A non-intrusive energy storage cabin for a photovoltaic energy storage system

Abstract

The application discloses a non-entry type energy storage cabin of a photovoltaic energy storage system and relates to the technical field of photovoltaic energy storage cabins.The non-entry type energy storage cabin comprises a base, a photovoltaic energy storage device, a first cabin body, a second cabin body and a mounting plate, a heat dissipation mechanism, the heat dissipation mechanism comprises a mounting opening formed in the lower end of the mounting plate, the mounting opening is arranged through the mounting plate, the inner wall of the mounting opening is fixedly connected with a transverse plate, the side wall of the transverse plate is rotatably connected with a first rotating shaft, and the side wall of the first rotating shaft is fixedly connected with a plurality of first fan blades.In the application, the photovoltaic energy storage device will emit heat during operation, and the heat is transferred to dichloromethane in the pressure boosting cavity at this time, the dichloromethane absorbs heat and starts to evaporate, changes from a liquid state to a gaseous state, and the gaseous dichloromethane flows through the one-way pressure discharge pipe, blows a plurality of impellers to rotate, and further drives a plurality of first fan blades to rotate, blows the back of the photovoltaic energy storage device, and thus the heat dissipation effect is improved, and the heat dissipation is more uniform.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic energy storage cabin technology, and in particular to a non-walk-in energy storage cabin for a photovoltaic energy storage system. Background Technology

[0002] Photovoltaics is short for solar photovoltaic power generation system. It is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It can be operated independently or connected to the grid.

[0003] Currently, photovoltaic energy storage systems have problems such as large footprint, low operation and maintenance safety, and high fire risk. In addition, existing photovoltaic energy storage systems usually use fans for ventilation to dissipate heat. However, there is a problem with ventilation: the side facing the photovoltaic energy storage equipment and the airflow can receive cold air for heat dissipation, while the back side is difficult to contact with cold air, resulting in uneven heat dissipation. Furthermore, the existing fans have a constant speed, which results in insufficient heat dissipation or waste of resources.

[0004] Based on this, we propose a non-walk-in energy storage compartment for photovoltaic energy storage systems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a non-walk-in energy storage cabin for a photovoltaic energy storage system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A non-walk-in energy storage compartment for a photovoltaic energy storage system includes a base, photovoltaic energy storage equipment, a first compartment, a second compartment, and a mounting plate;

[0008] A heat dissipation mechanism includes a mounting port located at the lower end of a mounting plate, the mounting port penetrating the mounting plate. A horizontal plate is fixedly connected to the inner wall of the mounting port, and a first rotating shaft is rotatably connected to the side wall of the horizontal plate. Multiple first fan blades are fixedly connected to the side wall of the first rotating shaft. A loading box is fixedly connected to the lower end of the mounting plate, and a sealing block is fixedly connected to the inner wall of the loading box. The sealing block divides the interior of the loading box into two parts: a pressure-boosting chamber and a cooling chamber. The pressure-boosting chamber is filled with dichloromethane and communicates with the cooling chamber through a one-way pressure relief pipe. A pressure valve is installed on the inner wall of the one-way pressure relief pipe, and a rotating rod is rotatably connected to the inner wall of the one-way pressure relief pipe. Multiple impellers are fixedly connected to the side wall of the rotating rod, and one end of the rotating rod penetrates the upper end of the loading box and is fixedly connected to the first rotating shaft.

[0009] Preferably, the sealing block is equipped with a liquid return mechanism, which includes a first cavity opened in the sealing block, a sliding plug being slidably connected to the inner wall of the first cavity, the first cavity being connected to the cooling cavity through a one-way liquid inlet pipe, and the first cavity being connected to the pressure boosting cavity through a one-way liquid outlet pipe.

[0010] Preferably, the return mechanism further includes a first spring fixedly connected to the inner wall of the first cavity, the other end of the first spring being fixedly connected to the slide plug, one end of the rotating rod extending into the first cavity and fixedly connected to a cam, the side wall of the cam slidingly abutting against the slide plug.

[0011] Preferably, a folding mechanism is installed on the base. The folding mechanism includes two symmetrically arranged sliding grooves on the upper end of the base. The inner walls of the two sliding grooves are slidably connected to a first compartment and a second compartment. The side wall of the first compartment has an installation groove. The second compartment is slidably connected to the inner wall of the installation groove. A cross groove is provided on the upper end of the base. The inner wall of the cross groove has two cross blocks symmetrically slidably connected. The side walls of the two cross blocks are fixedly connected to two connecting rods. The other ends of the two connecting rods are fixedly connected to the inner walls of the first compartment and the second compartment, respectively.

[0012] Preferably, the folding mechanism further includes a U-shaped frame fixedly connected to the upper end of the base. The inner wall of the U-shaped frame has two vertical grooves symmetrically formed. The inner walls of the two vertical grooves are slidably connected to a mounting block. One end of the mounting plate is rotatably connected to the side wall of the mounting block, and the other end of the mounting plate is rotatably connected to the upper end of the cross block. The upper end of the mounting plate is fixedly connected to a photovoltaic energy storage device through multiple fixed shafts. A hydraulic cylinder is fixedly connected to the bottom of the cross groove, and the movable end of the hydraulic cylinder is fixedly connected to the lower end of the mounting block.

[0013] Preferably, a ventilation mechanism is installed on the first and second cabins. The ventilation mechanism includes ventilation openings opened on the side walls of the first and second cabins. A second rotating shaft is rotatably connected to the inner wall of the ventilation opening. A plurality of second fan blades are fixedly connected to the side wall of the second rotating shaft. A motor is fixedly connected to the side walls of the first and second cabins through a bracket. The output end of the motor is fixedly connected to the second rotating shaft.

[0014] Preferably, a control mechanism is installed on the mounting plate. The control mechanism includes a second cavity opened in the mounting plate. A magnetic plate is slidably connected to the inner wall of the second cavity. A conductive rod is fixedly connected to the side wall of the magnetic plate. A resistance strip that cooperates with the conductive rod is embedded in the inner wall of the second cavity. A second spring is fixedly connected between the inner wall of the second cavity and the magnetic plate.

[0015] Preferably, the control mechanism further includes an electromagnet fixedly connected to the inner wall of the second cavity, an induction coil is embedded in the sealing block, the induction coil is arranged around the unidirectional pressure discharge pipe, one of the impellers is made of magnetic material, the induction coil and the electromagnet are electrically connected by a wire, and the conductive rod, the resistance strip, the motor and the external power supply are electrically connected by a wire.

[0016] Preferably, a power-off mechanism is installed inside the cooling cavity. The power-off mechanism includes a sliding plate that is sealed and slidably connected to the inner wall of the cooling cavity. The sliding plate divides the interior of the cooling cavity into a conversion cavity and a control cavity. A third spring is fixedly connected between the sliding plate and the inner wall of the control cavity. The control cavity is filled with mercury. Two conductive plates are symmetrically embedded in the inner wall of the control cavity. The photovoltaic energy storage device and the two conductive plates are electrically connected by wires.

[0017] Preferably, the first hull sidewall has two first hatches symmetrically opened, and the second hull sidewall has two second hatches symmetrically opened.

[0018] The present invention has the following beneficial effects:

[0019] 1. By setting up a heat dissipation mechanism, as the photovoltaic energy storage device operates, it will dissipate heat. At this time, the heat is transferred to the dichloromethane in the pressure boosting chamber. The dichloromethane will absorb the heat and begin to evaporate, changing from a liquid state to a gaseous state. When the gaseous dichloromethane flows through the one-way pressure relief pipe, it will blow multiple impellers to rotate, which in turn drives multiple first fan blades to rotate, blowing air onto the back of the photovoltaic energy storage device, thereby improving the heat dissipation effect and making the heat dissipation more uniform.

[0020] 2. When the temperature inside the first and second chambers is higher, the evaporation rate of dichloromethane per unit time will be faster, which in turn will result in a higher pressure in the pressurization chamber per unit time. Consequently, the flow rate of gaseous dichloromethane entering the one-way pressure relief pipe will be faster, which will cause the multiple impellers to rotate faster, the rotating rods to rotate faster, the first rotating shaft to rotate faster, and the multiple first fan blades to rotate faster. This will result in faster air circulation and better heat dissipation. Therefore, the heat dissipation and ventilation effect can be automatically adjusted according to the temperature, making it more intelligent.

[0021] 3. By setting up a retraction mechanism, when the photovoltaic energy storage equipment is in normal use, the hydraulic cylinder is extended, which moves the mounting block upward. Then, the two mounting plates will rotate towards the U-shaped frame and gradually retract. At this time, the two cross blocks will slide closer to each other. The cross blocks will drive the first and second compartments to slide closer to each other through the connecting rod. Finally, the second compartment will slide into the first compartment, and the photovoltaic energy storage equipment will be retracted into an almost vertical state. This reduces the overall space volume of the device, makes the internal structure more compact, and reduces the footprint. When maintenance is required, the hydraulic cylinder can be retracted, which moves the mounting block downward. At this time, the two mounting plates rotate to both sides, which will drive the two cross blocks to slide away from each other. Then, the first and second compartments will move away from each other until the first and second hatches open, allowing maintenance of the internal photovoltaic energy storage equipment through the first and second hatches.

[0022] 4. By setting up a control mechanism, when the temperature is higher, the impeller rotates faster, and the impeller cuts the magnetic field lines faster. This results in a larger induced current generated by the induction coil, a larger current flowing into the electromagnet, and a stronger magnetic repulsion force generated by the electromagnet. This causes the magnetic plate to be farther away from the electromagnet, resulting in a smaller resistance in the circuit. This further increases the current flowing into the motor, causing the motor to rotate faster. Consequently, the rotation speed of the multiple second fan blades increases, leading to better air circulation and heat dissipation. Therefore, the second fan blades can automatically adjust to the amount of heat generated, achieving optimal heat dissipation without wasting resources.

[0023] 5. By incorporating a power-off mechanism, when the photovoltaic energy storage device experiences a deflagration, the temperature inside the first and second chambers will rise rapidly and instantaneously. At this time, dichloromethane will evaporate rapidly within a short period, and a large amount of dichloromethane will rush into the cooling chamber through the one-way pressure relief pipe, causing the pressure inside the cooling chamber to rise instantly. This pressure will exceed the elastic force of the third spring, pushing the sliding plate towards the U-shaped frame. Consequently, mercury will be pushed along with the sliding plate. When the mercury detaches from the two conductive plates, the photovoltaic energy storage device will lose power, thus providing power-off protection. Since the evaporation of dichloromethane and the sliding plate pushing the mercury detach from the conductive plates both require a certain amount of time, the photovoltaic energy storage device will not immediately lose power when an abnormally rapid temperature rise occurs in the first and second chambers, but will instead experience a delayed power-off. This effectively avoids the situation where the photovoltaic energy storage device only experiences a brief and rapid temperature rise rather than a deflagration, thereby preventing erroneous power outages. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a non-walk-in energy storage compartment for a photovoltaic energy storage system proposed in this invention.

[0025] Figure 2 for Figure 1 Side view of the middle structure;

[0026] Figure 3 for Figure 1 Cross-sectional view of the middle structure;

[0027] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the diagram;

[0028] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B in the diagram;

[0029] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point C.

[0030] In the diagram: 1. Base; 2. Photovoltaic energy storage device; 3. First compartment; 4. Second compartment; 5. Mounting plate; 6. Loading box; 7. Sealing block; 701. Pressure boosting chamber; 702. Cooling chamber; 8. Mounting port; 9. Horizontal plate; 10. First rotating shaft; 11. First fan blade; 13. One-way pressure discharge pipe; 14. Rotating rod; 15. Impeller; 16. First chamber; 17. Sliding plug; 18. One-way liquid inlet pipe; 19. One-way liquid outlet pipe; 20. First spring; 21. Cam; 22. Slide groove; 23. Cross groove; 24. Cross block; 2 5. Connecting rod; 26. Mounting slot; 27. U-shaped frame; 28. Vertical slot; 29. ​​Mounting block; 30. Hydraulic cylinder; 31. Ventilation port; 32. Second rotating shaft; 33. Second fan blade; 34. Motor; 35. Second cavity; 36. Magnetic plate; 37. Conductive rod; 38. Resistance bar; 39. Second spring; 40. Electromagnet; 41. Induction coil; 42. Slide plate; 421. Conversion cavity; 422. Control cavity; 43. Third spring; 44. Mercury; 45. Conductive plate; 46. First hatch; 47. Second hatch. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Reference Figure 1 - Figure 6A non-walk-in energy storage compartment for a photovoltaic energy storage system includes a base 1, a photovoltaic energy storage device 2, a first compartment 3, a second compartment 4, and a mounting plate 5. The first compartment 3 has two first hatches 46 symmetrically opened on its side wall, and the second compartment 4 has two second hatches 47 symmetrically opened on its side wall.

[0033] The heat dissipation mechanism includes a mounting port 8 located at the lower end of the mounting plate 5, extending through the mounting plate 5. A horizontal plate 9 is fixedly connected to the inner wall of the mounting port 8, and a first rotating shaft 10 is rotatably connected to the side wall of the horizontal plate 9. Multiple first fan blades 11 are fixedly connected to the side wall of the first rotating shaft 10. A loading box 6 is fixedly connected to the lower end of the mounting plate 5, and a sealing block 7 is fixedly connected to the inner wall of the loading box 6, dividing the interior of the loading box 6 into a pressure boosting chamber 701 and a cooling chamber 702. The pressure boosting chamber 701 is filled with dichloromethane. The pressure boosting chamber 701 is connected to the cooling chamber 702 through a one-way pressure relief pipe 13. A pressure valve is installed on the inner wall of the one-way pressure relief pipe 13. The one-way pressure relief pipe 13 only allows the dichloromethane in the pressure boosting chamber 701 to enter the cooling chamber 702. A rotating rod 14 is rotatably connected to the inner wall of the one-way pressure relief pipe 13. Multiple impellers 15 are fixedly connected to the side wall of the rotating rod 14. One end of the rotating rod 14 passes through the upper end of the loading box 6 and is fixedly connected to the first rotating shaft 10.

[0034] It should be noted that the loading box 6 surrounding the pressure boosting chamber 701 is made of thermally conductive material, which can effectively transfer heat to the dichloromethane. The rest of the loading box 6 is made of thermally insulating material.

[0035] Furthermore, as the photovoltaic energy storage device 2 operates, it dissipates heat, causing the temperature inside the first chamber 3 and the second chamber 4 to rise. This heat is then transferred to the dichloromethane inside the pressure boosting chamber 701. The dichloromethane absorbs the heat and begins to evaporate. Since the evaporation temperature of dichloromethane is 39.75 degrees Celsius, when the temperature inside the first chamber 3 and the second chamber 4 exceeds 39.75 degrees Celsius, the dichloromethane begins to change from a liquid to a gaseous state, causing the pressure inside the pressure boosting chamber 701 to continuously increase. When the pressure inside the pressure boosting chamber 701 exceeds the unidirectional pressure relief... When the pressure relief valve in pipe 13 reaches its threshold, gaseous dichloromethane will enter the one-way pressure relief pipe 13 and then the cooling chamber 702. When the dichloromethane flows through the one-way pressure relief pipe 13, since the gaseous dichloromethane has a certain pressure, it will blow multiple impellers 15 to rotate, which in turn drives the rotating rod 14 to rotate, drives the first rotating shaft 10 to rotate, and drives multiple first fan blades 11 to rotate. Under the action of the first fan blades 11, air is blown onto the back of the photovoltaic energy storage device 2, thereby improving the heat dissipation effect and making the heat dissipation more uniform.

[0036] It should be noted that, since a pressure relief valve is installed in the one-way pressure relief pipe 13, the gaseous dichloromethane in the pressure boosting chamber 701 can continuously accumulate and increase pressure in the pressure boosting chamber 701. Therefore, the threshold of the pressure relief valve can be set according to actual needs, thereby adjusting the pressure value in the pressure boosting chamber 701. Thus, the pressure and flow rate of gaseous dichloromethane entering the one-way pressure relief pipe 13 can be adjusted, thereby ensuring that the gaseous dichloromethane has sufficient pressure and flow rate to drive the impeller 15 to rotate.

[0037] A liquid return mechanism is installed on the sealing block 7. The liquid return mechanism includes a first cavity 16 opened in the sealing block 7. A sliding plug 17 is slidably connected to the inner wall of the first cavity 16. The first cavity 16 is connected to the cooling cavity 702 through a one-way liquid inlet pipe 18. The one-way liquid inlet pipe 18 only allows dichloromethane in the cooling cavity 702 to enter the first cavity 16. The first cavity 16 is connected to the pressure boosting cavity 701 through a one-way liquid drain pipe 19. The one-way liquid drain pipe 19 only allows dichloromethane in the first cavity 16 to enter the pressure boosting cavity 701.

[0038] The liquid return mechanism also includes a first spring 20 fixedly connected to the inner wall of the first cavity 16, the other end of the first spring 20 being fixedly connected to the slide plug 17, one end of the rotating rod 14 extending into the first cavity 16 and being fixedly connected to a cam 21, the side wall of the cam 21 slidingly abutting against the slide plug 17.

[0039] Furthermore, the gaseous dichloromethane entering the cooling chamber 702 will be recooled into a liquid state and stored in the cooling chamber 702. The rotation of the rotating rod 14 will cause the cam 21 to rotate, which, in conjunction with the first spring 20, will cause the sliding plug 17 to reciprocate and seal. At this time, the liquid dichloromethane in the cooling chamber 702 will enter the first chamber 16 through the one-way liquid inlet pipe 18. Then, the liquid dichloromethane in the first chamber 16 will flow back to the pressure boosting chamber 701 through the one-way liquid outlet pipe 19. This cycle repeats, and the dichloromethane can be continuously evaporated and refluxed, driving multiple first fan blades 11 to rotate. When the temperature in the first chamber 3 and the second chamber 4 is stable, the evaporation rate of dichloromethane will be stable, thereby ensuring uniform and continuous evaporation.

[0040] It is worth mentioning that when the temperature inside the first chamber 3 and the second chamber 4 is higher, the evaporation rate of dichloromethane per unit time will be faster, which in turn will result in a higher pressure inside the pressure boosting chamber 701 per unit time. Consequently, the flow rate of gaseous dichloromethane entering the one-way pressure relief pipe 13 will be faster, which in turn will cause the multiple impellers 15 to rotate faster, the rotating rod 14 to rotate faster, the first rotating shaft 10 to rotate faster, and the multiple first fan blades 11 to rotate faster. This results in faster airflow and better heat dissipation. Therefore, the heat dissipation and ventilation effect can be automatically adjusted according to the temperature, making it more intelligent.

[0041] A folding mechanism is installed on the base 1. The folding mechanism includes two symmetrically opened sliding grooves 22 on the upper end of the base 1. The inner walls of the two sliding grooves 22 are slidably connected to the first compartment 3 and the second compartment 4. The side wall of the first compartment 3 is provided with an installation groove 26. The second compartment 4 is slidably connected to the inner wall of the installation groove 26. The upper end of the base 1 is provided with a cross groove 23. The inner wall of the cross groove 23 is symmetrically slidably connected to two cross blocks 24. The side walls of the two cross blocks 24 are fixedly connected to two connecting rods 25. The other ends of the two connecting rods 25 are fixedly connected to the inner walls of the first compartment 3 and the second compartment 4, respectively.

[0042] The folding mechanism also includes a U-shaped frame 27 fixedly connected to the upper end of the base 1. Two vertical grooves 28 are symmetrically opened on the inner wall of the U-shaped frame 27. The inner walls of the two vertical grooves 28 are slidably connected to the mounting block 29. One end of the mounting plate 5 is rotatably connected to the side wall of the mounting block 29, and the other end of the mounting plate 5 is rotatably connected to the upper end of the cross block 24. The upper end of the mounting plate 5 is fixedly connected to the photovoltaic energy storage device 2 through multiple fixed shafts. A hydraulic cylinder 30 is fixedly connected to the bottom of the cross groove 23. The movable end of the hydraulic cylinder 30 is fixedly connected to the lower end of the mounting block 29.

[0043] Furthermore, when the photovoltaic energy storage device 2 is in normal use, the hydraulic cylinder 30 is extended, causing the mounting block 29 to move upward. This causes the two mounting plates 5 to rotate towards the U-shaped frame 27 and gradually retract. At this time, the two cross blocks 24 slide closer to each other. The cross blocks 24, through the connecting rod 25, cause the first compartment 3 and the second compartment 4 to slide closer to each other. Finally, the second compartment 4 slides into the first compartment 3, and the photovoltaic energy storage device 2 retracts into an approximately vertical state. This reduces the overall volume of the device, making the internal structure more compact and reducing the floor space. When maintenance is required, the hydraulic cylinder 30 is retracted, causing the mounting block 29 to move downward. At this time, the two mounting plates 5 rotate to both sides, causing the two cross blocks 24 to slide away from each other. This causes the first compartment 3 and the second compartment 4 to move away from each other until the first hatch 46 and the second hatch 47 open, allowing maintenance of the internal photovoltaic energy storage device 2.

[0044] Ventilation mechanisms are installed on the first compartment 3 and the second compartment 4. The ventilation mechanisms include ventilation openings 31 opened on the side walls of the first compartment 3 and the second compartment 4. A second rotating shaft 32 is rotatably connected to the inner wall of the ventilation opening 31. A plurality of second fan blades 33 are fixedly connected to the side wall of the second rotating shaft 32. A motor 34 is fixedly connected to the side wall of the first compartment 3 and the second compartment 4 through a bracket. The output end of the motor 34 is fixedly connected to the second rotating shaft 32.

[0045] Furthermore, the drive motor 34 drives the second rotating shaft 32 to rotate, which in turn drives multiple second fan blades 33 to rotate. As a result, external air enters the first chamber 3 and the second chamber 4 through the ventilation port 31 and blows towards the photovoltaic energy storage device 2 to cool it down.

[0046] A control mechanism is installed on the mounting plate 5. The control mechanism includes a second cavity 35 opened in the mounting plate 5. A magnetic plate 36 is slidably connected to the inner wall of the second cavity 35. A conductive rod 37 is fixedly connected to the side wall of the magnetic plate 36. An insulating sleeve is fitted on the side wall of the magnetic plate 36 to provide good insulation. A resistance strip 38 that cooperates with the conductive rod 37 is embedded in the inner wall of the second cavity 35. A second spring 39 is fixedly connected between the inner wall of the second cavity 35 and the magnetic plate 36.

[0047] The control mechanism also includes an electromagnet 40 fixedly connected to the inner wall of the second cavity 35, an induction coil 41 embedded in the sealing block 7, the induction coil 41 being arranged around the one-way pressure relief pipe 13, one of the impellers 15 being made of magnetic material, the induction coil 41 being electrically connected to the electromagnet 40 via a wire, and the conductive rod 37, the resistor strip 38, the motor 34 and the external power supply being electrically connected via a wire.

[0048] Furthermore, as the temperature increases, the impeller 15 rotates faster, cutting magnetic field lines more quickly. This results in a larger induced current in the induction coil 41, leading to a larger current flowing into the electromagnet 40. Consequently, the electromagnet 40 generates a stronger magnetic repulsion, causing the magnetic plate 36 to move further away from the electromagnet 40. This reduces the resistance of the resistor strip 38 in the circuit, resulting in a larger current flowing into the motor 34. Consequently, the motor 34 rotates faster, causing the multiple second fan blades 33 to rotate faster. This improves airflow and heat dissipation, allowing the second fan blades 33 to automatically adjust to the amount of heat generated, achieving optimal heat dissipation without wasting resources.

[0049] A power-off mechanism is installed inside the cooling chamber 702. The power-off mechanism includes a sliding plate 42 that is sealed and slidably connected to the inner wall of the cooling chamber 702. The sliding plate 42 divides the interior of the cooling chamber 702 into a conversion chamber 421 and a control chamber 422. A third spring 43 is fixedly connected between the sliding plate 42 and the inner wall of the control chamber 422. The control chamber 422 is filled with mercury 44. Two conductive plates 45 are symmetrically embedded in the inner wall of the control chamber 422. The photovoltaic energy storage device 2 and the two conductive plates 45 are electrically connected by wires.

[0050] Furthermore, when the photovoltaic energy storage device 2 experiences a deflagration, the temperature inside the first chamber 3 and the second chamber 4 will rise rapidly and instantaneously. At this time, dichloromethane will evaporate rapidly in a short period of time, and a large amount of dichloromethane will rush into the cooling chamber 702 through the one-way pressure relief pipe 13, causing the pressure inside the cooling chamber 702 to rise instantly. This pressure will exceed the elastic force of the third spring 43, pushing the sliding plate 42 towards the U-shaped frame 27. Consequently, mercury 44 will be pushed along with the sliding plate 42. When mercury 44 detaches from the two conductive plates 45, the photovoltaic energy storage device 2 will lose power, thus providing power outage protection. Since the evaporation of dichloromethane and the sliding plate 42 pushing mercury 44 detach from the conductive plates 45 both require a certain amount of time, the photovoltaic energy storage device 2 will not immediately lose power when an abnormally rapid temperature rise occurs in the first chamber 3 and the second chamber 4. Instead, it will lose power after a delay, which can effectively prevent the photovoltaic energy storage device 2 from experiencing only a brief and rapid temperature rise rather than a deflagration, thereby avoiding accidental power cut-off.

[0051] In this invention, when the photovoltaic energy storage device 2 is in normal use, the hydraulic cylinder 30 extends, causing the mounting block 29 to move upward. Consequently, the two mounting plates 5 rotate toward the U-shaped frame 27 and gradually retract. At this time, the two cross blocks 24 slide toward each other. The cross blocks 24 drive the first compartment 3 and the second compartment 4 to slide toward each other via the connecting rod 25. Finally, the second compartment 4 slides into the first compartment 3, and the photovoltaic energy storage device 2 retracts into an approximately vertical state. This reduces the overall space volume of the device, makes the internal structure more compact, and reduces the floor space occupied.

[0052] When maintenance is required, the hydraulic cylinder 30 can be retracted, causing the mounting block 29 to move downwards. At this time, the two mounting plates 5 rotate to both sides, which in turn causes the two cross blocks 24 to slide away from each other. Consequently, the first compartment 3 and the second compartment 4 will move away from each other until the first hatch 46 and the second hatch 47 open. The photovoltaic energy storage device 2 inside can then be maintained through the first hatch 46 and the second hatch 47. During maintenance, since the mounting plate 5 is in a nearly horizontal state, the loading box 6 will also be in a nearly horizontal state. This ensures that the mercury 44 in the control cavity 422 is located at the bottom of the control cavity 422, and the conductive plate 45 at the top is not submerged by the mercury 44, thus disconnecting the circuit and putting the photovoltaic energy storage device 2 in a power-off state, ensuring the safety of maintenance personnel.

[0053] In addition, when the photovoltaic energy storage device 2 is in normal use, the loading box 6 is in a near-vertical state. At this time, the mercury 44 in the control cavity 422 is located near the bottom of the slide plate 42, so that both conductive plates 45 are submerged, and the circuit is connected, so that the photovoltaic energy storage device 2 is powered on. At this time, the drive motor 34 drives the second rotating shaft 32 to rotate, which in turn drives multiple second fan blades 33 to rotate. Then, the outside air will enter the first chamber 3 and the second chamber 4 through the ventilation port 31 and blow towards the photovoltaic energy storage device 2 to cool it down.

[0054] As the photovoltaic energy storage device 2 operates, it dissipates heat, causing the temperature inside the first chamber 3 and the second chamber 4 to rise. This heat is then transferred to the dichloromethane inside the pressure boosting chamber 701. The dichloromethane absorbs the heat and begins to evaporate. Since the evaporation temperature of dichloromethane is 39.75 degrees Celsius, when the temperature inside the first chamber 3 and the second chamber 4 exceeds 39.75 degrees Celsius, the dichloromethane begins to change from a liquid to a gaseous state, causing the pressure inside the pressure boosting chamber 701 to continuously increase. When the pressure inside the pressure boosting chamber 701 exceeds the pressure of the one-way discharge pipe 1... When the pressure relief valve in section 3 reaches its threshold, gaseous dichloromethane will enter the one-way pressure relief pipe 13 and then the cooling chamber 702. When the dichloromethane flows through the one-way pressure relief pipe 13, since the gaseous dichloromethane has a certain pressure, it will blow multiple impellers 15 to rotate, which in turn drives the rotating rod 14 to rotate, drives the first rotating shaft 10 to rotate, and drives multiple first fan blades 11 to rotate. Under the action of the first fan blades 11, air is blown onto the back of the photovoltaic energy storage device 2, thereby improving the heat dissipation effect and making the heat dissipation more uniform.

[0055] The gaseous dichloromethane entering the cooling chamber 702 will be recooled into a liquid state and stored in the cooling chamber 702. The rotation of the rotating rod 14 will cause the cam 21 to rotate, which, together with the first spring 20, will cause the sliding plug 17 to reciprocate and seal. At this time, the liquid dichloromethane in the cooling chamber 702 will enter the first chamber 16 through the one-way liquid inlet pipe 18. Then, the liquid dichloromethane in the first chamber 16 will flow back to the pressure boosting chamber 701 through the one-way liquid outlet pipe 19. This cycle repeats, and the dichloromethane can be continuously evaporated and refluxed, driving multiple first fan blades 11 to rotate. When the temperature in the first chamber 3 and the second chamber 4 is stable, the evaporation rate of dichloromethane will be stable, thus ensuring uniform and continuous evaporation.

[0056] When the temperature inside the first chamber 3 and the second chamber 4 is higher, the evaporation rate of dichloromethane per unit time will be faster, which in turn will result in a higher pressure in the pressure boosting chamber 701 per unit time. Consequently, the flow rate of gaseous dichloromethane entering the one-way pressure relief pipe 13 will be faster, which in turn will cause the multiple impellers 15 to rotate faster, the rotating rod 14 to rotate faster, the first rotating shaft 10 to rotate faster, and the multiple first fan blades 11 to rotate faster. This results in faster airflow and better heat dissipation. Therefore, the heat dissipation and ventilation effect can be automatically adjusted according to the temperature, making it more intelligent.

[0057] When the impeller 15 rotates faster, it cuts the magnetic field lines faster, resulting in a larger induced current in the induction coil 41. This leads to a larger current flowing into the electromagnet 40, which in turn generates a stronger magnetic repulsion. Consequently, the magnetic plate 36 is further away from the electromagnet 40, reducing the resistance of the resistor strip 38 in the circuit. This results in a larger current flowing into the motor 34, causing the motor 34 to rotate faster. This, in turn, causes the multiple second fan blades 33 to rotate faster, resulting in better airflow and heat dissipation. Therefore, the second fan blades 33 can automatically adjust to the amount of heat generated, achieving optimal heat dissipation without wasting resources.

[0058] When the photovoltaic energy storage device 2 experiences a deflagration, the temperature inside the first chamber 3 and the second chamber 4 will rise rapidly and instantaneously. At this time, dichloromethane will evaporate rapidly in a short period of time, and a large amount of dichloromethane will rush into the cooling chamber 702 through the one-way pressure relief pipe 13, causing the pressure inside the cooling chamber 702 to rise instantly. This pressure will exceed the elastic force of the third spring 43, pushing the sliding plate 42 towards the U-shaped frame 27. Consequently, mercury 44 will be pushed along with the sliding plate 42. When mercury 44 detaches from the two conductive plates 45, the photovoltaic energy storage device 2 will lose power, thus providing power outage protection. Since the evaporation of dichloromethane and the sliding plate 42 pushing mercury 44 detach from the conductive plates 45 both require a certain amount of time, the photovoltaic energy storage device 2 will not immediately lose power when an abnormally rapid temperature rise occurs in the first chamber 3 and the second chamber 4. Instead, it will lose power after a delay, which can effectively prevent the photovoltaic energy storage device 2 from experiencing only a brief and rapid temperature rise rather than a deflagration, thereby avoiding accidental power cut-off.

[0059] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A non-intrusive energy storage cabin for a photovoltaic energy storage system, characterized in that, The utility model relates to a photovoltaic energy storage device with heat dissipation and folding functions, which comprises a base, a photovoltaic energy storage device, a first cabin, a second cabin and a mounting plate. The heat dissipation mechanism comprises a mounting hole formed in the lower end of the mounting plate, the mounting hole penetrates through the mounting plate, the inner wall of the mounting hole is fixedly connected with a horizontal plate, the side wall of the horizontal plate is rotatably connected with a first rotating shaft, the side wall of the first rotating shaft is fixedly connected with a plurality of first fan blades, the lower end of the mounting plate is fixedly connected with a loading box, the inner wall of the loading box is sealingly and fixedly connected with a sealing block, the sealing block divides the inside of the loading box into two parts, i.e., a boosting cavity and a cooling cavity, the boosting cavity is filled with dichloromethane, the boosting cavity is in communication with the cooling cavity through a one-way pressure relief pipe, the inner wall of the one-way pressure relief pipe is provided with a pressure valve, the inner wall of the one-way pressure relief pipe is rotatably connected with a rotating rod, the side wall of the rotating rod is fixedly connected with a plurality of impellers, one end of the rotating rod penetrates through the upper end of the loading box and is fixedly connected with the first rotating shaft. The first cabin and the second cabin are provided with a ventilation mechanism, the ventilation mechanism comprises a ventilation hole formed in the side wall of the first cabin and the second cabin, the inner wall of the ventilation hole is rotatably connected with a second rotating shaft, the side wall of the second rotating shaft is fixedly connected with a plurality of second fan blades, the side wall of the first cabin and the second cabin is fixedly connected with a motor through a support, the output end of the motor is fixedly connected with the second rotating shaft. The mounting plate is provided with a control mechanism, the control mechanism comprises a second cavity formed in the mounting plate, the inner wall of the second cavity is slidingly connected with a magnetic plate, the side wall of the magnetic plate is fixedly connected with a conductive rod, the inner wall of the second cavity is embedded with a resistance strip matched with the conductive rod, the second cavity is fixedly connected with a second spring between the inner wall and the magnetic plate; the control mechanism further comprises an electromagnet fixedly connected to the inner wall of the second cavity, the sealing block is embedded with an induction coil, the induction coil is arranged around the one-way pressure relief pipe, one of the impellers is made of magnetic material, the induction coil and the electromagnet are electrically connected through wires, the conductive rod, the resistance strip, the motor and an external power source are electrically connected through wires. The cooling cavity is provided with a power-off mechanism, the power-off mechanism comprises a sliding plate sealingly and slidingly connected to the inner wall of the cooling cavity, the sliding plate divides the inside of the cooling cavity into a conversion cavity and a control cavity, the sliding plate and the inner wall of the control cavity are fixedly connected with a third spring, the control cavity is filled with mercury, the inner wall of the control cavity is symmetrically embedded with two conductive plates, the photovoltaic energy storage device, the two conductive plates and an external power source are electrically connected through wires. The base is provided with a folding mechanism, the folding mechanism comprises two sliding grooves symmetrically formed in the upper end of the base, the first cabin and the second cabin are slidingly connected to the inner wall of the two sliding grooves, the side wall of the first cabin is provided with a mounting groove, the second cabin is slidingly connected to the inner wall of the mounting groove, the upper end of the base is provided with a cross groove, the inner wall of the cross groove is symmetrically slidingly connected with two cross blocks, the side wall of the two cross blocks is fixedly connected with two connecting rods, the other ends of the two connecting rods are fixedly connected to the inner wall of the first cabin and the second cabin, respectively. The folding mechanism further comprises a U-shaped frame fixedly connected to the upper end of the base, the inner wall of the U-shaped frame is symmetrically provided with two vertical grooves, the inner wall of the two vertical grooves is slidingly connected with a mounting block, one end of the mounting plate is rotatably connected to the side wall of the mounting block, the other end of the mounting plate is rotatably connected to the upper end of the cross block, the mounting plate is fixedly connected with the photovoltaic energy storage device through a plurality of fixed shafts, the inner bottom of the cross groove is fixedly connected with a hydraulic oil cylinder, the movable end of the hydraulic oil cylinder is fixedly connected to the lower end of the mounting block. ​ 2. A non-intrusive energy storage cabin for a photovoltaic energy storage system according to claim 1, wherein, Wherein: The sealing block is provided with a liquid return mechanism, the liquid return mechanism comprises a first cavity formed in the sealing block, a sliding plug is sealingly and slidably connected to the inner wall of the first cavity, the first cavity is communicated with the cooling cavity through a one-way liquid inlet pipe, and the first cavity is communicated with the pressure boosting cavity through a one-way liquid outlet pipe.

3. A non-intrusive energy storage cabin for a photovoltaic energy storage system according to claim 2, wherein, Wherein: The liquid return mechanism further comprises a first spring fixedly connected to the inner wall of the first cavity, one end of the first spring is fixedly connected to the sliding plug, one end of the rotating rod extends into the first cavity and is fixedly connected with a cam, and the side wall of the cam is in sliding abutment with the sliding plug.

4. A non-intrusive energy storage cabin for a photovoltaic energy storage system according to claim 1, wherein, Wherein: The side wall of the first cabin body is symmetrically provided with two first hatches, and the side wall of the second cabin body is symmetrically provided with two second hatches.

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