CN108592494A - A kind of freezer box air pressure balance structure and refrigerator - Google Patents
A kind of freezer box air pressure balance structure and refrigerator Download PDFInfo
- Publication number
- CN108592494A CN108592494A CN201810239592.0A CN201810239592A CN108592494A CN 108592494 A CN108592494 A CN 108592494A CN 201810239592 A CN201810239592 A CN 201810239592A CN 108592494 A CN108592494 A CN 108592494A
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- Prior art keywords
- channel section
- movable part
- freezer box
- air pressure
- pressure balance
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/047—Pressure equalising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention discloses a kind of freezer box air pressure balance structure and refrigerators, are related to technical field of refrigeration equipment, avoid movable part from failing on the basis of being difficult to the problem of opening alleviating door body, prevent cold from revealing.The freezer box air pressure balance structure includes gas passage, gas passage includes the first passage section and second channel section by extending successively inwardly on the outside of freezer box, the bottom end of second channel section is connect with first passage section, second channel section can be oriented to by its first movable part of inner surface pair, so that the first movable part can rise under the action of freezer box exterior space thrust gas along second channel section, to open gas passage, and without departing from the top of second channel section, and make the first movable part that can decline under the effect of gravity along second channel section, to block gas passage, and without departing from the bottom end of second channel section.The present invention is used for equilibrium freezing body inside and outside air pressure.
Description
Technical field
The present invention relates to technical field of refrigeration equipment more particularly to a kind of freezer box air pressure balance structure and refrigerators.
Background technology
In actual life, user is frequently encountered door body in refrigeration equipment lower using cryogenic temperatures such as refrigerators and is closing
The phenomenon that being difficult to open in a period of time behind the door, this is because the temperature inside the box is low so that air pressure is less than external environment institute after closing the door
It causes.
In order to alleviate the above problem, generally use air pressure balance structure as shown in Figure 1 in the prior art, the air pressure balance
Structure includes gas passage 01, and for being connected to external environment, top 012 is used for and connects in case for the bottom end 011 of gas passage 01
Logical, the top of gas passage 01 is equipped with movable part 02, when air pressure makes less than external environment the gas pair in external environment in case
When the thrust of movable part 02 is more than the gravity of movable part 02, movable part 02 rises under the action of the thrust, to open gas
The top 012 in body channel 01, and then make gas in external environment into cartonning, tandem-driving bogie inner and outer air pressure, you can alleviate door body
The problem of being difficult to open；When air pressure makes the gas in external environment be less than the thrust of movable part 02 close to external environment in case
When the gravity of movable part 02, movable part 02 declines under the action of the gravity, to block the top 012 of gas passage 01,
Prevent cold from revealing.
In the air pressure balance structure, in lifting, gag lever post 03 can accordingly move movable part 02 in limit hole 04, with
Ensure that after movable part 02 declines the top 012 of gas passage 01 can be blocked, however, gag lever post 03 is it cannot be guaranteed that always along vertical side
To movement, i.e. gag lever post 03 is possible to tilt, and when gag lever post 03 tilts, the size of gag lever post 03 in the horizontal direction can be more than
The internal diameter of limit hole 04, this can cause gag lever post 03 and limit hole 04 stuck, and then movable part 02 is caused to fail.
Invention content
A kind of freezer box air pressure balance structure of the embodiment of the present invention offer and refrigerator can be difficult to open alleviating door body
The problem of, prevent cold reveal on the basis of avoid movable part from failing.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
An embodiment of the present invention provides a kind of freezer box air pressure balance structure, including gas passage, the gas passages
Include that the first passage section extended successively inwardly by freezer box outside and second channel section, the second channel section are located at institute
The upside of first passage section is stated, the bottom end of the second channel section is connect with the first passage section, in the second channel section
Equipped with the first movable part, the second channel section can be oriented to first movable part by its inner surface, so as to work as institute
When stating freezer box exterior space gas and being more than the gravity of first movable part to the thrust of first movable part, described the
One movable part rises under the action of the thrust along the second channel section, to open the gas passage, and without departing from institute
The top for stating second channel section, when the freezer box exterior space gas is less than described the to the thrust of first movable part
When the gravity of one movable part, first movable part declines under the action of the gravity along the second channel section, to block
The gas passage, and without departing from the bottom end of the second channel section.
The embodiment of the present invention additionally provides a kind of refrigerator, including babinet and door body, and the babinet and the door body pass through hinge
Chain link is equipped with above-mentioned freezer box air pressure balance structure in the door body, and is used on the gas passage and the freezing
It is blocked by the hinge one end of babinet exterior space connection.
Freezer box air pressure balance structure provided in an embodiment of the present invention and refrigerator, due to including gas passage, the gas
Body channel includes the first passage section and second channel section by extending successively inwardly on the outside of freezer box, the second channel section
Positioned at the upside of the first passage section, the bottom end of the second channel section is connect with the first passage section, and described second is logical
The first movable part is equipped in road section, the second channel section can be oriented to first movable part by its inner surface, with
Make when the freezer box exterior space gas is more than the gravity of first movable part to the thrust of first movable part,
First movable part rises under the action of the thrust along the second channel section, to open the gas passage, to
Make the freezer box exterior space gas enter the freezer box inner space, equilibrium freezing body inside and outside air pressure,
The problem of door body is difficult to open can be alleviated, when the freezer box exterior space gas is small to the thrust of first movable part
When the gravity of first movable part, first movable part is under the action of the gravity under the second channel section
Drop, to block the gas passage, to prevent cold from revealing；
In addition, since the second channel section by its inner surface can make described first to the guiding of first movable part
Movable part is smoothly lifted along the second channel section, therefore the first movable part will not be stuck in second channel section；Again by institute
The top without departing from second channel section when the first movable part rises along the second channel section is stated, along the second channel section
Second channel section is always positioned in lifting process without departing from the bottom end of the second channel section, i.e. the first movable part when decline
It is interior, therefore no matter whether the first movable part tilts, and second channel section is respectively less than in the size of second channel section cross-wise direction
Internal diameter, the problem of to completely avoid stuck failure.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram of freezer box air pressure balance structure in the prior art；
Fig. 2 is the explosive view of freezer box air pressure balance structure of the embodiment of the present invention；
Fig. 3 is the schematic diagram of refrigerator of the embodiment of the present invention；
Fig. 4 is that freezer box air pressure balance structure of the embodiment of the present invention is installed on the explosive view in door body；
Fig. 5 is that freezer box air pressure balance structure of the embodiment of the present invention is installed on the sectional view in door body.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only one section of point of embodiment of the invention, rather than the embodiment of full section.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "center", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on ... shown in the drawings
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or
Element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Term " first ", " second " are used for description purposes only, be not understood to indicate or imply relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also can be indirectly connected through an intermediary the connection inside two elements to be to be connected directly.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 2 to Fig. 4 is a specific embodiment of freezer box air pressure balance of embodiment of the present invention structure 100, this implementation
Freezer box air pressure balance structure 100 in example, including gas passage 1, gas passage 1 include by the outside of freezer box inwardly
The first passage section 11 and second channel section 12 extended successively, second channel section 12 are located at the upside of first passage section 11, and second
The bottom end of channel section 12 is connect with first passage section 11, the first movable part 2 is equipped in second channel section 12, second channel section 12 can
It is oriented to by its first movable part of inner surface pair 2, so that pushing away when the first movable part of freezer box exterior space gas pair 2
When power is more than the gravity of the first movable part 2, the first movable part 2 rises under the action of thrust along second channel section 12, to open
Gas passage 1, and without departing from the top of second channel section 12, when pushing away for the first movable part of freezer box exterior space gas pair 2
When power is less than the gravity of the first movable part 2, the first movable part 2 declines along second channel section 12 under gravity, to block
Gas passage 1, and without departing from the bottom end of second channel section 12.
Freezer box air pressure balance structure 100 provided in an embodiment of the present invention, due to including gas passage 1, gas passage 1
Include that the first passage section 11 extended successively inwardly by freezer box outside and second channel section 12, second channel section 12 are located at
The bottom end of the upside of first passage section 11, second channel section 12 is connect with first passage section 11, and the is equipped in second channel section 12
One movable part 2, second channel section 12 can be oriented to by its first movable part of inner surface pair 2, so that outside freezer box
When the thrust of the first movable part of space gases pair 2 is more than the gravity of the first movable part 2, the first movable part 2 is under the action of thrust
Rise along second channel section 12, to open gas passage 1, to make the gas of freezer box exterior space enter freezer box
Inner space (as shown in arrow direction), equilibrium freezing body inside and outside air pressure, you can alleviate the problem of door body is difficult to open, when cold
When the thrust of the first movable part of jelly babinet exterior space gas pair 2 is less than the gravity of the first movable part 2, the first movable part 2 is in weight
Decline along second channel section 12 under the action of power, to block gas passage 1, to prevent cold from revealing；
In addition, since second channel section 12 by the guiding of its first movable part of inner surface pair 2 can make 2 edge of the first movable part
Second channel section 12 smoothly lifts, therefore the first movable part 2 will not be stuck in second channel section 12；Again due to the first movable part
2 when rising along second channel section 12 without departing from the top of second channel section 12, without departing from second when declining along second channel section 12
The bottom end of channel section 12, i.e. the first movable part 2 are always positioned in lifting process in second channel section 12, thus no matter first live
Whether moving part 2 tilts, and the internal diameter of second channel section 12 is respectively less than in the size of 12 cross-wise direction of second channel section, to completely
The problem of avoiding stuck failure.
Further, gas passage 1 further includes third channel section 13, and third channel section 13 is located in second channel section 12
Side, and its bottom end is connect with second channel section 12, and the second movable part 3 is equipped in third channel section 13, third channel section 13 can lead to
It crosses its second movable part of inner surface pair 3 to be oriented to, so that when the thrust of the second movable part of freezer box exterior space gas pair 3
More than the second movable part 3 gravity when, the second movable part 3 is under the action of the thrust that itself is subject in third channel section 13
It rises, to open gas passage 1, and without departing from the top of third channel section 13, when freezer box exterior space gas pair second is lived
When the thrust of moving part 3 is less than the gravity of the second movable part 3, the second movable part 3 is under the effect of gravity along third channel section
13 decline, to block gas passage 1, and without departing from the bottom end of third channel section 13, as a result, when the first movable part 2 and second is lived
When moving part 3 opens simultaneously gas passage 1, the gas of freezer box exterior space can enter the inner space of freezer box, balance
Freezer box inner and outer air pressure, when the first movable part 2 and the second movable part 3 block gas passage 1 simultaneously, 2 He of the first movable part
Thermal insulation area can be formed between second movable part 3, to effectively prevent the temperature exchange inside and outside babinet, has thermal insulation through overtesting discovery
Area can reduce 60% or more cold draining compared to no thermal insulation area, while reduce the first movable part 2 and the second movable part 3 is frozen in failure
Possibility.
With reference to Fig. 3, third channel section 13 is arranged in the same direction with second channel section 12, and inner surface docks, and thus may be used
Third channel section 13 is set to be integrally formed with second channel section 12, to facilitate processing, at this time, it may be necessary in third channel section
13 are arranged partition board 4 with the place of docking of 12 inner surface of second channel section, and partition board 4 is equipped with for leading to third channel section 13 and second
The through-hole 41 that road section 12 is connected to, the second movable part 3 can open through-hole 41 along the rising of third channel section 13, and the second movable part 3 is along the
The decline of triple channel section 13 can block through-hole 41.
Preferably, second channel section 12 and third channel section 13 are vertically arranged, and can reduce the first movable part 2 and in this way
The contact of two channel sections, 12 inner surface, and the contact of the second movable part 3 and 13 inner surface of third channel section is reduced, to reduce
Friction between 12 inner surface of first movable part 2 and second channel section also reduces in the second movable part 3 and third channel section 13
Friction between surface.
The first movable part 2 and the second movable part 3 are both preferably sheet in the present embodiment, compare other shapes, the present embodiment
It is not only simple in structure, it is easy to process, it is at low cost, and easily controllable weight, flexibly, response is rapid for activity；It can also be according to difference
Seal request using injection-molded plaques, sheet glass, sheet metal etc., meet a variety of requirements.Example is rectangle laminated structure in Fig. 2.
It is equipped with water proof air-permeable member 5 in gas passage 1, so that the gas of exterior space can smoothly enter into inner space, puts down
Weigh freezer box inner and outer air pressure, while filtering out the moisture in gas, and frosting is generated after avoiding moisture from entering freezer box.
On the basis of the above embodiments, drier 6 (preferably molecular sieve), 6, drier are additionally provided in gas passage 1
In water proof air-permeable member 5 frosting is avoided further to absorb moisture close to the side of freezer box inner space.
On first movable part 2 and the second movable part 3 probably due to the temperature difference and generate moisture, if water proof air-permeable member 5 is located at the
Two channel sections 12 can not then stop the water on the first movable part 2 and the second movable part 3 close to the side of freezer box exterior space
Divide and enter in freezer box, therefore the preferred water proof air-permeable member 5 of the present embodiment is located at second channel section 12 inside freezer box
The side in space, when gas passage 1 further includes third channel section 13, it is close that water proof air-permeable member 5 also is located at third channel section 13
Thus the side of freezer box inner space can stop that the moisture on the first movable part 2 and the second movable part 3 enters freezer box
It is interior, to further avoid frosting.
Gas passage 1 is formed after being fastened by valve body M and valve deck N, is installing the first movable part 2 and the second movable part 3 as a result,
When can open valve deck N, to facilitate installation.
With reference to Fig. 3 and Fig. 4, the embodiment of the present invention additionally provides a kind of refrigerator, including babinet 200 and door body 300, babinet
200 are connected with door body 300 by hinge (not shown), and the freezer box gas of any of the above-described embodiment is equipped in door body 300
Balanced structure 100 is pressed, and one end A on gas passage 1 for being connected to freezer box exterior space is blocked by hinge.
Refrigerator provided in an embodiment of the present invention, since freezer box air pressure balance structure 100 includes gas passage 1, gas
Channel 1 includes the first passage section 11 and second channel section 12 by extending successively inwardly on the outside of freezer box, second channel section
12 are located at the upside of first passage section 11, and the bottom end of second channel section 12 is connect with first passage section 11, in second channel section 12
Equipped with the first movable part 2, second channel section 12 can be oriented to by its first movable part of inner surface pair 2, so as to work as household freezer
When the thrust of the first movable part of space gases pair 2 is more than the gravity of the first movable part 2 outside body, the first movable part 2 is in thrust
Rise along second channel section 12 under effect, to open gas passage 1, to make the gas of freezer box exterior space enter freezing
The inner space of babinet, equilibrium freezing body inside and outside air pressure, you can alleviate the problem of door body 300 is difficult to open, work as freezer box
When the thrust of the first movable part of exterior space gas pair 2 is less than the gravity of the first movable part 2, work of first movable part 2 in gravity
Declined along second channel section 12 with lower, to block gas passage 1, to prevent cold from revealing；
In addition, since second channel section 12 by the guiding of its first movable part of inner surface pair 2 can make 2 edge of the first movable part
Second channel section 12 smoothly lifts, therefore the first movable part 2 will not be stuck in second channel section 12；Again due to the first movable part
2 when rising along second channel section 12 without departing from the top of second channel section 12, without departing from second when declining along second channel section 12
The bottom end of channel section 12, i.e. the first movable part 2 are always positioned in lifting process in second channel section 12, thus no matter first live
Whether moving part 2 tilts, and the internal diameter of second channel section 12 is respectively less than in the size of 12 cross-wise direction of second channel section, to completely
The problem of avoiding stuck failure；
The installation site of the air pressure balance structure 100 is ingenious, for empty with freezer box outside on gas passage 1 after installation
Between one end A for being connected to blocked by hinge, to be had an impact to the appearance of refrigerator, be used on gas passage 1 and household freezer
One end B of body inner space connection can be by being connected to inside the sealing channel and freezer box of tracheae or sealing formation of foam.
It is equipped with hinge with reference to Fig. 4 and Fig. 5, in door body 300 and reinforces iron 400, freezer box air pressure balance structure 100 is fixed on
Hinge is reinforced on iron 400, specifically, can first fix freezer box air pressure balance structure 100 by way of being bonded or being clamped
Reinforce on iron 400 in hinge, balanced structure 100 and hinge are then reinforced iron 400, and this is integrally fastened in door body 300, most
The position of freezer box air pressure balance structure 100 is fixed in filling-foam material in door body 300 afterwards, is cut with scissors as a result, fixed
Chain reinforces that while iron 400 the freezer box air pressure balance structure 100 can be fixed, to keep installation simpler, in addition, not
It needs specially to play screw in door body 300 and fix, the problem of so as to avoid 300 structural strength of door body is weakened.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of freezer box air pressure balance structure, which is characterized in that including gas passage, the gas passage includes by freezing
The first passage section and second channel section, the second channel section extended successively inwardly on the outside of babinet is located at the first passage
The upside of section, the bottom end of the second channel section are connect with the first passage section, and first is equipped in the second channel section and is lived
Moving part, the second channel section can be oriented to first movable part by its inner surface, so as to work as the freezer box
When exterior space gas is more than the gravity of first movable part to the thrust of first movable part, first movable part exists
Rise along the second channel section under the action of the thrust, to open the gas passage, and without departing from the second channel
The top of section, when the freezer box exterior space gas is less than first movable part to the thrust of first movable part
When gravity, first movable part declines under the action of the gravity along the second channel section, logical to block the gas
Road, and without departing from the bottom end of the second channel section.
2. freezer box air pressure balance structure according to claim 1, which is characterized in that the gas passage further includes
Triple channel section, the third channel section is located on the upside of the second channel section, and its bottom end is connect with the second channel section, institute
It states and is equipped with the second movable part in third channel section, the third channel section can carry out second movable part by its inner surface
It is oriented to, so that when the freezer box exterior space gas is more than second movable part to the thrust of second movable part
When gravity, second movable part rises under the action of the thrust that itself is subject to along the third channel section, to open
The gas passage, and without departing from the top of the third channel section, when the freezer box exterior space gas is to described
When the thrust of two movable parts is less than the gravity of second movable part, second movable part is under the effect of gravity along institute
The decline of third channel section is stated, to block the gas passage, and without departing from the bottom end of the third channel section.
3. freezer box air pressure balance structure according to claim 2, which is characterized in that the third channel section with it is described
Second channel section is arranged in the same direction, and inner surface docks, the third channel section and the second channel section inner surface
Partition board is equipped at docking, the partition board is equipped with the through-hole for the third channel section to be connected to the second channel section,
Second movable part can open the through-hole along third channel section rising, and second movable part is along the third channel
Section, which declines, can block the through-hole.
4. freezer box air pressure balance structure according to claim 2, which is characterized in that the second channel section and described
Third channel Duan Jun is vertically arranged.
5. freezer box air pressure balance structure according to claim 2, which is characterized in that first movable part and described
Second movable part is sheet.
6. freezer box air pressure balance structure according to any one of claims 1 to 5, which is characterized in that the gas
Water proof air-permeable member is equipped in channel.
7. freezer box air pressure balance structure according to claim 6, which is characterized in that be additionally provided in the gas passage
Drier, the drier are located at side of the water proof air-permeable member close to the freezer box inner space.
8. freezer box air pressure balance structure according to claim 6, which is characterized in that the water proof air-permeable member is located at institute
State side of the second channel section close to the freezer box inner space.
9. a kind of refrigerator, including babinet and door body, the babinet and the door body are connected through the hinge, which is characterized in that described
It is equipped with freezer box air pressure balance structure according to any one of claims 1 to 8 in door body, and is used on the gas passage
It is blocked by the hinge one end being connected to the freezer box exterior space.
10. refrigerator according to claim 9, which is characterized in that be equipped with hinge in the door body and reinforce iron, the household freezer
Body air pressure balance structure, which is fixed on the hinge, to be reinforced on iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239592.0A CN108592494A (en) | 2018-03-22 | 2018-03-22 | A kind of freezer box air pressure balance structure and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239592.0A CN108592494A (en) | 2018-03-22 | 2018-03-22 | A kind of freezer box air pressure balance structure and refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN108592494A true CN108592494A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810239592.0A Pending CN108592494A (en) | 2018-03-22 | 2018-03-22 | A kind of freezer box air pressure balance structure and refrigerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806054A (en) * | 2019-11-07 | 2020-02-18 | 青岛海尔特种电冰柜有限公司 | Anti-frosting air pressure balancing device and refrigerating device |
| CN112780815A (en) * | 2019-11-07 | 2021-05-11 | 青岛海尔特种电冰柜有限公司 | Multifunctional air pressure balance valve and refrigerating device using same |
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|---|---|---|---|---|
| EP0030046A2 (en) * | 1979-12-04 | 1981-06-10 | Maccari Silvana | Pressure compensation valve, particularly for hot or cold isothermal rooms |
| CN103900326A (en) * | 2012-12-26 | 2014-07-02 | 海尔集团公司 | Device for maintaining balance of inner pressure and outer pressure of refrigerator, installation method and refrigerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110806054A (en) * | 2019-11-07 | 2020-02-18 | 青岛海尔特种电冰柜有限公司 | Anti-frosting air pressure balancing device and refrigerating device |
| CN112780815A (en) * | 2019-11-07 | 2021-05-11 | 青岛海尔特种电冰柜有限公司 | Multifunctional air pressure balance valve and refrigerating device using same |
| CN110806054B (en) * | 2019-11-07 | 2022-12-30 | 青岛海尔特种电冰柜有限公司 | Anti-frosting air pressure balancing device and refrigerating device |
| CN112780815B (en) * | 2019-11-07 | 2024-02-09 | 青岛海尔特种电冰柜有限公司 | Multifunctional air pressure balance valve and refrigerating device using same |
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Application publication date: 20180928 |