Vehicle lamp module, vehicle headlamp and vehicle

Abstract

The present invention relates to a vehicle lighting device, and discloses a vehicle lamp module, comprising a light source (1), a light focusing portion (2) and a light emitting element arranged in sequence along a light emitting direction, wherein the light emitting element is an aspheric lens (3), the light focusing portion (2) comprises at least one light focusing element (21), the light source (1) corresponds to the corresponding light focusing element (21), and the light emitted by the light source (1) can be focused by the light focusing element (21) and emitted to a light incident surface (31) of the aspheric lens (3), and emitted from a light emitting surface (32) of the aspheric lens (3). In addition, the present invention also discloses a vehicle headlamp and a vehicle. The vehicle lamp module of the present invention has a simple structure and forms a uniform light distribution pattern.

Description

Technical Field

[0001] The invention relates to a vehicle lighting device, in particular to a vehicle lamp module, and further to a vehicle headlamp and a vehicle. Background Art

[0002] For night driving, the importance of automobile lighting systems, especially automobile headlights, is self-evident. When the car is driving at high speed, the dazzling high beam may cause the driver to lose control of the car, and then unpredictable dangers may occur. Therefore, the car headlights should not only provide the driver with a wide visual range and good visual conditions, but also affect other road participants as little as possible and avoid dazzling other road participants. With the development of technology, matrix LED headlights have become one of the future development directions of automobile lights. The light source of matrix LED headlights is composed of multiple LEDs, which are arranged in a certain way to form an array pattern. According to the position of vehicles and pedestrians in the field of vision in front of the vehicle, the matrix LED headlights can turn off the LEDs in the corresponding area to avoid dazzling pedestrians or oncoming drivers.

[0003] In the prior art, matrix-type headlight modules generally use matrix-arranged light sources and focusing elements corresponding to the light sources to solve the technical problem that high beams dazzle drivers. The Chinese utility model patent with application date of April 13, 2018 and application number 201820529985.0 discloses an optical module and a headlight. The light concentrator used in the optical module includes a plurality of light guides, and the light input ends of each light guide correspond to each light source. The light output ends converge together to form an arc-shaped light output portion. The light concentrator has a converging effect on the light emitted by the light source, and makes the light emitted by adjacent light sources merge to a certain extent on the light output surface of the concentrator, so that the light spots formed by the light emitted by each light source are more evenly connected. However, the structure of the concentrator is very complex, and the relative position accuracy between the light guides needs to be guaranteed. The processing accuracy of the concentrator is difficult to guarantee; and the installation structure of the concentrator is also very complex, and the cumulative installation error is large, which will lead to low precision of the optical system of the optical module and affect the light shape effect of the headlight.

[0004] With the development of the automobile industry, matrix headlights are not only required to realize the ADB adaptive high beam function, but also to further improve the uniformity of the headlight shape, enhance the heat dissipation performance of the headlights, and reduce the weight and size of the headlights.

[0005] In view of the above-mentioned defects of the prior art, it is necessary to design a new type of vehicle light module. Summary of the invention

[0006] The first technical problem to be solved by the present invention is to provide a vehicle light module having a simple structure and uniform light shape.

[0007] The second technical problem to be solved by the present invention is to provide a vehicle headlamp with a simple structure and uniform light shape.

[0008] The third technical problem to be solved by the present invention is to provide a vehicle whose light shape is uniform and the cost is low.

[0009] In order to achieve the above-mentioned purpose, the first aspect of the present invention provides a vehicle lamp module, including a light source, a focusing portion and a light emitting element arranged in sequence along the light emitting direction, the light emitting element is an aspheric lens, the focusing portion includes at least one focusing element, the light source corresponds to the corresponding one, and the light emitted by the light source can be converged by the focusing element and then emitted to the light incident surface of the aspheric lens, and emitted from the light emitting surface of the aspheric lens.

[0010] Preferably, the light-emitting surface of the aspheric lens is constructed so that the central lateral cross-section of the aspheric lens intersects with the light-emitting surface of the aspheric lens to form a central lateral section, and the central lateral section has a first curvature dividing point and a second curvature dividing point, the first curvature dividing point is any point between the midpoint of the central lateral section and the left endpoint, the second curvature dividing point is any point between the midpoint of the central lateral section and the right endpoint, the curvature from the first curvature dividing point to the second curvature dividing point of the central lateral section is equal, and the curvature from the first curvature dividing point to the left endpoint of the central lateral section and the curvature from the second curvature dividing point to the right endpoint of the central lateral section first increase and then decrease.

[0011] Preferably, the curvature of the left endpoint of the central transverse section and / or the curvature of the right endpoint of the central transverse section is equal to the curvature from the first curvature dividing point to the second curvature dividing point of the central transverse section.

[0012] As a preferred structural form, the light-emitting surface of the aspheric lens is a curved surface convex forward, and the light-emitting surface of the aspheric lens is further constructed so that any longitudinal cross-section of the aspheric lens intersects with the light-emitting surface of the aspheric lens to form a longitudinal section line, and the longitudinal section line has a curvature change demarcation point, and the curvature change demarcation point is any point between the midpoint and the upper end point of the longitudinal section line, the curvature from the curvature change demarcation point to the lower end point of the longitudinal section line is equal, the curvature from the curvature change demarcation point to the upper end point of the longitudinal section line is equal, and the curvature of the upper end point of the longitudinal section line is smaller than the curvature of the lower end point of the longitudinal section line.

[0013] As another preferred structural form, the light-emitting surface of the aspheric lens is a curved surface convex forward, and the light-emitting surface of the aspheric lens is further constructed so that any longitudinal cross-section of the aspheric lens intersects with the light-emitting surface of the aspheric lens to form a longitudinal section line, and the longitudinal section line has a curvature change dividing point, and the curvature change dividing point is any point between the midpoint and the upper end point of the longitudinal section line, and the curvature from the curvature change dividing point to the lower end point of the longitudinal section line is equal, and the curvature from the curvature change dividing point to the upper end point of the longitudinal section line gradually decreases.

[0014] Preferably, the light incident surface of the aspheric lens is convex backwards along the optical axis direction of the aspheric lens.

[0015] Preferably, the focusing portion includes a plurality of focusing elements, and the focusing elements can be arranged in a matrix of a single row and multiple columns or in a matrix of multiple rows and multiple columns.

[0016] More preferably, the light-concentrating element is a plano-convex lens, wherein the light-incident surface of the light-concentrating element is a plane, and the light-exiting surface of the light-concentrating element is a curved surface convex forward.

[0017] Specifically, the vehicle lamp module further comprises a mounting frame for mounting the light-collecting part, the mounting frame is provided with positioning pins and mounting holes, the mounting frame is provided with flanges around, and the light-collecting part is integrally formed or assembled with the mounting frame.

[0018] Preferably, the light source is arranged in front of the focus of the focusing element.

[0019] More preferably, the light source is disposed on the focal plane of the aspheric lens.

[0020] A second aspect of the present invention provides a vehicle headlamp, comprising a headlight module as described in any one of the technical solutions of the first aspect, wherein the headlight module is arranged and distributed in a longitudinal, transverse, or oblique manner.

[0021] A third aspect of the present invention provides a vehicle, comprising the vehicle headlight described in the technical solution of the second aspect.

[0022] In the basic technical solution of the present invention, the light emitted by the light source is converged by the focusing part and then emitted to the light incident surface of the aspheric lens, and then emitted through the light exiting surface of the aspheric lens. The focusing part is provided with at least one focusing element. Compared with the concentrator including multiple light guides in the prior art, not only the structure of the car light module is simple, but also the size and weight of the car light module are smaller. In addition, the curvature from the center to the edge of the aspheric lens of the present invention changes continuously, which can change the diffusion angle of the light shape to obtain the desired light shape.

[0023] Other advantages of the present invention and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of an embodiment of the vehicle light module of the present invention;

[0025] Figure 2 This is a second structural schematic diagram of an embodiment of the vehicle light module of the present invention;

[0026] Figure 3 yes Figure 2 A schematic diagram of a central longitudinal section of

[0027] Figure 4 yes Figure 2 A schematic diagram of a central transverse section of

[0028] Figure 5 It is one of the structural schematic diagrams of an embodiment of the light focusing part of the present invention;

[0029] Figure 6 yes Figure 5 A local enlarged view of point A;

[0030] Figure 7 This is a second structural schematic diagram of an embodiment of the light focusing portion of the present invention;

[0031] Figure 8 yes Figure 5 A schematic diagram of a longitudinal section of

[0032] Fig. 9 yes Figure 5 A schematic diagram of a transverse cross section;

[0033] Fig.10 is a schematic diagram of a central longitudinal cross-section of an embodiment of the aspheric lens of the present invention;

[0034] Fig.11 is a central transverse cross-sectional schematic diagram of an embodiment of the aspheric lens of the present invention;

[0035] Fig.12 is a schematic structural diagram of another embodiment of the aspheric lens of the present invention;

[0036] Fig.13 It is a schematic diagram of the light shape projected by the vehicle light module of the prior art;

[0037] Fig.14 It is a schematic diagram of the light shape projected by the vehicle light module of the present invention.

[0038] Description of Reference Numerals

[0039] 1 Light Source

[0040] 2 Focusing part 21 Focusing element

[0041] 3 Aspheric lens 31 Light incident surface

[0042] 32 Light-emitting surface 33 Longitudinal section

[0043] 34 Center transverse section 35 Optical axis

[0044] 4 Mounting bracket 41 Positioning pin

[0045] 42 Mounting hole 43 Flanged edge DETAILED DESCRIPTION

[0046] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection" and "setting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] It should be understood that, along the light emitting direction, "front" refers to the end where the aspheric lens 3 is located, "rear" refers to the end where the light source 1 is located, "up" refers to the upper side along the light emitting direction when the light module is normally installed, "down" refers to the lower side along the light emitting direction when the light module is normally installed, "left" refers to the left side along the light emitting direction when the light module is normally installed, "right" refers to the right side along the light emitting direction when the light module is normally installed, "longitudinal section" is any section parallel to the optical axis 35 of the aspheric lens 3 and extending vertically from the upper edge to the lower edge of the aspheric lens 3, "longitudinal section line 33" is a curve formed by the intersection of the longitudinal section and the light emitting surface 32 of the aspheric lens 3, and "transverse section" Perpendicular to the longitudinal section, the "transverse section" is a curve formed by the intersection of the transverse section and the light-emitting surface 32 of the aspheric lens 3, the "central longitudinal section" is a longitudinal section passing through the optical axis 35 of the aspheric lens 3, the "central transverse section" is a transverse section passing through the optical axis 35 of the aspheric lens 3, the "central longitudinal section" is a curve formed by the intersection of the central longitudinal section and the light-emitting surface 32 of the aspheric lens 3, the "central transverse section 34" is a curve formed by the intersection of the central transverse section and the light-emitting surface 32 of the aspheric lens 3, and the "midpoint of the central transverse section 34" is the intersection of the central transverse section 34 and the optical axis 35, wherein the optical axis 35 is an axis passing through the focus of the aspheric lens 3 and extending in the front-to-back direction. The terms are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0049] refer to Figures 1 to 4The vehicle lamp module in the basic scheme of the present invention comprises a light source 1, a focusing part 2 and a light emitting element arranged in sequence along the emitting direction of the light source 1, wherein the light source 1 may be an LED light emitting chip, an OLED light emitting chip or a light emitting chip based on a laser light source; the focusing part 2 may include at least one focusing element 21, each focusing element 21 corresponds to a light source 1 behind it, and the light emitting element adopts an aspheric lens 3. The divergent light emitted by the light source 1 is converged by the focusing element 21 and emitted to the light incident surface 31 of the aspheric lens 3, and emitted from the light emitting surface 32 of the aspheric lens 3. By adjusting the surface curvature of the light emitting surface 32 of the aspheric lens 3, the refractive power of the aspheric lens 3 can be changed, so as to project the desired high beam light distribution pattern on the light screen. When the focusing portion 2 includes only one focusing element 21, the vehicle lamp module can realize the basic high beam function and obtain the high beam light shape that complies with the regulations. When the focusing portion 2 includes multiple focusing elements 21, the light source 1 corresponding to the rear of each focusing element 21 is separately addressed, and the high beam lighting area is subdivided into multiple lighting areas. When the on-board sensor system detects an oncoming vehicle in the opposite lane, the light source 1 in the corresponding area is turned off, which effectively prevents the glare of the high beam and has a good lighting effect in other areas of the road, realizing the adaptive high beam function.

[0050] Preferably, the central transverse cross section of the aspheric lens 3 intersects with the light exit surface 32 of the aspheric lens 3 to form a central transverse section 34, and the central transverse section 34 has a first curvature dividing point and a second curvature dividing point, the first curvature dividing point is any point between the midpoint of the central transverse section 34 and the left end point, and the second curvature dividing point is any point between the midpoint of the central transverse section 34 and the right end point. The positions of the first curvature dividing point and the second curvature dividing point can be set symmetrically, or can be adjusted according to the desired light shape, or can be set asymmetrically, or can be as follows Fig.11 As shown, they are all arranged at the midpoint of the central transverse section 34. For the convenience of description, the curve between the first curvature dividing point and the second curvature dividing point of the central transverse section 34 is called the middle curve, the curve from the first curvature dividing point to the left endpoint of the central transverse section 34 is called the left curve, and the curve from the second curvature dividing point to the right endpoint of the central transverse section 34 is called the right curve. The curvatures of the middle curves are equal, and the curvatures of the left curve and the right curve both change in a manner that they first increase and then decrease in a direction away from the optical axis 35. Preferably, the curvature can be reduced to be equal to the curvature of the middle curve. More vividly, in order to facilitate the description of the change in curvature of the light-emitting surface 32 of the aspheric lens 3 of the present invention, a virtual spherical lens is constructed based on the aspheric lens 3. The spherical lens has a constant curvature from the center to the edge of the lens and the curvature of the center of the light-emitting surface of the spherical lens is the same as the curvature of the center of the light-emitting surface 32 of the aspheric lens 3, as shown in FIG. Fig.10 and Fig.11As shown, the solid line in the figure is the central longitudinal section 33 or the central transverse section 34 of the aspherical lens 3, and the dotted line is the longitudinal section or the transverse section at the corresponding position of the spherical lens. Compared with the traditional spherical lens, since the curvature variation rule of the middle curve of the central transverse section 34 of the aspherical lens 3 is the same as that of the middle curve of the transverse section at the corresponding position of the spherical lens, and the curvatures of the left curve and the right curve of the central transverse section 34 of the aspherical lens 3 are both greater than the curvatures of the left curve and the right curve of the transverse section at the corresponding position of the spherical lens, the light emission direction of the left and right parts of the aspherical lens 3 is emitted in the direction close to the optical axis 35; since the curvatures of the left curve and the right curve of the central transverse section 34 of the aspherical lens 3 first increase and then decrease in the direction away from the optical axis 35, the amplitude of the emitted light of the left and right parts of the aspherical lens 3 close to the optical axis 35 first increases and then decreases, that is, when the curvature increases, the light has a tendency to be gradually projected in the direction close to the optical axis 35, and when the curvature decreases, the light gradually changes from being projected in the direction close to the optical axis 35 to being projected in the direction away from the optical axis 35. The curvature variation rule of the central transverse section 34 enables the outgoing light in the left and right directions of the light-emitting surface of the aspherical lens 3 to achieve high brightness in the middle area as a whole, blurred boundaries between light spots, and improved light shape uniformity.

[0051] More preferably, reference Fig.10 Any longitudinal section of the aspheric lens 3 intersects with the light exiting surface 32 of the aspheric lens 3 to form a longitudinal section line 33. The longitudinal section line 33 has a curvature change dividing point. The curvature change dividing point can be any point between the midpoint and the upper end point of the longitudinal section line 33. The position of the curvature change dividing point can be adjusted according to the desired light shape. For the convenience of description, the curve between the curvature dividing point and the upper end point of the longitudinal section line 33 is called the upper curve, and the curve between the curvature dividing point and the lower end point of the longitudinal section line 33 is called the middle and lower curve. As a preferred structural form, the curvatures of the middle and lower curves of the longitudinal section 33 are equal, the curvatures of the upper curves of the longitudinal section 33 are equal, and the curvature of the upper end point of the longitudinal section 33 is smaller than the curvature of the lower end point of the longitudinal section 33; as another preferred structural form, the curvatures of the middle and lower curves of the longitudinal section 33 are equal, and the curvature of the upper curve of the longitudinal section 33 gradually decreases in the direction away from the optical axis 35. More vividly, compared with the traditional spherical lens, the middle and lower parts of any longitudinal section 33 of the aspherical lens 3 have the same change pattern as the middle and lower parts of the longitudinal section at the corresponding position of the spherical lens, and the curvature of the upper curve of the longitudinal section 33 of the aspherical lens 3 is smaller than the curvature of the upper curve of the longitudinal section at the corresponding position of the spherical lens. If a traditional spherical lens is used to project light, the light is basically emitted parallel to the optical axis 35 of the spherical lens, and the high beam light shape formed is as follows: Fig.13As shown, the high beam is symmetrically distributed in the area above and below the horizontal 0 degree line, which does not meet the regulatory requirements for high beam shape; refer to Fig.14 If an aspherical lens 3 is used to project light, the same light emitted from the upper curve of the longitudinal section 33 of the aspherical lens 3 is farther away from the optical axis 35 than from the upper curve of the longitudinal section of the spherical lens. Most of the high beam light shape formed is located above the horizontal 0 degree line and has a large diffusion angle at the top. Its light shape range meets the regulatory requirements for high beam light shape.

[0052] Preferably, the aspheric lens 3 is a biconvex lens, and its light incident surface 31 bulges backward along the optical axis 35 of the aspheric lens 3, so that the focal point formed by the sunlight when irradiating the aspheric lens 3 is closer to the aspheric lens 3 and away from the decorative ring, thereby avoiding the decorative ring from being burned. Of course, the aspheric lens 3 can also be a plano-convex lens, a concave-convex lens, etc.

[0053] The aspheric lens in the preferred embodiment of the present invention is based on the spherical lens, and the light exit surface 32 of the aspheric lens 3 is constructed so that the curvature of the middle curve of the central transverse section 34 is equal to the curvature of the transverse section at the corresponding position of the spherical lens, and the curvature of the left curve of the central transverse section 34 of the aspheric lens 3 and the curvature of the right curve of the central transverse section 34 of the aspheric lens 3 first increase and then decrease in the direction away from the optical axis 35 and decrease to be equal to the curvature of the middle curve, that is, the left endpoint coincides with the corresponding left endpoint of the spherical lens, and the right endpoint coincides with the corresponding right endpoint of the spherical lens; and the curvature of the middle and lower curve of the longitudinal section 33 of the aspheric lens 3 is equal to the curvature of the spherical lens, and the curvature of the upper curve of the longitudinal section 33 of the aspheric lens 3 gradually decreases in the direction away from the optical axis 35. For the aspheric lens 3 in the preferred embodiment of the present invention, the light exit surface 32 of the aspheric lens 3 can be constructed in the following manner: the central longitudinal section line of the aspheric lens 3 is used as the contour line, and the central transverse section line 34 of the aspheric lens 3 is used as the guide line to sweep to form a curved surface; or the central transverse section line 34 of the aspheric lens 3 is divided into a plurality of line segments, and the longitudinal section line 33 of the aspheric lens 3 passing through the dividing point of each line segment is used as the contour line, and the corresponding line segment of the central transverse section line 34 is used as the guide line to sweep, and the plurality of sweeps are The surfaces are connected to form a light emitting surface 32, so that the light emitting surface 32 can be divided into a number of sweeping surfaces. During the design of the light emitting surface 32, it is convenient to adjust the parameters of each sweeping surface to fine-tune the formed light shape. The longitudinal sections 33 serving as contour lines in this form include a number of lines. Under the condition that the curvature of the upper curve of the longitudinal section 33 is less than the curvature of the longitudinal section at the corresponding position of the spherical lens, the curvature of the upper curve of each longitudinal section 33 can be different, and the position of the curvature change dividing point of each longitudinal section 33 can also be adjusted according to the desired light shape.

[0054] In the structure of the aspheric lens 3 in the preferred embodiment of the present invention, a light source 1 is provided at the focus of the aspheric lens 3. The refraction law of the aspheric lens 3 is more vividly described in combination with the light emitted by the light source 1: Fig.10 Since the curvatures of the middle and lower curves of the longitudinal section 33 of the aspheric lens 3 are equal, the light L1 refracted through the middle and lower parts of the light exit surface 32 of the aspheric lens 3 is substantially parallel to the direction of the optical axis 35 of the aspheric lens 3; since the curvature of the upper curve of the longitudinal section 33 of the light exit surface 32 of the aspheric lens 3 gradually decreases in the direction away from the optical axis 35, the light L2 refracted through the upper part of the light exit surface 32 of the aspheric lens 3 is emitted obliquely upward relative to the direction of the optical axis 35; with reference to Fig.11 , since the first curvature dividing point and the second curvature dividing point of the central transverse section 34 are both set at the midpoint of the central transverse section 34, and the curvatures of the left curve and the right curve of the central transverse section 34 first increase and then decrease relative to the midpoint of the central transverse section 34 in the direction away from the optical axis 35, therefore, since the curvature of the position where the refraction point of L3 is located is greater than the curvature at the midpoint, the light ray L3 is emitted in the direction close to the optical axis 35; since the curvature of the position where the refraction point of the light ray L4 is located is greater than the curvature of the position where the refraction point of the light ray L3 is located, therefore, the light ray L4 is emitted in a direction closer to the optical axis 35 than the light ray L3. The light ray L5 is emitted in a direction close to the optical axis 35; since the curvature of the position where the refraction point of the light ray L5 is located is smaller than the curvature of the position where the refraction point of the light ray L4 is located, the light ray L5 is emitted in a direction away from the optical axis 35 compared with the light ray L4; since the curvature of the position where the refraction point of the light ray L6 is located is smaller than the curvature of the position where the refraction point of the light ray L5 is located, the light ray L6 is emitted in a direction farther away from the optical axis 35 than the light ray L5, that is, it is emitted in a direction basically parallel to the optical axis 35. In this way, the aspherical lens 3 can diffuse the received light upward and project it to form a brighter and more uniform light shape in the middle. Fig.10 and Fig.11 Although the light path diagram is the light path from the light source 1 directly to the aspheric lens 3, without being focused by the focusing element 21, the light emitted by the light source 1 is focused by the focusing element 21 and then emitted to the aspheric lens 3 also follows the above-mentioned refraction law. When the focusing portion 2 includes a row of focusing elements 21, correspondingly, there is a light source 1 behind each focusing element 21, and the light emitted by each light source 1 is converged by the focusing element 21 and then emitted to the aspheric lens 3 also follows the above-mentioned refraction law. In this way, a high-beam light shape with blurred boundaries between light spots and high uniformity can be formed through the projection of the aspheric lens 3, and most of the high-beam light shapes formed are located above the horizontal 0-degree line and have a large diffusion angle above.

[0055] More preferably, reference Figures 10 to 12The aspheric lens 3 has a light exiting surface 31 and a light entering surface 32. The light entering surface 32 is an aspheric surface and may be provided with a vertical stripe structure, a horizontal stripe structure or a grid structure on the surface, so as to further diffuse the light. More preferably, the aspheric lens 3 is a biconvex lens, and its light entering surface 31 bulges backward along the direction of the optical axis 35 of the aspheric lens 3. In this way, the focal point formed by the sunlight when irradiating the aspheric lens 3 is closer to the aspheric lens 3 and away from the decorative ring, thereby avoiding the decorative ring from being burned. Of course, the aspheric lens 3 may also be a plano-convex lens, a concave-convex lens, etc.

[0056] Preferably, reference Figure 5 and Figure 6 The focusing part 2 may include a plurality of focusing elements 21, and the focusing elements 21 may be arranged in a single row and multiple columns in a matrix or in a multi-row and multi-column matrix. The light source 1 corresponding to the rear of each focusing element 21 is separately addressed, and the high beam lighting area is subdivided into a plurality of lighting areas. When the vehicle-mounted sensor system detects an oncoming vehicle, the light source 1 in the corresponding area is turned off to realize the adaptive high beam function.

[0057] Preferably, reference Figure 8 and Fig. 9 , the focusing element 21 is a plano-convex lens, wherein the light incident surface of the focusing element 21 is a plane, and the light emitting surface is a curved surface convex forward. Of course, the focusing element 21 can also adopt a plano-convex, biconvex, concave-convex or concave-planar lens. The focusing element 21 is preferably a plano-convex lens. Compared with the light concentrator with a focusing cup structure in the prior art, the focusing element 21 has a simple structure and high light efficiency; under the same light utilization rate, the distance between the light source 1 and the light incident surface of the focusing element 21 can be appropriately increased to improve the heat dissipation effect of the headlight module. The light source 1 is arranged 0.1mm to 5mm behind the light incident surface of the focusing element 21, and the distance is preferably 0.5mm; and compared with the focusing element 21 with a convex light incident surface, the light incident surface of the focusing element 21 adopts a plane, and the light incident on the light incident surface is not easy to be totally reflected, which further improves the light efficiency.

[0058] Specifically, refer to Figure 7 The vehicle lamp module of the present invention further comprises a mounting frame 4 for mounting the focusing part 2, and the mounting frame 4 is provided with a positioning pin 41 and a mounting hole 42 to position and mount the focusing part 2 on other components, such as a radiator; the mounting frame 4 is provided with a flange 43 around it to enhance the strength of the mounting frame 4; the focusing part 2 and the mounting frame 4 can be integrally formed or assembled and connected.

[0059] Specifically, the light source 1 is arranged in front of the focus of the focusing element 21, and the distance is preferably 0.5 mm. Compared with the case where the light source 1 is arranged at the focus of the focusing element 21, the light will diffuse around after being refracted by the light-emitting surface of the focusing element 21, which is conducive to forming the final high-beam light shape after being refracted by the aspheric lens 3. Moreover, the light source 1 is arranged in front of the focus of the focusing element 21 to further improve the lighting effect.

[0060] More specifically, the light source 1 is disposed on the focal plane of the aspheric lens 3 so that the light distribution pattern projected on the light screen is clearer.

[0061] The vehicle lamp module in the preferred embodiment of the present invention comprises a light source 1, a focusing part 2 and a light emitting element arranged in sequence along the light emitting direction, wherein the focusing part 2 comprises a row of focusing elements 21 distributed in a matrix, the focusing element 21 is a plano-convex lens, the light source 1 is arranged behind the focusing element 21 and corresponds to each focusing element 21 one by one; the light emitting element is an aspherical lens 3 in the above preferred embodiment. The vehicle lamp module also comprises a mounting frame 4 for mounting the focusing part 2, the mounting frame 4 is provided with a positioning pin 41 and a mounting hole 42 for connecting with components such as a radiator, the mounting frame 4 is provided with a flange 43 around it to enhance the strength of the mounting frame 4, the focusing part 2 is assembled and connected with the mounting frame 4, or the focusing part 2 and the mounting frame 4 are directly integrally formed. When installing the vehicle lamp module, the light source 1 can be arranged 0.5 mm in front of the focus of the focusing element 21. Turn on the light source 1, and the light emitted by the light source 1 is focused by the focusing part 2 and then emitted to the aspheric lens 3. The aspheric lens 3 diffuses the received light upward and projects it to form a brighter and more uniform light shape in the middle. In addition, the light source 1 corresponding to each focusing element 21 of the headlight module is separately addressed, and the high beam lighting area is subdivided into multiple lighting areas. When the on-board sensor system detects an oncoming vehicle in the opposite lane, the light source 1 in the corresponding area is turned off, which effectively prevents the glare of the high beam, and has a good lighting effect in other areas of the road, realizing the adaptive high beam function. The vehicle light module in the preferred embodiment of the present invention can not only realize the function of adaptive high beam, but also adopts the focusing element 21 as the focusing part 2. Compared with the concentrator in the prior art, it has higher light efficiency, occupies less space, has a simple structure, is smaller in size and lighter in weight. The focusing element 21 is integrally formed with the mounting frame, which can further improve the installation accuracy of the vehicle light module. When dimming, it is only necessary to adjust the relative position of the focusing part 2 and the aspheric lens 3, thereby improving the optical accuracy of the vehicle light module. Moreover, by using the aspheric lens 3 with a changed curvature of the light emitting surface 32 as the light emitting element, a high beam light shape with higher brightness and uniformity in the middle area can be formed. Furthermore, by adjusting the curvature of the light emitting surface 32 of the aspheric lens 3, light shapes of various shapes can be flexibly obtained.

[0062] The embodiment of the vehicle headlamp of the present invention comprises at least one vehicle lamp module of any one of the above technical solutions, and the vehicle lamp module can be distributed vertically, horizontally, or obliquely arranged. The embodiment of the vehicle headlamp of the present invention can include the vehicle lamp modules described in all the above embodiments, and thus at least has all the beneficial effects brought by the embodiments of the above vehicle lamp modules.

[0063] The vehicle embodiment of the present invention may include the vehicle headlamp described in the above embodiment, and thus at least has all the beneficial effects brought by the above embodiment of the vehicle headlamp.

[0064] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A vehicle light module, characterized in that: The invention comprises a light source (1), a light focusing portion (2) and a light emitting element which are sequentially arranged along a light emitting direction, wherein the light source (1) is an LED light emitting chip, an OLED light emitting chip or a light emitting chip based on a laser light source, the light emitting element is an aspherical lens (3), the light focusing portion (2) comprises a plurality of light focusing elements (21), the light source (1) corresponds to the corresponding light focusing elements (21), the light emitting surface (32) of the aspherical lens (3) is constructed so that a central transverse cross section of the aspherical lens (3) intersects with the light emitting surface (32) of the aspherical lens (3) to form a central transverse section (34), the central transverse section (34) having a first curvature demarcation point and a second curvature demarcation point, the first curvature demarcation point The curvature demarcation point is any point between the midpoint of the central transverse section (34) and the left end point, the second curvature demarcation point is any point between the midpoint of the central transverse section (34) and the right end point, the curvatures from the first curvature demarcation point to the second curvature demarcation point of the central transverse section (34) are equal, the curvatures from the first curvature demarcation point to the left end point of the central transverse section (34) and the curvatures from the second curvature demarcation point to the right end point of the central transverse section (34) both increase first and then decrease, and the light emitted by the light source (1) can be converged by the focusing element (21) and emitted toward the light incident surface (31) of the aspheric lens (3), and emitted from the light exit surface (32) of the aspheric lens (3).

2. The vehicle light module according to claim 1, characterized in that: The curvature of the left end point of the central transverse section (34) and / or the curvature of the right end point of the central transverse section (34) are equal to the curvature from the first curvature dividing point to the second curvature dividing point of the central transverse section (34).

3. The vehicle light module according to claim 2, characterized in that: The light-emitting surface (32) of the aspheric lens (3) is a curved surface convex forwards. The light-emitting surface (32) of the aspheric lens (3) is further constructed so that any longitudinal cross section of the aspheric lens (3) intersects with the light-emitting surface (32) of the aspheric lens (3) to form a longitudinal section line (33). The longitudinal section line (33) has a curvature change demarcation point. The curvature change demarcation point is any point between the midpoint and the upper end point of the longitudinal section line (33). The curvatures of the longitudinal section line (33) from the curvature change demarcation point to the lower end point are equal. The curvatures of the longitudinal section line (33) from the curvature change demarcation point to the upper end point are equal. The curvatures of the longitudinal section line (33) from the curvature change demarcation point to the upper end point are equal. The curvature of the upper end point of the longitudinal section line (33) is smaller than the curvature of the lower end point of the longitudinal section line (33).

4. The vehicle light module according to claim 2, characterized in that: The light-emitting surface (32) of the aspheric lens (3) is a curved surface convex forwards. The light-emitting surface (32) of the aspheric lens (3) is further constructed so that any longitudinal cross section of the aspheric lens (3) intersects with the light-emitting surface (32) of the aspheric lens (3) to form a longitudinal section line (33). The longitudinal section line (33) has a curvature change dividing point. The curvature change dividing point is any point between the midpoint and the upper end point of the longitudinal section line (33). The curvature of the longitudinal section line (33) from the curvature change dividing point to the lower end point is equal, and the curvature of the longitudinal section line (33) from the curvature change dividing point to the upper end point gradually decreases.

5. The vehicle light module according to any one of claims 1 to 4, characterized in that: The light incident surface (31) of the aspheric lens (3) is convex backwards along the direction of the optical axis (35) of the aspheric lens (3).

6. The vehicle lamp module according to any one of claims 1 to 4, characterized in that: The light focusing element (21) is a plano-convex lens, wherein the light incident surface of the light focusing element (21) is a plane surface, and the light exit surface of the light focusing element (21) is a curved surface convex forward.

7. The vehicle lamp module according to any one of claims 1 to 4, characterized in that: It also comprises a mounting frame (4) for mounting the light focusing portion (2), the mounting frame (4) being provided with positioning pins (41) and mounting holes (42), the mounting frame (4) being provided with flanges (43) around its periphery, and the light focusing portion (2) and the mounting frame (4) being integrally formed or assembled and connected.

8. The vehicle lamp module according to any one of claims 1 to 4, characterized in that: The light source (1) is arranged in front of the focus of the light focusing element (21).

9. The vehicle lamp module according to any one of claims 1 to 4, characterized in that: The light source (1) is arranged on the focal plane of the aspheric lens (3).

10. A vehicle headlamp, characterized in that: The invention comprises at least one vehicle light module according to any one of claims 1 to 9, wherein the vehicle light modules are arranged in a longitudinal, transverse or inclined manner.

11. A vehicle, characterized in that: Comprising a vehicle headlamp according to claim 10.

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