WO2023208065A1 - 投射组件、车灯和车辆 - Google Patents

投射组件、车灯和车辆 Download PDF

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Publication number
WO2023208065A1
WO2023208065A1 PCT/CN2023/090951 CN2023090951W WO2023208065A1 WO 2023208065 A1 WO2023208065 A1 WO 2023208065A1 CN 2023090951 W CN2023090951 W CN 2023090951W WO 2023208065 A1 WO2023208065 A1 WO 2023208065A1
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WO
WIPO (PCT)
Prior art keywords
light
section
auxiliary
projection assembly
optical unit
Prior art date
Application number
PCT/CN2023/090951
Other languages
English (en)
French (fr)
Inventor
孙渤林
唐斌斌
张士颖
Original Assignee
北京车和家汽车科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京车和家汽车科技有限公司 filed Critical 北京车和家汽车科技有限公司
Publication of WO2023208065A1 publication Critical patent/WO2023208065A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • 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
    • F21S41/32—Optical layout thereof
    • 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
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • 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
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/155—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cutoff lines
    • 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 relates to the technical field of automobile accessories, and specifically to a projection assembly, a car lamp and a vehicle.
  • the automobile low beam includes a light source, a reflector and a lens.
  • the light source, reflective surface and corresponding light incident surface form an optical unit.
  • a plurality of light sources, a plurality of reflective surfaces and a plurality of light incident surfaces form multiple optical units. In each optical unit, the light emitted by the light source is reflected by the corresponding reflective surface and then converges near the focus of the corresponding light incident surface. The light emitted by multiple light sources is finally refracted by the lens to the road surface to form illumination.
  • One part of the plurality of optical units is a main optical unit, which can form a main light shape with a light and dark cutoff line, and the other part is an auxiliary optical unit, and the auxiliary optical unit can only form an auxiliary light shape without a light and dark cutoff line.
  • the auxiliary light shapes are all located below the light-dark cutoff line of the main light shape, resulting in less energy in the upper left and upper right sides of the light shape formed by all the optical units in the car's low beam, ultimately resulting in poor road performance. .
  • the present disclosure aims to solve one of the technical problems in the related art, at least to a certain extent.
  • an embodiment of the present disclosure proposes a projection assembly to improve the road illumination effect of a vehicle lamp having the projection assembly.
  • the projection assembly of the embodiment of the present disclosure includes a plurality of optical units, each of the optical units includes a reflector and a lens, the reflector has a reflective surface; the lens has a light incident surface, and the light incident surface corresponds to the A reflective surface is provided; wherein each of the optical units has an optical axis extending along the X direction, the reflective surface and the corresponding light incident surface are arranged along the X direction, and a part of the plurality of optical units
  • the optical unit is an auxiliary optical unit, and the auxiliary optical unit satisfies the following requirements: an auxiliary low-beam cut-off line is provided on the side of the reflective surface away from the light-incident surface, and the auxiliary low-beam cut-off line includes a connected first part and The second part, the first part protrudes from the second part in a direction away from the light incident surface, and the first part is spaced apart from the optical axis along the Y direction.
  • the first portion includes a first segment and a second segment
  • the second portion includes a third segment
  • the first segment, the second segment, and the third segment are along the Y
  • the directions are connected in sequence
  • the first section and the third section are arranged at intervals in the Z direction
  • the second section is arranged at an angle
  • the connection between the third section and the second section forms the third section.
  • An inflection point, the connection between the first section and the second section forms a second inflection point.
  • the inclination angle of the second section is 45°; and/or at least one of the first section, the second section and the third section is a straight line; and/or the At least one of the first section, the second section and the third section is a curve.
  • another part of the optical units among the plurality of optical units is a main optical unit, and the main optical unit satisfies the following requirements: the side of the reflective surface away from the light incident surface is provided with a main low beam. cut-off line, the main low-beam cut-off line includes a connected third part and a fourth part, the third part is arranged protruding from the fourth part along the side away from the light incident surface, the third part The connection with the fourth part forms a third inflection point, and the third inflection point is located on the optical axis; wherein the first part, the second part, the third part and the fourth part The parts are arranged alternately along the Y direction.
  • the connection between the first part and the second part forms a first inflection point, and the distance between the first inflection point and the optical axis is L1, so
  • the size of the reflective surface in the Y direction is L01, and the ratio of L1 to L01 is 0.1 to 0.35.
  • the number of the primary optical units is multiple, and the auxiliary optical unit is located between two adjacent primary optical units in the Y direction.
  • the optical axis of the auxiliary optical unit intersects the geometric centerline of the reflective surface.
  • the lens has a light exit surface corresponding to the light entrance surface, the light entrance surface is a light entrance surface collimated in the Y direction, and the light exit surface is a light exit surface collimated in the Z direction.
  • the reflective surface is a paraboloid; and/or the size of the reflective surface in the Y direction is 5 mm to 15 mm; and/or the focal length of the reflective surface is 0.5 mm to 3 mm.
  • An embodiment of the present disclosure provides a vehicle lamp to improve the road illumination effect of the vehicle lamp.
  • the vehicle lamp according to the embodiment of the present disclosure includes the projection assembly described in any of the above embodiments.
  • Embodiments of the present disclosure provide a vehicle to improve the safety of the vehicle.
  • the vehicle according to the embodiment of the present disclosure includes the vehicle lamp described in any of the above embodiments.
  • the auxiliary optical unit can form an auxiliary light shape
  • the auxiliary low beam cutoff line can form an auxiliary light and dark cutoff line in the auxiliary light shape. Since the first part protrudes from the second part in a direction away from the light incident surface, Make part of the auxiliary cut-off line higher than the other part, that is, part of the auxiliary cut-off line is located on the upper right or upper left side of the low beam cut-off line, so that the auxiliary optical unit can be used to increase the upper left side of the light shape formed by the projection assembly and/or energy on the upper left side.
  • Figure 1 is a perspective view of a projection assembly according to an embodiment of the present disclosure.
  • Figure 2 is a front view of a projection assembly according to an embodiment of the present disclosure.
  • Figure 3 is a top view of a projection assembly according to an embodiment of the present disclosure.
  • FIG. 4 is a perspective view of the auxiliary optical unit in FIG. 3 .
  • FIG. 5 is a front view of the auxiliary optical unit in FIG. 3 .
  • FIG. 6 is a top view of the auxiliary optical unit in FIG. 3 .
  • Figure 7 is a schematic diagram of the optical path of the auxiliary optical unit in Figure 3.
  • Figure 8 is a light shape effect diagram of the auxiliary optical unit in Figure 4.
  • Figure 10 is a light shape effect diagram of an auxiliary optical unit in the related art.
  • Figure 12 is a light shape effect diagram of the main optical unit in Figure 3.
  • Figure 13 is a light shape effect diagram formed by all the optical units in Figure 3.
  • Figure 14 is an exploded view of a vehicle lamp according to an embodiment of the present disclosure.
  • Figure 15 is a front view of a vehicle lamp according to an embodiment of the present disclosure (with the radiator hidden).
  • Figure 17 is an exploded view of the lens, light blocking member and frame in Figure 14.
  • FIG. 18 is a perspective view of the lens in FIG. 14 .
  • FIG. 19 is a perspective view of the reflector in FIG. 14 .
  • FIG. 20 is a front view of the reflector in FIG. 14 .
  • FIG. 21 is a view taken along line B-B in FIG. 20 .
  • Car lights include high beam and low beam.
  • the light of the high beam is emitted in parallel.
  • the light is concentrated and bright, and can illuminate higher and farther objects.
  • the light emitted by the low beam is divergent and can illuminate close objects. objects within a larger range.
  • Car lights, as the eyes of a car, are not only related to the external image of a car owner, but are also closely related to safe driving at night or in bad weather conditions. Therefore, the road illumination effect of car lights is crucial to safe driving.
  • an auxiliary low beam cutoff line is provided on the side of the auxiliary optical unit away from the lens.
  • the auxiliary low beam cutoff line is a straight line extending in the left and right directions.
  • embodiments of the present disclosure provide a projection assembly, a vehicle lamp and a vehicle, which can effectively increase the energy of the upper left side and/or the upper right side of the light shape formed by the projection assembly, thereby improving the performance of the projection assembly.
  • the road illumination effect of the car lights is improved, thereby improving driving safety.
  • the projection assembly 100 of the embodiment of the present disclosure includes multiple optical units.
  • Each optical unit includes a reflector 1 and a lens 2.
  • the reflector 1 has a reflective surface 101
  • the lens 2 has a light incident surface 2011, which is arranged corresponding to the reflective surface 101.
  • Each optical unit has an optical axis extending along the X direction (front and back direction).
  • the reflective surface 101 and the corresponding light incident surface 2011 are arranged along the X direction.
  • Some of the optical units among the plurality of optical units are auxiliary optical units 801.
  • the auxiliary optical unit 801 satisfies the following requirements: the side of the reflective surface 101 away from the light incident surface 2011 is provided with an auxiliary low beam cutoff line 103.
  • the auxiliary low beam cutoff line 103 includes a connected first part 1030 and a second part 1034.
  • the direction of the light surface 2011 protrudes from the second part 1034, and the first part 1030 is spaced apart from the optical axis along the Y direction (left and right direction).
  • Each optical unit also includes a light source 3.
  • the light emitted by the light source 3 is reflected by the reflective surface 101 of the reflector 1 to near the focus of the light incident surface 2011 of the lens 2, and is finally refracted by the lens 2 to the road surface to form a light shape.
  • the light shape is for lighting.
  • the light shape refracted by lens 2 onto the road surface is essentially that lens 2 uses the illuminated reflective surface 101 of reflector 1 as an object and projects it to the front of the vehicle through lens 2, forming an image that is reversed in up, down, left and right directions. .
  • the optical unit has an optical axis extending in the front-to-back direction, and the front side of the reflective surface 101 is adjacent to the corresponding light incident surface 2011 , the rear side of the reflective surface 101 is far away from the corresponding light incident surface 2011.
  • the auxiliary optical unit 801 satisfies the following requirements: the rear side of the reflective surface 101 is provided with an auxiliary low beam cutoff line 103.
  • the auxiliary low beam cutoff line 103 includes a first part 1030 and a second part 1034 arranged along the left and right directions.
  • the first part 1030 protrudes rearward. Part two 1034 settings.
  • the first part 1030 is spaced apart from the optical axis in the left-right direction, or in other words, the first part 1030 is located on one side of the optical axis in the left-right direction.
  • the auxiliary optical unit 801 can form an auxiliary light shape
  • the auxiliary low beam cutoff line 103 can form an auxiliary light and dark cutoff line in the auxiliary light shape.
  • the auxiliary light and dark cutoff line is divided into a first cutoff line part and a second cutoff line part, where the first cutoff line part is formed by the first part 1030 and the second cutoff line part is formed by the second part 1034.
  • the auxiliary optical unit 801 can be used to increase the energy on the upper left side and/or the upper left side of the light shape formed by the projection assembly 100.
  • the auxiliary optical unit 801 can Compared with related technologies (as shown in FIGS.
  • the light shape formed by 801 will have more energy on the upper right side.
  • the auxiliary optical unit 801 can be used to increase the energy on the upper right side of the light shape formed by the projection assembly 100 . Therefore, the projection assembly 100 of the embodiment of the present disclosure can increase the energy of the upper right side and/or the upper left side of the light shape formed by the projection assembly 100, thereby improving the road illumination effect of the vehicle lamp with the projection assembly 100 and improving driving safety. sex.
  • the light incident surface 2011 of the auxiliary optical unit 801 is usually designed to be defocused in the left and right directions, so that the light shape broadened (the size in the left and right directions) formed by the auxiliary optical unit 801 is larger. If If a structure that can form a low beam cutoff line is provided on the auxiliary optical unit 801, the inclined part of the low beam cutoff line will be unclear, specifically, between the "elbow” and “shoulder” of the low beam cutoff line. The part is not clear, resulting in the low beam being unable to meet the usage requirements.
  • the auxiliary optical unit 801 arranges the first part 1030 and the optical axis at intervals along the left and right directions, so that the inclined part of the auxiliary light and dark cutoff line formed by the auxiliary low beam cutoff line 103 deviates from the light formed by the projection assembly 100 This can prevent the auxiliary cut-off line from affecting the inclined part of the low-beam cut-off line and ensure that the light shape formed by the projection assembly 100 can meet the usage requirements.
  • the projection assembly 100 of the embodiment of the present disclosure has the advantages of high energy on the upper left and/or upper right side of the formed light shape, and the vehicle lamp of the projection assembly 100 has a good road illumination effect.
  • the above-mentioned X direction and Y direction are consistent with the coordinate system of the vehicle to which the projection assembly 100 is applied,
  • the above-mentioned X direction and Y direction are the X direction and Y direction of the vehicle coordinate system respectively.
  • the X direction is the front and rear direction of the vehicle
  • the Y direction is the left and right direction of the vehicle.
  • the Y direction may also be other directions.
  • the Y direction may be the up and down direction of the vehicle.
  • the above-mentioned Z direction is consistent with the coordinate system of the vehicle to which the projection component 100 is applied.
  • the above-mentioned Z direction is the Z direction of the vehicle coordinate system.
  • the Z direction is the up and down direction of the vehicle.
  • the light incident surface 2011 is a light incident surface collimated in the Y direction, which can be understood as: the cross section of the light incident surface 2011 in the Y direction (left and right direction) is a convex curve, and the light incident surface 2011 deflects light to a greater extent in the left and right directions. It is large and can have a certain collimating effect on divergent light; the cross-section of the light incident surface 2011 in the Z direction (up and down direction) is a straight line, and the light incident surface 2011 has a weak ability to deflect light in the up and down direction and does not have collimation effect.
  • the light-emitting surface 2012 is a light-emitting surface that is collimated in the Z direction. It can be understood that the section line of the light-emitting surface 2012 in the Z direction (up and down direction) is a convex curve. The light emitting surface 2012 deflects light to a greater extent in the up and down directions and can deflect light to a greater extent. The divergent light has a certain collimation effect; the cross-section of the light exit surface 2012 in the Y direction (left and right direction) is a straight line, and the light exit surface 2012 has a weak ability to deflect light in the left and right directions and has no collimation effect.
  • the lens assembly By setting the light incident surface 2011 of the lens 2 as a light incident surface collimated in the Y direction, and setting the light exit surface 2012 of the lens 2 as a light exit surface collimated in the Z direction, it is convenient for the lens assembly to form an asymmetric light shape on the road surface. , for example, forming a rectangular light shape with large dimensions in the left and right directions and small dimensions in the up and down directions.
  • the light incident surface 2011 and the light exit surface 2012 are spaced apart along the X direction.
  • the light incident surface 2011 and the light emergent surface 2012 are spaced apart along the front and rear directions.
  • the reflective surface 101 is a paraboloid.
  • the reflective surface 101 as a paraboloid, it is not only convenient to design and process the reflector 1, but also the reflective effect of the reflective surface 101 is better.
  • the reflective surface 101 can also be of other surface types.
  • the size of the reflective surface 101 in the Y direction is 5 mm to 15 mm.
  • the size of the reflective surface 101 in the left-right direction is 10 mm.
  • the focal length of the reflective surface 101 is 0.5 mm to 3 mm.
  • the focal length of the reflective surface 101 is 1 mm, which makes the focal length of the reflective surface 101 smaller, which is beneficial to improving the brightness and light efficiency of the projection assembly 100 illuminated on the road surface.
  • the first portion 1030 includes a first segment 1031 and a second segment 1032
  • the second portion 1034 includes a third segment 1033, the first segment 1031, the second segment 1032, and the third segment 1033. connected in sequence along the Y direction.
  • the first section 1031 and the third section 1033 are arranged at intervals in the Z direction
  • the second section 1032 is arranged at an angle
  • the third section 1033 and The connection between the second section 1032 forms a first inflection point 10341
  • the connection between the first section 1031 and the second section 1032 forms a second inflection point 10342.
  • the auxiliary low beam cutoff line 103 is a polyline including the first section 1031, the second section 1032 and the third section 1033.
  • the connection point between the third section 1033 and the second section 1032 is the first inflection point 10341.
  • the first section 1031 and The connection point of the second segment 1032 is the second inflection point 10342.
  • the first inflection point is to the right of the second inflection point, and the first inflection point is higher than the second inflection point.
  • the image of the first inflection point and the image of the second inflection point are both located on the auxiliary light-dark cutoff line, and the image of the first inflection point is located on
  • the image of the second inflection point is to the left and the image of the first inflection point is lower than the image of the second inflection point.
  • the image of the first inflection point on the auxiliary light and dark cutoff line is similar to the human "elbow", which is called the “elbow” of the first light and dark cutoff line; the image of the second inflection point is similar to the human “shoulder” , called the “shoulder” of the auxiliary cutoff line. Since the first part 1030 is spaced apart from the optical axis in the left-right direction, the "elbow” and “shoulder” of the auxiliary cut-off line are both offset from the center of the light shape formed by the auxiliary optical unit 801, that is, the "elbow” of the auxiliary cut-off line.
  • Both the "elbow” and the “shoulder” of the auxiliary cutoff line are offset from the center of the light shape formed by the projection assembly 100, thereby preventing the portion between the “elbow” and the “shoulder” of the auxiliary cutoff line from affecting the cutoff line of the projection assembly 100. Clarity.
  • the auxiliary low beam cutoff line 103 includes a first section 1031 , a second section 1032 and a third section 1033 connected in sequence from left to right.
  • the first section 1031 is located below the third section 1033 , the left end of the second segment 1032 is lower and the right end is higher.
  • a second inflection point 10342 is formed between the first section 1031 and the second section 1032, and a first inflection point 10341 is formed between the third section 1033 and the second section 1032.
  • the second segment 1032 is tilted at an angle of 45°.
  • the inclination angle ⁇ of the second section 1032 is 45°.
  • At least one of the first segment 1031, the second segment 1032, and the third segment 1033 is a straight line.
  • first segment 1031, the second segment 1032, and the third segment 1033 are all straight lines. At this time, the first segment 1031, the second segment 1032, and the third segment 1033 form a polyline.
  • first section 1031 and the third section 1033 are straight lines
  • first section 1031 and the third section 1033 can be straight lines parallel to the left and right directions, or can be oblique lines intersecting the left and right directions.
  • At least one of the first segment 1031, the second segment 1032, and the third segment 1033 is a curve.
  • first segment 1031 and the third segment 1033 are straight lines, and the second segment 1032 is a curve.
  • the optical axis is the first optical axis
  • the reflective mirror 1 is the first reflective mirror 1041
  • the lens 2 is the first lens 2032
  • the light source 3 is the first light source 301
  • the reflective surface 101 of the first reflective mirror 1041 is the first reflective surface.
  • the first optical axis extends along the front-to-back direction, and the first reflector 1041, the first lens 2032, and the first light source 301 are arranged along the front-to-back direction.
  • the auxiliary low-beam cut-off line 103 is provided on the rear side of the first reflective surface.
  • the auxiliary low-beam cut-off line 103 includes a connected first part 1030 and a second part 1034.
  • the first part 1030 protrudes backward and the second part 1034 is provided.
  • the first part 1030 It is spaced apart from the first optical axis in the left and right direction.
  • the distance between the first inflection point 10341 and the optical axis is L1
  • the size of the reflective surface 101 in the Y direction is L01
  • the ratio of L1 to L01 is 0.1 to 0.35.
  • the distance between the first inflection point 10341 and the first optical axis is L1
  • the size of the first reflective surface in the auxiliary optical unit 801 in the left-right direction is L01
  • the ratio of L1 to L01 is 0.214.
  • the upper right side of the light shape formed by the auxiliary optical unit 801 has more energy.
  • the upper right side of the light shape formed by the auxiliary optical unit 801 has more energy and is located within the angle range commonly used by drivers, which is beneficial to improving the performance of vehicle lights with the projection assembly 100 road lighting effect.
  • the number of auxiliary optical units 801 may be one or more.
  • another part of the optical units among the plurality of optical units is the main optical unit 802, and the main optical unit 802 satisfies the following requirements: a main low beam cutoff line 106 is provided on the side of the reflective surface 101 away from the light incident surface 2011.
  • the main low-beam cutoff line 106 includes a connected third part 1060 and a fourth part 1061.
  • the third part 1060 is disposed protruding from the fourth part 1061 along the side away from the light incident surface 2011.
  • the third part 1060 and the fourth part 1061 are The connection forms a third inflection point 1062, and the third inflection point 1062 is located on the optical axis.
  • the optical axis is the second optical axis
  • the reflector 1 is the second reflector 1051
  • the lens 2 is the second lens 2042
  • the light source 3 represents the second light source 302
  • the reflective surface 101 of the second reflective mirror 1051 is the second reflective surface as an example to describe the technical solution of the present disclosure.
  • the second optical axis extends along the front-to-back direction, and the second reflector 1051, the second lens 2042, and the second light source 302 are arranged along the front-to-back direction.
  • the main low-beam cut-off line 106 is located on the rear side of the second reflective surface.
  • the main low-beam cut-off line 106 includes a connected third part 1060 and a fourth part 1061.
  • the third part 1060 protrudes backward and the fourth part 1061 is provided.
  • the connection between the three parts 1060 and the fourth part 1061 forms a third inflection point 1062, and the third inflection point 1062 is located on the second optical axis.
  • the main optical unit 802 can form a main light shape. Similar to the auxiliary light and dark cutoff line 103, the main low beam cutoff line 106 can form the main light and dark cutoff line of the main light shape, and the third inflection point 1062 can form The "elbow" of the main cutoff. It can be understood that the main cut-off line and the above-mentioned auxiliary cut-off line have overlapping portions, and the "elbows" of the main cut-off line are spaced left and right from the "elbows" of the above-mentioned auxiliary cut-off lines.
  • the low beam formed by the projection assembly 100 The light cut-off line is formed by the superposition of the main cut-off line and the auxiliary cut-off line.
  • the "elbow" of the main cut-off line is located at the center of the low-beam cut-off line, and the "elbow” of the auxiliary cut-off line is deviated from the center of the low-beam cut-off line. The center position of the light cutoff line.
  • the number of primary optical units 802 is multiple, and the auxiliary optical unit 801 is located between two adjacent primary optical units 802 in the Y direction.
  • three main optical units 802 are provided, the three main optical units 802 are arranged in the left-right direction, and the auxiliary optical unit 801 is provided between the two main optical units 802 on the right side.
  • the three primary optical units 802 and one auxiliary optical unit 801 are, from left to right, the primary optical unit 802 , the primary optical unit 802 , the auxiliary optical unit 801 and the primary optical unit 802 .
  • the light shape formed by the projection assembly 100 can have more energy, which is beneficial to improving the road illumination effect of the projection assembly 100.
  • the first part 1030, the second part 1034, the third part 1060 and the fourth part 1061 are sequentially arranged alternately along the Y direction.
  • one of the primary optical units 802 is located on the left side of the auxiliary optical unit 801 .
  • the third part 1060 is located on the left side of the optical axis
  • the fourth part 1061 is located on the right side of the optical axis;
  • the first part 1030 is located on the left side of the optical axis
  • the second part 1061 is located on the right side of the optical axis.
  • 1034 is located on the right side of the optical axis. Therefore, the projection assembly 100 of the embodiment of the present disclosure can use the first part 1030 to increase the energy on the upper right side of the light shape.
  • the light shape formed by all optical units in a car's low beam headlights mainly has less energy on the upper right side.
  • the projection assembly 100 of the embodiment of the present disclosure alternately arranges the first part 1030 , the second part 1034 , the third part 1060 and the fourth part 1061 along the Y direction, so that the first part 1030 can be used to increase the upper right of the light shape formed by the projection assembly 100 Side energy can effectively make up for the shortcomings of the existing technology and help improve the road lighting effect.
  • the first part 1030 and the third part 1060 may also be provided between the second part 1034 and the fourth part 1061, or the second part 1034 and the fourth part 1061 may be provided between Between the first part 1030 and the third part 1060.
  • the auxiliary optical unit 801 can be used to increase the energy of the upper left side of the light shape formed by the projection assembly 100 .
  • the optical axis of the auxiliary optical unit 801 intersects the geometric centerline of the reflective surface 101.
  • the first optical axis and the geometric centerline of the first reflective surface are located on the same plane perpendicular to the left and right directions, and the first optical axis intersects with the geometric centerline of the first reflective surface.
  • the light shape of the auxiliary optical unit 801 is a left-right symmetrical light shape, and the light shape is greatly broadened.
  • the light shape formed by the auxiliary optical unit 801 and the main optical unit 802 (as shown in Figure 13) has a larger broadening and more energy on the upper right side. It is beneficial to improve the road illumination effect of the vehicle lamp equipped with the projection assembly 100 .
  • the light source 3, the reflective surface 101 and the light incident surface 2011 correspond one to one and form an optical unit.
  • the light source 3 is a surface light source 3, and the number of the light sources 3 is 5 to 10.
  • the number of light sources 3 is eight.
  • the light sources 3 are LEDs.
  • multiple lenses 2 have an integrated structure, and a separation portion 2013 is formed between the light incident surfaces 2011 of adjacent lenses 2 .
  • eight lenses 2 have an integrated structure, and the eight lenses 2 form a lens group, and the eight light incident surfaces 2011 of the lens group are connected in sequence to form a wavy surface; The two light-emitting surfaces 2012 are connected in sequence to form a convex curved surface.
  • the plurality of reflectors 1 are of an integrated structure.
  • eight reflectors 1 form a reflector group.
  • the reflective mirror 1 includes a reflective part and a fixed part 102, the reflective surface 101 is provided on the reflective part, and the reflective part and the fixed part 102 are an integrated structure.
  • a vehicle lamp 1000 includes the projection assembly 100 described in any of the above embodiments.
  • the vehicle lamp 1000 according to the embodiment of the present disclosure has the advantages of good uniformity of road illumination.
  • the light shape formed by the vehicle lamp 1000 on the road surface has stray light phenomenon, which affects the road illumination effect of the vehicle lamp 1000.
  • the vehicle lamp 1000 in the embodiment of the present disclosure also includes a light blocking member 4.
  • the light blocking member 4 includes a light blocking part 401.
  • the light blocking part 401 is provided between two adjacent light incident surfaces 2011, that is, the light blocking part 401 corresponds to the partition part. 2013 is set to separate two adjacent light incident surfaces 2011.
  • the vehicle lamp 1000 in the embodiment of the present disclosure is provided with a light blocking member 4 and uses the light blocking part 401 of the light blocking member 4 to separate two adjacent light incident surfaces 2011, thereby effectively preventing the light emitted by the light source 3 from irradiating the corresponding light. Stray light is formed on the light incident surface 2011 of the adjacent optical unit. When the vehicle lamp 1000 according to the embodiment of the present disclosure is working, stray light can be greatly reduced or even avoided, which is beneficial to improving the road illumination effect of the vehicle lamp 1000 .
  • multiple light blocking portions 401 are provided, and a light blocking portion 401 is provided between any two adjacent light incident surfaces 2011 .
  • the light blocking portion 401 By arranging the light blocking portion 401 between any two adjacent light incident surfaces 2011, the light emitted by any one light source 3 can be effectively prevented from irradiating the light incident surface 2011 of the adjacent optical unit to form stray light, which is beneficial to improving the performance of the light incident surface.
  • connecting portion 402 on the light blocking member 4 and connecting the connecting portion 402 to the lens 2 it not only facilitates the assembly of the vehicle lamp 1000; it can also effectively improve the assembly accuracy between the light blocking portion 401 and the light incident surface 2011, which is beneficial to Improve the road lighting effect of car lights 1000.
  • the connecting part 402 and the light blocking part 401 are an integral structure.
  • the light blocking part 401 is a light blocking plate or a light blocking strip.
  • the connecting portion 402 is a connecting plate, and the connecting plate has an escape portion 4021 for avoiding the light incident surface 2011.
  • the escape portion 4021 can be an escape hole or an escape groove.
  • the vehicle lamp 1000 further includes a frame body 5 , and the connecting portion 402 and the lens 2 are both connected to the frame body 5 .
  • the frame body 5 has a first connection hole
  • the connecting arm 202 has a second connection hole
  • the connecting part 402 has a third connection hole.
  • the vehicle light 1000 also includes a first fastener 901 , and the first fastener 901 passes through the third connection hole.
  • the first connection hole and the second connection hole are connected with the first connection hole, and the first fastener is used to realize the connection between the light blocking member 4, the lens 2 and the frame body 5.
  • the first fastener 901 may be a bolt, a screw, or the like.
  • the vehicle light 1000 further includes a PCB board 6 and a heat sink 7 , the light source 3 is provided on the PCB board 6 , and the PCB board 6 is connected to the heat sink 7 through a second fastener 902 .
  • the fixing part 102 is connected to the heat sink 7 through a third fastener 903 .
  • the frame 5 has a flange 504 , and the radiator 7 and the flange 504 are connected through a fourth fastener 904 .
  • the vehicle in the embodiment of the present disclosure includes the vehicle lamp 1000 described in any of the above embodiments.
  • the vehicle according to the embodiment of the present disclosure has the advantages of good safety.
  • the orientation or positional relationship indicated by “to” and so on is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation. Specific orientations of construction and operation are therefore not to be construed as limitations on the disclosure.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this disclosure, unless otherwise explicitly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be mechanically connected, electrically connected or communicable with each other; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements, Unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features may be in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • the terms “one embodiment,” “some embodiments,” “example,” “specific examples,” or “some examples” or the like mean that a particular feature, structure, material, or other feature is described in connection with the embodiment or example.
  • Features are included in at least one embodiment or example of the disclosure.
  • the schematic expressions of the above terms are not necessarily directed to the same embodiment or example.
  • the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
  • those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Abstract

公开了一种投射组件、车灯和车辆，所述投射组件包括多个光学单元，每个光学单元包括反射镜和透镜，反射镜具有反光面；透镜具有入光面，入光面对应反光面设置；其中，每个光学单元均具有沿X方向延伸的光轴，反光面和对应的入光面沿X方向布置，多个光学单元中的一部分光学单元为辅光学单元，辅光学单元满足：反光面远离入光面的一侧设有辅近光截止线，辅近光截止线包括相连的第一部分和第二部分，第一部分沿远离入光面的方向凸出第二部分设置，第一部分与光轴沿Y方向间隔设置。

Description

投射组件、车灯和车辆
相关申请的交叉引用
本申请要求在2022年04月29日在中国提交的中国专利申请号2022210431070的优先权，其全部内容通过引用并入本文。
技术领域
本公开涉及汽车配件技术领域，具体涉及一种投射组件、车灯和车辆。
背景技术
汽车近光灯包括光源、反射镜和透镜，光源设有多个，反射镜具有多个反光面，透镜具有多个入光面，光源、反光面和对应的入光面形成一个光学单元，多个光源、多个反光面和多个入光面形成多个光学单元。每个光学单元中，光源发出的光经对应的反光面反射后汇聚到对应的入光面的焦点附近，多个光源发出的光最终经透镜折射到路面形成照明。
多个光学单元中的一部分为主光学单元，主光学单元可以形成具有明暗截止线的主光形，另一部分为辅光学单元，辅光学单元只可以形成不具有明暗截止线的辅光形。相关技术中，辅光形全部位于主光形的明暗截止线的下侧，导致汽车近光灯中所有光学单元一起形成的光形的左上侧和右上侧能量较少，最终导致路效果较差。
发明内容
本公开旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本公开的实施例提出一种投射组件，以提高具有该投射组件的车灯的路照效果。
本公开实施例的投射组件包括多个光学单元，每个所述光学单元包括反射镜和透镜，所述反射镜具有反光面；所述透镜具有入光面，所述入光面对应所述反光面设置；其中，每个所述光学单元均具有沿X方向延伸的光轴，所述反光面和对应的所述入光面沿所述X方向布置，多个所述光学单元中的一部分所述光学单元为辅光学单元，所述辅光学单元满足：所述反光面远离所述入光面的一侧设有辅近光截止线，所述辅近光截止线包括相连的第一部分和第二部分，所述第一部分沿远离所述入光面的方向凸出所述第二部分设置，所述第一部分与所述光轴沿Y方向间隔设置。
在一些实施例中，所述第一部分包括第一段和第二段，所述第二部分包括第三段，所述第一段、所述第二段和所述第三段沿所述Y方向依次相连，所述第一段和所述第三段在Z方向上间隔设置，所述第二段倾斜设置，所述第三段和所述第二段的连接处形成所述第 一拐点，所述第一段和所述第二段的连接处形成第二拐点。
在一些实施例中，所述第二段的倾斜角度为45°；和/或所述第一段、所述第二段和所述第三段中的至少一者为直线；和/或所述第一段、所述第二段和所述第三段中的至少一者为曲线。
在一些实施例中，多个所述光学单元中的另一部分所述光学单元为主光学单元，所述主光学单元满足：所述反光面远离所述入光面的一侧设有主近光截止线，所述主近光截止线包括相连的第三部分和第四部分，所述第三部分沿远离所述入光面的一侧凸出所述第四部分设置，所述第三部分和所述第四部分的连接处形成第三拐点，所述第三拐点设在所述光轴上；其中，所述第一部分、所述第二部分、所述第三部分和所述第四部分沿所述Y方向依次交替布置。
在一些实施例中，所述辅光学单元中，所述第一部分和所述的第二部分的连接处形成第一拐点，所述第一拐点与所述光轴之间的距离为L1，所述反光面在所述Y方向上的尺寸为L01，所述L1与所述L01的比值为0.1～0.35。
在一些实施例中，所述主光学单元的数量为多个，所述辅光学单元在所述Y方向上位于相邻两个所述主光学单元之间。
在一些实施例中，所述辅光学单元中，所述辅光学单元的光轴与所述反光面的几何中心线相交。
在一些实施例中，所述透镜具有与所述入光面对应的出光面，所述入光面为Y方向准直的入光面，所述出光面为Z方向准直的出光面。
在一些实施例中，所述反光面为抛物面；和/或所述反光面在所述Y方向上的尺寸为5mm～15mm；和/或所述反光面的焦距0.5mm～3mm。
本公开的实施例提出一种车灯，以提高车灯的路照效果。
本公开实施例的车灯包括上述任一实施例所述的投射组件。
本公开的实施例提出一种车辆，以提高车辆的安全性。
本公开实施例的车辆包括上述任一实施例所述的车灯。
本公开实施例的投射组件，辅光学单元可形成辅光形，辅近光截止线可形成辅光形的辅明暗截止线，由于第一部分沿远离入光面的方向凸出第二部分设置，使得辅明暗截止线的一部分高于另一部分，即辅明暗截止线的一部分位于近光灯明暗截止线的右上侧或左上侧，从而可以利用该辅光学单元，增加投射组件形成的光形左上侧和/或左上侧的能量。由此，本公开实施例的投射组件，可以提高投射组件形成的光形的右上侧和/或左上侧的能量，进而可以提高具有该投射组件的车灯路照效果，提高驾驶安全性。此外，通过将第一部分和光轴沿Y方向间隔设置，使得辅近光截止线的倾斜部分偏离近光灯的明暗截止线中心， 从而避免辅明暗截止线影响近光灯的明暗截止线的倾斜部分，保证投射组件形成的光形可以满足使用要求。
附图说明
图1是本公开一个实施例的投射组件的立体图。
图2是本公开一个实施例的投射组件的主视图。
图3是本公开一个实施例的投射组件的俯视图。
图4是图3中辅光学单元的立体图。
图5是图3中辅光学单元的主视图。
图6是图3中辅光学单元的俯视图。
图7是图3中辅光学单元的光路示意图。
图8是图4中辅光学单元的光形效果图。
图9是图4中辅光学单元的光形的鸟瞰图。
图10是相关技术中辅光学单元的光形效果图。
图11是相关技术中辅光学单元的光形的鸟瞰图。
图12是图3中主光学单元的光形效果图。
图13是图3中所有光学单元一起形成的光形效果图。
图14是本公开一个实施例的车灯的爆炸图。
图15是本公开一个实施例的车灯的主视图(隐去了散热器)。
图16是图15的A-A向视图。
图17是图14中透镜、挡光件和架体的爆炸图。
图18是图14中的透镜的立体图。
图19是图14中反射镜的立体图。
图20是图14中反射镜的主视图。
图21是图20的B-B向视图。
附图标记：
车灯1000；
投射组件100；
反射镜1；反光面101；固定部102；辅近光截止线103；第一部分1030；第一段1031；
第二段1032；第三段1033；第二部分1034；第一拐点10341；第二拐点10342；第一反射镜104；第二反射镜105；主近光截止线106；第三部分1060；第四部分1061；第三拐点1062；
透镜2；透镜本体201；入光面2011；出光面2012；分隔部2013；连接臂202；第一
透镜203；第二透镜204；
光源3；第一光源301；第二光源302；
挡光件4；挡光部401；连接部402；避让部4021；
架体5；容纳腔501；翻边504；
PCB板6；
散热器7；
辅光学单元801；主光学单元802；
第一紧固件901；第二紧固件902；第三紧固件903；第四紧固件904。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
车灯包括远光灯和近光灯，远光灯的光线平行射出，光线集中且亮度较大，可以照到更高更远的物体，近光灯发出的光呈现发散状态，可以照到近处较大范围内的物体。车灯作为汽车的眼睛，不仅关系到一个车主的外在形象，更与夜间开车或坏天气条件下的安全驾驶紧密联系，因此，车灯的路照效果对于安全行驶至关重要。相关技术中，辅光学单元的远离透镜的一侧设有辅近光截止线，辅近光截止线为沿左右方向延伸的直线，从而辅光学单元只可以形成不具有明暗截止线的辅光形，且辅光形全部位于主光形的明暗截止线的下侧，导致汽车近光灯中所有光学单元一起形成的光形的左上侧和右上侧能量较少，最终导致路效果较差。
基于上述技术问题中的至少一者，本公开实施例提供一种投射组件、车灯和车辆，可以有效增加投射组件形成的光形的左上侧和/或右上侧能量，从而提高具有该投射组件的车灯的路照效果，进而提高驾驶安全性。
如图1至图7、图14至图19所示，本公开实施例的投射组件100包括多个光学单元，每个光学单元包括反射镜1和透镜2，反射镜1具有反光面101，透镜2具有入光面2011，入光面2011对应反光面101设置。其中，每个光学单元均具有沿X方向(前后方向)延伸的光轴，反光面101和对应的入光面2011沿X方向布置，多个光学单元中的一部分光学单元为辅光学单元801。辅光学单元801满足：反光面101远离入光面2011的一侧设有辅近光截止线103，辅近光截止线103包括相连的第一部分1030和第二部分1034，第一部分1030沿远离入光面2011的方向凸出第二部分1034设置，第一部分1030与光轴沿Y方向(左右方向)间隔设置。
每个光学单元还包括光源3，光源3发出的光线通过反射镜1的反光面101反射到透镜2的入光面2011的焦点附近，最终经透镜2折射到路面形成光形，该光形用于照明。透镜2折射到路面上的光形，本质上是透镜2将被照亮的反射镜1的反光面101作为物，通过透镜2投影到车辆的前方，并形成一个上下左右两个方向颠倒的像。
例如，如图2、图3、图5和图6所示，本公开实施例的投射组件100，光学单元具有沿前后方向延伸的光轴，反光面101的前侧邻近对应的入光面2011，反光面101的后侧远离对应的入光面2011。辅光学单元801满足：反光面101的后侧设有辅近光截止线103，辅近光截止线103包括沿左右方向布置的第一部分1030和第二部分1034，第一部分1030向后凸出第二部分1034设置。第一部分1030和光轴沿左右方向间隔设置，或者说，第一部分1030设在光轴的在左右方向一侧。
本公开实施例的投射组件100，辅光学单元801可形成辅光形，辅近光截止线103可形成辅光形的辅明暗截止线。为方便描述和理解，将辅明暗截止线分为第一截止线部分和第二截止线部分，其中第一截止线部分由第一部分1030形成，第二截止线部分由第二部分1034形成。由于第一部分1030沿远离入光面2011的方向凸出第二部分1034设置，使得第一截止线部分高于第二截止线部分，即第一截止线部分位于第二截止线部分的右上侧(如图8和图9)或左上侧。从而可以利用该辅光学单元801，增加投射组件100形成的光形左上侧和/或左上侧的能量，例如，当第一部分1030设在辅光学单元801的光轴左侧时，该辅光学单元801形成的光形与相关技术(如图10和图11所示)相比，右上侧会多出一部分能量，可以利用该辅光学单元801增加投射组件100形成的光形的右上侧能量。由此，本公开实施例的投射组件100，可以提高投射组件100形成的光形的右上侧和/或左上侧的能量，进而可以提高具有该投射组件100的车灯路照效果，提高驾驶安全性。
此外，本领域技术人员可以理解的是，辅光学单元801的入光面2011通常会在左右方向上做离焦设计，使得辅光学单元801形成的光形展宽(左右方向尺寸)较大，若在辅光学单元801上设置可形成近光灯明暗截止线的结构，则近光灯明暗截止线的倾斜部分会不清晰，具体地，明暗截止线的“肘部”和“肩部”之间的部分不清晰，导致近光灯无法满足使用要求。本公开实施例的投射组件100，辅光学单元801通过将第一部分1030和光轴沿左右方向间隔设置，使得由辅近光截止线103形成的辅明暗截止线的倾斜部分偏离投射组件100形成的光形的中心，从而可以避免辅明暗截止线影响近光灯明暗截止线的倾斜部分，保证投射组件100形成的光形可以满足使用要求。
因此，本公开实施例的投射组件100具有形成的光形左上侧和/或右上侧能量高，具有该投射组件100的车灯的路照效果好等优点。
在一些实施例中，上述X方向和Y方向与投射组件100所应用的车辆的坐标系一致， 换言之，上述X方向和Y方向分别为车辆坐标系的X方向和Y方向。其中，X方向为车辆的前后方向，Y方向为车辆的左右方向。在另一些实施例中，上述Y方向也可以为其他方向，例如Y方向为车辆的上下方向。
在一些实施例中，如1、图14和图18所示，透镜2具有与入光面2011对应的出光面2012，入光面2011为Y方向准直的入光面2011，出光面2012为Z方向准直的出光面2012。
可以理解的是，上述Z方向与投射组件100所应用的车辆的坐标系一致，换言之，上述Z方向为车辆坐标系的Z方向。其中，Z方向为车辆的上下方向。
入光面2011为Y方向准直的入光面可以理解为：入光面2011在Y方向(左右方向)上的截线为凸曲线，入光面2011对光线在左右方向上偏折程度较大，能够对发散光线具有一定的准直作用；入光面2011在Z方向(上下方向)上的截线为直线，入光面2011对光线在上下方向上的偏折能力较弱，不具有准直作用。
出光面2012为Z方向准直的出光面可以理解为：出光面2012在Z方向(上下方向)上的截线为凸曲线，出光面2012对光线在上下方向上偏折程度较大，能够对发散光线具有一定的准直作用；出光面2012在Y方向(左右方向)上的截线为直线，出光面2012对光线在左右方向上的偏折能力较弱，不具有准直作用。
通过将透镜2的入光面2011设置为具有Y方向准直的入光面，并将透镜2的出光面2012设置为Z方向准直的出光面，便于透镜组件在路面上形成非对称光形，例如，形成左右方向尺寸大、上下方向尺寸小的长方形光形。
在一些实施例中，入光面2011和出光面2012沿X方向间隔设置。
例如，入光面2011和出光面2012沿前后方向间隔设置。
在一些实施例中，反光面101为抛物面。
通过将反光面101设为抛物面，不仅方便反射镜1的设计加工，而且反光面101的反光效果较好。
在另一些实施例中，反光面101也可以为其他面型。
在一些实施例中，反光面101在Y方向上的尺寸为5mm～15mm。
例如，反光面101在左右方向上的尺寸为10mm。
在一些实施例中，反光面101的焦距0.5mm～3mm。
例如，反光面101的焦距为1mm，使得反光面101的焦距较小，有利于提高投射组件100照射在路面上的亮度与光效率。
在一些实施例中，如图6所示，第一部分1030包括第一段1031和第二段1032，第二部分1034包括第三段1033，第一段1031、第二段1032和第三段1033沿Y方向依次相连。第一段1031和第三段1033在Z方向上间隔设置，第二段1032倾斜设置，第三段1033和 第二段1032的连接处形成第一拐点10341，第一段1031和第二段1032的连接处形成第二拐点10342。
通过在辅光学单元801的反光面101上设置辅近光截止线103，使得被照亮的反射镜1的反光面101作为物，通过透镜2投影到车辆的前方时，形成的像(光形)具有与辅近光截止线103形状一致的亮线，该亮线即为辅明暗截止线。其中，辅近光截止线103为包括第一段1031、第二段1032和第三段1033的折线，第三段1033和第二段1032的连接点为第一拐点10341，第一段1031和第二段1032的连接点为第二拐点10342。第一拐点位于第二拐点的右侧，第一拐点高于第二拐点。被照亮的反射镜1的反光面101作为物，通过透镜2投影到车辆的前方时，第一拐点的像和第二拐点的像均位于辅明暗截止线上，且第一拐点的像位于第二拐点的像的左侧、第一拐点的像低于第二拐点的像。从外观来看，辅明暗截止线上第一拐点的像与人类的“肘部”相似，称为第一明暗截止线的“肘部”；第二拐点的像与人类的“肩部”相似，称为辅明暗截止线的“肩部”。由于第一部分1030与光轴沿左右方向间隔设置，因此，辅明暗截止线的“肘部”和“肩部”均偏离辅光学单元801形成的光形的中心，即辅明暗截止线的“肘部”和“肩部”均偏离投射组件100形成的光形的中心，从而可以避免辅明暗截止线的“肘部”和“肩部”之间的部分，影响投射组件100的明暗截止线的清晰度。
例如，如图6所示，辅近光截止线103包括自左向右依次相连的第一段1031、第二段1032和第三段1033，第一段1031设在第三段1033的下侧，第二段1032的左端低右端高。第一段1031和第二段1032之间形成第二拐点10342，第三段1033和第二段1032之间形成第一拐点10341。
在一些实施例中，第二段1032的倾斜角度为45°。
例如，如图6所示，第二段1032的倾斜角度α为45°。
在一些实施例中，第一段1031、第二段1032和第三段1033中的至少一者为直线。
例如，第一段1031、第二段1032和第三段1033均为直线，此时，第一段1031、第二段1032和第三段1033形成折线。
可以理解的是，当第一段1031和第三段1033为直线时，第一段1031和第三段1033可以为与左右方向平行的直线，也可以为与左右方向相交的斜线。
在一些实施例中，第一段1031、第二段1032和第三段1033中的至少一者为曲线。
例如，第一段1031和第三段1033为直线，第二段1032为曲线。
在一些实施例中，第三段1033的一部分在Y方向上位于第一拐点10341和第二拐点10342之间。
为方便理解和描述，如图3至图7所示，下面以辅光学单元801中，光轴为第一光轴、 反射镜1为第一反射镜1041、透镜2为第一透镜2032、光源3为第一光源301，第一反射镜1041的反光面101为第一反光面为例，描述本申请公开的技术方案。
辅光学单元801中，第一光轴沿前后方向延伸，第一反射镜1041、第一透镜2032和第一光源301沿前后方向布置。辅近光截止线103设在第一反光面的后侧，辅近光截止线103包括相连的第一部分1030和第二部分1034，第一部分1030向后凸出第二部分1034设置，第一部分1030与第一光轴沿左右方向间隔设置。
在一些实施例中，辅光学单元801中，第一拐点10341与光轴之间的距离为L1，反光面101在Y方向上的尺寸为L01，L1与L01的比值为0.1～0.35。
例如，如图2、图3、图6和图7所示，第一拐点10341与第一光轴之间的距离为L1，辅光学单元801中第一反光面在左右方向上的尺寸为L01，L1与L01的比值为0.214。此时，如图8和图9所示，辅光学单元801形成的光形右上侧能量较多。
通过将L1与L01的比值设为0.1～0.35，使得辅光学单元801形成的光形右上侧能量较多，且位于驾驶员常用到的角度范围内，有利于提高具有该投射组件100的车灯的路照效果。
在一些实施例中，辅光学单元801的数量可以为一个或多个。
在一些实施例中，多个光学单元中的另一部分光学单元为主光学单元802，主光学单元802满足：反光面101远离入光面2011的一侧设有主近光截止线106。主近光截止线106包括相连的第三部分1060和第四部分1061，第三部分1060沿远离入光面2011的一侧凸出第四部分1061设置，第三部分1060和第四部分1061的连接处形成第三拐点1062，第三拐点1062设在光轴上。
为方便理解和描述，如图2和图3所示，下面以主光学单元802中，光轴为第二光轴、反射镜1为第二反射镜1051、透镜2为第二透镜2042、光源3为第二光源302，第二反射镜1051的反光面101为第二反光面为例，描述本公开的技术方案。
主光学单元802中，第二光轴沿前后方向延伸，第二反射镜1051、第二透镜2042和第二光源302沿前后方向布置。主近光截止线106设在第二反光面的后侧，主近光截止线106包括相连的第三部分1060和第四部分1061，第三部分1060向后凸出第四部分1061设置，第三部分1060和第四部分1061连接处形成第三拐点1062，第三拐点1062设在第二光轴上。
本公开实施例的投射组件100，主光学单元802可形成主光形，与辅明暗截止线103类似，主近光截止线106可形成主光形的主明暗截止线，第三拐点1062可形成主明暗截止线的“肘部”。可以理解的是，主明暗截止线和上述辅明暗截止线具有重合部分，且主明暗截止线的“肘部”与上述辅明暗截止线的“肘部”左右间隔开。投射组件100形成的近光 灯明暗截止线，由主明暗截止线和辅明暗截止线叠加形成，且主明暗截止线的“肘部”位于近光灯明暗截止线的中心位置，辅明暗截止线的“肘部”偏离近光灯明暗截止线的中心位置。
在一些实施例中，主光学单元802的数量为多个，辅光学单元801在Y方向上位于相邻两个主光学单元802之间。
例如，如图2和图3所示，主光学单元802设置三个，三个主光学单元802沿左右方向布置，辅光学单元801设在位于右侧的两个主光学单元802之间。具体地，三个主光学单元802和一个辅光学单元801的自左向右依次为主光学单元802、主光学单元802、辅光学单元801和主光学单元802。
通过设置多个主光学单元802可以使得投射组件100形成的光形能量较多，有利于提高投射组件100的路照效果。
在一些实施例中，第一部分1030，第二部分1034、第三部分1060和第四部分1061沿Y方向依次交替布置。例如，如图2所示，其中一个主光学单元802设在辅光学单元801的左侧。主光学单元802中，第三部分1060设在光轴的左侧，第四部分1061设在光轴的右侧；辅光学单元801中，第一部分1030设在光轴的左侧，第二部分1034设在光轴的右侧。由此，本公开实施例的投射组件100，可以利用第一部分1030增加光形的右上侧的能量。
相关技术中，汽车近光灯中所有光学单元一起形成的光形，主要是右上侧能量较少。本公开实施例的投射组件100通过将第一部分1030，第二部分1034、第三部分1060和第四部分1061沿Y方向依次交替布置，可以利用第一部分1030增加投射组件100形成的光形的右上侧能量，有效弥补现有技术的缺陷，利于提高路照效果。
在另一些实施例中，在Y方向上，也可以将第一部分1030和第三部分1060设在第二部分1034和第四部分1061之间，或者将第二部分1034和第四部分1061设在第一部分1030和第三部分1060之间。此时可以利用辅光学单元801增加投射组件100形成的光形的左上侧能量。
在一些实施例中，辅光学单元801中，辅光学单元801的光轴与反光面101的几何中心线相交。
例如，第一光轴与第一反光面的几何中心线位于与左右方向垂直的同一平面上，且第一光轴与第一反光面的几何中心线相交。
本公开实施例的投射组件100，由于辅光学单元801中，光轴与反光面101的几何中心线相交，使得辅光学单元801的光形为左右对称光形，且光形展宽较大。由此，辅光学单元801与主光学单元802一起形成的光形(如图13所示)，展宽较大且右上侧能量较多， 有利于提高具有该投射组件100的车灯的路照效果。
在一些实施例中，光源3、反光面101和入光面2011一一对应，并形成一个光学单元。
在一些实施例中，光源3为面光源3，光源3的数量为5～10个。
例如，如图1至图3所示，光源3的数量为8个，在一些实施例中，光源3为LED。
在一些实施例中，多个透镜2为一体式结构，相邻透镜2的入光面2011之间形成分隔部2013。
例如，如图14至图18所示，八个透镜2为一体式结构，八个透镜2形成一个透镜组，该透镜组的八个入光面2011依次相连形成波浪面；该透镜组的八个出光面2012依次相连形成一个凸曲面。
在一些实施例中，多个反射镜1为一体式结构。
例如，如图13、图19至图21所示，八个反射镜1形成一个反射镜组。
在一些实施例中，反射镜1包括反射部和固定部102，反光面101设在反射部上，反射部与固定部102为一体式结构。
如图14至图21所示，本公开实施例的车灯1000包括上述任一实施例所述的投射组件100。
因此，本公开实施例的车灯1000具有路照均匀性好等优点。
相关技术中，车灯1000在路面上形成的光形存在杂散光现象，影响车灯1000的路照效果。
本公开实施例的车灯1000还包括挡光件4，挡光件4包括挡光部401，挡光部401设在相邻两个入光面2011之间，即挡光部401对应分隔部2013设置，以将相邻两个入光面2011隔开。
本公开实施例的车灯1000，通过设置挡光件4，利用挡光件4的挡光部401将相邻两个入光面2011隔开，可以有效避免光源3发出的光线，照射到相邻光学单元的入光面2011上而形成杂散光。具有本公开实施例的车灯1000工作时，可以大大减少甚至避免杂散光，有利于提高车灯1000的路照效果。
因此，具有本公开实施例的车灯1000具有路照效果好等优点。
在一些实施例中，图14至图17所示，挡光部401设有多个，任意相邻两个入光面2011之间均设有挡光部401。
通过在任意相邻两个入光面2011之间设置挡光部401，可以有效避免任意一个光源3发出的光线照射到相邻光学单元的入光面2011上，而形成杂散光，有利于提高车灯1000的路照效果。
在一些实施例中，如图14和图17所示，挡光件4还包括连接部402，多个挡光部401 均与连接部402相连，连接部402与透镜2相连。
在进行车灯1000的组装时，可以先利用连接部402实现挡光件4与透镜2的连接，形成一个第一分总成，然后再进行第一分总成与其他部件的连接，从而方便将挡光件4固定在透镜2的预设位置处。
因此，通过在挡光件4上设置连接部402，连接部402与透镜2相连不仅方便车灯1000的组装；而且可以有效提高挡光部401和入光面2011之间的装配精度，有利于提高车灯1000的路照效果。
在一些实施例中，连接部402和挡光部401为一体式结构。
在一些实施例中，挡光件4为不锈钢件、塑料件或铝合金件。
在一些实施例中，挡光部401为挡光板或挡光条。
在一些实施例中，连接部402为连接板，连接板上具有用于避让入光面2011的避让部4021，避让部4021可以为避让孔或避让槽。
在一些实施例中，车灯1000还包括架体5，连接部402和透镜2均与架体5相连。
例如，如图14至图17所示，架体5为具有容纳腔501的罩体，透镜2设在容纳腔501内，挡光件4设在容纳腔501内。透镜2包括透镜本体201和连接臂202，入光面2011和出光面2012设在透镜本体201上。
架体5具有第一连接孔，连接臂202具有第二连接孔，连接部402具有第三连接孔，车灯1000还包括第一紧固件901，第一紧固件901穿过第三连接孔和第二连接孔并与第一连接孔相连，利用第一紧固件实现挡光件4、透镜2与架体5的连接。
在一些实施例中，第一紧固件901可以为螺栓、螺钉等。
在一些实施例中，如图14所示，车灯1000还包括PCB板6和散热器7，光源3设在PCB板6上，PCB板6通过第二紧固件902与散热器7相连。固定部102通过第三紧固件903与散热器7相连。
在一些实施例中，如图14、图15和图17所示，架体5具有翻边504，散热器7与翻边504通过第四紧固件904相连。
其中，第二紧固件902、第三紧固件903和第四紧固件904可以为螺栓、螺钉等。
在进行车灯1000的组装时，首先，透镜2、挡光件4和架体5组装成第一分总成，反射镜1、光源3、PCB板6和散热器7组装成第二分总成；然后，第二分总成与第一分总成通过第四紧固件904相连。
本公开实施例的车辆包括上述任一实施例所述的车灯1000。
因此，本公开实施例的车辆具有安全性好等优点。在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、 “右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本公开的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本公开中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
在本公开中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本公开中，术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本公开的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本公开的限制，本领域普通技术人员对上述实施例进行的变化、修改、替换和变型均在本公开的保护范围内。

Claims (11)

  1. 一种投射组件，其特征在于，包括多个光学单元，每个所述光学单元包括：
    反射镜，所述反射镜具有反光面；和
    透镜，所述透镜具有入光面，所述入光面对应所述反光面设置；
    其中，每个所述光学单元均具有沿X方向延伸的光轴，所述反光面和对应的所述入光面沿所述X方向布置，多个所述光学单元中的一部分所述光学单元为辅光学单元，所述辅光学单元满足：所述反光面远离所述入光面的一侧设有辅近光截止线，所述辅近光截止线包括相连的第一部分和第二部分，所述第一部分沿远离所述入光面的方向凸出所述第二部分设置，所述第一部分和所述第二部分的连接处形成第一拐点，所述第一部分与所述光轴沿Y方向间隔设置。
  2. 根据权利要求1所述的投射组件，其特征在于，所述第一部分包括第一段和第二段，所述第二部分包括第三段，所述第一段、所述第二段和所述第三段沿所述Y方向依次相连，所述第一段和所述第三段在Z方向上间隔设置，所述第二段倾斜设置，所述第三段和所述第二段的连接处形成第一拐点，所述第一段和所述第二段的连接处形成第二拐点。
  3. 根据权利要求2所述的投射组件，其特征在于，所述第二段的倾斜角度为45°；和/或
    所述第一段、所述第二段和所述第三段中的至少一者为直线；和/或
    所述第一段、所述第二段和所述第三段中的至少一者为曲线。
  4. 根据权利要求1至3中任一项所述的投射组件，其特征在于，多个所述光学单元中的另一部分所述光学单元为主光学单元，所述主光学单元满足：所述反光面远离所述入光面的一侧设有主近光截止线，所述主近光截止线包括相连的第三部分和第四部分，所述第三部分沿远离所述入光面的一侧凸出所述第四部分设置，所述第三部分和所述第四部分的连接处形成第三拐点，所述第三拐点设在所述光轴上；
    其中，所述第一部分、所述第二部分、所述第三部分和所述第四部分沿所述Y方向依次交替布置。
  5. 根据权利要求1至4中任一项所述的投射组件，其特征在于，所述辅光学单元中，所述第一部分和所述第二部分的连接处形成第一拐点，所述第一拐点与所述光轴之间的距离为L1，所述反光面在所述Y方向上的尺寸为L01，所述L1与所述L01的比值为0.1～0.35。
  6. 根据权利要求4所述的投射组件，其特征在于，所述主光学单元的数量为多个，所述辅光学单元在所述Y方向上位于相邻两个所述主光学单元之间。
  7. 根据权利要求1至6中任一项所述的投射组件，其特征在于，所述辅光学单元中， 所述辅光学单元的光轴与所述反光面的几何中心线相交。
  8. 根据权利要求1至7中任一项所述的投射组件，其特征在于，所述透镜具有与所述入光面对应的出光面，所述入光面为Y方向准直的入光面，所述出光面为Z方向准直的出光面。
  9. 根据权利要求1至8中任一项所述的投射组件，其特征在于，所述反光面为抛物面；和/或
    所述反光面在所述Y方向上的尺寸为5mm～15mm；和/或
    所述反光面的焦距0.5mm～3mm。
  10. 一种车灯，其特征在于，包括权利要求1至9中任一项所述的投射组件。
  11. 一种车辆，其特征在于，包括权利要求10所述的车灯。
PCT/CN2023/090951 2022-04-29 2023-04-26 投射组件、车灯和车辆 WO2023208065A1 (zh)

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JP2019096515A (ja) * 2017-11-24 2019-06-20 スタンレー電気株式会社 車両用灯具ユニット及び車両用灯具
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