CN2881471Y - Internal external pressure balancing device of low temperature freezer - Google Patents
Internal external pressure balancing device of low temperature freezer Download PDFInfo
- Publication number
- CN2881471Y CN2881471Y CNU2005201193968U CN200520119396U CN2881471Y CN 2881471 Y CN2881471 Y CN 2881471Y CN U2005201193968 U CNU2005201193968 U CN U2005201193968U CN 200520119396 U CN200520119396 U CN 200520119396U CN 2881471 Y CN2881471 Y CN 2881471Y
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- China
- Prior art keywords
- external pressure
- model
- sealed
- utility
- gasket
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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
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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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model discloses an internal external pressure balancing device of low temperature freezer, which comprises a shell, the shell is provided with an air inlet and an air outlet, the air inlet or / and the air outlet is or are sealed by the spring lutation device, said air outlet is communicated with the freezing box by the air pipe; the utility model has the advantages that: the model can ensure leak tightness of the sealing tape, at the same time, can automatically balance the pressure difference between the inside and the outside of the freezer body.
Description
Technical field
The utility model relates to cryogenic freezing box technology field, and particularly a kind of cryogenic freezing case the temperature inside the box that solves is crossed low and can't normally be opened the internal and external pressure balance device of door when forming the external and internal pressure difference.
Background technology
Existing cryogenic freezing case internal and external pressure balance structure mainly contains two kinds: a kind of is the gasket open-celled structure, and another kind is the connecting rod movement structure that opens the door.
The gasket open-celled structure is near a position open pore four of gaskets welding angle, and the pore that utilizes on the gasket to be opened carries out the inside and outside pressure compensation of household freezer.Yet because the aperture of pore is less on the gasket, the outer water vapour of cold air in the household freezer and case condenses at the pore place and the obstruction pore that freezes, and makes the pore of gasket lose the external and internal pressure compensating action.
The connecting rod movement structure that opens the door is provided in a side of on the freezer door handle, when opening the door, action along with door handle, the connecting rod actuating mechanism of opening the door action pulling gasket, make gasket and refrigerated cabinet leave one section space, the household freezer outer air enters in the case by the space between gasket and the household freezer, thereby realizes the household freezer internal and external pressure balance.Yet the connecting rod actuating mechanism causes gasket distortion easily even damages and influence the sealing property of gasket, causes the household freezer cold air to leak.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of cryogenic freezing case internal and external pressure balance device of autobalance casing external and internal pressure difference when guaranteeing the gasket sealing property.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of cryogenic freezing case internal and external pressure balance device, it is characterized in that: comprise housing, housing is provided with air admission hole and venthole, air admission hole is or/and venthole is sealed by spring sealed mechanism, and described venthole is communicated with household freezer by tracheae.
As preferred embodiment of the present utility model, described sealing mechanism comprises the sealing gasket that is sealed into pore, sealing gasket is connected with the compression spring by gripper shoe, on sealing gasket and gripper shoe is installed in versatilely with housing is fixedlyed connected the guide pin bushing, the other end of guide pin bushing is bolted with adjustment screw, the other end of adjustment screw is equipped with setting-up piece, and an end of described compression spring is pressed on the setting-up piece.
The beneficial effects of the utility model are: because the utility model can independently be installed in other place of strip of paper used for sealing casing in addition, therefore the sealing property of gasket can not have any impact; When the refrigeration system of cryogenic freezing case is worked, pressure in the household freezer will reduce with decrease of temperature, when atmosphere outside the case to the pressure of sealing device greater than spring and case in gas when acting on the pressure of sealing device, air admission hole is opened, the outer gas of case just enters in the household freezer by housing, thereby realizes the pressure balance compensation that household freezer is inside and outside.When atmosphere outside the case to the pressure of sealing device less than spring and case in gas when acting on the pressure of sealing device, air admission hole will sealed again device sealing, thus the outer gas of blocking-up case enters in the casing.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the utility model when being in closed condition;
Fig. 2 is the structural representation of the utility model when being in opening;
Fig. 3 is the A place enlarged drawing of Fig. 2;
Fig. 4 is a left view of the present utility model.
The specific embodiment
Referring to figs. 1 through Fig. 4, a kind of cryogenic freezing case internal and external pressure balance device comprises housing 1, and housing 1 is provided with air admission hole 2 and venthole 3, and air admission hole 2 is sealed by spring sealed mechanism, and described venthole 3 is communicated with household freezer by tracheae 4.Wherein, described sealing mechanism comprises the sealing gasket 5 that is sealed into pore 2, and sealing gasket 5 is connected with compression spring 7 by gripper shoe 6.When atmosphere outside the case to the pressure of sealing device greater than spring and case in gas when acting on the pressure of sealing device, air admission hole 2 is opened, the outer gas of case just enters in the household freezer by housing 1, thereby realizes the pressure balance compensation that household freezer is inside and outside.When atmosphere outside the case to the pressure of sealing device less than spring and case in gas when acting on the pressure of sealing device, air inlet 2 holes will sealed again device sealing, thus the outer gas of blocking-up case enters in the casing.
In addition, described sealing gasket 5 is installed on the guide pin bushing 8 of fixedlying connected with housing 1 versatilely with gripper shoe 6, thereby sealing gasket 5 and gripper shoe 6 are moved more neatly; Also have plenty of: the other end of guide pin bushing 8 is bolted with adjustment screw 9, and the other end of adjustment screw 9 is equipped with setting-up piece 10, and an end of described compression spring 7 is pressed on the setting-up piece 10, and the amount of force of compression spring 7 can be controlled by adjustment screw 9.Wherein, described guide pin bushing 8 is fixed on the housing 1 by screw 11.
Certainly; the utility model is not limited to above-mentioned embodiment; described spring sealed mechanism is installed on the venthole 3 or uses spring seal unit of the present utility model and is directly installed on the casing; in a word, be equal to the utility model or become bad technical scheme and also belong to protection domain of the present utility model.
Claims (3)
1, a kind of cryogenic freezing case internal and external pressure balance device, it is characterized in that: comprise housing (1), housing (1) is provided with air admission hole (2) and venthole (3), air admission hole (2) is or/and venthole (3) is sealed by spring sealed mechanism, and described venthole (3) is communicated with household freezer by tracheae (4).
2, a kind of cryogenic freezing case internal and external pressure balance device according to claim 1, it is characterized in that: described sealing mechanism comprises the sealing gasket (5) that is sealed into pore (2), sealing gasket (5) is connected with compression spring (7) by gripper shoe (6).
3, a kind of cryogenic freezing case internal and external pressure balance device according to claim 2, it is characterized in that: described sealing gasket (5) is installed on the guide pin bushing (8) of fixedlying connected with housing (1) versatilely with gripper shoe (6), the other end of guide pin bushing (8) is bolted with adjustment screw (9), the other end of adjustment screw (9) is equipped with setting-up piece (10), and an end of described compression spring (7) is pressed on the setting-up piece (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201193968U CN2881471Y (en) | 2005-12-01 | 2005-12-01 | Internal external pressure balancing device of low temperature freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201193968U CN2881471Y (en) | 2005-12-01 | 2005-12-01 | Internal external pressure balancing device of low temperature freezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881471Y true CN2881471Y (en) | 2007-03-21 |
Family
ID=37881312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201193968U Expired - Lifetime CN2881471Y (en) | 2005-12-01 | 2005-12-01 | Internal external pressure balancing device of low temperature freezer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881471Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645072A (en) * | 2012-05-16 | 2012-08-22 | 合肥美的荣事达电冰箱有限公司 | Air pressure balancing device and refrigeration equipment with same |
| CN103471327A (en) * | 2013-09-30 | 2013-12-25 | 合肥华凌股份有限公司 | Freezer |
| KR20140000929A (en) * | 2012-06-26 | 2014-01-06 | 엘지전자 주식회사 | A device protecting the over-degree of a vaccum for a vegetables container of a refrigerator and a vegetables container having it |
| CN102245984B (en) * | 2008-12-09 | 2014-01-29 | Bsh博世和西门子家用电器有限公司 | Refrigerating appliance, in particular domestic freezer |
| CN104729186A (en) * | 2015-04-07 | 2015-06-24 | 合肥华凌股份有限公司 | Refrigerator |
| CN106016934A (en) * | 2016-05-23 | 2016-10-12 | 青岛海尔股份有限公司 | Refrigerator and storage device thereof |
| CN108139135A (en) * | 2015-10-20 | 2018-06-08 | Bsh家用电器有限公司 | Domestic refrigerator with refrigerating space, reefer space and pressure-compensated valve |
| CN108444191A (en) * | 2018-05-11 | 2018-08-24 | 松下冷链（大连）有限公司 | Pressure equaliser for low-temp. refrigerator |
| CN110285623A (en) * | 2019-05-29 | 2019-09-27 | 青岛海尔电冰箱有限公司 | Refrigerator |
| CN110553458A (en) * | 2019-09-29 | 2019-12-10 | 海信容声(广东)冷柜有限公司 | Pressure balancing device for refrigerator |
| CN110806050A (en) * | 2019-11-07 | 2020-02-18 | 青岛海尔特种电冰柜有限公司 | Air pressure balancing device and refrigerating device using same |
| CN113803931A (en) * | 2021-10-14 | 2021-12-17 | 浙江星星冷链集成股份有限公司 | System and method for balancing internal and external air pressure of refrigerator |
-
2005
- 2005-12-01 CN CNU2005201193968U patent/CN2881471Y/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102245984B (en) * | 2008-12-09 | 2014-01-29 | Bsh博世和西门子家用电器有限公司 | Refrigerating appliance, in particular domestic freezer |
| CN102645072A (en) * | 2012-05-16 | 2012-08-22 | 合肥美的荣事达电冰箱有限公司 | Air pressure balancing device and refrigeration equipment with same |
| CN103512293B (en) * | 2012-06-26 | 2016-08-03 | Lg电子株式会社 | There is the refrigerator of barometric control unit for storing container |
| KR101923475B1 (en) | 2012-06-26 | 2019-02-22 | 엘지전자 주식회사 | A device protecting the over-degree of a vaccum for a vegetables container of a refrigerator and a vegetables container having it |
| KR20140000929A (en) * | 2012-06-26 | 2014-01-06 | 엘지전자 주식회사 | A device protecting the over-degree of a vaccum for a vegetables container of a refrigerator and a vegetables container having it |
| CN103512293A (en) * | 2012-06-26 | 2014-01-15 | Lg电子株式会社 | Refrigerator having air pressure adjusting apparatus for storage container |
| CN103471327B (en) * | 2013-09-30 | 2016-04-27 | 合肥华凌股份有限公司 | Refrigerator-freezer |
| CN103471327A (en) * | 2013-09-30 | 2013-12-25 | 合肥华凌股份有限公司 | Freezer |
| CN104729186A (en) * | 2015-04-07 | 2015-06-24 | 合肥华凌股份有限公司 | Refrigerator |
| CN104729186B (en) * | 2015-04-07 | 2018-11-13 | 合肥华凌股份有限公司 | Refrigerator |
| CN108139135B (en) * | 2015-10-20 | 2020-09-04 | Bsh家用电器有限公司 | Domestic refrigeration device with a refrigerating space, a freezer space and a pressure compensation valve |
| CN108139135A (en) * | 2015-10-20 | 2018-06-08 | Bsh家用电器有限公司 | Domestic refrigerator with refrigerating space, reefer space and pressure-compensated valve |
| CN106016934A (en) * | 2016-05-23 | 2016-10-12 | 青岛海尔股份有限公司 | Refrigerator and storage device thereof |
| CN106016934B (en) * | 2016-05-23 | 2019-05-31 | 青岛海尔股份有限公司 | Refrigerator and its article-storage device |
| CN108444191A (en) * | 2018-05-11 | 2018-08-24 | 松下冷链（大连）有限公司 | Pressure equaliser for low-temp. refrigerator |
| CN110285623A (en) * | 2019-05-29 | 2019-09-27 | 青岛海尔电冰箱有限公司 | Refrigerator |
| CN110285623B (en) * | 2019-05-29 | 2021-07-23 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN110553458A (en) * | 2019-09-29 | 2019-12-10 | 海信容声(广东)冷柜有限公司 | Pressure balancing device for refrigerator |
| CN110806050A (en) * | 2019-11-07 | 2020-02-18 | 青岛海尔特种电冰柜有限公司 | Air pressure balancing device and refrigerating device using same |
| CN110806050B (en) * | 2019-11-07 | 2022-12-30 | 青岛海尔特种电冰柜有限公司 | Air pressure balancing device and refrigerating device using same |
| CN113803931A (en) * | 2021-10-14 | 2021-12-17 | 浙江星星冷链集成股份有限公司 | System and method for balancing internal and external air pressure of refrigerator |
| CN113803931B (en) * | 2021-10-14 | 2022-05-20 | 浙江星星冷链集成股份有限公司 | System and method for balancing internal and external air pressure of refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG STAR REFRIGERATION EQUIPMENT CO., LTD. Free format text: FORMER OWNER: FUSHAN CITY STAR REFRIGERATION EQUIPMENT ENGINEERING CO., LTD. Effective date: 20090522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090522 Address after: South Industrial Development Zone, Leping Town, Sanshui District, Guangdong, Foshan, China: 528000 Patentee after: GUANGDONG XINGXING REFRIGERATION EQUIPMENT CO., LTD. Address before: Foshan Seven Star Road, Chancheng District, Guangdong, Foshan City Star Refrigeration Equipment Engineering Co., Ltd., postcode: 528000 Patentee before: Xingxing Refrigerating Equipment Engineering Co., Ltd., Foshan City |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070321 |
|
| EXPY | Termination of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Shulin Document name: Notification of Expiration of Patent Right Duration |