CN2253454Y - Pressure-balancing device for chilling chamber of refrigerator - Google Patents
Pressure-balancing device for chilling chamber of refrigerator Download PDFInfo
- Publication number
- CN2253454Y CN2253454Y CN 96208438 CN96208438U CN2253454Y CN 2253454 Y CN2253454 Y CN 2253454Y CN 96208438 CN96208438 CN 96208438 CN 96208438 U CN96208438 U CN 96208438U CN 2253454 Y CN2253454 Y CN 2253454Y
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- CN
- China
- Prior art keywords
- connecting rod
- refrigerator
- valve
- spring
- utility
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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 - Fee Related
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Abstract
The utility model discloses a pressure balancing device for a freezing chamber of a refrigerator. The utility model is composed of a casing 1, a spring 2, a connecting rod valve 3, and a valve rubber washer 10. The utility model is characterized in that the spring 2 is arranged between the valve rubber washer 10 of the connecting rod valve 3 and the outer wall 5 of the refrigerator, and an air inlet 4 can be elastically sealed by the valve rubber washer 10 of the connecting rod valve 3, the valve rubber washer 10 is fixed at the front end of a spring positioning groove 9 of the connecting rod valve 3 by adhesive. The utility model effectively solves the long standing negative pressure problem of the large freezing chamber of the refrigerator. The utility model has the advantages of simple structure, reliable performance, easy fabrication, low cost, etc.
Description
The utility model relates to a kind of air pressure balance valve of household electric refrigerator refrigerating chamber.
In recent years, big volume refrigerating chamber household electric refrigerator captures refrigerator market rapidly with its remarkable advantages, enters huge numbers of families.For big volume refrigerating chamber refrigerator, people find when using summer, get the thing pass behind the door when opening door of refrigerator, if when in a few minutes or tens minutes, needing to open door of refrigerator once more, just relatively more difficult, be not easy to draw back, if draw back door of refrigerator by force, will damage chamber door magnetic strip of paper used for sealing.Simultaneously, also find to open door of refrigerator and get thing and close behind the door, the refrigerator upper body is sent sound, and the casing upper case is known from experience and is bent when serious, even distortion and can't restoring, and has a strong impact on outward appearance.This is because when opening door of refrigerator and get thing, extraneous hot-air enters refrigerating chamber, and hot-air is met quenching and shunk rapidly, produces negative pressure in the big refrigerating chamber thereby make, and the refrigerating chamber casing is big more, and outside air temperature is high more, and negative pressure is just big more.Exactly because this negative pressure, externally under the atmospheric pressure effect, the freezer compartment of refrigerator outer casing sends sound, distortion, refrigerator door of refrigerator and phenomenon such as can not draw away and just taken place.
According to preliminary investigation, at present import yet there are no this device with homemade big refrigerating chamber refrigerator to market.
At present, prior art all is that the thickness that increases the refrigerator tank wall comes resistance to compression.Even so, also can't tackle the problem at its root, and the way that increases tank wall thickness both increases the weight of refrigerator, increased the cost of refrigerator again, very unfavorable.
The purpose of the present utility model, in order to solve the negative pressure problem that above-mentioned big refrigerating chamber refrigerator exists, the protection refrigerator is not damaged by negative pressure exactly, and make the refrigerating chamber chamber door can be at any time switch easily.
Design concept of the present utility model is: the hot-air that enters refrigerating chamber when opening door of refrigerator is met cold contraction suddenly, form negative pressure in the refrigerating chamber, connecting rod valve 3 pressures are during greater than the elastic force of spring 2, connecting rod valve 3 is opened, the case outer air enters in the refrigerating chamber by air admission hole 4,7, makes the refrigerating chamber inner and outer air pressure keep balance; When air enters, negative pressure reduces, and connecting rod valve 3 pressures are during less than the elastic force of spring 2, spring 2 returns, and connecting rod valve 3 cuts out, and seals air admission hole 4, cuts off outside air, thereby has solved the negative pressure problem of freezer compartment of refrigerator, has realized goal of the invention.
Fig. 1 is the assembling schematic diagram of freezer chamber of refrigerator air-pressure balancing device, also is Figure of abstract of the present utility model.
Fig. 2 is the housing schematic diagram of this device.
Fig. 3 is the connecting rod valve schematic diagram of this device.
The numbering of this device parts is among the figure: 1. housing, 2. spring, 3. connecting rod valve, 4. air admission hole, 5. refrigerator outer wall, 6. connecting rod valve locating slot, 7. heat insulation layer air admission hole, 8. casing heat insulation layer, 9. spring locating slot, 10. valve rubber cushion, 11. spring reference columns.
Below in conjunction with legend the utility model is described in further detail.
This air pressure balance is put by housing 1, spring 2, connecting rod valve 3, valve rubber cushion 10 and is formed.The heat insulation layer air admission hole 7 that is no less than one is arranged on the housing 1, and it and freezer compartment of refrigerator communicate.One end of spring 2 is enclosed within on the spring locating slot 9 of connecting rod valve 3, and the other end of spring 2 is enclosed within on the connecting rod valve reference column 11 of housing 1, and the end of connecting rod valve 3 puts in connecting rod valve locating slot 6 the insides, makes it to constitute to flexibly connect.Spring 2 can be made of the stainless steel elastomeric material.When negative pressure forms, be enough to compress spring 2 during connecting rod valve 3 pressurizeds.Valve rubber cushion 10 adopts the elastomeric material of good airproof performance, enables to seal up the air admission hole 4 on the refrigerator outer wall 5.The size of housing 1, installation position can design according to the size and the requirement of electric refrigerator housing body.Whole device is positioned with bonding agent also can utilize casing heat insulation layer 8 to locate on the air admission hole 4 of refrigerator outer wall 5.The housing 1 and the connecting rod valve 3 of this device all adopt plastic production, compression molding, and valve rubber cushion 10 can be used spring locating slot 9 front ends of adhesive securement at connecting rod valve 3.
The design of the present utility model design obviously can also adopt the design of spring leaf to realize that this different embodiments that belongs to same inventive concept is that the common skill person of asking for help of this technical field can be realized significantly.Therefore, any embodiment that adopts spring leaf to replace the spring 2 in the utility model must belong within the protection domain of the present utility model.
The utility model is to conceive dexterously the negative pressure that has effectively solved freezer chamber of refrigerator Problem, have simple in structure, dependable performance, easily manufactured, the advantage such as cheap.
Claims (3)
1. a freezer chamber of refrigerator air-pressure balancing device is made up of housing 1, spring 2, connecting rod valve 3 and valve rubber cushion 10, it is characterized in that on the connecting rod valve 3 valve rubber cushion 10, and refrigerator outer wall 5 between flexibly seal up air admission hole 4 by spring 2.
2. freezer compartment of refrigerator air-pressure balancing device according to claim 1, an end that it is characterized in that spring 2 is enclosed within on the spring locating slot 9 of connecting rod valve 3, the other end of spring 2 is enclosed within on the connecting rod reference column 11 of housing 1, the rod end of connecting rod valve 3 puts in connecting rod locating glooves 6 the insides, make it to constitute flexible connection, valve rubber cushion 10 adopts spring locating slot 9 front ends of adhesive securement at connecting rod valve 3.
3. freezer compartment of refrigerator air-pressure balancing device according to claim 1 is characterized in that housing 1 and connecting rod valve 3 all adopt plastic production, compression molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96208438 CN2253454Y (en) | 1996-04-08 | 1996-04-08 | Pressure-balancing device for chilling chamber of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96208438 CN2253454Y (en) | 1996-04-08 | 1996-04-08 | Pressure-balancing device for chilling chamber of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2253454Y true CN2253454Y (en) | 1997-04-30 |
Family
ID=33892439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96208438 Expired - Fee Related CN2253454Y (en) | 1996-04-08 | 1996-04-08 | Pressure-balancing device for chilling chamber of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2253454Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017455A (en) * | 2012-12-26 | 2013-04-03 | 合肥华凌股份有限公司 | Refrigerating equipment |
| CN103411376A (en) * | 2013-08-29 | 2013-11-27 | 合肥华凌股份有限公司 | Refrigeration equipment |
| CN105889582A (en) * | 2016-04-18 | 2016-08-24 | 吴楠 | Automatic air pressure balancing valve core and balancing valve |
| CN109028743A (en) * | 2018-05-25 | 2018-12-18 | 青岛海尔股份有限公司 | The control method of refrigerator and the refrigerator |
| CN109827373A (en) * | 2019-03-20 | 2019-05-31 | 冰山松洋生物科技(大连)有限公司 | Electromagnetic type pressure balancing structure for deepfreeze case shutter door |
-
1996
- 1996-04-08 CN CN 96208438 patent/CN2253454Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017455A (en) * | 2012-12-26 | 2013-04-03 | 合肥华凌股份有限公司 | Refrigerating equipment |
| CN103411376A (en) * | 2013-08-29 | 2013-11-27 | 合肥华凌股份有限公司 | Refrigeration equipment |
| CN105889582A (en) * | 2016-04-18 | 2016-08-24 | 吴楠 | Automatic air pressure balancing valve core and balancing valve |
| CN109028743A (en) * | 2018-05-25 | 2018-12-18 | 青岛海尔股份有限公司 | The control method of refrigerator and the refrigerator |
| CN109827373A (en) * | 2019-03-20 | 2019-05-31 | 冰山松洋生物科技(大连)有限公司 | Electromagnetic type pressure balancing structure for deepfreeze case shutter door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |