| 摘要 |
<p>Provided is a magnetic power transmission device capable of improving the power transmission efficiency and transmission capability while maintaining the merits obtained when performing power transmission by using a magnetic force and reducing the manufacturing cost. The magnetic power transmission d evice (1) includes: an external rotor (11) having a plurality of left and ri ght permanent magnets (11c) arranged in the circumferential direction; an in ternal rotor (12) having a plurality of permanent magnets (12c) arranged in the circumferential direction; and an intermediate rotor (13) having a plura lity of left and right soft magnetic bodies (13d, 13e) arranged in the circu mferential direction. When the left and the right permanent magnets (11c) ar e positioned to oppose to the permanent magnets (12c): if the left permanent magnet (11c) has a polarity different from that of the left side of the per manent magnet (12c), the right permanent magnet (11c) has a polarity identic al to that of the right side of the permanent magnet (12c); and if one of th e soft magnetic bodies (13d, 13e) is positioned between the permanent magnet s (11c, 12c), the other is positioned between the two adjacent permanent mag nets (11c, 12c).</p> |
