LED auxiliary module and vehicle lamp thereof
By designing an LED auxiliary module and using lens components and reflectors to reflect light, the problem of dark areas at the junction of high and low beams in LED automotive headlights has been solved, achieving a wider lighting range and higher brightness, thus improving the safety and comfort of driving and autonomous driving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANYANG YINUO PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-21
AI Technical Summary
In existing LED automotive headlights, there is a noticeable dark area at the junction of the high beam and low beam sections in the integrated high and low beam modules. This results in blind spots for the driver and reduces nighttime driving safety, affecting the nighttime driving safety of autonomous vehicles.
An LED auxiliary module was designed, including a lens assembly, a mounting bracket, a light source assembly, and a heat sink. It reflects light through high beam and low beam reflectors to form high beam auxiliary beams and low beam auxiliary beams, which provide supplementary lighting for dark areas and areas with insufficient brightness, respectively.
It effectively eliminates the dark area at the junction of high beam and low beam, improves the driver's visibility and the safety of autonomous vehicles at night, and enhances the safety and comfort of nighttime driving.
Smart Images
Figure CN224534085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, and in particular to an LED auxiliary module and its vehicle lighting. Background Technology
[0002] With the advancement of industrialization, automobiles have become an indispensable means of transportation in people's lives. The requirements and performance of car lights have also become increasingly refined. Nowadays, in order to improve the lighting effect and illumination effect of car lights, people have higher and higher requirements for the design of car lights.
[0003] LEDs possess advantages such as energy saving, environmental friendliness, high luminous efficiency, good shock resistance, fast lighting speed, low light decay, long lifespan, and small size, thus well meeting the requirements of the automotive industry. In recent years, with the development of science and technology, their application scope has become increasingly wide, expanding from signal indicator lights to the lighting field, and LED automotive headlights have received widespread attention from the industry.
[0004] With the increasing application of LED automotive headlights, customer demands for them are also rising. Existing integrated high and low beam modules in LED headlights, which provide both low and high beam functions, suffer from a problem. Because the cutoff line in the low beam pattern is formed by the light emitted from the light source being blocked by a light-blocking plate, when the high beam function is activated, the light-blocking plate creates a noticeable dark area between the high and low beam sections. This dark area can create blind spots for drivers, posing a danger, and can also lead to misjudgments and hazards in vehicles using purely vision-based autonomous driving systems at night. Furthermore, when providing low beam function, the brightness decreases as the horizontal beam width increases, and the downward beam only reaches 7 degrees, directly reducing nighttime driving safety. This diminishes the driver's ability to judge obstacles, blind spots, and oncoming distances, and can also cause misjudgments and hazards in vehicles using purely vision-based autonomous driving systems at night.
[0005] Therefore, there is an urgent need to develop an LED auxiliary module to supplement the high beam and low beam functions provided by the integrated high and low beam module, thereby solving the above problems and further improving driving safety. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an LED auxiliary module and its vehicle lighting, which can effectively solve the problems existing in the prior art.
[0007] This utility model is achieved through the following technical solution:
[0008] An LED auxiliary module includes a lens assembly, a mounting bracket, a light source assembly, and a heat sink. The lens assembly is disposed at the front end of the mounting bracket. A high beam reflector is disposed on the mounting bracket, and the high beam reflector has a side-emitting structure. The light source assembly includes a high beam LED light source. The light source assembly is disposed at the rear end of the mounting bracket via the heat sink. A light-blocking plate is disposed on the heat sink and is located in front of the high beam LED light source. The light-blocking plate is used to block stray light reflected from the edge of the high beam reflector and direct light from the high beam LED light source. The light provided by the high beam LED light source is reflected by the high beam reflector, blocked by the light-blocking plate, and then emitted by the lens assembly to form a high beam auxiliary beam. The high beam auxiliary beam is used to illuminate the dark area between the high beam and low beam portions in the main high beam pattern.
[0009] Furthermore, according to the LED auxiliary module of this utility model, a low beam reflector is also provided on the mounting bracket. The low beam reflector is a side-emitting structure. The light source assembly also includes a low beam LED light source. The light provided by the low beam LED light source is reflected by the low beam reflector and then passes through the lens assembly to form a low beam auxiliary beam. The low beam auxiliary beam is used to illuminate the range of HH: -38 to 38 degrees and VV: -2 to -12 degrees in the main low beam pattern.
[0010] Furthermore, according to the LED auxiliary module of this utility model, the heat sink includes an installation area and an area-increasing area. The area-increasing area is disposed at the rear end of the installation area. The installation area is used to abut against the light source assembly, so that the light source assembly is fixed on the mounting bracket. The area-increasing area is used to increase the heat dissipation area.
[0011] Furthermore, according to the LED auxiliary module of this utility model, the light source assembly is mounted on the mounting bracket and tilted at an angle.
[0012] Furthermore, according to the LED auxiliary module of this utility model, the mounting bracket is provided with rearwardly extending mounting platforms on both sides of the high beam reflector. The lower surface of the mounting platform is provided with a first platform, a second platform, mounting post holes, and limiting posts. The first platform is used to support the light source assembly, and the second platform is used to support the mounting area. The mounting area is provided with limiting holes and mounting holes, and the light source assembly is provided with limiting holes. The heat sink and the light source assembly are stacked on the lower surface of the mounting platform. The limiting posts pass through the limiting holes on the light source assembly and the mounting area in sequence, thereby limiting the light source assembly and the heat sink to the mounting bracket simultaneously. Then, screws are used to pass through the mounting holes on the mounting area and connect with the mounting post holes, thereby fixing the light source assembly and the heat sink to the mounting bracket simultaneously.
[0013] Furthermore, according to the LED auxiliary module of this utility model, the mounting platform is also provided with snap-fit feet on the outside of the second platform. The snap-fit feet form a limiting groove with the second platform. The two rear ends of the mounting area are respectively inserted into the limiting groove, so that the two rear ends of the mounting area are respectively attached to the second platform through the limiting groove.
[0014] Furthermore, according to the LED auxiliary module of this utility model, the snap-fit foot includes an extension strip and a snap-fit boss. The snap-fit boss is disposed at the bottom of the extension strip and protrudes inward. An inclined surface is provided on the inward side of the snap-fit boss, and the inclined surface plays a guiding role when the heat sink is installed.
[0015] Furthermore, according to the LED auxiliary module of this utility model, the lens assembly includes a lens and a lens bracket, and the lens is mounted on the mounting bracket via the lens bracket.
[0016] Furthermore, according to the LED auxiliary module of this utility model, the lens is made of PC material, and decorative parts are integrally provided around the lens, with a layer of black paint on the surface of the decorative parts.
[0017] A vehicle headlight, including an LED auxiliary module as described above.
[0018] This invention features a simple structure and easy installation. The high beam auxiliary beam provided by the LED auxiliary module supplements the light in the area where a noticeable dark zone appears between the high beam and low beam sections of the main high beam pattern, thus solving the blind spot problem. The low beam auxiliary beam provided by the LED auxiliary module supplements the light in the range of HH: -38 to 38 degrees and VV: -2 to -12 degrees in the main low beam pattern, expanding the vertical illumination range and improving the horizontal illumination brightness, thereby further enhancing the safety of nighttime driving and effectively solving the problems existing in the prior art. Attached Figure Description
[0019] Figure 1 This is a front view of the LED auxiliary module in this utility model.
[0020] Figure 2 This is a right view of the LED auxiliary module in this utility model.
[0021] Figure 3 This is a perspective view of the LED auxiliary module in this utility model.
[0022] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure of AA.
[0023] Figure 5 yes Figure 3 Exploded view of the structure of the LED auxiliary module.
[0024] Figure 6 This is a schematic diagram of the rear structure of the LED auxiliary module after the lens assembly has been removed in this utility model.
[0025] Figure 7 This is a schematic diagram of the rear structure of the mounting bracket in the LED auxiliary module of this utility model.
[0026] Figure 8 yes Figure 7 Enlarged view of the structure within the dashed box.
[0027] In the picture:
[0028] LED auxiliary module 10, lens assembly 1, lens 11, decorative part 111, lens bracket 12, mounting bracket 2, high beam reflector 21, low beam reflector 22, mounting platform 23, first platform 231, second platform 232, snap-fit foot 233, extension strip 2331, snap-fit boss 2332, bevel 2333, light source assembly 3, high beam LED light source 31, low beam LED light source 32, heat sink 4, light blocking plate 41, mounting area 42, area increase area 43, limiting mechanism 5, limiting post 51, limiting hole 52, mounting hole 6, mounting post hole 7, limiting groove 8. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] like Figure 1-8As shown, a vehicle headlight includes an LED auxiliary module 10, which is the LED auxiliary module referred to in this utility model. Specifically, the LED auxiliary module 10 includes a lens assembly 1, a mounting bracket 2, a light source assembly 3, and a heat sink 4. The lens assembly 1 is disposed at the front end of the mounting bracket 2. A high beam reflector 21 is disposed on the mounting bracket 2, and the high beam reflector 21 is a side-emitting structure. The light source assembly 3 includes a high beam LED light source 31. The light source assembly 3 is disposed at the rear end of the mounting bracket 2 through the heat sink 4. A light-blocking plate 41 is disposed on the heat sink 4, and the light-blocking plate 41 is located in front of the high beam LED light source 31. The light-blocking plate 41 is used to block stray light reflected from the edge of the high beam reflector 21 and direct light from the high beam LED light source 31. The light provided by the high beam LED light source 31 is reflected by the high beam reflector 21, blocked by the light-blocking plate 41, and then emitted from the lens assembly 1 to form a high beam auxiliary beam. The high beam auxiliary beam is used to illuminate the dark area that appears between the high beam and low beam parts in the main high beam pattern. In this embodiment, the lens assembly 1 is provided with a mounting hole 6, and the mounting bracket 2 is provided with a mounting post hole 7. Screws are passed through the mounting hole 6 and the mounting post hole 7 to connect and fix the lens assembly 1 to the mounting bracket 2. To improve installation accuracy, a limiting mechanism 5 is provided between the lens assembly 1 and the mounting bracket 2. The limiting mechanism 5 limits the lens assembly 1 to the mounting bracket 2. The limiting mechanism 5 includes a limiting post 51 and a limiting hole 52. The limiting post 51 is inserted into the limiting hole 52 to achieve the limiting. The heat sink 4 is provided with a mounting hole 6, and the mounting bracket 2 is provided with a mounting post hole 7. The light source assembly 3 and the heat sink 4 are stacked on the mounting bracket 2. Screws are then passed through the mounting hole 6 and the mounting post hole 7 on the heat sink 4 to connect and fix the light source assembly 3 and the heat sink 4 to the rear end of the mounting bracket 2. To improve installation accuracy and stability of the light source assembly 3, a limiting mechanism 5 is provided between the light source assembly 3, the heat sink 4, and the mounting bracket 2. The limiting mechanism 5 simultaneously limits the light source assembly 3 and the heat sink 4 to the mounting bracket 2. Then, screws are used to fix the heat sink 4 to the mounting bracket 2, and the light source assembly 3 is simultaneously fixed to the mounting bracket 2 via the heat sink 4. The light source assembly 3 includes a high beam LED light source 31, which is located at or near the focal point of the high beam reflector 21. The light provided by the high beam LED light source 31 is reflected by the high beam reflector 21 and blocked by the light-blocking plate 41, before being emitted by the lens assembly 1 to form an auxiliary high beam. This illuminates the dark area between the high beam and low beam sections of the main high beam pattern, solving blind spots and improving driver safety.
[0031] To enhance the versatility of the LED auxiliary module 10, a low beam reflector 22 is also provided on the mounting bracket 2. The low beam reflector 22 is a side-emitting structure. The light source assembly 3 also includes a low beam LED light source 32. The light provided by the low beam LED light source 32 is reflected by the low beam reflector 22 and then passes through the lens assembly 1 to form a low beam auxiliary beam. The low beam auxiliary beam is used to illuminate the HH range of -38 to 38 degrees and the VV range of -2 to -12 degrees in the main low beam pattern. By increasing the brightness on both sides of the main low beam pattern and the downward illumination width through the low beam auxiliary beam, the driving safety and comfort are greatly improved. In this embodiment, the mounting bracket 2 is provided with a low beam reflector 22 above the high beam reflector 21. The light source assembly 3 also includes two low beam LED light sources 32, which are located near the focal point of the low beam reflector 22. The light provided by the two low beam LED light sources 32 is reflected by the low beam reflector 22 and then emitted by the lens assembly 1 to form a low beam auxiliary beam. The low beam auxiliary beam illuminates the range of HH: -38 to 38 degrees and VV: -2 to -12 degrees in the main low beam pattern, allowing the driver to obtain more road information at night or in low light conditions, thereby making more timely judgments and operations, ultimately reducing the risk of traffic accidents and improving driving safety and comfort.
[0032] To improve heat dissipation, the heat sink 4 includes a mounting area 42 and an area-enhancing area 43. The area-enhancing area 43 is located at the rear end of the mounting area 42. The mounting area 42 is used to abut against the light source assembly 3, fixing the light source assembly 3 to the mounting bracket 2. The area-enhancing area 43 increases the heat dissipation area, further improving the heat dissipation effect and thus extending the service life of the light source assembly 3. In this embodiment, the light-blocking plate 41 is integrally disposed at the front end of the mounting area 42. A layer of thermally conductive silicone grease can also be disposed between the mounting area 42 and the light source assembly 3 to further enhance the heat dissipation effect.
[0033] Furthermore, the light source assembly 3 is mounted on the mounting bracket 2 at an angle. This angled tilt ensures that the brightest point of the auxiliary high beam falls on or near the cutoff line of the low beam portion of the main high beam pattern, while also increasing the brightness of the auxiliary low beam. In this embodiment, the light source assembly 3 is fixedly mounted on the mounting bracket 2 via a heat sink, and the tilt angle of the light source assembly 3 is 6 degrees. This 6-degree tilt angle ensures that the brightest point of the auxiliary high beam falls on the cutoff line of the low beam portion of the main high beam pattern; simultaneously, the 6-degree tilt angle improves the effective utilization rate of the low beam LED light source 32, further enhancing the brightness of the auxiliary low beam.
[0034] Furthermore, the mounting bracket 2 has rearwardly extending mounting platforms 23 on both sides of the high beam reflector 21. The lower surface of the mounting platform 23 is provided with a first platform 231, a second platform 232, mounting post holes 7, and limiting posts 51. The first platform 231 is used to support the light source assembly 3, and the second platform 232 is used to support the mounting area 42. The mounting area 42 is provided with limiting holes 52 and mounting holes 6. The light source assembly 3 is provided with limiting holes 52. The heat sink 4 and the light source assembly 3 are stacked on the lower surface of the mounting platform 23. The limiting posts 51 pass through the limiting holes 52 on the light source assembly 3 and the mounting area 42 in sequence, so that the light source assembly 3 and the heat sink 4 are simultaneously limited on the mounting bracket 2. Then, screws are used to pass through the mounting holes 6 on the mounting area 42 and connect with the mounting post holes 7, so that the light source assembly 3 and the heat sink 4 are simultaneously fixed on the mounting bracket 2. In this embodiment, in order to prevent the end of the mounting area 42 connected to the area-increased area 43 from tilting up after the mounting area 42 is fixed, thus affecting the quality of the low beam auxiliary beam, the mounting platform 23 is also provided with a snap-fit foot 233 on the outside of the second platform 232. The snap-fit foot 233 and the second platform 232 form a limiting groove 8. The two rear ends of the mounting area 42 are respectively inserted into the limiting groove 8, and the two rear ends of the mounting area 42 are respectively attached to the second platform 232 through the limiting groove 8, thereby preventing the rear end of the mounting area 42 from tilting up after fixing.
[0035] To facilitate the installation of the heatsink 4, the locking pin 233 includes an extension strip 2331 and a locking boss 2332. The locking boss 2332 is located at the bottom of the extension strip 2331 and protrudes inward. A slope 2333 is provided on the inward-facing side of the locking boss 2332, which serves as a guide during the installation of the heatsink 4. Specifically, the extension strip 2331 makes the locking pin 233 elastic. During the installation of the heatsink 4, the heatsink 4 slides along the slope 2333, gradually pushing against it. The locking boss 2332 deforms outward under force, allowing the heatsink 4 to enter the slot 8. After the slope 2333 loses its force, the locking boss 2332 returns to its original position. At this time, the top surface of the mounting area 42 on the heatsink 4 contacts the second platform 232, and the bottom surface of the mounting area 42 contacts the upper surface of the locking boss 2332. To facilitate the removal of the heatsink 4, the upper surface of the locking boss 2332 is angled.
[0036] Further, the lens assembly 1 includes a lens 11 and a lens holder 12, with the lens 11 mounted on the mounting bracket 2 via the lens holder 12. Specifically, to improve installation accuracy, a limiting mechanism 5 is provided between the lens 11 and the lens holder 12, limiting the lens 11 to the lens holder 12. In this embodiment, the lens 11 is made of PC material, and the lens holder 12 is also made of PC material. The lens 11 has a limiting hole 52, and the lens holder 12 has a limiting post 51 located in the limiting hole 52, thus limiting the lens 11 to the lens holder 12. The lens 11 is then welded to the lens holder 12 using a welding process. The lens holder 12 has a mounting hole 6, and the mounting bracket 2 has a mounting post hole 7. Screws are used to pass through the mounting hole 6 and connect to the mounting post hole 7, thereby fixing the lens holder 12 to the front end of the mounting bracket 2. A limiting mechanism 5 is also provided between the lens holder 12 and the mounting bracket 2. The limiting post 51 is provided on the mounting bracket 2, and the limiting hole 52 is provided on the lens holder 12. The limiting hole 52 and the limiting post 51 cooperate to limit the lens holder 12 on the mounting bracket 2. Then, screws are used to connect the mounting hole 6 and the mounting post hole 7 to fix the lens holder 12 on the mounting bracket 2.
[0037] To prevent the center of the lens 11 from misaligning with the center of the light-emitting hole on the decorative cover inside the headlight during optical adjustment of the LED auxiliary module 10, which would cause the gap between the lens 11 and the light-emitting hole to widen and reveal the interior of the headlight, thus degrading its aesthetics, a decorative element 111 is integrally formed around the lens 11. The surface of the decorative element 111 is coated with a layer of black paint. This decorative element 111 conceals the gap and further enhances the aesthetics of the headlight. Of course, the black paint layer can also be an aluminum-plated layer; there are no color restrictions, and the color can be customized according to customer needs.
Claims
1. An LED auxiliary module, characterized in that, The device includes a lens assembly, a mounting bracket, a light source assembly, and a heat sink. The lens assembly is disposed at the front end of the mounting bracket. A high beam reflector is disposed on the mounting bracket, and the high beam reflector has a side-emitting structure. The light source assembly includes a high beam LED light source. The light source assembly is disposed at the rear end of the mounting bracket via the heat sink. A light-blocking plate is disposed on the heat sink and is located in front of the high beam LED light source. The light-blocking plate is used to block stray light reflected from the edge of the high beam reflector and direct light from the high beam LED light source. The light provided by the high beam LED light source is reflected by the high beam reflector, blocked by the light-blocking plate, and then formed by the lens assembly to form a high beam auxiliary beam. The high beam auxiliary beam is used to illuminate the dark area that appears between the high beam and low beam in the main high beam pattern.
2. The LED auxiliary module according to claim 1, characterized in that, The mounting bracket is also equipped with a low beam reflector, which is a side-emitting structure. The light source assembly also includes a low beam LED light source. The light provided by the low beam LED light source is reflected by the low beam reflector and then passes through the lens assembly to form a low beam auxiliary beam. The low beam auxiliary beam is used to illuminate the range of HH: -38 to 38 degrees and VV: -2 to -12 degrees in the main low beam pattern.
3. The LED auxiliary module according to claim 2, characterized in that, The heat sink includes an installation area and an area-increasing area. The area-increasing area is located at the rear end of the installation area. The installation area is used to abut against the light source assembly, so that the light source assembly is fixed on the mounting bracket. The area-increasing area is used to increase the heat dissipation area.
4. An LED auxiliary module according to claim 3, characterized in that, The light source assembly is mounted on the mounting bracket and is tilted at an angle.
5. An LED auxiliary module according to claim 4, characterized in that, The mounting bracket has rearwardly extending mounting platforms on both sides of the high beam reflector. The lower surface of the mounting platform has a first platform, a second platform, mounting post holes, and limiting posts. The first platform supports the light source assembly, and the second platform supports the mounting area. The mounting area has limiting holes and mounting holes, and the light source assembly has limiting holes. The heat sink and the light source assembly are stacked on the lower surface of the mounting platform. The limiting posts pass through the limiting holes on the light source assembly and the mounting area in sequence, thereby limiting the light source assembly and the heat sink to the mounting bracket simultaneously. Then, screws are used to pass through the mounting holes on the mounting area and connect with the mounting post holes, thereby fixing the light source assembly and the heat sink to the mounting bracket simultaneously.
6. An LED auxiliary module according to claim 5, characterized in that, The mounting platform is also provided with snap-fit feet on the outside of the second platform. The snap-fit feet form a limiting groove with the second platform. The two rear ends of the mounting area are respectively inserted into the limiting groove, so that the two rear ends of the mounting area are respectively attached to the second platform through the limiting groove.
7. An LED auxiliary module according to claim 6, characterized in that, The snap-fit foot includes an extension strip and a snap-fit boss. The snap-fit boss is located at the bottom of the extension strip and protrudes inward. The snap-fit boss has an inclined surface on its inward side, which serves as a guide when the radiator is installed.
8. An LED auxiliary module according to claim 1, characterized in that, The lens assembly includes a lens and a lens holder, with the lens mounted on the mounting bracket via the lens holder.
9. An LED auxiliary module according to claim 8, characterized in that, The lens is made of PC material, and decorative parts are integrally formed around the lens, with a layer of black paint on the surface of the decorative parts.
10. A vehicle light, characterized in that, Includes the LED auxiliary module as described in any one of claims 1-9.