Non-step-in energy storage cabin of photovoltaic energy storage system

Abstract

The invention discloses a non-step-in energy storage cabin of a photovoltaic energy storage system, which relates to the technical field of photovoltaic energy storage cabins and comprises a base, photovoltaic energy storage equipment, a first cabin body, a second cabin body and a mounting plate, and the heat dissipation mechanism comprises a mounting opening formed in the lower end of the mounting plate, the mounting opening penetrates through the mounting plate, a transverse plate is fixedly connected to the inner wall of the mounting opening, a first rotating shaft is rotationally connected to the side wall of the transverse plate, and a plurality of first fan blades are fixedly connected to the side wall of the first rotating shaft. According to the invention, along with the operation of the photovoltaic energy storage equipment, heat can be dissipated, at the moment, the heat is transmitted to dichloromethane in the pressure boosting cavity, dichloromethane absorbs the heat and starts to evaporate, the liquid state is converted into the gas state, and when the gas state dichloromethane flows through the one-way pressure discharging pipe, multiple impellers can be blown to rotate, and then multiple first fan blades are driven to rotate; and air is blown to the back surface of the photovoltaic energy storage equipment, so that the heat dissipation effect is improved, and heat dissipation is more uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic energy storage cabins, and particularly to a non-walk-in energy storage cabin for a photovoltaic energy storage system. Background Art

[0002] Photovoltaic is short for solar photovoltaic power generation system, which 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, and has two operation modes: independent operation and grid-connected operation.

[0003] At present, the energy storage cabins of photovoltaic energy storage systems have problems such as large floor area, low operation and maintenance safety, and high fire risk. In addition, the energy storage cabins of existing photovoltaic energy storage systems usually use fans for ventilation and heat dissipation. However, there is a problem with ventilation and heat dissipation. The surface of the photovoltaic energy storage device facing the airflow can receive cold air for heat dissipation well, while the back surface is difficult to contact cold air, resulting in uneven heat dissipation. Moreover, the rotation speed of the existing fans is constant, resulting in insufficient heat dissipation effect or resource waste.

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

[0005] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a non-walk-in energy storage cabin for a photovoltaic energy storage system.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A non-walk-in energy storage cabin for a photovoltaic energy storage system, comprising a base, a photovoltaic energy storage device, a first cabin body, a second cabin body and a mounting plate;

[0008] A heat dissipation mechanism, the heat dissipation mechanism includes a mounting opening opened at the lower end of the mounting plate, the mounting opening penetrates through the mounting plate, a cross plate is fixedly connected to the inner wall of the mounting opening, a first rotating shaft is rotatably connected to the side wall of the cross plate, a plurality of 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, a sealing block is hermetically and fixedly connected to the inner wall of the loading box, the sealing block divides the interior of the loading box into two parts: a boosting chamber and a cooling chamber, dichloromethane is filled in the boosting chamber, the boosting chamber is communicated with the cooling chamber through a one-way pressure discharge pipe, a pressure valve is installed on the inner wall of the one-way pressure discharge pipe, a rotating rod is rotatably connected to the inner wall of the one-way pressure discharge pipe, a plurality of impellers are fixedly connected to the side wall of the rotating rod, and one end of the rotating rod penetrates through the upper end of the loading box and is fixedly connected to the first rotating shaft.

[0009] Preferably, a liquid return mechanism is installed on the sealing block. The liquid return mechanism includes a first chamber opened in the sealing block. A sliding plug is hermetically and slidably connected to the inner wall of the first chamber. The first chamber is communicated with the cooling chamber through a one-way liquid inlet pipe, and the first chamber is communicated with the boosting chamber through a one-way liquid discharge pipe.

[0010] Preferably, the liquid return mechanism further includes a first spring fixedly connected to the inner wall of the first chamber. The other end of the first spring is fixedly connected to the sliding plug. One end of the rotating rod extends into the first chamber and is fixedly connected with a cam. The side wall of the cam is slidably abutted against the sliding plug.

[0011] Preferably, a folding mechanism is installed on the base. The folding mechanism includes two chutes symmetrically opened at the upper end of the base. A first cabin and a second cabin are jointly slidably connected to the inner walls of the two chutes. An installation groove is opened on the side wall of the first cabin. The second cabin is slidably connected to the inner wall of the installation groove. A cross groove is opened at the upper end of the base. Two cross blocks are symmetrically and slidably connected to the inner wall of the cross groove. Two connecting rods are fixedly connected to the side walls of the two cross blocks. The other ends of the two connecting rods are respectively fixedly connected to the inner walls of the first cabin and the second cabin.

[0012] Preferably, the folding mechanism further includes a U-shaped frame fixedly connected to the upper end of the base. Two vertical grooves are symmetrically opened on the inner wall of the U-shaped frame. An installation block is jointly slidably connected to the inner walls of the two vertical grooves. One end of the installation plate is rotatably connected to the side wall of the installation block. The other end of the installation plate is rotatably connected to the upper end of the cross block. A photovoltaic energy storage device is jointly fixedly connected to the upper end of the installation plate through a plurality of fixing shafts. A hydraulic cylinder is fixedly connected to the bottom of the cross groove. The movable end of the hydraulic cylinder is fixedly connected to the lower end of the installation block.

[0013] Preferably, a ventilation mechanism is installed on the first cabin and the second cabin. The ventilation mechanism includes ventilation openings opened on the side walls of the first cabin and the second cabin. 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 cabin and the second cabin 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 installation plate. The control mechanism includes a second chamber opened in the installation plate. A magnetic plate is slidably connected to the inner wall of the second chamber. A conductive rod is fixedly connected to the side wall of the magnetic plate. A resistance strip matched with the conductive rod is embedded in the inner wall of the second chamber. A second spring is jointly fixedly connected between the inner wall of the second chamber and the magnetic plate.

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

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

[0017] Preferably, two first hatches are symmetrically opened on the side wall of the first cabin, and two second hatches are symmetrically opened on the side wall of the second cabin.

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

[0019] 1. By providing 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 booster chamber. The dichloromethane will absorb the heat and start to evaporate, changing from a liquid state to a gaseous state. When the gaseous dichloromethane flows through the one-way pressure discharge pipe, it will blow multiple impellers to rotate, and then drive multiple first fan blades to rotate, blowing air on 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 in the first cabin and the second cabin is higher, the evaporation rate of dichloromethane per unit time will be faster. As a result, the pressure in the booster chamber per unit time will be greater, and the flow rate of the gaseous dichloromethane entering the one-way pressure discharge pipe will be faster. Thus, the rotation speed of multiple impellers will be faster, the rotation speed of the rotating rod will be faster, the rotation speed of the first rotating shaft will be faster, and then the rotation speed of multiple first fan blades will be faster, so that the air circulation speed is faster and the heat dissipation effect is better. 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 folding mechanism, when the photovoltaic energy storage device is in normal use, the hydraulic cylinder is driven to extend, driving the mounting block to move upward. As a result, the two mounting plates will rotate towards the U-shaped frame, gradually folding in. At this time, the two cross-shaped blocks will slide closer to each other. The cross-shaped blocks will drive the first cabin and the second cabin to slide closer to each other through the connecting rod. Eventually, the second cabin will slide into the first cabin, and the photovoltaic energy storage device will fold into an approximately vertical state. This can reduce the overall space volume of the device, make the internal structure more compact, and thus reduce the floor area. When maintenance is required, the hydraulic cylinder can be driven to contract, driving the mounting block to move downward. At this time, the two mounting plates will rotate to both sides, driving the two cross-shaped blocks to slide away from each other. Then, the first cabin and the second cabin will move away from each other until the first cabin opening and the second cabin opening are opened, and the internal photovoltaic energy storage device can be maintained through the first cabin opening and the second cabin opening;

[0022] 4. By setting up a control mechanism, when the temperature is higher and the rotational speed of the impeller is faster, the speed of the impeller cutting the magnetic induction line will be faster. As a result, the induced current generated by the induction coil will be larger, the current flowing into the electromagnet will be larger, and the magnetic repulsion force generated by the electromagnet will be larger. This will make the distance between the magnetic plate and the electromagnet farther, and the resistance of the resistance bar connected to the circuit will be smaller. As a result, the current flowing into the motor will be larger, and the rotational speed of the motor will be faster at this time, making the rotational speeds of the multiple second fan blades faster. Thus, the air circulation effect is better, and the heat dissipation effect is better. Therefore, the second fan blades can match the magnitude of the heat generated and automatically change, making the heat dissipation effect reach the best and without wasting resources;

[0023] 5. By setting up a power-off mechanism, when an explosion and combustion occur in the photovoltaic energy storage device, the temperatures inside the first cabin and the second cabin will rise rapidly instantaneously. At this time, dichloromethane will evaporate rapidly in a short time, and a large amount of dichloromethane will rush into the cooling chamber through the one-way pressure discharge pipe in an instant, causing the pressure inside the cooling chamber to rise instantaneously. Then, when it exceeds the elastic force of the third spring, it will push the sliding plate towards the U-shaped frame. As a result, the mercury will be pushed along with the sliding plate. When the mercury separates from the two conductive plates, the photovoltaic energy storage device will power off, thus playing a role in power-off protection. Since the evaporation of dichloromethane and the sliding plate pushing the mercury to separate from the conductive plates both take a certain amount of time, when the temperatures inside the first cabin and the second cabin rise abnormally rapidly, the photovoltaic energy storage device will not power off immediately but will power off with a delay. This can effectively avoid the situation where the photovoltaic energy storage device only has a short-term rapid temperature rise instead of explosion and combustion, and thus avoid mis-cutting the power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of a non-walk-in energy storage cabin of a photovoltaic energy storage system proposed by the present invention;

[0025] Figure 2 is Figure 1 a schematic side view of the structure in

[0026] Figure 3 is Figure 1 a schematic cross-sectional view of the structure in

[0027] Figure 4 is Figure 3 an enlarged schematic view of the structure at position A in

[0028] Figure 5 is Figure 4 an enlarged schematic view of the structure at position B in

[0029] Figure 6 is Figure 4 an enlarged schematic view of the structure at position C in

[0030] In the figure: 1, base; 2, photovoltaic energy storage device; 3, first cabin; 4, second cabin; 5, mounting plate; 6, loading box; 7, sealing block; 701, step-up chamber; 702, cooling chamber; 8, mounting opening; 9, cross 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 discharge pipe; 20, first spring; 21, cam; 22, sliding groove; 23, cross groove; 24, cross block; 25, connecting rod; 26, mounting groove; 27, U-shaped frame; 28, vertical groove; 29, mounting block; 30, hydraulic cylinder; 31, ventilation opening; 32, second rotating shaft; 33, second fan blade; 34, motor; 35, second chamber; 36, magnetic plate; 37, conductive rod; 38, resistance strip; 39, second spring; 40, electromagnet; 41, induction coil; 42, sliding plate; 421, conversion chamber; 422, control chamber; 43, third spring; 44, mercury; 45, conductive plate; 46, first cabin hatch; 47, second cabin hatch. Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0032] Refer to Figure 1 - Figure 6, a non-walk-in energy storage cabin for a photovoltaic energy storage system, comprising a base 1, a photovoltaic energy storage device 2, a first cabin body 3, a second cabin body 4 and a mounting plate 5. Two first hatches 46 are symmetrically opened on the side wall of the first cabin body 3, and two second hatches 47 are symmetrically opened on the side wall of the second cabin body 4;

[0033] A heat dissipation mechanism, which includes a mounting opening 8 opened at the lower end of the mounting plate 5. The mounting opening 8 penetrates through the mounting plate 5. A cross plate 9 is fixedly connected to the inner wall of the mounting opening 8. A first rotating shaft 10 is rotatably connected to the side wall of the cross plate 9. A plurality of 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. A sealing block 7 is hermetically and fixedly connected to the inner wall of the loading box 6. The sealing block 7 divides the interior of the loading box 6 into two parts, namely a boosting chamber 701 and a cooling chamber 702. Dichloromethane is filled in the boosting chamber 701. The boosting chamber 701 is communicated with the cooling chamber 702 through a one-way pressure discharge pipe 13. A pressure valve is installed on the inner wall of the one-way pressure discharge pipe 13. The one-way pressure discharge pipe 13 only allows the dichloromethane in the 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 discharge pipe 13. A plurality of impellers 15 are fixedly connected to the side wall of the rotating rod 14. One end of the rotating rod 14 penetrates 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 part of the loading box 6 surrounding the boosting chamber 701 is made of a heat-conducting material, which can well transfer heat to the dichloromethane. The rest of the loading box 6 is made of a heat-insulating material.

[0035] Furthermore, as the photovoltaic energy storage device 2 operates, it will dissipate heat, causing the temperature in the first cabin body 3 and the second cabin body 4 to rise. At this time, the heat is transferred to the dichloromethane in the boosting chamber 701, and the dichloromethane will absorb heat and start to evaporate. Since the evaporation temperature of dichloromethane is 39.75 degrees Celsius, when the temperature in the first cabin body 3 and the second cabin body 4 exceeds 39.75 degrees Celsius, the dichloromethane begins to change from a liquid state to a gaseous state, causing the pressure in the boosting chamber 701 to continuously increase. When the pressure in the boosting chamber 701 exceeds the threshold of the pressure relief valve in the one-way pressure discharge pipe 13, the gaseous dichloromethane will enter the one-way pressure discharge pipe 13 and then enter the cooling chamber 702. When the dichloromethane flows through the one-way pressure discharge pipe 13, since the gaseous dichloromethane has a certain pressure, it will blow a plurality of impellers 15 to rotate, thereby driving the rotating rod 14 to rotate, driving the first rotating shaft 10 to rotate, driving a plurality of first fan blades 11 to rotate, and then, under the action of the first fan blades 11, blowing air on 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 discharge pipe 13, the dichloromethane converted into gas in the pressure boosting chamber 701 can continuously accumulate and increase the pressure in the pressure boosting chamber 701. Therefore, the threshold value of the pressure relief valve can be set according to actual needs, and then the pressure value in the pressure boosting chamber 701 can be adjusted. Thus, the pressure and flow rate of the gaseous dichloromethane when it enters the one-way pressure discharge pipe 13 can be adjusted, so that the gaseous dichloromethane has sufficient pressure and flow rate to blow the impeller 15 to rotate.

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

[0038] The liquid return mechanism further includes a first spring 20 fixedly connected to the inner wall of the first chamber 16. The other end of the first spring 20 is fixedly connected to the sliding plug 17. One end of the rotating rod 14 extends into the first chamber 16 and is fixedly connected with a cam 21. The side wall of the cam 21 is in sliding contact with the sliding plug 17.

[0039] Furthermore, the gaseous dichloromethane entering the cooling chamber 702 will be re-cooled into a liquid state and stored in the cooling chamber 702. When the rotating rod 14 rotates, the cam 21 rotates. Cooperating with the first spring 20, the sliding plug 17 will 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, and then the liquid dichloromethane in the first chamber 16 will flow back into the pressure boosting chamber 701 through the one-way liquid discharge pipe 19. In this way, the dichloromethane can continuously evaporate and flow back, driving the plurality of first fan blades 11 to rotate. When the temperatures in the first cabin 3 and the second cabin 4 are stable, the evaporation rate of the dichloromethane will be stable, so as to ensure uniform and continuous evaporation.

[0040] It is worth mentioning that when the temperatures in the first cabin 3 and the second cabin 4 are higher, the evaporation rate of the dichloromethane per unit time will be faster. Then, the pressure in the pressure boosting chamber 701 per unit time will be greater. Then, the flow rate of the gaseous dichloromethane entering the one-way pressure discharge pipe 13 will be faster, so that the rotation speeds of the plurality of impellers 15 will be faster, the rotation speed of the rotating rod 14 will be faster, the rotation speed of the first rotating shaft 10 will be faster, and then the rotation speeds of the plurality of first fan blades 11 will be faster, so that the air circulation speed is faster and the heat dissipation effect is better. Therefore, the heat dissipation and ventilation effect can be automatically adjusted according to the temperature, making it more intelligent.

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

[0042] The retracting mechanism further 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. An installation block 29 is jointly slidably connected to the inner walls of the two vertical grooves 28. One end of the installation plate 5 is rotatably connected to the side wall of the installation block 29, and the other end of the installation plate 5 is rotatably connected to the upper end of the cross block 24. The upper end of the installation plate 5 is fixedly connected with a photovoltaic energy storage device 2 through a plurality of fixed shafts. A hydraulic cylinder 30 is fixedly connected to the inner bottom of the cross groove 23, and the movable end of the hydraulic cylinder 30 is fixedly connected to the lower end of the installation block 29.

[0043] Further, when the photovoltaic energy storage device 2 is in normal use, the hydraulic cylinder 30 is driven to extend, driving the installation block 29 to move upward. Then the two installation plates 5 will rotate towards the direction close to the U-shaped frame 27 and gradually retract. At this time, the two cross blocks 24 will slide towards each other. The cross blocks 24 will drive the first cabin 3 and the second cabin 4 to slide towards each other through the connecting rods 25. Finally, the second cabin 4 will slide into the first cabin 3, and the photovoltaic energy storage device 2 will retract into an approximately vertical state. Thus, the space volume of the whole device can be reduced, the internal structure is more compact, and the floor area is reduced. When maintenance is required, the hydraulic cylinder 30 can be driven to contract, driving the installation block 29 to move downward. At this time, the two installation plates 5 rotate to both sides, and then drive the two cross blocks 24 to slide away from each other. Then the first cabin 3 and the second cabin 4 will move away from each other until the first cabin opening 46 and the second cabin opening 47 are opened, and the internal photovoltaic energy storage device 2 can be maintained through the first cabin opening 46 and the second cabin opening 47.

[0044] A ventilation mechanism is installed on the first cabin 3 and the second cabin 4. The ventilation mechanism includes ventilation openings 31 opened on the side walls of the first cabin 3 and the second cabin 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. The side walls of the first cabin 3 and the second cabin 4 are fixedly connected with a motor 34 through a bracket, and the output end of the motor 34 is fixedly connected to the second rotating shaft 32.

[0045] Further, the driving motor 34 drives the second rotating shaft 32 to rotate, and then drives a plurality of second fan blades 33 to rotate. Then, external air will enter the interiors of the first cabin 3 and the second cabin 4 through the ventilation openings 31 and blow towards the photovoltaic energy storage device 2 to cool the photovoltaic energy storage device 2.

[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 sleeved on the side wall of the magnetic plate 36 to play a good insulating role. A resistance strip 38 matched 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 further includes an electromagnet 40 fixedly connected to the inner wall of the second cavity 35. An induction coil 41 is embedded in the sealing block 7. The induction coil 41 is arranged around the one-way pressure discharge pipe 13. One of the impellers 15 is made of a magnetic material. The induction coil 41 and the electromagnet 40 are electrically connected through a wire. The conductive rod 37, the resistance strip 38, the motor 34, and an external power supply are electrically connected through a wire.

[0048] Further, when the temperature is higher and the rotation speed of the impeller 15 is faster, the speed of the impeller 15 cutting the magnetic induction lines will be faster. Then, the induced current generated by the induction coil 41 will be larger, the current flowing into the electromagnet 40 will be larger, and then the magnetic repulsive force generated by the electromagnet 40 will be larger, making the distance between the magnetic plate 36 and the electromagnet 40 farther. Then, the resistance of the resistance strip 38 connected to the circuit will be smaller, making the current flowing into the motor 34 larger. Then, the rotation speed of the motor 34 at this time will be faster, making the rotation speeds of the plurality of second fan blades 33 faster, so that the air circulation effect is better and the heat dissipation effect is better. Therefore, the second fan blades 33 can match the magnitude of the generated heat and automatically change, making the heat dissipation effect reach the best and no resource waste will occur.

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

[0050] Furthermore, when the photovoltaic energy storage device 2 explodes and burns, the temperature inside the first cabin 3 and the second cabin 4 will rise rapidly instantaneously. At this time, dichloromethane will evaporate rapidly in a short time, and a large amount of dichloromethane will instantaneously rush into the cooling chamber 702 through the one-way pressure discharge pipe 13, causing the pressure inside the cooling chamber 702 to rise instantaneously, and then exceeding the elastic force of the third spring 43, which will push the sliding plate 42 to move towards the U-shaped frame 27. Furthermore, the mercury 44 will be pushed together with the sliding plate 42. When the mercury 44 separates from the two conductive plates 45, the photovoltaic energy storage device 2 will cut off the power supply, thus playing a role in power-off protection. Since the evaporation of dichloromethane and the sliding plate 42 pushing the mercury 44 to separate from the conductive plate 45 both take a certain amount of time, when the temperature inside the first cabin 3 and the second cabin 4 rises abnormally rapidly, the photovoltaic energy storage device 2 will not cut off the power supply immediately, but will cut off the power supply with a delay, thereby effectively avoiding the situation where the photovoltaic energy storage device 2 only has a short-term rapid temperature rise instead of explosion and combustion, and further avoiding mis-cutting the power supply.

[0051] In the present invention, when the photovoltaic energy storage device 2 is in normal use, the hydraulic cylinder 30 is driven to extend, driving the mounting block 29 to move upward. Furthermore, the two mounting plates 5 will rotate towards the U-shaped frame 27, gradually closing in. At this time, the two cross blocks 24 will slide towards each other. The cross block 24 will drive the first cabin 3 and the second cabin 4 to slide towards each other through the connecting rod 25. Finally, the second cabin 4 will slide into the first cabin 3, and the photovoltaic energy storage device 2 will be folded into an approximately vertical state, thereby reducing the spatial volume of the entire device, making the internal structure more compact, and further reducing the floor area.

[0052] When maintenance is required, the hydraulic cylinder 30 can be driven to contract, driving the mounting block 29 to move downward. At this time, the two mounting plates 5 rotate to both sides, and then drive the two cross blocks 24 to slide away from each other. Furthermore, the first cabin 3 and the second cabin 4 will move away from each other until the first cabin opening 46 and the second cabin opening 47 are opened, and then the internal photovoltaic energy storage device 2 can be maintained through the first cabin opening 46 and the second cabin opening 47. And during maintenance, since the mounting plate 5 is in an approximately horizontal state, the loading box 6 will also be in an approximately horizontal state, making the mercury 44 in the control chamber 422 located at the bottom of the control chamber 422. Furthermore, the conductive plate 45 located in the upper part is not submerged by the mercury 44, causing the circuit to be disconnected, and then the photovoltaic energy storage device 2 is 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 an approximately vertical state. At this time, the mercury 44 in the control cavity 422 is located near the bottom of the slide plate 42, causing both conductive plates 45 to be immersed. As a result, the circuit is connected, enabling the photovoltaic energy storage device 2 to be powered on and used. At this time, the drive motor 34 is driven to rotate the second rotating shaft 32, which in turn drives multiple second fan blades 33 to rotate. Then, the external air will enter the interior of the first cabin 3 and the second cabin 4 through the ventilation openings 31 and blow towards the photovoltaic energy storage device 2 to cool the photovoltaic energy storage device 2.

[0054] As the photovoltaic energy storage device 2 operates, it will dissipate heat, causing the temperature in the first cabin 3 and the second cabin 4 to rise. At this time, the heat is transferred to the dichloromethane in the pressure boosting cavity 701, and the dichloromethane will absorb heat and start to evaporate. Since the evaporation temperature of dichloromethane is 39.75 degrees Celsius, when the temperature in the first cabin 3 and the second cabin 4 exceeds 39.75 degrees Celsius, the dichloromethane begins to change from a liquid state to a gaseous state, causing the pressure in the pressure boosting cavity 701 to continuously increase. When the pressure in the pressure boosting cavity 701 exceeds the threshold of the pressure relief valve in the one-way pressure discharge pipe 13, the gaseous dichloromethane will enter the one-way pressure discharge pipe 13 and then enter the cooling cavity 702. When the gaseous dichloromethane flows through the one-way pressure discharge pipe 13, due to the fact that the gaseous dichloromethane has a certain pressure, it will drive 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. Then, under the action of the first fan blades 11, the back surface of the photovoltaic energy storage device 2 is blown, thereby improving the heat dissipation effect and making the heat dissipation more uniform.

[0055] The gaseous dichloromethane that enters the cooling cavity 702 will be recooled into a liquid state and stored in the cooling cavity 702. The rotation of the rotating rod 14 will cause the cam 21 to rotate. In cooperation with the first spring 20, the sliding plug 17 will reciprocate and seal. At this time, the liquid dichloromethane in the cooling cavity 702 will enter the first cavity 16 through the one-way liquid inlet pipe 18, and then the liquid dichloromethane in the first cavity 16 will flow back into the pressure boosting cavity 701 through the one-way liquid discharge pipe 19. In this way, the dichloromethane can continuously evaporate and flow back, driving multiple first fan blades 11 to rotate. When the temperature in the first cabin 3 and the second cabin 4 is stable, the evaporation rate of the dichloromethane will be stable, thereby ensuring uniform and continuous evaporation.

[0056] When the temperatures inside the first cabin 3 and the second cabin 4 are higher, the evaporation rate of dichloromethane per unit time will be faster. As a result, the pressure inside the pressure boosting chamber 701 per unit time will be greater. Consequently, the flow rate of the gaseous dichloromethane entering the one-way pressure discharge pipe 13 will be faster, causing the rotation speeds of the multiple impellers 15 to be faster. The rotation speed of the rotating rod 14 will be faster, making the rotation speed of the first rotating shaft 10 faster. Further, the rotation speeds of the multiple first fan blades 11 will be faster, thus making the air circulation speed faster and the heat dissipation effect better. Therefore, the heat dissipation and ventilation effect can be automatically adjusted according to the temperature, making it more intelligent.

[0057] When the rotation speed of the impeller 15 is faster, the speed at which the impeller 15 cuts the magnetic induction lines will be faster. As a result, the induced current generated by the induction coil 41 will be greater. The current flowing into the electromagnet 40 will be greater, and thus the magnetic repulsion force generated by the electromagnet 40 will be greater. This causes the distance between the magnetic plate 36 and the electromagnet 40 to be farther. Consequently, the resistance of the resistance bar 38 connected to the circuit will be smaller, making the current flowing into the motor 34 greater. At this time, the rotation speed of the motor 34 will be faster, causing the rotation speeds of the multiple second fan blades 33 to be faster. Therefore, the air circulation effect is better and the heat dissipation effect is better. Thus, the second fan blades 33 can match the magnitude of the heat generated and change automatically, achieving the best heat dissipation effect without wasting resources.

[0058] When the photovoltaic energy storage device 2 explodes and burns, the temperatures inside the first cabin 3 and the second cabin 4 will rise rapidly instantaneously. At this time, dichloromethane will evaporate rapidly in a short period. A large amount of dichloromethane will instantaneously rush into the cooling chamber 702 through the one-way pressure discharge pipe 13, causing the pressure inside the cooling chamber 702 to rise instantaneously. This pressure will then exceed the elastic force of the third spring 43 and push the sliding plate 42 to move towards the U-shaped frame 27. Consequently, the mercury 44 will be pushed along with the sliding plate 42. When the mercury 44 separates from the two conductive plates 45, the photovoltaic energy storage device 2 will cut off the power supply, thus playing a role in power-off protection. Since the evaporation of dichloromethane and the sliding plate 42 pushing the mercury 44 to separate from the conductive plate 45 both take a certain amount of time, when the temperatures inside the first cabin 3 and the second cabin 4 rise abnormally rapidly, the photovoltaic energy storage device 2 will not cut off the power supply immediately but will cut off the power supply with a delay. This can effectively prevent the situation where the photovoltaic energy storage device 2 only has a short-term rapid temperature rise instead of explosion and burning, and thus avoid mis-cutting the power supply.

[0059] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A non-walk-in energy storage cabin of a photovoltaic energy storage system, characterized in that: include: A base (1), a photovoltaic energy storage device (2), a first cabin (3), a second cabin (4) and a mounting plate (5); The heat dissipation mechanism comprises a mounting opening (8) provided at the lower end of the mounting plate (5), the mounting opening (8) being arranged to penetrate the mounting plate (5), the inner wall of the mounting opening (8) being fixedly connected to a transverse plate (9), the side wall of the transverse plate (9) being rotatably connected to a first rotating shaft (10), the side wall of the first rotating shaft (10) being fixedly connected to a plurality of first fan blades (11), the lower end of the mounting plate (5) being fixedly connected to a loading box (6), the inner wall of the loading box (6) being sealed and fixedly connected to a sealing block (7), the sealing block (7) sealing the loading box (6) ) is divided into two parts, a boosting chamber (701) and a cooling chamber (702), the boosting chamber (701) being filled with dichloromethane, the boosting chamber (701) being connected to the cooling chamber (702) via a one-way pressure relief pipe (13), a pressure valve being installed on the inner wall of the one-way pressure relief pipe (13), a rotating rod (14) being rotatably connected to the inner wall of the one-way pressure relief pipe (13), a plurality of impellers (15) being fixedly connected to the side wall of the rotating rod (14), one end of the rotating rod (14) passing through the upper end of the loading box (6) and being fixedly connected to the first rotating shaft (10).

2. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 1, characterized in that: in: A liquid return mechanism is installed on the sealing block (7), the liquid return mechanism comprising a first chamber (16) opened in the sealing block (7), a sliding plug (17) being sealingly slidably connected to the inner wall of the first chamber (16), the first chamber (16) being connected to the cooling chamber (702) via a one-way liquid inlet pipe (18), and the first chamber (16) being connected to the boost chamber (701) via a one-way liquid discharge pipe (19).

3. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 2, characterized in that: in: The liquid return mechanism further comprises a first spring (20) fixedly connected to the inner wall of the first chamber (16), the other end of the first spring (20) being fixedly connected to the sliding plug (17), one end of the rotating rod (14) extending into the first chamber (16) and being fixedly connected to a cam (21), the side wall of the cam (21) slidingly abutting against the sliding plug (17).

4. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 1, characterized in that: in: The base (1) is provided with a folding mechanism, the folding mechanism comprising two slide grooves (22) symmetrically arranged at the upper end of the base (1), the inner walls of the two slide grooves (22) being slidably connected to the first cabin (3) and the second cabin (4), the side wall of the first cabin (3) being provided with a mounting groove (26), the second cabin (4) being slidably connected to the inner wall of the mounting groove (26), the upper end of the base (1) being provided with a cross groove (23), the inner wall of the cross groove (23) being symmetrically slidably connected to two cross blocks (24), the side walls of the two cross blocks (24) being fixedly connected to two connecting rods (25), the other ends of the two connecting rods (25) being fixedly connected to the inner walls of the first cabin (3) and the second cabin (4), respectively.

5. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 4, characterized in that: in: The folding mechanism further comprises a U-shaped frame (27) fixedly connected to the upper end of the base (1); the inner wall of the U-shaped frame (27) is symmetrically provided with two vertical grooves (28); the inner walls of the two vertical grooves (28) are slidably connected to a mounting block (29); one end of the mounting plate (5) is rotatably connected to a side wall of the mounting block (29); 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) via a plurality of fixed shafts; the inner bottom of the cross groove (23) is fixedly connected to a hydraulic cylinder (30); the movable end of the hydraulic cylinder (30) is fixedly connected to the lower end of the mounting block (29).

6. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 2, characterized in that: in: A ventilation mechanism is installed on the first cabin (3) and the second cabin (4), and the ventilation mechanism includes a ventilation hole (31) opened on the side wall of the first cabin (3) and the second cabin (4), the inner wall of the ventilation hole (31) is rotatably connected to a second rotating shaft (32), and the side wall of the second rotating shaft (32) is fixedly connected to a plurality of second fan blades (33), and the side walls of the first cabin (3) and the second cabin (4) are fixedly connected to a motor (34) via a bracket, and the output end of the motor (34) is fixedly connected to the second rotating shaft (32).

7. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 6, characterized in that: in: A control mechanism is mounted on the mounting plate (5), the control mechanism comprising a second cavity (35) opened in the mounting plate (5), a magnetic plate (36) being slidably connected to the inner wall of the second cavity (35), a conductive rod (37) being fixedly connected to the side wall of the magnetic plate (36), a resistor bar (38) matching the conductive rod (37) being embedded in the inner wall of the second cavity (35), and a second spring (39) being fixedly connected between the inner wall of the second cavity (35) and the magnetic plate (36).

8. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 7, characterized in that: in: The control mechanism further comprises an electromagnet (40) fixedly connected to the inner wall of the second chamber (35); an induction coil (41) is embedded in the sealing block (7); the induction coil (41) is arranged around the one-way pressure discharge pipe (13); one of the impellers (15) is made of magnetic material; the induction coil (41) and the electromagnet (40) are electrically connected via a wire; and the conductive rod (37), the resistor bar (38), the motor (34) and the external power supply are electrically connected via a wire.

9. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 1, characterized in that: in: A power-off mechanism is installed in the cooling chamber (702), the power-off mechanism comprising a slide plate (42) sealed and slidably connected to the inner wall of the cooling chamber (702), the slide plate (42) dividing the interior of the cooling chamber (702) into a conversion chamber (421) and a control chamber (422), a third spring (43) being fixedly connected between the slide plate (42) and the inner wall of the control chamber (422), the interior of the control chamber (422) being filled with mercury (44), two conductive plates (45) being symmetrically embedded in the inner wall of the control chamber (422), and the photovoltaic energy storage device (2) and the two conductive plates (45) being electrically connected via a wire.

10. The non-walk-in energy storage cabin of a photovoltaic energy storage system according to claim 1, characterized in that: in: The first cabin body (3) has two first hatches (46) symmetrically formed on its side wall, and the second cabin body (4) has two second hatches (47) symmetrically formed on its side wall.

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