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Lighting arrangement with semiconductor light sources on flexible printed circuits

A lighting device, flexible printing technology, applied in the direction of folded flexible circuit boards, lighting devices, lighting device parts, etc., can solve the problems of inability to automate, difficult to automate, flexibility restrictions, etc., to achieve easy automation, save positioning Pieces, the effect of robust settings

Inactive Publication Date: 2008-12-24
AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reflector space of the lighting device is not continuous with the LED assembly, which makes the adjustment of the LED assembly and reflector more difficult
The mounting and equipping of the known lighting devices is thus very difficult and complex and practically impossible to automate
Flexibility is also limited since the LED is rigidly connected to the carrier from the start
[0006] Another disadvantage of known lighting devices is that it is difficult to power the setup and the conductive connection is not reliable
For example, in the first embodiment, for the central power supply, it is necessary to pass a plurality of feeders for fixing the LED assembly outwards to a (flexible) printed circuit board, which leads to a very complicated power supply
The mechanical or automated mounting of lighting devices becomes significantly more difficult when using flexible printed circuit boards due to the flexibility of printed circuit boards
In the second embodiment, in addition to the disadvantages detailed above, the reliability of the lighting device in operation is reduced in particular in that the mechanical connection between plug and socket is prone to contacting, for example due to corrosion. Failures and assembly are also difficult to automate

Method used

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  • Lighting arrangement with semiconductor light sources on flexible printed circuits
  • Lighting arrangement with semiconductor light sources on flexible printed circuits
  • Lighting arrangement with semiconductor light sources on flexible printed circuits

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Embodiment Construction

[0024] At present, headlights on automobiles mainly use halogenated or gas discharge lamps, while automotive lamps still mainly use filament lamps. More recently, however, light-emitting diodes (so-called Light Emitting Diodes, LEDs) have also been used, which are particularly advantageous due to their long service life, small external dimensions, impact resistance and low weight compared with other types of lamps.

[0025] The invention relates to a lighting device, which has at least one LED, at least one cooling body and at least one condenser lens group arranged on a flexible printed circuit board (also known as a flexboard) and electrically contacted thereon. . Such a lighting device is designed, for example, as a headlight or as any desired lamp. Figure 1 shows such a flexible printed circuit board 1, which is used according to a preferred embodiment of the invention. The printed circuit board 1 is designed in the form of a strip, ie the length of the printed circuit b...

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Abstract

The present invention relates to a lighting device (18) which is provided with at least one semiconductor light source (2) that is provided on a flexible printed circuit board (1) and is electrically switched on the flexible circuit board, at least one cooling body (15) and / or at least one beam condenser group (14). The invention is characterized in that the flexible printed circuit board is used for equipping at least one semiconductor light source (1), at least one cooler (15) and / or at least one beam condenser group (14) and / or is fixed on the carriers (9, 10) for being installed in the illuminating device (18) and is arranged in the illuminating device (18) with the preset position and direction to the carrier.

Description

technical field [0001] The invention relates to a lighting device for a motor vehicle, in particular a motor vehicle. The lighting device has at least one semiconductor light source which is arranged on a flexible printed circuit board and connected thereon in electrical contact. At least one semiconductor light source is associated with at least one heat sink and / or at least one condenser lens group. Furthermore, the invention relates to a method for equipping a flexible printed circuit board with at least one semiconductor light source, at least one heat sink and / or at least one condenser lens assembly within the scope of the production of a lighting device for a motor vehicle. Background technique [0002] Semiconductor light sources (so-called light-emitting diodes, LEDs) are increasingly used in lighting devices for motor vehicles, in particular headlights and flashing lights. When used in motor vehicle headlights, where relatively high optical power is required, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V17/00F21V29/00F21V5/04H01L33/00H05K1/03H05K1/18F21Y101/02
CPCF21S4/20F21S43/14F21S43/195F21Y2107/80F21Y2115/10H05K1/189H05K2201/046H05K2201/10106H05K2201/2018H05K2203/302
Inventor 库尔特·舒斯特斯特凡妮·斯特罗尔-舍费尔
Owner AUTOMOTIVE LIGHTING REUTLINGEN GMBH
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