Abstract: In a method for producing a stator of an alternating current dynamo-electric machine, a laminated assembly with a roughly rectangular parallelopiped shape is produced, and a stator coil assembly is disposed in slots of the laminated assembly. Thereafter, a cylindrical stator core is produced by bending the laminated assembly. The stator coil assembly can thereby be easily disposed in the slots at a higher density, and damage to the conductors of the stator coil assembly can be prevented.

Abstract: An alternator for motor vehicles having a housing for holding a stator between front and rear brackets comprising side mounting sections formed integrally with the front and rear brackets and having mounting holes to be directly mounted to an engine by mounting tools, wherein each mounting hole comprises at least three U-groove holes formed by a trimming die, provided through in a direction perpendicular to an axial direction of a rotary shaft of the alternator, and are opened in the same axial direction as the rotary shaft, the three holes being opened alternately in opposite directions one by one; and wherein at least one of the side mounting sections has positioning holes for positioning circumferentially the front and rear brackets provided through the mounting holes in the axial direction of the rotary shaft.

Abstract: A dynamoelectric machine rotor comprising a rotary shaft; a field core member engaged with the rotary shaft; a field coil wound on the field core member through a bobbin; and an outer circumferential tape which is wound on an outer circumference of the field coil to prevent the field coil from unwinding; wherein the outer circumferential tape includes a substrate sheet which is provided with at least one of a recess and a projection.

Abstract: To perform the change-over smoothly between a uniform velocity mode and an acceleration mode and to relieve a shock at the time of changing-over the velocity, there are provided, in an auxiliary machine driving apparatus, a plurality of planet gears (2) rotatably supported on a carrier (21) connected to an input shaft (6), an internal gear (3) which meshes with the outer circumferences of the respective planet gears (2) and rotatably supported on a stationary portion, an electromagnetic powder brake (50) for connecting/disconnecting the internal gear (3) to/from the stationary portion, an output shaft (4) having a sun gear (41) which meshes with the inner circumferences of the respective planet gears (2) so as to be rotatably supported thereby, and a one-way clutch (8) provided between the carrier (21) and the output shaft (41).

Abstract: An alternating current generator for a vehicle, in which durability is improved, magnetic fluxes are prevented from leaking, and noises are reduced. In the alternating current generator, a ring made of a steel material is disposed so as to abut against field core claws and on the outer peripheral side of a field winding. Resin permanent magnets which are molded onto the ring are disposed between the field core claws so as to abut against the field core claws, respectively.

Abstract: A bracket 7 is composed of a casing 8 having a journal 8b at the center thereof and an annular flange 9 having a mount 9c projecting radially outwardly from the outer periphery thereof and coupled with the outer periphery of the casing 8, the casing 8 and the annular flange 9 being divided in the axial direction of a rotary shaft 2a. With this arrangement, there can be obtained an AC generator for vehicle the cost of which can be reduced when a new bracket is made.

Abstract: An object of the present invention is to provide a dynamoelectric machine that can be manufactured merely by adding simple work without the necessity of increasing the number of parts and that is characteristic of a minimized electromagnetic sound.Included are a pair of field cores 12 having a plurality of claw-like magnetic poles 12a on the outer circumference thereof and being arranged so that the claw-like magnetic poles 12a can alternately mesh with one another, a coil frame 14 caught in the pair of field cores 12, a field coil 13 wound about the coil frame 14, and varnish layers 18 interposed between the field cores 12 and coil frame.

Abstract: A vehicle AC generator having a rotor located with in a main unit of the generator and journaled at a rotary shaft includes a rectifier unit 21, including a plurality of diodes, a circuit board, and positive-electrode and negative-electrode side cooling plates, for rectifying an AC current. A rear bracket covers at least one of the cooling plates. Preferably, the diodes are soldered to the cooling plates, which are formed in an arcuate-belt shape. Diode leads oppose each other diametrically; connection terminals of the circuit board are collectively spot-welded. The cooling plate is provided with radial cooling fins, allowing air to flow smoothly and, thus, cooling at a relatively high efficiency. The rectifier unit is mounted in the rear bracket, the cooling plate is directly connected to the bracket, and its heat is radiated therefrom. The diodes are arranged such that they overlap diametrically in the generator, allowing its axial length to be reduced.

Abstract: A cooling fan for an AC generator of a motor vehicle implemented in light weight and having a high cooling capability with generation of noise being suppressed to a minimum. The cooling fan is composed of a metallic base plate, blade members of a synthetic resin material fitted on elongated core members each having a small width and formed by bending projecting portions of the base plate and a fan guide fixedly secured to the core members at top end thereof by welding.

Abstract: A voltage regulating circuit is provided in a single mold package, which is attached to the case directly or by a heat conductive material such that it is sandwiched between the case of a voltage regulator and a heat sink, conductors which serve as internal wirings and form terminals are insert-molded with the case of the voltage regulator and the brush holder to be superimposed upon the case of the voltage regulator, out of the terminals formed in the conductors, specific terminals on respective sides are aligned, and the brush holder is installed in the case of the voltage regulator in such a manner that they are superimposed upon each other so that electrical connection of these elements is effected.

Abstract: Phase coil lead wires of a vehicle-mounted alternator with two three-phase star connections are led almost in parallel out of the armature in an axial direction, welded to lead wire connection parts of insert terminals of a circuit board, and connected in parallel to form the star connections by way of the insert terminals. The star connections are achieved in a solderless manner, without twisting or bending the phase coil lead wires. Consequently, there is no possibility of injuring the lead wires due to applications of large stress.

Abstract: A vehicle alternating-current generator control device having a single in-line molded package type control component with its leads arranged on one side. Disposed on the control component is an extension adapter with its ends connected to the leads of the control component and other ends connected to conductor links. A holder designed for an open-type control component is thus used for a single in-line molded package type control component.

Abstract: A vehicular alternating current generator having a base 1 attached with at least one of a brush holder 2 and a voltage regulator and a condenser 5 attached to the base for preventing an electric noise, wherein a main body of the condenser is isolated from an outside atmosphere by a resin 13 and is disposed in a condenser accommodating body 11 while connecting leads 5a of the condenser are exposed to the outside of the condenser accommodating body and a holding portion 10 is formed in the base for accommodating the condenser accommodating body.