| 摘要 |
PROBLEM TO BE SOLVED: To provide a static field coil-type synchronous machine which serves both as a magnet that enables the reduction of axial length and the enhancement of high-speed rotating capability and produces high output. SOLUTION: A rotor core 1210 is installed rotatably inside a stator core 1120 in the radial direction, and static yokes 1230 and 1274 and a field coil 1230 are installed so that the static yokes and the filed coil are secured on an end wall of a housing 1911 between the rotor core 1210 and the shaft 1240. A magnetically short-circuiting member (soft magnetic pin) 1281 is inserted into the rotor core 1210 in the axial direction. Magnetic projected portions are formed on the inner circumferential face of the rotor core 1210, with the projected portions at the axially front part and the projected portions at the axially rear part of the rotor core 1210 being displaced from each other by one field pole pitch in the circumferential direction. As a result, short-circuiting flux of a magnet 1280 can be controlled by the current field of the field coil 1230.
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