• 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:
    The present invention relates to a headlight for a motor vehicle, which comprises a housing, a hood mounted on the housing, and where the housing and the hood define a cavity. A first light emitting module is arranged in the cavity, which emits a first light radiation, and the shade is configured to extract the first light radiation in substantially a first direction. The lighthouse is characterized by the fact that it comprises a light output surface arranged at a substantially lateral end of the lighthouse, and a second light emitting module arranged in the cavity, where the second light emitting module emits a second light radiation . Furthermore, the invention relates to a motor vehicle comprising said headlight. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2748207A1
    申请号:ES201830888
    申请日:2018-09-13
    公开日:2020-03-13
    发明作者:Garcia Maite Paris；Dieste Sara Martinez；Fernandez Amara Calderon
    申请人:SEAT SA；
    IPC主号:
    专利说明:

    [0001]
    [0002]
    [0003]
    [0004] Technical sector
    [0005]
    [0006] The present invention generally relates, in a first aspect, to a headlight for a motor vehicle.
    [0007]
    [0008] A second aspect of the invention relates to a motor vehicle comprising such a headlight.
    [0009]
    [0010] State of the prior art
    [0011]
    [0012] Headlamps on motor vehicles must comply with relevant market regulations that dictate the functionality framework regarding the light emission provided. These regulations govern, inter alia, the minimum and maximum light intensity (lumens), and the angular range of the lighting with respect to the direction of travel of the vehicle.
    [0013]
    [0014] In general, a headlamp is made up of a housing and a lampshade mounted on said housing. The lampshade generally has a level of transparency which allows light to pass through at least to some extent, while the casing is generally made of an opaque material that does not allow light to pass through. For this reason the resulting lighting is determined in part by the spatial configuration of the housing and the shade.
    [0015]
    [0016] Furthermore, recent trends in vehicle front area design reduce the space in the vehicle's side corners, thus reducing the size available for the headlight housing and hence the cavity defined by the housing. As this cavity is the one that generally contains the lighting assembly, said reduction of space can be problematic for the proportion of satisfactory lighting and / or that complies with the lighting regulations.
    [0017]
    [0018] In the state of the art, headlights that meet the characteristics of the preamble of claim 1 of the present invention are known, that is, they comprise a first emitter and a second emitter.
    [0019]
    [0020] For example, in US2018 / 0170247 A1 a headlamp with two light emitters is proposed. However, the objective of this headlight is to provide an additional light emitter to generate aesthetic illumination through the front grille (or grille) of the vehicle. This document does not contemplate possible lack of lighting in regards to compliance with regulations. This is indirect and non-functional lighting of the front grille, where a user located in the front area of the vehicle does not directly perceive the light beams generated by the additional light emitter.
    [0021]
    [0022] It therefore seems necessary to offer an alternative to the state of the art that provides a headlamp configured in such a way that it provides adequate lighting that can satisfy the pertinent regulations, and that does not suffer from the drawbacks of headlamps known in the state of the art.
    [0023]
    [0024] Explanation of the invention
    [0025]
    [0026] To this end, a first aspect of the present invention relates to a headlight for a motor vehicle, which comprises a housing, a hood mounted on the housing, and where the housing and the hood define a cavity. A first light emitting module is arranged in the cavity, which emits a first light radiation, and the shade is configured to extract the first light radiation in substantially a first direction.
    [0027]
    [0028] The headlamp is characterized by the fact that it comprises a light output surface arranged at a substantially lateral end of the headlamp, and a second light-emitting module arranged in the cavity, where the second light-emitting module emits a second light radiation .
    [0029]
    [0030] Furthermore, the first light emitting module and the second light emitting module are turned on simultaneously, and the light output surface is configured to extract the second light radiation in substantially a second direction. The first direction and the second direction are substantially different. The second light-emitting module, oriented towards the side of the headlight and emitting light behind the grille, will allow illuminating those areas of visibility where the first light-emitting module does not cover. Preferably, it is a headlight for a motor vehicle. This configuration advantageously results in satisfactory lighting with respect to the front area of the vehicle.
    [0031]
    [0032] In some examples of embodiment of the headlamp, the first light emitting module comprises at least one first light emitter, and where the second light emitting module comprises at least a third light emitter, where the at least one first light emitter and the at least a third light emitter are configured to generate a first lighting function. Thus, the first lighting function, for example, a signaling of a turn signal, is generated by both the first light emitter and the second light emitter. The second light emitting module will complement the range or angle of the first light emitting module, the range of this first light emitting module being insufficient to exceed the described homologation requirements.
    [0033] Furthermore, the first light-emitting module may further comprise at least a second light-emitting module, and where the second light-emitting module further comprises at least a fourth light-emitting module, where the at least one second light-emitting module and the at least a fourth light emitter are configured to generate a second lighting function. Thus, the second lighting function, for example, a position light illumination, is generated by both the first light emitter and the second light emitter. The second light emitting module will complement the range or angle of the first light emitting module, the range of this first light emitting module being insufficient to exceed the described homologation requirements.
    [0034]
    [0035] According to some embodiment examples, the first light emitting module is configured to turn on the at least one first light emitter and / or the at least one second light emitter, and where the second light emitting module is configured to turn on the at minus a third light emitter or the at least a fourth light emitter. This configuration advantageously facilitates the control of the different light emitters through the first module as the main entity. In order to optimize the space occupied by the second light emitting module, both the light generated by the third light emitter and that generated by the fourth light emitter are extracted from the same light output surface, which has reduced dimensions. In order not to produce mixtures of colors and / or intensities, the first function and lighting and the second lighting function cannot be generated simultaneously by the second light-emitting module.
    [0036]
    [0037] In some exemplary embodiments, the first light emitting module is arranged at a first end of the cavity, and the second light emitting module is arranged at a second end of the cavity. This configuration advantageously allows illumination to be provided from different positions within the cavity, which results in illumination in different directions and / or with different ranges. This configuration facilitates the mutual complement or supplement of the light intensity or the light range between the light emitters. In some exemplary embodiments, the first end is arranged in the cavity substantially opposite the second end.
    [0038]
    [0039] In other exemplary embodiments, the first and second light emitting modules are operatively connected such that the first light emitting module governs the second light emitting module. This simplifies the control of the light emitters, particularly when they are configured in such a way that the second light emitting module performs the same lighting functions as the first light emitting module, and the on and / or off commands are received in the second light emitting module directly from the first module light emitting, not requiring that the second light emitting module be directly connected to the central unit.
    [0040]
    [0041] Alternatively, in some embodiments, the first light emitting module and the second light emitting module are governed by a central control unit and are therefore individually connected to said central control unit.
    [0042]
    [0043] In some exemplary embodiments, the headlamp comprises an optical element arranged between the second light-emitting module and the light-output surface, where the optical element is configured to direct at least a fraction of the second light radiation through the surface light output.
    [0044]
    [0045] In some exemplary embodiments, the optical element comprises a lens, which advantageously allows the selection of materials and parameters to manipulate the incident light in the desired manner.
    [0046]
    [0047] In an exemplary embodiment, the optical element comprises an optical light reflector, which advantageously provides a cost-effective mechanism for manipulating and / or redirecting the incident lighting.
    [0048]
    [0049] In some exemplary embodiments, the optical element comprises a light guide, which advantageously provides spatial flexibility with respect to light redirection.
    [0050]
    [0051] As previously mentioned, the headlight comprises a single optical element to modify the light properties of the light generated by the second light emitting module, in particular, to direct said light beams towards the light output surface. In this way it is possible to reduce the space occupied by the second light emitting module, thus reducing the complexity of the set. That is why, in the particular realization that the second light emitting module comprises a third light emitter and a fourth light emitter, both light emitters cannot be activated simultaneously, but must be activated sequentially. . Alternatively, the headlamp comprises an optical element associated with each of the light emitters comprising the second light emitting module.
    [0052]
    [0053] In some exemplary embodiments, the light output surface is an opening provided in the housing. In this configuration, the contour of the housing can be used to define a hole that will allow the light output to improve, for example, when it comes to lighting angles.
    [0054]
    [0055] According to some examples of embodiment, the shade comprises a mask, where the mask defines the light output surface, so that the shade integrates the light output surface. The use of a mask advantageously allows, among others, the retroactive adjustment the contour of the housing opening. Therefore, it can be a cost-effective mechanism of implementing a novel lighting assembly in an existing housing.
    [0056]
    [0057] In some exemplary embodiments, where the first light-emitting module (108) comprises at least one LED device ("Light-Emitting Diode") and at least one first PCB device (128) arranged at the first end of the headlight (130) , where the at least one first PCB device (128) is configured to control said LED devices (124, 126), and where the second light emitting module (110) comprises at least one LED device ("Light-Emitting Diode") and at least one second PCB device (129) arranged at the second end of the headlight (132), where the at least one second PCB device (129) is operatively connected to the first PCB device (128) through a wiring (122) . This configuration advantageously allows the synchronized control of the respective LED devices, which allows the first PCB device to govern the second PCB device, simplifying the electronics of the assembly.
    [0058]
    [0059] Advantageously, an LED device ("Light-Emitting Diode") generally consumes less energy than other alternatives. Furthermore, said light emitters can comprise light emitters of different colors, in order to carry out different lighting functions.
    [0060]
    [0061] Alternatively, in other exemplary embodiments, each PCB device is individually connected to the central control unit. This advantageously facilitates centralized control of the light emitting modules, which may be useful in a configuration where each light emitting module separately performs a particular lighting function.
    [0062]
    [0063] In another aspect, the invention relates to a motor vehicle, comprising at least one headlight as described in this disclosure, and which is characterized in that at least a fraction of the light radiation redirected through the aperture is spreads in the direction of a substantially centralized region in front of the vehicle. In this way, satisfactory lighting can be provided, which can also meet the scope requirements of the regulation.
    [0064]
    [0065] Preferably, the optical element is configured such that it redirects at least a fraction of the second light radiation, so that the redirected light radiation reaches a minimum angular distance from a vertical plane that intersects the front end of the vehicle.
    [0066]
    [0067] Preferably, the optical element is configured such that it redirects at least a fraction of the second light radiation such that the redirected light radiation reaches a minimum angular distance of 45 ° from a vertical plane that intersect the front end of the vehicle. Thus, the light radiation generated by the second light emitting module complements the light radiation generated by the first light emitting module, achieving a satisfactory and sufficient angle.
    [0068]
    [0069] In some embodiments, at least a fraction of the light radiation redirected through the aperture is spatially oriented such that it propagates through the holes in a front grille or grille of the vehicle.
    [0070]
    [0071] Brief description of the drawings
    [0072]
    [0073] The above and other advantages and characteristics will be more fully understood from the following detailed description of some embodiment examples with reference to the attached drawings, which should be taken by way of illustration and not limitation, in which:
    [0074]
    [0075] Figure 1 is a perspective view of the lighthouse proposed by a first aspect of the present invention.
    [0076]
    [0077] Figure 2 is a schematic diagram illustrating a detail of an embodiment example.
    [0078] Figure 3 is a top and detailed cross-sectional view of a second end of the proposed headlamp according to a first embodiment example.
    [0079]
    [0080] Figure 4 is a top and detailed cross-sectional view of a second end of the proposed headlamp according to a second embodiment example.
    [0081]
    [0082] Detailed description of some embodiment examples
    [0083]
    [0084] In the attached Figures an exemplary embodiment of the headlight 100 for motor vehicle or automobile is illustrated in a first aspect of the invention for which it comprises, as can be seen in Figure 1, a housing 104 containing a shade 106. In the shade 106 an opening or light outlet surface is provided. Furthermore, the headlamp has a first light emitting module 108 and a second light emitting module 110, both arranged in the cavity. The headlamp in this example is a headlamp on the front right-hand side of the vehicle (taking as a reference a user located inside the vehicle interior and facing in the vehicle's forward direction). Thus, the first light emitting module 108 is configured to emit a first light radiation 144 through the shade 106. The first light emitting module 108 is located at a first end 130 of the cavity, in particular at the left end of the cavity, according to figure 1. The first light emitting module 108 would be the main emission module and in charge of generating mainly a first lighting function.
    [0085] Said first light emitting module 108 comprises a first light emitter 1081 and a plurality of optical elements to modify the light properties of the light generated by the first light emitter 1081, obtaining the first light radiation 144.
    [0086]
    [0087] Due to space requirements in the front side area of the vehicle, due to design or other requirements, the first light radiation 144 does not meet the approval requirements, in particular for range or angle in the horizontal plane. That is why the headlamp of the present invention has a second light emitting module 110 also arranged in the cavity and, in particular, at a second end 132 of the cavity (right end of the cavity, according to Figure 1). Said second light emitting module 110 generates a second light radiation 142 in a second direction, different from the first direction, with the aim of complementing the illumination range or angle in the horizontal plane of the first lighting module 108. Thus, both the The first light emitting module 108 and the second lighting module 110 are turned on simultaneously, in order to meet the approval requirements.
    [0088]
    [0089] To achieve this, the headlamp comprises a light output surface 116, arranged at a lateral end of the headlamp. As seen in FIG. 1, the light output surface 116 is arranged on a surface substantially perpendicular to the plane comprising the shade 106, that is, on a lateral surface of the housing 104. Therefore, the second Light emitting module emits light towards one side of headlight 100 in order to increase the range or angle in the horizontal plane.
    [0090]
    [0091] In this way, the light radiation generated by the second light emitting module 110 and extracted from the headlight 100 through the opening 116 propagates towards a central region of the vehicle, but in such a way that it reaches a minimum angular distance from a vertical plane. . Thus, by way of example, the first emission direction generated by the first emitter module 108 and the second emission direction generated by the second light emitter 110 diverge 45 ° in a horizontal plane.
    [0092]
    [0093] The second light radiation will be directed towards the front grille or grill of the vehicle, also known as the front grille or grille of the vehicle. Thus, the second light radiation will be propagated through the holes in the front grille of the vehicle, achieving direct illumination towards the front area of the vehicle.
    [0094]
    [0095] In the schematic embodiment of figure 2, the housing 104 of the headlight 100 is seen. Specifically, of the same right headlight 100 of figure 1. Thus, the first light-emitting module 108 comprises a first PCB 128. Said first emitting module light 108 is arranged at a first end 130 of the headlight 100. At the opposite end, specifically the Second end 132 of beacon 100 is the second light emitting module 110, which comprises a second PCB 129. Both the first PCB 128 and the second PCB 129 are connected by means of wiring 122, so that both emitters of Light come on simultaneously. It is understood that each light emitting module is additionally composed of LED devices ("Light-Emitting Diode") and other optical elements to modify the light properties of the light generated by the LED devices.
    [0096] Figure 3 shows a detailed horizontal section view of the second end 132 of the lighthouse 100. Specifically, the second light-emitting module 110 is observed, which emits light through the light-output surface 116. The second light radiation 144 is deviated from the first light radiation 142 (not shown in FIG. 3), but which would be transmitted through the shade 106.
    [0097]
    [0098] The light output surface 116 is on a substantially lateral side or end of the headlamp 100 or of the housing 104. Said light output surface 116 in the shade 106 may, for example, be defined by a mask 136. Said mask 136 it can comprise a monolithic entity or it can be provided in several parts thus defining the light output surface 116. In the illustrated example, the mask 136 defines the light output surface 116, so that the shade 106 integrates the output surface 116. Alternatively, the light output surface 116 can be defined simply by the contour of the housing 104 around the shade 106, or by means of a hole or orifice made in the surface of the housing 104.
    [0099]
    [0100] In order to correctly direct the light beams generated by the second light emitting module 110 towards the light output surface 116 and, thus, towards the lateral area of the headlight 100, said headlight 100 also comprises, in an exemplary embodiment , an optical element 112. In the specific example of figure 3, it is an optical reflector that redirects the light beams. Alternatively, the optical element may also be a lens.
    [0101]
    [0102] According to the exemplary embodiment of FIG. 3, the second light-emitting module 110 comprises a second PCB 129 and a third light-emitter 1103. Said third light-emitter 1103 performs, for example, the position light function. Additionally, the light emitting module 108 comprises a first light emitter 1081, not seen in the figure, where the third light emitter 1103 and the first light emitter 1081 generate the same lighting function, complementing the second light emitting module 110 the angle or range not covered by the first light emitting module 108.
    [0103]
    [0104] The first light emitting module 108 and the second light emitting module 110 can be connected and governed by a central control unit, not seen in the figures. For the Therefore, both modules will be electrically connected to the central control unit, not requiring that they be connected to each other.
    [0105]
    [0106] Alternatively, the first light-emitting module 108 and the second light-emitting module 110 are connected by wiring 122, so that the first light-emitting module 108 governs the second light-emitting module 110, simplifying the electronic scheme of the headlamp. Thus, the first PCB 128 will issue the on and off commands to the second PCB 129.
    [0107] According to the alternative embodiment of FIG. 4, the second light-emitting module 110 comprises a second PCB 129, a third light-emitter 1103 and a fourth light-emitter 1104. Said third light emitter 1103 realizes, for example , the position light function. Said fourth light emitter 1104 performs the flashing signaling function. Additionally, the light emitting module 108 comprises a first light emitter 1081, not seen in the figure, where the third light emitter 1103 and the first light emitter 1081 generate the same lighting function. Furthermore, the light emitting module 108 comprises a second light emitter 1082, not seen in the figure, where the fourth light emitter 1104 and the second light emitter 1082 generate the same lighting function complementing the second light emitting module 110 the angle or range not covered by the first light emitting module 108.
    [0108]
    [0109] In this latter configuration, the first light emitting module 108 is configured to simultaneously turn on the first light emitter 1081 with the second light emitter 1082 or alternatively (not simultaneously) turn on the first light emitter 1081 and the second light emitter 1082. Thus, both lighting functions can be simultaneously activated by the first light emitting module 108, since each light emitter comprises its own associated optical elements, so that the light can be individually treated and adapted. In contrast, the second light emitting module 110 is configured to alternately (not simultaneously) turn on the third light emitter 1103 or the fourth light emitter 1104. The reason is that, in a small space, it cannot exist. optics associated with each of the light emitters, so that both light emitters share both the optical element 112 and the light output surface 116. Thus, one of the two functions generated by the second light-emitting module will have priority about the other function.
    [0110]
    [0111] Optical element 112 may comprise, for example, an optical guide or light guide, which redirects at least a fraction of the light radiation emitted by the second light emitting module 110 towards one direction in a centralized area in front of the vehicle. Figure 4 shows a horizontal section of an elongated cylindrical light guide, which directs the beams of light to the outlet surface 116 by means of optical structures arranged inside the light guide. The light emitter and optical element 112 are configured such that at least a fraction of the redirected radiation passes through the vehicle's grille, thereby providing illumination in front of the vehicle. This second direction (and range) is schematically demonstrated by the second light radiation 142 or illuminated field. The optical guide can be mounted in the cavity by means of a bracket that defines its position and orientation with respect to the housing 104 and with respect to the emitter modules. of light.
    [0112]
    [0113] A person skilled in the art could introduce changes and modifications in the described embodiment examples without departing from the scope of the invention as defined in the appended claims.
    权利要求:
    Claims (18)
    [1]
    1. Headlight (100) for a motor vehicle, comprising
    - a casing (104),
    - a shade (106) mounted on the casing (104), where the casing (104) and the shade (106) define a cavity,
    - a first light emitting module (108) arranged in the cavity, where the first light emitting module (108) emits a first light radiation, where the shade (106) is configured to extract the first light radiation in substantially a first direction ,
    characterized by the fact that the headlight (100) comprises:
    - a light output surface (116) disposed at a substantially lateral end of the headlight (100), and
    - a second light-emitting module (110) arranged in the cavity, where the second light-emitting module (110) emits a second light radiation, where the first light-emitting module (108) and the second light-emitting module (110 ) are lit simultaneously, where the light output surface 116 is configured to extract the second light radiation in substantially a second direction, where the first direction and the second direction are substantially different.
    [2]
    2. Headlamp (100) according to claim 1, where the first light-emitting module (108) comprises at least one first light-emitting module (1081), and where the second light-emitting module (110) comprises at least a third emitter (1103), where the at least one first light emitter (1081) and the at least one third light emitter (1103) are configured to generate a first lighting function.
    [3]
    Headlight (100) according to claim 2, wherein the first light emitting module (108) additionally comprises at least one second light emitting module (1082), and where the second light emitting module (110) additionally comprises at least one fourth light emitter (1104), where the at least one second light emitter (1082) and the at least one fourth light emitter (1104) are configured to generate a second lighting function.
    [4]
    Headlight (100) according to claim 3, wherein the first light emitting module (108) is configured to turn on the at least one first light emitter (1081) and / or the at least one second light emitter (1082) , and where the second light emitting module (110) is configured to turn on the at least a third light emitter (1103) or the at least a fourth light emitter (1104).
    [5]
    Headlight (100) according to any of the preceding claims, wherein the first light emitting module (108) is arranged at a first end (130) of the cavity, and the second light emitting module (100) is arranged at a second cavity end (132), and where the first end (130) is arranged in the cavity substantially opposite the second end (132).
    [6]
    Headlamp (100) according to any of the preceding claims, wherein the first and second light emitting module (108, 110) are operatively connected such that the first light emitting module (108) governs the second light emitting module ( 110).
    [7]
    Headlamp (100) according to any of claims 1 to 6, wherein the first light emitting module (108) and the second light emitting module (110) are governed by a central control unit.
    [8]
    Headlight (100) according to any of the preceding claims, comprising an optical element (112) arranged between the second light-emitting module (110) and the light-output surface (116), where the optical element (112) it is configured to direct at least a fraction of the second light radiation through the light output surface (116).
    [9]
    9. Headlamp (100) according to claim 8, wherein the optical element (112) comprises a lens.
    [10]
    Headlamp (100) according to claim 8, wherein the optical element (112) comprises an optical light reflector.
    [11]
    11. Headlight (100) according to claim 8, wherein the optical element (112) comprises a light guide.
    [12]
    Headlight (100) according to any of the preceding claims, wherein the light output surface (116) is an opening provided in the housing (104).
    [13]
    13. Headlight (100) according to any of claims 1 to 12, where the shade (106) comprises a mask (136), where the mask (136) defines the light output surface (116), so that the lampshade (106) integrates the light output surface (116).
    [14]
    14. Headlight (100) according to any of the preceding claims, wherein said headlight (100) is a headlight for a motor vehicle.
    [15]
    15. Headlight (100) according to any of the claims, wherein the first light emitting module (108) comprises at least one LED device ("Light-Emitting Diode") and at least one first PCB device (128) arranged in the first headlight end (130), where the at least one first PCB device (128) is configured to control said LED devices, and where the second light emitting module (110) comprises at least one LED device ("Light-Emitting Diode" ) and at least a second PCB device (129) arranged at the second end of the headlight (132), where the at least one second PCB device (129) is operatively connected to the first PCB device (128) through a wiring (122 ).
    [16]
    Motor vehicle, comprising the headlight (100) according to any of claims 1 to 15, characterized in that at least a fraction of the light radiation redirected through the aperture (116) propagates in the direction of a substantially centralized region in front of the vehicle.
    [17]
    Motor vehicle according to claim 16, wherein the optical element (112) is configured in such a way that it redirects at least a fraction of the second light radiation, so that the redirected light radiation reaches a minimum angular distance from a vertical plane. that intersects the front end of the vehicle.
    [18]
    Motor vehicle according to claims 16 to 17, where at least a fraction of the light radiation redirected through the opening (116) is spatially oriented in such a way that it propagates through the holes of a front grille of the vehicle .
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    US20180170247A1|2016-12-19|2018-06-21|Toyota Motor Engineering & Manufacturing North America, Inc.|Lamp assembly with grille lighting function|
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    ES201830888A|ES2748207B2|2018-09-13|2018-09-13|HEADLIGHT FOR AUTOMOBILE VEHICLE|ES201830888A| ES2748207B2|2018-09-13|2018-09-13|HEADLIGHT FOR AUTOMOBILE VEHICLE|
    EP19195326.4A| EP3623221A1|2018-09-13|2019-09-04|Headlamp for motor vehicle|
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