Vehicle headlamp lens module

Abstract

The utility model provides a vehicle headlight lens module, which comprises a light source module, a light source module, a light source module, a light source module and a light source module, wherein the light source module comprises at least one low-beam light source and at least one high-beam light source; the first side of the lens module I is provided with a first light inlet part facing the low beam light source and a second light inlet part facing the high beam light source, and the second side of the lens module I is provided with a first protrusion corresponding to the first light inlet part and a second protrusion corresponding to the second light inlet part. The end face of the first protrusion serves as a first light-emitting face, the end face of the second protrusion serves as a second light-emitting face, and the second light-emitting face is an arc-shaped face. And the lens module II is arranged at the light emitting end of the lens module I. According to the vehicle headlamp lens module, the light energy utilization rate can be effectively improved, light ray loss is avoided, meanwhile, through the reasonably-arranged design of the reflecting face and the light-emitting face, efficient utilization and uniform distribution of light rays are achieved, the definition and uniformity of illumination are improved, and the glare phenomenon is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle headlamp, in particular to a vehicle headlamp lens module. BACKGROUND

[0002] The headlamp of a motorcycle or an electric vehicle is a core safety component for night driving, and generally adopts a reflective or projection optical system to realize high / low beam functions. Limited by the compactness of the motorcycle or electric vehicle head space, the headlamp module is usually designed with high integration.

[0003] However, due to the structure, the existing headlamp has uneven light distribution on the ground when in use, with obvious bright-dark boundary, lack of gray-scale transition between the dark area above the cutoff line and the bright area below, and hard transition, which does not meet the visual comfort requirement of the human eye for light change, affects the use experience, and affects the driver's judgment of road conditions, especially in complex road conditions such as curves or slopes, which has certain safety hazards. SUMMARY

[0004] The utility model wants to solve the technical problem of providing a vehicle headlamp lens module with compact structure, small size, convenient installation and good light output effect.

[0005] The utility model provides a vehicle headlamp lens module, comprising:

[0006] The light source module comprises at least one low beam light source and at least one high beam light source;

[0007] The lens module I is provided with a first light inlet portion facing the low beam light source and a second light inlet portion facing the high beam light source on the first side, and is provided with a first protrusion corresponding to the first light inlet portion and a second protrusion corresponding to the second light inlet portion on the second side, the end face of the first protrusion serves as a first light outlet face, the end face of the second protrusion serves as a second light outlet face, and the second light outlet face is an outwardly convex arc face;

[0008] The lens module II is arranged at the light outlet end of the lens module I and has a third light inlet face facing the lens module I and a third light outlet face facing away from the lens module I.

[0009] Further, the protrusion height of the first protrusion is greater than the protrusion height of the second protrusion.

[0010] Further, the second protrusion is an arc protrusion.

[0011] Further, the axis direction of the second light outlet face is parallel to the horizontal plane.

[0012] Further, the first end of the second light-out surface is connected with the first protrusion, and the second end of the second light-out surface is provided with a round corner.

[0013] Further, the second protrusion is two and symmetrically arranged on both sides of the first protrusion.

[0014] Further, the lens module I and the lens module II are both provided with a supporting leg, and the supporting leg is provided with a mounting hole and a positioning protrusion.

[0015] Further, the first light-out surface is a plane.

[0016] Further, the first light-out surface is provided with a plurality of strip-shaped protrusions, the cross section of the strip-shaped protrusion is arc-shaped, and the length direction of the strip-shaped protrusion is perpendicular to the length direction of the lens module I.

[0017] Further, the third light-out surface is an arc surface, and the axis direction of the third light-out surface is parallel to the horizontal plane.

[0018] Further, the first light-in part and the second light-in part are circular bosses, the cross section diameter of the circular boss gradually increases from the light-in end to the light-out end, the side wall of the circular boss forms a reflecting surface, and the end part of the circular boss is provided with a concave hole and forms a light-in hole.

[0019] Further, the side wall of the circular boss is an outward convex arc surface.

[0020] Further, the side wall of the first protrusion is an inclined surface, the cross section of the first protrusion is a rectangle, and the cross section area gradually decreases from the light-in end to the light-out end.

[0021] Further, the cross section of the first protrusion is a rectangle.

[0022] In the application, the light source module includes a high beam light source and a low beam light source, which respectively provide high beam and low beam illumination, the lens module I includes a first light entrance part and a second light entrance part, which are respectively used for receiving light of the high beam light source and the low beam light source, and realizing light emission through the first light exit surface and the second light exit surface of the first convex and the second convex at corresponding positions, which constructs independent light paths through physically separated light entrance parts, and avoids mechanical edge projection caused by traditional light shade switching from the root; wherein the second light exit surface is designed as an arc surface, so that controllable scattering of the light rays is generated, a gradual transition is formed, and a bright-dark boundary line is eliminated; the lens module II is arranged at the light exit end of the lens module I, and further adjusts the distribution and intensity of the light rays, and ensures good illumination effect. When working, the light generated by the low beam light source enters the lens module I through the first light entrance part, is converged and emitted through the first light exit surface on the first convex; the light generated by the high beam light source enters the lens module I through the second light entrance part, is refracted again through the arc-shaped second light exit surface on the second convex and emitted, and the lens module II further optimizes the light ray distribution, so that accurate control and efficient illumination of the high beam and the low beam are realized; the vehicle headlamp lens module has compact structure, can effectively improve light energy utilization rate, avoids light loss, simultaneously realizes efficient utilization and uniform distribution of the light rays through the design of the reasonably arranged reflecting surface and light exit surface, improves the clarity and uniformity of illumination, effectively reduces the glare phenomenon, and improves the driving safety and comfort. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the vehicle headlamp lens module of the utility model;

[0024] Figure 2 It is an explosion structural schematic view of the vehicle headlamp lens module of the utility model;

[0025] Figure 3 It is a first plane sectional view of the vehicle headlamp lens module of the utility model;

[0026] Figure 4 It is a second plane sectional view of the vehicle headlamp lens module of the utility model;

[0027] Figure 5 It is a structural schematic view of the lens module II of the vehicle headlamp lens module of the utility model;

[0028] Figure 6 It is another angle structural schematic view of the lens module II of the vehicle headlamp lens module of the utility model;

[0029] Figure 7 It is a structural schematic view of the lens module I of the vehicle headlamp lens module of the utility model;

[0030] Figure 8Another angle structure schematic view of the lens module I of the vehicle headlamp lens module group of the utility model.

[0031] In the drawing: 1, support, 2, PCB board, 21, low beam light source, 22, high beam light source, 3, lens module I, 31, first protrusion, 31a, first light-out surface, 311, strip-shaped protrusion, 312, first light-in part, 32, second protrusion, 32a, second light-out surface, 321, round angle, 322, second light-in part, 33, first supporting leg, 331, first positioning protrusion, 332, first mounting hole, 4, lens module II, 4a, third light-out surface, 4b, third light-in surface, 41, annular protrusion, 42, second supporting leg, 421, second positioning protrusion, 422, second mounting hole. DETAILED DESCRIPTION

[0032] The utility model embodiment will be introduced in detail below in combination with the drawings.

[0033] Reference Figures 1-8 The utility model provides a kind of vehicle headlamp lens module, including support 1, support 1 is made of metal, preferably aluminum, it is as installation carrier, with good heat dissipation function simultaneously, light source module, lens module I 3 and lens module II 4 are provided on support 1.

[0034] Light source module includes at least one low beam light source 21 and at least one high beam light source 22, in the embodiment, light source module includes one PCB board 2, low beam light source 21 and high beam light source 22 are arranged on the PCB board 2, above-mentioned low beam light source 21 and high beam light source 22 are LED lamp pearl.

[0035] Lens module I 3 is arranged at the light-out side of light source module, for the light distribution of light emitted by light source module, the first side of this lens module I 3, i.e. the side towards light source module, is equipped with first light-in part 312 and second light-in part 322, wherein, first light-in part 312 is towards low beam light source 21, for receiving the light emitted by low beam light source 21, second light-in part 322 is towards high beam light source 22, for receiving the light emitted by high beam light source 22;In the second side of lens module I 3, i.e. the side away from light source module, is equipped with first protrusion 31 and second protrusion 32, first protrusion 31 corresponds with first light-in part 312, i.e. first protrusion 31 is arranged in the light-out direction of first light-in part 312, second protrusion 32 corresponds with second light-in part 322, i.e. second protrusion 32 is arranged in the light-out direction of second light-in part 322, the end face of first protrusion 31 as first light-out surface 31a, the end face of second protrusion 32 as second light-out surface 32a, simultaneously, second light-out surface 32a is outwardly convex arc surface, in the embodiment, second protrusion 32 is arc protrusion.

[0036] The lens module II 4 is arranged at the light-emitting end of the lens module I 3, and is used for re-distribution of the light emitted by the lens module I 3.

[0037] In the present application, the light source module includes a high beam light source and a low beam light source, which respectively provide high beam and low beam illumination, and the lens module I includes a first light inlet portion and a second light inlet portion, which are respectively used for receiving the light of the low beam and high beam light sources, and the light is emitted through the first light-emitting surface and the second light-emitting surface of the first protrusion and the second protrusion at the corresponding positions, which builds independent light paths through physically separated light inlet portions, and avoids mechanical edge projection caused by traditional light-shielding sheet switching from the root; wherein the second light-emitting surface is designed as an arc surface, so that the emitted light rays produce controllable scattering, form a gradual transition, and eliminate the bright-dark boundary line; the lens module II is arranged at the light-emitting end of the lens module I, and further adjusts the distribution and intensity of the light rays to ensure good illumination effect. When working, the light generated by the low beam light source enters the lens module I through the first light inlet portion, is converged, and is emitted through the first light-emitting surface on the first protrusion; the light generated by the high beam light source enters the lens module I through the second light inlet portion, is emitted after being refracted again through the arc-shaped second light-emitting surface on the second protrusion, and the lens module II further optimizes the light distribution, thereby realizing precise control of high beam and low beam and efficient illumination.

[0038] In the present embodiment, the axis direction of the arc surface of the second light-emitting surface 32a is parallel to the horizontal plane, and the second protrusion 32 is a horizontally arranged columnar structure, and the side wall of the columnar structure is arc-shaped, that is, the second light-emitting surface 32a, as shown in Figure 7 which makes the light emitted by the second light-emitting surface 32a uniformly diffuse in the vertical direction, improves the uniformity of light emission, realizes uniform transition in the vertical direction, avoids the appearance of obvious bright-dark boundary line, and thereby optimizes the high beam illumination effect; a round corner 321 is arranged at the outer end of the second light-emitting surface 32a, and through the arrangement of the round corner 321, the light emitted by the outer end of the second light-emitting surface 32a can be softened, the abrupt change of the light at the two light-emitting ends is reduced, and the irradiation angle can be increased outwardly; specifically, the first end of the second light-emitting surface 32a is connected with the first protrusion 31, or the first end of the second protrusion 32 is connected with the first protrusion 31, and the second end of the second light-emitting surface 32a is provided with a round corner 321, or the second end of the second protrusion 32 is provided with a round corner 321.

[0039] In the present application, the second protrusion 32 is two, and the two second protrusions 32 are symmetrically arranged on both sides of the first protrusion 31, and the corresponding light sources of the two second protrusions 32 are also two, which on the one hand increases the light output of the high beam illumination, improves the brightness of the high beam illumination, and at the same time, increases the coverage angle (range) of the high beam illumination, and reduces the blind area; and the two symmetrically arranged second protrusions 32 realize the balance of light intensity distribution in optical design.

[0040] In order to achieve better illumination effect, the protrusion height of the first protrusion 31 is greater than the protrusion height of the second protrusion 32, which can prolong the light path through the first protrusion 31, improve collimation, shorten the light path through the second protrusion 32, accelerate scattering, and improve the uniformity of the light emitted.

[0041] The first light emitting surface 31a is a plane, so that the low beam light source 21 maintains high collimation when emitting through the first light emitting surface 31a, improving the illumination distance. Meanwhile, a strip-shaped protrusion 311 is arranged on the first light emitting surface 31a. The strip-shaped protrusion 311 is linear, and its length direction is perpendicular to the length direction of the lens module I 3, i.e. perpendicular to the horizontal direction. There are multiple strip-shaped protrusions 311, and they are arranged in sequence along the length direction of the transparent module I 3. The cross section of the strip-shaped protrusion 311 is arc-shaped, which can fine-tune the emitted light, so that the light forms a certain diffusion angle in the horizontal direction, thereby improving the coverage of the low beam lighting, avoiding obvious bright-dark boundaries, and achieving soft transition.

[0042] The light emitting surface of the lens module II 4 is an arc surface. Specifically, the lens module II 4 has a third light entering surface 4b and a third light emitting surface 4a. The third light entering surface 4b is a plane, and its direction is towards the light emitting surface of the lens module I 3. The third light emitting surface 4a is an arc surface, and its axis direction is parallel to the horizontal plane. The lens module II 4 is a columnar structure arranged horizontally as a whole. The light emitting surface of the columnar structure is arc-shaped. Referring to Figure 5 This makes the light emitted by the third light emitting surface 4a uniformly diffuse in the vertical direction, improves the uniformity of light emission, realizes uniform transition in the vertical direction, avoids obvious bright-dark boundaries, and thus optimizes the high beam lighting effect. On the other hand, the above structure can avoid the generation of focusing structure, prevent external light such as sunlight from being focused on the lens module II 4, and thus damage the internal lens or other components, thereby improving the service life and safety of the product.

[0043] In order to improve the aesthetic appearance, a ring-shaped protrusion 41 is arranged at the edge of the third light entering surface 4b.

[0044] The cross section of the first protrusion 31 is rectangular, and the side wall is a slope. The cross section of the first protrusion 31 gradually decreases from the light entering end to the light emitting end, i.e. the shape is trapezoidal. The design of the slope is conducive to the refraction and collimation of incident light, thereby improving the range and clarity of the low beam lighting.

[0045] In order to improve the utilization of light, in the application, the first light inlet part 312 and the second light inlet part 322 are circular bosses, the cross-sectional diameter of the circular boss gradually increases from the light inlet end to the light outlet end, the side wall of the circular boss is an outward convex arc surface, which forms a reflecting surface, and at the end of the circular boss, a recess hole is provided and forms a light inlet hole, which is directed to the light source, so that more light can be guided into the boss, greatly improving the light collection efficiency of the LED 120° divergence angle, and the light is uniformly conducted to each light outlet part through the reflecting effect of the side wall, further improving the uniformity and brightness of the overall illumination.

[0046] In order to facilitate installation, in the application, the lens module I 3 and the lens module II 4 are both provided with a support leg for fixing to the support 1, and the support leg is provided with a mounting hole and a positioning protrusion.

[0047] Specifically, a plurality of first support legs 33 are provided on the lens module I 3, three in this embodiment, and are distributed in a triangular shape, ensuring the stability and positioning accuracy of the lens module I 3 during installation, a mounting surface is formed at the end of the first support leg 33, a first mounting hole 332 and a first positioning protrusion 331 are provided on the mounting surface, a first positioning hole corresponding to the first positioning protrusion 331 and a first screw hole corresponding to the first mounting hole 332 are provided on the support 1; a plurality of second support legs 42 are provided on the lens module II 4, two in this embodiment, and are arranged on both sides of the lens module II 4, a mounting surface is formed at the end of the second support leg 42, a second mounting hole 422 and a second positioning protrusion 421 are provided on the mounting surface, a second positioning hole corresponding to the second positioning protrusion 421 and a second screw hole corresponding to the second mounting hole 422 are provided on the support 1, the quick positioning of the lens module II 4 is realized through the cooperation of the positioning protrusion and the positioning hole, and the assembly efficiency and accuracy are improved.

[0048] The lens module I 3 and the lens module II 4 in the application are integrally injection molded by using high-transmittance optical material, which improves the light transmission performance and structural strength of the material, and at the same time reduces the production cost.

[0049] In the present application, the light source module includes a high-beam light source and a low-beam light source, which provide high-beam and low-beam lighting respectively. The lens module I includes a first light input part and a second light input part, which are respectively used to receive light from the low-beam and high-beam light sources, and realize light emission through the first light output surface and the second light output surface of the first protrusion and the second protrusion at the corresponding position. It constructs an independent light path through the physically separated light input parts, and avoids the mechanical edge projection caused by the switching of traditional shading sheets from the root; wherein, the second light output surface is designed to be an arc surface, so that the output light produces controllable scattering, forming a gradual transition, and eliminating the bright and dark dividing line; the lens module II is arranged at the light output end of the lens module I to further adjust the distribution and intensity of the light to ensure a good lighting effect. During operation, light generated by the low beam light source enters the lens module I through the first light entrance portion, and is emitted through the first light exit surface on the first protrusion after being converged; light generated by the high beam light source enters the lens module I through the second light entrance portion, and is emitted after being refracted again by the second light exit surface of the curved surface on the second protrusion. The lens module II further optimizes the light distribution, thereby achieving precise control of high and low beams and efficient lighting. The vehicle headlight lens module of the utility model has a compact structure, can effectively improve the utilization rate of light energy, and avoid light loss. At the same time, through the rational layout of the reflective surface and the light exit surface design, efficient utilization and uniform distribution of light are achieved, thereby improving the clarity and uniformity of lighting, and effectively reducing glare, thereby improving driving safety and comfort.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A vehicle headlight lens module, characterized in that: include: a light source module, comprising at least one low-beam light source and at least one high-beam light source; Lens module I, wherein a first light entrance portion facing the low-beam light source and a second light entrance portion facing the high-beam light source are provided on a first side of the lens module I, and a first protrusion corresponding to the first light entrance portion and a second protrusion corresponding to the second light entrance portion are provided on a second side of the lens module I, wherein an end surface of the first protrusion serves as a first light exit surface, the first light exit surface being a flat surface, and an end surface of the second protrusion serves as a second light exit surface, and the second light exit surface is an outwardly convex arc surface; The lens module II is arranged at the light-emitting end of the lens module I, and has a third light-incident surface facing the lens module I and a third light-emitting surface facing away from the lens module I.

2. The vehicle headlight lens module according to claim 1, wherein: A protrusion height of the first protrusion is greater than a protrusion height of the second protrusion.

3. The vehicle headlight lens module according to claim 1, wherein: An axis direction of the second light emitting surface is parallel to a horizontal plane.

4. The vehicle headlight lens module according to claim 1, wherein: A first end of the second light emitting surface is connected to the first protrusion, and a second end of the second light emitting surface is provided with a rounded corner.

5. The vehicle headlight lens module according to claim 1, wherein: There are two second protrusions symmetrically arranged on both sides of the first protrusion.

6. The vehicle headlight lens module according to claim 1, wherein: A plurality of strip-shaped protrusions are provided on the first light-emitting surface. The cross-section of the strip-shaped protrusions is arc-shaped and the length direction thereof is perpendicular to the length direction of the lens module I.

7. The vehicle headlight lens module according to claim 1, wherein: The third light-emitting surface is an arc-shaped surface, and its axis direction is parallel to the horizontal plane.

8. The vehicle headlight lens module according to claim 1, wherein: The first light entrance portion and the second light entrance portion are circular bosses, the cross-sectional diameter of the circular bosses gradually increases from the light entrance end to the light exit end, the side walls of the circular bosses form reflecting surfaces, and the ends of the circular bosses are provided with recessed holes to form light entrance holes.

9. The vehicle headlight lens module according to claim 1, wherein: The sidewall of the first protrusion is an inclined surface, the cross section of the first protrusion is a rectangle, and the cross section area gradually decreases from the light input end to the light output end.

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