LED ROOM LIGHT

• US 20100289407A1
• Filed: 05/12/2010
• Published: 11/18/2010
• Est. Priority Date: 05/12/2009
• Status: Active Grant

• Current Assignee: David F. Shaw, Leroy E. Anderson
• Original Assignee: David F. Shaw, Leroy E. Anderson
• Inventors: SHAW, DAVID F., ANDERSON, LEROY E.
• Granted Patent: US 8,952,613 B2
• Time in Patent Office: Days
• US Class Current: 315/35
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21V 29/506 of globes, bowls or cover glasses
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21Y 2107/40 on the sides of polyhedrons, e.g. cubes or pyramids
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

Disclosed is a light bulb which utilizes LEDs which replaces an incandescent light bulb in a fixture for incandescent light bulbs. The LED light bulb includes a multi-faceted head on which multiple LEDs are placed, with the multi-faceted head being in contact with heat dissipation structures. The heat dissipation structures include a heat transfer column which extends from the LEDs to the base of the bulb. A removable cover is enclosed which has openings for air circulation within the globe of the light bulb.

Claims

1. An LED light bulb for use with a socket for incandescent bulbs, comprising:

a bulb base, comprising a conductive socket with a first electrode at an apex of said socket, and a second electrode in electrical connection with a sidewall of said bulb base, with said electrodes configured to physically and electrically engage a standard light bulb socket configured for incandescent bulbs;

a generally cylindrical radiator section attached adjacent to said bulb base, said radiator section with at least one generally circular radiator fin, said radiator section for expelling heat from said bulb;

a globe base attached to said radiator section, said globe base configured for attachment of a globe, said globe serving to protect said LED from contact with foreign objects;

a control circuit including electronics components for powering and regulating electricity to an LED light;

at least one LED positioned inside said globe on said globe base, with said LED electrically connected to said first and second electrode by electrical connections, and configured to emit light when energized, with said LED in thermal contact with said bulb base, said globe base, and said radiator section.

2. The LED light bulb of claim 1 in which said bulb base, said radiator section and said globe base define a hollow core which surrounds a heat conductive/electricity non-conductive column, with said column having a base end and an LED end, said column in thermal contact with said LED light, and with said LED mounted on said LED end of column.

3. The LED light bulb of claim 2 in which said column is comprised of heat conductive and electricity non-conductive potting material, said potting material in thermal contact with said LED and said radiator section, for insulating said electrical connections from electricity, and for conducting heat from said LED to said radiator section.

4. The LED light bulb of claim 1 in which said globe is removable from said globe base.

5. The LED light bulb of claim 2 in which said column extends above said globe base, with said LED end of said column extending toward an interior of said globe.

6. The LED light bulb of claim 2 in which said control circuit is mounted on a circuit board positioned in said column.

9. The LED based light bulb of claim 1 in which said radiator section further comprises a plurality of radiator fins for expelling heat produced by said at least one LED.

10. The LED light bulb of claim 1 in which said radiator section is comprised of two of more adjacent radiator rings with radiator fins.

11. The LED based light bulb of claim 3 in which said column further comprises a centrally sloped crimp ring, which provides increased physical connection between said metallic tube and said epoxy core.

12. The LED based light bulb of claim 2 in which said LED on said column is directed in an opposite direction from said bulb base, with said LED end of said column terminating in a multi faceted bulbous head, with each facet configured for mounting one or more LEDs with each facet at a different angle from other facets, and with LEDs on said facets directed in a different direction from other LEDs, for providing light in different directions for different zones of a room and for improving a CRI of the bulb.

13. The LED based light bulb of claim 2 in which said column extends into said bulb base to provide added structural strength to said base, and for thermal conduction of heat.

14. The LED based light bulb of claim 1, in which said electronic circuitry is configured to function as one or more devices selected from the list comprising an engine, a converter, a transformer, and a capacitor.

15. The LED based light bulb of claim 1 in which said globe further comprises one or more openings for air circulation to add convection by air movement from inside said globe.

16. The LED based light bulb of claim 13 in which said openings for air circulation include an opening adjacent said bulb top edge, and an opening near said globe top.

17. The LED based light bulb of claim 1 in which said globe has a light diffusing coating.

7. An LED light bulb for use with a socket for incandescent bulbs, comprising:

a bulb base, comprising a conductive socket with a first electrode at an apex of said socket, and a second electrode in electrical connection with a sidewall of said bulb base, with said electrodes configured to physically and electrically engage a standard light bulb socket configured for incandescent bulbs;

a generally cylindrical radiator section attached adjacent to said bulb base, said radiator section with at least one generally circular radiator fin, said radiator section for expelling heat from said bulb;

a globe base attached to said radiator section, said globe base configured for attachment of a globe, said globe serving to protect said LED from contact with foreign objects and being removable from said globe base;

a control circuit including electronics components for powering and regulating electricity to an LED light;

at least one LED positioned inside said globe on said globe base, with said LED electrically connected to said first and second electrode by electrical connections, and configured to emit light when energized, with said LED in thermal contact with said bulb base, said globe base, and said radiator section;

a heat conducting column extending from said bulb base, through said radiator section and said globe base, and extending above said globe base, said column comprising heat conductive/electricity non-conductive material, with said column having a base end and an LED end, said column in thermal contact with said LED light and encasing said control circuit, and with said LED mounted on said LED end of column.

8. The LED based light bulb of claim 7 in which said column is further comprised of one or more conductive rods, each rod with an LED end and a base end, and extending from a point adjacent to an LED through and encased in said column, for improved heat movement from said LED through said column.

18. An LED light bulb for use with a socket for incandescent bulbs, comprising:

a bulb base, comprising a conductive socket with a first electrode at an apex of said socket, and a second electrode in electrical connection with a sidewall of said bulb base, with said electrodes configured to physically and electrically engage a standard light bulb socket configured for incandescent bulbs;

a generally cylindrical radiator section attached adjacent to said bulb base, said radiator section with at least one generally circular radiator fin, said radiator section for expelling heat from said bulb;

a globe base attached to said radiator section, said globe base configured for attachment of a globe, said globe serving to protect said LED from contact with foreign objects and being removable from said globe base;

a control circuit including electronics components for powering and regulating electricity to an LED light;

at least one LED positioned inside said globe on said globe base, with said LED electrically connected to said first and second electrode by electrical connections, and configured to emit light when energized, with said LED in thermal contact with said bulb base, said globe base, and said radiator section;

a heat conducting column extending from said bulb base, through said radiator section and said globe base, and extending above said globe base, said column terminating in a multi faceted bulbous head, with each facet configured for mounting one or more LEDs, with each facet at a different angle from other facets, and with LEDs on said facets directed in a different direction from other LEDs, for providing light in different directions for different zones of a room, said column comprised of heat conductive/electricity non-conductive material, with said column having a base end and an LED end, said column in thermal contact with said LED light and encasing said control circuit, and with said LED mounted on said LED end of column.

19. The LED based light bulb of claim 18 in which said column is further comprised of one or more conductive rods, each rod with an LED end and a base end, and extending from a point adjacent to an LED through and encased in said column, for improved heat movement from said LED through said column.

20. An LED light bulb for use with a socket for incandescent bulbs, comprising:

a bulb base, comprising a conductive socket with a first electrode at an apex of said socket, and a second electrode in electrical connection with a sidewall of said bulb base, with said electrodes configured to physically and electrically engage a standard light bulb socket configured for incandescent bulbs;

a generally cylindrical radiator section attached adjacent to said bulb base, said radiator section with at least one generally circular radiator fin, said radiator section for expelling heat from said bulb;

a globe base attached to said radiator section, said globe base configured for attachment of a globe, said globe serving to protect said LED from contact with foreign objects and being removable from said globe base;

a control circuit including electronics components for powering and regulating electricity to an LED light;

at least one LED positioned inside said globe on said globe base, with said LED electrically connected to said first and second electrode by electrical connections, and configured to emit light when energized, with said LED in thermal contact with said bulb base, said globe base, and said radiator section;

a heat conducting column extending from said bulb base, through said radiator section and said globe base, and extending above said globe base, said column terminating in a multi faceted head, with each facet configured for mounting one or more LEDs, with each facet at a different angle from other facets and made of a heat conducting material, and with LEDs on said facets directed in a different direction from other LEDs, for providing light in different directions for different zones of a room, said column comprised of heat conductive/electricity non-conductive material, with said column having a base end and an LED end, said column in thermal contact with said LED light and encasing said control circuit, and with said LED mounted on said LED end of column in close proximity to a heat transfer structure with thermal contact with said bulb base.