Patent ID: 11933509
Assignee: MIDEA GROUP CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  H  Y | IPC F  H

Claim 9:
10. A compressor pressure protection method for a refrigerating system comprising a compressor driving device, the method comprising:
measuring a pressure value in the refrigerating system when a compressor works normally; and
disconnecting a power supply circuit of the compressor and controlling the driving device to stop outputting a compressor driving signal when the pressure value in the refrigerating system is greater than a preset threshold, including when the pressure value in the refrigerating system is greater than the preset threshold, disconnecting the power supply circuit of the compressor, and then detecting a voltage value on a direct current bus in the power supply circuit of the compressor; and
controlling the compressor driving device to stop outputting a compressor driving signal when the voltage value on the direct current bus is greater than or equal to a preset voltage value.