| 摘要 |
An electrical rotating machine having a stator or a rotor with a core that includes a plurality of tapered pole pieces. This machine is a low loss electrical machine that results in improvements such as higher output power, higher torque and higher efficiency. The stator or the rotor with tapered pole pieces may be applied to a power train in automobiles, power tools, and various appliances. The core is constructed by winding an iron-based amorphous magnetic alloy ribbon to form a cylinder-shaped core, then heating, impregnating with resin, and machining the cylinder-shaped core to form a plurality of tapered pole pieces being separated in an alternating manner by a plurality of slots. The cores having an outside diameter in a range of 50 mm-1200 mm, a tapered angle in a range of 10°-45°, and a slot depth in a range of 10 mm-210 mm are advantageous. |
