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Air conditioner state control method and device

A state control and operating state control technology, applied in the control input involving air characteristics, space heating and ventilation control input, refrigerators, etc., and can solve problems such as failure to start

Active Publication Date: 2021-01-26
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims to propose an air conditioner state control method to solve the problem in the prior art that when the user starts the compressor, the compressor fails to start due to excessive absorption of liquid refrigerant

Method used

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  • Air conditioner state control method and device
  • Air conditioner state control method and device

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no. 2 example

[0067] see Figure 5 , is a schematic diagram of the functional units of the air-conditioning state control device 1 provided by the preferred embodiment of the present invention. It should be noted that the basic principles and technical effects of the air-conditioning state control device 1 provided in this embodiment are the same as those of the above-mentioned embodiments. Corresponding content in the embodiment. The air conditioner state control device 1 includes a valve closing unit 2 , an operating state control unit 3 , a time calculation unit 4 and a judging unit 5 .

[0068] The valve closing unit 2 is used to control the closing of the electronic expansion valve according to the shutdown command.

[0069] It can be understood that step S1 can be executed by closing the valve unit 2 .

[0070] The operating state control unit 3 is configured to control the evaporator to maintain the working state for a first preset time after the electronic expansion valve is clos...

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PUM

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Abstract

The invention provides an air conditioner state control method and device and relates to the technical field of air conditioners. Firstly, after a shutdown instruction is received, an electronic expansion valve is controlled to be closed, moreover, after the electronic expansion valve is closed, an evaporator, a compressor and a condenser are controlled to continue to work, and finally, the compressor and the condenser are controlled to stop working according to the amount of refrigerant transferred into a pipeline between the compressor and the electronic expansion valve from a pipeline between the compressor and the evaporator. The air conditioner state control method and device have the beneficial effects that when the compressor is started, the problem that the compressor cannot be started due to the fact that too much liquid refrigerant is absorbed cannot occur, and therefore the reliability of the compressor is higher.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner state control method and device. Background technique [0002] In recent years, the frequency conversion one-drag multi-air conditioner has the advantages of more precise indoor temperature control, comfort and energy saving, and only one installation position for the outdoor unit because it uses a high-precision electronic expansion valve to control the amount of refrigerant, so it is deeply loved by people. [0003] However, due to the large number of internal units in the frequency conversion one-to-multiple system, the long pipeline requires more refrigerant. When all indoor units are turned off, refrigerant accumulation will occur. [0004] Wherein, a part of the refrigerant is accumulated in the pipeline between the compressor and the electronic expansion valve, and another part of the refrigerant is accumulated in the pipeline between the compr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/89F25B41/00F25B49/02F24F110/00
CPCF25B49/02
Inventor 侯丽峰秦宪王俊领吴锦平
Owner NINGBO AUX ELECTRIC
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