| 摘要 |
PROBLEM TO BE SOLVED: To prevent increase in motor oscillation and noise at a high speed driving by lengthening a distance between bearings and lowering a characteristic oscillation cycle, because a conductor is butted at a core teeth portion corner portion and the conductor is overhung to an outer side in the shaft direction by a large amount, to swell a coil end portion in an axial direction, when a large line is wound around the core teeth portion, and to prevent degradation in insulation at the core teeth portion corner portion by eliminating the concentration of winding stresses. SOLUTION: A spacer in an arc shape is disposed so as to cover the corner of a cross section of a teeth portion, around which the conductive winding is wound to reduce the overhang to the outer side in the axial direction of the conductor positioned at the stator core teeth portion corner portion and to restrain the enlargement of the coil end portion to a minimum, resulting in reduction in the size of the coil end portion in the axial direction, thus providing an electric rotating machine having short distance between the bearings, low oscillation, low noise, small size, and high performance. Moreover, the motor secures the insulation by relaxing the winding stress at the core teeth portion corner portion, thus providing high insulation. COPYRIGHT: (C)2005,JPO&NCIPI
|
