Title:
A manufacturing method of a rotor
Document Type and Number:
Japanese Patent JP6214876
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rotor in which the position of a magnet in a slit can be determined accurately while reducing the manufacturing cost by reducing the assembling man-hours of magnet, and which can enhance the motor performance, and to provide a brushless motor and a method of manufacturing a rotor.SOLUTION: A rotor comprises: a rotating shaft; and a columnar rotor core 41 being fixed to the rotating shaft. In the rotor core 41, a slit group having a plurality of slits 44a-44c extending in the circumferential direction and formed to penetrate the rotor core 41 in the axial direction are formed at intervals in the circumferential direction. Each slit 44a-44c is provided with a pair of nonmagnetic resins 15 at both ends in the circumferential direction. A resin magnet 13a-13c is provided between a pair of nonmagnetic resins 15 of each slit 44a-44c.
Inventors:
Masamichi Okubo
Application Number:
JP2013012510A
Publication Date:
October 18, 2017
Filing Date:
January 25, 2013
Export Citation:
Assignee:
Mitsuba Co., Ltd.
International Classes:
H02K1/27; H02K1/22; H02K15/02; H02K21/14
Domestic Patent References:
| JP11262205A | ||||
| JP60250928A | ||||
| JP2012056238A | ||||
| JP2006109683A | ||||
| JP2004336831A | ||||
| JP2013143791A | ||||
| JP2014007928A |
Attorney, Agent or Firm:
Masatake Shiga
Suzuki Mitsuyoshi
Shingo Suzuki
Suzuki Mitsuyoshi
Shingo Suzuki
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