LED module structure of automobile tail lamp

Abstract

The invention discloses an LED module structure of an automobile tail lamp, which belongs to the technical field of tail lamps and comprises a shell, an LED light source plate is rotatably arranged on the inner cavity wall of the shell, a rotating motor is mounted on the inner cavity wall of the shell, and a double-end gear is rotatably arranged on each of the upper side and the lower side of the inner cavity wall of the shell. A first gear on the right side of the LED light source plate drives a double-end gear on the upper side to rotate through a second gear, a third gear fixed to the rotating end of a motor drives a double-end gear on the lower side to rotate, telescopic rods are fixed to the positions, at the two ends of the double-end gear, of the mounting plate, rotating rods are rotationally arranged at the four corners of the inner cavity wall of the shell, and sliding blocks are fixed to the telescopic ends of the telescopic rods. Reflecting plates connected with the rotating rod are arranged on the upper and lower sides of the inner cavity of the shell, transparent plates in sliding connection with the inner cavity wall of the shell are arranged on the upper and lower sides of the inner cavity of the shell, and a U-shaped plate matched with the transparent plates for use is fixed at one end of the rotating rod. The anti-dazzle function of the tail lamp can be achieved through a mechanical structure and an intelligent adjusting system. The invention further provides an automobile tail lamp LED module system.

Description

Technical Field

[0001] The invention relates to the technical field of rear taillights, and in particular to an LED module structure of an automobile rear taillight. Background Art

[0002] In modern automobile design, taillights are important signal indicators of the vehicle. They are mainly used to provide clear visual instructions to vehicles and pedestrians behind when driving, braking, turning, etc. Taillights are usually installed on both sides of the vehicle and emit signal light through the light source to ensure that the driver behind can obtain vehicle dynamic information in a timely manner.

[0003] For traditional cars at night or in low light conditions, the high beams of the vehicles behind will be reflected on the rearview mirrors of the vehicles in front, obstructing the driver's field of vision, causing visual interference to the driver of the vehicle in front, and increasing the risk of traffic accidents. Therefore, existing taillight technology attempts to enhance the lighting function of the taillights to provide more light sources to help the vehicles behind, thereby reducing the need for the vehicles behind to use high beams.

[0004] However, in actual applications, when a rear vehicle approaches a front vehicle, the taillights of the front vehicle may still cause glare to the driver of the rear vehicle due to excessive light intensity or inappropriate illumination angle, especially for high-brightness LED taillights, whose strong light source is more likely to produce reflection and glare effects at close distances, posing a potential threat to road safety. Summary of the invention

[0005] The purpose of the present invention is to realize the anti-glare function of the taillight through a mechanical structure and an intelligent adjustment system.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automotive taillight LED module structure, comprising a housing for installation on the rear of the vehicle, an LED light source board is rotatably installed on the inner cavity wall of the housing, a motor for driving the LED light source board to rotate downward is installed on the inner cavity wall of the housing, a double-headed gear is rotatably installed on both the upper and lower sides of the inner cavity wall of the housing, gear 1 on the right side of the LED light source board drives the double-headed gear on the upper side to rotate through gear 2, and gear 3 fixed at the rotating end of the motor drives the double-headed gear on the lower side to rotate; A telescopic rod is fixed on the mounting plates at both ends of the double-headed gear, and rotating rods are rotated at the four corners of the inner cavity wall of the shell. A slider is fixed on the telescopic end of the telescopic rod and is slidably connected to the sliding hole on the surface of the rotating rod. Reflecting plates connected to the rotating rod are provided on the upper and lower sides of the inner cavity of the shell; Transparent plates slidably connected to the inner cavity wall of the shell are arranged on both upper and lower sides of the inner cavity of the shell, and a U-shaped plate used in conjunction with the transparent plate is fixed to one end of the rotating rod.

[0007] As a further description of the above technical solution: a lampshade is inlaid on the surface of the shell, and LED lamp beads with adjustable brightness are distributed on the surface of the LED light source board.

[0008] As a further description of the above technical solution: rotating shafts are fixed at both ends of the LED light source board, the rotating shaft on the left is connected to the rotating end of the motor through a pulley and a transmission belt, and the rotating shaft on the right is fixedly connected to gear one.

[0009] As a further description of the above technical solution: the gear 2 is rotatably connected to the inner wall of the shell, a distance sensor for monitoring the relative distance between the rear vehicle and the front vehicle is installed on the outer wall of the shell, and a light sensor is installed on the outer wall of the shell.

[0010] As a further description of the above technical solution: the double-headed gear is fixed to the mounting plate by bolts, and a reflective material is provided on a side of the reflective plate close to the LED light source plate.

[0011] As a further description of the above technical solution: the transparent plate has scattering properties or is coated with an anti-glare coating, and the sliding rod to which the transparent plate is fixed is located in the groove of the U-shaped plate.

[0012] An automobile rear taillight LED module system includes an automobile rear taillight LED module structure; The system further includes: a control unit installed on the surface of the LED light source board, the control unit receives signals from the light sensor and the distance sensor, and automatically adjusts the rotation angle of the LED light source board and the superposition state of the transparent plate according to the distance to the rear vehicle and the ambient light intensity, so as to adjust the light intensity of the taillight to prevent the rear driver from being dazzled.

[0013] As a further description of the above technical solution: the control unit can automatically adjust the angle of the reflector according to the feedback from the light sensor and the distance sensor, so that the light source of the taillight can reduce the light emission when the rear vehicle approaches.

[0014] As a further description of the above technical solution: the system includes a dimming module installed on the surface of the LED light source board, which is used to control the brightness of the LED light source board through pulse width modulation technology according to the distance to the rear vehicle, lighting conditions and system requirements.

[0015] As a further description of the above technical solution: the system includes a battery management unit installed on the surface of the LED light source board, which is used to monitor and optimize the charging, discharging and protection functions of the battery to ensure that the system can still operate stably when the vehicle power fails.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The LED light source board is driven by a motor to tilt downward, and the taillight light changes from being directly directed to the rear to irradiating more on the ground, effectively preventing the driver of the following vehicle from being dazzled by direct light. The reflector is adjusted synchronously during the rotation of the LED light source board, gradually changing from a tilted state to a parallel state, further optimizing the scattering angle of light, reducing the leakage of excess light, and protecting the sight comfort of the driver behind.

[0017] 2. During the movement of the LED light source plate and the reflective plate, the transparent plate is driven to slide by the U-shaped plate. When the rear vehicle approaches, the two transparent plates are gradually stacked to reduce the transmittance of the taillight and reduce the interference of direct light to the rear driver.

[0018] 3. Through the telescopic effect of the telescopic rod, the displacement of the slider can adjust the rotation angle of the rotating rod, and then adjust the rotation angle of the reflective plate and the moving distance of the transparent plate, and then adjust the light emission and light transmittance, and adjust the brightness of the taillight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The front view of the present invention is shown; Figure 2 A front cross-sectional view of the present invention is shown; Figure 3 Shown is a perspective view of the present invention; Figure 4 A side cross-sectional view of the present invention is shown; Figure 5 A perspective view showing a transparent plate of the present invention Figure 6 A stereoscopic view of the mounting plate, telescopic rod and rotating rod of the present invention is shown; Figure 7 A stereoscopic view of the double-headed gear, the mounting plate and the telescopic rod of the present invention is shown; Figure 8 The diagram shows the steps of rotating the LED light source plate and the reflective plate and moving the transparent plate of the present invention.

[0020] Legend: 10. Shell; 11. Motor; 12. Transparent plate; 121. Sliding rod; 13. Lamp cover; 14. Distance sensor; 15. Light sensor; 20. LED light source board; 21. LED lamp beads; 22. rotating shaft; 23. pulley; 24. transmission belt; 25. control unit; 26. dimming module; 27. battery management unit; 30. Double-headed gear; 31. Gear 1; 32. Gear 2; 33. Gear 3; 34. Mounting plate; 35. Telescopic rod; 351. Sliding block; 36. Rotating rod; 37. Reflecting plate; 38. U-shaped plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 8 The present invention provides a technical solution: an automotive taillight LED module structure, comprising a shell 10 for installation on the rear of the vehicle, an LED light source board 20 rotatably mounted on the inner wall of the shell 10, and a motor 11 for driving the LED light source board 20 to rotate downward is installed on the inner wall of the shell 10.

[0023] observe Figure 3 and Figure 4 and Figure 8 When the rear vehicle approaches the rear taillights of the front vehicle, the motor 11 drives the LED light source panel 20 to tilt downward to form a certain angle. The tilt of the LED light source panel 20 changes the direction of the taillight light, adjusting the light from directly irradiating the rear to irradiating more on the ground, thereby avoiding dazzle for the driver of the rear vehicle due to direct light, and effectively improving the safety of vehicle driving.

[0024] A double-headed gear 30 rotates on both the upper and lower sides of the inner cavity wall of the shell 10, and the gear 1 31 on the right side of the LED light source board 20 drives the double-headed gear 30 on the upper side to rotate through the gear 2 32. The gear 3 33 fixed at the rotating end of the motor 11 drives the double-headed gear 30 on the lower side to rotate. A telescopic rod 35 is fixed on the mounting plates 34 at both ends of the double-headed gear 30, and a rotating rod 36 rotates at the four corners of the inner cavity wall of the shell 10. The telescopic end of the telescopic rod 35 is fixed with a slider 351 slidably connected to the sliding hole on the surface of the rotating rod 36, and a reflecting plate 37 connected to the rotating rod 36 is provided on the upper and lower sides of the inner cavity of the shell 10.

[0025] observe Figure 3 and Figure 4 and Figure 8 When the motor 11 drives the LED light source board 20 to rotate downward, the gear 1 31 on the right side of the LED light source board 20 rotates downward synchronously, the gear 1 31 meshes with the gear 2 32, drives the gear 2 32 to rotate upward, and the gear 2 32 further drives the upper double-headed gear 30 and the upper mounting plate 34 to rotate downward; at the same time, the gear 3 33 fixed at the rotating end of the motor 11 also rotates downward, and the gear 3 33 then drives the lower double-headed gear 30 to rotate upward in the opposite direction.

[0026] The upper mounting plate 34 drives the upper rotating rod 36 to rotate downward through the upper telescopic rod 35 and the slider 351 connected thereto, thereby causing the upper reflecting plate 37 to rotate downward accordingly; at the same time, the lower double-headed gear 30 drives the lower reflecting plate 37 to rotate upward.

[0027] At this time, the reflective plates 37 on the upper and lower sides gradually change from the original inclined state to a parallel state. Through the above steps, during the downward rotation of the LED light source board 20, the reflective plates 37 on the upper and lower sides are gradually retracted and finally changed from the inclined state to a parallel state, thereby effectively reducing the emission of light sources.

[0028] The rotating rod 36 and the reflecting plate 37 move in a fan-shaped trajectory during the rotation process, and the slider 351 moves along the sliding hole on the surface of the rotating rod 36. Through the telescopic effect of the telescopic rod 35, the displacement of the slider 351 can adjust the rotation angle of the rotating rod 36, and then adjust the rotation angle of the reflecting plate 37, thereby finally realizing the control of the rotation angle of the reflecting plate 37.

[0029] Transparent plates 12 slidably connected to the inner wall of the shell 10 are provided on both upper and lower sides of the inner cavity of the shell 10 , and a U-shaped plate 38 used in conjunction with the transparent plate 12 is fixed to one end of the rotating rod 36 .

[0030] When the LED light source board 20 rotates downward, the rotating rod 36 drives the U-shaped plate 38 to move, and the U-shaped plate 38 further drives the transparent plates 12 on the upper and lower sides of the inner wall of the shell 10 to slide, and the transparent plates 12 are gradually overlapped during the sliding process. When the transparent plates 12 are overlapped, the transmittance of light from the middle of the rear taillight is greatly reduced, and the transmittance of light from the upper and lower sides of the rear taillight remains unchanged. Since the LED light source board 20 is tilted downward at this time, the light shines more on the ground, thereby avoiding dazzle to the driver of the following vehicle due to direct light, and effectively improving the safety of vehicle driving.

[0031] Furthermore, a lampshade 13 is inlaid on the surface of the housing 10 , and LED lamp beads 21 with adjustable brightness are distributed on the surface of the LED light source board 20 .

[0032] The housing 10 and the lampshade 13 can effectively protect the internal components from external physical damage, and have waterproof and dustproof functions to ensure that it can still operate normally in harsh environments. The housing 10 is made of high temperature resistant and corrosion resistant materials (such as ABS plastic, aluminum alloy, etc.) and has excellent sealing performance.

[0033] Furthermore, the two ends of the LED light source board 20 are fixed with rotating shafts 22, the left rotating shaft 22 is connected to the rotating end of the motor 11 through a pulley 23 and a transmission belt 24, and the right rotating shaft 22 is fixedly connected to a gear 31.

[0034] The motor 11 can drive the LED light source board 20 to rotate through the pulley 23 and the transmission belt 24 , and the LED light source board 20 can drive the gear 1 31 to rotate through the rotating shaft 22 on the right side.

[0035] Furthermore, the gear 2 32 is rotatably connected to the inner wall of the housing 10 , a distance sensor 14 for monitoring the relative distance between the rear vehicle and the front vehicle is installed on the outer wall of the housing 10 , and a light sensor 15 is installed on the outer wall of the housing 10 .

[0036] The distance sensor 14 can be an ultrasonic sensor, a radar sensor or the like, and the light sensor 15 can be a photoresistor or a laser sensor. The distance sensor 14 and the light sensor 15 together constitute a light sensing and distance sensing system for real-time detection of the approach and distance status of the rear vehicle. When the rear vehicle gradually approaches, the system will automatically adjust the positions of the LED light source board 20, the reflective board 37 and the transparent board 12 to reduce light interference to the rear driver; and when the rear vehicle gradually moves away, the LED light source board 20, the reflective board 37 and the transparent board 12 are reset to restore the original lighting effect.

[0037] Furthermore, the double-headed gear 30 is fixed to the mounting plate 34 by bolts, and a reflective material is provided on a side of the reflective plate 37 close to the LED light source plate 20 .

[0038] The reflector 37 can scatter light in a specific direction in an inclined state to enhance the visibility of the taillights. The surface of the reflector 37 is made of highly reflective material and is designed to be a suitable curved surface to ensure uniform distribution of light.

[0039] Furthermore, the transparent plate 12 has a scattering property or is coated with an anti-glare coating, and the sliding rod 121 to which the transparent plate 12 is fixed is located in the groove of the U-shaped plate 38 .

[0040] The transparent plate 12 may be made of an optically transparent material (such as plastic or glass) and coated with an anti-glare coating on its surface or a transparent plate 12 with scattering properties may be used. By designing a micro-convex surface or a micro-concave surface, the transparent plates 12 can effectively scatter light when they are stacked, thereby avoiding glare caused by concentrated light.

[0041] The present invention also provides an automotive taillight LED module system, including a control unit 25 installed on the surface of an LED light source board 20. The control unit 25 receives signals from a light sensor 15 and a distance sensor 14, and automatically adjusts the rotation angle of the LED light source board 20 and the superposition state of the transparent board 12 according to the distance to the rear vehicle and the ambient light intensity, so as to adjust the light intensity of the taillight to prevent the rear driver from being dazzled.

[0042] Furthermore, the control unit 25 can automatically adjust the angle of the reflector 37 according to the feedback from the light sensor 15 and the distance sensor 14, so that the light source of the taillight can be shielded when the rear vehicle approaches.

[0043] Furthermore, the system includes a dimming module 26 installed on the surface of the LED light source panel 20, which is used to control the brightness of the LED light source panel 20 through pulse width modulation technology according to the distance to the rear vehicle, lighting conditions and system requirements. The dimming module 26 is also connected to the vehicle's speed sensor, ambient light sensor and other systems to adjust the brightness in real time.

[0044] Furthermore, the system includes a battery management unit 27 mounted on the surface of the LED light source board 20 for monitoring and optimizing the charging, discharging and protection functions of the system battery to ensure that the system can still operate stably in the event of a vehicle power failure.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle taillight LED module structure, comprising a housing (10) for installation on the rear of the vehicle, characterized in that: An LED light source board (20) is rotatably mounted on the inner wall of the shell (10), a motor (11) for driving the LED light source board (20) to rotate downward is mounted on the inner wall of the shell (10), a double-headed gear (30) is rotatably mounted on both upper and lower sides of the inner wall of the shell (10), gear one (31) on the right side of the LED light source board (20) drives the double-headed gear (30) on the upper side to rotate via gear two (32), and gear three (33) fixed at the rotating end of the motor (11) drives the double-headed gear (30) on the lower side to rotate; A telescopic rod (35) is fixed on the mounting plates (34) at both ends of the double-headed gear (30); rotating rods (36) are rotatably provided at the four corners of the inner cavity wall of the housing (10); a sliding block (351) slidably connected to a sliding hole on the surface of the rotating rod (36) is fixed to the telescopic end of the telescopic rod (35); and a reflecting plate (37) connected to the rotating rod (36) is provided on both upper and lower sides of the inner cavity of the housing (10); Transparent plates (12) slidably connected to the inner wall of the outer shell (10) are provided on both upper and lower sides of the inner cavity of the outer shell (10), and a U-shaped plate (38) used in conjunction with the transparent plate (12) is fixed to one end of the rotating rod (36).

2. The automotive taillight LED module structure according to claim 1, characterized in that: The surface of the housing (10) is inlaid with a lampshade (13), and the surface of the LED light source panel (20) is distributed with LED lamp beads (21) with adjustable brightness.

3. The automotive taillight LED module structure according to claim 1, characterized in that: Rotating shafts (22) are fixed at both ends of the LED light source board (20); the left rotating shaft (22) is transmission-connected to the rotating end of the motor (11) via a pulley (23) and a transmission belt (24); and the right rotating shaft (22) is fixedly connected to gear one (31).

4. The automotive taillight LED module structure according to claim 1, characterized in that: The second gear (32) is rotatably connected to the inner wall of the housing (10), and a distance sensor (14) for monitoring the relative distance between the rear vehicle and the front vehicle is installed on the outer wall of the housing (10). A light sensor (15) is installed on the outer wall of the housing (10).

5. The automotive taillight LED module structure according to claim 1, characterized in that: The double-headed gear (30) is fixed to the mounting plate (34) by means of bolts, and a reflective material is provided on a side of the reflective plate (37) close to the LED light source plate (20).

6. The automotive taillight LED module structure according to claim 1, characterized in that: The transparent plate (12) has a scattering property or is coated with an anti-glare coating, and the sliding rod (121) to which the transparent plate (12) is fixed is located in a groove of the U-shaped plate (38).

7. An automotive taillight LED module system, characterized in that: The system comprises the automotive taillight LED module structure as claimed in any one of claims 1 to 6; the system further comprises: a control unit (25) installed on the surface of the LED light source board (20), the control unit (25) receiving signals from the light sensor (15) and the distance sensor (14), and automatically adjusting the rotation angle of the LED light source board (20) and the superposition state of the transparent board (12) according to the distance to the rear vehicle and the ambient light intensity, so as to adjust the light intensity of the taillight to prevent the rear driver from being dazzled.

8. The automotive taillight LED module system according to claim 7, characterized in that: The control unit (25) can automatically adjust the angle of the reflective plate (37) according to feedback from the light sensor (15) and the distance sensor (14), so that the light source of the taillight can reduce the light emitted when the rear vehicle approaches.

9. The automotive taillight LED module system according to claim 7, characterized in that: The system comprises a dimming module (26) mounted on the surface of the LED light source panel (20), which is used to control the brightness of the LED light source panel (20) through pulse width modulation technology according to the distance to the rear vehicle, lighting conditions and system requirements.

10. The automotive taillight LED module system according to claim 7, characterized in that: The system comprises a battery management unit (27) mounted on the surface of the LED light source panel (20) and used for monitoring and optimizing the charging, discharging and protection functions of the battery, thereby ensuring that the system still operates stably when the vehicle power supply fails.

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