发明名称 |
Electromagnetic motor of the finite rotational type. |
摘要 |
<p>An electromagnetic motor of the finite rotational type has an improved rotor-returning mechanism for exerting a magnetic force to return its rotor to the initial angular position in a non-excited condition. The rotor-returning mechanism is comprised of a permanent magnet fixedly mounted on a stator and a permanent magnet mounted around the rotor. The permanent magnets are arranged such that, a magnetic attractive force generated between the permanent magnets functions to return the rotor to the initial angular position. The rotor-returning mechanism can be constitued by first and second ring-shaped permanent magnets mounted on the rotor. The N and S poles of the first magnet are offset in a the circumferential direction from those of the second magnet so as to generate a magnetic torque for returning the rotor to the initial angular position. <IMAGE></p> |
申请公布号 |
EP0543105(A1) |
申请公布日期 |
1993.05.26 |
申请号 |
EP19920115848 |
申请日期 |
1992.09.16 |
申请人 |
HARMONIC DRIVE SYSTEMS INC. |
发明人 |
MARUYAMA, TOSHIKI;AKAHANE, AKIRA;ITO, YOSHINORI |
分类号 |
H02K33/00;H01F7/14;H02K26/00;H02K37/14 |
主分类号 |
H02K33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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