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Fault detection circuit for air conditioner compressor

A fault detection circuit and a technology for an air conditioner compressor, applied in the field of power electronics, can solve the problems of inability to accurately and quickly judge the compressor and spend a lot of time, and achieve the effect of improving the fault detection speed and saving the time for replacing parts.

Inactive Publication Date: 2020-09-25
SHENZHEN MCQUAY AIR CONDITIONING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the air conditioner unit reports a fault related to the compressor and the drive, it is impossible to accurately and quickly determine whether it is a problem with the compressor or the drive
[0003] In the existing technology, it is necessary to use various troubleshooting methods to confirm the problem. This kind of method requires maintenance personnel to disassemble the machine and test multiple fault points one by one. It takes a lot of time to confirm the fault.

Method used

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  • Fault detection circuit for air conditioner compressor
  • Fault detection circuit for air conditioner compressor
  • Fault detection circuit for air conditioner compressor

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The embodiment of the present invention discloses an air conditioner compressor failure detection circuit, including: a compressor driver 4, see figure 1 and figure 2 As shown, the detection circuit connected to the three-phase output terminal of the compressor driver 4;

[0026] The detection circuit includes a first light emitting circuit 1, a second light emitting circuit 2 and a third light emitting circuit 3, the first ends of the first light emi...

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Abstract

The invention discloses a fault detection circuit for an air conditioner compressor. The fault detection circuit comprises a compressor driver and a detection circuit connected with a three-phase output terminal of the compressor driver; and the detection circuit comprises a first light-emitting circuit, a second light-emitting circuit and a third light-emitting circuit, the first ends of the first light-emitting circuit, the second light-emitting circuit and the third light-emitting circuit are correspondingly connected with one corresponding phase of the three-phase output terminal, and thesecond ends of the first light-emitting circuit, the second light-emitting circuit and the third light-emitting circuit are mutually connected. According to the fault detection circuit for the air conditioner compressor, the three-phase voltage phase sequence of the compressor driver is utilized, the three-phase output end is externally connected with the detection circuit, maintenance personnel can visually and rapidly confirm whether the compressor driver breaks down or not according to the light-emitting conditions of the three light-emitting circuits of the detection circuit, the fault detection speed of the air conditioning unit for the compressor and the driver is increased, problems do not need to be confirmed by replacing parts, the part replacing time is saved, and the detection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to an air conditioner compressor fault detection circuit. Background technique [0002] When the air-conditioning unit reports a fault related to the compressor and the drive, it is impossible to accurately and quickly determine whether it is a problem with the compressor or the drive. [0003] In the prior art, it is necessary to use various troubleshooting methods to confirm the problem. Such methods require maintenance personnel to dismantle the machine for inspection and test multiple fault points one by one, and it takes a lot of time to confirm the fault. [0004] When the unit has an abnormal alarm related to the driver, and it cannot be confirmed that it is a problem with the compressor or the driver, connect the detection box to the output terminal of the driver. After starting up, the output signal of the detection box can immediately determine whether the driver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/38F24F11/88
CPCF24F11/38F24F11/88
Inventor 邓炎璇吴喜兆周威
Owner SHENZHEN MCQUAY AIR CONDITIONING
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