Coil Supports And Spools Patents (Class 310/194)
  • Patent number: 8664809
    Abstract: An apparatus (structure) is provided to support a superconductor winding (61) of an electromotive machine. An elongated loop (74) provides radial support to the winding. A base assembly (84) may include a base module (89) arranged to anchor the loop at a proximate end (76) of the elongated loop by way of a tubular coupling (86). The tubular coupling may further provide a mechanical connection relative to an axially-adjacent base module. A bracket assembly (100) may define an interior recess to receive a portion of the winding and to support the elongated loop at a distal end (78) of the elongated loop, such as by way of a support (80). A lateral-extending loop (106) may have a first end connected to the bracket assembly (100) and a second end connected to the base module (89) to transfer to the rotor core lateral loads, which may be experienced by the winding.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: March 4, 2014
    Assignee: Siemens Energy, Inc.
    Inventors: Raul R. Rico, Robert L. Murphy
  • Patent number: 8653712
    Abstract: A superconducting coil whose shape can be modified after it is shaped and a superconducting rotating machine with the superconducting coil are provided. The superconducting coil has an feature that the superconducting coil 1 comprising a superconducting material wire 5 coated with an insulation material and a coil frame 4 on which the superconducting material wire 5 is wound, the coil frame 4 comprising a first member 2 being a thin plate in a circular ring shape and a second member 3 jointed with an inner periphery portion of the first member 2, the first member inner periphery portion extending from the jointed portion toward an outer periphery of the first member, wherein the superconducting material wire 5 is wound between the first member 2 and the second member 3, which constitute the coil frame 4.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 18, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Manabu Hasegawa, Tsuyoshi Wakuda
  • Publication number: 20140035423
    Abstract: An improvement in apparatus and methods of making electrical machines, utilizing a combination of additive manufacturing techniques to create, in particular, small, high efficiency stators, but also useful for making complex rotor structures.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 6, 2014
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: William A. Veronesi, Tahany Ibrahim El-Wardany, Sameh Dardona, Wayde R. Schmidt
  • Patent number: 8638019
    Abstract: An electric motor includes a stator made up of individual segments disposed in the circumferential direction, each individual segment including a core stack around which a winding is provided and at whose axial terminal regions end caps are provided, the winding being produced by a winding wire, an end cap including at least one dome, in particular for delimiting the region of the winding, a wire inlet duct for rerouting the winding wire being provided in the base region of the dome, grooves being provided on the end cap, the distance of one groove with respect to the radially following groove and the diameter of the curvature of the respective groove being smaller than the diameter of the winding wire.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: January 28, 2014
    Assignee: Sew-Eurodrive GmbH & Co. KG
    Inventors: Tobias Stark, Domenik Hettel
  • Patent number: 8638020
    Abstract: A stator structure, including strip shaped stator cores and end insulators. The end insulators are injection molded with the strip shaped stator cores, as a whole. A wire duct is arranged on top of a yoke of each strip shaped stator core and at the bottom of each end insulator. Two ends inside the wire duct are projected with bosses. Coil windings wind around the bosses and pass through the wire duct. The stator structure is simple and easy to mass produce. It can make full use of the slot filling ratio of the strip shaped stator. The invention solves the puncture problem.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: January 28, 2014
    Assignee: Zhongshan Broad-Ocean Motor Manufacturing Co., Ltd.
    Inventor: Jianwei Jin
  • Patent number: 8618714
    Abstract: A vehicular brushless AC generator includes: a bobbin disposed surrounding the axial end face of the thick ring portion of the yoke and the outer circumferential surface of the cylindrical portion so that an exciting coil can be wound thereon; a plate extending radially outwardly from an end of the cylindrical portion, for joining the bobbin to the yoke; and a stator disposed outside the rotor retaining an air gap, in which magnetic flux produced by the exciting coil propagates; wherein the bobbin is provided with a thick portion for extending a creeping distance, formed along the outer circumferential edge of the bobbin joined to the yoke.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: December 31, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hideyuki Hayashi
  • Publication number: 20130342042
    Abstract: A power tool is provided including a housing and an electric motor disposed in the housing. The motor includes a stator having pole pieces mated together and field coils disposed on the pole pieces, the stator having an outside diameter. The motor also includes an armature having an outside diameter that is at least 0.625 of the outside diameter of the stator.
    Type: Application
    Filed: August 22, 2013
    Publication date: December 26, 2013
    Applicant: Black & Decker Inc.
    Inventors: Hung T. Du, Earl M. Ortt, Brandon L. Verbrugge, Garrett P. McCormick, Michael A. Zemlock, Kevin M. Hogan, Jiaqi Zhang, Ren H. Wang, Frank A. Mannarino, Spencer G. Maid, Shane Ashley Moll, James C. Benton
  • Patent number: 8610328
    Abstract: The concentrated winding coil is mounted onto a tooth such that a coil end portion is housed inside a concave space that is formed by the trunk portion and first and second guide portions at two axial ends of the tooth. Third cover portions of an insulating sheet that is disposed on two circumferential sides of the tooth are folded over so as to overlap with each other and extend so as to cover the coil end portion of the concentrated winding coil, and a second leader line that projects outward from a radially inner end portion of the concentrated winding coil is bent and led radially outward parallel to the coil end portion that is covered by the third cover portions.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 17, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinichiro Yoshida, Masaya Inoue, Shogo Okamoto
  • Patent number: 8608462
    Abstract: According to one embodiment, a motor stator includes a substantially cylindrical stator iron core and insulators. The stator iron core includes a yoke, teeth, and U-shaped grooves. The U-shaped grooves are formed on the circumference of the yoke in the axial direction. The insulators each include an outer circumference wall, hoisting drums, inner guards, and at least three engagement claws. The engagement claws are located spaced apart in the circumferential direction on the outside of the outer circumference wall and fitted in axial-direction ends of the U-shaped grooves, respectively. One of the engagement claws is arranged such that a first circumferential-direction side portion of the engagement claw is in contact with a first side wall of one U-shaped groove. Another is arranged such that a second circumferential-direction side portion of the engagement claw is in contact with a second side wall of another U-shaped groove.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: December 17, 2013
    Assignee: Fujitsu General Limited
    Inventor: Yoshihiro Taema
  • Patent number: 8604660
    Abstract: The invention relates to a stator of an electrical machine, with at least one stator tooth and a coil wound outside of the stator, which coil has been pushed onto the stator tooth substantially radially. It is provided that the coil (4) is held radially on the stator tooth (2) by means of at least one form-fitting connection (13). Furthermore, the invention relates to an electrical machine with such a stator (1).
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: December 10, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Armin Elser
  • Patent number: 8604659
    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: Grant
    Filed: May 5, 2008
    Date of Patent: December 10, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Werner Rieker, Gerhard Oberli
  • Patent number: 8598764
    Abstract: An insulation bobbin unit of a stator includes first and second insulation bobbins. The first insulation bobbin has a first body and a plurality of first extension members. The first body has a first assembly hole. Each extension member has a first wound portion having a first top plate and one first side wall. The first top plate has a smaller thickness than that of the first side wall. The second insulation bobbin has a second body and a plurality of second extension members. Each second extension member includes a second wound portion having a second top plate and one second side wall. The first side wall is aligned with one edge of the second top plate that is not mounted with the second side wall, and the second side wall is aligned with one edge of the first top plate that is not mounted with the first side wall.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 3, 2013
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventor: Alex Horng
  • Patent number: 8593031
    Abstract: A stator includes an iron core 3 in which a plurality of teeth 2 are connected into an integral body, and coil wires 5 each of which is wound in series around each set of a predetermined number of teeth included in the plurality of teeth. Each of the coil wires 5 is routed in a slanting direction between opposed faces of two adjacent teeth 2 in each set of the predetermined number of teeth 2, so that each of the coil wires makes a transition from a wire wound around one of them 2 to a wire wound around the other tooth 2.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: November 26, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Kinugawa, Hiroyuki Ogura, Tatsuhiro Ujiie
  • Patent number: 8587176
    Abstract: A salient pole concentrated winding stator for an electric motor includes an annular stator core and a plurality of coils. The annular stator core includes a plurality of teeth. The plurality of coils are wound around the teeth such as to have different phases on the teeth adjacent in a circumferential direction. Each of the coils includes a first winding end and a second winding end, and at least one of the ends extends across the coil of a different phase. An end portion of the first winding end of one of the coils of the same phase that are adjacent in the circumferential direction is directly joined to an end portion of the second winding end of the other coil to form a joint portion without using an electric-power collection/distribution member. The joint portion is covered with an insulating material.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: November 19, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Ken Kitaori, Nobuhiro Iitaka
  • Publication number: 20130300245
    Abstract: A winding assembly for an electric generator includes a stator core having a relatively cylindrical inner shape. Also included is a rotor core coaxially rotatable within the stator core, wherein the rotor core includes an input shaft. Further included is a rotor winding support structure on the rotor core and comprising a surface disposed at an angle relative to the input shaft and extending radially outward from the input shaft toward the stator core. Yet further included is a rotor winding bundle disposed along, and supported by, the surface of the rotor winding support structure.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 14, 2013
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Keith E. Garr
  • Publication number: 20130293053
    Abstract: A motor including a rotor and a field frame is provided. The field frame comprises a generally annular yoke, a plurality of generally arcuately spaced apart pole pieces extending from the yoke, and a winding extending at least in part about the pole pieces. The yoke includes a plurality of pole piece connection locations. Each of the pole pieces is associated with a corresponding one of the connection locations. The pole pieces and the yoke are connected at the pole piece connection locations in an interlocking manner.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 7, 2013
    Applicant: Advanced Motors & Drives, Inc.
    Inventors: William C. Hittie, JR., Timothy H. Sullivan, William Edwin Drinkwater, Michael J. Rubbo
  • Publication number: 20130241341
    Abstract: A coil bobbin for a brushless alternator includes an integrally formed one piece bobbin body that has a first end, a second end and a central passage that extends from the first end to the second end. A coil support portion of the body is positioned at the first end and has a first cylinder of a first diameter bordered by flanges which extend past the first cylinder. A base portion of the body is positioned at the second end. A bobbin extension portion is positioned between the coil support portion and the base portion. The bobbin extension portion includes a second cylinder of a second diameter which is smaller than the first diameter.
    Type: Application
    Filed: June 19, 2012
    Publication date: September 19, 2013
    Applicant: ALL-TEK MAINTENANCE LTD.
    Inventors: Dale Benson, Ron Heidel
  • Publication number: 20130214634
    Abstract: The stator winding has winding assemblies that are disposed in a stator core so as to be stacked in three or more layers in a radial direction such that slot-housed portions line up in single columns in a clot depth direction inside slots, and radial widths of return portions of the winding assemblies that are mounted so as to be stacked in a radial direction are made sequentially narrower in order of return portions of a winding assembly that is positioned centrally, return portions of a winding assembly that is positioned on an inner circumferential side, and return portions of a winding assembly that is positioned on an outer circumferential side.
    Type: Application
    Filed: December 14, 2010
    Publication date: August 22, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuya Hasegawa, Kazunori Tanaka, Yoshiro Imazawa, Yoshihiro Harada
  • Patent number: 8497618
    Abstract: A stator for a rotary electrical machine, includes a stator core in a cylinder shape and having plural magnetic pole teeth, which are arranged in a circumferential direction of the stator while keeping a distance therebetween and each of which protrudes in a radial direction of the stator core, a coil configured with a conductive wire wound around each of the magnetic pole teeth, an insulating bobbin provided between the coil and the corresponding magnetic pole tooth, and an electric power supply portion arranged axially outwardly of the stator core, electrically connecting the coil with an outside of the stator, and including an outgoing wire, which corresponds to a portion of at least one of a winding start and a winding end of the conductive wire being extended by a predetermined length, and an isolating member having a groove portion for accommodating and guiding the corresponding outgoing wire.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: July 30, 2013
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Isao Kato
  • Publication number: 20130187493
    Abstract: The invention relates to a rotor for a dynamoelectric machine, having the following features: winding elements which are arranged in axially extending grooves of a rotor body; a winding head which is arranged axially adjacent to the rotor body, wherein in the region of the winding head the winding elements exit the grooves in the axial direction, then extend at an angle to the axial direction, and then extend in the axial direction again in the vicinity of the axial ends of said winding elements, and are connected with further winding elements; a winding head carrier which is radially arranged within the winding head; the winding head is connected with the winding head carrier by means of tension bolts which engage at the radially outer ends thereof on support bodies, which in turn lie on the winding elements in the region of the winding head; the tension bolts penetrate the winding head in the radial direction in the axially extending areas or the areas of the bending of the winding elements from the axia
    Type: Application
    Filed: April 27, 2011
    Publication date: July 25, 2013
    Inventors: Holger Henning, Philipp Eilebrecht, Stefan Veser, Thomas Hildinger
  • Patent number: 8492948
    Abstract: An example end cap of a stator segment is provided for use in locating wires in a segmented stator assembly in desired positions. The end cap generally includes a body and an inboard wall. An identifier is defined by the inboard wall of the end cap for use in determining wire sizes to be used with the end cap. Terminal pockets are provided in the body for receiving the wires and making desired electrical connections, and steps located in the terminal pockets help secure the connectors in the terminal pockets. Plateaus, and troughs defined in the plateaus, are located outside the terminal pockets for use in trimming wires received in the terminal pockets as desired. And, retaining structures are located around the end cap to help with locating the wires in the desired positions.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: July 23, 2013
    Assignee: Emerson Electric Co.
    Inventors: William Wang, Paul G. Michaels, J. Scott Rose, Donald R. Shaw, Jason J. Jurkowski
  • Patent number: 8492949
    Abstract: The electric motor of the present invention is capable of improving efficiency of level-winding coil cables and increasing lamination factors of coils. The coil cable, which is wound on first bobbins as first coils, has connection parts. The connection parts are respectively extended from a winding-start point of the first coil wound on each of the first bobbins and a winding-termination point thereof, for parallel winding, through a groove section located on the inner side of a second coil wound on each of second bobbins so as not to interfere with the second coil.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: July 23, 2013
    Assignee: Shinano Kenshi Kabushiki Kaisha
    Inventor: Nobuchika Maruyama
  • Patent number: 8471427
    Abstract: A motor magnetic pole assembly includes a coil body, a base, and two conductive portions. The coil body has a central shaft in a center and connection ends at two ends respectively. The base includes a column and a first plate body, the coil body surrounds the column, and the central shaft is parallel with the column. The two conductive portions are respectively arranged on a surface of the first plate body and are spaced by a distance, and the two connection ends are electrically connected to the two conductive portions respectively. The base may further include a second plate body, such that the first plate body, the column and the second plate body form an H shape. Therefore, the motor magnetic pole assembly may be precisely and quickly placed on a circuit board through an automation process, thereby increasing a processing speed of a production line.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: June 25, 2013
    Assignee: Risun Expanse Corp.
    Inventor: Chiang-Cheng Huang
  • Patent number: 8461734
    Abstract: Winding start sections and winding end sections of winding wires are pulled out from slots of an armature core and are guided by wire guides of an insulator. Thereafter, each corresponding one of the winding start sections and the winding end sections is guided by a corresponding winding holding portion and is directly connected to a corresponding one of power supply terminal elements of a circuit apparatus without using an intermediate terminal.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: June 11, 2013
    Assignee: ASMO Co., Ltd.
    Inventors: Yoshimichi Sahara, Masato Ooishi, Tatsuya Kawai
  • Patent number: 8450898
    Abstract: An insulator for a stator assembly includes at least a first insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils. The at least one insulator includes structure to perform at least one additional function. For example, the structure may include a support member to support and/or locate the PCBA on the stator core, a wire guide to guide cross-over wires that form a connection between coils, and/or positioning structure to precisely position the PCBA with respect to the coils.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: May 28, 2013
    Assignee: ResMed Motor Technologies Inc
    Inventors: David B. Sears, Michael Bruce Moir, Peter Jeffrey Thomas
  • Patent number: 8441164
    Abstract: An outer rotor motor includes a stator and a rotor. The stator includes a stator core having a plurality of teeth, coils and insulators retaining the coils. The insulators are connected to each other in an annular configuration such that the teeth are inserted into the insulators. Each of the insulators includes a body portion and an outer peripheral flange. Each of the insulators further includes an auxiliary tooth portion on at least one of two axial ridge portions. The axial ridge portions include bonding portions between the body portion and the outer peripheral flange. The auxiliary tooth portion includes a rotor-facing surface facing the rotor and a tooth-contacting surface contacting one of the side surfaces in the circumferential direction.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: May 14, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tadanobu Takahashi, Kentaro Fukui
  • Publication number: 20130106211
    Abstract: Electrical machine rotors (R) suited for synchronous motors of electric vehicle drives. A rotor (R) includes a rotor shaft (8), a sheet stack (3), windings, and a restraining system (2) with support elements. The support elements of the restraining system include support rings (7) to protect winding heads (4) projecting from the sheet stack (3) in the axial direction against radial stresses. The elements of the restraining system (2) protecting the winding heads (4) from stresses also include axially inner end caps (6) configured as supports for the finished winding heads (4) in the operating state, and as guides and supports during the winding of the pole windings of the rotor (R) about the axial edge of the sheet stack (3). The axially outer support rings (7) cooperate with the axially inner end caps (6) so that the support rings (7) may absorb centrifugal forces acting on winding heads (4) end caps (6).
    Type: Application
    Filed: July 14, 2011
    Publication date: May 2, 2013
    Applicant: BRUSA ELEKTRONIK AG
    Inventor: Andreas Holzner
  • Patent number: 8415851
    Abstract: A terminal element, a motor winding structure and a manufacturing method are disclosed. The terminal element includes a fixing portion, a positioning portion and a buffering portion. The fixing portion is disposed at one end of the terminal element and has a serrate fixing pattern. The fixing portion is connected with a connecting position of the motor winding bobbin. The positioning portion is disposed adjacent to the fixing portion and urged against the motor winding structure for positioning the fixing portion while it is connected with the connecting position. The buffering portion has a first bending and a second bending, and the first bending is connected to positioning portion. The buffering portion absorbs the force applied to the terminal element.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: April 9, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Shi Huang, Chin-Chu Hsu, Chun-Hua Yang, Chia-Ying Hsu
  • Patent number: 8400041
    Abstract: Segmented stator assemblies having a plurality of stator segments and a plurality of end caps are disclosed. According to one example embodiment, a segmented stator assembly includes a plurality of stator segments and a plurality of end caps. Each stator segment has a yoke portion and a tooth portion extending from the yoke portion. Each end cap is positioned over one of the stator segments. Each end cap includes a body portion positioned at least partially over the yoke portion of its associated stator segment. At least one of the body portions includes at least a first post that cooperates with a post of an adjacent end cap to define a first wire management tie-down. The stator assembly further includes a stator wire coupled to the first wire management tie-down. Stator assemblies and end caps having other wire management and routing features are also disclosed.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: March 19, 2013
    Assignee: Nidec Motor Corporation
    Inventors: Chetan O. Modi, Mark Carrier, Jason Jurkowski
  • Patent number: 8395285
    Abstract: An electromagnetic vibration device includes a vibrating plate, a suspending frame, upper and lower basin frames, a voice coil, and a magnetic loop system. Multiple voice coil fixing slots are uniformly distributed on the circumference of the vibrating plate corresponding to the inserting pieces of the voice coil, and the inserting pieces are passed through the voice coil fixing slots of the vibrating plate and fixed to the vibrating plate. One end of the lead of the voice coil is embedded in a groove on back of the vibrating plate and connected to the terminal of the lower basin frame.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: March 12, 2013
    Inventor: Hsin Min Huang
  • Patent number: 8390155
    Abstract: A coil former for a linear motor stator for an automatic door having a coil arrangement, which, upon appropriate activation, is able to produce an interaction with a linear motor rotor, which causes thrust forces, with a body for the reception of a winding wire to form a coil, and at least one flange terminating the body at the front side, wherein the at least one flange of the coil former has at least one wire reception, which is able to receive a predetermined length of the winding wire and is able to, at least partially, release it again.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: March 5, 2013
    Assignee: Dorma GmbH + Co. KG
    Inventors: Sven Busch, Thomas Schüler
  • Patent number: 8378540
    Abstract: A motor includes a stator, a bearing, a cover, a shaft, a rotor holder and a rotor magnet. The cover member includes an outer cylinder portion arranged to support the stator on the inner surface thereof, an inner cylinder portion arranged to support the bearing on the inner surface thereof and a bottom portion arranged to interconnect the lower end of the outer cylinder portion and the lower end of the inner cylinder portion. The stator includes a stator core, an insulator arranged to cover the stator core and coils. The cover member is preferably formed by press-forming a single metal plate member. The insulator includes a protrusion portion positioned radially outwards of the coils to protrude upwards higher than the upper end of the outer cylinder portion. The upper ends of the coils are positioned higher than the upper end of the outer cylinder portion.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: February 19, 2013
    Assignee: Nidec Corporation
    Inventors: Keizo Furukawa, Nobuyuki Iwashita, Masato Yamamoto
  • Publication number: 20130038166
    Abstract: A rotating electric machine includes a rotor, having a rotor laminate stack extending in the direction of a machine axis and having a rotor winding, the rotor winding forming a winding head at each of the ends of the rotor laminate stack, said winding head being fastened to a winding head rim, which is arranged concentrically within the winding head and adjoins the rotor laminate stack in the axial direction, in order to intercept centrifugal forces by means of bolts passing radially through the winding head, and a fastening designed to safely absorb axial expansions of the winding head. Simple and secure fastening is achieved by virtue of the bolts being fastened to the winding head rim in each case on a T-shaped hammer profile, which extends in the axial direction and is mounted in axially movable fashion in an associated axial T-shaped slot in the winding head rim.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicant: ALSTOM HYDRO FRANCE
    Inventors: Serdar Cifyildiz, Alexander Schwery, Ricardo Naoki Okai, Hanspeter Walser, Matthias Schmid
  • Publication number: 20130038167
    Abstract: A rotating electric machine, e.g. hydrogenerator, includes a rotor, including a rotor laminate stack extending in a machine axis direction and having a rotor winding which forms a winding head at each of the ends of the rotor laminate stack. The winding head is fastened to a winding head rim, which is arranged concentrically within the winding head and adjoins the rotor laminate stack in the axial direction, to intercept centrifugal forces by bolts passing radially through the winding head, and a fastening designed to safely absorb axial expansions of the winding head. Simple and secure fastening is achieved by the bolts being fastened to the winding head rim in each case on a T-shaped hammer profile, which extends axially and is mounted, axially movable, in a T-shaped groove in the winding head rim, additional couplers are provided that transmit axial expansions of the winding head onto the hammer profile.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicant: ALSTOM HYDRO FRANCE
    Inventors: Serdar Cifyildiz, Alexander Schwery, Ricardo Naoki Okai, Hanspeter Walser, Matthias Schmid
  • Patent number: 8373320
    Abstract: A stator for a motor of a compressor includes a stator core, an insulator fitted on an axial end face of the stator core, and coils wound around the stator core and the insulator. The insulator has an annular portion, a plurality of circumferentially arranged tooth portions projecting radially inwardly from an inner peripheral surface of the annular portion, and a cylindrical-shaped wall section erected on an axial end face of the annular portion. The coils include crossover wires routed on an outer peripheral surface of the wall section of the insulator so as to extend obliquely relative to a plane orthogonal to an axis of the stator, as viewed in a direction orthogonal to the axis.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: February 12, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Satoshi Tsukamoto, Hiroki Shirasaka
  • Patent number: 8368283
    Abstract: Provided are a stator for a brushless direct-current (BLDC) motor, a BLDC motor having a double-rotor/single-stator structure, and a vehicle cooler using the same, which uses a printed circuit board for an assembly that automatically sets an assembly position of stator core assemblies, to thereby secure waterproof, light-weight, and high power features. The stator includes a holder, a boss which has built-in bearings in order to support a rotational axis, and which enables the rotational axis to be rotated, a number of stator core assemblies which respectively enclose bobbins having inner and outer flanges at the inner and outer sides of a number of division type stator cores and in which coils are wound around the bobbins, and a printed circuit board for an assembly in which each stator core assembly is automatically position-set and then assembled and both end portions of the coil are mutually connected by each phase of U, V and W.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: February 5, 2013
    Assignee: Amotech Co., Ltd.
    Inventors: Byoung Kyu Kim, Kyu Hyuk Jeong, Jong Hoon Lee
  • Patent number: 8358045
    Abstract: Presented is a winding arrangement for an electric machine that includes a laminated core that includes a yoke that includes a plurality of teeth each having flanks that form first wedge surfaces and a winding support area that has a trapezoidal cross-section. The arrangement further includes a coil winding, and a winding body configured to arrange the coil winding on one of the plurality of teeth. The coil winding has an inner area arranged opposite the first wedge surfaces and represents second wedge surfaces. The arrangement further includes a stop means disposed on the winding body and/or one of the plurality of teeth. The stop means is configured to limit movement of the winding body in a direction toward the yoke. The arrangement further includes a centering means configured to center the winding body on one of the plurality of teeth.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: January 22, 2013
    Assignee: ZF Friedrichshafen AG
    Inventors: Marcus van Heyden, Alexander Gehring, Ralf Rönnebeck, Florian Leberfinger, Frank Kewes
  • Patent number: 8350441
    Abstract: A motor includes a shaft, a rotor, a stator, and a housing. The stator preferably includes a core including a plurality of teeth, a plurality of coils, and electrically insulating tubes. The core is defined by a combination of a plurality of unit cores each of which has a separate one of the teeth. The plurality of coils include two or more continuous coils defined by a single line of a conductor wire. Each of the electrically insulating tubes is arranged to cover at least a portion of the conductor wire which passes between the continuous coils.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: January 8, 2013
    Assignee: Nidec Corporation
    Inventors: Keisuke Fukunaga, Motofumi Otsuji, Masato Aono
  • Patent number: 8350427
    Abstract: A stator of a rotary electrical machine includes a core unit configured by a plurality of core assemblies, around which wires are respectively wound to form the coils, including low voltage side terminals, which connect first ends of the coils, and a bus ring attached to the core unit so as to connect second ends of the coils to electricity supply wires by high voltage side terminals. Each terminal accommodating portion is individually formed relative to each of the core assemblies at an external side of the coils. Each of the terminal accommodating portions is filled with an insulating resin material in a state where at least one of a connecting portion of the first end and each of the low voltage side terminals and a connecting portion of the second end and each of the high voltage side terminals is accommodated within each of the terminal accommodating portions.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: January 8, 2013
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Toshiya Sugiyama, Jun Abiko, Yasutoshi Yamada, Hiroyuki Nagata
  • Patent number: 8350436
    Abstract: An outer-rotor salient-pole concentrated winding motor includes a salient-pole concentrated winding stator and a rotor. The salient-pole concentrated winding stator includes stator core, coils and insulators. The stator core has a plurality of teeth that extend outward in a radial direction of the stator. Each of the insulators includes a projecting engaging portion and a recessed engaging portion. The projecting engaging portion projects outward in the circumferential direction. The recessed engaging portion is formed so that an outer separation wall of the insulator is recessed inward in the circumferential direction. The projecting engaging portion and the recessed engaging portion of adjacent insulators engage with each other when the teeth are inserted into the insulators.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: January 8, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kenta Sakane, Ken Kitaori
  • Publication number: 20130002083
    Abstract: A rotor (or a stator) for a superconducting electrical machine includes a mounting that is maintained at substantially ambient temperature during operation of the electrical machine and a field coil support structure. A plurality of superconducting field coils are maintained at cryogenic temperatures during operation of the electrical machine and are supported by the field coil support structure. A plurality of coupling elements are used to fix the field coil support structure to the mounting. The coupling elements can be linear struts and carry substantially of the torque that is experienced during operation of the electrical machine.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 3, 2013
    Applicant: GE Energy Power Conversion Technology Ltd.
    Inventors: Joseph EUGENE, Graham Derek LeFLEM
  • Patent number: 8339008
    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: Grant
    Filed: April 8, 2008
    Date of Patent: December 25, 2012
    Assignee: Amotech Co., Ltd.
    Inventors: Byoung Kyu Kim, Byoung Soo Kim
  • Patent number: 8339011
    Abstract: A rotor assembly for an electromechanical device includes a molded wire support. The wire support has a body including a first side spaced from a second side and a hole extending through the sides and configured to receive a shaft. The body includes a wall about the hole extending to the first side. At least one end turn support extends outwardly from the wall and is configured to support wires. A molded pocket extends into the wall from the second side without penetrating through to the first side.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: December 25, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Henry R. Vanderzyden
  • Publication number: 20120313492
    Abstract: A stator that includes stator windings wound around teeth. A rotor includes: a rotor core; rotor windings wound around main salient poles of the rotor; and a diode serving as a magnetic characteristic adjustment portion that causes magnetic characteristics produced on the main salient poles by electromotive forces induced in the rotor windings to differ in the circumferential direction of the rotor. The rotor has auxiliary salient poles that are each protruded from a side surface of each main salient pole in the circumferential direction. In each of rotor slots formed between the main salient poles adjacent to each other in the circumferential direction, the auxiliary salient poles adjacent to each other in the circumferential direction are connected to each other within the rotor slot. In each rotor slot, at least a portion of the rotor windings is disposed radially inside the auxiliary salient poles.
    Type: Application
    Filed: June 12, 2012
    Publication date: December 13, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Eiji YAMADA, Ryoji MIZUTANI, Shintaro CHINEN, Kenji HIRAMOTO, Hideo NAKAI
  • Patent number: 8323005
    Abstract: A motor-driven compressor includes a compression mechanism, an electric motor, a compressor housing, a conductive member, a terminal base, an insulating member, a connection terminal, a wire assembly, a terminal housing, first and second holes formed through the terminal housing and first and second seal members. The conductive member extends from the inside to the outside of the compressor housing and connected electrically to the connection terminal at a terminal connection. The wire assembly has a core wire connecting electrically between the connecting terminal and the electric motor, and an insulator covering the core wire. The terminal housing disposed in the compressor housing covers the terminal connection. The wire assembly has an insulating tube covering the insulator, wherein both ends of the insulating tube are opened for communicating with the inside and the outside of the terminal housing through a clearance formed between the insulating tube and the insulator.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: December 4, 2012
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Tetsuya Yamada, Shingo Enami, Akio Fujii, Junya Yano, Ken Suitou
  • Patent number: 8314528
    Abstract: An armature includes an insulator component with a wiring member arranged in a wiring fixing groove positioned outside of an outer wall portion of the insulator component. When a lead wire is wound around the insulator component, a winding start portion and a winding end portion of the lead wire are arranged to intersect with each other in a radial direction to define an intersection portion. The winding start portion is pressed by the winding end portion toward the outer wall portion. A lead wire escape portion spaced from a radially outer end portion of a coil is defined in the outer wall portion. This contributes to preventing the outer wall portion from being deformed by being pressed by the lead wire at the intersection portion, thereby preventing difficulty in arranging the wiring member on the insulator component.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: November 20, 2012
    Assignee: Nidec Corporation
    Inventor: Toshinobu Shinohara
  • Patent number: 8304955
    Abstract: A PM stepping motor includes: a stator assembly composed of two stator units which are axially coupled to each other with a molding resin material, and each of which includes: inner and outer yokes each having a plurality of pole teeth; a bobbin including inner and outer flanges; and a coil wound around the bobbin, thus providing two such inner yokes, outer yokes, bobbins and coils in total; a rotor assembly which includes a shaft and a magnet, and which is rotatably disposed in the hollow of the stator assembly; and two bearings to rotatably support the shaft of the rotor assembly, wherein the two bobbins are formed of the molding resin material to be consolidated with the two inner yokes, and wherein a plurality of protrusions are formed of the molding resin material to extend integrally from the outer flange of each of the two bobbins.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: November 6, 2012
    Assignee: Minebea Co., Ltd.
    Inventors: Yuzuru Suzuki, Takayuki Yamawaki, Hiroyuki Furusaki, Masaki Kagawa
  • Patent number: 8299675
    Abstract: A stator for a brushless DC motor includes a cylindrical member and a positioning member. The cylindrical member is formed by a plurality of metal wires. Each metal wire includes two ends each forming a terminal. The cylindrical member includes first and second ends separated along a longitudinal axis. The positioning member includes an annular body received in the first end of the cylindrical member and separated from the second end of the cylindrical member along the longitudinal axis. The positioning member maintains a shape of the cylindrical member. The stator can be mounted in a space defined by a housing and a base engaged with the housing, forming a brushless DC motor. A bearing and a circuit board are mounted in the space. The bearing rotatably supports a shaft. A permanent magnet is mounted to the shaft and aligned with the stator.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: October 30, 2012
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Tso-Kuo Yin
  • Publication number: 20120235532
    Abstract: An apparatus (structure) is provided to support a superconductor winding (61) of an electromotive machine. An elongated loop (74) provides radial support to the winding. A base assembly (84) may include a base module (89) arranged to anchor the loop at a proximate end (76) of the elongated loop by way of a tubular coupling (86). The tubular coupling may further provide a mechanical connection relative to an axially-adjacent base module. A bracket assembly (100) may define an interior recess to receive a portion of the winding and to support the elongated loop at a distal end (78) of the elongated loop, such as by way of a support (80). A lateral-extending loop (106) may have a first end connected to the bracket assembly (100) and a second end connected to the base module (89) to transfer to the rotor core lateral loads, which may be experienced by the winding.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 20, 2012
    Inventors: RAUL R. RICO, Robert L. Murphy
  • Patent number: 8269393
    Abstract: An end turn support for a generator includes a wire support. The wire support extends along an axis in a radial direction from an axis of rotation. The wire support defines an arcuate wire receipt surface.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: September 18, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Dhaval Patel, Alan D. Hanson, Glenn W. Hufstedler