Illumination device

• US 20070081338A1
• Filed: 10/06/2005
• Published: 04/12/2007
• Est. Priority Date: 10/06/2005
• Status: Active Grant

• Current Assignee: Thermalking Technology International Co.
• Original Assignee: Thermalking Technology International Co.
• Inventors: Kuan, Hsin-Ning
• Granted Patent: US 7,278,761 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21S 8/086 with lighting device attached sideways of the standard, e.g. for roads and highways
• CPC Class Codes: F21V 29/67 characterised by the arrangement of fans
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An illumination device includes a body. The inner space of the body is divided into two parts as a first part and a second part. A heat dissipating module is disposed in the first part. The second part is fully sealed so that dusts, water and insects may be kept off. A plurality of light emitting units are disposed in the second part so as to provide light. The light emitting units are connected with the heat dissipating module in the first part. Hence, heat generated by the light emitting units may be dissipated out of the body and so that the illumination device of the present invention may have a longer service life.

Claims

1. An illumination device, comprising a body and a pole connected with the body, wherein the body includes:

a first part, which is in communication with the ambient surrounding;

a second part, which is fully sealed;

a heat dissipating module disposed in the first part; and

a plurality of light emitting units disposed in the second part and connected with the heat dissipating module so as to dissipate heat into the ambient surrounding.

2. The illumination device as in claim 1, wherein the heat dissipating module includes at least one set of heat dissipating fins, a fan and a heat guiding piece.

3. The illumination device as in claim 2, wherein the heat guiding piece has a U shape or a linear shape or an L shape.

4. The illumination device as in claim 1, wherein the light emitting units are light emitting diodes.

5. The illumination device as in claim 1, further comprising a plurality of venting slots formed on each side of the first part

6. An illumination device, comprising a body and a pole connected with the body, wherein the body includes:

an upper cover;

a lower cover, which is transparent and engaged with the upper cover in a very tight manner;

a dividing plate, which divides an inner space of the body into two parts as a first part and a second part;

a heat conducting plate, which is fitted onto an opening of the dividing plate and extends into the second part;

a plurality of light emitting units, which are fitted on a underside of the heat conducting plate; and

a heat dissipating module, which is disposed on a top surface of the heat conducting plate, wherein heat generated by the light emitting units is transmitted to the heat dissipating module and is dissipated out of the body.

7. The illumination device as in claim 6, wherein a plurality of venting slots are formed on each side of the upper cover.

8. The illumination device as in claim 6, wherein the heat dissipating module includes at least one set of heat dissipating fins, a fan and a heat guiding piece and wherein one end of the heat guiding piece is connected with the heat conducting plate and the other end is connected with the heat dissipating fins, the fan being disposed to the heat dissipating fins.

9. The illumination device as in claim 8, wherein the heat guiding piece has a U shape or a linear shape or an L shape.

10. The illumination device as in claim 6, wherein the light emitting units are light emitting diodes.

11. An illumination device, comprising a body and a pole connected with the body, wherein the body includes:

an upper cover;

a lower cover, which is transparent and engaged with the upper cover in a very tight manner;

a dividing plate, which divides an inner space of the body into two parts as a first part and a second part;

a heat dissipating module, which is disposed in the first part and includes at least a heat guiding piece, wherein a portion of the heat guiding piece extends into the second part;

a heat conducting plate, which is disposed on the said portion of the heat guiding piece in the second part; and

a plurality of light emitting units, which are fitted on the heat conducting plate,

wherein heat generated by the light emitting units is transmitted via the heat guiding piece to the heat dissipating module and then is dissipated out of the body.

12. The illumination device as in claim 11, wherein the heat guiding piece has a U shape or a linear shape or an L shape.

13. The illumination device as in claim 11, wherein the heat dissipating module includes two or more heat guiding pieces.

14. The illumination device as in claim 11, wherein the heat dissipating module includes two or more sets of heat dissipating fins and fans.

15. The illumination device as in claim 11, wherein a cross section of the heat conducting plate is polygonal or rectangular.

16. The illumination device as in claim 11, wherein the light emitting units are light emitting diodes.

17. The illumination device as in claim 11, wherein a plurality of venting slots are provided on each side of the upper cover.