CN111981746B

CN111981746B - Air pressure balance assembly and medical refrigeration equipment

Info

Publication number: CN111981746B
Application number: CN202010873386.2A
Authority: CN
Inventors: 杨光照; 张正阳; 冯贵武; 苗晨雨
Original assignee: Zhongke Meiling Cryogenics Co Ltd
Current assignee: Zhongke Meiling Cryogenics Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2022-05-13
Anticipated expiration: 2040-08-26
Also published as: CN111981746A

Abstract

The invention provides an air pressure balance assembly and medical refrigeration equipment, and relates to a refrigeration device. The air pressure balancing assembly comprises an air vent valve assembly and a heating assembly, wherein the air vent valve assembly is arranged at a decompression channel, the decompression channel is used for enabling the decompression channel to be communicated to communicate a storage chamber and an outdoor space on two sides of the decompression channel or enabling the decompression channel to be switched off, and the heating assembly is suitable for heating the air vent valve assembly. According to the technical scheme, the ventilation valve assembly is arranged in the decompression channel, so that the air pressure in the box body is quickly and effectively balanced, the situation that the door cannot be opened due to too low air pressure in the box body is avoided, and the user experience is improved; meanwhile, the pressure on the door seal and the door shell is effectively reduced, and deformation is avoided, so that the stability of the medical refrigeration equipment is improved; through setting up heating element to ventilative valve unit spare heating, effectively prevent the liquefaction of vapor or desublimation to improve the validity of decompression passageway.

Description

Air pressure balance assembly and medical refrigeration equipment

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to an air pressure balance assembly and medical refrigeration equipment.

Background

The existing medical refrigeration equipment has the problem of difficult door opening in use: introduce ambient air in the box when opening the door at every turn, after closing the door, because be the refrigeration environment in the box for the gas volume that seals in the box reduces, and the incasement gas pressure reduces, and the chamber door is tightly inhaled on the box, causes the secondary difficulty of opening the door, and the reduction of the interior gas pressure of box causes a door to seal and a door shell pressurized deformation simultaneously, uses for the user and brings a lot of inconveniently, leads to user's use to experience relatively poor.

Disclosure of Invention

The invention solves the problems of difficult door opening and deformation of the box body of the refrigeration equipment caused by the reduction of air pressure in the box body.

In order to solve the above problems, the present invention provides an air pressure balancing assembly, including an air vent valve assembly and a heating assembly, wherein the air vent valve assembly is disposed at a decompression passage, the decompression passage is used for enabling the decompression passage to be communicated with a storage chamber and an outdoor space at two sides of the decompression passage or enabling the decompression passage to be switched off, and the heating assembly is adapted to heat the air vent valve assembly.

According to the air pressure balancing assembly, the air pressure in the box body is quickly and effectively balanced by arranging the air permeable valve assembly in the decompression channel, the situation that the door cannot be opened due to too low air pressure in the box body is avoided, and user experience is improved; meanwhile, the pressure on the door seal and the door shell is effectively reduced, and deformation is avoided, so that the stability of the medical refrigeration equipment is improved; heating to ventilative valve unit spare through setting up heating element effectively prevents the liquefaction of vapor or desublimation to improve the validity of decompression passageway, effectively guaranteed the effective of atmospheric pressure balance process and gone on, improved user experience.

Preferably, the air pressure balancing assembly further includes a solenoid valve, the solenoid valve is connected to the heating assembly, the solenoid valve and the heating assembly are located on the cooling/heating circulation loop, and the solenoid valve is adapted to communicate the heating assembly with the compressor in an open state.

The air pressure balance assembly provided by the invention adjusts the heating process through the electromagnetic valve, effectively utilizes the energy of the compressor, and realizes the full utilization of the self energy of the medical refrigeration equipment.

Preferably, the air pressure balancing assembly further comprises a temperature sensing probe, the temperature sensing probe is arranged at the decompression passage and is suitable for detecting the temperature in the decompression passage, and the electromagnetic valve is suitable for being opened and closed according to the temperature detected by the temperature sensing probe.

According to the air pressure balancing assembly, the temperature in the decompression channel is detected by the temperature sensing probe, when the temperature is lower than a set value, the electromagnetic valve is opened, the heating assembly is heated, the ventilation valve assembly is further heated, and when the temperature is higher than the set value, the electromagnetic valve is closed, so that the self energy of medical refrigeration equipment is effectively utilized, the air pressure in the box body is quickly and effectively balanced, the situation that the air pressure in the box body is too low to open the door is avoided, and the user experience is improved.

Preferably, the air pressure balancing assembly further comprises a sheath, the air permeable valve assembly being disposed within the sheath, the heating assembly being disposed around the sheath.

According to the air pressure balancing assembly, the heating assembly is arranged around the sheath, so that the sheath is uniformly heated, and then the decompression channel and the ventilation valve assembly arranged in the decompression channel are heated, so that the steam is effectively prevented from being liquefied or desublimated, the effectiveness of the decompression channel is improved, the effective operation of the air pressure balancing process is effectively ensured, and the user experience is improved.

Preferably, the ventilation valve assembly comprises a water valve, a lining box and a box cover, the lining box is detachably connected with the box cover, the lining box and the box cover are of a hollow structure, and the water valve is arranged between the lining box and the box cover.

According to the air pressure balancing assembly, the ventilation valve assembly comprises the water valve, the lining box and the box cover, when water vapor passes through the ventilation valve assembly, the water valve, the lining box and the box cover are heated through the heating assembly, and therefore the water vapor is effectively prevented from being liquefied or desublimated, the effectiveness of a decompression channel is improved, the effective performance of an air pressure balancing process is effectively guaranteed, and user experience is improved.

Preferably, the breather valve assembly further comprises a first orifice cover located between the outdoor space and the decompression passage, and an air hole of the first orifice cover is communicated with the inner cavity of the liner box.

According to the air pressure balance assembly, the air is filtered by the hole cover, so that air impurities are effectively screened out, and the purity of water vapor entering the air-permeable valve assembly is guaranteed.

Preferably, the ventilation valve assembly further comprises a ventilation pipe, one end of the ventilation pipe is connected with the inner cavity of the box cover, and the ventilation pipe is suitable for communicating the water valve with the storage chamber.

According to the air pressure balancing assembly, the vent pipe is arranged to be communicated with the water valve and the storage chamber, so that the heating time of the steam is increased, and the steam can be effectively prevented from being liquefied or desublimated, so that the effectiveness of the decompression channel is improved, the effective operation of the air pressure balancing process is effectively ensured, and the user experience is improved.

Preferably, the vent pipe is a length-adjustable part.

According to the air pressure balancing assembly, the vent pipe is arranged to be a part with adjustable length, and adjustment is performed according to the thickness of the bubble layer of the box body, so that actual requirements are met, the evaporation or the desublimation of water vapor is effectively prevented, the effectiveness of a decompression channel is improved, the effective operation of an air pressure balancing process is effectively guaranteed, and user experience is improved.

Preferably, the breather valve assembly further comprises a second hole cover, one end of the second hole cover is connected with the other end of the breather pipe, and the other end of the second hole cover is fixedly connected with a metal plate inner container of the storage chamber.

According to the air pressure balancing assembly, one end of the second hole cover is connected with the other end of the vent pipe, and the other end of the second hole cover is fixedly connected with the metal plate inner container of the box body, so that the effective fixation of the vent valve assembly is realized, the steam can be effectively prevented from being liquefied or desublimated, the effectiveness of a decompression channel is improved, the effective performance of an air pressure balancing process is effectively ensured, and the user experience is improved.

The invention also provides medical refrigeration equipment comprising the air pressure balancing assembly. The medical refrigeration equipment and the air pressure balancing component have the same advantages compared with the prior art, and the detailed description is omitted.

Drawings

FIG. 1 is a schematic cross-sectional view of a gas pressure balancing assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a vent valve assembly according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a medical refrigeration apparatus according to an embodiment of the present invention;

fig. 4 is a schematic diagram of cooling/heating of a medical cooling device according to an embodiment of the present invention.

Description of reference numerals:

1-a breather valve component, 10-a water valve, 11-a lining box, 12-a box cover, 13-a breather pipe, 14-a second hole cover, 2-a heating component, 3-a solenoid valve, 4-a temperature-sensing probe, 5-a sheath, 6-a first hole cover, 100-a storage chamber, 200-an outdoor space, 300-a decompression channel, 400-a compressor, 500-an evaporator, 600-a capillary tube, 700-a dry filter and 800-a condenser.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1, an embodiment of the present invention provides an air pressure balancing assembly, including an air vent valve assembly 1 and a heating assembly 2, wherein the air vent valve assembly 1 is disposed at a decompression passage 300, the air vent valve assembly 1 is adapted to turn on the decompression passage 300 to communicate a storage chamber 100 and an outdoor space 200 at both sides of the decompression passage 300, or to turn off the decompression passage 300, and the heating assembly 2 is adapted to heat the air vent valve assembly 1.

Specifically, in the present embodiment, the air pressure balancing assembly includes an air vent valve assembly 1 and a heating assembly 2, the air vent valve assembly 1 is disposed in a decompression passage 300, wherein, as shown in fig. 3, the decompression passage 300 is located between the storage chamber 100 and the outdoor space 200 and is used for communicating the storage chamber 100 with the outdoor space 200, ambient air of the outdoor space 200 and water vapor contained in the air can enter the storage chamber 100 from the decompression passage 300, and the conventional medical refrigeration apparatus has a problem of difficulty in opening a door in use: ambient air is introduced into the box body after the door is closed, and the box body is a refrigerating environment, so that the volume of gas sealed in the box body is reduced, the gas pressure in the box body is reduced, the box door is tightly sucked on the box body, the secondary door opening difficulty is caused, and meanwhile, the door seal and the door shell are deformed under pressure due to the reduction of the gas pressure in the box body. Therefore, the ventilation valve component 1 is arranged, the decompression channel 300 is turned off in the closed state, and the decompression channel 300 is turned on in the open state, so that the air pressure in the box body is balanced quickly and effectively, the situation that the door cannot be opened due to too low air pressure in the box body is avoided, and the user experience is improved; meanwhile, the pressure on the door seal and the door shell is effectively reduced, and deformation is avoided, so that the stability of the medical refrigeration equipment is improved. Wherein, heating element 2 is suitable for and decompresses 1 heating to ventilative valve assembly, when vapor when getting into decompression passageway 300, because the temperature is lower in the decompression passageway 300, vapor exists the possibility that liquefaction water or even desublimation formed solid ice, lead to decompressing passageway 300 and block up inefficacy, after heating element 2 heats ventilative valve assembly 1, effectively prevent the liquefaction of vapor or desublimation, thereby improve the validity of knowing the pressure passageway, effectively guaranteed the effective of atmospheric pressure balance process and gone on, user experience has been improved. Wherein water vapor in the ambient air is heated only at the airing valve assembly 1 when the ambient air enters the storage chamber 100 through the decompression passage 300.

In the embodiment, the ventilation valve assembly is arranged in the decompression channel, so that the air pressure in the box body is quickly and effectively balanced, the situation that the door cannot be opened due to too low air pressure in the box body is avoided, and the user experience is improved; meanwhile, the pressure on the door seal and the door shell is effectively reduced, and deformation is avoided, so that the stability of the medical refrigeration equipment is improved; heating to ventilative valve unit spare through setting up heating element effectively prevents the liquefaction of vapor or desublimation to improve the validity of decompression passageway, effectively guaranteed the effective of atmospheric pressure balance process and gone on, improved user experience.

Optionally, the air pressure balancing assembly further includes a solenoid valve 3, the solenoid valve 3 is connected to the heating assembly 2, the solenoid valve 3 and the heating assembly 2 are located on the cooling/heating circulation loop, and the solenoid valve 3 is adapted to communicate the heating assembly 2 with the compressor in an open state.

Specifically, in this embodiment, as shown in fig. 1, the air pressure balancing assembly further includes a solenoid valve 3, the solenoid valve 3 is connected to the heating assembly 2, as shown in fig. 4, on the cooling/heating circulation loop, based on the refrigerant flow direction, the evaporator 500, the compressor 400, the solenoid valve 3, the heating assembly 2, the condenser 800, the filter drier 700, and the capillary tube 600 are sequentially disposed, wherein the solenoid valve 3 is disposed in series with the heating assembly 2, and another pipeline is disposed between the compressor 400 and the condenser 800, and is connected in parallel with the pipeline where the solenoid valve 3 and the heating assembly 2 are disposed, so that the refrigerant normally passes through when the solenoid valve 3 is closed; when the electromagnetic valve 3 is opened, the high-temperature energy discharged by the compressor 400 heats the heating assembly 2, and the heating assembly 2 heats the vent valve assembly 1, so that the steam is effectively prevented from being liquefied or desublimated, the effectiveness of a decompression channel is improved, the effective operation of an air pressure balancing process is effectively ensured, and the user experience is improved; the heating process is controlled through the electromagnetic valve 3, and the energy of the compressor is effectively utilized, so that the energy of the medical refrigeration equipment is effectively utilized.

In this embodiment, the heating process is adjusted through the electromagnetic valve, and the energy of the compressor is effectively utilized, so that the self energy of the medical refrigeration equipment is fully utilized.

Optionally, the air pressure balancing assembly further includes a temperature sensing probe 4, the temperature sensing probe 4 is disposed at the decompression passage 300, the temperature sensing probe 4 is adapted to detect a temperature in the decompression passage 300, and the solenoid valve 3 is adapted to be opened and closed according to the temperature detected by the temperature sensing probe 4.

Specifically, in this embodiment, as shown in fig. 1, the air pressure balancing assembly further includes a temperature sensing probe 4, the temperature sensing probe 4 is disposed in the decompression passage 300, the temperature sensing probe 4 is suitable for detecting the temperature in the decompression passage 300, when the temperature is lower than the set value, the electromagnetic valve 3 is opened, the heating assembly 2 is heated and then the air permeable valve assembly 1 is heated, when the temperature is higher than the set value, the electromagnetic valve 3 is closed, thereby effectively utilizing the energy of the medical refrigeration equipment, quickly and effectively balancing the air pressure in the box, and avoiding the situation that the air pressure in the box is too low to open the door, so as to improve the user experience.

In this embodiment, detect the temperature of decompressing in the passageway through setting up the temperature sensing probe, when the temperature is less than the setting value, the solenoid valve is opened, heats heating element and then heats ventilative valve assembly, and when the temperature was higher than the setting value, the solenoid valve was closed to effectively utilize medical refrigeration equipment self energy, atmospheric pressure in the effective balanced box fast avoids the box atmospheric pressure to hang down and can't open the door excessively, in order to improve user experience.

Optionally, the air pressure balancing assembly further comprises a jacket 5, the air-permeable valve assembly 1 is disposed within the jacket 5, and the heating assembly 2 is disposed around the jacket 5.

Specifically, in this embodiment, as shown in fig. 1, the air pressure balance assembly further includes a sheath 5, the vent valve assembly 1 is disposed in the sheath 5, the heating assembly 2 surrounds the sheath 5, when the heating assembly 2 heats the vent valve assembly 1, the sheath 5 is heated at first, because the heating assembly 2 surrounds the sheath 5, so that the sheath 5 is uniformly heated, then the vent valve assembly 1 which decompresses the channel 300 and is disposed in the decompression channel 300 is heated, thereby effectively preventing the liquefaction or the desublimation of the vapor, thereby improving the effectiveness of the decompression channel 300, effectively ensuring the effective proceeding of the air pressure balance process, and improving the user experience.

In this embodiment, encircle the sheath setting through setting up heating element for the sheath is by the even heating, then to decompressing the passageway and setting up the ventilative valve assembly heating in decompressing the passageway, effectively prevents the liquefaction of vapor or the desublimation, thereby improves the validity of decompressing the passageway, has effectively guaranteed effectively going on of atmospheric pressure balance process, has improved user experience.

Optionally, the ventilation valve assembly 1 includes a water valve 10, a liner box 11 and a box cover 12, the liner box 11 is detachably connected to the box cover 12, the liner box 11 and the box cover 12 are hollow structures, and the water valve 10 is disposed between the liner box 11 and the box cover 12.

Specifically, in this embodiment, as shown in fig. 1 and fig. 2, the breather valve assembly 1 includes a water valve 10, a liner box 11, and a box cover 12, the liner box 11 is detachably connected to the box cover 12, the liner box 11 and the box cover 12 are of a hollow structure, the liner box 11 protrudes toward one side of the outdoor space 200 to form a hollow portion, the box cover 12 protrudes toward one side of the storage chamber 100 to form a hollow portion, the water valve 10 is disposed at the hollow portion between the liner box 11 and the box cover 12, when water vapor enters the breather valve assembly 1, the water vapor firstly enters from an opening of the liner box 11, then passes through the water valve 10, and finally is discharged from an opening of the box cover 12, and after the breather valve assembly 1 is heated by the heating assembly 2, the water vapor is effectively prevented from being liquefied or condensed, so as to improve the effectiveness of the decompression channel 300, effectively ensure the effective performance of the air pressure balancing process, and improve user experience.

The lining box 11 and the box cover 12 are both provided with two side openings, a cavity is arranged inside the lining box 11 and the box cover 12, the water valve 10 is arranged in the cavity, one side opening of the lining box 11 is communicated with the outdoor space 200 and the inner cavity of the lining box 11, the other side opening of the lining box 11 is opposite to one side opening of the box cover 12 so as to be communicated with the inner cavity of the lining box 11 and the inner cavity of the box cover 12, the other side opening of the box cover 12 is connected with one end of the vent pipe 13 so as to be communicated with the inner cavity of the box cover 12 and the inner cavity of the vent pipe 13, and the other end of the vent pipe 13 is communicated with the second hole cover 14 so as to be communicated with the inner cavity of the vent pipe 13 and the storage chamber 100, so that the outdoor space 200, the decompression passage 300 and the storage chamber 100 are communicated.

In this embodiment, include water valve, lining box and lid through setting up ventilative valve module, when vapor passes through, through heating element to water valve, lining box and lid heating, effectively prevent vapor liquefaction or desublimation to improve the validity of decompression passageway, effectively guaranteed the effective of atmospheric pressure balance process and gone on, improved user experience.

Optionally, the breather valve assembly 1 further comprises a first orifice cover 6, the first orifice cover 6 is located between the outdoor space 200 and the decompression passage 300, and the air hole of the first orifice cover 6 is communicated with the inner cavity of the liner box 11.

Specifically, in the present embodiment, as shown in fig. 1, the breather valve assembly 1 further includes a first hole cover 6, the first hole cover 6 is located between the outdoor space 200 and the decompression channel 300, and before the water vapor enters the breather valve assembly 1, the water vapor firstly enters the tank body from the air hole of the first hole cover 6 and then enters the breather valve assembly 1 along the inner cavity of the liner box 11, so that air impurities are effectively screened out, and the purity of the water vapor entering the breather valve assembly 1 is ensured. Wherein, except the air hole on the first hole cover 6 is communicated with the air vent valve component 1, the other parts close the outdoor space 200 and the decompression channel 300.

In this embodiment, through setting up the handhole door and filtering the air, effectively screen out air impurity, guaranteed the purity of the vapor that enters into the breather valve subassembly.

Optionally, the breather valve assembly 1 further includes a breather tube 13, one end of the breather tube 13 is connected to the inner cavity of the box cover 12, and the breather tube 13 is adapted to communicate the water valve 10 with the storage chamber 100.

Specifically, in this embodiment, as shown in fig. 2, the vent valve assembly 1 further includes a vent pipe 13, one end of the air pipe 13 is connected to the inner cavity of the box cover 12, the vent pipe 13 is suitable for communicating the water valve 10 with the storage chamber 100, and the arrangement of the vent pipe 13 is equivalent to increasing the heating time of the water vapor, so that the water vapor can be effectively prevented from being liquefied or desublimated, the effectiveness of the decompression channel 300 is improved, the effective proceeding of the air pressure balancing process is effectively ensured, and the user experience is improved. The temperature sensing probe 4 can be arranged on the vent pipe 13 to improve the temperature measurement precision.

In this embodiment, through setting up permeability cell intercommunication water valve and storeroom, it is long when having increased vapor heating in other words, therefore can effectively prevent vapor liquefaction or desublimation to improve the validity of knowing the pressure passageway, effectively guaranteed the effective of atmospheric pressure balance process and gone on, improved user experience.

Optionally, the ventilation tube 13 is a length-adjustable part.

Specifically, in this embodiment, combine fig. 2 to show, permeability cell 13 is the adjustable length part, can adjust according to box bubble layer thickness to satisfy actual need, effectively prevent vapor liquefaction or desublimation, thereby improve the validity of decompression passageway 300, effectively guaranteed the effective of atmospheric pressure balance process and gone on, improved user experience.

In this embodiment, be length-adjustable part through setting up the permeability cell, adjust according to box bubble layer thickness to satisfy actual need, effectively prevent vapor liquefaction or desublimation, thereby improve the validity of knowing the pressure passageway, effectively guaranteed effective the going on of atmospheric pressure balance process, improved user experience.

Optionally, the breather valve assembly 1 further includes a second hole cover 14, one end of the second hole cover 14 is connected to the other end of the breather pipe 13, and the other end of the second hole cover 14 is fixedly connected to a sheet metal liner of the tank body for forming the storage chamber 100.

Specifically, in this embodiment, as shown in fig. 2, the vent valve assembly 1 further includes a second hole cover 14, one end of the second hole cover 14 is connected to the other end of the vent pipe 13, and the other end of the second hole cover 14 is fixedly connected to the sheet metal liner of the box, so as to effectively fix the vent valve assembly 1, thereby effectively preventing the water vapor from being liquefied or condensed, thereby improving the effectiveness of the decompression channel 300, effectively ensuring the effective performance of the air pressure balancing process, and improving the user experience. Wherein, the box panel beating inner bag is used for forming the storeroom 100, and the storeroom 100 is wrapped up for the box panel beating inner bag promptly. The second hole cover 14 is also provided with air holes for passing air, and the air holes are communicated with the air flow channels of the vent pipes 13.

In this embodiment, the one end through setting up the second handhole door is connected with the other end of permeability cell, the other end and the box panel beating inner bag fixed connection of second handhole door to realize the effective fixed of permeability valve subassembly, therefore can effectively prevent vapor liquefaction or desublimation, thereby improve the validity of decompression passageway, effectively guaranteed effective the going on of atmospheric pressure balance process, improved user experience.

Another embodiment of the invention provides a medical refrigeration apparatus comprising a gas pressure equalization assembly as described in any of the above. The medical refrigeration equipment and the air pressure balancing component have the same advantages compared with the prior art, and the detailed description is omitted.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. An air pressure equalizing assembly, characterized by comprising an air-permeable valve assembly (1) and a heating assembly (2), the air-permeable valve assembly (1) being disposed at a decompression passage (300), the air-permeable valve assembly (1) being adapted to turn on the decompression passage (300) to communicate a storage chamber (100) and an outdoor space (200) at both sides of the decompression passage (300) or turn off the decompression passage (300), the heating assembly (2) being adapted to heat the air-permeable valve assembly (1);

the ventilation valve assembly (1) comprises a water valve (10), a lining box (11) and a box cover (12), the lining box (11) is detachably connected with the box cover (12), the lining box (11) and the box cover (12) are of hollow structures, and the water valve (10) is arranged between the lining box (11) and the box cover (12); the lining box (11) and the box cover (12) are both provided with two side openings, cavities are arranged inside the lining box (11) and the box cover (12), the water valve (10) is arranged in the cavities, one side opening of the lining box (11) is communicated with the outdoor space (200) and the inner cavity of the lining box (11), and the other side opening of the lining box (11) is opposite to one side opening of the box cover (12).

2. The air pressure balancing assembly according to claim 1, further comprising a solenoid valve (3), the solenoid valve (3) being connected to the heating assembly (2), the solenoid valve (3) and the heating assembly (2) being located on a cooling/heating circulation circuit, the solenoid valve (3) being adapted to place the heating assembly (2) in communication with a compressor.

3. The air pressure balancing assembly according to claim 2, further comprising a temperature sensing probe (4), wherein the temperature sensing probe (4) is disposed at the decompression passage (300), the temperature sensing probe (4) is adapted to detect a temperature inside the decompression passage (300), and the solenoid valve (3) is adapted to open and close according to the temperature detected by the temperature sensing probe (4).

4. The air pressure equalizing assembly according to claim 1, further comprising a jacket (5), the air-permeable valve assembly (1) being disposed within the jacket (5), the heating assembly (2) being disposed around the jacket (5).

5. The air pressure equalizing assembly of claim 1, wherein the breather valve assembly (1) further comprises a first orifice cover (6), the first orifice cover (6) being located between the outdoor space (200) and the decompression channel (300), the air hole of the first orifice cover (6) being in communication with the inner cavity of the liner box (11).

6. The air pressure balancing assembly of claim 1, wherein the vent valve assembly (1) further comprises a vent tube (13), one end of the vent tube (13) being connected to the inner cavity of the box cover (12), the vent tube (13) being adapted to communicate the water valve (10) with the storage chamber (100).

7. An air pressure equalizing assembly according to claim 6, characterized in that the gas permeable tube (13) is a length-adjustable part.

8. The air pressure balancing assembly according to claim 6, wherein the breather valve assembly (1) further comprises a second hole cover (14), one end of the second hole cover (14) is connected with the other end of the breather pipe (13), and the other end of the second hole cover (14) is fixedly connected with a box sheet metal liner for forming the storage chamber (100).

9. A medical refrigeration apparatus, comprising a gas pressure equalizing assembly as in any one of claims 1 to 8.