An air conditioner unloading control system and method
A control system, air conditioner technology, applied in the direction of heating and ventilation control system, control input related to air characteristics, space heating and ventilation control input, etc.
Active Publication Date: 2018-02-06
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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[0004] The purpose of the present invention is to provide an air conditioner unloading control system and method, which is used to solve the problem of unloading the pressure in time when the air conditioner is started and ensuring the smooth start of the compressor
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[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.
[0031] figure 1 It is a structural diagram of the external unit of the air conditioner provided by the present invention, such as figure 1 As shown, the gas at the outlet of the compressor 1 reaches the four-way valve 5 through the compressor exhaust pipe 2 and then reaches the condenser 6. The compressor external fan (not shown in the figure) radiates heat to the condenser 6 and passes through the condenser 6. The condensed liquid passes through the throttling device 7 to the evaporator 8 and passes through the evaporator 8 for heat exchange, and then the gas vaporized by the evaporator 8 passes through the four-way valve 5 to the air return pipe 9 to enter the compressor a...
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The invention relates to the field of air conditioner unloading, and discloses an air conditioner unloading control system and method. In an air conditioner, the flow of air introduced into an air return pipe through a compressor exhaust pipe is controlled through an electromagnetic valve on an electromagnetic valve connection pipe, so that unloading of a compressor is controlled. A condenser is cooled through a compressor outer draught fan. The system comprises a temperature sensor and a controller, wherein the temperature sensor is used for detecting outdoor environment temperature, and the controller is used for controlling the opening degree of the electromagnetic valve according to the detected outdoor environment temperature when the air conditioner receives a start signal. The opening degree of the electromagnetic valve for unloading the compressor is controlled according to the detected outdoor environment temperature so that pressure can be unloaded in time when the air conditioner is started, it is guaranteed that the compressor is started smoothly, and the system operates reliably.
Description
Technical field [0001] The present invention relates to air conditioner unloading technology, in particular to an air conditioner unloading control system and method. Background technique [0002] The air conditioner is prone to problems such as excessive current and high system pressure at the moment of starting, especially when the outdoor environment temperature is high, which can easily cause compressor overload protection and compressor tripping. Especially for air conditioners with small pipe diameters or micro-channel heat exchangers, the compressor is more likely to trip and stop, or even unable to start the compressor. [0003] At present, although some air conditioners are equipped with an overpressure unloading valve, that is, it is opened when the compressor pressure is too high for unloading. Although this can solve some of the problems, the overpressure unloading valve is It only works when the pressure exceeds the predetermined pressure, so the instantaneous pressur...
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IPC IPC(8): F24F11/86F24F110/12
CPCF24F11/30F24F2110/10F24F2110/12
Inventor 陈灿文申孟亮马勇李嗣平
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD