CN101867029A - Anti-explosion exhaust structure of battery - Google Patents
Anti-explosion exhaust structure of battery Download PDFInfo
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- CN101867029A CN101867029A CN201010210864A CN201010210864A CN101867029A CN 101867029 A CN101867029 A CN 101867029A CN 201010210864 A CN201010210864 A CN 201010210864A CN 201010210864 A CN201010210864 A CN 201010210864A CN 101867029 A CN101867029 A CN 101867029A
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- guide groove
- flexible pipe
- explosion
- battery
- exhaust structure
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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)
- Secondary Cells (AREA)
Abstract
The invention relates to an anti-explosion exhaust structure of a battery, belonging to the technical field of safety explosion prevention of lithium-ion power battery systems. The anti-explosion exhaust structure comprises a tank body, guide slots, anti-explosion ports, safety valves and flexible tubes. The anti-explosion ports or the safety valves of a power battery are connected by the guide slots which are connected by using the flexible tubes, the tail ends of the flexible tubes are directly communicated with the outer wall of the tank body to form a primary pressure-releasing port, and all the anti-explosion ports or safety valves form a passage through the guide slots or the flexible tubes to be directly connected with the outside and are safely isolated from high-temperature terminals and other parts in the tank body. The guide slots all tightly contact with the flexible tubes and other structures in the tank body. The invention has the advantages of active protection, rapid pressure release and effective isolation and can obviously improve the safety levels of battery banks or battery packs; an air pressure sensor or an air analyzer is connected with the anti-explosion exhaust structure so that early warning or dynamic fault analysis is realized; and the invention has the advantages of relatively simple manufacturing process and relatively low cost of the guide slots and the flexible tubes and easy realization, and the insulating guide slots with high-temperature resistance can also have the function of fixing battery cells.
Description
Technical field
The invention belongs to the safety anti-explosive technical field of lithium-ion-power cell system, particularly relate to a kind of anti-explosion exhaust structure of battery, be used for the lithium-ion-power cell system.
Background technology
Along with development of technology, the application of lithium-ion-power cell system is more and more wider, and is also more and more higher to the security requirement of lithium-ion-power cell system.Have only some Safety Design or considerations at present at monomer electricity core, such as on battery container, designing a valve separately, fill sealing with high temperature-sensitive low melting material, fusing pressure release when high temperature, perhaps use on packaging composite film and form weak location pressure release etc. with the mould indentation, but these designs all can not effectively solve the power brick that formed by the combination of a plurality of monomer electrokinetic cells or the safety problem of battery pack, because monomer electricity core is easy to be ignited by the battery terminal of high temperature in the power brick casing because of the high temperature imflammable gas of pressure release ejection, thereby causes even more serious safety problem.Safety anti-explosive exhaust structure of the present invention provides a solution with regard to the problems referred to above, and this scheme can prevent the diffusion of high-temperature combustible gas body and avoid contacting with burning things which may cause a fire disaster to have the feasibility and the applicability of height under the prerequisite of effectively pressure release.
Summary of the invention
The object of the present invention is to provide a kind of anti-explosion exhaust structure of battery, solved electrokinetic cell pressure release, fire prevention, explosion-proof problem.
Collect the flammable explosive gas and the discharging in time of battery pack or the generation of power brick casing by designing a kind of safeguard construction, simultaneously ignition sources such as these gases and battery high-temperature terminal are contacted isolation, thereby thoroughly solve the safety problem that fuel gas causes in the battery pack.
In order to achieve the above object, the present invention has designed a kind of electric core safeguard construction, adopts following design:
The present invention includes casing, guide groove, venting, rupture pressure disc or safety valve, flexible pipe; Guide groove is communicated with each venting of electrokinetic cell or safety valve one by one, be connected in series with flexible pipe again between each guide groove, hose end directly communicates with cabinet exterior and forms total mouthful an of pressure release, therefore, all venting or safety valve just can by guide groove and flexible pipe be connected to form that path directly links to each other with the external world and with high temperature terminal, casing in miscellaneous part safety isolate.Guide groove and flexible pipe size are handled flexibly according to electric core and box sizes, must guarantee that guide groove closely contacts with flexible pipe, electric core or main elements such as module shell, cabinet wall.When producing gas in power brick or the battery pack, can directly drain into outside the power brick, thereby prevent that effectively the high-temperature combustible gas body from being ignited in Battery case by guide groove and flexible pipe.
Guide groove is made with high-temperature insulation material, and flexible pipe is made with high-temperature insulation material.
Miscellaneous part is lithium ion power electricity core and rupture pressure disc or safety valve in the casing of the present invention, electric core pole.
Safeguard construction of the present invention has following advantage than current driving force battery pack or power brick air venting explosion-proof technology:
1, initiatively protection, quick pressure releasing is also effectively isolated, and can significantly improve battery pack or power brick safe class.
2, can be according to the practical structures and the applied environment of battery case, the total pressure relief opening of flexible design: total in case of necessity pressure relief opening even energy and smoke detector, baroceptor or gas analyzer connect to realize early warning or dynamic fault analysis.
3, guide groove is relative with the flexible pipe manufacturing process simple, and cost is cheap relatively, be easy to realize, and resistant to elevated temperatures insulation guide groove can also play the effect of fixing electric core.
Description of drawings
Fig. 1 is to be the representative configuration structural representation of electrokinetic cell.Wherein, lithium-ion-power cell bag 1, rupture pressure disc or safety valve 2, battery electrode column or terminal 3, lithium ion single electricity core 4.
Fig. 2 is guide barrel construction and schematic appearance.Wherein, guide groove 5.
Fig. 3 forms air venting path schematic diagram for flexible pipe guide groove being connected the back.Wherein, the flexible pipe 6 of connection guide groove, venting 7.
Fig. 4 is guide groove schematic diagram (front view).
Fig. 5 is guide groove schematic diagram (vertical view).
Fig. 6 is guide groove schematic diagram (left view).
Embodiment
Fig. 1～6 are a kind of embodiment of the present invention.
The present invention includes casing, guide groove 5, venting, rupture pressure disc or safety valve 2, flexible pipe 6; Guide groove 5 is communicated with each venting of electrokinetic cell or safety valve 2 one by one, be connected in series with flexible pipe 6 again between each guide groove 5, flexible pipe 6 terminal directly communicating with cabinet exterior form total mouthful 7 of a pressure release, therefore, all venting or safety valve just can by guide groove and flexible pipe be connected to form that path directly links to each other with the external world and with high temperature terminal, casing in miscellaneous part safety isolate.Guide groove and flexible pipe size are handled flexibly according to electric core and box sizes, must guarantee guide groove and flexible pipe, electric core or module shell, and main elements such as cabinet wall closely contact.When producing gas in power brick or the battery pack, can directly drain into outside the power brick, thereby prevent that effectively the high-temperature combustible gas body from being ignited in Battery case by guide groove and flexible pipe.
Guide groove generally is processed into the square tubular structure of first and last end sealing, the long 20-30mm of inwall, wide 10-20mm, wall thickness is decided on material, if adopt high temperature resistant Teflon material, then thickness is 2-3mm, and the guide groove opening is decided according to electronic box explosion-proof valve shape and position, employing dovetail groove or wedge structure cooperate with the explosion-proof valve outer wall and seal, and reserve hose coupling (mouth); Flexible pipe generally adopts PVC or other temperature-resistant materials, and diameter is 15-20mm, wall thickness 1-2mm, and all guide grooves link to each other with flexible pipe and form path with the external world.
Guide groove as shown in Figure 4, because electric core rupture pressure disc/safety valve is a cylindrical shape, therefore, guide groove one side need be left the hole with the rupture pressure disc equal number, the internal diameter in hole equates with the rupture pressure disc external diameter, the guide groove of completion of processing directly is bumped into makes guide groove cooperate fully with rupture pressure disc/safety valve, with flexible pipe each hose connection being linked to each other just obtains the blast resistance construction of accompanying drawing 3 again.
Claims (3)
1. an anti-explosion exhaust structure of battery comprises casing, guide groove, venting, rupture pressure disc or safety valve, flexible pipe; It is characterized in that, guide groove (5) is with each venting of electrokinetic cell or rupture pressure disc or safety valve (2) connection, connect with flexible pipe (6) between each guide groove (5), terminal directly the communicating with cabinet exterior of flexible pipe (6) forms total mouthful an of pressure release, all ventings or rupture pressure disc or safety valve form path by guide groove (5) or flexible pipe (6) and directly link to each other with the external world, and with high temperature terminal, casing in the miscellaneous part isolation; Guide groove (5) closely contacts with flexible pipe, electric core housing, cabinet wall; When producing gas in power brick or the battery pack, can directly drain into outside the power brick, thereby prevent that effectively the high-temperature combustible gas body from being ignited in Battery case by guide groove and flexible pipe.
2. anti-explosion exhaust structure of battery according to claim 1 is characterized in that guide groove is made with high-temperature insulation material, and flexible pipe is made with high-temperature insulation material.
3. anti-explosion exhaust structure of battery according to claim 1 is characterized in that, miscellaneous part is electric core and rupture pressure disc or safety valve in the described casing, electric core pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102108648A CN101867029B (en) | 2010-06-18 | 2010-06-18 | Anti-explosion exhaust structure of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102108648A CN101867029B (en) | 2010-06-18 | 2010-06-18 | Anti-explosion exhaust structure of battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101867029A true CN101867029A (en) | 2010-10-20 |
| CN101867029B CN101867029B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102108648A Active CN101867029B (en) | 2010-06-18 | 2010-06-18 | Anti-explosion exhaust structure of battery |
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| CN (1) | CN101867029B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105518898A (en) * | 2013-09-05 | 2016-04-20 | 株式会社丰田自动织机 | Battery module |
| CN107394086A (en) * | 2017-06-07 | 2017-11-24 | 惠州市沃瑞科技有限公司 | A kind of explosion-proof balanced valve applied on battery core module |
| CN109509928A (en) * | 2018-11-12 | 2019-03-22 | 北京理工大学 | A kind of soft pack cell for preventing from overcharging thermal runaway and mould group for electric car |
| CN110649201A (en) * | 2019-10-12 | 2020-01-03 | 中车资阳机车有限公司 | Power battery module structure for locomotive |
| WO2020133660A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN112151699A (en) * | 2019-06-28 | 2020-12-29 | 比亚迪股份有限公司 | Battery pack and vehicle |
| CN114243201A (en) * | 2021-12-20 | 2022-03-25 | 风帆（扬州）有限责任公司 | High valve accuse non-maintaining battery of security |
| CN114843697A (en) * | 2022-07-04 | 2022-08-02 | 广东采日能源科技有限公司 | Battery module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI587559B (en) * | 2016-08-08 | 2017-06-11 | A battery with an explosion-proof structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11339747A (en) * | 1998-05-29 | 1999-12-10 | Honda Motor Co Ltd | Gas exhaust device for battery |
| CN1292576A (en) * | 1999-10-08 | 2001-04-25 | 松下电器产业株式会社 | Battery |
| CN2711911Y (en) * | 2004-06-17 | 2005-07-20 | 深圳市艾博尔新能源有限公司 | Explosion proof cover assembly for lithium cell |
-
2010
- 2010-06-18 CN CN2010102108648A patent/CN101867029B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11339747A (en) * | 1998-05-29 | 1999-12-10 | Honda Motor Co Ltd | Gas exhaust device for battery |
| CN1292576A (en) * | 1999-10-08 | 2001-04-25 | 松下电器产业株式会社 | Battery |
| CN2711911Y (en) * | 2004-06-17 | 2005-07-20 | 深圳市艾博尔新能源有限公司 | Explosion proof cover assembly for lithium cell |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105518898A (en) * | 2013-09-05 | 2016-04-20 | 株式会社丰田自动织机 | Battery module |
| CN107394086A (en) * | 2017-06-07 | 2017-11-24 | 惠州市沃瑞科技有限公司 | A kind of explosion-proof balanced valve applied on battery core module |
| CN107394086B (en) * | 2017-06-07 | 2023-12-01 | 惠州市沃瑞科技有限公司 | Explosion-proof balance valve applied to battery cell module |
| CN109509928A (en) * | 2018-11-12 | 2019-03-22 | 北京理工大学 | A kind of soft pack cell for preventing from overcharging thermal runaway and mould group for electric car |
| WO2020133660A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Battery pack |
| US11600886B2 (en) | 2018-12-29 | 2023-03-07 | Contemporary Amperex Technology Co., Limited | Battery pack |
| CN112151699A (en) * | 2019-06-28 | 2020-12-29 | 比亚迪股份有限公司 | Battery pack and vehicle |
| CN112151699B (en) * | 2019-06-28 | 2022-05-13 | 比亚迪股份有限公司 | Battery pack and vehicle |
| CN110649201A (en) * | 2019-10-12 | 2020-01-03 | 中车资阳机车有限公司 | Power battery module structure for locomotive |
| CN114243201A (en) * | 2021-12-20 | 2022-03-25 | 风帆（扬州）有限责任公司 | High valve accuse non-maintaining battery of security |
| CN114243201B (en) * | 2021-12-20 | 2023-11-17 | 风帆（扬州）有限责任公司 | High valve accuse maintenance-free battery of security |
| CN114843697A (en) * | 2022-07-04 | 2022-08-02 | 广东采日能源科技有限公司 | Battery module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101867029B (en) | 2012-05-23 |
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Effective date of registration: 20180305 Address after: 213000 room 419, No. 218, No. 218, Hongkou Road, Jiangsu Zhongguancun science and Technology Industrial Park, Liyang City, Liyang, Jiangsu Patentee after: Changzhou pride power battery technology Co. Address before: 102606 Beijing City Economic and Technological Development Zone Caiyu mining and Road No. 1 Patentee before: Beijing Pride New Energy Battery Co., Ltd. |