| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamo-electric machine for greatly reducing the leakage magnetic flux of a q-axis section, when magnetizing a variable magnetic force magnet using a d-axis current, uniformizing a magnetization distribution of the variable magnetic force magnet, and improving the efficiency, reliability and manufacturing properties over a wide range of operation. SOLUTION: A rotor 1 is constituted of a rotor iron core 2, the variable magnetic force magnet 3 and a fixed magnetic force magnet 4, and the variable magnetic force magnet 3 and a short-circuiting coil. The short-circuiting coil 8 is constituted, by coating or disposing a conductive material to a surface, in parallel with the center line of the axis of rotation on four side faces, in parallel with a magnetization direction of the variable magnetic force magnet 3, by coating or disposing a conductive material to all the surfaces of the fixed magnetic force magnet of the fixed magnetic force magnet 4, and a side face in parallel with the magnetization direction, or a surface in parallel with the center line of the axis of rotation out of four side faces, in parallel with the magnetization direction, and by connecting conductive materials of the variable magnetic force magnet and the fixed magnetic force magnet. Thus, a magnetic field (leakage magnetic field) A3 acting on the fixed magnetic force magnet and an outer peripheral side of the q axis can be offset. COPYRIGHT: (C)2011,JPO&INPIT |
