Photovoltaic energy storage charging station energy management system and control method

Abstract

The invention relates to the technical field of power supply systems, in particular to a photovoltaic energy storage charging station energy management system and a control method.The photovoltaic energy storage charging station energy management system comprises a box body, a management module is fixedly installed in the box body, a telescopic mechanism is fixedly installed on the back face of the box body, and protection mechanisms are fixedly installed on the two sides of the outer end of the telescopic mechanism; by means of the definite boiling point characteristic of a phase change material, the material absorbs heat and is vaporized when the temperature reaches a phase change point, the piston rod is pushed to open the heat dissipation grooves to enhance ventilation, the higher the temperature is, the larger the opening degree of the heat dissipation channels is, and when the temperature is reduced, the material is condensed and reset to close the heat dissipation grooves. Through the reversible characteristic of the phase change material, temperature self-adaptive heat dissipation can be achieved without external power, hysteresis of a traditional heat dissipation mode is avoided, automatic sealing, protection and moisture prevention can be achieved when equipment is powered off, meanwhile, the heat dissipation efficiency is remarkably improved through cooperation with the aluminum or copper heat conduction base, and the overall protection effect is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of power supply systems, and in particular to an energy management system and control method for a photovoltaic energy storage charging station. Background Art

[0002] Energy management equipment is a core component for power plants to monitor, control, and optimize power transmission. Its performance directly impacts the stability and efficiency of power plant operations. Currently, energy management equipment typically integrates key components such as controllers, data collectors, and circuit breakers. To improve space utilization, a common design is to install the controller close to the chassis wall. However, this equipment is often deployed outdoors, where extreme temperature environments pose a severe operational challenge. In high-temperature conditions, close contact between the chassis wall and the controller leads to rapid heat conduction, causing a sharp rise in controller temperature, resulting in performance degradation and even overload derating, seriously threatening equipment reliability and service life. To address the controller overheating problem, existing technologies, such as the Chinese patent publication CN221042067U, propose suspending the controller within the cavity of the chassis using a support structure. This design, to a certain extent, blocks heat transfer from the chassis wall and alleviates controller overheating. However, this solution still has significant flaws: First, it fails to fully consider the difference in humidity between the operating and power-off states of electronic components. During normal operation, electronic components generate heat themselves, creating a dry microenvironment that provides a certain degree of moisture resistance. However, after power is turned off, the component temperature drops sharply to ambient temperature. When the ambient humidity is high, water vapor easily condenses into water droplets on the surfaces of low-temperature components. Without continuous heat to dissipate the water vapor, moisture is more likely to adhere, leading to frequent failures such as oxidation of metal pins and degradation of circuit board insulation, which significantly affect the performance and lifespan of the device. Second, existing devices lack an automatic control mechanism. They cannot dynamically adjust the heat dissipation intensity according to temperature changes, nor can they promptly activate protective sealing measures when the power is off. This makes them difficult to adapt to complex and changing outdoor environments, resulting in a high equipment failure rate. Therefore, improved designs of existing technologies are needed. Summary of the Invention

[0003] In order to improve the protection performance during the overall application of the existing technology, the present application provides an energy management system and control method for a photovoltaic energy storage charging station.

[0004] The present application provides an energy management system and control method for a photovoltaic energy storage charging station, which adopts the following technical solution: comprising a box, a management module fixedly mounted within the box, a telescopic mechanism fixedly mounted on the back of the box, protective mechanisms fixedly mounted on both sides of the outer ends of the telescopic mechanism, heat dissipation slots on both sides of the box, dustproof nets fixedly mounted inside the heat dissipation slots, the protective mechanisms covering the outer sides of the dustproof nets, and a sealing cover plate fixedly mounted on the front of the box via bolts; The telescopic mechanism includes a heat-conducting seat, and a piston sleeve is fixedly installed on the top and lower ends of the middle part of the heat-conducting seat. The interior of the piston sleeve is filled with liquid phase change material. The interior of the piston sleeve is slidably connected to a piston rod, and the outer end of the piston rod is fixedly installed with a connecting frame. The protective mechanism is fixedly installed at both ends of the connecting frame.

[0005] Optionally, the protective mechanism includes a trough body and a cleaning module, the trough body is opened on both sides of the top of the box body and on both sides of the bottom of the box body, the inner end of the trough body passes through the box body, the interior of the trough body is slidably connected with a sealing plate, the sealing plate covers the inner side of the dustproof net, the outer side of the sealing plate is fixedly connected to the inner side of the connecting frame, the outer side of the sealing plate is fixedly connected with a sealing plate, and the sealing plate covers the outer side of the trough body.

[0006] Optionally, the cleaning module includes a slide, which is fixedly mounted on the outer end of the connecting frame. The inner middle part of the slide is rotatably connected to a rotating shaft, the inner side of the rotating shaft is fixedly connected to a transmission group, the inner side of the transmission group is fixedly connected to a cleaning group, and the inner side of the cleaning group is fitly connected to the outer side of the dustproof net.

[0007] Optionally, the transmission group includes a fixed column and a gear, the fixed column is fixedly installed on the upper and lower ends of the outer side of the dustproof net, a rack is fixedly installed on the outer side of the fixed column, the gear is fixedly installed on the outer end of the rotating shaft, and the gear and rack are meshed and connected.

[0008] Optionally, the cleaning group includes a mounting frame, which is arranged in a ring shape with equal intervals and fixedly mounted on the outer surface of the rotating shaft, and the inner side of the mounting frame is fixedly connected with telescopic springs arranged linearly with equal intervals, and the end of the telescopic spring is fixedly connected to a cleaning brush plate, and the brush on the inner side of the cleaning brush plate is fitly connected to the outer side of the dustproof net.

[0009] Optionally, support shafts are fixedly connected to the outer sides of the cleaning brush plates at equal intervals, and the outer ends of the support shafts pass through the mounting frame.

[0010] Optionally, support rails are fixedly installed on both front and rear ends of both sides of the box body, and support sliders are fixedly connected to both ends of the slide seat, and the support sliders are slidably connected to the inner sides of the support rails.

[0011] Optionally, guide rails are fixedly installed at both ends of the box body, and the blocking plate is slidably connected to the inside of the guide rails.

[0012] Optionally, mounting columns are fixedly installed at the four corners on the back of the box, and a mounting frame is fixedly installed at the rear end of the mounting columns. Mounting holes are opened in the middle of the top, the middle of the bottom and the middle of both sides of the mounting frame, and the mounting holes are set as countersunk holes.

[0013] A photovoltaic energy storage charging station energy management control method includes the following steps: Step 1: Equipment Integration and Installation: Within the energy management system cabinet, each component is fixedly installed according to functional zoning. The controller, MPLC module, and I / O module are installed in the main control area and connected via internal wiring. The MPLC module and I / O module serve as expansion units of the controller, responsible for signal processing and command output. Fuses, lightning arresters, and circuit breakers are installed in the power line access area. The fuses and circuit breakers are connected in series in the power supply circuit, and the lightning arrester is connected in parallel to the main line entrance. The fiber optic box and switch are installed in the data transmission area. The fiber optic box has a reserved fiber optic interface, and the switch is connected to the controller and other communication equipment via a network cable. The power module is installed in an independent power supply area to provide stable power to each component and ensure that the relative positions of each component meet electrical safety distance standards. Step 2: Connect and configure the circuits. Connect the power module output to the fuse, lightning arrester, and circuit breaker to form the main power supply circuit. Connect the circuit breaker output to the power supply ports of power-consuming devices such as the controller, MPLC module, I / O module, and switch. Use optical fiber to connect the fiber optic box to external data acquisition equipment and monitoring terminals to achieve remote data exchange. Use network cables to connect the switch to the controller, MPLC module, and I / O module to establish a data link and build an internal data communication network for the equipment. After completing the circuit connection, configure basic parameters such as IP addresses and communication protocols for the controller, MPLC module, and switch to ensure normal data transmission between devices. Step 3: Assemble the telescopic mechanism. Install a thermal pad on the back of the enclosure. Choose aluminum or copper to ensure thermal conductivity and fit it tightly against the back of the enclosure. Secure piston sleeves to the top and bottom ends of the thermal pads. Fill the piston sleeves with Opteon™ SF33 or Vertrel™ XF liquid phase change material. Install the piston rod into the piston sleeve, ensuring it can slide freely. Secure a connecting bracket to the outer end of the piston rod. Secure both ends of the connecting bracket to the protective mechanism to ensure a secure connection. This completes the assembly of the telescopic mechanism. Step 4: Install the protection and cleaning mechanism. Open slots on both sides of the top and bottom of the box. The slots run through the box and are equipped with guide rails inside. Fix the blocking plate to the inner side of the connecting frame so that the blocking plate can slide along the guide rails in the slot and cover the inner side of the dust screen. Fix the sealing plate on the outside of the blocking plate to ensure that the sealing plate can cover the outside of the slot. Install a slide at the outer end of the connecting frame, install supporting sliders at both ends of the slide, and slide the supporting sliders to the supporting rails on both sides of the box. Install a rotating shaft in the middle of the inner side of the slide, fix a gear on the outer end of the rotating shaft, install fixed columns and set racks at the upper and lower ends of the outer side of the dust screen, so that the gear and the rack are meshed. Install the transmission group and the cleaning group at the inner end of the rotating shaft. The cleaning brush plate of the cleaning group is connected to the mounting frame through a telescopic spring to ensure that the brush of the cleaning brush plate fits the outer side of the dust screen. Step 5: System initialization test: Turn on the power and start the system. The controller uses the MPLC module and I / O module to check the status of the fuse, lightning arrester, and circuit breaker to determine whether there are any abnormalities such as short circuit, overload, or lightning arrester failure. It also checks the data transmission status between the switch and the fiber optic box and whether all communication links are unobstructed. It reads the initial position signals of the telescopic mechanism, protective mechanism, and cleaning module to confirm that they are in standby mode. If an abnormality is detected, a fault code is output through the display or communication port. Step 6: Energy Monitoring and Data Collection. During system operation, the controller uses the MPLC module and I / O module to collect real-time data from the photovoltaic energy storage charging station. These data include the photovoltaic panel power generation, the energy storage battery charge and discharge status, and voltage and current parameters. The controller also receives charging pile power usage data through the fiber optic box and switch. The controller also monitors power equipment parameters such as fuse current, lightning arrester operating status, and circuit breaker opening and closing status. Furthermore, a temperature sensor installed inside the box transmits ambient temperature data to the controller, providing a basis for subsequent control. Step 7: Temperature adaptive control. When the temperature data received by the controller indicates that the ambient temperature outside the cabinet has risen to or above the boiling point of the phase change material (33°C for Opteon™ SF33 and 55°C for Vertrel™ XF), the thermal block transfers heat to the piston sleeve, causing the phase change material to transform from liquid to gas. The volume expansion pushes the piston rod outward, which in turn drives the connecting frame to move. The connecting frame drives the sealing plate out of the tank, opening the heat sink and dust screen, enhancing ventilation and heat dissipation inside the cabinet. Simultaneously, the movement of the connecting frame drives the cleaning module to operate. The cleaning brush moves in a circular motion around the shaft, cleaning dust from the surface of the dust screen. When the temperature drops below the boiling point of the phase change material, the phase change material condenses back into liquid, the piston rod retracts, the sealing plate reseals the heat sink, and the cleaning module resets. Step 8: Intelligent control of power equipment. The controller intelligently controls fuses, lightning arresters, and circuit breakers based on collected power data. When a circuit overload or short circuit is detected, the controller sends a command through the I / O module to trip the circuit breaker and cut off the faulty circuit. The controller also monitors the working status of the lightning arrester in real time. If a lightning surge signal is detected, the lightning arrester will trigger protection and record the abnormal event. The MPLC module continuously monitors the fuse current. When the current exceeds the rated value, an early warning signal is issued, prompting maintenance personnel to inspect and replace the fuse. Step 9: Data processing and remote communication. The controller analyzes and processes the collected data, performs data calculations and logical judgments through the MPLC module, generates energy management strategies, and uploads the processed data to the remote monitoring center through the fiber optic box and switch. This allows for remote real-time viewing of equipment operating status and historical data query. The controller receives control commands from the remote monitoring center, such as adjusting the energy storage battery charging and discharging strategies and controlling the start and stop of charging piles, and executes corresponding operations through the I / O module. Step 10: Power-off protection and emergency handling. When a power outage is detected, the controller immediately starts the emergency procedure. On the one hand, the temperature drops to liquefy the phase change material, and the piston rod retracts to drive the sealing plate to slide, sealing the heat dissipation slot to prevent moisture from invading the box. On the other hand, the I / O module saves current important data, such as the remaining power of the energy storage battery and equipment operating parameters. At the same time, the backup power supply is used to maintain the short-term operation of the controller, MPLC module and communication module, and the power-off information is sent to the remote monitoring center. After the power is restored, the system automatically performs self-test and data recovery to ensure the normal operation of the equipment.

[0014] In summary, this application has the following beneficial technical effects: This device utilizes the clear boiling point characteristics of phase change materials. When the temperature reaches the phase change point, the material absorbs heat and vaporizes, pushing the piston rod to open the heat dissipation slot to enhance ventilation. The higher the temperature, the greater the degree of opening of the heat dissipation channel. When the temperature drops, the material condenses and resets, closing the heat dissipation slot. Through the reversible characteristics of phase change materials, temperature-adaptive heat dissipation can be achieved without external power, avoiding the hysteresis of traditional heat dissipation methods. It can automatically seal and protect against moisture when the device is powered off. At the same time, it is combined with an aluminum or copper thermal conductive base to significantly improve heat dissipation efficiency, further enhancing its overall protection effect. When the device is in operation, the protective mechanism activates heat dissipation at high temperatures. At low temperatures, a double seal is formed through the blocking plate and the sealing plate to isolate moisture and dust. When the power is cut off and operation stops, the phase change material liquefies and automatically seals the heat dissipation slot to prevent moisture from corroding the electronic components. The two phase change materials have strong chemical stability and can withstand a large number of phase change cycles. Combined with the cleaning module, the dustproof screen is automatically cleaned, so that the cabinet achieves a high level of protection and ensures long-term stable operation of the equipment in complex outdoor environments. The phase change material-driven telescopic mechanism does not require electricity, which saves energy compared to traditional electric temperature control devices. Opteon™ SF33 and Vertrel™ XF are non-toxic and environmentally friendly, harmless to humans and the environment. The equipment automatically adjusts the heat dissipation, sealing and cleaning functions, reducing the frequency of manual maintenance and lowering maintenance costs, achieving the dual advantages of energy saving and environmental protection and low-cost operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2This is a schematic diagram of the rear view structure in an embodiment of the present application; Figure 3 This is a schematic diagram of the front structure of the embodiment of the present application in the extended state; Figure 4 This is a schematic diagram of the rear view structure in the extended state in an embodiment of the present application; Figure 5 This is a schematic diagram of the front structure of the protection mechanism in the embodiment of the present application; Figure 6 This is a bottom-up structural diagram of the protection mechanism in an embodiment of the present application; Figure 7 In the embodiment of this application Figure 6 Schematic diagram of the structure at A; Figure 8 It is a schematic diagram of the top view structure in the embodiment of the present application.

[0016] : Illustrations: 1. Box body; 2. Management module; 3. Telescopic mechanism; 31. Heat-conducting seat; 32. Piston sleeve; 33. Piston rod; 34. Connecting frame; 4. Heat dissipation slot; 5. Dust net; 6. Protection mechanism; 61. Slot body; 62. Cleaning module; 621. Slide seat; 622. Rotating shaft; 623. Transmission group; 6231. Fixed column; 6232. Gear; 6233. Rack; 624. Cleaning group; 6241. Mounting frame; 6242. Telescopic spring; 6243. Cleaning brush plate; 6244. Support shaft; 6245. Support rail; 6246. Support slider; 63. Blocking plate; 64. Sealing plate; 65. Guide rail; 7. Sealing cover; 8. Mounting column; 9. Mounting frame; 10. Mounting hole. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-8 This application is described in further detail.

[0018] The present application discloses an energy management system and control method for a photovoltaic energy storage charging station. Figure 1-8 As shown, it includes a box body 1, a management module 2 is fixedly installed in the box body 1, a telescopic mechanism 3 is fixedly installed on the back of the box body 1, and protective mechanisms 6 are fixedly installed on both sides of the outer ends of the telescopic mechanism 3. Heat dissipation grooves 4 are opened on both sides of the box body 1, and dustproof nets 5 are fixedly installed inside the heat dissipation grooves 4. The protective mechanism 6 covers the outside of the dustproof nets 5. A sealing cover plate 7 is installed on the front of the box body 1 by bolts; The telescopic mechanism 3 includes a heat conducting seat 31, the middle top and the lower end of the heat conducting seat 31 are fixedly installed with a piston sleeve 32, the interior of the piston sleeve 32 is filled with liquid phase change material, the interior of the piston sleeve 32 is slidably connected to the piston rod 33, the outer end of the piston rod 33 is fixedly installed with a connecting frame 34, and the protective mechanism 6 is fixedly installed at both ends of the connecting frame 34. During use, when the external ambient temperature of the box body 1 rises to a temperature close to or exceeding the boiling point of the liquid phase change material filled in the piston sleeve 32, the aluminum or copper heat conducting seat 31 transfers the heat generated by the operation of the management module 2 to the piston sleeve 32, the phase change material absorbs heat and changes from liquid to gas, and the volume expansion pushes the piston rod 33 to slide outward, and the piston rod 33 drives the outer end connecting frame 34 to move, so that the blocking plates 63 in the protective mechanism 6 at both ends of the connecting frame 34 are pulled out from the groove body 61, the heat dissipation groove 4 and the dustproof net 5 are opened to enhance the ventilation inside the box body 1, and at the same time the connecting frame 34 The outer end slide 621 slides along the supporting rail 6245 through the supporting slider 6246, and the inner gear 6232 of the slide 621 engages with the outer rack 6233 of the fixed column 6231, driving the rotating shaft 622 to rotate and causing the cleaning brush plate 6243 to make a circular motion around the rotating shaft 622 to clean the dust on the surface of the dustproof net 5; when the ambient temperature drops below the boiling point of the phase change material, the gaseous phase change material condenses back to liquid, and the volume shrinks to form a negative pressure. The piston rod 33 retracts under the action of the pressure difference, driving the connecting frame 34 and the protective mechanism 6 to reset, and the sealing plate 63 reseals the heat dissipation slot 4, and the sealing plate 64 covers the slot body 61 to form a double-layer sealing structure. When the equipment is powered off, the temperature drops, and the phase change material liquefies to drive the sealing plate 63 to stably cover the inner side of the heat dissipation slot 4 to prevent moisture from corroding the internal electronic components. The entire process converts temperature changes into mechanical motion through the reversible phase change characteristics of the phase change material, thereby realizing automatic regulation of heat dissipation, protection and cleaning.

[0019] The thermal base 31 is made of thermally conductive aluminum or thermally conductive copper. The management module 2 is installed on the front of the thermal base 31. The thermal base 31 is used for efficient heat absorption and heat dissipation. The liquid phase change material can specifically be Opteon™ SF33 and Vertrel™ XF. Opteon™ SF33 has a boiling point of 33°C and changes from liquid to gas at temperatures above 33°C. It condenses back to liquid at temperatures below this temperature. Vertrel™ XF has a boiling point of 55°C and evaporates at temperatures above 55°C and condenses at temperatures below this temperature. The phase change process is reversible and stable, and its latent heat capacity is high, which can achieve stable and rapid heat absorption and release. During the use of the device, a touch screen or control panel can be adaptively installed on the sealing cover 7 to assist in controlling the device; The management module 2 is composed of a controller, a fuse, a lightning arrester, a circuit breaker, a fiber optic box, a switch, a power supply, an MPLC module and an I / O module. For specific prior art, please refer to the prior art in the background technology. It is a prior art means, so it will not be described in detail here.

[0020] Please refer to Figures 1-8 The protective mechanism 6 includes a trough 61 and a cleaning module 62. The trough 61 is opened on both sides of the top of the box body 1 and on both sides of the bottom of the box body 1. The inner end of the trough 61 passes through the box body 1. The interior of the trough 61 is slidably connected with a blocking plate 63. The blocking plate 63 covers the inner side of the dustproof net 5. The outer side of the blocking plate 63 is fixedly connected to the inner side of the connecting frame 34. The outer side of the blocking plate 63 is fixedly connected with a sealing plate 64. The sealing plate 64 covers the outer side of the trough 61. The cleaning module 62 includes a slide 621, which is fixedly mounted on the connecting frame The outer end of 34, the inner middle part of the slide 621 is rotatably connected to the rotating shaft 622, the inner side of the rotating shaft 622 is fixedly connected to the transmission group 623, the inner side of the transmission group 623 is fixedly connected to the cleaning group 624, the inner side of the cleaning group 624 is fitted with the outer side of the dustproof net 5, and the device adopts the protection mechanism 6 and the cleaning module 62 to work together. When the piston rod 33 of the telescopic mechanism 3 is driven by the phase change material to drive the connecting frame 34 to move outward, the inner side of the connecting frame 34 drives the blocking plate 63 to slide along the guide rail 65 inside the groove body 61 to block The plate 63 is drawn out from the groove 61 and covers the inner side of the dustproof net 5. At the same time, the sealing plate 64 on the outer side of the blocking plate 63 covers the outer side of the groove 61, forming a double-layer sealing structure to prevent external moisture and dust from entering the interior of the box 1. In this process, the slide 621 fixed at the outer end of the connecting frame 34 slides along the supporting rail 6245 through the supporting slider 6246. The gear 6232 at the outer end of the rotating shaft 622 on the inner side of the slide 621 is meshed with the rack 6233 on the outer side of the fixed column 6231. As the connecting frame 34 moves, the gear 6232 moves on the rack 62 The rolling on 33 drives the rotating shaft 622 to rotate, and then drives the transmission group 623, and the transmission group 623 drives the cleaning group 624 to operate, so that the cleaning brush plate 6243 that is closely connected to the outer side of the dustproof net 5 makes a circular motion around the rotating shaft 622, sweeping away the dust and debris attached to the surface of the dustproof net 5. When the piston rod 33 retracts due to the condensation of the phase change material and drives the connecting frame 34 to reset, the blocking plate 63 and the sealing plate 64 retreat to the inside of the groove body 61 to release the seal, and the cleaning module 62 stops working synchronously, waiting for the next temperature change to trigger a new round of action.

[0021] Please refer to Figure 5-Figure 7The transmission group 623 includes a fixed column 6231 and a gear 6232. The fixed column 6231 is fixedly installed at the upper and lower ends of the outer side of the dustproof net 5. The outer side of the fixed column 6231 is fixedly installed with a rack 6233. The gear 6232 is fixedly installed at the outer end of the rotating shaft 622. The gear 6232 and the rack 6233 are meshed and connected. The cleaning group 624 includes a mounting bracket 6241. The mounting bracket 6241 is evenly spaced and arranged in a ring shape and fixedly installed on the outer surface of the rotating shaft 622. The inner side of the mounting bracket 6241 is evenly spaced and arranged linearly. The column is fixedly connected with a telescopic spring 6242, and the end of the telescopic spring 6242 is fixedly connected with a cleaning brush plate 6243. The brush on the inside of the cleaning brush plate 6243 is fitted and connected to the outside of the dustproof net 5. The outside of the cleaning brush plate 6243 is fixedly connected with a support shaft 6244 at equal intervals. The outer end of the support shaft 6244 passes through the mounting bracket 6241. During use, when the connecting bracket 34 moves under the drive of the piston rod 33, the gear 6232 fixed to the outer end of the rotating shaft 622 inside the sliding seat 621 at the outer end of the connecting bracket 34 is fixed with the fixed The racks 6233 fixed on the upper and lower fixed columns 6231 at the outer side of the dust screen 5 are engaged and will roll with the movement of the connecting frame 34. The gear 6232 rolls to drive the rotating shaft 622 to rotate, thereby causing the mounting brackets 6241 fixed on the outer surface of the rotating shaft 622 to rotate in an equidistant annular arrangement. When the mounting brackets 6241 rotate, the telescopic springs 6242 arranged linearly at equidistant intervals on the inner side drive the cleaning brush plate 6243 to make a circular motion around the rotating shaft 622, and the brush inside the cleaning brush plate 6243 touches the dust screen 5. The outer side fits well to clean the dust and debris on the surface of the dustproof net 5. The telescopic spring 6242 can automatically adjust the pressure according to the unevenness of the surface of the dustproof net 5 during the movement of the cleaning brush plate 6243, ensuring that the brush is always in close contact with the dustproof net 5 to maintain the cleaning effect; the support shaft 6244 on the outside of the cleaning brush plate 6243 passes through the mounting frame 6241, which plays a role in limiting and guiding, ensuring that the cleaning brush plate 6243 remains stable during the circular motion to avoid deviation, thereby continuously and efficiently cleaning the dustproof net 5.

[0022] Please refer to Figure 3-Figure 4, both front and rear ends of both sides of the box body 1 are fixedly installed with support rails 6245, and both ends of the slide 621 are fixedly connected with support sliders 6246, and the support sliders 6246 are slidably connected to the inner sides of the support rails 6245. The front and rear ends of both sides of the box body 1 are fixedly installed with guide rails 65, and the blocking plate 63 is slidably connected to the inside of the guide rails 65. The four corners of the back of the box body 1 are fixedly installed with mounting columns 8, and the rear end of the mounting column 8 is fixedly installed with a mounting frame 9. The mounting frame 9 has mounting holes 10 in the top middle, bottom middle and both sides middle. The mounting holes 10 are set as countersunk holes. During the use of this device, the support rails 6245 fixed at the front and rear ends of both sides of the box body 1 and the support sliders 6246 at both ends of the slide 621 form a sliding guide structure. When the piston rod 33 of the telescopic mechanism 3 pushes the connecting frame 34 to move, the support slider 624 6 slides on the inside of the supporting rail 6245, providing a stable guide for the movement of the slide 621 and the connecting frame 34, ensuring that the cleaning module 62 runs along the predetermined track to avoid deviation or shaking; the guide rails 65 at the front and rear ends of both sides of the box body 1 provide sliding tracks for the blocking plate 63. When the connecting frame 34 drives the blocking plate 63 to move, the blocking plate 63 slides inside the guide rail 65 to ensure that it can accurately cover or evacuate the inside of the dustproof net 5, thereby achieving the sealing and opening of the heat dissipation slot 4; the mounting columns 8 at the four corners on the back of the box body 1 are used to install the mounting frame 9. The countersunk holes on the mounting frame 9 can be connected to the external mounting base through bolts. The countersunk hole design allows the bolt head to be embedded in the hole, ensuring that the surface is flat after installation, preventing the protrusion from affecting the installation and operation of the equipment, and at the same time ensuring that the entire box body 1 is firmly installed, so that the internal mechanisms remain stable during operation.

[0023] A photovoltaic energy storage charging station energy management control method includes the following steps: Step 1: Equipment Integration and Installation: Inside the energy management system box 1, install each component according to functional zoning. Install the controller, MPLC module, and I / O module in the main control area. The three are connected through internal wiring. The MPLC module and I / O module serve as expansion units of the controller for signal processing and command output. Fuses, lightning arresters, and circuit breakers are installed in the power line access area. The fuses and circuit breakers are connected in series in the power supply circuit, and the lightning arrester is connected in parallel to the main line entrance. The fiber optic box and switch are installed in the data transmission area. The fiber optic box has a reserved fiber optic interface, and the switch is connected to the controller and other communication equipment via a network cable. The power module is installed in an independent power supply area to provide stable power to each component and ensure that the relative positions of each component meet the electrical safety distance standards. Step 2: Connect and configure the circuits. Connect the power module output to the fuse, lightning arrester, and circuit breaker to form the main power supply circuit. Connect the circuit breaker output to the power supply ports of power-consuming devices such as the controller, MPLC module, I / O module, and switch. Use optical fiber to connect the fiber optic box to external data acquisition equipment and monitoring terminals to achieve remote data exchange. Use network cables to connect the switch to the controller, MPLC module, and I / O module to establish a data link and build an internal data communication network for the equipment. After completing the circuit connection, configure basic parameters such as IP addresses and communication protocols for the controller, MPLC module, and switch to ensure normal data transmission between devices. Step 3: Assemble the telescopic mechanism 3. Install a thermal base 31 on the back of the box 1. Choose aluminum or copper thermal base 31 to ensure thermal conductivity and fit it tightly to the back of the box 1. Securely install piston sleeves 32 at the top and bottom of the middle portion of the thermal base 31. Fill the piston sleeves 32 with Opteon™ SF33 or Vertrel™ XF liquid phase change material. Install the piston rod 33 within the piston sleeve 32, ensuring it can slide freely. Secure a connecting frame 34 to the outer end of the piston rod 33. The ends of the connecting frame 34 are fixed to the protective mechanism 6 to ensure a secure connection. This completes the overall assembly of the telescopic mechanism 3. Step 4: Install the protection and cleaning mechanism. Open a groove 61 on both sides of the top and bottom of the box body 1. The groove 61 passes through the box body 1 and is equipped with a guide rail 65 inside. Fix the blocking plate 63 to the inner side of the connecting frame 34 so that the blocking plate 63 can slide along the guide rail 65 in the groove 61 and cover the inner side of the dustproof net 5. Fix the sealing plate 64 on the outside of the blocking plate 63 to ensure that the sealing plate 64 can cover the outside of the groove 61. Install a slide 621 on the outer end of the connecting frame 34, and install supporting sliders 6246 at both ends of the slide 621. Connect the supporting slider 6246 with the connecting frame 34. The supporting rails 6245 on both sides of the box body 1 are slidably connected; a rotating shaft 622 is installed in the middle of the inner side of the slide 621, and a gear 6232 is fixed to the outer end of the rotating shaft 622. Fixed columns 6231 and racks 6233 are installed at the upper and lower ends of the outer side of the dust screen 5, so that the gear 6232 and the rack 6233 are engaged; a transmission group 623 and a cleaning group 624 are installed at the inner end of the rotating shaft 622. The cleaning brush plate 6243 of the cleaning group 624 is connected to the mounting bracket 6241 via a telescopic spring 6242 to ensure that the brush of the cleaning brush plate 6243 is in contact with the outer side of the dust screen 5. Step 5: System initialization test: Turn on the power and start the system. The controller uses the MPLC module and I / O module to check the status of the fuse, lightning arrester, and circuit breaker to determine whether there are any abnormalities such as short circuit, overload, or lightning arrester failure. The controller also checks the data transmission status between the switch and the fiber optic box to check whether all communication links are unobstructed. The controller reads the initial position signals of the telescopic mechanism 3, the protective mechanism 6, and the cleaning module 62 to confirm that they are in the standby state. If an abnormality is detected, a fault code is output through the display or communication port. Step 6: Energy Monitoring and Data Collection. During system operation, the controller collects various data from the photovoltaic energy storage charging station in real time through the MPLC module and I / O module. These include the photovoltaic panel power generation, the energy storage battery charge and discharge status, and voltage and current parameters. The controller receives charging pile power usage data through the fiber optic box and switch. The controller also monitors power equipment parameters such as fuse current, lightning arrester operating status, and circuit breaker opening and closing status. Simultaneously, a temperature sensor installed inside the box 1 transmits ambient temperature data to the controller, providing a basis for subsequent control. Step 7: Temperature adaptive control. When the temperature data received by the controller indicates that the ambient temperature outside the cabinet 1 rises to a temperature close to or exceeds the boiling point of the phase change material (33°C for Opteon™ SF33 and 55°C for Vertrel™ XF), the heat conducting seat 31 transfers heat to the piston sleeve 32, causing the phase change material to change from liquid to gas. The volume expansion pushes the piston rod 33 to slide outward, which drives the connecting frame 34 to move. The connecting frame 34 drives the sealing plate 63 to be withdrawn from the slot 61, opening the heat dissipation slot 4 and the dust screen 5, thereby enhancing ventilation and heat dissipation inside the cabinet 1. At the same time, the movement of the connecting frame 34 drives the cleaning module 62 to operate. The cleaning brush plate 6243 performs a circular motion around the rotating shaft 622 to clean dust from the surface of the dust screen 5. When the temperature drops below the boiling point of the phase change material, the phase change material condenses back to liquid, the piston rod 33 retracts, the sealing plate 63 reseals the heat dissipation slot 4, and the cleaning module 62 is reset. Step 8: Intelligent control of power equipment. The controller intelligently controls fuses, lightning arresters, and circuit breakers based on collected power data. When a circuit overload or short circuit is detected, the controller sends a command through the I / O module to trip the circuit breaker and cut off the faulty circuit. The controller also monitors the working status of the lightning arrester in real time. If a lightning surge signal is detected, the lightning arrester will trigger protection and record the abnormal event. The MPLC module continuously monitors the fuse current. When the current exceeds the rated value, an early warning signal is issued, prompting maintenance personnel to inspect and replace the fuse. Step 9: Data processing and remote communication. The controller analyzes and processes the collected data, performs data calculations and logical judgments through the MPLC module, generates energy management strategies, and uploads the processed data to the remote monitoring center through the fiber optic box and switch. This allows for remote real-time viewing of equipment operating status and historical data query. The controller receives control commands from the remote monitoring center, such as adjusting the energy storage battery charging and discharging strategies and controlling the start and stop of charging piles, and executes corresponding operations through the I / O module. Step 10: Power-off protection and emergency handling. When a power outage is detected, the controller immediately starts the emergency procedure. On the one hand, the temperature drops to liquefy the phase change material, and the piston rod 33 retracts to drive the sealing plate 63 to slide, sealing the heat dissipation slot 4 to prevent moisture from invading the box 1. On the other hand, the I / O module saves current important data, such as the remaining power of the energy storage battery and the equipment operating parameters. At the same time, the backup power supply is used to maintain the short-term operation of the controller, MPLC module and communication module, and the power-off information is sent to the remote monitoring center. After the power is restored, the system self-checks and data recovery are automatically performed to ensure the normal operation of the equipment.

[0024] The implementation principle of the energy management system and control method of a photovoltaic energy storage charging station in the embodiment of the present application is as follows: the piston sleeve 32, the core component of the telescopic mechanism 3 of the device, is filled with Opteon™ SF33 or Vertrel™ XF liquid phase change material. The material can be selected according to the heat dissipation requirements. The material can be not only the above two materials, but also other phase change materials can be selected according to the specific heat dissipation requirements. During use, when the external ambient temperature of the box body 1 rises to a temperature close to or exceeding the boiling point of the phase change material (33°C for Opteon™ SF33 and 55°C for Vertrel™ XF), the heat conduction The seat 31 is made of aluminum or copper, which has high thermal conductivity and can absorb the heat generated during the operation of the management module 2. At this time, the heat is introduced into the piston sleeve 32. The phase change material inside the piston sleeve 32 absorbs the heat conducted by the heat-conducting seat 31, changes from liquid to gas, evaporates and absorbs heat, which can further improve its thermal conductivity and heat dissipation efficiency. The volume expansion of the phase change material in the gaseous state generates pressure and can also push the piston rod 33 in the piston sleeve 32 to slide outward. The piston rod 33 drives the outer end connecting frame 34 to move, thereby driving the protection mechanism 6 and the cleaning module 62 to operate, prompting the sealing The blocking plate 63 is pulled out from the inside of the tank body 61, and the heat dissipation slot 4 can be opened at this time. By opening the heat dissipation slot 4, the ventilation effect inside the box body 1 can be improved. At the same time, during the heat dissipation process, the higher the temperature, the greater the expansion degree, and the better the heat dissipation slot 4 can be opened. It can adjust the heat dissipation capacity in real time according to the temperature, thereby improving the overall heat dissipation effect. When the ambient temperature drops below the boiling point of the phase change material, the gaseous phase change material quickly condenses back to the liquid state, and the volume shrinks to form a negative pressure. The piston rod 33 retracts under the action of the pressure difference, driving the connecting frame 34 and the protective mechanism 6. The whole process is achieved through the phase change material. The reversible phase change characteristic directly converts the ambient temperature change into mechanical movement without the need for an external power source and a complex temperature control circuit. When the device stops and the power is cut off, the temperature drops, and the phase change material liquefies to seal the two sides of the box body 1. At this time, the blocking plate 63 slides inside the guide rail 65 and stably covers and seals the inner side of the heat dissipation slot 4, which can improve the overall sealing effect. When the device stops running, the heat dissipation slot 4 can be automatically closed, and the box body 1 can be in a sealed state. It can maintain a good sealing protection effect when the device stops running and the power is cut off, and can prevent moisture from corroding electronic components when the device stops running; When the piston rod 33 pushes the connecting frame 34 to move eastward, the connecting frame 34 can drive the sealing plate 63 to slide along the guide rail 65 in the groove body 61. The sealing plate 63 is pulled out from the groove body 61 to open the heat dissipation groove 4 and the dustproof net 5. When the heat dissipation groove 4 is fully opened, the heat dissipation groove 4 can form a fast and efficient air circulation to improve its heat dissipation effect. During this period, when the equipment stops running or the temperature drops, the gaseous phase change material liquefies. At this time, the piston rod 33 inside the piston sleeve 32 contracts as the negative pressure is formed by the liquefaction, and then the connecting frame 34 can be driven to drive the sealing plate 63 to slide inside the guide rail 65. The sealing plate 63 can be sealed in the heat dissipation groove 4. At the same time, the sealing plate 64 can cover the groove body 61 to form a double-layer sealing structure to prevent moisture from entering the box body 1. In this process, during the sliding and retracting period of the connecting frame 34 in use, the sliding seat 621 at the outer end of the connecting frame 34 is fixed by the slider 624 6 slides along the supporting rail 6245, and the gear 6232 on the outer end of the rotating shaft 622 inside the slide 621 is engaged with the rack 6233 on the outer side of the fixed column 6231. As the connecting frame 34 moves, the gear 6232 rolls on the rack 6233 and drives the rotating shaft 622 to rotate, thereby driving the cleaning module 62 to operate. The rotation of the rotating shaft 622 can drive the mounting frame 6241 to rotate around the rotating shaft 622, and the rotation of the mounting frame 6241 can drive the cleaning brush plate 6243 to rotate around the rotating shaft 622. The rotating shaft 622 makes a circular motion, and the brush on the inner side of the cleaning brush plate 6243 fits against the outer side of the dustproof net 5 to sweep away dust and debris. The cleaning brush plate 6243 is connected to the mounting bracket 6241 via a telescopic spring 6242. During the cleaning and brushing process, the telescopic spring 6242 can always provide elasticity, so that the brush on the cleaning brush plate 6243 can be stably fitted against the outer surface of the dustproof net 5, thereby having a better cleaning function and ensuring its overall cleaning effect. It can be seen that this device uses Opteon™ SF33 and Vertrel™ XF as phase change materials, and uses their clear boiling point temperature and high latent heat capacity characteristics to achieve precise temperature triggering and efficient heat exchange. When the ambient temperature reaches the boiling point of the phase change material, the material quickly changes phase to absorb a large amount of heat, effectively delaying the temperature rise rate inside the box 1. The precise temperature triggering mechanism ensures that the protective mechanism 6 starts sealing in time at high temperatures and automatically releases at low temperatures to avoid excessive heat dissipation or insufficient heat dissipation. Both phase change materials have excellent chemical stability and long-term repeated phase change performance, and can withstand a large number of phase change cycles with low performance attenuation. In complex outdoor environments, the telescopic mechanism 3 can be used for a long time without any problems due to the stable characteristics of the phase change material. The double-layer sealing structure of the protective mechanism 6, in conjunction with the dust screen 5 and the automatic cleaning function of the cleaning module 62, provides the box 1 with a high level of protection, significantly improving the operational reliability of the equipment in extreme environments. The telescopic mechanism 3 driven by the phase change material does not require electric drive, saving energy compared to traditional electric temperature control devices. At the same time, Opteon™ SF33 and Vertrel™ XF are both non-toxic and environmentally friendly materials with an ODP (ozone depletion potential) of 0 and a low GWP (global warming potential). Leakage is harmless to the human body and the environment, meeting environmental protection requirements. In addition, the automatic cleaning and sealing functions of the equipment reduce the frequency of manual maintenance and lower the overall cost of use.

[0025] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A photovoltaic energy storage charging station energy management system, characterized by; The invention comprises a box body (1), a management module (2) is fixedly installed in the box body (1), a telescopic mechanism (3) is fixedly installed on the back of the box body (1), and protective mechanisms (6) are fixedly installed on both sides of the outer ends of the telescopic mechanism (3), heat dissipation grooves (4) are opened on both sides of the box body (1), a dustproof net (5) is fixedly installed inside the heat dissipation groove (4), and the protective mechanism (6) is covered on the outside of the dustproof net (5), and a sealing cover plate (7) is installed on the front of the box body (1) by bolts; The telescopic mechanism (3) includes a heat-conducting seat (31), the top and bottom ends of the middle portion of the heat-conducting seat (31) are fixedly mounted with a piston sleeve (32), the interior of the piston sleeve (32) is filled with a liquid phase-change material, the interior of the piston sleeve (32) is slidably connected to a piston rod (33), the outer end of the piston rod (33) is fixedly mounted with a connecting frame (34), and the protective mechanism (6) is fixedly mounted at both ends of the connecting frame (34).

2. The photovoltaic energy storage charging station energy management system according to claim 1, characterized in that: The protective mechanism (6) comprises a trough (61) and a cleaning module (62), wherein the trough (61) is provided on both sides of the top of the box (1) and on both sides of the bottom of the box (1), the inner end of the trough (61) passes through the box (1), the interior of the trough (61) is slidably connected to a blocking plate (63), the blocking plate (63) covers the inner side of the dustproof net (5), the outer side of the blocking plate (63) is fixedly connected to the inner side of the connecting frame (34), the outer side of the blocking plate (63) is fixedly connected to a sealing plate (64), and the sealing plate (64) covers the outer side of the trough (61).

3. The photovoltaic energy storage charging station energy management system according to claim 2, characterized in that: The cleaning module (62) comprises a slide (621), the slide (621) being fixedly mounted on the outer end of the connecting frame (34), the inner middle portion of the slide (621) being rotatably connected to a rotating shaft (622), the inner side of the rotating shaft (622) being fixedly connected to a transmission group (623), the inner side of the transmission group (623) being fixedly connected to a cleaning group (624), the inner side of the cleaning group (624) being in close contact with the outer side of the dustproof net (5).

4. The photovoltaic energy storage charging station energy management system according to claim 3, characterized in that: The transmission group (623) comprises a fixed column (6231) and a gear (6232); the fixed column (6231) is fixedly mounted on the upper and lower ends of the outer side of the dust screen (5); a rack (6233) is fixedly mounted on the outer side of the fixed column (6231); the gear (6232) is fixedly mounted on the outer end of the rotating shaft (622); and the gear (6232) and the rack (6233) are meshed and connected.

5. The photovoltaic energy storage charging station energy management system according to claim 4, characterized in that: The cleaning group (624) comprises a mounting frame (6241), wherein the mounting frame (6241) is arranged in a ring shape at equal intervals and fixedly mounted on the outer surface of the rotating shaft (622), and the inner side of the mounting frame (6241) is fixedly connected with a telescopic spring (6242) arranged in a linear manner at equal intervals, and the end of the telescopic spring (6242) is fixedly connected with a cleaning brush plate (6243), and the brush on the inner side of the cleaning brush plate (6243) is in contact with the outer side of the dustproof net (5).

6. The photovoltaic energy storage charging station energy management system according to claim 5, characterized in that: Support shafts (6244) are fixedly connected to the outside of the cleaning brush plate (6243) at equal intervals, and the outer ends of the support shafts (6244) pass through the mounting frame (6241).

7. The photovoltaic energy storage charging station energy management system according to claim 3, characterized in that: Support rails (6245) are fixedly installed at both ends of the box body (1), and both ends of the slide seat (621) are fixedly connected to support sliders (6246). The support sliders (6246) are slidably connected to the inner sides of the support rails (6245).

8. The photovoltaic energy storage charging station energy management system according to claim 7, characterized in that: Guide rails (65) are fixedly installed at both ends of the front and rear sides of the box body (1), and the blocking plate (63) is slidably connected to the inside of the guide rails (65).

9. The photovoltaic energy storage charging station energy management system according to claim 1, characterized in that: Mounting columns (8) are fixedly mounted at the four corners of the back of the box (1), and a mounting frame (9) is fixedly mounted at the rear end of the mounting columns (8). Mounting holes (10) are provided in the middle of the top, the middle of the bottom, and the middle of both sides of the mounting frame (9), and the mounting holes (10) are configured as countersunk holes.

10. A photovoltaic energy storage charging station energy management control method, using the photovoltaic energy storage charging station energy management system according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Equipment integration and installation: In the energy management system box (1), each component is fixedly installed according to the functional area. The controller, MPLC module and I / O module are installed in the main control area. The three are connected through internal lines. The MPLC module and I / O module serve as expansion units of the controller for signal processing and command output. The fuse, lightning arrester and circuit breaker are installed in the power line access area. The fuse and circuit breaker are connected in series in the power supply circuit, and the lightning arrester is connected in parallel to the main line entrance. The fiber optic box and switch are installed in the data transmission area. The fiber optic box has a reserved fiber optic interface. The switch is connected to the controller and other communication equipment through a network cable. The power module is installed in an independent power supply area to provide stable power for each component and ensure that the relative position of each component meets the electrical safety distance standard. Step 2: Connect and configure the circuits. Connect the power module output to the fuse, lightning arrester, and circuit breaker to form the main power supply circuit. Connect the circuit breaker output to the power supply ports of power-consuming devices such as the controller, MPLC module, I / O module, and switch. Use optical fiber to connect the fiber optic box to external data acquisition equipment and monitoring terminals to achieve remote data exchange. Use network cables to connect the switch to the controller, MPLC module, and I / O module to establish a data link and build an internal data communication network for the equipment. After completing the circuit connection, configure basic parameters such as IP addresses and communication protocols for the controller, MPLC module, and switch to ensure normal data transmission between devices. Step 3: Assemble the telescopic mechanism (3). Install a heat-conducting seat (31) on the back of the box (1). Use aluminum or copper heat-conducting seat (31) to ensure thermal conductivity and fit it tightly to the back of the box (1). Fix the piston sleeve (32) at the top and bottom of the middle part of the heat-conducting seat (31). Fill the interior of the piston sleeve (32) with Opteon™ SF33 or Vertrel™ XF liquid phase change material. Install the piston rod (33) in the piston sleeve (32) to ensure that it can slide freely. Fix the connecting frame (34) at the outer end of the piston rod (33). The two ends of the connecting frame (34) are fixed to the protective mechanism (6) to ensure a stable connection. Complete the overall assembly of the telescopic mechanism (3). Step 4: Install the protection and cleaning mechanism. Open the trough (61) on both sides of the top and bottom of the box (1). The trough (61) passes through the box (1) and the guide rail (65) is installed inside. The blocking plate (63) is fixedly connected to the inner side of the connecting frame (34) so that the blocking plate (63) can slide along the guide rail (65) in the trough (61) and can cover the inner side of the dustproof net (5). The sealing plate (64) is fixed on the outside of the blocking plate (63) to ensure that the sealing plate (64) can cover the outside of the trough (61). Install the slide (621) on the outer end of the connecting frame (34), install the supporting slider (6246) at both ends of the slide (621), and connect the supporting slider (6246) with the The supporting rails (6245) on both sides of the box body (1) are slidably connected; a rotating shaft (622) is installed in the middle of the inner side of the slide (621), a gear (6232) is fixed on the outer end of the rotating shaft (622), and a fixing column (6231) is installed at the upper and lower ends of the outer side of the dust screen (5) and a rack (6233) is set, so that the gear (6232) and the rack (6233) are engaged; a transmission group (623) and a cleaning group (624) are installed at the inner end of the rotating shaft (622), and a cleaning brush plate (6243) of the cleaning group (624) is connected to the mounting frame (6241) through a telescopic spring (6242) to ensure that the brush of the cleaning brush plate (6243) fits the outer side of the dust screen (5); Step 5: System initialization test: Turn on the power and start the system. The controller uses the MPLC module and I / O module to check the status of the fuse, lightning arrester, and circuit breaker to determine whether there are any abnormalities such as short circuit, overload, or lightning arrester failure. Detect the data transmission status between the switch and the optical fiber box, and check whether each communication link is unobstructed; read the initial position signals of the telescopic mechanism (3), the protective mechanism (6) and the cleaning module (62), and confirm that they are in the standby state. If an abnormality is detected, output a fault code through the display screen or the communication port; Step 6: Energy monitoring and data acquisition. During the operation of the system, the controller collects various data of the photovoltaic energy storage charging station in real time through the MPLC module and the I / O module, collects the photovoltaic panel power generation, the energy storage battery charge and discharge status and voltage and current parameters, and receives the charging pile power consumption data through the optical fiber box and the switch; monitors the fuse current, the lightning arrester working status, the circuit breaker opening and closing status and other power equipment parameters; at the same time, the temperature sensor installed inside the box (1) transmits the ambient temperature data to the controller to provide a basis for subsequent control; Step 7: Temperature adaptive control. When the temperature data received by the controller shows that the external ambient temperature of the box (1) rises to a temperature close to or above the boiling point of the phase change material (33°C for Opteon™ SF33 and 33°C for Vertrel™ XF When the temperature is 55°C), the heat conducting seat (31) conducts heat to the piston sleeve (32), the phase change material changes from liquid to gas, and the volume expansion pushes the piston rod (33) to slide outward, the piston rod (33) drives the connecting frame (34) to move, and the connecting frame (34) drives the blocking plate (63) to be withdrawn from the tank body (61), opening the heat dissipation slot (4) and the dustproof net (5), thereby enhancing the ventilation and heat dissipation inside the box body (1); at the same time, the movement of the connecting frame (34) drives the cleaning module (62) to operate, and the cleaning brush plate (6243) moves in a circular motion around the rotating shaft (622) to clean the dust on the surface of the dustproof net (5); when the temperature drops below the boiling point of the phase change material, the phase change material condenses back to liquid, the piston rod (33) retracts, the blocking plate (63) reseals the heat dissipation slot (4), and the cleaning module (62) is reset; Step 8: Intelligent control of power equipment. The controller intelligently controls fuses, lightning arresters, and circuit breakers based on collected power data. When a circuit overload or short circuit is detected, the controller sends a command through the I / O module to trip the circuit breaker and cut off the faulty circuit. The controller also monitors the working status of the lightning arrester in real time. If a lightning surge signal is detected, the lightning arrester will be triggered to start protection and the abnormal event will be recorded. The MPLC module continuously monitors the fuse current. When the current exceeds the rated value, an early warning signal is issued to prompt maintenance personnel to check and replace the fuse. Step 9: Data processing and remote communication. The controller analyzes and processes the collected data, performs data calculations and logical judgments through the MPLC module, generates energy management strategies, and uploads the processed data to the remote monitoring center through the fiber optic box and switch. This allows for remote real-time viewing of equipment operating status and historical data query. The controller receives control commands from the remote monitoring center, such as adjusting the energy storage battery charging and discharging strategies and controlling the start and stop of charging piles, and executes corresponding operations through the I / O module. Step 10: Power failure protection and emergency handling. When a power failure is detected in the equipment, the controller immediately starts the emergency procedure. On the one hand, the temperature drops to liquefy the phase change material, and the piston rod (33) retracts to drive the sealing plate (63) to slide, sealing the heat dissipation slot (4) to prevent moisture from invading the box (1). On the other hand, the current important data, such as the remaining power of the energy storage battery and the equipment operating parameters, are saved through the I / O module. At the same time, the backup power supply is used to maintain the short-term operation of the controller, MPLC module and communication module, and the power failure information is sent to the remote monitoring center. After the power supply is restored, the system self-checks and data recovery are automatically performed to ensure the normal operation of the equipment.

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