Charging pile spontaneous combustion prevention device capable of dissipating heat

Abstract

The invention relates to the technical field of spontaneous combustion prevention devices, and discloses a heat-dissipation charging pile spontaneous combustion prevention device which comprises a movable rod slidably connected to the inner wall of a spray head, a plurality of fixing plates are fixedly connected to the outer wall of the movable rod, and reset springs are fixedly connected to the outer walls of the fixing plates; the movable rod can move away from the limiting ring under the action of the medicament, the end, close to the ejector pin, of the movable rod can be extruded out of the spray head through the medicament, meanwhile, the medicament can be output outwards through a gap between the movable rod and the spray head, and the movable rod can gradually move away from the limiting ring along with gradual increase of the gas amount in the gas chamber. And when the guide surface I is not exposed out of the spray head, the gap between the movable rod and the spray head points to the fire source, so that the medicament firstly extinguishes the fire source at the moment.

Description

A heat-dissipating charging pile anti-self-ignition device Technical Field

[0001] This invention relates to the field of anti-spontaneous combustion devices, specifically an anti-spontaneous combustion device for a heat-dissipating charging pile. Background Technology

[0002] With the widespread adoption of new energy electric vehicles, charging piles, as core supporting infrastructure, have been deployed in diverse locations including urban residential areas, highway service areas, and outdoor parking lots. However, under high load operation, key components such as power modules, charging guns, and battery interfaces generate significant heat. Combined with complex outdoor conditions such as high temperatures, humidity, and dust, the risks of thermal runaway and spontaneous combustion are becoming increasingly prominent. Lithium batteries experience high temperatures during thermal runaway, releasing large amounts of flammable and toxic gases, which traditional firefighting methods struggle to effectively contain. This has driven the development of integrated devices that combine efficient heat dissipation with reliable spontaneous combustion prevention, becoming a core requirement for ensuring the safe operation of charging piles. Among these, non-storage perfluorohexanone (PFH) fire extinguishing devices, with their inherent safety advantage of atmospheric pressure storage, avoid the explosion risks of high-pressure cylinders associated with pressurized devices, the costs of hazardous materials transportation, and the need for annual pressure testing. They also have lower maintenance costs, are compact, and require less installation space. They can be flexibly deployed inside charging pile cabinets using adhesive or screws, making them suitable for confined installation scenarios and becoming the mainstream choice for charging pile protection.

[0003] In actual use, when spontaneous combustion occurs inside a charging pile, it usually starts in a single component and then gradually spreads to its surroundings. Since most fire extinguishing devices primarily use their built-in gas generators to produce a large amount of gas, which pushes an internal piston to expel the extinguishing agent, the coverage area of ​​the agent is usually large initially. However, as the amount of gas produced decreases, the coverage area gradually decreases. This can cause the fire source to spread to the surrounding areas, leading to increased damage and reduced protection effectiveness. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a heat-dissipating charging pile anti-spontaneous combustion device, including a charging pile shell, a charging pile top cover fixedly connected to the outer wall of the charging pile shell, and further including: a fire extinguishing mechanism, the outer wall of the fire extinguishing mechanism being fixedly connected to the outer wall of the charging pile top cover, the fire extinguishing mechanism being used to extinguish spontaneously combusting components inside the charging pile in a timely manner; a guiding mechanism, the outer wall of the guiding mechanism being slidably connected to the inner wall of the fire extinguishing mechanism, the guiding mechanism being used to guide the fire extinguishing agent; a restricting mechanism, the outer wall of the restricting mechanism being fixedly connected to the inner wall of the fire extinguishing mechanism, the restricting mechanism being used to restrict the movement of some components within the guiding mechanism; a plurality of fire extinguishing shells are fixedly connected to the outer wall of the charging pile top cover, a gas reaction device is fixedly connected to the inner wall of the plurality of fire extinguishing shells, and two gas chambers are opened in the inner wall of the plurality of fire extinguishing shells; wherein, according to actual needs, a plurality of fire extinguishing shells are set in the bottom inner wall of the charging pile top cover, and the two gas chambers are opened on both sides of the gas reaction device.

[0005] In use, first install the fire extinguishing housing on the top inner wall of the charging pile. Simultaneously, position the output component directly opposite the location within the charging pile prone to spontaneous combustion. Multiple units can be installed depending on their internal size and the number of components. After installation, connect these units in series and then connect them to a sensing device. When the sensing device detects a fire, it sends a signal to the unit. Upon receiving the signal, the unit begins extinguishing the fire. Preferably, the fire extinguishing mechanism includes: a starting component, the outer wall of which is slidably connected to the inner wall of the fire extinguishing housing; a gas reaction device that, upon receiving the signal, rapidly activates and releases a large amount of gas, driving the starting component; and an output component, the outer wall of which is fixedly connected to the inner wall of the fire extinguishing housing.

[0006] Preferably, the guiding mechanism includes: a movable component, the outer wall of which is slidably connected to the inner wall of the output component; and a guiding component, the outer wall of which is fixedly connected to the outer wall of the movable component; wherein, when the high-pressure agent reaches the interior of the output component, it will compress the components in the movable component to cause it to move.

[0007] Preferably, the limiting mechanism includes: a blocking component, the outer wall of which is fixedly connected to the inner wall of the output component; and a limiting component, the outer wall of which is fixedly connected to the outer wall of the blocking component; wherein the blocking component is used to restrict some parts of the moving component, and the limiting component is used to restrict the movement of the blocking component.

[0008] In practical use, when spontaneous combustion occurs inside a charging pile, it typically ignites locally at the location of the high-flammability element first, then spreads to the surrounding area. Existing conventional fire extinguishing devices usually produce a large atomization range upon initial activation, but as output continues, the gas volume in the chamber gradually decreases, resulting in insufficient agent output pressure. This causes the atomization range to gradually concentrate towards the fire source during final extinguishing, creating a large-to-small extinguishing range. This method cannot extinguish the fire source immediately upon its appearance, leading to the fire spreading and causing unnecessary damage. Preferably, the activation component includes two agent chambers located on the inner wall of the fire extinguishing casing. A piston is slidably connected to the inner wall of the device; when the signal reaches the gas reaction device, the gas reaction device will react immediately and generate a large amount of gas, causing the gas chambers on both sides of the gas reaction device to quickly fill with gas. When the gas chambers on both sides are filled with gas, the gas pressure will rise rapidly, thereby pushing the pistons on both sides, causing them to slide along the inner wall of the agent chamber away from the gas reaction device; preferably, the output component includes two adapters fixedly connected to the outer wall of the fire extinguishing shell, and nozzles are engaged with the inner walls of the two adapters, with a limiting ring fixedly connected to the inner wall of the nozzle; furthermore, under the action of the piston, the agent in the agent chamber will be pushed towards the adapter, and then reach the nozzle. As the amount of agent reaching the nozzle gradually increases, the nozzle is subjected to The pressure will gradually increase; preferably, the movable component includes a movable rod slidably connected to the inner wall of the nozzle, several fixed plates are fixedly connected to the outer wall of the movable rod, and a return spring is fixedly connected to the outer wall of the fixed plate; the movable rod located inside the nozzle will be pressed tightly against the limiting ring under the action of the return spring, thus initially blocking the agent at the end of the limiting ring near the adapter. As the pressure gradually increases, the pressure exerted by the agent on the movable rod is greater than the pressure of the return spring on the fixed plate, which will push the movable rod away from the limiting ring. At the same time, the agent will pass through the gap created between the limiting ring and the movable rod, at which point the return spring begins to be compressed; using the above mechanism, when the agent is about to be released, due to the gas in the gas chamber at the end of the extinguishing process... As the volume of the agent gradually decreases, the pressure at the end of the nozzle may become insufficient. Insufficient pressure between the nozzle and the moving rod can cause some of the agent to drip down the nozzle or moving rod, failing to cover the fire source and affecting the extinguishing effect. However, as the end pressure decreases, the moving rod moves towards the return spring. Due to the shape of the moving rod, the gap between the nozzle and the moving rod decreases as the rod moves. This reduced gap makes it more difficult for the agent to pass through, decreasing the amount of agent that passes through. This reduces the amount of agent that drips down the nozzle and moving rod due to insufficient pressure, thus enhancing the extinguishing effect.

[0009] Preferably, the guiding assembly includes a pin fixedly connected to the outer wall of the movable rod. A first guiding surface and a second guiding surface are provided on the outer wall of the movable rod. With further movement, the first guiding surface protrudes from the nozzle. At this point, the agent, under the action of the first guiding surface, begins to expand its atomization range, causing the agent to initially isolate a small area around the fire source. As the movable rod continues to move under the action of the agent, the second guiding surface protrudes from the nozzle. Under the action of the second guiding surface, the coverage area of ​​the agent further expands, thus further isolating the fire source. The system isolates a wider area around the fire source. Through this mechanism, when a fire source appears, it first extinguishes the fire at the location of the fire, then gradually expands the coverage area of ​​the agent. This isolates the air around the fire source, reducing the possibility of the fire spreading and enhancing the protection of the charging station. Utilizing the operating mechanism of the above-mentioned structure, under the gas pressure in the gas chamber, the agent is sprayed through the adapter and nozzle. Due to the high initial pressure and the constant increase in gas production from the gas reaction device, the space between the agent chamber and the gas chamber gradually increases. Towards the end... At the end, the kinetic energy of the agent decreases by a certain amount, resulting in a gradual change in its kinetic energy from start to finish. This change in kinetic energy alters its atomization effect, leading to variations in its stability and uniformity when extinguishing a fire. During the agent's spraying process, the pressure on the movable rod changes with the agent's kinetic energy. Under the action of the return spring, the movable rod protrudes beyond the nozzle at different distances depending on the agent's movement. Due to the different inclinations of guide surfaces one and two, the movable rod and the nozzle... The gaps between them will also change accordingly, thereby stabilizing the stability and uniformity of the agent to a certain extent and enhancing its fire extinguishing effect; preferably, the blocking component includes a rupture disc fixedly connected to the inner wall of the nozzle, two slots are opened on the inner wall of the nozzle, and a rotating rod is rotatably connected to the inner wall of the nozzle; as the moving rod moves, it will drive the ejector pin to move to the rupture disc, and the rupture disc will block the ejector pin to a certain extent. When the pressure of the agent accumulates to a certain level, the ejector pin will be under greater pressure, which will drive the ejector pin to rupture the rupture disc.After the rupture disc breaks apart, it can no longer restrain the ejector pin. Simultaneously, the explosive agent, following the breakup of the disc, is released outwards through the gap between the movable rod and the nozzle, initiating timely fire suppression at the location of the fire. As the disc breaks, the movable rod, under the influence of the explosive agent, moves away from the restraining ring. The end of the movable rod near the ejector pin is forced out of the nozzle by the explosive agent. Simultaneously, the explosive agent is released outwards through the gap between the movable rod and the nozzle. As the gas volume in the gas chamber gradually increases, the movable rod gradually moves away from the restraining ring. When the guide surface is no longer exposed outside the nozzle, the gap between the movable rod and the nozzle will point towards the fire source, allowing the explosive agent to initially extinguish the fire. First, extinguish the fire source; preferably, the limiting component includes a limiting rod fixedly connected to the outer wall of the rotating rod, a limiting groove is opened on the inner wall of the nozzle, and a limiting ball is placed on the inner wall of the limiting groove; because the increase in gas generated by the gas reaction device will gradually decrease during actual use, the movable rod will retract towards the limiting ring under the action of the return spring, causing the gap between the nozzle and the movable rod to decrease. At this time, due to the reduced gap between the nozzle and the movable rod, some of the agent will remain between the nozzle and the movable rod, resulting in waste of the agent. At this time, when the rupture disc breaks, the fixed plate will begin to move towards the fixed plate under the action of its generated gravity and the movable rod. When the nozzle rotates outward, the rotating rod rotates, causing the limiting rod to rotate as well. Simultaneously, under the constraint of the movable rod, the limiting rod will adhere to the outer wall of the movable rod. When the movable rod moves to its maximum distance, the limiting rod will adhere to the outer wall of the movable rod between the guide surface and the fixed plate. Near the connection between the rotating rod and the nozzle, there is a protrusion. When the rotating rod rotates, it causes the protrusion to rotate as well. When the protrusion rotates, the limiting groove will lift the limiting ball. After the protrusion passes the limiting groove, the limiting ball will fall back into the lowest point of the limiting groove. When the fire extinguishing is about to end, the pressure of the agent decreases, and under the action of the return spring, the movable rod will retract towards the limiting ring. At this time, when the movable rod retracts, the limiting... The control rod remains attached to its outer wall. When the second guide surface contacts the limiting rod, it causes the limiting rod to begin rotating towards the inner wall of the nozzle, simultaneously causing the rotating rod to rotate as well. The rotation of the rotating rod causes the protrusion it is equipped with to rotate as well. When the protrusion rotates to the limiting groove, it is restricted by the limiting ball, preventing the rotating rod from continuing to rotate. This causes the limiting rod to jam against the second guide surface, preventing the movable rod from moving further. At this time, the first guide surface on the movable rod is still exposed outside the nozzle, allowing any residual agent inside the nozzle to still be sprayed out through the first guide surface. This reduces the amount of agent residue inside the nozzle, reduces the frequency and difficulty of maintenance, and improves the reliability of reuse.

[0010] The present invention has the following beneficial effects: (1) In actual use, under normal circumstances, after spontaneous combustion occurs inside the charging pile, it will first ignite locally at the location of the high spontaneous combustion element, and then spread to the surrounding area. However, conventional fire extinguishers usually have a large atomization range when they are first started. After that, as the output continues, the amount of gas in the gas chamber will gradually decrease, and the pressure of the agent output will be insufficient. As a result, the atomization range will gradually concentrate towards the fire source when the fire is extinguished at the end, forming a fire extinguishing range that is large at first and then small. This fire extinguishing method cannot extinguish the fire source in time when the fire source appears, and the fire source will spread to the surrounding area, causing unnecessary losses. When a fire source appears, the mechanism will first extinguish the fire at the location of the fire source, and then gradually expand the coverage of the agent so that the agent will isolate the air around the fire source, reduce the possibility of the fire source spreading to the surroundings, and enhance the protection of the charging pile; (2) In actual use, the amount of gas generated by the gas reaction device will gradually decrease, which will cause the movable rod to retract towards the limiting ring under the action of the reset spring, resulting in a reduction in the gap between the nozzle and the movable rod. At this time, due to the reduction in the gap between the nozzle and the movable rod, some of the agent will remain between the nozzle and the movable rod, thus causing waste of the agent. Through the operation mechanism of the guiding mechanism and the limiting mechanism, thus Reduce the amount of agent residue in the nozzle, reduce the number of maintenance times and difficulty, and improve the reliability of reuse; (3) The present invention utilizes the operating mechanism of the above mechanism. Under the action of the gas pressure in the gas chamber, the agent will be sprayed out through the adapter and nozzle. Due to the large initial pressure and the constant increase in gas generated by the gas reaction device, the space between the agent chamber and the gas chamber gradually increases. At the end, the power of the agent will decrease by a certain amount. This results in the agent's kinetic energy gradually changing from the beginning to the end. The change in the agent's kinetic energy will cause a change in its atomization effect, resulting in a certain change in its stability and uniformity when extinguishing fire sources. Through the extinguishing mechanism and the guiding mechanism The operating mechanism of the above mechanism stabilizes the stability and uniformity of the agent to a certain extent and enhances its fire extinguishing effect; (4) The present invention utilizes the operating mechanism of the above mechanism. When the agent is about to be released, the amount of gas increase in the gas chamber at the end of the fire extinguishing will gradually decrease, which may cause insufficient agent pressure at the end. The agent pressure between the nozzle and the movable rod is insufficient, causing some agent to drip along the nozzle or movable rod due to insufficient pressure, resulting in this part of the agent not being able to cover the fire source and affecting the actual fire extinguishing effect; through the interaction between the reset spring and the guiding mechanism, the amount of agent that will drip along the nozzle and movable rod due to insufficient pressure is reduced, thereby enhancing the fire extinguishing effect of the agent. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional schematic diagram of the overall structure of the present invention; Figure 3 is a cross-sectional schematic diagram of the fire extinguishing mechanism of the present invention; Figure 4 is a cross-sectional schematic diagram of the output component of the present invention; Figure 5 is a cross-sectional schematic diagram of the guiding mechanism of the present invention; Figure 6 is a cross-sectional schematic diagram of the guiding component of the present invention; Figure 7 is a cross-sectional schematic diagram of the limiting mechanism of the present invention; Figure 8 is an enlarged schematic diagram of point A in Figure 7 of the present invention.

[0013] The components represented by each number in the attached diagram are listed below: 1. Fire extinguishing mechanism; 2. Guiding mechanism; 3. Restricting mechanism; 11. Activation assembly; 12. Output assembly; 13. Electric pile housing; 14. Electric pile top cover; 21. Movable assembly; 22. Guiding assembly; 31. Barrier assembly; 32. Restricting assembly; 111. Fire extinguishing housing; 112. Gas reaction device; 113. Gas chamber; 114. Agent chamber; 115. Piston; 121. Adapter; 122. Nozzle; 123. Restricting ring; 211. Movable rod; 212. Fixing plate; 213. Return spring; 221. Pin; 222. Guide surface one; 223. Guide surface two; 311. Rupture disc; 312. Groove; 313. Rotating rod; 321. Restricting rod; 322. Restricting groove; 323. Restricting ball. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Example 1, please refer to Figures 1-8. This invention is a heat-dissipating charging pile anti-spontaneous combustion device, including a charging pile shell 13, with a charging pile top cover 14 fixedly connected to the outer wall of the charging pile shell 13, and further including: a fire extinguishing mechanism 1, the outer wall of the fire extinguishing mechanism 1 being fixedly connected to the outer wall of the charging pile top cover 14, the fire extinguishing mechanism 1 being used to extinguish spontaneously combusting components inside the charging pile in a timely manner; a guiding mechanism 2, the outer wall of the guiding mechanism 2 being slidably connected to the inner wall of the fire extinguishing mechanism 1, the guiding mechanism 2 being used to guide the fire extinguishing agent; and a restricting mechanism 3, the outer wall of the restricting mechanism 3 being... The limiting mechanism 3 is fixedly connected to the inner wall of the fire extinguishing mechanism 1 and is used to limit the movement of some components in the guiding mechanism 2. Several fire extinguishing shells 111 are fixedly connected to the outer wall of the charging pile top cover 14, and a gas reaction device 112 is fixedly connected to the inner wall of the several fire extinguishing shells 111. Two gas chambers 113 are opened on the inner wall of the several fire extinguishing shells 111. According to actual needs, several fire extinguishing shells 111 are set on the bottom inner wall of the charging pile top cover 14, and the two gas chambers 113 are opened on both sides of the gas reaction device 112.

[0016] In use, the fire extinguishing housing 111 is first installed on the top inner wall of the charging pile. At the same time, the output component 12 is positioned directly in front of the location inside the charging pile where spontaneous combustion is likely to occur. Multiple such devices can be installed depending on their internal size and the number of components. After installation, these devices are connected in series and then connected to the sensing device. When the sensing device detects a fire such as spontaneous combustion, it sends a signal to the device. Upon receiving the signal, the device begins to extinguish the fire. The fire extinguishing mechanism 1 includes: an activation component 11, the outer wall of which is slidably connected to the inner wall of the fire extinguishing housing 111; the gas reaction device 112, upon receiving the signal, quickly activates and releases a large amount of gas, driving the activation component 11; and an output component 12, the outer wall of which is fixedly connected to the inner wall of the fire extinguishing housing 111.

[0017] The guiding mechanism 2 includes: a movable component 21, the outer wall of which is slidably connected to the inner wall of the output component 12; and a guiding component 22, the outer wall of which is fixedly connected to the outer wall of the movable component 21. When the high-pressure agent reaches the interior of the output component 12, it will compress the components in the movable component 21 to make it start to move.

[0018] The limiting mechanism 3 includes: a blocking component 31, the outer wall of which is fixedly connected to the inner wall of the output component 12; and a limiting component 32, the outer wall of which is fixedly connected to the outer wall of the blocking component 31. The blocking component 31 is used to limit some parts of the moving component 21, while the limiting component 32 is used to limit the movement of the blocking component 31.

[0019] In actual use, when spontaneous combustion occurs inside a charging pile, it typically ignites locally at the location of the high-flammability element first, then spreads to the surrounding area. Existing conventional fire extinguishers usually produce a large atomization range upon initial activation, but as output continues, the gas volume in the gas chamber 113 gradually decreases, resulting in insufficient agent output pressure. This causes the atomization range to gradually concentrate towards the fire source during final extinguishing, creating a large-to-small extinguishing range. This method cannot extinguish the fire source immediately upon its appearance, leading to the fire spreading and causing unnecessary damage. The activation component 11 includes two agent chambers 114 located on the inner wall of the extinguishing housing 111. Pistons 115 are slidably connected to the inner walls of the two agent chambers 114; when a signal reaches the gas reaction device 112, the gas reaction device 112 will react immediately and generate a large amount of gas, causing the gas chambers 113 on both sides of the gas reaction device 112 to quickly fill with gas. When the gas chambers 113 on both sides are filled with gas, the gas pressure will rise rapidly, thereby pushing the pistons 115 on both sides, causing them to slide along the inner wall of the agent chambers 114 away from the gas reaction device 112; the output assembly 12 includes two adapters 121 fixedly connected to the outer wall of the fire extinguishing housing 111, and nozzles 122 are engaged with the inner walls of the two adapters 121. A limiting ring 123 is fixedly connected to the inner wall of the nozzle 122; furthermore, Under the action of piston 115, the agent in the agent chamber 114 is pushed towards the adapter 121, and then reaches the nozzle 122. As the amount of agent reaching the nozzle 122 gradually increases, the pressure on the nozzle 122 also gradually increases. The movable component 21 includes a movable rod 211 slidably connected to the inner wall of the nozzle 122. Several fixed plates 212 are fixedly connected to the outer wall of the movable rod 211, and a return spring 213 is fixedly connected to the outer wall of the fixed plates 212. The movable rod 211 located inside the nozzle 122 will be pressed against the limiting ring 123 under the action of the return spring 213, thereby initially blocking the agent at the end of the limiting ring 123 near the adapter 121. As the pressure gradually increases, the agent will press against the movable rod 211. When the pressure applied by rod 211 exceeds the pressure of return spring 213 on fixed plate 212, it will push movable rod 211 away from limiting ring 123. At the same time, the agent will pass through the gap between limiting ring 123 and movable rod 211. At this time, return spring 213 will begin to be compressed. Using the above mechanism, when the agent is about to be released, the increase in gas in gas chamber 113 at the end of the fire extinguishing process will gradually decrease. This may result in insufficient agent pressure at the end. The agent pressure between nozzle 122 and movable rod 211 may be insufficient, causing some agent to drip along nozzle 122 or movable rod 211 due to insufficient pressure. This part of the agent cannot cover the fire source, affecting the actual fire extinguishing effect.At this time, when the end pressure decreases, under the action of the return spring 213, the movable rod 211 will begin to move closer to the return spring 213. Due to the shape of the movable rod 211, the gap between the nozzle 122 and the movable rod 211 will decrease as the movable rod 211 moves. The reduction in gap will increase the difficulty of the agent's passage, resulting in a decrease in the amount of agent passing through. This reduces the amount of agent that will drip down the nozzle 122 and the movable rod 211 due to insufficient pressure, thus enhancing the extinguishing effect of the agent.

[0020] The guiding component 22 includes a pin 221 fixedly connected to the outer wall of the movable rod 211. A first guiding surface 222 and a second guiding surface 223 are provided on the outer wall of the movable rod 211. With further movement, the first guiding surface 222 protrudes from the nozzle 122. At this point, the atomization range of the agent begins to expand under the action of the first guiding surface 222, causing the agent to initially isolate a small area around the fire source. As the movable rod 211 continues to move under the action of the agent, the second guiding surface 223 protrudes from the nozzle 122, and under the action of the second guiding surface 223, the coverage area of ​​the agent further expands. This mechanism isolates a wider area around the fire source. When a fire occurs, it first extinguishes the fire at the source, then gradually expands the coverage area of ​​the agent, isolating the surrounding air and reducing the possibility of the fire spreading, thus enhancing the protection of the charging station. Utilizing the operating mechanism of the above-mentioned mechanism, under the gas pressure within the gas chamber 113, the agent is sprayed through the adapter 121 and nozzle 122. Due to the high initial pressure and the constant increase in gas production from the gas reaction device 112, the space between the agent chamber 114 and the gas chamber 113 gradually increases. Towards the end, the agent... The power of the agent will decrease to a certain extent, which causes the kinetic energy of the agent to gradually change from the beginning to the end. This change in the kinetic energy of the agent will cause changes in its atomization effect, resulting in changes in its stability and uniformity when extinguishing a fire. At this time, during the process of the agent being sprayed, the pressure on the movable rod 211 will also change with the change in the kinetic energy of the agent. Under the action of the return spring 213, the movable rod 211 will protrude from the nozzle 122 at different distances depending on the change in the agent. Under the action of the different inclinations of the guide surface 1 222 and the guide surface 223, the gap between the movable rod 211 and the nozzle 122 will also change accordingly. The movement of the movable rod 211, which is fixedly connected to the inner wall of the nozzle 122, allows for some stability and uniformity of the fire extinguishing agent, thus enhancing its fire extinguishing effect. The movable rod 211 moves, causing the ejector pin 221 to move to the rupture disc 311. The rupture disc 311 provides some obstruction to the ejector pin 221. When the pressure of the fire extinguishing agent accumulates to a certain level, the ejector pin 221 experiences significant pressure, causing it to rupture the rupture disc 311. Once ruptured, the rupture disc 311 can no longer restrain the ejector pin 221. Simultaneously, the fire extinguishing agent, after the rupture disc 311 breaks, is released outwards through the gap between the movable rod 211 and the nozzle 122, thus extinguishing the fire promptly.After the rupture disc 311 breaks, the movable rod 211 will move away from the limiting ring 123 under the action of the explosive. The end of the movable rod 211 near the ejector pin 221 will be squeezed out of the nozzle 122 by the explosive. At the same time, the explosive will be output outward through the gap between the movable rod 211 and the nozzle 122. As the amount of gas in the gas chamber 113 gradually increases, the movable rod 211 will gradually move away from the limiting ring 123. When the guide surface 222 is not exposed outside the nozzle 122, the gap between the movable rod 211 and the nozzle 122 will point towards the ignition source, so that the explosive will first... First, extinguish the fire source; the limiting component 32 includes a limiting rod 321 fixedly connected to the outer wall of the rotating rod 313, a limiting groove 322 is provided on the inner wall of the nozzle 122, and a limiting ball 323 is placed on the inner wall of the limiting groove 322; because the increase in gas generated by the gas reaction device 112 will gradually decrease during actual use, the movable rod 211 will retract towards the limiting ring 123 under the action of the return spring 213, causing the gap between the nozzle 122 and the movable rod 211 to decrease. At this time, the agent will be affected by the gap between the nozzle 122 and the movable rod 211. As the gap decreases, some of the pesticide will remain between the nozzle 122 and the movable rod 211, resulting in pesticide waste. At this point, after the rupture disc 311 breaks, the fixed plate 212 will begin to rotate outwards from the nozzle 122 under its own gravity and the action of the movable rod 211. When the rotating rod 313 rotates, it will cause the limiting rod 321 to rotate as well. Simultaneously, under the constraint of the movable rod 211, the limiting rod 321 will adhere to the outer wall of the movable rod 211. When the movable rod 211 moves to its maximum distance, the limiting rod 321 will adhere to the space between the guide surface 223 and the fixed plate 212. There is a protrusion on the outer wall of the movable rod 211, and near the connection between the rotating rod 313 and the nozzle 122. When the rotating rod 313 rotates, it will drive the protrusion to rotate together. When the protrusion rotates, the limiting groove 322 will push the limiting ball 323 up. After the protrusion passes the limiting groove 322, the limiting ball 323 will fall back into the lowest point in the limiting groove 322. When the fire extinguishing is about to end, the pressure of the agent decreases. Under the action of the return spring 213, the movable rod 211 will retract towards the limiting ring 123. At this time, when the movable rod 211 retracts, the limiting rod 321 is still attached to its outer wall.When the guide surface 223 contacts the limiting rod 321, it causes the limiting rod 321 to rotate towards the inner wall of the nozzle 122, simultaneously causing the rotating rod 313 to rotate as well. The rotation of the rotating rod 313 causes its protrusion to rotate as well. When the protrusion rotates to the limiting groove 322, it is restricted by the limiting ball 323, preventing the rotating rod 313 from continuing to rotate. This causes the limiting rod 321 to jam against the guide surface 223, preventing the movable rod 211 from moving further. At this time, the guide surface 222 on the movable rod 211 remains exposed outside the nozzle 122, allowing any residual agent inside the nozzle 122 to still be sprayed out through the guide surface 222. This reduces the amount of residual agent inside the nozzle 122, decreases the frequency and difficulty of maintenance, and improves the reliability of reuse.

[0021] A specific application of this embodiment is as follows: In use, the fire extinguishing housing 111 is first installed on the top inner wall of the charging pile. Simultaneously, the output component 12 is positioned directly opposite a location within the charging pile prone to spontaneous combustion. Multiple such devices can be installed based on their internal size and the number of components. After installation, these devices are connected in series and interconnected with a sensing device. When the sensing device detects spontaneous combustion or other fires, it sends a signal to the device. Upon receiving the signal, the device begins extinguishing the fire. When the signal reaches the gas reaction device 112, the gas reaction device 112 immediately reacts and generates a large amount of gas, causing the gas chambers 113 on both sides of the gas reaction device 112 to quickly fill with gas. Once the gas chambers 113 are full, the gas pressure rapidly increases, pushing the pistons 115 on both sides, causing them to slide along the inner wall of the agent chamber 114 away from the gas reaction device 112. Furthermore, under the action of the pistons 115, the agent in the agent chamber 114 is pushed towards the adapter 12. 1. The drug then reaches the nozzle 122. As the amount of drug reaching the nozzle 122 gradually increases, the pressure on the nozzle 122 also gradually increases. The movable rod 211 located inside the nozzle 122 will be pressed against the limiting ring 123 by the return spring 213, thus initially blocking the drug at the end of the limiting ring 123 near the adapter 121. As the pressure gradually increases, the pressure exerted by the drug on the movable rod 211 exceeds the pressure of the return spring 213 on the fixed plate 212, and the movable rod will be pushed. 211 moves away from the limiting ring 123, and the agent passes through the gap between the limiting ring 123 and the movable rod 211. At this time, the return spring 213 begins to be compressed. As the movable rod 211 moves, it will drive the ejector pin 221 to move to the rupture disc 311. The rupture disc 311 will block the ejector pin 221 to a certain extent. When the pressure of the agent accumulates to a certain level, the ejector pin 221 will be under greater pressure and will drive the ejector pin 221 to rupture the rupture disc 311. After the rupture disc 311 breaks, it can no longer restrain the pin 221. At the same time, the agent will be output outward along the gap between the movable rod 211 and the nozzle 122 after the rupture disc 311 breaks, and will begin to extinguish the fire in time. In actual use, when spontaneous combustion occurs inside the charging pile, it will first start locally at the high spontaneous combustion element and then spread to the surrounding area. Existing conventional fire extinguishers usually have a large atomization range when they are first activated. After continuous output, the gas increase in the gas chamber 113 will gradually decrease. The pressure of the agent output is not enough, so the atomization range will gradually concentrate towards the fire source when extinguishing the fire at the end. This forms a fire extinguishing range that is large at first and then small. This fire extinguishing method cannot extinguish the fire source in time when it appears. The fire source will spread to the surrounding area, causing unnecessary losses.At this point, after the rupture disc 311 breaks, the movable rod 211 will move away from the limiting ring 123 under the action of the agent. The end of the movable rod 211 near the ejector pin 221 will be squeezed out of the nozzle 122 by the agent. At the same time, the agent will be output outward through the gap between the movable rod 211 and the nozzle 122. As the amount of gas in the gas chamber 113 gradually increases, the movable rod 211 will gradually move away from the limiting ring 123. When the guide surface 222 is not exposed outside the nozzle 122, the gap between the movable rod 211 and the nozzle 122 will point towards the fire source, so that the agent will first extinguish the fire source. With further movement, the guide surface 222 will be exposed outside the nozzle 122. Outside the nozzle 122, the agent, under the action of the guide surface 222, begins to expand its atomization range, thus isolating a small area around the fire source. As the movable rod 211 continues to move under the action of the agent, the guide surface 223 will be exposed outside the nozzle 122. Under the action of the guide surface 223, the coverage area of ​​the agent will be further expanded, thus isolating a larger area around the fire source. Through this mechanism, when a fire source appears, the fire will be extinguished first at the location where the fire source appears, and then the coverage area of ​​the agent will be gradually expanded, so that the agent will isolate the air around the fire source, reduce the possibility of the fire source spreading to the surroundings, and enhance the protection of the charging pile.During actual use, the increase in gas production generated by the gas reaction device 112 gradually decreases. This causes the movable rod 211 to retract towards the limiting ring 123 under the action of the return spring 213, reducing the gap between the nozzle 122 and the movable rod 211. As a result, some of the agent remains between the nozzle 122 and the movable rod 211 due to the reduced gap, leading to agent waste. Furthermore, when the rupture disc 311 breaks, the fixed plate 212 will be subjected to gravity and the action of the movable rod 211... The rotating rod 313 rotates outwards towards the nozzle 122. As the rotating rod 313 rotates, it drives the limiting rod 321 to rotate as well. Simultaneously, under the constraint of the movable rod 211, the limiting rod 321 will adhere to the outer wall of the movable rod 211. When the movable rod 211 moves to its maximum distance, the limiting rod 321 will adhere to the outer wall of the movable rod 211 between the guide surface 223 and the fixed plate 212. Near the connection between the rotating rod 313 and the nozzle 122, there is a protrusion. When the rotating rod 313 rotates, it drives the protrusion to rotate as well. When the protrusion rotates, the limiting groove 322 will restrict the ball 3... 23 is lifted up. After the protrusion passes the limiting groove 322, the limiting ball 323 will fall back into the lowest point of the limiting groove 322. When the fire extinguishing is about to end, the pressure of the agent decreases. Under the action of the return spring 213, the movable rod 211 will retract towards the limiting ring 123. At this time, when the movable rod 211 retracts, the limiting rod 321 is still attached to its outer wall. When the guide surface 223 contacts the limiting rod 321, it will drive the limiting rod 321 to start rotating towards the inner wall of the nozzle 122, and at the same time drive the rotating rod 313 to rotate together. The rotation of the rotating rod 313 will drive its design. The protrusion rotates together with the nozzle. When the protrusion rotates to the limiting groove 322, it will be restricted by the limiting ball 323, which will prevent the rotating rod 313 from continuing to rotate. This will cause the limiting rod 321 to jam with the guide surface 223, preventing the movable rod 211 from moving. At this time, the guide surface 222 on the movable rod 211 is still exposed outside the nozzle 122, so that the residual agent in the nozzle 122 can still be sprayed out through the guide surface 222, thereby reducing the agent residue in the nozzle 122, reducing the number of maintenance times and difficulty, and improving the reliability of reuse.Using the operating mechanism of the above-mentioned mechanism, under the action of gas pressure in gas chamber 113, the agent will be sprayed out through adapter 121 and nozzle 122. Due to the high initial pressure and the constant increase in gas production generated by gas reaction device 112, the space between agent chamber 114 and gas chamber 113 gradually increases. Towards the end, the agent's kinetic energy will decrease by a certain amount, resulting in a gradual change in the agent's kinetic energy from beginning to end. This change in kinetic energy will cause a change in its atomization effect, leading to a certain change in its stability and uniformity when extinguishing a fire source. At this time, during the process of agent spraying, the pressure on the movable rod 211 will also change with the change in the agent's kinetic energy. Under the action of return spring 213, the movable rod 211 will protrude different distances outside the nozzle 122 according to the change in the agent. Under the action of different inclinations of guide surface one 222 and guide surface two 223, the gap between the movable rod 211 and the nozzle 122 will also change accordingly, thus achieving a certain degree of [missing information]. To stabilize the stability and uniformity of the fire extinguishing agent and enhance its extinguishing effect; utilizing the operating mechanism of the above-mentioned mechanism, when the fire extinguishing agent is about to be released, the increase in gas volume in the gas chamber 113 at the end of the extinguishing process will gradually decrease. This may result in insufficient agent pressure at the end, and insufficient pressure between the nozzle 122 and the movable rod 211. This may cause some agent to drip down the nozzle 122 or the movable rod 211 due to insufficient pressure, preventing this part of the agent from covering the fire source and affecting the actual fire extinguishing effect. At this time, when the end pressure decreases, under the action of the return spring 213, the movable rod 211 will begin to move closer to the return spring 213. Due to the shape of the movable rod 211, the gap between the nozzle 122 and the movable rod 211 will decrease as the movable rod 211 moves. The reduction in gap will increase the difficulty of the agent's passage, resulting in a decrease in the amount of agent passing through. This reduces the amount of agent that will drip down the nozzle 122 and the movable rod 211 due to insufficient pressure, thus enhancing the extinguishing effect of the agent.

[0022] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A heat-dissipating charging pile anti-self-ignition device, comprising a charging pile shell (13), wherein a charging pile top cover (14) is fixedly connected to the outer wall of the charging pile shell (13), characterized in that, Also includes: Fire extinguishing mechanism (1), the outer wall of the fire extinguishing mechanism (1) is fixedly connected to the outer wall of the top cover (14) of the electric pile, and the fire extinguishing mechanism (1) is used to extinguish spontaneously combusting components inside the electric pile in a timely manner; guiding mechanism (2), the outer wall of the guiding mechanism (2) is slidably connected to the inner wall of the fire extinguishing mechanism (1), and the guiding mechanism (2) is used to guide the fire extinguishing agent; limiting mechanism (3), the outer wall of the limiting mechanism (3) is fixedly connected to the inner wall of the fire extinguishing mechanism (1), and the limiting mechanism (3) is used to limit the guiding mechanism. (2) Movement of some internal components; Several fire extinguishing shells (111) are fixedly connected to the outer wall of the charging pile top cover (14), and a gas reaction device (112) is fixedly connected to the inner wall of the several fire extinguishing shells (111). Two gas chambers (113) are opened on the inner wall of the several fire extinguishing shells (111); Among them, according to actual needs, several fire extinguishing shells (111) are set on the bottom inner wall of the charging pile top cover (14), and the two gas chambers (113) are opened on both sides of the gas reaction device (112).

2. The heat-dissipating charging pile anti-self-ignition device according to claim 1, characterized in that: The fire extinguishing mechanism (1) includes: an activation component (11), the outer wall of which is slidably connected to the inner wall of the fire extinguishing shell (111); wherein, after receiving a signal, the gas reaction device (112) quickly starts and releases a large amount of gas to drive the activation component (11) to run; and an output component (12), the outer wall of which is fixedly connected to the inner wall of the fire extinguishing shell (111).

3. The heat-dissipating charging pile anti-self-ignition device according to claim 2, characterized in that: The guiding mechanism (2) includes: a movable component (21), the outer wall of which is slidably connected to the inner wall of the output component (12); and a guiding component (22), the outer wall of which is fixedly connected to the outer wall of the movable component (21). When the high-pressure agent reaches the interior of the output component (12), it will press the components in the movable component (21) to make them start to move.

4. The heat-dissipating charging pile anti-self-ignition device according to claim 3, characterized in that: The limiting mechanism (3) includes: a blocking component (31), the outer wall of which is fixedly connected to the inner wall of the output component (12); and a limiting component (32), the outer wall of which is fixedly connected to the outer wall of the blocking component (31). The blocking component (31) is used to restrict some parts of the moving component (21), while the limiting component (32) is used to restrict the movement of the blocking component (31).

5. The heat-dissipating charging pile anti-self-ignition device according to claim 4, characterized in that: The activation component (11) includes two agent chambers (114) located on the inner wall of the fire extinguishing housing (111), and pistons (115) are slidably connected to the inner walls of the two agent chambers (114); wherein the two agent chambers (114) are respectively located at the end of the two gas chambers (113) away from the gas reaction device (112).

6. The heat-dissipating charging pile anti-self-ignition device according to claim 4, characterized in that: The output assembly (12) includes two adapters (121) fixedly connected to the outer wall of the fire extinguishing housing (111), and nozzles (122) are engaged with the inner walls of the two adapters (121). A limiting ring (123) is fixedly connected to the inner wall of the nozzles (122); wherein the two adapters (121) are respectively fixed on both sides of the fire extinguishing housing (111).

7. The heat-dissipating charging pile anti-self-ignition device according to claim 6, characterized in that: The movable component (21) includes a movable rod (211) slidably connected to the inner wall of the nozzle (122). Several fixed plates (212) are fixedly connected to the outer wall of the movable rod (211). A return spring (213) is fixedly connected to the outer wall of the fixed plate (212). The outer wall of the return spring (213) away from the fixed plate (212) is fixedly connected to the inner wall of the nozzle (122).

8. The heat-dissipating charging pile anti-self-ignition device according to claim 7, characterized in that: The guide assembly (22) includes a pin (221) fixedly connected to the outer wall of the movable rod (211). A guide surface one (222) is provided on the outer wall of the movable rod (211), and a guide surface two (223) is provided on the outer wall of the movable rod (211). The slope of the guide surface one (222) is smaller than the slope of the guide surface two (223).

9. The heat-dissipating charging pile anti-self-ignition device according to claim 6, characterized in that: The blocking assembly (31) includes a rupture disc (311) fixedly connected to the inner wall of the nozzle (122). The inner wall of the nozzle (122) has two slots (312) and a rotating rod (313) is rotatably connected to the inner wall of the nozzle (122). When this device is installed, the rupture disc (311) restricts the rotating rod (313) so that it does not rotate, and at the same time, the rupture disc (311) blocks the nozzle (122).

10. The heat-dissipating charging pile anti-self-ignition device according to claim 9, characterized in that: The limiting component (32) includes a limiting rod (321) fixedly connected to the outer wall of the rotating rod (313), and a limiting groove (322) is provided on the inner wall of the nozzle (122). A limiting ball (323) is placed on the inner wall of the limiting groove (322). The limiting ball (323) is limited by the limiting groove (322), and at the same time, the limiting ball (323) can move freely within the limiting groove (322).

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