CN203398194U - Dual-protection explosion-proof equipment of power battery cover plate - Google Patents
Dual-protection explosion-proof equipment of power battery cover plate Download PDFInfo
- Publication number
- CN203398194U CN203398194U CN201320368084.5U CN201320368084U CN203398194U CN 203398194 U CN203398194 U CN 203398194U CN 201320368084 U CN201320368084 U CN 201320368084U CN 203398194 U CN203398194 U CN 203398194U
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- Prior art keywords
- explosion
- proof
- cover plate
- pressure disc
- rupture pressure
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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 dual-protection explosion-proof equipment of a power battery cover plate. Two explosion-proof structures are arranged on a battery cover plate; each explosion-proof structure comprises an explosion-proof hole, an annular explosion-proof gravure step and an explosion-proof film, wherein the explosion-proof hole is formed in the battery cover plate; the annular explosion-proof gravure step is arranged on the lower edge of the explosion-proof hole; the explosion-proof film is welded on the annular explosion-proof gravure step and is capable of completely covering the explosion-proof hole. The dual-protection explosion-proof equipment of the power battery cover plate disclosed by the utility model has two safe explosion-proof structures, so that a using safety coefficient of a battery is increased; meanwhile, a gas exhaustion area is increased, so that gas inside the battery can be quickly and effectively exhausted when the battery fails, and therefore, explosion-proof effect is strengthened.
Description
Technical field
The utility model relates to battery, relates in particular to a kind of cover plate of power battery explosion-protection equipment.
Background technology
Along with becoming increasingly conspicuous of problem of environmental pollution, low-carbon economy has become the main flow of economic development.Hybrid vehicle and electric automobile, as the representative of new-energy automobile, have obtained any of consumer gradually.Electrokinetic cell, as the major impetus source of new-energy automobile, has become the critical component of electric automobile.
Along with the extensive application of electrokinetic cell, its security performance more and more receives people's concern.When battery occurs when abnormal, can producing a large amount of gas at inside battery, cause the interior pressure of battery sharply to increase.Now, if a large amount of gases that produce can not be discharged in time, battery will be blasted, and causes security incident.For fear of the generation of blast, improve the security performance of battery, the explosion-protection equipment on battery cover board is emphasis wherein just.Existing explosion-protection equipment generally arranges an explosionproof hole on cover plate of power battery, then on explosionproof hole, weld rupture pressure disc or burst disk, when cell internal pressure increases to certain value, gas can be washed rupture pressure disc or burst disk open, Exhaust Gas, reduce cell internal pressure, thereby avoid the generation of blast.
But there is following defect in above-mentioned existing explosion-proof device of power battery: 1. the single blast resistance construction adopting, once burst disk or rupture pressure disc lost efficacy, under dangerous air pressure, rupture pressure disc or burst disk fail to open in time, will cause the danger of battery explosion; 2. while breaking down due to battery, battery air pressure of interior moment is very large, and the area of single burst disk or rupture pressure disc discharge air pressure is too small, and electric pool gas can not discharge in time, easily causes the danger of battery explosion.
Utility model content
In order to solve the problem that cover plate of power battery blast resistance construction is single, gas discharging area is too small; the utility model provides a kind of cover plate of power battery duplicate protection explosion-protection equipment; there are two blast resistance constructions; to battery, provide duplicate protection; increase gas discharging area, effectively improved safety in utilization and the practicality of electrokinetic cell.
The utility model adopts following technical scheme:
A kind of cover plate of power battery duplicate protection explosion-protection equipment; on battery cover board, be provided with two blast resistance constructions, each blast resistance construction comprises explosionproof hole, the explosion-proof gravure step of annular that is arranged on described explosionproof hole lower edge being arranged on battery cover board and is welded on the rupture pressure disc on the explosion-proof gravure step of described annular.
Preferably, the explosionproof hole area of described two blast resistance constructions equates.
Preferably, described rupture pressure disc indent undulate also covers explosionproof hole completely.
Preferably, the film thickness at described rupture pressure disc edge is less than the degree of depth of the explosion-proof gravure step of described annular.
Preferably, the film thickness of described rupture pressure disc female parts is less than the film thickness at described rupture pressure disc edge.
Preferably, the lower surface of described rupture pressure disc is provided with the upwards explosion-proof breach of annular of indent, and described explosion-proof breach is positioned at the highest point of rupture pressure disc female parts.
Preferably, the rupture pressure disc thickness of the explosion-proof indentation, there of described annular is less than the film thickness of described rupture pressure disc female parts.
The beneficial effects of the utility model are:
The utility model by arranging two blast resistance constructions on battery cover board; each blast resistance construction includes explosionproof hole, the explosion-proof gravure step of annular that is arranged on described explosionproof hole lower edge being arranged on battery cover board and is welded on the rupture pressure disc on the explosion-proof gravure step of described annular; thereby reach the explosion-proof object of duplicate protection; gas discharging area when increase battery breaks down; discharge quickly and effectively inside battery gas; strengthen coefficient of safety, improve safety in utilization and the practicality of electrokinetic cell.
Accompanying drawing explanation
Fig. 1 is the vertical view of the utility model embodiment battery cover board.
Fig. 2 is the cutaway view of explosionproof hole on the utility model embodiment battery cover board.
Fig. 3 is the cutaway view of blast resistance construction on the utility model embodiment battery cover board.
Fig. 4 is the enlarged drawing in the utility model Tu3Zhong B district.
Description of reference numerals:
1...... battery cover board 2...... blast resistance construction
21...... the explosion-proof gravure step 23...... rupture pressure disc of explosionproof hole 22...... annular
24...... annular explosion-proof breach
Embodiment
Below in conjunction with the Fig. 1 to Fig. 4 in accompanying drawing, cover plate of power battery duplicate protection explosion-protection equipment of the present utility model is described in further detail.
The cover plate of power battery duplicate protection explosion-protection equipment of the present embodiment; please refer to Fig. 1 to Fig. 4; comprise two blast resistance constructions 2; each blast resistance construction includes explosionproof hole 21, the explosion-proof gravure step 22 of annular that is arranged on described explosionproof hole 21 lower edges being arranged on battery cover board 1 and is welded on the rupture pressure disc 23 on the explosion-proof gravure step 22 of described annular; realize the explosion-proof object of duplicate protection; strengthen coefficient of safety, improve the safe and practical property of electrokinetic cell.
Cover plate of power battery duplicate protection explosion-protection equipment of the present utility model, please refer to Fig. 1 to Fig. 4, on the basis of previous technique scheme, can be specifically, and described two explosionproof hole 21 areas equate.
Cover plate of power battery duplicate protection explosion-protection equipment of the present utility model; please refer to Fig. 1 to Fig. 4; on the basis of previous technique scheme, can be specifically; described rupture pressure disc 23 indent undulates also cover explosionproof hole 21 completely; the film thickness at described rupture pressure disc 23 edges is less than the degree of depth of the explosion-proof gravure step 22 of described annular, and the film thickness of described rupture pressure disc 23 female parts is less than the film thickness at described rupture pressure disc 23 edges.
Cover plate of power battery duplicate protection explosion-protection equipment of the present utility model; please refer to Fig. 1 to Fig. 4; on the basis of previous technique scheme, can be specifically; the lower surface of described rupture pressure disc 23 is provided with the upwards explosion-proof breach 24 of annular of indent, and the explosion-proof breach 24 of described annular is positioned at the highest point of rupture pressure disc 23 female parts.When battery breaks down, when inside battery air pressure does not reach the critical value of blast, rupture pressure disc has certain cushion space, can not broken through at once, avoids occurring the phenomenon of waste.
Cover plate of power battery duplicate protection explosion-protection equipment of the present utility model, please refer to Fig. 1 to Fig. 4, on the basis of previous technique scheme, can be specifically, and rupture pressure disc 23 thickness at the explosion-proof breach of described annular 24 places are less than the film thickness of described rupture pressure disc 23 female parts.When battery is blasted, when in battery, gas pressure rises to the critical value of blasting, gas is easy to break through the rupture pressure disc 23 of annular explosion-proof indentation, there, thereby wash rupture pressure disc 23 completely open, moment emission gases, reduce inside battery air pressure, avoid causing the danger of battery explosion.
The above is preferred implementation of the present utility model; but can not be as protection range of the present utility model; every equivalence variation of having done according to the design spirit in the utility model or modification or geometric ratio zoom in or out etc., all should think and fall into protection range of the present utility model.
Claims (7)
1. a cover plate of power battery duplicate protection explosion-protection equipment; it is characterized in that: on battery cover board, be provided with two blast resistance constructions, described in each, blast resistance construction includes explosionproof hole, the explosion-proof gravure step of annular that is arranged on described explosionproof hole lower edge being arranged on described battery cover board and is welded on the rupture pressure disc on the explosion-proof gravure step of described annular.
2. cover plate of power battery duplicate protection explosion-protection equipment according to claim 1, is characterized in that: the explosionproof hole area of two described blast resistance constructions equates.
3. cover plate of power battery duplicate protection explosion-protection equipment according to claim 1, is characterized in that: described rupture pressure disc indent undulate also covers explosionproof hole completely.
4. cover plate of power battery duplicate protection explosion-protection equipment according to claim 1, is characterized in that: the film thickness at described rupture pressure disc edge is less than the degree of depth of the explosion-proof gravure step of described annular.
5. cover plate of power battery duplicate protection explosion-protection equipment according to claim 3, is characterized in that: the film thickness of described rupture pressure disc female parts is less than the film thickness at described rupture pressure disc edge.
6. cover plate of power battery duplicate protection explosion-protection equipment according to claim 1, is characterized in that: the lower surface of described rupture pressure disc is provided with the upwards explosion-proof breach of annular of indent, and the explosion-proof breach of described annular is positioned at the highest point of rupture pressure disc female parts.
7. cover plate of power battery duplicate protection explosion-protection equipment according to claim 6, is characterized in that: the rupture pressure disc thickness of the explosion-proof indentation, there of described annular is less than the film thickness of described rupture pressure disc female parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320368084.5U CN203398194U (en) | 2013-06-19 | 2013-06-19 | Dual-protection explosion-proof equipment of power battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320368084.5U CN203398194U (en) | 2013-06-19 | 2013-06-19 | Dual-protection explosion-proof equipment of power battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398194U true CN203398194U (en) | 2014-01-15 |
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ID=49909702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320368084.5U Expired - Lifetime CN203398194U (en) | 2013-06-19 | 2013-06-19 | Dual-protection explosion-proof equipment of power battery cover plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN203398194U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872275A (en) * | 2014-03-03 | 2014-06-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
| CN107768577A (en) * | 2016-08-16 | 2018-03-06 | 原道电子股份有限公司 | Battery with blast resistance construction |
| CN108598336A (en) * | 2018-06-15 | 2018-09-28 | 成都科微科技有限公司 | Multifunctional new energy battery structure |
| CN114630536A (en) * | 2022-03-29 | 2022-06-14 | 广东电网有限责任公司 | Protective cover plate |
| US11532850B2 (en) | 2018-07-31 | 2022-12-20 | Samsung Sdi Co., Ltd. | Rechargeable battery having plurality of vents |
| AT18312U1 (en) * | 2023-08-04 | 2024-09-15 | Hyres Gmbh | Housings for accommodating electronic components and inverters with such a housing |
| AT18313U1 (en) * | 2023-08-04 | 2024-09-15 | Hyres Gmbh | Housings for accommodating electronic components and inverters with such a housing |
-
2013
- 2013-06-19 CN CN201320368084.5U patent/CN203398194U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872275A (en) * | 2014-03-03 | 2014-06-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
| CN107768577A (en) * | 2016-08-16 | 2018-03-06 | 原道电子股份有限公司 | Battery with blast resistance construction |
| CN108598336A (en) * | 2018-06-15 | 2018-09-28 | 成都科微科技有限公司 | Multifunctional new energy battery structure |
| US11532850B2 (en) | 2018-07-31 | 2022-12-20 | Samsung Sdi Co., Ltd. | Rechargeable battery having plurality of vents |
| CN114630536A (en) * | 2022-03-29 | 2022-06-14 | 广东电网有限责任公司 | Protective cover plate |
| CN114630536B (en) * | 2022-03-29 | 2024-02-13 | 广东电网有限责任公司 | Protective cover plate |
| AT18312U1 (en) * | 2023-08-04 | 2024-09-15 | Hyres Gmbh | Housings for accommodating electronic components and inverters with such a housing |
| AT18313U1 (en) * | 2023-08-04 | 2024-09-15 | Hyres Gmbh | Housings for accommodating electronic components and inverters with such a housing |
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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: 20140115 |