The utility model discloses an explosion-proof outer shell of a lithium battery, including an explosion-proof shell frame, an explosion proof piece, a lithium battery slot and an explosion-proof cap. A clamping part is arranged on the two ends of the explosion-proof piece, and a card slot is arranged in the clamping part, and a ring groove is arranged between the explosion proof piece and the explosion-proof cap, and a ring groove is opened under the clamping part, and a ring concave is opened below the clamping part. The slot is tightly connected with a colloid, an insulating ring is connected to one side of the colloid, a sealing ring is set under the insulating ring, the explosion proof layer is attached to the inner face of the explosion-proof cap and the explosion cap, and a lithium battery slot is arranged between the explosion-proof sheet and the explosion-proof cap, and both ends of the explosion-proof sheet are set with a conical convex, and a protruding hole plate is connected under the anti explosion piece. By setting a pressure relief hole on the cap, the flameproof cap will crack at the pressure relief hole in the case of a battery accident, and can quickly and reliably release and discharge the pressure, ensure that the accident danger will stop immediately and improve the safety of the utility model.
【技术实现步骤摘要】
一种锂电池的防爆外壳
本技术涉及锂电池领域,具体为一种锂电池的防爆外壳。
技术介绍
“锂电池”是一类由锂金属或锂合金为负极材料、使用非水电解质溶液的电池。目前,锂电池通常是通过多串并组合使用,如此,电池的总能量较大,在充电过程中存在单支电池过充或整个电池组过充的隐患,而当锂电池过充时,电池电压随极化增大而迅速上升,使电池温度和内压急剧增加,存在爆炸、燃烧等隐患。锂电池的安全性引起人们的广泛关注。在动力锂电池设计中,为了降低电池欧姆电阻,确保在大电流下连接件不发热,必须保证盖帽上的防爆半球面铝膜与下底板的焊接点有够的面积,这样就不利于过充电时尽早断开起到安全保护作用。因此在制备组合盖帽时必须选择合适的焊接点面积,既起到安全保护作用,又具有足够的面积满足动力电池大电流通过的需要。如果电池内部温度已达到热失控状态时,电池内压继续上升,电池盖帽防爆膜将被冲破,电池内物质随高压气体喷出,现有的防爆盖帽还存在易漏液的问题。
技术实现思路
本技术的目的在于提供一种锂电池的防爆外壳,以解决上述
技术介绍
中提出的问题。为实现上述目的,本技术提供如下技术方案:一种锂电池的防爆外壳,包括防爆壳架、防爆片、锂电池槽和防爆盖帽,防爆片两端对称设置有卡合部,卡合部内设置有卡槽,防爆片与防爆盖帽之间通过卡槽紧密相连,卡合部下方开设有环形凹槽,环形凹槽上紧密连接有胶体,胶体一侧连接有绝缘圈,绝缘圈下方设置有密封圈,防爆片和防爆盖帽内端面均附着有防爆层,防爆片和防爆盖帽之间设置有锂电池槽,防爆片两端均设置有锥形凸起,防爆片下方连接有凸起孔板,防爆盖帽上等距设置有泄压孔。优选地,凸起孔板上设置有若干个 ...
【技术保护点】
1.一种锂电池的防爆外壳,包括防爆壳架(1)、防爆片(3)、锂电池槽(8)和防爆盖帽(9),其特征在于,防爆片(3)两端对称设置有卡合部(7),卡合部(7)内设置有卡槽(12),防爆片(3)与防爆盖帽(9)之间通过卡槽(12)紧密相连,卡合部(7)下方开设有环形凹槽(10),环形凹槽(10)上紧密连接有胶体(6),胶体(6)一侧连接有绝缘圈(2),绝缘圈(2)下方设置有密封圈(5),防爆片(3)和防爆盖帽(9)内端面均附着有防爆层(13),防爆片(3)和防爆盖帽(9)之间设置有锂电池槽(8),防爆片(3)两端均设置有锥形凸起(11),防爆片(3)下方连接有凸起孔板(4),防爆盖帽(9)上等距设置有泄压孔(14)。
【技术特征摘要】
1.一种锂电池的防爆外壳,包括防爆壳架(1)、防爆片(3)、锂电池槽(8)和防爆盖帽(9),其特征在于,防爆片(3)两端对称设置有卡合部(7),卡合部(7)内设置有卡槽(12),防爆片(3)与防爆盖帽(9)之间通过卡槽(12)紧密相连,卡合部(7)下方开设有环形凹槽(10),环形凹槽(10)上紧密连接有胶体(6),胶体(6)一侧连接有绝缘圈(2),绝缘圈(2)下方设置有密封圈(5),防爆片(3)和防爆盖帽(9)内端面均附着有防爆层(13),防爆片(3)和防爆盖帽(9)之间设置有锂电池槽(8),防爆片(3)两端均设置有锥形凸起(11),防爆...
【专利技术属性】
技术研发人员:宋萍,
申请(专利权)人:北京电小二网络科技有限公司,
类型:新型
国别省市:北京,11
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