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Controller of motor compressor

A technology of electric compressors and controllers, applied in the direction of AC motor control, control systems, electrical components, etc., can solve the problems of main control chip interference, etc., and achieve the effect of improving reliability and electromagnetic immunity

Inactive Publication Date: 2016-12-21
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] An embodiment of the present invention provides a controller for an electric compressor to solve the interference problem of the main control chip in the prior art

Method used

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  • Controller of motor compressor
  • Controller of motor compressor

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0019] figure 1 It is a structural schematic diagram of a controller of an electric compressor according to an embodiment of the present invention, such as figure 1 As shown, the controller includes: a weak current area, a strong current area and an isolated optocoupler; among them, the weak current area and the strong current area are connected by an isolated optocoupler; the weak current area is powered by a low-voltage power supply, the strong current area is powered by a high-voltage power supply, and the weak current area It does not share the same ground with the strong current area, and realizes complete isolation between the strong current area and the weak current area.

[0020] figure 2 is a detailed structural schematic diagram of a controller of an electric compressor ac...

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Abstract

The invention discloses a controller of an electric compressor. Among them, it includes: a weak electric area, a strong electric area, and an isolated optocoupler; wherein, the weak electric area and the strong electric area are connected through the isolated optocoupler; the weak electric area is powered by a low-voltage power supply, and the strong electric area is powered by A high-voltage power supply supplies power, and the weak current area and the strong electric area do not share the same ground. Applying the technical scheme of the present invention can realize the complete isolation of strong current and weak current of the electric compressor controller without mutual influence, improve the reliability of the product, improve the electromagnetic immunity of the product, and the main control chip will not be affected by the electromagnetic interference of the motor. interference.

Description

technical field [0001] The invention relates to the technical field of controllers, in particular to a controller of an electric compressor. Background technique [0002] With the support of national policies, electric vehicles are developing rapidly, and major car manufacturers are also vigorously developing electric vehicles. At present, the development prospects are good. In order to pursue the comfort requirements of automobiles, electric compressors, as accessories for electric vehicles, will also have a great impact. development of. [0003] Existing electric compressor controllers are usually powered by two power supplies, a high-voltage power supply and a low-voltage power supply, and the two power supplies are mutually isolated. [0004] There are currently two main types of controllers: [0005] The first is to use the step-down circuit to step down the high-voltage power supply to supply power to the driver and the main control chip, and the high-voltage is conv...

Claims

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Application Information

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IPC IPC(8): H02P25/16
CPCH02P25/16
Inventor 郭伟林刘敏通乔一伦秦辉
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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