Invention Application
- Patent Title: MOTOR
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Application No.: US17517169Application Date: 2021-11-02
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Publication No.: US20220140675A1Publication Date: 2022-05-05
- Inventor: Daisuke ICHIGOZAKI , Kyoko NAKAMURA , Masaaki ITO
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota-shi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi
- Priority: JP2020-184675 20201104
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K15/03

Abstract:
Provided is a motor capable of suppressing reduction of the torque of the motor even if the amount of use of the permanent magnets embedded in the rotor core is reduced. A motor includes a rotor with permanent magnets embedded in a rotor core, and a stator positioned on an outer circumference of the rotor. The rotor includes magnetic poles formed around a rotation axis of the rotor, the magnetic poles having the permanent magnets arranged therein. The permanent magnets in adjacent magnetic poles are arranged such that positions of a north pole and a south pole of the permanent magnet in one magnetic pole are inverted from those of the permanent magnet in a magnetic pole adjacent to the one magnetic pole. The permanent magnets each have a residual magnetization that decreases as it moves from the north pole toward the south pole.
Public/Granted literature
- US11682936B2 Motor Public/Granted day:2023-06-20
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