LED tube lamp

• US 10,082,250 B2
• Filed: 03/31/2016
• Issued: 09/25/2018
• Est. Priority Date: 12/05/2014
• Status: Active Grant

• Current Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
• Original Assignee: Jiaxing Super Lighting Electric Appliance Co., Ltd.
• Inventors: Jiang, Tao
• Primary Examiner(s): STANFORD, CHRISTOPHER J
• Application Number:
  US15/087,092
• Publication Number:
  US 20160215937A1
• Time in Patent Office: 908 Days
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• 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: F21K 9/275 Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings F21K9/278 takes precedence
• CPC Class Codes: F21K 9/278 Arrangement or mounting of circuit elements integrated in the light source
• 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 19/009 the support means engaging the vessel of the source
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 23/02 the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
• CPC Class Codes: F21V 23/023 Power supplies in a casing F21V23/003 takes precedence
• CPC Class Codes: F21V 25/04 breaking the electric circuit
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21V 3/061 the material being glass
• CPC Class Codes: F21V 3/0615 the material diffusing light, e.g. translucent glass
• CPC Class Codes: F21V 3/10 characterised by coatings
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• 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 2115/10 Light-emitting diodes [LED]

Abstract

An LED tube lamp including a glass lamp tube, an end cap disposed at one end of the glass lamp tube, a power supply provided inside the end cap, an LED light strip disposed inside the glass lamp tube with a plurality of LED light sources mounted on. The LED light strip has a bendable circuit sheet to electrically connect the LED light sources with the power supply. The glass lamp tube and the end cap are secured by a highly thermal conductive silicone gel. In addition, the end cap has at least one opening on surface to dissipate heat resulting from the power supply.

Claims

1. An LED tube lamp, comprising:

a glass lamp tube;

two end caps, each of the end caps disposed at one end of the glass lamp tube, wherein at least one of the end caps comprises a socket, and at least one opening on surface to dissipate heat;

a power supply provided inside the end cap, wherein the power supply has a metal pin at one end, the end cap has a hollow conductive pin to accommodate the metal pin of the power supply, and the socket is for being inserted with the power supply;

an LED light strip disposed inside the glass lamp tube with a plurality of LED light sources mounted on the LED light strip;

wherein the LED light strip has bendable, substantially planar circuit sheet electrically connecting the LED light sources with the power supply via a bent portion of the circuit sheet, the length of the bendable circuit sheet is larger than the length of the glass lamp tube, and the glass lamp tube and the end cap are secured by a thermal conductive silicone gel.

2. The LED tube lamp of claim 1, wherein the at least one opening on surface is to dissipate heat resulting from the power supply.

3. The LED tube lamp of claim 1, wherein the at least one opening is located on an end surface of the end cap.

4. The LED tube lamp of claim 3, wherein the at least one opening is adjacent to an edge of the end surface of the end cap.

5. The LED tube lamp of claim 3, wherein the end cap comprises at least three of the openings arranged to form a circle or a partial circle.

6. The LED tube lamp of claim 3, wherein the end cap comprises at least three of the openings arranged to form concentric circles or concentric partial circles.

7. The LED tube lamp of claim 1, wherein at least one opening is located on an end surface of the end cap, and at least one opening is located on an outer circumferential surface of the end cap.

8. The LED tube lamp of claim 1, wherein the at least one opening is located on an outer circumferential surface of the end cap.

9. An LED tube lamp, comprising:

a glass lamp tube;

two end caps with different sizes respectively disposed at two ends of the glass lamp tube, wherein at least one of the two end caps comprises an electrically insulating tubular part sleeved with the end of the lamp tube, and at least one opening on surface to dissipate heat;

a power supply provided inside the end cap;

an LED light strip disposed inside the glass lamp tube with a plurality of LED light sources mounted on the LED light strip;

wherein the LED light strip has bendable, substantially planar circuit sheet electrically connecting the LED light sources with the power supply via a bent portion of the circuit sheet, the length of the bendable circuit sheet is larger than the length of the glass lamp tube, and the glass lamp tube and the end cap are secured by a thermal conductive silicone gel.

10. The LED tube lamp of claim 9, wherein the at least one opening on surface is to dissipate heat resulting from the power supply.

11. The LED tube lamp of claim 9, wherein the at least one opening is located on an end surface of the electrically insulating tubular part.

12. The LED tube lamp of claim 11, wherein the at least one opening is adjacent to an edge of the end surface of the electrically insulating tubular part.

13. The LED tube lamp of claim 11, wherein the end cap comprises at least three of the openings arranged to form a circle or a partial circle.

14. The LED tube lamp of claim 11, wherein the end cap comprises at least three of the openings arranged to form concentric circles or concentric partial circles.

15. The LED tube lamp of claim 9, wherein at least one opening is located on an end surface of the electrically insulating tubular part, and at least one opening is located on an outer circumferential surface of the electrically insulating tubular part.

16. The LED tube lamp of claim 9, wherein the at least one opening is located on an outer circumferential surface of the electrically insulating tubular part.