Light including a heat sink and LEDs coupled to the heat sink

• US 10,066,827 B2
• Filed: 12/21/2017
• Issued: 09/04/2018
• Est. Priority Date: 02/04/2015
• Status: Active Grant

• Current Assignee: Milwaukee Electric Tool Corporation (Techtronic Industries Company Limited)
• Original Assignee: Milwaukee Electric Tool Corporation (Techtronic Industries Company Limited)
• Inventors: Harvey, Kyle, McIntyre, Ross, Proeber, David, Isaacs, Jason, Schermerhorn, Joshua, Cornell, Brian
• Primary Examiner(s): Ly, Toan
• Application Number:
  US15/851,013
• Publication Number:
  US 20180112863A1
• Time in Patent Office: 257 Days
• Field of Search: 362190
• CPC Class Codes: F21L 14/00 Electric lighting devices without a self-contained power source, e.g. for mains connection
• CPC Class Codes: F21L 4/00 Electric lighting devices with self-contained electric batteries or cells
• CPC Class Codes: F21L 4/08 characterised by means for in situ recharging of the batteries or cells
• CPC Class Codes: F21S 9/02 the power supply being a battery or accumulator
• CPC Class Codes: F21V 23/006 the substrate being distinct from the light source holder
• CPC Class Codes: F21V 23/0435 activated by remote control means
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/78 with helically or spirally arranged fins or blades
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21Y 2101/00 Point-like light sources
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light includes a housing and a heat sink extending upward from a lower portion of the housing. The heat sink includes a central body that defines a central aperture, a plurality of interior fins extending into the central aperture, and a plurality of light support surfaces arranged around a perimeter of the central body. The light also includes a first plurality of LEDs coupled to the light support surfaces and arranged to emit light in a 360 degree pattern, a second plurality of LEDs are supported on top of the heat sink and arranged to emit light upward, a power input supported on the lower portion of the housing, a battery pack received in a battery port defined in the lower portion of the housing, and a control panel is supported on the lower portion of the housing to control operation of the LEDs.

Claims

1. A light comprising:

a housing having a bottom, a top, and a central axis extending through the bottom and the top, the housing including an upper portion and a lower portion, the lower portion defining a battery port;

a heat sink extending upward from the lower portion of the housing, the heat sink including

a central body defining a central aperture extending along the central axis,

a plurality of interior fins extending from the central body into the central aperture,

a plurality of light support surfaces arranged around a perimeter of the central body, and

a top support member attached to tops of the plurality of light support surfaces;

a first plurality of LEDs coupled to the plurality of light support surfaces, the first plurality of LEDs arranged to emit light in a 360 degree pattern;

a second plurality of LEDs supported on a surface of the top support member that is perpendicular to the plurality of light support surfaces, the second plurality of LEDs arranged to emit light upward in a direction substantially parallel to the central axis;

a power input supported on the lower portion of the housing, the power input configured to connect to an external AC power source to power the first and second pluralities of LEDs;

a battery pack received in the battery port to power the first and second pluralities of LEDs; and

a control panel supported on the lower portion of the housing to control operation of the first and second pluralities of LEDs.

2. The light of claim 1, further comprising a plurality of legs coupled to the lower portion of the housing.

3. The light of claim 1, further comprising a power outlet supported on the lower portion of the housing, the power outlet configured to connect to another device to power the another device.

4. The light of claim 1, further comprising a charging circuit positioned within the housing and electrically coupled to the power input, the charging circuit operable to charge the battery pack.

5. The light of claim 1, wherein the control panel includes a power button and a light intensity control, the light intensity control operable to increase or decrease intensities of the first and second pluralities of LEDs.

6. The light of claim 1, wherein the upper portion of the housing operates as a lens.

7. The light of claim 1, wherein the first plurality of LEDs are supported on a plurality of circuit boards that are attached to the plurality of light support surfaces.

8. The light of claim 7, wherein the second plurality of LEDs is supported by a top support member attached to a top of the heat sink.

9. The light of claim 1, wherein the first and second plurality of LEDs are operable to be controlled remotely by a wireless communication scheme.

10. A light comprising:

a housing having a bottom, a top, and a central axis extending through the bottom and the top, the housing including an upper portion and a lower portion, the lower portion defining a battery port;

a heat sink extending upward from the lower portion of the housing and defining a central aperture extending along the central axis, the heat sink including a plurality of light support surfaces arranged around a perimeter of the heat sink, and a top support member attached to tops of the plurality of light support surfaces;

a first plurality of LEDs coupled to the plurality of light support surfaces, the first plurality of LEDs arranged to emit light in a 360 degree pattern;

a second plurality of LEDs supported on a surface of the top support member that is perpendicular to the plurality of light support surfaces, the second plurality of LEDs arranged to emit light upward in a direction substantially parallel to the central axis;

a power input supported on the lower portion of the housing, the power input configured to connect to an external AC power source to power the first and second pluralities of LEDs;

a battery pack received in the battery port to power the first and second pluralities of LEDs;

a charging circuit positioned within the housing and electrically coupled to the power input, the charging circuit operable to charge the battery pack; and

a control panel supported on the lower portion of the housing to control operation of the first and second plurality of LEDs.

11. The light of claim 10, wherein the first plurality of LEDs and the second plurality of LEDs are operable to be controlled remotely by a remote communication scheme.

12. The light of claim 11, wherein the control panel includes an indicator that operates to notify a user when the remote communication scheme is being used to control the light.

13. The light of claim 10, further comprising a power outlet supported on the lower portion of the housing, the power outlet configured to connect to another device to power the another device.

14. The light of claim 10, wherein the control panel includes a power button and a light intensity control, the light intensity control operable to increase or decrease intensities of the first and second pluralities of LEDs.

15. A light comprising:

a housing having a bottom, a top, and a central axis extending through the bottom and the top, the housing including an upper portion and a lower portion, the lower portion defining a battery port, the upper portion operating as a lens;

a plurality of legs coupled to the lower portion of the housing;

a heat sink extending upward from the lower portion and positioned within the upper portion of the housing, the heat sink defining a central aperture extending along the central axis, the heat sink including a plurality of light support surfaces arranged around a perimeter of the heat sink, and a top support member attached to tops of the plurality of light support surfaces;

a first plurality of LEDs coupled to the plurality of light support surfaces, the first plurality of LEDs arranged to emit light in a 360 degree pattern;

a second plurality of LEDs supported on a surface of the top support member that is perpendicular to the plurality of light support surfaces, the second plurality of LEDs arranged to emit light upward in a direction substantially parallel to the central axis;

a battery pack received in the battery port to power the first and second pluralities of LEDs; and

a control panel supported on the lower portion of the housing to control operation of the first and second pluralities of LEDs.

16. The light of claim 15, further comprising a power input supported on the lower portion of the housing, the power input configured to connect to an external AC power source to power the first and second pluralities of LEDs.

17. The light of claim 16, further comprising a power outlet supported on the lower portion of the housing, the power outlet configured to connect to another device to power the another device.

18. The light of claim 16, further comprising a charging circuit positioned within the housing and electrically coupled to the power input, the charging circuit operable to charge the battery pack.

19. The light of claim 15, wherein the control panel includes a power button and a light intensity control, the light intensity control operable to increase or decrease intensities of the first and second pluralities of LEDs.

20. The light of claim 15, wherein the first and second pluralities of LEDs are operable to be controlled remotely by a wireless communication scheme.