Air conditioner and control method and device thereof

A control method and control device technology, applied in space heating and ventilation, heating and ventilation control systems, heating methods, etc., can solve the problem of reducing the service life of compressors and systems, refrigerants that cannot participate in circulation, lack of oil and fluorine in the system, etc. problems, to prolong compressor life, avoid compressor damage, and improve comfort

Inactive Publication Date: 2019-08-27
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology

[0002] For flammable refrigerants, the oil used in compressors in air-conditioning systems is usually mineral oil, and the viscosity of ordinary mineral oil will increase sharply at low temperatures, especially in cooling and heating inverters. The ultra-low temperature refrigerant and lubricating oil in the condenser need to enter the condenser through the throttling device. At the same time, the amount of flammable refrigerant charged is small due to s

Method used

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  • Air conditioner and control method and device thereof
  • Air conditioner and control method and device thereof
  • Air conditioner and control method and device thereof

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[0034] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0035] The air conditioner and its control method and device according to the embodiments of the present invention will be described below with reference to the drawings.

[0036] figure 1 It is a flowchart of a control method of an air conditioner according to an embodiment of the present invention. Such as figure 1 As shown, the control method of the air conditioner in the embodiment of the present invention includes the following steps:

[0037] S101: Continuously obtain the measured value inside the ...

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Abstract

The invention provides an air conditioner and a control method and device thereof. The method comprises the following steps that measurement values of the interior of a compressor are continuously acquired, wherein the measurement values comprise pressure values and/or temperature values, measurement values with the preset number in the measurement values and reaching preset threshold values are detected and identified, and the oil plug of the air conditioner is determined, so that the detection of whether the air conditioner is blocked or not is realized, the compressor is prevented from being burnt down, and the service life of the compressor is prolonged.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner and its control method and device. Background technique [0002] For flammable refrigerants, the oil used in compressors in air-conditioning systems is usually mineral oil, and the viscosity of ordinary mineral oil will increase sharply at low temperatures, especially in cooling and heating inverters. The ultra-low temperature refrigerant and lubricating oil in the condenser need to enter the condenser through the throttling device. At the same time, the amount of flammable refrigerant charged is small due to safety considerations, so the system pressure is also small, which will cause blockage of relatively high-viscosity oil, resulting in the failure of the refrigerant to participate. Circulation, compressor idling, capacity and power decline, and due to the oil level drop of the compressor, the system is short of oil and fluorine, and the co...

Claims

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Application Information

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IPC IPC(8): F24F11/32F24F11/49F24F11/64F24F11/526F24F11/61F24F140/20
CPCF24F11/32F24F11/49F24F11/526F24F11/61F24F11/64F24F2140/20
Inventor 刘旭
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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