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Overcurrent and short circuit tester for battery pack protective board

A protection board and tester technology, applied in the direction of instruments, measuring electronics, measuring devices, etc., can solve problems such as low degree of automation, low accuracy, and failure to meet production requirements, and achieve high degree of automation and high accuracy of measurement results Effect

Active Publication Date: 2013-04-17
HUIZHOU BLUEWAY ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This detection method has low accuracy and low degree of automation, which cannot meet the production requirements.

Method used

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  • Overcurrent and short circuit tester for battery pack protective board
  • Overcurrent and short circuit tester for battery pack protective board

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Experimental program
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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0018] The tester disclosed by the invention can simultaneously perform overcurrent protection test and short circuit protection test on the protection boards of multiple channels. The test items include over-current upper limit test, over-current lower limit test, over-current protection delay time test, and can test any number of protection boards with over-current protection values ​​in the range of 0-80A.

[0019] Such as figure 1 In this embodiment, the battery pack protection board overcurrent short circuit tester includes a main control circuit and an A / D conversion circuit connected to the main control circuit, a motor communication circuit, an electronic load communication circuit, a display / touch screen circuit, and a switch switching circuit.

[0020] Among them, the main control circuit is realized by ARM chip and embedded operating system. ...

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Abstract

The invention relates to an overcurrent and short circuit tester for a battery pack protective board. The tester comprises a main control circuit, and an analogue-to-digital (A / D) converting circuit, a motor communication circuit, an electronic load communication circuit, a display / touch screen circuit and a switch switching circuit which are connected with the main control circuit; a signal between the main control circuit and the switch switching circuit is transmitted by optical coupling isolation; an RS232 serial communication mode is adopted by the electronic load communication circuit; and the main control circuit controls an electronic load to finish current switching in a constant current mode through the electronic load communication circuit. Compared with the prior art, the tester has high automation degree, and can quickly finish detection of short circuit and overcurrent parameters of the battery pack protective board; and a measuring result has high accuracy.

Description

technical field [0001] The invention relates to the technical field of battery testing, in particular to an overcurrent and short circuit tester for a battery protection board. Background technique [0002] In order to ensure the safety and stability of the battery pack and protect the battery cells and loads, each battery pack is equipped with a protection board. When an overcurrent or short circuit occurs during use, the protection board can cut off the power supply circuit in time for protection. Therefore, the working performance and stability of the battery pack protection board itself is the basis for realizing its protection function. The battery pack manufacturer must strictly test the battery pack protection board. The existing method of testing the battery protection board is usually to use a constant current source to connect the battery protection board and the load, manually adjust the output current of the constant current source until it reaches the limit valu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/02G01R31/36
Inventor 郑庆芳
Owner HUIZHOU BLUEWAY ELECTRONICS