An air conditioner compressor protection control method and device

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

Active Publication Date: 2017-03-08
HANDAN MIDEA REFRIGERATION EQUIP +1
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  • Abstract
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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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  • An air conditioner compressor protection control method and device
  • An air conditioner compressor protection control method and device
  • An air conditioner compressor protection control method and device

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Embodiment Construction

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0022] image 3 The implementation process of the air-conditioning compressor protection control method provided by the embodiment of the present invention is shown. For ease of description, only the parts related to the embodiment of the present invention are shown, which are detailed as follows:

[0023] In step S1, it is determined figure 1 Whether the protection signal input terminal CIN of the smart power module 400 in the middle receives the overcurrent detection signal S CIN If yes, go to step S2, if no, go back to step S1.

[0024] In step S2, it is determined figure 1 Whether the fault ...

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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, and in particular relates to a protection control method and device for an air conditioner compressor. 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, the system power supply 100 processes the output AC and then outputs it to the power protection switch module 200. The main controller 300 first controls the power protection switch module 200 in a current limiting mode (ie The power protection switch module 200 performs current limiting processing on the output current) provides power to the intelligent power module 400 (IPM, Intelligent Power Module) and charges the compressor starting capacitor installed in the outdoor unit of the air conditioner. After a period of time, the main controller 300 controls the power supply protection switch module 200 to switch to the...

Claims

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Application Information

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