JP2014075965A5 - - Google Patents

Description

A rotating electrical machine according to the present invention includes a stator having a stator coil mounted on a stator core, a magnet disposed inside or outside the stator, and a plurality of magnets disposed on the rotor core and the magnet. In a rotating electrical machine including a rotor having a core magnetic pole portion disposed, the rotor includes a first rotor core body and a second rotor core body, and the first rotor core The body includes a plurality of first magnets and a first core magnetic pole portion disposed between the first magnets, and a plurality of the first magnets disposed on the second rotor core body. A second magnet having a magnetizing direction different from that of the magnet and a second core magnetic pole disposed between the second magnets, and the first magnet is positioned at a position corresponding to the first core magnetic pole. Between the first rotor core body and the second rotor core body. It is provided with a gap or non-magnetic member.

Claims (12)

A stator having a stator coil mounted on a stator core, a magnet disposed inside or outside the stator, a plurality of magnets disposed on a rotor core, and a core magnetic pole portion disposed between the magnets. In the rotating electrical machine including the rotor, the rotor includes a first rotor core body and a second rotor core body, and a plurality of first rotor core bodies are arranged in the first rotor core body. 1 magnet and a first core magnetic pole portion disposed between the first magnets, and the second rotor core body has a magnetization direction different from that of the plurality of first magnets disposed in the second rotor core body. A second core magnetic pole portion disposed between the second magnet and the second magnet, and the second magnet is located at a position corresponding to the first core magnetic pole portion. And a gap or a non-magnetic member is provided between the first rotor core body and the second rotor core body. Rotary electric machine characterized by and.   The rotating electrical machine according to claim 1, further comprising positioning means for determining a circumferential position between the first rotor core body and the second rotor core body.   3. The rotating electrical machine according to claim 1, wherein the nonmagnetic member is provided with an abutting portion that abuts against a circumferential side surface of the magnet and the core magnetic pole portion. The rotating electrical machine according to claim 1, any one of 請 Motomeko 3, characterized in that the contact portion of said nonmagnetic member is disposed in the axial position of the rotor core body. The rotating electrical machine according to claim 1, any one of 請 Motomeko 4, characterized in that a gap or member in the central portion in the axial direction of the stator core. From claim 1, characterized in that the axial length of the first rotor core body and the second rotor core body is configured larger than the axial length of the stator core of 請 Motomeko 5 The rotating electrical machine according to any one of claims. A third rotor core in which magnets having alternately different polarities in the circumferential direction are arranged between the first rotor core body and the second rotor core body instead of the gap or the nonmagnetic member. And the axial length of the first rotor core body, the second rotor core body, and the third rotor core body is greater than the axial length of the stator core. The rotating electrical machine according to claim 1, wherein: The magnet disposed in front Symbol first rotor core body and the second rotating rotor core body is fixed to the surface before Symbol first rotor core body and the second rotating rotor core body the rotating electrical machine according to claim 1, any one of 請 Motomeko 7, characterized in that is. Predeployment Symbol First rotor core body and the second rotating said magnets disposed trochanter core body is embedded in the second round rotor core body before and Symbol first rotor core body the rotating electrical machine according to claim 1, any one of 請 Motomeko 7, characterized in that it is. The core pole portion before Symbol first rotor core body and the second is of times the magnets disposed trochanter core body before Symbol first rotor core body and the second rotating rotor core body the rotating electrical machine according to claim 1, any one of 請 Motomeko 7, characterized in that with embedded into the hole formed radially and is arranged to have the same polarity in the circumferential direction. Magnetic member is buried in the hole portion in which the magnet is not disposed in the hole formed radially in the core magnetic pole portion before Symbol first rotor core body and the second rotating rotor core body The rotating electrical machine according to claim 10, wherein The stator coil consists of 3N phase alternating-current windings, the stator coils of the 3N-phase AC windings N sets of wiring are insulated electrically from each other those 3-phase connection as one set, the connection of the front Symbol stator coils are connected to different N sets of the drive circuit, before Symbol before Symbol stator co included in the coil group of each phase of the focal lines of the stator coil yl is, position of phase with each other retardation is disposed approximately 60 / N ° intervals in electrical angle in the circumferential direction of the stator, for controlling the current phase difference of phase between the binding wire before Symbol stator coils in the same about 60 / N ° the rotating electrical machine according to claim 1, any one of 請 Motomeko 7, characterized in that.