Flameproof and intrinsically safe variable frequency motor

The utility model relates to the variable frequency speed regulating technology of a scraper conveyor and a coal plough, in particular to a flameproof and intrinsically safe variable frequency motor for coal mines, which comprises a frequency converter and a motor. The frequency converter and the motor are arranged in one flameproof shell; the frequency converter is fixedly arranged above the motor; and the output end of the frequency converter is connected with the motor and transmits three-phase power for the rotation of the motor. The utility model reasonably combines the motor and the frequency converter arranged in the flameproof shell, prevents the interference to the external equipment caused by high harmonics in the output of the frequency converter, constrains the influence range of the interference into the equipment, has the advantages of small size, convenient use and direct connection with the load, adopts the water cooling method, and realizes the terminal control and communication control. In particular, the utility model is applicable to the variable frequency speed regulation of the high-power scraper conveyor in the coal mine, and can solve the problems of startup, synchronization, speed regulation and overload handling of the driving motors at the two ends of the scraper conveyor.