AT521281A3 - DMD light module with a Peltier element - Google Patents

DMD light module with a Peltier element Download PDF

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Publication number
AT521281A3
AT521281A3 ATA50457/2019A AT504572019A AT521281A3 AT 521281 A3 AT521281 A3 AT 521281A3 AT 504572019 A AT504572019 A AT 504572019A AT 521281 A3 AT521281 A3 AT 521281A3
Authority
AT
Austria
Prior art keywords
peltier element
light module
cooling
thermally connected
dmd chip
Prior art date
Application number
ATA50457/2019A
Other languages
German (de)
Other versions
AT521281B1 (en
AT521281A2 (en
Original Assignee
Automotive Lighting Reutlingen Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automotive Lighting Reutlingen Gmbh filed Critical Automotive Lighting Reutlingen Gmbh
Publication of AT521281A2 publication Critical patent/AT521281A2/en
Publication of AT521281A3 publication Critical patent/AT521281A3/en
Application granted granted Critical
Publication of AT521281B1 publication Critical patent/AT521281B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors

Abstract

Vorgestellt wird ein Lichtmodul 16 für einen Kraftfahrzeugscheinwerfer 10, mit einem DMD-Chip 22, der eine Mikrospiegel 222 tragende Vorderseite 224 und eine Rückseite 226 aufweist. Das Lichtmodul 16 zeichnet sich dadurch aus, dass es eine Kühlelementbaugruppe 30 aufweist, die eine Peltierelementbaugruppe 312 und einen Kühlkörper 304 aufweist. Die Peltierelementbaugruppe 312 weist ein Peltierelement 314 und einen mit diesem thermisch verbundenen Kühlstempel 302 auf, der sich an der Rückseite 226 des DMD-Chips 22 abstützt. Im Betrieb weist das Peltierelement 314 ein heißes Ende 318 und ein kaltes Ende 316 auf und pumpt Wärme von seinem kalten Ende 316 zu seinem heißen Ende 318. Das kalte Ende 316 ist thermisch mit einem dem DMD-Chip 22 abgewandten Ende des Kühlstempels 302 verbunden, und das heiße Ende 318 ist thermisch mit dem Kühlkörper 304 verbunden.A light module 16 for a motor vehicle headlight 10 is presented, with a DMD chip 22 which has a front side 224 and a rear side 226, which carries micromirrors 222. The light module 16 is distinguished by the fact that it has a cooling element assembly 30, which has a Peltier element assembly 312 and a cooling body 304. The Peltier element assembly 312 has a Peltier element 314 and a cooling stamp 302 thermally connected to the latter, which is supported on the rear side 226 of the DMD chip 22. In operation, the Peltier element 314 has a hot end 318 and a cold end 316 and pumps heat from its cold end 316 to its hot end 318. The cold end 316 is thermally connected to an end of the cooling die 302 facing away from the DMD chip 22, and the hot end 318 is thermally connected to the heat sink 304.

ATA50457/2019A 2018-05-23 2019-05-20 DMD light module with a Peltier element AT521281B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018112387.6A DE102018112387A1 (en) 2018-05-23 2018-05-23 DMD light module with a Peltier element

Publications (3)

Publication Number Publication Date
AT521281A2 AT521281A2 (en) 2019-12-15
AT521281A3 true AT521281A3 (en) 2020-07-15
AT521281B1 AT521281B1 (en) 2022-07-15

Family

ID=68499226

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA50457/2019A AT521281B1 (en) 2018-05-23 2019-05-20 DMD light module with a Peltier element

Country Status (2)

Country Link
AT (1) AT521281B1 (en)
DE (1) DE102018112387A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021104857A1 (en) 2021-03-01 2022-09-01 HELLA GmbH & Co. KGaA Light module for a lighting device of a motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090086171A1 (en) * 2007-09-28 2009-04-02 Hon Hai Precision Industry Co., Ltd. Projector having digital micromirror device with thermoelectric cooling chip attached thereto
EP3064985A1 (en) * 2015-03-06 2016-09-07 Ricoh Company, Ltd. Temperature control device, image display apparatus and vehicle
WO2017143372A1 (en) * 2016-02-24 2017-08-31 Zkw Group Gmbh Retaining device for an electronic component
AT519118A4 (en) * 2016-11-24 2018-04-15 Zkw Group Gmbh Headlight module for vehicles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6386437B2 (en) * 2015-12-08 2018-09-05 トヨタ自動車株式会社 Vehicle headlamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090086171A1 (en) * 2007-09-28 2009-04-02 Hon Hai Precision Industry Co., Ltd. Projector having digital micromirror device with thermoelectric cooling chip attached thereto
EP3064985A1 (en) * 2015-03-06 2016-09-07 Ricoh Company, Ltd. Temperature control device, image display apparatus and vehicle
WO2017143372A1 (en) * 2016-02-24 2017-08-31 Zkw Group Gmbh Retaining device for an electronic component
AT519118A4 (en) * 2016-11-24 2018-04-15 Zkw Group Gmbh Headlight module for vehicles

Also Published As

Publication number Publication date
AT521281B1 (en) 2022-07-15
DE102018112387A1 (en) 2019-11-28
AT521281A2 (en) 2019-12-15

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