EP3366984B1 - Beleuchtungseinrichtung eines kraftfahrzeugs - Google Patents

Beleuchtungseinrichtung eines kraftfahrzeugs Download PDF

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Publication number
EP3366984B1
EP3366984B1 EP17204570.0A EP17204570A EP3366984B1 EP 3366984 B1 EP3366984 B1 EP 3366984B1 EP 17204570 A EP17204570 A EP 17204570A EP 3366984 B1 EP3366984 B1 EP 3366984B1
Authority
EP
European Patent Office
Prior art keywords
structural component
coupling element
illumination device
tab
coupling
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.)
Active
Application number
EP17204570.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3366984A1 (de
Inventor
Silvio Richter
Klaus Schmickl
Alexander Müller
Uwe Pröbstl
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.)
Marelli Automotive Lighting Reutlingen Germany GmbH
Original Assignee
Marelli Automotive Lighting Reutlingen Germany 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 Marelli Automotive Lighting Reutlingen Germany GmbH filed Critical Marelli Automotive Lighting Reutlingen Germany GmbH
Publication of EP3366984A1 publication Critical patent/EP3366984A1/de
Application granted granted Critical
Publication of EP3366984B1 publication Critical patent/EP3366984B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/14—Bayonet-type fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/27—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting

Definitions

  • the invention relates to a lighting device of a motor vehicle, a first structural component of the lighting device being connected to a second structural component of the lighting device.
  • the U.S. 5,180,219 A discloses a vehicle headlamp having a reflector body portion closed by a lens element which snaps into locking engagement with the reflector body portion and serves to hold the two portions in a fixed relationship while an adhesive between the outer edges of the two portions cures.
  • headlights are only arranged in the front area of a vehicle. In addition to road safety, by making the vehicle visible to other road users, they serve in particular to illuminate the road ahead of the vehicle, in particular in the form of low beam and high beam, in order to improve the driver's view.
  • headlights can have at least one incandescent lamp, gas discharge lamp or light-emitting diode as the light source. They work according to a reflection principle, i.e. with a reflector that is mirrored towards the light source, or according to a projection principle with an additional projection or converging lens.
  • Lights are mainly used for road safety by making the vehicle visible to other road users.
  • front lights in the front area of the vehicle are used as position lights, indicator lights or daytime running lights
  • rear lights in the rear area of the vehicle are used, for example, as brake lights, rear lights, indicator lights or position lights and on one side of the vehicle as reversing lights.
  • the front lights can be integrated in the headlight, but they can also have one or more light functions as a separate light.
  • a number of lighting functions are usually integrated in a rear light.
  • Luminaires usually have incandescent lamps or light-emitting diodes (LEDs) as light sources and preferably work according to the reflection principle. So they usually have a reflector that reflects the light from the light source in such a way that the exiting light beams produce a desired light distribution in the light exit direction of the lighting device.
  • LEDs light-emitting diodes
  • cover pane In the light emission direction, all lighting devices are usually sealed with a translucent cover plate.
  • the cover pane can be designed as a clear pane without optically effective profiles (e.g. prisms) or at least in some areas with optically effective profiles.
  • the cover plate can be colored at least in certain areas. Dyeing in different colors is also conceivable.
  • the cover plate is preferably made of glass or plastic.
  • the object of the present invention is to provide a lighting device whose structural components can be connected to one another in a simple manner without impairing the functionality of one of the structural components.
  • the arrangement according to the invention offers the possibility of a play-free or at least low-play connection of the structural components. Furthermore, the invention requires Lighting device no additional parts and thus causes no additional costs for additional fasteners, such as springs, per se and their additional assembly.
  • the structural components can be connected in particular in such a way that an unintentional detachment or separation of the structural components is prevented.
  • the second structural component can have a lug on which the coupling element receptacle is arranged.
  • a reciprocal alignment of the first and the second structural component can take place via the tabs provided on the first and second structural component.
  • the coupling element has a bolt-like or nose-like section which is oriented obliquely, in particular perpendicularly, to the direction in which the bracket of the first structural component extends.
  • the bolt-like section can be aligned transversely to an assembly direction, i. H. the direction in which the structural components are assembled.
  • a positive connection can be realized in a particularly simple manner.
  • a deformation of the tab and the bolt of the first structural component is not required.
  • the tab and bolt can be made of lens material, e.g. B. PMMA, are formed, which allows only a small elastic deformation.
  • the coupling element is designed like a mushroom head.
  • the coupling element can thus reach behind the tab of the second structural component with a head part.
  • the head part of mushroom-like coupling element can also be used to align the first structural component relative to the second structural component.
  • the distance between the head part of the coupling element and the lug on which the coupling element is arranged corresponds to the width of the lug of the second structural component.
  • the first structural component can be positioned and aligned relative to the second structural component transversely to the assembly direction or in a first spatial direction.
  • the tab of the second structural component has an expandable slot, with the coupling element receptacle being designed as a slot width enlargement.
  • the coupling element can thus be pushed into the slot, with the slot widening.
  • the slot can close again, so that the coupling element lies immovably in the coupling element receptacle, at least in the assembly direction.
  • the lug is preferably made of an elastic material.
  • the fact that the coupling element lies in the coupling element receptacle means that the position of the first and second structural components relative to one another is positioned and fixed in the direction of the assembly direction or in a second spatial direction.
  • the position or alignment of the first structural component relative to the second structural component can also be determined in a third spatial direction, which is at an angle, in particular perpendicular, to the mounting direction.
  • Alignment of the first structural component relative to the second structural component during assembly can be made possible by providing a tapering insertion section in the region of the coupling element receptacle, in particular the slot having a tapering insertion section toward the coupling element receptacle.
  • the coupling element is thus guided through the insertion section in the direction of the coupling element receptacle, resulting in an alignment of the first structural component.
  • At least two, in particular three, preferably four, coupling points are provided, at which the first and the second structural component are coupled via a coupling element and a coupling element receptacle.
  • Additional centering elements or devices can be dispensed with if the first and the second structural component are connected to one another in a self-centering manner in at least two, preferably three, spatial directions.
  • the design of the coupling points can bring about the self-centering connection.
  • the structural components are connected to one another without play. This can ensure that during operation, for example while driving a vehicle, there is no relative displacement of the structural components as a result of mechanical effects, such as vibrations or impacts.
  • the tabs of the first and second structural components can be aligned parallel to an assembly direction.
  • the tab of the first structural component can protrude from a body of the first structural component.
  • the tab can protrude from the first structural component in the direction of the second structural component.
  • the tabs are preferably located on the rear side of the first structural component, designed for example as a lens, behind the visible lens surface.
  • the body of the second structural component has a recess for receiving the tab of the first structural component.
  • one of the structural components has a first number of tabs and/or coupling element receptacles for coupling to another structural component and a second number of tabs and/or coupling element receptacles for coupling another structural component.
  • the first number can correspond to the second number.
  • two projection lenses, each with four tabs can be connected to a lens carrier, so that two projection lenses are arranged on the lens carrier.
  • the coupling element receptacle can have a stop, the tab and/or the coupling element of the first structural component being held in contact with the stop by the coupling element receptacle.
  • the stops of several coupling element receptacles can define a stop plane.
  • the position of the first structural component relative to the second structural component can be defined by the stop plane.
  • the first structural component is a lens made of a transparent, colorless plastic.
  • the lens body is divided into a light passage area and an edge area.
  • the light from a light source unit enters the lens on the light entry side of the light passage area of the lens and exits the lens through the light exit surface.
  • the tabs are arranged in the edge area of the lens and protrude backwards in the edge area on the light entry side.
  • the lens, preferably also the edge area, the tabs and the coupling elements are made of one material in one piece.
  • the 1 1 shows a first structural component 1, designed as a projection lens, of a lighting device of a motor vehicle.
  • the light emission direction or the direction of travel runs in the direction of the X-axis of a coordinate system.
  • the Y-axis is horizontal and perpendicular to the direction of travel and the Z-axis is perpendicular to the roadway.
  • the first structural component 1 has a body 2 from which tabs 3, 4 protrude.
  • the tabs 3, 4 protrude backwards from the body 2, ie in the direction of a second structural component, not shown here, to which the first structural component 1 is to be attached.
  • coupling elements 5, 6 are arranged.
  • the coupling elements 5, 6 are designed like a mushroom head, with each coupling element 5, 6 having a bolt-like section 7, 8 and a head part 9, 10.
  • the head parts 9, 10 are at a certain distance from the tabs 3, 4.
  • the diameters of the head parts 9, 10 are larger than the diameters of the bolt-like sections 7, 8.
  • the coupling elements 5, 6, in particular their bolt-like sections 7, 8 extend transversely, in particular perpendicularly, to the direction of extension of the tabs 3, 4.
  • the second structural component 20 has tabs 21 to 28, only the tabs 23 to 26 being required to connect the first structural component 1 to the second structural component 20 can .
  • the lower lugs 21, 23, 26, 28 can be designed to be somewhat stronger than the upper lugs 22, 24, 25, 27.
  • the upper lugs 22, 24, 25, 27 can be intended only for the position of the first structural component 1 to keep.
  • the weight of the first structural component 1 can be absorbed by the lower brackets 21, 23, 26, 28, which are designed to be stronger.
  • the tab 23 has an expandable slot 29 which has a slot width increase in the area of a coupling element receptacle 30 .
  • the slot 29 tapers from the free end of the tab 23 towards the coupling element receptacle 30 in the area of an insertion section 29.1.
  • the coupling element receptacle 30 is essentially circular and can thus largely enclose or encompass the bolt-like section 7, 8 of a coupling element 5, 6. In particular, a coupling element 5, 6 latches in the coupling element receptacle 30.
  • the second structural component 20 has receptacles 3.1, 4.1 for receiving the tabs 3, 4 of the first structural component 1.
  • the tabs 21, 22, 27, 28 are used to attach another structural component.
  • the 3 shows an exploded view of a lighting device 40.
  • the lighting device 40 comprises the second structural component 20 and two first structural components 1, 31.
  • the first structural components 1, 31 are moved towards the second structural component 20 in the assembly direction 41 in such a way that the coupling elements 5, 6 or 42, 43 are inserted into the slots 29 of the tab 23, 24 or 21, 22.
  • There the coupling elements 5, 6, 42, 43 latch in the coupling element receptacles 30, 32, 33, 34. Because the width of the tabs 21, 22, 23, 24 essentially corresponds to the distance between the head parts 9, 10 of the coupling elements 5, 6, 42, 43 corresponds to the tabs 3, 4, 44, 45, an alignment takes place transversely to the assembly direction 41, ie in the horizontal direction.
  • the coupling element receptacles 30, 32, 33, 34 the inside diameter of which is adapted to the diameter of the bolt-like sections 7, 8, also result in centering or alignment in the vertical direction. Likewise, there is an alignment or centering in the assembly direction 41 by the coupling element receptacles 30, 32, 33, 34. In particular, the first structural components 1, 31 were fixed without play on the second structural component 20.
  • the 4 shows the lighting device 40 with installed structural components 1, 31, 20. It should be noted here that the structural components 1, 31 are connected to the structural component 20 in a detachable manner. From the representation of 4 it follows that the first structural components 1, 31 are aligned and centered in the spatial directions X, Y, Z.
  • the first structural components 1, 31 each have four tabs 3, 4, 44, 45.
  • the coupling elements 5, 6 represent retaining cams and are preferably integrally formed on the tabs 3, 4, 44, 45.
  • the fact that the coupling element receptacle 30 surrounds the coupling elements 5, 6 in a form-fitting manner results in a play-free arrangement of the first structural component 1, 31 with respect to the second structural component 20 in an X-direction and in a Z-direction.
  • a play-free arrangement in a Y-direction results from the mushroom-shaped design of the coupling elements 5, 6.
  • a covering panel 50 which has feet 51, 52.
  • the foot 51 rests on top of the tab 23, while the foot 52 rests against the tab 23 from below.
  • the slot 29 and thus the coupling element receptacle 30 are compressed, so that the coupling element 6 is surrounded in a form-fitting manner.
  • the freedom from play and the resistance to mechanical loads, in particular shocks can be improved.
  • a cover panel 50 is not absolutely necessary.
  • FIG. 1 shows a first structural component 101, designed as a projection lens, of a second lighting device of a motor vehicle.
  • the first structural component 101 has a body 102 from which tabs 103, 104 protrude.
  • the tabs 103, 104 protrude backwards from the body 102, ie in the direction of a second structural component, not shown here, to which the first structural component 101 is to be attached.
  • On the tabs 103, 104 coupling elements 105, 106 are arranged.
  • the coupling elements 105, 106 are nose-like and extend transversely, in particular perpendicularly, to the direction of extension of the tabs 103, 104.
  • Recesses 110, 111 are provided in order to facilitate alignment of the first structural component 101 with respect to a second structural component.
  • the recess 110 and a non-visible recess on the opposite side can serve to center the first structural component in a vertical direction, in particular a Z-direction, while the recess 111 is used to center the first structural component 101 in a Y-direction, in particular a horizontal direction.
  • the first structural component 101 can be made of a brittle material, in particular PMMA, and thus only have a low elasticity.
  • the tabs 103, 104 can only have a low level of elasticity and can be designed to be essentially rigid.
  • the second structural component 120 has coupling element receptacles 121 to 128. Only the coupling element receptacles 123 to 126 are required for fastening the first structural component 101 .
  • the second structural component 120 has ribs 129, 130, 131 which cooperate with the recesses 110, 111 to provide alignment and centering of the first structural component 101 to the second structural component 120. Alignment and centering can, however, also be carried out solely on the basis of the interaction of the tabs 103, 104 with the coupling element receptacles 123 to 126.
  • the 8 shows the lighting device 140 with installed structural components 101, 120, 131. It should be noted that the structural components 101, 131 can be detached from the structural component 120 are connected. From the representation of 8 it follows that the first structural components 101, 131 are aligned and centered in the spatial directions X, Y, Z.
  • the coupling element receptacles 123, 124 have tapered insertion sections 140, 141.
  • the insertion portions 140, 141 guide the tabs 103, 104, thereby aligning the first and second structural components 101, 120 in the Z-direction relative to each other.
  • the tabs 103, 104 rest against the insertion sections 140, 141, so that the tabs 103, 104 are arranged without play in the coupling element receptacles 123, 124 in the vertical direction.
  • the coupling element receptacles 123, 124 have stops 142, 143 against which the free ends of the tabs 103, 104 rest.
  • the stops 142, 143 of the coupling element receptacles 123, 124 form a stop plane AE.
  • the body on the second structural component 120 has a recess 103.1 for receiving the tab 104 of the first structural component 101.
  • Fixing elements 144, 145 of the coupling element receptacles 123, 124 are designed to be elastic, in particular resilient. When inserting the tabs 103, 104 into the coupling element receptacle 123, 124, they can first be deflected by the coupling elements 105, 106 and then engage behind the coupling elements 105, 106. The fixing sections 144, 145 of the coupling element receptacles 123, 124 cause the tabs 103, 104 held in contact with the stops 142, 143. Thus, the first structural component 101 is arranged without play in relation to the second structural component 120 in an X-direction.
  • the 10 shows a sectional view along the line AA 9 . It can be seen here that the fixing section 144 engages behind the coupling element 106 . In addition, the fixing section 144 bears laterally against the tab 104 . Because an identical arrangement of a tab and a fixing section is provided on the opposite side of the lighting device, the first structural component 101 is also fixed in a Y-direction with respect to the second structural component 120, resulting in a play-free arrangement in this axial direction as well.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP17204570.0A 2017-02-22 2017-11-30 Beleuchtungseinrichtung eines kraftfahrzeugs Active EP3366984B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017103566.4A DE102017103566A1 (de) 2017-02-22 2017-02-22 Beleuchtungseinrichtung eines Kraftfahrzeugs

Publications (2)

Publication Number Publication Date
EP3366984A1 EP3366984A1 (de) 2018-08-29
EP3366984B1 true EP3366984B1 (de) 2023-03-29

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ID=60569661

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EP17204570.0A Active EP3366984B1 (de) 2017-02-22 2017-11-30 Beleuchtungseinrichtung eines kraftfahrzeugs

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EP (1) EP3366984B1 (zh)
CN (1) CN108458318A (zh)
DE (1) DE102017103566A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019107662A1 (de) * 2019-03-26 2020-10-01 HELLA GmbH & Co. KGaA Beleuchtungseinrichtung für ein Kraftfahrzeug
DE102019129254A1 (de) 2019-10-30 2021-05-06 HELLA GmbH & Co. KGaA Linse, Linsensystem, Scheinwerfer und Kraftfahrzeug
FR3103877B1 (fr) * 2019-11-28 2022-07-08 Valeo Vision Elément optique et module lumineux d’un véhicule automobile équipé d’un tel élément optique
FR3113107B1 (fr) * 2020-07-30 2022-09-02 Psa Automobiles Sa Boîtier aval pour module optique destiné à équiper un véhicule automobile
FR3118656B1 (fr) * 2021-01-05 2023-05-12 Psa Automobiles Sa Groupe optique pour module optique de projecteur de véhicule automobile
CN215890676U (zh) * 2021-02-25 2022-02-22 法雷奥照明湖北技术中心有限公司 连接组件、车灯和车辆

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DE7605088U1 (de) * 1976-02-20 1977-08-11 Robert Bosch Gmbh, 7000 Stuttgart Scheinwerfer, insbesondere nebelscheinwerfer fuer kraftfahrzeuge
US5180219A (en) * 1991-08-05 1993-01-19 General Motors Corporation Vehicle headlamp assembly
DE29618223U1 (de) * 1996-10-21 1996-12-12 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
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FR2963394B1 (fr) * 2010-07-28 2012-08-31 Peugeot Citroen Automobiles Sa Dispositif de fixation d'un premier element sur un second element, par cooperation entre des pattes d'immobilisation et des pattes de fixation
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DE102017103566A1 (de) 2018-08-23
EP3366984A1 (de) 2018-08-29
CN108458318A (zh) 2018-08-28

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