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CN201156555Y - High-safety aluminum-shell battery cover plate - Google Patents

High-safety aluminum-shell battery cover plate Download PDF

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Publication number
CN201156555Y
CN201156555Y CNU2008200441273U CN200820044127U CN201156555Y CN 201156555 Y CN201156555 Y CN 201156555Y CN U2008200441273 U CNU2008200441273 U CN U2008200441273U CN 200820044127 U CN200820044127 U CN 200820044127U CN 201156555 Y CN201156555 Y CN 201156555Y
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CN
China
Prior art keywords
explosion
proof
cover plate
battery
upper cover
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
Application number
CNU2008200441273U
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Chinese (zh)
Inventor
李中延
吴彬杰
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Dongguan Mcnair New Power Co Ltd
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Dongguan Mcnair New Power Co Ltd
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Filing date
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Priority to CNU2008200441273U priority Critical patent/CN201156555Y/en
Application granted granted Critical
Publication of CN201156555Y publication Critical patent/CN201156555Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Gas Exhaust Devices For Batteries (AREA)

Abstract

The utility model relates to a high-safety aluminum-shell battery cover plate, which comprises a battery cover plate, wherein the cover plate is provided with an explosion-proof perforation; the anti-explosion valve upper cover is provided with a plurality of air leakage holes, the periphery of the anti-explosion valve upper cover is fixed on the cover plate, the middle part of the anti-explosion valve upper cover is arched upwards, a containing cavity is formed between the anti-explosion valve upper cover and the cover plate, and the anti-explosion through holes are opposite to the containing cavity; an elastic sealing element which can elastically contract is fixedly arranged in the accommodating cavity and props against and seals the explosion-proof through hole; the upper cover of the explosion-proof valve and the elastic sealing element are combined to form an explosion-proof valve which can be opened from the inside of the battery to the outside in a single direction. The opening pressure of the one-way fluororubber valve is 0.2-0.3 MPa, the battery can be directly sealed by steel balls after liquid injection, the battery is exhausted through the one-way valve during formation, so that the sealing formation becomes feasible, meanwhile, the explosion-proof effect is achieved on the safety structure design of the battery, and the purpose of high safety explosion prevention is achieved.

Description

高安全性铝壳电池盖板 High security aluminum shell battery cover

技术领域 technical field

本实用新型涉及电池领域技术,尤其是指一种高安全性铝壳电池盖板。The utility model relates to the technology in the battery field, in particular to a high-safety aluminum shell battery cover plate.

背景技术 Background technique

现有之铝壳方形电池的电池盖板结构较简单,锂离子电池化成活化时,只通过开放注液孔进行排气,此种方式导致注液后电池内部电解液容易受环境湿度影响而吸水,而且封口后的电池防爆装置只有防爆线可以起作用。The structure of the battery cover plate of the existing aluminum shell prismatic battery is relatively simple. When the lithium-ion battery is formed and activated, it only vents through the opening of the liquid injection hole. This method causes the electrolyte inside the battery to absorb water easily due to the influence of the ambient humidity after liquid injection. , and only the explosion-proof line of the sealed battery explosion-proof device can work.

实用新型内容Utility model content

本实用新型针对现有技术存在之缺陷,主要目的是提供一种高安全性铝壳电池盖板。其不通过注液孔排气,而通过另一单向阀门排气,可实现封口化成,从而达到高安全性防爆的目的。The utility model aims at the defects existing in the prior art, and the main purpose is to provide a high-safety aluminum shell battery cover plate. It does not exhaust through the liquid injection hole, but exhausts through another one-way valve, which can realize sealing and formation, so as to achieve the purpose of high safety and explosion protection.

为达到上述目的,本实用新型采用如下之技术方案:In order to achieve the above object, the utility model adopts the following technical solutions:

一种高安全性铝壳电池盖板,包括A high-safety aluminum shell battery cover, including

一电池盖板,该盖板上设有一防爆穿孔;A battery cover plate, the cover plate is provided with an explosion-proof perforation;

一防爆阀上盖,该防爆阀上盖设置有多个泄气孔,防爆阀上盖的周缘固定于盖板上,防爆阀上盖的中部向上拱起,并与盖板之间形成有一收容空腔,前述防爆穿孔正对该收容空腔;An explosion-proof valve upper cover, the explosion-proof valve upper cover is provided with a plurality of vent holes, the periphery of the explosion-proof valve upper cover is fixed on the cover plate, the middle part of the explosion-proof valve upper cover arches upwards, and a receiving space is formed between the explosion-proof valve upper cover and the cover plate Cavity, the aforementioned explosion-proof perforation is facing the receiving cavity;

一可弹性收缩的弹性密封件固装于前述收容空腔内,并顶封住前述防爆穿孔;An elastically shrinkable elastic seal is fixed in the aforesaid accommodating cavity, and top seals the aforesaid explosion-proof perforation;

该防爆阀上盖与该弹性密封件结合形成一个可以由电池内部向外部单向开启的防爆阀门。The upper cover of the explosion-proof valve is combined with the elastic sealing member to form an explosion-proof valve that can be opened one-way from the inside of the battery to the outside.

所述弹性密封件为氟橡胶。The elastic seal is fluorine rubber.

本实用新型与现用技术相比,其有益效果在于,在原有盖板的结构上增加一个可以由电池内部向外部单向开启的防爆氟橡胶阀门,单向氟橡胶阀门的开启压力为0.2~0.3Mpa,电池在注液后可以直接钢珠封口,化成时通过单向阀门排气,使封口化成变为可行,同时对电池的安全结构设计起到防爆的作用,达到高安全性防爆的目的。Compared with the existing technology, the utility model has the beneficial effect that an explosion-proof fluororubber valve that can be opened one-way from the inside of the battery to the outside is added to the structure of the original cover plate, and the opening pressure of the one-way fluororubber valve is 0.2~ 0.3Mpa, the battery can be directly sealed with steel balls after liquid injection, and exhausted through a one-way valve during formation, making the sealing and formation feasible, and at the same time plays an explosion-proof role in the safety structure design of the battery, achieving the purpose of high safety explosion-proof.

附图说明 Description of drawings

图1为本实用新型一实施例的截面示图。Fig. 1 is a cross-sectional view of an embodiment of the present invention.

附图标识说明:Explanation of the accompanying drawings:

10、盖板             11、注液孔10. Cover plate 11. Liquid injection hole

12、防爆穿孔         20、防爆阀上盖12. Explosion-proof perforation 20. Upper cover of explosion-proof valve

21、泄气孔           30、弹性密封件21. Vent hole 30. Elastic seal

40、泄压缝隙40. Pressure relief gap

具体实施方式 Detailed ways

下面结合附图与具体实施例对本实用新型作进一步说明:Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

参照图1为本实用新型一最佳实施例,具体包括方形铝壳盖板10,盖板10上设置有注液孔11,于注液孔11的侧旁另设有一防爆穿孔12,于该防爆穿孔12外封盖有一防爆阀上盖20,该防爆阀上盖20的周缘固定于盖板10上,防爆阀上盖20的中部向上拱起,并与盖板10之间形成有一收容空腔,防爆阀上盖20的侧部还设置有多个泄气孔21。Referring to Fig. 1, it is a preferred embodiment of the present utility model, which specifically includes a square aluminum shell cover plate 10, a liquid injection hole 11 is arranged on the cover plate 10, and an explosion-proof perforation 12 is additionally provided on the side of the liquid injection hole 11. An explosion-proof valve loam cake 20 is arranged on the outer cover of the explosion-proof perforation 12, and the periphery of the explosion-proof valve loam cake 20 is fixed on the cover plate 10. cavity, and a plurality of vent holes 21 are also provided on the side of the explosion-proof valve upper cover 20 .

一由氟橡胶制成的弹性密封件30固装于前述收容空腔内,并顶封住防爆穿孔12,由于氟橡胶具有一定的收缩弹性,因此该防爆阀上盖20与该弹性密封件30结合形成一个可以由电池内部向外部单向开启的防爆阀门,该阀门的开启压力为0.2~0.3Mpa。参照图2,化成时电池内所产生的气压作用于弹性密封件30上,促使该弹性密封件30收缩变形,形成一泄压缝隙40,气体经该泄压缝隙40后由泄气孔21排出,达到泄压防爆的功效。泄压后,电池内气压下降,该弹性密封件30回复到原来的形状而继续顶封住该防爆穿孔12。An elastic seal 30 made of fluorine rubber is fixedly installed in the aforementioned accommodation cavity, and top seals the explosion-proof perforation 12. Since fluorine rubber has a certain shrinkage elasticity, the explosion-proof valve upper cover 20 and the elastic seal 30 Combined to form an explosion-proof valve that can be opened one-way from the inside of the battery to the outside, and the opening pressure of the valve is 0.2-0.3Mpa. Referring to Fig. 2, the air pressure generated in the battery during formation acts on the elastic sealing member 30, causing the elastic sealing member 30 to shrink and deform to form a pressure relief gap 40, and the gas is discharged from the vent hole 21 after passing through the pressure relief gap 40, To achieve the effect of pressure relief and explosion protection. After the pressure is released, the air pressure in the battery drops, and the elastic sealing member 30 returns to its original shape and continues to seal the explosion-proof perforation 12 .

藉此电池在注液后可以直接用钢珠封住注液孔11,化成时可通过前述单向阀门排气,而不用注液孔11排气,使封口化成变为可行,同时对电池的安全结构设计起到防爆的作用。In this way, the battery can directly seal the liquid injection hole 11 with steel balls after the liquid is injected, and the gas can be exhausted through the aforementioned one-way valve instead of the liquid injection hole 11 during formation, so that the sealing and formation becomes feasible, and at the same time, it is safe for the battery. The structural design plays the role of explosion protection.

以上所述,仅是本实用新型一种高安全性铝壳电池盖板的较佳实施例而已,并非对本实用新型的技术范围作任何限制,例如,实施例所述之弹性密封件不仅局限于氟橡胶,其还可采用任何其它具有弹性收缩特性的物质取代。故凡是依据本实用新型的技术实质对以上实施例所作的任何细微修改、等同变化与修饰,均仍属于本实用新型技术方案的范围内。The above is only a preferred embodiment of a high-safety aluminum case battery cover of the present invention, and is not intended to limit the technical scope of the present invention. For example, the elastic seal described in the embodiment is not limited to Viton, which can also be replaced by any other substance with elastic shrinkage properties. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the scope of the technical solution of the present invention.

Claims (2)

1、一种高安全性铝壳电池盖板,其特征在于:包括1. A high-safety aluminum shell battery cover, characterized in that: comprising 一电池盖板,该盖板上设有一防爆穿孔;A battery cover plate, the cover plate is provided with an explosion-proof perforation; 一防爆阀上盖,该防爆阀上盖设置有多个泄气孔,防爆阀上盖的周缘固定于盖板上,防爆阀上盖的中部向上拱起,并与盖板之间形成有一收容空腔,前述防爆穿孔正对该收容空腔;An explosion-proof valve upper cover, the explosion-proof valve upper cover is provided with a plurality of vent holes, the periphery of the explosion-proof valve upper cover is fixed on the cover plate, the middle part of the explosion-proof valve upper cover arches upwards, and a receiving space is formed between the explosion-proof valve upper cover and the cover plate Cavity, the aforementioned explosion-proof perforation is facing the receiving cavity; 一可弹性收缩的弹性密封件固装于前述收容空腔内,并顶封住前述防爆穿孔;An elastically shrinkable elastic seal is fixed in the aforesaid accommodating cavity, and top seals the aforesaid explosion-proof perforation; 该防爆阀上盖与该弹性密封件结合形成一个可以由电池内部向外部单向开启的防爆阀门。The upper cover of the explosion-proof valve is combined with the elastic sealing member to form an explosion-proof valve that can be opened one-way from the inside of the battery to the outside. 2、根据权利要求1所述的高安全性铝壳电池盖板,其特征在于:所述弹性密封件为氟橡胶。2. The high-safety aluminum case battery cover plate according to claim 1, wherein the elastic sealing member is fluorine rubber.
CNU2008200441273U 2008-02-20 2008-02-20 High-safety aluminum-shell battery cover plate Expired - Fee Related CN201156555Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200441273U CN201156555Y (en) 2008-02-20 2008-02-20 High-safety aluminum-shell battery cover plate

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944575A (en) * 2010-09-08 2011-01-12 徐敖奎 Secondary lithium battery
CN102201553A (en) * 2010-01-20 2011-09-28 张力 Battery or capacitor packaging housing
CN103560218A (en) * 2013-10-16 2014-02-05 广州力柏能源科技有限公司 Battery safety valve device, battery and preparation method of battery
CN104485431A (en) * 2014-12-23 2015-04-01 常熟高嘉能源科技有限公司 Power battery cover plate assembly
CN105280981A (en) * 2014-07-16 2016-01-27 福特全球技术公司 Battery pack venting system for electrified vehicle
CN106654113A (en) * 2016-12-20 2017-05-10 天津森克帕沃新能源技术开发有限公司 Battery shell with exhaust port and battery
CN112331971A (en) * 2020-11-27 2021-02-05 珠海市至力电池有限公司 Explosion-proof cover plate assembly of lithium ion battery

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102201553A (en) * 2010-01-20 2011-09-28 张力 Battery or capacitor packaging housing
CN102201553B (en) * 2010-01-20 2015-03-11 张力 Battery or capacitor packaging housing
CN101944575A (en) * 2010-09-08 2011-01-12 徐敖奎 Secondary lithium battery
CN101944575B (en) * 2010-09-08 2013-01-16 徐敖奎 Secondary lithium battery
CN103560218A (en) * 2013-10-16 2014-02-05 广州力柏能源科技有限公司 Battery safety valve device, battery and preparation method of battery
CN103560218B (en) * 2013-10-16 2016-01-13 广州力柏能源科技有限公司 Cell safety valve gear and battery and preparation method thereof thereof
CN105280981A (en) * 2014-07-16 2016-01-27 福特全球技术公司 Battery pack venting system for electrified vehicle
CN105280981B (en) * 2014-07-16 2021-04-27 福特全球技术公司 Battery pack ventilation system for electrified vehicles
CN104485431A (en) * 2014-12-23 2015-04-01 常熟高嘉能源科技有限公司 Power battery cover plate assembly
CN106654113A (en) * 2016-12-20 2017-05-10 天津森克帕沃新能源技术开发有限公司 Battery shell with exhaust port and battery
CN106654113B (en) * 2016-12-20 2023-04-18 森克创能(天津)新能源科技有限公司 Battery case with exhaust port and battery
CN112331971A (en) * 2020-11-27 2021-02-05 珠海市至力电池有限公司 Explosion-proof cover plate assembly of lithium ion battery

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081126

Termination date: 20130220