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Control method for air conditioner, and air conditioner

A control method and technology for air conditioners, applied in air conditioning systems, heating and ventilation control systems, applications, etc., can solve problems such as affecting the service life of indoor temperature four-way valves, and achieve the purpose of improving user experience, reducing influence and prolonging service life. Effect

Active Publication Date: 2020-09-01
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the existing air conditioner due to the frosting of the heat exchanger of its outdoor unit, it needs to enter the defrosting frequently mode, which will affect the indoor temperature and the service life of the four-way valve. The present invention provides a control method for an air conditioner. The air conditioner includes an indoor unit and an outdoor unit, and the heat exchanger of the outdoor unit Refrigerant heating components are arranged on it, and the control method includes: acquiring the coil temperature of the heat exchanger; comparing the coil temperature of the heat exchanger with the frosting warning temperature; if the If the coil temperature is lower than the frosting warning temperature, the refrigerant heating component is operated; after the refrigerant heating component operates for a set time, the coil temperature of the heat exchanger is compared with the frosting risk temperature. Comparison; if the coil temperature of the heat exchanger is lower than the frosting risk temperature, then judge whether the heat exchanger meets the defrosting condition; according to the judgment result, selectively make the air conditioner enter the defrosting mode; Wherein, the frosting risk temperature is lower than the frosting warning temperature

Method used

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  • Control method for air conditioner, and air conditioner
  • Control method for air conditioner, and air conditioner
  • Control method for air conditioner, and air conditioner

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Embodiment Construction

[0021] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0022] Based on the background technology, it is pointed out that the existing air conditioner needs to enter the defrosting mode frequently due to the frosting of the heat exchanger of the outdoor unit, which will affect the indoor temperature and the service life of the four-way valve. The present invention provides a control method for an air conditioner and the air conditioner, aiming to reduce the number of times the air conditioner enters the defrosting mode, thereby reducing the number of times the air conditioner stops running the heating mode, thereby reducing the impact on the indoor temperature. The use experience of the user is imp...

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Abstract

The invention belongs to the technical field of air conditioners, and particularly provides a control method for an air conditioner, and the air conditioner. The air conditioner comprises an indoor unit and an outdoor unit, and a refrigerant heating component is arranged on a heat exchanger of the outdoor unit; the control method comprises the steps of acquiring the coil temperature of the heat exchanger and comparing the coil temperature with frosting warning temperature; operating the refrigerant heating component if the coil temperature of the heat exchanger is lower than the frosting warning temperature; comparing the coil temperature of the heat exchanger with the frosting risk temperature after the refrigerant heating component runs for a set time; judging whether the heat exchangermeets the defrosting conditions if the coil temperature of the heat exchanger is lower than the frosting risk temperature; and enabling the air conditioner to enter the defrosting mode selectively according to the judgment results. Through such arrangement, the number that the air conditioners enters the defrosting mode can be reduced, and the number that the air conditioner stops running in the heating mode; the influence on indoor temperature is reduced, and the reversing number of a four-way valve can be further reduced; and the service life of the four-way valve is prolonged.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and specifically provides an air conditioner control method and the air conditioner. Background technique [0002] An air conditioner is a device capable of cooling / heating a room. When the air conditioner is heating and running, the water vapor in the air will condense into frost crystals on the surface of the heat exchanger of the outdoor unit. Air convection heat exchange affects the heating effect of the air conditioner. At this time, it is necessary to defrost the heat exchanger of the outdoor unit. [0003] When it is necessary to defrost the heat exchanger, switch the four-way valve so that the high-temperature and high-pressure gaseous refrigerant discharged from the compressor enters the heat exchanger, and the high-temperature and high-pressure gaseous refrigerant enters the heat exchanger and liquefies, dissipating a large amount of heat. to defrost the heat exchanger. Afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/70F24F11/61F24F11/65F24F140/20F24F110/12
CPCF24F11/42F24F11/64F24F11/70F24F11/61F24F11/65F24F2140/20F24F2110/12F24F2221/34
Inventor 荣丹宋强刘江彬刘景升孟庆良谭雪艳
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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