To provide a rotating electrical machine, capable of suppressing generation of eddy current loss due to a harmonic components of an electric current and capable of improving the strength of a rotor.
The rotating electrical machine 1 has a stator 2 and a rotor 3 rotatable with respect to the stator 2. The rotor 3 has a rotor core 7 formed from a plurality of sheets 7a piled up axially and a plurality of permanent magnets 8 formed on the rotor core 7. A plurality of welds number limit areas 12, surrounding a rotor core 7 circumferentially along the rotor core 7, are arranged axially in line around the outer-peripheral portion of the rotor core 7. In each of the plurality of welds number limit areas 12, the number of circumferential welds of the rotor core 7 is identical to that of the pairs of poles of the rotor 3. Furthermore, the welds in the welds number limit areas 12 adjacent to each other are arranged, being shifted circumferentially along the rotor core 7.
COPYRIGHT: (C)2010,JPO&INPIT
Kazumasa Ito
Hideto Nishimura
Naoki Kojima
| JP200557819A | ||||
| JP2007282358A | ||||
| JP2000295800A |
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
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