A battery cover and a battery and vehicle using the same
A battery cover and cover technology, applied in the direction of battery cover/end cover, battery pack components, battery box/jacket, etc., can solve problems such as short circuit of positive and negative poles, affecting normal use of battery, and short circuit of battery
Active Publication Date: 2021-04-30
CALB CO LTD +1
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Problems solved by technology
However, the reduction of the overturn pressure value will also bring the following problems: After the overturn pressure value is reduced, the pressure inside the battery may be damaged during normal use, especially when the battery is used for a long time or in a high temperature environment, or when the internal pressure of the battery fluctuates. It will reach the turning pressure value, which will drive the turning plate to turn over when the battery is charged and discharged normally, causing the positive and negative poles to be short-circuited, causing the battery to be short-circuited and affecting the normal use of the battery
Method used
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Embodiment Construction
[0033] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0034] The specific embodiment of battery cover plate of the present invention, as Figure 1 to Figure 2As shown, the battery cover includes a cover body 1 used for sealing the cover to be installed on the battery case. The material of the cover body 1 is conductive material, and the cover body 1 is insulated and equipped with a positive pole 2 and a negative pole 3. An insulating sleeve is arranged between the column 2 , the negative pole column 3 and the cover plate body 1 . A positive pole conductive block 4 is conductively sleeved on the part of the positive pole 2 outside the cover body 1 , and a negative pole conductive block 5 is conductively sleeved on the part of the negative pole 3 outside the cover body 1 . A conductive spacer 6 is pressed between the conductive block 4 of the positive pole and the cover body 1 , and an insulating spacer 7 is...
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The invention relates to a battery cover plate and a battery and a vehicle using the battery cover plate, so as to reduce the trigger pressure of an air pressure sensitive protection structure without affecting the normal use of the battery. The battery cover includes a cover body, which is provided with positive and negative poles, and the cover body is provided with an air pressure sensitive type that is triggered to disconnect the charging and discharging circuit when the pressure inside the battery case reaches the first set value. As a protective structure, the cover body is also provided with a pressure relief valve that releases pressure to the outside of the battery when the pressure inside the battery case reaches a second set value that is less than the first set value, so that the battery case will The internal pressure is maintained below the first set value. By adding a pressure relief valve on the cover body, it can be ensured that when the battery is working normally, the pressure in the battery case will not reach the first set value, and the air pressure sensitive protection structure will not be triggered to disconnect the charging and discharging circuit, ensuring The pressure-sensitive protective structure will not affect the normal use of the battery.
Description
technical field [0001] The invention relates to a battery cover plate and a battery and a vehicle using the battery cover plate. Background technique [0002] The pure electric vehicle technology is becoming more and more mature, and the hybrid electric vehicle technology 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. With the extensive use of power batteries, battery safety issues have become more prominent. [0003] A utility model patent with the authorized announcement number CN202839829U discloses a safety device for a lithium-ion battery. The pole is electrically connected to the top cover, and the second pole is insulated from the top cover. A conductive sheet is arranged on the second pole, and a flipping sheet is also conductively installed on the top cover. The flipping sheet is located below the conductive sheet. The tu...
Claims
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IPC IPC(8): H01M50/30H01M50/147
CPCH01M50/147H01M50/30Y02E60/10
Inventor 张勇杰潘芳芳杨高强李国伟
Owner CALB CO LTD