Multi-chute hollow-solid permanent magnet composite synchronous motor rotor structure

• Main Authors: LIU XIAOKE, TANG HAOYUE, HONG JIANFENG, LIU WENMAO, SHEN JIAFENG, LUO SHIFAN, ZHAO JING, CAO JUNCI, LI WEILI, DI JUN, ZHAO QI
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2024
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention provides a multi-chute hollow-solid permanent magnet composite synchronous motor rotor structure. Comprising a lamination layer and a sheath layer, the lamination layer is formed by laminating silicon steel sheets, the sheath layer is a solid structure sheath layer made of a magnetic conductive metal material with redundant thickness, and the sheath layer is sleeved on the outer circle of the lamination layer through thermal fit. A slotting structure is made in the sheath layer or slotting structures are made in the sheath layer and the lamination layer at the same time, and the slotting structures form rotor slots. The invention provides the high-efficiency self-starting permanent magnet synchronous motor rotor structure with self-starting capability, high starting torque and low starting current, the rotor structure is combined with the skewed slot design and the cage bar structure scheme, so that the rotor self-ventilation cooling circulation without relying on additional mechanical equipment