Wire harness isolation compound sheet, battery module and battery management system

Abstract

The invention discloses a wire harness isolation compound sheet, a battery module and a battery management system. The wire harness isolation compound sheet comprises an upper-layer membrane, a lower-layer membrane and a current collection component used for collecting voltage signals and temperature signals, wherein the current collection component is at least partially laminated between the upper-layer membrane and the lower-layer membrane and comprises a plurality of connection sheets which are arranged at intervals, a plurality of voltage collection wires and a plurality of temperature collection wires; a first avoiding part used for welding the connection sheets is arranged on the upper-layer membrane; a second avoiding part with shape matched with the shape of the connection sheets is arranged on the lower-layer membrane. According to the wire harness isolation compound sheet in the embodiment, the upper-layer membrane and the lower-layer membrane are used for replacing injectionmolding parts used as wire harness isolation plate main bodies in the prior art; the thickness of the wire harness isolation compound sheet is reduced; simplicity, lightness and thinness of the wireharness isolation compound sheet are improved.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a wire harness isolation composite sheet, a battery module and a battery management system. Background technique [0002] The power battery includes a battery box, a battery module, and a battery management system. The battery module is installed in the battery box, and the battery management system is connected to the battery module to monitor the temperature of the battery module and the battery status. Take the square case battery module as an example, such as figure 1 As shown, a common battery module includes several battery cells 110 , and the several battery cells 110 are stacked to form a battery cell array 150 according to the requirements of series and parallel connection. An end plate 120 and a side plate 130 are installed on the outer side of the cell array 150 by laser welding, so that the cell array 150 forms a cell group with a certain structural strength....

AI Technical Summary

Problems solved by technology

The wire harness isolation plate 140 described above has a relatively high thickness, complex structure, and heavy weight, resulting in a relatively high height of the battery module in the vertical direction, and the lightness of the battery module needs to be further improved.

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