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 first return air inlet, a fan, an air outlet and a bearing frame. Wherein the top of the box body is open. 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 connected with the compressor. The first return air inlet is formed in the top of the mounting box. And the fan is arranged in the box body. And the air outlet is formed in the box body. The bearing frame is arranged in the box body, the bearing frame comprises a horizontal section, the horizontal section is arranged above the mounting box, the horizontal section is parallel to the upper surface of the mounting box, and the horizontal section and the upper surface of the mounting box are arranged at an interval; under the action of the fan, air in the box body enters the mounting box through the first air return opening, and the air entering the mounting box is output through the air outlet after being subjected to heat exchange by the evaporator when passing through the evaporator.

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, the refrigerator comprises a box body, an installation box is arranged inside the box body, an evaporator is arranged in the installation box, and a return air outlet is opened on the installation box.

[0004] However, in the prior art, the return air vent is set above the mounting box. When goods are placed in the box, the goods will cover the return air vent, affecting the return air effect, thereby reducing the air volume exchanged by the evaporator, and then affecting the overall cooling effect of the refrigerator. In addition, placing goods directly on the mounting box may cause the mounting box to deform and damage the fins of the evaporator. 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, wherein the setting of the load-bearing frame allows the goods to be placed on the load-bearing frame when placed in the refrigerator, thereby preventing the goods from directly blocking the first return air outlet, ensuring smooth air circulation inside the refrigerator, and improving cooling efficiency. The setting of the load-bearing frame also prevents the goods from directly pressing on the installation box, protects key components such as the evaporator in the installation box, and prolongs the service life 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 first air return port, the first air return port being opened at the top of the installation box;

[0013] A fan, wherein the fan is arranged in the box;

[0014] An air outlet, the air outlet being arranged in the box;

[0015] A load-bearing frame, the load-bearing frame is arranged in the box body, the load-bearing frame includes a horizontal section, the horizontal section is arranged above the installation box, the horizontal section is parallel to the upper surface of the installation box, and the horizontal section and the upper surface of the installation box are arranged at a distance;

[0016] Under the action of the fan, the air in the box body enters the installation box through the first return air port. The air entering the installation box is heated by the evaporator when passing through the evaporator and then output through the air outlet.

[0017] In the technical solution, the setting of the load-bearing frame allows the goods to be placed on the load-bearing frame when placed in the refrigerator, thereby preventing the goods from directly blocking the first return air outlet, ensuring smooth air circulation inside the refrigerator and improving cooling efficiency. The setting of the load-bearing frame also prevents the goods from directly pressing on the installation box, protecting key components such as the evaporator in the installation box and extending the service life of the refrigerator.

[0018] In addition, the present application also provides a refrigerator, which includes:

[0019] A box body, wherein the top of the box body is open;

[0020] An installation box, the installation box is arranged on the inner bottom wall of the box body;

[0021] A compressor, wherein the compressor is arranged in the box;

[0022] an evaporator, the evaporator being arranged inside the installation box and connected to the compressor;

[0023] A first air return port, the first air return port being opened at the top of the installation box;

[0024] A fan, wherein the fan is arranged in the box;

[0025] An air outlet, the air outlet being arranged in the box;

[0026] A load-bearing frame, the load-bearing frame is arranged in the box body, the load-bearing frame includes a horizontal section, the horizontal section is arranged above the installation box, the horizontal section is parallel to the inner bottom wall of the box body, and the horizontal section is spaced apart from the upper surface of the installation box;

[0027] Under the action of the fan, the air in the box body enters the installation box through the first return air port. The air entering the installation box is heated by the evaporator when passing through the evaporator and then output through the air outlet.

[0028] In the technical solution, the setting of the load-bearing frame allows the goods to be placed on the load-bearing frame when placed in the refrigerator, thereby preventing the goods from directly blocking the first return air outlet, ensuring smooth air circulation inside the refrigerator and improving cooling efficiency. The setting of the load-bearing frame also prevents the goods from directly pressing on the installation box, protecting key components such as the evaporator in the installation box and extending the service life of the refrigerator.

[0029] In some embodiments of the present application, a second return air outlet is provided on the vertical side wall of the installation box.

[0030] In the technical solution, a second air return port is opened on the side wall of the installation box, which increases the air circulation path inside the refrigerator and further improves the cooling efficiency. The second air return port makes the air circulation inside the refrigerator more uniform, avoiding local overheating or overcooling.

[0031] In some embodiments of the present application, the load-bearing frame also includes a vertical section; the vertical section is connected to the horizontal section, the vertical section is arranged on the side of the installation box where the second return air outlet is opened, and the vertical section is spaced apart from the side of the installation box where the second return air outlet is opened.

[0032] In the technical solution, the vertical section of the load-bearing frame is spaced apart from one side of the second return air outlet, which not only protects the unobstructed second return air outlet, but also ensures the stable support of the load-bearing frame for the goods. The spaced apart setting of the vertical section and the second return air outlet prevents the return air outlet from being blocked by goods or condensed water, further enhancing the performance and reliability of the refrigerator.

[0033] In some embodiments of the present application, the horizontal segments and the vertical segments are arranged in a mesh shape.

[0034] In the technical solution, the horizontal and vertical sections are arranged in a mesh shape, which not only provides sufficient load-bearing capacity, but also increases the channels for air circulation, helping to improve the cooling effect.

[0035] In some embodiments of the present application, a clamping claw is provided on the upper surface of the installation box, and the clamping claw is used to fix the horizontal section.

[0036] In the technical solution, the claw design on the upper surface of the installation box facilitates the fixation of the horizontal section of the load-bearing frame, ensuring the stability and safety of the load-bearing frame. The claw fixing method is simple and fast, which improves the installation and maintenance efficiency of the refrigerator.

[0037] In some embodiments of the present application, a limiting block is provided on the inner bottom wall of the box body, and a side of the vertical section away from the second return air outlet is used to abut against the limiting block.

[0038] In the technical solution, the limit block design on the bottom wall of the box body enables the vertical section of the load-bearing frame to maintain a stable position when it abuts against the limit block, avoiding the shaking or displacement of the load-bearing frame. The limit block also ensures that the position of the load-bearing frame in the box body meets the design requirements, ensuring the performance and safety of the refrigerator.

[0039] In some embodiments of the present application, a step is formed upward at one end of the inner bottom wall of the box body, and a side of the installation box away from the second return air outlet is in contact with the side wall of the step.

[0040] In the technical solution, the step design formed on the bottom wall of the box body allows the installation box to be placed in line with the side wall of the step, improving the stability of the installation box. The step design also optimizes the spatial layout inside the refrigerator, making the structure of the refrigerator more compact and reasonable.

[0041] In some embodiments of the present application, the installation box includes a main box body and a cover plate; the top of the main box body is open, and the cover plate is detachably arranged on the top of the main box body, and the cover plate is used to close the opening of the main box body.

[0042] In the technical solution, the installation box adopts a detachable main box body and cover plate design, which facilitates the maintenance and replacement of the internal components of the installation box. The cover plate can close the opening of the main box body and protect the internal components of the installation box from external pollution and damage.

[0043] In some embodiments of the present application, the cover plate partially covers the upper surface of the step.

[0044] In the technical solution, the design of the cover plate partially covering the upper surface of the steps not only ensures the stability of the steps, but also optimizes the appearance structure of the refrigerator.

[0045] 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

[0046] Figure 1 is a schematic diagram of the overall structure of a refrigerator according to an embodiment of the present application;

[0047] Figure 2 is a schematic diagram of the overall structure of a refrigerator according to an embodiment of the present application;

[0048] Figure 3 is a top view of a refrigerator according to an embodiment of the present application;

[0049] Figure 4 is a side view of a refrigerator according to an embodiment of the present application;

[0050] Figure 5 yes Figure 4Sectional view in the AA direction;

[0051] Figure 6 It is a structural schematic diagram of a load-bearing frame and a cover plate portion of a refrigerator according to an embodiment of the present application;

[0052] Figure 7 It is a structural schematic diagram of a load-bearing frame and a cover plate portion of a refrigerator according to an embodiment of the present application;

[0053] Figure 8 It is a structural schematic diagram of a load-bearing frame and a cover plate portion of a refrigerator according to an embodiment of the present application;

[0054] Fig. 9 is a schematic structural diagram of a load-bearing frame of a refrigerator according to an embodiment of the present application;

[0055] Fig.10 It is a schematic structural diagram of the cover plate portion of the refrigerator according to an embodiment of the present application.

[0056] In the above figures: 100, box body; 200, installation box; 201, cover plate; 300, evaporator; 400, first return air outlet; 500, second return air outlet; 600, load-bearing frame; 601, horizontal section; 602, vertical section; 603, frame; 604, mesh member. DETAILED DESCRIPTION

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0064] 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 200, a compressor, an evaporator 300, a first return air port 400, a fan, an air outlet and a load-bearing frame 600; wherein the top of the box body 100 is open.

[0065] The installation box 200 is disposed on the inner bottom wall of the box body 100 .

[0066] The compressor is disposed in the housing 100 .

[0067] The evaporator 300 is disposed inside the installation box 200 , and the evaporator 300 is connected to the compressor.

[0068] The first air return port 400 is opened at the top of the installation box 200 .

[0069] The fan is disposed in the box 100 .

[0070] The air outlet is disposed in the box body 100 .

[0071] The load-bearing frame 600 is disposed in the box body 100, and the load-bearing frame 600 includes a horizontal section 601, which is disposed above the installation box 200, and the horizontal section 601 is parallel to the upper surface of the installation box 200, and the horizontal section 601 is spaced apart from the upper surface of the installation box 200;

[0072] Under the action of the fan, the air in the box body 100 enters the installation box 200 through the first return air port 400. The air entering the installation box 200 is heat-exchanged by the evaporator 300 when passing through the evaporator 300 and then output through the air outlet.

[0073] Through the above solution, the setting of the load-bearing frame 600 allows the goods to be placed on the load-bearing frame 600 when placed in the refrigerator, thereby preventing the goods from directly blocking the first return air vent 400, ensuring smooth air circulation inside the refrigerator, and improving cooling efficiency. The setting of the load-bearing frame 600 also prevents the goods from directly pressing on the installation box 200, protects key components such as the evaporator 300 in the installation box 200, and extends the service life of the refrigerator.

[0074] Please refer to all the drawings. In addition, the present application also provides a refrigerator, which includes: a box body 100, an installation box 200, a compressor, an evaporator 300, a first return air port 400, a fan, an air outlet and a load-bearing frame 600; wherein the top of the box body 100 is open.

[0075] The installation box 200 is disposed on the inner bottom wall of the box body 100 .

[0076] The compressor is disposed in the housing 100 .

[0077] The evaporator 300 is disposed inside the installation box 200 , and the evaporator 300 is connected to the compressor.

[0078] The first air return port 400 is opened at the top of the installation box 200 .

[0079] The fan is disposed in the box 100 .

[0080] The air outlet is disposed in the box body 100 .

[0081] The load-bearing frame 600 is disposed in the box body 100, and the load-bearing frame 600 includes a horizontal section 601, which is disposed above the installation box 200, parallel to the inner bottom wall of the box body 100, and spaced apart from the upper surface of the installation box 200;

[0082] Under the action of the fan, the air in the box body 100 enters the installation box 200 through the first return air port 400. The air entering the installation box 200 is heat-exchanged by the evaporator 300 when passing through the evaporator 300 and then output through the air outlet.

[0083] Through the above solution, the setting of the load-bearing frame 600 allows the goods to be placed on the load-bearing frame 600 when placed in the refrigerator, thereby preventing the goods from directly blocking the first return air vent 400, ensuring smooth air circulation inside the refrigerator, and improving cooling efficiency. The setting of the load-bearing frame 600 also prevents the goods from directly pressing on the installation box 200, protects key components such as the evaporator 300 in the installation box 200, and extends the service life of the refrigerator.

[0084] In some embodiments, the box body 100 includes an outer shell and an inner container disposed in the outer shell.

[0085] In some embodiments, the box body 100 is rectangular, the installation box 200 is arranged in a rectangular shape, and the length direction of the installation box 200 is perpendicular to the length direction of the box body 100 .

[0086] 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.

[0087] In some embodiments, the length direction of the installation box 200 is arranged horizontally.

[0088] In some embodiments, the two ends of the installation box 200 in the length direction are respectively connected to the two inner side walls in the width direction of the box body 100. That is, the two ends of the installation box 200 in the length direction are respectively close to the front side and the rear side of the box body 100.

[0089] In some embodiments, the inclined direction of the upper surface of the installation is the length direction of the upper surface of the installation box 200. The length direction of the upper surface of the installation box 200 is intersected with the length direction of the installation box 200.

[0090] In some embodiments, a plurality of first return air vents 400 are formed on the upper surface of the installation box 200 .

[0091] In some embodiments, the opening direction of the first return air outlet 400 is the return air direction of the first return air outlet 400 .

[0092] In some embodiments, the air return direction of the first air return port 400 is perpendicular to the upper surface of the installation box 200 .

[0093] In some embodiments, the return air direction of the first return air outlet 400 is arranged along the height direction of the cabinet 100 .

[0094] In some embodiments, the first air return port 400 is disposed on an end of the upper surface of the installation box 200 close to the front side of the box body 100 .

[0095] In some embodiments, the first air return port 400 is disposed on an upper surface of the installation box 200 at one end close to the rear side of the box body 100 .

[0096] In some embodiments, the vertical side wall of the installation box 200 is provided with a second air return vent 500. The second air return vent 500 is provided on the side wall of the installation box 200, which increases the air circulation path inside the refrigerator and further improves the cooling efficiency. The second air return vent 500 makes the air circulation inside the refrigerator more uniform, avoiding local overheating or overcooling.

[0097] In some embodiments, the second air return vent 500 is disposed on an end of the installation box 200 close to the front side of the box body 100 .

[0098] In some embodiments, the second air return port 500 is disposed on an end of the installation box 200 close to the rear side of the box body 100 .

[0099] In some embodiments, the load-bearing frame 600 further includes a vertical section 602. The vertical section 602 is connected to the horizontal section 601, and the vertical section 602 is disposed on a side of the installation box 200 where the second air return port 500 is opened.

[0100] In some embodiments, the vertical section 602 is spaced apart from the side of the installation box 200 where the second return air vent 500 is provided. The vertical section 602 of the load-bearing frame 600 is spaced apart from the side of the second return air vent 500, which not only protects the unobstructed second return air vent 500, but also ensures the stable support of the goods by the load-bearing frame 600. The spaced apart arrangement of the vertical section 602 and the second return air vent 500 prevents the return air vent from being blocked by goods or condensed water, further enhancing the performance and reliability of the refrigerator.

[0101] In some embodiments, the vertical section 602 and the horizontal section 601 are integrally formed, that is, the load-bearing frame 600 is integrally formed.

[0102] In some embodiments, the horizontal section 601 and the vertical section 602 are arranged in a mesh shape, which not only provides sufficient load-bearing capacity, but also increases the air circulation channel, which helps to improve the cooling effect.

[0103] In some embodiments, the horizontal segment 601 and the vertical segment 602 are arranged perpendicular to each other.

[0104] In some embodiments, the load-bearing frame 600 includes a frame 603 and a mesh member 604. The frame 603 forms a frame of the load-bearing frame 600, and the mesh member 604 is disposed in the frame to form the load-bearing frame 600.

[0105] In some embodiments, in the load-bearing frame 600 , the frame 603 is formed by bending metal rods.

[0106] In some embodiments, in the load-bearing frame 600 , the frame 603 is integrally injection molded.

[0107] In some embodiments, the upper surface of the installation box 200 is provided with a claw, which is used to fix the horizontal section 601. The claw design on the upper surface of the installation box 200 facilitates the fixation of the horizontal section 601 of the load-bearing frame 600, ensuring the stability and safety of the load-bearing frame 600. The claw fixing method is simple and fast, which improves the installation and maintenance efficiency of the refrigerator.

[0108] In some embodiments, the claws are used to clamp the frame 603. In particular, the portion of the frame 603 located above the installation box 200 is clamped.

[0109] In some embodiments, a plurality of claws are arranged at intervals along the length direction of the installation box 200 , thereby improving the connection strength between the load-bearing frame 600 and the installation box 200 .

[0110] In some embodiments, a limit block is provided on the inner bottom wall of the box 100, and the side of the vertical section 602 away from the second air return port 500 is used to abut against the limit block. The limit block design of the inner bottom wall of the box 100 enables the vertical section 602 of the load-bearing frame 600 to maintain a stable position when abutting against the limit block, thereby preventing the load-bearing frame 600 from shaking or shifting. The limit block also ensures that the position of the load-bearing frame 600 in the box 100 meets the design requirements, thereby ensuring the performance and safety of the refrigerator.

[0111] In some embodiments, a plurality of limit blocks are spaced apart along the length direction of the installation box 200 , so as to improve the installation stability of the load-bearing frame 600 in the box body 100 .

[0112] In some embodiments, a step is formed upward at one end of the inner bottom wall of the box body 100, and the side of the installation box 200 away from the second return air outlet 500 is in contact with the side wall of the step. The step design formed on the inner bottom wall of the box body 100 allows the installation box 200 to be placed in contact with the side wall of the step, thereby improving the stability of the installation box 200. The step design also optimizes the spatial layout inside the refrigerator, making the structure of the refrigerator more compact and reasonable.

[0113] In some embodiments, the step is located at one end of the length direction of the box body 100. The upper surface of the step is directly connected to the vertical side wall at one end of the length direction of the box body 100.

[0114] In some embodiments, the side of the installation box 200 close to the step is attached to the vertical side panel of the step.

[0115] In some embodiments, the second air return port 500 is opened on a side of the installation box 200 that is vertical and away from the step.

[0116] In some embodiments, the installation box 200 includes a main box body 100 and a cover plate 201 .

[0117] In some embodiments, the top of the main box 100 is open, and the cover plate 201 is detachably arranged on the top of the main box 100, and the cover plate 201 is used to close the opening of the main box 100. The installation box 200 adopts a detachable design of the main box 100 and the cover plate 201, which facilitates the maintenance and replacement of the internal components of the installation box 200. The cover plate 201 can close the opening of the main box 100, protecting the internal components of the installation box 200 from external pollution and damage.

[0118] In some embodiments, the cover plate 201 partially covers the upper surface of the step. The design of the cover plate 201 partially covering the upper surface of the step not only ensures the stability of the step, but also optimizes the appearance structure of the refrigerator.

[0119] In some embodiments, the claws are disposed on the upper surface of the cover plate 201 .

[0120] In some embodiments, the first air return port 400 is opened on the cover plate 201 .

[0121] In some embodiments, the second air return port 500 is opened on the cover plate 201 .

[0122] 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 first air return port, the first air return port being opened at the top of the installation box; A fan, wherein the fan is arranged in the box; An air outlet, the air outlet being arranged in the box; A load-bearing frame, the load-bearing frame is arranged in the box body, the load-bearing frame includes a horizontal section, the horizontal section is arranged above the installation box, the horizontal section is parallel to the upper surface of the installation box, and the horizontal section and the upper surface of the installation box are arranged at a distance; Under the action of the fan, the air in the box body enters the installation box through the first return air port. The air entering the installation box is heated by the evaporator when passing through the evaporator and then output through the air outlet.

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 first air return port, the first air return port being opened at the top of the installation box; A fan, wherein the fan is arranged in the box; An air outlet, the air outlet being arranged in the box; A load-bearing frame, the load-bearing frame is arranged in the box body, the load-bearing frame includes a horizontal section, the horizontal section is arranged above the installation box, the horizontal section is parallel to the inner bottom wall of the box body, and the horizontal section is spaced apart from the upper surface of the installation box; Under the action of the fan, the air in the box body enters the installation box through the first return air port. The air entering the installation box is heated by the evaporator when passing through the evaporator and then output through the air outlet.

3. The refrigerator according to claim 1 or 2, characterized in that: The vertical side wall of the installation box is provided with a second air return port.

4. The refrigerator according to claim 3, characterized in that: The load-bearing frame also includes a vertical section; the vertical section is connected to the horizontal section, the vertical section is arranged on the side of the installation box with the second return air outlet, and the vertical section is spaced apart from the side of the installation box with the second return air outlet.

5. The refrigerator according to claim 4, characterized in that: The horizontal segments and the vertical segments are arranged in a mesh shape.

6. The refrigerator according to claim 4, characterized in that: The upper surface of the installation box is provided with a clamping claw, and the clamping claw is used to fix the horizontal section.

7. The refrigerator according to claim 4, characterized in that: A limiting block is disposed on the inner bottom wall of the box body, and a side of the vertical section away from the second air return port is used to abut against the limiting block.

8. The refrigerator according to claim 4, characterized in that: One end of the inner bottom wall of the box body is formed with a step upward, and a side of the installation box away from the second return air outlet is in contact with the side wall of the step.

9. The refrigerator according to claim 8, characterized in that: The installation box comprises a main box body and a cover plate; the top of the main box body is open, the cover plate is detachably arranged on the top of the main box body, and the cover plate is used to close the opening of the main box body.

10. The refrigerator according to claim 9, characterized in that: The cover plate partially covers the upper surface of the step.

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