Vehicle use AC generation system, vehicle use AC generator used therefor and drive force transmission system used therefor

In a vehicle use AC generation system which includes a vehicle use AC generator coupled to a crank pulley shaft of an engine via a pulley, the vehicle use AC generator being provided with a rotor having magnetic poles and a field winding for magnetizing the magnetic poles, a stator which is disposed being spaced apart with a predetermined gap with respect to the rotor and has a stator winding for generating an AC voltage through magnetization of the magnetic poles, a shaft integral with the rotor, a motive force transmission mechanism including a transmission for increasing speed at the side of the pulley and a liquid cooling type cooling means for cooling the motive force transmission mechanism, wherein the shaft integral with the rotor and the pulley are coupled via the motive force transmission mechanism.

In a vehicle use AC generation system which includes a vehicle use AC generator coupled to a crank pulley shaft of an engine via a pulley, the vehicle use AC generator being provided with a rotor having magnetic poles and a field winding for magnetizing the magnetic poles, a stator which is disposed being spaced apart with a predetermined gap with respect to the rotor and has a stator winding for generating an AC voltage through magnetization of the magnetic poles, a first shaft to which the pulley is provided, a second shaft integral with the rotor, a motive force transmission mechanism including a transmission for increasing speed at the side of pulley and a bracket provided with the motive force transmission mechanism, wherein the bracket being provided with a gear casing and a stationary portion for the engine in the motive force transmission mechanism, the first shaft to which the pulley is provided is disposed within the bracket and at equivalent position with the second shaft when seen from the crank pulley shaft or rather at the side of the engine from the second shaft and the first shaft to which the pulley is provided and the second shaft are coupled via the motive force transmission mechanism provided at the bracket.

In a vehicle use AC generator coupled to a crank pulley shaft of an engine via a pulley, the vehicle use AC generator being provided with a rotor having magnetic poles and a field winding for magnetizing the magnetic poles, a stator which is disposed being spaced apart with a predetermined gap with respect to the rotor and has a stator winding for generating an AC voltage through magnetization of the magnetic poles, a first shaft to which the pulley is provided, a second shaft integral with the rotor, a motive force transmission mechanism including a transmission for increasing speed at the side of pulley and a bracket provided with the motive force transmission mechanism, wherein the bracket being provided with a gear casing and a stationary portion for the engine in the motive force transmission mechanism, the first shaft to which the pulley is provided is disposed within the bracket and at equivalent position with the second shaft when seen from the crank pulley shaft or rather at the side of the engine from the second shaft and the first shaft to which the pulley is provided and the second shaft are coupled via the motive force transmission mechanism provided at the bracket.

In a vehicle use AC generator including a rotor constituted by a pair of opposingly disposed claw shaped magnetic poles at each of top portions of which a plurality of claw portions are formed and a field winding for magnetizing the claw shaped magnetic poles and being secured to a rotor shaft, permanent magnets for auxiliary excitation disposed between the claw shaped magnetic poles in the rotor, a stator which is disposed being spaced apart with a predetermined gap with respect to the rotor and has a stator winding for generating an AC voltage through magnetization of the magnetic poles, a liquid cooling type cooling means for cooling heat generation from the stator and a bracket, wherein a pulley shaft provided with a pulley is provided independent from the rotor shaft, and the pulley shaft is elongated in the axial direction exceeding the bracket.

In a vehicle use AC generator including a rotor constituted by a pair of opposingly disposed claw shaped magnetic poles at each of top portions of which a plurality of claw portions are formed and a field winding for magnetizing the claw shaped magnetic poles and being secured to a rotor shaft, permanent magnets for auxiliary excitation disposed between the claw shaped magnetic poles in the rotor, a stator which is disposed being spaced apart with a predetermined gap with respect to the rotor and has a stator winding for generating an AC voltage through magnetization of the magnetic poles, a liquid cooling type cooling means for cooling heat generation from the stator and a bracket, wherein a pulley shaft provided with a pulley is provided independent from the rotor shaft, the pulley shaft and the rotor shaft are coupled via a transmission provided at the bracket as well as the pulley shaft is elongated in the axial direction exceeding the bracket.

In a vehicle use AC generator including a rotor constituted by a pair of opposingly disposed claw shaped magnetic poles at each of top portions of which a plurality of claw portions are formed and a field winding for magnetizing the claw shaped magnetic poles and being secured to a rotor shaft, permanent magnets for auxiliary excitation disposed between the claw shaped magnetic poles in the rotor, a stator which is disposed being spaced apart with a predetermined gap with respect to the rotor and has a stator winding for generating an AC voltage through magnetization of the magnetic poles, and a liquid cooling type cooling means for cooling heat generation from the stator, wherein as a material of the rotor a material having a tensile strength of about 500 MPa is used, as the permanent magnet a neodymium magnet is disposed between the claw shaped magnetic poles, a pulley shaft being provided independent from the rotor shaft and being designed to be rotated in the opposite direction from the rotor shaft.

A vehicle use AC generator being provided with a rotor including a pair of claw shaped magnetic poles and a field winding wound radially inside with respect to the pair of claw shaped magnetic poles and a stator in which a stator winding is wound on a stator iron core and being further provided with a drive force transmission shaft which is provided independent from a rotary shaft of the rotor and transmits a drive force to the rotary shaft after increasing the rpm.

A vehicle use AC generator use drive transmission system for transmitting a drive force of an engine via a belt to a vehicle use AC generator which is provided with a rotor including a pair of claw shaped magnetic poles and a field winding wound radially inside with respect to the pair of claw shaped magnetic poles and a stator in which a stator winding is wound on a stator iron core being provided with an idler pulley which transmits the rpm of an output shaft of the engine to a rotary shaft of the rotor after speed increasing thereof.