| 主权项 |
1. A motor-driven compressor comprising:
a compression mechanism that draws and compresses refrigerant of a refrigeration cycle; an electric motor that drives the compression mechanism; a driver circuit unit disposed at a position to be cooled by refrigerant drawn by the compression mechanism, the driver circuit unit supplying a power to the motor for driving the motor; a temperature detection unit that detects a temperature of the driver circuit unit or a relevant temperature of the temperature; and a motor control device disposed in the driver circuit unit to control a drive state of the motor based on a drive state command of the motor output from a refrigeration cycle control device that controls the refrigeration cycle, wherein the motor control device stores a predetermined drive pattern corresponding to a temperature characteristic of the driver circuit unit after starting the motor, and when the temperature detected by the temperature detection unit at a time of starting the motor is higher than or equal to a predetermined temperature, the motor control device performs a limit drive control according to the predetermined drive pattern regardless of the drive state command, and after the limit drive control is finished, the motor control device transitions to a normal drive control for driving the motor based on the drive state command. |
