CN113595485A - Photovoltaic panel protection system for photovoltaic power generation prediction of micro-grid - Google Patents
Photovoltaic panel protection system for photovoltaic power generation prediction of micro-grid Download PDFInfo
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- CN113595485A CN113595485A CN202110675255.8A CN202110675255A CN113595485A CN 113595485 A CN113595485 A CN 113595485A CN 202110675255 A CN202110675255 A CN 202110675255A CN 113595485 A CN113595485 A CN 113595485A
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- 238000010248 power generation Methods 0.000 title claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/10—Frame structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
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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)
Abstract
The invention provides a photovoltaic panel protection system for photovoltaic power generation prediction of a microgrid, and relates to the technical field of photovoltaic panels. This photovoltaic board protection system is used in prediction of little grid photovoltaic power generation, which comprises a frame, the right-hand member of frame is provided with spacing hole, the inner wall sliding connection in spacing hole has the guard plate, the up end of guard plate is provided with the rack, the tooth's socket meshing of rack is connected with the gear, the output shaft of fixedly connected with motor on the gear, the left end fixed connection baffle of guard plate, the left end fixedly connected with L template of baffle, the cotton is cleaned to the lower extreme fixedly connected with of L template, the upper end fixedly connected with photovoltaic board of frame, the lower extreme fixedly connected with link of frame. Make gear and rack mesh the transmission through motor drive, and then make the guard plate motion, shift up through the drive guard plate and effectively prevent hail weather from damaging the photovoltaic board, show the protectiveness that improves the device.
Description
Technical Field
The invention relates to the technical field of photovoltaic panels, in particular to a photovoltaic panel protection system for photovoltaic power generation prediction of a microgrid.
Background
Photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor interface, mainly comprises a solar cell panel, a controller and an inverter, and mainly comprises electronic components. Solar cells are packaged and protected after being connected in series to form a large-area solar cell module, a photovoltaic power generation device is formed by matching with components such as a power controller, and protective equipment is required to be arranged for the photovoltaic power generation device to deal with hail and snowstorm environments.
Ordinary photovoltaic board lacks protection component, and when meetting snow storm and hail environment, the photovoltaic board is impaired easily, leads to the maintenance cost of photovoltaic board to improve, leads to the photovoltaic board to reduce in the aspect of the adaptation environment ability, and the photovoltaic board is inconvenient to carry out angle and height and adjusts simultaneously, provides a photovoltaic board protection system for microgrid photovoltaic power generation prediction from this.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a photovoltaic panel protection system for photovoltaic power generation prediction of a microgrid, and solves the problems of low protection performance and poor applicability of a photovoltaic panel.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a photovoltaic panel protection system for predicting photovoltaic power generation of a micro-grid comprises a frame, wherein a limiting hole is formed in the right end of the frame, sliding grooves are formed in the front end and the rear end of the frame, a protection plate is connected to the inner wall of the limiting hole in a sliding mode, sliding strips are arranged on two sides of the protection plate, a rack is arranged on the upper end face of the protection plate, a gear is connected to the tooth socket of the rack in a meshing mode, and an output shaft of a motor is fixedly connected to the gear;
the left end of the protection plate is fixedly connected with a baffle, the left end of the baffle is fixedly connected with an L-shaped plate, the lower end of the L-shaped plate is fixedly connected with wiping cotton, and the other end of the protection plate is provided with a convex plate;
the equal fixedly connected with slider in both sides end of baffle, the surface sliding connection of slider has the spout, the upper end fixedly connected with photovoltaic board of frame, the below of frame is provided with the head rod, the lower extreme fixedly connected with link of frame, it is connected with the second connecting rod to rotate on the link, the lower extreme of second connecting rod is provided with the stop collar, the first support of inner wall fixedly connected with and the second support of stop collar, the first piston rod of lower extreme fixedly connected with of first support, the lower extreme fixedly connected with second piston rod of second support, first support with all be provided with the locking cap on the second support.
Preferably, the lower end of the first piston rod is connected with a first hydraulic cylinder in a sliding mode, the lower end of the second piston rod is connected with a second hydraulic cylinder in a sliding mode, and the lower ends of the first hydraulic cylinder and the second hydraulic cylinder are fixedly connected with a bottom plate.
Preferably, the right-hand member of head rod rotates and is connected with first cutting ferrule, first cutting ferrule with first pneumatic cylinder is fixed connection, the left end threaded connection of head rod has the pole cover, the left end fixedly connected with second cutting ferrule of pole cover, the second cutting ferrule with the second pneumatic cylinder is fixed connection, first cutting ferrule with the second cutting ferrule all adopts the joint fixed.
Preferably, the connecting plates are fixedly connected between the connecting frames, the number of the connecting frames is four, and the connecting frames are symmetrically distributed on the lower end face of the frame.
Preferably, the draw runner with the guard plate is connected as an organic whole, the surface sliding connection of draw runner has spacing hole, the quantity of draw runner is two.
Preferably, the bottom end of the motor is fixedly connected with a shell, a gear is arranged in the shell, and the lower end of the shell is fixedly connected with a frame.
Preferably, the upper end face of the protection plate is provided with a groove, and the bottom end of the groove is fixedly connected with a rack.
Preferably, the convex plate and the protection plate are integrally connected.
The working principle is as follows: the user firstly fixes bottom plate 14, later measure the distance between first pneumatic cylinder 11 and the second pneumatic cylinder 16, rotate first connecting rod 12 and rod cover 13 again and adjust the position of first cutting ferrule 10 and second cutting ferrule 15, later adjust the angle of second connecting rod 26, and then make frame 5 fix in the assigned position, when predicting weather and will appear hail and snowstorm environment, motor 32 corotation, motor 32 drive gear 27 rotates, gear 27 and rack 21 carry out meshing transmission, make guard plate 6 spacing upwards moving through spacing hole 23 and spout 1, guard plate 6 covers photovoltaic board 2 completely, after adverse circumstances, motor 32 reversal makes guard plate 6 move down.
(III) advantageous effects
The invention provides a photovoltaic panel protection system for photovoltaic power generation prediction of a microgrid. The method has the following beneficial effects:
1. according to the invention, the frame is combined with the limiting hole and the sliding groove to limit the movement direction of the protection plate, the protection plate is in limiting sliding with the limiting hole under the matching of the sliding strip, the protection plate is in limiting sliding with the baffle plate and the sliding groove, the gear and the rack are in meshing transmission under the driving of the motor, so that the protection plate is stably operated, and when the protection plate moves upwards, the protection plate shields the photovoltaic panel, so that the device can cope with severe environments such as hail and snowstorm, and the device has excellent protection performance.
2. According to the invention, the upper end of the protection plate is provided with the baffle plate, the lower end of the protection plate is provided with the convex plate, the device has a limiting protection function by arranging the baffle plate and the convex plate, the protection plate is prevented from moving excessively, and the protection performance of the device is further improved.
3. According to the invention, the lower end of the frame is provided with the first hydraulic cylinder and the second hydraulic cylinder, the height of the frame can be adjusted through the driving of the first hydraulic cylinder and the second hydraulic cylinder, and the angle of the frame can be adjusted through the arrangement of the first support and the second support, so that the photovoltaic panel can conveniently collect light, and meanwhile, the photovoltaic panel has excellent applicability.
4. According to the invention, the stability of the first hydraulic cylinder and the second hydraulic cylinder is further improved by arranging the connecting rod and the connecting plate, so that the service life of the device is prolonged.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a perspective view of the fender of the present invention;
FIG. 3 is a perspective view of a portion of the present invention;
FIG. 4 is a perspective view of a portion of the present invention;
FIG. 5 is a side view of a partial structure of the present invention;
FIG. 6 is an enlarged view of FIG. 2 at A;
fig. 7 is an enlarged view of fig. 3 at B.
Wherein, 1, a chute; 2. a photovoltaic panel; 3. a baffle plate; 4. a housing; 5. a frame; 6. a protection plate; 7. a convex plate; 8. a first bracket; 9. a first piston rod; 10. a first ferrule; 11. a first hydraulic cylinder; 12. a first connecting rod; 13. a rod sleeve; 14. a base plate; 15. a second ferrule; 16. a second hydraulic cylinder; 17. a second piston rod; 18. a second bracket; 19. a fastening cap; 20. a connecting frame; 21. a rack; 22. a groove; 23. a limiting hole; 24. a connecting plate; 25. a limiting sleeve; 26. a second connecting rod; 27. a gear; 28. a slide bar; 29. an L-shaped plate; 30. wiping cotton; 31. a slider; 32. an electric motor.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1 to 7, an embodiment of the present invention provides a photovoltaic panel protection system for photovoltaic power generation prediction of a microgrid, including a frame 5, a limiting hole 23 is provided at a right end of the frame 5, sliding chutes 1 are provided at front and rear ends of the frame 5, an inner wall of the limiting hole 23 is connected with a protection plate 6 in a sliding manner, the protection plate 6 is mainly used in hail weather, the photovoltaic panel 2 is prevented from being damaged by hail by the sliding protection plate 6, sliding strips 28 are provided at two sides of the protection plate 6, a rack 21 is provided on an upper end surface of the protection plate 6, a gear 27 is engaged with a tooth slot of the rack 21, an output shaft of a motor 32 is fixedly connected to the gear 27, the motor 32 drives the gear 27 to rotate, and the protection plate 6 is enabled to move up and down under the cooperation of the rack 21;
the left end of the protection plate 6 is fixedly connected with the baffle 3, the left end of the baffle 3 is fixedly connected with the L-shaped plate 29, the lower end of the L-shaped plate 29 is fixedly connected with the wiping cotton 30, the other end of the protection plate 6 is provided with the convex plate 7, the L-shaped plate 29 and the baffle 3 are fixedly clamped, the L-shaped plate is combined with the wiping cotton 30 to clean the photovoltaic plate, and meanwhile, the L-shaped plate 29 is convenient to disassemble, so that the wiping cotton 30 can be conveniently replaced;
the two side ends of the baffle 3 are fixedly connected with sliding blocks 31, the outer surface of the sliding block 31 is slidably connected with a sliding chute 1, the sliding block 31 and the sliding chute 1 on the frame 5 perform limited sliding, the baffle 3 operates stably by arranging the sliding block 31, the upper end of the frame 5 is fixedly connected with a photovoltaic panel 2, a first connecting rod 12 is arranged below the frame 5, the lower end of the frame 5 is fixedly connected with a connecting frame 20, a second connecting rod 26 is rotatably connected on the connecting frame 20, the lower end of the second connecting rod 26 is provided with a limiting sleeve 25, the inner wall of the limiting sleeve 25 is fixedly connected with a first bracket 8 and a second bracket 18, the first bracket 8 and the second bracket 18 are both connecting pieces, the first bracket 8 and the second bracket 18 are both U-shaped pieces, the lower end of the first bracket 8 is fixedly connected with a first piston rod 9, the lower end of the second bracket 18 is fixedly connected with a second piston rod 17, and the first bracket 8 and the second bracket 18 are both provided with fastening caps 19, the fastening cap 19 serves to limit the angle of the second connecting rod 26, thereby enabling the angle of the frame 5 to be adjusted.
The lower extreme sliding connection of first piston rod 9 has first pneumatic cylinder 11, and the lower extreme sliding connection of second piston rod 17 has second pneumatic cylinder 16, and the equal fixedly connected with bottom plate 14 of lower extreme of first pneumatic cylinder 11 and second pneumatic cylinder 16, first piston rod 9 and the cooperation of second piston rod 17 first pneumatic cylinder 11 and the drive of second pneumatic cylinder 16 realization of lower extreme make the height realization of frame 5 adjust through changing the position of first piston rod 9 and second piston rod 17.
The right-hand member of first connecting rod 12 rotates and is connected with first cutting ferrule 10, first cutting ferrule 10 is fixed connection with first pneumatic cylinder 11, the left end threaded connection of first connecting rod 12 has pole cover 13, the left end fixedly connected with second cutting ferrule 15 of pole cover 13, second cutting ferrule 15 is fixed connection with second pneumatic cylinder 16, first cutting ferrule 10 and second cutting ferrule 15 are all realized fixedly through the joint, the position that makes first cutting ferrule 10 and second cutting ferrule 15 is convenient for adjust through rotating first connecting rod 12, and then improve the device's suitability.
Fixedly connected with connecting plate 24 between link 20, the quantity of link 20 is four, and the symmetric distribution is at the lower terminal surface of frame 5, and connecting plate 24 is the connecting piece, makes link 20 be convenient for fix through setting up the connecting plate.
The slide bar 28 and the protection plate 6 are connected as an organic whole, the outer surface sliding connection of slide bar 28 has spacing hole 23, and the quantity of slide bar 28 is two, and spacing hole 23 and slide bar 28 carry out spacing slip, make protection plate 6 steady operation through setting up slide bar 28.
The bottom fixedly connected with casing 4 of motor 32, the inside of casing 4 is provided with gear 27, and gear 27 is the driving piece, and the lower extreme fixedly connected with frame 5 of casing 4, the both sides end of casing 4 are provided with the otic placode, are provided with the locating hole on the otic placode, and casing 4 passes through the otic placode to be realized fixed with frame 5.
The up end of guard plate 6 is provided with recess 22, and the bottom fixedly connected with rack 21 of recess 22 can reduce the processing degree of difficulty to spacing hole 23 through setting up recess 22, and rack 21 is the connecting piece.
The convex plate 7 is connected with the protection plate 6 into a whole, and the convex plate 7 has a limiting function and prevents the protection plate 6 from moving upwards in a transition mode.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a little grid photovoltaic power generation is photovoltaic board protection system for prediction, includes frame (5), its characterized in that: a limiting hole (23) is formed in the right end of the frame (5), sliding chutes (1) are formed in the front end and the rear end of the frame (5), a protection plate (6) is connected to the inner wall of the limiting hole (23) in a sliding mode, sliding strips (28) are arranged on two sides of the protection plate (6), a rack (21) is arranged on the upper end face of the protection plate (6), a gear (27) is connected to the tooth grooves of the rack (21) in a meshed mode, and an output shaft of a motor (32) is fixedly connected to the gear (27);
the left end of the protection plate (6) is fixedly connected with the baffle (3), the left end of the baffle (3) is fixedly connected with an L-shaped plate (29), the lower end of the L-shaped plate (29) is fixedly connected with a wiping cotton (30), and the other end of the protection plate (6) is provided with a convex plate (7);
both side ends of the baffle (3) are fixedly connected with sliding blocks (31), the outer surface of each sliding block (31) is connected with a sliding chute (1) in a sliding way, the upper end of the frame (5) is fixedly connected with a photovoltaic panel (2), a first connecting rod (12) is arranged below the frame (5), the lower end of the frame (5) is fixedly connected with a connecting frame (20), the connecting frame (20) is rotatably connected with a second connecting rod (26), the lower end of the second connecting rod (26) is provided with a limiting sleeve (25), the inner wall of the limiting sleeve (25) is fixedly connected with a first bracket (8) and a second bracket (18), the lower end of the first bracket (8) is fixedly connected with a first piston rod (9), the lower end of the second bracket (18) is fixedly connected with a second piston rod (17), and fastening caps (19) are arranged on the first bracket (8) and the second bracket (18).
2. The photovoltaic panel protection system for photovoltaic power generation prediction of the microgrid of claim 1, characterized in that: the lower extreme sliding connection of first piston rod (9) has first pneumatic cylinder (11), the lower extreme sliding connection of second piston rod (17) has second pneumatic cylinder (16), first pneumatic cylinder (11) with the equal fixedly connected with bottom plate (14) of lower extreme of second pneumatic cylinder (16).
3. The photovoltaic panel protection system for photovoltaic power generation prediction of the microgrid of claim 2, characterized in that: the right-hand member of first connecting rod (12) rotates and is connected with first cutting ferrule (10), first cutting ferrule (10) with first pneumatic cylinder (11) are fixed connection, the left end threaded connection of first connecting rod (12) has pole cover (13), the left end fixed connection of pole cover (13) has second cutting ferrule (15), second cutting ferrule (15) with second pneumatic cylinder (16) are fixed connection.
4. The photovoltaic panel protection system for photovoltaic power generation prediction of the microgrid of claim 1, characterized in that: the connecting frames (20) are fixedly connected with connecting plates (24), the number of the connecting frames (20) is four, and the connecting frames are symmetrically distributed on the lower end face of the frame (5).
5. The photovoltaic panel protection system for photovoltaic power generation prediction of the microgrid of claim 1, characterized in that: the draw runner (28) with guard plate (6) be connected as an organic whole, the surface sliding connection of draw runner (28) has spacing hole (23), the quantity of draw runner (28) is two.
6. The photovoltaic panel protection system for photovoltaic power generation prediction of the microgrid of claim 1, characterized in that: the bottom fixedly connected with casing (4) of motor (32), the inside of casing (4) is provided with gear (27), the lower extreme fixedly connected with frame (5) of casing (4).
7. The photovoltaic panel protection system for photovoltaic power generation prediction of the microgrid of claim 1, characterized in that: the upper end face of the protection plate (6) is provided with a groove (22), and the bottom end of the groove (22) is fixedly connected with a rack (21).
8. The photovoltaic panel protection system for photovoltaic power generation prediction of the microgrid of claim 1, characterized in that: the convex plate (7) and the protection plate (6) are integrally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675255.8A CN113595485A (en) | 2021-06-18 | 2021-06-18 | Photovoltaic panel protection system for photovoltaic power generation prediction of micro-grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675255.8A CN113595485A (en) | 2021-06-18 | 2021-06-18 | Photovoltaic panel protection system for photovoltaic power generation prediction of micro-grid |
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| Publication Number | Publication Date |
|---|---|
| CN113595485A true CN113595485A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110675255.8A Pending CN113595485A (en) | 2021-06-18 | 2021-06-18 | Photovoltaic panel protection system for photovoltaic power generation prediction of micro-grid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204892A (en) * | 2021-11-19 | 2022-03-18 | 礼德新能源江苏有限公司 | Photovoltaic frame with protection function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013008043A2 (en) * | 2011-07-08 | 2013-01-17 | Papanaklis Andreas | Photovoltaic panel pergola with sliding modules |
| EP3034961A1 (en) * | 2014-12-17 | 2016-06-22 | Sunrail Co., Ltd. | Solar photovoltaic power generation panel mount |
| CN106899259A (en) * | 2017-03-08 | 2017-06-27 | 深圳市奈士迪技术研发有限公司 | A kind of intelligent photovoltaic TRT with self-protection function |
| CN108092611A (en) * | 2018-02-05 | 2018-05-29 | 国网安徽省电力有限公司培训中心 | A kind of distribution type photovoltaic power generation device |
| CN110011604A (en) * | 2019-04-17 | 2019-07-12 | 陈小勇 | A kind of solar energy photovoltaic panel mounting bracket |
-
2021
- 2021-06-18 CN CN202110675255.8A patent/CN113595485A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013008043A2 (en) * | 2011-07-08 | 2013-01-17 | Papanaklis Andreas | Photovoltaic panel pergola with sliding modules |
| EP3034961A1 (en) * | 2014-12-17 | 2016-06-22 | Sunrail Co., Ltd. | Solar photovoltaic power generation panel mount |
| CN106899259A (en) * | 2017-03-08 | 2017-06-27 | 深圳市奈士迪技术研发有限公司 | A kind of intelligent photovoltaic TRT with self-protection function |
| CN108092611A (en) * | 2018-02-05 | 2018-05-29 | 国网安徽省电力有限公司培训中心 | A kind of distribution type photovoltaic power generation device |
| CN110011604A (en) * | 2019-04-17 | 2019-07-12 | 陈小勇 | A kind of solar energy photovoltaic panel mounting bracket |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204892A (en) * | 2021-11-19 | 2022-03-18 | 礼德新能源江苏有限公司 | Photovoltaic frame with protection function |
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Application publication date: 20211102 |
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