Data acquisition device and battery module

Abstract

The invention relates to the technical field of batteries, and particularly discloses a data acquisition device and a battery module. The data acquisition device is fixedly installed on a battery celland comprises a printed circuit board and at least two pins, the printed circuit board is provided with a plug connector and at least two circuits, each circuit comprises a first end and a second end, the first end of each circuit is electrically connected with the plug connector, and each pin comprises an elastic part and an acquisition part which are conductively connected. Each elastic part isconnected with the second end and the acquisition part, the acquisition part is used for abutting against a busbar of the battery cell, and the elastic parts have the trend of driving the printed circuit board to move away from the busbar. According to the data acquisition device, the occupied space can be reduced, the volume energy density of the battery module can be improved, wiring errors canbe avoided, the repair rate can be reduced, the mounting and dismounting efficiency of pins and busbars can be improved, the busbars can be prevented from being damaged, and the manufacturing cost ofthe battery module can be saved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a data acquisition device and a battery module. Background technique [0002] With the development of new energy vehicles and the maturity of power batteries, power batteries are developing towards higher energy density, smaller volume and higher power density, and the development of battery modules will become a development trend of subsequent power batteries; by The battery unit composed of battery modules is more and more widely used in electric vehicles as an energy storage device. In the current data acquisition scheme of the battery module, the detection points are generally arranged by setting the sampling harness on the bus bar for current collection, and then the detection points are welded or glued to the bus bar. The currently used battery pack voltage And the temperature sampling method has the following disadvantages: [0003] (1) The sampling wiring harness occu...

AI Technical Summary

Problems solved by technology

[0003] (1) The sampling wiring harness occupies a large space in the battery module, and the space utilization rate is low, which reduces the volumetric energy density of the battery module;

[0004] (2) The layout of the sampling wiring harness is relatively complicated, and it is easy to cross and connect to the wrong position, resulting in poor wiring and increasing the repair rate;

[0005] (3) The welding process of the sampling harness and the battery pack is complex and cumbersome, and the removal of the welding layer during repair is also easy to damage the busbar

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