Title:
LOW-NOISE MECHANISM FOR SR MOTOR
Document Type and Number:
Japanese Patent JPH1141884
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain a low-noise mechanism which reduces vibration, by which the displacement of a stator during the operation of a motor is reduced with high efficiency, and by which the generation of a noise due to the displacement is prevented effectively. SOLUTION: Teeth 1A are installed at equal intervals on the inner circumferential face of a stator core 1. Protrusion parts 1B which are used to fix a stator yoke 2 are formed on the corresponding outer circumferential face in recessed parts between the teeth 1A. Thereby, even by using the stator yoke 2 which uses a low-cost thin plate material and whose rigidity is comparatively small, the stator core can be fixed and held, and vibration during the operation of a motor can be suppressed effectively. As a result, it is possible to prevent a noise from being generated.
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Inventors:
KURIHARA HIROYUKI
NAKAYAMA YUKIO
NAKAYAMA YUKIO
Application Number:
JP20214397A
Publication Date:
February 12, 1999
Filing Date:
July 11, 1997
Export Citation:
Assignee:
NIPPON ELECTRIC IND
International Classes:
H02K5/24; H02K19/10; (IPC1-7): H02K19/10; H02K5/24
Attorney, Agent or Firm:
Takeo Masuda