JP7300554B2 - Micro vehicle light module and reflective structure - Google Patents

Description

The present invention relates to the technical field of vehicle lighting, and more particularly to vehicle light modules and reflective structures.

In the technical field of vehicle lights, vehicle light module refers to a device whose final light-emitting element is a lens or a component with corresponding structure, and which is used for low beam or high beam illumination of automobile headlights. In recent years, with the more mature and stable development of the automobile industry, the types of vehicle light modules are becoming more diversified, and more and more requirements are being put forward in terms of the overall performance of vehicle light modules. For example, the uniformity of light distribution patterns of low beams or high beams of automobile headlights, the visibility of low beams, heat dissipation performance, brightness of high beams, and the structure, weight and volume of modules.

Taking low-beam lighting as an example, according to legal regulations, the low-beam light distribution pattern formed by the vehicle light module, as shown in FIG. As shown in FIG. 2, the extended region B and the central region A overlap locally so as to widen the irradiation range of the low beam. Accordingly, the vehicle light module has an optical structure for shaping the light distribution pattern of each region. Vehicle light modules in the prior art mainly have the following defects.

(1) The brightness of the central region of the light distribution pattern is low. The reflector of the conventional vehicle light module has only one smooth reflective surface, and the divergence angle of the light reflected by the reflective surface is basically the same, and the final vehicle light module is Since the diffusion angles of the light distribution patterns are also the same, the light rays irradiated to the center region of the light distribution pattern are not sufficiently concentrated, and the brightness of the light distribution pattern in the center region is not sufficiently high. However, in order to improve the driver's visibility of the road surface, the brightness of the center area of the light distribution pattern should be as high as possible within the legally stipulated range, but the reflective surface of the reflector of the conventional vehicle light module does not meet this requirement. unable to meet.

(2) Large volume. Vehicle light modules that use conventional reflecting mirrors as primary optical elements use LED light sources with a luminous flux per unit area of only 300-400 lm/ ^mm2 . To achieve this, it is necessary to install multiple LED light sources. As a result, the light emitting area is increased, and a reflector with a correspondingly large reflecting surface is required. Accordingly, the focal length of the reflector is long, and the size of the lens corresponding to the reflector is also large, usually 50mm in height and 70mm in width. The length increases the volume of the vehicle light module.

(3) the accuracy of the optical system is low; On the other hand, in order to obtain an ideal vehicle light light distribution pattern, it is necessary to ensure the relative positional accuracy between the primary optical element and the lens. Positioned and mounted, the lens is positioned and mounted with the lens holder and then positioned and mounted with the radiator, or positioned and mounted with the radiator via one holder, such positioning and mounting Due to the method, there are multiple assembly errors between the primary optical element and the lens, and the accuracy of the optical system is low because it is difficult to guarantee the manufacturing accuracy and positioning and mounting accuracy. On the other hand, in the conventional vehicle light module, the optical structures for forming the cut-off line, 50L dark area and III area, etc. are all installed in the lens holder, the front end of which is used to mount the lens, Since the rear end is used for fixed connection with the radiator, it is necessary to ensure the relative positional accuracy of the primary optic, the lens holder and the lens in order to obtain a light distribution pattern that meets legal requirements. Light distribution pattern However, since it is more difficult to guarantee the accuracy of the relative positions of the three, it is also more difficult to guarantee the accuracy of the optical system.

(4) The dispersion phenomenon is serious. The thickness of the upper and lower ends of the lens used in the conventional vehicle light module is thin, and the light emitted from the upper and lower ends of the lens is greatly deflected, resulting in serious dispersion phenomenon, which does not meet the legal requirements.

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a vehicle light module with a high precision optical system so as to overcome the above deficiencies of the prior art.

In order to solve the above problems, the present invention employs the following technical solutions.

The present invention provides a vehicle light module, the vehicle light module includes a reflector and a lens, the front end of the reflector is provided with a reflector connecting part, the rear end of the lens is provided with a lens connecting part, The reflecting mirror and the lens are relatively fixed by connecting the reflecting mirror connecting portion to the lens connecting portion.

Preferably, it further includes a circuit board, a positioning hole is provided in the circuit board, and a positioning pin inserted into the positioning hole is provided at the rear end of the reflecting mirror.

Preferably, the reflector includes a first reflective surface, a second reflective surface and a third reflective surface, and the vehicle light module further includes a fourth reflective surface, the first reflective surface distributing light in the central area. The second reflective surface is used to form the light distribution pattern of the extended area, and the third and fourth reflective surfaces together form the light distribution pattern of the III area. It is an integrated structure in which the fourth reflecting surface and the reflecting mirror are integrally provided.

Preferably, the integrated structure further includes a cut-off line structure for forming a cut-off line of the light distribution pattern, and the cut-off line structure and the reflecting mirror are integrally provided.

Preferably, the integrated structure further includes a blocking block for controlling the brightness of the 50L dark region of the light distribution pattern, and the blocking block and the reflecting mirror are integrally provided.

Preferably, the third reflecting surface and the first reflecting surface are positioned on different ellipsoids, and the third reflecting surface and the second reflecting surface are positioned on different ellipsoids.

Preferably, the radius of curvature of the lens is R, the height of the lens is H, and H≤4R/3.

The present invention further provides a vehicle light module, the vehicle light module includes a reflector and a lens, the reflector includes a first reflective surface, a second reflective surface and a third reflective surface, wherein the vehicle light module The module further includes a fourth reflective surface, wherein the first reflective surface is used to form the light distribution pattern in the central area, the second reflective surface is used to form the light distribution pattern in the extended area, and the second reflective surface is used to form the light distribution pattern in the extended area. The 3rd reflecting surface and the 4th reflecting surface are both used to form the light distribution pattern of area III, and the integrated structure is such that the 4th reflecting surface and the reflecting mirror are integrally provided.

Preferably, the integrated structure further includes a cut-off line structure for forming a cut-off line of the light distribution pattern, and the cut-off line structure and the reflecting mirror are integrally provided.

Preferably, the integrated structure further includes a blocking block for controlling the brightness of the 50L dark region of the light distribution pattern, and the blocking block and the reflecting mirror are integrally provided.

Preferably, the third reflecting surface and the first reflecting surface are positioned on different ellipsoids, and the third reflecting surface and the second reflecting surface are positioned on different ellipsoids.

Preferably, the radius of curvature of the lens is R, the height of the lens is H, and H≤4R/3.

The present invention further provides a reflective structure, including a reflector and a cut-off structure, the cut-off structure is used to form the cut-off line of the light distribution pattern, and the cut-off structure and the reflector are integrated. It is an integrated structure.

Preferably, the reflector includes a first reflective surface, a second reflective surface and a third reflective surface, and the vehicle light module further includes a fourth reflective surface, the first reflective surface distributing light in the central area. The second reflective surface is used to form the light distribution pattern of the extended area, and the third and fourth reflective surfaces together form the light distribution pattern of the III area. It is an integrated structure in which the fourth reflecting surface and the reflecting mirror are integrally provided.

Preferably, the third reflecting surface and the first reflecting surface are positioned on different ellipsoids, and the third reflecting surface and the second reflecting surface are positioned on different ellipsoids.

Preferably, the integrated structure further includes a blocking block for controlling the brightness of the 50L dark region of the light distribution pattern, and the blocking block and the reflecting mirror are integrally provided.

The present invention represents a significant advance over the prior art.

In the vehicle light module provided by the present invention, the reflector and the lens are assembled into one integrated structure by connecting the reflector connection part and the lens connection part, and the relative position between the two is directly determined, and the reflector and the lens are connected. Realize direct positioning with the lens. When the reflector and the lens are assembled to the circuit board and the radiator, there is a fixed assembly and positioning relationship between the reflector and the lens. By reducing the number of assembly errors, the positioning accuracy and mounting reliability of the reflecting mirror and lens can be guaranteed, and high accuracy of the optical system can be obtained.

In the vehicle light module further provided by the present invention, the first reflecting surface for forming the light distribution pattern of the central region is expanded by integrating the fourth reflecting surface and the reflecting mirror into an integrated structure. The second reflecting surface for forming the light distribution pattern of the region and the third and fourth reflecting surfaces for forming the light distribution pattern of the region III have a relatively fixed positional relationship, and the reflecting mirror and the lens Since there is no error due to the assembling relationship, if the assembling accuracy of the reflecting mirror and the lens is guaranteed, the accuracy of the optical system can be secured and high accuracy of the optical system can be obtained. .

In the vehicle light module provided by the present invention, the cut-off line structure and the reflector 2 are integrally formed into an integrated structure to reflect light rays to form an illumination light distribution pattern. Since the cut-off line structure for forming the cut-off line of the light distribution pattern has a relatively fixed positional relationship, errors do not occur due to the assembly relationship between the reflecting mirror and the lens or other elements. By ensuring the assembly accuracy of the reflector and the lens or other elements, the accuracy of the optical system can be ensured and high accuracy of the optical system can be obtained.

FIG. 4 is a schematic diagram of a low-beam light distribution pattern; FIG. 4 is a schematic diagram of a central area and an extended area of a low-beam light distribution pattern; 1 is a schematic diagram of an optical assembly of a vehicle light module according to an embodiment of the present invention; FIG. FIG. 3 is a schematic vertical cross-sectional view of the reflector of the vehicle light module according to the embodiment of the present invention; FIG. 4 is a schematic diagram of the optical path of the light beam reflected by the first reflective surface in the vehicle light module according to the embodiment of the present invention; FIG. 4 is a schematic diagram of the optical path of the light beam reflected by the second reflecting surface in the vehicle light module according to the embodiment of the present invention; FIG. 4 is a schematic diagram of light paths of light rays reflected by the third reflecting surface and the fourth reflecting surface in the vehicle light module according to the embodiment of the present invention; 1 is a structural schematic diagram of one perspective of a vehicle light module according to an embodiment of the present invention; FIG. FIG. 4 is another perspective structural schematic diagram of the vehicle light module of the embodiment of the present invention; 1 is a schematic vertical cross-sectional view of a vehicle light module according to an embodiment of the present invention; FIG. 1 is an exploded schematic diagram of a vehicle light module according to an embodiment of the present invention; FIG. FIG. 4 is a schematic diagram of a connection structure with a lens reflecting mirror in the vehicle light module according to the embodiment of the present invention; FIG. 4 is a schematic diagram of a connection structure between a lens, a reflector and a circuit board in the vehicle light module according to the embodiment of the present invention; FIG. 14 is a schematic vertical cross-sectional view of FIG. 13; FIG. 4 is a structural schematic diagram of one perspective when the reflector is used to form a low-beam light distribution pattern in the vehicle light module of the embodiment of the present invention; FIG. 4 is a structural schematic diagram of another perspective when the reflector is used to form a low beam light distribution pattern in the vehicle light module of the embodiment of the present invention;

Embodiments for carrying out the present invention will be described in further detail below with reference to the drawings. These embodiments are merely illustrative of the invention and do not limit the invention.

In describing the present invention, the terms "center", "longitudinal", "horizontal", "top", "bottom", "front", "back", "left", "right" should be explained. , "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are the directions or positional relationships shown based on the drawings, and the present invention is for convenience of explanation and simplification of description only, and does not imply or imply that the device must have a particular orientation, or be configured or operated in a particular orientation. should not be construed as limitations on the invention. Further, the terms "first" and "second" are merely descriptive of purpose and should not be understood to imply or imply relative importance.

In the description of the present invention, it should be explained that, unless expressly defined or limited to the contrary, the terms "mounting", "coupling" and "connecting" are to be understood in their broadest sense, e.g. , a removable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be a direct connection, an indirect connection through an intermediate medium, or internal communication between both elements. Those skilled in the art may understand the specific meaning of the above terms in the present invention according to the specific situation.

In the description of the present invention, the meaning of "plurality" is two or two or more, unless otherwise specified.

As shown in FIGS. 1-16, a first aspect of embodiments of the present invention provides a vehicle light module. The vehicle light module is used to form an illumination light distribution pattern of lights. As shown in FIGS. 1 and 2, according to legal regulations, the low beam light distribution pattern formed by the vehicle light module according to this embodiment includes a central area A, an extended area B, an III area C, and a 50L dark area D. , and a cutoff line E, and the extended region B and the central region A locally overlap so as to widen the irradiation range of the low beam.

10 and 11, the vehicle light module according to this embodiment includes a reflecting mirror 2 and a lens 3, a reflecting mirror connecting portion 21 is provided at the front end of the reflecting mirror 2, and a A lens connecting portion 31 is provided, and the reflecting mirror connecting portion 21 is connected to the lens connecting portion 3, whereby the reflecting mirror 2 and the lens 3 are relatively fixed. As a result, by connecting the reflecting mirror connecting portion 21 and the lens connecting portion 31, the reflecting mirror 2 and the lens 3 are assembled into one integrated structure, the relative positions of the two are directly determined, and the reflecting mirror 2 and the lens 3 are connected. Realize direct positioning between When the reflecting mirror 2 and the lens 3 are assembled to the circuit board 4 and the radiator 5, since there is a fixed assembly/positioning relationship between the reflecting mirror 2 and the lens 3, the circuit board 4 and the radiator 5 are assembled together. Positioning errors do not occur between the can be obtained. It should be explained that one embodiment in the prior art is to integrate the reflector with the lens holder and then directly position it with the lens. is very complicated, and the reflector is an important optical element. The length to the front is long and stretched, and the difficulty of processing is high, making it difficult to guarantee optical accuracy. Compared with the prior art, the reflecting mirror 2 and the lens 3 in this embodiment are directly positioned and connected, the structure is simple, the processing of the reflecting mirror 2 is easy, and the precision of the optical system is high.

The connection method between the reflector connection portion 21 and the lens connection portion 31 may be any one of screw connection, riveting, adhesion, and welding. Preferably, the reflector connection part 21 and the lens connection part 31 are connected by riveting, which has the advantages of convenient operation and accurate positioning.

Specifically, referring to FIGS. 11 and 12, the reflector connection portion 21 is provided with a first connection hole 22, the lens connection portion 31 is provided with a first connection pin 32, and the first connection pin 32 is provided with a It is inserted into the first connection hole 22 . When assembling, the reflector connection part 21 and the lens connection part 31 are butted together, the first connection pin 32 is inserted into the first connection hole 22, and can be riveted to the first connection hole 22, so that the reflection It is used to realize the positioning connection between the mirror connecting portion 21 and the lens connecting portion 31 , that is, to realize the positioning connection between the reflecting mirror 2 and the lens 3 . Preferably, the reflector connection part 21 may be provided with two first connection holes 22 . Accordingly, the lens connecting portion 31 is provided with two first connecting pins 32 that are respectively inserted into the two first connecting holes 22 . One first connection hole 22 of the two first connection holes 22 is a circular hole or a slot hole whose diameter matches the diameter of the corresponding first connection pin 32, and the relative position between the reflector 2 and the lens 3. Used to implement position positioning. Another first connection hole 22 is a circular hole with a diameter larger than that of the corresponding first connection pin 32 and is used to achieve riveting between the reflector connection part 21 and the lens connection part 31 . Preferably, one reflecting mirror connecting portion 21 is provided above and below the front end of the reflecting mirror 2, each reflecting mirror connecting portion 21 is provided with two first connecting holes 22, and two diagonal connecting holes 22 are provided. Preferably, one connection hole 22 is a positioning hole for positioning, one of which is a circular hole and the other is a slot hole to avoid overlapping positioning. Accordingly, one lens connection portion 31 is provided at each of the upper and lower rear ends of the lens 3, and when assembling, the reflecting mirror connection portion 21 positioned above and the lens connection portion 31 positioned above are butted against each other, By abutting the lower reflecting mirror connecting portion 21 and the lower lens connecting portion 31, the reflecting mirror 2 and the lens 3 are connected by the two pairs of connected reflecting mirror connecting portions 21 and lens connecting portions 31. , so as to ensure the accuracy of positioning and soundness of assembly between the reflector 2 and the lens 3.

11, 13 and 14, the vehicle light module according to this embodiment further includes a circuit board 4, the circuit board 4 is provided with a positioning hole 11, and the rear end of the reflector 2 is provided with a positioning pin 23. is provided, and the positioning pin 23 is inserted into the positioning hole 41 . When the reflecting mirror 2 is assembled to the circuit board 4, the positioning pin 23 is inserted into the positioning hole 41 to limit the relative position between the reflecting mirror 2 and the circuit board 4, thereby achieving accurate positioning between the two. can do. As a result, the positioning pin 23 is inserted into the positioning hole 41 and connected, thereby assembling the reflecting mirror 2 and the circuit board 4 integrally, fixing the relative position of both, and directly positioning the reflecting mirror 2 and the circuit board 4. Realize Since the lens 3 and the reflector 2 are assembled into a single integrated structure for direct positioning, the vehicle light module in this embodiment has a high degree of accuracy in positioning the lens 3 and the reflector 2, and the reflector 2 and the circuit. If the accuracy of positioning with the substrate 4 is guaranteed, the accuracy of the optical system can be guaranteed, the error of multiple times of assembly is reduced, and accurate assembly becomes easier. Preferably, the circuit board 4 may be provided with two positioning holes 41 . Accordingly, two positioning pins 23 are provided at the rear end of the reflector 2, and the two positioning pins 23 are respectively inserted into the two positioning holes 41, so that the positioning accuracy of the reflector 2 and the circuit board 4 can be improved. The integrity of the assembly can be increased.

Further, the circuit board 4 is connected to the radiator 5 for positioning. Referring to FIG. 11, the reflector 2, the circuit board 4 and the radiator 5 can be fixedly connected by mounting screws 6 (the figure shows through holes in the circuit board 4 for the mounting screws 6 to pass through). not).

10 and 11, preferably, the vehicle light module according to this embodiment further includes a light blocking shield 7, the light blocking shield 7 is connected to the lens 3, the lens 3 is housed in the light blocking shield 7, Only the light emitting surface 3a is exposed to the outside, and the light shielding shield 7 can prevent light rays from exiting the side surface of the lens 3. - 特許庁The connection method between the light shielding shield 7 and the lens 3 may be any one of screw connection, riveting, adhesion, and welding. Preferably, the shading shield 7 and the lens 3 are connected by riveting, which has the advantages of convenient operation and accurate positioning.

Specifically, referring to FIGS. 10 and 11, the light shielding shield 7 is provided with a second connection hole 71, the lens connection portion 31 of the lens 3 is provided with a second connection pin 33, and the first connection pin 33 is provided. It is inserted into the first connection hole 71 . When the shading shield 7 is fitted onto the lens 3, the second connecting pin 33 can be inserted into the first connecting hole 71 and riveted with the second connecting hole 71, so that the shading shield 7 and the second connecting hole 71 can be riveted together. This is for realizing positioning connection with the lens 3 . Preferably, the light shield 7 may be provided with two second connection holes 71 . Accordingly, the lens connection portion 31 is provided with two second connection pins 33 that are inserted into the two second connection holes 71 respectively. One second connecting hole 71 of the two second connecting holes 71 is a circular hole or a slot hole whose diameter corresponds to the diameter of the corresponding second connecting pin 33 , and the light blocking shield 7 and the lens 3 Used to implement position positioning. Another second connection hole 71 is a circular hole whose diameter is larger than that of the corresponding second connection pin 33 , and is used for riveting the light blocking shield 7 and the lens connection part 3 . Preferably, one lens connection portion 31 is provided above and below the front end of the lens 3 , each reflector connection portion 31 is provided with two second connection pins 33 , and the rear end of the light blocking shield 7 is provided with two second connection pins 33 . , are provided with two second connection holes 71 respectively, and the two diagonal second connection holes 71 are preferably used as positioning holes for positioning. is a circular hole and the other is a slot hole, which can ensure the accuracy of positioning and soundness of assembly between the light shielding shield 7 and the lens 3 .

Referring to FIG. 14 , the vehicle light module according to this embodiment further includes a light source 1 , and the light source 1 is provided on the circuit board 4 . A light beam emitted from a light source 1 is reflected by a reflecting mirror 2, enters a lens 3, is refracted by the lens 3, and exits from a light exit surface 3a of the lens 3 to form an illumination light distribution pattern. In the text, the one closer to the light source 1 and further away from the lens 3 is defined as rear, and the one closer to the lens 3 and further away from the light source 1 is defined as front.

3 and 4, the reflector 2 includes a first reflecting surface 2a, a second reflecting surface 2b, and a third reflecting surface 2c, and the vehicle light module according to this embodiment further includes: It includes a fourth reflecting surface 2d. Among them, the first reflecting surface 2a is used to form the light distribution pattern of the central area A, the second reflecting surface 2b is used to form the light distribution pattern of the extended area B, and the third reflecting surface 2b is used to form the light distribution pattern of the extended area B. Both 2c and the fourth reflecting surface 2d are used to form the light distribution pattern of region IIIC. Specifically, referring to FIG. 5, a first portion of the light beam emitted from the light source 1 is irradiated onto the first reflecting surface 2a, reflected by the first reflecting surface 2a, irradiated onto the lens 3, and then irradiated onto the lens 3. The light is refracted by 3 and emitted from the light emitting surface 3a of the lens 3 to form a light distribution pattern of the central area A. FIG. Referring to FIG. 6, the second portion of the light beam emitted from the light source 1 is irradiated onto the second reflecting surface 2b, reflected by the second reflecting surface 2b, irradiated onto the lens 3, and refracted by the lens 3. The light is emitted from the light emitting surface 3a of the lens 3 and forms a light distribution pattern of the extended area B. FIG. In the same luminous flux, the smaller the diffusion angle of the rays, the more concentrated the rays and the higher the brightness of the formed light distribution pattern. In this embodiment, the divergence angle of the light rays reflected by the first reflecting surface 2a is smaller than the divergence angle of the light rays reflected by the second reflecting surface 2b. As a result, the brightness of the light distribution pattern in the central region A formed by the first reflecting surface 2a can be effectively improved, and the visibility of the road surface for the driver can be improved. Referring to FIG. 7, the third portion of the light beam emitted from the light source 1 is irradiated onto the third reflecting surface 2c, reflected by the third reflecting surface 2c, irradiated onto the fourth reflecting surface 2d, and then irradiated onto the fourth reflecting surface 2d. The light is reflected by the surface 2d to be irradiated onto the lens 3, refracted by the lens 3, and emitted from the light exit surface 3a of the lens 3 to form a light distribution pattern of the III area C. FIG. The fourth reflecting surface 2d may be any one of a flat surface, a concave curved surface, and a convex curved surface, as long as it can form a light distribution pattern of area III C that meets legal requirements. The light beam reflected by the third reflecting surface 2c is first irradiated to the fourth reflecting surface 2d, reflected by the fourth reflecting surface 2d, and irradiated to the lens 3. The first reflecting surface 2a and the second reflecting surface Since the light rays reflected by 2b are directly applied to the lens 3, they are located on different ellipsoids from the third reflecting surface 2c and the first reflecting surface 2a, and the third reflecting surface 2c and the second reflecting surface 2b are located on different ellipsoids. lie on different ellipsoids.

Referring to FIG. 4, in this embodiment, a step may be formed between the first reflecting surface 2a and the second reflecting surface 2b so that the first reflecting surface 2a and the second reflecting surface 2b are connected to each other. Moreover, there may be a step between the first reflecting surface 2a and the second reflecting surface 2b depending on the connecting surface. As a result, the first reflecting surface 2a and the second reflecting surface 2b are not on the same smooth surface, and the first reflecting surface 2a and the second reflecting surface 2b are positioned on different ellipsoidal surfaces. After the light rays are reflected by 2a and the second reflecting surface 2b, a different diffusion angle of the light rays can be formed, and the diffusion angle of the light rays reflected by the first reflecting surface 2a is reflected by the second reflecting surface 2b. It can be realized to be less than the divergence angle of the rays. The first reflecting surface 2a and the second reflecting surface 2b do not have to be connected to each other to form a step. It can also be achieved that the divergence angle of the light rays reflected by the first reflecting surface 2a is smaller than the divergence angle of the light rays reflected by the second reflecting surface 2b. Of course, the curvature of the first reflecting surface 2a and the curvature of the second reflecting surface 2b may be the same. The brightness of the light distribution pattern in the central area A is relatively low.

Referring to FIGS. 13 and 14, it is preferably an integrated structure in which the fourth reflecting surface 2d and the reflecting mirror 2 are integrally provided. Accordingly, the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, and the fourth reflecting surface 2d have a relatively fixed positional relationship, and the assembly relationship between the reflecting mirror 2 and the lens 3 is fixed. Therefore, if the assembly accuracy of the reflecting mirror 2 and the lens 3 is guaranteed, the accuracy of the optical system can be ensured. Preferably, the fourth reflecting surface 2 d may be installed at the reflector connection 21 located below the front end of the reflector 2 .

15 and 16 , the vehicle light module according to this embodiment further includes a cut-off line structure 8 and a blocking block 9 . The cut-off line structure 8 is used to form the cut-off line E of the light distribution pattern. After being blocked by , the light is irradiated to the lens 3, refracted by the lens 3, and then emitted from the light exit surface 3a of the lens 3 to form a light distribution pattern of a central area A having a cutoff line E. After being reflected by the second reflecting surface 2b, the light beam irradiated to the second reflecting surface 2b of the light source 1 is blocked by the cut-off line structure 8, is irradiated to the lens 3, is refracted by the lens 3, and is then reflected by the lens 3. is emitted from the light exit surface 3a, and the light distribution pattern of the expansion area B is formed. The blocking block 9 is used to control the brightness of the 50L dark region D of the light distribution pattern, and can block some light rays before the blocking block 9 is blocked by the cut-off line structure 8, thereby reducing the low beam distribution. By reducing the illuminance of the 50L dark area D of the light pattern to a value that meets legal requirements, the control of the luminance of the 50L dark area D of the light distribution pattern is realized. The blocking block 9 may have a columnar shape or a sloped projection. Conventional blocking blocks often adopt convex points or rectangular blocks, but in the case of convex points, the 50L dark area becomes one dark point, which is inconsistent. In the case of a rectangular block, another inflection point appears near the cutoff line except for the original inflection point. It is likely to be captured and affect the effect of the light distribution pattern. Therefore, the blocking block 9 adopts a columnar or slanted projection to avoid the occurrence of the phenomenon of erroneously capturing the disharmony or the inflection point of the light distribution pattern.

An integrated structure in which the cut-off line structure 8 and the reflecting mirror 2 are integrally provided may be used, or an integrated structure in which the blocking block 9 and the reflecting mirror 2 are also integrally provided may be used. As a result, the cut-off line structure 8, the blocking block 9, and the reflecting mirror 2 have a relatively fixed positional relationship, and no error occurs due to the assembly relationship between the reflecting mirror 2 and the lens 3. Therefore, the reflecting mirror If the assembly accuracy between 2 and lens 3 is guaranteed, the accuracy of the optical system can be ensured. Preferably, the cut-off structure 8 and the blocking block 9 are both integrated structures integrally provided with the reflector 2, and the cut-off structure 8 and the blocking block 9 are both under the front end of the reflector 2. It may be installed at the reflecting mirror connection part 21 located.

Most preferably, the fourth reflecting surface 2d, the cut-off line structure 8, and the cut-off block 9 are all integrated structures provided integrally with the reflecting mirror 2. As shown in FIG. If so, the positional relationship among the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, the fourth reflecting surface 2d, the cut-off line structure 8, and the blocking block 9 is all fixed, and the reflecting mirror The accuracy of the optical system can be ensured by assuring the assembly accuracy of the reflecting mirror 2 and the lens 3 without causing an error due to the assembly relationship between the reflector 2 and the lens 3 .

The vehicle light module according to the present embodiment can realize low beam, and can also realize high beam. When the vehicle light module is used for the main low beam, the shape of the cut-off line structure 8 is the same as the light-dark cut-off line shape of the low beam light distribution pattern, and has steps (see FIG. 16). When the vehicle light module is used for auxiliary low beam, the shape of the cut-off line structure 8 may be a smooth and stepless shape, which is the same shape as the light-dark cut-off line shape of the low beam light distribution pattern. good too. When the vehicle light module is used for high beam, the shape of the cut-off structure 8 may be set by the shape of the lower boundary of the high beam light distribution pattern.

Preferably, the radius of curvature of the lens 3 is R, the height of the lens 3 is H, and satisfies H≦4R/3, and the height H eliminates the upper and lower ends of the conventional lens, and the middle This can be achieved by leaving only the thicker portions. Therefore, by reducing the size of the lens 3 on the premise of ensuring the light effect of the lens 3, the overall volume of the vehicle light module can be greatly reduced, forming a micro vehicle light module, with a corresponding manufacturing cost. also drops significantly. If the size of the optical element of the vehicle light module in the prior art is simply reduced according to the proportion, the reduced vehicle light module will have a non-ideal light distribution pattern effect, a poor lighting effect, and a poor lighting effect for the driver. It has the drawback of not providing a good lighting effect. In this embodiment, instead of simply reducing the size of the lens 3 according to the ratio, the upper and lower ends of the conventional lens are removed, and the vertical height of the lens 3 is reduced with the same curvature. Thus, the optical effect of the lens 3 is ensured and the size of the lens 3 is reduced. In addition, since the lens 3 in this embodiment has a large thickness in the remaining intermediate portion, it is possible to weaken the severe dispersion caused by the lens being too thin, and effectively improve the dispersion phenomenon. In practical application, the removed dimensions at the upper and lower ends of the conventional lens may be the same, and the heights extending from the center of the lens 3 to the upper and lower ends are both H/2. Of course, the removed dimensions at the top and bottom ends of a conventional lens may also be different. The positive projection of the lens 3 in this example is a horizontal rectangle, since the lens can be long laterally and does not affect the dispersion.

In the vehicle light module according to this embodiment, the light source 1 may employ an LED light source. However, in consideration of reducing the volume of the vehicle light module, preferably the light source 1 is a laser light source. In the vehicle light module according to the present embodiment, the light source 1 adopts a laser light source, which, combined with the above optical assembly structure, can greatly reduce the volume of the vehicle light module. The target luminous flux per unit area of the laser light source can reach about 1200lm/ ^mm2 , and a single laser light source can reach the brightness of the light distribution pattern required by law, and the light emitting area is small. . Thereby, the size of the reflecting mirror 2 can also be considerably reduced. Correspondingly, the size of the lens 3 can also be considerably reduced. The focal length of the reflector 2 in this embodiment can be between 10 mm and 20 mm, preferably 10 mm. In contrast, the focal length of the reflector in the prior art can only be 30 mm to 40 mm. The lens 3 in this embodiment can have a vertical height H of 5 mm to 15 mm, preferably 10 mm, and a width of 15 mm to 35 mm, preferably 30 mm. In order to allow as much of the light rays reflected by reflector 2 to enter lens 3 as possible, the focal length of lens 3 is reduced accordingly. In this embodiment, the focal length of lens 3 can be between 10 mm and 20 mm. In contrast, the focal length of the lens in the prior art can only be 30 mm to 40 mm. Therefore, in this embodiment, the longitudinal length of the entire vehicle light module is greatly reduced, and the length can be about 80 mm. In contrast, the length of vehicle light modules in the prior art is approximately 130 mm to 150 mm. Likewise, the overall width and height of the vehicle light module is also reduced, and may be about 35 mm wide and about 40 mm high. In contrast, the width of the vehicle light module in the prior art is about 90mm-100mm and the height is about 90mm-100mm. As a result, compared with the prior art, the overall volume of the vehicle light module in this embodiment is greatly reduced, and the vehicle light module belongs to the small-sized vehicle light module. Therefore, the vehicle light module according to the present embodiment employs a laser light source with a small light emitting area and high light emitting intensity per unit area, so that the size and focal length of the reflector 2 and the lens 3 are greatly increased. Due to the reduced size and compact and delicate structure, the volume of the entire vehicle light module is greatly reduced, and the corresponding manufacturing cost is also greatly reduced. It also has good commercial value prospects, the micro vehicle light module is very compatible with the development trend of automobile styling, it is possible to eliminate the traditional headlight, and the vehicle light module can be placed in an inconspicuous position, such as When used for vehicle lighting by arranging it in a position such as a bumper or a grille, it helps to further improve the appearance of the vehicle.

As shown in FIGS. 1-16, a second aspect of embodiments of the present invention further provides a vehicle light module. The vehicle light module is used to form an illumination light distribution pattern of lights. As shown in FIGS. 1 and 2, according to legal regulations, the low beam light distribution pattern formed by the vehicle light module according to this embodiment includes a central area A, an extended area B, an III area C, and a 50L dark area D. , and a cutoff line E, and the extended region B and the central region A locally overlap so as to widen the irradiation range of the low beam.

3 and 4, the vehicle light module in this embodiment includes a reflector 2 and a lens 3, and may further include a light source 1, and the light emitted from the light source 1 is reflected by the reflector 2. The light is then incident on the lens 3, refracted by the lens 3, and emitted from the light exit surface 3a of the lens 3 to form an illumination light distribution pattern. In the text, the one closer to the light source 1 and further away from the lens 3 is defined as rear, and the one closer to the lens 3 and further away from the light source 1 is defined as front. The reflector 2 includes a first reflecting surface 2a, a second reflecting surface 2b, and a third reflecting surface 2c, and the vehicle light module according to this embodiment further includes a fourth reflecting surface 2d. Here, the first reflecting surface 2a is used to form the light distribution pattern of the central area A, the second reflecting surface 2b is used to form the light distribution pattern of the extended area B, and the third reflecting surface 2b is used to form the light distribution pattern of the extension area B. Both the surface 2c and the fourth reflecting surface 2d are used to form the light distribution pattern of the III area C. As shown in FIG. Specifically, referring to FIG. 5, a first portion of the light beam emitted from the light source 1 is irradiated onto the first reflecting surface 2a, reflected by the first reflecting surface 2a, irradiated onto the lens 3, and then irradiated onto the lens 3. The light is refracted by 3 and emitted from the light emitting surface 3a of the lens 3 to form a light distribution pattern of the central area A. FIG. Referring to FIG. 6, the second portion of the light beam emitted from the light source 1 is irradiated onto the second reflecting surface 2b, reflected by the second reflecting surface 2b, irradiated onto the lens 3, and refracted by the lens 3. The light is emitted from the light emitting surface 3a of the lens 3 and forms a light distribution pattern of the extended area B. FIG. Referring to FIG. 7, the third portion of the light beam emitted from the light source 1 is irradiated onto the third reflecting surface 2c, reflected by the third reflecting surface 2c, irradiated onto the fourth reflecting surface 2d, and then irradiated onto the fourth reflecting surface 2d. The light is reflected by the surface 2d to be irradiated onto the lens 3, refracted by the lens 3, and emitted from the light exit surface 3a of the lens 3 to form a light distribution pattern of the III area C. FIG. 13 and 14, in this embodiment, the fourth reflecting surface 2d and the reflecting mirror 2 are integrally provided to form an integrated structure. Accordingly, the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, and the fourth reflecting surface 2d have a relatively fixed positional relationship, and the assembly relationship between the reflecting mirror 2 and the lens 3 is fixed. Therefore, if the assembly accuracy of the reflecting mirror 2 and the lens 3 is guaranteed, the accuracy of the optical system can be ensured and high accuracy of the optical system can be obtained.

In the same luminous flux, the smaller the diffusion angle of the rays, the more concentrated the rays and the higher the brightness of the formed light distribution pattern. In this embodiment, preferably, the divergence angle of the light rays reflected by the first reflecting surface 2a is smaller than the divergence angle of the light rays reflected by the second reflecting surface 2b. As a result, the brightness of the light distribution pattern in the central region A formed by the first reflecting surface 2a can be effectively improved, and the visibility of the road surface for the driver can be improved.

Referring to FIG. 4, in this embodiment, a step may be formed between the first reflecting surface 2a and the second reflecting surface 2b so that the first reflecting surface 2a and the second reflecting surface 2b are connected to each other. Moreover, there may be a step between the first reflecting surface 2a and the second reflecting surface 2b depending on the connecting surface. As a result, the first reflecting surface 2a and the second reflecting surface 2b are not on the same smooth surface, and the first reflecting surface 2a and the second reflecting surface 2b are positioned on different ellipsoidal surfaces. After the light rays are reflected by 2a and the second reflecting surface 2b, a different diffusion angle of the light rays can be formed, and the diffusion angle of the light rays reflected by the first reflecting surface 2a is reflected by the second reflecting surface 2b. It can be realized to be less than the divergence angle of the rays. The first reflecting surface 2a and the second reflecting surface 2b do not have to be connected to each other to form a step. It can also be achieved that the divergence angle of the light rays reflected by the first reflecting surface 2a is smaller than the divergence angle of the light rays reflected by the second reflecting surface 2b. Of course, the curvature of the first reflecting surface 2a and the curvature of the second reflecting surface 2b may be the same. The brightness of the light distribution pattern in the central area A is relatively low.

The fourth reflecting surface 2d may be any one of a flat surface, a concave curved surface, and a convex curved surface, as long as it can form a light distribution pattern of area III C that meets legal requirements. The light beam reflected by the third reflecting surface 2c first irradiates the fourth reflecting surface 2d, is reflected by the fourth reflecting surface 2d, and irradiates the lens 3, while the first reflecting surface 2a and the second reflecting surface Since the light rays reflected by 2b are directly applied to the lens 3, they are located on different ellipsoids from the third reflecting surface 2c and the first reflecting surface 2a, and the third reflecting surface 2c and the second reflecting surface 2b are located on different ellipsoids. lie on different ellipsoids.

Further, referring to FIGS. 15 and 16, the vehicle light module according to this embodiment further includes a cut-off line structure 8 and a blocking block 9. As shown in FIG. The cut-off line structure 8 is used to form the cut-off line E of the light distribution pattern. After being blocked by , the light is irradiated to the lens 3, refracted by the lens 3, and then emitted from the light exit surface 3a of the lens 3 to form a light distribution pattern of a central area A having a cutoff line E. After being reflected by the second reflecting surface 2b, the light beam irradiated to the second reflecting surface 2b of the light source 1 is blocked by the cut-off line structure 8, is irradiated to the lens 3, is refracted by the lens 3, and is then reflected by the lens 3. is emitted from the light exit surface 3a, and the light distribution pattern of the expansion area B is formed. The blocking block 9 is used to control the brightness of the 50L dark region D of the light distribution pattern, and can block some light rays before the blocking block 9 is blocked by the cut-off line structure 8, thereby reducing the low beam distribution. By reducing the illuminance of the 50L dark area D of the light pattern to a value that meets legal requirements, the control of the luminance of the 50L dark area D of the light distribution pattern is realized. The blocking block 9 may have a columnar shape or a sloped projection. Conventional blocking blocks often adopt convex points or rectangular blocks, but in the case of convex points, the 50L dark area becomes one dark point, which is inconsistent. In the case of a rectangular block, another inflection point appears near the cutoff line except for the original inflection point. It is likely to be captured and affect the effect of the light distribution pattern. Therefore, the blocking block 9 adopts a columnar or slanted projection to avoid the occurrence of the phenomenon of erroneously capturing the disharmony or the inflection point of the light distribution pattern.

An integrated structure in which the cut-off line structure 8 and the reflecting mirror 2 are integrally provided may be used, or an integrated structure in which the blocking block 9 and the reflecting mirror 2 are also integrally provided may be used. As a result, the cut-off line structure 8, the blocking block 9, and the reflecting mirror 2 have a relatively fixed positional relationship, and no error occurs due to the assembly relationship between the reflecting mirror 2 and the lens 3. Therefore, the reflecting mirror If the assembly accuracy between 2 and lens 3 is guaranteed, the accuracy of the optical system can be ensured. Preferably, both the cut-off line structure 8 and the cut-off block 9 are integrated structures provided integrally with the reflector 2 .

Preferably, the fourth reflecting surface 2d, the cut-off line structure 8 and the cut-off block 9 are all integrated structures provided integrally with the reflecting mirror 2. As shown in FIG. As a result, the positional relationship among the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, the fourth reflecting surface 2d, the cut-off line structure 8, and the blocking block 9 is fixed. The accuracy of the optical system can be ensured by assuring the assembly accuracy of the reflecting mirror 2 and the lens 3 without causing an error due to the assembly relationship with the lens 3 .

The vehicle light module according to the present embodiment can realize low beam, and can also realize high beam. When the vehicle light module is used for the main low beam, the shape of the cut-off line structure 8 is the same as the light-dark cut-off line shape of the low beam light distribution pattern, and has steps (see FIG. 16). When the vehicle light module is used for auxiliary low beam, the shape of the cut-off line structure 8 may be a smooth and stepless shape, which is the same shape as the light-dark cut-off line shape of the low beam light distribution pattern. good too. When the vehicle light module is used for high beam, the shape of the cut-off structure 8 may be set by the shape of the lower boundary of the high beam light distribution pattern.

Preferably, the radius of curvature of the lens 3 is R, the height of the lens 3 is H, and satisfies H≦4R/3, and the height H eliminates the upper and lower ends of the conventional lens, and the middle This can be achieved by leaving only the thicker portions. Therefore, by reducing the size of the lens 3 on the premise of ensuring the light effect of the lens 3, the overall volume of the vehicle light module can be greatly reduced, forming a micro vehicle light module, with a corresponding manufacturing cost. also drops significantly. If the size of the optical element of the vehicle light module in the prior art is simply reduced according to the proportion, the reduced vehicle light module will have a non-ideal light distribution pattern effect, a poor lighting effect, and a poor lighting effect for the driver. It has the drawback of not providing a good lighting effect. In this embodiment, instead of simply reducing the size of the lens 3 according to the ratio, the upper and lower ends of the conventional lens are removed, and the vertical height of the lens 3 is reduced with the same curvature. Thus, the optical effect of the lens 3 is ensured and the size of the lens 3 is reduced. In addition, since the lens 3 in this embodiment has a large thickness in the remaining intermediate portion, it is possible to weaken the severe dispersion caused by the lens being too thin, and effectively improve the dispersion phenomenon. In practical application, the removed dimensions at the upper and lower ends of the conventional lens may be the same, and the heights extending from the center of the lens 3 to the upper and lower ends are both H/2. Of course, the removed dimensions at the top and bottom ends of a conventional lens may also be different. The positive projection of the lens 3 in this example is a horizontal rectangle, since the lens can be long laterally and does not affect the dispersion.

Further, a reflecting mirror connecting portion 21 is provided at the front end of the reflecting mirror 2, and a lens connecting portion 31 is provided at the rear end of the lens 3. By connecting the reflecting mirror connecting portion 21 to the lens connecting portion 3, the reflecting mirror 2 and the lens 3 are relatively fixed. As a result, by connecting the reflecting mirror connecting portion 21 and the lens connecting portion 31, the reflecting mirror 2 and the lens 3 are assembled into one integrated structure, the relative positions of the two are directly fixed, and the reflecting mirror 2 and the lens 3 are connected. Realize direct positioning between When the reflecting mirror 2 and the lens 3 are assembled to the circuit board 4 and the radiator 5, since there is a fixed assembly/positioning relationship between the reflecting mirror 2 and the lens 3, the circuit board 4 and the radiator 5 are assembled together. Positioning errors do not occur between the can be obtained. It should be explained that one embodiment in the prior art is to integrate the reflector with the lens holder and then directly position it with the lens. is very complicated, and the reflector is an important optical element. The length to the front is long and stretched, and the difficulty of processing is high, making it difficult to guarantee optical accuracy. Compared with the prior art, the reflecting mirror 2 and the lens 3 in this embodiment are directly positioned and connected, the structure is simple, the processing of the reflecting mirror 2 is easy, and the precision of the optical system is high.

Preferably, the fourth reflecting surface 2 d , the cut-off structure 8 and the blocking block 9 are all installed at the reflector connecting part 21 located below the front end of the reflector 2 .

The connection method between the reflector connection portion 21 and the lens connection portion 31 may be any one of screw connection, riveting, adhesion, and welding. Preferably, the reflector connection part 21 and the lens connection part 31 are connected by riveting, which has the advantages of convenient operation and accurate positioning.

Specifically, referring to FIGS. 11 and 12, the reflector connection portion 21 is provided with a first connection hole 22, the lens connection portion 31 is provided with a first connection pin 32, and the first connection pin 32 is provided with a It is inserted into the first connection hole 22 . When assembling, the reflector connection part 21 and the lens connection part 31 can be butted together, the first connection pin 32 can be inserted into the first connection hole 22 and riveted with the first connection hole 22, and the reflection This is to realize the positioning connection between the mirror connecting portion 21 and the lens connecting portion 31, that is, the positioning connection between the reflecting mirror 2 and the lens 3 is realized. Preferably, the reflector connection part 21 may be provided with two first connection holes 22 . Accordingly, the lens connecting portion 31 is provided with two first connecting pins 32 that are respectively inserted into the two first connecting holes 22 . One first connection hole 22 of the two first connection holes 22 is a circular hole or a slot hole whose diameter corresponds to the diameter of the corresponding first connection pin 32, and the relative position between the reflector 2 and the lens 3. Used to implement position positioning. Another first connection hole 22 is a circular hole with a diameter larger than that of the corresponding first connection pin 32 and is used to achieve riveting between the reflector connection part 21 and the lens connection part 31 . Preferably, one reflecting mirror connecting portion 21 is provided above and below the front end of the reflecting mirror 2, each reflecting mirror connecting portion 21 is provided with two first connecting holes 22, and two diagonal connecting holes 22 are provided. Preferably, one connection hole 22 is a positioning hole for positioning, one of which is a circular hole and the other is a slot hole to avoid duplicate positioning. Accordingly, one lens connecting portion 31 is provided above and below the rear end of the lens 3 respectively. When assembling, the reflecting mirror connection part 21 positioned above and the lens connection part 31 positioned above are butted, and the reflection mirror connection part 21 positioned below and the lens connection part 31 positioned below are butted. Therefore, the relative positions of the reflecting mirror 2 and the lens 3 are both limited by the two pairs of connected reflecting mirror connecting portion 21 and lens connecting portion 31, so that the positioning accuracy and assembly of the reflecting mirror 2 and the lens 3 are improved. Soundness can be guaranteed.

11, 13 and 14 , the vehicle light module according to this embodiment further includes a circuit board 4 , and the light source 1 is provided on the circuit board 4 . A positioning hole 41 is provided in the circuit board 4 , a positioning pin 23 is provided at the rear end of the reflecting mirror 2 , and the positioning pin 23 is inserted into the positioning hole 41 . When the reflecting mirror 2 is assembled to the circuit board 4, the positioning pin 23 is inserted into the positioning hole 41 to limit the relative position between the reflecting mirror 2 and the circuit board 4, thereby achieving accurate positioning between the two. can do. As a result, the positioning pin 23 is inserted into the positioning hole 41 and connected, and the reflecting mirror 2 and the circuit board 4 are assembled integrally to determine the relative position of the two, thereby realizing the direct positioning of the reflecting mirror 2 and the circuit board 4. do. Since the lens 3 and the reflector 2 are assembled into a single integrated structure for direct positioning, the vehicle light module in this embodiment has a high degree of accuracy in positioning the lens 3 and the reflector 2, and the reflector 2 and the circuit. If the accuracy of positioning with the substrate 4 is guaranteed, the accuracy of the optical system can be guaranteed, the error of multiple times of assembly is reduced, and accurate assembly becomes easier. Preferably, the circuit board 4 may be provided with two positioning holes 41 . Accordingly, two positioning pins 23 are provided at the rear end of the reflector 2, and the two positioning pins 23 are respectively inserted into the two positioning holes 41, so that the positioning accuracy of the reflector 2 and the circuit board 4 can be improved. The integrity of the assembly can be increased.

Further, the circuit board 4 is connected to the radiator 5 for positioning. Referring to FIG. 11, the reflector 2, the circuit board 4 and the radiator 5 can be fixedly connected by mounting screws 6 (the figure shows through holes in the circuit board 4 for the mounting screws 6 to pass through). not).

10 and 11, preferably, the vehicle light module according to this embodiment further includes a light blocking shield 7, the light blocking shield 7 is connected to the lens 3, the lens 3 is housed in the light blocking shield 7, Only the light emitting surface 3a is exposed to the outside, and the light shielding shield 7 can prevent light rays from exiting the side surface of the lens 3. - 特許庁The connection method between the light shielding shield 7 and the lens 3 may be any one of screw connection, riveting, adhesion, and welding. Preferably, the shading shield 7 and the lens 3 are connected by riveting, which has the advantages of convenient operation and accurate positioning.

Specifically, referring to FIGS. 10 and 11, the light shielding shield 7 is provided with a second connection hole 71, the lens connection portion 31 of the lens 3 is provided with a second connection pin 33, and the first connection pin 33 is provided. It is inserted into the first connection hole 71 . When the shading shield 7 is fitted onto the lens 3, the second connecting pin 33 can be inserted into the first connecting hole 71 and riveted with the second connecting hole 71, so that the shading shield 7 and the second connecting hole 71 can be riveted together. This is for realizing positioning connection with the lens 3 . Preferably, the light shield 7 may be provided with two second connection holes 71 . Accordingly, the lens connection portion 31 is provided with two second connection pins 33 that are inserted into the two second connection holes 71 respectively. One second connecting hole 71 of the two second connecting holes 71 is a circular hole or a slot hole whose diameter corresponds to the diameter of the corresponding second connecting pin 33 , and the light blocking shield 7 and the lens 3 Used to implement position positioning. Another second connection hole 71 is a circular hole whose diameter is larger than that of the corresponding second connection pin 33 , and is used for riveting the light blocking shield 7 and the lens connection part 3 . Preferably, one lens connection portion 31 is provided above and below the front end of the lens 3 , each reflector connection portion 31 is provided with two second connection pins 33 , and the rear end of the light blocking shield 7 is provided with two second connection pins 33 . , are provided with two second connection holes 71 respectively, and the two diagonal second connection holes 71 are preferably used as positioning holes for positioning. is a circular hole and the other is a slot hole, which can ensure the accuracy of positioning and soundness of assembly between the light shielding shield 7 and the lens 3 .

In the vehicle light module according to this embodiment, the light source 1 may employ an LED light source. However, in consideration of reducing the volume of the vehicle light module, preferably the light source 1 is a laser light source. In the vehicle light module according to the present embodiment, the light source 1 adopts a laser light source, which, combined with the above optical assembly structure, can greatly reduce the volume of the vehicle light module. The target luminous flux per unit area of the laser light source can reach about 1200lm/ ^mm2 , and a single laser light source can reach the brightness of the light distribution pattern required by law, and the light emitting area is small. . Thereby, the size of the reflecting mirror 2 can also be considerably reduced. Correspondingly, the size of the lens 3 can also be considerably reduced. The focal length of the reflector 2 in this embodiment can be between 10 mm and 20 mm, preferably 10 mm. In contrast, the focal length of the reflector in the prior art can only be 30 mm to 40 mm. The lens 3 in this embodiment can have a vertical height H of 5 mm to 15 mm, preferably 10 mm, and a width of 15 mm to 35 mm, preferably 30 mm. In order to allow as much of the light rays reflected by the reflector 2 to enter the lens 3 as possible, the focal length of the lens 3 is also reduced accordingly. In this embodiment, the focal length of lens 3 can be between 10 mm and 20 mm. In contrast, the focal length of the lens in the prior art can only be 30 mm to 40 mm. Thus, in this embodiment, the longitudinal length of the entire vehicle light module is significantly reduced, and the length can be about 80 mm. In contrast, the length of vehicle light modules in the prior art is about 130 mm to 150 mm. Likewise, the overall width and height of the vehicle light module is also reduced, and may be about 35 mm wide and about 40 mm high. In contrast, the width of the vehicle light module in the prior art is about 90mm-100mm and the height is about 90mm-100mm. As a result, compared with the prior art, the overall volume of the vehicle light module in this embodiment is greatly reduced, and the vehicle light module belongs to the small-sized vehicle light module. Therefore, the vehicle light module according to the present embodiment employs a laser light source with a small light emitting area and high light emitting intensity per unit area, so that the size and focal length of the reflector 2 and the lens 3 are greatly increased. Due to the reduced size and compact and delicate structure, the volume of the entire vehicle light module is greatly reduced, and the corresponding manufacturing cost is also greatly reduced. It also has good commercial value prospects, the micro vehicle light module is very compatible with the development trend of automobile styling, it is possible to eliminate the traditional headlight, and the vehicle light module can be placed in an inconspicuous position, such as When used for vehicle lighting by arranging it in a position such as a bumper or a grille, it helps to further improve the appearance of the vehicle.

As shown in FIGS. 1 to 16, the third aspect of the embodiments of the present invention further provides a reflective structure, which reflects the light emitted from the light source 1 to the lens 3, thereby causing the lens After being refracted by 3, the light is emitted from the light emitting surface 3a of the lens 3 and used to form an illumination light distribution pattern. In the text, the one closer to the light source 1 and further away from the lens 3 is defined as rear, and the one closer to the lens 3 and further away from the light source 1 is defined as front. As shown in FIGS. 1 and 2, by law, the low beam light distribution pattern includes a central area A, an extended area B, an III area C, a 50L dark area D, and a cutoff line E. The extension region B and the central region A locally overlap so as to expand the irradiation range.

3, 4, 15 and 16, the reflecting structure of this embodiment includes a reflecting mirror 2 and a cut-off line structure 8. The reflecting mirror 2 directs the light emitted from the light source 1 to the lens 3. The cut-off line structure 8 is used to form the cut-off line E of the light distribution pattern. After being refracted by the lens 3, the light is emitted from the light emitting surface 3a of the lens 3 to form an illumination light distribution pattern having a cutoff line E. In this embodiment, the integrated structure in which the cut-off line structure 8 and the reflecting mirror 2 are integrally provided allows the reflecting mirror 2 for reflecting the light rays to form the illumination light distribution pattern and the light distribution pattern. Since the positional relationship between the cutoff line structure 8 for forming the cutoff line and the cutoff line structure 8 is relatively fixed, no error occurs due to the assembly relationship between the reflecting mirror 2 and the lens 3 or other elements. If the assembly accuracy of the mirror 2 and the lens 3 or other elements is guaranteed, the accuracy of the optical system can be ensured and high accuracy of the optical system can be obtained.

3 and 4, the reflecting mirror 2 includes a first reflecting surface 2a, a second reflecting surface 2b, and a third reflecting surface 2c. Includes face 2d. Here, the first reflecting surface 2a is used to form the light distribution pattern of the central area A, the second reflecting surface 2b is used to form the light distribution pattern of the extended area B, and the third reflecting surface 2b is used to form the light distribution pattern of the extension area B. Both the surface 2c and the fourth reflecting surface 2d are used to form the light distribution pattern of the III area C. As shown in FIG. Specifically, referring to FIG. 5, a first portion of the light beam emitted from the light source 1 is irradiated onto the first reflecting surface 2a, reflected by the first reflecting surface 2a, irradiated onto the lens 3, and then irradiated onto the lens 3. The light is refracted by 3 and emitted from the light emitting surface 3a of the lens 3 to form a light distribution pattern of the central area A. FIG. Referring to FIG. 6, the second portion of the light beam emitted from the light source 1 is irradiated onto the second reflecting surface 2b, reflected by the second reflecting surface 2b, irradiated onto the lens 3, and refracted by the lens 3. The light is emitted from the light emitting surface 3a of the lens 3 and forms a light distribution pattern of the extended area B. FIG. In this embodiment, the light beam irradiated to the first reflecting surface 2a of the light source 1 is reflected by the first reflecting surface 2a, is blocked by the cut-off structure 8, is irradiated to the lens 3, and is refracted by the lens 3. is emitted from the light emitting surface 3a of the lens 3, and forms a light distribution pattern of the central area A having the cutoff line E. A light beam irradiated to the second reflecting surface 2b of the light source 1 is reflected by the second reflecting surface 2b, is blocked by the cut-off line structure 8, is irradiated to the lens 3, is refracted by the lens 3, and exits from the lens 3. The light is emitted from the surface 3a to form a light distribution pattern of the extended area B. FIG. Referring to FIG. 7, the third portion of the light beam emitted from the light source 1 is irradiated onto the third reflecting surface 2c, reflected by the third reflecting surface 2c, irradiated onto the fourth reflecting surface 2d, and then irradiated onto the fourth reflecting surface 2d. The light is reflected by the surface 2d to be irradiated onto the lens 3, refracted by the lens 3, and emitted from the light exit surface 3a of the lens 3 to form a light distribution pattern of the III area C. FIG. 13 and 14, in this embodiment, the fourth reflecting surface 2d and the reflecting mirror 2 are integrally provided to form an integrated structure. Accordingly, the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, and the fourth reflecting surface 2d have a relatively fixed positional relationship, and the assembly relationship between the reflecting mirror 2 and the lens 3 is fixed. Therefore, if the assembly accuracy of the reflecting mirror 2 and the lens 3 is guaranteed, the accuracy of the optical system can be ensured and high accuracy of the optical system can be obtained.

In the same luminous flux, the smaller the diffusion angle of the rays, the more concentrated the rays and the higher the brightness of the formed light distribution pattern. In this embodiment, preferably, the divergence angle of the light rays reflected by the first reflecting surface 2a is smaller than the divergence angle of the light rays reflected by the second reflecting surface 2b. As a result, the brightness of the light distribution pattern in the central region A formed by the first reflecting surface 2a can be effectively improved, and the visibility of the road surface for the driver can be improved.

Referring to FIG. 4, in this embodiment, a step may be formed between the first reflecting surface 2a and the second reflecting surface 2b so that the first reflecting surface 2a and the second reflecting surface 2b are connected to each other. Moreover, there may be a step between the first reflecting surface 2a and the second reflecting surface 2b depending on the connecting surface. As a result, the first reflecting surface 2a and the second reflecting surface 2b are not on the same smooth surface, and the first reflecting surface 2a and the second reflecting surface 2b are positioned on different ellipsoidal surfaces. After the light rays are reflected by 2a and the second reflecting surface 2b, a different diffusion angle of the light rays can be formed, and the diffusion angle of the light rays reflected by the first reflecting surface 2a is reflected by the second reflecting surface 2b. It can be realized to be less than the divergence angle of the rays. The first reflecting surface 2a and the second reflecting surface 2b do not have to be connected to each other to form a step. It can also be achieved that the divergence angle of the light rays reflected by the first reflecting surface 2a is smaller than the divergence angle of the light rays reflected by the second reflecting surface 2b. Of course, the curvature of the first reflecting surface 2a and the curvature of the second reflecting surface 2b may be the same. The brightness of the light distribution pattern in the central area A is relatively low.

The fourth reflecting surface 2d may be any one of a flat surface, a concave curved surface, and a convex curved surface, as long as it can form a light distribution pattern of area III C that meets legal requirements. The light beam reflected by the third reflecting surface 2c first irradiates the fourth reflecting surface 2d, is reflected by the fourth reflecting surface 2d, and irradiates the lens 3, while the first reflecting surface 2a and the second reflecting surface Since the light rays reflected by 2b are directly applied to the lens 3, they are located on different ellipsoids from the third reflecting surface 2c and the first reflecting surface 2a, and the third reflecting surface 2c and the second reflecting surface 2b are located on different ellipsoids. lie on different ellipsoids.

Further, referring to FIGS. 15 and 16, the vehicle light module of this embodiment further includes a blocking block 9, which is used to control the brightness of the 50L dark region D of the light distribution pattern, The blocking block 9 can block a part of the light before it is blocked by the cutoff line structure 8, and the illuminance of the 50L dark area D of the low beam light distribution pattern is reduced to a value that meets the legal requirements. , to realize the control of the brightness of the 50L dark region D of the light distribution pattern. The blocking block 9 may have a columnar shape or a sloped projection. Conventional blocking blocks often adopt convex points or rectangular blocks, but in the case of convex points, the 50L dark area becomes one dark point, which is inconsistent. In the case of a rectangular block, another inflection point appears near the cutoff line except for the original inflection point. It is likely to be captured and affect the effect of the light distribution pattern. Therefore, the blocking block 9 adopts a columnar or slanted projection to avoid the occurrence of the phenomenon of erroneously capturing the disharmony or the inflection point of the light distribution pattern.

An integrated structure in which the shielding block 9 and the reflecting mirror 2 are integrally provided may be used. As a result, the cut-off line structure 8, the blocking block 9, and the reflecting mirror 2 have a relatively fixed positional relationship, and no error occurs due to the assembly relationship between the reflecting mirror 2 and the lens 3. Therefore, the reflecting mirror If the assembly accuracy between 2 and lens 3 is guaranteed, the accuracy of the optical system can be ensured.

Most preferably, the fourth reflecting surface 2d, the cut-off line structure 8, and the cut-off block 9 are all integrated structures provided integrally with the reflecting mirror 2. As shown in FIG. If so, the positional relationship among the first reflecting surface 2a, the second reflecting surface 2b, the third reflecting surface 2c, the fourth reflecting surface 2d, the cut-off line structure 8, and the blocking block 9 is all fixed, and the reflecting mirror The accuracy of the optical system can be ensured by assuring the assembly accuracy of the reflecting mirror 2 and the lens 3 without causing an error due to the assembly relationship between the reflector 2 and the lens 3 .

The reflective structure according to this embodiment can achieve low beams and also high beams. When the reflecting structure is used for the main low beam, the shape of the cut-off line structure 8 is the same as the light-dark cut-off line shape of the low beam light distribution pattern, and has steps (see FIG. 16). When the reflective structure is used for an auxiliary low beam, the shape of the cut-off line structure 8 may be a smooth stepless shape, or the same shape as the light-dark cut-off line shape of the low beam light distribution pattern. good. When the reflective structure is used for high beam, the shape of the cutoff structure 8 may be set by the shape of the lower boundary of the high beam light distribution pattern.

The above are only preferred embodiments of the present invention, and it should be pointed out that those skilled in the art can make some improvements or substitutions on the premise that they do not depart from the technical principles of the present invention. Any replacement should be considered within the protection scope of the present invention.

A central region, B extended region, C III region, D 50L dark region, E cutoff line, 1 light source, 2 reflecting mirror, 2a first reflecting surface, 2b second reflecting surface, 2c third reflecting surface, 2d fourth reflection Surface 3 Lens 3a Light emitting surface of lens 4 Circuit board 5 Radiator 6 Mounting screw 7 Light shielding shield 8 Cut-off line structure 9 Blocking block 21 Reflector connection part 22 First connection hole 23 Positioning pin , 31 lens connection portion, 32 first connection pin, 33 second connection pin, 41 positioning hole, 71 second connection hole

Claims (6)

A vehicle light module comprising a reflector (2) and a lens (3), wherein a reflector connector (21) is provided at the front end of the reflector (2) and a lens at the rear end of the lens (3) A connecting portion (31) is provided, and the reflecting mirror (2) and the lens (3) are relatively fixed by connecting the reflecting mirror connecting portion (21) to the lens connecting portion (31). ,
Further comprising a circuit board (4), the circuit board (4) is provided with a positioning hole (41), and a positioning pin (23) inserted into the positioning hole (41) is positioned at the rear end of the reflecting mirror (2). A vehicle light module, characterized in that it is provided in a The reflector (2) includes a first reflecting surface (2a), a second reflecting surface (2b) and a third reflecting surface (2c), and the vehicle light module includes a fourth reflecting surface (2d). Further comprising, said first reflective surface (2a) is used to form a light distribution pattern in a central area (A), and said second reflective surface (2b) forms a light distribution pattern in an extended area (B). The third reflecting surface (2c) and the fourth reflecting surface (2d) are both used to form a light distribution pattern in the region III (C), and the fourth reflecting surface (2d) and Vehicle light module according to claim 1, characterized in that said reflector (2) is an integral structure. The integrated structure further includes a cut-off line structure (8) for forming a cut-off line (E) of the light distribution pattern, wherein the cut-off line structure (8) and the reflecting mirror (2) are integrally provided. Vehicle light module according to claim 1 or 2 , characterized in that: An integral structure in which the blocking block (9) and the reflecting mirror (2) are integrally provided, further including a blocking block (9) for controlling the brightness of the 50L dark region (D) of the light distribution pattern. 3. Vehicle light module according to claim 1 or 2 , characterized in that a The third reflecting surface (2c) and the first reflecting surface (2a) are positioned on different ellipsoids, and the third reflecting surface (2c) and the second reflecting surface (2b) are positioned on different ellipsoids. 3. The vehicle light module of claim 2 , wherein: Vehicle light module according to claim 1, characterized in that the radius of curvature of the lens (3) is R, the height of the lens (3) is H, and H≤4R/3.

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