Optical energy storage micro-grid power station

Abstract

A light energy storage micro-grid power station disclosed by the present invention comprises a photovoltaic power generation panel, a power station body, a buoyancy device and a floating control switch, the photovoltaic power generation panel is fixed on the power station body, the power station body comprises a cabinet body, a control module, a first battery and a second battery, and the control module, the first battery and the second battery are arranged in the cabinet body. The photovoltaic power generation panel is used for charging the first battery and the second battery, the first battery and the second battery are both electrically connected with the control module, the control module is used for controlling the charging and power supply states of the first battery and the second battery, the first battery is used for supplying power to electric equipment, and the second battery is used for supplying power to the buoyancy device. The buoyancy device is used for enabling the light energy storage micro-grid power station to float on water, and the floating control switch is used for controlling connection and disconnection of electric connection between the second battery and the buoyancy device and is used for being closed when flood comes to enable the buoyancy device to be in a working state so as to enable the light energy storage micro-grid power station to float on water. The environment-friendly power generation and flood prevention functions are achieved.

Description

Technical Field

[0001] The present invention relates to the field of new energy technologies, and more specifically, to a photovoltaic energy storage microgrid power station. Background Art

[0002] In some harsh environments and flood-prone areas, power supply is often difficult. Even if there is power supply, after a flood, the power generation and transmission equipment are often severely damaged. Therefore, a power station with flood control function is needed. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention innovatively provides a photovoltaic energy storage microgrid power station. The solar power generation also has a flood prevention function. When a flood comes, it can float on the water surface, generate electricity in a green way, and reduce the maintenance and repair costs of power generation equipment.

[0004] In order to achieve the above technical objectives, the present invention discloses a photovoltaic energy storage microgrid power station, including a photovoltaic power generation panel, a power station body, a buoyancy device and a float switch.

[0005] The photovoltaic panels are fixed on the power station body.

[0006] The power station body includes a cabinet, a control module, a first battery and a second battery. The control module, the first battery and the second battery are arranged in the cabinet. The photovoltaic power generation panel is used to charge the first battery and the second battery. The first battery and the second battery are both electrically connected to the control module. The control module is used to control the charging and power supply status of the first battery and the second battery. The first battery is used to supply power to electrical equipment, and the second battery is used to supply power to the buoyancy device.

[0007] The buoyancy device is used to make the photovoltaic energy storage microgrid power station float on the water.

[0008] The float switch is used to control the on / off connection between the second battery and the buoyancy device, and is used to close when a flood comes to put the buoyancy device into a working state so that the photovoltaic energy storage microgrid power station floats on the water.

[0009] Furthermore, the buoyancy device includes an air cushion box, an air cushion, an air pump and a pressure switch, the air cushion box is fixed under the cabinet, the air cushion is arranged in the air cushion box, the air pump is used to inflate the air cushion, and the pressure switch is used to detect the air pressure in the air cushion or the air pressure in the air supply pipe connecting the air pump and the air cushion. The air pump, the pressure switch, the second battery and the float switch are connected in series, and the pressure switch is a normally closed switch. The pressure switch is disconnected after the air cushion is full, and the air cushion extends out of the air cushion box after it is full.

[0010] Furthermore, two opposite sides of the air cushion box are provided with openings.

[0011] Furthermore, the side portions of the air cushion box provided with the opening are hinged with sealing plates, and the sealing plates and the air cushion box are magnetically attracted to close the openings, and after the air cushion is inflated, the sealing plates are pushed open to release the magnetic attraction.

[0012] Furthermore, the float switch includes a housing, a float box, a rotating arm, a pull rope, a reset knob, a tension spring, a rotating block, a fixed block, a first conductive block and a second conductive block.

[0013] The bottom of the shell is provided with an opening, and the buoyancy box, the rotating arm, the pull rope, the tension spring, the rotating block, the fixed block, the first conductive block and the second conductive block are all arranged in the shell.

[0014] The reset knob is embedded in the housing, the reset knob is rotatably connected to the housing, and the reset knob extends from inside the housing to outside the housing.

[0015] One end of the rotating arm is sleeved on the reset knob and fixedly connected to the reset knob, and the other end of the rotating arm is rotatably connected to the rotating block, and the rotating axis of the rotating block is parallel to the axis of the reset knob.

[0016] The fixed block is fixed above the rotating block, the rotating block and the fixed block are magnetically attracted, the first conductive block is fixed on the rotating block, the second conductive block is fixed on the fixed block, and the first conductive block is in contact with the second conductive block when the rotating block and the fixed block are magnetically attracted.

[0017] The buoyancy box is connected to the rotating arm through the pull rope and is suspended below the rotating arm. The connection point between the pull rope and the rotating arm is located between the reset knob and the rotating block.

[0018] The tension spring is fixed above the rotating arm, one end of the tension spring is fixedly connected to the housing, the other end of the tension spring is fixedly connected to the rotating arm, and the connection point between the tension spring and the rotating arm is located between the reset knob and the pull rope.

[0019] The buoyancy box floats up when a flood comes, causing the rotating arm to rotate so that the rotating block and the fixed block are magnetically attracted, and the reset knob is used to reversely rotate the rotating arm when the flood recedes so that the rotating block and the fixed block are released from magnetic attraction.

[0020] Furthermore, the rotating block and the fixed block are magnetically attracted by a first magnetic block and a second magnetic block, the first magnetic block is fixed to the top of the rotating block, the second magnetic block is fixed to the bottom of the fixed block, corresponding to the position of the first magnetic block, the first conductive block is fixed to the top of the rotating block, and the second conductive block is fixed to the bottom of the fixed block, corresponding to the position of the first conductive block.

[0021] Furthermore, a partition is provided in the shell, and the partition is arranged above the buoyancy box and below the rotating arm, the tension spring, the rotating block, the fixed block, the first conductive block and the second conductive block, and the pull rope passes through the partition.

[0022] Furthermore, the photovoltaic power generation panel is fixed on the top of the cabinet and connected to the cabinet via a rotating bracket, and the rotating bracket is used to adjust the panel surface orientation and tilt angle of the photovoltaic power generation panel.

[0023] Furthermore, it also includes an alarm device, which is used to alarm when a flood comes and to alarm when the air cushion is not fully inflated during inflation.

[0024] Furthermore, it also includes a test switch, which is connected in parallel with the float switch and then in series with the air pump, the pressure switch and the second battery.

[0025] The beneficial effects of the present invention are:

[0026] The photovoltaic energy storage microgrid power station of the present invention has the function of flood prevention while using solar power generation. When a flood comes, it can float on the water surface, generate electricity in a green way, and reduce the maintenance and repair costs of power generation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view of a photovoltaic energy storage microgrid power station according to an embodiment of the present invention.

[0028] Figure 2 It is a side view of a photovoltaic energy storage microgrid power station according to an embodiment of the present invention.

[0029] Figure 3 It is a front longitudinal sectional view of a photovoltaic energy storage microgrid power station according to an embodiment of the present invention.

[0030] Figure 4 It is the control principle diagram of the buoyancy device.

[0031] Figure 5 yes Figure 3 A magnified schematic diagram of center A.

[0032] Figure 6 It is a floating state diagram of a photovoltaic energy storage microgrid power station according to an embodiment of the present invention.

[0033] Figure 7 This is a schematic diagram of the float switch disconnected state.

[0034] Figure 8 This is a schematic diagram of the float switch in closed state.

[0035] In the figure,

[0036] 1. Photovoltaic power generation panel; 2. Rotating bracket; 3. Display screen; 4. Test switch; 5. Cabinet; 6. Float switch; 7. Reset knob; 8. Traction ring; 9. Support leg; 10. Bracket; 11. Control module; 12. Air pump; 13. Air supply pipe; 14. Second battery; 15. First battery; 16. Pressure switch; 17. Air cushion box; 18. Air cushion; 19. Sealing plate; 20. Magnetic strip; 21. Tension spring; 22. Rotating arm; 23. First magnetic block; 24. Second magnetic block; 25. Fixed block; 26. Second conductive block; 27. First conductive block; 28. Rotating block; 29. ​​Pull rope; 30. Floating box; 31. DC-AC inverter; 32. Alarm device; 33. Partition; 34. First control switch; 35. Second control switch. DETAILED DESCRIPTION

[0037] The photovoltaic energy storage microgrid power station provided by the present invention is explained and illustrated in detail below in conjunction with the drawings in the specification.

[0038] This embodiment specifically discloses a photovoltaic energy storage microgrid power station, such as Figure 1 and 2As shown, it includes a photovoltaic power generation panel 1, a power station body, a buoyancy device and a float switch 6. The photovoltaic power generation panel 1 is fixed on the power station body to convert solar energy into electrical energy. Preferably, the photovoltaic power generation panel 1 is fixed on the top of the power station body, is not blocked by other objects, and has a large enough area to receive solar energy. The power station body includes a cabinet 5, a control module 11, a first battery 15 and a second battery 14. The control module 11, the first battery 15 and the second battery 14 are arranged in the cabinet 5. The photovoltaic power generation panel 1 is used to charge the first battery 15 and the second battery 14. The first battery 15 and the second battery 14 are both electrically connected to the control module 11. The control module 11 is used to control the charging and power supply status of the first battery 15 and the second battery 14. The first battery 15 is used to power the electrical equipment. The first battery 15 is used as a common battery. The first battery 15 is connected to the microgrid through the DC-AC inverter 31 to power the electrical equipment; the second battery 14 is used to power the buoyancy device, and the second battery 14 is used as a backup battery. The control module 11 controls the second battery 14 to be charged first, and the first battery 15 is charged after the second battery 14 is fully charged, that is, the photovoltaic energy storage microgrid power station is firstly ensured to have a flood prevention function. The buoyancy device is used to make the photovoltaic energy storage microgrid power station float on the water, and the float switch 6 is used to control the on-off of the electrical connection between the second battery 14 and the buoyancy device, and is used to close the buoyancy device when a flood comes to put the buoyancy device in a working state to make the photovoltaic energy storage microgrid power station float on the water, and prevent water from entering the power station body and damaging the power station body.

[0039] Alternatively, if Figure 1 and 2 As shown, the photovoltaic panel 1 is fixed on the top of the cabinet 5 and connected to the cabinet 5 through a rotating bracket 2, and the rotating bracket 2 is used to adjust the panel surface orientation and tilt angle of the photovoltaic panel 1. The rotating bracket 2 can manually adjust the panel surface orientation and tilt angle, or a control program can be set in the control module 11 to automatically adjust the panel surface orientation and tilt angle according to the season to adapt to the sunlight in different seasons, receive the strongest light, and make the photovoltaic panel 1 play the maximum effect.

[0040] Alternatively, if Figure 3 As shown, a plurality of brackets 10 are arranged in the cabinet 5 , and a control module 11 , a first battery 15 , a second battery 14 , and a DC-AC inverter 31 are fixed on the brackets 10 .

[0041] like Figure 3As shown, the buoyancy device includes an air cushion box 17, an air cushion 18, an air pump 12 and a pressure switch 16. The air cushion box 17 is fixed below the cabinet 5. The air cushion box 17 is a box with an opening on at least one side. The air cushion 18 is arranged in the air cushion box 17. The air pump 12 is used to inflate the air cushion 18. The air pump 12 is connected to the air cushion 18 through an air supply pipe 13. The air pump 12 is arranged on a bracket 10 in the cabinet 5. The pressure switch 16 is used to detect the air pressure in the air cushion 18 or the air pressure in the air supply pipe 13 connecting the air pump 12 and the air cushion 18. Preferably, the pressure switch 16 is arranged on the bracket 10 in the cabinet 5 to detect the air pressure in the air supply pipe 13, which is actually the air pressure in the air cushion 18. Figure 4 As shown, the air pump 12, the pressure switch 16, the second battery 14 and the float switch 6 are connected in series. The second battery 14 is used as a power source to supply power to the air pump 12. The pressure switch 16 is a normally closed switch. The pressure switch 16 is disconnected after the air cushion 18 is full. The air cushion 18 extends out of the air cushion box 17 after it is full. When a flood arrives, the float switch 6 is closed, the series circuit is connected, the air pump 12 starts to inflate the air cushion 18, and the pressure switch 16 detects the air pressure in real time. If the pressure in the air supply pipe 13 increases, it means that the air cushion 18 is inflated normally. When the pressure reaches a certain value, the air cushion 18 is full. The pressure value when the air cushion is full is pre-set in the pressure switch. The pressure switch detects the air pressure in real time. When the set pressure value is reached, it means that the air cushion 18 is full. At this time, the pressure switch 16 is disconnected, the air pump 12 stops working, and stops inflating.

[0042] In some embodiments, the photovoltaic energy storage microgrid power station of the present application also includes an alarm device 32, which is used to alarm when a flood arrives and when the air cushion 18 is not fully inflated during inflation. The alarm device 32 is electrically connected to the control module 11 and fixed to the bracket 10 in the cabinet 5. When the float switch 6 is closed, the alarm device 32 sends a flood alarm signal. Under normal circumstances, the power of the second battery 14 is completely sufficient to fully charge the air cushion 18. If the power of the second battery 14 is about to run out and the pressure in the air supply pipe 13 has not risen to the disconnection value of the pressure switch 16, it proves that the air supply pipe 13 or the air cushion 18 is leaking, and the alarm device 32 sends an alarm signal, indicating an alarm signal of failure of the buoyancy device.

[0043] The control module monitors the working status of the air pump. When the air pump starts working, it indicates that a flood is coming. The control module controls the alarm device to sound an alarm to provide flood prevention reminders. When the air pump remains in working status, the control module monitors the power of the second battery. When the power drops to a certain value but the pressure value detected by the pressure switch does not reach the set disconnection pressure value, the control module controls the alarm device to sound an alarm again to indicate that the buoyancy device has failed.

[0044] like Figure 3 and 5 As shown, two opposite sides of the air cushion box 17 are provided with openings, preferably the left and right sides.

[0045] The side of the air cushion box 17 with an opening is hinged with a sealing plate 19, and the sealing plate 19 and the air cushion box 17 are magnetically attracted to close the opening. After the air cushion 18 is inflated, the sealing plate 19 is pushed open to release the magnetic attraction. Figure 5 As shown, the sealing plate 19 is hinged to the air cushion box 17 through a hinge, and the hinge is set at the top of the air cushion box 17. The sealing plate 19 can be flipped upward. A magnetic strip 20 is embedded in the bottom edge of the sealing plate 19. Under normal circumstances, the magnetic strip 20 is attracted to the air cushion box 17 and is in a normally closed state to prevent mosquitoes from entering the air cushion box 17 and causing damage to the air cushion 18 and the air delivery pipe 13. Figure 6 As shown, after the air cushion 18 is inflated and unfolded, the sealing plate 19 is pushed outward, and the air cushion extends out of the air cushion box 17. The solar energy storage microgrid power station floats on the water surface, and the power station does not overturn.

[0046] An exhaust port is provided on the air cushion 18 , and after the flood recedes, the air cushion 18 can be exhausted and stored in the air cushion box 17 .

[0047] In some embodiments, Figure 1-3 As shown, four height-adjustable legs 9 arranged in a rectangular shape are fixed to the bottom of the air cushion box 17, which are used to support the photovoltaic energy storage microgrid power station under normal circumstances. The height of the legs 9 can be adjusted according to actual needs. The legs 9 are formed by threading a sleeve rod and a sleeve. For example, the sleeve is arranged above the sleeve rod, and the top of the sleeve is fixedly connected to the air cushion box 17. The top of the sleeve rod extends into the sleeve and is threadedly connected to the sleeve. The height of the legs 9 is adjusted by adjusting the distance of the threaded connection, and the support is stable and easy to adjust.

[0048] Alternatively, if Figure 1-3 As shown, a power station traction ring 8 is fixed to the bottom of the air cushion box 17. When the photovoltaic energy storage microgrid power station is put into use, a certain length of rope will be used in advance to connect the power station traction ring 8 to the ground anchor to prevent the photovoltaic energy storage microgrid power station from being washed away by floods.

[0049] like Figure 7 and 8As shown, the float switch 6 includes a shell, a float box 30, a rotating arm 22, a pull rope 29, a reset knob 7, a tension spring 21, a rotating block 28, a fixed block 25, a first conductive block 27 and a second conductive block 26. The shell is fixed to the side of the air cushion box 17, and an opening is provided at the bottom of the shell. The float box 30, the rotating arm 22, the pull rope 29, the tension spring 21, the rotating block 28, the fixed block 25, the first conductive block 27 and the second conductive block 26 are all arranged in the shell. The reset knob 7 is embedded in the shell, and the reset knob 7 is rotatably connected to the shell. The reset knob 7 extends from the inside of the shell to the outside of the shell. One end of the rotating arm 22 is sleeved on the reset knob 7 and fixedly connected to the reset knob 7. The other end of the rotating arm 22 is rotatably connected to the rotating block 28, and the rotating axis of the rotating block 28 is parallel to the axis of the reset knob 7. The fixed block 25 is fixed above the rotating block 28, the rotating block 28 and the fixed block 25 are magnetically attracted, the first conductive block 27 is fixed on the rotating block 28, and the second conductive block 26 is fixed on the fixed block 25. When the rotating block 28 and the fixed block 25 are magnetically attracted, the first conductive block 27 and the second conductive block 26 are in contact. The buoyancy box 30 is connected to the rotating arm 22 through the pull rope 29 and is suspended below the rotating arm 22. The connection point between the pull rope 29 and the rotating arm 22 is located between the reset knob 7 and the rotating block 28. The tension spring 21 is fixed above the rotating arm 22. One end of the tension spring 21 is fixedly connected to the shell, and the other end of the tension spring 21 is fixedly connected to the rotating arm 22. The connection point between the tension spring 21 and the rotating arm 22 is located between the reset knob 7 and the pull rope 29. When a flood comes, the buoyancy box 30 floats up to rotate the rotating arm 22 so that the rotating block 28 and the fixed block 25 are magnetically attracted. The reset knob 7 is used to rotate the rotating arm 22 in the opposite direction when the flood recedes so that the rotating block 28 and the fixed block 25 are released from magnetic attraction. Under normal circumstances, if Figure 7 As shown, due to the gravity of the floating box 30 pulling the rotating arm 22 and the tension spring 21 downward, the tension spring 21 is in a stretched state, and the rotating block 28 and the fixed block 25 are not magnetically attracted together. At this time, the first conductive block 27 and the second conductive block 26 are in a separated state, and the float switch 6 is in a disconnected state. Figure 8 As shown, when a flood comes, the buoy 30 floats up, and with the contraction force of the tension spring 21, the rotating arm 22 and the reset knob 7 rotate counterclockwise until the rotating block 28 and the fixed block 25 are magnetically attracted together, the first conductive block 27 and the second conductive block 26 are in contact, and the float switch 6 is closed. After the flood recedes, the reset knob 7 is turned clockwise, and the reset knob 7 drives the rotating arm 22 to rotate clockwise. Under the gravity of the buoy 30, the rotating arm 22 rotates clockwise, the tension spring 21 is stretched, the rotating block 28 and the fixed block 25 are released from magnetic attraction, the first conductive block 27 and the second conductive block 26 are separated, and the float switch 6 is disconnected, and the control is restored to Figure 7 Status shown.

[0050] The rotating block 28 and the fixed block 25 are magnetically attracted by the first magnetic block 23 and the second magnetic block 24. The first magnetic block 23 is fixed at the top of the rotating block 28, and the second magnetic block 24 is fixed at the bottom of the fixed block 25, corresponding to the position of the first magnetic block 23. The first conductive block 27 is fixed at the top of the rotating block 28, and the second conductive block 26 is fixed at the bottom of the fixed block 25, corresponding to the position of the first conductive block 27. The first magnetic block 23 and the second magnetic block 24 attract each other to achieve contact between the first conductive block 27 and the second conductive block 26. The shape of the rotating block 28 is an inverted trapezoid. The rotating block 28 is connected to the rotating arm 22 through rotation, so that no matter what state the rotating arm 22 is in, the rotating block 28 always maintains a horizontal state, ensuring the magnetic force of the first magnetic block 23 and the second magnetic block 24 and the contact area of ​​the first conductive block 27 and the second conductive block 26.

[0051] Optionally, the first conductive block 27 and the second conductive block 26 are both copper blocks.

[0052] Alternatively, if Figure 7 and 8 As shown, a partition 33 is further provided in the housing, and the partition 33 is arranged above the buoyancy box 30 and below the rotating arm 22, the tension spring 21, the rotating block 28, the fixed block 25, the first conductive block 27 and the second conductive block 26, and the pull rope 29 passes through the partition 33. The partition 33 is used to block the buoyancy box 30 after it floats to a certain height to prevent the buoyancy box 30 from affecting the opening and closing of the float switch 6.

[0053] Preferably, under normal circumstances, the bottom of the buoyancy box 30 is flush with the bottom of the air cushion box 17 .

[0054] In some embodiments, a test switch 4 is further included. The test switch 4 is connected in parallel with the float switch 6 and then connected in series with the air pump 12, the pressure switch 16, and the second battery 14. The test switch 4 is a knob type or a button type and is embedded in the cabinet 5. The test switch 4 can be used to test the buoyancy device using the second battery 14 in special periods to test whether it can work normally.

[0055] In some embodiments, a first control switch 34 is also included. The first control switch 34 is a knob type or a button type and is embedded in the cabinet 5. The first control switch 34 controls the on-off connection between the control module and the alarm device. When the test switch 4 is closed, the first control switch is disconnected, so that the photovoltaic energy storage microgrid power station is in a non-alarm state, and only tests whether the buoyancy device can work normally.

[0056] In some embodiments, a second control switch 35 is also included, which is a knob type or a button type and is embedded in the cabinet 5. The second control switch 35 is used to control the connection between the second battery and the microgrid. In special periods, such as when the power of the first battery is low or there are other special power requirements, the second control switch 35 is closed to connect the second battery to the microgrid to supply power to the electrical equipment.

[0057] The cabinet 5 is also provided with a display screen 3 which can display information such as the alarm status and the power status of the first battery 15 and the second battery 14 .

[0058] The working process of the optical energy storage microgrid power station in this application is:

[0059] When a flood arrives, the buoyancy box 30 floats up, the tension spring 21 pulls the rotating arm 22 to rotate counterclockwise, the first magnetic block 23 and the second magnetic block 24 attract each other, so that the first conductive block 27 and the second conductive block 26 fit together, the float switch 6 closes, the control module 11 enables the second battery to start power supply, the air pump 12 starts to inflate the air cushion 18, and at the same time, a flood alarm signal is sent through the remote alarm device 32. If the pressure in the air supply pipe 13 increases, it means that the air cushion 18 is inflated normally. After the pressure reaches the set pressure value, it means that the air cushion 18 is full, the pressure switch 16 is disconnected, and the inflation stops. Under normal circumstances, the power of the second battery is completely sufficient to fill the air cushion 18. If the power of the second battery is about to run out, and the pressure in the air supply pipe 13 does not rise to the disconnection value of the pressure switch 16, it proves that the air supply pipe 13 or the air cushion 18 is leaking, and the power station will send out a buoyancy device failure alarm signal again through the remote alarm device 32.

[0060] After the flood recedes, the reset knob 7 is turned clockwise, and the floating box 30 pulls down the rotating arm 22 by its own weight, keeping the rotating arm 22 in a horizontal or certain state, and the first conductive block 27 does not fit the second conductive block 26. At this time, the air cushion 18 can be manually exhausted and stored in the air cushion box 17 for flood prevention when the next flood comes.

[0061] The photovoltaic energy storage microgrid power station of the present application can trigger the float switch 6 and the buoyancy device when a flood arrives, so that the power station floats on the water surface, avoiding water ingress into the power station and damaging the equipment, and ensuring the normal use and operation of the power station. After the flood recedes, the power station falls and returns to the ground.

[0062] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic energy storage microgrid power station, characterized in that: It comprises a photovoltaic power generation panel (1), a power station body, a buoyancy device and a float switch (6), The photovoltaic power generation panel (1) is fixed on the power station body. The power station body comprises a cabinet (5), a control module (11), a first battery (15) and a second battery (14); the control module (11), the first battery (15) and the second battery (14) are arranged in the cabinet (5); the photovoltaic power generation panel (1) is used to charge the first battery (15) and the second battery (14); the first battery (15) and the second battery (14) are both electrically connected to the control module (11); the control module (11) is used to control the charging and power supply status of the first battery (15) and the second battery (14); the first battery (15) is used to supply power to electrical equipment; the second battery (14) is used to supply power to the buoyancy device; The buoyancy device is used to make the photovoltaic energy storage microgrid power station float on the water. The float switch (6) is used to control the on / off connection between the second battery (14) and the buoyancy device, and is used to close the buoyancy device when a flood comes, so that the buoyancy device is in a working state and the photovoltaic energy storage microgrid power station floats on the water.

2. The photovoltaic energy storage microgrid power station according to claim 1, characterized in that: The buoyancy device comprises an air cushion box (17), an air cushion (18), an air pump (12) and a pressure switch (16); the air cushion box (17) is fixed below the cabinet (5); the air cushion (18) is arranged in the air cushion box (17); the air pump (12) is used to inflate the air cushion (18); the pressure switch (16) is used to detect the air pressure in the air cushion (18) or the air pressure in the air supply pipe (13) connecting the air pump (12) and the air cushion (18); the air pump (12), the pressure switch (16), the second battery (14) and the float switch (6) are connected in series; the pressure switch (16) is a normally closed switch; the pressure switch (16) is disconnected after the air cushion (18) is full; and the air cushion (18) extends out of the air cushion box (17) after it is full.

3. The photovoltaic energy storage microgrid power station according to claim 2, characterized in that: Two opposite sides of the air cushion box (17) are provided with openings.

4. The photovoltaic energy storage microgrid power station according to claim 3, characterized in that: The side portions of the air cushion box (17) provided with an opening are hingedly connected with a sealing plate (19), and the sealing plate (19) and the air cushion box (17) are magnetically attracted to close the opening, and after the air cushion (18) is inflated, the sealing plate (19) is pushed open to release the magnetic attraction.

5. The photovoltaic energy storage microgrid power station according to claim 1, characterized in that: The float switch (6) comprises a housing, a float box (30), a rotating arm (22), a pull rope (29), a reset knob (7), a tension spring (21), a rotating block (28), a fixed block (25), a first conductive block (27) and a second conductive block (26). The bottom of the shell is provided with an opening, and the buoyancy box (30), the rotating arm (22), the pull rope (29), the tension spring (21), the rotating block (28), the fixed block (25), the first conductive block (27) and the second conductive block (26) are all arranged in the shell. The reset knob (7) is embedded in the housing, the reset knob (7) is rotatably connected to the housing, and the reset knob (7) extends from inside the housing to outside the housing. One end of the rotating arm (22) is sleeved on the reset knob (7) and fixedly connected to the reset knob (7), and the other end of the rotating arm (22) is rotatably connected to the rotating block (28), and the rotating axis of the rotating block (28) is parallel to the axis of the reset knob (7). The fixed block (25) is fixed above the rotating block (28), the rotating block (28) and the fixed block (25) are magnetically attracted, the first conductive block (27) is fixed on the rotating block (28), the second conductive block (26) is fixed on the fixed block (25), and when the rotating block (28) and the fixed block (25) are magnetically attracted, the first conductive block (27) and the second conductive block (26) are in contact, The buoyancy box (30) is connected to the rotating arm (22) through the pull rope (29) and is suspended below the rotating arm (22). The connection point between the pull rope (29) and the rotating arm (22) is located between the reset knob (7) and the rotating block (28). The tension spring (21) is fixed above the rotating arm (22), one end of the tension spring (21) is fixedly connected to the housing, the other end of the tension spring (21) is fixedly connected to the rotating arm (22), and the connection point between the tension spring (21) and the rotating arm (22) is located between the reset knob (7) and the pull rope (29). The buoyancy box (30) floats up when a flood comes, causing the rotating arm (22) to rotate so that the rotating block (28) and the fixed block (25) are magnetically attracted, and the reset knob (7) is used to cause the rotating arm (22) to rotate in the opposite direction when the flood recedes so that the rotating block (28) and the fixed block (25) are released from magnetic attraction.

6. The photovoltaic energy storage microgrid power station according to claim 5, characterized in that: The rotating block (28) and the fixed block (25) are magnetically attracted by a first magnetic block (23) and a second magnetic block (24); the first magnetic block (23) is fixed to the top of the rotating block (28); the second magnetic block (24) is fixed to the bottom of the fixed block (25) and corresponds to the position of the first magnetic block (23); the first conductive block (27) is fixed to the top of the rotating block (28); and the second conductive block (26) is fixed to the bottom of the fixed block (25) and corresponds to the position of the first conductive block (27).

7. The photovoltaic energy storage microgrid power station according to claim 5, characterized in that: A partition (33) is also provided in the shell. The partition (33) is arranged above the buoyancy box (30) and below the rotating arm (22), the tension spring (21), the rotating block (28), the fixed block (25), the first conductive block (27) and the second conductive block (26). The pull rope (29) passes through the partition (33).

8. The photovoltaic energy storage microgrid power station according to claim 1, characterized in that: The photovoltaic power generation panel (1) is fixed on the top of the cabinet (5) and connected to the cabinet (5) via a rotating bracket (2), and the rotating bracket (2) is used to adjust the panel surface orientation and tilt angle of the photovoltaic power generation panel (1).

9. The photovoltaic energy storage microgrid power station according to claim 1, characterized in that: It also includes an alarm device (32), which is used to alarm when a flood comes and alarm when the air cushion (18) is not fully inflated during inflation.

10. The photovoltaic energy storage microgrid power station according to claim 2, characterized in that: It also includes a test switch (4), wherein the test switch (4) is connected in parallel with the float switch (6) and then connected in series with the air pump (12), the pressure switch (16) and the second battery (14).

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