Patents Examined by Tran Nguyen
  • Patent number: 10103605
    Abstract: A polyphase electric motor (1) of a motor vehicle which includes a rotor (6) and a stator (2, 5, 13) surrounding the rotor and including a plurality of stator windings (5) around stator teeth (4, 19) defined by notches (3) in a stator magnetic mass (2). According to the invention, the motor includes a device for determining an angular position (17) and/or the speed of rotation of the rotor, including a plurality of magnetic field sensors (18) which are stationary relative to the stator. The sensors are arranged in notches (3) and comprise large casing surfaces extending in planes that are tangential to the stator magnetic mass, such that the sensors detect only a radial component of the magnetic field inside the stator magnetic mass.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: October 16, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Mamy Rakotovao, Khadija El Baraka, Svetislav Jugovic
  • Patent number: 10090743
    Abstract: In an interior permanent magnet motor, a magnet insertion hole of a rotor core is curved into an arc shape, and a convex portion side of the arc shape is arranged on a center side of a rotor. The magnet insertion hole has a first line, a second line, and a pair of third lines. The first line is located on the radially outer side of the second line. Each of the third lines connects the first line and the second line to each other. The first line includes an arc portion and a pair of concave portions. Each of the concave portions is located at an end of the arc portion of the first line.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: October 2, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masahiro Nigo, Kazuhiko Baba, Kazuchika Tsuchida
  • Patent number: 10090783
    Abstract: The present invention relates to a method and a device for converting energy using a change of a contact area and a contact angle of liquid and, more specifically, to a method and a device for converting mechanical energy into electric energy by applying a reciprocal phenomenon of electrowetting, wherein liquid and gas are positioned between two facing substrates and energy is converted by using a volume change of a fluid, such that the present invention has the advantages of preventing channel-blocking without requiring all facing electrodes to be patterned, simplifying a device configuration, implementing easy control, and removing the need to apply an external power source.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: October 2, 2018
    Assignees: Korea Electronics Technology Institute, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Soon Hyung Kwon, Won Keun Kim, Chul Jong Han, Jeongno Lee, Youn Sang Kim, Jun Woo Park
  • Patent number: 10088024
    Abstract: The present invention relates to a linear electro-mechanical actuator for transferring a rotational motion to a linear motion. The actuator provides a piston being at least partly arranged inside a housing. The actuator further provides a transmission module including a rotating portion having a load-carrying surface and a non-rotating portion being operatively engageable to each other. The transmission module is adapted to transfer a rotational motion of the rotating portion to a linear motion of the piston via the non-rotating portion. The actuator further provides a lubricating member having a porous polymeric matrix and a lubricating material, the load-carrying member being arranged adjacent to the transmission module. Thereby, the actuator allows for lubrication of at least a portion of the load-carrying surface of the rotating portion upon movement of the rotating portion. The linear electro-mechanical actuator may not require, or may at least minimize, the need of relubrication.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: October 2, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Pär Högberg, Mikael Brage
  • Patent number: 10084355
    Abstract: An electrical machine is disclosed comprising a stator cavity. The stator cavity is axially divided by a distribution plate into a winding chamber containing stator windings of the electrical machine and a handling chamber. The handling chamber has one of a fluid inlet and a fluid outlet and the winding chamber has the other of the fluid inlet and fluid outlet. In use fluid is passed from the fluid inlet to the fluid outlet via the handling chamber, the winding chamber and an array of fluid passages in the distribution plate providing fluid communication between the handling chamber and winding chamber. The array of fluid passages comprises passages of at least two different cross-sectional areas.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: September 25, 2018
    Assignee: ROLLS-ROYCE plc
    Inventors: Geraint W Jewell, Ellis F H Chong, Maurice Shortte
  • Patent number: 10077815
    Abstract: A one-way clutch structure includes: a pair of clutch members disposed between an output shaft and a drive shaft so as to oppose each other in an axial direction; and an engagement element interposed between these clutch members. When a rotation speed of the output shaft exceeds a rotation speed of the drive shaft, the engagement element engages with the clutch portion to connect the output shaft and the drive shaft so as to be integrally rotatable. When the rotation speed of the output shaft becomes lower than the rotation speed of the drive shaft, the engagement of the engagement elements is released to cut off connection between the output shaft and the drive shaft.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: September 18, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Hideki Fujiwara, Takeshi Takaki
  • Patent number: 10069379
    Abstract: An electric motor system includes a stator and a cover. The stator has windings that are affixed to an end periphery of the stator. The cover is secured to stator and defines a channel and a plenum. The channel extends along the end periphery and is configured to direct cooling fluid about the windings. The plenum extends over at least twenty percent of an outer perimeter of the cover and is configured to direct cooling fluid into the channel.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: September 4, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Prasad Dev Hanumalagutti, Michael W. Degner, Becky Sue Morris
  • Patent number: 10069356
    Abstract: The present invention provides a hollow rotor structure for a direct-current motor and a winding structure of the same are provided for use in a direct-current motor. The hollow rotor structure includes a commutator, can output element, and a hollow rotor. The hollow rotor includes an iron core wound with a plurality of windings and is formed with an axial hole extending along the axial direction of the hollow rotor. Once mounted in a housing, the hollow rotor is spaced from a stator fixed in the housing and is separately connected to the commutator and the output element. When the commutator supplies a current to each winding, the hollow rotor generates the corresponding electromagnetic fields, which repel the magnets on the stator respectively. Thus, the hollow rotor generates a rotating force and outputs the rotating force through the output element.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: September 4, 2018
    Assignee: Xingu Motor Inc.
    Inventor: Lien-Hsin Wu
  • Patent number: 10069385
    Abstract: We describe a method of manufacturing a housing for the stator of an axial flux permanent magnet machine, in particular a Yokeless and Segmented Armature motor, the machine having a stator comprising a set of coils wound on respective stator bars and disposed circumferentially at intervals about an axis of the machine, and a rotor bearing a set of permanent magnets and mounted for rotation about said axis, and wherein said rotor and stator are spaced apart along said axis to define a gap therebetween in which magnetic flux in the machine is generally in an axial direction.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: September 4, 2018
    Assignee: YASA LIMITED
    Inventors: Charles Edmund King, Jonathan James Biddulph
  • Patent number: 10069368
    Abstract: An outer rotor motor includes a stator, an end cap for use with the stator, and a stator mount operable to facilitate mounting of the stator to a machine. The end cap includes wire-routing structure facilitating routing of the stator wiring. The structure includes a wire-routing trough that defines a wiring pathway though which the wiring is routed. The trough is positioned at least in part radially inside the core and includes a bottom located between the core margins. The trough further includes a side that is spaced radially inward from the core and projects at least in part axially relative to the bottom. The stator mount is radially located within the wiring pathway.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: September 4, 2018
    Assignee: Nidec Motor Corporation
    Inventors: Luke Chen, Dengchang Shi
  • Patent number: 10069387
    Abstract: A fixing method for fixing a coil insulator which is provided between a stator core 5 including a back yoke 7 and a plurality of teeth 8 projecting in the radial direction from the back yoke 7, and a coil 6 wound around the stator core 5, to the stator core 5, includes preparing the stator core 5 in which a fixing hole 11 is formed corresponding to a respective one of the teeth 8, on an end face in the axial direction of the back yoke 7, and preparing a plurality of coil insulators 12 which include each a main body 14 composed of a heat-softenable insulating material and arranged on the circumference of a respective one of the teeth 8, and a fixing portion 20 which is projected in the radial direction from the main body 14 and covers the fixing hole 11. Each coil insulator 12 is arranged on the circumference of a respective one of the teeth 8 by fitting thereto.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: September 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroyuki Hattori
  • Patent number: 10056813
    Abstract: An electromagnetic unit configured for being employed in a stator of an electric machine. The electromagnetic unit is constituted by a unitary solid body, and comprises a neck portion constituted by two end extensions sufficiently spaced apart for receiving therein a portion of a driven component of the electrical machine. The end extensions define therebetween a symmetry axis. The electromagnetic unit further comprises a frame extending from the end extensions and lying on the same or parallel plane as that of the end extensions. The frame has a first frame portion extending to one side of the symmetry axis to an extent W1, and a second frame portion extending to the other side of the symmetry axis to an extent W2<W1. W1, W2 are measured perpendicular to the symmetry axis, and wherein at least the first frame portion is configured for receiving therein a coil of the electrical machine.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: August 21, 2018
    Assignee: E.V.R. MOTORS LTD.
    Inventors: Eliyahu Rozinsky, Viktor Kislev, Ruslan Shabinski
  • Patent number: 10050489
    Abstract: A brush-holder for a motor vehicle starter comprising at least one first electrically conductive cage receiving a first brush having a first polarity, at least one second cage receiving a second brush having a second polarity different to the first polarity, at least one support plate on which the first cage and the second cage are attached, the support plate being electrically connected to the second polarity, and a deformable heat-sensitive member that is deformable from a pre-defined temperature, wherein the deformable member is arranged so as to electrically insulate the first cage relative to the support plate and wherein it further comprises a means for moving the first cage or the support plate in such a way as to establish contact between the first cage and the support plate following a deformation of the deformable member.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 14, 2018
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Maximilien Gentil, Marie-Ange Nalin, Julie Gouges
  • Patent number: 10050486
    Abstract: A motor bobbin having a bobbin body portion around which a coil is to be wound, and flange portions provided integrally to both end portions of the bobbin body portion. The bobbin includes: a molded resin article formed by using a polymer having amide linkages, and an insulating paper having an aramid paper made of an aramid fibrid and an aramid short fiber. The surface of the molded resin article and the aramid paper are directly bonded to each other. The motor bobbin can cope with an increased efficiency and an increased power output of a motor generator or the like.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: August 14, 2018
    Assignee: DUPONT TEIJIN ADVANCED PAPERS (JAPAN), LTD.
    Inventors: Shinji Naruse, Tatsushi Fujimori, Chihiro Kondo, Yasunori Tanaka
  • Patent number: 10038353
    Abstract: A dual-rotor electric rotating machine includes a stator and first and second rotors that are arranged with the stator interposed therebetween. The stator includes a stator core, at least one stator winding and a stator core support. The at least one stator winding is formed of a plurality of electric conductor segments each of which is substantially U-shaped to have a base and a pair of end portions. The electric conductor segments are received in slots of the stator core so that the end portions of the electric conductor segments are located on the same side of the stator core as the stator core support and the bases of the electric conductor segments are located on the opposite side of the stator core to the stator core support. Each corresponding pair of the end portions of the electric conductor segments are electrically connected with each other.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: July 31, 2018
    Assignee: DENSO CORPORATION
    Inventor: Shin Kusase
  • Patent number: 10038352
    Abstract: A generator armature including a plurality of laminate sheets stacked to form an annular arrangement of armature teeth, whereby each pair of adjacent armature teeth is separated by an axial winding slot extending a direction essentially parallel to an axis of rotation of the generator; and a plurality of radial cooling channels, whereby a radial cooling channel is realized to transport a cooling medium and extends from an axial winding slot to an interior cavity of the generator, and wherein a radial cooling channel includes a series of aligned notches in the laminate sheets of a laminate stack is provided. A laminate sheet for an armature of a generator, a cooling arrangement, a generator, a wind turbine, and a method of cooling stator windings arranged on an armature of a generator is also provided.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: July 31, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Giovanni Airoldi, Mads Peter Zippor Leth Andersen, Erik Groendahl, Bo Nedergaard Jacobsen, Peter Hessellund Soerensen, Arwyn Thomas
  • Patent number: 10033235
    Abstract: A rotor for an electric machine comprises a central core, arms extending radially relative to the core, these arms each comprising two rims extending on either side of the arms, permanent magnets positioned inside housings that are delimited by opposing lateral faces of adjacent arms, an outer face of the core extending between adjacent arms, and the rims of the arms of the rotor. Plates made from a material more flexible than the permanent magnets are positioned between the rims of the arms and the face of the permanent magnet facing away from the axis of the rotor to hold the magnets. The plate having, in the axial direction, a height close to the height of the permanent magnets, the ratio between the width of the plate and that of the magnet being between 0.9 and 1.1, without being equal to 1.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 24, 2018
    Assignee: Valeo Equipments Electriques Moteur
    Inventors: Lilya Bouarroudj, Mamy Rakotovao, Jean-Claude Matt
  • Patent number: 10033240
    Abstract: Disclosed is a motor including a housing, a stator arranged in the housing, a rotor unit arranged in the housing to rotate with the stator unit, and a rotating shaft rotating along with the rotor unit, wherein the housing includes a first housing in which the stator unit and the rotor unit are arranged, a second housing in which one end of the rotating shaft is arranged, and a third housing connected with the second housing.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: July 24, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Seong Jin Kim, Kyung Sang Park, Chang Hyun Park
  • Patent number: 10027193
    Abstract: Provided is an interior permanent magnet motor, including: a rotor including a plurality of permanent magnets; and a stator. The rotor further includes a rotor core. The rotor core has a plurality of magnet insertion holes. A plurality of slits are formed in a region of the rotor core, which is located on a radially outer side of the magnet insertion holes. At least two of the slits are formed so that a core region sandwiched between the two slits has a portion increased toward the radially outer side.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: July 17, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masahiro Nigo, Kazuchika Tsuchida
  • Patent number: 10027192
    Abstract: An interior permanent magnet motor includes: a rotator; a stator; a permanent magnet inserted into a magnet accommodating hole; and a slit formed on a radially outer side of the magnet accommodating hole. A space portion is ensured between a radially outer surface of the permanent magnet and a rotator core in each region opposed to the slit. The permanent magnet is apart from the rotator core via the space portion in the each region opposed to the slit.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: July 17, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiko Baba, Koji Yabe, Masahiro Nigo, Tomoaki Oikawa