Controlling method for defrosting of air conditioner

A control method and air-conditioning technology, applied in heating and ventilation control systems, refrigerators, heating methods, etc., can solve the problems of affecting heating effect, inconvenience for users, low defrosting accuracy, etc., to achieve the best defrosting effect, hardware The effect of cost increase and heating efficiency improvement

Active Publication Date: 2017-12-08
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defrosting accuracy of existing air conditioners is not high, and improper setting of

Method used

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  • Controlling method for defrosting of air conditioner
  • Controlling method for defrosting of air conditioner

Examples

Experimental program
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Example Embodiment

[0037] The control method of the present invention can be used to defrost the fixed frequency air conditioner. Specifically, the air conditioner has a heating mode and a defrosting mode that is activated after meeting a preset trigger condition when the air conditioner works in the heating mode.

[0038] figure 1 It is a schematic flowchart of a control method according to an embodiment of the present invention. See figure 1 , Control methods include:

[0039] Step S100, the air conditioner enters the heating mode for the nth time.

[0040] Step S102, detecting the coil temperature of the heat exchanger in the air-conditioning room.

[0041] In step S104, it is determined whether the air conditioner meets the preset trigger condition; if so, step S106 is executed, and if not, step S102 is returned to continue.

[0042] Step S106, the air conditioner enters the defrosting mode for the mth time, obtains the heating mode time Sy for the entire process of running the nth heating mode, and...

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PUM

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Abstract

The invention provides a controlling method for defrosting of an air conditioner. The air conditioner has a heating mode and a defrosting mode started after a preset triggering condition is met when the air conditioner is operated in the heating mode. The controlling method comprises the steps that when the air conditioner is operated in the heating mode, the coil temperature of an indoor heat exchanger is continuously detected; when the preset triggering condition is met, an air conditioner self-heating mode is switched to the defrosting mode, and time of switching the heating mode in this time to the defrosting mode of the air conditioner is calculated, and the time is called the heating mode time Sy; when the air conditioner finishes defrosting, the time of running the defrosting mode of the air conditioner in this time is obtained, and the time is called the defrosting mode time Sc; and the dynamic triggering condition for entering in the defrosting mode of the air conditioner for the next time is determined according to the coil temperature, the heating mode time Sy and the defrosting mode time Sc. The controlling method for defrosting of the air conditioner can adjust the triggering condition for entering the defrosting mode for the next time so that the air conditioner can defrost at the most suitable time, and the defrosting effect is optimum.

Description

technical field [0001] The invention relates to an air conditioner control method, in particular to an air conditioner defrost control method. Background technique [0002] When the air conditioner is in heating operation, if the outdoor ambient temperature is below freezing point and the air contains a certain amount of humidity, it is easy to freeze and form frost on the surface of the heat exchanger of the outdoor unit, and the existence of frost will affect the heating performance of the air conditioner. Therefore, during the heating process of the air conditioner, it is necessary to enter the defrosting mode for defrosting at regular intervals. The defrosting trigger conditions of the air conditioner greatly affect the defrosting effect, heating performance and comfort of the air conditioner. The defrosting precision of the existing air conditioners is not high, and improper setting of the defrosting mode will seriously affect the heating effect and bring inconvenience...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/00F25B47/02
Inventor 刘超超王彦生曾福祥姜全超
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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