High / low beam integrated illuminating device and vehicle lamp

Abstract

The application provides a high-low beam integrated illuminating device and a vehicle lamp, comprising two longitudinally arranged light-emitting modules, each light-emitting module comprising a plurality of light sources and a plurality of optical units, the optical units being arranged transversely, each optical unit comprising a reflecting part and a lens unit arranged on the light-emitting side of the reflecting part, the light sources being arranged correspondingly to the reflecting parts, the reflecting part having a reflecting surface, the focal point of the lens unit being arranged on or near the reflecting surface, the light emitted by the light sources being reflected by the reflecting surface and then emitted by the lens unit to form a light element, and the light elements being combined to form the light-emitting shape of the light-emitting module; the two light-emitting modules being a low beam module and a high beam module respectively; and the light-emitting surfaces of the two light-emitting modules being connected to form a smooth curved surface. The low beam module and the high beam module are unitized, and only the light-emitting requirements of the modules need to be considered in the design, so that the modules are relatively independent, thereby avoiding affecting other modules when adjusting one of the light-emitting modules and shortening the research and development cycle.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and more specifically, to an integrated high and low beam lighting device and automotive lighting. Background Technology

[0002] With the development of society and the economy, the automotive industry has also developed. As automotive lighting technology continues to advance, more demands are being placed on the functionality of vehicle lights. Lighting devices that achieve vehicle lighting functions typically incorporate dual-beam modules that integrate high and low beams, thereby achieving both high and low beam patterns and resulting in better lighting effects.

[0003] Existing dual-beam modules all use a single large lens (light-emitting element) to achieve shared high and low beams. However, to meet requirements for beam shape, light efficiency, and other aspects, modifications to the shared lens are necessary. In practical design, this often results in a domino effect; for example, modifying the shared lens to meet low beam requirements necessitates adjustments to the high beam element, leading to lengthy development cycles. Furthermore, optical design on a single large lens makes it difficult to simultaneously meet the diverse requirements of multiple lighting functions. Summary of the Invention

[0004] The purpose of this application is to address the shortcomings of the prior art by providing an integrated high and low beam lighting device and vehicle lamp, so as to solve the problem that it is difficult to simultaneously meet the requirements of multiple modules when multiple modules share a single large lens.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0006] One aspect of this application provides a high and low beam integrated lighting device, including two longitudinally arranged light-emitting modules. Each light-emitting module includes multiple light sources and multiple optical units. The multiple optical units are arranged laterally. Each optical unit includes a reflective part and a lens unit located on the light-emitting side of the reflective part. The light sources and reflective parts are correspondingly arranged. The reflective part has a reflective surface. The focal point of the lens unit is located on or near the reflective surface. The light emitted by the light source is reflected by the reflective surface and then emitted by the lens unit to form a light pattern unit. The multiple light pattern units are combined to form the light pattern emitted by the light-emitting module.

[0007] One of the two light-emitting modules is a low-beam light-emitting module that can form a low-beam beam pattern, and the other is a high-beam light-emitting module that can form a high-beam beam pattern; the light-emitting surfaces of the two light-emitting modules are connected to form a smooth curved surface.

[0008] Optionally, the lens unit includes a lens, the cross-section and longitudinal section of the light-incident surface of the lens being both curved; or, one of the cross-section and longitudinal section of the light-incident surface of the lens being curved and the other being straight.

[0009] Optionally, the lens unit includes an inner lens and an outer lens arranged sequentially on the light-emitting side of the reflector, with adjacent inner lenses spliced ​​together to form an inner lens of the module, and adjacent outer lenses spliced ​​together to form an outer lens of the module.

[0010] Optionally, the incident surface of the inner lens is used to collimate the emitted light from the reflecting part along the first direction, and the emitting surface of the outer lens is used to collimate the emitted light from the reflecting part along the second direction, wherein the first direction and the second direction are perpendicular.

[0011] Optionally, the cross-sectional curvature of the light-incident surface of the inner lens located on the side of the inner lens in the module is greater than the cross-sectional curvature of the light-incident surface of the inner lens located in the middle of the inner lens in the module.

[0012] Optionally, the reflecting surface can be any one of a parabola, a parabolic-like surface, an ellipsoid, or a ellipsoid, and the reflecting surface can direct the light emitted by the light source to the lens unit approximately parallel to the surface.

[0013] Optionally, the lens unit of one of the low beam output module and the high beam output module includes a lens, and the lens unit of the other includes an inner lens and an outer lens arranged sequentially on the light output side of the reflector.

[0014] Optionally, the lens unit of the low beam output module includes a low beam inner lens and a low beam outer lens sequentially disposed on the light output side of the reflector; the lens unit of the high beam output module includes a high beam inner lens and a high beam outer lens sequentially disposed on the light output side of the reflector; adjacent low beam inner lenses are spliced ​​together to form a low beam module inner lens, and adjacent low beam outer lenses are spliced ​​together to form a low beam module outer lens; adjacent high beam inner lenses are spliced ​​together to form a high beam module inner lens, and adjacent high beam outer lenses are spliced ​​together to form a high beam module outer lens.

[0015] Optionally, the inner lenses of the low beam module and the inner lenses of the high beam module are arranged in a front-to-back direction; or, the inner lenses of the low beam module and the inner lenses of the high beam module are arranged longitudinally and integrally formed.

[0016] In another aspect of this application, a vehicle lamp is provided, including any of the above-described high and low beam integrated lighting devices.

[0017] The beneficial effects of this application include:

[0018] This application provides an integrated high and low beam lighting device and vehicle lamp, which modularizes the optical units of the low beam and high beam output modules. Therefore, during the design, the optical units of each low beam and high beam output module only need to consider the light output requirements of their own modules, making each output module relatively independent, allowing for more flexible light shape modulation without interference. This avoids the need to design a shared lens that simultaneously meets the requirements of both the low beam and high beam output modules. As a result, when adjusting the low beam or high beam output module, it can avoid affecting other output modules, which helps to shorten the development cycle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is one of the structural schematic diagrams of a light-emitting module provided in an embodiment of this application;

[0021] Figure 2 This is a second schematic diagram of the structure of a light-emitting module provided in an embodiment of this application;

[0022] Figure 3 This is the third schematic diagram of the structure of a light-emitting module provided in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a low beam lighting device provided in an embodiment of this application;

[0024] Figure 5 A schematic diagram of the main and low beam patterns provided in this application embodiment;

[0025] Figure 6 A schematic diagram of an auxiliary low beam pattern provided in an embodiment of this application;

[0026] Figure 7 This is one of the structural schematic diagrams of an integrated high and low beam lighting device provided in the embodiments of this application;

[0027] Figure 8 A second schematic diagram of a high and low beam integrated lighting device provided in this application embodiment;

[0028] Figure 9 A third schematic diagram of a high and low beam integrated lighting device provided in this application embodiment;

[0029] Figure 10One of the side views of an integrated high and low beam lighting device provided in the embodiments of this application;

[0030] Figure 11 A second side view of an integrated high and low beam lighting device provided in an embodiment of this application;

[0031] Figure 12 A top view of a low beam output module provided in an embodiment of this application;

[0032] Figure 13 This application provides a schematic diagram of the optical path of a low beam output module.

[0033] Figure 14 This is a schematic diagram of the intermediate beam pattern formed by the third and fourth units of a near beam output module provided in an embodiment of this application;

[0034] Figure 15 This is a schematic diagram of the right half of the light pattern formed by the first unit of a low beam output module provided in an embodiment of this application;

[0035] Figure 16 This is a schematic diagram of the left half of the light pattern formed by the second unit of a low beam output module provided in an embodiment of this application;

[0036] Figure 17 This is a schematic diagram of the light pattern formed by a low beam output module provided in an embodiment of this application;

[0037] Figure 18 This is one of the schematic diagrams of a structure in which the light-emitting surfaces of the outer lenses of adjacent light-emitting modules are connected, according to an embodiment of this application.

[0038] Figure 19 A second schematic diagram of a structure in which the light-emitting surfaces of the outer lenses of adjacent light-emitting modules are connected, provided in an embodiment of this application;

[0039] Figure 20 This is the third schematic diagram of a structure in which the light-emitting surfaces of the outer lenses of adjacent light-emitting modules are connected, as provided in an embodiment of this application.

[0040] Figure 21 An exploded view of an integrated high and low beam lighting device provided in an embodiment of this application.

[0041] Icons: 100 - Light-emitting module; 111 - First unit; 112 - Second unit; 113 - Third unit; 114 - Fourth unit; 101 - Light source; 110 - Optical unit; 120 - Reflector; 121 - Cut-off line structure; 130 - Lens; 141 - Module lens; 142 - Inner lens of the module; 143 - Outer lens of the module; 1431 - Surface shape after connecting the light-emitting surfaces of the outer lenses of adjacent light-emitting modules; 150 - Inner... Lens; 160-Outer lens; 181-Inner low beam lens; 182-Outer low beam lens; 191-Inner high beam lens; 192-Outer high beam lens; 210-Auxiliary low beam module; 220-Main low beam module; 310-Low beam output module; 320-High beam output module; 330-Heat sink; 410-Lens bracket; 420-Inner lens assembly; 430-High beam circuit board; 440-Low beam circuit board; 450-Reflector assembly. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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, not all embodiments. It should be noted that, in the absence of conflict, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0043] In the description of this application, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "perpendicular" and "parallel" do not mean absolutely perpendicular or parallel, but can be approximately perpendicular or approximately parallel.

[0044] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] It should be understood that, for ease of description and simplification, the terms "front" and "rear" refer to the forward and backward direction (y) of the lighting device along the light emission direction, the terms "left" and "right" refer to the left and right direction (x) of the lighting device itself, and the terms "up" and "down" refer to the up and down direction (z) of the lighting device itself, which are generally roughly the same as the forward, backward, left, right, up, and down directions of a vehicle; the terms are based on the orientation or positional relationship shown in the accompanying drawings, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application; moreover, the orientation terms of the lighting device in this application should be understood in conjunction with the actual installation state.

[0046] In this application, the light pattern refers to the projection shape of the light from the vehicle headlights onto a beam distribution screen located 25m directly in front of the vehicle. The cutoff line refers to the boundary line where the light rays projected onto the beam distribution screen show a significant visual change in brightness. The main low beam pattern is the central area of ​​the low beam pattern, with high illuminance, while the auxiliary low beam pattern is the extended area of ​​the low beam pattern, ensuring that the left and right illumination range of the low beam pattern meets the requirements.

[0047] One aspect of the embodiments of this application, such as Figure 1 or Figure 2 As shown, a light-emitting module 100 is provided, including multiple light sources 101 and multiple optical units 110. The light sources 101 are located on the light-incident side of the optical units 110, which facilitates the optical units 110 to modulate the light emitted from the light sources 101. Wherein, as... Figure 1 As shown, multiple optical units 110 are arranged laterally, such as Figure 2 As shown, multiple optical units 110 are arranged vertically.

[0048] like Figure 1 or Figure 2 As shown, each optical unit 110 includes a reflector 120 and a lens unit. The light source 101 corresponds to the reflector 120. The lens unit is located on the light-emitting side of the reflector 120, and the focal point of the lens unit is set on or near the reflector surface of the reflector 120 so as to make the image clear. Thus, after the light source 101 emits light, the light is reflected by the reflector surface of the reflector 120 and then enters the lens unit. After being modulated by the lens unit, the light is finally emitted to form a light pattern unit.

[0049] Therefore, the multiple optical units 110 of the light-emitting module 100 can form multiple light-shaped units, and the multiple light-shaped units are combined to form the light-emitting light pattern of the light-emitting module 100.

[0050] by Figure 1Taking the light-emitting module 100 shown as an example: the light-emitting module 100 includes four horizontally (along the x-direction) arranged optical units 110. Each optical unit 110 has a reflector 120 and a lens unit. Each optical unit 110, together with the light source 101, can emit light to form a light pattern unit. Finally, the four light pattern units are combined horizontally to form the light-emitting light pattern of the light-emitting module 100.

[0051] by Figure 2 Taking the light-emitting module 100 shown as an example: The light-emitting module 100 includes two vertically arranged optical units 110 (along the z-direction). Each optical unit 110 has a reflector 120 and a lens unit. Each optical unit 110, in conjunction with the light source 101, can emit light to form a light pattern unit. Finally, the two light pattern units are combined to form the light-emitting light pattern of the light-emitting module 100.

[0052] In summary, by modularizing the light-emitting module 100 (multiple light sources 101 and multiple optical units 110), the optical units 110 in the light-emitting module 100 become relatively independent, and their light shape modulation is more flexible. This makes it easier to adjust only some optical units 110 when making local adjustments to the emitted light shape, avoiding the need to adjust the rest of the optical units 110. Compared with directly setting a single large lens in the light-emitting module 100, this application helps to shorten the development cycle and achieve more refined light shape adjustment, thereby improving the accuracy of achieving the ideal light shape.

[0053] It is understood that in the light-emitting module 100 of this application, the multiple light sources 101 and the multiple optical units 110 can be in one-to-one correspondence or not, as long as each optical unit 110 can receive the light emitted by the light source 101 and modulate it to form a light shape unit.

[0054] Furthermore, the multiple optical units 110 are arranged in a horizontal or vertical direction, which may be approximately horizontal or vertical, but does not refer to absolute horizontal or absolute vertical. In specific arrangement, the direction of light emission from the illumination surface of the light-emitting device using the light-emitting module 100 (e.g., a straight surface, a curved surface, etc.) and the light distribution requirements can be adjusted.

[0055] Furthermore, when the focal point of the lens unit is located on or near the reflective surface of the reflective part 120, including but not limited to the focal point being located at the boundary of the reflective surface, near the boundary, or not at the boundary, for example, when the focal point is located at or near the boundary of the reflective surface, the light-emitting module 100 can be applied to a low beam lighting device; when the focal point is located on or near the reflective surface (excluding the boundary of the reflective surface or near the boundary), the light-emitting module 100 can be applied to a high beam lighting device.

[0056] Optionally, the lens unit includes a lens 130, which firstly helps to miniaturize the lens unit, and secondly, prevents more light from being refracted to the outside, thereby reducing light loss. For example... Figures 1 to 2 As shown, the cross-section (along the x-direction) of the light-incident surface and the longitudinal section (along the z-direction) of the light-exiting surface of lens 130 are both curves. Therefore, after light rays pass through the reflecting surface and enter lens 130, bidirectional collimation can be achieved by the light-incident and light-exiting surfaces of lens 130, thereby obtaining a better light pattern effect in the light-exiting direction (along the y-direction). Of course, in another embodiment, when the lens unit includes one lens 130, one of the cross-section and longitudinal section of the light-incident surface of lens 130 is a curve, and the other is a straight line. Therefore, after light rays pass through the reflecting surface and enter lens 130, unidirectional collimation can be achieved by the light-incident surface of lens 130, and the collimation direction can be transverse or longitudinal. It is also possible that in another embodiment, both the cross-section and longitudinal section of the light-incident surface of the lens are curves.

[0057] Optionally, the lenses 130 of two adjacent lens units can be joined together to form a module lens 141, for example... Figure 1 Lenses 130 arranged horizontally are sequentially spliced ​​together to form a module lens 141, for example... Figure 2 The vertically arranged lenses 130 are sequentially spliced ​​together to form a module lens 141.

[0058] Optionally, the lens unit may also include multiple lenses, thereby enabling the light to be modulated multiple times, which helps to obtain a better light pattern. For example Figure 3 As shown, the optical units 110 are arranged horizontally (along the x-direction). The lens unit may further include an inner lens 150 and an outer lens 160. The outer lens 160 is disposed on the light-emitting side of the reflector 120, while the inner lens 150 is located between the reflector 120 and the outer lens 160. Thus, light rays pass through the reflector 120 and first enter the inner lens 150, then exit from the inner lens 150 to the outer lens 160 and finally exit to form the light pattern unit. It should be understood that in other embodiments, when the optical units 110 are arranged vertically (along the z-direction), the lens unit may still include the inner lens 150 and the outer lens 160. The arrangement is different from the horizontal arrangement embodiment only in the direction of arrangement. Therefore, the arrangement and understanding can be referred to, and will not be described again.

[0059] The inner lens 150 in the lens unit is along the optical axis (i.e.) Figure 3 The position of the inner lens 150 (in the y-direction) can be determined based on its focal length. Furthermore, increasing the focal length of the inner lens 150 will increase the brightness of the light pattern, but decrease its size. The focal length can be flexibly adjusted according to the light pattern and customer requirements.

[0060] When the lens unit achieves collimation, the light rays emitted from the collimating reflector 120 can be collimated along the first direction from the light-incident surface of the inner lens 150, and the light rays emitted from the collimating reflector 120 can be collimated along the second direction from the light-exit surface of the outer lens 160. The first and second directions are perpendicular. Therefore, bidirectional collimation can be achieved by combining the inner lens 150 and the outer lens 160. Specifically, as follows... Figure 3 As shown, the first direction can be the x-direction, the second direction can be the z-direction, the cross-section of the light-incident surface of the inner lens 150 along the x-direction can be a curve, and the longitudinal section along the z-direction can be a straight line, and the longitudinal section of the light-exit surface of the outer lens 160 along the z-direction can be a curve, and the cross-section along the x-direction can be a straight line.

[0061] Optionally, adjacent inner lenses 150 in multiple optical units 110 can be spliced ​​together to form an inner lens 142 of the module, and adjacent outer lenses 160 in multiple optical units 110 can be spliced ​​together to form an outer lens 143 of the module. For example Figure 3 As shown, four inner lenses 150 are sequentially spliced ​​in the horizontal direction to form a module inner lens 142, and four outer lenses 160 are spliced ​​in the horizontal direction to form a module outer lens 143.

[0062] Optionally, the light-emitting surfaces of multiple lens units are connected to form a smooth light-emitting surface of the light-emitting module 100. For example... Figure 2 As shown, when the lens unit includes a lens 130, the light-emitting surface of the module lens 141 arranged vertically can be a smooth curved surface. Of course, in other embodiments, the light-emitting surface of the module lens 141 can also be a smooth flat surface. Figure 3 As shown, the light-emitting surface of the inner lens 142 can be a smooth plane, and the light-incident surface and the light-emitting surface of the outer lens 143 can be smooth curved surfaces.

[0063] It should be understood that when the incident and / or emitting surfaces of the spliced ​​module outer lens 143 are smooth curved or flat, and the module outer lens 143 is integrally formed, there may be no obvious boundary lines between units in the actual product. For example... Figure 3 In the module, the light-incident surface of the outer lens 143 is a smooth curved surface, and in actual products, it may not have obvious boundary lines between units. Figure 3 The dashed line on the light-incident surface of the outer lens 143 of the module is merely a virtual line for ease of understanding the unit division and can be omitted in the actual product. Similarly, the light-incident and light-exit surfaces of the inner lens 142 of the module are defined in the same way.

[0064] Optional, such as Figures 1 to 3As shown, the reflecting surface of the reflecting part 120 can be any one of a parabola, a parabolic-like surface, an ellipsoid, or an ellipsoid. A parabolic-like surface is a curved surface that approximates a parabola, and an ellipsoid is a curved surface that approximates an ellipsoid. Regardless of the type of curved surface, as long as the reflecting surface can project the light emitted by the light source 101 to the lens unit in a roughly parallel manner, it will help improve the light utilization rate and increase the illumination brightness.

[0065] The light-emitting module 100 provided in this application can be used in a lighting device. The light-emitting module 100 can be any module in the lighting device, such as high beam, low beam, auxiliary high beam, corner light, fog light, etc. When the lighting device includes multiple light-emitting modules 100, it can realize multiple lighting functions such as low beam and high beam, low beam and ADB high beam, main low beam and auxiliary low beam. According to different lighting functions, the lighting device can be divided into low beam lighting device, high beam lighting device, high beam and low beam integrated lighting device, etc. This application does not make specific limitations on it.

[0066] By applying the aforementioned light-emitting module 100, the modular nature of the light-emitting module 100 allows for more flexible light pattern modulation of each light-emitting module 100 in the lighting device, which helps to shorten the development cycle and enables fine-grained light pattern adjustment within the light-emitting module 100, improving the accuracy of achieving the ideal light pattern. Furthermore, when the lighting device includes multiple light-emitting modules 100, each light-emitting module 100 can operate independently. That is, during design, the optical units 110 within each light-emitting module 100 only need to consider the light emission requirements of their own module. This allows for more flexible light pattern modulation of each light-emitting module 100 without interference, avoiding the need to design a single large lens that simultaneously meets the light emission requirements of multiple light-emitting modules 100. When adjusting the light pattern of some modules among multiple light-emitting modules 100, only the light-emitting module 100 requiring adjustment needs to be adjusted, further shortening the development cycle.

[0067] Furthermore, since the two adjacent light-emitting modules 100 are independent of each other, there is no problem of sharing. Therefore, it is possible to avoid setting up devices that divide the light pattern between the two, such as light-blocking structures. While saving costs, the connection between the two light-emitting patterns corresponding to the two adjacent light-emitting modules 100 can be improved by flexibly adjusting, avoiding dark areas or excessively high brightness at the connection between the two adjacent light-emitting patterns.

[0068] For ease of description, the low beam lighting device, the high beam lighting device, and the integrated high and low beam lighting device will be described schematically below with reference to the accompanying drawings.

[0069] Another aspect of the embodiments of this application, such as Figure 1 , Figure 3 or Figure 4As shown, a low beam illumination device is provided, including at least one light-emitting module 100 as described above. The focal point of the lens unit is set at or near the boundary of the reflective surface of the reflective part 120 near the light source 101. This allows the boundary of the reflective surface or the vicinity of the boundary to be used as a cutoff line structure 121, thereby enabling the light-emitting module 100 to emit a low beam pattern with a bright and dark cutoff line.

[0070] Optional, such as Figure 1 As shown, the low beam illumination device includes a light-emitting module 100, which has a plurality of optical units 110 arranged laterally. Each optical unit 110 includes a reflector 120 and a lens unit, and the lens unit includes a lens 130. Thus, the light reflected by the reflector 120 passes through the plurality of lens units to form a plurality of light pattern units. The plurality of light pattern units can be combined to form a low beam pattern.

[0071] Optional, such as Figure 3 As shown, the low beam illumination device includes a light-emitting module 100, which has a plurality of optical units 110 arranged laterally. Each optical unit 110 includes a reflector 120 and a lens unit, and the lens unit includes an inner lens 150 and an outer lens 160. Thus, the light reflected by the reflector 120 passes through the plurality of lens units to form a plurality of light pattern units, and the plurality of light pattern units can be combined to form a low beam light pattern.

[0072] Optional, such as Figures 1 to 4 As shown, each reflector 120 corresponds to a lens unit. Of course, in other embodiments, multiple reflectors 120 may correspond to one lens unit; for example, see [reference needed]. Figure 8 In the high beam output module 320, multiple reflectors 120 are configured to correspond to one lens unit.

[0073] Optionally, the low beam illumination device may also include multiple light-emitting modules 100, thereby using the light patterns formed by the multiple light-emitting modules 100 respectively as the low beam illumination pattern of the device after superposition.

[0074] For example Figure 4 As shown, the low beam illumination device includes two light-emitting modules 100: a main low beam module 220 and an auxiliary low beam module 210. For ease of understanding, the low beam illumination device is divided into the main low beam module 220 and the auxiliary low beam module 210 by a dotted line. The main low beam module 220 emits light to form the main low beam pattern, and the auxiliary low beam module 210 emits light to form the auxiliary low beam pattern. Specifically:

[0075] Figure 4In the main low beam module 220, multiple light sources 101 and multiple optical units 110 are included. Each optical unit 110 includes a reflector 120 and a lens unit. Each lens unit includes an inner lens 150 collimated along the x-direction and an outer lens 160 collimated along the z-direction. Multiple inner lenses 150 are joined to form an inner lens 142, and multiple outer lenses 160 are joined to form an outer lens 143. Thus, as... Figure 5 As shown, for the main and near beam module 220: the light source 101 emits along the y direction after passing through multiple optical units 110 to form multiple light pattern units, and the multiple light pattern units are combined to form a main and near beam pattern with a bright and dark cutoff line.

[0076] Figure 4 In the auxiliary low beam module 210, multiple light sources 101 and multiple optical units 110 are included. Each optical unit 110 includes a reflector 120 and a lens unit. Each lens unit includes an inner lens 150 collimated along the x-direction and an outer lens 160 collimated along the z-direction. Multiple inner lenses 150 are joined to form an inner lens 142, and multiple outer lenses 160 are joined to form an outer lens 143. Thus, as... Figure 6 As shown, for the auxiliary low beam module 210: the light source 101 is emitted along the y direction after passing through multiple optical units 110 to form multiple light pattern units, and the multiple light pattern units are combined to form an auxiliary low beam pattern with a bright and dark cutoff line.

[0077] By Figure 5 The main near beam pattern and Figure 6 The low beam pattern of the low beam illumination device can be obtained by superimposing the auxiliary low beam pattern shown. The main low beam pattern can improve the center brightness of the low beam pattern, and the auxiliary low beam pattern can make the low beam pattern better broadened.

[0078] Of course, the multiple light-emitting modules 100 can be arranged horizontally or vertically. This application does not impose any special restrictions on them and they can be reasonably set according to the needs.

[0079] Optionally, multiple optical units 110 are arranged laterally, and the arrangement direction of the light-emitting module 100 is parallel to the arrangement direction of the optical units 110. For example... Figure 4 As shown, the optical units 110 in the main low beam module 220 and the auxiliary low beam module 210 are arranged in the horizontal direction (along the x direction), and the main low beam module 220 and the auxiliary low beam module 210 are also arranged in the horizontal direction (along the x direction).

[0080] Optionally, multiple optical units 110 are arranged horizontally, and the arrangement direction of the light-emitting module 100 is perpendicular to the arrangement direction of the optical units 110. For example, the optical units 110 in the main low beam module 220 and the auxiliary low beam module 210 are arranged horizontally, and the main low beam module 220 and the auxiliary low beam module 210 can also be arranged vertically.

[0081] Optionally, adjacent light-emitting modules 100 in the plurality of light-emitting modules 100 may not be spliced ​​together, that is, they may have a certain spacing, for example Figure 4 As shown, there is a gap between the main low beam module 220 and the auxiliary low beam module 210.

[0082] Optionally, the light-emitting surfaces of two adjacent light-emitting modules 100 in the plurality of light-emitting modules 100 are connected to form a smooth curved surface or a plane, for example, by connecting the light-emitting surfaces of two adjacent light-emitting modules 100. Figure 4 There is no gap between the main low beam module 220 and the auxiliary low beam module 210, so that the light-emitting surfaces of the outer lens 143 or the module lens 141 in the main low beam module 220 and the auxiliary low beam module 210 are connected, thereby forming a smooth curved surface or a plane.

[0083] In another aspect of this application, a high beam lighting device is provided, including at least one of the above-described light-emitting modules 100. The focal point of the lens unit can be set on or near the reflective surface (except at or near the boundary of the reflective surface), thereby avoiding obstruction of the formed high beam pattern.

[0084] The high beam lighting device includes a light-emitting module 100, for example Figure 7 In the middle, the light-emitting module 100 is located below the dotted line and serves as the high beam light-emitting module 320. The high beam module has multiple optical units 110 arranged horizontally. Each optical unit 110 includes a reflector 120 and a lens unit. The lens unit includes a lens 130. Thus, the light reflected by the reflector 120 passes through the lens unit to form multiple light pattern units. The multiple light pattern units can be combined to form a high beam light pattern.

[0085] The high beam lighting device includes a light-emitting module 100, for example Figure 9 In the middle, the light-emitting module 100 is located below the dotted line and serves as the high beam light-emitting module 320. The high beam module has multiple optical units 110 arranged horizontally. Each optical unit 110 includes a reflector 120 and a lens unit. The lens unit includes a high beam inner lens 191 and a high beam outer lens 192. Thus, the light reflected by the reflector 120 forms multiple light pattern units through the lens unit. The multiple light pattern units can be combined to form a high beam light pattern.

[0086] Of course, in other embodiments, the high beam lighting device may also include two or more light-emitting modules 100. When two or more light-emitting modules 100 are arranged, they may be arranged horizontally or vertically.

[0087] Optional, such as Figure 7 or Figure 9 As shown, the reflective surface of the high beam module corresponds one-to-one with the lens unit. Of course, in other embodiments, for example... Figure 8In the middle, multiple reflective surfaces in the high beam output module 320 correspond to a lens unit for ADB high beam illumination.

[0088] Optionally, in the high beam lighting device, two adjacent light-emitting modules 100 may not be spliced ​​together, that is, they may have a certain spacing.

[0089] Optionally, the light-emitting surfaces of two adjacent light-emitting modules 100 in the high beam lighting device are connected to form a smooth curved surface or a plane.

[0090] Another aspect of the embodiments of this application provides a high and low beam integrated lighting device, such as... Figures 7 to 11 As shown, the integrated high and low beam lighting device includes two light-emitting modules 100 as described above. One light-emitting module 100 is a low beam light-emitting module 310 capable of forming a low beam pattern, and the other light-emitting module 100 is a high beam light-emitting module 320 capable of forming a high beam pattern.

[0091] For example Figures 7 to 11 As shown, the integrated high and low beam lighting device is divided into a low beam output module 310 and a high beam output module 320 by the dashed line.

[0092] Optionally, the lens unit of at least one of the low beam output module 310 and the high beam output module 320 includes a lens 130. For example Figure 7 As shown, the low beam emission module 310 includes multiple light sources 101 and multiple optical units 110. Each optical unit 110 includes a reflector 120 and a lens unit. Each lens unit includes a bidirectional collimating lens 130. Multiple lenses 130 are joined to form a module lens 141. Therefore, for the low beam emission module 310: the light sources 101, after passing through the multiple optical units 110, emit light along the y-direction to form multiple beam pattern units. These multiple beam pattern units, when combined, form a low beam pattern with a cutoff line between light and dark areas. (Continuing to refer to...) Figure 7 As shown, the high beam output module 320 includes multiple light sources 101 and multiple optical units 110. The multiple optical units 110 include a reflector 120 and a lens unit. The lens unit includes a bidirectional collimating lens 130. The multiple lenses 130 are spliced ​​together to form a module lens 141. Thus, for the high beam output module 320: the light source 101 emits light along the y-direction after passing through the multiple optical units 110 to form multiple light pattern units. The multiple light pattern units are combined to form the high beam pattern.

[0093] Optionally, the lens unit of one of the low beam output module 310 and the high beam output module 320 includes a lens 130, and the lens unit of the other includes an inner lens 150 and an outer lens 160 sequentially disposed on the light-emitting side of the reflector 120. For example Figure 8As shown, the near beam emission module 310 includes multiple light sources 101 and multiple optical units 110. Each optical unit 110 includes a reflector 120 and a lens unit. Each lens unit includes an inner lens 150 collimated along the x-direction and an outer lens 160 collimated along the z-direction. Multiple inner lenses 150 are joined to form an inner lens 142, and multiple outer lenses 160 are joined to form an outer lens 143. Thus, for the near beam emission module 310: the light source 101, after passing through multiple optical units 110, emits light along the y-direction to form multiple beam pattern units. These multiple beam pattern units combine to form a near beam pattern with a cutoff line between light and dark areas. (Continuing to refer to...) Figure 8 As shown, the high beam output module 320 includes multiple light sources 101 and multiple optical units 110. Each optical unit 110 includes a reflector 120 and a lens unit. Each lens unit includes a lens 130 that collimates bidirectionally along the x and z directions. Multiple lenses 130 are joined together to form a module lens 141. Therefore, for the high beam output module 320: the light sources 101, after passing through the multiple optical units 110, emit light along the y direction to form multiple beam pattern units. These multiple beam pattern units combine to form the high beam pattern.

[0094] Optional, such as Figure 9 As shown, the lens unit of the low beam output module 310 includes a low beam inner lens 181 and a low beam outer lens 182 sequentially disposed on the light-emitting side of the reflector 120; the lens unit of the high beam output module 320 includes a high beam inner lens 191 and a high beam outer lens 192 sequentially disposed on the light-emitting side of the reflector 120; adjacent low beam inner lenses 181 are spliced ​​to form a low beam inner lens 181, and adjacent low beam outer lenses 182 are spliced ​​to form a low beam module outer lens 143; adjacent high beam inner lenses 191 are spliced ​​to form a high beam inner lens 191, and adjacent high beam outer lenses 192 are spliced ​​to form a high beam module outer lens 143.

[0095] Optional, such as Figures 7 to 11 As shown, the low beam output module 310 and the high beam output module 320 are arranged longitudinally (along the z-direction).

[0096] Optionally, the low-beam inner lens 181 and the high-beam inner lens 191 are arranged front to back along the front-back direction (along the y-direction), for example... Figure 10 As shown, the low-beam inner lens 181 is positioned rearward, and the high-beam inner lens 191 is positioned forward. Their placement can be determined based on their respective focal lengths. It's important to understand that while a larger focal length increases brightness, it also decreases the size of the beam pattern. Therefore, a suitable focal length can be set based on the beam pattern and customer requirements. Alternatively, in another embodiment, the low-beam inner lens 181 and the high-beam inner lens 191 are arranged longitudinally (along the z-direction) and integrally formed, meaning they are spliced ​​together longitudinally.

[0097] Optionally, to dissipate heat from the light source 101, a heat sink 330 can be provided between the light sources 101 of two adjacent light-emitting modules 100. By utilizing the opposite sides of the heat sink 330, heat dissipation can be achieved for the light sources 101 of the two light-emitting modules 100 respectively. Thus, the space between the light sources 101 of the two light-emitting modules 100 can be fully utilized, reducing the volume. For example... Figure 11 As shown, a heat sink 330 can be provided between the light source 101 of the low beam output module 310 and the high beam output module 320. By utilizing the opposite sides of the heat sink 330, heat can be dissipated from the light source 101 of the two output modules 100 respectively.

[0098] Optionally, to improve the heat dissipation capability of the light source 101, a corresponding heat sink 330 can be provided for each light source 101 of the light-emitting module 100, for example... Figure 21 As shown, a heat sink 330 for dissipating heat from the light source 101 of the low beam output module 310 is provided on the side of the low beam output module 310 away from the high beam output module 320. Similarly, a heat sink 330 for dissipating heat from the light source 101 of the high beam output module 320 is provided on the side of the high beam output module 320 away from the low beam output module 310.

[0099] Optional, such as Figure 12 As shown, the near beam output module 310 has four light sources 101 and four optical units 110. The four optical units 110 are configured to... Figure 12 The four dashed boxes shown are for illustrative purposes only. They are the first unit 111, the second unit 112, the third unit 113, and the fourth unit 114 arranged along the x-direction, with the light emission direction being the y-direction. The first unit 111 and the second unit 112 are the two units closest to the edge, while the third unit 113 and the fourth unit 114 are the two units closest to the middle.

[0100] To obtain better near beam pattern, the inner lenses 150 of different optical units 110 in the near beam output module 310 can be configured differently, for example... Figure 12 In the middle, the cross-sectional curvature of the light-incident surface of the inner lens 150 of the first unit 111 and the second unit 112 near the edge is greater than the cross-sectional curvature of the light-incident surface of the inner lens 150 of the third unit 113 and the fourth unit 114 near the middle. Therefore, combined with Figure 13 As shown, when the light reflected by the reflective surface enters the near-light inner lens 181, some of the light rays entering the first unit 111 and the second unit 112 can undergo refraction at a larger angle, thereby expanding the irradiated area and obtaining a light ray corresponding to the first unit 111. Figure 15 The right half of the light shape shown and the corresponding second unit 112 are as follows: Figure 16The left half of the light pattern shown makes the light patterns incident on the third unit 113 and the fourth unit 114 form as follows: Figure 14 The intermediate light shape shown is obtained by superimposing the three elements as follows: Figure 17 The near-beam shape shown is well-broadened. Meanwhile, as... Figure 13 As shown, the light rays incident on the light-incident surfaces (inner lenses 150 of the first unit 111 and the second unit 112) with large cross-sectional curvatures on both sides of the near-light inner lens 181 will cross in the horizontal direction (x direction) due to the large-angle refraction. When the module outer lens 143 is placed at a certain point in the light path during the crossing process, the light can pass through without a very wide module outer lens 143, and the left and right openings of the lens can be further reduced.

[0101] like Figure 18 or Figure 19 As shown, the surface shape 1431 of the connected light-emitting surfaces of the outer lenses of adjacent light-emitting modules can be a convex or concave curved surface, thereby improving the continuity of the appearance. Of course, the surface shape 1431 of the connected light-emitting surfaces of the outer lenses of adjacent light-emitting modules can also be changed according to requirements, for example... Figure 20 As shown, the surface shape 1431 after the light-emitting surfaces of the outer lenses of adjacent light-emitting modules are connected can also be a plane.

[0102] Optional, such as Figure 21 As shown, the integrated high and low beam lighting device includes a reflector assembly 450 with a reflector 120 fixed thereon, a low beam circuit board 440 integrating a low beam output module 310 light source 101, a high beam circuit board 430 integrating a high beam output module 320 light source 101, an inner lens assembly 420 with a low beam inner lens 181 and a high beam inner lens 191, a lens bracket 410, and a connecting assembly of a low beam outer lens 182 and a high beam outer lens 192. These components can be assembled together along the optical path direction.

[0103] In another aspect, this application provides a vehicle light, including the aforementioned low beam lighting device, or the aforementioned high beam lighting device, or the aforementioned integrated high and low beam lighting device. The vehicle light of this application can be applied to vehicles such as bicycles, motorcycles, automobiles, ships, and aircraft; this application does not limit its application to these vehicles.

[0104] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lighting device integrating high and low beams, characterized in that, The light-emitting module includes two longitudinally arranged light-emitting modules. Each light-emitting module includes multiple light sources and multiple optical units. The multiple optical units are arranged laterally. Each optical unit includes a reflective part and a lens unit located on the light-emitting side of the reflective part. The light sources are correspondingly arranged with the reflective parts. The reflective part has a reflective surface. The focal point of the lens unit is set on or near the reflective surface. The light emitted from the light source is reflected by the reflective surface and then emitted through the lens unit to form a light pattern unit. The multiple light pattern units are combined to form the light pattern emitted by the light-emitting module. One of the two light-emitting modules is a low-beam light-emitting module capable of forming a low-beam beam pattern, and the other is a high-beam light-emitting module capable of forming a high-beam beam pattern. The light-emitting surfaces of the two light-emitting modules are connected to form a smooth curved surface; At least one of the lens units in the light-emitting module includes an inner lens and an outer lens arranged sequentially on the light-emitting side of the reflector. The light emitted from the light source is reflected by the reflective surface and first enters the inner lens, then exits from the inner lens to the outer lens and then exits to form a light pattern unit. Adjacent inner lenses are spliced ​​together to form a module inner lens, and adjacent outer lenses are spliced ​​together to form a module outer lens. The light-incident surface of the inner lens of the module is curved, and the light-exiting surface of the inner lens of the module is flat; the light-incident surface of the inner lens is used to collimate the light emitted from the reflective part along a first direction, and the light-exiting surface of the outer lens is used to collimate the light emitted from the reflective part along a second direction, wherein the first direction and the second direction are perpendicular. The cross-sectional curvature of the light-incident surface of the inner lens located on the side of the inner lens in the module is greater than the cross-sectional curvature of the light-incident surface of the inner lens located in the middle of the inner lens in the module. Light rays incident through the incident surface with a large cross-sectional curvature located on the side of the inner lens of the module are refracted and intersect in the horizontal direction. The outer lens of the module is placed at the optical path during the light ray intersection process.

2. The integrated high and low beam lighting device as described in claim 1, characterized in that, The reflecting surface is any one of a parabola, a parabolic-like surface, an ellipsoid, and a ellipsoid-like surface, and the reflecting surface is capable of directing the light emitted by the light source to the lens unit approximately parallel to its direction.

3. The integrated high and low beam lighting device as described in any one of claims 1 to 2, characterized in that, The lens unit of one of the low beam output module and the high beam output module includes a lens, and the lens unit of the other includes an inner lens and an outer lens arranged sequentially on the light output side of the reflector.

4. The integrated high and low beam lighting device as described in any one of claims 1 to 2, characterized in that, The lens unit of the low beam output module includes a low beam inner lens and a low beam outer lens sequentially disposed on the light-emitting side of the reflector; the lens unit of the high beam output module includes a high beam inner lens and a high beam outer lens sequentially disposed on the light-emitting side of the reflector; adjacent low beam inner lenses are spliced ​​to form a low beam module inner lens, and adjacent low beam outer lenses are spliced ​​to form a low beam module outer lens; adjacent high beam inner lenses are spliced ​​to form a high beam module inner lens, and adjacent high beam outer lenses are spliced ​​to form a high beam module outer lens.

5. The integrated high and low beam lighting device as described in claim 4, characterized in that, The low beam module inner lens and the high beam module inner lens are arranged one after the other in the front-to-back direction; or, the low beam module inner lens and the high beam module inner lens are arranged longitudinally and integrally formed.

6. A vehicle light, characterized in that, Includes the integrated high and low beam lighting device as described in any one of claims 1 to 5.

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