Solar photovoltaic power generation automatic control device

Abstract

The invention relates to the technical field of photovoltaic panel cleaning, and particularly discloses a solar photovoltaic power generation automatic control device which comprises a support, the outer surface of the support is fixedly connected with a photovoltaic panel, the center position of the support is fixedly connected with a photoresistor, and a water pumping pipe is adopted to directly utilize water pressure to push a sliding block to slide, so that the photovoltaic panel can be automatically controlled. When water is supplied to the cleaning pipe, the sliding body is driven to slide along the guide groove under pulling of the first traction rope and the second traction rope, then the driving wheel transmits power to drive the cleaning pipe to rotate, the photovoltaic panel is cleaned through bristles on the surface of the cleaning pipe, and the cleaning efficiency of the photovoltaic panel can be greatly improved; when dust on the surface of the photovoltaic panel is accumulated to a certain degree, the photoresistor can generate voltage conversion to transmit an electric signal to the water pump to control the water pump to pump water, and through mutual cooperation of the structures, flushing can be achieved, and the photovoltaic panel can be effectively cleaned in time.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel cleaning technology, specifically to an automatic control device for solar photovoltaic power generation. Background Technology

[0002] Solar photovoltaic panels are devices that use the photovoltaic effect to directly convert sunlight into electrical energy. Their operating mode is that under the condition of solar radiation, the electrical energy converted from solar energy is sent to the DC distribution cabinet through the DC combiner box, and then inverted into AC power by the grid-connected inverter to supply the building's own load. Excess or insufficient power is regulated by connecting to the power grid. Most existing solar photovoltaic power generation systems are directly installed on rooftops. Due to the characteristics of photovoltaic panels, dust or other deposits will accumulate on their surfaces after a period of use, thus affecting the efficiency of photovoltaic power generation. This requires manual cleaning at regular intervals, which is time-consuming and labor-intensive. Therefore, we propose an automatic control device for solar photovoltaic power generation. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic control device for solar photovoltaic power generation to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic control device for solar photovoltaic power generation, comprising a bracket, wherein a photovoltaic panel is fixedly connected to the outer surface of the bracket, and a photoresistor is fixedly connected to the center of the bracket; A cleaning assembly is located on the upper outer surface of the support and at the top of the inclined position. The cleaning assembly mainly includes a cross pillow, which is fixedly connected to the upper outer surface of the support. A cleaning tube that can move along the surface of the photovoltaic panel is movably connected to one side of the cross pillow. Bristles are fixedly connected to the annular outer surface of the cleaning tube. A water pump pipe is fixedly connected to the other side of the cross pillow. The drive assembly is located at the connection between the cleaning pipe and the cross saddle. It pumps water into the cross saddle through the water pump pipe, and the water pressure drives the cleaning pipe to rotate and move, which can rinse and wipe the surface of the photovoltaic panel.

[0005] The cross pillow has a rectangular slide rail inside, and a rectangular slider is slidably connected inside the slide rail. A thrust spring is fixedly connected between the slider and the slide rail. A flexible tube is inserted into the surface of the slider, and the other end of the flexible tube is connected to a cleaning tube.

[0006] The sliding body is fixedly connected to the end of the hose away from the slider. The sliding body has a cavity inside. The outer surface of the sliding body is rotatably connected to the cleaning tube. The annular outer surface of the cleaning tube has several sets of rinsing holes. A traction rope is fixedly connected to the side of the sliding body away from the hose. A winding roller is rotatably connected to the outer surface of the crossbar through a rotating shaft. The traction rope is wound around the outer surface of the winding roller. A winding spring is fixedly connected between the winding roller and the crossbar.

[0007] The outer surface of the sliding body is fixedly connected to the slider with a second traction rope. The second traction rope is on the same side as the hose and its length is less than that of the hose.

[0008] The cleaning tube is internally connected to a blocking ring via a rotating shaft. The blocking ring has a C-shaped structure, and counterweights are fixedly connected to both sides of the opening of the blocking ring.

[0009] The bracket has a guide groove on its upper outer surface aligned with the sliding body, and a guide block is slidably connected inside the guide groove. Both the guide block and the guide groove are T-shaped structures.

[0010] The sliding body has a connecting tube running through its surface. The connecting tube is rotatably connected to the sliding body via a bearing. The annular outer surface of the connecting tube has a connecting hole located inside the cavity and aligned with the hose. One end of the connecting tube is fixedly connected to the end of the cleaning tube, and the other end is fixedly connected to a drive wheel. The drive wheel has an overall circular structure design.

[0011] The drive wheel includes an elliptical wheel, which is fixedly connected to a connecting tube. A bladder is adhered to the outer surface of the elliptical wheel. The bladder has a circular structure. A contraction cavity is formed inside the elliptical wheel. A push plate is slidably connected inside the contraction cavity. A return spring is fixedly connected between the push plate and the contraction cavity. The return spring is made of shape memory alloy. A flow channel is formed on the inner surface of the contraction cavity, and the flow channel communicates with the bladder.

[0012] The guide block has a telescopic groove on its upper outer surface, a telescopic block is slidably connected inside the telescopic groove, and a reciprocating spring is fixedly connected between the telescopic block and the telescopic groove.

[0013] This invention has at least the following beneficial effects: By using a pump pipe to directly utilize water pressure to push the slider to slide, water is supplied to the cleaning pipe. At the same time, under the pull of traction rope one and traction rope two, the slider moves along the guide groove. Then, the drive wheel transmits power to drive the cleaning pipe to rotate. The bristles on its surface clean the photovoltaic panel, which can greatly improve the cleaning efficiency of the photovoltaic panel. When the dust on the surface of the photovoltaic panel accumulates to a certain extent, the photoresistor will undergo voltage transformation and transmit the electrical signal to the water pump, controlling the water pump to complete the automatic control. Through the cooperation of the above structures, rinsing and flushing can be achieved, and the photovoltaic panel can be cleaned in a timely and effective manner, avoiding the interference of dirt with the normal operation of the photovoltaic panel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the cross-section of the cross pillow of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point C; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the thrust spring and slide rail of the present invention; Figure 7 This is a schematic diagram of the cleaning tube of the present invention; Figure 8 This is a schematic diagram of the cleaning tube and the blocking ring of the present invention; Figure 9 This is a schematic diagram of the structure of the guide block and the telescopic groove of the present invention; Figure 10 This is a schematic diagram of the structure of the second embodiment of the present invention; Figure 11 This is a cross-sectional structural diagram of the elliptical wheel of the present invention.

[0015] In the diagram: 1. Support frame; 10. Photovoltaic panel; 11. Cross pillow; 12. Pump pipe; 13. Photoresistor; 2. Cleaning assembly; 20. Cleaning pipe; 21. Flushing hole; 22. Blocking ring; 23. Counterweight bar; 24. Connecting pipe; 25. Cavity; 26. Connecting hole; 4. Drive assembly; 40. Slide rail; 41. Hose; 42. Drive wheel; 421. Leather bladder; 422. Elliptical wheel; 423. Return spring; 424. Flow channel; 425. Contraction chamber; 426. Push plate; 43. Sliding body; 44. Guide groove; 45. Guide block; 451. Telescopic groove; 452. Reciprocating spring; 453. Telescopic block; 46. Traction rope one; 47. Traction rope two; 48. Rewind spring; 49. Thrust spring; 50. Slider; 52. Rewind roller. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1 Please see Figure 1-11 The present invention provides a technical solution: an automatic control device for solar photovoltaic power generation, including a support 1, a battery and a transformer fixedly connected below the support 1, a photovoltaic panel 10 fixedly connected to the outer surface of the support 1, and a photoresistor 13 fixedly connected to the center of the support 1; Cleaning component 2 is located on the upper outer surface of the support 1 and at the top of the inclined position. The cleaning component 2 mainly includes a cross pillow 11, which is fixedly connected to the upper outer surface of the support 1. A cleaning tube 20 that can move along the surface of the photovoltaic panel 10 is movably connected to one side of the cross pillow 11. Bristles are fixedly connected to the annular outer surface of the cleaning tube 20. A water pump pipe 12 is fixedly connected to the other side of the cross pillow 11. The water pump pipe 12 can not only provide water resources to rinse the photovoltaic panel 10, but also utilize the properties of water to drive the cleaning tube 20 to rotate, further rinsing the photovoltaic panel 10. The photoresistor senses the light intensity during the day and feeds the voltage feedback to the water pump, which automatically supplies water to complete the automatic cleaning of the photovoltaic panel 10. The drive assembly 4 is located at the connection between the cleaning pipe 20 and the cross pillow 11. It pumps water into the cross pillow 11 through the water pump pipe 12. The water pressure drives the cleaning pipe 20 to rotate and move, which can rinse and wipe the surface of the photovoltaic panel 10.

[0018] The cross pillow 11 has a rectangular slide rail 40 inside, and a rectangular slider 50 is slidably connected inside the slide rail 40. A thrust spring 49 is fixedly connected between the slider 50 and the slide rail 40. A hose 41 is inserted into the surface of the slider 50, and the other end of the hose 41 is connected to the cleaning pipe 20. When the water pressure delivered by the water pump through the pump pipe 12 is sufficient, the water pressure will push the slider 50 to slide along the slide rail 40. At the same time, the liquid enters the cleaning pipe 20 through the hose 41 and is sprayed onto the surface of the photovoltaic panel 10 through the rinsing hole 21 to clean the photovoltaic panel 10.

[0019] A sliding body 43 is fixedly connected to the end of the hose 41 away from the slider 50. A cavity 25 is provided inside the sliding body 43. The outer surface of the sliding body 43 is rotatably connected to the cleaning tube 20. Several sets of rinsing holes 21 are provided on the annular outer surface of the cleaning tube 20. A traction rope 46 is fixedly connected to the side of the sliding body 43 away from the hose 41. A winding roller 52 is rotatably connected to the outer surface of the crossbar 11 through a rotating shaft. The traction rope 46 is wound around the outer surface of the winding roller 52. A winding spring 48 is fixedly connected between the winding roller 52 and the crossbar 11. When the slider 50 slides along the slide rail 40 and stretches the thrust spring 49, the winding spring 48 will wind up the winding roller 52, thereby ensuring that the sliding body 43 is in a taut state and increasing the stability of the entire structure.

[0020] A second traction rope 47 is fixedly connected between the outer surface of the sliding body 43 and the slider 50. The second traction rope 47 is on the same side as the hose 41 and its length is less than that of the hose 41. The first traction rope 46 and the second traction rope 47 work together to further ensure the stability of the sliding body 43 when sliding. The hose 41 is mainly responsible for the delivery of liquid and is not subjected to force to ensure the stability of the structure during operation. The sliding body 43 can only slide when the thrust of the water pressure plus the elastic force of the winding spring 48 is greater than the elastic force of the thrust spring 49. When the water pressure decreases, the thrust spring 49 pulls the sliding body 43 to reset, and at the same time, the first traction rope 46 pulls the winding roller 52 to put the winding spring 48 into a stored state.

[0021] The cleaning tube 20 is rotatably connected to a blocking ring 22 via a rotating shaft. The blocking ring 22 has a C-shaped structure design. Counterweights 23 are fixedly connected to both sides of the opening of the blocking ring 22. When liquid enters the cleaning tube 20, under the restriction of the blocking ring 22 and the action of the counterweights 23, the opening always faces downward. Only the downward flushing hole 21 is open. As the cleaning tube 20 rotates, the downward flushing hole 21 is always open, which can concentrate water pressure on the flushing area and improve the flushing effect.

[0022] A guide groove 44 is provided on the upper outer surface of the bracket 1 at the position aligned with the sliding body 43. A guide block 45 is slidably connected inside the guide groove 44. Both the guide block 45 and the guide groove 44 are T-shaped structures to increase the stability of the movement of the sliding body 43.

[0023] A connecting tube 24 extends through the surface of the sliding body 43. The connecting tube 24 is rotatably connected to the sliding body 43 via a bearing. A connecting hole 26 is provided on the annular outer surface of the connecting tube 24. The connecting hole 26 is located inside the cavity 25 and aligned with the hose 41. One end of the connecting tube 24 is fixedly connected to the end of the cleaning tube 20, and the other end is fixedly connected to a drive wheel 42. The drive wheel 42 has a circular structure design. By describing the position of the connecting tube 24, when the drive wheel 42 contacts the frame, the movement of the sliding body 43 will drive the drive wheel 42 to rotate. The drive wheel 42 drives the cleaning tube 20 to rotate on the surface of the photovoltaic panel 10 through the connecting tube 24, and the surface of the photovoltaic panel 10 is wiped and cleaned by the bristles. The connecting hole 26 is used to connect the cavity 25 and the cleaning tube 20. The end of the connecting tube 24 away from the sliding body 43 is open.

[0024] Example 2 The drive wheel 42 includes an elliptical wheel 422, which is fixedly connected to the connecting tube 24. A bladder 421 is adhered to the outer surface of the elliptical wheel 422. The bladder 421 has a circular structure. A contraction cavity 425 is formed inside the elliptical wheel 422. A push plate 426 is slidably connected inside the contraction cavity 425. A return spring 423 is fixedly connected between the push plate 426 and the contraction cavity 425. The return spring 423 is made of shape memory alloy. A flow channel 424 is formed on the inner surface of the contraction cavity 425, and the flow channel 424 communicates with the bladder 421. Unlike Embodiment 1, the shape of the drive wheel 42 is different. The shape is variable. When the ambient temperature is low, the return spring 423 supported by the shape memory alloy will contract, squeezing the air inside the contraction cavity 425 into the bladder 421, inflating the bladder 421 and making it round. This ensures uniform cleaning during cleaning. When the ambient temperature is high, especially on the surface of the photovoltaic panel 10, the high position causes the return spring 423 to extend, thereby drawing the monitor inside the bladder 421 into the contraction cavity 425. At this time, the bladder 421 is attached to the elliptical wheel 422. The elliptical wheel 422 rotates, causing the cleaning tube 20 to undulate up and down while rotating, increasing the downward pressure of the bristles on the photovoltaic panel 10 and enhancing the cleaning effect.

[0025] The guide block 45 has a telescopic groove 451 on its upper outer surface. A telescopic block 453 is slidably connected inside the telescopic groove 451. A reciprocating spring 452 is fixedly connected between the telescopic block 453 and the telescopic groove 451. The above design ensures that the sliding body 43 is not interfered with by movement and increases the stability of the structure.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solar photovoltaic power generation automatic control device, comprising a support (1), the outer surface of the support (1) is fixedly connected with a photovoltaic panel (10), characterized in that: A photoresistor (13) is fixedly connected to the center of the bracket (1); Cleaning component (2), the cleaning component (2) is located on the upper outer surface of the bracket (1) and at the top of the inclined position. The cleaning component (2) mainly includes a cross pillow (11). The cross pillow (11) is fixedly connected to the upper outer surface of the bracket (1). A cleaning tube (20) that can move along the surface of the photovoltaic panel (10) is movably connected to one side of the cross pillow (11). Brush bristles are fixedly connected to the annular outer surface of the cleaning tube (20). A water pump pipe (12) is fixedly connected to the other side of the cross pillow (11). The drive assembly (4) is located at the connection between the cleaning pipe (20) and the cross pillow (11). Through the water pump pipe (12), water is pumped into the cross pillow (11). The water pressure drives the cleaning pipe (20) to rotate and move, which can rinse and wipe the surface of the photovoltaic panel (10).

2. The automatic control device for solar photovoltaic power generation according to claim 1, characterized in that: The cross pillow (11) has a rectangular slide (40) inside, and a rectangular slider (50) is slidably connected inside the slide (40). A thrust spring (49) is fixedly connected between the slider (50) and the slide (40). A hose (41) is inserted on the surface of the slider (50), and the other end of the hose (41) is connected to the cleaning tube (20).

3. The automatic control device for solar photovoltaic power generation according to claim 2, characterized in that: The end of the hose (41) away from the slider (50) is fixedly connected to a sliding body (43). The sliding body (43) has a cavity (25) inside. The outer surface of the sliding body (43) is rotatably connected to the cleaning tube (20). The annular outer surface of the cleaning tube (20) has several sets of rinsing holes (21). The side of the sliding body (43) away from the hose (41) is fixedly connected to a traction rope (46). The outer surface of the cross pillow (11) is rotatably connected to a winding roller (52) through a rotating shaft. The traction rope (46) is wound around the outer surface of the winding roller (52). A winding spring (48) is fixedly connected between the winding roller (52) and the cross pillow (11).

4. The automatic control device for solar photovoltaic power generation according to claim 3, characterized in that: A second traction rope (47) is fixedly connected between the outer surface of the sliding body (43) and the slider (50). The second traction rope (47) is on the same side as the hose (41) and its length is less than that of the hose (41).

5. The automatic control device for solar photovoltaic power generation according to claim 3, characterized in that: The cleaning tube (20) is connected to a blocking ring (22) via a rotating shaft. The blocking ring (22) has a C-shaped structure design, and counterweights (23) are fixedly connected to both sides of the opening of the blocking ring (22).

6. The automatic control device for solar photovoltaic power generation according to claim 4, characterized in that: The upper outer surface of the bracket (1) is provided with a guide groove (44) aligned with the sliding body (43). A guide block (45) is slidably connected inside the guide groove (44). Both the guide block (45) and the guide groove (44) are T-shaped structures.

7. The automatic control device for solar photovoltaic power generation according to claim 6, characterized in that: The surface of the sliding body (43) is penetrated by a connecting tube (24), which is rotatably connected to the sliding body (43) through a bearing. The annular outer surface of the connecting tube (24) is provided with a connecting hole (26), which is located inside the cavity (25) and aligned with the hose (41). One end of the connecting tube (24) is fixedly connected to the end of the cleaning tube (20), and the other end is fixedly connected to a drive wheel (42). The drive wheel (42) is designed as a circular structure.

8. The automatic control device for solar photovoltaic power generation according to claim 7, characterized in that: The drive wheel (42) includes an elliptical wheel (422), which is fixedly connected to the connecting tube (24). A bladder (421) is glued to the outer surface of the elliptical wheel (422). The bladder (421) is circular in shape. A contraction cavity (425) is provided inside the elliptical wheel (422). A push plate (426) is slidably connected inside the contraction cavity (425). A return spring (423) is fixedly connected between the push plate (426) and the contraction cavity (425). The return spring (423) is made of shape memory alloy. A flow channel (424) is provided on the inner surface of the contraction cavity (425). The flow channel (424) is connected to the bladder (421).

9. The automatic control device for solar photovoltaic power generation according to claim 6, characterized in that: The guide block (45) has an expansion groove (451) on its upper outer surface. An expansion block (453) is slidably connected inside the expansion groove (451). A reciprocating spring (452) is fixedly connected between the expansion block (453) and the expansion groove (451).

Images