A micro photovoltaic power generation energy storage device and a power generation energy storage method

Abstract

The application discloses a micro photovoltaic power generation energy storage device and a power generation energy storage method, and belongs to the technical field of photovoltaic energy storage. The micro photovoltaic power generation energy storage device comprises an energy storage box, photovoltaic units are arranged at the top of the energy storage box, a wind power generation unit is arranged at the top of the energy storage box, and the wind power generation unit is located between the photovoltaic units. A folding and unfolding structure for driving the photovoltaic units to fold and unfold is arranged at the top of the energy storage box, and the folding and unfolding structure drives the wind power generation unit to lift through a lifting structure. A heat dissipation structure is arranged in the energy storage box, the heat dissipation structure is connected with the wind power generation unit through a transmission structure, and the wind power generation unit drives the heat dissipation structure to move, thereby dissipating heat for storage batteries in the energy storage box. The micro photovoltaic power generation energy storage device and the power generation energy storage method can solve the problems of poor protection effect of existing power generation energy storage devices in extreme weather and poor heat dissipation effect of energy storage boxes, and can realize automatic cleaning of the photovoltaic units, thereby being convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic energy storage, and particularly relates to a micro photovoltaic power generation energy storage device and a power generation energy storage method. BACKGROUND

[0002] In the current process of energy technology development, photovoltaic power generation energy storage devices are increasingly widely used in the field of distributed energy, and they play an important role in remote power supply, outdoor equipment energy supply and other scenarios due to their small size, flexible installation and other characteristics. However, the existing photovoltaic power generation energy storage devices still have many problems to be solved in practical application.

[0003] From the perspective of energy utilization efficiency, most traditional devices only rely on a single photovoltaic power generation mode, and when the light condition is poor, the power generation efficiency will be greatly reduced, making it difficult to achieve continuous and stable energy supply. Moreover, its structure usually adopts a fixed design, which on the one hand occupies a large space during transportation, increasing the transportation cost and difficulty; on the other hand, when extreme weather (such as heavy rain, strong wind, etc.) is encountered, it lacks effective protection mechanism, which is easy to cause damage to the core components such as photovoltaic panels, affecting the service life and reliability of the device.

[0004] In terms of maintenance convenience, the existing devices generally lack automatic cleaning structure. With the increase of device usage time, dust, debris and other coverings are easily accumulated on the surface of the photovoltaic panel, which will seriously affect the light energy absorption efficiency of the photovoltaic panel, and thus reduce the power generation performance. At the same time, the storage battery in the energy storage box will generate heat during charging and discharging, and if the heat is not dissipated in time, it will not only affect the charging and discharging efficiency of the storage battery, but also shorten the service life of the storage battery due to high temperature, and even there is a safety hazard.

[0005] In summary, how to improve the comprehensive utilization rate of energy, enhance the transportation convenience and protection capability of the device, and realize automatic cleaning and efficient heat dissipation, has become a key technical problem to be solved in the field of photovoltaic power generation energy storage devices. SUMMARY

[0006] The purpose of the present application is to provide a micro photovoltaic power generation energy storage device and a power generation energy storage method, which solves the problems of poor protection effect of the existing power generation energy storage device in response to extreme weather and poor heat dissipation effect of the energy storage box.

[0007] In order to achieve the above-mentioned purpose, the application provides a micro photovoltaic power generation energy storage device, which comprises an energy storage box, photovoltaic units are arranged on both sides of the top of the energy storage box, a wind power generation unit is arranged on the top of the energy storage box and located between the photovoltaic units, a folding and unfolding structure for driving the photovoltaic units to fold and unfold is arranged on the top of the energy storage box, the folding and unfolding structure drives the wind power generation unit to lift and fall through a lifting structure, a heat dissipation structure is arranged in the energy storage box, the heat dissipation structure is connected with the wind power generation unit through a transmission structure, and the wind power generation unit drives the heat dissipation structure to move to dissipate heat for the storage battery in the energy storage box.

[0008] Preferably, the photovoltaic unit comprises an intermediate photovoltaic panel, the intermediate photovoltaic panel is fixed in the middle of the support rail, the support rail is fixedly arranged on both sides of the top of the energy storage box through the support frame, first and second sliding photovoltaic panels are arranged on both sides of the intermediate photovoltaic panel, the first and second sliding photovoltaic panels are located below the intermediate photovoltaic panel, guide grooves for supporting and guiding the first and second sliding photovoltaic panels are arranged on the support rail, the first and second sliding photovoltaic panels are connected with the folding and unfolding structure, and a cleaning structure for cleaning the surface of the intermediate photovoltaic panel is arranged on the support rail.

[0009] Preferably, the folding and unfolding structure comprises a worm, the worm is rotationally connected with the top of the energy storage box, one end of the worm is provided with a motor for driving the worm to rotate, an inclined transmission shaft is arranged above the energy storage box, the transmission shaft is rotationally connected with a support fixedly arranged on the energy storage box, and a worm wheel meshing with the worm is arranged on the transmission shaft.

[0010] The transmission wheel fixedly arranged on the transmission shaft is in transmission connection with the transmission wheel fixedly arranged on the first rotating shaft through the first synchronous belt, the first rotating shaft is rotationally connected with the support, a first central gear is fixedly arranged on the first rotating shaft, and the first central gear is meshed with a first upper transmission rack fixedly arranged on the upper portion of the first sliding photovoltaic panel and a second upper transmission rack fixedly arranged on the upper portion of the second sliding photovoltaic panel.

[0011] Another transmission wheel fixedly arranged on the transmission shaft is in transmission connection with the transmission wheel fixedly arranged on the second rotating shaft through the second synchronous belt, the second rotating shaft is rotationally connected with the support frame, a second central gear is fixedly arranged on the second rotating shaft, and the second central gear is meshed with a first lower transmission rack fixedly arranged on the lower portion of the first sliding photovoltaic panel and a second lower transmission rack fixedly arranged on the lower portion of the second sliding photovoltaic panel.

[0012] The first and second sliding photovoltaic panels are driven to slide in the support rail through the first central gear, the first and second upper transmission racks and the second central gear, the first and second lower transmission racks, so that the folding and unfolding of the photovoltaic unit are realized.

[0013] Preferably, the cleaning structure includes a bidirectional screw rod, which is located at both ends of the middle photovoltaic panel and is arranged on the support rail, and the bidirectional screw rod is rotatably connected to the support rail; two slides are symmetrically arranged between the two bidirectional screw rods, and the two slides are respectively located at both ends of the bidirectional screw rod and mesh with the bidirectional screw rod for transmission, and a cleaning brush for cleaning the middle photovoltaic panel is provided at the bottom of the slide; the two bidirectional screw rods are respectively connected to the first upper transmission rack and the second lower transmission rack through the rotating structure; cleaning blocks for cleaning the surfaces of the first sliding photovoltaic panel and the second sliding photovoltaic panel are respectively fixed at the left and right ends of the middle photovoltaic panel.

[0014] Preferably, the rotating structure includes a third rotating shaft, which is rotatably connected to the support rail, and a transmission gear is fixedly provided at the bottom end of the third rotating shaft. The transmission gear of the third rotating shaft located at the top of the support rail is meshed with the first transmission rack fixedly provided on the first upper transmission rack, and the transmission gear of the third rotating shaft located at the bottom of the support rail is meshed with the second transmission rack fixedly provided on the second lower transmission rack. A first bevel gear is fixedly provided at the top end of the third rotating shaft, and the first bevel gear is meshed with the second bevel gear fixedly provided on the bidirectional screw rod.

[0015] Preferably, the wind power generation unit includes a support shaft, the top end of the support shaft is provided with rotating blades, the bottom end of the support shaft is provided with a center shaft, the center shaft is rotatably connected to the top end of the transmission box, the top end of the center shaft is located inside the support shaft and is slidingly connected to the support shaft, a limit platform is provided on the inner wall of the support shaft along the axial direction of the support shaft, a limit groove adapted to the limit platform is provided on the outer wall of the center shaft, the limit platform is inserted into the limit groove so that the support shaft drives the center shaft to rotate synchronously; a generator is provided at the bottom end of the center shaft, and the generator is located inside the box body of the energy storage box; the worm drives the support shaft to move up and down through the lifting structure.

[0016] Preferably, the lifting structure includes a fourth rotating shaft, the fourth rotating shaft is rotatably connected to the box body, a transmission wheel fixedly arranged on the fourth rotating shaft is transmission-connected to the transmission wheel fixedly arranged on the worm gear through a third synchronous belt, and a first gear is fixedly arranged on the fourth rotating shaft; a lifting seat is rotatably provided on the outside of the support shaft through a bearing, a fixing sleeve is provided on the outside of the lifting seat, the fixing sleeve is fixed on the shell body, a boss with a limiting effect on the lifting seat is provided on the inner wall of the fixing sleeve, so that the lifting seat can only slide axially along the fixing sleeve and cannot rotate relative to it, a sliding rack meshing with the first gear is provided at the bottom of the lifting seat, and a first avoidance hole is provided on the fixing sleeve for the first gear to pass through the fixing sleeve and mesh with the sliding rack.

[0017] Preferably, the heat dissipation structure includes two sliding frames arranged on the top of the box body, the two sliding frames are fixedly connected by a connecting plate, and a guide rail that guides the horizontal sliding of the sliding frame is fixedly arranged on the bottom of the box body, and the sliding frame is connected to the central axis through a transmission structure, and the central axis drives the sliding frame to slide back and forth horizontally along the guide rail through the transmission structure; a plurality of fifth rotating shafts are rotatably arranged on the sliding frame, a heat dissipation fan is fixedly arranged on the bottom end of the fifth rotating shaft, a second gear is fixedly arranged on the top end of the fifth rotating shaft, and a fixed rack meshing with the second gear is fixedly arranged on the top of the box body.

[0018] Preferably, the transmission structure includes an eccentric rod arranged at the lower part of the central shaft, a transmission rod is hinged on the eccentric rod, and an end of the transmission rod is hinged to the middle part of the sliding frame.

[0019] The power generation and energy storage method based on the above-mentioned micro photovoltaic power generation and energy storage device includes the following steps:

[0020] S1. Start the motor, the motor drives the worm to rotate, the worm drives the transmission shaft to rotate through the worm gear, the transmission shaft drives the first rotating shaft and the second rotating shaft to rotate respectively through the first synchronous belt and the second synchronous belt, the first rotating shaft drives the first sliding photovoltaic panel and the second sliding photovoltaic panel to slide in the support rail through the first central gear, the first upper transmission rack, and the second upper transmission rack, the second rotating shaft drives the first sliding photovoltaic panel and the second sliding photovoltaic panel to slide in the support rail through the second central gear, the first lower transmission rack, and the second lower transmission rack, the first sliding photovoltaic panel and the second sliding photovoltaic panel are deployed from below the middle photovoltaic panel to generate photovoltaic power, and the electrical energy is stored in the battery in the box;

[0021] S2, when the first upper transmission rack slides, the third rotating shaft above the support rail is driven to rotate through the first transmission rack and the transmission gear above the support rail; when the second lower transmission rack slides, the third rotating shaft below the support rail is driven to rotate through the second transmission rack and the transmission gear below the support rail; the third rotating shaft above and below the support rail respectively drives the bidirectional screw rods at the top and bottom of the support rail to rotate through the first bevel gear arranged thereon and the second bevel gear arranged on the bidirectional screw rod, and the bidirectional screw rod drives the cleaning brush to slide above the middle photovoltaic panel through the sliding seat to clean the middle photovoltaic panel; during the sliding process of the first sliding photovoltaic panel and the second sliding photovoltaic panel, the cleaning blocks arranged at the left and right ends of the middle photovoltaic panel respectively clean the first sliding photovoltaic panel and the second sliding photovoltaic panel;

[0022] S3, when the first sliding photovoltaic panel and the second sliding photovoltaic panel are unfolded, the worm drives the fourth rotating shaft to rotate through the transmission wheel and the third synchronous belt, the fourth rotating shaft drives the first gear to rotate, the first gear drives the lifting seat to slide upwards along the fixed sleeve through the sliding rack, the lifting seat drives the support shaft to slide upwards synchronously through the bearing, the support shaft drives the rotating blade to rise, and power generation is carried out; the rotating blade drives the support shaft to rotate, the support shaft drives the central shaft to rotate, and the central shaft drives the generator to generate power; the electric energy is stored in the storage battery in the box body;

[0023] S4, the central shaft drives the sliding frame to reciprocate through the eccentric rod and the transmission rod, the sliding frame drives the fifth rotating shaft to slide synchronously, the second gear on the fifth rotating shaft rotates under the action of the fixed rack, the second gear drives the fifth rotating shaft to rotate, and the fifth rotating shaft drives the cooling fan to rotate, thereby cooling the storage battery in the box body.

[0024] The micro photovoltaic power generation and energy storage device and the power generation and energy storage method have the following advantages and positive effects:

[0025] 1. The photovoltaic unit and the wind power generation unit are arranged on the top of the energy storage box, so that synchronous power generation of light energy and wind energy can be carried out, and the power generation efficiency is improved.

[0026] 2. The photovoltaic unit is provided with a folding and unfolding structure, so that the photovoltaic unit can be unfolded or folded according to needs, and the transportation of the photovoltaic unit is facilitated. When extreme weather is encountered, the photovoltaic unit is folded to protect the photovoltaic panel.

[0027] 3. The wind power generation unit is connected to the photovoltaic unit through the lifting mechanism, when the photovoltaic unit is unfolded, the support shaft of the wind power generation unit rises to drive the rotating blade to rise, so that the rotating blade can rotate in the air, and the power generation effect is improved. In extreme weather, the support shaft descends with the folding of the photovoltaic unit, the height of the rotating blade is reduced, the support shaft is protected, and the protection effect of the wind power generation unit is improved.

[0028] 4. The upper part of the intermediate photovoltaic panel is provided with a cleaning structure, which is connected to the folding and unfolding structure through a transmission structure. When the first sliding photovoltaic panel and the second sliding photovoltaic panel are unfolded, the intermediate photovoltaic panel, the first sliding photovoltaic panel and the second sliding photovoltaic panel are cleaned through the cleaning structure, which is conducive to improving the power generation efficiency of the photovoltaic unit.

[0029] 5. The heat dissipation structure is arranged in the box body and connected to the central shaft through a transmission structure. When the central shaft rotates to generate power, the heat dissipation structure is driven to work through the transmission structure, thereby cooling the storage battery and ensuring the normal work of the storage battery.

[0030] The technical solutions of the present application will be further described in detail through the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0032] Figure 2 is a structural schematic diagram of an internal structure of an embodiment of the present application;

[0033] Figure 3 is a structural schematic diagram of a front view of an embodiment of the present application;

[0034] Figure 4 is a structural schematic diagram of a cross section of an embodiment of the present application;

[0035] Figure 5 is a structural schematic diagram of a photovoltaic unit of an embodiment of the present application;

[0036] Figure 6 is a structural schematic diagram of a partial structure of a photovoltaic unit of an embodiment of the present application;

[0037] Figure 7 is an enlarged view of Figure 4 A;

[0038] Figure 8 is a structural schematic diagram of a heat dissipation structure of an embodiment of the present application;

[0039] Figure 9 is an enlarged view of Figure 8 B;

[0040] Figure 10 is an enlarged view of Figure 8 C.

[0041] REFERENCE NUMERALS

[0042] 1, photovoltaic unit; 11, support rail; 12, support frame; 13, intermediate photovoltaic panel; 14, first sliding photovoltaic panel; 15, second sliding photovoltaic panel; 16, worm; 17, electric motor; 18, transmission shaft; 19, worm wheel; 110, first synchronous belt; 111, first rotating shaft; 112, support; 113, first central gear; 114, first upper transmission rack; 115, second upper transmission rack; 116, second synchronous belt; 117, second rotating shaft; 118, second central gear; 119, first lower transmission rack; 120, second lower transmission rack; 121, first transmission rack; 122, second transmission rack; 123, transmission gear; 124, third rotating shaft; 125, first bevel gear; 126, bidirectional screw; 127, second bevel gear; 128, sliding seat; 129, cleaning brush;

[0043] 2, wind power generation unit; 21, fixed sleeve; 22, support shaft; 23, rotating blade; 24, lifting seat; 25, sliding rack; 26, fourth rotating shaft; 27, first gear; 28, first avoiding hole; 29, third synchronous belt; 210, central shaft; 211, support plate; 212, second avoiding hole; 213, eccentric rod; 214, transmission rod; 215, generator;

[0044] 3, energy storage box; 31, box body; 32, heat dissipation hole; 33, mounting plate; 34, storage battery; 35, sliding frame; 36, connecting plate; 37, guide rail; 38, fixed rack; 39, heat dissipation fan; 310, fifth rotating shaft; 311, second gear. DETAILED DESCRIPTION

[0045] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "provided", "mounted", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. If there is any inconsistency, the meaning described in the specification or the meaning derived from the content described in the specification shall prevail. In addition, the terms used herein are only for the purpose of describing the embodiments of the present application, and are not intended to limit the present application.

[0047] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0048] As Figure 1 , Figure 2 , Figure 3 , Figure 4As shown in the figure, a miniature photovoltaic power generation energy storage device includes an energy storage box 3, which includes a box body 31 fixed on the base on the ground. The inside of the box body 31 is fixedly provided with a mounting plate 33, and the mounting plate 33 is provided with a storage battery 34 for energy storage. One side of the box body 31 is provided with a box door for closing the box body 31, and the side wall of the box body 31 is provided with a heat dissipation hole 32 for heat dissipation. The inside of the box body 31 can also be provided with an inverter to facilitate the supply of the electrical energy stored in the storage battery 34 to external electrical equipment.

[0049] The top of the energy storage box 3 is provided with a photovoltaic unit 1, and the top of the energy storage box 3 is provided with a wind power generation unit 2 between the photovoltaic units 1. The photovoltaic unit 1 includes an intermediate photovoltaic panel 13 fixed in the middle of the support rail 11. The support rail 11 is fixedly provided on the top of the box body 31 by the inclined support frame 12; the two sides of the intermediate photovoltaic panel 13 are respectively provided with a first sliding photovoltaic panel 14 and a second sliding photovoltaic panel 15, and the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 are both located below the intermediate photovoltaic panel 13. The support rail 11 is provided with a guide groove for supporting and guiding the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15.

[0050] As shown in the figure, Figure 5 , Figure 6 The top of the box body 31 is provided with a folding and unfolding structure for driving the photovoltaic unit 1 to fold and unfold, and the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 are connected with the folding and unfolding structure. The folding and unfolding structure includes a worm 16 rotatably connected with the top of the box body 31 through a bearing seat. One end of the worm 16 is provided with a motor 17 for driving the worm 16 to rotate. The top of the box body 31 is provided with an inclined transmission shaft 18, and the transmission shaft 18 is vertically arranged with the intermediate photovoltaic panel 13. The transmission shaft 18 is rotatably connected with the support 112 fixedly arranged on the box body 31 through a bearing. The transmission shaft 18 is fixedly provided with a worm wheel 19 engaged with the worm 16, and the worm 16 drives the transmission shaft 18 to rotate through the worm wheel 19.

[0051] The transmission wheel fixed on the transmission shaft 18 is connected to the transmission wheel fixed on the first rotating shaft 111 via a first synchronous belt 110. The first rotating shaft 111 is rotatably connected to the bracket 112 via a bearing. A first central gear 113 is fixed on the first rotating shaft 111. The first central gear 113 meshes with a first upper transmission rack 114 fixed on the upper portion of the first sliding photovoltaic panel 14 and a second upper transmission rack 115 fixed on the upper portion of the second sliding photovoltaic panel 15. The first central gear 113 is located between the first upper transmission rack 114 and the second upper transmission rack 115. The transmission shaft 18 drives the first rotating shaft 111 to rotate via the first synchronous belt 110 and the transmission wheel. The first rotating shaft 111 drives the first central gear 113 to rotate. The first central gear 113 drives the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 to slide relative to each other via the first upper transmission rack 114 and the second upper transmission rack 115.

[0052] Another transmission wheel fixed on the transmission shaft 18 is connected to a transmission wheel fixed on the second rotating shaft 117 via a second synchronous belt 116. The second rotating shaft 117 is rotatably connected to the support frame 12 via a bearing. A second central gear 118 is fixed to the second rotating shaft 117. The second central gear 118 meshes with both a first lower transmission rack 119 fixed to the lower portion of the first sliding photovoltaic panel 14 and a second lower transmission rack 120 fixed to the lower portion of the second sliding photovoltaic panel 15. The second central gear 118 is located between the first lower transmission rack 119 and the second lower transmission rack 120. The transmission shaft 18 drives the second rotating shaft 117 to rotate via the second synchronous belt 116 and the transmission wheel. The second rotating shaft 117 drives the second central gear 118 to rotate. The second central gear 118 drives the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 to slide relative to each other via the first lower transmission rack 119 and the second lower transmission rack 120. The first upper transmission rack 114 and the first lower transmission rack 119 on the first sliding photovoltaic panel 14 are respectively located above the first center gear 113 and the second center gear 118, and the second upper transmission rack 115 and the second lower transmission rack 120 on the second sliding photovoltaic panel 15 are respectively located below the first center gear 113 and the second center gear 118, so that the upper and lower ends of the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 maintain synchronous sliding, thereby improving the stability of sliding.

[0053] The first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 are driven to slide in the support rail 11 by the first central gear 113, the first upper transmission rack 114, the second upper transmission rack 115 and the second central gear 118, the first lower transmission rack 119 and the second lower transmission rack 120 to realize the folding and unfolding of the photovoltaic unit 1.

[0054] The support rail 11 is provided with a cleaning structure for cleaning the surface of the middle photovoltaic panel 13. The cleaning structure includes a bidirectional screw 126, which is located at both ends of the middle photovoltaic panel 13 and is rotatably mounted on the support rail 11 via a bearing seat. Two slides 128 are symmetrically arranged between the two bidirectional screws 126. The two slides 128 are located at both ends of the bidirectional screw 126 and mesh with the bidirectional screw 126 for transmission. The rotation of the bidirectional screw 126 can drive the two slides to slide relative to each other. A cleaning brush 129 is fixed to the bottom of the slide 128 for cleaning the middle photovoltaic panel 13. Cleaning blocks for cleaning the surfaces of the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 are respectively fixed to the left and right ends of the middle photovoltaic panel 13. When the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 slide on the support rail 11, the cleaning blocks clean the upper surfaces of the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15.

[0055] The two bidirectional screw rods 126 are respectively connected to the first upper transmission rack 114 and the second lower transmission rack 120 through a rotating structure. The rotating structure includes a third rotating shaft 124, which is rotationally connected to the support rail 11 via a bearing seat. A transmission gear 123 is fixedly installed at the bottom end of the third rotating shaft 124. The transmission gear 123 of the third rotating shaft 124 located at the top of the support rail 11 meshes with the first transmission rack 121 fixedly installed on the first upper transmission rack 114. The transmission gear 123 of the third rotating shaft 124 located at the bottom of the support rail 11 meshes with the second transmission rack 122 fixedly installed on the second lower transmission rack 120. When the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 slide, the transmission gear 123 is driven to rotate by the first upper transmission rack 114 and the second lower transmission rack 120, respectively. A first bevel gear 125 is fixedly mounted on the top of the third rotating shaft 124. The first bevel gear 125 meshes with a second bevel gear 127 fixed to a bidirectional screw 126. The third rotating shaft 124 drives the bidirectional screw 126 to rotate via the first and second bevel gears 125, 127. This in turn drives the cleaning brush 129 via the slide 128 to clean the middle photovoltaic panel 13.

[0056] The wind power generation unit 2 includes a support shaft 22, with rotating blades 23 fixed to its top. Under the influence of wind, the rotating blades 23 drive the support shaft 22 to rotate. A central shaft 210 is mounted at the bottom end of the support shaft 22, and a support plate 211 is mounted at the top end of the housing 31. The central shaft 210 and the support plate 211 are rotatably connected via a bearing. The top end of the central shaft 210 is located within the support shaft 22 and is slidably connected to the support shaft 22. A stopper is fixedly mounted on the inner wall of the support shaft 22 along its axial direction. A stopper slot is provided on the outer wall of the central shaft 210, which is compatible with the stopper. Inserting the stopper into the stopper slot allows the support shaft 22 to rotate synchronously with the central shaft 210. A generator 215 is mounted at the bottom end of the central shaft 210, located within the housing 31 of the energy storage tank 3. The rotation of the central shaft 210 drives the generator 215 to generate electricity.

[0057] like Figure 7 As shown, the worm 16 drives the support shaft 22 up and down through the lifting structure. The lifting structure includes a fourth rotating shaft 26, which is rotatably connected to the housing 31 via a bearing seat. A transmission wheel fixed to the fourth rotating shaft 26 is connected to a transmission wheel fixed to the worm 16 via a third synchronous belt 29. The worm 16 drives the fourth rotating shaft 26 for rotation via the transmission wheel and the third synchronous belt 29. A first gear 27 is fixed to the fourth rotating shaft 26. A lifting seat 24 is rotatably mounted on the exterior of the support shaft 22 via a bearing, ensuring that the lifting seat 24 and the support shaft 22 can only rotate relative to each other and cannot slide relative to each other. A fixed sleeve 21 is mounted on the exterior of the lifting seat 24. The fixed sleeve 21 is fixed to the housing. A boss is provided on the inner wall of the fixed sleeve 21 along the axial direction of the fixed sleeve 21 to limit the lifting seat 24, ensuring that the lifting seat 24 can only slide along the axial direction of the fixed sleeve 21 and cannot rotate relative to the support shaft 22. A sliding rack 25 meshing with the first gear 27 is fixedly provided at the bottom of the lifting seat 24, and a second avoidance hole 212 is provided on the support plate 211 for the sliding rack 25 to pass through. A first avoidance hole 28 is provided on the fixing sleeve 21 for the first gear 27 to pass through the fixing sleeve 21 and mesh with the sliding rack 25.

[0058] like Figure 8 、 Figure 9 、 Figure 10As shown, the inside of the energy storage box 3 is provided with a heat dissipation structure, which is connected with the central shaft 210 through a transmission structure. The heat dissipation structure includes two sliding frames 35 arranged on the top of the box body 31, which are fixedly connected through a connecting plate 36. The bottom of the box body 31 is fixedly provided with guide rails 37 for guiding the horizontal sliding of the sliding frames 35. The sliding frames 35 are connected with the central shaft 210 through a transmission structure, and the central shaft 210 drives the sliding frames 35 to reciprocatingly slide horizontally along the guide rails 37. A plurality of fifth rotating shafts 310 are rotatably arranged on the sliding frames 35 through bearings, and the bottom ends of the fifth rotating shafts 310 are fixedly provided with heat dissipation fans 39. The top ends of the fifth rotating shafts 310 are fixedly provided with second gears 311, and the top of the box body 31 is fixedly provided with a fixed rack 38 engaged with the second gears 311. When the sliding frames 35 slide, the fifth rotating shafts 310 slide, and the second gears 311 on the second rotating shafts 117 rotate under the action of the fixed rack 38, thereby driving the heat dissipation fans 39 to rotate and cooling the storage batteries 34 in the box body 31.

[0059] As shown in the figure, Figure 9 The transmission structure includes an eccentric rod 213 fixedly arranged at the lower part of the central shaft 210, and a transmission rod 214 hinged to the eccentric rod 213, and the end of the transmission rod 214 is hinged to the middle part of the sliding frame 35. The rotation of the central shaft 210 is converted into the reciprocating sliding of the sliding frame 35 through the eccentric rod 213 and the transmission rod 214.

[0060] Based on the above-mentioned micro photovoltaic power generation and energy storage method, the following steps are included:

[0061] S1, start the motor 17, the motor 17 drives the worm 16 to rotate, the worm 16 drives the transmission shaft 18 to rotate through the worm gear 19, the transmission shaft 18 drives the first rotating shaft 111 and the second rotating shaft 117 to rotate through the first synchronous belt 110 and the second synchronous belt 116 respectively, the first rotating shaft 111 drives the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 to slide in the support rail 11 through the first central gear 113, the first upper transmission rack 114 and the second upper transmission rack 115. The second rotating shaft 117 drives the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 to slide in the support rail 11 through the second central gear 118, the first lower transmission rack 119 and the second lower transmission rack 120. The first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 are unfolded from below the middle photovoltaic panel 13 to generate photovoltaic power, and the electrical energy is stored in the storage battery 34 in the box body 31.

[0062] S2, when the first upper transmission rack 114 slides, the third rotating shaft 124 above the support rail 11 is driven to rotate through the first transmission rack 121 and the transmission gear 123 above the support rail 11; when the second lower transmission rack 120 slides, the third rotating shaft 124 below the support rail 11 is driven to rotate through the second transmission rack 122 and the transmission gear 123 below the support rail 11; the third rotating shaft 124 above and below the support rail 11 drives the bidirectional screw rod 126 at the top of the support rail 11 and the bottom of the support rail 11 to rotate through the first bevel gear 125 arranged thereon and the second bevel gear 127 arranged on the bidirectional screw rod 126. The bidirectional screw rod 126 drives the cleaning brush 129 to slide above the middle photovoltaic panel 13 through the sliding seat 128, and the middle photovoltaic panel 13 is cleaned. The cleaning blocks arranged at the left and right ends of the middle photovoltaic panel 13 clean the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 during the sliding process.

[0063] S3, when the first sliding photovoltaic panel 14 and the second sliding photovoltaic panel 15 are unfolded, the fourth rotating shaft 26 is driven to rotate through the transmission wheel and the third synchronous belt 29, the fourth rotating shaft 26 drives the first gear 27 to rotate, the first gear 27 drives the lifting seat 24 to slide upwards along the fixed sleeve 21 through the sliding rack 25, the lifting seat 24 drives the support shaft 22 to slide upwards synchronously through the bearing, the support shaft 22 drives the rotating blade 23 to rise, and power generation is performed. The rotating blade 23 drives the support shaft 22 to rotate, the support shaft 22 drives the central shaft 210 to rotate, the central shaft 210 drives the generator 215 to generate power, and the electric energy is stored in the battery 34 in the box body 31.

[0064] S4, the central shaft 210 drives the sliding frame 35 to reciprocate through the eccentric rod 213 and the transmission rod 214, the fifth rotating shaft 310 is driven to slide synchronously by the sliding frame 35, the second gear 311 on the fifth rotating shaft 310 rotates under the action of the fixed rack 38, the second gear 311 drives the fifth rotating shaft 310 to rotate, and the fifth rotating shaft 310 drives the cooling fan 39 to rotate, and the battery 34 in the box body 31 is cooled.

[0065] Therefore, the micro photovoltaic power generation energy storage device and the power generation energy storage method can solve the problems of poor protection effect of the existing power generation energy storage device in extreme weather and poor heat dissipation effect of the energy storage box, and can realize automatic cleaning of the photovoltaic unit and convenient use.

[0066] It should be pointed out finally that the above examples are only used to illustrate the technical solutions of the present application but not to limit it, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can still be modified or replaced equivalently, and these modifications or equivalent replacements should not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A micro photovoltaic power generation and energy storage device, characterized by: The energy storage box comprises an energy storage box, photovoltaic units are arranged on both sides of the top of the energy storage box, and a wind power generation unit is arranged on the top of the energy storage box, and the wind power generation unit is located between the photovoltaic units; a folding structure is arranged on the top of the energy storage box to drive the photovoltaic units to fold and unfold, and the folding structure drives the wind power generation unit to rise and fall through the lifting structure; a heat dissipation structure is arranged inside the energy storage box, and the heat dissipation structure is connected to the wind power generation unit through a transmission structure, and the wind power generation unit drives the heat dissipation structure to move to dissipate heat from the battery inside the energy storage box; The photovoltaic unit includes a middle photovoltaic panel, which is fixed to the middle part of the support rail. The support rail is fixedly arranged on both sides of the top of the energy storage box by a support frame. A first sliding photovoltaic panel and a second sliding photovoltaic panel are respectively arranged on both sides of the middle photovoltaic panel. The first sliding photovoltaic panel and the second sliding photovoltaic panel are both located below the middle photovoltaic panel. A guide groove is provided on the support rail for supporting and guiding the first sliding photovoltaic panel and the second sliding photovoltaic panel. The first sliding photovoltaic panel and the second sliding photovoltaic panel are connected to the folding structure. A cleaning structure for cleaning the surface of the middle photovoltaic panel is provided on the support rail. The folding structure includes a worm, which is rotatably connected to the top of the energy storage box. One end of the worm is provided with a motor that drives the worm to rotate. An inclined transmission shaft is provided above the energy storage box, which is rotatably connected to a bracket fixed to the energy storage box. A worm wheel that meshes with the worm is provided on the transmission shaft. A transmission wheel fixedly provided on the transmission shaft is transmission-connected to a transmission wheel fixedly provided on the first rotating shaft via a first synchronous belt. The first rotating shaft is rotationally connected to the bracket. A first central gear is fixedly provided on the first rotating shaft. The first central gear is meshed with a first upper transmission rack fixedly provided on the upper portion of the first sliding photovoltaic panel and a second upper transmission rack fixedly provided on the upper portion of the second sliding photovoltaic panel. Another transmission wheel fixedly provided on the transmission shaft is transmission-connected to the transmission wheel fixedly provided on the second rotating shaft through a second synchronous belt. The second rotating shaft is rotationally connected to the support frame. A second central gear is fixedly provided on the second rotating shaft. The second central gear is meshed with a first lower transmission rack fixedly provided on the lower part of the first sliding photovoltaic panel and a second lower transmission rack fixedly provided on the lower part of the second sliding photovoltaic panel. The first sliding photovoltaic panel and the second sliding photovoltaic panel are driven to slide in the support rail by the first central gear, the first upper transmission rack, the second upper transmission rack and the second central gear, the first lower transmission rack and the second lower transmission rack to realize the folding and unfolding of the photovoltaic unit.

2. A micro photovoltaic power generation and energy storage device according to claim 1, characterized in that: The cleaning structure includes a bidirectional screw rod, which is located at both ends of the middle photovoltaic panel and is arranged on the support rail, and the bidirectional screw rod is rotatably connected to the support rail; two slides are symmetrically arranged between the two bidirectional screw rods, and the two slides are respectively located at both ends of the bidirectional screw rod and mesh with the bidirectional screw rod for transmission, and a cleaning brush for cleaning the middle photovoltaic panel is provided at the bottom of the slide; the two bidirectional screw rods are respectively connected to the first upper transmission rack and the second lower transmission rack through the rotating structure; cleaning blocks for cleaning the surfaces of the first sliding photovoltaic panel and the second sliding photovoltaic panel are respectively fixed at the left and right ends of the middle photovoltaic panel.

3. A micro photovoltaic power generation and energy storage device according to claim 2, characterized in that: The rotating structure includes a third rotating shaft, which is rotatably connected to the support rail. A transmission gear is fixedly provided at the bottom end of the third rotating shaft. The transmission gear of the third rotating shaft located at the top of the support rail is meshed with the first transmission rack fixedly provided on the first upper transmission rack. The transmission gear of the third rotating shaft located at the bottom of the support rail is meshed with the second transmission rack fixedly provided on the second lower transmission rack. A first bevel gear is fixedly provided at the top end of the third rotating shaft, and the first bevel gear is meshed with the second bevel gear fixedly provided on the bidirectional screw rod.

4. A micro photovoltaic power generation and energy storage device according to claim 3, characterized in that: The wind power generation unit includes a support shaft, a top end of the support shaft is provided with a rotating blade, a bottom end of the support shaft is provided with a center shaft, the center shaft is rotatably connected to the top end of the transmission box, the top end of the center shaft is located inside the support shaft and is slidably connected to the support shaft, a limit platform is provided on the inner wall of the support shaft along the axial direction of the support shaft, a limit groove adapted to the limit platform is provided on the outer wall of the center shaft, the limit platform is inserted into the limit groove so that the support shaft drives the center shaft to rotate synchronously; a generator is provided at the bottom end of the center shaft, and the generator is located inside the box body of the energy storage box; the worm drives the support shaft to move up and down through the lifting structure.

5. A micro photovoltaic power generation and energy storage device according to claim 4, characterized in that: The lifting structure includes a fourth rotating shaft, which is rotatably connected to the box body, and a transmission wheel fixedly arranged on the fourth rotating shaft is transmission-connected to the transmission wheel fixedly arranged on the worm gear through a third synchronous belt, and the first gear is fixedly arranged on the fourth rotating shaft; a lifting seat is rotatably provided on the outside of the support shaft through a bearing, and a fixed sleeve is provided on the outside of the lifting seat, and the fixed sleeve is fixed on the shell body, and a boss with a limiting effect on the lifting seat is provided on the inner wall of the fixed sleeve, so that the lifting seat can only slide axially along the fixed sleeve and cannot rotate relative to it, and a sliding rack meshing with the first gear is provided at the bottom of the lifting seat, and a first avoidance hole is provided on the fixed sleeve so that the first gear passes through the fixed sleeve and meshes with the sliding rack.

6. A micro photovoltaic power generation and energy storage device according to claim 5, characterized in that: The heat dissipation structure includes two sliding frames arranged on the top of the box body, the two sliding frames are fixedly connected by a connecting plate, and a guide rail that guides the horizontal sliding of the sliding frame is fixedly arranged at the bottom of the box body. The sliding frame is connected to the central axis through a transmission structure, and the central axis drives the sliding frame to slide back and forth horizontally along the guide rail through the transmission structure; a plurality of fifth rotating shafts are rotatably arranged on the sliding frame, a heat dissipation fan is fixedly arranged at the bottom end of the fifth rotating shaft, a second gear is fixedly arranged at the top end of the fifth rotating shaft, and a fixed rack meshing with the second gear is fixedly arranged on the top of the box body.

7. A micro photovoltaic power generation and energy storage device according to claim 6, characterized in that: The transmission structure comprises an eccentric rod arranged at the lower part of the central shaft, a transmission rod is hinged on the eccentric rod, and an end of the transmission rod is hinged to the middle part of the sliding frame.

8. A method for power generation and energy storage based on the micro photovoltaic power generation and energy storage device according to claim 7, characterized in that: The following steps are involved: S1. Start the motor, the motor drives the worm to rotate, the worm drives the transmission shaft to rotate through the worm gear, the transmission shaft drives the first rotating shaft and the second rotating shaft to rotate respectively through the first synchronous belt and the second synchronous belt, the first rotating shaft drives the first sliding photovoltaic panel and the second sliding photovoltaic panel to slide in the support rail through the first central gear, the first upper transmission rack, and the second upper transmission rack, the second rotating shaft drives the first sliding photovoltaic panel and the second sliding photovoltaic panel to slide in the support rail through the second central gear, the first lower transmission rack, and the second lower transmission rack, the first sliding photovoltaic panel and the second sliding photovoltaic panel are deployed from below the middle photovoltaic panel to generate photovoltaic power, and the electrical energy is stored in the battery in the box; S2, when the first upper transmission rack slides, the third rotating shaft above the support rail is driven to rotate through the first transmission rack and the transmission gear above the support rail; when the second lower transmission rack slides, the third rotating shaft below the support rail is driven to rotate through the second transmission rack and the transmission gear below the support rail; the third rotating shaft above and below the support rail respectively drives the bidirectional screw rods at the top and bottom of the support rail to rotate through the first bevel gear arranged thereon and the second bevel gear arranged on the bidirectional screw rod, and the bidirectional screw rod drives the cleaning brush to slide above the middle photovoltaic panel through the sliding seat to clean the middle photovoltaic panel; during the sliding process of the first sliding photovoltaic panel and the second sliding photovoltaic panel, the cleaning blocks arranged at the left and right ends of the middle photovoltaic panel respectively clean the first sliding photovoltaic panel and the second sliding photovoltaic panel; S3. When the first and second sliding photovoltaic panels are unfolded, the worm drives the fourth rotating shaft to rotate through the transmission wheel and the third synchronous belt. The fourth rotating shaft drives the first gear to rotate. The first gear drives the lifting seat to slide upward along the fixed sleeve through the sliding rack. The lifting seat drives the support shaft to slide upward synchronously through the bearing. The support shaft drives the rotating blades to rise to generate electricity. The rotating blades drive the support shaft to rotate. The support shaft drives the central shaft to rotate. The central shaft drives the generator to generate electricity. The electrical energy is stored in the battery in the box. S4. The central shaft drives the sliding frame to slide back and forth through the eccentric rod and the transmission rod. The sliding frame drives the fifth rotating shaft to slide synchronously. The second gear on the fifth rotating shaft rotates under the action of the fixed rack. The second gear drives the fifth rotating shaft to rotate. The fifth rotating shaft drives the cooling fan to rotate to dissipate heat from the battery in the box.

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