Lighting assembly

• US 10,047,912 B2
• Filed: 10/13/2014
• Issued: 08/14/2018
• Est. Priority Date: 10/15/2013
• Status: Active Grant

• Current Assignee: Feit Electric Company Incorporated
• Original Assignee: LiFi Labs, Inc. (Buddy Technologies Ltd.)
• Inventors: Bosua, Philip Anthony, Alexander, Marc
• Primary Examiner(s): GRAMLING, SEAN P
• Application Number:
  US14/512,669
• Publication Number:
  US 20150103515A1
• Time in Patent Office: 1,401 Days
• Field of Search: None
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21S 9/022 Emergency lighting devices
• CPC Class Codes: F21V 19/0035 the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 23/0464 the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 29/85 characterised by the material liquid coolants F21V29/56
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2107/20 on convex supports or substrates, e.g. on the outer surface of spheres
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F21Y 2115/15 Organic light-emitting diodes [OLED]
• CPC Class Codes: H05B 45/48 having LEDs organised in strings and incorporating parallel shunting devices
• CPC Class Codes: H05B 47/19 via wireless transmission

Abstract

A lighting assembly including a shell, wherein the shell includes an inner wall defining an inner lumen, an outer wall encircling the inner wall, a set of radial fins connecting the inner and outer walls, the set of fins cooperatively defining a set of cooling channels between adjacent fins, the inner wall, and the outer wall; an insert removably mounted within the inner lumen, the insert defining a power storage lumen; a power storage unit arranged within the power storage lumen; a circuit board coupled to the power storage unit, the circuit board comprising a processor and communication module; a lighting module electrically connected to the circuit board, wherein the lighting module includes a substrate and a set of light emitting elements mounted to a first broad face of the substrate.

Claims

1. A lighting assembly, comprising:

a thermally conductive shell, comprising;

a thermally conductive inner wall defining an inner lumen;

a thermally conductive outer wall concentrically arranged about the inner wall;

a thermally conductive set of fins extending radially between the inner wall and the outer wall;

a set of fluid channels, each fluid channel cooperatively defined between the inner wall, outer wall, and a first and second adjacent fin;

a thermally insulative insert removably coupled within the inner lumen, the insert defining a power storage lumen and a first open end;

a base mounted to a second end of the insert opposing the first open end, the base configured to removably couple to a threaded socket; and

a battery arranged within the power storage lumen and electrically connected to the base;

wherein;

the outer wall of the shell comprises a thermally conductive plastic; and

a first thermal conductivity of the thermally conductive plastic is greater than a second thermal conductivity of the insert.

2. The lighting assembly of claim 1, wherein the shell and insert are cylindrical.

3. The lighting assembly of claim 1, further comprising a thermally conductive cap extending across an end of the inner lumen, the thermally conductive cap configured to mount a light emitting module to the shell.

4. The lighting assembly of claim 3, wherein the thermally conductive cap further comprises an antenna aperture through which an antenna extends.

5. The lighting assembly of claim 3, wherein the shell comprises a singular piece.

6. The lighting assembly of claim 1, wherein the fluid channel inlet is defined along a first end of the shell, and the fluid channel outlet is defined along a second end of the shell.

7. The lighting assembly of claim 4, wherein the antenna comprises a WiFi antenna.

8. A lighting assembly, comprising:

a shell, comprising;

an inner wall defining an inner lumen;

an outer wall encircling the inner wall;

a set of radial fins connecting the inner and outer walls, the set of fins cooperatively defining a set of cooling channels between adjacent fins, the inner wall, and the outer wall; and

a cap comprising an antenna aperture;

an insert removably mounted within the inner lumen, the insert defining a power storage lumen;

a power storage unit arranged within the power storage lumen;

a circuit board coupled to the power storage unit, the circuit board comprising;

a processor; and

a wireless communication module comprising an antenna extending through the antenna aperture beyond the cap;

a lighting module electrically connected to the circuit board, the lighting module comprising;

a substrate; and

a set of light emitting elements mounted to a first broad face of the substrate;

wherein;

the insert is thermally insulative;

the outer wall of the shell comprises a thermally conductive plastic; and

a first thermal conductivity of the thermally conductive plastic is substantially greater than a second thermal conductivity of the insert.

9. The lighting assembly of claim 8, wherein the first thermal conductivity is greater than 10 W/(m K).

10. The lighting assembly of claim 9, wherein the insert comprises a thermally insulative plastic.

11. The lighting assembly of claim 8, wherein the power storage unit is removably retained within the power storage lumen by the insert.

12. The lighting assembly of claim 8, wherein the circuit board is arranged within the power storage lumen and is supported by a circuit support plate extending along a chord of the power storage lumen.

13. The lighting assembly of claim 12, wherein the circuit support plate is thermally conductive.

14. The lighting assembly of claim 8, wherein the cap extends across an end of the inner lumen.

15. The lighting assembly of claim 14, wherein the substrate is substantially planar and mounts to the cap.

16. The lighting assembly of claim 8, wherein the substrate comprises a secondary antenna aperture, wherein the antenna extends through the secondary antenna aperture beyond the substrate.

17. The lighting assembly of claim 8, wherein the fins are stepped, comprising an elevated portion and a lowered portion.

18. The lighting assembly of claim 17, wherein the lowered portion is proximal the outer wall, wherein the outer wall is the same length as the lowered portion of the fin.

19. The lighting assembly of claim 18, further comprising a diffuser mounted to the shell.

20. The lighting assembly of claim 19, wherein the diffuser mounts to the outer wall.

21. The lighting assembly of claim 8, wherein the power storage unit is a battery.

22. The lighting assembly of claim 8, wherein a ratio between the first thermal conductivity and the second thermal conductivity is greater than 10.

23. The lighting assembly of claim 8, wherein the antenna comprises a WiFi antenna.