| 摘要 |
A rotating electric machine includes an armature, a controller and a rotor. The armature includes an armature core and a multi-phase coil. The controller controls energization of the multi-phase coil. The rotor includes magnetic pole portions that are circumferentially spaced from one another, inter-pole permanent magnets each of which is interposed between one circumferentially-adjacent pair of the magnetic pole portions, and a bypass yoke portion located on the opposite radial side of the magnetic pole portions and the inter-pole permanent magnets to the armature. The number of the magnetic pole portions is equal to that of magnetic poles to be created in the armature core upon energization of the multi-phase coil. A plurality of magnetic circuits are formed by the armature core, the magnetic pole portions, the inter-pole permanent magnets and the bypass yoke portion; each of the magnetic circuits passes through one circumferentially-adjacent pair of the magnetic pole portions. |
| 主权项 |
1. A rotating electric machine comprising:
an armature including an armature core and a multi-phase coil, the armature core having a plurality of slots formed therein, the multi-phase coil being wound on the armature core so as to be received in the slots of the armature core; a rotor disposed so as to radially face the armature through a first radial gap formed therebetween; and a controller that controls energization of the multi-phase coil, wherein the rotor includes a plurality of magnetic pole portions, a plurality of inter-pole permanent magnets and a bypass yoke portion, the magnetic pole portions are spaced from one another in a circumferential direction of the rotor, each of the inter-pole permanent magnets is interposed between one circumferentially-adjacent pair of the magnetic pole portions, the bypass yoke portion is located on an opposite radial side of the magnetic pole portions and the inter-pole permanent magnets to the armature, between the bypass yoke portion and the magnetic pole portions and the inter-pole permanent magnets, there is formed a second radial gap, the number of the magnetic pole portions is equal to the number of magnetic poles to be created in the armature core upon energization of the multi-phase coil, the inter-pole permanent magnets are circumferentially magnetized and arranged such that for each circumferentially-adjacent pair of the inter-pole permanent magnets, the magnetization directions of the two inter-pole permanent magnets of the pair are opposite to each other, and a plurality of magnetic circuits are formed by the armature core, the magnetic pole portions, the inter-pole permanent magnets and the bypass yoke portion, each of the magnetic circuits passing through one circumferentially-adjacent pair of the magnetic pole portions. |
