Light-emitting sign of automobile
By using CSP to package LED chips and optical components in automotive luminous signs, multiple luminous areas are designed, and problems of large size and complex structure in the prior art are solved, compact structure and diversified lighting effects are achieved, and the Brightness and cost-effectiveness.
Patent Information
- Application Number
- CN202421151597.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing automotive luminous signs use SMD or COB light sources, and the light source size is large, the light color is not consistent enough, and the structural space requirements are large, so complex dynamic lighting patterns cannot be achieved.
The LED chip is packaged with CSP, combined with lenses and light guide plates, and multiple light emitting areas are designed. Through preset LED chips with different arrangements of shapes and density, the uniformity of the light sheet is eliminated to achieve a compact structure and a diverse lighting effect.
It reduces the structural space requirements of luminous signs, improves the ability to realize brightness and dynamic lighting patterns, while reducing costs and structural complexity.
Smart Images
Figure CN222346927U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobiles, and more specifically to an automobile luminous sign. Background Art
[0002] In the prior art, car luminous signs generally use SMD or COB light sources, which are large in size, have inconsistent light colors, and low light efficiency. In order to achieve uniform light emission, light-transmitting plates and light-homogenizing sheets are generally provided, which require a large amount of structural space and cannot achieve complex dynamic lighting patterns.
[0003] Therefore, how to design a car luminous sign to reduce the structural space requirement of the car luminous sign and make the structure of the car luminous sign more compact has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0004] In view of this, an object of the utility model is to provide a car luminous sign to reduce the structural space requirement of the car luminous sign, so as to make the structure of the car luminous sign more compact.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A car luminous sign, comprising:
[0007] A PCB board, wherein a plurality of luminous bodies are arranged on the PCB board in a preset shape to form a plurality of luminous areas, and the luminous bodies are CSP packaged LED chips;
[0008] The optical component includes a lens and a light guide plate, and the optical component is arranged above the light emitting body.
[0009] Optionally, in the above-mentioned automobile luminous sign, the luminous area includes a first luminous area, a second luminous area, a third luminous area and a fourth luminous area;
[0010] The lens includes a first inner lens, a second inner lens and a third inner lens, the first inner lens is arranged above the first light-emitting area, the second inner lens is arranged above the second light-emitting area, the light guide plate is arranged above the third light-emitting area, and the third inner lens is arranged above the fourth light-emitting area.
[0011] Optionally, in the above-mentioned automobile luminous sign, the first luminous area is a long strip arrangement area, which is used to display a car logo pattern.
[0012] Optionally, in the above-mentioned automobile luminous sign, the second luminous area is arranged around the first luminous area, and the second luminous area presents a pattern effect through the second inner lens.
[0013] Optionally, in the above-mentioned automobile luminous sign, the third luminous area is arranged around the second luminous area.
[0014] Optionally, in the above-mentioned automobile luminous sign, the fourth luminous area is arranged between the second luminous area and the third luminous area, and the fourth luminous area is used to display the automobile logo.
[0015] Optionally, in the above-mentioned automobile luminous sign, the sizes of the CSP packaged LED chips in each luminous area are the same or different;
[0016] The arrangement density of the CSP packaged LED chips in each light emitting area is the same or different.
[0017] Optionally, in the above-mentioned automobile luminous sign, a light-isolating structure is provided between each luminous area.
[0018] Optionally, in the above-mentioned automobile luminous sign, the first inner lens, the second inner lens and the light guide plate are all made of PC material, and the third inner lens is made of transparent PC material or PMMA material.
[0019] Optionally, in the above-mentioned automobile luminous sign, the PCB board is a glass fiber board or an aluminum substrate.
[0020] The automobile luminous sign provided by the utility model adopts CSP packaged LED chips. Compared with the SMD light source or COB light source adopted in the prior art, the volume of the light-emitting body can be reduced, thereby reducing the structural space requirement of the automobile luminous sign and improving the brightness at the same time; the CSP packaged LED chips are arranged in a preset shape, which can save the number of CSP packaged LED chips used and do not need to cover the PCB board, thereby reducing the cost; the setting of different light-emitting areas can achieve diversified lighting effects; the automobile luminous sign disclosed in the embodiment of the utility model cancels the setting of the light-homogenizing sheet in the prior art, which can make the structure of the automobile luminous sign simpler and more compact. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 This is a schematic diagram of the structure of a PCB board disclosed in an embodiment of the utility model;
[0023] Figure 2 A schematic diagram of the structure of an optical component disclosed in an embodiment of the utility model;
[0024] Figure 3 It is a parts assembly diagram of the automobile luminous sign disclosed in the embodiment of the utility model;
[0025] Figure 4 It is the overall assembly diagram of the automobile luminous sign disclosed in the embodiment of the utility model;
[0026] Figure 5 Schematic diagram of the light isolation structure disclosed in the embodiment of the utility model Figure 1 ;
[0027] Figure 6 Schematic diagram of the light isolation structure disclosed in the embodiment of the utility model Figure 2 ;
[0028] Figure 7 This is a schematic diagram of the size and arrangement density of the CSP packaged LED chips disclosed in the embodiment of the utility model.
[0029] Wherein, 100 is a PCB board, 101 is an LED chip, 110 is a first light-emitting area, 120 is a second light-emitting area, 130 is a third light-emitting area, and 140 is a fourth light-emitting area;
[0030] 200 is an optical component, 210 is a first inner lens, 220 is a second inner lens, 230 is a third inner lens, and 240 is a light guide plate;
[0031] 300 is a light-isolating structure. DETAILED DESCRIPTION
[0032] The core of the utility model is to disclose a car luminous sign to reduce the structural space requirement of the car luminous sign, so that the structure of the car luminous sign is more compact.
[0033] In addition to the problems mentioned in the background art, existing automobile luminous signs also have the problem of being unable to realize complex dynamic lighting patterns.
[0034] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.
[0035] like Figure 2-Figure 3 As shown, the embodiment of the utility model discloses a car luminous sign, including a PCB board 100 and an optical component 200.
[0036] Among them, a plurality of luminous bodies 101 are arranged on the PCB board 100, and each luminous body 101 is arranged on the PCB board 100 according to a preset shape or a preset pattern to form a plurality of luminous areas. Specifically, the luminous body 101 is a CSP packaged LED chip. It should be noted that the preset pattern here can be letters, numbers, text, or logos, and it can also be a preset shape without specific limitation. The optical component 200 includes a lens and a light guide plate 240. The optical component 200 is arranged above the luminous body 101 and covers the corresponding luminous area.
[0037] The automobile luminous sign disclosed in the embodiment of the utility model adopts CSP packaged LED chips, which can reduce the volume of the light-emitting body compared with the SMD (Surface Mounted Devices) or COB light source (Chip On Board Light) used in the prior art, thereby reducing the structural space requirement of the automobile luminous sign and improving the brightness; the CSP packaged LED chips are arranged in a preset shape, which can save the number of CSP packaged LED chips used and does not need to cover the PCB board, thereby reducing the cost; the setting of different light-emitting areas can achieve a variety of lighting effects; the automobile luminous sign disclosed in the embodiment of the utility model cancels the setting of the light-homogenizing sheet in the prior art, which can make the structure of the automobile luminous sign simpler and more compact.
[0038] like Figure 1 As shown, the luminous area of the automobile luminous sign disclosed in the embodiment of the utility model includes a first luminous area 110, a second luminous area 120, a third luminous area 130 and a fourth luminous area 140. Figure 2-Figure 3 As shown, the lens includes a first inner lens 210, a second inner lens 220 and a third inner lens 230. The first inner lens 210 is arranged above the first light-emitting area 110, the second inner lens 220 is arranged above the second light-emitting area 120, the light guide plate 240 is arranged above the third light-emitting area 130, and the third inner lens 230 is arranged above the fourth light-emitting area 140. Figure 4 Shown is a schematic diagram of the structure of the automobile luminous sign after assembly.
[0039] In the automobile luminous sign disclosed in the embodiment of the utility model, the first luminous area 110 is a long strip arrangement area, located in the middle area of the automobile luminous sign, and is used to display the car logo pattern of the automobile. The second luminous area 120 is arranged around the first luminous area 110, and the second luminous area 120 presents a pattern effect through the second inner lens 220. Specifically, the back of the second inner lens 220 is engraved with a pattern, thereby presenting a pattern animation effect. The specific style of the pattern is not limited and can be specifically set according to needs. Figure 2The pattern shown in the figure is a triangular pattern. Fine dynamic lighting is achieved by spraying paint on the back of the second inner lens 220 and then laser engraving the triangular pattern to enhance the three-dimensional effect. The third light-emitting area 130 is arranged around the second light-emitting area 120. Specifically, the CSP packaged LED chips of the third light-emitting area 130 are arranged in a single row, corresponding to the shape of the frame. The fourth light-emitting area 140 is arranged between the second light-emitting area 120 and the third light-emitting area 130. The preset pattern of the fourth light-emitting area 140 is letters, numbers or words, which are used to display the logo of the car. It should be noted that the first inner lens 210 and the second inner lens 220 can also be provided with patterns according to requirements.
[0040] In the embodiment of the utility model, the size of the CSP packaged LED chips in each light-emitting area is the same or different, and the arrangement density of the CSP packaged LED chips in each light-emitting area is the same or different. In order to achieve different lighting effects in different light-emitting areas, such as Figure 7 As shown, in a specific embodiment, the size of the CSP packaged LED chips in the first light emitting area 110 and the fourth light emitting area 140 is 1.9 mm×1.9 mm×0.27 mm, and the arrangement density is less than or equal to 1-2 chips / cm 2 The distance between two adjacent CSP packaged LED chips is 6.35 mm, the size of the second light emitting area 120 and the third light emitting area 130 is 0.65 mm × 1.13 mm × 0.27 mm, and the arrangement density is less than or equal to 9-12 pieces / cm 2 , the distance between two adjacent CSP packaged LED chips shown in the figure is 3.8mm, and the size of the CSP packaged LED chips decreases from the middle area of the car luminous sign to the two side areas. It can be understood by those skilled in the art that the specific size and arrangement density of the CSP packaged LED chips in different luminous areas here can be specifically set according to actual needs and are not limited to the values in the above embodiment. The car luminous sign disclosed in the embodiment of the utility model can achieve a dynamic lighting effect of multiple luminous areas under a limited luminous area.
[0041] like Figure 5-Figure 6As shown, in order to realize the independent functions of each light-emitting area and the absence of light crosstalk between each other, the automobile light-emitting sign disclosed in the embodiment of the utility model is provided with a light-isolating structure 300 between each light-emitting area, and the gap between the light-isolating structure 300 and the PCB board is less than 0.4 mm. Specifically, the light-isolating structure 300 between the first light-emitting area 110 and the second light-emitting area 120 is achieved by spraying black paint on the side of the first inner lens 210, the light-isolating structure 300 between the second light-emitting area 120 and the third light-emitting area 130 is achieved by spraying black paint on the side of the second inner lens 220, the light-isolating structure 300 between the second light-emitting area 120 and the fourth light-emitting area 140 is achieved by spraying black paint on the side of the third inner lens 230, and the light-isolating structure 300 between the third light-emitting area 130 and the fourth light-emitting area 140 is achieved by spraying black paint on the side of the third inner lens 230, thereby avoiding the phenomenon of light crosstalk between each light-emitting area, and is easy to achieve.
[0042] In the automobile luminous sign disclosed in the embodiment of the utility model, the first inner lens 210, the second inner lens 220 and the light guide plate 240 are all made of PC material (polycarbonate), and the third inner lens 230 is made of transparent PC material or PMMA material (polymethyl methacrylate). PC material can achieve uniform light emission.
[0043] In the automobile luminous sign disclosed in the embodiment of the utility model, the PCB board 100 is a glass fiber board or an aluminum substrate.
[0044] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.
Claims
1. A car luminous sign, characterized in that: include: A PCB board (100), wherein a plurality of luminous bodies (101) are arranged on the PCB board (100), and each of the luminous bodies (101) is arranged on the PCB board (100) in a preset shape to form a plurality of luminous areas, and the luminous bodies (101) are CSP packaged LED chips; An optical component (200), the optical component (200) comprising a lens and a light guide plate (240), the optical component (200) being arranged above the light emitting body (101).
2. The automobile luminous sign as claimed in claim 1, characterized in that: The light-emitting area comprises a first light-emitting area (110), a second light-emitting area (120), a third light-emitting area (130) and a fourth light-emitting area (140); The lens comprises a first inner lens (210), a second inner lens (220) and a third inner lens (230); the first inner lens (210) is arranged above the first light-emitting area (110); the second inner lens (220) is arranged above the second light-emitting area (120); the light guide plate (240) is arranged above the third light-emitting area (130); and the third inner lens (230) is arranged above the fourth light-emitting area (140).
3. The automobile luminous sign as claimed in claim 2, characterized in that: The first light-emitting area (110) is a long strip-shaped arrangement area, and is used to display a vehicle logo pattern.
4. The automobile luminous sign as claimed in claim 3, characterized in that: The second light-emitting area (120) is arranged around the first light-emitting area (110), and the second light-emitting area (120) presents a pattern effect through the second inner lens (220).
5. The automobile luminous sign as claimed in claim 4, characterized in that: The third light-emitting area (130) is arranged around the second light-emitting area (120).
6. The automobile luminous sign as claimed in claim 5, characterized in that: The fourth light-emitting area (140) is arranged between the second light-emitting area (120) and the third light-emitting area (130), and the fourth light-emitting area (140) is used to display a car logo.
7. The automobile luminous sign as claimed in claim 6, characterized in that: The sizes of the CSP packaged LED chips in each of the light-emitting areas are the same or different; The arrangement density of the CSP packaged LED chips in each of the light-emitting areas is the same or different.
8. The automobile luminous sign as claimed in claim 2, characterized in that: A light isolation structure (300) is provided between each of the light-emitting areas.
9. The automobile luminous sign as claimed in claim 4, characterized in that: The first inner lens (210), the second inner lens (220) and the light guide plate (240) are all made of PC material, and the third inner lens (230) is made of transparent PC material or PMMA material.
10. The automobile luminous sign according to any one of claims 1 to 9, characterized in that: The PCB board (100) is a glass fiber board or an aluminum substrate.