A protective fixing device for photovoltaic modules

Abstract

The present application relates to the field of photovoltaic device, especially a kind of photovoltaic module protection fixing device.The present application provides a kind of photovoltaic module protection fixing device, including installation support and lifting slider etc.;Installation support connects lifting slider.Lifting slider rotationally connects left arm and right arm, left arm and right arm cooperate control connecting rod and pull rope to form multi-link structure, jointly connected by photovoltaic module, when encountering extreme weather, through multi-link structure, photovoltaic module can be quickly turned to eight-shaped inclined structure, not only effectively avoid the risk of photovoltaic module being turned up and being damaged by hard object, but also make the light absorption surface of folded photovoltaic module not easy to be scratched and worn by sand carried by strong wind, improve the service life of photovoltaic module;Solve the technical problem that photovoltaic module is difficult to adapt to various extreme weather.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic devices, in particular to a protective fixing device for photovoltaic modules. BACKGROUND

[0002] Photovoltaic modules are often installed in a dense manner in open areas or in a scattered manner on residential rooftops, with a wide distribution range, strong terrain adaptability, and safe and reliable power generation. However, when photovoltaic modules encounter extreme weather, there will be many safety hazards.

[0003] For example, in strong wind weather, when the installation angle of the photovoltaic module is close to parallel to the ground and the surface of the photovoltaic module is flowing through the strong wind flow, the photovoltaic module will be subjected to the upward lifting force from below, resulting in a risk of large-area upward lifting of the photovoltaic module. Photovoltaic modules with an installation angle in an inclined state are prone to being damaged by hard objects blown by strong winds. In addition, in hail weather, photovoltaic modules are also prone to being damaged by hail falling downward. Therefore, the current photovoltaic modules have the problem of being difficult to adapt to various extreme weather.

[0004] To solve this problem, Chinese patent CN219576912U discloses a flip photovoltaic support, which flips two adjacent photovoltaic modules towards each other into an overlapping state, so that the light-absorbing surfaces of the photovoltaic modules are attached to each other, and the non-light-absorbing surfaces of the photovoltaic modules are collectively outwardly resistant to flying hard objects. However, this photovoltaic support needs to set a relatively thick protective plate on the non-light-absorbing surface of the photovoltaic module to resist hard objects. This protective plate will inevitably affect the heat dissipation efficiency of the photovoltaic module during operation. In addition, in the case of emergency when extreme weather arrives, if the worker does not timely remove the foreign matter between the light-absorbing surfaces of the two adjacent photovoltaic modules, the foreign matter between the light-absorbing surfaces of the two adjacent photovoltaic modules will cause the light-absorbing surfaces of the two photovoltaic modules to be damaged by the foreign matter during the flipping and attaching process. Therefore, the flip photovoltaic support disclosed in the above patent has a large use disadvantage and cannot effectively solve the technical problem that photovoltaic modules are difficult to adapt to various extreme weather. SUMMARY

[0005] In order to overcome the shortcomings of photovoltaic modules being difficult to adapt to various extreme weather, the present application provides a protective fixing device for photovoltaic modules.

[0006] Technical solution: A kind of photovoltaic module protection fixing equipment, including installation support, lifting slider, left photovoltaic module, left rotary arm, right photovoltaic module, right rotary arm, control connecting rod and pull rope;Several lifting sliders are slidably connected on installation support;Several electric push rods are installed on installation support;The telescopic end of electric push rod is fixedly connected with corresponding lifting slider;Each lifting slider is rotatably connected with one left rotary arm by pivot respectively;Left fixed frame is rotatably connected between the left end of all left rotary arms;First torsion spring is fixedly connected between left rotary arm and left fixed frame;Left photovoltaic module is installed on left fixed frame;Left support frame is fixedly connected on installation support and provides lower support force for left rotary arm;Each lifting slider is rotatably connected with one right rotary arm by pivot respectively;Right fixed frame is rotatably connected between the right end of all right rotary arms;Second torsion spring is fixedly connected between right rotary arm and right fixed frame;Right photovoltaic module is installed on right fixed frame;Right support frame is fixedly connected on installation support and provides lower support force for right rotary arm;One control connecting rod is rotatably connected on each of two right rotary arms by pivot;The left end of control connecting rod is rotatably connected with the right side of left fixed frame;Fixed pulley is rotatably connected on the upper side of installation support;Pull rope is fixedly connected with the right side of right fixed frame;The left end of pull rope is wound on the upper surface of fixed pulley, and the left end of pull rope is fixedly connected with lifting slider.

[0007] As preferred, the pivot of left rotary arm and right rotary arm connected with lifting slider is the same pivot.

[0008] As preferred, the right side of right fixed frame is rotatably connected with upward vertical side baffle through pivot;Third torsion spring is fixedly connected between side baffle and right fixed frame.

[0009] As preferred, the upper side of side baffle is provided with dust screen.

[0010] As preferred, the left side of left fixed frame is rotatably connected with left baffle through pivot;The right side of right fixed frame is rotatably connected with right baffle through pivot.

[0011] As preferred, left baffle is provided with left ventilation hole structure;Left ventilation hole is provided with strip structure;Right baffle is provided with right ventilation hole structure.

[0012] As preferred, buffer screen is fixedly connected on left baffle.

[0013] As preferred, several rotary plates are rotatably connected on left baffle through pivot.

[0014] As preferred, the pivot of each rotary plate connected with left baffle is fixedly connected with one fourth torsion spring.

[0015] As preferred, wireless communication module is built in electric push rod.

[0016] Beneficial effects: the photovoltaic module protection and fixing device described in the application is provided with a lifting sliding block on the mounting bracket, the lifting sliding block is rotationally connected with a left rotating arm and a right rotating arm, the left rotating arm and the right rotating arm cooperatively control a connecting rod and a pull rope to form a multi-connecting rod structure, and the multi-connecting rod structure is jointly connected with a photovoltaic module composed of a left photovoltaic module and a right photovoltaic module, when extreme weather occurs, the photovoltaic module can be quickly turned to an eight-shaped inclined structure with the light-absorbing surfaces of the photovoltaic module facing each other through the simple multi-connecting rod structure, not only the risk that the photovoltaic module is turned up and damaged by hard objects can be effectively avoided, but also even if there are foreign matters between the light-absorbing surfaces of the photovoltaic module, the foreign matters will fall down between the light-absorbing surfaces of the two photovoltaic modules in a non-adhesion state, in addition, the light-absorbing surfaces of the folded photovoltaic module are not easy to be scratched and worn by sand carried by strong wind, and the service life of the photovoltaic module is improved; the technical problem that the photovoltaic module is difficult to adapt to various extreme weather is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0018] Figure 2 The first left baffle three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0019] Figure 3 The A area enlarged view of the application is described according to the embodiment;

[0020] Figure 4 The side baffle partial three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0021] Figure 5 The photovoltaic module partial three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0022] Figure 6 The left fixed frame and the right fixed frame partial three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0023] Figure 7 The first folding state three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0024] Figure 8 The second left baffle three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0025] Figure 9 The second folding state three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0026] Figure 10 The third left baffle three-dimensional structure schematic diagram of the application is described according to the embodiment;

[0027] Figure 11 A zoomed-in view of the B region of the application according to an embodiment;

[0028] Figure 12 A perspective view of a third folded state of the application according to an embodiment.

[0029] Reference signs: 1 - mounting bracket, 11 - left support frame, 12 - right support frame, 21 - lifting slider, 22 - electric push rod, 3 - left photovoltaic module, 31 - left rotating arm, 311 - first torsion spring, 32 - left fixed frame, 4 - right photovoltaic module, 41 - right rotating arm, 411 - second torsion spring, 42 - right fixed frame, 43 - control connecting rod, 44 - fixed pulley, 45 - pull rope, 5 - side baffle, 51 - dustproof net, 511 - third torsion spring, 6 - left baffle, 60 - left ventilation hole, 61 - buffer net, 62 - rotating plate, 63 - fourth torsion spring, 7 - right baffle, 70 - right ventilation hole. DETAILED DESCRIPTION

[0030] Embodiments of the application will be described in detail below with reference to the accompanying drawings. Embodiment 1

[0031] A protective fixing device for a photovoltaic module, comprising a mounting bracket, a left support frame, a right support frame, a lifting slider, an electric push rod, a left photovoltaic module, a left rotating arm, a first torsion spring, a left fixed frame, a right photovoltaic module, a right rotating arm, a second torsion spring, a right fixed frame, a control connecting rod, a fixed pulley, a pull rope, a side baffle, a dustproof net, a left baffle, a left ventilation hole, a buffer net, a rotating plate, a fourth torsion spring, a right baffle and a right ventilation hole. Figures 1-7As shown, including the mounting bracket 1, lifting slide 21, left photovoltaic module 3, left arm 31, right photovoltaic module 4, right arm 41, control link 43 and pull rope 45; The front and rear sides of the mounting bracket 1 are each slidingly connected with a lifting slide 21; Two electric push rods 22 are installed on the mounting bracket 1; The electric push rod 22 is built-in wireless communication module, wireless communication with the main control center through the wireless communication module, that is, the electric push rod 22 can be remotely started and controlled; The extension end of the two electric push rods 22 is respectively fixed to the corresponding lifting slide 21; Two left arms 31 are each rotatably connected to the left fixed frame 32 through the shaft; The left ends of the two left arms 31 are rotatably connected to the left fixed frame 32; The first torsional spring 311 is fixed between the two left arms 31 and the left fixed frame 32; The left photovoltaic module 3 is installed on the left fixed frame 32; Two left support frames 11 are bolted to the mounting bracket 1; The two left support frames 11 are respectively close to the two left arms 31; Two right arms 41 are each rotatably connected to the right fixed frame 42 through the shaft; The right ends of the two right arms 41 are rotatably connected to the right fixed frame 42; The second torsional spring 411 is fixed between the two right arms 41 and the right fixed frame 42; The right photovoltaic module 4 is installed on the right fixed frame 42; Two right support frames 12 are bolted to the mounting bracket 1; The two right support frames 12 are respectively close to the two right arms 41; Two control links 43 are each rotatably connected to the right side of the left fixed frame 32 through the shaft; Two fixed pulleys 44 are rotatably connected to the upper side of the mounting bracket 1; Two pull ropes 45 are fixed to the right side of the right fixed frame 42; The left ends of the two pull ropes 45 are respectively wound around the upper surface of the corresponding fixed pulley 44, and the left ends of the two pull ropes 45 are respectively fixed to the corresponding lifting slide 21; The shafts of the left arm 31 and the right arm 41 connected with the lifting slide 21 are the same shaft, that is, the rotation axis of the left arm 31 coincides with the rotation axis of the right arm 41.

[0032] As shown in Figure 2 and Figure 3 As shown, the right side of the right fixed frame 42 is rotatably connected to the upward vertical side baffle 5 through the shaft; The side baffle 5 and the right fixed frame 42 are fixedly connected with two third torsional springs 511; The upper side of the side baffle 5 is provided with a dust screen 51 which is higher than the upper surface area of the right fixed frame 42, which filters dust from the airflow flowing from right to left over the upper surface of the right photovoltaic module 4, and reduces the light-shielding area of the right photovoltaic module 4.

[0033] As shown in Figure 1As shown, the left side of the left fixed frame 32 is rotatably connected with the left baffle 6 through a rotating shaft, and the left baffle 6 is initially in a downward vertical state; the right side of the right fixed frame 42 is rotatably connected with the right baffle 7 through a rotating shaft, and the right baffle 7 is initially in a downward inclined state to contact the ground; a plurality of left ventilation holes 60 are formed on the left baffle 6; the left ventilation hole 60 is in a long strip structure extending in the vertical direction, effectively increasing the opening area of the left baffle 6 and reducing the obstruction of the left baffle 6 to the airflow; a plurality of right ventilation holes 70 are formed on the right baffle 7, so that the airflow can smoothly pass through the right ventilation hole 70 and flow through the lower non-light-absorbing surface of the left photovoltaic module 3 and the right photovoltaic module 4, ensuring that the lower non-light-absorbing surface of the left photovoltaic module 3 and the right photovoltaic module 4 has a high efficient heat dissipation effect.

[0034] The folding mode starting step of the photovoltaic module protection and fixing device:

[0035] The left photovoltaic module 3 and the right photovoltaic module 4 together form a photovoltaic module independent of each other, and the left rotating arm 31, the right rotating arm 41, the control connecting rod 43 and the pull rope 45 together form a multi-link structure, which controls the mode switching of the photovoltaic module. In the initial state, the left photovoltaic module 3 and the right photovoltaic module 4 are in the unfolded mode, i.e. the left photovoltaic module 3 and the right photovoltaic module 4 are both set to be inclined from the lower right to the upper left, and the left photovoltaic module 3 is located on the upper left side of the right photovoltaic module 4, so that the light-absorbing surface of the left photovoltaic module 3 and the right photovoltaic module 4 faces the sunlight, effectively increasing the sunlight absorption effect. When encountering extreme weather, the main control center sends a photovoltaic module folding mode starting instruction to all photovoltaic module protection and fixing devices through wireless communication, so that all photovoltaic module protection and fixing devices are switched to the folding mode synchronously.

[0036] First, the telescopic end of the electric push rod 22 pulls the lifting slider 21 downward. The lifting slider 21 pulls the left and right rotating arms 31 and 41 downward simultaneously via the rotating shaft, causing the left and right rotating arms 31 and 41 to move the left fixed frame 32, the right fixed frame 42, and the connected left and right photovoltaic modules 3 and 4 downward. During this process, the downward-moving left and right rotating arms 31 and 41 are blocked by the left support frame 11 and the right support frame 12, respectively, causing the left and right rotating arms 31 and 41 to move towards each other around the rotating shaft connected to the lifting slider 21. The left rotating arm 31 drives the first torsion spring 311 to twist, and the right rotating arm... 41 drives the second torsion spring 411 to twist, while the left and right rotating arms 31 and 41 drive the left fixed frame 32, the right fixed frame 42, and the connected left photovoltaic module 3 and right photovoltaic module 4 to move towards each other. At the same time, the upward rotating right arm 41 pushes the right side of the left fixed frame 32 to rotate clockwise to the left from the front view angle through the control link 43, so that the left fixed frame 32 drives the left photovoltaic module 3 to rotate clockwise from the front view angle. At the same time, the downward moving lifting slider 21 pulls the pull rope 45 to drive the right side of the right fixed frame 42 to rotate upward, so that the right fixed frame 42 drives the right photovoltaic module 4 to rotate counterclockwise from the front view angle. Figure 7 As shown, the left photovoltaic module 3 and the right photovoltaic module 4 are flipped to a figure-eight tilted structure with their light-absorbing surfaces facing each other and supporting each other. This prevents the photovoltaic modules from remaining in a horizontal tilted state in strong winds, which could cause them to tip over due to the large pressure difference between the upper and lower sides caused by strong winds. This not only effectively avoids the risk of the photovoltaic modules being flipped upwards or damaged by hard objects, but also ensures that even if there are foreign objects between the light-absorbing surfaces of the photovoltaic modules, the foreign objects will fall downwards between the two non-adhesive light-absorbing surfaces. In addition, it also makes the light-absorbing surfaces of the folded photovoltaic modules less susceptible to scratches and wear from sand and gravel carried by strong winds, thus improving the service life of the photovoltaic modules.

[0037] During the flipping process of the left photovoltaic module 3 and the right photovoltaic module 4 towards each other, the side baffle 5 on the left photovoltaic module 3 is blocked by the right photovoltaic module 4 and rotates upward, as shown. Figure 7 As shown, the side baffle 5 is positioned between the upper gaps of the left photovoltaic module 3 and the right photovoltaic module 4 to prevent sand and gravel carried by strong winds from passing through the upper gaps between the left photovoltaic module 3 and the right photovoltaic module 4 and being blown into the space between them, thus preventing the light-absorbing surfaces of the left photovoltaic module 3 and the right photovoltaic module 4 from being scratched and worn by sand and gravel.

[0038] In the clockwise turning process of the left photovoltaic module 3, the left baffle 6 rotates rightward along with the left side of the left photovoltaic module 3, covers the left side surface of the left photovoltaic module 3 turned into the inclined structure, and provides the anti-collision protection for the non-light-absorbing surface of the left photovoltaic module 3 by the left baffle 6. Meanwhile, in the counterclockwise turning process of the right photovoltaic module 4, the right baffle 7 rotates leftward along with the right side of the right photovoltaic module 4, covers the right side surface of the right photovoltaic module 4 turned into the inclined structure, and provides the anti-collision protection for the non-light-absorbing surface of the right photovoltaic module 4 by the right baffle 7.

[0039] In addition, under the normal weather at night, the photovoltaic module protection fixing device can also turn the photovoltaic module into the folding mode according to the above steps, so that the photovoltaic module is turned into the splayed inclined structure during the non-working time at night. Since the left photovoltaic module 3 and the right photovoltaic module 4 do not contact each other during the turning of the photovoltaic module into the splayed inclined structure, the foreign matters existing between the photovoltaic modules can fall downward during the turning of the photovoltaic module. Meanwhile, the airflow blown downward from the dust screen 51 between the left photovoltaic module 3 and the right photovoltaic module 4 can perform the dust removal treatment on the light-absorbing surfaces of the left photovoltaic module 3 and the right photovoltaic module 4 in the state that the light-absorbing surfaces are inclined downward. Embodiment 2

[0040] Based on the embodiment 1, as shown in Figures 1-9 The left baffle 6 of the present embodiment is fixedly connected with a buffer screen 61, which effectively buffers and intercepts the foreign matters hitting the left baffle 6 and has little influence on the airflow.

[0041] When the left baffle 6 is hit by a hard object, the hard object hitting the left baffle 6 is first intercepted by the buffer screen 61, which greatly reduces the impact force of the hard object hitting the left baffle 6, reduces the damage of the left baffle 6 caused by the hard object, and effectively prolongs the service life of the left baffle 6. Embodiment 3

[0042] Based on the embodiment 1, as shown in Figures 1-7 , and Figures 10-12 The left baffle 6 of the present embodiment is rotatably connected with a plurality of rotating plates 62 through rotating shafts. The rotating plates 62 are initially in a horizontal state, so that a large airflow flow-through space is left between the upper and lower rotating plates 62, further reducing the obstruction of the left baffle 6 to the airflow. A fourth torsional spring 63 is fixedly connected between the rotating shaft connected with each rotating plate 62 and the left baffle 6. The left baffle 6 is not easily reciprocated in the upward and downward directions under the influence of the airflow under the limitation of the fourth torsional spring 63.

[0043] In the clockwise turning process of the left photovoltaic module 3, the left baffle 6 rotates clockwise with the left side of the left photovoltaic module 3 to cover the left side surface of the left photovoltaic module 3 turned into an inclined structure, and the right end of the rotating plate 62 is pushed leftward due to the obstruction of the left photovoltaic module 3, as shown in Figure 12 Fig. 6, so that the rotating plate 62 fills the left air hole 60 on the left baffle 6, and the fourth torsion spring 63 is twisted to increase the protection area of the left photovoltaic module 3 by the left baffle 6 and the rotating plate 62.

[0044] Although embodiments of the present application have been shown and described, it is to be understood that the application is not limited to the details of the foregoing embodiment, and that the scope of the application should be limited only by the appended claims and equivalents thereof.

Claims

1. A photovoltaic module protection and fixing device, comprising: a mounting bracket (1); characterized in that Further comprising a lifting slider (21); a plurality of lifting sliders (21) are slidingly connected to the mounting bracket (1); a plurality of electric push rods (22) are installed on the mounting bracket (1); the extension end of the electric push rod (22) is fixedly connected to the corresponding lifting slider (21); each lifting slider (21) is respectively rotatably connected to a left rotating arm (31) through a rotating shaft; the left ends of all left rotating arms (31) are commonly rotatably connected to a left fixed frame (32); a first torsion spring (311) is fixedly connected between the left rotating arm (31) and the left fixed frame (32); a left photovoltaic module (3) is installed on the left fixed frame (32); a left support frame (11) is fixedly connected to the mounting bracket (1) to provide a downward supporting force for the left rotating arm (31); each lifting slider (21) is respectively rotatably connected to a right rotating arm (41) through a rotating shaft; the right ends of all right rotating arms (41) are commonly rotatably connected to a right fixed frame (42); a second torsion spring (411) is fixedly connected between the right rotating arm (41) and the right fixed frame (42); a right photovoltaic module (4) is installed on the right fixed frame (42); a right support frame (12) is fixedly connected to the mounting bracket (1) to provide a downward supporting force for the right rotating arm (41); a control connecting rod (43) is rotatably connected to each of the two right rotating arms (41) through a rotating shaft; the left end of the control connecting rod (43) is rotatably connected to the right side of the left fixed frame (32); a fixed pulley (44) is rotatably connected to the upper side of the mounting bracket (1); a pull rope (45) is fixedly connected to the right side of the right fixed frame (42); the left end of the pull rope (45) is wound around the upper surface of the fixed pulley (44), and the left end of the pull rope (45) is fixedly connected to the lifting slider (21).

2. A protective fixing device for a photovoltaic module according to claim 1, characterized in that The rotating shafts of the left rotating arm (31) and the right rotating arm (41) connected to the lifting slider (21) are the same rotating shaft.

3. The protective fixing device for a photovoltaic module according to claim 1, wherein An upward vertical side baffle (5) is rotatably connected to the right side of the right fixed frame (42) through a rotating shaft; a third torsion spring (511) is fixedly connected between the side baffle (5) and the right fixed frame (42).

4. A protective fixing device for a photovoltaic module according to claim 3, characterized in that A dust screen (51) is arranged on the upper side of the side baffle (5).

5. The protective fixture for a photovoltaic module according to claim 1, wherein A left baffle (6) is rotatably connected to the left side of the left fixed frame (32) through a rotating shaft; a right baffle (7) is rotatably connected to the right side of the right fixed frame (42) through a rotating shaft.

6. A protective fixture for a photovoltaic module according to claim 5, wherein A left air vent (60) structure is formed on the left baffle (6); the left air vent (60) is in a long strip structure; a right air vent (70) structure is formed on the right baffle (7).

7. A protective fixture for a photovoltaic module according to claim 6, characterized in that A buffer screen (61) is fixedly connected to the left baffle (6).

8. A protective fixture for a photovoltaic module according to claim 6, wherein A plurality of rotating plates (62) are rotatably connected to the left baffle (6) through rotating shafts.

9. A protective fixture for a photovoltaic module according to claim 8, characterized in that A fourth torsion spring (63) is fixedly connected between the rotating shaft of each rotating plate (62) and the left baffle (6).

10. A protective mounting device for a photovoltaic module according to any one of claims 1 to 9, characterized in that The electric push rod (22) is internally provided with a wireless communication module.

Images