Busbar electrical isolation assembly and battery

Abstract

The invention discloses a busbar electrical isolation assembly, which comprises a first plate and a second plate, wherein the first plate and the second plate are made of insulating materials, the second plate is fixedly arranged on the first plate, the second plate is perpendicular to the first plate, the second plate is located between two adjacent busbars, and the first plate is located on thesides, which are close to a battery cell, of the busbars. The second plate is arranged on the first plate corresponding to a gap between the two adjacent busbars, and is located between the two adjacent busbars, so that the second plate can play a role in electrically isolating the two adjacent busbars. The busbar electrical isolation assembly is only composed of two insulating plates, and the occupied space of the assembly is relatively small; and in the installation process, only the first plate needs to be inserted between the busbar and the battery cell, and the second plate is located between the two adjacent busbars, so that the installation process is relatively simple and convenient.

Description

technical field [0001] The invention relates to the technical field of electrical isolation of battery bus bars, in particular to an electrical isolation assembly of bus bars. Background technique [0002] A battery module is composed of several to hundreds of batteries connected in parallel and in series. In addition to the mechanical design part, a battery management system and a thermal management system can be added to form a relatively complete lithium battery pack. system. [0003] Wherein, the battery cells are connected through a bus bar to realize parallel connection or series connection between the battery cells. As the volume of the battery module becomes smaller and smaller, for the cells inside the battery module, the gap between them will become smaller, so that part of the bus used for the connection between the cells needs to be isolated The components are electrically isolated to avoid short circuits inside the battery module. The methods often used in th...

AI Technical Summary

Problems solved by technology

However, there are some problems in the above method: 1. Fixing by setting the fixing bracket requires a lot of material consumption, and the fixing bracket occupies a certain space in the battery module, which is not conducive to the energy density of the battery module and has poor versatility; 2. The use of insulating glue or insulating tape will increase the workload and reduce the production efficiency, and the insulating glue or insulating tape will be easily melted due to heating and other reasons during the working process of the busbar, so that the insulating glue or insulating tape will remain on the surface of the busbar Cause performance impact on busbars, or weaken the insulating effect of insulating glue or insulating tape

Images