LED lamp having heat radiating housing

• US 8,167,460 B2
• Filed: 10/13/2009
• Issued: 05/01/2012
• Est. Priority Date: 06/01/2009
• Status: Expired due to Fees

• Current Assignee: Yu-Lin Chu
• Original Assignee: Yu-Lin Chu
• Inventors: Chu, Yu-Lin
• Primary Examiner(s): Negron, Ismael
• Application Number:
  US12/577,947
• Publication Number:
  US 20100301724A1
• Time in Patent Office: 931 Days
• Field of Search: 362/545, 362/547, 362/218, 362/294, 362/373, 362/646, 362/650, 362/649
• US Class Current: 362/294
• 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 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• 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]

Abstract

A lamp includes a housing unit and a light source mounted on the housing unit. The housing unit includes a housing and a plurality of heat radiating fins. The light source includes a support base having a first side provided with a plurality of light emitting members, a heat radiating assembly having a first end mounted on a second side of the support base and a heat conducting plate mounted on a second end of the heat radiating assembly.

Claims

1. A lamp, comprising:

a housing unit including;

a housing with an inside defining a receiving chamber having an end provided with an opening, and

a plurality of heat radiating fins each having an end provided with a pointed portion, the heat radiating fins mounted on the housing;

a light source mounted on the housing unit including;

a support base having a first side provided with a plurality of light emitting members exposed outwardly from the receiving chamber of the housing,

a heat radiating assembly having a first end mounted on a second side of the support base, and

a heat conducting plate mounted on a second end of the heat radiating assembly;

wherein the light source is received in the receiving chamber of the housing, such that the support base of the light source is located in the opening of the receiving chamber, and the support base of the light source is surrounded by the pointed portions of the heat radiating fins.

2. The lamp of claim 1, wherein

the heat radiating assembly of the light source includes a plurality of elongate rods;

the second side of the support base has a peripheral wall provided with a plurality of heat conducting grooves to receive the elongate rods of the heat radiating assembly.

3. The lamp of claim 1, wherein

the housing of the housing unit has a substantially cylindrical shape;

the receiving chamber of the housing has a substantially circular shape;

the support base of the light source has a substantially circular shape;

the heat conducting plate of the light source has a substantially circular shape.

4. The lamp of claim 1, wherein

the heat radiating fins of the housing unit are spaced from each other;

the pointed portions of the heat radiating fins are spaced from each other.

5. The lamp of claim 1, wherein

the heat radiating fins of the housing unit surround a peripheral wall of the housing;

the pointed portions of the heat radiating fins surround a peripheral wall of the opening of the receiving chamber.

6. The lamp of claim 1, wherein each of the heat radiating fins of the housing unit extends in a longitudinal direction of the housing.

7. The lamp of claim 1, wherein

the heat radiating fins of the housing unit are mounted outside of the housing;

the housing of the housing unit is located between the heat radiating fins of the housing unit and the light source.

8. The lamp of claim 1, wherein each of the light emitting members of the support base is surrounded by the pointed portions of the heat radiating fins.

9. The lamp of claim 1, wherein each of the light emitting members of the support base is exposed outwardly from the opening of the receiving chamber.

10. The lamp of claim 1, wherein

the heat radiating assembly of the light source is extended into the receiving chamber of the housing;

the heat conducting plate of the light source is extended into the receiving chamber of the housing.

11. The lamp of claim 1, wherein

the heat radiating assembly of the light source is located between the support base and the heat conducting plate;

the heat conducting plate of the light source is in contact with the housing of the housing unit.

12. The lamp of claim 1, wherein the support base of the light source has a substantially convex shape.

13. The lamp of claim 12, wherein the support base of the light source protrudes outwardly from the opening of the receiving chamber.

14. A lamp, comprising:

a housing unit including;

a housing with an inside defining a receiving chamber having an end provided with an opening, and

a plurality of heat radiating fins each having an end provided with a pointed portion, the heat radiating fins mounted on the housing;

a light source mounted on the housing unit including;

a support base having a first side provided with a plurality of light emitting members exposed outwardly from the receiving chamber of the housing,

a heat radiating assembly having a first end mounted on a second side of the support base, and

a heat conducting plate mounted on a second end of the heat radiating assembly;

wherein the light source is received in the receiving chamber of the housing, such that the support base of the light source is located in the opening of the receiving chamber

wherein the light source further includes a retaining ring mounted on the support base and located in the opening of the receiving chamber.

15. The lamp of claim 14, wherein the retaining ring of the light source is located between the support base of the light source and the housing of the housing unit.

16. A lamp, comprising:

a housing unit including;

a housing with an inside defining a receiving chamber having an end provided with an opening, and

a plurality of heat radiating fins each having an end provided with a pointed portion, the heat radiating fins mounted on the housing;

a light source mounted on the housing unit including;

a support base having a first side provided with a plurality of light emitting members exposed outwardly from the receiving chamber of the housing,

a heat radiating assembly having a first end mounted on a second side of the support base, and

a heat conducting plate mounted on a second end of the heat radiating assembly;

the second side of the support base has a peripheral wall provided with a heat conducting groove to receive the first end of the heat radiating assembly;

the heat conducting groove of the support base has a substantially honeycomb shape; and

the heat radiating assembly of the light source has a substantially honeycomb shape.