CN106911295B - A kind of photovoltaic board mount with folder function - Google Patents

A kind of photovoltaic board mount with folder function Download PDF

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Publication number
CN106911295B
CN106911295B CN201710218120.2A CN201710218120A CN106911295B CN 106911295 B CN106911295 B CN 106911295B CN 201710218120 A CN201710218120 A CN 201710218120A CN 106911295 B CN106911295 B CN 106911295B
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CN
China
Prior art keywords
support frame
shaft
supporting plate
board mount
pedestal
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CN201710218120.2A
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Chinese (zh)
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CN106911295A (en
Inventor
李玉盛
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DTYPV CO., LTD.
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Dtypv Co Ltd
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Priority to CN201710218120.2A priority Critical patent/CN106911295B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/30Supporting structures being movable or adjustable, e.g. for angle adjustment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00Arrangements for moving or orienting solar heat collector modules
    • F24S30/40Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/48Arrangements for moving or orienting solar heat collector modules for rotary movement with three or more rotation axes or with multiple degrees of freedom
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/30Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/47Mountings or tracking
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [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 present invention relates to a kind of photovoltaic board mount with folder function, including pedestal, the regulating mechanism being set on the base and the fold mechanism being arranged on regulating mechanism, regulating mechanism includes the first support frame, the first supporting plate, the second supporting plate and Linear Driving component, adjusting fold mechanism includes the second support frame, third support frame, first rotating shaft, the second shaft, third shaft and telescopic component, telescopic component includes cylinder and connecting rod, and Linear Driving component includes driving motor, lead screw, limiting slot and sliding block.In the photovoltaic board mount with folder function, regulating mechanism can automatically adjust angle according to position of sun, and the photovoltaic panel being disposed thereon is made to receive more solar radiation energies.Fold mechanism may be implemented to fold the photovoltaic panel being disposed thereon in particular time and collapse, and prevent photovoltaic plate surface contaminated and corrosion, which can use at night or rainy days.

Description

A kind of photovoltaic board mount with folder function
Technical field
The present invention relates to field of photovoltaic power generation, in particular to a kind of photovoltaic board mount with folder function.
Background technique
Photovoltaic power generation is the photovoltaic effect using interface and luminous energy is directly translated into a kind of skill of electric energy Art.Photovoltaic power generation has mainly used photovoltaic panel assembly, and photovoltaic panel assembly is that a kind of exposure will generate direct current in the sun Power generator is made of almost all with thin body solid photovoltaic cell made of semiconductor material.
There are many factors of existing photovoltaic panel assembly incident photon-to-electron conversion efficiency, irradiating angle, photovoltaic plate surface including the sun Cleanliness etc..For the irradiating angle problem with the sun, optimal settling mode is exactly to have photovoltaic panel automatically according to too Positive position adjusts the function of angle.And the cleanliness issues of photovoltaic plate surface are directed to, optimal settling mode is to make photovoltaic panel With self-cleaning function or auto-folder function, i.e., stash at night or rainy weather auto-folder.
Summary of the invention
The technical problem to be solved by the present invention is to:For overcome the deficiencies in the prior art, it provides a kind of with folder function Photovoltaic board mount.
It is of the present invention solve the problems, such as used by technical solution be:A kind of photovoltaic board mount with folder function, including bottom Seat, the regulating mechanism being set on the base and the fold mechanism being arranged on regulating mechanism;
The regulating mechanism includes the first support frame, the first supporting plate, the second supporting plate and Linear Driving component, the linear drive Dynamic component is set on the base, and first support frame is rectangular frame, and the side of first support frame passes through the first supporting plate Connect with Linear Driving component, one end of first supporting plate and the first support frame are hinged, the other end of first supporting plate with The other side of Linear Driving member hinges, first support frame is connect by the second supporting plate with pedestal, and second supporting plate is perpendicular To setting, one end of second supporting plate and the first support frame are hinged, and the other end of second supporting plate is fixedly connected with pedestal;
The adjusting fold mechanism includes the second support frame, third support frame, first rotating shaft, the second shaft, third shaft And telescopic component, sliding slot is equipped on two opposite inner walls of first support frame, two sliding slots are symmetrical arranged, institute It states the second support frame and third support frame is hinged with first rotating shaft, second support frame and third support frame are about first turn Axial symmetry setting, the side of second support frame and first rotating shaft are hinged, the other side of second support frame and second turn Axis is hinged, and the side of the third support frame and first rotating shaft are hinged, and the other side of the third support frame and third shaft are cut with scissors It connects, the both ends of second support frame and third support frame are located in two sliding slots, second support frame and Three support frames are slidably connected with sliding slot, and the first rotating shaft, the second shaft and third shaft are horizontally disposed, and described second turn Axis and third shaft are arranged in parallel with first rotating shaft, and the first rotating shaft is connect by telescopic component with pedestal;
The telescopic component includes cylinder and connecting rod, and the cylinder is set on the base, and the connecting rod is vertically arranged, described One end of connecting rod and the output axis connection of cylinder, the other end and first rotating shaft of the connecting rod are hinged.
Preferably, the accuracy in order to guarantee Linear Driving component, the upper surface of the pedestal is equipped with groove, the line Property driving assembly is located in groove, and the Linear Driving component includes driving motor, lead screw, limiting slot and sliding block, the lead screw It is coaxially disposed with the output shaft of driving motor, the driving motor driving lead screw rotation, there are two the limiting slots, two limits Slot is symmetricly set on two opposite inner walls of groove, and the both ends of the sliding block are located in two limiting slots, institute Sliding block is stated equipped with through-hole, the through-hole is equipped with internal screw thread, and the internal screw thread is matched with lead screw, and the lead screw passes through through-hole, institute It is hinged with sliding block to state the first supporting plate.
Preferably, in order to accurately control motor, the driving motor is servo motor.
Preferably, in order to which the angle of the first support frame, the adjusting machine can be automatically adjusted according to sunlight irradiating angle Structure further includes optical sensor, and the optical sensor is electrically connected with driving motor.
Preferably, in order to can when raining heavily fold mechanism automatic work, by the second support frame and third support frame Opposite folding, with photovoltaic panel of the protection setting on the second support frame and third support frame, the fold mechanism further includes that rainfall passes Sensor, the precipitation rain fall sensor are electrically connected with cylinder.
Preferably, the upper surface of second support frame and third support frame is equipped with sealing for preferably waterproof Item.Prevent water from penetrating into when the second support frame and third support frame doubling.
Preferably, in order to improve leakproofness, the making material of the sealing strip is rubber.
Preferably, in order to make the angle of regulation range for the photovoltaic panel being arranged on the second support frame and third support frame more Extensively, the lower section of the pedestal is equipped with rotating mechanism.
Preferably, the rotating mechanism includes support, the in order to improve the accuracy of rotating mechanism and have self-locking performance Four shafts, worm gear, worm screw and rotating electric machine, the lower end surface of the pedestal pass through the upper end for the 4th shaft and support being vertically arranged The junction of face connection, the 4th shaft and support is equipped with bearing, and the worm gear is set in the 4th shaft, the electric rotating The upper surface of support, the rotating electric machine driving worm screw rotation, the worm and wheel engagement is arranged in machine.
Preferably, in order to improve solidness and corrosion resistance, first support frame, the second support frame and third support The making material of frame is stainless steel.
The invention has the advantages that this has the photovoltaic panel support Design of folder function ingenious, feasibility is high, adjusts machine Structure can automatically adjust angle according to position of sun, and the photovoltaic panel being disposed thereon is made to receive more solar radiation energies. Fold mechanism may be implemented to fold the photovoltaic panel being disposed thereon in particular time and collapse, and prevent photovoltaic plate surface dirty Dye and corrosion, the function can use at night or rainy days.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of photovoltaic board mount with folder function of the invention.
Fig. 2 is a kind of top view of photovoltaic board mount with folder function of the invention.
Fig. 3 is a kind of front view of photovoltaic board mount with folder function of the invention.
Fig. 4 is that the connection of the Linear Driving component and pedestal of a kind of photovoltaic board mount with folder function of the invention is shown It is intended to.
Fig. 5 is a kind of structural schematic diagram of the sliding block of photovoltaic board mount with folder function of the invention.
In figure:1. pedestal, 2. first support frames, 3. first supporting plates, 4. second supporting plates, 5. second support frames, 6. third branch Support, 7. first rotating shafts, 8. second shafts, 9. third shafts, 10. sliding slots, 11. cylinders, 12. connecting rods, 13. grooves, 14. drivings Motor, 15. lead screws, 16. limiting slots, 17. sliding blocks, 18. through-holes, 19. supports, 20. the 4th shafts, 21. worm gears, 22. worm screws, 23. rotating electric machine.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figs. 1-5, a kind of photovoltaic board mount with folder function, including pedestal 1, the tune being arranged on pedestal 1 Section mechanism and the fold mechanism being arranged on regulating mechanism;
The regulating mechanism includes the first support frame 2, the first supporting plate 3, the second supporting plate 4 and Linear Driving component, the line Property driving assembly be arranged on pedestal 1, first support frame 2 is rectangular frame, and the side of first support frame 2 passes through the One supporting plate 3 is connect with Linear Driving component, and one end of first supporting plate 3 and the first support frame 2 are hinged, first supporting plate 3 The other end and Linear Driving member hinges, the other side of first support frame 2 connect by the second supporting plate 4 with pedestal 1, institute State that the second supporting plate 4 is vertically arranged, one end of second supporting plate 4 and the first support frame 2 are hinged, second supporting plate 4 it is another End is fixedly connected with pedestal 1;
The adjusting fold mechanism includes the second support frame 5, third support frame 6, first rotating shaft 7, the second shaft 8, third Shaft 9 and telescopic component are equipped with sliding slot 10, two sliding slots 10 on two opposite inner walls of first support frame 2 It is symmetrical arranged, second support frame 5 and third support frame 6 are hinged with first rotating shaft 7, second support frame 5 and third Support frame 6 is symmetrical arranged about first rotating shaft 7, and the side of second support frame 5 and first rotating shaft 7 are hinged, and described second The other side of support 5 and the second shaft 8 are hinged, and the side of the third support frame 6 and first rotating shaft 7 are hinged, the third branch The other side of support 6 and third shaft 9 are hinged, and the both ends of second support frame 5 and third support frame 6 are located at two institutes It states in sliding slot 10, second support frame 5 and third support frame 6 are slidably connected with sliding slot 10, the first rotating shaft 7, second Shaft 8 and third shaft 9 are horizontally disposed, and second shaft 8 and third shaft 9 are arranged in parallel with first rotating shaft 7, described First rotating shaft 7 is connect by telescopic component with pedestal 1;
The telescopic component includes cylinder 11 and connecting rod 12, and the cylinder 11 is arranged on pedestal 1, and the connecting rod 12 is vertical Setting, one end of the connecting rod 12 and the output axis connection of cylinder 11, the other end and first rotating shaft 7 of the connecting rod 12 are hinged.
Preferably, the accuracy in order to guarantee Linear Driving component, the upper surface of the pedestal 1 is equipped with groove 13, institute It states Linear Driving component to be located in groove 13, the Linear Driving component includes driving motor 14, lead screw 15, limiting slot 16 and slides The output shaft of block 17, the lead screw 15 and driving motor 14 is coaxially disposed, and the driving motor 14 drives lead screw 15 to rotate, described There are two limiting slots 16, and two limiting slots 16 are symmetricly set on two opposite inner walls of groove 13, and the two of the sliding block 17 End is located in two limiting slots 16, and the sliding block 17 is equipped with through-hole 18, and the through-hole 18 is equipped with internal screw thread, described Internal screw thread is matched with lead screw 15, and the lead screw 15 passes through through-hole 18, and first supporting plate 3 and sliding block 17 are hinged.
Preferably, in order to accurately control motor, the driving motor 14 is servo motor.
Preferably, in order to which the angle of the first support frame 2, the adjusting machine can be automatically adjusted according to sunlight irradiating angle Structure further includes optical sensor, and the optical sensor is electrically connected with driving motor 14.
Preferably, in order to can when raining heavily fold mechanism automatic work, by the second support frame 5 and third support frame 6 opposite foldings, with photovoltaic panel of the protection setting on the second support frame 5 and third support frame 6, the fold mechanism further includes rainfall Sensor, the precipitation rain fall sensor are electrically connected with cylinder 11.
Preferably, the upper surface of second support frame 5 and third support frame 6 is equipped with close for preferably waterproof Strip of paper used for sealing.Prevent water from penetrating into when the second support frame 5 and third 6 doubling of support frame.
Preferably, in order to improve leakproofness, the making material of the sealing strip is rubber.
Preferably, the angle of regulation range in order to make the photovoltaic panel being arranged on the second support frame 5 and third support frame 6 Wider, the lower section of the pedestal 1 is equipped with rotating mechanism.
Preferably, in order to improve the accuracy of rotating mechanism and have self-locking performance, the rotating mechanism include support 19, 4th shaft 20, worm gear 21, worm screw 22 and rotating electric machine 23, the lower end surface of the pedestal 1 pass through the 4th shaft being vertically arranged 20 connect with the upper surface of support 19, and the 4th shaft 20 and the junction of support 19 are equipped with bearing, and the worm gear 21 is arranged In the 4th shaft 20, the upper surface of support 19 is arranged in the rotating electric machine 23, and the rotating electric machine 23 drives 22 turns of worm screw Dynamic, the worm screw 22 engages with worm gear 21.
Preferably, in order to improve solidness and corrosion resistance, first support frame 2, the second support frame 5 and third branch The making material of support 6 is stainless steel.
The photovoltaic board mount with folder function can install two pieces of photovoltaic panels.Two pieces of photovoltaic panels are separately mounted to second On support frame 5 and third support frame 6.The working principle of regulating mechanism is:Pass through the bottom of the first supporting plate of Linear Driving Component driver 3 Portion is mobile, since one end of the first supporting plate 3 and the first support frame 2 are hinged, in the other end and Linear Driving component of the first supporting plate 3 Sliding block 17 it is hinged, and because one end of the second supporting plate 4 and the first support frame 2 are hinged, the other end and pedestal 1 of the second supporting plate 4 It is fixedly connected, therefore Linear Driving component is by driving the linear movement of sliding block 17 can be with the level of the first support frame 2 of realization Overturning.The working principle of Linear Driving component is:Under the limit of limiting slot 16, driving motor 14 drives sliding block 17 along lead screw 15 axial movement.The working principle of fold mechanism is:When normal operating conditions, make the second support frame 5 by adjusting cylinder 11 It is in the same plane with third support frame 6, when needing to collapse photovoltaic panel, cylinder 11 passes through connecting rod 12 for first rotating shaft 7 toward drop-down, and since the side of the second support frame 5 and first rotating shaft 7 are hinged, the other side of the second support frame 5 and the second shaft 8 are cut with scissors Connect, and the side of third support frame 6 and first rotating shaft 7 are hinged, the other side of third support frame 6 and third shaft 9 are hinged, by because It is located in two sliding slots 10 for the both ends of the second support frame 5 and third support frame 6, so when first rotating shaft 7 declines When, the second support frame 5 and third support frame 6 will be protected to folding up so that the photovoltaic panel being disposed thereon be hidden.
Compared with prior art, this has the photovoltaic panel support Design of folder function ingenious, and feasibility is high, and regulating mechanism can To automatically adjust angle according to position of sun, the photovoltaic panel being disposed thereon is made to receive more solar radiation energies.It folds Mechanism may be implemented to fold the photovoltaic panel being disposed thereon in particular time and collapse, prevent photovoltaic plate surface contaminated and Corrosion, the function can use at night or rainy days.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.

Claims (10)

1. a kind of photovoltaic board mount with folder function, which is characterized in that including pedestal (1), the tune being arranged on pedestal (1) Section mechanism and the fold mechanism being arranged on regulating mechanism;
The regulating mechanism includes the first support frame (2), the first supporting plate (3), the second supporting plate (4) and Linear Driving component, described Linear Driving component be arranged on pedestal (1), first support frame (2) be rectangular frame, the one of first support frame (2) Side is connect by the first supporting plate (3) with Linear Driving component, one end of first supporting plate (3) with the first support frame (2) hingedly, The other side of the other end and Linear Driving member hinges of first supporting plate (3), first support frame (2) passes through second Plate (4) is connect with pedestal (1), and second supporting plate (4) is vertically arranged, one end of second supporting plate (4) and the first support frame (2) hingedly, the other end of second supporting plate (4) is fixedly connected with pedestal (1);
The adjusting fold mechanism include the second support frame (5), third support frame (6), first rotating shaft (7), the second shaft (8), Third shaft (9) and telescopic component are equipped with sliding slot (10) on two opposite inner walls of first support frame (2), two The sliding slot (10) is symmetrical arranged, second support frame (5) and third support frame (6) with first rotating shaft (7) hingedly, it is described Second support frame (5) and third support frame (6) are symmetrical arranged about first rotating shaft (7), the side of second support frame (5) with First rotating shaft (7) hingedly, the other side of second support frame (5) and the second shaft (8) hingedly, the third support frame (6) Side and first rotating shaft (7) hingedly, the other side of the third support frame (6) and third shaft (9) hingedly, described second The both ends of support (5) and third support frame (6) are located in two sliding slots (10), second support frame (5) and the Three support frames (6) are slidably connected with sliding slot (10), the first rotating shaft (7), the second shaft (8) and third shaft (9) equal water Flat setting, second shaft (8) and third shaft (9) are arranged in parallel with first rotating shaft (7), and the first rotating shaft (7) is logical Telescopic component is crossed to connect with pedestal (1);
The telescopic component includes cylinder (11) and connecting rod (12), and the cylinder (11) is arranged on pedestal (1), the connecting rod (12) vertically arranged, the output axis connection of one end of the connecting rod (12) and cylinder (11), the other end of the connecting rod (12) with First rotating shaft (7) is hinged.
2. as described in claim 1 with the photovoltaic board mount of folder function, which is characterized in that the upper end of the pedestal (1) Face is equipped with groove (13), and the Linear Driving component is located in groove (13), and the Linear Driving component includes driving motor (14), lead screw (15), limiting slot (16) and sliding block (17), the lead screw (15) and the output shaft of driving motor (14) are coaxially set It sets, driving motor (14) driving lead screw (15) rotation, there are two the limiting slots (16), and two limiting slots (16) symmetrically set It sets on two opposite inner walls of groove (13), the both ends of the sliding block (17) are located at two limiting slots (16) Interior, the sliding block (17) is equipped with through-hole (18), and the through-hole (18) is equipped with internal screw thread, the internal screw thread and lead screw (15) Match, the lead screw (15) passes through through-hole (18), and first supporting plate (3) and sliding block (17) are hinged.
3. as claimed in claim 2 with the photovoltaic board mount of folder function, which is characterized in that the driving motor (14) is Servo motor.
4. as claimed in claim 3 with the photovoltaic board mount of folder function, which is characterized in that the regulating mechanism further includes Optical sensor, the optical sensor are electrically connected with driving motor (14).
5. as described in claim 1 with the photovoltaic board mount of folder function, which is characterized in that the fold mechanism further includes Precipitation rain fall sensor, the precipitation rain fall sensor are electrically connected with cylinder (11).
6. as described in claim 1 with the photovoltaic board mount of folder function, which is characterized in that second support frame (5) Sealing strip is equipped with the upper surface of third support frame (6).
7. as claimed in claim 6 with the photovoltaic board mount of folder function, which is characterized in that the production material of the sealing strip Material is rubber.
8. as described in claim 1 with the photovoltaic board mount of folder function, which is characterized in that the lower section of the pedestal (1) Equipped with rotating mechanism.
9. as claimed in claim 8 with the photovoltaic board mount of folder function, which is characterized in that the rotating mechanism includes branch Seat (19), the 4th shaft (20), worm gear (21), worm screw (22) and rotating electric machine (23), the lower end surface of the pedestal (1) pass through perpendicular The 4th shaft (20) being directly arranged is connect with the upper surface of support (19), the junction of the 4th shaft (20) and support (19) Equipped with bearing, the worm gear (21) is set in the 4th shaft (20), and the rotating electric machine (23) is arranged in the upper of support (19) End face, rotating electric machine (23) driving worm screw (22) rotation, the worm screw (22) are engaged with worm gear (21).
10. as described in claim 1 with the photovoltaic board mount of folder function, which is characterized in that first support frame (2), the making material of the second support frame (5) and third support frame (6) is stainless steel.
CN201710218120.2A 2017-04-05 2017-04-05 A kind of photovoltaic board mount with folder function Active CN106911295B (en)

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CN112448671B (en) * 2020-11-17 2023-08-04 国网江苏省电力有限公司盐城供电分公司 Solar photovoltaic panel capable of being automatically folded and unfolded in rainy days
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CN106100550A (en) * 2016-06-06 2016-11-09 武汉理工大学 A kind of portable type solar energy cell panel charging device
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