Title:
PERMANENT MAGNET MOTOR
Document Type and Number:
Japanese Patent JP3818339
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an adaptive motor by widening the selection width of magnetic flux density and cost, in a permanent magnet motor.
SOLUTION: In an inner rotor type of permanent magnet motor, when embedding permanent magnets 11 and 12 which are singular for each pole in matching with the number of poles, so as to make a rotor core 10, the permanent magnets 11 of the same material (rare-earth magnet) are embedded in the magnetic poles of the same polarity, and moreover the permanent magnets 12 of different material(ferrite magnet) are embedded singular for each pole in the magnetic poles of different polarities. The permanent magnets 11 and 12 are rectangular in cross section and are arranged as S poles along the periphery of the core, and holes (flux barriers) 13 and 14 are made at both ends of the permanent magnets 11 and 12.
More Like This:
Inventors:
Kenji Narita
Takashi Suzuki
Hiroyuki Okudera
Yuji Kawai
Yuji Soma
Koji Kasai
Yoshifumi Fukuda
Takashi Suzuki
Hiroyuki Okudera
Yuji Kawai
Yuji Soma
Koji Kasai
Yoshifumi Fukuda
Application Number:
JP27505697A
Publication Date:
September 06, 2006
Filing Date:
September 22, 1997
Export Citation:
Assignee:
Fujitsu General Limited
International Classes:
H02K1/02; H02K1/27; H02K15/03; H02K21/14; H02K29/00; (IPC1-7): H02K1/27; H02K1/02; H02K15/03; H02K21/14; H02K29/00
Domestic Patent References:
| JP9009537A | ||||
| JP7231589A | ||||
| JP7336980A | ||||
| JP8126279A | ||||
| JP8163849A | ||||
| JP9140076A | ||||
| JP5316671A |
Attorney, Agent or Firm:
Takuya Ohara