Photovoltaic power generation device

Abstract

The invention discloses a photovoltaic power generation device, and belongs to the field of photovoltaic power generation. A photovoltaic power generation device comprises a base, the top of the base is fixedly connected with a reciprocating screw rod, the top of the reciprocating screw rod is rotatably connected with a mounting disc, multiple sets of photovoltaic panels are hinged to the mounting disc at equal intervals, the photovoltaic power generation device further comprises a folding and unfolding mechanism, the folding and unfolding mechanism is arranged on the reciprocating screw rod, and the folding and unfolding mechanism is used for adjusting the inclination angles of the photovoltaic panels; the cleaning assembly is arranged on the photovoltaic panel, and the cleaning assembly is used for cleaning the surface of the photovoltaic panel; according to the photovoltaic panel cleaning device, the folding and unfolding sliding sleeve slides up and down to be matched with the arrangement of a pull rope, so that the cleaning brush rod slides on the photovoltaic panel, the illumination surface of the photovoltaic panel is cleaned, the cleanliness of the illumination surface of the photovoltaic panel is improved, shielding of dust, impurities and the like on sunlight is reduced, it is ensured that the photovoltaic panel can receive enough illumination quantity, and the photovoltaic panel cleaning device is convenient to use. And the photovoltaic power generation efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a photovoltaic power generation device. Background Art

[0002] Photovoltaic power generation technology uses the process of converting sunlight directly into electrical energy. This process is based on the photovoltaic effect, which is when certain materials (such as silicon) are exposed to light, electrons move, forming an electric current. Photovoltaic power generation systems usually include the following key components: photovoltaic panels, inverters, energy storage systems, control and monitoring systems, support systems, and connection and distribution equipment. Photovoltaic power generation has the advantages of being environmentally friendly and renewable, and is widely used in various occasions, including but not limited to residential, commercial buildings, agricultural facilities, and large ground power stations. With technological advances and cost reductions, photovoltaic power generation has become one of the clean energy sources promoted and used worldwide.

[0003] At present, during the use of photovoltaic panels, a certain amount of dust and impurities will adhere to the surface, which will block the sunlight, resulting in the photovoltaic panels not receiving enough light, thereby reducing the photovoltaic power generation efficiency; and because the photovoltaic panels are set up outdoors, birds often stay or even build nests, and the bird activities will produce pollutants on the surface of the photovoltaic panels and their structural components, resulting in reduced power generation efficiency and increased maintenance costs. Therefore, a photovoltaic power generation device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that dust and impurities attached to the surface of photovoltaic panels will block sunlight, thereby reducing the efficiency of photovoltaic power generation; and birds staying or nesting at the photovoltaic power generation device will produce pollutants on the surface of the photovoltaic panels and their structural components, thereby causing reduced power generation efficiency and increased maintenance costs, and a photovoltaic power generation device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A photovoltaic power generation device includes a base, a reciprocating screw rod is fixedly connected to the top of the base, a mounting plate is rotatably connected to the top of the reciprocating screw rod, and a plurality of groups of photovoltaic panels are hingedly connected at equal intervals on the mounting plate. The device also includes: a retracting and extending mechanism, which is arranged on the reciprocating screw rod and is used to adjust the inclination angle of the photovoltaic panel; and a cleaning component, which is arranged on the photovoltaic panel and is used to clean the surface of the photovoltaic panel.

[0007] In order to facilitate the storage and deployment of photovoltaic panels, preferably, the storage and deployment mechanism includes a storage and deployment sleeve, which is threaded on the reciprocating screw, and the side wall of the storage and deployment sleeve has the same number of first hinge seats as the photovoltaic panels fixed at equal intervals, and the bottom of the photovoltaic panel is fixedly connected to a second hinge seat, and a storage and deployment pull rod is rotatably connected between the second hinge seat and the first hinge seat that are aligned, and a servo motor is fixedly connected in the base, and the top end of the output shaft of the servo motor is fixedly connected to the bottom end of the reciprocating screw.

[0008] In order to improve the cleanliness of the surface of the photovoltaic panels, preferably, the cleaning assembly includes guide rails, which are respectively fixed on the two side edges of each group of photovoltaic panels, and a limiting guide groove is provided in the guide rail. A counterweight slider is fitted and slides in the limiting guide groove, and the outer end of the counterweight slider is fixedly connected to a cleaning brush rod, and the bottom end of the brush of the cleaning brush rod is in contact with the surface of the photovoltaic panel.

[0009] Furthermore, a positioning plate is rotatably connected to the lower part of the outer wall of the reciprocating screw, and a plurality of groups of guide sliding plates are fixed at equal intervals on the outer wall of the positioning plate. A pull rope is fixedly connected to the side wall of the cleaning brush rod, and the other end of the pull rope passes through the guide sliding plate and is fixedly connected to the bottom of the retractable and unfolding sleeve, and the gravity of the counterweight slider is greater than the friction force generated between it and the limiting guide groove.

[0010] In order to achieve the positioning effect, preferably, a plurality of groups of positioning rods are fixedly connected at equal intervals to the bottom end of the mounting plate, and the bottom ends of the positioning rods pass through the positioning plate and are fixedly connected to the top of the base.

[0011] In order to improve the cleaning effect, preferably, the photovoltaic panel is designed in an "eight" shape, and a telescopic rod is slidably inserted between the two groups of cleaning brush rods located on the same photovoltaic panel. The telescopic rod is connected to the inner cavity of the cleaning brush rod, and blowing holes are evenly spaced on one side of the telescopic rod perpendicular to the photovoltaic panel, and a guide portion for filling air into the telescopic rod is provided in the mounting plate.

[0012] Furthermore, the guide part includes a driving groove, which is opened inside the mounting plate, and the top end of the reciprocating screw rod passes through the driving groove, and a plurality of groups of piston grooves are opened on the side wall of the driving groove at equal intervals, and the plurality of groups of piston grooves are connected by through grooves, and a piston plate is slidably connected in the piston groove, and a first spring is fixedly connected between the side wall of the piston plate and the inner wall of the piston groove, and a strong magnetic plate is fixed at equal intervals on the outer wall of the reciprocating screw rod located in the driving groove, and the strong magnetic plate and the piston plate are magnetically repelled, an air guide groove is arranged in the guide rail, and an air guide pipe is fixed on the top of the piston groove and connected, and the other end of the air guide pipe is connected to the inner cavity of the air guide groove, and a one-way valve is arranged in the air guide pipe, and a plurality of groups of air guide holes are opened on the side wall of the air guide groove, and a closing part for changing the opening state of the air guide holes at different positions is arranged in the air guide groove.

[0013] Furthermore, the closing and opening part includes a second spring, which is fixed at each group of air guide holes in the air guide groove. The ends of the second spring are fixedly connected to a sealing plate, and there is magnetic repulsion between the sealing plate and the counterweight slider. A ventilation groove is opened in the counterweight slider, and the output end of the ventilation groove is connected to the inner cavity of the cleaning brush rod.

[0014] In order to improve the power generation effect, preferably, the bottom end of the positioning rod is fixedly connected with an air intake column, the air intake column is rotatably connected with a pneumatic impeller, the air intake pipe is fixed on and connected to the air intake column, the top of the inner cavity of the positioning rod is connected with the inner cavity of the piston groove, and a one-way valve is arranged in the connecting pipe between the positioning rod and the piston groove, the bottom of the inner cavity of the positioning rod is connected with the inner cavity of the air intake column, and the positioning rod is slidably connected with an impact rod, the upper and lower parts of the inner wall of the positioning rod are fixedly connected with a limiting ring, a third spring is fixedly connected between the outer wall of the impact rod and the top of the limiting ring located at the lower part, and a magnetic plate is fixedly connected to each impeller of the pneumatic impeller.

[0015] Furthermore, the magnetism between two adjacent groups of magnetic plates is opposite, and the magnetic plates are magnetically connected to the bottom end of the impact rod.

[0016] Compared with the prior art, the present invention provides a photovoltaic power generation device having the following beneficial effects:

[0017] 1. The photovoltaic power generation device, through the up and down sliding of the retractable and unfolded sliding sleeve in conjunction with the setting of the pull rope, allows the cleaning brush rod to slide on the photovoltaic panel, so as to clean the illuminated surface of the photovoltaic panel, thereby improving the cleanliness of the illuminated surface of the photovoltaic panel, reducing the obstruction of sunlight by dust and impurities, ensuring that the photovoltaic panel can receive sufficient light, and effectively improving the efficiency of photovoltaic power generation.

[0018] 2. The photovoltaic power generation device uses the repulsive effect of the strong magnetic plate and the piston plate to continuously compress the airflow into the air guide groove, and cooperates with the repulsive effect of the sealing plate and the counterweight slider to make the compressed gas enter the cleaning brush rod in a directional manner, and finally be discharged to the surface of the photovoltaic panel through the blowing hole, thereby generating a wind force with impact on the surface of the photovoltaic panel, and then cooperates with the above-mentioned cleaning effect to effectively clean the attachments on the surface of the photovoltaic panel, ensuring the cleanliness of the surface of the photovoltaic panel.

[0019] 3. The photovoltaic power generation device uses the suction effect generated by the first spring to drive the piston plate to reset in the piston groove, so that the external airflow enters the piston groove along the intake pipe, the intake column, and the positioning rod cavity for replenishment, so as to ensure the continuous blowing effect. At the same time, the airflow will also drive the wind impeller to rotate. With the cooperation of the magnetic plate, the impact rod, the third spring and the limit ring, the device as a whole vibrates and emits a slight sound, so as to facilitate the shaking off of dust and impurities attached to the photovoltaic panel. Secondly, the sound can be used to drive away birds, which effectively ensures the power generation efficiency and saves maintenance costs.

[0020] 4. The photovoltaic power generation device can push multiple groups of photovoltaic panels outward and expand them by sliding the retracting and unfolding sleeve upward, forming a fully open and closed "umbrella"-like structure to better receive light and improve the photovoltaic power generation effect; by sliding the retracting and unfolding sleeve downward, multiple groups of photovoltaic panels can be retracted to reduce the damage to the photovoltaic panels caused by wind, rain, snow, etc. in bad weather, thereby improving the durability of the photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The overall structure of a photovoltaic power generation device proposed by the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The overall structure of a photovoltaic power generation device proposed by the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 A schematic diagram of a side view and half-section structure of a photovoltaic power generation device proposed by the present invention;

[0024] Figure 4 A photovoltaic power generation device proposed by the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0025] Figure 5 A photovoltaic power generation device proposed by the present invention Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0026] Figure 6 A schematic diagram of the transverse cross-sectional structure of a mounting plate of a photovoltaic power generation device proposed by the present invention;

[0027] Figure 7 A schematic diagram of the internal structure of a cleaning brush rod of a photovoltaic power generation device proposed by the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of a guide rail of a photovoltaic power generation device proposed by the present invention.

[0029] In the figure: 1, base; 2, reciprocating screw rod; 3, mounting plate; 4, photovoltaic panel; 41, second hinge seat; 5, retractable sleeve; 51, first hinge seat; 52, retractable pull rod; 53, servo motor; 6, guide rail; 61, limit guide groove; 62, counterweight slider; 621, ventilation groove; 63, cleaning brush rod; 64, positioning plate; 641, guide slide plate; 65, pull rope; 66, telescopic rod; 661, blower hole; 67, air guide groove; 671, air guide hole; 68, second spring; 681, blocking plate; 7, positioning rod; 71, impact rod; 72, limiting ring; 73, third spring; 8, driving groove; 81, piston groove; 811, through groove; 82, piston plate; 83, first spring; 84, strong magnetic plate; 85, air guide pipe; 9, air intake column; 91, pneumatic impeller; 911, air intake pipe; 912, magnetic plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Example:

[0033] Reference Figure 1-Figure 8 A photovoltaic power generation device includes a base 1, a reciprocating screw rod 2 is fixedly connected to the top of the base 1, a mounting plate 3 is rotatably connected to the top of the reciprocating screw rod 2, and multiple groups of photovoltaic panels 4 are hinged at equal intervals on the mounting plate 3, and the photovoltaic panels 4 are preferably six groups here, and also include: a retracting and extending mechanism, which is arranged on the reciprocating screw rod 2, and the retracting and extending mechanism is used to adjust the inclination angle of the photovoltaic panel 4; a cleaning component, which is arranged on the photovoltaic panel 4, and the cleaning component is used to clean the surface of the photovoltaic panel 4.

[0034] Reference Figure 1-Figure 3The retracting and unfolding mechanism includes a retracting and unfolding sleeve 5, which is threadedly sleeved on the reciprocating screw 2, and the side wall of the retracting and unfolding sleeve 5 is evenly spaced with the same number of first hinge seats 51 as the photovoltaic panels 4, and the bottom of the photovoltaic panel 4 is fixedly connected with a second hinge seat 41, and a retracting and unfolding pull rod 52 is rotatably connected between the aligned second hinge seat 41 and the first hinge seat 51, and a servo motor 53 is fixedly connected inside the base 1, and the top end of the output shaft of the servo motor 53 is fixedly connected to the bottom end of the reciprocating screw 2.

[0035] Through the arrangement of the above-mentioned structure, the servo motor 53 is turned on to drive the reciprocating screw 2 to rotate, so that the retracting and unfolding sleeve 5 slides along the reciprocating screw 2. When the retracting and unfolding sleeve 5 slides upward, the cooperation between the first hinge seat 51, the retracting and unfolding pull rod 52 and the second hinge seat 41 will cause the photovoltaic panel 4 to be pushed outward to form a fully opened and closed "umbrella" structure, so as to better receive light and improve the photovoltaic power generation effect; when the retracting and unfolding sleeve 5 slides downward along the reciprocating screw 2, the photovoltaic panel 4 will be retracted, thereby reducing the damage to the photovoltaic panel 4 caused by wind, rain, snow, etc. in bad weather, thereby improving the durability of the photovoltaic panel 4.

[0036] Reference Figure 1-Figure 3 , Figure 7 and Figure 8 , wherein the cleaning assembly includes a guide rail 6, which is fixed on the two side edges of each group of photovoltaic panels 4, a limited guide groove 61 is provided in the guide rail 6, and a counterweight slider 62 is fitted and slid in the limited guide groove 61, and the outer ends of the counterweight sliders 62 are fixedly connected with cleaning brush rods 63, and the bottom ends of the brushes of the cleaning brush rods 63 are fitted with the surface of the photovoltaic panel 4; the photovoltaic panel 4 is designed in an "eight" shape, and a telescopic rod 66 is slidably inserted between the two groups of cleaning brush rods 63 located on the same photovoltaic panel 4; the lower part of the outer wall of the reciprocating screw rod 2 is rotatably connected with a positioning plate 64, and a plurality of groups of guide sliding plates 641 are fixed at equal intervals on the outer wall of the positioning plate 64, wherein the guide sliding plates 641 are preferably twelve groups, and the side wall of the cleaning brush rod 63 is fixedly connected with a pull rope 65, and the other end of the pull rope 65 passes through the guide sliding plate 641 and is fixedly connected to the bottom of the retractable sliding sleeve 5, and the gravity of the counterweight slider 62 is greater than the friction generated between it and the limited guide groove 61.

[0037] Through the arrangement of the above structure, as the retracting and unfolding sleeve 5 moves upward, the pull rope 65 will also be pulled upward along with the retracting and unfolding sleeve 5, thereby pulling the cleaning brush rod 63 to move upward from the bottom of the photovoltaic panel 4, so that the cleaning brush rod 63 cleans the surface of the photovoltaic panel 4, thereby improving the cleanliness of the light-receiving surface of the photovoltaic panel 4, reducing the blocking of sunlight by dust and impurities, etc., ensuring that the photovoltaic panel 4 can receive sufficient light, and effectively improving the photovoltaic power generation efficiency. In addition, in conjunction with the sliding and plugging arrangement of the telescopic rod 66 and the cleaning brush rod 63, it can be adaptively adjusted according to the change in the width of the photovoltaic panel 4, thereby achieving comprehensive cleaning and improving the cleaning effect; when the retracting and unfolding sleeve 5 slides downward along the reciprocating screw rod 2, the pull rope 65 will be loosened, and at this time the photovoltaic panel 4 will gradually tilt downward. Under the action of the gravity of the counterweight slider 62, the cleaning brush rod 63 and the telescopic rod 66, the above components will move downward along the surface of the photovoltaic panel 4 at the same time, thereby once again realizing the above cleaning function and further improving the cleaning effect.

[0038] Reference Figure 1-Figure 3 , wherein, a plurality of groups of positioning rods 7 are fixedly connected at equal intervals at the bottom end of the mounting plate 3, wherein the positioning rods 7 are preferably three groups, and the bottom ends of the positioning rods 7 pass through the positioning plate 64 and are fixedly connected to the top of the base 1; in this way, the mounting plate 3 and the positioning plate 64 can be limited so that they remain relatively stationary when the reciprocating screw 2 rotates, thereby ensuring the smooth operation of the device.

[0039] Reference Figure 4 , Figure 6-Figure 8, wherein the telescopic rod 66 is connected to the inner cavity of the cleaning brush rod 63, and a blowing hole 661 is evenly spaced on one side of the telescopic rod 66 perpendicular to the photovoltaic panel 4, and a guide portion for filling the telescopic rod 66 with air flow is provided in the mounting plate 3; the guide portion includes a driving groove 8, the driving groove 8 is opened inside the mounting plate 3, and the top end of the reciprocating screw rod 2 penetrates into the driving groove 8, and a plurality of groups of piston grooves 81 are evenly spaced on the side wall of the driving groove 8, wherein the piston grooves 81 are preferably three groups, and the plurality of groups of piston grooves 81 are connected by through grooves 811, a piston plate 82 is slidably connected in the piston groove 81, a first spring 83 is fixedly connected between the side wall of the piston plate 82 and the inner wall of the piston groove 81, and a strong magnetic plate 84 is evenly fixed on the outer wall of the reciprocating screw rod 2 located in the driving groove 8, wherein the strong magnetic plate 84 is preferably There are three groups, the strong magnetic plate 84 and the piston plate 82 are magnetically repelled, an air guide groove 67 is arranged in the guide rail 6, the top of the piston groove 81 is fixed and connected with an air guide pipe 85, the other end of the air guide pipe 85 is connected with the inner cavity of the air guide groove 67, and a one-way valve is arranged in the air guide pipe 85, a plurality of groups of air guide holes 671 are arranged on the side wall of the air guide groove 67, and a closing and opening part for changing the opening state of the air guide holes 671 at different positions is arranged in the air guide groove 67; the closing and opening part includes a second spring 68, the second spring 68 is fixed at each group of air guide holes 671 in the air guide groove 67, the ends of the second spring 68 are fixedly connected with a blocking plate 681, the blocking plate 681 and the counterweight slider 62 are magnetically repelled, a ventilation groove 621 is arranged in the counterweight slider 62, and the output end of the ventilation groove 621 is connected with the inner cavity of the cleaning brush rod 63.

[0040] It should be noted that the one-way valve in the air guide pipe 85 can only allow the gas in the piston groove 81 to enter the air guide groove 67 .

[0041] By setting the above structure, when the reciprocating screw rod 2 rotates, the repulsion between the strong magnetic plate 84 and the piston plate 82 is utilized. When the two are in a repulsive state, the piston plate 82 will move toward the side of the first spring 83, thereby compressing the gas in the piston groove 81, and thereby opening the one-way valve in the air guide pipe 85, so that the compressed gas enters the air guide groove 67 along the air guide pipe 85. When the cleaning brush rod 63 slides, it will pull the counterweight slider 62 to slide in the air guide groove 67. At this time, the repulsion between the blocking plate 681 and the counterweight slider 62 is utilized. When the ventilation groove 67 is opened, the counterweight slider 62 is pressed against the sealing plate 681. When the air guide hole 671 moves to the connected area, the blocking plate 681 will move to the side of the compressed second spring 68, so that the air groove 621 and the air guide hole 671 are connected to each other, so that the compressed gas enters the cleaning brush rod 63 along the air guide hole 671 and the air groove 621, and is finally discharged to the surface of the photovoltaic panel 4 along the blowing hole 661 set at the bottom of the telescopic rod 66, thereby generating a wind effect with impact on the surface of the photovoltaic panel 4, and combined with the above-mentioned cleaning effect, the attachments on the surface of the photovoltaic panel 4 are effectively cleaned, ensuring the cleanliness of the surface of the photovoltaic panel 4.

[0042] Reference Figure 3-Figure 5 , wherein the bottom end of the positioning rod 7 is fixedly connected with an air intake column 9, a pneumatic impeller 91 is rotatably connected inside the air intake column 9, an air intake pipe 911 is fixed on and connected to the air intake column 9, the top of the inner cavity of the positioning rod 7 is connected with the inner cavity of the piston groove 81, and a one-way valve is arranged in the connecting pipe between the positioning rod 7 and the piston groove 81, the bottom of the inner cavity of the positioning rod 7 is connected with the inner cavity of the air intake column 9, and a striking rod 71 is slidably connected inside the positioning rod 7, the upper and lower parts of the inner wall of the positioning rod 7 are fixedly connected with a limiting ring 72, a third spring 73 is fixedly connected between the outer wall of the striking rod 71 and the top of the limiting ring 72 located at the bottom, and a magnetic plate 912 is fixedly connected to each impeller of the pneumatic impeller 91; the magnetism between two adjacent groups of magnetic plates 912 is opposite, and the magnetic plate 912 is magnetically connected to the bottom end of the striking rod 71.

[0043] It should be noted that the one-way valve in the pipeline connecting the positioning rod 7 and the piston groove 81 can only allow the gas in the positioning rod 7 to enter the piston groove 81 .

[0044] Through the arrangement of the above structure, when the strong magnetic plate 84 and the piston plate 82 are separated from the repulsive area, the piston plate 82 will return to its original position and slide under the rebound action of the first spring 83. At this time, a suction effect will be generated in the piston groove 81, thereby opening the one-way valve in the connecting pipe between the positioning rod 7 and the piston groove 81, so that the external airflow enters the piston groove 81 along the intake pipe 911, the intake column 9, and the positioning rod 7 cavity. Under the action of the above-mentioned gas flow, the pneumatic impeller 91 will be driven to rotate. At this time, when the magnetic plate 912 and the impact rod 71 are in a repulsive state, the impact rod 71 will be lifted upward, thereby stretching the third spring 73 to store force. Then, when the magnetic plate 912 and the impact rod 71 switch to an attractive state, In the reset state, under the action of magnetic attraction, the gravity of the impact rod 71 and the rebound force of the third spring 73, the impact rod 71 will be quickly reset, causing a collision between the top of the impact rod 71 and the limit ring 72 located at the upper part of the inner cavity of the positioning rod 7, causing the entire device to vibrate and emit a slight sound, thereby facilitating the shaking off of dust and impurities attached to the photovoltaic panel 4. Secondly, the sound can be used to drive away birds, prevent birds from staying and nesting, and reduce the obstruction of the photovoltaic panel 4 caused by excrement, feathers and other debris brought by bird activities. At the same time, it also reduces the erosion of the bird's nest structure and the substances carried in the bird's excrement on the structural components, effectively ensuring the power generation efficiency and saving maintenance costs.

[0045] Reference Figure 1-Figure 8In the present invention, when in use, the servo motor 53 is turned on to drive the reciprocating screw rod 2 to rotate, so that the retracting and unfolding sleeve 5 slides along the reciprocating screw rod 2. When the retracting and unfolding sleeve 5 slides upward, the cooperation between the first hinge seat 51, the retracting and unfolding pull rod 52 and the second hinge seat 41 will cause the photovoltaic panel 4 to be pushed outward to form a fully opened and closed "umbrella" structure, so as to better receive light and improve the photovoltaic power generation effect; and as the retracting and unfolding sleeve 5 moves upward, the pull rope 65 will also be pulled upward along with the retracting and unfolding sleeve 5, thereby pulling the cleaning brush rod 63 to move upward from the bottom of the photovoltaic panel 4, so that the cleaning brush rod 63 cleans the surface of the photovoltaic panel 4, improves the cleanliness of the light-receiving surface of the photovoltaic panel 4, reduces the obstruction of sunlight by dust and impurities, ensures that the photovoltaic panel 4 can receive sufficient light, and effectively improves the photovoltaic power generation efficiency. In addition, the sliding plug-in setting of the telescopic rod 66 and the cleaning brush rod 63 can be adaptively adjusted according to the change in the width of the photovoltaic panel 4, realizes comprehensive cleaning, and improves the cleaning effect.

[0046] When the reciprocating screw 2 rotates, the repulsive effect between the strong magnetic plate 84 and the piston plate 82 is utilized. When the two are in a repulsive state, the piston plate 82 will move toward the side of the first spring 83, thereby compressing the gas in the piston groove 81, and thereby opening the one-way valve in the air guide pipe 85, so that the compressed gas enters the air guide groove 67 along the air guide pipe 85. While the cleaning brush rod 63 slides, it will pull the counterweight slider 62 to slide in the air guide groove 67. At this time, the repulsive effect between the blocking plate 681 and the counterweight slider 62 is utilized. When the ventilation groove 621 and the air guide When the hole 671 moves to the connected area, the sealing plate 681 will move toward the side of the compressed second spring 68, so that the ventilation groove 621 and the air guide hole 671 are connected to each other, so that the compressed gas enters the cleaning brush rod 63 along the air guide hole 671 and the ventilation groove 621, and finally is discharged to the surface of the photovoltaic panel 4 along the blowing hole 661 set at the bottom of the telescopic rod 66, thereby generating a wind force with impact on the surface of the photovoltaic panel 4, and combined with the above-mentioned cleaning effect, the attachments on the surface of the photovoltaic panel 4 are effectively cleaned, ensuring the cleanliness of the surface of the photovoltaic panel 4.

[0047] When the strong magnetic plate 84 and the piston plate 82 are separated from the repulsive area, the piston plate 82 will return to its original position and slide under the rebound action of the first spring 83. At this time, a suction effect will be generated in the piston groove 81, thereby opening the one-way valve in the connecting pipe between the positioning rod 7 and the piston groove 81, so that the external airflow enters the piston groove 81 along the intake pipe 911, the intake column 9, and the positioning rod 7 cavity. Under the action of the above-mentioned gas flow, the pneumatic impeller 91 will be driven to rotate. At this time, when the magnetic plate 912 and the impact rod 71 are in a repulsive state, the impact rod 71 will be lifted upward, thereby stretching the third spring 73 to store force. Then, when the magnetic plate 912 and the impact rod 71 switch to an attractive state, the magnetic plate 912 and the impact rod 71 are in a repulsive state. Under the action of the suction force, the gravity of the impact rod 71 and the rebound force of the third spring 73, the impact rod 71 will be quickly reset, causing an impact between the top of the impact rod 71 and the limit ring 72 located at the upper part of the inner cavity of the positioning rod 7, causing the entire device to vibrate and emit a slight sound, thereby facilitating the shaking off of dust and impurities attached to the photovoltaic panel 4. Secondly, the sound can be used to drive away birds, prevent birds from staying and nesting, and reduce the obstruction of the photovoltaic panel 4 caused by excrement, feathers and other debris brought by bird activities. At the same time, it also reduces the erosion of the bird's nest structure and the substances carried in the bird's excrement on the structural components, effectively ensuring the power generation efficiency and saving maintenance costs.

[0048] When the retracting and unfolding sleeve 5 slides downward along the reciprocating screw rod 2, the pull rope 65 will be loosened, and the photovoltaic panel 4 will gradually tilt downward at this time. Under the action of gravity of the counterweight slider 62, the cleaning brush rod 63 and the telescopic rod 66, the above components will move downward along the surface of the photovoltaic panel 4 at the same time, thereby once again realizing the above-mentioned cleaning and bird-repelling functions, and completing the contraction of the photovoltaic panel 4 at the same time, reducing the damage to the photovoltaic panel 4 caused by wind, rain, snow, etc. in bad weather, and improving the durability of the photovoltaic panel 4.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic power generation device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a reciprocating screw rod (2), the top of the reciprocating screw rod (2) is rotatably connected to a mounting plate (3), and a plurality of groups of photovoltaic panels (4) are hingedly connected at equal intervals on the mounting plate (3), and further comprises: A retracting and extending mechanism, the retracting and extending mechanism being arranged on the reciprocating screw rod (2), and being used for adjusting the inclination angle of the photovoltaic panel (4); A cleaning component is arranged on the photovoltaic panel (4), and is used to clean the surface of the photovoltaic panel (4).

2. A photovoltaic power generation device according to claim 1, characterized in that: The retracting and unfolding mechanism comprises a retracting and unfolding sleeve (5), wherein the retracting and unfolding sleeve (5) is threadedly sleeved on the reciprocating screw (2), and the side wall of the retracting and unfolding sleeve (5) is evenly spaced with a number of first hinged seats (51) equal to the number of photovoltaic panels (4), and the bottom of the photovoltaic panel (4) is fixedly connected with a second hinged seat (41), and a retracting and unfolding pull rod (52) is rotatably connected between the aligned second hinged seat (41) and the first hinged seat (51), and a servo motor (53) is fixedly connected inside the base (1), and the top end of the output shaft of the servo motor (53) is fixedly connected to the bottom end of the reciprocating screw (2).

3. A photovoltaic power generation device according to claim 2, characterized in that: The cleaning assembly comprises a guide rail (6), the guide rail (6) being fixed to the two side edges of each group of photovoltaic panels (4), the guide rail (6) being provided with a limit guide groove (61), a counterweight slider (62) slidingly fitting in the limit guide groove (61), the outer end of the counterweight slider (62) being fixedly connected to a cleaning brush rod (63), the bottom end of the brush of the cleaning brush rod (63) fitting with the surface of the photovoltaic panel (4).

4. A photovoltaic power generation device according to claim 3, characterized in that: The lower part of the outer wall of the reciprocating screw rod (2) is rotatably connected to a positioning plate (64), and a plurality of groups of guide sliding plates (641) are fixed at equal intervals on the outer wall of the positioning plate (64). The side wall of the cleaning brush rod (63) is fixedly connected to a pull rope (65), and the other end of the pull rope (65) passes through the guide sliding plate (641) and is fixedly connected to the bottom of the retractable and unfolding sliding sleeve (5), and the gravity of the counterweight slider (62) is greater than the friction force generated between it and the limiting guide groove (61).

5. A photovoltaic power generation device according to claim 4, characterized in that: The bottom end of the mounting plate (3) is fixedly connected with a plurality of groups of positioning rods (7) at equal intervals, and the bottom ends of the positioning rods (7) penetrate the positioning plate (64) and are fixedly connected with the top of the base (1).

6. A photovoltaic power generation device according to claim 5, characterized in that: The photovoltaic panel (4) is designed in an "eight" shape, and a telescopic rod (66) is slidably inserted between two groups of cleaning brush rods (63) located on the same photovoltaic panel (4), the telescopic rod (66) is connected to the inner cavity of the cleaning brush rod (63), and air blowing holes (661) are evenly spaced on one side of the telescopic rod (66) perpendicular to the photovoltaic panel (4), and a guide portion for injecting air into the telescopic rod (66) is provided in the mounting plate (3).

7. A photovoltaic power generation device according to claim 6, characterized in that: The guide portion comprises a driving groove (8), wherein the driving groove (8) is provided inside the mounting plate (3), and the top end of the reciprocating screw rod (2) penetrates into the driving groove (8), and a plurality of groups of piston grooves (81) are provided on the side wall of the driving groove (8) at equal intervals, and the plurality of groups of piston grooves (81) are connected to each other through a through groove (811), a piston plate (82) is slidably connected inside the piston groove (81), and a first spring (83) is fixedly connected between the side wall of the piston plate (82) and the inner wall of the piston groove (81), and the reciprocating screw rod (2) located in the driving groove (8) is provided with a plurality of piston grooves (81) at equal intervals. ) is fixed with strong magnetic plates (84) at equal intervals on the outer wall, the strong magnetic plates (84) and the piston plate (82) are magnetically repelled from each other, an air guide groove (67) is arranged in the guide rail (6), the top of the piston groove (81) is fixed and connected with an air guide pipe (85), the other end of the air guide pipe (85) is connected with the inner cavity of the air guide groove (67), and a one-way valve is arranged in the air guide pipe (85), a plurality of groups of air guide holes (671) are arranged on the side wall of the air guide groove (67), and a closing part for changing the opening state of the air guide holes (671) at different positions is arranged in the air guide groove (67).

8. A photovoltaic power generation device according to claim 7, characterized in that: The closing and opening portion comprises a second spring (68), the second spring (68) being fixed at each group of air guide holes (671) in the air guide groove (67), the ends of the second spring (68) being fixedly connected with a sealing plate (681), the sealing plate (681) and the counterweight slider (62) being magnetically repelled from each other, a ventilation groove (621) being provided in the counterweight slider (62), and the output end of the ventilation groove (621) being communicated with the inner cavity of the cleaning brush rod (63).

9. A photovoltaic power generation device according to claim 7, characterized in that: The bottom end of the positioning rod (7) is fixedly connected to an air intake column (9), a pneumatic impeller (91) is rotatably connected inside the air intake column (9), an air intake pipe (911) is fixed on and connected to the air intake column (9), the top of the inner cavity of the positioning rod (7) is connected to the inner cavity of the piston groove (81), and a one-way valve is provided in the connecting pipe between the positioning rod (7) and the piston groove (81), the bottom of the inner cavity of the positioning rod (7) is connected to the inner cavity of the air intake column (9), and a striking rod (71) is slidably connected inside the positioning rod (7), the upper and lower parts of the inner wall of the positioning rod (7) are fixedly connected to a limiting ring (72), a third spring (73) is fixedly connected between the outer wall of the striking rod (71) and the top of the limiting ring (72) located at the lower part, and each impeller of the pneumatic impeller (91) is fixedly connected to a magnetic plate (912).

10. A photovoltaic power generation device according to claim 9, characterized in that: The magnetism of two adjacent groups of magnetic plates (912) is opposite, and the magnetic plates (912) are magnetically connected to the bottom end of the impact rod (71).

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