• 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:
    An optical unit (BO) is adapted to equip a vehicle and comprises first and second lighting devices adapted to deliver photons, a first reflector (R1) adapted to transfer photons delivered by the first lighting device to a face before, a second reflector (R2) placed in front of a selected part of the first reflector (R1) and adapted to transfer photons delivered by the second lighting device to the front face, and a support plate placed above the first one ( R1) and second (R2) reflectors and comprising an inner face on which are secured sources of the first and second lighting devices in selected locations.
    公开号:FR3036773A1
    申请号:FR1554731
    申请日:2015-05-27
    公开日:2016-12-02
    发明作者:Rodolphe Peron
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    [0001] FIELD OF THE INVENTION The invention relates to vehicle optical blocks that fulfill at least two photometric functions. Here, the term "photometric function" is understood to mean a light function provided by a lighting device and selected from the exterior lighting of a vehicle, the external signaling of a vehicle and a decorative light effect of a vehicle. Many vehicle optical blocks, possibly of the automotive type, comprise at least two lighting devices providing different photometric functions. For example, a rear light may provide a brake light function and a position light function (or lantern or night light) and / or a daylight function (or DRL (for "Daytime running Light"). (or Lamp) "- illuminated warning light automatically when the vehicle is put into operation during the day). These lighting devices are generally independent of one another and therefore have their own light sources mounted on their own printed circuit board (PCB) cards which also have their own control means. In addition, these lighting devices are generally placed next to one another in an optical block and thus provide photometric functions close to one another, but whose illumination zones are not interleaved (ie one not surrounding the other at least partially). As a result, the optical blocks are bulky (at least in a transverse direction) and expensive. There are certainly optical blocks in which photometric functions are nested. But they have an increased longitudinal footprint and a significantly more complex internal architecture due to the lack of pooling of elements of their lighting devices. The purpose of the invention is, in particular, to improve the situation. It proposes for this purpose an optical unit adapted to equip a vehicle and comprising at least first and second lighting devices respectively comprising at least a first source of 5 photons and at least a second source of photons. This optical block is characterized in that it also comprises: a first reflector suitable for transferring photons delivered by each first source to a front face; a second reflector placed in front of a selected part of the first reflector and suitable for transferring photons delivered by each second source to the front face, and - a support plate placed above the first and second reflectors and comprising an inner face on which are secured the first and second sources in selected locations.
    [0002] The use of reflectors placed in front of each other (of course, with different dimensions), and supplied with photons from above by sources installed on a common support plate, allows the photometric functions to be nested together. ensured by the lighting devices, and thus reduce the size and cost of the optical unit.
    [0003] The optical unit according to the invention may comprise other characteristics that may be taken separately or in combination, and in particular: its first reflector may comprise a first upper wall supporting its second reflector; > its second reflector may comprise a second upper wall provided with at least two first holes, and the first upper wall may comprise at least two coupling studs adapted to pass through the first holes to ensure a coupling between the first and second reflectors; - Its support plate may comprise at least two second holes adapted to be traversed by at least one of the coupling pads to allow coupling with the first and second reflectors; the coupling pins may comprise free ends that are riveted once the coupling has been formed between the first and second reflectors and the support plate, so that the latter are firmly fixed to one another; its second reflector may be placed in front of a central part of its first reflector, so that the photons coming from the first lighting device partially surround the photons coming from the second lighting device at its front face; Its second reflector may be able to transfer the photons delivered by the second lighting device to a substantially rectangular zone of its front face, and its first reflector may be able to transfer the photons delivered by the first lighting device to a generally U-shaped front surface area surrounding the substantially rectangular area on three sides; each first source and / or each second source may be a light diode, for example of the electroluminescent or laser type. The invention also proposes a vehicle, possibly of automotive type, and comprising at least one optical block of the type of that presented above. Other features and advantages of the invention will appear on examining the detailed description below, and the accompanying drawings (obtained in CAD / CAD, hence the apparently discontinuous character of certain lines), in which: FIG. 1 schematically illustrates, in a perspective view on the front side side, an exemplary embodiment of an optical block according to the invention, FIG. 2 schematically illustrates, in a perspective view of the front side, examples of production of first and second reflectors and support plate intended, once assembled, to constitute a functional unit suitable for equipping the optical block of FIG. 1; FIG. 3 schematically illustrates, in a perspective view of the side of FIG. the inner face, the support plate of FIG. 2; FIG. 4 schematically illustrates, in a perspective view of the front side, the first and second reflectors of FIG. 5 schematically illustrates, in a perspective view of the front side, the functional assembly obtained after assembly of the first and second reflectors and the support plate of FIG. 2. The object of the invention is in particular to propose an optical block BO intended to equip a vehicle and making it possible to provide at least two photometric functions chosen from the exterior illumination of the vehicle, the external signaling of the vehicle and a decorative light effect of the vehicle. vehicle. In what follows, it is considered, by way of non-limiting example, that the optical block BO is intended to equip a motor vehicle, such as a car. But the invention is not limited to this type of vehicle.
    [0004] Indeed, it concerns any type of vehicle comprising at least one optical unit offering at least two photometric functions. Furthermore, it is considered in the following, by way of non-limiting example, that the optical block BO is a rear light. But the invention is not limited to this type of optical block. Indeed, it also relates to the headlights 20 (or front projectors). FIG. 1 schematically illustrates an exemplary non-limiting embodiment of an optical block BO according to the invention. This optical block BO comprises a housing BB, fixedly housing a functional assembly EF (illustrated in FIG. 5), and an ice-cream, which together delimit an internal space. The BB housing is for example made by molding a plastic material (or synthetic). The ice can be made of plastic (or synthetic) transparent (at least in selected places) or glass.
    [0005] As illustrated (at least partially) in FIGS. 2 and 5, the functional assembly EF of an optical block BO according to the invention comprises at least first D1 and second D2 lighting devices, first R1 and 3036773. second R2 reflectors, and a support plate PL. This functional assembly EF, once its elements assembled, is fixedly secured to the BB housing. The first lighting device D1 comprises at least a first source SL1 capable of delivering photons. For example, each first source SL1 may be a light diode, for example of the electroluminescent (or LED) or laser type. Note that in the non-limiting example illustrated in Figure 3 the first lighting device D1 comprises twelve first sources SL1 (nine of which are visible). But it could have a number different from twelve and at least greater than or equal to one (1). This first lighting device D1 is responsible for filling at least one photometric function. In the case of a rear light, this photometric function may, for example, be a position light function (or lantern or night light). But it could also be a stop light function or a daytime running light function (DRL) or a direction change indication function or a reversing light function or still a decorative light effect. The second lighting device D2 comprises at least a second source SL2 capable of delivering photons. For example, each second source SL2 may be a light diode, for example of the electroluminescent (or LED) or laser type. Note that in the nonlimiting example illustrated in Figure 3 the second lighting device D2 comprises two second sources SL2. But it could include a number different from two and at least greater than or equal to one (1). This second lighting device D2 is responsible for filling at least one photometric function. In the case of a rear light, this photometric function may, for example, be a stop light function. But it could also be a position light function (or lantern or still pilot) or a daytime running light function (or DRL) or a function of indication of change of direction or 'a reversing light function or a decorative light effect. The first reflector R1 is adapted to transfer photons delivered by each first source SL1 to a front face of the optical block BO. Here, the term "front face" refers to the face of the optical block BO through which the photons of the photometric functions emerge. The second reflector R2 is placed in front of a selected portion of the first reflector R1 and is adapted to transfer photons delivered by each second source SL2 to the front face of the optical block BO. Therefore, this second reflector R2 has dimensions strictly smaller than those of the first reflector R1 to allow the passage of photons that the latter (R1) reflected to the front face of the optical block BO.
    [0006] Preferably, the first reflective R1 and R2 are made by molding a plastic (or synthetic) material, with the addition of a reflective coating on their inner face which is dedicated to the transfer of photons. For example, they can be made of polycarbonate (or PC) then metallized, or white PC.
    [0007] The support plate PL is placed above the first reflective R1 and R2 R2 (see FIGS. 2 and 5) and comprises an internal face FI on which each first source SL1 and each second source SL2 are secured in selected locations (see FIG. Figure 3). Here, the term "internal face" refers to the face of the support plate PL 20 which is oriented towards the first and second reflective R1 and R2, and the "external face" (FE) to the face of the support plate PL which is opposed to its inner face FI and therefore oriented outwardly of the BB housing. By placing the second reflector R2 in front of a selected portion of the first reflector R1, and supplying photons from above the first reflective R1 and R2 R2 by positioning the common PL support plate which supports at least the sources SL1 and SL2. the illumination zones of the photometric functions provided by the first D1 and second D2 lighting devices can advantageously be interleaved, and the overall bulk and the cost of the optical block BO can be reduced.
    [0008] In addition, this makes it possible to completely mask the securing means of the second reflector R2 while giving the impression that it is, in a way, "levitation" (or suspended). For example, the support plate PL may be a circuit board 3036773 7 printed (PCB type ("Printed Circuit Board")). This advantageously makes it possible to completely define the first D1 and second D2 lighting devices on and in the support plate PL, and in particular their sources SL1 and SL2 and their respective control means. This makes it possible to further reinforce the pooling of means of the functional unit EF and thus to further reduce the overall size and cost of the optical block BO. It will be noted, as shown in non-limiting manner in FIG. 3, that it is advantageous if the internal face FI of the support plate PL is provided with at least one wall M intended to separate the first sources SL1 from the second sources SL2, as well as possibly separating the first sources SL1 and / or the second sources SL2 from each other. This makes it possible in particular to avoid parasitic lights in the functional assembly because of the delimitation of the nested functions.
    [0009] As illustrated non-limitatively in FIGS. 4 and 5, the first reflector R1 may comprise a first upper wall PS1 which supports the second reflector R2. It will be noted, as illustrated not only in FIG. 2, that this first upper wall PS1 may possibly comprise several subparts.
    [0010] In this case, and as illustrated in non-limiting manner in FIGS. 2, 4 and 5, the second reflector R2 may also comprise a second upper wall PS2 provided with at least two first holes Ti, and the first upper wall PS1 may comprise ( on an external face) at least two first PC1 coupling pads adapted to pass through the first holes Ti 25 to ensure a coupling between the first reflective R1 and R2 R2. Preferably, and as illustrated, at least some of the first holes Ti have a surface which is substantially greater than the section of the first PC1 coupling pads to account for manufacturing tolerances that allow small dimensional variations thereof (PC1 ) and small position variations of the first holes Ti and / or the first coupling pads PC1. Note that in an embodiment variant not shown it is the first upper wall PS1 which could be provided with at least two first holes 3036773, and it is the second upper wall PS2 which could comprise (on an inner face ) at least two first PC1 coupling pads adapted to pass through the first holes Ti to provide a coupling between the first reflective R1 and R2 R2.
    [0011] Note also that in the non-limiting example illustrated in Figures 2, 4 and 5 the second upper wall PS2 is provided with eight first holes Ti, and the first upper wall PS1 comprises (on its outer face) eight first pads of PC1 coupling to cross respectively the first eight holes Ti. But the number of first holes Ti and first 10 PC1 coupling pads can take any value greater than or equal to two (2), to ensure a minimum coupling. It will also be noted, as shown in non-limiting manner in FIGS. 2 and 4, that the second upper wall PS2 may possibly comprise several subparts. Here it has three as a non-limiting example. Furthermore, and as illustrated in non-limiting manner in FIGS. 2 to 5, the support plate PL may comprise at least two second holes T2 adapted to be traversed by at least some of the first coupling pads PC1 to allow coupling with the first R1s. and second R2 reflectors. It will be understood that in this case, the support plate PL is supported by the first upper wall PS1 and also by the second upper wall PS2. Note that in the non-limiting example illustrated in Figures 2 to 5 the support plate PL is provided with eight second holes T2 adapted to be traversed respectively by the first eight coupling pads PC1 of the first upper wall PS1. But the number of second holes T2 could be different from the number of first coupling pads PC1, since it is at least equal to two (2) to ensure a minimum coupling. The second upper wall PS2 is thus interposed closely between the first upper wall PS1 and the support plate PL. It will also be noted that the first coupling pins PC1 comprise free ends which may, for example, be riveted, possibly by heating, once the coupling has been made between the first R1 and second R2 reflectors and the support plate PL (see FIG. Figure 5), so that the latter (R1, R2, PL) are fixedly secured to each other. An EF functional assembly is thus produced which can be easily installed in the BB housing of an optical block BO.
    [0012] In an alternative embodiment not shown, the free ends of the first coupling pins PC1 could be provided with an external thread intended to allow the screwing of nuts once the second reflector R2 and the support plate PL coupled to the first receiver R1. . It will also be noted, as illustrated without limitation in FIGS. 2, 4 and 5, that the first receiver R 1 may comprise on its external face at least one fixing lug PF, and preferably several, intended to allow its fixing to the BB housing, and thus the immobilization of the EF functional assembly in the internal space of the optical block BO. It will also be noted, as illustrated in non-limiting manner in FIGS. 2 and 4, that the second upper wall PS2 may optionally comprise third holes T3 defined at selected locations intended to allow the passage between the first R1 and second R2 reflectors of the parts of at least some of the first SL1 sources that deliver the photons.
    [0013] In the nonlimiting example illustrated in FIGS. 2 and 4, the second upper wall PS2 is provided with five third holes T3 capable of being traversed respectively by five first sources SL1. Here, the other three first sources SL1 pass between sub-portions of the second support wall PS2. But the number of third holes T3 can take any value at most equal to the number of first sources SL1. It will also be noted, as illustrated in non-limiting manner in FIGS. 2, 4 and 5, that the second upper wall PS2 may optionally comprise (on its outer face) at least a second coupling pad PC2 adapted to pass through a corresponding fourth hole T4, defined in the support plate PL. This option is intended to reinforce the coupling between the second reflector R2 and the support plate PL. In the nonlimiting example illustrated in FIGS. 2, 4 and 5, the second upper wall PS2 comprises three second coupling pads PC2, and the support plate PL comprises three fourth holes T4. But the number of fourth holes T4 and second coupling pads PC2 can take any value greater than or equal to one (1). Note that in an alternative embodiment not shown it is the second upper wall PS2 which could be provided with at least a fourth hole T4, and it is the support plate PL which could include (on its inner side FI ) at least a second coupling pad PC2 own through a fourth hole T4 corresponding to ensure a coupling between it (PL) and the second reflector R2.
    [0014] As illustrated without limitation in FIGS. 1, 4 and 5, the second reflector R2 may be placed in front of a central part of the first reflector R1, so that the photons which come from the first lighting device D1 partially surround the photons which are derived from the second lighting device D2 at the front face of the optical block BO. Thus, the area 15 of illumination of the photometric function provided by the second lighting device D2 is at least partially surrounded by the illumination area of the photometric function provided by the first lighting device D1. It should be noted that in the example shown in non-limiting manner in FIGS. 1 and 5, the second reflector R2 is placed and arranged to transfer the photons delivered by the second lighting device D2 to a zone Z2 of the front face of the block. optical, which is substantially rectangular, and the first reflector R1 is placed and arranged to transfer the photons delivered by the first lighting device D1 to a zone Z1 of the front face of the optical block BO, which is in general shape of U and which surrounds the substantially rectangular zone Z2 on three sides. But it is only one example of realization among many others. It will also be noted, as illustrated in non-limiting manner in FIGS. 1 and 5, that the functional unit EF may also and possibly comprise a first screen El intended to materialize and possibly structure the zone Z1 (and therefore the zone of illumination of the photometric function of the first lighting device D1), and a second screen E2 intended to materialize and possibly structure the zone Z2 (and thus the area of illumination of the photometric function of the second lighting device D2). But in a non-illustrated embodiment, these first El and second E2 screens could be external to the EF functional assembly and be housed in the BB housing upstream of the ice of the optical block BO. These first El and second E2 screens can be made of plastic (or synthetic) (especially PC). Moreover, they can be translucent or opal according to the associated photometric function. In addition, at least one of these first E1 and second E2 screens can optionally include at least one pattern of selected shape (such as for example streaks). The invention offers several advantages, among which: a reduction in the bulk of the optical block, a reduction in the manufacturing cost of the optical block, a reduction in the complexity of the optical unit, a reduction in the weight of the block. optical, an improvement in the relative positioning of the illumination areas of the photometric functions, a precise positioning of the light sources participating in the photometric functions, the possibility of completely hiding the securing means of the second reflector.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Optical block (BO) adapted to equip a vehicle and comprising at least first (D1) and second (D2) lighting devices respectively comprising at least a first source (SL1) of photons and at least a second source (SL2) of photons, characterized in that it further comprises i) a first reflector (R1) adapted to transfer photons delivered by each first source (SL1) to a front face, ii) a second reflector la (R2) placed in front of a part selected from said first reflector (R1) and adapted to transfer photons delivered by each second source (SL2) to said front face, and iii) a support plate (PL) placed above said first (R1) and second (R2) reflectors and comprising an inner face (FI) on which are fixed each first source (SL1) and each second source (SL2) in selected locations.
    [0002]
    2. Optical block according to claim 1, characterized in that said first reflector (R1) comprises a first upper wall (PS1) supporting said second reflector (R2).
    [0003]
    An optical unit according to claim 2, characterized in that said second reflector (R2) comprises a second top wall (PS2) provided with at least two first holes (Ti), and said first top wall (PS1) comprises at least minus two coupling pads (PC1) adapted to pass through said first holes (Ti) to ensure a coupling between said first (R1) and second (R2) reflectors. 25
    [0004]
    4. Optical block according to claim 3, characterized in that said support plate (PL) comprises at least two second holes (T2) adapted to be traversed by at least some of said coupling pads (PC1) to allow coupling with said first (R1) and second (R2) reflectors. 30
    [0005]
    5. An optical unit according to claim 4, characterized in that said coupling pins (PC1) comprise free ends which are riveted once the coupling is made between said first (R1) and second (R2) reflectors and said support plate ( PL), so that the latter 3036773 13 (R1, R2, PL) are firmly fixed to each other.
    [0006]
    6. An optical unit according to one of claims 1 to 5, characterized in that said second reflector (R2) is placed in front of a central portion of said first reflector (R1), so that the photons from said first lighting device 5 (D1) partially surround the photons from said second lighting device (D2) at said front face.
    [0007]
    7. An optical unit according to claim 6, characterized in that said second reflector (R2) is adapted to transfer the photons delivered by said second lighting device (D2) to a region (Z2) substantially rectangular of said front face, and said first reflector (R1) is adapted to transfer the photons delivered by said first lighting device (D1) to a zone (Z1) of said generally U-shaped front surface and surrounding said substantially rectangular zone (Z2) in three directions. sides.
    [0008]
    8. An optical unit according to one of claims 1 to 7, characterized in that each first source (SL1) and / or each second source (SL2) is a light diode.
    [0009]
    9. Vehicle, characterized in that it comprises at least one optical block (BO) according to one of the preceding claims.
    [0010]
    10. Vehicle according to claim 9, characterized in that it is automotive type.
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    同族专利:
    公开号 | 公开日
    EP3098499A1|2016-11-30|
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    CN106195850A|2016-12-07|
    ES2668939T3|2018-05-23|
    CN106195850B|2021-07-20|
    EP3098499B1|2018-04-18|
    引用文献:
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    法律状态:
    2016-04-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-02| PLSC| Search report ready|Effective date: 20161202 |
    2017-04-21| PLFP| Fee payment|Year of fee payment: 3 |
    2018-04-23| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-29| CA| Change of address|Effective date: 20180312 |
    2018-06-29| CD| Change of name or company name|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
    2019-04-19| PLFP| Fee payment|Year of fee payment: 5 |
    2020-04-22| PLFP| Fee payment|Year of fee payment: 6 |
    2021-04-21| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1554731A|FR3036773B1|2015-05-27|2015-05-27|VEHICLE OPTICAL BLOCK WITH SHARED LIGHT SOURCE SUPPORT PLATE FOR PLACING A PHOTOMETRIC FUNCTION IN ANOTHER PHOTOMETRIC FUNCTION|
    FR1554731|2015-05-27|FR1554731A| FR3036773B1|2015-05-27|2015-05-27|VEHICLE OPTICAL BLOCK WITH SHARED LIGHT SOURCE SUPPORT PLATE FOR PLACING A PHOTOMETRIC FUNCTION IN ANOTHER PHOTOMETRIC FUNCTION|
    ES16169482.3T| ES2668939T3|2015-05-27|2016-05-13|Optical vehicle block with shared light source support plate for placing a photometric function in another photometric function|
    EP16169482.3A| EP3098499B1|2015-05-27|2016-05-13|Vehicle headlamp with plate for supporting shared light sources for placing one photometric function in another photometric function|
    CN201610365796.XA| CN106195850B|2015-05-27|2016-05-27|Vehicle optical unit with shared light source support plate for placing one illumination function in another illumination function|
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