Vent hole assembly for refrigerator capable of automatically balancing air pressure

Abstract

The utility model discloses an air vent assembly for a refrigerator capable of automatically balancing air pressure, which relates to the technical field of refrigerator parts and comprises a box cover, end stoppers are respectively mounted at the left end and the right end of the box cover, and an adsorption cover lining is mounted on the lower portion of the box cover. An air hole assembly is installed on the inner side of the box cover, the air hole assembly comprises an inlet connecting piece, a supporting connecting piece and a frost resisting box which are connected in sequence, and an air outlet communicated with the interior of the box body is formed in the frost resisting box; the inlet connecting piece comprises an air inlet cavity, and the air inlet cavity is mounted in the mounting groove of the end stopper and is communicated with the outside of the box body; according to the utility model, a spring button connection mode is adopted, so that the installation of the air hole assembly is firmer, the air hole assembly is not easy to fall off, the problem that the air hole connecting piece falls off due to manual operation, mould proofing and the like can be reduced, time and labor are saved, the working efficiency is improved, and the working experience is improved.

Description

A vent assembly for an automatically balancing air pressure freezer Technical Field

[0001] This utility model relates to the technical field of freezer components, specifically to a vent assembly for an automatic pressure-balancing freezer. Background Technology

[0002] With economic development, more and more household appliances are entering people's daily lives, especially freezers, which have become indispensable. The problem of negative pressure persists in existing freezer technology. While some existing technologies address this issue by releasing pressure to balance the internal and external pressures of the freezer, a common method involves opening and closing ventilation channels based on the pressure difference to achieve pressure balance. However, the gas channels in existing technologies are prone to blockage after frost buildup, thus affecting the pressure balance.

[0003] Chinese utility model patent application number 2024103545047 provides a solution to the above problems. However, the vent connector in this solution is directly plugged into the end stop during installation. There is a risk that the vent connector may fall off during assembly and mold prototyping, allowing foaming agent to enter the vent and affecting the air pressure balance. The current temporary solution is that workers need to attach sponge adhesive strips during operation, which is time-consuming and laborious. Moreover, the space for attaching the strips is small, making it easy to miss the mark. Summary of the Invention

[0004] The purpose of this invention is to provide a vent assembly for an automatic pressure-balancing freezer. The assembly uses a spring button connection method, which makes the installation of the vent assembly more secure and less likely to fall off. This reduces the problem of vent connectors falling off due to worker operation, mold prototyping, etc., saving time and effort, improving work efficiency, and enhancing the work experience.

[0005] This utility model includes a box cover, with end stops installed at both ends of the box cover and an adsorption cover liner installed at the bottom of the box cover; a vent assembly is installed on the inner side of the box cover, the vent assembly includes an inlet connector, a support connector and a frost-blocking box connected in sequence, the frost-blocking box has an air outlet that communicates with the inside of the box body; the inlet connector includes an air inlet chamber, which is installed in the mounting groove of the end stop and communicates with the outside of the box body.

[0006] Preferably, an air guide pipe is connected to the rear end of the air intake chamber, and a first connecting seat is installed at the rear end of the air guide pipe.

[0007] Preferably, a sealing foam is fitted onto the first connecting seat.

[0008] Preferably, the side wall of the air intake chamber is provided with an installation cavity, and a button is installed in the installation cavity. The button includes a touch head and a button body extending downward from the lower part of the touch head. A spring cavity is provided in the button body, and a spring is installed in the spring cavity. The spring pushes the touch head out of the installation cavity.

[0009] Preferably, the bottom of the mounting cavity is provided with two symmetrical bosses, and the lower left and right sides of the button body are provided with buckles that engage with the bosses.

[0010] Preferably, the support connector includes a second connector connected to the first connector, a support tube connected below the second connector, a first connector provided on the side of the support tube, and a third connector installed at the bottom of the support tube.

[0011] Preferably, the defrosting box includes a box body, a box cover installed at the bottom of the box body, an air vent on the box cover that communicates with the inside of the box body, and defrosting material placed inside the box body.

[0012] Preferably, a second connecting pipe is provided on the front side of the box body, and the second connecting pipe is connected to the first connecting pipe through a flexible tube.

[0013] In summary, this utility model has the following beneficial effects:

[0014] This component retains the original function of balancing internal and external air pressure, solving the problem of difficulty in opening the door; the use of a spring button connection method makes the installation of the vent component more secure and less likely to fall off, reducing the problem of vent connectors falling off due to worker operation, mold prototyping, etc., saving time and effort, improving work efficiency, and enhancing the work experience; at the same time, the frost box can dry the air entering the freezer, preventing moisture in the air from condensing into frost and clogging the air outlet, thus affecting the air pressure balance. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the box lid structure;

[0016] Figure 2 is a schematic diagram of the box lid structure.

[0017] Figure 3 is a partial structural diagram of the installation location of the ventilation hole assembly inside the box cover;

[0018] Figure 4 is a partial structural diagram of the installation location of the ventilation hole assembly inside the box cover (II).

[0019] Figure 5 is a structural schematic diagram of the inlet connector (rotated 180 degrees in normal installation state);

[0020] Figure 6 is a schematic diagram of the button structure;

[0021] Figure 7 is a schematic diagram of the connection between the inlet connector and the end stop;

[0022] Figure 8 is a structural schematic diagram of the supporting connector;

[0023] Figure 9 is a schematic diagram of the anti-frost box.

[0024] In the diagram: 1. Box lid; 2. End stop; 201. Mounting groove; 202. Limiting cavity; 3. Adsorption cover; 4. Inlet connector; 401. Air inlet cavity; 402. Air guide tube; 403. First connecting seat; 404. Sealing foam; 405. Mounting cavity; 406. Boss; 5. Support connector; 501. Second connecting seat; 502. Support tube; 503. First connecting tube; 504. Third connecting seat; 6. Frostproof box; 601. Air outlet; 602. Box body; 603. Box lid; 604. Second connecting tube; 7. Button; 701. Touch head; 702. Button body; 703. Spring cavity; 704. Buckle; 8. Spring; 9. Hose. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] The orientations mentioned in this specification refer to the orientation of the vent assembly of the automatic balancing air pressure freezer when it is working normally. They do not limit the orientation during storage and transportation, but only represent relative positional relationships, not absolute positional relationships.

[0027] As shown in Figures 1 to 3, a vent assembly for an automatic pressure-balancing freezer includes a cover 1, with end stops 2 installed at both ends of the cover 1, and an adsorption cover liner 3 installed at the bottom of the cover 1. A vent assembly is installed on the inner side of the cover 1, and the vent assembly includes an inlet connector 4, a support connector 5, and a defrost box 6 connected in sequence. The defrost box 6 has an air outlet 601 that communicates with the interior of the freezer. The inlet connector 4 includes an air inlet chamber 401, which is installed in the mounting groove 201 of the end stop 2 and communicates with the exterior of the freezer.

[0028] As shown in Figures 4 and 5, the rear end of the air intake chamber 401 is connected to an air guide pipe 402, and the rear end of the air guide pipe 402 is equipped with a first connecting seat 403. A sealing foam 404 is sleeved on the first connecting seat 403 to improve the sealing performance at the first connecting seat 403.

[0029] As shown in Figures 5 and 6, an installation cavity 405 is provided on the side wall of the air intake cavity 401. A button 7 is installed in the installation cavity 405. The button 7 includes a touch head 701 and a button body 702 extending downward from the lower part of the touch head 701. A spring 8 cavity 703 is provided in the button body 702. A spring 8 is installed in the spring 8 cavity 703. The spring 8 pushes the touch head 701 out of the installation cavity 405. Two bosses 406 are symmetrically provided at the bottom of the installation cavity 405. Buckles 704 are provided on the left and right sides of the lower part of the button body 702. The buckles 704 are engaged with the bosses 406 to prevent the button 7 from being ejected.

[0030] As shown in Figure 7, a limiting cavity 202 is provided on the mounting groove 201 of the end stop 2 at the corresponding position of the button 7. When the inlet connector 4 is connected to the end stop 2, the touch head 701 of the button 7 is pressed down, and then the inlet connector 4 is pushed in. When the touch head 701 of the button 7 corresponds to the limiting cavity 202 on the end stop 2, the touch head 701 of the button 7 pops out, so that the two parts are installed firmly and there is no risk of falling off.

[0031] As shown in Figure 8, the support connector 5 includes a second connector 501 connected to the first connector 403. A support tube 502 is connected to the lower part of the second connector 501. The first connector 503 is provided on the side of the support tube 502. A third connector 504 is installed at the lower part of the support tube 502. The air inlet chamber 401, the air guide tube 402, the first connector 403, the second connector 501, the support tube 502 and the first connector 503 are internally connected. The third connector 504 is adhered to the inner wall of the adsorption cover liner 3, thereby fixing the lower part of the support connector 5.

[0032] As shown in Figure 9, the frost-blocking box 6 includes a box body 602, a box cover 603 installed at the lower part of the box body 602, an air outlet 601 communicating with the inside of the box body on the box cover 603, and frost-blocking material placed inside the box body 602. Preferably, in this embodiment, the frost-blocking material is a dry filter material or a bactericidal material with adsorption function, so as to ensure that the penetrating air is dry and clean. A second connecting pipe 604 is provided on the front side of the box body 602, and the second connecting pipe 604 is connected to the first connecting pipe 503 through a flexible hose 9.

[0033] During use, the temperature inside the freezer is low, which reduces the air pressure. External air enters the freezer compartment through the inlet connector 4, the support connector 5, and the defrost box 6, which helps to balance the air pressure and solve the problem of difficulty in opening the door. The defrost material in the defrost box 6 can filter water vapor in the air and prevent water vapor from frosting and blocking the air outlet 601.

[0034] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A vent assembly for an automatically balancing air pressure freezer, comprising a lid (1), wherein end stops (2) are respectively installed at the left and right ends of the lid (1), and an adsorption cover liner (3) is installed at the lower part of the lid (1); characterized in that: The inner side of the box cover (1) is equipped with a vent assembly. The vent assembly includes an inlet connector (4), a support connector (5), and a defrost box (6) connected in sequence. The defrost box (6) has an air outlet (601) that communicates with the inside of the box. The inlet connector (4) includes an air inlet chamber (401), which is installed in the mounting groove (201) on the end stop (2). The air inlet chamber (401) communicates with the outside of the box.

2. The air vent assembly for use in an auto-balance gaseous pressure refrigerator according to claim 1, wherein: The rear end of the air intake chamber (401) is connected to an air guide pipe (402), and the rear end of the air guide pipe (402) is equipped with a first connector (403).

3. The vent assembly for an automatic pressure-balancing freezer as described in claim 2, characterized in that: A sealing foam (404) is fitted onto the first connecting seat (403).

4. The air vent assembly for use in an auto-balance gaseous pressure refrigerator according to claim 1, wherein: The air intake chamber (401) has a mounting cavity (405) on its cavity wall. A button (7) is installed in the mounting cavity (405). The button (7) includes a touch head (701) and a button body (702) extending downward from the lower part of the touch head (701). A spring (8) cavity (703) is provided in the button body (702). A spring (8) is installed in the spring (8) cavity (703). The spring (8) pushes the touch head (701) out of the mounting cavity (405).

5. An air vent assembly for use in an auto-balance gaseous pressure refrigerator as defined in claim 4, wherein: The bottom of the mounting cavity (405) is symmetrically provided with two protrusions (406), and the lower left and right sides of the button body (702) are provided with buckles (704), which are engaged with the protrusions (406).

6. The air vent assembly for use in an auto-balance gas pressure refrigerator as claimed in claim 2, wherein: The support connector (5) includes a second connector (501) connected to the first connector (403), a support tube (502) connected below the second connector (501), a first connector (503) provided on the side of the support tube (502), and a third connector (504) installed at the lower part of the support tube (502).

7. An air vent assembly for use in an auto-balance gaseous pressure refrigerator as defined in claim 6, wherein: The frost-blocking box (6) includes a box body (602), a box cover (603) is installed on the lower part of the box body (602), the box cover (603) is provided with an air outlet (601) communicating with the inside of the box body, and frost-blocking material is placed inside the box body (602).

8. An air vent assembly for use in an auto-balance gaseous pressure refrigerator as defined in claim 7, wherein: The front side of the box (602) is provided with a second connecting pipe (604), which is connected to the first connecting pipe (503) through a hose (9).

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