Patents Examined by Quyen P. Leung
  • Patent number: 11515746
    Abstract: A cooling mechanism for a vehicle electric motor. The cooling mechanism includes: a coolant oil passage provided between a rotor core and a rotor shaft of the electric motor; an oil supply passage provided inside the rotor shaft and communicating with the coolant oil passage; and at least one first discharge port and at least one second discharge port provided in respective first and second end plates disposed on respective opposite sides of the rotor core. The coolant oil passage includes a first passage portion communicating with the at least one first discharge port, and a second passage portion communicating with the at least one second discharge port. Each of the at least one first discharge port is located in a position that is different from a position of any one of the at least one second discharge port as seen in an axial direction of the rotor shaft.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: November 29, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Nobuyuki Takahashi, Junichi Yokota, Yasunari Furuta
  • Patent number: 11509187
    Abstract: A rotary dynamoelectric machine includes a single- or multi-phase winding system, which is arranged in a stator and has winding connection lines which are guided into a terminal box for contacting external connection lines. The terminal box is located in a region of an end side of the stator, is recessed in a housing of the stator, and is arranged axially between the stator and an end shield.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: November 22, 2022
    Assignee: Siemens Aktiengesellschaft
    Inventor: Valerias Schmidt
  • Patent number: 11509200
    Abstract: A process for making a continuous bar winding (4) for an electric machine is described, comprising: a) a step of providing a template (10) having a template axis (X) and a circular array of slots (11) extended about said template axis (X), said circular array of slots having a number of slots equal to a number of slots of the stator or of the rotor of said electric machine, each slot (11) of said circular array having a first and a second open end face (11A, 11B) which are axially spaced from one another and a third open end face (11C), said third face (11C) being a longitudinal face extended between said first and second end faces (11A, 11B) b) a step of providing a conductive bar (20); c) a step of locking a locking portion (21) of said conductive bar; d) a step of inserting the conductive bar (20) into the slots (11) of said array and shaping the conductive bar (20) so that such conductive bar (20) repeatedly passes through the slots (11) of said array from the side of the first open end faces (11A) to the
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: November 22, 2022
    Inventors: Giuseppe Ranalli, Maurilio Micucci, Giovanni Ruggieri
  • Patent number: 11509190
    Abstract: A motor includes: a motor housing; a stator disposed inside the motor housing and supported by the motor housing; and a thermally conductive sheet disposed so as to fill a gap in a radial direction or an axial direction between the motor housing and the stator.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: November 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Vissuta Jiwariyavej, Yukio Yamashita
  • Patent number: 11502585
    Abstract: A method for producing a squirrel-cage rotor of an asynchronous machine includes the following steps: providing a main body, which is magnetically conductive at least in parts and has substantially axially extending grooves; inserting electrical conductors into the grooves in such a way that the conductors protrude from the axial ends of the magnetically conductive main body; positioning electrically conductive end rings, which have a plurality of openings for receiving the respective conductors; and establishing electrical contact between the conductors and the end rings by way of one or more additive manufacturing processes.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: November 15, 2022
    Assignee: Siemens Mobility GmbH
    Inventors: Olaf Koerner, Freerk Jacobus Oude Kotte
  • Patent number: 11496007
    Abstract: A permanent magnet motor and a compressor are provided. The motor has a rotor, a stator core, and a stator winding. A plurality of coupled coils are disposed on the stator core. The coil includes a first type coil and a second type coil. The stator winding is a three-phase stator winding. Each phase of the stator winding is provided with three joints In each phase, a first joint and a second joint are disposed on the first type coil, a third joint in the stator winding of each phase is disposed on the second type coil. The permanent magnet motor provided by the present disclosure can improve the efficiency of the motor and reduce noise.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: November 8, 2022
    Assignee: ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD.
    Inventors: Fei Xu, Xiaohua Qiu, Zhengzhong Qiao
  • Patent number: 11496014
    Abstract: A winding head arrangement for an electric rotating machine includes a base body including an electrically conductive material having an electrically insulating coating, and a plurality of conductors made from a first metal material and connected to the base body via the electrically insulating coating by a first additive production method.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 8, 2022
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Karsten Brach, Jens Dahl Jensen, Hartmut Rauch, Olaf Rehme, Jakob Schneck, Oliver Stier
  • Patent number: 11486484
    Abstract: A motor assembly includes a motor, a housing that accommodates the motor, an inverter electrically connected to the motor, an inverter case that accommodates the inverter, an auxiliary device provided in a lower portion of the housing to oppose a road surface, a wire harness that includes a first connector connected to a connector provided in the inverter case, a second connector connected to a connector provided in the auxiliary device, and an electric wire connecting the first connector and the second connector, and a lower connector cover provided in the lower portion of the housing and covering the second connector from a lower side.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 1, 2022
    Assignees: NIDEC CORPORATION, NIDEC TOSOK CORPORATION
    Inventors: Shuhei Nakamatsu, Keisuke Fukunaga, Naohiro Wada, Masumi Mizutani
  • Patent number: 11469634
    Abstract: A permanent magnet electric motor includes a shaft extending along a longitudinal axis, wherein the shaft defines a shaft jacket extending along a first direction, a rotor mounted on the shaft, a stator disposed about the rotor. The rotor defines a plurality of longitudinal channels each with the shaft jacket. The longitudinal channels are part of a rotor jacket. The rotor jacket includes a plurality of inlets fluidly interconnecting the shaft jacket and the plurality of the longitudinal channels. The rotor jacket includes an inner edge and an outer edge opposite the inner edge. The rotor jacket includes a plurality of outlets each in fluid communication with the plurality of longitudinal channels. Each of the outlets is closer to the inner edge than to the outer edge of the rotor jacket.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: October 11, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xiaofeng Yang, Wei Zeng, Lei Hao, Srihari K. Gangaraj
  • Patent number: 11462964
    Abstract: The present invention provides a motor including: a rotating shaft; a rotor including a hole in which the rotating shaft is disposed; a stator disposed at an outside of the rotor; a housing configured to accommodate the rotor and the stator; and a sealing guide disposed to cover an opening formed in one side of the housing, wherein the sealing guide supports a terminal of the stator exposed at an outside of the housing.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 4, 2022
    Assignees: LG INNOTEK CO., LTD., Mando Corporation
    Inventors: Kyung Sang Park, Seong Jin Kim, Chang Hyun Park
  • Patent number: 11457781
    Abstract: A nozzle of a cleaner includes: a housing; a rotation cleaning unit accommodated in the housing and configured to clean a surface based on a rotation operation; and a drive unit inserted into a side of the rotation cleaning unit. The drive unit includes a motor, a motor supporter fixed to the housing and coupled to the motor, a gear unit connected with a rotation shaft of the motor to transfer a driving force, and a shaft connected to the gear unit and the rotation cleaning unit to transfer a rotation force to the rotation cleaning unit. The motor includes a printed circuit board (PCB) installation portion in which a PCB is installed and which is spaced apart from the motor supporter, in which a first space portion in which the air flows is formed between the motor supporter and the PCB installation portion.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 4, 2022
    Assignee: LG Electronics Inc.
    Inventors: Jinhyouk Shin, Ingyu Yang, Jungwan Ryu, Namil Woo
  • Patent number: 11451099
    Abstract: A method of assembling a coil on an irregular-shaped multi-part tooth of an electric machine may include inserting at least one wedge-portion of the multi-part tooth into an opening of the coil such that a broader end of the at least one wedge-portion extends out of the opening in the coil. The method may also include mounting the coil with the inserted at least one wedge-portion on a core tooth-portion of the multi-part tooth such that the broader end of the at least one wedge-portion remains extended out of the opening in the coil, exerting a force on the broader end of the at least one wedge-portion to tighten the coil on the multi-part tooth.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: September 20, 2022
    Assignee: EVR MOTORS LTD
    Inventors: Victor Kislev, Oleg Gaspar, Ruslan Shabinski, Eliyahu Rozinsky
  • Patent number: 11451102
    Abstract: A rotary electric machine including a rotor including a rotor core; permanent magnets to be embedded in the rotor core; and a one end-side end plate configured to support one end side of the rotor core. The rotor core has rotor refrigerant passages through which refrigerant for cooling the permanent magnets flows in an axial direction of the shaft. The one end-side end plate has an end plate refrigerant passage communicating with the rotor refrigerant passages. The end plate refrigerant passage has refrigerant reservoirs, each projecting to an outer side in a radial direction of the shaft.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 20, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Kimoto, Junji Kitao, Tomohira Takahashi, Yoshihiro Miyama, Junichi Nakazono
  • Patent number: 11444519
    Abstract: A resin molding method includes a first step of supplying electricity to and heating a stator coil via a stator terminal in a state that the stator terminal clamped; and a second step of molding an insulating resin at a coil end of the heated stator coil. The first step places the stator terminal on a conducting terminal block in such a state that clamping of the stator terminal by the conducting terminal block and a terminal holding member is released, before supplying electricity to the stator coil, and lifts up and down the conducting terminal block, such that the portion of the stator terminal becomes within a predetermined range.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: September 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihide Shimmei, Yoshiaki Tokunaga
  • Patent number: 11444503
    Abstract: A motor includes a rotor including a shaft extending along a central axis, a stator including a coil and opposing the rotor in a radial direction with a gap, and a busbar positioned at one axial-directional side of the stator. The busbar includes a conducting wire-connecting portion connected to a conducting wire extending from the coil. A notch into which the conducting wire is inserted is provided in the conducting wire connecting portion. An inner circumferential surface of the notch includes a bottom surface opposing an opening side of the notch, a first opposed surface extending from the bottom surface towards the opening, and a second opposed surface extending from the bottom surface towards the opening and opposing the first opposed surface.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 13, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Tatsuya Onishi, Kosuke Ogawa, Takashi Seguchi, Shunsuke Murakami
  • Patent number: 11437888
    Abstract: A medium conveying and heat exchange device and a vortex flow separator for an iron core of an electromagnetic device is provided. The vortex flow separator includes a jet pipe and a vortex flow separation pipe, the vortex flow separation pipe includes a vortex flow chamber, a cold end pipe section and a hot end pipe section. Compressed airflow flows through the jet pipe to form spiral airflow and flow into the vortex flow chamber in a tangential direction thereof. A valve having a cone-shaped surface is arranged inside the hot end pipe section, central airflow of the spiral airflow passes by the cone-shaped surface of the valve and flows back, and is cooled to become cold airflow, and then flows out from the cold end pipe section, to serve as cooling and drying airflow of the input electromagnetic device.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: September 6, 2022
    Assignee: BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.
    Inventor: Shengjun Ma
  • Patent number: 11437881
    Abstract: A motor includes a sheet-metal cover accommodating a stator and a substrate and a wiring assembly electrically connected to the substrate. The cover includes a wiring lead port, which is open to a wall of the cover and communicates with an outside and an inside of the cover. The wiring assembly includes cables connected to the substrate and extending from the inside of the cover to the outside through the wiring lead port, a sleeve with a tubular shape into which the cables are inserted, the sleeve having an elastic modulus smaller than an elastic modulus of a coated portion of the cable, and a binder that bundles the cables through the sleeve. The sleeve is opposed to the wiring lead port from the inside of the cover, and an outer diameter of the sleeve is larger than an inner diameter of the wiring lead port.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: September 6, 2022
    Assignee: NIDEC SERVO CORPORATION
    Inventors: Ryotaro Takahashi, Koji Mizukami
  • Patent number: 11437875
    Abstract: A cylindrically-shaped motor shaft forming a rotational axis of a motor includes a processing target region, a spiral groove, and a reverse spiral groove intersecting with the spiral groove at at least one point. The processing target region has a first end closer to a bottom face of the cylindrical shape and second end closer to a top face side of the cylindrical shape. At least one turn of the spiral groove surrounds an outer circumferential surface in the processing target region. The reverse spiral groove surrounds the outer circumferential surface in the processing target region in a direction reverse to that of the spiral groove.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 6, 2022
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Motohiro Morishita, Satoru Murao, Munetada Satou, Ryutaro Ishida
  • Patent number: 11437879
    Abstract: A bus-bar unit includes bus-bars and a bus-bar holder supporting the bus-bars. The bus-bar includes a first and a second bus-bar piece, including a plate. The first bus-bar piece includes a coil wire connecting portion connected to a coil wire drawn from a stator, and a first junction terminal joined to the second bus-bar piece. The second bus-bar piece includes an external connection terminal connected to an external device, a second junction terminal joined to the first bus-bar piece, and a second piece main body connecting them. The second piece main body has a first extension extending from the external connection terminal along a direction perpendicular or substantially perpendicular to the axial direction, a second extension extending from the second junction terminal along a direction perpendicular or substantially perpendicular to the axial direction, and a crank portion located between them and bent in a crank shape in a plate thickness direction.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: September 6, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Masanori Yoshikawa, Yusaku Yoshida, Hideo Fujiwara, Takashi Seguchi, Kosuke Ogawa
  • Patent number: 11431220
    Abstract: A motor assembly includes a motor, a housing that houses the motor, an inverter that is electrically connected to the motor, an inverter case that houses the inverter and is provided integrally with the housing, a wire harness including a first connector electrically connected to a connector positioned on a side surface of the inverter case, a second connector electrically connected to a connector of the housing, and an electric wire electrically connecting the first connector and the second connector, and a side connector cover provided over the side surface of the inverter case, covering the first connector laterally.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 30, 2022
    Assignees: NIDEC CORPORATION, NIDEC TOSOK CORPORATION
    Inventors: Shuhei Nakamatsu, Keisuke Fukunaga, Naohiro Wada, Masumi Mizutani