Outdoor high powder light-emitting diode illuminating equipment

• US 7,988,341 B2
• Filed: 04/12/2010
• Issued: 08/02/2011
• Est. Priority Date: 11/22/2006
• Status: Expired due to Fees

• Current Assignee: NeoBulb Technologies Inc
• Original Assignee: NeoBulb Technologies Inc
• Inventors: Chen, Jen-Shyan
• Primary Examiner(s): Ton, Anabel M
• Application Number:
  US12/758,352
• Publication Number:
  US 20100194273A1
• Time in Patent Office: 477 Days
• Field of Search: 362/294, 362/373, 362/544
• US Class Current: 362/373
• CPC Class Codes: F21V 17/12 by screwing
• CPC Class Codes: F21V 29/51 using condensation or evaporation of a fluid, e.g. heat pipes
• 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 29/767 the planes containing the fins or blades having directions perpendicular to the light emitting axis
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• CPC Class Codes: F21W 2131/10 Outdoor lighting
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The invention provides a light-emitting diode illuminating equipment. The light-emitting diode illuminating equipment of the invention includes a heat-dissipating plate device, a plurality of heat-dissipating fins, a diode light-emitting apparatus, a plurality of heat-conducting devices, and a shield device. The heat-dissipating fins extend from a surface of the heat-dissipating plate device. By tightly mounting the heat-conducting devices on the surface of the heat-dissipating plate device and disposing between the heat-dissipating fins, heat generated during the operation of the diode light-emitting apparatus is distributed uniformly on the heat-dissipating plate device and the heat-dissipating fins due to the high efficiency heat-conducting of the heat-conducting devices, and then is dissipated. Besides, the shield device has a waterproof passage for a power cord passing through to power a control circuit, such that the light-emitting diode illuminating equipment is adapted to be installed outdoors.

Claims

1. An light-emitting diode illuminating equipment, comprising:

a heat-dissipating plate device and a plurality of heat-dissipating fins extending from the heat-dissipating plate;

a first heat-conducting device mounted to the heat-dissipating plate device and having a flat area;

a diode light-emitting apparatus disposed on the flat area of the first heat-conducting device;

a shield device engaged with a circumference of the heat-dissipating plate device via an isolating ring to form a sealed space accommodating the diode light-emitting apparatus and the first heat-conducting device; and

a control circuit electrically connected to the diode light-emitting apparatus for controlling the diode light-emitting apparatus to emit the light;

wherein the shield device has a transparent shield enabling the light emitted by the diode light-emitting apparatus to pass through, and the shield device has a waterproof passage for a power cord passing through.

2. The light-emitting diode illuminating equipment of claim 1, wherein the first heat-conducting device comprises a heat pipe.

3. The light-emitting diode illuminating equipment of claim 1, wherein the diode light-emitting apparatus comprises at least one light-emitting diode chip.

4. The light-emitting diode illuminating equipment of claim 1, wherein the control circuit is disposed in the sealed space.

5. The light-emitting diode illuminating equipment of claim 4, wherein the power cord electrically connecting the control circuit through the waterproof passage.

6. An light-emitting diode illuminating equipment, comprising:

a heat-dissipating device having a concave and a plurality of heat-dissipating fins extending therefrom;

a heat-conducting device mounted on the concave and having a flat end portion;

a diode light-emitting apparatus disposed on the flat portion of the heat-conducting device;

a shield device engaged with a circumference of the heat-dissipating device via an isolating ring to form a accommodating space to accommodate the diode light-emitting apparatus and the heat-conducting device; and

a control circuit electrically connected to the diode light-emitting apparatus for controlling the diode light-emitting apparatus to emit the light;

wherein the shield device comprises a transparent shield enabling the light emitted by the diode light-emitting apparatus to pass through, and the accommodating space comprises a waterproof passage for a power cord passing through.

7. The light-emitting diode illuminating equipment of claim 6, wherein the heat-conducting device comprises a heat pipe.

8. The light-emitting diode illuminating equipment of claim 6, wherein the control circuit is disposed in the accommodating space and electrically connecting to the power cord through the waterproof passage.