Light Emitting Diode Lamp and Assembling Method Thereof

• US 20120268941A1
• Filed: 04/18/2012
• Published: 10/25/2012
• Est. Priority Date: 04/19/2011
• Status: Abandoned Application

• Current Assignee: Everlight Electronics Company Limited
• Original Assignee: Everlight Electronics Company Limited
• Inventors: Shih, Li-Wei, Hsu, Feng-Ting
• Application Number:
  US13/450,366
• Publication Number:
  US 20120268941A1
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 17/005 with keying means, i.e. for enabling the assembling of component parts in distinctive positions, e.g. for preventing wrong mounting
• CPC Class Codes: F21V 23/006 the substrate being distinct from the light source holder
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

A light emitting diode lamp according to an embodiment of the present disclosure includes a heat dissipation structure, a light emitting diode (LED) light source and a driver. The LED light source is thermally disposed over and electrically insulated from the heat dissipation structure. The LED light source includes at least one lateral surface on which an electrode is disposed. The driver is disposed under and electrically insulated from the heat dissipation structure. The driver includes an extended portion that is electrically coupled to the electrode by penetrating through the heat dissipation structure.

Claims

1. A light emitting diode (LED) lamp, comprising:

a heat dissipation structure;

an LED light source disposed over and electrically insulated from the heat dissipation structure, the LED light source including at least a side having an electrode; and

a driver disposed under and electrically insulated from the heat dissipation structure, the driver including at least an extended portion that is electrically coupled to the electrode by penetrating through the heat dissipation structure.

2. The LED lamp as recited in claim 1, wherein the heat dissipation structure includes at least one opening, and wherein the extended portion of the driver penetrates through the at least one opening and extends toward the LED light source to be electrically coupled to the electrode.

3. The LED lamp as recited in claim 1, wherein the heat dissipation structure includes a reception slot in which the LED light source is disposed.

4. The LED lamp as recited in claim 1, further comprising:

a lampshade, wherein the lampshade and the heat dissipation structure include at least one positioning slot and at least one positioning rib respectively received in the at least one positioning slot when the lampshade is assembled to the heat dissipation structure to cover the LED light source.

5. The LED lamp as recited in claim 1, further comprising:

a shell, wherein the shell and the heat dissipation structure include at least one positioning rib and at least one positioning slot in which the at least one positioning rib is respectively received.

6. The LED lamp as recited in claim 1, further comprising:

a shell that includes at least one positioning slot, wherein the driver includes a circuit board having one or more edges respectively received in the at least one positioning slot of the shell.

7. The LED lamp as recited in claim 6, wherein the driver further comprises at least one terminal that is electrically coupled to the circuit board and not coplanar with the circuit board, wherein the circuit board is electrically coupled to the extended portion of the driver, wherein the shell includes at least one opening through which the at least one terminal penetrates the shell.

8. A light emitting diode (LED) lamp, comprising:

a heat dissipation structure that includes a plurality of openings;

an LED light source coupled to the heat dissipation structure and including a plurality of electrodes;

a shell assembled to the heat dissipation structure; and

a driver disposed in the shell and including a plurality of extended portions, the LED light source and the driver disposed on two opposing sides of the heat dissipation structure, the plurality of extended portions respectively penetrating through the plurality of openings such that the extended portions extend toward the LED light source and are electrically coupled to the electrodes.

9. The LED lamp as recited in claim 8, wherein the heat dissipation structure includes a surface and a protrusion connected to the surface, wherein the LED light source includes a bottom surface that comprises a central portion and a peripheral portion such that the central portion is in contact with the protrusion and that the electrodes are disposed on the peripheral portion and spaced apart from the surface of the heat dissipation structure.

10. The LED lamp as recited in claim 8, wherein the heat dissipation structure includes a reception slot in which the LED light source is disposed.

11. The LED lamp as recited in claim 8, further comprising:

a lampshade that includes at least one positioning slot, wherein the heat dissipation structure includes at least one positioning rib respectively received in the at least one positioning slot of the lampshade such that the lampshade is assembled to the heat dissipation structure to cover the LED light source.

12. The LED lamp as recited in claim 8, wherein the shell includes at least one positioning rib and the heat dissipation structure includes at least one positioning slot respectively receiving the at least one positioning rib of the shell.

13. The LED lamp as recited in claim 8, wherein the shell includes at least one positioning slot, and wherein the driver includes a circuit board having one or more edges respectively received in the at least one positioning slot of the shell.

14. The LED lamp as recited in claim 13, wherein the driver further includes a plurality of terminals that are electrically coupled to and not coplanar with the circuit board, wherein the circuit board is electrically coupled to at least some of the extended portions, and wherein the shell includes a plurality of openings such that the terminals extend out of the shell through the openings of the shell.

15. A method of assembling a light emitting diode (LED) lamp, comprising:

providing a heat dissipation structure that includes a plurality of openings, a surface, and a protrusion connected to the surface;

providing an LED light source that includes a bottom surface and a plurality of electrodes, the bottom surface comprising a central portion and a peripheral portion with the electrodes disposed on the peripheral portion;

connecting the central portion of the LED light source to the protrusion of the heat dissipation structure such that the electrodes are spaced apart from the surface of the heat dissipation structure;

providing a shell;

disposing a driver, that includes a plurality of extended portions, inside the shell; and

assembling the shell to the heat dissipation structure such that;

the LED light source and the driver are disposed on two opposing sides of the heat dissipation structure, and

the extended portions are electrically coupled to the electrodes of the LED light source by penetrating through the openings of the heat dissipation structure.

16. The method as recited in claim 15, further comprising:

providing a lampshade; and

assembling the lampshade to the heat dissipation structure such that the lampshade covers the LED light source.

17. The method as recited in claim 16, wherein the heat dissipation structure includes at least one positioning rib, wherein the lampshade includes at least one positioning slot, and wherein assembling the lampshade to the heat dissipation structure comprises the at least one positioning slot of the lampshade respectively receiving the at least one positioning rib of the heat dissipation structure when the lampshade is assembled to the heat dissipation structure.

18. The method as recited in claim 15, wherein the shell includes at least one positioning rib, wherein the heat dissipation structure includes at least one positioning slot, and wherein assembling the shell to the heat dissipation structure comprises the at least one positioning slot of the heat dissipation structure respectively receiving the at least one positioning rib of the shell when the shell is assembled to the heat dissipation structure.

19. The method as recited in claim 15, wherein the shell includes at least one positioning slot, wherein the driver includes a circuit board, and wherein disposing the driver inside the shell comprises respectively receiving one or more edges of the circuit board of the driver in the at least one positioning slot of the shell.

20. The method as recited in claim 19, wherein the driver further includes a plurality of terminals that are electrically coupled to and not coplanar with the circuit board, wherein the circuit board is electrically coupled to the extended portions, wherein the shell includes a plurality of openings, and wherein disposing the driver inside the shell comprises extending the terminals out of the shell through the openings of the shell.