Armature Or Primary Patents (Class 310/195)
  • Publication number: 20100308682
    Abstract: A stator manufacturing method for a motor comprises a preliminary step configured to provide a strip plate having at least one wound portion on a surface thereof; a winding step configured to provide a coil unit and wind the coil unit around the at least one wound portion of the strip plate; a rolling step configured to roll up the strip plate into an unshaped sleeve having a central hole, wherein the at least one wound portion and the coil unit are located inside the central hole; and a shaping step configured to shape the unshaped sleeve into a shaped sleeve.
    Type: Application
    Filed: April 12, 2010
    Publication date: December 9, 2010
    Applicant: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Tso-Kuo Yin
  • Publication number: 20100308681
    Abstract: The windings (12) wound around each of the teeth (9) form two coil groups (71, 72) of three-phase concentrated windings which are disposed point-symmetrically to each other with respect to the rotational shaft. Each of the coil groups (71, 72) includes a first coil (33), in which the windings (12) are wound around the teeth in a forward direction, and a second coil (34), in which the windings (12) are wound around the teeth in a reverse direction. When each of the teeth (9) is allocated with a U phase, a V phase, and a W phase in this order in a circumferential direction so that the first coil (33) wound for each phase is set to be coils of the U phase, the V phase, and the W phase, and the second coil (34) wound for each phase is set to be coils of the ?U phase, the ?V phase, and the ?W phase, the coils of the U, ?W, V, ?U, W and ?V phases are electrically connected between the adjacent segments (14) in this order.
    Type: Application
    Filed: January 28, 2009
    Publication date: December 9, 2010
    Inventors: Yoshichika Kawashima, Naoki Shioda
  • Patent number: 7847464
    Abstract: The object of the invention is to provide an armature which is in good rotational balance, where the total number of the coils to be disposed in the slots of the rotary electric machine can be freely set when winding coils on the armature core. Coils are wound on an outer periphery of an armature core 3 by use of a winding device 7 which is provided with sixteen nozzles 11b movable in the axial direction to draw out the coils to thirty two slots formed on the outer periphery of the armature core 3, wherein sixteen coils 5 are simultaneously wound through a single winding operation and the winding operation with respect to the slot 3c is performed three times in such a manner that the total number of the coils 5 in the slots 3c becomes 96 (C) so that the number obtained by dividing the total number of the coils 5 C by twice the number of the slots does not become a natural number.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: December 7, 2010
    Assignee: Mitsuba Corporation
    Inventors: Yoshinori Kojima, Shuji Uehara, Yasuhiro Takebe, Takayuki Ishizeki, Kazuo Iwashita
  • Publication number: 20100301688
    Abstract: The invention relates to a winding body for an electric motor and, in particular a brushless direct current electric motor (200) with an air gap winding. At least two bobbins (12, 14; 22, 24; 32, 34) per stand (10, 20, 30) are provided. The invention also relates to a method for the production of said winding body. According to the invention, the bobbins (12, 14; 22, 24; 32, 34) of a strand (10; 20; 30) of the winding body (100) are wound immediately behind each other.
    Type: Application
    Filed: May 5, 2008
    Publication date: December 2, 2010
    Inventors: Martin Schulz, Hans Rindsbacher, Werner Rieker, Gerhard Oberli, Andre Zschocke
  • Publication number: 20100295405
    Abstract: A motor includes: a stator including a stator core, a plurality of slot portions, and a plurality of coils, the stator core including a plurality of stator core pieces, the stator core piece including a teeth portion having a distal end portion and two side portions, a yoke portion, and a claw portion formed at one of the two side portions and at the distal end portion, the plurality of stator core pieces being connected so that a plurality of claw portions protrude in the same circumferential direction, the stator core thereby being formed in a cylindrical shape, each of the slot portions being formed between adjacent teeth portions and formed between the plurality of stator core pieces, the plurality of coils being inserted into the plurality of slot portions, the plurality of coils including a first coil, a second coil, and a third coil which form three phases, the first coil, the second coil, and the third coil being bridged between two of the slot portions, the first coil including a first coil end porti
    Type: Application
    Filed: May 20, 2010
    Publication date: November 25, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Satoshi SHIKATA
  • Publication number: 20100289359
    Abstract: An electropermanent magnet-based motor includes a stator having at least one electropermanent magnet, at least one coil around the electropermanent magnet configured to pass current pulses that affect the magnetization of the magnet, and a rotor that is movable with respect to the stator in response to changes in the magnetization of the electropermanent magnet. A wobble motor has a stator with a centrally-located core from which arms radiate outward, an electropermanent magnet and coil on each arm, and a rotor exterior to the stator such that the rotor can rotate around the stator arms. A rotary motor has a centrally-located rotor that rotates about its axis and a stator exterior to the rotor such that the rotor may rotate within the stator arms, the stator including an anteriorly-located stator core from which stator arms radiate inward toward the rotor, and an electropermanent magnet and coil on each stator arm.
    Type: Application
    Filed: January 27, 2010
    Publication date: November 18, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Ara Knaian, Neil Gershenfeld, Maxim Lobovsky
  • Publication number: 20100289373
    Abstract: Provided is a synchronous motor comprising a rotor that includes magnetic poles arranged at equal intervals in the circumferential direction, and a stator that includes stator teeth arranged at intervals in the circumferential direction. Stator teeth other than a reference tooth are displaced from positions corresponding to integral multiples of the phase difference of two-phase alternating currents with respect the stator tooth in electrical angle. Both a first-type coil supplied with a first phase and a second-type coil supplied with a second phase are wound by concentrated winding on the stator teeth arranged at the displaced positions.
    Type: Application
    Filed: October 26, 2009
    Publication date: November 18, 2010
    Applicant: PANASONIC CORPORATION
    Inventor: Noriyoshi Nishiyama
  • Publication number: 20100289370
    Abstract: The invention relates to an electric machine (1), in particular a synchronous machine, comprising a stator arrangement (3) having twelve stator teeth (2) and a rotor (6) having ten rotor poles (4). Said rotor poles (4) are separated by air gaps (9) and the rotor poles (4) are embodied as sinus poles.
    Type: Application
    Filed: April 28, 2008
    Publication date: November 18, 2010
    Applicant: Robert Bosch GMBH
    Inventors: Karl-Juergen Roth, Kurt Reutlinger
  • Publication number: 20100289374
    Abstract: The disclosed embodiments relate to a stator and manufacturing method of the stator in which the coil conducts of the stator have three phases (a U phase, V phase, and W phase), which are arranged in a distributed winding form in a plurality of slots of a stator core. The coil conductors of the three phases each include a slot conductor portion that is disposed in the slot, and a pair of coil end conductor portions disposed on both axial sides of the stator core to connect the slot conductor portions disposed in the different slots. The stator also includes a first side transition wire portion in each phase that is disposed further toward a radial inner side than an inner peripheral end surface of a tooth provided on each circumferential side of the slot so as to overlap another first side transition wire portions in the axial direction.
    Type: Application
    Filed: July 10, 2009
    Publication date: November 18, 2010
    Applicant: AISIN AW CO., LTD
    Inventors: Kiyotaka Koga, Masaki Saito
  • Publication number: 20100289372
    Abstract: An electric rotating machine is disclosed which includes a stator and a rotor. The stator includes a hollow cylindrical stator core and first and second three-phase stator coils. The stator core has a plurality of stator core teeth formed at a predetermined pitch in a circumferential direction of the stator core. Each of the first and second three-phase stator coils is comprised of three phase windings. Each of the phase windings of the first and second three-phase stator coils is wound around each of a predetermined number of the stator core teeth by a predetermined number of turns. The rotor has a plurality of magnetic poles the polarities of which alternate between north and south in the circumferential direction of the stator core. Further, the first and second three-phase stator coils are offset in the circumferential direction of the stator core to have a phase difference of ?/6 therebetween.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 18, 2010
    Applicant: DENSO CORPORATION
    Inventors: Makoto Taniguchi, Asuka Tanaka
  • Publication number: 20100283349
    Abstract: A polyphase electrical machine, in particular, a polyphase generator, includes a stator which features a core body having a circumferential slot pitch, and a winding configuration having a plurality of windings. It is provided that each winding and each slot of the group of slots that extends over one pole pitch is assigned to one of the phases, and the windings have winding sections that lie in assigned slots and between which, in each case, a winding-head connection is formed, the winding-head connections of different windings being disposed radially in layers relative to each other, and the number of phases being five. A method for producing a polyphase electrical machine is also provided.
    Type: Application
    Filed: January 29, 2008
    Publication date: November 11, 2010
    Inventors: Gert Wolf, Norbert Pfitzke, Thomas Berger, Eberhard Rau, Alexander Shendi
  • Publication number: 20100270893
    Abstract: An electric motor (100) for operating a shutter or solar protection element in a building, comprising at least two phases (10; 20, 30; 50, 60) and a magnetized rotor (16; 40; 70) common to both phases, each phase being relative to a rotor portion (41, 42; 71; 72) in the direction of the axis of the rotor and comprising two windings (14, 15), wherein each phase comprises an insulating yoke frame (13) on which the two windings are produced and which has a central portion (131) separating the windings, the central portion being provided with a first through-recess (134) able to surround a rotor portion passing through the phase.
    Type: Application
    Filed: December 23, 2008
    Publication date: October 28, 2010
    Applicant: Somfy SAS
    Inventors: Serge Bruno, Pierre-Emmanuel Cavarec
  • Patent number: 7821170
    Abstract: A DC motor, has a stator housing accommodating a permanent magnet stator; a rotor, rotatably mounted confronting the stator, the rotor having a shaft, a rotor core fitted to the shaft and having laminations forming salient poles, a commutator fitted to the shaft adjacent one end of the rotor core, windings wound about poles of the rotor core and terminated on the commutator, the windings each being wound around a single pole of the rotor; and brush gear comprising brushes in sliding contact with the commutator for transferring electrical power to the windings.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: October 26, 2010
    Assignee: Johnson Electric S.A.
    Inventors: RuiFeng Qin, Ling Yang, BaoTing Liu, TingTuan Xu
  • Publication number: 20100264772
    Abstract: A direct current motor is provided that includes an armature core, a commutator, coils, positive brushes, and negative brushes. The armature core includes a stator. The stator has magnets the number of which is represented by P (where P is an even number greater than or equal to six). The coils are wound about the teeth by duplex wave winding. Alternatively, the coils are wound about the teeth such that each pair of coils that are spaced apart by 180° are connected common ones of the segments. Each of the positive brushes and the negative brushes has an angular width WB, at which it slides on the segments. When the angular width of the arrangement pitch of the segments is represented by WP (WP=360°/the number of the segments), and the angular width of the clearance between each pair of circumferentially adjacent segments is represented by WU, the angular width WB is set to satisfy the expression: WB?(4/P)×WP+WU.
    Type: Application
    Filed: April 16, 2010
    Publication date: October 21, 2010
    Applicant: ASMO CO., LTD.
    Inventors: Tomohiro AOYAMA, Kuniaki MATSUMOTO, Toshio YAMAMOTO
  • Patent number: 7812497
    Abstract: A total number of windings in an armature is an even number. The windings are divided into a first winding group and a second winding group. The windings of the first winding group are arranged one after another at generally equal angular intervals without overlapping with each other. The windings of the second winding group are arranged one after another at generally equal angular intervals without overlapping with each other and are wound separately from the windings of the first winding group.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: October 12, 2010
    Assignee: Asmo Co., Ltd.
    Inventors: Kazushi Sugishima, Toshiyuki Masuda
  • Publication number: 20100253161
    Abstract: A stator in which coil conductors of three phases are disposed in a plurality of slots provided in a stator core, wherein the coil conductors are formed by connecting a plurality of slot conductor portions disposed in the slot, a plurality of coil end conductor portions extending in a circumferential direction of the stator core on an outer side of an axial end surface of the stator core, and a plurality of upstanding conductor portions, each of which connects the coil end conductor portion and the slot conductor portion.
    Type: Application
    Filed: December 19, 2008
    Publication date: October 7, 2010
    Applicant: AISIN AW CO., LTD.
    Inventor: Toru Kuroyanagi
  • Patent number: 7808145
    Abstract: An armature where at least one of a first winding wire and a second winding wire is wound around slots that are opposed to all magnetic poles serving as a same magnetic pole in a predetermined winding direction so as to correspond to a predetermined winding number as a total winding number between respective slots, so that the plurality of coils are formed, and a slot from which the first winding wire is led out and a slot into which the second winding wire is led are located circumferentially at both sides of commutator segments with which the first winding wire and the second winding wire are conductive.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: October 5, 2010
    Assignee: Mitsuba Corporation
    Inventor: Masaki Taguchi
  • Publication number: 20100244612
    Abstract: A motor winding arrangement that is capable of delivering relatively flat torque over a wide range of speeds, thus achieving increasing power throughout its operating range, is provided. In a multi-phase, e.g., three-phase, motor utilizing the winding arrangement of the invention, each winding layer corresponds to one phase of the motor and occupies every slot of the stator. The poles for each winding layer are comprised of concentric and non-overlapping coils.
    Type: Application
    Filed: March 30, 2009
    Publication date: September 30, 2010
    Applicant: Tesla Motors, Inc.
    Inventor: Yifan Tang
  • Publication number: 20100244599
    Abstract: An exemplary power system may include an electric machine with multiple sets of stator windings, each set of windings being coupled through a separate switch matrix to a common voltage bus, and each of which may be spatially arranged in full pitch around the stator such that stator flux harmonics are substantially reduced. The reduced stator flux harmonics may be associated with phase current harmonic content. In an example application, such power systems may operate in a generating mode to transfer mechanical energy to electrical energy on a DC voltage bus. In some illustrative embodiments, the power system may provide both high-power and high-speed (e.g., 1MW at 8000 rpm or above) motoring and/or generating capability suitable, for example, for on-board (e.g., marine, aviation, traction) power systems.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Inventors: Daniel M. Saban, Raed H. Ahmad, Zhiguo Pan
  • Publication number: 20100237824
    Abstract: An induction charger for charging an electronic device includes a carrying car, a transmission assembly, a permanent magnet, an alternating current power supply, and an induction coil. The carrying car includes a base defined at least four slots scatted therein, a cover defining a through hole, at least two rotatable shaft, and at least two pairs of wheels positioned on a corresponding rotatable shaft and received in and passed through one corresponding slot. The transmission assembly includes a gear case defining a first through hole and a second through hole, a first hollow shaft non-rotatably fixed to the permanent magnet, and a second hollow shaft being inserted into a corresponding rotatable shaft. The induction coil is positioned in the base and aligned with and substantially parallel to the permanent magnet, and is electrically connected to the alternating current power supply.
    Type: Application
    Filed: June 17, 2009
    Publication date: September 23, 2010
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: KIM-YEUNG SIP
  • Publication number: 20100231082
    Abstract: A stator which comprises a core, slots provided in the core and a coil comprising a plurality of windings, in which each winding consists of at least one conductor which is arranged in slots of the core associated with the winding, forming axial ripples and forming overall a spiral coaxial to axis A of the core which consists of a set of turns radially superimposed, wherein each conductor comprises a pair of electrical lead wires which are adjacent and which are arranged at the same radial dimension relative to one another, at each point of the conductor. The invention also proposes a method for constructing the stator.
    Type: Application
    Filed: January 5, 2007
    Publication date: September 16, 2010
    Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Denis Bodin, Jean-Pierre Chochoy, Alain Defebvin, Michel Jaze, Denis Even
  • Publication number: 20100213782
    Abstract: A five-phase motor includes a stator and a movable member movable relative to the stator in a preset direction. The stator includes a stator core provided with five slots within 360 electrical degrees thereof. The five slots are arranged in the preset direction at preset first pitches. The stator includes at least one set of five-phase stator windings. The five-phase stator windings are arranged in the five slots relative to each other such that each of the five-phase stator windings is wound at a preset second pitch. The second pitch substantially corresponds to two of the first pitches.
    Type: Application
    Filed: February 22, 2010
    Publication date: August 26, 2010
    Applicant: DENSO CORPORATION
    Inventors: Masayuki NASHIKI, Naoki TANAKA, Hiroyasu KUDO
  • Patent number: 7781933
    Abstract: The present invention is intended to provide a winding arrangement of single star connection for a rotating electrical machine, capable of enhancing insulation performance in coils of the same phase. In such winding arrangement, a first coil U1 to a sixth coil U6 are formed respectively in coil arranging parts 1U to 6U. Next, a coil arranging part 7U is skipped and the seventh coil U7 is formed in a coil arranging part 8U. Then, a coil formed at the end of winding (eighth coil U8) is formed in the skipped coil arranging part 7U.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: August 24, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Koide, Yasuhiko Ishimaru, Hiroshi Hattori
  • Publication number: 20100187938
    Abstract: An armature for a rotating electrical machine, the armature includes a cylindrical core having a plurality of longitudinally extending slots that are dispersedly arranged in a circumferential direction; and coils wound around the slots, wherein each of the slots is formed such that an inner circumferential opening thereof that is open radially inwardly is smaller in a circumferential width than a slot interior positioned on a radially outer side of the inner circumferential opening, and linear conductors forming the coils are each formed to be larger in the circumferential width than the inner circumferential opening.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 29, 2010
    Applicant: AISIN AW CO., LTD.
    Inventors: Yoshihisa Yamamoto, Kiyotaka Koga, Shinichi Otake, Keiichi Shinohara
  • Publication number: 20100187937
    Abstract: An electric machine, as well as a method for operating such a machine, particularly for motorically moving movable parts in a motor vehicle, having a stator and a rotor, slots being developed on the rotor, in which individual conductor loops of electric coils are situated, which are contacted to commutator segments of a commutator and to an evaluating unit, which ascertains rotational speed data from the ripple of a motor current signal. The number of individual conductor loops of the coils is selected in such a way that the sequence of the number of the conductor loops in the order of their commutation approximately represents a sine function.
    Type: Application
    Filed: June 6, 2008
    Publication date: July 29, 2010
    Inventors: Thomas Faber, Gerald Roos
  • Publication number: 20100187939
    Abstract: A stator segment for a stator of a ring generator is provided. The stator segment includes a base element and a coil element attached to the base element. The base element includes a connection region, wherein the connection region is adapted for attaching a connecting coil element which connects the stator segment to a further stator segment.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 29, 2010
    Inventor: Henrik Stiesdal
  • Publication number: 20100181860
    Abstract: This invention presents a novel method for designing and manufacturing electrical windings for electrical machines. The presented manufacturing technique gives possibilities for an increased filling factor compared to conventional technique and improved heat transfer through application of thermally conductive compounds. Proposed winding schemes avoid intersection between different winding layers in the end-winding region. This helps automating winding production, simplifies insulation between winding layers and, if this is necessary, simplifies insertion of the winding. Both these factors affect the cost and reliability of the winding. This method is applicable for a broad range of electrical machines and allows easy automation of the winding process.
    Type: Application
    Filed: January 19, 2009
    Publication date: July 22, 2010
    Inventor: Sergey Pulnikov
  • Publication number: 20100176675
    Abstract: A DC electric rotating machine, mainly for the starter of an automotive vehicle. The machine includes a stator including a wound structure forming a plurality of poles extending along the circumference of the stator, a rotor, and a set of brushes adapted for the electric supply of the rotor by commutation of the electric current in sections of the rotor. The wound structure of the stator includes a plurality of slots between two central parts of consecutive poles of the stator, these slots being formed in a magnetic body of the stator. At least one of the slots including at least one conducting segment forming a winding of an electrical coil.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 15, 2010
    Inventors: Nicolas Labbe, Benoit Dupeux, Jean-Paul Yonnet
  • Publication number: 20100170690
    Abstract: The invention is based on a stator having an insulation which is arranged around a coil winding package, wherein a stator packet is arranged on the insulation. It is proposed that the insulation means be embodied as a self-supporting sleeve.
    Type: Application
    Filed: May 5, 2008
    Publication date: July 8, 2010
    Inventors: Werner Rieker, Gerhard Oberli
  • Publication number: 20100156230
    Abstract: An alternator for motor vehicles, having a rotor, whose poles are developed as claw-poles. In order to improve the design options of the stator of the machine, its multiphase winding is developed as a fractional-slot winding, whereby, in particular with respect to the selection of the number of slots, many additional options are created, by which both the production is made clearly simpler and less costly and, at the same time, the electrical properties are able to be improved.
    Type: Application
    Filed: June 4, 2007
    Publication date: June 24, 2010
    Inventors: Gert Wolf, Alexander Shendi, Kurt Reutlinger
  • Publication number: 20100148618
    Abstract: A stator, with a stator core, a plurality of windings with a plurality of in-phase windings and anti-phase windings, a plurality of slots, an insulating plate, a plurality of cylinders, and a plurality of teeth. The teeth protrude from the stator core. The winding is received in the slot and wraps around the tooth. The insulating plate is disposed on the surface of the stator core. The cylinders are disposed on the insulating plate. A transition line is disposed between two adjacent teeth and hangs on the cylinder. A plurality of supporting mechanisms is disposed on the cylinders.
    Type: Application
    Filed: July 14, 2009
    Publication date: June 17, 2010
    Applicant: ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD.
    Inventor: Xu ZHANG
  • Publication number: 20100148616
    Abstract: At least two asynchronous AC induction electrical machines in series connection with the power source are respectively made with the main winding and control winding for operating the electrical machines, wherein the individually driven loading operations of the two electrical machines in cross-interlockingly series connection being series connected with the power source are led by the changes of individual electrical machine driving loading statuses to appear variable impedance operation so as to change the end voltage ratio between individual electrical machines in cross-interlockingly series connections.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Inventor: Tai-Her Yang
  • Publication number: 20100148619
    Abstract: A stator, comprising a stator iron core, a plurality of stator windings comprising multiple in-phase windings and anti-phase windings, a plurality of end insulators, a plurality of teeth, and a plurality of slots. The winding wires of the in-phase windings are firstly wrapped around two adjacent teeth and then cross four teeth thereof. A wire winding method for a stator, comprising: wrapping the winding wires of the in-phase windings around two adjacent teeth; crossing four teeth; and wrapping the winding wires of the in-phase windings around next two adjacent teeth. The winding directions of the two adjacent teeth of the in-phase windings are opposite. The winding directions of adjacent teeth of the anti-phase windings are the same.
    Type: Application
    Filed: July 14, 2009
    Publication date: June 17, 2010
    Applicant: Zhongshan Broad-Ocean Motor Co., Ltd.
    Inventor: Xu ZHANG
  • Publication number: 20100148617
    Abstract: At least two asynchronous AC induction electrical machines in parallel connection with the power source are respectively made with the main winding and control winding for operating the electrical machines, wherein the individually driven loading operations of the two electrical machines in cross-interlockingly parallel connection being parallel connected with the power source are led by the changes of individual electrical machine driving loading statuses to appear variable impedance operation so as to change the end voltage ratio between individual electrical machines in cross-interlockingly parallel connections.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Inventor: Tai-Her Yang
  • Publication number: 20100141058
    Abstract: Provided are a stator for an aspiration motor, an aspiration motor and an in-car sensor using the same, in which a bobbin is integrally formed with a stator, to thus use an inexpensive insulation wire and enhance a productivity and lower an inferiority using an insert-molding technology. The stator for the aspiration motor includes a stator support plate, a support boss which is vertically extended from the central portion of the stator support plate, a bobbin which is bent and formed on the lateral surface of the support boss, and which is separated from the upper side surface of the stator support plate, to thereby provide a space, and a stator coil which is formed by making a wire wound in the space provided by the bobbin.
    Type: Application
    Filed: April 8, 2008
    Publication date: June 10, 2010
    Inventors: Byoung Kyu Kim, Byoung Soo Kim
  • Publication number: 20100141078
    Abstract: The wire 30 forming the stator winding 20 includes the in-slot portions 40 to be disposed in the slots 14 and 15 of the stator core 12 and the turned portions 42 connecting the in-slot portions 40 disposed in the circumferentially different slots 14 and 15. The turned portions 42 formed on axial opposite end sides of the stator core 12. The crank portion 44 which does not twist is formed at substantially the center of the turned portion 42. Steps are fanned at sections of the turned portion 42 which protrude outside the stator core 12 from the slots 14 and 15. Further, the turned portion 42 of the wire 30 also has two steps 48 formed between the substantially central crank portion 44 and each of the steps 46 formed at the protruding sections of the turned portion 42.
    Type: Application
    Filed: March 4, 2008
    Publication date: June 10, 2010
    Applicant: DENSO CORPORATION
    Inventors: Shinji Kouda, Hiroaki Kajiura, Masahiro Takada
  • Publication number: 20100138127
    Abstract: An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A similar arrangement is proposed for a generator. A coil mounting system for an electric motor or generator includes one or more coil teeth for windably receiving a coil for the motor and a back portion for attachably receiving a plurality of the coil teeth. A traction control system and method for a vehicle having a plurality of wheels independently powered by a respective motor. A suspension control system and method for a vehicle having a plurality of wheels, each wheel being mounted on a suspension arm of the vehicle and being independently powered by a respective motor.
    Type: Application
    Filed: July 13, 2007
    Publication date: June 3, 2010
    Applicant: QED GROUP LIMITED
    Inventor: Martin Boughtwood
  • Publication number: 20100133944
    Abstract: In a rotating electric machine, each phase of a plurality of three-phase windings is divided into a plurality of partial windings, disposed on a stator core. For example, the partial windings of the U-phase are distributively arranged on four U-phase winding areas 2U1 to 2U4, and on each of these winding areas, two partial windings overlap through a pair of slots between which two teeth are interposed. At each coincident location of a pair of slots, two partial windings of different three-phase windings overlap. For example, a pair of slots on the U-phase winding area 2U1, a partial winding UA1 of a U-phase winding UA and a partial winding UB3 of a U-phase winding UB overlap. At a pair of slots on the U-phase winding area 2U1, a partial winding UG2 of a U-phase winding UG and a partial winding UB2 of a U-phase winding UB overlap.
    Type: Application
    Filed: July 29, 2009
    Publication date: June 3, 2010
    Applicant: Hitachi, Ltd.
    Inventors: Yukinari FUJISAWA, Toshihiko SAKAI
  • Patent number: 7723890
    Abstract: An electric motor includes an armature core, a commutator including a plurality of commutator segments, a neck disposed between the armature core and the commutator, and a plurality of wires each connected between two adjacent commutator segments and wound around the armature core via the neck. The wires include a first wire connected between first two adjacent commutator segments and a second wire connected between second two adjacent commutator segments positioned opposite to the first two adjacent commutator segments with respect to the axis of the armature core. The first wire and the second wire extend along the neck such that they do not contact with each other.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: May 25, 2010
    Assignee: Makita Corporation
    Inventor: Naoto Sakurai
  • Publication number: 20100102665
    Abstract: The brushless DC electric motor comprises, a rotor including a shaft and a permanent magnet fixed on said rotor shaft, stator including a winding in the shape of a hollow cylinder and composed of a plurality of rhombic single coils made of flat wire. The single coils overlap each other in an imbricated manner, wherein the single coils are performed to form an offset at least in the region of two opposite corners. The winding have legs, wherein half of the legs are located in a first radius and half of the legs are located in a second radius. The motor further comprises a housing having two end plates and supporting said rotor and stator.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 29, 2010
    Applicants: ELECTROMAG SA, MICRONEL AG
    Inventor: Vincent Comte
  • Publication number: 20100096943
    Abstract: A motor includes: a stator having 12n teeth at equal intervals in a circumferential direction of the motor, with a coil being formed on each of the teeth, where n is a natural number; a rotor having magnetic poles, number of magnetic poles being one of 2n, 10n and 14n, where n is a natural number; a three phase first coil group formed by star-connecting the coils formed on the odd-numbered teeth; and a three phase second coil group formed by delta-connecting the coils formed on the even-numbered teeth, connected to the three phase first coil group in parallel.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 22, 2010
    Applicant: JTEKT CORPORATION
    Inventor: Shigetoshi Yamaguchi
  • Publication number: 20100072853
    Abstract: A plurality of permanent magnets are provided at a rotor at equal angular intervals. A plurality of magneto coils are provided at a stator at unequal angular intervals. The number of the plurality of magneto coils is not a multiple of three. The plurality of magneto coils include U-phase magneto coils, V-phase magneto coils and W-phase magneto coils. The U-phase magneto coils are arranged and connected such that phases of currents passing through the U-phase magneto coils are equal. The V-phase magneto coils are arranged and connected such that phases of currents passing through the V-phase magneto coils are equal. The W-phase magneto coils are arranged and connected such that phases of currents passing through the W-phase magneto coils are equal.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 25, 2010
    Applicant: Yamaha Motor Electronics Co., Ltd.
    Inventor: Jun YAMAMOTO
  • Publication number: 20100072932
    Abstract: A fail-passive electro-mechanical actuator utilizing dual controllers and a two-phase brushless motor is provided.
    Type: Application
    Filed: July 30, 2009
    Publication date: March 25, 2010
    Inventors: Eric Seger, Gary L. Frederick, Richard A. Rose, Jerry D. Hielkema
  • 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
  • Publication number: 20100066194
    Abstract: An electric machine, in particular an electrically excited claw pole generator for a motor vehicle, is provided, having a stator winding, the phase terminals of which may be connected in the manner of a pentagram to a rectifier system. The stator winding has a five-phase design, phase terminals situated in adjacent slots being interconnected at least once. All of the phase terminals may be interconnected are situated in adjacent slots.
    Type: Application
    Filed: October 10, 2007
    Publication date: March 18, 2010
    Applicant: Robert Bosch GmbH
    Inventors: Gert Wolf, Norbert Pfitzke
  • Publication number: 20100052460
    Abstract: In a permanent magnet type electrical rotating machine having coils 12 with a deviated electrical angle phase at their magnetic pole positions, a relation of T2>T1 is satisfied where T1 is the number of turns of each of the coils and T2 is the number of turns of each of other coils, or alternatively a relation of R2<R1 is satisfied where R1 is a magnetic resistance of a tooth around which each of the coils is wound and R2 is a magnetic resistance of a tooth around which each of other coils is wound.
    Type: Application
    Filed: August 17, 2009
    Publication date: March 4, 2010
    Inventors: Hidetoshi Koka, Hiroshi Kanazawa, Susumu Terumoto, Masanori Nakagawa
  • 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: 20100054971
    Abstract: A brushless direct current (BLDC) motor has a 3-phase winding 20 and six stator teeth 14, 15 with alternate stator teeth 14 being wound and the remaining stator teeth 15 being left unwound. The winding 20 has three legs, one for each phase and each leg has one coil 22 wound about one of the stator teeth 14. Each leg has a first end A,B,C, arranged to receive electrical power and a second end X,Y,Z, which is connected to the second end of the other legs to form a star connection 24. Selected stator teeth have grooves in a face thereof dividing those teeth into a plurality of stator poles. The motor may be used to drive a fuel pump for an internal combustion engine, typically for a vehicle.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 4, 2010
    Inventors: Yong Bin LI, Wei Feng Yuan, Ning Sun, Xing Ping Wang
  • Publication number: 20100033033
    Abstract: An electric machine, such as a switched reluctance motor (SRM), having a stator housing that allows for stator chuck assemblies to be removed and replaced independently of other stator chuck assemblies is described. The stator housing of the electric machine has a plurality of slots for receiving the stator chuck assemblies and for supporting the chuck assemblies in fixed positions relative to a rotor assembly of the electric machine. In preferred embodiments, the slots are disposed on the exterior surface of the stator housing.
    Type: Application
    Filed: October 15, 2009
    Publication date: February 11, 2010
    Inventors: Weston C. Johnson, Richard M. Currie
  • Publication number: 20100033043
    Abstract: A motor stator is disclosed. Each of a first phase, second phase and third phase of three-phase winding has multiple toroidal coils and crossover wires connecting the coils. The crossover wire of the first phase runs inside the second phase coil and the third phase coil. The crossover wire of the second phase runs over the first phase coil with a guide by guide posts and runs inside the third phase coil. The crossover wire of the third phase runs over the first phase coil and the second phase coil with a guide by the guide posts.
    Type: Application
    Filed: May 22, 2007
    Publication date: February 11, 2010
    Applicant: Pansonic Corporation
    Inventors: Yasutake Seki, Akihiko Yamazaki, Yukinori Nakagawa