Title:
A SWITCHING PATTERN AC INDUCTION MOTOR
Document Type and Number:
WIPO Patent Application WO/2003/069762
Kind Code:
A1
Abstract:
Both the stator core and the roter core of a switching pattern AC induction motor are fabricated by weak magnetic substance laminations or ferrite material, etc., both of which have corresponding frequency characteristic. The rotor is a squirrel cage rotor. Switching pattern excitation is adopted in the stator pole, of which the excitation voltage is sine wave pulse width modulated or sine wave pulse amplitude modulated within he frequency range of voice and ultrasonic. Under the condition of the same power output, the present motor reduces its size and mass to a fraction of or tenth of that of an ordinary one. Meanwhile, it reduces the cost of manufacture. It realizes stepless speed regulating from zero to several thousand rpm while keeping well mechanical characteristic performance.
Inventors:
HUANG YOUGUO (CN)
HUANG WEI (CN)
HUANG WEI (CN)
Application Number:
PCT/CN2003/000017
Publication Date:
August 21, 2003
Filing Date:
January 09, 2003
Export Citation:
Assignee:
HUANG YOUGUO (CN)
HUANG WEI (CN)
HUANG WEI (CN)
International Classes:
H02K3/28; H02K17/12; H02K17/16; (IPC1-7): H02K17/16; H02K1/16; H02K1/26
Foreign References:
| US5869915A | 1999-02-09 | |||
| US5565752A | 1996-10-15 | |||
| US5911453A | 1999-06-15 | |||
| EP0058352A1 | 1982-08-25 |
Other References:
See also references of EP 1482624A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (Huibin Building N° 8 Beichen Dong Stree, Chaoyang District Beijing 1, CN)
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