Refrigerant leakage detection method of air conditioner, refrigerant leakage detection device and air conditioner
A technology of refrigerant leakage and detection method, which is applied in the direction of control input related to air characteristics, heating method, space heating and ventilation, etc., can solve the problems of imperceptible and refrigerant leakage, and achieve the solution of imperceptible, service life, and The effect of cooling and heating
Active Publication Date: 2021-03-19
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology
For this reason, the present invention proposes a refrigerant leakage detection method for an air conditioner, which can detect whether the refrigerant is leaking in time, and can solve the problem that the refrigerant leakage is difficult to detect
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[0028] 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 only for explaining the present invention and should not be construed as limiting the present invention.
[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invent...
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The invention discloses a refrigerant leakage detection method and a refrigerant leakage detection device of an air conditioner and the air conditioner, the air conditioner comprises a compressor, thecompressor is provided with an air return port, and the refrigerant leakage detection method is characterized by comprising the following steps: receiving a startup instruction; detecting the real-time pressure Pt of an air return port of the compressor, the indoor environment temperature T1 and the outdoor environment temperature T4; obtaining a set pressure value Ps according to the detected indoor environment temperature T1 and outdoor environment temperature T4, and judging whether (Ps-Pt) / Ps is smaller than 20% or not; if (Ps-Pt) / Ps is smaller than 20%, sending out refrigerant leakage prompt information, and controlling the compressor to be stopped; and if (Ps-Pt) / Ps is larger than or equal to 20%, controlling the air conditioner is controlled to continue to operate, and continuouslyjudging whether (Ps-Pt) / Ps is smaller than 20% or not. Therefore, by means of the refrigerant leakage detection method, whether the refrigerant leaks or not can be detected in time, the problem thatrefrigerant leakage is not easy to perceive can be solved, the refrigerating and heating effects of the air conditioner can be guaranteed, and then the service life of the air conditioner can be guaranteed.
Description
technical field [0001] The invention relates to the field of household electrical appliances, in particular to a method for detecting refrigerant leakage of an air conditioner, a device for detecting refrigerant leakage and an air conditioner. Background technique [0002] When the air conditioner is cooling, the refrigerant of the air conditioner is easy to leak. In related technologies, there are many methods for detecting refrigerant leakage: the first is to test the pressure of the low-pressure valve through a pressure gauge connected to the low-pressure valve to detect whether the refrigerant is leaking; The first is to detect whether the refrigerant is leaking by observing whether the high-pressure valve is frosted; the third is to detect whether the refrigerant is leaking by subtracting the difference between the temperature in the middle of the evaporator and the indoor ambient temperature. [0003] Wherein, since the external unit of the air conditioner is installed...
Claims
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IPC IPC(8): F24F11/36F24F11/64F24F11/52F24F11/86F24F11/526F24F110/10F24F110/12F24F140/12
CPCF24F11/36F24F11/52F24F11/526F24F11/64F24F11/86F24F2110/10F24F2110/12F24F2140/12
Inventor 苏仁杰杨晓东王耀黄志刚郭用松
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD