Coil Supports And Spools Patents (Class 310/194)
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Patent number: 12294269Abstract: A motor includes a stator core having an annular shape, a coil wound around a tooth of the stator core, a first terminal electrically connected to the coil, a housing that houses the first terminal, and a second terminal at least partially inserted into the first terminal housed in the housing. The second terminal includes an electrical connecting portion inserted into the first terminal and electrically connected to the first terminal. The housing includes a first restricting portion that restricts movement, in a circumferential direction of the stator core, of a portion of the second terminal other than the electrical connecting portion.Type: GrantFiled: October 26, 2022Date of Patent: May 6, 2025Assignee: DAIKIN INDUSTRIES, LTD.Inventor: Yoshinori Takayama
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Patent number: 12294279Abstract: A motor that is a wound field synchronous motor and includes a rotor and a stator. The rotor includes a plurality of winding portions configured to have a preset cross-section for generating a uniform effective air gap. The winding portions are spaced from each other a predetermined distance apart along a circumferential direction of the rotor. A field coil is wound around the plurality of winding portions.Type: GrantFiled: December 5, 2022Date of Patent: May 6, 2025Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Hyung Kwan Jang, Hoo Dam Lee, Gyeong Sik Choe, Byung Ho Min, Tae Gyu Lee
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Patent number: 12283859Abstract: The present invention may provide a motor including a stator core, an insulator coupled to the stator core, and a first terminal and a second terminal which are coupled to the insulator, wherein the stator core includes a yoke and a tooth protruding from the yoke, the insulator includes a body on which the tooth is disposed and a seating part extending from the body and disposed on the yoke, the seating part include a base and first to third partition walls extending from the base, the first terminal is disposed between the first partition wall and the second partition wall, and the second terminal is disposed between the second partition wall and the third partition wall.Type: GrantFiled: December 23, 2020Date of Patent: April 22, 2025Assignee: LG INNOTEK CO., LTD.Inventor: Seong Jin Kim
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Patent number: 12266986Abstract: A brushless motor is an inner rotor type brushless motor. The brushless motor includes a plurality of phase coils of multiple phases arranged around a rotation axis, and a plurality of terminals configured to connect the plurality of phase coils of multiple phases to a switching circuit. The plurality of terminals are located inside a circumscribed circle of the plurality of phase coils of multiple phases.Type: GrantFiled: February 5, 2021Date of Patent: April 1, 2025Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akito Nakamura, Kota Kitamura
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Patent number: 12237745Abstract: A stator includes: a stator core having an annular shape; teeth that protrudes inwardly in a radial direction from an inner peripheral surface of the stator core; an insulator that covers the teeth; and a winding wound around the teeth with the insulator interposed between the winding and the teeth. The teeth includes: a right surface extending in a first direction along a central axis of the stator core; a left surface extending in the first direction; a top surface that extends between the right surface and the left surface in a second direction intersecting the first direction; a bottom surface that extends between the right surface and the left surface in the second direction; and a through-hole portion penetrating through the teeth from the top surface to the bottom surface.Type: GrantFiled: December 20, 2022Date of Patent: February 25, 2025Inventors: Kai Iijima, Yuji Sasaki, Tatsuya Fukui
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Patent number: 12224639Abstract: A star disc has integrated current busbars for the interconnecting of rotor windings. A rotor may comprise the star disc, and a method may comprise producing the rotor.Type: GrantFiled: August 25, 2022Date of Patent: February 11, 2025Assignee: AUDI AGInventors: Martin Gerngroß, Lars Wetterau
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Patent number: 12196287Abstract: An electromagnetic actuator including: a mover; a stator; at least one coil provided to the stator and arranged on an outer periphery of the mover, the coil being configured to be energized to generate an electromagnetic force that exerts a driving force on the mover; at least one yoke member surrounding the coil, the yoke member being constituted by a plurality of yoke segments; and a mold resin filling a space between the yoke segments and the coil, the mold resin fixing the yoke segments to each other. The mold resin extends to an outer peripheral surface of the yoke member and forms an outside resin layer.Type: GrantFiled: August 25, 2020Date of Patent: January 14, 2025Assignee: SUMITOMO RIKO COMPANY LIMITEDInventors: Hironori Koyama, Tomohiro Kanaya, Takaaki Shimizu, Yasunori Kobayashi
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Patent number: 12152634Abstract: A radial stator includes a stator core, and the stator core includes a stator outer ring. M magnetic poles are arranged on an inner circumferential wall of the stator outer ring, and are evenly distributed along the inner circumferential wall of the stator outer ring. The M magnetic poles include M1 magnetic poles arranged along the inner circumferential wall of the stator outer ring and M2 magnetic poles arranged along the inner circumferential wall of the stator outer ring; M?2, M1?1, and M2?1; the M1 magnetic poles and the M2 magnetic poles are arranged on two sides of the stator outer ring with respect to a radial direction thereof, respectively; each of the M1 magnetic poles is provided with a first winding; and each of the M2 magnetic poles is provided with a second winding; and a coil turn N1 of the first winding is greater or less than a coil turn N2 of the second winding.Type: GrantFiled: May 11, 2021Date of Patent: November 26, 2024Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAIInventors: Dunying Zhong, Gao Gong, Xin Li, Mingxing Deng, Jianhui Wang, Jiajia Liu
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Patent number: 12149138Abstract: Electrical insulator assemblies fitted onto stator teeth each have a first flange and a second flange. An outer peripheral surface of the first flange has first and second recessed parts on first and second sides of a through hole in a circumferential direction. The first recessed part is open radially outwardly to the first side in the circumferential direction and to a second side in an axial direction. The second recessed part is open radially outwardly to the second side in the circumferential direction and to the second side in the axial direction. The first flange has a projection formed on a side surface on the first side in the circumferential direction and protruding to the first side in the circumferential direction and a projection formed on a side surface on the second side in the circumferential direction and protruding to the second side in the circumferential direction.Type: GrantFiled: September 9, 2022Date of Patent: November 19, 2024Assignee: AICHI ELECTRIC CO., LTD.Inventors: Masahiro Hasegawa, Shoji Mano, Takashi Hori
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Patent number: 12142983Abstract: A pivot motor for a hair clipper is provided, including a stator with a plurality of laminations, a bobbin located in operational relation to the stator and having a coil of wire wound around the bobbin, an armature being configured for driving a hair clipper moving blade at one end, and having at least one magnet at an opposite end, the armature having a pivot point, and the motor being configured for operation between 2.5 and 4.2 Volts.Type: GrantFiled: June 24, 2021Date of Patent: November 12, 2024Assignee: WAHL CLIPPER CORPORATIONInventors: David Joseph Todd, Rafi Syed, Curtis James De Frang, Stephan Beha, Dustin R. Taylor, Jon Thomas Freas, Jason Kyle Everly, Daniel Adam Blumhoff, Matthew Usterbowski, Sudhir Brahmandam, Matthew Jason Bowers, Scott Melton, Drew Paul Mitchell
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Patent number: 12081073Abstract: An electric machine includes a plurality of electromagnetic coils arranged circumferentially about the axis of rotation. Each coil defines a trapezoidally-shaped and tapered coil opening. The electric machine also includes a plurality of yokes that extend in an axial direction and a plurality of teeth. At least one of the plurality of yokes is tapered in the axial direction, and at least one tooth extends from each of the plurality of yokes. The plurality of teeth are each tapered in a radial direction to enable the plurality of teeth to fit within a corresponding trapezoidally-shaped and tapered coil opening.Type: GrantFiled: December 28, 2023Date of Patent: September 3, 2024Assignee: EVR MOTORS LTDInventors: Oleg Gaspar, Victor Kislev, Ruslan Shabinski, Eliyahu Rozinsky
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Patent number: 12062962Abstract: A stator for a rotating electrical machine comprises a stator mass comprising notches housing the electrical conductors, wherein at least one portion of the electrical conductors, if not the majority, are in the form of a U-shaped pin, and each electrical conductor comprises first and second legs respectively extending axially in first and second notches, each electrical conductor comprising several strands, the strands of the first leg of an electrical conductor being arranged in the first notch in a radially reverse order of the strands of the second leg of the same electrical conductor in the second notch.Type: GrantFiled: February 25, 2020Date of Patent: August 13, 2024Assignee: NIDEC PSA EMOTORSInventors: Saadia Makhlouki, Tahar Hamiti, Moustafa Al Eit, Fatma Abid, Alejandro Fernandez, Sara Bazhar
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Patent number: 11973405Abstract: A stator for a rotating electric machine includes a stator core, a coil having a coil end, a cooling jacket that is attached to the stator core so as to house the coil end in the cooling jacket and that allows cooling oil to flow therethrough, introduction parts, and discharge parts. The coil end includes first portions, extending parallel to an end surface of the stator core, and pairs of second portions, each pair being connected to both ends of a corresponding one of the first portions, the pairs extending in a direction parallel to an axial direction. The cooling jacket includes an inner circumferential wall and an outer circumferential wall. The introduction parts are provided on the outer circumferential wall, and the discharge parts are provided on the inner circumferential wall.Type: GrantFiled: November 23, 2021Date of Patent: April 30, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Sumio Shirai, Daichi Maruyama
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Patent number: 11942844Abstract: A tooth-wound coil of a stator or of a stator segment of a dynamo-electric machine having two straight sections spaced apart from each other and running substantially parallel. Two 180° curves are located on the ends thereof, wherein the straight sections have an active part area, the axial extend of which is less than or equal to that of the straight section. The tooth-wound coil has a symmetrical extension plane running in the longitudinal direction. An insulation material is provided around the straight sections of the tooth-wound coil. The material effects groove isolation and/or phase isolation in the stator or stator segment.Type: GrantFiled: August 29, 2019Date of Patent: March 26, 2024Assignee: Flender GmbHInventors: Kevin Bodensiek, Robin Brenner, Klaus Schäfer, Norbert Schönbauer, Michael Weger
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Patent number: 11936266Abstract: The present invention may provide a motor including a housing, a stator disposed in the housing, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the stator includes a stator core, a first insulator disposed on the stator core, and a coil disposed on the first insulator, the first insulator includes a body on which the coil is disposed, a guide extending from one side of the body and including an opening, and a holder extending from one portion of the guide and including a groove, and one portion of the coil is disposed in the opening of the guide and the groove of the holder.Type: GrantFiled: September 11, 2019Date of Patent: March 19, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Jung Woo Jo, Moon Jae Lee
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Patent number: 11909296Abstract: A magnetic bearing is provided. The magnetic according to the present disclosure includes: a stator core disposed to surround a central axis; a plurality of bobbins coupled to the stator core; a coil wound around the bobbin; and a positioning member coupled to the plurality of bobbins and determining positions of the plurality of bobbins, and the positioning member has a circular shape centered on a central point.Type: GrantFiled: April 6, 2021Date of Patent: February 20, 2024Assignee: LG ELECTRONICS INC.Inventors: Sena Jeong, Kiwook Lee, Seongki Baek
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Patent number: 11894747Abstract: A drive motor for a suction device or a machine tool in the form of a handheld power tool or a semi-stationary machine tool, wherein the drive motor includes a stator having an excitation coil assembly and a rotor having a motor shaft, which is rotatably mounted around a rotational axis on the stator or with respect to the stator by means of a bearing assembly, wherein the rotor is received in a rotor receptacle of the stator, the inner circumference of said receptacle having grooves which extend along longitudinal axes that run parallel to the rotational axis and have insertion openings which are open towards the rotational axis and are provided for inserting excitation coils of the excitation coil assembly and are closed by groove covers, wherein the groove covers are in engagement with the engage-behind contours of the grooves at their opposite longitudinal sides, each of which extends along the longitudinal axis of the respective groove, said longitudinal axis being transverse to a transverse spacing betwType: GrantFiled: April 30, 2020Date of Patent: February 6, 2024Assignee: FESTOOL GMBHInventors: Florian Goos, Volker Barth, Hans-Dieter Braun
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Patent number: 11757324Abstract: A rotary motor stator includes a plurality of stator teeth and a plurality of terminal securing blocks. The stator teeth are arranged in a ring to define a rotor accommodation space. Each stator tooth includes an inner side, a winding section and an outer side. The inner side is closer to the rotor accommodation space than the outer side, and the winding section is located between the inner side and the outer side for winding a coil. Each terminal securing block is fixed to the outer side of each stator tooth, and each terminal securing block includes a first wire slot configured to secure an end of the coil. An angle between a line passing through a center of the ring and a center of each terminal securing block and a lengthwise direction of the first wire slot is an acute angle.Type: GrantFiled: October 4, 2021Date of Patent: September 12, 2023Assignee: DELTA ELECTRONICS, INC.Inventors: Cheng-Hsun Tsai, Yung-Chih Hsu
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Patent number: 11750047Abstract: A motor includes a stator unit formed by coupling plural stators to one another into an annular shape. Each of the stators has: an iron core having an arc-shaped core-back portion and a tooth portion protruding from the core-back portion, the iron core forming slot portions between the iron core and adjacent ones of the stators; insulating members disposed on both end portions, in the axial direction, of the iron core; insulating films disposed so as to be in contact with inner walls of the slot portions of the iron core; and a winding disposed in the slot portions and wound over the iron core with the insulating members and the insulating films interposed therebetween. In a portion of each of the insulating films that is in contact with the inner wall of the slot portion, at least a portion that is in contact with an outer circumferential surface of the tooth tip portion has a length in the axial direction longer than the length of the iron core in the axial direction.Type: GrantFiled: May 29, 2019Date of Patent: September 5, 2023Assignee: Mitsubishi Electric CorporationInventors: Keisuke Kato, Koji Masumoto, Yuki Tamura, Nobukazu Kosone
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Patent number: 11735972Abstract: A set of interchangeably pairable end caps is provided for electrically insulating a variety of stator cores having differing axial stack heights. Each pair of end caps cooperatively defines a generally radially projecting, generally axially extending wire barrier including axially opposed ends. Each of the ends forms a respective rounded winding ramp configured to smoothly guide wiring into a wire trough in part defined by the wire barrier.Type: GrantFiled: December 30, 2022Date of Patent: August 22, 2023Assignee: Nidec Motor CorporationInventors: Daniel E. Bailey, Chetan O. Modi, Paul G. Michaels, Jahir Flores, Ryan M. Bastien
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Patent number: 11722020Abstract: A stator of a brushless motor has an iron core, a bobbin, and a winding assembly. The iron core has multiple stator poles mounted on an interior annular surface of a core body and spaced apart from each other. The bobbin is mounted on one of two open ends of the core body and has a substrate, at least one neutral connector mounted on an upper surface of the substrate, and at least one neutral solder pad mounted in the at least one neutral connector. The winding assembly is formed by one wire wound on multiple stator poles and the connectors. The winding assembly is electrically connected to the at least one neutral solder pad.Type: GrantFiled: April 26, 2021Date of Patent: August 8, 2023Assignee: Techway Industrial Co., Ltd.Inventors: Fu Hsiang Chung, Hong Fang Chen, Shih Wei Hung, Wei Ting Chen, Yu Chin Lin
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Patent number: 11682952Abstract: A method for producing a wire coil. Multiple windings of a ply of the wire coil including an insulated wire are wound onto a coil core of the wire core starting from a first winding up to a last winding. The last winding is hooked in an electrically insulating deflection hook of the wire coil which is fixed with respect to the coil core and the wire is deflected by the deflection hook.Type: GrantFiled: March 3, 2021Date of Patent: June 20, 2023Assignee: AUDI AGInventors: Michael Schwarzer, Mohammed Razki
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Patent number: 11677286Abstract: A salient pole machine a rotor having a rotor rim. A plurality of salient poles having a pole winding and extending in the radial direction are attached to the rotor rim, with the rotor rim having an outermost radial surface between the pole-rim interfaces. A plurality of axial rib-like rim extensions project radially from the outermost radial surface of the rotor rim with a predetermined circumferential distance between neighboring rim extensions. A plurality of axial pole grooves in the salient pole match and receive the rim extensions. Fixing elements fix the rim extensions in the pole grooves and are inserted axially into facing interface holes defined in facing sidewalls of the pole grooves and the rib-like rim extensions. The fixing elements are radially inward of the pole windings and are accessible for axial sliding removal from the facing interface holes.Type: GrantFiled: September 26, 2022Date of Patent: June 13, 2023Assignee: GE Renewable TechnologiesInventor: Michel Whebe Spiridon
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Patent number: 11677290Abstract: A motor according to an embodiment includes a stator and a plurality of terminals. The stator includes a tubular shape, and includes a lead wire. The stator is provided with the plurality of terminals. The plurality of terminals are arranged in a circumferential direction. Furthermore, the plurality of terminals are integrally formed with a member including electrical conductivity, and a recessed portion is formed at an outer peripheral wall portion of the member including electrical conductivity in a rotational axis direction. Moreover, the lead wire passes through the recessed portion and is wound around an inner peripheral portion and an outer peripheral portion of the stator.Type: GrantFiled: March 9, 2018Date of Patent: June 13, 2023Assignee: MINEBEA MITSUMI Inc.Inventor: Tomohisa Suzuki
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Patent number: 11658522Abstract: An electric machine includes a stator and a rotor. The stator has a yoke fitted over a ring that has a plurality of teeth with gaps therebetween for fitting metal windings. The ring of teeth has an inner circumference that is closed and to connect the teeth, and an outer circumference with open gaps or slots between the teeth. The metal windings are fitted through the open outer circumference. Regions of the closed inner circumference between the teeth are treated such that the region's magnetic permeability is reduced relative to the remainder of the stator. The reduction in magnetic permeability provides a magnetic flux barrier between the teeth.Type: GrantFiled: October 13, 2017Date of Patent: May 23, 2023Assignee: Ford Global Technologies, LLCInventors: Feng Liang, Alfredo R. Munoz, Leyi Zhu, Michael W. Degner
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Patent number: 11637470Abstract: An elastic-locking winding carrier for a preformed coil assembly of a stator of an electric motor, includes a winding portion adapted to receive a winding having a wound electrical conductor to produce a coil. The winding portion includes upper and lower portions, first and second openings arranged on the winding portion, and first and second flexible members located inside respective first and second openings and extending thereacross. The first and second flexible members are arranged such that either of the first and second flexible members cooperates with a tooth of the stator as a function of the magnitude of the gap between the tooth and the lower portion of the winding portion when the preformed coil assembly is mounted on the tooth to fix the preformed coil assembly to the tooth.Type: GrantFiled: January 21, 2021Date of Patent: April 25, 2023Assignee: ETEL S.A.Inventors: Iván Garcia-Herreros, Johann Pourchet
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Patent number: 11616423Abstract: 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: GrantFiled: August 4, 2022Date of Patent: March 28, 2023Assignee: INFINITUM ELECTRIC, INC.Inventors: Rich Lee, Paulo Guedes-Pinto
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Patent number: 11616411Abstract: A set of interchangeably pairable end caps is provided for electrically insulating a variety of stator cores having differing axial stack heights. Each pair of end caps cooperatively defines a generally radially projecting, generally axially extending wire barrier including axially opposed ends. Each of the ends forms a respective rounded winding ramp configured to smoothly guide wiring into a wire trough in part defined by the wire barrier.Type: GrantFiled: April 30, 2020Date of Patent: March 28, 2023Assignee: Nidec Motor CorporationInventors: Daniel E. Bailey, Chetan O. Modi, Paul G. Michaels, Jahir Flores, Ryan M. Bastien
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Patent number: 11581774Abstract: The present invention provides a motor including a stator around which coils are wound, a rotor disposed inside the stator, a rotating shaft coupled to the rotor, insulators positioned between the coils and the stator and including outer circumferential surfaces around which the coils are wound, and a motor housing configured to accommodate the insulators, wherein wings configured to arrange the coils are connected to the outer surfaces of the insulators, and an accommodation space configured to accommodate the wings is formed inside the motor housing.Type: GrantFiled: January 10, 2017Date of Patent: February 14, 2023Assignee: LG INNOTEK CO., LTD.Inventor: Yong Jin Kim
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Patent number: 11532964Abstract: A generator including a stator winding, a rotor positioned radially inside the stator winding, including multiple coil assemblies each using a flat wire, a primary termination plate residing radially inside the rotor configured to connect a wire of a coil assembly to an adjacent wound coil and a secondary termination plate residing radially inside the rotor configured to connect a wound coil to an adjacent wound coil and connect the wound coil to a terminus connection.Type: GrantFiled: January 22, 2020Date of Patent: December 20, 2022Assignee: Hamilton Sundstrand CorporationInventors: Eric Alan Larson, Brady A. Manogue, David S. Behling, Andrew P. Grosskopf
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Patent number: 11522402Abstract: In a stator, coils of multiple phases are wound around a stator core via an insulator. A guide member is provided on one side of the stator core in the axial direction and guides the terminal line of the coil in the circumferential direction at a position overlapping the coil in the axial direction. Parts of the plurality of terminal lines drawn in the circumferential direction on the bottom part, which is the same end surface in the axial direction of the guide member, are shifted in the axial direction and the radial direction respectively.Type: GrantFiled: January 27, 2020Date of Patent: December 6, 2022Assignee: DENSO CORPORATIONInventor: Koji Hotta
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Patent number: 11515743Abstract: An electric motor includes a stator assembly including a lamination stack, a printed circuit board assembly (PCBA), and a plurality of windings. The PCBA is coupled to the lamination stack at a first axial end of the stator assembly. The windings are wrapped about the lamination stack to form coils. Each winding includes crossover portions extending about a portion of a circumference of the stator assembly to connect pairs of opposite coils. The crossover portions are located at a second axial end of the stator assembly opposite the first axial end.Type: GrantFiled: November 27, 2019Date of Patent: November 29, 2022Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Andrew T. Beyerl, Derek J. Schwab
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Patent number: 11482896Abstract: A compressor provided with a motor includes several core block assemblies aligned in the circumferential direction of a bobbin and the several core block assemblies have a V-shaped bending shape.Type: GrantFiled: January 29, 2020Date of Patent: October 25, 2022Assignee: LG Electronics Inc.Inventor: Donggi Shin
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Patent number: 11476729Abstract: A salient pole machine (30) comprises a rotor (20) rotating about a machine axis, said rotor (20) having at its circumference a rotor rim (21) with a predetermined outer radius (29), whereby a plurality of salient poles (22), each extending in radial direction, is attached to said rotor (20) at said rotor rim (21) at a respective pole-rim interface (24). The mechanical properties of the configuration are improved by providing at said pole-rim interface (24) a plurality of axial rib-like rim extensions (25) projecting radially from said rotor rim (28) with a predetermined circumferential distance (d) between neighboring rim extensions (25), by each salient pole (22) having a plurality of axial pole grooves (26) matching and receiving said rib-like rim extensions (25) at the respective pole-rim interface (24), and by providing fixing elements (27) to fix said rib-like rim extensions (25) in said pole grooves (26).Type: GrantFiled: March 3, 2017Date of Patent: October 18, 2022Assignee: GE Renewable TechnologiesInventor: Michel Whebe Spiridon
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Patent number: 11462966Abstract: The present disclosure provides a motor configured to receive driving power from a connector including power terminals. The motor comprises a housing, a terminal block disposed inside the housing, and at least one terminal located adjacent to the terminal block. The power terminals are configured to penetrate through the terminal block, and the at least one terminal is configured to be brought into contact with the power terminal according to a movement of the connector when hairpin coils are inserted in the connector, such that the driving power is applied to the hairpin coils via the power terminal.Type: GrantFiled: January 7, 2020Date of Patent: October 4, 2022Assignee: LG MAGNA E-POWERTRAIN CO., LTD.Inventors: Wonjung Sung, Yangsoo Lee, Hojun Shin, Kyeonghwan Kim, Gyeongjae Park, Junho Ahn
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Patent number: 11451104Abstract: A motor drive apparatus includes: a power device constituting a portion of a power conversion circuit for generating electric power for driving a motor and having input/output terminals; a printed wiring board having a hole; a bus bar connected to both of the power device and the printed wiring board, wherein the bus bar includes a first plate-like connector portion to be fixed to the input/output terminal, a second connector portion to be connected to the printed wiring board, and an extension portion extending between the first connector portion and the second connector portion that will pass through the hole.Type: GrantFiled: August 12, 2020Date of Patent: September 20, 2022Assignee: Fanuc CorporationInventors: Hironao Tanouchi, Jianzhou Chen
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Patent number: 11444504Abstract: Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.Type: GrantFiled: January 27, 2020Date of Patent: September 13, 2022Assignee: Nidec Motor CorporationInventors: Joshua M. Biro, William D. Moore
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Patent number: 11437873Abstract: A plurality of split iron cores combined with each other to form an annular shape and having yoke portions arranged along an outer circumference of the annular shape and tooth portions protruding to an inner side in a radial direction from the yoke portions, insulators disposed at both ends in an axial direction of each split iron core, and a coil wound around each tooth portion through at least parts of the insulators, are included. The insulators have protrusions protruding from end surfaces in a circumferential direction of each yoke portion. When the coil is wound around the tooth portion, each protrusion is deformed, thereby being fixed together with the yoke portion.Type: GrantFiled: April 9, 2019Date of Patent: September 6, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaki Shinohara, Daisuke Shijo, Takao Ishibashi
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Patent number: 11431209Abstract: The invention relates to a stator (8) for an electromagnetic motor or generator comprising windings (4) and a magnetic circuit, the stator (8) comprising a yoke with a circular or polygonal shape and winding support teeth (3). Each winding (4) rests on a tooth (3) while at least partly surrounding a winding support (13, 14), each winding support (13, 14) comprising or being associated with snap snap-fitting means (15?) that cooperate with complementary snap-fitting means (3?) supported by a tooth (3) associated with the winding support (13, 14) so that the winding support (13, 14) is fastened to the associated tooth (3).Type: GrantFiled: December 13, 2018Date of Patent: August 30, 2022Assignee: Whylot SASInventors: Vasile Mihaila, Romain Ravaud
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Rotor assembly with magnets and cooling channels and cooling channel separation element in the shaft
Patent number: 11418077Abstract: A rotor assembly for an electric machine includes a rotor core, a plurality of permanent magnets, which are arranged within a magnet pocket each, formed in the rotor core, with a clearance extending in the axial direction, and a shaft connected to the rotor core for conjoint rotation. A cooling channel arrangement is formed within the rotor assembly, and includes a first cooling channel extending within the shaft, a second cooling channel fluidically connected to the first cooling channel and extending in the radial direction along an end face of the rotor core, and a third cooling channel, which, adjoining the second cooling channel, extends in the axial direction through the clearances in the magnet pockets. The arrangement further includes a separation element, which separates an interior of the shaft into a first shaft portion, in which the first cooling channel extends, and into a second shaft portion.Type: GrantFiled: July 26, 2019Date of Patent: August 16, 2022Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBHInventors: Nils Krais, Philipp Söntgerath -
Patent number: 11411454Abstract: In a rotary electric machine, each of coils includes coil terminals led out from a coil main body. The coil terminals are connected to bus bars. When a diameter of each of the bus bars is defined as D, a diameter of a cross section of a coil wire is defined as “d”, a Young's modulus of the coil wire is defined as E, a linear expansion coefficient of a material of the bus bars is defined as ?1, a linear expansion coefficient of a material of a stator core is defined as ?2, and an estimated temperature difference between a room temperature and a use environment temperature is defined as ?T, a length L of at least one of the coil terminals from an end on the coil main body side to a connecting portion to the bus bar satisfies the following expression: L?((3?dED(?1??2)?T/10)1/2/10.Type: GrantFiled: June 8, 2016Date of Patent: August 9, 2022Assignee: Mitsubishi Electric CorporationInventors: Ryuichi Kitora, Masaya Inoue, Ryuji Kitamura, Kota Katsuragi
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Patent number: 11342815Abstract: A temperature detection unit for a stator of an electric motor, includes a plate, a support element, at least two feet, and at least two temperature sensors, wherein the temperature sensors are arranged one on each of the feet.Type: GrantFiled: August 29, 2019Date of Patent: May 24, 2022Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBHInventors: Florian Balling, Christian Finger-Albert, Stefan Oetzel, Michael Menz
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Patent number: 11286941Abstract: A pump assembly (1) includes a rotor axle (45) extending along a rotor axis (R), an impeller (12) fixed to the rotor axle (45), a pump housing (11) accommodating the impeller (12), and a drive motor with a stator (17) and a rotor (51). The rotor (51) is fixed to the rotor axle (45) for driving the impeller (12). A rotor can (57) accommodates the rotor (51). The rotor can (57) includes a rotor can flange (63). An electronics housing (13) has a cap (21) including a first material (139) forming a front face (19) of the cap (21). The front face (19) extends essentially perpendicular to the rotor axis (R). The first material (139) is at least partially overmolded with a second material (141) at an inner side of the cap (21). The second material (141) is more heat-conductive than the first material (139).Type: GrantFiled: December 12, 2019Date of Patent: March 29, 2022Assignee: GRUNDFOS HOLDING A/SInventors: Erik Bundesen Svarre, Jan Plougmann, Therkel Damm, Jan Carøe Aarestrup, Klaus Vestergaard Kragelund, Morten Liengaard Svarre
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Patent number: 11223260Abstract: The invention provides a coil molding attached to a stator of a motor, the coil molding including a coil wound around each of teeth of the stator, and a bus bar connected to the coil and molded integrally with the coil. The invention also provides another coil molding attached to a stator of a motor, the coil molding including a set of coils wound respectively around a plurality of teeth of the stator, the set of coils being molded integrally with each other.Type: GrantFiled: November 2, 2017Date of Patent: January 11, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuichi Yoshikawa, Keiichiro Nukada, Hirokazu Yamauchi, Mitsuoki Hishida
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Patent number: 11204038Abstract: Bobbins of an annular electromagnet each have a bobbin body that has a coil wire wound around an outer periphery thereof and is attached to a respective tooth of an annular stator core by having the corresponding tooth inserted therethrough. A first flange portion in a rectangular hallow shape is provided on an end surface of the bobbin body near the center of the annular stator core and a second flange portion in a rectangular hallow shape is provided on the other end surface of the bobbin body. A coil winding amount increasing means is formed at least on the first flange portion or the second flange portion and increases the amount of winding of the coil wire wound around the bobbin body.Type: GrantFiled: April 20, 2018Date of Patent: December 21, 2021Assignee: EDWARDS JAPAN LIMITEDInventors: Yongwei Shi, Toom Miwata, Yoshiyuki Sakaguchi
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Patent number: 11171554Abstract: A stepping motor includes a stator, a rotor rotatably supported by the stator, and an auxiliary magnetic member. The auxiliary magnetic member has a body, side edge parts at both circumferential ends of the body, and an opening between the side edge parts. The auxiliary magnetic member is elastically mounted around a flange of the stator. The auxiliary magnetic member includes, at one of the side edge parts, a projecting part protruding radially inward from a projected inner circumferential surface of the body across the opening.Type: GrantFiled: May 29, 2019Date of Patent: November 9, 2021Assignee: AISAN KOGYO KABUSHIKI KAISHAInventors: Katsuhiko Makino, Shinji Murai
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Patent number: 11165300Abstract: An insulator includes an extended portion extended along the axial direction of a motor stator from an annular member. The extended portion includes at least one protruding portion protruding in the outer-diameter direction from a guide surface that guides a winding in the circumferential direction of a motor stator. This protruding portion includes an abutting surface capable of abutting the winding guided by the guide surface. The abutting surface includes a slant portion that comes close to the annular member toward the outer-diameter direction. The slant portion is capable of abutting a semicircular portion of the winding with the circular cross-sectional shape at the outer-diameter side.Type: GrantFiled: January 9, 2020Date of Patent: November 2, 2021Assignee: YAMADA MANUFACTURING CO., LTD.Inventors: Satoshi Watanabe, Masahiko Hoshino, Kimihiko Arakawa
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Patent number: 11146134Abstract: To cool field winding from its inner peripheral side and increase an insulation performance, salient-pole rotor (3) has rotor yoke (12) provided along rotation shaft (11), magnetic cores (13) protruding outward in radial direction from outer peripheral portion of rotor yoke (12) and arranged at regular intervals in circumferential direction, magnetic head (14) provided at radial direction outer side of magnetic core (13), and field winding (15) wound around outer peripheral surface of magnetic core (13) between rotor yoke (12) and magnetic head (14). And, insulating structure of ventilation path of salient-pole rotor (3) has ventilation groove (15a) opening to inner peripheral surface of field winding (15) and penetrating field winding (15) in radial direction, ventilation hole (14a) penetrating magnetic head (14) in radial direction and communicating with ventilation groove (15a), and stepped portion (15b) formed at portion, at magnetic head (14) side, of ventilation groove (15a).Type: GrantFiled: March 5, 2018Date of Patent: October 12, 2021Assignee: MEIDENSHA CORPORATIONInventor: Kenichi Taira
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Patent number: 11139703Abstract: An arrangement for mounting a coil winding on a stator tooth, the arrangement comprising a mounting element having a first mounting arm for receiving a first stator tooth and a second mounting arm for receiving a second stator tooth, wherein the first mounting arm is movable relative to the second mounting arm between a first position and a second position; means for mounting an electrical conductor on the first stator tooth and the second stator tooth when the first mounting arm is in the first position relative to the second mounting arm to form a coil winding on the first stator tooth and the second stator tooth; and means for placing the first mounting arm in the second position relative to the second mounting arm when the conductor has been mounted on the first stator tooth and the second stator tooth to allow the first stator tooth and the second stator tooth to be removed from the first mounting arm and the second mounting arm respectively.Type: GrantFiled: December 4, 2015Date of Patent: October 5, 2021Assignee: PROTEAN ELECTRIC LIMITEDInventors: Jamie Bell, Samuel Broadbridge
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Patent number: 11056956Abstract: A disc motor uses first, second magnetic components and third, fourth magnetic components of first, second magnetic disc set of a magnetic set to carry out magnetization in the motion direction, a coil of a coil set of an induction set is arranged perpendicularly to the motion direction, so as to form a four magneto-mechanical force effect; poles of the first, second magnetic components and the third, fourth magnetic component of the first, second magnetic disc sets are arranged oppositely to each other if they are different in polarity and adjacently to each other if they are the same in polarity; with the switching of forward reverse circuit power supplies of an induction switch circuit, magnetic resistant force can be avoided, the whole motion process is magnetically assisted, input power can be reduced effectively, and output power is increased.Type: GrantFiled: February 3, 2016Date of Patent: July 6, 2021Assignees: YUZEN SUSTAINABLE ENERGY CO., LTD., Yuzen (HK) SUSTAINABLE ENERGY CO., LTD., YUZEN SUSTAINABLE ENERGY PTE LTD.Inventors: Yung-Shun Hsu, Ming-Chun Hsu, Wen-Yu Hsu