Buried solar LED luminous spike

Abstract

A buried solar Led luminous spike is characterized in that an Led central light source group is arranged below the central part of a raised part in the middle of a transparent optical plastic shell, spliced photovoltaic power generation sheets are arranged on front and rear areas or peripheral areas of the Led central light source group, and Led light distribution light source groups are symmetrically distributed on the peripheral edges or / and corners of the photovoltaic power generation sheets at intervals; the middle Led far light source set is matched with the corner Led near light source set, all electronic components are electrically connected and packaged in the transparent optical plastic shell through a packaging adhesive curing forming body, and air layers are arranged above the photovoltaic power generation piece and between the Led center light source set and the inner top face of the transparent optical plastic shell respectively. The photovoltaic power generation settable area is larger, electronic components are not prone to being damaged due to deformation of the shell, and the service life is longer.

Description

Technical Field

[0001] The invention relates to the field of road traffic safety light-emitting devices, and in particular to an underground solar LED light-emitting road stud. Technical Background

[0002] Underground solar luminous road studs are sometimes called solar raised road signs or solar ground lights. When installed, the main part below the underground reference surface is buried in the road surface, and the top surface above the underground reference surface is exposed and flush with the road surface or slightly higher than the road surface. It has the function of storing solar energy during the day and supplying solar energy to the light-emitting devices at night. It can play a visual induction or prompting role for motor vehicle drivers and pedestrians, and can also serve as auxiliary road lighting equipment.

[0003] The existing buried solar luminous road studs have photovoltaic power generation panels located in the central area or below the middle area of ​​the transparent plastic shell top shell, and the LED central light source group as the main light source is located in the front and rear areas and / or the left and right areas of the photovoltaic power generation panels or below the light output groove. It has the following main defects:

[0004] 1. Since the front and rear light-emitting slots are usually arranged in pairs, they occupy a large area on the top, resulting in a small area for the photovoltaic power generation sheet, weak photovoltaic power generation capacity, and affecting the luminous duration and brightness of the road stud after a single full charge;

[0005] 2. When the road stud is in use, it is crushed by vehicles, and the central part of the transparent plastic shell is deformed the most, which makes the photovoltaic power generation panels installed in this area easily damaged by the shell deformation;

[0006] 3. With the progress of society and the development of transportation, various roads with mixed traffic of vehicles and non-motor vehicles, and mixed traffic of people and vehicles are increasing. It is required that the buried solar luminous road studs can not only have a good luminous effect on motor vehicle drivers, but also have a good luminous effect on non-motor vehicle drivers and pedestrians, and can transmit different road information according to the different speeds and observation angles of motor vehicle drivers, non-motor vehicle drivers, and pedestrians.

[0007] In the past, buried solar luminous road studs were mainly used on ordinary roads, with limited application scenarios. However, roads are now continuously subdivided into urban roads, tourist roads, slow-moving roads, etc. according to their functions, and more luminous modes are often required to achieve their diversified functional demands.

[0008] However, the existing underground solar luminous road studs have a single function and a single service object. The luminous effect on non-motor vehicle drivers and pedestrians is not good, and they do not have the function of transmitting different road information to motor vehicle drivers, non-motor vehicle drivers and pedestrians. The intelligence level is low, especially in complex traffic areas such as intersections. It can no longer meet the new needs of the times for underground solar luminous road studs.

[0009] To sum up, how to solve the problems of the existing underground solar luminous road studs, such as the small installation area of ​​the photovoltaic power generation sheet and the easy damage of the photovoltaic power generation sheet due to the deformation of the shell, while ensuring the luminous effect, ensure the luminous effect of the underground solar luminous road studs, make the luminous observation angle (elevation angle) perfect, and have no blind spots for pedestrians, so as to adapt to the development trend of the increasing number of mixed traffic roads, and facilitate intelligent driving, intelligent control and multi-functional luminescence. It has become an urgent task to ensure the luminous effect of the underground solar luminous road studs, make the luminous observation angle (elevation angle) perfect, and have no blind spots for pedestrians, so as to adapt to the development trend of the increasing number of mixed traffic roads, and facilitate intelligent driving, intelligent control and multi-functional luminescence. Summary of the invention

[0010] Aiming at the limitations of the prior art underground solar luminous road studs, the present invention creatively proposes an underground solar LED luminous road stud.

[0011] Under the condition of meeting national standards and industry specifications, the present invention combines material molding technology, luminescence and optics, comprehensively considers and fully utilizes the limited size resource range of solar road studs, so that the photovoltaic power generation sheet can achieve the largest area ratio under the same shell size, so as to fully guarantee the power required for its luminescence performance, and optically matches the luminescence optical structure and the assembly structure, breaking through the conventional design of existing solar road studs;

[0012] The present invention arranges an LED central light source group below the central area or middle area of ​​the transparent plastic shell top shell, and a single central light output groove matching it is arranged above it. The angle and thickness of the light incident surface, light output surface and the side wall of the LED of the LED central light source group match each other, and the light output light is focused and emitted in the front and rear directions from the light output surface through the transparent plastic shell at a set main beam elevation angle and output range angle of the output light. The front and rear sides or the periphery of the LED central light source group are provided with a mosaic-type photovoltaic power generation sheet, and the LED light distribution light source group is arranged around the edge and / or corner positions of the accommodating cavity outside the photovoltaic power generation sheet at a plurality of points at intervals, which can achieve a brightening effect and maximize the visible light emitting area. The LED central light source group and the LED light distribution light source group are matched in area, angle, brightness and color to improve the overall light emitting effect - the LED light distribution light source group can make the short-range observation light emitting area larger, which is beneficial for non-motor vehicle drivers and pedestrians to observe, and the LED central source group can make the long-range light emitting viewing distance farther, which is beneficial for motor vehicle drivers to observe.

[0013] In the present invention, since the LED light source is more resistant to deformation than the photovoltaic power generation sheet, the central part of the transparent plastic shell with the largest deformation is replaced with an LED central light source group, and air layers are respectively left above the photovoltaic power generation sheet and above the LED central light source group and between the inner top surface of the transparent optical plastic shell, which not only constitutes an optical structure, but also provides deformation redundancy for the shell to sink under pressure, so that the photovoltaic power generation sheet and the LED light source group of the road stud are not easily squeezed and damaged by the deformation of the shell, and have a compression protection effect, can meet industry standards, and have a longer product life.

[0014] In the present invention, since the top area occupied by the single central light emitting slot is smaller than that occupied by the front and rear light emitting slots, the photovoltaic power generation sheet can be arranged in a larger area, and the photovoltaic power generation capacity is stronger, which can fully guarantee the power required for its luminous performance and the luminous endurance.

[0015] The present invention can control the light emitting modes of the LED central light source group and the LED light distribution light source group respectively through the control and driving circuit, realize multiple light emitting modes and light emitting effects such as dual-group dual control, multi-group multi-control, dual-color or multi-color switching of light emitting colors, etc., and can also be connected with wireless devices to realize wireless controlled light emitting function and intelligent networking control function, and transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians respectively through the switching of light emitting modes, which greatly expands the application scenarios and use fields of road studs.

[0016] The specific implementation scheme of the present invention is: an underground solar LED light-emitting road stud, comprising a transparent optical plastic shell (1), an inner bracket body (2), a packaging glue cured molded body (3), an LED central light source group (4), a photovoltaic device (6) including a photovoltaic power generation sheet, an energy storage element (7), and a control and drive circuit (8); the transparent optical plastic shell (1) is a bilaterally symmetrical cavity-shaped shell having a downwardly opening accommodating cavity (1q) formed by a transparent top (1d) and a transparent surrounding wall (1b) connected to the transparent top and extending downward, wherein the surface where the outer edge of the transparent top (1d) is located is the underground reference surface of the road stud,

[0017] The transparent top (1d) is provided with a raised portion higher than its buried reference surface at the middle portion along the front-rear direction of the corresponding road stud, and the raised portion and the non-raised portion near the front and rear ends thereof form a high-low transition connection through the light-emitting surface (1m).

[0018] The inner top wall of the central part of the raised portion is provided with a middle light emitting groove (4c) which is concave and arched upward and is compatible with the LED central light source group (4); the front and rear inner side walls of the middle light emitting groove (4c) which are open downward are provided with light entrance surfaces (1r); a LED central light source group (4) formed by a plurality of LEDs and serving as a high beam light source group is symmetrically provided in the middle light emitting groove (4c) or below the middle light emitting groove (4c); a mosaic-shaped photovoltaic power generation sheet is provided in the front and rear areas or the peripheral areas of the LED central light source group (4); an LED light distribution light source group (5) is symmetrically arranged at intervals on the edges or / and corners of the periphery of the photovoltaic power generation sheet; the LED central light source group (4), the LED light distribution light source group (5), the photovoltaic device (6), the energy storage element (7) and the control and driving circuit (8) are connected by a circuit, wherein the photovoltaic power generation sheets are connected in series or / and in parallel.

[0019] The inner support body (2) is a support layer adapted to the inner cavity structure of the transparent optical plastic shell (1) and combined in the accommodating cavity (1q); a packaging glue curing molding body (3) is provided below the inner support body (2); the inner support body (2), the LED central light source group (4), the photovoltaic device (6), the energy storage element (7), and the control and drive circuit (8) are encapsulated in the transparent optical plastic shell (1); the energy storage element (7) and the control and drive circuit (8) are respectively arranged in the inner support body (2) or below the inner support body (2); an underground solar LED light-emitting road stud with a waterproof packaging structure is formed in which air layers are respectively provided above the photovoltaic power generation sheet and between the LED central light source group (4) and the inner top surface of the transparent optical plastic shell (1);

[0020] The assembly elevation angle (β4) of the central axis of the LED of the central LED light source group (4) satisfies: 0°≤β4≤45° (when the assembly elevation angle of the central axis of the LED is set at about 0°, it is also called horizontal assembly, and when the assembly elevation angle of the central axis of the LED is set significantly greater than 0°, it is also called oblique assembly). The angle (such as the inclination angle) and thickness of the light incident surface (1r), the light exit surface (1m) and the side wall thereof of the central light exit groove (4c) of the LED of the central LED light source group (4) match each other, so as to form a luminous optical structure in which the central main optical axis elevation angle (θ4) of the output light (L4) incident from the light incident surface (1r) and then emitted in the front-rear direction through the light exit surface (1m) satisfies: 0°≤θ4<45° and the output range angle (α4) thereof satisfies: θ4≤α4 / 2.

[0021] The LED light distribution light source group (5) emits light through the optical structure at the corresponding position of the transparent optical plastic shell (1), and forms an LED light distribution optical structure including but not limited to matching in terms of luminous brightness, matching in terms of luminous angle, and matching in terms of luminous color with the LED central light source group (4).

[0022] Preferably, an LED central light source group (4) formed by two rows of LEDs arranged back to back and arranged in an array along the left-right direction is provided in or below the middle light outlet groove (4c), and rectangular photovoltaic power generation sheets are provided on the front and rear sides of the LED central light source group (4), and LED light distribution light source groups (5) are provided on the front and rear outer sides or / and the left and right outer sides of the photovoltaic power generation sheets, respectively.

[0023] Alternatively, two groups of LED central light source groups (4) arranged in opposite directions are provided in or below the central light exit groove (4c), rectangular photovoltaic power generation sheets are provided on the front, rear, left, and right sides of the LED central light source group (4), and LED light distribution light source groups (5) are provided on the front, rear, and left outer sides or / and the left and right outer sides of the photovoltaic power generation sheets, respectively.

[0024] Alternatively, two groups of LED central light source groups (4) arranged in opposite directions are arranged in or below the central light exit groove (4c), and the periphery of the LED central light source group (4) is provided with photovoltaic power generation sheets arranged in a polygonal mosaic pattern around it, and the front and rear outer sides or / and the left and right outer sides of the photovoltaic power generation sheets are respectively provided with LED light distribution light source groups (5),

[0025] Alternatively, two groups of LED central light source groups (4) arranged back to back are provided in or below the central light exit groove (4c), the outer periphery of the LED central light source group (4) is provided with photovoltaic power generation sheets arranged in a radial mosaic pattern around it, and an LED light distribution light source group (5) is provided between adjacent photovoltaic power generation sheets.

[0026] Preferably, the LED of the LED central light source group (4) is an LED with a self-contained focusing structure, or the LED of the LED central light source group (4) is an F5 (φ=5mm) to F10 (φ=10mm) lamp bead with a Lamp package and a transparent focusing head and pins.

[0027] Or the LEDs of the LED central light source group (4) are LEDs with a full luminous angle range of 20° to 60°,

[0028] Alternatively, the inner bracket body (2) is a pin (wire) plug-in bracket (2c), and the LED central light source group (4) is fixed (welded) on the circuit board via the pin (wire) plug-in bracket (2c);

[0029] The LED light source group (5) is a SMD packaged LED or a Lamp packaged LED.

[0030] Alternatively, the LED light distribution light source group (5) is arranged on the inner support body (2) or above the inner support body (2),

[0031] Alternatively, the LED light distribution light source group (5) is arranged inside the transparent inner support body (2) or below the transparent inner support body (2),

[0032] Alternatively, the LED light distribution light source group (5) is arranged on a circuit board layer that serves as an inner support body (2), or the LED light distribution light source group (5) is arranged on a photovoltaic board layer that serves as an inner support body (2).

[0033] Preferably, the ratio of the luminous intensity (I4) of the LED of the LED central light source group (4) to the luminous intensity (I5) of the LED of the LED light distribution light source group (5) is greater than 2:1, and the LED central light source group (4) and the LED light distribution light source group (5) form a LED light distribution optical structure with different luminous intensities.

[0034] Alternatively, the LED light distribution light source group (5) matches the optical structure of the corresponding part of the transparent optical plastic shell (1), forming a light emitting optical structure in which the central main light axis elevation angle (θ5) after emitting from the transparent optical plastic shell (1) satisfies: 45°<θ5≤90°, and the LED central light source group (4) and the LED light distribution light source group (5) respectively serve as the high beam light source group and the low beam light source group to form a LED light distribution optical structure matched with different main light emitting angles.

[0035] Or the emission range angle α2 (α5) of the emitted light (L5) of the LED light distribution light source group (5) after being emitted through the transparent optical plastic shell (1) is greater than or equal to the emission range angle α1 (α4) of the emitted light (L4) emitted from the LED central light source group (4) through the light emitting surface (1m) in the front-rear direction, or the emission range angle α1 (α4) of the emitted light (L4) of the LED central light source group (4) incident from the light incident surface (1r) and then emitted through the light emitting surface (1m) in the front-rear direction satisfies: α4≤60°, the emission range angle α2 (α5) of the emitted light (L5) of the LED light distribution light source group (5) after being emitted through the transparent optical plastic shell (1) satisfies: α5≥120°, and the LED central light source group (4) and the LED light distribution light source group (5) form a LED light distribution optical structure with no luminous dead angle at least in the front-rear direction (180°),

[0036] Or the LED light source group (5) comprises LEDs of different luminous colors,

[0037] Alternatively, the LED central light source group (4) and the LED light distribution light source group (5) respectively include LEDs of different luminous colors (preferably white light, green light, blue light, and red light), and the LED central light source group (4) and the LED light distribution light source group (5) distribute light to form an LED light distribution optical structure with matching luminous colors.

[0038] Alternatively, the LED central light source group (4) and the LED light distribution light source group (5) are controlled and driven by a control and driving circuit (8) to emit light at different periods T or duty cycles D respectively, and the LED central light source group (4) and the LED light distribution light source group (5) form a LED light distribution optical structure that matches different light emission modes.

[0039] Preferably, the assembly elevation angle (β4) of the LED central axis of the LED central light source group (4) is about 0° (flat projection), and the upper horizontal thickness W1 of the side wall where the light emitting surface (1m) is located is greater than or equal to the lower horizontal thickness W2.

[0040] Or the assembly elevation angle (β4) of the LED central axis of the LED central light source group (4) is greater than 0° (oblique elevation), and the upper oblique elevation thickness W3 of the side wall where the light emitting surface (1m) is located along the assembly elevation angle (β4) is less than or equal to the lower oblique elevation thickness W4,

[0041] Or the LED central axis of the LED light distribution light source group (5) is installed at an elevation angle of about 90° vertically upward (upward),

[0042] Or the light exiting surface (1m) is an inclined surface, or the light entering surface (1r) is an inclined surface,

[0043] Or the outer top surface (1a1) of the raised portion is a plane or a slightly arched curved surface, or the inner top surface (1b1) of the raised portion is a plane or a slightly arched curved surface,

[0044] Or the second outer top surface (1a2) of the non-raised part on both sides of the raised part is a plane, or the second inner top surface (1b2) of the non-raised part on both sides of the raised part is a plane,

[0045] Alternatively, the left and right ends of the raised portion transition from inside to outside and from high to low through curved surfaces or inclined surfaces to the outer edge of the transparent top (1d).

[0046] Preferably, the assembly elevation angle (β4) of the central axis of the LED of the central light source group (4) satisfies: 0°≤β4≤20°, and the angles and thicknesses of the light incident surface (1r), the light exit surface (1m) and the side walls thereof of the central light exit groove (4c) of the LED of the central light source group (4) match those of the LED and the transparent optical plastic shell (1), so as to form a luminous optical structure in which the central principal optical axis elevation angle (θ4) of the exit light (L4) incident from the light incident surface (1r) and then exiting in the front-rear direction through the light exit surface (1m) satisfies: 0°≤θ4<15° and the exit range angle (α4) satisfies: 20°≤α4≤45°.

[0047] Alternatively, the middle light exit groove (4c) is a light exit groove with an optical structure that is adapted to the LED central light source group (4), facilitates the assembly of the LED central light source group (4) at a desired angle, and has an optical structure including but not limited to a light refraction structure, a light reflection structure, a light focusing structure, a light angle deflection structure, and a light upward shifting structure, or the middle light exit groove (4c) has a spherical focusing lens on its light entrance surface (1r) or / and light exit surface (1m);

[0048] Alternatively, the median light exit groove (4c) is a light exit groove with a vertical cross section (generally a longitudinal cross section, i.e., a cross section along the front and rear direction of the corresponding road spike) similar to an isosceles trapezoid, and the light entrance surface (1r) corresponds to the two sides of the isosceles trapezoid, respectively.

[0049] Furthermore, the middle light emitting groove (4c) is provided with a downward convex strip rib (4j) to strengthen the structure.

[0050] Furthermore, a downwardly hanging separator 1 (4g) is provided on the inner top surface of the middle light emitting groove (4c), and the separator 1 (4g) divides the middle light emitting groove (4c) into two or more branch light emitting grooves.

[0051] Furthermore, the front and rear outer sides of the photovoltaic power generation sheet are provided with a front and rear edge LED light distribution light source group (5-1), and the inner top wall above the front and rear edge LED light distribution light source group (5-1) is provided with a front and rear edge light outlet groove (5c-1) that is matched therewith and is concave therewith.

[0052] or / and

[0053] The left and right outer sides of the photovoltaic power generation sheet are provided with left and right edge LED light distribution light source groups (5-2), and the inner top wall above the left and right edge LED light distribution light source groups (5-2) is provided with left and right edge light output grooves (5c-2) that are matched therewith and are concave therewith.

[0054] Furthermore, the emission range angle α2 (α5) of the emitted light (L5) of the LEDs of the front and rear edge LED light distribution light source group 1 (5-1) or / and the left and right edge LED light distribution light source group 2 (5-2) after being emitted through the transparent optical plastic shell (1) and the emission range angle α1 (α4) of the emitted light (L4) of the LEDs of the LED central light source group (4) incident from the light incident surface (1r) and then emitted in the front and rear directions through the light exiting surface (1m) satisfy: α4+α5≥180°, and the light distribution of the two forms an LED light distribution optical structure with no luminous dead angle in the front and rear directions (180°) of the corresponding road studs.

[0055] Or the front and rear edge light outlet groove 1 (5c-1) is a light outlet groove adapted to the front and rear edge LED light distribution light source group 1 (5-1), with a light diffusion optical structure (5k) that is conducive to the front and rear edge LED light distribution light source group 1 (5-1) to emit light with a large emission range angle, the assembly elevation angle of the LED center axis of the front and rear edge LED light distribution light source group 1 (5-1) is about 90° vertically upward (upward), and the front and rear edge LED light distribution light source group 1 (5-1) and the front and rear edge light outlet groove 1 (5c-1) are matched to form a low-beam LED light distribution optical structure,

[0056] Or the left and right side light outlet grooves 2 (5c-2) are adapted to the left and right side LED light distribution light source groups 2 (5-2), and are light outlet grooves with a light diffusion optical structure (5k) that is conducive to the left and right side LED light distribution light source groups 2 (5-2) emitting light with a large emission range angle, the assembly elevation angle of the LED central axis of the left and right side LED light distribution light source groups 2 (5-2) is about 90° vertically upward (upward), and the left and right side LED light distribution light source groups 2 (5-2) and the left and right side light outlet grooves 2 (5c-2) are matched to form a low-beam LED light distribution optical structure,

[0057] Preferably, the front and rear edge light emitting grooves 1 (5c-1) and / or the left and right edge light emitting grooves 2 (5c-2) are block-shaped or segment-shaped edge light emitting grooves in the shape of an arch, an arc block or a chord segment.

[0058] Preferably, the front and rear edge light emitting grooves 1 (5c-1) and / or the left and right edge light emitting grooves 2 (5c-2) are light emitting grooves with a vertical cross section in a trapezoidal or inverted U shape.

[0059] Furthermore, a second separator (5g) is provided on the inner top surface of the front and rear edge light emitting grooves 1 (5c-1), and the second separator (5g) divides the front and rear edge light emitting grooves 1 (5c-1) into two or more branch light emitting grooves, or / and a second separator (5g) is provided on the inner top surface of the left and right edge light emitting grooves 2 (5c-2), and the second separator (5g) divides the left and right edge light emitting grooves 2 (5c-2) into two or more branch light emitting grooves.

[0060] Preferably, the light diffusion optical structure (5k) is a light diffusion grille, and the light diffusion grille is a downward convex V-shaped or U-shaped or inverted trapezoidal convex rib array, or the light diffusion grille is an upward concave groove array.

[0061] Preferably, the outer edge of the transparent top (1d) of the transparent optical plastic shell (1) is circular.

[0062] Alternatively, the portion where the transparent surrounding wall (1b) and the transparent top (1d) of the transparent optical plastic shell (1) meet is a circular structure,

[0063] Or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a circular inner edge structure near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle with a plurality of chord cut edges near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle with a vertical convex structure concave near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a polygonal inner edge structure near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-polygonal inner edge structure formed by a polygon with a vertical convex structure concave near the upper edge,

[0064] The transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a circular outer edge structure near the lower edge, or a quasi-circular outer edge structure formed by a circle with a plurality of chord cut edges near the lower edge, or a quasi-circular outer edge structure formed by a circle being concave due to a vertical inward convex structure near the lower edge, or a quasi-circular outer edge structure formed by a circle being convexed by a vertical outward convex structure near the lower edge of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), or a polygonal outer edge structure formed by a polygon being convexed by a vertical outward convex structure near the lower edge of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), or a quasi-polygonal outer edge structure formed by a polygon being convexed by a vertical outward convex structure near the lower edge of the transparent surrounding wall (1b) of the transparent optical plastic shell (1).

[0065] Or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a circular inner edge structure near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle being cut by a plurality of chordal edges near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle being recessed by a vertical inward convex structure near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a polygonal inner edge structure near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-polygonal inner edge structure formed by a polygon being convexed by a vertical inward convex structure near the lower edge;

[0066] Alternatively, the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is concave to form a vertical support structure (1s-1), or an inner side wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is provided with a convex vertical support body (1z-1),

[0067] Alternatively, the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is convex to form a second vertical support structure (1s-2), or a second vertical support body (1z-2) convex to the outside is provided on the outer side wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1);

[0068] Alternatively, a positioning structure (1d) for assembling the inner support body (2) is further provided on the inner side wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), and the inner support body (2) is fixedly engaged in the accommodating cavity (1q) of the transparent optical plastic shell (1) through the positioning structure (1d).

[0069] Alternatively, the top edge of the transparent optical plastic shell (1) is also provided with symmetrically arranged convex support bodies (1c), or the four corners of the top edge of the transparent optical plastic shell (1) are respectively provided with convex support bodies (1c),

[0070] Alternatively, the top surface and / or edge of the transparent optical plastic shell (1) is also provided with a light-guiding structure (1g),

[0071] Alternatively, a stripe-shaped light-guiding structure (1g) is provided at the edge of the top of the transparent optical plastic shell (1),

[0072] Alternatively, the top surface and / or edge of the transparent optical plastic housing (1) is also provided with an anti-slip structure (1p).

[0073] Furthermore, the inner support body (2) is an inner support layer served by a circuit board layer, or the inner support body (5) is an inner support layer served by a photovoltaic panel.

[0074] Furthermore, the encapsulating glue cured molding (3) is an encapsulating glue cured molding of a single-layer cured packaging, or an encapsulating glue cured molding of a layered cured packaging.

[0075] Alternatively, the encapsulating adhesive cured molding (3) is an encapsulating adhesive cured molding for single-time encapsulation, or an encapsulating adhesive cured molding for multiple-time encapsulation.

[0076] Alternatively, the encapsulating glue solidified molded body (3) is a double-layer composite encapsulating glue solidified molded body comprising a soft glue layer and a hard glue layer, wherein the encapsulating glue solidified molded body (3) close to the inner support body (2) is a soft glue layer (preferably a polyurethane layer or a silicone layer), and the encapsulating glue solidified molded body (3) close to the bottom of the transparent optical plastic shell (1) is a hard glue layer (preferably an epoxy glue layer). The soft glue layer has a buffering effect and can withstand a certain deformation, so that the photovoltaic power generation sheet and the circuit board of the road stud are not easily damaged by the shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0077] Furthermore, the bottom of the transparent optical plastic shell (1) is combined with a composite bottom shell (9) having glue injection holes (9k) through a composite structure to form a composite shell.

[0078] The encapsulation glue solidified molding (3) encapsulates the inner support body (2), the LED central light source group (4), the photovoltaic device (6), the energy storage element (7), and the control and drive circuit (8) in the composite shell to form a waterproof and pressure-resistant packaging structure.

[0079] Furthermore, the bottom of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is provided with a composite structure 1 (1h) for being composited with the composite bottom shell (9), the composite structure 1 (1h) being a hot-melt composite structure, a solvent composite structure, an adhesive composite structure, or two or three thereof, the composite bottom shell (9) being provided with a composite structure 2 (9h) corresponding to the composite structure 1 (1h) and for being composited with the transparent optical plastic shell (1), the composite structure 2 (9h) being a hot-melt composite structure, a solvent composite structure, an adhesive composite structure, or two or three thereof, the composite bottom shell (9) is composited with the composite structure 1 (1h) and the composite structure 2 (9h) at the bottom of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) to form a composite shell,

[0080] Alternatively, the composite bottom shell (9) is a transparent plastic injection-molded bottom shell having the same or similar material as the transparent optical plastic shell (1), or is a non-transparent plastic injection-molded bottom shell having the same or similar material as the transparent optical plastic shell (1).

[0081] Alternatively, the bottom of the composite bottom shell (9) has an inner concave or outer convex concave-convex structure (9j).

[0082] Furthermore, a fastening structure (10) including but not limited to fastening screws or fastening bolts is provided, and a fixing hole (1k) adapted to the fastening structure (10) is provided on the transparent surrounding wall (1b) of the transparent optical plastic shell (1) or / and on the vertical support body 1 (1z-1) or the vertical support body 2 (1z-2) of the transparent optical plastic shell (1).

[0083] Or the composite bottom shell (2) has a second fixing hole (9k2) adapted to the fastening structure (10), and the transparent optical plastic shell (1) and the composite bottom shell (2) are further assembled and fixed via the fastening structure (10), or the periphery of the first fixing hole (1k) and / or the periphery of the second fixing hole (9k2) are provided with a hot-melt composite structure, and the transparent optical plastic shell (1) and the composite bottom shell (9) are composited via the hot-melt composite structure and assembled and fixed via the fastening structure (10),

[0084] Alternatively, a waterproof packaging structure is provided in the fixing hole one (1k) or / and the fixing hole two (9k2), or a structural adhesive reinforcement structure is provided in the fixing hole one (1k) or / and the fixing hole two (9k2).

[0085] Furthermore, the outer side wall and / or the bottom and / or the top edge of the transparent optical plastic shell (1) is also combined with a protective shell (11), and the protective shell (11) is a protective soft shell with a buffering function, or the protective shell (11) is a protective hard shell with a structural reinforcement function.

[0086] Alternatively, the protective outer shell (11) is a protective bottom shell (11-1) composed of a side wall and a bottom, and having an upwardly open cavity; the transparent optical plastic shell (1) is also provided with a fixing screw hole (1s) adapted to the fastener (11); the transparent optical plastic shell (1) and the protective bottom shell (11-1) are combined via the fastener (11) to form an underground solar luminous road stud;

[0087] Alternatively, the protective outer shell (11) is a combined enclosure formed by assembling an annular ring cover (11-1) and a protective bottom shell (11-2) via a fastener (11), and the transparent optical plastic shell (1) is assembled in the combined protective outer shell (11) to form an underground solar luminous road stud with the top of the transparent optical plastic shell (1) exposed from the top of the enclosure.

[0088] Furthermore, a coating protective layer (12) is provided on the outer wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), or a coating protective layer (12) is provided on the outer wall and the outer bottom surface of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), respectively. The coating protective layer (12) can be a reflective coating layer with a scattering reflection function, or a rough sand surface coating layer, or a color-developing coating layer with a specific color, etc.

[0089] Preferably, the bottom diameter R of the transparent optical plastic housing (1) is between 100 mm and 150 mm.

[0090] Or the height H1 of the transparent top (1d) of the transparent optical plastic shell (1) is between 5 mm and 10 mm,

[0091] Or the height H2 of the transparent surrounding wall (1b) of the transparent optical plastic housing (1) is between 30 mm and 55 mm,

[0092] Or the thickness H3 of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is between 5 mm and 15 mm,

[0093] Alternatively, the vertical spacing ΔH4 between the photovoltaic power generation sheet and the inner top surface of the transparent optical plastic shell (1) above it is between 1 mm and 5 mm, or the vertical spacing ΔH5 between the LED central light source group (4) and the inner top surface of the transparent optical plastic shell (1) above it is between 1 mm and 5 mm, or the depth H6 of the median light output groove (4c) is between 5 mm and 10 mm. Since air layers with thicknesses of ΔH4 and ΔH5 are respectively left between the photovoltaic power generation sheet and the inner top surface of the transparent optical plastic shell (1) above it and between the LED central light source group (4) and the inner top surface of the transparent optical plastic shell (1) above it, the photovoltaic power generation sheet and the LED central light source group of the road stud are not easily damaged by shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0094] Furthermore, the control and driving circuit (8) is a control driving circuit having the function of controlling and driving the LED central light source group (4) and the LED brightness enhancement light source (5) to emit light in different light emission modes respectively.

[0095] Or the LED central light source group (4) and the LED brightness enhancement light source (5) are two groups of two-color LEDs or multiple groups of multi-color LEDs.

[0096] Or the LED central light source group (4) and the LED brightness enhancement light source (5) are double-group double-control or multiple-group multi-control LEDs,

[0097] Alternatively, the control and driving circuit (8) is a control and driving circuit having the functions of controlling and driving the LED central light source group (4) to emit light constantly or at a certain period T and duty cycle D, and controlling and driving the LED enhanced light distribution light source (5) to emit light at a certain period T and duty cycle D or to emit light alternately in two or more groups or at a certain time sequence,

[0098] Alternatively, the control and drive circuit (8) is a single-chip control circuit, and the underground solar LED luminous road stud is a controlled luminous underground solar LED luminous road stud whose LED central light source group (4) and LED brightening light distribution light source (5) are controlled by the single-chip control circuit to emit light in a luminous mode corresponding to a preset program of the single-chip control circuit.

[0099] Alternatively, the control and drive circuit (8) is also connected to a wireless device, and the underground solar LED luminous road stud is a wireless controlled luminous underground solar LED luminous road stud with wireless receiving or wireless transceiver function. BRIEF DESCRIPTION OF THE DRAWINGS

[0100] Figure 1 Schematic diagram of the cross-sectional structure principle of the present invention and its luminous optical structure and optical path principle.

[0101] Figure 2 It is a schematic diagram of the cross-sectional structure of the transparent optical housing of the present invention and a schematic diagram of the structural matching of the LED central light source group and the LED light distribution light source group,

[0102] Figure 3 is a schematic diagram of the structure of the A1-A1 cross-sectional view of the first embodiment of the present invention and a schematic diagram of the light-emitting optical structure and the light path thereof,

[0103] Figure 4 Schematic diagram of the top view of the road spike structure of the first embodiment of the present invention.

[0104] Figure 5 is a schematic diagram of the three-dimensional structure of the transparent optical plastic housing after flipping over according to the first embodiment of the present invention,

[0105] Figure 6 Schematic diagram of the A2-A2 cross-sectional structure of the transparent optical plastic housing according to the first embodiment of the present invention,

[0106] Figure 7 This is a schematic diagram of the structure of a road spike in the first embodiment of the present invention when viewed from above.

[0107] Figure 8 This is a schematic diagram of the explosive assembly structure of a spike according to the first embodiment of the present invention.

[0108] Fig. 9 It is a structural schematic diagram of the B1-B1 cross-sectional view of the second embodiment of the present invention and a schematic diagram of its light-emitting optical structure and light path,

[0109] Fig.10 Schematic diagram of the top view of the road spike structure of the second embodiment of the present invention.

[0110] Fig.11 is a schematic diagram of the three-dimensional structure of the transparent optical plastic housing after flipping over according to the second embodiment of the present invention,

[0111] Fig.12 This is a schematic diagram of the structure of a road spike in a second embodiment of the present invention when viewed from above.

[0112] Fig.13 This is a schematic diagram of the explosive assembly structure of a spike according to the second embodiment of the present invention.

[0113] Fig.14 Schematic diagram of the structure of the C1-C1 cross-sectional view of the third embodiment of the present invention and its light emitting optical structure and optical path diagram,

[0114] Fig.15 Schematic diagram of the top view of the road spike structure of the third embodiment of the present invention.

[0115] Fig.16 is a schematic diagram of the three-dimensional structure of the transparent optical plastic housing after flipping over according to the third embodiment of the present invention,

[0116] Fig.17 This is a schematic diagram of the explosive assembly structure of a spike according to the third embodiment of the present invention.

[0117] Fig.18 Schematic diagram of the structure of the D1-D1 cross-sectional view of the fourth embodiment of the present invention and a schematic diagram of the light-emitting optical structure and the light path,

[0118] Fig.19 Schematic diagram of the top view of the road spike structure of the fourth embodiment of the present invention.

[0119] Fig. 20 is a schematic diagram of a three-dimensional structure of a transparent optical plastic shell after being turned over according to the fourth embodiment of the present invention,

[0120] Fig.21 1 is a schematic diagram of the structure of a road spike according to a fourth embodiment of the present invention when viewed from above.

[0121] Fig. 22 This is a schematic diagram of the explosive assembly structure of a railroad spike according to the fourth embodiment of the present invention.

[0122] Fig.23 Schematic diagram of the structure of the E1-E1 cross-sectional view of the fifth embodiment of the present invention and a schematic diagram of the light-emitting optical structure and the light path thereof,

[0123] Fig.24 Schematic diagram of the top view of the road spike structure of the fifth embodiment of the present invention.

[0124] Fig.25 is a schematic diagram of the three-dimensional structure of the transparent optical plastic housing after flipping over according to the fifth embodiment of the present invention,

[0125] Fig.26 Schematic diagram of the E2-E2 cross-sectional structure of the transparent optical plastic housing of the fifth embodiment of the present invention,

[0126] Fig. 27 This is a schematic diagram of the explosive assembly structure of a spike according to the fifth embodiment of the present invention.

[0127] Fig.28 This is a schematic diagram of the explosive assembly structure of a railroad spike according to the fifth embodiment of the present invention. DETAILED DESCRIPTION

[0128] Embodiments of the present invention are described with reference to the accompanying drawings.

[0129] Embodiment 1

[0130] An underground solar-powered luminous plastic housing road stud comprises a transparent optical plastic housing (110), an inner support body (120), a packaging glue curing molding (130), an LED central light source group (140), an LED light distribution light source group (150), a photovoltaic power generation sheet (160), an energy storage element (170), a control and drive circuit (180), a composite bottom housing (190), and a coating protective layer (1120), such as Figure 3-8 shown.

[0131] The transparent optical plastic shell (110) is a bilaterally symmetrical PC injection molded cavity-shaped shell formed by a transparent top (110d) and a transparent surrounding wall (110b) connected to the top and extending downward, and having a accommodating cavity (110q) opening downward.

[0132] The outer contour of the transparent top (110d) is a circular structure (viewed from the top), and the edge of the transparent top (110d) is provided with four convex support bodies (110c) for preventing it from sinking when installed on the road surface. The top surface of the transparent top (110d) is provided with anti-slip convex points (110p).

[0133] The inner top wall of the central part of the transparent top (110d) of the transparent optical plastic shell (110) is provided with an inner (upward) concave middle light outlet groove (140c) adapted to the LED central light source group (140) and corresponding to the front and rear directions of light emission, respectively. The middle light outlet groove (140c) is a light outlet groove with a vertical cross-section similar to an isosceles trapezoidal upward arch. The front and rear light incident surfaces (110r) of the light outlet groove are inclined surfaces, corresponding to the two sides of the isosceles trapezoid, and the front and rear light incident surfaces are inclined surfaces. (110r) matches the angle and thickness of the corresponding front and rear light-emitting surfaces (110m) and the side walls thereof to form a light refraction structure, a light angle deflection structure, and a light upward shifting structure that facilitates the LED central light source group (140) to emit light at a desired assembly angle. The middle light-emitting groove (140c) is provided with a downwardly convex and longitudinally arranged strip convex rib (140j) that can play a structural reinforcement role. The corresponding area on the inner bracket body (120) below the middle light-emitting groove (140c) A lamp board with 6×2 lamp-encapsulated straw-hat-shaped F5-F8 lamp beads with condensing lenses and arranged in parallel in two rows in the left-right direction and tilted forward and backward respectively [the assembly tilt angle (β4) of the central axis is between 5° and 15°] is fixed at a certain height through a pin row bracket (120c) to serve as an LED central light source group (140), and the main light beam of the LED central light source group (140) is matched with the optical structure on the middle light outlet groove (140c) through the central light outlet groove (140c). The light-emitting surface (110m) has a central main optical axis elevation angle (θ4) between 0.5° and 20° and an emission range angle (α4) between 20° and 45° for condensed light emission. The front and rear sides of the LED central light source group (140) are respectively provided with rectangular photovoltaic power generation sheets (160). The edges of the transparent top (110d) on the left and right sides of the transparent optical plastic shell (110) transition from the inside to the outside and from the high to the low to its outer edge in a curved surface.

[0134] The inner top wall corresponding to the edge portion between the front end of the middle light emitting groove (140c) and the transparent surrounding wall (110b) in front of it is also provided with front and rear edge light emitting grooves (150c) that are concave and matched with the LED light distribution light source group (150) that serves as the front and rear edge light distribution light sources. The inner top wall corresponding to the edge portion between the left and right ends of the middle light emitting groove (140c) and the transparent surrounding walls (110b) on its left and right sides is also provided with left and right edge light emitting grooves (150c) that are concave and matched with the LED light distribution light source group (150) that serves as the left and right edge light distribution light sources.

[0135] The front, rear and left and right edge light emitting grooves (150c) are light emitting grooves similar to strips and having an inverted U-shaped vertical cross section. The light emitting surfaces of the front, rear and left and right edge light emitting grooves (150c) can be provided with light divergence grilles (150k) that are conducive to the LED light distribution light source group (150) to emit light with a large emission range angle. The 16 upward-emitting SMD packaged 2835 chip-type lamp beads welded to the lamp board by means of slots and adhesive fixation respectively under the upper convex and lower concave lamp grooves in the corresponding area of ​​the inner bracket body (120) below serve as the front and rear edge LED light distribution light source group (150) (4 in the front and rear) and the left and right edge LED light distribution light source group (150) (4 in the left and right), respectively forming the front and rear light distribution and the left and right light distribution with the LED central light source group (140).

[0136] The outer contour of the transparent surrounding wall (110b) is similar to a circle (petal shape) whose outer periphery is partially convex due to the convex vertical support body 2 (110z-2) when viewed from above, and the inner contour is similar to an octagon when viewed from above. The bottom inner periphery of the transparent surrounding wall (110b) is provided with an inwardly sunken circular embedded structure 1 (110q), and the circular embedded structure 1 (110q) is provided with (multiple circles) of circular hot-melt convex ribs (110h) that match its shape.

[0137] The inner support body (120) is a transparent injection-molded support layer that is compatible with the inner cavity structure of the transparent optical plastic shell (110) and has a pin strip support (120c) in the central part. It is fixed in the accommodating cavity (110q) by means of a stepped positioning structure (110d) and adhesive, and an air layer is formed between the top of the inner support body (120) and the inner top wall of the transparent optical plastic shell (110), so that the vertical spacing ΔH4 between the photovoltaic power generation sheet (160) and the inner top surface of the transparent optical plastic shell (110) above it is controlled to be between 2 mm and 5 mm, and the vertical spacing ΔH5 between the LED central light source group (140) and the inner top surface of the transparent optical plastic shell (110) above it is controlled to be between 1 mm and 4 mm, so that the photovoltaic power generation sheet (160) and the LED central light source group (140) of the road stud are not easily damaged by shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0138] The LED central light source group (140), the LED light distribution light source group (150), the photovoltaic power generation sheet (160), the energy storage element (170) and the control and drive circuit (180) are connected via a circuit. The energy storage element (170) and the control and drive circuit (180) are respectively buried under the inner support body (120). The above components are then fixed in a transparent optical plastic shell (110) using a two-component epoxy resin.

[0139] The composite bottom shell (190) is a bottom cover type injection molded bottom shell with glue injection holes (190k) and outwardly protruding spoke-shaped ribs (190j) (which can make the bottom of the composite shell and the installation glue more firmly bonded to prevent it from rotating). The edge of the composite bottom shell (190) is provided with an upwardly protruding encircling ring-shaped interlocking structure 2 (190q), which is provided with a welding groove (190h) corresponding to the hot-melt convex rib (110h) at the bottom of the transparent surrounding wall (110b). The encircling ring-shaped interlocking structure 2 (190q) of the composite bottom shell (190) is interlocked into the encircling ring-shaped interlocking structure 1 (110q) so that the composite bottom shell (190) is embedded in the bottom inner periphery of the transparent surrounding wall (110b), and is hot-melted and composited with the transparent optical plastic shell (110) through the hot-melt convex rib (110h) and the welding groove (190h) to form a composite shell.

[0140] Then, the encapsulating glue is injected from the injection holes (190k), leveled and cured to form an encapsulating glue cured molding (140) to form a waterproof encapsulating structure. The polyurethane encapsulating glue can be injected, leveled and cured to form a soft glue layer of a certain thickness, and then the epoxy encapsulating glue is injected, leveled and cured to form a hard glue layer of a certain thickness. The soft glue layer has a buffering effect and can withstand a certain deformation, so that the photovoltaic power generation sheet (160) and the circuit board of the road stud are not easily damaged by the shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0141] The outer side surface and the outer bottom surface of the composite shell may be provided with a coating protection layer (1120), such as a reflective coating layer with a scattering reflection function, a rough sand surface coating layer, or a color-developing coating layer with a specific color, etc.

[0142] The control and driving circuit (180) can respectively control the light emitting modes of the LED central light source group (140) and the LED light distribution light source group (150), thereby realizing various controlled light emitting effects such as dual-group dual control, multi-group multi-control, dual-color or multi-color switching of light emitting colors, etc., and can also be connected with wireless devices to realize wireless controlled light emitting functions and intelligent network control functions, thereby forming an intelligent light emitting road stud, which can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians respectively by switching the light emitting modes.

[0143] The underground solar luminous plastic shell road stud of the present invention is buried in the ground (road surface) below the underground reference line during installation. The area that can be set for the photovoltaic power generation sheet is larger than that of existing similar products. The photovoltaic power generation sheet is not easily damaged by the deformation of the shell. It has both a bidirectional LED lighting effect of a small-angle elevation focusing emission of the LED central light source group toward the front and rear, and an LED lighting effect of a wide-angle emission of the front, rear, left and right side LED light distribution light source groups. The side LED light distribution light source groups can perform brightness compensation and angle compensation on the LED main light source, and have a brightening lighting effect. The short-range observation lighting area can be larger, which is beneficial for non-motor vehicle drivers and pedestrians to observe. The long-range lighting sight distance is farther, which is beneficial for motor vehicle drivers to observe. It can adapt to the development trend of an increasing number of roads with mixed pedestrian and vehicle traffic, and is particularly suitable for installation on the road surface of places such as crossroads, intersections, and pedestrian crossings, and is beneficial for intelligent control and multi-functional lighting, and has a higher cost performance and better application prospects.

[0144] Embodiment 2

[0145] An underground solar-powered luminous plastic housing road stud comprises a transparent optical plastic housing (210), an inner support body (220), a packaging glue curing molding (230), an LED central light source group (240), an LED light distribution light source group (250), a photovoltaic power generation sheet (260), an energy storage element (270), a control and driving circuit (280), and a composite bottom housing (290). Figure 9-13 shown.

[0146] The transparent optical plastic shell (210) is a PC injection-molded cavity-shaped shell having a left-right symmetrical shape and is formed by a transparent top (210d) and a transparent surrounding wall (210b) connected to the top and extending downward, and having a accommodating cavity (210q) opening downward.

[0147] The outer contour of the transparent top (210d) is a circular structure (viewed from the top), and the edge of the transparent top (210d) is provided with four convex support bodies (210c) for preventing it from sinking when installed on the road surface. The top surface of the transparent top (210d) is provided with anti-slip convex points (210p).

[0148] The inner top wall of the central part of the transparent top (210d) of the transparent optical plastic shell (210) is provided with an inner (upward) concave middle light outlet groove (240c) adapted to the LED central light source group (240) and corresponding to the front and rear directions of light emission, respectively. The middle light outlet groove (240c) is a light outlet groove with a vertical cross section similar to an isosceles trapezoidal upward arch. The middle light outlet groove (240c) is provided with a downwardly convex and longitudinally arranged strip convex rib (240j) to play a structural reinforcement role. A lamp board of 6×2 lamp-encapsulated straw-hat-shaped F5-F8 lamp beads with condensing lenses, arranged horizontally in two rows in parallel along the left and right directions and facing forward and backward respectively [the assembly elevation angle (β4) of the central axis is about 0°] is fixed at a certain height on the corresponding position on the inner bracket body (220) below the groove (240c) through a pin row bracket (220c) to serve as the LED central light source group (240), wherein the front and rear light incident surfaces (210r) of the light output groove are inclined surfaces, respectively corresponding to the isosceles trapezoid The front and rear light incident surfaces (210r) and the corresponding front and rear light emitting surfaces (210m) and the side walls thereof are matched in angle and thickness to form a light refraction structure, a light angle deflection structure, and a light upward movement structure that facilitates the LED central light source group (240) to emit at a required assembly angle, and the main light beam of the LED central light source group (240) is matched with the optical structure on the middle light emitting groove (240c) through its light emitting surface (210m) with its central main optical axis elevation angle (θ4) between 1° and 15°. The light emitting structure is a light emitting structure that emits light in a concentrated manner at an emission range angle (α4) between 25° and 40°, the front and rear sides of the LED central light source group (240) are respectively provided with arrayed photovoltaic power generation sheets (260), the left and right sides of the LED central light source group (240) are respectively provided with longitudinally arranged rectangular photovoltaic power generation sheets (260), and the edges of the left and right sides of the transparent top (210d) of the transparent optical plastic shell (210) transition from the inside to the outside and from the high to the low to its outer edge in a curved surface.

[0149] The inner top wall corresponding to the corner position of the photovoltaic power generation sheet (260) array is also provided with an inwardly concave corner light emitting groove (250c) adapted to the LED light distribution light source group (250) serving as the front and rear side light distribution light source. The light emitting surface of the corner light emitting groove (250c) can be provided with a light diverging grid (250k) which is beneficial for the LED light distribution light source group (250) to emit light with a large emission range angle. The 16 upwardly emitting SMD packaged 2835 chip-type lamp beads welded to the lamp board by means of slots and adhesive fixed below the upper convex and lower concave lamp grooves corresponding to the transparent inner bracket body (220) below serve as the corner LED light distribution light source group (250), and respectively form a brightening light distribution with the LED center light source group (240).

[0150] The outer contour of the transparent surrounding wall (210b) is similar to a circle (petal shape) whose outer periphery is partially convex due to the convex vertical support body 2 (210z-2) when viewed from above, and the inner contour is similar to an octagon when viewed from above. The bottom inner periphery of the transparent surrounding wall (210b) is provided with an inwardly sunken circular interlocking structure 1 (210q), and the circular interlocking structure 1 (210q) is provided with (multiple circles) of circular hot-melt convex ribs (210h) that match its shape.

[0151] The inner support body (220) is a transparent injection-molded support layer adapted to the inner cavity structure of the transparent optical plastic shell (210), with a pin strip support (220c) in the central part and a convex and concave lamp groove in the edge part. It is fixed in the accommodating cavity (210q) by means of a stepped positioning structure (210d) and adhesive, and an air layer is formed between the top of the inner support body (220) and the inner top wall of the transparent optical plastic shell (210), so that the vertical spacing ΔH4 between the photovoltaic power generation sheet (260) and the inner top surface of the transparent optical plastic shell (210) above it is controlled to be between 2 mm and 5 mm, and the vertical spacing ΔH5 between the LED central light source group (240) and the inner top surface of the transparent optical plastic shell (210) above it is controlled to be between 1 mm and 4 mm, so that the photovoltaic power generation sheet (260) and the LED central light source group (240) of the road stud are not easily damaged by shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0152] The LED central light source group (240), the LED light distribution light source group (250), the photovoltaic power generation sheet (260), the energy storage element (270) and the control and drive circuit (280) are connected via a circuit, and the energy storage element (270) and the control and drive circuit (280) are respectively buried under the inner support body (220), and then the above components are fixed in the transparent optical plastic shell (210) by using a two-component epoxy resin.

[0153] The composite bottom shell (290) is a bottom cover type injection molded bottom shell with a glue injection hole (290k) at the bottom. The edge of the composite bottom shell (290) is provided with an upwardly convex encircling ring-shaped interlocking structure 2 (290q), which is provided with a welding groove (290h) corresponding to the hot-melt convex rib (210h) at the bottom of the transparent surrounding wall (210b). The encircling ring-shaped interlocking structure 2 (290q) of the composite bottom shell (290) is interlocked into the encircling ring-shaped interlocking structure 1 (210q) so that the composite bottom shell (290) is embedded in the bottom inner periphery of the transparent surrounding wall (210b), and is hot-melted and composited with the transparent optical plastic shell (210) through the hot-melt convex rib (210h) and the welding groove (290h) to form a composite shell.

[0154] Then, the encapsulating glue is injected from the injection holes (290k) to be leveled and cured to form an encapsulating glue cured molding (240) to form a waterproof encapsulating structure. The polyurethane encapsulating glue can be injected, leveled and cured to form a soft glue layer of a certain thickness, and then the epoxy encapsulating glue can be injected, leveled and cured to form a hard glue layer of a certain thickness. The soft glue layer has a buffering effect and can withstand a certain deformation, so that the photovoltaic power generation sheet (260) and the circuit board of the road stud are not easily damaged by the shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0155] The outer side of the composite shell may be provided with a coating protective layer, or the outer side and outer bottom of the composite shell may be provided with a coating protective layer, such as a reflective coating layer with scattering reflection function, or a rough sand surface coating layer, or a color-developing coating layer with a specific color, etc.

[0156] The control and driving circuit (280) can respectively control the light emitting modes of the LED central light source group (240) and the LED light distribution light source group (250), thereby realizing various control light emitting effects such as dual-group dual control, multi-group multi-control, dual-color or multi-color switching of light emitting colors, etc., and can also be connected with wireless devices to realize wireless controlled light emitting functions and intelligent network control functions, thereby forming an intelligent light emitting road stud, which can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians respectively by switching the light emitting modes.

[0157] The underground solar luminous plastic shell road stud of the present invention is buried in the ground (road surface) below the underground reference line during installation. The photovoltaic power generation sheet can be set in a larger area than that of existing similar products. The photovoltaic power generation sheet is not easily damaged by shell deformation. It has both a bidirectional LED lighting effect of a small-angle elevation focusing emission of an LED central light source group toward the front and the rear, and an LED lighting effect of an upward wide-angle emission of an angular LED light distribution light source group. The angular LED light distribution light source group can perform brightness compensation and angle compensation on the LED main light source, and has a brightening lighting effect. The short-range observation lighting area can be larger, which is beneficial for non-motor vehicle drivers and pedestrians to observe. The long-range lighting sight distance is farther, which is beneficial for motor vehicle drivers to observe. It can adapt to the development trend of an increasing number of roads with mixed pedestrian and vehicle traffic, and is particularly suitable for installation on the road surface of intersections, crossroads, crosswalks and other places, and is beneficial for intelligent control and multi-functional lighting, and has a higher cost performance and better application prospects.

[0158] Embodiment 3

[0159] An underground solar-powered luminous metal shell road stud comprises a transparent optical plastic shell (310), an inner bracket body (320), a packaging glue solidified molded body (330), an LED central light source group (340), an LED light distribution light source group (350), a photovoltaic power generation sheet (360), an energy storage element (370), a control and drive circuit (380), a composite bottom shell (390), a fastener (3100), an annular ring cover (3110-1), and a protective bottom shell (3110-2), such as Figure 14-17 shown.

[0160] The transparent optical plastic shell (310) is a bilaterally symmetrical PC injection molded cavity-shaped shell formed by a transparent top (310d) and a transparent surrounding wall (310b) connected to the transparent top and extending downward, with a downwardly opening accommodating cavity (310q). The top surface of the transparent top (310d) is provided with anti-slip convex points (310p), and a relatively low pressing portion forming a stepped structure with the transparent top (310d) is provided around the transparent top (310d).

[0161] The transparent top (310d) of the transparent optical plastic shell (310) is provided with an inner top wall at the central part thereof, which is adapted to the LED central light source group (340) and corresponds to the front and rear directions of light emission, and is inwardly (upwardly) concave middle light emitting groove (340c). The middle light emitting groove (340c) is a light emitting groove with a vertical cross section similar to an isosceles trapezoidal arch. The front and rear light incident surfaces (310r) of the light emitting groove are inclined surfaces, which correspond to the two sides of the isosceles trapezoid, respectively. The front and rear light incident surfaces (310r) match the angles and thicknesses of the corresponding front and rear light emitting surfaces (310m) and the side walls thereof, forming a light refraction structure, a light angle deflection structure, and a light upward shifting structure that are beneficial for the LED central light source group (340) to emit light at a desired assembly angle. The middle light emitting groove (340c) is provided with downwardly convex and longitudinally arranged strip convex ribs (340j) to strengthen the structure. A light board of 6×2 lamp-encapsulated straw-hat-shaped F5-F8 lamp beads with condensing lenses, arranged horizontally in two rows in parallel along the left and right directions and facing forward and backward respectively [the assembly elevation angle (β4) of the central axis is about 0°] is fixed at a certain height on the corresponding position of the inner bracket body (320) below the middle light emitting groove (340c) through a pin row bracket (320c) to serve as the LED central light source group (340), and the main light beam of the LED central light source group (340) is matched with the optical structure on the middle light emitting groove (340c) to form a luminous structure in which the main light beam of the LED central light source group (340) is concentrated and emitted through its light emitting surface (310m) with its central main light axis elevation angle (θ4) between 0.5° and 15° and with an emission range angle (α4) between 20° and 40°. The front and rear sides of the LED central light source group (340) are respectively provided with rectangular photovoltaic power generation sheets (360).

[0162] The front end of the middle light emitting groove (340c) and the inner top wall corresponding to the edge portion between the transparent surrounding wall (310b) in front of it are also provided with front and rear edge light emitting grooves (350c) that are concave and matched with the LED light distribution light source group (350) that serves as the front and rear edge light distribution light sources. The left and right ends of the middle light emitting groove (340c) and the inner top wall corresponding to the edge portion between the transparent surrounding walls (310b) on its left and right sides are also provided with left and right edge light emitting grooves (350c) that are concave and matched with the LED light distribution light source group (350) that serves as the left and right edge light distribution light sources.

[0163] The front and rear and left and right edge light emitting grooves (350c) are light emitting grooves with an inverted U-shaped vertical cross section. The light emitting surfaces of the front and rear and left and right edge light emitting grooves (350c) can be provided with light divergence grilles (350k) that are conducive to the LED light distribution light source group (350) emitting light with a large emission range angle. The 8 upward-emitting SMD packaged 2835 chip-type lamp beads welded to the lamp board by means of slots and adhesive respectively serve as the LED light distribution light source group (350) (2 in front and rear, 2 in left and right), respectively forming front and rear light distribution and left and right light distribution with the LED central light source group (340).

[0164] The outer contour of the transparent surrounding wall (310b) is similar to a circle (petal shape) whose outer periphery is partially concave due to the concave vertical support structure 1 (310s-1) when viewed from above. The bottom periphery of the transparent surrounding wall (310b) is provided with a sunken encircling ring-shaped interlocking structure 1 (310q). The encircling ring-shaped interlocking structure 1 (310q) is provided with (multiple circles) of encircling ring-shaped hot-melt convex ribs (310h) that match its shape.

[0165] The inner support body (320) is a transparent injection-molded support layer that is compatible with the inner cavity structure of the transparent optical plastic shell (310) and has a pin strip support (320c) in the central part. It is fixed in the accommodating cavity (310q) by means of a stepped positioning structure (310d) and adhesive, and an air layer is formed between the top of the inner support body (320) and the inner top wall of the transparent optical plastic shell (310), so that the vertical spacing ΔH4 between the photovoltaic power generation sheet (360) and the inner top surface of the transparent optical plastic shell (310) above it is controlled to be between 2 mm and 4 mm, and the vertical spacing ΔH5 between the LED central light source group (340) and the inner top surface of the transparent optical plastic shell (310) above it is controlled to be between 1 mm and 3 mm, so that the photovoltaic power generation sheet (360) and the LED central light source group (340) of the road stud are not easily damaged by shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0166] The LED central light source group (340), the LED light distribution light source group (350), the photovoltaic power generation sheet (360), the energy storage element (370) and the control and drive circuit (380) are connected via a circuit. The energy storage element (370) and the control and drive circuit (380) are respectively buried under the inner support body (320). The above components are then fixed in a transparent optical plastic shell (310) using a two-component epoxy resin.

[0167] The composite bottom shell (390) is a bottom cover type injection molded bottom shell with a glue injection hole (390k) at the bottom. The edge ring of the composite bottom shell (390) is provided with an upwardly convex encircling ring-shaped interlocking structure (320q). The encircling ring of the encircling ring-shaped interlocking structure (320q) is provided with a welding groove (390h) corresponding to the hot-melt convex rib (310h) at the bottom of the transparent surrounding wall (310b). The interlocking structure (320q) of the composite bottom shell (320) is interlocked with the interlocking structure (310q) at the bottom of the transparent surrounding wall (310b) so that the composite bottom shell (320) surrounds the bottom periphery of the transparent surrounding wall (310b), and is hot-melted and composited with the transparent optical plastic shell (310) through the hot-melt convex rib (310h) and the welding groove (390h) to form a composite shell.

[0168] Then, the encapsulating glue is injected from the injection holes (390k) to be leveled and cured to form an encapsulating glue solidified body (340) to form a waterproof encapsulating structure. The polyurethane encapsulating glue can be injected, leveled and cured to form a soft glue layer of a certain thickness, and then the epoxy encapsulating glue is injected, leveled and cured to form a hard glue layer of a certain thickness, thereby forming a waterproof insulating encapsulating liner structure. The soft glue layer has a buffering effect and can withstand a certain deformation, so that the photovoltaic power generation sheet (360) and the circuit board of the road stud are not easily damaged by the shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0169] The waterproof insulating packaging liner structure is embedded in the accommodating cavity of the protective bottom shell (3110-2), and a portion of the bottom surface of the metal annular ring cover (3110-1) with 6 fixing screw holes corresponding to the fixing screw holes on the convex piles in the protective bottom shell (3110-2) is pressed onto the stepped inner ring of the metal protective bottom shell (3110-2) and a portion is pressed onto the pressing portion of the transparent optical plastic shell (310), and a fastening screw is screwed into the fixing screw hole to serve as a fastener (3100), and then silicone glue is dripped on the fastening screw and cured to seal it to serve as a plug, thereby locking the waterproof insulating packaging liner structure in the protective shell formed by assembling the annular ring cover (3110-1) and the protective bottom shell (3110-2).

[0170] The control and driving circuit (380) can respectively control the light emitting modes of the LED central light source group (340) and the LED light distribution light source group (350), and realize various control light emitting effects such as dual-group dual control, multi-group multi-control, dual-color or multi-color switching of light emitting colors, etc., and can also be connected with wireless devices to realize wireless controlled light emitting function and intelligent network control function, forming an intelligent light emitting road stud, which can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians respectively by switching the light emitting mode.

[0171] The underground solar luminous metal shell road stud of the present invention is buried in the ground (road surface) at the part below the underground reference line during installation. The photovoltaic power generation sheet can be set in a larger area than that of existing similar products. The photovoltaic power generation sheet is not easily damaged by shell deformation. It has both a bidirectional LED lighting effect of a small-angle elevation focusing emission of an LED central light source group toward the front and rear, and an LED lighting effect of a wide-angle emission of an LED light source group at the front, rear, left and right side positions. The LED light source group at the side position can perform brightness compensation and angle compensation on the LED main light source, and has a brightening lighting effect. The lighting area for short-range observation can be larger, which is beneficial for non-motor vehicle drivers and pedestrians to observe. The long-range lighting sight distance is farther, which is beneficial for motor vehicle drivers to observe. It can adapt to the development trend of an increasing number of roads with mixed traffic of people and vehicles, and is particularly suitable for installation on the road surface of places such as crossroads, intersections, and pedestrian crossings, and is beneficial for intelligent control and multi-functional lighting, and has a higher cost performance and better application prospects.

[0172] Embodiment 4

[0173] An underground solar-powered luminous plastic housing road stud comprises a transparent optical plastic housing (410), an inner support body (420), a packaging glue curing molding (430), an LED central light source group (440), an LED light distribution light source group (450), a photovoltaic power generation sheet (460), an energy storage element (470), a control and driving circuit (480), and a composite bottom housing (490). Figure 18-22 shown.

[0174] The transparent optical plastic shell (410) is a PC injection-molded cavity-shaped shell having a left-right symmetrical shape and is formed by a transparent top (410d) and a transparent surrounding wall (410b) connected to the top and extending downward, and having a accommodating cavity (410q) opening downward.

[0175] The outer contour of the transparent top (410d) is a circular structure (viewed from the top), and the edge of the transparent top (410d) is provided with four convex support bodies (410c) for preventing it from sinking when installed on the road surface. The top surface of the transparent top (410d) is provided with anti-slip convex points (410p).

[0176] The inner top wall of the central part of the transparent top (410d) of the transparent optical plastic shell (410) is respectively provided with an inner (upward) concave middle light outlet groove (440c) adapted to the LED central light source group (440) and corresponding to the front and rear directions of light emission, the middle light outlet groove (440c) is a light outlet groove with a vertical cross section similar to an isosceles trapezoidal upward arch, and the front and rear light entrance surfaces (410r) of the light outlet groove are inclined surfaces, corresponding to the two sides of the isosceles trapezoid, and the front and rear light entrance surfaces (410r) and the corresponding front and rear The angle and thickness of the light emitting surface (410m) and the side wall on which it is located match to form a light refraction structure, a light angle deflection structure, and a light upward movement structure that are beneficial for the LED central light source group (440) to emit at a required assembly angle. A downwardly hanging strip separator (440g) is provided in the middle light emitting groove (440c), which is similar to a separator rib and can play a role in interval separation and structural reinforcement. The corresponding position on the inner bracket body (420) below the middle light emitting groove (440c) is connected to the inner bracket body (420) at a certain height through a pin strip bracket (420c). A light board with 4×2 lamps in straw hat-shaped F5-F8 lamp beads with condenser lenses and arranged in two rows parallel to each other in the left-right direction and tilted forward and backward respectively [the center axis assembly elevation angle (β4) is between 5° and 15°] serves as an LED center light source group (440), and the main light beam of the LED center light source group (440) is matched with the optical structure on the middle light output groove (440c) through its light output surface (410m) with its central main light axis elevation angle (θ4) between 0.5° and 18° The light emitting structure is configured to emit light in a concentrated manner at an emission range angle (α4) between 22° and 40°. The front and rear sides of the LED central light source group (440) are respectively provided with rectangular photovoltaic power generation sheets (460) arranged in an array. The left and right sides of the LED central light source group (440) are respectively provided with longitudinal rectangular photovoltaic power generation sheets (460). The edges of the left and right sides of the transparent top (410d) of the transparent optical plastic shell (410) transition from the inside to the outside and from the high to the low to its outer edge in a curved surface.

[0177] Eight SMD packaged 2835 patch-type lamp beads that emit light upward are welded on the corners of the photovoltaic power generation sheet (460), corresponding to the corner LED light distribution light source group (450) (two at each corner), and form corner light distribution with the LED central light source group (440).

[0178] The outer contour of the transparent surrounding wall (410b) is similar to a petal shape whose outer periphery is partially convex due to the convex vertical support body 2 (410z-2) when viewed from above, and the inner contour is similar to an octagon when viewed from above. The bottom inner periphery of the transparent surrounding wall (410b) is provided with an inwardly sunken circular embedded structure 1 (410q), and the circular embedded structure 1 (410q) is provided with (multiple circles) of circular hot-melt convex ribs (410h) that are compatible with the shape thereof.

[0179] The inner support body (420) is a transparent injection-molded support layer that is compatible with the inner cavity structure of the transparent optical plastic shell (410) and has a pin strip support (420c) in the central part. It is fixed in the accommodating cavity (410q) by means of a stepped positioning structure (410d) and adhesive, and an air layer is formed between the top of the inner support body (420) and the inner top wall of the transparent optical plastic shell (410), so that the vertical spacing ΔH4 between the photovoltaic power generation sheet (460) and the inner top surface of the transparent optical plastic shell (410) above it is controlled to be between 2 mm and 5 mm, and the vertical spacing ΔH5 between the LED central light source group (440) and the inner top surface of the transparent optical plastic shell (410) above it is controlled to be between 1 mm and 4 mm, so that the photovoltaic power generation sheet (460) and the LED central light source group (440) of the road stud are not easily damaged by shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0180] The LED central light source group (440), the LED light distribution light source group (450), the photovoltaic power generation sheet (460), the energy storage element (470) and the control and drive circuit (480) are connected through a circuit. The energy storage element (470) and the control and drive circuit (480) are respectively buried under the inner support body (420), and then the above components are fixed in the transparent optical plastic shell (410) by using a two-component epoxy resin.

[0181] The composite bottom shell (490) is a bottom cover type injection molded bottom shell with glue injection holes (490k) and outwardly protruding spoke-shaped ribs (490j) (which can make the bottom of the composite shell and the installation glue more firmly bonded to prevent it from rotating). The edge of the composite bottom shell (490) is provided with an upwardly protruding encircling ring-shaped interlocking structure 2 (490q), which is provided with a welding groove (490h) corresponding to the hot-melt convex rib (410h) at the bottom of the transparent surrounding wall (410b). The encircling ring-shaped interlocking structure 2 (490q) of the composite bottom shell (490) is interlocked into the encircling ring-shaped interlocking structure 1 (410q) so that the composite bottom shell (490) is embedded in the bottom inner periphery of the transparent surrounding wall (410b), and is hot-melted and composited with the transparent optical plastic shell (410) through the hot-melt convex rib (410h) and the welding groove (490h) to form a composite shell.

[0182] Then, the encapsulating glue is poured from the glue pouring holes (490k) to be leveled and cured to form an encapsulating glue solidified molding (440) to form a waterproof encapsulating structure. The polyurethane encapsulating glue can be poured, leveled and cured to form a soft glue layer of a certain thickness, and then the epoxy encapsulating glue is poured, leveled and cured to form a hard glue layer of a certain thickness. The soft glue layer has a buffering effect and can withstand a certain deformation, so that the photovoltaic power generation sheet (460) and the circuit board of the road stud are not easily damaged by the shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0183] The outer side of the composite shell may be provided with a coating protective layer, or the outer side and outer bottom of the composite shell may be provided with a coating protective layer, such as a reflective coating layer with scattering reflection function, or a rough sand surface coating layer, or a color-developing coating layer with a specific color, etc.

[0184] The control and driving circuit (480) can respectively control the light emitting modes of the LED central light source group (440) and the LED light distribution light source group (450), realizing various control light emitting effects such as dual-group dual control, multi-group multi-control, dual-color or multi-color switching of light emitting colors, etc., and can also be connected with wireless devices to realize wireless controlled light emitting function and intelligent network control function, forming an intelligent light emitting road stud, which can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians respectively by switching the light emitting mode.

[0185] The underground solar luminous plastic shell road stud of the present invention is buried in the ground (road surface) below the underground reference line during installation. The photovoltaic power generation sheet can be set in a larger area than that of existing similar products. The photovoltaic power generation sheet is not easily damaged by shell deformation. It has both a bidirectional LED lighting effect of a small-angle elevation focusing emission of an LED central light source group toward the front and the rear, and an LED lighting effect of an upward wide-angle emission of an angular LED light distribution light source group. The angular LED light distribution light source group can perform brightness compensation and angle compensation on the LED main light source, and has a brightening lighting effect. The short-range observation lighting area can be larger, which is beneficial for non-motor vehicle drivers and pedestrians to observe. The long-range lighting sight distance is farther, which is beneficial for motor vehicle drivers to observe. It can adapt to the development trend of an increasing number of roads with mixed pedestrian and vehicle traffic, and is particularly suitable for installation on the road surface of intersections, crossroads, crosswalks and other places, and is beneficial for intelligent control and multi-functional lighting, and has a higher cost performance and better application prospects.

[0186] Embodiment 5

[0187] An underground solar-powered luminous metal shell road stud comprises a transparent optical plastic shell (510), an inner bracket body (520), a packaging glue solidified molded body (530), an LED central light source group (540), an LED light distribution light source group (550), a photovoltaic power generation sheet (560), an energy storage element (570), a control and drive circuit (580), a composite bottom shell (590), a fastener (5100), an annular ring cover (5110-1), and a protective bottom shell (5110-2), such as Figure 23-28 shown.

[0188] The transparent optical plastic shell (510) is a bilaterally symmetrical PC injection molded cavity-shaped shell formed by a transparent top (510d) and a transparent surrounding wall (510b) connected to the transparent top and extending downward, with a downwardly opening accommodating cavity (510q); the outer top surface of the transparent top (510d) is provided with anti-slip convex points (510p); the inner top wall is provided with an array of dot-shaped light guide structures (510); a relatively low pressing portion forming a stepped structure with the transparent top (510d) is provided around the transparent top (510d);

[0189] The inner top wall of the central part of the transparent top (510d) of the transparent optical plastic shell (510) is provided with an inner (upward) concave middle light outlet groove (540c) adapted to the LED central light source group (540) and corresponding to the front and rear directions of light emission, respectively. The middle light outlet groove (540c) is a light outlet groove with a vertical cross-section similar to an isosceles trapezoidal arch. The front and rear light incident surfaces (510r) of the light outlet groove are inclined surfaces corresponding to the two sides of the isosceles trapezoid, respectively. The front and rear light incident surfaces (510r) match the angles and thicknesses of the corresponding front and rear light outlet surfaces (510m) and the side walls thereof, so as to facilitate the LED central light source group (540) to be assembled at a desired angle. The structure comprises an outgoing light refraction structure, a light angle deflection structure, and a light upward movement structure. A strip separator (540g) hanging downward is provided in the middle light emitting groove (540c), which is similar to a separator rib and can play a role in partitioning and strengthening the structure. A corresponding area on the inner bracket body (520) below the middle light emitting groove (540c) is fixed at a certain height by a pin strip bracket (520c) with two rows of 4×2 Lamp-encapsulated straw hat-shaped F5-F8 lamp beads with condensing lenses arranged horizontally in the left and right directions respectively [the assembly elevation angle (β4) of the central axis is about 0°], and the lamp board serves as the LED central light source group (540). Fig. 27 As shown, the main light beam of the LED central light source group (540) is matched with the optical structure on the middle light output groove (540c) to form a light emitting structure that emits light through its light output surface (510m) with its central main optical axis elevation angle (θ4) between 1° and 16° and with an output range angle (α4) between 25° and 40°. The LED central light source group (540) can also be fixed to the inner bracket body (520) served by the photovoltaic panel at a certain height through pin welding, as shown in FIG. Fig.28 As shown, the front and rear sides of the LED central light source group (540) are respectively provided with rectangular photovoltaic power generation sheets (560) arranged in an array, and the left and right sides of the LED central light source group (540) are respectively provided with longitudinal rectangular photovoltaic power generation sheets (560).

[0190] Eight SMD packaged 2835 patch-type lamp beads that emit light upward are welded on the corners and left and right outer photovoltaic panels of the photovoltaic power generation sheet (560), and serve as LED light distribution light source groups (550) (one at each corner and two at each left and right), respectively forming corner light distribution and left and right light distribution with the LED central light source group (540).

[0191] The outer contour of the transparent surrounding wall (510b) is similar to a petal shape whose outer periphery is partially concave due to the concave vertical support structure 1 (510s-1) when viewed from above. The bottom periphery of the transparent surrounding wall (510b) is provided with a sunken circular embedded structure 1 (510q). The circular embedded structure 1 (510q) is provided with (multiple circles) of circular hot-melt convex ribs (510h) that match its shape.

[0192] The inner support body (520) is an injection-molded support layer that is compatible with the inner cavity structure of the transparent optical plastic shell (510) and has a pin strip support (520c) in the central part. It is fixed in the accommodating cavity (510q) by means of a stepped positioning structure (510d) and adhesive, and an air layer is formed between the top of the inner support body (520) and the inner top wall of the transparent optical plastic shell (510), so that the photovoltaic power generation sheet (560) and the inner top surface of the transparent optical plastic shell (510) above it are aligned. The vertical spacing ΔH4 is controlled between 2 mm and 4 mm, so that the vertical spacing ΔH5 between the LED central light source group (540) and the inner top surface of the transparent optical plastic shell (510) above it is between 1 mm and 3 mm, so that the photovoltaic power generation sheet (560) of the road stud and the LED central light source group (540) are not easily damaged by shell deformation caused by vehicle rolling or impact, and the product has a longer service life. The inner bracket body (520) can also be played by a circuit board or a photovoltaic panel.

[0193] The LED central light source group (540), the LED light distribution light source group (550), the photovoltaic power generation sheet (560), the energy storage element (570) and the control and drive circuit (580) are connected through a circuit. The energy storage element (570) and the control and drive circuit (580) are respectively buried under the inner support body (520), and then the above components are fixed in the transparent optical plastic shell (510) with a two-component epoxy resin.

[0194] The composite bottom shell (590) is a bottom cover type injection molded bottom shell with a glue injection hole (590k) at the bottom. The edge ring of the composite bottom shell (590) is provided with an upwardly convex encircling ring-shaped interlocking structure 2 (520q). The encircling ring of the encircling ring-shaped interlocking structure 2 (520q) is provided with a welding groove (590h) corresponding to the hot-melt convex rib (510h) at the bottom of the transparent surrounding wall (510b). The interlocking structure 2 (520q) of the composite bottom shell (520) is interlocked with the interlocking structure (510q) at the bottom of the transparent surrounding wall (510b) so that the composite bottom shell (520) surrounds the bottom periphery of the transparent surrounding wall (510b), and is hot-melted and composited with the transparent optical plastic shell (510) through the hot-melt convex rib (510h) and the welding groove (590h) to form a composite shell.

[0195] Then, the encapsulating glue is injected from the injection holes (590k) to be leveled and cured to form an encapsulating glue solidified body (540) to form a waterproof encapsulating structure. The polyurethane encapsulating glue can be injected, leveled and cured to form a soft glue layer of a certain thickness, and then the epoxy encapsulating glue is injected, leveled and cured to form a hard glue layer of a certain thickness, thereby forming a waterproof insulating encapsulating liner structure. The soft glue layer has a buffering effect and can withstand a certain deformation, so that the photovoltaic power generation sheet (560) and the circuit board of the road stud are not easily damaged by the shell deformation caused by vehicle rolling or impact, and the product has a longer service life.

[0196] The waterproof insulating packaging liner structure is embedded in the accommodating cavity of the protective bottom shell (5110-2), and a portion of the bottom surface of the metal annular ring cover (5110-1) with 6 fixing screw holes corresponding to the fixing screw holes on the convex piles in the protective bottom shell (5110-2) is pressed onto the stepped inner ring of the metal protective bottom shell (5110-2) and a portion is pressed onto the pressing portion of the transparent optical plastic shell (510), and a fastening screw is screwed into the fixing screw hole to serve as a fastener (5100), and then silicone glue is dripped on the fastening screw and cured to seal and serve as a plug, thereby locking the waterproof insulating packaging liner structure in the protective shell formed by assembling the annular ring cover (5110-1) and the protective bottom shell (5110-2).

[0197] The control and driving circuit (580) can respectively control the light emitting modes of the LED central light source group (540) and the LED light distribution light source group (550), and realize various control light emitting effects such as dual-group dual control, multi-group multi-control, dual-color or multi-color switching of light emitting colors, etc. It can also be connected with wireless devices to realize wireless controlled light emitting function and intelligent network control function, forming an intelligent light emitting road stud, which can transmit different traffic information to motor vehicles, non-motor vehicles and pedestrians respectively by switching the light emitting mode.

[0198] The underground solar luminous metal shell road stud of the present invention is buried in the ground (road surface) at the part below the underground reference line during installation. The photovoltaic power generation sheet can be set in a larger area than that of existing similar products. The photovoltaic power generation sheet is not easily damaged by shell deformation. It has both a bidirectional LED lighting effect of a small-angle elevation focusing emission of an LED central light source group toward the front and rear, and an LED lighting effect of a wide-angle emission of an LED light source group at the front, rear, left and right side positions. The LED light source group at the side position can perform brightness compensation and angle compensation on the LED main light source, and has a brightening lighting effect. The lighting area for short-range observation can be larger, which is beneficial for non-motor vehicle drivers and pedestrians to observe. The long-range lighting sight distance is farther, which is beneficial for motor vehicle drivers to observe. It can adapt to the development trend of an increasing number of roads with mixed traffic of people and vehicles, and is particularly suitable for installation on the road surface of places such as crossroads, intersections, and pedestrian crossings, and is beneficial for intelligent control and multi-functional lighting, and has a higher cost performance and better application prospects.

[0199] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, variations, combinations, superpositions, equivalent substitutions, etc. made within the spirit and principles of the present invention, or the application of this technology to related and similar technical fields, should be included in the protection scope of the present invention.

Claims

1. An underground solar LED light-emitting road stud, comprising a transparent optical plastic shell (1), an inner support body (2), a packaging glue solidified molded body (3), an LED central light source group (4), a photovoltaic device including a photovoltaic power generation sheet (6), an energy storage element (7), and a control and drive circuit (8); The transparent optical plastic shell (1) is a bilaterally symmetrical cavity-shaped shell having a downwardly opening accommodating cavity (1q) formed by a transparent top (1d) and a transparent surrounding wall (1b) connected thereto and extending downward, wherein: The surface where the outer edge of the transparent top (1d) is located is the buried reference surface of the spike. Features: The transparent top (1d) is provided with a raised portion higher than its buried reference surface at the middle portion along the front-rear direction of the corresponding road stud, and the raised portion and the non-raised portion near the front and rear ends thereof form a high-low transition connection through the light-emitting surface (1m). The inner top wall of the central part of the raised portion is provided with a middle light emitting groove (4c) which is concave and arched upward and is compatible with the LED central light source group (4); the front and rear inner side walls of the middle light emitting groove (4c) which are open downward are provided with light entrance surfaces (1r); a LED central light source group (4) formed by a plurality of LEDs serving as a high-beam light source group is symmetrically provided in or below the middle light emitting groove (4c); a photovoltaic device (6) composed of mosaic-shaped photovoltaic power generation sheets is provided in the front and rear areas or the peripheral areas of the LED central light source group (4); an LED light distribution light source group (5) is symmetrically arranged at intervals on the edges or / and corners of the periphery of the photovoltaic power generation sheets; the LED central light source group (4), the LED light distribution light source group (5), the photovoltaic device (6), the energy storage element (7) and the control and drive circuit (8) are connected by a circuit, wherein the photovoltaic power generation sheets are connected in series or / and in parallel. The inner support body (2) is a support layer adapted to the inner cavity structure of the transparent optical plastic shell (1) and combined in the accommodating cavity (1q); a packaging glue curing molding body (3) is provided below the inner support body (2); the inner support body (2), the LED central light source group (4), the photovoltaic device (6), the energy storage element (7), and the control and drive circuit (8) are encapsulated in the transparent optical plastic shell (1); the energy storage element (7) and the control and drive circuit (8) are respectively arranged in the inner support body (2) or below the inner support body (2); an underground solar LED light-emitting road stud with a waterproof packaging structure is formed in which air layers are respectively provided above the photovoltaic power generation sheet and between the LED central light source group (4) and the inner top surface of the transparent optical plastic shell (1); The assembly elevation angle (β4) of the central axis of the LED of the central LED light source group (4) satisfies: 0°≤β4≤45°, and the angles and thicknesses of the light incident surface (1r), the light exit surface (1m) and the side walls thereof of the central light exit groove (4c) of the LED of the central LED light source group (4) match those of the light incident surface (1r), the light exit surface (1m) and the side walls thereof, so as to form a luminous optical structure in which the central main optical axis elevation angle (θ4) of the exit light (L4) incident from the light incident surface (1r) and then exiting in the front-rear direction through the light exit surface (1m) satisfies: 0°≤θ4<45° and the exit range angle (α4) thereof satisfies: θ4≤α4 / 2, The LED light distribution light source group (5) emits light through the optical structure at the corresponding position of the transparent optical plastic shell (1), and forms an LED light distribution optical structure including but not limited to matching in terms of luminous brightness, matching in terms of luminous angle, and matching in terms of luminous color with the LED central light source group (4).

2. The underground solar LED road stud according to claim 1, characterized in that: An LED central light source group (4) formed by two rows of LEDs arranged in an array in the left-right direction is provided in or below the middle light outlet groove (4c), and rectangular photovoltaic power generation sheets are provided on the front and rear sides of the LED central light source group (4), and LED light distribution light source groups (5) are provided on the front and rear outer sides or / and the left and right outer sides of the photovoltaic power generation sheets, respectively. Alternatively, two groups of LED central light source groups (4) arranged in opposite directions are provided in or below the central light exit groove (4c), rectangular photovoltaic power generation sheets are provided on the front, rear, left, and right sides of the LED central light source group (4), and LED light distribution light source groups (5) are provided on the front, rear, and left outer sides or / and the left and right outer sides of the photovoltaic power generation sheets, respectively. Alternatively, two groups of LED central light source groups (4) arranged in opposite directions are arranged in or below the central light exit groove (4c), and the periphery of the LED central light source group (4) is provided with photovoltaic power generation sheets arranged in a polygonal mosaic pattern around it, and the front and rear outer sides or / and the left and right outer sides of the photovoltaic power generation sheets are respectively provided with LED light distribution light source groups (5), Alternatively, two groups of LED central light source groups (4) arranged back to back are provided in or below the central light exit groove (4c), the outer periphery of the LED central light source group (4) is provided with photovoltaic power generation sheets arranged in a radial mosaic pattern around it, and an LED light distribution light source group (5) is provided between adjacent photovoltaic power generation sheets.

3. The underground solar LED road stud according to claim 1, characterized in that: The LED of the LED central light source group (4) is an LED with a self-contained light-collecting structure, or the LED of the LED central light source group (4) is an F5-F10 lamp bead with a Lamp package and a transparent light-collecting head and pins. Or the LED of the LED central light source group (4) is an LED with a full-angle light emission range of 20° to 60°, or the inner bracket body (2) is provided with a pin-row bracket (2c), and the LED central light source group (4) is fixed on the circuit board via the pin-row bracket (2c); The LED light source group (5) is a SMD packaged LED or a Lamp packaged LED. Alternatively, the LED light distribution light source group (5) is arranged on the inner support body (2) or above the inner support body (2), or the LED light distribution light source group (5) is arranged inside the transparent inner support body (2) or below the transparent inner support body (2), Alternatively, the LED light distribution light source group (5) is arranged on a circuit board layer that serves as an inner support body (2), or the LED light distribution light source group (5) is arranged on a photovoltaic board layer that serves as an inner support body (2).

4. The underground solar LED road stud according to claim 1, characterized in that: The ratio of the luminous intensity (I4) of the LED of the LED central light source group (4) to the luminous intensity (I5) of the LED of the LED light distribution light source group (5) is greater than 2:1, and the LED central light source group (4) and the LED light distribution light source group (5) form a LED light distribution optical structure with different luminous intensities. Alternatively, the LED light distribution light source group (5) matches the optical structure of the corresponding part of the transparent optical plastic shell (1), forming a light emitting optical structure in which the central main light axis elevation angle (θ5) after emitting from the transparent optical plastic shell (1) satisfies: 45°<θ5≤90°, and the LED central light source group (4) and the LED light distribution light source group (5) respectively serve as the high beam light source group and the low beam light source group to form a LED light distribution optical structure matched with different main light emitting angles. Or the emission range angle α2 (α5) of the emitted light (L5) of the LED light distribution light source group (5) after being emitted through the transparent optical plastic shell (1) is greater than or equal to the emission range angle α1 (α4) of the emitted light (L4) emitted from the LED central light source group (4) through the light emitting surface (1m) in the front-rear direction, or the emission range angle α1 (α4) of the emitted light (L4) of the LED central light source group (4) incident from the light incident surface (1r) and then emitted through the light emitting surface (1m) in the front-rear direction satisfies: α4≤60°, the emission range angle α2 (α5) of the emitted light (L5) of the LED light distribution light source group (5) after being emitted through the transparent optical plastic shell (1) satisfies: α5≥120°, and the LED central light source group (4) and the LED light distribution light source group (5) form a LED light distribution optical structure with no luminous dead angle at least in the front-rear direction. Alternatively, the LED central light source group (4) and the LED light distribution light source group (5) respectively include LEDs of different luminous colors, and the LED central light source group (4) and the LED light distribution light source group (5) distribute light to form an LED light distribution optical structure with matching luminous colors. Alternatively, the LED central light source group (4) and the LED light distribution light source group (5) are controlled and driven by a control and driving circuit (8) to emit light at different periods T or duty cycles D respectively, and the LED central light source group (4) and the LED light distribution light source group (5) form a LED light distribution optical structure that matches different light emission modes.

5. The underground solar LED road stud according to claim 1, characterized in that: The assembly elevation angle (β4) of the LED central axis of the LED central light source group (4) is about 0°, and the upper horizontal thickness W1 of the side wall where the light emitting surface (1m) is located is greater than or equal to the lower horizontal thickness W2. Or the assembly elevation angle (β4) of the LED central axis of the LED central light source group (4) is greater than 0°, and the upper oblique thickness W3 of the side wall where the light emitting surface (1m) is located along the assembly elevation angle (β4) is less than or equal to the lower oblique thickness W4, Or the LED central axis of the LED light distribution light source group (5) is installed at an elevation angle of about 90° vertically upward, or the light emitting surface (1m) is an inclined surface, or the light incident surface (1r) is an inclined surface, Or the outer top surface (1a1) of the raised portion is a plane or a slightly arched curved surface, or the inner top surface (1b1) of the raised portion is a plane or a slightly arched curved surface, Or the second outer top surface (1a2) of the non-raised part on both sides of the raised part is a plane, or the second inner top surface (1b2) of the non-raised part on both sides of the raised part is a plane, Alternatively, the left and right ends of the raised portion transition from inside to outside and from high to low through curved surfaces or inclined surfaces to the outer edge of the transparent top (1d).

6. The underground solar LED road stud according to claim 1, characterized in that: The assembly elevation angle (β4) of the central axis of the LED of the central LED light source group (4) satisfies: 0°≤β4≤15°, and the angles and thicknesses of the light incident surface (1r), the light exit surface (1m) and the side walls thereof of the central light exit groove (4c) of the LED of the central LED light source group (4) match those of the light incident surface (1r), the light exit surface (1m) and the side walls thereof, so as to form a luminous optical structure in which the central main optical axis elevation angle (θ4) of the exit light (L4) incident from the light incident surface (1r) and then exiting in the front-rear direction through the light exit surface (1m) satisfies: 0°≤θ4<20° and the exit range angle (α4) thereof satisfies: 20°≤α4≤45°, or The middle light output groove (4c) is a light output groove with an optical structure that is adapted to the LED central light source group (4), facilitates the assembly of the LED central light source group (4) at a desired angle, and has optical structures including but not limited to a light refraction structure, a light reflection structure, a light focusing structure, a light angle deflection structure, and a light upward shifting structure, or the middle light output groove (4c) has a spherical focusing lens on its light entrance surface (1r) or / and light exit surface (1m); Alternatively, the middle light exit groove (4c) is a light exit groove whose vertical cross section is similar to an isosceles trapezoid, and the light incident surfaces (1r) correspond to the two sides of the isosceles trapezoid respectively. Or the middle light emitting groove (4c) is provided with a downward convex strip rib (4j), Alternatively, a downwardly hanging separator (4g) is provided on the inner top surface of the middle light emitting groove (4c), and the separator (4g) divides the middle light emitting groove (4c) into two or more branch light emitting grooves.

7. The underground solar LED road stud according to claim 1, characterized in that: The front and rear outer sides of the photovoltaic power generation sheet are provided with a front and rear edge LED light distribution light source group (5-1), and the inner top wall above the front and rear edge LED light distribution light source group (5-1) is provided with a front and rear edge light outlet groove (5c-1) that is matched with the front and rear edge LED light distribution light source group (5-1). or / and The left and right outer sides of the photovoltaic power generation sheet are provided with left and right edge LED light distribution light source groups (5-2), and the inner top wall above the left and right edge LED light distribution light source groups (5-2) is provided with left and right edge light output grooves (5c-2) that are matched therewith and are concave therewith.

8. The underground solar LED road stud according to claim 7, characterized in that: The emission range angle α2 (α5) of the emitted light (L5) of the LEDs of the front and rear edge LED light distribution light source group 1 (5-1) or / and the left and right edge LED light distribution light source group 2 (5-2) after being emitted through the transparent optical plastic shell (1) and the emission range angle α1 (α4) of the emitted light (L4) of the LEDs of the LED central light source group (4) incident from the light incident surface (1r) and then emitted in the front and rear directions through the light exiting surface (1m) satisfy: α4+α5≥180°, and the light distribution of the two forms an LED light distribution optical structure with no luminous dead angle in the front and rear directions of the corresponding road studs. Or the front and rear edge light outlet groove 1 (5c-1) is a light outlet groove adapted to the front and rear edge LED light distribution light source group 1 (5-1), with a light diffusion optical structure (5k) that is conducive to the front and rear edge LED light distribution light source group 1 (5-1) emitting light with a large emission range angle, the assembly elevation angle of the LED center axis of the front and rear edge LED light distribution light source group 1 (5-1) is about 90° vertically upward, and the front and rear edge LED light distribution light source group 1 (5-1) and the front and rear edge light outlet groove 1 (5c-1) are matched to form a low-beam LED light distribution optical structure, Or the left and right side light outlet grooves 2 (5c-2) are adapted to the left and right side LED light distribution light source groups 2 (5-2), and are light outlet grooves with a light diffusion optical structure (5k) that is conducive to the left and right side LED light distribution light source groups 2 (5-2) emitting light with a large emission range angle, the assembly elevation angle of the LED central axis of the left and right side LED light distribution light source groups 2 (5-2) is about 90° vertically upward, and the left and right side LED light distribution light source groups 2 (5-2) and the left and right side light outlet grooves 2 (5c-2) are matched to form a low-beam LED light distribution optical structure, Or the front and rear edge light emitting grooves 1 (5c-1) and / or the left and right edge light emitting grooves 2 (5c-2) are edge block or edge segment light emitting grooves in the shape of an arch, an arc block or a chord segment, Or the front and rear edge light emitting groove 1 (5c-1) and / or the left and right edge light emitting groove 2 (5c-2) are light emitting grooves with a vertical cross section in a trapezoidal or inverted U shape, Or a second separator (5g) is provided on the inner top surface of the front and rear edge light emitting groove one (5c-1), and the second separator (5g) divides the front and rear edge light emitting groove one (5c-1) into two or more branch light emitting grooves, or / and a second separator (5g) is provided on the inner top surface of the left and right edge light emitting groove two (5c-2), and the second separator (5g) divides the left and right edge light emitting groove two (5c-2) into two or more branch light emitting grooves.

9. The underground solar LED road stud according to claim 8, characterized in that: The light diffusion optical structure (5k) is a light diffusion grid, which is a downward convex V-shaped, U-shaped or inverted trapezoidal convex rib array, or the light diffusion grid is an upward concave groove array.

10. The underground solar LED road stud according to claim 1, characterized in that: The outer edge of the transparent top (1d) of the transparent optical plastic shell (1) is circular. Alternatively, the portion where the transparent surrounding wall (1b) and the transparent top (1d) of the transparent optical plastic shell (1) meet is a circular structure, Or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a circular inner edge structure near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle with a plurality of chord cut edges near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle with a vertical convex structure concave near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a polygonal inner edge structure near the upper edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-polygonal inner edge structure formed by a polygon with a vertical convex structure concave near the upper edge, The transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a circular outer edge structure near the lower edge, or a quasi-circular outer edge structure formed by a circle with a plurality of chord cut edges near the lower edge, or a quasi-circular outer edge structure formed by a circle being concave due to a vertical inward convex structure near the lower edge, or a quasi-circular outer edge structure formed by a circle being convexed by a vertical outward convex structure near the lower edge of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), or a polygonal outer edge structure formed by a polygon being convexed by a vertical outward convex structure near the lower edge of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), or a quasi-polygonal outer edge structure formed by a polygon being convexed by a vertical outward convex structure near the lower edge of the transparent surrounding wall (1b) of the transparent optical plastic shell (1). Or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a circular inner edge structure near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle being cut by a plurality of chordal edges near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-circular inner edge structure formed by a circle being recessed by a vertical inward convex structure near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a polygonal inner edge structure near the lower edge, or the transparent surrounding wall (1b) of the transparent optical plastic shell (1) has a quasi-polygonal inner edge structure formed by a polygon being convexed by a vertical inward convex structure near the lower edge; Alternatively, the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is concave to form a vertical support structure (1s-1), or an inner side wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is provided with a convex vertical support body (1z-1), Alternatively, the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is convex to form a second vertical support structure (1s-2), or a second vertical support body (1z-2) convex to the outside is provided on the outer side wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1); Alternatively, a positioning structure (1d) for assembling the inner support body (2) is further provided on the inner side wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), and the inner support body (2) is fixedly engaged in the accommodating cavity (1q) of the transparent optical plastic shell (1) through the positioning structure (1d). Alternatively, the top edge of the transparent optical plastic shell (1) is also provided with symmetrically arranged convex support bodies (1c), or the four corners of the top edge of the transparent optical plastic shell (1) are respectively provided with convex support bodies (1c), Alternatively, the top surface and / or edge of the transparent optical plastic shell (1) is also provided with a light-guiding structure (1g), or the edge of the top of the transparent optical plastic shell (1) is provided with a striped light-guiding structure (1g), or the top surface and / or edge of the transparent optical plastic shell (1) is also provided with an anti-slip structure (1p).

11. The underground solar LED road stud according to claim 1, characterized in that: Features include: The inner support body (2) is an inner support layer served by a circuit board layer, or the inner support body (5) is an inner support layer served by a photovoltaic panel.

12. The underground solar LED road stud according to claim 1, characterized in that: Features include: The encapsulating glue solidified molding (3) is a single-layer encapsulating glue solidified molding, or a layered encapsulating glue solidified molding. Alternatively, the encapsulation adhesive cured molding (3) is an encapsulation adhesive cured molding for single-time encapsulation, or an encapsulation adhesive cured molding for multiple-time encapsulation; Alternatively, the encapsulating adhesive cured molded body (3) is a double-layer composite encapsulating adhesive cured molded body comprising a soft adhesive layer and a hard adhesive layer, wherein: The encapsulation glue solidified molded body (3) close to the inner support body (2) is a soft glue layer, and the encapsulation glue solidified molded body (3) close to the bottom of the transparent optical plastic shell (1) is a hard glue layer.

13. The underground solar LED road stud according to claim 1, characterized in that: The bottom of the transparent optical plastic shell (1) is combined with a composite bottom shell (9) having glue injection holes (9k) through a composite structure to form a composite shell. The encapsulation glue solidified molding (3) encapsulates the inner support body (2), the LED central light source group (4), the photovoltaic device (6), the energy storage element (7), and the control and drive circuit (8) in the composite shell to form a waterproof and pressure-resistant packaging structure.

14. The underground solar LED road stud according to claim 13, characterized in that: Features include: The bottom of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is provided with a composite structure 1 (1h) for being composited with a composite bottom shell (9); the composite structure 1 (1h) is a hot-melt composite structure, a solvent composite structure, an adhesive composite structure, or two or three thereof; the composite bottom shell (9) is provided with a composite structure 2 (9h) corresponding to the composite structure 1 (1h) and for being composited with the transparent optical plastic shell (1); the composite structure 2 (9h) is a hot-melt composite structure, a solvent composite structure, an adhesive composite structure, or two or three thereof; the composite bottom shell (9) is composited with the composite structure 1 (1h) and the composite structure 2 (9h) at the bottom of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) to form a composite shell; Alternatively, the composite bottom shell (9) is a transparent plastic injection-molded bottom shell having the same or similar material as the transparent optical plastic shell (1), or is a non-transparent plastic injection-molded bottom shell having the same or similar material as the transparent optical plastic shell (1). Alternatively, the bottom of the composite bottom shell (9) has an inner concave or outer convex concave-convex structure (9j).

15. The underground solar LED road stud according to claim 13, characterized in that: A fastening structure (10) including but not limited to fastening screws or fastening bolts is also provided; the transparent surrounding wall (1b) of the transparent optical plastic shell (1) or / and the vertical support body 1 (1z-1) or vertical support body 2 (1z-2) of the transparent optical plastic shell (1) is provided with a fixing hole 1 (1k) adapted to the fastening structure (10); or the composite bottom shell (2) is provided with a fixing hole 2 (9k2) adapted to the fastening structure (10); the transparent optical plastic shell (1) and the composite bottom shell (2) are further assembled and fixed by the fastening structure (10); Alternatively, a hot-melt composite structure is provided on the periphery of the fixing hole 1 (1k) or / and the periphery of the fixing hole 2 (9k2), and the transparent optical plastic shell (1) and the composite bottom shell (9) are composited by the hot-melt composite structure and assembled and fixed by the fastening structure (10). Alternatively, a waterproof packaging structure is provided in the fixing hole one (1k) or / and the fixing hole two (9k2), or a structural adhesive reinforcement structure is provided in the fixing hole one (1k) or / and the fixing hole two (9k2).

16. The underground solar LED road stud according to claim 1, characterized in that: The outer side wall and / or the bottom and / or the top edge of the transparent optical plastic shell (1) is also combined with a protective shell (11), and the protective shell (11) is a protective soft shell with a buffering function, or the protective shell (11) is a protective hard shell with a structural reinforcement function. Alternatively, the protective outer shell (11) is a protective bottom shell (11-1) composed of a side wall and a bottom, and having an upwardly open cavity; the transparent optical plastic shell (1) is also provided with a fixing screw hole (1s) adapted to the fastener (11); the transparent optical plastic shell (1) and the protective bottom shell (11-1) are combined via the fastener (11) to form an underground solar luminous road stud; Alternatively, the protective outer shell (11) is a combined enclosure formed by assembling an annular ring cover (11-1) and a protective bottom shell (11-2) via a fastener (11), and the transparent optical plastic shell (1) is assembled in the combined protective outer shell (11) to form an underground solar luminous road stud with the top of the transparent optical plastic shell (1) exposed from the top of the enclosure.

17. The underground solar LED road stud according to claim 1, characterized in that: A coating protective layer (12) is provided on the outer side wall of the transparent surrounding wall (1b) of the transparent optical plastic shell (1), or a coating protective layer (12) is provided on the outer side wall and the outer bottom surface of the transparent surrounding wall (1b) of the transparent optical plastic shell (1).

18. The underground solar LED road stud according to claim 1, characterized in that: The bottom diameter R of the transparent optical plastic shell (1) is between 100 mm and 150 mm. Or the height H1 of the transparent top (1d) of the transparent optical plastic shell (1) is between 5 mm and 10 mm, or the height H2 of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is between 30 mm and 55 mm, or the thickness H3 of the transparent surrounding wall (1b) of the transparent optical plastic shell (1) is between 5 mm and 15 mm, or the vertical spacing ΔH4 between the photovoltaic power generation sheet and the inner top surface of the transparent optical plastic shell (1) above it is between 1 mm and 4 mm, or the vertical spacing ΔH5 between the LED central light source group (4) and the inner top surface of the transparent optical plastic shell (1) above it is between 1 mm and 4 mm, or the depth H6 of the median light output groove (4c) is between 5 mm and 10 mm.

19. The underground solar LED road stud according to claim 1, characterized in that: The control and driving circuit (8) is a control driving circuit having the function of controlling and driving the LED central light source group (4) and the LED brightness enhancement light source (5) to emit light in different light emission modes. Or the LED central light source group (4) and the LED brightness enhancement light source (5) are two groups of two-color LEDs or multiple groups of multi-color LEDs. Or the LED central light source group (4) and the LED brightness enhancement light source (5) are double-group double-control or multiple-group multi-control LEDs, Alternatively, the control and driving circuit (8) is a control and driving circuit having the functions of controlling and driving the LED central light source group (4) to emit light constantly or at a certain period T and duty cycle D, and controlling and driving the LED enhanced light distribution light source (5) to emit light at a certain period T and duty cycle D or to emit light alternately in two or more groups or at a certain time sequence, Alternatively, the control and drive circuit (8) is a single-chip control circuit, and the underground solar LED light-emitting road stud is a controlled light-emitting underground solar LED light-emitting road stud whose LED central light source group (4) and LED brightening light distribution light source (5) are controlled by the single-chip control circuit to emit light in a light-emitting mode corresponding to a preset program of the single-chip, or the control and drive circuit (8) is further connected to a wireless device, and the underground solar LED light-emitting road stud is a wireless controlled light-emitting underground solar LED light-emitting road stud with a wireless receiving or wireless transceiver function.

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