Integrated type power battery assembly

Abstract

The invention relates to an integrated type power battery assembly. The integrated type power battery assembly comprises at least one battery module set, a high voltage power distribution system, a battery management system and a fixing support, wherein the high voltage power distribution system and the battery management system are electrically connected with the battery module set. The fixing support comprises a bracket and a cover plate which is fixedly installed on the bracket. The bracket comprises a base plate, a front plate, a rear plate, a front connecting plate and a rear connecting plate, wherein the front plate and the rear plate are arranged on the front side and the rear side of the base plate, the front plate stretches outwards to form the front connecting plate, the rear plate stretches outwards to form the rear connecting plate, and the front connecting plate and the rear connecting plate of the bracket are fixedly installed on a vehicle body through installing bolts. A threaded rod sequentially perpendicularly penetrates through the base plate of the bracket, a plurality of battery modules and the cover plate, wherein the battery modules are longitudinally stacked and fixedly installed in a cavity formed by the bracket and the cover plate through a screw cap on the threaded rod. The high voltage power distribution system and the battery management system are fixedly installed on the fixing support respectively through the bolts. The integrated type power battery assembly is simple in structure and firm and has good shock resistance and stability, no external installing support needs to be arranged to be fixed on the vehicle body, and the light requirement is met.

Description

Technical field [0001] The invention relates to a power battery in an electric vehicle, in particular to an integrated power battery assembly. Background technique [0002] Power battery is a key component in electric vehicles, and its performance will directly affect the performance of the whole vehicle. As the main power source of electric vehicles, the design of the battery pack needs to consider many factors, not only to ensure that the performance of the battery pack meets the requirements of the entire vehicle, but also to ensure that the battery pack has sufficient safety and reliability. [0003] Power battery components generally include multiple battery modules, battery module fixing components, module connection copper bars, low-voltage sampling wiring harness, high-voltage power wiring harness, high-voltage power distribution system, and battery management system. When the car is moving, the battery modules and connecting parts of the power battery assembly should have...

AI Technical Summary

Problems solved by technology

In addition, the environment such as the region and season in which the car operates has great changes, and there are high requirements for the insulation and sealing of the battery pack casing and the conductivity of the internal connecting parts. External stress such as external extrusion and internal stress must also be considered. The internal stress caused by the difference in expansion rate, especially the damage of the connecting parts or the damage of the insulation system due to the vibration and friction between the parts will cause the battery pack to stop power supply or even short circuit to cause heat and fire. These safety issues are the key issues in the structural design of the battery pack.

[0004] The components in the battery assembly are relatively independently fixed in the battery frame, and the components are electrically connected by cables. The number of cables inside the battery assembly is large and the arrangement is miscellaneous, making installation inconvenient; in addition, during the vibration process of the vehicle, Different forces at both ends of the cable will affect the connection at the installation point and may cause the connection to become loose

And when the traditional battery assembly is connected and fixed with the car body, it is necessary to design and install the fixing bracket in addition

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