CN206349430U - A kind of electric automobile power battery relief valve device - Google Patents
A kind of electric automobile power battery relief valve device Download PDFInfo
- Publication number
- CN206349430U CN206349430U CN201621182939.5U CN201621182939U CN206349430U CN 206349430 U CN206349430 U CN 206349430U CN 201621182939 U CN201621182939 U CN 201621182939U CN 206349430 U CN206349430 U CN 206349430U
- Authority
- CN
- China
- Prior art keywords
- valve body
- electric automobile
- power battery
- automobile power
- relief valve
- Prior art date
- 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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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a kind of electric automobile power battery relief valve device, including valve buckle (1), valve body (2), waterproof ventilated membrane (3), O-ring seal (4), stainless steel panel (5), test interface (6), valve buckle (1) is welded to connect with valve body (2), waterproof ventilated membrane (3) is soldered on the ventilation via boss of valve body (2), waterproof ventilated membrane (3) covers valve body (2) passage, stainless steel panel (5) is soldered to the tie point of valve body (2), in O-ring seal (4) press-in valve body (2) sealing ring mounting groove；By the way that relief valve device is arranged on battery case body, to realize the waterproof and breathable inside and outside battery pack, pressure is balanced；When battery pack inside and outside differential pressure is excessive, by valve body explosion pressure release, reduce the destruction that subsequent explosion is produced.
Description
Technical field
The utility model belongs to electric automobile power battery parts technical field, and in particular to the safety of electrokinetic cell
Valve gear.
Background technology
The direction developed with the fast development of new-energy automobile, electric automobile into future automobile.Current is pure electronic
Vehicle uses lithium ion battery, and in order to meet the degree of protection that lithium battery is increasingly improved, power battery pack need to be complete
Run in the state of closing.Battery pack can produce heat because of electric discharge during operation, in addition surrounding working environment temperature
Change, the pressure difference inside and outside battery bag can be continually changing, and pressure difference can directly affect the service life of battery pack beyond certain limit
And security.If in the case that internal battery pack monomer or module thermal runaway are even exploded, the pressure difference increased rapidly can be straight
Connecing causes battery pack to be exploded, it is therefore desirable to which electric automobile power battery solves this problem with relief valve device.
Utility model content
The purpose of this utility model is to solve the change due to electric automobile power battery bag inside and outside differential pressure or battery
The security risks such as module burning bulging, the blast that may bring and the design carried out.
The technical solution of the utility model is as follows：
Electric automobile power battery relief valve device, described device includes valve buckle 1, and valve body 2, waterproof ventilated membrane 3 is close
Sealing rubber ring 4, stainless steel panel 5, test interface 6.
Valve buckle 1 is welded to connect with valve body 2, and valve buckle 1 is combined closely with valve body 2 by welding, and weld seam is fully sealed.
Waterproof ventilated membrane 3 is soldered on the ventilation via boss of valve body 2, the covering passage of valve body 2 of waterproof ventilated membrane 3, is prevented
Water ventilated membrane 3 with waterproof and can allow the flowing of air.
Stainless steel panel 5 is soldered in the tie point of valve body 2, the press-in sealing ring mounting groove of valve body 2 of O-ring seal 4；It is described
The nested stainless steel panel 5 of parcel of O-ring seal 4, the overall nesting of O-ring seal 4 is attached in the sealing ring mounting groove of valve body 2；It is logical
Overheat fusion welds make O-ring seal 4, stainless steel panel 5 and valve body 2 combine closely.
It is preferred that technical scheme, the edge of O-ring seal 4 has pre compressed magnitude；Set on the mounting surface of the O-ring seal 4
There is multi-level meander, sealing ring is designed using multi-level meander, and in rubber seal ring recess corner prearrangement of deformation amount space, is greatly carried
Rise product installation sealing efficiency.
The side of valve body 2 has symmetrical air inlet, exhaust outlet；External pressure in the casing produced in battery pack course of normal operation
Difference, air-flow carries out breathing convection current, balance pressure by the waterproof and breathable diaphragm 3 on valve body 2 by the air grille of the side of valve body 2
Power.
After product installation, air tightness test is carried out.Using the special fixture with seal rubber plug 9, the air-out of valve body 2 is clamped
Mouthful, the bottom of valve body 2 is provided with pre-buried test interface 6, connects the connecting test interface 6 of air supply pipe 10, to battery pack inflating pressure, carries out
Pressurize is tested, and verifies battery pack air-tightness.
As fruit product is paddled in running, leave after ponding, the test interface 6 on valve body has drainage simultaneously.
On battery safety valve, integrated installation to power battery pack wall box, installation nut 8 is embedded with inside valve body 2, is led to
Cross and the realization of nut 8 and the flange face close installation of electrokinetic cell are installed.Fastened by embedded nut 8, compress rubber seal 4,
So as to ensure that Battery case all keeps airtight good with watertightness inside and outside installation site.
The beneficial effect of technical solutions of the utility model
Using safety valve for battery device, battery pack is in downthrust, thermal runaway, interior when the extreme situation such as blast occurs
Portion's pressure can rapidly increase, if no pressure relief opening will explode.After product installation, the pressure increased rapidly can be by valve body
2 structure destruction, connects battery case interior or exterior space, makes its quick pressure releasing immediately.
Product thermal runaway state such as fruit product high-temperature flue gas, can burn and melt waterproof and breathable diaphragm, connect battery case interior or exterior space,
Pressure release is discharged fume.
By the way that relief valve device is arranged on battery case body, to realize the waterproof and breathable inside and outside battery pack, balance pressure
Power；When battery pack inside and outside differential pressure is excessive, by valve body explosion pressure release, reduce the destruction that subsequent explosion is produced.
Brief description of the drawings
Fig. 1 is the structure chart of electric automobile power battery relief valve device of the present utility model.
Fig. 2 is many meander rubber seal loop graphs of electric automobile power battery relief valve device of the present utility model.
Fig. 3 is the product installation schematic diagram of electric automobile power battery relief valve device of the present utility model.
Fig. 4 is the products air tightness test schematic diagram of electric automobile power battery relief valve device of the present utility model.
Embodiment
The technical solution of the utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, electric automobile power battery with relief valve device include valve buckle 1, valve body 2, waterproof ventilated membrane 3,
O-ring seal 4, stainless steel panel 5, test interface 6.
Buckle 1 is welded to connect with valve body 2, and valve buckle 1 is combined closely with valve body 2 by welding, and weld seam is fully sealed.
Waterproof ventilated membrane 3 is soldered on the ventilation via boss of valve body 2, the covering passage of valve body 2 of waterproof ventilated membrane 3, is prevented
Water ventilated membrane 3 with waterproof and can allow the flowing of air.
Stainless steel panel 5 is soldered in the tie point of valve body 2, the press-in sealing ring mounting groove of valve body 2 of O-ring seal 4；It is described
The nested stainless steel panel 5 of parcel of O-ring seal 4, the overall nesting of O-ring seal 4 is attached in the sealing ring mounting groove of valve body 2；It is logical
Overheat fusion welds make O-ring seal 4, stainless steel panel 5 and valve body 2 combine closely.
As shown in Fig. 2 the edge of O-ring seal 4 has pre compressed magnitude；The mounting surface of the O-ring seal 4 is provided with multilayer
Secondary meander, sealing ring is designed using multi-level meander, and in rubber seal ring recess corner prearrangement of deformation amount space, significant increase product
Installation sealing efficiency.
As shown in figure 3, on battery safety valve, integrated installation to power battery pack wall box, peace is embedded with inside valve body 2
Loading nut 8, by installing the realization of nut 8 and the flange face close installation of electrokinetic cell.
As shown in figure 4, after product installation, carrying out air tightness test.Using the special fixture with seal rubber plug 9, pinched valve
The air outlet of body 2, the bottom of valve body 2 is provided with pre-buried test interface 6, connects the connecting test interface 6 of air supply pipe 10, and battery pack is inflated
Pressurization, carries out pressurize test, verifies battery pack air-tightness.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also
Including being combined constituted technical scheme by above technical characteristic.
Claims (9)
1. a kind of electric automobile power battery relief valve device, described device includes valve buckle (1), valve body (2), waterproof and breathable
Film (3), O-ring seal (4), stainless steel panel (5), test interface (6)；It is characterized in that：Valve buckle (1) is welded with valve body (2)
Connection, waterproof ventilated membrane (3) is soldered on the ventilation via boss of valve body (2), waterproof ventilated membrane (3) covering valve body (2) ventilation
Hole, stainless steel panel (5) is soldered in the tie point of valve body (2), O-ring seal (4) press-in valve body (2) sealing ring mounting groove.
2. a kind of electric automobile power battery relief valve device according to claim 1, it is characterised in that：Valve buckle
(1) combined closely with valve body (2) by welding, weld seam is fully sealed.
3. a kind of electric automobile power battery relief valve device according to claim 1, it is characterised in that：The sealing
The stainless steel panel (5) of cushion rubber (4) nesting parcel, O-ring seal (4) entirety nesting is attached to the sealing ring mounting groove of valve body (2)
It is interior；O-ring seal (4), stainless steel panel (5) and valve body (2) is set to combine closely by thermofussion welding welding.
4. a kind of electric automobile power battery relief valve device according to claim 3, it is characterised in that：The sealing
The edge of cushion rubber (4) has pre compressed magnitude.
5. a kind of electric automobile power battery relief valve device according to claim 3, it is characterised in that：The sealing
The mounting surface of cushion rubber (4) is provided with multi-level meander.
6. a kind of electric automobile power battery relief valve device according to claim 1, it is characterised in that：Valve body (2)
Side has symmetrical air inlet, exhaust outlet.
7. a kind of electric automobile power battery relief valve device according to claim 1, it is characterised in that：Valve body (2)
Bottom is provided with pre-buried test interface (6), the tracheae connecting test interface (6) during product installation test, and battery pack is entered
Air tightness test is implemented in row inflation, pressurize.
8. a kind of electric automobile power battery relief valve device according to claim 1, it is characterised in that：The test
Interface (6) also has drainage.
9. a kind of electric automobile power battery relief valve device according to claim 1, it is characterised in that：Valve body (2)
Inside is embedded with installation nut (8), by installing nut (8) realization and the flange face close installation of electrokinetic cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621182939.5U CN206349430U (en) | 2016-11-03 | 2016-11-03 | A kind of electric automobile power battery relief valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621182939.5U CN206349430U (en) | 2016-11-03 | 2016-11-03 | A kind of electric automobile power battery relief valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206349430U true CN206349430U (en) | 2017-07-21 |
Family
ID=59321020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621182939.5U Expired - Fee Related CN206349430U (en) | 2016-11-03 | 2016-11-03 | A kind of electric automobile power battery relief valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206349430U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711601A (en) * | 2018-06-12 | 2018-10-26 | 南京骏睿新能源汽车科技有限公司 | A kind of explosion-proof grease proofing power battery safety valve |
| CN108758031A (en) * | 2018-07-12 | 2018-11-06 | 东莞蒲微防水透气膜材料有限公司 | A kind of novel waterproof air previous explosion-proof valve |
| CN108807785A (en) * | 2018-06-29 | 2018-11-13 | 北京新能源汽车股份有限公司 | Power battery explosion-proof device, power battery and electric automobile |
| CN109163129A (en) * | 2018-09-21 | 2019-01-08 | 奇瑞汽车股份有限公司 | Cover plate structure of shell |
| CN111771292A (en) * | 2018-02-26 | 2020-10-13 | 三洋电机株式会社 | Battery pack |
| CN113228394A (en) * | 2019-01-04 | 2021-08-06 | 曼·胡默尔有限公司 | Exhaust unit and electronic device housing, in particular battery housing |
| WO2023022487A1 (en) * | 2021-08-17 | 2023-02-23 | 주식회사 엘지에너지솔루션 | Battery pack and device including same |
-
2016
- 2016-11-03 CN CN201621182939.5U patent/CN206349430U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111771292A (en) * | 2018-02-26 | 2020-10-13 | 三洋电机株式会社 | Battery pack |
| CN111771292B (en) * | 2018-02-26 | 2023-05-05 | 三洋电机株式会社 | Battery pack |
| CN108711601A (en) * | 2018-06-12 | 2018-10-26 | 南京骏睿新能源汽车科技有限公司 | A kind of explosion-proof grease proofing power battery safety valve |
| CN108711601B (en) * | 2018-06-12 | 2024-05-10 | 惠州市龙源科技有限公司 | Explosion-proof grease proofing power battery relief valve |
| CN108807785A (en) * | 2018-06-29 | 2018-11-13 | 北京新能源汽车股份有限公司 | Power battery explosion-proof device, power battery and electric automobile |
| CN108807785B (en) * | 2018-06-29 | 2021-08-03 | 北京新能源汽车股份有限公司 | Power battery explosion-proof device, power battery and electric automobile |
| CN108758031A (en) * | 2018-07-12 | 2018-11-06 | 东莞蒲微防水透气膜材料有限公司 | A kind of novel waterproof air previous explosion-proof valve |
| CN109163129A (en) * | 2018-09-21 | 2019-01-08 | 奇瑞汽车股份有限公司 | Cover plate structure of shell |
| CN113228394A (en) * | 2019-01-04 | 2021-08-06 | 曼·胡默尔有限公司 | Exhaust unit and electronic device housing, in particular battery housing |
| US11804633B2 (en) | 2019-01-04 | 2023-10-31 | Mann+Hummel Gmbh | Degassing unit and electronics housing, in particular battery housing |
| WO2023022487A1 (en) * | 2021-08-17 | 2023-02-23 | 주식회사 엘지에너지솔루션 | Battery pack and device including same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20211103 |