Patent application number | Description | Published |
20080246354 | DYNAMOELECTRIC COIL PORTION INSULATING CONSTRUCTION - A stator coil | 10-09-2008 |
20080252167 | ALTERNATING-CURRENT DYNAMOELECTRIC MACHINE - A projected shape of permanent magnets is contained within a plane of projection formed by adjacent claw-shaped magnetic poles overlapping when the claw-shaped magnetic poles are viewed in a direction of rotation of a rotor, and is generally similar in shape to a shape of the plane of projection. | 10-16-2008 |
20080318729 | AUTOMOTIVE DRIVE APPARATUS - An engine, an electric motor-generator, an oil pump, an air conditioner, and a first power transmitting means that performs power transmission among a crank shaft of the engine, a rotating shaft of the electric motor-generator, and rotating shafts of the oil pump and the air conditioner are included. The first power transmitting means has: a crank pulley; a first electric motor-generator pulley; an oil pump pulley; an air conditioner pulley; a first belt that is wound around these pulleys; and a first one-way clutch that is interposed between the rotating shaft and the first electric motor-generator pulley so as to transmit a rotational driving force from the crank shaft to the rotating shaft without transmitting a rotational driving force from the rotating shaft to the crank shaft, and the electric motor-generator is motor driven while the engine is being driven. | 12-25-2008 |
20090019852 | AUTOMOTIVE SUPERCHARGING APPARATUS - An electric motor-generator and an engine are linked using a first belt that is looped around a crank pulley that is mounted to a crank shaft and a one-way clutch pulley that is mounted to a rotating shaft. An electronic control unit drives the electric motor-generator as an electric motor and drives the compressor by the electric motor-generator if engine speed is less than or equal to a predetermined value. | 01-22-2009 |
20090127945 | AUTOMOTIVE ELECTRIC MOTOR-GENERATOR - The present invention provides an automotive electric motor-generator that can achieve sufficient cooling of a radiating plate by ensuring a sufficient cooling airflow ventilation channel within limited axial or radial dimensions. | 05-21-2009 |
20090243407 | CONTROLLER-INTEGRATED ELECTRIC ROTATING MACHINE - In a controller-integrated electric rotating machine provided with a power circuit unit and a control circuit unit, a cooling property is improved so that the control circuit unit does not impair a flow of air for cooling the power circuit unit. | 10-01-2009 |
20090250287 | ELECTRIC MOTOR APPARATUS FOR ELECTRIC POWER STEERING AND ELECTRIC POWER STEERING APPARATUS - An electric motor and a control unit are integrally formed and are placed coaxially with a shaft of a gear box for reducing a speed of rotation of the electric motor and also the control unit is placed between the gear box and the electric motor, and a power feeding part of the electric motor is bonded to a bonding part of the control unit inside a housing or a case through an opening part disposed in the housing and/or the case | 10-08-2009 |
20090251023 | PERMANENT MAGNET ROTATING ELECTRIC MACHINE AND ELECTRIC POWER STEERING DEVICE USING THE SAME - A permanent magnet rotating electric machine includes: a stator including: a stator core having teeth, and an armature winding wound around each of the teeth to configure the multiple phases; and a rotor including a rotor core, and permanent magnets provided in order around the rotor core. The rotor is arranged to be spaced apart from the stator with an air gap therebetween. Each of the permanent magnets has a curved surface opposed to the stator and is configured to satisfy the following relationship: | 10-08-2009 |
20090251030 | MOTOR FOR CONTROLLER INTEGRATED ELECTRIC POWER STEERING APPARATUS AND ELECTRIC POWER STEERING APPARATUS - An apparatus is provided for obtaining a compact and inexpensive motor for controller integrated electric power steering apparatus capable of reducing a component for connection and the number of man-hours of assembly, and an electric power steering apparatus. A driving substrate having a power element is arranged in the side of a speed reduction mechanism of the inside of a case of a controller and a control substrate for controlling driving of the driving substrate is arranged in the side of a motor of the inside of the case and a resolver and a lead frame comprising connection wiring are arranged between a motor shaft direction of the control substrate and the driving substrate and an input-output terminal of the resolver is electrically connected to the control substrate. It is placed substantially coaxially in order of a motor, the controller and a speed reduction mechanism in the motor shaft direction. | 10-08-2009 |
20100018032 | Rotor of Rotating Electrical Machine and Manufacturing Method Therefor - A rotor of a rotating electrical machine is provided in which neither deterioration nor fluctuation in the cogging torque is caused and that causes neither physical enlargement nor cost increase. The rotor of a rotating electrical machine, provided with a plurality of magnetic poles | 01-28-2010 |
20110187212 | AUTOMOTIVE ELECTRIC MOTOR-GENERATOR WITH RADIAL PLATES AND CIRCUIT BOARDS DISPOSED IN A FAN SHAPE IN A COMMON PLANE AROUND SHAFT OF ROTOR - The present invention provides an automotive electric motor-generator that can achieve sufficient cooling of a radiating plate by ensuring a sufficient cooling airflow ventilation channel within limited axial or radial dimensions. In the present invention, first and second radiating plates each form a fan shape, have N-channel power MOSFETs mounted thereto, and have a drain potential for the power MOSFETs. A first circuit board includes insert conductors that connect the power MOSFETs in series, and a second circuit board has insert conductors that are connected to source terminals of the power MOSFETs and that have negative potential. The first radiating plate, the second radiating plate, the first circuit board, and the second circuit board are disposed in a fan shape that is centered around a shaft so as to line up radially in a plane that is perpendicular to the shaft outside one axial end of a rear housing. | 08-04-2011 |
20120181903 | CONTROLLER-INTEGRATED ELECTRIC ROTATING MACHINE WITH A SHIFTED CONTROL CIRCUIT - In a controller-integrated electric rotating machine provided with a power circuit unit and a control circuit unit, a cooling property is improved so that the control circuit unit does not impair a flow of air for cooling the power circuit unit. A power circuit unit having switching elements for converting DC power to AC power for supplying the AC power to an electric rotating machine, a control circuit unit for controlling the switching elements of the power circuit unit, and a rotational position detection sensor arranged on a rotating shaft for detecting the rotation of the rotating shaft are provided. The control circuit unit is disposed, when viewed in the direction of the rotating shaft, at a position where the power circuit unit is not disposed and is shifted radially outward so as not to overlap the rotational position detection sensor. | 07-19-2012 |
20130088128 | DEVICE FOR CONTROLLING DRIVE OF MOTOR FOR ELECTRIC POWER STEERING DEVICE - A device designed to reduce temperature rise in its control board. The device includes a switching element; a coil; a smoothing capacitor; an electrical connection member for electrically connecting the switching element with the smoothing capacitor and the coil; a control board that mounts a control element; a control signal line for electrically connecting the switching element with the control board; and a switching element placing portion for placing the switching element thereon. The electrical connection member is arranged between the switching element and the control board; the smoothing capacitor and the coil are arranged, with respect to the electrical connection member, on a side of the switching element; and end surfaces of the smoothing capacitor and the coil are positioned, with respect to the electrical connection member, apart from a plane where the switching element and the switching element placing portion are adjoined together. | 04-11-2013 |
20130221516 | POWER SEMICONDUCTOR MODULE - A power semiconductor module ( | 08-29-2013 |
20130221776 | ELECTRIC POWER STEERING ELECTRIC MOTOR APPARATUS AND ELECTRIC POWER STEERING APPARATUS - An electric power steering electric motor apparatus includes: an electric motor including: a motor housing; a stator; a rotor; and a power supplying portion that supplies electric power to the stator; and a controlling unit including a driving circuit that supplies electric power to the electric motor; a connecting portion; a controlling circuit; and a case that covers the driving circuit and the controlling circuit, the electric motor and the controlling unit being mounted coaxially onto a gear housing that reduces rotational speed of the electric motor so as to position the controlling unit on a side near the gear housing, and the connecting portion being connected to the power supplying portion inside the case through an opening portion formed on the case, and being positioned and held by an insulating member so as to be insulated from the case and the motor housing. | 08-29-2013 |
20130241047 | POWER SEMICONDUCTOR MODULE AND POWER UNIT DEVICE - A power semiconductor module includes: a plurality of first metal plates arranged in the same planar state; a power semiconductor chip mounted on the first metal plate; and an overbridge-shaped second metal plate which is composed of bridge frame sections and leg sections that support the bridge frame sections, the leg sections being for appropriately performing solder bonding between electrodes of the power semiconductor chips and between the electrode of the power semiconductor chip and the first metal plate, the power semiconductor module being configured by a resin package in which these members are sealed with electrically insulating resin. In the power semiconductor module, the solder bonding section of the leg section is formed in a planar shape by bending process and is provided at a position lower than the bridge frame section. | 09-19-2013 |
20130257185 | ROTARY ELECTRIC MACHINE - A rotary electric machine according to the present invention is a rotary electric machine including: a heat sink mounted with a power circuit; a housing for containing incorporated components; and a frame for containing a rotor and a stator core; the heat sink, the housing, and the frame being coaxially and integrally configured. In the rotary electric machine, there are included a lead frame connected to a power circuit, and a connector portion connected to the lead frame and being for connecting to the outside; the heat sink is made of metal; and the housing is made of resin. | 10-03-2013 |
20130300222 | MOTOR DRIVE DEVICE FOR ELECTRIC POWER STEERING APPARATUS - A motor drive device employed, for example, in an electric power steering apparatus for vehicle, achieves a reduction not only in size but also in vibration and noise at the same time. | 11-14-2013 |
20140145548 | MOTOR - A material of the stator core is different from a material of the housings, in a state where one end portion in the axis direction of the stator core is contacted to the first housing, and the other end portion in the axis direction of the stator core is contacted to the second housing; and a neighboring portion of a contact portion, at which the first housing is contacted to the stator core, and another neighboring portion of a contact portion, at which the second housing is contacted to the stator core, are connected by a connecting component in the axis direction, of which material is the same as a material of the stator core, whereby the first housing and the second housing are connected each other; and the first housing and the second housing face each other in a state where a gap intervenes between both housings. | 05-29-2014 |
20140239765 | PERMANENT MAGNET SYNCHRONOUS MOTOR HAVING A LOW DEMAGNETIZATION FACTOR - To obtain a permanent magnet synchronous motor suitable for an electric power steering system, in which the magnet thickness (magnet used amount) can be reduced while securing demagnetization resistance and torque characteristics. In a permanent magnet synchronous motor including a rotor in which plural permanent magnets are arranged at an outer periphery of a rotor core, which is supported so as to rotate freely, and a stator provided at the outside of the stator and having stator windings | 08-28-2014 |
20140326530 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus ( | 11-06-2014 |
20140346910 | PERMANENT MAGNET TYPE CONCENTRATED WINDING MOTOR - In a permanent magnet type concentrated winding motor, the number of magnetic poles is M, a stator Sr has an N number of teeth T around which coils are concentratedly wound and which are circumferentially arranged at equal intervals, M is equal to (18±4)n and N is equal to 18n, an armature winding AW has an m number of parallel circuits, and a 1-phase circuit of the parallel circuits is configured to have a 6n/m number of coils connected in series with each other. | 11-27-2014 |