CN111384892A - Solar photovoltaic panel assembly - Google Patents

Solar photovoltaic panel assembly Download PDF

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Publication number
CN111384892A
CN111384892A CN201911397871.0A CN201911397871A CN111384892A CN 111384892 A CN111384892 A CN 111384892A CN 201911397871 A CN201911397871 A CN 201911397871A CN 111384892 A CN111384892 A CN 111384892A
Authority
CN
China
Prior art keywords
boss
frame
fixedly connected
water
solar panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911397871.0A
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Chinese (zh)
Inventor
韩淑军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Sanyuan Electric Information Technology Co ltd
Original Assignee
Tianjin Sanyuan Electric Information Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Sanyuan Electric Information Technology Co ltd filed Critical Tianjin Sanyuan Electric Information Technology Co ltd
Priority to CN201911397871.0A priority Critical patent/CN111384892A/en
Publication of CN111384892A publication Critical patent/CN111384892A/en
Pending legal-status Critical Current

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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
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • F24S25/13—Profile arrangements, e.g. trusses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • 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
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a solar photovoltaic panel assembly, and relates to the technical field of new energy; the front and back of the vertical end of the fixing frame are symmetrically fixed with a first boss, the interior of the base is fixed with a second boss, the second boss is arranged between the front and back first bosses, the front and back sides of the second boss are fixed with rotating shafts, the other end of each rotating shaft is screwed with the first boss through a bearing, the horizontal end of the fixing frame is fixed with a motor, an output shaft at the upper end of the motor is fixed with a lead screw, a driving frame is penetrated through the lead screw through thread rotation, the left end of the driving frame is fixedly connected with a guide block, the guide block is arranged in a guide groove in a vertical sliding manner, and the bottom of the base is fixed with a guide frame; through adjusting solar panel's the angle of shining, make solar panel follow the change of sunlight and rotate to solar panel's absorption efficiency has been improved, and in long-time use, carry out the cleaning operation to solar panel, guaranteed solar panel's cleanliness factor, improve solar panel's availability factor.

Description

Solar photovoltaic panel assembly
Technical Field
The invention relates to the technical field of new energy, in particular to a solar photovoltaic panel assembly.
Background
With the continuous development of science and technology and the increasing shortage of fossil energy, solar energy is increasingly paid more attention to people as clean energy which does not pollute the environment; the solar photovoltaic panel assembly is a power generation device which can generate direct current when exposed to the sun, and consists of a thin solid photovoltaic cell which is almost made of semiconductor materials (such as silicon), and the solar photovoltaic panel assembly can be operated for a long time without causing any loss because of no movable part; photovoltaic solar panel is as the important component among the solar power system, and its installation angle can direct influence solar power system's generating efficiency, and the solar PV voltage-ampere subassembly among the prior art is installed complicacy mostly, and its angle modulation difficulty, and it is also inconvenient to wash simultaneously, is unfavorable for using.
Disclosure of Invention
The invention aims to provide a solar photovoltaic panel component with reasonable design aiming at the defects and shortcomings of the prior art, the solar panel is enabled to rotate along with the change of sunlight by adjusting the irradiation angle of the solar panel, so that the absorption efficiency of the solar panel is improved, and the solar panel is cleaned in a long-time use process, so that the cleanliness of the solar panel is ensured, and the use efficiency of the solar panel is improved.
In order to achieve the purpose, the invention adopts the following technical scheme: the solar panel module comprises a fixed frame, a base and a solar panel module, wherein the fixed frame is provided with the base, and the base is provided with the solar panel module; the novel water-saving spray nozzle comprises a first boss, a second boss, a guide frame, a driving frame, a water collecting barrel and a spray head, wherein the first boss is symmetrically and fixedly connected to the front and the back of the vertical end of a fixing frame, the second boss is fixedly connected to the inside of a base, the second boss is arranged between the front boss and the back boss, a rotating shaft is fixedly connected to the front side and the back side of the second boss, the other end of the rotating shaft is rotatably connected with the first boss through a bearing, the bearing is fixedly embedded on the inner wall of the first boss, a motor is fixedly connected to the horizontal end of the fixing frame, a lead screw is fixedly connected to the upper end output shaft of the motor, the driving frame is arranged on the lead screw in a penetrating mode through screw thread rotation, a guide block is fixedly connected to the left end of the driving frame, a guide groove is formed in the inner wall of the vertical end of the fixing frame, the guide block, the bottom of the guide frame is provided with a slot, the top end of the vertical end of the driving frame is inserted into the slot, the front side and the rear side of the slot are both provided with limit grooves, the front side and the rear side of the vertical end of the driving frame are both fixedly connected with support shafts, and the support shafts are arranged in the limit grooves in a sliding manner; the water collecting barrel is fixedly connected to the horizontal end of the fixing frame, the water collecting barrel is arranged on the lower right side of the base, the water pump is arranged on the left side of the water collecting barrel and fixed to the fixing frame, the water inlet end of the water pump is communicated with the water collecting barrel through a water pipe, the water outlet end of the water pump is fixedly connected with a water outlet pipe, the water outlet pipe is arranged on the left side of the fixing frame after penetrating through the vertical end of the fixing frame, an extension pipe is communicated with the upper end of the water outlet pipe, a plurality of spray heads are arranged on the right side of the extension; the vertical end front side fixedly connected with control box of mount, the battery and the solar panel component in the control box are connected, and motor, water pump are connected with the battery in the control box.
Furthermore, a filter frame is arranged in the water collecting cylinder, sliding grooves are symmetrically formed in the inner ring wall of the water collecting cylinder in the left-right direction, sliding blocks are fixedly connected to the outer ring wall of the filter frame in the left-right direction in a sliding mode and are arranged in the sliding grooves in a sliding mode, and a filter screen is fixedly embedded in the filter frame.
Furthermore, the right side bottom of water collecting cylinder inlay and establish and be fixed with the drain pipe, be provided with the water valve on the drain pipe.
Furthermore, the top end of the screw rod is fixedly connected with a bulge.
Furthermore, the outer wall of the water collecting barrel is fixedly connected with a liquid level sensor, and the liquid level sensor is connected with a storage battery in the control box.
After adopting the structure, the invention has the beneficial effects that: according to the solar photovoltaic panel assembly, the solar panel rotates along with the change of sunlight by adjusting the irradiation angle of the solar panel, so that the absorption efficiency of the solar panel is improved, and the solar panel is cleaned in a long-time use process, so that the cleanliness of the solar panel is ensured, and the use efficiency of the solar panel is improved.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic view of the structure of the water collecting tank of the present invention.
Fig. 4 is a schematic structural view of the guide frame of the present invention.
Description of reference numerals:
the solar water heater comprises a fixing frame 1, a guide groove 1-1, a base 2, a solar panel component 3, a first boss 4, a second boss 5, a guide frame 6, a slot 6-1, a limiting groove 6-2, a driving frame 7, a water collecting barrel 8, a sliding groove 8-1, a spray head 9, a rotating shaft 10, a motor 11, a screw rod 12, a guide block 13, a fulcrum shaft 14, a water pump 15, a water outlet pipe 16, an extension pipe 17, a filter frame 18, a sliding block 19, a filter screen 20, a water outlet pipe 21, a bulge 22 and a liquid level sensor 23.
The specific implementation mode is as follows:
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.
As shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment: the solar panel component comprises a fixed frame 1, a base 2 and a solar panel component 3, wherein the base 2 is arranged on the fixed frame 1, and the solar panel component 3 is arranged on the base 2; the novel water-saving spray gun also comprises a first boss 4, a second boss 5, a guide frame 6, a driving frame 7, a water collecting barrel 8 and a spray head 9, wherein the first boss 4 is symmetrically welded and fixed on the front and back of the vertical end of a fixing frame 1, the second boss 5 is welded and fixed inside a base 2, the second boss 5 is arranged between the front boss 4 and the back boss 4, rotating shafts 10 are welded and fixed on the front side and the back side of the second boss 5, the other end of each rotating shaft 10 is screwed with the first boss 4 through a bearing, the bearing is embedded and fixed on the inner wall of the first boss 4, the rotating shafts 10 are inserted and fixed in the bearings, a motor 11 with the model of 60KTY is fixed on the horizontal end of the fixing frame 1 through screws, a lead screw 12 is welded and fixed on the output shaft at the upper end of the motor 11, the driving frame 7 is penetrated through screw threads in a rotating manner, a guide block 13 is welded and fixed at the left end of the driving frame 7, a, the guide block 13 is arranged in the guide groove 1-1 in a vertically sliding mode, the top end of the screw rod 12 is fixedly welded with a protrusion 22, the movable frame 7 is limited by the protrusion 22, and therefore the movable frame 7 is prevented from moving away from the screw rod 12, the bottom of the base 2 is fixedly welded with a guide frame 6, the guide frame 6 is arranged on the right side of the second boss 5, the bottom of the guide frame 6 is provided with a slot 6-1, the top end of the vertical end of the movable frame 7 is inserted into the slot 6-1, the front side and the rear side of the slot 6-1 are both provided with limiting grooves 6-2, the front side and the rear side of the vertical end of the movable frame 7 are both fixedly welded with supporting shafts 14, and the supporting shafts 14 are arranged in the limiting grooves; a water collecting cylinder 8 is further welded and fixed on the horizontal end of the fixing frame 1, the water collecting cylinder 8 is arranged on the lower right side of the base 2, a liquid level sensor 23 is fixed on the outer wall of the water collecting cylinder 8 through screws, the liquid level sensor 23 is an externally attached liquid level sensor, the liquid level in the water collecting cylinder 8 can be known through the liquid level sensor 23, a filtering frame 18 is arranged in the water collecting cylinder 8, sliding grooves 8-1 are symmetrically formed in the inner ring wall of the water collecting cylinder 8 in a left-right mode, sliding blocks 19 are symmetrically welded and fixed on the outer ring wall of the filtering frame 18 in a left-right mode, the sliding blocks 19 are arranged in the sliding grooves 8-1 in a sliding mode, a filtering screen 20 is embedded and fixed in the filtering frame 18, the collected rainwater is filtered through the filtering screen 20 additionally arranged in the water collecting cylinder 8, impurities in the rainwater are isolated, the using efficiency of the rainwater is improved, a water drain pipe 21 is fixedly embedded, the water in the water collecting cylinder 8 is discharged through the water discharging pipe 21, the water pump 15 with the model number of 15HG10-8E is arranged on the left side of the water collecting cylinder 8, the water pump 15 is fixed on the fixed frame 1 through screws, the water inlet end of the water pump 15 is communicated with the water collecting cylinder 8 through a water pipe, the water outlet end of the water pump 15 is fixedly connected with a water outlet pipe 16, the water outlet pipe 16 is arranged on the left side of the fixed frame 1 after penetrating through the vertical end of the fixed frame 1, the upper end of the water outlet pipe 16 is communicated with an extension pipe 17, the right side of the extension pipe 17 is provided with a plurality of nozzles 9 in a screwed connection mode; the vertical end front side of mount 1 utilizes the screw fixation to have the control box, and the battery in the control box passes through the connector to be connected with solar panel component 3, and motor 11, water pump 15, liquid level sensor 23 pass through the power cord and are connected with the battery in the control box.
The working principle of the specific embodiment is as follows: when the device is used, the second boss 5 is additionally arranged at the bottom of the base 2, the second boss 5 is connected with the first boss 4 on the fixing frame 1 in a screwing mode, the screw rod 12 is driven to rotate through the rotation of the motor 11, the driving frame 7 is driven to move in the vertical direction, the top end of the vertical end of the driving frame 7 slides in the guide frame 6, the base 2 rotates around the screwing point between the first boss 4 and the second boss 5, the angle of the base 2 is adjusted, the solar panel component 3 is driven to adjust within a certain angle range, the solar panel component 3 is adjusted along with the movement change of the sun, the solar panel component 3 rotates for a certain angle along with different positions of the sun, the direct solar radiation area can be improved, and the absorption efficiency of the solar panel component 3 is improved; after long-time use, especially when the wind level is large, the surface of the solar panel component 3 is covered with dust, which causes poor solar light absorption efficiency of the solar panel component 3, the rainwater sprayed by the solar panel component 3 is received by the water collecting barrel 8 in a rainwater day, the filtering operation is performed by the filter screen 20, the filtered rainwater is pumped out by the water pump 15 and discharged into the water outlet pipe 16, and then flows into the spray head 9 and is sprayed onto the surface of the solar panel component 3 from the spray head 9, so that the dust on the surface of the solar panel component 3 is removed, the step can be repeatedly performed until the dust on the surface of the solar panel is cleaned, after the water in the water collecting barrel 8 is recycled for multiple times, the water is discharged through the drain pipe 21, and the water collecting barrel 8 is provided with a space for rainwater collection operation in a rainy day.
After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:
1. the first boss 4 and the second boss 5 are connected in a screwing mode, so that the base 2 is driven to rotate around the rotary connection point, the angle of the solar panel component 3 is convenient to adjust, the direct solar radiation area is increased, and the absorption efficiency of the solar panel component 3 is improved;
2. be provided with water drum 8 through the right side lower extreme at solar panel module 3, collect the rainwater, make the rainwater carry out the recycle, take out the rainwater to outlet pipe 16 in through water pump 15, spray the rainwater on solar panel module 3 through shower nozzle 9 to carry out the cleaning operation to solar panel module 3, improved solar panel module 3's cleanliness factor, thereby be convenient for solar panel module 3 absorbs the operation.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (5)

1. A solar photovoltaic panel component comprises a fixed frame (1), a base (2) and a solar panel component (3), wherein the base (2) is arranged on the fixed frame (1), and the solar panel component (3) is arranged on the base (2); the method is characterized in that: the novel water collector also comprises a first boss (4), a second boss (5), a guide frame (6), a driving frame (7), a water collecting barrel (8) and a spray head (9), wherein the first boss (4) is symmetrically and fixedly connected to the front and the back of the vertical end of the fixing frame (1), the second boss (5) is fixedly connected to the inner part of the base (2), the second boss (5) is arranged between the front boss (4) and the back boss (4), rotating shafts (10) are fixedly connected to the front side and the back side of the second boss (5), the other end of each rotating shaft (10) is rotatably connected with the first boss (4) through a bearing, the bearing is fixedly embedded on the inner wall of the first boss (4), a motor (11) is fixedly connected to the horizontal end of the fixing frame (1), a lead screw (12) is fixedly connected to an upper end output shaft of the motor (11), the driving frame (7) is rotatably penetrated through threads, the left end of the driving frame (7) is fixedly connected with a guide block (13), the inner wall of the vertical end of the fixed frame (1) is provided with a guide groove (1-1), the guide block (13) is arranged in the guide groove (1-1) in an up-and-down sliding manner, the bottom of the base (2) is fixedly connected with a guide frame (6), the guide frame (6) is arranged on the right side of the second boss (5), the bottom of the guide frame (6) is provided with a slot (6-1), the top end of the vertical end of the driving frame (7) is inserted into the slot (6-1), the front side and the rear side of the slot (6-1) are respectively provided with a limiting groove (6-2), the front side and the rear side of the vertical end of the driving frame (7) are respectively and fixedly connected with a support shaft (14), and the support shafts (14); the water collecting barrel (8) is fixedly connected to the horizontal end of the fixing frame (1), the water collecting barrel (8) is arranged on the lower right side of the base (2), a water pump (15) is arranged on the left side of the water collecting barrel (8), the water pump (15) is fixed to the fixing frame (1), the water inlet end of the water pump (15) is communicated with the water collecting barrel (8) through a water pipe, a water outlet pipe (16) is fixedly connected to the water outlet end of the water pump (15), the water outlet pipe (16) is arranged on the left side of the fixing frame (1) after penetrating through the vertical end of the fixing frame (1), an extension pipe (17) is communicated with the upper end of the water outlet pipe (16), a plurality of spray heads (9) are arranged on the right side of the extension pipe (17) in a screwed; the vertical end front side fixedly connected with control box of mount (1), the battery and the solar panel component (3) in the control box are connected, and motor (11), water pump (15) are connected with the battery in the control box.
2. The solar photovoltaic panel assembly of claim 1, wherein: the filter device is characterized in that a filter frame (18) is arranged in the water collecting cylinder (8), sliding grooves (8-1) are symmetrically formed in the inner annular wall of the water collecting cylinder (8), sliding blocks (19) are fixedly connected to the outer annular wall of the filter frame (18) in a bilateral symmetry mode, the sliding blocks (19) are arranged in the sliding grooves (8-1) in a sliding mode, and a filter screen (20) is fixedly embedded in the filter frame (18).
3. The solar photovoltaic panel assembly of claim 1, wherein: the right side bottom of water collection section of thick bamboo (8) inlay to be established and be fixed with drain pipe (21), be provided with the water valve on drain pipe (21).
4. The solar photovoltaic panel assembly of claim 1, wherein: the top end of the screw rod (12) is fixedly connected with a bulge (22).
5. The solar photovoltaic panel assembly of claim 1, wherein: the outer wall of the water collecting barrel (8) is fixedly connected with a liquid level sensor (23), and the liquid level sensor (23) is connected with a storage battery in the control box.
CN201911397871.0A 2019-12-30 2019-12-30 Solar photovoltaic panel assembly Pending CN111384892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911397871.0A CN111384892A (en) 2019-12-30 2019-12-30 Solar photovoltaic panel assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911397871.0A CN111384892A (en) 2019-12-30 2019-12-30 Solar photovoltaic panel assembly

Publications (1)

Publication Number Publication Date
CN111384892A true CN111384892A (en) 2020-07-07

Family

ID=71218527

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911397871.0A Pending CN111384892A (en) 2019-12-30 2019-12-30 Solar photovoltaic panel assembly

Country Status (1)

Country Link
CN (1) CN111384892A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115140258A (en) * 2022-06-30 2022-10-04 中广核新能源蚌埠有限公司 Photovoltaic connecting device, water surface floating type photovoltaic power generation system and installation method
CN117118328A (en) * 2023-08-21 2023-11-24 温州港宏新能源有限公司 Solar photovoltaic monitoring equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115140258A (en) * 2022-06-30 2022-10-04 中广核新能源蚌埠有限公司 Photovoltaic connecting device, water surface floating type photovoltaic power generation system and installation method
CN117118328A (en) * 2023-08-21 2023-11-24 温州港宏新能源有限公司 Solar photovoltaic monitoring equipment
CN117118328B (en) * 2023-08-21 2024-02-13 温州港宏新能源有限公司 Solar photovoltaic monitoring equipment

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Application publication date: 20200707