WO2023285034A1 - Verfahren zum herstellen eines beleuchteten bauteils für ein fahrzeug - Google Patents
Verfahren zum herstellen eines beleuchteten bauteils für ein fahrzeug Download PDFInfo
- Publication number
- WO2023285034A1 WO2023285034A1 PCT/EP2022/065533 EP2022065533W WO2023285034A1 WO 2023285034 A1 WO2023285034 A1 WO 2023285034A1 EP 2022065533 W EP2022065533 W EP 2022065533W WO 2023285034 A1 WO2023285034 A1 WO 2023285034A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- metal
- light
- visible side
- colored layer
- Prior art date
Links
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims description 33
- 239000011888 foil Substances 0.000 claims description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 17
- 229920003023 plastic Polymers 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
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- 238000003856 thermoforming Methods 0.000 claims description 2
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Classifications
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- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/06—Signs, boards or panels, illuminated from behind the insignia using individual cut-out symbols or cut-out silhouettes, e.g. perforated signs
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- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
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- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
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- 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
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/19—Attachment of light sources or lamp holders
- F21S43/195—Details of lamp holders, terminals or connectors
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- 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
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
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- 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
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
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- G—PHYSICS
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- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
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- G—PHYSICS
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- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
- G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs
Definitions
- the invention relates to a method for producing such an illuminated component and a vehicle with a component produced in this way.
- Illuminated components in the area of vehicles are known from the prior art.
- individual elements can be backlit and are fully or partially transparent in order to emit light, particularly in special patterns.
- illuminated brand logos or the like can be implemented in the area of a vehicle radiator grille.
- Such components are relatively complex in practice, since they require the actual component with the desired optical design on the one hand and an illumination unit assigned to the component on the other.
- the structure is still relatively thick from its surface serving as the visible side on the one hand to its surface or rear side facing away from this visible side on the other hand. This is a considerable disadvantage, especially if it is to be used in the area of the outer paneling, where the installation space is extremely tight in many areas due to the desired design.
- US 2018/0149321 A1 describes a comparable structure of a multi-component injection molding process, in which light-emitting diodes are also introduced.
- the intermediate foils can contain different decorations or colors.
- deep-drawing is used to create bulges for the light-emitting diodes, which are then covered by a transparent cover layer from the visible side.
- WO 2020/168324 A2 describes a decorative component for a vehicle with a light-emitting finish.
- a surface is placed on a light guide and provided with a metallic top layer so that light can be emitted through individual openings.
- US 20180149321 A1 describes embodiments for light-emitting structures made from a plurality of three-dimensionally shaped film layers with recesses for lighting elements. Backlit surfaces can then be arranged over these.
- US 2018/0264991 A1 describes a light arrangement which comprises two rear lights of a vehicle and an illuminated decorative strip arranged between them.
- the cover glass is provided with a translucent chrome foil, which can be illuminated when the light is on.
- a method for producing a flat paneling element for a vehicle is known from DE 102020005896 A1.
- This comprises a translucent layered body with recesses or indentations, which was coated with transparent plastic, as a result of which the indentations form raised ornaments on the visible side.
- the structure can be illuminated with light sources.
- the object of the present invention is now to specify an improved manufacturing method for an illuminated component which makes it possible implement further design aspects easily and efficiently, especially with a space-saving component that is suitable for the outer paneling of a vehicle.
- this object is achieved by a method for producing an illuminated component with the features in claim 1, and here in particular in the characterizing part of claim 1.
- Advantageous refinements and developments of the method result from the dependent subclaims.
- Claim 6 specifies a vehicle with a component manufactured in this way and also solves the problem.
- the illuminated component to be produced for a vehicle comprises a multi-layer structure with integrated electronic components which include, among other things, light-emitting diodes as part of these electronic components.
- one of the layers has a metal and can be formed, for example, as a metal layer or as a plastic layer provided with a metallization.
- the plastic layer can be vapour-deposited with the metal, for example.
- the illuminated component has an outer surface on the visible side, which is also referred to below as the front side.
- the electronic components are now arranged on the side facing away from this visible side.
- the layer containing the metal is covered in sections or partially by a colored layer on its surface facing the visible side, with the sections of the layer containing the metal not covered by the colored layer having a three-dimensional shape. They are therefore deformed out of the plane of the layer containing the metal, for example, but not necessarily, in the direction of the visible side.
- the layer containing the metal itself does not have to lie within a geometric plane, but can run in a curved manner, with the three-dimensional shape thus exceeding or falling below the surfaces of this layer in order to achieve the desired effect.
- light decoupling structures are arranged on the side or surface of the layer containing the metal facing away from the visible side.
- Such light extraction structures can, for example, by Printing or embossing can be introduced into the layer containing the metal. They ensure that the light from the light-emitting diodes, which is located on the visible side behind the layer containing the metal and in particular behind the colored layer partially covering it on its visible side, decouples light via the light decoupling structures in the areas in which the colored layer is interrupted.
- the method according to the invention for producing such an illuminated component now provides for the six basic method steps explained below in order to produce the illuminated component.
- the layer containing the metal ie in particular the chrome foil
- the layer containing the metal is partially provided with the color layer on the later visible side, which can be done in particular by printing, for example by screen printing.
- some of the electronic components for example conductor tracks and the like, are then applied to a rear side of the layer containing the metal, which is remote from the later visible side.
- the light decoupling structures are applied in the areas in which the layer containing the metal is not provided with the color layer on the opposite front side, ie in the areas that remain free of color. All of this can be done in a manner known per se, in particular by screen printing or, in the case of the light-coupling structures, also by embossing or the like.
- the next process step electronic components that cannot be realized using one or more printed layers are assembled. This particularly affects light-emitting diodes, while other electronic components such as resistors, capacitors and the like along with the conductive traces are more common can also already be produced by printing the back of the layer containing the metal.
- the three-dimensional shaping of the areas not provided with the colored layer takes place, in that they are shaped accordingly by deep-drawing or thermoforming, for example as three-dimensional structures in the direction of the later visible side beyond the colored layer.
- the light-coupling structures when the light-coupling structures are embossed, in contrast to imprinting the light-coupling structures, for example using a screen printing process, the light-coupling structures can also only be introduced in this deep-drawing step, especially if this is done using suitable tools which, on the side facing away from the later visible side, emboss light-decoupling structures in the layer containing the metal, which layer can be designed in particular as chrome foil.
- the base layer is then applied to the back of the layer containing the metal, in order to stabilize the previous structure on the one hand and to support the three-dimensionally shaped areas and at the same time securely enclose the electronic components.
- this step can be carried out, for example, by back-injection molding or by attaching a further film and injecting the material for the base layer between this film and the layer containing the metal.
- the visible side is provided with a transparent plastic as a top layer.
- this cover layer can preferably be smooth, i.e. levels the previously three-dimensional design on the visible side back to a smooth surface, under which the three-dimensionality affects the underlying layers, so that these can be seen , but no projections arise, which can be detected haptically and / or carry the risk of increased dirt accumulation.
- the transparent cover layer is applied by flooding or overspraying with a transparent plastic, in particular by flooding with polyurethane.
- the light decoupling structures can be introduced into the layer containing the metal according to a very favorable development of the method according to the invention in method step 2 by a printing method, in particular a screen printing method and/or in method step 4 by embossing.
- the layer containing the metal is formed as a chrome foil.
- a so-called chromium foil is typically a plastic foil which is applied with a metallic look, for example in that it is provided with chromium, silver or similar materials, in particular vaporized.
- a foil with a metallic effect can be achieved with a relatively small proportion of metal, so that the foil is permeable to light at least in one direction and, in particular, reflects the light in the other direction.
- the corresponding layer can also be designed in such a way that it is also largely transparent to radar radiation, so that, for example, corresponding radar sensors, such as those used for the environment sensors of a vehicle, can be placed behind the illuminated component without damaging it affect their functionality.
- the colored layer is formed as an opaque colored layer.
- an opaque colored layer is not permeable to light, so that in the case of illumination with the light-emitting diodes used, the light is coupled out only in the area of the light decoupling structures and shines through the layer containing the metal, while the neighboring areas covered with the colored layer are are opaque to light.
- the illuminated component is preferably used in the area of the exterior paneling of a vehicle, it can be provided that the colored layer is the same color as the paint finish of the vehicle or in a color that matches the design, for example a contrasting color.
- the vehicle according to the invention now includes a component manufactured according to the method. Further advantageous configurations of the illuminated component according to the invention also result from the exemplary embodiment, which is described in more detail below with reference to the figure.
- FIG. 1 shows a basic front view of a possible illuminated component in a schematic representation
- Fig. 2 is a sectional view through part of this illuminated component.
- an illuminated component provided with 1 in its entirety can be seen, which can be used, for example, in the area of the outer paneling of a vehicle.
- This can be, for example, the section in the front of the vehicle known as the radiator grille in conventional vehicles with internal combustion engines, which, for example in electrically powered vehicles, can no longer be in the form of an air-permeable grille, but in the form of a closed component.
- the component 1 itself is partially designed in the color of the car and has some sections labeled 3 shown here in the form of four rectangles and a circle, which are not designed in the color of the car, but which on the one hand appear in a metallic color when the backlighting is switched off, for example in chrome look.
- a chrome foil 5 is provided as a metal-containing layer as a central component. This is provided on its side facing the visible side 6 shown at the top in FIG. When this colored layer 2 is partially applied to the chrome foil 5, in the representation of Figure 1 with 3 designated sections left blank. As can be seen in the illustration in FIG. 2, these later form a three-dimensional structure in the direction of the visible side 6 or, in principle, also in the opposite direction to the visible side 6 .
- the composite produced in this first process step from the chrome foil 5 and the colored layer 2, which has been partially applied to this chrome foil 5, is still flat. It is then provided with electronic components, which are at least partially printed on. Purely by way of example, printed conductor tracks 7 can be seen in FIG. 2, in the area of which two light-emitting diodes 8 are then attached. Light decoupling structures 9 are also applied by printing in area 3, also on the side of chrome foil 5 facing away from visible side 6, so that they cannot be seen from visible side 6 in the non-illuminated state.
- this combination of electronics 7, 8, chrome foil 5 and colored layer 2 with the light decoupling structures 9 applied in the corresponding sections 3 is subjected to a deep-drawing process or thermal forming in order to produce the three-dimensional configuration already visible in FIG. This creates two facets within the section 3, which can be seen from the visible side 6.
- the base layer 10 shown in FIG. The base layer 10 is designed as a transparent or translucent thermoplastic. This can be back-injected in particular behind the printed conductor tracks 7, the LEDs 8 and the light decoupling structures 9 in the area of the three-dimensionally shaped areas 3.
- the structure is then sealed with the cover layer 4 already mentioned, which can also be designed as a transparent thermoplastic or in particular as a cast-on layer made of polyurethane.
- the component is therefore sprayed over with this cover layer 4, for example, or preferably flooded, so that the layer thickness of the cover layer 4 is greater than the three-dimensional shape of the sections 3.
- This creates a smooth surface on the visible side 6, under which the three-dimensional shape of the sections 3, ie the facet structure here, can be seen accordingly, but does not protrude beyond the surface of the visible side 6.
- the structure now has the visual appearance of the combination of the chrome of the chrome foil 5 in sections 3 and the vehicle color in the colored layer 2 applied thereto.
- the illuminated one is backlit Component 2 by the transparent or translucent base layer 10 is illuminated.
- the colored layer 2 is ideally impermeable to light, so that light is radiated in the direction of the visible side 6 only in the area of the sections 3, supported or enabled by the light decoupling structures 9.
- the light-emitting diodes 8 can be implemented and controlled in any way, so that in particular different colors, changing colors or the like are conceivable, as well as flashing, regulation of the light intensity, for example depending on the ambient brightness, swelling up and down the light intensities or the like.
- the entire component 1 is to be constructed in an extremely compact manner transverse to the stacking direction of the individual layers and can thus be easily integrated into any existing design and, unlike previous constructions with complex and correspondingly thicker lighting technology, can also be easily and efficiently installed in existing designs without here having to constructively adapt the proportions and available installation space.
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- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/578,833 US20240321149A1 (en) | 2021-07-13 | 2022-06-08 | Method for producing a lit component for a vehicle |
JP2024500099A JP2024529295A (ja) | 2021-07-13 | 2022-06-08 | 車両用の点灯部品を製造する方法 |
EP22733014.9A EP4371103A1 (de) | 2021-07-13 | 2022-06-08 | Verfahren zum herstellen eines beleuchteten bauteils für ein fahrzeug |
CN202280045174.2A CN117561561A (zh) | 2021-07-13 | 2022-06-08 | 用于制造用于车辆的发亮构件的方法 |
KR1020237045297A KR20240015108A (ko) | 2021-07-13 | 2022-06-08 | 차량용 조명 구성품을 제조하는 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102021003615.8A DE102021003615B4 (de) | 2021-07-13 | 2021-07-13 | Verfahren zum Herstellen eines beleuchteten Bauteils für ein Fahrzeug |
DE102021003615.8 | 2021-07-13 |
Publications (1)
Publication Number | Publication Date |
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WO2023285034A1 true WO2023285034A1 (de) | 2023-01-19 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/EP2022/065533 WO2023285034A1 (de) | 2021-07-13 | 2022-06-08 | Verfahren zum herstellen eines beleuchteten bauteils für ein fahrzeug |
Country Status (7)
Country | Link |
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US (1) | US20240321149A1 (de) |
EP (1) | EP4371103A1 (de) |
JP (1) | JP2024529295A (de) |
KR (1) | KR20240015108A (de) |
CN (1) | CN117561561A (de) |
DE (1) | DE102021003615B4 (de) |
WO (1) | WO2023285034A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102023000084A1 (de) | 2023-01-12 | 2023-11-16 | Mercedes-Benz Group AG | Abschnittsweises hinterleuchtetes Bauteil |
DE102023000246B3 (de) | 2023-01-27 | 2024-01-18 | Mercedes-Benz Group AG | Kraftfahrzeug mit einem Karosserieteil und einer Lichtquelle |
DE102023000269A1 (de) | 2023-01-30 | 2024-08-01 | Mercedes-Benz Group AG | Beleuchtbarer Dekormehrschichtverbund, Anbauteil für ein Fahrzeug sowie Fahrzeug |
Citations (6)
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US20180149321A1 (en) | 2016-11-30 | 2018-05-31 | Tactotek Oy | Illuminated structure and related method of manufacture |
US20180264991A1 (en) | 2015-12-05 | 2018-09-20 | Daimler Ag | Lamp assembly having rear lamps and an illuminated decorative strip |
US10485094B1 (en) | 2018-08-27 | 2019-11-19 | Tactotek Oy | Multilayer structure with embedded sensing functionalities and related method of manufacture |
WO2020168324A2 (en) | 2019-02-15 | 2020-08-20 | Lacks Enterprises, Inc. | Decorative component for a vehicle with light emitting finish |
DE102020005896A1 (de) | 2020-09-28 | 2020-11-12 | Daimler Ag | Verfahren zur Herstellung eines flächigen Verkleidungselementes für ein Fahrzeug |
WO2021099670A1 (es) * | 2019-11-20 | 2021-05-27 | Aludec S.A. | Procedimiento de fabricación de una pieza de automóvil |
-
2021
- 2021-07-13 DE DE102021003615.8A patent/DE102021003615B4/de active Active
-
2022
- 2022-06-08 WO PCT/EP2022/065533 patent/WO2023285034A1/de active Application Filing
- 2022-06-08 JP JP2024500099A patent/JP2024529295A/ja active Pending
- 2022-06-08 KR KR1020237045297A patent/KR20240015108A/ko unknown
- 2022-06-08 US US18/578,833 patent/US20240321149A1/en active Pending
- 2022-06-08 EP EP22733014.9A patent/EP4371103A1/de active Pending
- 2022-06-08 CN CN202280045174.2A patent/CN117561561A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180264991A1 (en) | 2015-12-05 | 2018-09-20 | Daimler Ag | Lamp assembly having rear lamps and an illuminated decorative strip |
US20180149321A1 (en) | 2016-11-30 | 2018-05-31 | Tactotek Oy | Illuminated structure and related method of manufacture |
US10485094B1 (en) | 2018-08-27 | 2019-11-19 | Tactotek Oy | Multilayer structure with embedded sensing functionalities and related method of manufacture |
WO2020168324A2 (en) | 2019-02-15 | 2020-08-20 | Lacks Enterprises, Inc. | Decorative component for a vehicle with light emitting finish |
WO2021099670A1 (es) * | 2019-11-20 | 2021-05-27 | Aludec S.A. | Procedimiento de fabricación de una pieza de automóvil |
DE102020005896A1 (de) | 2020-09-28 | 2020-11-12 | Daimler Ag | Verfahren zur Herstellung eines flächigen Verkleidungselementes für ein Fahrzeug |
Also Published As
Publication number | Publication date |
---|---|
DE102021003615B4 (de) | 2024-10-17 |
DE102021003615A1 (de) | 2023-01-19 |
CN117561561A (zh) | 2024-02-13 |
JP2024529295A (ja) | 2024-08-06 |
US20240321149A1 (en) | 2024-09-26 |
EP4371103A1 (de) | 2024-05-22 |
KR20240015108A (ko) | 2024-02-02 |
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