Curved LED tubular lamp

• US 10,288,272 B2
• Filed: 02/24/2017
• Issued: 05/14/2019
• Est. Priority Date: 03/17/2016
• Status: Active Grant

• Current Assignee: Zhejiang Super Lighting Electric Appliance Company Limited
• Original Assignee: Zhejiang Super Lighting Electric Appliance Company Limited
• Inventors: Yao, Wentao, Zhu, Weijun, Lin, Zhaosong, Guo, Zhi
• Primary Examiner(s): Garlen, Alexander K
• Application Number:
  US15/441,592
• Publication Number:
  US 20170268759A1
• Time in Patent Office: 809 Days
• CPC Class Codes: F21K 9/272 Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts F21K9/278 takes precedence
• CPC Class Codes: F21V 15/015 Devices for covering joints between adjacent lighting devices; End coverings
• CPC Class Codes: F21V 17/101 permanently, e.g. welding, gluing or riveting
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 25/02 coming into action when lighting device is disturbed, dismounted, or broken
• CPC Class Codes: F21V 29/85 characterised by the material liquid coolants F21V29/56
• CPC Class Codes: F21V 3/061 the material being glass
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2103/37 U-shaped
• CPC Class Codes: F21Y 2107/70 on flexible or deformable supports or substrates, e.g. for changing the light source into a desired form
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A curved LED tubular lamp is disclosed. The curved LED tubular lamp includes a curved lamp tube having two straight segments and a curve segment disposed between the two straight segments; at least one flexible substrate having a plurality of LEDs mounted thereon, and at least one positioning pillar formed on the inner surface of the curve segment of the curved lamp tube, wherein each of the two straight segments and the curve segment have LEDs disposed therein, and wherein the flexible substrate is disposed in at least the curve segment.

Claims

1. A curved LED tubular lamp, comprising:

a curved lamp tube having two straight segments and a curve segment disposed between the two straight segments; and

a first light board and a second light board respectively attached to an inner wall of each of the two straight segments;

wherein each of the first light board and the second light board has LEDs disposed thereon, wherein each of the first light board and the second light board has a plurality of spacers to form notches thereon, and the plurality of spacers are designed of substantially the same shape;

wherein the first light board and the second light board are separated into at least two segments that are disconnected from each other; and

wherein the first light board includes a first straight portion attached on the inner wall of a first straight segment of the two straight segments of the curved lamp tube, and a first curved portion attached to a first part of the curve segment of the curved lamp tube.

2. The curved LED tubular lamp as claimed in claim 1, wherein the curved segment comprises a middle connecting segment, and the middle connecting segment is separated into a first middle connecting segment and a second middle connecting segment, wherein the first middle connecting segment is part of the first light board, and the second middle connecting segment is part of the second light board.

3. The curved LED tubular lamp as claimed in claim 2, wherein the length of the first LED light board is equal to that of the second LED light board.

4. The curved LED tubular lamp as claimed in claim 3, wherein a separation part of the first LED light board and the second LED light board is located within the curved segment.

5. The curved LED tubular lamp as claimed in claim 1, wherein the curved LED tubular lamp further comprises one or two driving circuits, disposed in one or both of the straight segments of the curved LED tubular lamp.

6. The curved LED tubular lamp as claimed in claim 1, wherein the curved LED tubular lamp includes two straight tubes and a rear supporter disposed between the two straight tubes, and the rear supporter includes two pieces respectively having a protruding edge and a trench extend along the edge thereof.

7. The curved LED tubular lamp as claimed in claim 1, wherein:

the second light board includes a second straight portion attached on the inner wall of a second straight segment of the two straight segments of the curved lamp tube, and a second curved portion attached to a second part of the curve segment of the curved lamp tube.

8. The curved LED tubular lamp as claimed in claim 1, wherein:

a first set of the plurality of spacers that form notches are formed on the first curved portion; and

a second set of the plurality of spacers that form notches are formed on the second curved portion.

9. The curved LED tubular lamp as claimed in claim 8, wherein:

the first set of the plurality of spacers that form notches have a shape that fits together with a shape of the second set of the plurality of spacers that form notches.

10. The curved LED tubular lamp as claimed in claim 2, wherein the curved segment visually connects the first light board and the second light board.