Illumination structure, high-beam and low-beam module and vehicle lamp

Abstract

The utility model discloses a lighting structure, a high-beam and low-beam module and a car lamp, and relates to the technical field of lighting. The lighting structure comprises a low-beam unit, a high-beam unit and a lens, the low-beam unit comprises a low-beam lamp panel and a low-beam thick-wall part, the low-beam lamp panel extends in the vertical direction and is used for emitting light to the low-beam thick-wall part, and the low-beam thick-wall part comprises a light emitting face away from the low-beam lamp panel; the high-beam unit comprises a high-beam thick-wall part, and a reflecting plane is arranged at the top of the high-beam thick-wall part; the lens has a central optical axis. The vertical direction is perpendicular to the central optical axis; light emitted by the light-emitting face comprises direct light and reflected light, the direct light directly enters the lens, the incidence point of the direct light is located below the plane where the focus of the lens is located, and the reflection plane is used for reflecting the reflected light so that the light emitted by the light-emitting face can form a light and shade cut-off line after passing through the lens. According to the design, the light and shade cut-off line can be achieved without additionally arranging a baffle, the structural complexity of the high-beam and low-beam module is reduced, and the production cost and the maintenance cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lighting, especially relates to a lighting structure, high and low beam module and car light. BACKGROUND

[0002] When designing car light, in order to avoid affecting the visual field of oncoming vehicle drivers, the demarcation line that can feel the light and dark significant change, i.e. the cut-off line, needs to be set in the low beam mode. At present, the way of installing a baffle in the car light is mainly used to form the cut-off line in the specific area of the car light, but this way will increase the mechanism complexity of the car light module, and increase the production and maintenance cost of the car light to some extent.

[0003] Therefore, it is necessary to provide a lighting structure, high and low beam module and car light to solve or at least alleviate the above technical problems. SUMMARY

[0004] The utility model discloses a lighting structure, high and low beam module and car light, and aims to solve the technical problem that the structure for forming the cut-off line in the car light increases the production and maintenance cost of the car light.

[0005] To achieve the above object, the utility model provides a lighting structure, comprising:

[0006] The low beam unit comprises a low beam lamp plate and a low beam thick wall part arranged correspondingly, the low beam lamp plate is arranged along the vertical direction and is used for emitting light to the low beam thick wall part, and the low beam thick wall part comprises a light emitting surface away from the low beam lamp plate.

[0007] The high beam unit comprises a high beam thick wall part, and the top of the high beam thick wall part is provided with a reflection plane.

[0008] The lens has a central optical axis.

[0009] The vertical direction is the direction perpendicular to the central optical axis.

[0010] The light emitted by the light emitting surface comprises direct light and reflected light, the direct light is directly emitted from the light emitting surface into the lens, and the incident point is below the central optical axis, and the reflection plane is used for reflecting the reflected light, so that the light emitted by the light emitting surface forms the cut-off line after passing through the lens.

[0011] In an embodiment, the light emitting surface is an arc surface, the distance between the arc surface and the low beam lamp plate gradually increases along the vertical direction and the direction of gradually decreasing height, and the arc surface is used for refracting the light emitted by the low beam lamp plate into the low beam thick wall part.

[0012] In one embodiment, the exit points of the direct ray and the exit points of the reflected ray on the light-emitting surface are arranged sequentially along the direction from the top end of the light-emitting surface to the bottom end of the light-emitting surface.

[0013] In one embodiment, a beam-splitting boundary line is formed on the side of the reflective plane away from the near-light thick-walled member;

[0014] The exit position of the direct ray that passes through the beam splitting boundary line in the lens is the first exit position, and the exit position of the direct ray that does not pass through the beam splitting boundary line in the lens is the second exit position. Along the vertical direction, the first exit position is higher than the second exit position.

[0015] The light emitted from the first exit position falls on the horizontal plane to form the cutoff line between light and dark, and the light emitted from the second exit position falls on the horizontal plane to form a bright area, which is located between the lens and the cutoff line between light and dark.

[0016] In one embodiment, the high beam unit further includes a high beam lamp plate, which is disposed at the bottom of the high beam thick-walled member and is inclined toward the side where the lens is located;

[0017] The high beam thick-walled component includes a focusing part near the high beam headlight panel and a diffusing surface facing the lens. The light emitted from the high beam headlight panel enters the high beam thick-walled component through the focusing part and then enters the lens through the diffusing surface.

[0018] In one embodiment, the side of the low beam thick-walled component facing the low beam panel is provided with a low beam focusing hole, the low beam focusing hole is provided with a first central axis, the low beam panel includes low beam LEDs, and the low beam LEDs are coaxially arranged with the low beam focusing hole;

[0019] The focusing part includes a high beam focusing hole, the high beam focusing hole is provided with a second central axis, and the high beam light panel includes high beam LEDs, the high beam LEDs and the high beam focusing hole are coaxially arranged.

[0020] In one embodiment, the side of the low beam focusing aperture away from the low beam LED is provided with a first arc-shaped protrusion that protrudes toward the low beam LED, and the side of the high beam focusing aperture away from the high beam LED is provided with a second arc-shaped protrusion that protrudes toward the high beam LED.

[0021] This utility model also proposes a high and low beam module, including the lighting structure described in any one of the above embodiments. The high and low beam module further includes a heat sink and a bracket mounted on the heat sink. The heat sink and the bracket enclose an optical cavity. The low beam unit and the high beam unit are both disposed in the optical cavity. The lens is mounted on the end of the bracket away from the heat sink to cover the optical cavity.

[0022] In one embodiment, the heat sink includes a first mounting surface and a second mounting surface. The first mounting surface is vertically arranged, and the second mounting surface is adjacent to the first mounting surface. The second mounting surface is inclined toward the side where the lens is located. The high beam unit also includes a high beam lamp plate, which is disposed at the bottom of the high beam thick-walled component and is fitted onto the second mounting surface.

[0023] This utility model also proposes a vehicle lamp including the high and low beam module as described in any of the above embodiments, and further including a lamp housing and a lamp cover disposed on the lamp housing, wherein the lamp housing and the lamp cover form an accommodating cavity, the high and low beam module is installed in the accommodating cavity, and the lens is disposed facing the lamp cover.

[0024] According to the technical solution provided by this utility model, the lighting structure includes a low beam unit, a high beam unit, and a lens. The low beam unit includes a low beam lamp plate and a low beam thick-walled component, which are correspondingly arranged. The low beam lamp plate extends vertically and is used to emit light to the low beam thick-walled component. The low beam thick-walled component includes a light-emitting surface away from the low beam lamp plate. The high beam unit includes a high beam thick-walled component, and a reflective plane is provided on the top of the high beam thick-walled component. The lens has a central optical axis. The vertical direction is perpendicular to the central optical axis. The light emitted from the light-emitting surface includes direct light and reflected light. The direct light enters the lens directly from the light-emitting surface, and its incident point is located below the plane where the central optical axis is located. The reflective plane is used to reflect the reflected light so that the light emitted from the light-emitting surface forms a cutoff line between light and dark after passing through the lens. This design allows the reflective surface to deflect light falling on it in other directions, effectively making the normally translucent high-beam thick-walled component opaque. Light cannot pass through the component into the lens, and the reflective surface at the top of the component acts as a baffle. This results in a clear cutoff line between light and dark areas in the beam pattern formed by the light rays entering the lens and projecting onto the ground. Thus, a cutoff line can be created in the high and low beam modules without the need for a baffle, reducing production costs, structural complexity, and maintenance costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 A schematic diagram of a structure of an embodiment of the high / low beam module provided by this utility model;

[0027] Figure 2 for Figure 1 A cross-sectional structural diagram of the high and low beam modules provided in the diagram;

[0028] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0029] Figure 4 The light pattern formed on the test plane when the high beam / low beam module provided by this utility model is in low beam mode.

[0030] Explanation of icon numbers:

[0031] 100. High and low beam modules;

[0032] 1. Low beam unit; 11. Low beam panel; 111. Low beam LED; 12. Low beam thick-walled component; 121. Light-emitting surface; 122. Low beam focusing aperture;

[0033] 2. High beam unit; 21. High beam panel; 211. High beam LED; 22. High beam thick-walled component; 221. Reflective plane; 222. Beam splitting boundary line; 223. Diffusion surface; 224. High beam focusing aperture;

[0034] 3. Lens;

[0035] 4. Radiator; 41. First mounting surface; 42. Second mounting surface;

[0036] 5. Bracket; 51. Buckle;

[0037] 6. Optical cavity;

[0038] a) Direct ray; b) Reflected ray; c) Boundary ray; X) Horizontal direction; Y) Vertical direction; F) Cutoff line; P) Bright area; Q) Dark area.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] It should be noted that if the embodiments of this utility model 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.

[0042] Furthermore, if the embodiments of this utility model 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. Therefore, 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 utility model.

[0043] Currently, the cutoff line between light and dark in vehicle lights is mainly formed by a baffle mechanism. There are two main ways to achieve this in vehicle light design: (1) The high beam module and the low beam module are set separately. A fixed baffle is set on one side of the low beam module. In the low beam mode of the vehicle light, part of the light from the low beam module is blocked by the fixed baffle, forming a dividing line with a significant change in light and dark on the ground in front of the vehicle light. (2) The high beam and low beam are integrated into one module, and a rotatable baffle mechanism is set on one side of the high beam and low beam modules. The switching between high beam and low beam is achieved by controlling the flipping of the baffle. In the low beam mode, the baffle flips and blocks part of the light, so that the light forms a clear dividing line between light and dark on the ground. In the high beam mode, the baffle flips open to avoid blocking the light and achieve the high beam effect of the vehicle light.

[0044] However, the applicant's research found that both of the aforementioned methods of implementing the light and dark cutoff lines increase the complexity of the headlight module, making it difficult to reduce the production cost of the headlights. Taking a certain model as an example, the average price of the baffle mechanism is 4.9 yuan, and the cost of the baffle mechanism in each car is 9.8 yuan. If this model produces 100,000 vehicles annually, the material cost of the baffle mechanism would be 980,000 yuan. Furthermore, an additional assembly process for the baffle mechanism needs to be added to the vehicle assembly line, requiring specialized technicians to perform the assembly work, increasing labor and management costs. Therefore, adding a baffle mechanism increases the overall production cost of the headlights. In the later stages of use, because the baffle mechanism increases the structural complexity of the headlights, it reduces the operational stability of the headlights. When the baffle mechanism needs repair, the car owner will also have to bear additional repair costs. Therefore, the inclusion of a baffle mechanism increases both the production cost and the subsequent maintenance cost of the headlights. Furthermore, the need to install a baffle mechanism on one side of the headlight's light-emitting module (low beam module or high beam / low beam module) may increase the size of the headlight. This would limit the overall appearance design of the headlight, especially in the modern automotive styling trend of pursuing thinner and flatter designs, making it difficult for larger headlights to meet consumers' aesthetic requirements.

[0045] In view of this, the present invention proposes a lighting structure to solve the above-mentioned technical problems.

[0046] Please see Figures 1 to 3 In one embodiment of this utility model, the lighting structure includes a low beam unit 1, a high beam unit 2, and a lens 3. The low beam unit 1 includes a low beam lamp plate 11 and a low beam thick-walled member 12, which are correspondingly arranged. The low beam lamp plate 11 extends vertically and is used to emit light onto the low beam thick-walled member 12. The low beam thick-walled member 12 includes a light-emitting surface 121 away from the low beam lamp plate 11. The high beam unit 2 includes a high beam thick-walled member 22, the top of which is provided with a reflective plane 221, extending horizontally along the X-axis (see reference). Figure 2 (In the direction indicated by the middle arrow X), the high-beam thick-walled component 22 is disposed between the low-beam thick-walled component 12 and the lens 3, and the three are spaced apart; the lens 3 has a central optical axis; the light emitted from the light-emitting surface 121 includes direct light ray a and reflected light ray b. Direct light ray a directly enters the lens 3 from the light-emitting surface 121, and its incident point is located below the plane where the central optical axis is located. The reflecting surface 221 is used to reflect the reflected light ray b, so that the light emitted from the light-emitting surface 121 forms a light-dark cutoff line F after passing through the lens 3. Wherein, the vertical direction Y is... Figure 2 The direction indicated by the middle arrow Y.

[0047] Specifically, both the low beam thick-walled component 12 and the high beam thick-walled component 22 are transparent or semi-transparent components used to conduct and diffuse light. When the low beam lamp panel 11 emits light, the light is conducted in the low beam thick-walled component 12 to the light-emitting surface 121, and then emitted from the light-emitting surface 121. Please refer to...Figures 2 to 4 In order to improve optical efficiency, most of the light rays emitted from the light-emitting surface 121 directly enter the lens 3. That is, the direct light ray a directly enters the lens 3 and is ultimately projected onto the ground or test plane through the transmission and refraction of the lens 3, forming a bright area P with high brightness. Among them, some of the direct light ray a passes through the boundary line of the reflecting plane 221 near the lens 3. This part of the light ray is denoted as the boundary light ray c. When it enters the lens 3 and is projected onto the ground or test plane, it will form the light cutoff line F. It should be noted that the incident point of the boundary light ray c into the lens 3 is higher than the incident point of the other direct light rays a into the lens 3. After refraction by the lens 3, it can finally form a light pattern on the ground where the bright area P is located between the light cutoff line F and the lens 3. To avoid bright areas P appearing on both sides of the cutoff line F, a reflective plane 221 is provided to reflect the light illuminating the thick-walled component 22. The light illuminating the thick-walled component 22 is the reflected light ray b. By adjusting the size of the reflective plane 221, the reflected light ray b can be made to fall within the reflective plane 221 and be reflected by it. Some of the reflected light can enter the lens 3. After being projected by the lens 3, this part of the light may fall scattered in areas far from the cutoff line F, without affecting the sharpness of the cutoff line F; it may also fall near the cutoff line F, but its illuminance (luminous flux density on the surface) is low, resulting in a low brightness of the light pattern it produces, thus also not affecting the sharpness of the cutoff line F. It should be noted that in this embodiment, the high beam thick wall component 22 is disposed on the oblique lower side of the low beam thick wall component 12. This arrangement ensures that the main body of the high beam thick wall component 22 does not block the propagation path of the direct light a, while allowing the reflective plane 221 on its top surface to receive the reflected light b, thereby acting as a baffle. Ultimately, it can form a clear light and dark cutoff line F while ensuring the brightness of the light pattern of the low beam lamp illuminating the ground or test plane.

[0048] The technical solution of this embodiment involves placing the high beam thick-walled component 22 between the low beam thick-walled component 12 and the lens 3, and providing a reflective plane 221 on the top surface of the high beam thick-walled component 22. Since the reflective plane 221 can reflect light falling on it to other directions, the originally translucent high beam thick-walled component 22 becomes opaque. Light will not propagate through the high beam thick-walled component 22 into the lens 3, making the reflective plane 221 on top of the high beam thick-walled component 22 act as a baffle. This results in the light pattern formed by the light emitted from the light-emitting surface 121 entering the lens 3 and being projected onto the ground by the lens 3 having a clear cutoff line F. Thus, a cutoff line F can be formed in the high and low beam module 100 without the need for a baffle, thereby reducing the production cost of the high and low beam module 100, lowering its structural complexity, and reducing subsequent maintenance costs.

[0049] In one embodiment of this utility model, the reflecting plane 221 is inclined toward the side where the near-beam thick-walled component 12 is located. Defined as follows: the critical angle of the material used to manufacture the far-beam thick-walled component 22 is θ, and the incident angle of the reflected ray b is δ; θ and δ satisfy: δ > θ. In this embodiment, the far-beam thick-walled component 22 is made of PE material, and the surface of the reflecting plane 221 is smoothed. θ is 51°. When the incident angle δ is greater than 51°, that is, when the angle between the reflected ray b and the reflecting plane 221 is less than 39°, the reflected ray b can be reflected in other directions. When setting the tilt angle of the reflecting plane 221, it is necessary to determine the angle at which the reflected ray b strikes the far-beam thick-walled component 22 through numerical simulation. Based on the calculation results, the tilt angle of the reflecting plane 221 is adjusted so that when the reflected ray b falls onto the reflecting plane 221, the angle between the two is less than 39°. It should be understood that the material used to manufacture the high beam thick-walled component 22 can be adjusted according to actual needs. When the material changes, the critical angle θ needs to be recalculated and the tilt angle of the reflective plane 221 needs to be adjusted according to the results of numerical simulation.

[0050] Furthermore, in one embodiment of this utility model, the light-emitting surface 121 is an arc surface, and the distance between the arc surface and the low beam lamp plate 11 gradually increases along the vertical direction Y, which gradually decreases in height. The arc surface is used to refract the light rays from the low beam lamp plate 11 into the low beam thick-walled component 12. Please refer to [link to relevant documentation]. Figure 2 The light-emitting surface 121, which is set as an arc, is used to adjust the direction of the light emitted from the light-emitting surface 121. As the height gradually increases, the distance between the arc surface and the low beam panel 11 gradually decreases. This setting is conducive to the light emitted from the higher position being refracted obliquely downward, so that it enters the area below the horizontal plane where the central optical axis of the lens 3 is located, thereby forming a brighter bright area P on the horizontal plane close to the headlight, rather than forming a brighter bright area P on the horizontal plane far away from the headlight, so that the ground in the low beam mode can be illuminated within a certain range of the driver.

[0051] Specifically, in one embodiment of this utility model, along the direction from the top to the bottom of the light-emitting surface 121, the exit points of the direct ray a and the reflected ray b on the light-emitting surface 121 are arranged sequentially. That is, the exit point of the direct ray a is higher than the exit point of the reflected ray b. This arrangement ensures that the high beam thick-walled component 22 does not block the direct ray a, but only blocks and reflects the reflected ray b. Through this arrangement, it is possible to ensure that the direct ray a directly enters the lens 3, and that the reflected ray b falls on the reflecting plane 221, so that when the light emitted by the low beam panel 11 finally falls to the ground, a clear cutoff line F is formed, and a brighter area P can be formed between the cutoff line F and the headlight.

[0052] Furthermore, in one embodiment of this invention, a beam-splitting boundary line 222 is formed on the side of the reflective plane 221 away from the near-beam thick-walled member 12; the exit position of the direct ray a passing through the beam-splitting boundary line 222 in the lens 3 is the first exit position, and the exit position of the direct ray a not passing through the beam-splitting boundary line 222 in the lens 3 is the second exit position. Along the vertical direction Y, the first exit position is higher than the second exit position; the ray emitted from the first exit position falls on the horizontal plane to form a cutoff line F, and the ray emitted from the second exit position falls on the horizontal plane to form a bright area P. The bright area P is located between the lens 3 and the cutoff line F. The beam-splitting boundary line 222 extends along the top of the far-beam thick-walled member 22. Please refer to [link to previous section]. Figure 2 and Figure 4 The ray of direct light a that passes through the beam splitting boundary line 222 is called boundary ray c. Due to the refraction and scattering of light, the direction of light propagation has a certain error. As a result, when the boundary ray c falls to the ground after passing through lens 3, the resulting cutoff line F has a certain width. The width of the cutoff line F can be changed by the relative position between the near beam thick-walled component 12 and the far beam thick-walled component 22, or by changing the focal length of lens 3. The specific setting can be selected according to the actual needs of those skilled in the art. In order to place the bright area P between the cutoff line F and lens 3, the exit point of the boundary ray c after being transmitted through lens 3 needs to be higher than the exit point of the other direct light rays a after being transmitted through lens 3, that is, the first exit position needs to be higher than the second exit position. The function of placing the bright area P between the cutoff line F and lens 3 is to provide the driver with a good field of vision while avoiding affecting the field of vision of the drivers of oncoming vehicles.

[0053] In one embodiment of this utility model, the high beam unit 2 further includes a high beam lamp plate 21, which is disposed at the bottom of the high beam thick-walled member 22 and is inclined towards the side where the lens 3 is located. The high beam thick-walled member 22 includes a focusing part near the high beam lamp plate 21 and a diffusing surface 223 facing the lens 3. The light emitted from the high beam lamp plate 21 enters the high beam thick-walled member 22 through the focusing part and then enters the lens 3 through the diffusing surface 223. Please refer to [link to relevant documentation]. Figure 2The high beam panel 21 is tilted towards the side where the lens 3 is located, and the high beam thick-walled component 22 is tilted in the same direction. This avoids the formation of a reflective plane 221 in front of the high beam thick-walled component 22, i.e., the diffuser surface 223, which would affect the light emission effect of the high beam thick-walled component 22. In other words, if the high beam thick-walled component 22 is set vertically or tilted towards the low beam thick-walled component 12, the reflective plane 221 will inevitably encroach on the diffuser surface 223 when it is formed, thus affecting the light emission effect of the diffuser surface 223. In addition, the high beam thick-walled component 22 and the high beam panel 21 are tilted in the same direction, and a focusing part is provided at the bottom of the high beam thick-walled component 22. This allows the light emitted by the high beam panel 21 to enter the high beam thick-walled component 22 as much as possible, thereby reducing light energy waste and improving optical efficiency.

[0054] Furthermore, in one embodiment of this utility model, the low beam thick-walled component 12 has a low beam focusing hole 122 on the side facing the low beam headlight panel 11. The low beam focusing hole 122 has a first central axis. The low beam headlight panel 11 includes low beam LEDs 111, which are coaxially arranged with the low beam focusing hole 122. The focusing part includes a high beam focusing hole 224, which has a second central axis. The high beam headlight panel 21 includes high beam LEDs 211, which are coaxially arranged with the high beam focusing hole 224. Please refer to [link to relevant documentation]. Figure 2 Both the low beam headlight panel 11 and the high beam headlight panel 21 are equipped with light sources. To improve the focusing effect and reduce light energy waste, the low beam thick-walled component 12 has a low beam focusing hole 122 on the side facing the low beam headlight panel 11, and the focusing part in the high beam thick-walled component 22 is set as a high beam focusing hole 224. The light emitted by the low beam LED 111 enters the low beam focusing hole 122. The light is refracted and reflected in the low beam focusing hole 122 and enters the main body of the low beam thick-walled component 12. The low beam focusing hole 122 makes it difficult for the light entering it to escape, thereby reducing the waste of light energy emitted by the low beam LED 111. Similarly, the high beam focusing hole 224 can also focus the light emitted by the high beam LED 211 into the high beam focusing hole 224 and make it difficult for this part of the light to escape, thereby reducing the waste of light energy emitted by the high beam LED 211. By setting the near beam focusing aperture 122 and the far beam focusing aperture 224, the overall luminous efficiency of the lighting structure can be improved.

[0055] In one embodiment, the low beam focusing aperture 122 has a first arc-shaped protrusion facing the low beam lamp 111 on the side away from the low beam lamp 111, and the high beam focusing aperture 224 has a second arc-shaped protrusion facing the high beam lamp 211 on the side away from the high beam lamp 211. The presence of the first and second arc-shaped protrusions increases the surface area of ​​the low beam focusing aperture 122 and the high beam focusing aperture 224, resulting in more uniform light from the low beam lamp 111 entering the low beam thick-walled component 12 through the low beam focusing aperture 122, and also more uniform light from the high beam lamp 211 entering the high beam thick-walled component 22 through the high beam focusing aperture 224. This, to a certain extent, improves the light output effect of the low beam thick-walled component 12 and the high beam thick-walled component 22.

[0056] This utility model also proposes a high and low beam module 100, which includes an illumination structure. The specific structure of the illumination structure is as described in the above embodiments. Since this high and low beam module 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0057] In one embodiment of this utility model, the high / low beam module 100 further includes a heat sink 4 and a bracket 5 mounted on the heat sink 4. The heat sink 4 and the bracket 5 enclose an optical cavity 6. Both the low beam unit 1 and the high beam unit 2 are disposed in the optical cavity 6. A lens 3 is mounted on the end of the bracket 5 away from the heat sink 4 to cover the optical cavity 6. Please refer to [link to relevant documentation]. Figure 1 and Figure 2 By placing the near-beam unit 1 and the far-beam unit 2 in the optical cavity 6, and installing the lens 3 at the opening of the optical cavity 6, the bracket 5 and the heat sink 4 can provide protection for the near-beam unit 1 and the far-beam unit 2, preventing them from being affected by the external environment. Furthermore, the lens 3's placement at the opening of the optical cavity 6 allows the light emitted from the lens 3 to smoothly reach the ground or test plane, avoiding any adverse effects such as the bracket 5 blocking this portion of the light. It should be noted that in this embodiment, the bracket 5 is a housing structure, and the lens 3 is installed on the bracket 5 via a clip 51 for easy future maintenance.

[0058] Please see Figure 2In one embodiment of this utility model, the heat sink 4 includes a first mounting surface 41 and a second mounting surface 42. The first mounting surface 41 is vertically arranged, and the second mounting surface 42 is adjacent to the first mounting surface 41 and is inclined towards the side where the lens 3 is located. The high beam unit 2 also includes a high beam lamp plate 21, which is disposed at the bottom of the high beam thick-walled member 22 and is fitted onto the second mounting surface 42. With this arrangement, the low beam lamp plate 11 and the high beam lamp plate 21 are fitted onto the heat sink 4, and the heat generated by both can be more efficiently conducted to the heat sink 4. This allows the heat sink 4 to dissipate the heat generated by both during operation in a timely manner, reducing the operating temperature of the low beam lamp plate 11 and the high beam lamp plate 21 and extending their service life.

[0059] This utility model also proposes a vehicle lamp, including a high / low beam module 100. The specific structure of the high / low beam module 100 is as described in the above embodiments. Since this high / low beam module 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The vehicle lamp also includes a lamp housing and a lamp cover enclosing the lamp housing. The lamp housing and the lamp cover form a receiving cavity, and the high / low beam module 100 is installed in the receiving cavity, with the lens 3 facing the lamp cover. This arrangement allows the lamp cover and lamp housing to provide protection for the high / low beam module 100, and the integration of the high / low beam module 100 into the receiving cavity facilitates the standardization and modularization of vehicle lamp design.

[0060] Please see Figure 4 According to the above embodiment of the present invention, when the high beam module 100 only turns on the low beam lamp 111, three regions are formed on the test plane: a bright area P, a cutoff line F, and a dark area Q. The cutoff line F has a high contrast with the bright area P and the dark area Q, and can form a clear cutoff line F, thereby meeting the regulatory requirements related to the cutoff line F.

[0061] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lighting structure, characterized in that, include: The low beam unit includes a low beam lamp plate and a low beam thick-walled member, wherein the low beam lamp plate extends vertically and is used to emit light to the low beam thick-walled member, and the low beam thick-walled member includes a light-emitting surface away from the low beam lamp plate; The high beam unit includes a high beam thick-walled component, the top of which is provided with a reflective plane; A lens having a central optical axis; The vertical direction is perpendicular to the central optical axis; The light emitted from the light-emitting surface includes direct light and reflected light. The direct light enters the lens directly from the light-emitting surface, and the incident point is located below the central optical axis. The reflecting plane is used to reflect the reflected light so that the light emitted from the light-emitting surface forms a cutoff line between light and dark after passing through the lens.

2. The lighting structure as described in claim 1, characterized in that, The light-emitting surface is an arc surface. Along the vertical direction and in a direction where the height gradually decreases, the distance between the arc surface and the low beam lamp plate gradually increases. The arc surface is used to refract the light rays that enter the low beam thick-walled component from the low beam lamp plate.

3. The lighting structure as described in claim 2, characterized in that, Along the direction from the top end of the light-emitting surface to the bottom end of the light-emitting surface, the exit points of the direct light rays and the exit points of the reflected light rays on the light-emitting surface are arranged sequentially.

4. The lighting structure as described in claim 3, characterized in that, A beam-splitting boundary line is formed on the side of the reflective plane away from the near-light thick-walled component; The exit position of the direct ray that passes through the beam splitting boundary line in the lens is the first exit position, and the exit position of the direct ray that does not pass through the beam splitting boundary line in the lens is the second exit position. Along the vertical direction, the first exit position is higher than the second exit position. The light emitted from the first exit position falls on the horizontal plane to form the cutoff line between light and dark, and the light emitted from the second exit position falls on the horizontal plane to form a bright area, which is located between the lens and the cutoff line between light and dark.

5. The lighting structure as described in claim 1, characterized in that, The high beam unit also includes a high beam lamp plate, which is disposed at the bottom of the high beam thick-walled component and is inclined toward the side where the lens is located. The high beam thick-walled component includes a focusing part near the high beam headlight panel and a diffusing surface facing the lens. The light emitted from the high beam headlight panel enters the high beam thick-walled component through the focusing part and then enters the lens through the diffusing surface.

6. The lighting structure as described in claim 5, characterized in that, The low beam thick-walled component has a low beam focusing hole on the side facing the low beam panel. The low beam focusing hole has a first central axis. The low beam panel includes low beam LEDs, and the low beam LEDs are coaxially arranged with the low beam focusing hole. The focusing part includes a high beam focusing hole, the high beam focusing hole is provided with a second central axis, and the high beam light panel includes high beam LEDs, the high beam LEDs and the high beam focusing hole are coaxially arranged.

7. The lighting structure as described in claim 6, characterized in that, The low beam focusing aperture has a first arc-shaped protrusion facing the low beam lamp on the side away from the low beam lamp, and the high beam focusing aperture has a second arc-shaped protrusion facing the high beam lamp on the side away from the high beam lamp.

8. A high / low beam module, characterized in that, The lighting structure includes any one of claims 1 to 7, wherein the high and low beam module further includes a heat sink and a bracket mounted on the heat sink, the heat sink and the bracket enclose an optical cavity, the low beam unit and the high beam unit are both disposed in the optical cavity, and the lens is mounted on the end of the bracket away from the heat sink to cover the optical cavity.

9. The high / low beam module as described in claim 8, characterized in that, The heat sink includes a first mounting surface and a second mounting surface. The first mounting surface is vertically arranged, and the second mounting surface is adjacent to the first mounting surface. The second mounting surface is inclined toward the side where the lens is located. The high beam unit also includes a high beam lamp plate, which is disposed at the bottom of the high beam thick-walled component and is attached to the second mounting surface.

10. A vehicle light, characterized in that, The high / low beam module as described in any one of claims 8 to 9 further includes a lamp housing and a lamp cover disposed on the lamp housing, the lamp housing and the lamp cover forming an accommodating cavity, the high / low beam module being installed in the accommodating cavity, and the lens being disposed facing the lamp cover.

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