Lighting module and vehicle

Abstract

The application discloses a lighting module and a vehicle. The lighting module comprises a light source for forming a light emitting area extending along a first direction; an inner lens capable of collimating and adjusting light rays emitted by the light source and making the light rays have a diffusion angle greater than zero in a second direction perpendicular to the first direction, thereby forming a first exit light beam; and an outer lens comprising a line focusing lens and located on a light emitting side of the inner lens, used for converging the first exit light beam in the second direction, thereby forming a second exit light beam; a converging position of a reverse extension line of the light rays of the first exit light beam overlaps or is located near a focal line of the line focusing lens; and the light source is located between the focal line and the outer lens. The lighting module can reduce the size of the module while ensuring high light emitting efficiency and light intensity, thereby saving cost and installation space and improving market competitiveness.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, and in particular to a lighting module and a vehicle equipped with the lighting module. Background Technology

[0002] Automotive lighting systems are increasingly adopting modular designs, such as single-beam modules. A single-beam module is an independent lighting unit, typically containing key components such as a light source, reflector, and lens. It emits a beam of light in a specific direction and type, and can be used in various automotive lighting systems such as headlights, fog lights, and taillights. Currently, developing a small-sized, high-efficiency module to save costs and installation space, thereby improving market competitiveness, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a lighting module and vehicle that can reduce the module size while ensuring high light output efficiency and light intensity, so as to save costs and installation space and improve market competitiveness.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A lighting module, comprising:

[0006] A light source, used to form a light-emitting area extending along a first direction;

[0007] The inner lens is capable of collimating and adjusting the light emitted by the light source and making it have a diffusion angle greater than zero in a second direction perpendicular to the first direction, thus forming a first emitted beam.

[0008] An outer lens, including a line focusing lens, is located on the light-emitting side of the inner lens and is used to converge the first emitted light beam in the second direction to form a second emitted light beam.

[0009] Wherein, the convergence point of the backward extension line of the first outgoing beam formed by the light beam emitted by the light source passing through the lens unit overlaps with or is located near the focal line of the line focusing lens; and the light source is located between the focal line and the outer lens.

[0010] Optionally, in the above lighting module, the light source includes a plurality of LED beads, which are arranged sequentially along the first direction;

[0011] The inner lens includes multiple lens units, which are located on the light-emitting side of the multiple lamp beads and correspond one-to-one with the multiple lamp beads.

[0012] Optionally, in the above-described lighting module, each lens unit includes:

[0013] The light-incident surface, located on the side of the lens unit closer to the lamp bead, includes a focusing structure for adjusting the light beam emitted by the lamp bead into a collimated light beam;

[0014] The light-emitting surface, located on the side of the lens unit away from the lamp bead, includes a curved surface structure for adjusting the collimated beam to diffuse in the second direction.

[0015] Optionally, in the above-mentioned lighting module, at least a portion of the light-incident surface is a spherical surface, an ellipsoidal surface, or a conical surface;

[0016] And / or, a groove is provided on the light-incident surface at the position corresponding to the lamp bead.

[0017] Optionally, in the above lighting module, the outer lens is an arc-shaped plate structure, and the distance between the first side end of the arc-shaped plate structure and the plane where the plurality of lamp beads are located is greater than the distance between the second side end of the arc-shaped plate structure and the plane where the plurality of lamp beads are located.

[0018] In the plurality of lens units, at least some of the adjacent light-emitting surfaces are connected at a stepped surface;

[0019] The line connecting the first side end and the second side end is inclined in the same direction as the plane containing the plurality of LED beads.

[0020] Optionally, in the above-mentioned lighting module, the inner lens is an integral structural component.

[0021] Optionally, the lighting module described above also includes:

[0022] A fixed frame, wherein the outer lens is located within the fixed frame and is fixedly connected to it;

[0023] The bracket has a hollow internal structure with a first opening and a second opening at its two ends. The first opening is adapted to the outer lens and connected to the fixed frame, while the second opening can accommodate the inner lens.

[0024] The heat sink is located on the side of the LED chip away from the lens unit;

[0025] The fixed frame, the bracket, the inner lens, the LED beads, and the heat sink are fixedly connected.

[0026] A vehicle equipped with the lighting module described above.

[0027] Optionally, in the aforementioned vehicle, the lighting module is a high beam headlight.

[0028] Optionally, in the above-mentioned vehicle, the first direction is the left-right direction of the vehicle body.

[0029] As can be seen from the above technical solution, in the lighting module and vehicle provided by this application, since the first emitted beam formed by the light beam emitted by the light source after passing through the lens unit has a diffusion angle greater than zero in the second direction, the convergence position of its light beam backward extension line forms a straight line, and this straight line is located near the focal line of the outer lens. Thus, while increasing the focal length of the outer lens, improving the high beam intensity and improving the light output efficiency, it can also compress the axial space of the light output direction and reduce the module size, which is beneficial to saving the space occupied by the module installation and saving production costs. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is an exploded view of a lighting module provided in an embodiment of this application.

[0032] Figure 2 and Figure 3 These are schematic diagrams showing the positional relationship between the inner and outer lenses from different perspectives, as provided in the embodiments of this application.

[0033] Figure 4 This is a schematic diagram of the structure of the light-incident surface of an inner lens provided in an embodiment of this application.

[0034] Figure 5 This is a schematic diagram of the structure of an inner lens light-emitting surface provided in an embodiment of this application.

[0035] Figure 6 Beam path diagrams (side view) of the inner and outer lenses provided in embodiments of this application.

[0036] Figure 7 for Figure 6 A partial diagram of the light path.

[0037] Figure 8 A top view of the beam path in the inner and outer lenses provided in the embodiments of this application.

[0038] Figure 9 for Figure 8 A partial diagram of the light path.

[0039] Figure 10A test image of the high beam screen of a lighting module provided in an embodiment of this application.

[0040] in:

[0041] 1-Outer lens, 2-Bracket, 3-Inner lens, 4-PCB board, 5-Light source, 6-Heat sink

[0042] 11-Fixed frame, 12-Ear plate, 30-Lens unit, 31-First side surface, 32-Second side surface

[0043] 33-Third side surface, 34-Fourth side surface, 35-Stepped surface, 36-Foot, 101-First side end

[0044] 102 - Second side end, 301 - Light-incident surface, 302 - Light-out surface, 3010 - Groove. Detailed Implementation

[0045] This application provides a lighting module and vehicle that can reduce module size while ensuring high light output efficiency and light intensity, thereby saving costs and installation space and improving market competitiveness.

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] Please see Figure 1 , Figure 2 and Figure 3 The lighting module provided in this application embodiment includes a light source 5, an inner lens 3, and an outer lens 1. The light source 5 is used to form a light-emitting area extending along a first direction M. Furthermore, as... Figure 6 and Figure 7As shown: the inner lens 3 collimates and adjusts the light emitted from the light source 5, ensuring a diffusion angle greater than zero in the second direction N, perpendicular to the first direction M, thus forming a first emitted beam. The outer lens 1 includes a line-focusing lens located on the light-emitting side of the inner lens 3, used to converge the first emitted beam in the second direction N, forming a second emitted beam with higher brightness. Specifically, the convergence point P of the backward extension line of the first emitted beam formed after the light source 5 passes through the lens unit 30 overlaps with or is near the focal line L of the line-focusing lens; moreover, the light source 5 is located between the focal line L and the outer lens 1, meaning the distance from the light source 5 to the outer lens 1 is less than the focal length of the outer lens 1. Although the light source 5 is not located at the focal line of the outer lens 1, because the convergence point P of the backward extension line of the first emitted beam overlaps with or is near the focal line L of the line-focusing lens, the inner lens 3 enables the light emitted from the light source 5 to meet the optimal illumination position of the outer lens 1, resulting in a higher light intensity for the illumination module.

[0048] As can be seen, in the lighting module provided in this application embodiment, since the light beam emitted by the light source 5 passes through the lens unit 30 and forms the first emitted light beam with a diffusion angle greater than zero in the second direction N, the convergence position P of its light beam backward extension forms a straight line, and this straight line is located near the focal line L of the outer lens 1. Thus, while increasing the focal length of the outer lens 1, improving the light intensity of the far beam, and improving the light output efficiency, it can also compress the axial space of the light output direction and reduce the module size, thereby saving the space occupied by the module installation and saving production costs.

[0049] In some embodiments, the first outgoing beam formed by the light beam emitted by the light source 5 after passing through the inner lens 3 not only has a diffusion angle greater than zero in the second direction N, so that the backward extension lines of the light rays in the first outgoing beam converge at the focal line L of the outer lens 1, but also has a small diffusion angle in the first direction M. At this time, the inner lens 3 not only adjusts the light beam emitted by the lamp beads into a collimated beam, but also diffuses the light beam emitted by each lamp bead in the first direction M, so that the light beams emitted by adjacent light sources 5 converge on the light-emitting side of the inner lens 3, thereby increasing the light intensity and the brightness of the gap area between adjacent light sources 5, avoiding light spots, and improving the light emission uniformity of the lighting module.

[0050] In some embodiments, the first emitted beam formed by the light beam emitted by the light source 5 after passing through the inner lens 3 diffuses only in the second direction N, and remains collimated in the first direction M. Furthermore, this first emitted beam remains collimated in the first direction M after passing through the outer lens 1, without diffusion / convergence. Alternatively, in other embodiments, the first emitted beam can also diffuse in the first direction M after passing through the outer lens 1 (e.g., Figure 9(as shown in the diagram) to improve the uniformity of light output; or, in other embodiments, the first emitted light beam may be made to converge in the first direction M after passing through the outer lens 1 to further improve the light intensity.

[0051] Please see Figure 1 and Figure 3 In some embodiments, the light source 5 includes multiple LEDs arranged in a strip along the first direction M to form a light-emitting area extending along the first direction M, which helps improve the heat dissipation efficiency of the lighting module and reduce power consumption. Correspondingly, the inner lens 3 includes multiple lens units 30, which are located on the light-emitting side of the multiple LEDs and correspond one-to-one with each LED. However, it is not limited to this. In other embodiments, the light source 5 can also be set as a strip light strip extending along the first direction M to form a light-emitting area extending along the first direction M. In this case, the inner lens 3 can be multiple lens units 30 arranged in a strip along the first direction M, or it can be designed in other structural forms, as long as the light emitted by the light source 5 can be collimated in the first direction M and have a diffusion angle greater than zero in the second direction N after being adjusted by the inner lens 3.

[0052] Please see Figures 2 to 5 Taking an inner lens 3 composed of multiple lens units 30 arranged sequentially as an example, each lens unit 30 includes an incident light surface 301 and an exiting light surface 302. The incident light surface 301 is located on the side of the lens unit 30 closer to the LED, specifically serving as a focusing structure to adjust the light beam emitted by the LED into a collimated beam. The exiting light surface 302 is located on the side of the lens unit 30 away from the LED, specifically serving as a curved surface structure to adjust the collimated beam to diffuse in the second direction N while maintaining almost no change in the light propagation direction in the first direction M. For example, when the first direction M is the left-right direction of the vehicle (i.e., the horizontal direction), the aforementioned second direction N is the height direction of the vehicle body in the vertical plane. In this case, the exiting light surface 302 of the lens unit 30 can convert the collimated light from the incident light surface 301 into light that diffuses in the vertical height direction while maintaining no change in the light propagation direction (keeping it in a straight line) in the horizontal direction (i.e., the left-right direction of the vehicle). For details, please refer to [link to relevant documentation]. Figure 6 , Figure 7 , Figure 8 and Figure 9When the light source 5 includes multiple LEDs and the outer lens 1 is a contoured focal length lens, the backward extensions of any light rays in the first emitted beam formed by the light beams emitted by each LED after passing through the lens unit 30 converge at the convergence point P. The line connecting the convergence points P of the multiple LEDs is located near the linear focal line L of the outer lens 1, or is collinear with the linear focal line L. The second emitted beam formed by passing through the outer lens 1 converges relative to the first emitted beam in the second direction N (e.g., the vehicle height direction, i.e., the vertical direction), and does not change the direction of light propagation in the first direction M (e.g., the vehicle left-right direction, i.e., the horizontal direction), remaining collimated. Since the focal line L of the outer lens 1 is located near the convergence point formed by the backward extensions of the emitted light rays from the light-emitting surface 302 of the inner lens 3, it is beneficial to increase the light intensity, making the beam illuminate farther and brighter.

[0053] Please see Figure 2 and Figure 5 In some embodiments, the light-emitting surface 302 of each lens unit 30 of the inner lens 3 is a cylindrical partial sidewall shape or an arcuate surface similar to the cylindrical partial sidewall shape, and its central axis (i.e., the central axis of the cylinder) is parallel to the first direction M. Furthermore, please refer to... Figure 3 and Figure 4 Each lens unit 30 of the inner lens 3 has an incident surface 301 that is at least partially spherical, ellipsoidal, or conical. Furthermore, each lens unit 30 has an incident surface 301 with a corresponding groove 3010 at the position of the lamp bead. This groove 3010 can cover the light source 5, ensuring that all or almost all of the light emitted from the light source 5 is within the groove 3010, and that collimation is achieved through the incident surface 301. This helps to ensure that the emitted light from the lighting module has high brightness and avoids power waste.

[0054] Please see Figure 3 In some embodiments, the outer lens 1 is an arc-shaped plate structure, and the distance between the first end 101 of the arc-shaped plate structure and the plane where the multiple LED beads are located is greater than the distance between the second end 102 of the arc-shaped plate structure and the plane where the multiple LED beads are located. Furthermore, please refer to... Figure 5In the plurality of lens units 30, the connection points of at least some adjacent light-emitting surfaces 302 are stepped surfaces 35. The line connecting the first side end 101 and the second side end 102 of the outer lens 1 is inclined in the same direction relative to the plane containing the multiple LED beads in the light source 5 as the inclination direction of the stepped surface 35. It should be noted that each stepped surface includes a first stepped surface, a vertical surface, and a second stepped surface connected in sequence. The first stepped surface is relatively closer to the outer lens 1, and the second stepped surface is relatively farther away from the outer lens 1. The line connecting the center point of the first stepped surface to the center point of the second stepped surface is inclined in the same direction relative to the first stepped surface, i.e., the inclination direction of the stepped surface. Therefore, in the lighting module provided by this application, the shape of the outer lens 1 does not need to be divided into blocks, and the inner lens 3 is an integral structural component, meaning that the plurality of lens units 30 are each part of the integral inner lens 3. Thus, both the inner and outer lenses have a high degree of design freedom, which facilitates convenient layout of the overall lamp shape.

[0055] Please see Figure 1In some embodiments, the lighting module further includes a fixed frame 11, a bracket 2, and a heat sink 6. Specifically: the outer lens 1 is located within and fixedly connected to the fixed frame 11; the bracket 2 has a hollow structure with a first opening and a second opening at its two ends, respectively. The first opening is adapted to the outer lens 1 and connected to the fixed frame 11, while the second opening accommodates the inner lens 3; the heat sink 6 is located on the side of the lamp bead away from the lens unit 30; the fixed frame 11, bracket 2, inner lens 3, lamp bead, and heat sink 6 are fixedly connected. Further, at least the inner surface of the bracket 2 near the second opening is planar; the first side 31, second side 32, third side 33, and fourth side 34 of the inner lens 3, located between the light-incident surface 301 and the light-exit surface 302, are all planar and adapted to the inner surface of the bracket 2; the fixed frame 11 has ear plates 12 at both ends for connecting to the sides of the bracket 2; the sides of the bracket 2 and the inner lens 3 each have outwardly protruding structures for connecting to the heat sink 6. Furthermore, multiple LEDs in the light source 5 are located on the same side of the PCB board 4 (PCB stands for Printed Circuit Board), and the inner lens 3 is provided with feet 36 for fitting and positioning with the PCB board 4. Specifically, the heat sink 6 near the light source 5 has a planar structure; and the sides of the bracket 2 and the inner lens 3 near one end of the heat sink 6 are respectively provided with continuous or spaced extension structures along the circumference. The extension structures of the bracket 2 and the inner lens 3 can fit and position with each other and fit and position with the planar structure of the heat sink 6, so that the bracket 2 and the inner lens 3 can be fixedly mounted on the heat sink 6 by fastening screws or other connection methods through the extension structures; in addition, the inner lens 3 is provided with multiple feet 36 spaced along the circumference, and the bottom surface of each foot 36 near the heat sink 6 is a planar structure that can fit and position with the heat sink 6. Thus, the various parts in the lighting module can be easily assembled together through the above-mentioned extension structures and feet 36, and precise positioning can be performed quickly and easily. Furthermore, since the fixing frame 11 of the outer lens 1 is connected to the bracket 2 by the ear plate 12 and the inner lens 3 is located inside the bracket 2, the two brackets can ensure the fixed installation of the outer lens 1 and the inner lens 3, and make the distance and correspondence between the outer lens 1 and the inner lens 3 meet the predetermined design.

[0056] In specific implementations, the lighting module provided in this application embodiment can be used as a vehicle high beam module. Therefore, this application embodiment also provides a vehicle equipped with the lighting module described above, which is a module unit in the high beam headlight, and the aforementioned first direction M is the left-right direction of the vehicle body, i.e., the horizontal direction, or the aforementioned first direction M can also be a direction slightly inclined forward or backward, upward or downward relative to the left-right direction of the vehicle body, to adapt to the actual shape of the vehicle. Through the above module structure design, the X-axis dimension of the lighting module itself and its X-axis installation space in the vehicle body can be greatly shortened, while the optical efficiency of the vehicle high beam module can be improved, and it is suitable for ultra-narrow shape designs.

[0057] Please see Figure 10 , Figure 10 The high beam screen light spot test diagram of the lighting module provided in the embodiments of this application is from... Figure 10 It can be seen that the luminous flux of this lighting module is 1320 lm, and the maximum luminous intensity (Imax) is 103000 cd. Here, lm is a lumen and cd is a candela.

[0058] It should be noted that the collimating beam mentioned in this application refers to a beam of light with nearly parallel rays, meaning that all rays in the beam remain parallel or approximately parallel in their propagation direction. Furthermore, it should be noted that the line-focusing lens mentioned in this application is sometimes also called a focal line lens or cylindrical lens; it can focus incident light into a line (focal line) rather than a point. Moreover, when a line light source is located at the focal line position of this line-focusing lens, the light emitted from that source can be adjusted by the line-focusing lens into a collimated beam with higher intensity.

[0059] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0061] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lighting module, characterized in that, include: A light source (5) is used to form a light-emitting area extending along a first direction (M); The inner lens (3) is capable of collimating and adjusting the light emitted by the light source (5) and making it have a diffusion angle greater than zero in the second direction (N) perpendicular to the first direction (M), thus forming a first outgoing beam; The outer lens (1), including a line focusing lens, is located on the light-emitting side of the inner lens (3) and is used to converge the first emitted light beam in the second direction (N) to form a second emitted light beam; Wherein, the convergence position (P) of the reverse extension line of the first emitted beam overlaps with or is located near the focal line (L) of the line focusing lens; and the light source (5) is located between the focal line (L) and the outer lens (1).

2. The lighting module according to claim 1, characterized in that, The light source (5) includes a plurality of LED beads, which are arranged sequentially along the first direction (M); The inner lens (3) includes multiple lens units (30), which are located on the light-emitting side of the multiple lamp beads and correspond one-to-one with the multiple lamp beads.

3. The lighting module according to claim 2, characterized in that, Each of the lens units (30) includes: The light-incident surface (301) is located on the side of the lens unit (30) near the lamp bead, and includes a focusing structure for adjusting the light beam emitted by the lamp bead into a collimated light beam; The light-emitting surface (302), located on the side of the lens unit (30) away from the lamp bead, includes a curved structure for adjusting the collimated beam to diffuse in the second direction (N).

4. The lighting module according to claim 3, characterized in that, At least a portion of the light-incident surface (301) is a spherical surface, an ellipsoidal surface, or a conical surface; And / or, the light-incident surface (301) is provided with a groove (3010) at the position corresponding to the lamp bead.

5. The lighting module according to claim 3, characterized in that, The outer lens (1) is an arc-shaped plate structure. The distance between the first side end (101) of the arc-shaped plate structure and the plane where the multiple lamp beads are located is greater than the distance between the second side end (102) of the arc-shaped plate structure and the plane where the multiple lamp beads are located. In the plurality of lens units (30), at least some of the adjacent light-emitting surfaces (302) are connected at a stepped surface (35); The line connecting the first side end (101) and the second side end (102) is inclined in the same direction as the plane containing the plurality of lamp beads.

6. The lighting module according to claim 3, characterized in that, The inner lens (3) is an integral structural component.

7. The lighting module according to claim 6, characterized in that, Also includes: A fixed frame (11) is provided, and the outer lens (1) is located inside the fixed frame (11) and fixedly connected to it; The bracket (2) has a hollow structure inside. The two ends of the hollow structure are a first opening end and a second opening end, respectively. The first opening end is adapted to the outer lens (1) and connected to the fixed frame (11). The second opening end can accommodate the inner lens (3). The heat sink (6) is located on the side of the lamp bead away from the lens unit (30); The fixed frame (11), the bracket (2), the inner lens (3), the lamp bead, and the heat sink (6) are fixedly connected.

8. A vehicle, characterized in that, The device is equipped with a lighting module as described in any one of claims 1 to 7.

9. The vehicle according to claim 8, characterized in that, The lighting module is a high beam headlight.

10. The vehicle according to claim 8, characterized in that, The first direction (M) is the left-right direction of the vehicle body.

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