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Air conditioner and defrosting control method thereof

A control method and air conditioner technology, which is applied in the direction of control input involving air characteristics, space heating and ventilation control input, air conditioning system, etc., can solve problems such as frosting of outdoor units and poor heating effect of air conditioners, and achieve The effect of improving experience

Active Publication Date: 2016-11-09
WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the air conditioner has been in heating operation for a period of time, there will be frost on the outdoor opportunity, which will cause the heating effect of the air conditioner to deteriorate

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

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Embodiment Construction

[0021] 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.

[0022] The following describes the air conditioner and its defrosting control method according to the embodiments of the present invention with reference to the accompanying drawings.

[0023] figure 1 is a structural schematic diagram of an air conditioner according to an embodiment of the present invention. like figure 1 As shown, the air conditioner includes: a compressor 1, a four-way valve 2, a condenser 3, an evaporator 4, an indoor fan 5, a throttling component 6, an electric auxiliary heater 7 and a control module (not ...

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Abstract

The invention discloses an air conditioner and a defrosting control method thereof. The method comprises the steps of when the air conditioner enters a defrosting mode and before the air conditioner performs defrosting action, carrying out refrigerant recycling control on a compressor, and controlling to turn off a second control valve to enable the air conditioner to enter a first refrigerant recycling process; judging whether the tube temperature of an evaporator is lower than or equal to a first preset temperature or not; if the tube temperature of the evaporator is lower than or equal to the first preset temperature, controlling to turn off a first control valve and turn off the compressor, and controlling to deenergize a four-way valve and to change the direction of the four-way valve; and after first preset time is delayed, controlling to turn on the first control valve and the second control valve at a preset speed, and controlling to turn on the compressor to enable the air conditioner to start performing defrosting action. According to the method, before the air conditioner performs defrosting action, a refrigerant is recycled beside the compressor, and when the system pressure is balanced, the direction of the four-way valve is changed, so that the situation that when the system pressure is imbalanced, noise is generated due to direction change and enters a room is avoided.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting control method and an air conditioner. Background technique [0002] After the air conditioner has been running for heating for a period of time, there will be frost on the outdoor opportunity, which will cause the heating effect of the air conditioner to deteriorate. [0003] In order to ensure the subsequent heating effect, the air conditioner will produce a defrosting process when certain conditions are met. During this process, the following situations will cause users to feel uncomfortable: the compressor will stop at the beginning and end of the defrosting process, and the four-way valve will change direction quickly, and at this time, due to the imbalance of system pressure, it will produce harsh "呲" The sound enters the room. Contents of the invention [0004] The present invention aims to solve one of the technical problems in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F5/00
CPCF24F5/001F24F11/30F24F11/42F24F11/62F24F11/64F24F11/70F24F11/83F24F11/84F24F2110/00F24F2221/34
Inventor 罗文宗陈新
Owner WUHAN REFRIGERATION EQUIP OF MIDEA GROUP
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