Patent ID: 7417355
Filing Date: 2008-08-26
Classification: H02K

Abstract:
1. A vehicular tandem type rotary electric machine comprising first and second stator rotor pairs including Lundell-type rotor cores wound with field coils, and stator cores wound with stator coils, which are placed in areas radially outside the Lundell-type rotor cores, respectively; rectifiers placed in areas axially outside the second stator rotor pair and spaced from the first stator rotor pair for rectifying output voltages generated by the stator coils; and a controller independently controlling field currents of the stator rotor pairs, in which the two Lundell-type rotor cores are fixed on a common rotary shaft in an axially adjacent relationship and driven by an on-vehicle engine, wherein: the stator coils of the first and second stator rotor include segments comprising sequentially-joined stator coil structures, respectively, in which segment conductors are inserted into slots of each stator core from one side in an axial direction and have ends that are sequentially connected to each other; and the field coil of the first stator rotor pair has an axial center position deviated from an axial center position of the first stator core to be closer to the second stator rotor pair, and the field coil of the second stator rotor pair has an axial center position deviated from an axial center position of the second stator core to be closer to the first stator rotor pair.