Abstract: In a vehicle electric rotating machine having a power section formed of a pair of inverter modules of switching elements and diodes connected in parallel thereto, and a control circuit section that controls mentioned power section, there are separately located the control circuit section on the upstream side, and the power section on the downstream side; as well as a through hole is formed in mentioned control circuit section so that mentioned cooling air flows linearly through mentioned power section.

Abstract: In a vehicle power supply system including a battery, an inverter unit for converting DC electric power of the battery into AC electric power and supplying it to a rotating electric machine to drive it, an AC wiring line for connecting the rotating electric machine and the inverter unit, and a DC wiring line for connecting the inverter unit and the battery, the inverter unit is placed in a vicinity of the battery so that the DC wiring line becomes shorter than the AC wiring line. By this, a voltage drop due to the DC wiring line is reduced, and a torque characteristic of the rotating electric machine can be improved.

Abstract: The present invention provides a dynamoelectric rotor enabling electromagnetic noise to be reduced by linking a facing tip end portion and root end portion of adjacent claw-shaped magnetic poles by a linking member and placing a field winding in contact with an inner peripheral surface of the claw-shaped magnetic poles in an electrically-insulated state so as to suppress vibration of the claw-shaped magnetic poles effectively. In the present invention, a tip end portion and a root end portion of adjacent claw-shaped magnetic poles are linked by a linking structure, and a field winding is wound onto a boss portion so as to have a larger diameter than a root inside diameter of the claw-shaped magnetic poles and is placed in contact with an inner peripheral surface of at least one of the claw-shaped magnetic poles with an insulating member interposed.

Abstract: A hybrid-excited rotating machine comprising: a stator winding 12 of a multi-phase Y-connection; a plurality of rotor magnetic poles 21, 22, 23, 24, 25, 26, 27, 28 fixed on a rotor shaft 3 at a predetermined spacing in the circumferential direction and confronting the inner circumference of said stator 1 through a air gap; a plurality of permanent magnets 51, 52, 53, 54, 55, 56, 57, 58 fixed at substantially central portions of said circumferential direction of said individual rotor magnetic poles and magnetized in the radial direction of said rotor shaft; and a plurality of field windings 61, 62, 63, 64, 65, 66, 67, 68 wound individually on said rotor magnetic poles.

Abstract: Claw-shaped magnetic poles are alternately disposed along the rotation plane of a rotor of an electric rotating machine, and a permanent magnet is disposed between the claw-shaped magnetic poles. Surface of the permanent magnet is coated with a coating layer. The coating layer is composed of a anticorrosive material performing sacrificial anticorrosion (metal flake in a coating film rusts prior to a matrix resulting in protection of the matrix) such as inorganic material containing zinc and a film of the anticorrosive material is formed by spraying. Ionization tendency of zinc is larger than that of iron composing the permanent magnet, and the permanent magnet is difficult to be rusted owing to the sacrificial anticorrosion. Consequently, anticorrosion of the permanent magnet disposed between the claw-shaped magnetic poles is improved.

Abstract: A rear-end bearing accommodating portion that has a floored cylindrical shape is formed integrally on a rear bracket. A brush apparatus is mounted to the rear bracket by mounting a slinger portion onto an end portion of a shaft so as to cover slip rings. A rectifier is mounted to the rear bracket in close proximity to the rear-end bearing accommodating portion and the slinger portion. A rolling bearing is configured into a creep preventing bearing in which a resin band is mounted into a ring-shaped recessed groove that is recessed into an outer circumferential surface of an outer ring. A first slit is disposed through the slinger portion so as to be positioned so as to face downward when mounted to a vehicle and so as to communicate between an internal portion and an external portion of the slinger portion.

Abstract: A large number of ventilating apertures that have a circular cross section are disposed through the heatsink so as to extend from an air intake apertured surface to an air discharge apertured surface so as to have aperture directions that are parallel to each other and parallel to an element mount surface, and the heatsink is disposed such that the air intake apertured surface faces an air intake aperture and the aperture directions of the ventilating apertures are aligned in a direction of flow of a cooling airflow.

Abstract: A welding set and a welding method that suppresses the unnecessary magnetization of a permanent magnet member by a welding current when welding one metal member including a permanent magnet member and the other metal member together are obtained. The welding set is provided with a work retaining part 3 that retains a work 14; a pressure device 4 located over the work retaining part 3 with a work-providing space interposed; a first welding electrode 8 mounted on a moving part 4a of the pressure device 4; a second welding electrode 10; and a welding transformer 11 that supplies a welding current to both of the welding electrodes 8, 10. Both of the welding electrodes 8, 10 are located on one end side of the work 14 with respect to one metal member and the other metal member respectively, as well as are located so that there is no permanent magnet member 18 between respective abutment terminal of one metal member and the other metal member.

Abstract: [Problem] In a vehicular rotating electrical machine apparatus mounted in an electric vehicle or a hybrid electric vehicle, a rotating electrical machine apparatus in which a rotating electrical machine and an inverter unit to control the rotating electrical machine are integrated is miniaturized, and its torque characteristic and efficiency are improved. [Means for Resolution] Since an inverter unit 4 is cooled by cooling air forcibly formed by a cooling fan 28, the inverter unit 4 is efficiently cooled. Then, heat radiating fins 401a, 402a and 403a of heat sinks 401, 402 and 403 can be miniaturized, and consequently, the inverter unit 4 is miniaturized, and mountability of the inverter unit 4 to a rear bracket 19 is improved.

Abstract: A rotating electric machine for vehicles is capable of improving a cooling performance of switching elements forming an inverter module, and small-sizing the entire rotating electric machine. The rotating electric machine includes: a stator; a rotor, a cooling fan; a front bracket and a rear bracket; and a cover; and in which a pair of switching elements are disposed axially adjacent to each other between the rear bracket and the cover; a ventilation hole for sucking outside air is formed in a radially outer circumferential portion of the cover; and by rotation of the cooling fan, the outside air flows radially from the ventilation hole with respect to the switching elements and goes through a suction port and is discharged through a discharge port.

Abstract: A rotating electric machine for vehicles is capable of improving a cooling performance of switching elements forming an inverter module, and small-sizing the entire rotating electric machine. The rotating electric machine includes: a stator; a rotor, a cooling fan; a front bracket and a rear bracket; and a cover; and in which a pair of switching elements are disposed axially adjacent to each other between the rear bracket and the cover; a ventilation hole for sucking an outside air is formed on an axial wall of the cover; and by rotation of the cooling fan, the outside air flows from the ventilation hole with respect to the switching elements, and goes through a suction port and is discharged through a discharge port.

Abstract: The present invention provides an electrical power supply system for an automotive vehicle with high reliability and small size in which an adequate power is supplied to both a high power load like a blower motor and a conventional load like a battery by using a conventional alternator. The power supply system for the automotive vehicle comprises: an alternator with an armature winding and a field coil, a stepping-up DC/DC converter for applying a stepped up voltage of a battery to the field coil, a regulator for controlling an output voltage of the alternator by changing the output voltage in response to a rotating speed for supplying a power to the high power load, and for controlling the output voltage to be a charging voltage of the battery.

Abstract: An inverter-integrated electrical rotating machine is provided in which each switching device of an inverter and power wiring and control wiring for connecting them can be highly protected electrically and mechanically while the cooling property of the switching devices can be improved. Cooling air flows led in from cooling air flow suction holes in an end wall of an inverter case simultaneously flow in parallel from the cooling air flow suction holes on inner and outer sides in the radial direction. The cooling air flows then penetrate an inverter device in an axial direction through an outer circumferential cooling air passage formed by an outer circumferential lateral plate part and an inner circumference of the inverter case and an inner circumferential cooling air passage formed between an inner circumferential lateral plate part and a cover surrounding a rotary shaft. The cooling air flows are then led into a motor housing from a cooling air flow suction hole of the housing.

Abstract: An inverter-integrated rotating electric machine includes an enclosure in which a vent hole is formed, an AC motor accommodated in the enclosure, the AC motor including a rotor and a fan whose rotation introduces external air into the enclosure from outside through the vent hole, the fan being fixed to the rotor, and an inverter unit accommodated in the enclosure and disposed in the vent hole. The inverter unit includes a power circuit portion and a control circuit portion whose control board is housed in a case which thermally isolates the control board from the power circuit portion. The power circuit portion is located at a position facing the fan and the control circuit portion is located upstream of the power circuit portion with respect to an inflow of the external air. Signal lines from the power circuit portion are connected to signal lines from the control circuit portion through holes formed in the case.

Abstract: The present invention provides an automotive starter generator apparatus that is inexpensive and compact enabling engine starting functions and generating functions to be made compatible by improving maximum torque without having to increase the number of turns in an armature winding. An automotive starter generator machine includes: an armature core onto which an armature winding is wound; and a rotor having: a claw-pole rotor core disposed on an inner peripheral side of the armature core; and a field winding installed on an inner peripheral side of claw-shaped magnetic poles of the claw-pole rotor core, and has a starting function for starting an engine and a generating function. Permanent magnets are disposed between adjacent claw-shaped magnetic poles.

Abstract: Stator terminals are fastened between head portions and coupling seats in a state of surface contact by screwing relay members onto external screw thread portions of output terminal bolts. Three-phase wire terminals are fastened in a state of surface contact to end surfaces of the relay members at opposite ends from the coupling seats by screwing nuts onto the external screw thread portions of the output terminal bolts. In addition, insulating tubes are interposed between the relay members and extraction apertures so as to cover outer sides of the relay members.

Abstract: The dynamoelectric rotor according to the present invention, includes: a rotor coil; a first pole core body and a second pole core body respectively having: first and second cylindrical portions on which the rotor coil is installed; first and second disk portions; and a plurality of first and second claw-shaped magnetic poles magnetized into North-seeking (N) poles and South-seeking (S) poles; and permanent magnets for reducing magnetic leakage flux between the adjacent claw-shaped magnetic poles, flange portions projecting in a circumferential direction and restricting radial movement of the permanent magnets due to centrifugal force being formed on first and second side surfaces of the claw-shaped magnetic poles, and a groove being formed on the first disk portion of the first pole core body to make the first claw-shaped magnetic poles of the first pole core body displace more than the second claw-shaped magnetic poles of the second pole core body.

Abstract: Provided is a multilayer printed wiring board in which power supply patterns are shortened to decrease an impedance and electromagnetic radiation noise. The multilayer printed wiring board includes: a power supply layer (1) having at least two power supply patterns (5) with different voltages formed thereon; and a conductor layer (2) overlaid on the power supply layer (1) via an insulator, and at least one of the power supply patterns (5) has a first pattern portion (10) and a second pattern portion (11) formed in a non-contact manner with each other, and the first pattern portion (10) and the second pattern portion (11) are electrically connected to each other via a relay portion (14) including a relay pattern (12) formed on the conductor layer (2) and through holes (13) for connecting the power supply layer (1) and the conductor layer (2) at both ends of the relay pattern (12).

Abstract: The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for detecting the rotational position of the rotor, characterized by further comprising an adjuster for adjusting the position of the signal rotor or the detection stator by supplying a direct current to a predetermined phase of the stator coil and then a direct current to a different phase from the predetermined phase to rotate the rotor by a predetermined angle or more and constrain the rotor.

Abstract: An accommodating space is formed on an end surface at a first axial end of a rear bracket so as to envelop an end portion region of a shaft, and a brush holder and a sensor unit are disposed in the accommodating space. A brush connector unit and a sensor connector unit are disposed so as to project out of the accommodating space, and electrical connection between brushes and the brush connector unit and signal connection between the sensor unit and the sensor connector unit are performed inside the accommodating space.