CN215844359U - Road and bridge engineering photovoltaic board cleaning device - Google Patents
Road and bridge engineering photovoltaic board cleaning device Download PDFInfo
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- CN215844359U CN215844359U CN202121461473.3U CN202121461473U CN215844359U CN 215844359 U CN215844359 U CN 215844359U CN 202121461473 U CN202121461473 U CN 202121461473U CN 215844359 U CN215844359 U CN 215844359U
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- 238000004140 cleaning Methods 0.000 title claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000005485 electric heating Methods 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003749 cleanliness Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Photovoltaic Devices (AREA)
- Cleaning In General (AREA)
Abstract
The utility model belongs to the field of photovoltaic panels, and particularly relates to a cleaning device for a photovoltaic panel of a road and bridge engineering. According to the cleaning device, the guide rail, the driving motor, the threaded rod, the moving block and the cleaning box are arranged, the driving motor drives the threaded rod to rotate, the sliding block is driven to drive the moving block to move, the moving block drives the cleaning box to cling to the surface of the photovoltaic plate to move, the cleaning roller cleans stains on the surface of the photovoltaic plate, in the rotating process of the cleaning roller, the brush can sweep away stains adsorbed on the surface of the cleaning roller, and when the brush cleans the stains on the cleaning roller, the dust collection fan can adsorb the stains cleaned by the brush into the collection box to be stored, so that secondary pollution is avoided, the cleanliness of the cleaning roller is increased, and the cleaning effect is better; and in the removal of cleaning roller, the cloth that absorbs water can adsorb the cleaning fluid to remaining water stain can be dried through the electric heating wire of cleaning roller inner chamber, makes the clearance more thorough.
Description
Technical Field
The utility model relates to the field of photovoltaic panels, in particular to a cleaning device for a photovoltaic panel of a road and bridge engineering.
Background
The photovoltaic panel is a photovoltaic effect which is exposed to the sun and utilizes a solar cell semiconductor material, and a device which directly converts solar radiation energy into electric energy is provided.
Through retrieval publication (announcement) No. CN211100286U discloses a photovoltaic board cleaning device, relates to building structure technical field, this photovoltaic board cleaning device, including the mount, the one end fixedly connected with electric telescopic handle of mount, the one end fixed connection support frame that the protection slide is close to the mounting bracket, the clean scraper blade of the one end fixedly connected with of protection slide is kept away from to the support frame, the one end fixedly connected with conveying hose of support frame, conveying hose keeps away from the one end fixedly connected with pipeline of support frame. This photovoltaic board cleaning device carries water through pipeline and gets into the conveying hose, carries water into the support frame through conveying hose, makes water fall to the surface of photovoltaic board through the cavity of support frame, simultaneously, through electric telescopic handle, makes electric telescopic handle pass through the mount and drive the protection slide and slide, makes the protection slide pass through the support frame and drives the surperficial slip of cleaning blade along the photovoltaic board, makes the cleaning blade clean the photovoltaic board, has improved clear efficiency.
However, the inventor finds that the technical scheme still has at least the following defects:
firstly, when the cleaning scraper is used for cleaning the photovoltaic panel, dirt and impurities are attached to the surface of the cleaning scraper after long-term use, and then the photovoltaic panel is scraped more and more dirty when being cleaned in a sliding manner, so that dirt marks are left;
second, this technical scheme only can not clear up remaining water stain in surface with the scraper blade after to photovoltaic board washing, treats that photovoltaic board dries by oneself and can form water stain, causes miniature shadow to shelter from, influences the normal use of photovoltaic board.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cleaning device for a photovoltaic panel of a road and bridge engineering, which solves the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a road and bridge engineering photovoltaic panel cleaning device comprises a photovoltaic panel, guide rails and a cleaning box, wherein the top of the photovoltaic panel is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a water storage tank, both sides of the bottom of the water storage tank are communicated with water delivery pipes, one ends of the two groups of water delivery pipes, which are far away from the water storage tank, are fixedly connected with spray heads, the two groups of spray heads are positioned on the upper side of the photovoltaic panel, the two groups of water delivery pipes are fixedly provided with water pumps and valves, the two groups of water pumps are positioned on the upper sides of the two groups of valves, the two groups of guide rails are respectively positioned on both sides of the photovoltaic panel, the bottoms of the two groups of guide rails are provided with slide blocks, opposite sides of the two groups of slide blocks are fixedly connected with moving blocks, the tops of opposite sides of the two groups of guide rails are fixedly connected with limiting rods, the bottoms of opposite sides of the two groups of guide rails are fixedly connected with driving motors, and output ends of the two groups of driving motors are fixedly connected with threaded rods, two groups of moving blocks are respectively in threaded connection with two groups of threaded rods, one ends of the two groups of threaded rods, far away from a driving motor, are fixedly connected with bearings, the two groups of bearings are fixedly arranged at the bottoms of the two groups of limiting rods, opposite sides of the two groups of moving blocks are fixedly connected with electric rotating rods, opposite sides of the two groups of electric rotating rods are fixedly connected with connecting rods, the two groups of connecting rods respectively penetrate through two side walls of a cleaning box, a cleaning roller is fixedly connected between the two groups of connecting rods, electric heating wires are distributed in an inner cavity of the cleaning roller at equal intervals, the three groups of electric heating wires are total, a cleaning plate is fixedly connected between the inner walls of the two sides of the cleaning box, a hairbrush is fixedly connected at the rear side of the cleaning plate and is tightly attached to the front side of the cleaning roller, a collecting box is arranged at the lower side of the inner cavity of the cleaning box and is positioned at the bottom of the cleaning plate, and is positioned at the lower side of the cleaning plate, and a dust suction fan is fixedly arranged at the bottom of the inner cavity of the collection box.
In a preferred embodiment of the present invention, the driving motor, the electric rotating rod, the electric heating wire and the dust suction fan are electrically connected to the photovoltaic panel.
As a preferred embodiment of the utility model, the two sides of the top of the cleaning box are fixedly connected with hooks, and a water-absorbing cloth is hung between the two groups of hooks and is tightly attached to the rear end of the top of the cleaning box.
In a preferred embodiment of the present invention, a water filling valve is fixedly connected to the right end of the water storage tank.
As a preferred embodiment of the utility model, a movable door is hinged between two side walls of the bottom of the cleaning box.
As a preferred embodiment of the present invention, the photovoltaic panel and the rear sides of the two sets of guide rails are fixedly connected with support legs.
Compared with the prior art, the utility model has the following beneficial effects:
according to the cleaning device, the guide rail, the driving motor, the threaded rod, the moving block and the cleaning box are arranged, the driving motor drives the threaded rod to rotate, the sliding block is driven to drive the moving block to move, the moving block drives the cleaning box to cling to the surface of the photovoltaic plate to move, the cleaning roller cleans stains on the surface of the photovoltaic plate, in the rotating process of the cleaning roller, the brush can sweep away stains adsorbed on the surface of the cleaning roller, and when the brush cleans the stains on the cleaning roller, the dust collection fan can adsorb the stains cleaned by the brush into the collection box to be stored, so that secondary pollution is avoided, the cleanliness of the cleaning roller is increased, and the cleaning effect is better; and in the removal of cleaning roller, the cloth that absorbs water can adsorb the cleaning fluid to remaining water stain can be dried through the electric heating wire of cleaning roller inner chamber, makes the clearance more thorough.
Drawings
Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a top view of a cleaning device for a photovoltaic panel of a road and bridge project according to the present invention;
FIG. 2 is a front view of a cleaning box of the cleaning device for a photovoltaic panel of a road and bridge project, according to the utility model;
FIG. 3 is a schematic structural view of a device A of the cleaning device for a photovoltaic panel of a road and bridge project, according to the present invention;
fig. 4 is a right side view of the cleaning device for a photovoltaic panel of a road and bridge engineering.
In the figure: 1. a photovoltaic panel; 2. a guide rail; 3. cleaning the box; 4. a connecting plate; 5. a water storage tank; 6. a water delivery pipe; 7. a spray head; 8. a water pump; 9. a valve; 10. a slider; 11. a moving block; 12. a limiting rod; 13. a drive motor; 14. a threaded rod; 15. a bearing; 16. an electric rotating rod; 17. a connecting rod; 18. cleaning the roller; 19. an electric heating wire; 20. cleaning the plate; 21. a brush; 22. a collection box; 23. a dust collection fan; 24. hooking; 25. water-absorbing cloth; 26. a water injection valve; 27. a movable door; 28. and (5) supporting legs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations, the model of the electrical appliance provided in the present invention is only referred to, and different models of electrical appliances with the same function can be replaced according to the actual use situation.
Referring to fig. 1-4, the present invention provides a technical solution: a road and bridge engineering photovoltaic panel cleaning device comprises a photovoltaic panel 1, guide rails 2 and a cleaning box 3, wherein the top of the photovoltaic panel 1 is fixedly connected with a connecting plate 4, the top of the connecting plate 4 is fixedly connected with a water storage tank 5, two sides of the bottom of the water storage tank 5 are both communicated with water delivery pipes 6, one ends of two groups of water delivery pipes 6, far away from the water storage tank 5, are both fixedly connected with spray heads 7, two groups of spray heads 7 are both positioned on the upper side of the photovoltaic panel 1, two groups of water delivery pipes 6 are both fixedly provided with water pumps 8 and valves 9, two groups of water pumps 8 are both positioned on the upper sides of two groups of valves 9, the two groups of guide rails 2 are two, the two groups of guide rails 2 are respectively positioned on two sides of the photovoltaic panel 1, the bottoms of the two groups of guide rails 2 are both provided with slide blocks 10, opposite sides of the two groups of slide blocks 10 are both fixedly connected with moving blocks 11, and opposite sides of the two groups of guide rails 2 are both tops of limiting rods 12, the bottom of the opposite sides of two groups of guide rails 2 are fixedly connected with driving motors 13, the output ends of the two groups of driving motors 13 are fixedly connected with threaded rods 14, two groups of moving blocks 11 are respectively in threaded connection with the two groups of threaded rods 14, one ends of the two groups of threaded rods 14, which are far away from the driving motors 13, are fixedly connected with bearings 15, the two groups of bearings 15 are fixedly arranged at the bottom of the two groups of limiting rods 12, the opposite sides of the two groups of moving blocks 11 are respectively fixedly connected with electric rotating rods 16, the opposite sides of the two groups of electric rotating rods 16 are respectively and fixedly connected with connecting rods 17, the two groups of connecting rods 17 respectively penetrate through the two side walls of a cleaning box 3, a cleaning roller 18 is fixedly connected between the two groups of connecting rods 17, electric heating wires 19 are distributed in the inner cavity of the cleaning roller 18 at equal intervals, the electric heating wires 19 are three groups, and cleaning plates 20 are fixedly connected between the inner walls of the two sides of the cleaning box 3, the rear side of the cleaning plate 20 is fixedly connected with a brush 21, the brush 21 is tightly attached to the front side of the cleaning roller 18, a collecting box 22 is arranged at the lower side of an inner cavity of the cleaning box 3, the collecting box 22 is positioned at the bottom of the cleaning plate 20, the collecting box 22 is positioned at the lower side of the cleaning plate 20, a dust suction fan 23 is fixedly installed at the bottom of the inner cavity of the collecting box 22, a water pump 8 pumps cleaning liquid in a water storage tank 5 to spray on the photovoltaic plate 1 through a water delivery pipe 6 and a spray head 7 by opening a valve 9, a driving motor 13 drives a threaded rod 14 to rotate after cleaning, a sliding block 10 drives a moving block 11 to move, the moving block 11 drives an electric rotating rod 16 to move, the electric rotating rod 16 controls a connecting rod 17 to drive the cleaning roller 18 to rotate and drive the cleaning box 3 to move, the cleaning roller 18 can clean stains on the surface of the photovoltaic plate 1, and the brush 21 can clean stains attached to the cleaning roller 18 during cleaning, the dust suction fan 23 sucks the cleaned stains into the collection box 22, the cleaning roller 18 is heated by the electric heating wire 19, and the water stains left on the surface of the photovoltaic panel 1 are dried.
In this embodiment, referring to fig. 1, the driving motor 13, the electric rotating rod 16, the electric heating wire 19 and the dust suction fan 23 are all electrically connected to the photovoltaic panel 1, and the driving motor 13, the electric rotating rod 16, the electric heating wire 19 and the dust suction fan 23 are powered by the photovoltaic panel 1.
Referring to fig. 1 in this embodiment, hooks 24 are fixedly connected to both sides of the top of the cleaning box 3, a water-absorbing cloth 25 is hung between the two groups of hooks 24, the water-absorbing cloth 25 is tightly attached to the rear end of the top of the cleaning box 3, the cleaning liquid is absorbed by the water-absorbing cloth 25, and the hooks 24 are more convenient to detach the water-absorbing cloth 25.
Referring to fig. 1 in this embodiment, a water injection valve 26 is fixedly connected to the right end of the water storage tank 5, and water is filled through the water injection valve 26 when the water storage tank 5 is empty.
In this embodiment, referring to fig. 1, a movable door 27 is hinged between two side walls of the bottom of the cleaning box 3, and the collecting box 22 can be taken out and cleaned by opening the movable door 27.
Referring to fig. 4 in this embodiment, the photovoltaic panel 1 and the two sets of guide rails 2 are fixedly connected with support legs 28 at the rear sides, and the support legs 28 keep the guide rails 2 tightly attached to the tops of the two sides of the photovoltaic panel 1.
It should be noted that the parts included in the cleaning device for the photovoltaic panel of the road and bridge engineering are all universal standard parts or parts known by those skilled in the art, the structure and principle of the cleaning device are known by technical manuals or conventional experimental methods, at the idle position of the cleaning device, all the electric devices refer to power elements, electric devices, adaptive monitoring computers and power supplies which are connected through wires, and specific connecting means are provided.
When the cleaning device for the photovoltaic panel of the road and bridge engineering is used, a valve 9 is opened, a water pump 8 pumps cleaning liquid in a water storage tank 5 to spray the photovoltaic panel 1 through a spray head 7 through a water delivery pipe 6, a driving motor 13 drives a threaded rod 14 to rotate after cleaning, a sliding block 10 drives a moving block 11 to move, the moving block 11 drives an electric rotating rod 16 to move, the electric rotating rod 16 controls a connecting rod 17 to drive a cleaning roller 18 to rotate and drive a cleaning box 3 to move, cleaning liquid is adsorbed by a water absorption cloth 25, the water absorption cloth 25 is more convenient to detach by a hook 24, the cleaning roller 18 cleans stains on the surface of the photovoltaic panel 1, a brush 21 cleans the stains attached to the cleaning roller 18 during cleaning, a dust absorption fan 23 sucks the cleaned stains into a collecting box 22, the cleaning roller 18 is heated through an electric heating wire 19, and residual water stains on the surface of the photovoltaic panel 1 are dried, when the water storage tank 5 is empty, water is filled through the water filling valve 26, the collecting box 22 can be taken out and cleaned by opening the movable door 27, the photovoltaic panel 1 is utilized to provide electric energy for the driving motor 13, the electric rotating rod 16, the electric heating wire 19 and the dust absorption fan 23, and the device is simple in structure, convenient to operate and high in practicability.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a road and bridge engineering photovoltaic board cleaning device, includes photovoltaic board (1), guide rail (2) and clearance case (3), its characterized in that: the top of the photovoltaic panel (1) is fixedly connected with a connecting plate (4), the top of the connecting plate (4) is fixedly connected with a water storage tank (5), both sides of the bottom of the water storage tank (5) are communicated with water conveying pipes (6), one ends, far away from the water storage tank (5), of two groups of water conveying pipes (6) are fixedly connected with spray heads (7), the two groups of spray heads (7) are positioned on the upper side of the photovoltaic panel (1), water pumps (8) and valves (9) are fixedly installed on the two groups of water conveying pipes (6), the two groups of water pumps (8) are positioned on the upper sides of the two groups of valves (9), the two groups of guide rails (2) are divided into two groups, the two groups of guide rails (2) are respectively positioned on both sides of the photovoltaic panel (1), sliding blocks (10) are arranged at the bottoms of the two groups of guide rails (2), moving blocks (11) are fixedly connected on opposite sides of the two groups of sliding blocks (10), and limiting rods (12) are fixedly connected to the tops of opposite sides of the two groups of guide rails (2), the bottom of the opposite side of the two groups of guide rails (2) is fixedly connected with a driving motor (13), the output end of the two groups of driving motors (13) is fixedly connected with a threaded rod (14), the two groups of moving blocks (11) are respectively in threaded connection with the two groups of threaded rods (14), one ends, far away from the driving motors (13), of the two groups of threaded rods (14) are respectively and fixedly connected with a bearing (15), the two groups of bearings (15) are fixedly arranged at the bottom of the two groups of limiting rods (12), the opposite sides of the two groups of moving blocks (11) are respectively and fixedly connected with an electric rotating rod (16), the opposite sides of the two groups of electric rotating rods (16) are respectively and fixedly connected with connecting rods (17), the two groups of connecting rods (17) respectively penetrate through the two side walls of the cleaning box (3), a cleaning roller (18) is fixedly connected between the two groups of connecting rods (17), and electric heating wires (19) are distributed in the inner cavity of the cleaning roller (18) at equal intervals, the electric heating wire cleaning device is characterized by comprising three groups of electric heating wires (19), a cleaning plate (20) is fixedly connected between the inner walls of the two sides of the cleaning box (3), a brush (21) is fixedly connected to the rear side of the cleaning plate (20), the brush (21) is tightly attached to the front side of the cleaning roller (18), a collecting box (22) is arranged on the lower side of the inner cavity of the cleaning box (3), the collecting box (22) is located at the bottom of the cleaning plate (20), the collecting box (22) is located on the lower side of the cleaning plate (20), and a dust suction fan (23) is fixedly mounted at the bottom of the inner cavity of the collecting box (22).
2. The road and bridge engineering photovoltaic board cleaning device of claim 1, wherein: the driving motor (13), the electric rotating rod (16), the electric heating wire (19) and the dust collection fan (23) are all electrically connected with the photovoltaic panel (1).
3. The road and bridge engineering photovoltaic board cleaning device of claim 1, wherein: the cleaning box is characterized in that hooks (24) are fixedly connected to two sides of the top of the cleaning box (3), water absorbing cloth (25) is hung between the two groups of hooks (24), and the water absorbing cloth (25) is tightly attached to the rear end of the top of the cleaning box (3).
4. The road and bridge engineering photovoltaic board cleaning device of claim 1, wherein: the right end of the water storage tank (5) is fixedly connected with a water injection valve (26).
5. The road and bridge engineering photovoltaic board cleaning device of claim 1, wherein: a movable door (27) is hinged between two side walls of the bottom of the cleaning box (3).
6. The road and bridge engineering photovoltaic board cleaning device of claim 1, wherein: photovoltaic board (1) and two sets of equal fixedly connected with supporting leg (28) of guide rail (2) rear side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121461473.3U CN215844359U (en) | 2021-06-29 | 2021-06-29 | Road and bridge engineering photovoltaic board cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121461473.3U CN215844359U (en) | 2021-06-29 | 2021-06-29 | Road and bridge engineering photovoltaic board cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215844359U true CN215844359U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121461473.3U Expired - Fee Related CN215844359U (en) | 2021-06-29 | 2021-06-29 | Road and bridge engineering photovoltaic board cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215844359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117277938A (en) * | 2023-09-21 | 2023-12-22 | 交科院科技集团有限公司 | Photovoltaic power generation device utilizing pavement |
-
2021
- 2021-06-29 CN CN202121461473.3U patent/CN215844359U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117277938A (en) * | 2023-09-21 | 2023-12-22 | 交科院科技集团有限公司 | Photovoltaic power generation device utilizing pavement |
| CN117277938B (en) * | 2023-09-21 | 2024-04-05 | 交科院科技集团有限公司 | Photovoltaic power generation device utilizing pavement |
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