WO2022135970A1 - Pièce décorative illuminable ayant une pièce moulée qui présente une bande d'éclairage à l'arrière, et procédé de production de la pièce décorative - Google Patents

Pièce décorative illuminable ayant une pièce moulée qui présente une bande d'éclairage à l'arrière, et procédé de production de la pièce décorative Download PDF

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Publication number
WO2022135970A1
WO2022135970A1 PCT/EP2021/085156 EP2021085156W WO2022135970A1 WO 2022135970 A1 WO2022135970 A1 WO 2022135970A1 EP 2021085156 W EP2021085156 W EP 2021085156W WO 2022135970 A1 WO2022135970 A1 WO 2022135970A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip
luminous
light
molded part
carrier
Prior art date
Application number
PCT/EP2021/085156
Other languages
German (de)
English (en)
Inventor
Zhikai YU
Original Assignee
Hib Trim Part Solutions 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 Hib Trim Part Solutions Gmbh filed Critical Hib Trim Part Solutions Gmbh
Publication of WO2022135970A1 publication Critical patent/WO2022135970A1/fr

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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
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F21S4/24—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/005—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
    • F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
    • 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/10—Light sources with three-dimensionally disposed light-generating elements on concave supports or substrates, e.g. on the inner side of bowl-shaped supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • Illuminatable decorative part with a molded part with a light strip arranged on the back and method for producing the decorative part
  • the invention relates to an illuminated decorative part and a method for its production.
  • a large number of different decorative parts that can be illuminated are known in the prior art. Provision is often made for the illumination of a large-area printed circuit board, which can be rigid or flexible, to be arranged essentially over the entire area on a molded part of the decorative part. On the circuit board are then on individual places illuminants provided, with large areas on the circuit board remain free because they are not needed.
  • the printed circuit board intended for the lighting must be adapted to the resulting new boundary conditions, since otherwise it can usually no longer be arranged on the molded part in the intended way.
  • the invention is therefore based on the object of overcoming the aforementioned disadvantages and providing an illuminated decorative part with a molded part and a method for its production, in which an illumination function is realized on the molded part without wasting material and in a simple manner and the assembly that provides the lighting does not have to be fully adapted to a change in the molded part.
  • an illuminated decorative part is proposed with a molded part which has a two- or three-dimensional visible surface on one visible side and a rear side facing away from the visible side has carrier surface.
  • the carrier surface can, for example, be designed to correspond to the visible surface.
  • the molded part can, for example, define or encircle an interior space, in which case the visible surface can be an exterior surface and the carrier surface can be an interior surface facing the interior space.
  • the entire outer surface is understood as pointing to the visible side and the entire inner surface as pointing to the rear.
  • a molded part can also form an interior space, in which case the surface facing the interior space can be understood as the visible surface and the outer surface facing away from it as the support surface.
  • the molded part has a large number of luminous points which are to be illuminated in order to illuminate the decorative part.
  • the shaped part can be transilluminated at the light points from the carrier surface to the visible surface, so that light emitted from the back is visible at the light points on the visible side.
  • the luminous points are distributed over the viewing area according to a predetermined pattern.
  • the decorative part has a flexible light strip with a multiplicity of contact points distributed along a longitudinal direction of the light strip.
  • One illuminant from a plurality of illuminants is arranged on at least some of the contact points, with the illuminants arranged at the contact points being able to be seen as part of the luminous strip.
  • the light sources arranged at the contact points which can be, for example, side LEDs, top LEDs or LEDs in general, are arranged and electrically contacted according to a predetermined distribution and according to the number of light points, so that preferably each light point has exactly one light source and exactly one luminous point is assigned to each illuminant.
  • the light strip is wound or coiled around an axis on the back of the molded part and is arranged along a path connecting the light points, in which the light strip extends the axis in the circumferential direction around the axis rotates.
  • the axis can be, for example, an imaginary axis and in particular a vertical axis of the molded part or the decorative part.
  • the helical arrangement or arrangement wound around the axis can result in a helical or spiral arrangement of the luminous strip.
  • each luminous point is assigned a lamp, so that light can be emitted from the lamps from the back or from the carrier surface through the molded part to the visible side or to the visible surface.
  • the basic idea of the invention is therefore, in the case of an illuminated decorative part, in which the prior art would have provided a large-area rigid or flexible printed circuit board for contacting the lamps or for transilluminating the points of light, to replace the large-area printed circuit board with a light strip which, according to is wound through the position of the luminous dots specific path and arranged on the back of the molded part.
  • the light sources can be arranged according to the position of the light points at a large number of predetermined contact points of the light strip, so that on the one hand the light strip can be used for different variants of the decorative part that can be illuminated, and on the other hand the entire light strip does not have to be modified when the decorative part is changed, since each only the position of the lamps can be adjusted or more or other lamps can be arranged differently on the light strip or at the contact points.
  • the decorative part provides an interior space defined by a molded part, in which the light strip is also arranged, this can be filled, for example by injection, after the helical arrangement of the light strip, so that the light strip is filled by the filling material, such as a plastic, in the molding is fixed.
  • the filling material such as a plastic
  • the light points each as an opening is formed, which passes through the molded part from the support surface to the visible surface.
  • the openings each form an opening, in which case the lighting means can also extend at least in sections into the respective openings or through the respective openings to the visible side.
  • the molded part can also have transparent or translucent sections at least in the area of the luminous dots and can accordingly also be completely transparent or translucent, so that the molded part can also be transilluminated at the luminous dots.
  • the molded part can function integrally as a decoration or display layer, behind which the lighting means are “hidden” or by which the lighting means are covered.
  • the light strip bears against the carrier surface at least in sections.
  • the light strip can be connected to the molded part and glued, for example, to the adjacent sections.
  • the light strip lies against the carrier surface over its entire extent.
  • the luminous strip can not only be glued but instead or additionally also be connected to the carrier surface by mechanical holders or fastening elements.
  • the luminous band can be cast into the molded part immediately during production of the latter, with separate production and only superficial fixing of the luminous band by gluing or, for example, clamping, allowing simpler and more flexible production. If the fixation is realized by gluing, the use of a heat-activatable and/or pressure-activatable adhesive is advantageous. When gluing or using an adhesive, this can also be arranged as an adhesive tape on the light strip or along the path on the molded part or the carrier element explained later,
  • the luminous strip can bear against the carrier surface at least in a respective region of the carrier surface directly adjoining the luminous points.
  • Sections of the luminous strip which each run between two luminous points and preferably between two luminous points directly adjacent to one another, can rest at least in part over their entire surface on the carrier surface and/or at least partially protrude from the carrier surface. This means that, for example, the first sections of the strip running from illuminated point to illuminated point are in contact over the entire surface and second sections running from illuminated point to illuminated point are only directly adjacent to the illuminated points and protrude from the carrier surface between the illuminated points.
  • the protrusion of these sections can lead to an arcuate course in each case, in which the light strip bulges out in sections towards the axis.
  • Such a protruding or bulging is advantageous because a tolerance of the light strip or a tolerance regarding the positions of the light points can be compensated by the light strip without having to adjust the position of the light source on the light strip or the contacting of the light source with the contact points .
  • the decorative part has a carrier element which is arranged on the rear of the molded part.
  • the light strip rests at least in sections on the carrier element and is arranged between the carrier element and the molded part. It is advantageous here that the light strip can first be arranged on the carrier element and wound along the carrier element. The carrier element can then be arranged in a predetermined arrangement on the back of the molded part, so that the lighting means of the luminous strip are again assigned to the luminous points in the predetermined manner.
  • these coding elements can provide, through which only a specific arrangement relative to each other is possible.
  • the carrier element can rest on a large or full surface of the molded part or define a gap between the surface of the carrier element facing the molded part and the carrier surface of the molded part in which the light strip is arranged. If such a carrier element is provided, the molded part can be designed purely as a decorative element, which determines the appearance of the decorative part on the visible side, but does not have to provide any load-bearing capacity.
  • the light strip is fixed to the carrier element, for example by gluing or by fastening elements, and that the carrier element and/or the light strip is fixed to the molded part or the molded part to this.
  • the carrier element serves both as a carrier for the light strip and as a carrier for the molded part.
  • the light strip is preferably formed from a flexible strip-shaped carrier strip with conductor tracks arranged thereon or therein and the contact points.
  • the contact points are also electrically contacted with the conductor tracks and are provided at regular and preferably uniform intervals along the longitudinal direction of the luminous strip.
  • an advantageous variant of the invention also provides that at all contact points or only at the contact points at which a lamp is provided, an electrical interface for electrical contacting of the Conductor tracks is provided with the respective light source.
  • the electrical interfaces can each be in the form of soldering pads, contact holes or sockets, to which the lighting means can be electrically connected.
  • the lamps can be SMD components, so that they can be contacted by surface mounting.
  • the interfaces can be designed as contact holes and thus for contacting THD components, i.e. for through-hole assembly.
  • the lighting means can have plug-in connectors that correspond thereto, so that they form a plug-in connection with one another. Accordingly, the lamps can be easily installed or repositioned by plugging them in.
  • a further variant of the invention provides that the interfaces are designed to enable electrical contacting of the respective lighting means along an area extending in the longitudinal direction of the lighting strip.
  • solder pads of an interface can extend along the longitudinal direction of the light strip, so that a light source to be contacted with these solder pads can be displaced along the longitudinal direction of the light strip to adapt to the associated light points on the solder pads and mounted or positioned at the appropriate position, i.e. on the Solder pads can be soldered.
  • the interfaces can be designed to enable electrical contacting of the respective lamps in an area transverse to the longitudinal direction, i.e. in the transverse direction of the light strip, so that a lamp can be positioned in the transverse direction on the light strip or the Carrier tape can be moved and contacted at the appropriate position.
  • the light strip can have a surface facing the visible side, on which the lighting means can be arranged, and a surface facing the axis, ie the rear surface. If further electrical components, such as resistors, semiconductors or ICs, are to be arranged on the carrier strip or integrated into the luminous strip, the luminous strip can have a large number of additional contact points and components with which electrical contact is made at the additional contact points.
  • the components are arranged on a surface of the carrier strip facing the carrier surface of the molded part or on a surface of the carrier strip facing away from the carrier surface of the molded part and facing the axis and are contacted with the conductor tracks.
  • components arranged on the back of the carrier strip, which are therefore arranged on the surface of the carrier strip facing the axis, are advantageous since they face away from the molded part and therefore do not have to be taken into account in the molded part.
  • pockets or recesses can be provided for them in the molded part or on the carrier surface, so that the further electrical components extend at least in sections into the molded part.
  • the light sources can be designed as side LEDs or top LEDs, for example, which emit light sideways or “upwards”.
  • the light sources do not emit light in a single direction, but usually in a cone shape, the light sources can be assigned lighting directions in which they emit light in a predetermined manner.
  • the lamps are divided into at least two groups, with the lamps in each group being designed to emit light along a common lighting direction which differs from the lighting directions of the lamps in the other groups.
  • the lighting means of a first group can light in a first lighting direction and, for example, orthogonally emit light in the longitudinal direction of the luminous strip and the luminous means of a second group emit light in a second luminous direction opposite to the first luminous direction.
  • the light sources of a group do not have to be arranged in immediate succession on the light strip for this purpose.
  • the light sources of different groups can be provided alternately on the light strip.
  • a further aspect of the invention relates to a method for producing an illuminated decorative part, which can be the decorative part according to the invention explained above, so that the developments described with regard to the decorative part and their features can also be applied directly to the method.
  • the decorative part has a molded part which has a two- or three-dimensional visible surface on a visible side and a carrier surface on a rear side facing away from the visible side.
  • the molded part has a multiplicity of luminous points at which the molded part can be transilluminated from the carrier surface to the visible surface.
  • the luminous dots can be formed, for example, by breakthroughs or openings which run through the molded part from the carrier surface to the visible surface.
  • the luminous points are distributed over the viewing area according to a predetermined pattern.
  • a three-dimensional path wound around an axis is determined, which can be spiral or helical, for example.
  • the luminous dots arranged according to the predetermined pattern on the carrier surface are connected to one another in series by the path. It is preferably provided that the path does not run in a serpentine manner or in a zigzag pattern along the carrier surface.
  • the path should not have any sharp changes in direction, so that the light strip can follow the path without being damaged.
  • An extension of the path or the light strip over several levels is achieved by the coiled shape around the axis.
  • the three-dimensional path is thus “stretched” to form the line, with the illumination positions still being provided along the line at distances corresponding to the distances between the luminous points along the path.
  • a flexible light band is then provided with a length at least corresponding to the length of the line, which has a large number of contact points along its longitudinal direction.
  • contact points which are each provided directly adjacent to one another, so that the number of contact points (clearly) exceeds the number of lighting positions or points of light and lighting means can be contacted with the contact points adapted to the respective path.
  • a light source is arranged and electrically contacted with the respective contact point, so that one light source is assigned to a light point.
  • the closest contact point in each case which is preferably closest in a mounting direction along which the light band is mounted on the molded part, can also be understood as congruent with the corresponding lighting position, so that the light band is not stretched during assembly to compensate for tolerances, but gathered or can be arranged in sections projecting arcuate from the molded part.
  • the light strip is wound around the axis on the back of the molded part, i.e. arranged spirally, and one light source is arranged at each light point, so that light from the light sources can be emitted from the carrier surface or from the rear through the formed part to the visible surface or to the visible side can be emitted.
  • the arrangement of the luminous strip on the rear side with respect to the molded part can essentially be divided into two, depending on the decorative part to be produced species are carried out.
  • the decorative part can also have a carrier element which can be arranged on the back of the molded part.
  • the light strip is arranged at least in sections on the carrier element and in particular on a surface of the carrier element pointing towards the shaped part, so that the carrier element with the light strip arranged thereon can be mounted or connected to the shaped part.
  • the luminous strip is then arranged in the manner of a sandwich between the carrier element and the molded part.
  • the light strip can also be arranged directly and at least in sections on the rear support surface of the molded part.
  • the basic idea of the method is again to determine a path wound helically around an axis, along which the luminous points can be connected in series and to provide a luminous band specially provided for this path, which provides luminous means at the correct locations.
  • a slope of the path and correspondingly also a slope of the luminous strip can be constant within a tolerance range and the path can wind helically or spirally around the axis.
  • a three-dimensional model of the carrier surface with the light points is preferably also created.
  • the three-dimensional For example, a spatial surface is converted to a two-dimensional surface by unfolding. A line connecting the luminous points is then determined on the two-dimensional surface, which line forms the path when the two-dimensional surface is converted back into the three-dimensional carrier surface.
  • an identical part is used as the carrier strip of the light strip, which is preferably separated from an endless strip regardless of the variants or possible changes becomes.
  • a long carrier strip that can be stored, for example, on rolls and from which individual carrier strips for the decorative parts can be separated can also be understood as an endless strip.
  • the light strip has a carrier strip which is separated in length at least according to a length of the line from an endless strip.
  • the carrier tape can be equipped with the lighting means before or after the carrier tape has been separated from the endless tape.
  • the path or the luminous strip provided by means of the path can be optimized in order to connect the luminous dots with a minimum length and while maintaining maximum deformability of the luminous strip or the carrier strip.
  • the gradient of the helical arrangement of the luminous strip around the axis can also change in sections.
  • FIG. 1 shows a decorative part 1 that can be illuminated, as is fundamentally proposed by the invention, such a decorative part 1 also being able to be made optically identical to its visible side by a component that is already known in the prior art and deviates from the decorative part 1 according to the invention.
  • the shape of the decorative part 1 is determined by a molded part 10, which in the present case is sleeve-like or cup-like, so that the outward-facing visible surface 11 is also three-dimensional.
  • the molded part 10 could also only run in one plane or essentially flat, so that the visible surface 11 would also be flat or two-dimensional.
  • the molded part 10 forms the carrier surface 12 towards the back, which in the illustrated variant corresponds to the interior defined or spanned by the molded part 10 or faces the axis A running centrally through the interior.
  • a multiplicity of luminous points 13 are provided on the molded part 10 , at which the decorative part 1 should be able to be illuminated by the lighting means 22 .
  • the prior art provides, for example, for a large-area and rigid or flexible printed circuit board 20' to be provided on the carrier surface 12 of the molded part 10, as is shown in the case of the decorative part T that can be illuminated in Figure 2. It is provided that the printed circuit board 20' rests over the entire surface on the carrier surface 12 and is connected to it or to the molded part 10, with lighting means being provided on the printed circuit board 20' only at the light points 13 and the surrounding or remaining areas on the Printed circuit board 20' remain free and are thus "wasted". Accordingly, there is a high material requirement for this variant. In addition, the printed circuit board 20' must be adapted in the event of a change, for example in the carrier surface 12, by changing the shape of the molded part 10, so that separate printed circuit boards 20' must be produced, stored and installed for each variant.
  • FIG. 3 a variant according to FIG. 3 is also known in the prior art, in which the points of light 13 are connected by a conductor track arrangement 20′′ specially provided for this purpose.
  • a conductor track arrangement 20′′ specially provided for this purpose.
  • Both the printed circuit board 20' in Figure 2 and the conductor track arrangement 20" in Figure 3 are preferably hidden behind the molded part 10 or in an interior space formed by the molded part 10 and on the visible side or on the visible surface 11 are not visible, so that they are shown in Figures 2 and 3 only to improve understanding.
  • the molded part 10 that determines the shape of the decorative part 1 is designed in the manner of a sleeve or cup and defines a hollow space or interior space.
  • a light strip 20 is arranged on the inside or the rear side of the molded part 10 facing the interior, which takes over the function of the printed circuit board 20' from FIG. 2 or the conductor track arrangement 20" from FIG. 3 in a flexible and advantageous manner .
  • the luminous strip 20 is coiled around the axis A on the rear side of the molded part 10, i.e. here in the interior space defined by the molded part 10, or arranged so as to wind around the axis A, with the luminous strip 20 in the variant according to Figures 4 to 6 in the Is arranged essentially spirally and rests against the support surface 12 over its entire length.
  • the luminous strip 20 has a large number of contact points 21, at each of which a luminous means 22 can be arranged, whereby luminous means 22 are arranged only at the contact points 21, which correspond to one of the luminous points 13 or to such a luminous point 13 adjoin.
  • the entire luminous strip 20 does not have to be adjusted.
  • the pitch of the windings the arrangement of the lighting means 22 on the contact points 21 and/or whether the light strip 20 is in contact with the carrier surface 12 is changed, for example, without the main component of the light strip 20, the carrier strip 23 with the parts provided thereon being changed Having to change contact points 21 and the conductor tracks, as explained in the context of the description of the figures for FIGS.
  • a variant of the decorative part 1 is shown here, in which the sleeve or cup shape of the molded part 10 results in a substantially full-area and therefore advantageous contact of the light strip 20 on the carrier surface 12, but a decorative part with a molded part can also be provided , in which the molded part does not define a cavity or interior space.
  • the luminous strip 20 is also wound or coiled around an axis on the back, with the luminous strip 20 only adjoining the molded part on the visible side and during production with the remaining sections initially “hanging in the air” or on a cover or another molded part is present.
  • the light strip 20 can also, in particular with regard to its ends, Longitudinally L are adjusted to the molded part 10.
  • a first end 24 of the luminous strip 20 is cut to correspond to an upper side O of the molded part 10, for example.
  • Contact points 21 are "destroyed" in the process, but this is not disruptive, since no luminous points 13 or luminous means 22 are provided in this area anyway and the remaining luminous means 22 on the luminous strip 20 or the luminous strip 20 remain controllable.
  • the decorative part 1 is turned in such a way that a second end 25 of the light strip 20 is visible, which is arranged on an underside U of the molded part 10 .
  • a plug-in contact makes contact with the light strip 20 or with the conductor tracks of the light strip 20, so that a voltage supply and/or a control device can be connected to the light strip 20.
  • the second end 25 of the luminous strip 20 can also extend out of the interior space defined by the molded part 10 or generally beyond the molded part 10 .
  • the gradient of the light band 20 about the axis A can fluctuate or change in sections in order to be able to arrange the light band 20 according to a path connecting the light spots 13 .
  • the light strip 20 shown on the visible surface 11 is shown visible only to improve understanding and is preferably hidden in the interior formed by the molded part 10 and on the visible side or on the visible surface 11 is not visible, so that an optical system according to FIG. 1 is achieved.
  • the light strip 20 is shown in FIGS. 7 and 8 as an essential part of the decorative part 1 according to the invention and the method for its production. It is preferably provided that the light strip 20 is formed from a flexible strip-shaped carrier strip 23 with conductor tracks arranged on or in it and not shown here, as well as the contact points 21, which are electrically contacted by the conductor tracks, so that a light source is arranged at each of the contact points 21 could.
  • Such a light strip 20 can be used for a large number of trim parts, since it can be separated from an endless strip and then a light source 22 is only arranged on the contact points 21 corresponding to the light points 13 and connected via the contact point 21 or an interface provided thereon to the Carrier strip 23 is connected, whereby the lamps 22 connected to the carrier strip 23 become part of the light strip 20 .
  • FIG. 7 shows, for example, a section from an endless strip, from which a luminous strip 20 with a large number of contact points 21 is obtained by cutting at the separation points X, the contact points 21 being provided at regular intervals on the carrier strip 23.
  • the luminous strip 20 can be connected to the lighting means after it has been separated from the endless strip or still as an endless strip at the specific contact points 21 22 are fitted, as shown in FIG.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne une pièce décorative illuminable (1) ayant une pièce moulée (10) qui présente une surface visible en deux ou trois dimensions (11) sur un côté visible et une surface de support (12) sur un côté arrière qui fait face à l'opposé du côté visible, la pièce moulée (10) présentant une pluralité de points d'éclairage (13) au niveau desquels de la lumière peut briller à travers la pièce moulée (10) depuis la surface de support (12) vers la surface visible (11) et qui sont répartis sur la surface visible (11) conformément à un motif prédéterminé, la pièce décorative (1) ayant également une bande d'éclairage souple (20) ayant une pluralité de points de contact (21) répartis le long de la direction longitudinale (L) de la bande d'éclairage (20), un moyen d'éclairage (22) d'une pluralité de moyens d'éclairage (22) est positionné et mis en contact électrique au niveau d'au moins certains des points de contact (21) dans chaque cas en fonction d'une distribution prédéterminée et correspondant au nombre de points d'éclairage (13), la bande d'éclairage (20) étant positionnée à l'arrière de la pièce moulée (10) le long d'un trajet qui relie les points d'éclairage (13) et enroulée autour d'un axe (A) et à chaque point d'éclairage (13) est associé un moyen d'éclairage (22) de telle sorte qu'une lumière du moyen d'éclairage (22) peut être émise à partir du côté arrière à travers la pièce moulée (10) vers le côté visible à chaque point d'éclairage (13).
PCT/EP2021/085156 2020-12-21 2021-12-10 Pièce décorative illuminable ayant une pièce moulée qui présente une bande d'éclairage à l'arrière, et procédé de production de la pièce décorative WO2022135970A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020134419.8A DE102020134419A1 (de) 2020-12-21 2020-12-21 Beleuchtbares Zierteil mit einem Formteil mit einem rückseitig angeordneten Leuchtband sowie Verfahren zur Herstellung des Zierteils
DE102020134419.8 2020-12-21

Publications (1)

Publication Number Publication Date
WO2022135970A1 true WO2022135970A1 (fr) 2022-06-30

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PCT/EP2021/085156 WO2022135970A1 (fr) 2020-12-21 2021-12-10 Pièce décorative illuminable ayant une pièce moulée qui présente une bande d'éclairage à l'arrière, et procédé de production de la pièce décorative

Country Status (2)

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DE (1) DE102020134419A1 (fr)
WO (1) WO2022135970A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822636A1 (de) * 1998-05-21 1999-11-25 Sidler Gmbh & Co Leuchtvorrichtung in der Fahrzeugtür
US20090190351A1 (en) * 2008-01-23 2009-07-30 Stanley Electric Co., Ltd. Lighting fixture using strip-shaped luminous body
WO2016166386A1 (fr) * 2015-04-15 2016-10-20 Grupo Antolín-Ingeniería, S. A. Garniture de toit lumineuse pour véhicules
DE102016106539A1 (de) * 2016-04-11 2017-10-12 International Automotive Components Group Gmbh Innenverkleidungsteil eines Kraftfahrzeuges

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008004483B4 (de) 2008-01-16 2010-07-29 Volkswagen Ag Fahrzeugleuchte mit flexibler Leuchtmittelbaugruppe
CN107013857B (zh) 2015-11-06 2023-12-12 利萨·德雷克塞迈尔有限责任公司 用于车辆的照明装置以及照明装置的制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822636A1 (de) * 1998-05-21 1999-11-25 Sidler Gmbh & Co Leuchtvorrichtung in der Fahrzeugtür
US20090190351A1 (en) * 2008-01-23 2009-07-30 Stanley Electric Co., Ltd. Lighting fixture using strip-shaped luminous body
WO2016166386A1 (fr) * 2015-04-15 2016-10-20 Grupo Antolín-Ingeniería, S. A. Garniture de toit lumineuse pour véhicules
DE102016106539A1 (de) * 2016-04-11 2017-10-12 International Automotive Components Group Gmbh Innenverkleidungsteil eines Kraftfahrzeuges

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