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Air conditioner and control method of electronic expansion valve of air conditioner

The technology of an electronic expansion valve and control method is applied in the direction of control input related to air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., which can solve the problems of easy generation of refrigerant gas and flow sound, etc., and achieve improvement Comfort, noise reduction, and the effect of avoiding the sound of refrigerant air flow

Active Publication Date: 2016-10-12
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a method for controlling the electronic expansion valve of an air conditioner and an air conditioner, aiming at solving the technical problem that the air flow sound of the refrigerant is likely to be generated at the beginning of the start-up of the air conditioner

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  • Air conditioner and control method of electronic expansion valve of air conditioner
  • Air conditioner and control method of electronic expansion valve of air conditioner

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no. 2 example

[0059] Further, based on the first embodiment of the control method of the air conditioner electronic expansion valve of the present invention, the present invention also proposes a second embodiment of the control method of the air conditioner electronic expansion valve, and the control method of the air conditioner electronic expansion valve further includes:

[0060] After the compressor reaches the target operating frequency and runs stably, obtain the current first discharge temperature and the current second operating frequency of the compressor, and determine the target discharge corresponding to the second operating frequency temperature;

[0061] When the first exhaust gas temperature is greater than the target exhaust temperature, obtain the current ambient temperature, and determine the relationship between the current ambient temperature and The noise critical opening value corresponding to the second operating frequency;

[0062] Adjust the opening of the electro...

no. 3 example

[0069] Further, based on the first embodiment of the control method of the air conditioner electronic expansion valve of the present invention, the present invention also proposes a third embodiment of the control method of the air conditioner electronic expansion valve, and the control method of the air conditioner electronic expansion valve further includes:

[0070] When the compressor reaches the target operating frequency, determine a reference opening value corresponding to the target operating frequency according to the corresponding relationship, and adjust the opening of the electronic expansion valve to the reference opening value ;

[0071] After the compressor runs stably, acquire the current first discharge temperature and the current second operating frequency of the compressor, and determine a target discharge temperature corresponding to the second operating frequency;

[0072] When the first exhaust gas temperature is greater than the target exhaust temperatur...

no. 1 example

[0108] Further, based on the first embodiment of the air conditioner of the present invention, the present invention also proposes a second embodiment of the air conditioner, the acquisition module 120 is also used to , acquiring the current first exhaust temperature and the current second operating frequency of the compressor, and the determination module 110 is further configured to determine a target exhaust temperature corresponding to the second operating frequency;

[0109] The acquisition module 120 is also used to acquire the current ambient temperature when the first exhaust gas temperature is greater than the target exhaust temperature, and the determination module 110 is also used to obtain the current ambient temperature according to the preset ambient temperature, operating frequency and noise threshold. Correspondence between the opening values, determining the noise critical opening value corresponding to the current ambient temperature and the second operating f...

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Abstract

The invention discloses a control method of an electronic expansion valve of an air conditioner. The control method comprises the steps that when the air conditioner is started, object running frequency of a compressor is determined; current first running frequency of the compressor is acquired, and when the first running frequency fails to reach the object running frequency, an opening value corresponding to the first running frequency is determined according to the correspondence between the preset running frequency and the opening value of the electronic expansion valve; and the opening value of the electronic expansion value is adjusted to the determined opening value, wherein in the correspondence, the lower the preset running frequency is, the lower the opening value corresponding to the running frequency is. The invention further discloses the air conditioner. The opening of the electronic expansion valve can not be too big at the initial starting stage of the compressor, so that a situation that refrigerant air flow sound appears at the initial starting stage of the compressor is avoided effectively, the noise at the initial starting stage of the air conditioner is reduced, and the comfortable feeling of a user using the air conditioner is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for controlling an electronic expansion valve of an air conditioner and an air conditioner. Background technique [0002] In an air conditioner, an electronic expansion valve is usually installed between the indoor heat exchanger and the outdoor heat exchanger, and the opening of the electronic expansion valve is controlled during the operation of the air conditioner. In the prior art, at the initial stage of starting the air conditioner, that is, before the operating frequency of the compressor reaches the target frequency, the opening of the electronic expansion valve is generally adjusted to the preset opening value until the operating frequency of the compressor reaches the target frequency After that, the opening of the electronic expansion valve will be controlled according to the discharge temperature of the compressor. Since the operating frequency of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/83F24F2110/10F24F11/64F24F11/84
Inventor 张勤奋李凤嘉马攀吴惠开王少华
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD
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