Night vehicle tail lamp capable of being automatically turned on and turned off and implementation method
By integrating light sensors on the taillights of motorcycles and electric vehicles, the automatic opening and closing function is achieved, which solves the problem of insufficient vehicle visibility in night or low light conditions, improves driving safety, and through reasonable lamp layout and heat dissipation design, ensures that the lamps provide the best lighting effect and clear visual indication within their respective working ranges.
Patent Information
- Application Number
- CN202510288530.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-04-29
AI Technical Summary
Motorcycles and electric vehicles are insufficient visibility at night or under low light conditions, which increases the risk of traffic accidents. Traditional taillights need to be turned on manually and may not be operated in time in emergencies.
Design a night car taillight that automatically opens and closes. By integrating a light sensor into the upper reflector, it monitors the intensity of the surrounding ambient light in real time and automatically opens and closes the driving light according to the preset threshold to ensure that the vehicle maintains appropriate visibility under low light conditions.
It achieves that the vehicle can always maintain appropriate visibility under low light conditions regardless of day and night or weather conditions, thereby improving driving safety. Through reasonable lamp layout and heat dissipation design, it ensures that the lamps provide the best lighting effect and clear visual indication within their respective working ranges.
Smart Images

Figure CN119907167A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of vehicle taillights, and in particular to an automatically turned on and off nighttime vehicle taillight and an implementation method thereof. Background Art
[0002] As urban traffic becomes increasingly busy, motorcycles and electric vehicles are increasingly used as convenient means of transportation. However, at night or in low light conditions, the visibility of these vehicles is insufficient, increasing the risk of traffic accidents. Traditionally, drivers of motorcycles and electric vehicles need to manually turn on the taillights, which is not only easy to be overlooked, but may not be able to operate in time in an emergency. Therefore, designing a nighttime taillight that can automatically turn on and off according to ambient light conditions is crucial to improving road safety. Summary of the invention
[0003] The purpose of the present invention is to provide a nighttime taillight that automatically turns on and off and an implementation method. Through the light sensor integrated in the upper reflector, the system can monitor the ambient light intensity in real time and automatically turn on and off the running lights according to a preset threshold. This ensures that regardless of day or night or how weather conditions change, the vehicle can always maintain appropriate visibility under low-light conditions, thereby improving driving safety. The running lights, brake lights and reversing lights are designed with a reasonable layout, so that each functional light can provide the best lighting effect and clear visual indication within its respective working range, solving the problems raised in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nighttime taillight that automatically opens and closes, comprising a mounting base and a protective cover, wherein the mounting base and the protective cover are fixed by bolts, the lamp body is protected by the protective cover, the protective cover is provided with a plurality of light-transmitting areas, the illumination of the taillight assembly is not restricted, the mounting base is connected with a taillight assembly and a microcontroller, the taillight assembly is arranged between the mounting base and the protective cover, the microcontroller is arranged on the mounting base, connected to the taillight assembly, and controls the taillight assembly to automatically open and close.
[0005] Preferably, the taillight assembly includes a running light, a brake light and a reversing light, wherein the running light is in an elliptical ring structure, the brake light is arranged in the middle of the running light, and the reversing light is located below the running light and is arranged at an angle.
[0006] Preferably, an upper reflector and a lower reflector are respectively provided on the upper and lower sides of the mounting base plate, and the upper reflector and the lower reflector are arranged in an expansion-type tilted arrangement toward one side of the protective cover, and a reflective coating is provided on the inner walls of the upper reflector and the lower reflector to increase the brightness of the running lights. In addition, heat sinks are provided on the outer walls of the upper reflector and the lower reflector to dissipate heat for the running lights and the brake lights.
[0007] Preferably, the heat sink is an inverted trapezoidal structure, and the upper and lower sides of the protective cover are sealing plates that match the heat sink. The sealing plate is engaged with one side of the heat sink, and the protective cover and the mounting base plate are connected by an inclined surface. After the bolts are tightened, the sealing plate and the heat sink are pressed tightly to improve the tightness of the connection between the protective cover and the mounting base plate, and to improve the sealing effect. Mounting blocks are also provided at both ends of the protective cover, and the automatic opening and closing nighttime taillights are fixed as a whole by the mounting blocks.
[0008] Preferably, a light sensor electrically connected to the microcontroller is arranged in the middle position of the upper reflective plate, and a first light-transmitting plate is fixedly connected to the upper reflective plate corresponding to the light sensor. Because the upper reflective plate is arranged at an angle, the light sensor works away from the lighting direction of the taillights at night to detect the light intensity of the surrounding environment. The first light-transmitting plate is opposite to the lighting direction of the taillights at night, ensuring that the light sensor will not be affected by the lights inside the car or other non-ambient light sources.
[0009] Preferably, a fixed plate is arranged in the middle position of the lower reflective plate, a reversing light is mounted on the fixed plate, a second light-transmitting plate is arranged on the sealing plate near the reversing light, and the second light-transmitting plate is arranged tilted along with the sealing plate. Under the action of the lower reflective plate, the light of the reversing light is lowered and tilted downward, which is convenient for the rider to reverse and observe the road conditions.
[0010] Preferably, a boss is provided on one side of the mounting base plate close to the protective cover, and the boss is socketed with the running light to limit the position of the running light. At the same time, the surface of the boss is connected to the brake light to fix the position of the brake light. A support ring is provided on the inner wall of the protective cover, and the support ring abuts against the boss to increase the length of the boss. Together with the boss, the support ring plays a role of isolating the running light and the brake light. At the same time, the support ring supports the middle of the protective cover to prevent the supporting force in the middle position of the protective cover from being weak.
[0011] Preferably, the boss is installed with a microcontroller, and a sealing plug is engaged at the opening position of the boss. The boss is sealed by the sealing plug, so that the microcontroller can be protected from impact and water vapor. The microcontroller is connected to a light sensor, which monitors the light intensity of the surrounding environment in real time and transmits the monitored light intensity information to the microcontroller.
[0012] Preferably, the sealing plug includes a rubber shock-absorbing pad and a heat-conducting sheet. The rubber shock-absorbing pad is provided with a groove matching the heat-conducting sheet. The heat-conducting sheet is embedded in the rubber shock-absorbing pad. The heat-conducting sheet is engaged with one side of the microcontroller to fix the position of the microcontroller and absorb heat from the microcontroller at the same time. The rubber shock-absorbing pad is provided with heat dissipation holes. The heat-conducting sheet diffuses the heat through the heat dissipation holes to cool the microcontroller.
[0013] Another technical problem to be solved by the present invention is to provide a method for implementing the automatic start and stop of a nighttime vehicle taillight, comprising the following steps:
[0014] Step 1: When the car starts, the light sensor installed in the middle of the upper reflective plate starts to work. The light sensor monitors the light intensity of the surrounding environment in real time through the first light-transmitting plate and transmits the data to the microcontroller. The microcontroller receives the light intensity information from the light sensor. If the ambient light is lower than the preset threshold, the microcontroller triggers the driving lights to turn on. When the light returns to a value higher than the set threshold, the microcontroller turns off the driving lights after a delay to avoid frequent switching.
[0015] Step 2: The brake light is located in the middle of the driving light. When the driver steps on the brake pedal, the brake light will light up immediately, sending a deceleration signal to the vehicle behind. The upper and lower reflectors are coated with reflective coating to help enhance the brightness of the brake light.
[0016] Step 3: The reversing light is located below the driving light and is set at an angle. It is installed on the fixing plate and the light is enhanced by the reflective coating on the lower reflector. When the vehicle is shifted into reverse gear, the reversing light lights up to illuminate the area behind the vehicle. At the same time, the second light-transmitting plate on the sealing plate ensures that the light is tilted downward, making it easier for the rider to observe the road conditions.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] The present invention proposes an automatically activated and deactivated nighttime taillight and an implementation method. Through a light sensor integrated in an upper reflector, the system can monitor the ambient light intensity in real time and automatically activate and deactivate the driving lights according to a preset threshold value. This ensures that the vehicle can always maintain appropriate visibility under low-light conditions regardless of day or night or weather conditions, thereby improving driving safety. The driving lights, brake lights and reversing lights are designed with a reasonable layout so that each functional light can provide the best lighting effect and clear visual indication within its respective working range. Trapezoidal heat sinks are provided on the outer walls of the upper reflector and the lower reflector to effectively help the driving lights and brake lights dissipate heat and avoid performance degradation or damage due to overheating. In addition, a heat conducting sheet is also provided inside the microcontroller and heat is diffused through the heat dissipation holes on the rubber shock-absorbing pad to ensure stable operation of the system. The sealing plug not only protects the microcontroller from water and dust, but also provides a buffering effect to reduce the impact of external shocks on internal electronic components. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The overall structure diagram of the nighttime vehicle taillight that automatically turns on and off according to the present invention;
[0020] Figure 2 This is an exploded first-view diagram of the nighttime vehicle taillight that automatically turns on and off according to the present invention;
[0021] Figure 3 The second perspective view of the automatic nighttime taillight of the present invention;
[0022] Figure 4 A cross-sectional view of the automatically turned-on and turned-off nighttime vehicle taillight of the present invention;
[0023] Figure 5 It is a structural diagram of the sealing plug of the present invention;
[0024] Figure 6 It is a cross-sectional view of the installation base plate of the present invention.
[0025] In the figure: 1. Installation base plate; 11. Upper reflector; 111. Reflective coating; 112. First light-transmitting plate; 12. Lower reflector; 121. Fixing plate; 13. Heat sink; 14. Boss; 15. Sealing plug; 151. Rubber shock-absorbing pad; 1511. Heat dissipation hole; 152. Heat conductive sheet; 2. Protective cover; 21. Sealing plate; 211. Second light-transmitting plate; 22. Support ring; 23. Mounting block; 3. Taillight assembly; 31. Driving light; 32. Brake light; 33. Reversing light; 4. Microcontroller; 41. Light sensor. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0027] To solve the problem that existing motorcycles and electric vehicles have insufficient visibility at night or in low light conditions, which increases the risk of traffic accidents. Traditionally, drivers of motorcycles and electric vehicles need to manually turn on the taillights, which is not only easy to be overlooked, but may not be able to operate in time in an emergency. Figure 1-Figure 6 , this embodiment provides the following technical solutions:
[0028] A nighttime vehicle taillight that automatically opens and closes includes a mounting base plate 1 and a protective cover 2, wherein the mounting base plate 1 and the protective cover 2 are fixed by bolts, and a taillight assembly 3 and a microcontroller 4 are connected to the mounting base plate 1. Specifically, the taillight assembly 3 is arranged between the mounting base plate 1 and the protective cover 2, and the lamp body is protected by the protective cover 2. The protective cover 2 is provided with a plurality of light-transmitting areas, and the illumination of the taillight assembly 3 is not restricted. The microcontroller 4 is arranged on the mounting base plate 1, and is connected to the taillight assembly 3, and controls the taillight assembly 3 to automatically open and close.
[0029] The taillight assembly 3 includes a running light 31, a brake light 32 and a reversing light 33, wherein the running light 31 is in an elliptical ring structure, the brake light 32 is distributed in the middle of the running light 31, and the reversing light 33 is located below the running light 31 and is set at an angle.
[0030] An upper reflector 11 and a lower reflector 12 are respectively provided on the upper and lower sides of the mounting base plate 1. The upper reflector 11 and the lower reflector 12 are arranged in an expansion-type tilted arrangement toward one side of the protective cover 2. A reflective coating 111 is provided on the inner walls of the upper reflector 11 and the lower reflector 12 to increase the brightness of the running lights 31. In addition, a heat sink 13 is provided on the outer walls of the upper reflector 11 and the lower reflector 12 to dissipate heat for the running lights 31 and the brake lights 32. The heat sink 13 is an inverted trapezoidal structure. The upper and lower sides of the protective cover 2 are both sealed plates 21 that match the heat sink 13. The sealing plate 21 is engaged with one side of the heat sink 13, and the protective cover 2 and the mounting base plate 1 are connected through an inclined surface. After the bolts are tightened, the sealing plate 21 is pressed against the heat sink 13 to improve the tightness of the connection between the protective cover 2 and the mounting base plate 1 and to improve the sealing effect.
[0031] A light sensor 41 electrically connected to the microcontroller 4 is arranged in the middle position of the upper reflective plate 11. A first light-transmitting plate 112 is fixedly connected to the upper reflective plate 11 corresponding to the light sensor 41. Because the upper reflective plate 11 is arranged at an angle, the light sensor 41 works in the direction opposite to the illumination direction of the taillights at night to detect the light intensity of the surrounding environment. The first light-transmitting plate 112 is opposite to the illumination direction of the taillights at night, ensuring that the light sensor 41 will not be affected by the lights inside the car or other non-ambient light sources.
[0032] A fixing plate 121 is arranged in the middle of the lower reflector 12, on which a reversing light 33 is mounted. A reflective coating 111 is coated on the lower reflector 12 near the reversing light 33. Meanwhile, a second light-transmitting plate 211 is arranged on the sealing plate 21 near the reversing light 33. The second light-transmitting plate 211 is tilted along with the sealing plate 21. Under the action of the lower reflector 12, the light of the reversing light 33 is tilted downward, so that the rider can observe the road condition when reversing.
[0033] A boss 14 is provided on one side of the mounting base 1 close to the protective cover 2. The boss 14 is sleeved with the running light 31 to limit the position of the running light 31. At the same time, the surface of the boss 14 is connected to the brake light 32 to fix the position of the brake light 32. A support ring 22 is provided on the inner wall of the protective cover 2. The support ring 22 is made of rubber material. After installation, the support ring 22 abuts against the boss 14 to increase the length of the boss 14. Together with the boss 14, it plays a role of isolating the running light 31 and the brake light 32. At the same time, the support ring 22 supports the middle of the protective cover 2 to prevent the supporting force in the middle position of the protective cover 2 from being weak.
[0034] The interior of the boss 14 is a hollow structure for installing the microcontroller 4. The microcontroller 4 is set on the boss 14 near the taillight assembly 3, which does not take up too much space and does not affect the installation and maintenance of other components. A sealing plug 15 is engaged with the opening position of the boss 14. The boss 14 is sealed by the sealing plug 15, which can protect the microcontroller 4 from impact and water vapor. The microcontroller 4 is connected to the light sensor 41, which monitors the light intensity of the surrounding environment in real time and transmits the monitored light intensity information to the microcontroller 4. The microcontroller 4 is provided with a light intensity threshold. When the ambient light is lower than the threshold, the driving lights 31 are triggered to turn on. When the light returns to above the threshold, the driving lights 31 are turned off after a delay. The microcontroller 4 can be connected to the vehicle's speed control system so that the driving lights 31 can be kept on even during the day at a specific speed.
[0035] The sealing plug 15 includes a rubber shock-absorbing pad 151 and a heat-conducting sheet 152. The rubber shock-absorbing pad 151 is provided with a groove matching the heat-conducting sheet 152. The heat-conducting sheet 152 is embedded in the rubber shock-absorbing pad 151. The heat-conducting sheet 152 is engaged with one side of the microcontroller 4 to fix the position of the microcontroller 4 and absorb heat from the microcontroller 4. The rubber shock-absorbing pad 151 is provided with a heat dissipation hole 1511. The heat-conducting sheet 152 diffuses the heat through the heat dissipation hole 1511 to cool the microcontroller 4. Because it is wrapped by the rubber shock-absorbing pad 151, it plays a buffering role on the microcontroller 4. The rubber shock-absorbing pad 151 protrudes from the surface of the mounting base plate 1, so that heat dissipation gaps are left around the mounting base plate 1 after installation, thereby improving the heat dissipation effect. In addition, after being squeezed onto the mounting base plate 1, the rubber shock-absorbing pad 151 can play a shock-absorbing and buffering role.
[0036] Mounting blocks 23 are also provided at both ends of the protective cover 2, and the automatically turned on and off nighttime taillights are fixed as a whole by the mounting blocks 23.
[0037] In order to better demonstrate the implementation process of an automatic start and stop of a nighttime vehicle taillight, this embodiment now proposes an implementation method of an automatic start and stop of a nighttime vehicle taillight, comprising the following steps:
[0038] Step 1: When the car starts, the light sensor 41 installed in the middle of the upper reflective plate 11 starts to work. The light sensor 41 monitors the light intensity of the surrounding environment in real time through the first light-transmitting plate 112, and transmits the data to the microcontroller 4. The microcontroller 4 receives the light intensity information from the light sensor 41. If the ambient light is lower than the preset threshold, the microcontroller 4 triggers the driving light 31 to turn on. When the light returns to a value higher than the set threshold, the microcontroller 4 turns off the driving light 31 after a delay to avoid frequent switching.
[0039] Step 2: The brake light 32 is located in the middle of the driving light 31. When the driver steps on the brake pedal, the brake light 32 lights up immediately to send a deceleration signal to the rear vehicle. The upper reflector 11 and the lower reflector 12 are coated with a reflective coating 111 to help enhance the brightness of the brake light 32.
[0040] Step 3: The reversing light 33 is located below the driving light 31 and is tilted. It is installed on the fixing plate 121 and the light is enhanced by the reflective coating 111 on the lower reflector 12. When the vehicle is shifted into reverse gear, the reversing light 33 lights up to illuminate the area behind the vehicle. At the same time, the second light-transmitting plate 211 on the sealing plate 21 ensures that the light is tilted downward, which is convenient for the rider to observe the road conditions. The heat conductive sheet 152 directly contacts the microcontroller 4, absorbs heat and diffuses it through the heat dissipation holes 1511 to cool the microcontroller 4.
[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0042] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.
Claims
1. A nighttime vehicle taillight that automatically turns on and off, comprising a mounting base (1) and a protective cover (2), characterized in that: The mounting base plate (1) and the protective cover (2) are fixed by bolts; the mounting base plate (1) is connected to a tail light assembly (3) and a microcontroller (4); the tail light assembly (3) is arranged between the mounting base plate (1) and the protective cover (2); the microcontroller (4) is arranged on the mounting base plate (1) and is connected to the tail light assembly (3) to control the tail light assembly (3) to automatically turn on and off.
2. The automatic nighttime taillight according to claim 1, characterized in that: The taillight assembly (3) comprises a running light (31), a brake light (32) and a reversing light (33), wherein the running light (31) is in an elliptical ring structure, the brake light (32) is arranged in the middle of the running light (31), and the reversing light (33) is located below the running light (31) and is arranged at an angle.
3. The automatic nighttime taillight according to claim 2 is characterized in that: An upper reflector (11) and a lower reflector (12) are respectively arranged on the upper and lower sides of the mounting base plate (1), a reflective coating (111) is arranged on the inner walls of the upper reflector (11) and the lower reflector (12), and a heat sink (13) is arranged on the outer walls of the upper reflector (11) and the lower reflector (12).
4. The automatic nighttime taillight according to claim 3 is characterized in that: The heat sink (13) is an inverted trapezoidal structure. The upper and lower sides of the protective cover (2) are both provided with sealing plates (21) matching the heat sink (13). The sealing plate (21) is engaged with one side of the heat sink (13). Mounting blocks (23) are also provided at both ends of the protective cover (2).
5. The automatic nighttime taillight according to claim 4 is characterized in that: A light sensor (41) electrically connected to the microcontroller (4) is arranged in the middle of the upper light reflector (11), and a first light-transmitting plate (112) is fixedly connected to the upper light reflector (11) corresponding to the light sensor (41), wherein the first light-transmitting plate (112) is in the opposite direction to the light irradiation direction of the taillights of the vehicle at night.
6. The automatic nighttime taillight according to claim 5, characterized in that: A fixing plate (121) is arranged at the middle position of the lower reflective plate (12), a reversing light (33) is mounted on the fixing plate (121), and a second light-transmitting plate (211) is arranged at a position of the sealing plate (21) close to the reversing light (33).
7. The automatic nighttime taillight according to claim 6 is characterized in that: A boss (14) is provided on one side of the mounting base plate (1) close to the protective cover (2); the boss (14) is sleeved with the running light (31); the surface of the boss (14) is connected to the brake light (32); and a support ring (22) is provided on the inner wall of the protective cover (2).
8. The automatic nighttime taillight according to claim 7 is characterized in that: The boss (14) is mounted with a microcontroller (4), and a sealing plug (15) is engaged at the opening of the boss (14). The boss (14) is sealed by the sealing plug (15), and the microcontroller (4) is connected to a light sensor (41).
9. The automatically turned on and off nighttime taillight according to claim 8, characterized in that: The sealing plug (15) comprises a rubber shock-absorbing pad (151) and a heat-conducting sheet (152); a groove matching the heat-conducting sheet (152) is provided on the rubber shock-absorbing pad (151); the heat-conducting sheet (152) is embedded in the rubber shock-absorbing pad (151); the heat-conducting sheet (152) is engaged with one side of the microcontroller (4); and a heat-dissipating hole (1511) is provided on the rubber shock-absorbing pad (151).
10. A method for implementing the automatic start and stop of a nighttime vehicle taillight as claimed in claim 9, characterized in that: The following steps are involved: Step 1: When the vehicle is started, the light sensor (41) installed in the middle of the upper reflective plate (11) starts to work. The light sensor (41) monitors the light intensity of the surrounding environment in real time through the first light-transmitting plate (112) and transmits the data to the microcontroller (4). The microcontroller (4) receives the light intensity information from the light sensor (41). If the ambient light is lower than a preset threshold, the microcontroller (4) triggers the running lights (31) to turn on. When the light returns to a value higher than the set threshold, the microcontroller (4) turns off the running lights (31) after a delay to avoid frequent switching. Step 2: The brake light (32) is located in the middle of the driving light (31). When the driver steps on the brake pedal, the brake light (32) lights up immediately to send a deceleration signal to the vehicles behind. The upper reflector (11) and the lower reflector (12) are coated with a reflective coating (111) to help enhance the brightness of the brake light (32). Step 3: The reversing light (33) is located below the running light (31) and is tilted. It is installed on the fixing plate (121) and the light is enhanced by the reflective coating (111) on the lower reflective plate (12). When the vehicle is in reverse gear, the reversing light (33) lights up to illuminate the area behind the vehicle. At the same time, the second light-transmitting plate (211) on the sealing plate (21) ensures that the light is tilted downward, so that the rider can observe the road conditions.