LED bulb with heat removal device

• US 20110001417A1
• Filed: 01/15/2008
• Published: 01/06/2011
• Est. Priority Date: 01/15/2008
• Status: Abandoned Application

• Current Assignee: Albert Stekelenburg
• Original Assignee: Albert Stekelenburg
• Inventors: Stekelenburg, Albert
• Application Number:
  US12/007,811
• Publication Number:
  US 20110001417A1
• Time in Patent Office: Days
• US Class Current: 313/46
• 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: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• 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 2115/10 Light-emitting diodes [LED]

Abstract

A LED bulb includes a housing having a base mounted in an electrical socket; a heat removal device mounted on a lower portion of the housing for surrounding the remaining portion of the housing; a bulb formed of transparent material or being frosted, the bulb being mounted on a top edge of the heat removal device; a light source (e.g., Hi-Power LED) mounted on the heat removal device and the housing; and a circuit board received in the housing, the circuit board being electrically connected to the light source and the base respectively. Heat generated by the LED is adapted to conduct away by the heat removal device. In one embodiment, the heat removal device includes an inverted, truncated cone having a corrugated surface. In another embodiment, the cone includes a plurality of longitudinal, spaced latches formed around, the latches having an opening.

Claims

1. An LED light source comprising:

a housing having a base adapted to mount in an electrical socket;

heat removal means formed of conductive material and mounted on a lower portion of the housing for surrounding the remaining portion of the housing;

a bulb formed of transparent material or being frosted, the bulb being mounted on a top edge of the heat removal means;

a light source mounted on the heat removal means and the housing, the light source being adapted to emit light to pass the bulb; and

a circuit board received in the housing, the circuit board being electrically connected to the light source and the base respectively,

wherein heat generated by the light source is adapted to conduct away by the heat removal means.

2. The LED light source of claim 1, wherein the light source is an LED.

3. The LED light source of claim 1, wherein the light source is a Hi-Power LED.

4. The LED light source of claim 1, wherein the heat removal means is an integral member.

5. The LED light source of claim 1, wherein the heat removal means comprises an inverted, truncated cone and a disc-shaped mounting member secured to the top of the cone with the light source secured thereon such that heat generated by the light source is adapted to conduct away through the mounting member and the cone.

6. The LED light source of claim 5, wherein the cone includes a plurality of longitudinal, spaced heat radiating grooves formed around.

7. The LED light source of claim 5, wherein the cone includes a plurality of longitudinal, spaced latches formed around, the latches having an opening.