Patents Examined by Thanh Lam
  • Patent number: 11031858
    Abstract: A voice coil motor includes a base, a housing, a lower-resilient member, a lens frame, a coil, a magnet, an upper-resilient member, an upper cover plate, and a pin arranged on the base. The lower-resilient member, the lens frame, the coil, the magnet, the upper-resilient member, and the upper cover plate are arranged in sequence between the base and the housing. The lens frame and the coil are integrally formed. The coil surrounds an outer surface of the lens frame.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 8, 2021
    Assignee: TRIPLE WIN TECHNOLOGY (SHENZHEN) CO. LTD.
    Inventors: Long-Fei Zhang, Shin-Wen Chen, Yu-Shuai Li, Kun Li
  • Patent number: 11018544
    Abstract: A motor includes a rotor having a shaft centered on a central axis that extends in an axial direction, a stator which is disposed to face the rotor and includes a plurality of coils, a housing in which the rotor and the stator are housed, and a bus bar assembly that is disposed on one side of the shaft in the axial direction, wherein the bus bar assembly includes a plurality of bus bars that are electrically connected to the plurality of coils of the stator and a bus bar holder that holds the plurality of bus bars, and wherein at least one bus bar among the plurality of bus bars is placed on a disposition surface part provided on the bus bar holder and extends in a direction crossing the central axis.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: May 25, 2021
    Assignees: NIDEC TOSOK CORPORATION, NIDEC CORPORATION
    Inventors: Shigehiro Kataoka, Kazuhiro Homma, Yoshiyuki Kobayashi, Hideaki Uchise, Masato Aono, Akihiro Okita
  • Patent number: 11018545
    Abstract: An electric machine winding assembly including a stator and windings is provided. The stator may define a central axis. The windings may extend from the stator and each may include a pair of conductor ends. Each conductor end may include a minor side and a major side. The windings are arranged with the stator such that each of the major sides are aligned along a circumferential conductor axis relative to the central axis to facilitate welding adjacent conductor ends to one another. Each of the windings may further include two portions defining a U shape. Each of the two portions may include a lower portion, a mid-portion, and an upper portion. One of the mid-portions may include a first bend defining a twist shape to orient the major sides of one of the pair of conductor ends along the circumferential conductor axis.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: May 25, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Chun Tang, Huifen Qiu
  • Patent number: 11011949
    Abstract: Rotor (1) for a rotary electric machine, comprising: a shaft (2); at least one annular shaped magnet (10) engaged on the shaft; at least one elastically deformable component (9) radially interposed between the shaft (2) and the magnet (10).
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: May 18, 2021
    Assignee: MOTEURS LEROY-SOMER
    Inventors: Jeremy Chamand, Gaetan Adrien
  • Patent number: 11011947
    Abstract: A stator includes a main yoke having a cylindrical shape with a bottom, an auxiliary yoke having a band shape arranged on an outer or inner circumferential wall surface of this main yoke, and a field magnet arranged inside the main yoke. The auxiliary yoke is arranged along a circumferential direction on the outer or inner circumferential wall surface of the main yoke. One end of the auxiliary yoke has at least one protrusion, and another end of the auxiliary yoke has at least one recess facing and engaging in a circumferential direction with the protrusion either on the inner or outer circumferential wall surface of the main yoke.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 18, 2021
    Assignee: DENSO CORPORATION
    Inventors: Tsuyoshi Matsuda, Kazuhiro Miura, Yuuya Asai, Takashi Nagaya, Takumi Okano, Isoshi Soga, Kazuya Nagasaka
  • Patent number: 11005327
    Abstract: This rotating electric machine includes: a rotor having a shaft; a stator formed around the rotor; a seal ring formed around the shaft and having a plurality of through holes; a gland seal formed so as to surround the seal ring and having an oil feed port; and a partition plate formed between the seal ring and the gland seal, wherein the partition plate is formed at a position opposed to the oil feed port and is fixed to an upper wall and a lower wall in an axial direction of the gland seal, and the partition plate has a reinforcing plate at such a position as not to obstruct the oil feed port, the reinforcing plate being fixed to a side wall of the partition plate on a gland seal side and being in close contact with a circumferential wall of the gland seal.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 11, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koji Kawashima, Shingo Kingetsu
  • Patent number: 10992205
    Abstract: The present invention relates to an arrangement for cooling of an electrical machine. The electrical machine comprises a rotor rotatably arranged around a rotation axis, a stator including a stator winding arranged radially outside of the rotor, a housing enclosing the rotor and the stator, at least one drain hole configured to drain a cooling fluid from the housing, at least one spraying device configured to spray cooling fluid on the stator winding and a pump configured to pump cooling fluid to the spraying device. The arrangement comprises a control unit, which is configured, when the electrical machine is in operation, to receive information of the temperature in at least one position of the stator winding and to control the pump such that it pumps a flow rate of the cooling fluid to the spraying device, which is related to the estimated temperature of the stator winding.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: April 27, 2021
    Assignee: Scania CV AB
    Inventors: Jörgen Engström, Stefan Karlsson
  • Patent number: 10992203
    Abstract: The purpose of the present invention is to ensure reliability and installation space reduction of crossover wires of an axial gap type rotary electric machine. An axial gap type rotary electric machine having: a stator which is constructed by annularly arranging multiple core units about an axis of rotation, each of the core units having at least a core, windings disposed around the outer periphery of the core, and crossover wires leading out from the windings; at least one rotor which faces an axial end surface of the cores with a gap therebetween; and a rotary shaft which rotates along with the rotor.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: April 27, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hirooki Tokoi, Shuuichi Takahashi, Yasuei Yoneoka, Toshifumi Suzuki, Kenji Uzawa, Katsuyuki Yamazaki, Toru Sakai, Ryousou Masaki
  • Patent number: 10992210
    Abstract: A stator includes an insulator, a wire, a stator core, a cylindrical hollow terminal through which the stator is to be electrically connected, and a resinous molding material covering the stator core and an outer face of the hollow terminal. An inner face of the hollow terminal is exposed from the molding material, and a first end of the hollow terminal is open to the outside of the molding material.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: April 27, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Haruyuki Hasegawa, Fumiaki Tsuchiya, Toshihiro Tanaka, Tomohisa Hayashi
  • Patent number: 10965077
    Abstract: A device {i.e., a slip-ring or a homopolar motor/generator) (40, 50, 80) is adapted to provide electrical contact between a stator and a rotor (41, 83), and includes: a current-carrying brush-spring (31, 84) mounted on the stator, and having two opposite surfaces; a fibrous brush assembly (35, 69) mounted on the conductor, the brush assembly having a bundle of fibers (36, 71) arranged such that the tips of the fibers will engage the rotor for transferring electrical current between the stator and rotor; a ribbon (33, 85) of superconducting material mounted on each opposite surface of the current-carrying brush-spring and communicating with the stator and the brush assembly; and another ribbon (29, 86) of superconducting material mounted on the rotor.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: March 30, 2021
    Assignee: Moog Inc.
    Inventors: Norris E. Lewis, Barry K. Witherspoon
  • Patent number: 10965187
    Abstract: A motor-transmission arrangement for an adjusting device for adjusting two components adjustable relative to each other can include a planetary gear system having a planetary carrier, a planetary gear with planetary gear toothing and which is rotatably mounted in the planetary carrier and with a ring gear with an internal toothing which engages with the planetary gear toothing. An electric motor can have a motor shaft which can be rotated about a motor shaft axis, which shaft interacts with the planetary gear system, and a housing which is closed with first and second housing covers in which the motor shaft is mounted via a first bearing section and a second bearing section.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 30, 2021
    Assignee: IMS Gear SE & Co. KGaA
    Inventors: Simon Albert, Matthias Kieninger
  • Patent number: 10951090
    Abstract: Provided are a transmission device and an air-cooling island. The transmission device includes: a motor comprising a motor output shaft; and a speed reducer including a speed reducer input shaft. The motor output shaft is directly connected with the speed reducer input shaft.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: March 16, 2021
    Assignee: FLENDER GMBH
    Inventors: Wen Ming Wan, Dong Chen, Yi Chen You, Jing Ran Chen
  • Patent number: 10951081
    Abstract: A bobbin is provided for a stator of an electromagnetic device. The bobbin has two spaced-apart walls around which copper windings are wound. The spaced-apart wall arrangement reduces the material and space occupied by the bobbin, allowing for additional copper windings.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 16, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Jeffrey Hemphill
  • Patent number: 10951089
    Abstract: The present disclosure provides a vibration device, including a stator, an eccentric wheel and an electromagnetic driving assembly. The eccentric wheel rotates around a rotating shaft relative to the stator. The electromagnetic driving assembly includes at least one magnetic element and an induction coil. The at least one magnetic element is disposed on the eccentric wheel. The induction coil corresponds to the magnetic element, and the induction coil is disposed on the stator. When acurrent is applied to the induction coil, the induction coil acts with the magnetic element to generate an electromagnetic force to drive the eccentric wheel to rotate around the rotating shaft, so that the vibration device generates a vibration. The rotating shaft is disposed on the stator.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: March 16, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Che-Wei Chang
  • Patent number: 10938258
    Abstract: Embodiments involve rotors for axial flux induction rotating electric machines that use a soft magnetic composite for the rotor core. A first embodiment is directed to a rotor for a rotating electrical machine that transmits magnetic flux parallel to a shaft of the rotor. The rotor includes a rotor winding and a plurality of cores. The rotor winding consists of a solid piece of conductive material that comprises a plurality of cavities. Each core is placed in a respective cavity and comprises a highly resistive isotropic ferromagnetic powder.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 2, 2021
    Assignee: Maxxwell Motors, Inc.
    Inventors: Michael Cunnyngham, Maksym Pryimak
  • Patent number: 10931167
    Abstract: A power tool including a housing, a controller within the housing, and a brushless motor within the housing and controlled by the controller. The brushless motor includes a stator assembly, a rotor core, and a rotor enclosure. The stator assembly includes a stator core having stator laminations defining a stack length in an axial direction. The rotor enclosure includes a front end cap provided on a first side of the rotor core having a front bearing holder; and a rear end cap provided on a second side of the rotor core. The brushless motor further includes a fan, a front bearing, and a rear bearing. The front bearing holder and the fan define a bearing-to-fan length in the axial direction between axial ends of the front bearing holder and the fan, wherein a difference between the bearing-to-fan length and the stack length is less than 23.5 millimeters.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: February 23, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Andrew T. Beyerl, Keith Boulanger, Alex Huber, William A. Elger, Jeffrey M. Wackwitz
  • Patent number: 10931165
    Abstract: A vehicle having wheels for riding the vehicle over a carrier such as a road or rails, said vehicle having a battery and a generator connected thereto, said generator having a stator and a rotor being arranged to generate electrical power for charging said battery, wherein said wheel drives said rotor by means of a shaft connected to the centre of said wheel and axially extending therefrom, wherein the connection between said rotor and said shaft comprises a gear box for regulating the rotation speed of said rotor relative to the rotation speed of said wheel, characterized in that said gear box comprises a planetary gear train of the type having a sun gear, planet gears and an annular gear, and that said shaft, said sun gear and said rotor extend around a common axis.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 23, 2021
    Assignee: CARRIER CORPORATION
    Inventor: Rudolf Johannes Van Wijk
  • Patent number: 10931162
    Abstract: A rear frame has a plurality of engaging portions engaged with connection members. An engagement surface of the specific engaging portion which is a part of the plurality of engaging portions is in a state in which the connection member is in contact with the connection member, and the material of the rear frame is exposed. Among the plurality of engaging portions, the other engaging portion other than the specific engaging portion and the outer wall portion of the rear frame exposed to the outside space have a coating.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: February 23, 2021
    Assignee: DENSO CORPORATION
    Inventors: Toshio Tsutsui, Yasufumi Matsuo, Koji Matsuo
  • Patent number: 10931154
    Abstract: Provided is an axial-gap type motor in which positioning among components composing a yoke-provided core is easy so that manufacturing thereof can be performed accurately and easily, and which exhibits superiority in performance and cost. In the axial-gap type motor, either one of a stator and a rotor includes: a yoke-provided core including an annular back yoke and a plurality of magnetic pole cores projecting from a side surface of the back yoke; and coils. The yoke-provided core is a core-pieces-arrayed body obtained by arraying, in a circumferential direction thereof, core pieces obtained through division for the respective magnetic pole cores. Each core piece includes a magnetic pole core portion and a back yoke portion. Each core piece is a steel plate laminate obtained by stacking a plurality of steel plates in a radial direction.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: February 23, 2021
    Assignee: NTN CORPORATION
    Inventor: Yui Masuda
  • Patent number: 10923992
    Abstract: A drive device for use in a vehicle includes a motor, a substrate, and at least one inter-system ground connection capacitor. The motor includes a plurality of motor windings within one housing. Multiple inverters are mounted on the substrate. Each inverter is connected to a different battery and a different ground to form a system, where each of the motor windings is associated with its own system. The inter-system ground connection capacitor is mounted on the substrate, and electrically connects the grounds of the systems together to reduce electrical noise propagated outside the drive device to other parts in the vehicle.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: February 16, 2021
    Assignee: DENSO CORPORATION
    Inventor: Hiroyasu Sugiura