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Led-based fixtures and related methods for thermal management

A technology of LED light source and LED module, applied in the related fields of LED-based lamps and thermal management, can solve the problems of high maintenance, hinder application, etc., and achieve the effect of modern appearance

Active Publication Date: 2010-03-17
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of active cooling via fans and other mechanical air movement systems has often hindered its use in the general lighting industry primarily due to its inherent noise, expense and high maintenance requirements

Method used

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  • Led-based fixtures and related methods for thermal management
  • Led-based fixtures and related methods for thermal management
  • Led-based fixtures and related methods for thermal management

Examples

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Embodiment Construction

[0046] Various embodiments of the present invention and related inventive concepts are described below, including certain embodiments that relate inter alia to LED-based light sources. It should be noted, however, that the present invention is not limited to any particular implementation, and that the various examples explicitly discussed herein are primarily for illustrative purposes. For example, the various concepts disclosed herein may be suitably implemented in luminaires having various structural factors, such as track head luminaires and pendant luminaires, and including LED-based light sources.

[0047] figure 1 One example of a lighting unit 100 suitable for use with any of the luminaires described herein is illustrated. Combine with below figure 1 Some general examples of LED-based lighting units similar to those illustrated are available in, for example, U.S. Patent No. 6,016,038, issued January 18, 2000, to Mueller et al., entitled "Multicolored LED Lighting Me...

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PUM

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Abstract

LED-based lighting fixtures suitable for general illumination in surface-mount or suspended installations, in which heat dissipation properties of the fixtures are significantly improved by decreasing thermal resistance between LED junctions and the ambient air. In various examples, improved heat dissipation is accomplished by increasing a surface area of one or more heat-dissipating elements proximate a trajectory of air flow through the fixture. In one aspect, various structural components of the fixtures are particularly configured to create and maintain a 'chimney effect' within the fixture, resulting in a high air-flow rate, natural convection cooling system capable of efficiently dissipating the waste heat from the fixture without active cooling.

Description

Background technique [0001] The advent of digital lighting technology (ie, lighting based on semiconductor light sources such as light-emitting diodes (LEDs)) provides a viable alternative to traditional fluorescent, HID, and incandescent lamps. Functional advantages and benefits of LEDs include high energy conversion and optical efficiency, robustness, low operating cost, and many other advantages. For example, LEDs are particularly well-suited for applications requiring low-profile or low-profile luminaires. The small size, long operating life, low power consumption and durability of LEDs make them a good choice when space is at a premium. [0002] A "downlight" is a light fixture that is installed in a hollow opening in the ceiling and is commonly referred to as a "recessed light" or "downlight". When installed, it appears to spot light down from the ceiling as a wide floodlight or as a narrow spotlight. Typically, recessed lights have two parts, the bezel and the housin...

Claims

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Application Information

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IPC IPC(8): F21S8/02F21K7/00F21V21/04F21Y101/02F21V29/00F21K99/00
CPCF21S8/04F21V29/2293F21V29/02F21V29/225F21S48/325F21V29/2275H05B33/0815F21S8/06F21S8/033F21S8/038H05B33/0803F21V29/2231H05B33/0845F21V21/34F21S48/328F21V29/004F21Y2101/02F21V29/677F21V29/74F21V29/763F21V29/773F21V29/80F21V29/83F21Y2115/10H05B45/00H05B45/10F21S8/026F21V29/67F21V29/60H05B45/375H05B45/3725H05B45/38H05B45/325H05B45/385H05B45/355
Inventor B·罗伯格R·罗伯茨I·希克I·A·利斯B·科尔纳T·莫尔诺
Owner SIGNIFY HLDG BV
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