Title:
【発明の名称】ブラシレスモータ
Document Type and Number:
Japanese Patent JP2854519
Kind Code:
B2
Abstract:
A brushless motor including: a rotor casing having a cylindrical wall with an opening, the rotor casing holding a magnet therein, the magnet having an exposed portion which is exposed through the opening of the rotor casing; a stator core having drive coils; Hall elements for detecting the magnetic field of the magnet, the Hall elements being arranged outside the cylindrical wall of the rotor casing; a drive circuit applying drive currents to the drive coils in accordance with output signals of the Hall elements; a magnetic flux varying member provided at a point on the cylindrical wall of the rotor casing; and an index signal processing circuit for generating an index signal in accordance with an output signal of one of the Hall elements.
More Like This:
| JP5478117 | motor |
Inventors:
KURITA YUKINOBU
Application Number:
JP3410894A
Publication Date:
February 03, 1999
Filing Date:
February 07, 1994
Export Citation:
Assignee:
SANKYO SEIKI SEISAKUSHO KK
International Classes:
H02K11/00; H02K29/08; H02P6/16; H02K29/00; (IPC1-7): H02K29/08; H02K11/00; H02K29/00; H02P6/16
Domestic Patent References:
| JP197155A | ||||
| JP62125373U | ||||
| JP31672U |
Attorney, Agent or Firm:
Takahide Goto