Shakeproof rigid-flexible PCBs and battery module structure

Abstract

The invention discloses a battery module structure. The battery module structure comprises a plurality of battery units which are electrically connected through shakeproof rigid-flexible PCBs; each shakeproof rigid-flexible PCB comprises a PCB body, the PCB body comprises a plurality of metal boards and flexible PCBs which are connected in series alternately, and joint parts are formed at joints of the metal boards and the flexible PCBs; the battery module structure adopts the shakeproof rigid-flexible PCBs to replace the traditional wire harness structure, the flexible PCBs can acquire various signals on the battery units, the metal boards can serve as a carrier of over-current and high-pressure signals, and the rigid-flexible PCBs under protection cannot be damaged easily. A large quantity of wire harnesses can be saved with adoption of the shakeproof rigid-flexible PCBs, circuit structure is simplified, and shakeproof rigid-flexible PCBs have the advantages of being stable and not prone to damage.

Description

technical field [0001] The invention relates to the field of new energy power battery modules, in particular to a shockproof soft-rigid PCB board applied to large-scale series-parallel battery modules and a battery module structure using the shockproof soft-rigid PCB board. Background technique [0002] With the contradiction between people's general demand for cars and environmental protection, new energy vehicles have ushered in a period of rapid development. The current power source of new energy vehicles is mainly rechargeable batteries. Due to people's requirements for the mileage of new energy vehicles, most of the current new energy vehicles are equipped with high-power and energy battery modules. However, with the current technical level, It is still not possible to manufacture a single large-capacity battery, so the battery modules on the current new energy vehicles are all in the form of multiple batteries connected together by circuits. The various battery units ...

AI Technical Summary

Problems solved by technology

The current power source of new energy vehicles is mainly rechargeable batteries. Due to people's requirements for the mileage of new energy vehicles, most of the current new energy vehicles are equipped with high-power and energy battery modules. However, with the current technical level, It is still not possible to manufacture a single large-capacity battery, so the battery modules on the current new energy vehicles are all in the form of multiple batteries connected together by circuits

The various battery units in the traditional battery module are connected by wires. Since the control part of the new energy vehicle needs to collect various signals of the power battery for monitoring and control, this requires a large number of electrical connections, which not only increases the The cost and the existence of a large number of wiring harnesses make the battery module not simple enough and inconvenient to maintain. During the driving process of the car, the connection end of the wire is easy to fall off due to the impact of vibration, which increases the maintenance cost and reduces the user experience. hinder the development of new energy vehicles

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