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Automatic test equipment for lithium battery circuit protective board

A technology of automatic test equipment and circuit protection board, which is applied in the direction of measuring resistance/reactance/impedance, measuring electricity, measuring devices, etc., which can solve the problems of fixed test parameters, high price, and inability to meet the actual test, and solve the problem of slow test speed , test the exact effect

Inactive Publication Date: 2011-04-27
TIANJIN ZHONGHUAN ELECTRONICS COMP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many lithium battery protection board test equipment on the market, but the price is expensive, and the test parameters are fixed, which cannot meet the needs of actual testing.

Method used

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  • Automatic test equipment for lithium battery circuit protective board
  • Automatic test equipment for lithium battery circuit protective board
  • Automatic test equipment for lithium battery circuit protective board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Using Agilent HP6624A programmable DC power supply A, HP6632A programmable DC power supply B, HP3488A multiplexer, HP34401 digital multimeter, self-made fixture and in the LabVIEW compilation environment, the software is designed.

[0014] Such as figure 1 , figure 2 As shown, according to the test item indicators given by the customer, the connection of the overall test system is constructed. In the LabVIEW compiling environment, this device realizes the connection between the computer and the instrument through the GPIB card, and controls the power supply to output the voltage required for the test; uses the multiplexer HP3488A to realize the on-off of each line and the connection between the test point and the digital multimeter 34401, and communication debugging , to realize the hardware configuration and all test functions of the whole system; to realize the measurement of basic voltage, current, time and other signals; to save the test results to the specified a...

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Abstract

The invention relates to automatic test equipment for a lithium battery circuit protective board. In the invention, a computer is unidirectionally connected with a programmable DC (direct current) power supply A, a programmable DC power supply B, a multiplexer and a load circuit respectively through a GPIB-USB (general purpose interface bus-universal serial bus) card; the programmable DC power supply A is respectively connected with the multiplexer and a fixture; the programmable DC power supply B is unidirectionally connected with the multiplexer and is unidirectionally connected with the fixture through the load circuit; the load circuit is unidirectionally connected with the multiplexer; and a multimeter is unidirectionally connected with the fixture and the interface data display of the computer respectively. The automatic test equipment is characterized by adopting full digital control through the computer, has the advantage of accurate and stable test, has an out-of-tolerance alarm function, and can measure different parameters of various protective boards and continuously test 32 yoke plates, thus fundamentally solving the defects of the traditional testing instrument such as slow test speed and large measurement errors.

Description

technical field [0001] The invention relates to an automatic test device for a circuit protection board, in particular to an automatic test device for a lithium battery circuit protection board. Background technique [0002] Due to the high volume density and energy density of lithium batteries, and a single battery voltage as high as 4.2V. In order to ensure the safety of use, the lithium battery must have a corresponding battery management circuit in the application to prevent the battery from overcharging, overdischarging and overcurrent. At present, there are many lithium battery protection board testing equipment on the market, but they are expensive and have fixed test parameters, which cannot meet the needs of actual testing. Contents of the invention [0003] In view of the above problems, the present invention provides an automatic test equipment for lithium battery circuit protection board, which adopts computer full digital control, testing, and relay switch co...

Claims

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Application Information

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IPC IPC(8): G01R31/36G01R27/02G01R31/02
Inventor 李丽谷丽秋历嘉琦丛凯
Owner TIANJIN ZHONGHUAN ELECTRONICS COMP
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