A control method for air conditioner defrosting
A control method and air-conditioning technology, which is applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., which can solve user inconvenience, low defrosting accuracy, and affect heating effect and other problems, to achieve the effect of increased hardware cost, better defrosting effect, and improved heating efficiency
Active Publication Date: 2019-07-02
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Problems solved by technology
The defrosting accuracy of existing air conditioners is not high, and improper setting of defrosting mode will seriously affect the heating effect and bring inconvenience to users
Method used
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[0037] The control method of the 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 a preset trigger condition is met when the air conditioner works in the heating mode.
[0038] figure 1 is a schematic flowchart of a control method according to an embodiment of the present invention. see figure 1 , the control methods include:
[0039] In 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] Step S104, judging whether the air conditioner satisfies the preset trigger condition; if yes, execute step S106; if not, return to continue to execute step S102.
[0042] Step S106, the air conditioner enters the defrosting mode for the mth time, obtains the heating mode time Sy of the whole process of running the nth heating mode, obtain...
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An air conditioner defrosting control method. An air conditioner has a heating mode and a defrosting mode, activated if a preset trigger condition is satisfied when the air conditioner operates in the heating mode. The control method comprises: continuously detecting a coil temperature of an indoor heat exchanger (S102) when the air conditioner operates in the heating mode (S100); if the preset trigger condition is satisfied (S104), the air conditioner switching from the heating mode to the defrosting mode, and counting a time duration from activating the heating mode to switching to the defrosting mode in a current instance, the time duration being referred to as a heating mode duration Sy (S106); when the air conditioner finishes defrosting (S108), obtaining a time duration of the operation of the defrosting mode of the current instance, the duration being referred to as a defrosting mode duration Sc (S110); and determining, according to the coil temperature, the heating mode duration Sy, and the defrosting mode duration Sc, a dynamic trigger condition for the air conditioner to enter the defrosting mode in a subsequent instance (S112, S113). The control method adjusts a trigger condition for the subsequent instance the air conditioner enters the defrosting mode, enabling the air conditioner to defrost at the most appropriate time, thereby achieving optimal defrosting.
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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IPC IPC(8): F24F11/64F24F110/10F24F110/00
CPCF24F11/00F25B47/02
Inventor 刘超超王彦生曾福祥姜全超
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD