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Lighting assembly with air cooling

A technology of lighting components and lighting devices, which is applied in the field of lighting and can solve the problems of adding volume, weight and cost to lighting components

Inactive Publication Date: 2011-06-29
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Converters add significant bulk, weight and cost to lighting assemblies

Method used

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  • Lighting assembly with air cooling
  • Lighting assembly with air cooling
  • Lighting assembly with air cooling

Examples

Experimental program
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Embodiment Construction

[0020] figure 1 A lighting assembly is shown comprising a lighting device embodied as an LED 2 , such as a power LED, which generates a large amount of heat loss that needs to be removed by forced cooling. Housing 4 contains a rotary motor 6 that drives a rotatable fan 10 with a rotary shaft 11 and a rotary generator 8 . The motor 6 and the generator 8 are mechanically coupled, and in operation, the motor 6 drives the generator 8 as well as the fan 10 . Such as image 3 As will be specifically shown in the figure, the part of the electromagnetic circuit of the motor 6 is part of the electromagnetic circuit of the generator 8 . The LED 2 is electrically coupled to the generator 8 via the line 12 so that the LED 2 is supplied with electrical power generated by the generator 8 via the line 12, the LED 2 thereby providing light of a predetermined color and intensity. The generator 8 generates low voltage AC or DC power suitable for the LED 2 , for example 2-4V. Motor 6 is powe...

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PUM

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Abstract

A lighting device (2) generating excess heat has a cooling area cooled by a fluid flow generated by a fan device (10). A fan motor (6) driving the fan device has an electromagnetic motor circuit. Part of the electromagnetic motor circuit forms part of an electromagnetic generator circuit. The electromagnetic generator circuit supplies the lighting device. The combination of the electromagnetic motor and generator circuits provides a compact and low-cost construction which can be connected to a mains voltage without electric conversion. The lighting device may be an LED device.

Description

technical field [0001] The present invention relates to the field of lighting and in particular to a lighting assembly having a lighting device that generates excess heat to be removed by forced fluid flow. Background technique [0002] Today, LED (Light Emitting Diode) devices are increasingly used in lighting applications due to their high efficiency in converting electrical power input into light output, their small size, their variety of available light colors, and for other reasons. Individual LEDs are low voltage devices that can operate at voltages such as 2...4V. Voltage conversion is therefore necessary when supplying power to the LEDs from a mains voltage such as 220V AC or 110V AC. Such conversion requires a converter comprising different components such as one or more transformers, semiconductor switches, inductors and the like. Converters add significant bulk, weight and cost to lighting assemblies. [0003] German Utility Model Publication No. DE 20 2005 019...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S9/04F21V29/02F21K99/00
CPCF21V29/02F21S9/043F21Y2101/02F21Y2115/10F21V29/67F21V29/71
Inventor J·W·威坎普M·J·范伯梅尔
Owner KONINK PHILIPS ELECTRONICS NV