| 摘要 |
PURPOSE:To improve efficiency by a method wherein an armature coil is arranged independently from other windings, arranged continuously, so as not to be intersected and four pieces of magnets, which is larger than the number of phase of three-phase AC by one, are arranged in the spaces of respective phases while converting the polarities of the same. CONSTITUTION:A plurality of slots 24a is formed on the inner peripheral surface of an armature core 24, forming an armature 22, and armature coils 20 are wound in the slots. The coil 26 is arranged independently from other coils, arranged continuously, so as not to be intersected. A plurality of permanent magnets 34 is arranged on the outer peripheral surface of a rotor core 32 while converting the polarities thereof alternately to form a field. The field is formed by arraying four pieces of permanent magnets, which means a number consisting of the number of phases 3 of 3-phase AC plus one, in every spaces of respective phases of the armature. According to this method, a magnetic field, produced by one set of winding, will never be cancelled by another magnetic field, produced by the other winding, and a magnetic resistance between the armature and the field is constituted so as to be small whereby a rotary armature, having a high efficiency, can be obtained. |
