Windings And Core Structure Patents (Class 310/179)
  • Patent number: 7687961
    Abstract: A stator includes mutually independent annular coils and of two phases and teeth and of three phases.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: March 30, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tadanobu Takahashi, Nobuyuki Imai, Shin Aoki, Daijiro Takizawa
  • Publication number: 20100071974
    Abstract: A power unit includes: an energy dispensing/synthesizing system in which a first body of rotation is connected to an output shaft of a prime mover and a second body of rotation is connected to a driven unit via a first power transmission path; a first power transmission system selectively operable between an operating state for enabling power transmission in the first power transmission path and an operating state for disconnecting the power transmission; a second power transmission path connecting between the output shaft of the prime mover and the driven unit; and a second power transmission system selectively operable between an operating state for enabling power transmission in the second power transmission path and an operating state for disconnecting the power transmission, wherein an auxiliary device is connected to a second body of rotation of the energy dispensing/synthesizing system.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 25, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shigemitsu AKUTSU, Noriyuki ABE
  • Patent number: 7683517
    Abstract: A method for mounting coil onto stator for rotary electric machine. The method includes forming coil pieces by winding wire with flat cross section into single row lamination state including wire layers aligned along perpendicular line to flat surfaces of wire. The coil is formed for first portion to be inserted in slot and second portion not inserted in slot appear alternately along the coil. The method displaces wire layers at the first portion changing the single row lamination state to connectively laminated state where wire layers at portion to be inserted in slot each adjacent pair of the wire layers partially overlap with respect to direction perpendicular to flat wire surfaces. The method includes inserting wires of first portion into slot, passing each wire layer through slot opening successively from the top wire layer of lamination and displacing each wire layer at first portion from each other.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: March 23, 2010
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Hiroshi Fukasaku, Kiyoshi Uetsuji, Taku Adaniya
  • Patent number: 7683516
    Abstract: A stator of a rotating electric machine includes a stator core, and multiphase stator coils incorporated in the stator core. The stator core is formed by connecting a plurality of split core pieces. Each of the stator coils is wound around a coil bobbin installed on the outer periphery of the tooth portion of a respective one of the core pieces, by a concentrated winding method; and around mutually adjacent tooth portions, the respective coils that have the same phase and mutually different in the winding direction are continuously wound. A crossover wire for connecting the first stator coil wound around the first tooth portion and the second stator coil wound around the second tooth portion, is located at a position further toward the central side in the axial direction of the coil bobbin than the end portion of the coil bobbin, inclusive of this end portion.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: March 23, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Ishigami, Masashi Kitamura, Osamu Koizumi, Mitsuaki Mirumachi
  • Patent number: 7679237
    Abstract: A drive apparatus for an electric vehicle includes a rotating electric device; a power source; and a terminal block. The rotating electric device drives the wheels of the vehicle. Electric power is supplied to the rotating electric device from the power source through a power-supply passage connected to the rotating electric device through the terminal block, which is fitted to the rotating electric device. The rotating electric device also includes a housing; a stator provided within the housing; and a coil-end positioned at the end of the stator in the axial direction. The terminal block is disposed near the coil-end at a position equal to or lower than the top surface of the housing. The terminal block is fitted to the rotating electric device so that the terminal block is electrically connected to the coil-end, by inserting the terminal block from the side surface of the housing.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: March 16, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yukihiko Ideshio
  • Publication number: 20100060097
    Abstract: A motor/generator system that can be controlled internally based on external power-generating needs or in response to operating parameters. The system can be controlled manually by a user to select desired power-generating needs. The system can also be controlled by an algorithm taking into consideration parameters such as vehicle velocity and potential to predict speed, braking, acceleration or deceleration. In the motor/generator, stator plates can be moved by linear controllers in response to these external inputs to vary the amount of required power, creating an on-demand charging system that can efficiently transfer power and extend the life of the system.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 11, 2010
    Inventor: Scott Lewis Peterson
  • Publication number: 20100050702
    Abstract: Provided is a driving device for a full automatic washing machine in which a clutch unit can stop rotation of a dehydration axis without having a particular brake unit, since the clutch unit is closely adhered to a first dehydration axis and a bushing when the rotation of the dehydration axis is controlled according to a wash or dehydration stroke in a full automatic washing machine. In addition, since a clutch coupler of the clutch unit moves at a wash or dehydration stroke in a driving device of a washing machine to thus be attached to and detached from a clutch gear which controls rotation of the first dehydration axis, and to thereby control a rotational force which is transferred to an inner tub, the washing machine is embodied to have a simple clutch coupling structure.
    Type: Application
    Filed: April 8, 2008
    Publication date: March 4, 2010
    Inventors: Byoung Kyu Kim, Kyu Hyuk Jeong, Jong Hoon Lee
  • Publication number: 20100052626
    Abstract: A method is disclosed for arranging and exciting the stator, rotor and various windings of a multi-stage brushless high frequency alternator so that the resulting multiple high frequency sub-phase armature winding outputs can be rectified and commutated into desired phases of power-frequency alternating current (AC) electrical output, including single-phase, split-phase, three-phase and other multiple phase output. Power frequency currents in field windings control output amplitude, output frequency, and output phase. If desired, DC power output can be accommodated as zero power-frequency operation. Devices incorporating this arrangement are suitable of generating fixed frequency electrical power while accommodating variable speed rotation of a generator shaft and offer multiple advantages over existing techniques. The capability to generate speed independent electric power allows natural power sources such as windmills and hydro-power stations to be efficiently coupled to fixed frequency power grids.
    Type: Application
    Filed: November 6, 2009
    Publication date: March 4, 2010
    Applicant: RAVEN ENERGY ALTERNATIVES, LLC
    Inventors: Christopher N. Tupper, Duncan G. Wood
  • Patent number: 7671504
    Abstract: An electric motor is disclosed with an air-cored winding which is composed of a plurality of single coils made of wire, wherein the single coils overlap each other in an imbricated manner and the single coils are preformed to form an offset at least in the region of two opposite corners, so that half of the legs are located in a first plane and half of the legs are located in a second plane. A more inexpensive and more robust assembly of air-cored windings for electric motors can thereby be achieved.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: March 2, 2010
    Assignee: Maxon Motor AG
    Inventors: Richard Rohrer, Jens Schulze, Remy Hofer, Albin Von Moos-Woehrl, Martin Gaul, Peter Mitterbaeck, Juergen Mayer
  • Publication number: 20100038987
    Abstract: A motor having a hyperbolic cosine curve shaped rotor and a matching hyperbolic cosine curve shaped stator.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 18, 2010
    Applicant: INFINITE WIND ENERGY LLC
    Inventor: Chong Kyu Kim
  • Publication number: 20100033065
    Abstract: A plurality of winding parts are wound around teeth of an iron core with insulators disposed therebetween, and a printed wiring board is electrically connected to the winding part with a plurality of terminal pins. Each terminal pin is extends along an axial direction of the iron core and is attached to one of the insulators. An end portion of each winding part is wound around one of the terminal pins, and the terminal pin is soldered to the printed wiring board together with the end portion of the winding part. The terminal pins extend through hole portions of the printed wiring board.
    Type: Application
    Filed: October 1, 2007
    Publication date: February 11, 2010
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hirokazu Fujii, Hiroki Fujita, Kouji Inoue, Mikio Itou
  • Patent number: 7659680
    Abstract: A combined motor-battery system comprising an electric power source adapted to convert self-originating electrical current to mechanical power utilizing a set of common functional structures. Preferred embodiments include an electrochemical cell comprising field reactive electrodes that directly produce extractable mechanical forces in the presence of a magnetic field.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: February 9, 2010
    Inventor: Jack C. McVickers
  • Publication number: 20100026008
    Abstract: A synchronous generator 1 including a rotor having a field winding placed in the slots thereof and a stator having an armature winding placed in the slots thereof, wherein the value of the number of slots per two poles in stator minus the number of slots per two poles in rotor is equal to or greater than +9, or equal to or smaller than ?9.
    Type: Application
    Filed: July 22, 2009
    Publication date: February 4, 2010
    Applicant: HITACHI, LTD.
    Inventors: Masanori SAWAHATA, Kazuo NISHIHAMA, Hiroyuki MIKAMI, Tetsuo FUJIGAKI, Motonobu IIZUKA, Shuji MIZUTANI
  • Publication number: 20100013233
    Abstract: (1) A vertical shaft, horizontally driven, shrouded wind turbine utilizing one common vertical shaft turned by a series of fixed vertical wing type blades extracting maximum energy from the wind in lift, drag and volume; and (2) an alternator for generating electrical current, with multiple flywheels composed of a nonmagnetic chemical element possessing a free electron and a ring of electrically non-conductive permanent magnets arranged adjacent to each other in magnetic attraction and placed between each disk and ring adjacent to stationary three phase sinusoidal “S” windings of coated copper magnet wire aligned in close proximity to the magnets in each flywheel. Certain elements in the composition of the magnets and metallic chemical element possessing a free electron in motion interact with the copper magnet wires to enhance the flow of paired electrons, thus giving this voltage-intensive alternator the ability to demonstrate remarkably high efficiencies even at relatively low RPMs.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 21, 2010
    Inventor: Barton Albert Buhtz
  • Patent number: 7649294
    Abstract: In a rotary electric machine, at least one of first and second ends of each conductor segment is at least partially joined to at least one of the first and second ends of a corresponding another one of the conductor segments to provide the stator winding including a plurality of joint portions of the plurality of conductor segments. An insulating film covers each of the conductor segments except for at least the joint portions of the stator winding. At least part of the insulating film of each of the conductor segments located close to a corresponding one of the joint portions contains an evaporatable component. An amount in ppm of the evaporatable component contained in the at least part of the insulating film is adjusted to be equal to or lower than 20000 ppm.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 19, 2010
    Assignee: Denso Corporation
    Inventor: Akihito Koike
  • Patent number: 7647689
    Abstract: A method of manufacturing a stator of a rotating electric machine includes a conductor end shaping process for shaping multiple lead wires aligned side by side in a single layer into a specific form in a plane in which the lead wires are initially aligned before a flat-patterned winding assembly configured by aligning multiple line conductors side by side and shaping the line conductors in spiral form is fitted into multiple slots formed in a flat stator core plate. The shaping process includes the steps of shaping the lead wires into bent form by using a stairstep conductor shaping jig under conditions where the lead wires are separated from one another along a direction generally perpendicular to the plane in which the lead wires are initially aligned, and causing the lead wires to return to positions in the initial alignment plane thereof by removing the stairstep conductor shaping jig.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: January 19, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yasukazu Nishimura, Yoshihiro Harada, Yoshinori Kanazawa, Yutaka Hirota
  • Patent number: 7647692
    Abstract: A method of manufacturing a dry-type, resin-encapsulated transformer coil that includes forming a plurality of conductive layers and positioning a plurality of pre-formed plastic cooling ducts so as to be disposed between the conductive layers.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: January 19, 2010
    Assignee: ABB Technology AG
    Inventors: Thomas J. Lanoue, Michael J. Mitchell, William E. Pauley, Jr., Charlie H. Sarver
  • Publication number: 20100007223
    Abstract: An electromagnetic machine (1) comprises an electrical conductor vane (7) disposed between two magnetic arrays (3). The electrical conductor vane (7) comprises a plurality of electrically insulated conductors (35), wherein when the conductors (35) are disposed in magnetic fields produced by the magnetic arrays (3) and when current flows in the conductors (35), an electromagnetic force is induced to cause movement of the magnetic arrays (3) relative to the electrical conductor vane (7) and wherein the set of conductors (35) substantially fills the gap between the magnetic arrays (3) through which the magnetic fields pass.
    Type: Application
    Filed: September 12, 2007
    Publication date: January 14, 2010
    Applicant: WIRELESS MOTOR DEVELOPMENTS LIMITED
    Inventor: Phillip Raymond Michael Denne
  • Patent number: 7646127
    Abstract: In a stator of a motor, a first winding of each coil is arranged around three teeth next to one another and a second winding of each coil is arranged around three teeth with a tooth which is arranged at an end of the three teeth for the first winding at a center thereof. By virtue of such configuration, each coil is arranged around four teeth in a distributed manner.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: January 12, 2010
    Assignee: Nidec Corporation
    Inventors: Yoshio Fujii, Hideaki Suzuki
  • Patent number: 7642667
    Abstract: A synchronous machine has a stator in which grooves are provided at the inner or outer periphery in mutually spaced relationship to receive a stator winding. The synchronous machine may be in the form of a ring generator used in a wind power installation, for example. In order to provide a stator having a winding, in which the susceptibility to trouble as a consequence of the high loading on the generator is substantially reduced, the stator winding is wound without interruption continuously throughout.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: January 5, 2010
    Inventor: Aloys Wobben
  • Publication number: 20090309451
    Abstract: The invention relates to an electrical machine with at least eight exciter poles in the stator and with a commutator rotor, comprising numerous pole teeth, differing from the number of exciter poles and the pole teeth thereof carrying at least one coil each and being connected with commutator laminates being in contact with each other in pairs vie contact bridges, wherein the number of laminates is a plurality of the pole teeth. To reduce the magnetic and electric ripple of the machine the number of the commutator laminates are a plurality of half of the pole pair number of the exciter poles, but not a plurality of the whole pole pair number, wherein the pole pair number has to be an even number.
    Type: Application
    Filed: July 31, 2007
    Publication date: December 17, 2009
    Inventor: Gerald Roos
  • Publication number: 20090309463
    Abstract: An electromechanical machine having a stator and a rotor, the stator including at least one stator module of N toroid shaped electromagnets, the electromagnets arranged along an arc a predetermined distance apart defining a stator arc length. Each of the electromagnets has at least one gap. The rotor includes a disc adapted to pass through the at least one gap. The disc includes a plurality of permanent magnets spaced side by side about a periphery thereof and arranged so as to have alternating north-south polarities. The permanent magnets are sized and spaced such that within the stator arc length the ratio of permanent magnets to electromagnets is N+1 to N, where N is the number of electrical excitation phases applied to the electromagnets.
    Type: Application
    Filed: August 14, 2006
    Publication date: December 17, 2009
    Applicant: APEX DRIVE LABORATORIES, INC.
    Inventors: Edward Failing Ritz, JR., John E. Bales, Tommy Long, J. Lynn Saunders, Ray Nelke, Mohamed Sabri
  • Publication number: 20090309449
    Abstract: A rotating electric machine comprises a stator having stator salient poles, three-phases windings would around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles. The three-phase windings are concentratively wound around each of the stator salient poles, with windings of each phase wound around at more than one stator salient pole. The windings of each phase have a phase difference of voltage between at least one of the windings and the other.
    Type: Application
    Filed: August 14, 2009
    Publication date: December 17, 2009
    Applicants: HITACHI, LTD., HITACHI CAR ENGINEERING CO., LTD.
    Inventors: Fumio Tajima, Yutaka Matsunobe, Shouichi Kawamata, Suetaro Shibukawa, Osamu Koizumi, Keijiro Oda
  • Patent number: 7631413
    Abstract: A method of manufacturing armature windings for an electro-mechanical machine, includes manufacturing a band of conductor elements with at least one layer, formation of windings on a tool and installation of the windings into an armature. The method results in a highly uniform winding, increased fill percentage in slots, improved electrical efficiency, lower material cost and labor consumption for manufacturing and complete automation of production.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: December 15, 2009
    Assignee: Bison Gear & Engineering Corporation
    Inventors: Ronald D. Bullock, Edmund P. Henke, Boris Zlotin, Alla Zusman, Peter Ulan, Vladimir Gerasimov, Vladimir Proseanic
  • Patent number: 7633204
    Abstract: A motor stator includes a stator core stack having a core back and a plurality of teeth extending from the core back in a radial direction of the core back. The motor stator also includes winding wires wound around the teeth and having no bonding layer. Only winding wires of the first and third phases are wound to prevent loosening thereof.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: December 15, 2009
    Assignee: Nidec Corporation
    Inventors: Hiromasa Fujii, Wataru Yamauchi
  • Publication number: 20090289512
    Abstract: A radial gap motor/generator has a thin annular array of magnets mounted for rotation to a stator in a radially spaced relation to at least one thin annular induction structure fixed to a stationary stator may be air or liquid cooled. Further, the motor has at least radial gap between a magnetic core and the array and may include multiple gaps and multiple annular induction structures to increase the overall power density of the system.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 26, 2009
    Inventor: Bryan Prucher
  • Patent number: 7622843
    Abstract: An electric machine is disclosed herein comprising a core with a plurality of slots, the core including an insertion side and an opposing side. A winding arrangement is provided in the plurality of slots of the core. The winding arrangement is comprised of a plurality of differently shaped hairpin conductors. Each of the plurality of differently shaped hairpin conductors includes at least one leg inserted into one of the plurality of slots, with a leg end of the at least one leg extending from the opposing side of the core. All the leg ends extending from the opposing side of the core are bent the same number of slots and connected to immediately adjacent leg ends at the opposing side of the core. Thus, all connections between the differently shaped hairpin conductors are provided at the opposing side of the core.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: November 24, 2009
    Assignee: Rerry International, Inc.
    Inventor: Wei Cai
  • Patent number: 7622842
    Abstract: In a rotary electric machine, output ends of first and second three-phase windings of first and second sets included in a first group are separated from those of third and fourth three-phase windings of third and fourth sets included in a second group. Each of the first to fourth three-phase windings is inserted in the slots while being turned at one of the first and second opposing end surface sides of a stator core. Turn portions of each of the first to fourth three-phase windings at the one of the first and second opposing end surface sides of the stator core have a substantially U shape, and are so disposed as to be nonoverlapped with each other in an axial direction of the stator core.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: November 24, 2009
    Assignee: Denso Corporation
    Inventors: Noriyuki Hayashi, Shigenobu Nakamura
  • Patent number: 7615904
    Abstract: A method is disclosed for arranging and exciting the stator, rotor and various windings of a multi-stage brushless high frequency alternator so that the resulting multiple high frequency sub-phase armature winding outputs can be rectified and commutated into three phase power frequency alternating current (AC) electrical output. Power frequency currents in field windings control output amplitude, output frequency, and output phase. Devices incorporating this arrangement are suitable of generating fixed frequency electrical power while accommodating variable speed rotation of a generator shaft and offer multiple advantages over existing techniques. The capability to generate speed independent electric power allows natural power sources such as windmills and hydro-power stations to be efficiently coupled to fixed frequency power grids.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: November 10, 2009
    Assignee: Raven Energy Alternatives, LLC
    Inventors: Christopher N. Tupper, Duncan G. Wood
  • Patent number: 7605513
    Abstract: A first coil includes a first inner-coil bundle and a first outer-coil bundle. The first outer-coil bundle is positioned radially outwardly of the first inner-coil bundle in a radial direction of a stator core. A second coil includes a second inner-coil bundle and a second outer-coil bundle. The second outer-coil bundle is positioned radially outwardly of the second inner-coil bundle. A first inner-coil end and a first outer-coil end form a gap and a groove. A second inner-coil end and a second outer-coil end also form a gap and a groove.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: October 20, 2009
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Teruo Imai, Kenji Niwa, Tomoyoshi Yokota
  • Patent number: 7605514
    Abstract: In a rotating electric machine including a field pole unit having ten magnetic poles (P=10) and an armature having twelve teeth (Q=12), armature coils are wound around the successive teeth with phase relationships and winding polarities arranged in the order of U+/U+, U?/V+, V?/V?, W?/V+, W+/W+, W?/U+, U?/U?, U+/V?, V+/V+, W+/V?, W?/W? and W+/U?, where “U,” “V” and “W” represent three phases of the individual armature coils while “+” and “?” denote winding polarities. Among all harmonic components of magnetomotive forces produced by the armature coils, harmonic components of orders lower than a synchronized component can be reduced in this rotating electric machine. This structure decreases eddy currents flowing in the field pole unit, resulting lower eddy current loss in the field pole unit of the rotating electric machine.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: October 20, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazumasa Ito, Kouki Naka, Masatsugu Nakano, Manabu Kobayashi
  • Patent number: 7605515
    Abstract: A monophase transverse circuit has two rows of cylindrical air gaps which are provided with conductors between terminal pairs, the terminal pairs are rotated at a quarter turn in order, a coil in the form of a flat double U-shaped arch remains global having consequent terminals by defining meanders between terminals which are laterally introducing opposite to a meander and whose sheets are now progressively attacked on one row of cylindrical or flat air gaps, thereby balancing axial forces, axial and opposite currents between adjacent slots convert a preceding ring-shaped flux into radial fluxes in the terminals by acting upon the rotor terminals with the same pitch and polarized by induction.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: October 20, 2009
    Inventor: Gerard Koehler
  • Publication number: 20090256443
    Abstract: A hollow ring torus permanent magnet generator, with a sphere shaped permanent magnet which spins/revolves within the hollow ring torus passing through insulated copper magnet wire windings which are wound around the exterior portion of the ring torus shaped body which, has two or more coils that said sphere magnet passes through forcing electrons through insulated copper coils which, produces electrical current sufficient to power light emitting diodes or a number of low voltage electrical device. Can be encapsulated within a number of devices i.e., flashlight body, fishing lure body or mounted on the axis of a device i.e., spinning fan blade, tire to produce low voltage as the device spins or moves in a rolling motion allowing the sphere magnet to pass through the insulated copper coil windings.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 15, 2009
    Inventor: Randal Scott Turner
  • Patent number: 7600311
    Abstract: A method for producing a magnetically excitable core for an electrical machine, by which in a method step (S1), the core, having a substantially parallelepiped shape with slots extending parallel on one side, is furnished, into whose slots, in a method step (S2), the core winding is inserted by its winding sides, and then in a method step (S3), the core together with the core winding is reshaped into a cylindrical ring shape with radially inward-oriented slots, is proposed. The method is characterized by a further step, according to which in each case all winding sides that are inserted into each slot are pressed into a slot shape in a tool and reshaped before being inserted into the slot.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: October 13, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Kreuzer, Eberhard Rau, Adam Willmott, Alan Fussey, Williams Neil, Martin Henne, Klaus Pflueger
  • Patent number: 7586229
    Abstract: A motor includes a ferromagnetic member with first and second portions, a conductive wire wrapped around the first portions of the ferromagnetic member, and at least one magnet rotatably coupled to the ferromagnetic member having first and second poles and generating magnetic flux. The ferromagnetic member and the at least one magnet are configured such that at least a portion of the magnetic flux passes from the first pole of the at least one magnet, into the first portions of the ferromagnetic member, to the second portions of the ferromagnetic member, from the second portions of the ferromagnetic member, and into the second pole of the at least one magnet.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: September 8, 2009
    Assignee: Honeywell International Inc.
    Inventor: Pablo Bandera
  • Patent number: 7582999
    Abstract: An electric machine which includes a magnetically inducible core (60), at least three elongated first, second and third current carrying conductors (64-66) passing through a respective aperture (68) through the core, a first end (15, 69) of the first conductor and a first end of the second conductor are electrically connected by a first bridging member (8) located on a first side of the core, a second end of the second conductor and a second end of the third conductor are electrically connected by a second bridging member (8) located on a second side of the core (FIGS. 4, 5).
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: September 1, 2009
    Assignee: Intelligent Electric Motor Solutions Pty Ltd
    Inventor: Donald Alfred Atkinson
  • Patent number: 7583000
    Abstract: A starting system and method for starting a salient-poled-rotor electric motor having a stator with a plurality of spaced salient poles, a plurality of field coils of unchanging polarity, and a plurality of armature coils, wherein each field coil of the plurality of field coils at least partially overlaps an armature coil of the plurality of armature coils, and wherein variable excitement of the armature coils alternately creates a magnetic pole force in every other pole of the plurality of spaced salient poles of the stator. In such motors, the stator has a first position, wherein the rotor is in stasis with respect to the stator and torque between the rotor and the stator is substantially minimized, and a second position, wherein torque between the rotor and the stator is substantially maximized. A drive circuit provides current to the field coils and the armature coils. A start circuit is provided for regulating the drive circuit to vibrate the rotor to the second position.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: September 1, 2009
    Assignee: Tri-Seven Research, Inc.
    Inventors: Gary L. Durham, Harold S. Durham
  • Patent number: 7578047
    Abstract: A method of stitching a plurality of interconnect wires on a stator of an electromagnetic machine is disclosed. The stator includes a plurality of discrete and individually wound stator segments having end caps positioned on the segments. The end caps have wire isolation features, including hooks, shelves and ledges, for separating the interconnect wires routed on the stator to electrically interconnect the segments. The method includes routing the interconnect wires between portions of the stator such that portions of the interconnect wires overlap and separating the overlapping portions in an axial direction with the wire isolation elements.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: August 25, 2009
    Assignee: Emerson Electric Co.
    Inventors: Weirong Wang, Paul G. Michaels, John Scott Rose, Mark E. Carrier, Jason J. Jurkowski
  • Publication number: 20090206693
    Abstract: Electrical output generating devices and driven electrical devices having tape wound core laminate rotor or stator elements. The tape wound core portions enhance magnetic flux and may be shaped and cut to receive magnet and/or flux conducting portions in corresponding stator or rotor portions of devices. The devices can include cooling features integral with the stator and/or rotor portions and superconducting elements. The tape wound core portions can be contained in housings and/or be impregnated with adhesive or other bonding so as to maintain shape and to protect the tape wound core portions during operation of the device. In some variations, the housings can include features for simplifying the adhesive/bonding process.
    Type: Application
    Filed: May 9, 2008
    Publication date: August 20, 2009
    Inventors: David Gregory Calley, Thomas Janecek
  • Patent number: 7576507
    Abstract: A combined motor-battery system comprising an electric power source adapted to convert self-originating electrical current to mechanical power utilizing a set of common functional structures. Preferred embodiments include an electrochemical cell comprising field reactive electrodes that directly produce extractable mechanical forces in the presence of a magnetic field.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: August 18, 2009
    Inventor: Jack C. McVickers
  • Patent number: 7571533
    Abstract: A method of manufacturing a micro flux gate sensor and a micro flux gate sensor manufactured according to the method are provided. The method includes operations of forming a lower coil portion of an excitation coil and a magnetic field detecting coil on a wafer, forming connection portions with a certain height at predetermined positions of the lower coil portion, forming a first insulation layer to cover the lower coil portion and the connection portions, forming a magnetic core on the first insulation layer, forming a second insulation layer to cover the magnetic core and forming an upper coil portion electrically connected to the connection portions to form the excitation coil and the magnetic field detecting coil, and forming a third insulation layer to cover the upper coil portion.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: August 11, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung-won Na, Jingli Yuan
  • Patent number: 7569966
    Abstract: A stator coil, being a rectangular coil, is wound on a salient pole, striding across a plurality of slots, while being inserted sequentially through the inlet of a predetermined slot of the stator core. The stator coil comprises two slot inserts and to be inserted into the slot; two coil ends and located outside the end of the slot; and four twist sections arranged between the slot inserts and coil ends, processed by twisting. In the twist sections, twisting is applied to ensure that the surface of the rectangular coil in the second coil end will be opposite to the surface of the rectangular coil in the first coil end. The start of winding of the rectangular coil and the end of winding of the same coil are located on the same surface. Thereby, a rotating electrical machine with the large internal dimensions without increasing the external dimensions is achieved.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: August 4, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Yasuyuki Saito, Takashi Yasuhara, Hidemitsu Kobayashi
  • Patent number: 7569962
    Abstract: An A-phase brushless motor, where A is an integer greater than or equal to 2, includes a stator and a rotor. The stator has q stator poles, where q is an integer greater than or equal to A. The stator poles form S stator pole sets each consisting of A stator poles each of which corresponds to one of A phases, where S is an integer equal to (q/A). The rotor has p rotor poles, where p is an integer greater than or equal to 2, and is so arranged that the rotor poles face the stator poles. Further, in the brushless motor, p?q, and the stator poles are arranged in a circumferential direction of the motor such that a difference in electrical angular position between any adjacent two of the A stator poles in each of the S stator pole sets is equal to (360°/A).
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: August 4, 2009
    Assignee: Denso Corporation
    Inventors: Tomokazu Ishikawa, Masayuki Nashiki
  • Patent number: 7567005
    Abstract: A long stator motor, particularly for driving a magnetic levitation transport system, includes a stator iron, inside of which grooves for accommodating cable windings are provided. At least two cable windings are placed one above the other by running at least two cables inside each groove.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: July 28, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventors: Reinhard Hoffmann, Jörg Lehmpfuhl, Rüdiger Polley, Robert Schmid, Wolfgang Spaeth, Falk-Henner Wagner, Günter Wagner, Benno Weis
  • Patent number: 7564159
    Abstract: An automotive alternator has a stator winding that is made up of a plurality of U-shaped conductor segments wound through slots in a stator core. Each of the U-shaped conductor segments is connected at one end thereof to an other end of one of the U-shaped conductor segments through a joint. Some of the joints are each elongated from tips of connected two of the conductor segments in an axial direction of the stator core to have a longitudinal sectional area much greater than a transverse sectional area of the conductor segments and function as radiator fins to dissipate heat from the stator winding.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: July 21, 2009
    Assignee: Denso Corporation
    Inventor: Tooru Ooiwa
  • Publication number: 20090179530
    Abstract: Disclosed is an improved stator for a dynamoelectric machine including a stator core which has a plurality of core slots extending axially from a first end of the stator core to a second end of the stator core. The stator also includes a stator winding having a plurality of phases. Each phase of the stator winding includes at least a first filar. The first filar extends around the stator core and form a plurality of layers and has a plurality of slot segments disposed in the plurality of core slots. The slot segments are alternately connected at the first and second ends of the stator core by a plurality of end loop segments. The slot segments are configured such that at least two consecutive slot segments are disposed in substantially the same radial position relative to additional slot segments of the plurality of slot segments disposed in the respective core slots, and the at least two consecutive slot segments are disposed at differing radial distances from a central axis of the stator core.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 16, 2009
    Applicant: REMY INTERNATIONAL, INC.
    Inventor: Kirk Neet
  • Patent number: 7560835
    Abstract: A primary part of an electrical induction machine, especially a synchronous motor or a linear motor, includes a plurality of modules which each have teeth situated in a row having at least partially encircling slots, in the slot of each tooth a coil is wound around this tooth, and the coils of a single module are connected to a single phase of a rotary current network. The number of modules in the primary part is equal to the number of current phases or an integral multiple thereof. A single module includes an uneven number of teeth but at least three teeth, and teeth directly adjacent to one another of a single module include coils that have an opposite winding direction, which generates an opposite magnetic field polarity at the teeth. An electrical induction machine, especially a synchronous motor or a linear motor, includes a primary part and a secondary part, working together with the primary part via an air gap, which may have permanent magnets as rotor magnets.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: July 14, 2009
    Assignee: Bosch Rexroth AG
    Inventors: Ingolf Groening, Christian Kaehler
  • Patent number: 7554238
    Abstract: The present invention provides a multi-winding motor. Two three-phase exciting windings Sa, Sb are wound on each of the magnetic pole sections of divided cores 9. Two kinds of discrete winding wirings A, B are wound together with the same winding number onto each of the magnetic pole sections 13A-13L of the divided cores 9. Divided cores 9 wound with the discrete winding wirings A, B are annularly disposed, and are connected in parallel with each other so that the discrete winding wirings are arranged in the order of A, B, A, B . . . within the same connection, and the exciting windings are star-connected to construct two three-phase exciting windings Sa, Sb.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: June 30, 2009
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Toshihito Miyashita, Shintarou Koichi, Kazuyoshi Murata, Masanori Sakai
  • Patent number: 7550953
    Abstract: A permanent magnet generator voltage regulation system controls the output voltage of a permanent magnet generator. The output voltage of the permanent magnet generator is controlled by configuring the electrical connection of the stator coils. A monitoring device monitors the output voltage generated by the PMG, and a controller selectively configures the stator coil configuration based on the monitored output voltage. A switch array having a number of switches is connected to the stator coils, the switches being controlled by the controller to configure the electrical connection of the stator coils. For instance, to maximize output voltage generated by the PMG, the controller causes the switch array to connect the stator coils in series with one another. To reduce the output voltage, the controller causes the switch array to connect at least some of the stator coils in parallel with one another. In this way, the output voltage of the permanent magnet generator can be coarsely controlled.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: June 23, 2009
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Mahesh J. Shah
  • Publication number: 20090152973
    Abstract: A winding module for a motor includes at least one support and a plurality of windings positioned on and supported by the support. The windings are electrically connected to each other and include a plurality of wire connections. A packaging body encloses the support and the windings. The packaging body includes a mounting hole for receiving an axle tube of a motor. A plurality of electrical connection members are respectively coupled with the wire connections. Each electrical connection member is partially exposed outside the packaging body.
    Type: Application
    Filed: January 31, 2008
    Publication date: June 18, 2009
    Inventors: Alex Horng, Tso-Kuo Yin