• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Motor vehicle headlight (100) having a headlight housing (102) and a cover (103) with at least one light source (104, 105) arranged in this motor vehicle headlight (100), a heat sink device (200) being provided for cooling the at least one light source (104, 105). wherein the heat sink device (200) has two heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001) separated from one another by an air gap (209), 1002) which are 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) is mounted outside the motor vehicle headlight (100), wherein the heat sink device (200) is provided with a contacting device (210), the heat exchange between the heat sink elements (106, 107, 201, 202, 501, 502, 60 1, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) via this contacting device (210), when the temperature in the interior of the motor vehicle headlight (100) is higher than the temperature in the region outside the motor vehicle headlight (100 ), 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 than the temperature in the area outside the motor vehicle headlight (100).
    公开号:AT518977A4
    申请号:T51043/2016
    申请日:2016-11-17
    公开日:2018-03-15
    发明作者:Mayer Peter；Brunner Michael；Ebner Martin
    申请人:Zkw Group Gmbh；
    IPC主号:
    专利说明:

    Summary
    Motor vehicle headlight (100) with a headlight housing (102) and one
    Cover pane (103) with at least one light source (104, 105) arranged in this motor vehicle headlight (100), a heat sink device (200) being provided for cooling the at least one light source (104, 105), the
    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) separated from one another by an air gap (209), which are arranged in this way are that a first heat sink element (106, 201, 501, 601, 701, 801, 901, 001) in the interior of 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) being provided with a contacting device (210) for exchanging heat 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) if the temperature in the interior of the motor vehicle headlight (100) is higher than the temperature in the region outside the motor vehicle headlight (100), 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 if the temperature in the interior of the motor vehicle headlight (100) is lower than the temperature in the region outside the motor vehicle headlight (100).
    Fig. 1/19
    P14731
    Heat sink with variable thermal resistance
    The invention relates to a motor vehicle headlight with a headlight housing and a cover plate with at least one light source arranged in this motor vehicle headlight, the light of the at least one light source being able to be imaged in front of the motor vehicle headlight in accordance with a defined light distribution, and a heat sink device being provided for cooling the at least one light source is.
    In the case of a motor vehicle headlight, light sources, such as incandescent lamps, high-intensity discharge lamps or light-emitting diodes, are generally arranged within the headlight housing. When the motor vehicle headlight is in operation, these conventional light sources and their components generate heat which has to be dissipated. In particular, light emitting diodes should be kept below their maximum operating temperature in order to ensure optimum performance and durability.
    As a rule, the ambient temperature of the operating vehicle headlight is lower than inside the motor vehicle headlight itself, and so the most practical solution is to give off the heat generated inside the motor vehicle headlight to the ambient temperature.
    However, since the headlight housing of a motor vehicle headlight and a cover plate covering the front area of the housing usually fluidically separate the interior of the motor vehicle headlight from the environment in order to prevent contaminants such as dust or other dirt particles from penetrating into the interior of the vehicle
    To prevent motor vehicle headlights, a separate cooling device is provided, which is attached so that it cools the interior of the motor vehicle headlight and the light sources arranged therein by emitting heat to the external environment.
    Automotive headlights are typically attached to a portion of the vehicle frame that is adjacent to the engine compartment, which is often at significantly higher temperatures than the ambient ambient temperature. For example, during the
    2.19
    P14731
    Vehicle operation in the engine compartment emits heat from the internal combustion engine and various components. Likewise, the air in the engine compartment is heated by solar energy when the vehicle is in use and not in use. It would therefore be obvious to dissipate the temperature inside the motor vehicle headlight as described in patent application DE 10 2006 057 569 B4 via the cover plate of an installed motor vehicle headlight. However, this is not disregarded for optical reasons and in order not to restrict the functionality of the cover plate, which can be partially transparent in the light-emitting direction of the motor vehicle headlight.
    In order not to interfere with the exterior appearance of the vehicle through further structural measures, heat sink devices are attached to the vehicle headlights in such a way that they are arranged in the direction of the engine compartment when installed. As already mentioned, the temperature in the engine compartment can optionally be the same or higher than the temperature inside the motor vehicle headlight. In this case, the interior of the motor vehicle headlight cannot be cooled by the heat sink device arranged in the direction of the engine compartment, but would even heat it up.
    It is therefore advantageous to equip the motor vehicle headlight with a cooling device which shields the interior of the motor vehicle headlight and the light sources arranged therein from the relatively high temperatures in the engine compartment.
    The object of the invention is to provide, above-mentioned restrictions and other disadvantages of the prior art, a motor vehicle headlight which has a heat sink device which cools the interior of the motor vehicle headlight and shields the light sources arranged therein from the relatively high temperatures in the engine compartment.
    This object is achieved in that the heat sink device comprises two heat sink elements which are separated from one another by an air gap and which are arranged such that a first heat sink element is fitted in the interior of the motor vehicle headlight and a second heat sink element is fitted outside the motor vehicle headlight, the heat sink device being provided with a contacting device, which is designed such that heat exchange between the heat sink elements via this
    3.19
    P14731
    Contacting device takes place when the temperature inside 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, on which the second
    Heatsink element is attached.
    An advantageous development of the device according to the invention provides that the heat sink elements are arranged in such a way that the first heat sink element is placed in heat transfer contact with the at least one light source arranged in the headlight housing.
    Furthermore, it can be expedient if the second heat sink element, when the motor vehicle headlight is installed, is directed in the direction of the engine compartment, preferably is positioned in an engine compartment.
    It can be advantageous if the heat sink elements are arranged so as to be fixed with respect to one another.
    Advantageously, the contacting device can comprise at least one heat-conducting contact element which is movable with respect to the heat sink elements.
    In an expedient embodiment, it can further be provided that the
    Contacting device comprises a contact element or a plurality of contact elements, which enables heat exchange between the heat sink elements if 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, the contact element or the contact elements of the
    Contacting device are in thermally conductive contact with the first heat sink element and the second heat sink element at the same time, 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 on which the second heat sink element
    4.19
    P14731 is attached in that the included contact elements of the contacting device are only in contact with one heat sink element or no heat sink element.
    Because the contact surfaces of the contact elements, which are described above
    Touching the temperature condition in order to transfer heat, for example, it can be flat or planar, it can 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 a thermal paste or other means which are suitable for improving the heat transfer between two objects can be used for this purpose.
    Furthermore, it can be advantageous if the contacting device comprises a first and a second contact element, which enable heat exchange between the heat sink elements if 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 , wherein the first contact element is in simultaneously thermally conductive contact with the first heat sink element and at the same time via the second contact element with the second heat sink element, 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, to which the second heat sink element is attached, in that the contact elements of the contacting device are only in contact with one heat sink element in each case, but not with each other.
    It can be provided that at least one contact element of the contacting device is slidably mounted in at least one recess in a heat sink element.
    It is expedient if exactly two contact elements of the contacting device are each slidably mounted in a recess in the heat sink elements.
    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.
    5.19
    P14731
    It is also advantageously provided if a first control element is assigned to the first contact element and a second control element is assigned to the second contact element.
    For example, the first control element can be designed 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 heat-conducting contact can be established with the second contact element.
    Furthermore, it is expedient if the second control element is designed such that when the temperature rises in the area outside the motor vehicle headlight to which the second heat sink element is attached, the second contact element is retracted by the second control element, so that a thermally conductive contact with the first contact element can be prevented.
    It is expedient if the control elements are made of a material that expands or contracts depending on the temperature.
    In one embodiment it is provided that the control elements are made of bimetal.
    When using bimetals as control elements, for example, the same bimetal could be used for all control elements. It should be noted that when heating or cooling by a certain ΔΤ the contact elements cover the same distance if the control elements - i.e. the bimetals - are positioned in the opposite direction. For a general functioning of the invention, it is advisable to define a “calibration position at a certain temperature, at which the contact surfaces of the contact elements touch at the same temperature.
    For this purpose, the position of the contact elements could be set such that they just touch at 70 ° C. in the interior of the headlight housing and at 70 ° C. in the area outside the motor vehicle headlight, to which the second heat sink element is attached, and produce a heat-conducting contact. It would also be conceivable for the contact elements to be positioned or calibrated such that they are located, for example, at 71 ° C. in the interior of the headlight housing and at 70 ° C. in the region outside the motor vehicle headlight, on which the second heat sink element
    6.19
    P14731 is attached, touch it straight and make a heat-conducting contact. The first calibration or positioning would thus be a heat-conducting contact between the contact elements at the same temperature, the second possible calibration position, in which there is just a heat-conducting contact between the contact elements, for a temperature difference at which the temperature in the interior of the headlight housing is just higher than the temperature in the area outside the motor vehicle headlight.
    The invention is explained in more detail below with reference to the drawings. In this shows
    1 shows a cross section of an exemplary motor vehicle headlight,
    2 shows 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
    Heat exchange,
    4 shows a side view of the heat sink device from FIG. 2 in the state in which no heat exchange takes place,
    5, 6, 7, 8, 9 and 10 show further possible embodiments of the
    Heat sink device.
    1, the motor vehicle headlight 100 according to the invention has a
    Headlight housing 102 and a cover plate 103 shown. Light sources 104, 105 are mounted within the motor vehicle headlight 100, each of which throws light onto an associated reflector, which is arranged below each light source. Directional information such as "above," below, "front or" rear refer to a motor vehicle headlight in the installed state.
    As can be 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 arranged in the motor vehicle headlight 100, and a second heat sink element 107 is outside the motor vehicle headlight 100 in the installed state of the motor vehicle headlight
    7.19
    P14731
    100 directed towards the engine compartment. A detailed view of the heat sink device 200 and the included components is shown in FIG. 2.
    As can be seen in FIG. 2, the heat sink device 200 comprises two heat sink elements 201, 202 which are separated from one another by an air gap 209, the two heat sink elements 201, 202 being positioned so as to be fixed to one another. The contacting device 210 is arranged between the heat sink elements 201, 202 and can make thermal contact between the two separate heat sink elements 201, 202. This
    Contacting device 210 comprises the heat-conducting contact elements 203, 204, as well as the associated temperature-dependent control elements 207, 208.
    A first contact element 203 is slidably mounted in a recess 205 in the first heat sink element 201 and a second contact element 204 is slidably mounted in a recess 206 in the second heat sink element 202. A first control element 207 is assigned to the first contact element 203 and a second control element 208 to the second contact element 204.
    The contact elements 203, 204 can be at least partially moved into or out of the recesses 205, 206 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 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 be thermally conductive contact with the second contact element 204 of the second
    To produce heat sink element 202 and to dissipate heat to the second heat sink element 202.
    4 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 lower than the temperature in the region of the second heat sink element 202 directed into the engine compartment, the second contact element 204 being dependent on the temperature , second control element 208 has been moved into 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
    8.19
    Interrupt P14731 so that any heat exchange between the heat sink elements 201, 202 is prevented.
    Further possible embodiments of the present invention are shown in the other figures, so several recesses 505, 506, 511, 512, 606, 612, 705, 706, 712 can be provided for the respective heat sink elements 501, 502, 601, 602, 701, 702, as shown in Figs. 5, 6 and 7.
    5, two recesses 505, 506, 511, 512 are provided for each heat sink element 501, 502, a first contact element 503 being assigned to the first heat sink element 501 and a second contact element 504 being assigned to the second heat sink element 502 and in this way in the existing recesses 505, 506 , 511, 512 are arranged so that they can in no way come into contact by at least partially pushing them out of the recesses 505, 512, each contact element 503, 504 being able to be at least partially moved into the recess 506, 511 opposite it, to establish a heat exchange with the heat sink element 501, 502 not assigned to it.
    Fig. 6 shows a similar arrangement as in Fig.5, the first and second
    Contact element 603, 604 are assigned and arranged to a common second heat sink element 602 in separate recesses 606, 612, and can each be moved at least partially out of these in order to produce a heat exchange with the first heat sink element 601, which is provided without recesses and associated contact elements is. A similar example with only a single contact element 803, 904 is shown in FIGS. 8 and 9, an additional recess 805 being provided in the first heat sink element 801 in FIG. 8, in contrast to FIG. 9.
    In contrast to the embodiment shown in FIG. 2, FIG. 7 shows an additional second recess 712 in the second heat sink element 702, the second contact element 704 being shaped like a horseshoe, so that it can be arranged in both recesses 706, 712 of the second heat sink element 702.
    10, the first contact element 1003 is preferably arranged to be movable on the upper or lower side of the first heat sink element 1001, the first heat sink element 1001 having no recesses, and the second contact element
    9.19
    P14731
    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 when it is at least partially pushed out of the recess 1006.
    It should also be noted that the respective control elements 207, 208 have been omitted in FIGS. 5, 6, 7, 8, 9 and 10, the contact elements of these embodiments being moved with control elements 207, 208 described above can.
    Furthermore, in the embodiments shown in FIGS. 5, 6, 8 and 9
    Temperature sensors may be provided, with a temperature sensor in the interior of the motor vehicle headlight 100 and a further temperature sensor in the region outside the motor vehicle headlight 100 on which the second heat sink element 502,
    602, 802, 902 is arranged, is attached. A controller compares the temperatures detected by the temperature sensors, compares them and shifts the respective contact element 503, 504, 603, 604, 803, 904 via the contact element 503, 504,
    Control elements 207, 208 assigned to 603, 604, 803, 904 and not shown in these figures with the aid of a drive, for example a linear motor or bellows and membrane drives, so that thermal contact can be established or prevented according to the temperature conditions described above.
    10/19
    P14731
    10LIST OF REFERENCE NUMBERS Motor vehicle headlamps 100 headlamp housing 102 cover plate 103 light sources 104.105 Heat sink device 200 first heat sink element 106, 201, 501, 601, 701, 801, 901, 001
    second heat sink element 107, 202, 502, 602, 702, 802, 902, 1002
    air gap 209 contacting 210 first contact element 108, 203, 503, 603, 703, 803, 904, 1003 second contact element 109, 204, 504, 604, 704, 1004 first control 207 second control 208 recess 205,206,505, 506,511, 512, 606, 612, 705, 706, 712,805,806, 906,1006
    11/19
    P14731
    权利要求:
    Claims (16)
    [1]
    claims
    1. Motor vehicle headlight (100) with a headlight housing (102) and a cover plate (103) and with at least one light source (104, 105) arranged in this motor vehicle headlight (100), 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), and wherein a heat sink device (200) is provided for cooling the at least one light source (104, 105), characterized in that the heat sink device (200) has two heat sink elements separated from one another by an air gap (209) (106,107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 001, 1002), which are arranged such that a first heat sink element (106, 201, 501, 601 , 701, 801, 901, 001) 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 motor vehicle headlight (100) The heat sink device (200) is provided with a contacting device (210) which is designed such that 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 motor vehicle headlight (100) is higher than the temperature in the region outside the motor vehicle headlight (100) where the second heat sink element (107 , 202, 502, 602, 702, 802, 902, 1002) and that there is 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 if the temperature in the interior of the motor vehicle headlight (100) is lower than the temperature in the region outside the motor vehicle headlight (100) at which the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) t is.
    [2]
    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) are arranged in this way that the first heat sink element (106, 201, 501, 601, 701, 801, 901, 001) is in heat transfer contact with the at least one in
    Motor vehicle headlight (100) arranged light source (104, 105) is placed.
    12/19
    P14731
    [3]
    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)) is arranged outside the motor vehicle headlight on the side of the headlight housing facing away from the cover plate, preferably the second heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) in the installed state of the
    Motor vehicle headlight (100) is positioned in an engine compartment.
    [4]
    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 arranged fixedly in relation to one another are.
    [5]
    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), which is movable with respect to the heat sink elements (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001).
    [6]
    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 several contact elements (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004), which comprises heat exchange between the heat sink elements (106,107, 201, 202,501, 502, 601, 602, 701, 702, 801,802, 901, 902, 1001, 1002) if 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) on 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-conducting contact with the first heat sink element (106, 201, 501, 601, 701, 801, 901, 001) and the second heat sink element (107, 202, 502, 602, 702, 802.902, 1002) and that no heat a Exchange between the heat sink elements (106,107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001, 1002) is possible if the temperature inside the motor vehicle headlight (100) is lower than the temperature in the area outside the motor vehicle headlight (100) at which the second heat sink element (107, 202, 502,
    13/19
    P14731
    602, 702, 802, 902, 1002) is attached by the included 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 one heat sink element (106,107, 201,202, 501, 502, 601, 602,
    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).
    [7]
    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 enable 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 inside the
    Motor vehicle headlight (100) is higher than the temperature in the area outside the motor vehicle headlight (100) where the second heat sink element (107, 202, 502, 602,
    702, 802, 902, 1002), the first contact element (108, 203, 503, 603, 703, 803, 904, 003) being in simultaneous heat-conducting contact with the first heat sink 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) and that there is no heat exchange between the
    Heatsink elements (106,107, 201, 202,501, 502, 601, 602, 701, 702, 801,802, 901, 902, 1001, 1002) is possible if the temperature in the interior of the motor vehicle headlight (100) is lower than the temperature in the area outside of 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) are only in contact with one heat sink element (106, 107, 201, 202, 501, 502, 601, 602, 701, 702, 801, 802, 901, 902, 1001) but not with each other.
    [8]
    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.
    14/19
    P14731
    [9]
    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) each in 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 slidably mounted.
    [10]
    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) can be moved by at least one control element (207, 208) assigned to the respective contact element (108, 109, 203, 204, 503, 504, 603, 604, 703, 704, 803, 904, 1003, 1004).
    [11]
    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 assigned a first control element (207) and the second contact element (109 , 204, 504, 604, 704, 1004) a second control element (208) is assigned.
    [12]
    12. Motor vehicle headlight (100) according to claim 11, characterized in that the first control element (207) is designed such that when the temperature in the interior of the motor vehicle headlight (100) increases, the first contact element (108, 203, 503, 603, 703, 803 , 904, 1003) is at least partially pushed out of the associated recess (205, 505, 506, 606, 705, 805, 806, 906) by the first control element (207), so that a heat-conducting 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]
    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 heat sink element (107, 202, 502, 602, 702, 802, 902, 1002) is attached, the second contact element (109, 204, 504, 604, 704, 1004) through the second control element (208) further in
    15/19
    P14731 the assigned recess (206, 511, 512, 612, 706, 712, 1006) is retracted so that a heat-conducting 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, 001) can be prevented.
    [14]
    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 expands or contracts depending on the temperature.
    [15]
    15. Motor vehicle headlight (100) according to claim 10 to 14, characterized in that the control elements (207, 208) are made of bimetal.
    [16]
    16/19
    1.3
    209
    类似技术:
    公开号 | 公开日 | 专利标题
    EP1749171B1|2011-11-30|Headlight with heat exchanger for cooling the lighting means
    DE102006001711B4|2008-10-30|Lighting device for a motor vehicle
    DE102008013604B4|2019-04-18|Cooling device for a control device of a lighting device of a motor vehicle
    DE102015121819A1|2016-06-16|headlights
    DE102007036486A1|2009-02-05|Headlamp system with controlled and / or regulated conveyor
    DE102007057056A1|2009-05-28|Headlight for motor vehicle, has thermoelectric radiator arranged on housing, where heat exchange takes place between internal space and outer side of housing through thermoelectric radiator
    DE112014002932T5|2016-03-10|Ventilation with internal diversion
    EP2487411B1|2013-08-28|Heat sink for LED lighting device
    DE102011006440A1|2011-10-06|Headlamp unit for a motor vehicle
    EP3404314A1|2018-11-21|Light module of a motor vehicle headlight and headlight with such a light module
    DE112009001555T5|2011-05-12|Rail lighting system with a heat sink for solid rail lighting
    EP3542098B1|2021-12-15|Heat sink having variable thermal resistance
    EP2834552B1|2019-06-19|Illumination apparatus for a motor vehicle
    WO2010108906A1|2010-09-30|Led luminaire
    DE102012223465A1|2014-06-18|Cooking appliance e.g. microwave apparatus, has light source arranged below opening and optical element that is provided for deflecting light beam of light source into internal chamber of muffle
    DE102016113966B4|2019-03-14|Lighting device, in particular a headlight for motor vehicles
    EP3246619B1|2020-07-29|Lighting device for a motor vehicle, motor vehicle and method for cooling a lighting device for a motor vehicle
    DE202009005266U1|2009-12-03|LED lamp with high heat dissipation and safety
    EP2093067B1|2012-10-24|Printer with an exposure head
    EP3115679A1|2017-01-11|Lighting device and vehicle with the lighting device
    DE102013101692A1|2014-08-21|Underwater lights and security system
    DE202020104485U1|2021-11-05|Luminaire with light source of variable light emission direction and heat coupling
    DE102019123063A1|2021-03-04|Composite of a motor vehicle headlight and a coolant circuit of a motor vehicle
    EP2581657B1|2015-06-10|Cooling unit assembly for an LED lamp and LED lamp
    DE102019005441A1|2020-03-05|Headlights for a motor vehicle
    同族专利:
    公开号 | 公开日
    EP3542098B1|2021-12-15|
    JP6893982B2|2021-06-23|
    CN109964079B|2022-01-11|
    AT518977B1|2018-03-15|
    KR20190080913A|2019-07-08|
    US20200072435A1|2020-03-05|
    WO2018090067A1|2018-05-24|
    US10605429B2|2020-03-31|
    KR102200885B1|2021-01-12|
    EP3542098A1|2019-09-25|
    CN109964079A|2019-07-02|
    JP2019536229A|2019-12-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5131456A|1991-07-01|1992-07-21|Ibm Corporation|Bimetallic insert fin for high conduction cooling structure|
    US20080081232A1|2006-09-29|2008-04-03|Kabushiki Kaisha Toshiba|Chemical reacting system and fuel cell system|
    JP2012174354A|2011-02-17|2012-09-10|Yamaha Motor Co Ltd|Headlight and saddle riding type vehicle equipped with the same|
    JPS61280164A|1985-06-05|1986-12-10|Hitachi Ltd|Illuminating device for character and picture inputting device|
    US7249868B2|2005-07-07|2007-07-31|Visteon Global Technologies, Inc.|Lamp housing with interior cooling by a thermoelectric device|
    JP2007172932A|2005-12-20|2007-07-05|Toyota Motor Corp|Vehicular headlight|
    DE102006001711B4|2006-01-13|2008-10-30|Audi Ag|Lighting device for a motor vehicle|
    JP4515391B2|2006-01-17|2010-07-28|古河電気工業株式会社|Vehicle headlamp|
    JP4922087B2|2007-07-12|2012-04-25|スタンレー電気株式会社|Vehicle headlamp|
    US20090059594A1|2007-08-31|2009-03-05|Ming-Feng Lin|Heat dissipating apparatus for automotive LED lamp|
    JP2009087733A|2007-09-28|2009-04-23|Koito Mfg Co Ltd|Vehicle lighting device|
    DE102007055165A1|2007-11-19|2009-05-20|Osram Gesellschaft mit beschränkter Haftung|LED headlights|
    DE102007057056A1|2007-11-27|2009-05-28|Hella Kgaa Hueck & Co.|Headlight for motor vehicle, has thermoelectric radiator arranged on housing, where heat exchange takes place between internal space and outer side of housing through thermoelectric radiator|
    JP2012028135A|2010-07-22|2012-02-09|Stanley Electric Co Ltd|Lighting fixture for vehicle|
    EP2572992B1|2011-09-26|2014-07-30|Goodrich Lighting Systems GmbH|Aircraft light|
    GB2497724A|2011-12-08|2013-06-26|Nissan Motor Mfg Uk Ltd|Lighting unit mounting for a vehicle|
    US9285090B2|2014-07-10|2016-03-15|Chen-Wei Hsu|Vehicle headlight assembly|
    DE102014226647A1|2014-12-19|2016-06-23|Osram Gmbh|LED carrier with an LED and luminaire with such an LED carrier|
    US10429026B2|2017-06-16|2019-10-01|GM Global Technology Operations LLC|Lamp assembly with anisotropic heat spreader and vehicle having the same|
    JP6504219B2|2017-09-20|2019-04-24|マツダ株式会社|Vehicle front structure|
    JP2019164916A|2018-03-19|2019-09-26|株式会社小糸製作所|Vehicle lamp fitting|US20210341121A1|2020-04-30|2021-11-04|Paccar Inc|Headlamp heater|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA51043/2016A|AT518977B1|2016-11-17|2016-11-17|Heat sink with variable thermal resistance|ATA51043/2016A| AT518977B1|2016-11-17|2016-11-17|Heat sink with variable thermal resistance|
    JP2019526290A| JP6893982B2|2016-11-17|2017-10-25|Cooler with variable thermal resistance|
    US16/461,319| US10605429B2|2016-11-17|2017-10-25|Heat sink having variable thermal resistance|
    KR1020197015600A| KR102200885B1|2016-11-17|2017-10-25|Heat sink with variable thermal resistance|
    CN201780071188.0A| CN109964079B|2016-11-17|2017-10-25|Cooling body with variable thermal resistance|
    EP17794213.3A| EP3542098B1|2016-11-17|2017-10-25|Heat sink having variable thermal resistance|
    PCT/AT2017/060287| WO2018090067A1|2016-11-17|2017-10-25|Heat sink having variable thermal resistance|
    [返回顶部]