Abstract: A rotor for an automotive alternator includes a rotary shaft, first and second magnetic pole cores each having a plurality of magnetic pole claws, a bobbin, a field coil, a plurality of permanent magnets, and a positioning mechanism. The magnetic pole claws of the first magnetic pole core are interleaved with those of the second magnetic pole core. The field coil is wound around the first and second magnetic pole cores via the bobbin. The permanent magnets are interposed between the first and second magnetic pole cores. The positioning mechanism, which is made up of at least one of the rotary shaft, the first and second magnetic pole cores, and the bobbin, functions to position the first and second magnetic pole cores in the circumferential direction of the rotary shaft with intervals between adjacent pairs of the magnetic pole claws of the first and second magnetic pole cores being even.

Abstract: A rotor for an automotive alternator includes a rotary shaft, first and second magnetic pole cores each having a plurality of magnetic pole claws, a bobbin, a field coil, a plurality of permanent magnets, and a positioning mechanism. The magnetic pole claws of the first magnetic pole core are interleaved with those of the second magnetic pole core. The field coil is wound around the first and second magnetic pole cores via the bobbin. The permanent magnets are interposed between the first and second magnetic pole cores. The positioning mechanism, which is made up of at least one of the rotary shaft, the first and second magnetic pole cores, and the bobbin, functions to position the first and second magnetic pole cores in the circumferential direction of the rotary shaft with intervals between adjacent pairs of the magnetic pole claws of the first and second magnetic pole cores being even.

Abstract: A rotor for an automotive alternator includes a rotary shaft, first and second magnetic pole cores each having a plurality of magnetic pole claws, a bobbin, a field coil, a plurality of permanent magnets, and a positioning mechanism. The magnetic pole claws of the first magnetic pole core are interleaved with those of the second magnetic pole core. The field coil is wound around the first and second magnetic pole cores via the bobbin. The permanent magnets are interposed between the first and second magnetic pole cores. The positioning mechanism, which is made up of at least one of the rotary shaft, the first and second magnetic pole cores, and the bobbin, functions to position the first and second magnetic pole cores in the circumferential direction of the rotary shaft with intervals between adjacent pairs of the magnetic pole claws of the first and second magnetic pole cores being even.

Abstract: The output terminal connection structure for a vehicle generator capable of generating a high voltage and a low voltage includes a high voltage output terminal provided in the vehicle generator, a high voltage lead terminal to be connected to the high voltage output terminal, a low voltage output terminal provided in the vehicle generator, and a low voltage lead terminal to be connected to the low voltage output terminal. At least one of the high voltage output terminal, the high voltage lead terminal, the low voltage output terminal, and the low voltage lead terminal is formed in such a shape or a structure that the low voltage lead terminal can be prevented from being connected to the high voltage output terminal.

Abstract: A rotary electric machine, such as an automotive alternator or an automotive engine starter motor, is provided which includes a rotor and a stator. The stator is equipped with an annular stator core which has a plurality of magnetic pole teeth facing inwardly and a stator winding. The stator winding includes conductive portions disposed inside slots each of which is formed between adjacent two of the magnetic pole teeth and connecting portions which connect the conductive portions and extend from the slots to define coil ends. The stator core is formed by bending a laminate of strips which extends substantially straight into an annular shape and machining an inner circumferential surface of the laminate to have a high circularity, thereby permitting an air gap between the rotor and the stator to be minimized to improve the performance of the rotary electric machine.