Double-column fixed photovoltaic array bracket and photovoltaic power station comprising same

Abstract

The invention provides a double-column fixed photovoltaic array support and a photovoltaic power station comprising the same, and the double-column fixed photovoltaic array support comprises a plurality of front supports which are arranged in a determinant manner and rear supports which are in one-to-one correspondence with the front supports and can be lifted, and a connecting roll shaft is fixedly connected with the side edge of a photovoltaic panel through an embedded groove. The photovoltaic panel rotates around the axis of the connecting roller shaft so as to change the overturning state, the traction wire coil is driven by the rotating mechanism to drive the traction rope to conduct winding and unwinding motion, and the photovoltaic panel is further movably provided with a scraping mechanism which is close to the connecting roller shaft in the reset state and is parallel to the connecting roller shaft. The photovoltaic panel can rotate around the connecting roll shaft on the photovoltaic mounting plate, the overturning state of the photovoltaic panel is changed through the rotating motion, and the surface of the photovoltaic panel can be cleaned by changing the overturning state of the photovoltaic panel, so that the cleaning efficiency is improved. And the windward area can be reduced by changing the overturning state of the photovoltaic panel in a severe environment, so that the safety of the photovoltaic station is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic support, in particular to a double-column fixed photovoltaic square array support and a photovoltaic power station containing the same. BACKGROUND

[0002] A double-column angle-adjustable solar photovoltaic support with publication number CN109889146A is disclosed in the prior art, which relates to the technical field of new energy, and in particular belongs to a double-column angle-adjustable solar photovoltaic support and its adjusting method. Its features are that it includes a first support unit and a second support unit. The first support unit includes a first column installed on a reinforced concrete base, and the upper end of the first column is hinged to an inclined beam on which a solar photovoltaic panel is placed. The second support unit includes a second column and an extension column installed in sequence on the reinforced concrete base. The top end of the extension column is hinged to the inclined beam on which the solar photovoltaic panel is placed. The extension column includes a main rod body and a secondary rod body sleeved on the main rod body. Adjustment holes are provided on the main rod body and the secondary rod body, and corresponding adjustment holes are connected by bolts to achieve the fastening connection between the main rod body and the secondary rod body. The maximum power generation is obtained by perpendicular solar irradiation on the solar photovoltaic panel, and the power generation efficiency is improved. It has the positive effect of strong practicality.

[0003] However, the above-mentioned double-column angle-adjustable solar photovoltaic support still has obvious defects in use: the angle-adjustable photovoltaic support is relatively simple in function, and only serves to adjust the angle of the photovoltaic solar panel, which is relatively single in function. SUMMARY

[0004] The purpose of the present application is to provide a double-column fixed photovoltaic square array support and a photovoltaic power station containing the same to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The utility model provides a kind of double-column fixed photovoltaic square array support, including a plurality of front support in matrix setting and the rear support of liftable setting with it one-to-one, corresponding the front support and rear support are hingedly provided with same photovoltaic mounting plate, one side of the photovoltaic mounting plate is rotatably provided with connecting roller shaft, the connecting roller shaft is fixedly connected with the side of photovoltaic panel by embedding groove, the photovoltaic panel rotates around the axis of connecting roller shaft to change flip state, photovoltaic mounting plate is provided with photovoltaic panel cooperation groove on the side away from connecting roller shaft, the end of photovoltaic panel away from connecting roller shaft is movably matched with the photovoltaic panel cooperation groove provided on adjacent photovoltaic mounting plate, traction cable reel is provided on the photovoltaic mounting plate above photovoltaic panel cooperation groove, the end of traction rope leading out from traction cable reel is connected to the photovoltaic panel movably matched with the photovoltaic panel cooperation groove, traction cable reel drives traction rope to carry out take-up and pay-off motion under the drive of rotating mechanism, the traction rope makes photovoltaic panel complete flip motion around the axis of connecting roller shaft in the process of take-up and pay-off; The photovoltaic panel is also movably provided with a scraping mechanism close to the connecting roller shaft and parallel to it in the reset state, the scraping mechanism is connected with the traction mechanism, when the photovoltaic panel naturally droops in the unwinding of the traction cable reel, the scraping mechanism descends under the action of its own gravity to overcome the traction mechanism, thereby scraping the surface of the photovoltaic panel, when the photovoltaic panel is embedded in the photovoltaic panel cooperation groove after winding in the traction cable reel, the scraping mechanism restores to the reset state close to the side of the connecting roller shaft under the traction of the traction mechanism.

[0006] Preferably, the traction mechanism includes spring seats provided on both sides of the photovoltaic panel close to the connecting roller shaft, traction springs are connected to both sides of the spring seats.

[0007] Preferably, the scraping mechanism includes a scraping frame provided parallel to the connecting roller shaft, and a cleaning scraping strip is provided on one side of the scraping frame to abut against the surface of the photovoltaic panel.

[0008] Preferably, a plurality of evenly spaced spray heads are further provided on the side of the scraping frame close to the photovoltaic panel, the spray heads are in communication with a liquid storage tank mounted on the scraping frame, and the liquid storage tank pumps liquid into the interior through a liquid supply pipeline when the photovoltaic panel naturally droops.

[0009] Preferably, the rotating mechanism driving the traction cable reel to rotate is a worm and gear mechanism, the worm gear of the worm and gear mechanism is coaxial with the traction cable reel and is fixedly provided, the worm of the worm and gear mechanism is fixedly connected to the drive shaft of a driving motor, and the driving motor is fixedly provided on the photovoltaic mounting plate.

[0010] Preferably, the connecting roller shaft is a hollow structure, one end of the connecting roller shaft is connected with a fluid on-off shaft, the fluid on-off shaft is communicated with the hollow structure of the connecting roller shaft through the liquid inlet hole, the side of the connecting roller shaft away from the fluid on-off shaft is connected with a liquid outlet shaft, the liquid outlet hole of the liquid outlet shaft is communicated with the connecting roller shaft, the liquid outlet hole of the liquid outlet shaft is sleeved in the limiting sleeve, the limiting sleeve is fixedly connected with the spring seat on the same side, and the spring seat and the liquid storage tank are further provided with a liquid supply pipeline.

[0011] Preferably, the fluid on-off shaft and the liquid outlet shaft are movably inserted into the positioning holes arranged at the two ends of the photovoltaic mounting plate, the positioning hole of the fluid on-off shaft is further communicated with the pump liquid hole, the pump liquid hole is communicated with the external pump liquid mechanism through the pipeline, when the photovoltaic panel naturally droops under the action of gravity, the pump liquid hole cooperates with the liquid inlet hole arranged on the fluid on-off shaft, and when the photovoltaic panel is embedded into the photovoltaic panel cooperation groove after being wound by the traction line disc, the pump liquid hole is disengaged from the cooperation with the liquid inlet hole.

[0012] A photovoltaic power station adopts the double-column fixed photovoltaic square array support.

[0013] Compared with the prior art, the photovoltaic panel can rotate around the connecting roller shaft on the photovoltaic mounting plate, the cleaning operation on the surface of the photovoltaic panel can be realized by changing the overturning state of the photovoltaic panel, and the safety of the photovoltaic power station can be ensured by changing the overturning state of the photovoltaic panel to reduce the windward area in a harsh environment. The photovoltaic panel is fixed by the traditional double-column photovoltaic support, and the photovoltaic panel can rotate around the connecting roller shaft on the photovoltaic mounting plate, the cleaning operation on the surface of the photovoltaic panel can be realized by changing the overturning state of the photovoltaic panel, and the safety of the photovoltaic power station can be ensured by changing the overturning state of the photovoltaic panel to reduce the windward area in a harsh environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the overall structure of the photovoltaic panel in a horizontal state of the application; Figure 2 It is a schematic diagram of the photovoltaic panel in a natural drooping state; Figure 3 It is a schematic diagram of the connecting roller shaft and the connecting structure thereof; Figure 4 It is a setting position of the scraping frame and a partial enlarged view thereof; Figure 5 It is a schematic diagram of the worm and gear mechanism for driving the traction line disc to rotate; Figure 6 It is a schematic diagram of the setting position of the fluid on-off shaft; Figure 7Fig. 1 is a schematic view of the overall structure of the application.

[0015] In the figure: 1 front support, 2 rear support, 3 photovoltaic mounting plate, 4 connecting roller shaft, 5 photovoltaic panel, 6 photovoltaic panel matching groove, 7 traction line reel, 8 traction rope, 9 spring seat, 10 traction spring, 11 scraping frame, 12 cleaning scraping strip, 13 shower head, 14 liquid storage cabin, 15 worm gear, 16 worm shaft, 17 driving motor, 18 fluid on-off rotating shaft, 19 liquid inlet hole, 20 liquid outlet rotating shaft, 21 liquid outlet hole, 22 limiting sleeve, 23 liquid supply pipeline, 24 positioning hole, 25 pump liquid hole, 26 inclined support. Embodiment

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0017] Please refer to Figures 1-7 The present application provides a technical solution: Embodiment

[0018] A double-column fixed photovoltaic square array support, comprising a plurality of front supports 1 arranged in a matrix and a plurality of rear supports 2 corresponding to the front supports 1 and arranged in a lifting manner, the front supports 1 and the rear supports 2 corresponding to each other are both hingedly provided with the same photovoltaic mounting plate 3, the photovoltaic mounting plate 3 is rotatably provided with a connecting roller shaft 4 on one side, the connecting roller shaft 4 is fixedly connected with the side edge of a photovoltaic panel 5 through an embedded groove, the photovoltaic panel 5 rotates around the axis of the connecting roller shaft 4 to change the overturning state, the photovoltaic mounting plate 3 is provided with a photovoltaic panel matching groove 6 on the side away from the connecting roller shaft 4, one end of the photovoltaic panel 5 away from the connecting roller shaft 4 is movably matched with the photovoltaic panel matching groove 6 provided on the adjacent photovoltaic mounting plate 3, the photovoltaic mounting plate 3 above the photovoltaic panel matching groove 6 is provided with a traction line reel 7, one end of the traction rope 8 drawn out of the traction line reel 7 is connected to the photovoltaic panel 5 movably matched with the photovoltaic panel matching groove 6, the traction line reel 7 drives the traction rope 8 to perform a winding and unwinding movement under the drive of a rotating mechanism, the traction rope 8 makes the photovoltaic panel 5 complete an overturning movement around the axis of the connecting roller shaft 4 in the winding and unwinding process; The photovoltaic panel 5 is further movably provided with a scraping mechanism close to the connecting roller shaft 4 and parallel to the connecting roller shaft 4 in a reset state, the scraping mechanism is connected with the traction mechanism, when the photovoltaic panel 5 naturally droops in the unwinding of the traction line reel 7, the scraping mechanism descends under the action of its own gravity to overcome the traction mechanism and scrape the surface of the photovoltaic panel 5, when the photovoltaic panel 5 is embedded in the photovoltaic panel matching groove 6 after the winding of the traction line reel 7, the scraping mechanism recovers to the reset state by the traction of the traction mechanism close to the connecting roller shaft 4.

[0019] In this embodiment, the front bracket 1 and the rear bracket 2 provide front-to-back support for the photovoltaic mounting panel 3. The rear bracket 2 in this embodiment is a common two-stage sleeve structure in the prior art, driven by a lifting mechanism to adjust the angle of the photovoltaic mounting panel 3. This type of setup is a common telescopic form in the prior art and will not be elaborated further here. To improve the stability of the double-column bracket, a diagonal support 26 is provided on the rear bracket 2, further enhancing the stability of the structure. Unlike the prior art, in this embodiment, a connecting roller 4 is rotatably mounted on one side of the photovoltaic mounting panel 3. The connecting roller 4 is fixedly connected to the side of the photovoltaic panel 5 through an embedded groove. The photovoltaic panel 5 rotates around the axis of the connecting roller 4, changing its flipping state. When the photovoltaic panel 5 is in the sunlight-facing power generation state, the installation angle of the photovoltaic panel 5 is the flipping angle common in the prior art. When it is necessary to clean the photovoltaic panel 5 or adjust its windward position, the photovoltaic panel 5 is adjusted to a naturally drooping state. (Refer to the appendix of the instruction manual.) Figure 2 At this point, the photovoltaic panel 5 is in a vertically downward position. Whether cleaning manually or by machine, the surface of the photovoltaic panel 5 can be cleaned more easily compared to traditional installation methods. To enable the photovoltaic panel 5 to rotate around the connecting roller shaft 4, a traction reel 7 is installed on the photovoltaic mounting plate 3 above the photovoltaic panel mating groove 6. One end of the traction rope 8 extending from the traction reel 7 is connected to the photovoltaic panel 5, which is in movable contact with the photovoltaic panel mating groove 6. When it is necessary to adjust the rotation angle of the photovoltaic panel 5, the traction reel is driven... The rotation of 7 enables the winding or unwinding of the traction rope 8, thereby adjusting the angle of the photovoltaic panel 5. The rotating mechanism that drives the traction reel 7 to rotate is a worm gear mechanism. The worm wheel 15 of the worm gear mechanism is coaxial with and fixedly installed on the traction reel 7. The worm 16 of the worm gear mechanism is fixedly connected to the drive shaft of the drive motor 17. The drive motor 17 is fixedly installed on the photovoltaic mounting plate 3. Since the worm gear mechanism has a reverse locking characteristic, this characteristic is used to enable the photovoltaic panel 5 to be suspended and stably maintained at any angle. In addition, when the photovoltaic panel 5 is naturally lowered in the traction line disc 7, the surface of the photovoltaic panel 5 is cleaned by the scraping mechanism, specifically, before cleaning, the surface of the photovoltaic panel 5 is sprayed with a cleaning medium by using the spraying mechanism, when the spraying of the cleaning medium is completed, the photovoltaic panel 5 is changed to be naturally lowered, at this time, the scraping mechanism is lowered under the action of its own gravity to overcome the traction mechanism, thereby scraping the surface of the photovoltaic panel 5, when the photovoltaic panel 5 is embedded in the photovoltaic panel matching groove 6 after being wound on the traction line disc 7, the scraping mechanism is restored to the reset state by being pulled by the traction mechanism to the side close to the connecting roller shaft 4, through the above arrangement, the automatic scraping operation of the surface of the photovoltaic panel 5 is realized, further, the traction mechanism includes spring seats 9 arranged on both sides of the photovoltaic panel 5 close to the connecting roller shaft 4, the spring seats 9 on both sides are connected with traction springs 10, the traction springs 10 on both sides are connected with the scraping mechanism on both sides respectively, the scraping mechanism includes a scraping frame 11 arranged in parallel with the connecting roller shaft 4, the scraping frame 11 is provided with a cleaning scraping strip 12 abutting against the surface of the photovoltaic panel 5 on one side. Embodiment

[0020] The side of the scraping frame 11 close to the photovoltaic panel 5 is further provided with a plurality of evenly spaced spray heads 13, the plurality of spray heads 13 are communicated with a liquid storage tank 14 mounted on the scraping frame 11, the liquid storage tank 14 pumps liquid into the inside through a liquid supply pipeline when the photovoltaic panel 5 is naturally lowered, further, the connecting roller shaft 4 is a hollow structure, one end of the connecting roller shaft 4 is connected with a fluid on-off shaft 18, the fluid on-off shaft 18 is communicated with the hollow structure of the connecting roller shaft 4 through an inlet hole 19, the side of the connecting roller shaft 4 away from the fluid on-off shaft 18 is connected with a liquid outlet shaft 20, the liquid outlet shaft 20 is provided with a liquid outlet hole 21 communicated with the connecting roller shaft 4, the liquid outlet hole 21 of the liquid outlet shaft 20 is sleeved in a limiting sleeve 22, the limiting sleeve 22 is fixedly connected with the spring seat 9 on the same side, the spring seat 9 and the liquid storage tank 14 are further provided with a liquid supply pipeline 23, the cleaning medium pumped into the inlet hole 19 finally enters the liquid storage tank 14 through the connecting roller shaft 4, the liquid outlet hole 21, the limiting sleeve 22, the spring seat 9 and the liquid supply pipeline 23.

[0021] In this embodiment, the scraping frame 11 is further provided with the spray head 13, through the arrangement of the spray head 13, the surface of the photovoltaic panel 5 can be sprayed before scraping, specifically, the spray head 13 is communicated with the liquid storage tank 14 mounted on the scraping frame 11, and the liquid storage tank 14 is communicated with the inlet hole 19, the cleaning medium pumped into the inlet hole 19 finally enters the liquid storage tank 14, and with the continuous pumping of the cleaning medium, the cleaning medium is sprayed on the surface of the photovoltaic panel 5 through the spray head 13, finally completing the spraying of the surface of the photovoltaic panel 5, and with the scraping of the cleaning scraping strip 12, the cleaning ability of the surface of the photovoltaic panel 5 can be further improved. Embodiment

[0022] The fluid on-off shaft 18 and the liquid outlet shaft 20 are movably inserted into the positioning holes 24 arranged at both ends of the photovoltaic mounting plate 3, the positioning hole 24 where the fluid on-off shaft 18 is located also communicates with the pump liquid hole 25, the pump liquid hole 25 communicates with the external pump liquid mechanism through a pipeline, when the photovoltaic panel 5 naturally droops under the action of gravity, the pump liquid hole 25 cooperates with the liquid inlet hole 19 arranged on the fluid on-off shaft 18, when the photovoltaic panel 5 is embedded into the photovoltaic panel cooperating groove 6 after being wound by the traction line disc 7, the pump liquid hole 25 is disengaged from the liquid inlet hole 19, since the pump liquid hole 25 communicates with the external pump liquid mechanism through a pipeline, when the pump liquid hole 25 cooperates with the liquid inlet hole 19 in the natural drooping state, the cleaning medium pumped from the external pump liquid mechanism can enter the liquid inlet hole 19, on the contrary, when the photovoltaic panel 5 is in the working state, the cleaning medium cannot enter the liquid inlet hole 19, in this way, the photovoltaic panel 5 can only be cleaned when it is at a specific angle, further, in order to ensure the sealing of the direct cooperation between the pump liquid hole 25 and the liquid inlet hole 19, a rubber sealing ring can be arranged on both sides of the liquid inlet hole 19 of the fluid on-off shaft 18, so as to prevent the leakage of the liquid medium.

[0023] A photovoltaic power station, which adopts the double-column fixed photovoltaic square array support.

[0024] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A double-column fixed photovoltaic array support, comprising a plurality of front supports arranged in a matrix and a plurality of rear supports arranged in a matrix and corresponding to the front supports, wherein: The front support and the rear support are both hingedly provided with the same photovoltaic mounting plate, one side of the photovoltaic mounting plate is rotatably provided with a connecting roller shaft, the connecting roller shaft is fixedly connected with the side edge of the photovoltaic panel through an embedded groove, the photovoltaic panel rotates around the axis of the connecting roller shaft to change the overturning state, the photovoltaic mounting plate away from the connecting roller shaft is provided with a photovoltaic panel matching groove, one end of the photovoltaic panel away from the connecting roller shaft is movably matched with the photovoltaic panel matching groove arranged on the adjacent photovoltaic mounting plate, the photovoltaic mounting plate above the photovoltaic panel matching groove is provided with a traction line reel, one end of the traction rope drawn out of the traction line reel is connected to the photovoltaic panel movably matched with the photovoltaic panel matching groove, the traction line reel drives the traction rope to wind and unwind under the driving of a rotating mechanism, the traction rope makes the photovoltaic panel complete the overturning movement around the axis of the connecting roller shaft in the winding and unwinding process; The photovoltaic panel is further movably provided with a scraping mechanism close to the connecting roller shaft and parallel to the connecting roller shaft in the reset state, the scraping mechanism is connected with the traction mechanism, when the photovoltaic panel naturally droops in the unwinding of the traction line reel, the scraping mechanism descends under the action of its own gravity to overcome the traction mechanism and scrape the surface of the photovoltaic panel, when the photovoltaic panel is embedded in the photovoltaic panel matching groove after the winding of the traction line reel, the scraping mechanism restores to the reset state under the traction of the traction mechanism.

2. A two post fixed photovoltaic array rack as claimed in claim 1, wherein: The traction mechanism comprises spring seats arranged on both sides of the photovoltaic panel close to the connecting roller shaft, the spring seats on both sides are both connected with traction springs, and the traction springs on both sides are respectively connected to both sides of the scraping mechanism.

3. A two-column fixed photovoltaic array support according to claim 1 or 2, characterized in that: The scraping mechanism comprises a scraping frame arranged in parallel with the connecting roller shaft, and the scraping frame is provided with a cleaning scraping strip abutting against the surface of the photovoltaic panel on one side.

4. A two post fixed photovoltaic array support according to claim 3, wherein: The scraping frame is further provided with a plurality of evenly spaced spray heads close to the photovoltaic panel, the plurality of spray heads are communicated with a liquid storage tank mounted on the scraping frame, and the liquid storage tank pumps liquid into the interior through a liquid supply pipeline when the photovoltaic panel naturally droops.

5. A two post fixed photovoltaic array rack as claimed in claim 1, wherein: The rotating mechanism driving the rotation of the traction line reel is a worm and gear mechanism, the worm wheel of the worm and gear mechanism is coaxial with the traction line reel and is fixedly arranged, the worm of the worm and gear mechanism is fixedly connected with the driving shaft of a driving motor, and the driving motor is fixedly arranged on the photovoltaic mounting plate.

6. A two post fixed photovoltaic array rack as claimed in claim 4, wherein: The connecting roller shaft is a hollow structure, one end of the connecting roller shaft is connected with a fluid on-off rotating shaft, the fluid on-off rotating shaft is communicated with the hollow structure of the connecting roller shaft through an inlet hole, the connecting roller shaft away from the fluid on-off rotating shaft is connected with an outlet rotating shaft, the outlet rotating shaft is provided with an outlet hole communicated with the connecting roller shaft, the outlet hole of the outlet rotating shaft is sleeved in a limiting sleeve, the limiting sleeve is fixedly connected with the spring seat on the same side, and a liquid supply pipeline is further arranged between the spring seat and the liquid storage tank. The cleaning medium pumped into the inlet hole passes through the connecting roller shaft, the outlet hole, the limiting sleeve, the spring seat and the liquid supply pipeline and finally enters the liquid storage tank.

7. A two-post fixed photovoltaic array support according to claim 6, wherein: The fluid on-off rotating shaft and the liquid outlet rotating shaft are movably inserted into the positioning holes arranged at the two ends of the photovoltaic mounting plate, the positioning hole of the fluid on-off rotating shaft also communicates with the pump liquid hole, the pump liquid hole communicates with the external pump liquid mechanism through a pipeline, when the photovoltaic panel naturally droops under the action of gravity, the pump liquid hole cooperates with the liquid inlet hole arranged on the fluid on-off rotating shaft, when the photovoltaic panel is embedded into the cooperating groove after the traction line reel is wound, the pump liquid hole is disengaged from the liquid inlet hole.

8. A photovoltaic power plant, characterized by: The photovoltaic power station adopts the double-column fixed photovoltaic square array support according to any one of claims 1-7.

Images