Motor stator winding for inhibiting eddy current loss and temperature rise of top turn coil

• Main Authors: TANG HAOYUE, ZHANG MEIWEI, LIU WENMAO, LUO SHIFAN, LI WEILI, DI JUN, WU ZHIGANG, HUANG BAOWANG, XIE WANLU
• Format: Patent
• Language: Chinese; English
• Published: 20.05.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention provides a motor stator winding for inhibiting eddy current loss and temperature rise of a top turn coil, and belongs to the technical field of motors, the top turn coil is a winding conductor closest to an air gap in a specified sub-slot, and the motor stator winding comprises a hollow rectangular conductor. The motor stator winding further comprises a solid rectangular conductor. Wherein at least one layer of hollow rectangular conductor is arranged downwards from the top-turn coil closest to the air gap, and the rest of the hollow rectangular conductors are solid rectangular conductors; and the hollow rectangular conductor is connected with the corresponding coil lower-layer edge solid rectangular conductor through the end part of the motor to form a turn of complete coil. The problems of large eddy current loss, overhigh temperature rise, overlarge temperature difference between conductors and the like of the top turn close to the air gap and the winding nearby the top turn are reduced, the