Battery module testing method, device and equipment

Abstract

The embodiment of the invention provides a battery module test method, device and equipment, and belongs to the technical field of battery module test, the device comprises a master control module anda slave control module; the slave control module comprises a sampling circuit, an equalization circuit, a control unit and a master test circuit; the main control module meets the working condition test requirement of the target battery pack and generates a main test circuit charging and discharging instruction; the sampling circuit collects battery parameters of the target battery pack; the maincontrol module is also used for carrying out logical operation on the battery parameters to generate an equalization instruction; the control unit is used for controlling the on-off of the equalization circuit according to the equalization instruction, so that the battery in the target battery pack is charged or discharged; and the controller is also used for controlling on-off of the main test circuit according to the main test circuit charging and discharging instruction so as to charge or discharge the target battery pack. By arranging the equalization circuit and the main test circuit, the test of the working condition of the battery module can be realized, and meanwhile, the voltage equalization can also be realized.

Description

technical field [0001] The invention belongs to the technical field of battery module testing, and in particular relates to a battery module testing method, device and equipment. Background technique [0002] In the battery industry, in order to increase the voltage of the battery pack, a battery pack is configured by connecting a plurality of rechargeable battery cells in series to realize a high-voltage battery. [0003] In order to ensure the quality of the battery pack, the battery pack is usually tested with a battery module testing device before the battery pack leaves the factory. The battery module test device tests the battery cell by contacting the positive and negative poles of the battery cell, and charges and discharges the battery cell many times. [0004] However, in the process of charging and discharging the battery pack, the battery module testing device in the prior art may cause unbalanced battery terminal voltage due to individual differences in batteri...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of charging and discharging the battery pack, the battery module testing device in the prior art may cause unbalanced battery terminal voltage due to individual differences in batteries, temperature differences, etc., and cannot guarantee the balanced use of the battery pack. Unbalance tends to worsen, battery life shortens, risk of accidents

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