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公开(公告)号：US12007077B2
公开(公告)日：2024-06-11
申请号：US18126000
申请日：2023-03-24
Inventor： Tao Jiang , MingBin Wang , Yuexing Li , Zhichao Zhang , Chihshan Yu , Aiming Xiong , Lin Zhou , JunFeng Xu
IPC: F21K9/232 , F21K9/235 , F21K9/238 , F21V3/10 , F21Y107/00 , F21Y107/20 , F21Y107/70 , F21Y115/10 , H05B45/00
CPC classification number: F21K9/232 , F21K9/235 , F21K9/238 , F21V3/10 , H05B45/00 , F21Y2107/00 , F21Y2107/20 , F21Y2107/70 , F21Y2115/10
Abstract: An LED light bulb is provided. The LED light bulb includes a lamp housing, a bulb base, a stem, first and second conductive supports, a driving circuit, and a flexible LED filament. The flexible filament includes two conductive electrodes, a first LED section, a second LED section, and a conductive section. The first LED section is bent in a first space curved shape. The second LED section is bent in a second space curved shape. The conductive section includes a center point of the flexible LED filament. The flexible LED filament is bent in a third space curved shape comprising the first space curved shape and the second space curved shape.
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公开(公告)号：US11892127B2
公开(公告)日：2024-02-06
申请号：US17509078
申请日：2021-10-25
Inventor： Tao Jiang
IPC: F21K9/232 , F21K9/68 , F21V23/06 , F21K9/61 , F21Y115/10 , F21V29/503 , F21Y107/70 , F21Y109/00
CPC classification number: F21K9/232 , F21K9/61 , F21K9/68 , F21V23/06 , F21V29/503 , F21Y2107/70 , F21Y2109/00 , F21Y2115/10
Abstract: An LED filament includes a plurality of LED chips arranged in an array substantially along an axial direction of the LED filament and electrically connected with one another; two conductive electrodes disposed corresponding to the array, each of the two conductive electrodes being electrically connected to a corresponding LED chip at an end of the array; an enclosure coated on at least two sides of the array and the two conductive electrodes, and a portion of each of the two conductive electrodes being exposed from the enclosure; a surface of the enclosure defines a surface extending direction along the axial direction of the LED filament, a long side of each of the LED chips defines an LED extending direction, and the surface extending direction and the LED extending direction of at least one of the LED chips define an included angler.
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公开(公告)号：US11543083B2
公开(公告)日：2023-01-03
申请号：US17377341
申请日：2021-07-15
Inventor： Tao Jiang , Zhichao Zhang , Yukihiro Saito , Hayato Unagiike
IPC: F21K9/232 , H01L25/075 , H01L33/50 , H01L33/56 , H01L33/62 , F21K9/238 , F21Y115/10 , F21Y103/30 , C08G73/10 , C08J5/18
Abstract: An LED filament and an LED light bulb applying the same are provided. The LED filament includes a at least one LED section, wherein the at least one LED section comprises at least two LED chips electrically connected to each other through a first wire, and at least two conductive electrodes, wherein each of the at least two conductive electrodes is electrically connected to corresponding one of the at least one LED section; and a light conversion layer, covering the at least one LED section and a portion of each of the at least two conductive electrodes, a portion of the first wire is exposed outside the light conversion layer.
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公开(公告)号：US11187384B2
公开(公告)日：2021-11-30
申请号：US16042477
申请日：2018-07-23
Inventor： Tao Jiang
IPC: F21K9/232 , F21K9/68 , F21V23/06 , F21K9/61 , F21Y115/10 , F21V29/503 , F21Y107/70 , F21Y109/00
Abstract: An LED filament includes LED chips, two conductive electrodes, and an enclosure. The LED chips are arranged in an array along an axial direction of the LED filament and are electrically connected with one another. The two conductive electrodes are disposed corresponding to the array. Each of the two conductive electrodes is electrically connected to a corresponding LED chip at an end of the array. The enclosure is coated on two or more sides of the array and the two conductive electrodes. A portion of each of the two conductive electrodes is exposed from the enclosure. Postures of two or more of the LED chips related to an axis of the LED filament along the axial direction or related to a horizontal plane the LED filament is laid on are different from each other.
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公开(公告)号：US11168843B2
公开(公告)日：2021-11-09
申请号：US16225618
申请日：2018-12-19
Inventor： Tao Jiang
IPC: F21K9/232 , F21K9/68 , F21V23/06 , F21K9/61 , F21Y115/10 , F21V29/503 , F21Y107/70 , F21Y109/00
Abstract: An LED filament includes LED chips, two conductive electrodes, and an enclosure. The LED chips are arranged in an array along an axial direction of the LED filament and are electrically connected with one another. The two conductive electrodes are disposed corresponding to the array. Each of the two conductive electrodes is electrically connected to a corresponding LED chip at an end of the array. The enclosure is coated on two or more sides of the array and the two conductive electrodes. A portion of each of the two conductive electrodes is exposed from the enclosure. An axis of the LED filament is parallel with the axial direction, and a radial direction of the LED filament is perpendicular to the axial direction. Postures of at least a part of the LED chips related to an axis are different from each other on the radial direction.
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Patent Agency Ranking
公开(公告)号：US11035525B2
公开(公告)日：2021-06-15
申请号：US16875990
申请日：2020-05-16
IPC: F21V3/02 , F21V9/00 , F21K9/237 , F21K9/232 , F21K9/235 , F21V29/70 , F21V9/30 , F21K9/238 , F21Y115/10 , F21K9/90 , F21V19/00 , H01L23/00 , H01L25/075 , F21Y103/33 , F21Y103/37 , F21Y107/00 , F21V3/06
Abstract: An LED light bulb includes a bulb shell, a bulb base, a stem, conductive supports, an LED filament, and a supporting arm. The bulb base is connected to the bulb shell. The stem is connected to the bulb base. The conductive supports are connected to the stem. The LED filament includes a filament body and two conductive electrodes. The conductive electrodes are at two ends of the filament body and connected to the conductive supports. The filament body is around the stem. The supporting arm is connected to the stem and the filament body. In a height direction of the LED light bulb, H is a distance from a bottom to a top of the bulb shell. A first height difference is defined between the two conductive electrodes and is from 0 to 1/10H. The filament body is curved to form a highest point and a lowest point. A second height difference is defined between the highest point and the lowest point. The first height difference is less than the second height difference.
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公开(公告)号：US10690293B2
公开(公告)日：2020-06-23
申请号：US16262798
申请日：2019-01-30
IPC: H01L27/15 , H01L27/32 , F21K9/237 , F21K9/232 , F21V3/02 , F21K9/235 , F21V29/70 , F21V9/30 , F21K9/238 , F21Y115/10 , F21K9/90 , F21V19/00 , H01L23/00 , H01L25/075 , F21Y103/33 , F21Y103/37 , F21Y107/00 , F21V3/06
Abstract: An LED light bulb includes a bulb shell, a bulb base, a stem, conductive supports, an LED filament, and a supporting arm. The bulb base is connected to the bulb shell. The stem is connected to the bulb base. The conductive supports are connected to the stem. The LED filament includes a filament body and two conductive electrodes. The conductive electrodes are at two ends of the filament body and connected to the conductive supports. The filament body is around the stem. The supporting arm is connected to the stem and the filament body. In a height direction of the LED light bulb, H is a distance from a bottom to a top of the bulb shell. A first height difference is defined between the two conductive electrodes and is from 0 to 1/10H. The filament body is curved to form a highest point and a lowest point. A second height difference is defined between the highest point and the lowest point. The first height difference is less than the second height difference.
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公开(公告)号：US10544905B2
公开(公告)日：2020-01-28
申请号：US15858036
申请日：2017-12-29
Inventor： Tao Jiang , Yi-Ching Chen
Abstract: An LED light bulb includes a bulb shell, a bulb base, two conductive supports, a stem, and an LED filament. The bulb base is connected with the bulb shell. The two conductive supports are disposed in the bulb shell. The stem extends from the bulb base to inside of the bulb shell. The LED filament includes a plurality of LED chips and two conductive electrodes. The LED chips are arranged in an array along an elongated direction of the LED filament. The two conductive electrodes are respectively disposed at two ends of the LED filament and connected to the LED chips. The two conductive electrodes are respectively connected to the two conductive supports. The LED filament is curled to satisfy symmetry characteristics. Brightness presented by portions of the LED filament in different quadrants in a top view or in a side view is in line symmetry or in point symmetry.
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公开(公告)号：US10473271B2
公开(公告)日：2019-11-12
申请号：US15366535
申请日：2016-12-01
Inventor： Tao Jiang , Liqin Li , Heping Fei , Wentao Yao , Lvhui Zhou , Cheng Wang , Jin Wang
IPC: F21K9/232 , F21V3/02 , F21K9/238 , H01L25/075 , H01L33/62 , H01L33/50 , H01L33/56 , F21Y115/10 , F21V3/06 , F21K9/90 , F21V19/00 , F21Y103/33 , F21Y103/37 , F21Y107/00 , H01L33/54
Abstract: An LED filament module and an LED light bulb are disclosed. The LED filament module includes one or more LED filaments, a first connecting portion, and a second connecting portion. The LED filaments are spaced from each other. Each of the LED filaments includes a first conductive electrode and a second conductive electrode opposite to the first conductive electrode. The first connecting portion is connected with the first conductive electrodes. The second connecting portion is connected with the second conductive electrodes. The LED filament module has a first type. The LED filaments, the first connecting portion, and the second connecting portion of the first type are in a three dimensional form. One or two between the first connecting portion and the second connecting portion of the first type has a torus shape.
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公开(公告)号：US20190170304A1
公开(公告)日：2019-06-06
申请号：US16225618
申请日：2018-12-19
Inventor： Tao Jiang
Abstract: An LED filament includes LED chips, two conductive electrodes, and an enclosure. The LED chips are arranged in an array along an axial direction of the LED filament and are electrically connected with one another. The two conductive electrodes are disposed corresponding to the array. Each of the two conductive electrodes is electrically connected to a corresponding LED chip at an end of the array. The enclosure is coated on two or more sides of the array and the two conductive electrodes. A portion of each of the two conductive electrodes is exposed from the enclosure. An axis of the LED filament is parallel with the axial direction, and a radial direction of the LED filament is perpendicular to the axial direction. Postures of at least a part of the LED chips related to an axis are different from each other on the radial direction.
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