CN216555553U

CN216555553U - One-way balance valve for preventing cold leakage of refrigerator

Info

Publication number: CN216555553U
Application number: CN202122439386.4U
Authority: CN
Inventors: 孙祥; 邹海艳; 王峰; 赵霞
Original assignee: Aucma Co Ltd
Current assignee: Aucma Co Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-05-17
Anticipated expiration: 2031-10-11

Abstract

The utility model provides a one-way balance valve for preventing cold leakage of a refrigerator, which comprises a shell and a telescopic valve core, wherein the shell is provided with a valve core; the casing one end is provided with outer gas permeability, the other end is provided with interior bleeder vent, inside cavity forms the cavity, be fixed with upper fixed ring in the cavity, be filled with in the cavity of upper fixed ring top and adsorb the piece, upper fixed ring is last to be provided with exhaust hole and inlet port, exhaust hole inner wall downwardly extending forms first spacing portion, be provided with the holding portion in the first spacing portion, flexible case is arranged in the holding portion, first spacing portion inlays in the spacing portion of second, the spacing portion of second is fixed in lower fixed ring top surface, the last disk seat that has the bleeder vent that is provided with of lower fixed ring, the bleeder vent is linked together with outer gas permeability, there is the clearance between lower fixed ring lateral wall and the shells inner wall, the bottom surface is hugged closely with outer gas permeability mutually. The refrigerator realizes the rapid balance of the air pressure inside and outside the refrigerator body, avoids the loss of the cold energy inside the refrigerator body, simultaneously isolates the entering of external water vapor, and effectively reduces the power consumption and frosting amount of the refrigerator.

Description

One-way balance valve for preventing cold leakage of refrigerator

Technical Field

The utility model relates to the technical field of refrigerators, in particular to a one-way balance valve for preventing cold leakage of a refrigerator.

Background

At present, the balance valves used by the refrigerators in the market all adopt a two-phase conduction structure, and the middle of the balance valve is provided with a material for filtering gas. The balanced valve adopts non-seal structure, when the box inside of freezer produces the negative pressure, the outside air of box gets into the inside negative pressure that reduces of box through the balanced valve, but because the balanced valve is in the on-state always, lead to the inside air conditioning of box to spill through the balanced valve, the outside hot-air of box lasts and carries out convection current and heat exchange with the inside cold air of box, the freezer lasts not only can appear power consumption increase and the not up to standard situation of refrigeration under being in the cold leakage state, the vapor that carries in the inside air of entering box still can lead to the incasement to get frosted etc. secondary problem. Therefore, it is desirable to provide a one-way balancing valve for preventing cold leakage of a refrigerator.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art, and provides the one-way balance valve for preventing cold leakage of the refrigerator, which effectively eliminates negative pressure in the refrigerator, enables a refrigerator door plate to be easy to open, reduces the energy consumption of the refrigerator, and is energy-saving and environment-friendly.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a one-way balance valve for preventing cold leakage of a refrigerator comprises a shell and a telescopic valve core;

an outer air-permeable hole is formed in one end of the shell, an inner air-permeable hole is formed in the other end of the shell, a cavity is formed in the shell in a hollow mode, an upper fixing ring is fixed inside the cavity, an adsorption block is filled in the cavity between the upper fixing ring and the inner air-permeable hole, an air exhaust hole is formed in the middle position of the upper fixing ring, air inlet holes are symmetrically formed in two sides of the air exhaust hole, the inner wall of the air exhaust hole extends downwards to form a first limiting part, a conical accommodating part with a narrow top and a wide bottom is arranged inside the first limiting part, a telescopic valve core is arranged inside the groove body, the first limiting part is embedded into the second limiting part, the bottom surface of the second limiting part is fixed on the top surface of the lower fixing ring, a valve seat is formed in the middle position of the lower fixing ring in an upward protruding mode, an air-permeable hole is formed inside the valve seat, a gap exists between the side wall of the lower fixing ring and the inner wall of the shell, and the bottom surface is tightly attached to the outer air-permeable hole;

the telescopic valve core comprises a valve core and an elastic piece connected with the valve core, one end of the elastic piece is sleeved on the valve seat, the other end of the elastic piece is connected with the valve core, the valve core is arranged in the conical accommodating part of the first limiting part, and the side wall of the valve core is tightly attached to the side wall of the conical accommodating part.

Preferably, the elastic member is a compression spring.

Preferably, the valve core is a spherical valve core.

Preferably, the bottom surface of the lower fixing ring is provided with a sealing ring.

Preferably, the adsorption block is made of activated carbon.

The utility model has the following beneficial technical effects:

the utility model improves the internal structure of the traditional balance valve, controls the gas circulation inside and outside the refrigerator box body by controlling the one-way conduction of the balance valve, balances the air pressure inside and outside the box body, effectively prevents the cold air inside the refrigerator from leaking through the balance valve, reduces the convection of the gas inside and outside the refrigerator box body, reduces the heat exchange between the gas inside and outside the refrigerator box body, reduces the power consumption of the refrigerator, eliminates the negative pressure inside the refrigerator box body, ensures that the door plate of the refrigerator is easy to open, and is energy-saving and environment-friendly. Meanwhile, the adsorption block is arranged in the one-way balance valve to adsorb vapor and peculiar smell of the gas in the balance valve, so that the drying and cleaning of the gas entering the box body are ensured, and the problem of frosting in the box body is effectively solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. the air-permeable valve comprises a shell, 2 parts of inner air holes, 3 parts of outer air holes, 4 parts of an upper fixing ring, 5 parts of an adsorption block, 6 parts of an exhaust hole, 7 parts of an air inlet hole, 8 parts of a first limiting part, 9 parts of a second limiting part, 10 parts of a lower fixing ring, 11 parts of a valve seat, 12 parts of air holes, 13 parts of a valve core, 14 parts of a spring.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, terms such as "upper", "lower", "bottom", "top", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only terms of relationships determined for convenience in describing structural relationships of the components or elements of the present invention, and do not particularly indicate any components or elements of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "connected" and "connecting" should be interpreted broadly, and mean either a fixed connection or an integral connection or a detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.

The utility model is further illustrated with reference to the following figures and examples.

A one-way balance valve for preventing cold leakage of a refrigerator is arranged between a door body and a box body of the refrigerator and comprises a shell 1 and a telescopic valve core.

An outer air vent 3 is formed in one end of the shell 1, an inner air vent 2 is formed in the other end of the shell, a cavity is formed in the shell 1 in a hollow mode, an upper fixing ring 4 is fixed inside the cavity, an adsorption block 5 is filled in the cavity between the upper fixing ring 4 and the inner air vent 2, the adsorption block 5 is made of activated carbon and used for removing water vapor and peculiar smell in gas in the one-way balance valve and guaranteeing clean and dry of the gas entering the box; the middle position of the upper fixing ring 4 is provided with an exhaust hole 6, the two sides of the exhaust hole 6 are symmetrically provided with air inlet holes 7, the inner wall of the exhaust hole 6 extends downwards to form a first limit part 8, a tapered containing part with a narrow upper part and a wide lower part is arranged in the first limit part 8, the first limit part 8 is embedded in a second limit part 9, the bottom surface of the second limit part 9 is fixed on the top surface of the lower fixing ring 10, the middle position of the lower fixing ring 10 protrudes upwards to form a valve seat 11, an air hole 12 is arranged in the valve seat 11, the air hole 12 is used for communicating the containing part of the first limit part with an outer air through hole, a gap exists between the side wall of the lower fixing ring 10 and the inner wall of the shell 1, the bottom surface is tightly attached to the outer air through hole 3, and an O-shaped sealing ring is pre-pressed on the bottom surface of the lower fixing ring 10. The telescopic valve core is arranged in the first limiting part 8 and comprises a valve core 13 and a spring 14 connected with the valve core 13, the valve core 13 is a spherical valve core and is arranged in the containing part of the first limiting part, the side wall of the spherical valve core 13 is clung to the inner wall of the containing part, the bottom of the spherical valve core is fixedly connected with one end of the spring 14, and the other end of the spring 14 is sleeved on the valve seat 11.

Utilize the inside and outside atmospheric pressure of the balanced freezer box of one-way balance valve in this embodiment, through carry out foaming to the box after with one-way balance valve be fixed in between the box and the door body of freezer, one-way balance valve's working process as follows:

when the outside atmospheric pressure of freezer box is greater than the inside atmospheric pressure of box, outside gas gets into inside the casing 1 of one-way balance valve through outer gas permeability 3, solid fixed ring 10 upward movement under the outside gas extrusion for form the clearance between solid fixed ring 10 and casing 1 down, outside gas flows in the cavity of one-way balance valve through the clearance between solid fixed ring 10 and the casing 1 down, in the inlet port 7 through solid fixed ring 4 flows in adsorbing the piece 5, after adsorbing the vapor and the peculiar smell of getting rid of in the gas through adsorbing the piece 5, clean dry outside gas flows in inside the box through interior bleeder vent 2, outside gas and the inside gaseous convection current interchange of box, maintain the inside and outside atmospheric pressure balance of freezer.

When the internal air pressure of the refrigerator body is greater than the external air pressure of the refrigerator body, internal air enters the shell of the one-way balance valve through the inner air holes 2, water vapor and peculiar smell in the air are removed through the adsorption block 5, clean and dry internal air flows into the conical accommodating part of the first limiting part through the exhaust holes 6 of the upper fixing ring 4, the internal air extrudes the spherical valve core 13 to move downwards, the spring 14 compresses, a gap is formed between the spherical valve core 13 and the inner wall of the accommodating part, the internal air flows into the air holes 12 of the valve seat 11 through the gap between the spherical valve core 13 and the inner wall of the accommodating part and flows into the outside of the refrigerator body through the outer air holes 3, the internal air and the external air of the refrigerator body are subjected to convection exchange, and the internal and external air pressures of the refrigerator are kept balanced, and the loss of cold energy in the refrigerator body is avoided; when the pressure difference between the inside and the outside of the case is eliminated, the lower fixing ring falls down, the spring 14 stretches and retracts to push the spherical valve core 13 to move upwards, so that the spherical valve core 13 is embedded in the conical accommodating part of the first limiting part, and the bottom surface of the lower fixing ring 10 is restored to be in a state of being attached to the outer air vent 3 of the case 1.

Therefore, the one-way balance valve realizes quick balance of air pressure inside and outside the refrigerator body, the air pressure balance reaction is quick, the problem that the refrigerator is difficult to open the door for the second time due to the difference of the internal pressure and the external pressure is solved, and the problems that the inside of the refrigerator body leaks cold and the power consumption of the refrigerator is increased are effectively prevented. Meanwhile, the one-way balance valve in the embodiment is simple in structure, easy to machine and form and low in machining cost.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the present invention, and it should be understood by those skilled in the art that various modifications and changes may be made without inventive efforts based on the technical solutions of the present invention.

Claims

1. A one-way balance valve for preventing cold leakage of a refrigerator is characterized by comprising a shell and a telescopic valve core;

2. The one-way balancing valve for preventing cold leakage of a refrigerator as claimed in claim 1, wherein the elastic member is a spring.

3. The one-way balancing valve for preventing cold leakage of a refrigerator as claimed in claim 2, wherein the valve core is a spherical valve core.

4. The one-way balancing valve for preventing cold leakage of a refrigerator as claimed in claim 1, wherein the bottom surface of the lower fixing ring is provided with a sealing ring.

5. The one-way balancing valve for refrigerator cold leakage prevention according to claim 1, wherein the adsorption block is made of activated carbon.