Patents Examined by Quyen Leung
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Patent number: 9742255Abstract: An apparatus comprising: a permanent magnet providing magnetic flux; an electric field generator comprising at least one conductive loop and high permeability material configured to direct magnetic flux preferentially through the at least one conductive loop adjacent a first portion of a length of the at least one conductive loop; and a supporting system configured to support the permanent magnet at a distance from the electric field generator and enable relative movement between the permanent magnet and the electric field generator. A corresponding method.Type: GrantFiled: August 19, 2014Date of Patent: August 22, 2017Assignee: Nokia Technologies OyInventor: Ari Immonen
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Patent number: 9742234Abstract: A centralized power distribution member A for motor arranged on the outer periphery of a stator S of a motor and configured to feed power to windings of the stator S includes a plurality of annular busbars 10 each including a power feeding terminal 20 and connection terminals 15 to the windings on one side edge, an annular holder 30 made of synthetic resin and configured to accommodate the busbars 10 laminated in a radial direction in a mutually insulated manner, and a power feeding unit 70 arranged near a predetermined position in a circumferential direction and individually connected to the power feeding terminal 20 of each busbar 10 and power supply side terminals drawn out from a power supply side. The power feeding unit 70 is arranged on an end surface side of the stator S where the power feeding terminals 20 and the connection terminals 15 are arranged.Type: GrantFiled: January 31, 2014Date of Patent: August 22, 2017Assignees: Sumitomo Wiring Systems, Ltd., Mitsubishi Heavy Industries, Ltd.Inventors: Tsutomu Hashimoto, Satoshi Fukahori
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Patent number: 9742247Abstract: An electric motor for driving a motor vehicle component, such as a fan motor for cooling cooling water, has a thermal fuse with a contact spring. The contact spring has attached ends that are connected to a conducting path section between which an interruption point is formed. The springy ends of the contact spring are in soldered contact with each other in a spring-biased manner. The thermal fuse is a fuse module with a plastic support in which the conducting path sections are partially embedded in such a way that the contact spring lies in a window opening in the support. Terminals of the conducting path sections protrude from the plastic support.Type: GrantFiled: November 26, 2014Date of Patent: August 22, 2017Assignee: Brose Fahzeugteile GmbH & Co. Kommanditgesellschaft, WuerzburgInventors: Rainer Schoele, Frank Hartmann, Peter Stockmann, Frank Capristo, III
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Patent number: 9726252Abstract: A vibration dampening brace for a motor enables altering the stiffness and reed critical frequency of a combined system of the motor and driven equipment without removal of the motor from a motor stand or support structure. The vibration dampening brace includes a first member configured to engage a portion of a housing of an electrical motor and a second member operatively connected to the first member to stiffen the bending moment of the electrical motor housing, resulting in the housing moving less with the vibrations generated by the combined system of the motor and the driven equipment. The vibration dampening brace alters the RCF of the motor system by a predetermined amount to modify the RCF of the combined system and ensure that the RCF of the combined system is outside a range of vibration frequencies that would amplify the motor vibrations.Type: GrantFiled: December 11, 2013Date of Patent: August 8, 2017Assignee: Nidec Motor CorporationInventors: David M. Lyle, Timothy J. Druhe
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Patent number: 9729034Abstract: A rotor with a two-step shaped slot may include a rotor core configured to include a plurality of shoe structures which have a two-step shaped slot, a plurality of rotor bars configured to be inserted into and coupled to the two-step shaped slot, and end rings configured to be coupled to both ends of the rotor core and to fix the rotor bars.Type: GrantFiled: October 7, 2014Date of Patent: August 8, 2017Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Daesung Jung
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Patent number: 9721692Abstract: A system and method for generating electricity by combining a fuel core and a drive regulation and containment system, the fuel core having a plurality of radioactive isotopes disposed between a plurality of crystalline lattices, and the drive regulation and containment system having a plurality of electromagnets that concentrate charged particles generated in the fuel core from the plurality of radioactive isotopes, and an electric field generated by an electron flow initiation system for driving the charged particles through the fuel core to create a current flow.Type: GrantFiled: May 24, 2013Date of Patent: August 1, 2017Inventor: Denton Jarvis
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Patent number: 9712093Abstract: A device and a method for inhibiting vibration of a superconducting magnetic suspension rotor. The device comprises a rotor cavity housing, lateral coils, a superconducting rotor with a rotor top plane, a copper plate, pole shoes, a z-axial vibration measuring sensor, an x-axial vibration measuring sensor, a y-axial vibration measuring sensor, and a copper ring, the pole shoes having a spherical inner surface and being arranged symmetrically up and down so as to form a rotor cavity; the annular lateral coils being closely adjacent to an outside cylindrical surface of the rotor cavity housing and fixed to the same; the z-axial vibration measuring sensor being fixed to a central region of the copper plate; the x-axial vibration measuring sensor being mounted along an x-coordinate axis and the y-axial vibration measuring sensor mounted on a on the copper ring which is mounted along an equatorial plane of the rotor.Type: GrantFiled: August 26, 2011Date of Patent: July 18, 2017Assignee: Institute of Electrical Engineering, Chinese Academy of SciencesInventors: Xinning Hu, Qiuliang Wang, Chunyan Cui, Hui Wang
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Patent number: 9705384Abstract: A rotor is provided for a rotating electric machine. The rotor includes a magnetic pole core and a cooling fan. The cooling fan includes a base plate laser-welded to an axial end face of the magnetic pole core and a plurality of fan blades extending from the base plate. Further, in the rotor, a weld formed between the base plate of the cooling fan and the magnetic pole core has a pair of open ends.Type: GrantFiled: June 5, 2014Date of Patent: July 11, 2017Assignee: DENSO CORPORATIONInventors: Hiroo Kaizu, Seiji Kondoh, Shigenobu Nakamura
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Patent number: 9705272Abstract: A restricting member is provided that is in contact with respective bent lead portions of a long-sized lead and a short-sized lead and imparts a tension to linear lead portions thereof in a mold for insert molding. The restricting member reliably prevents the leads from displacement and deformation resulting from the pressure of the resin at the time of insert molding, and allows the long-sized lead and the short-sized lead to be disposed at proper positions in a molded body.Type: GrantFiled: August 19, 2014Date of Patent: July 11, 2017Assignee: Mitsubishi Electric CorporationInventors: Masayuki Sakaguchi, Shintaro Shimizu
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Patent number: 9664232Abstract: A generator assembly may include a bearing liner and a bearing retainer configured to reduce vibration response in a bearing assembly under high frequency operation of a rotor. The bearing liner may be configured to provide a clearance between the bearing assembly and an adjacent housing/bearing liner to prevent high vibration output from the bearing assembly on for example, the rotor shaft. The bearing retainer may include a recess to accommodate axial movement of the bearing assembly in response to rotation of the rotor. In some embodiments, the bearing retainer may include a dampener to dampen contact of the bearing assembly with the retainer.Type: GrantFiled: July 18, 2013Date of Patent: May 30, 2017Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Balwinder Singh Birdi, Simon Waddell, William Scherzinger, David Windish, Robert Cisneroz
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Patent number: 9647509Abstract: A surface of a plate (102) having a predetermined thickness is used as a cooling surface (101). A pair of cooling medium entrance and exit (111, 112) are provided on one end surface (102a). First and second cooling medium flow paths (131, 132), a cooling medium branch path (121) communicating with the cooling medium entrance (111) and used for dividing cooling medium to flow into the cooling medium flow paths (131, 132), and a cooling medium merging path (122) at which the cooling media flowing from the exits of the cooling medium flow paths (131, 132) merge, are formed on a surface opposite to the cooling surface (101).Type: GrantFiled: July 19, 2011Date of Patent: May 9, 2017Assignee: Mitsubishi Electric CorporationInventors: Yasushige Mukunoki, Takaharu Suzuki, Hidehito Yamauchi
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Patent number: 9627943Abstract: A motor cooling structure for cooling a motor, which includes a shaft transmitting power and a rotor core attached to an outside of the shaft, by a cooling medium, includes: a cooling medium supply passage that extends to an inside of the shaft in an axial direction of the shaft and passes the cooling medium through the cooling medium supply passage; and a plurality of cooling medium passages that are branched from the cooling medium supply passage to cool the rotor core while flowing the cooling medium without branching the cooling medium in the axial direction and then eject the cooling medium from a plurality of ejection holes opened to a surface of the rotor core, wherein distances from a cooling medium inlet, through which the cooling medium flows into the cooling medium supply passage, to the respective ejection holes are equal between the plurality of cooling medium passages.Type: GrantFiled: March 1, 2012Date of Patent: April 18, 2017Assignee: Komatsu Ltd.Inventors: Hiroyuki Tokunaga, Akira Okabe, Kazuhiro Okamoto, Teiichirou Chiba, Natsuki Watanabe
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Patent number: 9614419Abstract: An actuator includes a DC motor having two terminals to be fed with DC power, an output gear driven by the DC motor, a potentiometer having an arc resistive element with two ends and an electrically conductive wiper that moves along the resistive element, and two diodes. The wiper rotates with the output gear to provide a signal indicative of the rotational position of the output gear. The anodes of the two diodes are both electrically connected to one end of the resistive element, and the cathodes of the two diodes are electrically connected to the two terminals of the motor respectively.Type: GrantFiled: June 5, 2014Date of Patent: April 4, 2017Assignee: JOHNSON ELECTRIC S.A.Inventor: Tanh Minh Bui
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Patent number: 9614417Abstract: According to an aspect of the present invention, an axial flux permanent magnet motor includes: a stator assembly configured to produce magnetic flux in a rotating axis direction; and a housing assembly including a motor housing in which the stator assembly is accommodated, in which a first cooling groove is formed in an inner circumferential surface of the motor housing to be predeterminedly and circumferentially extended, a second cooling groove, which corresponds to the first cooling groove, is formed in an outer circumferential surface of the stator assembly so as to be predeterminedly and circumferentially extended, and the first and second cooling grooves meet together to form a cooling flow path for a flow of a coolant.Type: GrantFiled: August 22, 2013Date of Patent: April 4, 2017Assignee: Hyundai Mobis Co., Ltd.Inventor: Sang Han Lee
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Patent number: 9614422Abstract: In an electric motor apparatus including an electric motor (13), a speed-reduction mechanism (14) which transmits motive power of the electric motor (13), a housing (15) which accommodates the speed-reduction mechanism (14) and the electric motor (13), and a yoke (16a) fixed to an outer portion of the housing (15), the housing (15) is provided with a concave portion (21), a holding hole (18a), and an accommodation chamber (15a). A connector unit (25) is moved along the first direction and installed to a concave portion (21). A brush holder (26) is moved along the second direction and installed to the holding hole (18a). The speed-reduction mechanism (14) is moved along the first direction and accommodated in the accommodation chamber (15a). The yoke (16a) is moved along the second direction and fixed to the housing (15). Therefore, no restriction is imposed on the routing of an external connector connected to the connector unit (25).Type: GrantFiled: October 31, 2012Date of Patent: April 4, 2017Assignee: Mitsuba CorporationInventors: Kenji Yasumoto, Teppei Tokizaki, Shigeki Ota
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Patent number: 9601952Abstract: A magnet embedded rotor configured to provide an improved magnetization ratio of the field permanent magnets is provided. The magnet embedded rotor includes a first annular core in which first permanent magnets are embedded, and a second annular core in which second permanent magnets, which are independent from the first permanent magnets, are embedded. The magnet embedded rotor has a structure in which the second annular core is fitted onto the outer periphery of the first annular core. The first permanent magnets and the second permanent magnets constitute field permanent magnets.Type: GrantFiled: February 6, 2014Date of Patent: March 21, 2017Assignee: JTEKT CORPORATIONInventors: Hiroshi Yoshikawa, Akira Hiramitsu
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Patent number: 9601959Abstract: A coil end of a coil is insulated from a stator core by a molded member made of an insulating resin, and the coil, which is positioned in a slot, is insulated by insulating paper. In an armature of a rotating electrical machine, the molded member is divided into a first member and a second member that are rotatably coupled to each other by a hinge.Type: GrantFiled: March 22, 2012Date of Patent: March 21, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yutaro Shirai, Shinichiro Yoshida, Hironori Tsuiki
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Patent number: 9586233Abstract: A capacitive micromachined ultrasonic transducer (CMUT) is provided that includes a substrate, a bottom conductive layer disposed on a bottom surface of the substrate, a cavity disposed into a top surface of the substrate, a nonconductive layer disposed on the substrate top surface and on the cavity, a CMUT plate disposed on the nonconductive layer and across the cavity, a top conductive layer disposed on a top surface of the CMUT plate, a pressure control via that spans from the cavity to an ambient environment, and an active pressure controller connected to the pressure control via, wherein the active pressure controller is capable of actively varying a pressure differential across the CMUT plate.Type: GrantFiled: December 9, 2013Date of Patent: March 7, 2017Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Nikhil Apte, Butrus T. Khuri-Yakub, Kwan Kyu Park
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Patent number: 9590535Abstract: A thermionic energy converter is provided that includes an anode, a cathode, where the anode is disposed opposite the cathode, and a suspension, where a first end of the suspension is connected to the cathode and a second end of the suspension is connected to the anode, where the suspension moveably supports the cathode above the anode to form a variable gap between the anode and the cathode, where the variable gap is capable of enabling a variable thermionic current between the anode and the cathode, where the thermionic converter is capable of an AC power output.Type: GrantFiled: July 17, 2013Date of Patent: March 7, 2017Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Igor Bargatin, Roger T. Howe
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Patent number: 9590466Abstract: A rotor for a rotating electric machine has a core body and a magnet. The core body has a through-hole, a first polar portion, and a second polar portion. The first polar portion and the second polar portion are alternately arranged in the circumference direction. The magnet is disposed on the core body at a position corresponding to the first polar portion or the second polar portion. The through-hole has an arc-shaped surface having a first curvature radius. The first polar portion has an arc-shaped surface having a second curvature radius. The second polar portion has an arc-shaped surface having a third curvature radius. The first curvature radius is larger than or equal to the second curvature radius. The first curvature radius is larger than or equal to the third curvature radius.Type: GrantFiled: October 30, 2013Date of Patent: March 7, 2017Assignee: DENSO CORPORATIONInventor: Akihito Naitou