Coils Patents (Class 310/208)
  • Patent number: 11502583
    Abstract: A motor includes a stator and a rotor having an axis of rotation and a magnet. The stator includes a PCB having PCB panels. Each PCB panel is assigned to one electrical phase. Each PCB panel has a pair of PCB layers. Each PCB layer includes coils, and each coil in each PCB layer of a PCB panel is circumferentially aligned with a corresponding coil in another PCB layer. One coil in one PCB layer is coupled to a corresponding coil in another PCB layer with a via. A number of turns in each coil is a multiple of a number of electrical phases configured for the PCB stator. In addition, the vias that connect two coils in a pair of PCB layers that belong to a same electrical phase do not intersect coils in PCB layers that belong to other electrical phases of the PCB stator.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: November 15, 2022
    Assignee: Infinitum Electric, Inc.
    Inventors: Rich Lee, Paulo Guedes-Pinto
  • Patent number: 11489374
    Abstract: A rotary electric machine armature that includes a cylindrical armature core and a coil wound around the armature core, wherein: the coil is formed by joining a plurality of segment conductors to each other; the segment conductors have respective conductor side portions that extend along the axial direction; the conductor side portions are provided with respective joint portions; the joint portions have respective facing surfaces; the joint portions of a pair of the segment conductors are joined to each other with the facing surfaces of the joint portions facing each other; and a facing surface of the facing surfaces is formed so as to have a portion that faces a radial direction and so as not to have portions that overlap each other as viewed in the radial direction over the entire facing surface.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: November 1, 2022
    Assignee: AISIN CORPORATION
    Inventors: Kiyotaka Koga, Tomotsugu Sugihara
  • Patent number: 11398760
    Abstract: A stator member includes a stator core, a coil, and an insulator. The stator core has a shape extending in an axial direction, and has a side surface parallel to the axial direction. The coil has a linear shape and is wound around the side surface of the stator core. The coil has a coil end portion 231 at one end of the coil having the linear shape, and a coil end portion 232 at another end of the coil having the linear shape. The insulator has insulation properties, and is provided with an outer member. The outer member has a first recess and a second recess extending in a thickness direction. The coil end portion 231 is inserted into the first recess. The coil end portion 232 is inserted into the second recess.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: July 26, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Mitsutoshi Natsumeda, Hisato Amano, Takashi Sakurada, Eiji Sakaguchi
  • Patent number: 11394256
    Abstract: A torque delivering apparatus, including: polygonal cross-section stator body having a plurality of exterior side faces of even number extending between opposite axial end faces, the stator including cylindrical bore extending between the opposite axial ends and centred on central axis of the stator body; a rotor assembly having cylindrical cross-section sized for rotation within the cylindrical bore about the central axis with at least one permanent magnet and shaft coupled to the magnet for rotation; and a plurality of solenoid coils, each coil having plurality of windings and routed to have sections extending parallel along opposite ones of the plurality of exterior side faces; wherein each of the plurality of coils is configured to selectively receive current and generate magnetic field in the stator that is applied to the rotor magnet, the rotor being subject to magnetic torque within the cylindrical bore for rotating and aligning the magnetic field of the permanent magnet with the generated magnetic fie
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: July 19, 2022
    Assignee: Magswitch Technology Inc.
    Inventors: David H. Morton, Michael H. Reed, Thomas R. Whitt, Michael C. Blanchard
  • Patent number: 11368079
    Abstract: A plural magnet arrangement of a matrix of rows and columns having an altered magnet field alignment of a plurality of the magnets in a matrix comprising rows and columns of magnets in such a manner that there are at times a co-existing combination of changing attractive and repelling magnetic field regions all throughout the coil winding volume, reducing the counter electromotive force (voltage) during electrically connecting a load to the coil winding terminals and extends the time duration of the output voltage waveform and this is accomplished wherein the rotational torque required to rotate the centre magnet through the coil of which it is centred within is reduced.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: June 21, 2022
    Inventor: David Deak, Sr.
  • Patent number: 11368061
    Abstract: An object of the present invention is to improve the fixing force of a stator core at low cost. The rotating electric machine includes a stator 300 in which a plurality of stator cores 400 are annularly arranged, a rotor to be arranged on the inner circumferential side of the stator 300, and a housing 500 having a cylindrical shape for fixing each of the plurality of stator cores 400. The stator core 400 has outer circumferential surfaces 410 and 420 arranged to face the inner circumferential surface 510 of the housing 500, and the outer circumferential surfaces 410 and 420 of the stator core 400 are slanted with respect to the inner circumferential surface 510 of the housing 500.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 21, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Mohdbasir Zulaika, Shinji Yamazaki, Shinjirou Watari
  • Patent number: 11356005
    Abstract: The present invention discloses a stator, a rotor and a multi-working-harmonic permanent magnet motor using the above rotor and the stator, wherein the N poles and the S poles are alternately distributed in a circumference direction of the rotor core or the stator core; any N pole comprises at least one N-pole permanent magnet; any S pole comprises at least one S-pole permanent magnet; and at least two adjacent N pole and S pole has different widths. According to the invention, through the arrangement of magnetic poles with different widths on a rotor or a stator, it is possible to generate magnetic fields containing a plurality of harmonic magnetic fields with high amplitudes so that the harmonic magnetic fields can interact with the magnetic fields generated by the armature windings of the permanent motor to realize the superposition of multi-part torques, thereby further enhancing the outputted torque of the motor.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: June 7, 2022
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Dawei Li, Kangfu Xie, Ronghai Qu
  • Patent number: 11322994
    Abstract: A radial flux electric machine includes a rotor configured to rotate about an axis of rotation and a stator. At least one of the rotor or the stator may include a plurality of teeth annularly arranged about the axis of rotation. The electric machine may also include a plurality of electromagnetic coils. Each coil of the plurality of electromagnetic coils may have a non-uniform trapezoidal cavity therethrough. Each cavity may be configured to contain therein one tooth of the plurality of teeth. Each tooth of the plurality of teeth may be formed of multiple pieces that, when assembled together correspond to a shape of the non-uniform trapezoidal cavity.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: May 3, 2022
    Assignee: EVR MOTORS LTD
    Inventors: Victor Kislev, Oleg Gaspar, Ruslan Shabinski, Eliyahu Rozinsky
  • Patent number: 11316414
    Abstract: A method of manufacturing a coil includes forming a wound body by winding a coil wire in multiple layers, and forming a coil by pressing the wound body using a die surrounding the wound body and compressively deforming the wound body. The wound body has a contour of a rectangular or substantially rectangular shape in cross section, and includes coil wire portions located in the cross section of the coil wire, the coil wire portions being aligned along each side of the rectangular or substantially rectangular shape. The coil has a contour of a fan shape or approximate fan shape in the cross section, where the coil wire portions are aligned in a direction along an arc and a radial direction of the fan shape or approximate fan shape.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: April 26, 2022
    Assignee: NIDEC CORPORATION
    Inventor: Shigeharu Sumi
  • Patent number: 11303176
    Abstract: A coil winding (20) that consists of a number of wires (22) braided with one another and bent multiple times in opposite directions such that mutually parallel legs (28, 30) of the wires (22) which are intended to fill the slots (16) are connected by winding overhangs (32, 34) which project from the end face of the stators (10) or rotors. The winding overhangs (32, 34) each have two oblique winding overhang sections (36, 38, 40, 42) having a winding overhang tip (44, 46) in between. The wires (22) are arranged one behind the other in a longitudinal direction (L) of the coil winding (20). The winding overhangs (32, 34), which are distributed in the longitudinal direction (L) over the entire length of the coil winding, of at least one wire (22) protrude transversely to the longitudinal direction (L) beyond the winding overhang (28, 30).
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 12, 2022
    Assignee: Schaeffler ELMOTEC STATOMAT GmbH
    Inventors: Sadik Sadiku, Keith Witwer
  • Patent number: 11296584
    Abstract: A method of manufacturing a rotary electric machine armature that includes a cylindrical armature core in which a plurality of slots that extend in an axial direction are disposed in a circumferential direction and a coil wound around the armature core, the slots having respective radial openings that open in a radial direction, and the coil being formed by joining a plurality of segment conductors to each other.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: April 5, 2022
    Assignee: AISIN CORPORATION
    Inventors: Kiyotaka Koga, Tomotsugu Sugihara
  • Patent number: 11283319
    Abstract: An axial field rotary energy device with a PCB stator having interleaved PCBs is disclosed. The device can include rotors that have magnets and an axis of rotation. A stator assembly can be located axially between the rotors to operate electrical phases. The stator assembly can include PCB panels. Each PCB panel can have layers, and each PCB panel can be designated to one of the electrical phases. Each electrical phase of the stator assembly can be provided by a plurality of the PCB panels. In addition, the PCB panels for each electrical phase can be axially spaced apart from and intermingled with each other.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: March 22, 2022
    Assignee: Infinitum Electric, Inc.
    Inventors: Jerad Park, Rich Lee, Paulo Guedes-Pinto, Mark Preston
  • Patent number: 11211855
    Abstract: The present invention provides a direct current motor, comprising: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, including a plurality of armature windings in a predetermined connection, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole; each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, the field winding part includes k field winding units, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around the m pairs of main poles, and m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: December 28, 2021
    Assignee: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGY
    Inventors: Aijuan Jin, Shaolong Li
  • Patent number: 11201516
    Abstract: An axial field rotary energy device can include a housing having an axis with an axial direction. A stator assembly can include stator panels that are discrete panels from each other. The stators panels can be mechanically and stationarily coupled to the housing. Each stator panel can include a printed circuit board (PCB) having coils that are electrically conductive, and each stator panel can operate with a single electrical phase. In addition, rotors can be rotatably mounted within the housing on opposite axial ends of the stator assembly. The rotors can be mechanically coupled together with a rotor spacer. Each rotor can include magnets. In addition, in one version, no rotor is disposed between axially adjacent ones of the stator panels.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 14, 2021
    Assignee: Infinitum Electric, Inc.
    Inventors: Bernhard L. Schuler, Rich Lee, Jorgen Rasmussen
  • Patent number: 11183897
    Abstract: A stator of a rotating electric apparatus is disclosed. The stator includes a stator core that defines a plurality of slots that are located a circumference of the stator core. The stator further includes a stator coil that includes a plurality of conductors electrically connected, located in the plurality of slots, and configured to conduct electricity. The stator coil includes a plurality of phase coils that are each connected to a phase of a power source. A first conductor of the stator coil is connected to a power line and is located in an nth layer that is an outermost layer of one of the plurality of slots. An Nth conductor of the stator coil is connected to a neutral line and is located in an n?1th layer that is located nearer to a center of the stator than the nth layer.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: November 23, 2021
    Assignee: LG Magna e-Powertrain Co., Ltd.
    Inventors: Hyounggun Lee, Minjung Kim
  • Patent number: 11165298
    Abstract: An electric machine having a stator core with axially extending slots and a plurality of windings. Each stator winding defines a continuous electrical conductor having a first wire and a second wire connected in series. The first wire defines a plurality of first axially extending segments disposed in the slots and a plurality of first end turn segments. The second wire defines a plurality of second axially extending segments disposed in the slots and a plurality second end turn segments. The first wire is a solitary wire defining a first cross sectional area and the second wire comprises a plurality of individual strands wherein each strand defines a second cross sectional area less than the first cross sectional area. In slots containing both first and second axially extending segments, the second axially extending segments are disposed closer to the rotor than the first axially extending segments.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: November 2, 2021
    Assignee: BorgWarner Inc.
    Inventors: Tausif Husain, Josh Lahrman
  • Patent number: 11165303
    Abstract: Various embodiments include a guide ring for connection to a housing of an electric machine comprising: a main body having a ring element; a plurality of busbars; and a plurality of pressure elements. The busbars are overmolded by the main body. Each of the plurality of pressure elements projects from an outer circumferential surface of the main body and to frictionally connect the guide ring to an inner receiving surface of the housing.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: November 2, 2021
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Swen Wiethoff, Zoran Dmitrasinovic
  • Patent number: 11114914
    Abstract: A motor includes a stator core, a first coil, and a second coil provided adjacent to the first coil in the radial direction. The first coil and the second coil do not coincide in position with each other as seen in the axial direction of the stator core. A first coil end portion of the first coil and a second coil end portion of the second coil respectively include a first facing portion and a second facing portion facing each other in the radial direction. The motor further includes an out-slot insulator interposed at least between the first facing portion and the second facing portion and provided so that at least a part of the first coil end portion and the second coil end portion is exposed.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: September 7, 2021
    Assignee: DMG MORI CO., LTD.
    Inventor: Kazuhiro Kumagai
  • Patent number: 11101722
    Abstract: A method of manufacturing a segment for a stator of an electrical generator includes manufacturing a segment body circumferentially extending between at least a first end slot and a second end slot, providing the coil concentrated winding in the slots of the segment body, providing a first pressure plate a second pressure plate for respectively holding the coil in the first end slot and the second end slot, applying vacuum pressure impregnation to the coil concentrated winding in the slots of the segment body, and removing the first pressure plate and the second pressure plate for obtaining the segment.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 24, 2021
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventor: Subhra Samanta
  • Patent number: 11095197
    Abstract: A modular stator includes a first stator module and a second stator module. The first stator module includes a plurality of first coil end regions and a plurality of first junctions. The second stator module includes a plurality of second coil end regions and a plurality of second junctions. The first stator module and the second stator module are joined at the plurality of first junctions and the plurality of second junctions.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: August 17, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John S. Agapiou, John D. Campbell, Frederick W. Rhoads, Hongliang Wang, James G. Schroth, Thomas A. Perry
  • Patent number: 11095177
    Abstract: A coil wound around a core in which a plurality of slots that extend in an axial direction are arranged in a circumferential direction, the coil including a plurality of slot-housed portions respectively disposed in the plurality of slots; and a plurality of crossover portions that each connect between a first slot-housed portion and a second slot-housed portion, which are a pair of slot-housed portions of the plurality of slot-housed portions disposed in slots of the plurality of slots that are different from each other, on an outer side in the axial direction with respect to the core.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: August 17, 2021
    Assignee: AISIN AW CO., LTD.
    Inventor: Kiyotaka Koga
  • Patent number: 11081870
    Abstract: A bus bar unit includes a bus bar holder and bus bars. The bus bar holder is provided on an upper side of a stator disposed in a ring around a central axis extending in a vertical direction. The bus bars are supported by the bus bar holder and connected to coil wires extending from the stator. The bus bars are plate-shaped conductors and are supported by the bus bar holder with a plate surface facing in the vertical direction. The bus bars include coil connecting portions connected to the coil wires, and a bus bar body portion connecting the coil connecting portions through a radially inner side of the plurality of the coil connecting portions, respectively, and at least one bus bar crosses over an upper side or a lower side of at least one of the other bus bars.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 3, 2021
    Assignee: NIDEC CORPORATION
    Inventors: Kosuke Ogawa, Takashi Seguchi, Shunsuke Murakami, Takao Atarashi
  • Patent number: 10951100
    Abstract: A winding method for an electric motor stator includes at a start of winding of the coil, a first step for forming a two-turn winding portion by winding a magnet wire upwardly around a pin for two turns; a second step, subsequent to the first step, for winding the magnet wire to cross the two-turn winding portion from an outside from an upper side to a lower side on a side surface of the pin opposite from the power supply terminal; and a third step, subsequent to the second step, for winding the magnet wire for a half turn above the two-turn winding portion and then guiding the magnet wire to the power supply terminal to be hooked on the bent back section.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: March 16, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shigeru Matsuda, Takeharu Kato
  • Patent number: 10938283
    Abstract: An assembling device (10) includes a first arranging section (11), a second arranging section (12), eighteen support arms (13) for supporting coil segments (4), a feeding part (14), and a controller (16). When the controller (16) drives a motor (35) to rotate the feeding part (14) in a counterclockwise direction D1, a pressing roller (14c) rolls in the direction D1 along a first guide portion (11a), and presses a base part (21) of the eighteenth support arm (13) in the direction D1. Thus, the first to eighteenth support arms (13) are rotated in the direction D1 to insert the base parts (21) of the first to eighteenth support arms (13) sequentially in a second guide portion (12a) of the second arranging section (12), so that the first to eighteenth support arms (13) are rotated in a clockwise direction D2 to assemble the coil segments (4) while overlapping with one another.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 2, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Yoshida, Shuhei Okuda, Takumi Fukaura, Hiroshi Isozaki
  • Patent number: 10923979
    Abstract: The present invention provides an insulator which comprises: an inner guide; an outer guide; and a body connecting the inner guide and the outer guide, and having a coil wound thereon, wherein a rotatable wing is connected to an outer surface of the outer guide.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: February 16, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Hae Seok Lee
  • Patent number: 10886807
    Abstract: A brushless motor includes a stator, a control device, and a rotor. The stator includes a stator core and windings. The stator core includes teeth arranged next to one another in a circumferential direction and slots formed between the teeth. The windings are inserted into the slots and wound around the stator core as three-phase windings of a plurality of systems. The control device generates a three-phase driving current. The rotor is rotated and driven when the three-phase windings are supplied with the three-phase driving current. The windings are operable independently in each system. At least two windings of different systems and the same phase are arranged mixed in the same slot. The driving current of the same phase is supplied to the two windings of different systems and the same phase arranged in the same slot.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 5, 2021
    Assignee: DENSO CORPORATION
    Inventor: Rintaro Horizumi
  • Patent number: 10886804
    Abstract: A rotating electrical machine that includes a rotor core; a stator core disposed so as to face the rotor core in a radial direction and including a plurality of teeth and a plurality of slots each located between adjacent ones of the teeth; and a concentric coil formed by concentrically winding a wire, and including a slot accommodated portion placed in the slot of the stator core and a coil end portion projecting in an axial direction from the stator core, wherein of the slot accommodated portion of the concentric coil, an axial end of the slot accommodated portion located on a side facing the rotor core is located closer to an outside in the radial direction than an axial middle part of the slot accommodated portion located on the side facing the rotor core.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 5, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Kiyotaka Koga, Shingo Hashimoto, Shingo Sato
  • Patent number: 10790728
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: September 29, 2020
    Assignee: Enure, Inc.
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10727712
    Abstract: An axial field rotary energy device can include a housing having an axis with an axial direction. A stator assembly can include a plurality of stator panels that are discrete panels from each other. The stators panels can be mechanically and stationarily coupled to the housing. Each stator panel can include a printed circuit board (PCB) having coils that are electrically conductive, each stator panel consists of a single electrical phase. In addition, rotors can be rotatably mounted within the housing on opposite axial ends of the stator assembly. The rotors can be mechanically coupled together with a rotor spacer. Each rotor can include magnets. In addition, in one version, no rotor is disposed between axially adjacent ones of the stator panels.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 28, 2020
    Assignee: Infinitum Electric, Inc.
    Inventors: Bernhard L. Schuler, Rich Lee, Jorgen Rasmussen
  • Patent number: 10720818
    Abstract: A synchronous reluctance type rotary electric machine of an embodiment includes a shaft, a rotor core, rotor core pressers, a plurality of conductor bars, and short-circuit rings. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft and includes multi-layered hollow parts having a convex shape toward a radially inward side formed for each pole in cross section. The rotor core pressers hold the rotor core by pressing the rotor core from both sides in a rotation axis direction. The plurality of conductor bars are disposed in the hollow parts to extend along the rotation axis and have both ends protruding through the rotor core pressers. The short-circuit rings are provided at both ends of each of the plurality of conductor bars and connect the plurality of conductor bars together. Thus, the conductor bars are fixed to the rotor core pressers.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: July 21, 2020
    Assignees: Toshiba Industrial Products and Systems Corporation, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Masaaki Matsumoto, Takashi Araki, Makoto Matsushita, Katsutoku Takeuchi, Toshio Hasebe
  • Patent number: 10686350
    Abstract: A manufacturing method of a rotary electric machine is disclosed. The rotary electric machine includes a stator provided with a stator iron core, which is cylindrical and in which slots are formed in a circumferential direction on an inner circumferential surface, and coils of phases that are each inserted into the slots, and a movable element provided with a movable element iron core supported in a rotatable manner relative to the stator and at least a pair of movable element magnetic poles provided in the movable element iron core. The method includes: a split flux coil formation step; a coil setting step; a stator iron core setting step; and a split flux coil collective insertion step.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: June 16, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Toshiya Sugiyama, Yusaku Kawanishi, Akinori Hoshino, Hiroaki Yabui, Koji Sato
  • Patent number: 10637314
    Abstract: The invention relates to a bar winding arrangement of a stator or a rotor of an electric machine, including a number of bar segments, which are housed in a plurality of slots of the stator or the rotor and are electrically connected to one another in such a way that they form a continuous winding of the stator or the rotor, wherein each of the slots is divided by the bar segments into a first group of bar segments and at least one second group of bar segments, wherein the bar segments of the first group have a smaller cross section than the bar segments of the second group, wherein the bar segments of the first group are electrically connected in series and the bar segments of the second group are electrically connected in series and in parallel with the bar segments of the first group and wherein the bar segments of the first group are arranged closer to a slot opening in the radial direction than the bar segments of the second group.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 28, 2020
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Stefan Götz, Malte Jaensch
  • Patent number: 10622820
    Abstract: Embodiments describe a wireless charging transmitter coil includes: a support structure having an outer perimeter surrounding a contact housing and having first and second channels extending from the outer perimeter to the contact housing; first and second contacts positioned within the contact housing; and a wire wound around the outer perimeter of the support structure, the wire having a first end that extends through the first channel and a second end that extends through the second channel.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 14, 2020
    Assignee: Apple Inc.
    Inventors: Eric S. Jol, Christopher S. Graham, Demetrios B. Karanikos
  • Patent number: 10614951
    Abstract: A winding unit including a case is provided. The case has a receiving space capable of housing at least one turn of a coil portion in addition to a winding portion in a radial direction. In case, a blank portion having a dimension of one turn of the coil portion in the radial direction is formed between the two coil portions next to each other in the winding portion. When manufacturing the winding unit, the blank portion can be formed in a suitable position, and the number of turns of the winding portion (the number of coil portion) does not need to change. Further, an inductance value of the winding portion can be adjusted with simply structure.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 7, 2020
    Assignee: YAZAKI CORPORATION
    Inventors: Takahiro Nakahara, Ngahu Antony Wambugu, You Yanagida, Masao Ishizaka
  • Patent number: 10587157
    Abstract: A stator for a rotating electrical machine, the stator including a tubular core having a plurality of slots; and a coil mounted in the core, wherein the coil includes a plurality of conductor wires aligned in the slots, each of the conductor wires has ends projecting beyond the slot, a pair of the ends are bonded together to form a bonded end, a plurality of the bonded ends are arranged next to each other in a circumferential direction of the core and are arranged in a radial pattern so as to extend in a radial direction of the core, and a cap is formed by molding using a resin material having electrical insulation properties so that the cap integrally covers adjacent ones of the plurality of bonded ends.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: March 10, 2020
    Assignee: AISIN AW CO., LTD.
    Inventors: Yoichi Miyoshi, Junichi Yokota, Kiyotaka Koga, Junichi Sugawara, Hideaki Kimura
  • Patent number: 10574107
    Abstract: In some embodiments, a system includes a machine segment that includes multiple coils. Each coil is electrically isolated from the other coils in the machine segment, and each coil is electrically coupled to at least one electrical terminal to provide electrical access to the coil. Each electrical terminal provides electrical access to the coil to which it is electrically coupled such that the coil can be removably electrically coupled to an electrical circuit. The machine segment is also configured to be removably mechanically coupled to a second machine segment to form at least a portion of a stator or a portion of a rotor.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 25, 2020
    Assignee: BWP Group
    Inventors: James S. Smith, Marc W. Eichinger, Stephane A. Eisen, James D. Jore, Michael A. Kvam, Brian J. Sullivan
  • Patent number: 10511199
    Abstract: The rotary machine of the present disclosure is provided with an annular stator that has: an annular yoke section; multiple salient poles that protrude radially inward and are arranged circumferentially; and coils disposed on the salient poles. Circumferential surfaces of the salient poles are formed into tapered surfaces that taper toward the tip of the salient poles, and the coils include a first coil and a second coil.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: December 17, 2019
    Assignee: IHI CORPORATION
    Inventors: Narifumi Tojima, Takehiro Jikumaru
  • Patent number: 10505426
    Abstract: A reduction in size and an improvement in cooling performance of a dynamo-electric machine are achieved. A stator of a dynamo-electric machine according to the present invention includes a plurality of segment coils surrounding a rotation axis, a stator core partially accommodating each of the segment coils, and an insulating coating covering at least certain portions of the segment coils protruding from the accommodating space of the stator core, in which the segment coils are arranged in a direction from the rotation axis to a radially outer side, and the volume of the insulating coating is larger on a radially outer side than on a side close to the rotation axis.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kenichi Nakayama, Naoki Nishikawa
  • Patent number: 10483820
    Abstract: An induction motor stator encapsulate method, including arranging a stator of an induction motor in a case of the induction motor, wherein the stator comprises a stator core and a stator winding surrounding the stator core; filling a first encapsulating material into the case for forming a first insulation layer, wherein the first insulation layer directly covers the stator winding; and filling a second encapsulating material into the case for forming a second insulation layer, wherein the second insulation layer covers the first insulation layer; wherein a shrink rate of the first encapsulating material is smaller than a shrink rate of the second encapsulating material.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 19, 2019
    Assignee: Shanghai XPT Technology Limited
    Inventors: Miao Luo, Jifei Ma, Kangjun Luo, Zhaofeng Li, Bohan Yang
  • Patent number: 10461613
    Abstract: A stator includes a stator core and an insulator. The insulator includes a main body and a wall. An adhesive is attached to a portion of a triangular gap between the wall of the insulator and a yoke of the stator core. The adhesive is expandable, and adheres and fixes the insulator to the stator core by expanding to fill in the gap by being heated. Also, a stator manufacturing method includes attaching an adhesive to the wall of the insulator or an inside wall of the yoke, installing the insulator on a tooth, and heating the stator core and the insulator.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukio Tsuchiya, Hiroyuki Hattori
  • Patent number: 10447125
    Abstract: The present invention was contrived through attention being focused on the following in a prior-art distributed-winding coil: a “solenoid” configuration in which winding wires are to be wound is preserved when initially formed, but this configuration tends to be loosened during subsequent steps, and the initial winding sequence of the winding wires, or the position of the winding wires relative to each other, tends to be disrupted, and accordingly must be prevented, when a certain force is applied and the necessary bending or deformation is induced in coils with distributed winding in which the solenoid configuration is preserved, or when the coils are ultimately inserted into slots.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 15, 2019
    Assignee: Hayashi Industry Co., LTD.
    Inventors: Ko Kajita, Takahiko Hobo
  • Patent number: 10439461
    Abstract: A rotational electric machine achieving both of productivity and insulation property is provided. A rotational electric machine includes an iron core having a plurality of slots, and a plurality of segment conductive bodies arranged in the slots, wherein the iron core includes a coil guide arranged at, at least, one of opening portions of the slots, and the coil guide includes a slot insertion portion located between the slot and the segment conductive body and at least one separation portion located between the segment conductive bodies, and the slot insertion portion and the separation portion are arranged in the slot together with the segment conductive body.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 8, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi Matahira, Yoshimi Mori, Takahiro Oomori, Takayuki Koizumi
  • Patent number: 10411563
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: September 10, 2019
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10404127
    Abstract: Provided are a motor and method for producing the motor that automatically insert interphase insulation paper. Interphase insulation paper (7) has a parting strip (8) that partitions the boundary between windings (5) that are adjacent in the circumferential direction when inserted into coil ends (6). The parting strip (8) is sandwiched between the adjacent windings (5, 5).
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: September 3, 2019
    Assignee: FANUC CORPORATION
    Inventors: Gang Ren, Hidetoshi Uematsu
  • Patent number: 10374489
    Abstract: A system for cooling the teeth of an electric machine stator. The stator includes a stator core that may be formed of a plurality of laminations. Each lamination has a plurality of back iron apertures, a plurality of tooth tip apertures, and a plurality of elongated apertures. When the laminations are assembled to form the stator core, the back iron apertures align to form back iron inlet channels and back iron outlet channels, and the tooth tip apertures align to form tooth tip cooling channels. The elongated apertures are L-shaped and connect the back iron inlet channels and back iron outlet channels to the tooth tip channels. Cooling fluid may flow, for example, axially through a back iron inlet channel, azimuthally and radially inward through an elongated aperture to a tooth tip, axially along a tooth tip channel, and to a back iron outlet channel through another elongated aperture.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: August 6, 2019
    Assignee: Prippell Technologies, LLC
    Inventors: Wally E. Rippel, Eric Rippel
  • Patent number: 10325709
    Abstract: There is provided a power transmission device to switch a coupled state and an uncoupled state between a first member and a second member which are arranged in a transmission path of a driving force to thereby control transmission of the driving force. The device includes a movable body having ferromagnetic property, a first magnetic path and a second magnetic path, and a permanent magnet. The device also includes a driving portion to excite the electromagnet in the forward direction and then increases an attraction force on a side on which a magnetic flux is increased or decreased.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: June 18, 2019
    Assignee: SINFONIA TECHNOLOGY CO., LTD.
    Inventor: Hideaki Kuwabara
  • Patent number: 10250093
    Abstract: Stator for rotary electric machine has stator core and stator coil. The stator core has plural slots. The stator coil has a one-side conductor segment, a first other-side conductor segment, and a second other-side conductor segment. In the one-side conductor segment, a first leg and a second leg are inserted in first and second slots from one axial end side of the stator core. In the first other-side conductor segment, a third leg is inserted in the first slot from another axial end side of the stator core. In the second other-side conductor segment, a fourth leg is inserted in the second slot from the other axial end side of the stator core. The stator coil is formed such that the opposing legs are joined in each of the slots and a plurality of the one-side conductor segment and a plurality of the other-side conductor segment are sequentially joined.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 2, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyuki Hattori
  • Patent number: 10243416
    Abstract: An electric motor includes a stator and a rotor. One of the stator and the rotor includes a magnetic core, preferably an iron core. A reactive metal or a mixture or reactive metals is fixed to the magnetic core. The or each reactive metal has a reactivity greater than the reactivity of the metal of the magnetic core. A rotor and a stator is also provided. By fixing the reactive metal or metal mixture to the magnetic core of the motor, rotor or stator, oxidation and corrosion of the core can be avoided or reduced.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 26, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Ping Wo Poon, Tian Wen Li
  • Patent number: 10186922
    Abstract: An axial field rotary energy device can include a housing having an axis with an axial direction. A stator assembly can include a plurality of stator panels that are discrete panels from each other. The stators panels can be mechanically and stationarily coupled to the housing. Each stator panel can include a printed circuit board (PCB) having coils that are electrically conductive, each stator panel consists of a single electrical phase. In addition, rotors can be rotatably mounted within the housing on opposite axial ends of the stator assembly. The rotors can be mechanically coupled together with a rotor spacer. Each rotor can include magnets. In addition, in one version, no rotor is disposed between axially adjacent ones of the stator panels.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: January 22, 2019
    Assignee: INFINITUM ELECTRIC INC.
    Inventors: Bernhard L. Schuler, Rich Lee, Jorgen Rasmussen
  • Patent number: 10177620
    Abstract: In some embodiments, a system includes a machine segment that includes multiple coils. Each coil is electrically isolated from the other coils in the machine segment, and each coil is electrically coupled to at least one electrical terminal to provide electrical access to the coil. Each electrical terminal provides electrical access to the coil to which it is electrically coupled such that the coil can be removably electrically coupled to an electrical circuit. The machine segment is also configured to be removably mechanically coupled to a second machine segment to form at least a portion of a stator or a portion of a rotor.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: January 8, 2019
    Assignee: Boulder Wind Power, Inc.
    Inventors: James S. Smith, Marc W. Eichinger, Stephane A. Eisen, James D. Jore, Michael A. Kvam, Brian J. Sullivan