Battery pack acquisition device, battery pack and semi-finished products of the acquisition device

Abstract

The invention relates to the technical field of battery structures, and particularly relates to a battery pack acquisition device, a battery pack and a semi-finished product of the acquisition device. The acquisition device comprises a battery management unit, a wire harness board, at least one bus connection terminal, and a temperature acquisition device fixed on the battery management unit, wherein the bus connection terminal is arranged on the wire harness board; the bus connection terminal comprises a body board and a voltage acquisition leading-out end; the at least one bus connection terminal also comprises a temperature acquisition leading-out end; the wire harness board is provided with a first through hole and a second through hole; the body board is used for being connected with a cathode mix post; the voltage acquisition leading-out end is fixedly connected with the body board; the voltage acquisition leading-out end passes through the first through hole and is fixed with the battery management unit; and the temperature acquisition leading-out end is fixed on the body board, passes through the second through hole and acts with the temperature acquisition device. The acquisition device of the invention has high acquisition precision.

Description

technical field [0001] The present application relates to the field of battery structure technology, and in particular to a collection device for a battery pack, a semi-finished product of the battery pack and the collection device. Background technique [0002] As environmental protection issues continue to receive more and more attention, using electric energy as an energy source has become a preferred energy supply method in all walks of life. The battery pack is a relatively common power device, and its structure will have a crucial impact on the normal operation of the device. [0003] In the traditional technology, in order to monitor the working state of the battery pack, a collection device needs to be installed in the battery pack. The collection device is used to collect parameters such as the voltage of the battery pack to determine whether the working state of the battery pack is normal. The acquisition device generally includes a wiring harness board, a bus con...

AI Technical Summary

Problems solved by technology

[0004] However, the above acquisition device needs to be connected to the battery management unit through a sampling line. Since the sampling line itself has a certain impedance, this impedance will have a negative impact on the signal transmission of the acquisition device, resulting in a relatively low acquisition accuracy of the acquisition device.

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