An intelligent box-type substation with integrated photovoltaic and energy storage

Abstract

The present application discloses a photovoltaic storage integrated intelligent box-type substation, which includes a frame, a photovoltaic device arranged in the frame, and a protective device for protecting the photovoltaic device; the protective device includes a protective frame, an automatically opened / closed folding mechanism, and a defusing mechanism for defusing freezing rain on the folding mechanism; the folding mechanism includes two folding doors and a power assembly for realizing simultaneous opening or closing of the two folding doors. The present application has the effect of improving the utilization rate of energy, and can ensure that the substation can operate normally in a harsh freezing rain environment.

Description

Technical Field

[0001] The present application relates to the field of substations, and in particular to an intelligent box-type substation with integrated photovoltaic and energy storage. Background Art

[0002] At present, box-type substations generally include solar panels, inverters, distribution transformers, cables, connectors, control systems and auxiliary equipment. During installation, cables and connectors are used to arrange solar panels, inverters, distribution transformers, control systems and auxiliary equipment according to a certain wiring scheme. After the various mechanisms are organically combined, they are installed in a fully enclosed and movable box structure. The application principle of box-type substations is: solar energy is converted into DC power through solar panels, and DC power is converted into low-voltage AC power through inverters to meet the needs of household or industrial and commercial power systems. Then, low-voltage AC power is converted into high-voltage AC power through distribution transformers to reduce transmission losses and realize long-distance energy transmission. Then, high-voltage AC power is connected to the box-type substation, and the box-type substation converts the high-voltage AC power into current suitable for users to supply nearby equipment. However, the box-type substations in the prior art are mostly compact power distribution equipment used outdoors, with a simple structure. Solar panels are randomly placed at a high place with sufficient sunlight. In order to better receive the energy of sunlight, solar panels are often built in unobstructed places. Rainwater will accumulate in the grooves of the solar panels, or rainwater will creep into the box-type substation along the cables, causing the solar panels to be eroded by rainwater, affecting the performance of various mechanisms of the box-type substation, and the safety of users when using the substation is low.

[0003] In the related technology, a Chinese patent with patent publication number CN118040507A proposes an integrated photovoltaic and storage intelligent box-type substation, which includes: a frame; a triangular cover plate, which is rotatably connected to the top of the frame, the triangular cover plate includes a mounting surface and a rain shield surface, when the mounting surface of the triangular cover plate faces the inside of the frame, the triangular cover plate completely covers the frame, and the triangular cover plate is a transparent plate; a double-sided solar panel, which is detachably mounted on the mounting surface; a rotating mechanism, which is fixed to a side of the frame close to the triangular cover plate, and the output end of the rotating mechanism is assembled with the triangular cover plate, and the rotating mechanism is used to control the triangular cover plate to automatically convert from the mounting surface to the rain shield surface, or automatically convert from the rain shield surface to the mounting surface, which can improve the waterproof performance of the box-type substation.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: when photovoltaics are needed to absorb sunlight, the triangular cover needs to be flipped 180°, the entire device is troublesome to rotate and the load during the rotation process is also large, which results in inconvenient operation. In addition, when encountering freezing rain weather, the flipping of the triangular cover cannot be automatically unlocked, resulting in the inability to use the substation normally in bad weather. Summary of the invention

[0005] In order to improve the problem of inconvenient operation and inability to operate normally in bad weather, the present application provides an integrated photovoltaic and storage intelligent box-type substation.

[0006] The present application provides a photovoltaic and energy storage integrated intelligent box-type substation adopts the following technical solutions: A photovoltaic-storage integrated intelligent box-type substation, comprising a frame, a photovoltaic device arranged in the frame, and a protective device for protecting the photovoltaic device; The protection device includes a protection frame, an automatically opened / closed folding mechanism, and a defusing mechanism for defusing freezing rain on the folding mechanism; The folding mechanism comprises two folding doors and a power assembly for realizing simultaneous opening or closing of the two folding doors.

[0007] Optionally, the folding door includes a base plate, a movable plate and a plurality of hinges, the base plate is rotatably connected to the protective frame, one side of the movable plate is rotatably connected to the movable end of the base plate via a plurality of hinges, and the other end of the movable plate is movably connected to the protective frame via the power assembly.

[0008] Optionally, the power assembly includes a limit block, two sliding members and a driving part for realizing the movement of the two sliding members toward / away from each other, the sliding member is rotatably connected to the movable side of the movable plate, the sliding member and the movable plate, the hinge, and the rotation axis between the base plate and the protective frame are arranged in parallel and are perpendicular to the length direction of the limit block, and the sliding member is slidably arranged on the limit block.

[0009] Optionally, the driving part includes two driving rollers, a driving motor, a driving belt and a connecting group for connecting the sliding member and the driving belt. The driving roller is rotatably arranged on the protective frame and the driving motor is used to control the rotation of any one of the driving rollers. The driving belt is sleeved outside the two driving rollers.

[0010] Optionally, the defrosting mechanism includes a telescopic rod, an ice-melting component arranged in the telescopic rod, and a detection component for detecting the ice-melting situation. The telescopic rod includes a bottom rod, a movable rod, and a reciprocating part for realizing the reciprocating motion of the movable rod. The bottom rod is fixed on the protective frame, and the movable rod is slidably arranged in the bottom rod.

[0011] Optionally, the ice melting assembly includes a water receiving chamber, a heating unit for heating the water receiving chamber, and a control unit for controlling the opening and closing of the water receiving chamber. The top of the water receiving chamber is opened, the water receiving chamber is provided with a downpipe, a first solenoid valve is provided on the downpipe, the opening of the downpipe is close to the folding door, the bottom rod and the telescopic rod are both provided with water receiving chambers, and the side of the protective frame close to the downpipe is higher than the other side.

[0012] Optionally, the heating part includes a heating pipe, a water inlet, a second solenoid valve and a reaction group that reacts with water to generate a large amount of heat, the water inlet is arranged on the bottom side wall of the heating pipe, the second solenoid valve is arranged on the water inlet, and the heating pipe is fixed in the water receiving chamber.

[0013] Optionally, the reaction group includes a water level sensor, a reaction chamber, a lifting rod lifted in the reaction chamber, a non-woven bag movably arranged in the reaction chamber, a reaction plate and a torsion spring, the reaction chamber is arranged above the heating tube, the water level sensor is arranged in the heating tube and below the reaction chamber, the water level sensor is electrically connected to the first solenoid valve, the non-woven bag is filled with quicklime, the reaction chamber is provided with an inlet connected to the space of the heating tube for storing water, the reaction plate is hinged at the inlet and connected to the bottom of the reaction chamber through a torsion spring, and the lifting rod pushes open the reaction plate when passing through the inlet.

[0014] Optionally, the connection group includes a connecting rod, a push pin, a first electromagnet, a second electromagnet, and a connecting electric push rod for realizing reciprocating motion of the first electromagnet, the connecting rod is provided with a connecting hole for driving a belt to pass through, the push pin is elastically arranged above the connecting hole, the connecting hole is provided with a push hole adapted to the push pin, the first electromagnet slides above the push pin through the connecting electric push rod, the second electromagnet is arranged in the push hole and adsorbs the bottom end of the push pin, and the first electromagnet adsorbs the top end of the push pin.

[0015] Optionally, the detection assembly includes a slider, a detection block, a detection cavity, a force plate and a detection spring. The detection cavity is arranged in the limit block. A sliding groove for sliding the slider is arranged on one side of the detection cavity. The detection block slides in the detection cavity. The slider is used to connect the detection block and the sliding member. The force plate is movably arranged in the detection cavity. The two ends of the detection spring are respectively fixedly connected to the detection block and the force plate.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. When encountering rainy weather, the folding door needs to be closed. At this time, the driving motor is controlled to control the driving roller to rotate. Under the action of the driving belt, the two sliding members move in the direction of approaching each other, and the movable plate follows the sliding member to move in the direction of being in the same plane as the bottom plate. Under the action of the loose-leaf, the rotating connection between the movable plate and the sliding member, and the rotating connection between the bottom plate and the protective frame, the movable plate moves to a position in the same plane as the bottom plate, thereby achieving the closing effect of the folding door. Similarly, the other folding door is also in the state of closing. The movable sides of the two adjacent movable plates abut against each other, completing the protection effect of the photovoltaic device; similarly, by controlling the two sliding members to move in the direction of moving away from each other, the protection effect of the photovoltaic device can be achieved; 2. When it is necessary to push the non-woven bag into the heating pipe, it is only necessary to control the movement of the winding rope and move the non-woven bag to the top of the entrance. The lifting rod pushes the non-woven bag into the entrance. When the non-woven bag enters the water in the heating pipe, the heating pipe and the water receiving chamber perform heat exchange. Why is the heating device such as Hot Fast not selected in this embodiment? The main reason is that the energy storage of solar energy conversion into electric energy in this application is not enough. Therefore, if the resistance heating method is adopted, a large amount of electricity is consumed. In order to avoid affecting the normal operation of other power equipment, a chemical reaction is selected in this embodiment to obtain hot water, and as long as the non-woven bag is continuously added to the heating pipe, the heating pipe will continuously perform heat exchange with the hot water in the water receiving chamber until the hot water in the water receiving chamber can melt the ice. When the heat exchange is completed, the first solenoid valve on the water pipe is controlled to open, and the hot water flows from the water receiving chamber to the folding door position. In addition, the heating pipe is set in this embodiment to keep the product sodium hydroxide in the heating pipe so as not to affect the normal use of the folding door. As the hot water continues to flow out, the freezing rain at the corresponding position can be melted; 3. When the folding door is in a closed state, the detection block and the slider move with the sliding member, and the detection spring is stretched and deformed. In order to determine whether the folding door has successfully defrosted the freezing rain, the connection between the contact drive belt and the sliding member is contacted at this time, that is, the sliding member moves along the length direction of the belt. At this time, the control connection electric push rod controls the ejector pin to move away from the ejector hole and the second electromagnet releases the ejector pin. Under the elastic force of the detection spring, the folding door can be opened automatically if the defrosting is completed. Of course, the force plate can also move in the detection cavity through the electric push rod, so that the elastic force of the detection spring is greater, further ensuring the accuracy of the detection. If the limit of the detection spring is reached and the folding door still cannot be opened, it proves that the freezing rain needs to be further dissolved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a top view of an embodiment of the present application; Figure 3 is a schematic diagram of an ice melting assembly in an embodiment of the present application; Figure 4 yes Figure 2 Enlarged view of point A in the middle; Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0018] Figure numerals: 1, frame; 2, photovoltaic device; 3, protective frame; 4, folding door; 5, bottom plate; 6, movable plate; 7, hinge; 8, limit block; 9, sliding member; 10, driving roller; 11, driving belt; 12, bottom rod; 13, movable rod; 14, water receiving chamber; 15, downpipe; 16, first solenoid valve; 17, heating pipe; 18, water inlet; 19, second solenoid valve; 20, water level sensor; 21, reaction chamber; 22, lifting rod; 23, non-woven bag; 24, reaction plate; 25, torsion spring; 26, inlet; 27, connecting rod; 28, ejector pin; 29, first electromagnet; 30, second electromagnet; 31, connecting electric push rod; 32, top hole; 33, slider; 34, detection block; 35, detection chamber; 36, force plate; 37, detection spring; 38, winding roller; 39, control board. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-5 This application is described in further detail.

[0020] The present application embodiment discloses a photovoltaic and energy storage integrated intelligent box-type substation. Figure 1-Figure 5 A photovoltaic storage integrated intelligent box-type substation includes a frame 1, a photovoltaic device 2 arranged in the frame 1, and a protective device for protecting the photovoltaic device 2; the photovoltaic device 2 can be a device for converting solar energy into electrical energy in the prior art, and the protective device is used to protect the photovoltaic panel; the protective device includes a protective frame 3, an automatically opened / closed folding mechanism, and a defusing mechanism for the folding mechanism to defuse freezing rain; the embodiment of the present application uses a foldable folding mechanism to protect the photovoltaic panel, which can be unfolded to protect the photovoltaic panel when it rains, and needs to be unfolded to protect the photovoltaic panel when it is sunny; however, when encountering severe weather such as freezing rain, the folding position needs to be melted first before it can be unfolded or closed.

[0021] The folding mechanism includes two folding doors 4 and a power component for realizing the simultaneous opening or closing of the two folding doors 4. The folding doors 4 are symmetrically arranged relative to the symmetric plane of the frame 1. In this embodiment, two folding doors 4 are arranged to protect the photovoltaic panel, that is, the folding door 4 can completely protect the frame 1. The folding door 4 includes a bottom plate 5, a movable plate 6 and a plurality of hinges 7. The bottom plate 5 is rotatably connected to the protective frame 3. One side of the movable plate 6 is rotatably connected to the movable end of the bottom plate 5 through a plurality of hinges 7. The other end of the movable plate 6 is movably connected to the protective frame 3 through a power component. The upper and lower ends of one side of the bottom plate 5 are both rotatably connected to the protective frame 3. Only the upper end of one side of the movable plate 6 is connected to the power component, that is, the lower end of this side of the movable plate 6 is movably arranged.

[0022] The power assembly includes a limit block 8, two sliding members 9 and a driving unit for realizing the movement of the two sliding members 9 toward / away from each other. The sliding member 9 is rotatably connected to the movable side of the movable plate 6. The sliding member 9 and the movable plate 6, the hinge and the rotation axis between the bottom plate 5 and the protective frame 3 are arranged in parallel and are perpendicular to the length direction of the limit block 8. The sliding member 9 is slidably arranged on the limit block 8; the limit block 8 and the driving unit are both arranged in the protective frame 3, and the driving unit and the limit block 8 are also protected by the folding door 4. The sliding member 9 is slidably sleeved outside the limit block 8, and the length direction of the limit block 8 is the folding direction of the folding door 4. The upper end of the movable side of the movable plate 6 is rotatably connected to the sliding member 9.

[0023] The driving part includes two driving rollers 10, a driving motor, a driving belt 11 and a connecting group for connecting the sliding member 9 and the driving belt 11. The driving roller 10 is rotatably arranged on the protective frame 3 and the driving motor is used to control the rotation of any one of the driving rollers 10. The driving belt 11 is sleeved outside the two driving rollers 10. The driving roller 10 is also arranged on the inner side of the folding door 4. The axial direction of the driving roller 10 is perpendicular to the length direction of the limit block 8. The limit block 8 is arranged parallel to the length direction of the side wall corresponding to the protective frame 3. The driving belt 11 and the driving roller 10 adopt the structure of a synchronous wheel and a synchronous belt in this embodiment. The connecting group is used to fix the sliding member 9 to the driving belt 11, and in this embodiment, the two sliding members 9 are respectively fixedly connected to the upper and lower ends of the driving belt 11, so that the two sliding members 9 can move towards or away from each other.

[0024] When it rains, the folding door 4 needs to be closed. At this time, the driving roller 10 is controlled to rotate by controlling the driving motor. Under the action of the driving belt 11, the two sliding members 9 move in the direction of approaching each other, and the movable plate 6 follows the sliding member 9 to move in the direction of being in the same plane as the bottom plate 5. Under the action of the loose-leaf, the rotating connection between the movable plate 6 and the sliding member 9, and the rotating connection between the bottom plate 5 and the protective frame 3, the movable plate 6 moves to a position in the same plane as the bottom plate 5, thereby achieving the closing effect of the folding door 4. Similarly, the other folding door 4 is also in the state of closing two, and the movable sides of the two adjacent movable plates 6 abut against each other, thereby completing the protection effect on the photovoltaic device 2; similarly, by controlling the two sliding members 9 to move in the direction of moving away from each other, the protection effect on the photovoltaic device 2 can be achieved.

[0025] When encountering freezing rain weather, in order to ensure the normal opening of the folding door 4, in this embodiment, the contact position of the two movable plates 6 and the position of the hinge are set. If they can dissolve the freezing rain, the folding door 4 can be automatically closed and opened. Of course, the position of the bottom plate 5 can also be set to dissolve the freezing rain, and the position of the corresponding dissolving mechanism to dissolve the freezing rain also needs to be adjusted; the dissolving mechanism includes a telescopic rod, an ice-melting component arranged in the telescopic rod, and a detection component for detecting the ice-melting situation. The telescopic rod includes a bottom rod 12, a movable rod 13, and a reciprocating part for realizing the reciprocating movement of the movable rod 13. The bottom rod 12 is fixed on the protective frame 3, and the movable rod 13 is slidably arranged in the bottom rod 12. The reciprocating part is set as a reciprocating electric push rod. The bottom rod 12 is provided with an active hole for the movement of the movable rod 13, and the reciprocating electric push rod is arranged in the active hole, thereby realizing the automatic telescopic effect of the movable rod.

[0026] The ice melting assembly includes a water receiving chamber 14, a heating unit for heating the water receiving chamber 14, and a control unit for controlling the opening and closing of the water receiving chamber 14. The top of the water receiving chamber 14 is open, and the water receiving chamber 14 is provided with a downpipe 15, and the downpipe 15 is provided with a first solenoid valve 16. The side of the protective frame 3 close to the downpipe 15 is higher than the other side, that is, the hot water flowing out of the downpipe 15 gradually flows to the other end of the protective frame 3 along the hinge 7 under the action of gravity, and the opening of the downpipe 15 is close to The folding door 4, the bottom rod 12 and the telescopic rod are all provided with a water receiving chamber 14. The opening of the downpipe 15 is opposite to the hinge of the folding door 4 and the movable side of the movable plate 6. The upper end of the water receiving box is opened. The control part includes a control panel 39 and a control electric push rod. The area of ​​the control panel 39 is larger than the size of the water receiving chamber 14. The control electric push rod is used to realize the reciprocating motion of the control panel 39. When encountering rainy or snowy weather, the control panel 39 moves to a position away from the water receiving chamber 14. The water receiving chamber 14 is used to receive rainwater.

[0027] The heating part includes a heating tube 17, a water inlet 18, a second solenoid valve 19 and a reaction group that reacts with water to generate a large amount of heat. The water inlet 18 is arranged on the bottom side wall of the heating tube 17, and the second solenoid valve 19 is arranged on the water inlet 18. The heating tube 17 is fixed in the water receiving chamber 14, and the water in the water receiving chamber 14 enters the heating tube 17 from the water inlet 18; the reaction group includes a water level sensor 20, a reaction chamber 21, a lifting rod 22 that is lifted and lowered in the reaction chamber 21, a non-woven bag 23 that is movably arranged in the reaction chamber 21, a reaction plate 24 and a torsion spring 25. The reaction chamber 21 is arranged above the heating tube 17, the water level sensor 20 is arranged in the heating tube 17 and is located below the reaction chamber 21, the water level sensor 20 is electrically connected to the first solenoid valve 16, the non-woven bag 23 is filled with quicklime, and the reaction chamber 21 is provided with a space for storing water with the heating tube 17 The reaction plate 24 is hinged at the inlet 26 and is connected to the bottom of the reaction chamber 21 through the torsion spring 25. The reaction plate 24 is pushed open when the lifting rod 22 passes through the inlet 26. In this embodiment, it is necessary to control the water in the heating tube 17 not to exceed the position of the water level sensor 20, that is, to ensure that water does not enter the reaction chamber 21 from the inlet 26. The lifting and lowering of the lifting rod 22 is also achieved by an electric push rod. The axis direction of the hinge axis between the reaction plate 24 and the heating tube 17 is horizontally set. When the torsion spring 25 is in the original shape, the reaction plate 24 blocks the inlet 26. When the lifting rod 22 extends into the inlet 26 and passes through the inlet 26, the reaction plate 24 moves away from the inlet 26 and the torsion spring 25 is in a deformed state. As long as the lifting rod 22 moves into the reaction chamber 21, the reaction plate 24 moves to block the inlet 26 under the elastic force of the torsion spring 25.

[0028] Two winding rollers 38, two winding motors and a winding rope are arranged in the reaction chamber 21, and the non-woven bag 23 is fixed on the winding rope. The winding roller 38 is rotatably arranged in the reaction chamber 21 and the axial direction of the winding roller 38 is perpendicular to the movement direction of the winding rope. The winding motor controls the rotation of the winding roller 38. When it is necessary to push the non-woven bag 23 into the heating tube 17, it is only necessary to control the movement of the winding rope and move the non-woven bag 23 to the top of the inlet 26. The lifting rod 22 pushes the non-woven bag 23 into the inlet 26. When the non-woven bag 23 enters the water in the heating tube 17, the heating tube 17 and the water receiving chamber 14 perform heat exchange. Why is the heating device such as the heat-up device not selected in this embodiment? It is mainly due to freezing rain weather. This application converts solar energy into electrical energy The energy storage is not enough, so if the resistance heating method is adopted, a large amount of electricity is consumed. In order to avoid affecting the normal operation of other power equipment, a chemical reaction is selected in this embodiment to obtain hot water, and as long as the non-woven bag 23 is continuously added to the heating tube 17, the heating tube 17 will continuously exchange heat with the hot water in the water receiving chamber 14 until the hot water in the water receiving chamber 14 can melt the ice. When the heat exchange is completed, the first solenoid valve 16 on the water pipe 15 is controlled to open, and the hot water flows from the water receiving chamber 14 to the position of the folding door 4. In addition, the heating tube 17 is set in this embodiment to keep the product sodium hydroxide in the heating tube 17 to avoid affecting the normal use of the folding door 4. As the hot water continues to flow out, the freezing rain at the corresponding position can be melted.

[0029] The connection group includes a connecting rod 27, an ejector pin 28, a first electromagnet 29, a second electromagnet 30, and a connecting electric push rod 31 for realizing the reciprocating motion of the first electromagnet 29. The connecting rod 27 is provided with a connecting hole for driving the belt 11 to pass through. The ejector pin 28 is elastically arranged above the connecting hole. The connecting hole is provided with a top hole 32 adapted to the ejector pin 28. The first electromagnet 29 slides above the ejector pin 28 through the connecting electric push rod 31. The second electromagnet 30 is arranged in the top hole 32 and adsorbs the bottom end of the ejector pin 28. The first electromagnet 29 adsorbs the top end of the ejector pin 28. There is a mounting hole, and a spring is fixedly connected between the ejector pin 28 located at one end of the mounting hole and the inner wall of the end of the mounting hole. The connecting electric push rod 31 is arranged in the mounting hole and close to the side wall of the mounting hole. The first electromagnet 29 is used to adsorb the ejector pin 28, and the second electromagnet 30 adsorbs the tail end of the ejector pin 28 passing through the driving belt 11. At this time, the connection effect between the driving belt 11 and the connecting rod 27 can be achieved. When it is necessary to control the separation of the driving belt 11 and the connecting rod 27, the connecting electric push rod 31 is controlled to control the ejector pin 28 to move in the direction away from the ejector hole 32, and the driving belt 11 is separated from the connecting rod 27.

[0030] The detection assembly includes a slider 33, a detection block 34, a detection chamber 35, a force plate 36 and a detection spring 37. The detection chamber 35 is arranged in the limit block 8. A slide groove for the slider 33 to slide is arranged on one side of the detection chamber 35. The detection block 34 slides in the detection chamber 35. The slider 33 is used to connect the detection block 34 and the sliding member 9. The force plate 36 is movably arranged in the detection chamber 35. The two ends of the detection spring 37 are respectively fixedly connected to the detection block 34 and the force plate 36; when the folding door 4 is in a closed state, the detection block 34 and the slider 33 move with the sliding member 9, and the detection spring 37 is stretched and deformed. In order to determine whether the folding door 4 has successfully defrosted the freezing rain, the connection between the contact driving belt 11 and the sliding member 9 is that the sliding member 9 moves along the length direction of the belt. At this time, the control connection electric push rod 31 controls the ejector pin 2 8 is away from the top hole 32 and the second electromagnet 30 releases the ejector pin 28. Under the elastic force of the detection spring 37, the folding door 4 can be automatically opened if the thawing is completed; of course, the force plate 36 can also move in the detection cavity 35 through the electric push rod, so that the elastic force of the detection spring 37 is greater, further ensuring the accuracy of the detection. If the folding door 4 still cannot be opened after reaching the limit of the detection spring 37, it proves that the freezing rain needs to be further dissolved. The driving belt 11 is not used for direct driving this time. The main reason is that the elastic force detection of the detection spring 37 is more intuitive. In normal state, the detection spring 37 is sufficient to open the folding door 4. However, if it is still in a frozen state, the detection spring 37 cannot open the folding door 4, and it is necessary to continue to melt the freezing rain, while directly using the driving belt 11 may cause damage to the driving belt 11.

[0031] The implementation principle of an integrated photovoltaic and storage intelligent box-type substation in an embodiment of the present application is as follows: when encountering rainy weather, the folding door 4 needs to be closed. At this time, the driving roller 10 is controlled to rotate by controlling the driving motor. Under the action of the driving belt 11, the two sliding members 9 move in a direction approaching each other, and the movable plate 6 follows the sliding member 9 to move in a direction that is in the same plane as the bottom plate 5. Under the action of the loose-leaf, the rotating connection between the movable plate 6 and the sliding member 9, and the rotating connection between the bottom plate 5 and the protective frame 3, the movable plate 6 moves to a position that is in the same plane as the bottom plate 5, thereby achieving the closing effect of the folding door 4. Similarly, the other folding door 4 is also in a state of closing. The movable sides of the two adjacent movable plates 6 abut against each other, thereby completing the protection effect on the photovoltaic device 2. Similarly, by controlling the two sliding members 9 to move in a direction away from each other, the protection effect on the photovoltaic device 2 can be achieved.

[0032] When it is necessary to push the non-woven bag 23 into the heating tube 17, it is only necessary to control the movement of the winding rope and move the non-woven bag 23 to the top of the inlet 26. The lifting rod 22 pushes the non-woven bag 23 into the inlet 26. When the non-woven bag 23 enters the water in the heating tube 17, the heating tube 17 and the water receiving chamber 14 perform heat exchange. Why is it not to select a heating device such as a hot one in this embodiment? The main reason is that the energy storage of solar energy converted into electrical energy in this application is not enough. Therefore, if a resistance heating method is used, a large amount of electricity is consumed. In order to avoid affecting the normal operation of other electrical equipment, this embodiment is selected Hot water is obtained by chemical reaction, and as long as the non-woven bag 23 is continuously added into the heating tube 17, the heating tube 17 will continuously exchange heat with the hot water in the water receiving chamber 14 until the hot water in the water receiving chamber 14 can melt the ice. When the heat exchange is completed, the first solenoid valve 16 on the water pipe 15 is controlled to open, and the hot water flows from the water receiving chamber 14 to the position of the folding door 4. In this embodiment, the heating tube 17 is also provided to keep the product sodium hydroxide in the heating tube 17 to avoid affecting the normal use of the folding door 4. As the hot water continues to flow out, the freezing rain at the corresponding position can be melted.

[0033] When the folding door 4 is in a closed state, the detection block 34 and the slider 33 move with the sliding member 9, and the detection spring 37 is stretched and deformed. In order to determine whether the folding door 4 has successfully defrosted the freezing rain, the connection between the contact drive belt 11 and the sliding member 9 is contacted at this time, that is, the sliding member 9 moves along the length direction of the belt. At this time, the control connection electric push rod 31 controls the ejector pin 28 to move away from the ejector hole 32 and the second electromagnet 30 releases the ejector pin 28. Under the elastic force of the detection spring 37, the folding door 4 can be automatically opened if the defrosting is completed; of course, the force plate 36 can also move in the detection cavity 35 through the electric push rod, so that the elastic force of the detection spring 37 is greater, further ensuring the accuracy of the detection. If the limit of the detection spring 37 is reached and the folding door 4 still cannot be opened, it proves that the freezing rain needs to be further dissolved.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent box-type substation with integrated photovoltaic and energy storage, characterized in that: It comprises a frame (1), a photovoltaic device (2) arranged in the frame (1), and a protective device for protecting the photovoltaic device (2); The protective device comprises a protective frame (3), an automatically opened / closed folding mechanism, and a defusing mechanism for defusing freezing rain on the folding mechanism; The folding mechanism comprises two folding doors (4) and a power component used to realize simultaneous opening or closing of the two folding doors (4).

2. According to claim 1, a photovoltaic and energy storage integrated intelligent box-type substation is characterized in that: The folding door (4) comprises a bottom plate (5), a movable plate (6) and a plurality of hinges (7); the bottom plate (5) is rotatably connected to the protective frame (3); one side of the movable plate (6) is rotatably connected to the movable end of the bottom plate (5) via the plurality of hinges (7); and the other end of the movable plate (6) is movably connected to the protective frame (3) via the power assembly.

3. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 2 is characterized in that: The power assembly comprises a limit block (8), two sliding members (9) and a driving part for realizing the movement of the two sliding members (9) toward / away from each other. The sliding member (9) is rotationally connected to the movable side of the movable plate (6). The rotation axes of the sliding member (9) and the movable plate (6), the hinge, the bottom plate (5) and the protective frame (3) are arranged in parallel and are perpendicular to the length direction of the limit block (8). The sliding member (9) is slidably arranged on the limit block (8).

4. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 3 is characterized by: The driving part comprises two driving rollers (10), a driving motor, a driving belt (11) and a connection group for connecting the sliding member (9) and the driving belt (11); the driving rollers (10) are rotatably arranged on the protective frame (3) and the driving motor is used to control the rotation of any one of the driving rollers (10); and the driving belt (11) is sleeved outside the two driving rollers (10).

5. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 4 is characterized in that: The defrosting mechanism comprises a telescopic rod, an ice-melting component arranged in the telescopic rod, and a detection component for detecting the ice-melting situation; the telescopic rod comprises a bottom rod (12), a movable rod (13), and a reciprocating portion for realizing the reciprocating motion of the movable rod (13); the bottom rod (12) is fixed on the protective frame (3), and the movable rod (13) is slidably arranged in the bottom rod (12).

6. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 5 is characterized in that: The ice melting assembly comprises a water receiving chamber (14), a heating unit for heating the water receiving chamber (14), and a control unit for controlling the opening and closing of the water receiving chamber (14); the top end of the water receiving chamber (14) is open; the water receiving chamber (14) is provided with a water down pipe (15); a first solenoid valve (16) is provided on the water down pipe (15); the opening of the water down pipe (15) is close to the folding door (4); the bottom rod (12) and the telescopic rod are both provided with the water receiving chamber (14); and the side of the protective frame (3) close to the water down pipe (15) is higher than the other side.

7. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 6 is characterized in that: The temperature-raising part comprises a temperature-raising tube (17), a water inlet (18), a second solenoid valve (19), and a reaction group that reacts with water to generate a large amount of heat, the water inlet (18) being arranged on the side wall of the bottom end of the temperature-raising tube (17), the second solenoid valve (19) being arranged on the water inlet (18), and the temperature-raising tube (17) being fixed in the water receiving chamber (14).

8. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 7 is characterized in that: The reaction group comprises a water level sensor (20), a reaction chamber (21), a lifting rod (22) which is lifted and lowered in the reaction chamber (21), a non-woven bag (23) which is movably arranged in the reaction chamber (21), a reaction plate (24) and a torsion spring (25); the reaction chamber (21) is arranged above the heating tube (17); the water level sensor (20) is arranged in the heating tube (17) and is located below the reaction chamber (21); The sensor (20) is electrically connected to the first solenoid valve (16); the non-woven bag (23) is filled with quicklime; the reaction chamber (21) is provided with an inlet (26) connected to the space of the heating tube (17) for storing water; the reaction plate (24) is hinged at the inlet (26) and connected to the bottom of the reaction chamber (21) via a torsion spring (25); and the lifting rod (22) pushes open the reaction plate (24) when passing through the inlet (26).

9. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 6, characterized in that: The connection group comprises a connecting rod (27), a push pin (28), a first electromagnet (29), a second electromagnet (30), and a connecting electric push rod (31) for realizing the reciprocating motion of the first electromagnet (29); the connecting rod (27) is provided with a connecting hole for driving a belt (11) to pass through; the push pin (28) is elastically arranged above the connecting hole; the connecting hole is provided with a push hole (32) adapted to the push pin (28); the first electromagnet (29) slides above the push pin (28) through the connecting electric push rod (31); the second electromagnet (30) is arranged in the push hole (32) and adsorbs the bottom end of the push pin (28); and the first electromagnet (29) adsorbs the top end of the push pin (28).

10. The photovoltaic and energy storage integrated intelligent box-type substation according to claim 9, characterized in that: The detection component comprises a slider (33), a detection block (34), a detection cavity (35), a force plate (36) and a detection spring (37); the detection cavity (35) is arranged in the limit block (8); one side of the detection cavity (35) is provided with a slide groove for sliding the slider (33); the detection block (34) slides in the detection cavity (35); the slider (33) is used to connect the detection block (34) and the sliding member (9); the force plate (36) is movably arranged in the detection cavity (35); and the two ends of the detection spring (37) are respectively fixedly connected to the detection block (34) and the force plate (36).

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