Controller for base plate electric machine of microwave oven

The invention discloses a control device of the chassis motor of a microwave oven, comprising a low-voltage transformer, a first relay, a second relay and a third relay. The control device of the motor also comprises two or more temperature sensors which are arranged inside the cavity of the microwave oven and the output terminal of the sensor is connected with a control part. The control device has the advantages that since the temperature sensor is arranged inside the cavity of the microwave oven and the output terminal of the sensor is connected with the controller of the chassis motor, the motor stops running when the temperature difference of the temperature sensor in the cavity is larger than a standard value and at the moment, the microwave only concentrates to radiate a same part to increase the temperature of the part; when the temperature difference is lower than the standard value, the motor goes on running to guarantee that the cooked food has better thermal uniformity; and the control device has