Refrigerator

Abstract

The utility model provides a freezer which comprises a freezer body and a door body, the freezer body comprises an inner container forming a containing chamber, a shell and a heat preservation cavity formed between the inner container and the shell, and the inner container is provided with a receding step protruding towards the containing chamber. The containing chamber is provided with a first chamber located above the receding step and a second chamber communicated with the first chamber, the door body is connected to the top of the cabinet body, the cabinet body comprises an evaporation cavity and an air duct assembly, and the air duct assembly comprises a first air path communicated with the first chamber and the second chamber and a second air path communicated with the first air path and the evaporation cavity; a certain angle is formed between the gas flowing direction in the first air path and the gas flowing direction in the second air path, the refrigerator comprises a first flow guide part, and the first flow guide part is configured to guide gas flowing between the second air path and the first chamber; air flow between the second air path and the first chamber is achieved through the first flow guide part, the first chamber can be effectively refrigerated, and the air cooling effect of the refrigerator is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment, and in particular to a freezer. Background Technology

[0002] Currently, based on their refrigeration principles, freezers are generally divided into direct-cooling freezers and air-cooling freezers. Direct-cooling freezers are prone to frost buildup during use, while air-cooling freezers are favored by users because they have the advantage of being frost-free.

[0003] In related technologies, to improve the air-cooling effect of freezers, multiple air ducts connected in sequence are used to achieve heat exchange between the evaporator chamber and various parts of the storage compartment. However, when heat exchange is carried out through multiple air ducts, the far-end air duct (e.g., the first air duct) is usually used to connect with the storage compartment. This results in the near-end air duct (e.g., the second air duct) (e.g., the first compartment) not receiving effective cooling, thus affecting the air-cooling effect of the freezer. Summary of the Invention

[0004] The purpose of this invention is to provide a freezer that improves air-cooling performance.

[0005] To achieve one of the above-mentioned objectives of this utility model, one embodiment of this utility model provides a freezer, comprising:

[0006] The cabinet includes an inner liner forming a receiving compartment, an outer shell, and an insulation cavity formed between the inner liner and the outer shell. The inner liner has a relief step protruding toward the receiving compartment. The receiving compartment has a first chamber located above the relief step and a second chamber communicating with the first chamber.

[0007] The door is connected to the top of the cabinet.

[0008] The cabinet includes an evaporation chamber and an air duct assembly. The air duct assembly includes a first air duct connecting the first chamber and the second chamber, and a second air duct connecting the first air duct and the evaporation chamber. The gas flow direction in the first air duct is set at a certain angle to the gas flow direction in the second air duct. The freezer includes a first guide component, which is configured to guide the gas flow between the second air duct and the first chamber.

[0009] As a further improvement of one embodiment of the present invention, the air duct assembly includes a first air duct forming a first air path, at least a portion of which is exposed in a first room.

[0010] As a further improvement of one embodiment of the present invention, the cabinet further includes an evaporation cover plate, which divides the second chamber into a first space and a second space. The evaporation chamber is located in the first space, and the air duct assembly includes a second air duct forming a second air path, at least a portion of which is exposed in the second space.

[0011] As a further improvement of one embodiment of the present invention, the evaporation cover plate and the clearance step are arranged in a horizontal direction, and the second air duct is located above the evaporation cover plate.

[0012] As a further improvement of one embodiment of the present invention, the freezer includes at least one first air guide, which is disposed on the side of the second air duct near the first chamber.

[0013] As a further improvement of one embodiment of the present invention, the freezer further includes a second air guide, which is configured to guide gas flow between the second air duct and the second space. The first air guide and the second air guide are disposed on opposite sides of the second air duct.

[0014] As a further improvement of one embodiment of the present invention, the air duct assembly includes a third air path connected to the evaporation chamber, the third air path being connected to the first chamber and / or the second space, and the gas flow direction in the second air path being set at a certain angle to the gas flow direction in the third air path.

[0015] As a further improvement of one embodiment of the present invention, the cabinet includes at least one air duct assembly, the air duct assembly being configured to guide airflow in the evaporation chamber into the first chamber and the second space.

[0016] Alternatively, the air duct assembly is configured to guide airflow from the first chamber and the second space into the evaporation chamber.

[0017] As a further improvement of one embodiment of the present invention, the cabinet includes two air duct components, which are symmetrically arranged on both sides of the evaporator cover.

[0018] As a further improvement of one embodiment of the present invention, the evaporation cover plate has a return air inlet that connects the evaporation chamber with the first chamber and / or the second space, and the return air inlet is located at the top of the evaporation cover plate.

[0019] As a further improvement of one embodiment of the present invention, the freezer includes a second air guide, wherein the first air guide and / or the second air guide are integrally formed with the air duct assembly, or are separately arranged from the air duct assembly.

[0020] Compared with the prior art, in the embodiment of this utility model, when the evaporation chamber exchanges cold energy with the interior of the receiving chamber through the first air path and the second air path, the first guide component is used to realize the gas flow between the second air path and the first chamber, thereby effectively cooling the first chamber and improving the air-cooling effect of the freezer. Attached Figure Description

[0021] Figure 1This is a three-dimensional schematic diagram of the freezer in some embodiments of this utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the cross-section of the freezer along the front-to-back direction in some embodiments of this utility model;

[0023] Figure 3 This is a plan view of the cross section of the freezer along the front-to-back direction in some embodiments of this utility model;

[0024] Figure 4 This is a three-dimensional schematic diagram of the cross-section of the freezer along the back-to-front direction in some embodiments of this utility model;

[0025] Figure 5 This is an exploded view of the inner liner and air duct assembly in some embodiments of this utility model;

[0026] Figure 6 This is a three-dimensional cross-sectional schematic diagram of the first flow guide in some embodiments of this utility model;

[0027] Figure 7 This is a plan view of the cross section of the freezer along the front-to-back direction in some other embodiments of this utility model;

[0028] Figure 8 This is an exploded view of the inner liner in some other embodiments of this utility model. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0030] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0031] It should be understood that terms such as "upper," "lower," "outer," and "inner," used herein to indicate spatial relative position, are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms "spatial relative position" may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0032] The device may be oriented in other ways (rotated 90 degrees or otherwise), and the spatial descriptions used herein shall be interpreted accordingly. For ease of description, in the present invention, when the freezer is in normal use, the direction facing the ground is downward, and the direction away from the ground is upward; the direction parallel to the ground is horizontal, and the direction perpendicular to the ground is vertical or up-down; the side closer to the user is the front side, and the side farther from the user is the rear side.

[0033] In the various illustrations of this utility model, for ease of illustration, some dimensions of the structure or part may be exaggerated relative to other structures or parts. Therefore, they are only used to illustrate the basic structure of the subject matter of this utility model.

[0034] refer to Figures 1 to 8 As shown, the embodiment of this utility model provides a freezer, which is configured as a horizontal air-cooled freezer.

[0035] like Figure 1 As shown, a freezer includes a cabinet body 1 and a door body, wherein the door body is connected to the top of the cabinet body 1.

[0036] In some embodiments, the door is pivotally connected to the top of the cabinet 1 to open or close the receiving compartment. The pivot hinge connecting the cabinet 1 and the door may be located on the rear side of the top of the cabinet 1.

[0037] In some embodiments, the freezer also includes a refrigeration system, which includes a compressor, a condenser, a capillary tube, an evaporator, etc. These components are connected by pipes to form a refrigeration circuit, and the cooling capacity generated by the evaporator can provide cooling for the storage compartment.

[0038] Reference Figure 2 As shown, the cabinet 1 includes an inner liner 11 forming a receiving compartment 111, an outer shell 12, and an insulation cavity 13 formed between the inner liner 11 and the outer shell 12.

[0039] In some embodiments, the accommodating chamber 111 is formed by an inner liner 11, which may be integrally molded, for example, by injection molding.

[0040] In other embodiments, the inner liner 11 may also be formed in parts, such as by splicing together components of the same or different materials.

[0041] In some embodiments, the containment chamber 111 is insulated by filling the insulation cavity 13 with foam material, thereby reducing heat exchange with the external environment.

[0042] The inner liner 11 has a clearance step 112 that protrudes toward the receiving compartment 111.

[0043] In some embodiments, the housing 12 has a compressor compartment 121 located below the clearance step 112, and the compressor and / or condenser are located within the compressor compartment 121.

[0044] Reference Figure 3 As shown, the accommodating chamber 111 has a first chamber 1111 located above the yielding step 112 and a second chamber 1112 communicating with the first chamber 1111.

[0045] In some embodiments, such as Figure 3 As shown, the first chamber 1111 is located directly above the yielding step 111 (i.e., the compressor chamber 121).

[0046] In some embodiments, the second chamber 1112 is located to the left of the first chamber 1111.

[0047] For example, the first chamber 1111 and the second chamber 1112 are located on both sides of the dashed line L1.

[0048] The cabinet 1 includes an evaporation chamber 14 and an air duct assembly 15.

[0049] In some embodiments, an evaporator and / or an evaporator fan 2 are provided in the evaporation chamber 14. The cold energy generated by the evaporator is radiated into the evaporation chamber 14 and can be transported to the receiving chamber 111 by the evaporator fan 2.

[0050] In some embodiments, the airflow generated by the evaporator fan 2 flows through the air duct assembly 15 to the receiving chamber 111 or back to the evaporation chamber 14.

[0051] The air duct assembly 15 includes a first air passage 151 connecting the first chamber 1111 and the second chamber 1112.

[0052] In some embodiments, the air duct assembly 15 can achieve airflow communication with the first chamber 1111 and the second chamber 1112 via the first air passage 151.

[0053] The air duct assembly 15 includes a second air duct 152 that connects the first air duct 151 and the evaporation chamber 14.

[0054] In some embodiments, the first air passage 151 and the evaporation chamber 14 are connected by a second air passage 152.

[0055] For example, the airflow in the evaporation chamber 14 flows into the first airflow 151 after passing through the second airflow 152, and then flows into the receiving chamber 111 through the first airflow 151. Alternatively, the airflow in the receiving chamber 111 flows into the second airflow 152 after passing through the first airflow 151, and then flows back into the evaporation chamber 14 through the second airflow 152.

[0056] The gas flow direction in the first air passage 151 is set at a certain angle to the gas flow direction in the second air passage 152.

[0057] In some embodiments, when gas flows between the first air passage 151 and the second air passage 152, the direction of gas flow changes to meet the airflow transfer requirements between the evaporation chamber 14 and the receiving chamber 111.

[0058] For example, the gas flow direction in the first air passage 151 is perpendicular to the gas flow direction in the second air passage 152.

[0059] For example, the gas flow direction in the first air passage 151 is parallel to the horizontal direction. The gas flow direction in the second air passage 152 is parallel to the vertical direction.

[0060] The freezer includes a first air guide 3. The first air guide 3 is integrally formed with the air duct assembly 15, or it is separately set from the air duct assembly 15.

[0061] In some embodiments, the first air guide 3 may be connected to the first air duct 153 and / or the second air duct 154.

[0062] For example, the first air guide 3 is integrally formed with the first air duct 153 and / or the second air duct 154. Alternatively, the first air guide 3 is separately provided with the first air duct 153 and / or the second air duct 154.

[0063] The first guide element 3 is configured to guide the gas flow between the second air passage 152 and the first chamber 1111.

[0064] In some embodiments, under the action of the evaporator fan 2, the first guide member 3 can direct the airflow in the second air passage 152 to the first chamber 1111. Alternatively, under the action of the evaporator fan 2, the first guide member 3 can direct the airflow in the first chamber 1111 to the second air passage 152.

[0065] When the evaporation chamber 14 exchanges cold energy with the interior of the receiving chamber 111 through the first air passage 151 and the second air passage 152, the first guide element 3 is used to realize the gas flow between the second air passage 152 and the first chamber 1111, thereby effectively cooling the first chamber 1111 and improving the air-cooling effect of the freezer.

[0066] The air duct assembly 15 includes a first air duct 153 forming a first air path 151.

[0067] In some embodiments, the first air passage 151 is formed inside the first air duct 153, that is, the first air duct 153 surrounds to form the first air passage 151, so that gas flows along the air passage.

[0068] At least a portion of the first air duct 153 is exposed within the first chamber 1111.

[0069] In some embodiments, by directly exposing the first air duct 153 to the first chamber 1111, the airflow in the first air duct 151 is directly connected to the first chamber 1111, thereby improving the cooling efficiency between the first air duct 151 and the first chamber 1111 and ensuring the cooling effect between the first chamber 1111 and the evaporation chamber 14.

[0070] In some embodiments, the first air duct 153 is located at the top of the first chamber 1111, which can improve the cooling effect of the first chamber 1111.

[0071] For example, when the first air duct 153 supplies air to the first chamber 1111, since the first air duct 153 is located at the top of the first chamber 1111, it can form an airflow barrier that blocks the external environment, preventing the loss of cold air in the first chamber 1111 when the user takes or puts down items.

[0072] The cabinet 1 also includes an evaporator cover 16.

[0073] In some embodiments, the evaporator cover 16 is connected to the inner liner 11, such as the bottom wall of the inner liner 11, which can increase the available space for accommodating the compartment 111.

[0074] In some embodiments, the evaporator cover 16 may be connected to the relief step 112 (e.g., connected to the left end of the relief step 112) to eliminate the gap between the evaporator cover 16 and the relief step 112, thereby increasing the available space of the accommodating chamber 111.

[0075] The evaporation cover 16 divides the second chamber 1112 into a first space 11121 and a second space 11122.

[0076] In some embodiments, the first space 11121 and the second space 11122 can be connected through the air duct assembly 15 to achieve mutual airflow exchange.

[0077] For example, such as Figure 3 The second space 11122 and the first chamber 1111 are located on opposite sides of the auxiliary line L1 along the horizontal direction.

[0078] The evaporation chamber 14 is located within the first space 11121.

[0079] In some embodiments, a thermal insulation foam is disposed in the first space 11121, and the thermal insulation foam and at least a portion of the bottom wall of the inner liner 11 enclose an evaporation chamber 14. The thermal insulation foam can reduce the heat exchange between the evaporation chamber 14 and the second space 11122 through the evaporation cover plate 16.

[0080] The air duct assembly 15 includes a second air duct 154 forming a second air passage 152.

[0081] In some embodiments, the second air passage 152 is formed inside the second air duct 154, that is, the second air duct 154 surrounds and forms the second air passage 152, so that gas flows along the air passage.

[0082] At least a portion of the second air duct 154 is exposed within the second space 11122.

[0083] In some embodiments, by directly exposing the second air duct 154 to the second space 11122, the airflow in the second air duct 152 is directly connected to the second space 11122, thereby improving the cooling efficiency between the second air duct 152 and the second space 11122 and ensuring the cooling effect between the second space 11122 and the evaporation chamber 14.

[0084] In some embodiments, the second air duct 154 is located within the second space 11122, thereby increasing the available space within the first chamber 1111.

[0085] In some embodiments, the second air duct 154 uses the first guide member 3 to exchange cooling with the first chamber 1111, ensuring uniform cooling throughout the first chamber 1111.

[0086] The evaporation cover plate 16 and the clearance step 112 are arranged in a horizontal direction.

[0087] In some embodiments, arranging the evaporator cover 16 and the clearance step 112 in a horizontal direction, compared to a scheme in which the evaporator cover 16 and the clearance step 112 are arranged in a vertical direction, can increase the available space in the first chamber 1111.

[0088] In other embodiments, the evaporation cover 16 and the clearance step 112 are arranged in a vertical direction.

[0089] In some embodiments, the evaporator cover 16 and the clearance step 112 are arranged adjacent to each other, which can eliminate the gap between the evaporator cover 16 and the clearance step 112 and increase the available space of the accommodating chamber 111.

[0090] For example, such as Figure 3 The clearance step 112 is located at the right end of the bottom of the inner liner 11, and the evaporator cover 16 is located at the left end of the clearance step 112.

[0091] In some embodiments, the upper surface of the evaporator cover 16 is flush with the upper surface of the clearance step 112. Thus, the evaporator cover 16 and the clearance step 112 together form a whole step-like structure inside the inner liner 11, which is convenient for placing items and makes reasonable use of the internal space of the accommodating chamber 111.

[0092] The second air duct 154 is located above the evaporator cover plate 16.

[0093] In some embodiments, the second air duct 154 is located above the evaporator cover plate 16, and the second air duct 154 and the first chamber 1111 are arranged in a horizontal direction, thereby shortening the distance between the second air duct 154 and the first chamber 1111 and improving the cooling efficiency between the second air duct 152 and the first chamber 1111.

[0094] For example, such as Figure 3 The second air duct 154 extends vertically and is located to the left of the first chamber 1111.

[0095] In some embodiments, the second air duct 154 is located below the first air duct 153. At this time, the first air duct 153, the second air duct 154, and the evaporator cover plate 16 (i.e., the evaporator chamber 14) are arranged in a vertical direction, making reasonable use of the internal space of the accommodating space 111 while ensuring uniform cooling in all parts of the accommodating space 111.

[0096] For example, when the air duct assembly 15 is configured as a supply air duct, the cold air in the evaporation chamber 14 flows from bottom to top, passing sequentially through the second air path 152 and the first air path 151, and is then delivered to the first chamber 1111 and the second space 11122. Similarly, when the air duct assembly 15 is configured as a return air duct, the air in the first chamber 1111 and the second space 11122 flows from top to bottom back to the evaporation chamber 14.

[0097] For example, the first air duct 153 is located at the top of the first chamber 1111 and the second space 11122, that is, at the top of the inner liner 11. Regardless of whether the air duct assembly 15 is configured as a supply air duct or a return air duct, it can prevent the loss of cold air when taking out or putting in items.

[0098] The freezer includes at least one first air guide 3.

[0099] In some embodiments, the number of first air guides 3 may be one or more. By increasing the number of first air guides 3, the cooling efficiency between the second air passage 152 and the first chamber 1111 can be improved.

[0100] The first guide element 3 is disposed on the side of the second air duct 154 near the first chamber 1111.

[0101] In some embodiments, since the first guide element 3 is disposed on the side of the second air duct 154 near the first chamber 1111, the first guide element 3 is closer to the first chamber 1111, which can improve the cooling efficiency between the second air duct 152 and the first chamber 1111.

[0102] In some embodiments, without the need to provide additional openings or air ducts on the inner wall (e.g., the first enclosure) of the first chamber 1111, the first guide member 3 can be used to achieve cooling between the second air passage 152 and the first chamber 1111, thereby maintaining the integrity of the inner wall of the first chamber 1111, improving the strength of the inner wall, and also facilitating the manufacturing of the inner liner 11.

[0103] In some embodiments, while the first air duct 153 located at the top of the first chamber 1111 is cooling the first chamber 1111, the first guide member 3 provided in the second air duct 154 is used to cool the space at the bottom of the first air duct 153, thereby improving the uniformity of cooling inside the first chamber 1111.

[0104] In some embodiments, considering that the left and right width of the first chamber 1111 is smaller than the left and right width of the second space 11122, compared with the scheme of setting other air ducts besides the first air duct 153 in the first chamber 1111, using part of the first air duct 153 and the first guide 3 together to exchange cooling with the first chamber 1111 can improve the strength of the inner wall of the first chamber 1111 and reduce the process difficulty.

[0105] The air duct assembly 15 includes a third air passage 155 connected to the evaporation chamber 14.

[0106] In some embodiments, one end of the third air passage 155 is directly connected to the evaporation chamber 14, that is, no other connecting air passage is provided between the third air passage 155 and the evaporation chamber 14.

[0107] The third ventilation duct 155 is connected to the first chamber 1111 and / or the second space 11122.

[0108] In some embodiments, the other end of the third air duct 155 may be connected to the first chamber 1111 alone, or to the second space 11122 alone, or to both the first chamber 1111 and the second space 11122 at the same time.

[0109] In some embodiments, the air duct assembly 15 includes a third air duct 156 forming a third air passage 155. The location of the third air duct 156 can be adjusted according to the different connection methods of the other end of the third air passage 155.

[0110] In some embodiments, considering that the volume of the second space 11122 is greater than the volume of the first chamber 1111, at least a portion of the third air duct 156 is exposed to the second space 11122, which can improve the cooling efficiency of the second space 11122.

[0111] In some embodiments, the third air duct 156 is located below the first air duct 153, which enables effective cooling in all parts of the second space 11122 and improves the uniformity of cooling in the second space 11122.

[0112] For example, such as Figure 3 The third air passage 155 is connected to the second space 11122 independently, and the third air duct 156 is located in the second space 11122 and is located below the second air duct 154.

[0113] The gas flow direction in the second air passage 152 is set at a certain angle to the gas flow direction in the third air passage 155.

[0114] In some embodiments, the gas flow direction in the second air passage 152 is perpendicular to the gas flow direction in the third air passage 155. At this time, the extension direction of the third air passage 156 is parallel to the extension direction of the first air passage 153, ensuring that all parts of the second space 11122 are effectively cooled, and improving the uniformity of cooling in the second space 11122.

[0115] For example, the extension direction of the third air duct 156 can be along the length of the cabinet 1, such as the left and right direction.

[0116] For example, the first air duct 153 and the second air duct 154 form a "T"-shaped structure. With the addition of the third air duct 156, a horizontally placed "h"-shaped structure is formed.

[0117] For example, the evaporator fan 2 is set in the first space 11121 or the evaporation chamber 14, the air inlet of the evaporator fan 2 is opposite to the evaporation chamber 14, and the air outlet of the evaporator fan 2 is connected to the second air duct 154 and the third air duct 156 respectively, so that the gas in the evaporation chamber 14 can flow to the second air duct 152 and the third air duct 155 through the evaporator fan 2.

[0118] In some embodiments, by providing corresponding guide ribs in the air ducts (e.g., the first air duct 153 and the second air duct 154), the airflow flowing from the second air duct 152 into the first air duct 151 can flow to the left and right sides of the first air duct 153 respectively, that is, to the first chamber 1111 and the second space 11122 respectively.

[0119] For example, by setting corresponding air outlet 5 or return air 6 on the air duct (e.g., first air duct 153, third air duct 156), the air outlet 5 or return air 6 is used to connect the ventilation path (e.g., first air path 151, third air path 155) and the accommodating room (e.g., first room 1111 or second space 11122).

[0120] In some embodiments, multiple air outlets 5 or return air components 6 are provided on the air ducts (e.g., the first air duct 153, the third air duct 156), and the multiple air outlets 5 or return air components 6 are arranged along the length of the cabinet, which improves the uniformity of cooling in all parts of the accommodating space 111.

[0121] For example, by setting openings in the air ducts (e.g., the first air duct 153, the third air duct 156) and installing corresponding air outlet components 5 or return air components 6, cooling exchange with the first chamber 111 and the second space 11122 can be achieved.

[0122] For example, the air outlet 5 is configured as an array of micro-perforated air guiding structures, such as a honeycomb perforated structure, to increase the resistance encountered when the air is discharged, so that the airflow is evenly blown into the receiving space 111. The return air component 6 is configured as a grid-like perforated structure to reduce the resistance encountered when the air is returned, so that the gas in the receiving space 111 can smoothly flow back into the corresponding air path.

[0123] The cabinet 1 includes at least one air duct assembly 15.

[0124] In some embodiments, the cabinet 1 may include only one air duct assembly 15. Alternatively, the cabinet 1 may include more than one air duct assembly 15.

[0125] Reference Figure 2 As shown, the air duct assembly 15 is configured to guide the airflow in the evaporation chamber 14 into the first chamber 1111 and the second space 11122.

[0126] In some embodiments, the air duct assembly 15 is configured as an air supply duct, so that under the action of the evaporation fan 2, the airflow in the evaporation chamber 14 flows into the first chamber 1111 and the second space 11122 through the air duct assembly 15.

[0127] For example, the cabinet 1 consists of only one air duct assembly 15, which serves as an air supply duct and is located on the rear side of the accommodating space 111 to achieve rear air supply.

[0128] Reference Figure 4 As shown, the air duct assembly 15 is configured to guide the airflow in the first chamber 1111 and the second space 11122 into the evaporation chamber 14.

[0129] In some embodiments, the air duct assembly 15 is configured as a return air duct, so that under the action of the evaporator fan 2, the airflow in the first chamber 1111 and the second space 11122 flows back into the evaporation chamber 14 through the air duct assembly 15.

[0130] For example, the cabinet 1 consists of only one air duct assembly 15, which serves as a return air duct and is located on the front side of the accommodating space 111 to achieve front return air.

[0131] The cabinet 1 includes two air duct assemblies 15.

[0132] In some embodiments, the two air duct components 15 can be configured with different air ducts, for example, one of them can be configured as a supply air duct and the other as a return air duct.

[0133] In other embodiments, the two air duct components 15 may be configured with the same air duct, for example, both may be configured as supply air ducts or both may be configured as return air ducts.

[0134] Reference Figure 5 As shown, two air duct assemblies 15 are symmetrically arranged on both sides of the evaporator cover plate 16.

[0135] In some embodiments, the two air duct components 15 are symmetrically arranged, which can improve the uniformity of cooling in all parts of the housing space 111 and ensure the cooling effect in all parts of the housing space 111.

[0136] In some embodiments, the two air duct assemblies 15 adopt the same structure, which can also simplify the manufacturing of the cabinet 1.

[0137] For example, the cabinet 1 consists of only two air duct assemblies 15. The air duct assembly 15, which serves as the supply air duct, is located on the rear side of the receiving space 111 to achieve rear air supply. The air duct assembly 15, which serves as the return air duct, is located on the front side of the receiving space 111 to achieve front return air.

[0138] The evaporation cover plate 16 has a return air vent 161 that connects the evaporation chamber 14 with the first chamber 1111 and / or the second space 11122.

[0139] In some embodiments, the return air vent 161 is connected to the evaporation chamber 14, and the return air vent 161 is also connected to the first chamber 1111 and / or the second space 11122, thereby realizing airflow exchange between the evaporation chamber 14 and the first chamber 1111 and / or the second space 11122.

[0140] Furthermore, the gas in the first chamber 1111 and / or the second space 11122 can flow directly back to the evaporator chamber 14 through the return air vent 161 without passing through the air duct assembly 15, thereby improving the cooling efficiency between the evaporator chamber 14 and the first chamber 1111 and / or the second space 11122.

[0141] For example, such as Figure 4 The return air vent 161 is exposed in the second space 11122 and can be directly connected to the second space 11122, which can improve the return air effect in the second space 11122.

[0142] The return air vent 161 is located at the top of the evaporator cover plate 16.

[0143] In some embodiments, since the clearance step 121 is flush with the top of the evaporator cover plate 161, when the return air vent 161 is located at the top of the evaporator cover plate 16, the return air vent 161 can be closer to the first chamber 1111, which is conducive to the formation of gas flow between the first chamber 1111 and the return air vent 161.

[0144] As a result, the airflow in the first chamber 1111 can more easily enter the return air inlet 161 and quickly flow back to the evaporation chamber 14 through the return air inlet 161.

[0145] In some embodiments, since the clearance step 121 is flush with the top of the evaporator cover 161, it is possible to ensure smoother return air above the stepped structure (i.e., the stepped structure formed by the clearance step 121 and the evaporator cover 16).

[0146] In some embodiments, the return air inlet 161 is located on the side of the evaporator cover plate 16 away from the evaporator fan 2, so that the gas flows into the evaporator chamber 14 from the return air inlet 161, flows through the entire evaporator chamber 14, and then flows to the evaporator fan 2, so that the gas flowing back into the evaporator chamber 14 from the return air inlet 161 can be fully cooled in the evaporator chamber 14.

[0147] For example, the evaporator cover 16 has a plurality of return air vents 161 arranged along the length direction of the cabinet 1 (e.g., left and right direction), which increases the amount of return air flowing back into the evaporator chamber 14 from the return air vents 161.

[0148] Reference Figure 6 As shown, the first air guide 3 has an air guide 31 exposed in the second air passage 152.

[0149] In some embodiments, the first air guide 3 is disposed on the air duct assembly 15 configured as an air supply duct. The first air guide 3 has an exhaust port 33, and the airflow in the second air passage 152 flows through the air guide 31 and then through the exhaust port 33 to the first chamber 1111.

[0150] The first guide element 3 has multiple wind deflectors 32 protruding toward the second air passage 152.

[0151] In some embodiments, the wind deflector 32 protrudes from the air guide 31. When the airflow in the second air passage 152 flows through the air guide 31, it is guided by the wind deflector 32 and flows towards the exhaust vent 33.

[0152] Multiple wind deflectors 32 protrude from the air guide 31 at a height that gradually increases along the direction of airflow within the second air passage 152, so as to guide the airflow within the second air passage 152 toward the first chamber 1111.

[0153] In some embodiments, such as Figure 6The airflow direction within the second air passage 152 is the direction indicated by arrow L3 in the figure. Along the direction of arrow L3, the height of multiple wind deflectors 32 protruding from the air guide 31 gradually increases, allowing the airflow within the second air passage 152 to flow smoothly along the direction of arrow L3, and after being guided by each wind deflector 32, it flows towards the exhaust vent 33.

[0154] Reference Figure 7 As shown, the freezer also includes a second air guide 4. The second air guide 4 is integrally formed with the air duct assembly 15, or it is separately set from the air duct assembly 15.

[0155] In some embodiments, the second air guide 4 may be connected to the first air duct 153 and / or the second air duct 154.

[0156] For example, the second air guide 4 is integrally formed with the first air duct 153 and / or the second air duct 154. Alternatively, the second air guide 4 is separately provided from the first air duct 153 and / or the second air duct 154.

[0157] The second guide element 4 is configured to guide the gas flow between the second air passage 152 and the second space 11122.

[0158] In some embodiments, under the action of the evaporator fan 2, the second guide member 4 enables the airflow in the second air passage 152 to flow to the second space 11122. Alternatively, under the action of the evaporator fan 2, the second guide member 4 enables the airflow in the second space 11122 to flow to the second air passage 152.

[0159] The first guide member 3 and the second guide member 4 are disposed on opposite sides of the second air duct 154.

[0160] In some embodiments, by providing a first guide member 3 and a second guide member 4 on the second air duct 154, the cooling needs of the first chamber 1111 and the second space 11122 can be simultaneously met by utilizing the second air duct 152.

[0161] In some embodiments, the first airflow guide 3 is closer to the first chamber 1111 and the second airflow guide 4 is closer to the second space 11122, thereby improving the cooling efficiency between the second airflow path 152 and the first chamber 1111 and the second space 11122.

[0162] For example, such as Figure 7 The first guide element 3 and the second guide element 4 are arranged horizontally on opposite sides of the second air duct 154.

[0163] The second chamber 1112 includes a first chamber 111221 located above the evaporation chamber 14 and a second chamber 111222 connected to the first chamber 111221.

[0164] In some embodiments, the first cavity 111221 is located above the evaporation cover plate 16. The first cavity 111221 and the second cavity 111222 together constitute the second space 11122.

[0165] In some embodiments, the first cavity 111221 is located between the first chamber 1111 and the second cavity 111222. For example, as shown... Figure 3 The first cavity 111221 and the second cavity 111222 are located on both sides of the dashed line L2.

[0166] Reference Figure 5 As shown, the inner liner 11 includes a first enclosure 113 that surrounds to form a first chamber 1111 and a second enclosure 114 that surrounds to form a second cavity 111222.

[0167] In some embodiments, the first enclosure 113 and the second enclosure 114 can be integrally formed. Alternatively, they can be separately formed, for example, spliced ​​together.

[0168] At least a portion of the first air duct 153 is formed by thermoforming a first enclosure 113 and / or a second enclosure 114.

[0169] In some embodiments, when the first enclosure 113 and / or the second enclosure 114 are manufactured by vacuum forming, the first air duct 153 is directly formed, that is, the first air duct 153 is manufactured by vacuum forming, thereby reducing manufacturing costs.

[0170] For example, the first enclosure 113 and / or the second enclosure 114 are made of plastic material.

[0171] Reference Figure 8 As shown, at least a portion of the first air duct 153 is formed by bending the first enclosure 113 and / or the second enclosure 114.

[0172] In some embodiments, when the first enclosure 113 and / or the second enclosure 114 are manufactured by bending process, the first air duct 153 is directly formed, that is, the first air duct 153 is manufactured by bending process, thereby improving the working strength of the inner liner 11 and the first air duct 153.

[0173] In some embodiments, the first enclosure 113 and / or the second enclosure 114 are made of metal materials, such as sheet metal, so that the inner liner 11 and the first air duct 153 are not easily damaged, for example, they are not easily deformed when exposed to the sun for a long time.

[0174] For example, the first air duct 153 includes an air duct groove 1532 and an air duct cover plate 1531 covering the opening of the air duct groove 1532. The air duct groove 1532 protrudes into the heat insulation cavity 13, which can increase the available space in the accommodating space 111.

[0175] In some embodiments, the air duct 1532 is formed on the corresponding first enclosure 113 and / or second enclosure 114 by bending or thermoforming.

[0176] Similarly, the second air duct 154 and / or the third air duct 156 can also be manufactured by vacuum forming or bending forming processes.

[0177] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0178] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A freezer, characterized in that, include: The cabinet (1) includes an inner liner (11) forming a receiving chamber (111), an outer shell (12), and an insulation cavity (13) formed between the inner liner (11) and the outer shell (12). The inner liner (11) has a relief step (112) protruding toward the receiving chamber (111). The receiving chamber (111) has a first chamber (1111) located above the relief step (112) and a second chamber (1112) communicating with the first chamber (1111). The door is connected to the top of the cabinet (1); The cabinet (1) includes an evaporation chamber (14) and an air duct assembly (15). The air duct assembly (15) includes a first air passage (151) connecting the first chamber (1111) and the second chamber (1112) and a second air passage (152) connecting the first air passage (151) and the evaporation chamber (14). The gas flow direction in the first air passage (151) and the gas flow direction in the second air passage (152) are set at a certain angle. The freezer includes a first guide (3). The first guide (3) is configured to guide the gas flow between the second air passage (152) and the first chamber (1111).

2. The freezer as described in claim 1, characterized in that, The air duct assembly (15) includes a first air duct (153) forming a first air path (151), at least a portion of which is exposed within the first chamber (1111).

3. The freezer as described in claim 1, characterized in that, The cabinet (1) also includes an evaporation cover (16) that divides the second chamber (1112) into a first space (11121) and a second space (11122). The evaporation chamber (14) is located in the first space (11121). The air duct assembly (15) includes a second air duct (154) that forms a second air path (152), at least a portion of which is exposed in the second space (11122).

4. The freezer as described in claim 3, characterized in that, The evaporator cover plate (16) and the clearance step (112) are arranged in a horizontal direction, and the second air duct (154) is located above the evaporator cover plate (16).

5. The freezer as described in claim 3, characterized in that, The freezer includes at least one first air guide (3), which is disposed on the side of the second air duct (154) near the first chamber (1111).

6. The freezer as described in claim 3, characterized in that, The freezer also includes a second air guide (4), which is configured to guide the flow of gas between the second air duct (152) and the second space (11122). The first air guide (3) and the second air guide (4) are located on opposite sides of the second air duct (154).

7. The freezer as described in claim 3, characterized in that, The air duct assembly (15) includes a third air duct (155) connected to the evaporation chamber (14), the third air duct (155) being connected to the first chamber (1111) and / or the second space (11122), and the gas flow direction in the second air duct (152) being set at a certain angle to the gas flow direction in the third air duct (155).

8. The freezer as described in claim 3, characterized in that, The cabinet (1) includes at least one air duct assembly (15) configured to guide airflow in the evaporation chamber (14) into the first chamber (1111) and the second space (11122); Alternatively, the air duct assembly (15) is configured to guide airflow from the first chamber (1111) and the second space (11122) into the evaporation chamber (14).

9. The freezer as described in claim 3, characterized in that, The cabinet (1) includes two air duct assemblies (15), which are symmetrically arranged on both sides of the evaporator cover plate (16).

10. The freezer as described in claim 3, characterized in that, The evaporation cover plate (16) has a return air vent (161) connecting the evaporation chamber (14) with the first chamber (1111) and / or the second space (11122), the return air vent (161) being located at the top of the evaporation cover plate (16).

11. The freezer as described in claim 1, characterized in that, The freezer includes a second air guide (4), wherein the first air guide (3) and / or the second air guide (4) are integrally formed with the air duct assembly (15), or are separately set from the air duct assembly (15).

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