A photovoltaic bracket
By designing the water collection mechanism and the removal mechanism, the problem of roof photovoltaic modules reducing efficiency due to debris coverage is solved, effective cleaning of photovoltaic modules and rainwater collection are achieved, and photoelectric conversion efficiency is improved.
Patent Information
- Application Number
- CN202410872936.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2024-04-23
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2044-07-01
AI Technical Summary
Roof photovoltaic modules are covered with long-term dust, bird droppings, leaves and other debris, which affects their photoelectric conversion efficiency. Moreover, due to the complex roof environment, it is difficult to ensure that there is a water source for cleaning.
A photovoltaic bracket is designed, including a water collecting mechanism and a cleaning mechanism. The water collection mechanism includes a water collection cover, a water collection tank, a filter plate and an electric rotor. The filter plate is lifted and lowered through the electric rotor, thereby realizing the shaking of impurities and filtration of rainwater. The cleaning mechanism includes a gas cylinder, a piston rod and an outlet pipe, which blows away impurities from the filter plate through the airflow.
Effectively remove impurities on the surface of the photovoltaic module, ensure the clean state of the photovoltaic module, improve the photoelectric conversion efficiency, and collect rainwater through the water collection mechanism, solving the problem of photovoltaic module cleaning.
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Figure CN118801796B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic bracket. Background Art
[0002] Photovoltaic brackets are an important part of the photovoltaic system. They are used to support photovoltaic modules and install them at specific angles and positions to receive solar radiation. There are various types and structures of photovoltaic brackets, which mainly depend on the type of photovoltaic modules, installation location and environmental conditions. However, in the building roof scenario, the roof photovoltaic modules are covered by dust, bird droppings, leaves and other debris for a long time, which seriously affects their photoelectric conversion efficiency. In addition, due to the complex roof environment, it is difficult to ensure that there is a water source for cleaning photovoltaic modules. Summary of the invention
[0003] The technical solution of the present invention for solving the above-mentioned technical problems is as follows: a photovoltaic bracket, comprising photovoltaic mounting plates, a water collecting mechanism is installed between the photovoltaic mounting plates, the water collecting mechanism comprises a water collecting cover, a water collecting box is connected below the water collecting cover, a first sleeve is fixedly connected to the inner wall of the water collecting box, an electric rotating drum is rotatably installed in the water collecting box, a horizontal groove and an oblique groove are provided on the outside of the electric rotating drum, the horizontal groove and the oblique groove are interconnected to form a directional slide rail, a guide slide rod is slidably connected in the directional slide rail, the other end of the guide slide rod is fixedly connected to a transmission rod slidably installed in the first sleeve, and a filter plate is inserted at the connection between the water collecting box and the water collecting cover.
[0004] Preferably, it also includes a cleaning mechanism, which includes a support frame, one end of which is fixedly connected to an air cylinder, the top of the air cylinder is connected to a plurality of air outlet pipes, and a piston rod is inserted in the air cylinder.
[0005] Preferably, a rotating table is installed on the top of the electric rotating drum, a guide slide groove is opened on the top of the rotating table, a second sleeve is fixedly connected to the inner wall of the water collecting tank, a positioning sleeve is installed in the second sleeve, a supporting plate is fixedly connected to one side of the positioning sleeve, a sliding block is fixedly connected under the supporting plate, the sliding block is slidably connected in the guide slide groove, a vertical sliding rod is slidably installed in the positioning sleeve, and a first scraper rod fixed to the vertical sliding rod is rotatably installed on the top of the filter plate.
[0006] Preferably, a rotating rod is installed on the top of the filter plate, a connecting plate is installed on the top of the first scraper rod, the piston rod penetrates the connecting plate, gear plates are installed on the outer walls of the first scraper rod and the rotating rod, a second scraper rod is installed on the outer wall of the rotating rod, and the outer walls of the rotating rod and the gear plates provided on the outer walls of the first scraper rod are meshed with transmission belts. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] In order to more clearly illustrate the embodiments of the present invention or the existing technical solutions, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0008] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0009] Figure 2 It is a schematic diagram of the bottom structure of the present invention;
[0010] Figure 3 It is a side sectional view of the local structure of the water collection mechanism of the present invention;
[0011] Figure 4 It is a cross-sectional view of the local structure of the water collection mechanism of the present invention;
[0012] Figure 5 It is a structural front cross-sectional view of the water collecting mechanism and the cleaning mechanism of the present invention;
[0013] Figure 6 For the present invention Figure 5 A magnified view of the structure of part A;
[0014] Figure 7 For the present invention Figure 5 Enlarged view of the structure of part B.
[0015] In the figure: 1. photovoltaic mounting plate; 2. support column; 3. water collection mechanism; 31. water collection box; 32. water collection cover; 33. filter plate; 34. electric rotary drum; 35. horizontal groove; 36. oblique groove; 37. guide slide bar; 38. transmission rod; 39. first sleeve; 310. second sleeve; 311. positioning sleeve; 312. supporting plate; 313. slider; 314. rotating table; 315. guide slide groove; 316. vertical slide bar; 317. rotating rod; 318. connecting plate; 319. first scraper rod; 320. second scraper rod; 321. gear plate; 322. transmission belt; 4. cleaning mechanism; 41. supporting frame; 42. air cylinder; 43. piston rod; 44. air outlet pipe. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] See also Figure 1-7 As shown in the figure, this embodiment provides a photovoltaic bracket, such as Figure 1-2 As shown, it comprises a plurality of photovoltaic mounting panels 1 arranged in an inclined state, a support column 2 is fixedly connected below each of the plurality of photovoltaic mounting panels 1, a water collecting mechanism 3 is fixedly installed between the plurality of photovoltaic mounting panels 1, and a water collecting mechanism 3 is fixedly installed between the plurality of photovoltaic mounting panels 1. Figure 3 As shown, the water collecting mechanism 3 includes a water collecting cover 32 installed at a lower position between the plurality of photovoltaic mounting panels 1, a water collecting box 31 is connected to the lower portion of the water collecting cover 32, and a filter plate 33 is inserted at the connection between the water collecting box 31 and the water collecting cover 32, and a plurality of through grooves are provided on the side wall of the water collecting cover 32. Specifically, in combination with the setting of the filter plate 33, the collected rainwater is filtered so that larger impurities are isolated on the top of the filter plate 33, and in combination with the setting of the through grooves on the outer wall of the water collecting cover 32, impurities can be removed from the inner cavity of the water collecting cover 32 through the through grooves, so as to facilitate long-term collection of rainwater for use.
[0018] An electric drum 34 is rotatably mounted in the middle of the water collecting box 31. The outer wall of the electric drum 34 is provided with two horizontal grooves 35 and two oblique grooves 36. The two horizontal grooves 35 and the two oblique grooves 36 are arranged parallel to each other, and the horizontal grooves 35 and the oblique grooves 36 are connected to each other to form a directional slide rail. Figure 5 and Figure 7 As shown, a guide slide rod 37 is slidably connected in the directional slide rail, and the other end of the guide slide rod 37 is fixedly connected to a transmission rod 38 fixedly connected to the filter plate 33. A first sleeve 39 is fixedly connected to the inner wall of the water collecting box 31, and the transmission rod 38 is installed in the first sleeve 39 in an up and down sliding state; in the initial state, the guide slide rod 37 is located in the horizontal groove 35 below. When the electric rotary drum 34 is started, it can drive the guide slide rod 37 to slide along the directional slide rail and lift upward, thereby driving the filter plate 33 to lift.
[0019] Specifically, under normal conditions, the guide slide bar 37 is located in the horizontal groove 35 with a relatively low height on the outer wall of the electric rotary drum 34. At this time, the transmission rod 38 moves downward as a whole and extends into the inner cavity of the water collecting box 31, and pulls the filter plate 33 to cover the connection between the water collecting box 31 and the water collecting cover 32 as a whole; when the electric rotary drum 34 is driven to rotate, the overall position of the transmission rod 38 is kept unchanged by the limiting of the first sleeve 39, and then with the rotation of the two horizontal grooves 35 and the oblique groove 36 that are interconnected on the outer wall of the electric rotary drum 34, when the oblique groove 36 moves to the guide slide bar 37, the guide slide bar 37 can follow the internal trajectory of the oblique groove 36, so that the overall height of the transmission rod 38 changes, and then The transmission rod 38 gradually moves upward, thereby synchronously driving the filter plate 33 to move upward as a whole, so that the filter plate 33 can be moved upward as a whole to the position where the water collecting cover 32 is provided with a through groove. Similarly, as the electric drum 34 continues to rotate, the transmission rod 38 will gradually move downward, thereby synchronously driving the filter plate 33 to move downward as a whole. During the above reciprocating process, the filter plate 33 continuously performs a lifting and lowering movement, so that some debris covering the edge of the filter plate 33 can be shaken off through the through groove. At the same time, the continuous lifting and lowering movement of the filter plate 33 can also make the covering material in a loose state, which is conducive to rainwater flowing into the water collecting box 31 through the gap, thereby ensuring that the photovoltaic bracket can collect rainwater.
[0020] It should be noted that, although the above technical solution can shake off some of the debris covering the edge of the filter plate 33 and keep the debris in a loose state, it is difficult to remove the debris inside the filter plate 33. Therefore, a cleaning mechanism 4 can be specifically designed, as shown in detail below:
[0021] It also includes a cleaning mechanism 4, which includes a support frame 41 fixedly mounted on the inner wall of the water collecting cover 32, and the other end of the support frame 41 is fixedly connected to a gas cylinder 42, and the inner cavity of the gas cylinder 42 is plugged with a piston rod 43 fixedly connected to the filter plate 33, and the top of the gas cylinder 42 is connected with a plurality of air outlet pipes 44, and when the filter plate 33 is lifted, it can drive the air outlet pipes 44 to blow air. Specifically, under normal conditions, the piston rod 43 moves to the bottom of the inner cavity of the gas cylinder 42, and when the filter plate 33 moves upward as a whole, the piston rod 43 can be synchronously moved upward to squeeze the inner cavity of the gas cylinder 42, and then the gas in the inner cavity of the gas cylinder 42 is blown out through the plurality of air outlet pipes 44, so that the loose debris on the surface of the filter plate 33 is blown out through the through groove, and the impurities on the surface of the filter plate 33 are further cleaned.
[0022] Furthermore, the plurality of photovoltaic mounting panels 1 are mutually surrounded to form a conical support panel, the top and bottom of the conical support panel are both open, and the inner diameter length of the bottom of the conical support panel is smaller than the inner diameter length of the water collecting cover 32. Specifically, the purpose of such a setting is that the conical support panel can greatly increase the effective area for receiving rainwater, so that more rainwater can fall into the inner cavity of the water collecting cover 32 and the water collecting box 31 through the surface of the plurality of photovoltaic mounting panels 1, and at the same time, the conical support panel can also allow the photovoltaic module to absorb solar radiation from all angles as much as possible.
[0023] Furthermore, the plurality of air outlet pipes 44 are arranged in a circular shape and equidistantly in sequence around the outer circumferential surface of the support bracket 41, and the plurality of air outlet pipes 44 are arranged in an inclined state. Specifically, the purpose of such arrangement is that when the piston rod 43 moves upward to squeeze the inner cavity of the air cylinder 42 and the gas in the inner cavity is ejected to the outside through the inclined air outlet pipe 44, air can be better blown from the center of the filter plate 33 to its peripheral portion, and then the impurities on the surface of the filter plate 33 can be blown out through the through grooves opened on the outer wall of the water collecting cover 32, thereby avoiding the problem that impurities cannot be cleaned for a long time and are blocked inside the filter plate 33, affecting the filtering and water collection of the filter plate 33.
[0024] Furthermore, refer to Figure 5-6 As shown, a second sleeve 310 is fixedly connected to the inner wall of the water collecting box 31 at a position relative to the first sleeve 39, a positioning sleeve 311 is rotatably installed in the second sleeve 310, a supporting plate 312 is fixedly connected to the side of the positioning sleeve 311 close to the electric rotating drum 34, and a slider 313 is fixedly connected to the lower side of the supporting plate 312, combined with Figure 4 As shown, a rotating platform 314 is fixedly installed on the top of the electric drum 34, and a guide slot 315 is provided on the top of the rotating platform 314. The slider 313 is slidably connected in the guide slot 315. When the electric drum 34 is started, it can drive the rotating platform 314 to rotate, thereby driving the positioning sleeve 311 to rotate. Specifically, in actual use, according to the rotation of the guide slot 315, its trajectory line moves on the bottom of the supporting plate 312. When the slider 313 moves on the trajectory line on one side of the guiding slot 315 close to the center point of the rotating platform 314, the slider 313 is close to the position of the center point of the rotating platform 314. When the guiding slot 315 moves to the bottom of the supporting plate 312 on the side close to the outer circumference of the rotating platform 314, the slider 313 drives the supporting plate 312 to rotate around the center point of the positioning sleeve 311 as a whole, and then synchronously causes the supporting plate 312 to drive the positioning sleeve 311 to rotate as a whole.
[0025] At the same time, refer to Figure 6-7As shown, the interior of the positioning sleeve 311 is installed with a vertical slide bar 316 rotatably connected to the filter plate 33 in an up and down sliding state, and the top of the filter plate 33 is rotatably installed with a first scraper bar 319 fixedly connected to the vertical slide bar 316. Specifically, when the supporting plate 312 is deflected by the change in the contact position between the slider 313 and the guide slide groove 315, it can synchronously drive the positioning sleeve 311 and the vertical slide bar 316 to rotate synchronously, and then synchronously make the first scraper bar 319 move the covered debris on the surface of the filter plate 33 so that it falls out through the through groove, so that the surface of the filter plate 33 remains clean for a long time, which is conducive to better collection of rainwater for photovoltaic cleaning.
[0026] Furthermore, a strip-shaped slide groove is provided on the inner wall of the positioning sleeve 311, a limit strip is fixedly installed on the outer wall of the vertical slide bar 316, and the limit strip is slidably installed in the inner cavity of the strip-shaped limit groove provided on the inner wall of the vertical slide bar 316. Specifically, the purpose of such a setting is that when the filter plate 33 moves up and down, the vertical slide bar 316 as a whole can only slide inside the positioning sleeve 311 in the state of moving up and down.
[0027] Further preferably, a rotating rod 317 is rotatably mounted on the top of the filter plate 33, a connecting plate 318 rotatably connected to the rotating rod 317 is fixedly mounted on the top of the first scraper rod 319, and the piston rod 43 penetrates the connecting plate 318. Specifically, the purpose of such a setting is that when the transmission rod 38 moves up and down, the connecting plate 318 can be combined with the setting of the rotating rod 317 and the vertical sliding rod 316, so that the filter plate 33 is subjected to a balanced force as a whole, and then moves up and down smoothly.
[0028] The outer walls of the first scraper bar 319 and the rotating bar 317 are fixedly mounted with a gear plate 321, the outer wall of the rotating bar 317 is fixedly mounted with a second scraper bar 320, and the outer walls of the rotating bar 317 and the gear plate 321 disposed on the outer walls of the first scraper bar 319 are meshed with a transmission belt 322. Specifically, the purpose of such a configuration is to enable the first scraper bar 319 to rotate, in combination with the configuration of the gear plate 321 and the transmission belt 322, to synchronously drive the second scraper bar 320 disposed on the outer wall of the rotating bar 317 to rotate synchronously, thereby performing multiple ranges of cleaning work on the surface of the filter plate 33.
[0029] In the specific implementation, rainwater falls into the water collection cover 32 through the surface of multiple photovoltaic installation panels 1, and after being filtered by the filter plate 33, it falls into the inner cavity of the water collection box 31 for storage. Then, by regularly starting the electric rotary drum 34 to rotate, the guide slide bar 37 drives the transmission rod 38 to change the overall height, and then when the transmission rod 38 gradually moves up, the filter plate 33 is synchronously driven to move up as a whole, and the piston rod 43 moves up to squeeze the inner cavity of the air cylinder 42, and then the gas in the inner cavity of the air cylinder 42 is blown out through multiple outlet pipes 44, thereby the filter plate The impurities on the surface of the filter plate 33 are blown away, completing the preliminary cleaning of the impurities on the surface of the filter plate 33; when the guide slide groove 315 rotates along with the rotating table 314, the supporting plate 312 can drive the positioning sleeve 311 and the vertical slide bar 316 to rotate as a whole, thereby driving the first scraper 319 to rotate and sweep the surface of the filter pad 33; at the same time, combined with the arrangement of the gear plate 321 and the transmission belt 322, the second scraper 320 arranged on the outer wall of the rotating rod 317 is synchronously driven to rotate synchronously, thereby performing multiple ranges of cleaning on the surface of the filter plate 33.
[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A photovoltaic support, comprising a photovoltaic mounting plate (1), characterized in that: A water collecting mechanism (3) is installed between the photovoltaic mounting panels (1), the water collecting mechanism (3) comprising a water collecting cover (32), a water collecting box (31) is connected to the water collecting cover (32) below, a first sleeve (39) is fixedly connected to the inner wall of the water collecting box (31), an electric rotary drum (34) is rotatably installed in the water collecting box (31), a horizontal groove (35) and an oblique groove (36) are provided on the outside of the electric rotary drum (34), the horizontal groove (35) and the oblique groove (36) are connected to each other to form a directional slide rail, a guide slide rod (37) is slidably connected in the directional slide rail, the other end of the guide slide rod (37) is fixedly connected to a transmission rod (38) slidably installed in the first sleeve (39), and a filter plate (33) is inserted into the connection between the water collecting box (31) and the water collecting cover (32); It also includes a cleaning mechanism (4), the cleaning mechanism (4) including a support frame (41), one end of the support frame (41) is fixedly connected to a gas cylinder (42), the top of the gas cylinder (42) is connected to a plurality of gas outlet pipes (44), and a piston rod (43) is inserted into the gas cylinder (42); A rotating platform (314) is installed on the top of the electric rotating drum (34), and a guide sliding groove (315) is opened on the top of the rotating platform (314). A second sleeve (310) is fixedly connected to the inner wall of the water collecting tank (31), and a positioning sleeve (311) is installed in the second sleeve (310). A supporting plate (312) is fixedly connected to one side of the positioning sleeve (311), and a sliding block (313) is fixedly connected below the supporting plate (312). The sliding block (313) is slidably connected in the guiding sliding groove (315), and a vertical sliding rod (316) is slidably installed in the positioning sleeve (311). A first scraper (319) fixedly connected to the vertical sliding rod (316) is rotatably installed on the top of the filter plate (33); when the electric rotating drum (34) is started, it can drive the rotating platform (314) to rotate, thereby driving the positioning sleeve (311) to rotate.
2. The photovoltaic support according to claim 1, characterized in that: A rotating rod (317) is installed on the top of the filter plate (33), a connecting plate (318) is installed on the top of the first scraper rod (319), the piston rod (43) penetrates the connecting plate (318), the outer walls of the first scraper rod (319) and the rotating rod (317) are both installed with gear plates (321), the outer wall of the rotating rod (317) is installed with a second scraper rod (320), and the outer walls of the gear plates (321) provided on the outer walls of the rotating rod (317) and the first scraper rod (319) are both meshed with transmission belts (322).
Citation Information
Patent Citations
Road rainwater collecting and irrigating device
CN116158326A
Horizontal rotation inclined single shaft photovoltaic tracking support linkage array
CN116545364A