High-voltage detection circuit and detection method thereof

A high-voltage detection and circuit technology, applied in the power field, can solve the problems of increasing the safety risk of high-voltage circuits and taking a long time to detect faults.

Active Publication Date: 2019-05-21
CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increased insulation resistance and capacitance in new energy vehicles, etc., when disconnecting the loop of the high-voltage circuit or turning on the loop of the high-voltage circuit, it takes a long time to achieve accurate fault detection of the high-voltage circuit, increasing The safety risk of high-voltage circuits

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  • High-voltage detection circuit and detection method thereof
  • High-voltage detection circuit and detection method thereof
  • High-voltage detection circuit and detection method thereof

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Embodiment Construction

[0033] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. The present invention is by no means limited to any specific configurations and algorithms presented below, but covers any modification, substitution and improvement of elements, components and algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present invention.

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Abstract

The invention provides a high-voltage detection circuit and a detection method thereof and belongs to the field of electric power technologies. The high-voltage detection circuit includes a current adjustment module, a first detection module and a processing module; the current adjustment module can be turned on or turned off so as to adjust current in a high-voltage circuit; the first detection module is used for providing detection signals and transmitting the detection signals to the processing module; and the processing module is used for determining whether a positive pole switch unit ora negative pole switch unit malfunctions according to the desired working state of the positive pole switch unit, the desired operating state of the negative pole switch unit, and the detection signals, wherein the positive pole switch unit includes a main positive switch, or includes a main positive switch and a main positive pre-charging switch, and the negative pole switch unit includes a mainnegative switch, or includes a main negative switch and a main negative pre-charging switch. With the high-voltage detection circuit and the detection method thereof provided by the technical schemesof the invention adopted, the speed of the detection of the faults of the high-voltage circuit can be improved, and the safety risk of the high-voltage circuit can be lowered.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a high-voltage detection circuit and a detection method thereof. Background technique [0002] With the rapid development of new energy, new energy can provide power for more and more equipment, such as battery modules, battery packs, etc., can be used as power sources to provide power for new energy vehicles, new energy ships, new energy aircraft, etc. [0003] The safety of high-voltage circuits such as battery modules and battery packs that provide power is one of the important considerations for the safety of power battery systems. Due to the increased insulation resistance and capacitance in new energy vehicles, etc., when disconnecting the loop of the high-voltage circuit or turning on the loop of the high-voltage circuit, it takes a long time to achieve accurate fault detection of the high-voltage circuit, increasing The safety risk of high-voltage circ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/316
CPCB60L3/0046B60L3/0069B60L3/04G01R31/3648
Inventor 霍纪荣傅焱辉楚乐李前邓
Owner CONTEMPORARY AMPEREX RUNZHI SOFTWARE TECH LTD NINGDE CITY
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