High / low beam lamp device, vehicle lamp apparatus, and vehicle

Abstract

This invention discloses a high / low beam headlight device, vehicle lighting equipment, and vehicle, relating to the field of vehicle lighting technology. The low beam source emits a light beam through a low beam optical path from an exiting lens; the high beam source emits a light beam through a high beam optical path from an exiting lens. The low beam and high beam sources are configured to selectively illuminate either the low beam or the high beam source to switch between low and high beam. At least one low beam reflecting element is provided in the low beam optical path, positioned at the focal point of the exiting lens to fold and reflect the low beam to the exiting lens. A high beam reflecting element is provided in the high beam optical path to reflect the high beam to the exiting lens. This invention eliminates moving parts such as movable light shields and motors, avoiding noise from mechanical switching, reducing the number of parts, lowering assembly costs, maintaining the compactness of the high / low beam lighting module, and improving switching reliability and response speed.

Description

Technical Field

[0001] This invention relates to the field of vehicle lighting technology, and particularly to high and low beam headlight devices, vehicle lighting equipment, and vehicles. Background Technology

[0002] In vehicle high and low beam lighting modules, it is typically necessary to switch between low beam and high beam lighting. In low beam mode, a light distribution pattern with a cutoff line should be formed to avoid dazzling vehicles ahead or oncoming vehicles; in high beam mode, a longer and wider illumination range should be provided. This requires the lighting module to have reliable light pattern switching capability while ensuring the corresponding light pattern.

[0003] In related technologies, to achieve switching between low beam and high beam, a movable light shield is often placed near the focal point of the lens, and a motor is used to drive the light shield to rotate. The light emitted by the light source is adjusted to the vicinity of the lens focal point by a reflector, and the lens forms the desired light pattern. When using low beam, the movable light shield blocks part of the light to form a cutoff line between light and dark. When switching to high beam, the motor drives the light shield to open the blocked light path. In this type of solution, the movement of the light shield depends on the motor and rotating components, which can easily generate noise during mechanical movement. At the same time, the large number of components such as the movable light shield, motor, and rotating components leads to complex assembly processes and high overall module costs. Summary of the Invention

[0004] The main objective of this invention is to propose a high beam / low beam headlight device that aims to solve the technical problems in the prior art, such as switching noise when switching between low beam and high beam, and complex structure and high assembly cost due to the large number of mechanical moving parts.

[0005] To achieve the above objectives, the present invention provides a high / low beam headlight device, the high / low beam headlight device comprising: The system includes an output lens, a low beam source, and a high beam source. The beam of the low beam source is emitted from the output lens through a low beam optical path. The beam of the high beam source is emitted from the output lens through a high beam optical path. The low beam source and the high beam source are configured to selectively illuminate either the low beam source or the high beam source to switch between low beam and high beam. At least one low-beam reflector is provided in the low-beam optical path, and the low-beam reflector is located at the focal position of the light-emitting lens to fold and reflect the light beam of the low-beam source to the light-emitting lens; a high-beam reflector is provided in the high-beam optical path, and the high-beam reflector is used to reflect the light beam of the high-beam source to the light-emitting lens.

[0006] In one embodiment, a first-stage near-beam reflector and a second-stage near-beam reflector are provided in the near-beam optical path, and the second-stage near-beam reflector is located at the focal point of the light-emitting lens; The first-stage low-beam reflector is used to reflect the light beam emitted from the low-beam light source to the second-stage low-beam reflector, and then reflect the light beam a second time to the light-emitting lens through the second-stage low-beam reflector.

[0007] In one embodiment, the high and low beam headlight device further includes a heat sink, with the high beam light source disposed on the top of the heat sink and the low beam light source disposed on the side wall of the heat sink facing the light-emitting lens; The high beam reflector is disposed above the high beam source, the first-stage low beam reflector is disposed between the low beam source and the light-emitting lens, and the second-stage low beam reflector is disposed above the first-stage low beam reflector. Wherein, a clearance is formed between the first-stage low beam reflector and the second-stage low beam reflector to avoid the high beam optical path.

[0008] In one embodiment, the first-stage near-light reflector and the second-stage near-light reflector are integrally formed from the same optical component. The optical component has a first reflective surface region facing the near-light source to form the first-stage near-light reflector, and a second reflective surface region for reflecting the light beam to the light-emitting lens to form the second-stage near-light reflector.

[0009] In one embodiment, the first-stage low-beam reflector and the high-beam reflector are reflector bowls, and the second-stage low-beam reflector is a reflector.

[0010] In one embodiment, the reflective surface of the near-light reflecting element disposed at the focal position of the light-emitting lens has an angle between the reflective surface and the horizontal plane, the angle being 30 degrees to 60 degrees.

[0011] In one embodiment, the low beam reflector element disposed at the focal position of the light-emitting lens has a low beam cutoff line structure, which is used to form a light and dark cutoff line for the low beam pattern.

[0012] In one embodiment, the high and low beam headlight device further includes a controller electrically connected to the low beam source and the high beam source, respectively. The controller is configured to have a low beam mode that illuminates only the low beam source, a high beam mode that illuminates only the high beam source, and a combined mode that illuminates both the low beam source and the high beam source simultaneously.

[0013] Furthermore, to solve the above problems, the present invention also proposes a valve spring adjustment method, which is applied to the high and low beam headlight device as described above, and the valve spring adjustment method includes: The engine speed is collected, and the height adjustment assembly is moved according to the engine speed to compress or release the valve spring.

[0014] In addition, to solve the above problems, the present invention also proposes a vehicle lighting device, which is equipped with the high and low beam lamps as described above.

[0015] In addition, to solve the above problems, the present invention also proposes a vehicle equipped with the above-described vehicle lighting device.

[0016] The technical solution of this invention separates the near beam and high beam optical paths into two independent optical paths, and uses a near beam reflecting element located at the focal point of the output lens to fold the near beam. This allows the light patterns of the near beam and high beam to be switched by selecting the corresponding light source, thereby eliminating moving parts such as movable light shields and motors, avoiding noise caused by mechanical switching, reducing the number of parts, and lowering assembly costs. At the same time, the near beam and high beam light sources share the same output lens, which helps to maintain the compactness of the near and high beam lighting modules and improves switching reliability and response speed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the high and low beam lamp device of the present invention.

[0019] Figure 2 for Figure 1 The main view in the text.

[0020] Figure 3 for Figure 1 Side view of the middle.

[0021] Figure 4 This is a schematic diagram of the beam propagation direction of the low beam path in the high and low beam lamp device of the present invention.

[0022] Figure 5 This is a schematic diagram of the beam propagation direction of the high beam path in the high beam and low beam lamp device of the present invention.

[0023] Figure 6 This is a simulation diagram of the light pattern in the low beam mode of the high beam and low beam lamp device of the present invention.

[0024] Figure 7 This is a diagram illustrating the light pattern effect in low beam mode of the high / low beam lamp device of the present invention.

[0025] Figure 8 This is a simulation diagram of the light pattern in the high beam mode of the high beam lamp device of the present invention.

[0026] Figure 9 This is a diagram illustrating the light pattern effect in the high beam mode of the high beam lamp device of the present invention.

[0027] Figure 10 This is a simulation diagram of the light pattern in the combined mode of the high and low beam lamp device of the present invention.

[0028] Figure 11 This is a diagram illustrating the light pattern effect in the combined mode of the high and low beam lighting device of the present invention.

[0029] Attached icon number 10. Light-emitting lens; 21. Low beam source; 22. High beam source; 31. First-stage low beam reflector; 311. First reflective surface area; 32. Second-stage low beam reflector; 321. Second reflective surface area; 40. High beam reflector; 50. Heat sink; 60. Clearance notch; 70. Low beam cutoff line structure.

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] In vehicle high and low beam lighting modules, to achieve the goal of low beam light being imaged by a lens and forming a cutoff line between light and dark areas, and high beam light being projected through the same lens, a common technology employs a movable light shield, driven by a motor to swing or rotate. This scheme arranges the light source, movable light shield, and lens sequentially along the lens's optical axis. In low beam mode, the movable light shield blocks some light below the lens's focal point, resulting in a low beam pattern with a clear light-dark boundary after projection. In high beam mode, the motor moves or rotates the movable light shield, releasing the blocked light and forming the high beam pattern. The position of the movable light shield can be coordinated with the imaging relationship near the lens's focal point, allowing for mechanical switching of the beam pattern behind the same lens while maintaining the shared lens for both low and high beams.

[0035] However, its performance is less than ideal in applications with stringent requirements for low noise, low component count, and low assembly cost in vehicle lighting modules. This is because, to achieve the near-light-dark cutoff line, this solution requires a movable light shield near the lens focal point. The mobility of the light shield requires a motor and transmission structure to drive it, and the mechanical movement switching process generates noise. Furthermore, the moving parts and their supporting structures increase the number of components, complicating the positioning and assembly relationships in the optical path. For example, in a vehicle headlight module, when the motor drives the movable light shield to rotate, the motor's start-stop and transmission clearances generate noise. The movable light shield, motor, and rotating components need to be installed and adjusted separately, leading to an increase in assembly stations and higher material and assembly costs.

[0036] In-depth analysis revealed that the root cause of the aforementioned contradiction lies in the fact that the relevant technology binds the beam pattern switching function to the mechanical light-blocking action. The cutoff line between light and dark relies on the physical edge of the light-blocking plate to block the beam during movement, which necessitates the inclusion of movable and driving components in the system. In other words, the near-beam and far-beam paths are not spatially separated but share the same reflection and blocking path; therefore, switching any beam path must be achieved by changing the state of the light-blocking plate.

[0037] To overcome the aforementioned contradictions, this invention proposes a high / low beam lamp device. The near beam source 21 is folded and reflected by at least one low beam reflector element to the lens, and a cutoff line is formed by the edge of the low beam reflector element located near the focal point of the output lens 10. The high beam source 22 is reflected by the high beam reflector element 40 to the lens. Switching between low and high beam is achieved simply by controlling the energization of the low beam source 21 and the high beam source 22. Therefore, this invention separates the low beam and high beam optical paths into two independent optical paths, eliminating the need for a movable light shield and motor, thus solving the problems of noise and numerous parts caused by mechanical switching, and enabling switching between low and high beam beam types by turning the light source on and off.

[0038] For details, please refer to Figure 1 The spatial orientation terms used in this embodiment are as follows: Figure 1 The coordinates in the diagram are for reference. The X-axis can be understood as the vehicle's front-to-back direction, the Z-axis as the vehicle's height direction, and the Y-axis as the vehicle's width direction. The horizontal plane can be understood as the plane defined by the X and Y axes, with the vertical direction being the Z-axis.

[0039] As a reference direction, in subsequent embodiments, the optical axis of the light-emitting lens 10 extends horizontally along the X-axis, with the focal point located on the optical axis of the incident side of the light-emitting lens 10. Furthermore, the orientation and installation position of the light-emitting lens 10, the near-beam light source 21, and the far-beam light source 22 can all be adjusted, as long as the light beam can ultimately be reflected onto the light-emitting lens 10 along the near-beam and far-beam optical paths.

[0040] In this context, both the near-beam and far-beam optical paths are beam propagation paths, not physical structures. Both the near-beam and far-beam reflective elements 40 are optical components with reflective functions; their reflective surfaces can be coated with a reflective film or made of high-reflectivity materials.

[0041] As one example, please refer to Figures 1-3The high and low beam headlight device includes a light-emitting lens 10, a low beam source 21, and a high beam source 22. The beam of the low beam source 21 is emitted from the light-emitting lens 10 through the low beam optical path; the beam of the high beam source 22 is emitted from the light-emitting lens 10 through the high beam optical path; the low beam source 21 and the high beam source 22 are configured to selectively illuminate the low beam source 21 or the high beam source 22 to switch between low beam and high beam.

[0042] At least one low-beam reflector is provided in the low-beam optical path. The low-beam reflector is located at the focal position of the light-emitting lens 10 to fold and reflect the light beam of the low-beam light source 21 to the light-emitting lens 10. A high-beam reflector 40 is provided in the high-beam optical path. The high-beam reflector 40 is used to reflect the light beam of the high-beam light source 22 to the light-emitting lens 10.

[0043] The light-emitting lens 10 refers to a lens that transmits, converges, or collimates visible light. It can be a single lens made of glass or transparent resin, or a lens group composed of multiple lenses.

[0044] The focal position of the light-emitting lens 10 refers to the area that coincides with or is near the focal point of the light-emitting lens 10.

[0045] Please see Figure 6 and Figure 7 The light beam emitted by the near light source 21, after passing through the near light optical path, is emitted from the light-emitting lens 10 along the optical axis and forms a pattern on the light distribution screen as shown in the image. Figure 6 and Figure 7 The light pattern diagram is shown. Please refer to [link / reference]. Figure 8 and Figure 9 The light beam emitted by the high beam source 22, after passing through the high beam optical path, is also emitted from the light-emitting lens 10 along the optical axis, forming a pattern on the light distribution screen as shown in the image. Figure 8 and Figure 9 The light pattern diagram is shown.

[0046] The low-beam source 21 refers to the light source used to form the low-beam pattern, and can be a light-emitting diode (LED), a semiconductor laser, or other semiconductor light source. The high-beam source 22 refers to the light source used to form the high-beam pattern, and is the same as the low-beam source 21, and can be a light-emitting diode or other types of light source. The low-beam source 21 and the high-beam source 22 can each be composed of at least one light-emitting element, or they can each be composed of an array of multiple light-emitting elements.

[0047] Selective lighting refers to controlling at least one of the low beam light source 21 and the high beam light source 22 to be lit or turned off according to lighting needs via circuitry.

[0048] A low beam reflector is an optical element disposed on the low beam path to change the propagation direction of the low beam by reflection. A high beam reflector 40 is an optical element disposed on the high beam path to change the propagation direction of the high beam by reflection.

[0049] Under the action of the near-light reflector, it can fold the near-light beam. Folding reflection means that the beam changes its propagation direction after at least one reflection, so that the light path is folded in a limited space, thereby shortening the length of the optical system in the optical axis direction.

[0050] The high beam reflector 40 can be flexibly set according to the emission direction of the high beam source 22, as long as it can reflect the high beam to the light-emitting lens 10.

[0051] Compared with existing technologies, in this embodiment, since the near beam source 21 and the far beam source 22 each have independent optical paths, the near beam and the far beam can be switched by turning the light source on and off, eliminating the need for a movable light shield and a motor to drive it. This avoids noise generated by the movement of the movable light shield, reduces the number of parts in the motor and rotating components, and lowers assembly difficulty and module cost. Furthermore, since the near beam and the far beam are emitted from the same light-emitting lens 10 through different reflection paths, the axial and height dimensions of the entire device can be effectively controlled.

[0052] Furthermore, as another embodiment, in order to further optimize the folding effect of the low beam optical path and achieve spatial separation of the low beam optical path and the high beam optical path, the high and low beam lamp device can also be provided with two levels of low beam reflective elements. The low beam optical path is provided with a first level low beam reflective element 31 and a second level low beam reflective element 32, and the second level low beam reflective element 32 is located at the focal position of the light-emitting lens 10; the first level low beam reflective element 31 is used to reflect the light beam emitted from the low beam light source 21 to the second level low beam reflective element 32, and the second level low beam reflective element 32 reflects the light beam a second time to the light-emitting lens 10.

[0053] The first-stage low-beam reflector 31 refers to a reflective element that is closer to the low-beam light source 21 and preferentially receives the beam emitted from the low-beam light source 21. The second-stage low-beam reflector 32 refers to a reflective element located at the focal point of the light-emitting lens 10, used to receive the beam reflected by the first-stage low-beam reflector 31 and reflect the beam a second time to the light-emitting lens 10.

[0054] The first-stage low beam reflector 31 may have an arc-shaped reflective surface for collecting the divergent beam emitted by the low beam source 21 and converging or aligning the collected beam to the second-stage low beam reflector 32.

[0055] The second-stage low-beam reflector 32 can have a planar or curved reflective surface, used to reflect the light beam reflected from the first-stage low-beam reflector 31 toward the exit lens 10. Through two-stage reflection, the low-beam beam undergoes two folds during propagation, thus forming a folded low-beam optical path.

[0056] For example, please see Figure 2 and Figure 3 The first-stage low-beam reflector 31 can be a reflector bowl, and the second-stage low-beam reflector 32 can be a reflector mirror. This improves the beam collection efficiency of the low-beam source 21 and ensures the precise shaping of the low-beam pattern.

[0057] A reflector bowl is an optical component with a concave reflective surface, which can be a paraboloid of revolution, an ellipsoid of revolution, or a surface composed of multiple freeform surfaces. The reflector bowl is used to collect divergent light beams emitted by a light source and reflect them into approximately parallel or converging beams. When the first-stage near-beam reflector element 31 is a reflector bowl, it can collect light beams within a relatively large angular range emitted by the near-beam light source 21 and guide them to the second-stage near-beam reflector element 32 located at the focal point.

[0058] A reflector is an optical component with a planar or near-planar reflective surface. Its reflective surface has a relatively regular shape and is used to reflect the incident light beam in a predetermined direction. When the second-stage near-beam reflector 32 is a reflector, the flatness and tilt angle of its reflective surface directly determine the projection direction of the near-beam main beam pattern and the position of the cutoff line.

[0059] Similarly, in order to improve the beam collection efficiency of the high beam source 22 and ensure the accurate shaping of the high beam pattern, the high beam reflector 40 can also adopt a reflector bowl. When the high beam reflector 40 adopts a reflector bowl, it can collect the divergent beam emitted by the high beam source 22 and reflect it to the light-emitting lens 10.

[0060] By setting the first-stage low-beam reflector 31 and high-beam reflector 40 as reflector bowls, the beam collection efficiency of the low-beam source 21 and high-beam source 22 can be improved, and light energy loss can be reduced. By setting the second-stage low-beam reflector 32 as a reflector, the direction of the beam reflected to the light-emitting lens 10 can be controlled more accurately, thereby ensuring the precise shaping of the low-beam pattern and the clarity of the cutoff line.

[0061] As an alternative implementation, the reflective surface of the reflector bowl can also be a freeform surface, and the reflective surface of the mirror can have a slight curvature to correct aberrations.

[0062] In this embodiment, by providing a first-stage near-beam reflector 31 and a second-stage near-beam reflector 32, the near-beam light source 21 can be arranged in a more flexible position. For example, the emitting surface of the near-beam light source 21 can face a direction different from the optical axis of the light-emitting lens 10. The first-stage near-beam reflector 31 collects the light beam in this direction and guides it to the second-stage near-beam reflector 32 located at the focal point. In this way, the near-beam optical path and the far-beam optical path can be spatially separated, avoiding mutual obstruction. At the same time, since the near-beam beam is folded twice, the length of the entire near-beam optical system in the optical axis direction can be further shortened.

[0063] Furthermore, as another embodiment, please continue to refer to... Figures 1-3 To rationally arrange the low beam light source 21, high beam light source 22, heat sink 50, and various reflective elements based on the two-stage folding, and to avoid light path obstruction using the avoidance gap 60, the high and low beam lamp device also includes a heat sink 50. The high beam light source 22 is disposed on the top of the heat sink 50, and the low beam light source 21 is disposed on the side wall of the heat sink 50 facing the light-emitting lens 10. The high beam reflective element 40 is disposed above the high beam light source 22. The first-stage low beam reflective element 31 is disposed between the low beam light source 21 and the light-emitting lens 10, and the second-stage low beam reflective element 32 is disposed above the first-stage low beam reflective element 31. An avoidance gap 60 is formed between the first-stage low beam reflective element 31 and the second-stage low beam reflective element 32 to avoid obstructing the high beam light path.

[0064] Heat sink 50 refers to a component used to dissipate heat from the low beam light source 21 and the high beam light source 22. It can be made of a metal with high thermal conductivity, such as aluminum alloy or copper alloy. Heat sink 50 can have multiple heat dissipation fins or be a solid block structure.

[0065] The top and side walls of the heat sink 50 are used to mount the high beam light source 22 and the low beam light source 21, respectively. The high beam light source 22 is located on the top of the heat sink 50, so that its light-emitting surface faces upward, thereby directing the light upward toward the high beam reflector element 40.

[0066] The low beam light source 21 is disposed on the side wall of the radiator 50 facing the light-emitting lens 10, thereby preventing hot air from rising and causing low heat dissipation efficiency of the low beam light source 21. Under normal circumstances, low beam headlights are used more often while the vehicle is in motion. Therefore, in this embodiment, the low beam headlight is preferentially disposed on the side wall to prioritize the heat dissipation efficiency of the low beam light source 21 and improve the reliability of the headlights during driving.

[0067] To minimize the overall space required, the near-light source 21 is preferably positioned on the side facing the exiting lens 10, thus requiring only two stages of reflection to guide the beam from the near-light source 21 onto the exiting lens 10. (See also...) Figure 4 Because the low beam source 21 is positioned low, the low beam path first needs to be guided upwards. The high beam source 22 is located above the heat sink 50, and refracts the beam towards the output lens 10 through the high beam reflector 40. Please refer to... Figure 5 After refraction, the high beam propagates essentially along the optical axis of the output lens 10. Therefore, the output lens 10 and the high beam reflector 40 are at approximately the same horizontal level. To avoid obstructing the high beam path, please refer to [link / reference needed]. Figure 4 and Figure 5 At the intersection of the high beam and low beam paths, a clearance gap 60 is provided between the first-stage low beam reflector 31 and the second-stage low beam reflector 32 to allow the high beam path to pass smoothly.

[0068] The clearance notch 60 is specifically located in the open space between the first-stage low-beam reflector 31 and the second-stage low-beam reflector 32, allowing the beam of the high-beam path to pass through it. Specifically, after the high-beam reflector 40 reflects the beam emitted by the high-beam light source 22, the beam can pass through the clearance notch 60 between the first-stage low-beam reflector 31 and the second-stage low-beam reflector 32 and continue to be directed towards the light-emitting lens 10. The size of the clearance notch 60 can be adjusted according to the divergence angle and spot size of the high-beam beam.

[0069] In this embodiment, by placing the high beam light source 22 and the low beam light source 21 on the top and sidewall of the heat sink 50 respectively, the two light sources can share the same heat sink 50, thereby reducing the number of heat sinks 50, lowering component costs and space requirements. Simultaneously, the spatial relationship between the high beam reflector 40, the first-stage low beam reflector 31, and the second-stage low beam reflector 32 allows the high beam beam to pass through the clearance gap 60, preventing the low beam and high beam beam paths from blocking each other. Thus, the low beam and high beam beams can propagate independently to the output lens 10, achieving compact high / low beam switching.

[0070] As an alternative implementation, the heat sink 50 can be configured as a single structure or composed of multiple heat sinks, with the high beam light source 22 and the low beam light source 21 respectively placed on different heat sinks, thereby improving heat dissipation efficiency.

[0071] It should be noted that the specific structure of this embodiment includes, but is not limited to, the above-described method. The low beam light source 21 can also be disposed on a side wall opposite to the light-emitting lens 10, and the high beam light source 22 can also be disposed on the side wall or other locations. By combining different installation positions of the high beam light source 22 and the low beam light source 21, the installation space structure of different vehicle models can be adapted to improve compatibility during assembly.

[0072] Furthermore, as another embodiment, in order to reduce the number of parts and assembly tolerances of the low beam reflector, the first-stage low beam reflector 31 and the second-stage low beam reflector 32 are integrally formed from the same optical component. The optical component has a first reflective surface region 311 facing the low beam light source 21 to form the first-stage low beam reflector 31, and a second reflective surface region 321 for reflecting the light beam to the light-emitting lens 10 to form the second-stage low beam reflector 32.

[0073] The first-stage low beam reflector 31 and the second-stage low beam reflector 32 can be installed and fixed by manufacturing them separately and then assembling them. The assembly method includes, but is not limited to, bonding, welding, or snap-fitting.

[0074] In this embodiment, in order to further simplify the assembly process, the assembly steps between the first-level low beam reflector 31 and the second-level low beam reflector 32 are omitted, and the first-level low beam reflector 31 and the second-level low beam reflector 32 can be manufactured by integral molding.

[0075] Specifically, one-piece molding means that the first-level low beam reflector 31 and the second-level low beam reflector 32 are formed in one step during the manufacturing process using the same mold or the same process.

[0076] The first reflective surface region 311 refers to the reflective surface region on the optical component that receives the light beam emitted from the near light source 21 and reflects it to the second reflective surface region 321. The second reflective surface region 321 refers to the reflective surface region located on the second-stage near light reflector 32 that receives the light beam reflected from the first reflective surface region 311 and reflects it to the light-emitting lens 10.

[0077] The first reflective surface region 311 and the second reflective surface region 321 can be obtained by processing different curved surfaces or planes on the same substrate, or they can be formed directly during injection molding.

[0078] By integrally molding the first-stage near-beam reflector 31 and the second-stage near-beam reflector 32 into a single optical component, the positioning and assembly steps between the two reflectors can be eliminated, reducing the number of parts. Simultaneously, since the first reflective surface region 311 and the second reflective surface region 321 are fixed in relative position on the same component, their relative angles and distances are highly consistent, thus ensuring the consistency of the near-beam optical path and the stability of the near-beam pattern.

[0079] Furthermore, as another embodiment, in order to stably reflect the light beam received by the near-beam reflector located at the focal position to the light-emitting lens 10, while leaving space for the high-beam optical path, please refer to [reference needed]. Figure 2The near-light reflecting element, located at the focal point of the light-emitting lens 10, has an angle α between its reflecting surface and the horizontal plane. This angle α can be limited to a certain range, such as 30 degrees to 60 degrees.

[0080] The included angle α refers to the angle between the second reflecting surface on the near-light reflecting element and the horizontal plane, facing the light-emitting lens 10. It can be understood as the tilt angle of the second reflecting surface relative to the horizontal plane.

[0081] When the angle α is between 30 and 60 degrees, the light beam from the first-stage near-beam reflector 31 or the near-beam source 21 can reach the reflective surface at a suitable incident angle and then be reflected before heading towards the exiting lens 10. If the angle α is less than 30 degrees, the reflective surface is too gentle, and the reflected light beam is prone to deflecting above or below the exiting lens 10, making it difficult to enter the effective aperture of the exiting lens 10, resulting in a decrease in the brightness and uniformity of the near-beam pattern. If the angle α is greater than 60 degrees, the reflective surface is too steep, and the reflected light beam may be excessively deflected downwards, and the reflective surface may occupy too much space required for the high-beam path, causing the high-beam beam to be partially blocked.

[0082] Therefore, setting the included angle to 30 to 60 degrees can ensure the space for the high beam while achieving effective reflection of the low beam.

[0083] Preferably, the included angle can be 36 degrees, 38 degrees, 40 degrees, 42 degrees, 44 degrees, 46 degrees, 48 ​​degrees, 50 degrees, 52 degrees, or 54 degrees. All of these values ​​fall within the range of 3 to 60 degrees, avoiding the extreme values ​​of 30 degrees, 35 degrees, 55 degrees, and 60 degrees, thus further optimizing the spatial balance between the near-beam and far-beam optical paths.

[0084] Furthermore, the angle between the second-stage near-light reflector 32 and the horizontal plane can be finely adjusted according to the focal length of the light-emitting lens 10 and the position of the light source.

[0085] Furthermore, as another embodiment, in order to form the required cutoff line for the low beam pattern without setting a movable light shield, please refer to... Figure 3 A low beam cutoff line structure 70 can be set on the low beam reflector located at the focal position.

[0086] The low beam cutoff line structure 70 refers to a shape feature located on the reflective surface or edge of the low beam reflector. This shape feature blocks or changes the direction of part of the beam when it is reflected by the low beam reflector, thus creating a bright-dark boundary on the image plane of the light-emitting lens 10. The low beam cutoff line structure 70 can be a step, notch, or zigzag structure formed at the root of the second-stage low beam reflector 32. When the low beam is reflected by the second-stage low beam reflector 32, the cutoff line structure prevents some light from being reflected in its original direction, thus forming a clear bright-dark cutoff line on the light distribution screen. This bright-dark cutoff line can prevent the low beam pattern from dazzling drivers of oncoming and ahead vehicles, while retaining the lower bright area for road lighting.

[0087] In this embodiment, by integrating the low beam cutoff line structure 70 onto the low beam reflector located at the focal point, the movable shading plate can be eliminated, allowing the low beam reflector to simultaneously perform the functions of beam reflection and cutoff line formation. Thus, the anti-glare requirement for the low beam pattern is achieved without adding any moving parts.

[0088] In addition, the low beam cutoff line structure 70 can be a protrusion or groove formed on the reflective surface, or it can be a specific contour line at the edge of the reflective surface.

[0089] Furthermore, as another embodiment, in order to switch between low beam mode, high beam mode, and a combination of low beam and high beam modes, the high and low beam headlight device may also include a controller. The controller is electrically connected to the low beam source 21 and the high beam source 22 respectively, and the controller is configured to have a low beam mode that illuminates only the low beam source 21, a high beam mode that illuminates only the high beam source 22, and a combination mode that illuminates both the low beam source 21 and the high beam source 22 simultaneously.

[0090] The controller is an electronic component used to control the on or off state of the low beam light source 21 and the high beam light source 22. It can be a microcontroller, a drive circuit, or part of the vehicle body control unit.

[0091] The controller is electrically connected to the low beam light source 21 and the high beam light source 22 respectively, and can output drive current to the low beam light source 21 and the high beam light source 22 respectively according to the received control command or switch signal.

[0092] Low beam mode refers to the state where only the low beam light source 21 is lit and the high beam light source 22 is off. At this time, the high and low beam headlights only output low beam light.

[0093] High beam mode refers to the state where only the high beam light source 22 is lit and the low beam light source 21 is off. At this time, the high and low beam headlights only output the high beam pattern.

[0094] The combined mode refers to the state where both the low beam light source 21 and the high beam light source 22 are lit simultaneously. In this mode, the high and low beam headlights simultaneously output both low beam and high beam patterns. Please refer to [link / reference]. Figure 10 and Figure 11 This forms a superimposed lighting pattern.

[0095] By configuring the controller and enabling the three modes mentioned above, the lighting status can be flexibly switched according to different driving scenarios.

[0096] For example, use low beam mode when meeting oncoming traffic, high beam mode when there are no oncoming vehicles, and a combination mode when wider and brighter lighting is needed. Since the switching process only involves controlling the on / off state of the light source and does not involve the movement of the moving light shield, the switching is quick and without mechanical noise.

[0097] In addition, the controller can also have the function of automatically switching modes based on vehicle speed, ambient brightness, or oncoming vehicle detection signals.

[0098] In addition, to solve the above problems, the present invention also proposes a vehicle lighting device, wherein the vehicle lighting device is equipped with the high and low beam lamps as described above.

[0099] Vehicle lighting equipment refers to devices installed at the front or rear of a vehicle for lighting or signaling functions. In this embodiment, the vehicle lighting equipment can be a headlight, particularly a vehicle headlight with both low beam and high beam functions. It is an assembly capable of being independently installed on a vehicle and providing the corresponding lighting function.

[0100] The vehicle lighting equipment includes the high and low beam headlight assembly as described in any of the foregoing embodiments, and also includes, for example, a lamp housing, a lens, a circuit interface, and a mounting bracket. The high and low beam headlight assembly is mounted within the lamp housing, and the light-emitting lens 10 emits a beam of light towards the front of the vehicle or in a direction required by regulations. The lens may be positioned in front of the light-emitting lens 10 for further light distribution of the emitted beam or to protect internal optical elements. The circuit interface provides power and control signals to the high and low beam headlight assembly. The mounting bracket secures the vehicle lighting equipment to the vehicle body.

[0101] Because the high and low beam headlight assembly eliminates the need for a moving light shield and motor, the number of parts in the headlight system is reduced, simplifying the assembly process and eliminating noise from the moving light shield during use. Furthermore, since both the low and high beams are projected from the same light-emitting lens 10, the overall optical axis of the headlight system is highly consistent, which is beneficial for beam pattern calibration and regulatory compliance. Simultaneously, the shared light-emitting lens 10 makes the headlight system more compact in structure.

[0102] In addition, the vehicle lighting equipment may include at least one of daytime running lights, turn signals, or fog lights.

[0103] In addition, to solve the above problems, the present invention also proposes a vehicle equipped with the above-described vehicle lighting device.

[0104] A vehicle refers to a means of transportation that is driven by a power unit and travels on or off roads. In this embodiment, the vehicle can be a passenger car, commercial vehicle, off-road vehicle, motorcycle, or special vehicle. The vehicle is equipped with the aforementioned lighting equipment, which can be installed on the left and right sides of the front of the vehicle to provide the driver with illumination of the road ahead.

[0105] The vehicle may also include a body controller, a power system, and a human-machine interface. The body controller is electrically connected to the lighting equipment and is used to send mode switching commands. The power system provides power to the lighting equipment. The human-machine interface receives driver input and generates corresponding control signals.

[0106] The vehicle's lighting system can provide low beam, high beam, and combined low and high beam illumination. Because the lighting system eliminates the need for a movable sun visor and motor, there is no noise generated by the movement of the sun visor when switching between high and low beams, improving driving comfort. At the same time, the reduction in the number of parts and the simplification of the assembly structure lowers the manufacturing cost of the overall vehicle lighting system.

[0107] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A high / low beam lamp device, characterized in that, The high and low beam lighting device includes: The system includes an output lens (10), a low beam source (21), and a high beam source (22). The beam of the low beam source (21) is emitted from the output lens (10) through the low beam optical path; the beam of the high beam source (22) is emitted from the output lens (10) through the high beam optical path; the low beam source (21) and the high beam source (22) are configured to selectively illuminate either the low beam source (21) or the high beam source (22) to switch between low beam and high beam. At least one low-beam reflector is provided in the low-beam optical path. The low-beam reflector is located at the focal position of the light-emitting lens (10) to fold and reflect the light beam of the low-beam light source (21) to the light-emitting lens (10). A high-beam reflector (40) is provided in the high-beam optical path. The high-beam reflector (40) is used to reflect the light beam of the high-beam light source (22) to the light-emitting lens (10).

2. The high / low beam lamp device as described in claim 1, characterized in that, The low beam path is provided with a first-stage low beam reflector (31) and a second-stage low beam reflector (32), and the second-stage low beam reflector (32) is located at the focal position of the light-emitting lens (10). The first-stage low-light reflector (31) is used to reflect the light beam emitted from the low-light source (21) to the second-stage low-light reflector (32), and the light beam is reflected a second time to the light-emitting lens (10) through the second-stage low-light reflector (32).

3. The high / low beam lamp device as described in claim 2, characterized in that, The high and low beam lamp device also includes a heat sink (50), the high beam light source (22) is disposed on the top of the heat sink (50), and the low beam light source (21) is disposed on the side wall of the heat sink (50) facing the light-emitting lens (10). The high beam reflector (40) is disposed above the high beam light source (22), the first-stage low beam reflector (31) is disposed between the low beam light source (21) and the light-emitting lens (10), and the second-stage low beam reflector (32) is disposed above the first-stage low beam reflector (31). Among them, a clearance (60) is formed between the first-stage low beam reflector (31) and the second-stage low beam reflector (32) to avoid the high beam optical path.

4. The high / low beam lamp device as described in claim 2, characterized in that, The first-stage near-light reflector (31) and the second-stage near-light reflector (32) are integrally formed from the same optical component. The optical component has a first reflective surface area (311) facing the near-light source (21) to form the first-stage near-light reflector (31), and a second reflective surface area (321) for reflecting the light beam to the light-emitting lens (10) to form the second-stage near-light reflector (32).

5. The high / low beam lamp device as described in claim 2, characterized in that, The first-stage low-beam reflector (31) and the high-beam reflector (40) are reflector bowls, and the second-stage low-beam reflector (32) is a reflector.

6. The high / low beam lamp device as described in claim 1, characterized in that, The near-light reflecting element located at the focal position of the light-emitting lens (10) has an angle between its reflecting surface and the horizontal plane, the angle being 30 to 60 degrees.

7. The high / low beam lamp device as described in claim 1, characterized in that, The low beam reflector located at the focal position of the light-emitting lens (10) has a low beam cutoff line structure (70), which is used to form a light and dark cutoff line for the low beam pattern.

8. The high / low beam lamp device as described in claim 1, characterized in that, The high and low beam headlight device also includes a controller, which is electrically connected to the low beam source (21) and the high beam source (22) respectively. The controller is configured to have a low beam mode that only illuminates the low beam source (21), a high beam mode that only illuminates the high beam source (22), and a combined mode that illuminates both the low beam source (21) and the high beam source (22) simultaneously.

9. A vehicle lighting device, characterized in that, The vehicle lighting equipment is equipped with a high and low beam lamp device as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, The vehicle is equipped with the lighting device as described in claim 9.

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