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Battery test equipment output port overvoltage protection circuit

A technology of overvoltage protection circuit and output port, which is applied in the direction of emergency protection circuit device, protection that responds to overvoltage, circuit device, etc., and can solve problems such as battery or equipment damage, serious fire, etc.

Active Publication Date: 2022-07-01
武汉市蓝电电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when using battery testing equipment, the user may connect a battery with a voltage higher than the range to the output port, or charge the battery higher than the voltage range. If these two situations occur, it may cause damage to the battery or the device, or even In the event of serious fire and other dangerous accidents, general battery test equipment should be equipped with output port overvoltage protection function

Method used

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  • Battery test equipment output port overvoltage protection circuit
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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0017] like figure 1 As shown in the figure, the present invention provides an output port overvoltage protection circuit of a battery test equipment, which is used to avoid the problem of circuit and battery damage or even safety accidents caused by overvoltage at the output port. 3. The battery 4, the host computer 5, the drive circuit 6, the overvoltage detection circuit 7 and the logic circuit 8 are composed.

[0018] In this embodiment, the power conversion circuit 1 provides power supply for the battery, for example, the external battery 4 can be charged and discharged with constant current, constant voltage, constant current and voltage, and constant power. The shutdown and the above-mentioned charging and dischargi...

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PUM

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Abstract

The invention provides an output port overvoltage protection circuit of battery testing equipment, which includes a power conversion circuit, a relay, an output port, a battery, a detection circuit, a logic circuit, a host computer and a drive circuit; the control input end of the power conversion circuit is connected to the host computer. The power output end of the power conversion circuit is electrically connected to the output port through the switch of the relay, and the output port is electrically connected to the battery; the coil of the relay is electrically connected to the output end of the drive circuit, and the input end of the overvoltage detection circuit is electrically connected to The output port is electrically connected, the output end of the overvoltage detection circuit is electrically connected with the input end of the logic circuit, and the output end of the logic circuit is electrically connected with the upper computer and the input end of the driving circuit respectively. The invention ensures the safety and reliability of real-time alarm and protection after the output port of the device is over-voltage.

Description

technical field [0001] The invention relates to the technical field of battery testing, in particular to an output port overvoltage protection circuit of battery testing equipment. Background technique [0002] As an energy storage device that can store energy, batteries have been widely used in various fields such as aerospace, transportation, mobile communications, photovoltaic energy storage, etc. Therefore, battery management or testing equipment has also been used in related applications. [0003] However, when using a battery test device, the user may connect a battery with a voltage higher than the range to the output port, or charge the battery higher than the voltage range. If these two situations occur, it may cause damage to the battery or the device, or even In the event of a serious fire or other dangerous accident, the general battery test equipment should be equipped with an output port overvoltage protection function. SUMMARY OF THE INVENTION [0004] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/20H02H3/04G01R19/165
CPCH02H3/20H02H3/04G01R19/16576
Inventor 张威亚
Owner 武汉市蓝电电子股份有限公司
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