Outer rotor permanent magnet motor heat radiation structure

• Main Authors: ZHU FALONG, WU QI, QIU YIMING, YE QICAO, KONG SIQI
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The utility model discloses an outer rotor permanent magnet motor heat radiation structure, which comprises an outer rotor, a permanent magnet, an inner stator and a heat radiation pipeline, the inner surface of the inner stator is provided with strip-shaped elliptical grooves, the heat radiation pipeline is formed by connecting a plurality of straight pipes and a plurality of U-shaped pipes, the plurality of straight pipes are arranged in a ring shape and are respectively embedded in each elliptical groove, and the U-shaped pipes are respectively embedded in the elliptical grooves. Every two adjacent straight pipes are connected through a U-shaped pipe to form a closed annular cooling liquid flow channel, the cooling liquid flow channel is connected with a water inlet pipe and a water outlet pipe, the straight pipes are extruded into the oval grooves so that one side faces of the straight pipes can be flush with the inner surface of the inner stator, the U-shaped pipes are connected with the straight pipes,