Vehicle lamp
By designing a module in vehicle lighting fixtures to simultaneously generate high and low beam patterns, the problems of space utilization and manufacturing costs are solved, achieving efficient beam pattern synthesis and heat dissipation, and meeting the vision requirements at different distances.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-18
- Publication Date
- 2026-04-07
AI Technical Summary
Existing vehicle lights require additional low beam and high beam modules, resulting in inefficient space utilization and increased manufacturing costs.
Design a vehicle lighting fixture in which a module simultaneously forms a high beam pattern and a low beam pattern. By utilizing multiple light sources and reflectors with different curvatures, combined with lenses and heat dissipation components, the beam pattern can be synthesized and heat dissipation can be achieved.
It improves space utilization, reduces manufacturing costs, and ensures the vehicle's visibility at different distances.
Smart Images
Figure CN116357911B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a vehicle lighting fixture, and more specifically, to a vehicle lighting fixture that forms a high beam pattern and a low beam pattern through a module. Background Technology
[0002] Typically, vehicles are equipped with various types of lights that have both lighting and signaling functions. The lighting function is used to make it easier to identify objects around the vehicle when driving at night, while the signaling function is used to inform drivers of other vehicles or pedestrians of the vehicle's driving status.
[0003] For example, vehicles are equipped with headlights and fog lights, which are mainly for illumination, and turn signals, taillights, brake lights, side markers, etc., which are for signaling. Regulations stipulate the standards and specifications for the installation of these lights to ensure that each function is fully utilized.
[0004] The headlights form low beam or high beam patterns, ensuring the driver's forward visibility when driving at night or in low-light conditions, which plays a very important role in safe driving.
[0005] Furthermore, if a low-beam module that forms the low-beam pattern and a high-beam module that forms the high-beam pattern are additionally equipped and arranged in the vehicle, extra space is required for the low-beam and high-beam modules, which may lead to space inefficiencies. Additionally, extra components are needed for each module, which may increase manufacturing costs.
[0006] Therefore, there is a need for a module that forms both the low beam pattern and the high beam pattern to be implemented as an integrated vehicle lighting fixture.
[0007] Existing technical documents
[0008] Korean Patent Publication No. 10-2015-0118669 (October 23, 2015) Summary of the Invention
[0009] The technical problem to be solved by the present invention relates to a vehicle lamp that forms a high beam pattern and a low beam pattern through a module.
[0010] The technical problems to be solved by the present invention are not limited to those mentioned above. Those skilled in the art can clearly understand other technical problems not mentioned from the following description.
[0011] A vehicle lamp according to an embodiment of the present invention includes: a first reflector comprising a first light source portion, a second light source portion, and a plurality of first reflective portions, wherein the first light source portion comprises a plurality of first light sources and irradiates first light for forming a first beam pattern, the second light source portion comprises a plurality of second light sources and irradiates second light for forming a second beam pattern, and the plurality of reflectors correspond to the plurality of first light sources and reflect the first light; and a second reflector comprising a plurality of second reflective portions corresponding to the plurality of second light sources and reflecting the second light, wherein the plurality of first light sources are arranged in an arc shape having a first curvature, the plurality of second light sources are arranged in an arc shape having a second curvature, and the second curvature is greater than the first curvature.
[0012] The spacing between adjacent first light sources in the plurality of first light sources increases from the center toward the edge.
[0013] The spacing between adjacent second light sources in the plurality of second light sources increases from the center towards the edge.
[0014] The spacing between adjacent second light sources in the plurality of second light sources becomes smaller from the center toward the edge.
[0015] The length of the arc formed by the plurality of second light sources is less than the length of the arc formed by the plurality of first light sources.
[0016] The first reflector includes an auxiliary reflective portion that protrudes from the plurality of first reflective portions in a lateral direction and reflects the first light.
[0017] The vehicle lamp also includes a lens that transmits first light and second light reflected by the first reflector and the second reflector. The lens includes an auxiliary beam pattern forming section that causes the first light reflected by the auxiliary reflector to be transmitted in a specific direction to form an auxiliary beam pattern.
[0018] The auxiliary beam pattern forming part is formed at the lower end of the light emitting surface of the lens.
[0019] The auxiliary beam pattern includes a signal beam pattern.
[0020] A step difference is formed between the outermost outermost reflective portion and the adjacent outermost outermost reflective portion in the plurality of second reflective portions.
[0021] The outermost reflective portion and the adjacent outermost reflective portion reflect the second light generated by at least one second light source.
[0022] The outermost reflective portion reflects the second light toward the center of the second beam pattern, and the adjacent outermost reflective portion reflects the second light toward the edge of the second beam pattern.
[0023] The vehicle lighting fixture also includes a heat dissipation unit, which is in close contact with a first light source and a second light source arranged at different heights to dissipate heat from the first light source and the second light source. The heat dissipation unit includes a first heat dissipation plate, a second heat dissipation plate, and heat dissipation fins. The first heat dissipation plate is in close contact with the first light source to absorb heat from the first light source, and the second heat dissipation plate is in close contact with the second light source to absorb heat from the second light source. The heat dissipation fins dissipate heat from the first heat dissipation plate and the second heat dissipation plate to the outside.
[0024] The first heat sink and the second heat sink are arranged at different heights.
[0025] The first beam pattern includes a near beam pattern, and the second beam pattern includes a far beam pattern.
[0026] The vehicle lighting fixture also includes a shielding component that selectively blocks light reflected by the first reflector to form the boundary and cutoff line of the first beam pattern.
[0027] The shielding member includes a reflective region that reflects incident light and a long, sloping cutoff portion formed to one side in such a way that the reflective region is curved and includes an inclined surface, wherein the sloping cutoff portion extends toward the boundary between the central first reflective portion and the adjacent first reflective portion of the plurality of first reflective portions.
[0028] The length of the second reflector toward the lens is less than the length of the first reflector toward the lens.
[0029] Specific details of other embodiments are included in the detailed description and accompanying drawings.
[0030] As described above, the vehicle lamps according to embodiments of the present invention have the advantages of improved space utilization and reduced manufacturing costs because the high beam pattern and low beam pattern are formed by a single module. Attached Figure Description
[0031] Figure 1 This is a perspective view of a vehicle lamp according to an embodiment of the present invention.
[0032] Figure 2 This is an exploded perspective view of a vehicle lamp according to an embodiment of the present invention.
[0033] Figure 3 This is a diagram showing the pattern of the near beam.
[0034] Figure 4 This is a diagram showing a composite beam pattern of the near beam pattern and the far beam pattern.
[0035] Figure 5 This is a plan view of the first light source section.
[0036] Figure 6 This is a plan view of the first reflector.
[0037] Figure 7 This diagram illustrates the situation where light is irradiated by the first beam pattern forming unit.
[0038] Figure 8 This is a 3D view of the shielding component.
[0039] Figure 9 This is a plan view of the second light source section.
[0040] Figure 10 This is a plan view of the second reflector.
[0041] Figure 11 This diagram illustrates the situation where light is irradiated by the second beam pattern forming unit.
[0042] Figure 12 This is a diagram used to illustrate the arrangement relationship between the first beam pattern forming section and the second beam pattern forming section.
[0043] Figure 13 This is a 3D view of the heat dissipation section.
[0044] Figure 14 This is the front view of the lens.
[0045] Figure 15 This is a diagram used to illustrate the situation of irradiating light used to form the pattern of the first beam.
[0046] Figure 16 This diagram illustrates the situation where light is irradiated to form an auxiliary beam pattern.
[0047] Figure 17 This is a diagram illustrating the situation of irradiating light used to form the second beam pattern.
[0048] Explanation of reference numerals in the attached figures:
[0049] 10: Vehicle lighting fixtures; 100: First beam pattern forming unit
[0050] 110: First Light Source Section 111: First Light Source
[0051] 112: First substrate; 120: First reflector
[0052] 121: First reflector; 122: Auxiliary reflector
[0053] 130: Shielding component; 131: Reflection area
[0054] 132: Transmission area; 133: Light and dark cutoff formation area
[0055] 200: Second beam pattern forming unit; 210: Second light source unit
[0056] 211: Second light source; 212: Second substrate
[0057] 220: Second reflector; 221: Second reflector part
[0058] 300: Heat dissipation section; 310: First heat dissipation plate
[0059] 320: Second heat sink; 330: Heat sink fins
[0060] 400: Lens; 410: Light exit surface
[0061] 420: Auxiliary beam pattern forming unit Detailed Implementation
[0062] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. (Refer to the accompanying drawings) Figure 1 The advantages and features of the invention, as well as the methods for achieving them, will become clear from the detailed embodiments described below. However, the invention can be implemented in many different forms and is not limited to the embodiments disclosed below. These embodiments are provided only to fully disclose the invention and to fully inform those skilled in the art of the invention's scope, which is defined only by the scope of the claims. Throughout this specification, the same reference numerals refer to the same constituent elements.
[0063] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) are intended to have the meaning commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, unless otherwise explicitly and specifically defined, terms as defined in commonly used dictionaries should not be interpreted ideally or excessively.
[0064] Figure 1 This is a perspective view of a vehicle lamp according to an embodiment of the present invention. Figure 2 This is an exploded perspective view of a vehicle lamp according to an embodiment of the present invention. Figure 3 This is a diagram showing the pattern of the first beam. Figure 4 This is a diagram showing a composite beam pattern of the first beam pattern and the second beam pattern.
[0065] Reference Figure 1 and Figure 2 According to an embodiment of the present invention, a vehicle lamp 10 includes a first beam pattern forming part 100, a second beam pattern forming part 200, a heat dissipation part 300, and a lens 400.
[0066] The first beam pattern forming unit 100 can form a first beam pattern. The first beam pattern forming unit 100 includes a first light source unit 110, a first reflector 120, and a shielding member 130.
[0067] The first light source unit 110 can illuminate first light used to form a first beam pattern. The first light source unit 110 may include a first light source 111 (see reference 111). Figure 5 ) and the first substrate 112 (refer to Figure 5 ).
[0068] The first light source 111 can emit a first light. Multiple first light sources 111 can be configured.
[0069] The first substrate 112 can support the first light source 111. A plurality of first light sources 111 can be arranged on one side surface of the first substrate 112. The first substrate 112 can receive power from the outside and transmit it to the first light source 111. The first light source 111 can generate and illuminate first light using the power transmitted from the first substrate 112.
[0070] The shield 130 can be used to form a first beam pattern. A portion of the first light emanating from the first light source 111 is blocked by the shield 130 from illuminating the lens 400. Therefore, a first beam pattern corresponding to the shape of the shield 130 can be formed.
[0071] The first reflector 120 can reflect the first light. The first reflector 120 may include a plurality of first reflective parts 121 corresponding to a plurality of first light sources 111 (see reference). Figure 6 Multiple first reflective portions 121 can be arranged adjacent to multiple first light sources 111 respectively. Each first reflective portion 121 can reflect the first light from the corresponding first light source 111.
[0072] The second beam pattern forming unit 200 can form a second beam pattern. The second beam pattern forming unit 200 includes a second light source unit 210 and a second reflector 220.
[0073] The second light source 210 can illuminate a second light used to form a second beam pattern. The second light source 210 may include a second light source 211 (see reference). Figure 9 ) and second substrate 212 (refer to) Figure 9 ).
[0074] The second light source 211 can emit a second light. Multiple second light sources 211 can be provided.
[0075] The second substrate 212 can support the second light source 211. Multiple second light sources 211 can be arranged on one side surface of the second substrate 212. The second substrate 212 can receive power from the outside and transmit it to the second light source 211. The second light source 211 can generate and illuminate a second light using the power transmitted from the second substrate 212.
[0076] The second reflector 220 can reflect the second light. The second reflector 220 may include a plurality of second reflective parts corresponding to a plurality of second light sources 211. The plurality of second reflective parts may be arranged adjacent to the plurality of second light sources 211 respectively. Each second reflective part can reflect the second light from its corresponding second light source 211.
[0077] The heat dissipation unit 300 can dissipate heat from the first light source unit 110 and the second light source unit 210. The first light source unit 110 and the second light source unit 210 can be arranged at different heights. The heat dissipation unit 300 is in close contact with the first light source unit 110 and the second light source unit 210 arranged at different heights to dissipate heat from the first light source unit 110 and the second light source unit 210.
[0078] Lens 400 allows the transmission of first light and second light reflected by first reflector 120 and second reflector 220. The first light transmitted from lens 400 can form a first beam pattern, and the second light transmitted from lens 400 can form a second beam pattern.
[0079] In this invention, the first beam pattern can be a near beam pattern, and the second beam pattern can be a far beam pattern. The near beam pattern can be a beam pattern used to ensure close-range visibility in front of the vehicle, and the far beam pattern can be a beam pattern used to ensure long-range visibility in front of the vehicle.
[0080] Reference Figure 3 The near beam pattern LP may include a cutoff line CL. The cutoff line CL may be an inclined line that crosses the center of the beam pattern forming surface. Based on the cutoff line CL, the left and right sides of the near beam pattern LP may have different heights.
[0081] The near-beam pattern (LP) can include a focused light zone (LHZ) and a diffuse light zone (LSZ). The focused light zone (LHZ) represents the beam pattern formed by concentrated light, while the diffuse light zone (LSZ) represents the beam pattern formed by light diffused at the edges of the focused light zone (LHZ). That is, the focused light zone (LHZ) can exhibit higher brightness than the diffuse light zone (LSZ).
[0082] The focusing zone (LHZ) is a beam pattern that directs light toward the driver's immediate frontal area, ensuring good visibility of the vehicle at close range.
[0083] Reference Figure 4 The near beam pattern LP and the far beam pattern HP can be formed simultaneously.
[0084] When the near beam pattern LP and the far beam pattern HP are formed simultaneously, an overlapping region can be formed in which at least a portion of each of the near beam pattern LP and the far beam pattern HP overlaps. Furthermore, according to several embodiments of the present invention, the near beam pattern LP and the far beam pattern HP may not have an overlapping region between them. For example, the far beam pattern HP may be formed as a boundary corresponding to the near beam pattern LP.
[0085] The following is through Figures 5 to 14 The detailed structure and function of each component that makes up the vehicle lighting fixture 10 are explained.
[0086] Figure 5 This is a plan view of the first light source section.
[0087] Reference Figure 5 The first light source unit 110 may include a first light source 111 and a first substrate 112.
[0088] Multiple first light sources 111 can be arranged on a first substrate 112. The multiple first light sources 111 can be arranged in the shape of an arc ARC1 with a first curvature.
[0089] The spacing between adjacent first light sources 111 among a plurality of first light sources 111 can be configured to increase from the center towards the edge. (Refer to...) Figure 5 To explain, it can be formed that m2 is greater than m1 and m3 is greater than m2.
[0090] The first light source 111 arranged at the center of the plurality of first light sources 111 can illuminate the central region of the first beam pattern, while the first light sources 111 arranged at the edges of the plurality of first light sources 111 can illuminate the edge regions of the first beam pattern. The spacing between the first light sources 111 arranged at the center of the plurality of first light sources 111 is smaller than the spacing between the first light sources arranged at the edges, so the light can be concentrated towards the central region of the first beam pattern.
[0091] Figure 6 This is a plan view of the first reflector.
[0092] Reference Figure 6 The first reflector 120 may include a first reflective portion 121. The plurality of first reflective portions 121 may reflect first light irradiated from the plurality of first light sources 111.
[0093] The first reflector 120 may include an auxiliary reflector 122. The auxiliary reflector 122 may be formed by protruding to one side from a plurality of first reflectors 121 and reflect the first light. The first light irradiated by a portion of the plurality of first light sources 111 may be reflected by the auxiliary reflector 122.
[0094] Multiple auxiliary reflectors 122 may be provided. For example, four auxiliary reflectors 122 may be provided. Each auxiliary reflector 122 may reflect the first light from its corresponding first light source 111.
[0095] The first light-transmitting lens 400, reflected by the auxiliary reflector 122, can form an auxiliary beam pattern. In this invention, the auxiliary beam pattern can be a signal beam pattern. The signal beam pattern can be a beam pattern formed on the upper front side of the vehicle for identifying road signs.
[0096] Figure 7 This diagram illustrates the situation where light is irradiated by the first beam pattern forming unit. Figure 8 This is a 3D view of the shielding component.
[0097] Reference Figure 7 The light emanating from the first light source 111 can be reflected by the first reflector 121.
[0098] The first reflector 121 can be arranged adjacent to each of the first light sources 111. First light emanating from a first light source 111 can be reflected by the corresponding first reflector 121. The first light reflected by the first reflector 121 can then irradiate the lens 400.
[0099] A portion of the light reflected by the first reflector 121 can illuminate the shield 130. The shield 130 can selectively block the light reflected by the first reflector 121, thereby forming the boundary of the first beam pattern and the cutoff line CL.
[0100] Reference Figure 8 The shielding member 130 may include a reflective area 131, a through area 132, a light and dark cutoff forming part 133, and a light and dark cutoff inclined part 134.
[0101] Reflective region 131 can reflect incident light. Light transmitted to reflective region 131 in the entire area of shield 130 can be blocked from passing to lens 400 by reflective region 131, or it can be reflected by reflective region 131 and then passed to lens 400. Light passing through region 132 in the entire area of shield 130 can pass through region 132 and be transmitted to lens 400.
[0102] A light-dark cutoff forming portion 133 may be formed between the reflecting region 131 and the passing region 132. The light-dark cutoff forming portion 133 may block light passing through the passing region 132 in a predetermined shape, so that light-dark cutoff can be formed in the near beam pattern LP. The light-dark cutoff line CL included in the aforementioned near beam pattern LP may be formed in the light-dark cutoff forming portion 133.
[0103] The light-dark cutoff slope 134 can be formed elongated to one side in such a way that the reflective area 131 is curved and includes a sloped surface. The light-dark cutoff slope 134 can extend from the light-dark cutoff forming portion 133 toward the first reflective portion 121. (See reference...) Figure 7 To explain, the light-dark cutoff tilt portion 134 may extend toward the boundary between the first reflective portion 121a (hereinafter referred to as the central reflective portion) located at the very center of the first reflective portion 121 and the adjacent first reflective portion 121b (hereinafter referred to as the adjacent reflective portion).
[0104] The light reflected by the central reflector 121a and the adjacent reflector 121b can be used to form the focusing region LHZ in the near beam pattern LP. As a portion of the light reflected by the central reflector 121a and the adjacent reflector 121b illuminates the light-dark cutoff tilt 134, the light-dark cutoff line CL at the focusing region LHZ will be formed more clearly.
[0105] Figure 9 This is a plan view of the second light source section.
[0106] Reference Figure 9 The second light source unit 210 may include a second light source 211 and a second substrate 212.
[0107] Multiple second light sources 211 can be arranged on a second substrate 212. The multiple second light sources 211 can be arranged in the shape of an arc ARC2 with a second curvature.
[0108] The spacing between adjacent second light sources 211 in a plurality of second light sources 211 can be configured to increase from the center towards the edge. (Refer to...) Figure 9 To explain, it can be formed that n2 is greater than n1 and n3 is greater than n2.
[0109] The second light source 211 arranged at the center of the plurality of second light sources 211 can illuminate the central region of the second beam pattern, while the second light sources 211 arranged at the edges of the plurality of second light sources 211 can illuminate the edge regions of the second beam pattern. The spacing between the second light sources 211 arranged at the center of the plurality of second light sources 211 is smaller than the spacing between the second light sources 211 arranged at the edges, so the light can be concentrated towards the central region of the second beam pattern.
[0110] Furthermore, according to several embodiments of the present invention, the spacing between adjacent second light sources 211 among the plurality of second light sources 211 can also be formed to decrease from the center towards the edge. In this case, the light generated by the second light sources 211 near the edge among the plurality of second light sources 211 can be concentrated towards the edge region of the second beam pattern.
[0111] The length of the arc ARC2 formed by the plurality of second light sources 211 (hereinafter referred to as the second arc length) can be made smaller than the length of the arc ARC1 formed by the plurality of first light sources 111 (hereinafter referred to as the first arc length). The distance between the second light sources 211 arranged at both ends of the plurality of second light sources 211 can be smaller than the distance between the first light sources 111 arranged at both ends of the plurality of first light sources 111. Furthermore, the second curvature of the arc ARC2 formed by the plurality of second light sources 211 can be made greater than the first curvature of the arc ARC1 formed by the plurality of first light sources 111.
[0112] As the length of the second arc becomes shorter than the length of the first arc, and the second curvature becomes greater than the first curvature, the multiple second light sources 211 can concentrate light into a smaller area relative to the multiple first light sources 111 to form a beam pattern. Accordingly, as Figure 4 As shown, the high beam pattern HP is smaller in size than the low beam pattern LP. By focusing light into a relatively small area, the high beam pattern HP can provide night vision for greater distances.
[0113] Figure 10 This is a plan view of the second reflector.
[0114] Reference Figure 10 The second reflector 220 may include a plurality of second reflective portions 221. The plurality of second reflective portions 221 may reflect second light irradiated from a plurality of second light sources 211.
[0115] A step difference D can be formed between the outermost outermost reflective portion 221a and its adjacent outermost outermost adjacent reflective portion 221b in a plurality of second reflective portions 221. The outermost outermost reflective portion 221a and the adjacent outermost outermost reflective portion 221b can reflect the second light generated by at least one second light source 211. A portion of the second light irradiated from at least one first light source 111 can be reflected by the outermost outermost reflective portion 221a, and another portion can be reflected by the adjacent outermost outermost reflective portion 221b.
[0116] Figure 11 This diagram illustrates the situation where light is irradiated by the second beam pattern forming unit.
[0117] Reference Figure 11 The light irradiated by the second light source 211 can be reflected by the second reflector 221.
[0118] The second reflector 221 can be arranged adjacent to each of the second light sources 211. Second light irradiated from at least one second light source 211 can be reflected by the corresponding second reflector 221. The second light reflected by the second reflector 221 can irradiate towards the lens 400.
[0119] Light irradiated by the outermost light source 211a arranged on the outermost contour of the plurality of second light sources 211 can be reflected by the outermost reflective part 221a and the adjacent outermost reflective part 221b.
[0120] As described above, a step difference D can be formed between the outermost reflective portion 221a and the adjacent outermost reflective portion 221b. With the step difference D formed between the outermost reflective portion 221a and the adjacent outermost reflective portion 221b, the second light reflected by the outermost reflective portion 221a and the adjacent outermost reflective portion 221b can be used to form different regions of the second beam pattern. The outermost reflective portion 221a can reflect the second light towards the center of the second beam pattern, and the adjacent outermost reflective portion 221b can reflect the second light towards the edge of the second beam pattern.
[0121] The brightness of the central region of the second beam pattern can be increased by the second light reflected by the outermost reflector 221a. The outermost adjacent reflector 221b can only reflect a portion of the second light irradiated from at least one second light source 211. As the edge of the second beam pattern is formed by the second light reflected by the outermost adjacent reflector 221b, abrupt changes in brightness between the inner and outer sides of the boundary of the second beam pattern can be prevented.
[0122] Figure 12 This is a diagram used to illustrate the arrangement relationship between the first beam pattern forming section and the second beam pattern forming section.
[0123] Reference Figure 12 The first beam pattern forming part 100 and the second beam pattern forming part 200 can be arranged at different heights.
[0124] The first beam pattern forming section 100 can be arranged at a position higher than the second beam pattern forming section 200. The first light irradiated from the first beam pattern forming section 100 can be transmitted through the lens 400 and irradiated in a downward direction, thereby forming a first beam pattern. The second light irradiated from the second beam pattern forming section 200 can be transmitted through the lens 400 and irradiated in an upward direction, thereby forming a second beam pattern.
[0125] Figure 13 This is a 3D view of the heat dissipation section.
[0126] Reference Figure 13 The heat dissipation unit 300 includes a first heat dissipation plate 310, a second heat dissipation plate 320, and heat dissipation fins 330.
[0127] The first heat sink 310 can be in close contact with the first light source 110 to absorb the heat of the first light source 110. The second heat sink 320 can be in close contact with the second light source 210 to absorb the heat of the second light source 210.
[0128] The first heat sink 310 and the second heat sink 320 can be arranged at different heights. Specifically, the first heat sink 310 can be arranged at a position higher than the second heat sink 320. The first heat sink 310 and the second heat sink 320 can be arranged in a stepped shape. That is, the first heat sink 310 and the second heat sink 320 not only have different heights, but also different distances from the lens 400. In this invention, the distance between the first heat sink 310 and the lens 400 can be greater than the distance between the second heat sink 320 and the lens 400. Meanwhile, according to several embodiments of the present invention, the distance between the first heat sink 310 and the lens 400 can be less than the distance between the second heat sink 320 and the lens 400.
[0129] As described above, the first beam pattern forming section 100 and the second beam pattern forming section 200 can be arranged at different heights. That is, the first light source section 110 and the second light source section 210 can be arranged at different heights; specifically, the first light source section 110 can be arranged at a position higher than the second light source section 210. The first light source section 110 and the second light source section 210 can be arranged in close contact with the first heat sink 310 and the second heat sink 320, and the height of the first light source section 110 and the second light source section 210 can be determined by the first heat sink 310 and the second heat sink 320.
[0130] The heat dissipation fins 330 can dissipate heat from the first heat dissipation plate 310 and the second heat dissipation plate 320 to the outside. Multiple heat dissipation fins 330 can be configured and disposed on the first heat dissipation plate 310 and the second heat dissipation plate 320. The multiple heat dissipation fins 330 can be arranged at predetermined intervals. Therefore, heat transferred to each heat dissipation section 300 can be dissipated to the outside through the space between the heat dissipation sections 300.
[0131] By using a heat dissipation unit 300 to perform heat dissipation for the first light source unit 110 and the second light source unit 210, the configuration of the vehicle lamp 10 becomes simple and the assembly time can be shortened.
[0132] Figure 14 This is the front view of the lens.
[0133] Reference Figure 14 Lens 400 may include light emitting surface 410.
[0134] The light emitting surface 410 can emit a first light reflected by the first reflector 120 and a second light reflected by the second reflector 220.
[0135] Lens 400 may include an auxiliary beam pattern forming section 420. The auxiliary beam pattern forming section 420 causes the first light reflected by the auxiliary reflection section 122 of the first reflector 120 to be transmitted in a specific direction to form an auxiliary beam pattern.
[0136] An auxiliary beam pattern forming section 420 may be formed at the lower end of the light emitting surface 410 of the lens 400. The first light or the second light used to form the first beam pattern or the second beam pattern may be emitted from the central region of the light emitting surface 410. Since the auxiliary beam pattern forming section 420 is formed at the lower end of the light emitting surface 410, interference caused by the auxiliary beam pattern forming section 420 can be prevented when forming the first beam pattern or the second beam pattern.
[0137] Figure 15 This is a diagram used to illustrate the situation of irradiating light used to form the pattern of the first beam.
[0138] Reference Figure 15 The first beam pattern forming unit 100 can be irradiated with light used to form the first beam pattern.
[0139] Light emanating from the first light source 111 can be reflected by the first reflector 121 and transmitted to the lens 400. A portion of the light reflected by the first reflector 121 can be directly transmitted to the lens 400, while another portion can be reflected by the shield 130 and then transmitted to the lens 400. The light transmitted through the lens 400 shines in a downward direction, thereby forming a first beam pattern.
[0140] Figure 16 This diagram illustrates the situation where light is irradiated to form an auxiliary beam pattern.
[0141] Reference Figure 16 The first beam pattern forming unit 100 can be irradiated with light used to form an auxiliary beam pattern.
[0142] Light emanating from the first light source 111 can be reflected by the auxiliary reflector 122 and transmitted to the lens 400. The lens 400 may include an auxiliary beam pattern forming unit 420. Light reflected from the auxiliary reflector 122 can be transmitted to the auxiliary beam pattern forming unit 420, and light transmitted through the auxiliary beam pattern forming unit 420 irradiates in an upward direction, thereby forming an auxiliary beam pattern.
[0143] Figure 17 This is a diagram used to illustrate the situation of irradiating light used to form the pattern of the second beam.
[0144] Reference Figure 17 The second beam pattern forming unit 200 can be irradiated with light used to form the second beam pattern.
[0145] Light emanating from the second light source 211 can be reflected by the second reflector 221 and transmitted to the lens 400. The light from the transmission lens 400 shines upwards, thus forming a second beam pattern.
[0146] A portion of the light reflected by the second reflector 221 can be directly transmitted to the lens 400, while another portion can be reflected by the shield 130 and then transmitted to the lens 400. Since the light reflected by the shield 130 is used to form the second beam pattern, the length of the second reflector 221 toward the lens 400 can be made smaller than the length of the first reflector 121 toward the lens 400.
[0147] The embodiments of the present invention have been described with reference to the above description and accompanying drawings. However, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical concept or essential features. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.
Claims
1. A vehicle lighting fixture, comprising: The first light source section includes a plurality of first light sources and irradiates first light for forming a first beam pattern; The second light source section includes multiple second light sources and illuminates second light for forming a second beam pattern; The first reflector includes a plurality of first reflective portions corresponding to the plurality of first light sources, and reflects the first light; as well as The second reflector includes a plurality of second reflective portions corresponding to the plurality of second light sources, and reflects the second light. The plurality of first light sources includes at least three light sources arranged along a first arc shape having a first curvature. The plurality of second light sources includes at least three light sources arranged along a second arc shape having a second curvature. The second curvature is greater than the first curvature.
2. The vehicle lighting fixture according to claim 1, wherein, The spacing between adjacent first light sources in the plurality of first light sources increases from the center toward the edge.
3. The vehicle lighting fixture according to claim 1, wherein, The spacing between adjacent second light sources in the plurality of second light sources increases from the center towards the edge.
4. The vehicle lighting fixture according to claim 1, wherein, The spacing between adjacent second light sources in the plurality of second light sources becomes smaller from the center toward the edge.
5. The vehicle lighting fixture according to claim 1, comprising: The length of the arc formed by the plurality of second light sources is less than the length of the arc formed by the plurality of first light sources.
6. The vehicle lighting fixture according to claim 1, wherein, The first reflector includes an auxiliary reflective portion that protrudes from the plurality of first reflective portions in a lateral direction and reflects the first light.
7. The vehicle lighting fixture according to claim 6, further comprising: The lens transmits the first light and the second light reflected by the first reflector and the second reflector. The lens includes an auxiliary beam pattern forming section, which transmits the first light reflected by the auxiliary reflector in a specific direction to form an auxiliary beam pattern.
8. The vehicle lighting fixture according to claim 7, wherein, The auxiliary beam pattern forming part is formed at the lower end of the light emitting surface of the lens.
9. The vehicle lamp according to claim 7, wherein, The auxiliary beam pattern includes a signal beam pattern.
10. The vehicle lamp according to claim 1, wherein, A step difference is formed between the outermost outermost reflective portion and the adjacent outermost outermost reflective portion in the plurality of second reflective portions.
11. The vehicle lamp according to claim 10, wherein, The outermost reflective portion and the adjacent outermost reflective portion reflect the second light generated by at least one second light source.
12. The vehicle lamp according to claim 11, wherein, The outermost reflective portion reflects the second light toward the center of the second beam pattern. The outermost adjacent reflective portion reflects the second light toward the edge of the second beam pattern.
13. The vehicle lighting fixture according to claim 1, further comprising: The heat dissipation section is in close contact with the first light source section and the second light source section, which are arranged at different heights to dissipate the heat from the first light source section and the second light source section; The heat dissipation unit includes: The first heat sink is in close contact with the first light source to absorb the heat from the first light source. A second heat sink is attached in close contact with the second light source to absorb heat from the second light source; and The heat dissipation fins dissipate heat from the first and second heat dissipation plates to the outside.
14. The vehicle lighting fixture according to claim 13, wherein, The first heat sink and the second heat sink are arranged at different heights.
15. The vehicle lighting fixture according to claim 1, wherein, The first beam pattern includes a near beam pattern, and the second beam pattern includes a far beam pattern.
16. The vehicle lighting fixture according to claim 1, further comprising: The shielding element selectively blocks the light reflected by the first reflector to form the boundary and cutoff line of the first beam pattern.
17. The vehicle lighting fixture according to claim 16, wherein, The shielding component includes: The reflective area reflects the incident light; and The light and dark cutoff slope is formed so that the reflective area is curved and includes a sloped surface, extending long to one side. The light and dark cutoff inclined portion extends toward the boundary between the most central first reflective portion and the adjacent first reflective portion among the plurality of first reflective portions.
18. The vehicle lamp according to claim 7, wherein, The length of the second reflector toward the lens is less than the length of the first reflector toward the lens.
Citation Information
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