CN203103365U - Multi-layer-structure explosion-proof device for power battery cover plate - Google Patents
Multi-layer-structure explosion-proof device for power battery cover plate Download PDFInfo
- Publication number
- CN203103365U CN203103365U CN2013200499345U CN201320049934U CN203103365U CN 203103365 U CN203103365 U CN 203103365U CN 2013200499345 U CN2013200499345 U CN 2013200499345U CN 201320049934 U CN201320049934 U CN 201320049934U CN 203103365 U CN203103365 U CN 203103365U
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- China
- Prior art keywords
- explosion
- pressure disc
- rupture pressure
- proof
- cover plate
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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
Abstract
The utility model discloses a multi-layer-structure explosion-proof device for a power battery cover plate. The explosion-proof device comprises an explosion-proof hole formed in the battery cover plate and an explosion-proof component passing through the explosion-proof hole, wherein the explosion-proof component comprises an explosion-proof valve body and an explosion-proof membrane structure arranged inside the explosion-proof valve body, and the explosion-proof membrane structure at least comprises a first explosion-proof membrane component and a second explosion-proof membrane component, which are orderly arranged from bottom to top. The explosion-proof device disclosed by the utility model is stable in blasting value, capable of effectively protecting the safety of the power battery, is not influenced by a battery processing process, and capable of preventing the problems of explosion-proof membrane leakage and the like.
Description
Technical field
The utility model relates to the power battery explosion protection technology, relates in particular to a kind of electrokinetic cell cover plate explosion-protection equipment of sandwich construction.
Background technology
Electrokinetic cell is the important component part of new-energy automobile, be the key project of new-energy automobile development, thereby it is particularly important with performance safely.And be located at explosion-protection equipment wherein emphasis just on the electrokinetic cell cover plate.
Electrokinetic cell cover plate explosion-protection equipment mainly is made of the rupture pressure disc of being located at the explosionproof hole on the battery cover board and be located in this explosionproof hole.Rupture pressure disc adopts the aluminium flake material, behind the groove of punching press different depth on the aluminium flake, through the laser welding moulding.After the electrokinetic cell internal pressure reached certain value, its groove part was at first broken, and discharges cell internal pressure, thereby reaches explosion-proof effect.There is following defective in this structure:
1, the groove on the aluminium flake is difficult to precisely, thereby causes explosion value instability.
2, laser welding exerts an influence to rupture pressure disc, easily leakage and make the burst pressure reduction.
3, the battery liquid-filling operation can be damaged the groove on the rupture pressure disc, thereby causes leakage and burst pressure to reduce.
4, aluminium matter rupture pressure disc can play corrosiveness to electrolyte, thereby jeopardizes battery safety.
The utility model content
Technical problem to be solved in the utility model is: the electrokinetic cell cover plate explosion-protection equipment that a kind of sandwich construction is provided; this device explosion value stabilization; can effectively protect the electrokinetic cell fail safe, and can avoid cell processing course influence, prevent problems such as safety diaphragm leakage.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of electrokinetic cell cover plate explosion-protection equipment of sandwich construction, comprise the explosionproof hole of being located on the battery cover board, the explosion-proof assembly that passes this explosionproof hole, described explosion-proof assembly comprises explosion-proof valve body and is located at the interior rupture pressure disc structure of this explosion-proof valve body that described rupture pressure disc structure includes the first rupture pressure disc assembly and the second rupture pressure disc assembly that sets gradually from top to bottom at least.
Preferably, the described first rupture pressure disc assembly comprises first rupture pressure disc of promising macromolecule material, and the described second rupture pressure disc assembly comprises second rupture pressure disc of promising aluminium foil matter.
Preferably, the described first rupture pressure disc assembly also includes first pressure ring and the first insulation gasket ring of being located at the described first rupture pressure disc above and below respectively.
Preferably, the described second rupture pressure disc assembly also includes second pressure ring and the O-ring seal of being located at the described second rupture pressure disc above and below respectively.
Preferably, on the described second rupture pressure disc assembly, also be provided with the 3rd rupture pressure disc assembly.
Preferably, described the 3rd rupture pressure disc assembly comprises the 3rd rupture pressure disc of promising macromolecule material.
Preferably, described the 3rd rupture pressure disc assembly also includes the 3rd pressure ring and the 3rd insulation gasket ring of being located at described the 3rd rupture pressure disc above and below respectively.
Preferably, the described explosion-proof valve body and the first rupture pressure disc assembly, the second rupture pressure disc assembly, and the 3rd rupture pressure disc assembly staking moulding.
The beneficial effects of the utility model are:
Embodiment of the present utility model is by being provided with multilayer rupture pressure disc structure, thereby reached the explosion value stabilization, can effectively protect the electrokinetic cell fail safe, and can avoid cell processing course influence, prevent the technique effect of problems such as rupture pressure disc leakage.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of an embodiment of electrokinetic cell cover plate explosion-protection equipment of sandwich construction of the present utility model.
Fig. 2 is the decomposing schematic representation of explosion-proof valve body among embodiment of electrokinetic cell cover plate explosion-protection equipment of sandwich construction of the present utility model.
Description of reference numerals:
1 ... battery cover board 11 ... anodal hole 12 ... negative pole hole 13 ... explosionproof hole
2 ... explosion-proof assembly 21 ... explosion-proof valve body 22 ... the first rupture pressure disc assembly 23 ... the second rupture pressure disc assembly 24 ... the 3rd rupture pressure disc assembly
221 ... first rupture pressure disc 222 ... first pressure ring 223 ... the first insulation gasket ring
231 ... second rupture pressure disc 232 ... second pressure ring 233 ... O-ring seal
241 ... the 3rd rupture pressure disc 252 ... the 3rd pressure ring 253 ... the second insulation gasket ring
Embodiment
Describe an embodiment of the electrokinetic cell cover plate explosion-protection equipment of the sandwich construction that the utility model provides in detail below with reference to Fig. 1 and Fig. 2; As shown in the figure, present embodiment mainly includes the explosionproof hole of being located on the battery cover board 1 13, the explosion-proof assembly 2 that passes this explosionproof hole 13, described explosion-proof assembly 2 comprises explosion-proof valve body 21 and the rupture pressure disc structure of being located in this explosion-proof valve body 21, and described rupture pressure disc structure includes the first rupture pressure disc assembly 22 and the second rupture pressure disc assembly 23 that sets gradually from top to bottom at least.
During specific implementation, the described first rupture pressure disc assembly 22 comprises first rupture pressure disc 221 of promising macromolecule material, and the described second rupture pressure disc assembly 23 comprises second rupture pressure disc 231 of promising aluminium foil matter.
Further, the described first rupture pressure disc assembly 22 also includes first pressure ring 222 and the first insulation gasket ring 223 of being located at described first rupture pressure disc 221 above and belows respectively.
The described second rupture pressure disc assembly 23 also includes second pressure ring 232 and the O-ring seal 233 of being located at described second rupture pressure disc 231 above and belows respectively.
In addition, on the described second rupture pressure disc assembly 23, also can be provided with the 3rd rupture pressure disc assembly 24.During specific implementation, described the 3rd rupture pressure disc assembly 24 comprises the 3rd rupture pressure disc 241 of promising macromolecule material.
Further, described the 3rd rupture pressure disc assembly 24 also includes the 3rd pressure ring 242 and the 3rd insulation gasket ring 243 of being located at described the 3rd rupture pressure disc 241 above and belows respectively.
In the present embodiment, the described explosion-proof valve body 21 and the first rupture pressure disc assembly 22, the second rupture pressure disc assembly 23, and the 3rd rupture pressure disc assembly 24 can pass through riveting molding.
Present embodiment can be made according to following steps:
The explosion-proof valve body 21 of welding on the explosionproof hole 13 of battery cover board 1;
Place the first insulation gasket ring 223 in explosion-proof valve body 21 bottoms, and after first rupture pressure disc 221 is placed on the surface thereon, compress by first pressure ring, 222 interference fit;
After second rupture pressure disc 231 is attached to second pressure ring 232 times, place O-ring seal 233 231 times, be combined into the second rupture pressure disc assembly 23, and the second rupture pressure disc assembly 23 is placed on the step of explosion-proof valve body 21 at second rupture pressure disc;
Place the 3rd insulation gasket ring 243 at the upper surface of second pressure ring 232, and after second macromolecular sheet material 242 is placed on the surface, place the 3rd pressure ring 242 thereon;
The explosion-proof valve body 21 of riveted and fixed and above-mentioned each rupture pressure disc assembly 22,23,24 promptly obtain present embodiment.
Compared with prior art, the utlity model has following advantage:
The explosion value is accurate, effectively protects the electrokinetic cell fail safe.
Macromolecular sheet material has the effect of anti-inside battery corrosion, can eliminate the battery manufacturing procedure to problems such as the influence of rupture pressure disc structure and blowout disk leakages.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (8)
1. the electrokinetic cell cover plate explosion-protection equipment of a sandwich construction, comprise the explosionproof hole of being located on the battery cover board, the explosion-proof assembly that passes this explosionproof hole, described explosion-proof assembly comprises explosion-proof valve body and is located at the interior rupture pressure disc structure of this explosion-proof valve body that it is characterized in that: described rupture pressure disc structure includes the first rupture pressure disc assembly and the second rupture pressure disc assembly that sets gradually from top to bottom at least.
2. the electrokinetic cell cover plate explosion-protection equipment of sandwich construction as claimed in claim 1, it is characterized in that: the described first rupture pressure disc assembly comprises first rupture pressure disc of promising macromolecule material, the described second rupture pressure disc assembly comprises second rupture pressure disc of promising aluminium foil matter.
3. the electrokinetic cell cover plate explosion-protection equipment of sandwich construction as claimed in claim 2 is characterized in that: the described first rupture pressure disc assembly also includes first pressure ring and the first insulation gasket ring of being located at the described first rupture pressure disc above and below respectively.
4. the electrokinetic cell cover plate explosion-protection equipment of sandwich construction as claimed in claim 2, it is characterized in that: the described second rupture pressure disc assembly also includes second pressure ring and the O-ring seal of being located at the described second rupture pressure disc above and below respectively.
5. as the electrokinetic cell cover plate explosion-protection equipment of each described sandwich construction among the claim 1-4, it is characterized in that: on the described second rupture pressure disc assembly, also be provided with the 3rd rupture pressure disc assembly.
6. the electrokinetic cell cover plate explosion-protection equipment of sandwich construction as claimed in claim 5, it is characterized in that: described the 3rd rupture pressure disc assembly comprises the 3rd rupture pressure disc of promising macromolecule material.
7. the electrokinetic cell cover plate explosion-protection equipment of sandwich construction as claimed in claim 6 is characterized in that: described the 3rd rupture pressure disc assembly also includes the 3rd pressure ring and the 3rd insulation gasket ring of being located at described the 3rd rupture pressure disc above and below respectively.
8. the electrokinetic cell cover plate explosion-protection equipment of sandwich construction as claimed in claim 7 is characterized in that: the described explosion-proof valve body and the first rupture pressure disc assembly, the second rupture pressure disc assembly, and the 3rd rupture pressure disc assembly staking moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200499345U CN203103365U (en) | 2013-01-29 | 2013-01-29 | Multi-layer-structure explosion-proof device for power battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200499345U CN203103365U (en) | 2013-01-29 | 2013-01-29 | Multi-layer-structure explosion-proof device for power battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103365U true CN203103365U (en) | 2013-07-31 |
Family
ID=48854744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200499345U Expired - Lifetime CN203103365U (en) | 2013-01-29 | 2013-01-29 | Multi-layer-structure explosion-proof device for power battery cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103365U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018019212A1 (en) * | 2016-07-29 | 2018-02-01 | 比亚迪股份有限公司 | Composite explosion-proof valve, cover plate assembly, and battery |
| CN109546051A (en) * | 2018-11-02 | 2019-03-29 | 襄阳全系康动力机械有限责任公司 | A kind of mine anti-explosion power packet |
| CN114400415A (en) * | 2021-12-31 | 2022-04-26 | 湖北亿纬动力有限公司 | Battery explosion-proof valve and battery |
| CN115513579A (en) * | 2022-10-21 | 2022-12-23 | 武汉中金泰富新能源科技有限公司 | Power battery cover plate and power battery |
| WO2023130266A1 (en) * | 2022-01-05 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electrical apparatus, and method and apparatus for preparing battery cell |
-
2013
- 2013-01-29 CN CN2013200499345U patent/CN203103365U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018019212A1 (en) * | 2016-07-29 | 2018-02-01 | 比亚迪股份有限公司 | Composite explosion-proof valve, cover plate assembly, and battery |
| CN109546051A (en) * | 2018-11-02 | 2019-03-29 | 襄阳全系康动力机械有限责任公司 | A kind of mine anti-explosion power packet |
| CN109546051B (en) * | 2018-11-02 | 2021-09-17 | 襄阳全系康动力机械有限责任公司 | Mining explosion-proof power pack |
| CN114400415A (en) * | 2021-12-31 | 2022-04-26 | 湖北亿纬动力有限公司 | Battery explosion-proof valve and battery |
| WO2023130266A1 (en) * | 2022-01-05 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electrical apparatus, and method and apparatus for preparing battery cell |
| CN115513579A (en) * | 2022-10-21 | 2022-12-23 | 武汉中金泰富新能源科技有限公司 | Power battery cover plate and power battery |
| CN115513579B (en) * | 2022-10-21 | 2023-12-01 | 武汉中金泰富新能源科技有限公司 | Power battery cover plate and power battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |