Cooling device for a headlight of a motor vehicle, in particular for a laser headlight

A technology for cooling devices and motor vehicles, applied in cooling/heating devices of lighting devices, lighting devices, fixed lighting devices, etc., can solve the problems of expensive cooling and electricity demand, and achieve the effect of simplifying assembly and disassembly

Inactive Publication Date: 2016-03-30
ZKW GRP GMBH
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes cooling very expensive a

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cooling device for a headlight of a motor vehicle, in particular for a laser headlight
  • Cooling device for a headlight of a motor vehicle, in particular for a laser headlight
  • Cooling device for a headlight of a motor vehicle, in particular for a laser headlight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The following exemplary embodiments of the invention are described below with reference to the cooling of headlights of motor vehicles, wherein the lights for generating a light distribution on a roadway contain a laser module with one or more laser diodes as required. Contrary to conventional LED lighting, cooling requirements are thus increased since laser diodes are limited to operate at ambient temperatures only up to about 70°C, whereas LEDs have an operating range up to about 100°C. In order to ensure adequate cooling of the laser diode, an embodiment of a cooling device will now be described which generates an external air flow in a simple manner without the use of a fan. The corresponding cooling body, which is thermally connected to the laser light source, can be sufficiently cooled by this air flow.

[0029] figure 1 A side view of the front light 1 is shown schematically. In said headlight, a schematically drawn laser diode 2 is provided as a light source, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a cooling device for a headlight (1) of a motor vehicle, especially for a laser headlight. The cooling device comprises a cooling body (3) for thermally contacting a light source (2) of the headlight (1) and one or more passive air guides. Each air guide comprises an inlet line (4) and an outlet line (5) to supply outside air from outside the headlight (1) to the cooling body (3) via the inlet line (4) during travel of the motor vehicle (6) and to discharge the supplied outside air via the outlet line (5). The outside air enters the inlet line (4) via an inlet opening (8) arranged at a distance to the cooling body (3) and exits the outlet line (5) via an outlet opening (9) arranged at a distance to the cooling body (3). The cooling device is designed for arrangement in the motor vehicle (6) such that during travel of the motor vehicle (6) the air pressure at the inlet opening (8) is greater than the air pressure at the outlet opening (9).

Description

technical field [0001] The invention relates to a cooling device for a light of a motor vehicle, in particular for a laser light. Background technique [0002] Due to advances in lighting technology for motor vehicle lighting, the need for proper cooling of installed light sources is becoming more acute. In particular, when using a laser lamp, it is problematic that the laser diode contained in the laser light source has an operating temperature of typically only 70° C., which is significantly lower than that of the LED light source, which operates at 100° C. work in the range of ℃. Therefore, when cooling the laser illuminator, an active cooling system such as a Peltier element or a cooling fan is required. This makes cooling very expensive and additionally requires electricity. Contents of the invention [0003] It is therefore an object of the present invention to provide a cooling device for motor vehicle lighting which ensures simple and effective passive cooling. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F21S8/10F21V29/67F21V29/74F21W101/02F21W107/10
CPCF21S41/16F21S45/30F21S45/48F21S41/28
Inventor 布克哈德·李卫里希艾德里安·诺雷克亚历山大·波赫马提亚·福克斯
Owner ZKW GRP GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap