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Defrosting control method of air conditioner and outdoor unit thereof

An air conditioner outdoor unit and control method technology, applied in the direction of control input related to air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., can solve the problem of affecting the heating efficiency of air conditioners, different frosting conditions, and defrosting Frequent and other problems, to prevent further decline in heating efficiency, prevent frequent defrosting, and save energy

Inactive Publication Date: 2018-01-12
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the heating conditions of the air conditioner are different each time, the frosting conditions are also different, so generally setting a fixed time may not be able to start defrosting at the best defrosting time.
If the defrosting time is too early, it will cause frequent defrosting and waste energy
If the defrosting time is too late, the condenser will accumulate too much frost, which will affect the heating efficiency of the air conditioner

Method used

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  • Defrosting control method of air conditioner and outdoor unit thereof
  • Defrosting control method of air conditioner and outdoor unit thereof
  • Defrosting control method of air conditioner and outdoor unit thereof

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Embodiment Construction

[0024] Embodiments of the present invention firstly provide an air conditioner, which may be a wall-mounted air conditioner or a vertical air conditioner. The above-mentioned air conditioner includes: a refrigerant circulation system formed by sequentially connecting the compressor 100 , the outdoor unit heat exchanger 200 and the indoor unit heat exchanger 300 , an index temperature detection module 120 and an average temperature calculation module 130 . The index temperature detection module 120 is configured to continuously detect the heating index temperature of the air conditioner indoor unit to obtain the variation relationship of the heating index temperature with respect to the heating duration. The above-mentioned change relationship can be expressed by a relational expression or by an image. The average temperature calculation module 130 is connected to the index temperature detection module 120 and is configured to calculate the average value of the heating index te...

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Abstract

The invention provides a defrosting control method of an air conditioner and an outdoor unit thereof. In the defrosting control method, a heating index temperature of an indoor unit is continuously monitored; and a mean value of the heating index temperature in a heating time period is calculated according to the heating index temperature. The mean value expresses the mean heating capacity of theair conditioner in the whole heating process; and when the mean value is lowered, an optimal defrosting beginning point of a heat exchanger of the outdoor unit is reached. When the heating index temperature is lower than the mean value of the heating index temperature, the outdoor unit of the air conditioner is defrosted, so that the optimal defrosting effect can be achieved. The defrosting methodcan defrost in the optimal time point, prevents frequent defrosting of the air conditioner to save the energy, guarantees the heating effect of the air conditioner, and improves the use experiences of users.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioner and a defrosting control method for an outdoor unit thereof. Background technique [0002] When the air conditioner is heating, the refrigerant passes through the compressor, evaporator and condenser in sequence. The condenser is in a low temperature state for a long time, so it is easy to frost. When the frosting reaches a certain thickness, it will affect the heat exchange efficiency of the condenser, resulting in a decrease in the overall heating capacity of the air conditioner and affecting the user experience. [0003] Existing air conditioners will automatically turn on the defrosting mode after heating for a period of time (or after accumulating heating for a period of time), that is, the four-way valve changes direction, the air conditioner turns on refrigeration, and the condenser is cooled by increasing the temperature of the condenser. def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/41F24F11/64F24F11/61F24F11/86F24F110/10
Inventor 杨中锋刘超超王彦生曾福祥
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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