• 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:
    A method for producing a lighting unit of a vehicle headlight comprises the following steps: providing a printed circuit board (1) with a plurality of groups (A, B, C) of contact pads (2) for contacting LEDs (3), fitting LEDs (3) on contact pads (2) of the groups (A, B, C), wherein the contact pads (2) to be equipped are selected in accordance with a desired light function of the respective group (A, B, C) and provide fixing means (A ", B" , C ") for reflectors (A ', B', C ') on the board (1), wherein the fixing means (A", B ", C") each for a light to the function of the respective group (A, B , C) matched reflector (A ', B', C ') are specific.
    公开号:AT513910A1
    申请号:T98/2013
    申请日:2013-02-07
    公开日:2014-08-15
    发明作者:Friedrich Bauer；Martin Biesenberger
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    Procedure with the HEKsi ^ lßttiiN'kR light unit
    The invention relates to a method for producing a lighting unit of a vehicle headlight and a light unit produced by this method.
    Modern vehicle headlights not only offer various elaborate and powerful lighting functions, but are increasingly integrated into the design of the respective vehicles and with regard to the air resistance of the vehicle and also with regard to safety-relevant aspects, such as pedestrian protection optimized. With these desirable features and functions of modern vehicle headlights, however, difficulties in the standardization of the corresponding components go along, so that it is increasingly difficult to achieve larger numbers of components and thus economies of scale in the cost. This is particularly disadvantageous for vehicles in medium to low price segments.
    It is therefore an object of the present invention to provide a method for producing a lighting unit of a vehicle headlamp, which allows the use of standardized components greatest possible flexibility in terms of realizable with these components lighting functions, the assembly of lighting units and the corresponding components should be simple and error-free feasible ,
    To achieve this object, a method of the type mentioned according to the present invention is characterized by the following steps:
    Providing a circuit board having a plurality of groups of contact pads for contacting LEDs,
    Equipping of LEDs on contact pads of the groups, wherein the contact pads to be equipped are selected according to a desired light function of the respective group, and
    Providing fixing means for reflectors on the board, wherein the fixing means are each specific for a reflector adapted to the light function of the respective group.
    The present invention thus makes it possible to produce a large number of boards independently of the light functions of future headlamps to be achieved with the invention, these boards having a large number of contact pads in similar groups. Depending on which of these standardized circuit boards is to be made available for the headlamps of a vehicle, selected contact pads are fitted with LEDs, normally one group of contact pads each having a light function, e.g. Daytime running lights, low beam, high beam, is assigned. In order to ensure according to the above formulated object of the invention not only the increased flexibility when using a standardized board, it is provided as a further step of the method that provided on the standardized board fixing means for the adapted to the respective light functions of the individual groups reflectors The fixing means are specific because of their geometry for the reflectors adapted to the light function of the respective group. This means that the reflectors used in the method according to the invention, in accordance with their adaptation to the respective lighting functions, have specific counterparts to the fixing means in order to ensure a fault-free assembly of the lighting unit according to the present invention.
    With the present invention, it is therefore possible to produce standardized boards with a plurality of contact pads for different lighting functions, wherein in the assembly only those contact pads in the individual groups are occupied by LEDs, which are required for the respective light function and the provision of fixing means, specific for the light function reflectors specific, ie encoding, it is done so that even with a cost-effective mass production of vehicle headlights erroneous pairings of LEDs and reflector can be excluded. Furthermore, the invention allows to realize with similar boards both left and right headlights. Left and right headlights of a vehicle are usually not simply mirrored, as most of the parts are not mirror images available and therefore a corresponding configuration of the photo is required.
    According to a preferred embodiment of the present invention, the fixing means are formed as holes in the board, which are suitable to cooperate with corresponding fixing pins on the reflectors. This represents a particularly simple supplement to the present invention, since it is possible to carry out simple bores in a printed circuit board with little effort and at the same time to ensure a clear coding of the fixing point 2 * d £ h * Fi & pins on the reflectors allows.
    It is known to those skilled in the art that when mounting LEDs on contact pads certain manufacturing tolerances occur with respect to the exact position, which must be compensated precisely by appropriate alignment of the respective reflectors to the light sources or LEDs. The method according to the invention is therefore further developed according to a preferred embodiment in such a way that the position of the fixing means relative to the respective group is determined on the basis of the positions of the LEDs after loading. It is thus determined only after the placement of the LEDs on the contact pads whose exact position and the fixing means for the reflectors are placed on the basis of these positions.
    According to a preferred embodiment of the present invention, the board is fixed on a support with a heat sink and control electronics for the LEDs. The module thus obtained can be delivered in a space-saving manner to the respective production companies, whereupon the final assembly of the reflectors and subsequently the vehicle headlights can take place.
    The lighting unit according to the invention is produced by the method just described and is characterized by particularly low production costs.
    A particularly flexible and therefore preferred lighting unit is obtained in connection with the present invention, when the contact pads of the groups are individually controllable. In this way, in addition to the flexibility in terms of placement, the light image can be influenced by targeted switching on and off of individual LEDs, without the board itself must be changed accordingly.
    The invention will be explained in more detail with reference to an embodiment schematically illustrated in the drawings. In these show:
    1 is a perspective view of reaching in the inventive method used circuit board with carrier and reflectors, the reflectors are not placed on the board, and
    Fig. 2 is a view of FIG. 1 with attached reflectors. 4.10
    In Fig. 1, 1 denotes a board * cfie * has three mutually identical groups A, B and C of contact pads 2. As can be clearly seen in FIG. 1, the placement of the contact pads 2 of the individual groups A, B and C can be carried out differently with LEDs 3, whereby in group B, for example, a daylight function, in group A a low beam function and in group C a high beam function are realized can be. Corresponding to the different equipping of the LEDs in the individual groups A, B and C and the associated different light functions, reflectors A ', B' and C 'adapted to these special lighting functions must also be installed. In order to exclude confusion here, as described above, designation means A ", B " and C " for reflectors A ', B' and C 'provided on the board 1, which correspond in geometry or in their arrangement of the geometry or arrangement of the fixing pins 4 of the reflectors A', B 'and C', so that, for example, the reflector C 'only in the fixing means C ", which are formed in the present case as bores can be used. As a result, a false pairing between the type of placement of the LEDs 3 in group C on the board 1 and the reflector is reliably avoided. 5 denotes a carrier on which the circuit board 1 is fixed. The carrier 5 has a heat sink 8 in the form of a series of cooling fins 6 and an electronic control unit 7, not shown, for the LEDs 3. It can now be seen in Figure 2 that the reflectors A ', B' and C 'are included in the designation means A ", B " and C " can be used and thus bundle the light emitted by the LEDs 3 light and direct. In this way, a light unit of a vehicle headlight on a standardized board 1 produce, with increased flexibility is given in terms of lighting functions and at the same time errors in the cultivation of necessary for the respective lighting functions reflectors can be avoided. 5.10
    List of Reference Signs: (not part of the application) 1 board 2 contact pad 3 LED 4 fixing pin 5 carrier 6 cooling fin 7 control electronics 8 heat sink A, B, C group A ', B', C reflector A ", B", C " Fixing agent 6/10
    权利要求:
    Claims (6)
    [1]
    1. A method for producing a lighting unit of a vehicle headlamp comprising the following steps: providing a circuit board (1) having a plurality of groups (A, B, C) of contact pads (2) for contacting LEDs (3), loading of LEDs (3) on contact pads (2) of the groups (A, B, C), wherein the contact pads (2) to be populated are selected according to a desired light function of the respective group (A, B, C) and provide designation means (A " B ", C ") for reflectors (A ', B', C ') on the board (1), wherein the designation means (A ", B ", C ") each for one to the light function of the respective group (A, B, C) matched reflector (A ', B', C ') are specific.
    [2]
    2. Method according to claim 1, characterized in that the fixing means (A ", B", C ") are formed as holes in the board (1) which are suitable with corresponding fixing pins (4) on the reflectors (A '). To cooperate, B ', C').
    [3]
    A method according to claim 1 or 2, characterized in that the position of the fixing means (A ", B", C ") relative to the respective group (A, B, C) is determined from the positions of the LEDs (3) after loading becomes.
    [4]
    4. The method according to any one of claims 1 to 3, characterized in that the circuit board (1) on a support (5) with a heat sink (8) and an electronic control unit (7) for the LEDs (3) is set.
    [5]
    5. lighting unit forth provided by a method according to one of claims 1 to 4.
    [6]
    6. Lighting unit according to claim 5, characterized in that the contact pads (2) of the groups (A, B, C) are individually controllable.
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    同族专利:
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    US20150369435A1|2015-12-24|
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    引用文献:
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    KR102343401B1|2016-10-19|2021-12-27|현대모비스 주식회사|headlamp having matrix static bending light optical system|
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    法律状态:
    2016-11-15| HC| Change of the firm name or firm address|Owner name: ZKW GROUP GMBH, AT Effective date: 20161014 |
    2020-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20200207 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA98/2013A|AT513910B1|2013-02-07|2013-02-07|Method for producing a lighting unit and lighting unit|ATA98/2013A| AT513910B1|2013-02-07|2013-02-07|Method for producing a lighting unit and lighting unit|
    PCT/AT2014/050001| WO2014121312A1|2013-02-07|2014-01-07|Method for producing a headlight assembly|
    US14/765,263| US9927082B2|2013-02-07|2014-01-07|Method for producing a headlight assembly|
    EP14706256.6A| EP2954761B1|2013-02-07|2014-01-07|Method for producing a headlight assembly|
    CN201480007930.8A| CN104956775B|2013-02-07|2014-01-07|Method for manufacturing lamp unit|
    JP2015556336A| JP6182219B2|2013-02-07|2014-01-07|Manufacturing method of lighting unit|
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