Photovoltaic power generation energy storage device

Abstract

The utility model discloses a photovoltaic power generation and energy storage device, which comprises a plurality of photovoltaic power generation units and an energy storage electric cabinet, and is characterized in that each photovoltaic power generation unit comprises a photovoltaic assembly, a photovoltaic support assembly and a control electric box; the photovoltaic support assembly is rotatably provided with a light reflection assembly at one side or two sides of the photovoltaic cell panel, and the light reflection assembly can reflect the received light to the surface of the photovoltaic panel when the light reflection assembly is turned over towards the inner side of the upper surface of the photovoltaic panel; and the electric driving mechanism is assembled on the photovoltaic bracket assembly and is used for driving the light reflecting assembly to overturn towards the inner side or the outer side of the upper surface of the photovoltaic cell panel. By arranging the turnover type light reflection assembly on the side face of the photovoltaic cell panel, within a period of time just after the sun rises or before the sun falls down, the electric driving mechanism drives the light reflection assembly to turn over by a certain angle to receive light, and the received light is reflected to the upper surface of the photovoltaic cell panel, so that the illumination effect on the photovoltaic cell panel at the period of time is improved; and the power generation efficiency of the photovoltaic cell panel is correspondingly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a photovoltaic power generation and energy storage device. Background Art

[0002] Photovoltaic power generation mainly involves photovoltaic panels receiving sunlight and converting light energy into electrical energy for use by users or grid-connected devices. Existing photovoltaic panels generally adopt a fixed installation mode that cannot automatically adjust the angle of the panel. There are also rotating installation modes that automatically adjust the angle of the solar panel according to the sunlight. Among them, the solar panels in the fixed installation mode generally receive sunlight at an angle that is not ideal for a period of time after the sun rises and before it sets, which to a certain extent affects the power generation capacity. The rotating installation mode, although it has the function of automatically converting the illumination angle of the solar panel, is more complex in structure and has a higher investment cost. Based on this, further research can be done on the sunlight direction of the solar panel in the morning and evening. Utility Model Content

[0003] In response to the above technical problems, the purpose of the present invention is to provide a photovoltaic power generation and energy storage device that improves lighting conditions in the morning and evening.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] Photovoltaic power generation and energy storage device, including multiple photovoltaic power generation units and energy storage cabinets. The power generated by the multiple photovoltaic power generation units is transmitted to the energy storage cabinet for storage;

[0006] Each photovoltaic power generation unit includes photovoltaic components, photovoltaic support components, and control electrical boxes;

[0007] The photovoltaic module includes photovoltaic panels arranged in an inclined manner for receiving light;

[0008] The photovoltaic bracket assembly is connected to the photovoltaic assembly to form an inclined support for the photovoltaic panel;

[0009] The control box is installed under the photovoltaic bracket assembly. The control box is equipped with a photovoltaic controller and a first energy storage battery. The photovoltaic controller is electrically connected to the photovoltaic panel and the photovoltaic controller is electrically connected to the first energy storage battery.

[0010] The photovoltaic bracket assembly is rotated to set a light reflection assembly on one side or both sides of the photovoltaic panel. When the light reflection assembly is turned toward the inner side of the upper surface of the photovoltaic panel, it can reflect the received light onto the surface of the photovoltaic panel;

[0011] and an electric drive mechanism mounted on the photovoltaic support assembly to drive the light reflecting assembly to flip toward the inner side or the outer side of the upper surface of the photovoltaic panel;

[0012] The electric drive mechanism is electrically connected to the first energy storage battery.

[0013] As a further embodiment, the photovoltaic support assembly includes a vertically arranged back support, a horizontally arranged bottom support, and an obliquely arranged side support;

[0014] One end of the bottom bracket is connected to the lower part of the back bracket, the lower end of the side bracket is connected to the other end of the bottom bracket, and the upper end of the side bracket is connected to the upper part of the back bracket;

[0015] A plurality of supporting legs are fixedly arranged below the bottom bracket;

[0016] The control electric box is fixedly arranged below the bottom bracket.

[0017] As a further embodiment, the light reflecting assembly includes a reflecting frame, a reflecting unit;

[0018] One side of the reflective frame is rotatably arranged on the outside of the side bracket through a rotating assembly; the reflective frame is a rectangular frame for embedding at least the four peripheral edges of the reflective unit, and the reflective unit includes at least a first reflector with the same inclination angle as the upper surface of the photovoltaic panel.

[0019] As a further embodiment, the reflective unit further includes a second reflector arranged side by side with the first reflector in the reflective frame; the reflective surface of the first reflector and the reflective surface of the second reflector form an obtuse angle.

[0020] As a further embodiment, a driving bracket is provided between the back bracket and the bottom bracket and is inclined at the same angle as the photovoltaic panel;

[0021] One end of the driving bracket is fixedly connected to the middle of the back bracket, and the other end is fixedly connected to the middle of the bottom bracket;

[0022] The electric drive mechanism is arranged in the middle of the drive bracket; the electric drive mechanism is an electric telescopic rod, the body of the electric telescopic rod is hinged to the middle of the drive bracket, and the telescopic end of the electric telescopic rod is hinged to the back of the reflection frame.

[0023] As a further embodiment, a long connecting portion that is higher than the back of the reflecting frame is fixedly provided on the back of the reflecting frame, and the long connecting portion extends from the upper end of the back of the reflecting frame to the lower end of the back of the reflecting frame; the telescopic end of the electric telescopic rod is hinged to the long connecting portion.

[0024] As a further embodiment, the energy storage cabinet is provided with a plurality of second energy storage batteries arranged in an upper and lower interval, and the storage capacity of the second energy storage batteries is greater than the storage capacity of the first energy storage batteries;

[0025] A water pump is provided on one side of the energy storage cabinet, and the inlet end of the water pump is connected to a water intake pipe;

[0026] A cooling pipe is provided in the energy storage cabinet. The inlet and outlet ends of the cooling pipe are both outside the energy storage cabinet. The output end of the water pump is connected to the inlet end of the cooling pipe. The cooling pipe passes through the gap between the upper and lower adjacent second energy storage batteries. The cooling pipe between the second energy storage batteries is equipped with a heat sink. The upper and lower ends of the heat sink are at the same distance from the upper and lower second energy storage batteries.

[0027] Compared with the existing technology, the beneficial effect of the present invention is: by arranging a flip-type light reflecting component on the side of the photovoltaic panel, during a period of time just after the sun rises / before setting, the light reflecting component is driven by an electric drive mechanism to flip a certain angle to receive light and reflect the received light to the upper surface of the photovoltaic panel, thereby improving the lighting effect on the photovoltaic panel during this period and correspondingly improving the power generation efficiency of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the photovoltaic power generation unit in the present utility model;

[0029] Figure 2 for Figure 1 A side structural diagram of

[0030] Figure 3 for Figure 1 A magnified schematic diagram of part A in FIG;

[0031] Figure 4 This is a schematic diagram of the back structure of the light reflection component in the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the connecting card in the utility model;

[0033] Figure 6 This is a schematic diagram of the internal structure of the energy storage cabinet in the present utility model;

[0034] In the figure: 10. Photovoltaic power generation unit, 11. Energy storage cabinet, 12. Photovoltaic module, 13. Photovoltaic bracket assembly, 14. Control box, 15. Photovoltaic panel, 16. Assembly shaft, 17. Light reflection assembly, 18. Electric drive mechanism, 19. Back bracket, 20. Bottom bracket, 21. Side bracket, 22. Support leg, 23. Reflection frame, 24. Support, 25. Rotating shaft, 26. First reflector, 27. Second reflector, 28. Drive bracket, 29. Long connecting part, 30. Connecting card plate, 31. Recess, 32. Card, 33. Second energy storage battery, 34. Water pump, 35. Cooling pipe, 36. Heat sink. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See Figure 1-6 As shown, the photovoltaic power generation and energy storage device includes multiple photovoltaic power generation units 10 and an energy storage cabinet 11. The multiple photovoltaic power generation units 10 receive light simultaneously to generate electricity, and the electricity generated by the multiple photovoltaic power generation units 10 is transmitted to the energy storage cabinet 11 for storage; the energy storage cabinet 11 can be connected to the power grid or used as an independent power supply station; the number of photovoltaic power generation units 10 corresponding to one energy storage cabinet 11 is set according to the energy storage capacity of the energy storage cabinet 11.

[0037] Each photovoltaic power generation unit 10 includes a photovoltaic assembly 12, a photovoltaic support assembly 13, and a control box 14. The photovoltaic assembly 12 includes a photovoltaic panel 15 arranged in an inclined manner for receiving light.

[0038] The photovoltaic bracket assembly 13 is connected to the photovoltaic assembly 12 to form an inclined support for the photovoltaic panel 15. Two upper and lower assembly shafts 16 are installed horizontally on the back of the photovoltaic panel 15. The two ends of the assembly shaft 16 are connected to the photovoltaic bracket assembly 13, thereby forming a support for the photovoltaic panel 15.

[0039] The control box 14 is installed below the photovoltaic bracket assembly 13 and below the photovoltaic panel 15. The photovoltaic panel 15 can shield the control box 14 to form a certain protective effect; the control box 14 is equipped with a photovoltaic controller and a first energy storage battery. The photovoltaic controller is electrically connected to the photovoltaic panel 15, and the photovoltaic controller is electrically connected to the first energy storage battery; the photovoltaic controller is used to transmit the electric energy generated by the photovoltaic panel 15 to the first energy storage battery for storage, and is also provided with a power meter for monitoring the power in the first energy storage battery. When the power meter detects that the power in the first energy storage battery is lower than the set value, the photovoltaic controller is used to charge the first energy storage battery. The photovoltaic controller is also connected to the second energy storage battery in the energy storage cabinet 11 to charge the second energy storage battery; when the power of the second energy storage battery reaches the set storage capacity, the photovoltaic controller switches to connect to the power grid and supplies power to the power grid.

[0040] Among them, the photovoltaic bracket assembly 13 is rotatably provided with a light reflecting assembly 17 on one side or both sides of the photovoltaic panel 15. When the light reflecting assembly 17 is flipped toward the inner side of the upper surface of the photovoltaic panel, the received light can be reflected to the surface of the photovoltaic panel; for example, when the sun has just risen / set, the lighting effect on the photovoltaic panel 15 is not ideal. At this time, the light reflecting assembly 17 can be flipped at a certain angle to receive light and reflect the received light to the upper surface of the photovoltaic panel 15, so as to improve the lighting effect on the photovoltaic panel 15 during this period.

[0041] An electric drive mechanism 18 is mounted on the photovoltaic support assembly 13 to drive the light reflector assembly 17 to tilt toward the inside or outside of the upper surface of the photovoltaic panel 15. The electric drive mechanism 18 is electrically connected to the first energy storage battery. In other words, the first energy storage battery provides power to the electric drive mechanism 18, eliminating the need for an additional power supply to the electric drive mechanism 18.

[0042] In some embodiments, the photovoltaic support assembly 13 includes a vertically arranged back support 19, a horizontally arranged bottom support 20, and an inclined side support 21; one end of the bottom support 20 is connected to the lower part of the back support 19, the lower end of the side support 21 is connected to the other end of the bottom support 20, and the upper end of the side support 21 is connected to the upper part of the back support 19. The side support 21, the back support 19, and the bottom support 20 form a right-angled triangle arrangement, so that the photovoltaic support assembly 13 has a stable support capacity; wherein, a plurality of support legs 22 are fixedly arranged under the bottom support 20 for supporting the entire photovoltaic support assembly 13, so that the photovoltaic support assembly 13 has a certain height from the device installation position; the control box 14 is fixedly arranged under the bottom support 20, and the control box 14 has a door lock to provide certain protection for the internal components of the control box 14.

[0043] In some embodiments, the light reflecting assembly 17 includes a reflecting frame 23 and a reflecting unit; one side of the reflecting frame 23 is rotatably set on the outside of the side bracket 21 through two rotating assemblies arranged up and down, and the rotating assembly includes an L-shaped support 24 bolted to the outside of the side bracket 21, and is fixedly set on the rotating shaft 25 above the support 24. A sleeve is fixedly installed on the outside of the reflecting frame 23, and the sleeve is sleeved on the rotating shaft 25 to form a rotation with the rotating shaft 25 as the center. In order to ensure stable and flexible rotation, the axis lines of the rotating shafts in the two rotating assemblies are arranged to overlap; the reflecting frame 23 is a rectangular frame for embedding at least the four peripheral edges of the reflecting unit, and the length of the rectangular frame is adapted to the length of the photovoltaic panel 15. The reflecting unit includes at least a first reflector 26 with an inclination angle the same as the upper surface of the photovoltaic panel. During use, the first reflector 26 is flipped so that the light received by the first reflector 26 can be reflected to the upper surface of the photovoltaic panel 15.

[0044] In some embodiments, the reflective unit further includes a second reflector 27 arranged side by side with the first reflector 26 within the reflective frame 23; the reflective surface of the first reflector 26 and the reflective surface of the second reflector 27 are arranged at an obtuse angle. The first reflector 26 and the second reflector 27 differ primarily in their arrangement angles; the reflectors employed are the same, such as reflective glass, reflective film, or other common light-reflecting objects. The angled arrangement of the first and second reflectors 26, 27 allows for better reflection of received light toward the top surface of the photovoltaic panel 15.

[0045] In some embodiments, a drive bracket 28 is disposed between the rear bracket 19 and the bottom bracket 20, tilted at the same angle as the photovoltaic panel. One end of the drive bracket 28 is bolted to the middle of the rear bracket 19, and the other end is bolted to the middle of the bottom bracket 20. An electric drive mechanism 18 is disposed in the middle of the drive bracket 28. The electric drive mechanism 18 is an electric telescopic rod, the main body of which is hinged to the middle of the drive bracket 28, and the telescopic end of the electric telescopic rod is hinged to the back of the reflector frame 23. When the electric telescopic rod is extended, it pushes the reflector frame 23 toward the upper surface of the photovoltaic panel 15, causing it to tilt upward. When the electric telescopic rod is retracted, it drives the reflector frame 23 toward the outside of the photovoltaic panel 15, causing it to tilt downward.

[0046] In some embodiments, a long connecting portion 29 that is higher than the back of the reflecting frame 23 is fixedly provided on the back of the reflecting frame 23, and the long connecting portion 29 extends from the upper end of the back of the reflecting frame 23 to the lower end of the back of the reflecting frame 23 to increase the overall strength of the reflecting frame 23; the telescopic end of the electric telescopic rod is hinged to the long connecting portion 29, reducing the chance of the electric telescopic rod contacting the back of the reflecting unit during extension and contraction, thereby providing a certain degree of protection for the reflecting unit.

[0047] In some embodiments, a connecting card plate 30 is also clamped on the long connecting part. The connecting card plate 30 includes a recess 31 that clamps the long connecting part 29, and clamping parts 32 on both sides of the recess 31. The clamping parts 32 are clamped into the edge of the back of the reflection frame 23. Of course, glue can also be used to form a fixed connection between the clamping part and the reflection frame 23, so as to further increase the overall strength of the reflection frame 23.

[0048] In some embodiments, the energy storage cabinet 11 is provided with a plurality of second energy storage batteries 33 arranged in an upper and lower interval arrangement for storing the electrical energy generated by the photovoltaic panel 15; the storage capacity of the second energy storage battery 33 is greater than the storage capacity of the first energy storage battery, and the first energy storage battery can provide power for the electric telescopic pole and the photovoltaic controller, so a larger storage capacity is not required.

[0049] In some embodiments, a water pump 34 is provided on one side of the energy storage cabinet 11, and the inlet end of the water pump 34 is connected to a water intake pipe, which can be connected to groundwater, and the water pump 34 extracts groundwater; a cooling pipe 35 is provided in the energy storage cabinet 11, and the inlet and outlet ends of the cooling pipe 35 are both outside the energy storage cabinet 11, the output end of the water pump 34 is connected to the inlet end of the cooling pipe 35, and the outlet end of the cooling pipe 35 is connected to the return water point of the groundwater, and the cooling pipe 35 passes through the gap between the upper and lower adjacent second energy storage batteries 33; a heat sink 36 is installed on the cooling pipe 35 between the second energy storage batteries 33, and the upper and lower distances of the heat sink 36 from the upper and lower second energy storage batteries 33 are the same, that is, the heat sink 36 at one position is the same distance from the bottom of the upper second energy storage battery 33 and the top of the lower second energy storage battery 33. The energy storage cabinet 11 is equipped with multiple hollowed-out placement plates spaced apart at intervals. The second energy storage battery 33 is placed on these hollowed-out placement plates. Heat sinks 36, the hollowed-out design of the placement plates, and the distance between the heat sink 36 and the second energy storage battery 33 minimize heat dissipation within the energy storage cabinet 11, maintaining a uniform temperature within the cabinet and ensuring stable energy storage. A temperature sensor can be installed within the energy storage cabinet 11. When the cabinet temperature exceeds a set value, a water pump 34 is activated to pump water for cooling. The water pump 34 can be powered by either the second energy storage battery 33 or the first energy storage battery.

[0050] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A photovoltaic power generation and energy storage device, comprising a plurality of photovoltaic power generation units and an energy storage cabinet, wherein the power generated by the plurality of photovoltaic power generation units is transmitted to the energy storage cabinet for storage, and is characterized in that: Each photovoltaic power generation unit includes photovoltaic components, photovoltaic support components, and control electrical boxes; The photovoltaic module includes photovoltaic panels arranged in an inclined manner for receiving light; The photovoltaic bracket assembly is connected to the photovoltaic assembly to form an inclined support for the photovoltaic panel; The control box is installed under the photovoltaic bracket assembly. The control box is equipped with a photovoltaic controller and a first energy storage battery. The photovoltaic controller is electrically connected to the photovoltaic panel and the photovoltaic controller is electrically connected to the first energy storage battery. The photovoltaic bracket assembly is rotated to set a light reflection assembly on one side or both sides of the photovoltaic panel. When the light reflection assembly is turned toward the inner side of the upper surface of the photovoltaic panel, it can reflect the received light onto the surface of the photovoltaic panel; and an electric drive mechanism mounted on the photovoltaic support assembly to drive the light reflecting assembly to flip toward the inner side or the outer side of the upper surface of the photovoltaic panel; The electric drive mechanism is electrically connected to the energy storage battery.

2. The photovoltaic power generation and energy storage device according to claim 1, characterized in that: The photovoltaic support assembly includes a vertically arranged back support, a horizontally arranged bottom support, and an inclinedly arranged side support; One end of the bottom bracket is connected to the lower part of the back bracket, the lower end of the side bracket is connected to the other end of the bottom bracket, and the upper end of the side bracket is connected to the upper part of the back bracket; A plurality of supporting legs are fixedly arranged below the bottom bracket; The control electric box is fixedly arranged below the bottom bracket.

3. The photovoltaic power generation and energy storage device according to claim 1, characterized in that: The light reflection assembly includes a reflection frame and a reflection unit; One side of the reflective frame is rotatably arranged on the outside of the side bracket through a rotating assembly; the reflective frame is a rectangular frame for embedding at least the four peripheral edges of the reflective unit, and the reflective unit includes at least a first reflector with the same inclination angle as the upper surface of the photovoltaic panel.

4. The photovoltaic power generation and energy storage device according to claim 1, characterized in that: The reflecting unit further includes a second reflector arranged side by side with the first reflector in the reflecting frame; a reflecting surface of the first reflector and a reflecting surface of the second reflector form an obtuse angle.

5. The photovoltaic power generation and energy storage device according to claim 1, characterized in that: A driving bracket is provided between the back bracket and the bottom bracket and is inclined at the same angle as the photovoltaic panel; One end of the driving bracket is fixedly connected to the middle of the back bracket, and the other end is fixedly connected to the middle of the bottom bracket; The electric drive mechanism is arranged in the middle of the drive bracket; the electric drive mechanism is an electric telescopic rod, the body of the electric telescopic rod is hinged to the middle of the drive bracket, and the telescopic end of the electric telescopic rod is hinged to the back of the reflection frame.

6. The photovoltaic power generation and energy storage device according to claim 1, characterized in that: A long connecting portion higher than the back of the reflective frame is fixedly provided on the back of the reflective frame, and the long connecting portion extends from the upper end of the back of the reflective frame to the lower end of the back of the reflective frame; the telescopic end of the electric telescopic rod is hinged with the long connecting portion.

7. The photovoltaic power generation and energy storage device according to claim 1, characterized in that: The energy storage cabinet is provided with a plurality of second energy storage batteries arranged in an upper and lower interval arrangement, and the storage capacity of the second energy storage batteries is greater than the storage capacity of the first energy storage batteries.

8. The photovoltaic power generation and energy storage device according to claim 7, characterized in that: A water pump is provided on one side of the energy storage cabinet, and the inlet end of the water pump is connected to a water intake pipe; A cooling pipe is provided in the energy storage cabinet. The inlet and outlet ends of the cooling pipe are both outside the energy storage cabinet. The output end of the water pump is connected to the inlet end of the cooling pipe. The cooling pipe passes through the gap between the upper and lower adjacent second energy storage batteries. The cooling pipe between the second energy storage batteries is equipped with a heat sink. The upper and lower ends of the heat sink are at the same distance from the upper and lower second energy storage batteries.

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