CN109546956B

CN109546956B - Photovoltaic panel protection device

Info

Publication number: CN109546956B
Application number: CN201811612083.4A
Authority: CN
Inventors: 赵建光
Original assignee: Hebei Institute of Mechanical and Electrical technology
Current assignee: Dragon Totem Technology Hefei Co ltd; Hunan Xinsun New Energy Technology Co.,Ltd.
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-04-21
Anticipated expiration: 2038-12-27
Also published as: CN109546956A

Abstract

The invention provides a photovoltaic panel protection device, which belongs to the technical field of electric photovoltaic, and comprises an installation frame, a photovoltaic panel and a control device, wherein the installation frame is installed at the top of a roof and is positioned at the upper end of the photovoltaic panel; the winding drum is fixedly arranged on the mounting frame, and an opening is formed in one side of the winding drum; the rotating shaft is rotationally arranged along the axial direction of the winding drum; the motor is used for driving the rotating shaft to rotate; the upper end of the protective net rack is a fixed end, the lower end of the protective net rack is a movable end, the fixed end is fixedly arranged on the mounting frame, and the movable end is arranged above the photovoltaic panel in a telescopic mode and used for covering the photovoltaic panel to protect the photovoltaic panel; the driving mechanism is positioned on one side of the photovoltaic panel, is in rotating fit with the rotating shaft and is used for driving the movable end of the protective net rack to stretch; the upper end of the waterproof cloth is fixedly arranged on a rotating shaft in the winding drum through an opening, and the lower end of the waterproof cloth is connected with the movable end of the protection net rack and used for covering the photovoltaic panel protected above the protection net rack. The photovoltaic panel protection device provided by the invention solves the problem that the photovoltaic panel is damaged due to the impact of rainwater, strong wind or hail.

Description

Photovoltaic panel protection device

Technical Field

The invention belongs to the technical field of electric photovoltaic, and particularly relates to a photovoltaic panel protection device.

Background

Photovoltaic panels are power generation devices that produce direct current upon exposure to sunlight, and consist of thin solid photovoltaic cells made almost entirely of semiconductor materials. Simple photovoltaic cells can provide energy for watches and computers, and more complex photovoltaic systems can provide lighting for houses and supply power to the grid.

The roof is usually called a photovoltaic power generation system attached to a building, but the photovoltaic panel is usually placed outdoors, is difficult to pack, and is easy to damage after being corroded by rainwater, impacted by strong wind and sundries or impacted by hail for a long time.

Disclosure of Invention

The invention aims to provide a photovoltaic panel protection device, and aims to solve the problem that a photovoltaic panel used for a roof is easy to damage due to long-term rainwater corrosion, impact of strong wind and sundries or impact of hailstones.

In order to achieve the purpose, the invention adopts the technical scheme that: provided is a photovoltaic panel protection device including:

the mounting frame is used for being mounted at the top of the roof and positioned at the upper end of the photovoltaic panel;

the winding drum is fixedly arranged on the mounting frame, and an opening is formed in one side of the winding drum;

the rotating shaft is rotatably arranged along the axial direction of the winding drum;

the motor is used for driving the rotating shaft to rotate;

the upper end of the protective net rack is a fixed end, the lower end of the protective net rack is a movable end, the fixed end is fixedly arranged on the mounting rack, and the movable end is arranged above the photovoltaic panel in a telescopic mode and used for covering the photovoltaic panel to protect the photovoltaic panel;

the driving mechanism is positioned on one side of the photovoltaic panel, is in rotating fit with the rotating shaft and is used for driving the movable end of the protective net rack to stretch; and

the waterproof cloth, the upper end passes through the opening is fixed set up in the reel in the pivot, the lower extreme with the expansion end of protection rack is connected, is used for covering the top protection photovoltaic board of protection rack.

Further, the drive mechanism includes:

the lead screw is arranged on one side of the photovoltaic panel along the telescopic direction of the protective net rack and is vertical to the rotating shaft;

the sliding block is rotatably arranged on the screw rod and is fixedly connected with the movable end of the protective net rack; and

the linkage structure is arranged at the upper end of the screw rod, and the rotating shaft drives the screw rod to rotate along the axial direction through the linkage structure.

Further, the linkage structure includes:

the first bevel gear is fixedly arranged on the rotating shaft and is coaxial with the rotating shaft; and

the second bevel gear is fixedly arranged at one end of the screw rod, is coaxial with the screw rod and is meshed with the first bevel gear;

and the first bevel gear and the second bevel gear are meshed and matched to convert the axial rotation of the rotating shaft into the axial rotation of the lead screw.

Further, actuating mechanism's quantity is two, is located the both sides of photovoltaic board, respectively with pivot normal running fit is used for synchronous drive the protection rack the expansion end removes.

Further, the protection rack includes:

the number of the protective rods is multiple, and the protective rods are parallel to the rotating shaft; and

the connecting frames are a plurality of, and both ends are respectively hinged on the adjacent guard bars and are used for driving the adjacent guard bars to be close to or far away from.

Further, the link frame includes:

one end of the first connecting rod is hinged to the protective rod;

one end of the second connecting rod is hinged to the adjacent protective rod; and the other end is hinged with the first connecting rod.

Further, the protection rack still includes:

the guide rods are two in number, are positioned on the left side and the right side of the photovoltaic panel and are perpendicular to the protection rods; and

and the fixing sleeve is fixedly arranged at the two ends of the protection rod and is arranged along the guide rod in a sliding manner.

Further, the photovoltaic panel protection apparatus further includes:

an elastic frame, the upper end of which is fixedly arranged at the movable end of the protective net rack, an

The cleaning roller is arranged at the lower end of the elastic frame and used for cleaning the surface of the photovoltaic panel;

the cleaning roller is pressed on the photovoltaic panel through the elastic frame.

Further, the elastic frame includes:

the two connecting sleeves are fixedly arranged on two sides of the lower end of the movable end of the protective net rack, and two ends of the cleaning roller are rotatably arranged in the two connecting sleeves; and

the elastic pressing rod is arranged in the connecting sleeve in a telescopic mode along the length direction of the connecting sleeve and is used for pressing the cleaning roller onto the surface of the photovoltaic panel.

The photovoltaic panel protection device provided by the invention has the beneficial effects that: compared with the prior art, the photovoltaic panel protection device has the advantages that the driving mechanism is in running fit with the rotating shaft, the rotating shaft is driven by the motor to rotate, and the rotating shaft drives the movable end of the protective net rack to extend and retract along the height direction of the tripod through the driving mechanism. When meeting rainfall and hail, the motor drive pivot is rotated, the pivot passes through actuating mechanism drive protection rack and extends downwards along the tripod, and simultaneously, the waterproof cloth is outwards pulled out from the opening part of reel to the expansion end of protection rack, cover on the photovoltaic board, the waterproof cloth can avoid rain-spray photovoltaic board, protection rack net can provide the skeleton for the waterproof cloth and support, when avoiding appearing bad weather, if large granule hail or strong wind roll up the collection debris and pass through the waterproof cloth striking photovoltaic board, or strong wind blows the waterproof cloth, the waterproof cloth acutely shakes the friction photovoltaic board surface, make it impaired, avoid the photovoltaic board that uses on the roof, should suffer rainwater corruption or hail impact for a long time, and the problem of damage.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a photovoltaic panel protection apparatus according to an embodiment of the present invention;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is an enlarged view at C of FIG. 1;

FIG. 5 is an enlarged view taken at D of FIG. 2;

fig. 6 is a schematic structural view of an elastic frame and a cleaning roller of the photovoltaic panel protection apparatus according to the embodiment of the present invention.

In the figure: 1. a mounting frame; 2. a reel; 21. an opening; 3. a rotating shaft; 4. a motor; 5. a protective net frame; 51. a guard bar; 52. a connecting frame; 521. a first connecting rod; 522. a second connecting rod; 53. a guide bar; 54. fixing a sleeve; 6. a drive mechanism; 61. a lead screw; 62. a slider; 63. a linkage structure; 631. a first bevel gear; 632. a second bevel gear; 7. waterproof cloth; 8. an elastic frame; 81. connecting sleeves; 82. an elastic pressure lever; 9. a cleaning roller; 10. a photovoltaic panel.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The photovoltaic panel protection device provided by the present invention will now be described. Referring to fig. 1 to 5, the photovoltaic panel protection device includes a mounting frame 1, a winding drum 2, a rotating shaft 3, a motor 4, a protection net rack 5, a driving mechanism 6, and a waterproof cloth 7.

The mounting rack 1 is used for being mounted on the top of a roof and is positioned at the upper end of the photovoltaic panel 10; the winding drum 2 is fixedly arranged on the mounting frame 1, and an opening 21 is formed in one side of the winding drum; the rotating shaft 3 is rotationally arranged along the axial direction of the winding drum 2; the motor 4 is used for driving the rotating shaft 3 to rotate; the upper end of the protective net rack 5 is a fixed end, the lower end of the protective net rack is a movable end, the fixed end is fixedly arranged on the mounting rack 1, and the movable end is arranged above the photovoltaic panel 10 in a telescopic mode and used for covering the photovoltaic panel 10 to protect the photovoltaic panel 10; the driving mechanism 6 is positioned on one side of the photovoltaic panel 10, is in running fit with the rotating shaft 3 and is used for driving the movable end of the protective net rack 5 to stretch; the upper end of waterproof cloth 7 is fixedly arranged on the rotating shaft 3 in the winding drum 2 through an opening 21, and the lower end of the waterproof cloth is connected with the movable end of the protection net rack 5 and used for covering the photovoltaic panel 10 above the protection net rack 5.

In order to obtain a better illumination effect, when the photovoltaic panel 10 is installed on the roof, the photovoltaic panel 10 is installed on the side of the tripod facing the sun through tripod installation, so that the photovoltaic panel 10 is inclined to face the sun. Mounting bracket 1 is L shape support, through bolt fixed mounting in the high point on roof, is located the top of photovoltaic board 10, and reel 2 is cylindrical tubular structure, and the welding of mounting bracket 1's upper end has the connecting plate, and on 2 horizontal welded fastening of reel were in the connecting plate, opening 21 had been seted up along its length direction to the lateral wall of reel 2, and opening 21 is located the top of photovoltaic board 10 towards one side of photovoltaic board 10, and opening 21's direction and photovoltaic board 10 lay the face parallel.

Install pivot 3 along its axial through the bearing rotation in the reel 2, the both sides wall of reel 2 is run through at 3 both ends of pivot, and the drive end of motor 4 is connected to the one end of the reel 2 of wearing out of pivot 3, and the other end passes through the bearing frame rotation to be installed in the outside of cylinder, and opening 21 is passed through to the upper end of waterproof cloth 7, uses on screw or buckle are fixed in the pivot 3 in reel 2. Protection rack 5 is located between photovoltaic board 10 and the waterproof cloth 7, and the upper end of protection rack 5 is the stiff end, installs on mounting bracket 1 through the U-shaped card, and the lower extreme of protection rack is the expansion end, with the lower extreme fixed connection of waterproof cloth 7.

Actuating mechanism

6 and 3 normal running fit of pivot, pivot 3 rotate under the motor 4 drive, and pivot 3 passes through actuating mechanism 6 and drives the expansion end of protection rack 5 and stretch out and draw back along the direction of height of tripod. When meetting rainfall and hail, motor 4 drive pivot 3 rotates, pivot 3 passes through actuating mechanism 6 drive protection rack 5 and extends downwards along the tripod, and simultaneously, protection rack 5's expansion end outwards pulls out waterproof cloth 7 from reel 2's opening 21 department, cover on photovoltaic board 10, waterproof cloth 7 can avoid rain-proof photovoltaic board 10, protection rack net can provide the skeleton support for waterproof cloth 7, when avoiding appearing bad weather, hit photovoltaic board 10 through waterproof cloth 7 if large granule hail, strong wind blows waterproof cloth 7, waterproof cloth 7 acutely shakes the friction photovoltaic board 10 surface, make it impaired. After weather improves, 4 antiport of motor, protection rack 5 shrink, and 3 accomodate waterproof cloth 7 to reel 2 in with pivot simultaneously.

Compared with the prior art, the photovoltaic panel protection device provided by the invention has the advantages that the driving mechanism 6 is in running fit with the rotating shaft 3, the rotating shaft 3 is driven by the motor 4 to rotate, and the rotating shaft 3 drives the movable end of the protective net rack 5 to stretch along the height direction of the tripod through the driving mechanism 6. When meeting rainfall and hail, motor 4 drive pivot 3 rotates, pivot 3 passes through actuating mechanism 6 drive protection rack 5 and extends downwards along the tripod, and simultaneously, the tarpaulin 7 is outwards pulled out from the opening 21 of reel 2 to the expansion end of protection rack 5, cover on photovoltaic board 10, tarpaulin 7 can avoid drenching photovoltaic board 10, protection rack net can provide the skeleton support for tarpaulin 7, when avoiding appearing bad weather, if large granule hail or strong wind roll up the collection debris and pass through tarpaulin 7 striking photovoltaic board 10, or strong wind blows tarpaulin 7, tarpaulin 7 acutely shakes the friction photovoltaic board 10 surface, make it impaired, avoid the photovoltaic board 10 that the roof used, should suffer rainwater corrosion or hail impact for a long time, and the problem of damage.

Referring to fig. 1 to 5, as an embodiment of the present invention, the driving mechanism 6 includes a screw 61, a slider 62 and a linkage 63.

The screw rod 61 is arranged on one side of the photovoltaic panel 10 along the telescopic direction of the protective net rack 5 and is vertical to the rotating shaft 3; the slide block 62 is rotationally arranged on the screw rod 61 and is fixedly connected with the movable end of the protective net rack 5; the linkage structure 63 is disposed at the upper end of the screw 61, and the rotating shaft 3 drives the screw 61 to rotate along the axial direction through the linkage structure 63.

In this embodiment, lead screw 61's outside cover is equipped with the protection casing, the bearing frame installation at lead screw 61 through both ends in the protection casing, it installs slider 62 to rotate on the lead screw 61, one side that slider 62 is close to photovoltaic board 10 is connected with the connecting rod, the expansion end welded fastening of connecting rod and protection rack 5, the groove of stepping down has been seted up to one side that the protection casing is close to photovoltaic board 10, provide the stepping down when the axial displacement of lead screw 61 is followed to branch, the protection casing is worn out to lead screw 61's upper end and is equipped with interlock structure 63, lead screw 61 passes through interlock structure 63 normal running fit pivot 3, the axis that makes pivot 3 rotates the axial rotation.

Referring to fig. 4, as an embodiment of the present invention, the linking structure 63 includes a first bevel gear 631 and a second bevel gear 632.

The first bevel gear 631 is fixedly arranged on the rotating shaft 3 and is coaxial with the rotating shaft 3; the second bevel gear 632 is fixedly arranged at one end of the screw 61, is coaxial with the screw 61, and is engaged with the first bevel gear 631; the axial rotation of the rotating shaft 3 is converted into the axial rotation of the lead screw 61 by the meshing engagement of the first bevel gear 631 and the second bevel gear 632.

In this embodiment, the first bevel gear 631 is integrally formed with the rotating shaft 3 or fixed thereto by a bolt, the second bevel gear 632 is integrally formed with the upper end of the screw 61 or fixed thereto by a bolt, and the axial rotation of the rotating shaft 3 is converted into the axial rotation of the screw 61 by the engagement of the first bevel gear 631 and the second bevel gear 632.

Referring to fig. 1, two driving mechanisms 6 are provided, and are disposed on the left and right sides of the photovoltaic panel 10, and are respectively rotatably engaged with the rotating shaft 3 for synchronously driving the movable end of the protective net rack 5 to move.

In this embodiment, in order to guarantee the stability that protection rack 5 receive and releases, actuating mechanism 6 can respectively install one in the left and right sides of photovoltaic board 10, and two actuating mechanism 6 rotate in step, make the both ends of the expansion end of protection rack 5 atress simultaneously, guarantee that the atress is even, guarantee the stability that protection rack 5 received and releases.

Referring to fig. 1 to 2, as an embodiment of the present invention, the protective net frame 5 includes a protective rod 51 and a connecting frame 52.

The number of the guard rods 51 is multiple, and the guard rods are all arranged in parallel with the rotating shaft 3; the number of the connecting frames 52 is plural, and both ends of the connecting frames are respectively hinged on the adjacent guard bars 51 and used for driving the adjacent guard bars 51 to approach or depart from each other.

In this embodiment, the protection rod 51 is the cylinder pole, and a plurality of protection rods 51 have laid photovoltaic board 10's one side top-down mutual parallel arrangement along the tripod, and adjacent protection rod 51 connects through a plurality of link 52, and link 52 cross connection is adjacent protection rod 51 to guarantee whole protection rack 5's stability. The connecting frame 52 allows the adjacent guard bars 51 to approach and move away from each other, so that the contraction and expansion of the guard net frame 5 can be achieved.

Referring to fig. 3, the connecting frame 52 includes a first connecting rod 521 and a second connecting rod 522.

One end of the first connecting rod 521 is hinged to the guard rod 51; one end of the second connecting rod 522 is hinged to the adjacent guard bar 51; and the other end is hinged with the first connecting rod 521.

In this embodiment, the maximum distance between the adjacent guard bars 51 is the distance between the first connecting rod 521 and the second connecting rod 522 located on the same straight line, the minimum distance is the distance between the connection point of the first connecting rod 521 and the guard bar 51 and the connection point of the second connecting rod 522 and the adjacent guard bar 51 when the first connecting rod 521 and the second connecting rod 522 rotate to the limit and cannot rotate any more, in order to ensure that the rotation adjustment of the plurality of guard bars 51 through the first connecting rod 521 and the second connecting rod 522 is smoother, the maximum distance between the adjacent guard bars 51 should be smaller than the distance between the first connecting rod 521 and the second connecting rod 522 located on the same straight line, when the first connecting rod 521 and the second connecting rod 522 are located on the same straight line, the two guard bars 51 connected with the first connecting rod 521 and the second connecting rod 522 contract inward at the same time, and lateral force components for allowing the first connecting rod 521 and the second connecting rod 522 to rotate relative to each, resulting in difficulty in contracting the protective net frame 5.

Referring to fig. 1 to 3, the protective net frame 5 further includes a guide bar 53 and a fixing sleeve 54 as an embodiment of the present invention.

The number of the guide rods 53 is two, the guide rods are positioned on the left side and the right side of the photovoltaic panel 10 and are perpendicular to the protection rods 51; the fixing sleeves 54 are fixedly disposed at both ends of the guard bar 51 and slidably disposed along the guide bar 53.

In this embodiment, guide bar 53 is the cylinder pole, and fixed cover 54 passes through the bolt fastening in the both ends of fender rod 51, is equipped with the perforating hole on fixed cover 54, and fixed cover 54 passes through the perforating hole suit on guide bar 53, and when protection rack 5 was flexible, the fixed cover 54 at fender rod 51 both ends slided along guide bar 53, and stability when guaranteeing fender rod 51 and removing is avoided rocking about it.

Referring to fig. 5 to 6, as an embodiment of the present invention, the photovoltaic panel protection apparatus further includes an elastic frame 8 and a cleaning roller 9.

The upper end of the elastic frame 8 is fixedly arranged at the movable end of the protective net rack 5, and the cleaning roller 9 is arranged at the lower end of the elastic frame 8 and used for cleaning the surface of the photovoltaic panel 10; the cleaning roller 9 is pressed against the photovoltaic panel 10 by the elastic frame 8.

In this embodiment, cleaning roller 9 is cylindrical roller, and outer wall circumference bonds and has flexible brush, and when protection rack 5 expandes protection photovoltaic board 10, the lower extreme that slides to photovoltaic board 10 from the upper end of photovoltaic board 10 is followed in the drive of the expansion end of protection rack 5 to cleaning roller 9 to compress tightly in the surface of photovoltaic board 10 all the time under the effect of elastic frame 8, carry out effectual cleanness to the surface of photovoltaic board 10, get rid of debris and the dust on photovoltaic board 10 surface. When the protective net rack 5 is to be retracted, the cleaning rack slides from the lower end of the photovoltaic panel 10 to the upper end of the photovoltaic panel 10, and cleaning is completed once again.

Referring to fig. 6, as an embodiment of the present invention, the elastic frame 8 includes a connection sleeve 81 and an elastic pressing rod 82.

The number of the connecting sleeves 81 is two, the connecting sleeves are fixedly arranged on two sides of the lower end of the movable end of the protective net rack 5, and two ends of the cleaning roller 9 are rotatably arranged in the two connecting sleeves 81; the elastic pressure bar 82 is telescopically arranged in the connecting sleeve 81 along the length direction of the connecting sleeve 81 and is used for pressing the cleaning roller 9 on the surface of the photovoltaic panel 10.

In this embodiment, adapter sleeve 81 is lower extreme confined drum structure, the notch that runs through adapter sleeve 81 is seted up to adapter sleeve 81's lower part, the length direction of notch edge adapter sleeve 81 is seted up, the inner chamber of intercommunication adapter sleeve 81, the both ends of scrub roller 9 are connected with the axis of rotation respectively, two axes of rotation run through two notches respectively, the spring is installed along its length direction to adapter sleeve 81's inner chamber, the spring is in compression state, spring lower extreme butt has the clamp plate, the upper end integrated into one piece of clamp plate has the guide arm, the guide arm is worn to locate in the spring, be used for the direction, to one side bending when preventing the spring compression, the lower terminal surface of clamp plate is the cambered surface structure of indent, the radian cooperation of cambered surface and axis. When not receiving external force, cleaning roller 9 will connect the axle pressure to the lower extreme of the notch of adapter sleeve 81 through the clamp plate, when receive and release protection rack 5, the distance of photovoltaic board 10 apart from the lower terminal surface of the expansion end of protection rack 5, be less than the total length of cleaning roller 9 and adapter sleeve 81 when cleaning roller 9 presses the lower extreme of adapter sleeve 81, at this moment, cleaning roller 9 receives the pressure on photovoltaic board 10 surface, the spring shrink, compress tightly cleaning roller 9 in photovoltaic board 10 surface, thereby improve the effect of cleaning roller 9 clean photovoltaic board 10.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Photovoltaic board protection device, its characterized in that includes:

the motor is used for driving the rotating shaft to rotate;

the upper end of the rainproof cloth is fixedly arranged on the rotating shaft in the winding drum through the opening, and the lower end of the rainproof cloth is connected with the movable end of the protective net rack and is used for covering the photovoltaic panel above the protective net rack;

the cleaning roller is pressed on the photovoltaic panel through the elastic frame;

the elastic frame includes:

2. The photovoltaic panel protection device of claim 1, wherein the drive mechanism comprises:

3. The photovoltaic panel protection device according to claim 2, wherein the interlocking structure comprises:

4. The photovoltaic panel protection device according to claim 1, wherein the number of the driving mechanisms is two, and the two driving mechanisms are located on two sides of the photovoltaic panel and are respectively in rotating fit with the rotating shaft for synchronously driving the movable end of the protective net rack to move.

5. The photovoltaic panel protection device of claim 1, wherein the protective grid comprises:

6. The photovoltaic panel protection device of claim 5, wherein the connecting frame comprises:

one end of the first connecting rod is hinged to the protective rod;

7. The photovoltaic panel protection device of claim 5, wherein the protective grid further comprises: