| 摘要 |
An electrical driving device has three permanent-magnet-excited rotors 3 whose shafts 3S extend through intersections S between a circle 4 and 120 DEG spaced-apart radii 5 which diverge from the centre M of the circle. Each of the cylindrical rotors 3 is associated with three stator poles 7.1, 7.2, 7.3, which are spaced from the cylinder circumference by air gaps 6. Three of these stator poles 7.1 which are situated within the circle 4 are connected by means of yoke irons J1. The stator poles 7.2 and 7.3 situated outside the circle 4 are connected in pairs via yoke bridges J2. These yoke bridges J2 are, in their turn, connected to yoke irons J3, which carry excitation coils 10. At their ends which are remote from the yoke bridges J2 all the yoke irons J3 are magnetically connected via a return yoke J4. The yoke iron J1, the stator poles 7.1, 7.2 and 7.3, the Yoke bridges J2 interconnecting them, the yoke iron J3 and the return yoke J4 consist of solid iron or electric sheet.
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