LED ROOM LIGHT WITH MULTIPLE LEDS AND RADIATOR FINS

• US 20130154465A1
• Filed: 12/14/2012
• Published: 06/20/2013
• Est. Priority Date: 12/14/2011
• Status: Active Grant

• Current Assignee: Leroy E. Anderson
• Original Assignee: Leroy E. Anderson
• Inventors: ANDERSON, LEROY E.
• Granted Patent: US 8,944,639 B2
• Time in Patent Office: Days
• US Class Current: 313/45
• 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: F21V 29/506 of globes, bowls or cover glasses
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• CPC Class Codes: F21V 29/77 with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
• 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: F21V 3/061 the material being glass
• CPC Class Codes: F21V 3/062 the material being plastics
• 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 multiple fins on a globe base, with an LED light on an outward facing side of each fin. The fins are in contact with heat dissipation structures, and they are adjacent to air vents which aid in heat dissipation. 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 formed of a conductive threaded cylinder which circumvolves said bulb base, with said second electrode comprising a base edge, with said electrodes configured to physically and electrically to 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, which is configured to expel heat from said bulb, with said bulb base and said radiator section forming an internal column;

a generally cylindrical globe base attached to said radiator section, said globe base having a generally planar top surface and a globe attachment surface on a periphery of said globe base;

a fin array attached to said top surface of said globe base, said fin array comprised of a plurality of fins arranged in a radial fashion radiating from a center of said globe base, with each fin having an angled outer surface directed outward from said globe base, and inner surfaces defining a central core;

a plurality of LED lights with each LED light positioned on said angled outer surface of said fins, and electrically connected to said first and second electrode by electrical connections, and configured to emit light when energized;

with said column filled with a heat conductive and electricity non-conductive material, said 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; and

a light passing globe covering said fin array and said LEDs, and covering said top surface of said globe base, with said LEDs configured to emit light when energized, and said globe providing a handling surface for a user to grip the light bulb during insertion into a socket, and to protect said LED from contact with foreign objects, with said LED light bulb configured to interfit with standard incandescent bulb sockets.

2. 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.

3. The LED based light bulb of claim 1 in which said angled outer surface of each fin is at an angle to the surface of the globe base of about 70 degrees or less.

4. The LED based light bulb of claim 1 in which said epoxy fills said bulb base to provide added structural strength to said base.

5. The LED based light bulb of claim 1 which further comprises an electronic circuitry to control the output of the LED lights.

6. The LED based light bulb of claim 5, 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.

7. The LED based light bulb of claim 1 in which said globe further comprises one or more openings for air circulation.

8. The LED based light bulb of claim 7 in which said openings for air circulation include an opening adjacent said bulb top edge, and an opening near said globe top.

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

10. The LED based light bulb of claim 1 which further comprises alternating air vent holes in the globe base and the globe side, so that every fin has an air vent hole on either side of each fin.