Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/186767
Kind Code:
A1
Abstract:
This motor is provided with a rotor core that constitutes a tubular form, and a magnet group including first magnets and second magnets that are arranged alternately along the circumference direction of the rotor core. A first magnetic field line produced within a first magnet passes along the radial direction of the rotor core, while a second magnetic field line produced in a second magnet is inclined with respect to the first magnetic field line. The rotor core has an inner-side section located at the radially inner side from the magnet group, and an outer-side section located at the radially outer side from the magnet group. The outer-side section has: a first iron core that covers the first magnets from the radial outer side; and a second iron core that covers, from the radial outer side, the second magnets at least partially along the direction of the center axis of the rotor core.
Inventors:
UEDA TOMOYA (JP)
Application Number:
PCT/JP2020/034773
Publication Date:
September 23, 2021
Filing Date:
September 14, 2020
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/27; H02K1/22
Domestic Patent References:
| WO2014115655A1 | 2014-07-31 |
Foreign References:
| JP2010207067A | 2010-09-16 | |||
| JP2018110487A | 2018-07-12 |
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