Lighting device for vehicles provided with cooled lighting modules

A technology for lighting devices and lighting modules, applied in lighting devices, cooling/heating devices of lighting devices, signaling devices, etc., can solve the problems of low thermal efficiency of cooling systems, difficulty in assembling, insufficient to provide correct defrosting, etc.

Active Publication Date: 2019-01-18
AUTOMOTIVE LIGHTING ITALA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The lighting device disclosed in EP2148133 is far from satisfactory: firstly, the device is bulky and difficult to assemble; secondly, the thermal efficiency of the cooling system including the radiator and the fan is very low, so that the light source (usually LED) from the lighting module takes away and the heat transferred to the front lens or shield is insufficient to provide proper defrosting in winter
Also, since the hot air is only directed to the middle part of the lens (in the vertical direction), the condensation on the lens / hood is not removed very well, so that the upper and lower parts of the lens / hood may remain wet

Method used

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  • Lighting device for vehicles provided with cooled lighting modules
  • Lighting device for vehicles provided with cooled lighting modules
  • Lighting device for vehicles provided with cooled lighting modules

Examples

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Embodiment Construction

[0014] refer to figure 1 and 4 , reference number 1 designates as a whole a lighting device for a vehicle, which in the non-limiting embodiment shown is a vehicle headlight / headlight, shown only schematically. However, what is described is intended to be applicable to any vehicle lighting arrangement.

[0015] The lighting device 1 comprises a generally cup-shaped housing 2 designed to be mounted on a vehicle, which is known and not shown for simplicity.

[0016] The housing 2 is made of synthetic plastic material by injection moulding, and has a front inlet 3 closed by a transparent cover 4, which in use faces away from the vehicle and in the direction of travel of the vehicle, which can be A "plain" lens (ie, no optical function - as in the preferred example shown) or an optical lens with optical function, eg, prismatic.

[0017] According to the invention, the housing 2 carries in its interior at least one lighting module 5, which in the image 3 and Figure 4 shown in...

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Abstract

Lighting device (1) for a vehicle including a cup-shaped housing body (2) and at least one cooled lighting module (5) arranged within the housing body facing a front inlet opening (3) thereof closed by a transparent cover or lens (4); wherein each cooled lighting module includes at least one light source (6), a radiator element (7) operatively associated to the at least one light source to removethe heat generated in use thereby and a diverter screen element (10) assembled directly onto the radiator element, rigid therewith and spaced apart therefrom, delimiting with the radiator element andwithin the housing body a non-linear channel (12) arranged at the rear of the light source and having a first open end (14) facing a fan (16) operatively associated with the radiator element (7) and asecond open end (15) facing the transparent cover or lens (4).

Description

[0001] priority statement [0002] This application claims priority from European Patent Application No. 17180838.9 filed on 11 July 2017, the disclosure of which is incorporated herein by reference. technical field [0003] The invention relates to a lighting device equipped with one or more lighting modules preferably using LEDs as light sources and having a cooling system which, in use, allows the external The lens or transparent cover defrosts and / or allows eventual condensation to be removed. Background technique [0004] Lighting devices for vehicles provided with one or more lighting modules are known, wherein the lighting modules are arranged in a housing having a front access closed by a lens or a transparent cover. In such devices, especially in winter and / or depending on weather conditions, it may happen that some condensation or ice forms on the lens / cover, which may hinder the optical performance of the lighting device. Furthermore, if condensation forms on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S45/43F21S45/48F21V29/67F21V29/76F21V29/87F21Y115/10F21W102/13
CPCF21V29/677F21V29/767F21V29/87F21S45/43F21S45/48F21W2102/13F21Y2115/10F21S41/143F21S45/47
Inventor 米夏埃尔·博尔塞尔焦·扎托尼罗贝托·切罗内克里斯蒂亚诺·瓦列里拉阿尔贝托·波尔齐奥
Owner AUTOMOTIVE LIGHTING ITALA
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