A top return air structure

Abstract

The utility model discloses a top air supply and return structure is arranged between freezer room and vegetable room of refrigerator, and its characterized in that is set up air duct subassembly between the bottom wall of freezer room and the top plate of vegetable room, air duct subassembly includes base plate, air cavity, air outlet base, the air inlet of air duct subassembly is connected the first return air vent of vegetable room top plate, the air outlet of air duct subassembly is connected the second return air vent of freezer room bottom wall, freezer room and vegetable room are set up as the chamber of independence each other, only rely on air duct subassembly and communicate, and air duct subassembly is embedded installation between freezer room and vegetable room, and is fixed after foaming procedure. The utility model discloses through double chamber design, sets up air duct subassembly between two chambers of independence each other, only has a heat exchange channel and carries out heat exchange work, and through the integration of air duct subassembly, air door, air door fixing piece to form a whole, not only simplifies the part type, quantity and installation step, and reduces the sealing procedure, and facilitates the replacement maintenance.

Description

Technical Field

[0001] This utility model relates to the field of air-cooled refrigerators, and more specifically, to a top-mounted air supply and return structure. Background Technology

[0002] Currently, the common air-cooled refrigerator supply and return air structures on the market typically place the supply air duct, return air duct, and air door on the back of the refrigerator body. This structure faces the problem that the foam layer thickness cannot meet the requirements of the air duct components when producing ultra-thin refrigerators. The horizontally arranged supply and return air structure mainly uses a single chamber divided into two chambers by a partition. The partition is mostly designed with multiple components such as VIP board and sponge, requiring a pre-foaming process. In addition, to reduce additional heat exchange, the partition needs to be sealed around its perimeter, resulting in low installation efficiency and cumbersome procedures. To improve the above problems and reduce heat exchange loss, a top supply and return air structure is provided. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a top-mounted air supply and return structure to overcome the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A top-mounted air supply and return structure is installed between the freezer compartment and the vegetable compartment of a refrigerator. The structure is characterized by an air duct assembly installed between the bottom wall of the freezer compartment and the top plate of the vegetable compartment. The air duct assembly includes a base plate, an air cavity, and an air outlet base. The air inlet of the air duct assembly is connected to a first return air outlet on the top plate of the vegetable compartment, and the air outlet of the air duct assembly is connected to a second return air outlet on the bottom wall of the freezer compartment. The freezer compartment and the vegetable compartment are configured as independent chambers, connected only by the air duct assembly. The air duct assembly is pre-embedded between the freezer compartment and the vegetable compartment and fixed after a foaming process.

[0006] The top plate of the wild vegetable room has an opening at one end for the first return air vent.

[0007] The top panel of the vegetable room is provided with a recessed air cavity slot, and the air cavity slot is surrounded by raised positioning ridges for initial positioning and fixation.

[0008] The air duct assembly is fixed by a mounting groove and a positioning ridge.

[0009] The air duct assembly has small support blocks inside the air cavity and a thickened heat insulation plate below the air cavity. These are clipped and glued to the air cavity slot to prevent condensation.

[0010] A notch is provided at one end of the insulation board to serve as the air inlet for the air duct assembly.

[0011] The air duct assembly has staggered sections on the substrate.

[0012] The air outlet base has base a side, base b side, base c side, and base d side for fixing to the bottom wall of the freezer compartment, and the air outlet has a recessed wedge-shaped structure.

[0013] The bottom wall of the freezer compartment is equipped with a first limiter matching the base a side, a second limiter matching the base b side, a third limiter matching the base c side, and a fourth limiter matching the base d side. The second return air vent is equipped with a downwardly inclined wedge-shaped structure.

[0014] The above technical solution has the following beneficial effects:

[0015] The top air supply and return structure of this utility model uses the horizontal arrangement of the air duct assembly to achieve an ultra-thin refrigerator design. Through the independent chamber design, only the air duct assembly provides return air between the freezer compartment and the vegetable compartment, reducing additional heat exchange. Furthermore, by integrating the main body of the assembly with the air duct assembly, the air door, and the air door fixing component into a whole, the types and number of parts are simplified, the sealing process is reduced, and installation, replacement, and maintenance are facilitated. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a bottom view of the present invention;

[0020] Figure 3 This is an exploded view of the air supply and return structure of this utility model;

[0021] Figure 4 This is a longitudinal sectional view of the present invention;

[0022] Figure 5 for Figure 4 Enlarged view of a portion of point a;

[0023] Figure 6 for Figure 4 Enlarged view of part b in the middle;

[0024] Figure 7 This is a structural schematic diagram of the air duct assembly;

[0025] Figure 8 This is a bottom view of the air duct assembly;

[0026] Figure 9 This is a schematic diagram of the structure of the bottom wall of the freezer compartment.

[0027] Explanation of reference numerals in the attached drawings: 1. Air duct assembly; 11. Air cavity; 111. Heat insulation board; 112. Air inlet; 113. Small support block; 12. Air outlet base; 12a. Base a side; 12b. Base b side; 12c. Base c side; 12d. Base d side; 121. Air outlet; 13. Mounting groove; 14. Base plate; 141. Misalignment; 2. Vegetable compartment top plate; 21. First return air inlet; 22. Air cavity slot; 23. Positioning ridge; 3. Freezer compartment bottom wall; 31. First limit; 32. Second limit; 33. Third limit; 34. Fourth limit; 35. Second return air inlet. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] See Figures 1-9 As shown, this utility model discloses a top-supply and return air structure, which consists of an air duct assembly 1, a vegetable compartment top plate 2, and a freezer compartment bottom wall 3. The air duct assembly 1 is installed above the vegetable compartment top plate 2, and the mounting groove 13 is matched with the positioning ridge 23. The heat insulation plate 111 below the air cavity 11 is snapped into the air cavity slot 22 and fixed with double-sided adhesive. At this time, the air outlet base 12 is installed below the freezer compartment bottom wall 3, and the second return air outlet 35 is connected to the air outlet 125. At this time, the two chambers of the freezer compartment and the vegetable compartment are connected only through the top-supply and return air structure as a heat exchange channel.

[0030] Multiple small support blocks 113 are set inside the air cavity 11 to ensure ventilation effect and improve the solidity of the air cavity 11, preventing deformation in the subsequent foaming stage. The lower heat insulation plate 111 has a notch at one end of the air inlet of the vegetable room to form the air inlet 112 of the air cavity. The positioning ridge 23 serves as a positioning and installation component and forms a maze structure to prevent the foaming adhesive from entering the connection between the air duct assembly 1 and the top plate 2 of the vegetable room during subsequent foaming. The base plate 14 has a staggered step 141 at the edge to reduce the drop in the sealing process and ensure the sealing effect of the PE tape.

[0031] When the freezer chamber bottom wall 3 is assembled with the air duct assembly 1, the freezer chamber bottom wall 3 is provided with a first limit 31 pressing against the base a side 12a, a second limit 32 pressing against the base b side 12b, a third limit 33 pressing against the base c side 12c, and a fourth limit 34 pressing against the base d side 12d to position the air duct assembly 1. The air outlet 121 is clamped onto the second return air outlet 35 through a wedge structure.

[0032] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A top-mounted air supply and return structure, disposed between the freezer compartment and the vegetable compartment of a refrigerator, characterized in that, An air duct assembly is installed between the bottom wall of the freezer compartment and the top plate of the wild vegetable compartment. The air duct assembly includes a base plate, an air cavity, and an air outlet base. The air inlet of the air duct assembly is connected to the first return air outlet of the top plate of the wild vegetable compartment, and the air outlet of the air duct assembly is connected to the second return air outlet of the bottom wall of the freezer compartment. The freezer compartment and the wild vegetable compartment are set as independent chambers and are connected only by the air duct assembly. The air duct assembly is pre-embedded between the freezer compartment and the wild vegetable compartment and is fixed after a foaming process.

2. The top-mounted air supply and return structure according to claim 1, characterized in that: The top plate of the wild vegetable room has an opening at one end for the first return air vent.

3. The top-mounted air supply and return structure according to claim 2, characterized in that: The top panel of the vegetable room is provided with a recessed air cavity slot, and the air cavity slot is surrounded by raised positioning ridges for initial positioning and fixation.

4. The top-mounted air supply and return structure according to claim 3, characterized in that: The air duct assembly is fixed by a mounting groove and a positioning ridge.

5. The top-mounted air supply and return structure according to claim 4, characterized in that: The air duct assembly has small support blocks inside the air cavity and a thickened heat insulation plate below the air cavity. These are clipped and glued to the air cavity slot to prevent condensation.

6. The top-mounted air supply and return structure according to claim 5, characterized in that: A notch is provided at one end of the heat insulation board to serve as the air inlet for the air duct assembly.

7. The top-mounted air supply and return structure according to claim 6, characterized in that: The air duct assembly has staggered steps on the substrate to reduce height differences and improve sealing performance.

8. The top-mounted air supply and return structure according to claim 7, characterized in that: The air outlet base has base a side, base b side, base c side, and base d side for fixing to the bottom wall of the freezer compartment, and the air outlet has a recessed wedge-shaped structure.

9. The top-mounted air supply and return structure according to claim 8, characterized in that: The bottom wall of the freezer compartment is equipped with a first limiter matching the base a side, a second limiter matching the base b side, a third limiter matching the base c side, and a fourth limiter matching the base d side. The second return air vent is equipped with a downwardly inclined wedge-shaped structure.

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