| 摘要 |
<p>A motor (1, 31) comprising: a. rotor (2, 32) including a permanent magnet type rotor unit (4, 34) having a plurality of permanent magnets (5, 35) and a reluctance type rotor unit (6, 36) having a plurality of magnetic salient pole portions (7, 37) and a plurality of slits (8, 38) for preventing flux leakage, the rotor units (4, 34, 6, 36) being coupled to each other in an axial direction; and a stator (3, 33) for generating a field for driving the rotor (2, 32). Elongated holes (9) or notches (9a) for preventing the short-circuit of magnetic fluxes are arranged near edges of the permanent magnet (5, 35) of the permanent magnet type rotor unit (4, 34). The elongated holes (9) or the notches (9a) are arranged within a range defined so that 0.95 alpha </=θ</=1.05 alpha with alpha =ä(360/S)-Rü/2 (degrees), whereθis an angle formed between a magnetic pole boundary and a center of the elongated hole (9) or the notch (9a) in a forward direction of rotation of the rotor (2, 32) with respect to a center of a rotating shaft, R is an angle formed by a tooth width of the stator (3, 33) with respect to the center of the rotating shaft, P is the number of rotor poles, and the number of stator slots is S=3P/2. <IMAGE> <IMAGE> <IMAGE></p> |
