• 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:
    In a lighting device for a vehicle, an optical waveguide arrangement (10) for guiding the light emitted by a light source comprises a head section (12) with coupling-out elements (18) for decoupling at least part of the coupled-in light, and a feed section (11) having a coupling-in zone (11). 15) for the coupling of light from a light source, and is fed through the thus coupled light to the head portion (12). The coupling-in region (15) has a first fastening device (13) with at least one element projecting transversely to the longitudinal axis of the coupling-in region (15), e.g. a pin, by means of which the Einkopplungsbereich (15) can be inserted and locked in a first attachment point in the lighting device. The head portion (12) has a second attachment means (14) for securing the head portion (12) in the illumination device.
    公开号:AT516170A4
    申请号:T50650/2014
    申请日:2014-09-16
    公开日:2016-03-15
    发明作者:Thomas Edletzberger；Patrick Windgruber；Stefan Etlinger
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    Lighting device with therein light guide assembly
    The invention relates to a lighting device for a vehicle, in particular for a motor vehicle, comprising at least one light source and at least one optical fiber arrangement assigned to the at least one light source for guiding the light emitted by the at least one light source and coupled into the optical waveguide arrangement a head section (in particular a so-called light ring) with one or (preferably) a plurality of coupling-out elements for decoupling at least a part of the coupled-in light, and a feed section comprising a coupling-in area which is suitable for coupling in is arranged by light from a light source along a coupling-in direction, and can be fed through the thus coupled light to the head portion.
    A lighting device of this kind is, for example, a headlight, such as that of a motor vehicle. Lighting devices of this type are known, for example, from DE 100 40302 B4, which describes a headlight in which light from a light source is guided over a light guide which has a light-ring-like end section and is radiated from the latter for illumination purposes; the light guide is held by sleeves in a holder. The disadvantage is the use of their own components such as the sleeves.
    The attachment of the light guide is in conventional arrangements by Verschrau¬bungen or clamping using additional components. This leads to a peculiar effort in the attachment of the light guide and centering in the desired position. In addition, this additional cover parts are necessary in order to achieve the required enclosure of the light guide, which hides this to the outside.
    It is therefore an object of the invention to provide a simplified attachment of a light guide assembly in a lighting device, such as in particular a power train headlamp, the determination of the position of the light guide both in terms of Einkopplungsstelle of light and the coupling elements for radiating by simple means and yet reliable allows.
    This object is achieved by a light guide arrangement or a lighting device of the type mentioned in the introduction, in which according to the invention the coupling region comprises a first fastening device which comprises at least one locking element projecting transversely to a longitudinal axis of the coupling-in region, and the head section comprises a second fastening device for fastening the head section to a having second Fest¬ fixing point of the support frame. The coupling region is thereby insertable into a first attachment point of the support frame (for example into a corresponding opening provided in the first attachment point) and lockable therein by means of the first attachment device.
    This solution provides a reliable locking and centering system for the light guide assembly on the support frame of the lighting device (i.e., in the headlamp), which ensures accurate positioning with respect to the support frame and thus the light source. At the same time, the insertion of the coupling region into the first fastening point in the support frame leads to a partitioning off of the light feed to the outside. In addition, a simpler and faster assembly of the optical waveguide components is achieved, as well as a saving of additional fastening components such as screws and / or clamps. Preferably, therefore, the setting of the coupling-in area in the first fastening point takes place without the use of additional components.
    A facilitated, yet reliable and secure assembly further results from a further development, according to which the light guide assembly in a state in which the Einkopp- lungsbereich is inserted in the first attachment point, but the head portion at the second attachment point is not detected, in the first attachment point about or transverse to the longitudinal axis is movable, namely about these ver¬ swiveled or transversely displaceable.
    A reduction in the number of components and the resulting simplification of the assembly can also be achieved by virtue of the fact that the locking element (s) is (are) formed integrally with the coupling-in region.
    In an advantageous embodiment, the locking element may be designed such that it is realized by a protruding nose on the coupling region, which forms a stop surface on a side facing away from a light coupling surface of the coupling region. In particular, this abutment surface may cooperate with a corresponding surface of the attachment site to frustrate movement in one direction out of the attachment site when inserted.
    In an advantageous embodiment, the coupling region can have two locking elements, which are preferably offset along the longitudinal axis. The two locking elements can preferably be arranged in different angular positions. The two locking elements have abutment surfaces, which are preferably facing each other. The abutment surfaces correspond with mating surfaces on the housing, which are formed in be¬vorzugter execution as the top and bottom of a common housing rib (strip); In one variant, depending on a counter surface could also lie on different bars. The arrangement of the locking elements in different angular positions has the advantage that, after insertion of the first locking element, the second abuts against the upper opposing surface of the housing strip, thus mechanically fixing the plane of rotation of the locking movement.
    Alternatively, the stop surfaces may be remote from each other. You can be in die¬ser execution of different or the same locking element. The associated counter surfaces are in this case preferably on different housing ribs (or strips). Both versions prevent movement from the attachment point both in the insertion direction and in the opposite direction.
    A simplified mounting of the optical waveguide arrangement is also facilitated, inter alia, by an embodiment in which the coupling-in region is designed as a substantially circular-cylindrical end of a light guide on which the light is introduced through the end face of the circular-cylindrical end as light-coupling surface.
    This allows the mounting of a circular optical fiber by insertion and pivoting about the insertion direction and allows a positive connection of optical fiber and housing. Because the housing is made of optically nontransparent material, thus insbe¬sondere the attachment point is opaque, elements of the headlight wieReflektoren or mirrored panels are sealed off from the coupling region against stray light.
    This relates in particular to light which, due to the larger exit angle, enters the coupling surface outside the total reflection angle of the light guide and out of the light source and is not passed on in the light guide.
    In a likewise expedient embodiment, the second fastening device can comprise at least one latching element, namely a latching latch or a latching stop, which interacts with an associated counter-element of the second fastening point, namely a latching stop or a latching latch.
    The invention together with further advantages and further developments will be explained in more detail below with reference to a non-restrictive exemplary embodiment, which is illustrated in the attached drawings. The drawings show
    1 shows a light guide according to the embodiment of the invention in an oblique view.
    FIG. 2 shows the coupling region of the light guide of FIG. 1 in a side view; FIG.
    3 shows the coupling region in another side view;
    4 shows the coupling region in the mounted state of the optical waveguide in a carrier frame of a headlamp;
    5 is a bottom view of the attachment point of the light guide in the support frame.
    6 is a side view of the attachment point of the light guide in the support frame.
    Figure 7 shows the light guide of Figure 1 in the mounted state, wherein this is inserted together with a second optical fiber in the support frame.
    8 shows a detailed view of the fastening device of the light ring in the assembled state in the corresponding fastening point;
    Fig. 9 illustrates the insertion of the coupling region of the light guide into the associated attachment site;
    Fig. 10 illustrates the subsequent movement of the light guide to its mounting position;
    11 shows the positioning of the coupling regions of both light guides in the assembly position;
    Fig. 12 shows an attachment point according to another embodiment, wherein the light guide can be inserted by sliding into a slot-like recess as a sliding guide, in a perspective view;
    Fig. 13 shows a variant with an angled link guide; and
    FIG. 14 shows the coupling region of a supply line of a light guide, which can be inserted into a fastening point of FIG. 12 or 13.
    The embodiment of the invention described below shows the lockable arrangement of two light guides in a headlamp for a motor vehicle (such as a car). It should be noted that the invention is not limited to the embodiment and, in addition, variations, additions and additions are possible in the embodiment which are obvious to the person skilled in the art and fall within the scope of the claims.
    Fig. 1 shows a light guide assembly 10 of the embodiment in a perspective view. The optical waveguide arrangement 10 will hereinafter be referred to simply as a light guide. The optical waveguide 10, which consists of a suitable optical waveguide material and is essentially rigid in a known manner, is made into a feed section 11 and a head section 12. The supply line section 11, in short also "supply line", is preferably oblong-shaped, preferably with a cross section which is substantially constant in the longitudinal direction; i.e. the feeder has a rod-like shape, which in general may have straight and curved sections, as in the example shown a coupling-in area 15 in the form of a short straight section, followed by two bent knee sections, between which a straight section lies. For example, the cross section of the supply line - apart from attached components such as the noses to be discussed later - rounded, preferably circular. The head portion 12 is, for example, a light ring which extends around the edge of a window-like headlamp opening in the assembled state (FIG. 7), and has along its course one or preferably a plurality of outcoupling elements 18 through which the light coupled into the lightguide can exit to the front (the emission direction dist indicated in Fig. 1 by arrows). The shape of the light ring 12 with respect to the Auspplungselemente 18 is not the subject of the invention and will therefore not be executed here nä¬her, instead, this reference is made to the prior art. According to the invention, both the feed line 11 and the head section (light ring) 12 each contain
    Fastening means 13, 14, by means of which the light guide 10 in a headlight 20 (Fig. 7) can be fixed and locked there in a desired mounting position.
    As can be seen in FIG. 7, the optical waveguide arrangement 10 of the exemplary embodiment shown represents a component of a double headlamp 20 which has two openings 21, 21 ', which can have different or similar functions; for example, one opening 21 is provided for low beam, the other opening 21 'for high beam. For each Licht¬ window a separate light guide assembly 10,10 'is provided with each specifically designed Leucht¬ ring 12,12'. The second light guide assembly 10 'thus preferably has a shape corresponding to the first light guide assembly 10 but adapted to the second aperture 21'. The light guides 10, 10 'and other, not shown components of the headlamp are mounted in a housing or support frame 22 of the headlamp. The Trä¬gerrahmen 22 is because of its task to prevent the visibility of internal parts of the headlamp outward, as "aperture". designated. Fig. 7 is a perspective view of the carrier frame from the front, i. the light emission takes place essentially towards the viewer. Preferably, both light guides 10, 10 'are inserted into the support frame 22 of the headlight in the same work operation according to the invention. In FIG. 7 and comparable figures, apart from the light guides and components belonging to them, only the support frame 22 is shown by the headlamp for the sake of clarity, and the covers of the leads 11, 11 'of the light guides are also removed for the purposes of the disclosure. In addition, in Fig. 7, the light guides 10,10 'associated light sources 16 are shown only symbolically. For example, the light source may be an LED light source.
    Referring to FIGS. 2 and 3, at its end remote from the head section 12, the feed line 11 includes the previously mentioned coupling-in area 15 for coupling light from a light source 16 (FIG. 7) along a coupling direction e through a coupling-in area 17 provided for this purpose , For example, the Einkopplungsbereich is formed as an end portion of the feed line 11 and has a cylindrical body with a circular cross-section and longitudinal axis c, wherein the coupling surface 17 is formed by the end face of the cylindrical body. As a rule, the coupling-in direction e is parallel to the longitudinal axis c.
    The coupling-in region 15 according to the invention also comprises one or more elements which realize a first fastening device 13, by means of which the coupling-in region 15 can be fixed in a corresponding fastening point 23 (FIG. 7) in the support frame 22. In the example shown, the fastening device 13 is formed from two pins or lugs 131, 132; Of course, it can be designed differently in other embodiments, for example, with only one pin. The lugs 131, 132 are arranged offset relative to one another, preferably at different heights along the longitudinal axis c of the coupling-in region 15 and / or in different angular positions about the axis c.
    The locking elements, here e.g. are formed as lugs, are transversely to a longitudinal axis of the light guide (here longitudinal axis c) projecting body, of the Begrenzungsflä¬chen at least one as - preferably designed as a flat surface-contact surface 133,134 as described below is used. Optical fibers and molded elements are manufactured by injection molding. For ease of installation burrs and sharp edges must be forged. For this purpose, the boundary surfaces pass over abutment slopes 135, 136 into the cylindrical body of the coupling-in area.
    Fig. 4 shows the region of the support frame 22, in which the attachment point 23 is located, in a sectional view corresponding to a section along the line 4-4 in Fig. 5; since the cut surface runs between the two coupling-in regions of the light guides used, only one of the two light guides (more precisely its feed line 11) is visible in FIG. The light guide is in the assembled state is set (end position). The lower nose 131 abuts against a stop surface 233 of the attachment point 23; More specifically, the nose 131 on the side facing away from the light coupling surface 17 has an upper surface 133 (see FIGS. 2 and 3) which comes into contact with the abutment surface 233. The nose 131 thus prevents unwanted movement of the coupling region out of the attachment site 23 (i.e., upward in Fig. 4), which could degrade or even prevent the coupling of the light into the light guide. The upper nose 132, on the other hand, has a lower surface 134 which is an abutment in the other direction to prevent excessive displacement of the light-emitting surface 17 toward the light source. The surface 134 is for this purpose on a mating surface 232 of the attachment point 23, which is formed for example from the top of the frame strip 25, through which the coupling-in area is inserted.
    5 shows the fastening point 23 in a bottom view, wherein the ends of both inserted optical fibers and thus the light coupling surfaces 17 are visible. FIG. 6 shows the fastening point 23 in a lateral sectional view corresponding to the section line 6-6 of FIG. 5. By way of example of the first fastening device 13 of the first light guide 10, the lower nose 131 can be seen and a recess 231 which is inclined by a predetermined angle .alpha opposite to the end position of the nose 131 is arranged. The recess 231 serves to allow insertion of the coupling-in region 15, which is rotated by the angle α about the longitudinal axis c during the insertion of the light guide. In Fig. 6, the design of the stop surface 233 can be seen; this is, in order to facilitate the fitting of the nose 131 in the final rotational movement on the stop surface 233, provided with a ramp 234.
    Referring again to FIGS. 1 and 7, a second attachment means 14 is provided on the head portion 12 of the light guide 10, which cooperates with an attachment point 24 of the support frame, which is provided at the edge of the associated opening 21. The attachment achieved thereby advantageously serves for the positionally correct attachment of the blanking ring 12 on the border of the opening 21.
    8 shows the second fastening device 14 in the inserted state in the associated fastening point 24 in an oblique view from above. The fastening device 14 comprises a latching element 141, in this case a latching stop, for example in the form of a frame, which cooperates with a corresponding counter-element 241, which is here designed as a resilient pawl 241, which is attached to e.g. upwardly oriented surface of the attachment point 24 is formed. Of course, in a variant, the two elements that provide for a snap, also be designed differently; In particular, the pawl and the latching stop for the latch could be interchanged. In addition, means for centering the luminous ring 12 may be provided in a favorable manner. For example, two wedge-like depressions 242 are provided in the attachment point 14 on both sides of the pawl 241, into which corresponding centering pins 142 of the luminous ring 12 are provided and centering of the luminous ring 12 in the desired position on the carrier frame 22 around the opening 21. Again, in a variant, the Zent¬riereinrichtungen be designed differently; e.g. the centering recesses could be formed on the light ring and cooperate with centering pins on the attachment point.
    The second light guide 10 'can be fastened in a corresponding manner by its own fastening device 14' to an attachment point 24 'of the support frame 22.
    9 to 11 illustrate the assembly process of a light guide assembly 10 according to the invention.
    As illustrated in FIG. 9, the optical fiber 10 is inserted into the mounting location 24 in a position ("insertion position") rotated from its end position by an angle α in a movement along the longitudinal axis c, which preferably coincides with the light coupling direction e. Here, the end of the light guide, which forms the Einkopplungsbereich 15, inserted into the opening in the attachment point 24, so that the nose 131 can be guided by the Ausneh¬mung 231 of the attachment point 24 until the second nose 132 abuts as a stop on the counter surface 232 , The optical fiber 10 in the state thus achieved (i.e., the coupling-in region 15 is inserted in the first fastening point 23) in the first fastening point 23 is movable about the longitudinal axis c of the coupling-in region, or more precisely can be pivoted.
    Then, as shown in Fig. 10, by a pivoting movement of the head portion 12 moves to the opening 21, so that the second fastening means 14 comes to rest in the second Befes¬ tigungsstelle 24 and engages there. In this way, the light guide 10 is detected in its final position. The latching connection of the fastening device 14 to the fastening point 24 is effected as described above with reference to FIG. 8, preferably by latching the pawl 241 into the latching stop 141.
    FIG. 11 shows a detail view of the first attachment point 23 with insertion region 15 inserted therein for the end position thus achieved. The strip which forms the counter surface 232 for the upper nose 132 is clamped between the upper nose 132 and the lower nose 131 (FIG. Fig. 6). An extraction of the coupling-in area 15 is not possible because the lower nose 131 is adjusted relative to the recess 231 by the angle α. In this way, according to the principle of a bayonet closure, a secure locking of the entire light guide in the position desired as the end position results.
    The combination of two fastening devices, on the one hand in the field of Lichtein¬ coupling to the supply line 11 and on the other hand at a suitable location on the light ring 12, the invention provides improved stability of the assembly of the light guide assembly 10 and the support frame 22 of the headlamp. The fastening device 13 on the Ein¬kopplungsbereich 15 results in a secure positioning, for example due to a clamp by the two lugs 131,132, as well as a compound that is also insensitive to Vibra¬tionen. The latching results in an exact positioning of the blanking ring 12 on the support frame 22, without having to accept any impairment of the optical positioning of the light coupling in the coupling-in area 15.
    Of course, the invention is not limited to the exemplary embodiments shown. Rather, various modifications and additions may be made without departing from the scope of the appended claims. By way of example, the coupling-in area can contain only one locking element, which has stop surfaces facing one another, while two counter surfaces are provided in the first attachment point, which are each formed on a strip of the carrier frame (these two strips thus form a compartment into which the locking element engages) and interact with the abutment surfaces of the locking elements.
    Another variant of the invention provides that the optical fiber arrangement is inserted in the first fastening point and displaced there (transverse) transversely to the longitudinal axis, instead of a pivoting movement. This is illustrated on the Ausführungs¬beispiels shown in Fig. 12 to 14.
    Fig. 12 shows a strip 26, which is formed in the first attachment point as a modification of the bar 25 with a slot-like recess 261. In this rectilinear recess 261, the coupling-in region 15 '(FIG. 14) can be inserted in a lateral movement, namely transversely to the longitudinal axis c. Fig. 13 shows a variant 27 of the strip, wherein the recess 271 is designed as an angled backdrop-like guide, which causes insertion alongWegstücken in different directions. The recess 261, 271, or more precisely its end region 262, 272, preferably runs in the same direction as the direction along which the connection is established at the second fastening point 24.
    Fig. 14 shows the coupling-in portion 15 'of a lead 11' of a light guide according to this embodiment. In this case, the fastening device 13 'comprises, for example, two pairs of lugs 131', 1321. The lugs can be supported on the left and right in the end region 262, 272 of the recess, by means of contact surfaces 1331, 134 'which face one another and between them absorb the strip, more precisely the edge of the strip on the recess 261, 271. In order to prevent the insertion region 15 ', when inserted in the end region 262, 272, from undesirably leaving the latter, resilient elements 263 can be provided at the entrance to the end region , 273 be provided, which form stops against a return movement. Alternatively or additionally, the end portion may retain the engagement region 15 'by clamping action due to a correspondingly narrow shape.
    权利要求:
    Claims (12)
    [1]
    1. Lighting device (20) for a vehicle, in particular for a motor vehicle, um¬fassend at least one light source and at least one of the at least one light source associated optical fiber assembly (10) for guiding the light emitted from the at least one light source and coupled into the light guide assembly light wherein the Lichtleiteran¬ order (10) in a support frame (22) of the lighting device (20) is mountable and - a head portion (12) with at least one outcoupling element (18) for Auskoppe¬lung at least a portion of the coupled light, and - a supply line (11), which comprises a coupling-in area (15), which is set up for the coupling of light from a light source and through which light coupled in to the head section (12), comprises, characterized in that the coupling-in area (15) a first fastening device (13) which at least a transverse to egg The coupling region (15) can be inserted into a first fastening point (23) of the carrier frame (22) and locked therein by means of the first fastening device and the head portion (12) has second attachment means (14) for securing the head portion (12) to a second attachment location (24) of the support frame (22).
    [2]
    A lighting device (20) according to claim 1, characterized in that the light guide assembly (10) is inserted in a state in which the coupling portion (15, 15 ') is inserted in the first attachment point (23, 26, 27) but the head portion (12 ) at the second attachment point (24) is not yet determined, in the first attachment point (23, 26,27) about or transversely to the longitudinal axis (c) movable, namely pivotable or displaceable, is.
    [3]
    3. Lighting device (20) according to claim 1 or 2, characterized in that the at least one locking element (131,132) is integrally formed with the Einkopplungsbereich (15).
    [4]
    4. Lighting device (20) according to any one of the preceding claims, characterized ge indicates that the locking element (131) is a on the coupling region (15) projecting nose, which faces away from a Lichteinkopplungsfläche (17) of the Einkopplungs¬ region (15) Side forms a stop surface (133).
    [5]
    5. Lighting device (20) according to any one of the preceding claims, characterized ge indicates that the Einkopplungsbereich (15) has two locking elements (131,132), which along the longitudinal axis (c) offset and are preferably arranged in different Winkelpositio¬nen.
    [6]
    6. Lighting device (20) according to claim 5, characterized in that each of the two locking elements (131,132) has a stop surfaces (133,134), wherein the stop surfaces oriented opposite to each other and preferably facing each other, and that in the first attachment point (23) with the abutment surfaces of Verrieπlungelemente cooperating mating surfaces (232, 233) are provided.
    [7]
    7. lighting device (20) according to claim 6, characterized in that the Ge¬genflächen (232, 233) as upper side and lower side surfaces of at least one bar (25) of the carrier frame (22) are formed.
    [8]
    8. Lighting device according to one of claims 1 to 4, characterized in that the Einkopplungsbereich has a locking element with opposing stop surfaces, and that in the first attachment point two mating surfaces are provided, which are each formed on a bar of the support frame and with the Stop surfaces of the locking elements interact.
    [9]
    9. lighting device (20) according to any one of the preceding claims, characterized in that the Einkopplungsbereich (15) is formed as a substantially circular cylindrical end of a light guide at which the light coupling through the end face (17) of the circular cylindrical end takes place as a light coupling surface.
    [10]
    10. Lighting device (20) according to one of the preceding claims, characterized in that the second fastening device (14) at least one Verrastungsele-element (141), namely a latch or a latching stop comprises, which with a zugeordnet counter element ( 241) of the second fastening point (24), namely a latching stop or a latch, cooperating latching.
    [11]
    11. optical fiber arrangement (10) according to claim 10, characterized in that the second fastening device (14) additionally comprises at least one centering device (142) with corresponding recesses and / or projections at the second attachment point (24) for centering the head portion (12 ) cooperates in the support frame (22).
    [12]
    12. The lighting device (20) according to any one of the preceding claims, characterized ge indicates that the attachment point (13) is opaque and with the inserted therein Einkopplungsbereich (15) of the light guide assembly (10) to the interior of the Be¬ illumination device against stray light forms a sealed connection.
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    同族专利:
    公开号 | 公开日
    JP2017528901A|2017-09-28|
    CN106716006A|2017-05-24|
    WO2016040971A1|2016-03-24|
    US20170261168A1|2017-09-14|
    ES2732554T3|2019-11-25|
    EP3194210A1|2017-07-26|
    US10443803B2|2019-10-15|
    JP6336212B2|2018-06-06|
    AT516170B1|2016-03-15|
    CN106716006B|2019-07-30|
    EP3194210B1|2019-04-03|
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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 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50650/2014A|AT516170B1|2014-09-16|2014-09-16|LIGHTING DEVICE WITH LOCKABLE LIGHT GUIDE ARRANGEMENT|ATA50650/2014A| AT516170B1|2014-09-16|2014-09-16|LIGHTING DEVICE WITH LOCKABLE LIGHT GUIDE ARRANGEMENT|
    EP15756544.1A| EP3194210B1|2014-09-16|2015-08-04|Lighting device with lightguide assembly which can be locked therein|
    ES15756544T| ES2732554T3|2014-09-16|2015-08-04|Lighting device with an arrangement of light conductors that can be embedded in it|
    CN201580049664.XA| CN106716006B|2014-09-16|2015-08-04|With the lighting device in the optical conductor component that can be wherein latched|
    PCT/AT2015/050189| WO2016040971A1|2014-09-16|2015-08-04|Lighting device with lightguide assembly which can be locked therein|
    JP2017533661A| JP6336212B2|2014-09-16|2015-08-04|Illumination device having a light guide device that can be fixed|
    US15/510,725| US10443803B2|2014-09-16|2015-08-04|Lighting device with lightguide assembly which can be locked therein|
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