Automatic tester for multi-string lithium battery control panel

Abstract

The invention discloses an automatic tester for a multi-string lithium battery control panel, which comprises an MCU (micro control unit) control module, a signal amplification circuit, a constant direct-current load, an AC / DC (alternating-current / direct-current) conversion circuit, a DC / DC (direct-current / direct-current) conversion circuit, a D / A (digital / analog) conversion circuit and a plurality of logic latches. The control of the voltage of each channel in the multi-string lithium battery control panel can be realized via the logic latches. The MCU control module is combined in testing of overcharge, over-discharge, loading, overcurrent, short circuiting and current leakage, the degree of automation is high, the testing speed is high, and the operation is simple; a control key group and a memory chip are configured, and the parameter setting and maintenance can be facilitated; the scope of application is wide, and the automatic tester is suitable for lithium battery control panels with 4-18 strings; and causes of failure are displayed on an LCD (liquid crystal display) display module, and failure analysis can be facilitated.

Description

technical field [0001] The invention relates to testing equipment for lithium battery control boards, in particular to an automatic testing device for multi-string lithium battery control boards. Background technique [0002] Multi-string lithium battery control boards are used in electric vehicles, UPS power supplies, power tools, solar cells and other occasions. At present, there is no special test device on the market. The existing lithium battery control board test devices are all single lithium battery control board testers. , it can test a single lithium battery control board or a multi-series lithium battery control board as a whole. SUMMARY OF THE INVENTION [0003] In order to overcome the above-mentioned defects, the present invention provides an automatic tester for a multi-series lithium battery control board, which is used for precise testing of the multi-series lithium battery control boards. [0004] The technical scheme adopted by the present invention in ...

AI Technical Summary

Problems solved by technology

[0002] Multi-string lithium battery control boards are used in various occasions such as electric vehicles, UPS power supplies, power tools, solar cells, etc. At present, there is no special test device on the market. The existing lithium battery control board test devices are all single lithium battery control board testers. , can test a single lithium battery control board or test multiple strings of lithium battery control boards as a whole, but cannot precisely test and analyze the lithium battery conditions of each string of multiple strings of lithium battery control boards

Images