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Compressor insulation resistance monitoring circuit and compressor control method

A technology for monitoring circuits and insulation resistance, applied in the field of monitoring, can solve problems such as high current, threats to vehicle safety and reliability, high voltage, etc., and achieve the effect of improving safety and reliability

Pending Publication Date: 2021-06-22
HANGZHOU SANHUA RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Vehicle-mounted compressors have the characteristics of high voltage, high current, and high power. If the compressor leaks electricity, it will pose a threat to the safety and reliability of the vehicle.

Method used

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  • Compressor insulation resistance monitoring circuit and compressor control method
  • Compressor insulation resistance monitoring circuit and compressor control method
  • Compressor insulation resistance monitoring circuit and compressor control method

Examples

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Embodiment Construction

[0021] Specific embodiments will now be described in detail with reference to the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, those skilled in the art should understand that the specific components, devices, orientations and features illustrated in the drawings and described herein are exemplary only and should not be viewed as limiting.

[0022] figure 1 A compressor insulation resistance monitoring circuit 10 is illustrated, and the compressor insulation resistance monitoring circuit 10 includes a basic part 20 , a single-chip microcomputer 30 , and an isolated operational amplifier part 40 . Both the basic part 20 and the single-chip microcomputer 30 are connected to the isolated operational amplifier part 40 , and the basic part 20 is not electrically connected to the single-chip microcomputer 30 .

[0023] The basic part includes a fi...

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Abstract

A compressor insulation resistance monitoring circuit comprises a basic part and a single-chip microcomputer, the monitoring circuit further comprises an isolation operational amplifier part, wherein the basic part and the single-chip microcomputer are both connected with the isolation operational amplifier part, the basic part is not electrically connected with the single-chip microcomputer, the basic part comprises a first module and a second module, and the first module is electrically connected with the single-chip microcomputer. Two ends of the first module are respectively connected with the first port and the second port, two ends of the second module are respectively connected with the third port and the second port, the first module is provided with a first voltage measuring resistor, and the second module is provided with a second voltage measuring resistor. The isolation operational amplifier part comprises a first isolation operational amplifier and a second isolation operational amplifier, two pins of the first isolation operational amplifier are connected to two ends of the first voltage measuring resistor, and two pins of the second isolation operational amplifier are connected to two ends of the second voltage measuring resistor. The monitoring circuit can effectively monitor the insulation performance of the compressor.

Description

technical field [0001] The invention relates to the technical field of monitoring, in particular to a compressor insulation resistance monitoring circuit and a compressor control method. Background technique [0002] With the development and technological development of new energy vehicles, the thermal management of new energy battery packs will directly affect the performance of the vehicle. As the heart of the thermal management system, the compressor is of great significance to the stability of the thermal management system. [0003] The on-board compressor has the characteristics of high voltage, high current, and high power. If the compressor leaks electricity, it will pose a threat to the safety and reliability of the vehicle. Contents of the invention [0004] In order to monitor the insulation of the compressor, the technical solution of the invention provides a compressor insulation resistance monitoring circuit. [0005] A compressor insulation resistance monit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02
CPCG01R27/025
Inventor 不公告发明人
Owner HANGZHOU SANHUA RES INST CO LTD
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