boundary line between the second water receiving surface and the third water receiving surface, and the multiple water receiving tray drain holes are arranged sequentially along the first boundary line between the second water receiving surface and the third water receiving surface.

[0403] In some embodiments, referring to FIG92, a drain channel 10122 may be formed on the inner liner. The drain channel 10122 may communicate with the first heat exchanger cavity. The drain channel is used to drain condensate from the inner liner. In some embodiments, the inner diameter of the drain channel at the smaller drain cross-sectional area may be a first inner diameter D1. The drain hole of the drip tray may have an inner contour provided on the inner surface of the drip tray. The maximum distance between any two points on the inner contour of the drain hole of the drip tray may be less than the first inner diameter, to prevent the refrigerator from entering the inner liner through the drain hole of the drip tray and clogging the drain channel, thus ensuring the unobstructed flow of the drain channel.

[0404] In some embodiments, referring to FIG92, the drainage channel may include a first drainage section 101221. The inner diameter of the first drainage section may be a first inner diameter D1. In some embodiments, D1 > a third parameter value, which may be 6mm, 5mm, or 4mm. This ensures that the first inner diameter is not too small, guaranteeing that condensate in the inner liner drains out. In some embodiments, D1 < a fourth parameter value, which may be 15mm, 16mm, or 17mm. This ensures that the first inner diameter is not too large, preventing the overall size of the first drainage section from being too large and affecting the assembly of the first drainage section. In some embodiments, the maximum distance between any two points on the inner contour of the drain hole in the water receiving tray may be a first distance L1. L1 ≤ a fifth parameter value, which may be 9mm, 10mm, or 11mm. This prevents the drain hole in the water receiving tray from being too large, causing large ice blocks to fall into the inner liner and block the drainage channel, ensuring the unobstructed flow of the drainage channel. In some embodiments, the drainage channel is located on the side of the drain hole in the water receiving tray away from the first water receiving surface. In some embodiments, the vertical dimension between the lowest point and the highest point of the drain hole in the water tray can be a first height H1. H1 > a sixth parameter value. The sixth parameter value can be 1mm, 2mm, or 3mm to ensure that the first height value allows water to form flow inertia on the inclined first water receiving surface, causing the water to flow towards the drain channel side, facilitating water flow into the drain channel. In some embodiments, the projection dimension of the distance between the last point and the first point of the drain hole in the water tray on the horizontal plane is a second distance L2. L2 > a seventh parameter value. The seventh parameter value can be 4mm, 5mm, or 6mm to ensure the size of the drain hole in the water tray, avoiding the drain hole being too small and affecting the efficiency of condensate drainage.

[0405] In some embodiments, the freezer may include a refrigeration system that supplies cooling capacity to the housing cavity. The refrigeration system may include a compressor. The refrigeration system may include a condenser. The refrigeration system may include a throttling device. The operation of the refrigeration system may include a compression process. The compression process is as follows: the compressor starts working, low-temperature, low-pressure refrigerant is drawn into the compressor, compressed into high-temperature, high-pressure superheated gas in the compressor cylinder, and then discharged into the condenser. The operation of the refrigeration system may include a condensation process. The condensation process is as follows: the high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, the temperature continuously decreases, gradually being cooled into room-temperature, high-pressure saturated vapor, and further cooled into saturated liquid, where the temperature no longer decreases; this temperature is called the condensation temperature, and the pressure of the refrigerant remains almost constant throughout the condensation process. The operation of the refrigeration system may include a throttling process. The throttling process is as follows: the condensed saturated refrigerant liquid, after being filtered by a dryer to remove moisture and impurities, flows into the throttling device, where it reduces pressure and the refrigerant becomes room-temperature, low-pressure wet vapor. The operation of the refrigeration system may include an evaporation process. The evaporation process is as follows: ambient temperature and low pressure wet vapor begins to absorb heat and vaporize in the evaporator, which not only lowers the temperature of the evaporator and its surroundings, but also turns the refrigerant into a low temperature and low pressure gas. The refrigerant coming out of the evaporator passes through the gas-liquid separator and returns to the compressor. The above process is repeated to transfer the heat inside the freezer to the air outside the freezer, thus achieving the purpose of refrigeration.

[0406] In some embodiments, a compressor cavity may be formed within the housing. The compressor is disposed within the compressor cavity. The compressor cavity may be disposed within the outer casing. The compressor cavity may be located outside the inner liner. Along the length of the housing, the compressor cavity is located on one side of the first heat exchanger cavity. Along the length of the housing, the outer casing includes two opposing ends. The compressor cavity may be located at one end along the length of the housing.

[0407] In some embodiments, referring to FIG86, the housing may include a bottom plate 820. The bottom plate 820 may be disposed within the outer casing. The bottom plate may be connected to the outer casing to form a compressor cavity. In some embodiments, the bottom plate may include a first bottom plate. The first bottom plate may be located at the top of the bottom plate. The compressor may be located below the first bottom plate. In some embodiments, the bottom plate may include a second bottom plate. The top end of the second bottom plate may be connected to the first bottom plate. The compressor may be located on one side of the second bottom plate. The second bottom plate may be vertically arranged. The extending direction of the second bottom plate may be at an angle to the vertical direction. In some embodiments, a drip tray may be disposed within the inner liner, and the drip tray may be located below the first heat exchanger to collect condensate flowing down from the first heat exchanger. In some embodiments, a heating device may be provided on the first heat exchanger. The heating device is capable of defrosting the first heat exchanger. The drip tray may also frost or freeze. Currently, the heating device is far from the water tray, and the heating device generally transfers heat to the water tray through air. However, the heat transfer effect is not good, resulting in low defrosting efficiency and incomplete defrosting, which will affect the heat exchange efficiency of the heat exchanger.

[0408] In some embodiments, referring to Figures 101 and 102, the first heat exchanger may be disposed on a water receiving tray. Referring to Figure 103, the water receiving tray may include a first water receiving plate 8103. In some embodiments, the first water receiving plate may include a first support rib 81031. The first support rib 81031 may be disposed on the side of the first water receiving plate near the first heat exchanger. In some embodiments, referring to Figures 104 and 105, the freezer may include an electric heating device. The electric heating device may include a heating tube 831. Referring to Figures 105 and 106, the heating tube may include a bottom heating tube 8311. In some embodiments, referring to Figures 107 and 108, the bottom heating tube 8311 may be connected to the first heat exchanger. The bottom heating tube may be located at the bottom end of the first heat exchanger. In some embodiments, the first support rib may contact the bottom heating tube.

[0409] In some embodiments, referring to FIG105, the first support rib may have a first gap G1 with the bottom heating pipe. In some embodiments, the first heat exchanger may be in contact with the first support rib. In some embodiments, the first heat exchanger may have a gap with the first support rib. Setting the first support rib to be in contact with the bottom heating pipe or having a first gap ensures that while the water tray, the first heat exchanger, and the bottom heating pipe are installed normally, the first support rib and the bottom heating pipe are as close as possible, which can enhance the heat conduction effect, compensate for the problem of low air convection thermal conductivity, and improve the defrosting effect of the bottom heating pipe on the water tray. In some embodiments, when the first support rib and the bottom heating pipe have a first gap G1, 0 < first gap G1. First gap G1 ≤ thirteenth parameter value. The thirteenth parameter value can be 5mm, 7.5mm, or 10mm, so that there is a certain installation gap, allowing the first support rib to be as close as possible to the bottom heating pipe. In some embodiments, the heating pipe can be an aluminum pipe.

[0410] In some embodiments, there may be multiple first support ribs. These multiple first support ribs may be spaced apart along the front-rear direction of the housing. In some embodiments, referring to FIG103, the first support rib may include a first support rib support surface 8103111. The first support rib support surface 8103111 may be located at the top of the first support rib. The first support rib support surface 8103111 contacts the bottom heating pipe. The first support rib support surface 8103111 and the bottom heating pipe may have a first gap G1. In some embodiments, along the length direction of the housing, the first support rib support surface is inclined, such that the first support rib support surface is adapted to the arrangement direction of the bottom heating pipe and the first heat exchanger. The inclination direction of the first support rib support surface may be the same as the inclination direction of the bottom surface of the heat exchanger. The first support rib support surfaces of the multiple first support ribs may be parallel or coplanar, such that the multiple first support rib support surfaces are adapted to the arrangement direction of the bottom heating pipe and the first heat exchanger. In some embodiments, along the front-rear direction of the housing, the first support rib support surface is horizontal, such that the first support rib support surface is adapted to the arrangement direction of the bottom heating pipe and the first heat exchanger.

[0411] In some embodiments, referring to FIG103, the first support rib may have a first support rib surface 810311. The first support rib surface 810311 may include a first support rib support surface 8103111. In some embodiments, the first water receiving plate may have a first water receiving surface 81011. The first water receiving surface may be disposed on the top of the first water receiving plate. In some embodiments, the first water receiving plate may have a first support rib surface. The first support rib surface may be disposed on the top of the first water receiving plate. In some embodiments, along the length direction of the housing, the first water receiving surface may be inclined, and the inclination direction of the first water receiving surface is the same as the inclination direction of the first support rib support surface, which facilitates the collection of condensate. In some embodiments, along the length direction of the housing, the inclination direction of the first water receiving surface may be the same as the inclination direction of the bottom surface of the heat exchanger. In some embodiments, the length direction of the first heat exchanger is parallel to the front-rear direction of the housing. The width direction of the first heat exchanger is set at an acute angle to the length direction of the housing. The height direction of the first heat exchanger may be set at an acute angle to the height direction of the housing. The water receiving tray is located below the first heat exchanger.

[0412] In some embodiments, referring to FIG102, the first heat exchanger may include a first end plate 3041. The first end plate may be disposed at one end of the first heat exchanger in the width direction. The first heat exchanger may include a second end plate 3042. The second end plate may be disposed at the other end of the first heat exchanger in the width direction. In some embodiments, referring to FIG106, the first heat exchanger may include fins 303. A plurality of fins are disposed between the first and second end plates. In some embodiments, referring to FIG102, the first heat exchanger may include a first refrigerant pipe 302. The first refrigerant pipe penetrates the first end plate. The first refrigerant pipe penetrates the second end plate. The first refrigerant pipe penetrates the fins. In some embodiments, the thickness direction of the fins is parallel to the width direction of the first heat exchanger. The fins may be perpendicular to the bottom surface of the heat exchanger. In some embodiments, the first refrigerant pipe may include a first straight pipe. The extension direction of the first straight pipe may be parallel to the width direction of the first heat exchanger. The first straight pipe penetrates the fins.

[0413] In some embodiments, referring to FIG107, fins 303 may include bottom fins 3031 disposed at the bottom of the first heat exchanger. At least a portion of the bottom fins has a fin bottom locking portion 30311 at its bottom end. The bottom end of the fin bottom locking portion has an opening, and the bottom heating tube is locked in the fin bottom locking portion through the bottom end opening of the fin bottom locking portion, facilitating the fixation of the bottom heating tube. In this application, referring to FIG107, the bottom of the first end plate of the heat exchanger has an end plate bottom locking portion 3043. The bottom of the second end plate of the heat exchanger has an end plate bottom locking portion. The bottom end of the end plate bottom locking portion has an opening. The bottom heating tube is locked in the end plate bottom locking portion through the bottom end opening of the end plate bottom locking portion, facilitating the fixation of the bottom heating tube. In some embodiments, a first straight tube may have multiple fins. In some embodiments, the thickness direction of the fins may be the same as the extension direction of the first straight tube. In some embodiments, the thickness direction of the fins may be perpendicular to the front-back direction of the housing. The thickness direction of the fins may be parallel to the bottom surface of the heat exchanger. This ensures that the inclination angle of the first water contact surface is greater than the inclination angle of the bottom surface of the heat exchanger, preventing the bottom end of the fins from obstructing the flow of condensate, facilitating the rapid accumulation of condensate, and making it easier for condensate to drain.

[0414] In some embodiments, the first heat exchanger may be disposed within the first heat exchanger cavity. A fan may be disposed within the inner liner. The fan may be disposed on one side of the first heat exchanger. A water collection tray may be disposed within the inner liner. The water collection tray may be located below the first heat exchanger. A water collection tray drain hole for draining water may be formed on the water collection tray. Referring to Figure 108, the fan may be disposed on one side of the first heat exchanger in the front-rear direction. The first heat exchanger may be horizontally arranged along the front-rear direction of the housing. The length direction of the first heat exchanger may be parallel to the front-rear direction of the housing. The first heat exchanger may be inclined along the length direction of the housing. Setting the length direction of the first heat exchanger horizontal and the width direction inclined facilitates the drainage of condensate and reduces the space occupied by the first heat exchanger within the inner liner while maintaining the same heat exchange capacity, thereby increasing the storage space. In some embodiments, the thickness direction of the fins may be perpendicular to the length direction of the first heat exchanger. The thickness direction of the fins may be parallel to the width direction of the first heat exchanger. The thickness direction of the fins is inclined along the length direction of the housing. In some embodiments, the fan's rotation axis can be arranged along the front-to-back direction of the housing. The fan's rotation axis can be parallel to the length direction of the first heat exchanger.

[0415] In some embodiments, referring to FIG108, the inner liner may include an inner liner bottom plate 1014. The inner liner bottom plate may be disposed at the bottom of the inner liner. Referring to FIG110, the inner liner bottom plate may include a heat exchanger cavity plate 10143. Referring to FIG109, along the length direction of the housing, the inner liner bottom plate may include an inner liner first bottom plate 10142 located on one side of the heat exchanger cavity plate. Referring to FIGS.108-110, along the length direction of the housing, the inner liner bottom plate may include a stepped plate 10141 located on the other side of the heat exchanger cavity plate. In some embodiments, the stepped plate is located at one end of the inner liner bottom plate along the length direction of the housing. The inner liner first bottom plate may be located at the other end of the inner liner bottom plate along the length direction of the housing. In some embodiments, the inner liner first bottom plate may include an inner liner first bottom plate top surface 101421. The inner liner first bottom plate top surface may be disposed at the top of the inner liner first bottom plate.

[0416] In some embodiments, referring to FIG110, the step plate may include a step top surface 101411 disposed at the top of the step plate. In some embodiments, in the height direction of the housing, the top surface of the inner liner first bottom plate is lower than the step top surface. The distance between the lower point of the step top surface and the highest point of the top surface of the inner liner first bottom plate in the height direction of the housing is a third distance L3. Referring to FIG109, the fan may include a fan wheel 701. The distance between the center of the fan wheel and the highest point of the top surface of the inner liner first bottom plate in the height direction of the housing is a fourth distance L4. L4 / L3 ≤ the eighth parameter value. The eighth parameter value can be 0.9, 1, or 1.1. The ninth parameter value ≤ L4 / L3. The ninth parameter value can be 0.2, 0.3, or 0.4. Setting the ninth parameter value ≤ L4 / L3 ≤ the eighth parameter value can limit the position of the fan, so that the fan position is appropriate to ensure air volume. In this application, the distance between the highest point of the first heat exchanger and the highest point of the top surface of the inner liner first bottom plate in the height direction of the housing is a fifth distance L5. L5 / L3 ≤ the tenth parameter value. The tenth parameter value can be 0.9, 1, or 1.1. The eleventh parameter value is ≤ L5 / L3. The eleventh parameter value is 0.2, 0.3, or 0.4. Setting the eleventh parameter value to ≤ L5 / L3 ≤ the tenth parameter value ensures the position of the first heat exchanger and the fan, improving the heat exchange effect. In some embodiments, referring to FIG88, the freezer may include a mounting box 400. The mounting box may be disposed inside the inner liner. The mounting box and the inner liner may define a first heat exchanger cavity 1062. In some embodiments, the freezer may include a ventilation shell 500. The ventilation shell 500 may be disposed inside the inner liner. The ventilation shell and the inner liner may define an air outlet duct 502. The air outlet duct can connect the air outlet and the first heat exchanger cavity. In some embodiments, the fan 700 may be disposed inside the air outlet duct. The fan may include a fan wheel 701. In some embodiments, the ventilation shell may include a volute enclosure 501. The volute enclosure may surround the periphery of the fan wheel.

[0417] In some embodiments, referring to FIG111, the horizontal line at the center of the impeller can be a first straight line. The first straight line intersects the inner wall of the volute casing and forms two intersection points. The two intersection points can be located on opposite sides of the impeller center. The distance between the two intersection points can be a sixth distance L6. The midpoint of the line connecting the two intersection points can be a first point. The distance between the center of the fan and the first point can be a seventh distance L7. L7 / L6 ≤ the twelfth parameter value. The twelfth parameter value can be 1 / 3, 1 / 4, or 3 / 8. Setting L7 / L6 ≤ the twelfth parameter value can limit the positional relationship between the volute casing and the impeller, ensuring airflow and wind speed. In some embodiments, the water receiving tray can include a first water receiving plate 8103. The first water receiving plate can be located below the first heat exchanger. In some embodiments, referring to FIG103, the first water receiving plate can include a first water receiving surface 81011 disposed on its top. The first water receiving surface can be disposed on the side of the first water receiving plate near the first heat exchanger. Along the front-rear direction of the housing, the first water receiving surface can be horizontally disposed. The first water receiving surface can be inclined along the front-to-back direction of the housing. The first water receiving surface can also be inclined along the length of the housing, with the inclination direction of the first water receiving surface being the same as that of the first heat exchanger. In some embodiments, along the length of the housing, the drain hole of the water receiving tray is located at the bottom end of the first water receiving surface, away from the top end, facilitating water collection and gathering. In some embodiments, the first water receiving plate may be provided with a first support rib 81031. The first support rib 81031 can be located on the side of the first water receiving plate near the first heat exchanger. The top of the first water receiving plate is provided with several first support ribs, which are spaced apart along the front-to-back direction of the housing. This prevents the fins from obstructing drainage, ensuring smooth drainage, and the first support ribs can also prevent air from flowing from the bottom of the first heat exchanger to the fan, allowing air to pass through the first heat exchanger and improving heat exchange efficiency.

[0418] The first supporting rib may have a first supporting rib surface. The first water receiving plate may have a first supporting rib surface. The first supporting rib surface may be located on the top of the first water receiving plate. The first supporting rib surface may be located on the side of the first water receiving plate near the first heat exchanger. The first supporting rib surface may be connected to the first water receiving surface. In some embodiments, a portion of the first water receiving plate may be recessed towards the side near the first heat exchanger to form a first recess on the side of the first water receiving plate away from the first heat exchanger and a first supporting rib on the side of the first water receiving plate near the first heat exchanger.

[0419] In some embodiments, referring to FIG104, the heat exchanger cavity plate may include a first support plate 101431. The first support plate is located on the side of the first water receiving plate away from the first heat exchanger. In some embodiments, the first support plate may include an inner liner first support surface located on its top. In some embodiments, referring to FIG104, the first support plate may be provided with a second support rib 1014311. The first water receiving plate may be disposed on the first support plate. The second support rib may be located within a first recess. In some embodiments, the first support plate may include an inner liner first support surface located on its top. The inner liner first support surface may be inclined along the length direction of the housing. In some embodiments, the second support rib may include a second support rib surface. The first support plate may include a second support rib surface. The second support rib surface may be connected to the inner liner first support surface.

[0420] In some embodiments, referring to FIG104, the water receiving tray may include a second water receiving plate 8104. The second water receiving plate 8104 has a second water receiving surface 81012 located at its top. There may be a plurality of second water receiving surfaces. There may be a plurality of second water receiving plates. In some embodiments, the second water receiving plate may include a second front water receiving plate 81041. The second water receiving plate may include a second rear water receiving plate 81042. The second front water receiving plate may be disposed in front of the second rear water receiving plate. A first water receiving plate may be located between the second front water receiving plate and the second rear water receiving plate. The second front water receiving plate may have a second front water receiving surface located at its top. The second rear water receiving plate has a second rear water receiving surface located at its top. The first water receiving surface may be located between the second front water receiving surface and the second rear water receiving surface. Along the length direction of the tank body, the second front water receiving surface and the second rear water receiving surface are inclined. Along the length direction of the tank body, the inclination direction of the second front water receiving surface and the second rear water receiving surface is the same as the inclination direction of the first water receiving surface. Along the front-to-back direction of the tank, the second front water inlet and the second rear water inlet are inclined, with the inclination direction of the second front water inlet opposite to that of the second rear water inlet. The end of the second front water inlet closest to the second rear water inlet is the bottom end of the second front water inlet, and the end of the second rear water inlet closest to the second front water inlet is the bottom end of the second rear water inlet. In some embodiments, the second front water inlet plate 81041 may be located in front of the first water inlet plate. The second rear water inlet plate 81042 may be located behind the first water inlet plate.

[0421] In some embodiments, referring to FIG112, the heat exchanger cavity plate may include a second support plate 101432. There may be multiple second support plates. The top of the second support plate may have an inner liner second support surface 101232. In some embodiments, the second support plate may include a second front support plate 1014321. The second front support plate 1014321 may be located in front of the first support plate. The second front support plate may be located below the second front water receiving plate. The second front support plate has an inner liner second front support surface located on its top. In some embodiments, the second support plate may include a second rear support plate 1014322. The second rear support plate may be located behind the first support plate. The second rear support plate may be located below the second rear water receiving plate. The second rear support plate may have an inner liner second rear support surface located on its top. In some embodiments, referring to FIG103, the water receiving tray may include a fourth water receiving plate 8105. The fourth water receiving plate may be connected to the first water receiving plate. Along the length of the housing, the fourth water receiving plate may be disposed on one side of the first water receiving plate. Along the length of the housing, a fourth water receiving plate can be connected to the top of the first water receiving surface. In some embodiments, the fourth water receiving plate may have a fourth water receiving surface 81051 located at its top. Along the length of the housing, the fourth water receiving surface is inclined. Along the front-rear direction of the housing, the fourth water receiving surface is horizontal. In some embodiments, a heat exchanger end plate at one end of the width direction of the first heat exchanger may be disposed on the fourth water receiving surface.

[0422] In some embodiments, referring to FIG103, a third support rib 81043 is provided on the second front water receiving plate. A third support rib 81043 is provided on the second rear water receiving plate. The heat exchanger end plate at the other end of the width direction of the first heat exchanger may be provided on the third support rib. In some embodiments, referring to FIG103, a fourth support rib 80144 is provided on the second water receiving plate. The fourth support rib is provided at the top of the second water receiving plate. The fourth support rib is provided on the side of the first heat exchanger away from the fan. The top of the fourth support rib is higher than the bottom of the first heat exchanger. The fourth support rib is used to prevent air from flowing away from the bottom of the first heat exchanger without passing through the first heat exchanger, thereby improving the heat exchange efficiency of the first heat exchanger. In some embodiments, referring to FIG103, the water receiving tray may include a fifth water receiving plate 8106. The fifth water receiving plate may be located on the side of the first water receiving plate away from the fourth water receiving plate. The fifth water receiving plate may be connected to the first water receiving plate. Along the length direction of the housing, the fifth water receiving plate may be connected to the bottom of the first water receiving surface.

[0423] The fifth water receiving plate may include a fifth water receiving surface disposed on its top. The fifth water receiving surface is inclined along the length of the tank. The inclination angle of the fifth water receiving surface is greater than the inclination angle of the first water receiving surface along the length of the tank. The fifth water receiving plate may be located between the second front water receiving plate and the second rear water receiving plate. The front end of the fifth water receiving plate may be connected to the second front water receiving plate. The rear end of the fifth water receiving plate may be connected to the second rear water receiving plate.

[0424] In some embodiments, referring to FIG112, the heat exchanger cavity plate may include a third support plate 101433. The third support plate may be located below the fifth water receiving plate. The third support plate may have a third support surface located on its top. The third support surface may be inclined along the length direction of the housing. In some embodiments, referring to FIG103, the water receiving tray may include a sixth water receiving plate 8107. The sixth water receiving plate may be located on the side of the fifth water receiving plate away from the first water receiving plate. The sixth water receiving plate may be connected to the fifth water receiving plate. The sixth water receiving plate is inclined along the length direction of the housing. The sixth water receiving plate may be located between the second front water receiving plate and the second rear water receiving plate. The front end of the sixth water receiving plate may be connected to the second front water receiving plate. The rear end of the sixth water receiving plate may be connected to the second rear water receiving plate. In some embodiments, a section of the second front water receiving plate near the compressor cavity may extend rearward and be located on the side of the first water receiving plate near the compressor cavity. In some embodiments, a section of the second rear water receiving plate near the compressor cavity may extend forward and be located on the side of the first water receiving plate near the compressor cavity.

[0425] In some embodiments, referring to FIG103, the water receiving tray may include a seventh water receiving plate 8108. The seventh water receiving plate may be located on the side of the sixth water receiving plate away from the fifth water receiving plate. The seventh water receiving plate may be connected to the sixth water receiving plate. Along the length direction of the housing, the seventh water receiving plate is located on the side of the bottom end of the second front water receiving surface and the second rear water receiving surface away from their top ends. The seventh water receiving plate may be connected to the bottom ends of the second front water receiving plate and the second rear water receiving plate. Referring to FIG103, the seventh water receiving plate has a seventh water receiving surface 81081 located at its top. Along the length direction of the housing, the seventh water receiving surface is inclined and the inclination direction is opposite to the inclination direction of the first water receiving surface, which enables the water receiving tray to have a lower position, facilitating water collection. The drain hole of the water receiving tray may be provided on the seventh water receiving plate. In some embodiments, referring to FIG112, the heat exchanger cavity plate may include a fourth support plate 101434. The fourth support plate may be located below the sixth water receiving plate. The fourth support plate has a fourth support surface located at its top end. Along the length of the housing, the fourth support surface may be inclined. In some embodiments, referring to FIG112, the heat exchanger cavity plate may include a fifth support plate 101435. The fifth support plate may be located below the seventh water receiving plate. The fifth support plate has a fifth support surface 1014351 at its top. Along the length of the housing, the fifth support surface may be inclined. The inclination direction of the fifth support surface is the same as the inclination direction of the seventh water receiving surface. In some embodiments, one end of the drain channel communicating with the inner space of the inner liner is formed on the fifth support surface.

[0426] In some embodiments, referring to FIG88, the freezer may include a mounting box 400. The mounting box and the inner liner define a first heat exchanger cavity. In some embodiments, the mounting box may include a first mounting box connecting plate. The first mounting box connecting plate may be located above the first heat exchanger. The mounting box may include a second mounting box connecting plate. The second mounting box connecting plate may be located on the side of the first heat exchanger cavity away from the compressor cavity. In some embodiments, referring to FIG90, the freezer may include a heat insulation member 402. The heat insulation member 402 is located inside the first heat exchanger cavity. The mounting box may cover the outside of the heat insulation member. In some embodiments, referring to FIG92, the inner liner may include a first inner liner sidewall 101211. The first inner liner sidewall 101211 may be located on the side of the inner liner. The first inner liner sidewall may be located on the rear side of the inner liner. The inner liner may include a second inner liner sidewall 101212. The second inner liner sidewall may be located on the side wall of the inner liner. The second inner liner sidewall may be located on the front side of the inner liner. In the front-rear direction of the freezer body, the first inner liner sidewall and the second inner liner sidewall are disposed opposite each other. In some embodiments, multiple sets of air outlets may be provided. Multiple sets of air return outlets may be provided. Multiple sets of air outlets may be provided on the second sidewall of the inner liner. Multiple sets of air return outlets may be provided on the first sidewall of the inner liner. The multiple sets of air outlets can be used to deliver air processed by the first heat exchanger to the receiving cavity of the housing.

[0427] Multiple sets of return air vents can be used to return air from the housing cavity of the refrigerator to the first heat exchanger cavity, where it is reprocessed by the first heat exchanger to form an air circulation system for the refrigerator. In this application, multiple sets of air outlets on the second sidewall of the inner liner may include a first air outlet 601. The first air outlet 601 may be located near the upper edge of the second sidewall of the inner liner. In some embodiments, the first air outlet may include multiple air outlet openings. The multiple air outlet openings of the first air outlet are arranged along one side of the length direction of the refrigerator. In some embodiments, the first air outlet may include multiple layers of air outlets. The multiple layers of air outlets of the first air outlet may be arranged sequentially in the vertical airflow direction. The openings of each layer of air outlets may be arranged sequentially along the length direction of the refrigerator. In some embodiments, multiple sets of air outlets on the second sidewall of the inner liner may include a second air outlet 602. The second air outlet may be located below the first air outlet. In the vertical direction, the second air outlet may be located in the middle of the second sidewall of the inner liner. In some embodiments, the second air outlet may include multiple air outlet openings. The multiple air outlet openings of the second air outlet are arranged along one side of the length direction of the refrigerator. In some embodiments, the multiple sets of air outlets on the second sidewall of the inner liner may include a third air outlet 603. The third air outlet may be located below the second air outlet. The third air outlet may be disposed at the lower edge of the second sidewall of the inner liner. In some embodiments, the multiple sets of air outlets on the second sidewall of the inner liner may include a fourth air outlet 604. The fourth air outlet may be located below the first air outlet. The fourth air outlet is located above the compressor cavity. In some embodiments, the number of air outlet openings of the second air outlet is less than the number of air outlet openings of the first air outlet. In some embodiments, the number of air outlet openings of the third air outlet may be one. In some embodiments, the number of air outlet openings of the fourth air outlet may be one. In some embodiments, the multiple sets of return air outlets may include a first return air outlet 4011. In the vertical direction, the first return air outlet 4011 may be located in the middle of the first sidewall of the inner liner. The first return air outlet 4011 may include multiple return air openings. The multiple return air openings of the first return air outlet 4011 may be arranged along the length direction of the housing. In some embodiments, the multiple sets of return air vents may include a second return air vent 4012. The second return air vent 4012 may be located below the first return air vent. The second return air vent 4012 may be located above the lower edge of the first sidewall of the inner liner. In some embodiments, the freezer may include a ventilation shell 500. The ventilation shell may be disposed within the inner liner. The ventilation shell is used to form an air outlet duct. The ventilation shell and the inner liner may define an air outlet duct. The air outlet duct may communicate with a first heat exchanger cavity. In some embodiments, the ventilation shell is connected to the first sidewall or the second sidewall of the inner liner.

[0428] In some embodiments, referring to FIG87, a first air outlet 601 may be formed on the ventilation housing. The first air outlet may be located at the bottom of the ventilation housing.

[0429] Along the length of the housing, the first air outlet is located on one side of the fan. Along the length of the housing, the first air outlet is located on the side of the fan away from the compressor chamber. In some embodiments, referring to FIG87, a second air outlet 602 may be formed on the ventilation housing. In the vertical direction, the second air outlet is located above the mounting housing. In some embodiments, a third air outlet 603 may be formed on the ventilation housing. In the vertical direction, referring to FIG87, the third air outlet is located above the mounting housing. In some embodiments, the inner liner may include a third sidewall 101213. The third sidewall is located on the side of the inner liner. The inner liner may include a fourth sidewall 101214. The fourth sidewall is located on the side of the inner liner. The third and fourth sidewalls may be disposed opposite each other. In some embodiments, the compressor chamber is located below the third sidewall. In some embodiments, the second air outlet may be located on the side of the third air outlet away from the third sidewall. In some embodiments, the second air outlet may face the fourth sidewall. The third air outlet may face the third sidewall.

[0430] In some embodiments, referring to FIG87, a fourth air outlet 604 may be formed on the ventilation shell. The fourth air outlet may be located above the second and third air outlets. The fourth air outlet may be located between the second and third air outlets. The fourth air outlet may face the second sidewall of the inner liner. In some embodiments, the first return air outlet 4011 is located on the bottom plate of the first chamber. The second return air outlet 4012 may be located on the bottom plate of the second chamber. In some embodiments, referring to FIG114, the inner liner may include a first drainage section 1015. The first drainage section may be provided with a first drainage channel 10151. The first drainage channel may communicate with the first heat exchanger cavity.

[0431] In some embodiments, referring to FIG115, the bottom plate 820 may be disposed within the outer casing. The bottom plate 820 may be connected to the outer casing to form a compressor cavity 821. Referring to FIG116, the compressor 842 may be located within the compressor cavity 821. The bottom plate may be provided with a first through hole 8201 penetrating the bottom plate. In some embodiments, the drainage channel may include a first drainage channel. In some embodiments, the first drainage portion 1015 may be part of the inner liner, and the inner liner may be integrally formed. In some embodiments, the inner liner may include an inner liner body. The first drainage portion may be connected to the inner liner body. The first drainage portion may be integrally formed with the inner liner body. The first drainage portion and the inner liner body may be separate components.

[0432] In some embodiments, referring to FIG115, the freezer may include a second drainage section 822. One end of the second drainage section may extend through a first through hole in the bottom plate from the compressor cavity and connect to a first drainage section. The other end of the second drainage section may be located inside the compressor cavity. The connection between the second drainage section and the first drainage section is located outside the compressor cavity. A second drainage channel 8223 may be provided inside the second drainage section. The second drainage channel may communicate with the first drainage channel. By providing one end of the second drainage section to extend through the first through hole in the bottom plate from the compressor cavity and connect to the first drainage section, the inner liner does not need to be aligned with the first through hole in the bottom plate during installation, which facilitates the installation of the inner liner and avoids damage to the inner liner during installation. In some embodiments, the drainage channel may include a second drainage channel.

[0433] In some embodiments, referring to FIG116, the bottom plate may include a first bottom plate 8202. The first bottom plate may be disposed at the top of the compressor cavity. The bottom plate may include a second bottom plate 8203. The second bottom plate may be disposed at the side of the compressor cavity. The top end of the second bottom plate may be connected to the first bottom plate. The bottom plate, including the first bottom plate and the second bottom plate, facilitates the formation of the compressor cavity. A first through hole may be disposed on the second bottom plate. In some embodiments, referring to FIGS113-118, the first drain portion may include a first snap-fit ​​portion 10152. The second drain portion may include a second snap-fit ​​portion 8221. The first snap-fit ​​portion and the second snap-fit ​​portion snap together to facilitate the connection between the second drain portion and the inner liner. In some embodiments, referring to FIG117, the bottom plate may be provided with a first positioning portion 8204. The second drain portion may be provided with a second positioning portion 8222. The second positioning portion may be inserted into the first positioning portion so that the first snap-fit ​​portion and the second snap-fit ​​portion are opposite to and snap together. In some embodiments, the first positioning part may be a first positioning hole in the bottom plate that communicates with the first through hole in the bottom plate. The second positioning part may be a positioning plate. The positioning plate may be located inside the first positioning hole in the bottom plate.

[0434] In some embodiments, referring to Figures 117 and 118, the second drainage section may include a first baffle plate 8224. The first baffle plate may be disposed inside the compressor cavity. The first baffle plate may cover the first positioning hole and the first through hole of the bottom plate of the box, making the appearance more aesthetically pleasing and enhancing the strength of the second drainage section. In some embodiments, the first baffle plate is connected to the second positioning part. The first baffle plate may be located on the side of the second positioning part away from the second snap-fit ​​part. In some embodiments, referring to Figure 112, the inner liner includes a heat exchanger cavity plate located below the first heat exchanger cavity; the heat exchanger cavity plate may include a fifth support plate 101435. The fifth support plate may have a fifth support surface located at its top. The fifth support surface may be provided with an inner liner drainage hole 1017 that connects the first heat exchanger cavity and the first drainage channel for convenient drainage. In some embodiments, the fifth support surface is inclined along the length direction of the box body, and the bottom end of the fifth support surface is the end away from the compressor cavity for convenient water collection.

[0435] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0436] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A freezer, comprising: The box body has an opening at the top; The installation box is located on the inner bottom wall of the box body and is provided with a return air vent; The compressor is disposed in the housing; An evaporator, wherein the evaporator is disposed inside the mounting housing and connected to the compressor; and A ventilation shell is attached to the side wall of the housing and is connected to the mounting box; The internal space of the housing includes a first accommodating cavity, a second accommodating cavity, and a third accommodating cavity connected in sequence; the second accommodating cavity is located above the mounting box; the mounting box has a first air outlet on the side facing the first accommodating cavity; the ventilation shell has a second air outlet on the side facing the first accommodating cavity, and the second air outlet is located above the first air outlet; the ventilation shell has a third air outlet on the side facing the second accommodating cavity; and the ventilation shell has a fourth air outlet on the side facing the third accommodating cavity.

2. A freezer, comprising: The box body has an opening at the top; The installation box is located on the inner bottom wall of the box body and is provided with a return air vent; The compressor is disposed in the housing; An evaporator is disposed inside the mounting box and is connected to the compressor; A ventilation shell is attached to the side wall of the housing and is connected to the mounting box; The internal space of the housing includes a first accommodating cavity, a second accommodating cavity, and a third accommodating cavity connected in sequence; the second accommodating cavity is located above the mounting box; a first air outlet is provided on the side of the ventilation shell facing the first accommodating cavity; a second air outlet is provided on the side of the ventilation shell facing the first accommodating cavity, and the second air outlet is located above the first air outlet; a third air outlet is provided on the side of the ventilation shell facing the second accommodating cavity; and a fourth air outlet is provided on the side of the ventilation shell facing the third accommodating cavity.

3. The freezer according to claim 1 or 2, wherein, The plane containing the upper surface of the mounting box is defined as the reference plane. The reference plane divides the first receiving cavity. The area below the reference plane is the first chamber, and the area above the reference plane is the second chamber. The first air outlet faces the first chamber; The second air outlet faces the second chamber.

4. The freezer according to claim 3, wherein, The volumes of the first chamber, the second chamber, the second receiving cavity, and the third receiving cavity are V1, V2, X2, and X3, respectively; The air outlet cross-sectional areas of the first air outlet, the second air outlet, the third air outlet, and the fourth air outlet are S1, S2, S3, and S4, respectively. Where V1+V2+X2+X3=V20; S1+S2+S3+S4=S20; The condition (S1 / S20) / (V1 / V20)≥0.27 and (S1 / S20) / (V1 / V20)≤0.87 is satisfied.

5. The freezer according to claim 4, wherein, The condition (S2 / S20) / (V2 / V20)≥0.55 and (S2 / S20) / (V2 / V20)≤1.15 is satisfied.

6. The freezer according to claim 4, wherein, It satisfies (S3 / S20) / (X2 / V20)≥0.9 and (S3 / S20) / (X2 / V20)≤1.

93.

7. The freezer according to claim 4, wherein, It satisfies (S4 / S20) / (X3 / V20)≥0.97 and (S4 / S20) / (X3 / V20)≤1.

57.

8. The freezer according to claim 1 or 2 further includes a fan disposed within the ventilation housing.

9. The freezer according to claim 1 or 2, wherein, The inner bottom wall of the housing has an upward step, and the mounting box is attached to the side wall of the step; the first air outlet is away from the step; the third receiving cavity is located above the step.

10. The freezer according to claim 1 or 2, wherein, The second air outlet and the fourth air outlet are provided at intervals along the height of the housing; The air outlets of the second and fourth air outlets, which are far from the bottom wall of the housing, are inclined in the direction away from the bottom wall of the housing.

11. A freezer, comprising: The box body has an opening at the top; The installation box is located on the inner bottom wall of the box body and is provided with a return air vent; The compressor is disposed in the housing; An evaporator is disposed inside the mounting box and is connected to the compressor; A ventilation shell is attached to the inner wall of the housing and is connected to the mounting box; The enclosure includes a first receiving cavity, a second receiving cavity, and a third receiving cavity, with the first and third receiving cavities located on opposite sides of the mounting box. A third air outlet is provided on the vertical side wall of the ventilation shell, located above the mounting box. The third grille includes a first air guide plate, a second air guide plate, and a third air guide plate, which are respectively used to guide airflow to the first receiving cavity, the area above the mounting box, and the third receiving cavity.

12. A freezer, comprising: The box has an opening at the top, and its interior is divided into a first receiving cavity, a second receiving cavity, and a third receiving cavity along its length. The installation box is located on the inner bottom wall of the box body and is provided with a return air vent; The compressor is disposed in the housing; An evaporator is disposed inside the mounting box and is connected to the compressor; A ventilation shell is attached to the inner wall of the housing and is connected to the mounting box. A third air outlet is provided on the vertical side wall of the ventilation shell. The third grille includes a first air guide plate, a second air guide plate, and a third air guide plate, which are respectively used to guide airflow to the first accommodating cavity, the second accommodating cavity, and the third accommodating cavity.

13. The freezer according to claim 11 or 12, wherein, The third grille is disposed on the side of the ventilation housing facing the top of the mounting box; The first air guide grille is inclined from the side away from the ventilation shell toward the first receiving cavity.

14. The freezer according to claim 13, wherein, The second air guide grille is perpendicular to the side wall of the ventilation shell where the third grille is located.

15. The freezer according to claim 13, wherein, The third air guide plate approaches the third receiving cavity from the side away from the ventilation shell.

16. The freezer according to any one of claims 13, wherein, The third grille is arranged along the length of the box body.

17. The freezer according to claim 11 or 12, wherein, The section containing the first air guide plate is the first air guide section; the section containing the second air guide plate is the second air guide section; the section containing the third air guide plate is the third air guide section; the area of ​​the first air guide section is not less than 30% of the total area of ​​the third air outlet.

18. The freezer according to claim 17, wherein, The second air guide section accounts for 10% to 30% of the total area of ​​the third air outlet.

19. The freezer according to claim 17, wherein, The area of ​​the third air guide section is no more than 30% of the total area of ​​the third air outlet.

20. The freezer according to claim 11 or 12, wherein, The inner bottom wall of the box has an upward step, and the mounting box is attached to the side wall of the step.

21. A freezer, comprising: The box body has an opening at its top and includes an outer shell and an inner liner, with the inner liner disposed inside the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity. The door is used to open or close the opening of the box. A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet. A fan is located inside the inner liner and on one side in the front-to-back direction of the first heat exchanger. The fan rotates to cause the air in the receiving cavity to flow through the return air inlet to the cavity of the first heat exchanger to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the receiving cavity. A water receiving tray is located inside the inner tank and below the first heat exchanger; Wherein, the plane that is vertically set and perpendicular to the front-back direction of the box body is defined as the first plane; the plane where the bottom end of the first heat exchanger is located is the bottom surface of the heat exchanger; along the length direction of the box body, the bottom surface of the heat exchanger is inclined; the intersection line of the plane where the bottom surface of the heat exchanger is located and the first plane is the first intersection line; the angle between the first intersection line and the horizontal plane is the first angle α. The water receiving tray includes a water receiving bottom surface, which is located at the inner bottom of the water receiving tray. The water receiving bottom surface includes a first water receiving surface. Along the length direction of the tank, the first water receiving surface is inclined, and the inclination direction of the first water receiving surface is the same as the inclination direction of the bottom surface of the heat exchanger. The intersection line of the plane containing the first water receiving surface and the first plane is a second intersection line, and the angle between the second intersection line and the horizontal plane is a second angle β, where β>α.

22. The freezer according to claim 21, wherein, The bottom surface of the heat exchanger is horizontally positioned along the front-to-back direction of the housing.

23. The freezer according to claim 21 or 22, wherein, The water receiving tray has a drain hole for draining the condensate in the water receiving tray into the inner liner, and the lower end of the first water receiving surface is provided with the drain hole.

24. The freezer according to claim 21, wherein, The first included angle α is greater than the first parameter value, where the first parameter value is 2°, 4°, or 6°.

25. The freezer according to claim 21 or 24, wherein, The first included angle α is less than the value of the second parameter, which is 20°, 22°, or 24°.

26. The freezer according to claim 23, wherein, The inner liner has a drainage channel for draining condensate. The inner diameter of the smaller cross-sectional area of ​​the drainage channel is the first inner diameter. The drain hole of the water receiving tray has an inner contour on the inner surface of the water receiving tray. The maximum distance between any two points on the inner contour of the drain hole of the water receiving tray is less than the first inner diameter.

27. The freezer according to claim 23, wherein, The bottom surface for receiving water includes multiple second water-receiving surfaces, which are inclined along the front-rear direction of the tank.

28. The freezer according to claim 27, wherein, Along the length of the housing, the second water contact surface is inclined, and the inclination direction of the second water contact surface is the same as the inclination direction of the bottom surface of the heat exchanger. The intersection line of the plane where the second water contact surface is located and the first plane is the third intersection line, and the angle between the third intersection line and the horizontal plane is the third angle γ1, where γ1≥α.

29. The freezer according to claim 26, wherein, The water-receiving bottom surface includes a third water-receiving surface, which is connected to the bottom end of the first water-receiving surface and connected to the second water-receiving surface. The connection between the third water-receiving surface and the second water-receiving surface has a first boundary line, and the drain hole of the water-receiving tray is provided at the first boundary line.

30. A freezer includes: The box body has an opening at its top and includes an outer shell and an inner liner, with the inner liner disposed inside the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity. The door is used to open or close the opening of the box. A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet. A fan is disposed within the inner liner and on one side in the front-rear direction of the first heat exchanger. The fan rotates to cause air in the receiving cavity to flow through the return air inlet into the first heat exchanger cavity to exchange heat with the first heat exchanger. The air, after exchanging heat with the first heat exchanger, flows through the air outlet back into the receiving cavity. A water receiving tray is located inside the inner tank and below the first heat exchanger; Wherein, the plane that is vertically set and perpendicular to the front-back direction of the box body is defined as the first plane; the plane where the bottom end of the first heat exchanger is located is the bottom surface of the heat exchanger; along the length direction of the box body, the bottom surface of the heat exchanger is inclined; the intersection line of the plane where the bottom surface of the heat exchanger is located and the first plane is the first intersection line; the angle between the first intersection line and the horizontal plane is the first angle α. The water receiving tray includes a water receiving bottom surface, which is located at the inner bottom of the water receiving tray. The water receiving bottom surface includes a first water receiving surface. Along the length of the tank, the first water receiving surface is inclined, and the inclination direction of the first water receiving surface is the same as the inclination direction of the bottom surface of the heat exchanger. The intersection line between the plane containing the first water receiving surface and the first plane is a second intersection line, and the angle between the second intersection line and the horizontal plane is a second angle β, where β > α. The inner liner includes a first support surface located inside the inner liner. The first support surface is located below the first water receiving surface and is parallel to the first water receiving surface. The first support surface is in contact with the outer bottom surface of the water receiving tray.

31. A freezer, comprising: The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located within the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity. The door is used to open or close the opening of the box. The first heat exchanger is disposed within the first heat exchanger chamber. The accommodation chamber and the first heat exchanger chamber are connected through an air return opening, and the accommodation chamber and the first heat exchanger chamber are connected through an air outlet opening. A blower is disposed within the inner container and on one side in the front-back direction of the first heat exchanger. The rotation of the blower causes the air within the accommodation chamber to flow through the air return opening into the first heat exchanger chamber to exchange heat with the first heat exchanger, and the air after exchanging heat with the first heat exchanger flows through the air outlet opening into the accommodation chamber. An electric heating device includes a bottom heating pipe, and the bottom heating pipe is connected to the first heat exchanger and located at the bottom end of the first heat exchanger. And A water receiving tray is disposed within the inner container and below the first heat exchanger, and the first heat exchanger is disposed on the water receiving tray. The water receiving tray includes: a first water receiving plate, and the first water receiving plate includes a first support rib. The first support rib is disposed on the side of the first water receiving plate close to the first heat exchanger, and the first support rib contacts the bottom heating pipe or has a first gap G1.

32. The freezer according to claim 31, wherein, When the first support rib has a first gap G1 with the bottom heating pipe, 0 < G1 ≤ the thirteenth parameter value, and the thirteenth parameter value is 5 mm or 7.5 mm or 10 mm.

33. The freezer according to claim 31 or 32, wherein, The first heat exchanger contacts the first support rib or has a gap therebetween.

34. The freezer according to claim 31 or 32, wherein, The first support rib includes a first support rib support surface disposed at the top of the first support rib. The first support rib support surface contacts the bottom heating pipe or has a first gap G1, and along the length direction of the box body, the first support rib support surface is inclined.

35. The freezer according to claim 34, wherein, Along the front-back direction of the box body, the first support rib support surface is horizontally disposed.

36. The freezer according to claim 34, wherein, The first water receiving plate includes a plurality of first support ribs, and the plurality of first support ribs are spaced apart along the front-back direction of the box body.

37. The freezer according to claim 36, wherein, The first support rib support surfaces of the plurality of first support ribs are parallel or coplanar.

38. The freezer according to claim 34, wherein, The first support rib has a first support rib surface, and the first support rib surface includes the first support rib support surface; the first water receiving plate has a first water receiving surface and the first support rib surface, and the first water receiving surface and the first support rib surface are disposed at the top of the first water receiving plate; along the length direction of the box body, the first water receiving surface is inclined, and the inclination direction of the first water receiving surface is the same as the inclination direction of the first support rib support surface.

39. The freezer according to claim 31 or 32, wherein, The first heat exchanger includes: Fins, including bottom fins disposed at the bottom of the first heat exchanger; and A first refrigerant pipe penetrating through the fins; Wherein, at least part of the bottom ends of the bottom fins are provided with fin bottom clamping portions, and openings are provided at the bottom ends of the fin bottom clamping portions, and the bottom heating pipe is clamped within the fin bottom clamping portions through the bottom end openings of the fin bottom clamping portions.

40. A freezer, comprising: A box body, the height direction of the box body is from the bottom to the top of the box body, and a box body opening is provided at the top end of the box body; the box body includes an outer shell and an inner container, and the inner container is disposed within the outer shell; an accommodation chamber is provided within the box body; a first heat exchanger chamber is provided within the inner container; A door body for opening or closing the box body opening; A first heat exchanger is disposed within a first heat exchanger cavity, wherein the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet; the first heat exchanger is horizontally arranged along the front-rear direction of the housing, and inclinedly arranged along the length direction of the housing. A fan is provided inside the inner liner and on one side in the front-rear direction of the first heat exchanger. The fan rotates to cause the air in the receiving cavity to flow through the return air inlet to the cavity of the first heat exchanger to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet to the receiving cavity. An electric heating device includes a bottom heating tube connected to and located at the bottom end of the first heat exchanger; and A water receiving tray is provided inside the inner tank and located below the first heat exchanger, and the first heat exchanger is provided on the water receiving tray; The water receiving tray includes: a first water receiving plate, the first water receiving plate including a first supporting rib, the first supporting rib being disposed on the side of the first water receiving plate near the first heat exchanger, the first supporting rib being in contact with the bottom heating pipe or having a first gap G1.

41. A freezer, comprising: The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located inside the outer shell. The box body has a receiving cavity. The inner liner has a first heat exchanger cavity. The inner liner includes a first drainage section with a first drainage channel communicating with the first heat exchanger cavity. The door is used to open or close the opening of the box. A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet. A fan is located inside the inner liner and on one side of the first heat exchanger. The fan rotates to cause the air in the accommodating cavity to flow through the return air inlet to the first heat exchanger cavity to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the accommodating cavity. A bottom plate is disposed inside the outer shell and connected to the outer shell to form a compressor cavity. The bottom plate is provided with a first through hole penetrating the bottom plate. and The second drainage section has one end extending through the first through hole in the bottom plate of the housing and connecting to the first drainage section. The other end of the second drainage section is located inside the compressor cavity, and the connection between the second drainage section and the first drainage section is located outside the compressor cavity. The second drainage section has a second drainage channel inside, and the second drainage channel is connected to the first drainage channel.

42. The freezer according to claim 41, wherein, The bottom plate of the box includes: The first bottom plate is located at the top of the compressor cavity; and The second bottom plate is located on the side of the compressor cavity and the top of the second bottom plate is connected to the first bottom plate. The first through hole of the bottom plate of the box is provided on the second bottom plate of the box.

43. The freezer according to claim 42, wherein, The first drainage part includes a first snap-fit ​​part, and the second drainage part includes a second snap-fit ​​part, and the first snap-fit ​​part and the second snap-fit ​​part snap-fit ​​together.

44. The freezer according to claim 43, wherein, The bottom plate of the box is provided with a first positioning part, and the second drainage part is provided with a second positioning part. The second positioning part is inserted into the first positioning part so that the first snap-fit ​​part and the second snap-fit ​​part are opposite to and snap-fitted.

45. The freezer according to claim 44, wherein, The first positioning part is a first positioning hole of the bottom plate that communicates with the first through hole of the bottom plate, and the second positioning part is a positioning plate located inside the first positioning hole of the bottom plate.

46. ​​The freezer according to claim 44, wherein, The second drainage section includes: A first baffle plate is disposed inside the compressor cavity and blocks the first positioning hole and the first through hole of the bottom plate of the housing.

47. The freezer according to claim 46, wherein, The first shield is connected to the second positioning part and is located on the side of the second positioning part away from the second snap-fit ​​part.

48. The freezer according to claim 41, wherein, The inner liner includes a heat exchanger cavity plate located below the first heat exchanger cavity. The heat exchanger cavity plate includes a fifth support plate. The fifth support plate has a fifth support surface located at its top end. The fifth support surface is provided with an inner liner drain hole that connects the first heat exchanger cavity and the first drain channel.

49. The freezer according to claim 48, wherein, Along the length of the housing, the fifth support surface is inclined, and the bottom end of the fifth support surface is away from the compressor cavity.

50. A freezer, comprising: The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located inside the outer shell. The box body has a receiving cavity. The inner liner has a first heat exchanger cavity. The inner liner includes a first drainage section with a first drainage channel communicating with the first heat exchanger cavity. The door is used to open or close the opening of the box. A first heat exchanger is disposed within a first heat exchanger cavity. The receiving cavity is connected to the first heat exchanger cavity via a return air vent, and the receiving cavity is also connected to the first heat exchanger cavity via an air outlet. The first heat exchanger is inclined along the length of the housing. A fan is located inside the inner liner and on one side of the first heat exchanger. The fan rotates to cause the air in the accommodating cavity to flow through the return air inlet to the first heat exchanger cavity to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the accommodating cavity. A bottom plate is disposed inside the outer shell and connected to the outer shell to form a compressor cavity. The bottom plate is provided with a first through hole penetrating the bottom plate. and The second drainage section has one end extending through the first through hole in the bottom plate of the housing and connecting to the first drainage section. The other end of the second drainage section is located inside the compressor cavity, and the connection between the second drainage section and the first drainage section is located outside the compressor cavity. The second drainage section has a second drainage channel inside, and the second drainage channel is connected to the first drainage channel.

51. A freezer, comprising: The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located within the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity. The door is used to open or close the opening of the box. A first heat exchanger is disposed within a first heat exchanger cavity. The receiving cavity is connected to the first heat exchanger cavity through a return air vent, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet. Along the front-rear direction of the housing, the first heat exchanger is horizontally arranged, and the length direction of the first heat exchanger is parallel to the front-rear direction of the housing. Along the length direction of the housing, the first heat exchanger is inclined. A fan is disposed inside the inner liner and on one side in the front-rear direction of the first heat exchanger. The fan rotates to cause air in the receiving cavity to flow through the return air inlet into the first heat exchanger cavity to exchange heat with the first heat exchanger. The air, after exchanging heat with the first heat exchanger, flows through the air outlet back into the receiving cavity. A water receiving tray is disposed inside the inner tank, and the water receiving tray is located below the first heat exchanger. The water receiving tray has a water receiving tray drain hole for draining water.

52. The freezer according to claim 51, wherein, The first heat exchanger includes: The fins are arranged at an angle, with their thickness direction perpendicular to the length direction of the first heat exchanger and parallel to the width direction of the first heat exchanger; the fins are also arranged at an angle along the length direction of the housing.

53. The freezer according to claim 51, wherein, The inner liner includes: The inner liner bottom plate is located at the bottom of the inner liner, and the inner liner bottom plate includes a heat exchanger cavity plate located below the first heat exchanger. Along the length of the housing, the inner liner bottom plate includes an inner liner first bottom plate and a stepped plate located on both sides of the heat exchanger cavity plate; The inner liner first bottom plate includes a top surface of the inner liner first bottom plate disposed at the top of the inner liner first bottom plate, and the step plate includes a step top surface disposed at the top of the step plate; In the height direction of the box body, the top surface of the first bottom plate of the inner liner is lower than the top surface of the step; The distance between the lowest point of the top surface of the step and the highest point of the top surface of the first bottom plate of the inner liner in the height direction of the box body is the third distance L3; The fan includes a fan wheel. The distance between the center of the fan wheel and the highest point of the top surface of the first bottom plate of the inner liner in the height direction of the box body is the fourth distance L4. L4 / L3 ≥ the ninth parameter value and L4 / L3 ≤ the eighth parameter value. The eighth parameter value is 0.9 or 1 or 1.1, and the ninth parameter value is 0.2 or 0.3 or 0.

4.

54. The freezer according to claim 53, wherein, The distance between the highest point of the first heat exchanger and the highest point of the top surface of the first bottom plate of the inner tank in the direction of the height of the box is the fifth distance L5, L5 / L3≥eleventh parameter value and L5 / L3≤tenth parameter value, the tenth parameter value is 0.9 or 1 or 1.1, and the eleventh parameter value is 0.2 or 0.3 or 0.

4.

55. The freezer according to claim 51, further comprising: The mounting box is located inside the inner liner and defines the first heat exchanger cavity with the inner liner; and A ventilation shell is disposed inside the inner liner and defines an air outlet duct with the inner liner; The air outlet duct connects the air outlet and the first heat exchanger cavity; The fan is located inside the air outlet duct, and the fan includes a fan wheel; The ventilation housing includes a volute casing that surrounds the outer periphery of the impeller; The horizontal line where the center of the wind turbine is located is the first straight line. The first straight line intersects the inner wall surface of the volute casing and forms two intersection points. The two intersection points are located on both sides of the center of the wind turbine. The distance between the two intersection points is the sixth distance L6, the midpoint of the line connecting the two intersection points is the first point, the distance between the center of the fan and the first point is the seventh distance L7, L7 / L6 ≤ the twelfth parameter value, and the twelfth parameter value is 1 / 3, 1 / 4 or 3 / 8.

56. The freezer according to claim 52, wherein, The water receiving tray includes: The first water receiving plate includes a first water receiving surface disposed on its top; Along the length of the box, the first water receiving surface is inclined, and the inclination direction of the first water receiving surface is the same as the inclination direction of the first heat exchanger. Wherein, along the length direction of the box body, the drain hole of the water receiving tray is located at the bottom end of the first water receiving surface on the side away from the top end of the first water receiving surface.

57. The freezer according to claim 56, wherein, The top of the first water receiving plate is provided with a plurality of first support ribs, which are spaced apart along the front-rear direction of the box body.

58. The freezer according to claim 56, wherein, The water receiving tray includes a second front water receiving plate and a second rear water receiving plate, the second front water receiving plate is located in front of the second rear water receiving plate, and the first water receiving plate is located between the second front water receiving plate and the second rear water receiving plate. The second front water inlet plate has a second front water inlet surface located on its top, and the second rear water inlet plate has a second rear water inlet surface located on its top. Along the length of the tank, the second front water inlet and the second rear water inlet are inclined in the same direction as the first water inlet.

59. The freezer according to claim 57, wherein, The water receiving tray includes a seventh water receiving plate. Along the length of the box, the seventh water receiving plate is located on the side away from the top of the bottom of the second front water receiving surface and the second rear water receiving surface. The seventh water receiving plate has a seventh water receiving surface located at its top. Along the length of the tank, the seventh water-receiving surface is inclined in the opposite direction to the inclination of the first water-receiving surface.

60. A freezer, comprising: The box body has a height from its bottom to its top, and an opening at its top. The box body includes an outer shell and an inner liner, with the inner liner located within the outer shell. The box body has a receiving cavity, and the inner liner has a first heat exchanger cavity. The door is used to open or close the opening of the box. A first heat exchanger is disposed in the first heat exchanger cavity, the receiving cavity is connected to the first heat exchanger cavity through a return air port, and the receiving cavity is connected to the first heat exchanger cavity through an air outlet. A fan is located inside the inner liner and on one side of the first heat exchanger in the front-back direction. The fan's rotation axis is arranged along the front-back direction of the housing and parallel to the length direction of the first heat exchanger. The fan rotates to cause the air in the receiving cavity to flow through the return air inlet to the first heat exchanger cavity to exchange heat with the first heat exchanger. The air after exchanging heat with the first heat exchanger flows through the air outlet back into the receiving cavity. A water receiving tray is provided inside the inner tank, and the water receiving tray is located below the first heat exchanger. The water receiving tray has a water receiving tray drain hole for draining water. The first heat exchanger is horizontally arranged along the front-to-back direction of the housing, and inclined along the length direction of the housing.

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