Disc Patents (Class 310/268)
  • Patent number: 10879747
    Abstract: Disclosed is an apparatus for transmitting wireless power including: a plurality of coils; a position-sensing circuit that determines a position of an electronic device charged by the apparatus; and a control circuit determines at least one coil corresponding to the determined position of the electronic device from among the plurality of coils and transmit wireless charging power through one coil selected from the at least one determined coil. Other embodiments can be applied.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: December 29, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Chul Hong, Kwang-Seob Kim, Dong-Zo Kim, Ji-Won Kim, Keum-Su Song, Min-Cheol Ha, Se-Hyun Cho
  • Patent number: 10866121
    Abstract: A rotational angle sensor includes a stator element and a rotor element. The stator element has a stator transmitting coil, a stator circuit board with first and second planes, and at least two identically configured stator receiving coils arranged within the stator transmitting coil on the stator circuit board angularly offset from each other. The rotor element is mounted rotatably about a rotational axis relative to the stator element. The stator transmitting coil is inductively coupled to the stator receiving coils via the rotor element such that the inductive coupling is configured with reference to a rotational angle between the stator element and the rotor element so that the stator transmitting coil induces at least two angle-dependent alternating voltages in the stator receiving coils. The stator transmitting coil has coil conducting tracks positioned on the first and second planes of the stator circuit board.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: December 15, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Fabian Utermoehlen, Andreas Merz
  • Patent number: 10855129
    Abstract: A printed circuit board (PCB) includes a first plurality of conductive paths having first ends at an inner radius of the PCB and second ends at an outer radius of the PCB. The PCB further includes a second plurality of conductive paths having first ends at an outer radius of the PCB and second ends at an inner radius of the PCB. The PCB further includes a first plurality of conductive vias that pass through the PCB at the outer radius of the PCB and couple second ends of the first plurality of conductive paths to first ends of the second plurality of conductive paths. The PCB further includes a second plurality of conductive vias that pass through the PCB at the inner radius of the PCB and electrically couple second ends of the second plurality of conductive paths to first ends of the first plurality of conductive paths.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: December 1, 2020
    Assignee: Waymo LLC
    Inventors: Samuel William Lenius, Paul Karplus, Alexander Danilo Zbrozek
  • Patent number: 10778071
    Abstract: Provided is a stacking-type stator including: a multi-layered substrate; coil patterns formed in a helical shape to form a plurality of turns on respective substrates of the multi-layered substrate and interconnected through conductive throughholes; a Hall sensor disposed in the multi-layered substrate and disposed at a position deviated from an interface of a magnetic pole of a rotor; and a dead point prevention yoke for setting the position of the rotor such that the Hall sensor is positioned at a position deviated from the interface of the magnetic pole of the rotor. The helical shape coil patterns include: radial direction pattern portions each disposed along a radial direction to generate a torque to rotate the rotor; and inner and outer connection pattern portions that interconnect the radial direction pattern portions and the coil patterns form a stator coil for a single phase motor.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: September 15, 2020
    Assignee: AMOTECH CO., LTD.
    Inventors: Byung Soo Kim, Jin Gwan Kim, Hong Geun Lee
  • Patent number: 10749409
    Abstract: A motor includes a stator, a rotor, and a first bearing. A housing of the stator has a top wall, a bottom wall opposite, a side wall and a first opening in the top wall. A rotating shaft of the rotor has a first magnetic unit having a first outer surface. The first outer surface includes first and second magnetic pole surfaces alternately arranged. The first and second magnetic pole surfaces have different magnetic poles. The first bearing having a first groove is disposed in the first opening. The first magnetic unit is located in the first groove having a first inner surface facing the first outer surface. The first inner surface includes third and fourth magnetic pole surfaces alternately arranged. The third and fourth magnetic pole surfaces have different magnetic pole. The first and third as well as second and fourth magnetic pole surfaces have the same magnetic poles.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 18, 2020
    Inventor: Sheng-Lian Lin
  • Patent number: 10731627
    Abstract: The invention is a generator that will recharge its internal storage from as low as a five mile-per-hour wind without typical speed multiplying methods such as gears and pulleys. The invention creates alternating currents from rotating magnets by aligning the polarity of each magnet face in the same direction and wiring opposing sets of coils in series as a single phase. These series-connected sets are wired out-of-phase with each other to produce alternating currents. When mounted in a breezy location, the invention will silently provide reliable and consistent energy to power its internal devices.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: August 4, 2020
    Inventors: Timm A Vanderelli, Rodney A Carter
  • Patent number: 10637338
    Abstract: A rotary generator comprising: at least one magnetic annulus pair comprising a first magnetic annulus and a second magnetic annulus with a gap therebetween; a coil annulus in the gap; the first and second magnetic annuli and the coil annulus having a common axis; the first and second magnetic annuli of the at least one magnetic annulus pair each having: a sequence of principle permanent magnets spaced around the common axis with alternating north and south poles facing the gap, corresponding principle permanent magnets of the first and second magnetic annuli of a magnetic annulus pair, with unlike poles facing the gap, facing each other across the gap such that lines of magnetic flux cross the gap between the corresponding principle permanent magnets, and a sequence of intermediate permanent magnets, each of the intermediate permanent magnets being positioned between two of the principle permanent magnets, each intermediate permanent magnet having adjacent the gap a north pole facing a side of the principle p
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: April 28, 2020
    Assignee: TIME TO ACT LIMITED
    Inventor: Hugh-Peter Granville Kelly
  • Patent number: 10634905
    Abstract: A distance between the rotary shaft and the pressurizing position of the polygon mirror by the mirror fixing spring is shorter than a distance between the rotary shaft and a position at which the polygon mirror comes into contact with the seat surface. When a difference between an outer radius and an inner radius of the polygon mirror is defined as A, and a difference between the distance between the rotary shaft and the pressurizing position of the polygon mirror by the mirror fixing spring and the distance between the rotary shaft and the position at which the polygon mirror comes into contact with the seat surface is defined as C, the relationship of 0<C?A/4 is established. When a distance, in a direction orthogonal to the rotary shaft, between a position at which the inner diameter side of the polygon mirror comes into contact with the sleeve and the position of the seat surface is defined as E, the relationship of A/3?E?A/2 is established.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: April 28, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Yasushi Fukui, Masahiko Anko, Koji Hiraguchi
  • Patent number: 10630157
    Abstract: An axial flux machine (100) is provided, in which the rotor (104) is cooled via air cooling, provided by impeller blades (140) located on the opposite side of the rotor (104) to the stator (102). An impeller cover (142) covers the impeller blades (140) such that air channels are defined between adjacent blades. The air channels have an air inlet (146) at an inner radial portion of the rotor (104), and an air outlet (146) at the outer radial extremity of the impeller blades (140). As the rotor (104) turns, the air is drawn through the air channel from the air inlet (144) to the air outlet (146). The motor (100) may be enclosed within a housing (120), in which case air ducting (150,152) may be used to guide air to the air inlet (144), and from the air outlet (146) to the outside of the housing (120).
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: April 21, 2020
    Assignee: YASA LIMITED
    Inventor: Christopher Thomas McCaw
  • Patent number: 10576501
    Abstract: There is provided a vibration generation device superior in responsivity compared to the related art. The vibration generation device includes a stator, a rotor provided to the stator so as to be able to rotate around the central axis, and having a weight having a gravity center at a position shifted from the central axis, and an air resistance reduction part provided to the weight, and reducing the air resistance to the weight when the rotor rotates. The weight is formed to have a semicircular shape viewed from the axial direction, and the air resistance reduction part has an arcuate part adapted to connect an end edge on the upstream side in the rotational direction of the rotor in the outer circumferential surface of the weight and an end edge on the downstream side in the rotational direction to each other so as to form a circular arc shape.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 3, 2020
    Assignee: SEIKO INSTRUMENTS INC.
    Inventors: Akihiro Iino, Masao Kasuga
  • Patent number: 10570924
    Abstract: Embodiments provide an integrated motor-compressor assembly including a rotating impeller to compress a fluid passing therethrough, and diffuser vanes radially spaced from the impeller, each of the diffuser vanes including a stator winding therearound, the stator windings being supplied with current to generate sufficient magnetic flux for rotating the impeller. Embodiments provide an integrated motor-compressor assembly including a volute casing housing a rotating impeller to compress a fluid passing therethrough, a stator fixedly positioned in the volute casing proximate to the impeller, the stator including stator poles axially spaced from the impeller, each of the stator poles including a stator winding, the stator windings being supplied with current to generate sufficient axial magnetic flux for rotating the impeller.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: February 25, 2020
    Assignee: The University of Akron
    Inventors: Yilmaz Sozer, Jerald K. Cohen, Iftekhar Hasan, Tausif Husain
  • Patent number: 10545033
    Abstract: A multi-turn detector is configured to detect an amount of multiple turns of an input shaft using a plurality of resolvers. Each resolver includes a rotor portion and a stator portion. The rotor portion has a rotor core composed of a magnetic flux modulating component. The rotor portion rotates in accordance with rotation of the input shaft at a reduction gear ratio that is different from that of a rotor portion of another resolver. The stator portion has an excitation winding that excites an ac magnetic flux in a direction of an axis of rotation of the rotor portion and two detection windings that output ac signals that are obtained by performing amplitude modulation in accordance with a rotation angle of the rotor portion. The excitation windings and the detection windings of the plurality of resolvers are formed by conductor traces in a common multi-layer printed circuit board.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 28, 2020
    Assignee: OKUMA CORPORATION
    Inventors: Yasukazu Hayashi, Koji Kitagawa, Yasunori Kawakami, Hiroaki Matsuura
  • Patent number: 10410998
    Abstract: A micro-LED module is disclosed. The micro-LED module includes: a micro-LED including a plurality of LED cells, each of which includes a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer; a submount substrate mounted with the micro-LED; a plurality of electrode pads formed on the micro-LED cells; a plurality of electrodes formed corresponding to the plurality of electrode pads on the submount substrate; a plurality of connection members through which the plurality of electrode pads are connected to the corresponding plurality of electrodes; and a gap fill layer formed in the gap between the micro-LED and the submount substrate and having a bonding strength to the micro-LED and the submount substrate.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: September 10, 2019
    Assignee: LUMENS CO., LTD.
    Inventors: Daewon Kim, Eunsung Shin, Myungji Moon, Hanbeet Chang, Yongpil Kim, Jaesoon Park
  • Patent number: 10326325
    Abstract: Disclosed are a rotor that is capable of more efficiently using magnetic flux from magnets and a motor including the same. The rotor includes a plurality of rotor cores, a plurality of magnets magnetized such that magnetic flux is formed in the circumferential direction, the magnets and the rotor cores being alternately arranged in the circumferential direction, a coupler connected to a shaft, and a rotor frame including a coupler base connected to the coupler, an extension base extending from the coupler base in the radial direction, and a rotary base extending from the extension base in the axial direction of the shaft for supporting the rotor cores and the magnets while surrounding the rotor cores and the magnets, wherein the coupler base, the extension base, and the rotary base are integrally formed by injection molding, and the rotor frame is coupled to the coupler, the rotor cores, and the magnets, and wherein the extension base is provided with crossing ribs that cross in the radial direction.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 18, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jangwon Lee, Seungsuk Oh, Heon Lee, Junho Ahn, Jaemin Kim, Dosun Kim, Hyounguk Nam
  • Patent number: 10256687
    Abstract: A rotor element configured for movement relative to a stator includes a backing member formed, at least in part, from a ferromagnetic material; a first magnetic pole having a first polarity; and a second magnetic pole having a second polarity, opposite the first polarity. The first magnetic pole and the second magnetic pole are coupled to a first surface of the backing member such that the second magnetic pole is disposed, relative to the first magnetic pole, at a distance defined in a direction of a width of the backing member. A thickness of the backing member is varied along the width of the backing member to form a plurality of alternating first portions and second portions. The first portions include protrusions extending from a second surface of the backing member, opposite the first surface, such that the first portions are thicker than the second portions.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: April 9, 2019
    Assignee: Boulder Wind Power, Inc.
    Inventor: Brian J. Sullivan
  • Patent number: 10250087
    Abstract: Disclosed is an asynchronous rotating electric machine in which none of the electrical windings is rotating, said machine having a homopolar compound structure. The machine comprises: a rotor including magnetic flux return parts; and a stator formed by a pair of armatures and a magnetic wedge connecting the armatures and providing the magnetic flux in the direction of the axis of rotation, an annular induction coil being supplied with alternating current and housed between the air gap and the wedge, and one or two armature coils being received by one or both of the armatures generating an alternating magnetic flux.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: April 2, 2019
    Assignee: Francecol Technology
    Inventors: François Bernot, Victor Bernaola, Jonh Edwin Morales Morales
  • Patent number: 10230321
    Abstract: A motor drive for driving a permanent magnet electrical machine includes an inverter having switches that are selectively operated to control current flow and terminal voltages in the electrical machine and a controller operatively connected to the inverter to control switching of the switches to control the current flow and terminal voltages in the electrical machine. The controller receives inputs regarding at least one of currents and voltages provided to the electrical machine on one or more phases, analyzes the voltages and currents to identify a fault in the electrical machine, and controls switching of the plurality of switches in the inverter to modify current flow and terminal voltages in the electrical machine based on the identified fault, with the modified current flow and terminal voltages in the electrical machine preventing demagnetization of the permanent magnets in the electrical machine.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: March 12, 2019
    Assignee: General Electric Company
    Inventors: Francesco Papini, Tiziana Bertoncelli, Mohamed Osama
  • Patent number: 10189051
    Abstract: In an exemplary preferred embodiment of the present disclosure, a vibration motor comprises a base portion, a magnet, and a vibrator portion, a cover portion, and an elastic member. The base portion expands perpendicular to a vertical center axis. The magnet is a single member which is fixed to an upper side of the base portion in the vertical direction. The vibrator portion is disposed around the magnet and vibrates in a vertical direction. The cover portion covers upper and side portions of the magnet and the vibrator portion. The cover portion is fixed to the base portion. The elastic member is disposed between an upper inner surface of the cover portion and a top portion of the vibrator portion. The vibrator portion includes a coil portion and a mass portion. The coil portion faces the magnet in a radial direction. The mass portion is fixed to the coil portion. The magnet includes a plurality of magnetic pole pairs and a non-magnetic portion.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: January 29, 2019
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Zendi Mori, Takayuki Takeuchi
  • Patent number: 10180818
    Abstract: A rotary fader apparatus includes a fader control knob that is directly attached to the rotor of a non-contact electrical motor. The apparatus may produce a fade effect based on the rotational position of the fader control knob and may be automated through signals to the motor. Such a rotary fader apparatus may be used, for example, in audio mixing applications to provide automated or manual rotary control of track fading. The motor may also be used to alter the feel of the movement of the fader control knob and/or provide tactile feedback in response to mixing parameters or signal properties.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: January 15, 2019
    Assignee: Sound Devices, LLC
    Inventors: Matt Anderson, Steven Popovich, Paul Isaacs, Jason McDonald
  • Patent number: 10148198
    Abstract: Systems and methods for generating a high voltage direct current using electric-field generators are disclosed. The electric field generator can comprise a rotor member, rotor poles coupled to the rotor member, stator poles corresponding to the rotor poles, and a dielectric medium positioned between the corresponding stator and rotor poles. The method can comprise applying an electric field between corresponding stator and rotor poles, receiving a mechanical energy input causing the rotor member to rotate, changing an alignment of the corresponding stator and rotor poles as a result of the rotation of the rotor member, increasing the voltage of the electric field between the corresponding stator and rotor poles as a result of the alignment change of the corresponding stator and rotor poles, and discharging the electric field to place a charge on a DC bus when the voltage of the electric field reaches a predetermined level.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: December 4, 2018
    Assignee: Electric Force Motors, Inc.
    Inventor: Weston Clute Johnson
  • Patent number: 10135310
    Abstract: An axial field rotary energy device can include a housing having coupling structures configured to mechanically couple the housing to a second housing of a second module. In addition, the housing can include electrical elements configured to electrically couple the housing to the second housing. A rotor can be rotatably mounted to the housing. The rotor can include an axis and a magnet. A stator can be mounted to the housing coaxially with the rotor. The stator can include a printed circuit board (PCB) having a PCB layer comprising a coil.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: November 20, 2018
    Assignee: INFINITUM ELECTRIC INC.
    Inventors: Bernhard L. Schuler, Rich Lee, Jorgen Rasmussen
  • Patent number: 10093062
    Abstract: The invention provides a building block for a mechanical construction. The invention further provides a bearing and a method of producing the building block. The building block provides a first printed material printed via an additive manufacturing process on or at least partially embedded in a second material. The first printed material is printed in a pattern configured and constructed for cooperating with a sensor for providing position information of the building block relative to the sensor. The sensor may be a magnetic sensor or an optical sensor. The first printed material may include magnetic particles. The method of producing the building block may include a step of adding the first printed material to the second material via the additive manufacturing process under the influence of a predefined magnetic field.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: October 9, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Alejandro Sanz, Stellario Barbera
  • Patent number: 10090731
    Abstract: An electrically driven eccentric weight industrial vibrator comprises a housing, a stator, a rotor, and at least one eccentric weight. The housing defines an internal chamber. The stator is positioned within the internal chamber of the housing and is fixed in rotation relative to the housing. The rotor encircles the stator and is rotationally connected to the stator and the housing in a manner such that the rotor is able to revolve around the stator within the internal chamber of the housing. The eccentric weight is mounted to the rotor in a manner such that the eccentric weight is able to revolve about the stator together with the rotor.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 2, 2018
    Assignee: MARTIN ENGINEERING COMPANY
    Inventor: Paul B. Harrison
  • Patent number: 10084352
    Abstract: A thin axial gap motor includes: a base, a circuit unit installed on the base; a stator module including at least one flat permeable frame and at least one winding, and the permeable frame having at least one support arm and an induced magnetic part connected to the at least one support arm, and the winding being wound around the support arm; a rotor module including a flat permanent magnet installed at the top of the induced magnetic parts and having an orthographic projection range corresponsive to the area of the induced magnetic part, and the at least one winding being disposed on an outer side of the permanent magnet; and a pivoting element installed between the base and the rotor module and including a bearing housing and a spindle plugged into the bearing housing for rotating the rotor module with respect to the base.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 25, 2018
    Assignee: COOLER MASTER CO., LTD.
    Inventors: Shui-Fa Tsai, Shih-Wei Huang, Chu-Yi Kuo
  • Patent number: 10018223
    Abstract: An axial flux electrical machine includes a housing having a center portion with a cylindrical wall, a stator assembly attached to the housing, a bearing assembly attached to the stator assembly, and a rotor assembly rotatably attached to the bearing assembly. A bearing mount system includes a bearing isolator that is attached to the wall of the housing, and a bearing cup that is attached to the bearing assembly and the bearing isolator.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 10, 2018
    Assignee: Regal Beloit Australia, PTY., LTD.
    Inventors: Matthew J. Turner, Greg Heins, Bin Chen, Dingcheng Wang, Byron J. Kennedy, Hani Chahine
  • Patent number: 10003230
    Abstract: An axial-gap motor-generator includes a case, a rotor, a stator, a cooling plate, an air inlet, an outlet, an airflow generating groove, and a radial groove. The rotor is rotatable around a rotating shaft. The stator is fixed to the case. The stator has a first distal end and a second distal end. The first distal end faces the rotating shaft. The cooling plate is in contact with the second distal end. The stator is disposed between the rotating shaft and the cooling plate. The first distance between the air inlet and the rotating shaft is smaller than a second distance between the air outlet and the rotating shaft. The airflow generating groove is provided between the case and the rotor. The radial groove is provided between the case and the cooling plate via which the airflow generation groove is connected to the air outlet.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: June 19, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Naoyuki Enjoji
  • Patent number: 9960660
    Abstract: A brushless DC motor includes a stator formed of a lamstack including a plurality of stacked laminations. The stator includes a plurality of radially extending core members and a circumferential wall. An intersection of each of the plurality of radially extending core members with the circumferential wall defines a flux null location, and a portion of the lamstack defines a first opening located at one of the flux null locations. The brushless DC motor includes a printed circuit board including a second opening and a grounding member including a first section received in the first opening of the stator and a second section received in the second opening of the printed circuit board to create a grounding path.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: May 1, 2018
    Assignee: Cooper-Standard Automotive Inc.
    Inventors: David Crowther, Jesse Whitfield
  • Patent number: 9960648
    Abstract: A high torque axial gap electric motor includes rotor and stator disks containing magnets fixed to their respective faces, where the magnets contain triangular ridges arranged in concentric circles. The face of each rotor magnet ridge is parallel to the face of a stator magnet ridge, creating an air gap with a cross-section that has a zigzag appearance. The preferred embodiment uses a three-phase motor design with multiple rotors and stators and permanent magnets.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: May 1, 2018
    Assignee: H&D Electrics, LLC
    Inventor: Catalin Tutunaru
  • Patent number: 9960655
    Abstract: A motor includes a base, a winding assembly and a rotor. The base includes a pivoting portion. The winding assembly includes a support. The support includes at least one coil supporting portion and a circuit supporting portion connected to the at least one coil supporting portion. A coil is arranged on each of the at least one coil supporting portion. A circuit is arranged on the circuit supporting portion and electrically connected to the coil or coils. A folding portion is arranged between the at least one coil supporting portion and the circuit supporting portion. The circuit supporting portion and the at least one coil supporting portion are folded and stacked together via the folding portion. The rotor is rotatably coupled to the pivoting portion of the base. Due to the arrangement of the folding portion, a radial width of the motor is efficiently reduced.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 1, 2018
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Guan-Ming Chen, Chang-Yu Lin, Li-Yang Lyu
  • Patent number: 9925889
    Abstract: An electric machine is provided for a dual voltage power system having a first energy storage system (HV-ESS) with a first nominal voltage and second energy storage system (LV-ESS with a second nominal voltage). The electric machine includes a rotor assembly having a rotor core configured to support permanent magnets spaced around the rotor core to define a number of rotor poles. The rotor core has multiple rotor slots arranged as at least one barrier layer at each of the rotor poles. Permanent magnets are disposed in the at least one barrier layer. A stator assembly surrounds the rotor assembly. The electric machine is configured to be operatively connected with the HV-ESS. The electric machines has at least one of a predetermined efficiency at rated power, a predetermined power density, a predetermined torque density, a predetermined peak power range, or a predetermined maximum speed of the electric machine.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 27, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Lei Hao, Chandra S. Namuduri, Thomas W. Nehl
  • Patent number: 9929526
    Abstract: There is provided a contact type power feeding apparatus in which, even if a brush Br disposed in a space between the axis body and the cylinder body that are disposed concentric with each other wears out as a result of sliding, contact can be surely secured between the brush and the axis body as well as the cylinder body, thereby efficiently causing electric current to flow between the two. A brush Br has first brush pieces each having an inner wall surface to make surface-contact with an outer peripheral surface of the axis body; and second brush pieces each having an outer wall surface to make a surface-contact with an inner peripheral surface of the cylinder body. The brush is constituted by alternately arranging, in the circumferential direction, the first brush pieces and the second brush pieces in a state of keeping them in surface-contact with each other.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: March 27, 2018
    Assignee: ULVAC, INC.
    Inventor: Shuuji Saitou
  • Patent number: 9859768
    Abstract: A vibration motor includes a weight that rotates about a shaft, and has a centroid position different from a central axis of the shaft, a case with a protrusion portion that extends from a lower end of the circumferential surface portion, and a lower end portion of the shaft is fixed to a stator portion. A base of the vibration motor includes a concave portion that is recessed from a radially outer side of the base to a radially inner side of the base at a position overlapping the protrusion portion at a circumferential edge of the base. The entire protrusion portion or a portion of a tip end side in a direction in which the protrusion portion extends is bent radially inside the base so that a surface of the protrusion portion which is toward an upper side is in contact with the base.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: January 2, 2018
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Tsuyoshi Yamaguchi, Takayuki Aoi, Hiroyuki Kiuchi
  • Patent number: 9850906
    Abstract: This centrifugal blood pump apparatus includes an impeller (10) provided in a blood chamber (7), and a plurality of coils (20) provided in a motor chamber (8) for driving the impeller (10) to rotate with a dividing wall (6) interposed therebetween. A flexible substrate (23) in the shape of a strip is arranged to surround outer circumferences of the plurality of coils (20), and is connected to the plurality of coils (20) and a connector (24). A driving voltage (VU, VV, VW) is externally supplied to the plurality of coils (20) via the connector (24) and the flexible substrate (23). Thus, assembling workability, productivity and reliability are improved.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: December 26, 2017
    Assignee: TC1 LLC
    Inventors: Takayoshi Ozaki, Hiroyuki Yamada, Ken Sugiura, Takehisa Mori, Takeshi Tsubouchi
  • Patent number: 9843243
    Abstract: Disclosed is an anti-separating structure of a sensing magnet for EPS motor, the structure being a coupling structure between the sensing magnet and a plate of the EPS motor, the structure including a disk-shaped plate formed with a magnet accommodation unit protrusively formed near at a rotation shaft, a ring-shaped sensing magnet centrally formed with a through hole having a diameter corresponding to the magnet accommodation unit, and magnet grip units each formed at a predetermined gap along a circumferential surface of the magnet accommodation unit.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: December 12, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Taehwan Kim, Shunghun Woo, Donggeun Chang, Byungyong Kim
  • Patent number: 9837196
    Abstract: A pendulum-type electromagnetic actuator is provided. The actuator includes a curved stationary member comprising a stationary core and a winding wound about the stationary core. A first moving member includes a first moving core and a first plurality of permanent magnets attached to the first moving core, the first moving member is curved and positioned on a first side of the stationary member. A second moving member includes a second moving core and a second plurality of permanent magnets attached to the second moving core, the second moving member is curved and position on a second side of the stationary member, the second side opposite the first side. The actuator further includes a pivot and a pivot connector connecting at least one of the first moving member and the second moving member to the pivot such that the curved moving member rotates about the pivot.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 5, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jacek F. Gieras, Lubomir A. Ribarov
  • Patent number: 9742227
    Abstract: An electric machine comprise a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles, the second carrier being arranged to move relative to the first carrier. An airgap is provided between the first carrier and the second carrier. The electromagnetic elements of the first carrier include posts, with slots between the posts, one or more electric conductors in each slot, the posts of the first carrier having a post height in mm. The first carrier and the second carrier together define a size of the electric machine. The magnetic poles having a pole pitch in mm. The size of the motor, pole pitch and post height are selected to fall within a region in a space defined by size, pole pitch and post height that provides a benefit in terms of force or torque per weight per excitation level.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 22, 2017
    Assignee: Genesis Robotics LLP
    Inventor: James Brent Klassen
  • Patent number: 9614420
    Abstract: A redundant brushless drive system, including a coil (12) having first and second phase windings operable independently of one another and first and second independently operable sensor groups for the rotational position of a rotor (11) and for commutation of the phase windings. The first and second sensor groups are positioned along the motor axle one-behind-the-other parallel to each other and symmetrical to the motor axle (10). An encoder circuit board (7) is configured such that an association of the sensor groups (G1, G2) to a phase winding (W1, W2) is configurable such that either the first sensor group (G1) is used for controlling the first phase winding (W1) and the second sensor group (G2) for controlling the second phase winding (W2), or the first sensor group (G1) is used for controlling the second phase winding (W2) and the second sensor group (G2) for controlling the first phase winding (W1).
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: April 4, 2017
    Assignee: DR. FRITZ FAULHABER GMBH & CO. KG
    Inventors: Herbert Wallner, Sanjay Jadhav
  • Patent number: 9595858
    Abstract: A vernier machine includes a rotor, permanent magnets mounted as spokes in pole pairs within the rotor, a first stator, a second stator, a first stator winding wound about the first stator to form a number of poles between a first set of terminals, and a second stator winding wound about the second stator to form the number of poles between a second set of terminals. The first stator and the second stator each include slots and teeth. The first stator and the second stator are mounted on opposite sides of the rotor with each separated by an air gap. The teeth of the first stator are offset from the teeth of the second stator by a half slot pitch relative to the rotor. A number of the pole pairs of the rotor is greater than the number of poles of the first stator winding.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: March 14, 2017
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Thomas A. Lipo, Byungtaek Kim
  • Patent number: 9583982
    Abstract: An axial flux stator includes a plurality of magnetically permeable members, a plurality of windings, a back iron, and an encasing. The plurality of windings is associated with the plurality of magnetically permeable members to produce a plurality of winding-magnetically permeable member assemblies. The back iron is mechanically butt joint coupled to the plurality of winding-magnetically permeable member assemblies. The encasing maintains the butt joint coupling of the back iron to the plurality of winding-magnetically permeable member assemblies.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: February 28, 2017
    Assignee: Bison Gear & Engineering Corp.
    Inventors: Lester B. Ashe, Matthew S. Hanson
  • Patent number: 9520719
    Abstract: A reluctance motor having a rotor and a stator that has a wound core, around which a stator coil is wound and which is open on one side and has legs, said legs being arranged around the periphery and forming spaced-apart pairs of legs. Multiple rotor teeth which are distributed around the periphery and periodically establish a magnetic flux between the legs radially engage between the legs. In order to positively change the characteristic curve of the magnetic flux of the legs and teeth, the teeth continuously form an area overlap with the legs in the direction of rotation of the rotor in accordance with the angle of rotation.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: December 13, 2016
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Matthias Gramann
  • Patent number: 9505299
    Abstract: A drive arrangement includes a housing having two chambers and a partition defining an annular space within the housing. A disk is mounted on a shaft of the drive arrangement and includes an annular portion disposed within the annular space. A face of the annular portion is axially spaced from the partition by a gap clearance. An axial dimension of the gap clearance is such that rotation of the disk generates a negative pressure gradient for drawing fluid from the first chamber through the gap clearance in a radial direction toward the rotation axis. The fluid then moves along the face of the disk in a radial direction away from the rotation axis under centrifugal action of the rotating disk. The outer periphery of the disk is spaced from the housing to permit fluid to pass, by centrifugal action, from the outer periphery toward a second chamber.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: November 29, 2016
    Assignee: Deere & Company
    Inventor: Briton T. Eastman
  • Patent number: 9502951
    Abstract: An electrical machine including a stator and a rotor rotatable relative to the stator with an air gap therebetween. The stator includes a first plurality of sources of magnetic field, which is equally spaced in a circumferential configuration over the stator. The rotor includes a second plurality of sources of magnetic field, which is equally spaced in a circumferential configuration over the rotor. The magnetic sources of at least one plurality are electromagnets and electromagnet includes at least one magnet coil resting on a magnet conductor. The magnetic conductor includes at least one member made of magnetically isotropic and/or anisotropic materials.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: November 22, 2016
    Assignee: EVR MOTORS LTD.
    Inventors: Eliyahu Rozinsky, Viktor Kislev, Ruslan Shabinski
  • Patent number: 9479018
    Abstract: An electrical machine has a drive shaft, a rotor affixed to the drive shaft and extending outwardly therefrom in which the rotor has at least one slice of a ferromagnetic material, a first plate positioned over and around the shaft and positioned adjacent to one side of the slice so as to have a portion extending radially outwardly beyond the circumferential surface of the slice, a second plate positioned over and around said shaft and positioned adjacent to another side of the slice so as to have a portion extending radially outwardly beyond the circumferential surface of the slice, and a magnet affixed to the circumferential surface in a location between the first and second plates.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: October 25, 2016
    Assignee: POWER GROUP INTERNATIONAL CORPORATION
    Inventor: Tomas Enrique Gottfried Blackmore
  • Patent number: 9464625
    Abstract: There is provided a wind power installation comprising a rotor to which rotor blades can be fitted, an electric generator having a generator stator and a generator rotor, and a plurality of displacement units. The first end of the displacement unit is fastened to the generator stator and the second end of the displacement unit is releasably fastened to the generator rotor. The displacement units each have a respective hydraulic cylinder, the deflection of which is controllable so that by actuation of the displacement unit the generator rotor is displaced relative to the generator stator.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 11, 2016
    Assignee: WOBBEN PROPERTIES GMBH
    Inventors: Albrecht Brenner, Frank Knoop, Matthias Ubben
  • Patent number: 9437357
    Abstract: A rotary input device includes a first annular magnetic body in which a plurality of outward protrusions protruding toward an outside in a radial direction are disposed along a circumferential direction, a second annular magnetic body in which a plurality of inward protrusions formed to oppose the outward protrusions of the first magnetic body are disposed along a circumferential direction, and a rotary knob configured to relatively rotate the first magnetic body and the second magnetic body. The first magnetic body includes a magnet in which opposing surfaces facing each other are vertically disposed and which is magnetized to two poles of an upper pole and a lower pole including the opposing surfaces, a pair of yokes that interposes the opposing surfaces of the magnet vertically, and the outward protrusion formed on the pair of yokes.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: September 6, 2016
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventors: Shigeru Furuki, Yukiharu Hayashi, Hiroshi Hashira, Yoshiyuki Iwazaki
  • Patent number: 9410990
    Abstract: A sensor comprises an inductor for sensing an alternating current signal component of an observed signal. The inductor comprises a substrate, conductive traces associated with different layers of the substrate, and one or more conductive vias for interconnecting the plurality of conductive traces. A magnetic field sensor senses a direct current signal component of the observed signal. A first filtering circuit has a high-pass filter response. The first filtering circuit is coupled to the inductor to provide a filtered alternating current signal component. A second filtering circuit has a low-pass filter response. The second filtering circuit coupled to the magnetic field sensor to provide a filtered direct current signal component. A sensor fusion circuit determines an aggregate sensed current based on the filtered alternating current signal component and the filtered direct current signal component.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: August 9, 2016
    Assignee: Deere & Company
    Inventors: Brij N. Singh, Aron Fisk, Neal D. Clements, Andrew D. Wieland
  • Patent number: 9391486
    Abstract: An electric power steering electric motor apparatus includes: an electric motor including: a motor housing; a stator; a rotor; and a power supplying portion that supplies electric power to the stator; and a controlling unit including: a driving circuit that supplies electric power to the electric motor; a connecting portion; a controlling circuit; and a case that covers the driving circuit and the controlling circuit, the electric motor and the controlling unit being mounted coaxially onto a gear housing that reduces rotational speed of the electric motor so as to position the controlling unit on a side near the gear housing, and the connecting portion being connected to the power supplying portion inside the case through an opening portion formed on the case, and being positioned and held by an insulating member so as to be insulated from the case and the motor housing.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: July 12, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Atsushi Sakaue, Yoshihito Asao, Satoru Akutsu, Isao Sonoda, Kazuhisa Takashima
  • Patent number: 9356496
    Abstract: A method for producing a brushless DC (BLDC) motor includes: providing a stator, a rotor having a shaft and a carrier element having a cutout through which the shaft passes, on which surface a plurality of Hall sensors are arranged with respect to the center point of the shaft, the carrier element being arranged fixedly with respect to the stator; prefixing a permanent magnet wheel with transducer magnets, on the shaft on a side of the carrier element facing away from the rotor magnet; setting the shaft into rotary motion, and detecting measurement signal profiles of the Hall sensors and measurement signal profiles representative of voltages induced in the coils depending on the rotor magnets; determining an adjustment angle for the permanent magnet wheel; rotating the permanent magnet wheel with respect to the shaft corresponding to the determined adjustment angle; and fixing the permanent magnet wheel on the shaft.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: May 31, 2016
    Assignee: Continental Automotive GmbH
    Inventor: Thomas Hannewald
  • Patent number: 9350208
    Abstract: A machine having a wound rotor (102) comprising a manifold (112) that includes a set of blades (131) and longitudinal notches (133). Rotor (102) also comprises a winding (108) formed of a set of conductors (134) that each comprise two arms (135.1, 135.2), connected together by a base (136). The curve, representing the electromotive force (EMF) generated by the rotor (102) on the basis of the angle of rotation of the rotor, is linear and steep in a switching region, and the notches (133) are angularly shifted relative to the blades (131) so that each notch (133) is located opposite a junction between two blades. The machine may relate to a starter fitted with the machine.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: May 24, 2016
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Nicolas Labbe, Aurélien Vauquelin, Benoit Dupeux
  • Patent number: 9337709
    Abstract: According to one embodiment, there is provided an axial gap type permanent magnet electric rotating apparatus including a first and second rotor. All a magnetic-pole directions of a permanent magnets of the first and second rotor are the same. A portion between two permanent magnets along a circumferential direction of each rotor is made of a magnetic material having substantially the same size as that of the permanent magnet such that axial-direction surfaces are the same between the permanent magnets on two sides in the circumferential direction. Between the first rotor and the second rotor, a magnetic flux flows along an axial direction while making a loop and passes through an armature.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: May 10, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Hashiba, Norio Takahashi, Makoto Matsushita, Masanori Arata, Toshio Hirano, Takaaki Hirose