Charging pile fireproof and explosion-proof module integrated with smoke sensor and perfluorohexanone fire extinguishing device

Abstract

The invention discloses a charging pile fireproof and explosion-proof module integrated with a smoke sensor and a perfluorohexanone fire extinguishing device, which comprises an in-cabinet modularized fireproof and explosion-proof device, and the in-cabinet modularized fireproof and explosion-proof device is installed at any local position in a charging pile cabinet body; the modularized fireproof and explosion-proof device in the cabinet comprises a device shell, and a smoke sensor and a perfluorohexanone fire extinguishing device are installed in an inner cavity of the device shell. A mesh array is hollowed out in the wall body of the device shell, and a thermosensitive wire led out of the perfluorohexanone fire extinguishing device extends out of the shell and winds all high-temperature flammable points in the charging pile. The perfluorohexanone fire extinguishing agent has very high filling saturation at the initial release stage of the perfluorohexanone fire extinguishing agent.

Description

Technical Field

[0001] The present invention belongs to the field of charging pile fire prevention. Background Art

[0002] The application of perfluoroketone fire extinguishing devices in the field of charging pile fire extinguishing has been very mature. Since the interior of the charging pile cabinet is not a completely enclosed space, when the perfluoroketone fire extinguishing device continuously releases perfluoroketone fire extinguishing agent into the inner cavity of the shell, and enters the inner cavity of the shell, the perfluoroketone fire extinguishing agent will continuously overflow into the interior of the charging pile cabinet through the mesh array in real time. The initial release stage of the perfluoroketone fire extinguishing device is too smooth. Such a smooth release causes the perfluoroketone fire extinguishing agent to start overflowing to the outside of the charging pile cabinet following the air before the interior of the charging pile cabinet is saturated with the perfluoroketone fire extinguishing agent, resulting in a problem of low filling saturation of the fire extinguishing agent in the charging pile cabinet. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a charging pile fire and explosion prevention module integrating a smoke sensor and a perfluoroketone fire extinguishing device, which can have a very high filling saturation at the initial stage of the release of the perfluoroketone fire extinguishing agent.

[0004] Technical Solution: To achieve the above object, a charging pile fire and explosion prevention module integrating a smoke sensor and a perfluoroketone fire extinguishing device of the present invention includes an in-cabinet modular fire and explosion prevention device, and the in-cabinet modular fire and explosion prevention device is installed at any local position inside the charging pile cabinet; the in-cabinet modular fire and explosion prevention device includes a device housing, a smoke sensor and a perfluoroketone fire extinguishing device are installed in the inner cavity of the device housing; a mesh array is hollowed out on the wall of the device housing, and the thermal sensitive wire led out from the perfluoroketone fire extinguishing device extends outside the housing and winds around various high-temperature flammable points inside the charging pile.

[0005] Further, the smoke sensor has a buzzer function.

[0006] Further, when the smoke concentration reaches 300 ppm, the smoke sensor buzzes and simultaneously sends an alarm to the controller. When the concentration reaches 350 ppm, the smoke sensor gives a signal to the controller, and the controller makes the perfluoroketone fire extinguishing device release the perfluoroketone fire extinguishing agent through an electric start method.

[0007] Further, when any position on the path in the self-length direction of the thermal sensitive wire senses that the temperature exceeds the threshold; the controller makes the perfluoroketone fire extinguishing device release the perfluoroketone fire extinguishing agent through an electric start method.

[0008] Further, the device housing is a pressure-resistant housing, and a partition wall is provided in the inner cavity of the device housing to separate the smoke sensor and the perfluoroketone fire extinguishing device.

[0009] Further, the spaces where the smoke sensor and the perfluorinated hexanone fire extinguishing device are located inside the device housing are the inner cavity of the a housing and the inner cavity of the b housing respectively. A hollow window is provided on the partition wall. One side of the hollow window close to the inner cavity of the a housing is covered with a flip cover. One end of the flip cover is connected to the connection between the partition wall and the side wall of the device housing through a hinge with a vertical axis; a magnetic strip is embedded along the contour at the end of the flip cover away from the hinge. In the initial state, the magnetic strip is magnetically attracted to the magnetic material on the partition wall at the edge of the hollow window, so that the flip cover seals the hollow window under normal conditions;

[0010] One side wall of the device housing with a hinge is bounded by the partition wall and is respectively the first section wall and the second section wall; the mesh array includes the a array holes on the first section wall and the b array holes on the second section wall; the a array holes and the b array holes respectively correspond to and communicate with the inner cavity of the a housing and the inner cavity of the b housing;

[0011] An initial plugging plate is arranged in parallel on the outer side of the second section wall. A number of plugging columns are integrally arranged in an array on the side of the initial plugging plate close to the second section wall. The number of plugging columns are respectively and movably inserted into the b array holes one by one, so as to movably plug each b array hole.

[0012] Further, a pull rod through hole is provided in the center of the second section wall. A pull rod is fixedly connected to the side of the center of the initial plugging plate close to the second section wall. The pull rod passes through the pull rod through hole. The end of the pull rod after passing through the pull rod through hole is fixedly connected with a bursting bead. The outer diameter of the bursting bead is larger than the pull rod through hole and is on the inner side of the second section wall, so that the bursting bead prevents the initial plugging plate from moving away from the second section wall through the pull rod;

[0013] An electronic trigger is fixedly installed on the side wall of the inner cavity of the b housing away from the flip cover. A hair trigger button is arranged on the electronic trigger. There is a permanent magnet ring around the hair trigger button of the electronic trigger. A magnetic pressing iron plate is also included. When the magnetic pressing iron plate is adsorbed on the permanent magnet ring under the action of magnetic force, the middle part of the magnetic pressing iron plate stably presses on the hair trigger button. When the magnetic pressing iron plate is separated, the hair trigger button is released from the pressed state, so that the electronic trigger is triggered. After a predetermined time delay, the bursting bead automatically explodes;

[0014] The magnetic pressing iron plate is traction-connected to the flip cover through a traction rope in a relaxed state.

[0015] Further, on the basis of the initial state, after the flip cover rotates counterclockwise by 90° around the hinge, the flip cover fits against the inner side surface of the first section wall and seals each a array hole, so that the inner cavity of the a housing and the inner cavity of the b housing are communicated through the hollow window, and the communication cavity structure formed by the inner cavity of the a housing and the inner cavity of the b housing enters a relatively sealed state; at the same time, during the process of the flip cover rotating counterclockwise by 90° around the hinge, the flip cover pulls the magnetic pressing iron plate away from the hair trigger button through the traction rope, so that the hair trigger button is released from the pressed state.

[0016] Further, the popping bead includes a brittle outer shell, such as a glass ceramic structure. The popping bead is filled with a small amount of gunpowder inside, and the volume of the gunpowder is about 0.3 ml. When the gunpowder inside the popping bead is ignited, the popping bead explodes and completely shatters, so that the initial sealing plate can smoothly disengage from the second section of the wall.

[0017] Beneficial effects: When all the b-array holes of the present invention are completely unblocked, the perfluoropentanone fire extinguishing agent that has long been filled with pressure in the inner cavity of the a-shell and the inner cavity of the b-shell sprays out from each b-array hole instantaneously with a more fierce flow rate into the charging pile electrical cabinet housing, so that the inside of the charging pile cabinet is saturated with the perfluoropentanone fire extinguishing agent in a short time, thereby completely flooding the inside of the charging pile electrical cabinet housing in a short time, so as to achieve the purpose of efficient fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the fire extinguishing process;

[0019] Figure 2 is a first perspective cross-sectional view of the first embodiment;

[0020] Figure 3 is a second perspective cross-sectional view of the first embodiment;

[0021] Figure 4 is a first perspective cross-sectional view of the second embodiment;

[0022] Figure 5 is a second perspective cross-sectional view of the second embodiment;

[0023] Figure 6 Figure 5 exploded view;

[0024] Figure 7 is Figure 6 an enlarged view of the marked position 60. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] As shown in the Figures 1 to 7 drawings, a charging pile fire prevention and explosion protection module integrating a smoke detector and a perfluoropentanone fire extinguishing device is shown.

[0027] First Embodiment:

[0028] As Figure 2 and 3 shown, it includes an in-cabinet modular fire prevention and explosion protection device 30, and the in-cabinet modular fire prevention and explosion protection device 30 is installed at any local position inside the charging pile cabinet; the in-cabinet modular fire prevention and explosion protection device 30 includes a device housing 1, and the device housing 1 is a housing structure completely wrapped by wall bodies on all sides up and down. Figure 1 andFigure 2 They are all sectional structure diagrams. A smoke sensor 2 and a perfluoromethylcyclohexanone fire extinguishing device 4 are installed in the inner cavity 3 of the device housing 1. A mesh hole array 6 is hollowed out on the wall of the device housing 1. The thermal sensitive wire 5 led out from the perfluoromethylcyclohexanone fire extinguishing device 4 extends outside the housing 1 and winds around various high-temperature flammable points inside the charging pile. The perfluoromethylcyclohexanone fire extinguishing device 4 in this case is an existing module, which can start the fire extinguishing mode under the control of the controller and make the spray head 7 of the perfluoromethylcyclohexanone fire extinguishing device 4 release perfluoromethylcyclohexanone fire extinguishing agent to extinguish the fire.

[0029] As Figure 1 , the smoke sensor 2 has a beeping function. When the smoke concentration reaches 300 ppm, the smoke sensor 2 beeps and at the same time sends an alarm to the controller. When the concentration reaches 350 ppm, the smoke sensor 2 gives a signal to the controller, and the controller makes the perfluoromethylcyclohexanone fire extinguishing device 4 release perfluoromethylcyclohexanone fire extinguishing agent through an electric start method. When any position on the path of the thermal sensitive wire 5 in its own length direction senses that the temperature exceeds the threshold value, the temperature threshold value of this solution is 155 °C; the controller makes the perfluoromethylcyclohexanone fire extinguishing device 4 release perfluoromethylcyclohexanone fire extinguishing agent through an electric start method.

[0030] Since the inside of the charging pile cabinet is not a completely enclosed space, in this embodiment, when the perfluoromethylcyclohexanone fire extinguishing device 4 continuously releases perfluoromethylcyclohexanone fire extinguishing agent into the inner cavity 3 of the housing, the perfluoromethylcyclohexanone fire extinguishing agent entering the inner cavity 3 of the housing will continuously overflow into the inside of the charging pile cabinet through the mesh hole array 6 in real time. The initial release stage of the perfluoromethylcyclohexanone fire extinguishing device 4 is too smooth. The too smooth release causes the perfluoromethylcyclohexanone fire extinguishing agent to start overflowing outside the charging pile cabinet following the air before the inside of the charging pile cabinet is saturated with the perfluoromethylcyclohexanone fire extinguishing agent, resulting in the problem of low filling saturation of the fire extinguishing agent in the charging pile cabinet. Therefore, the following improvement scheme is made on the basis of the structure of the first embodiment.

[0031] The improvement scheme is as follows:

[0032] Second embodiment:

[0033] As Figures 4 to 7As shown, the device housing 1 is a compression-resistant housing. An isolation wall 8 is provided in the inner cavity 3 of the housing of the device housing 1. The isolation wall 8 separates the smoke sensor 2 and the perfluoroketone fire extinguishing device 4. The spaces where the smoke sensor 2 and the perfluoroketone fire extinguishing device 4 are located in the device housing 1 are the a inner cavity 3a and the b inner cavity 3b of the housing respectively. A hollow window 14 is provided on the isolation wall 8. A flip cover 10 is covered on the side of the hollow window 14 close to the a inner cavity 3a. One end of the flip cover 10 is connected to the connection between the isolation wall 8 and the side wall of the device housing 1 through a hinge 12 with a vertical axis; a magnetic strip 11 is embedded along the contour at the end of the flip cover 10 away from the hinge 12. In the initial state, the magnetic strip 11 is magnetically attracted to the magnetic material on the isolation wall 8 at the edge of the hollow window 14, so that the flip cover 10 seals the hollow window 14 under normal conditions.

[0034] One side wall of the device housing 1 with the hinge 12 is bounded by the isolation wall 8 and is respectively the first section wall 1a and the second section wall 1b; the mesh array 6 includes the a array holes 6a on the first section wall 1a and the b array holes 6b on the second section wall 1b; the a array holes 6a and the b array holes 6b respectively correspond to and communicate with the a inner cavity 3a and the b inner cavity 3b; an initial blocking plate 16 is arranged in parallel on the outer side of the second section wall 1b. A number of hole-blocking columns 13 are integrally arrayed on the side of the initial blocking plate 16 close to the second section wall 1b. The number of hole-blocking columns 13 are respectively and movably inserted into the b array holes 6b to movably block each b array hole 6b.

[0035] A pull rod through hole 31 is provided in the center of the second-stage wall 1b. One side of the center of the initial sealing plate 16 close to the second-stage wall 1b is fixedly connected with a pull rod 19. The pull rod 19 passes through the pull rod through hole 31. The end of the pull rod 19 after passing through the pull rod through hole 31 is fixedly connected with a bursting bead 20 filled with a small amount of gunpowder inside. The outer diameter of the bursting bead 20 is larger than that of the pull rod through hole 31 and is on the inner side of the second-stage wall 1b. Thus, the bursting bead 20 prevents the initial sealing plate 16 from moving away from the second-stage wall 1b through the pull rod 19. The bursting bead 20 includes a brittle outer shell, such as a glass ceramic structure. The inside of the bursting bead 20 is filled with a small amount of gunpowder, and the volume of the gunpowder is about 0.3 ml. When the gunpowder inside the bursting bead 20 is ignited, the bursting bead 20 bursts with low intensity under the drive of the small amount of gunpowder inside. Its bursting power is equivalent to or lower than that of ordinary small consumer-grade firecrackers and will not damage the internal equipment. After the bursting bead 20 completely bursts, the initial sealing plate 16 can smoothly separate from the second-stage wall 1b; on the side wall of the inner cavity 3b of the b shell away from the flip cover 10, an electronic trigger 9 is fixedly installed. The type of the electronic trigger 9 can be various types. In this case, the electronic trigger 9 is a conventional loose-firing igniter. The ignition part of the electronic trigger 9 is connected to the gunpowder inside the bursting bead 20 through a delay fuse 17; the electronic trigger 9 is a conventional loose-firing igniter. A loose-firing button 22 is provided on the electronic trigger 9. There is a permanent magnet ring 21 around the loose-firing button 22 of the electronic trigger 9. It also includes a magnetic pressing iron plate 26. When the magnetic pressing iron plate 26 is adsorbed on the permanent magnet ring 21 under the action of magnetic force, the middle part of the magnetic pressing iron plate 26 stably presses on the loose-firing button 22. When the magnetic pressing iron plate 26 detaches, the loose-firing button 22 is released from the pressed state, enabling the electronic trigger 9 to ignite the delay fuse 17; the magnetic pressing iron plate 26 is traction-connected to the flip cover 10 through a relaxed traction rope 18. In this case, the delay fuse 17 is a low-temperature fuse (safety pyrotechnic fuse), adopting a chemical formula with low-temperature combustion (such as a guanidine nitrate / copper nitrate mixture), with a combustion temperature lower than that of traditional black powder (about 300 °C, and the traditional fuse can reach 1000 °C), and no spark sputtering.

[0036] On the basis of the initial state, after the flip cover 10 rotates counterclockwise by 90° around the hinge 12, the flip cover 10 fits against the inner side surface of the first-stage wall 1a and seals each a-array hole 6a, so that the inner cavity 3a of the a shell and the inner cavity 3b of the b shell are connected through the hollow window 14, and the communication cavity structure formed by the inner cavity 3a of the a shell and the inner cavity 3b of the b shell enters a relatively sealed state; at the same time, during the process of the flip cover 10 rotating counterclockwise by 90° around the hinge 12, the flip cover 10 pulls the magnetic pressing iron plate 26 through the traction rope 18 to detach from the loose-firing button 22, releasing the loose-firing button 22 from the pressed state.

[0037] The working principle of enhancing the fire extinguishing intensity in the second embodiment:

[0038] In the initial state, the inner cavity 3b of the B shell is in a closed state, while the inner cavity 3a of the A shell is connected to the inner cavity of the electrical cabinet of the charging pile through the A array holes 6a. When smoke is generated in the inner cavity of the electrical cabinet of the charging pile, the smoke will diffuse into the inner cavity 3a of the A shell through the A array holes 6a, and thus be detected by the smoke sensor 2. When the smoke concentration reaches 300 ppm, the smoke sensor 2 beeps and at the same time sends an alarm to the controller. When the concentration reaches 350 ppm, the smoke sensor 2 gives a signal to the controller, and the controller makes the perfluoroketone fire extinguishing device 4 release the perfluoroketone fire extinguishing agent by means of electric start; at the same time, if any position on the path in the self-length direction of the thermosensitive wire 5 senses that the temperature exceeds the threshold of 155 °C, the controller makes the perfluoroketone fire extinguishing device 4 spray the perfluoroketone fire extinguishing agent into the inner cavity 3b of the B shell in a closed state through the spray head 7. The initially sprayed perfluoroketone fire extinguishing agent does not immediately overflow into the housing of the charging pile electrical cabinet, but accumulates in the inner cavity 3b of the B shell, thereby rapidly increasing the pressure in the inner cavity 3b of the B shell. After the pressure in the inner cavity 3b of the B shell rapidly increases, under the action of the pressure in the inner cavity 3b of the B shell, the flip cover 10 overcomes the magnetic suction force and rotates counterclockwise by 90° around the hinge 12. After the flip cover 10 rotates counterclockwise by 90° around the hinge 12, the flip cover 10 fits against the inner side of the first section of the wall 1a and seals each A array hole 6a, so that the inner cavity 3a of the A shell and the inner cavity 3b of the B shell are connected through the hollow window 14, and the communication cavity structure formed by the inner cavity 3a of the A shell and the inner cavity 3b of the B shell enters a relatively sealed state; at the same time, during the process of the flip cover 10 rotating counterclockwise by 90° around the hinge 12, the flip cover 10 pulls the magnetic pressing iron plate 26 away from the hair trigger button 22 through the traction rope 18, so that the hair trigger button 22 is released from the pressed state, and the electronic trigger 9 ignites the delay fuse 17. Since there is a time difference T between the ignition of the delay fuse 17 and the detonation of the bursting bead 20, and T is about 5 s;Before the bursting beads 20 burst, the perfluoroketone fire extinguishing agent ejected from the spray head 7 of the perfluoroketone fire extinguishing device 4 continues to accumulate in the mutually connected inner cavities 3a of the a shell and 3b of the b shell, so that the internal pressure in the inner cavities 3a of the a shell and 3b of the b shell increases rapidly. At the same time, during the process of the rapid increase of the internal pressure in the inner cavities 3a of the a shell and 3b of the b shell, the bursting beads 20 prevent the initial sealing plate 16 from moving away from the second section of the wall 1b through the pull rod 19, so as to maintain the relatively sealed state in the inner cavities 3a of the a shell and 3b of the b shell, and make the internal pressure in the inner cavities 3a of the a shell and 3b of the b shell continue to rise. When the time difference T ends, the end of the delay fuse 17 detonates the bursting beads 20. The bursting beads 20 burst with low intensity under the drive of the internal trace gunpowder, and its bursting power is equivalent to or lower than that of ordinary small consumer-grade firecrackers, and it will not damage the internal equipment. After the bursting beads 20 are completely broken, the initial sealing plate 16 loses the restraint of the bursting beads 20. Several hole-blocking columns 13 quickly separate from the b-array holes 6b under the high pressure in the inner cavity 3b of the b shell, and then the initial sealing plate 16 separates from the second section of the wall 1b, making each b-array hole 6b completely unblocked; at this time, the perfluoroketone fire extinguishing agent that has long been filled with pressure in the inner cavities 3a of the a shell and 3b of the b shell sprays out from each b-array hole 6b into the charging pile electrical cabinet housing at a more fierce flow rate, so that the inside of the charging pile cabinet is saturated with the perfluoroketone fire extinguishing agent in a short time, so as to completely flood the inside of the charging pile electrical cabinet housing in a short time, so as to achieve the purpose of efficient fire extinguishing.

[0039] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A charging pile fire and explosion prevention module integrating a smoke detector and a perfluoromethylhexanone fire extinguishing device, characterized in that: It includes a modular fire and explosion protection device (30) inside the cabinet, and the modular fire and explosion protection device (30) inside the cabinet is installed at any local position inside the charging pile cabinet body; The modular fire and explosion protection device (30) inside the cabinet includes a device housing (1). A smoke sensor (2) and a perfluoroketone fire extinguishing device (4) are installed in the inner cavity (3) of the housing of the device housing (1). A mesh hole array (6) is hollowed out on the wall of the device housing (1). The thermal sensitive wire (5) led out by the perfluoroketone fire extinguishing device (4) extends outside the housing (1) and winds around various high-temperature flammable points inside the charging pile.

2. The charging pile fire and explosion prevention module integrating a smoke detector and a perfluoromethylcyclohexanone fire extinguishing device according to claim 1, characterized in that: The smoke sensor (2) has a buzzer function.

3. The charging pile fire prevention and explosion protection module integrating a smoke sensor and a perfluoromethylcyclohexanone fire extinguishing device according to claim 2, characterized in that: smoke When the concentration reaches 300 ppm, the smoke sensor (2) buzzes and at the same time sends an alarm to the controller. When the concentration reaches 350 ppm, the smoke sensor (2) gives a signal to the controller, and the controller makes the perfluoroketone fire extinguishing device (4) release perfluoroketone fire extinguishing agent through an electric start method.

4. The charging pile fire and explosion prevention module integrating a smoke detector and a perfluoromethylcyclohexanone fire extinguishing device according to claim 3, characterized in that: When any position on the path in the self-length direction of the thermal sensitive wire (5) senses that the temperature exceeds the threshold value; the controller makes the perfluoroketone fire extinguishing device (4) release perfluoroketone fire extinguishing agent through an electric start method.

5. The charging pile fire and explosion prevention module integrating a smoke detector and a perfluoromethylcyclohexanone fire extinguishing device according to claim 4, characterized in that: The device housing (1) is a pressure-resistant housing. A partition wall (8) is arranged in the inner cavity (3) of the housing of the device housing (1). The partition wall (8) separates the smoke sensor (2) and the perfluoroketone fire extinguishing device (4).

6. The charging pile fire prevention and explosion protection module integrating a smoke detector and a perfluoromethylcyclohexanone fire extinguishing device according to claim 5, characterized in that: The spaces where the smoke sensor (2) and the perfluoroketone fire extinguishing device (4) are located inside the device housing (1) are respectively an a inner cavity (3a) and a b inner cavity (3b) of the housing. A hollow window (14) is arranged on the partition wall (8). One side of the hollow window (14) close to the a inner cavity (3a) is covered with a flip cover (10). One end of the flip cover (10) is connected to the connection part of the partition wall (8) and the side wall of the device housing (1) through a hinge (12) with a vertical axis. A magnetic strip (11) is embedded along the contour at the end of the flip cover (10) away from the hinge (12). In the initial state, the magnetic strip (11) is magnetically attracted to the magnetic material on the partition wall (8) at the edge of the hollow window (14), so that the flip cover (10) seals the hollow window (14) under normal conditions; One side wall of the device housing (1) with the hinge (12) is bounded by the partition wall (8) and is respectively a first section wall (1a) and a second section wall (1b). The mesh hole array (6) includes an a array hole (6a) on the first section wall (1a) and a b array hole (6b) on the second section wall (1b). The a array hole (6a) and the b array hole (6b) respectively communicate with the a inner cavity (3a) and the b inner cavity (3b); An initial plugging plate (16) is arranged in parallel on the outer side of the second section wall (1b). A number of plugging columns (13) are integrally arranged in an array on the side of the initial plugging plate (16) close to the second section wall (1b). The number of plugging columns (13) are respectively and movably inserted into the b array holes (6b) to movably plug each b array hole (6b).

7. The charging pile fire prevention and explosion protection module integrating a smoke detector and a perfluoromethylcyclohexanone fire extinguishing device according to claim 6, characterized in that: A pull rod through hole (31) is provided at the center of the second section of wall (1b). One side of the center of the initial sealing plate (16) close to the second section of wall (1b) is fixedly connected with a pull rod (19). The pull rod (19) passes through the pull rod through hole (31). The end of the pull rod (19) after passing through the pull rod through hole (31) is fixedly connected with a bursting bead (20). The outer diameter of the bursting bead (20) is larger than the pull rod through hole (31), and it is inside the second section of wall (1b), so that the bursting bead (20) prevents the initial sealing plate (16) from moving away from the second section of wall (1b) through the pull rod (19). An electronic trigger (9) is fixedly installed on a side wall of the inner cavity (3b) of the b shell away from the flip cover (10). A hair trigger button (22) is provided on the electronic trigger (9). There is a permanent magnet ring (21) around the hair trigger button (22) of the electronic trigger (9). A magnetic pressing iron disc (26) is also included. When the magnetic pressing iron disc (26) is adsorbed on the permanent magnet ring (21) under the action of magnetic force, the middle part of the magnetic pressing iron disc (26) stably presses on the hair trigger button (22). When the magnetic pressing iron disc (26) is separated, the hair trigger button (22) is released from the pressed state, so that the electronic trigger (9) is triggered. After a predetermined time delay, the bursting bead (20) automatically explodes. The magnetic pressing iron disc (26) is traction-connected to the flip cover (10) through a traction rope (18) in a relaxed state.

8. The charging pile fire and explosion prevention module integrating a smoke detector and a perfluoromethylcyclohexanone fire extinguishing device according to claim 7, characterized in that: On the basis of the initial state, after the flip cover (10) rotates counterclockwise by 90° around the hinge (12), the flip cover (10) fits against the inner side surface of the first section of wall (1a) and seals each a-array hole (6a), so that the inner cavity (3a) of the a shell and the inner cavity (3b) of the b shell are communicated through the hollow window (14), and the communication cavity structure formed by the inner cavity (3a) of the a shell and the inner cavity (3b) of the b shell enters a relatively sealed state. At the same time, during the process of the flip cover (10) rotating counterclockwise by 90° around the hinge (12), the flip cover (10) pulls the magnetic pressing iron disc (26) away from the hair trigger button (22) through the traction rope (18), so that the hair trigger button (22) is released from the pressed state.

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