A refrigerator with side air return

By setting step-like openings on the sides of the refrigerator's cold and freezer compartments and arranging return air ducts laterally, the problem of large space occupation by traditional refrigerator return air ducts is solved, enabling a refrigerator design with a larger capacity.

CN224517115UActive Publication Date: 2026-07-17GUANGDONG HOMA REFRIGERATOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HOMA REFRIGERATOR CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In traditional air-cooled refrigerators, the return air duct is located at the back of the refrigerator and freezer compartments, which reduces the actual usable volume of the refrigerator and results in a large amount of non-effective volume being occupied.

Method used

The return air ducts are moved to the sides of the refrigerator and freezer compartments. By creating stepped gaps on the outer walls and arranging the return air ducts, the space occupied is reduced, and the gaps are filled with foam layers to optimize space utilization.

Benefits of technology

While keeping the cabinet dimensions the same, the effective volume of the refrigerator and freezer compartments has been increased, thus improving the usable space of the refrigerator.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a refrigerator with side air return. By creating a stepped notch by recessing the rear end of the outer sidewall of the freezer compartment and / or refrigerator compartment, and arranging the return air duct at the stepped notch, the following advantages are achieved: First, the return air duct no longer occupies the space at the rear of the refrigerator and freezer compartments, thus freeing up a significant amount of space to increase the volume of the refrigerator and freezer compartments. Second, due to the step notch, part of the space of the return air duct is compensated through the step notch, so the distance between the outer sidewall of the freezer and / or refrigerator compartment and the inner sidewall of the refrigerator shell is not the sum of the total distance between the return air duct and the sidewall of the refrigerator shell, the distance between the return air duct and the outer sidewall of the freezer compartment, and the thickness of the return air duct. Therefore, the distance between the freezer and / or refrigerator compartment and the sidewall of the refrigerator shell is also reduced, thereby freeing up some space to increase the volume of the freezer and / or refrigerator compartments. Therefore, with the same shell size, the refrigerator produced using this solution has a larger usable volume.
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Description

Technical Field

[0001] This utility model relates to the field of refrigerators, and in particular to a refrigerator with side air return. Background Technology

[0002] Reference Figures 1 to 3 In traditional frost-free refrigerators, a return air duct is typically installed to connect the refrigerator and freezer compartments. This duct is usually located at the back of both compartments, requiring a certain gap between it and the inner wall of the refrigerator shell, as well as between the duct itself and the refrigerator and freezer compartments. This means the distance between the refrigerator and freezer compartments and the back wall of the refrigerator shell must include the thickness of the return air duct, the distance between the duct and the back wall, and the distance between the duct and the freezer / refrigerator compartments. Under normal circumstances, this total thickness exceeds 80mm. Furthermore, this thickness, influenced by the refrigerator's width, results in a significant amount of ineffective volume, thus affecting the refrigerator's actual usable capacity. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to provide a refrigerator with side-return air, thereby moving the return air duct to the side of the refrigerator and freezer compartments to reduce its volume and increase the effective capacity of the refrigerator.

[0004] The technical solution adopted by this utility model to solve the problem is: a refrigerator with side air return, including a shell, a refrigerator compartment and a freezer compartment are provided inside the shell, and a cavity is formed between the outer periphery of the refrigerator compartment and the freezer compartment and the inner wall of the shell;

[0005] The freezer compartment has a first air vent on its outer side wall, and the refrigerator compartment has a second air vent on the same side as the first air vent on its outer side wall. The rear end of the freezer compartment and / or the refrigerator compartment has an inward recess to form a stepped notch, and the first air vent and / or the second air vent are arranged at the stepped notch.

[0006] The cavity is provided with a return air duct connecting the first air outlet and the second air outlet, and the return air duct is arranged laterally at the step notch. A gap is formed between the return air duct and the side wall of the shell. The cavity is filled with a foam layer.

[0007] As a further improvement to the above technical solution, a stepped notch is provided at the rear end of the outer wall of the freezer compartment, and the lower part of the side of the refrigerator compartment is recessed inward to form a notch. The second air vent is arranged on the side wall of the notch, and the top of the return air duct is fixed to the side wall of the notch.

[0008] As a further improvement to the above technical solution, the thickness of the return air duct is less than the depth of the opening.

[0009] As a further improvement to the above technical solution, there are two return air ducts, which are respectively arranged on both sides of the refrigerator compartment and the freezer compartment.

[0010] The beneficial effects of this utility model are as follows: By recessing the rear end of the outer wall of the freezer compartment and / or refrigerator compartment to form a stepped notch, and arranging the return air duct at the stepped notch, firstly, the return air duct no longer occupies the space at the rear of the refrigerator and freezer compartments, thus freeing up a large amount of space to increase the volume of the refrigerator and freezer compartments. Secondly, due to the setting of the stepped notch, part of the space of the return air duct is compensated through the stepped notch, so that the distance between the outer wall of the freezer compartment and / or refrigerator compartment and the inner wall of the cabinet is not the sum of the total distance between the return air duct and the side wall of the cabinet, the distance between the return air duct and the outer wall of the freezer compartment and the thickness of the return air duct. Therefore, the distance between the freezer compartment and / or refrigerator compartment and the side wall of the cabinet is also reduced, thereby freeing up some space to increase the volume of the freezer compartment and / or refrigerator compartment. Therefore, with the same cabinet size, the refrigerator produced using this solution has a larger usable volume. Attached Figure Description

[0011] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the existing technology;

[0013] Figure 2 A schematic diagram of the existing technology with the outer shell removed;

[0014] Figure 3 This is a top view of the existing freezer compartment structure.

[0015] Figure 4 This is a schematic diagram of the preferred embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the preferred embodiment of the present invention with the outer shell removed.

[0017] Figure 6 This is a top view of the freezer compartment in a preferred embodiment of the present invention. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 6 A refrigerator with side air return includes a shell 10, and a refrigerator compartment 11 and a freezer compartment 12 are provided inside the shell 10. A cavity is formed between the outer periphery of the refrigerator compartment 11 and the freezer compartment 12 and the inner wall of the shell 10.

[0023] The outer wall of the freezer compartment 12 is provided with a first air vent 121, and the outer wall of the refrigerator compartment 11 is provided with a second air vent 111 on the same side as the first air vent 121. The rear end of the outer wall of the freezer compartment 12 and / or the refrigerator compartment 11 is recessed inward to form a stepped notch 122, and the first air vent 121 and / or the second air vent 111 are arranged at the stepped notch 122.

[0024] The cavity is provided with a return air duct 20 that connects the first air outlet 121 and the second air outlet 111, and the return air duct 20 is arranged laterally at the step notch 122. A gap is formed between the return air duct 20 and the side wall of the housing 10, and the cavity is filled with a foam layer.

[0025] By creating a stepped notch 122 by recessing the rear end of the outer wall of the freezer compartment 12 and / or the refrigerator compartment 11, and arranging the return air duct 20 at the stepped notch 122, two advantages are achieved: first, the return air duct 20 no longer occupies space at the rear of the refrigerator compartment 11 and the freezer compartment 12, thus freeing up a significant amount of space to increase the volume of the refrigerator compartment 11 and the freezer compartment 12; second, due to the step notch 122, some space of the return air duct 20 is compensated through the step notch 122, thereby increasing the volume of the freezer compartment 12 and / or the refrigerator compartment 11. The distance between the outer wall of the refrigerator compartment 11 and the inner wall of the shell 10 is not the sum of the distance between the return air duct 20 and the side wall of the shell 10, the distance between the return air duct 20 and the outer wall of the freezer compartment 12, and the thickness of the return air duct 20. Therefore, the distance between the freezer compartment 12 and / or the refrigerator compartment 11 and the side wall of the shell 10 is also reduced, thereby freeing up some space to increase the volume of the freezer compartment 12 and / or the refrigerator compartment 11. Therefore, with the same shell 10 size, the refrigerator produced using this solution has a larger usable volume.

[0026] In existing technologies, the return air duct 20 is typically positioned outside the freezer compartment 12, with its top connected to the bottom of the refrigerator compartment 11. To further improve space utilization, it is preferable that a stepped notch 122 is provided at the rear end of the outer wall of the freezer compartment 12, and a recessed opening 112 is formed inward on the lower part of the side of the refrigerator compartment 11. The second air vent 111 is positioned on the side wall of the notch 112, and the top of the return air duct 20 is fixed to the side wall of the notch 112. Furthermore, it is preferable that the thickness of the return air duct 20 is less than the depth of the notch 112.

[0027] To improve the return air efficiency, it is preferable to have two return air ducts 20, which are respectively arranged on both sides of the refrigerator compartment 11 and the freezer compartment 12.

[0028] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A refrigerator with side air return, comprising a shell (10), wherein a refrigerator compartment (11) and a freezer compartment (12) are disposed within the shell (10), and a cavity is formed between the outer periphery of the refrigerator compartment (11) and the freezer compartment (12) and the inner wall of the shell (10), characterized in that: The outer wall of the freezer compartment (12) is provided with a first air vent (121), and the outer wall of the refrigerator compartment (11) is provided with a second air vent (111) on the same side as the first air vent (121). The rear end of the outer wall of the freezer compartment (12) and / or the refrigerator compartment (11) is recessed inward to form a stepped notch (122), and the first air vent (121) and / or the second air vent (111) are arranged at the stepped notch (122). The cavity is provided with a return air pipe (20) connecting the first air outlet (121) and the second air outlet (111), and the return air pipe (20) is arranged laterally at the step notch (122). A gap is formed between the return air pipe (20) and the side wall of the shell (10), and the cavity is filled with a foam layer.

2. A refrigerator with side air return as described in claim 1, characterized in that: The rear end of the outer wall of the freezer compartment (12) is provided with a stepped notch (122), the lower part of the side of the refrigerator compartment (11) is recessed inward to form a notch (112), the second air vent (111) is arranged on the side wall of the notch (112), and the top of the return air duct (20) is fixed to the side wall of the notch (112).

3. A refrigerator with side air return as described in claim 2, characterized in that: The thickness of the return air duct (20) is less than the depth of the notch (112).

4. A refrigerator with side air return as described in claim 1, characterized in that: There are two return air ducts (20), which are respectively arranged on both sides of the refrigerator compartment (11) and the freezer compartment (12).