Control method of outdoor motor, air conditioner, and storage medium
A control method and technology of external motors, which are applied in heating and ventilation control systems, heating methods, mechanical equipment, etc., can solve the problem of low exhaust pressure of refrigeration systems, compressor operating compression ratios that do not meet the safe operating range, and affecting compressor operation. Reliability and service life issues, to achieve the effect of extending service life and improving operational reliability
Active Publication Date: 2020-01-14
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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- Application Information
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Problems solved by technology
Especially when the outdoor ambient temperature is low, the exhaust pressure of the refrigeration system is too low, and then the operating compression ratio of the compressor does not meet the safe operating range, which affects the operating reliability and life of the compressor
Method used
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Embodiment Construction
[0036] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0037] The invention provides a control method for an outdoor motor, which can be used for variable speed control of a fan motor of an air conditioner in a computer room.
[0038] refer to figure 1 , figure 1 It is a flow chart of an embodiment of the control method of the outdoor motor of the present invention.
[0039] In this embodiment, the control method includes the following steps:
[0040] S10: After the compressor starts, monitor the condensing pressure P of the refrigeration system c ;
[0041] S20: When P c >P on , control the outdoor motor to start;
[0042] S30: After the outdoor motor runs for a preset period of time, monitor the evaporation pressure P of the refrigeration system e ;
[0043] S40: Obtain the evaporation pressure P according to the preset operating range of the compressor e The ...
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The invention discloses a control method of an outdoor motor, an air conditioner and a storage medium. The control method can be used for variable speed control over the motor of an outdoor fan of the computer room air conditioner. The control method comprises the specific operation steps that the system condensation pressure of a compressor after being started and the system evaporation pressure of the outdoor motor after being started are monitored, and according to the preset operation range of the compressor, the minimum exhaust pressure value corresponding to the evaporation pressure is obtained; and finally, according to the obtained condensation pressure and the minimum exhaust pressure value corresponding to the condensation pressure, the rotating speed of the outdoor motor is regulated in real time, and accordingly the exhaust pressure of a refrigerating system is regulated. The phenomenon that a piston rod is damaged due to compressor surging or load increasing caused by the excessively-low exhaust pressure is prevented, the operation reliability of the compressor is improved, and accordingly the service life of the compressor is prolonged.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to an outdoor motor control method, an air conditioner, and a storage medium. Background technique [0002] The computer room air conditioner operates throughout the year. During cooling operation, the refrigeration system controls the speed of the outdoor motor according to the condensing pressure. The condensing pressure is directly proportional to the motor speed. After working for a period of time, the devices in the equipment room usually generate heat, which causes the indoor ambient temperature to rise, and the evaporation pressure of the refrigeration system increases accordingly. Especially when the outdoor ambient temperature is low, the exhaust pressure of the refrigeration system is too low, and the operating compression ratio of the compressor does not meet the safe operating range, which affects the operating reliability and life of the compressor. Contents ...
Claims
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IPC IPC(8): F24F11/30F24F11/64F24F11/70F24F11/88F24F140/12
Inventor 卢文彪陈乾
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD