High beam module and vehicle lamp

Abstract

The high-beam module comprises a high-beam heat dissipation component, a high-beam heat dissipation component, a high-beam heat dissipation component, a high-beam heat dissipation component, a high-beam heat dissipation component, a high-beam heat dissipation component and a high-beam heat dissipation component, 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 present invention relates to the technical field of automobile lamps, and 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, and the high beam plano-convex lens and the low beam plano-convex lens are also far apart. This is not conducive to the spatial layout of the entire lamp and does not meet the styling requirements of the host.

[0003] Moreover, in the single-focus lens solution, the color of the displayed light cannot be uniform, being white in the middle and yellow (or blue) on both sides; and due to the upper and lower openings of the lens, the brightness and efficiency cannot be very high. In addition, the traditional solution requires a focal length behind the plano-convex lens, and the reflector or condenser 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. Summary of the invention

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

[0005] The present invention 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 reflection component, arranged on the positioning and 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 reflective component is upright, and the high-beam reflective component is arranged above the high-beam heat dissipation component, so that when the high-beam module and the low-beam module are arranged in the lamp in a coordinated manner up and down, the high-beam heat dissipation component and the low-beam heat dissipation component are separated, avoiding the high-beam heat dissipation component and the low-beam heat dissipation component from being adjacent to each other up and down, 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 with a conventional low beam module, the high beam lens and the low beam lens are closer in the vertical direction, which reduces the space occupied by the entire lamp in the vertical direction, is beneficial to the spatial arrangement inside the lamp, and the size of the lamp in the vertical direction becomes smaller, which can adapt to the modern host modeling requirements. When installed in a lamp and the high beam module of the present application is arranged side by side with a conventional low beam module, the high beam lens 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 vertical direction, is more beneficial to the spatial arrangement inside the lamp, and the size of the lamp in the vertical direction can be designed to be narrower, which can better adapt to the modern host modeling requirements.

[0012] The high beam module of the present application expands and amplifies the light in parallel, and the thickness of each part along the front-to-back direction is consistent, so there is no phase difference and color difference, and the light type and color are uniform; the light can be expanded and amplified, and is not affected by the up and down dimensions of the front end opening of the lamp, and 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 focusing 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 requirement in the front-to-back direction is not high, and the difficulty of installation and assembly is low.

[0014] In some embodiments, along the front-to-back direction, the maximum distance between the rear end of the high-beam reflection 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 various parts of the high beam lens are 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 retaining rib, and the retaining rib is arranged at the front edge of the circuit board close to the high beam lens, and the extension direction of the retaining rib is consistent with the extension direction of the front edge of the circuit board; the height of the retaining rib protruding from the positioning and mounting surface is 1.0-3.5mm.

[0020] In some embodiments, it also includes a light-blocking electronic component, 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, wherein 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 have substantially the same height.

[0023] The best embodiment for carrying out the present invention will be described in more detail below 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 briefly introduces the drawings of the embodiments of the present invention, wherein the drawings are only used to illustrate some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

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

[0026] Figure 2 It is a schematic diagram of the structure of a plano-convex lens 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 module forming a high beam pattern according to an embodiment of the present application;

[0033] Fig. 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] Fig.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] Fig.11 The optical path principle of stray light generated by existing car lighting solutions;

[0036] Fig.12 Schematic diagram of the scenario where stray light is generated by the existing vehicle lighting solution;

[0037] Fig.13 for Fig.12 The actual display light effect diagram of the car lighting solution;

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

[0039] Fig.15 for Fig.14 Display light effect diagram;

[0040] Fig.16 It is a schematic diagram of a high-beam lens light output 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] Fig.17 for Fig.16 Display light effect diagram;

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

[0043] Fig.19 for Fig.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-exiting 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-deriving structure;

[0054] 2000, shielding parts. 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 in conjunction with the drawings of 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 common meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not necessarily indicate a quantity limitation. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The directions described in the text are also marked accordingly in the accompanying drawings.

[0057] Currently, most 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 vertical direction, 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 vertical direction, which 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 is close to the high beam radiator 22, which is not conducive to the heat dissipation of the entire lamp).

[0058] In the case of a single-focus lens, since the plano-convex lens can be equivalent to Figure 2 The refractive index of light of different wavelengths in the transparent medium is different, which is reflected in the phase difference and chromatic aberration in the light pattern. Figure 3 As shown, the white light produced by LED is synthesized by light of different wavelengths, so the display light color of the traditional single-focus plano-convex lens solution cannot be uniform, with white in the middle and yellow (or blue) on both sides; and 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 a reflector or condenser 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 comprises:

[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 reflection component 300 is disposed on the positioning and mounting surface 110 and is used to reflect the light emitted by the light source 220 toward the high beam lens 400 side to form 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 the light in the up and down directions.

[0065] Specifically, in the present application, the high beam reflection component 300 is upright, and the high beam reflection component 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 the lamp in a coordinated manner up and down, the high beam heat dissipation component 100 is separated from the low beam heat dissipation component, so as to avoid the high beam heat dissipation component 100 and the low beam heat dissipation component from being adjacent to each other up and down, thereby improving the heat dissipation effect of the whole lamp;

[0066] When installed in a lamp and the high beam module A of the present application is arranged vertically 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 vertical direction and is beneficial to the space arrangement inside the lamp. The size of the lamp in the vertical direction becomes 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 substantially the same height in the vertical direction, further reducing the space occupied by the entire lamp in the up and down directions, and being more conducive to the spatial 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 side, 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 chromatic aberration, and the light type and color are uniform. The light can be expanded and amplified, 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 there is no convergence focus, 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 type and clarity, and it can be placed as far back as possible close to the light source 220, so 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); and, since the high-beam lens 400 no longer needs to be arranged based on the focusing focus of the high-beam reflection component 300 like the traditional solution, positioning it forward or backward will not change the light type 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 difficulty of installation and assembly 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 between 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 protection scope of this application.

[0071] In some embodiments, the reflective surface of the high-beam reflective component 300 is a parabola. The light reflected by the high-beam reflective component 300 is collimated parallel light, so there is no convergence focus, and there is no need to reserve a focal length in front of the high-beam reflective component 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 will be emitted in a parallel manner after being reflected by the parabola, which can be well used as the reflective surface of the high-beam reflective component 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 (horizontal direction perpendicular to the front-rear direction), and can be expanded and magnified together through a long strip 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 in a direction away from the high beam reflection component 300, and the light emitting surface 420 of the high beam lens 400 is a cylindrical surface that is convex in a 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 emitting 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 The top view shows that when the light passes through the high beam lens 400, the light path in the left and right directions is not enlarged or reduced, so the light pattern is only enlarged and projected in the up and down directions. The material of the high beam lens 400 can be PC or PMMA.

[0076] Since the curvature of the light incident surface 410 and the light emitting surface 420 of the high beam lens 400 is the same, and the wall thickness of each part of the upper, lower, left and right parts is the same, there is no phase difference and color difference, the light pattern color is uniform, and the color problem of the light pattern is optimized. Specifically, the thickness of each part of the upper, lower, left and right parts along the front-back direction (the direction of light emission) is consistent (equal wall thickness), so there is no phase difference and color difference like a plano-convex lens, and the light pattern color is uniform.

[0077] The high beam lens 400 amplifies the light pattern in the up and down directions, which can expand and amplify the light. It 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 the present 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. Positioning it forward or backward will not change the light pattern and clarity, so it can be placed as far back as possible close to the light source 220, so that 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, positioning it forward or backward will not change the light pattern and clarity, it is movable in the front-to-back direction, the position accuracy requirement in the front-to-back direction is not high, and the difficulty of installation and assembly is low.

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

[0080] refer to Fig. 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 obliquely relative to the width direction of the vehicle lighting 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 to 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. Fig.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, and the retaining rib 120 is arranged at 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 1.0-3.5mm.

[0083] Specifically, the rib 120 disposed 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 vehicle lights.

[0085] After analysis and verification, when the height of the rib 120 protruding from the positioning and 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 light pattern; when the height is less than 1.0 mm, the blocking effect is limited and cannot achieve the expected light blocking effect.

[0086] refer to Fig.10 In some embodiments, it also includes a light-blocking electronic component 230, which is arranged 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 the present embodiment, when the circuit board 210 is laid out, one or more electronic components of the light-emitting circuit are arranged directly in front of the light source 220, and light-blocking electronic components 230 are formed in front of each light source 220, respectively, so as to block the direct light of the LED of the light source 220 from the front of the light source 220. The light-blocking electronic components 230 are arranged on the circuit board and the distance between them and the corresponding light source 220 can be designed to be very small, so as to The light source 220 blocks the light emitted to the front more directly, and blocks the direct light emitted to the front high-beam lens 400 to the greatest extent. The light emitted to the front has been eliminated after the initial blocking by the light-blocking electronic component 230, 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 of the present embodiment can be used to both conduct the circuit and block the light, so there is no need to set up an additional shielding unit on the circuit board 210. Setting up a shielding 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 also increase the maintenance cost.

[0089] After analysis and verification, 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, part of the direct light will enter the high beam lens 400.

[0090] On the other hand, in the conventional 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 Fig.11 When the light is incident on the light-emitting surface of the lens 1, the incident angle β is large, so 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] The flattening of lenses is the current trend in the development of headlights. The flatter the lens, the more severe the total reflection will be as the thickness increases. Since the total reflection of the upper and lower surfaces of the lens will generate stray light, the stray light formed by the total reflection of the lower surface of the lens will often be concentrated on the upper side, affecting the three zones of the low beam, resulting in NG in the three-zone low beam regulation test, and then causing the entire lamp to fail the light distribution test and be scrapped;

[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 vehicle, such as Fig.12 As shown. And Fig.13 Areas outside the effective lighting area in front of the vehicle ( Fig.13 There are obvious bright spots in the box). Bright spots have many adverse effects, not only affecting the driver's visual experience, but also posing a potential threat to nighttime driving safety. For drivers, driving for a long time in an environment with stray light in front of the car requires the driver's eyes to constantly adjust to the light stimulation of different intensities, which will cause dry and tired eyes, slow the driver's reaction speed, and reduce the judgment ability, posing a serious threat to driving safety; secondly, when there is water on the road or it is raining, the stray light in front of the car may be reflected by the water surface and directly shine into the eyes of the oncoming driver, causing dazzle, which in turn leads to uncontrollable situations.

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

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

[0095] The light-transmitting element 1000 comprises a light incident surface 1100 and a light emitting surface 1200 sequentially arranged along the light transmission direction, wherein the edge portions of the light incident surface 1100 and the light emitting surface 1200 corresponding to each other are connected via a shielding edge surface 1300; at least a portion of the shielding edge surface 1300 has a light emitting structure 1400, and the contour shape of the light emitting structure 1400 on a longitudinal section extending along the light transmission direction is a bending line;

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

[0097] like Fig.14 , a light emitting structure 1400 is added to the surface of the light-transmitting element 1000, and the light entering the light-transmitting element 1000 will be transmitted into the light emitting structure 1400. Compared with the conventional solution in which the light hits the horizontal upper edge surface, the incident angle α of the light hitting the surface of the light-emitting structure 1400 is significantly smaller than the incident angle β between the light and the horizontal upper edge surface. The incident angle α is small and does not meet the condition of total reflection, so 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, and the light will not be fully reflected back into the inside 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 light-transmitting element 1000, and a small amount of the reflected light can return to the light-transmitting element 1000 through the surface of the bent light-emitting structure 1400, and the energy can only be dissipated after reciprocating reflection between the light-transmitting 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 is 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 rarely any 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 the low beam. The three zones of the low beam pass the regulatory test and the yield rate is improved.

[0101] Fig.14 The upper surface of the medium light-transmitting element 1000 rarely has stray light formed by total reflection hitting the lower part in front of the vehicle, thereby avoiding the formation of obvious bright spots in front of the vehicle (such as Fig.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 Fig.19 In some embodiments, the light emitting structure 1400 is in the shape of a long strip, and both ends of the light emitting structure 1400 extend to the edges of two shielding edge surfaces 1300 adjacent to the shielding edge surface 1300 where the light emitting structure 1400 is located.

[0103] Specifically, the edge portions of the light incident surface 1100 and the light emitting surface 1200 in the upper, lower, left and right directions are respectively connected through the upper shielding edge surface 1310, the lower shielding edge surface 1320, the left shielding edge surface 1330, and the right shielding edge surface 1340. In the figure, the light output structure 1400 is in the shape of a long strip and is located on the upper shielding edge surface 1310, and the two ends of the light output structure 1400 extend to the edges of the left shielding edge surface 1330 and the right shielding edge surface 1340 adjacent to the shielding 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 output structure 1400 is disposed on the upper shielding edge surface 1310 as an example. In other embodiments, the light output structure 1400 may also be disposed on the shielding edge surface 1300 on other sides, which is not limited here.

[0105] It is worth pointing out 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 Fig.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 emitting surface 1200 are arranged in sequence is 90°. Fig.19 As shown, the light emitting structure 1400 is in the shape of a long strip and is disposed on the upper shielding edge surface 1310, and its length extension direction is consistent with the direction perpendicular to the paper surface in the figure (connecting the left shielding edge surface 1330 and the right shielding edge surface 1340). In this case, the light emitting structure 1400 is perpendicular to the longitudinal vertical section of the light-transmitting element 1000, and most of the light in the light-transmitting element 1000 is parallel to the longitudinal vertical section, so the incident angle of the light hitting the surface of the light emitting structure 1400 is small, which is conducive to the light emitting from the surface of the light emitting structure 1400 and avoiding total reflection back to the light-transmitting element 1000.

[0107] refer to Fig.19 In some embodiments, the bending line is arranged discontinuously or uninterruptedly. The bending line can be arranged discontinuously or uninterruptedly, and can be freely arranged according to the matte requirements or modeling requirements of the actual product.

[0108] refer to Fig.14 In some embodiments, the longitudinal vertical section (vertical section extending in the front-to-back direction) of the light emitting structure 1400 is in the shape of a triangle. Specifically, in the figure, when the light hits the front side wall of the triangle design, the incident angle α is significantly smaller than the incident angle β between the light and the horizontal upper edge surface. The incident angle α is small and does not meet the condition of total reflection. Therefore, 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, and the light will not be fully reflected back into 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 Fig.14 and Fig.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 Fig.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 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 Fig.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 from a 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 extraction structure 1400, and the extinction effect will be better.

[0113] like Fig.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°. Fig.15 By comparison, Fig.15 In the stray light area in front of the vehicle ( Fig.15 A faint light can be seen in the box, and Fig.17 In the front area of ​​the vehicle ( Fig.17 There is no light in the box), which shows that at this time, there is no stray light formed by total reflection on the upper surface of the light-transmitting element 1000 that 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 hidden dangers of driving safety at night are completely eliminated.

[0114] refer to Fig.14 In some embodiments, the spacing between the side surface of the shielding component 2000 close to the light-transmitting element 1000 and the vertex angle of the triangle is 1 to 1.5 mm. If the spacing between the shielding component 2000 and the vertex angle of the triangle is set too large, the light leaked from the surface of the light emitting structure 1400 may diverge into the external space. Therefore, in this embodiment, the spacing between the shielding component 2000 and the vertex angle 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 emitting 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 Fig.18 and Fig.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, and both the upper blocking edge surface 1310 and the lower blocking edge surface 1320 have a light output 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 the low beam. The low beam three-zone regulatory test is qualified, 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 vehicle lamp, comprising a low beam module B and a high beam module A, wherein 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 modes of the present invention are 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 modifications and variations 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 protection scope of the present invention, which is determined by the attached 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 reflection component, arranged on the positioning and 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 a plurality of 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 in the shape of a long strip, and each part of the high beam lens is respectively 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 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 each of the cylindrical surfaces is in a vertical plane, and the curvature of the light incident surface is the same as that of the light exit surface.

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 retaining rib, which is arranged at the front edge of the circuit board close to the high beam lens, and the extension direction of the retaining rib is consistent with the extension direction of the front edge of the circuit board; the height of the retaining 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 as described in 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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