Patents by Inventor Qing-Bin Luo
Qing-Bin Luo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10637334Abstract: A printed circuit board includes a body, a first conductive pattern layer disposed on a first surface of the body, and a second conductive pattern layer disposed on a second surface of the body. The first conductive pattern layer and the second conductive pattern layer form a capacitor. The present disclosure further provides an motor having the printed circuit board.Type: GrantFiled: May 17, 2017Date of Patent: April 28, 2020Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Qing Bin Luo, Chi Wai Lai, Wen Ming Wu
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Patent number: 10483829Abstract: A brush assembly includes a circuit board, at least two brushes, power connecting terminals for connecting with an external power supply, and a power supply branch circuit connected in series between a corresponding one of the power connecting terminals and a corresponding one of the brushes. The brush assembly further comprises an EMI suppressor connected between the power supply branch circuit and ground. The EMI suppressor is an axial capacitor formed by a conductor core, a cover, and a filling medium. The cover is attached around the conductor core, and the filling medium is filled between the conductor core and the cover. A motor utilizing the brush assembly is also provided.Type: GrantFiled: March 2, 2017Date of Patent: November 19, 2019Assignee: Johnson Electric International AGInventors: Qing Bin Luo, Chi Wai Lai, Xin Peng Wei, Gui Hong Tian, Bo Hu, Xiao Lin Ren, Wen Ming Wu
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Patent number: 10277098Abstract: An end cap assembly for an electric motor has a brush assembly, a circuit board, an inductor and a grounded metal element. The brush assembly has a plurality of brushes. The circuit board is fixed relative to the brush assembly. The inductor is electrically connected to the circuit board. The grounded metal element is positioned between the brushes and the inductor to absorb high frequency electromagnetic radiation transmitted from the brushes to the inductor.Type: GrantFiled: August 6, 2015Date of Patent: April 30, 2019Assignee: Johnson Electric International AGInventors: Chi Wai Lai, Qing Bin Luo, Gong Wu Xu, Xin Peng Wei, Xiao Lin Ren, Gui Hong Tian, Hong Wei Zhang, Xia Han
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Patent number: 10069381Abstract: An electric motor includes a stator and a rotor. The stator includes a motor housing with an open end and an end cover mounted to the open end. The rotor includes a rotor shaft that extends through the end cover. The end cover includes a bearing that supports the rotor shaft. The rotor shaft and motor housing are made of an electrically conductive material and are electrically connected with each other. The motor housing, end cover, bearing and rotor shaft cooperatively form an electromagnetic shield suppressing electromagnetic interference generated by the motor. Optionally, the rotor shaft drives a coaxial worm shaft of a gearbox by an insulating member, which further suppresses electromagnetic interference.Type: GrantFiled: June 9, 2015Date of Patent: September 4, 2018Assignee: JOHNSON ELECTRIC S.AInventors: Qing Bin Luo, James Ching Sik Lau, Wen Ming Wu, Gui Hong Tian, Xin Peng Wei, Wing Cheung Lam, Qiang Xu, Zhong Hai Chen
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Patent number: 9935414Abstract: A commutator has a conductive layer, a segment layer and an insulating layer separating the conductive layer and the segment layer. The segment layer includes multiple commutator segments. A mounting hole is defined along an axis of the commutator passing through the conductive layer. The three-layer structure of the commutator forms a capacitor having an increased confronting area and reduced inter-plate distance. The capacitor thus has a greater capacitance and hence greater EMI absorbing capability, making it possible to reduce EMI emissions without additional EMI reduction components outside the commutator. A rotor and a motor employing the commutator are also disclosed.Type: GrantFiled: December 11, 2015Date of Patent: April 3, 2018Assignee: JOHNSON ELECTRIC S.A.Inventors: Qing Bin Luo, Chi Wai Lai, Wen Ming Wu, Zhao Sen Meng, Xiao Lin Ren, Xian Xue Ao, Bei Bei He, Hong Jiang Zhao, Ying Song Ye
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Publication number: 20170338722Abstract: A printed circuit board includes a body, a first conductive pattern layer disposed on a first surface of the body, and a second conductive pattern layer disposed on a second surface of the body. The first conductive pattern layer and the second conductive pattern layer form a capacitor. The present disclosure further provides an motor having the printed circuit board.Type: ApplicationFiled: May 17, 2017Publication date: November 23, 2017Inventors: Qing Bin LUO, Chi Wai LAI, Wen Ming WU
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Publication number: 20170257009Abstract: A brush assembly includes a circuit board, at least two brushes, power connecting terminals for connecting with an external power supply, and a power supply branch circuit connected in series between a corresponding one of the power connecting terminals and a corresponding one of the brushes. The brush assembly further comprises an EMI suppressor connected between the power supply branch circuit and ground. The EMI suppressor is an axial capacitor formed by a conductor core, a cover, and a filling medium. The cover is attached around the conductor core, and the filling medium is filled between the conductor core and the cover. A motor utilizing the brush assembly is also provided.Type: ApplicationFiled: March 2, 2017Publication date: September 7, 2017Inventors: Qing Bin LUO, Chi Wai LAI, Xin Peng WEI, Gui Hong TIAN, Bo HU, Xiao Lin REN, Wen Ming WU
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Publication number: 20170207687Abstract: An end cap assembly includes an end cap. The end cap includes an end wall, a sidewall, and a shielding member. The sidewall projects from one side of the end wall. The sidewall defines a cutout for allowing two conducting wires to pass therethrough, and the two conducting wires connect components mounted within the end cap to an external power source. The shielding member is disposed in the cutout. The end cap assembly provides enhanced EMI suppression. In addition, the present invention also provides a motor employing the end cap assembly.Type: ApplicationFiled: January 17, 2017Publication date: July 20, 2017Inventors: Qing Bin LUO, Chi Wai LAI, Wen Ming WU, Bo HU, Xiao Lin REN
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Patent number: 9537377Abstract: A motor assembly for a window lift mechanism has a motor and a gearbox. The motor includes a stator having a metal housing, and a rotor with a commutator, rotatably received in the housing. An end cap assembly is connected to the housing. The end cap assembly includes a plurality of brushes making sliding contact with the commutator, a plurality of connecting pieces for connecting an external power source, inductors connected between the brushes and the connecting pieces, and shielding layers cladding the inductors and electrically connected to the housing.Type: GrantFiled: April 29, 2013Date of Patent: January 3, 2017Assignee: JOHNSON ELECTRIC S.A.Inventors: Qing Bin Luo, Zhao Sen Meng, Wen Ming Wu, Wing Cheung Lam, Qiang Xu, Da Xuan Zhan
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Publication number: 20160172810Abstract: A commutator has a conductive layer, a segment layer and an insulatim layer separating the conductive layer and the segment layer. The segment layer includes multiple commutator segments. A mounting hole is defined along an axis of the commutator passing through the conductive layer. The three-layer structure of the commutator forms a capacitor having an increased confronting area and reduced inter-plate distance. The capacitor thus has a greater capacitance and hence greater EMI absorbing capability, making it possible to reduce EMI emissions without additional EMI reduction components outside the commutator. A rotor and a motor employing the commutator are also disclosed.Type: ApplicationFiled: December 11, 2015Publication date: June 16, 2016Inventors: QING BIN LUO, CHI WAI LAI, WEN MING WU, ZHAO SEN MENG, XIAO LIN REN, XIAN XUE AO, BEI BEI HE, HONG JIANG ZHAO, YING SONG YE
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Publication number: 20160043618Abstract: An end cap assembly for an electric motor has a brush assembly, a circuit board, an inductor and a grounded metal element. The brush assembly has a plurality of brushes. The circuit board is fixed relative to the brush assembly. The inductor is electrically connected to the circuit board. The grounded metal element is positioned between the brushes and the inductor to absorb high frequency electromagnetic radiation transmitted from the brushes to the inductor.Type: ApplicationFiled: August 6, 2015Publication date: February 11, 2016Inventors: Chi Wai LAI, Qing Bin LUO, Gong Wu XU, Xin Peng WEI, Xiao Lin REN, Gui Hong TIAN, Hong Wei ZHANG, Xia HAN
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Publication number: 20150357884Abstract: An electric motor includes a stator and a rotor. The stator includes a motor housing with an open end and an end cover mounted to the open end. The rotor includes a rotor shaft that extends through the end cover. The end cover includes a bearing that supports the rotor shaft. The rotor shaft and motor housing are made of an electrically conductive material and are electrically connected with each other. The motor housing, end cover, bearing and rotor shaft cooperatively form an electromagnetic shield suppressing electromagnetic interference generated by the motor. Optionally, the rotor shaft drives a coaxial worm shaft of a gearbox by an insulating member, which further suppresses electromagnetic interference.Type: ApplicationFiled: June 9, 2015Publication date: December 10, 2015Inventors: Qing Bin LUO, James Ching Sik LAU, Wen Ming WU, Gui Hong TIAN, Xin Peng WEI, Wing Cheung LAM, Qiang XU, Zhong Hai CHEN
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Publication number: 20150318766Abstract: A motor includes motor terminals for connecting with an external power supply and an internal circuit connected to the motor terminals. The motor further includes a RF filter. The RF filter includes a conductive wire coiled in either a helical manner or a spiral manner. Terminals of the conductive wire at opposite axial ends of the coil are connected to a corresponding one of the motor terminals and the internal circuit, respectively. The intensity of the electromagnetic waves radiated from most parts of the conductive wire of the RF filter is attenuated by reflected electromagnetic waves from other parts of the conductive wire. Therefore, the intensity of the electromagnetic wave radiated from the motor is greatly reduced. A RF filter for the motor is also provided.Type: ApplicationFiled: April 30, 2015Publication date: November 5, 2015Inventors: Qing Bin LUO, Chi Wai LAI, Xiao Lin REN, Gui Hong TIAN, Xin Peng WEI
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Publication number: 20070146215Abstract: A shielding apparatus of a notebook computer includes an antenna, a control unit, a cable connected between the antenna and the control unit, a first ground unit connected to a shielding layer of the cable located in a first terminal between the cable and the control unit, and a second ground unit connected to the shielding layer of the cable neighboring a second terminal between the antenna and the cable.Type: ApplicationFiled: September 27, 2006Publication date: June 28, 2007Applicant: HON HAI Precision Industry CO., LTD.Inventors: Bo Peng, Qing-Bin Luo
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Publication number: 20070093135Abstract: An exemplary enclosure includes a housing to enclose a motherboard therein. The motherboard has a USB connector mounted thereon. The housing includes a front panel and a bottom plate. The front panel has a USB plug mounted thereon. A cable shield is formed on the bottom plate. A cable passing through the cable shield connects the USB plug and the USB connector. The cable shield is provided between the cables and components on the motherboard, EMI caused by the cable won't negatively influence operation of the components on the motherboard.Type: ApplicationFiled: August 4, 2006Publication date: April 26, 2007Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Qing-Bin Luo, Chin-Yu Huang