• 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:
    Illuminated emblem for a vehicle. The present invention relates to an illuminated emblem for a motor vehicle, which is suitable to be preferably installed at some point in the vehicle body, its main function being to provide homogeneous illumination of the entire perimeter of the emblem. The main feature of this invention lies in the fact that the light beams generated by the different point light sources distributed in specific positions in the emblem exit outwards around the perimeter of the emblem in a homogeneous way, that is to say that an external observer perceives the same intensity of light around the entire perimeter of the emblem, without distinguishing sections with a higher light intensity and others with a lower light intensity. Other features of the illuminated emblem of this invention is that it is easy to manufacture and assemble, is low in cost, and has a minimal number of components. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2769903A1
    申请号:ES201831295
    申请日:2018-12-28
    公开日:2020-06-29
    发明作者:Mendonsa Maia André De；Sueiro Xesús Bendana；Martin Hupel
    申请人:SEAT SA；
    IPC主号:
    专利说明:

    [0003] The present invention generally concerns an emblem with illumination for a motor vehicle, which is suitable to be preferably installed at some point in the vehicle body, its main function being to provide homogeneous illumination of the entire perimeter of the emblem.
    [0005] Background of the Invention
    [0007] Currently, in the motor vehicle industry, different systems are known to generate a specific illumination of an emblem that is generally installed on the outside of a vehicle, where the emblem comprises a front part that has a logo.
    [0009] On the one hand, directly illuminated emblems are known, that is, in a frontal direction on the emblem, through the provision of light guides that direct the light from the light sources to the emblem. On the other hand, illuminated emblems are known where the light comes out in the lateral direction of the emblem and the perimeter of the emblem is illuminated, thus generating indirect illumination of the emblem.
    [0011] For example, US20150239390 describes an emblem illuminated by means of lateral illumination at the periphery of the emblem. This emblem is made up of a body, a lighting device and a controller. The body of the emblem is configured to be placed on a part of a vehicle, and has a translucent part (60) arranged on the sides and an opaque part, while the lighting device is configured and arranged to scatter the light emitted by a plurality of light sources (84) distributed at different points through the translucent part (60) of the body of the emblem. In order to carry out the lateral illumination through the periphery of the emblem, this US patent uses a light guide for the internal light transmission from the different point light sources (84), the light guide being an additional and expensive component. This USA patent has the great drawback that it does not describe any element that controls the homogenization of the outgoing light created by different point light sources, so that inevitably the user perceives different light intensities in different areas of the emblem: darker areas ( where there is no light source nearby) and lighter areas (where there is a light source nearby). Therefore, it is evident that this US patent fails to generate a The same light intensity in each and every one of the different zones that make up the perimeter of the emblem (regardless of whether the section of the emblem is close to a light source or not).
    [0013] In addition, it must be taken into account that the emblems have very reduced thicknesses, which makes it even more difficult to homogenize the outgoing light, since the space between the light sources and the front part of the emblem where the light comes out is very limited . For reference, the distances between the light sources and the front of the emblem may be in the order of 0.5 to 1 mm. Under these tight space conditions, in the devices known hitherto, the light generated by point light sources is concentrated in the areas close to a light source.
    [0015] This previously described problem of uniformly distributing the outgoing light throughout the perimeter of the emblem by having point light sources distributed in the emblem, acquires a special relief in those cases in which the logo of the emblem presents inhomogeneous and / or complex geometries, being able to present areas of greater width, narrower areas, corners, etc., making even more homogeneous lighting of the perimeter of the emblem more difficult.
    [0017] Furthermore, in those cases in which the emblems have narrow "logo" geometries (that is, in which the distance between the light source and the perimeter of the emblem is small), this problem of having a variable light intensity with areas of Excessive light and insufficient light areas are accentuated.
    [0019] In view of all the aforementioned, there is a clear need for an emblem illuminated by its periphery indirectly to be installed in a motor vehicle, which allows an external observer to perceive the same intensity of light throughout the perimeter of the emblem, it is say without distinguishing sections with a higher outgoing light intensity and sections with a lower outgoing light intensity due to being near or far from a light source. In addition, the illuminated emblem is required to not use light guides as they are costly items; and have maximum simplicity, easy manufacture, easy assembly of parts, and a minimum number of components.
    [0021] Description of the Invention
    [0023] The object of the present invention is to provide an illuminated emblem for a motor vehicle, suitable to be preferably installed on a part of the exterior body of a motor vehicle, which solves the aforementioned drawbacks and has the advantages described below.
    [0024] According to a first aspect, the present invention provides an illuminated emblem for a vehicle, of the type that indirectly illuminates the perimeter of the emblem, characterized by comprising:
    [0026] - a front element in the form of a logo, where the front element is opaque, and the inner face of the front element is a light reflecting color;
    [0028] - a rear shell for affixing the emblem to a part of the vehicle body, where the rear shell is opaque, and where the inner surface of the rear shell is light reflecting;
    [0030] - a light diffusing filter arranged between the front element and the rear chamber, where the interior space defined by the front element, the rear housing and the diffusing filter define a cavity, where the contour of the diffusing filter reproduces the same perimeter shape as the perimeter edge of the front element, where the diffuser filter is translucent and is configured to allow light extraction from the cavity; and
    [0032] - at least one lighting circuit arranged inside the cavity, where the at least one lighting circuit comprises a plurality of light sources;
    [0034] where the inner face of the front element and the inner surface of the rear housing generate an internal reflection chamber of the light beams emitted by the plurality of light sources, and where light escapes from the cavity only by the diffuser filter in the direction side, generating indirect illumination of the emblem's perimeter on the vehicle body.
    [0036] Thanks to the advantageous creation of this internal reflection chamber of the light beams, the light beams are constantly bouncing internally as they are reflected by hitting the reflective interior walls of the rear case and the also reflective front element. , thereby filling the entire cavity with light and managing to distribute the light more evenly throughout the perimeter portion of the emblem. The light that is constantly bouncing inside the internal reflection chamber escapes from said cavity only through the perimeter portion of the translucent diffuser filter, that is, through a portion of the perimeter of the emblem, in an outward direction.
    [0037] Preferably, the at least one lighting circuit is also of a light reflecting color. In this way, the surface of the at least one lighting circuit facing into the cavity can also function as a light reflector, thereby creating an internal reflection chamber for the light beams emitted by the plurality of light sources in the space defined by the inner face of the front element, the inner surface of the rear housing and at least the surface of the lighting circuit facing the interior of said cavity.
    [0039] A possible example of embodiment of the at least one lighting circuit is a printed circuit board, in which different light sources are fixed on it by any known means. The lighting circuit or printed circuit board will be configured to supply and activate the plurality of light sources based on different orders.
    [0041] In a first exemplary embodiment, the lighting circuit is manufactured fixed to the base of the rear housing and with the light sources pointing upwards (i.e. towards the front element).
    [0043] And in a second embodiment, the lighting circuit is manufactured fixed on the inside of the front element and with the light sources pointing downwards (that is, towards the base of the rear housing).
    [0045] Preferably, the plurality of light sources are arranged distributed in different specific positions in the at least one lighting circuit. These specific positions are chosen based on the particular geometry of each logo. A possible arrangement of the same can be arranged aligned in one of the sections that make up the logo.
    [0047] With respect to the plurality of light sources, each one can be of any desired color or a combination of colors, depending on the requirements of each particular case. The light source may include any form of known light source. The light emitting diode (LED) is chosen as the preferred light source, although any other form of lighting configured to emit light can be used, such as fluorescent lighting, organic LEDs (OLED), polymer LEDs (PLED), or lighting solid state.
    [0049] Regarding the reflective color of the light, it is chosen, preferably, between: white or metallic. Both colors have been found to be satisfactory to optimally reflect (i.e. all or practically all) light beams. If the white color is selected, which reflects all light without absorbing any color from the light spectrum, a white camera is created internal reflection; and if it is metallic, then a metallic internal reflection chamber.
    [0051] Reflection of light is understood to mean when light reaches an object and rebounds or reflects, in part or in whole, from that object. Light can be reflected in a specular (direct) or diffuse manner. produces when light reflects on a smooth or polished surface.
    [0053] The present invention seeks to create a constant reflection of light rays within the rather diffuse type internal reflection chamber, whereby at least the inner face of the front element and / or the inner surface of the rear housing and / or optionally, the at least one surface of the lighting circuit may be surfaces that are not smooth or polished, that is, with textures, to favor diffuse reflection. Therefore, according to a preferred embodiment of the invention, at least one of the interior surfaces of the walls of the rear housing and / or the at least one interior face of the front element presents a roughness in its surface finish, so that when the incident light on this rough surface (s) is scattered in all directions randomly, thereby making the outgoing light more uniform. In other words, it is possible to enhance the fact that when the light beams hit these rough surfaces they are reflected in all directions, and therefore the homogeneity of the light beams inside the camera is improved and therefore the uniformity of the intensity of outgoing light around the perimeter of the emblem.
    [0055] Preferably, this rough surface (s) does not follow a predefined pattern, but instead follows a random distribution, thus favoring the diffusion of light beams. Furthermore, in order to increase the homogenization efficiency of the light distribution, the rough texture is generated on a microscopic or lower scale. The proprietor has observed that, preferably, the rough texture ranges between 10qm and -10qm between the highest and lowest points of the section.
    [0057] Regarding the light diffusing filter, it is preferably made of a thermoplastic polymer transparent enough for light to pass through it. A possible thermoplastic polymer that can be used is polymethylmethacrylate (PMMA) with a treatment with particles inside, which have the ability to transmit incident light in all directions, thereby achieving a uniformly illuminated light diffusing filter surface . The greater the light diffusion, the less light transmission and vice versa. Equally, to greater homogeneity, less efficiency (emitted light) and vice versa. The thickness (i.e. height) of the filter Light diffuser also influences the degree of light diffusion on the emblem.
    [0059] "Light scattering" is understood to be the phenomenon by which a light ray travels through a material without being absorbed, but is subjected to repeated scattering effects that change the direction of its path, resulting in a randomness of direction. transmission light beam.
    [0061] "Light transmission" is understood as the phenomenon where light passes through a surface or object. Transmission can be direct (when light passes through an object and there is no change in direction or quality of that light) or diffuse (when light passes through a transparent or semi-transparent textured object.) In this invention the light transmission in the light diffusing filter is intended to be a "diffuse transmission", so that the outgoing light from the emblem is deviated in many directions. In this way, the light transmitted by the light diffusing filter is softer, with less contrast, less intense, and generates a smoother transition between light and shadow (compared to direct light).
    [0063] As an example, the diffuser filter is configured by a profile that follows the same shape as the perimeter contour of the front element of the emblem. Possible dimensions of the light diffusing filter are:
    [0064] - Maximum height (maximum thickness) of the light diffusing filter (that is, the height between the upper surface of the rear housing and the front element): between 1 and 2.5mm. - Thickness of the light diffusing filter (in the direction of the light beam exit): between 1 and 2.5mm.
    [0066] According to a possible embodiment of the back shell, it is made of a rigid material, and consists of a flat base and also flat side walls. As previously discussed, the interior faces of the base and side walls will be flat and can be rough, so that the reflection of light rays on said surfaces is diffuse.
    [0068] According to a possible embodiment of the front element, it is made of a rigid material, where on the face seen by the user it comprises the logo with the desired finish, preferably with chrome finishes. As previously discussed, the flat inner face of the front element may have roughness, and the shape of the front element is substantially the logo shape, which may have inhomogeneous or complex geometries.
    [0069] According to a preferred embodiment of the invention, in order to further increase the homogeneity and distribution of the outgoing light throughout the perimeter of the emblem, the emblem further comprises at least one light beam opening geometry, configured to open the cone of light generated in at least one direction, so as to further increase the diffusion of light beams into the cavity. In this way, the provision of these geometries (which may consist, for example, of a cylinder) distributes the light even better within the chamber.
    [0071] Preferably, the emblem comprises more than one light beam opening geometry, each of which is arranged in a different position on the emblem, that is, they are distributed at specific positions on the emblem, depending on the width and the particular geometry that each section of emblem has.
    [0073] The at least one light beam aperture geometry is preferably arranged between one of the plurality of light sources and the front element (in the depth axis Z of the section of the emblem), and between one of the plurality of light sources and the diffuser (on the transverse axis Y of the section of the emblem).
    [0075] According to a possible embodiment of the invention, the emblem has a light beam opening geometry for each light source, where each opening geometry is arranged on the transverse axis Y facing a source of the plurality of light sources , that is to say on the same line (Z axis) with a light source.
    [0077] Preferably, the at least one light beam aperture geometry can be chosen, for example, from: cylinder-shaped or triangular prism structures, to open the light field in a particular direction; or pyramid-shaped structures with a square or rectangular base, or a cylindrical pyramid, to open the cone of light in all directions.
    [0079] In addition to the light beam opening geometries, other geometries can also be arranged on the emblem, specifically light beam shielding geometries that generate small barriers near the diffuser filter to prevent too much light from coming out of that area (especially in areas where the light sources and diffuser are close, to avoid a highly illuminated area being seen by the external observer). Preferably, the at least one shielding geometry of the light beam is also arranged between one of the plurality of light sources. light and diffuser filter.
    [0081] In the same way as the light beam opening geometries, the light beam shielding geometries are arranged at specific positions on the emblem. These specific positions are chosen based on the particular geometry of each logo. Preferably, the at least one light beam opening geometry is arranged facing one source of the plurality of light sources.
    [0083] Preferably, the at least one opening geometry of the light beam can be chosen, for example, from: a flat wall, a cylindrical structure or a triangular prism. The height of said shielding wall can be constant or it can be variable (greater height coinciding with the center of the cone of the light source and decreasing as we move away from the light source.
    [0085] As described above, the specific positions of each shielding geometry and each light beam opening geometry are chosen based on the particular geometry of each logo. Specifically, the width of the emblem section is one of the main factors for determining the position and total number of shielding geometries. It has been found by the owner that in the "narrow" areas of the emblem it is convenient to have one or more shielding geometries and, on the other hand, in "wide" areas it is not so necessary. For reference, a "narrow" area of the emblem is an area where the distance between the light source and the perimeter diffuser filter is less than 20mm.
    [0087] With reference to the specific position of each shielding geometry with respect to the axis transverse to the axis of alignment of the light sources (X axis), the shielding geometries can be arranged near the light diffusing filter (i.e. near the perimeter edge) or close to a light source (that is, in the part closest to the X axis).
    [0089] The main advantages derived from the present invention with respect to other solutions known in the state of the art are:
    [0090] 1. Indirect lighting and high homogeneity.
    [0091] 2. Fewer components in the emblem.
    [0092] 3. Reduced thickness of the emblem.
    [0094] I. Brief description of the figures
    [0095] For a better understanding of what has been stated, some drawings are attached in which, schematically and only by way of non-limiting example, practical cases of different embodiments are represented.
    [0097] Figure 1 represents an exploded view of a first embodiment of a part of an emblem according to the present invention, where the different main components that make up the emblem are observed.
    [0099] Figure 2 schematically represents a cross-sectional view of a concrete section of a part of the emblem according to a second embodiment of the invention, in which the arrangement of the different components is seen.
    [0101] Figure 3 schematically represents a cross-sectional view of a different section of a part of the emblem according to a third embodiment of the invention, in which the arrangement of the different components is seen.
    [0103] Figure 4 represents a front view of the second embodiment of the complete emblem of the invention, where three different cut lines are included: A-A, B-B and C-C.
    [0105] Figure 5 represents a rear view of the same embodiment as Figure 4, but in this case illustrating only the internal face of the front element, in which there are light opening geometries and light beam shielding geometries.
    [0107] Figure 6 represents a sectioned view through A-A of Figure 4, showing a concrete longitudinal section of the lower section of the emblem (which we will call from now on "narrow section" due to the fact that it has little width).
    [0109] Figure 7 represents a sectioned view through B-B of Figure 4, where a concrete cross section of the "narrow section" of the emblem is observed.
    [0111] Figure 8 represents a sectioned view through C-C of Figure 4, where a concrete cross-section of the other section of the emblem of greater width is observed (which we will call from now on "wide section").
    [0113] Figure 9 schematically represents a partial sectional view of two possible geometries opening of the different light beam, where it is intended to show the paths carried out by the different light rays incident on and reflected from these geometries.
    [0115] Figure 10 schematically represents a sectional view of an example of two different shielding geometries, where it is intended to show the paths that the different light rays incident on said geometries and reflected from them.
    [0117] II. Description of some examples of realization
    [0119] Embodiment examples of the present invention are described below with reference to Figures 1 to 10.
    [0121] Referring to Figure 4, a possible embodiment of the complete emblem is illustrated, consisting of two distinct emblem parts that when joined together form the complete emblem. The rest of the Figures refer only to the upper part (1) of the emblem. In this Figure 4 the configuration of the upper part (1) of the emblem is shown, which in turn is formed by a "narrow" lower section (10) and a "wide" upper section (11) that are joined in a junction area (12). The longitudinal axis (X1) of the "narrow" section (10), the transverse axis (Y1) of said "narrow" section (10), and with respect to the "wide" section (11) the longitudinal axis (X2) are also represented. and the transverse axis (Y2) The represented emblem would be mounted on an exterior surface of the vehicle and seen from the perspective of an external observer.
    [0123] Figure 1 shows, from top to bottom, a first example of embodiment of a part of the emblem (1): the front element (2) in the shape of the upper part of the logo, the light diffusing filter (4) for allow the passage of light but at the same time achieve maximum homogeneity of the light, the lighting circuit (6) and the rear housing (3). In this example of embodiment, the lighting circuit (6) comprises a total of 12 light sources (7) distributed equidistant along the narrow section and the wide section of the lighting circuit (6), of which 5 of them are arranged in the narrow section (10) of the emblem (1) aligned following the longitudinal axis (X1) which is substantially parallel to the edges of said narrow section of the lighting circuit (6), 6 of them are arranged in the wide section (11) aligned along the longitudinal axis (X2) and the last one in the joint area (12) of both sections. In this example, the light diffusing filter (4) has a profile with an outline that reproduces the same perimeter shape as the perimeter edge of the front element (2) and has a hole inside it, and where the narrow section of the filter light diffuser (4) has four extensions (9) of union between different points of two portions of the perimeter edge. In this first Figure 1 it can be seen how all the components of part (1) of the emblem have the same external shape.
    [0125] In this first example of embodiment of Figure 1, the lighting circuit (6) is fixed to the inner face of the base (3a) of the rear casing (3) and the light sources (7) pointing upwards (it is say in the Z axis direction). The extensions (9) of the diffuser filter (4) perform the function of light beam opening geometry and / or light beam shielding geometries, as will be described later. Said geometries are injected into the light diffusing filter itself (4), obtaining the three components of a single injection process. The manufacturing process of the emblem (1) according to this first embodiment is preferably as follows:
    [0126] - Inject the front element (2).
    [0127] - Inject the rear casing (3).
    [0128] - Inject the light diffusing filter (4), obtaining from the same mold the light beam opening geometries and / or light beam shielding geometries, where required.
    [0129] - Fix the lighting circuit (6) with the light sources (7) in the base of the rear casing (3), by means of any known mechanical adhesive process. - Fix the light diffusing filter (4) to the rear housing (3), by means of any known mechanical adhesive process.
    [0130] - Fix the front element (2) to the housing-diffuser filter, preferably by means of vibration welding.
    [0132] In the second example of embodiment shown in Figure 2, the lighting circuit (6) is fixed to the inner face of the base (3a) of the rear casing (3) and the light sources (7) are oriented pointing towards above (i.e. in the Z axis direction). It has a light beam opening geometry (8a) and two light beam shielding geometries (8b) all arranged on the inner part (2b) of the front element (2). It is observed how the light beam opening geometry (8a) is arranged facing the light source (7). On the other hand, it is observed how each shielding geometry of the light beam (8b) is arranged between the diffuser filter (4) and the internal reflection cavity. In this case the geometries (8a) and / or (8b) are integrated with the front element (2). The manufacturing process of the emblem (1) according to this second embodiment is preferably as follows:
    [0133] - Inject the front element (2), obtaining from the same mold the geometries (8a) and / or (8b) (if they exist).
    [0134] - Inject back shell (3).
    [0135] - Overinject the light diffusing filter (4) to the rear housing (3).
    [0136] - Fix the lighting circuit (6) with the light sources (7) in the base of the rear casing (3), by means of any known mechanical adhesive process. - Fix the front element (2) to the housing-diffuser filter, preferably by means of vibration welding.
    [0138] In the third example of embodiment shown in Figure 3, the lighting circuit (6) is fixed on the inside of the front element (2) and with the light sources (7) oriented pointing downwards (i.e. towards the base (3a) of the rear housing (3), or in the opposite direction to the Z axis). It has two light beam shielding geometries (8b) arranged on the inner part (2b) of the front element (2) and a light beam opening geometry (8a) arranged on the inner surface (3a) of the base of the back cover (3). In the same way as in the previous embodiment, it can be seen how the light beam opening geometry (8a) is arranged facing the light source (7). On the other hand, it is observed how each shielding geometry of the light beam (8b) is arranged between the diffuser filter (4) and the internal reflection cavity. The process of obtaining this third embodiment is preferably as follows:
    [0139] - Inject the front element (2), obtaining the geometries (8b) (if any) from the same mold.
    [0140] - Inject the rear casing (3), obtaining the geometries (8a) (if any) from the same mold.
    [0141] - Overinject the light diffusing filter (4) to the rear housing (3).
    [0142] - Fix the lighting circuit (6) on the inner base of the front element (2), by means of any known mechanical adhesive process.
    [0143] - Fix the front element (2) to the light diffusing filter (4), preferably by means of vibration welding.
    [0145] As can be seen in Figure 5, corresponding to the embodiment example in Figure 4, the front element (2) comprises respective light beam opening geometries (8a) aligned with each light source (7) and additionally, in the "narrow section" it comprises two light beam shielding geometries (8b) aligned with each light source (7). The light opening geometries (8a) open the field in the direction of alignment of the light sources , that is, in the direction of the X1 axis in the "narrow section" and in the direction of the X2 axis in the "wide section". In this example in Figure 5, the distance between the ends of the front element (2) (ie the width of the "section width ”) where it is not necessary to make a shield is 27 mm, while the distance between the ends of the emblem (that is, the width of the“ narrow section ”) where shielding geometries are required is 13 mm.
    [0147] In Figure 9, two possible different light beam opening geometries (8a) are schematically represented, where the corresponding paths carried out by the different light rays incident on said geometries (8a) and reflected from them in the forward direction are exemplified. outside, opening the light field in the direction of alignment of the light source (in this case in the X1 direction). The light beam opening geometry (8a) arranged on the left would be equivalent to a triangular prism and the light beam opening geometry (8a) arranged on the left would be equivalent to a semi-circular base cylinder.
    [0149] Figure 6 shows a first section of the "narrow section" of the emblem (1) which has five different light sources (7) arranged in a row, with a respective light opening geometry (8a) arranged facing each other. of said light sources (7) and opening the field of light beams in the direction of alignment of the light sources.
    [0151] Figure 7 shows a second section of the "narrow section" of the emblem (1), where there is a light source (7), and two shielding geometries of the light beam (8b) are also seen, arranged separately from each other and a light beam opening geometry (8a) arranged facing said light source (7), and where it is perceived that all the geometries (8a, 8b) are manufactured integrated into the front element itself (2). Manufacturing method is to manufacture the geometries (8a, 8b) by injection in the same injection mold as the front element (2).
    [0153] And in Figure 8 a third section of the "wide section" of the emblem (1) is observed, where there is also a light source (7), but in this case without shielding geometries and with a light beam opening geometry (8a) arranged facing said light source (7), and where it is perceived that the light opening geometries (8a) are also manufactured integrated into the front element itself (2). In this "wide section" of the emblem shielding geometries are not provided since the distance between a light source (7) and the perimeter edge of the emblem is long enough that it is not necessary to shield the outgoing light. The light beams generated by the light source (7) have been reflected, mostly, a multitude of times and in a multitude of directions inside the reflection cavity before being extracted by means of the diffuser filter (4), favoring greater homogeneity in the perimeter lighting of the emblem.
    [0154] Figures 2, 3, 6, 7, 8 and 10 show the cavity (5), which functions as an internal reflection chamber for the light beams emitted by the plurality of light sources (7). Said cavity (5) is defined by the front element (2), the rear casing (3) and the light diffusing filter (4). Additionally, when the surface of the lighting circuit (6) comprising the light sources (7) is of a light-reflecting color, said surface also delimits the internal reflection cavity (5).
    [0156] In the first and second examples of embodiment (that is to say in Figures 1 and 2), the height of the internal cavity (5) (that is to say from the surface (6a) of the circuit (6) to the interior surface (2a) of the front element (2)) is between 2.5 and 4mm. In these same examples of embodiment, the distance between the upper part of the light sources (7) and the inner surface of the front element (2) is between 0.7 and 1mm.
    [0158] Figure 10 schematically shows the path of some of the light beams inside the cavity (5), which are in constant internal rebound since they are reflected when hitting the interior walls (3a, 2b) of the housing (3) and the front element (2) respectively. These light beams escape from the cavity (5) only through the diffuser filter (4) in a lateral direction, which is the only translucent part, that is, through a lower portion of the perimeter of the emblem (1). It should be taken into account that in this Figure 10 only the light beams emitted by this represented light source (7) have been represented, so that the light beams that are constantly bouncing once they hit the casing have not been represented. rear (3), on the front element (2) or on the circuit (6). A beam of light has been shown in a dashed line that comes out of the light source (7) and that bounces off the front element (2b), later on the base (3a) of the casing (3) and then exits through the filter diffuser (4). Also another beam of light in a discontinuous line with an intermediate point where the rebound occurs in the lighting circuit (6). Additionally, a continuous line light beam emitted by the light source (7) and directly contacting the diffusing filter (4) has been shown, consequently being extracted from the cavity (5).
    [0160] In this Figure 10, two different examples of shielding geometries have also been represented (8b): on the left a cylinder with a semicircular base and on the right a cylinder with a triangular base, it can be any other geometry, even a side wall that partially covers the diffuser outlet. It can be seen how these two shielding geometries (8b) bounce the light beams (represented by solid arrows) again towards the intermediate part of the cavity (5), preventing excessive light beams from contacting the filter. diffuser (4) and are removed from the cavity (5) in the areas closest or closest to the light source (7).
    [0162] Although reference has been made to a specific embodiment of the invention, it is evident to a person skilled in the art that the illuminated emblem for a described vehicle is susceptible of numerous variations and modifications, and that all the mentioned details can be replaced by others technically equivalent, without departing from the scope of protection defined by the appended claims.
    权利要求:
    Claims (14)
    [1]
    1. An emblem (1) with lighting for a vehicle, characterized in that it comprises:
    - a front element (2) in the form of a logo, where the front element (2) is opaque, and the inner face (2b) of the front element (2) is of a light reflecting color;
    - a rear casing (3) to fix the emblem (1) to a part of the vehicle body, where the rear casing (3) is opaque, and where the inner surface of the rear casing (3) is of a reflective color of the light;
    - a light diffusing filter (4) arranged between the front element (2) and the rear chamber (3), where the interior space defined by the front element (2), the rear housing (3) and the diffusing filter define a cavity (5), where the contour of the diffuser filter (4) reproduces the same perimeter shape as the perimeter edge of the front element (2), where the diffuser filter (4) is translucent and is configured to allow light extraction from the cavity (5); and
    - at least one lighting circuit (6) arranged inside the cavity (5), where the at least one lighting circuit (6) comprises a plurality of light sources (7);
    where the inner face (2b) of the front element (2) and the inner surface of the rear casing (3) generate an internal reflection chamber of the light beams emitted by the plurality of light sources (7), and where the Light escapes from the cavity (5) only through the diffuser filter (4) in the lateral direction, generating indirect illumination of the perimeter of the emblem (1) on the body of the vehicle.
    [2]
    2. The emblem (1) according to claim 1, wherein the at least one lighting circuit (6) is of a light reflecting color.
    [3]
    3. The emblem (1) according to claim 1 or 2, wherein the light-reflecting color is chosen from: white or metallic.
    [4]
    The emblem (1) according to claim 1, wherein the diffuser filter (4) is made of PMMA with a treatment with particles inside that reflect incident light in all directions.
    [5]
    5. The emblem (1) according to claim 1, comprising at least one light beam opening geometry (8a) configured to open the generated light cone in at least one direction, so as to increase the diffusion of the light beams inside the cavity (5).
    [6]
    The emblem (1) according to claim 5, wherein the at least one light beam opening geometry (8a) is arranged facing one of the plurality of light sources (7).
    [7]
    The emblem (1) according to claim 6, wherein the at least one light beam opening geometry (8a) can be chosen from: cylinder-shaped structures or triangular prism, to open the light field in a specific direction; or pyramid-shaped structures with a square or rectangular base, or a cylindrical pyramid, to open the cone of light in all directions.
    [8]
    The emblem (1) according to claim 5, 6 or 7, in which the at least one lighting circuit (6) is fixed in the rear casing (3), so that the plurality of light sources (7) are arranged pointing towards the front element (2), and where the at least one light beam opening geometry (8a) is arranged on the inner face (2b) of the front element (2).
    [9]
    9. The emblem (1) according to claim 5, 6 or 7, wherein the at least one lighting circuit (6) is fixed on the front element (2), so that the plurality of light sources (7) are arranged pointing towards the rear case (3), and where the at least one The opening geometry of the light beam (8a) is arranged on the inner surface of the rear housing (3).
    [10]
    The emblem (1) according to claim 1, comprising at least one light beam shielding geometry (8b) configured to reduce the amount of light escaping through the diffuser filter (4), where the at least a light beam shielding geometry (8b) is arranged between one of the plurality of light sources (7) and the diffuser filter (4).
    [11]
    11. The emblem (1) according to claim 8, wherein the at least one light beam shielding geometry (8b) can be chosen from: a flat wall, a cylindrical structure or a triangular prism.
    [12]
    12. The emblem (1) according to claim 10 or 11, wherein the at least one light beam shielding geometry (8b) is positioned in the cavity (5) based on the distance between one of the plurality of light sources (7) and the diffuser filter (4).
    [13]
    13. The emblem (1) according to claim 1, wherein at least one of the interior surfaces of the walls of the rear casing (3) or the at least one interior face (2b) of the front element (2) It has a roughness in its surface finish, so that the light beams incident on said rough surfaces are reflected in all directions.
    [14]
    14. The emblem (1) according to any one of the preceding claims, wherein the light sources (7) are LEDs.
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    同族专利:
    公开号 | 公开日
    EP3674143A1|2020-07-01|
    ES2769903B2|2021-05-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20060291233A1|2005-06-22|2006-12-28|Kwon Young C|Illuminated exterior decorative device|
    US20120182722A1|2011-01-14|2012-07-19|Ming-Yuan Wu|Illuminated vehicle emblem|
    US20120256543A1|2011-04-11|2012-10-11|Cmarlite, Llc|Illuminated devices attached to vehicles|
    US20180334094A1|2017-05-22|2018-11-22|Ford Global Technologies, Llc|Illuminating vehicle assembly and illumination method|
    JP4261378B2|2004-02-02|2009-04-30|サカエ理研工業株式会社|Light emitting display device for vehicle|
    US7344902B2|2004-11-15|2008-03-18|Philips Lumileds Lighting Company, Llc|Overmolded lens over LED die|
    JP5095029B1|2012-06-26|2012-12-12|株式会社ジュナック|LED emblem for vehicles|
    JP5951391B2|2012-07-24|2016-07-13|スタンレー電気株式会社|Emblem light emitting device|
    US20150239390A1|2014-02-24|2015-08-27|Nissan North America, Inc.|Illuminated Emblem|
    法律状态:
    2020-06-29| BA2A| Patent application published|Ref document number: 2769903 Country of ref document: ES Kind code of ref document: A1 Effective date: 20200629 |
    2021-05-24| FG2A| Definitive protection|Ref document number: 2769903 Country of ref document: ES Kind code of ref document: B2 Effective date: 20210524 |
    优先权:
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    ES201831295A|ES2769903B2|2018-12-28|2018-12-28|ILLUMINATED EMBLEM FOR A VEHICLE|ES201831295A| ES2769903B2|2018-12-28|2018-12-28|ILLUMINATED EMBLEM FOR A VEHICLE|
    EP19216143.8A| EP3674143A1|2018-12-28|2019-12-13|Illuminated emblem for a vehicle|
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