Power battery cover plate and power battery using the cover plate
A power battery and cover plate technology, which is applied to small-sized batteries/battery packs, battery pack parts, battery boxes/coats, etc., can solve the problems of complex structure and process of cover plates, achieve fast and easy assembly process, and improve assembly The effect of speed, overall design and production cost is low
Active Publication Date: 2017-11-21
CHINA AVIATION LITHIUM BATTERY LUOYANG
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Problems solved by technology
[0004] The invention provides a power battery cover plate to solve the technical problem in the prior art that the pole unit is lifted by means of riveting, bolt connection, and circlip connection, which lead to complex overall structure and process of the cover plate; at the same time, the invention also provides A power battery using the above-mentioned cover plate
Method used
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[0027] Such as Figure 1 to Figure 5 As shown, an embodiment of a power battery cover plate, the cover plate in this embodiment includes a cover plate base body 1, and the cover plate base body 1 is correspondingly provided with two pole column units, and on the cover plate base body 1 between the two pole column units An explosion-proof membrane type safety valve 9 is also arranged between them, and the structures of the two pole units 3 are basically the same. The pole body 32 on the pole base 31, the pole body 32 has a piercing section passing through the pole hole extending up and down on the cover plate substrate 1, and the outer peripheral surface of the piercing section of the pole body 32 is provided with There is a stop groove 33 extending circumferentially around the pole body, and the outer section of the pole body 32 is covered with a lifting member 2 that is matched with the upper side of the cover base 1. The lifting member 2 has a In the inner hole correspondin...
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The invention provides a power battery cover plate and a power battery using the cover plate. The power battery cover plate includes a cover plate base body provided with a pole unit, and the pole unit includes a sealing barrier on the lower side of the cover plate base body through a central sealing ring. The pole base and the pole body arranged on the pole base, the pole body has a piercing section passing through the pole hole extending in the up and down direction on the base body of the cover plate, and the outer peripheral surface of the piercing section is provided with The retaining groove extending or distributed around the pole body in the circumferential direction, the outer casing of the piercing section is equipped with a lifting piece that cooperates with the upper side of the cover plate base body, and the lifting piece is provided with a pole extending radially along the pole body. The elastic barbs of the pole unit are lifted upwards by being folded upwards and inserted into the blocking groove. The assembly process is quick and easy, the manufacturing process of the lifting parts adopted is simple, and the overall design and manufacturing cost is low.
Description
technical field [0001] The invention relates to a power battery cover plate and a power battery using the cover plate. Background technique [0002] The technology of pure electric vehicles is becoming more and more mature, and the technology of hybrid electric vehicles is becoming more and more perfect. The power battery is the main energy carrier and power source of various electric vehicles, and it is also the main component of the whole electric vehicle. [0003] The existing power battery cover usually consists of a cover base, a safety valve structure, and positive and negative pole units. The pole hole is used to realize the conductive connection with the outside world, and a sealing ring is arranged in the pole body and the pole hole to realize the sealing of the pole body, such as a lithium battery disclosed in the Chinese utility model patent with the authorized announcement number CN201523031U Combined cover plate, the cover plate includes a cover plate base body...
Claims
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IPC IPC(8): H01M2/04H01M2/30H01M50/147H01M50/166H01M50/543
CPCH01M50/148H01M50/543Y02E60/10
Inventor 张勇杰李亚玲仝俊利雷利亮李洪涛殷久山
Owner CHINA AVIATION LITHIUM BATTERY LUOYANG