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Method and device for eliminating abnormal sound of air conditioner

A technology for air conditioners and abnormal noises, which is applied in the field of methods and devices for eliminating abnormal noises in air conditioners, can solve problems such as abnormal noises in refrigerant flow, and achieve the effect of reducing abnormal noises in refrigerant flow.

Active Publication Date: 2016-11-09
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a method and device for eliminating abnormal noise of an air conditioner. The expansion valve is constantly adjusted, which is prone to the problem of abnormal sound of refrigerant flow

Method used

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  • Method and device for eliminating abnormal sound of air conditioner
  • Method and device for eliminating abnormal sound of air conditioner

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no. 2 example

[0065] refer to Figure 4 , Figure 4 It is a schematic flowchart of the third embodiment of the method for eliminating abnormal noise of an air conditioner according to the present invention. Based on the second embodiment of the above method, the method further includes:

[0066] Step S60, obtaining the operating frequency variation value of the compressor, the target operating frequency variation value and the electronic expansion valve target operating opening variation range;

[0067] Step S70, when the change value of the operating frequency of the compressor is greater than the change value of the target operating frequency, control the operating opening adjustment range of the electronic expansion valve to not exceed the target operating opening change range.

[0068] The change of the operating frequency of the compressor will change the high and low pressure of the refrigerant circulating in the refrigeration system, and when the operating frequency of the compress...

no. 3 example

[0070] refer to Figure 5 , Figure 5 It is a schematic flowchart of the fourth embodiment of the method for eliminating abnormal noise of an air conditioner according to the present invention. Based on the third embodiment of the above method, the method further includes:

[0071] Step S80, when the operating frequency change value of the compressor is less than or equal to the target operating frequency change value, adjusting the second preset time according to the operating frequency of the compressor;

[0072] Step S90 , adjusting the operating opening of the electronic expansion valve according to the discharge temperature of the compressor every adjusted second preset time.

[0073] Changes in the operating frequency of the compressor will lead to changes in the high and low pressures of the refrigerant circulating in the refrigeration system, so the time required to balance the high and low pressures of the refrigerant circulating in the refrigeration system after ad...

no. 4 example

[0075] refer to Figure 6 , Figure 6 It is a schematic flowchart of the fifth embodiment of the method for eliminating abnormal noise of an air conditioner according to the present invention. Based on the fourth embodiment of the above method, the method further includes:

[0076] Step S100 , when the discharge temperature of the compressor is abnormal, adjust the operating opening of the electronic expansion valve according to the target discharge temperature.

[0077] As mentioned above, if the discharge temperature of the compressor is too high, it will lead to chemical reactions in the compressor shell, oil, refrigerant, tube group, etc., which will shorten the service life of the compressor; when the discharge temperature of the compressor is abnormal, in order to prevent In the event of damage to the air conditioner, the operating opening of the electronic expansion valve should be adjusted according to the target exhaust temperature. The target exhaust temperature ca...

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Abstract

The invention discloses a method for eliminating the abnormal sound of an air conditioner. The method comprises the steps that when an air conditioner starting command is detected, a compressor is controlled to start, and an electronic expansion valve is controlled to operate at an initial opening degree; and when the operation time of the compressor is shorter than the first preset time after the compressor starts, the initial opening degree is kept as the operation opening degree of the electronic expansion valve. The invention further discloses a device for eliminating the abnormal sound of the air conditioner. In the starting stage of the compressor, the initial opening degree is kept as the operation opening degree of the electronic expansion valve, and the abnormal flowing sound, caused by continuous adjustment of the electronic expansion valve, of a refrigerant in the refrigerant pressure balancing process can be effectively lowered.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for eliminating abnormal noise of an air conditioner. Background technique [0002] The noise of a household air conditioner is an important factor affecting its comfort index, and it is also one of the important indicators for evaluating the quality of a household air conditioner. With the development of the economy and the continuous improvement of living standards, people have higher and higher requirements for the noise index of air conditioners. One of the important indicators of market competitiveness. [0003] The frequency conversion air conditioner is based on the ordinary air conditioner, which uses a special frequency conversion compressor and adds a frequency conversion control system, which can automatically provide the required cooling or heat according to the room conditions; when the indoor temperature reaches the desired value, the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F13/24
CPCF24F11/30F24F11/62F24F11/64F24F13/24F24F2013/247
Inventor 林竹
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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