Buried solar luminous and reflective spike with plastic shell

Abstract

The utility model relates to a buried solar luminous and reflective plastic shell spike, which comprises a transparent optical plastic shell, a bottom shell combined with the transparent optical plastic shell, a retroreflector, an LED (Light Emitting Diode) luminous body, a photovoltaic device comprising a photovoltaic power generation sheet, an energy storage element, a driving and control circuit and a packaging adhesive curing molding body, at least the central part of the transparent top of a transparent optical plastic shell protrudes upwards to form a protruding part higher than a buried reference surface, a photovoltaic power generation piece and an Led luminous body are arranged below the protruding part, and all electronic components form circuit connection and are packaged in the transparent optical plastic shell through a packaging glue curing forming body. The outer opening of the protruding part and the containing hole grooves with the opening directions facing forwards and backwards are internally combined with the retroreflectors, the retroreflectors and the Led luminous bodies form light reflection and light emitting matching, the light emitting and light reflecting functions are achieved within the needed angle range, the cost is low, the cost performance is high, and the requirements of various standards for the waterproof performance, the compression resistance and the impact resistance of the spike can be met.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety equipment, specifically to an underground solar-powered reflective plastic-shell road stud with luminous and reflective functions for road visibility guidance. Technical Background

[0002] Solar road studs, also known as solar raised pavement markers or solar ground lights, are mainly installed on road surfaces. They have the function of storing solar energy during the day and using solar energy to power light-emitting devices at night. They can provide visual guidance or prompts for drivers and pedestrians, and can also serve as auxiliary road lighting equipment.

[0003] Existing solar-powered luminous road studs are mainly raised studs, which have a luminous effect and can also have a reflective (retroreflective) function. However, because their main body protrudes from the road surface, especially when used in greenways, parks, squares and other places, they are prone to collisions with pedestrians, posing a safety hazard and greatly limiting their use.

[0004] Therefore, a solar-powered, luminous, in-ground road stud has been proposed. During installation, the main body below the ground reference surface is buried in the road surface, while the top surface above the reference surface is exposed and flush with or slightly higher than the road surface. It has a lateral luminous function, is less likely to collide with pedestrians, and can withstand the impact of snowplows in winter in northern regions, making it popular in the market. However, the existing structure loses its reflective function because the main body of the stud is buried underground.

[0005] Furthermore, solar-powered illuminated road studs are prone to insufficient charging and reduced illumination during rainy seasons (such as the plum rain season in southern China), or failure to light up due to damage to batteries or other electronic components. In such situations, existing solar-powered illuminated road studs become functionally ineffective. With the increasing intelligence of transportation equipment, solar-powered buried road studs require the integration of sensors or wireless communication modules, sometimes needing to operate 24 / 7. This can easily lead to insufficient power, again preventing the buried road studs from functioning properly. Therefore, the necessity of reflective functionality becomes particularly prominent.

[0006] Therefore, patent number 2023113005854 proposes a buried solar-powered reflective road stud with a metal protective shell. By incorporating a retroreflector with a pre-defined main direction (principal angle of directional reflection) and incident angle within a recessed area on its top, it achieves lateral reflective functionality, offering unique advantages. This product is suitable for various road sections, particularly highways, national roads, and provincial roads with a high volume of overloaded or heavy-duty vehicles. However, it also has the following drawbacks:

[0007] 1. Because they often use metal casings, the material and manufacturing costs are high, especially with the continuous rise in the price of cast aluminum and stainless steel, which limits their application.

[0008] 2. The metal protective protrusions on the transparent outer shell of this product structure will block its emitted light, resulting in a reduced light-emitting area and affecting its light-emitting performance.

[0009] 3. With the continuous development of transportation technology, illuminated road studs are gradually shifting towards intelligent wireless control, primarily receiving or transmitting wireless signals through wireless radio frequency modules. However, existing solar-powered illuminated underground road studs with metal protective shells suffer from wireless signal transmission and reception errors due to the metal shielding. Therefore, there is a demand for pure plastic shell type solar-powered illuminated underground road studs.

[0010] Furthermore, due to the existence of numerous overloaded vehicles or relatively few heavy-loaded vehicles on graded highways, ordinary highways, or rural roads, low-cost road stud products are needed.

[0011] In conclusion, how to manufacture low-cost and high-performance solar-powered luminous underground road studs, while ensuring that they still have reflective indication functions, are suitable for road sections with fewer overloaded vehicles, are more conducive to wireless control, and adapt to the development needs of intelligent systems, has become an urgent problem to be solved in the industry. Utility Model Content

[0012] In view of the shortcomings of existing products, the technical problem to be solved by this utility model is to provide a ground-buried solar-powered reflective plastic shell road stud with a transparent plastic shell structure (plastic molding structure, preferably injection molding structure or compression molding structure), low cost and high cost performance, with dual functions of reflection and light emission within the required angle range (able to achieve a brightening effect), and with a pressure-resistant and impact-resistant structure and a waterproof encapsulation structure.

[0013] Under these premises, this utility model innovates the product material (preferably transparent materials such as polycarbonate and PMMA), molding process and structure (especially the injection molding process and structure of transparent materials), mechanical structure, packaging structure, optical structure and optical path design of the buried solar luminous reflective road stud. It also combines the characteristics of different types of retroreflective components to design a unique molding structure and connection method. Through a large number of computer simulations and theoretical calculations, combined with mechanical model tests, the optimal design purpose is achieved. In particular, it solves the problem of matching physical structure with optical angle within limited size (mainly referring to the height of its part above the buried reference plane is limited) and limited space (mainly referring to the volume limitation). The lateral retroreflection angle can be less than 45°, making the design more flexible.

[0014] This invention uses a transparent plastic shell as the outer casing for the road studs, which can significantly reduce the material and manufacturing / assembly costs of the product, resulting in a higher cost-performance ratio.

[0015] This invention combines retroreflectors arranged according to a predetermined main direction and incident angle of retroreflected light within a recessed groove in the raised portion of the transparent top of a transparent plastic shell. Preferably, it combines microprism-type retroreflective sheets or microbead array-type retroreflective sheets within a grooved recess to create a reflective effect arranged in blocks.

[0016] Alternatively, a multi-point distributed reflective effect can be achieved by combining lens unit-type retroreflectors (preferably double-spherical cylindrical glass lenses, commonly known as cat's-eye reflectors) within multiple perforated receiving slots. By matching and compensating for the reflection angles (including the principal direction of the retroreflected light and the range angle of the retroreflected light; the principal direction of the retroreflected light is sometimes called the principal axis of reflection, corresponding to the direction of the maximum luminous intensity coefficient, and the range angle of the retroreflected light corresponds to the incident angle of the headlight), the reflective brightness of multiple retroreflectors is superimposed to improve the overall retroreflective efficiency. This can be achieved by combining retroreflectors in front-to-back or / and left-to-right combinations to enhance the overall retroreflective efficiency and angle matching.

[0017] This invention combines the reflective properties of its retroreflector with the light emission of its LED emitter, thereby achieving both light emission and reflection (with a brightening effect) within the desired angle range.

[0018] This utility model can improve product performance through the following technical means:

[0019] 1. Under the conditions permitted by the injection molding process, a strength-enhancing structure can be provided below or on the side of the location of the receiving hole and groove. This can be achieved by locally thickening the structure at the location of the receiving hole and groove, adding a support body below the location of the receiving hole and groove, or setting reinforcing ribs or reinforcing columns below or on the side of the location of the receiving hole and groove. This can improve the structural strength of the location of the receiving hole and groove, further enhance the overall structural strength, and make it more resistant to pressure and impact.

[0020] 2. Due to the different physical properties of the plastic shell material [transparent top shell is generally made of transparent materials such as polycarbonate (PC)] and the retroreflector material, it is difficult to directly use hot melt bonding between the two. This utility model can achieve the transition bonding of different materials through a hot melt medium transition layer with similar physical properties to both the plastic shell material and the retroreflector material, so as to ensure the bonding strength between the shell and the retroreflector.

[0021] 3. This utility model can achieve a certain level of reflectivity in the same direction while ensuring the structural strength of the shell by using a multi-point combination of retroreflectors.

[0022] This utility model combines the advantages of ordinary buried luminous road studs with the features of raised reflective road studs. In particular, compared with the existing metal-cased buried road studs, it does not require metal casing protection, saving material costs and manufacturing and assembly costs. Therefore, it has a very broad application prospect, can effectively reduce road traffic safety accidents and improve road traffic efficiency, and has practicality and novelty.

[0023] The specific technical solution of this utility model is: a buried solar-powered reflective plastic shell road stud, comprising a transparent optical plastic shell (1) and a bottom shell (2) connected thereto, a retroreflector (3), an LED light emitter (4), a photovoltaic device (5) containing a photovoltaic power generation cell, an energy storage element (6), a drive and control circuit (7), and an encapsulating adhesive cured molding body (8) (which may include a transparent adhesive cured molding body or an opaque adhesive cured molding body, a sealant cured molding body, a structural adhesive cured molding body, a filler adhesive cured molding body, preferably an epoxy adhesive cured molding body, an organosilicon adhesive cured molding body, or a polyurethane adhesive cured molding body).

[0024] The transparent optical plastic shell (1) is a transparent plastic molded shell with the required structural strength and left-right symmetry, consisting of a transparent top (1d) and a transparent enclosure (1b) that is integral with the transparent top (1d) and extends downwards, forming an accommodating cavity (1q) with a downward opening. The outer edge of the transparent top (1d) is the buried reference surface of the road spike (a reference surface that is basically flush with the road surface when the road spike is installed) [i.e., the height of the outer edge of the transparent top (1d) is close to the height of the buried reference surface (including being flush with the buried reference surface)]. The transparent top (1d) has at least a central portion that bulges upwards to form a raised portion (1t) higher than the buried reference surface.

[0025] The transparent optical shell (1) has an externally opening accommodating slot (3d) on the side or / and edge of the raised portion (1t) of the transparent top (1d) above the buried reference surface. The slot can be one, two or more. The accommodating slot (3d) is a groove-type accommodating slot or / and a hole-type accommodating slot. The accommodating slot (3d) is combined with a retroreflector (3) set according to the set retroreflection principal direction (the principal angle of directional reflection, corresponding to the retroreflection central axis with the highest reflection efficiency, sometimes also called the retroreflection principal optical axis) and the incident range angle.

[0026] The transparent optical plastic shell (1) and its lower bottom shell (2) with potting holes (2k) are combined through a composite structure and / or an assembly structure to form a cavity shell.

[0027] The LED light emitter (4) and photovoltaic device (5) are respectively disposed in the accommodating cavity (1q) below the transparent top (1d) of the transparent optical plastic shell (1). The LED light emitter (4) is adapted to the optical structure on the transparent optical plastic shell (1) to form a light-emitting optical structure that emits light forward and / or backward.

[0028] The LED light source (4), photovoltaic device (5), energy storage element (6), and driving and control circuit (7) are connected by a circuit, and an encapsulating adhesive curing molding body (8) is provided at the bottom of the cavity shell to encapsulate the LED light source (4), photovoltaic device (5), energy storage element (6), and driving and control circuit (7) in its cavity shell to form a buried solar light-emitting reflective plastic shell road stud with a waterproof and insulating encapsulation structure and a pressure and impact resistance structure, which has the dual functions of light emission and reflection (with a brightening effect) within the required angle range.

[0029] Furthermore, within the accommodating groove (3d), an antireflector (3) is fixed above the buried reference surface and whose retroreflected light (L3) has an elevation angle (θ3) less than 30°. This is achieved by an adhesive layer (9) (which can be a transparent adhesive layer, a semi-transparent adhesive layer, or an opaque adhesive layer; the shape and thickness can be set as needed; sometimes it can be used interchangeably with a curable encapsulating adhesive (8); preferably acrylic resin, polyurethane resin, polyurea resin, silicone resin, or photocurable resin).

[0030] The adhesive layer (9) is an adhesive layer formed by curing liquid resins including but not limited to acrylic resins, polyurethane resins, polyurea resins, silicone resins, and photocurable resins;

[0031] Alternatively, a retroreflector (3) is fixed in the accommodating slot (3d) by a hot-melt composite structure. The retroreflector is higher than the underground reference plane and the elevation angle (θ3) of the main direction of the retroreflected light (L3) is less than 30°.

[0032] Preferably, the transparent optical plastic shell (1) has groove-shaped receiving slots (3d) with outward openings and opening directions facing forward and backward on the high-low transition surface (1p) of the raised portion (1t) of the transparent top (1d). The retroreflector (3) is a microprism-type retroreflective sheet (also called a microprism-type retroreflector) with an array structure composed of multiple microprisms and a reflective coating or air layer at the bottom. The microprism-type retroreflective sheet with a reflective coating at the bottom is bonded to the groove-shaped receiving slot (3d) by an adhesive layer (9) or a hot-melt composite structure (generally an ultrasonic plastic welding structure). Or, a microprism-type retroreflective sheet with an air layer at the bottom is bonded to a groove-type receiving hole (3d) through a hot-melt composite structure; or, a microprism-type retroreflective sheet with a reflective coating at the bottom is bonded to a groove-type receiving hole (3d) through a hot-melt medium transition layer and a hot-melt composite structure with similar physical properties to the transparent optical plastic shell (1) and the retroreflector (3); or, a microprism-type retroreflective sheet with an air layer at the bottom is bonded to a groove-type receiving hole (3d) through a hot-melt medium transition layer and a hot-melt composite structure with similar physical properties to the transparent optical plastic shell (1) and the retroreflector (3).

[0033] Alternatively, the transparent top (1d) of the transparent plastic shell (1) has a groove-shaped receiving hole (3d) with an external opening and the opening direction facing forward and backward on the high-low transition surface (1p) where the front and rear end faces of the raised part (1t) are located. The retroreflector (3) is an injection-molded microbead array combination type retroreflective sheet with a reflective coating at the bottom, which is composed of multiple small lens units (also called retroreflective elements, usually small convex lenses) arranged in an array combination structure. The microbeads are sometimes called small glass lens reflective beads, and the volume of a single bead is relatively small, preferably with a diameter between 3mm and 5mm. The microbead array combination type retroreflective sheet is bonded to the groove-shaped receiving hole (3d) by an adhesive layer (9) or a hot melt composite structure (generally an ultrasonic plastic welding structure), or the microbead array combination type retroreflective sheet is bonded to the groove-shaped receiving hole (3d) by a hot melt medium transition layer and a hot melt composite structure with similar physical properties to the transparent optical plastic shell (1) and the retroreflector (3).

[0034] Alternatively, the transparent top (1d) of the transparent optical plastic shell (1) has multiple hole-type receiving slots (3d) with openings facing forward or backward on the high-low transition surface (1p) near the edge of the transparent top (1d). The retroreflector (3) is a lens unit type retroreflector with a spherical, curved, or free-surface optical lens structure, a reflective coating on its bottom, and satisfying the retroreflection conditions (preferably a double spherical cylindrical glass lens, commonly known as a cat's eye reflector, with a relatively large single volume, preferably with a diameter of 8mm). The lens unit type retroreflector is combined in the hole-type receiving groove (3d) between ~13mm. Its reflection angle or shape can be designed as needed. Its retroreflection range angle is a small angle type retroreflection range angle, a large angle type retroreflection range angle (horizontal direction), or a full angle type retroreflection range angle (360° horizontal direction). It can be cylindrical, UFO-shaped, diamond-shaped, etc., forming a retroreflection structure with a combination configuration of multiple points (front and rear positions or / and left and right positions) of retroreflectors, which has the effect of superimposing the retroreflection brightness in the same direction, and can also ensure the structural strength of the shell.

[0035] Furthermore, a photovoltaic device (5) composed of photovoltaic cells is provided below the central part or middle part of the raised part (1t) of the transparent top (1d) of the transparent optical plastic shell (1). LED light emitters (4) are respectively provided between the front and rear ends of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b), or LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a recessed light-emitting groove (4c) adapted to it and corresponding to the front and rear directions of light emission. The light-emitting groove (4c) is provided with a light-incident surface (4r) and a light-emitting surface (4m) corresponding to the front and rear directions of light emission of the LED light emitter (4). An air layer is provided above the photovoltaic cell and between the LED light emitter (4) and the inner top surface of the transparent optical plastic shell (1).

[0036] Preferably, the light-emitting body (4) and the light-emitting groove (4c) of the transparent optical shell (1) are matched in terms of the angle and thickness of the light-incident surface (4r), the light-emitting surface (4m), and the sidewalls thereon, forming a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) incident from the light-incident surface (4r) and emitted in the front-back direction through the light-emitting surface (4m) satisfies: 0°≤θ4<45° and its emission range angle (α4) satisfies: θ4≤α4 / 2.

[0037] Preferably, after the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<30°, and the angle between the main direction of the retroreflected light (L3) of the retroreflector (3) and the central principal optical axis of the emitted light (L4) of the LED light emitter (4) on the same side is less than 30°.

[0038] Preferably, the four corners of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1) are concave to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1), there is a rectangular photovoltaic cell with the front-to-back length of its photovoltaic device (5) being greater than its left-to-right width. LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and corresponds to the front-to-back light emission direction. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front-to-back light emission direction of the LED light emitter (4) is the high-low transition surface (1p) of the front and back sides of the left and right arms of the raised portion (1t).

[0039] The transparent optical plastic shell (1) has a groove-shaped receiving hole (3d) with an outward opening and facing forward on the high-low transition surface (1p) where the front end face of the raised part (1t) of the transparent top (1d) is located. The rear end face of the raised part (1t) has a groove-shaped receiving hole (3d) with an outward opening and facing backward on the high-low transition surface (1p). The retroreflector (3) is a microprism-type retroreflective sheet with a reflective coating or air layer at the bottom, composed of multiple microprisms in an array structure, or a microbead array-type retroreflective sheet with a reflective coating at the bottom, composed of multiple small lens units arranged in an array combination structure. The retroreflector (3) is bonded to the groove-shaped receiving hole (3d) by an adhesive layer (9) or a hot-melt composite structure. Inside the slot (3d), after the retroreflector (3) is combined with the slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°. The LED light emitter (4) and the light-emitting slot (4c) located on the left and right sides of the retroreflector (3) have their incident surface (4r), light-emitting surface (4m) and their sidewalls matched, forming a light-emitting optical structure in which the central principal axis elevation angle (θ4) of the emitted light (L4) incident from the incident surface (4r) and emitted forward through the light-emitting surface (4m) satisfies: 0°≤θ4<30°. The horizontal angle between the central principal axis of the emitted light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

[0040] Preferably, the four corners of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1) are concave to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1), there is a rectangular photovoltaic cell with the front-to-back length of its photovoltaic device (5) being greater than its left-to-right width. LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and corresponds to the front-to-back light emission direction. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front-to-back light emission direction of the LED light emitter (4) is the high-low transition surface (1p) of the front and back sides of the left and right arms of the raised portion (1t).

[0041] The transparent optical shell (1) has multiple (preferably 3-5) parallel, outwardly open, and rearwardly facing hole-type receiving slots (3d) on the high-low transition surface (1p) where the front end face of the raised portion (1t) of the raised portion (1t) is located. The rear end face of the raised portion (1t) has multiple parallel, outwardly open, and rearwardly facing hole-type receiving slots (3d). The retroreflector (3) is a directional lens unit type retroreflector with a spherical, curved, or free-surface optical lens structure, a reflective coating on its bottom, and satisfying the retroreflection condition. The retroreflector (3) is combined in the hole-type receiving slot (3d) through a fitting structure and an adhesive layer (9). The retroreflector (3) and After the receiving slot (3d) is combined, the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°, forming a retroreflection structure with left and right positions combined. The light source (4) and the light source slot (4c) located on the left and right sides of the retroreflector (3) have their incident surface (4r), light source surface (4m) and their side wall angles matched, forming a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) incident from the incident surface (4r) and emitted from the light source surface (4m) in the front-back direction satisfies: 0°≤θ4<30°. Moreover, the horizontal angle between the central principal optical axis of the emitted light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

[0042] Preferably, the four corners of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1) are concave to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1), there is a rectangular photovoltaic cell with the front-to-back length of its photovoltaic device (5) being greater than its left-to-right width. LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and corresponds to the front-to-back light emission direction. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front-to-back light emission direction of the LED light emitter (4) is the high-low transition surface (1p) of the front and back sides of the left and right arms of the raised portion (1t).

[0043] The transparent optical plastic shell (1) has two parallel, outwardly open, forward-facing hole-type receiving grooves (3d) on the middle part of the high-low transition surface (1p) where the front end face of the raised portion (1t) of the transparent top (1d) is located. The raised portion (1t) also has two parallel, outwardly open, rearward-facing hole-type receiving grooves (3d) on the middle part of the high-low transition surface (1p) where the rear end face of the raised portion (1t) is located. The raised portion (1t) has two parallel, outwardly open, rearward-facing hole-type receiving grooves (3d) on the left and right sides. Each of the two arms has a hole-type receiving groove (3d) with an external opening facing forward on the front high-low transition surface (1p). Each of the two arms of the raised part (1t) has a hole-type receiving groove (3d) with an external opening facing backward on the rear high-low transition surface (1p). The reflector (3) is a directional lens unit type retroreflector with a spherical, curved or free surface optical lens structure, a reflective coating on its bottom, and satisfying the retroreflection condition. The reflector (3) is combined with the interlocking structure and the adhesive layer (9) in the hole-type receiving slot (3d). After the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°, forming a retroreflection structure with left and right positions combined. The light-emitting slot between the LED light-emitting body (4) and the retroreflector (3) located on the same front and rear sides, the end face, and the left and right arm retroreflectors (3) is ( The incident surface (4r), the exit surface (4m), and the sidewalls of 4c) are matched in terms of angle and thickness, forming a light-emitting optical structure in which the central principal axis elevation angle (θ4) of the outgoing light (L4) incident from the incident surface (4r) and exiting through the exit surface (4m) in the front-back direction satisfies: 0°≤θ4<30°, and the horizontal angle between the central principal axis of the outgoing light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

[0044] Preferably, the four corners of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1) are concave to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1), there is a rectangular photovoltaic cell with a left and right width greater than the front and back length of its photovoltaic device (5). LED light emitters (4) are respectively provided between the front and back sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and corresponds to the front and back directions of light emission. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front and back directions of light emission of the LED light emitter (4) is the high and low transition surface (1p) of the front and back end faces of the raised portion (1t).

[0045] The transparent optical shell (1) has a hole-type receiving groove (3d) with an external opening facing forward on the left and right sides of the high-low transition surface (1p) where the front end face of the raised part (1t) of the transparent top (1d) is located, and a hole-type receiving groove (3d) with an external opening facing forward on the front side of the high-low transition surface (1p) where the rear end face of the raised part (1t) is located, and a hole-type receiving groove (3d) with an external opening facing backward on the rear side of the high-low transition surface (1p) where the rear end face of the raised part (1t) is located. The retroreflector (3) is a directional lens unit type retroreflector with a spherical, curved, or free surface optical lens structure, a reflective coating on its bottom, and a retroreflection condition. The retroreflector (3) is combined in the hole-type receiving groove (3d) by a fitting structure and an adhesive layer (9). After the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°, forming a retroreflection structure with front-rear and left-right combination respectively. The light-incident surface (4r), light-outcident surface (4m) and the side wall of the light-out slot (4c) between the LED light emitter (4) and the retroreflectors (3) on the left and right sides of the front end face are matched to form a light-emitting optical structure in which the elevation angle (θ4) of the central principal optical axis of the emitted light (L4) incident from the light-incident surface (4r) and emitted from the light-outcident surface (4m) in the front-rear direction satisfies: 0°≤θ4<30°. Moreover, the horizontal angle between the central principal optical axis of the emitted light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

[0046] Preferably, the opening orientation angle (α) of the receiving groove (3d) of the raised portion (1t) of the transparent top (1d) of the transparent optical shell (1) [generally corresponding to the draft direction, axial direction, or normal to the bottom surface of the receiving groove (3d)] is between 3° and 60°, wherein the opening orientation angle (α) of the hole-type receiving groove (3d) is between 3° and 25°, and the opening orientation angle (α) of the groove-type receiving groove (3d) is between 35° and 60°.

[0047] Alternatively, after the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the principal direction of the retroreflected light (L3) is between 5° and 30°.

[0048] Alternatively, the retroreflector (3) may have a retroreflection angle on one side (i.e., the angle θ1 between the incident light and the retroreflection central axis; incident light with an incident angle smaller than the retroreflection angle on one side can achieve effective retroreflection; and incident light with an incident angle equal to the retroreflection angle on one side can achieve a reflection efficiency equivalent to 25% to 50% of the incident light's reflection efficiency along the retroreflection central axis) between 10° and 30°.

[0049] Alternatively, after the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) is less than or equal to the single-sided range angle of the retroreflected light.

[0050] Alternatively, the retroreflector (3) is a retroreflector whose main direction of retroreflected light (L3) after being combined with the receiving slot (3d) of the raised portion (1t) has a deflection angle between its normal angle and its central axis and between 15° and 35°.

[0051] Alternatively, the retroreflector (3) may be a retroreflector with an incident angle range greater than 45° and / or an observation angle range greater than 45°.

[0052] Alternatively, the retroreflector (3) is a lens unit type retroreflector with a spherical optical lens structure and a reflective coating on its bottom. The diameter of the retroreflective lens unit is between 8mm and 13mm, and its retroreflective light range angle is a small-angle type, a large-angle type, or a full-angle type.

[0053] Alternatively, the retroreflector (3) is a microprism-type retroreflective sheet with a three-sided right-angle prism structure array at its bottom that satisfies the retroreflection condition.

[0054] Alternatively, the retroreflector (3) is an injection-molded microbead array retroreflective sheet composed of multiple small glass lens reflective beads with a reflective coating on the bottom arranged in an array combination structure, with the diameter of the small glass lens reflective beads being between 3mm and 5mm.

[0055] Furthermore, the location of the accommodating slot (3d) is provided with a strength-reinforcing structure.

[0056] Alternatively, the location of the accommodating slot (3d) may be provided with a locally thickened structure.

[0057] Alternatively, a support body may be added below the location of the aforementioned receiving slot (3d).

[0058] Alternatively, a reinforcing rib or reinforcing column may be provided below or to the side of the location of the accommodating groove (3d).

[0059] Furthermore, the light-emitting slot (4c) is a light-emitting slot with an optical structure including but not limited to light refraction structure, light reflection structure, light focusing structure, light angle deflection structure, and light upward shift structure, which is adapted to the LED light-emitting body (4) and facilitates the assembly of the LED light-emitting body (4) at the required angle. Alternatively, the light-emitting slot (4c) may have a spherical light-concentrating lens on its light-incident surface (4r) and / or light-emitting surface (4m).

[0060] Alternatively, the inner top surface of the light-emitting groove (4c) may be provided with a downwardly protruding rib or a downwardly hanging partition.

[0061] Furthermore, the photovoltaic power generation cell and the inner wall of the adjacent transparent enclosure (1b) are provided with upward-emitting LED light source (4) at the edge or / and corner positions to serve as a near light source and achieve the effect of edge and corner light distribution.

[0062] Furthermore, the composite cavity shell is a composite cavity shell formed by combining a transparent optical plastic shell (1) and a bottom shell (2) through a hot-melt composite structure and a curing encapsulant molded body (8).

[0063] Alternatively, the cavity shell of the assembly structure is a cavity shell of the assembly structure formed by combining a transparent optical plastic shell (1) with a fixing hole (1k) and a bottom shell (2) through the fixing hole (1k), fasteners (10), and a curing molded body (8) of encapsulating adhesive.

[0064] Alternatively, the aforementioned rail spike composite structure cavity shell is a transparent optical plastic shell (1) with a fixing hole (1k) and a bottom shell (2) combined by a hot melt composite structure and a curing molded body (8), and further combined by the aforementioned fixing hole (1k), fastener (10) and curing molded body (8) to form a rail spike composite structure cavity shell with a fastener-reinforced structure.

[0065] Alternatively, the outer perimeter of the transparent enclosure (1b) of the transparent optical plastic shell (1) is larger than the outer perimeter of the bottom shell (2), and the bottom shell (2) is fitted into the downward opening of the accommodating cavity (1q) of the transparent optical plastic shell (1) to form an embedded composite cavity shell or an embedded assembly assembly cavity shell.

[0066] Alternatively, the outer perimeter of the transparent enclosure (1b) of the transparent optical plastic shell (1) is smaller than the outer perimeter of the bottom shell (2), and the bottom shell (2) is fitted into the bottom of the transparent enclosure (1b) of the transparent optical plastic shell (1) and covers the outer perimeter of the bottom of the transparent enclosure (1b) to form a cavity shell with a shell-type composite structure or a cavity shell with a shell-type assembly structure.

[0067] Furthermore, a protective coating layer (12) is provided on the outer wall of the transparent enclosure (1b) of the transparent optical plastic shell (1), or / and a protective coating layer (12) is provided on the bottom of the transparent enclosure (1b) or the bottom of the bottom shell (2) of the transparent optical plastic shell (1), such as an anti-reflective coating layer with scattering and reflection function, or a color-developing coating layer with a specific color, or a sand-finish coating layer with a rough surface, or a waterproof coating layer with anti-seepage and anti-leakage function.

[0068] Furthermore, the buried solar-powered reflective plastic-shell road stud also includes a protective outer shell (11), which is a soft protective shell with a cushioning function. For example, it can achieve shock absorption by nesting a flexible protective shell with tolerance fit, or the protective outer shell (11) can be a hard protective shell with structural reinforcement function.

[0069] The cavity shell of the composite structure or the cavity shell of the assembled structure is embedded in the protective shell (11) to form a ground-buried solar-emitting reflective plastic shell road stud with a protective shell (11).

[0070] Preferably, the height of the transparent top (1d) of the transparent optical plastic shell (1) is between 8mm and 12mm.

[0071] Alternatively, the overall height of the transparent optical plastic shell (1) is between 40mm and 80mm.

[0072] Alternatively, the outer dimensions of the transparent optical plastic shell (1) are between 120mm and 180mm.

[0073] Alternatively, the edge of the raised portion (1t) of the transparent top (1d) of the transparent optical plastic shell (1) transitions from high to low towards the outer edge of the transparent optical plastic shell (1) via a buffer surface, wherein the buffer surface is a slope, a folded surface, or an arc surface.

[0074] Alternatively, the transparent top (1d) of the transparent optical plastic shell (1) may have a notch (allowing light to pass through), a groove (allowing water to overflow), a hole (such as a fixing screw hole), or an anti-slip structure (generally an anti-slip texture or anti-slip bumps) on its raised portion (1t).

[0075] Alternatively, the top edge of the transparent optical plastic shell (1) may also be provided with symmetrically arranged buried height positioning plates (1c), which can serve as a limit during road surface installation or prevent sinking after road surface installation.

[0076] Alternatively, the transparent optical plastic shell (1) may be provided with structural reinforcement auxiliary structures (e.g., concave-convex structures) or assembly auxiliary structures (e.g., assembly positioning structures or assembly limiting structures used during product assembly).

[0077] Alternatively, the outer side wall of the transparent optical plastic shell (1) may be provided with an outwardly protruding rib (1j) or an outwardly protruding column, or the inner side wall of the transparent optical plastic shell (1) may be provided with an inwardly recessed groove or an inwardly protruding column.

[0078] Alternatively, the bottom shell (2) may have a structural reinforcement auxiliary structure (e.g., a reinforcing rib or a concave-convex structure), an assembly auxiliary structure, or an installation auxiliary structure (e.g., a height positioning structure or a direction positioning structure for road studs during road surface installation).

[0079] Alternatively, the bottom of the bottom shell (2) may be provided with raised ribs.

[0080] Furthermore, a support layer or circuit board partition layer is provided between the air layer and the encapsulating adhesive cured molding body (8).

[0081] Preferably, the photovoltaic cell of the photovoltaic device (5) is a rectangular, square, or I-shaped photovoltaic cell.

[0082] Furthermore, the encapsulant cured molded body (8) is an epoxy resin cured molded body in liquid or molten state, or a silicone resin cured molded body, or a polyurethane resin cured molded body in liquid or molten state, or a combination encapsulant cured molded body that is cured by pouring or potting in liquid or molten state in stages, or a combination encapsulant cured molded body that is cured by pouring in liquid or molten state in layers, or a combination encapsulant cured molded body that is cured by pouring in liquid or molten state in layers, or a combination encapsulant cured molded body that is cured by pouring in liquid or molten state, or a combination of epoxy resin, silicone resin, or polyurethane resin.

[0083] Alternatively, the encapsulating adhesive cured molded body (8) is a cavity shell with a composite structure or a cavity shell with an assembled structure. After the cavity shell is inverted, the encapsulating adhesive is poured into the bottom of the bottom shell (2) in liquid form and then cured to form an encapsulating adhesive cured molded body.

[0084] Alternatively, the encapsulant curing molded body (8) is an encapsulant curing molded body formed by two or two layers of encapsulant potting and curing, or an encapsulant curing molded body formed by multiple or multiple layers of encapsulant potting and curing.

[0085] Furthermore, a long afterglow luminescent body is provided within the accommodating slot (3d) or fixing hole (1k).

[0086] Alternatively, a long afterglow luminescent body may be provided on the transparent optical plastic shell (1) or below the transparent top of the transparent optical plastic shell (1).

[0087] The long-afterglow luminescent body is a solidified molded body of long-afterglow luminescent powder and liquid transparent medium, thereby forming a triple luminescent (reflection can be regarded as passive luminescence) embedded solar luminescent reflective road stud that has both reflective and LED luminescent functions, as well as long-afterglow luminescent function (night light type, suitable for night or indoor lightless environment).

[0088] Alternatively, a fluorescent light emitter may be provided within the aforementioned accommodating slot (3d) or fixing hole (1k).

[0089] Alternatively, a fluorescent light emitter may be provided on the transparent optical plastic shell (1) or below the transparent top of the transparent optical plastic shell (1).

[0090] The fluorescent light source is a solidified molded body of fluorescent light powder and liquid transparent medium, thereby forming a triple light-emitting embedded solar-powered reflective road stud that has both reflective and LED light-emitting functions, as well as fluorescent light-emitting function (sunlight type, suitable for outdoor use during the day) (reflective light can be regarded as passive light emission).

[0091] Furthermore, the driving and control circuit (7) is a driving and control circuit that controls and drives the LED light-emitting body (4) to emit light constantly, or to emit light with a certain period T and duty cycle D, or to emit light alternately in two or more groups, or to emit light in a certain timing sequence.

[0092] Alternatively, the driving and control circuit (7) is a single-chip microcomputer control circuit, and the buried solar-powered reflective plastic shell road stud is a controlled buried solar-powered reflective plastic shell road stud whose LED light source (4) is controlled by the single-chip microcomputer to emit light according to the light emission mode corresponding to the preset program of the single-chip microcomputer.

[0093] Alternatively, the drive and control circuit (7) may also be connected to a wireless device. The buried solar-powered reflective plastic shell road stud is a wirelessly controlled buried solar-powered reflective plastic shell road stud with wireless receiving or wireless transmitting and receiving functions and whose LED light emitter (4) is controlled to emit light by the received wireless signal. Attached Figure Description

[0094] In the diagram, the single-arrow dashed line represents the direction of LED light emission, the double-arrow dashed line represents the direction of retroreflected light, and the dotted line without arrows represents the underground reference line.

[0095] Figure 1 This is a schematic diagram of the cross-sectional view of the rail spike at the location of the retroreflector, as well as a schematic diagram of its optical structure principle and optical path principle.

[0096] Figure 2 This is a schematic diagram of the cross-sectional view of the road spike passing through the location of the LED light source, as well as a schematic diagram of its optical structure principle and optical path principle.

[0097] Figure 3 This is a schematic diagram of the structure of the track spike at the location of the retroreflector (A1-A1 section), its optical structure, and its optical path, as shown in Embodiment 1 of this utility model.

[0098] Figure 4 This is a schematic diagram of the structure of the road stud at the location of the LED light source, along with its optical structure and light path, representing a first embodiment of this utility model.

[0099] Figure 5 This is a top view and an optical path diagram of the rail spike according to Embodiment 1 of this utility model.

[0100] Figure 6 This is a bottom-view structural diagram and an optical path diagram of a rail spike with a long afterglow luminescent body according to Embodiment 1 of this utility model.

[0101] Figure 7 This is a bottom view schematic diagram of the track spike structure according to Embodiment 1 of this utility model.

[0102] Figure 8 This is a schematic diagram of the flipped three-dimensional structure of the transparent optical plastic shell according to Embodiment 1 of this utility model.

[0103] Figure 9 This is a schematic diagram of the explosion of the rail spike and its assembly structure according to Embodiment 1 of this utility model.

[0104] Figure 10 This is a schematic diagram of the structure of the track spike B1-B1 at the location of the retroreflector, as well as its optical structure and light path, according to Embodiment 2 of this utility model.

[0105] Figure 11 This is a schematic diagram of the structure of the road stud along the B2-B2 section passing through the location of the LED light source, as well as its optical structure and optical path, according to Embodiment 2 of this utility model.

[0106] Figure 12This is a top view and an optical path diagram of the road spike according to Embodiment 2 of this utility model.

[0107] Figure 13 This is a schematic diagram of the flipped three-dimensional structure of the transparent optical plastic shell according to Embodiment 2 of this utility model.

[0108] Figure 14 This is a schematic diagram of the spike explosion and its assembly structure in Embodiment 2 of this utility model.

[0109] Figure 15 This is a schematic diagram of the cross-sectional view of the track spike C1-C1 at the location of the retroreflector, as well as its optical structure and light path, according to Embodiment 3 of this utility model.

[0110] Figure 16 This is a schematic diagram of the structure of the road stud along the C2-C2 section passing through the location of the LED light source, as well as its optical structure and optical path, according to Embodiment 3 of this utility model.

[0111] Figure 17 This is a top view and an optical path diagram of the road stud in Embodiment 3 of this utility model.

[0112] Figure 18 This is a top view and an optical path diagram of the road stud in Embodiment 3 of this utility model.

[0113] Figure 19 This is a schematic diagram of the flipped three-dimensional structure of the transparent optical plastic shell according to Embodiment 3 of this utility model.

[0114] Figure 20 This is a schematic diagram of the spike explosion and its assembly structure in Embodiment 3 of this utility model.

[0115] Figure 21 This is a top view and an optical path diagram of the road stud in Embodiment 3 of this utility model.

[0116] Figure 22 This is a schematic diagram of the structure of the track spike (D1-D1 section) passing through the location of the retroreflector in Embodiment 4 of this utility model, as well as its optical structure and light path.

[0117] Figure 23 This is a schematic diagram of the structure of the road stud through the LED light source location (D2-D2 section), its optical structure, and its optical path in Embodiment 4 of this utility model.

[0118] Figure 24 This is a top view and an optical path diagram of the rail spike in Embodiment 4 of this utility model.

[0119] Figure 25This is a schematic diagram of the flipped three-dimensional structure of the transparent optical plastic shell according to Embodiment 4 of this utility model.

[0120] Figure 26 This is a schematic diagram of the spike explosion and its assembly structure in Embodiment 4 of this utility model.

[0121] Figure 27 This is a schematic diagram of the cross-sectional view of the track spike E1-E1 at the location of the retroreflector in Embodiment 5 of this utility model, along with its optical structure and light path.

[0122] Figure 28 This is a schematic diagram of the E2-E2 cross-sectional view of the road stud at the location of the LED light emitter, as well as its optical structure and optical path, according to Embodiment 5 of this utility model.

[0123] Figure 29 This is a top view and an optical path diagram of the rail spike in Embodiment 5 of this utility model.

[0124] Figure 30 This is a schematic diagram of the flipped three-dimensional structure of the transparent optical plastic shell according to Embodiment 5 of this utility model.

[0125] Figure 31 This is a schematic diagram of the explosion of the rail spike and its assembly structure in Embodiment 5 of this utility model. Detailed Implementation

[0126] Embodiments of this utility model are described in conjunction with the accompanying drawings.

[0127] Example 1

[0128] A buried solar-powered reflective plastic-shell road stud includes a transparent top shell (110) and a bottom shell (120) attached thereto, a retroreflector (130), a high-beam LED emitter (140-1), a light-distributing and brightening LED emitter (140-2), a photovoltaic device (150), an energy storage element (160), a drive and control circuit (170), a cured encapsulant body (180), and an adhesive layer (190), such as Figure 3-9 As shown.

[0129] The transparent optical plastic shell (110) is a transparent PC injection-molded shell with the required structural strength, having a downward-opening accommodating cavity (110q) formed by its transparent top (110d) and a transparent wall (110b) integrally connected to it and extending downward. The outer edge of the transparent top (110d) is circular, and the surface containing the outer edge is the underground reference surface of the road spike. The central part of the transparent top (110d) rises upward to form a raised portion (110t) that is higher than the underground reference surface and resembles a wide cross shape. The top surface of the raised portion (110t) of the transparent top (110d) of the transparent optical plastic shell (110) is a pressure-bearing surface with anti-slip protrusions.

[0130] Below the middle part of the raised portion (110t) of the transparent top (110d) of the transparent optical shell (110), there is a rectangular photovoltaic cell with a left-right width greater than its front-back length. The photovoltaic cell is located on the left and right sides of the transparent inner support body between the front and back sides and the inner wall of the adjacent transparent enclosure (110b). Two Lamp-encapsulated straw hat-shaped F5-F8 LED beads with focusing lenses, which are obliquely tilted [the assembly tilt angle of the central axis is between 5° and 15°], are fixed to the lamp plate by slots and adhesive to serve as the high beam LED light source (140-1). The inner top wall of the transparent optical shell (110) above the high beam LED light source (140-1) is respectively equipped with matching light-emitting elements corresponding to the front and back directions. The main light-emitting groove (140c-1) is concave in the upper part. The main light-emitting groove (140c-1) is a light-emitting groove with a vertical cross-section similar to a trapezoidal arch. The light-emitting surface of the main light-emitting groove (140c-1) corresponding to the light emitted in the front-back direction of the far-beam LED light emitter (140-1) corresponds to the left and right sides of the high-low transition surface (110p) where the front and rear end faces of the raised part (110t) are located. The light-incident surface, light-emitting surface and the angle and thickness of the side wall of the main light-emitting groove (140c-1) of the far-beam LED light emitter (140-1) and the transparent optical plastic shell (110) are matched to form a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) that is incident on the light-incident surface and emitted in the front-back direction through the light-emitting surface satisfies: 0°≤θ4<30°.

[0131] Two SMD-encapsulated, upward-emitting 2835 surface-mount LED chips, fixed to the front and rear ends of the lamp board via slots and adhesive below the transparent inner support of the middle part of the left and right high beam LED emitters (140-1), serve as the light distribution and brightness enhancement LED emitters (140-2). The transparent optical plastic shell (110) above the light distribution and brightness enhancement LED emitters (140-2) has a vertically shaped inverted U-shaped light distribution and emission groove (140c-2) on its inner top wall. The light-emitting surface of the slot (140c-2) can be equipped with a light-diffusing grid that facilitates the large emission angle of the LED light-emitting body (140-2) for light distribution and brightness enhancement. The LED light-emitting body (140-2) emits light after being matched with the optical structure on the light distribution and light-emitting slot (140c-2), and forms an LED light distribution optical structure with the high-beam LED light-emitting body (140-1) that includes, but is not limited to, matching in terms of emission brightness, emission angle, and emission color.

[0132] The transparent optical plastic shell (110) has two parallel, outwardly open, forward-facing hole-type receiving grooves (130d) on the middle part of the transition surface (110p) where the front end face of the raised portion (110t) of the transparent top (110d) is located. The raised portion (110t) also has two parallel, outwardly open, rearward-facing hole-type receiving grooves (130d) on the middle part of the transition surface (110p) where the rear end face of the raised portion (110t) is located. On the front high-low transition surfaces (110p) of the left and right arms of the raised portion (110t), there is a hole-type receiving groove (130d) with an external opening facing forward. On the rear high-low transition surfaces (110p) of the left and right arms of the raised portion (110t), there is a hole-type receiving groove (130d) with an external opening facing backward. The hole-type receiving groove (130d) is bonded with a ball-shaped material through an interlocking structure and an adhesive layer (190) (such as a cured molding layer of epoxy structural adhesive or polyurethane structural adhesive). A spherical cylindrical glass lens unit (similar to a cat's eye) with a reflective coating on its bottom and satisfying retroreflection conditions, consisting of an optical lens structure with a flat, curved, or free surface, serves as a retroreflector (130). The retroreflection angle of the retroreflector (130) on one side is between 8° and 25°. After the retroreflector (130) is combined with the receiving slot (130d), the elevation angle (θ3) of the principal direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°. Thus, the four forward-facing double... The spherical cylindrical glass lens units are arranged in two rows at the front and two rows at the back. The four double spherical cylindrical glass lens units facing backward are also arranged in two rows at the front and two rows at the back. The brightness superposition effect of the retroreflectors at multiple points can improve the retroreflection efficiency and ensure the structural strength of the shell. Moreover, the horizontal angle between the central principal optical axis of the emitted light (L4) of the LED light source (140) and the principal direction of the retroreflected light (L3) of the retroreflector (130) on the same side (front or rear) is less than 25°.

[0133] The transparent top (110d) of the transparent optical shell (110) has a sloping transition on both sides from the inside out and from high to low to its outer edge. A receiving groove can be provided on the sloping surface, and a mixture of long-afterglow luminescent powder and liquid transparent medium is poured into the receiving groove, then leveled and solidified to form a long-afterglow luminescent body (1130). Figure 7 As shown, the upper edge of the transparent top shell (110) is provided with four laterally expanding buried height positioning plates (110c) arranged at certain intervals. These plates can serve as a limit during road surface installation or prevent sinking after road surface installation.

[0134] The transparent optical plastic shell (110) has vertically protruding ribs (110j) spaced at intervals on the outer side wall of the transparent enclosure (110b). This can prevent the road spikes from rotating after being buried in the ground, and also improve the structural strength and installation stability of the shell.

[0135] The transparent optical plastic shell (110) has a recessed ring-shaped fitting structure at the bottom inner circumference of the transparent enclosure (110b). The ring-shaped fitting structure is provided with (multiple) ring-shaped hot-melt ribs that are adapted to its shape.

[0136] A transparent inner support body adapted to the internal cavity structure of the transparent optical plastic shell (110) is fixed in the accommodating cavity (110q) by a stepped positioning structure and adhesive. An air layer is formed between the top of the transparent inner support body and the inner top wall of the transparent optical plastic shell (110). This creates air layers between the upper part of the high-beam LED emitter (140-1) and the inner top wall of the transparent optical plastic shell (110), and between the upper part of the photovoltaic cell and the inner top wall of the transparent optical plastic shell (110). The air layer not only participates in the optical structure of the LED emitter but also provides redundant space for the shell deformation of the transparent optical plastic shell (110) caused by vehicle crushing or impact, making it less likely for photovoltaic devices and other electronic components to be damaged.

[0137] The aforementioned high-beam LED emitter (140-1), light-distribution and brightness-enhancing LED emitter (140-2), photovoltaic device (150), energy storage element (160), and driving and control circuit (170) are connected by circuitry. The energy storage element (160) and driving and control circuit (170) are respectively embedded below the inner support body, and then a small amount of adhesive is used to fix the above components inside the transparent optical plastic shell (110).

[0138] The bottom shell (120) is a bottom-cover type injection-molded bottom shell with a glue-filling hole (120k) and outwardly protruding spoke-shaped ribs (120j) at the bottom (which can make the bottom of the composite shell more firmly bonded to the mounting glue and prevent it from rotating). The edge of the bottom shell (120) has an upwardly protruding ring-shaped fitting structure, which has a welding groove corresponding to the hot-melt ribs at the bottom of the transparent enclosure (110b). The bottom shell (120) fits into the bottom inner enclosure of the transparent enclosure (110b) through the ring-shaped fitting structure, and forms a composite shell by hot-melt bonding with the transparent optical plastic shell (110) through the hot-melt ribs and welding grooves.

[0139] The encapsulating adhesive is poured into the potting holes (120k), leveled, and cured to form a cured encapsulating adhesive molded body (180). First, a polyurethane-based encapsulating adhesive is poured, leveled, and cured to form a soft adhesive layer of a certain thickness. Then, an epoxy-based encapsulating adhesive is poured, leveled, and cured to form a hard adhesive layer of a certain thickness. The soft adhesive layer has a cushioning effect and can withstand a certain degree of deformation, making the aforementioned electronic components less susceptible to damage from casing deformation caused by vehicle crushing or impact.

[0140] The outer surface and bottom surface of the composite shell may be coated with a protective layer (1120), such as an anti-reflective coating layer with scattering and reflection function, a sandblasted coating layer with a rough surface, or a color-developing coating layer with a specific color, etc.

[0141] Among them, the control and drive circuit (170) can control the light emission mode of the high beam LED light emitter (140-1) and the light distribution and brightness enhancement LED light emitter (140-2) respectively, realize a variety of control and light emission effects such as dual-group dual control, multi-group multi-control, and dual-color or multi-color switching of light emission color. It can also be connected to wireless devices to realize wireless controlled light emission function and intelligent network control function, forming an intelligent light-emitting road stud. It can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians through the switching of light emission mode.

[0142] The ground-mounted solar-powered reflective plastic-shell road stud of this invention can be directly buried in the road surface for use, or it can be assembled with a protective bottom shell (either a hard shell or a flexible shell can be selected to provide protection for the overall structure) to form a road stud structure with a protective bottom shell before being buried in the road surface for use.

[0143] This utility model of an underground solar-powered reflective plastic-shell road stud boasts low manufacturing cost and high cost-effectiveness. While ensuring certain waterproof, pressure-resistant, and impact-resistant properties, it features both bidirectional LED illumination with small-angle upward-facing and backward-facing LED emitters for high-beam illumination, and wide-angle upward-facing LED emitters for enhanced illumination. Its edge LED light source group can compensate for the brightness and angle of the high-beam LED emitter, enhancing its brightness. This allows for a larger luminous area for close-range observation, benefiting non-motorized vehicle drivers and pedestrians, and a longer viewing distance for long-range illumination, benefiting motorized vehicle drivers. It adapts to the increasing trend of mixed-traffic roads and can also provide bidirectional reflective guidance for drivers and pedestrians by reflecting vehicle headlights through retroreflectors. Especially useful when electronic components are damaged or during periods of low traffic, relying solely on reflective guidance is crucial. Suitable for highways, ordinary roads, and rural roads with fewer overloaded or heavy-load vehicles, it better meets the needs of intelligent development.

[0144] Example 2

[0145] A buried solar-powered reflective plastic-shell road stud includes a transparent top shell (210) and a bottom shell (220) attached thereto, a retroreflector (230), a high-beam LED emitter (240-1), a light-distributing and brightening LED emitter (240-2), a photovoltaic device (250), an energy storage element (260), a drive and control circuit (270), a cured encapsulant body (280), and an adhesive layer (290), such as Figure 10-14 As shown.

[0146] The transparent optical plastic shell (210) is a transparent PC injection-molded shell with the required structural strength, having a downward-opening accommodating cavity (210q) formed by its transparent top (210d) and a transparent wall (210b) integrally connected to it and extending downward. The outer edge of the transparent top (210d) is circular, and the surface containing the outer edge is the ground reference surface for the road spike. The central part of the transparent top (210d) rises upward to form a raised portion (210t) that is higher than the ground reference surface and resembles a wide cross shape. The top surface of the raised portion (210t) of the transparent top (210d) of the transparent optical plastic shell (210) is a pressure-bearing surface with anti-slip protrusions.

[0147] Below the middle part of the raised portion (210t) of the transparent top (210d) of the transparent optical shell (210), there is a rectangular photovoltaic cell with a front-to-back length greater than its left-to-right width for its photovoltaic device (250). The middle part of the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (210b) is fixed to the lamp plate by slots and adhesive. Two horizontally arranged (two facing forward and two facing backward, with the central axis mounting angle around 0°) straw hat-shaped F5-F8 lamp beads with focusing lenses are encapsulated and serve as the high beam LED light source (240-1). An air layer is left between the lamp plate and the inner top wall of the transparent optical shell (210) [the air layer participates in the optical structure for the LED light source emission]. The inner top wall of the transparent optical shell (210) above the high beam LED light source (240-1) is respectively equipped with matching and respectively The main light-emitting groove (240c-1) is concave inward and upward, emitting light in both front and rear directions. The main light-emitting groove (240c-1) has a vertical cross-section resembling a trapezoidal arch. A hanging strip-shaped divider, similar to a dividing rib, is provided inside the main light-emitting groove (240c-1) to separate sections and strengthen the structure. Raised portions on the main light-emitting groove (240c-1) correspond to the light-emitting surfaces of the high-beam LED emitter (240-1) in the front and rear directions. (210t) The high-low transition surfaces (210p) on the front and rear sides of the left and right arms, the light-emitting LED light source (240-1) and the main light-emitting groove (240c-1) of the transparent optical shell (210) are matched in terms of the angle and thickness of the light-incident surface, the light-emitting surface and the side wall where they are located, forming a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) that is incident from the light-incident surface and then emitted in the front-rear direction through the light-emitting surface satisfies: 0°≤θ4<26°.

[0148] The center of the light panel is also soldered with an SMD-packaged, upward-emitting 2835 surface-mount LED chip, which serves as a light distribution and brightness enhancement LED (240-2). The light distribution and brightness enhancement LED (240-2) and the high beam LED (240-1) form an LED light distribution optical structure that includes, but is not limited to, matching in terms of luminous brightness, luminous angle, and luminous color.

[0149] The transparent top (210d) of the transparent optical shell (210) has four (preferably three to five) parallel, outwardly open, and forward- and backward-facing perforated receiving slots (230d) on the high-low transition surface (210p) where the front end face of the raised portion (210t) of the raised portion (210t) is located. The rear end face of the raised portion (210t) has four parallel, outwardly open, and backward-facing perforated receiving slots (230d). Within the perforated receiving slots (230d), a spherical cylindrical glass lens unit (similar to a cat's eye) with a spherical, curved, or free-faced optical lens structure, a reflective coating on its bottom, and satisfying retroreflection conditions is bonded to the perforated receiving slots (230d) through an interlocking structure and an adhesive layer (290) (such as a cured molding layer of epoxy structural adhesive or polyurethane structural adhesive). The retroreflector (230) acts as a retroreflector. The retroreflection angle of the retroreflected light on one side is between 10° and 25°. After the retroreflector (230) is combined with the receiving slot (230d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<35°. Thus, the four forward-facing double-spherical cylindrical glass lens units are arranged side by side, and the four rearward-facing double-spherical cylindrical glass lens units are arranged side by side. The brightness superposition effect of the multi-point retroreflectors can improve the retroreflection efficiency and ensure the structural strength of the shell. The angle between the central principal axis of the emitted light (L4) of the LED light source (240) and the main direction of the retroreflected light (L3) of the retroreflector (230) on the same side is less than 22°.

[0150] The transparent top (210d) of the transparent optical plastic shell (210) has a sloping transition on both sides from the inside out and from high to low to its outer edge. The upper edge of the transparent top shell (210) is provided with four laterally expanding ground height positioning plates (210c) arranged at certain intervals. These plates can serve as a limit during road surface installation or prevent sinking after road surface installation.

[0151] The transparent optical plastic shell (210) has vertically protruding ribs (210j) spaced at intervals on the outer side wall of the transparent enclosure (210b). This can prevent the road spikes from rotating after being buried in the ground, and also improve the structural strength and installation stability of the shell.

[0152] The transparent optical plastic shell (210) has a recessed ring-shaped fitting structure at the bottom inner circumference of the transparent enclosure (210b). The ring-shaped fitting structure is provided with (multiple) ring-shaped hot-melt ribs that are adapted to its shape.

[0153] A rectangular photovoltaic cell is placed in the receiving groove of a rectangular inner support body. The rectangular inner support body is then fitted and fixed to the lower inner top wall of the middle part of the transparent top (210d) with adhesive. An air layer is left between the photovoltaic cell and the inner top wall of the transparent optical plastic shell (210) to provide redundant space for the shell deformation caused by vehicle running or impact, so that the photovoltaic device and other electronic components are not easily damaged.

[0154] The aforementioned high-beam LED emitter (240-1), light-distribution and brightness-enhancing LED emitter (240-2), photovoltaic device (250), energy storage element (260), and driving and control circuit (270) are connected by circuitry. The energy storage element (260) and driving and control circuit (270) are respectively embedded in the accommodating cavity (210q).

[0155] The bottom shell (220) is a bottom-cover type injection-molded bottom shell with a glue-filling hole (220k) and outwardly protruding spoke-shaped ribs (220j) at the bottom (which can make the bottom of the composite shell more firmly bonded to the mounting glue and prevent it from rotating). The edge of the bottom shell (220) has an upwardly protruding ring-shaped fitting structure, which has a welding groove corresponding to the hot-melt ribs at the bottom of the transparent enclosure (210b). The bottom shell (220) fits into the bottom inner enclosure of the transparent enclosure (210b) through the ring-shaped fitting structure, and forms a composite shell by hot-melt bonding with the transparent optical plastic shell (210) through the hot-melt ribs and welding grooves.

[0156] The encapsulating adhesive is poured into the potting holes (220k), leveled, and cured to form a cured encapsulating adhesive molded body (280). First, a polyurethane-based encapsulating adhesive is poured, leveled, and cured to form a soft adhesive layer of a certain thickness. Then, an epoxy-based encapsulating adhesive is poured, leveled, and cured to form a hard adhesive layer of a certain thickness. The soft adhesive layer has a cushioning effect and can withstand a certain degree of deformation, making the aforementioned electronic components less susceptible to damage from casing deformation caused by vehicle crushing or impact.

[0157] The outer surface and bottom surface of the composite shell may be coated with a protective layer (2120), such as an anti-reflective coating layer with scattering and reflection function, a sand-finish coating layer with a rough surface, or a color-developing coating layer with a specific color, etc.

[0158] Among them, the control and drive circuit (270) can control the light emission mode of the high beam LED light emitter (240-1) and the light distribution and brightness enhancement LED light emitter (240-2) respectively, realize a variety of control and light emission effects such as dual-group dual control, multi-group multi-control, and dual-color or multi-color switching of light emission color. It can also be connected to wireless devices to realize wireless controlled light emission function and intelligent network control function, forming an intelligent light-emitting road stud. It can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians through the switching of light emission mode.

[0159] This utility model of an underground solar-powered reflective plastic-shell road stud boasts low manufacturing costs and high cost-effectiveness. While ensuring adequate waterproofing, pressure resistance, and impact resistance, it offers both bidirectional LED illumination (small-angle upward and backward focusing of the high-beam LED emitter) and wide-angle LED illumination (left and right side LED emitters with enhanced brightness). Its edge LED light source group provides brightness and angle compensation for the high-beam LED emitter, enhancing its brightness and allowing for a larger luminous area for close-range observation, benefiting non-motorized vehicle drivers and pedestrians. The long-range illumination distance is also greater, improving visibility for motorized vehicle drivers. It adapts to the increasing trend of mixed-traffic roads and provides bidirectional reflective guidance for drivers and pedestrians by reflecting vehicle headlights through a retroreflector. This is particularly useful when electronic components are damaged or during periods of low traffic, relying solely on reflective guidance. It is suitable for highways, ordinary roads, and rural roads with fewer overloaded or heavy-load vehicles and better meets the demands of intelligent development.

[0160] Example 3

[0161] A buried solar-powered reflective plastic-shell road stud includes a transparent top shell (310) and a bottom shell (320) connected thereto, a retroreflector (330), a high-beam LED emitter (340-1), a light-distributing and brightening LED emitter (340-2), a photovoltaic device (350), an energy storage element (360), a drive and control circuit (370), and a curable encapsulated body (380), such as Figure 15-20 As shown.

[0162] The transparent optical plastic shell (310) is a transparent PC injection-molded shell with the required structural strength, having a downward-opening accommodating cavity (310q) formed by its transparent top (310d) and a transparent wall (310b) integrally connected to it and extending downward. The outer edge of the transparent top (310d) is circular, and the surface containing the outer edge is the ground reference surface for the road spike. The central part of the transparent top (310d) rises upward to form a raised portion (310t) that is higher than the ground reference surface and resembles a wide cross shape. The top surface of the raised portion (310t) of the transparent top (310d) of the transparent optical plastic shell (310) is a pressure-bearing surface with anti-slip protrusions.

[0163] Below the middle part of the raised portion (310t) of the transparent top (310d) of the transparent optical shell (310), there is a rectangular photovoltaic cell with a front-to-back length greater than its left-to-right width for its photovoltaic device (350). The middle part of the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (310b) is fixed to the lamp plate by a slot and adhesive. Two horizontally arranged (two facing forward and two facing backward, with the central axis mounting angle around 0°) straw hat-shaped F5-F8 lamp beads with focusing lenses are encapsulated and serve as the high beam LED light source (340-1). An air layer is left between the lamp plate and the inner top wall of the transparent optical shell (310) (the air layer participates in the optical structure for the LED light source emission). The inner top wall of the transparent optical shell (310) above the high beam LED light source (340-1) is respectively equipped with matching lenses. The main light-emitting groove (340c-1) is concave inward and upward, emitting light in the front-to-back direction. The main light-emitting groove (340c-1) has a vertical cross-section resembling a trapezoidal arch. The main light-emitting groove (340c-1) contains a hanging strip-shaped divider, similar to a dividing rib, which serves to separate sections and strengthen the structure. The main light-emitting groove (340c-1) has raised sections corresponding to the light-emitting surfaces of the high-beam LED emitter (340-1) in the front-to-back direction. (310t) The high-low transition surfaces (310p) on the front and rear sides of the left and right arms, the light-emitting LED light source (340-1) and the main light-emitting groove (340c-1) of the transparent optical shell (310) are matched in terms of their incident surface, light-emitting surface and the angle and thickness of their sidewalls, forming a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) that is incident on the incident surface and then emitted in the front-rear direction through the light-emitting surface satisfies: 0°≤θ4<28°.

[0164] Alternatively, a rectangular photovoltaic cell with a front-to-back length greater than its left-to-right width is provided below the middle part of the raised portion (310t) of the transparent top (310d) of the transparent optical plastic shell (310). The middle part of the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (310b) are respectively fixed to the lamp plate by slots and adhesive. The two horizontally arranged (two facing forward and two facing backward, with the central axis assembly elevation angle at about 0°) Lam The p-packaged straw hat-shaped F5-F8 LED beads with focusing lenses serve as the high beam LED emitter (340-1), and an air layer is left between the top of the lamp panel and the inner top wall of the transparent optical shell (310) [the air layer participates in the optical structure for LED emission]. The inner top wall of the transparent optical shell (310) above the high beam LED emitter (340-1) has corresponding concave main light-emitting grooves (340c-1) that are adapted to it and correspond to the front and rear light emission directions. The light trough (340c-1) is a vertically shaped, trapezoidal, arched light-emitting trough. The main light-emitting trough (340c-1) contains hanging strip-shaped dividers, similar to dividing ribs, which serve to separate sections and strengthen the structure. On the main light-emitting trough (340c-1), the light-emitting surface corresponding to the front-to-back direction of the high-beam LED emitter (340-1) is located on the high-low transition surfaces (310p) of the left and right arms of the raised portion (310t). The high-beam LED emitter (340-1) and the transparent optical plastic... The incident surface, the emitting surface, and the angle and thickness of the sidewall of the main light-emitting slot (340c-1) of the shell (310) are matched to form a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) incident from the incident surface and emitted in the front-to-back direction from the emitting surface satisfies: 0°≤θ4<28°. Furthermore, four SMD-packaged, upward-emitting 2835 surface-mount LED beads are welded to the front and rear ends of the photovoltaic panel where the photovoltaic power generation cell is located, respectively, to act as light-distributing and brightness-enhancing LED light emitters (340-2). Figure 18 As shown,

[0165] The center of the lamp board is also soldered with an SMD-packaged, upward-facing 2835 surface-mount LED chip (340-2) to act as a light-distributing and brightness-enhancing LED.

[0166] The aforementioned LED light-emitting element (340-2) and the high-beam LED light-emitting element (340-1) form an LED light-distribution optical structure that includes, but is not limited to, matching in terms of luminous brightness, luminous angle, and luminous color.

[0167] The transparent optical plastic shell (310) has a groove-shaped receiving hole (330d) with an outward opening and a forward-facing opening direction on the high-low transition surface (310p) of the raised portion (310t) of the transparent top (310d). The raised portion (310t) also has a groove-shaped receiving hole (330d) with an outward opening and a rearward-facing opening direction on the high-low transition surface (310p). The groove-shaped receiving hole (330d) contains a microprism array injection-molded reflector that acts as a retroreflector (330) through an ultrasonic heat-sealing process. An air layer is left between the two elements to form a microprism structure with an air layer at the bottom. The retroreflection angle of the reflector (330) on one side is between 15° and 25°. After the retroreflector (330) is combined with the receiving slot (330d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<30°. Moreover, the angle between the central principal axis of the emitted light (L4) of the LED light emitter (340) and the main direction of the retroreflected light (L3) of the retroreflector (330) on the same side is less than 22°. Alternatively, a microbead array retroreflective sheet with a reflective coating on the bottom and multiple small lens units arranged in an array combination structure can be used as the retroreflector (330). The transparent optical plastic shell (310) Below the middle part of the raised portion (310t) of the transparent top (310d) of the LED, there is a rectangular photovoltaic cell with a front-to-back length greater than its left-to-right width. The middle part of the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (310b) is fixed to the lamp plate by slots and adhesive. Two horizontally arranged (two facing forward and two facing backward, with the central axis mounting angle around 0°) straw hat-shaped F5 to F8 LED beads with focusing lenses are encapsulated and serve as the high beam LED light source (340-1). An air layer is left between the lamp plate and the inner top wall of the transparent optical plastic shell (310). The air layer participates in the emission of the LED light source. [Optical Structure] The transparent optical shell (310) above the high-beam LED emitter (340-1) has concave main light-emitting grooves (340c-1) on its inner top wall, which are adapted to it and correspond to the front and rear light-emitting directions. The main light-emitting groove (340c-1) is a light-emitting groove with a trapezoidal arched vertical cross-section. The main light-emitting groove (340c-1) is provided with a hanging strip-shaped divider, similar to a dividing rib, which can play the role of dividing the area and strengthening the structure. The light-emitting surface of the main light-emitting groove (340c-1) corresponding to the front and rear light-emitting surface of the high-beam LED emitter (340-1) is a high-low transition surface (310p) on the front and rear sides of the left and right arms of the raised part (310t).The light-emitting LED emitter (340-1) and the main light-emitting slot (340c-1) of the transparent optical plastic shell (310) are matched in terms of the angle and thickness of their incident surface, light-emitting surface, and sidewalls, forming a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) incident from the incident surface and emitted in the front-back direction from the light-emitting surface satisfies: 0°≤θ4<28°. Furthermore, four SMD-packaged, upward-emitting 2835 surface-mount LED beads are welded to the front and rear ends of the photovoltaic panel containing the photovoltaic cell, respectively, to act as light-distributing and brightness-enhancing LED emitters (340-2). Figure 21 As shown,

[0168] The transparent top (310d) of the transparent optical plastic shell (310) has a sloping transition on both sides from the inside out and from high to low to its outer edge. The upper edge of the transparent top shell (310) is provided with four laterally expanding ground height positioning plates (310c) arranged at certain intervals. These plates can serve as a limit during road surface installation or prevent sinking after road surface installation.

[0169] The transparent optical plastic shell (310) has vertically protruding ribs (310j) spaced at intervals on the outer side wall of the transparent enclosure (310b). This can prevent the road spikes from rotating after being buried in the ground, and also improve the structural strength and installation stability of the shell.

[0170] The transparent optical plastic shell (310) has a recessed ring-shaped fitting structure at the bottom inner circumference of the transparent enclosure (310b). The ring-shaped fitting structure is provided with (multiple) ring-shaped hot-melt ribs that are adapted to its shape.

[0171] A rectangular photovoltaic cell is placed in the receiving groove of a rectangular inner support body. The rectangular inner support body is then fitted and fixed to the lower inner top wall of the middle part of the transparent top (310d) with adhesive. An air layer is left between the photovoltaic cell and the inner top wall of the transparent optical plastic shell (310) to provide redundant space for the shell deformation caused by vehicle running or impact, so that the photovoltaic device and other electronic components are not easily damaged.

[0172] The aforementioned high-beam LED emitter (340-1), light-distribution and brightness-enhancing LED emitter (340-2), photovoltaic device (350), energy storage element (360), and driving and control circuit (370) are connected by circuitry. The energy storage element (360) and driving and control circuit (370) are respectively embedded in the accommodating cavity (310q).

[0173] The bottom shell (320) is a bottom-cover type injection-molded bottom shell with a glue-filling hole (320k) and outwardly protruding spoke-shaped ribs (320j) at the bottom (which can make the bottom of the composite shell more firmly bonded to the mounting glue and prevent it from rotating). The edge of the bottom shell (320) has an upwardly protruding ring-shaped fitting structure, which has a welding groove corresponding to the hot-melt ribs at the bottom of the transparent enclosure (310b). The bottom shell (320) fits into the bottom inner enclosure of the transparent enclosure (310b) through the ring-shaped fitting structure, and forms a composite shell by hot-melt bonding with the transparent optical plastic shell (310) through the hot-melt ribs and welding grooves.

[0174] The encapsulating adhesive is poured into the potting holes (320k), leveled, and cured to form a cured encapsulating adhesive molded body (380). A polyurethane-based encapsulating adhesive can be first poured, leveled, and cured to form a soft adhesive layer of a certain thickness. Then, an epoxy-based encapsulating adhesive is poured, leveled, and cured to form a hard adhesive layer of a certain thickness. The soft adhesive layer has a cushioning effect and can withstand a certain degree of deformation, making the aforementioned electronic components less susceptible to damage from casing deformation caused by vehicle crushing or impact.

[0175] Among them, the control and drive circuit (370) can control the light emission mode of the high beam LED light emitter (340-1) and the light distribution and brightness enhancement LED light emitter (340-2) respectively, realize various control and light emission effects such as dual-group dual control, multi-group multi-control, and dual-color or multi-color switching of light emission color. It can also be connected to wireless devices to realize wireless controlled light emission function and intelligent network control function, forming an intelligent light-emitting road stud. It can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians through the switching of light emission mode.

[0176] The ground-mounted solar-powered reflective plastic-shell road stud of this invention can be directly buried in the road surface for use, or it can be assembled with a protective bottom shell (either a hard shell or a flexible shell can be selected to provide protection for the overall structure) to form a road stud structure with a protective bottom shell before being buried in the road surface for use.

[0177] This utility model of an underground solar-powered reflective plastic-shell road stud boasts low manufacturing costs and high cost-effectiveness. While ensuring adequate waterproofing, pressure resistance, and impact resistance, it offers both bidirectional LED illumination (small-angle upward-facing and backward-facing LED emitters) and wide-angle illumination (front, rear, left, and right-facing LED emitters). Its edge LED light source group provides brightness and angle compensation for the high-beam LED emitters, enhancing their brightness and increasing the illumination area for close-range observation, thus facilitating observation by non-motorized vehicle drivers and pedestrians. It also extends the viewing distance for long-range illumination, benefiting motorized vehicle drivers. This design adapts to the increasing trend of mixed-traffic roads. Furthermore, it provides bidirectional reflective guidance for drivers and pedestrians by reflecting vehicle headlights through retroreflectors. This is particularly useful when electronic components are damaged or during periods of low traffic, relying solely on reflective indicators. It is suitable for highways, ordinary roads, and rural roads with fewer overloaded or heavy-load vehicles, and better meets the demands of intelligent development.

[0178] Example 4

[0179] A buried solar-powered reflective plastic-shell road stud includes a transparent top shell (410) and a bottom shell (420) attached thereto, a retroreflector (430), a high-beam LED emitter (440-1), a light-distributing and brightening LED emitter (440-2), a photovoltaic device (450), an energy storage element (460), a drive and control circuit (470), a cured encapsulant body (480), and an adhesive layer (490), such as Figure 22-26 As shown.

[0180] The transparent optical plastic shell (410) is a transparent PC injection-molded shell with the required structural strength, having a transparent top (410d) and a transparent wall (410b) that is integral with it and extends downwards, forming a downward-opening accommodating cavity (410q). The outer edge of the transparent top (410d) is circular, and the surface where the outer edge is located is the underground reference surface of the road spike. The central part of the transparent top (410d) rises upwards to form a raised portion (410t) that is higher than the underground reference surface, resembling a wide cross shape. The top surface of the raised portion (410t) of the transparent top (410d) of the transparent optical plastic shell (410) is a pressure-bearing surface with anti-slip protrusions.

[0181] Below the middle part of the raised portion (410t) of the transparent top (410d) of the transparent optical plastic shell (410), there is a rectangular photovoltaic cell with a left-right width greater than its front-back length. The photovoltaic cell is located on the left and right sides of the transparent inner support body between the front and back sides and the inner wall of the adjacent transparent enclosure (410b). Two Lamp-encapsulated straw hat-shaped F5-F8 LED beads with focusing lenses, which are obliquely tilted [the assembly tilt angle of the central axis is between 5° and 12°], are fixed to the lamp plate by slots and adhesive to serve as the high beam LED light source (440-1). The inner top wall of the transparent optical plastic shell (410) above the high beam LED light source (440-1) is respectively equipped with matching light-emitting elements corresponding to the front and back directions. The main light-emitting groove (440c-1) is concave in the upper part. The main light-emitting groove (440c-1) is a light-emitting groove with a vertical cross-section similar to a trapezoidal arch. The light-emitting surface of the main light-emitting groove (440c-1) corresponding to the light emitted in the front and rear directions of the far beam LED light emitter (440-1) corresponds to the left and right sides of the high-low transition surface (410p) where the front and rear end faces of the raised part (410t) are located. The light-incident surface, light-emitting surface and the angle and thickness of the side wall of the main light-emitting groove (440c-1) of the far beam LED light emitter (440-1) and the transparent optical plastic shell (410) are matched to form a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) that is incident on the light-incident surface and emitted in the front and rear directions through the light-emitting surface satisfies: 0°≤θ4<28°.

[0182] The two SMD-encapsulated, upward-emitting 2835 surface-mount LEDs, fixed to the front and rear ends of the lamp board via slots and adhesive below the transparent inner support of the middle part of the left and right high beam LED emitters (440-1), serve as the light distribution and brightness enhancement LED emitters (440-2). The transparent optical plastic shell (410) above the light distribution and brightness enhancement LED emitters (440-2) has a vertically shaped inverted U-shaped light distribution and emission groove (440c-2) on its inner top wall. The light-emitting surface of the slot (440c-2) can be equipped with a light-diffusing grid that facilitates the large emission angle of the LED light-emitting body (440-2) for light distribution and brightness enhancement. The LED light-emitting body (440-2) emits light after being matched with the optical structure on the light distribution and light-emitting slot (440c-2), and forms an LED light distribution optical structure with the high-beam LED light-emitting body (440-1) that includes, but is not limited to, matching in terms of emission brightness, emission angle, and emission color.

[0183] The transparent optical plastic shell (410) has two parallel, outwardly open, forward-facing hole-type receiving grooves (430d) on the middle part of the high-low transition surface (410p) where the front end face of the raised portion (410t) of the transparent top (410d) is located. The raised portion (410t) also has two parallel, outwardly open, rearward-facing hole-type receiving grooves (430d) on the middle part of the high-low transition surface (410p) where the rear end face of the raised portion (410t) is located. On the front high-low transition surfaces (410p) of the left and right arms of the 10t, there is a hole-type receiving groove (430d) with an external opening facing forward. On the rear high-low transition surfaces (410p) of the left and right arms of the raised part (410t), there is a hole-type receiving groove (430d) with an external opening facing backward. The hole-type receiving groove (430d) is combined with an interlocking structure and an adhesive layer (490) (such as a cured molding layer of epoxy structural adhesive or polyurethane structural adhesive). A spherical cylindrical glass lens unit (similar to a cat's eye) with a spherical, curved, or free-faced optical lens structure, a reflective coating on its bottom, and satisfying retroreflection conditions serves as a retroreflector (430). The retroreflection angle of the retroreflector (430) on one side is between 10° and 25°. After the retroreflector (430) is combined with the receiving slot (430d), the elevation angle (θ3) of the principal direction of the retroreflected light (L3) satisfies: 0°≤θ3<40°, thus achieving the desired effect. The four bispherical cylindrical glass lens units facing forward are arranged in two rows at the front and two rows at the back, and the four bispherical cylindrical glass lens units facing backward are also arranged in two rows at the front and two rows at the back. The brightness superposition effect of the retroreflectors at multiple points can improve the retroreflection efficiency and ensure the structural strength of the shell. Furthermore, the angle between the central principal optical axis of the emitted light (L4) of the LED light source (440) and the principal direction of the retroreflected light (L3) of the retroreflector (430) on the same side is less than 22°.

[0184] The transparent top (410d) of the transparent optical plastic shell (410) has a sloping transition on both sides from the inside out and from high to low to its outer edge. The upper edge of the transparent top shell (410) is provided with four laterally expanding ground height positioning plates (410c) arranged at certain intervals. These plates can serve as a limit during road surface installation or prevent sinking after road surface installation.

[0185] The transparent optical plastic shell (410) has vertically protruding ribs (410j) spaced at intervals on the outer side wall of the transparent enclosure (410b). This can prevent the road spikes from rotating after being buried in the ground, and also improve the structural strength and installation stability of the shell.

[0186] The transparent optical plastic shell (410) has a recessed ring-shaped fitting structure at the bottom inner circumference of the transparent enclosure (410b). The ring-shaped fitting structure is provided with (multiple) ring-shaped hot-melt ribs that are adapted to its shape.

[0187] A transparent inner support body, adapted to the internal cavity structure of the transparent optical plastic shell (410), is fixed in the accommodating cavity (410q) by a stepped positioning structure and adhesive. An air layer is formed between the top of the transparent inner support body and the inner top wall of the transparent optical plastic shell (410). This creates air layers between the upper part of the high-beam LED emitter (440-1) and the inner top wall of the transparent optical plastic shell (410), and between the upper part of the photovoltaic power generation cell and the inner top wall of the transparent optical plastic shell (410). The air layer not only participates in the optical structure of the LED emitter but also provides redundant space for the shell deformation of the transparent optical plastic shell (410) caused by vehicle crushing or impact, making it less likely for electronic components such as photovoltaic devices to be damaged.

[0188] The aforementioned high-beam LED emitter (440-1), light-distribution and brightness-enhancing LED emitter (440-2), photovoltaic device (450), energy storage element (460), and driving and control circuit (470) are connected by circuitry. The energy storage element (460) and driving and control circuit (470) are respectively embedded in the lower part of the inner support body. Then, a small amount of adhesive is used to fix the above components in the transparent optical plastic shell (410).

[0189] The bottom shell (420) is a bottom-cover type injection-molded bottom shell with a glue-filling hole (420k) and outwardly protruding spoke-shaped ribs (420j) at the bottom (which can make the bottom of the composite shell more firmly bonded to the mounting glue and prevent it from rotating). The edge of the bottom shell (420) has an upwardly protruding ring-shaped fitting structure, which has a welding groove corresponding to the hot-melt ribs at the bottom of the transparent enclosure (410b). The bottom shell (420) fits into the bottom inner enclosure of the transparent enclosure (410b) through the ring-shaped fitting structure, and forms a composite shell by hot-melt bonding with the transparent optical plastic shell (410) through the hot-melt ribs and welding grooves.

[0190] The encapsulating adhesive is poured into the potting holes (420k), leveled, and cured to form a cured encapsulating adhesive molded body (480). Polyurethane encapsulating adhesive can be first poured, leveled, and cured to form a soft adhesive layer of a certain thickness. Then, epoxy encapsulating adhesive is poured, leveled, and cured to form a hard adhesive layer of a certain thickness. The soft adhesive layer has a buffering effect and can withstand a certain degree of deformation, making the aforementioned electronic components less susceptible to damage from casing deformation caused by vehicle crushing or impact.

[0191] Among them, the control and drive circuit (470) can control the light emission mode of the high beam LED light emitter (440-1) and the light distribution and brightness enhancement LED light emitter (440-2) respectively, realize various control and light emission effects such as dual-group dual control, multi-group multi-control, and dual-color or multi-color switching of light emission color. It can also be connected to wireless devices to realize wireless controlled light emission function and intelligent network control function, forming an intelligent light-emitting road stud. It can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians through the switching of light emission mode.

[0192] The ground-mounted solar-powered reflective plastic-shell road stud of this invention can be directly buried in the road surface for use, or it can be assembled with a protective bottom shell (either a hard shell or a flexible shell can be selected to provide protection for the overall structure) to form a road stud structure with a protective bottom shell before being buried in the road surface for use.

[0193] This utility model of an underground solar-powered reflective plastic-shell road stud boasts low manufacturing costs and high cost-effectiveness. While ensuring adequate waterproofing, pressure resistance, and impact resistance, it offers both bidirectional LED illumination (small-angle upward-facing and backward-facing LED emitters) and wide-angle illumination (front, rear, left, and right-facing LED emitters). Its edge LED light source group provides brightness and angle compensation for the high-beam LED emitters, enhancing their brightness and increasing the illumination area for close-range observation, thus facilitating observation by non-motorized vehicle drivers and pedestrians. It also extends the viewing distance for long-range illumination, benefiting motorized vehicle drivers. This design adapts to the increasing trend of mixed-traffic roads. Furthermore, it provides bidirectional reflective guidance for drivers and pedestrians by reflecting vehicle headlights through retroreflectors. This is particularly useful when electronic components are damaged or during periods of low traffic, relying solely on reflective indicators. It is suitable for highways, ordinary roads, and rural roads with fewer overloaded or heavy-load vehicles, and better meets the demands of intelligent development.

[0194] Example 5

[0195] A buried solar-powered reflective plastic-shell road stud includes a transparent top shell (510) and a bottom shell (520) attached thereto, a retroreflector (530), a high-beam LED emitter (540-1), a light-distributing and brightening LED emitter (540-2), a photovoltaic device (550), an energy storage element (560), a drive and control circuit (570), a cured encapsulant body (580), and an adhesive layer (590), such as Figure 27-31 As shown.

[0196] The transparent optical plastic shell (510) is a transparent PC injection-molded shell with the required structural strength, having a downward-opening accommodating cavity (510q) formed by its transparent top (510d) and a transparent wall (510b) integrally connected to it and extending downward. The outer edge of the transparent top (510d) is circular, and the surface containing the outer edge is the underground reference surface of the road spike. The central part of the transparent top (510d) rises upward to form a raised portion (510t) that is higher than the underground reference surface and resembles a wide cross shape. The top surface of the raised portion (510t) of the transparent top (510d) of the transparent optical plastic shell (510) is a pressure-bearing surface with anti-slip protrusions.

[0197] The transparent top (510d) of the transparent optical shell (510) has a rectangular photovoltaic cell with a width greater than its length on the left and right sides than on the front and back below the middle part of the raised part (510t). Four angled (with a central axis elevation angle between 5° and 20°) Lamp-encapsulated straw hat-shaped F5-F8 LED beads with focusing lenses, fixed to the inner wall of the adjacent transparent enclosure (510b) on the transparent inner support body via slots and adhesive, serve as the high-beam LED emitter (540-1). The inner top wall of the transparent optical shell (510) above the high-beam LED emitter (540-1) has corresponding inner supports that emit light in the front and back directions. The main light-emitting groove (540c-1) is a rectangular (looking down) light-emitting groove with a trapezoidal arched vertical cross-section. The light-emitting surface of the main light-emitting groove (540c-1) corresponding to the front and rear ends of the raised part (510t) is a transitional surface (510p) facing forward and backward. The light-emitting surface of the LED light-emitting body (540-1) and the main light-emitting groove (540c-1) of the transparent optical shell (510) are matched in terms of the angle and thickness of the light-incident surface, the light-emitting surface and the side wall of the main light-emitting groove (540c-1) of the LED light-emitting body (540-1) and the light-emitting surface, forming a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) that is incident on the light-incident surface and emitted in the front and rear directions through the light-emitting surface satisfies: 0°≤θ4<26°.

[0198] The four corner sections of the cross-shaped structure formed by the high-beam LED emitter (540-1) and the photovoltaic cell [i.e., the left and right sides of the high-beam LED emitter (540-1)] are fixed to the four corners of the lamp board by slots and adhesive. These four SMD-encapsulated, upward-emitting 2835 surface-mount LED beads serve as light distribution and brightness enhancement LED emitters (540-2). The transparent optical plastic shell (510) above the light distribution and brightness enhancement LED emitter (540-2) has a vertical cross-section with an inverted U-shaped triangular shape on its inner top wall. The light-emitting slot (540c-2) has a light-emitting surface that can be equipped with a light-diffusing grid to facilitate the large emission angle of the LED light-emitting body (540-2) for enhanced light distribution. The LED light-emitting body (540-2) emits light after matching with the optical structure on the light-emitting slot (540c-2), and forms an LED light-distribution optical structure with the high-beam LED light-emitting body (540-1), including but not limited to matching in terms of luminous brightness, emission angle, and emission color.

[0199] The transparent optical shell (510) has a hole-type receiving groove (530d) with an external opening facing forward on the left and right sides of the high-low transition surface (510p) where the front end face of the raised portion (510t) of the transparent top (510d) is located, and on the front high-low transition surface (510p) of the left and right arms. The raised portion (510t) has a hole-type receiving groove (530d) with an external opening facing backward on the left and right sides of the high-low transition surface (510p) where the rear end face of the raised portion (510t) is located, and on the rear high-low transition surface (510p) of the left and right arms. The hole-type receiving groove (530d) contains a spherical column with a reflective coating at its bottom, which meets the retroreflection condition, and is connected to an optical lens structure with a spherical, curved, or free surface by an interlocking structure and an adhesive layer (590) (such as a cured molding layer of epoxy structural adhesive or polyurethane structural adhesive). The bulk-shaped glass lens unit (similar to a cat's eye) acts as a retroreflector (530). The retroreflection angle of the retroreflected light on one side of the retroreflector (530) is between 8° and 23°. After the retroreflector (530) is combined with the receiving slot (530d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<36°. Thus, the four forward-facing double-spherical cylindrical glass lens units are arranged in two rows at the front and two rows at the back, and the four rear-facing double-spherical cylindrical glass lens units are arranged in two rows at the front and two rows at the back. The brightness superposition effect of the multi-point retroreflectors can improve the retroreflection efficiency and ensure the structural strength of the shell. Moreover, the horizontal angle between the central principal optical axis of the emitted light (L4) of the LED light source (540) and the main direction of the retroreflected light (L3) of the retroreflector (530) on the same side is less than 25°.

[0200] The transparent top (510d) of the transparent optical plastic shell (510) has a sloping transition on both sides from the inside out and from high to low to its outer edge. The upper edge of the transparent top shell (510) is provided with four laterally expanding buried height positioning plates (510c) arranged at certain intervals. These plates can serve as a limit during road surface installation or prevent sinking after road surface installation.

[0201] The transparent optical plastic shell (510) has vertically protruding ribs (510j) spaced at intervals on the outer side wall of the transparent enclosure (510b). This can prevent the road spikes from rotating after being buried in the ground, and also improve the structural strength and installation stability of the shell.

[0202] The transparent optical plastic shell (510) has a recessed ring-shaped fitting structure at the bottom inner circumference of the transparent enclosure (510b). The ring-shaped fitting structure is provided with (multiple) ring-shaped hot-melt ribs that are adapted to its shape.

[0203] A transparent inner support body, adapted to the internal cavity structure of the transparent optical plastic shell (510), is fixed in the accommodating cavity (510q) by a stepped positioning structure and adhesive. An air layer is formed between the top of the transparent inner support body and the inner top wall of the transparent optical plastic shell (510). This creates air layers between the upper part of the high-beam LED emitter (540-1) and the inner top wall of the transparent optical plastic shell (510), and between the upper part of the photovoltaic power generation cell and the inner top wall of the transparent optical plastic shell (510). The air layer not only participates in the optical structure of the LED emitter but also provides redundant space for the shell deformation of the transparent optical plastic shell (510) caused by vehicle crushing or impact, making it less likely for electronic components such as photovoltaic devices to be damaged.

[0204] The aforementioned high-beam LED emitter (540-1), light-distribution and brightness-enhancing LED emitter (540-2), photovoltaic device (550), energy storage element (560), and driving and control circuit (570) are connected by circuitry. The energy storage element (560) and driving and control circuit (570) are respectively embedded in the lower part of the inner support body. The above components are then fixed in the transparent optical plastic shell (510) with a small amount of adhesive.

[0205] The bottom shell (520) is a bottom-cover type injection-molded bottom shell with a glue-filling hole (520k) and outwardly protruding spoke-shaped ribs (520j) at the bottom (which can make the bottom of the composite shell more firmly bonded to the mounting glue and prevent it from rotating). The edge of the bottom shell (520) has an upwardly protruding ring-shaped fitting structure, which has a welding groove corresponding to the hot-melt ribs at the bottom of the transparent enclosure (510b). The bottom shell (520) fits into the bottom inner enclosure of the transparent enclosure (510b) through the ring-shaped fitting structure, and forms a composite shell by hot-melt bonding with the transparent optical plastic shell (510) through the hot-melt ribs and welding grooves.

[0206] The encapsulating adhesive is poured into the potting holes (520k), leveled, and cured to form a cured encapsulating adhesive molded body (580). A polyurethane-based encapsulating adhesive can be first poured, leveled, and cured to form a soft adhesive layer of a certain thickness. Then, an epoxy-based encapsulating adhesive is poured, leveled, and cured to form a hard adhesive layer of a certain thickness. The soft adhesive layer has a cushioning effect and can withstand a certain degree of deformation, making the aforementioned electronic components less susceptible to damage from casing deformation caused by vehicle crushing or impact.

[0207] A protective coating layer (5120) may be provided on the outer surface of the composite shell, such as an anti-reflective coating layer with scattering and reflection function, a sandblasted coating layer with a rough surface, or a color-developing coating layer with a specific color, etc.

[0208] Among them, the control and drive circuit (570) can control the light emission mode of the high beam LED light emitter (540-1) and the light distribution and brightness enhancement LED light emitter (540-2) respectively, realize a variety of control and light emission effects such as dual-group dual control, multi-group multi-control, and dual-color or multi-color switching of light emission color. It can also be connected to wireless devices to realize wireless controlled light emission function and intelligent network control function, forming an intelligent light-emitting road stud. It can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians through the switching of light emission mode.

[0209] The ground-mounted solar-powered reflective plastic-shell road stud of this invention can be directly buried in the road surface for use, or it can be assembled with a protective bottom shell (either a hard shell or a flexible shell can be selected to provide protection for the overall structure) to form a road stud structure with a protective bottom shell before being buried in the road surface for use.

[0210] This utility model of an underground solar-powered reflective plastic-shell road stud boasts low manufacturing cost and high cost-effectiveness. While ensuring certain waterproof, pressure-resistant, and impact-resistant properties, it features both bidirectional LED illumination with small-angle upward-facing and backward-facing LED emitters for high-beam illumination, and wide-angle upward-facing LED emitters for enhanced illumination. Its edge LED light source group can compensate for the brightness and angle of the high-beam LED emitter, enhancing its brightness. This allows for a larger luminous area for close-range observation, benefiting non-motorized vehicle drivers and pedestrians, and a longer viewing distance for long-range illumination, benefiting motorized vehicle drivers. It adapts to the increasing trend of mixed-traffic roads and can also provide bidirectional reflective guidance for drivers and pedestrians by reflecting vehicle headlights through retroreflectors. Especially useful when electronic components are damaged or during periods of low traffic, relying solely on reflective guidance is crucial. Suitable for highways, ordinary roads, and rural roads with fewer overloaded or heavy-load vehicles, it better meets the needs of intelligent development.

[0211] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, variations, combinations, additions, equivalent substitutions, etc., made within the spirit and principles of the present utility model, or the application of the present technology to related and similar technical fields, should be included within the protection scope of the present utility model.

Claims

1. A buried solar-powered reflective plastic-shell road stud, comprising a transparent optical plastic shell (1) and a base shell (2) attached thereto, a retroreflector (3), an LED light emitter (4), a photovoltaic device containing a photovoltaic power generation cell (5), an energy storage element (6), a drive and control circuit (7), and a curing encapsulant body (8). Its features : The transparent optical plastic shell (1) is a transparent plastic molded shell with the required structural strength and bilateral symmetry, consisting of a transparent top (1d) and a transparent enclosure (1b) that is integral with the transparent top (1d) and extends downwards, forming an accommodating cavity (1q) with a downward opening. The outer edge of the transparent top (1d) is the ground reference surface of the road spike, and at least its central portion rises upwards to form a raised portion (1t) higher than the ground reference surface. The transparent optical shell (1) has an externally opening accommodating slot (3d) on the side of the raised portion (1t) of the transparent top (1d) and / or the edge of the raised portion (1t) above the buried reference plane. The accommodating slot (3d) is a groove-type accommodating slot or / and a hole-type accommodating slot. An antireflector (3) is attached to the accommodating slot (3d) according to the set main direction of the retroreflected light and the incident range angle. The transparent optical plastic shell (1) and its lower bottom shell (2) with potting holes (2k) are combined through a composite structure and / or an assembly structure to form a cavity shell. The LED light emitter (4) and photovoltaic device (5) are respectively disposed in the accommodating cavity (1q) below the transparent top (1d) of the transparent optical plastic shell (1). The LED light emitter (4) is adapted to the optical structure on the transparent optical plastic shell (1) to form a light-emitting optical structure that emits light forward and / or backward. The LED light source (4), photovoltaic device (5), energy storage element (6), and driving and control circuit (7) are connected by a circuit, and an encapsulating adhesive curing molding body (8) is provided at the bottom of the cavity shell to encapsulate the LED light source (4), photovoltaic device (5), energy storage element (6), and driving and control circuit (7) in its cavity shell to form a buried solar light-emitting reflective plastic shell road stud with a waterproof and insulating encapsulation structure and a pressure and impact resistant strength structure, which has the dual functions of light emission and reflection within the required angle range.

2. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: An antireflector (3) with an elevation angle (θ3) of the principal direction of its retroreflected light (L3) less than 30° is fixed in the accommodating slot (3d) by an adhesive layer (9). The adhesive layer (9) is an adhesive layer formed by curing liquid resins including but not limited to acrylic resins, polyurethane resins, polyurea resins, silicone resins, and photocurable resins; Alternatively, a retroreflector (3) is fixed in the accommodating slot (3d) by a hot-melt composite structure. The retroreflector is higher than the underground reference plane and the elevation angle (θ3) of the main direction of the retroreflected light (L3) is less than 30°.

3. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The transparent optical plastic shell (1) has groove-shaped receiving slots (3d) with outward openings and opening directions facing forward and backward on the high-low transition surface (1p) of the raised part (1t) of the transparent top (1d). The retroreflector (3) is a microprism-type retroreflective sheet with an array structure composed of multiple microprisms and a reflective coating or air layer at the bottom. The microprism-type retroreflective sheet with a reflective coating at the bottom is bonded to the groove-shaped receiving slot (3d) by an adhesive layer (9) or a hot-melt composite structure, or to the microprism with an air layer at the bottom. The retroreflective sheet is bonded to the groove-shaped receiving hole (3d) by a hot-melt composite structure, or the microprism-type retroreflective sheet with a reflective coating at the bottom is bonded to the groove-shaped receiving hole (3d) by a hot-melt medium transition layer and a hot-melt composite structure with similar physical properties to the transparent optical plastic shell (1) and the retroreflector (3), or the microprism-type retroreflective sheet with an air layer at the bottom is bonded to the groove-shaped receiving hole (3d) by a hot-melt medium transition layer and a hot-melt composite structure with similar physical properties to the transparent optical plastic shell (1) and the retroreflector (3). Alternatively, the transparent top (1d) of the transparent plastic shell (1) has a groove-shaped receiving hole (3d) with an external opening and the opening direction facing forward and backward on the high-low transition surface (1p) where the front and rear end faces of the raised part (1t) are located. The retroreflector (3) is an injection-molded microbead array composite retroreflective sheet with a reflective coating at the bottom and multiple small lens units arranged in an array combination structure. The microbead array composite retroreflective sheet is bonded to the groove-shaped receiving hole (3d) by an adhesive layer (9) or a hot-melt composite structure, or the microbead array composite retroreflective sheet is bonded to the groove-shaped receiving hole (3d) by a hot-melt medium transition layer and a hot-melt composite structure with similar physical properties to the transparent optical plastic shell (1) and the retroreflector (3). Alternatively, the transparent top (1d) of the transparent optical plastic shell (1) has a plurality of hole-type receiving slots (3d) with openings facing forward or backward on the high-low transition surface (1p) near the edge of the transparent top (1d). The retroreflector (3) is a lens unit type retroreflector with a spherical, curved or free surface optical lens structure, a reflective coating on its bottom, and a retroreflection condition. The lens unit type retroreflector is combined in the hole-type receiving slot (3d) to form a retroreflection structure with a multi-point retroreflector combination configuration and a retroreflection brightness superposition effect in the same direction.

4. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: A photovoltaic device (5) composed of photovoltaic cells is provided below the central part or middle part of the raised part (1t) of the transparent top (1d) of the transparent optical plastic shell (1). LED light emitters (4) are respectively provided between the front and rear ends of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b), or LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4) is a recessed light-emitting groove (4c) adapted to it and corresponding to the front and rear directions of light emission. The light-emitting groove (4c) is provided with a light-incident surface (4r) and a light-emitting surface (4m) corresponding to the front and rear directions of light emission of the LED light emitter (4). An air layer is provided above the photovoltaic cell and between the LED light emitter (4) and the inner top surface of the transparent optical plastic shell (1). The light-emitting body (4) and the light-emitting groove (4c) of the transparent optical shell (1) have their incident surface (4r), light-emitting surface (4m) and their sidewalls matched to form a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) incident from the incident surface (4r) and emitted in the front-back direction through the light-emitting surface (4m) satisfies: 0°≤θ4<45° and its emission range angle (α4) satisfies: θ4≤α4 / 2.

5. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: After the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<30°, and the angle between the main direction of the retroreflected light (L3) of the retroreflector (3) and the central principal optical axis of the emitted light (L4) of the LED light emitter (4) on the same side is less than 30°.

6. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The transparent top (1d) of the transparent optical plastic shell (1) has four concave corners of the raised portion (1t) to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical plastic shell (1), there is a rectangular photovoltaic cell with the front-to-back length of its photovoltaic device (5) being greater than its left-to-right width. LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and corresponds to the front-to-back light emission direction. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front-to-back light emission direction of the LED light emitter (4) is the high-low transition surface (1p) of the front and back sides of the left and right arms of the raised portion (1t). The transparent optical plastic shell (1) has a groove-shaped receiving hole (3d) with an outward opening and facing forward on the high-low transition surface (1p) where the front end face of the raised part (1t) of the transparent top (1d) is located. The rear end face of the raised part (1t) has a groove-shaped receiving hole (3d) with an outward opening and facing backward on the high-low transition surface (1p). The retroreflector (3) is a microprism-type retroreflective sheet with a reflective coating or air layer at the bottom, composed of multiple microprisms in an array structure, or a microbead array-type retroreflective sheet with a reflective coating at the bottom, composed of multiple small lens units arranged in an array combination structure. The retroreflector (3) is bonded to the groove-shaped receiving hole (3d) by an adhesive layer (9) or a hot-melt composite structure. Inside the slot (3d), after the retroreflector (3) is combined with the slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°. The LED light emitter (4) and the light-emitting slot (4c) located on the left and right sides of the retroreflector (3) have their incident surface (4r), light-emitting surface (4m) and their sidewalls matched, forming a light-emitting optical structure in which the central principal axis elevation angle (θ4) of the emitted light (L4) incident from the incident surface (4r) and emitted forward through the light-emitting surface (4m) satisfies: 0°≤θ4<30°. The horizontal angle between the central principal axis of the emitted light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

7. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The transparent top (1d) of the transparent optical plastic shell (1) has four concave corners of the raised portion (1t) to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical plastic shell (1), there is a rectangular photovoltaic cell with the front-to-back length of its photovoltaic device (5) being greater than its left-to-right width. LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and corresponds to the front-to-back light emission direction. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front-to-back light emission direction of the LED light emitter (4) is the high-low transition surface (1p) of the front and back sides of the left and right arms of the raised portion (1t). The transparent optical shell (1) has multiple parallel, externally open, and rearward-facing hole-type receiving slots (3d) on the high-low transition surface (1p) where the front end face of the raised portion (1t) of the raised portion (1t) is located. The rear end face of the raised portion (1t) has multiple parallel, externally open, and rearward-facing hole-type receiving slots (3d). The retroreflector (3) is a directional lens unit type retroreflector with a spherical, curved, or free-surface optical lens structure, a reflective coating on its bottom, and satisfying the retroreflection condition. The retroreflector (3) is combined in the hole-type receiving slot (3d) through a fitting structure and an adhesive layer (9). The retroreflector (3) and the receiving slot (3d) After combination, the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°, forming a retroreflection structure with left and right positions combined. The LED light emitter (4) and the light-emitting slots (4c) located on the left and right sides of the retroreflector (3) have their incident surface (4r), light-emitting surface (4m) and their sidewalls matched, forming a light-emitting optical structure in which the central principal optical axis elevation angle (θ4) of the emitted light (L4) incident from the incident surface (4r) and emitted in the front-back direction through the light-emitting surface (4m) satisfies: 0°≤θ4<30°. The horizontal angle between the central principal optical axis of the emitted light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

8. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The transparent top (1d) of the transparent optical plastic shell (1) has four concave corners of the raised portion (1t) to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical plastic shell (1), there is a rectangular photovoltaic cell with the front-to-back length of its photovoltaic device (5) being greater than its left-to-right width. LED light emitters (4) are respectively provided between the left and right sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and corresponds to the front-to-back light emission direction. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front-to-back light emission direction of the LED light emitter (4) is the high-low transition surface (1p) of the front and back sides of the left and right arms of the raised portion (1t). The transparent optical plastic shell (1) has two parallel, outwardly open, forward-facing hole-type receiving grooves (3d) on the middle part of the high-low transition surface (1p) where the front end face of the raised portion (1t) of the transparent top (1d) is located. The raised portion (1t) also has two parallel, outwardly open, rearward-facing hole-type receiving grooves (3d) on the middle part of the high-low transition surface (1p) where the rear end face of the raised portion (1t) is located. The raised portion (1t) has two parallel, outwardly open, rearward-facing hole-type receiving grooves (3d) on the left and right sides. Each of the two arms has a hole-type receiving groove (3d) with an external opening facing forward on the front high-low transition surface (1p). Each of the two arms of the raised part (1t) has a hole-type receiving groove (3d) with an external opening facing backward on the rear high-low transition surface (1p). The reflector (3) is a directional lens unit type retroreflector with a spherical, curved or free surface optical lens structure, a reflective coating on its bottom, and satisfying the retroreflection condition. The reflector (3) is combined with the interlocking structure and the adhesive layer (9) in the hole-type receiving slot (3d). After the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°, forming a retroreflection structure with left and right positions combined. The light-emitting slot between the LED light-emitting body (4) and the retroreflector (3) located on the same front and rear sides, the end face, and the left and right arm retroreflectors (3) is ( The incident surface (4r), the exit surface (4m), and the sidewalls of 4c) are matched in terms of angle and thickness, forming a light-emitting optical structure in which the central principal axis elevation angle (θ4) of the outgoing light (L4) incident from the incident surface (4r) and exiting through the exit surface (4m) in the front-back direction satisfies: 0°≤θ4<30°, and the horizontal angle between the central principal axis of the outgoing light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

9. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The transparent top (1d) of the transparent optical plastic shell (1) has four concave corners of the raised portion (1t) to form a wide cross-shaped raised portion. Below the middle part of the raised portion (1t) of the transparent top (1d) of the transparent optical plastic shell (1), there is a rectangular photovoltaic cell with a left and right width greater than the front and back length of its photovoltaic device (5). LED light emitters (4) are respectively provided between the front and back sides of the photovoltaic cell and the inner wall of the adjacent transparent enclosure (1b). Above the LED light emitter (4), there is a concave rectangular light-emitting groove (4c) that is adapted to it and emits light in the front and back directions respectively. The light-emitting surface (4m) of the light-emitting groove (4c) corresponding to the front and back light-emitting surface of the LED light emitter (4) is the high and low transition surface (1p) of the front and back ends of the raised portion (1t). The transparent optical shell (1) has a hole-type receiving groove (3d) with an external opening facing forward on the left and right sides of the high-low transition surface (1p) where the front end face of the raised part (1t) of the transparent top (1d) is located, and a hole-type receiving groove (3d) with an external opening facing forward on the front side of the high-low transition surface (1p) where the rear end face of the raised part (1t) is located, and a hole-type receiving groove (3d) with an external opening facing backward on the rear side of the high-low transition surface (1p) where the rear end face of the raised part (1t) is located. The retroreflector (3) is a directional lens unit type retroreflector with a spherical, curved, or free surface optical lens structure, a reflective coating on its bottom, and a retroreflection condition. The retroreflector (3) is combined in the hole-type receiving groove (3d) by a fitting structure and an adhesive layer (9). After the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) satisfies: 0°≤θ3<45°, forming a retroreflection structure with front-rear and left-right combination respectively. The light-incident surface (4r), light-outcident surface (4m) and the side wall of the light-out slot (4c) between the LED light emitter (4) and the retroreflectors (3) on the left and right sides of the front end face are matched to form a light-emitting optical structure in which the elevation angle (θ4) of the central principal optical axis of the emitted light (L4) incident from the light-incident surface (4r) and emitted from the light-outcident surface (4m) in the front-rear direction satisfies: 0°≤θ4<30°. Moreover, the horizontal angle between the central principal optical axis of the emitted light (L4) and the main direction of the retroreflected light (L3) of the retroreflector (3) on the same side is less than 25°.

10. A buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The opening angle (α) of the receiving groove (3d) of the raised portion (1t) of the transparent top (1d) of the transparent optical plastic shell (1) is between 3° and 60°, wherein the opening angle (α) of the hole-type receiving groove (3d) is between 3° and 25°, and the opening angle (α) of the groove-type receiving groove (3d) is between 35° and 60°. Alternatively, after the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the principal direction of the retroreflected light (L3) is between 5° and 30°. Alternatively, the retroreflector (3) may have a single-sided retroreflection angle between 10° and 30°. Alternatively, after the retroreflector (3) is combined with the receiving slot (3d), the elevation angle (θ3) of the main direction of the retroreflected light (L3) is less than or equal to the single-sided range angle of the retroreflected light. Alternatively, the retroreflector (3) is a retroreflector whose main direction of retroreflected light (L3) after being combined with the receiving slot (3d) of the raised portion (1t) has a deflection angle between its normal angle and its central axis and between 15° and 35°. Alternatively, the retroreflector (3) may be a retroreflector with an incident angle range greater than 45° and / or an observation angle range greater than 45°. Alternatively, the retroreflector (3) is a lens unit type retroreflector with a spherical optical lens structure and a reflective coating on its bottom. The diameter of the retroreflective lens unit is between 8mm and 12mm, and its retroreflective light range angle is a small-angle type, a large-angle type, or a full-angle type. Alternatively, the retroreflector (3) is a microprism-type retroreflective sheet with a three-sided right-angle prism structure array at its bottom that satisfies the retroreflection condition. Alternatively, the retroreflector (3) is an injection-molded microbead array retroreflective sheet composed of multiple small glass lens reflective beads with a reflective coating on the bottom arranged in an array combination structure, with the diameter of the small glass lens reflective beads being between 3mm and 5mm.

11. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The location of the accommodating slot (3d) is provided with a strength-reinforcing structure. Alternatively, the location of the accommodating slot (3d) may be provided with a locally thickened structure. Alternatively, a support body may be added below the location of the aforementioned receiving slot (3d). Alternatively, a reinforcing rib or reinforcing column may be provided below or to the side of the location of the accommodating groove (3d).

12. The buried solar-powered reflective plastic-shell road stud according to claim 4, characterized in that: The light-emitting slot (4c) is a light-emitting slot with an optical structure including but not limited to light refraction structure, light reflection structure, light focusing structure, light angle deflection structure, and light upward shift structure, which is adapted to the LED light-emitting body (4) and facilitates the assembly of the LED light-emitting body (4) at the required angle. Alternatively, the light-emitting slot (4c) may have a spherical light-concentrating lens on its light-incident surface (4r) and / or light-emitting surface (4m). Alternatively, the inner top surface of the light-emitting groove (4c) may be provided with a downwardly protruding rib or a downwardly hanging partition.

13. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The photovoltaic cell is further provided with an upward-emitting LED light source (4) at the edge or / and corner of the inner wall of the adjacent transparent enclosure (1b).

14. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The composite cavity shell is a composite cavity shell formed by combining a transparent optical plastic shell (1) and a bottom shell (2) through a hot-melt composite structure and a curing encapsulant (8). Alternatively, the cavity shell of the assembly structure is a cavity shell of the assembly structure formed by combining a transparent optical plastic shell (1) with a fixing hole (1k) and a bottom shell (2) through the fixing hole (1k), fasteners (10), and a curing molded body (8) of encapsulating adhesive. Alternatively, the aforementioned rail spike composite structure cavity shell is a transparent optical plastic shell (1) with a fixing hole (1k) and a bottom shell (2) combined by a hot melt composite structure and a curing molded body (8), and further combined by the aforementioned fixing hole (1k), fastener (10) and curing molded body (8) to form a rail spike composite structure cavity shell with a fastener-reinforced structure. Alternatively, the outer perimeter of the transparent enclosure (1b) of the transparent optical plastic shell (1) is larger than the outer perimeter of the bottom shell (2), and the bottom shell (2) is fitted into the downward opening of the accommodating cavity (1q) of the transparent optical plastic shell (1) to form an embedded composite cavity shell or an embedded assembly assembly cavity shell. Alternatively, the outer perimeter of the transparent enclosure (1b) of the transparent optical plastic shell (1) is smaller than the outer perimeter of the bottom shell (2), and the bottom shell (2) is fitted into the bottom of the transparent enclosure (1b) of the transparent optical plastic shell (1) and covers the outer perimeter of the bottom of the transparent enclosure (1b) to form a cavity shell with a shell-type composite structure or a cavity shell with a shell-type assembly structure.

15. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The transparent enclosure (1b) of the transparent optical plastic shell (1) is provided with a coating protective layer (12) on the outer side wall, or / and the bottom of the transparent enclosure (1b) or the bottom of the bottom shell (2) of the transparent optical plastic shell (1) is provided with a coating protective layer (12).

16. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The buried solar-powered reflective plastic-shell road stud also includes a protective shell (11), which is either a soft protective shell with a cushioning function or a hard protective shell with a structural reinforcement function. The cavity shell of the composite structure or the cavity shell of the assembled structure is embedded in the protective shell (11) to form a ground-buried solar-emitting reflective plastic shell road stud with a protective shell (11).

17. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The transparent optical plastic shell (1) has a circular shape when viewed from above near the underground reference surface, or the height of the transparent top (1d) of the transparent optical plastic shell (1) is between 8mm and 12mm, or the overall height of the transparent optical plastic shell (1) is between 40mm and 80mm. Alternatively, the outer dimensions of the transparent optical plastic shell (1) are between 120mm and 180mm. Alternatively, the edge of the raised portion (1t) of the transparent top (1d) of the transparent optical plastic shell (1) transitions from high to low towards the outer edge of the transparent optical plastic shell (1) via a buffer surface, wherein the buffer surface is a slope, a folded surface, or an arc surface. Alternatively, the transparent top (1d) of the transparent optical plastic shell (1) may have a notch, groove, hole, or anti-slip structure on the raised portion (1t). Alternatively, the top edge of the transparent optical plastic shell (1) may also have symmetrically arranged, outwardly protruding buried height positioning plates (1c). Alternatively, the transparent optical plastic shell (1) may be provided with a structural reinforcement auxiliary structure or an assembly auxiliary structure, or the outer side wall of the transparent optical plastic shell (1) may be provided with an outwardly protruding rib (1j) or an outwardly protruding column. Alternatively, the inner wall of the transparent optical plastic shell (1) may be provided with recessed grooves or protruding pillars. Alternatively, the bottom shell (2) may have a structural reinforcement auxiliary structure, an assembly auxiliary structure, or an installation auxiliary structure. Alternatively, the bottom of the bottom shell (2) may be provided with raised ribs.

18. A buried solar-powered reflective plastic-shell road stud according to claim 4, characterized in that: A support layer or circuit board partition layer is provided between the air layer and the encapsulating adhesive cured molding body (8).

19. A buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The photovoltaic cell of the photovoltaic device (5) is a rectangular, square, or I-shaped photovoltaic cell.

20. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The encapsulant cured molded body (8) is an epoxy resin cured molded body in liquid or molten state, or a silicone resin cured molded body, or a polyurethane resin cured molded body in liquid or molten state, or a combination encapsulant cured molded body that is one or more of epoxy resin, silicone resin, or polyurethane resin that is poured and cured in liquid or molten state in stages or potted and cured, or a combination encapsulant cured molded body that is one or more of epoxy resin, silicone resin, or polyurethane resin that is poured and cured in liquid or molten state in layers. Alternatively, the encapsulating adhesive cured molded body (8) is a cavity shell with a composite structure or a cavity shell with an assembled structure. After the cavity shell is inverted, the encapsulating adhesive is poured into the bottom of the bottom shell (2) in liquid form and then cured to form an encapsulating adhesive cured molded body. Alternatively, the encapsulant curing molded body (8) is an encapsulant curing molded body formed by two or two layers of encapsulant potting and curing, or an encapsulant curing molded body formed by multiple or multiple layers of encapsulant potting and curing.

21. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The accommodating slot (3d) or fixing hole (1k) is provided with a long afterglow luminescent body. Alternatively, a long afterglow luminescent body may be provided on the transparent optical plastic shell (1) or below the transparent top of the transparent optical plastic shell (1). The long-afterglow luminescent body is a solidified molded body of long-afterglow luminescent powder and liquid transparent medium, thereby forming a triple-luminescent embedded solar luminescent reflective road stud that has both reflective and LED luminescent functions as well as long-afterglow luminescent functions. Alternatively, a fluorescent light emitter may be provided within the aforementioned accommodating slot (3d) or fixing hole (1k). Alternatively, a fluorescent light emitter may be provided on the transparent optical plastic shell (1) or below the transparent top of the transparent optical plastic shell (1). The fluorescent light source is a solidified molded body of fluorescent light powder and liquid transparent medium, thereby forming a triple-lighting embedded solar-powered reflective road stud that has both reflective and LED light-emitting functions as well as fluorescent light-emitting functions.

22. The buried solar-powered reflective plastic-shell road stud according to claim 1, characterized in that: The driving and control circuit (7) is a driving and control circuit that controls and drives the LED light source (4) to emit light constantly, or to emit light with a certain period T and duty cycle D, or to emit light alternately in two or more groups, or to emit light in a certain timing sequence. Alternatively, the driving and control circuit (7) is a single-chip microcomputer control circuit, and the buried solar-powered reflective plastic shell road stud is a controlled buried solar-powered reflective plastic shell road stud whose LED light source (4) is controlled by the single-chip microcomputer to emit light according to the light emission mode corresponding to the preset program of the single-chip microcomputer. Alternatively, the drive and control circuit (7) may also be connected to a wireless device. The buried solar-powered reflective plastic shell road stud is a wirelessly controlled buried solar-powered reflective plastic shell road stud with wireless receiving or wireless transmitting and receiving functions and whose LED light emitter (4) is controlled to emit light by the received wireless signal.

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