Low beam modules and vehicles

Abstract

This application relates to the field of vehicle technology and discloses a low beam module and a vehicle. The low beam module includes a light source assembly for emitting light; a reflector bowl defining a reflective cavity open at both ends, the reflector bowl being disposed around the periphery of the light source assembly; and a lens disposed on the side of the reflector bowl opposite to the light source assembly, the lens having a cross-section formed as an annular segment. This low beam module and vehicle, through the synergistic effect of the directional reflection of the reflector bowl and the optical diffusion of the lens, can form a clear cutoff line without the need for a light-blocking plate, expanding the light diffusion angle and light coverage range, improving illumination uniformity, enhancing illumination effect, avoiding glare to other road users, and improving visual comfort.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a low beam module and a vehicle. Background Technology

[0002] The low beam module is a key component of the automotive lighting system, primarily responsible for providing clear illumination of the road ahead at night or in low light conditions.

[0003] Traditional low beam modules consist of a light source, a light shield, and a lens. The light shield is positioned on the optical axis of the lens in front of the light source to block part of the light, allowing the light from the light source to shine directly onto the lens and illuminate the front of the vehicle. However, the light shield in traditional low beam modules is prone to thermal deformation, affecting the lighting effect. Utility Model Content

[0004] In view of this, this application provides a low beam module and vehicle that, through the synergistic effect of the directional reflection of the reflector bowl and the optical diffusion of the lens, can form a clear cutoff line without the need for a light-blocking plate, thereby expanding the light diffusion angle and light coverage, improving illumination uniformity, enhancing illumination effect, avoiding glare to other road users, and improving visual comfort.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] On one hand, this application provides a low beam module, including: a light source assembly for emitting light; a reflector bowl defining a reflective cavity open at both ends, the reflector bowl being disposed around the periphery of the light source assembly; and a lens disposed on the side of the reflector bowl opposite to the light source assembly, the lens having a cross-section formed as an annular segment.

[0007] This solution utilizes the synergistic effect of the reflector's directional reflection and the lens's optical diffusion to create a clear cutoff line without the need for a light-blocking plate, eliminating the risk of thermal deformation associated with metal light-blocking plates. Furthermore, the combination of the reflector and the annular lens allows for a wider light diffusion angle and better light diffusion capabilities. Therefore, the low-beam module of this application avoids light pattern distortion caused by light-blocking plate deformation, achieving more stable lighting performance. Through the combination of the reflector and the special lens, it also expands the light diffusion angle and light coverage, improves lighting uniformity, enhances lighting effect, avoids glare for other road users, and improves visual comfort.

[0008] In one possible implementation, the lens includes an incident surface facing the light source assembly and an emitting surface facing away from the light source assembly.

[0009] The light-incident surface and the light-exit surface have the same curvature, or the light-incident surface and the light-exit surface have different curvatures.

[0010] This design achieves optical path control by directly controlling the curvature of the lens, avoiding the problem of light pattern shift caused by the heat deformation of the light-blocking plate, and improving the optical performance stability of the low beam module.

[0011] In one possible implementation, the lens further includes transition connecting surfaces located at both ends of the light-incident surface and the light-exit surface.

[0012] The transition connection surface extends radially along the reference circle, which is the reference circle where the light-emitting surface is located.

[0013] By using a transition connection surface that extends radially along the reference circle, the propagation path of edge light is limited to a preset diffusion range, effectively suppressing stray light generation and avoiding disordered scattering of edge light caused by the deformation of the light-blocking plate in traditional designs, thus improving light uniformity.

[0014] In one possible implementation, the lens is a transparent element;

[0015] And / or, the lens surface has no textured structure;

[0016] And / or, the lens comprises at least one of optical PC or PMMA;

[0017] And / or, the lens has a diffusion angle of 45°-60° in the horizontal direction.

[0018] The lens surface has no textured structure, meaning it lacks bumps, roughness, or frosting, which prevents light scattering and uneven light spots. Optical PC or PMMA refers to polycarbonate or polymethyl methacrylate, materials with higher light transmittance than conventional plastics, allowing for improved light utilization in the design. Within this diffusion angle range, it meets the requirements for near-light coverage while avoiding excessive diffusion that wastes light energy.

[0019] In one possible implementation, the reflector bowl has a non-circular cross-section and includes two first side plates opposite each other along a first direction, at least a portion of the cross-section of the first side plates being arc-shaped.

[0020] When light emitted from the light source enters the reflecting cavity, the curved portion of the first side plate deflects the light in a preset direction, forming a preset near-beam pattern distribution. Because the reflector bowl has a non-circular structure, the diffusion characteristics of light differ in the horizontal and vertical directions. The curved section of the first side plate achieves a smooth transition of light through continuous curvature changes, avoiding the abrupt cutoff line phenomenon caused by the straight plate structure of traditional shielding plates. Thus, the structural design of the non-circular cross-section combined with the curved side plate results in asymmetrical diffusion of light during reflection, expanding the effective illumination area, improving light utilization, and extending the near-beam illumination range.

[0021] In one possible implementation, the reflector bowl further includes two second side plates opposite each other along a second direction, each second side plate having its two ends connected to the two first side plates, the second direction being perpendicular to the first direction.

[0022] The design of the second side plate optimizes the space of the reflector bowl structure, improves the light utilization rate of the reflector bowl, and enhances the uniformity of light pattern distribution. In addition, the vertical connection structure between the second side plate and the first side plate enables the reflector cavity to have self-supporting capabilities, ensuring the strength of the reflector bowl.

[0023] In one possible implementation, the cross-section of the second side plate is either arc-shaped or straight-shaped.

[0024] This design optimizes the diversity of light reflection paths, improving the uniformity and adaptability of the low beam module in different usage scenarios.

[0025] In one possible implementation, the reflective bowl includes a bowl body and a reflective layer coated on the inner surface of the bowl body.

[0026] The bowl body includes a PC component, and the reflective layer includes an aluminum film layer.

[0027] By combining the polycarbonate bowl body with the aluminum film layer, the reflector bowl structure is made lightweight and its thermal stability is improved. The high reflectivity of the aluminum film layer ensures efficient use of light and meets the requirements for light illumination.

[0028] In one possible implementation, the light source component includes:

[0029] Circuit board;

[0030] The LED light source is a plurality of LED light sources, which are disposed on the circuit board, and the circuit board is adapted to supply power to the LED light sources.

[0031] The light efficiency is improved by using multiple light sources to work together. Under different scenario requirements, the light source component can also flexibly adjust the LED arrangement density and arrangement according to the spatial layout of the vehicle headlights to achieve the preset low beam illumination range.

[0032] On the other hand, this application also provides a vehicle including the aforementioned low beam module.

[0033] The vehicle described in this application, by using the aforementioned low beam module, directly controls the light pattern through the optical cooperation of the reflector and lens, improving thermal stability and light efficiency, achieving a wider illumination angle and higher light efficiency, and avoiding vehicle maintenance caused by thermal deformation of the light shield. Furthermore, in the vehicle, this low beam module can be adapted to different front combination lamp systems, such as cornering lights and front fog lights, meeting diverse lighting needs. Attached Figure Description

[0034] Figure 1 This is a state diagram of the low beam module in use according to an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the lens structure according to an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the structure of the light source assembly and reflector bowl in an embodiment of this application. Figure 1 ;

[0037] Figure 4 This is a schematic diagram of the structure of the light source assembly and reflector bowl in an embodiment of this application. Figure 2 ;

[0038] Figure 5 This is a schematic diagram of the structure of the light source assembly and reflector bowl in an embodiment of this application. Figure 3 ;

[0039] Figure 6 This is a schematic diagram of the structure of the light source assembly and reflector bowl in an embodiment of this application. Figure 4 ;

[0040] Figure 7 This is a light pattern diagram of the auxiliary low beam of the low beam module according to an embodiment of this application;

[0041] Figure 8 This is a contour energy map of the auxiliary low beam according to an embodiment of this application;

[0042] Figure 9 The auxiliary low beam pattern of this application embodiment can also meet the F3 regulatory test diagram for front fog lights.

[0043] Figure label:

[0044] 100 - Light source assembly;

[0045] 200 - Reflector bowl; 200a - Reflector cavity; 210 - First side plate; 220 - Second side plate;

[0046] 300 - Lens; 310 - Incident surface; 320 - Exit surface; 330 - Transition connection surface. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0048] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0049] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0050] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0051] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0052] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0053] The low beam module is a key component of the automotive lighting system, primarily responsible for providing clear illumination of the road ahead at night or in low light conditions.

[0054] Traditional low beam modules consist of a light source, a light deflector, and a lens. The light deflector is positioned on the optical axis of the lens in front of the light source to block part of the light, allowing the light from the light source to shine directly onto the lens and illuminate the front of the vehicle. However, the light deflector is prone to deformation due to heat during prolonged use, causing the cutoff line to shift or become blurred, thus affecting the lighting effect.

[0055] Furthermore, the installation precision requirements for the light-blocking panels are high, increasing manufacturing costs and process complexity. In rainy, foggy, or complex road conditions, the light diffusion angle of traditional modules is limited, making it difficult to meet the lighting needs of various scenarios.

[0056] In view of this, the embodiments of this application provide a low beam module and vehicle. Through the synergistic effect of the directional reflection of the reflector and the optical diffusion of the lens, a clear cutoff line can be formed without the need for a light-blocking plate. This eliminates the risk of thermal deformation caused by metal light-blocking plates, avoids the problem of light pattern distortion caused by light-blocking plate deformation, and achieves more stable lighting performance. Through the cooperation of the reflector and the special lens, the light diffusion angle and light coverage range are also expanded, improving the uniformity of lighting, enhancing the lighting effect, avoiding glare to other road users, and improving visual comfort.

[0057] refer to Figures 1 to 6 On the one hand, this application provides a low beam module that can be used in vehicles. The low beam module includes a light source assembly 100, a reflector bowl 200, and a lens 300.

[0058] The light source assembly 100 is used to emit light, the reflector bowl 200 defines a reflective cavity 200a with open ends, the reflector bowl 200 is disposed around the light source assembly 100, and the lens 300 is disposed on the side of the reflector bowl 200 opposite to the light source assembly 100, and the cross section of the lens 300 is formed as an annular segment.

[0059] Optionally, the inner wall of the reflective cavity 200a of the reflective bowl 200 is coated with a reflective layer, which can be formed by vacuum aluminum plating. It is understood that the reflective bowl 200 has a bowl-shaped structure and can be used to directionally reflect light emitted from a light source.

[0060] Optionally, the annular segment of the lens 300 can be a lens 300 with a portion of the annular structure cut off along the circumference. The lens 300 can be made of polycarbonate material, and the curved surface of the lens 300 can achieve light diffusion.

[0061] Understandably, the open design at both ends of the reflective cavity 200a allows light to be projected from the light source assembly 100 onto the inner wall of the reflective bowl 200, then reflected, converged, and output through the lens 300. Specifically, the light emitted by the light source assembly 100 first illuminates the inner surface of the reflective bowl 200, and after reflection, forms a directional light path at a preset angle. After receiving the reflected beam from the reflective bowl 200, the annular lens 300 uses its annular curved surface to perform secondary refraction of the light, further expanding the distribution range of the light in the horizontal direction.

[0062] As is known, in the existing technology, traditional low beam modules rely on a light-blocking plate to block part of the light to form a cutoff line. This solution, however, uses the synergistic effect of the directional reflection of the reflector bowl 200 and the optical diffusion of the lens 300 to form a clear cutoff line without the need for a light-blocking plate, thus eliminating the risk of thermal deformation caused by the metal light-blocking plate.

[0063] Furthermore, the combined structure of the reflector bowl 200 and the annular segment lens 300 enables a larger light diffusion angle and better light diffusion capability. In some examples, the low beam diffusion angle in this scheme can reach 55°, while in traditional low beam modules, the low beam diffusion angle is less than 40°.

[0064] As can be seen, the low beam module provided in this application avoids the problem of light pattern distortion caused by the deformation of the light-blocking plate, and achieves more stable lighting performance. Through the cooperation of the reflector bowl 200 and the special lens 300, the light diffusion angle and light coverage range are also expanded, the lighting uniformity is improved, the lighting effect is enhanced, glare to other road users is avoided, and visual comfort is improved.

[0065] Additionally, in some examples, Figure 7 This is a light pattern diagram of the auxiliary low beam of the low beam module according to an embodiment of this application. The reflector bowl 200 is disposed below the lens 300 and covers the light source assembly 100, so that the light is focused and reflected on the inner surface of the lens 300.

[0066] Figure 8 This is a contour energy map of the auxiliary low beam according to an embodiment of this application. The lens 300 is positioned at the foremost point along the X-axis in the driving direction, and functions to cut off, diffuse, and homogenize light rays from the reflector bowl 200.

[0067] Combination Figure 7 and Figure 8 It is evident that the low beam module in this application has a better low beam illumination effect.

[0068] In some embodiments, combined with Figure 1 and Figure 2 The lens 300 includes an incident surface 310 facing the light source assembly 100 and an exit surface 320 facing away from the light source assembly 100, with the incident surface 310 and the exit surface 320 having the same curvature. In other embodiments, the incident surface 310 and the exit surface 320 have different curvatures.

[0069] The light-incident surface 310 is used to receive light emitted by the light source assembly 100. Optionally, the light-incident surface 310 can be a plane, a convex surface, or a concave surface. The light-incident surface 310 can achieve preliminary control of the light path by adjusting the distribution of the incident light.

[0070] The light-emitting surface 320 is used to project the light refracted by the lens 300 into the external space. Optionally, the shape of the light-emitting surface 320 can be selected to match the curvature shape of the light-incident surface 310, such as a plane, convex surface or concave surface. The shape of the light spot can be adjusted by controlling the refraction angle of the light-emitting surface 320.

[0071] Understandably, in some examples, when the curvature of the incident surface 310 and the exit surface 320 is the same, the light undergoes symmetrical refraction inside the lens 300, which can form a uniformly distributed near-beam pattern. This example is applicable to scenarios that require a stable illumination range.

[0072] In other examples, when the curvatures of the light-incident surface 310 and the light-exit surface 320 are different, the lens 300 can adjust the deflection angle of the light in the horizontal or vertical direction through differentiated curvature design. For example, it can increase the horizontal diffusion angle to expand the illumination width, or enhance the beam concentration in the vertical direction to increase the illumination distance.

[0073] Thus, this design achieves optical path control by directly controlling the double-sided curvature of lens 300, avoiding the problem of light pattern shift caused by heat deformation of the light-blocking plate, and improving the optical performance stability of the low beam module.

[0074] Optionally, in some examples, the cross-sectional curves of the incident surface 310 and the exit surface 320 of the lens 300 can satisfy the equation of an ellipse: x 2 / a1 2 +y 2 / b1 2= 1, where 25cm ≤ a1 ≤ 31cm, 17cm ≤ b1 ≤ 21cm, where a1 can be 25cm, 25.5cm, 25.8cm, 26cm, 26.4cm, 27cm, 27.5cm, 28cm, 28.2cm, 28.4cm, 28.8cm, 29cm, 30cm, 31cm, and b1 can be 17cm, 17.5cm, 18cm, 18.5cm, 19cm, 19.5cm, 20cm, 20.5cm, 21cm. The radius r1 of the incident light surface 310 ranges from 24cm to 28cm, and the radius r2 of the exit light surface 320 ranges from 34cm to 38cm. Of course, this application does not impose any restrictions on this, and a1 and b1 can be reasonably selected within the above ranges according to actual needs.

[0075] In some embodiments, combined with Figure 1 and Figure 2 The lens 300 also includes a transition connecting surface 330 located at both ends of the light-incident surface 310 and the light-exit surface 320. The transition connecting surface 330 extends radially along a reference circle, which is the reference circle where the light-exit surface 320 is located.

[0076] It is understandable that the transition connection surface 330 is a curved surface that connects the edges of the light-incident surface 310 and the light-outceasing surface 320, which can be used to eliminate abrupt scattering of light at the edge of the lens 300.

[0077] Specifically, the transition connection surface 330 is configured to extend radially outward along the reference circle, thereby forming a continuously gradient optical path guiding structure in the connection area between the light-incident surface 310 and the light-exit surface 320.

[0078] In some examples, when the light emitted by the light source assembly 100 is reflected by the reflector bowl 200, part of the light enters the interior of the lens 300 through the light incident surface 310. When passing through the transition connection surface 330, it can be constrained to a diffusion angle distributed radially along the reference circle, and finally forms a uniform near-beam pattern through the light exiting surface 320.

[0079] This solution uses a transition connection surface 330 extending radially along the reference circle to limit the propagation path of edge light within a preset diffusion range, effectively suppressing stray light generation and avoiding disordered scattering of edge light caused by the deformation of the light-blocking plate in traditional designs, thereby improving light uniformity.

[0080] In some embodiments, the lens 300 is a transparent component with a textureless surface. Optionally, the transparent component may be made of a colorless transparent polymer, which can reduce light loss from the lens 300. It is understood that the absence of a textured surface, i.e., the absence of bumps or frosted surfaces, prevents light scattering and uneven light spots.

[0081] In some embodiments, lens 300 includes at least one of optical PC or PMMA. It is understood that optical PC or PMMA refers to polycarbonate or polymethyl methacrylate materials, which have higher light transmittance than conventional plastic materials, and whose design can improve light utilization.

[0082] In some embodiments, the diffusion angle of the lens 300 in the horizontal direction is 45°-60°. Optionally, the diffusion angle can be 45°, 48°, 50°, 53°, 55°, or 60°. It is understood that within this diffusion angle range, the requirements for near-light coverage can be met, and excessive diffusion leading to wasted light energy can be avoided.

[0083] In some embodiments, combined with Figures 3 to 6 The cross-section of the reflector bowl 200 is non-circular. The reflector bowl 200 includes two first side plates 210 that are opposite each other along a first direction (i.e., the x-direction). At least a portion of the cross-section of the first side plate 210 is formed in an arc shape.

[0084] It is understandable that the cross-sectional shape of the non-circular cross-section, i.e. the transverse cross-section of the reflector bowl 200, differs from that of a standard circle. Optionally, the interface can be selected from geometric shapes such as ellipse, rectangle, or polygon.

[0085] Optionally, the first side plate 210 may be made of metal to ensure the strength of the reflector bowl 200.

[0086] Optionally, the inner wall of the reflector bowl 200 can be a curved surface structure formed by fusing the equations of a parabola and an ellipse, where the parabola equation satisfies: y 2 = a²x, the equation of the ellipse satisfies: x 2 / a3 2 +y 2 / b3 2 = 1, where 182 ≤ a2 ≤ 184, 10cm ≤ a3 ≤ 14cm, 1.5cm ≤ b3 ≤ 5cm. For example, a2 can be 182, 182.4, 182.6, 182.8, 183, 183.2, 183.4, 183.6, 184, etc.; a3 can be 10cm, 11cm, 12cm, 13cm, 14cm; and b3 can be 1.5cm, 2cm, 2.5cm, 3cm, 3.5cm, 4cm, 4.5cm, 5cm. Of course, this application does not impose any restrictions on this, and a2, a3, and b3 can be reasonably selected within the above range according to actual needs.

[0087] When the light emitted by the light source assembly 100 enters the reflection cavity, the arc-shaped portion of the first side plate 210 deflects the light in a preset direction, forming a preset near-light pattern distribution. Because the reflector bowl 200 has a non-circular structure, the diffusion characteristics of light differ in the horizontal and vertical directions. The arc-shaped segment of the first side plate 210 achieves a smooth transition of light through continuous curvature changes, avoiding the abrupt cutoff line phenomenon caused by the straight plate structure of traditional shielding plates.

[0088] Thus, the structural design of combining a non-circular cross section with an arc-shaped side plate allows light to diffuse asymmetrically during reflection, expanding the effective lighting area, improving light utilization, and increasing the range of near-beam illumination.

[0089] In some embodiments, combined with Figures 3 to 6 The reflector bowl 200 also includes two second side plates 220 that are opposite each other along the second direction (i.e., the y direction). Both ends of each second side plate 220 are connected to the two first side plates 210. The second direction is perpendicular to the first direction.

[0090] Optionally, the second side plate 220 can also be made of metal to ensure the strength of the reflector bowl 200.

[0091] Understandably, the first side plate 210 of the reflector bowl 200 forms an arc-shaped cross-section along a first direction to converge the light emitted by the light source assembly 100, while the second side plate 220 extends along a second direction and connects with the first side plate 210 to form a closed reflective cavity 200a. The second side plate 220 enables the reflector bowl 200 to have curved surface reflection function in both the horizontal and vertical directions. After the light is reflected by the first side plate 210 and the second side plate 220, a uniformly distributed light spot can be formed at the lens 300.

[0092] Optionally, the second side plate 220 can be made with an arc-shaped cross-section, a straight cross-section, etc. When the second side plate 220 is made with an arc-shaped cross-section, the efficiency of secondary reflection of lateral light can be enhanced.

[0093] As can be seen, the design of the second side plate 220 optimizes the space of the reflector bowl 200 structure, improves the light utilization rate of the reflector bowl 200, and enhances the uniformity of the light pattern distribution. In addition, the vertical connection structure between the second side plate 220 and the first side plate 210 enables the reflector cavity 200a to have self-supporting ability, ensuring the strength of the reflector bowl 200.

[0094] In some embodiments, the cross-section of the second side plate 220 of the reflector bowl 200 is either arc-shaped or straight-shaped.

[0095] In practical applications, the cross-section of the second side plate 220 of the reflector bowl 200 can be selected as either curved or straight, depending on the actual optical requirements. In some examples, such as when it is necessary to expand the light diffusion range, a curved cross-section can disperse the light to a wider area through curved surface reflection. In other examples, such as when it is necessary to concentrate the light direction, a straight cross-section allows the light to propagate along a predetermined path through planar reflection.

[0096] In this way, the design optimizes the diversity of light reflection paths and improves the illumination uniformity and adaptability of the low beam module in different usage scenarios.

[0097] In some embodiments, the reflective bowl 200 includes a bowl body and a reflective layer coated on the inner surface of the bowl body, wherein the bowl body includes a PC component and the reflective layer includes an aluminum film layer.

[0098] PC, or polycarbonate, is a material known for its high temperature resistance and ease of processing. Aluminum film, on the other hand, has high reflectivity, meeting the requirements for directional light reflection.

[0099] By combining the polycarbonate bowl body with the aluminum film layer, the reflector bowl 200 structure is made lightweight and its thermal stability is improved. The high reflectivity of the aluminum film layer ensures efficient use of light and meets the requirements for light illumination.

[0100] In some embodiments, a light source assembly 100 of a low beam module includes a circuit board and a plurality of LED light sources disposed on the circuit board, the circuit board being adapted to supply power to the LED light sources.

[0101] The circuit board serves as a substrate for supporting and connecting electronic components, and it also provides electrical connections and mechanical support for the LED light source. The LED light source is a light-emitting diode element, and the light emitted by the LED light source can be focused by the reflector bowl 200 to form a near-beam distribution.

[0102] Optionally, multiple LED light sources on the circuit board can be distributed in an array, such as linear arrangement or staggered arrangement.

[0103] In this way, the light efficiency is improved by multi-source synergistic light emission. Under different scenario requirements, the light source component 100 can also flexibly adjust the LED arrangement density and arrangement form according to the spatial layout of the vehicle headlights to achieve the preset low beam illumination range.

[0104] On the other hand, embodiments of this application also provide a vehicle including any of the low beam modules as described in the above embodiments.

[0105] The vehicle can be a motor vehicle equipped with the low beam module, including automobiles, motorcycles, etc. For example, the vehicle can refer to large automobiles, small automobiles, special-purpose vehicles, etc. For example, according to the power type, the automobile in this application can be a pure electric vehicle, a hybrid electric vehicle, a gasoline vehicle, etc. For gasoline vehicles, the power source can refer to a gasoline engine, a diesel engine, or other fuel-powered engine; for electric vehicles, the power source can refer to an electric motor; for hybrid electric vehicles, the power source can refer to an engine or an electric motor; for vehicles powered by other means, the power source can refer to the equipment that generates power. According to the vehicle type, the automobile in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other vehicle types.

[0106] Specifically, the vehicle's headlight system integrates the aforementioned low beam module, which achieves light diffusion control without the need for a light-blocking plate. The reflector bowl 200 and the annular lens 300 in the low beam module work together to reflect and diffuse the light emitted by the light source assembly 100 to the target area, covering a wider illumination range. Because the module itself uses a light-blocking plate-less design, problems such as light pattern shift or blurred cutoff lines caused by thermal deformation of the light-blocking plate can be avoided during prolonged vehicle use.

[0107] In this way, the vehicle can directly control the light pattern through the optical cooperation between the reflector bowl 200 and the lens 300, improving thermal stability and light efficiency, achieving a wider illumination angle and higher light efficiency, and avoiding vehicle maintenance caused by thermal deformation of the light shield. Furthermore, in vehicles, this low beam module can be adapted to different front combination lamp systems, such as cornering lights and front fog lights, meeting diverse lighting needs.

[0108] Can be combined Figure 9 , Figure 9 The auxiliary low beam pattern of this application embodiment meets the F3 regulatory test diagram for front fog lights. Therefore, the low beam module of this application can be adapted to front fog lights to meet lighting requirements.

[0109] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A low beam module for a vehicle, characterized in that include: A light source assembly for emitting light; A reflector bowl defines a reflective cavity open at both ends, and the reflector bowl is disposed around the periphery of the light source assembly; A lens is disposed on the side of the reflector bowl opposite to the light source assembly, and the cross-section of the lens is formed as an annular segment.

2. The low beam module according to claim 1, characterized in that The lens includes an incident surface facing the light source assembly and an emitting surface facing away from the light source assembly. The light-incident surface and the light-exit surface have the same curvature, or the light-incident surface and the light-exit surface have different curvatures.

3. The low beam module according to claim 2, characterized in that, The lens also includes transition connecting surfaces located at both ends of the light-incident surface and the light-outceasing surface. The transition connection surface extends radially along the reference circle, which is the reference circle where the light-emitting surface is located.

4. The low beam module according to claim 1, characterized in that, The lens is a transparent component; And / or, the lens surface has no textured structure; And / or, the lens comprises at least one of optical PC or PMMA; And / or, the lens has a diffusion angle of 45°-60° in the horizontal direction.

5. The low beam module according to any one of claims 1-4, characterized in that, The cross-section of the reflector bowl is non-circular, and the reflector bowl includes two first side plates opposite each other along a first direction, with at least a portion of the cross-section of the first side plates forming an arc shape.

6. The low beam module according to claim 5, characterized in that, The reflector bowl also includes two second side plates opposite each other along a second direction, with each end of the second side plate connected to the two first side plates, and the second direction being perpendicular to the first direction.

7. The low beam module according to claim 6, characterized in that, The cross-section of the second side plate is either arc-shaped or straight-shaped.

8. The low beam module according to claim 5, characterized in that, The reflective bowl includes a bowl body and a reflective layer coated on the inner surface of the bowl body. The bowl body includes a PC component, and the reflective layer includes an aluminum film layer.

9. The low beam module according to any one of claims 1-4, characterized in that, The light source assembly includes: Circuit board; The LED light source is a plurality of LED light sources, which are disposed on the circuit board, and the circuit board is adapted to supply power to the LED light sources.

10. A vehicle, characterized in that, Includes the low beam module according to any one of claims 1-9.

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