| 摘要 |
The object of the present invention is to obtain a high performance and low-cost electric motor that simplifies the transfer of the mechanical motion created by the motor to the driven load, requiring none or some mechanical transfer means such as belt/pulley arrangement or a gear box, on applications especially requiring varying torque and speed operations, requiring wide torque-speed range; requiring high torque value at low speeds. In the motor subject to the present invention, which has a structure with external rotor, the stator and rotor are formed by the packaging of magnetic lamination segments that are cut in 180 DEG or smaller angles in order to complete 360 DEG . The rotor yoke (2) of said motor on the inner surface of which a series of permanent magnets (3) are placed with no spaced apart intervals and said permanent magnets (3) are connected with the motor shaft (7) by the rotor body (1) and rotor hub which are made of non-polymeric or non-magnetic metal suitable for injection casting, or directly with the load shaft. |
