Patents Examined by Thomas Truong
  • Patent number: 11955842
    Abstract: A permanent magnet machine includes a machine housing having an inner surface that extends between a first housing end and a second housing end along a central longitudinal axis. The permanent magnet machine also includes a stator disposed within the machine housing, the stator having a stator core having an exterior surface extending between a first face and a second face along the central longitudinal axis, wherein the exterior surface defines a discontinuous region that is arranged to minimize points of contact between the inner surface and the exterior surface. The discontinuous region is at least partially defined by at least one of a first perturbation and a second perturbation that is circumferentially spaced apart from the first perturbation.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: April 9, 2024
    Assignees: Steering Solutions IP Holding Corporation, University of Akron
    Inventors: Kenneth Webber, Delynn Streng, Iftekhar Hasan, Yilmaz Sozer, Alejandro J. Pina Ortega, Jeffrey T. Klass, Mohammed R. Islam
  • Patent number: 11949292
    Abstract: A rotor including a magnet and a rotor core. The magnet includes a pair of shoulders and a housing hole configured to house the magnet such that the pair of shoulders are arranged in a circumferential direction. The rotor core includes an inner core, a pair of supporters, and a covering portion. The inner core is located radially inward of the housing hole. The pair of supporters is located radially outward of the inner core and arranged in the circumferential direction through the housing hole. The covering portion connects between the pair of supporters. The supporters are configured to support the magnet by holding the pair of shoulders. The covering portion is configured to cover the magnet from radially outside of the magnet and has a thin portion connected to at least the pair of supporters.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: April 2, 2024
    Assignee: DENSO CORPORATION
    Inventor: Yuki Takahashi
  • Patent number: 11949303
    Abstract: An object of the present invention is to efficiently cool a rotor coil even in a rotor provided with a wire connection plate. A stator of a rotating electric machine includes a stator core, a plurality of segment coils protruding from slots of the stator core and arranged in a radial direction, a connection conductor that connects the segment coils, and an insulating member that holds the connection conductor. The insulating member includes a through hole through which the segment coil penetrates and is accommodated. An opening through which a coolant can flow into the through hole is provided on an inner peripheral side of the insulating member.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: April 2, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kenichi Nakayama, Hiromitsu Okamoto, Satoshi Yamamura, Tomohiro Adachi
  • Patent number: 11942833
    Abstract: An intelligent power generation module includes a motor having a motor housing; a cooling water flow path; a first oil flow path extending along a circumferential direction of the motor housing such that oil flows through one end portion of the motor housing; a plurality of first injection nozzles being spaced apart from each other in a circumferential direction of the first oil flow path and configured to inject the oil into the motor housing; an oil injection housing mounted at the other end portion of the motor housing; a second oil flow path formed along a circumferential direction of the oil injection housing such that oil flows inside the housing for oil injection; and a plurality of second injection nozzles being spaced apart from each other in a circumferential direction of the second oil flow path and configured to inject the oil into the motor housing.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: March 26, 2024
    Assignees: LG Magna e-Powertrain Co., Ltd., AVL SOFTWARE AND FUNCTIONS GMBH
    Inventors: Hanbyul Kang, Kyunghoon Lee, Robert Poschl, Gernot Fuckar, Markus Preuss, Florian Bodensteiner, Deukhyun Hwang
  • Patent number: 11942844
    Abstract: 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: Grant
    Filed: August 29, 2019
    Date of Patent: March 26, 2024
    Assignee: Flender GmbH
    Inventors: Kevin Bodensiek, Robin Brenner, Klaus Schäfer, Norbert Schönbauer, Michael Weger
  • Patent number: 11936259
    Abstract: A food processor and an electric motor for a food processor. The electric motor includes: a stator core having a ring-shaped stator yoke and a plurality of stator teeth provided at an inner peripheral face of the stator yoke, two adjacent stator teeth defining a stator slot there between, the plurality of the stator teeth defining a stator hole coaxial with the stator yoke, and an outer contour of a radial section of the stator yoke being substantially circular and having a maximum radial dimension D; and a rotor core rotatably provided in the stator hole and coaxial with the stator hole, the rotor core having a maximum radial dimension d, in which 0.4?d/D?0.55.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 19, 2024
    Assignee: GUANGDONG MIDEA CONSUMER ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Xiantang Liang, Liancheng Chen, Congshan Pang, Zhifeng Wang, Lei Xiao, Zhenfeng Yang
  • Patent number: 11936245
    Abstract: An embodiment relates to a motor comprising: a shaft; a rotor connected to the shaft; and a stator disposed outside the rotor, wherein the rotor includes N rotor cores, and the number of holes formed through each of the N rotor cores is at least 2N. Accordingly, the motor allows the rotor to have a skew angle by using the multiple holes formed through the rotor cores.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: March 19, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Jung Kyu Lee
  • Patent number: 11936247
    Abstract: A rotor of the present invention includes a rotor core, and a magnet press-fitted into a magnet insertion hole provided in the rotor core, the magnet has a hard magnetic body and a resin layer that is laminated on the hard magnetic body, that is disposed on an outward side of the rotor core in a radial direction and that includes a soft magnetic body, and the resin layer has a groove portion extending in a direction crossing an insertion direction.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: March 19, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yoshihisa Kubota, Tadanobu Takahashi
  • Patent number: 11932111
    Abstract: A rectifier and a vehicle AC generator that can suppress the cost, the rectification loss, and the leakage current from increasing are provided. A rectifier is configured in such a way that in each of n sets, one of a positive electrode side semiconductor device and a negative electrode side semiconductor device is a MOSFET, in such a way that in at least one of the n sets, the other one of the positive electrode side semiconductor device and the negative electrode side semiconductor device is a specific diode, and in such a way that the specific diode is a Schottky barrier diode or a MOS diode, which is a MOSFET whose drain terminal and gate terminal are short-circuited.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 19, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinichiro Minami, Katsuya Tsujimoto, Keiichi Komurasaki, Shingo Inoue
  • Patent number: 11923739
    Abstract: An electric motor includes an end turn ring and a cooling structure that is in a thermally conductive relationship with the end turn ring.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: March 5, 2024
    Assignee: APPLE INC.
    Inventors: Dillon J. Thomasson, Kan Zhou, Rui Guan, Yateendra B. Deshpande, William M. Price
  • Patent number: 11923749
    Abstract: A casing (10) is divided into a cylindrical first case portion (51) integrally having a partition part (54), a second case portion (52) connected to one end of the first case portion in an axial direction and configured to cover a second space (S2), and a third case portion (53) connected to the other end of the first case portion in the axial direction and configured to cover a first space (S1). A signal cable passed through a through hole (54c) of the partition part extends from a sensor (72, 73) to an external connector (81) provided in the second case portion or the third case portion, and is anchored to the first case portion (51) in the vicinity of a through hole (54c) of the partition part.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: March 5, 2024
    Assignee: NTN CORPORATION
    Inventors: Aiko Myouki, Tetsuya Yamamoto, Shinya Taikou, Shiro Tamura, Naoya Takeuchi
  • Patent number: 11916442
    Abstract: A rotor may be provided with a rotor core that is fixed to a shaft and includes a plurality of through holes along an axial direction of the shaft. The rotor may be provided with a permanent magnet disposed in each of the plurality of through holes. The rotor may be provided with a functional fluid having a magneto rheological effect of fixing the permanent magnet in each of the plurality of through holes.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: February 27, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yasuhito Takei, Hiroshi Kimura, Atsushi Kubota
  • Patent number: 11916452
    Abstract: A stator winding system for a stator of an electric machine is provided. The stator has a number of windings to be positioned on stator teeth of the stator. At least two windings that follow one another in a current flow direction of an electric current and are thus arranged in series are formed from an electric conductor that is continuous in the current flow direction, forming a winding chain.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: February 27, 2024
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Torsten Müller, Harald Müller
  • Patent number: 11913421
    Abstract: The present invention belongs to the field of energy harvesting, and in particular relates to an ocean wave energy collector based on magnetic force and triboelectric effect. The ocean wave energy collector includes a plurality of protective shells connected by flexible metal spring modules; a magnetic oscillation system is installed in each protective shell in a matched mode and includes an electric energy output module and a plurality of magnetic oscillators, and each magnetic oscillator includes a first supporting body, a dielectric capsule, first magnet units, second magnet units, a supporting shell, and an electrode unit.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: February 27, 2024
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Pengcheng Jiao, Ali Matin Nazar, Yang Yang
  • Patent number: 11916446
    Abstract: A rotor for an electric machine includes a rotor assembly having an outer surface and including a plurality of poles with permanent magnets. A solid layer is formed on the outer surface of the rotor assembly and has an outer surface with a first coefficient of friction that is lower than a second coefficient of friction of the outer surface of the rotor assembly. The rotor includes an outer sleeve. The rotor assembly is press-fit into the outer sleeve.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anthony Michael Coppola, Alireza Fatemi, Derek Frei Lahr, Kestutis A. Sonta, Alan G. Holmes
  • Patent number: 11916437
    Abstract: In an IPM rotor, a first core sheet has a first sheet hole forming a part of an accommodation hole. The first sheet hole has an edge portion having a flat spring portion which is bent by a magnet through insertion of the magnet into the accommodation hole. A pair of recesses forming a clearance with respect to the magnet are formed at both side portions of the flat spring portion of the edge portion of the first sheet hole. A size of the clearance is set based on a relationship between a magnitude of a pressing force of the flat spring portion on the magnet and variation in pressing force.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: February 27, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masafumi Okazaki, Natsumi Sugi, Yu Hirotani, Akihiko Mori, Satoru Akutsu
  • Patent number: 11901773
    Abstract: This axial gap motor includes: a stator; and a rotor provided so as to be opposed to the stator in an axial direction. The rotor includes an annular rotor yoke, and a plurality of magnets provided to contact one surface of the rotor yoke so as to be arranged at predetermined intervals along a circumferential direction with magnetic poles thereof being different alternately. The one surface includes a plurality of facing areas facing and contacting the plurality of magnets, and a non-facing area not facing the plurality of magnets. The non-facing area includes partial areas each located between a pair of the facing areas adjacent to each other in the circumferential direction among the plurality of facing areas. The partial areas are formed to be recesses recessed in the axial direction relative to the facing areas.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 13, 2024
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventors: Yuuichi Nakamura, Tomoyuki Ueno, Tatsuya Saito
  • Patent number: 11901783
    Abstract: In a method for producing a winding overhang assembly for an electrical rotating machine, an insulating main body is produced at least partly from a dielectric material. Each of a plurality of conductors of a metal material is connected to the insulating main body via an intermediate layer, which is produced from a material which is different from the dielectric material of the insulating main body and from the metal material of the conductors and which is produced from silver, aluminum, antimony, magnesium, tin, zinc, lead, tantalum or from a mixture and/or from at least one alloy thereof. The conductors are hereby sprayed onto the intermediate layer by a thermal spraying method.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: February 13, 2024
    Assignee: Innomotics GmbH
    Inventors: Karsten Brach, Jens Dahl Jensen, Horst Kümmlee, Hartmut Rauch, Olaf Rehme, Jakob Schneck, Frank Seibicke, Oliver Stier, Mark Tobias Zegenhagen
  • Patent number: 11901787
    Abstract: A rotary electric machine includes a rotor and a stator. The stator has a coil end. The coil end has a plurality of lead wires. The plurality of lead wires have an inner lead wire with respect to the radial direction RD and an outer lead wire outside the inner lead wire with respect to the radial direction RD. The rotary electric machine includes a plurality of connection members. The inner lead wire and the outer lead wire are electrically and mechanically connected to the plurality of connection members. The plurality of connection members provide a heat transfer path from the inner lead wire. The inner lead wire and the outer lead wire demonstrate different vibration characteristics.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: February 13, 2024
    Assignee: DENSO CORPORATION
    Inventors: Mai Goto, Masayoshi Yamamoto, Shigenori Yoneda
  • Patent number: 11901782
    Abstract: A magnetically active unit of an electric machine with at least two poles includes a laminated core with slots, and at least one winding for each of the phases. The windings have an electric conductor which forms coil groups in the slots. The coils of the coil groups are formed with at least two sections of the electric conductors of at least one of the windings and are arranged so as to be electrically insulated from each other in the grooves. At least one first coil group of the coil groups of one of the windings has a first number of coils which deviates from a second number of coils of a second coil group of the coil groups of the same winding.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: February 13, 2024
    Assignee: Flender GmbH
    Inventors: Robin Brenner, Dominik Kohlmeier, Manuel Oberneder, Norbert Schönbauer, Karl-Heinz Senninger