Electric motor
By incorporating magnetic flux barriers between passive poles in electric motors, the motor performance is enhanced with increased torque and power density, addressing the challenge of achieving high performance in small packages.
JP2025060666AActive Publication Date: 2025-04-10TAU MOTORS INC
Patent Information
- Application Number
- JP2024216171
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2018-08-07
- Filing Date
- 2024-12-11
- Publication Date
- 2025-04-10
- Estimated Expiration
- 2039-08-07
Smart Images
Figure 2025060666000001_ABST
Abstract
To provide a magnetically induced motive force aligned in a movement direction by a greater component.SOLUTION: An electric motor has a stator having multiple stator poles with associated electrical windings, and a rotor having multiple rotor poles. The rotor has flux barriers between adjacent rotor poles, the flux barriers each having a material with an electrical conductivity higher than that of the rotor pole material. The flux barriers are electrically isolated from one another external to the ferromagnetic material. Eddy currents are induced in the flux barrier to cause destructive interference of an impending magnetic field, such that the flux barrier effectively acts to inhibit magnetic flux during motor operation, which in some cases will result in a repulsive force that will act to increase an induced motive force on the rotor poles.SELECTED DRAWING: Figure 12
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Citation Information
Patent Citations
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