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Air conditioner compressor protection and control method and device

An air-conditioning compressor, protection and control technology, applied in the field of compressor control, can solve problems such as the inability to protect the air-conditioning compressor over-current, achieve a good over-current protection effect, and solve the effect of over-current protection

Active Publication Date: 2014-08-27
HANDAN MIDEA REFRIGERATION EQUIP +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an air-conditioning compressor protection control method, which aims to solve the problem in the prior art that the air-conditioning compressor cannot be over-currently protected when the intelligent power module is damaged

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  • Air conditioner compressor protection and control method and device
  • Air conditioner compressor protection and control method and device
  • Air conditioner compressor protection and control method and device

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] image 3 The implementation process of the air conditioner compressor protection control method provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0023] In step S1, it is judged that figure 1 Whether the protection signal input terminal CIN of the intelligent power module 400 receives the overcurrent detection signal S CIN , if yes, execute step S2; if no, return to execute step S1.

[0024] In step S2, it is judged that figure 1 W...

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Abstract

The invention belongs to the technical field of compressor control, and provides an air conditioner compressor protection and control method and device. According to the method, when an over-current detection signal is received at a protection signal input end of an intelligent power module, whether a fault signal is output at a fault signal output end of the intelligent power module in a preset period of time or not is judged; if yes, a power source protection switch module is controlled to output power supply currents in a direct power supplying mode; otherwise, it shows that the intelligent power module is damaged, and therefore the power source protection switch module needs to be controlled to reduce the power supply currents in a current-limiting mode to a preset safety current range. Thus, on the condition that the intelligent power module is damaged, the abnormal over-current phenomenon is prevented from occurring in driving currents of an air conditioner compressor by reducing the power supply currents, a good over-current protection effect is achieved on the air conditioner compressor and the problem that in the prior art, when an intelligent power module is damaged, over-current protection of an air conditioner compressor cannot be realized is solved.

Description

technical field [0001] The invention belongs to the technical field of compressor control, in particular to an air conditioner compressor protection control method and device. Background technique [0002] At present, for the control of air-conditioning compressors, such as figure 1 As shown, when the outdoor unit of the air conditioner is powered on, the system power supply 100 processes the output alternating current AC and outputs it to the power protection switch module 200, and the main controller 300 first controls the power protection switch module 200 to limit the current (ie The power protection switch module 200 performs current limiting processing on the output current) to supply power to the intelligent power module 400 (IPM, Intelligent Power Module) and to charge the starting capacitor of the compressor installed in the outdoor unit of the air conditioner, and after a period of time, the main control The controller 300 controls the power protection switch modu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/02
Inventor 鲍殿生陈建昌
Owner HANDAN MIDEA REFRIGERATION EQUIP
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