Title:
表面磁石型モータ
Document Type and Number:
Japanese Patent JP6667084
Kind Code:
B2
Abstract:
A stator core of a stator has a ring-shaped yoke and multiple teeth radially extending from the inner periphery of the yoke and having circumferentially broadened tooth-tip parts at the tip thereof, and windings are wound around the teeth. A rotor is provided with a rotor core, a shaft, magnets, and a rotor resin part. The multiple magnets held on the rotor core are circumferentially arranged along the outer peripheral surface of the rotor core with a predetermined gap from the tooth-tip parts, and the rotor resin part fixes the multiple magnets to the rotor core. Furthermore, each of the magnets is provided with a first main surface facing the outer peripheral surface of the rotor core and a second main surface facing the tooth-tip part. In this case, the first main surface includes a planar part, and the tooth-tip part and the second main surface include arc-shaped curved surfaces concentric with a magnetic pole surface. In addition, the rotor core and the multiple magnets are integrally formed such that the outer peripheries of the second main surfaces are covered by the rotor resin part.
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Inventors:
Toshiyuki Tamamura
Yuichiro Tashiro
Koichi Saito
Yuichiro Tashiro
Koichi Saito
Application Number:
JP2018537064A
Publication Date:
March 18, 2020
Filing Date:
August 03, 2017
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H02K1/22; H02K1/27
Domestic Patent References:
| JP2012228014A | ||||
| JP2001298887A | ||||
| JP1066285A | ||||
| JP2014155372A | ||||
| JP2009247051A | ||||
| JP200448970A |
Foreign References:
| US20020067092 |
Attorney, Agent or Firm:
Kenji Kamada
Koichi Nomura
Koichi Nomura