Schultz & Barajas, US Patent 7,771,089 Granted
Aug 10th, 2010 | By Leandro | Category: Featured Articles, PatentsUnited States Patent | 7,771,089 |
Schultz & Barajas | August 10, 2010 |
High intensity and low power signaling device with heat dissipation system.
Abstract
A luminous signaling device with a heat dissipation system is provided. The heat dissipation system is configured to set up a natural convection current flow to remove air heated by the LED emitter and enable cooler ambient air to flow towards the LED emitter. The signaling device includes a generally tubular element having a hollow inner cavity and a first slot through the tubular element. An LED emitter is operatively connected to the tubular element, with the LED emitter being operable to emit light in response to power. The signaling device includes an electronic driver circuit configured to provide an adjustable current to the LED emitter. Wires connecting the circuit and the LED emitter run through the first slot and the inner cavity of the tubular element.
Inventors: | Schultz; Rodney (Davisburg, MI), Barajas; Leandro G. (Troy, MI) |
Assignee: | GM Global Technology Operations, Inc. (Detroit, MI) |
Appl. No.: | 12/030,984 |
Filed: | February 14, 2008 |
A luminous signaling device with a heat dissipation system, comprising: a generally tubular element having a hollow inner cavity and a first slot through said tubular element; an LED emitter operatively connected to said tubular element, said LED emitter being operable to emit light in response to power; an electronic circuit configured to provide power to said LED emitter; at least one wire connecting said circuit and said LED emitter, said at least one wire passing through said first slot into said inner cavity of said tubular element; and wherein said heat dissipation system is configured to provide a natural convection current such that air heated by said LED emitter flows out through said inner cavity, leading cooler air to enter said inner cavity through said first slot.