Illumination apparatus with heat sink

A technology for lighting devices and cooling bodies, which is applied to lighting devices, components of lighting devices, cooling/heating devices of lighting devices, etc., can solve problems such as insufficient export, and achieve the effect of improving emission capability and reducing surface area.

Inactive Publication Date: 2011-08-17
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, a disadvantage in lighting devices according to the prior art and especially in LED lamps is that the heat generated during LED operation can only be dissipated insufficiently.
This heat must be dissipated by the cooling body to the environment, although different measures are taken to efficiently transfer the heat of the LEDs to the cooling body

Method used

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  • Illumination apparatus with heat sink
  • Illumination apparatus with heat sink
  • Illumination apparatus with heat sink

Examples

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Embodiment Construction

[0033] figure 1 An LED lamp 1 with a base 2 , a bulb 3 as a light-transmitting element 3 and a heat sink 4 is shown as an example of a lighting device 1 according to the invention. The light-emitting diodes are not shown here because they are arranged on the upper side A of the heat sink 4 inside the opaque bulb 3 . A wide range of suitable light-emitting diodes with different power levels and colors is known to those skilled in the art. Likewise, the electronic components required for powering the light-emitting diodes, which can be arranged in the base or in the region of the heat sink 4 , are not shown. The implementation and integration of these components into LED lamps is also known in principle to those skilled in the art.

[0034]The LED lamp 1 is designed as a retrofit solution for a conventional universal incandescent lamp with an E27 screw base, so that the base 2 is likewise embodied as an E27 screw base 2 and the whole formed by the bulb 3 and the heat sink 4 is...

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PUM

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Abstract

The invention relates to an illumination apparatus (1) having at least one light-emitting diode (LED) and at least one heat sink (4) for cooling the light-emitting diode. At least one of the components (3, 4) of the illumination apparatus (1), particularly the heat sink (4), has an emission coefficient of more than 0.75, preferably of more than 0.8, particularly preferably of more than 0.9 at least in sub-regions on at least one free surface.

Description

technical field [0001] The invention relates to a lighting device having at least one light-emitting diode (LED) and at least one heat sink for cooling the light-emitting diode. Background technique [0002] Lighting devices with light emitting diodes are increasingly used in general lighting due to their high efficiency and reduced manufacturing costs. In this case, the light-emitting diodes are mostly thermally operatively connected to the cooling body in order to be able to dissipate the heat formed during their operation. [0003] A special form of lighting means here are LED lamps, which are LED-based lighting means which are subject to space constraints and are therefore preferably embodied in one piece. LED lamps are often used to replace existing conventional lamps, such as incandescent or fluorescent lamps, without in this case having to make changes to the illuminants or lamp holders. In LED lamps, therefore, conventional lamp bases are usually provided for conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V29/00F21Y101/02
CPCF21V3/00F28F2245/06F28F13/18F21K9/00F21V29/2225F28F1/14F21K9/135F21Y2101/02F21V29/77F21K9/232F21Y2115/10
Inventor 妮科尔·布赖德纳塞尔马库斯·霍夫曼
Owner OSRAM GMBH
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