Side-mounted vehicle lighting system

Abstract

The application provides a side-lying automobile lighting system, comprising a mounting plate, a light source, a reflecting device, a thick-walled part and a shielding structure; the light source is arranged on the mounting plate, and the reflecting device is arranged opposite to the light source; the shielding structure is arranged between the thick-walled part and the light source, and is used for shielding light directly emitted from the light source to the thick-walled part; the light emitted from the light source reaches the thick-walled part after being reflected by the reflecting device, and the light is emitted from the light-emitting surface of the thick-walled part. The shielding structure with a T-shaped structure is arranged, and the problem of bright spots of the side-lying optical system is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, specifically to a side-mounted automotive lighting system, and more particularly to a side-mounted automotive lighting system that eliminates bright spots using a T-shaped device. Background Technology

[0002] Due to the customer's definition of function and the limitations of actual styling space, automotive lighting suppliers usually need to balance many requirements. Customers need to achieve the working condition of reusing rear position lights and brake lights, and at the same time require uniform illumination in both front and side directions. However, traditional optical systems are difficult to meet the illumination requirements in both directions and are also limited by space.

[0003] In the existing technology, the combined optical system of side-mounted reflector bowl and thick-walled component can meet the requirements of the narrow space of the whole lamp, while also achieving the optical function and providing uniform lighting effect in both the front and side directions. However, the side-mounted optical system of reflector bowl and thick-walled component usually has insufficient space to place the device to shield the LED, resulting in visible bright spots. It inevitably produces visible LEDs, as well as primary and secondary derivative light spots caused by the LEDs. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the purpose of this invention is to provide a side-mounted automotive lighting system.

[0005] A side-mounted automotive lighting system according to the present invention includes: a mounting plate, a light source, a reflector, a thick-walled component, and a shielding structure;

[0006] The light source is disposed on the mounting plate, and the reflecting device is positioned directly opposite the light source; the shielding structure is disposed between the thick-walled member and the light source, and the shielding structure is used to block the light emitted directly from the light source onto the thick-walled member;

[0007] The light emitted from the light source is reflected by the reflecting device and reaches the thick-walled member, from which the light is emitted from the light-emitting surface of the thick-walled member.

[0008] Preferably, the reflecting device includes a reflecting bowl and a sidewall.

[0009] The plane containing the boundary line between the reflector bowl and the side wall and the center point of the light source is defined as the first boundary surface;

[0010] The lower edge of the shielding structure is located within the first boundary surface.

[0011] Preferably, the shielding structure includes a horizontal shielding structure and a vertical shielding structure, wherein the horizontal shielding structure and the vertical shielding structure are connected and configured.

[0012] Preferably, the shielding structure is a T-shaped structure or an L-shaped structure.

[0013] Preferably, the shielding structure is a T-shaped structure;

[0014] The lower edge of the longitudinal blocking structure of the T-shaped structure is located within the limiting surface;

[0015] The plane parallel to the mounting plate where the center point of the light source is located is defined as the second boundary surface. The end of the transverse shielding structure of the T-shaped structure extends to the second boundary surface or is located between the second boundary surface and the mounting plate.

[0016] Preferably, there is an assembly gap between the transverse shielding structure of the T-shaped structure and the surface of the mounting plate.

[0017] Preferably, the assembly gap is 0.5 mm.

[0018] Preferably, the thick-walled component is provided with a light-incident surface, an outer light-emitting surface, and a front light-emitting surface.

[0019] Light enters the thick-walled component from its light-incident surface, and exits from both the outer light-exiting surface and the front light-exiting surface of the thick-walled component.

[0020] Preferably, the mounting plate is a PCB board.

[0021] Preferably, the mounting plate is mounted laterally on the reflective device, the thick-walled member is mounted on the reflective device, and the shielding structure is mounted on the reflective device.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This invention solves the problem of bright spots caused by LEDs by adding a T-shaped shielding structure to the side-mounted system, thereby achieving a clean and transparent lighting and static effect;

[0024] 2. This invention can effectively solve the bright spot problem of side-mounted optical systems through this T-shaped shielding structure. The T-shaped structure can not only shield the primary bright spot directly generated by the LED, but also shield the secondary bright spot caused by the LED, thereby achieving a clean and transparent lighting effect without bright spots. Attached Figure Description

[0025] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a front view of the side-mounted automotive lighting system of the present invention;

[0027] Figure 2 for Figure 1 Cross-sectional view along line AA;

[0028] Figure 3 This is a top view of the side-mounted automotive lighting system of the present invention;

[0029] Figure 4 for Figure 3 Cross-sectional view along line BB;

[0030] Figure 5 This is a side view of the side-mounted automotive lighting system of the present invention;

[0031] Figure 6 The optical path diagram for an unobstructed structure;

[0032] Figure 7 This is a light path diagram of the side-mounted automotive lighting system of the present invention;

[0033] Figure 8 This is a schematic diagram showing the location and orientation of certain points in an automotive lighting system. Figure 1 ;

[0034] Figure 9 This is a schematic diagram showing the location and orientation of certain points in an automotive lighting system. Figure 2 ;

[0035] Figure 10 for Figure 9 A magnified view of a portion of the image;

[0036] Figure 11 This is a partial optical path diagram of the automotive lighting system of the present invention.

[0037] The diagram shows:

[0038] Mounting plate 1 Longitudinal shielding structure 7

[0039] Light source 2 Lateral occlusion structure 8

[0040] Reflecting device 3, lower surface of thick-walled component 9

[0041] Reflector bowl 301 Thick-walled part 10

[0042] Side wall 302 shielding structure 11

[0043] Thick-walled parts, light-receiving surface 4, assembly clearance 12

[0044] The outer surface of the thick-walled part is 5, and the first edge is 13.

[0045] Thick-walled part, positive light-emitting surface 6, second edge 14 Detailed Implementation

[0046] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0047] Example 1:

[0048] like Figures 1-11 As shown, this embodiment provides a side-mounted automotive lighting system, including: a mounting plate 1, a light source 2, a reflector 3, a thick-walled component 10, and a shielding structure 11. The light source 2 is mounted on the mounting plate 1, the reflector 3 is positioned directly opposite the light source 2, and the shielding structure 11 is positioned between the thick-walled component 10 and the light source 2. The shielding structure 11 is used to block light emitted directly from the light source 2 to the thick-walled component 10. The light emitted from the light source 2 is reflected by the reflector 3 and reaches the thick-walled component 10, where it exits from the light-emitting surface. The mounting plate 1 is a PCB board.

[0049] Mounting plate 1 is mounted laterally on reflector 3, thick-walled component 10 is mounted on reflector 3, and shielding structure 11 is mounted on reflector 3.

[0050] The thick-walled component 10 is provided with a light-incident surface 4, an outer light-exiting surface 5, and a front light-exiting surface 6. Light enters the thick-walled component 10 from the light-incident surface 4, and the light entering the thick-walled component 10 is emitted from the outer light-exiting surface 5 and the front light-exiting surface 6.

[0051] The reflecting device 3 includes a reflecting bowl 301 and a sidewall 302. The plane where the boundary line between the reflecting bowl 301 and the sidewall 302 and the center point of the LED light source 2 are located is defined as the first boundary plane. The lower edge of the blocking structure 11 is located within the first boundary plane. The reflecting bowl 301 is a parabolic reflecting bowl, which is the effective part of the reflecting device and can collimate the light.

[0052] like Figure 8 As shown, the effective surface of the reflector 3 (i.e., the reflector bowl 301) is below point P1. Connecting the center of the LED light source 2 and point P1, a straight line S1 is obtained. At least one edge of the blocking structure 11 coincides with the straight line S1, and the other edge of the blocking structure 11 coincides with or is placed above the straight line S1. The two edges of the blocking structure 11 are respectively Figure 10 The first edge 13 and the second edge 14 in the middle.

[0053] The shielding structure 11 includes a horizontal shielding structure 8 and a vertical shielding structure 7. The horizontal shielding structure 8 and the vertical shielding structure 7 are connected and arranged. The shielding structure 11 is a T-shaped structure or an L-shaped structure.

[0054] In this embodiment, the shielding structure 11 is a T-shaped structure. The lower edge of the longitudinal shielding structure 7 of the T-shaped structure is located within the limiting surface. The plane parallel to the mounting plate 1 where the center point of the LED light source 2 is located is defined as the second boundary surface. The end of the transverse shielding structure 8 of the T-shaped structure extends to the second boundary surface or is located between the second boundary surface and the mounting plate 1.

[0055] like Figure 9 and Figure 10 As shown, straight line S1 defines the lower limit of the length of the longitudinal blocking structure 7 of the T-shaped structure. The length of the transverse blocking structure 8 of the T-shaped structure is greater than or equal to the dashed line A. There is an assembly gap 12 between the transverse blocking structure 8 of the T-shaped structure and the surface of the mounting plate 1, and the assembly gap 12 is 0.5mm. The dashed line A represents the maximum upward light direction of the LED light source, which is 180 degrees.

[0056] The shielding structure in this embodiment includes a horizontal shielding structure 8 and a vertical shielding structure 7. The purpose of the horizontal shielding structure 8 is to prevent the light emitted by the LED light source with an emission angle between the line S1 and 180° from exhibiting a primary bright spot after passing through the thick-walled component, as well as a secondary bright spot caused by reflection from the PCB board. The purpose of the vertical shielding structure 7 is to prevent the light emitted by the LED light source with an emission angle between the line S1 and 180° from exhibiting a primary bright spot after passing through the thick-walled component.

[0057] Example 2:

[0058] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0059] This embodiment provides a side-mounted optical system, including a PCB board, an LED light source, a reflector, and a thick-walled component. The light source is mounted on the PCB board, and the reflector faces the light source. Light emitted from the light source is reflected by the reflector and reaches the thick-walled component. The thick-walled component has two light-emitting directions, and the light ultimately exits from two light-emitting surfaces of the thick-walled component. Figure 2 and Figure 4 As shown, the outer light-emitting surface 5 and the front light-emitting surface 6 can be lit simultaneously.

[0060] The side-mounted optical system of this embodiment also includes a shielding structure placed between the thick-walled component and the light source, which can shield the bright spots formed by light that does not directly hit the thick-walled component through the reflection device.

[0061] like Figure 8As shown, the area below point P1 is the effective surface of the reflector. Connecting the center of the LED light source and point P1, we obtain line S1. The area below line S1 is the effective light-emitting part of the LED light source, and the area above line S1 is the light-emitting part where the LED light source will form a bright spot. At least one edge of the shielding structure should coincide with line S1. To ensure maximum luminous efficiency, the other edge can coincide with line S1 or be placed above line S1. There is an assembly gap from the lateral direction of the shielding structure to the PCB board surface. The assembly gap is 0.5mm.

[0062] exist Figure 8 In this system, the effective surface of the reflecting device is below point P1. In the entire side-mounted optical system, point P1 will appear as a continuous straight line P1' or curve P1'". Therefore, the line connecting the straight line P1' or curve P1' and the center point of the light source will form a plane S1' or a curved surface S1'. Consequently, the edges of the blocking structure can be either straight or curved, depending on the surface formed by the line connecting the straight line P1' or curve P1' and the center point of the light source. As long as one edge coincides with the plane S1' or curved surface S1', and the other edge coincides with or is above the line S1', the above requirements can be met. It should be noted that... Figure 8 A cross-sectional view of a specific location within the entire side-mounted optical system, showing a straight line P1' or curve P1”, and a plane S1' or surface S1”. Figure 8 This is observed when viewed from the left or below, therefore, in Figure 8 It is not shown in the diagram.

[0063] The shielding structure includes lateral shielding and longitudinal shielding. The purpose of lateral shielding is to prevent primary bright spots caused by light from the LED light source with emission angles between S1 and 180° from passing through the thick-walled component, as well as secondary bright spots caused by reflection from the PCB board. The purpose of longitudinal shielding is to prevent primary bright spots caused by light from the LED light source with emission angles between S1 and 180° from passing through the thick-walled component. The shielding structure can be T-shaped or L-shaped; this embodiment does not limit its shape.

[0064] Example 3:

[0065] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0066] This embodiment provides a side-mounted automotive lighting device that eliminates bright spots using a T-shaped device, comprising a PCB board, an LED light source, a reflector 3, a T-shaped structure, and a thick-walled component 10. The LED light source is placed on the PCB board, which is laterally mounted to the reflector. The thick-walled component is mounted to the reflector, and the T-shaped structure is mounted to the reflector.

[0067] like Figure 4 As shown, the side-mounted automotive lighting device provided in this embodiment includes a PCB board, an LED light source, a reflector 3, a thick-walled component light-incident surface 4, a thick-walled component outer light-emitting surface 5, a thick-walled component front light-emitting surface 6, a T-shaped longitudinal blocking structure 7, and a T-shaped transverse blocking structure 8. The thick-walled component outer light-emitting surface 5 and the thick-walled component front light-emitting surface 6 are the surfaces that need to emit light in the entire optical system.

[0068] like Figure 6 As shown, this is an optical system without a T-shaped structure. Rays L1, L2, and L3 represent three typical rays emitted from the LED light source. Ray L1 is emitted from the LED, passes through the reflector 3, enters the thick-walled component through the light-incident surface 4, and finally exits from the forward-facing light-emitting surface 6 of the thick-walled component.

[0069] Light beam L2, emitted from the LED, passes through the reflector 3, enters the thick-walled component via the thick-walled light-incident surface 4, and finally exits from the outer light-exiting surface 5 of the thick-walled component. Both light beams L1 and L2 first pass through the reflector 3, then enter the thick-walled component, and finally exit from the outer and front light-exiting surfaces of the thick-walled component. This portion of light is the light that the system needs to retain because after passing through the reflector 3, the light undergoes a certain degree of collimation, thus entering the thick-walled component at a relatively perpendicular angle. The light-incident surface 4 of the thick-walled component features a patterned and textured design, which can diffuse the collimated light at a small angle, allowing the light to exit effectively and uniformly from the front and outer sides of the thick-walled component.

[0070] Light beam L3, emitted from the LED, enters directly into the light-receiving surface 4 of the thick-walled component. After refraction within the thick-walled component, it exits from the light-exiting surface 5 on the outside. Typically, the emission angle of an LED light source is defined as 120 degrees, but in reality, light is emitted within a 180-degree hemispherical space. Therefore, another portion of the light beam L4, emitted from the LED at a large angle, enters directly into the lower surface 9 of the thick-walled component. After refraction within the thick-walled component, it exits from the light-exiting surface 5 on the outside. Light beams L3 and L4 are emitted directly from the LED; this portion of light bypasses the reflector 3 and enters directly into the light-receiving surface 4 of the thick-walled component. The reflector 3 has a collimating reflective surface and a textured surface. This device collimates and diffuses the light, making the light energy more uniform and directional. Because light beams L3 and L4 bypass the reflector 3, very obvious bright spots are visible from the outside of the thick-walled component. Furthermore, when not lit, since there is no effective obstruction, the shape of the LED can be directly viewed from the light-emitting surface 5 on the outside of the thick-walled component, causing the thick-walled component to feel like an object and not transparent.

[0071] To effectively remove stray light such as light rays L3 and L4, a T-shaped structure was added. This structure can effectively block the light generated by the LED from directly entering the light-incident surface 4 of the thick-walled component, thereby blocking the primary and secondary light spots generated by the LED.

[0072] like Figure 7 As shown, after being blocked by the T-shaped structure, light rays L3 and L4, which would produce optical bright spots, are blocked. The remaining light rays L1 and L2 are all collimated by the reflecting device 3 before entering the interior of the thick-walled component. In the non-lit state, the LED cannot be directly observed from the light-emitting surface 5 on the outside of the thick-walled component.

[0073] The horizontal and vertical lengths of the T-structure need to be calculated based on the actual optical system, such as... Figure 8 As shown, point P1 is the highest point of the effective part of the reflector 3, and point P2 is the center point of the LED light source. Connecting point P1 and the center point P2 of the LED light source yields line S1, which defines the lower limit of the length of the longitudinal blocking structure 7 of the T-shaped structure. Light rays emitted in the direction of D1 will first reach the reflector 3. After being shaped by the reflector 3, the light enters the thick-walled component and exits from the front light-emitting surface 6 and the outer light-emitting surface 5 of the thick-walled component.

[0074] Under the combined action of the longitudinal blocking structure 7 and the transverse blocking structure 8 of the T-shaped structure, the light rays emanating from the LED light source in the upward direction D2 are blocked. As described above, if the light from the LED light source directly enters the light-incident surface 4 of the thick-walled component, it will cause severe bright spots. Because the T-shaped structure blocks the direct light from the LED, it eliminates any primary bright spots and stray light caused by direct LED light.

[0075] The length of the horizontal 8 of the T-shaped structure is determined by the position of the LED light source. Since the LED emits light in a 180-degree sphere on the surface, the length of the horizontal blocking structure 8 of the T-shaped structure only needs to exceed the distance of the LED surface in the horizontal direction.

[0076] like Figure 9 As shown, starting from the center point P2 of the LED light source, draw a dashed line A parallel to the PCB board. The dashed line A represents the maximum upward light direction of the LED light source within 180 degrees. When the length of the horizontal blocking structure 8 of the T-shaped structure is greater than or equal to the dashed line A, combined with the vertical blocking structure 7 of the T-shaped structure, this T-shaped structure blocks all the first-level bright spots generated by the LEDs.

[0077] Regardless of color, PCB boards all have a transparent, high-gloss coating on their surface, which reflects light. For example... Figure 10As shown, when the length of the transverse blocking structure 8 of the T-shaped structure is exactly aligned with the dashed line A, due to the very close distance between the PCB board and the T-shaped structure, there will be multiple reflections of the LED light between them. Light L5 originates from the LED surface, is reflected by the longitudinal blocking structure 7 of the T-shaped structure, reaches the PCB surface, undergoes further reflection by the PCB board, and then enters the interior of the thick-walled component through the lower surface 9. After total internal reflection inside the thick-walled component, it finally exits from the light-emitting surface 5 on the outer side of the thick-walled component. Similarly, a bright spot produced by this light can be observed from the light-emitting surface 5 on the outer side of the thick-walled component; this is called the secondary derived bright spot of the LED light source.

[0078] To eliminate secondary bright spots, the length of the T-shaped lateral blocking structure 8 is not merely beyond the dashed line A. Considering both primary and secondary bright spots generated by the LED light source, a longer T-shaped lateral blocking structure 8 is preferable. However, considering practical assembly requirements, it's impractical to extend it all the way to the PCB board. Therefore, in this embodiment, the assembly gap 12 between the T-shaped lateral blocking structure and the PCB board is set to 0.5mm. Figure 11 As shown, light L5 did not enter the interior of the thick-walled component due to the obstruction of the transverse blocking structure 8 of the T-shaped structure, thereby eliminating the secondary bright spots generated by the LED light source 2.

[0079] This embodiment provides a side-mounted automotive lighting device that eliminates bright spots using a T-shaped device. This eliminates primary and secondary bright spots generated by the LED light source, thereby achieving a clean and clear lighting and static effect.

[0080] This invention effectively solves the bright spot problem of side-mounted optical systems by setting a T-shaped shielding structure.

[0081] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0082] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A side-mounted automotive lighting system, characterized in that, include: Mounting plate (1), light source (2), reflector (3), thick-walled component (10) and shielding structure (11); The light source (2) is disposed on the mounting plate (1), and the reflecting device (3) is disposed directly opposite the light source (2); the shielding structure (11) is disposed between the thick-walled member (10) and the light source (2), and the shielding structure (11) is used to shield the light emitted directly from the light source (2) to the thick-walled member (10); The light emitted from the light source (2) is reflected by the reflecting device (3) and reaches the thick-walled member (10), and the light is emitted from the light-emitting surface of the thick-walled member (10); The reflective device (3) includes a reflective bowl (301) and a sidewall (302). The plane where the boundary line between the reflector bowl (301) and the side wall (302) and the center point of the light source (2) are located is defined as the first boundary plane; The lower edge of the shielding structure (11) is located within the first boundary surface; The shielding structure (11) includes a horizontal shielding structure (8) and a vertical shielding structure (7), wherein the horizontal shielding structure (8) and the vertical shielding structure (7) are connected and disposed together; The shielding structure (11) is a T-shaped structure; The lower edge of the longitudinal shielding structure (7) of the T-shaped structure is located within the first boundary surface; The plane parallel to the mounting plate (1) where the center point of the light source (2) is located is defined as the second boundary surface. The end of the transverse shielding structure (8) of the T-shaped structure extends to the second boundary surface or is located between the second boundary surface and the mounting plate (1). There is an assembly gap (12) between the transverse shielding structure (8) of the T-shaped structure and the surface of the mounting plate (1). Point P1 is the highest point of the effective part of the reflecting device (3); Point P2 is the center point of the LED light source. Connecting point P1 and the center point P2 of the LED light source, we get a straight line S1. The straight line S1 defines the lower limit of the length of the longitudinal blocking structure (7) of the T-shaped structure. The emitted light, if it is light directed towards direction D1, will first be emitted to the reflector (3). After being shaped by the reflector (3), the light enters the thick-walled component and is emitted from the front light-emitting surface (6) of the thick-walled component and the outer light-emitting surface (5) of the thick-walled component. Under the combined action of the longitudinal blocking structure (7) and the transverse blocking structure (8) of the T-shaped structure, the light rays originating from the LED light source and the light rays upward in the direction D2 will be blocked to eliminate any primary bright spots and stray light caused by direct LED light rays. LEDs emit light in a 180-degree sphere on their surface, and the length of the T-shaped lateral shielding structure (8) exceeds the distance from the LED surface in the lateral direction; Starting from the center point P2 of the LED light source, draw a dashed line A parallel to the PCB board. The dashed line A represents the maximum upward light direction of the LED light source by 180 degrees. The length of the horizontal blocking structure (8) of the T-shaped structure is greater than or equal to the dashed line A. Combined with the vertical blocking structure (7) of the T-shaped structure, the T-shaped structure blocks all the first-level bright spots generated by the LED. Due to the obstruction of the transverse shielding structure (8) of the T-shaped structure, the light L5 did not enter the interior of the thick-walled component, thereby eliminating the secondary bright spot generated by the LED light source (2).

2. The side-mounted automotive lighting system according to claim 1, characterized in that, The assembly gap (12) is 0.5 mm.

3. The side-mounted automotive lighting system according to claim 1, characterized in that, The thick-walled component (10) is provided with a light-incident surface (4), an outer light-outcrystal surface (5), and a front light-outcrystal surface (6). Light enters the thick-walled member (10) from the light-incident surface (4) of the thick-walled member, and the light entering the thick-walled member (10) is emitted from the light-out surface (5) on the outside of the thick-walled member and the light-out surface (6) on the front of the thick-walled member.

4. The side-mounted automotive lighting system according to claim 1, characterized in that, The mounting plate (1) is a PCB board.

5. The side-mounted automotive lighting system according to claim 1, characterized in that, The mounting plate (1) is mounted laterally on the reflective device (3), the thick-walled member (10) is mounted on the reflective device (3), and the shielding structure (11) is mounted on the reflective device (3).

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