EP3542098A1 - Heat sink having variable thermal resistance - Google Patents

Heat sink having variable thermal resistance

Info

Publication number
EP3542098A1
EP3542098A1 EP17794213.3A EP17794213A EP3542098A1 EP 3542098 A1 EP3542098 A1 EP 3542098A1 EP 17794213 A EP17794213 A EP 17794213A EP 3542098 A1 EP3542098 A1 EP 3542098A1
Authority
EP
European Patent Office
Prior art keywords
heat sink
motor vehicle
vehicle headlight
contact
elements
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP17794213.3A
Other languages
German (de)
French (fr)
Other versions
EP3542098B1 (en
Inventor
Peter Mayer
Michael Brunner
Martin Ebner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZKW Group GmbH
Original Assignee
ZKW Group 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 ZKW Group GmbH filed Critical ZKW Group GmbH
Publication of EP3542098A1 publication Critical patent/EP3542098A1/en
Application granted granted Critical
Publication of EP3542098B1 publication Critical patent/EP3542098B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F21S41/28—Cover glass
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F2013/005—Thermal joints
    • F28F2013/008—Variable conductance materials; Thermal switches

Definitions

  • the invention relates to a motor vehicle headlight with a headlight housing and a cover plate with at least one in this motor vehicle headlight
  • a heat sink device for cooling the at least one light source, a heat sink device is provided.
  • light sources are generally arranged inside the headlight housing, such as incandescent lamps, for example.
  • Automotive headlamps generate these conventional light sources and their components heat, which must be dissipated.
  • light emitting diodes should be kept below their maximum operating temperature for optimum performance and longevity.
  • the ambient temperature of the operating vehicle headlamp is lower than in the interior of the vehicle headlight itself, and so the most practical solution is to deliver the heat generated inside the vehicle headlamp to the ambient temperature.
  • the headlamp housing of a motor vehicle headlamp and a covering the front of the housing cover fluidly usually the interior of the motor vehicle headlight fluidly separated from the environment to impurities, such as dust or other debris, from entering the interior of the motor vehicle headlight
  • a separate cooling device which is mounted so that it cools the interior of the vehicle headlight and the light sources arranged therein, by giving off heat to the outside environment.
  • Automotive headlamps are usually attached to a portion of the vehicle frame adjacent to the engine compartment, which often has significantly higher temperatures than the outside ambient temperature. For example, during the Vehicle operation in the engine compartment heat given off by the internal combustion engine and various components. Likewise, the air in the engine compartment is heated by solar energy during use or non-use of the vehicle. Therefore, it would be obvious, the temperature in the interior of the motor vehicle headlight as described in the patent application DE 10 2006 057569 B4, on the cover of a built-in
  • Motor vehicle headlights may be partially transparent, not
  • heat sink devices are so to the vehicle headlight
  • the temperature may optionally be the same in the engine compartment, or higher than the temperature inside the vehicle headlight.
  • the interior of the vehicle headlamp can not be cooled by the heat-radiating device arranged toward the engine compartment, but would even heat it up.
  • the motor vehicle headlight with a cooling device which shields the interior of the motor vehicle headlight and the light sources arranged therein against the relatively high temperatures in the engine compartment.
  • the object of the invention is to provide for the above-mentioned limitations and other disadvantages of the prior art, a motor vehicle headlight, the one
  • Cooling device has, which cools the interior of the motor vehicle headlight and shields the light sources arranged therein against the relatively high temperatures in the engine compartment.
  • the heat sink device comprises two heat sink elements separated by an air gap, which are arranged such that a first heat sink element in the interior of the motor vehicle headlight and a second heat sink element outside the vehicle headlight is mounted, wherein the heat sink device is provided with a contacting device, which is designed such that heat exchange between the heat sink elements via this Contacting device takes place when the temperature in the interior of the motor vehicle headlight is higher than the temperature in the area outside the motor vehicle headlight, to which the second heat sink element is attached, and that no heat exchange between the heat sink elements is possible if the
  • Temperature in the interior of the motor vehicle headlight is lower than the temperature in the area outside the motor vehicle headlight, where the second
  • Heatsink element is attached.
  • Heat transfer contact with the at least one arranged in the headlight housing light source is placed.
  • the second heat sink element is directed in the installed state of the motor vehicle headlight in the direction of the engine compartment, preferably positioned in an engine compartment.
  • heat sink elements are arranged stationary relative to one another.
  • the contacting device at least one heat-conducting
  • Contain contact element which is movable with respect to the heat sink elements.
  • Contacting device comprises a contact element or a plurality of contact elements, which allows heat exchange between the heat sink elements, when the temperature in the interior of the motor vehicle headlight is higher than the temperature in the area outside the motor vehicle headlight, on which the second heat sink element is mounted, wherein the contact element or the contact elements of
  • Heat exchange between the heat sink elements is possible when the temperature in the interior of the motor vehicle headlight is lower than the temperature in the area outside the motor vehicle headlight, on which the second heat sink element is attached by the covered contact elements of the contacting while only in contact with a respective heat sink element or no heat sink element.
  • Touch temperature condition to transfer heat for example, can be made flat or plan, it may cause wear or other reasons that the contact surfaces of the contact elements no longer touch the entire surface. This is detrimental to optimal heat transfer and therefore, for example, a thermal grease or other means, which are suitable for improving the heat transfer between two objects, can be used for this purpose.
  • the contacting device comprises a first and a second contact element, which allow heat exchange between the heat sink elements, when the temperature in the interior of the motor vehicle headlight is higher than the temperature in the area outside the motor vehicle headlight, on which the second heat sink element is mounted wherein the first contact element is in simultaneous heat-conducting contact with the first heat sink element and at the same time on the second contact element with the second heat sink element, and that no heat exchange between the heat sink elements is possible when the temperature in the interior of the motor vehicle headlight is lower than the temperature in the Area outside of the motor vehicle headlight, on which the second heat sink element is mounted, in which the contact elements of the contacting device are only in contact with a respective heat sink element, but not with each other.
  • At least one contact element of the contacting device is displaceably mounted in at least one recess in a heat sink element.
  • the contact elements of the contacting device can be moved by at least one control element assigned to the respective contact element. Furthermore, it is advantageously provided that a first control element is associated with the first contact element and a second control element is associated with the second contact element.
  • the first control element may be configured such that when the temperature in the interior of the motor vehicle headlight rises, the first contact element is extended by the first control element, so that a heat-conducting contact with the second contact element can be produced.
  • the second control element is designed such that, as the temperature rises in the area outside the motor vehicle headlight on which the second heat sink element is mounted, the second contact element is retracted by the second control element, so that a heat-conducting contact with the first
  • controls are made of a material that expands or contracts depending on the temperature.
  • the controls are made of bimetal.
  • the position of the contact elements could be adjusted so that they touch straight at 70 ° C, for example, in the interior of the headlamp housing and at 70 ° C in the area outside the vehicle headlamp on which the second heat sink element is mounted and establish a thermally conductive contact. It would also be conceivable that the contact elements are positioned or calibrated so that they are at 71 ° C, for example, in the interior of the headlamp housing and at 70 ° C in the area outside the vehicle headlamp on which the second heat sink element is attached, just touch and make a thermally conductive contact. The first calibration or positioning would therefore be a thermally conductive contact between the
  • Headlight housing is just higher than the temperature in the area outside the vehicle headlight.
  • FIG. 1 shows a cross section of an exemplary motor vehicle headlight
  • FIG. 2 is a side view of a heat sink device according to the invention
  • Fig. 3 is a side view of the heat sink device of FIG. 2 in the state of
  • FIG. 4 is a side view of the heat sink device of FIG. 2 in the condition of no heat exchange
  • Automotive headlamps 100 are mounted with light sources 104, 105, each of which emit light onto an associated reflector disposed below each light source.
  • the first heat sink element 106 of the heat sink device 200 is placed in heat transfer contact with the light source 104 disposed in the vehicle headlamp 100, and a second heat sink element 107 is outside of
  • FIG. 1 Motor vehicle headlight 100 in the installed state of the motor vehicle headlight 100 directed towards the engine compartment.
  • FIG. 1 A detailed view of the heat sink device 200 and the components included is shown in FIG.
  • the heat sink device 200 comprises two heat sink elements 201, 202 separated from one another by an air gap 209, wherein both heat sink elements 201, 202 are positioned stationary relative to one another. Between the heat sink elements 201, 202, the contacting device 210 is arranged, which can establish a thermal contact between the two separate heat sink elements 201, 202.
  • Contacting device 210 includes the heat-conducting contact elements 203, 204, and the associated tempera ture-dependent controls 207, 208th
  • a first contact element 203 is in a recess 205 present in the first heat sink element 201, and a second contact element 204 is in one in the second
  • Heat sink element 202 existing recess 206 slidably mounted.
  • a first control element 207 is assigned to the first contact element 203, and a second control element 208 is assigned to the second contact element 204.
  • the contact elements 203, 204 can be moved into or out of the recesses 205, 206, at least in part, by the respective control elements 207, 208, which are made of bimetal in the example shown.
  • FIG. 3 shows the state of the heat sink device 200 from FIG. 2, in which the temperature in the interior of the motor vehicle headlight 100 is higher than the temperature in the region of the second heat sink element 202 directed into the engine compartment, the first contact element 203 being affected by the temperature-dependent, first Control element 207 has been moved out of the recess 205 of the first heat sink element 201 so as to
  • FIG. 4 shows the state of the heat sink device 200 of FIG. 2, in which the temperature in the interior of the motor vehicle headlight 100 is lower than that
  • FIG. 5 are each heat sink element 501, 502 two recesses 505, 506, 511, 512th
  • a first contact element 503 the first heat sink element 501 and a second contact element 504 are associated with the second heat sink element 502 and are arranged in the existing recesses 505, 506, 511, 512, that they in no way by an at least partial pushing out of the Recesses 505, 512 can come into contact, wherein each contact element 503, 504 can be moved at least in its respective opposite recess 506, 511 at least in part to produce a heat exchange with the unassigned heat sink member 501, 502.
  • Fig. 6 shows a similar arrangement as in Figure 5, wherein the first and second
  • Heat exchange with the first heat sink element 601 produce, which is provided without recesses and associated contact elements.
  • a similar example with only a single contact element 803, 904 is shown in Figs. 8 and 9, wherein in Fig. 8, in contrast to Fig. 9, an additional recess 805 in the first
  • Heat sink element 801 is provided.
  • Fig. 7 shows the difference of the embodiment shown in Fig. 2, an additional second recess 712 in the second heat sink element 702, wherein the second
  • Contact element 704 is horseshoe-shaped, so that it can be arranged in both recesses 706, 712 of the second heat sink element 702.
  • the first contact element 1003 is preferably movably arranged on the upper and lower sides of the first heat sink element 1001, respectively, the first one
  • Heatsink element 1001 has no recesses, and the second contact element 1004 is arranged in the recess 1006 of the second heat sink element 1002 and is shaped such that it can produce heat exchange with the preferably movable first contact element 1003 during the at least partial pushing out of the recess 1006.
  • FIGS. 5, 6, 7, 8, 9 and 10 a drawing of the respective control elements 207, 208 has been omitted, wherein the contact elements of these embodiments are very well moved with control elements 207, 208 described above can.
  • Temperature sensors may be provided, in which case a temperature sensor in the interior of the motor vehicle headlight 100 and another temperature sensor in the area outside the motor vehicle headlight 100, on which the second heat sink element 502, 602, 802, 902 is arranged attached.
  • a controller compares those of the
  • Temperature sensors each detected temperatures, comparing them and moves the respective contact element 503, 504, 603, 604, 803, 904 via the contact element 503, 504, 603, 604, 803, 904 associated, not shown in these figures control element 207, 208 with Help a drive, such as a linear motor or bellows and
  • Thermal contact can be made or prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention relates to a motor vehicle headlight (100), comprising a headlight housing (102) and a cover plate (103) having at least one light source (104, 105) arranged in said motor vehicle headlight (100). In order to cool the at least one light source (104, 105), a heat sink device (200) is provided. Said heat sink device (200) comprises two heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) that are separated from one another by an air gap (209) and that are arranged in such a way that a first heat sink element (106, 201, 501, 601, 701, 801, 901, 1001) is mounted inside the motor vehicle headlight (100), and a second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) is mounted outside the motor vehicle headlight (100). The heat sink device (200) is provided with a contacting device (210) that allows a heat exchange between the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) via said contacting device (210), whenever the temperature inside the motor vehicle headlight (100) is higher than the temperature in the area outside the motor vehicle headlight (100), and no heat exchange between the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) is possible whenever the temperature inside the motor vehicle headlight (100) is lower than the temperature in the area outside the motor vehicle headlight (100).

Description

KÜHLKÖRPER MIT VARIABLEM THERMISCHEN WIDERSTAND  COOLING BODY WITH VARIABLE THERMAL RESISTANCE
Die Erfindung betrifft einen Kraftfahrzeugscheinwerfer mit einem Scheinwerfergehäuse und einer Abdeckscheibe mit zumindest einer in diesem Kraftfahrzeugscheinwerfer The invention relates to a motor vehicle headlight with a headlight housing and a cover plate with at least one in this motor vehicle headlight
angeordneten Lichtquelle, wobei das Licht der zumindest einen Lichtquelle in Form einer definierten Lichtverteilung vor dem Kraftfahrzeugscheinwerfer abgebildet werden kann, und wobei zur Kühlung der zumindest einen Lichtquelle eine Kühlkörpervorrichtung vorgesehen ist. arranged light source, wherein the light of the at least one light source can be imaged in the form of a defined light distribution in front of the motor vehicle headlight, and wherein for cooling the at least one light source, a heat sink device is provided.
Bei einem Kraftfahrzeugscheinwerfer sind im Allgemeinen Lichtquellen innerhalb des Scheinwerfergehäuses angeordnet, wie beispielsweise Glühlampen, In a motor vehicle headlamp, light sources are generally arranged inside the headlight housing, such as incandescent lamps, for example.
Hochintensitätsentladungslampen oder Leuchtdioden. Beim Betrieb des High intensity discharge lamps or light emitting diodes. When operating the
Kraftfahrzeugscheinwerfers erzeugen diese üblichen Lichtquellen und ihre Komponenten Wärme, die es abzuführen gilt. Besonders Leuchtdioden sollten unterhalb ihrer maximalen Betriebstemperatur gehalten werden, um eine optimale Leistung und Langlebigkeit zu gewährleisten. Automotive headlamps generate these conventional light sources and their components heat, which must be dissipated. In particular, light emitting diodes should be kept below their maximum operating temperature for optimum performance and longevity.
In der Regel ist die Umgebungstemperatur des in Betrieb stehenden Fahrzeugscheinwerfers niedriger als im Inneren des Kraftfahrzeugscheinwerfers selbst, und so ist die praktikabelste Lösung jene, die erzeugte Wärme im Inneren des Kraftfahrzeugscheinwerfers an die Umgebungstemperatur abzugeben. In general, the ambient temperature of the operating vehicle headlamp is lower than in the interior of the vehicle headlight itself, and so the most practical solution is to deliver the heat generated inside the vehicle headlamp to the ambient temperature.
Da das Scheinwerfergehäuse eines Kraftfahrzeugscheinwerfers und eine den vorderen Bereich des Gehäuses abdeckende Abdeckscheibe jedoch üblicherweise den Innenraum des Kraftfahrzeugscheinwerfers von der Umgebung fluidisch abtrennen, um Verunreinigungen, wie Staub oder andere Schmutzpartikel, am Eindringen in den Innenraum des However, since the headlamp housing of a motor vehicle headlamp and a covering the front of the housing cover fluidly usually the interior of the motor vehicle headlight fluidly separated from the environment to impurities, such as dust or other debris, from entering the interior of the
Kraftfahrzeugscheinwerfers zu hindern, ist eine eigene Kühlvorrichtung vorgesehen, die so angebracht ist, dass sie den Innenraum des Kraftfahrzeugscheinwerfers und die darin angeordneten Lichtquellen kühlt, indem sie Wärme an die äußere Umgebung abgibt. To prevent motor vehicle headlamps, a separate cooling device is provided, which is mounted so that it cools the interior of the vehicle headlight and the light sources arranged therein, by giving off heat to the outside environment.
Kraftfahrzeugscheinwerfer sind normalerweise an einem Abschnitt des Fahrzeugrahmens befestigt, der an den Motorraum angrenzt, der oftmals erheblich höhere Temperaturen aufweist als die äußere Umgebungstemperatur. Zum Beispiel wird während des Fahrzeugbetriebs im Motorraum Wärme durch den Verbrennungsmotor und verschiedenste Komponenten abgegeben. Ebenso wird die Luft im Motorraum bei Gebrauch als auch Nichtgebrauch des Fahrzeugs durch Sonnenenergie erwärmt. Naheliegend wäre es deshalb, die Temperatur im Inneren des Kraftfahrzeugscheinwerfers wie in der Patentanmeldung DE 10 2006 057569 B4 beschrieben, über die Abdeckscheibe eines eingebauten Automotive headlamps are usually attached to a portion of the vehicle frame adjacent to the engine compartment, which often has significantly higher temperatures than the outside ambient temperature. For example, during the Vehicle operation in the engine compartment heat given off by the internal combustion engine and various components. Likewise, the air in the engine compartment is heated by solar energy during use or non-use of the vehicle. Therefore, it would be obvious, the temperature in the interior of the motor vehicle headlight as described in the patent application DE 10 2006 057569 B4, on the cover of a built-in
Kraftfahrzeugscheinwerfers abzuführen. Davon wird jedoch aus optischen Gründen und um die Funktionalität der Abdeckscheibe, die in lichtemittierender Richtung des Car Headlamps dissipate. Of these, however, for optical reasons and the functionality of the cover, in the light-emitting direction of the
Kraftfahrzeugscheinwerfers zum Teil transparent ausgebildet sein kann, nicht Motor vehicle headlights may be partially transparent, not
einzuschränken abgesehen. Restrict aside.
Um nicht durch weitere bauliche Maßnahmen in die äußere Optik des Fahrzeugs In order not by further structural measures in the external appearance of the vehicle
einzugreifen, werden Kühlkörpervorrichtungen so an den Fahrzeugscheinwerfer intervene, heat sink devices are so to the vehicle headlight
angebracht, dass sie im eingebauten Zustand in Richtung Motorraum angeordnet sind. Wie bereits erwähnt, kann die Temperatur gegebenenfalls im Motorraum gleich hoch, bzw. höher sein als die Temperatur im Inneren des Kraftfahrzeugscheinwerfers. In diesem Fall kann das Innere des Kraftfahrzeugscheinwerfers durch die in Richtung Motorraum angeordnete Kühlkörpervorrichtung nicht gekühlt werden, sondern würde sie sogar noch aufheizen. attached, that they are arranged in the installed state in the direction of the engine compartment. As already mentioned, the temperature may optionally be the same in the engine compartment, or higher than the temperature inside the vehicle headlight. In this case, the interior of the vehicle headlamp can not be cooled by the heat-radiating device arranged toward the engine compartment, but would even heat it up.
Deshalb ist es von Vorteil, den Kraftfahrzeugscheinwerfer mit einer Kühlvorrichtung auszustatten, die das Innere des Kraftfahrzeugscheinwerfers und die darin angeordneten Lichtquellen gegen die relativ hohen Temperaturen im Motorraum abschirmt. Therefore, it is advantageous to provide the motor vehicle headlight with a cooling device which shields the interior of the motor vehicle headlight and the light sources arranged therein against the relatively high temperatures in the engine compartment.
Aufgabe der Erfindung ist es, zu oben erwähnten Einschränkungen und anderen Nachteilen des Standes der Technik einen Kraftfahrzeugscheinwerfer bereitzustellen, der eine The object of the invention is to provide for the above-mentioned limitations and other disadvantages of the prior art, a motor vehicle headlight, the one
Kühlkörpervorrichtung aufweist, die das Innere des Kraftfahrzeugscheinwerfers kühlt und die darin angeordneten Lichtquellen gegen die relativ hohen Temperaturen im Motorraum abschirmt. Cooling device has, which cools the interior of the motor vehicle headlight and shields the light sources arranged therein against the relatively high temperatures in the engine compartment.
Diese Aufgabe wird dadurch gelöst, dass die Kühlkörpervorrichtung zwei durch einen Luftspalt voneinander getrennte Kühlkörperelemente umfasst, welche derart angeordnet sind, dass ein erstes Kühlkörperelement im Innenraum des Kraftfahrzeugscheinwerfers und ein zweites Kühlkörperelement außerhalb des Kraftfahrzeugscheinwerfers angebracht ist, wobei die Kühlkörpervorrichtung mit einer Kontaktiervorrichtung versehen ist, die derart ausgebildet ist, dass Wärmeaustausch zwischen den Kühlkörperelementen über diese Kontaktiervorrichtung stattfindet, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers höher ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, und dass kein Wärmeaustausch zwischen den Kühlkörperelementen möglich ist, wenn die This object is achieved in that the heat sink device comprises two heat sink elements separated by an air gap, which are arranged such that a first heat sink element in the interior of the motor vehicle headlight and a second heat sink element outside the vehicle headlight is mounted, wherein the heat sink device is provided with a contacting device, which is designed such that heat exchange between the heat sink elements via this Contacting device takes place when the temperature in the interior of the motor vehicle headlight is higher than the temperature in the area outside the motor vehicle headlight, to which the second heat sink element is attached, and that no heat exchange between the heat sink elements is possible if the
Temperatur im Innenraum des Kraftfahrzeugscheinwerfers niedriger ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Temperature in the interior of the motor vehicle headlight is lower than the temperature in the area outside the motor vehicle headlight, where the second
Kühlkörperelement angebracht ist. Heatsink element is attached.
Eine vorteilhafte Weiterbildung der erfindungsgemäßen Vorrichtung sieht vor, dass die Kühlkörperelemente derart angeordnet sind, dass das erste Kühlkörperelement in An advantageous development of the device according to the invention provides that the heat sink elements are arranged such that the first heat sink element in
Wärmeübertragungskontakt mit der zumindest einen im Scheinwerfergehäuse angeordneten Lichtquelle platziert ist. Heat transfer contact with the at least one arranged in the headlight housing light source is placed.
Weiters kann es zweckmäßig sein, wenn das zweite Kühlkörperelement im eingebauten Zustand des Kraftfahrzeugscheinwerfers in Richtung Motorraum gerichtet ist, vorzugsweise in einem Motorraum positioniert ist. Furthermore, it may be expedient if the second heat sink element is directed in the installed state of the motor vehicle headlight in the direction of the engine compartment, preferably positioned in an engine compartment.
Vorteilhaft kann es sein, wenn die Kühlkörperelemente in Bezug zueinander feststehend angeordnet sind. It can be advantageous if the heat sink elements are arranged stationary relative to one another.
Vorteilhafterweise kann die Kontaktiervorrichtung zumindest ein wärmeleitendes Advantageously, the contacting device at least one heat-conducting
Kontaktelement umfassen, welches bezüglich der Kühlkörperelemente beweglich ist. Contain contact element, which is movable with respect to the heat sink elements.
Bei einer zweckmäßigen Ausgestaltung kann weiters vorgesehen sein, dass die In an expedient embodiment may further be provided that the
Kontaktiervorrichtung ein Kontaktelement oder mehrere Kontaktelemente umfasst, welches Wärmeaustausch zwischen den Kühlkörperelementen ermöglicht, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers höher ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, wobei das Kontaktelement oder die Kontaktelemente der Contacting device comprises a contact element or a plurality of contact elements, which allows heat exchange between the heat sink elements, when the temperature in the interior of the motor vehicle headlight is higher than the temperature in the area outside the motor vehicle headlight, on which the second heat sink element is mounted, wherein the contact element or the contact elements of
Kontaktiervorrichtung dabei in gleichzeitigem wärmeleitenden Kontakt mit dem ersten Kühlkörperelement und dem zweiten Kühlkörperelement sind, und dass kein Contacting device while in simultaneous thermally conductive contact with the first heat sink element and the second heat sink element, and that no
Wärmeaustausch zwischen den Kühlkörperelementen möglich ist, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers niedriger ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, indem die umfassten Kontaktelemente der Kontaktiervorrichtung dabei nur in Kontakt mit jeweils einem Kühlkörperelement oder keinem Kühlkörperelement stehen. Heat exchange between the heat sink elements is possible when the temperature in the interior of the motor vehicle headlight is lower than the temperature in the area outside the motor vehicle headlight, on which the second heat sink element is attached by the covered contact elements of the contacting while only in contact with a respective heat sink element or no heat sink element.
Da die Kontaktflächen der Kontaktelemente, die sich bei oben beschriebener Since the contact surfaces of the contact elements, which are described above
Temperaturbedingung berühren, um Wärme zu übertragen, beispielsweise eben bzw. plan ausgeführt sein können, kann es durch Abnutzung oder anderen Gründen dazu führen, dass sich die Kontaktflächen der Kontaktelemente nicht mehr vollflächig berühren. Dies ist einer optimalen Wärmeübertragung abträglich und deshalb kann hierfür beispielsweise eine Wärmeleitpaste oder sonstige Mittel, die dazu geeignet sind die Wärmeübertragung zwischen zwei Objekten zu verbessern, eingesetzt werden. Touch temperature condition to transfer heat, for example, can be made flat or plan, it may cause wear or other reasons that the contact surfaces of the contact elements no longer touch the entire surface. This is detrimental to optimal heat transfer and therefore, for example, a thermal grease or other means, which are suitable for improving the heat transfer between two objects, can be used for this purpose.
Weiters kann es vorteilhaft sein, wenn die Kontaktiervorrichtung ein erstes und ein zweites Kontaktelement umfasst, welche Wärmeaustausch zwischen den Kühlkörperelementen ermöglichen, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers höher ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, wobei das erste Kontaktelement dabei in gleichzeitigem wärmeleitenden Kontakt mit dem ersten Kühlkörperelement und zugleich über das zweite Kontaktelement mit dem zweiten Kühlkörperelement ist, und dass kein Wärmeaustausch zwischen den Kühlkörperelementen möglich ist, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers niedriger ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, indem die Kontaktelemente der Kontaktiervorrichtung dabei nur in Kontakt mit jeweils einem Kühlkörperelement stehen, aber nicht miteinander. Furthermore, it may be advantageous if the contacting device comprises a first and a second contact element, which allow heat exchange between the heat sink elements, when the temperature in the interior of the motor vehicle headlight is higher than the temperature in the area outside the motor vehicle headlight, on which the second heat sink element is mounted wherein the first contact element is in simultaneous heat-conducting contact with the first heat sink element and at the same time on the second contact element with the second heat sink element, and that no heat exchange between the heat sink elements is possible when the temperature in the interior of the motor vehicle headlight is lower than the temperature in the Area outside of the motor vehicle headlight, on which the second heat sink element is mounted, in which the contact elements of the contacting device are only in contact with a respective heat sink element, but not with each other.
Es kann vorgesehen sein, dass zumindest ein Kontaktelement der Kontaktiervorrichtung in zumindest einer Ausnehmung in einem Kühlkörperelement verschiebbar gelagert ist. It can be provided that at least one contact element of the contacting device is displaceably mounted in at least one recess in a heat sink element.
Es ist zweckmäßig, wenn genau zwei Kontaktelemente der Kontaktiervorrichtung in jeweils einer Ausnehmung in den Kühlkörperelementen verschiebbar gelagert sind. It is expedient if exactly two contact elements of the contacting device are displaceably mounted in each case in a recess in the heat sink elements.
Mit Vorteil ist vorgesehen, wenn die Kontaktelemente der Kontaktiervorrichtung durch zumindest ein dem jeweiligen Kontaktelement zugeordnetes Steuerelement bewegt werden können. Weiter ist mit Vorteil vorgesehen, wenn dem ersten Kontaktelement ein erstes Steuerelement zugeordnet ist und dem zweiten Kontaktelement ein zweites Steuerelement zugeordnet ist. It is advantageously provided that the contact elements of the contacting device can be moved by at least one control element assigned to the respective contact element. Furthermore, it is advantageously provided that a first control element is associated with the first contact element and a second control element is associated with the second contact element.
Beispielsweise kann das erste Steuerelement derart ausgebildet sein , dass bei steigender Temperatur im Innenraum des Kraftfahrzeugscheinwerfers das erste Kontaktelement durch das erste Steuerelement ausgefahren wird, sodass ein wärmeleitender Kontakt mit dem zweiten Kontaktelement hergestellt werden kann. For example, the first control element may be configured such that when the temperature in the interior of the motor vehicle headlight rises, the first contact element is extended by the first control element, so that a heat-conducting contact with the second contact element can be produced.
Weiters ist es günstig, wenn das zweite Steuerelement derart ausgebildet ist, dass bei steigender Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, das zweite Kontaktelement durch das zweite Steuerelement eingefahren wird, sodass ein wärmeleitender Kontakt mit dem ersten Furthermore, it is favorable if the second control element is designed such that, as the temperature rises in the area outside the motor vehicle headlight on which the second heat sink element is mounted, the second contact element is retracted by the second control element, so that a heat-conducting contact with the first
Kontaktelement unterbunden werden kann. Contact element can be prevented.
Es ist zweckmäßig, wenn die Steuerelemente aus einem Material beschaffen sind, welches sich temperaturabhängig ausdehnt bzw. zusammenzieht. It is useful if the controls are made of a material that expands or contracts depending on the temperature.
Bei einer Ausführungsform ist vorgesehen, dass die Steuerelemente aus Bimetall gefertigt sind. In one embodiment, it is provided that the controls are made of bimetal.
Bei Verwendung von Bimetallen als Steuerungselemente könnte beispielsweise für alle Steuerungselemente das gleiche Bimetall verwendet werden. Hierbei ist zu beachten, dass bei Erwärmung oder Abkühlung um ein bestimmtes ΔΤ die Kontaktelemente bei When using bimetals as control elements, for example, the same bimetal could be used for all control elements. It should be noted that when heated or cooled by a certain ΔΤ the contact elements at
spiegelverkehrter Positionierung der Steuerungselemente - also der Bimetalle - im Betrag die gleiche Wegstrecke zurücklegen. Für ein allgemeines Funktionieren der Erfindung ist es ratsam eine„Eichposition" bei bestimmter Temperatur festzulegen, bei der die mirrored positioning of the control elements - so the bimetals - cover the same distance in the amount. For a general functioning of the invention, it is advisable to set a "calibration position" at a certain temperature at which the
Kontaktflächen der Kontaktelemente sich bei gleicher Temperatur berühren. Contact surfaces of the contact elements touch each other at the same temperature.
Hierzu könnte die Position der Kontaktelemente so eingestellt sein, dass diese sich bei beispielsweise 70°C im Innenraum des Scheinwerfergehäuses und bei 70°C im Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, gerade berühren und einen wärmeleitenden Kontakt herstellen. Ebenso wäre denkbar, dass die Kontaktelemente so positioniert bzw. geeicht werden, dass diese sich bei beispielsweise 71°C im Innenraum des Scheinwerfergehäuses und bei 70°C im Bereich außerhalb des Kraftfahrzeugscheinwerfers, an dem das zweite Kühlkörperelement angebracht ist, gerade berühren und einen wärmeleitenden Kontakt herstellen. Die erste Eichung bzw. Positionierung wäre also ein wärmeleitender Kontakt zwischen den For this purpose, the position of the contact elements could be adjusted so that they touch straight at 70 ° C, for example, in the interior of the headlamp housing and at 70 ° C in the area outside the vehicle headlamp on which the second heat sink element is mounted and establish a thermally conductive contact. It would also be conceivable that the contact elements are positioned or calibrated so that they are at 71 ° C, for example, in the interior of the headlamp housing and at 70 ° C in the area outside the vehicle headlamp on which the second heat sink element is attached, just touch and make a thermally conductive contact. The first calibration or positioning would therefore be a thermally conductive contact between the
Kontaktelementen bei gleicher Temperatur, wobei die zweite mögliche Eichposition, bei der gerade ein wärmeleitender Kontakt zwischen den Kontaktelementen vorhanden ist, für einen Temperaturunterschied ist, bei welchem die Temperatur im Innenraum des Contact elements at the same temperature, wherein the second possible calibration position, in which there is just a thermally conductive contact between the contact elements, for a temperature difference, wherein the temperature in the interior of the
Scheinwerfergehäuses gerade höher ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers. Headlight housing is just higher than the temperature in the area outside the vehicle headlight.
Im Folgenden ist die Erfindung an Hand der Zeichnungen näher erläutert. In dieser zeigt In the following the invention with reference to the drawings is explained in more detail. In this shows
Fig. 1 einen Querschnitt eines beispielhaften Kraftfahrzeugscheinwerfers, 1 shows a cross section of an exemplary motor vehicle headlight,
Fig. 2 eine Seitenansicht einer erfindungsgemäßen Kühlkörpervorrichtung, 2 is a side view of a heat sink device according to the invention,
Fig. 3 eine Seitenansicht der Kühlkörpervorrichtung aus Fig. 2 im Zustand des Fig. 3 is a side view of the heat sink device of FIG. 2 in the state of
Wärmeaustausches, Heat exchange,
Fig. 4 eine Seitenansicht der Kühlkörpervorrichtung aus Fig. 2 im Zustand, bei dem kein Wärmeaustausch stattfindet, FIG. 4 is a side view of the heat sink device of FIG. 2 in the condition of no heat exchange; FIG.
Fig. 5, 6, 7, 8, 9 und 10 zeigen weitere mögliche Ausführungsformen der 5, 6, 7, 8, 9 and 10 show further possible embodiments of the
Kühlkörpervorrichtung. Heat sink device.
In Fig. 1 ist der erfindungsgemäße Kraftfahrzeugscheinwerfer 100 mit einem In Fig. 1, the motor vehicle headlamp 100 according to the invention with a
Scheinwerfergehäuse 102 und einer Abdeckscheibe 103 abgebildet. Innerhalb des Headlight housing 102 and a cover 103 shown. Within the
Kraftfahrzeugscheinwerfers 100 sind Lichtquellen 104, 105 angebracht, die jeweils Licht auf einen zugeordneten Reflektor werfen, der unterhalb jeder Lichtquelle angeordnet ist. Automotive headlamps 100 are mounted with light sources 104, 105, each of which emit light onto an associated reflector disposed below each light source.
Richtungsangaben wie„oben",„unten",„vorn" oder„hinten" beziehen sich auf einen Kraftfahrzeugscheinwerfer in eingebautem Zustand. Directional indications such as "top", "bottom", "front" or "rear" refer to a motor vehicle headlamp when installed.
Wie in Fig. 1 zu sehen, ist das erste Kühlkörperelement 106 der Kühlkörpervorrichtung 200 in Wärmeübertragungskontakt mit der im Kraftfahrzeugscheinwerfer 100 angeordneten Lichtquelle 104 platziert und ein zweites Kühlkörperelement 107 ist außerhalb des As seen in FIG. 1, the first heat sink element 106 of the heat sink device 200 is placed in heat transfer contact with the light source 104 disposed in the vehicle headlamp 100, and a second heat sink element 107 is outside of
Kraftfahrzeugscheinwerfers 100 im eingebauten Zustand des Kraftfahrzeugscheinwerfers 100 in Richtung Motorraum gerichtet. Eine Detailansicht der Kühlkörpervorrichtung 200 und der umfassten Komponenten ist in Fig. 2 dargestellt. Motor vehicle headlight 100 in the installed state of the motor vehicle headlight 100 directed towards the engine compartment. A detailed view of the heat sink device 200 and the components included is shown in FIG.
Wie in Fig. 2 zu sehen, umfasst die Kühlkörpervorrichtung 200 zwei durch einen Luftspalt 209 voneinander getrennte Kühlkörperelemente 201, 202, wobei beide Kühlkörperelemente 201, 202 zueinander feststehend positioniert sind. Zwischen den Kühlkörperelementen 201, 202 ist die Kontaktiervorrichtung 210 angeordnet, die einen Wärmekontakt zwischen den beiden getrennten Kühlkörperelementen 201, 202 herstellen kann. Diese As can be seen in FIG. 2, the heat sink device 200 comprises two heat sink elements 201, 202 separated from one another by an air gap 209, wherein both heat sink elements 201, 202 are positioned stationary relative to one another. Between the heat sink elements 201, 202, the contacting device 210 is arranged, which can establish a thermal contact between the two separate heat sink elements 201, 202. These
Kontaktiervorrichtung 210 umfasst die wärmeleitenden Kontaktelemente 203, 204, sowie die zugehörigen temper atur abhängigen Steuerelemente 207, 208. Contacting device 210 includes the heat-conducting contact elements 203, 204, and the associated tempera ture-dependent controls 207, 208th
Ein erstes Kontaktelement 203 ist in einer im ersten Kühlkörperelement 201 vorhandenen Ausnehmung 205 und ein zweites Kontaktelement 204 ist in einer im zweiten A first contact element 203 is in a recess 205 present in the first heat sink element 201, and a second contact element 204 is in one in the second
Kühlkörperelement 202 vorhandenen Ausnehmung 206 verschiebbar gelagert. Dem ersten Kontaktelement 203 ist ein erstes Steuerelement 207 und dem zweiten Kontaktelement 204 ein zweites Steuerelement 208 zugeordnet. Heat sink element 202 existing recess 206 slidably mounted. A first control element 207 is assigned to the first contact element 203, and a second control element 208 is assigned to the second contact element 204.
Die Kontaktelemente 203, 204 können durch die jeweiligen Steuerelemente 207, 208, welche in dem gezeigten Beispiel aus Bimetall gefertigt sind, in die bzw. aus den Ausnehmungen 205, 206 zumindest zum Teil hinein bzw. heraus bewegt werden. The contact elements 203, 204 can be moved into or out of the recesses 205, 206, at least in part, by the respective control elements 207, 208, which are made of bimetal in the example shown.
Fig. 3 zeigt den Zustand der Kühlkörpervorrichtung 200 aus Fig. 2, bei dem die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers 100 höher ist als die Temperatur im Bereich des in den Motorraum gerichteten, zweiten Kühlkörperelements 202, wobei das erste Kontaktelement 203 durch das temperaturabhängige, erste Steuerelement 207 aus der Ausnehmung 205 des ersten Kühlkörperelements 201 bewegt worden ist, um so FIG. 3 shows the state of the heat sink device 200 from FIG. 2, in which the temperature in the interior of the motor vehicle headlight 100 is higher than the temperature in the region of the second heat sink element 202 directed into the engine compartment, the first contact element 203 being affected by the temperature-dependent, first Control element 207 has been moved out of the recess 205 of the first heat sink element 201 so as to
wärmeleitenden Kontakt mit dem zweiten Kontaktelement 204 des zweiten thermally conductive contact with the second contact element 204 of the second
Kühlkörperelements 202 herzustellen und Wärme an das zweite Kühlkörperelement 202 abzuführen. Produce heat sink element 202 and dissipate heat to the second heat sink element 202.
In Fig. 4 ist der Zustand der Kühlkörpervorrichtung 200 aus Fig. 2 abgebildet, bei dem die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers 100 niedriger ist als die FIG. 4 shows the state of the heat sink device 200 of FIG. 2, in which the temperature in the interior of the motor vehicle headlight 100 is lower than that
Temperatur im Bereich des in den Motorraum gerichteten, zweiten Kühlkörperelements 202, wobei das zweite Kontaktelement 204 durch das temperaturabhängige, zweite Steuerelement 208 in die Ausnehmung 206 des zweiten Kühlkörperelements 202 bewegt worden ist, um so den Kontakt mit dem ersten Kontaktelement 203 des ersten Kühlkörperelements 201 zu unterbrechen, sodass jeglicher Wärmaustausch zwischen den Kühlkörperelementen 201, 202 unterbunden wird. Temperature in the region of the motor space directed to the second heat sink element 202, wherein the second contact element 204 has been moved by the temperature-dependent second control element 208 in the recess 206 of the second heat sink element 202 so as to make contact with the first contact element 203 of the first heat sink element 201 to interrupt, so that any heat exchange between the heat sink elements 201, 202 is prevented.
Weitere mögliche Ausführungsformen der gegenständlichen Erfindung sind in den weiteren Figuren dargestellt, so können mehrere Ausnehmungen 505, 506, 511, 512, 606, 612, 705, 706, 712 für die jeweiligen Kühlkörperelemente 501, 502, 601, 602, 701, 702 vorgesehen sein, wie in Fig. 5, 6 und 7 gezeigt. Further possible embodiments of the subject invention are shown in the further figures, so several recesses 505, 506, 511, 512, 606, 612, 705, 706, 712 for the respective heat sink elements 501, 502, 601, 602, 701, 702 are provided be as shown in Fig. 5, 6 and 7.
In Fig. 5 sind je Kühlkörperelement 501, 502 zwei Ausnehmungen 505, 506, 511, 512 In Fig. 5 are each heat sink element 501, 502 two recesses 505, 506, 511, 512th
vorgesehen, wobei ein erstes Kontaktelement 503 dem ersten Kühlkörperelement 501 und ein zweites Kontaktelement 504 dem zweiten Kühlkörperelement 502 zugeordnet sind und derart in den vorhandenen Ausnehmungen 505, 506, 511, 512 angeordnet sind, dass diese in keiner Weise durch ein zumindest teilweises Herausschieben aus den Ausnehmungen 505, 512 in Kontakt treten können, wobei jedes Kontaktelement 503, 504 in die ihm jeweils gegenüberliegende Ausnehmung 506, 511 zumindest zum Teil bewegt werden kann, um einen Wärmeaustausch mit dem ihm nicht zugeordneten Kühlkörperelement 501, 502 herzustellen. provided, wherein a first contact element 503 the first heat sink element 501 and a second contact element 504 are associated with the second heat sink element 502 and are arranged in the existing recesses 505, 506, 511, 512, that they in no way by an at least partial pushing out of the Recesses 505, 512 can come into contact, wherein each contact element 503, 504 can be moved at least in its respective opposite recess 506, 511 at least in part to produce a heat exchange with the unassigned heat sink member 501, 502.
Fig. 6 zeigt eine ähnliche Anordnung wie in Fig.5, wobei das erste und zweite Fig. 6 shows a similar arrangement as in Figure 5, wherein the first and second
Kontaktelement 603, 604 einem gemeinsamen zweiten Kühlkörperelement 602 in Contact element 603, 604 a common second heat sink element 602 in
voneinander getrennten Ausnehmungen 606, 612 zugeordnet und angeordnet sind, und jeweils aus diesen zumindest zum Teil heraus bewegt werden können, um einen mutually separate recesses 606, 612 are assigned and arranged, and can be moved out of these at least in part to a
Wärmeaustausch mit dem ersten Kühlkörperelement 601 herzustellen, welches ohne Ausnehmungen und zugeordneten Kontaktelementen vorgesehen ist. Ein ähnliches Beispiel mit lediglich einem einzigen Kontaktelement 803, 904 ist in Fig. 8 und 9 gezeigt, wobei in Fig. 8 im Unterschied zu Fig. 9 eine zusätzliche Ausnehmung 805 in dem ersten Heat exchange with the first heat sink element 601 produce, which is provided without recesses and associated contact elements. A similar example with only a single contact element 803, 904 is shown in Figs. 8 and 9, wherein in Fig. 8, in contrast to Fig. 9, an additional recess 805 in the first
Kühlkörperelement 801 vorgesehen ist. Heat sink element 801 is provided.
Fig. 7 zeigt zum Unterschied der in Fig. 2 dargestellten Ausführungsform eine zusätzliche zweite Ausnehmung 712 im zweiten Kühlkörperelement 702, wobei das zweite Fig. 7 shows the difference of the embodiment shown in Fig. 2, an additional second recess 712 in the second heat sink element 702, wherein the second
Kontaktelement 704 hufeisenartig ausgeformt ist, sodass es in beiden Ausnehmungen 706, 712 des zweiten Kühlkörperelements 702 angeordnet werden kann. Contact element 704 is horseshoe-shaped, so that it can be arranged in both recesses 706, 712 of the second heat sink element 702.
In Fig. 10 ist das erste Kontaktelement 1003 auf der oberen bzw. unteren Seite des ersten Kühlkörperelements 1001 vorzugsweise beweglich angeordnet, wobei das erste In FIG. 10, the first contact element 1003 is preferably movably arranged on the upper and lower sides of the first heat sink element 1001, respectively, the first one
Kühlkörperelement 1001 keine Ausnehmungen aufweist, und das zweite Kontaktelement 1004 in der Ausnehmung 1006 des zweiten Kühlkörperelements 1002 angeordnet und derart ausgeformt ist, dass es beim zumindest teilweisen Herausschieben aus der Ausnehmung 1006 Wärmeaustausch mit dem vorzugsweise beweglichen ersten Kontaktelement 1003 herstellen kann. Heatsink element 1001 has no recesses, and the second contact element 1004 is arranged in the recess 1006 of the second heat sink element 1002 and is shaped such that it can produce heat exchange with the preferably movable first contact element 1003 during the at least partial pushing out of the recess 1006.
Es ist noch anzumerken, dass in den Fig. 5, 6, 7, 8, 9 und 10 auf ein Einzeichnen der jeweiligen Steuerungselemente 207, 208 verzichtet worden ist, wobei die Kontaktelemente dieser Ausführungsformen sehr wohl mit oben beschriebenen Steuerungselementen 207, 208 bewegt werden können. It should also be noted that in FIGS. 5, 6, 7, 8, 9 and 10, a drawing of the respective control elements 207, 208 has been omitted, wherein the contact elements of these embodiments are very well moved with control elements 207, 208 described above can.
Weiters können bei den in Fig. 5, 6, 8 und 9 dargestellten Ausführungsformen Furthermore, in the embodiments illustrated in FIGS. 5, 6, 8 and 9
Temperatursensoren vorgesehen sein, wobei hierbei ein Temperatursensor im Innenraum des Kraftfahrzeugscheinwerfers 100 und ein weiterer Temperatursensor in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers 100 , an dem das zweite Kühlkörperelement 502, 602, 802, 902 angeordnet ist, angebracht ist. Eine Steuerung vergleicht die von den Temperature sensors may be provided, in which case a temperature sensor in the interior of the motor vehicle headlight 100 and another temperature sensor in the area outside the motor vehicle headlight 100, on which the second heat sink element 502, 602, 802, 902 is arranged attached. A controller compares those of the
Temperatursensoren jeweils erfassten Temperaturen, vergleicht diese und verschiebt das jeweilige Kontaktelement 503, 504, 603, 604, 803, 904 über das dem Kontaktelement 503, 504, 603, 604, 803, 904 zugeordnete, in diesen Figuren nicht eingezeichnete Steuerungselement 207, 208 mit Hilfe eines Antriebs, beispielsweise einem Linearmotor oder Balg- und Temperature sensors each detected temperatures, comparing them and moves the respective contact element 503, 504, 603, 604, 803, 904 via the contact element 503, 504, 603, 604, 803, 904 associated, not shown in these figures control element 207, 208 with Help a drive, such as a linear motor or bellows and
Membranantriebe, sodass nach den oben beschriebenen Temperaturbedingungen Membrane drives, so after the temperature conditions described above
Wärmekontakt hergestellt oder unterbunden werden kann. Thermal contact can be made or prevented.
BEZUGSZEICHENLISTE LIST OF REFERENCE NUMBERS
Kraftfahrzeugscheinwerfer  Motor vehicle headlamps
Scheinwerfergehäuse 102  Headlight housing 102
Abdeckscheibe 103  Cover plate 103
Lichtquellen 104, 105  Light sources 104, 105
Kühlkörpervorrichtung 200  Heatsink device 200
erstes Kühlkörperelement 106, 201, 501, 601, 701, 801, 901, 1001 first heat sink element 106, 201, 501, 601, 701, 801, 901, 1001
zweites Kühlkörperelement 107, 202, 502, 602, 702, 802, 902, 1002 second heat sink element 107, 202, 502, 602, 702, 802, 902, 1002
Luftspalt 209  Air gap 209
Kontaktiervorrichtung 210  Contacting device 210
erstes Kontaktelement 108, 203, 503, 603, 703, 803, 904, 1003 first contact element 108, 203, 503, 603, 703, 803, 904, 1003
zweites Kontaktelement 109, 204, 504, 604, 704, 1004 second contact element 109, 204, 504, 604, 704, 1004
erstes Steuerelement 207 first control 207
zweites Steuerelement 208 second control 208
Ausnehmung 205, 206, 505, 506, 511, 512, 606, 612, 705, 706, 712, 805, 806, 906, 1006  Recess 205, 206, 505, 506, 511, 512, 606, 612, 705, 706, 712, 805, 806, 906, 1006

Claims

PATENTANSPRÜCHE
1. Kraftfahrzeugscheinwerfer (100) mit einem Scheinwerfergehäuse (102) und einer  1. Motor vehicle headlight (100) with a headlight housing (102) and a
Abdeckscheibe (103) und mit zumindest einer in diesem Kraftfahrzeugscheinwerfer (100) angeordneten Lichtquelle (104, 105), wobei das Licht der zumindest einen Lichtquelle (104, 105) in Form einer definierten Lichtverteilung vor dem Kraftfahrzeugscheinwerfer (100) abgebildet werden kann, und wobei zur Kühlung der zumindest einen Lichtquelle (104, 105) eine Kühlkörpervorrichtung (200) vorgesehen ist, dadurch gekennzeichnet, dass die Kühlkörpervorrichtung (200) zwei durch einen Luftspalt (209) voneinander getrennte Kühlkörperelemente (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) umfasst, welche derart angeordnet sind, dass ein erstes Kühlkörperelement (106, 201, 501, 601, 701, 801, 901, 1001) im Innenraum des Kraftfahrzeugscheinwerfers (100) und ein zweites Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) außerhalb des Cover (103) and with at least one in this motor vehicle headlight (100) arranged light source (104, 105), wherein the light of the at least one light source (104, 105) in the form of a defined light distribution in front of the motor vehicle headlight (100) can be mapped, and wherein a cooling body device (200) is provided for cooling the at least one light source (104, 105), characterized in that the cooling body device (200) has two heat sink elements (106, 107, 201, 202, 501,) separated from each other by an air gap (209). 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) arranged such that a first heat sink element (106, 201, 501, 601, 701, 801, 901, 1001) in the interior of the motor vehicle headlight (100) and a second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) outside the
Kraftfahrzeugscheinwerfers (100) angebracht ist, wobei die Kühlkörpervorrichtung (200) mit einer Kontaktiervorrichtung (210) versehen ist, die derart ausgebildet ist, dass ein Motor vehicle headlight (100) is mounted, wherein the heat sink device (200) is provided with a contacting device (210) which is formed such that a
Wärmeaustausch zwischen den Kühlkörperelementen (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) über diese Kontaktiervorrichtung (210) stattfindet, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers (100) höher ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers (100), an dem das zweite Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) angebracht ist, und dass kein Wärmeaustausch zwischen den Kühlkörperelementen (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) möglich ist, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers (100) niedriger ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers (100), an dem das zweite Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) angebracht ist. Heat exchange between the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) via this contacting device (210) takes place when the temperature in the interior of the vehicle headlamp (100) is higher than the temperature in the area outside the vehicle headlamp (100) to which the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) is attached, and that no heat exchange between the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) is possible when the temperature in the interior of the motor vehicle headlight (100) is lower as the temperature in the area outside the vehicle headlamp (100) to which the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) is attached.
2. Kraftfahrzeugscheinwerfer (100) nach Anspruch 1, dadurch gekennzeichnet, dass die Kühlkörperelemente (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) derart angeordnet sind, dass das erste Kühlkörperelement (106, 201, 501, 601, 701, 801, 901, 1001) in Wärmeübertragungskontakt mit der zumindest einen im 2. Motor vehicle headlight (100) according to claim 1, characterized in that the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) such arranged that the first heat sink element (106, 201, 501, 601, 701, 801, 901, 1001) in heat transfer contact with the at least one in the
Kraftfahrzeugscheinwerfer (100) angeordneten Lichtquelle (104, 105) platziert ist. Motor vehicle headlight (100) arranged light source (104, 105) is placed.
3. Kraftfahrzeugscheinwerfer (100) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das zweite Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002)) außerhalb des 3. Motor vehicle headlight (100) according to claim 1 or 2, characterized in that the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002)) outside the
Kraftfahrzeugscheinwerfers an der Abdeckscheibe abgewandten Seite des Motor vehicle headlamps on the side facing away from the cover
Scheinwerfergehäuses angeordnet ist, wobei vorzugsweise das zweite Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) im eingebauten Zustand des Spotlight housing is arranged, wherein preferably the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) in the installed state of
Kraftfahrzeugscheinwerfers (100) in einem Motorraum positioniert ist. Motor vehicle headlight (100) is positioned in an engine compartment.
4. Kraftfahrzeugscheinwerfer (100) nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Kühlkörperelemente (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) in Bezug zueinander feststehend angeordnet sind. 4. Motor vehicle headlight (100) according to claim 1 to 3, characterized in that the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002 ) are fixed with respect to each other.
5. Kraftfahrzeugscheinwerfer (100) nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Kontaktiervorrichtung (210) zumindest ein wärmeleitendes Kontaktelement (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) umfasst, welches bezüglich der Kühlkörperelemente (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) beweglich ist. 5. Motor vehicle headlight (100) according to claim 1 to 4, characterized in that the contacting device (210) at least one heat-conducting contact element (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) movable with respect to the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002).
6. Kraftfahrzeugscheinwerfer (100) nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass die Kontaktiervorrichtung (210) ein Kontaktelement (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) oder mehrere Kontaktelemente (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) umfasst, welches einen Wärmeaustausch zwischen den Kühlkörperelementen (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) ermöglicht, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers (100) höher ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers (100), an dem das zweite Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) angebracht ist, wobei das Kontaktelement (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) oder die Kontaktelemente (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) der Kontaktiervorrichtung (210) dabei in gleichzeitigem wärmeleitenden Kontakt mit dem ersten Kühlkörperelement (106, 201, 501, 601, 701, 801, 901, 1001) und dem zweiten 6. Motor vehicle headlight (100) according to claim 1 to 5, characterized in that the contacting device (210) is a contact element (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) or a plurality of contact elements (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004), which heat exchange between the heat sink elements (106, 107, 201, 202 , 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) when the temperature in the interior of the motor vehicle headlight (100) is higher than the temperature in the area outside the motor vehicle headlight (100 ) to which the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) is attached, the contact element (108, 109, 203, 204, 503, 504, 603, 604, 703, 704 , 803, 904, 1003, 1004) or the contact elements (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) of the contacting device (210) in simultaneous heat electrically conductive contact with the first heat sink element (106, 201, 501, 601, 701, 801, 901, 1001) and the second
Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) sind, und dass kein Heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) are, and that no
Wärmeaustausch zwischen den Kühlkörperelementen (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) möglich ist, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers (100) niedriger ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers (100), an dem das zweite Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) angebracht ist, indem die umfassten Kontaktelemente (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) der Kontaktiervorrichtung (210) dabei nur in Kontakt mit jeweils einem Kühlkörperelement (106, 107, 201, 202, 501, 502, 601, 602,Heat exchange between the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) is possible when the temperature in the interior of the motor vehicle headlight (100) lower than the temperature in the area outside the motor vehicle headlight (100) at which the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) is mounted by the contact elements (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) of the contacting device (210 ) only in contact with a respective heat sink element (106, 107, 201, 202, 501, 502, 601, 602,
701, 702, 801, 802, 901, 902, 1001, 1002) oder keinem Kühlkörperelement (106, 107, 201, 202,701, 702, 801, 802, 901, 902, 1001, 1002) or no heat sink element (106, 107, 201, 202,
501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) stehen. 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002).
7. Kraftfahrzeugscheinwerfer (100) nach Anspruch 1 bis 6, dadurch gekennzeichnet, dass die Kontaktiervorrichtung (210) ein erstes und ein zweites Kontaktelement (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) umf asst, welche einen Wärmeaustausch zwischen den Kühlkörperelementen (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) ermöglichen, wenn die Temperatur im Innenraum des 7. Motor vehicle headlight (100) according to claim 1 to 6, characterized in that the contacting device (210) has a first and a second contact element (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) which allow heat exchange between the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002), when the temperature in the interior of the
Kraftfahrzeugscheinwerfers (100) höher ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers (100), an dem das zweite Kühlkörperelement (107, 202, 502, 602,Motor vehicle headlight (100) is higher than the temperature in the area outside the motor vehicle headlight (100) on which the second heat sink element (107, 202, 502, 602,
702, 802, 902, 1002) angebracht ist, wobei das erste Kontaktelement (108, 203, 503, 603, 703, 803, 904, 1003) dabei in gleichzeitigem wärmeleitenden Kontakt mit dem ersten 702, 802, 902, 1002), wherein the first contact element (108, 203, 503, 603, 703, 803, 904, 1003) thereby in simultaneous heat-conducting contact with the first
Kühlkörperelement (106, 201, 501, 601, 701, 801, 901, 1001) und zugleich über das zweite Kontaktelement (109, 204, 504, 604, 704, 1004) mit dem zweiten Kühlkörperelement (107, 202,Heatsink element (106, 201, 501, 601, 701, 801, 901, 1001) and at the same time via the second contact element (109, 204, 504, 604, 704, 1004) with the second heat sink element (107, 202,
502, 602, 702, 802, 902, 1002) steht, und dass kein Wärmeaustausch zwischen den 502, 602, 702, 802, 902, 1002), and that no heat exchange between the
Kühlkörperelementen (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) möglich ist, wenn die Temperatur im Innenraum des Kraftfahrzeugscheinwerfers (100) niedriger ist als die Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers (100), an dem das zweite Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) angebracht ist, indem die Kontaktelemente (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) der Kontaktiervorrichtung (210) dabei nur in Kontakt mit jeweils einem Kühlkörperelement (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) stehen, aber nicht miteinander. Heatsink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) is possible when the temperature in the interior of the motor vehicle headlight (100) is lower than the temperature in the area outside the motor vehicle headlight (100) to which the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) is attached by the contact elements (108, 109, 203, 204, 503 , 504, 603, 604, 703, 704, 803, 904, 1003, 1004) of the contacting device (210) only in contact with a respective heat sink element (106, 107, 201, 202, 501, 502, 601, 602, 701 , 702, 801, 802, 901, 902, 1001, 1002), but not with each other.
8. Kraftfahrzeugscheinwerfer (100) nach Anspruch 5 bis 7, dadurch gekennzeichnet, dass zumindest ein Kontaktelement (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) der Kontaktiervorrichtung (210) in zumindest einer Ausnehmung (205, 206, 505, 506, 511, 512, 606, 612, 705, 706, 712, 805, 806, 906, 1006) in zumindest einem Kühlkörperelement (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) verschiebbar gelagert ist. 8. Motor vehicle headlight (100) according to claim 5 to 7, characterized in that at least one contact element (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) of the contacting device (210) in at least one recess (205, 206, 505, 506, 511, 512, 606, 612, 705, 706, 712, 805, 806, 906, 1006) in at least one heat sink element (106, 107, 201, 202 , 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) is slidably mounted.
9. Kraftfahrzeugscheinwerfer (100) nach Anspruch 5 bis 8, dadurch gekennzeichnet, dass genau zwei Kontaktelemente (106, 109, 203, 204, 503, 504, 603, 604, 703, 704, 1003, 1004) der Kontaktiervorrichtung (210) in jeweils einer zugeordneten Ausnehmung (205, 206, 505, 506, 511, 512, 606, 612, 705, 706, 712, 805, 806, 906, 1006) in den Kühlkörperelementen (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) verschiebbar gelagert sind, 9. Motor vehicle headlight (100) according to claim 5 to 8, characterized in that exactly two contact elements (106, 109, 203, 204, 503, 504, 603, 604, 703, 704, 1003, 1004) of the contacting device (210) in each of an associated recess (205, 206, 505, 506, 511, 512, 606, 612, 705, 706, 712, 805, 806, 906, 1006) in the heat sink elements (106, 107, 201, 202, 501, 502 , 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) are displaceably mounted,
10. Kraftfahrzeugscheinwerfer (100) nach Anspruch 5 bis 9, dadurch gekennzeichnet, dass die Kontaktelemente (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) der Kontaktiervorrichtung (210) durch zumindest ein dem jeweiligen Kontaktelement (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) zugeordnetes Steuerelement (207, 208) bewegt werden können. 10. Motor vehicle headlight (100) according to claim 5 to 9, characterized in that the contact elements (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) of the contacting device ( 210) by at least one of the respective contact element (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004) associated control element (207, 208) can be moved.
11. Kraftfahrzeugscheinwerfer (100) nach Anspruch 7 bis 10, dadurch gekennzeichnet, dass dem ersten Kontaktelement (108, 203, 503, 603, 703, 803, 904, 1003) ein erstes Steuerelement (207) zugeordnet ist und dem zweiten Kontaktelement (109, 204, 504, 604, 704, 1004) ein zweites Steuerelement (208) zugeordnet ist. 11. Motor vehicle headlight (100) according to claim 7 to 10, characterized in that the first contact element (108, 203, 503, 603, 703, 803, 904, 1003) is associated with a first control element (207) and the second contact element (109 , 204, 504, 604, 704, 1004) is associated with a second control element (208).
12. Kraftfahrzeugscheinwerfer (100) nach Anspruch 11, dadurch gekennzeichnet, dass das erste Steuerelement (207) derart ausgebildet ist, dass bei steigender Temperatur im 12. Motor vehicle headlight (100) according to claim 11, characterized in that the first control element (207) is designed such that with increasing temperature in
Innenraum des Kraftfahrzeugscheinwerfers (100) das erste Kontaktelement (108, 203, 503, 603, 703, 803, 904, 1003) durch das erste Steuerelement (207) zumindest teilweise aus der zugeordneten Ausnehmung (205, 505, 506, 606, 705, 805, 806, 906) geschoben wird, sodass ein wärmeleitender Kontakt mit dem zweiten Kontaktelement (109, 204, 504, 604, 704, 1004) oder dem zweiten Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) hergestellt werden kann. Interior of the motor vehicle headlight (100) the first contact element (108, 203, 503, 603, 703, 803, 904, 1003) by the first control element (207) at least partially from the associated recess (205, 505, 506, 606, 705, 805, 806, 906) is pushed so that a thermally conductive contact with the second contact element (109, 204, 504, 604, 704, 1004) or the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002 ) can be produced.
13. Kraftfahrzeugscheinwerfer (100) nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass das zweite Steuerelement (208) derart ausgebildet ist, dass bei steigender Temperatur in dem Bereich außerhalb des Kraftfahrzeugscheinwerfers (100), an dem das zweite 13. Motor vehicle headlight (100) according to claim 11 or 12, characterized in that the second control element (208) is designed such that with increasing temperature in the area outside the motor vehicle headlight (100) on which the second
Kühlkörperelement (107, 202, 502, 602, 702, 802, 902, 1002) angebracht ist, das zweite Heatsink element (107, 202, 502, 602, 702, 802, 902, 1002) is attached, the second
Kontaktelement (109, 204, 504, 604, 704, 1004) durch das zweite Steuerelement (208) weiter in die zugeordnete Ausnehmung (206, 511, 512, 612, 706, 712, 1006) eingefahren wird, sodass ein wärmeleitender Kontakt mit dem ersten Kontaktelement (108, 203, 503, 603, 703, 1003) oder dem ersten Kühlkörperelement (106, 201, 501, 601, 701, 801, 901, 1001) unterbunden werden kann. Contact element (109, 204, 504, 604, 704, 1004) through the second control (208) further in the associated recess (206, 511, 512, 612, 706, 712, 1006) is retracted so that a thermally conductive contact with the first contact element (108, 203, 503, 603, 703, 1003) or the first heat sink element (106, 201 , 501, 601, 701, 801, 901, 1001) can be prevented.
14. Kraftfahrzeugscheinwerfer (100) nach Anspruch 10 bis 13, dadurch gekennzeichnet, dass die Steuerelemente (207, 208) aus einem Material beschaffen sind, welches sich 14. Motor vehicle headlight (100) according to claim 10 to 13, characterized in that the control elements (207, 208) are made of a material which is
temperaturabhängig ausdehnt bzw. zusammenzieht. temperature-dependent expands or contracts.
15. Kraftfahrzeugscheinwerfer (100) nach Anspruch 10 bis 14, dadurch gekennzeichnet, dass die Steuerelemente (207, 208) aus Bimetall gefertigt sind. 15. Motor vehicle headlight (100) according to claim 10 to 14, characterized in that the control elements (207, 208) are made of bimetal.
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GB2497724A (en) * 2011-12-08 2013-06-26 Nissan Motor Mfg Uk Ltd Lighting unit mounting for a vehicle
US9285090B2 (en) * 2014-07-10 2016-03-15 Chen-Wei Hsu Vehicle headlight assembly
DE102014226647A1 (en) * 2014-12-19 2016-06-23 Osram Gmbh LED carrier with an LED and luminaire with such an LED carrier
US10429026B2 (en) * 2017-06-16 2019-10-01 GM Global Technology Operations LLC Lamp assembly with anisotropic heat spreader and vehicle having the same
JP6504219B2 (en) * 2017-09-20 2019-04-24 マツダ株式会社 Vehicle front structure
JP2019164916A (en) * 2018-03-19 2019-09-26 株式会社小糸製作所 Vehicle lamp fitting

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KR102200885B1 (en) 2021-01-12
AT518977B1 (en) 2018-03-15
JP2019536229A (en) 2019-12-12
WO2018090067A1 (en) 2018-05-24
US20200072435A1 (en) 2020-03-05
AT518977A4 (en) 2018-03-15
EP3542098B1 (en) 2021-12-15
US10605429B2 (en) 2020-03-31
JP6893982B2 (en) 2021-06-23
KR20190080913A (en) 2019-07-08
CN109964079B (en) 2022-01-11
CN109964079A (en) 2019-07-02

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