Title:
インナーロータマグネット型DCブラシレスモータ
Document Type and Number:
Japanese Patent JP4686675
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a high precision motor without eccentric unbalance of a rotor, even in an inner rotor magnet type motor with an outside diameter ϕwhich is as small as about 15 mm or less. SOLUTION: After the rotor has been assembled for setting balance to compensate for eccentric unbalance of a cylindrical magnet of the rotor, both ends of a cylindrical type rotor magnet where a rotating shaft is provided are held with the rotating shaft defined as the center axis of the process, and the external circumferential surface of the rotor magnet is ground into a perfect circular shape for the purpose of alignment with a cylinder grinding apparatus, in view of correcting the eccentric unbalance portion.
Inventors:
Hirai Kazutoshi
Application Number:
JP2000339436A
Publication Date:
May 25, 2011
Filing Date:
November 07, 2000
Export Citation:
Assignee:
Namiki Precision Jewel Co., Ltd.
International Classes:
H02K1/22; H02K15/16; H02K1/27; H02K29/00
Domestic Patent References:
| JP11155259A | ||||
| JP8163814A | ||||
| JP2142338A | ||||
| JP63210437A |