Large-spacing dual-light system and vehicle lamp structure

Abstract

The utility model discloses a large-spacing double-light system, which comprises a light inlet unit, a reflection unit, a light outlet unit and a double-focus rotary condenser, the double-focus rotary condenser comprises a condensation part and a focus part, wherein the condensation part is used for condensing a light source; the bifocus rotary condenser is in condensation butt joint with the light source part, the condensed light source is emitted to the focus part through the condensation part, the condensed light source forms a condensation refraction light path through the focus part, the condensation refraction light path is emitted to the reflection unit to form a reflection light path, and the reflection light path leads out light of the reflection light path through the light outlet unit. The LED lamp has the advantages that the mounting number of LEDs is reduced, the double-light-source butt joint structure is optimized, the illumination effect is improved, the LED lamp is adaptive to multiple sets of PCBs, and the assembly load, the production cost and the operation difficulty are reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a large-pitch dual-beam system and automotive lighting structure. Background Technology

[0002] With the rapid development of automotive lighting technology and consumers' increasing pursuit of lighting effects, production costs and efficiency are also urgent issues for automotive lighting suppliers to address. In existing solutions, light is emitted from LEDs, passes through relevant optical path structures, and then exits from the light-emitting surface to achieve a more uniform lighting effect.

[0003] In traditional projects, known solutions using reflectors and thick-walled reflective components, due to limitations in shape and space, require adjacent reflectors to be connected via sidewalls. This results in different light energy between the connecting sidewall and the reflector when viewed from the side, causing glare, bright spots, large differences in brightness, and uneven illumination, negatively impacting visual quality. This solution offers a structure to improve illumination uniformity. This structure enhances uniformity during observation, providing even and efficient illumination, clear visibility, and versatility. The PCB board can be placed horizontally or vertically, suitable for most shapes, and allows for large LED spacing, saving costs.

[0004] Chinese patent discloses a thick-walled component for improving light emission uniformity (Authorization Announcement No.: CN 220891964 U). This patented technology includes a collimation structure and an optical structure. The optical structure includes two parallel light-incident units and a light-emitting unit, connected by a reflection unit. There is at least one reflection unit, which includes an upper reflection surface and a lower reflection surface, the upper and / or lower reflection surface having a V-shaped structure. The collimation structure is disposed on the light-incident unit. Light enters the light-incident unit through the collimation structure, then enters the V-shaped structure of the reflection unit. After total internal reflection on both surfaces of the V-shaped structure, the light exits through the light-emitting unit. This invention, a thick-walled component for improving light emission uniformity, makes reasonable use of light efficiency, improves illumination of dark areas, saves on LED usage, and reduces costs. However, some shortcomings still exist:

[0005] 1. The collimation structure in the comparison file is a single-source docking structure, and the light from a single-source structure can only be monochromatic.

[0006] 2. In the comparison file, the light incident position of the light incident unit is a smooth and continuous integral structure. The collimation structure evenly distributed on this structure needs to control the spacing to avoid light overflow. Such a structure that controls the spacing will indirectly increase the number of LEDs used.

[0007] 3. The collimation structure in the comparison file is located on the upper plane of the light-incident unit. However, during the adaptation process to the PCB board, the light source mounting position on the PCB board needs to be adjusted. During installation, the PCB board will be pressed from top to bottom by the assembled components or the light source output end, thus requiring the preparation of a suitable board type based on this situation. Therefore, the number of adaptable board types is relatively small. Summary of the Invention

[0008] The technical problem to be solved by this utility model is: In order to solve the technical problems in the prior art, this utility model provides a large-pitch dual-light system. This application has the advantages of saving the number of LEDs installed, optimizing the dual light source docking structure, improving the lighting effect, adapting to multiple PCB boards, and reducing assembly load, production cost and operation difficulty.

[0009] The technical solution adopted by this utility model to solve its technical problem is: a large-pitch dual-beam system, comprising: an incident light unit; the incident light unit includes an incident light end and a dual-focus rotating condenser disposed on the incident light end; a first total reflection surface is formed between adjacent dual-focus rotating condensers; the dual-focus rotating condenser includes a focusing part disposed opposite to each other; the focusing part collimates the light source emitted from the focal point in the vertical direction, and the first total reflection surface collimates the light source emitted from the focal point in the horizontal direction.

[0010] Furthermore, the light-concentrating part includes a first light-concentrating part, a fourth light-concentrating part, a second light-concentrating part, and a third light-concentrating part arranged sequentially;

[0011] The first and third light-concentrating parts are arranged in a mirror image structure;

[0012] The second focusing section of the fourth focusing section has a mirror-image distribution structure;

[0013] The openings of the first and third focusing sections are aligned with the focusing point of the light source section.

[0014] The light source emitted from the focal point is reflected by the first and second focusing parts and then emitted in parallel.

[0015] The light source emitted from the focal point is reflected by the third and fourth focusing units and then projected parallel to the light source. Specifically, to provide focused light and to project it horizontally into the incident light unit, a reflecting unit is used to achieve uniform light distribution and reflection. The processed light is more uniform and softer than the focused light, and avoids defects such as bright spots and obvious bright-dark distribution.

[0016] Furthermore, the light incident unit includes a light incident end and a dual-focus rotating condenser;

[0017] The dual-focus rotating condenser is integrally connected to the light-incident end;

[0018] A V-shaped groove is formed between adjacent light-incident ends, and the groove surface of the V-shaped groove is a first total internal reflection surface. To reduce the number of LEDs installed and improve their luminous efficiency, this application incorporates V-shaped grooves along the light-incident ends of the light-incident unit's plate structure. These V-shaped grooves evenly divide the light-incident ends, and their design also occupies a portion of the light-incident unit's plate structure, thus reducing the number of LEDs required. Furthermore, the dual-focus rotating condenser employs a dual-light-source connector structure, allowing for the simultaneous incidence of two sets of light. To facilitate the installation of the light source structure, this application designs the light-incident ends as arc-shaped structures to accommodate the light-source connectors.

[0019] Furthermore, the dual-focus rotating concentrator is installed in either a vertical or horizontal direction. A horizontally installed dual-focus rotating concentrator is located on the front end face of the light-incident end; a vertically installed dual-focus rotating concentrator is located on the bottom end face of the light-incident end. To facilitate installation of the overall structure in either the horizontal or vertical direction, this application provides two installation structures for the dual-focus rotating concentrator: one vertical and one horizontal.

[0020] Furthermore, the horizontally mounted dual-focus rotating condenser is used to horizontally introduce the incident light source into the incident light end through the second total reflection surface to form a second focusing light path;

[0021] A vertically mounted dual-focus rotating condenser is used to horizontally introduce the incident light source into the incident light head, forming the first focusing optical path. Specifically, to introduce the incident light from the irregularly shaped laser into the incident light head, the horizontally mounted dual-focus rotating condenser needs to reflect the light through a first total internal reflection surface to complete the introduction process. The vertically mounted dual-focus rotating condenser, however, directly introduces the light into the incident light head.

[0022] Furthermore, it also includes a reflecting unit and a emitting unit located behind the light-incident unit. The light emitted from the light-incident unit is reflected by the reflecting unit and then emitted from the emitting unit. The reflecting unit includes a first reflecting surface and a second reflecting surface arranged in parallel, and the first reflecting surface and the second reflecting surface form a reflection angle with the horizontal direction.

[0023] Furthermore, at least one side of the first reflective surface and the second reflective surface has a smooth surface structure;

[0024] Alternatively, at least one of the first and second reflective surfaces may have a textured or patterned structure.

[0025] Alternatively, at least one of the first and second reflecting surfaces may have an alternating stepped structure. To prevent bright spots, large differences in brightness, and uneven illumination during the reflection of light through the thick-walled structure of the reflecting unit, the first and second reflecting surfaces may employ a smooth surface, a textured or patterned structure, or an alternating stepped structure.

[0026] Furthermore, the light-emitting surface is a uniformly distributed pattern of raised corn kernels on its end face. Specifically, to achieve a more uniform distribution of emitted light, this application uses the raised pattern of corn kernels as the light-emitting surface.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1. In this utility model, the light-incident end is evenly divided by the "V"-shaped opening of the light-incident unit. The light guide plate with limited size is made into a uniformly divided structure. The light-incident end is installed on both sides of each group of openings. The divided openings can retain a certain size, thus reducing the number of light-incident end installed at the position of the light-incident unit.

[0029] 2. In this invention, the light-incident end is evenly divided by the "V"-shaped opening of the light-incident unit, and the inner wall of the opening forms a total reflection surface, which can improve the light-incident efficiency of the light-incident end.

[0030] 3. This utility model features a dual-light source installation structure at the light-inlet end. This dual-light source installation structure allows two sets of light of different colors to be introduced into the same light-inlet unit, thereby improving the lighting effect.

[0031] 4. The light-incident end designed at the position of the light-incident unit adopts a horizontal installation structure and a vertical installation structure. These two structures can complete the support installation structure with the PCB board below and the light-incident unit above, avoiding the PCB board being squeezed or the fixing structure needing to contact the light-incident unit; it is compatible with multiple types of PCB boards. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Figure 1 This is a schematic diagram of a large-pitch dual-beam system with a vertically mounted dual-focus rotating concentrator according to this utility model.

[0034] Figure 2 This is a schematic diagram of a large-pitch dual-beam system with a horizontally mounted dual-focus rotating concentrator according to this utility model.

[0035] Figure 3 for Figure 2 A bottom view;

[0036] Figure 4 for Figure 1 The optical path demonstration diagram.

[0037] Figure 5 for Figure 2 The optical path demonstration diagram.

[0038] Figure 6 for Figure 3 A partial schematic diagram.

[0039] In the diagram: 1. Light-incident unit; 2. Reflection unit; 3. Light-outceasing unit; 4. Dual-focus rotating condenser; 5. Light-out surface; 6-1. First condensing section; 6-2. Third condensing section; 7-1. Second condensing section; 7-2. Fourth condensing section; 8. Light-incident end; 9. First total reflection surface; 10. Second total reflection surface; 11. First reflection surface; 12. Second reflection surface; 13. First condensing optical path; 14. Second condensing optical path. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0041] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The working principle of this utility model is as follows: This application uses two sets of dual-light systems for the light transmission process. Both sets of dual-light systems use a dual-focus rotating concentrator 4 to connect the concentrating part of the dual-light docking with the light source. During the connection process of the light source, the optical fiber is focused and refracted through the focal part of the middle section of the dual-focus rotating concentrator 4.

[0044] The refracted light rays in the two sets of dual-beam systems will be directed toward reflector 2 in the following manner:

[0045] 1. The dual-focus rotating condenser 4 is installed vertically in a dual-light system structure. The light emitted from the focal point is directed horizontally along the light-inlet end 8 to the reflection unit 2. The reflection unit 2 uses the reflection surface to uniformly distribute the light. After reflection, the light finally passes through the light-outlet unit 4 and is emitted from the light-outlet surface 5.

[0046] 2. In a dual-beam system structure where the dual-focus rotating condenser 4 is installed horizontally, the light emitted from the focal point is refracted along the first total internal reflection surface 9 located at the light entrance end 8. Because the dual-focus rotating condenser 4 is located at the bottom end face of the light entrance end 8 in this structure, a set of total internal reflection surfaces is needed to perform initial refraction of the light, allowing the light to come into contact with the reflecting unit 2 in a horizontal state. The reflecting unit 2 uses the reflecting surface to uniformly distribute the light. After reflection, the light finally passes through the light exiting unit 4 and is emitted from the light exiting surface 5. The reflecting unit 2, through its own refraction structure, can further improve the uniform distribution efficiency of the light.

[0047] like Figures 1 to 5 As shown, this embodiment includes light-incident unit 1, light-reflecting unit 2, and light-emitting unit 3;

[0048] The light incident unit 1 includes a light incident end 8 and a dual-focus rotating condenser 4 disposed on the light incident end 8;

[0049] The dual-focus rotating condenser 4 includes a condensing part and a focal part arranged opposite to each other; light is incident on the focal part, the focal part introduces the light into the light inlet, the light passing through the light inlet is incident on the reflecting unit 2, the reflecting unit 2 reflects the light to the light outlet unit 3 and emitted.

[0050] The focusing section includes a first focusing section, a fourth focusing section, a second focusing section, and a third focusing section arranged sequentially. The first and third focusing sections are arranged in a mirror image structure, as are the fourth and second focusing sections. The openings of the first and third focusing sections are aligned with the focusing point of the light source section.

[0051] The light source emitted from the focal point is reflected by the first and second focusing parts and then emitted in parallel. The light source emitted from the focal point is also reflected by the third and fourth focusing parts and then emitted in parallel. The first focusing part 6-1 and the second focusing part 7-1 share a single focal point, and the third focusing part 6-2 and the fourth focusing part 7-2 share another focal point. The purpose is to convert the light rays originating from the focal point into parallel light.

[0052] The dual-focus rotating condenser 4 is integrally connected to the light-incident end 8. A "V"-shaped groove is formed between adjacent light-incident ends 8, and the groove surface of the "V"-shaped groove is the second total reflection surface 10. The light-emitting surface 5 has a uniformly distributed corn kernel-patterned end face.

[0053] The incident light unit 1 introduces two different light sources into the reflecting unit 2 through the dual-focus rotating condenser 4. The reflecting surface of the reflecting unit 2 achieves uniform reflection, allowing the focused light to be evenly distributed, resulting in better illumination. When viewed from the side, there will be no side wall reflections, bright spots, large differences in brightness, or uneven illumination during the illumination process.

[0054] The dual-focus rotating condenser 4 is connected to two sets of light source ends via a focusing section. The light generated by the light source is focused by the focal section, and the focused light is then guided by the light-incident end 8. The guided focused light is uniformly distributed by the reflective surface of the reflective unit 2. In this way, the focused light becomes uniform in illumination due to the reflection of the reflective surface, and there will be no local bright spots. There will also be no difference in brightness caused by local focused light not being processed by the reflective surface. Finally, the reflected light is emitted through the light-exiting surface 5. The dual-focus rotating condenser 4 is integrally connected to the light-incident end 8, and the first total reflection surface (10) has a V-shaped structure.

[0055] A horizontally mounted dual-focus rotating condenser 4 is located on the front end face of the light-incident end 8; the horizontally mounted dual-focus rotating condenser 4 is used to horizontally introduce the light source into the light-incident end 8 through the first total reflection surface 9.

[0056] The horizontally mounted dual-focal rotating condenser 4 focuses the incident light from a horizontal light source. This focused light undergoes a focusing and refraction process through the focusing section. The angle of this refraction requires auxiliary reflection guidance from the first total internal reflection surface 9 of the light-incident end 8. The focused light rays, guided by this auxiliary reflection, are then incident horizontally along the light-incident end 8 towards the reflecting unit 2. This allows for installation on the light source end of the PCB board, where the light source end can select the light guide structure of the horizontally mounted dual-focal rotating condenser 4 according to its installation orientation requirements.

[0057] Example 3 differs from Example 2 in that:

[0058] A vertically mounted dual-focal rotating condenser 4 is used to horizontally introduce the incident light source into the incident light head 8; the vertically mounted dual-focal rotating condenser 4 is located on the bottom end face of the incident light head 8. The focused light refracted from the focal point of the vertically mounted dual-focal rotating condenser 4 enters the incident light head 8 in a horizontal direction, requiring no auxiliary adjustment. This adapts to the installation of light source heads on PCB boards, allowing the light source head on the PCB board to select the vertically mounted dual-focal rotating condenser 4 according to its own installation orientation requirements. The vertically mounted dual-focal rotating condenser 4 is suitable for both vertically and horizontally placed PCB boards.

[0059] The vertically mounted dual-focus rotating condenser 4 is integrally connected to the bottom plane of the light-incident end 8. This connection method differs from the previous top-plane mounting structure. The difference lies in the fact that the bottom-plane mounted dual-focus rotating condenser 4 can form a supporting mounting structure with the light source end on the PCB board; while the top-plane mounting structure forms a frame-like structure between the light source end and the PCB board. Since a frame-like structure on the PCB board would lead to a decrease in its own balance, the bottom-supported mounting structure of the dual-focus rotating condenser 4 in this application does not affect the balance of the PCB board.

[0060] Example 4, based on Example 2 or Example 3:

[0061] The dual-focus rotating concentrator 4 forms a horizontal incident light path with the light-incident end 8. This light path can effectively reduce the light scattering efficiency. At the same time, the "V"-shaped groove on the side of the light-incident end can further concentrate the light through the second total reflection surface 10, thereby improving the light utilization efficiency.

[0062] Example 5, based on Example 4:

[0063] The reflective surface includes a first reflective surface 11 and a second reflective surface 12; the first reflective surface 11 and the second reflective surface 12 form a reflection angle with the horizontal direction; the first reflective surface 11 and the second reflective surface 12 are parallel in structure. At least one side of the first reflective surface 11 and the second reflective surface 12 has a smooth surface structure; or at least one side of the first reflective surface 11 and the second reflective surface 12 has a textured or patterned structure; or at least one side of the first reflective surface 11 and the second reflective surface 12 has an alternating stepped structure.

[0064] To further improve the reflective effect of the reflective surface, this application sets a reflection angle between the reflective surface and the horizontal direction, and the preferred value of the reflection angle is in the range of 40°-50°.

[0065] This application also makes some improvements to the structure of the reflective surface:

[0066] The reflective surface can be structured as a smooth surface, a textured surface, a patterned surface, or a stepped structure with alternating concave and convex surfaces. These structures can further distribute the concentrated light rays evenly, so that the light rays processed by this structure can be emitted along the light-emitting surface 5 in a uniformly dispersed form.

[0067] The reflective surface is structured as a textured surface, which can further distribute the gathered light evenly. Therefore, the light processed by this structure can be emitted along the light-emitting surface 5 in a uniformly dispersed form.

[0068] The reflective surface can be structured as a smooth surface, a textured surface, a patterned surface, or a stepped structure with alternating concave and convex surfaces. These structures can further distribute the concentrated light rays evenly, so that the light rays processed by this structure can be emitted along the light-emitting surface 5 in a uniformly dispersed form.

[0069] The reflective surface can be structured as a smooth surface, a textured surface, a patterned surface, or a stepped structure with alternating concave and convex surfaces. These structures can further distribute the concentrated light rays evenly, so that the light rays processed by this structure can be emitted along the light-emitting surface 5 in a uniformly dispersed form.

[0070] In summary, this solution offers a structure that improves the uniformity of LED illumination. This structure enhances uniformity during observation, resulting in more even and efficient illumination, clearer visual visibility, and versatility. The PCB board can be placed horizontally or vertically, suitable for most design configurations, and allows for a wider LED spacing, thus saving costs.

[0071] The lighting system employs a dual-light source installation structure. During operation, the two light sources are activated asynchronously, resulting in different colors or shapes for the headlights. For example, the low beam and turn signals may display different colors.

[0072] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A wide-pitch dual-beam system, characterized in that, include: Incident light unit (1); The light-incident unit (1) includes a light-incident end (8) and a dual-focus rotating condenser (4) disposed on the light-incident end (8); a first total reflection surface (10) is formed between adjacent dual-focus rotating condensers. The dual-focus rotating condenser (4) includes a focusing section arranged opposite to each other; the focusing section is collimated in the vertical direction to the light source emitted from the focus, and the first total reflection surface is collimated in the horizontal direction to the light source emitted from the focus.

2. The large-pitch dual-beam system according to claim 1, characterized in that, The light-concentrating part includes a first light-concentrating part (6-1), a fourth light-concentrating part (7-2), a second light-concentrating part (7-1), and a third light-concentrating part (6-2) arranged sequentially. The first focusing part (6-1) and the third focusing part (6-2) are arranged in a mirror image structure; The fourth focusing part (7-2) and the second focusing part (7-1) have a mirror-image distribution structure; The openings of the first focusing section (6-1) and the third focusing section (6-2) are aligned with the focusing point of the light source section; The light source emitted from the focal point is reflected by the first focusing part (6-1) and the second focusing part (7-1) and then emitted in parallel. The light source emitted from the focal point is reflected by the third focusing part (6-2) and the fourth focusing part (7-2) and then emitted in parallel.

3. A large-pitch dual-beam system according to claim 2, characterized in that, The light sources directed at the first focusing part (6-1) and the third focusing part (6-2) are two independent light sources.

4. A large-pitch dual-beam system according to claim 1, characterized in that, The dual-focus rotating condenser (4) is integrally connected to the light-incident end (8), and the first total reflection surface (10) has a V-shaped structure.

5. A large-pitch dual-beam system according to claim 1, characterized in that, The dual-focus rotating concentrator (4) is installed in a vertical or horizontal direction.

6. A large-pitch dual-beam system according to claim 5, characterized in that, The vertically mounted dual-focus rotating condenser (4) is located on the bottom end face of the light-incident end (8); A vertically mounted dual-focus rotating condenser (4) is used to horizontally introduce the incident light source into the incident light end (8) to form the first focusing light path (13).

7. A large-pitch dual-beam system according to claim 5, characterized in that, A horizontally oriented dual-focus rotating condenser (4) is located on the front end face of the light-incident end (8); A horizontally mounted dual-focus rotating condenser (4) is used to horizontally introduce the incident light source into the incident light end (8) through the second total reflection surface (9) to form a second focusing light path (14).

8. A large-pitch dual-beam system according to claim 1, characterized in that, It also includes a reflection unit (2) and a light-emitting unit (3) located behind the light-incident unit (1). The light emitted from the light-incident unit (1) is reflected by the reflection unit (2) and then emitted from the light-emitting unit (3). The reflection unit (2) includes a first reflection surface (11) and a second reflection surface (12) arranged in parallel. The first reflection surface (11) and the second reflection surface (12) form a reflection angle with the horizontal direction.

9. A large-pitch dual-beam system according to claim 8, characterized in that, At least one of the first reflective surface (11) and the second reflective surface (12) has a smooth surface structure; Alternatively, at least one of the first reflective surface (11) and the second reflective surface (12) may have a textured or patterned structure; Alternatively, at least one of the first reflecting surface (11) and the second reflecting surface (12) may have an alternating stepped structure.

10. A vehicle lamp structure, characterized in that, Includes a large-pitch dual-beam system as described in any one of claims 1-9.

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