Abstract: The present invention facilitates size and weight reduction by enhancing a coil space factor. A rotating electrical machine according to the present invention is provided with a core having a slot that is continuous in the axial direction, a winding provided within the slot, and an insulating member provided between the slot and the winding and is characterized in that a first pyramid-frustum surface of the insulating member that is provided on the side of the insulating member that is inserted into the slot and/or a second pyramid-frustum surface that is provided on the side of the insulating member into which the winding is inserted is provided at an axial end of the core.
Abstract: A magnet-type power generator includes a rotor having a bowl-shaped flywheel and plural magnets disposed on an inner circumferential surface of the flywheel so as to be spaced at a predetermined interval, and a stator having plural cores facing the magnets and each having a coil wound therearound. The magnets include a bonded magnet integrally molded with the flywheel.
Abstract: According to one embodiment, an apparatus for driving a capacitance-type actuator includes a first voltage source, a second voltage source, and a driver. The first voltage source outputs a first voltage to charge the capacitance-type actuator. The second voltage source outputs a second voltage to charge the actuator. The driver switches between first and second charges and first and second discharges. The first charge supplies the first voltage to the actuator. The second charge supplies the sum of the first voltage and the second voltage to the actuator. The first discharge emits a charge accumulated in the actuator and guides the charge to the second voltage source. The second discharge emits the charge accumulated in the actuator without guiding the charge to the second voltage source.
Abstract: A power generating unit of the preset invention includes: a power generating apparatus that has a push part, and generates power by pushing the push part; a rotating body that pushes the push part by rotating around a fulcrum; a drive body that rotates the rotating body by moving from a first position to a second position; and a first spring that returns the drive body from the second position to the first position. More preferably, the power generating unit further includes an actuating part; and a second spring disposed between the actuating part and the drive body, wherein the drive body is disposed between the first spring and the second spring. With this configuration, the power generating unit of the present invention can realize diversification of a use of the power generating apparatus.
Abstract: In this rectifying apparatus, a circuit board is disposed between a first rectifying element holding portion and a second rectifying element holding portion such that first rectifying element connecting portions are disposed in a loosely fitted state inside a second penetrating aperture that is formed on the second rectifying element holding portion, and second rectifying element connecting portions are disposed in a loosely fitted state inside a first penetrating aperture that is formed on the first rectifying element holding portion; first leading electrodes of a plurality of first rectifying elements respectively extend axially and are connected to each of the first rectifying element connecting portions; and second leading electrodes of a plurality of second rectifying elements respectively extend axially and are connected to each of the second rectifying element connecting portions.
Abstract: The present invention relates to an electrical machine having a stator. The stator comprises a plurality of slots for receiving a stator winding. One respective conductor section of the stator winding is inserted into each slot. The conductor sections of at least one pair of poles are short-circuited to one another on a first side of the stator. The conductor sections on a second side of the stator, opposite from the first side, are each connected to a terminal of a power supply unit. The power supply unit consists of two annular electrical conductors, between which at least one power-electronics component is arranged.
September 18, 2015
Date of Patent:
January 1, 2019
Adrian Patzak, Florian Bachheibl, Gurakuq Dajaku, Dieter Gerling
Abstract: A power module for an electric machine. The power module includes a thermally conductive base having opposite first and second surfaces. The first surface is adapted for mounting the power module in conductive thermal communication with a heat sink. A MOSFET superposes the base second surface and is in conductive thermal communication with the base. A MOSFET driver superposes the base second surface and is operatively connected to the MOSFET. The transference from the power module of heat generated by the MOSFET and the MOSFET driver from the power module is directed along a primary cooling path to the heat sink through the base and a secondary cooling path to ambient air. The primary and secondary cooling paths are separate from each other. An electronics package and an electric machine including a power module are also disclosed.
Abstract: Each of claw-shaped magnetic poles is formed with an air gap expanding portion formed on at least a portion of both side portions in a circumferential direction, and an air gap is formed between the air gap expanding portion and tip portions of teeth that is larger than another air gap formed between radial end portions and the tip portions of the teeth. When a circumferential distance between the radial end portion and the tip portion is indicated by ?, and when the air gap is indicated by ?, 3????15? is satisfied. When a claw-tip end face width is indicated by L1, and when a claw-root end face width is indicated by L2, the claw-shaped magnetic pole is formed in a range of 0.20?L1/L2?0.71.
Abstract: An axial brushless DC motor comprising a stator, a rotor including a magnet, a sleeve bushing extending through the stator and including a pair of opposed distal collars, a motor shaft extends through the sleeve bushing, and a pair of opposed bearings are seated in the respective pair of collars and mount the shaft and a rotor for rotation relative to the sleeve bushing and the stator. The bearings are adapted for thrust, radial support/self-alignment, and angular adjustment of the motor shaft. In one embodiment, a stator overmold member includes a central tube that defines the sleeve bushing and includes a stator shorting ring. In one embodiment, a metal pole piece is seated in a cup-shaped magnet with a rim and the magnetic flux travels through the rim of the magnet and through a magnetic flux sensor.
February 5, 2016
Date of Patent:
December 4, 2018
Yulanda YHW King, David Kolberg, Douglas E. Cors, Scott Calkins, Eric Andrina, Kevin C. Wolschlager, William S. Stewart
Abstract: The present invention is a machine in which the repulsion and attraction forces of moving electromagnets are utilized to power a series of linkages that ultimately turn a crank. The motor is controlled by an external computer system which distributes an electric current among the electromagnets. In order to reverse the polarities of the electromagnets, the direction of the current will be rapidly changing. This polarity reverse causes electromagnets to repel and attract. The magnets then oscillate along two swing arms that once swung because of both polarity attraction and repulsion, activate the linkages.
April 1, 2016
Date of Patent:
November 27, 2018
Benjamin Ishak, Carter Ishak, Alec Ishak, Donald Vance
Abstract: An end of each of slits of a rotor on a magnet insertion hole side has a triangular shape. A slit inner-side line of each of the slits includes an apex and a pair of side ends. An interval between each of the pair of side ends and the magnet insertion hole is larger than an interval between the apex and the magnet insertion hole, and an interval between the apex and the magnet insertion hole is larger than a plate thickness of each of steel plates forming a rotor core.
Abstract: A motor according to an embodiment of the present invention includes a rotor having a rotor core and a plurality of magnetic poles including permanent magnets provided in the rotor core; and a stator having a stator core in which a plurality of teeth disposed on the side of the outer periphery of the rotor so as to be opposed to the plurality of magnetic poles and slots for containing armature winding wound around the plurality of teeth are formed.
Abstract: Electric drive device for an electric power steering system that includes an electric motor with a motor case, and a motor shaft with a drive end, an electronic control unit that controls the drive of the motor, According to one embodiment the electronic control unit includes a power board and a heat sink. A connector coupled to a side of the electric drive device is at least partially maintained in its position with the use of one or more projections projecting from a first area of the connector that reside within one or more corresponding housings located in a peripheral region of the heatsink.
January 5, 2016
Date of Patent:
November 6, 2018
FAGOR, S. COOP
Francisco Javier Acinas Lope, Fernando Martinez Areal, Javier Gomez De Segura Ipacua, Jose Sanchez Luaces
Abstract: A rotor (1) for a rotary electric machine includes a rotor core (2) including a first core portion (20) having a plurality of core pieces (5, 6) joined together through caulking portions (2a) and a hollow first lightening portion (20a), and a second core portion (21) having a plurality of core pieces (7, 8) joined together through caulking portions (2a) and a press-fit portion (21b). A radial magnetic path width of a ring-shaped outer circumferential portion formed by laminating the first core portion (20) and the second core portion (21) changes along a circumferential direction of the rotor core (2). Therefore, a weight and an inertia can be reduced.
Abstract: A motor according to one embodiment of the present invention comprises: a rotation shaft; a rotor part encompassing the rotation shaft; a stator part arranged to be spaced from the rotor part; and a housing for fixing the stator part, wherein the inner surface of the housing includes a plurality of projection units.
Abstract: In a rotary electric machine, an armature core includes a plurality of magnetic pole teeth and slots are formed between the magnetic pole teeth. An armature coil group includes a plurality of armature coils each including a pair of coil sides arranged in the slots, which are different from one another, and coil ends connecting the pair of coil sides. The armature coil group includes, as the armature coils, a plurality of base coils, of which one coil side is arranged in an upper opening of the slot and the other coil side is arranged in a lower opening of the slot, upper layer coils, of which both one coil side and the other coil side are arranged in an upper opening of the slot, and lower layer coils, of which both one coil side and the other coil side are arranged in the lower opening of the slot.
Abstract: An electronic package connectable to an electric machine includes a cooling tower having a metallic wall with a radially outer wall surface. The radially outer wall surface includes discrete, radially outwardly projecting pedestals. The planar pedestal mounting surfaces are parallel with the central axis such that the radial distance between the axis and the radially outer wall surface is greater within the periphery than outside the periphery. Power modules are mounted to the pedestals. Each power module includes a base in thermal contact with a pedestal mounting surface and an opposing interior surface in thermal communication with a MOSFET power electronics device. A cover plate is spaced from the base interior surface. A dielectric housing member surrounds the MOSFET power electronics devices. An electrical connection terminal is disposed outside the periphery of each module. An electric machine including such an electronic package is also disclosed.
Abstract: The invention relates to a magnet-retaining spring (11), to an electric machine (10) containing such a magnet-retaining spring, and to a method for producing the electric machine (10), in particular for the motorized adjustment of moving parts in a motor vehicle, wherein the magnet-retaining spring (11) has a first leg (90) and a second leg (91), which are connected to each other by means of a bow (92), and the first and second legs (91, 92) span a plane (88) in space, wherein the bow (92) protrudes from the spanned plane (88).
Abstract: A rotor for a rotary electrical machine, fitted such as to rotate around an axis (X), and comprising a pair of magnet wheels (17) which each have a flange (18) and a plurality of magnetic poles (19). Each magnetic pole (19) extends axially from the flange (18) towards a free end (26), and has an outer surface (27). The outer surface (27) of at least one magnetic pole (19) of at least one magnet wheel (17) has at least one decreasing segment (29). The decreasing segment (29) is configured such that a radius between the said outer surface (27) and the axis (X) of the rotor (4) decreases, when going along the said decreasing segment (29), towards the free end (26) of the said magnetic pole (19).