Title:
改良型高速度電気モータ
Document Type and Number:
Japanese Patent JP4144672
Kind Code:
B2
Abstract:
A high speed, brushless, DC motor has a rotor comprising a solid rare earth magnet core magnetized diametrically. The rotor includes a sleeve surrounding the magnet core to radially constrain the core during high speed rotation thereof. The sleeve extends axially in both directions from the core to form a hollow shaft for the rotor. The sleeve is formed of non-magnetic, low electrical conductivity material. Control circuitry is provided including an electronic inverter of a predetermined rating, the control circuitry including means to maintain substantially constant power through the range of motor speeds from a base speed to a maximum speed while maintaining a power factor close to 1.
Inventors:
Howard sea lobat
Peter Andrew Watterson
Peter Andrew Watterson
Application Number:
JP53142598A
Publication Date:
September 03, 2008
Filing Date:
January 23, 1998
Export Citation:
Assignee:
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION
University of Technology Sydney
University of Technology Sydney
International Classes:
H02K1/22; H02K1/27; H02K29/00; H02K5/00; H02K5/16; H02K7/09; H02K21/14; H02P6/06
Domestic Patent References:
| JP5199686A | ||||
| JP6260356A | ||||
| JP8047228A | ||||
| JP4004317A | ||||
| JP5122895A | ||||
| JP61135443A | ||||
| JP64046016A | ||||
| JP59056838A | ||||
| JP62014974U | ||||
| JP2299496A | ||||
| JP58006084A | ||||
| JP6197507A | ||||
| JP8047226A |
Attorney, Agent or Firm:
Takaho Kawawa
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