| 摘要 |
<p>An electronic commutated claw pole motor has an exterior rotor (42) with a shaft (40) and a rotor magnet (62). Said claw pole motor contains a stator (64) which has a first soft ferromagnetic stator pole piece (74) located on its opposite side from the exterior rotor (42). Said stator pole piece is provided with first claw poles (82, 84), projecting toward the exterior rotor (42). The stator has a second soft ferromagnetic stator pole piece (76) located on its inner side in relation to the exterior rotor (42). The second soft ferromagnetic stator pole piece is provided with second claw poles (88, 90) projecting away from the exterior rotor (42) having a larger axial extension (h2) than the first claw poles (82, 84) and projecting in gaps (92) between the first claw poles (82, 84). An axial bearing (44, 46) supports the end (44) of the shaft (40) which faces away from the exterior rotor (42). In order to generate a magnetic force (F) acting upon this bearing, the rotor magnet (62) is displaced in a direction away from the locating bearing (40, 44) relative to the stator (64).</p> |
