Patents Examined by Thanh Lam
  • Patent number: 10320255
    Abstract: A wave winding for a stator of an electric machine is configured to be placed in a series of stator grooves located along a periphery of the machine to increase power and efficiency of the machine by avoiding losses, particularly during upper rotational speed range operation. The wave winding has at least two conductors for one respective phase of the machine. The conductors are interconnected in parallel and/or series and can be disposed at a given winding pitch in a number of at least two successive stator grooves of each magnetic pole and each phase of the machine in a sequence predefined for each phase and for one respective magnetic pole along the periphery of the machine. The predefined sequence at least of the conductors interconnected in parallel is transposed by at least one groove skip in at least one position along the periphery of the machine.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: June 11, 2019
    Assignee: Volkswagen AG
    Inventors: Winfried Schulz, Hauke Einfeld
  • Patent number: 10320259
    Abstract: A method of manufacturing a motor, which begins with robotically positioning a flexible insulating sleeve over a first motor sub-assembly to produce a second motor sub-assembly. The first motor sub-assembly includes a motor assembly and an end-cap. The motor assembly includes a stator, a rotor, and wiring connected to the stator. The end-cap includes an electrical fitting for feeding the wiring externally of the motor. The method continues with robotically positioning a flexible enclosure, that includes a formed housing section and a connecting section, loosely over the second motor sub-assembly. The method continues with tightening the connecting section until the formed housing section tightly fits over the second sub-assembly compressing the flexible insulating sleeve to produce an insulating seal.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 11, 2019
    Assignee: Bison Gear & Engineering Corp.
    Inventors: Matthew Sherman Hanson, George Thomas, Gary Dorough, Jeff Hamaker, Edmund Peter Henke, Jr., Sanel Tatar
  • Patent number: 10312754
    Abstract: A rotor structure for an interior permanent magnet electric motor comprising: A laminated rotor core which comprises stack of thin plates, the stack having a first end and a second end, each plate in the stack including at least one window which is aligned with a corresponding window of an adjacent plate so that the window together form an elongate pocket that extends along at least a part of the length of the core starting at a first end of the core, and at least one permanent magnet located in the pocket. At least one plate at the first end of the stack includes an integral retention feature which projects away from a main body of the plate to project above the window in the plate and which engages the first end of the magnet thereby to retain the magnet in the pocket.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: June 4, 2019
    Assignee: TRW Limited
    Inventors: John Leslie Gorton, David Julian Moule, Gary Webb
  • Patent number: 10312787
    Abstract: A transport system and a system for moving permanent-magnet-excited transport bodies by an inductively excited magnetic field includes induction coils, a movably supported first reluctance element, and an actuator. The induction coils are configured for a current to flow through the induction coils in order to drive the transport bodies in a plane without contact. The actuator is configured to bring the first reluctance element from a first position into a second position. The permanent magnetic field of a transport body located over the first reluctance element experiences a lower magnetic resistance in a magnetic circuit through the first reluctance element in the second position than in the first position.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 4, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Anton Paweletz, Markus Hanisch, Sebastian Gran, Joshua Windsheimer, Heike Raatz
  • Patent number: 10301757
    Abstract: A drive motor for a drum washing machine including: a stator includes a stator core, a bobbin of in an insulating material and that is wrapped on an outer surface of the stator core, and a coil that is wound around the outer surface of the bobbin; a rotor that is arranged with a predetermined air gap from the stator, and whose one end is connected to a rotating shaft fixed on a rear surface of a drum; and a cover member to which the other end of the rotating shaft is rotatably supported, and that is fixed to a rear surface of the tub, in which the stator core is mounted. The drive motor can shorten a manufacturing process by removing a step of assembling the stator in the tub, and the bobbin is integrally formed with a buffer portion disposed between the stator core and the cover member.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: May 28, 2019
    Assignee: AMOTECH CO., LTD.
    Inventor: Byung Soo Kim
  • Patent number: 10291092
    Abstract: The present invention relates to a motor for a vehicle and a rotor applied thereto, wherein the rotor includes a first rotor core having a plurality of magnet contact surfaces in a first direction that is a longitudinal direction, second rotor cores positioned to face the plurality of magnet contact surfaces, a plurality of magnets positioned between the first rotor core and the second rotor cores, and a partition unit disposed between the magnets adjacent to each other and configured to fix the second rotor cores and the magnets.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: May 14, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Yong Chul Kim
  • Patent number: 10291175
    Abstract: A rotary electric machine system includes: a rotary electric machine; a lubrication mechanism configured to supply lubricating oil to a bearing of the rotary electric machine; and a control unit configured to control the supply of lubricating oil from the lubrication mechanism. The control unit is configured to acquire an operation status of the rotary electric machine and determine whether there is a possibility of occurrence of electrolytic corrosion in the bearing. The control unit is configured to, when it is determined that there is a possibility of occurrence of electrolytic corrosion, increase the supply of lubricating oil to the bearing by controlling the lubrication mechanism as compared to the supply of lubricating oil to the bearing at a time when it is not determined that there is a possibility of occurrence of electrolytic corrosion.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: May 14, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomoya Matsubara
  • Patent number: 10284055
    Abstract: A Hall IC of an actuator calculates a relative angle by using magnetic flux densities in two directions, and corrects a linearity error in the relative angle by using correction values at correction points and a function to calculating an interpolated correction value between correction points, the correction values and the function being stored in a storage. The storage stores, as correction values at outermost correction points in a relative angle range, correction values L? and L? causing linearity errors which are outermost ones of plural extremums to be equal to or less than linearity errors which are other ones of the plural extremums each of which is located inwardly next to the outermost extremum, the plural extremums being exhibited by the linearity error in the relative angle which is corrected by using an interpolated correction value calculated from the function which uses the correction values as parameters.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: May 7, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Takashi Goto
  • Patent number: 10277100
    Abstract: A stator core and a rotor core are provided. The stator core includes field windings receiving a direct current, and armature windings receiving an alternating current. Permanent magnets, each housed in one of the slots together with ones of the field windings, and in contact with the ones of the field windings, are provided. The field windings are provided on both of inner and outer circumferential sides of the permanent magnets.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 30, 2019
    Assignees: Daikin Industries, Ltd., Nagoya Institute of Technology
    Inventors: Yoshinari Asano, Takashi Kosaka
  • Patent number: 10277092
    Abstract: A linear actuator system comprising a linear actuator and at least one box with an openable cover. The box comprises a horizontal hinge pin in each side as well as a track in each side, which the respective hinge pins reach into, and where the track on a first run is horizontal and led out to a free edge such that the cover can be placed on the box in a horizontal movement and that the track has a second run in continuation of the first run, and where the second run has a sloping course, which extends down towards the bottom of the box such that the respective hinge pins when the cover is closed are led into the second sloping course of the track. The cover can thus be removed from the box, in case this would be desired, alternatively the cover can remain on the box and be opened by rotating around the horizontal hinge pins. Due to the design of the tracks, which the hinge pins reach into, the cover can be placed on and removed from the box in a horizontal position.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: April 30, 2019
    Assignee: LINAK A/S
    Inventor: Rolf Jørgensen
  • Patent number: 10270305
    Abstract: A motor-generator includes a stator disposed along a centerline including a stator pole, a first stator winding and a second stator winding, wherein the first stator winding is wound on the stator pole and the second stator winding is wound on the stator pole, and at least one rotor axially disposed from the stator along the centerline.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 23, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jacek F. Gieras, Gregory I. Rozman
  • Patent number: 10267359
    Abstract: An apparatus is provided including a shaft, wherein the shaft is stationary. A rotatable component is configured to rotate with respect to the shaft. A fluid is operable to flow between the shaft and the rotatable component. A limiter is at a first axial end of the shaft, and a cup is at a second axial end of the shaft. An axially extending grooved region is between the limiter and the rotatable component.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: April 23, 2019
    Assignee: Seagate Technology LLC
    Inventors: Alan Lyndon Grantz, Lynn Bich-Quy Le, Klaus Diete Kloeppel
  • Patent number: 10270313
    Abstract: Linear actuator system comprising a linear actuator and at least one box, such as a control box containing a control and possibly also a mains-based power supply or a battery box with a rechargeable battery pack. The linear actuator system further comprises a fastening means for the box, wherein the fastening means is constituted by an elongated item with a rectangular outline and a square cross-section. The box has a groove for receiving the fastening means. The fastening means and the groove are constituted with mutually interacting releasable locking connections. The fastening means can be designed as an independent item that can be fastened where the box is to be placed. The fastening means can also be used to interconnect two or more boxes by fastening the fastening means to a box. Alternatively, the fastening means can be formed as an integral part of the box.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: April 23, 2019
    Assignee: Linak A/S
    Inventor: Rolf Jørgensen
  • Patent number: 10270307
    Abstract: A front housing of an electric motor includes an air discharging member for discharging air toward a rotary shaft. The front housing includes an annular first air chamber that is formed in the air discharging member, and an annular second air chamber that is formed outside the first air chamber. The front housing includes an air supply path for supplying compressed air to the second air chamber, and a connection flow passage for causing the first air chamber to communicate with the second air chamber. The connection flow passage is formed at a position other than a position of the air supply path in the circumferential direction of the housing.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: April 23, 2019
    Assignee: FANUC CORPORATION
    Inventor: Yohei Kamiya
  • Patent number: 10270326
    Abstract: The present invention is capable of increasing the thinness of a linear vibration motor equipped with a fixed shaft. The linear vibration motor is equipped with: a frame; one fixed shaft extending in one axial direction and affixed to the frame; a drive unit for driving a magnet in the one axial direction, and equipped with a coil affixed to the frame and the magnet, which is positioned so as to be parallel to the fixed shaft; a needle which is slidably supported in the one direction by the fixed shaft, and is equipped with the magnet and a spindle part connected to the magnet; and an elastic member for imparting an elastic force to the needle in opposition to the driving force of the drive unit, and positioned so as not to be coaxial with the fixed shaft.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: April 23, 2019
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Yoshinori Katada
  • Patent number: 10263491
    Abstract: The invention provides a stator for an electric motor comprising a plurality of teeth separated by slots, and comprising conductive material provided in the slots between two or more of the teeth.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 16, 2019
    Assignee: GOODRICH ACTUATION SYSTEMS LIMITED
    Inventor: Maamar Benarous
  • Patent number: 10259310
    Abstract: A vehicle drive device that includes a body case that accommodates at least the rotary electric machine; an inverter case joined to the body case; and an inverter case cover joined to the inverter case; wherein an inverter housing that accommodates the inverter device is formed in a space enclosed by at least the inverter case; wherein a connection terminal electrically connecting the rotary electric machine and the inverter device is disposed in the inverter housing; wherein the case outer wall is formed by a first outer wall, a second outer wall, and the inverter case cover, the first outer wall being an outer wall of the body case, the second outer wall being an outer wall of the inverter case; and wherein a supply port and a discharge port for liquid refrigerant for cooling the inverter device are formed on the second outer wall.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 16, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Hiromichi Agata, Tatsuyuki Uechi, Tomoyuki Suzuki
  • Patent number: 10252295
    Abstract: A linear actuator may include a movable element including a cylindrical permanent magnet; a stationary element including a coil bobbin that surrounds the permanent magnet at an outside in a radial direction; a spring member connected to the movable element and the coil bobbin, and supporting the movable element to be movable in an axial direction in relation to the coil bobbin; a coil wound around the coil bobbin, for configuring a magnetic drive mechanism together with the permanent magnet, the magnetic drive mechanism being structured to drive the movable element in the axial direction; and a gel damper member being sandwiched between the stationary element and the movable element in the axial direction.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: April 9, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Takeda, Hiroshi Kitahara, Takeshi Sue
  • Patent number: 10256680
    Abstract: Disclosed are various embodiments for a new and improved electrical motor/generator, specifically a motor/generator comprising: a plurality of coils radially positioned about a coil assembly, a plurality of magnetic tunnels forming a relative rotational path for the coil assembly, wherein the all of plurality of magnets forming each magnetic tunnel have like poles facing inward toward the interior of the magnetic tunnel or facing outward away from the interior of the magnetic tunnel such that each magnetic field of any magnetic tunnel is of an opposite polarity to the magnetic field of an adjacent magnetic tunnel.
    Type: Grant
    Filed: July 23, 2017
    Date of Patent: April 9, 2019
    Assignee: Linear Labs, LLC
    Inventor: Fred E. Hunstable
  • Patent number: 10256695
    Abstract: A linear actuator system comprising a linear actuator having a housing and an outer tube, which with a rear end is secured to a side of the housing at a front end thereof. The outer tube surrounds an electric motor driven spindle unit and an activation element. The linear actuator system further comprises a control box having a control, where the control box is arranged in the angle between the housing and the outer tube on the linear actuator. The control box is fastened with a mounting bracket to the outer tube on the linear actuator. The mounting bracket comprises a tubular portion, whereby it can be pushed in over the outer tube and the mounting bracket and the control box are also designed with interacting fastening means for fastening the control box to the mounting bracket. The tubular portion of the mounting bracket has an axially extending slit and the interacting fastening means between the mounting bracket and the control box are constituted on both sides of the slit.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: April 9, 2019
    Assignee: LINAK A/S
    Inventor: Rolf Jørgensen