Patents by Inventor RuiFeng Qin
RuiFeng Qin 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: 11139706Abstract: An electric motor and a rotor thereof are provided. The rotor includes a shaft and at least one rotating body fixed to the shaft. The rotating body includes a rotor core and a plurality of permanent magnets. An outer periphery of the rotor core has a plurality of spaced slots, each of which extends along an axial direction of the rotor. The rotating body further includes a plurality of axial arms molded to the corresponding slots and configured to fix the permanent magnets. Every two adjacent axial arms form an accommodation therebetween, and each permanent magnet is fixed to a corresponding accommodation.Type: GrantFiled: May 23, 2019Date of Patent: October 5, 2021Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Ruifeng Qin, Ning Sun, Fang Zhang
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Patent number: 11113886Abstract: The present disclosure proposes a dual-screen display method for eliminating AR/VR picture tearing and an AR/VR display device, each single screen in a dual-screen for the dual-screen display method being divided into a first half-screen and a second half-screen respectively. The method includes: performing rendering and scanning in parallel for the first half-screen and the second half-screen in unit of half a frame. A start time of scanning the second half-screen is adjusted to eliminate a picture tearing phenomenon.Type: GrantFiled: April 15, 2019Date of Patent: September 7, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bin Zhao, Lixin Wang, Xi Li, Jianwen Suo, Qingwen Fan, Jinbao Peng, Ruifeng Qin, Yuanjie Lu, Jinghua Miao, Yukun Sun, Xuefeng Wang, Wenyu Li, Lili Chen, Hao Zhang
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Patent number: 10985623Abstract: An electric motor and a rotor thereof are provided. The rotor includes a shaft, a housing, a rotor core fixed to the shaft and received in the housing, and a plurality of permanent magnets placed between an outer surface of the rotor core and an inner surface of the housing. The housing includes a metal skeleton and a holding frame integral with and molded to the metal skeleton.Type: GrantFiled: July 19, 2019Date of Patent: April 20, 2021Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Fang Zhang, Ruifeng Qin, Ning Sun
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Patent number: 10944343Abstract: An actuator for a cooling fan module includes a controller, a first motor and a second motor. The controller includes a controlling unit configured to receive control commands, and a motor driving unit electrically connected to the controlling unit and powered by a DC power supply. The first motor is electrically connected to the motor driving unit. The second motor is connected in parallel to the first motor. The first motor and the second motor are synchronously driven and controlled by the controller.Type: GrantFiled: July 11, 2019Date of Patent: March 9, 2021Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Ruifeng Qin, Kwokkuen Tse, Tao Qu
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Publication number: 20200098183Abstract: The present disclosure proposes a dual-screen display method for eliminating AR/VR picture tearing and an AR/VR display device, each single screen in a dual-screen for the dual-screen display method being divided into a first half-screen and a second half-screen respectively. The method includes: performing rendering and scanning in parallel for the first half-screen and the second half-screen in unit of half a frame. A start time of scanning the second half-screen is adjusted to eliminate a picture tearing phenomenon.Type: ApplicationFiled: April 15, 2019Publication date: March 26, 2020Inventors: Bin Zhao, Lixin Wang, Xi Li, Jianwen Suo, Qingwen Fan, Jinbao Peng, Ruifeng Qin, Yuanjie Lu, Jinghua Miao, Yukun Sun, Xuefeng Wang, Wenyu Li, Lili Chen, Hao Zhang
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Publication number: 20200072224Abstract: An electric coolant pump includes a pump house, a motor connected to the pump house, and an impeller housed in the pump house and driven by the motor. The motor includes a stator and a movable unit rotatably mounted within the stator. The stator is provided with a central shaft. The movable unit includes a support body, a bearing assembly fixedly embedded in the support body, a rotor core fixed to the support body, and a plurality of permanent magnets attached to the rotor core. The bearing assembly includes at least one bearing rotatably sleeved on the central shaft. The support body is formed by an injection-molding process to wrap the bearing assembly and fixed connecting bearing assembly and the rotor core.Type: ApplicationFiled: August 28, 2019Publication date: March 5, 2020Inventors: Guoyuan ZOU, Hongliang ZHANG, Daigang LI, Anbang CHEN, Ruifeng QIN, Guanyin LIANG
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Publication number: 20200058257Abstract: A current compensation circuit, a virtual reality device and a control method are disclosed. The current compensation circuit includes: a first constant current sub-circuit, configured to generate a driving current of a backlight module; a second constant current sub-circuit, configured to generate a compensation current of the backlight module; a compensation gating sub-circuit, configured to determine whether to select the second constant current sub-circuit to supply power to the backlight module; and a black insertion control signal generation sub-circuit, configured to generate a black insertion control signal, connected with the first constant current sub-circuit and the compensation gating sub-circuit, and configured to control, by the black insertion control signal, the first constant current sub-circuit and the second constant current sub-circuit to simultaneously supply power to or power off the backlight module, so that the black light module realizes a backlight black insertion.Type: ApplicationFiled: April 4, 2019Publication date: February 20, 2020Applicants: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Feng Pan, Hao Zhang, Lili Chen, Jian Sun, Yakun Wang, Yuanyuan Du, Jinghua Miao, Yu Lei, Xinjian Liu, Ziqiang Guo, Bin Zhao, Ruifeng Qin, Feng Zi
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Publication number: 20200028392Abstract: An electric motor and a rotor thereof are provided. The rotor includes a shaft, a housing, a rotor core fixed to the shaft and received in the housing, and a plurality of permanent magnets placed between an outer surface of the rotor core and an inner surface of the housing. The housing comprises a metal skeleton and a holding frame integral with and molded to the metal skeleton.Type: ApplicationFiled: July 19, 2019Publication date: January 23, 2020Inventors: Fang ZHANG, Ruifeng QIN QIN, Ning SUN
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Patent number: 10539431Abstract: A resolver which includes a resolver rotor and a resolver stator. The resolver stator includes a resolver stator core, a winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket. The winding bracket includes an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector. The connector includes a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals. The cover abuts against the lead wires to secure the lead wires to connector.Type: GrantFiled: December 6, 2017Date of Patent: January 21, 2020Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Xing Liu, Chengshun Du, Ning Sun, Ruifeng Qin, Yanbin Li
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Publication number: 20200021211Abstract: An actuator for a cooling fan module includes a controller, a first motor and a second motor. The controller includes a controlling unit configured to receive control commands, and a motor driving unit electrically connected to the controlling unit and powered by a DC power supply. The first motor is electrically connected to the motor driving unit. The second motor is connected in parallel to the first motor. The first motor and the second motor are synchronously driven and controlled by the controller.Type: ApplicationFiled: July 11, 2019Publication date: January 16, 2020Inventors: Ruifeng QIN, Kwokkuen TSE, Tao QU
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Publication number: 20190363594Abstract: An electric motor and a rotor thereof are provided. The rotor includes a shaft and at least one rotating body fixed to the shaft. The rotating body includes a rotor core and a plurality of permanent magnets. An outer periphery of the rotor core has a plurality of spaced slots, each of which extends along an axial direction of the rotor. The rotating body further includes a plurality of axial arms molded to the corresponding slots and configured to fix the permanent magnets. Every two adjacent axial arms form an accommodation therebetween, and each permanent magnet is fixed to a corresponding accommodation.Type: ApplicationFiled: May 23, 2019Publication date: November 28, 2019Inventors: Ruifeng QIN, Ning SUN, Fang ZHANG
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Publication number: 20190311181Abstract: Disclosed is face tracking method and device. The method includes: acquiring an initial facial image in a to-be-tracked picture; performing binarization processing on the initial facial image according to a standard range of color parameter and an actual value of the color parameter of each pixel in the initial facial image, to obtain a binarized facial image; acquiring a position of a preset organ in the binarized facial image; and acquiring a position of a final facial image according to the position of the preset organ and a position of the initial facial image.Type: ApplicationFiled: January 4, 2019Publication date: October 10, 2019Inventors: Minglei CHU, Hao ZHANG, Lili CHEN, Jian SUN, Ziqiang GUO, Guixin YAN, Jiankang SUN, Xi LI, Yinwei CHEN, Ruifeng QIN, Yuanjie LU
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Publication number: 20180291796Abstract: A cooling fan module for heat dissipation of an automobile engine is provided. The cooling fan module includes a fan assembly and a brush motor for driving the fan assembly. The brush motor includes a stator having a housing and a plurality of permanent magnets fixed onto an inner wall of the housing, and a rotor including a shaft, a rotor core including a plurality of winding slots evenly distributed on a periphery of the rotor core, and a winding wound around the rotor core. The number of the permanent magnets is four, and the number of the winding slots is twenty-two, to make the brush motor have a small noise, and a long life.Type: ApplicationFiled: January 15, 2018Publication date: October 11, 2018Inventors: Ruifeng QIN, Xinhui GUAN, Jiyu LIANG
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Publication number: 20180156638Abstract: A resolver which includes a resolver rotor and a resolver stator. The resolver stator includes a resolver stator core, a winding bracket mounted on the resolver stator core, and a plurality of resolver windings wound on the winding bracket. The winding bracket includes an annular portion surrounding the resolver rotor, a connector extending outwardly from the annular portion, and a cover mounted on the connector. The connector includes a plurality of conductive terminals connecting both the resolver winding and lead wires, and a body receiving the conductive terminals. The cover abuts against the lead wires to secure the lead wires to connector.Type: ApplicationFiled: December 6, 2017Publication date: June 7, 2018Inventors: Xing LIU, Chengshun DU, Ning SUN, Ruifeng QIN, Yanbin LI
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Patent number: 9967824Abstract: Provided are a mobile terminal management method, a mobile terminal management system, and a mobile terminal. Said mobile terminal management method comprises: acquiring a desired endurance time length; predicting an endurance time length according to a current power consumption rate and a current state of charge of a battery; judging whether a power consumption rate needs to be reduced according to the desired endurance time length and the predicted endurance time length; when it is judged that the power consumption rate needs to be reduced, determining a power consumption reducing scheme according to the desired endurance time length and the predicted endurance time length; and managing a mobile terminal according to the determined power consumption reducing scheme. In this disclosure, the user can set a desired endurance time length; using requirements of the user on the mobile terminal are satisfied as much as possible while saving power.Type: GrantFiled: September 14, 2016Date of Patent: May 8, 2018Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.Inventors: Jinghua Miao, Lili Chen, Xue Dong, Wei Sun, Mubing Li, Jianjie Wu, Ruifeng Qin, Bin Zhao
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Patent number: 9721743Abstract: A fuse component (36) configured to provide overcurrent protection for an electric motor (20) comprises a spiral (41) of a plurality of coaxial wire loops (44) and an outer insulating sleeve (39) surrounding at least a portion of the spiral (41). The overcurrent threshold of the fuse component (36) may be adjusted by changing the number of loops in the spiral (41) or the cross-section area of the wire in the spiral (41). The fuse component (41) may also function as an inductor (35) and/or connected to a speed adjustable resistor.Type: GrantFiled: September 3, 2013Date of Patent: August 1, 2017Assignee: Johnson Electric S.A.Inventors: Ruifeng Qin, Xinhui Guan, Tao Qu, Zhong Wan
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Publication number: 20170195969Abstract: Provided are a mobile terminal management method, a mobile terminal management system, and a mobile terminal. Said mobile terminal management method comprises: acquiring a desired endurance time length; predicting an endurance time length according to a current power consumption rate and a current state of charge of a battery; judging whether a power consumption rate needs to be reduced according to the desired endurance time length and the predicted endurance time length; when it is judged that the power consumption rate needs to be reduced, determining a power consumption reducing scheme according to the desired endurance time length and the predicted endurance time length; and managing a mobile terminal according to the determined power consumption reducing scheme. In this disclosure, the user can set a desired endurance time length; using requirements of the user on the mobile terminal are satisfied as much as possible while saving power.Type: ApplicationFiled: September 14, 2016Publication date: July 6, 2017Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Jinghua MIAO, Lili CHEN, Xue DONG, Wei SUN, Mubing LI, Jianjie WU, Ruifeng QIN, Bin ZHAO
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Patent number: 9108616Abstract: A motor (21) includes a stator (30) and a rotor (40). The stator includes a housing (31) accommodating magnet(s) (32) and including multiple sidewalls (33) and connecting portions (34) adjoining neighboring sidewalls. A sidewall includes zero or more flat segment (35, 38) and zero or more curved segments (38, 36) having one or more radii. A connecting portion includes a substantially flat segment or a curved segment having one or more radii and adjoins two neighboring sidewalls. A torque transmitting device (15) includes the motor and a clutch (22) actuated by the motor to transmit or cease transmitting engine (11) output to driven mechanism(s) (17, 18, 12, 13, 14). A powertrain includes the torque transmitting device to switch between drive modes with the torque transmitting device to engage or disengage engine output with axles.Type: GrantFiled: November 6, 2013Date of Patent: August 18, 2015Assignee: JOHNSON ELECTRIC S.A.Inventors: Ruifeng Qin, Chengshun Du, Linan Li, Fayun Qi
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Publication number: 20140128216Abstract: A motor (21) includes a stator (30) and a rotor (40). The stator includes a housing (31) accommodating magnet(s) (32) and including multiple sidewalls (33) and connecting portions (34) adjoining neighboring sidewalls. A sidewall includes zero or more flat segment (35, 38) and zero or more curved segments (38, 36) having one or more radii. A connecting portion includes a substantially flat segment or a curved segment having one or more radii and adjoins two neighboring sidewalls. A torque transmitting device (15) includes the motor and a clutch (22) actuated by the motor to transmit or cease transmitting engine (11) output to driven mechanism(s) (17, 18, 12, 13, 14). A powertrain includes the torque transmitting device to switch between drive modes with the torque transmitting device to engage or disengage engine output with axles.Type: ApplicationFiled: November 6, 2013Publication date: May 8, 2014Applicant: Johnson Electric S.A.Inventors: Ruifeng QIN, Chengshun DU, Linan LI, Fayun QI
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Publication number: 20140062266Abstract: A fuse component (36) configured to provide overcurrent protection for an electric motor (20) comprises a spiral (41) of a plurality of coaxial wire loops (44) and an outer insulating sleeve (39) surrounding at least a portion of the spiral (41). The overcurrent threshold of the fuse component (36) may be adjusted by changing the number of loops in the spiral (41) or the cross-section area of the wire in the spiral (41). The fuse component (41) may also function as an inductor (35) and/or connected to a speed adjustable resistor.Type: ApplicationFiled: September 3, 2013Publication date: March 6, 2014Applicant: Johnson Electric S.A.Inventors: Ruifeng QIN, Xinhui GUAN, Tao QU, Zhong WAN