Large-curved-surface small-space light-emitting logo and vehicle lamp

Abstract

The utility model discloses a large-curved-surface small-space light-emitting logo and a vehicle lamp, and belongs to the technical field of vehicle lamps. Comprising an inner lampshade, a decorative ring, a reflector and an LED module. A protruding part is arranged on one side of the inner lampshade, the decoration ring is arranged on the protruding part in a sleeving mode, and the side, close to the protruding part, of the inner lampshade is welded to the decoration ring through ultrasonic waves. The reflecting mirror is a concave mirror, a reflecting bowl is arranged on the concave face of the reflecting mirror, and a notch of the reflecting mirror faces the protruding portion of the inner lampshade. The LED module is arranged above the reflecting mirror and is riveted and fixed with the reflecting mirror to form a light source sub-assembly, the reflecting mirror is arranged on one side, far away from the decorative ring, of the inner lampshade, and the lower end of the reflecting mirror is connected with the decorative ring through a screw, so that the light source sub-assembly and the decorative ring form a luminous logo; according to the large-curved-surface small-space light-emitting logo, the requirement for light weight is met through riveting connection, compact layout is achieved through the reflecting mirror, the occupied space of the logo is optimized, and meanwhile light uniformity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a large curved surface small space luminous emblem and vehicle light. Background Technology

[0002] Illuminated emblems have gained increasing popularity among automakers in recent years, and as part of their positioning function, they are gradually becoming standard equipment on new models. Character-type emblems are generally located near the side of the vehicle body, requiring a high degree of uniformity in illumination, as well as a large curvature in their shape and a small footprint.

[0003] In existing technologies, such as the patent with authorization number CN218348579U, a small universal optical device for realizing luminous characters and its vehicle light are disclosed. The key technical points of the solution are: including a trim ring, a light guide, a bracket, and an LED module; the LED module and the light guide are fixed on the bracket to form a light source assembly; the light source assembly is fixedly connected to the trim ring to form an optical device assembly; wherein, the double-layer light guide uses transparent material, and the surface of the front light guide uses hot stamping technology to realize the luminous logo; although this device can meet the display of personalized characters or brand logos in the appearance design of automotive parts and occupies little space; however, it requires a relatively flat surface, and the hot stamping technology limits the angle of the luminous surface to no less than 150°, making it difficult to adapt to large-arc luminous logos; and due to space limitations, the distance between the rear light guide and the front light guide is relatively close, and the reflective teeth on the rear light guide are visible when viewed at close range. The logo light is transparent when not lit, and under illumination, it does not match the static appearance of the current mainstream scattering materials of position lights, and it is also not compatible when lit.

[0004] In addition, to meet the needs of large-arc luminous logos, a solution of direct LED illumination combined with a concentrator and aluminum plating on the outer lampshade can also be adopted. However, this type of solution requires more space, and the uniformity of light distribution depends on controlling the coating thickness. Sometimes, structural limitations make it difficult to ensure the consistency of the coating, which can easily lead to defects such as poor uniformity of light distribution. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to solve the problem of the difficulty in combining small space occupation and uniform light emission when the curvature of the light-emitting surface is large, this utility model provides a large curved surface small space light-emitting logo and car light, which achieves a large curved surface design while having a better uniform light effect.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a large curved surface small space luminous logo, including an inner lampshade, a decorative ring, a reflector and an LED module; one side of the inner lampshade is provided with a protrusion, the decorative ring is sleeved on the protrusion, and the side of the inner lampshade near the protrusion is ultrasonically welded to the decorative ring. Thus, the use of ultrasonic welding can save the space occupied at the connection, thereby ensuring that the window size of the decorative ring is small, optimizing the space occupied by the decorative ring, achieving the effect of small size, and replacing the method of multiple bolt connections to achieve the requirement of lightweight.

[0007] The LED module is positioned above the reflector, and the LED module and the reflector are riveted together to form a light source sub-assembly. The reflector is partially surrounded on the side of the inner lampshade away from the decorative ring, and the side of the reflector closer to the inner lampshade is connected to the decorative ring, so that the light source sub-assembly and the decorative ring form a luminous logo.

[0008] The reflector is a concave mirror, and a reflective bowl is provided on the concave surface of the reflector. The concave opening of the reflector faces the protrusion of the inner lampshade, and the reflector and the decorative ring form a semi-enclosed shape with respect to the inner lampshade. Thus, the first step of uniform light effect in a small space is achieved through the reflective bowl.

[0009] Furthermore, a welding rib is provided on the side of the inner lampshade near the protrusion. The welding rib is the connection part formed by ultrasonic welding or laser welding between the inner lampshade and the decorative ring. Thus, the fixing effect is enhanced while ensuring the size of the decorative ring window.

[0010] Furthermore, existing technologies use light emanating from around the logo to illuminate it. However, in low-light environments, the logo is not conspicuous and fails to serve as a prompt. To address this issue, a black paint layer is applied to the outer surface of the inner lampshade away from the reflector. The portion of this black paint layer located at the protruding part is laser-engraved to create a hollow shape. This hollow shape forms the shape of the luminous logo. Light reflected from the reflector enters the inner lampshade and passes through the hollowed-out letters, thus illuminating the logo and making it more visible in low-light environments. The use of black paint followed by laser engraving reduces the limitations on the shape angle of the luminous logo; the shape angle β only needs to be 120°, and the logo shape can be arbitrarily set. The logo line width W can reach 0.3mm, creating a sharp corner effect without rounded corners. This avoids the effect of rounded corners causing the incident energy at the branch points to become unguided or dispersed.

[0011] Furthermore, the reflector bowl is concave, and the concave opening is concentric and oriented with the concave opening of the reflector mirror; a textured aluminum coating layer is provided on the concave surface of the reflector bowl; thereby, the textured aluminum coating layer enhances the light uniformity performance of the reflector bowl.

[0012] Furthermore, in order to achieve better light uniformity, the inner lampshade is made of a scattering material; thus, the light collimated by the reflector is scattered by the scattering material, which can improve the uniformity of light distribution and angular range, and better meet the requirements of large curvature of the light-emitting surface.

[0013] Furthermore, the LED module includes a light-emitting LED, a connector, and a circuit board; the circuit board is located on the side of the inner lampshade away from the decorative ring and is connected to the reflector; the light-emitting LED and the connector are respectively mounted on the circuit board using a surface mount process, and the light-emitting LED is located on the side of the circuit board closer to the reflector and between the reflector bowl and the inner lampshade; thus, the light-emitting LED provides a light source on one side of the reflector bowl, and the reflector bowl reflects the light and completes the lighting action through the hollow shape; the compact layout optimizes the need for depth space, further achieving the effect of a small space.

[0014] Furthermore, the connector is located on the same side as the LED and on the side of the reflector away from the LED. The connector is used to fix the illuminated logo to the vehicle body mounting location.

[0015] Furthermore, the connector is located on the side of the circuit board away from the light-emitting LED, between the reflector and the inner lamp cover, and can be arranged at any position on this side according to space requirements. Thus, when the depth space is limited, the size of the circuit board can be further changed, and the position and layout of the connector can also be adjusted according to requirements, thereby further optimizing the depth space, reducing the depth space requirement, and adapting to the need for small installation space.

[0016] Furthermore, multiple reflective bowls are provided and connected sequentially along the length of the decorative ring; multiple LEDs are provided, and each LED corresponds to one of the reflective bowls; thus, each reflective bowl has an independent light source to meet the requirements of the light emission effect.

[0017] Furthermore, the light-emitting LED is an LED light guide strip, the side of which is bonded to the circuit board, and one side is fixed by surface mount technology. Thus, through the conduction of the light guide strip, the reflection of the light guide teeth and the focusing of the light on the convex spherical surface, and the reflection of the reflector, the light is emitted from the opening of the decorative ring, thereby achieving the effect of multiple reflector bowls with one light source, eliminating the need to set a light source for each reflector bowl, thus saving costs.

[0018] Furthermore, the end face of the circuit board is provided with a riveting hole, and the upper end of the reflector is provided with a riveting post that mates with the riveting hole. The riveting post mates with the riveting hole to position the circuit board.

[0019] A type of vehicle light, including the aforementioned large curved surface with a small luminous logo.

[0020] The large curved surface and small space luminous logo of this utility model has the following beneficial effects:

[0021] 1. By using a spray painting and laser engraving solution on the outer surface of the inner lampshade of the scattering material, it is possible to design any logo shape on a large curved surface and ensure high precision of the outline, making the design more diverse and free.

[0022] 2. By adopting an optical solution of LED + reflector + diffuser material inner lampshade, when the LED lights up (the logo lights up), the light is reflected by the reflector to the inner lampshade painted on the outer surface. The hollow part of the inner lampshade emits light while the rest is blocked, ensuring uniform light in a small space and improving the logo's recognizability.

[0023] 3. By riveting LED modules to reflectors and riveting or welding decorative rings to inner lamp covers, miniaturized and lightweight luminous logos are formed;

[0024] 4. By designing the connectors, reflectors, and circuit boards separately, the position and layout of the connectors can be flexibly adjusted, thus addressing situations where the depth space of the luminous logo installation location is limited. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a front view schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0027] Figure 2 yes Figure 1 Axial view of the overall structure.

[0028] Figure 3 yes Figure 2 Assembly diagram of the overall structure.

[0029] Figure 4 yes Figure 1 A schematic diagram of the structure at section A.

[0030] Figure 5 yes Figure 2 A top view of the inner lampshade structure.

[0031] Figure 6 yes Figure 1 An enlarged schematic diagram of the structure at point G.

[0032] Figure 7 This is a schematic diagram of the overall structure in Embodiment 3.

[0033] In the diagram: 1. Inner lampshade; 11. Black paint layer; 12. Hollowed-out shape; 13. Welding rib; 14. Protrusion; 2. Decorative ring; 21. Positioning component; 3. Reflector; 31. Textured aluminum plating layer; 32. Riveting post; 4. LED module; 41. Light-emitting LED; 42. Connector; 43. Circuit board. Detailed Implementation

[0034] 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.

[0035] like Figures 1-6 The image shown is an embodiment of this utility model: a large curved surface, small space luminous emblem for use in a vehicle headlight, comprising an inner lampshade 1, a decorative ring 2, a reflector 3, and an LED module 4; see reference. Figure 2 , Figure 3 and Figure 5 The inner lampshade 1 has a protrusion 14 on one side, and the decorative ring 2 is fitted on the protrusion 14. The side of the inner lampshade 1 near the protrusion 14 is ultrasonically welded to the decorative ring 2. The LED module 4 is set above the reflector 3 and is riveted to the reflector 3 to form a light source sub-assembly. The reflector 3 is set on the side of the inner lampshade 1 away from the decorative ring 2, and the lower end of the reflector 3 is connected to the decorative ring 2 by screws, so that the light source sub-assembly and the decorative ring 2 form a luminous logo. The reflector 3 is a concave mirror, and a reflective bowl is set on the concave surface of the reflector 3. The concave opening of the reflector 3 faces the protrusion 14 of the inner lampshade 1. The reflector 3 and the decorative ring 2 form a semi-enclosed shape for the inner lampshade 1.

[0036] Where: Reference Figures 1-5 The inner lampshade 1 is made of a scattering material. A black paint layer 11 is provided on the outer surface of the inner lampshade 1 away from the reflector 3. The portion of the black paint layer 11 located at the protrusion 14 is removed by laser engraving to form a hollow shape 12 (e.g., for...). Figure 1 (The hollowed-out letters in the middle)

[0037] The inner side of the decorative ring 2 is provided with a positioning component 21, and the side of the inner lamp cover 1 is provided with a positioning groove. The positioning groove and the LED module 4 are located on the same side of the inner lamp cover 1. The positioning component 21 cooperates with the positioning groove to ensure the relative position of the decorative ring 2 and the inner lamp cover 1 during assembly.

[0038] The reflector bowl is concave, and the concave opening is concentric and in the same direction as the concave opening of the reflector 3; a textured aluminum-plated layer 31 is provided on the concave surface of the reflector bowl;

[0039] The LED module 4 includes a light-emitting LED 41, a connector 42, and a circuit board 43. The circuit board 43 is located on the side of the inner lamp cover 1 away from the decorative ring 2. The end face of the circuit board 43 is provided with a riveting hole. The upper end of the reflector 3 is provided with a riveting post 32 that mates with the riveting hole. The riveting post 32 mates with the riveting hole to position the circuit board 43. The light-emitting LED 41 is fixed to the side of the circuit board 43 near the reflector 3 by surface mount technology. The light-emitting LED 41 is located on one side of the reflector bowl.

[0040] Multiple reflector bowls are provided and connected sequentially along the length of the decorative ring 2; multiple LEDs 41 are LED lights, and each LED 41 corresponds to one of the reflector bowls.

[0041] The connector 42 is mounted on the circuit board 43 by surface mount technology and is located on the same side as the light-emitting LED 41. The connector 42 is located on the side of the reflector 3 away from the light-emitting LED 41. The connector 42 is used to fix the light-emitting logo to the vehicle body mounting location.

[0042] Working principle:

[0043] The LED 41 provides the light source. A reflector bowl with a textured aluminum coating receives the light and then uniformly reflects it into the inner lampshade 1, which is made of scattering material. Because the outer surface of the inner lampshade 1 is covered with a black paint layer 11, light cannot pass through it. The protrusion 14 of the inner lampshade 1 is laser-engraved to form a hollow shape 12, allowing light to pass through. Thus, the light emanating from the hollow shape 12 is clearly visible from the outside, thereby illuminating the logo.

[0044] Among them, the inner lampshade 1 and the decorative ring 2, and the reflector 3 and the LED module 4 are connected by riveting, which can save the space occupied at the connection point, allowing the window of the decorative ring 2 to be smaller, optimizing the overall space occupied by the illuminated logo, and achieving a small size effect; at the same time, it replaces the multiple bolt connection method used in the existing technology, achieving the requirement of lightweight.

[0045] By using a reflective bowl with a textured aluminum coating and an inner lampshade 1 with a scattering material, the uniformity of light is improved in a small space.

[0046] Laser engraving is used to create a hollow shape 12. The shape angle of the luminous logo is not restricted; the shape angle β only needs to meet 120° (e.g., Figure 5 As shown); it meets the requirement of designing arbitrary logo shapes on large curved surfaces; it ensures high-precision outlines for illuminated logos (such as...). Figure 6As shown, the logo's line width W can reach 0.3mm, forming a sharp corner effect without rounded corners, avoiding the adverse effects of rounded corners on the performance and efficiency of integrated optical components and the overall performance of the optical network. Specifically, at the branching position, a large cross-section is presented relative to the incident rounded corner of the light signal. This makes the incident energy at the branching point unguided or dispersed, thus resulting in loss in the device, allowing for more diverse and flexible design.

[0047] Reference Figure 4 This is the second embodiment of the present invention. The difference from the first embodiment is that a welding rib 13 is provided on the side of the inner lampshade 1 near the protrusion 14. The welding rib 13 is the connection part formed by ultrasonic welding or laser welding between the inner lampshade 1 and the decorative ring 2. Thus, the fixing effect is strengthened while ensuring the window size of the decorative ring 2.

[0048] Reference Figure 7 This is the third embodiment of the present invention. The difference from the first embodiment is that the width of the circuit board 43 is adjusted according to the depth of the installation location, and the connector 42 is set on the circuit board 43 by surface mount technology and is located on the side away from the light-emitting LED 41. The connector 42 is located between the reflector 3 and the inner lamp cover 1. The connector 42 can be arranged at any position on this side according to the space requirements. Thus, it can adapt to the situation where the installation space of the vehicle body is limited.

[0049] Furthermore, in Embodiment 4 of this utility model, the difference from Embodiment 1 is that the light-emitting LED is an LED light guide strip, the side of the light guide strip is bonded to the circuit board 43, and one side is connected and fixed by surface mount technology; thus, through the conduction of the light guide strip, the reflection of the light guide teeth and the light focusing of the convex spherical surface, and the reflection of the reflector 3, the light is emitted from the opening of the decorative ring 2, thereby achieving the effect of multiple reflector bowls with one light source, without the need to set a light source for each reflector bowl, thus saving costs.

[0050] Based on the above-described preferred embodiments of this utility model, and through the foregoing 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 according to the scope of the claims.

Claims

1. A large curved surface luminous logo in a small space, characterized in that: It includes an inner lampshade (1), a decorative ring (2), a reflector (3), and an LED module (4); one side of the inner lampshade (1) is provided with a protrusion (14), the decorative ring (2) is fitted on the protrusion (14), and the side of the inner lampshade (1) near the protrusion (14) is fixedly connected to the decorative ring (2); The LED module (4) is positioned above the reflector (3), and the LED module (4) and the reflector (3) are riveted together to form a light source sub-assembly. The reflector (3) is positioned on the side of the inner lampshade (1) away from the decorative ring (2), and the side of the reflector (3) close to the inner lampshade (1) is fixedly connected to the decorative ring (2), so that the light source sub-assembly and the decorative ring (2) form a luminous logo.

2. The large curved surface small space luminous logo as described in claim 1, characterized in that: The reflector (3) is a concave mirror, and a reflector bowl is provided on the concave surface of the reflector (3). The concave opening of the reflector (3) faces the protrusion (14) of the inner lampshade (1). The reflector (3) and the decorative ring (2) form a semi-enclosed shape around the inner lampshade (1). The reflector bowl is concave, and the concave opening of the reflector bowl is concentric and in the same direction as the concave opening of the reflector (3). There are multiple reflector bowls, and they are connected sequentially along the length of the decorative ring (2). The concave surface of the reflector bowl is provided with a textured aluminum plating layer (31).

3. The large curved surface small space luminous logo as described in claim 2, characterized in that: The inner lampshade (1) is provided with a welding rib (13) on the side near the protrusion (14), and the welding rib (13) is welded to the decorative ring (2) by ultrasonic welding or laser welding.

4. The large curved surface small space luminous logo as described in claim 3, characterized in that: The outer surface of the inner lampshade (1) away from the reflector (3) is provided with a black paint layer (11), and the black paint layer (11) located at the protrusion (14) is removed by laser engraving to form a hollow shape (12).

5. The large curved surface small space luminous logo as described in claim 4, characterized in that: The inner lamp cover (1) is made of a scattering material.

6. The large curved surface small space luminous logo as described in claim 5, characterized in that: The LED module (4) includes a light-emitting LED (41), a connector (42), and a circuit board (43); the circuit board (43) is located on the side of the inner lampshade (1) away from the decorative ring (2) and is riveted to the reflector (3); the light-emitting LED (41) and the connector (42) are mounted on the circuit board (43), and the light-emitting LED (41) is located on the side of the circuit board (43) close to the reflector (3) and corresponds one-to-one with the reflector bowl.

7. The large curved surface small space luminous logo as described in claim 6, characterized in that: The connector (42) is located on the same side as the light-emitting LED (41), and the connector (42) is located on the side of the reflector (3) away from the light-emitting LED (41). The connector (42) is used to fix the light-emitting logo to the vehicle body mounting location.

8. The large curved surface small space luminous logo as described in claim 6, characterized in that: The connector (42) is located at any position on the side of the circuit board (43) away from the light-emitting LED (41), and the connector (42) is located between the reflector (3) and the inner lamp cover (1).

9. A vehicle light, characterized in that: Including a luminous logo with a large curved surface and small space as described in any one of claims 1-8.

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