LED lamp with rearward extending heatsink

Patent metadata

Field	Value
Publication number	US-10139091-B2
Application number	US-201615047604-A
Country	US
Kind code	B2
Filing date	Feb 18, 2016
Priority date	Feb 18, 2015
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A lamp having a front and rear orientation, comprising: (a) a body containing at least one light emitting diode (LED); (b) an electrical connector for operatively providing power to said LED, said electrical connector being rearward of said body and defining a connection plane between said electrical connector and said body, said electrical connector being configured for electrical connection to an electrical interface; and (c) at least one heat sink in thermal communication with at least one of said LED or said driver, said at least one heat sink having a rearward portion extending rearward from said connection plane and enveloping at least a portion of said electrical connector.

First claim

What is claimed is:

1. A lamp for replacing a standard light bulb having a standard electrical connector, said lamp having a front and rear orientation and comprising:
a body containing at least one light emitting diode (LED);
an electrical connector for operatively providing power to said LED, said electrical connector being one of an Edison screw-type connector or a pin-type connector, said electrical connector being rearward of said body and defining a connection plane between said electrical connector and said body, said electrical connector being configured for electrical connection to an electrical interface; and
at least one heat sink in thermal communication with at least one of said LED or said driver, said at least one heat sink having a rearward portion extending rearward from said connection plane and enveloping at least a portion of said electrical connector.

2. The lamp of claim 1 , wherein said rearward portion, envelops said electrical connector.

3. The lamp of claim 2 , wherein said electrical connector has a distal end, and said rearward portion extends beyond said distal end.

4. The lamp of claim 1 , wherein said rearward portion comprises at least 20% of the mass of said heat sink.

5. The lamp of claim 1 , wherein said rearward portion comprises at least 50% of the mass of said heat sink.

6. The lamp of claim 1 , wherein said heat sink also comprise a forward portion forward of said rearward portion, wherein the ratio of mass of the rearward portion to said forward portion is at least 1:4.

7. The lamp of claim 6 , wherein said ratio is at least 1:2.

8. The lamp of claim 7 , wherein said ratio is at least 1:1.

9. The lamp of claim 1 , wherein said heat sink also comprise a forward portion forward, of said rearward portion, wherein said LED defines a light plane, wherein said light plane is in said forward portion.

10. The lamp of claim 9 , wherein said light plane is in the forward half of said forward portion.

11. The lamp of claim 10 , wherein said light plane is in the forward quarter of said forward portion.

12. The lamp of claim 1 , wherein said rearward portion defines an opening to receive at least a portion of said electrical interface.

13. The lamp of claim 12 , wherein said opening is only slightly larger than the diameter of said electrical interface such that inserting said electrical interface in said opening aligns said electrical connector with said electrical interface.

14. The lamp of claim 1 , further comprising driver circuitry for driving said LED and wherein said electrical connector operatively providing power to said LED comprises said electrical connector being electrically connected to said driver circuitry for delivering power to said driver circuitry.

15. The lamp of claim 14 , wherein said driver circuitry is at least partially within said electrical connector.

16. The lamp of claim 1 , wherein said Edison screw-type electrical connector is selected from Table 1.

17. The lamp of claim 1 , wherein said pin-type electrical connector is selected from Table 2.

Assignees

• Soraa Inc

Inventors

• Smitt Willem
• Pearson Dave
• Schlegov Denis

Classifications

• F21V29/773

  the planes containing the fins or blades having the direction of the light emitting axis · CPC title

• F21V23/06 Primary

  the elements being coupling devices {, e.g. connectors} · CPC title

• F21S8/06

  by suspension · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21K9/237

  Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases (F21K9/238 takes precedence) · CPC title