Windings And Core Structure Patents (Class 310/179)
  • Patent number: 12646992
    Abstract: A stator for a rotating electrical machine is disclosed. The stator comprises a plurality of stator teeth wound with stator windings. The stator windings on each tooth comprise at least two parallel conductors which are wound as separate coils. The coils on one tooth are transpose connected with the coils on another tooth. This may help to reduce or eliminate circulating currents, while at the same time minimizing AC losses.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: June 2, 2026
    Assignee: Cummins Inc.
    Inventors: Shaohong Zhu, Richard Barden, Krzysztof Paciura
  • Patent number: 12620881
    Abstract: Among other things, the present disclosure relates to an alternator for high temperature applications, (i.e., an alternator capable of operating at temperatures greater than approximately 250° C.). The alternator for high temperature applications may include permanent magnets arranged in a topology which may enable the alternator and connected application system to start operating without an external or auxiliary power source. When used in geothermal applications, the alternator may be capable of using drilling fluid as a coolant.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: May 5, 2026
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Ben David McGilton, Lee Jay Fingersh
  • Patent number: 12603558
    Abstract: An axial field rotary energy device can include a rotor having an axis of rotation and a printed circuit board (PCB) stator having PCB panels. Each PCB panel has conductive layers, each conductive layer has coils, and each coil has radial conductors and end turn conductors. The PCB stator also has conductive pads coupled to a temperature sensor. Each conductive pad is connected to a terminal through a respective conductive trace. The conductive pads are axially aligned or located directly adjacent to respective end turn conductors in a conductive layer that is separated from the end turn conductors by an insulation layer.
    Type: Grant
    Filed: August 4, 2023
    Date of Patent: April 14, 2026
    Assignee: INFINITUM ELECTRIC INC.
    Inventors: Richard Lee, Edward C. Carignan, Paulo Guedes-Pinto
  • Patent number: 12600223
    Abstract: An energy assembly includes: an engine including a crank shaft; a starter that starts the engine; an energy converter that is connected to the crank shaft of the engine and converts rotational power of the crank shaft into another type of energy; controlling circuitry configured to control the engine, the starter, and the energy converter; a supporting body supporting the engine, the starter, the energy converter, and the controlling circuitry; and an energy interface that transmits the energy, generated by the energy converter, to an external device detachably attached to the energy assembly. The engine, the starter, the energy converter, the controlling circuitry, and the energy interface are integrated with each other.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 14, 2026
    Assignee: KAWASAKI MOTORS, LTD.
    Inventor: Yoshimoto Matsuda
  • Patent number: 12587054
    Abstract: Three-phase stator winding of a rotary electric machine and having: a plurality of coils each of which has two opposite ends; a plurality of first connection bridges, each of which defines a star connection of three coils and constitutes a star centre of the three coils by connecting a first end of each of the three coils to one another; and three second connection bridges which define a parallel connection of the star connections, are each provided with a corresponding pin defining a terminal of the three-phase stator winding towards the outside, and each of which connects a second end of a respective coil of each star connection to one another. Each second connection bridge has a seamless circular shape closed onto itself.
    Type: Grant
    Filed: September 7, 2023
    Date of Patent: March 24, 2026
    Assignee: FERRARI S.P.A.
    Inventors: Davide Ferrara, Paolo Faverzani, Enrico Allio, Luca Poggio
  • Patent number: 12567777
    Abstract: A coil includes a first coil layer and a second coil layer which is formed by winding a rectangular conductor. A side surface of the second coil layer contacts a side surface of the first coil layer in a second direction that is perpendicular to a radial first direction where the rectangular conductor overlaps. In the first coil layer, a second portion contacts a first portion. In the second coil layer, a fourth portion contacts a third portion. An outer surface of the third portion is closer to an outer peripheral side in the first direction than the outer surface of the first portion, and is closer to an inner peripheral side in the first direction than an outer surface of the second portion. An outer surface of the fourth portion is closer to the outer peripheral side in the first direction than the outer surface of the second portion.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: March 3, 2026
    Assignees: TOP CO., LTD., FUKUI PREFECTURAL GOVERNMENT
    Inventors: Kenji Sasaki, Hitoshi Otaki, Yoshinori Sasaki, Taiki Tanaka, Tomoya Okahashi
  • Patent number: 12537408
    Abstract: A motor stator having stator windings as polyphase windings wound onto a stator core. The winding is continuously wound in a wave shape with 2N winding layers, S winding phases, and 2P poles of each phase winding. 4×S×P slots are formed in the core. Each pole of each phase has two conducting wire groups, each group has two conducting wires wound in parallel in adjacent slots, and the pitch of each conducting wire group is a normal pitch of y, a jumper pitch of y+1, and a dislocation pitch. The jumper pitch has a first pitch of y?1 and a second pitch of y+1. The dislocation pitch has a third pitch of y and a fourth pitch of y+2. One jumper pitch is used for each conducting wire group at every P?1 non-jumper pitch. One dislocation pitch is used for each conducting wire group between at least two adjacent layers.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: January 27, 2026
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Zhihao Li, Xiangyang Li, Sen Shu, Mingzhe Li
  • Patent number: 12525910
    Abstract: A DC electric motor including both coils in a delta configuration and coils in a wye configuration. When pulses are fed to selected ones of the coils to power the electric motor, both coils from the delta configuration and coils from the wye configuration are fed with the DC pulse. In some embodiments, a similar electric generator is provided.
    Type: Grant
    Filed: December 21, 2023
    Date of Patent: January 13, 2026
    Inventor: Donald Moses
  • Patent number: 12500471
    Abstract: A first line, which extends through a circumferential center of a tooth, and a second line, which extends through a circumferential center of an undercut between two segments adjacent to the tooth, intersect at an angle C. A third line, which extends through a magnetic-flux-free region of a magnet, and a fourth line, which extends through a circumferential center of a power supply brush, intersect at an angle D. The third line and a fifth line, which extends through a circumferential center of one of magnetic poles of the magnet, intersect at an angle E. A reference line of a stator and a sixth line, which extends through a reference point of a brush holder, intersect at an angle F. A shift angle S, which is obtained by C+D?E+F, is set such that a phase difference between an armature torque and a cogging torque is 180°±80°.
    Type: Grant
    Filed: October 26, 2023
    Date of Patent: December 16, 2025
    Assignee: DENSO CORPORATION
    Inventor: Toshiki Misawa
  • Patent number: 12483098
    Abstract: A power supply of a motor for a vehicle includes: a terminal block mounted to a motor housing to prevent disconnection of a terminal connection portion configured to supply power to a stator coil of the motor; a terminal plate electrically connected to the terminal block; a bus bar provided on the terminal plate; a stator coil having a conductive connection terminal electrically connected to the bus bar; and an elastic member mounted to the bus bar and the conductive connection terminal to reduce vibration applied to the bus bar and the conductive connection terminal.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: November 25, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Tae Won Kim, Chan Hyeok Lee, Yo Sub Sim, Jae Eun Kim
  • Patent number: 12463492
    Abstract: A housing that accommodates a stator of a motor includes: an opening portion configured to accommodate the stator; an outer edge portion formed radially outward of the opening portion and in a circumferential direction in such a manner as to surround an outer periphery of the stator, the outer edge portion extending in a radial direction; and an accommodating groove configured to accommodate a solder portion where conductive wires including a winding of the stator are soldered and which is drawn out to the outer edge portion. The accommodating groove is placed in the outer edge portion, and is extended in any direction between a normal direction to the outer periphery at a circumferential position where the accommodating groove is placed and a tangential direction to the outer periphery at the circumferential position.
    Type: Grant
    Filed: July 23, 2024
    Date of Patent: November 4, 2025
    Assignee: MABUCHI MOTOR CO., LTD.
    Inventors: Yasuhiro Yamagata, Akiko Saito
  • Patent number: 12431755
    Abstract: An insulation system configured for use in an electric machine includes at least one first insulation section including at least one first insulation element, the first insulation element being configured to be applied to at least a portion of a first winding type of a plurality of windings, and the first insulation element having a first insulation thickness, and at least one second insulation section including at least one second insulation element, the second insulation element being configured to be applied to at least a portion of a second winding type of the plurality of windings, and the second insulation element having a second insulation thickness greater than the first insulation thickness of the first insulation element, wherein the first insulation section is arranged adjacent the second insulation section in a circumferential direction.
    Type: Grant
    Filed: August 2, 2023
    Date of Patent: September 30, 2025
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Raf Schuermans, Giovanni De Lauri, Takahito Endo
  • Patent number: 12418229
    Abstract: A switched reluctance motor, an electric vehicle, and an electric device. The switched reluctance motor comprises a stator and a rotor. A plurality of rotor teeth are evenly distributed at a side of the rotor facing the stator. A plurality of stator teeth are unevenly distributed at a side of the stator facing the rotor, and the plurality of the stator teeth are divided into a plurality of phase groups arranged in sequence. An angle between centerlines of two stator teeth at a junction between two adjacent phase groups is different from an angle between centerlines of two adjacent rotor teeth, so that when the stator teeth in one of the plurality of phase groups are aligned with the rotor teeth, the stator teeth in the rest of the plurality of phase groups are staggered from the rotor teeth.
    Type: Grant
    Filed: April 24, 2022
    Date of Patent: September 16, 2025
    Assignee: SHENZHEN TATFOOK NEW ENERGY CO., LTD.
    Inventor: Tiecai Li
  • Patent number: 12413112
    Abstract: A stator assembly includes a stator core including a plurality of slots configured to penetrate through the stator core in a circumferential direction, each of the slots including a plurality of layers in a radial direction; and a plurality of hairpin coils configured to fasten and interconnect to the slots, respectively, to form a coil winding. The hairpin coils include a main coil having a first slot pitch, an anomalous coil having a second slot pitch different from the first slot pitch, and a leader coil. In each of the slots, the main coil is disposed in each of a radially innermost layer of the layers, a radially outermost layer of the layers, and an intermediate layer of the layers between the innermost layer and the outermost layer. The leader coil is disposed in each of the innermost layer and the outermost layer.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: September 9, 2025
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Jae Min Lee, Ik Sang Jang
  • Patent number: 12401296
    Abstract: A power system including a power converter system and an electric machine is provided. In one aspect, the power converter system has first and second switching elements. The electric machine includes a first multiphase winding electrically coupled with the first switching elements and a second multiphase winding electrically coupled with the second switching elements. The first and second multiphase windings are arranged and configured to operate electrically opposite in phase with respect to one another. One or more processors control the first switching elements to generate first pulse width modulated (PWM) signals based on received voltage commands to render a first common mode signal and also control the second switching elements to generate second PWM signals based on received voltage commands to render a second common mode signal. The rendered first and second common mode signals have the same or similar waveform with opposite polarity with respect to one another.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: August 26, 2025
    Assignees: General Electric Company, General Electric Deutschland Holding GmbH
    Inventors: Kum Kang Huh, Rajib Datta, Vandana Prabhakar Rallabandi, John Russell Yagielski, Mohamed Osama
  • Patent number: 12395025
    Abstract: Presented are direct liquid cooling systems for regulating magnet temperature of electric machines, methods for making/using such systems, and motor vehicles equipped with traction motors having magnets cooled by such systems. An electric machine includes a stator assembly that is located inside a protective outer housing. The stator assembly includes one or more electromagnetic windings mounted onto a stator core. A rotor assembly is rotatably attached to the housing, coaxial with and spaced from the stator assembly. The rotor assembly includes one or more permanent magnets mounted to a rotor core. The rotor core includes one or more radially elongated feed grooves that are fluidly connected to one or more axially elongated feed channels. The rotor feed groove(s) fluidly connect to a direct liquid cooling system to receive therefrom a liquid coolant. Each rotor feed channel transports the liquid coolant into direct contact with a target surface of a magnet.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: August 19, 2025
    Assignee: GM Global Technology Operations LLC
    Inventors: Rebecca K. Risko Cattell, Edward L. Kaiser, Matthew J. Bozich
  • Patent number: 12395054
    Abstract: The invention relates to a method for producing a component of an electromechanical transducer that has windings, as well as to the component itself.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: August 19, 2025
    Assignee: Gehring Technologies GmbH + Co.
    Inventors: Jaro Bapp, Andreas Wiens, Wolfram Lohse
  • Patent number: 12384520
    Abstract: A rotor assembly has a sleeve, a rotor hub, a lamination core, and a plurality of tapered magnets disposed circumferentially around an inner diameter of the sleeve. The plurality of tapered magnets are configured to abut on one another. The plurality of tapered magnets includes a first set of tapered magnets and a second set of tapered magnets. Insertion of the first set of tapered magnets axially relative to the second set of tapered magnets is configured to increase a diameter of the sleeve. The rotor hub is configured to retain at least one of the lamination core, the plurality of tapered magnets, or the sleeve.
    Type: Grant
    Filed: December 27, 2023
    Date of Patent: August 12, 2025
    Assignee: Archer Aviation Inc.
    Inventors: Scott Graves, Diego Silva
  • Patent number: 12368356
    Abstract: A disclosed apparatus includes a housing for an assembly of an axial flux machine, the assembly including at least a stator, a rotor, and bearings attached to the rotor. The housing is configured to support and locate the bearings and the stator within pockets that are open on one side to allow the assembly to be inserted into the housing in a direction perpendicular to a rotational axis of the rotor.
    Type: Grant
    Filed: January 24, 2025
    Date of Patent: July 22, 2025
    Assignee: E-Circuit Motors, Inc.
    Inventor: George Harder Milheim
  • Patent number: 12348097
    Abstract: A method of electrically contacting at least one enameled copper wire, which forms a winding carried by a first component, with a second component of an electric motor, generator, sensor or electromagnet. The method includes forming at least one wire end of the at least one enameled copper wire into an electrical contact, positioning the electrical contact in a molding process, a molding compound formed in the molding process at least partially surrounds the first component and the at least one wire end, and contacting the electrical contact with the second component.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: July 1, 2025
    Assignee: NIDEC MOTORS & ACTUATORS (GERMANY) GMBH
    Inventors: Conrad Nickel, Jakob Schnitzer
  • Patent number: 12337692
    Abstract: A cooling system for a vehicle driven by in-wheel motors includes a cooling water channel provided in an in-wheel motor mounted on a wheel of a vehicle so that cooling water for cooling the in-wheel motor can pass through the cooling water channel, a cooling water channel provided in an inverter for driving and controlling the in-wheel motor so that cooling water for cooling the inverter can pass through the cooling water channel, a radiator provided to dissipate heat of cooling water that has cooled the in-wheel motor and the inverter by passing the cooling water, a cooling water circulation line connected such that cooling water can circulate between the cooling water channel of the in-wheel motor, the cooling water channel of the inverter, and the radiator, and a water pump configured to circulate cooling water through the cooling water circulation line by pumping cooling water in the cooling water circulation line.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: June 24, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Yeon Ho Kim, Jae Yeon Kim, Ho Young Jeong
  • Patent number: 12341389
    Abstract: An electric machine includes a stator core and hairpin windings. The stator core defines slots that are circumferentially arranged between an inner diameter and an outer diameter of the stator core. Each slot has a plurality of pin positions that is arranged in a direction that extends from the inner diameter of the stator core toward the outer diameter of the stator core. The hairpin windings have a plurality of electrical paths of interconnected hairpins disposed within the slots. Each of the plurality of electrical paths of interconnected hairpins have a plurality of typical hairpins and a plurality of atypical hairpins. Each typical hairpin has first and second opposing inwardly extending twist portions. Each atypical hairpin has a third inwardly extending twist portion and an outwardly extending twist portion disposed on an opposing end of the atypical hairpin relative to the third inwardly extending twist portion.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: June 24, 2025
    Assignee: Ford Global Technologies, LLC
    Inventor: Adeeb Ahmed
  • Patent number: 12323001
    Abstract: A stator (10) according to the present invention comprises: a yoke part (11) composed of a plurality of block bodies having an arc shape with a rectangular cross section; fixing members (12, 13) for disposing and fixing the plurality of block bodies in an annular shape; a plurality of teeth parts (14) erected on the peripheral surface of the yoke part; and a coil (15) wound around the plurality of teeth parts (14).
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: June 3, 2025
    Assignee: TBK Co., Ltd.
    Inventors: Akihiro Miyoshi, Mitsuyoshi Oba, Keisuke Kurihara
  • Patent number: 12316163
    Abstract: A plurality of conductive films are arranged so that their thickness directions intersect with respect to a direction of a magnetic flux generated from a plurality of magnetic poles. Each of the plurality of conductive films is configured so that a conductivity in a longitudinal direction is larger than a conductivity in a thickness direction, and a conductivity in a longitudinal direction is larger than a conductivity in a width direction.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: May 27, 2025
    Assignee: DENSO CORPORATION
    Inventors: Naomi Awano, Junichi Naruse, Hironari Suzuki
  • Patent number: 12294266
    Abstract: An electric machine includes a stator core and a winding. The stator core includes a plurality of radially extending teeth defining a number of slots in the stator core. The winding is positioned on the stator core and includes a plurality of conductors connected together to provide a plurality of parallel paths per phase for the winding. The winding defines a number of conductor layers in each slot, a number of poles, and a number of slots-per-pole-per-phase. The winding includes a plurality of standard-pitch end loops and a plurality of sets of over-under end loops. A plurality of crossover end loops for each of the plurality of parallel paths per phase are substantially aligned in a radial direction on the stator core.
    Type: Grant
    Filed: May 30, 2023
    Date of Patent: May 6, 2025
    Assignee: BorgWarner Inc.
    Inventor: Kirk Neet
  • Patent number: 12283867
    Abstract: A super-cooled propellant powered generator system which generates an amount of electrical energy and is driven by a super-cooled propellant includes first and second rotator support assemblies comprising first and second support units and guide members attached thereto, respectively. A rotator assembly includes a rotator unit disposed in a rotational relationship relative to the guide members, the rotator unit having one or more propulsion vanes mounted therein. A rotator magnet assembly includes at least a rotator magnet mounted around the rotator unit and rotational therewith. A stator assembly having a stator unit is disposed in an electrical generating orientation relative to the rotator magnet. A super-cooled propellant transmission assembly transmits super-cooled propellant to and through the support units and rotator unit into contact with the propulsion vanes thus rotating the rotator unit and rotator magnet mounted thereto relative to the stator unit, and generating the amount of electrical energy.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: April 22, 2025
    Inventor: John Imboden
  • Patent number: 12278529
    Abstract: A winding mat formed as a flat winding and to coil mat formed from it for producing a coil winding for an electric machine. To be able to manufacture different coil mats also with layer swap and conductor swap in an automated manner and in large series and with a high degree of reliability, it is proposed to join wave winding wires by plugging. To produce the coil mat, it is proposed, among other things, to join two individual mats by plugging the mats together.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: April 15, 2025
    Assignee: GROB-WERKE GMBH & CO. KG
    Inventors: Frederik Schmid, Ralf Rauscher
  • Patent number: 12249882
    Abstract: An electrical machine for use in an aircraft, including a rotor. The rotor includes a plurality of rotor poles, and a stator including a plurality of phases. Each respective phase occupies at least one elementary block and the at least one elementary block of each phase includes a set of conductors of the respective phase wound around a plurality of slots of the respective elementary block in a concentrated winding configuration. A mechanical shift angle between the respective concentrated windings of each pair of adjacent elementary blocks is greater than a rotor pole pitch. The rotor pole pitch is an angle between adjacent poles of the rotor.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 11, 2025
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SAFRAN ELECTRICAL & POWER, SAFRAN LANDING SYSTEMS
    Inventors: Nadhem Boubaker, Daniel Matt, Florent Nierlich
  • Patent number: 12244194
    Abstract: The present invention relates to a stator of an electric machine with a stator body having a stator axis, which stator body comprises stator grooves in which there runs an electric plug-in winding which is formed from multiple conductor elements (4), conductor elements (4) being provided which each run with conductor branches through one or two of the stator grooves and protrude from the stator grooves on at least one end face of the stator by means of conductor ends (4b) and form a winding head, the conductor ends (4b) of the conductor elements (4) being arranged in the corresponding winding head in a plurality of groups (7) distributed in the circumferential direction in relation to the stator axis, each group (7) comprising a plurality of conductor ends (4b) arranged in a radial direction in relation to the stator axis, in particular aligned in the radial direction, characterized in that at least one, in particular a plurality, of the conductor ends (4b) of each group (7), as viewed in the radial direction
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: March 4, 2025
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Heider, Meiko Boley, Nikola Goranovic, Tobias Hein
  • Patent number: 12218549
    Abstract: According to one embodiment, a rotary electric machine includes a stator and a rotor. In a stator iron core of the stator, tips of the teeth defining openings of the slots through which the armature windings of different phases pass include a pair of chamfers. A rotor iron core of the rotor includes a plurality of grooves the outer peripheral surface of which is concave along a central axis line. Each of the grooves forms a wave shape, and includes a first groove portion disposed in a leading side of the rotation direction and a second groove portion disposed in a trailing side of the rotation direction. The first groove portion and the second groove portion are asymmetric with respect to d-axis.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: February 4, 2025
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventor: Naoya Sasaki
  • Patent number: 12176779
    Abstract: An electric motor with stator includes pairs of windings. Winding wire ends of the pairs of windings are electrically contacted at end surfaces with three busbars to define three phases. The three busbars include power source connection terminals which are located adjacent to one another, and the second and third busbars extending over an angular range of approximately 210°, having a same contact scheme with four contact points following one another in the circumferential direction to contact the winding ends and are offset from one another by approximately 120° in the circumferential direction, and the first busbar has a different contact scheme. The first busbar includes a first section and a second section, three contact points located in the first section, a further contact point being located in the second section.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: December 24, 2024
    Assignee: NIDEC MOTORS &ACTUATORS (GERMANY) GMBH
    Inventors: Jürgen Schmid, Thomas Kübler, Matthias Fischer
  • Patent number: 12176792
    Abstract: An example engine-driven generators includes: a stator assembly having first mounting holes; a first generator housing configured to couple the stator assembly to an engine, and having second mounting holes; first stator alignment hardware configured to align the first mounting holes of the stator assembly with corresponding ones of the second mounting holes of the first generator housing; stator securing hardware configured to secure the stator assembly in cooperation with the first stator alignment hardware; first locating faces configured to mate with mating faces of corresponding ones of the second mounting holes to locate the first mounting holes with the second mounting holes; and first housing securing hardware configured to secure the first generator housing to the stator assembly.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: December 24, 2024
    Assignee: Illinois Tool Works Inc.
    Inventor: Nathan Joe Jochman
  • Patent number: 12136856
    Abstract: A hairpin conductor includes two wire segments each having respective first and second ends and a respective middle region. The segments are disposed in a side-by-side orientation such that their first ends are proximate each other and their second ends are proximate each other. The first ends are welded to each other and the second ends are welded to each other, or the middle regions are welded to each other, thereby providing a welded wire assembly, which is bent such that the two wire segments are bent equally to form the hairpin conductor. The hairpin conductor has a primary bend in the middle regions to form an apex thereat and first and second secondary bends in the two wire segments nearer to the apex than to the first and second ends to form respective first and second shoulders thereat. A method of forming the hairpin conductor is also presented.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: November 5, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: John D. Campbell, Edward L. Kaiser, Elizabeth Pepper, Caroline Bolt
  • Patent number: 12132351
    Abstract: A stator punching piece, a motor, a compressor and a household appliance are provided. The stator punching piece has a rotor hole, a yoke and multiple stator teeth. The yoke is provided on an outer circumference of the stator punching piece. The teeth are provided at intervals along an inner circumference of the yoke. Each stator tooth has a tooth body and a tooth shoe. One end of the tooth body is connected with the yoke and the other end of the tooth body is connected with the tooth shoe. A side of the tooth shoe facing the rotor hole is provided with an adjusting groove, and a centerline of the tooth body divides the stator teeth into a first area and a second area.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: October 29, 2024
    Assignee: ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD.
    Inventors: Famin Liu, Lan Yu, Xiaohua Qiu, Hui Chen
  • Patent number: 12132369
    Abstract: An electric machine includes a stator core and a multi-phase winding. The stator core includes a plurality of teeth defining a number of slots in the stator core. The multi-phase winding is positioned on the stator core and defines a number of poles, a plurality of parallel paths per phase, and a number of pole-turns for each parallel path. The number of pole-turns for each parallel path divided by the number of poles is a mixed number.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: October 29, 2024
    Assignee: BorgWarner Inc.
    Inventor: Kirk Neet
  • Patent number: 12107442
    Abstract: Disclosed is a coil including a first conductor disposed on a first plane, a second conductor disposed on a second plane different from the first plane, and including a first end electrically connected to a first end of the first conductor, and a second end positioned near a second end of the first conductor, and a third conductor disposed on the first plane, and including a first end electrically connected to the second end of the second conductor, and a second end positioned near the first end of the second conductor, wherein a pattern of the first conductor connecting the first end of the first conductor from the second end of the first conductor is in a clockwise or counterclockwise direction when the first plane is viewed from a first side, and wherein a pattern of the third conductor connecting the second end of the third conductor from the first end of the third conductor is in a direction opposite to the direction of the pattern of the first conductor when the first plane is viewed from the first side
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: October 1, 2024
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jaehyun Park, Beomwoo Gu, Jaeseok Park, Sungku Yeo, Youngho Ryu, Bohwan Choi
  • Patent number: 12101008
    Abstract: A winding for a stator comprises (i) a plurality of first end turns provided on a first end of the stator core, (ii) straight portions extending through the slots, and (iii) a plurality of second turns provided on a second end of the stator core. The straight portions are arranged in layers in the slots in a number of layers. Each of the second end turns connects straight portions in two consecutive layers of two slots and is defined by a first common twist associated with one of the two consecutive layers and a second common twist associated with another of the two consecutive layers. The first common twist and the second common twist are identical for the second end turns in a first half of consecutive layers, and the first common twist and the second common twist are different for the second end turns in a second half of consecutive layers.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: September 24, 2024
    Assignee: BorgWarner Inc.
    Inventors: Kirk Neet, Tim Sailors
  • Patent number: 12074490
    Abstract: A motor apparatus including a stator having a plurality of teeth formed in a circumference thereof, a rotor rotatably installed in the stator, and having a plurality of magnets disposed in a circumference thereof, and a 3-phase coil part having a plurality of coils wound around the teeth, respectively, in which the coils having a preset phase difference are arranged in parallel.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: August 27, 2024
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jae Woo Jung
  • Patent number: 12068651
    Abstract: Disclosed are a winding structure for an electric motor and an electric motor. The electric motor comprises an iron core (1) and a multi-phase winding structure (2), wherein the iron core (1) is provided with a plurality of grooves (11) arranged in the circumferential direction, and one side of the iron core (1) is an inserting side, and the other side is a welding side; the multi-phase winding structure (2) is arranged in the plurality of grooves (11) of the iron core (1), each phase of the winding structure (2) comprises N parallel winding sub-windings formed by a plurality of hairpin conductors of different shapes, and N is a positive even number; and the conductors, forming each phase of the winding structure (2), of the same sub-winding are located on a non-adjacent conductor layer corresponding to the grooves (11).
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 20, 2024
    Assignee: SAIC MOTOR CORPORATION LIMITED
    Inventors: Jun Zhu, Jian Wang, ShaoRui Huang, JieBao Li, Wei He, YaRu Qu
  • Patent number: 12062958
    Abstract: In this armature, facing surfaces which are portions where a first segment conductor and a second segment conductor are joined together are disposed so as to overlap each other as viewed in a radial direction, and an end part of at least one of the first segment conductor and the second segment conductor is provided with chamfered parts at edge parts on both circumferential sides of the end part.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: August 13, 2024
    Assignee: AISIN CORPORATION
    Inventors: Kiyotaka Koga, Tomotsugu Sugihara, Takahiro Kobuchi
  • Patent number: 12034347
    Abstract: The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed to correspond to the rotor, and a busbar disposed above the stator, wherein the stator includes a stator core and coils, the busbar includes a busbar body and a plurality of terminals disposed on the busbar body, the terminals include terminal bodies, first protrusions extending from end portions of the terminal bodies and connected to end portions of the coils, and second protrusions branched off from the first protrusions and connected to power terminals, and the plurality of second protrusions are disposed at the same position in radial and vertical directions of the busbar and disposed at equal intervals in a circumferential direction of the busbar.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: July 9, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Hwan Jung
  • Patent number: 12015314
    Abstract: A method for continuous operation of a rotating machine, the method is performed in a rotating machine having an inner stator and an outer stator.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: June 18, 2024
    Assignee: ABB Schweiz AG
    Inventors: Minos Beniakar, Luca Peretti
  • Patent number: 12009718
    Abstract: An armature includes an armature coil including a plurality of coil modules and a base member including a cylindrical back core. Each of the coil modules includes a corresponding partial winding of the armature coil and a back-yoke-side insulating wall formed on the back yoke side of the corresponding partial winding. The coil modules are arranged, on a radially inner side or a radially outer side of the base member, in alignment with each other in a circumferential direction. The base member has a plurality of first engaging portions formed therein and each of the coil modules has at least one second engaging portion formed in the back-yoke-side insulating wall thereof. The coil modules are fixed to the base member with each of the first engaging portions of the base member engaging with a corresponding one of the second engaging portions of the coil modules in the circumferential direction.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: June 11, 2024
    Assignee: DENSO CORPORATION
    Inventors: Akito Tamura, Yuki Takahashi, Kazuya Iwase
  • Patent number: 11996744
    Abstract: A stator structure of a vehicle motor includes a stator core assembly and a plurality of coil assemblies composed of flat wires. The stator core assembly includes an annular portion and a plurality of tooth portions. The tooth portions extend from the annular portion in a radial direction toward a center of the stator core assembly. Each coil assembly is configured around a corresponding tooth portion. Each coil assembly includes a first flat wire and a plurality of second flat wires that are electrically connected in parallel. The first flat wire is radially stacked and wound around the corresponding tooth portion. The second flat wires are arranged radially adjacent to the first flat wire and are electrically connected in series to the first flat wire. The second flat wires are alternately stacked and radially wound around the corresponding tooth portion.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: May 28, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hong-Cheng Sheu, Hsin-Yi Huang, Kuei-Yuan Huang
  • Patent number: 11990804
    Abstract: A rotating electric machine includes a field system having a magnet section and an armature having a multi-phase armature coil. The magnet section has easy axes of magnetization oriented to be more parallel to a d-axis at locations closer to the d-axis than at locations closer to a q-axis. The magnet section has an intrinsic coercive force higher than or equal to 400 [kA/m] and a residual flux density higher than or equal to 1.0 [T]. There are no inter-conductor members provided between electrical conductor sections of the armature coil. The armature coil includes a plurality of phase windings each of which is constituted of a plurality of partial windings. Each of the partial windings is formed of an electrical conductor that is multiply wound in the electrical conductor sections of the same phase. In each of the phase windings, the partial windings are connected in parallel with each other.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: May 21, 2024
    Assignee: DENSO CORPORATION
    Inventors: Akito Tamura, Yuki Takahashi, Atsushi Umeda
  • Patent number: 11962207
    Abstract: An apparatus for manufacturing a stator for an electric aircraft motor, wherein the apparatus includes at least a manufacturing device. The manufacturing device further includes at least a work-holding device configured to hold a first segment of teeth. The manufacturing device further includes at least a winding device configured to create a modular winding set in the first segment of teeth, wherein creating a modular winding set further include acquiring a continuous conductor and winding a continuous conducting coil upon each tooth of the plurality of teeth using the continuous conductor. The manufacturing device further includes at least an installation device configured to install a plurality of segment of teeth into the stator.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: April 16, 2024
    Assignee: BETA AIR, LLC
    Inventors: Fabian Baumann, Brandon White, Raffaello Verna
  • Patent number: 11955860
    Abstract: The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed outside the rotor, and a bus bar disposed on the stator, wherein the bus bar includes a terminal connected to a coil of the stator, the terminal includes a first terminal and a second terminal which are separated from each other in a circuit manner, the first terminal includes a first neutral terminal and a plurality of first phase terminals, the second terminal includes a second neutral terminal and a plurality of second phase terminals, first curvature centers of the plurality of first phase terminals are disposed to be different, second curvature centers of the plurality of second phase terminals are disposed to be different, a position of a curvature center of the first neutral terminal is the same as a position of a curvature center of the second neutral terminal.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: April 9, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Woong Seon Ryu
  • Patent number: 11949285
    Abstract: An electric machine for a vehicle includes: a stator body, the stator body having, in an alternating manner, stator teeth and stator grooves with conductor elements which are arranged therein, and a yoke section with a radially extending yoke height on the stator body radially outside the stator grooves and the stator teeth, the stator body having a stator outer radius. A ratio of the yoke height in relation to the stator outer radius is between 0.20 and 0.28.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: April 2, 2024
    Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: David Bauer, Josef Dubsky, Tobias Engelhardt
  • Patent number: 11942841
    Abstract: According to one embodiment, a stator includes a stator core and coils having a rectangular cross-section. In one or more slots, a first rectangular conductor, which is positioned innermost in a radial direction and in which a pair of short sides in a cross section face in the radial direction, and a second rectangular conductor, which is positioned outer side of the radial direction than is the first rectangular conductor and in which a pair of long sides in the cross-section face in the radial direction, are disposed. The first rectangular conductor includes a bending part bent toward a circumferential direction. The second rectangular conductor includes a bending part bent toward the circumferential direction and a twisted part twisted about the circumferential direction.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: March 26, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Masaru Kano, Hidenori Uchida
  • Patent number: 11942846
    Abstract: Various disclosed embodiments include illustrative stator winding interface devices, electric motors, and methods of manufacturing an electric motor. In an illustrative embodiment, a stator winding interface device includes phase plates, a neutral plate, and a structure configured to maintain the phase plates and the neutral plate in a rigid orientation.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: March 26, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Dang Dang, Logan Balliett