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Fixed-frequency air conditioner and control method and device of indoor draught fan thereof

An indoor fan and control method technology, applied in heating and ventilation control systems, mechanical equipment, high-efficiency adjustment technology, etc., can solve the problems of long defrosting cycle of air conditioners and affect the cooling effect of air conditioners, so as to improve the cooling effect and improve the cooling experience , the effect of reducing downtime

Active Publication Date: 2021-04-16
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology

Therefore, the problem in the related art is that if the indoor and outdoor temperatures remain constant, the defrosting speed of the evaporator is constant, and the start-stop time of the compressor is also constant, which will easily cause the air-conditioning defrosting cycle to be too long, thereby seriously Affect the cooling effect of the air conditioner

Method used

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  • Fixed-frequency air conditioner and control method and device of indoor draught fan thereof
  • Fixed-frequency air conditioner and control method and device of indoor draught fan thereof
  • Fixed-frequency air conditioner and control method and device of indoor draught fan thereof

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Embodiment Construction

[0036] 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.

[0037] The fixed-frequency air conditioner and its indoor fan control method and device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0038] figure 1 It is a flowchart of a method for controlling an indoor fan of a fixed-frequency air conditioner according to an embodiment of the present invention. like figure 1 As shown, the control method of the fixed-frequency air-conditioning indoor fan in the embodiment of the present invention includes the foll...

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Abstract

The invention provides a fixed-frequency air conditioner and a control method and device for an indoor draught fan thereof. The method comprises the steps of obtaining the current temperature of an indoor heat exchanger; detecting and identifying that the current temperature is less than or equal to a shutdown protection temperature, and continuously operating for a preset time; and according to the current temperature, controlling the rotating speed of the indoor draught fan to be adjusted, so that the defrosting period of the air conditioner is effectively shortened, the downtime of a compressor is shortened, the refrigerating effect is improved, and the refrigerating experience of users is guaranteed.

Description

technical field [0001] The invention relates to the technical field of fixed-frequency air conditioners, in particular to a control method and device for a fixed-frequency air conditioner and an indoor fan thereof. Background technique [0002] In related technologies, fixed-frequency air conditioners are usually used for refrigeration in low temperature environments. The indoor units of the air conditioners are prone to frosting, and the indoor low temperature protection function mainly controls the start and stop of the compressor through the temperature of the evaporator. During the stop process, the speed of the indoor fan is usually constant. Therefore, the problem in the related art is that if the indoor and outdoor temperatures remain constant, the defrosting speed of the evaporator is constant, and the start-stop time of the compressor is also constant, which will easily cause the air-conditioning defrosting cycle to be too long, thereby seriously affect the cooling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/77F24F11/64F24F11/61F24F140/20
CPCY02B30/70
Inventor 苏仁杰侯泽飞黄志刚郭用松
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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