Refrigerator

Abstract

The refrigerator comprises an inner container and an air duct assembly arranged on the rear wall of the inner container, the air duct assembly comprises an air duct front cover fixed to the rear wall of the inner container and an air guide piece, an air guide channel is formed by the air duct front cover and the rear wall of the inner container, and a heat preservation piece and a sealing piece are arranged on the face, facing the rear wall of the inner container, of the air duct front cover. The heat preservation part is adhered to the air duct front cover and covers the air guide part; the air guide piece is located within the range defined by the sealing piece, and the sealing piece is pasted to the air duct front cover and abuts against the rear wall of the inner container. When the air duct assembly is maintained, the glued heat preservation piece and the sealing piece can be detached by detaching the air duct front cover.

Description

Technical Field

[0001] The invention relates to the field of refrigeration, and in particular to a refrigerator. Background Art

[0002] At present, most of the internal air ducts of refrigerators on the market need to be pasted with seals. These seals will directly adhere to the plastic parts and foam parts. The adhesiveness is very strong, which leads to the foam parts being damaged when the parts are removed during the subsequent after-sales repair of the air duct. Moreover, during reassembly, the after-sales staff are not equipped with relevant seals, resulting in the air duct being unable to be assembled after it is disassembled. Summary of the invention

[0003] One of the purposes of the present invention is to provide a refrigerator to solve the technical problem of high cost of repairing air duct components in the prior art.

[0004] To achieve one of the above-mentioned purposes of the invention, one embodiment of the present invention provides a refrigerator, comprising an inner tank and an air duct assembly arranged on the rear wall of the inner tank, the air duct assembly comprising an air duct front cover fixed to the rear wall of the inner tank and an air guide member forming an air guide channel with the rear wall of the inner tank, the air duct front cover is provided with an insulation member and a sealing member on a side facing the rear wall of the inner tank, the insulation member is adhered to the air duct front cover and covers the air guide member; the air guide member is located within the range surrounded by the sealing member, and the sealing member is adhered to the air duct front cover and abuts against the rear wall of the inner tank.

[0005] As a further improvement of one embodiment of the present invention, the thermal insulation component is a thermal insulation foam, a fixed wall is provided on the periphery of the air guide component to fit and be fixed to the rear wall of the inner liner, an opening is provided on the side of the air guide component facing the rear wall of the inner liner to form an air guide channel, and the surface of the thermal insulation component facing the air guide component has no colloid and fits the surface of the air guide component to isolate the air guide channel from the front cover of the air duct.

[0006] As a further improvement of one embodiment of the present invention, the air guide member includes a front wall facing away from the rear wall of the inner liner and in contact with the insulation member, a side wall vertically bent from the front wall, and the fixed wall further bent from the side wall, the side wall vertically abuts against the rear wall of the inner liner, and the front wall has a through hole.

[0007] As a further improvement of one embodiment of the present invention, a thermal insulation foam is provided on the side of the air duct front cover facing the rear wall of the inner tank, the air duct assembly includes an evaporator arranged below the air guide member, the thermal insulation foam is located between the evaporator and the air duct front cover, and the thermal insulation foam and the thermal insulation foam are aligned and overlapped with each other at the junction.

[0008] As a further improvement of one embodiment of the present invention, the seal is a sealing sponge strip, and the air duct front cover is provided with a sealing wall toward the inner tank near its outer peripheral edge, and the seal is adhered to the outer peripheral edge of the air duct front cover so as to be located on the outside of the sealing wall, and the thermal insulation foam and thermal insulation foam are located within the range surrounded by the seal and cover the surface of the air duct front cover located on the inner side of the sealing wall.

[0009] As a further improvement of one embodiment of the present invention, the air duct front cover includes a buckle portion arranged at the sealing wall, so that the sealing member is located on the outside of the buckle portion, and the buckle portion is used to be fixed to the rear wall of the inner tank.

[0010] As a further improvement of one embodiment of the present invention, the air duct front cover is assembled to the rear wall of the inner tank, the sealing member abuts against the rear wall of the inner tank, and the thickness of the sealing member is reduced by at least 2 mm after abutment.

[0011] As a further improvement of one embodiment of the present invention, the air duct assembly includes a fan fixed to the rear wall of the inner tank, the air guide member protrudes forward a certain distance corresponding to the front wall where the fan is accommodated and an opening is provided to provide a receiving groove for accommodating the fan, the receiving groove is connected to the air guide channel, and a sterilization module is also provided in the receiving groove near the fan.

[0012] As a further improvement of an embodiment of the present invention, the air duct front cover is arranged to make way forward at the corresponding fan, and electrical components are integrated on the side of the air duct front cover facing the rear wall of the inner tank.

[0013] As a further improvement of one embodiment of the present invention, the periphery of the air guide member is arranged to be fixed to a fixed wall on the rear wall of the inner tank, and the fixed wall is provided with a gap for the fan cable and / or the sterilization module cable to pass through.

[0014] Compared with the prior art, the present invention provides a refrigerator including an air duct assembly arranged on the rear wall of the inner tank, and the front cover of the air duct with the insulation part, the sealing part and the insulation foam pasted on it is fixed to the rear wall of the inner tank. When disassembling, there is no need to remove the adhesive part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the cooperation between the air duct assembly and the inner tank in one embodiment of the present invention.

[0016] Figure 2 yes Figure 1 Schematic diagram of removing the front cover of the air duct.

[0017] Figure 3 It is an exploded view of a part of the structure of the air duct assembly in one embodiment of the present invention.

[0018] Figure 4 yes Figure 3 Further decomposition diagram.

[0019] Figure 5 It is an exploded view of the air duct front cover, sealing member, thermal insulation member and thermal insulation foam in one embodiment of the present invention.

[0020] Figure 6 It is a cross-sectional view of the cooperation between the air duct assembly and the inner tank in one embodiment of the present invention.

[0021] Figure 7 yes Figure 6 Magnified view of the structure in the middle circle. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0023] As used herein, terms indicating spatial relative positions such as "upper," "above," "lower," and "below" are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative position may be intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, if the device in the figure is turned over, units described as being "below" or "beneath" other units or features will be located "above" the other units or features. Thus, the exemplary term "below" can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein interpreted accordingly.

[0024] See also Figure 1-4 , is a structural schematic diagram of a refrigerator provided by an embodiment of the present invention.

[0025] The refrigerator includes an inner container 200 and an air duct assembly 100 disposed on the inner container rear wall 210. The air duct assembly 100 includes an air duct front cover 10 fixed to the inner container rear wall 210 and an air guide 20 forming an air guide channel 201 with the inner container rear wall 210. The air duct front cover 10 is provided with a heat preservation member 30 and a sealing member 40 on one side facing the inner container rear wall 210. The heat preservation member 30 is adhered to the air duct front cover 10 and covers the air guide 20. The air guide 20 is located within the range surrounded by the sealing member 40. The sealing member 40 is adhered to the air duct front cover 10 and abuts against the inner container rear wall 210. When the air duct assembly 100 is removed for maintenance, the air duct front cover 10 is directly removed. Since the heat preservation member 30 and the sealing member 40 are adhered to the air duct front cover 10, they can be removed together with the air duct front cover 10.

[0026] More specifically, the air duct front cover 10 is snap-fastened to the liner rear wall 210, and the air duct front cover 10 is formed in one piece, covering the liner rear wall 210. The thermal insulation component 30 and the sealing component 40 are both adhesively attached on the back, and the release paper is torn off and then pasted on the side of the air duct front cover 10 facing the liner rear wall 210.

[0027] Preferably, the thermal insulation component 30 is thermal insulation foam, a fixed wall is provided on the periphery of the air guide component 20 to adhere to and be fixed to the inner liner rear wall 210, an opening is provided on the side of the air guide component 20 facing the inner liner rear wall 210 to form an air guide channel, the surface of the thermal insulation component 30 facing the air guide component 20 is free of colloid and covers the surface of the air guide component 20 to isolate the air guide channel from the air duct front cover 10, and the function of the thermal insulation component 30 is to isolate the cold air transmission between the two and prevent condensation on the exterior surface of the air duct front cover 10.

[0028] The air guide 20 includes a front wall facing away from the rear wall of the liner and in contact with the heat preservation member 30, and a side wall bent vertically from the front wall, and an air guide channel is formed between the front wall, the side wall and the rear wall 210 of the liner, and cold air can be transmitted in the air guide channel. The air guide 20 is fixed to the rear wall 210 of the liner by screws, and its outer periphery should cover the surface of the rear wall 210 of the liner to prevent air leakage. The air guide 20 is provided with a through hole 213 connected to the space outside the air duct front cover 10 to realize air circulation between the air guide channel and the space outside the air duct front cover 10.

[0029] Specifically, the air guide 20 includes an upper part 21 and a lower part 22. The upper part 21 is formed into a regular rectangular shape, including a vertical sheet-shaped first front wall 211 and a first side wall 212. The first side wall 212 vertically abuts against the inner liner rear wall 210. The first front wall 211 and the first side wall 212 are together with the inner liner rear wall 210 to form a rectangular channel, and the first front wall 211 is provided with a through hole 213, and the through hole 213 is connected to the through hole of the air duct front cover 10. The first side wall 212 is bent to extend a first fixed wall 214, and the first fixed wall 214 horizontally covers the inner liner rear wall 210 and is fixed to the inner liner rear wall 210 by screwing.

[0030] Preferably, the air duct assembly 100 includes a fan 50 fixed to the rear wall 210 of the inner tank, and the front wall of the air guide 20 corresponding to the location where the fan is received protrudes forward for a distance and is provided with an opening to provide a receiving slot 224 for receiving the fan 50, the receiving slot 224 is connected to the air guide channel, and a sterilization module 51 is also provided in the receiving slot 224 near the fan 50. The fan 50 and the sterilization module 51 are integrated in the receiving slot 224, and are convenient for maintenance after disassembly.

[0031] Specifically, the lower part 22 of the air guide 20 accommodates the fan 50 and is formed into a cylindrical shape. The lower part 22 includes a second front wall 221 and a second side wall 222. The second side wall 222 vertically abuts against the inner tank rear wall 210 and bends to extend a second fixed wall 223. The second fixed wall 223 horizontally covers the inner tank rear wall 210 and is fixed to the inner tank rear wall by screwing. The second side wall 222 extends a greater distance in the front-to-back direction than the first side wall 212. The second front wall 221 protrudes forward a distance from the first front wall 211 to form a receiving groove 224 with a depth greater than the above-mentioned rectangular channel in the front-to-back direction, and the second front wall 221 is provided with a circular opening at the fan corresponding to the fan of the fan 50 to expose the fan.

[0032] Specifically, the air guide 20 also includes a transition portion 23 connecting the upper portion 21 and the lower portion 22, and the transition portion includes an inclined third front wall 231 and a third side wall 232, and the width of the third side wall 232 gradually increases along the up and down directions to transition between the first side wall 212 and the second side wall 222, and the third side wall 232 vertically abuts against the rear wall 210 of the inner tank.

[0033] Specifically, the fan 50 is directly fixed to the corresponding position of the rear wall 210 of the refrigerator liner, and is fixed by screwing; the sterilization module 51 is fixed to the corresponding position of the air guide 20 facing the rear wall 210 of the liner. The fixing method is not limited, and it can be a buckle or screw method. It is preferably fixed in the receiving groove 224, and the cables of the sterilization module 51 are straightened and fixed, because the receiving groove 224 is also used to install the fan 50, to prevent the cables of the sterilization module 51 from interfering with the fan 50 and causing failure. The type of electrical components can be increased or decreased according to the function, and integrated and installed in the receiving groove 224 for subsequent maintenance. The air duct front cover 10 is arranged to make way forward at the corresponding fan 50, and if more electrical component functions need to be added, it can also be integrated on the inner side of the air duct front cover 10 facing the rear wall 210 of the liner, which is convenient for disassembly and maintenance. Assemble the assembled air guide 20 to the rear wall 210 of the inner tank, wherein the second fixed wall 223 is provided with a plurality of notches 225. Pay attention to routing the cables of the fan 50 and the sterilization module 51 through the corresponding notches to facilitate subsequent wiring, and then screw in the corresponding screw through-hole positions to fix them.

[0034] The side of the air duct front cover 10 facing the inner tank rear wall 210 is provided with insulation foam 60, and the air duct assembly includes an evaporator arranged below the air guide 20, and the insulation foam 60 is located between the evaporator and the air duct front cover 10, and the insulation foam and the insulation foam are aligned and overlapped with each other at the junction to prevent artificial distortion.

[0035] The above-mentioned seal 40 is a sealing sponge strip with glue attached, and the sealing sponge strip is adhered to the outer periphery of the air duct front cover 10. The seal 40 is mainly used for sealing between the air duct front cover 10 and the inner tank 200 to prevent cold air from leaking out and ensure that cold air is returned from the bottom of the air duct assembly 100.

[0036] Specifically, combined Figure 3 , 5 As shown, the seal 40 is pasted on the outer periphery of the air duct front cover 10. The air duct front cover 10 is provided with a sealing wall 11 near its outer peripheral edge toward the inner liner. The seal 40 is pasted on the outer peripheral edge of the air duct front cover so as to be located outside the sealing wall 11. The heat preservation member 30 is pasted on the air duct front cover 10 corresponding to the air guide member 20. The heat preservation foam 60 is pasted on the air duct front cover 10 corresponding to the evaporator. The evaporator is located below the air guide member 20. The heat preservation member 30 and the heat preservation foam 60 cover the inner side of the air duct front cover 10 inside the sealing wall and are both located within the enclosure of the seal 40. The air duct front cover 10 with the heat preservation member 30, the seal 40 and the heat preservation foam 60 pasted is fixed to the rear wall 210 of the inner liner. In this way, the relevant adhesive parts are separately assembled on the detachable air duct front cover 10, so that the air duct assembly 100 can be easily disassembled for maintenance without removing the adhesive parts, thereby solving the pain point of directly replacing the air duct assembly 100 for after-sales maintenance of small electrical appliances. In this case, only the assembled air duct front cover 10 needs to be disassembled. Figure 2 As shown, the air guide 20 and the fan 50 inside can be exposed, and then the screws of the air guide 20 can be removed, and the air guide 20 and the related electrical components inside can be removed and the fan 50 can be completely exposed, and the electrical components can be replaced, avoiding the method of directly replacing the air duct when repairing the internal electrical components, which is convenient for disassembly and maintenance, and also saves a part of the after-sales maintenance cost.

[0037] The air duct front cover 10 extends a buckle portion 12 near its edge toward the inner liner 200, and the sealing sponge strip is adhered to the outer periphery of the buckle portion 12. The buckle portion 12 is fixed to the inner liner rear wall 210, and the buckle portion 12 is arranged on the sealing wall 11. The sealing member 40 is adhered to the outer periphery of the sealing wall 11 and the buckle portion 12 to better prevent air leakage. The air duct front cover 10 is assembled to the inner liner rear wall 210, and the sealing sponge strip abuts against the inner liner rear wall, and the thickness of the sealing sponge strip is reduced by at least 2 mm after abutment, so as to achieve tight abutment and ensure sealing. Figure 6-7 shown.

[0038] The beneficial effect of the present invention is that the front cover 10 of the air duct with the insulation part 30, the sealing part 40 and the insulation foam 60 pasted thereon is fixed to the rear wall 210 of the inner tank, and when disassembling, there is no need to remove the adhesive parts; the sealing part 40 is arranged on the front cover 10 of the air duct and further on the outer periphery of the buckle part 12, which is conducive to sealing.

[0039] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0040] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigerator, comprising an inner container and an air duct assembly arranged on the rear wall of the inner container, characterized in that: The air duct assembly includes an air duct front cover fixed to the rear wall of the inner liner and an air guide member forming an air guide channel with the rear wall of the inner liner. The air duct front cover is provided with an insulation member and a sealing member on a side facing the rear wall of the inner liner. The insulation member is adhered to the air duct front cover and covers the air guide member; the air guide member is located within the range surrounded by the sealing member, and the sealing member is adhered to the air duct front cover and abuts against the rear wall of the inner liner.

2. The refrigerator according to claim 1, characterized in that: The thermal insulation component is thermal insulation foam, a fixed wall is arranged on the periphery of the air guide component and is attached to and fixed to the rear wall of the inner liner, an opening is arranged on the side of the air guide component facing the rear wall of the inner liner to form an air guide channel, and the surface of the thermal insulation component facing the air guide component has no colloid and is attached to the surface of the air guide component to isolate the air guide channel from the front cover of the air duct.

3. The refrigerator according to claim 2, characterized in that: The air guide member includes a front wall facing away from the rear wall of the inner liner and in contact with the heat preservation member, a side wall vertically bent from the front wall, and the fixed wall further bent from the side wall, the side wall vertically abuts against the rear wall of the inner liner, and the front wall has a through hole.

4. The refrigerator according to claim 2, characterized in that: The front cover of the air duct is provided with insulation foam on one side facing the rear wall of the inner tank. The air duct assembly includes an evaporator arranged below the air guide. The insulation foam is located between the evaporator and the front cover of the air duct, and the junction between the insulation foam and the insulation foam is aligned and overlapped with each other.

5. The refrigerator according to claim 1, characterized in that: The sealing member is a sealing sponge strip, and the air duct front cover is provided with a sealing wall toward the inner tank near its peripheral edge, and the sealing member is adhered to the peripheral edge of the air duct front cover so as to be located outside the sealing wall, and the thermal insulation foam and thermal insulation foam are located within the range surrounded by the sealing member and cover the surface of the air duct front cover located inside the sealing wall.

6. The refrigerator according to claim 5, characterized in that: The air duct front cover comprises a buckle portion arranged at the sealing wall, so that the sealing member is located outside the buckle portion, and the buckle portion is used to be fixed to the rear wall of the inner tank.

7. The refrigerator according to claim 5, characterized in that: The air duct front cover is assembled to the rear wall of the inner tank, and the sealing member abuts against the rear wall of the inner tank, and the thickness of the sealing member is reduced by at least 2 mm after abutment.

8. The refrigerator according to claim 3, characterized in that: The air duct assembly includes a fan fixed to the rear wall of the inner tank, the air guide member protrudes forward a certain distance from the front wall corresponding to the location where the fan is accommodated and an opening is provided to provide a receiving groove for accommodating the fan, the receiving groove is connected to the air guide channel, and a sterilization module is also provided in the receiving groove near the fan.

9. The refrigerator according to claim 8, characterized in that: The air duct front cover is arranged to give way forward at the corresponding fan, and the air duct front cover is integrated with electrical components on the side facing the rear wall of the inner tank.

10. The refrigerator according to claim 8, characterized in that: The periphery of the air guide is arranged to be fixed to a fixed wall on the rear wall of the inner container, and the fixed wall is provided with a notch for the fan cable and / or the sterilization module cable to pass through.

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