Anti-deformation structure for mounting groove of air return pipe of refrigerator

Abstract

The utility model discloses an anti-deformation structure for an air return pipe mounting groove of a refrigerator, which relates to the technical field of refrigerator liner structures and comprises a liner which is a hollow cavity and is formed by plastic uptake, the liner and other parts are combined, assembled and foamed to form a refrigerator body, and an air return pipe mounting groove structure is designed on the back of the liner. The air return pipe installation groove structure comprises an installation bottom plate, an installation groove body is formed in the upper end of the installation bottom plate, an air return pipe groove used for storing an air return pipe is formed in the bottom of the installation groove body, one end of the installation groove body is connected with the installation bottom plate through a groove body slope, and the other end of the installation groove body is connected with a perforating box. A perforated inclined surface is arranged at one end, far away from the mounting groove body, of the perforated box, and is provided with a connecting perforated hole for mounting an air return pipe; due to the groove inclined plane design of the air return pipe mounting groove, a punching die can be simplified, and the die cost can be reduced; plastic molding of the refrigerator container and thickness increase of the foaming layer are facilitated, and meanwhile condensation of the back can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerator box structures, in particular to an anti-deformation structure of a refrigerator air return pipe installation groove. Background Art

[0002] Existing refrigerator cases feature a rectangular mounting slot for the return air duct on the back of the case. Due to design issues like a lack of reinforcing ribs, a wide slot width, a lack of a beveled surface, and a relatively short slot length, the slot often deforms during the foaming process due to insufficient strength, with some deformed areas even experiencing serious cracking. Furthermore, the slot width is designed to be the same as the return air duct slot hole, increasing its width and potentially leading to condensation on the back of the refrigerator. The lack of a beveled transition makes punching the return air duct hole difficult, complicating the mold structure and increasing mold costs. Some holes are larger, which can lead to the slot being too deep, reducing the thickness of the back foam layer and causing condensation. The slot length is also too short, requiring workers to apply greater force to connect the pipes during assembly, resulting in increased labor intensity and low assembly efficiency. Utility Model Content

[0003] The utility model aims to provide an anti-deformation structure for a refrigerator return air duct installation groove, which solves the technical problem that the return air duct installation groove has low strength and the box body is deformed after foaming, causing the box liner to crack.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A refrigerator return air duct mounting groove anti-deformation structure includes a box liner, which is a hollow cavity formed by vacuum molding. The box liner is assembled and foamed with other parts to form a refrigerator box body. A return air duct mounting groove structure is designed on the back of the box liner. The return air duct mounting groove structure includes a mounting base plate, a mounting trough body is provided at the upper end of the mounting base plate, and a return air duct groove for storing the return air duct is provided at the bottom of the mounting trough body. One end of the mounting trough body is connected to the mounting base plate through a trough body slope, and the other end of the mounting trough body is connected to a perforated box, and the perforated box is provided with a perforated inclined surface at the end away from the mounting trough body, and the perforated inclined surface is provided with a connecting perforation for installing the return air duct.

[0006] Preferably, the installation slot is a rectangular parallelepiped structure.

[0007] Preferably, the installation groove body is provided with a plurality of reinforcing ribs in the same shape as the groove, and the plurality of reinforcing ribs are distributed in a rectangular array.

[0008] Preferably, the reinforcing rib is a spherical structure.

[0009] Preferably, the width of the perforated box is greater than the width of the mounting slot, and the perforated box and the mounting slot are smoothly connected via a connecting bevel.

[0010] Preferably, the connection between the installation groove body and the installation base plate, and the connection between the installation groove body and the perforated box are both connected through arc transition.

[0011] Preferably, the bottom and mouth of the return air pipe groove have a radius of R3-R5.

[0012] Preferably, the length of the return air pipe groove is 120-240 mm.

[0013] Beneficial effects of the utility model:

[0014] (1) The groove bevel design of the return air pipe installation groove of the utility model is conducive to simplifying the punching mold and reducing the mold cost; it is conducive to the vacuum forming of the box liner and increasing the thickness of the foam layer, and at the same time can prevent condensation on the back.

[0015] (2) The multiple reinforcing ribs of the installation groove are designed to improve the groove strength, prevent foaming and deformation, and help improve the appearance of the product. The spherical design of the reinforcing rib is conducive to vacuum molding. At the same time, the depth of the reinforcing rib groove and the back is reduced, the thickness of the back foam layer is increased, and condensation on the back is prevented.

[0016] (3) The design of the bevel of the return air pipe connection perforation installation is different from the width of the main body, which is conducive to solving the condensation defect on the back; the transition surface design is conducive to reducing the groove area, thereby solving the condensation problem on the back and is also conducive to vacuum forming.

[0017] (4) The extended length of the return air pipe installation groove is conducive to increasing the length of the return air pipe entering the box, reducing the labor intensity of workers bending and deforming the pipe, and indirectly improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall axonometric structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the bottom three-dimensional structure of the utility model as a whole;

[0022] Figure 4 It is a schematic diagram of the main structure of the entire utility model.

[0023] In the figure: 10, installation base plate; 20, installation trough; 21, return air pipe groove; 30, reinforcement rib; 40, trough slope; 50, arc transition; 60, perforation box; 61, connecting slope; 62, perforation slope; 63, connecting perforation. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-4 As shown, the utility model is an anti-deformation structure of a refrigerator return air duct mounting groove, including a box liner, which is a hollow cavity and is formed by vacuum molding. The box liner is assembled and foamed with other components to form a refrigerator box body. A return air duct mounting groove structure is designed on the back of the box liner, and the return air duct mounting groove structure includes a mounting base plate 10, and a mounting trough body 20 is provided at the upper end of the mounting base plate 10. A return air duct groove 21 for storing the return air duct is provided at the bottom of the mounting trough body 20. One end of the mounting trough body 20 is connected to the mounting base plate 10 through a trough body slope 40, and the other end of the mounting trough body 20 is connected to a perforated box 60, and a perforated inclined surface 62 is provided at the end of the perforated box 60 away from the mounting trough body 20, and a connecting perforation 63 for installing the return air duct is provided on the perforated inclined surface 62.

[0026] It should be noted that the connecting perforation 63 is designed on the perforation slope 62. The main function of the connecting perforation 63 is to solve the problem of the return air pipe entering the return air pipe installation groove inside the box, which is convenient for the subsequent evaporator piping connection; the perforation slope 62 has two main functions. One is to simplify the punching die structure, optimize the horizontal punching to vertical punching, and reduce the mold cost; the other function is to solve the condensation defects caused by the deeper grooves required by the existing structure, which is equivalent to increasing the depth of the foaming layer in disguise, thereby playing a better thermal insulation role.

[0027] In an optional embodiment, the installation slot 20 is a rectangular parallelepiped structure.

[0028] It should be noted that the edges and corners of the rectangular structure are all rounded. The rounded corner structure design is conducive to vacuum molding and solves the problem of thinness.

[0029] In an optional embodiment, a plurality of reinforcing ribs 30 having the same groove shape are provided on the installation slot body 20 , and the plurality of reinforcing ribs 30 are distributed in a rectangular array.

[0030] It should be noted that the reinforcing ribs 30 mainly serve to strengthen the grooves to prevent the grooves from foaming and deforming, thereby affecting the appearance.

[0031] In an optional embodiment, the reinforcing rib 30 is a spherical structure.

[0032] It should be noted that the reinforcing rib 30 is designed as a spherical structure, which is conducive to vacuum molding, while reducing the depth of the reinforcing rib groove and the back, increasing the thickness of the back foam layer, and preventing condensation on the back.

[0033] In an optional embodiment, the width of the perforated box 60 is greater than the width of the mounting slot 20 , and the perforated box 60 and the mounting slot 20 are smoothly connected via a connecting slope 61 .

[0034] It should be noted that the perforated box 60 is connected to the mounting groove body 20 through a connecting bevel 61. The main function of the connecting bevel 61 is to convert the deeper groove surface into a groove line, thereby increasing the foaming layer. In addition, it is more conducive to vacuum forming. The width of the bevel is designed to be wider than the main body. Its main function is to solve the strength of the punching mold die and improve the life of the mold.

[0035] In an optional embodiment, the connection between the installation slot body 20 and the installation base plate 10 and the connection between the installation slot body 20 and the perforated box 60 are both connected through an arc transition 50.

[0036] It should be noted that the arc transition 50 is used to achieve smooth connection of various components, thereby improving the integrity and strength of the entire structure.

[0037] In an optional embodiment, the bottom and the periphery of the mouth of the return air pipe groove 21 have a radius of R3-R5.

[0038] It should be noted that the main function of the rounded corners is to enhance the blister molding and prevent the courage from being thin.

[0039] In an optional embodiment, the length of the return air pipe groove 21 is 120-240 mm.

[0040] It should be noted that by lengthening the return air pipe, the return air pipe can be easily bent and deformed when the workers pull it to connect to the evaporator pipe, which reduces the force of the workers when bending the pipe, reduces their labor intensity and improves assembly efficiency.

[0041] The working principle of this utility model is as follows: the installation slot structure is made into a special-shaped structure, the connecting bevel 62 of the return air pipe connecting perforation 63 is partially widened, and the width of the main body of the installation slot body 20 is reduced, thereby reducing the installation slot area and preventing condensation. The connecting bevel 62 of the connecting perforation 63 is designed as a bevel structure, and the punching die can punch vertically, simplifying the punching die structure and reducing die costs. It also helps to reduce the installation slot depth and achieve the goal of preventing condensation. The length of the return air pipe groove 21 is extended, which increases the length of the inserted return air pipe, improves the return air pipe's ability to bend and deform, reduces the force required by workers to bend the pipe, saves work hours, and achieves the purpose of improving assembly efficiency.

[0042] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A refrigerator return air duct mounting groove anti-deformation structure, comprising a box liner, the box liner being a hollow cavity formed by vacuum molding, the box liner being assembled and foamed with other parts to form a refrigerator body, the back of the box liner being designed with a return air duct mounting groove structure, characterized in that: The return air pipe installation groove structure comprises a mounting base plate (10), a mounting groove body (20) is provided at the upper end of the mounting base plate (10), a return air pipe groove (21) for storing the return air pipe is provided at the bottom of the mounting groove body (20), one end of the mounting groove body (20) is connected to the mounting base plate (10) through a groove body slope (40), the other end of the mounting groove body (20) is connected to a perforated box (60), and the perforated box (60) is provided with a perforated inclined surface (62) at one end away from the mounting groove body (20), and a connecting perforation (63) for installing the return air pipe is provided on the perforated inclined surface (62).

2. The anti-deformation structure of the refrigerator return air duct installation groove according to claim 1, characterized in that: The installation tank (20) is a rectangular parallelepiped structure.

3. The anti-deformation structure of the refrigerator return air duct installation groove according to claim 1, characterized in that: The installation groove body (20) is provided with a plurality of reinforcing ribs (30) in the same groove shape, and the plurality of reinforcing ribs (30) are distributed in a rectangular array.

4. The anti-deformation structure of the refrigerator return air duct installation groove according to claim 3, characterized in that: The reinforcing rib (30) is a spherical structure.

5. The anti-deformation structure of the refrigerator return air duct installation groove according to claim 1, characterized in that: The width of the perforated box (60) is greater than the width of the installation slot (20), and the perforated box (60) and the installation slot (20) are smoothly transitionally connected via a connecting bevel (61).

6. The anti-deformation structure of the refrigerator return air duct installation groove according to claim 1, characterized in that: The connection between the installation groove body (20) and the installation base plate (10), and the connection between the installation groove body (20) and the perforated box (60) are both connected via an arc transition (50).

7. The anti-deformation structure of the refrigerator return air duct installation groove according to claim 1, characterized in that: The bottom and the periphery of the mouth of the return air pipe groove (21) have rounded corners of R3-R5.

8. The anti-deformation structure of the refrigerator return air duct installation groove according to claim 1, characterized in that: The length of the return air pipe groove (21) is 120-240 mm.

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