Title:
ELECTROMAGNETIC ACTUATOR AND SECTOR SWITCH SYSTEM
Document Type and Number:
Japanese Patent JP2000287432
Kind Code:
A
Abstract:
To make it possible to control a rotor in its operational speed easily in an electromagnetic actuator.
A permanent magnet 13a is mounted on a stator 6 on the side of a second face 6h opposite to a first face 6g thereof. The permanent magnet 13a is rotated eccentrically so that the magnetic force of the permanent magnet 13a has an influence on the magnetic pole part 6d of the stator 6. When a coil (L) is fed with electricity and magnetic pole parts 6c and 6d of the stator 6 are magnetized, the magnetic force of the magnetic pole part 6d is adjustable by a relative position of the permanent magnet 13a and the stator 6, and the speed of the rotor 1 in movement can be adjusted.
Inventors:
OISHI SEIICHI
Application Number:
JP9293299A
Publication Date:
October 13, 2000
Filing Date:
March 31, 1999
Export Citation:
Assignee:
SEIKO PRECISION KK
International Classes:
G03B9/08; H02K7/14; H02K21/14; H02K37/16; (IPC1-7): H02K37/16; G03B9/08; H02K7/14; H02K21/14
Attorney, Agent or Firm:
Kazuko Matsuda
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