| 摘要 |
PROBLEM TO BE SOLVED: To attain high energy conversion efficiency, while achieving high output, with a simple configuration.SOLUTION: A movable body 120 includes a cylindrical magnet 123 having N pole faces and S pole faces alternately, on the peripheral surface, in the circumferential direction. A fixed body 110 includes the same number of pole teeth 115b, 116b as those of the N pole faces and S pole faces, arranged over the circumferential direction while facing the peripheral surface of the magnet 123, and a coil 114b supplied with an AC current of substantially same frequency as the resonance frequency of the movable body 120, and exciting the pole teeth 115b, 116b with polarities different alternately in the circumferential direction. The movable body 120 is held rotatably by the fixed body 110 with a position CL2, where the center position CL1 of the pole teeth 115b, 116b in the circumferential direction faces the switching position of the pole face of the magnet 123, as a rotation reference position.SELECTED DRAWING: Figure 5 |
