Abstract: This article introduces the structure of household refrigeration compressor motor, and classifies the typical phenomena of motor burnout. Aiming at the phenomenon of motor burnout in household refrigeration compressor, through the method of establishing motor model and external circuit coupling, the distribution of winding temperature under overload, short circuit between windings, short circuit between windings is analyzed experimentally, and the root cause of motor winding burnout is found out. It is convenient to put forward improvement scheme for motor burnout fault of refrigeration compressor in later period.

Key words: Refrigerator compressors, Motor, Overload, Short-circuit, Winding burnout