Patents by Inventor Xiaoqing Duan
Xiaoqing Duan 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: 11967442Abstract: A skin layer of a superconducting tape has a woven mesh structure and is disposed on a surface of a superconducting tape. The skin layer of a superconducting tape solves the problem where a vapor layer generated when a superconductor is in a normal resistive state greatly reduces the efficiency of a heat exchange between the superconductor and liquid nitrogen. Further provided are the superconducting tape and a superconducting coil.Type: GrantFiled: August 30, 2019Date of Patent: April 23, 2024Assignees: GUANGDONG POWER GRID CO., LTD., ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID CO., LTDInventors: Xinhui Duan, Lianhong Zhong, Yongfa Zhao, Meng Song, Bing Zhao, Xiaoqing Xiao, Chao Sheng, Jian Zhang, Li Li, Yunsong Luo
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Patent number: 11466818Abstract: The invention provides a lighting unit having an internal controller. The external power connector of the lighting unit (i.e. the electrical connector plug for connecting the lighting unit to an electrical lighting socket) comprises a manual adjustment element for selecting a setting of the controller. Thus, the manual adjustment element, which functions as a manual user interface, is integrated into the electrical plug part of the lighting unit.Type: GrantFiled: October 12, 2021Date of Patent: October 11, 2022Assignee: SIGNIFY HOLDING B.V.Inventors: Chengrui Yan, Mo Shen, Xiaoqing Duan, Yuanqiang Liu
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Publication number: 20220120387Abstract: The invention provides a lighting unit having an internal controller. The external power connector of the lighting unit (i.e. the electrical connector plug for connecting the lighting unit to an electrical lighting socket) comprises a manual adjustment element for selecting a setting of the controller. Thus, the manual adjustment element, which functions as a manual user interface, is integrated into the electrical plug part of the lighting unit.Type: ApplicationFiled: October 12, 2021Publication date: April 21, 2022Inventors: CHENGRUI YAN, MO SHEN, XIAOQING DUAN, YUANQIANG LIU
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Patent number: 10865974Abstract: A solid state lighting lamp (10) is disclosed comprising a plurality of heatsink modules (40) each extending in alignment with a central axis (15) of the lamp, each heatsink module carrying a plurality of solid state lighting elements (50); and a body (20) extending in alignment with said central axis and delimiting an inner volume of the lamp, wherein the heatsink modules are affixed to said body. The body is the optical housing, i.e. the light exit window of the lamp.Type: GrantFiled: June 1, 2018Date of Patent: December 15, 2020Assignee: SIGNIFY HOLDING B.V.Inventors: Xiaoqing Duan, Zhigang Pei, Linggen Mo
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Publication number: 20200088396Abstract: A solid state lighting lamp (10) is disclosed comprising a plurality of heatsink modules (40) each extending in alignment with a central axis (15) of the lamp, each heatsink module carrying a plurality of solid state lighting elements (50); and a body (20) extending in alignment with said central axis and delimiting an inner volume of the lamp, wherein the heatsink modules are affixed to said body. The body is the optical housing, i.e. the light exit window of the lamp.Type: ApplicationFiled: June 1, 2018Publication date: March 19, 2020Inventors: XIAOQING DUAN, ZHIGANG PEI, LINGGEN MO
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Publication number: 20200032964Abstract: A lighting device (100) comprises an elongate tubular body (102) with a carrier (104) located inside the tubular body. The carrier comprises a first section (106) and a second section (108), each of which carries at least one solid state lighting element (110). The first section extends in the elongation direction of the tubular body. The second section extends from an end of the first section at an angle with respect to the first section such that the second section and the tubular body at least partially delimit an internal cavity of the tubular body. Further provided is a luminaire comprising said lighting device.Type: ApplicationFiled: March 26, 2018Publication date: January 30, 2020Inventors: Xiaoqing DUAN, Yun WANG, Linggen MO
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Patent number: 10132449Abstract: Various embodiments of the present application provide a lamp device, an LED lamp, and a luminaire. The lamp device according to the embodiments of the present utility mode comprises: a lamp cap having a central pin (21, 211) for providing an electrical connection to the lamp device; and a printed circuit board at least partially located within the lamp cap, wherein a lamp driver (12) is mounted on the printed circuit board; characterized in that a bottom edge of said printed circuit board includes a notch (16, 161) comprising a first contact electrically contacting said central pin. The lamp device according to the present application improves the assembly of the lamp device and enhances the production efficiency.Type: GrantFiled: March 16, 2015Date of Patent: November 20, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Bao Wang, Xiaoqing Duan, Yan Xiong
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Patent number: 9970598Abstract: There is provided a lighting device (100) comprising a housing comprising a frangible light exit window (110) and a fitting (120) including a first electrical connector (122) inside said housing. Within the housing there is a carrier assembly (130) comprising a plurality of SSL elements (132), and a second electrical connector (134) in contact with the first electrical connector (122). The second electrical connector (134) is held in contact with the first electrical connector (122) by the light exit window (110). This lighting device is relatively safe as if the light exit window (110) breaks the electrical components of the carrier assembly (130) may not be live.Type: GrantFiled: April 28, 2015Date of Patent: May 15, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Robertus Leonardus Tousain, Jean-Paul Jacobs, Xiaoqing Duan
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Patent number: 9816698Abstract: A lighting device (1) comprising a driver (7) arranged at a base (2) of the lighting device (1), a heat sink (14) arranged at a portion (3) of the lighting device (1), separate from the driver (7), a light source (13) mounted to the heat sink (14), and a wire (10) arranged to electrically connect the light source (13) to the driver (7), wherein a portion of the wire (10) extending from the base (2) to the portion of the lighting device (1) is arranged to be exposed to light from the light source (13). The present embodiment is advantageous in that the thermal performance is improved and the lifetime of the lighting device (1) is increased. Further, the exposed wire (10) may be illuminated by the light source (13) and visible from outside the lighting device (1), thereby having the appearance of a filament.Type: GrantFiled: May 14, 2013Date of Patent: November 14, 2017Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Bao Wang, Xiaoqing Duan, Rosen Guo, Chuan Yuan
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Publication number: 20170227170Abstract: Various embodiments of the present application provide a lamp device, an LED lamp, and a luminaire. The lamp device according to the embodiments of the present utility mode comprises: a lamp cap having a central pin (21, 211) for providing an electrical connection to the lamp device; and a printed circuit board at least partially located within the lamp cap, wherein a lamp driver (12) is mounted on the printed circuit board; characterized in that a bottom edge of said printed circuit board includes a notch (16, 161) comprising a first contact electrically contacting said central pin. The lamp device according to the present application improves the assembly of the lamp device and enhances the production efficiency.Type: ApplicationFiled: March 16, 2015Publication date: August 10, 2017Inventors: Bao WANG, Xiaoqing DUAN, Yan XIONG
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Publication number: 20170138541Abstract: There is provided a lighting device (100) comprising a housing comprising a frangible light exit window (110) and a fitting (120) including a first electrical connector (122) inside said housing. Within the housing there is a carrier assembly (130) comprising a plurality of SSL elements (132), and a second electrical connector (134) in contact with the first electrical connector (122). The second electrical connector (134) is held in contact with the first electrical connector (122) by the light exit window (110). This lighting device is relatively safe as if the light exit window (110) breaks the electrical components of the carrier assembly (130) may not be live.Type: ApplicationFiled: April 28, 2015Publication date: May 18, 2017Inventors: ROBERTUS LEONARDUS TOUSAIN, JEAN-PAUL JACOBS, XIAOQING DUAN
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Patent number: 9249965Abstract: There is provided a lighting device 100 comprising a light source, a driver arranged for powering the light source, which is separated in space from the light source. The lighting device has two separate heat sinks, a light source heat sink 112 to which the light source is thermally coupled, and a driver heat sink 115 to which the driver is thermally coupled. The light source heat sink and the driver heat sink are separated by an air gap 114 to provide thermal decoupling of the light source heat sink and the driver heat sink.Type: GrantFiled: January 11, 2012Date of Patent: February 2, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Berend Jan Willem Ter Weeme, Remco Yuri Van De Moesdijk, Marcus Joannes Van Den Bosch, Yan Xiong, Xiaoqing Duan
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Patent number: 9175817Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.Type: GrantFiled: April 23, 2010Date of Patent: November 3, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Christoph Gerard August Hoelen, Roger Cornelis Petrus Hoskens, Rene Theodorus Wegh, Nibu Ampalathumkal George, Xiaoqing Duan, Timothy Howard Rider, Lei Shi, Johannes Petrus Maria Ansems
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Publication number: 20150138777Abstract: A lighting device (1) comprising a driver (7) arranged at a base (2) of the lighting device (1), a heat sink (14) arranged at a portion (3) of the lighting device (1), separate from the driver (7), a light source (13) mounted to the heat sink (14), and a wire (10) arranged to electrically connect the light source (13) to the driver (7), wherein a portion of the wire (10) extending from the base (2) to the portion of the lighting device (1) is arranged to be exposed to light from the light source (13). The present embodiment is advantageous in that the thermal performance is improved and the lifetime of the lighting device (1) is increased. Further, the exposed wire (10) may be illuminated by the light source (13) and visible from outside the lighting device (1), thereby having the appearance of a filament.Type: ApplicationFiled: May 14, 2013Publication date: May 21, 2015Applicant: Koninkljke Philips N.V.Inventors: Bao Wang, Xiaoqing Duan, Guangliang Guo, Chuan Yuan
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Patent number: 8664838Abstract: The invention provides an illumination apparatus (10) and a method of assembling the illumination apparatus. The illumination apparatus comprises a light source (101) having a plurality of LED arrays, wherein at least two of the plurality of LED arrays have different lumen degradations as a function of junction temperature of the respective LED arrays; and a heat dissipation unit (102) configured to be capable of dissipating heat generated by the light source, wherein the heat dissipation unit is mounted on a first surface of the light source in such a way that there is a gap between the first surface and the heat dissipation unit when the light source is not in operation, and the gap is narrowed or can be deemed to disappear when the light source reaches a preset temperature, so that the heat dissipation efficiency of the heat dissipation unit is improved.Type: GrantFiled: December 8, 2011Date of Patent: March 4, 2014Assignee: Koninklijke Philips N.V.Inventors: Chuan Yuan, Xiaoqing Duan, Yan Xiong
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Publication number: 20140001956Abstract: There is provided a lighting device 100 comprising a light source, a driver arranged for powering the light source, which is separated in space from the light source. The lighting device has two separate heat sinks, a light source heat sink 112 to which the light source is thermally coupled, and a driver heat sink 115 to which the driver is thermally coupled. The light source heat sink and the driver heat sink are separated by an air gap 114 to provide thermal decoupling of the light source heat sink and the driver heat sink.Type: ApplicationFiled: January 11, 2012Publication date: January 2, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Berend Jan Willem Ter Weeme, Remco Yuri Van De Moesdijk, Marcus Joannes Van Den Bosch, Yan Xiong, Xiaoqing Duan
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Publication number: 20130257261Abstract: The invention provides an illumination apparatus (10) and a method of assembling the illumination apparatus. The illumination apparatus comprises a light source (101) having a plurality of LED arrays, wherein at least two of the plurality of LED arrays have different lumen degradations as a function of junction temperature of the respective LED arrays; and a heat dissipation unit (102) configured to be capable of dissipating heat generated by the light source, wherein the heat dissipation unit is mounted on a first surface of the light source in such a way that there is a gap between the first surface and the heat dissipation unit when the light source is not in operation, and the gap is narrowed or can be deemed to disappear when the light source reaches a preset temperature, so that the heat dissipation efficiency of the heat dissipation unit is improved.Type: ApplicationFiled: December 8, 2011Publication date: October 3, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Chuan Yuan, Xiaoqing Duan, Yan Xiong
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Publication number: 20120155059Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.Type: ApplicationFiled: April 23, 2010Publication date: June 21, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Christoph Gerard August Hoelen, Roger Cornelis Petrus Hoskens, Rene Theodorus Wegh, Nibu Ampalathumkal George, Xiaoqing Duan, Timothy Howard Rider, Lei Shi, Johannes Petrus Maria Ansems
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Patent number: D902447Type: GrantFiled: May 3, 2019Date of Patent: November 17, 2020Assignee: SIGNIFY HOLDING B.V.Inventors: Wang Li, Xiaoqing Duan, Mo Ling Gen, Yun Fei Duan, Wang Tzu Wei, Yong Joon Hwang, Zhong Wang, Steven Fei
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Patent number: D940914Type: GrantFiled: February 27, 2020Date of Patent: January 11, 2022Assignee: SIGNIFY HOLDING B.V.Inventors: Li Wang, Lan Deng, Xiaoqing Duan, Ling Gen Mo