Optimized anti-vibration busbar

Abstract

The invention discloses a busbar structure used for power battery modules, wherein the busbar structure has the optimized design by completely considering the practicality, the durability, the reliability and the safety into the practical application scenarios. According to the present invention, the busbar is a connection member, wherein monomer electric cores are connected, and voltage is fed back to a battery management system through the connection to a conduction wire or PCB so as to be controlled; and with the optimized design, the advantages of the traditional busbar in electric core connection and current conduction are provided, and the mechanical damage on the voltage detection terminal due to the vibration during the long-term use is eliminated by using the soft connection of the conduction wire.

Description

technical field [0001] The invention relates to the field of development and application of a power battery module, in particular to a power battery system used in an environment with severe and frequent vibrations. Background technique [0002] With the widespread use of power batteries in various electric vehicles, the safety design of the connectors of each part of the power battery system has been paid more and more attention. Among them, the power battery module, as the basic modular unit in the power battery system, carries the basic safety design mission. At present, the application range of electric vehicles is more and more extensive, including passenger cars, passenger cars, engineering vehicles, trucks, etc., which makes the use environment of power batteries more complex, and the safety and reliability requirements that need to be met are also more complex. come higher. In addition, with the development of power battery cell technology, its service time is also...

AI Technical Summary

Problems solved by technology

However, its second function, the narrow width of the voltage detection terminal part, faces the following problems in actual use: the mechanical strength of the aluminum material is not high, the vibration that occurs during the long-term operation of the car, and the vibration that occurs when the number of cycles of the battery cell increases Expansion will cause damage to the strength of the connection part, and may cause it to break in severe cases, resulting in voltage reading errors or even arcing, which will have a great impact on safe use

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