High beam module and vehicle lamp

Abstract

The utility model discloses a high beam module and a car lamp, which comprise a high beam heat dissipation component, an upper beam heat dissipation component, a lower beam heat dissipation component and a lower beam heat dissipation component, wherein the upper surface of the high beam heat dissipation component is configured as a positioning mounting surface; the light source part comprises a circuit board and a light source electrically connected to the surface of the circuit board, and the circuit board is fixed to the positioning installation face of the distance light heat dissipation part; the high-beam reflecting component is arranged on the positioning mounting surface and is used for reflecting light rays emitted by a light source to the high-beam lens side to form collimated light rays; and the high-beam lens is arranged on the reflection light-emitting side of the high-beam reflection component, is located at the same height as the high-beam reflection component, and is used for expanding the light in the vertical direction and emitting out the light.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a high beam module and an automobile lamp. Background Art

[0002] Currently, most high beam module designs on the market use a single-focus lens optical system. Since the high beam light pattern is above the HH line and the plano-convex lens has an inverted image, the high beam module needs to be inverted. The high beam reflector and the low beam reflector are far apart in vertical direction, and the high beam plano-convex lens and the low beam plano-convex lens are also far apart in vertical direction. This is not conducive to the spatial layout of the entire lamp and does not meet the styling requirements of the host.

[0003] Furthermore, with a single-focus lens, the display light pattern is not uniform, being white in the center and yellow (or blue) on either side. Furthermore, due to the limited upper and lower lens openings, both brightness and efficiency are limited. Furthermore, traditional solutions require a focal length behind the plano-convex lens, as well as a reflector or concentrator for focusing the light. Combined, these two lengths typically result in a total optical system length exceeding 70mm. Utility Model Content

[0004] In response to at least some of the problems and needs raised above, this solution proposes a high beam module and a headlight. By adopting the following technical features, it can achieve the above technical objectives and bring about many other technical effects.

[0005] The utility model provides a high beam module, comprising:

[0006] a high beam heat dissipation component, wherein the upper surface of the high beam heat dissipation component is configured as a positioning mounting surface;

[0007] A light source component, comprising a circuit board and a light source electrically connected to a surface of the circuit board, wherein the circuit board is fixed to a positioning and mounting surface of the high-beam heat dissipation component;

[0008] A high beam reflector, provided on the positioning mounting surface, for reflecting the light emitted by the light source toward the high beam lens side into collimated light;

[0009] The high beam lens is arranged on the light-reflecting side of the high beam reflecting component and is at the same height as the high beam reflecting component, and is used to expand and emit the light in the up and down directions.

[0010] Specifically, in the present application, the high-beam reflector is upright and disposed above the high-beam heat dissipation component. Thus, when the high-beam module and the low-beam module are arranged vertically in the lamp, the high-beam heat dissipation component is separated from the low-beam heat dissipation component, thereby avoiding heat accumulation due to the high-beam heat dissipation component and the low-beam heat dissipation component being adjacent to each other, thereby improving the heat dissipation effect of the entire lamp.

[0011] When installed in a lamp and the high beam module of the present application is arranged vertically alongside a conventional low beam module, the high beam lens and the low beam lens are closer together in the vertical direction, reducing the vertical space occupied by the entire lamp and facilitating the spatial arrangement of the interior of the lamp. The vertical dimensions of the lamp are reduced, making it possible to adapt to the styling requirements of modern host devices. When installed in a lamp and the high beam module of the present application is arranged horizontally alongside a conventional low beam module, the high beam lens and the low beam lens are substantially the same height in the vertical direction, further reducing the vertical space occupied by the entire lamp and facilitating the spatial arrangement of the interior of the lamp. The vertical dimensions of the lamp can be designed to be narrower, making it more suitable for the styling requirements of modern host devices.

[0012] The high beam module of the present application expands and amplifies the light in parallel, and the thickness of each part in the front-to-back direction is consistent, so there is no phase difference or color difference, and the light pattern and color are uniform; it can expand and amplify the light and is not affected by the vertical dimensions of the front opening of the lamp. The brightness and optical efficiency are significantly improved. The measured optical efficiency can reach about 60%, which is higher than the traditional high beam solution (40%-50%), and the brightness can reach 120lx.

[0013] In the present application, the light reflected by the high-beam reflection component is collimated parallel light, so there is no convergence focus, and there is no need to reserve a convergence focal length in front of the high-beam reflection component; and the high-beam lens in the front only diffuses and amplifies the light, and there is no need to reserve a focal length behind the high-beam lens. Positioning it forward or backward will not change the light pattern and clarity, and it can be placed as close to the light source as possible. Therefore, the total length of the entire high-beam module along the light emission direction is short, and the total length of the optical system in the front-to-back direction is about 50mm, which is much smaller than the length of the traditional solution (80mm-100mm); moreover, since the high-beam lens no longer needs to be arranged based on the convergence focus of the high-beam reflection component like the traditional solution, positioning it forward or backward will not change the light pattern quality, it is movable in the front-to-back direction, the position accuracy requirements in the front-to-back direction are not high, and the installation and assembly difficulty is low.

[0014] In some embodiments, in the front-to-back direction, a maximum distance between the rear end of the high-beam reflecting component and the front end of the light-emitting surface of the high-beam lens is less than or equal to 50 mm.

[0015] In some embodiments, there are multiple high beam reflection components and corresponding light sources, which are arranged side by side in sequence along the width direction of the high beam module; the high beam lens is long and strip-shaped, and each part of the high beam lens is respectively arranged in front of each high beam reflection component.

[0016] In some embodiments, the light incident surface of the high beam lens is a cylindrical surface that is concave toward a direction away from the high beam reflection component, and the light exit surface of the high beam lens is a cylindrical surface that is convex toward a direction away from the high beam reflection component. The directrix of the cylindrical surface is in a vertical plane, and the curvature of the light incident surface is the same as that of the light exit surface.

[0017] In some embodiments, the thickness of each part of the high beam lens along the front-to-back direction is 10 mm-50 mm.

[0018] In some embodiments, the high beam lens extends along a straight line or an arc in a horizontal plane, and an angle α between the extending direction and the width direction of the high beam module is 5°-35°.

[0019] In some embodiments, a positioning and mounting surface on the upper surface of the high beam heat dissipation component is provided with a rib, and the rib is arranged on the front edge of the circuit board close to the high beam lens, and the extension direction of the rib is consistent with the extension direction of the front edge of the circuit board; the height of the rib protruding from the positioning and mounting surface is 1.0-3.5 mm.

[0020] In some embodiments, a light-blocking electronic component is further included, which is arranged on the surface of the circuit board and is directly in front of the light source; the light-blocking electronic component is between the light source and the blocking rib, and the distance between the light-blocking electronic component and the light source is 1.5-3.0 mm.

[0021] In some embodiments, the height of the retaining rib protruding from the positioning and mounting surface is 1.0-1.5 mm.

[0022] A vehicle lamp comprises a low beam module and a high beam module. The high beam module and the low beam module are arranged side by side in a horizontal direction, and the high beam lens and the low beam lens are substantially at the same height.

[0023] The following will describe the best embodiment of the present invention in more detail with reference to the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings of the embodiments of the present invention. The drawings are only used to illustrate some embodiments of the present invention, and are not intended to limit all embodiments of the present invention to these drawings.

[0025] Figure 1 This is a schematic diagram of the layout of the traditional headlight optical module;

[0026] Figure 2 Schematic diagram of the plano-convex lens structure in a traditional high beam module;

[0027] Figure 3 Schematic diagram of the refraction of light of different wavelengths in a prism;

[0028] Figure 4 A schematic diagram of a high beam module provided in one embodiment of the present application;

[0029] Figure 5 A side view of the optical path of a high beam module provided in one embodiment of the present application;

[0030] Figure 6 A top view of the optical path of a high beam module provided in one embodiment of the present application;

[0031] Figure 7 for Figure 4 Schematic diagram of the coordinated assembly of the high beam module and the low beam module;

[0032] Figure 8 A schematic diagram of a high beam pattern formed by a high beam module according to an embodiment of the present application;

[0033] Figure 9 This is a schematic diagram of the high-beam lens of the present application being arranged in an inclined direction relative to the width direction of the vehicle lamp system;

[0034] Figure 10 A schematic diagram of a high beam module provided in an embodiment of the present application with the high beam reflector component omitted;

[0035] Figure 11 The optical path principle of stray light generated by existing car lighting solutions;

[0036] Figure 12 Schematic diagram of the scenario where stray light is generated by existing headlight solutions;

[0037] Figure 13 for Figure 12 Actual display light effect diagram of the car lighting solution;

[0038] Figure 14 A schematic diagram of the optical path of a high-beam lens provided in one embodiment of the present application;

[0039] Figure 15 for Figure 14 Display light effect diagram;

[0040] Figure 16 Schematic diagram of a high-beam lens light guide structure in which the vertex of the structure protrudes from the shielding edge surface by 0.5 to 2 mm and the vertex angle is 120° to 140°;

[0041] Figure 17 for Figure 16 Display light effect diagram;

[0042] Figure 18 This is a schematic diagram of the structure of the high beam lens of this application;

[0043] Figure 19 for Figure 18 The schematic diagram after omitting the blocking components;

[0044] List of reference numerals:

[0045] 1. Low beam module; 11. Low beam reflector; 12. Low beam radiator; 13. Low beam plano-convex lens;

[0046] 2. High beam module; 21. High beam reflector; 22. High beam radiator; 23. High beam plano-convex lens;

[0047] A. High beam module; B. Low beam module;

[0048] 100, high beam heat dissipation component; 110, positioning and mounting surface; 120, retaining rib;

[0049] 210, circuit board; 220, light source; 230, light-blocking electronic components;

[0050] 300, high beam reflector components;

[0051] 400, high beam lens; 410, light incident surface; 420, light exit surface;

[0052] 1', lens;

[0053] 1000, light-transmitting element; 1100, light incident surface; 1200, light emitting surface; 1300, shielding edge surface; 1310, upper shielding edge surface; 1320, lower shielding edge surface; 1330, left shielding edge surface; 1340, right shielding edge surface; 1400, light output structure;

[0054] 2000, occluding components. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present invention belongs. The terms "first", "second" and similar words used in the specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not necessarily indicate a quantity limitation. Terms such as "include" or "comprising" mean that the elements or objects preceding the term include the elements or objects listed after the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. The directions described in the text are also marked accordingly in the accompanying drawings.

[0057] At present, most of the high beam module designs on the market adopt a single-focus lens optical system. Since the high beam light pattern is above the HH line and the plano-convex lens imaging is inverted, the high beam reflector 21 of the high beam module 2 needs to be inverted, and the high beam radiator 22 of the high beam module 2 is on the top. The inverted high beam reflector 21 and the low beam reflector 11 are far apart in the upper and lower parts, and the high beam plano-convex lens 23 of the high beam module 2 and the low beam plano-convex lens 13 of the low beam module 1 are also far apart in the upper and lower parts. This is not conducive to the spatial layout of the entire lamp and does not meet the styling requirements of the host (the two plano-convex lenses are too far apart, and the low beam radiator 12 and the high beam radiator 22 are close to each other, which is not conducive to the heat dissipation of the entire lamp).

[0058] In the case of single focus lens, the plano-convex lens can be equivalent to Figure 2 The prism has different refractive indices for different wavelengths of light in a transparent medium, which results in phase and chromatic aberration in the light pattern. Figure 3 As shown, the white light produced by LEDs is synthesized from light of different wavelengths. Therefore, the color of the display light pattern of the traditional single-focus plano-convex lens solution cannot be uniform, with white in the middle and yellow (or blue) on both sides. Moreover, due to the limitations of the upper and lower openings of the lens, the brightness and efficiency cannot be very high.

[0059] In addition, the traditional solution requires a focal length behind the plano-convex lens, and the reflector or concentrator also requires a length to focus the light. The sum of these two lengths makes the total length of the optical system generally more than 70mm.

[0060] like Figure 4 According to the present invention, a high beam module is provided, comprising:

[0061] A high beam heat dissipation component 100 , wherein the upper surface of the high beam heat dissipation component 100 is configured as a positioning mounting surface 110 ;

[0062] The light source 220 component includes a circuit board 210 and a light source 220 electrically connected to the surface of the circuit board 210 , wherein the circuit board 210 is fixed to the positioning and mounting surface 110 of the high-beam heat dissipation component 100 ;

[0063] The high beam reflector 300 is provided on the positioning mounting surface 110 and is used to reflect the light emitted by the light source 220 toward the high beam lens 400 side into collimated light;

[0064] The high beam lens 400 is disposed on the light-reflecting side of the high beam reflecting component 300 and at the same height as the high beam reflecting component 300 , and is used to expand and emit light in the vertical direction.

[0065] Specifically, in the present application, the high-beam reflector 300 is upright, and the high-beam reflector 300 is modified to be arranged above the high-beam heat dissipation component 100, so that when the high-beam module A and the low-beam module B are arranged in coordination with each other in the lamp, the high-beam heat dissipation component 100 is separated from the low-beam heat dissipation component, thereby avoiding heat accumulation due to the high-beam heat dissipation component 100 and the low-beam heat dissipation component being adjacent to each other above and below, thereby improving the heat dissipation effect of the entire lamp;

[0066] When installed in a lamp and the high beam module A of the present application is arranged up and down with the conventional low beam module B, the high beam lens 400 is closer to the low beam lens in the vertical direction, which reduces the space occupied by the entire lamp in the up and down directions, is beneficial to the space arrangement inside the lamp, and the dimensions of the lamp in the up and down directions become narrower, which can adapt to the styling requirements of modern host computers.

[0067] like Figure 7 When installed in a lamp and the high beam module A of the present application is arranged side by side with the conventional low beam module B, the high beam lens 400 and the low beam lens are basically the same height in the vertical direction, which further reduces the space occupied by the entire lamp in the up and down directions and is more conducive to the space arrangement inside the lamp. The dimensions of the lamp in the up and down directions can be designed to be narrower, which can better meet the styling requirements of modern host computers.

[0068] The high beam module A of this application can be used Figure 5 、 Figure 6 The concave-convex high-beam lens 400 shown, which is concave on one side and convex on the other, expands and amplifies the light in parallel. The thickness of each part from top to bottom along the front-to-back direction (the direction in which the light is emitted) is consistent (equal wall thickness), so there is no phase difference or color difference, and the light pattern and color are uniform; it can expand and amplify the light and is not affected by the up and down dimensions of the front end opening of the lamp. The brightness and optical efficiency are significantly improved. The measured optical efficiency can reach about 60%, which is higher than the traditional high-beam solution (40%-50%), and the brightness can reach 120lx.

[0069] In the present application, the light reflected by the high-beam reflection component 300 is collimated parallel light, so no convergence focus is set, and there is no need to reserve a convergence focal length in front of the high-beam reflection component 300; and the high-beam lens 400 in the front only diffuses and amplifies the light, and there is no need to reserve a focal length behind the high-beam lens 400. Positioning it forward or backward will not change the light pattern and clarity, and it can be placed as far back as possible close to the light source 220. Therefore, the total length of the entire high-beam module A along the light emission direction is relatively short. In the front-to-back direction, the maximum distance between the rear end of the high-beam reflection component 300 and the front end of the light-emitting surface 420 of the high-beam lens 400 is less than or equal to 50 mm (that is, the total length of the optical system in the front-to-back direction is only 50 mm), which is much smaller than the length of the traditional solution (80 mm-100 mm); moreover, since the high-beam lens 400 no longer needs to be arranged based on the convergence focus of the high-beam reflection component 300 like the traditional solution, positioning it forward or backward will not change the light pattern quality, it is movable in the front-to-back direction, the position accuracy requirement in the front-to-back direction is not high, and the installation and assembly difficulty is low.

[0070] It should be noted that the high beam lens 400 is arranged on the light reflecting side of the high beam reflection component 300 and is at the same height as the high beam reflection component 300. In actual installation, there may be some deviation in the height of the high beam lens 400 and the high beam reflection component 300. As long as the functions achieved are basically the same, it is also within the scope of protection of this application.

[0071] In some embodiments, the reflective surface of the high-beam reflector 300 is a parabola. The light reflected by the high-beam reflector 300 is collimated parallel light, and therefore does not require a convergent focus, and no focal length is required in front of the high-beam reflector 300. The parabola has only one first focus for positioning the light source 220, and the light emitted by the light source 220 at the first focus is reflected by the parabola and emitted in a parallel manner, which can be used well as the reflective surface of the high-beam reflector 300.

[0072] refer to Figure 4 and Figure 6 In some embodiments, there are multiple high-beam reflection components 300 and corresponding light sources 220, which are arranged side by side in sequence along the width direction of the high-beam module A; the high-beam lens 400 is long and strip-shaped, and various parts of the high-beam lens 400 are respectively arranged in front of each high-beam reflection component 300.

[0073] Specifically, a plurality of identical reflectors are arranged along the width direction of the high beam module A (horizontally perpendicular to the front-back direction), and can be expanded and magnified together through a long high beam lens 400, so that a high beam module A can be formed. Figure 8 The high beam pattern shown has a larger width, which is beneficial to improving driving safety.

[0074] refer to Figure 5 In some embodiments, the light incident surface 410 of the high beam lens 400 is a cylindrical surface that is concave toward the direction away from the high beam reflection component 300, and the light exit surface 420 of the high beam lens 400 is a cylindrical surface that is convex toward the direction away from the high beam reflection component 300. The directrix of the cylindrical surface is in a vertical plane, and the curvature of the light incident surface 410 is the same as that of the light exit surface 420.

[0075] Specifically, the high beam lens 400 is a concave-convex surface type. Since the directrix of the cylinder is in the vertical plane, it has a dimming effect in the up and down directions, while the cylinder does not change the direction of the light path in the left and right directions (refer to Figure 6 As shown in the top view, the left-right direction of the light path is not magnified or reduced when the light passes through the high-beam lens 400, so the light pattern is only magnified in the up-down direction. The high-beam lens 400 can be made of PC or PMMA.

[0076] Because the curvature of the light entrance surface 410 and the light exit surface 420 of the high-beam lens 400 is identical, and the thickness of all its upper, lower, left, and right parts is uniform, there is no phase or chromatic aberration, resulting in a uniform light pattern and color, thus optimizing the color of the light pattern. Specifically, the thickness of all its upper, lower, left, and right parts along the front-to-back direction (the direction of light emission) is uniform (consistent thickness), eliminating the phase and chromatic aberration that occurs with plano-convex lenses, ensuring a uniform light pattern and color.

[0077] The high beam lens 400 amplifies the light pattern in the up and down directions, which can expand and amplify the light and is not affected by the up and down dimensions of the front opening of the lamp. The brightness and optical efficiency are significantly improved. The measured optical efficiency can reach about 60%, which is higher than the traditional high beam solution (40%-50%), and the brightness can reach 120lx.

[0078] In this embodiment, the high beam lens 400 only diffuses and amplifies the light, and there is no need to reserve a focal length behind the high beam lens 400. The light pattern and clarity will not be changed if the lens is positioned forward or backward, so it can be placed as close to the light source 220 as possible. Therefore, the total length of the entire high beam module A along the light emission direction is shorter, and the total length of the optical system in the front-to-back direction is about 50 mm. Moreover, since the high beam lens 400 no longer needs to be arranged based on the focusing focus of the high beam reflection component 300 as in the traditional solution, the light pattern and clarity will not be changed if the lens is positioned forward or backward, it can be moved in the front-to-back direction, the position accuracy requirements in the front-to-back direction are not high, and the installation and assembly difficulty is low.

[0079] refer to Figure 5In some embodiments, the thickness of each portion of the high-beam lens 400 along the front-to-back direction (the direction in which light is emitted) is 10 mm to 50 mm. Specifically, the thickness of the high-beam lens 400 is set between 10 mm and 50 mm according to optical requirements to ensure sufficient magnification.

[0080] refer to Figure 9 In some embodiments, the high beam lens 400 extends along a straight line or an arc in a horizontal plane, and an angle α between the extending direction and the width direction of the high beam module A is 5°-35°.

[0081] Specifically, the extended shape of the high beam lens 400 can be straight, or can be at a certain angle or follow the shape; the extension direction of the high beam lens 400 can be arranged at an angle relative to the width direction of the headlight system, and at this time, the angle α between the extension direction and the width direction of the high beam module A can be set between 5° and 35°.

[0082] The light emitted by the light source 220 toward the reflective surface of the high beam reflector 300 will be reflected forward by the high beam reflector 300. However, the direct light emitted by the light source 220 is not collimated by optical components and its optical path cannot be controlled. After entering the high beam lens 400 and then being emitted, it will spread everywhere, causing uncomfortable stray light. Figure 10 In some embodiments, a positioning and mounting surface 110 on the upper surface of the high-beam heat dissipation component 100 is provided with a retaining rib 120. The retaining rib 120 is arranged on the front edge of the circuit board 210 close to the high-beam lens 400, and the extension direction of the retaining rib 120 is consistent with the extension direction of the front edge of the circuit board; the height of the retaining rib 120 protruding from the positioning and mounting surface 110 is 1.0-3.5 mm.

[0083] Specifically, the rib 120 provided on the front edge of the circuit board 210 near the high-beam lens 400 has a preset height, which can effectively block the direct light emitted by the light source 220; the rib 120 extends along the front edge of the circuit board 210, which can not only block the light emitted by the light source 220 to the front, but also block the direct light diffused to both sides in the width direction, thereby fully reducing the amount of direct light directly entering the high-beam lens 400 and effectively reducing stray light.

[0084] In this embodiment, the extension direction of the rib 120 is consistent with the extension direction of the front edge of the circuit board, and the rib 120 is arranged close to the edge of the circuit board. During the design, there is no need to add a placement space for the rib 120 between the circuit board and the high beam lens 400. Adding a placement space can easily increase the total length of the optical system in the front-to-back direction, which is not conducive to the intensive layout of the car lights.

[0085] After analysis and verification, it is found that when the height of the rib 120 protruding from the positioning mounting surface 110 is greater than 3.5 mm, it will block the light emitted to the reflector and reduce the brightness of the high beam; when the height is less than 1.0 mm, the blocking effect is limited and the expected light blocking effect cannot be achieved.

[0086] refer to Figure 10 In some embodiments, a light-blocking electronic component 230 is further included, which is provided on the surface of the circuit board 210 and is directly in front of the light source 220; the light-blocking electronic component 230 is between the light source 220 and the blocking rib 120, and the distance between the light-blocking electronic component 230 and the light source 220 is 1.5-3.0 mm.

[0087] Specifically, the light-emitting circuit on the circuit board 210 is usually composed of a plurality of electronic components connected together, including capacitors, resistors and the like. In this embodiment, when the circuit board 210 is designed, one or more electronic components of the light-emitting circuit are arranged in front of the light source 220, and a corresponding light-blocking electronic component 230 is formed in front of each light source 220, which can block the direct light of the LED of the light source 220 from the front of the light source 220. The light-blocking electronic component 230 is arranged on the circuit board and the distance between it and the corresponding light source 220 can be designed to be very small, so as to The light source 220 blocks the light emitted toward the front more directly, and blocks the direct light emitted toward the high beam lens 400 toward the front to the greatest extent. After the initial blocking by the light-blocking electronic component 230, the light emitted toward the front has eliminated the portion, and then encounters the barrier rib 120. At this time, the barrier rib 120 is only responsible for eliminating stray light in the left and right width directions. Therefore, the setting height requirement of the barrier rib 120 is very low, and it only needs to be set within the range of 1.0-1.5mm. The lower height barrier rib 120 will not have any effect on the expected high beam light pattern.

[0088] The light-blocking electronic component 230 in this embodiment can be used to both conduct the circuit and block light, so there is no need to set up an additional blocking unit on the circuit board 210. Setting up a blocking unit separately will directly increase the design difficulty and complexity of the optical system, and it is also necessary to reserve layout space to increase the volume of the optical system and change the layout of the original structural components, which will increase the mold opening cost and increase the maintenance cost.

[0089] After analysis and verification, it is found that when the distance between the light-blocking electronic component 230 and the light source 220 is less than 1.5 mm, part of the light emitted to the reflector will be blocked, reducing the brightness of the high beam light type; when the distance between the light-blocking electronic component 230 and the light source 220 is greater than 3.0 mm, some direct light will enter the high beam lens 400.

[0090] On the other hand, in the traditional module, due to the thickness of the lens itself, after the light enters the lens 1', it will be totally reflected on the upper / lower surface of the lens 1'. The totally reflected light has a large deflection angle, such as Figure 11 When the light is incident on the light-emitting surface of lens 1, the incident angle β is large. Therefore, after being refracted by the light-emitting surface of the lens, the exit angle is also large, resulting in separation from the normal light pattern and forming stray light.

[0091] Lens flattening is the current trend in headlight design. As the thickness of the flatter lens increases, it leads to more severe total internal reflection. Since total internal reflection from both the upper and lower surfaces of the lens generates stray light, the stray light from the lower surface tends to concentrate upward, affecting the three zones of low beam, resulting in NG in the three-zone low beam regulatory test, and ultimately causing the entire lamp to fail the light distribution test, resulting in scrapping.

[0092] The stray light formed by total reflection on the upper surface of the headlight lens 1' will be concentrated at the bottom, forming a stray light area and a local bright spot in front of the car, such as Figure 12 As shown. And Figure 13 In the area outside the effective lighting area in front of the vehicle ( Figure 13 ) have obvious bright spots. Bright spots have multiple adverse effects, not only affecting the driver's visual experience but also posing a potential threat to nighttime driving safety. For drivers, prolonged driving in an environment with stray light from the front requires their eyes to constantly adjust to varying light intensities, which can lead to dry and fatigued eyes, slower reaction times, and decreased judgment, posing a serious threat to driving safety. Furthermore, when the road is flooded or rainy, stray light from the front of the vehicle can be reflected off the water and directly illuminate the eyes of oncoming drivers, causing glare and potentially leading to uncontrollable situations.

[0093] The traditional solution uses lens surface coating to destroy total internal reflection. This method can weaken stray light to a certain extent, but it cannot completely eliminate it. How to eliminate the stray light caused by total internal reflection on the upper and lower surfaces of the lens is still a difficult problem in the industry.

[0094] Based on this, reference Figure 14 , Figure 18-19 In some embodiments, the high beam lens 400 specifically includes:

[0095] Light-transmitting element 1000 includes a light-entering surface 1100 and a light-emitting surface 1200 arranged sequentially along the light transmission direction. Corresponding edges of light-entering surface 1100 and light-emitting surface 1200 are connected by a shielding edge surface 1300. At least a portion of shielding edge surface 1300 includes a light-eliminating structure 1400. The light-eliminating structure 1400 has a curved line profile in a longitudinal cross-section extending along the light transmission direction.

[0096] The shielding component 2000 covers the light output structure 1400 and is used to shield the light output from the surface of the light output structure 1400 and / or to absorb the light output from the surface of the light output structure 1400.

[0097] like Figure 14 A light guide structure 1400 is added to the surface of the light-transmitting element 1000. Light entering the light-transmitting element 1000 is transmitted into the light guide structure 1400. Compared to the conventional solution where light strikes the horizontal upper edge surface, the incident angle α of light striking the surface of the light guide structure 1400 is significantly smaller than the incident angle β between the light and the horizontal upper edge surface. This small incident angle α does not satisfy the conditions for total internal reflection. As a result, the vast majority of light striking the surface of the light guide structure 1400 will directly pass through the light guide structure 1400 and leak outward, without being fully reflected back into the interior of the light-transmitting element 1000.

[0098] The above-mentioned leaked light is blocked by the blocking component 2000 made of opaque material, and the blocking component 2000 can absorb the leaked light; or, the blocking component 2000 reflects the light toward the transparent element 1000, and the amount of the reflected light that can return to the transparent element 1000 again through the surface of the bent light emitting structure 1400 is very small, and the energy can only be dissipated after reciprocating reflection between the transparent element 1000 and the blocking component 2000. At this time, the bent light emitting structure 1400 has a diffuse reflection effect.

[0099] In the present application, by setting up a light emitting structure 1400, most of the light hitting the surface of the light emitting structure 1400 will directly pass through the light emitting structure 1400 and leak out, thereby preliminarily reducing stray light; and, the leaked light is absorbed by the shielding component 2000 or blocked and dissipated by reciprocating reflection between the shielding component 2000 and the surface of the light emitting structure 1400, and will not diffuse outward to form a larger range of scattering; after being blocked and absorbed by the shielding component 2000, basically no, or only a very small part of the leaked light is reflected back to the light-transmitting element 1000, and the amount of stray light is significantly reduced.

[0100] Since the amount of stray light emitted by the light-transmitting element 1000 is reduced, there is very little stray light formed by total reflection on the lower surface of the light-transmitting element 1000 in the figure that hits the upper part far in front of the vehicle, thereby avoiding affecting the three zones of low beam. The three zones of low beam pass the regulatory test and the yield rate is improved.

[0101] Figure 14 The upper surface of the medium light-transmitting element 1000 rarely has stray light caused by total reflection hitting the lower part in front of the vehicle, thus avoiding the formation of obvious bright spots in front of the vehicle (such as Figure 15), eliminating the adverse effects of stray light in front of the car, providing the driver with a better visual experience and ensuring driving safety at night.

[0102] refer to Figure 19 In some embodiments, the light emitting structure 1400 is in the shape of an elongated strip, and both ends of the light emitting structure 1400 extend to the edges of two blocking edge surfaces 1300 adjacent to the blocking edge surface 1300 where the light emitting structure 1400 is located.

[0103] Specifically, the upper, lower, left, and right edges of the light incident surface 1100 and the light emitting surface 1200 are connected by an upper blocking edge surface 1310, a lower blocking edge surface 1320, a left blocking edge surface 1330, and a right blocking edge surface 1340. In the figure, the light output structure 1400 is elongated and located on the upper blocking edge surface 1310. Both ends of the light output structure 1400 extend to the edges of the left blocking edge surface 1330 and the right blocking edge surface 1340, respectively, adjacent to the blocking edge surface 1300 where the light output structure 1400 is located. When such a setting is adopted, the light emitting structure 1400 can cover the upper blocking edge surface 1310 of the light-transmitting element 1000 in the length extension direction and connect the left blocking edge surface 1330 and the right blocking edge surface 1340, which is beneficial for the light hitting the upper blocking edge surface 1310 in the figure to contact the surface of the light emitting structure 1400 and then leak out from the light emitting structure 1400.

[0104] This embodiment takes the case where the light emitting structure 1400 is disposed on the upper shielding edge surface 1310 as an example. In other embodiments, the light emitting structure 1400 may also be disposed on the shielding edge surface 1300 on other sides, which is not limited here.

[0105] It is worth noting that the orientation mentioned in this application is determined based on the orientation installed on the vehicle, which is specifically shown in the figure.

[0106] refer to Figure 19 In some embodiments, the angle between the length extension direction of the light output structure 1400 and the direction in which the light incident surface 1100 and the light output surface 1200 are arranged in sequence is 90°. Figure 19 As shown, the light decoupling structure 1400 is an elongated strip, located on the upper shielding edge surface 1310. Its length extends in a direction perpendicular to the paper plane (connecting the left shielding edge surface 1330 and the right shielding edge surface 1340). In this case, the light decoupling structure 1400 is perpendicular to the longitudinal cross-section of the light-transmitting element 1000, and the majority of light rays in the light-transmitting element 1000 are parallel to the longitudinal cross-section. Therefore, the incident angle of the light rays hitting the surface of the light decoupling structure 1400 is small, which helps the light rays exit from the surface of the light decoupling structure 1400 and avoids total reflection back into the light-transmitting element 1000.

[0107] refer to Figure 19 In some embodiments, the bending lines are intermittent or continuous. The bending lines can be intermittent or continuous and can be freely set according to the actual product matte requirements or shape requirements.

[0108] refer to Figure 14 In some embodiments, the longitudinal cross-section (a vertical cross-section extending in the front-to-back direction) of the light decoupling structure 1400 is triangular. Specifically, as shown in the figure, when light strikes the front sidewall of the triangular design, the incident angle α is significantly smaller than the incident angle β between the light and the horizontal upper edge surface. This small incident angle α does not satisfy the conditions for total internal reflection. As a result, the vast majority of light striking the surface of the light decoupling structure 1400 will directly pass through the light decoupling structure 1400 and leak outward, without being fully reflected back into the interior of the light-transmitting element 1000.

[0109] This embodiment adopts a structural design with a triangular cross section, which can form a straight side wall, which is conducive to forming a smaller incident angle α between the light and the side wall. At the same time, the triangular structure is regular and easy to form and process.

[0110] refer to Figure 14 and Figure 19 In some embodiments, there are two or more triangles, which are arranged at intervals or continuously on the shielding edge surface 1300. The design of multiple triangles indicates that there are multiple light emitting structures 1400 arranged side by side, which can increase the probability of light hitting its surface and leaking out.

[0111] refer to Figure 16 In some embodiments, the height of the apex of the triangle protruding from the shielding edge surface 1300 is 0.5 to 2 mm. The design angle and height of the triangle are crucial to the influence of the light path, and directly affect the stray light extinction effect. If the apex of the triangle is too high, it will take up more space and affect the static appearance. If the apex of the triangle is too low, some light will be totally reflected. Actual tests show that when the height of the apex of the triangle protruding from the shielding edge surface 1300 is 0.5 to 2 mm, the extinction effect is best and the static appearance is beautiful.

[0112] refer to Figure 16In some embodiments, the vertex angle of the triangle is between 120° and 140°. The vertex angle of the triangle directly affects the light path and the extinction effect of stray light. If the vertex angle of the triangle is too small, the light will leak out of one triangular structure and then enter the front triangular structure again, and the light cannot be controlled; if the vertex angle of the triangle is too large, part of the light will be totally reflected. Actual tests show that when the vertex angle of the triangle is between 120° and 140°, the light will basically leak out from the surface of the light emitting structure 1400, and the extinction effect is better.

[0113] like Figure 17 The display light effect diagram of the optical module is shown in which the vertex of the triangular light emitting structure 1400 protrudes from the shielding edge surface 1300 by 0.5 to 2 mm and the vertex angle is 120° to 140°. Figure 15 By comparison, Figure 15 In the stray light area in front of the vehicle ( Figure 15 A faint light can be seen in the box, and Figure 17 In the front area of ​​the vehicle ( Figure 17 ), there is no longer any light, which shows that at this time, no stray light formed by total reflection on the upper surface of the light-transmitting element 1000 hits the lower part in front of the vehicle. This embodiment completely eliminates the adverse effects of stray light in front of the vehicle, the driver's visual experience is better, and the safety hazards of driving at night are completely eliminated.

[0114] refer to Figure 14 In some embodiments, the distance between the side surface of the shielding component 2000 close to the light-transmitting element 1000 and the vertex of the triangle is 1 to 1.5 mm. If the distance between the shielding component 2000 and the vertex of the triangle is set too large, the light leaked from the surface of the light-extracting structure 1400 may diverge into the external space. Therefore, in this embodiment, the distance between the shielding component 2000 and the vertex of the triangle is 1 to 1.5 mm. It has been verified that after adopting this small spacing setting method, the leaked light is absorbed by the shielding component 2000 or blocked and dissipated by reciprocating reflection between the shielding component 2000 and the surface of the light-extracting structure 1400, and will not diffuse outward to form a larger range of scattering, and the amount of stray light is significantly reduced.

[0115] refer to Figure 18 and Figure 19 In some embodiments, the upper edge portions corresponding to the positions of the light incident surface 1100 and the light emitting surface 1200 are connected via an upper blocking edge surface 1310, and the lower edge portions corresponding to the positions of the light incident surface 1100 and the light emitting surface 1200 are connected via a lower blocking edge surface 1320. Both the upper blocking edge surface 1310 and the lower blocking edge surface 1320 have a light emitting structure 1400 and are respectively covered with a blocking component 2000.

[0116] Specifically, the upper shielding edge surface 1310 and the lower shielding edge surface 1320 of the product can be designed with shielding components 2000 respectively, which can block or absorb light from the upper and lower sides respectively. When used in the low beam module, the lower surface of the light-transmitting element 1000 rarely has stray light formed by total reflection hitting the upper part far in front of the vehicle, avoiding affecting the three zones of low beam. The low beam three zones regulatory test is passed, and the yield rate is improved; moreover, the upper surface of the light-transmitting element 1000 rarely has stray light formed by total reflection hitting the lower part in front of the vehicle, avoiding the formation of bright spots in front of the vehicle, eliminating the adverse effects of stray light in front of the vehicle, providing a better visual experience for the driver, and ensuring night driving safety.

[0117] The present application also provides a headlight, comprising a low beam module B and a high beam module A. The high beam module A and the low beam module B are arranged side by side in the horizontal direction, and the high beam lens 400 is substantially the same height as the low beam lens.

[0118] The exemplary implementation of the present invention is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various variations and modifications can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present invention can be combined in various ways without exceeding the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A high beam module, characterized in that: include: a high beam heat dissipation component, wherein the upper surface of the high beam heat dissipation component is configured as a positioning mounting surface; A light source component, comprising a circuit board and a light source electrically connected to a surface of the circuit board, wherein the circuit board is fixed to a positioning and mounting surface of the high-beam heat dissipation component; A high beam reflector, provided on the positioning mounting surface, for reflecting the light emitted by the light source toward the high beam lens side into collimated light; The high beam lens is arranged on the light-reflecting side of the high beam reflecting component and is at the same height as the high beam reflecting component, and is used to expand and emit the light in the up and down directions.

2. The high beam module according to claim 1, characterized in that: In the front-to-back direction, the maximum distance between the rear end of the high-beam reflecting component and the front end of the light-emitting surface of the high-beam lens is less than or equal to 50 mm.

3. The high beam module according to claim 1, characterized in that: There are multiple high beam reflection components and corresponding light sources, which are arranged side by side in sequence along the width direction of the high beam module; the high beam lens is long and strip-shaped, and each part of the high beam lens is correspondingly arranged in front of each high beam reflection component.

4. The high beam module according to claim 1, characterized in that: The light incident surface of the high beam lens is a cylindrical surface that is concave toward the direction away from the high beam reflection component, and the light exit surface of the high beam lens is a cylindrical surface that is convex toward the direction away from the high beam reflection component. The directrix of each of the cylindrical surfaces is in a vertical plane, and the curvature of the light incident surface and the light exit surface are the same.

5. The high beam module according to claim 1, characterized in that: The thickness of each part of the high beam lens along the front-to-back direction ranges from 10 mm to 50 mm.

6. The high beam module according to claim 1, characterized in that: The high beam lens extends along a straight line or an arc in a horizontal plane, and an angle α between the extension direction of the high beam lens and the width direction of the high beam module is 5°-35°.

7. The high beam module according to claim 1, characterized in that: The positioning and mounting surface of the high beam heat dissipation component is provided with a rib, which is arranged on the front edge of the circuit board close to the high beam lens, and the extension direction of the rib is consistent with the extension direction of the front edge of the circuit board; the height of the rib protruding from the positioning and mounting surface is 1.0-3.5mm.

8. The high beam module according to claim 7, characterized in that: It also includes light-blocking electronic components, which are arranged on the surface of the circuit board and are located directly in front of the light source; the light-blocking electronic components are located between the light source and the blocking ribs, and the distance between the light-blocking electronic components and the light source is 1.5-3.0 mm.

9. The high beam module according to claim 8, characterized in that: The height of the retaining rib protruding from the positioning installation surface is 1.0-1.5 mm.

10. A vehicle lamp, characterized in that: It comprises a low beam module and the high beam module according to any one of claims 1 to 9, wherein the high beam module and the low beam module are arranged side by side in the horizontal direction, and the heights of the high beam lens and the low beam lens are substantially the same.

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