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Air conditioner defrosting control method, system and air conditioner
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A control method and technology for a control system, which are applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc. The effect of reducing the volume and improving the heat transfer effect
Active Publication Date: 2021-07-30
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] Aiming at the deficiencies of the prior art, the present invention proposes an air-conditioning defrosting control method, which solves the problems of frost-free defrosting in the field of air-conditioning, heat exchange and frosting affecting the heating effect and comfort of the air-conditioning
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Embodiment 1
[0020] Embodiment 1: An air-conditioning defrosting control method.
[0021] An air conditioner defrosting control method, the specific steps are as follows:
[0022] Detect the current operating mode of the air conditioner. If the air conditioner is in the cooling mode, control the hot gas bypass pipe 7 to always be closed; Specifically, it can be determined according to the current outer ring temperature. For example, when the current outer ring temperature is greater than 3°C, X=20 at this time), the system starts to detect whether the hot gas bypass pipe 7 is opened; Ymin (the value of Y can be changed, mainly used to prevent false detection, Y=1) the detected outer tube temperature T
[0023] If the air conditioning system meets the defrosting conditions, the fan 5 and solenoid valve 6 are turned on at...
Embodiment 2
[0025] Embodiment 2: An air-conditioning defrosting control system.
[0026] Such as figure 2 As shown, an air conditioner defrosting control system includes an outdoor unit 1, a compressor 2, an evaporator 3 and an electrical box 4 are arranged inside the outdoor unit 1, and a transformer The diameter of the hot gas bypass pipe 7, the hot gas bypass pipe 7 extends to the evaporator 3, the inside of the hot gas bypass pipe 7 is provided with a solenoid valve 6; the hot gas bypass pipe 7 is provided with several exhaust holes 8 ; Hot gas bypass pipe 7 and electrical box 4 connection is provided with a fan 5 .
[0027] In this embodiment, when the fan 5 is turned on, the solenoid valve 6 is opened synchronously, and the hot gas in the electrical box 4 is transported to the pipe temperature position of the evaporator 3 of the outdoor unit 1 through the hot gas bypass pipe 7, and the solenoid valve 6 is used to control the hot gas bypass The pipe 7 is opened and closed, and is ...
Embodiment 3
[0028] Embodiment 3: a computer-readable storage medium.
[0029] A computer-readable storage medium is used for storing a computer program, and when the computer program is invoked by a processor, the air-conditioning defrosting control method described in Embodiment 1 is implemented.
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Abstract
The present invention provides an air conditioner defrosting control method, system and air conditioner. The current operating mode of the air conditioner is detected. If the operating mode of the air conditioner is the heating mode, the temperature of the outer pipe is detected. If the temperature of the outer pipe meets the judgment condition, the switch on the bottom of the electrical box is turned on. Hot gas bypass pipe; if the air conditioning system meets the defrosting conditions, open the hot gas bypass pipe continuously, and close the hot gas bypass pipe after defrosting is completed. In the present invention, through the hot gas bypass pipe added to the electrical box, during the heating operation of the unit, the six channels of the outdoor unit are controlled through the hot gas bypass pipe, so that the heat discharged from the components in the electrical box can flow through the outdoor unit, thereby improving the outdoor unit replacement rate. Thermal effect, no frost is to reduce the defrosting efficiency. When defrosting, it discharges high temperature heat, realizes fast defrosting or defrosting cleanly, shortens the defrosting time, continuously supplies heat to the room, further reduces the temperature drop of the room, and improves the human body temperature of the room. comfort.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting control method, system and air conditioner. Background technique [0002] In the air energy air conditioner system, frosting is one of the common phenomena in the system operation. Frost will form on the surface of the heat exchanger. If the frost on the heat exchange surface is not removed in time, it will block the air passage and reduce the heat transfer surface, the flow resistance of the air will increase significantly, the heat exchange efficiency will be significantly reduced, and the heating effect will be reduced. frost state. However, if the heat pump air conditioner operates under the standard heating condition (2 / 1°C; -7 / -8°C), the defrosting time will be very long when there is no frost and defrost during heating, and it will take 10 Minutes, then the heating capacity of the air conditioner does not meet the requirements of t...
Claims
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Application Information
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