CN208507742U - A kind of battery cover board and the battery using the battery cover board - Google Patents
A kind of battery cover board and the battery using the battery cover board Download PDFInfo
- Publication number
- CN208507742U CN208507742U CN201820832724.6U CN201820832724U CN208507742U CN 208507742 U CN208507742 U CN 208507742U CN 201820832724 U CN201820832724 U CN 201820832724U CN 208507742 U CN208507742 U CN 208507742U
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- CN
- China
- Prior art keywords
- battery
- cover board
- relief valve
- injection hole
- liquid injection
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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.)
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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 provides a kind of battery cover board and the battery using the battery cover board.The cover board that the power battery of the utility model includes shell, is mounted on the intracorporal battery core of shell and is mounted at shell nozzle, the cover board is equipped with liquid injection hole, relief valve is installed, which further includes the entrance that relief valve is arranged in, only filtrate piece for gas to pass through and liquid barrier in liquid injection hole.Filtrate piece is set by the entrance location in relief valve, electrolyte can be obstructed and only passed the gas through, not only act as the effect of pressure release in this way, also avoids electrolyte leakage, ensure that the performance of battery.
Description
Technical field
The utility model relates to power battery field more particularly to a kind of battery cover board and use the electricity of the battery cover board
Pond.
Background technique
Pure electric vehicle technology is ripe day by day, and Development of HEV Technology is gradually perfect, and power battery is various electric vehicles
Main energetic carrier and power resources and electric vehicle vehicle important component.It is a large amount of with power battery
Use, battery security problem is more prominent, and battery can generate gas in use, if inside battery air accumulation without
Method discharge will lead to cell expansion explosion when internal gas pressure is higher, extremely dangerous.
Also there is the safety measure of many release inside battery gases in the prior art, such as Authorization Notice No. is
The Chinese utility model patent and Authorization Notice No. of CN202454632U is the Chinese utility model patent of CN205004397U
Two kinds of batteries are individually disclosed, the cover board of battery generates gas in inside battery to realize by installing relief valve in liquid injection hole
Body and when gas reaches certain pressure, realizes the pressure release of inside battery, by relief valve to protect to battery.But this
A little pressure release modes will cause inside battery solution sometimes and leak out with gas, not only pollute when inside battery air pressure is larger,
And battery is caused to be unable to normal use because lacking liquid.
Utility model content
The purpose of this utility model is to provide a kind of power battery, it is easy to cause in a manner of existing battery pressure release by solving
The problem of internal solution leaks out and leads to pollution and battery failure；Meanwhile the utility model additionally provides the electricity of the power battery
Pond cover board.
The power battery of the utility model includes shell, is mounted on the intracorporal battery core of shell and is mounted at shell nozzle
Cover board, the cover board are equipped with liquid injection hole, are equipped with relief valve in liquid injection hole, which further includes the import that relief valve is arranged in
Place, only filtrate piece for gas to pass through and liquid barrier.Filtrate piece is set by the entrance location in relief valve, electricity can be obstructed
It solves liquid and only passes the gas through, not only act as the effect of pressure release in this way, also avoid electrolyte leakage, ensure that the property of battery
Energy.
Further, filtrate piece is fixed on relief valve, it is simple and convenient, and using the filtrate piece compared with small area
The effect of barrier electrolyte can be realized.Preferably, filtrate piece is sunk in the liquid injection hole on plate body, does not interfere the intracorporal battery core of shell
Arrangement；Filtrate piece is preferably PP or PE filter disc.
Certainly, according to the needs of use, relief valve is preferably normally closed type spring valve.
For the ease of the installation of valve, the inner wall of liquid injection hole is equipped with limited step outwardly, and the valve seat of relief valve is limited
Step institute's block positioning, and due to by filtrate piece obstruct electrolyte leak out, battery be not necessarily in use supplement and more
Electrolyte is changed, relief valve being welded at liquid injection hole can guarantee that relief valve is reliably connected with battery cover board in this way.
According to actual needs, the air leakage amount of relief valve is selected as 1ml/min-1000ml/min.
In addition, being additionally provided with and passing through at close battery cathode position on plate body in order to further ensure the safety of battery
Self-deformation and the air pressure responsive type contact device for discharging certain pressure, duplicate protection is relatively reliable.
The battery cover board of the utility model, including bar shaped plate body, plate body are equipped with liquid injection hole, are equipped with pressure release in liquid injection hole
Valve, the cover board further include the entrance that relief valve is arranged in, only filtrate piece for gas to pass through and liquid barrier.By in pressure release
Filtrate piece is arranged in the entrance location of valve, can obstruct electrolyte and only pass the gas through, not only act as the effect of pressure release in this way,
Electrolyte leakage is avoided, ensure that the performance of battery.
Further, filtrate piece is fixed on relief valve, it is simple and convenient, and using the filtrate piece compared with small area
The effect of barrier electrolyte can be realized.Preferably, filtrate piece is sunk in the liquid injection hole on plate body, does not interfere the intracorporal battery core of shell
Arrangement；Filtrate piece is preferably PP or PE filter disc.
Certainly, according to the needs of use, relief valve is preferably normally closed type spring valve.
For the ease of the installation of valve, the inner wall of liquid injection hole is equipped with limited step outwardly, and the valve seat of relief valve is limited
Step institute's block positioning, and due to by filtrate piece obstruct electrolyte leak out, battery be not necessarily in use supplement and more
Electrolyte is changed, relief valve being welded at liquid injection hole can guarantee that relief valve is reliably connected with battery cover board in this way.
According to actual needs, the air leakage amount of relief valve is selected as 1ml/min-1000ml/min.
In addition, being additionally provided with and passing through at close battery cathode position on plate body in order to further ensure the safety of battery
Self-deformation and the air pressure responsive type contact device for discharging certain pressure, duplicate protection is relatively reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the battery cover board of the utility model；
Fig. 2 is the schematic enlarged-scale view of relief valve and cover board plate body link position in Fig. 1.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment of the power battery of the utility model, including shell, it is mounted on the intracorporal battery core of shell and installation
Cover board at shell nozzle.The structure of cover board is as shown in Figure 1 and 2, including plate body 1, and plate body 1 is equipped with liquid injection hole 3, liquid injection hole 3
Relief valve 2 is inside installed.Relief valve 2 includes the valve seat 23 being fixedly installed with plate body 1, spool 25, the pressure being sleeved on outside spool 25
It contracting spring 22 and is connected with valve seat 23 and spool 25 is pressed on to the valve deck 21 in the valve opening of valve seat 23 by compressed spring 22.
In addition, battery is also equipped with only filtrate piece 24 for gas to pass through and liquid barrier in the entrance of relief valve 2.In this way, in battery
When the air pressure of inside aggregation gas reaches the cracking pressure of relief valve 2,25 compressed spring 22 of gas push spool simultaneously acts upwards,
Conducting relief valve 2 discharges the gas of inside battery, and filtrate piece 24 is arranged by the entrance location in relief valve 2, can release
Electrolyte is obstructed while putting gas pressure, electrolyte is avoided to leak outside, ensure that the performance of battery.
For the ease of installing valve seat, the inner wall of liquid injection hole 3 is equipped with limited step 11 outwardly, is mounted in liquid injection hole in valve seat
When middle, step 11 can be limited and keep off and position, be connected convenient for the welding between valve seat and plate body.Filtrate piece 24 and valve seat connect
It connects and sinks in liquid injection hole 3 without exposing from 1 downside of plate body.
Filtrate piece is manufactured using special substance (PP or PE).Since relief valve herein is often in close state, it can
To select normally closed type spring valve.Its major parameter can are as follows: cracking pressure can be 0.01MPa-1Mpa, and clossing pressure can be
0.01MPa-1Mpa, certainly, in other embodiments, the type and structure of relief valve, which can according to need, to be selected.By
It is leaked out in obstructing electrolyte by filtrate piece 24, battery is not necessarily to supplement in use and replaces electrolyte, in this way by pressure release
The valve seat 21 of valve is welded at liquid injection hole 3, guarantees that relief valve is reliably connected with battery cover board in use.
Needs are used according to actual, the air leakage amount of relief valve is selected as 1ml/min-1000ml/min.Certainly, exist
In other embodiments, air leakage amount is also possible to other numberical ranges.
In addition, being additionally provided with the air pressure for discharging certain pressure by self-deformation at battery cathode position on plate body
Responsive type contact device 4, when cell internal pressure reaches setting value, air pressure responsive type contact device 4 occur flexible deformation and
It digs upwards, to discharge certain pressure.
In above-described embodiment, filtrate piece is fixedly mounted at the entrance location of relief valve, in other embodiments, filtrate
Piece is also mountable on the plate body of cover board, need to only separate the import in the intracorporal space of shell and relief valve；In other implementations
In mode, relief valve can also be with releasable connection on the plate body of cover board.
The utility model additionally provides a kind of battery cover board, wherein the implementation of the structure of battery cover board and above-mentioned power battery
Battery cover plate structure in example is identical, and details are not described herein again.
Claims (18)
1. a kind of battery cover board, including bar shaped plate body, plate body is equipped with liquid injection hole, is equipped with relief valve, feature in liquid injection hole
It is that the cover board further includes the entrance that relief valve is arranged in, only filtrate piece for gas to pass through and liquid barrier.
2. battery cover board according to claim 1, characterized in that the filtrate piece is fixed on relief valve.
3. battery cover board according to claim 1 or 2, characterized in that the filtrate piece is sunk in the liquid injection hole on plate body.
4. battery cover board according to claim 1 or 2, characterized in that filtrate piece is PP or PE filter disc.
5. battery cover board according to claim 1 or 2, characterized in that the relief valve is normally closed type spring valve.
6. battery cover board according to claim 1 or 2, characterized in that the inner wall of liquid injection hole is equipped with limiting stand outwardly
Rank, the valve seat of relief valve are limited the positioning of step institute's block.
7. battery cover board according to claim 6, characterized in that the relief valve is welded at liquid injection hole.
8. battery cover board according to claim 1 or 2, characterized in that the air leakage amount of relief valve is 1ml/min-1000ml/
min。
9. battery cover board according to claim 1 or 2, characterized in that also set on plate body at battery cathode position
There is the air pressure responsive type for discharging certain pressure by self-deformation to contact device.
10. a kind of power battery, including shell, the cover board for being mounted on the intracorporal battery core of shell and being mounted at shell nozzle, institute
Cover board is stated equipped with liquid injection hole, relief valve is installed in liquid injection hole, characterized in that the battery further include be arranged in relief valve into
At mouthful, only filtrate piece for gas to pass through and liquid barrier.
11. power battery according to claim 10, characterized in that the filtrate piece is fixed on relief valve.
12. power battery described in 0 or 11 according to claim 1, characterized in that the filtrate piece sinks to the liquid injection hole on plate body
It is interior.
13. power battery described in 0 or 11 according to claim 1, characterized in that filtrate piece is PP or PE filter disc.
14. power battery described in 0 or 11 according to claim 1, characterized in that the relief valve is normally closed type spring valve.
15. power battery described in 0 or 11 according to claim 1, characterized in that the inner wall of liquid injection hole is equipped with limit outwardly
Step, the valve seat of relief valve are limited the positioning of step institute's block.
16. power battery according to claim 15, characterized in that the relief valve is welded at liquid injection hole.
17. power battery described in 0 or 11 according to claim 1, characterized in that the air leakage amount of relief valve is 1ml/min-
1000ml/min。
18. power battery described in 0 or 11 according to claim 1, characterized in that on plate body at close battery cathode position also
Device is contacted equipped with the air pressure responsive type for discharging certain pressure by self-deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832724.6U CN208507742U (en) | 2018-05-31 | 2018-05-31 | A kind of battery cover board and the battery using the battery cover board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832724.6U CN208507742U (en) | 2018-05-31 | 2018-05-31 | A kind of battery cover board and the battery using the battery cover board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507742U true CN208507742U (en) | 2019-02-15 |
Family
ID=65287226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820832724.6U Active CN208507742U (en) | 2018-05-31 | 2018-05-31 | A kind of battery cover board and the battery using the battery cover board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507742U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051103A (en) * | 2022-05-27 | 2022-09-13 | 上海交通大学 | Battery cell active safety valve based on shape memory alloy thermal shrinkage elastic sheet and lithium battery |
| CN115133217A (en) * | 2022-05-27 | 2022-09-30 | 上海交通大学 | Automobile battery active safety valve based on shape memory alloy circular ring and lithium battery |
-
2018
- 2018-05-31 CN CN201820832724.6U patent/CN208507742U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051103A (en) * | 2022-05-27 | 2022-09-13 | 上海交通大学 | Battery cell active safety valve based on shape memory alloy thermal shrinkage elastic sheet and lithium battery |
| CN115133217A (en) * | 2022-05-27 | 2022-09-30 | 上海交通大学 | Automobile battery active safety valve based on shape memory alloy circular ring and lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: Kaibo Energy Technology Co.,Ltd. Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: Kaibo Energy Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220112 Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. |
|
| TR01 | Transfer of patent right |