Road lighting device

Abstract

The utility model provides a road lighting device, the road lighting device includes: mounting base, photovoltaic subassembly, drive subassembly, cooling subassembly, electricity storage subassembly and lighting piece, mounting base is connected with lamp post, photovoltaic subassembly is located above mounting base, photovoltaic subassembly includes photovoltaic panel, the photovoltaic panel is arranged towards the direction of sunshine irradiation, the drive subassembly is connected with the drive subassembly, the cooling subassembly is connected with the electricity storage subassembly, and the lighting piece is connected with the drive subassembly. The driving assembly is mounted on the mounting seat, the driving assembly is connected with the photovoltaic panel to drive the photovoltaic panel to rotate, the cooling assembly is connected with the mounting seat to cool the photovoltaic panel, the power storage assembly is mounted on the mounting seat, the power storage assembly is connected with the photovoltaic assembly to store electric energy generated by the photovoltaic assembly, and the power storage assembly is connected with the cooling fan to cool the photovoltaic panel. And the illuminating part is connected with the mounting seat, is positioned below the mounting seat, is connected with the electric power storage assembly, and is used for illuminating by utilizing the electric power of the electric power storage assembly. The road lighting device has the advantages of being good in cooling effect and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, and in particular to a road lighting device. Background Art

[0002] The factory gate and roof lighting are powered by incandescent lamps, which have high electricity costs and serious aging of the lines, resulting in long periods of lighting failures. In addition, the power lines connecting the lamps are routed in concealed tubes and are not easy to replace.

[0003] In the related technology, solar lighting is used instead of incandescent lighting. Although it solves the problem of wiring power lines in concealed tubes, the temperature of the photovoltaic panels themselves increases during long-term use, which has an adverse effect on their performance and lifespan and may even cause damage, increasing the cost of repair and replacement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the utility model provides a road lighting device, which has good cooling effect and long service life.

[0005] The road lighting device of the utility model embodiment comprises:

[0006] A mounting seat connected to the lamp pole;

[0007] A photovoltaic assembly, the photovoltaic assembly is located above the mounting seat, the photovoltaic assembly includes a photovoltaic panel, and the photovoltaic panel is arranged in a direction facing sunlight;

[0008] A driving assembly, wherein the driving assembly is mounted on the mounting seat and connected to the photovoltaic panel to drive the photovoltaic panel to rotate;

[0009] A cooling component, the cooling component is connected to the mounting seat, the cooling component comprises a cooling fan and a cooling pipe, the air outlet of the cooling fan is arranged toward the photovoltaic panel, the first end of the cooling pipe passes through the mounting seat and is arranged adjacent to the photovoltaic panel, and the second end of the cooling pipe is located below the mounting seat;

[0010] A power storage component, the power storage component is mounted on the mounting seat, the power storage component is connected to the photovoltaic component to store the electric energy generated by the photovoltaic component, and the power storage component is connected to the cooling fan to provide the electric energy required by the cooling fan;

[0011] A lighting component is connected to the mounting base and is located below the mounting base. The lighting component is connected to the power storage component to utilize the electric energy of the power storage component for lighting.

[0012] The road lighting device of the embodiment of the utility model can utilize the driving component to drive the photovoltaic panel to rotate, so that the photovoltaic panel can continuously receive direct sunlight, and when used for a long time, the cooling fan is started to blow air to the photovoltaic component, thereby accelerating the flow of air near the photovoltaic panel, improving the heat exchange efficiency between the photovoltaic panel and the air, and thus reducing the temperature of the photovoltaic panel. In addition, under the blowing action of the cooling fan, the temperature of the upper port of the cooling pipe is lower than the temperature of the lower port of the cooling pipe. Therefore, a certain flow rate is formed in the cooling pipe and blows toward the photovoltaic panel, further intensifying the flow of air near the photovoltaic panel, while sharing the cooling function with the cooling fan, it also reduces the power consumption of the storage component, thereby increasing the service life of the road lighting device of the embodiment of the utility model.

[0013] In some embodiments, the driving assembly further includes a driving base, the driving base being movable between a first position and a second position, wherein in the first position, the driving base abuts against the first end of the cooling pipe to block the cooling pipe, and in the second position, the driving base is disengaged from the first end of the cooling pipe so that the first end of the cooling pipe is connected to the second end of the cooling pipe;

[0014] The driving assembly includes a first driving member and a second driving member, both of which are connected to the driving base, and the first driving member is used to drive the driving base to move in the up and down directions.

[0015] The second driving member is used to drive the driving base to rotate around a first direction and a second direction, wherein the first direction is orthogonal to the second direction.

[0016] In some embodiments, the driving base includes a first shaft, a second shaft, a fixed portion and an annular portion, the fixed portion is connected to the first driving member, the first shaft is connected to the fixed portion, the second shaft is connected to the first shaft, the annular portion is connected to the second shaft, the first driving member is connected to the fixed portion, and the second driving member is connected to the annular portion.

[0017] In some embodiments, the second driving member is connected to the annular portion and the mounting seat via a ball joint structure.

[0018] In some embodiments, the driving base further includes a plugging head, a first end of the plugging head is connected to the annular portion, and a second end of the plugging head abuts against the first end of the cooling pipe at the first position.

[0019] In some embodiments, the cross-sectional area of ​​the plugging head gradually decreases from top to bottom.

[0020] In some embodiments, the cooling pipe includes a connected main body section and a flared section, the flared section is located above the main body section and arranged adjacent to the plugging head, the cross-sectional area of ​​the flared section gradually decreases in a top-down direction, and in the first position, the plugging head is adapted to the flared section.

[0021] In some embodiments, there are a plurality of cooling tubes, and the plurality of cooling tubes are arranged at intervals along the circumference of the first driving member. There are a plurality of sealing heads, and the plurality of sealing heads correspond one-to-one to the plurality of cooling tubes.

[0022] In some embodiments, the photovoltaic assembly further includes a cooling fin, wherein the cooling fin is connected to the photovoltaic panel, and the cooling fin is located on a side of the photovoltaic panel adjacent to the base.

[0023] In some embodiments, there are multiple cooling fins, and the multiple cooling fins correspond one-to-one to the multiple cooling tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a road lighting device according to an embodiment of the utility model.

[0025] Figure 2 It is a schematic structural diagram of a road lighting device (with hidden photovoltaic components) according to an embodiment of the utility model.

[0026] Figure 3 It is a schematic structural diagram of a road lighting device according to an embodiment of the utility model.

[0027] Figure 4 It is a partial structural schematic diagram of a road lighting device according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1. Mounting seat,

[0030] 2. Photovoltaic module, 21. Photovoltaic panel, 22. Cooling fin,

[0031] 3. driving assembly, 31. driving base, 311. first shaft, 312. second shaft, 313. fixing part, 314. annular part, 32. first driving member, 33. second driving member, 34. plugging head,

[0032] 4. Cooling component, 41. Cooling pipe, 411. Main body section, 412. Expanding section, 42. Cooling fan,

[0033] 5. Lighting parts. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0035] like Figure 1-Figure 4 As shown, the road lighting device of the embodiment of the utility model includes: a mounting base 1, a photovoltaic component 2, a driving component 3, a cooling component 4, a power storage component (not shown in the figure) and a lighting component 5.

[0036] The mounting seat 1 is connected to a lamp pole (not shown in the figure). The photovoltaic assembly 2 is located above the mounting seat 1, and the photovoltaic assembly 2 includes a photovoltaic panel 21, and the photovoltaic panel 21 is arranged in the direction of sunlight. The driving assembly 3 is installed on the mounting seat 1, and the driving assembly 3 is connected to the photovoltaic panel 21 to drive the photovoltaic panel 21 to rotate. The cooling assembly 4 is connected to the mounting seat 1, and the cooling assembly 4 includes a cooling fan 42 and a cooling pipe 41, and the air outlet of the cooling fan 42 is arranged toward the photovoltaic panel 21, the first end of the cooling pipe 41 passes through the mounting seat 1 and is arranged adjacent to the photovoltaic panel 21, and the second end of the cooling pipe 41 is located below the mounting seat 1. The power storage assembly is connected to the mounting seat 1, and the power storage assembly is connected to the photovoltaic assembly 2 to store the electric energy generated by the photovoltaic assembly 2. The lighting component 5 is connected to the mounting seat 1 and is located below the mounting seat 1, and the lighting component 5 is connected to the power storage assembly to use the electric energy of the power storage assembly for lighting.

[0037] Specifically, Figure 1-Figure 3 As shown, the photovoltaic assembly 2 is mounted on the mounting base 1 through the driving assembly 3, so that the driving assembly 3 can drive the photovoltaic assembly 2 to rotate (the rotation includes rotation toward the sun and movement of the photovoltaic assembly 2 in the up and down directions). The cooling fan 42, the lighting component 5 and the photovoltaic panel 21 are all electrically connected to the storage component, so that the storage component can store the electric energy converted by the photovoltaic assembly 2, and can use this part of the electric energy for the cooling fan 42 and the lighting component 5.

[0038] It is understandable that if Figure 1-Figure 3 As shown, when in use, the driving assembly 3 is first used to drive the photovoltaic assembly 2 to rotate so that the photovoltaic assembly 2 can fully absorb sunlight. When the temperature of the photovoltaic assembly 2 itself rises, the cooling fan 42 is started so that the cooling fan 42 blows air toward the photovoltaic assembly 2 to cool down the photovoltaic assembly 2. At this time, due to the cooling of the cooling fan 42, there is a temperature difference between the upper and lower ends of the cooling pipe 41 (that is, the temperature of the upper port of the cooling pipe 41 is lower than the temperature of the lower port of the cooling pipe 41). Therefore, the fluid molecules at the high-temperature end of the cooling pipe 41 will obtain higher kinetic energy, causing them to collide more frequently and transfer heat. These collisions will push the fluid from the high-temperature end to the low-temperature end, forming the so-called thermal convection, further accelerating the air flow speed at the upper port of the cooling pipe 41, and further improving the heat exchange efficiency between the photovoltaic assembly 2 and the surrounding air.

[0039] It should be noted that the lighting element 5 may be an LED lighting lamp, which is highly efficient and energy-saving and has a long service life compared to an incandescent lamp.

[0040] In other words, the road lighting device of the embodiment of the utility model can utilize the driving component 3 to drive the photovoltaic panel 21 to rotate, so that the photovoltaic panel 21 can continuously receive direct sunlight, and when used for a long time, the cooling fan 42 is started to blow air to the photovoltaic component 2, thereby accelerating the flow of air near the photovoltaic panel 21, and improving the heat exchange efficiency between the photovoltaic panel 21 and the air, thereby reducing the temperature of the photovoltaic panel 21. In addition, under the blowing action of the cooling fan 42, the upper port temperature of the cooling pipe 41 is lower than the lower port temperature of the cooling pipe 41. Therefore, a certain flow rate is formed in the cooling pipe 41 and blown toward the photovoltaic panel 21, further intensifying the flow of air near the photovoltaic panel 21, while sharing the cooling function with the cooling fan 42, it also reduces the power consumption of the storage component, thereby increasing the service life of the road lighting device of the embodiment of the utility model.

[0041] In some embodiments, the driving assembly 3 further includes a driving base 31, and the driving base 31 is movable between a first position and a second position. In the first position, the driving base 31 abuts against the first end of the cooling tube 41 to block the cooling tube 41. In the second position, the driving base 31 is disengaged from the first end of the cooling tube 41 so that the first end of the cooling tube 41 is connected to the second end of the cooling tube 41. The driving assembly 3 includes a first driving member 32 and a second driving member 33, both of which are connected to the driving base 31. The first driving member 32 is used to drive the driving base 31 to move in the up and down directions, and the second driving member 33 is used to drive the driving base 31 to rotate around the first direction and the second direction, wherein the first direction is orthogonal to the second direction.

[0042] Specifically, Figure 1-Figure 3 As shown, the lower end of the first driving member 32 is fixedly connected to the mounting base 1, and the upper end of the first driving member 32 is connected to the driving base 31. The upper end of the first driving member 32 is movable in the up and down direction so as to drive the driving base 31 to move. The second driving member 33 includes a first driving part and a second driving part, wherein the first driving part is used to drive the driving base 31 to rotate around the first direction, and the second driving part is used to drive the driving base 31 to rotate around the second direction.

[0043] It is understandable that the first driving member 32 and the second driving member 33 can be a cylinder, an oil cylinder or other devices with a linear reciprocating function. In addition, when the second driving member 33 drives the driving base 31 to rotate, the second driving member 33 can rotate relative to the driving base 31, so as to realize driving the driving base 31 to rotate around the first direction and the second direction.

[0044] In some embodiments, the driving base 31 includes a first shaft 311, a second shaft 312, a fixing portion 313 and an annular portion 314, the fixing portion 313 is connected to the first driving member 32, the first shaft 311 is connected to the fixing portion 313, the second shaft 312 is connected to the first shaft 311, the annular portion 314 is connected to the second shaft 312, the first driving member 32 is connected to the fixing portion 313, and the second driving member 33 is connected to the annular portion 314.

[0045] Specifically, Figure 1-Figure 3 As shown, the middle part of the first shaft 311 is connected to the middle part of the second shaft 312 in a cross shape, and the two ends of the first shaft 311 are connected to the fixed part 313, and the first shaft 311 is rotatable relative to the fixed part 313, that is, the two ends of the first shaft 311 are connected to the fixed part 313 after the bearings are installed. The fixed part 313 is connected to the upper end of the first driving member 32, so that the first driving member 32 can drive the fixed member to move in the up and down direction when it is started. The two ends of the second shaft 312 are connected to the annular member, and the second shaft 312 is rotatable relative to the annular part 314, that is, the two ends of the second shaft 312 are connected to the annular part 314 after the bearings are installed.

[0046] It can be understood that the annular portion 314 is a square annular shape, the upper end of the first driving portion is connected to one side of the annular portion 314, and the connection between the first driving portion and the annular portion 314 is located on the axis of the first shaft 311. The upper end of the second driving portion is connected to the other side of the annular portion 314, and the connection between the second driving portion and the annular portion 314 is located on the axis of the second shaft 312. Therefore, when the first driving portion is started, the annular portion 314 can be driven to rotate around the axis of the second shaft 312; when the second driving portion is started, the annular portion 314 can be driven to rotate around the axis of the first shaft 311. In other words, the axis of the first shaft 311 extends in the second direction, and the axis of the second shaft 312 extends in the first direction.

[0047] In some embodiments, the driving base 31 further includes a plugging head 34 , a first end of the plugging head 34 is connected to the annular portion 314 , and a second end of the plugging head 34 abuts against a first end of the cooling pipe 41 at a first position.

[0048] Specifically, Figure 1-Figure 4 As shown, the upper end of the plugging head 34 is connected to the annular portion 314 , and the lower end of the plugging head 34 is arranged adjacent to the upper end of the cooling pipe 41 , and in the first position, the lower end of the plugging head 34 is used to block the upper end port of the cooling pipe 41 to prevent external impurities from entering the cooling pipe 41 .

[0049] It is understandable that the blocking head 34 can be made of a soft rubber material, so that when the driving base 31 moves from the second position to the first position, the deformation characteristics of the rubber material can be used to better block the cooling pipe 41.

[0050] Preferably, the cross-sectional area of ​​the plugging head 34 gradually decreases from top to bottom. Figure 1-Figure 4 As shown, the longitudinal section of the plugging head 34 is substantially semicircular, so that when the driving base 31 is in the first position, the lower end portion of the plugging head 34 can be placed in the upper end port of the cooling pipe 41, thereby ensuring the sealing effect.

[0051] Optionally, the cooling pipe 41 includes a connected main body section 411 and a flared section 412, the flared section 412 is located above the main body section 411 and arranged adjacent to the plugging head 34, the cross-sectional area of ​​the flared section 412 gradually decreases from top to bottom, and in the first position, the plugging head 34 is adapted to the flared section 412.

[0052] Specifically, Figure 1-Figure 4 As shown, the flared section 412 is located above the main section 411 , the driving base 31 is located at the first position, and the lower end of the plugging head 34 is placed in the flared section 412 to achieve the function of plugging the cooling pipe 41 .

[0053] It can be understood that when the driving assembly 3 is used to control the movement or rotation of the driving base 31, the movement or rotation angle of the driving base 31 is easily affected by the external environment, and since the cross-sectional area of ​​the flared section 412 gradually decreases from top to bottom, the sealing head 34 is more likely to contact the side wall of the flared section 412, thereby achieving sealing.

[0054] Preferably, there are multiple cooling tubes 41, which are arranged at intervals along the circumference of the first driving member 32, and there are multiple plugging heads 34, which correspond to the multiple cooling tubes 41 one by one. Figure 1-Figure 3 As shown, the road lighting device of the utility model embodiment can be provided with different numbers of cooling tubes 41 according to actual working conditions, so as to increase the air flow rate near the photovoltaic component 2, and accordingly, reduce the consumption of the cooling fan 42 to ensure the overall power of the power storage component.

[0055] In some embodiments, the photovoltaic assembly 2 further includes a cooling fin 22 , which is connected to the photovoltaic panel 21 , and the cooling fin 22 is located on a side of the photovoltaic panel 21 adjacent to the base.

[0056] It is understandable that if Figure 1-Figure 3 As shown, the cooling fins 22 are installed on the bottom surface of the photovoltaic panel 21, and the cooling fins 22 are in direct contact with the photovoltaic panel 21, which can improve the heat exchange between the photovoltaic panel 21 and the cooling fins 22. Therefore, when the cooling fan 42 and the cooling pipe 41 are used to blow air to the photovoltaic panel 21, the air flow in the gap between the cooling fins 22 is accelerated, thereby increasing the heat exchange efficiency between the air and the cooling fins 22, so as to achieve cooling of the photovoltaic panel 21.

[0057] Preferably, there are multiple cooling fins 22, and the multiple cooling fins 22 correspond to the multiple cooling tubes 41 one by one. It can be understood that there are multiple cooling fins 22 and cooling tubes 41 and they correspond one by one. When the driving base 31 is in the second position, the cooling tube 41 blows air toward the cooling fins 22, so that the flowing gas flows in the gaps between the cooling fins 22, thereby achieving heat exchange between the air and the cooling fins 22. In addition, since the plugging head 34 is hemispherical, the plugging head 34 located on the upper port of the cooling tube 41 can also play a role in disturbing the flow, that is, the airflow blown from the cooling tube 41 to the cooling fins 22 is first blocked by the plugging head 34, so that the airflow flows toward the cooling fins 22 in a dispersed manner, increasing the contact area between the flowing air and the cooling fins 22, thereby improving the heat exchange effect.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A road lighting device, characterized in that: include: A mounting seat connected to the lamp pole; A photovoltaic assembly, the photovoltaic assembly is located above the mounting seat, the photovoltaic assembly includes a photovoltaic panel, and the photovoltaic panel is arranged in a direction facing sunlight; A driving assembly, wherein the driving assembly is mounted on the mounting seat and connected to the photovoltaic panel to drive the photovoltaic panel to rotate; A cooling component, the cooling component is connected to the mounting seat, the cooling component comprises a cooling fan and a cooling pipe, the air outlet of the cooling fan is arranged toward the photovoltaic panel, the first end of the cooling pipe passes through the mounting seat and is arranged adjacent to the photovoltaic panel, and the second end of the cooling pipe is located below the mounting seat; A power storage component, the power storage component is mounted on the mounting seat, the power storage component is connected to the photovoltaic component to store the electric energy generated by the photovoltaic component, and the power storage component is connected to the cooling fan to provide the electric energy required by the cooling fan; A lighting component is connected to the mounting base and is located below the mounting base. The lighting component is connected to the power storage component to utilize the electric energy of the power storage component for lighting.

2. The road lighting device according to claim 1, characterized in that: The driving assembly further includes a driving base, the driving base being movable between a first position and a second position, wherein in the first position, the driving base abuts against the first end of the cooling pipe to block the cooling pipe, and in the second position, the driving base is disengaged from the first end of the cooling pipe so that the first end of the cooling pipe is connected to the second end of the cooling pipe; The driving assembly includes a first driving member and a second driving member, both of which are connected to the driving base, and the first driving member is used to drive the driving base to move in the up and down directions. The second driving member is used to drive the driving base to rotate around a first direction and a second direction, wherein the first direction is orthogonal to the second direction.

3. The road lighting device according to claim 2, characterized in that: The driving base includes a first shaft, a second shaft, a fixed portion and an annular portion, the fixed portion is connected to the first driving member, the first shaft is connected to the fixed portion, the second shaft is connected to the first shaft, the annular portion is connected to the second shaft, the first driving member is connected to the fixed portion, and the second driving member is connected to the annular portion.

4. The road lighting device according to claim 3, characterized in that: The second driving member is connected to the annular portion and the mounting seat via a ball joint structure.

5. The road lighting device according to claim 4, characterized in that: The driving base further comprises a plugging head, a first end of which is connected to the annular portion, and a second end of which abuts against the first end of the cooling pipe at the first position.

6. The road lighting device according to claim 5, characterized in that: The cross-sectional area of ​​the plugging head gradually decreases from top to bottom.

7. The road lighting device according to claim 6, characterized in that: The cooling pipe includes a connected main body section and a flared section, wherein the flared section is located above the main body section and is arranged adjacent to the plugging head, a cross-sectional area of ​​the flared section gradually decreases from top to bottom, and in the first position, the plugging head is adapted to the flared section.

8. The road lighting device according to claim 7, characterized in that: There are a plurality of cooling tubes, and the plurality of cooling tubes are arranged at intervals along the circumferential direction of the first driving member. There are a plurality of plugging heads, and the plurality of plugging heads correspond one-to-one to the plurality of cooling tubes.

9. The road lighting device according to claim 8, characterized in that: The photovoltaic assembly further comprises a cooling fin plate, wherein the cooling fin plate is connected to the photovoltaic panel and is located at a side of the photovoltaic panel adjacent to the base.

10. The road lighting device according to claim 9, characterized in that: There are a plurality of cooling fins, and the plurality of cooling fins correspond one-to-one to the plurality of cooling tubes.

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