Title:
SEPARATION TYPE ROTATING APPARATUS
Document Type and Number:
Japanese Patent JPH03226256
Kind Code:
A
Abstract:
PURPOSE: To prevent mechanical abrasion to prolong the lifetime by providing outside a case coils of which the number of poles are twice the number of poles of a permanent magnet having a predetermined number of poles which rotate inside a sealed cased and applying electric power thereto to detect the positions and the rotation of the permanent magnets. CONSTITUTION: A permanent magnet 6 having a predetermined number of poles is rotatably supported to the bottom part of a sealing container 5, and for instance, a rotary vane blow, a blower fan and the like are fitted to a rotary shaft not illustrated to stir a fluid 7. On a supporting base board 1 on the lower side of the container 5, a housing 9 with built-in control part 4 and rotary driving part 2 is closely disposed. The rotary driving part 2 is provided with the coils 3 of which the number is twice that of the permanent magnet 6 and the hole devices 8 of the half of the number of the coils. A control part 4 turns on and off the power source of the coils 3 by the output signal of the Hall devices 8, thereby rotating the permanent magnet 6 in the predetermined direction.
Inventors:
KIMU IYON RAA
Application Number:
JP32074689A
Publication Date:
October 07, 1991
Filing Date:
December 12, 1989
Export Citation:
Assignee:
KIMU IYON RAA
International Classes:
H02K29/08; H02K1/27; H02K7/14; (IPC1-7): H02K1/27; H02K7/14; H02K29/08
Attorney, Agent or Firm:
Nobuyuki Iida