Heat Dissipating LED Signal Lamp Source Structure

• US 20080037255A1
• Filed: 08/09/2006
• Published: 02/14/2008
• Est. Priority Date: 08/09/2006
• Status: Active Grant

• Current Assignee: Pyroswift Holding Co., Limited
• Original Assignee: Pyroswift Holding Co., Limited
• Inventors: Wang, Pei-Choa
• Granted Patent: US 7,396,146 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21K 9/233 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
• CPC Class Codes: F21V 23/002 Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
• CPC Class Codes: F21V 29/505 of reflectors
• 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 5/04 of lens shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A heat dissipating LED signal lamp emitting structure includes an isothermal board, a light emitting unit on the isothermal board, a heat conducting cylinder connected to the bottom of the isothermal board, a heat dissipating body around the periphery of the heat conducting cylinder and comprised of heat sinks, a circular cover body above the isothermal board for covering the isothermal board, a reflecting groove at the center of the cover body for passing through the light emitting unit, and a transparent lid on the cover body for covering the light emitting unit. With the heat dissipating effect of the heat dissipating body, the operating heat produced by the light emitting unit can be dissipated to the outside. The invention not only uses a single light emitting unit as a signal lamp emitting source, but also enhances the light emitting efficiency and the life expectancy of the light emitting unit.

Claims

1. A heat dissipating LED signal lamp emitting structure, comprising:

an isothermal board, made of a highly thermal conducting material;

a light emitting unit, disposed on the isothermal board;

a heat conducting cylinder, being a hollow body disposed under the isothermal board to be coupled with the isothermal board, having an electrode plug disposed on a lower distal surface thereof and electrically coupled to the light emitting unit;

a heat dissipating body, disposed around a periphery of the heat conducting cylinder and coupled to the heat conducting cylinder;

a cover body, coupled to the isothermal board, and having a reflecting groove disposed at middle of the cover body for containing the light emitting unit; and

a lid, disposed on the cover body, for covering the light emitting unit inside the lid.

2. The heat dissipating LED signal lamp emitting structure of claim 1, wherein the isothermal board further includes a through hole.

3. The heat dissipating LED signal lamp emitting structure of claim 1, wherein the light emitting unit is a light emitting diode.

4. The heat dissipating LED signal lamp emitting structure of claim 1, wherein the heat conducting cylinder has a circular protruding board disposed at an end of the heat conducting cylinder and coupled to the heat dissipating body.

5. The heat dissipating LED signal lamp emitting structure of claim 1, wherein the heat dissipating body includes a plurality of heat sinks.

6. The heat dissipating LED signal lamp emitting structure of claim 5, wherein the heat dissipating body further includes a gap between any two heat sinks.

7. The heat dissipating LED signal lamp emitting structure of claim 1, wherein the heat dissipating body forms a sunken space at top thereof, for containing the isothermal board, and the heat dissipating body is coupled to a periphery of the isothermal board.

8. The heat dissipating LED signal lamp emitting structure of claim 1, further comprising an electrode plug for the light emitting unit electrically coupled thereto by a conducting wire.

9. The heat dissipating LED signal lamp emitting structure of claim 1, wherein the reflecting groove further has a reflecting surface disposed at a periphery of the reflecting groove.