Patents Examined by Alex W. Mok
  • Patent number: 10468924
    Abstract: A rotor for a flux-barrier-type reluctance motor having a plurality of poles formed in a circumferential direction includes a plurality of slits provided for each pole, a permanent magnet partially inserted into the slits in such a manner that magnetic poles of the permanent magnet are directed substantially orthogonal to the slit, a slit for a movable element disposed radially inside the permanent magnet disposed at an innermost position in a radial direction, and a movable element made of a magnetic material and inserted into the cavity, the movable element being capable of moving in the slit for the movable element in the circumferential direction. A radially inner side of the innermost slit into which the permanent magnet is inserted and radially outer and inner sides of both the slit for the movable element and the movable element are in a concentric circular-arc shape.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: November 5, 2019
    Inventor: Takanori Yokochi
  • Patent number: 10468939
    Abstract: A liquid coolant sleeve fixing device for fixing the cylindrical liquid coolant sleeve in a radially interior part of a housing is disclosed. The coolant sleeve fixing device includes a bolt for fixing the liquid coolant sleeve and the housing, and an axial installation hole disposed on an axial side of the housing and used for installing the bolt. The fixing device also includes a recess disposed on an axial side of the liquid coolant sleeve, and a press plate of a shape which fits the recess, the quantity of the press plate being the same as the quantity of the recess. A radially inner side part of the press plate presses against the interior of the recess. The press plate is fixed to the housing by means of the bolt and installation hole, thereby fixing the liquid coolant sleeve in the radially interior part of the housing.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: November 5, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Shanguo Fang, Markus Wagenbret, Zhenhua Wu
  • Patent number: 10468936
    Abstract: A transport apparatus including a housing, a drive mounted to the housing, and at least one transport arm connected to the drive where the drive includes at least one rotor having at least one salient pole of magnetic permeable material and disposed in an isolated environment, at least one stator having at least one salient pole with corresponding coil units and disposed outside the isolated environment, where the at least one salient pole of the at least one stator and the at least one salient pole of the rotor form a closed magnetic flux circuit between the at least one rotor and the at least one stator, and at least one seal configured to isolate the isolated environment where the at least one seal is integral to the at least one stator.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 5, 2019
    Inventors: Jairo T. Moura, Ulysses Gilchrist, Robert T. Caveney
  • Patent number: 10461620
    Abstract: An X-Y movable stage with rotation is described. A fixed base comprises a magnetic bed with a checkerboard pattern of alternating north and south poles on a grid. A movable puck moves and rotates on the base. The puck comprises three or more nodes where each node may be energized for a north, south, or off magnetic field, with varying field strength. The nodes are arranged on an X-Y motion grid on the puck that are rotated 45° from the magnetic base grid. A first set of node locations on the puck may be each centered between a pair of opposite poles on the magnetic base. One arrangement of nodes is at the corners of a rectangle aligned with the motion grid. An optional second set of one node locations on the puck may be each centered between a pair of opposite poles on the magnetic base, when the first set of nodes is aligned over poles. Methods of mapping node locations, controllers, and applications are described.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 29, 2019
    Inventor: Kim Rubin
  • Patent number: 10454356
    Abstract: The invention relates to a drive system (1) with electromagnetic energy transfer. The system (1) comprises a track (3) comprising a plurality of stators (4), each stator (4) having at least one winding adapted to generate a magnetic field having a fundamental harmonic (8) and at least one further harmonic (9) when fed with an varying current, and a movable element (2) comprising a primary magnetic element (5) adapted to receive said fundamental harmonic (8) to drive said movable element (2) along said track. The system (1) is characterized in that said movable element (2) further comprises a secondary magnetic element (6a-6c) adapted to receive said at least one further harmonic (9) to generate power onboard of said movable element (2). The invention also relates to a linear fractional slot synchronous machine and a rotational synchronous machine.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: October 22, 2019
    Inventors: Davide Borghi, Stefano Flore, Claudio Bianchini, Matteo Davoli
  • Patent number: 10439459
    Abstract: A rotor core of a rotor includes: a plurality of protrusions formed on at least a step-skew boundary side; and a tubular non-magnetic ring mounted on outer peripheries of a plurality of permanent magnets so as to cover the boundary. The non-magnetic ring includes a plurality of inner diameter bulging portions. Each of the permanent magnets and each of the protrusions are brought into abutment against the corresponding inner diameter bulging portions.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: October 8, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toyoaki Udo, Satoru Akutsu, Shusuke Hori, Takanori Ichikawa, Yuji Takizawa
  • Patent number: 10429104
    Abstract: System and method for generating and storing electricity by electromagnetic induction using a magnetic field modulated by the formation, dissipation, and movement of vortices produced by a vortex material such as a type II superconductor and further including a vortex flux generator in cryostat and a refrigerant compartment having bi-directionally thermal transfer to the vortex flux generator are described. Magnetic field modulation occurs at the microscopic level, facilitating the production of high frequency electric power. Generator inductors are manufactured using microelectronic fabrication, in at least one dimension corresponding to the spacing of vortices. The vortex material fabrication method establishes the alignment of vortices and generator coils, permitting the electromagnetic induction of energy from many vortices into many coils simultaneously as a cumulative output of electricity. A thermoelectric cycle is used to convert heat energy into electricity.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: October 1, 2019
    Assignee: Silicon Turbine Systems, Inc.
    Inventor: Richard Adams
  • Patent number: 10418927
    Abstract: A system comprises an input member, an output member, a magnetic gear connecting the input member to the output member and control means arranged to control the flow of power from the input member to the output member. The magnetic gear comprises a first set of magnetic poles, a second set of magnetic poles, and a set of pole pieces arranged to modulate the magnetic field between the first set of magnetic poles and the second set of magnetic poles. The control means comprises means for reducing the transmission of torque pulsation and/or oscillation from the input member to the output member.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: September 17, 2019
    Assignee: Magnomatics Limited
    Inventors: Stuart Calverley, Jeff Birchall
  • Patent number: 10411569
    Abstract: A rotor manufacturing method for manufacturing a rotor including a rotor core, the rotor core having a permanent magnet mounted thereon throughout a circumferential direction, includes covering an outer circumference of the rotor core with a tubular rotor cover; and forming an angular portion conforming to an outer shape of the permanent magnet by pressing an open end of the rotor cover radially inward with use of a pressing member, the open end of the rotor cover axially projecting from an end of the rotor core before being pressed.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: September 10, 2019
    Assignees: KYB Corporation, TOP Co., Ltd.
    Inventors: Takayuki Kawaguchi, Tomomi Hayase, Ryuichi Kaneko, Yoshiteru Kurokawa, Hiroyuki Miyoshi, Akihiro Kawabata
  • Patent number: 10411554
    Abstract: To provide a motor with a wiring board achieving simplification of work and suitable for automation of the work. A motor provided herein includes a wiring board attached to a stator with multiple wound coils. The wiring board comprises: a wiring settlement member where ends of the multiple coils are housed in their settled positions; and a circuit board with multiple terminals provided at positions corresponding to positions of the wiring settlement member where the coils are housed. The ends of the coils are connected under pressure to the terminals to form connections between the coils and the terminals by attaching the circuit board to the wiring settlement member.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: September 10, 2019
    Inventors: Koutarou Yamada, Takeshi Tamaki, Kouji Kobayashi
  • Patent number: 10404150
    Abstract: An energy harvesting device includes a core portion, a first magnet, and a second magnet. The core portion has an electrical output and can move from a first disposition to a second disposition. The first magnet is disposed to provide first magnetic field lines therethrough in a first direction. The second magnet is disposed to provide second magnetic field lines therethrough in a second direction. The core portion, the first magnet and the second magnet are arranged such that externally applied vibrations in a third direction normal to the first direction cause the core portion to oscillate between the first disposition and the second disposition.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: September 3, 2019
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Paul D. Swanson, Brian B. Dick, Maxwell Kerber, Alex G. Phipps
  • Patent number: 10389203
    Abstract: A vibration motor assembly includes a vibration motor, an end cap having electrical contacts configured for supplying electrical power to the vibration motor, the end cap having a first connecting structure connecting the end cap to the vibration motor, and a capsule connected to the end cap to define a cavity. The vibration motor further has a shaft, and an eccentric mass is connected to the shaft. The vibration motor is configured to use electrical power to rotate the shaft and the eccentric mass to create a vibration effect. The end cap further has a second connecting structure connecting the capsule to the end cap. The vibration motor and eccentric mass are enclosed by the so-connected end cap and capsule, so as to enable the vibration motor assembly to withstand fabrication conditions.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 20, 2019
    Assignee: NIKE, Inc.
    Inventor: Austin Orand
  • Patent number: 10389215
    Abstract: A motor including a rotor, and a stator having a plurality of coils wound around slots, wherein at least any one of the coils includes a single aluminum wire, a single copper wire joined to the aluminum wire, a stranded wire (lead wire) joined to the copper wire, a cold-pressure-welded joint portion (joint portion) joined between the aluminum wire and the copper wire by cold pressure welding, and a non-pressure welded joint portion (joint portion) provided between the copper wire and the stranded wire (lead wire). A burr covered by an insulation member (insulation tube) is provided in the cold-pressure-welded joint portion (joint portion). A thickness of the insulation member (insulation tube) is larger than a height of the burr.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 20, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koji Yabe, Kazuhiko Baba, Takahiro Tsutsumi, Tomoaki Oikawa
  • Patent number: 10381896
    Abstract: A cooling device for a vehicle, having an inner housing with an inner cooling wall, and an outer housing which surrounds the inner housing, is spaced apart via a cooling gap and has an outer cooling wall. A cooling volume for passage of a cooling fluid is formed between the inner cooling wall and the outer cooling wall. The inner cooling wall and/or the outer cooling wall furthermore have channel walls for dividing the cooling volume and guiding the cooling fluid. At least one clamping device is arranged around the circumference of a circumferential wall of the outer housing for introducing a deformation force into the outer housing in order to reduce the cooling gap by deforming the outer housing.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: August 13, 2019
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Holger Hinrich
  • Patent number: 10357346
    Abstract: An actuator (52) for a personal care appliance (50) comprises a housing (54), a spindle (64), a tangential actuator portion (70), and an axial actuator portion (72). The tangential actuator portion (70) includes first and second magnet and pole assemblies (76,78) that define a tangential spring function of the tangential actuator portion. The axial actuator portion (72) includes third and fourth magnet and pole assemblies (90,92) that define an axial spring function of the axial actuator portion. At least one of (i) the first and second magnet and pole assemblies (76,78) of the tangential actuator portion (70) and (ii) third and fourth magnet and pole assemblies (90,92) of the axial actuator portion are configured to enhance a corresponding spring function of the axial actuator portion or tangential actuator portion, respectively.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: July 23, 2019
    Inventors: Pieter Johannes Bax, Franciscus Jozef Bosman
  • Patent number: 10361601
    Abstract: Disclosed herein is a rotor assembly, including a cylindrical housing coupled to an outer circumferential surface of a rotor body and configured to house a coil turn therein, a supporting unit disposed in the housing and configured to prevent the coil turn from being pushed in an axial direction of a rotor, and a vane ring coupled to one end of the housing and provided with blades guiding cooling fluid to the coil turn. The rotor assembly may include: coil turns each of which is formed by stacking conductors in a multilayer structure and includes a linear part interposed between teeth, and a curved part extending from the linear part and disposed on an outer surface of a spindle; first supporting blocks which are inserted into the curved part and disposed between the conductors; and a second supporting block which is disposed between the first supporting blocks.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 23, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Kye Ha Hwang
  • Patent number: 10348172
    Abstract: A motor including a sealed rotor with at least one salient rotor pole and a stator comprising at least one salient stator pole having an excitation winding associated therewith and interfacing with the at least one salient rotor pole to effect an axial flux circuit between the at least one salient stator pole and the at least one salient rotor pole.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: July 9, 2019
    Assignee: Brooks Automation, Inc.
    Inventors: Jairo T. Moura, Jayaraman Krishnasamy
  • Patent number: 10348142
    Abstract: A stator of an electric machine has an annular stator body with a multiplicity of winding slots. The winding slots protrude into the stator body in the manner of a pocket from a ring interior. Respective windings are disposed in the winding slots and the slots are sealed toward the ring interior with slot-liner elements. The slot-liner elements of all the winding slots are combined to form a slot-liner cage. The slot-liner cage is formed with circumferential cage rings at the ends of the slot-liner elements. The cage rings have an interruption at a circumferential point. The circumferential point has a self-retaining lock geometry which prevents an autonomous opening of two intermeshing ring ends of the cage rings.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 9, 2019
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Mike Fippl, Uwe Riemenschneider, Michael Schnier
  • Patent number: 10328461
    Abstract: The present disclosure relates to a vibration motor, comprising a housing, a vibrator, an elastic member, a first block and a second block; the elastic member comprises first elastic member and second elastic member facing toward each other and each comprises a first fixing portion, two extending portions and two second fixing portions, the first fixing portion is fixed on the first surface, the two extending portion extend from the first fixing portion along two opposite directions and surrounds the second surface, the two second fixing portions are fixed on the side wall away from the first fixing portion; the first block is on a side of the first fixing portion corresponding to the side wall, the second block is on the side wall, faces towards the first block and is spaced from the first block. The second block is adjacent to the second fixing portion and is between the two second fixing portions.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: June 25, 2019
    Inventors: Hongfu Xu, Fanghua Ling, Wenli Wang
  • Patent number: 10320271
    Abstract: An electric machine 100 is provided, which includes: a stator 10 including a concentrated-winding armature winding 14; an inner rotor 30; and an outer rotor 20, the outer rotor 20 having a plurality of circumferentially spaced magnetic path forming elements 21, the inner rotor 30 having a plurality of rotor teeth 32, which are arranged side by side in the circumferential direction, wound by induction coils 34 and field coils 35; and a rectifier circuit 36 configured to rectify induced current generated by each of induction coils to DC current.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 11, 2019
    Inventors: Yoshihisa Kubota, Masahiro Aoyama