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公开(公告)号：US09890909B2
公开(公告)日：2018-02-13
申请号：US15298272
申请日：2016-10-20
发明人： Xintong Liu , Tao Jiang , Aiming Xiong , Liqin Li
IPC分类号： H05B37/00 , H05B39/00 , H05B41/14 , F21K9/278 , H05B33/08 , F21V23/00 , F21V29/83 , F21K9/27 , F21V23/02 , F21K9/272 , F21V25/04 , F21Y103/10 , F21Y115/10 , F21Y101/00
CPC分类号： F21K9/278 , F21K9/27 , F21K9/272 , F21V23/009 , F21V23/02 , F21V25/04 , F21V29/83 , F21Y2101/00 , F21Y2103/10 , F21Y2115/10 , H05B33/0803 , H05B33/0809 , H05B33/0884 , Y02B20/341
摘要： An LED tube lamp is provided herein, which implements the safety function for protecting the user from electric shock since it conducts only when both ends thereof have been correctly installed into a lamp socket. The LED tube lamp includes an installation detection module configured in the LED tube lamp to detect an installation state between the LED tube lamp and the lamp socket. The installation detection module includes: a detection pulse generating module, configured to generate a first pulse signal; a detection result latching circuit, configured to receive and output the first pulse signal; a switch circuit, configured to receive the first pulse signal from the detection result latching circuit, and configured to maintain a conductive state of the switch circuit during the first pulse to cause a power loop of the LED tube lamp to be conductive; and a detection determining circuit, configured to detect a first sampling signal on the power loop so as to determine the installation state between the LED tube lamp and the lamp socket.
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公开(公告)号：US10704741B2
公开(公告)日：2020-07-07
申请号：US16662485
申请日：2019-10-24
IPC分类号： F21K9/232 , H01L33/62 , F21V3/02 , F21K9/238 , H01L25/075 , F21Y115/10 , F21V3/06 , F21Y107/50 , F21Y107/00 , F21Y103/33 , F21K9/90 , F21Y103/37 , F21V19/00
摘要： An LED light bulb comprises an LED filament configured for emitting omnidirectional light. The filament comprises a linear array of LED chips operably interconnected to emit light upon energization, a conductive electrode electrically connected with the linear array of LED chips, and a light conversion coating enclosing the linear array of the LED chip and the electrode. The light conversion coating includes a top layer and a base layer conformally interconnected to form a unitary enclosure. The top layer is coated on a first side of the linear array of LED chips and the electrode. The base layer is coated on a second side of the linear array of LED chips and the electrode. A first LED chip in the linear array of LED chips is guided by the unitary enclosure to a different angle in relation to a second LED chip in the linear array of the LED chips.
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公开(公告)号：US09629211B2
公开(公告)日：2017-04-18
申请号：US15205011
申请日：2016-07-08
发明人： Aiming Xiong , Qifeng Ye , Tao Jiang , Zhong Chen , Liqin Li
IPC分类号： H05B37/00 , H05B41/00 , H05B33/08 , F21K9/272 , F21V19/00 , F21V23/02 , F21K9/27 , F21Y103/10 , F21Y115/10 , F21V29/83 , F21K9/278
CPC分类号： H05B33/0815 , F21K9/27 , F21K9/272 , F21K9/278 , F21V19/009 , F21V23/02 , F21V23/026 , F21V29/83 , F21Y2103/10 , F21Y2115/10 , H05B33/0803 , H05B33/0809 , H05B33/0845 , H05B33/0884 , H05B33/0887
摘要： A light emitting diode (LED) tube lamp includes a lamp tube; a first external connection terminal coupled to the lamp tube and for receiving an external driving signal; a second external connection terminal coupled to the lamp tube and for receiving an external driving signal; a first rectifier coupled to the first external connection terminal and configured to rectify the external driving signal to produce a rectified signal; a second rectifier coupled to the second external connection terminal for rectifying the external driving signal; a filtering circuit coupled to the first rectifier and the second rectifier and configured to filter the rectified signal to produce a filtered signal; an LED lighting module coupled to the filtering circuit and configured to receive the filtered signal for emitting light; and a first bypass circuit coupled between the first rectifying circuit and the second external connection terminal. The first external connection terminal is an input terminal for the first rectifier and a first node is directly electrically connected to an output terminal for the first rectifier. In addition, the second external connection terminal is an input terminal for the second rectifier and a second node is directly electrically connected to an output terminal for the second rectifier. Further the first bypass circuit includes a first terminal connected to second external connection terminal and a second terminal connected to the first node, and the first bypass circuit is configured such that when the external driving signal is initially input between the first external connection terminal and the second external connection terminal, the first bypass circuit initially conducts current bypassing the LED lighting module to prevent the LED tube lamp from emitting light, until the bypass circuit enters an open-circuit state, allowing a current to flow through the LED lighting module and thereby allowing the LED tube lamp to emit light.
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公开(公告)号：US09618168B1
公开(公告)日：2017-04-11
申请号：US15211717
申请日：2016-07-15
发明人： Tao Jiang , Hong Xu , Liqin Li , Chang Yang
IPC分类号： H01J13/46 , H01J7/44 , H01J17/34 , H01J19/78 , H01J23/16 , H01J29/96 , H01K1/62 , F21S4/28 , F21V23/02 , F21K9/60 , F21Y115/10 , F21Y103/10
CPC分类号： F21K9/60 , B23K1/0016 , B23K3/04 , B23K3/08 , B23K2101/42 , F21K9/27 , F21K9/272 , F21K9/278 , F21V3/049 , F21V3/061 , F21V3/10 , F21V7/22 , F21V17/101 , F21V23/02 , F21V29/83 , F21Y2103/10 , F21Y2115/10 , H05B33/0803 , H05B33/0815
摘要： An LED tube lamp includes a glass tube, two end caps, a power supply, and an LED light strip. The glass tube includes a main body region, two rear end regions, and two transition regions connecting the main body region and the rear end regions. The end cap is disposed at one end of the glass tube and the power supply is provided inside the end cap. The LED light strip is disposed inside the glass tube and has LED light sources disposed thereon. The LED light strip includes a bendable circuit sheet mounted on inner surface of the glass tube. The bendable circuit sheet of the LED light strip is formed with a freely extending end portion at one end, and the freely extending end portion is electrically connected to the power supply. The glass tube and the end cap are secured by a hot melt adhesive.
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公开(公告)号：US20160091147A1
公开(公告)日：2016-03-31
申请号：US14865387
申请日：2015-09-25
发明人： Tao Jiang , Liqin Li , Xiaosu Yang , Jun Yang , Yueqiang Zhang , Cheng Wang , Chang Yang , Bao Wang , Nobutaka Ota , Xiao Sun , Aiming Xiong , Hechen Hu , Qifeng Ye , Xintong Liu , Changwei Hu , Guohai Yao , Zhangyong Xiang , Shauliang Chen , Dingkai Wang , Wen-Jang Jiang
CPC分类号： F21K9/278 , B23K1/0016 , B23K3/047 , B23K2101/42 , C03C21/002 , C03C27/048 , F21K9/1375 , F21K9/235 , F21K9/27 , F21K9/272 , F21K9/275 , F21K9/68 , F21V3/061 , F21V3/10 , F21V7/22 , F21V15/015 , F21V17/101 , F21V23/009 , F21V23/02 , F21V25/02 , F21V25/04 , F21V29/70 , F21V29/83 , F21Y2101/00 , F21Y2103/00 , F21Y2103/10 , F21Y2115/10 , H05B6/105 , H05B33/0803 , H05B33/0809 , H05B33/0815 , H05B33/0845 , H05B33/0884 , H05B33/089
摘要： A light-emitting diode (LED) tube lamp comprises a lamp tube, a first rectifying circuit, a filtering circuit and an LED driving module. The lamp tube has a first pin and a second pin for receiving an external driving signal. The first rectifying circuit is coupled to the first and second pins, for rectifying the external driving signal to produce a rectified signal. The filtering circuit is coupled to the first rectifying circuit, for filtering the rectified signal to produce a filtered signal. The LED driving module is coupled to the filtering circuit to receive the filtered signal for emitting light. Wherein, the filtering circuit includes a capacitor and an inductor connected in parallel and between one of the first and second pins and the first rectifying circuit, and the parallel-connected capacitor and inductor are configured for presenting a peak equivalent impedance to the external driving signal at a specific frequency.
摘要翻译： 发光二极管（LED）管灯包括灯管，第一整流电路，滤波电路和LED驱动模块。 灯管具有用于接收外部驱动信号的第一引脚和第二引脚。 第一整流电路耦合到第一和第二引脚，用于整流外部驱动信号以产生整流信号。 滤波电路耦合到第一整流电路，用于滤波整流信号以产生滤波信号。 LED驱动模块耦合到滤波电路以接收用于发光的滤波信号。 其中，滤波电路包括并联连接的电容器和电感器，以及第一和第二引脚和第一整流电路之一，并联连接的电容器和电感器被配置为向外部驱动信号呈现峰值等效阻抗 在特定频率。
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公开(公告)号：US10767817B2
公开(公告)日：2020-09-08
申请号：US16701170
申请日：2019-12-03
IPC分类号： F21K9/232 , H01L25/075 , H01L33/62 , F21K9/64 , F21V3/02 , F21K9/238 , F21K9/90 , F21V19/00 , F21Y115/10 , F21Y103/33 , F21Y103/37 , F21Y107/00 , H01L33/50 , F21V3/06
摘要： An LED light bulb, comprising: a bulb shell with a lower part and an upper part opposite to the lower part; a bulb base connected with the bulb shell; a heat dissipating element connected with the lower part of the bulb shell and the bulb base, wherein the height of the heat dissipating element is L1 and the maximum height from the heat dissipating element to the upper part of the bulb shell is L2, and the ratio of L1 to L2 is from 1/30 to 1/3; and an LED filament with a plurality of LED chips electrically connected to each other disposed in the bulb shell, two conductive supports, disposed in the bulb shell, a driving circuit, electrically connected with the two conductive supports and the bulb base, a stem disposed in the bulb shell, the LED filament is connected with the stem through the conductive supports.
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公开(公告)号：US10781979B2
公开(公告)日：2020-09-22
申请号：US15308995
申请日：2015-09-25
发明人： Tao Jiang , Liqin Li , Zhixiang Zeng , Qifeng Ye , Shuanglang Li , Zhaosong Lin , Dingkai Wang , Weijun Zhu
IPC分类号： F21V1/00 , F21K9/232 , F21V25/00 , F21K9/238 , F21K9/237 , F21V3/02 , F21V7/22 , F21Y115/10 , F21Y105/12
摘要： An LED lamp bulb, comprising: an LED lamp substrate (5) having at least one LED light source (51) mounted thereon; and an electrical isolation assembly (6a) disposed on the LED lamp substrate (5), wherein, the electrical isolation assembly (6a) electrically isolates the LED lamp substrate's charged part from outside of the LED lamp substrate (5). The LED lamp bulb can protect user from contacting the charged part inside the lamp housing (7) when the LED lamp bulb is broken and thereby avoid electric shock accidents. In addition, the directions of the light emitted by the LED light sources (51) can be changed to achieve different kinds of lighting effects.
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公开(公告)号：US10527233B2
公开(公告)日：2020-01-07
申请号：US16259982
申请日：2019-01-28
IPC分类号： F21K9/232 , H01L25/075 , H01L33/62 , F21K9/64 , F21V3/02 , F21K9/238 , F21K9/90 , F21V19/00 , F21Y115/10 , F21Y103/33 , F21Y103/37 , F21Y107/00 , H01L33/50 , F21V3/06
摘要： An LED light bulb, comprising: a bulb shell; a bulb base connected with the bulb shell to defining a cavity inside the bulb shell, the cavity is filled with air selected from the group consisting of helium and hydrogen, the volume ratio of hydrogen to the overall volume of the cavity is from 5% to 50%; and an LED filament with a plurality of LED chips electrically connected to each other disposed in the bulb shell, at least two conductive supports, disposed in the bulb shell, a driving circuit, electrically connected with the two conductive supports and the bulb base, a stem disposed in the bulb shell, the LED filament is connected with the stem through the conductive supports, and a plurality of supporting arms, connected with and supporting the LED filament.
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公开(公告)号：US09945520B2
公开(公告)日：2018-04-17
申请号：US15483368
申请日：2017-04-10
发明人： Tao Jiang , Hong Xu , Liqin Li , Chang Yang
IPC分类号： H05B37/00 , H05B39/00 , H05B41/14 , F21K9/272 , F21K9/278 , F21V29/83 , F21V3/04 , F21V23/06 , F21V17/10 , F21V3/02 , F21Y115/10 , F21Y103/10
CPC分类号： F21K9/272 , F21K9/278 , F21K9/68 , F21V3/02 , F21V3/061 , F21V3/10 , F21V15/015 , F21V17/101 , F21V23/02 , F21V23/06 , F21V29/507 , F21V29/70 , F21V29/83 , F21Y2103/10 , F21Y2115/10 , H05B33/0803
摘要： An LED tube lamp includes a glass tube, a plurality of LED light sources, two end caps respectively sleeving two end portions of the glass tube, a power supply in one of the end caps or separately in both of the end caps, and an LED light strip in the glass tube. The plurality of LED light sources is on the LED light strip. Each of the end caps comprises a plurality of openings formed thereon. The plurality of openings dissipating heat resulted from the power supply are divided into two sets. The two sets of the plurality of openings are symmetric to each other with respect to a virtual central axis of the end cap.
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