High-beam and low-beam integrated module and vehicle lamp
By tilting the mounting planes of the low beam and high beam in the integrated high and low beam module to form an angle with the optical axis of the lens, the problem of stray light from the LED light source affecting the quality of beam pattern formation is solved, achieving the formation of high-quality beam patterns and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2026-03-10
AI Technical Summary
In existing high and low beam integrated modules, stray light from the LED light source appears directly in the dark area above the beam pattern, affecting the beam pattern formation quality.
By tilting the mounting plane of the low beam to form a first angle with the optical axis of the first lens, the direct light from the low beam source does not shine into the lens along the optical axis, thus preventing stray light from entering the dark area of the beam pattern. The second angle is used to process the direct light from the high beam source, ensuring that it does not enter the dark area of the beam pattern.
It effectively eliminates or reduces the influence of stray light generated by direct light source on the light pattern, ensuring the quality of light pattern forming, while simplifying the structure, reducing the number of parts, and lowering production costs.
Smart Images
Figure CN121631202A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to lighting modules, specifically to an integrated high and low beam module and vehicle lights. Background Technology
[0002] Currently, more and more car headlights are using integrated high and low beam modules. These modules combine both high and low beam functions, which greatly reduces the number of parts compared to the existing separate high and low beam modules.
[0003] In existing integrated high and low beam modules, the high and low beam light sources use LED light source 100, see [link / reference]. Figure 1 The theoretical light emission direction of an LED light source is along the Z-axis, which allows for excellent control over the light pattern shape. Therefore, when arranging LED light sources, the optical axis of the LED light source is aligned with the reflective surface of the reflective element, so that the light reflected by the reflective surface is projected by the lens to form the light pattern; however, see... Figure 2 The actual light emission direction of an LED light source differs somewhat from its theoretical light emission direction. When the theoretical light emission direction of the LED light source is perpendicular to the system's light emission direction, stray light biased towards the Y-axis is generated due to the direct illumination from the LED light source. This stray light will bypass reflection by the emitting element and be directly projected out by the lens. (See [link to relevant documentation]). Figure 3 and Figure 4 In contrast, the stray light will appear directly in the dark area above the light pattern, thus affecting the quality of the light pattern formation.
[0004] Therefore, it is necessary to design an integrated high and low beam module to overcome or alleviate the above-mentioned technical problems. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to provide an integrated high and low beam module and vehicle light, which can eliminate or reduce the influence of stray light generated by direct light source on the light pattern and ensure the quality of light pattern formation.
[0006] To address the aforementioned technical problems, the first aspect of the present invention provides an integrated high and low beam module, comprising a first lens, a low beam module, a high beam module, and a mounting portion.
[0007] The low beam module includes a low beam source and a low beam reflector. The first beam emitted from the low beam source is adapted to be converged by the low beam reflector and then projected by the first lens to form a low beam pattern.
[0008] The high beam module includes a high beam source and a high beam reflector. The second beam emitted from the high beam source is adapted to be converged by the high beam reflector and then projected by the first lens to form a high beam pattern.
[0009] The mounting portion includes a low beam mounting plane for mounting the low beam light source and a high beam mounting plane for mounting the high beam light source. The low beam mounting plane forms a first angle with the optical axis of the first lens, so that the direct light rays of the low beam light source do not strike the first lens along the optical axis direction, thereby preventing the direct light rays of the low beam light source from falling into the dark area of the low beam pattern.
[0010] In some specific embodiments, the mounting plane of the high beam forms a second angle with the optical axis of the first lens, so that the direct light from the high beam source does not shine into the first lens along the optical axis direction of the first lens, so that the direct light from the high beam source does not fall into the dark area of the high beam pattern.
[0011] In some specific embodiments, the first included angle is configured such that direct rays emitted by the low beam source parallel to the low beam mounting plane do not enter the light-incident surface of the first lens, or such that direct rays emitted by the low beam source parallel to the low beam mounting plane fall into the bright area of the low beam pattern after being transmitted through the first lens; the second included angle is configured such that direct rays emitted by the high beam source parallel to the high beam mounting plane do not enter the light-incident surface of the first lens, or such that direct rays emitted by the high beam source parallel to the high beam mounting plane fall into the bright area of the high beam pattern after being transmitted through the first lens.
[0012] In some specific embodiments, a second lens is also included, which comprises a near-light inner lens and a far-light inner lens.
[0013] The first beam converged by the near beam reflector is adapted to be transmitted through the near beam inner lens and then projected through the first lens to form the near beam pattern. The first included angle is configured such that the direct light rays emitted by the near beam source parallel to the near beam mounting plane do not enter the light-incident surface of the near beam inner lens, or so that the direct light rays emitted by the near beam source parallel to the near beam mounting plane do not enter the light-incident surface of the first lens after being transmitted through the near beam inner lens, or so that the direct light rays emitted by the near beam source parallel to the near beam mounting plane fall into the bright area of the near beam pattern after being transmitted sequentially through the near beam inner lens and the first lens.
[0014] The second beam, converged by the high beam reflecting element, is adapted to be transmitted through the high beam inner lens and then projected through the first lens to form the high beam pattern. The second included angle is configured such that the direct light rays emitted by the high beam source parallel to the high beam mounting plane do not enter the light-incident surface of the high beam inner lens, or that the direct light rays emitted by the high beam source parallel to the high beam mounting plane do not enter the light-incident surface of the first lens after being transmitted through the high beam inner lens, or that the direct light rays emitted by the high beam source parallel to the high beam mounting plane fall into the bright area of the high beam pattern after being transmitted sequentially through the high beam inner lens and the first lens.
[0015] In some specific embodiments, the near-beam inner lens and the far-beam inner lens are integrally formed.
[0016] In some specific embodiments, a heat sink is also included, and mounting edges for mounting on the heat sink are formed on both sides of the second lens. A first error-proof structure is provided between the mounting edges and the heat sink. The first error-proof structure includes a positioning hole and a positioning post that cooperate with each other.
[0017] In some specific embodiments, the heat sink has a first mounting surface for mounting the low beam module and a second mounting surface for mounting the high beam module, and the included angle between the first mounting surface and the second mounting surface is set to correspond to the first included angle and the second included angle.
[0018] In some specific embodiments, the low beam module further includes a low beam circuit board for mounting the low beam light source, the low beam circuit board being mounted on the first mounting surface, and the surface on the low beam circuit board where the low beam light source is located being the low beam mounting plane; the high beam module further includes a high beam circuit board for mounting the high beam light source, the high beam circuit board being mounted on the second mounting surface, and the surface on the high beam circuit board where the high beam light source is located being the high beam mounting plane.
[0019] In some specific embodiments, the near beam reflector and the second lens are provided with a second error-proofing structure, and / or the far beam reflector and the second lens are provided with a second error-proofing structure, the second error-proofing structure including a positioning hole and a positioning boss that cooperate with each other.
[0020] In some specific embodiments, the angle of the first included angle is greater than 0° and less than or equal to 25°; and / or, the angle of the second included angle is greater than or equal to 0° and less than or equal to 15°.
[0021] In some specific embodiments, the low beam reflector is a reflector, and the reflector is provided with a reflective boundary corresponding to the shape of the light and dark cutoff line of the low beam pattern. The reflective boundary is located at or near the focal point of the lens for transmitting the first beam converged by the low beam reflector. The reflective boundary is located at the end of the reflector closer to the low beam source, and the first included angle is configured such that the low beam mounting plane does not obstruct the first beam reflected by the reflective surface of the reflector located above the reflective boundary.
[0022] A second aspect of the present invention provides a vehicle headlight having the aforementioned integrated high and low beam module.
[0023] Through the above technical solution, the high and low beam integrated module of the present invention tilts the low beam mounting plane so that it forms a first angle with the optical axis of the first lens. This effectively prevents the direct light from the low beam source from shining along the optical axis of the first lens towards the first lens, thus avoiding stray light generated by the direct light from the low beam source from shining along the optical axis of the first lens towards the light incident surface of the first lens. This prevents the stray light from falling into the dark area of the low beam pattern, eliminating or reducing the influence of stray light generated by the direct light source on the beam pattern, and ensuring the quality of beam pattern formation. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the theoretical light emission direction of an LED light source;
[0025] Figure 2 This is a schematic diagram of the actual light emission direction of the LED light source;
[0026] Figure 3 This is a schematic diagram of the low beam pattern without stray light interference;
[0027] Figure 4 This is a schematic diagram of the low beam pattern affected by stray light;
[0028] Figure 5 This is a schematic diagram of the structure of the first specific embodiment of the high and low beam integrated module of the present invention. Figure 1 ;
[0029] Figure 6 This is a schematic diagram of the structure of the first specific embodiment of the high and low beam integrated module of the present invention. Figure 2 ;
[0030] Figure 7 This is a schematic diagram of the structure of the first specific embodiment of the high and low beam integrated module of the present invention. Figure 3 ;
[0031] Figure 8 These are schematic diagrams of the low beam circuit board and the high beam circuit board.
[0032] Figure 9This is a schematic diagram showing the dimensions of the first and second included angles;
[0033] Figure 10 This is an exploded view of components of the first specific embodiment of the high and low beam integrated module of the present invention;
[0034] Figure 11 This is a schematic diagram of the first error-proofing structure;
[0035] Figure 12 This is a schematic diagram of the lens holder structure;
[0036] Figure 13 This is a structural diagram of a specific implementation of the second error-proofing structure. Figure 1 ;
[0037] Figure 14 This is a structural diagram of a specific implementation of the second error-proofing structure. Figure 2 ;
[0038] Figure 15 This is a schematic diagram of another specific implementation of the second error-proofing structure;
[0039] Figure 16 This is a schematic diagram of the structure of the first specific embodiment of the high and low beam integrated module of the present invention. Figure 4 ;
[0040] Figure 17 This is a schematic diagram of a specific implementation of a high beam reflector element;
[0041] Figure 18 This is a schematic diagram of the structure of the first specific embodiment of the high and low beam integrated module of the present invention. Figure 5 ;
[0042] Figure 19 This is a schematic diagram of the structure of the second specific embodiment of the high and low beam integrated module of the present invention;
[0043] Figure 20 This is a cross-sectional view of a second specific embodiment of the high and low beam integrated module of the present invention;
[0044] Figure 21 This is a schematic diagram of the structure of the third specific embodiment of the high and low beam integrated module of the present invention;
[0045] Figure 22 This is a schematic diagram of the structure of the fourth specific embodiment of the high and low beam integrated module of the present invention;
[0046] Figure 23 This is a schematic diagram of the near beam pattern formed when the first included angle is 10°;
[0047] Figure 24 This is a schematic diagram of the near beam pattern formed when the first included angle is 25°;
[0048] Figure 25 This is a schematic diagram of the stray light path of an existing high / low beam integrated module;
[0049] Figure 26 This is a schematic diagram of the stray light path of the high and low beam integrated module of the present invention.
[0050] Explanation of reference numerals in the attached figures
[0051] 1. First lens; 101. Outer lens near beam area; 102. Outer lens high beam area; 2. Low beam module; 201. Low beam source; 202. Low beam reflector; 202-1. Reflective boundary; 203. Low beam circuit board; 3. High beam module; 301. High beam source; 302. High beam reflector; 302-1. Reflector; 302-2. Light blocking part; 303. High beam circuit board; 4. Mounting part; 401. Low beam mounting plane; 402 5. High beam mounting surface; 6. Second lens; 7. Low beam inner lens; 8. High beam inner lens; 9. Mounting edge; 10. Lens bracket; 11. Baffle; 2. Heat sink; 3. First mounting surface; 4. Second mounting surface; 5. First error prevention structure; 6. Positioning hole one; 7. Positioning post; 8. Second error prevention structure; 9. Positioning hole two; 10. Positioning boss; 11. Condenser; 12. LED light source. Detailed Implementation
[0052] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.
[0053] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0054] In this invention, unless otherwise stated, directional terms such as "above," "below," "left," "right," "front," and "rear" generally refer to the positional relationship of the headlights during actual use. For example, when the headlights are located at the rear of the vehicle and emit light towards the rear of the vehicle, the direction pointed to by the front of the vehicle is rear, and the direction pointed to by the rear of the vehicle is front. "Above," "below," "left," and "right" are positional relationships determined based on the positional relationship between "front" and "rear."
[0055] The first aspect of this invention provides an integrated high / low beam module. As a basic embodiment of the integrated high / low beam module of this invention, see [link to relevant documentation]. Figures 5-18 The system includes a first lens 1, a low beam module 2, a high beam module 3, and a mounting part 4. The low beam module 2 includes a low beam light source 201 and a low beam reflector 202. The first beam emitted from the low beam light source 201 is adapted to be converged by the low beam reflector 202 and then projected by the first lens 1 to form a low beam pattern. The high beam module 3 includes a high beam light source 301 and a high beam reflector 302. The second beam emitted from the high beam light source 301 is adapted to be converged by the high beam reflector 302 and then projected by the first lens 1 to form a high beam pattern. The mounting part 4 includes a low beam mounting plane 401 for mounting the low beam light source 201 and a high beam mounting plane 402 for mounting the high beam light source 301. The low beam mounting plane 401 forms a first angle with the optical axis C of the first lens 1, so that the direct light from the low beam light source 201 does not shine along the optical axis C of the first lens 1 towards the first lens 1, so that the direct light from the low beam light source 201 does not fall into the dark area of the low beam pattern.
[0056] In existing high and low beam integrated modules, the mounting plane of the LED light source is set parallel to the optical axis of the lens. Therefore, stray light from the LED light source that is biased towards the Y-axis will shine directly onto the lens in a direction parallel or nearly parallel to the optical axis of the lens. The lens will directly project the stray light into the dark area of the beam pattern without changing or nearly changing the direction of the stray light, thus affecting the beam pattern forming quality.
[0057] By tilting the near beam mounting plane 401 to form a first angle with the optical axis C of the first lens 1, this invention effectively prevents the direct light from the near beam source 201 from striking the first lens 1 along the optical axis C. This also prevents stray light generated by the direct light from the near beam source 201, which is biased towards the Y-axis (parallel to the near beam mounting plane 401), from striking the first lens 1 along its optical axis. Therefore, the direct light from the near beam source 201 does not fall into the dark area of the near beam pattern, effectively eliminating or reducing the influence of stray light generated by the direct light source on the beam pattern and ensuring the quality of the beam pattern formation. Furthermore, this invention's integrated high and low beam module solves the problem of stray light affecting beam pattern formation quality in the prior art by tilting the near beam mounting plane 401, without requiring additional light-shielding structures, simplifying the structure, reducing the number of parts, and lowering production costs.
[0058] It should be noted that, in addition to the near beam having a clear cutoff line to form bright and dark areas, in some cases, the high beam also needs to have a clear cutoff line to form bright and dark areas. In some embodiments of the present invention, the high beam mounting plane 402 forms a second angle with the optical axis of the first lens 1, so that the direct light from the high beam source 301 does not strike the first lens 1 along the optical axis, thus preventing the direct light from the high beam source 301 from falling into the dark area of the high beam.
[0059] There are two specific implementation methods to prevent stray rays from the near beam source 201 / far beam source 301 biased towards the Y-axis from falling into the dark area of the near beam / far beam pattern. The first specific implementation method is that the stray rays do not enter the light-incident surface of the first lens 1, so they cannot be projected out by the first lens 1 and affect the dark area of the beam pattern. The second specific implementation method is that the stray rays enter the light-incident surface of the first lens 1, but since the stray rays do not enter parallel to the optical axis of the first lens 1, the stray rays can be transmitted into the bright area of the beam pattern after changing direction by the first lens 1, thereby improving the brightness of the bright area of the beam pattern without affecting the brightness of the dark area. Corresponding to the two specific embodiments described above, the first included angle is configured such that the direct light rays emitted by the low beam light source 201, parallel to the low beam mounting plane 401, do not enter the light-incident surface of the first lens 1, or such that the direct light rays emitted by the low beam light source 201, parallel to the low beam mounting plane 401, fall into the bright area of the low beam pattern after being transmitted through the first lens 1; the second included angle is configured such that the direct light rays emitted by the high beam light source 301, parallel to the high beam mounting plane 402, do not enter the light-incident surface of the first lens 1, or such that the direct light rays emitted by the high beam light source 301, parallel to the high beam mounting plane 402, fall into the bright area of the high beam pattern after being transmitted through the first lens 1. It should be noted that in actual use, due to assembly errors or other design reasons, the emitting point of the light source may be slightly higher than its mounting plane, resulting in the light source producing direct rays that are not parallel to its mounting surface. Furthermore, the angle between this direct ray and the optical axis of the light source is greater than 90°. This direct ray may be projected through the first lens 1 and fall into the dark area of the light pattern. However, since this direct ray is relatively small, its impact on the brightness of the dark area is minimal, and its impact on the light pattern forming quality can be ignored. Alternatively, the angle of the first or second angle can be slightly increased so that the direct ray does not fall into the dark area of the light pattern, which is also within the scope of protection of this invention. It should also be noted that stray light can include not only direct rays emitted by the light source parallel to the mounting plane, but also any rays that affect the light pattern forming quality. For example, see [link to relevant documentation]. Figure 25Stray rays can also include direct rays emitted by the light source that form an angle with the light source mounting plane. Without reflection from the reflective element, these direct rays are projected directly through the first lens 1 and fall within the dark area of the designed light pattern, thus affecting the quality of the light pattern formation. Alternatively, stray rays can also include reflected rays that are directly emitted from the light source towards the reflective element and reflected by it. These reflected rays are projected through the first lens 1 and fall within the dark area of the designed light pattern, thus affecting the quality of the light pattern formation. Furthermore, by forming an inclined angle between the light source mounting plane and the optical axis of the first lens, the quality of the light pattern formation is altered. Figure 25 The propagation paths of the two stray rays are shown below, as follows: Figure 26 As shown, this enables Figure 25 The two types of stray rays shown do not enter the incident surface of lens one and do not affect the quality of the light pattern formation.
[0060] In some embodiments of the present invention, see Figure 5 , Figure 10 and Figure 12 The integrated high and low beam module of the present invention also includes a lens bracket 6 for mounting a first lens 1. The first lens 1 includes an outer lens near beam area 101 for projecting a first beam and an outer lens far beam area 102 for projecting a second beam. The lens bracket 6 is provided with a baffle 7 located on one side of the light-incident surface of the first lens 1. The baffle 7 is arranged corresponding to the boundary line between the outer lens near beam area 101 and the outer lens far beam area 102 to prevent light reflected by the near beam reflector 202 from entering the outer lens far beam area 102 and to prevent light reflected by the far beam reflector 302 from entering the outer lens near beam area 101, effectively eliminating stray light and ensuring the forming quality of the near beam and far beam patterns. It should be noted that the first lens 1 and the lens bracket 6 can be a single part or split into two parts. Using them as a single part helps to reduce the installation structure, reduce the number of parts, and reduce system costs. Similarly, the baffle 7 can also be a single part with the lens bracket 6 or split into two parts.
[0061] In some embodiments of the present invention, see Figure 5 , Figure 6 , Figure 7 and Figure 10The high and low beam integrated module of the present invention also includes a second lens 5, which includes a low beam inner lens 501 and a high beam inner lens 502. The low beam inner lens 501 is disposed between the low beam reflecting element 202 and the low beam area 101 of the outer lens of the first lens 1, so that the first beam focused by the low beam reflecting element 202 can be transmitted through the low beam inner lens 501 and then projected through the low beam area 101 of the outer lens of the first lens 1 to form a low beam pattern. The low beam inner lens 501 improves the shaping effect of the low beam pattern. The high beam inner lens 502 is disposed between the high beam reflecting element 302 and the high beam area 102 of the outer lens of the first lens 1, so that the second beam focused by the high beam reflecting element 302 can be transmitted through the high beam inner lens 502 and then projected through the high beam area 102 of the outer lens of the first lens 1 to form a high beam pattern. The high beam inner lens 502 improves the shaping effect of the high beam pattern. Regarding the setting of the second lens 5, in order to eliminate or reduce the influence of stray light from the light source on the light pattern forming quality, the first included angle is configured such that the direct light rays emitted by the low beam light source 201 parallel to the low beam mounting plane 401 do not enter the light-incident surface of the low beam inner lens 501, or so that the direct light rays emitted by the low beam light source 201 parallel to the low beam mounting plane 401, after being transmitted through the low beam inner lens 501, do not enter the light-incident surface of the first lens 1, or so that the direct light rays emitted by the low beam light source 201 parallel to the low beam mounting plane 401 pass sequentially through the low beam inner lens 501 and... After transmission through the first lens 1, the light falls into the bright area of the near beam pattern; the second included angle is configured such that the direct light emitted by the high beam source 301, parallel to the high beam mounting plane 402, does not enter the light-incident surface of the high beam inner lens 502, or the direct light emitted by the high beam source 301, parallel to the high beam mounting plane 402, after transmission through the high beam inner lens 502, does not enter the light-incident surface of the first lens 1, or the direct light emitted by the high beam source 301, parallel to the high beam mounting plane 402, after transmission through the high beam inner lens 502 and the first lens 1 in sequence, falls into the bright area of the high beam pattern. It should be noted that there may be more than one lens between the first lens 1 and the low beam module 2 / high beam module 3. When multiple lenses are provided, the first included angle is configured such that the direct light rays emitted by the low beam light source 201 parallel to the low beam mounting plane 401 will not be projected out by the first lens 1, or after being projected by multiple lenses, will finally be projected by the first lens 1 to the bright area of the low beam pattern; the second included angle is configured such that the direct light rays emitted by the high beam light source 301 parallel to the high beam mounting plane 402 will not be projected out by the first lens 1, or after being projected by multiple lenses, will finally be projected by the first lens 1 to the bright area of the high beam pattern.
[0062] In some embodiments of the present invention, the low beam inner lens 501 and the high beam inner lens 502 are integrally formed, which helps to reduce the installation structure, reduce the number of parts, and reduce system costs.
[0063] In some embodiments of the present invention, see Figure 5 and Figure 10 The high beam / low beam integrated module of the present invention also includes a heat sink 8, which can dissipate heat from the high beam / low beam integrated module of the present invention to avoid overheating damage. Specifically, the heat sink 8 includes a first mounting surface 801 for mounting the low beam module 2 and a second mounting surface 802 for mounting the high beam module 3. The included angle between the first mounting surface 801 and the second mounting surface 802 is set to correspond to the first included angle and the second included angle. That is, the included angle between the first mounting surface 801 and the optical axis of the first lens 1 is the same as the first included angle, and the included angle between the second mounting surface 802 and the optical axis of the first lens 1 is the same as the second included angle. The included angle between the first mounting surface 801 and the second mounting surface 802 is equal to the sum of the first included angle and the second included angle.
[0064] To improve integration, see Figures 5-8 The low beam module 2 includes a low beam circuit board 203 for mounting a low beam light source 201. The low beam light source 201 is integrated on the low beam circuit board 203, which is mounted on a first mounting surface 801. The surface on the low beam circuit board 203 where the low beam light source 201 is located is the low beam mounting plane 401. The high beam module 3 also includes a high beam circuit board 303 for mounting a high beam light source 301. The high beam light source 301 is integrated on the high beam circuit board 303, which is mounted on a second mounting surface 802. The surface on the high beam circuit board 303 where the high beam light source 301 is located is the high beam mounting plane 402.
[0065] In some embodiments of the present invention, see Figure 11 The second lens 5 has mounting edges 503 formed on both sides for mounting on the heat sink 8. A first error prevention structure 9 is provided between the mounting edge 503 and the heat sink 8. The first error prevention structure 9 includes a positioning hole 901 and a positioning post 902 that cooperate with each other to ensure that when the second lens 5 is mounted on the heat sink 8, the heat sink 8 is located on the light incident surface side of the second lens 5.
[0066] In some embodiments of the present invention, see Figures 13-15 A second error-proofing structure is provided between the low beam reflector 202 and the second lens 5, and / or a second error-proofing structure 10 is provided between the high beam reflector 302 and the second lens 5. The second error-proofing structure 10 includes a positioning hole 1001 and a positioning boss 1002 that cooperate with each other to realize the positioning and installation of the reflector and the second lens 5. In a preferred case, the second error-proofing structure between different component combinations should adopt an asymmetrical structure design to further avoid misinstallation between different components, so that the low beam reflector 202 and / or the high beam reflector 302 are both located on the light-incident surface side of the second lens 5, and the low beam reflector 202 and the high beam reflector 302 will not be mixed up. For example, see Figure 13 and Figure 15Two error-proofing structures with different implementation methods, among which... Figure 13 The error-proof structure 10 is positioned slightly to the left. Figure 15 The error-proof structure 10 is positioned slightly to the right to ensure that Figure 13 and Figure 15 The two embodiments cannot be used interchangeably. Furthermore, to improve the heat dissipation performance of the integrated high / low beam module of this invention, a gap should be provided between the second lens 5 and the reflective element to facilitate heat dissipation.
[0067] In some embodiments of the present invention, the angle of the first included angle is greater than 0° and less than or equal to 25°, which can effectively reduce or weaken the influence of stray light generated by direct light source on the near-light pattern; and the closer to the optical axis of the light source, the higher its luminous intensity. In order to ensure the brightness requirements of the bright area of the near-light pattern, in a preferred case, the angle of the first included angle is greater than 0° and less than or equal to 15°, so that the optical axis of the near-light source 201 and the optical axis of the first lens 1 are biased to be perpendicular.
[0068] In some embodiments of the present invention, the second included angle is greater than 0° and less than or equal to 15°, which can effectively reduce or weaken the influence of stray light generated by direct light source on the high beam pattern; and the closer to the optical axis of the light source, the higher its luminous intensity. In order to ensure the brightness requirements of the bright area of the high beam pattern, preferably, the second included angle is greater than 0° and less than or equal to 5°, so that the optical axis of the high beam light source 201 and the optical axis of the first lens 1 are biased towards 90°. It should be noted that the high beam pattern does not have a clear cutoff line requirement, because, in order to ensure the brightness of the high beam pattern, the second included angle can also be 0°, so that the optical axis of the high beam light source 201 and the optical axis of the first lens 1 are 90°.
[0069] In some embodiments of the present invention, see Figure 9The first included angle is α, and the straight-line distance from the optical center point of the near beam source 201 to the end of the near beam mounting plane 401 near the first lens 1 is A. The optical center point of the near beam source 201 is located at the focal point of the reflecting surface of the near beam reflecting element 202. The value of A should be adjusted according to the value of α so that the light reflected by the near beam source 201 through the reflecting surface of the near beam reflecting element 202 is not blocked by the near beam mounting plane 401. The focal length of the reflecting surface of the near beam reflecting element 202 is a constant value, and the optical center point of the near beam source 201 is located at its focal point. The near beam source 201 can rotate around the optical center point within a certain angle range to adjust the size of α, thereby adjusting the near beam pattern. The larger the value of α, the larger the maximum value of A. The second included angle is b, and the straight-line distance from the optical center point of the far beam source 301 to the end of the far beam mounting plane 401 near the first lens 1 is A. 2. The straight-line distance near one end of the first lens 1 is B. The optical center point of the high beam source 301 is located at the focal point of the reflective surface of the high beam reflector 302. The value of B should be adjusted according to the value of b, so that the light reflected by the high beam source 301 through the reflective surface of the high beam reflector 302 is not blocked by the high beam mounting plane 402. The focal length of the reflective surface of the high beam reflector 302 is a constant value. The optical center point of the high beam source 301 is located at its focal point. The high beam source 301 can rotate around the optical center point within a certain angle range to adjust the size of b, thereby adjusting the near beam pattern. The larger the value of b, the larger the maximum value of B. While reducing or eliminating the influence of stray light on the beam pattern forming quality, it avoids interference between the near beam mounting plane 401 and the high beam mounting plane 402 on the beam pattern, ensuring the brightness of the beam pattern. It should be noted that the high and low beam mounting planes are mainly the mounting surfaces of the circuit board. In order to meet the distance required for production and processing, A or B is preferably greater than 2mm.
[0070] In some embodiments of the present invention, see Figure 5 and Figure 6 The low beam reflector 202 is a reflector with a reflective boundary 202-1 corresponding to the shape of the cutoff line of the low beam pattern. The reflective boundary 202-1 is located at or near the focal point of the lens used to transmit the first beam converged by the low beam reflector 202. That is, corresponding to the specific embodiments with and without the second lens 5, the reflective boundary 202-1 is located at or near the focal point of the second lens 5 or the first lens 1, so that the light reflected by the reflector forms a preliminary illumination pattern, and finally forms a low beam pattern with both bright and dark cutoff lines through the projection of the first lens 1.
[0071] In some embodiments of the present invention, the reflective boundary 202-1 is located at the end of the low beam reflector 202 near the low beam source 201, and the first included angle is configured such that the low beam mounting plane 401 does not block the first beam reflected by the reflective surface of the low beam reflector 202 located above the reflective boundary 202-1, so as to avoid the low beam mounting plane 401 blocking the preliminary illumination pattern formed by the reflection of the reflector.
[0072] In some embodiments of the present invention, see Figures 16-18 The high beam reflector 302 includes multiple reflectors 302-1 and light-blocking parts 302-2 connected sequentially in the left-right direction. The reflective surface of the reflector 302-1 can be a plane or a curved surface. Preferably, the reflective surface of the reflector 302-1 is parabolic or ellipsoidal. The light-blocking part 302-2 can separate the reflective cavities corresponding to each reflector 302-1 to avoid the cross-traffic interference between the light reflected by adjacent reflectors 302-1.
[0073] Further, see Figure 17 The light-blocking part 302-2 includes a partition 302-2a connected to the reflector 302-1 and a baffle 302-2b disposed on the partition 302-2a. The baffle 302-2b is located at the junction of two adjacent reflectors 302-1. The partition 302-2a is connected to one side of the reflector 302-1 along its light-emitting direction. The number of baffles 302-2b matches the number of reflectors 302-1, and is generally one less than the number of reflectors 302-1. The dimensions (including height and width) of the baffle 302-2b can be designed according to the size of the high beam reflecting element 302 to block stray light between the reflecting cavities of multiple reflectors 302-1. For example, the height of the baffle 18 can be 10-35mm and the width can be 0.8-2mm.
[0074] It should be noted that, see Figure 19 and Figure 20 The aforementioned high beam reflector 302 can also be a mirror with a single reflective surface, or a mirror formed by splicing two reflective surfaces, without the need for a light-blocking part 302-2, thus enabling direct reflection to form a preliminary illumination pattern. Furthermore, there are various specific implementation methods for projecting the preliminary illumination pattern formed by reflection from the high beam reflector 302 into a high beam pattern; for example, see... Figures 20 to 22 The initially formed illumination pattern is directly projected through the high-beam area 102 of the outer lens of the first lens 1 to form a high-beam pattern; or, see... Figures 5-7 One or more lenses are disposed between the first lens 1 and the high beam reflector 302. The initially formed illumination pattern is projected through one or more lenses and then projected through the high beam area 102 of the outer lens of the first lens 1 to form a high beam pattern; or, see Figure 22 A concentrator 10 is provided, and the high beam light source 301 can be directly emitted after being focused by the concentrator 10, or projected onto the high beam area 102 of the outer lens of the first lens 1 after being projected through one or more lenses to form a high beam pattern. (Preferred embodiment, see...) Figure 21 and Figure 22 The outer lens high beam area 102 of the first lens 1 can be a thick-walled lens, thereby improving the overall brightness of the high beam pattern.
[0075] As a relatively preferred embodiment of the present invention, a high and low beam integrated module is provided, such as... Figures 5-10As shown, the system includes a first lens 1, a second lens 5, a low beam module 2, a high beam module 3, and a heat sink 8. The low beam module 2 includes a low beam light source 201, a low beam reflector 202, and a low beam circuit board 203. The high beam module 3 includes a high beam light source 301, a high beam reflector 302, and a high beam circuit board 303. The low beam light source 201 is integrated onto the low beam circuit board 203 and mounted on the first mounting surface 801 of the heat sink 8. The high beam light source 301 is integrated onto the high beam circuit board 303 and mounted on the second mounting surface 802 of the heat sink 8. The first mounting surface 801 and the second mounting surface 802 are arranged vertically. The first lens 1 includes an outer lens with a low beam area 101 and a lower beam area 102. The outer lens has a high-beam area 102. The second lens 5 includes a low-beam inner lens 501 and a high-beam inner lens 502. The first beam emitted by the low-beam source 201 is sequentially projected through the low-beam reflector 202, the low-beam inner lens 501, and the outer lens's low-beam area 101 to form a low-beam pattern. The second beam emitted by the high-beam source 301 is sequentially projected through the high-beam reflector 302, the high-beam inner lens 502, and the outer lens's high-beam area 102 to form a high-beam pattern. The surface on the low-beam circuit board 203 where the low-beam source 201 is located is the low-beam mounting plane 401, which forms a first angle α with the optical axis of the first lens 1. This first angle α is configured such that the beam emitted by the low-beam source 201 is parallel to the optical axis of the first lens 1. Direct rays from the low beam mounting plane 401 do not incident on the light-incident surface of the low beam inner lens 501, or direct rays from the low beam source 201 parallel to the low beam mounting plane 401 are transmitted through the low beam inner lens 501 and do not incident on the light-incident surface of the first lens 1, or direct rays from the low beam source 201 parallel to the low beam mounting plane 401 are transmitted sequentially through the low beam inner lens 501 and the first lens 1 and fall into the bright area of the low beam pattern, where a is greater than 0° and less than or equal to 25°, preferably greater than 0° and less than or equal to 15°; the surface on the high beam circuit board 303 where the high beam source 301 is located is the high beam mounting plane 402, which is adjacent to the first lens 1. The optical axis direction forms a second included angle b, which is configured such that the direct light rays emitted by the high beam light source 301 parallel to the high beam mounting plane 402 do not enter the light-incident surface of the high beam inner lens 502, or the direct light rays emitted by the high beam light source 301 parallel to the high beam mounting plane 402 are transmitted through the high beam inner lens 502 and do not enter the light-incident surface of the first lens 1, or the direct light rays emitted by the high beam light source 301 parallel to the high beam mounting plane 402 are transmitted sequentially through the high beam inner lens 502 and the first lens 1 and fall into the bright area of the high beam pattern. b is greater than or equal to 0° and less than or equal to 15°. Preferably, b is greater than or equal to 0° and less than or equal to 5°.
[0076] The integrated high and low beam module provided by the above preferred embodiment is beneficial in preventing stray light from the low beam light source 201 / high beam light source 301 biased towards the Y-axis from falling into the dark area of the low beam pattern and the high beam pattern. This effectively eliminates and weakens the influence of stray light generated by direct light source on the beam pattern, ensuring the beam pattern forming quality. Moreover, the integrated high and low beam module provided by the present invention only needs to tilt the installation angle of the low beam circuit board 203 and the high beam circuit board 303, thereby changing the setting angle of the low beam mounting plane 401 and the high beam mounting plane 402, to solve the beam pattern forming quality problem caused by stray light. There is no need to set the shielding element on the circuit board or set the additional light shielding structure in the integrated high and low beam module, which simplifies the structure, reduces the number of parts, and reduces the production cost.
[0077] To further demonstrate the beneficial effects of the integrated high and low beam module provided by the present invention, the following compares the low beam patterns formed by Embodiment 1, Embodiment 2, and the comparative example.
[0078] Example 1: Using the above-mentioned relatively preferred specific embodiment, wherein the first included angle α is 15°, the resulting near-beam pattern is as follows: Figure 3 As shown;
[0079] Example 2: Except for the first included angle α being set to 25°, the other features are the same as in Example 1, and the resulting near-beam pattern is as follows. Figure 24 As shown;
[0080] Example 3: Except for the first included angle α being set to 10°, the other features are the same as in Example 1, and the resulting near-beam pattern is as follows. Figure 23 As shown;
[0081] Comparative Example: Except for the first included angle α being set to 0°, the other features are the same as in Example 1, and the resulting near-beam pattern is as follows: Figure 4 As shown.
[0082] By comparing the near-beam patterns, it is evident that the stray light patterns above the cutoff line of the near-beam patterns formed in Examples 1, 2, and 3 are significantly smaller than the stray light pattern in the comparative example. Specifically, the stray light patterns above the cutoff line of the near-beam patterns formed in Examples 1 and 2 are almost nonexistent, while the stray light pattern above the cutoff line of the near-beam pattern formed in Example 3 is relatively small, having a smaller impact on the near-beam pattern. Through the above-described technical solution of the lighting module of this invention, the influence of stray light generated by direct light source on the light pattern can be effectively eliminated or reduced, ensuring the quality of light pattern formation.
[0083] A second aspect of the present invention provides a vehicle headlight equipped with the aforementioned integrated high and low beam module, which possesses all its beneficial effects, and will not be elaborated further here.
[0084] A third aspect of the present invention provides a vehicle including the aforementioned vehicle lights, possessing all of their beneficial effects, which will not be elaborated further here.
[0085] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0086] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.
[0087] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.
Claims
1. A high / low beam integrated module, characterized by comprising: The high-low light module comprises a first lens (1), a low-beam module (2), a high-beam module (3) and a mounting portion (4), The low-beam module (2) comprises a low-beam light source (201) and a low-beam reflecting element (202), and a first light beam emitted by the low-beam light source (201) is adapted to be converged by the low-beam reflecting element (202) and then projected by the first lens (1) to form a low-beam light pattern; The high-beam module (3) comprises a high-beam light source (301) and a high-beam reflecting element (302), and a second light beam emitted by the high-beam light source (301) is adapted to be converged by the high-beam reflecting element (302) and then projected by the first lens (1) to form a high-beam light pattern; The mounting portion (4) comprises a low-beam mounting plane (401) for mounting the low-beam light source (201) and a high-beam mounting plane (402) for mounting the high-beam light source (301), the low-beam mounting plane (401) forms a first included angle with the optical axis of the first lens (1), so that the direct light of the low-beam light source (201) is not projected to the first lens (1) along the optical axis of the first lens (1), so that the direct light of the low-beam light source (201) does not fall into the dark area of the low-beam light pattern.
2. The high / low beam integrated module according to claim 1, characterized by The high-beam mounting plane (402) forms a second included angle with the optical axis of the first lens (1), so that the direct light of the high-beam light source (301) is not projected to the first lens (1) along the optical axis of the first lens (1), so that the direct light of the high-beam light source (301) does not fall into the dark area of the high-beam light pattern.
3. The high-low light module according to claim 2, wherein The first included angle is configured so that the direct light emitted by the low-beam light source (201) parallel to the low-beam mounting plane (401) is not incident on the light entrance surface of the first lens (1), or so that the direct light emitted by the low-beam light source (201) parallel to the low-beam mounting plane (401) falls into the bright area of the low-beam light pattern after being transmitted by the first lens (1); The second included angle is configured so that the direct light emitted by the high-beam light source (301) parallel to the high-beam mounting plane (402) is not incident on the light entrance surface of the first lens (1), or so that the direct light emitted by the high-beam light source (301) parallel to the high-beam mounting plane (402) falls into the bright area of the high-beam light pattern after being transmitted by the first lens (1).
4. The high / low beam integrated module according to claim 3, characterized in that, The high-low light module further comprises a second lens (5), and the second lens (5) comprises a low-beam inner lens (501) and a high-beam inner lens (502), The first light beam converged by the low beam reflection element (202) is adapted to form the low beam light pattern after being transmitted through the low beam inner lens (501) and then projected through the first lens (1), and the first included angle is configured such that the direct light rays emitted by the low beam light source (201) parallel to the low beam mounting plane (401) do not enter the light entrance surface of the low beam inner lens (501), or such that the direct light rays emitted by the low beam light source (201) parallel to the low beam mounting plane (401) do not enter the light entrance surface of the first lens (1) after being transmitted through the low beam inner lens (501), or such that the direct light rays emitted by the low beam light source (201) parallel to the low beam mounting plane (401) fall into the bright area of the low beam light pattern after being transmitted through the low beam inner lens (501) and the first lens (1) in sequence. The second light beam converged by the high beam reflection element (302) is adapted to form the high beam light pattern after being transmitted through the high beam inner lens (502) and then projected through the first lens (1), and the second included angle is configured such that the direct light rays emitted by the high beam light source (301) parallel to the high beam mounting plane (402) do not enter the light entrance surface of the high beam inner lens (502), or such that the direct light rays emitted by the high beam light source (301) parallel to the high beam mounting plane (402) do not enter the light entrance surface of the first lens (1) after being transmitted through the high beam inner lens (502), or such that the direct light rays emitted by the high beam light source (301) parallel to the high beam mounting plane (402) fall into the bright area of the high beam light pattern after being transmitted through the high beam inner lens (502) and the first lens (1) in sequence.
5. The high / low beam integrated module according to claim 4, wherein The low beam inner lens (501) and the high beam inner lens (502) are integrally formed.
6. The high / low beam integrated module according to claim 5, wherein Further comprising a heat sink (8), both sides of the second lens (5) are formed with mounting edges (503) for mounting on the heat sink (8), and a first error prevention structure (9) is arranged between the mounting edges (503) and the heat sink (8), the first error prevention structure (9) comprising a positioning hole (901) and a positioning column (902) that cooperate with each other.
7. The high / low beam integrated module according to claim 6, wherein The heat sink (8) is formed with a first mounting surface (801) for mounting the low beam module (2) and a second mounting surface (802) for mounting the high beam module (3), and the included angle between the first mounting surface (801) and the second mounting surface (802) corresponds to the first included angle and the second included angle.
8. The high-low beam integrated module according to claim 7, wherein The low beam module (2) further comprises a low beam circuit board (203) for mounting the low beam light source (201), the low beam circuit board (203) is mounted on the first mounting surface (801), and the surface of the low beam circuit board (203) on which the low beam light source (201) is located is the low beam mounting plane (401). The high beam module (3) further comprises a high beam circuit board (303) for mounting the high beam light source (301), the high beam circuit board (303) is mounted on the second mounting surface (802), and the surface of the high beam circuit board (303) on which the high beam light source (301) is located is the high beam mounting plane (402).
9. The high / low beam integrated module according to claim 5, wherein The low beam reflection element (202) and the second lens (5) are provided with a second mistake prevention structure (10), and / or the high beam reflection element (302) and the second lens (5) are provided with a second mistake prevention structure (10), the second mistake prevention structure (10) comprises a positioning hole two (1001) and a positioning boss (1002) matched with each other.
10. The high / low beam integrated module according to any one of claims 2 to 9, characterized by The angle of the first included angle is greater than 0° and less than or equal to 25°; and / or The angle of the second included angle is greater than or equal to 0° and less than or equal to 15°.
11. The high / low beam integrated module according to claim 10, wherein The angle of the first included angle is greater than 0° and less than or equal to 15°; and / or The angle of the second included angle is greater than or equal to 0° and less than or equal to 5°.
12. The high / low beam integrated module according to any one of claims 1 to 9, characterized by The low beam reflection element (202) is a reflector, the reflector is provided with a reflective boundary (202-1) corresponding to the shape of the low beam light type cut-off line, the reflective boundary (202-1) is arranged at or near the lens focal point for transmitting the first light beam converged by the low beam reflection element (202), the reflective boundary (202-1) is located at one end of the reflector close to the low beam light source (201), and the first included angle is configured so that the low beam mounting plane (401) does not block the first light beam reflected by the reflector located above the reflective boundary (202-1).
13. A vehicle lamp, characterized by The high beam module (3) further comprises a high beam circuit board (303) for mounting the high beam light source (301), the high beam circuit board (303) is mounted on the second mounting surface (802), and the surface of the high beam circuit board (303) on which the high beam light source (301) is located is the high beam mounting plane (402). The low beam reflection element (202) and the second lens (5) are provided with a second mistake prevention structure (10), and / or the high beam reflection element (302) and the second lens (5) are provided with a second mistake prevention structure (10), the second mistake prevention structure (10) comprises a positioning hole two (1001) and a positioning boss (1002) matched with each other. The angle of the first included angle is greater than 0° and less than or equal to 25°; and / or The angle of the second included angle is greater than or equal to 0° and less than or equal to 15°. The angle of the first included angle is greater than 0° and less than or equal to 15°; and / or The angle of the second included angle is greater than or equal to 0° and less than or equal to 5°. The low beam reflection element (202) is a reflector, the reflector is provided with a reflective boundary (202-1) corresponding to the shape of the low beam light type cut-off line, the reflective boundary (202-1) is arranged at or near the lens focal point for transmitting the first light beam converged by the low beam reflection element (202), the reflective boundary (202-1) is located at one end of the reflector close to the low beam light source (201), and the first included angle is configured so that the low beam mounting plane (401) does not block the first light beam reflected by the reflector located above the reflective boundary (202-1). The high beam module (3) further comprises a high beam circuit board (303) for mounting the high beam light source (301), the high beam circuit board (303) is mounted on the second mounting surface (802), and the surface of the high beam circuit board (303) on which the high beam light source (301) is located is the high beam mounting plane (402). The low beam reflection element (202) and the second lens (5) are provided with a second mistake prevention structure (10), and / or the high beam reflection element (302) and the second lens (5) are provided with a second mistake prevention structure (10), the second mistake prevention structure (10) comprises a positioning hole two (1001) and a positioning boss (1002) matched with each other.