Vehicle tail lamp and vehicle

Abstract

The utility model relates to the technical field of vehicle lamps, and provides a vehicle tail lamp which comprises a shell. The light-transmitting shell is mounted in the shell, and the light-transmitting shell comprises a light-transmitting part; the light-emitting assembly is installed on the shell and emits light towards the light-transmitting shell; the backlight lens is installed on the shell and arranged on a light-emitting path of the light-emitting assembly, and the backlight lens is used for transmitting and / or refracting light of the light-emitting assembly; light of the light-emitting assembly is transmitted and / or refracted by the backlight lens and then irradiates the light-transmitting part. The light of the light-emitting component is transmitted and / or refracted by the backlight lens and then irradiated to the light-transmitting part, so that effective scattering of the light is ensured, uniform distribution of the light is realized, the thickness of the light-transmitting shell and the height of the light-emitting surface are reduced on the premise of ensuring the uniformity of the lighting effect, the appearance of the tail lamp is lighter and thinner, and the service life of the tail lamp is prolonged. And the requirements of streamline design of modern vehicles are met, the space layout is optimized, the material use and assembly difficulty is reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle lamp technical field, concretely relates to a vehicle tail light and vehicle. BACKGROUND

[0002] Vehicle tail light as the important component of traffic safety, mainly used for in the night or low visibility condition to the rear vehicle brake, steering or position signal transmission, traditional vehicle tail light usually adopts many small power LED as light source, combines red light -transmitting cover and realizes the light emitting effect.

[0003] However, in order to reach the uniform light effect, this design scheme needs the thick lamp shell thickness (usually more than 30mm), and the light emitting surface to the light exit surface of light-transmitting cover needs to keep higher height, resulting in the appearance design and space optimization of vehicle tail light are limited, not favorable to the streamline design of vehicle appearance and the optimization of space layout, in addition, the thick lamp structure also increases the material cost and assembly difficulty. Therefore, how to reduce the lamp thickness under the premise of guaranteeing the uniformity of light effect becomes the technical problem to be solved urgently. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a kind of vehicle tail light and vehicle using the tail light that realize uniform light effect and lower cost.

[0005] To solve the above problems, the utility model provides the following technical scheme:

[0006] A kind of vehicle tail light, it includes:

[0007] Shell;

[0008] Light-transmitting shell, is installed in the shell, the light-transmitting shell includes light-transmitting part;

[0009] Light emitting component, is installed in the shell and emits light towards the light-transmitting shell;

[0010] Backlight lens, is installed in the shell and is located on the light emitting path of the light emitting component, and the backlight lens is used to transmit and / or refract the light of the light emitting component;

[0011] Wherein, the light of the light emitting component is irradiated to the light-transmitting part after transmitting and / or refracting by the backlight lens.

[0012] In an embodiment, the light emitting component includes circuit board and LED lamp pearl installed on the circuit board, the LED lamp pearl is installed on the circuit board towards the light-transmitting shell side, and the backlight lens is installed on the side of the circuit board provided with the LED lamp pearl and covers the LED lamp pearl.

[0013] In one embodiment, the housing includes a bottom shell, the bottom shell having a reflective layer on at least one side facing the backlight lens, and the circuit board being attached to the reflective layer of the bottom shell facing the light-transmitting shell.

[0014] In one embodiment, the backlight lens is recessed inward on the side facing the LED to form a light inlet groove, and the LED is accommodated in the light inlet groove when the backlight lens is mounted on the circuit board.

[0015] In one embodiment, the number of LED beads is set to 1 or 2.

[0016] In one embodiment, the backlight lens has a bonding portion on the periphery of the light entrance slot, and a first light-transmitting layer and a second light-transmitting layer are provided on the side opposite to the bonding portion. The second light-transmitting layer is connected to the periphery of the bonding portion, and the first light-transmitting layer is disposed in the center of the second light-transmitting layer. The bonding portion is bonded to the circuit board.

[0017] In one embodiment, the first light-transmitting layer is configured as a plane or an inwardly recessed arc surface, the second light-transmitting layer is configured as an arc surface, and the side of the bonding portion that is bonded to the circuit board is configured as a plane.

[0018] In one embodiment, the light-transmitting portion is configured as at least one, and each of the light-transmitting portions is exposed outside the housing.

[0019] In one embodiment, the housing includes a top shell, and the light-transmitting shell further includes a non-light-transmitting portion. The top shell is provided with a light-transmitting opening for the light-transmitting portion to be exposed outward. The light-transmitting portion protrudes outward through the light-transmitting opening, and the non-light-transmitting portion is located on the inner side of the top shell and overlaps with the inner wall of the top shell.

[0020] This embodiment also provides a vehicle, characterized in that it includes a vehicle taillight as described in any of the above embodiments.

[0021] The beneficial effects of this utility model are as follows: by placing the backlight lens on the light-emitting path of the light-emitting component, the light from the light-emitting component is transmitted and / or refracted through the backlight lens and then irradiates the light-transmitting part, ensuring effective light scattering and achieving uniform light distribution. Thus, while ensuring uniform light efficiency, the thickness of the light-transmitting shell and the height of the light-emitting surface are reduced, making the taillights thinner and lighter, meeting the needs of modern vehicle streamlined design. Furthermore, the spatial layout is optimized, reducing material usage and assembly difficulty, and lowering production costs. Attached Figure Description

[0022] Figure 1 This is a perspective view of one embodiment of a vehicle taillight according to the present invention;

[0023] Figure 2 This is an exploded view of one embodiment of a vehicle taillight according to the present invention;

[0024] Figure 3 This is a cross-sectional view of one embodiment of a vehicle taillight according to the present invention;

[0025] Figure 4 for Figure 3 A schematic diagram of one embodiment of the combination of the light-emitting component and the backlight lens;

[0026] Figure 5 This is a schematic diagram of the structure of one embodiment of a vehicle according to the present invention.

[0027] Figure label:

[0028] 10. Taillight; 20. Vehicle; 110. Housing; 210. Light-transmitting shell; 310. Backlight lens; 410. Light-emitting component; 421. LED bulb; 422. Circuit board; 310a. Light inlet groove; 321. Adhesive part; 322. First light-transmitting layer; 323. Second light-transmitting layer; 221. Light-transmitting part; 121. Top shell; 122. Bottom shell; 222. Non-light-transmitting part; 121a. Light-transmitting opening. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Please refer to Figures 1-4As shown, this embodiment provides a vehicle taillight 10, which includes: a housing 110 for mounting the taillight 10 structural components and electronic components; a light-transmitting shell 210 installed inside the housing 110 for transmitting light; a light-emitting component 410 installed inside the housing 110 for emitting light; and a backlight lens 310 installed inside the housing 110 and disposed on the light-emitting path of the light-emitting component 410. The light-transmitting shell 210 includes a light-transmitting portion 221, allowing light passing through the light-transmitting shell 210 to be scattered outwards. The light-emitting component 410 emits light towards the light-transmitting portion 221. Furthermore, the backlight lens 310 is used to transmit and / or refract the light from the light-emitting component 410. The light from the light-emitting component 410, after being transmitted and / or refracted by the backlight lens 310, illuminates the light-transmitting portion 221.

[0032] The vehicle taillight provided in this embodiment places the backlight lens on the light-emitting path of the light-emitting component, so that the light from the light-emitting component is transmitted and / or refracted by the backlight lens and then shines on the light-transmitting part, ensuring effective light scattering and achieving uniform light distribution. Thus, while ensuring uniform light efficiency, the thickness of the light-transmitting shell and the height of the light-emitting surface are reduced, making the taillight thinner and lighter, meeting the needs of modern vehicle streamlined design. It also optimizes the spatial layout, reduces material usage and assembly difficulty, and lowers production costs.

[0033] Understandably, in order to achieve uniform light mixing, the traditional starry sky lighting scheme requires a minimum height of 15-20mm between the light-emitting surface of the light-emitting component and the light-emitting surface of the taillight. However, by adopting the LED lamp bead + TV backlight lens scheme, the height can be greatly reduced compared to the traditional starry sky lighting scheme by adjusting the light-emitting surface of the lens. The overall lamp thickness can be designed to be thinner and lighter, reducing the thickness by more than 40% compared to the traditional design, effectively optimizing the vehicle installation space.

[0034] Optionally, the translucent shell 210 is made of red transparent material, and the inner side is designed with a light-mixing pattern to play a secondary light-mixing role, so that the light spot after lighting is more uniform and improves the visual effect.

[0035] Preferably, the light-emitting component 410 includes a circuit board 422 and LED beads 421 mounted on the circuit board 422. The LED beads 421 are mounted on the side of the circuit board 422 facing the light-transmitting shell 210 and are located in the center of the circuit board 422. The backlight lens 310 is mounted on the side of the circuit board 422 where the LED beads 421 are located and covers the LED beads 421 to achieve precise control and optimization of light. It can be understood that the backlight lens 310, through its specific geometric structure and optical characteristics, can effectively transmit and refract the light emitted by the LED beads 421, thereby ensuring uniform distribution and efficient utilization of light. The circuit board 422 is attached to the inner side of the housing 110 away from the light-transmitting shell 210 to ensure structural stability and compactness. Understandably, by placing the LED beads 421 on the side of the circuit board 422 facing the light-transmitting shell 210, the light from the LED beads 421 can directly illuminate the light-transmitting shell 210. At the same time, placing the LED beads 421 in the center of the circuit board 422 can not only effectively protect the LED beads 421 from external impacts or vibrations, but also provide a more symmetrical and stable foundation for the installation of the backlight lens 310. In addition, this layout design facilitates the precise alignment between the backlight lens 310 and the circuit board 422, ensuring that the light can be evenly distributed after transmission and refraction through the backlight lens 310, further improving the uniformity and consistency of light efficiency.

[0036] The housing 110 includes a bottom housing 122. The bottom housing 122 has a reflective layer on at least one side facing the backlight lens 310. The circuit board 422 is attached to the reflective layer of the bottom housing 122 facing the light-transmitting housing 210. Optionally, in this embodiment, all parts of the bottom housing are made of reflective layers, and the reflective layers are made of white high-reflective material, which can reflect the residual light reflected by the backlight lens 310 to the back of the light-transmitting part 221 back for reuse, thereby improving the overall lighting efficiency of the lamp.

[0037] Optionally, in this embodiment, the number of LED beads is set to one, and LED beads are selected and placed in the center of the lamp. Therefore, the PCB size can be designed to be very small. Compared with the traditional starry sky lamp layout, the PCB is significantly reduced, which reduces material costs and surface mount costs.

[0038] Optionally, the power range of the LED beads in this embodiment can be set between 0.2 and 0.5W. Since the main purpose of electric bicycle taillights is to improve visibility and ensure safety when riding at night or in low light conditions, extremely high brightness is not required. Therefore, common designs tend to use LED beads within this power range. If higher brightness and visibility at a greater distance are desired, LED beads with a power range of 0.5 to 1W may be selected.

[0039] Preferably, the backlight lens 310 is recessed inward on the side facing the LED bead 421 to form a light inlet groove 310a. The LED bead 421 is accommodated in the light inlet groove 310a when the backlight lens 310 is mounted on the circuit board 422. It can be understood that the design of the light inlet groove 310a matches the size and shape of the LED bead 421 to ensure that the LED bead 421 can be accurately embedded therein, thereby achieving optical correspondence between the LED bead 421 and the backlight lens 310. The structural design of the light inlet groove 310a can also play a role in positioning and fixing the LED bead 421, preventing the LED bead 421 from shifting or loosening during installation or use. By accommodating the LED bead 421 in the light inlet groove 310a, the backlight lens 310 can more efficiently control the light, further optimizing the uniformity of the light and the light output effect.

[0040] Preferably, the wall of the light-receiving groove 310a is set as an arc surface, and its curvature is designed and optimized through optical simulation to ensure that the light emitted by the LED beads 421 can be incident at the optimal angle and distributed evenly. The arc surface groove wall design not only reduces the reflection loss of light on the groove wall surface, but also effectively guides the light through its specific geometry, allowing it to enter the main area of ​​the backlight lens 310 more efficiently. In addition, the structure of the arc surface groove wall can avoid unnecessary scattering or focusing of light at the edge of the groove wall, thereby further improving the uniformity of light and the light output effect.

[0041] Preferably, the backlight lens 310 has a bonding portion 321 on the periphery of the light entrance groove 310a, and a first light-transmitting layer 322 and a second light-transmitting layer 323 on the side opposite to the bonding portion 321. The second light-transmitting layer 323 is connected to the periphery of the bonding portion 321, and the first light-transmitting layer 322 is located in the center of the second light-transmitting layer 323. The bonding portion 321 is bonded to the circuit board 422. It is understood that the design of the bonding portion 321 is to achieve a tight fixation between the backlight lens 310 and the circuit board 422, so as to eliminate gaps in the optical path, reduce light loss, and prevent light leakage from the connection. It is understood that a single LED lamp bead... The light emission angle of 421 is 120 degrees. This light emission angle is too small to achieve a uniform light surface effect. In order to achieve a uniform light emission effect, the first light-transmitting layer 322 and the second light-transmitting layer 323 have different optical properties. The first light-transmitting layer 322 is located in the central area and is mainly used to transmit and control the direct light emitted by the LED bead 421. The second light-transmitting layer 323 is arranged around the first light-transmitting layer 322 and is used to refract and diffuse the edge light. The second light-transmitting layer 323 is connected to the periphery of the bonding part 321 to form a continuous optical transition area to ensure a smooth transition of light during transmission and refraction.

[0042] Preferably, the first light-transmitting layer 322 is configured as a flat surface or an inwardly concave arc surface, the second light-transmitting layer 323 is configured as an arc surface, and the side of the bonding portion 321 that is bonded to the circuit board 422 is configured as a flat surface; optionally, in this embodiment, the first light-transmitting layer 322 is configured as an inwardly concave arc surface; it can be understood that the flat or arc surface design of the first light-transmitting layer 322 is based on optical performance requirements. The flat design can directly transmit the light emitted by the LED beads 421, ensuring the straight-line propagation and efficient utilization of the light; while the inwardly concave arc surface design can focus or diffuse the light to a certain extent to adapt to different light uniformity requirements. The curved structure of the second light-transmitting layer 323 is optically optimized to effectively refract and scatter edge light, thereby expanding the light distribution range and improving uniformity. By setting the TV backlight lens 310 and controlling the shape of the light-emitting surfaces of the first light-transmitting layer 322 and the second light-transmitting layer 323, the light emission angle reaches 170 degrees, allowing the central light to refract to both sides. This can efficiently utilize the light emitted by the LED beads 421, concentrate and evenly diffuse the light, resulting in high luminous efficiency. The side of the bonding part 321 that is bonded to the circuit board 422 adopts a flat design to ensure close contact between the backlight lens 310 and the circuit board 422, avoiding light leakage or unstable mechanical connection caused by uneven surfaces.

[0043] Preferably, the light-transmitting shell 210 includes at least one light-transmitting portion 221. Optionally, in this embodiment, the light-transmitting shell 210 includes three light-transmitting portions 221, and each light-transmitting portion 221 is exposed outside the shell 110. It is understood that the light-transmitting portions 221 can be designed as patterns of different shapes; such as... Figure 1 As shown, the light-transmitting part 221 in this embodiment is set as a "clover" structure. In another embodiment, the light-transmitting part 221 can also be set as a "heart" shape, a "triangle" structure, a "polygon" structure, a "ring" structure, a "circle" structure, and other types of structures. The structure can be set according to user needs. That is, in the structure of the vehicle taillight 10 in this embodiment, the light-transmitting part 221 can be designed into any desired shape according to user needs, and there is no limitation here.

[0044] Preferably, the housing 110 includes a top housing 121 that is fastened to the bottom housing 122. The light-transmitting housing 210 also includes a non-light-transmitting part 222. The top housing 121 is provided with a light-transmitting opening 121a for the light-transmitting part 221 to be exposed outward. The light-transmitting part 221 protrudes outward through the light-transmitting opening 121a to realize the outward output of light. The non-light-transmitting part 222 is located on the inner side of the top housing 121 and overlaps with the inner wall of the top housing 121 to ensure the light blocking effect of the non-light-transmitting area 222 and avoid light leakage.

[0045] like Figure 5As shown, this embodiment also provides a vehicle 20, which includes a vehicle taillight 10 as described in any of the above embodiments. When the vehicle taillight 10 is applied to the vehicle 20, it can improve the lighting effect of the rear of the vehicle 20, thereby enhancing the clarity and aesthetics of the rear of the vehicle 20. It is understood that in this embodiment, the vehicle taillight 10 is applied to an electric two-wheeled bicycle. However, in other embodiments, the taillight 10 can also be applied to electric vehicles, fuel vehicles, and other types of vehicles 20. Further details are not elaborated here.

[0046] In summary, this utility model provides a vehicle taillight and a vehicle. By placing a backlight lens on the light-emitting path of the light-emitting component, the light from the light-emitting component is transmitted and / or refracted through the backlight lens and then irradiates the light-transmitting part, ensuring effective light scattering and achieving uniform light distribution. Thus, while ensuring uniform light efficiency, the thickness of the light-transmitting shell and the height of the light-emitting surface are reduced, making the taillight thinner and lighter, meeting the needs of modern vehicle streamlined design. Furthermore, it optimizes the spatial layout, reduces material usage and assembly difficulty, and lowers production costs.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A vehicle taillight, characterized in that, include: case; A light-transmitting shell is installed inside the housing, and the light-transmitting shell includes a light-transmitting portion; A light-emitting component is installed in the housing and emits light toward the light-transmitting shell; A backlight lens is mounted on the housing and positioned on the light-emitting path of the light-emitting component. The backlight lens is used to transmit and / or refract the light from the light-emitting component. The light from the light-emitting component is transmitted and / or refracted by the backlight lens and then shines onto the light-transmitting part.

2. The vehicle taillight according to claim 1, characterized in that: The light-emitting component includes a circuit board and LED beads mounted on the circuit board. The LED beads are mounted on the side of the circuit board facing the light-transmitting shell. The backlight lens is mounted on the side of the circuit board where the LED beads are located and covers the LED beads.

3. The vehicle taillight according to claim 2, characterized in that: The housing includes a bottom shell, and the bottom shell has a reflective layer on at least one side facing the backlight lens. The circuit board is attached to the reflective layer of the bottom shell facing the light-transmitting shell.

4. The vehicle taillight according to claim 3, characterized in that: The backlight lens is recessed inward on the side facing the LED to form a light inlet groove, and the LED is accommodated in the light inlet groove when the backlight lens is mounted on the circuit board.

5. The vehicle taillight according to claim 4, characterized in that: The number of LED beads is set to 1 or 2.

6. The vehicle taillight according to claim 4 or 5, characterized in that: The backlight lens has a bonding portion on the periphery of the light entrance slot, and a first light-transmitting layer and a second light-transmitting layer are provided on the side opposite to the bonding portion. The second light-transmitting layer is connected to the periphery of the bonding portion, and the first light-transmitting layer is located in the center of the second light-transmitting layer. The bonding portion is bonded to the circuit board.

7. The vehicle taillight according to claim 6, characterized in that: The first light-transmitting layer is set as a plane or an inwardly concave arc surface, the second light-transmitting layer is set as an arc surface, and the side of the bonding part that is bonded to the circuit board is set as a plane.

8. The vehicle taillight according to claim 3, characterized in that: The light-transmitting part is configured to be at least one, and each of the light-transmitting parts is exposed outside the housing.

9. The vehicle taillight according to claim 8, characterized in that: The housing includes a top shell, and the light-transmitting shell also includes a non-light-transmitting part. The top shell is provided with a light-transmitting opening for the light-transmitting part to be exposed outward. The light-transmitting part protrudes outward through the light-transmitting opening. The non-light-transmitting part is located on the inner side of the top shell and overlaps with the inner wall of the top shell.

10. A vehicle, characterized in that: Includes the vehicle taillights as described in any one of claims 1 to 9.

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