Patents Examined by Minki Chang
  • Patent number: 11123767
    Abstract: According to one embodiment, a tactile actuator can comprise: a housing having an accommodation space therein; a cap covering at least a portion of the accommodation space; a vibration unit disposed inside the accommodation space; an elastic member for connecting the housing and the vibration unit such that the vibration unit can vibrate with respect to the housing; a coil for forming a magnetic field to drive the vibration unit; and a control unit for determining any one driving mode on the basis of collected driving information from among a plurality of preset driving modes and determining, according to the driving mode, the characteristic of a current to be applied to the coil.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: September 21, 2021
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Hyeong Jun Kim, Jong Hun Lee, Jeong Bum Lee, Ji Goo Kang, Jong Hyung Jung
  • Patent number: 11121607
    Abstract: An electronic system housing for an E-axle drive of a motor vehicle is disclosed. The electronic system housing comprises a power electronic system received within the electronic system housing for processing voltage in high voltage systems. At least one low voltage component is further received within the electronic system housing.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 14, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Andre Speck, Eduard Enderle, Peter Schwanemann, Christian Möhring, Johannes Herrmann, Ronald Glas, Julian Botiov, Cédric Blaes
  • Patent number: 11114926
    Abstract: An electromagnetic energy converter includes: a conducting coil; a main magnet in an inner space V formed by the conducting coil, retaining structure allowing the main magnet to rotate about an axis YY? between two stable equilibrium positions; a first actuator magnet and a second actuator magnet disposed facing the first end and the second end respectively, the first and second actuator magnets being arranged to slide simultaneously in the same direction and parallel to the main axis XX? once a force is exerted on either one of the first or second magnets.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: September 7, 2021
    Inventors: Gerard Delette, Olivier Tosoni
  • Patent number: 11108286
    Abstract: An electrical machine has passages in the coil ends of a stator. The passages have an inlet port and an exit port disposed at different locations. The passages remove heat from the electrical machine during operation. The passages formed in the coil ends can receive a cooling fluid discharged from cooling passages formed in a stator core. Tooling can be used to form the passages. In some embodiments passages are also formed in the rotor. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for electrical machines and the cooling of electrical machine rotors and/or stators.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: August 31, 2021
    Assignee: Trane International Inc.
    Inventor: Fredrik Boxberg
  • Patent number: 11108297
    Abstract: An aspect of a motor according to the invention includes a stator, a rotor, a detector configured to detect a rotating position of the rotor, a holder disposed between the stator and the detector in the predetermined direction, and a bearing held by the holder and configured to rotatably support the shaft. A recess opened toward the stator and housing the bearing and an injection hole including a first opening opened toward the detector, the injection hole communicating with the recess, are provided in the holder. A groove into which an adhesive is injected is provided on the inner surface of the recess. The outer circumferential surface of the bearing is fixed to the inner surface via the adhesive. The injection hole includes a second opening opened in the inner circumferential surface of the recess and connected to the groove. The injection hole is closed by a screw.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: August 31, 2021
    Inventor: Yoshiteru Nishimura
  • Patent number: 11101720
    Abstract: The invention relates to a method for connecting free flat wire ends (4, 5) with a substantially rectangular cross section with four sides (41, 42, 43, 44) of a stator of an electrical machine, comprising the steps at: stripping a first flat wire end (4), sheathed with an insulation material, such that partial stripping is carried out at least on three sides (41, 42, 43) and such that the insulation material remains complete on a fourth side (44) of the first flat wire end (4), and electrically connecting the stripped first flat wire end (4) on the completely stripped side (43) to a second flat wire end (5).
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: August 24, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Tobias Hein, Fabian Lange, Martin Ermer
  • Patent number: 11088594
    Abstract: A motor includes a rotor, a stator, a housing, a heat sink, a substrate, a connector, and a cover. The connector includes a connector shell with a shell projection or shell recess. The heat sink includes a heat sink body and a heat sink protrusion. The heat sink protrusion includes a heat sink recess or heat sink projection. The shell projection or shell recess, and the heat sink recess or heat sink projection are fitted through a gap.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: August 10, 2021
    Assignee: Nidec Corporation
    Inventors: Takashi Hattori, Yusaku Yoshida, Toshiya Okamoto, Takahiro Kizu, Yuichi Nishikawa
  • Patent number: 11088586
    Abstract: A motor includes a motor main body including a rotor rotatable about on a central axis extending in an up-down direction, a controller to control the rotation of the rotor, the controller being disposed on an upper side of the motor main body, a cover surrounding the controller from an outward diameter direction, the motor main body including a sealing surface with a groove portion opened upward, the cover including a lower end portion inserted into the groove portion, an outer flange portion located above the lower end portion and extending in an outward diameter direction, and an inner flange portion located above the lower end portion and extending in an inward diameter direction, the outer flange portion faces the sealing surface through a first space, the inner flange portion facing the sealing surface through a second space, and insides of the groove, the first space, and the second space are filled with an adhesive.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 10, 2021
    Inventors: Hiroshi Ogawa, Yoshinobu Arao, Yoshiaki Yamashita
  • Patent number: 11070115
    Abstract: An electromagnetic motor/generator comprising a flux assembly having at least one coil and at least one magnetic field source separated by a first gap and a second gap and an interference drum which is movable relative to the at least one coil and to the at least one magnetic field source to alternatively position at least one first magnetically permeable section and at least one second magnetically permeable section inside the first and second gaps.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 20, 2021
    Assignee: Prototus, Ltd.
    Inventor: Carl E. Copeland, Jr.
  • Patent number: 11070099
    Abstract: In order to provide a cooling structure of a stator of a rotating electrical machine that is capable of surely cooling a stator coil end of each unit coil, a cooling structure of a stator of a rotating electrical machine that conducts cooling of a stator coil end (42A) by a refrigerant is provided with an oil guide (52) including a refrigerant passage (521) that is disposed to be opposed to an axial end portion of the stator coil end (42A), the refrigerant flowing through the refrigerant passage (521); and a refrigerant discharging portion (523) that projects from the refrigerant passage (521) toward the stator coil end (42A) of each unit coil (42a) and discharges the refrigerant from a tip end thereof.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: July 20, 2021
    Inventor: Tamotsu Sakai
  • Patent number: 11043874
    Abstract: In a motor according to an aspect of the invention, a brake includes a first clamp and a second clamp, a member to be clamped disposed between the first clamp and the second clamp, a first fixing member configured to fix the member to be clamped to a shaft, and a driving section configured to bring the first clamp and the second clamp into contact with the member to be clamped. The first clamp includes a first contact section. The second clamp includes a second contact section. A first housing hole is provided in a housing. The driving section includes a power cable drawn out to the outside of the housing via the first housing hole. The first housing hole overlaps the first contact section, the second contact section, the member to be clamped, and the first fixing member in a plan view from a first radial direction.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: June 22, 2021
    Inventors: Yoshiteru Nishimura, Hiroshi Makino
  • Patent number: 11018536
    Abstract: An electromagnetic rotating motor system that comprise of a grooved wheel with one or more permanent magnets tangentially embedded in a horse-shoe pattern within the groove around the wheel rim with similar poles pointing in the same direction and wherein induction coils or electromagnets are positioned to fit tangentially between the permanent magnet(s) in the groove with the pole axis of the electromagnet parallel to that of the permanent magnets and with the coiling and powering made such that it generates magnetic poles that are similarly aligned to the poles of the permanent magnets such that when current is passed through the coil, the poles of the electromagnet and the permanent magnet repel each other forcing the wheel holding the magnets to rotate away from the coil.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: May 25, 2021
    Inventor: Jude Igwemezie
  • Patent number: 11018542
    Abstract: Rotating machinery includes a two-pole rotor, a stator core with seventy-two slots, and three-phase armature windings, as an example. The armature winding has two phase belts per phase. The phase belt includes a first parallel winding and a second parallel winding which are arranged in the stator slots as top coils and bottom coils. When a circumferential mean position of all top coils and bottom coils included in the phase belt is defined as a phase belt center, an arrangement of the first and second parallel windings in the phase belt, as viewed in order of proximity to the phase belt center, is such that the first and second parallel windings are arranged in order of second/first/second/first/first/second/first/second/first/second/second/first parallel windings as the top coils, and the first and second parallel windings are arranged in order of first/second/second/first/second/first/first/second/first/second/second/first parallel windings as the bottom coils connected to the top coils.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: May 25, 2021
    Inventors: Kazuhiko Takahashi, Harumasa Tsuchiya
  • Patent number: 11007862
    Abstract: An electric motor includes a rotor rotatable about a center axis; and a rotor carrier including an outer circumferential surface having a varying diameter defined by radially inner surface sections and radially outer surface sections. The radially outer surface sections are bonded to an inner circumferential surface of the rotor by an adhesive. A hybrid module configured for arrangement in the torque path upstream from a transmission and downstream from an internal combustion engine includes the electric motor and a torque converter including a front cover. The rotor carrier is fixed to the front cover.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: May 18, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Justin Persinger
  • Patent number: 11005335
    Abstract: An energy apparatus that stores and disperses energy, the energy apparatus including: (1) an energy object that experiences movement so as to store kinetic energy in the energy object, the energy object including a magnet assembly through which electrons are driven resulting in electric output from the magnet assembly, and the electric output dependent on experienced EMF (electro-motive force) that is experienced by the magnet assembly; (2) a supporting structure that supports the energy object while providing for the movement of the energy object; (3) a first tuning magnet that is supported adjacent the energy object, the first tuning magnet positionable throughout a range of positions, the positions including a first position and a second position; (4) a second tuning magnet that is supported adjacent to the energy object.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: May 11, 2021
    Inventor: Joshua Robert Miner
  • Patent number: 10998796
    Abstract: A structure for cooling a rotating electrical machine includes: an oil pump, a supply oil passage connected to a discharge port of the oil pump, and a first oil passage that is an oil passage located above a stator of the rotating electrical machine in a vertical direction and that has a supplied portion, a discharge hole, and a discharge portion. The supplied portion is connected to the supply oil passage. The discharge hole is formed on a first side in an axial direction, which is one side in the axial direction of the rotating electrical machine with respect to the supplied portion and is configured to discharge oil toward the stator. The discharge portion is formed on the first side with respect to the discharge hole. A second oil passage is formed inside a rotor shaft to which a rotor of the rotating electrical machine is fixed, and a third oil passage connects the discharge portion of the first oil passage and the second oil passage.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: May 4, 2021
    Inventors: Masayuki Ikemoto, Takuya Komatsu, Takefumi Komaki, Hiroshi Kato, Satoshi Miyanaga, Yoshinari Nakagawa, Tomohito Ono, Hiroto Hashimoto, Takashi Matsumoto
  • Patent number: 10992215
    Abstract: Disclosed is a vibration motor including a housing, a vibrator accommodated in the housing, a driving apparatus, and an elastic part elastically supporting the vibrator. The housing includes a top wall, a bottom wall and a side wall, the vibrator includes a counterweight block and a magnet steel disposed therein, and the counterweight block includes an upper surface, a lower surface, and an inner wall connecting the upper surface and the lower surface. The driving apparatus includes a first coil, a second coil, and an iron core. The iron core includes a main body portion, a first fixed end, and a second fixed end, the first coil is sleeved over the first fixed end, the second coil is sleeved over the second fixed end, and the main body portion of the iron core is disposed in the hollow portion and disposed opposite and spaced from the magnet steel.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 27, 2021
    Inventors: Yun Tang, Lubin Mao
  • Patent number: 10971964
    Abstract: A stator for a multiphase electric motor includes a plurality of laminates stacked to form a cylindrical stator core having a plurality of longitudinal slots; a plurality of electrical conductors grouped into a plurality of discrete electrical circuits, each of the plurality of the electrical conductors forming a plurality of coils in the slots spaced about the stator core, and each of the coils having a pair of leads; a plurality of bus cables, each of the plurality of bus cables having a mechanical connection to the pluralities of coils at ends of the slots; and wherein one of the leads from each of the coils is electrically connected to one of the plurality of bus cables.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 6, 2021
    Inventors: Joseph A. Zahora, William R. Compton
  • Patent number: 10958137
    Abstract: In a drive device, a housing includes an outer lid that covers one side in an axial direction of a motor shaft. A pump includes an external gear fixed to an end on one side in the axial direction of the motor shaft, an internal gear surrounding a radial outside of the external gear and meshing with the external gear, a pump room recessed from a surface on the other side in the axial direction of an outer lid toward one side in the axial direction, the pump room accommodating the internal gear and the external gear, a suction port through which the oil is to be sucked into the pump room, and a discharge port through which the oil is to be discharged from the pump room. The motor shaft includes a motor shaft body to which a rotor core is fixed and a closer fixed to the motor shaft body to overlap the internal gear and close at least a portion of the opening on the other side in the axial direction of the pump room.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: March 23, 2021
    Inventors: Takayuki Migita, Yuki Ishikawa, Shuhei Nakamatsu
  • Patent number: 10951103
    Abstract: Embodiments involve rotors for axial flux induction rotating electric machines that use a soft magnetic composite for the rotor core. A first embodiment is directed to a rotor for a rotating electrical machine that transmits magnetic flux parallel to a shaft of the rotor. The rotor includes a rotor winding and a plurality of cores. The rotor winding consists of a solid piece of conductive material that comprises a plurality of cavities. Each core is placed in a respective cavity and comprises a highly resistive isotropic ferromagnetic powder.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 16, 2021
    Assignee: Maxxwell Motors, Inc.
    Inventors: Michael Cunnyngham, Maksym Pryimak