On-vehicle energy storage device of electromobile

Abstract

The invention relates to an on-vehicle energy storage device of an electromobile, which comprises a battery box, a battery management system and a plurality of storage battery modules. The battery box comprises a battery box upper cover and a battery box lower box; the battery box upper cover is detachably arranged on the battery box lower box and forms seal with the battery box lower box; the battery management system and the storage battery modules are arranged in the battery box; a storage battery positive pole, a storage battery negative pole, a battery status parameter reading port, a management system maintenance port and a seal detecting port are arranged on the battery box; the storage battery positive pole is connected with the storage battery negative pole through the storage battery modules; the storage battery modules are in series or in parallel; the battery status parameter reading port and the management system maintenance port are respectively in electric connection with the battery management system; and the battery management system is respectively connected with the storage battery modules. The on-vehicle energy storage device of the electromobile disclosed by the invention has the characteristics of ingenious design, simple structure, stable performance and long service life, is dustproof, waterproof, safe and reliable and can be maintained conveniently, thereby being suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to the technical field of electric vehicle components, and specifically refers to a vehicle-mounted energy storage device for electric vehicles. Background technique [0002] With the rapid development of new energy electric vehicles, the whole vehicle puts forward higher requirements on the performance of on-board energy storage devices (referred to as battery packs), mainly in terms of safety and reliability, lifespan, and maintenance convenience. [0003] a. The safety and reliability of the energy storage device for electric vehicles is mainly manifested in that the battery box absorbs the collision energy through deformation, and the internal parts of the energy storage device cannot enter the member compartment, endangering the safety of customers; the internal and external links are firm and reliable, and the strength and rigidity of the box body meet Requirements, ...

AI Technical Summary

Problems solved by technology

[0006] a. Place the energy storage device in the trunk or spare tire position in the car. This installation method will cause damage to the battery when the rear of the vehicle is collided or squeezed, or even catch fire and explode, posing a serious safety hazard

[0007] b. Raise the floor of the car or adjust the suspension to place the battery pack under the chassis of the car. The development cost is high and the cycle is long, which affects the comfort of the occupants.

[0008] c. For the battery pack system described in Chinese utility model patent ZL20102018613.5, heat dissipation vents are added to the pack body. Although this solution solves the heat dissipation problem, it reduces the safety of the car in wading conditions

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