A side turn signal of category 6 and a method of assembling the same

Abstract

The application discloses a 6-type side turn signal lamp and an assembling method thereof, which comprises a shell, a radiator fixed on one side of the shell, a lampshade fixed on the other side of the shell, and a closed mounting cavity formed by the shell, the radiator and the lampshade; a light source assembly is fixed on one side of the mounting cavity close to the radiator, and an integrated optical distribution body is fixed on the other side close to the lampshade; the integrated optical distribution body is opposite to the light emitting direction of the light source assembly, and can collimate, refract, totally reflect, diffuse and homogenize the light entering the integrated optical distribution body, so that the outgoing light of the 6-type side turn signal lamp meets the light distribution requirement. The combination structure of the LED light source and the integrated optical distribution body is adopted, the overall structure is compact and small, the lamp appearance size is effectively reduced, and the appearance modeling requirement of various types of small and medium-sized commercial vehicles can be met. Meanwhile, the overall structure is designed for the vehicle side longitudinal arrangement working condition, and completely meets the installation specification and use scene of the independent side turn signal lamp of the commercial vehicle.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, specifically to a type 6 side turn signal and its assembly method. Background Technology

[0002] Category 6 side turn signals are dedicated turn signal lights mounted on the sides of vehicles. They are primarily used to convey driving intentions to surrounding road users when the vehicle is turning or changing lanes, serving as a crucial external light signal device for ensuring driving safety. These lights are widely used in various commercial vehicle models. Compared to Category 5 side turn signals, Category 6 side turn signals have higher requirements for optical performance and are more challenging to design. Due to vehicle installation constraints, Category 6 side turn signals in the commercial vehicle sector typically employ an independent assembly structure rather than an integrated structure with the rearview mirror. At the product development level, the core design directions for these lights mainly include structural miniaturization, optical path optimization, light source heat dissipation, and adaptation to the longitudinal installation configuration of the vehicle body.

[0003] Currently, the six types of side turn signals are mainly divided into two categories: traditional bulb structures and new LED structures. Traditional solutions generally use a 21-watt bulb as the light source, relying on the bulb and reflector components to project light. The entire system relies on a large cavity to house the light source and optical components. With the gradual popularization of LED light sources, two mainstream LED side turn signal solutions have emerged in the industry: The first solution integrates the LED light source and reflector into a closed housing, adopting a vertical layout design. By partitioning the internal space to arrange the light source and circuit components, basic light distribution and heat dissipation can be achieved. The second solution uses a multi-group discrete lens combination optical structure, combined with LED light sources of different functions. Various lenses are used to form light spots at different angles. This structure can adapt to longitudinal mounting of the lamp, and the overall lamp size is smaller than that of traditional bulb lamps.

[0004] Traditional bulb-type side turn signals are limited by the size of the light source and its heat dissipation characteristics, resulting in a large overall size that is difficult to match the appearance requirements of small commercial vehicles. The first type of LED solution, constrained by its optical path and internal structure, is only suitable for vertical installations and cannot meet the needs of longitudinally arranged vehicles, while also lacking aesthetic appeal when illuminated. The second type of longitudinally arranged LED solution uses multiple independent light-emitting structures, resulting in fragmented and discontinuous light-emitting surfaces and poor uniformity of light after illumination.

[0005] In summary, existing technologies cannot simultaneously meet the comprehensive requirements of longitudinal mounting, continuous and uniform light output, efficient heat dissipation, and miniaturized design, and thus have many technical shortcomings. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a type 6 side turn signal and its assembly method that takes into account longitudinal mounting, continuous and uniform light output, and meets the comprehensive requirements of efficient heat dissipation and miniaturized design.

[0007] To achieve this objective, the present invention designs a type 6 side turn signal, comprising a housing, a heat sink fixed to one side of the housing, and a lampshade fixed to the other side, the housing, the heat sink, and the lampshade forming a sealed mounting cavity; a light source assembly is fixed within the mounting cavity, near the heat sink, and an integrated optical light distributor is fixed to the side near the lampshade; the integrated optical light distributor faces the light emission direction of the light source assembly and can collimate, refract, perform total internal reflection, scattering, and homogenize the light entering the integrated optical light distributor, so that the emitted light of the type 6 side turn signal meets the light distribution requirements.

[0008] Furthermore, the lampshade has multiple stripe structures on one side surface facing the integrated optical light distributor. These multiple stripe structures can further disperse and homogenize the emitted light of the six types of side turn lights and weaken the internal structure of the six types of side turn lights.

[0009] Furthermore, the light source assembly includes a PCB board and multiple LED beads arranged at equal intervals and fixed on the PCB board.

[0010] Furthermore, the heat sink includes a heat sink plate sealed and fixed inside one side of the housing. Thermal grease is disposed between the heat sink plate and the PCB board on the side facing the PCB board, and multiple heat dissipation ribs are disposed on the side of the heat sink plate facing away from the PCB board.

[0011] Furthermore, the integrated optical light distribution body includes multiple collimating lenses arranged one-to-one with the LED beads, and an optical substrate integral with the multiple collimating lenses for refracting, total internal reflection, astigmatism and homogenization of light passing through the multiple collimating lenses.

[0012] Furthermore, the optical substrate has multiple windows, including a first window optical surface for refracting, scattering and homogenizing a portion of the light passing through the collimating lens, and a second window optical surface for total internal reflection of another portion of the light passing through the collimating lens.

[0013] Furthermore, the optical substrate includes a first substrate optical surface for total internal reflection of light passing through the collimating lens; a second substrate optical surface for scattering and homogenizing light passing through the first substrate optical surface and light passing through the second window optical surface; and a third substrate optical surface for scattering and homogenizing light passing through the first window optical surface.

[0014] Furthermore, the side surface of the optical substrate facing the lampshade includes the first substrate optical surface, the second substrate optical surface, and the third substrate optical surface.

[0015] Furthermore, a method for assembling a Class 6 side turn signal includes: fixing a light source assembly inside the housing near the heat sink; sealing and fixing the heat sink to one side of the housing, so that the heat sink presses against the light source assembly; fixing an integrated optical light distributor inside the housing near the lamp cover, so that the integrated optical light distributor and the light emission direction of the light source assembly are directly opposite each other; sealing and fixing the lamp cover to the other side of the housing; the lamp cover, housing, and heat sink together form a sealed mounting cavity.

[0016] Furthermore, the above assembly method also includes: applying thermally conductive silicone grease to the surface of the light source assembly near the heat sink; installing a rubber sealing gasket at the joint between the housing and the heat sink; and using ultrasonic welding to seal and fix the lampshade to the housing.

[0017] The beneficial effects of this invention are as follows: This invention adopts a combination structure of LED light source and integrated optical light distributor, abandoning the large cavity design of traditional 21-watt bulbs. The overall structure is compact and small, effectively reducing the size of the lamp and adapting to the appearance requirements of various small and medium-sized commercial vehicles. At the same time, the overall structure of this invention is specifically designed for longitudinal side-mounted applications on vehicles, breaking through the limitation of some existing LED side turn lights that can only be installed vertically, and fully meeting the installation specifications and usage scenarios of independent side turn lights for commercial vehicles.

[0018] This invention employs a one-piece integrated optical distribution body, integrating the collimating lens, optical substrate, multiple windows, and various functional optical surfaces into a single component. The LED beads and collimating lens are aligned directly, ensuring a stable light transmission path. Light sequentially undergoes collimation, refraction, total internal reflection, multi-level scattering, and homogenization. Further dispersion is achieved through the striped structure inside the lampshade, completely resolving the defects of fragmented light-emitting surfaces and uneven light distribution in existing discrete lens-structured lamps. The resulting light is continuous and uniform after the lamp is illuminated. The entire optical structure can precisely control the light intensity distribution across different angle ranges, strictly meeting the light distribution regulations for Category 6 side turn signals. Simultaneously, the stripes inside the lampshade soften the appearance of the internal structure of the lamp, enhancing its aesthetic appeal.

[0019] This invention employs an independent heat sink as a heat dissipation component. The heat sink's heat dissipation plate is tightly bonded to the PCB board of the light source assembly using thermally conductive silicone grease, significantly reducing thermal resistance and enabling rapid dissipation of heat generated by the LED. Multiple heat dissipation fins are arranged on the outer side of the heat sink, effectively increasing the contact area with air and enhancing convection heat dissipation. This allows for timely dissipation of operating heat, suppressing LED light decay and lamp burnout, and significantly improving the long-term stability and lifespan of the luminaire. Furthermore, the heat sink can be simultaneously bonded to the light source assembly after assembly, achieving integrated structural fixation and heat dissipation, simplifying the internal layout.

[0020] This invention comprises a housing, a lampshade, and a heat sink, forming a sealed installation cavity. Combined with sealing structures such as the rubber sealing gasket between the housing and the heat sink, and the ultrasonic welding between the housing and the lampshade, it possesses excellent waterproof and dustproof capabilities. It can resist the intrusion of mud, water, and dust during vehicle operation, effectively protecting the light source components and optical components inside the cavity. It is suitable for the complex outdoor operating conditions of vehicles and further improves the overall reliability of the product.

[0021] This invention includes a proprietary assembly method that follows a sequence of steps: pre-assembly of the light source component → assembly and sealing of the heat sink → installation and alignment of the integrated optical distributor → sealing and fixing of the lampshade. The process is logically sound and offers ample operational space. During assembly, the integrated optical distributor and the light source component are precisely aligned, ensuring high optical path alignment accuracy. Simultaneously, it effectively avoids scratches and contamination of the optical working surface during assembly, resulting in a high yield rate. The entire assembly process is simple, easy to implement, and suitable for mass industrial production.

[0022] This invention uses LEDs as the light source, which, compared to traditional incandescent bulbs, has the characteristics of low power consumption and fast lighting response, reducing the overall vehicle's electrical load. At the same time, LED light sources have a longer lifespan, resulting in lower maintenance frequency and operating costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments disclosed in this invention, the accompanying drawings of the embodiments will be briefly described below. These drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention.

[0024] Figure 1 This is a perspective view of the six types of side turn signals in this invention;

[0025] Figure 2 This is an exploded view of the six types of side turn signals in this invention;

[0026] Figure 3 This is a front view of the relative arrangement structure of the light source component and the integrated optical light distributor in this invention;

[0027] Figure 4 This is a schematic diagram of the optical path of the six types of side turn signals in this invention;

[0028] Figure 5 This is a front view of the internal structure of the lampshade in this invention;

[0029] Among them, 100—lampshade, 110—striped structure, 200—housing, 300—integrated optical light distributor, 310—collimating lens, 320—optical substrate, 321—first substrate optical surface, 322—second substrate optical surface, 323—third substrate optical surface, 330—window, 331—first window optical surface, 332—second window optical surface, 400—light source assembly, 410—PCB board, 420—LED lamp beads, 500—heat sink, 510—heat sink plate, 520—heat dissipation fins. Detailed Implementation

[0030] The technical solutions (including preferred technical solutions) of the present invention will be further described in detail below with reference to the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] Category 6 side turn signals are dedicated side-mounted turn signals classified according to national standards GB4785-2019 "Installation Regulations for External Lighting and Light Signaling Devices of Motor Vehicles and Trailers" and GB5920-2024 "Light Signaling Devices and Systems for Motor Vehicles and Trailers". They are one of the core external light signaling devices for automobiles, forming the two major categories of side turn signals together with Category 5 side turn signals. They are mainly installed on the sides of medium and heavy-duty commercial vehicles to convey driving intentions to road users on the side when turning, changing lanes, or overtaking, ensuring driving safety. Applicable vehicle types and installation requirements: According to mandatory national standards, N2 and N3 category freight vehicles, as well as N1, M2, and M3 category vehicles with a length greater than 6 meters, must be equipped with Category 6 side turn signals; M1 category passenger cars and short-wheelbase N1 category light vehicles generally use Category 5 side turn signals. The national standard also stipulates that the installation height of side turn signals on vehicles must not exceed 1500mm. Due to structural limitations, medium and heavy-duty commercial vehicles cannot use turn signals integrated into the rearview mirrors. Therefore, the mainstream form of Category 6 side turn signals is an independent assembly structure, mostly arranged longitudinally on the side of the vehicle body. Core light distribution technology requirements (the key to distinguishing Category 5 side turn signals): Light distribution performance is the core technical threshold of Category 6 side turn signals, and also the main reason why its design difficulty is higher than that of Category 5 side turn signals. The national standard clearly stipulates the reference axis luminous intensity and light distribution angle indicators. Reference axis luminous intensity: On the reference axis of the luminaire (parallel to the vehicle's direction of travel), the minimum luminous intensity of Category 6 side turn signals is 50cd, far higher than the 0.6cd of Category 5 side turn signals; the maximum luminous intensity limits for both are the same: the maximum luminous intensity of a normal single lamp ≤280cd, and the maximum luminous intensity of a "D"-shaped lamp ≤140cd. Light distribution angle: Includes horizontal and vertical light distribution angles. The horizontal direction is divided into a 5°~20° high-intensity light distribution area and a 20°~60° wide-angle light distribution area; the vertical direction requires an upward 30° and a downward 15° to ensure clear visibility of the light signal at different heights and viewing angles. These stringent light intensity and angle requirements necessitate a specialized optical system design for Category 6 side turn signals. Product technology evolution: Early commercial Category 6 side turn signals generally used P21W incandescent bulbs as the light source. Due to the large bulb size and high heat generation, the overall lamp size was too large, resulting in poor styling adaptability, high power consumption, and short lifespan. With industry technology upgrades, LED light sources, with their advantages of small size, low power consumption, long lifespan, and high styling flexibility, have gradually become the mainstream light source for Category 6 side turn signals. Core function: After being illuminated, Category 6 side turn signals emit standard amber light. Relying on the optical system to control the light angle and intensity, a stable and continuous light signal is formed within the legally defined full-range viewing angle, eliminating safety hazards caused by blind spots in commercial vehicles and meeting the turning warning needs of commercial vehicles in all scenarios, including urban and suburban roads.

[0032] Example 1

[0033] like Figure 1As shown in Figure 5, this embodiment provides a Category 6 side turn signal that is suitable for longitudinal installation in commercial vehicles. The entire system uses a housing 200 as the mounting base. A radiator 500 is mounted and fixed on one side of the housing 200, and a lamp cover 100 is mounted and fixed on the other side. The housing 200, the radiator 500, and the lamp cover 100 cooperate with each other to form a sealed mounting cavity. The cavity forms an independent working space that is waterproof and dustproof.

[0034] The lamp cover 100 is injection molded from PC material specifically for automotive lights. Multiple stripe structures 110 are integrally formed on the side facing the interior of the mounting cavity, that is, the side facing the integrated optical light distributor 300. The stripe structure 110 is a continuous microstructure, which can, on the one hand, further disperse and homogenize the emitted light, thereby improving the overall light output consistency of the lamp. On the other hand, it can visually obscure the internal parts of the lamp, weaken the outline of the internal structure, and improve the overall appearance of the lamp.

[0035] The mounting cavity is divided into two mounting areas: the area near the heat sink 500 is where the light source assembly 400 is fixedly installed, and the area near the lampshade 100 is where the integrated optical light distributor 300 is fixedly installed. The integrated optical light distributor 300 is directly facing the light output direction of the light source assembly 400 to ensure coaxial transmission of the optical path.

[0036] The light source assembly 400 consists of a PCB board 410 and multiple LED beads 420. The multiple LED beads 420 are soldered and fixed on the PCB board 410 at equal intervals. The uniform layout can avoid local heat concentration during operation. The LED beads 420 serve as the light source, providing the light foundation for the entire lamp. Compared with the traditional 21-watt bulb, they have the characteristics of small size, low power consumption, and fast response speed.

[0037] The heat sink 500 is integrally formed from die-cast aluminum alloy, possessing advantages such as high thermal conductivity and high structural strength. Its main body consists of two parts: a heat sink 510 and heat dissipation fins 520. The heat sink 510 is sealed and assembled inside the housing 200, with the plane of the heat sink 510 facing the PCB board 410 tightly fitted to the back of the PCB board 410. Thermal grease is evenly applied between the two, significantly reducing contact thermal resistance and rapidly conducting the heat generated by the LED operation. Multiple raised heat dissipation fins 520 are integrally formed on the outer surface of the heat sink 510 facing away from the PCB board 410, effectively increasing the contact area between the heat sink and the outside air and enhancing the convection cooling effect. Simultaneously, after assembly, the heat sink 500 can fit tightly against the PCB board 410, ensuring effective heat dissipation. An annular rubber sealing gasket is sandwiched between the mating surfaces of the housing 200 and the heat sink 500 to achieve a sealed protection of the mating surface.

[0038] like Figure 3As shown in Figure 4, the integrated optical light distributor 300 is an integral optical component molded from PC material. It mainly consists of a collimating lens 310 and an optical substrate 320, which are an inseparable integrated structure. The number of collimating lenses 310 is the same as the number of LED beads 420. Each collimating lens 310 is directly opposite one LED bead 420. The light emitted by the LED bead 420 first enters the collimating lens 310 to complete beam collimation and preliminary refraction. The optical substrate 320 has several windows 330, each window 330 including a first window optical surface 331 and a second window optical surface 332, which are different surface structures of the window 330. In some embodiments, the first window optical surface 331 is a wavy continuous micro-curved surface (or a multi-segment aspherical microlens array) facing the lampshade side of the window 330, with an alternating concave and convex microstructure. After light is incident, it undergoes multiple refractions and scatterings through micro-surfaces with different curvatures, achieving partial dispersion and homogenization of light, while refracting the light to a preset light distribution angle. In some embodiments, the second window optical surface 332 is a highly smooth mirror-like inclined surface with a 45° inclination inside the window 330. The inclined surface is polished to meet the critical angle requirement of total internal reflection. When light is incident on this inclined surface, the light propagating along the collimating lens axis is redirected to the outside of the vehicle body through the principle of total internal reflection, achieving a nearly 90° light path redirection, providing a basic propagation direction for subsequent light output. The optical substrate 320, facing the lampshade 100, integrates three functional optical surfaces: a first substrate optical surface 321, a second substrate optical surface 322, and a third substrate optical surface 323. In some embodiments, the first substrate optical surface 321 is a specular reflection slope on the optical substrate 320 at a 45° angle to the incident light direction, with a polished surface to ensure total internal reflection. When some light rays that do not pass through the window 330 are incident on this slope, secondary total internal reflection occurs, further adjusting the light propagation direction so that it merges with the light rays emitted from the window and propagates together towards a preset light distribution angle. In some embodiments, the second substrate optical surface 322 is a large-area micro-diffusing surface (or a dense array of V-shaped microprisms) on the side of the optical substrate 320 facing the lampshade, with a uniformly distributed surface shape. It can refract and scatter the mixed light rays emitted from the window multiple times after total internal reflection, breaking up the concentrated beam and achieving uniform light processing across the entire surface, eliminating uneven light spots and breaks. In some embodiments, the third substrate optical surface 323 is a strip-shaped microlens array (or a finely frosted diffuse microstructure) corresponding to the position of the window 330, and is set on the light-emitting side of the window 330; it can perform secondary fine homogenization of the light emitted from the window, weaken the outline of a single beam of light, further improve the continuity and uniformity of the emitted light, and ensure that there are no local bright spots or dark areas after the lamp is lit.After the light is collimated, refracted, subjected to multi-level total internal reflection, layered scattering and homogenization by the integrated optical light distributor 300, it is emitted outward according to the preset angle range, accurately meeting the regulatory requirements for the 5°~20° strong light distribution area and the 20°~60° wide-angle light distribution area of ​​the six types of side turn lights.

[0039] The housing 200 and the lamp cover 100 are sealed and fixed by ultrasonic welding process, and combined with the rubber sealing gasket to form a double sealing structure, which provides all-round protection for the optical parts and electronic components inside the cavity.

[0040] Example 2

[0041] This embodiment describes the assembly method for the six types of side turn signals described in Embodiment 1. It strictly follows the structural layout design process, with a reasonable operational logic, effectively ensuring assembly accuracy and product yield. The specific assembly steps are as follows:

[0042] Take the cleaned housing 200 and place the assembled light source assembly 400 inside the housing 200, on the side close to the heat sink 500. Use the internal limiting structure of the housing to complete the pre-positioning, ensuring that the PCB board 410 is installed flat and without offset.

[0043] Apply a thin, uniform layer of thermal grease to the back of the PCB board 410 of the light source assembly 400. The coating area should be consistent with the projected area of ​​the PCB board. Control the coating thickness and prevent the thermal grease from overflowing into the optical area inside the cavity to avoid contaminating the optical components to be assembled later.

[0044] The annular rubber gasket is fully fitted onto the mating end face of the housing 200 and the radiator 500. The gasket is manually smoothed to ensure that it is laid flat around the entire circumference without stretching, twisting, or wrinkles, thus preparing for end face sealing.

[0045] The heat sink 500 is aligned with the assembly position of the housing 200 and pressed smoothly to ensure that the heat sink 510 and the PCB board 410 are tightly attached. The assembly pressure is used to compact the rubber sealing gasket, thereby achieving a seal between the end face of the housing and the heat sink, while the heat sink 500 is pressed tightly against the light source assembly 400.

[0046] Take the integrated optical light distribution body 300 and install it inside the housing 200, on the side near the lamp cover 100, and fix it by relying on the limiting structure inside the housing; during the assembly process, ensure that the collimating lens 310 of the integrated optical light distribution body 300 and the LED lamp bead 420 are aligned one by one to ensure that the optical path is coaxial, and at the same time avoid touching various optical working surfaces to prevent scratches and contamination of the optical structure.

[0047] The lampshade 100 and the housing 200 are positioned using special tooling. The ultrasonic welding equipment is then activated to complete the welding, achieving a sealed fixation between the lampshade 100 and the housing 200. After welding, the parts cool naturally, and finally the housing 200, lampshade 100, and radiator 500 together enclose a sealed installation cavity, completing the assembly of the entire lamp.

[0048] After assembly, check that all parts are secure and not loose or displaced, that there are no leaks or water seepage on the welded and sealed surfaces, that the optical structure is in the correct position, and that all assembly procedures are complete.

[0049] This invention relates to an independent Category 6 side turn signal assembly, specifically designed for use on the sides of various commercial vehicles. It employs a longitudinal (length-direction) installation method, unlike traditional rearview mirror integrated side turn signals. The entire light fixture is securely mounted to a designated installation position on the side panel of the commercial vehicle via pre-set mounting feet, clips, or bolt holes on the outer side of the housing 200mm. The overall assembly height strictly adheres to regulatory requirements, controlled within 1500mm, avoiding the issue of excessive height associated with rearview mirror integrated lights. After assembly, the light's reference axis remains parallel to the vehicle's direction of travel, with the light beam projecting horizontally outwards, fully covering the vehicle's side warning area. The compact size of the entire light allows it to be adapted to small and medium-sized commercial vehicles of different sizes and styles, seamlessly integrating with the overall vehicle appearance.

[0050] This invention employs an LED light source and integrated optical component design, significantly reducing the overall lamp size and allowing it to match the styling of small and medium-sized commercial vehicles. Simultaneously, the vertically arranged structure breaks through the limitations of traditional vertically mounted LED lamps, fully meeting the installation requirements of independent side turn signals on commercial vehicles, thus broadening the range of applicable vehicle models. The integrated optical light distributor integrates collimation, refraction, total reflection, and multi-level scattering functions, combined with secondary light uniformity achieved through the striped structure inside the lampshade. This solves the defects of fragmented light output and uneven light distribution in existing discrete optical structure lamps, resulting in continuous and uniform light after the lamp is illuminated. The entire optical system can precisely divide a 5°~20° strong light distribution zone and a 20°~60° wide-angle light distribution zone. Both the light intensity and output angle meet the Class 6 side turn signal light distribution regulations, ensuring reliable signal warning effects. Furthermore, the internal stripes of the lampshade can conceal the internal structure, enhancing the overall appearance of the vehicle. This solution features an independent aluminum alloy heat sink, coupled with thermally conductive silicone grease to quickly dissipate the heat from the LEDs. Large-area heat dissipation fins enhance convection cooling, effectively suppressing LED light decay and bulb burnout. Furthermore, the lifespan of LED light sources is significantly longer than that of traditional incandescent bulbs, greatly extending the overall lifespan of the lamps and reducing the frequency of vehicle maintenance and replacement. This invention employs a sealing structure combining rubber gaskets and ultrasonic welding, ensuring a completely sealed cavity that effectively prevents mud, water, and dust from entering during driving, protecting internal electronic components and precision optical structures. It can withstand complex and harsh outdoor driving conditions, resulting in high product operational stability. The assembly process designed in this invention has a clear logic and ample operating space. The assembly process allows for precise alignment of the light source and optical components, minimizing the risk of contamination and scratches on optical parts and resulting in a high product yield. The entire process requires no specialized complex tooling, is simple to operate, and can be directly applied to mass industrial production. Based on the low power consumption of LED light sources, the load on the vehicle's electrical system can be reduced. Combined with the characteristics of long lifespan and low failure rate, this further reduces the vehicle's later maintenance costs, demonstrating significant economic and practical value.

[0051] It should be noted that the above description of the technical solutions is exemplary, and this specification may be embodied in different forms and should not be construed as limiting it to the technical solutions set forth herein. Rather, providing these descriptions will ensure that the disclosure of this invention is thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Furthermore, the technical solutions of this invention are defined only by the scope of the claims.

[0052] When using the terms “comprising,” “having,” and “including” as described in this specification, there may be other parts, and the terms used may generally be singular or plural.

[0053] It should be noted that although the terms "first," "second," "top," "bottom," "one side," "the other side," "one end," "the other end," etc., may appear and be used in this specification to describe various different components, these components and parts should not be limited by these terms. These terms are only used to distinguish one component from another. For example, without departing from the scope of this specification, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component; top and bottom components may be interchanged in certain cases; components at one end and the other end may have the same or different properties.

[0054] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention should be considered within the protection scope of the present invention.

Claims

1. A type 6 side turn signal, comprising a housing (200), characterized in that: A heat sink (500) is fixed on one side of the housing (200), and a lampshade (100) is fixed on the other side. The housing (200), the heat sink (500), and the lampshade (100) form a sealed mounting cavity. A light source assembly (400) is fixed on the side of the mounting cavity closer to the heat sink (500), and an integrated optical light distributor (300) is fixed on the side closer to the lampshade (100). The integrated optical light distributor (300) faces the light emission direction of the light source assembly (400) and can collimate, refract, reflect, scatter, and homogenize the light entering the integrated optical light distributor (300), so that the emitted light of the six types of side turn lights meets the light distribution requirements.

2. The six types of side turn signals as described in claim 1, characterized in that: The lamp cover (100) has multiple stripe structures (110) on one side surface facing the integrated optical light distributor (300). The multiple stripe structures (110) can further disperse and homogenize the emitted light of the six types of side turn lights and weaken the internal structure of the six types of side turn lights.

3. The six types of side turn signals as described in claim 1, characterized in that: The light source assembly (400) includes a PCB board (410) and multiple LED beads (420) arranged at equal intervals and fixed on the PCB board (410).

4. The six types of side turn signals as described in claim 3, characterized in that: The heat sink (500) includes a heat sink plate (510) sealed and fixed inside one side of the housing (200). Thermal grease is provided between the heat sink plate (510) facing the PCB board (410) and the PCB board (410). Multiple heat dissipation ribs (520) are provided on the heat sink plate (510) facing away from the PCB board (410).

5. The six types of side turn signals as described in claim 3, characterized in that: The integrated optical light distribution body (300) includes a plurality of collimating lenses (310) arranged one-to-one with the LED beads (420), and an optical substrate (320) that is integral with the plurality of collimating lenses (310) and is used to refract, reflect, scatter and homogenize the light passing through the plurality of collimating lenses (310).

6. The six types of side turn signals as described in claim 5, characterized in that: The optical substrate (320) has a plurality of windows (330), the windows (330) including a first window optical surface (331) for refracting, scattering and homogenizing a portion of the light passing through the collimating lens (310), and a second window optical surface (332) for total internal reflection of another portion of the light passing through the collimating lens (310).

7. The six types of side turn signals as described in claim 6, characterized in that: The optical substrate (320) includes a first substrate optical surface (321) for total internal reflection of light passing through the collimating lens (310); a second substrate optical surface (322) for scattering and homogenizing light passing through the first substrate optical surface (321) and light passing through the second window optical surface (332); and a third substrate optical surface (323) for scattering and homogenizing light passing through the first window optical surface (331).

8. The six types of side turn signals as described in claim 7, characterized in that: The optical substrate (320) has a side surface facing the lampshade (100) including a first substrate optical surface (321), a second substrate optical surface (322), and a third substrate optical surface (323).

9. A method for assembling six types of side turn signals as described in any one of claims 1-8, characterized in that: include: The light source assembly (400) is fixed inside the housing (200) on the side near the heat sink (500); the heat sink (500) is sealed and fixed on one side of the housing (200) so that the heat sink (500) presses against the light source assembly (400); the integrated optical light distributor (300) is fixed inside the housing (200) on the side near the lampshade (100) so that the integrated optical light distributor (300) and the light output direction of the light source assembly (400) are directly opposite each other; the lampshade (100) is sealed and fixed on the other side of the housing (200); the lampshade (100), the housing (200) and the heat sink (500) together form a sealed mounting cavity.

10. The assembly method of the six types of side turn signals as described in claim 9, characterized in that: Also includes: Thermal grease is applied to the surface of the light source assembly (400) near the heat sink (500); a rubber sealing gasket is installed at the joint between the housing (200) and the heat sink (500); and the lampshade (100) and the housing (200) are sealed and fixed by ultrasonic welding.

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