Refrigerator

Abstract

The utility model relates to a refrigerator, which belongs to the technical field of refrigeration equipment and comprises a box body, a mounting box, a compressor, an evaporator, a return air inlet, a ventilation shell, a second air outlet, a third air outlet and a fourth air outlet. Wherein the top of the box body is opened; the mounting box is arranged on the inner bottom wall of the box body; the compressor is arranged in the box body; the evaporator is arranged in the mounting box and is connected with the compressor; the return air inlet is formed in the mounting box; the inner space of the box body is composed of a first containing cavity, a second containing cavity and a third containing cavity which are sequentially connected. The second accommodating cavity is positioned above the mounting box; the ventilation shell is attached to the side wall of the box body and communicates with the mounting box; the second air outlet is formed in the side, facing the first containing cavity, of the ventilation shell. The third air outlet is formed in the side, facing the second containing cavity, of the ventilation shell. The fourth air outlet is formed in the side, facing the third containing cavity, of the ventilation shell.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a refrigerator. Background Art

[0002] A freezer is a household or commercial appliance used to refrigerate or freeze food and items. It usually uses refrigeration technology to keep the temperature at a lower level to keep the food fresh and extend its shelf life.

[0003] In the prior art, a refrigerator comprises a box body, an evaporator is arranged inside the box body, an air duct is arranged inside the box body, and an air port connected to the air duct is opened on the inner side wall of the box body, so that cold air from the evaporator enters the box body through the air duct and the air port.

[0004] However, in order to improve the refrigeration effect in the refrigerator, air is usually discharged through multiple air vents to achieve the effect of air circulation. The refrigerator in the prior art is designed with multiple air ducts, each of which is provided with air vents so that the air vents are separated from each other and blow in different directions, thereby achieving air circulation. However, it is necessary to set up multiple air ducts in the refrigerator, which is costly. Utility Model Content

[0005] The utility model solves one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the present application aims to provide a refrigerator, which discharges air through a second air outlet, a third air outlet and a fourth air outlet, all of which are connected to the interior of a ventilation shell. Only one ventilation shell is required to realize air discharge from three air outlets, thereby achieving the effects of surrounding wind and circulating wind while saving costs, and improving the refrigeration capacity of the refrigerator.

[0007] In order to achieve the above object, the utility model provides a refrigerator, comprising:

[0008] A box body, wherein the top of the box body is open;

[0009] An installation box, the installation box is arranged on the inner bottom wall of the box body;

[0010] A compressor, wherein the compressor is arranged in the box;

[0011] an evaporator, the evaporator being arranged inside the installation box and connected to the compressor;

[0012] A return air inlet, the return air inlet being opened in the installation box;

[0013] The internal space of the box body is composed of a first accommodating chamber, a second accommodating chamber and a third accommodating chamber connected in sequence; the second accommodating chamber is located above the installation box;

[0014] A ventilation shell, the ventilation shell is attached to the side wall of the box body, and the ventilation shell is connected to the installation box;

[0015] a second air outlet, the second air outlet being disposed on a side of the ventilation shell facing the first accommodating cavity;

[0016] a third air outlet, the third air outlet being disposed on a side of the ventilation shell facing the second accommodating cavity;

[0017] A fourth air outlet is provided on a side of the ventilation shell facing the third accommodating cavity.

[0018] In the technical solution, air is discharged through the second air outlet, the third air outlet and the fourth air outlet, which are all connected to the inside of the ventilation shell. Only one ventilation shell is provided to realize the air outlet of the three air outlets, thereby achieving the effects of surrounding wind and circulating wind while saving costs, and improving the refrigeration capacity of the freezer.

[0019] In addition, the present application also provides a refrigerator, which includes:

[0020] A box body, wherein the top of the box body is open;

[0021] An installation box, the installation box is arranged on the inner bottom wall of the box body;

[0022] A compressor, wherein the compressor is arranged in the box;

[0023] an evaporator, the evaporator being arranged inside the installation box and connected to the compressor;

[0024] A return air inlet, the return air inlet being opened in the installation box;

[0025] The internal space of the box body is composed of a first accommodating chamber, a second accommodating chamber and a third accommodating chamber connected in sequence; the second accommodating chamber is located above the installation box;

[0026] A ventilation shell, the ventilation shell is attached to the side wall of the box body, and the ventilation shell is connected to the installation box;

[0027] a second air outlet, the second air outlet being disposed on the ventilation shell, and an air outlet direction of the second air outlet being toward the first accommodating cavity;

[0028] a third air outlet, the third air outlet being disposed on the ventilation shell, and the air outlet direction of the third air outlet being toward the second accommodating cavity;

[0029] A fourth air outlet, wherein the fourth air outlet is disposed on the ventilation shell, and an air outlet direction of the fourth air outlet is toward the third accommodating cavity.

[0030] In the technical solution, air is discharged through the second air outlet, the third air outlet and the fourth air outlet, which are all connected to the inside of the ventilation shell. Only one ventilation shell is provided to realize the air outlet of the three air outlets, thereby achieving the effects of surrounding wind and circulating wind while saving costs, and improving the refrigeration capacity of the freezer.

[0031] In some embodiments of the present application, the plane where the upper surface of the installation box is located is defined as a first reference plane, the first reference plane divides the first accommodating cavity, the first chamber is below the first reference plane, and the second chamber is above the first reference plane;

[0032] The second air outlet faces the second chamber.

[0033] In some embodiments of the present application, the cross-sectional areas of the second air outlet, the third air outlet and the fourth air outlet are S2, S3 and S4 respectively;

[0034] Among them, S2+S3+S4=S10;

[0035] The capacities of the first chamber, the second chamber, the second accommodating chamber and the third accommodating chamber are V1, V2, X2 and X3 respectively;

[0036] Among them, V1+V2+X2+X3=V20;

[0037] Satisfies 0.65≤(S2 / S10) / (V2 / V20)≤1.25.

[0038] In the technical solution, the air outlet cross-sectional area of ​​the second air outlet is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0039] In some embodiments of the present application, (S2 / S10) / (V2 / V20)=0.95 is satisfied.

[0040] In the technical solution, the air outlet cross-sectional area of ​​the second air outlet is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0041] In some embodiments of the present application, 1.53≤(S3 / S10) / (X2 / V20)≤2.13 is satisfied.

[0042] In the technical solution, the air outlet cross-sectional area of ​​the third air outlet is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0043] In some embodiments of the present application, (S3 / S10) / (X2 / V20)=1.83 is satisfied.

[0044] In the technical solution, the air outlet cross-sectional area of ​​the third air outlet is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0045] In some embodiments of the present application, 1.13≤(S4 / S10) / (X3 / V20)≤1.73 is satisfied.

[0046] In the technical solution, the air outlet cross-sectional area of ​​the fourth air outlet is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0047] In some embodiments of the present application, (S4 / S10) / (X3 / V20)=1.43 is satisfied.

[0048] In the technical solution, the air outlet cross-sectional area of ​​the fourth air outlet is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0049] In some embodiments of the present application, a fan is provided in the ventilation shell.

[0050] In the technical solution, the cold air cooled by the evaporator is sent into the ventilation shell by the fan, and output through the second air outlet, the third air outlet and the fourth air outlet, thereby increasing the output speed of the cold air.

[0051] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a schematic diagram of the overall structure of a refrigerator according to an embodiment of the present application;

[0053] Figure 2 is a top view of a refrigerator according to an embodiment of the present application;

[0054] Figure 3 is a schematic diagram of the internal structure of a refrigerator according to an embodiment of the present application;

[0055] Figure 4 is a schematic diagram of the internal structure of a refrigerator according to an embodiment of the present application;

[0056] Figure 5 is a schematic diagram of the internal structure of a refrigerator according to an embodiment of the present application;

[0057] Figure 6 is a schematic diagram of the internal structure of a refrigerator according to an embodiment of the present application;

[0058] Figure 7 is a front view of the internal structure of the refrigerator according to the embodiment of the present application;

[0059] Figure 8 is a schematic diagram of the internal structure of a refrigerator according to an embodiment of the present application;

[0060] Fig. 9 is a right view of the internal structure of the refrigerator according to the embodiment of the present application;

[0061] Fig.10 It is a left view of the internal structure of the refrigerator according to the embodiment of the present application.

[0062] In the above figures: 100, box body; 1031, first chamber; 1032, second chamber; 104, second accommodating chamber; 105, third accommodating chamber; 400, installation box; 401, return air outlet; 500, ventilation shell; 602, second air outlet; 603, third air outlet; 604, fourth air outlet. DETAILED DESCRIPTION

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0066] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0068] In the present application, the refrigerator includes a box body, a door body and a refrigeration system: the box body is usually made of metal or plastic and has certain heat preservation performance. A refrigeration chamber or a freezer chamber is arranged inside the box body. The door body is used to open and close the refrigerator. The refrigeration system includes a compressor, a condenser, an evaporator and a refrigerant, etc. The heat inside the refrigerator is transferred to the outside, thereby achieving a cooling effect.

[0069] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0070] Please refer to all the drawings. In an illustrative embodiment of the refrigerator of the present invention, the refrigerator includes: a box body 100, an installation box 400, a compressor, an evaporator, a return air port 401, a ventilation shell 500, a second air outlet 602, a third air outlet 603 and a fourth air outlet 604; wherein the top of the box body 100 is open.

[0071] The installation box 400 is disposed on the inner bottom wall of the box body 100 .

[0072] The compressor is disposed in the housing 100 .

[0073] The evaporator is disposed inside the installation box 400, and the evaporator is connected to the compressor.

[0074] The return air port 401 is opened in the installation box 400 .

[0075] The internal space of the box body 100 is composed of a first accommodating chamber, a second accommodating chamber 104 and a third accommodating chamber 105 which are connected in sequence; the second accommodating chamber 104 is located above the installation box 400 .

[0076] The ventilation shell 500 is attached to the side wall of the box body 100 , and the ventilation shell 500 is communicated with the installation box 400 .

[0077] The second air outlet 602 is disposed on a side of the ventilation shell 500 facing the first accommodating cavity.

[0078] The third air outlet 603 is disposed on a side of the ventilation shell 500 facing the second accommodating cavity 104 .

[0079] The fourth air outlet 604 is disposed on a side of the ventilation shell 500 facing the third accommodating chamber 105 .

[0080] Through the above scheme, air is discharged through the second air outlet 602, the third air outlet 603 and the fourth air outlet 604, which are all connected to the inside of the ventilation shell 500. Only one ventilation shell 500 is provided to realize the air outlet of the three air outlets, and the effects of surrounding wind and circulating wind are achieved under the premise of saving costs, thereby improving the refrigeration capacity of the refrigerator.

[0081] Please refer to all the drawings. In addition, the present application also provides a refrigerator, which includes: a box body 100, an installation box 400, a compressor, an evaporator, a return air port 401, a ventilation shell 500, a second air outlet 602, a third air outlet 603 and a fourth air outlet 604. The top of the box body 100 is open.

[0082] The installation box 400 is disposed on the inner bottom wall of the box body 100 .

[0083] The compressor is disposed in the housing 100 .

[0084] The evaporator is disposed inside the installation box 400, and the evaporator is connected to the compressor.

[0085] The return air port 401 is opened in the installation box 400 .

[0086] The inner space of the box body 100 is composed of a first accommodating chamber, a second accommodating chamber 104 and a third accommodating chamber 105 which are connected in sequence. The second accommodating chamber 104 is located above the installation box 400 .

[0087] The ventilation shell 500 is attached to the side wall of the box body 100 , and the ventilation shell 500 is communicated with the installation box 400 .

[0088] The second air outlet 602 is disposed on the ventilation shell 500 , and the air outlet direction of the second air outlet 602 is toward the first accommodating cavity.

[0089] The third air outlet 603 is disposed on the ventilation shell 500 , and the air outlet direction of the third air outlet 603 is toward the second accommodating cavity 104 .

[0090] The fourth air outlet 604 is disposed on the ventilation shell 500 , and the air outlet direction of the fourth air outlet 604 is toward the third accommodating chamber 105 .

[0091] Through the above scheme, air is discharged through the second air outlet 602, the third air outlet 603 and the fourth air outlet 604, which are all connected to the inside of the ventilation shell 500. Only one ventilation shell 500 is provided to realize the air outlet of the three air outlets, and the effects of surrounding wind and circulating wind are achieved under the premise of saving costs, thereby improving the refrigeration capacity of the refrigerator.

[0092] In some embodiments, the box body 100 is rectangular, and the opening of the box body 100 is opened on the upper surface of the box body 100 .

[0093] In some embodiments, the length direction of the box body 100 is arranged horizontally.

[0094] In some embodiments, the first accommodating cavity, the second accommodating cavity 104 and the third accommodating cavity 105 are arranged along the length direction of the box body 100 .

[0095] In some embodiments, the two sides of the box body 100 in the width direction are the front side and the rear side of the box body 100 respectively.

[0096] In some embodiments, the plane where the upper surface of the installation box 400 is located is defined as a first reference plane, the first reference plane divides the first accommodation cavity, the first chamber 1031 is below the first reference plane, and the second chamber 1032 is above the first reference plane;

[0097] The second air outlet 602 faces the second chamber 1032 .

[0098] 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.

[0099] Among them, S2+S3+S4=S10.

[0100] The capacities of the first chamber 1031 , the second chamber 1032 , the second accommodating chamber 104 , and the third accommodating chamber 105 are V1 , V2 , X2 , and X3 , respectively;

[0101] Among them, V1+V2+X2+X3=V20.

[0102] In some embodiments, 0.65≤(S2 / S10) / (V2 / V20)≤1.25 is satisfied. The air outlet cross-sectional area of ​​the second air outlet 602 is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0103] In some embodiments, when 0.65=(S2 / S10) / (V2 / V20), the second air outlet 602 can meet the minimum air volume, ensuring that the surrounding wind effect can be achieved while the minimum air volume is achieved, and the cooling effect is guaranteed.

[0104] In some embodiments, when 1.25=(S2 / S10) / (V2 / V20), the air volume through the second air outlet 602 is relatively large, so as to achieve the surrounding wind effect and have the best cooling effect.

[0105] In some embodiments, (S2 / S10) / (V2 / V20)=0.95 is satisfied. The air outlet cross-sectional area of ​​the second air outlet 602 is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0106] In some embodiments, 1.53≤(S3 / S10) / (X2 / V20)≤2.13 is satisfied. The air outlet cross-sectional area of ​​the third air outlet 603 is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0107] In some embodiments, when 1.53=(S3 / S10) / (X2 / V20), the third air outlet 603 can meet the minimum air volume, ensuring that the surrounding wind effect can be achieved while the minimum air volume is achieved, and the cooling effect is guaranteed.

[0108] In some embodiments, when 2.13=(S3 / S10) / (X2 / V20), the air volume through the third air outlet 603 is relatively large, so as to achieve the surrounding wind effect and have the best cooling effect.

[0109] In some embodiments, (S3 / S10) / (X2 / V20)=1.83 is satisfied. The air outlet cross-sectional area of ​​the third air outlet 603 is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0110] In some embodiments, 1.13≤(S4 / S10) / (X3 / V20)≤1.73 is satisfied. The air outlet cross-sectional area of ​​the fourth air outlet 604 is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0111] In some embodiments, when 1.13=(S4 / S10) / (X3 / V20), the fourth air outlet 604 can meet the minimum air volume, ensuring that the surrounding wind effect can be achieved while the minimum air volume is achieved, and the cooling effect is guaranteed.

[0112] In some embodiments, when 1.73=(S4 / S10) / (X3 / V20), the air volume through the fourth air outlet 604 is relatively large, so as to achieve the surrounding wind effect and have the best cooling effect.

[0113] In some embodiments, (S4 / S10) / (X3 / V20)=1.43 is satisfied. The air outlet cross-sectional area of ​​the fourth air outlet 604 is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0114] In some embodiments, a fan is provided in the ventilation shell 500. The cold air cooled by the evaporator is sent into the ventilation shell 500 by the fan, and outputted through the second air outlet 602, the third air outlet 603 and the fourth air outlet 604, thereby increasing the output speed of the cold air.

[0115] In some embodiments, the first chamber 1031 may not be present in the box body 100 , that is, the interior of the box body 100 is composed of the second chamber 1032 , the second accommodating chamber 104 and the third accommodating chamber 105 .

[0116] In some embodiments, V2+X2+X3=V10.

[0117] 0.47≤(S2 / S10) / (V2 / V10)≤1.07 is satisfied. The air outlet cross-sectional area of ​​the second air outlet 602 is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0118] In some embodiments, when 0.47=(S2 / S10) / (V2 / V10), the second air outlet 602 can meet the minimum air volume, ensuring that the surrounding wind effect can be achieved while the minimum air volume is achieved, and the cooling effect is guaranteed.

[0119] In some embodiments, when 1.07=(S2 / S10) / (V2 / V10), the air volume through the second air outlet 602 is relatively large, so as to achieve the surrounding wind effect and have the best cooling effect.

[0120] 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 wind circulation effect and the surrounding wind effect are optimal.

[0121] In some embodiments, 1.18≤(S3 / S10) / (X2 / V10)≤1.78 is satisfied. The air outlet cross-sectional area of ​​the third air outlet 603 is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0122] In some embodiments, when 1.18=(S3 / S10) / (X2 / V10), the third air outlet 603 can meet the minimum air volume, ensuring that the surrounding wind effect can be achieved while the minimum air volume is achieved, and the cooling effect is guaranteed.

[0123] In some embodiments, when 1.78=(S3 / S10) / (X2 / V10), the air volume through the third air outlet 603 is relatively large, so as to achieve the surrounding wind effect and have the best cooling effect.

[0124] In some embodiments, (S3 / S10) / (X2 / V10)=1.48 is satisfied. The air outlet cross-sectional area of ​​the third air outlet 603 is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0125] In some embodiments, 0.86≤(S4 / S10) / (X3 / V10)≤1.46 is satisfied. The air outlet cross-sectional area of ​​the fourth air outlet 604 is limited. Under this size condition, the wind circulation effect and the surrounding wind effect are better.

[0126] In some embodiments, when 0.86=(S4 / S10) / (X3 / V10), the fourth air outlet 604 can meet the minimum air volume, ensuring that the surrounding wind effect can be achieved while the minimum air volume is achieved, and the cooling effect is guaranteed.

[0127] In some embodiments, when 1.46=(S4 / S10) / (X3 / V10), the air volume through the fourth air outlet 604 is relatively large, so as to achieve the surrounding wind effect and have the best cooling effect.

[0128] In some embodiments, (S4 / S10) / (X3 / V10)=1.16 is satisfied. The air outlet cross-sectional area of ​​the fourth air outlet 604 is limited, and under this size condition, the wind circulation effect and the surrounding wind effect are optimal.

[0129] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A refrigerator, characterized in that: It includes: A box body, wherein the top of the box body is open; An installation box, the installation box is arranged on the inner bottom wall of the box body; A compressor, wherein the compressor is arranged in the box; an evaporator, the evaporator being arranged inside the installation box and connected to the compressor; A return air inlet, the return air inlet being opened in the installation box; The internal space of the box body is composed of a first accommodating chamber, a second accommodating chamber and a third accommodating chamber connected in sequence; the second accommodating chamber is located above the installation box; A ventilation shell, the ventilation shell is attached to the side wall of the box body, and the ventilation shell is connected to the installation box; a second air outlet, the second air outlet being disposed on a side of the ventilation shell facing the first accommodating cavity; a third air outlet, the third air outlet being disposed on a side of the ventilation shell facing the second accommodating cavity; A fourth air outlet is provided on a side of the ventilation shell facing the third accommodating cavity.

2. A refrigerator, characterized in that: It includes: A box body, wherein the top of the box body is open; An installation box, the installation box is arranged on the inner bottom wall of the box body; A compressor, wherein the compressor is arranged in the box; an evaporator, the evaporator being arranged inside the installation box and connected to the compressor; A return air inlet, the return air inlet being opened in the installation box; The internal space of the box body is composed of a first accommodating chamber, a second accommodating chamber and a third accommodating chamber connected in sequence; the second accommodating chamber is located above the installation box; A ventilation shell, the ventilation shell is attached to the side wall of the box body, and the ventilation shell is connected to the installation box; a second air outlet, the second air outlet being disposed on the ventilation shell, and an air outlet direction of the second air outlet being toward the first accommodating cavity; a third air outlet, the third air outlet being disposed on the ventilation shell, and the air outlet direction of the third air outlet being toward the second accommodating cavity; A fourth air outlet, wherein the fourth air outlet is disposed on the ventilation shell, and an air outlet direction of the fourth air outlet is toward the third accommodating cavity.

3. The refrigerator according to claim 1 or 2, characterized in that: The plane where the upper surface of the installation box is located is defined as a first reference plane, the first reference plane divides the first accommodating cavity, the first chamber is below the first reference plane, and the second chamber is above the first reference plane; The second air outlet faces the second chamber.

4. The refrigerator according to claim 3, characterized in that: The cross-sectional areas of the second air outlet, the third air outlet and the fourth air outlet are S2, S3 and S4 respectively; Among them, S2+S3+S4=S10; The capacities of the first chamber, the second chamber, the second accommodating chamber and the third accommodating chamber are V1, V2, X2 and X3 respectively; Among them, V1+V2+X2+X3=V20; Satisfies 0.65≤(S2 / S10) / (V2 / V20)≤1.

25.

5. The refrigerator according to claim 4, characterized in that: Satisfies (S2 / S10) / (V2 / V20)=0.

95.

6. The refrigerator according to claim 4, characterized in that: Satisfies 1.53≤(S3 / S10) / (X2 / V20)≤2.

13.

7. The refrigerator according to claim 4, characterized in that: Satisfies (S3 / S10) / (X2 / V20)=1.

83.

8. The refrigerator according to claim 4, characterized in that: Satisfies 1.13≤(S4 / S10) / (X3 / V20)≤1.

73.

9. The refrigerator according to claim 4, characterized in that: Satisfies (S4 / S10) / (X3 / V20)=1.

43.

10. The refrigerator according to claim 1 or 2, characterized in that: A fan is arranged in the ventilation shell.

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