Patents Examined by Tran N Nguyen
  • Patent number: 11962208
    Abstract: Proposed is an air gap adjustment apparatus. The apparatus is for enabling an air gap between the inner surface of a stator and the outer surface of a rotor, which are installed in an inner space of a housing, to be uniform overall. A plurality of fastening holes are formed so as to surround a shaft through hole of an end plate constituting the housing. A fastener, which has passed through a bearing housing of a bearing, is fastened to each fastening hole so as to mount the bearing to the end plate. An adjusting member body of an adjusting member, which has passed through the bearing housing, is positioned in an adjusting member seating part which is formed at the entrance of each fastening hole. The adjusting member rotates about the adjusting member body so that a head part may adjust the position of the bearing.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: April 16, 2024
    Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventors: Chul Jun Park, Sang Deok Kim, Seung Ki Kim, Yoon Zong Kim, Kyo Ho Lee, Kwang Jin Kim, Joo Seob Kim, Bit Na Oh
  • Patent number: 11955844
    Abstract: A rotor is provided with: a rotor core (32); a plurality of permanent magnets (33); a substantially tubular magnet cover (71); and a load reception block (70). The rotor core (32) rotates integrally with a rotary shaft of a motor. The permanent magnets (33) are arranged on the outer peripheral part of the rotor core (32). The magnet cover (71) covers the exterior of the plurality of permanent magnets (33) and the rotor core (32), and has a flange part which is bent radially inward at the end along a rotation axis. The load reception block (70) is disposed between the flange part and the end surface of the rotor core (32) in a direction along the rotation axis, and abuts against the flange part and the rotor core (32).
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 9, 2024
    Assignee: MITSUBA Corporation
    Inventors: Ryo Ohori, Koji Yonekawa, Takeshi Kanai
  • Patent number: 11949293
    Abstract: A rotor used in an outer rotor motor includes a rotor holder in a tubular shape extending along a center axis, a rotor core in a tubular shape extending in an axial direction and being fixed to a surface of the rotor holder, directed radially inward, and permanent magnets bonded to an inner circumferential surface of the rotor core and side by side in a circumferential direction. The rotor core includes projection portions projecting radially inward from the inner circumferential surface of the rotor core. One or more of the projection portions are in a gap between the permanent magnets adjacent to each other in the circumferential direction. Each of the projection portions has an axial length shorter than an axial length of each of the permanent magnets.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: April 2, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Shinji Takemoto, Tomoya Ueda, Mitsuhiro Takemoto, Yusuke Isogai
  • Patent number: 11949315
    Abstract: A motor according to the present disclosure includes a stator that includes a stator core around which a stator winding is wound; a rotating body that holds a plurality of magnets in a circumferential direction facing the stator or holds a plurality of magnets in a spoke shape from a center; a rotor that includes the rotating body, and a shaft fastened to the rotating body such that the shaft penetrates a center of the rotating body; two bearings that support the rotating body; a first metal bracket that fixes one bearing of the two bearings; and a second metal bracket that fixes the other bearing of the two bearings, and a capacitive member that has a capacitance Csb1sb2 and is located between the first metal bracket and the second metal bracket.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: April 2, 2024
    Assignee: WOLONG ELECTRIC GROUP CO., LTD.
    Inventors: Tatsuo Maetani, Yoshinori Isomura, Feng Hu
  • Patent number: 11949291
    Abstract: A motor includes a stator core having an annular shape about an axis, a coil wound on the stator core, and a rotor core disposed on an inner side of the stator core in a radial direction about the axis. The rotor core has a stacked body in which a plurality of steel laminations are stacked in a direction of the axis, and a magnet insertion hole famed in the stacked body. The rotor core has a length in the direction of the axis longer than that of the stator core. A magnet is inserted in the magnet insertion hole. The rotor core has a first region where the magnet is inserted in the magnet insertion hole and a second region where the magnet is not inserted in the magnet insertion hole, in the direction of the axis. At least one steel lamination in the second region of the rotor core has an opening area smaller than an opening area of each steel lamination in the first region of the rotor core.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: April 2, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Emi Tsukamoto, Masahiro Nigo
  • Patent number: 11943905
    Abstract: An EMI attenuation device includes a housing stator, a fan rotor, and an electrical bridge therebetween. The housing stator has an aperture therethrough, and at least a portion of the housing stator is electrically conductive. The fan rotor is adjacent to the aperture and has a rotational axis relative to the housing stator and a proximate surface proximate the housing stator. The fan rotor is electrically conductive, and the proximate surface is continuous around a rotational direction of the fan rotor. The electrical bridge is between the proximate surface of the fan rotor and a contact surface of the housing stator.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: March 26, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jason A. Harrigan, David Bennett Johnson
  • Patent number: 11936276
    Abstract: A motor assembly includes a motor, an electric pump to supply oil to the motor, an inverter assembly connected to the motor, and a first wire harness and a second wire harness. The inverter assembly includes an inverter to convert a high-voltage direct current into an alternating current and supply the alternating current to the motor, and a controller to control the inverter and the electric pump. The first wire harness electrically connects an external power supply and the inverter assembly, and passes a low-voltage power supply line. The low-voltage power supply line is, at a branch point, branched into a controller power supply line to supply drive power to the controller and a pump power supply line to supply drive power to the electric pump.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: March 19, 2024
    Assignee: NIDEC CORPORATION
    Inventors: Keisuke Fukunaga, Yohei Miyata, Hironobu Kumagai
  • Patent number: 11909293
    Abstract: A rotor sleeve (46) for a rotor (29) of an electric machine (28). The sleeve comprises a plurality of layers (66a, 66b) of carbon fibre reinforced polymer, each layer (66a, 66b) comprising fibres (68) oriented substantially 90° to a rotational axis (X) and at least one layer (72a) of fibres (74) having a lower modulus of elasticity provided between layers (66a, 66b) of carbon fibre reinforced polymer. The lower modulus of elasticity fibres (74) are oriented between 50° and 75° relative to the rotational axis (X).
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: February 20, 2024
    Assignee: ROLLS-ROYCE ELECTRICAL NORWAY AS
    Inventor: Jørg Høyland
  • Patent number: 11909268
    Abstract: A rotor assembly for a motor includes at least one magnet, a magnet support having an end region, a rotor shaft and an over-molded body affixed to the at least one magnet and the magnet support. The over-molded body includes a first end and a second end. The rotor shaft may be disposed proximate to the first end of the over-molded body and the second end of the over-molded body is proximate to the end region of the magnet support.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: February 20, 2024
    Assignee: ZF Active Safety US Inc.
    Inventor: Irfan Bhatti
  • Patent number: 11894730
    Abstract: An electric motor includes at least one bearing and a rotatably-mounted axle. During operation, generated sound can be detected by a sound sensor. A sound chamber is formed in the electric motor, and is delimited by several boundary surfaces. At least one of the boundary surfaces may include an acoustic surface that is formed by a surface of the bearing or by a surface of a body conducting sound. The sound sensor is arranged in the sound chamber to detect sound transmitted from the acoustic surface to the sound sensor. The motor may be part of a fan and/or a system having an evaluation unit. In the former case, an impeller is provided, which is connected to a rotor of the electric motor. In the second case, the evaluation unit has a communication interface via which readings of a sound sensor and/or processed readings from sensor electronics may be received.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: February 6, 2024
    Assignee: ZIEHL-ABEGG SE
    Inventor: Joachim Knorr
  • Patent number: 11888381
    Abstract: An electric machine comprising a rotor, a stator, and a fluid-based brake arrangement for said rotor, said fluid-based brake arrangement having a fluid circuit for transporting a brake fluid, said fluid circuit comprising a fluid channel arrangement having at least one radial fluid channel segment extending radially through a part of said rotor so as to allow for directing brake fluid from an inner radial rotor side to an outer radial rotor side, whereby, during rotation of said rotor about an axial centre axis, acceleration of brake fluid in said at least one radial fluid channel segment causes a reaction force exerting a braking torque on the rotor.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: January 30, 2024
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Johan Folkesson
  • Patent number: 11888366
    Abstract: The disclosure relates to an electric induction machine in which a chamfer region is provided between each respective rotor groove and rotor bar at a position corresponding to a radially outer internal corner region of the rotor groove. Suitably, the chamfer region has a relative magnetic permeability less than that of the rotor frame, and an electrical resistivity higher than that of the rotor bar. Moreover, a minimum diameter of the chamfer region is suitably larger than a manufacturing-tolerances derived maximum clearance between the respective rotor groove and robot bar, if any.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: January 30, 2024
    Assignee: ABB Schweiz AG
    Inventors: Mikael Heikel, Mark Szucs-Bartfai, Aron Szucs, Blanka Szucs-Bartfai, Zsolt Kovacs, Jan Westerlund
  • Patent number: 11877042
    Abstract: An embodiment of the present invention comprises: a housing; a bobbin disposed within the housing; a first magnet disposed on a first side of the bobbin; a second magnet disposed on a second side of the bobbin; a first coil disposed in the housing so as to correspond to the first magnet; a second coil disposed in the housing so as to correspond to the second magnet; first to third springs coupled to the bobbin; and a circuit board disposed in the housing and having first and second terminals, wherein the first spring connects one end of the first coil with the first terminal of the circuit board, the second spring connects one end of the second coil with the second terminal of the circuit board, and the third spring connects the other end of the first coil with the other end of the second coil.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: January 16, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Sung Guk Lee
  • Patent number: 11863048
    Abstract: An embodiment rotor includes a rotor core, a plurality of permanent magnets inserted into an outer circumference portion of the rotor core, and a balancing structure provided on an inner circumference portion of the rotor core, wherein the balancing structure has a preset shape for balancing. An embodiment method for correcting a rotation imbalance of a rotor includes forming a plurality of balancing structures having a preset shape along an inner circumference portion of a rotor core, wherein a plurality of permanent magnets is inserted into an outer circumference portion of the rotor core, identifying a mass imbalance point in the rotor core, and removing a balancing structure of the plurality of balancing structures at a position corresponding to the identified mass imbalance point.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: January 2, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Kyung Soo Park
  • Patent number: 11863042
    Abstract: A power transmission device includes an annular transmission unit having an annular first magnetic core and a transmission coil and an annular reception unit having an annular second magnetic core and a reception coil. The transmission unit and the reception unit are arranged to face each other. The power transmission device transmits power from the transmission unit to the reception unit. The transmission unit and the reception unit are relatively rotatable about a rotation axis passing through a cavity inside the transmission unit and a cavity inside the reception unit, the first magnetic core has a structure divided into a plurality of first split cores in a circumferential direction, and the second magnetic core has a structure divided into a plurality of second split cores in the circumferential direction.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: January 2, 2024
    Inventor: Ryuhei Hata
  • Patent number: 11863053
    Abstract: A lubricant supported electric motor includes a stator presenting an outer raceway and a rotor extending along an axis and rotatably disposed within the stator. The rotor presents an inner raceway disposed in spaced relationship with said outer raceway to define at least one hydrostatic support chamber disposed therebetween. A lubricant is disposed in the hydrostatic support chamber for supporting the rotor within the stator. A monitoring port is disposed in fluid communication with the at least one hydrostatic support chamber, and a sensor is coupled with the monitoring port for monitoring an operating characteristic of the lubricant disposed in said at least one hydrostatic support chamber. This monitored operating characteristic is then used to determine a real-time operating condition of the lubricant supported electric motor.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: January 2, 2024
    Assignee: NEAPCO INTELLECTUAL PROPERTY HOLDINGS, LLC
    Inventors: Donald Remboski, Jacqueline Dedo, Mark Versteyhe
  • Patent number: 11862321
    Abstract: An ingredient determining apparatus configured to determine nutritional ingredients in food provided for a user. The ingredient determining apparatus includes a processor configured to obtain a muscle index indicating a degree of muscle mass of the user and a fat index indicating a degree of fat mass of the user, and determine the nutritional ingredients based on the muscle index and the fat index.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: January 2, 2024
    Assignee: TANITA CORPORATION
    Inventors: Miyuki Kodama, Akiko Kubo, Haruna Nakatani, Masaki Yasuda, Senri Tanida, Toru Ichihashi
  • Patent number: 11862337
    Abstract: The present specification discloses systems and computer implemented assessment methods including a system and method of assigning an individual to a group participating in a clinical study regarding a psychotic disorder, a system and method of determine whether and what type of psychotic disorder an individual may be suffering from; and a system and method of recommending a therapy to treat an individual with a psychotic disorder. All disclosed systems and computer implemented assessment methods use a non-invasive computational device-based test that uses a graphical user interface to measure a latent inhibition response of an individual to calculate a latent inhibition score and assess working memory. The latent inhibition score determines whether the individual exhibits an attenuated latent inhibition response, a normal latent inhibition response or an enhanced latent inhibition response.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: January 2, 2024
    Assignee: Cambridge Cognition Limited
    Inventors: Kiri Granger, Jennifer Barnett
  • Patent number: 11855506
    Abstract: The present disclosure provides a base assembly of voice coil motor and a voice coil motor. The base assembly includes a base body having an elastic piece connecting area with a protrusion; a lower elastic piece disposed on the elastic piece connecting area with a first connecting hole, a second connecting hole, and a first trench, the protrusion is exposed from the first connecting hole, and the first trench is disposed between the first connecting hole and the second connecting hole; a connecting piece; and a terminal having a conductive part and a terminal connecting part, wherein the conductive part is disposed in the base body, the terminal connecting part passes through the elastic piece connecting area and protrudes from the elastic piece connecting area, and a part of the terminal connecting part is exposed from the second connecting hole to be fixedly connected to the lower elastic piece.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: December 26, 2023
    Assignee: Lanto Electronic Limited
    Inventors: Wen-Yen Huang, Fu-Yuan Wu, Shang-Yu Hsu, Meng-Ting Lin, BingBing Ma, Jie Du, Yu-Cheng Lin
  • Patent number: 11843302
    Abstract: A linear translator device, including: a first body; a second body; and a plurality of actuators; wherein each actuator includes a first part first part mounted to the first body and a second part is mounted to the second body, the first part includes a front end and a back end, the second part is configured to extend and retract parallel to the direction of motion; wherein the plurality of actuators are arranged so that the extending or retracting direction of the second part of one of the plurality of actuators is offset, parallel and opposite to that of another one of the plurality of actuators; and wherein at least a portion of the first part of the one of the plurality of actuators overlaps with a portion of the first part of the other one of the plurality of actuators in the direction of motion space.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: December 12, 2023
    Assignee: Thorlabs, Inc.
    Inventors: Tyler Morgus, Brian Mitchell, John Cherny