| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To increase a torque between a first rotor and a second rotor without supplying a rotor conductor with power, while suppressing the drop of a torque between the stator and the second rotor, with a small quantity of permanent magnets. <P>SOLUTION: A rotor 18 on the output side includes: a plurality of permanent magnets 33; and a rotor core 53. The permanent magnets are arranged in its circumferential direction in a state of being exposed at its inner perimetrical face opposed to a rotor 28 on the input side and their magnetic poles alternate in its circumferential direction. The rotor core is provided ranging from its coupling face with the permanent magnets 33 to its peripheral face opposed to a stator 16, in the radial direction where the rotor 28 on the input side and the stator 16 face each other. The magnetic flux of the permanent magnet 33 acts on the rotor 28 on the input side, and also acts on the stator 16 via a rotor core 53. The rotor 18 on the output side is provided with an air-gap 54 for suppressing leaked magnetic flux that turns passing through the rotor core 53 between permanent magnets 33 adjacent to each other in its circumferential direction, ranging from the vicinity of the adjoining section of the fellow permanent magnets 33 to the vicinity of the peripheral face opposed to the stator 16, in its radial direction. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
