WO2023123235A1 - 灯具单元、前照灯和车辆 - Google Patents

灯具单元、前照灯和车辆 Download PDF

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Publication number
WO2023123235A1
WO2023123235A1 PCT/CN2021/143202 CN2021143202W WO2023123235A1 WO 2023123235 A1 WO2023123235 A1 WO 2023123235A1 CN 2021143202 W CN2021143202 W CN 2021143202W WO 2023123235 A1 WO2023123235 A1 WO 2023123235A1
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WO
WIPO (PCT)
Prior art keywords
low
lamp unit
light source
beam light
optical element
Prior art date
Application number
PCT/CN2021/143202
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English (en)
French (fr)
Inventor
祝贺
桑文慧
Original Assignee
华域视觉科技(上海)有限公司
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Priority to PCT/CN2021/143202 priority Critical patent/WO2023123235A1/zh
Publication of WO2023123235A1 publication Critical patent/WO2023123235A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the present disclosure generally relates to a lamp unit, a headlamp including the lamp unit, and a vehicle including the headlamp.
  • a headlamp for a vehicle generally includes a low beam light source for realizing a low beam function and a high beam light source for realizing a high beam function.
  • the low beam function is used for short-distance lighting to enable the driver to identify any obstacles on the road within 100 meters in front of the vehicle, while the high-beam function is used for long-distance lighting to broaden the driver's vision. In order to ensure driving safety, it is usually necessary to make the high beam lighting distance of the vehicle greater than 100 meters.
  • patent document CN112113181A proposes a lamp unit capable of using one light source substrate to perform illumination under low-beam light distribution and high-beam light distribution.
  • the low-beam light source and the high-beam light source are mounted on the same light source substrate, so that the heat emitted by the low-beam light source and the high-beam light source will be concentrated near the light source substrate, making the durability The heat is poor, which affects the life of the lamp unit.
  • An object of the present disclosure is to provide a lamp unit for a vehicle headlamp that can improve heat resistance and realize an integrated illumination function of high and low beams.
  • Another object of the present disclosure is to provide a lamp unit for vehicle headlamps capable of increasing the brightness of the area near the low cut-off line.
  • Yet another object of the present disclosure is to provide a lighting unit for vehicle headlights that can be adapted for adaptive high beam lighting.
  • the lamp unit may include: a low beam light source, which may be configured to emit low beam light; a high beam light source, which may Configured to emit high beam light; and a light distribution part, the light distribution part may include a low beam reflective surface and a high beam reflective surface, and the low beam reflective surface may be configured to reflect a part of the low beam light in the low beam light and toward the lamp unit
  • the high beam reflective surface can be configured to reflect a part of the high beam light and guide it toward the front of the lamp unit; and the lens, the lens can be arranged in the front direction of the light distribution part, and can be configured for Refracting low beam rays and high beam rays to the front of a vehicle including the headlamp, wherein the low beam reflective surface may include a low beam front end and an opposite low beam rear end, and the high beam reflective surface may include a high beam front end part and the rear end of the high beam opposite to the front end of the high beam and lower than the front
  • a low-beam reflective surface connecting portion may be provided between the low-beam front end and the low-beam rear end, and the low-beam reflective surface may include a first connecting portion extending from the low-beam rear end to the low-beam reflective surface connection portion.
  • a low beam reflective surface and a second low beam reflective surface extending from the low beam front end to the low beam reflective surface connecting portion; and the low beam reflective surface connecting portion may be lower than the low beam rear end in the vertical direction, and the first The low-beam reflective surface may form an included angle with the second low-beam reflective surface at the connecting portion of the low-beam reflective surface.
  • the acute angle of the included angle between the first low-beam reflective surface and the second low-beam reflective surface at the connecting portion of the low-beam reflective surface may be greater than 150 degrees and less than 180 degrees.
  • the acute angle of the included angle between the first low-beam reflective surface and the second low-beam reflective surface at the connecting portion of the low-beam reflective surface may be greater than 170 degrees and less than 180 degrees.
  • the acute angle of the included angle between the first low-beam reflective surface and the second low-beam reflective surface at the connecting portion of the low-beam reflective surface may be 175 degrees.
  • the connecting portion of the low beam reflecting surface may be disposed at one-third to one-half of the low-beam reflecting surface.
  • the lamp unit may further include a low-beam primary optical element and a high-beam primary optical element
  • the low-beam primary optical element may be configured to converge and collimate the low-beam light emitted from the low-beam light source
  • the high-beam primary optical The element can be configured to converge and collimate the high-beam light emitted from the high-beam light source
  • the low-beam primary optical element can be arranged in front of the low-beam light source
  • the low-beam primary optical element can be arranged vertically higher than
  • the rear end of the low beam and the primary optical element of the high beam can be arranged above the light source of the high beam, close to the front end of the high beam and below the reflective surface of the high beam.
  • the low beam primary optical element may be a focusing cup element or a reflector.
  • the high beam light source may include a plurality of high beam LEDs that can be turned on and off independently; and the lighting unit may be configured to: when detecting the presence of a road user in front of the vehicle including the headlights, Turning off at least one high beam LED of the plurality of high beam LEDs.
  • the lamp unit may include a high beam primary optical element configured to converge and collimate high beam light emitted from a high beam light source, and the high beam primary optical element may include a plurality of high beam LEDs in an integrated manner.
  • a plurality of microlenses matched in a one-to-one manner, and the high-beam reflection surface may include a plurality of curved surfaces connected to each other, and the plurality of curved surfaces may be matched with the plurality of microlenses in a one-to-one correspondence manner.
  • each curved surface may be a convex surface protruding outward relative to the high beam primary optical element.
  • the convex surface protruding outward toward the high beam primary optical element may be a cylindrical surface.
  • each curved surface may be a concave surface that is inwardly recessed relatively away from the high beam primary optical element.
  • the high beam reflecting surface may be a plane.
  • the low beam light source may be at least one low beam LED.
  • At least one of the high-beam reflective surface and the low-beam reflective surface may be provided with a reinforcing structure for increasing the reflectivity of the corresponding high-beam light and/or low-beam light.
  • the reinforcing structure may be aluminum plated on at least one of them.
  • Exemplary embodiments of the present disclosure also provide a headlamp for a vehicle, wherein the headlamp may include the lamp unit provided according to the foregoing embodiments.
  • Exemplary embodiments of the present disclosure also provide a vehicle, wherein the vehicle may include the headlamp provided according to the foregoing embodiments.
  • the low beam light source can be disposed close to the low beam rear end portion and can be disposed higher than the low beam rear end portion in the vertical direction, while the high beam light source can be located near the high beam front end portion and on the high beam reflective surface and the high-beam light source is arranged vertically lower than the high-beam reflective surface.
  • the low beam light source and the high beam light source are spaced apart in both the vertical direction (upper and lower directions) and the horizontal direction (front and back direction), so that the low beam light source and the high beam light source can be separated by a large distance so that the heat source It is relatively dispersed, and therefore, the lamp unit can realize the integrated illumination of far and near light while having better heat resistance performance.
  • the first low-beam reflecting surface and the second low-beam reflecting surface form an angle at the connecting portion of the passing-beam reflecting surface, and the connecting portion of the passing-beam reflecting surface is lower than the rear of the low-beam reflecting surface in the vertical direction. Ends.
  • part of the low-beam light emitted from the low-beam light source can be guided by the light distribution part to be closer to the cut-off line structure of the light distribution part, so that the light-dark cut-off line of the low-beam light shape of the lamp unit Nearby areas are brighter.
  • the high beam light source includes a plurality of high beam LEDs that can be turned on and off independently, and the lamp unit can be configured to turn more At least one of the high beam LEDs is turned off. In this way, multiple high-beam LEDs can be individually addressed to turn off and on, enabling an adaptive high-beam lighting pattern.
  • FIG. 1 is an exploded perspective view illustrating a lamp unit for a head lamp according to an exemplary embodiment of the present disclosure.
  • FIG. 2 is a side perspective view illustrating a lamp unit for a head lamp according to an exemplary embodiment of the present disclosure.
  • FIG. 3 is a plan view illustrating a lamp unit for a head lamp according to an exemplary embodiment of the present disclosure.
  • FIG. 4 is a cross-sectional view taken along line A-A in FIG. 3 showing a lamp unit for a headlight according to an exemplary embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram illustrating light directions of a lamp unit for a headlamp according to an exemplary embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram illustrating a low-beam beam shape of a headlamp of a lamp unit according to an exemplary embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram illustrating a low beam reflecting surface according to two different exemplary embodiments of the present disclosure.
  • FIG. 8 is a schematic light shape diagram illustrating low beam and adaptive high beam of a lamp unit for a headlamp according to an exemplary embodiment of the present disclosure.
  • the lamp unit 1 may include a low beam light source 10 and a high beam light source 20, the low beam light source 10 may be configured to emit low beam light, and the high beam light source 20 may be configured to emit high beam light .
  • the lamp unit 1 may further include a light distribution member 30 and a lens 40 arranged in the direction of the front end of the light distribution member 30 .
  • the light rays and the high beam rays emitted from the high beam light source 20 are refracted to the front of the vehicle including the lamp unit 1 as shown in FIG. 5 .
  • the light distribution member 30 may include a low-beam reflective surface 301, and the low-beam reflective surface 301 may be configured to reflect a part of the low-beam light emitted from the low-beam light source 10 toward the light source of the lamp unit 1. Forward guidance, as shown in Figure 5.
  • the low beam reflecting surface 301 may include a low beam front end portion 3011 and a low beam rear end portion 3012 opposite to the low beam front end portion 3011 .
  • the light distribution member 30 may further include a high-beam reflective surface 302, and the high-beam reflective surface 302 is configured to reflect a part of the high-beam light emitted from the high-beam light source 20 and direct it toward the lamp unit 1. Forward guidance, as shown in Figure 5.
  • the high beam reflective surface 302 includes a high beam front end 3021 and a high beam rear end 3022 opposite to the high beam front end 3021 and lower than the high beam front end 3021 in the vertical direction, wherein the vertical direction is shown in FIG. up and down directions shown.
  • the edges of the front end portion 3021 of the high beam overlap with the front end portion 3011 of the low beam to form a cut-off line structure, as shown in FIGS. 1 to 5 .
  • the low beam light source 10 may be disposed near the low beam rear end portion 3012 , and the low beam light source 10 may be disposed higher than the low beam rear end portion 3012 in a vertical direction. It can be understood that, in some embodiments, the low beam light source 10 may include a low beam light source light exit surface 100 , and the low beam light source light exit surface 100 may be arranged higher than the low beam rear end portion 3012 in the vertical direction.
  • the high beam light source 20 can be arranged close to the high beam front end portion 3021 and below the high beam reflective surface 302, and the high beam light source 20 can be arranged vertically lower than High beam reflective surface 302 .
  • the high beam light source 20 may include a high beam light source light exit surface 200, and the high beam light source light exit surface 200 is arranged to be lower than the high beam reflective surface 302 in the vertical direction, as shown in Fig. 4 and shown in Figure 5.
  • the low beam light source 10 is located close to the low beam rear end portion 3012 of the low beam reflective surface 301 of the light distribution member 30 and arranged higher than the low beam rear end portion 3012 in the vertical direction, and farther
  • the light source 20 is disposed close to the high beam front end portion 3021 and below the high beam reflecting surface 302 .
  • the low-beam light source 10 and the high-beam light source 20 are spaced apart in both the vertical direction (up-down direction) and the horizontal direction (front-rear direction), thereby separating the low-beam light source 10 from the high-beam light source 20 by a large distance.
  • the lamp unit 1 has better heat resistance while realizing integrated illumination of far and near light, thereby improving the service life of the lamp unit 1 .
  • FIG. 6 is a schematic diagram illustrating a low beam pattern A of the lamp unit 1 according to an exemplary embodiment of the present disclosure. 5 and 6, part of the low beam light emitted from the low beam light source 10 is irradiated to the cut-off line structure of the light distribution member 30, thereby forming the cut-off line A1 of the low beam beam shape A. , where the cut-off line A1 indicates the upper boundary of the low-beam beam shape A. It should be pointed out that the higher the brightness of the area near the cut-off line A1, that is, the higher the illuminance of the light shape A2 in the middle of the low beam, the better the visibility in the distance of the low beam of the headlight will be.
  • a low beam reflecting surface connecting portion 3013 may be provided between the low beam front end portion 3011 and the low beam rear end portion 3012 of the low beam reflecting surface 301 .
  • the low beam reflective surface connecting portion 3013 may be disposed at one third to one half of the low beam reflective surface 301 in a direction from the low beam rear end portion 3012 toward the low beam front end portion 3011 . In this way, the brightness of the entire low-beam beam pattern can be ensured while increasing the center brightness of the low-beam beam pattern, so that the low-beam light pattern can be further improved while making the low-beam lighting meet the legal requirements.
  • the low beam reflecting surface 301 may include a first low beam reflecting surface 3014 extending from the low beam rear end portion 3012 to the low beam reflecting surface connecting portion 3013 and a second low beam extending from the low beam front end portion 3011 to the low beam reflecting surface connecting portion 3013 Reflective surface 3015.
  • the low beam reflective surface connecting portion 3013 is lower than the low beam rear end portion 3012 in the vertical direction.
  • the first low-beam reflection surface 3014 is inclined rearward and upward relative to the second low-beam reflection surface 3015 , as shown in FIGS. 1 to 4 .
  • the first low-beam reflective surface 3014 more low-beam light can be guided to the area close to the cut-off line structure of the light distribution member 30, so that the cut-off line A1 of the low-beam beam shape A Nearby areas are brighter. This will be described in detail next with reference to FIG. 7 .
  • FIG. 7 is a schematic diagram showing a low beam reflecting surface 301 according to two different exemplary embodiments of the present disclosure.
  • the first low-beam reflective surface 3014' and the second low-beam reflective surface 3015 may be located on the same plane, for example, the first low-beam reflective surface 3014' shown by a dotted line in FIG.
  • the second low-beam reflecting surface 3015 shown by the solid line is located on the same plane, and the dotted-line arrow R' indicates the direction of the low-beam light in this case.
  • the first low-beam reflecting surface 3014 and the second low-beam reflecting surface 3015 may not be on the same plane, but form an angle at the connecting portion 3013 of the low-beam reflecting surface.
  • an included angle is formed between the first low beam reflective surface 3014 shown by the solid line and the second low beam reflective surface 3015 shown by the solid line, and the solid line arrow R indicates that there is an included angle The direction of the low beam light under the situation.
  • the brightness of the area near the cut-off line A1 of the low-beam beam pattern A is higher, That is, the higher the illuminance of the light shape A2 in the middle part of the low beam, the better the visibility in the distance of the low beam of the headlight will be.
  • the angle between the first low-beam reflecting surface 3014 and the second low-beam reflecting surface 3015 at the connecting portion 3013 of the low-beam reflecting surface is greater than 150 degrees and less than 180 degrees, preferably greater than 170 degrees and less than 180 degrees , more preferably 175 degrees. In this way, the brightness of the entire low-beam beam pattern can be ensured while increasing the center brightness of the low-beam beam pattern, so that the low-beam light pattern can be further improved while making the low-beam lighting meet the legal requirements.
  • the included angle ⁇ between the imaginary extension surface of the second low-beam reflecting surface 3015 toward the low-beam rear end portion 3012 and the first low-beam reflecting surface 3014 at the connecting portion 3013 of the low-beam reflecting surface is greater than 0 degrees and less than 30 degrees. degrees, preferably greater than 0 degrees and less than 10 degrees, more preferably 5 degrees, as shown in FIG. 7 .
  • the low-beam light emitted from the low-beam light source 10 can be guided to a cut-off line structure closer to the light distribution member 30 through the reflection of the low-beam light by the first low-beam reflecting surface 3014 .
  • the angle between the first low-beam reflecting surface 3014 and the second low-beam reflecting surface 3015 can be specifically configured according to the desired low-beam beam shape.
  • the lamp unit 1 may further include a low beam primary optical element 11 , and the low beam primary optical element 11 may be arranged to converge the low beam light emitted from the low beam light source 10 collimation.
  • the low beam primary optical element 11 can be arranged close to the low beam rear end 3012 of the light distribution member 30, and the low beam primary optical element 11 can include a low beam primary optical element light incident surface 111 and a low beam primary optical element light exit surface 112.
  • the light incident surface 111 of the primary optical element may be disposed in front of the light exit surface 100 of the low beam light source. In some implementations, at least a part of the light incident surface 111 of the low beam primary optical element may face the low beam light source light exit surface 100 .
  • the light rays are converged and collimated.
  • the high-beam primary optical element 21 can be arranged above the high-beam light source 20 , close to the high-beam front end 3021 and below the high-beam reflective surface 302 .
  • At least one of the low-beam light source 10 and the high-beam light source 20 may include an LED to have a smaller light emitting area and higher photoelectric conversion efficiency.
  • the embodiments of the low beam light source 10 and the high beam light source 20 are not limited thereto.
  • at least one of the low beam light source 10 and the high beam light source 20 may also include a halogen lamp, a xenon lamp, or the like.
  • the low beam primary optical element 11 may be a concentrating cup-shaped element, as shown in FIGS. 1 and 2 .
  • the condenser cup-shaped element can be in the shape of a horn or a bowl comprising a large-diameter end and a small-diameter end, wherein the large-diameter end of the condenser cup-shaped element is arranged close to the low-beam rear end 3012, and the low-beam light source 10 is close to the condenser.
  • the small diameter end of the optical cup-shaped element is provided.
  • the low beam primary optical element 11 may include a plurality of light-concentrating cup-shaped elements arranged side by side along the left-right direction. In the embodiment shown in FIGS.
  • the low beam primary optical element 11 comprises three focusing cup-shaped elements.
  • the number of condensing cup-shaped elements corresponds to the number of low beam light sources 10 and is not limited to three.
  • the structure of the low beam primary optical element 11 is not limited thereto.
  • the low beam primary optical element 11 may also be a reflector or the like.
  • the low beam primary optical element 11 and the high beam primary optical element 21 can be omitted.
  • the LEDs serving as the low-beam light source 10 and the high-beam light source 20 can directly emit low-beam light and high-beam light toward the low-beam reflective surface and the high-beam reflective surface.
  • the high beam light source 20 may include a plurality of high beam LEDs that can be turned on and off independently, and the lamp unit 1 may be configured to: when it is detected that there is a road user 2 in front of the vehicle including the lamp unit 1 , Turning off at least one high beam LED among the plurality of high beam LEDs.
  • ADB Adaptive Driving Beam
  • the high beam primary optical element 21 may include a plurality of microlenses matched with the plurality of high beam LEDs in a one-to-one manner.
  • each part L is matched with one and only one part M.
  • each microlens matches one and only one LED.
  • the microlens is a matrix microlens, and the material of the microlens is not limited.
  • microlenses can be made of transparent materials such as silica gel, PC, glass, PMMA, etc.
  • the high-beam light emitted from the high-beam light source 20 is converged and collimated by the high-beam primary optical element 21 including microlenses, and then projected to the high-beam reflective surface 302 of the light distribution member 30 .
  • the high-beam reflection surface 302 of the light distribution member 30 may include multiple curved surfaces connected to each other, and the multiple curved surfaces may be matched with the multiple microlenses 201 in a one-to-one manner.
  • each curved surface of the high-beam reflecting surface 302 may be a convex surface protruding outward relative to the high-beam primary optical element 21 .
  • the convex surface may be a cylindrical surface.
  • each curved surface of the high-beam reflecting surface 302 may be a concave surface inwardly recessed relative to the direction of the high-beam primary optical element 21 .
  • the high beam reflecting surface 302 may also be a plane. It should be understood that the shape of the high-beam reflecting surface 301 can be specifically selected according to the actual light distribution design, so as to meet the lighting requirements of vehicle headlights.
  • the specific shape of the light distribution member 30 is not limited.
  • the light distribution member 30 is shown as having a substantially triangular cross-sectional shape in FIGS.
  • the low-beam reflective surface 301 capable of emitting the low-beam light emitted by the low-beam light source 10 and the high-beam reflective surface 302 for emitting the high-beam light emitted by the high-beam light source 20 are sufficient.
  • the specific positions of the low beam light source 10 and the high beam light source 20 can be appropriately adjusted corresponding to different shapes of the light distribution member 30 to obtain a desired low beam Beam shape and desired high beam shape.
  • At least one of the low-beam reflective surface 301 and the high-beam reflective surface 302 may be provided with a reflectance for increasing the reflectivity of the corresponding low-beam light rays and/or high-beam light rays emitted from the at least one.
  • the reinforcing structure may be aluminum plated on the low-beam reflective surface 301 and/or the high-beam reflective surface 302 . It should be noted that the configuration of the reinforcement structure is not limited thereto. For example, other materials capable of enhancing light reflectivity may be coated on the low-beam reflective surface 301 and/or the high-beam reflective surface 302 .
  • part of the low-beam light emitted from the low-beam light source 10 can be directed toward the front of the vehicle, while the other part of the low-beam light can be reflected by the low-beam reflective surface 301 and guided toward the front of the vehicle.
  • the low beam light emitted from the low beam light source 10 can first be converged and collimated by the low beam primary optical element 11, and a part of the low beam light in the collimated low beam light can be It can be directly projected to the lens 40, wherein the low-beam light projected to the cut-off line structure will form the cut-off line A1 of the low-beam light shape A after being projected by the lens 40 (ie, the upper boundary of the light shape); in addition, the converged and collimated Another part of the low beam light can be projected onto the low beam reflective surface 301 (the first low beam reflective surface 3014 and the second low beam reflective surface 3015 ) of the light distribution element and reflected to the lens through the low beam reflective surface 301 40, and then refracted to the front of the vehicle through the lens.
  • the low beam reflective surface 301 the first low beam reflective surface 3014 and the second low beam reflective surface 3015
  • part of the high-beam light emitted from the high-beam light source 20 may be reflected by the high-beam reflective surface 302 and guided toward the front of the vehicle.
  • a part of the high-beam light emitted from the high-beam light source 20 can be directly guided toward the front of the vehicle without being reflected by the high-beam reflective surface 302 .
  • the high beam light emitted from the high beam light source 20 can first be converged and collimated by the high beam primary optical element 21, and the collimated high beam Part of the high-beam light in the light can be directly projected to the lens 40, wherein the high-beam light projected to the cut-off structure will form the cut-off line of the high-beam light shape (ie, the lower boundary of the light shape) after being projected by the lens 40; in addition, Another part of the collimated high-beam light can be projected onto the high-beam reflective surface 302 of the light distribution member and reflected to the lens 40 through the high-beam reflective surface 30 , and then refracted to the front of the vehicle through the lens 40 .
  • a headlamp including the lamp unit described above and a vehicle including the same. It can be understood that the headlamp and the vehicle provided by the present disclosure can at least realize various advantages described above with respect to the lamp unit 1 .
  • the present disclosure provides a lamp unit for a headlamp, a headlamp including the lamp unit, and a vehicle including the headlamp.
  • the lamp unit includes: a low-beam light source configured to emit low-beam light; a high-beam light source configured to emit high-beam light; and a light distribution part, which includes a low-beam reflective surface and The high-beam reflective surface, the low-beam reflective surface is configured to reflect a part of the low-beam light in the low-beam light and guide it toward the front of the lamp unit, and the high-beam reflective surface is configured to reflect a part of the high-beam light in the high-beam light and toward the lamp unit and a lens, the lens is arranged in the front direction of the light distribution part, and is configured to refract the low beam light and the high beam light to the front of the vehicle including the headlight, wherein the low beam reflection surface includes the low beam The front end and the opposite low beam rear end, and the high beam reflective surface includes a high beam front
  • the light unit, headlamp and vehicle provided by the present disclosure are reproducible and can be used in a variety of industrial applications.

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

Abstract

一种用于前照灯的灯具单元（1）、包括灯具单元（1）的前照灯以及包括前照灯的车辆。灯具单元（1）包括：近光光源（10），近光光源（10）配置成用于发出近光光线；远光光源（20），远光光源（20）配置成用于发出远光光线；以及配光件（30），配光件（30）包括近光反射面（301）和远光反射面（302），近光反射面（301）构造成将近光光线中的一部分近光光线反射并朝向灯具单元（1）的前方引导，远光反射面（302）构造成将远光光线中的一部分远光光线反射并朝向灯具单元（1）的前方引导；以及透镜（40），透镜（40）设置在配光件（30）的前端方向，并且配置成用于将近光光线和远光光线折射到包括前照灯的车辆的前方，其中，近光反射面（301）包括近光前端部（3011）和相反的近光后端部（3012），并且远光反射面（302）包括远光前端部（3021）和与远光前端部（3021）相反的且在竖向方向上低于远光前端部（3021）的远光后端部（3022），近光前端部（3011）与远光前端部（3021）边缘重合形成截止线结构；近光光源（10）靠近于近光后端部（3012）设置，并且设置成在竖向方向上高于近光后端部（3012）；以及远光光源（20）靠近远光前端部（3021）并位于远光反射面（302）的下方设置，远光光源（20）设置成在竖向方向上低于远光反射面（302）。

Description

灯具单元、前照灯和车辆 技术领域
本公开总体上涉及灯具单元、包括该灯具单元的前照灯和包括该前照灯的车辆。
背景技术
本部分提供了与本公开有关的背景信息，但是这些信息并不必然构成现有技术。
用于车辆的前照灯通常包括用于实现近光功能的近光光源和用于实现远光功能的远光光源。近光功能用于近距离照明，以使驾驶员能够辨明车辆前方100米以内的路面上的任何障碍物，而远光功能用于远距离照明，以使驾驶员的视觉开阔。为了保障行车安全，通常需要使车辆的远光照明距离大于100米。
在相关技术中，近光光源和远光光源之间的距离较近，导致在使用前照灯时近光光源和远光光源发出的热量较集中，前照灯的耐热性较差。例如，专利文献CN112113181A提出了一种能够利用一个光源基板来进行近光配光和远光配光下的照明的灯具单元。然而，在该专利文献所提出的灯具单元中，近光光源和远光光源被搭载于同一光源基板上，导致近光光源和远光光源发出的热量都将集中于该光源基板附近，使得耐热性较差，影响灯具单元的寿命。
发明内容
本部分提供本公开的一般概要，而不是本公开的全部范围或全部特征的全面披露。
本公开的目的在于提供一种能够改善耐热性且能够实现远近光一体照明功能的用于车辆前照灯的灯具单元。
本公开的另一目的在于提供一种能够提高近光明暗截止线附近区域的亮度的用于车辆前照灯的灯具单元。
本公开的又一目的还在于能够提供一种能够适用于自适应远光灯照明的用于车辆前照灯的灯具单元。
本公开的示例性实施方式提供了一种用于前照灯的灯具单元，灯具单元可以包括：近光光源，近光光源可以配置成用于发出近光光线；远光光源，远光光源可以配置成用于发出远光光线；以及配光件，配光件可以包括近光反射面和远光反射面，近光反射面可以构造成将近光光线中的一部分近光光线反射并朝向灯具单元的前方引导，远光反射面可以构造成将远光光线中的一部分远光光线反射并朝向灯具单元的前方引导；以及透镜，透镜可以设置在配光件的前端方向，并且可以配置成用于将近光光线和远光光线折射到包括该前照灯的车辆的前方，其中，近光反射面可以包括近光前端部和相反的近光后端部，并且远光反射面可以包括远光前端部和与远光前端部相反的且在竖向方向上低于远光前端部的远 光后端部，近光前端部可以与远光前端部边缘重合形成截止线结构；近光光源可以靠近于近光后端部设置，并且可以设置成在竖向方向上高于近光后端部；以及远光光源可以靠近远光前端部并位于远光反射面的下方设置，远光光源可以设置成在竖向方向上低于远光反射面。
在一些实施方式中，在近光前端部与近光后端部之间可以设置有近光反射面连接部，近光反射面可以包括从近光后端部延伸至近光反射面连接部的第一近光反射面以及从近光前端部延伸至近光反射面连接部的第二近光反射面；以及近光反射面连接部可以在竖向方向上低于近光后端部，并且第一近光反射面可以与第二近光反射面在近光反射面连接部处形成一夹角。
在一些实施方式中，第一近光反射面与第二近光反射面在近光反射面连接部处的夹角的锐角可以大于150度且小于180度。
在一些实施方式中，第一近光反射面与第二近光反射面在近光反射面连接部处的夹角的锐角可以大于170度且小于180度。
在一些实施方式中，第一近光反射面与第二近光反射面在近光反射面连接部处的夹角的锐角可以为175度。
在一些实施方式中，沿从近光后端部朝向近光前端部的方向，近光反射面连接部可以设置在近光反射面的三分之一至二分之一处。
在一些实施方式中，灯具单元还可以包括近光初级光学元件和远光初级光学元件，近光初级光学元件可以配置成对从近光光源发出的近光光线进行汇聚准直，远光初级光学元件可以配置成用于对从远光光源发出的远光光线进行汇聚准直，近光初级光学元件可以设置于近光光源的前方，近光初级光学元件可以布置成在竖向方向上高于近光后端部，以及远光初级光学元件可以设置于远光光源的上方，且靠近远光前端部并位于远光反射面的下方。
在一些实施方式中，近光初级光学元件可以为聚光杯状元件或反射镜。
在一些实施方式中，远光光源可以包括能够独立地被打开及关闭的多个远光LED；以及灯具单元可以配置成：当检测到在包括前照灯的车辆的前方存在道路使用者时，将多个远光LED中的至少一个远光LED关闭。
在一些实施方式中，灯具单元可以包括配置成用于对从远光光源发出的远光光线进行汇聚准直的远光初级光学元件，远光初级光学元件可以包括与多个远光LED以一一对应的方式相匹配的多个微透镜，并且远光反射面可以包括彼此连接的多个曲面，多个曲面可以与多个微透镜以一一对应的方式相匹配。
在一些实施方式中，每个曲面可以为相对远光初级光学元件向外凸出的凸面。
在一些实施方式中，向远光初级光学元件向外凸出的凸面可以为柱形面。
在一些实施方式中，每个曲面可以为相对远离远光初级光学元件的方向向内凹进的凹面。
在一些实施方式中，远光反射面可以为平面。
在一些实施方式中，近光光源可以为至少一个近光LED。
在一些实施方式中，远光反射面和近光反射面中的至少一者可以设置有用于使相应的远光光线和/或近光光线的反射率增大的增强结构。
在一些实施方式中，增强结构可以为镀覆在至少一者上的铝。
本公开的实例性实施方式还提供了一种用于车辆的前照灯，其中，该前照灯可以包括根据前述实施方式所提供的灯具单元。
本公开的实例性实施方式还提供了一种车辆，其中，该车辆可以包括根据前述实施方式所提供的前照灯。
根据上述构型，近光光源可以靠近于近光后端部设置并且可以设置成在竖向方向上高于近光后端部，而远光光源可以靠近远光前端部并位于远光反射面的下方设置，并且远光光源设置成在竖向方向上低于远光反射面。以此方式，近光光源和远光光源在竖向方向(上下方向)和水平方向(前后方向)上均被间隔开，从而可以将近光光源与远光光源间隔开较大的距离，使得热源较分散，并且因此，使得灯具单元可以在实现远近光一体照明的同时具有较好的耐热性能。
此外，根据上述构型，第一近光反射面与第二近光反射面在近光反射面连接部处形成一夹角，并且近光反射面连接部在竖向方向上低于近光后端部。以此方式，可以通过配光件将从近光光源发出的近光光线中的一部分近光光线引导成更靠近配光件的截止线结构，从而使得灯具单元的近光光形的明暗截止线附近区域的亮度更高。
另外，根据上述构型，远光光源包括能够独立地被打开及关闭的多个远光LED，并且灯具单元可以配置成当检测到在包括前照灯的车辆的前方存在道路使用者时将多个远光LED中的至少一个远光LED关闭。以此方式，多个远光LED能够单独寻址控制关闭和开启，从而实现自适应远光照明模式。
附图说明
通过以下参照附图的描述，本公开的实施方式的特征和优点将变得更加容易理解，附图并非按比例绘制，可放大或缩小一些特征以显示特定部件的细节，在附图中：
图1为示出了根据本公开的示例性实施方式的用于前照灯的灯具单元的分解立体图。
图2为示出了根据本公开的示例性实施方式的用于前照灯的灯具单元的侧视立体图。
图3为示出了根据本公开的示例性实施方式的用于前照灯的灯具单元的俯视图。
图4为示出了根据本公开的示例性实施方式的用于前照灯的灯具单元的沿着图3中的线A-A所截取的截面图。
图5为示出了根据本公开的示例性实施方式的用于前照灯的灯具单元的光线走向的示意图。
图6为示出了根据本公开的示例性实施方式的灯具单元的前照灯的近光光形的示意图。
图7为示出了根据本公开的两种不同的示例性实施方式的近光反射面的示意图。
图8为示出了根据本公开的示例性实施方式的用于前照灯的灯具单元的近光和自适应远光的光形示意图。
具体实施方式
下面将参照附图借助于示例性实施方式对本公开进行详细描述。要注意的是，对本公开的以下详细描述仅仅是出于说明目的，而绝不是对本公开的限制。此外，在各个附图中采用相同的附图标记来表示相同的部件。
还需要说明的是，为了清楚起见，在说明书和附图中并未描述和示出实际的特定实施方式的所有特征，并且，为了避免不必要的细节模糊了本公开关注的技术方案，在附图和说明书中仅描述和示出了与本公开的技术方案密切相关的装置结构，而省略了与本公开的技术内容关系不大的且本领域技术人员已知的其他细节。
接下来，将参照附图对根据本公开的示例性实施方式所提供的用于车辆前照灯的灯具单元进行详细地描述。
图1至图4示出了根据本公开的示例性实施方式的用于前照灯的灯具单元1。参照图1至图4，灯具单元1可以包括近光光源10和远光光源20，近光光源10可以配置成用于发出近光光线，并且远光光源20可以配置成用于发出远光光线。
如图1至图4中所示，灯具单元1还可以包括配光件30和设置在配光件30的前端方向的透镜40，透镜40可以配置成用于将从近光光源10发出的近光光线和从远光光源20发出的远光光线折射到包括灯具单元1的车辆的前方，如图5中所示。
在一些实施方式中，配光件30可以包括近光反射面301，近光反射面301可以构造成将从近光光源10发出的近光光线中的一部分近光光线反射并朝向灯具单元1的前方引导，如图5中所示。参照图1至图5，近光反射面301可以包括近光前端部3011和与近光前端部3011相反的近光后端部3012。
在一些实施方式中，配光件30还可以包括远光反射面302，远光反射面302构造成将从远光光源20发出的远光光线中的一部分远光光线反射并朝向灯具单元1的前方引导，如图5中所示。远光反射面302包括远光前端部3021和与远光前端部3021相反的且在竖向方向上低于远光前端部3021的远光后端部3022，其中竖向方向为图1中所示的上下方向。 远光前端部3021与近光前端部3011边缘重合而形成截止线结构，如图1至5中所示。
参照图1至图5，在示例性实施方式中，近光光源10可以靠近近光后端部3012设置，并且近光光源10可以设置成在竖向方向上高于近光后端部3012。可以理解的是，在一些实施方式中，近光光源10可以包括近光光源出光面100，并且近光光源出光面100可以设置成在竖向方向上高于近光后端部3012。
参照图2至图5，在一些实施方式中，远光光源20可以靠近远光前端部3021并位于远光反射面302的下方设置，并且远光光源20可以设置成在竖向方向上低于远光反射面302。可以理解的是，在一些实施方式中，远光光源20可以包括远光光源出光面200，并且远光光源出光面200设置成在竖向方向上低于远光反射面302，如图4和图5中所示。
根据本公开的示例性实施方式，近光光源10靠近配光件30的近光反射面301的近光后端部3012且设置成在竖向方向上高于近光后端部3012，并且远光光源20靠近远光前端部3021并位于远光反射面302的下方设置。以此方式，近光光源10和远光光源20在竖向方向(上下方向)和水平方向(前后方向)上均被间隔开，从而将近光光源10与远光光源20间隔开较大的距离，使得热源较分散，并且因此，使得灯具单元1在实现远近光一体照明的同时具有较好的耐热性能，从而提高了灯具单元1的使用寿命。
图6为示出了根据本公开的示例性实施方式的灯具单元1的近光光形A的示意图。参照图5和图6中所示，从近光光源10发出的近光光线中的一部分近光光线被照射至配光件30的截止线结构，从而形成近光光形A的明暗截止线A1，其中明暗截止线A1指示近光光形A的上边界。应当指出的是，明暗截止线A1附近区域的亮度越高，即近光中部光形A2的照度越高，前照灯近光的远处可视性将越好。
向回参照图1至图4，在一些实施方式中，在近光反射面301的近光前端部3011与近光后端部3012之间可以设置有近光反射面连接部3013。根据示例性实施方式，沿从近光后端部3012朝向近光前端部3011的方向，近光反射面连接部3013可以设置在近光反射面301的三分之一至二分之一处。以此方式，能够在提高近光光形的中心亮度的同时确保整个近光光形的亮度，从而在使近光照明满足法规要求的同时进一步改善近光光形。近光反射面301可以包括从近光后端部3012延伸至近光反射面连接部3013的第一近光反射面3014以及从近光前端部3011延伸至近光反射面连接部3013的第二近光反射面3015。
根据示例性实施方式，近光反射面连接部3013在竖向方向上低于近光后端部3012。换言之，第一近光反射面3014相对于第二近光反射面3015向后上方倾斜，如图1至图4中所示。以此方式，通过第一近光反射面3014的反射作用，能够将更多的近光光线引导至靠近配光件30的截止线结构的区域，进而使得近光光形A的明暗截止线A1附近区域的亮度更高。接下来将参照图7对此进行详细的说明。
图7为示出了根据本公开的两种不同的示例性实施方式的近光反射面301的示意图。在一些实施方式中，第一近光反射面3014’与第二近光反射面3015可以位于相同的平面上，例如，在图7中由虚线示出的第一近光反射面3014’与由实线示出的第二近光反射面3015位于同一平面上，并且虚线箭头R’指示了在这种情况下的近光光线走向。
在另一些实施方式中，第一近光反射面3014与第二近光反射面3015可以不在同一平面上，而是在近光反射面连接部3013处形成一夹角。例如，在图7中由实线示出的第一近光反射面3014与由实线示出的第二近光反射面3015之间形成一夹角，并且实线箭头R指示了存在夹角的情况下的近光光线走向。
如在图7中所观察到的，对于同一入射光线，即对于从近光光源10发出的同一近光光线，相对于虚线箭头R’所指示的近光光线走向，实线箭头R所指示的近光光线走向将更靠近配光件30的截止线结构。因而，当第一近光反射面3014与第二近光反射面3015在近光反射面连接部3013处形成一夹角时，近光光形A的明暗截止线A1附近区域的亮度更高，即近光中部光形A2的照度更高，前照灯近光的远处可视性也将越好。
根据示例性实施方式，第一近光反射面3014与第二近光反射面3015在近光反射面连接部3013处的夹角大于150度且小于180度，优选地大于170度且小于180度，更优选地为175度。以此方式，能够在提高近光光形的中心亮度的同时确保整个近光光形的亮度，从而在使近光照明满足法规要求的同时进一步改善近光光形。换言之，第二近光反射面3015的朝向近光后端部3012的方向的假想延伸面与第一近光反射面3014在近光反射面连接部3013处的夹角α大于0度且小于30度，优选地大于0度且小于10，更优选地为5度，如图7中所示。在这种情况下，可以通过第一近光反射面3014对近光光线的反射作用而将从近光光源10发出的近光光线引导成更靠近配光件30的截止线结构。应当指出的是，第一近光反射面3014和第二近光反射面3015之间的夹角可以根据所期望的近光光形来具体地配置。
向回参照图1至图5，在一些实施方式中，灯具单元1还可以包括近光初级光学元件11，近光初级光学元件11可以设置成对从近光光源10发出的近光光线进行汇聚准直。近光初级光学元件11可以靠近配光件30的近光后端部3012设置，并且近光初级光学元件11可以包括近光初级光学元件入光面111和近光初级光学元件出光面112，近光初级光学元件入光面111可以设置于近光光源出光面100的前方。在一些实施方式中，近光初级光学元件入光面111的至少一部分可以面向近光光源出光面100。
在一些实施方式中，如图1至图5中所示，灯具单元1还可以包括远光初级光学元件21，远光初级光学元件21可以配置成用于对从远光光源20发出的远光光线进行汇聚准直。远光初级光学元件21可以设置于远光光源20的上方，且靠近远光前端部3021并位于远光 反射面302的下方。
在一些实施方式中，近光光源10和远光光源20中的至少一者可以包括LED，以具有较小的发光面积和较高的光电转换效率。然而，应当指出的是，近光光源10和远光光源20的实施方式并不限于此。例如，近光光源10和远光光源20中的至少一者也可以包括卤素灯、氙气灯等。
在一些实施方式中，近光初级光学元件11可以为聚光杯状元件，如图1和图2中所示。该聚光杯状元件可以呈包括大直径端和小直径端的喇叭形或碗形，其中聚光杯状元件的大直径端靠近于近光后端部3012设置，并且近光光源10靠近于聚光杯状元件的小直径端设置。在一些实施方式中，近光初级光学元件11可以包括沿左右方向并排布置的多个聚光杯状元件。在图1至图3示出的实施方式中，近光初级光学元件11包括三个聚光杯状元件。然而，可以理解的是，聚光杯状元件的数量对应于近光光源10的数量，并且不限于三个。此外，还应当指出的是，近光初级光学元件11的结构也不限于此。例如，近光初级光学元件11也可以为反射镜等。
应当指出的是，根据灯具单元1的具体设置，近光初级光学元件11和远光初级光学元件21可以被省去。例如，作为近光光源10和远光光源20的LED可以朝向近光反射面和远光反射面直接发射近光光线和远光光线。
优选地，远光光源20可以包括能够独立地被打开及关闭的多个远光LED，灯具单元1可以被配置成：当检测到在包括灯具单元1的车辆的前方存在道路使用者2时，将所述多个远光LED中的至少一个远光LED关闭。以此方式，多个远光LED能够单独寻址控制关闭和开启，从而实现自适应(ADB，Adaptive Driving Beam)远光照明模式。如图8中所示，当道路前方出现其他道路使用者2时，远光LED中的至少一部分LED被关闭，从而在自适应远光光形B中形成局部暗区，进而避免了其他道路使用者2眩目，这尤其是在前方道路中存在对向来车的情况下，能够避免驾驶员眩目，从而极大地提高了道路行车的安全性。
在一些实施方式中，远光初级光学元件21可以包括与所述多个远光LED以一一对应的方式相匹配的多个微透镜。
应当理解的是，在本文中，当使用表述“部件L与部件M以一一对应的方式相匹配”时，应当被理解为每个部件L与一个且唯一一个部件M相匹配。例如，在此应当理解的是，每个微透镜与一个且唯一一个LED相匹配。在示例性实施方式中，微透镜为矩阵式微透镜，并且微透镜的材料是不受限制的。例如，微透镜可以由硅胶、PC、玻璃、PMMA等透明材料制成。根据本公开的示例性实施方式，从远光光源20发出的远光光线经由包括微透镜的远光初级光学元件21的汇聚准直后被投射至配光件30的远光反射面302。
在一些实施方式中，配光件30的远光反射面302可以包括彼此连接的多个曲面，多个曲面可以与多个微透镜201以一一对应的方式相匹配。根据示例性实施方式，远光反射面302的每个曲面可以为相对远光初级光学元件21向外凸出的凸面。优选地，凸面可以为柱形面。替代性地，远光反射面302的每个曲面可以为相对远光初级光学元件21的方向向内凹进的凹面。在另一些实施方式中，远光反射面302也可以为平面。应当理解的是，可以根据实际配光设计来具体选择远光反射面301的形状，以符合车辆前照灯的照明要求。
应当指出的是，配光件30的具体形状是不受限制的。例如，尽管配光件30在图1至图5中被示出为具有大致三角形的截面形状，然而可以设想的是，配光件30可以具有任何其他形状，只要配光件30设置有如上所述的能够对近光光源10发出的近光光线进行发射的近光反射面301以及用于对远光光源20发出的远光光线进行发射的远光反射面302即可。应当理解的是，在不背离本公开的范围的情况下，对应于不同形状的配光件30，近光光源10和远光光源20的具体位置可以被适当地调节，以获得期望的近光光形和期望的远光光形。
在一些实施方式中，近光反射面301和远光反射面302中的至少一者可以设置有用于使从所述至少一者发出的相应的近光光线和/或远光光线的反射率增大的增强结构，从而使得车辆远处的近光和/或远光的可视性更好。在一些实施方式中，增强结构可以为镀覆在近光反射面301和/或远光反射面302上的铝。应当指出的是，增强结构的设置不限于此。例如，可以在近光反射面301和/或远光反射面302上镀覆能够增强光线反射率的其他材料。
在此，将再次参照图5对根据本公开的示例性实施方式的灯具单元1的近光光路和远光光路进行详细的描述。
首先将对从近光光源10发出的近光光线的光路进行描述。参照图5，从近光光源10发出的近光光线中的一部分近光光线可以直接朝向车辆的前方引导，而另一部分近光光线可以经由近光反射面301反射后并朝向车辆的前方引导。在设置有近光初级光学元件11的情况下，从近光光源10发出的近光光线可以首先由近光初级光学元件11汇聚准直，经汇聚准直的近光光线中的一部分近光光线可以直接投射至透镜40，其中投射至截止线结构的近光光线经透镜40投射后将形成近光光形A的明暗截止线A1(即光形的上边界)；此外，经汇聚准直的近光光线中的另一部分近光光线可以被投射至配光件的近光反射面301(第一近光反射面3014和第二近光反射面3015)并经由近光反射面301反射至透镜40，随后再经由透镜折射至车辆的前方。
接下来，将对从远光光源20发出的远光光线的光路进行描述。参照图5，从远光光源20发出的远光光线中的一部分远光光线可以经由远光反射面302反射并朝向车辆的前方引导。尽管在附图中未示出，然而可以理解的是，从远光光源20发出的远光光线中的一部分 远光光线可以不经由远光反射面302的反射而直接朝向车辆的前方引导。此外，可以理解的是，在设置有远光初级光学元件21的情况下，从远光光源20发出的远光光线可以首先由远光初级光学元件21汇聚准直，经汇聚准直的远光光线中的一部分远光光线可以直接投射至透镜40，其中投射至截止线结构的远光光线经透镜40投射后将形成远光光形的明暗截止线(即光形的下边界)；此外，经汇聚准直的远光光线中的另一部分远光光线可以被投射至配光件的远光反射面302并经由远光反射面30反射至透镜40，随后再经由透镜40折射至车辆的前方。
根据本公开的示例性实施方式，还提供了一种包括上述灯具单元的前照灯以及包括该前照灯的车辆。可以理解的是，本公开所提供的前照灯和车辆至少能够实现以上关于灯具单元1所描述的各种优点。
工业实用性
本公开提供了一种用于前照灯的灯具单元、包括该灯具单元的前照灯以及包括该前照灯的车辆。灯具单元包括：近光光源，近光光源配置成用于发出近光光线；远光光源，远光光源配置成用于发出远光光线；以及配光件，配光件包括近光反射面和远光反射面，近光反射面构造成将近光光线中的一部分近光光线反射并朝向灯具单元的前方引导，远光反射面构造成将远光光线中的一部分远光光线反射并朝向灯具单元的前方引导；以及透镜，透镜设置在配光件的前端方向，并且配置成用于将近光光线和远光光线折射到包括该前照灯的车辆的前方，其中，近光反射面包括近光前端部和相反的近光后端部，并且远光反射面包括远光前端部和与远光前端部相反的且在竖向方向上低于远光前端部的远光后端部，近光前端部与远光前端部边缘重合形成截止线结构；近光光源靠近于近光后端部设置，并且设置成在竖向方向上高于近光后端部；以及远光光源靠近远光前端部并位于远光反射面的下方设置，远光光源设置成在竖向方向上低于远光反射面。
此外，可以理解的是，本公开所提供的灯具单元、前照灯以及车辆是可以重现的，并且可以用在多种工业应用中。

Claims (17)

  1. 一种用于前照灯的灯具单元(1)，所述灯具单元(1)包括：
    近光光源(10)，所述近光光源(10)配置成用于发出近光光线；
    远光光源(20)，所述远光光源(20)配置成用于发出远光光线；
    配光件(30)，所述配光件(30)包括：近光反射面(301)，所述近光反射面(301)构造成将所述近光光线中的一部分近光光线反射并朝向所述灯具单元(1)的前方引导；以及远光反射面(302)，所述远光反射面(302)构造成将所述远光光线中一部分远光光线反射并朝向所述灯具单元(1)的前方引导；以及
    透镜(40)，所述透镜(40)设置在所述配光件(30)的前端方向，并且配置成用于将所述近光光线和所述远光光线折射到包括所述前照灯的车辆的前方，
    其中，所述近光反射面(301)包括近光前端部(3011)和相反的近光后端部(3012)，并且所述远光反射面(302)包括远光前端部(3021)和与所述远光前端部(3021)相反的且在竖向方向上低于所述远光前端部(3021)的远光后端部(3022)，所述近光前端部(3021)与所述远光前端部(3022)边缘重合形成截止线结构；
    所述近光光源(10)靠近所述近光后端部(3012)设置，所述近光光源(10)设置成在所述竖向方向上高于所述近光后端部(3012)；以及
    所述远光光源(20)靠近所述远光前端部(3021)并且位于所述远光反射面(302)的下方设置，
    所述远光光源(20)设置成在所述竖向方向上低于所述远光反射面(302)。
  2. 根据权利要求1所述的用于前照灯的灯具单元(1)，其中：
    在所述近光前端部(3011)与所述近光后端部(3012)之间设置有近光反射面连接部(3013)，所述近光反射面(301)包括从所述近光后端部(3012)延伸至所述近光反射面连接部(3013)的第一近光反射面(3014)以及从所述近光前端部(3011)延伸至所述近光反射面连接部(3013)的第二近光反射面(3015)；以及
    所述近光反射面连接部(3013)在所述竖向方向上低于所述近光后端部(3012)，所述第一近光反射面(3014)与所述第二近光反射面(3015)在所述近光反射面连接部(3013)处形成一夹角。
  3. 根据权利要求2所述的用于前照灯的灯具单元(1)，其中：
    所述夹角大于150度且小于180度，优选地大于170度且小于180度，更优选地为175度。
  4. 根据权利要求2或3所述的灯具单元(1)，其中，沿从所述近光后端部(3012)朝 向所述近光前端部(3011)的方向，所述近光反射面连接部(3013)设置在所述近光反射面(301)的三分之一至二分之一处。
  5. 根据权利要求1至4中的任一项所述的用于前照灯的灯具单元(1)，其中，所述灯具单元(1)还包括近光初级光学元件(11)和远光初级光学元件(21)，所述近光初级光学元件(11)配置成对从所述近光光源(10)发出的所述近光光线进行汇聚准直，所述远光初级光学元件(21)配置成用于对从所述远光光源(20)发出的所述远光光线进行汇聚准直，
    所述近光初级光学元件(11)设置于所述近光光源(10)的前方，所述近光初级光学元件(11)布置成在所述竖向方向上高于所述近光后端部(3012)，以及
    所述远光初级光学元件(21)设置于所述远光光源(20)的上方，且靠近所述远光前端部(3021)并位于所述远光反射面(302)的下方。
  6. 根据权利要求5所述的用于前照灯的灯具单元(1)，其中，所述近光初级光学元件(11)为聚光杯状元件或反射镜。
  7. 根据权利要求1至6中的任一项所述的灯具单元(1)，其中，所述远光光源(20)包括能够独立地被打开及关闭的多个远光LED；以及
    所述灯具单元(1)配置成：当检测到在包括所述前照灯的车辆的前方存在道路使用者时，将所述多个远光LED中的至少一个远光LED关闭。
  8. 根据权利要求7所述的灯具单元(1)，其中，所述灯具单元(1)包括配置成用于对从所述远光光源(20)发出的所述远光光线进行汇聚准直的远光初级光学元件(21)，所述远光初级光学元件(21)包括与所述多个远光LED以一一对应的方式相匹配的多个微透镜，并且所述远光反射面包括彼此连接的多个曲面，所述多个曲面与所述多个微透镜以一一对应的方式相匹配。
  9. 根据权利要求8所述的灯具单元(1)，其中，每个曲面为相对所述远光初级光学元件(21)向外凸出的凸面。
  10. 根据权利要求9所述的灯具单元(1)，其中，所述凸面为柱形面。
  11. 根据权利要求8所述的灯具单元(1)，其中，每个曲面为相对所述远光初级光学元件(21)的方向向内凹进的凹面。
  12. 根据权利要求1至7中的任一项所述的灯具单元(1)，其中，所述远光反射面为平面。
  13. 根据权利要求1至12中的任一项所述的灯具单元(1)，其中，所述近光光源(10)包括至少一个近光LED。
  14. 根据权利要求1至13中的任一项所述的灯具单元(1)，其中，所述近光反射面(301) 和所述远光反射面(302)中的至少一者设置有用于使相应的所述近光光线和/或所述远光光线的反射率增大的增强结构。
  15. 根据权利要求14所述的灯具单元，其中，所述增强结构为镀覆在所述至少一者上的铝。
  16. 一种用于车辆的前照灯，其中，所述前照灯包括根据权利要求1至15中的任一项所述灯具单元(1)。
  17. 一种车辆，其中，所述车辆包括根据权利要求16所述的前照灯。
PCT/CN2021/143202 2021-12-30 2021-12-30 灯具单元、前照灯和车辆 WO2023123235A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090103323A1 (en) * 2007-10-17 2009-04-23 Koito Manufacturing Co., Ltd. Vehicular headlamp unit
CN103423685A (zh) * 2012-05-17 2013-12-04 奥斯兰姆施尔凡尼亚公司 以近光和远光输出两者且无活动部分为特征的头灯
CN103836484A (zh) * 2014-03-12 2014-06-04 奇瑞汽车股份有限公司 一种汽车前照灯灯光组
CN111076141A (zh) * 2019-12-04 2020-04-28 华域视觉科技(上海)有限公司 车灯模组及车灯
CN213542357U (zh) * 2020-12-07 2021-06-25 常熟理工学院 一种车辆大灯双光照明装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090103323A1 (en) * 2007-10-17 2009-04-23 Koito Manufacturing Co., Ltd. Vehicular headlamp unit
CN103423685A (zh) * 2012-05-17 2013-12-04 奥斯兰姆施尔凡尼亚公司 以近光和远光输出两者且无活动部分为特征的头灯
CN103836484A (zh) * 2014-03-12 2014-06-04 奇瑞汽车股份有限公司 一种汽车前照灯灯光组
CN111076141A (zh) * 2019-12-04 2020-04-28 华域视觉科技(上海)有限公司 车灯模组及车灯
CN213542357U (zh) * 2020-12-07 2021-06-25 常熟理工学院 一种车辆大灯双光照明装置

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