A low beam light path structure and its high and low beam lens module

Abstract

The present invention discloses a low beam light path structure and a high and low beam lens module thereof, aiming to solve the problem that the low beam light type produced by the existing vehicle multiple low beam light sources using a splicing method has obvious light and dark stratification, resulting in poor sensory perception. The invention includes multiple low beam light sources and multiple low beam dimming units. The low beam dimming unit includes a low beam reflective bowl and a lens arranged corresponding to the low beam light source. The lens is located on the light emitting side of the low beam reflective bowl. The lens includes a plurality of low beam emitting units. The low beam emitting units are provided with corresponding lens curvatures on the light input side according to the position on the lens. According to the lens curvature, each low beam light source independently generates a light type unit through the corresponding low beam emitting unit, thereby eliminating the light and dark stratification phenomenon and improving the visual experience.

Description

Technical Field

[0001] The present invention relates to the field of vehicle exterior lighting, and more particularly to a low beam light path structure and a high and low beam lens module thereof. Background Art

[0002] The development of vehicle exterior lighting technology has put forward more requirements on the functions of headlights. The existing light output modules all use a single large lens to achieve light output modulation. According to different light types and light effects, the headlights often need to be modified. Due to the coupling between internal components, the entire lighting device often needs to be redesigned and adjusted, which prolongs the development cycle.

[0003] The Chinese patent "CN218626579U" discloses a light output module and a low beam, high beam and high and low beam integrated lighting device, and a headlight. In order to solve the problem that in the existing light output module, in order to meet the requirements of light shape, light effect, etc., a single large lens needs to be adjusted as a whole, resulting in a relatively long research and development cycle. A light output module is adopted, which includes multiple light sources and multiple optical units, and these optical units are arranged horizontally or vertically. Each optical unit includes a reflector and a lens unit. The light source and the reflector are arranged correspondingly, the reflector has a reflective surface, and the focus of the lens unit is set on or near the reflective surface. The light is reflected by the reflective surface, and the light passes through the lens unit to form a light shape unit, and multiple light shape units are combined to form the light output light shape of the light output module. The advantage of this headlight is that the light output module is unitized, so that the optical units are relatively independent, and the modulation of each light shape is more free, which is convenient for local adjustment, avoiding the adjustment of other optical units, shortening the research and development cycle, and improving the accuracy of achieving the ideal light shape. Although it can solve the light problem of a certain lens unit, it only aims to modify the problem of the lens unit. However, the light pattern of this solution is formed by small light patterns formed by lens light-emitting units, which are then spliced ​​together to form a large and complete high and low beam light pattern, so dark areas or local overbrightness are inevitable. Summary of the invention

[0004] The present invention overcomes the disadvantage that the low beam light type produced by splicing multiple low beam light sources of existing vehicles has obvious light and dark stratification, resulting in poor sensory perception, and provides a low beam light path structure and a high and low beam lens module thereof, which can eliminate the light and dark stratification phenomenon and improve the viewing experience.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A low beam light path structure comprises a plurality of low beam light sources and a plurality of low beam dimming units, the low beam dimming units comprising a low beam reflective bowl and a low beam light emitting unit arranged corresponding to the low beam light sources, a lens being located on the light emitting side of the low beam reflective bowl, each low beam light emitting unit being arranged along a curve and formed with a lens, light generated by each low beam light source being modulated by the corresponding low beam dimming unit to form overlapping light pattern units, each light pattern unit being superimposed to increase brightness and thereby forming a low beam light pattern.

[0007] Multiple low-beam light sources independently generate light pattern units according to the corresponding low-beam dimming units. The final low-beam light pattern generated by the superposition of multiple light pattern units is uniform, avoiding the phenomenon of light and dark stratification, and providing better visual effects. This structure can also realize the unitization of the low-beam light path design and reduce the coupling degree of the light path design caused by the splicing of multiple light sources. The low-beam light pattern generated by the superposition of multiple light sources is relatively uniform, without the defects of obvious stratification of light and dark areas caused by splicing, and general visual effects.

[0008] Preferably, the lens is provided with a light-incoming surface and a light-emitting surface, the cross-section and longitudinal section of the light-emitting surface are both curved, and the lens can collimate light in at least two directions, the two directions being perpendicular to each other.

[0009] Preferably, the lens comprises an inner lens and an outer lens, the inner lens is used to collimate the light reflected by the low beam reflector bowl along a first direction, and the outer lens is used to collimate the light emitted by the inner lens along a second direction, and the first direction and the second direction are perpendicular to each other.

[0010] Preferably, the reflecting surface of the low beam reflective bowl is any one of a parabola, a quasi-parabola, an ellipsoid and a quasi-ellipsoid, and the reflecting surface can direct the light emitted by the light source to the lens in approximately parallel fashion.

[0011] A high and low beam lens module, a heat sink, a PCB, a shading bracket, a lens bracket and the low beam light path structure as described above, the PCB comprising a low beam PCB and a high beam PCB, the low beam light source is located on the low beam PCB, a plurality of high beam light sources are arranged on the high beam PCB, corresponding to the high beam light source, there is also a high beam reflector bowl arranged corresponding to the high beam light source, the lens comprises a high beam light emitting unit, the lens is located on the light emitting side of the high beam reflector bowl, and each high beam light source generates a high beam light pattern through the high beam light emitting unit.

[0012] The high and low beam lens module generates low beam light pattern and high beam light pattern independently through the low beam light source and high beam light source on the low beam PCB and high beam PCB, eliminating the mechanical structure of optical path switching and reducing costs. The low beam and high beam are cooled by a heat sink at the same time, which can improve space utilization and reduce space occupancy.

[0013] Preferably, the radiator is an integrally formed extruded part, a mounting plate is provided on the radiator, and the low beam PCB and the low beam reflective bowl as well as the high beam PCB and the high beam reflective bowl are respectively located on both sides of the mounting plate and are in contact with the mounting plate.

[0014] Preferably, the mounting plate is provided with a plurality of through holes, the through holes are arranged corresponding to the low beam light source and are arranged in front of the low beam light source, and the high beam reflective bowl is provided with pins, the pins extend through the through holes in front of the low beam light source and block the stray light generated by the low beam light source.

[0015] Preferably, the lens bracket includes a support platform, the top of the support platform is provided with a positioning support edge, the shading bracket is provided with a positioning pressure edge, the outer edge of the lens is provided with a lens positioning edge, the positioning support edge is provided with a notch, the lens positioning edge and the notch are adapted to and engaged with the positioning support edge, and the positioning pressure edge is pressed onto the positioning support edge and the lens positioning edge.

[0016] Preferably, the shading bracket is sleeved on the outside of the lens bracket, the lens bracket is provided with a first skirt, the shading bracket is provided with a second skirt, and the fastener passes through the first skirt and the second skirt to fix the shading bracket and the lens bracket to the radiator.

[0017] Preferably, a first partition plate and a second partition plate are provided on the lens bracket, the first partition plate separates low beam and high beam, there are several second partition plates, the second partition plates separate to form low beam cavities, the number of low beam cavities is consistent with the number of low beam light sources, and the second partition plates separate the light generated by the low beam light sources.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The lens modulates the light according to the position to generate a light pattern unit. The brightness is increased by superimposing multiple light pattern units. This method produces a more uniform low beam light pattern, overcoming the defect of obvious stratification of bright and dark areas and general visual effects caused by the splicing method.

[0020] (2) The radiator and the pins of the high-beam reflector bowl work together to block the low-beam light source, control the amount of stray light, and make the outline of the low-beam light pattern clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the arrangement of the low beam light source on the low beam PCB;

[0022] Figure 2 is a schematic diagram of a low beam dimming unit of the present invention;

[0023] Figure 3 is a schematic diagram of a lens of a low beam light path structure in the present invention;

[0024] Figure 4is a schematic diagram of an embodiment of a single lens of the present invention in a low beam light path structure;

[0025] Figure 5 is a schematic diagram of an embodiment of the inner and outer lenses of the present invention in a low beam light path structure;

[0026] Figures 6 to 9 The left, middle and right light type units of the present invention and the low beam light type finally generated by superposition;

[0027] Fig.10 This is an exploded view of the high and low beam lens module;

[0028] Fig.11 It is a schematic diagram of the default lens bracket and light shielding bracket of the present invention;

[0029] Fig.12 It is a schematic diagram of the heat sink, PCB and high beam reflector bowl;

[0030] Fig.13 is a schematic diagram of the positioning of the lens and the lens holder;

[0031] Fig.14 is a cross-sectional view of the lens, the lens bracket, and the light shielding bracket;

[0032] Fig.15 is a schematic diagram of the correspondence between the first partition plate and the second partition plate and the lens in the lens holder; DETAILED DESCRIPTION

[0033] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.

[0034] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.

[0037] In the present disclosure, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present disclosure can be determined according to specific circumstances, and they cannot be understood as limitations on the present disclosure.

[0038] In this application, the light output shape refers to the projection shape of the light from the headlights on the light distribution screen 25m away from the front of the vehicle, and the cut-off line refers to the dividing line where the light is projected onto the light distribution screen and the visual perception of the significant change in light and dark. The main low beam light shape is the central area light shape of the low beam light shape with high illumination, and the auxiliary low beam light shape is the widened area light shape of the low beam light shape, so that the left and right illumination range of the low beam light shape meets the requirements.

[0039] Example:

[0040] A low beam light path structure includes a plurality of low beam light sources 100 and a plurality of low beam dimming units. The plurality of low beam light sources 100 are arranged in one direction. Figure 1 As shown, each low beam light source 100 is arranged in a transverse direction. Among them, each low beam light source 100 can be roughly in a transverse direction, which does not refer to an absolute transverse direction. When specifically arranged, it should be adaptively adjusted according to the needs of the low beam dimming unit and the light distribution requirements.

[0041] Ginseng Figure 2 As shown, the low-beam dimming unit includes a low-beam reflector 120 and a low-beam light emitting unit 110 which are arranged corresponding to the low-beam light source 100. The low-beam reflectors correspond to the low-beam light sources 100 one by one.

[0042] The inner side of the reflective bowl is made of a material with low light absorption rate or is additionally provided with a corresponding coating, and the point light generated by the low beam light source 100 is collected and modulated to generate approximately parallel light rays, which are emitted toward the lens 3 .

[0043] Each low beam light emitting unit 110 is combined to form a lens 3. The lens 3 is located at the light emitting side of the low beam reflector 120. The light generated by each low beam light source 100 is reflected by the corresponding low beam reflector and emitted from the lens 3 to generate a corresponding light pattern.

[0044] Ginseng Figure 2 As shown, the lens 3 includes a plurality of low-beam light emitting units 110, and each low-beam light source 100 independently generates a light type unit through the corresponding low-beam light emitting unit 110. The shape of the light type unit is similar to the shape of the final low-beam light type. The low-beam light source 100, the low-beam reflector and the low-beam light emitting unit 110 correspond one to one. In order to obtain the light type unit generated by each of the low-beam light sources 100 mentioned above, each low-beam light emitting unit 110 is provided with a corresponding lens curvature on the light-incoming side according to the position on the lens 3. In order to realize the light type unit, the lens curvature on the light-incoming side of the low-beam light emitting unit 110 closer to the outside is smaller; each low-beam light emitting unit 110 is an integrated structure, and the cross-section of the lens light-incoming side is a convex curve. Adapting to the shape of the curve, the low-beam light emitting unit 110 on the outside has a larger inclination angle relative to the low-beam light emitting unit 110 in the middle. In addition, the convex shape of the lens 3 makes each low-beam light source 100 arranged roughly in the same straight line. Specifically, the distance between the outer low-beam light emitting unit 110 and the corresponding low-beam light source 100 is closer. Figure 3 As shown, in some embodiments, the number of the low beam light sources 100 is three, and the left and right low beam light sources 100 are arranged symmetrically about the middle low beam light source 100. The number of corresponding low beam reflectors 120 and low beam light emitting units 110 is also three, the low beam light emitting units 110 on the left and right sides are first low beam light emitting units 111, and the middle low beam light emitting unit 110 is a second low beam light emitting unit 112, and the curvature of the second low beam light emitting unit 112 on the low beam side is greater than that of the first low beam light emitting unit 111.

[0045] The light type unit refers to a light type unit generated by any low beam light source 100 and a corresponding low beam dimming unit, which is close in shape to the final low beam light type generated by the superposition of multiple low beam light sources 100: the light type unit generated by a single low beam light source 100 is lower in brightness than the final low beam light type. The difference between the shape of the light type unit and the final low beam light type mainly comes from the edge position, where the illuminance is low. When the low beam light types generated by multiple low beam light sources 100 are superimposed, the absolute value of the illuminance change is small, and the light and dark stratification is not easy to be observed and can be ignored.

[0046] In practical applications, the middle low-beam light source 100 is positioned further back than the low-beam light sources 100 on both sides, that is, closer to the reflective bowl, so that the light generated by the low-beam light source 100 can be more evenly distributed on the entire light pattern unit.

[0047] by Figure 3 and Figure 4 For example, the lens 3 is provided with a light-incoming surface 301 and a light-emitting surface 302, the cross-sectional and longitudinal cross-sectional shapes of the light-emitting surface 302 are both curves, and the lens 3 can collimate light in at least two directions, and the two directions are perpendicular to each other.

[0048] by Figure 5 For example, the lens 3 includes an inner lens 35 and an outer lens 32, wherein the inner lens is used to collimate the light reflected by the low beam reflector bowl in a first direction, and the outer lens 32 is used to collimate the light emitted by the inner lens 35 in a second direction. In order to simplify the design, the cross-section shape of the light-emitting surface 302 of the inner lens 35 in the second direction is a straight line, and the cross-section shape of the light-emitting surface 302 of the outer lens 32 in the first direction is a straight line.

[0049] refer to Figures 6 to 9 , from left to right, they are respectively the low beam patterns generated by the three low beam light sources 100 on the left, middle and right sides, and the final low beam pattern generated by the superposition of the three low beam light sources 100. 6 is the low beam pattern generated by the low beam light source 100 on the left side; 7 is the low beam pattern generated by the low beam light source 100 in the middle; 8 is the low beam pattern generated by the low beam light source 100 on the right side; 9 is the low beam pattern generated by the superposition of the low beam light sources 100. Figure 6 , Figure 7 , Figure 8 and Fig. 9 The width of the transmission image of the generated light pattern on the light distribution screen is -35 degrees to 35 degrees.

[0050] The middle low-beam light source 100 is closer to the reflective bowl than the left and right low-beam light sources 100 .

[0051] The reflecting surface of the low beam reflector bowl is any one of a parabola, a quasi-parabola, an ellipsoid and a quasi-ellipsoid, and the reflecting surface can direct the light emitted by the light source to the lens 3 in approximately parallel fashion.

[0052] The multiple low beam light sources 100 independently generate low beam light patterns according to the corresponding low beam dimming units. This structure can realize the unitization of low beam light path design and reduce the coupling degree of light path design caused by splicing multiple light sources. The low beam light pattern generated by the superposition of multiple light sources is relatively uniform, without the defects of obvious stratification of bright and dark areas and general visual effects caused by splicing.

[0053] For subsequent research and development work, such as further improving the low beam brightness, it is only necessary to add low beam light sources 100 on both sides, and expand the corresponding low beam output units 110 on both sides based on the existing lens 3 to achieve further improvement in brightness. It is only necessary to design the shape of the newly expanded low beam output unit 110 without redesigning the entire lens 3, which improves design efficiency and reduces design costs.

[0054] Based on the low beam light path structure of this embodiment, Fig.10 , 11 , and also has a high and low beam lens module.

[0055] The high and low beam lens module comprises a heat sink 30, a PCB, a light shielding bracket 5, a lens bracket 6 and the low beam light path structure as described above.

[0056] Among them, PCB4 includes a low-beam PCB41 and a high-beam PCB42, the low-beam light source 100 is located on the low-beam PCB41, and a plurality of high-beam light sources are arranged on the high-beam PCB42. The low-beam PCB41 and the high-beam PCB42 respectively have corresponding peripheral electrical structures of the low-beam light source 100 and the high-beam light source, and the models and connection forms of the components are common knowledge in the art and have nothing to do with the content of this application, and are not further disclosed in this application.

[0057] The high-beam light source also includes a high-beam reflector 220 corresponding to the high-beam light source, the lens 3 includes a high-beam light-emitting unit 210, the lens 3 is located on the light-emitting side of the high-beam reflector 220, and each high-beam light source generates a high-beam light pattern through the high-beam light-emitting unit 210. The high-beam light-emitting unit 210 is also an integrated structure like the low-beam light-emitting unit 110. The lens 3 is divided into a plurality of low-beam light-emitting units 110 on one side and a high-beam light-emitting unit 210 on the other side along the extension line of the mounting plate 33.

[0058] The correspondence between the high beam light source and the high beam reflector 220 can be one-to-one or many-to-one, and the present application does not limit the correspondence between the high beam light source and the high beam reflector 220. However, the number of high beam light emitting units 210 is a single one, and multiple high beam light sources are used to splice one high beam light emitting unit 210 to obtain the final high beam light pattern.

[0059] Each low beam light emitting unit 110 and high beam light emitting unit 210 is integrally formed to form a lens 3. The lens 3 is integrally formed by injection molding or machining. Alternatively, for an embodiment in which an inner lens 35 and an outer lens 32 are provided to form the low beam light emitting unit 110, the high beam light emitting unit 210 is an integral structure with one of the inner lens 35 or the outer lens 32.

[0060] Ginseng Fig.10 , 11 As shown, the radiator 30 is an integrally formed extruded part, and the radiator 30 has a heat dissipation platform 31, and a plurality of heat dissipation fins 34 extend in a normal direction of the heat dissipation platform 31. A mounting plate 33 is provided on the radiator 30, and the mounting plate 33 is arranged on the side of the heat dissipation platform 31 away from the heat dissipation fins 34. The low beam PCB 41 and the low beam reflector 120 and the high beam PCB 42 and the high beam reflector 220 are respectively located on both sides of the mounting plate 33 and are fitted with the mounting plate 33. The high beam light source is arranged on the high beam PCB 42. The low beam light source 100 and the high beam light source are separated by the mounting plate 33 to avoid the light generated by the high beam light source and the low beam light source 100 from being mixed, which affects the light pattern effect.

[0061] Specifically, the low beam reflector 120 and the high beam reflector 220 are both provided with skirts 221, which are fitted with the mounting plate 33 or PCB4, at least one of the two skirts 221 has a through hole 223, and the other is formed with a hole seat, and the fastener passes through the through hole 223 through the low beam reflector 120, the low beam PCB41, the mounting plate 33, and the high beam PCB42 and is inserted into the high beam reflector 220 for fixing. The heat on the PCB4, the low beam reflector 120, and the high beam reflector 220 is transferred to the radiator 30 by heat conduction for heat dissipation.

[0062] In some possible solutions, a heat pipe is embedded in the mounting plate 33, and the heat pipe extends into the heat dissipation platform 31. The heat pipe has a higher thermal conductivity than the aluminum profile, thereby improving the heat dissipation efficiency, maintaining the life and stability of the light source, increasing the upper limit of the heat dissipation capacity, and supporting a larger number of light sources.

[0063] The plurality of low beam reflectors 120 are integrally structured, and the plurality of high beam reflectors 220 are integrally structured. In other embodiments, each low beam reflector 120 and the plurality of high beam reflectors 220 are independent and are directly or indirectly fixed to the fixing plate through the skirt 221, respectively, and this application does not limit this.

[0064] The radiator 30 is an aluminum profile formed by extrusion, and the cross section is extended horizontally. After forming, it is processed twice, and the heat dissipation efficiency is better. Compared with the existing die-casting radiator 30, the production efficiency is higher. The fins of the radiator 30 have dense wave patterns and strong fin heat dissipation capacity. By using a radiator 30 to dissipate heat for both low and high beams, it can improve space utilization and reduce space occupancy.

[0065] Ginseng Fig.12 As shown, the mounting plate 33 is provided with a plurality of through holes 331, and the through holes 331 are arranged corresponding to the low beam light source 100 and arranged in front of the low beam light source 100, and the high beam reflector 220 is provided with pins 222, and the low beam PCB 41 avoids these through holes 331, and the pins 222 extend in front of the low beam light source 100 through the through holes 331 and block the stray light generated by the low beam light source 100, thereby forming a cutoff line of the low beam light type. In the above-mentioned embodiment of the low beam light path structure, the number of the pins 222 is three, and the middle low beam light source 100 is closer to the low beam reflector 120 than the left and right low beam light sources 100. To adapt to this feature, the pin 222 corresponding to the middle low beam light source 100 is also further back than the other two pins 222.

[0066] Ginseng Fig.13As shown, the lens support 6 includes a hollow support platform 61, the cross section of the support platform 61 is annular, and a positioning support edge 611 is provided on the top of the support platform 61. The light shielding support 5 is provided with a positioning pressure edge 51, and the outer edge of the lens is provided with a lens positioning edge 303. The positioning support edge 611 is provided with a notch. The local height of the top of the support platform 61 is lower than the positioning support edge 611, thereby generating the notch. The lens positioning edge 303 and the notch are adapted to and fit with the positioning support edge 611, thereby limiting the freedom of the lens 3 except for the movement in the height direction. Fig.14 As shown, the positioning pressing edge 51 is pressed onto the positioning supporting edge 611 and the lens positioning edge 303 to limit the lens 3 from escaping in the height direction and completely position the lens 3.

[0067] For the embodiment using inner and outer lenses 32, the lens bracket 6 is a two-section structure, and the lens bracket 6 may include an upper bracket and a lower bracket. The lower bracket is fixedly connected to the heat sink 30, and the top of the lower bracket positions the inner lens 35 through the aforementioned positioning support edge 611 and the lens positioning edge 303 structure. The upper bracket presses the positioning support edge 611 and the lens positioning edge 303 in a manner similar to the shading bracket 5, and the top of the outer lens 32 positions the outer lens 32 in a manner similar to the positioning support edge 611 and the lens positioning edge 303, and then is positioned through the shading bracket 5 to achieve the positioning of the inner and outer lenses 32.

[0068] The light shielding bracket 5 is mounted on the outside of the lens bracket 6. In some embodiments, the inner wall of the light shielding lens fits the outer wall of the lens bracket 6. The light shielding lens is made of a non-light-transmitting material to shield the interference caused by the cross-light phenomenon or the entry of external light. The lens bracket 6 is provided with a first skirt 612, and the light shielding bracket 5 is provided with a second skirt 52. The fastener passes through the first skirt 612 and the second skirt 52 to fix the light shielding bracket 5 and the lens bracket 6 to the radiator 30.

[0069] Ginseng Fig.15 As shown, the lens bracket 6 is provided with a first partition plate 62 and a second partition plate 63. The first partition plate 62 separates the low beam and the high beam. The first partition plate 62 is coplanar with the mounting plate 33 to avoid the phenomenon of light crosstalk. There are a plurality of second partition plates, which separate and form low beam cavities. The number of low beam cavities is consistent with the number of low beam light sources 100. The second partition plates separate the light generated by the low beam light sources 100, so that the low beam light pattern profile generated by each low beam light source 100 is clearer.

[0070] The embodiments described above are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A high and low beam lens module, characterized in that: The invention comprises a heat sink, a PCB, a shading bracket, a lens bracket and a low beam light path structure, wherein the low beam light path structure comprises a plurality of low beam light sources and a plurality of low beam dimming units, the low beam dimming unit comprises a low beam reflective bowl and a low beam light emitting unit which are arranged corresponding to the low beam light sources, the low beam light emitting unit is located at the light emitting side of the low beam reflective bowl, each low beam light emitting unit is arranged along a curve and is formed with a lens, light generated by each low beam light source is modulated by the corresponding low beam dimming unit to form a light type unit which overlaps, and each light type unit is superimposed to increase the brightness to form a low beam light type, wherein the curvature of the lens on the light inlet side of the low beam light emitting unit closer to the outside is smaller; each low beam light emitting unit is an integrated structure, and the cross section of the light inlet side of the lens is in the shape of a convex curve; the outer side surface of the lens is a continuous and smooth curved surface; there are three low beam light emitting units, the low beam light emitting units on the left and right sides are the first low beam light emitting units, the low beam light emitting unit in the middle is the second low beam light emitting unit, and along the direction away from the second low beam light emitting unit, the first The thickness of the low beam light emitting unit gradually increases, and the thickness of the first low beam light emitting unit gradually decreases from the lower part to the upper part of the first low beam light emitting unit. The PCB includes a low beam PCB and a high beam PCB. The low beam light source is located on the low beam PCB. A plurality of high beam light sources are arranged on the high beam PCB. Corresponding to the high beam light source, a high beam reflector bowl is also arranged corresponding to the high beam light source. The lens includes a high beam light emitting unit. The lens is located on the light emitting side of the high beam reflector bowl. Each high beam light source generates a high beam light pattern through the high beam reflector bowl and the high beam light emitting unit. The radiator is an integrally formed extruded part. A mounting plate is arranged on the radiator. The low beam PCB and the low beam reflector bowl, as well as the high beam PCB and the high beam reflector bowl, are respectively located on both sides of the mounting plate and are fitted with the mounting plate. A plurality of through holes are arranged on the mounting plate. The through holes are arranged corresponding to the low beam light source and are arranged in front of the low beam light source. The high beam reflector bowl is provided with a pin. The pin extends in front of the low beam light source through the through hole and blocks the stray light generated by the low beam light source.

2. A high and low beam lens module according to claim 1, characterized in that: The lens is provided with a light-incoming surface and a light-emitting surface, the cross-section and the longitudinal section of the light-emitting surface are both curves, and the lens can modulate light in at least two directions, and the two directions are perpendicular to each other.

3. The high and low beam lens module according to claim 1, characterized in that: The lens comprises an inner lens and an outer lens, wherein the inner lens is used to modulate the light reflected by the reflective bowl along a first direction, and the outer lens is used to modulate the light emitted by the inner lens along a second direction, and the first direction and the second direction are perpendicular to each other.

4. The high and low beam lens module according to claim 1, characterized in that: The reflecting surface of the reflective bowl is any one of a parabola, a quasi-parabola, an ellipsoid and a quasi-ellipsoid, and the reflecting surface can direct the light emitted by the light source to the lens in parallel.

5. The high and low beam lens module according to claim 1, characterized in that: The lens bracket includes a support platform, the top of the support platform is provided with a positioning support edge, the shading bracket is provided with a positioning pressure edge, the outer edge of the lens is provided with a lens positioning edge, the positioning support edge is provided with a notch, the lens positioning edge and the notch are adapted to and embedded with the positioning support edge, and the positioning pressure edge is pressed onto the positioning support edge and the lens positioning edge.

6. The high and low beam lens module according to claim 1, characterized in that: The shading bracket is sleeved on the outside of the lens bracket, the lens bracket is provided with a first skirt, the shading bracket is provided with a second skirt, and the fastener passes through the first skirt and the second skirt to fix the shading bracket and the lens bracket to the radiator.

7. A high and low beam lens module according to any one of claims 1, 5 or 6, characterized in that: A first partition plate and a second partition plate are provided on the lens bracket. The first partition plate separates low beam and high beam. There are several second partition plates. The second partition plates separate to form low beam cavities. The number of low beam cavities is consistent with the number of low beam light sources. The second partition plates separate the light generated by the low beam light sources.

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