Protective device of photovoltaic equipment

Abstract

The invention relates to the field of photovoltaic equipment, in particular to a protection device of photovoltaic equipment. An existing protection device is inconvenient to actively adjust the windward area, so that the wind resistance is weak, in a strong wind environment, the vibration resistance is not strong, the large-amplitude shaking is easy to occur, and finally, after the strong wind, the residual gravel and dust are inconvenient to clean. A protection device of photovoltaic equipment comprises a mounting bottom plate and the like. Three sliding rails are fixedly connected to the mounting bottom plate, a plurality of buffering pads are arranged on the sliding rails, a sliding block is connected to each sliding rail in a sliding mode, and a connecting frame is fixedly connected among the three sliding blocks. In this way, the photovoltaic panel is adjusted to be in the horizontal state in the strong wind environment, the windward area is reduced, and the wind energy is consumed through the balancing weight, so that the wind resistance of the photovoltaic equipment is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic equipment, in particular to a photovoltaic equipment protection device. BACKGROUND

[0002] The core of photovoltaic equipment is photovoltaic module (often referred to as photovoltaic panel or solar panel), which functions to convert solar energy into direct current through photoelectric effect, and in order to ensure the stable operation of photovoltaic module, a support system is needed to support and protect it. Photovoltaic equipment is often built in open areas because it needs to fully receive sunlight, but such areas are often windy and have no shelter. Strong wind directly threatens photovoltaic equipment, which can easily tip over photovoltaic panels and cause damage to the equipment.

[0003] However, the existing protection device is not convenient to actively adjust the windward area, so the wind resistance is weak, and in a strong wind environment, the anti-vibration ability is not strong, which can easily cause large shaking. Finally, it is not convenient to clean the remaining sand and dust after strong wind. SUMMARY

[0004] In order to overcome the shortcomings in the background art, the present application provides a photovoltaic equipment protection device with stronger wind and vibration resistance, and convenient automatic cleaning of remaining sand and dust.

[0005] The technical implementation scheme of the present application is: a photovoltaic equipment protection device, comprising a mounting bottom plate, three slide rails are fixedly connected to the mounting bottom plate, a plurality of buffer pads are arranged on the slide rails, a sliding block is slidably connected to each slide rail, and a connecting frame is fixedly connected between the three sliding blocks.

[0006] More preferably, it further comprises a placing mechanism, the placing mechanism comprises a support bent rod, the support bent rod is fixedly connected to the connecting frame, a hydraulic push rod is fixedly connected to the connecting frame, a limiting frame is fixedly connected to the upper end of the extension shaft of the hydraulic push rod, a limiting groove is formed in the limiting frame, a placing frame is rotatably connected to the support bent rod, one side of the placing frame is located in the limiting groove in the limiting frame, a plurality of support cross bars are fixedly connected to the placing frame, four fixing blocks are threadedly connected to the placing frame, a side rod is fixedly connected to one side of the connecting frame, a wind speed meter is fixedly connected to the upper end of the side rod, the wind speed meter is connected to the hydraulic push rod through wires, and a photovoltaic panel is placed on the placing frame and fixed through the four fixing blocks.

[0007] More preferably, the device further comprises a buffering mechanism, the buffering mechanism comprises two fixing frames, the two fixing frames are fixedly connected to the mounting bottom plate, three pulleys are rotatably connected to each of the fixing frames, grooves are formed in the pulleys, a limiting block is fixedly connected to one side of each of the fixing frames, a through hole is formed in the middle of the limiting block, a pressing wheel is rotatably connected to one side of each of the fixing frames, two counterweights are placed on the mounting bottom plate, the two counterweights are connected to the two sides of the connecting frame by connecting ropes, the connecting ropes pass through the three pulleys on the fixing frames, the connecting ropes pass through the through holes in the limiting blocks, and the connecting ropes pass between the pressing wheels and one of the pulleys.

[0008] More preferably, the device further comprises an anti-vibration mechanism, the anti-vibration mechanism comprises a placing table, the placing table is fixedly connected to the mounting bottom plate, a lead block is placed on the placing table, a supporting frame is fixedly connected to the connecting frame, a sliding rod is slidably connected to the supporting frame, a return spring is connected between the sliding rod and the supporting frame, two vertical rods are fixedly connected to the supporting frame, a guide wheel is rotatably connected between the two vertical rods, a pull rope is connected between the lead block and the upper part of the sliding rod, the pull rope passes through the guide wheel, and a top rod is fixedly connected to the placing frame.

[0009] More preferably, the device further comprises a cleaning mechanism, the cleaning mechanism comprises two limiting plates, the two limiting plates are fixedly connected to the two sides of the placing frame, grooves are formed in the limiting plates, notches are formed in one side of the limiting plates, sliding frames are slidably connected in the grooves of the limiting plates, right-angle plates are fixedly connected to the lower parts of the sliding frames, a brush plate is fixedly connected between the two sliding frames, and two dust-removing plates are fixedly connected to the brush plate.

[0010] 1. Thus, by adjusting the photovoltaic panel to a horizontal state in a strong wind environment, the wind area is reduced, and the wind energy is consumed by the counterweights, thereby enhancing the wind resistance of the photovoltaic equipment.

[0011] 2. After the top rod swings downward by a certain angle, the top rod will press the sliding rod to move downward by a distance, the downward movement of the sliding rod will pull the lead block upward by a distance through the pull rope, then the lead block will be out of contact with the placing table and be hung up, so that the hung-up lead block becomes a damper, which can make the anti-vibration performance of the entire device stronger and less likely to shake greatly due to a strong wind environment.

[0012] 3. If the photovoltaic panel is adjusted from the horizontal state to the inclined state, and the brush plate is on the high side, then the brush plate will slide to the low side due to gravity, thereby cleaning the dust or sand that may be left on the photovoltaic panel after the strong wind, which can ensure the cleanliness of the surface of the photovoltaic panel. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the buffer mechanism of the present invention.

[0015] Figure 3 For the present invention Figure 2 A magnified three-dimensional structural diagram at point A in the middle.

[0016] Figure 4 This is a schematic diagram of the separate three-dimensional structure of the fixing frame and pulley of the present invention.

[0017] Figure 5 This is a three-dimensional structural diagram of the placement mechanism of the present invention.

[0018] Figure 6 This is a three-dimensional structural diagram of the placement rack of the present invention.

[0019] Figure 7 This is a three-dimensional structural diagram of the vibration-damping mechanism of the present invention.

[0020] Figure 8 This is a partial three-dimensional structural schematic diagram of the vibration-damping mechanism of the present invention.

[0021] Figure 9 This is a three-dimensional structural diagram of the cleaning mechanism of the present invention.

[0022] Figure 10 This is a three-dimensional structural diagram of the limiting plate, sliding frame, and right-angle plate of the present invention.

[0023] The above-mentioned attached drawings include the following reference numerals: 1. Mounting base plate, 2. Slide rail, 201. Buffer pad, 3. Slider, 4. Connecting frame, 51. Supporting bent rod, 52. Hydraulic push rod, 53. Limiting frame, 54. Placement frame, 55. Supporting crossbar, 56. Fixing block, 57. Side rod, 58. Anemometer, 6. Photovoltaic panel, 71. Fixing frame, 72. Pulley, 73. Limiting block, 74. Pressure roller, 75. Counterweight block, 76. Connecting rope, 81. Placement platform, 82. Lead block, 83. Support frame, 84. Sliding rod, 85. Return spring, 86. Upright pole, 87. Guide wheel, 88. Pull rope, 89. Top rod, 91. Limiting plate, 92. Sliding frame, 93. Right angle plate, 94. Brush plate, 95. Wind vane. Detailed Implementation

[0024] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0025] Example 1 A protective device for photovoltaic equipment, such as Figures 1-10 As shown, it includes a mounting base plate 1, on which three slide rails 2 are fixedly connected. Each slide rail 2 is provided with a plurality of buffer pads 201. Each slide rail 2 is slidably connected with a slider 3. A connecting frame 4 is fixedly connected between the three sliders 3.

[0026] It also includes a placement mechanism, which includes a support rod 51 fixedly connected to the connecting frame 4. A hydraulic push rod 52 is fixedly connected to the connecting frame 4. A limit frame 53 is fixedly connected to the upper end of the telescopic shaft of the hydraulic push rod 52. The limit frame 53 has a limit groove. A placement frame 54 is rotatably connected to the support rod 51. One side of the placement frame 54 is located in the limit groove on the limit frame 53. Several support crossbars 55 are fixedly connected to the placement frame 54. Four fixing blocks 56 are threadedly connected to the placement frame 54. A side rod 57 is fixedly connected to one side of the connecting frame 4. An anemometer 58 is fixedly connected to the upper end of the side rod 57. The anemometer 58 is connected to the hydraulic push rod 52 through a wire. A photovoltaic panel 6 is placed on the placement frame 54 and fixed by the four fixing blocks 56.

[0027] It also includes a buffer mechanism, which includes two fixed frames 71, both of which are fixedly connected to the mounting base plate 1. Each fixed frame 71 is rotatably connected to three pulleys 72, and each pulley 72 has a groove. Each fixed frame 71 is fixedly connected to one side of a limiting block 73, and the limiting block 73 has a through hole in the middle. Each fixed frame 71 is rotatably connected to one side of a pressure roller 74. Two counterweights 75 are placed on the mounting base plate 1. The two counterweights 75 are respectively connected to the two sides of the connecting frame 4 by connecting ropes 76. The connecting ropes 76 pass around the three pulleys 72 on the fixed frame 71. The connecting ropes 76 are located between the pressure roller 74 and one of the pulleys 72. The connecting ropes 76 pass through the through hole in the middle of the limiting block 73.

[0028] In practical work, photovoltaic equipment usually operates outdoors. First, the fixing block 56 is removed, and then the PV module, i.e., the photovoltaic panel 6, is placed on the placement frame 54. The bottom surface of the photovoltaic panel 6 contacts the support crossbar 55, and then the four fixing blocks 56 are tightened. When the wind picks up in the working environment, the anemometer 58 measures the wind speed. When the wind speed increases and exceeds a certain value, the hydraulic push rod 52 is activated, controlling the telescopic shaft to retract. Conversely, when the wind speed decreases and falls below the set value, the hydraulic push rod 52 returns to its original position. The downward retraction of the telescopic shaft of the hydraulic push rod 52 will cause the limit frame 53 to move downward as well. The downward movement of the limit frame 53 will cause one side of the placement frame 54 to swing downward. The placement frame 54 will then swing downward around the support bending rod 51 as the axis of rotation. When the hydraulic push rod 52 stops retracting, the placement frame 54 will move the photovoltaic panel downward. The photovoltaic panel 6 swings from an inclined state to a horizontal state, which reduces the windward area of ​​the photovoltaic panel 6 in strong wind environments. When there is a sudden strong wind, if the hydraulic push rod 52 has not adjusted the photovoltaic panel 6 to a horizontal state in time, the wind blowing on the inclined photovoltaic panel 6 will push the connecting frame 4 and the three sliders 3 to move horizontally to one side. When the connecting frame 4 is blown by the wind and moves horizontally to one side, it will pull the counterweight 75 upward through the connecting rope 76. The work done by the upward movement of the counterweight 75 offsets part of the wind energy, realizing a buffer function. The pressure roller 74 can ensure that the connecting rope 76 will not detach from the pulley 72 in a slack state. In this way, by adjusting the photovoltaic panel 6 to a horizontal state in strong wind environments, the windward area is reduced, and the energy of the wind is consumed by the counterweight 75, thereby enhancing the wind resistance of the photovoltaic equipment.

[0029] Example 2 Based on Example 1, such as Figures 7-8 As shown, it also includes an anti-vibration mechanism, which includes a placement platform 81, which is fixedly connected to the mounting base plate 1. A lead block 82 is placed on the placement platform 81. A support frame 83 is fixedly connected to the connecting frame 4. A sliding rod 84 is slidably connected to the support frame 83. A return spring 85 is connected between the sliding rod 84 and the support frame 83. Two uprights 86 are fixedly connected to the support frame 83. A guide wheel 87 is rotatably connected between the two uprights 86. A pull rope 88 is connected between the lead block 82 and the upper part of the sliding rod 84. The pull rope 88 passes around the guide wheel 87. A top rod 89 is fixedly connected to the placement frame 54.

[0030] When the hydraulic push rod 52 retracts and adjusts the photovoltaic panel 6 to a horizontal state, the placement frame 54 swings downward, which will cause the top rod 89 to move together. After the top rod 89 swings downward at a certain angle, the top rod 89 will squeeze the sliding rod 84 to move downward a certain distance. The downward movement of the sliding rod 84 will pull the lead block 82 upward a certain distance through the pull rope 88. Then the lead block 82 will disengage from the placement platform 81 and be suspended, making the suspended lead block 82 a damper. This makes the vibration resistance of the entire device stronger and less prone to large swaying in strong wind environments.

[0031] Example 3 Based on Example 2, such as Figures 9-10 As shown, it also includes a cleaning mechanism, which includes two limiting plates 91. The two limiting plates 91 are respectively fixedly connected to both sides of the placement frame 54. The limiting plates 91 have sliding grooves and a notch on one side. A sliding frame 92 is slidably connected in the sliding groove on the limiting plate 91. A right-angle plate 93 is fixedly connected to the lower part of the sliding frame 92. A brush plate 94 is fixedly connected between the two sliding frames 92. Two baffles 95 are fixedly connected to the brush plate 94.

[0032] When the photovoltaic panel 6 is adjusted to a horizontal state, if the wind-blown plate 95 is blown by the wind and moves horizontally, it will cause the brush plate 94 to brush across the surface of the photovoltaic panel 6. If the photovoltaic panel 6 is adjusted from a horizontal state to a tilted state and the brush plate 94 is on the higher side, the brush plate 94 will slide to the lower side due to gravity, thereby cleaning away the dust or sand that may remain on the photovoltaic panel 6 after the strong wind. This can ensure the cleanliness of the surface of the photovoltaic panel 6. The right-angle plate 93 is located between the limiting plate 91 and the sliding frame 92, which can ensure that the sliding frame 92 will not detach from the limiting plate 91.

[0033] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A protection device for a photovoltaic installation, characterized in that Including have installation bottom board (1), fixedly connected with three slide rails (2) on the installation bottom board (1), be equipped with several buffer pads (201) on the slide rail (2), each the slide rail (2) is slidably connected with sliding block (3), three the sliding block (3) are fixedly connected with connecting frame (4).

2. A protection device for a photovoltaic installation according to claim 1, characterized in that Also including have placing mechanism, the placing mechanism includes support bent pole (51), the support bent pole (51) is fixedly connected on the connecting frame (4), the connecting frame (4) is fixedly connected with hydraulic push rod (52), the telescopic axle upper end of the hydraulic push rod (52) is fixedly connected with limit frame (53), the limit frame (53) is opened in the limit slot on, the support bent pole (51) is rotatably connected with placing rack (54), the placing rack (54) one side is located in the limit slot on the limit frame (53), the placing rack (54) is fixedly connected with several support cross bars (55), the placing rack (54) is connected with four fixed blocks (56) through screw thread, the connecting frame (4) one side is fixedly connected with side rod (57), the side rod (57) upper end is fixedly connected with anemorumbometer (58), the anemorumbometer (58) is connected with the hydraulic push rod (52) through wire, the placing rack (54) is placed with photovoltaic panel (6), and it is fixed through four fixed blocks (56).

3. A photovoltaic device protection apparatus as defined in claim 2, wherein Also including have buffer mechanism, the buffer mechanism includes two fixed frame (71), two the fixed frame (71) are fixedly connected on the installation bottom plate (1), each the fixed frame (71) is rotatably connected with three pulleys (72), the pulley (72) is opened in recess, each the fixed frame (71) one side is fixedly connected with limit block (73), each the fixed frame (71) one side is rotatably connected with pressure roller (74), the installation bottom plate (1) is placed with two counterweight (75), two the counterweight (75) are connected with the both sides of the connecting frame (4) through connecting rope (76), the connecting rope (76) respectively bypass three the pulleys (72) on the fixed frame (71), the connecting rope (76) is located between the pressure roller (74) and one of the pulley (72).

4. A photovoltaic device protection apparatus as claimed in claim 3, wherein, The limit block (73) middle part is opened in the perforation, and the connecting rope (76) passes through the perforation in the middle part of the limit block (73).

5. A photovoltaic device protection apparatus as defined in claim 3, wherein Further include anti-vibration mechanism, the anti-vibration mechanism includes the placement platform (81), the placement platform (81) is fixedly connected to the installation bottom plate (1), the lead block (82) is placed on the placement platform (81), the connecting frame (4) is fixedly connected with the support frame (83), the support frame (83) is slidably connected with the sliding rod (84), the sliding rod (84) is connected with the support frame (83) between return spring (85), the support frame (83) is fixedly connected with two vertical rods (86), two the vertical rod (86) is rotatably connected with the guide wheel (87), the lead block (82) and the upper portion of the sliding rod (84) are connected with the pull rope (88), the pull rope (88) passes through the guide wheel (87), the placement frame (54) is fixedly connected with the top rod (89).

6. A photovoltaic device protection apparatus as claimed in claim 5, wherein, Further include cleaning mechanism, the cleaning mechanism includes two limit plates (91), two the limit plate (91) is fixedly connected on the both sides of the placement frame (54), the limit plate (91) is opened in the sliding slot, the sliding slot in the limit plate (91) is slidably connected with the sliding frame (92), the straight angle plate (93) is fixedly connected on the lower portion of the sliding frame (92), two the sliding frame (92) is fixedly connected with the brush plate (94), the brush plate (94) is fixedly connected with two the wind board (95).

7. A photovoltaic device protection apparatus as claimed in claim 6, wherein, The limit plate (91) side is opened in the notch, for leaking sandstone.

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