Completely plastic LED tube light and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9568176-B2
Application number	US-201214348059-A
Country	US
Kind code	B2
Filing date	Sep 7, 2012
Priority date	Sep 30, 2011
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A completely plastic LED tube light, may include plastic shell comprising wires embedded therein, wherein two or more projections having greater dimensions than that of the wires are formed on the wires, end caps located at two ends of the plastic shell, respectively, and LEDs positioned in a space enclosed by the plastic shell and the end caps. A method for manufacturing the completely plastic LED tube light is also disclosed.

First claim

The invention claimed is:

1. A completely plastic LED tube light, comprising:
plastic shell comprising wires embedded therein, wherein the embedded wires have formed thereon two or more projections whose dimensions are greater than that of the embedded wires;
end caps located at two ends of the plastic shell, respectively; and
LEDs positioned in a space enclosed by the plastic shell and the end caps.

2. The completely plastic LED tube light according to claim 1 , wherein the wires are embedded into the plastic shell in an extrusion process.

3. The completely plastic LED tube light according to claim 1 , wherein the plastic shell is made of polycarbonate or PMMA.

4. The completely plastic LED tube light according to claim 1 , wherein the wires extend entire or part of the lengths of the plastic shell.

5. The completely plastic LED tube light according to claim 1 , wherein the wires are made of materials having less stretch than plastic.

6. The completely plastic LED tube light according to claim 1 , wherein the wires are made of metals.

7. The completely plastic LED tube light according to claim 6 , wherein the wires are made of copper or steel.

8. The completely plastic LED tube light according to claim 1 , wherein the wires and the projections are formed integrally or formed separately and then secured together.

9. The completely plastic LED tube light according to claim 1 , wherein the wires and the projections are made of same or different materials.

10. The completely plastic LED tube light according to claim 1 , wherein the projections are of spherical, or ellipsoid or cube shape.

11. The completely plastic LED tube light according to claim 1 , wherein the projections are made of metals.

12. The completely plastic LED tube light according to claim 11 , wherein the projections are made of copper or steel.

13. The completely plastic LED tube light according to claim 1 , wherein the wires having the projections are formed in a mounting part of the plastic shell.

14. The completely plastic LED tube light according to claim 1 , wherein the wires having the projections are formed in both of a mounting part and a transparent part of the plastic shell.

15. The completely plastic LED tube light according to claim 1 , wherein the wires having the projections are arranged symmetrically in the plastic shell with respect to an axis perpendicular to a wall or other mounting faces.

16. A method for manufacturing a completely plastic LED tube light, the method comprising:
delivering raw materials for making plastic shell into an inlet of an extrusion device for manufacturing the completely plastic LED tube light;
continuously embedding wires having projections into the raw materials of liquid phase in a direction by a wire feeding device;
extruding solid plastic shell having the wires with projections from outlets of the extrusion device by the extrusion device; and
assembling the plastic shell and other parts of the completely plastic LED tube light together.

Assignees

• Ye Zesheng
• Dai Xuewei
• Ku Nimchung
• Tjaco Middel
• Osram Gmbh

Inventors

• Ye Zesheng
• Dai Xuewei
• Ku Nimchung
• Tjaco Middel

Classifications

• Y10T29/49117

  Conductor or circuit manufacturing · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21K9/90 Primary

  Methods of manufacture · CPC title

• F21V23/002 Primary

  Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm · CPC title

• F21Y2101/00

  Point-like light sources · CPC title