motor

The motor design addresses gaps between the yoke and magnet by using a holder to ensure close contact, improving performance and reducing magnetic resistance while minimizing waste and ensuring rotational balance.

JP7870646B2Active Publication Date: 2026-06-05MINEBEAMITSUMI INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
MINEBEAMITSUMI INC
Filing Date
2022-03-31
Publication Date
2026-06-05

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Patent Text Reader

Abstract

To provide a motor which enables improvement of performance of the motor.SOLUTION: A motor (1) includes: a rotor (20); and a stator (10) facing the rotor (20). The rotor (20) has: a magnet (23); a yoke (22) which contacts with the magnet (23); and a holder (21) which holds the magnet (23) and the yoke (22). The yoke (22) has: a first end (221a) defined at one end as seen in a circumferential direction; and a second end (221b) defined at the other end in the circumferential direction. In a radial direction, an inner peripheral surface of the yoke (22) faces an outer peripheral surface of the holder (21) through a first air gap (225).SELECTED DRAWING: Figure 5
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