Lighting arrangement with semiconductor light sources on flexible printed circuits

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 ...

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

Images