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Air conditioner and defrosting control method thereof

A control method and technology for air conditioners, which are applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as poor reliability and complex systems, achieve high reliability, improve system operation efficiency, and improve The effect of defrosting efficiency

Active Publication Date: 2015-05-06
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in related technologies, non-stop defrosting can be realized through bypass, but the system is complex and has poor reliability

Method used

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  • Air conditioner and defrosting control method thereof
  • Air conditioner and defrosting control method thereof
  • Air conditioner and defrosting control method thereof

Examples

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] The defrosting control method of the air conditioner and the air conditioner according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] When the air conditioner is running in the heating mode, if the outdoor temperature is relatively low, the outdoor unit is prone to frost. For the normal operation of the air conditioner, defrosting is required. Firstly, the defrosting control method of the air conditioner according to the embodiment of the present in...

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Abstract

The invention discloses a defrosting control method of an air conditioner. The control method comprises the following steps that environment temperature and the temperature of an outdoor heat exchanger outlet or the temperature of a super cooling section are obtained; whether the defrosting condition is met or not is judged according to the environment temperature and the temperature of the outdoor heat exchanger outlet or the temperature of the super cooling section; when the judgment result shows that the defrosting condition is met, the wind speed of an indoor fan is decelerated, an electronic expansion valve is controlled to be lowered to the first opening degree state, an outdoor fan is closed, a compressor is regulated to the defrosting frequency, after the preset time, and the first ascending speed is used for controlling the electronic expansion valve to be raised to the second opening degree state, wherein the opening degree value of the second opening degree state is greater than the opening value of the first opening degree state. The defrosting control method of the air conditioner has the advantages that the defrosting can be realized without stopping the compressor, the method is simple, and the reliability is high. The invention also provides the air conditioner.

Description

technical field [0001] The invention belongs to the technical field of electric appliances, and in particular relates to a defrosting control method of an air conditioner and an air conditioner. Background technique [0002] An air conditioner is a device that passes through its internal refrigerant through a refrigeration or heating cycle composed of four components: a compressor, a condenser, a throttling component, and an evaporator. When the air conditioner is in the heating cycle, the refrigerant is compressed by the compressor to become a high-temperature and high-pressure state, and then passes through the four-way valve in the evaporator to dissipate heat to the room, and when it flows through the throttling part, its temperature and pressure are reduced, and then The low temperature, low pressure refrigerant absorbs heat as it passes through the condenser and flows back into the compressor. Among them, the compression process of the compressor, the condensation pro...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/41F24F11/89
Inventor 余立明
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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