Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1987-09-15
1988-07-05
Ro, Bentsu
Electricity: motive power systems
Switched reluctance motor commutation control
H02P 602
Patent
active
047557281
ABSTRACT:
A single-semiconductor motor fan comprises a cylinder; a fixed armature with the central portion fitted over the lower end of the outer periphery of the cylinder and having a plurality of salient poles; a plurality of single-phase armature coils mounted on the armature; bearings fixed on the inner periphery of both ends of the cylinder; a rotary shaft rotatably supported by the bearings; a cup-shaped rotor fixed on the upper end of the rotary shaft; an annular magnet fixed on the inner surface of the rotor and magnetized into N and S poles having the same pitch as those of the salient poles, the N and S magnetic pole surfaces facing the salient pole surfaces with a space therebetween; a radial fan composed of a plastic cylinder fitted over a protruding portion of the rotor and a plurality of plastic plates extending radially outwardly of the cylinder, the height of the radial fan not exceeding the height of the protruding portion of the rotor; a position detecting element for detecting the position of the magnet of the rotor and producing a single-phase position detecting signal; an energization controlling circuit for energizing the armature coil and producing a unidirectional torque by the position detecting signal; and a self starting means for producing an output torque at a dead point by virtue of a cogging torque.
REFERENCES:
patent: 4164690 (1979-08-01), Muller et al.
patent: 4325095 (1982-04-01), Hart
patent: 4360751 (1982-11-01), Arnold, Jr. et al.
patent: 4459087 (1984-07-01), Barge
patent: 4504751 (1985-03-01), Meier
patent: 4514666 (1985-04-01), Suzuki
patent: 4553075 (1985-11-01), Brown et al.
patent: 4563622 (1986-01-01), Deavers et al.
LandOfFree
Single-phase semiconductor electric motor and fan using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single-phase semiconductor electric motor and fan using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single-phase semiconductor electric motor and fan using the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2334246