Defrost control method and device for air-conditioner

A control method and a technology of a control device, which are applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., can solve problems such as energy consumption, reduce energy consumption, and avoid frost-free The effect of defrosting and prolonging the service life

Inactive Publication Date: 2017-01-04
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology

[0003] The main purpose of the present invention is to provide a defrosting control method and device for an air conditioner, aiming at solving the defects of frequent defrosting of air conditioners in the prior art and consuming more energy

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  • Defrost control method and device for air-conditioner
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  • Defrost control method and device for air-conditioner

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no. 1 example

[0057] Further, refer to figure 2 , based on the first embodiment of the defrosting control method of the air conditioner of the present invention, in the second embodiment of the defrosting control method of the air conditioner of the present invention, the above step S30 includes:

[0058] Step S31, detecting the ambient temperature and the ambient wet bulb temperature;

[0059] In step S32, the corresponding ambient dew point temperature is obtained through query or calculation according to the detected ambient temperature and ambient wet bulb temperature.

[0060] In this embodiment, the wet-bulb temperature refers to the air temperature when the water vapor in the air reaches saturation under the same enthalpy air state. The content of water vapor in the air is related to temperature, and the corresponding ambient dew point temperature can be obtained from the detected ambient temperature and ambient wet bulb temperature. Specifically, a plurality of ambient temperatur...

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Abstract

The invention discloses a defrost control method for an air-conditioner. The method comprises the steps of detecting the refrigerant pressure of a heat exchanger, acquiring a corresponding saturation temperature according to the detected refrigerant pressure of the heat exchanger, acquiring the dew point temperature of the environment, and controlling the air-conditioner to enter a defrost mode when the corresponding saturation temperature is lower than 0 DEG C and lower than or equal to the dew point temperature of the environment. The invention further discloses a defrost control device for an air-conditioner. It can be guaranteed that defrosting can be conducted in time when frost exists, the situation that defrosting is conducted when no frost exists is avoided, energy consumption is reduced, and the service life of the air-conditioner is prolonged.

Description

technical field [0001] The present invention mainly relates to the technical field of air conditioners, in particular to a defrosting control method and device for an air conditioner. Background technique [0002] With the improvement of people's living standards, there are more and more types of household appliances. Wherein the air conditioner is one of requisite household electrical appliances in people's life, but existing air conditioner is often accompanied by heat exchanger frosting phenomenon when running. Once the heat exchanger is frosted, it will reduce the heat exchange efficiency of the air conditioner and hinder the improvement of the air conditioner's heating capacity. In order to solve the capacity attenuation problem of the air conditioner after frosting, the air conditioner needs to switch to the defrosting mode, but too frequent defrosting on the one hand sacrifices the heating capacity of the air conditioner and consumes more energy for defrosting operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F25B47/02
CPCF24F11/30F24F11/41F24F11/62F24F11/65F24F2110/10F25B47/02
Inventor 万永强许永锋熊美兵李波舒文涛钱小龙陈汝锋杨元涛尚建武
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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