Electric vehicle charging station with spontaneous combustion isolation function

Abstract

The invention relates to the technical field of fire control, and discloses an electric vehicle charging station with a spontaneous combustion isolation function, the electric vehicle charging station comprises a vehicle supporting plate, vertical rails and an isolation pit, the vertical rails are arranged on the inner wall of the periphery in the isolation pit, and the vehicle supporting plate is slidably arranged at the top of the isolation pit through being matched with the vertical rails; a plurality of supporting beams extending outwards are arranged at the bottom of the vehicle supporting plate, supporting wheels are arranged at the tail ends of the supporting beams, a bearing assembly box is arranged on the outer side of the vertical rail, and the supporting wheels extend into the bearing assembly box. Compared with the prior art, the device has the advantages that the fuel gas generation assembly can still stably deflate in a high-temperature environment, an electric power system device is not needed, double trigger guarantee is achieved, if a mechanical structure breaks down, the state can be forcibly switched through an electromagnet push rod, reliability is improved, locking and unlocking of the vehicle supporting plate bearing assembly are controlled by fuel gas, and the safety of the vehicle is improved. Isolation can be completed within seconds, and the response speed is high.

Description

Technical Field

[0001] The present invention relates to the technical field of fire control, and specifically refers to an electric vehicle charging station with a self-ignition isolation function. Background Art

[0002] The main reasons for the self-ignition of electric vehicles include battery thermal runaway, charging system failures, wire aging or short circuits, collision damage, and environmental factors, etc. Battery thermal runaway is mostly caused by overcharging, short circuits, or poor heat dissipation, and such problems are more likely to occur in inferior or aging batteries; using non-compliant equipment during charging, overcharging, or a high-temperature and humid charging environment can cause abnormal circuits and increase the risk of self-ignition; in addition, vehicle collisions may damage the battery structure, and wire aging or improper modification may cause short circuits.

[0003] When a lithium battery self-ignites, internal chemical reactions will release a large amount of heat and combustible gases, forming a jet-like flame and high-temperature radiation. An explosion may occur during battery thermal runaway, and the flying burning fragments will directly ignite adjacent vehicles, exacerbating the spread of the fire. Electric vehicles in an electric vehicle charging station are relatively concentrated. If a self-ignition occurs, the remaining normal vehicles are extremely likely to be affected.

[0004] For example, as described in CN115946554A, a charging station with fire extinguishing and safety protection functions, when the temperature gets out of control during the charging of an electric vehicle, isolating it in time can effectively control the scope of the fire and prevent the disaster from expanding. It mentions using an electric lifting device to quickly transfer the self-igniting electric vehicle to a pre-set pit, which can significantly prevent the fire from spreading outwards. However, the temperature generated by the self-ignition of the electric vehicle is relatively high. Currently, the motors used in common electric lifting devices are difficult to work properly under the influence of high-temperature radiation, and it cannot be guaranteed that the electric vehicle can be isolated in time when an emergency occurs. Moreover, the speed of a conventional motor-driven lifting device is relatively slow and cannot respond to disasters in time. If a high-speed motor is used, after the self-igniting electric vehicle descends, the high temperature generated by the combustion will damage the motor when it comes into contact with the motor, and the cost of high-speed motors is generally high, which is a waste for realizing the isolation of self-igniting electric vehicles. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the physical isolation of self-igniting electric vehicles relies on motor drive, and the motor is extremely likely to be damaged during a fire. The present invention provides an electric vehicle charging station with a self-ignition isolation function.

[0006] To solve the above technical problems, the technical solution provided by the present invention is as follows: An electric vehicle charging station with a self-ignition isolation function, which includes a vehicle support plate, vertical rails, and an isolation pit. A plurality of vertical rails are provided on the inner walls around the isolation pit. The vehicle support plate is slidably arranged on the top of the isolation pit by cooperating with the vertical rails. A plurality of support beams extending outward are provided at the bottom of the vehicle support plate, and support wheels are provided at the ends of the support beams. A support component box is provided outside the vertical rails, and the support wheels extend into the interior of the support component box. The support component box is provided with a linkage component capable of supporting or releasing the support wheels.

[0007] A gas generation component box is provided at the top of the vertical rail. An inspection well, a combustion chamber, and a cavity are sequentially arranged from top to bottom on the outside of the gas generation component box. A detachable pressure-resistant seal cover is arranged between the inspection well and the combustion chamber. A floating piston capable of moving vertically is arranged in the combustion chamber. Liquid fuel is filled below the floating piston, and oxidant powder is filled above. The gas generation component box is provided with an insurance component for controlling the rotation of the diversion disk, an ignition component for igniting the interior of the combustion chamber, and a gas guiding component for driving the linkage component in the support component box with the combustion gas in the combustion chamber.

[0008] Further, a rotatable support block is provided at the top inside the support component box. A support arm is provided on one side of the support block, and a vertical abutting block perpendicular to the support arm is provided on the other side. An inclined abutting block is provided between the support arm and the vertical abutting block. A locking slider vertically pushed upward by a spring is provided near the outside inside the support component box. A locking abutting block for abutting against the vertical abutting block or the inclined abutting block is arranged on one side of the locking slider, and a gas guiding piston is arranged at the top.

[0009] Further, a gas guiding channel is provided inside the gas generation component box. The inlet of the gas guiding channel is arranged on the side wall of the inspection well, and the outlet extends to the top of the support component box. The gas guiding piston extends into the outlet of the gas guiding channel. An air guiding port is provided at the bottom of the pressure-resistant seal cover, and a gas guiding block is provided at the top to connect the inlet of the gas guiding channel with the air guiding port.

[0010] Further, heat conduction component grooves are provided on both sides of the gas generation component box near the position of the vehicle support plate. Heat conduction blocks extending into the heat conduction component grooves are provided on the side walls of the vehicle support plate. A heat conduction slider tightly abutted against the heat conduction block is slidably arranged in the heat conduction component groove. A low melting point alloy block is provided at the tail of the heat conduction slider. A sliding pin block pushed by a spring is slidably arranged in the heat conduction component groove. The sliding pin block tightly abuts against the low melting point alloy block. A retaining pin is provided at the top of the sliding pin block, and the tail of the retaining pin is provided as an opening. An equipment groove is provided on the side of the heat conduction component groove. A locking pin sliding between the heat conduction component groove and the equipment groove is provided in the equipment groove. One end of the locking pin is flat and the other end is inclined, and the flat end abuts against the side wall of the retaining pin.

[0011] Further, an ignition slider is slidably arranged inside one of the multiple device slots. The ignition slider is pushed and extended towards the inspection well by a spring. The side surface of the ignition slider is set as an inclined surface that abuts against the inclined surface of the locking pin. A piezoelectric ceramic igniter is arranged at the end of the ignition slider. An ignition electrode is arranged at the bottom of the pressure-resistant sealing cover, and the ignition electrode is electrically connected to the piezoelectric ceramic igniter.

[0012] Further, a push rod is slidably arranged inside another one of the multiple device slots. The push rod is pushed and extended towards the inspection well by a spring. The root of the push rod is set as an inclined surface that abuts against the inclined surface of the locking pin. An insurance chute is communicated and arranged below the device slot near the inspection well. An electromagnet push rod is slidably arranged inside the insurance chute. The end of the push rod is fixed to the housing of the electromagnet push rod. A driving rod is vertically slidably arranged at the center of the pressure-resistant sealing cover. The bottom of the driving rod is fixedly connected to the diversion disk. A swing arm for controlling the rotation of the driving rod is arranged at the top of the pressure-resistant sealing cover. An insurance connecting rod is arranged at the free end of the electromagnet push rod, and the end of the insurance connecting rod extends into the inspection well and pulls the swing arm to rotate.

[0013] Further, a counterweight is hoisted at the bottom of the floating piston and extends into the cavity. A diversion disk that can rotate slightly is arranged inside the floating piston. A plurality of first diversion holes are arranged above and below the floating piston, and a plurality of second diversion holes are arranged on the diversion disk.

[0014] Further, a plurality of guide wheels are arranged at the end of the support beam, and a guide groove for cooperating with the guide wheels to roll in the vertical direction is arranged inside the vertical track.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The design of the gas generation assembly can still stably deflagrate in a high-temperature environment, which is superior to the device relying on the power system.

[0017] It has a dual-trigger guarantee. After the low-melting-point alloy melts, the mechanical lock is released, and the diversion disk is rotated through the linkage of the push rod and the inclined surface to switch to the waiting-to-be-triggered state. If the mechanical structure fails, the state can be forcibly switched through the electromagnet push rod, improving the reliability.

[0018] The unlocking of the vehicle pallet supporting assembly is controlled by gas and can be isolated within a few seconds, with a fast response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the external structural schematic diagram of the present invention.

[0020] Figure 2 is the position schematic diagram of the vertical track of the present invention.

[0021] Figure 3 is the structural schematic diagram of the isolation pit of the present invention.

[0022] Figure 4 is the attach Figure 3Schematic diagram at position a in

[0023] Figure 5 is the structural schematic diagram of the vertical track of the present invention.

[0024] Figure 6 is attached Figure 5 Schematic diagram at position b in

[0025] Figure 7 is the structural schematic diagram of the support component box of the present invention.

[0026] Figure 8 is the structural schematic diagram of the combustion chamber of the present invention.

[0027] Figure 9 is the structural schematic diagram of the floating piston of the present invention.

[0028] Figure 10 is attached Figure 9 Schematic diagram at position c in

[0029] Figure 11 is the structural schematic diagram of the heat conduction component groove of the present invention.

[0030] Figure 12 is attached Figure 11 Structural schematic diagram at position d in

[0031] Figure 13 is attached Figure 11 Structural schematic diagram at position e in

[0032] Figure 14 is the enlarged structural schematic diagram of the heat conduction component groove after excitation of the present invention.

[0033] Figure 15 is the structural schematic diagram of the push rod of the present invention.

[0034] Figure 16 is the structural schematic diagram of the electromagnetic push rod after excitation of the present invention.

[0035] Figure 17 is the structural schematic diagram of the push rod after excitation of the present invention.

[0036] Figure 18 is the schematic diagram of the gas movement of the present invention.

[0037] Figure 19 is the schematic diagram of the movement of the support component of the present invention.

[0038] Figure 20 is the schematic diagram of the support component after complete release of the present invention.

[0039] Figure 21 is the schematic diagram of the vehicle after isolation of the present invention.

[0040] As shown in the figure: 1. Vehicle pallet, 2. Vertical track, 3. Isolation pit, 4. Support beam, 5. Guide wheel, 6. Support wheel, 7. Guide groove, 8. Support component box, 9. Heat conduction block, 10. Support block, 11. Support arm, 12. Tilted abutting block, 13. Vertical abutting block, 14. Locking slider, 15. Locking abutting block, 16. Air guiding piston, 17. Combustible gas generating component box, 18. Inspection well, 19. Combustion chamber, 20. Cavity, 21. Air guiding channel, 22. Pressure-resistant sealing cover, 23. Floating piston, 24. Flow guiding disc, 25. Counterweight block, 26. First flow guiding hole, 27. Second flow guiding hole, 28. Driving rod, 29. Ignition electrode, 30. Air intake port, 31. Heat conduction component groove, 32. Sliding pin block, 33. Low melting point alloy block, 34. Heat conduction slider, 35. Pin, 36. Equipment groove, 37. Locking pin, 38. Ignition slider, 39. Push rod, 40. Piezoelectric ceramic igniter, 41. Insurance chute, 42. Electromagnetic iron push rod, 43. Insurance connecting rod, 44. Swing arm, 45. Air guiding block. Detailed implementation mode

[0041] The present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Combined with the attached Figure 1 and the attached Figure 2 and the attached Figure 3 and the attached Figure 4 and the attached Figure 5 and the attached Figure 6 and the attached Figure 21 A tram charging station with a self-ignition isolation function includes a vehicle pallet 1, a vertical track 2 and an isolation pit 3. A plurality of vertical tracks 2 are provided on the inner walls around the isolation pit 3. The vehicle pallet 1 is slidably arranged on the top of the isolation pit 3 by cooperating with the vertical track 2. A plurality of support beams 4 extending outward are provided at the bottom of the vehicle pallet 1. A plurality of guide wheels 5 and support wheels 6 are provided at the ends of the support beams 4. A guide groove 7 for the guide wheel 5 to roll in the vertical direction is provided in the vertical track 2. A support component box 8 is provided outside the vertical track 2. The support wheel 6 extends into the support component box 8. A linkage component capable of supporting or releasing the support wheel 6 is provided in the support component box 8.

[0043] Combined with the attached Figure 7 and the attached Figure 8, at the top of the vertical track 2, there is a gas generation component box 17. Outside the gas generation component box 17, there are a maintenance well 18, a combustion chamber 19, and a cavity 20 arranged in sequence from top to bottom. Among them, a detachable pressure-resistant seal cover 22 is arranged between the maintenance well 18 and the combustion chamber 19. Inside the combustion chamber 19, there is a floating piston 23 that can move vertically. Below the floating piston 23, liquid fuel is filled, and above it, oxidant powder is filled. The gas generation component box 17 is provided with an insurance component for controlling the rotation of the flow guide disc 24, an ignition component for igniting the inside of the combustion chamber 19, and a gas guide component for driving the linkage component inside the support component box 8 by the combustion gas inside the combustion chamber 19.

[0044] Combined with the attached Figure 9 and the attached Figure 10 , a counterweight 25 is hoisted and installed at the bottom of the floating piston 23 and extends into the cavity 20. Inside the floating piston 23, there is a flow guide disc 24 that can rotate slightly. A plurality of first flow guide holes 26 are arranged above and below the floating piston 23, and the flow guide disc 24 is provided with a plurality of second flow guide holes 27.

[0045] In the above structure, an airtight seal is applied between the combustion chamber 19 and the cavity 20, and between the floating piston 23 and the side wall of the combustion chamber 19.

[0046] When the first flow guide hole 26 is not aligned with the second flow guide hole 27, it is the insurance state of the device. At this time, the upper and lower parts of the floating piston 23 are isolated from each other, and the liquid fuel and the oxidant powder do not come into contact. In the insurance state, both the liquid fuel and the oxidant powder lack the necessary reactants for the redox reaction, and the substances inside the combustion chamber 19 cannot burn.

[0047] When the first flow guide hole 26 is aligned with the second flow guide hole 27, it is the state to be excited of the device. At this time, the upper and lower parts of the floating piston 23 are connected to each other. Due to the counterweight 25 hoisted and installed below the floating piston 23, under the traction of gravity, the floating piston 23 will move downward. Relatively speaking, the liquid fuel will pass through the first flow guide hole 26 and the second flow guide hole 27 and enter the upper part of the combustion chamber 19 to contact the oxidant powder. At this time, the reactant conditions required for the redox reaction are met, and only by igniting to reach the reaction activation energy can an explosion combustion occur inside the combustion chamber 19.

[0048] In summary, by rotating the flow guide disc 24 to align the first flow guide hole 26 with the second flow guide hole 27, the device can be switched from the insurance state to the state to be excited.

[0049] During the specific implementation of the gas generation component box 17, the liquid fuel filled below the floating piston 23 should be a fuel with certain volatility, low viscosity, and good fluidity, such as methanol or gasoline. The oxidant powder filled above the floating piston 23 can be a strong oxidizing inorganic salt powder, such as potassium chlorate.

[0050] When in the insurance state, the floating piston 23 is subject to the gravity of the counterweight 25, continuously applying pressure to the liquid fuel below it. The liquid fuel is in a relatively high-pressure state. When the guide vane disc 24 is suddenly rotated to switch to the state to be excited, the liquid fuel enters the relatively low-pressure area above the combustion chamber 19 through the first guide hole 26 and the second guide hole 27. Since the pressure of the liquid fuel drops sharply during this process, part of the liquid fuel will quickly vaporize. The gaseous fuel is relatively easier to ignite and deflagrate after being mixed with the oxidizer powder, making the ignition of this device relatively simple and capable of providing a sufficient amount of deflagration gas.

[0051] Combined with the attached Figure 11 、the attached Figure 12 、the attached Figure 13 and the attached Figure 14 , heat conduction component grooves 31 are provided on both sides of the gas generating component box 17 close to the vehicle pallet 1. A heat conduction block 9 extends from the side wall of the vehicle pallet 1 into the heat conduction component groove 31. A heat conduction sliding block 34 that abuts against the heat conduction block 9 is slidably arranged in the heat conduction component groove 31. A low melting point alloy block 33 is provided at the tail of the heat conduction sliding block 34. A sliding pin block 32 pushed by a spring is slidably arranged in the heat conduction component groove 31. The sliding pin block 32 abuts against the low melting point alloy block 33. A retaining pin 35 is provided at the top of the sliding pin block 32. The tail of the retaining pin 35 is an opening. An equipment groove 36 is provided on the side of the heat conduction component groove 31. A locking pin 37 that slides between the heat conduction component groove 31 and the equipment groove 36 is provided in the equipment groove 36. One end of the locking pin 37 is a flat surface and the other end is an inclined surface, and the flat surface end abuts against the side wall of the retaining pin 35.

[0052] When the above structure is specifically implemented, heat conduction optimization treatment needs to be carried out between the abutting contact surfaces of the heat conduction block 9 and the heat conduction sliding block 34, such as pasting heat conduction sheets or applying heat conduction paste. The surface of the vehicle pallet 1 is painted black to improve the heat radiation receiving ability. Currently, the upper limit of the battery thermal management temperature of common electric vehicles is about 40°C. Therefore, in this invention, a temperature slightly higher than 40°C is selected as the trigger temperature for switching from the insurance state to the state to be excited. To ensure that the isolation can be triggered in time before the high temperature caused by the spontaneous combustion of the electric vehicle damages the main structure of this device, the trigger temperature of the ignition component in the combustion chamber 19 is selected to be lower than 300°C. Taking the Figure 11 direction as the reference, the components in the lower heat conduction component groove 31 are used to trigger the insurance, and the components in the upper heat conduction component groove 31 are used to trigger the ignition. Then, Wood's alloy can be selected for the lower low melting point alloy block 33, and tin alloy can be selected for the upper one.

[0053] When the charging temperature of the electric vehicle is abnormally high, since the battery is usually installed on the vehicle chassis, the heat radiated outward by the battery is preferentially transferred to the vehicle pallet 1. After the temperature of the vehicle pallet 1 rises, the heat-conducting slider 34 is heated to melt the low-melting-point alloy block 33. After melting, there is a lack of support between the heat-conducting slider 34 and the sliding pin block 32, and the sliding pin block 32 moves towards the heat-conducting slider 34. Originally, the retaining pin 35 was pressed against the locking pin 37 through its top side. After the sliding pin block 32 moves, the opening at the tail of the retaining pin 35 is aligned with the locking pin 37, and cannot be pressed. In this state, the locking pin 37 can move freely into the heat-conducting component slot 31.

[0054] Combined with Figure 11 , Attachment Figure 14 , Attachment Figure 15 , Attachment Figure 16 and attached Figure 17 , with Figure 11 The direction is taken as a reference, a push rod 39 is slidably arranged inside the equipment slot 36 below, and the push rod 39 is extended toward the inspection well 18 by a spring, and the root of the push rod 39 is set as an inclined surface to press against the inclined surface of the locking pin 37, and a safety slide groove 41 is arranged below the equipment slot 36 near the inspection well 18, and an electromagnet push rod 42 is slidably arranged in the safety slide groove 41, and the electromagnet push rod 42 is connected to the external electrical control system, and the end of the push rod 39 is fixed to the housing of the electromagnet push rod 42, and a driving rod 28 is vertically slidably arranged in the center of the pressure-resistant sealing cover 22, and the bottom of the driving rod 28 is fixedly connected to the guide plate 24, and a swing arm 44 for controlling the rotation of the driving rod 28 is arranged on the top of the pressure-resistant sealing cover 22, and a safety connecting rod 43 is arranged at the free end of the electromagnet push rod 42, and the end of the safety connecting rod 43 extends into the inspection well 18 and pulls the swing arm 44 to rotate.

[0055] Since the push rod 39 is extended by the spring, it contacts the locking pin 37 through the inclined surface, pushing the locking pin 37 into the heat conducting component groove 31. When the low melting point alloy block 33 melts, the locking pin 37 is quickly pushed into the heat conducting component groove 31, and the push rod 39 continues to be pushed by the spring, driving the electromagnet push rod 42 and the safety link 43 to move synchronously. The end of the safety link 43 drives the swing arm 44 to rotate, so that the drive rod 28 drives the guide plate 24 to rotate.

[0056] In summary, the heat radiated outward when the battery is over-temperature can trigger the above series of mechanisms to switch the device from the insurance state to the standby state.

[0057] On the contrary, if the mechanical linkage structure fails and the push rod 39 cannot move, the external electrical control system can still control the electromagnetic push rod 42 to drive the safety link 43 to switch the device from the safety state to the ready-to-be-activated state.

[0058] Combined with Figure 11 and attached Figure 14 , with Figure 11Taking the direction of as a reference, an ignition slider 38 is slidably arranged inside the upper device slot 36. The ignition slider 38 is pushed by a spring towards the inspection well 18. The side of the ignition slider 38 is set as an inclined surface and abuts against the inclined surface of the locking pin 37. A piezoelectric ceramic igniter 40 is arranged at the end of the ignition slider 38. The piezoelectric ceramic igniter 40 includes two piezoelectric ceramics. One is installed at the end of the ignition slider 38, and the other is fixed at a position on the inner wall of the device slot 36 opposite to the ignition slider 38. An ignition electrode 29 is arranged at the bottom of the pressure-resistant seal cover 22. The ignition electrode 29 is a pair of needle-shaped electrodes. The two poles of the ignition electrode 29 are respectively connected to the two piezoelectric ceramics of the piezoelectric ceramic igniter 40 by wires. At the same time, the ignition electrode 29 is connected to an external electrical control system.

[0059] Since the ignition slider 38 is pushed by the spring, it contacts the locking pin 37 through the inclined surface and pushes the locking pin 37 into the heat conduction component slot 31. When the low-melting-point alloy block 33 melts, the locking pin 37 is quickly pushed into the heat conduction component slot 31, and the ignition slider 38 continues to be pushed by the spring, causing the piezoelectric ceramic igniter 40 to collide, creating a potential difference between the ignition electrodes 29 and generating an electric spark, which can ignite the mixture of vaporized fuel and oxidant powder in the combustion chamber 19.

[0060] In summary, when the device is in a standby excitation state, the continuously increasing battery temperature radiates more heat outward, which can trigger the above series of mechanisms, ignite the mixture of gaseous fuel and oxidant powder in the combustion chamber 19, and ignite the liquid fuel. An explosion combustion occurs in the combustion chamber 19, generating high-temperature and high-pressure gas.

[0061] A rotatable supporting block 10 is arranged at the inner top of the supporting component box 8. One side of the supporting block 10 is provided with a supporting arm 11, and the other side is provided with a vertical abutting block 13 perpendicular to the supporting arm 11. An inclined abutting block 12 is arranged between the supporting arm 11 and the vertical abutting block 13. A locking slider 14 vertically pushed upwards by a spring is arranged near the outer side inside the supporting component box 8. A locking abutting block 15 that abuts against the vertical abutting block 13 or the inclined abutting block 12 is arranged on one side of the locking slider 14, and a gas guiding piston 16 is arranged on the top.

[0062] When the device supports the vehicle pallet 1 and the charging vehicle in the normal state, the supporting block 10 is in the Figure 7 angle shown in the figure. The locking slider 14 is pushed upwards by the spring, and the locking abutting block 15 abuts tightly against the vertical abutting block 13. At the same time, the supporting arm 11 supports the supporting wheel 6. The self-weight of the vehicle pallet 1 and the gravity of the vehicle it supports cause the supporting wheel 6 to press down on the supporting arm 11, making the supporting block 10 tend to rotate. The locking abutting block 15 abuts tightly against the vertical abutting block 13, preventing the supporting block 10 from rotating. The above structure realizes the support for the vehicle pallet 1.

[0063] Combined with the attached Figure 8 and the attached Figure 18, a gas guiding channel 21 is provided in the gas generating component box 17. The inlet of the gas guiding channel 21 is arranged on the side wall of the inspection well 18, and the outlet extends to the top of the supporting component box 8. The gas guiding piston 16 extends into the outlet of the gas guiding channel 21. An air guiding port 30 is provided at the bottom of the pressure-resistant sealing cover 22, and a gas guiding block 45 is provided at the top to connect the inlet of the gas guiding channel 21 with the air guiding port 30.

[0064] When the temperature is abnormal during vehicle charging, first refer to the appendix Figure 18 , the high-temperature and high-pressure gas generated by the deflagration in the combustion chamber 19 moves upward and enters the air guiding port 30, and contacts the gas guiding piston 16 under the guidance of the gas guiding block 45 and the gas guiding channel 21. The high-temperature and high-pressure gas pushes the gas guiding piston 16 downward.

[0065] Refer to the appendix Figure 19 , since the thrust of the high-temperature and high-pressure gas is much greater than the spring force, the locking slider 14 is pushed downward. After the locking abutting block 15 moves downward, it cannot tightly abut against the vertical abutting block 13. Since the original supporting block 10 has a tendency to rotate, after losing the tight abutment, the supporting block 10 itself starts to rotate under the downward pressure of the supporting wheel 6. After the supporting arm 11 rotates, it cannot completely support the supporting wheel 6, and the vehicle support plate 1 as a whole starts to move downward.

[0066] Refer to the appendix Figure 20 , after the gas leaves the outlet of the gas guiding channel 21, its own pressure quickly returns to the atmospheric pressure. Due to the decrease in gas pressure, the locking slider 14 loses the downward thrust and is immediately pushed upward by the spring again. Since the supporting block 10 has rotated, the surface of the inclined abutting block 12 after rotation is opposite to the top inclined surface of the locking abutting block 15. After the locking abutting block 15 rises, its top inclined surface abuts tightly against the inclined abutting block 12. At this time, the supporting arm 11 is in a vertical state, the supporting wheel 6 completely loses support, and the vehicle support plate 1 quickly falls to the position shown in the appendix Figure 21 as shown.

[0067] The above describes the present invention and its implementation manners. This description is not restrictive, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A tram charging station with a self-ignition isolation function, which includes a vehicle pallet (1), a vertical track (2) and an isolation pit (3). A plurality of vertical tracks (2) are arranged on the inner walls around the isolation pit (3). The vehicle pallet (1) is slidably arranged on the top of the isolation pit (3) by cooperating with the vertical track (2). A plurality of support beams (4) extending outward are arranged at the bottom of the vehicle pallet (1). Support wheels (6) are provided at the ends of the support beams (4). A support component box (8) is arranged outside the vertical track (2). The support wheels (6) extend into the support component box (8). A linkage component capable of supporting or releasing the support wheels (6) is provided in the support component box (8). It is characterized in that: A gas generation component box (17) is arranged at the top of the vertical track (2). An inspection well (18), a combustion chamber (19) and a cavity (20) are sequentially arranged from top to bottom on the outside of the gas generation component box (17). A detachable pressure-resistant sealing cover (22) is arranged between the inspection well (18) and the combustion chamber (19). A floating piston (23) capable of moving vertically is arranged in the combustion chamber (19). Liquid fuel is filled below the floating piston (23), and oxidant powder is filled above it. A diversion plate (24) capable of controlling the vertical communication of the floating piston (23) is arranged inside the floating piston (23). The gas generation component box (17) is provided with an insurance component for controlling the rotation of the diversion plate (24), an ignition component for igniting the inside of the combustion chamber (19), and a gas guiding component for driving the linkage component in the support component box (8) by the combustion gas in the combustion chamber (19).

2. The tram charging station with a spontaneous combustion isolation function according to claim 1, characterized in that: A rotatable support block (10) is arranged at the top inside the support component box (8). A support arm (11) is arranged on one side of the support block (10), and a vertical abutting block (13) perpendicular to the support arm (11) is arranged on the other side. An inclined abutting block (12) is arranged between the support arm (11) and the vertical abutting block (13). A locking slider (14) vertically pushed upward by a spring is arranged near the outside inside the support component box (8). A locking abutting block (15) for abutting against the vertical abutting block (13) or the inclined abutting block (12) is arranged on one side of the locking slider (14), and a gas guiding piston (16) is arranged on the top.

3. The tram charging station with a spontaneous combustion isolation function according to claim 2, characterized in that: A gas guiding channel (21) is arranged inside the gas generation component box (17). The inlet of the gas guiding channel (21) is arranged on the side wall of the inspection well (18), and the outlet extends to the top of the support component box (8). The gas guiding piston (16) extends into the outlet of the gas guiding channel (21). An air guiding port (30) is arranged at the bottom of the pressure-resistant sealing cover (22), and a gas guiding block (45) is arranged at the top to connect the inlet of the gas guiding channel (21) with the air guiding port (30).

4. The tram charging station with self-ignition isolation function according to claim 1, characterized in that: On both sides of the gas generation component box (17) near the vehicle pallet (1), there are heat conduction component grooves (31). On the side wall of the vehicle pallet (1), there is a heat conduction block (9) extending into the heat conduction component groove (31). A heat conduction slider (34) that abuts against the heat conduction block (9) is slidably arranged in the heat conduction component groove (31). At the tail of the heat conduction slider (34), there is a low melting point alloy block (33). A sliding pin block (32) pushed by a spring is slidably arranged in the heat conduction component groove (31). The sliding pin block (32) abuts against the low melting point alloy block (33). At the top of the sliding pin block (32), there is a retaining pin (35). The tail of the retaining pin (35) is open. On the side of the heat conduction component groove (31), there are two equipment grooves (36). In the equipment grooves (36), there are retaining pins (37) that slide between the heat conduction component groove (31) and the equipment grooves (36). One end of the retaining pin (37) is flat and the other end is inclined. The flat end abuts against the side wall of the retaining pin (35).

5. The tram charging station with a spontaneous combustion isolation function according to claim 4, characterized in that: An ignition slider (38) is slidably arranged inside the upper one of the two equipment grooves (36). The ignition slider (38) is pushed by a spring towards the inspection well (18). The side of the ignition slider (38) is inclined and abuts against the inclined surface of the retaining pin (37). At the end of the ignition slider (38), there is a piezoelectric ceramic igniter (40). At the bottom of the pressure-resistant sealing cover (22), there is an ignition electrode (29). The ignition electrode (29) is electrically connected to the piezoelectric ceramic igniter (40).

6. The tram charging station with a spontaneous combustion isolation function according to claim 4, characterized in that: A push rod (39) is slidably arranged inside the other one of the two equipment grooves (36). The push rod (39) is pushed by a spring towards the inspection well (18). The root of the push rod (39) is inclined and abuts against the inclined surface of the retaining pin (37). Below the equipment groove (36) near the inspection well (18), an insurance chute (41) is communicated. An electromagnet push rod (42) is slidably arranged in the insurance chute (41). The end of the push rod (39) is fixed to the housing of the electromagnet push rod (42). A drive rod (28) is vertically slidably arranged in the center of the pressure-resistant sealing cover (22). The bottom of the drive rod (28) is fixedly connected to the flow guiding disc (24). At the top of the pressure-resistant sealing cover (22), there is a swing arm (44) for controlling the rotation of the drive rod (28). At the free end of the electromagnet push rod (42), there is an insurance connecting rod (43). The end of the insurance connecting rod (43) extends into the inspection well (18) and pulls the swing arm (44) to rotate.

7. The tram charging station with self-ignition isolation function according to claim 1, characterized in that: A counterweight block (25) is hoisted at the bottom of the floating piston (23) and extends into the cavity (20). Inside the floating piston (23), there is a rotatable flow guiding disc (24). A plurality of first flow guiding holes (26) are arranged above and below the floating piston (23). The flow guiding disc (24) is provided with a plurality of second flow guiding holes (27). The relative rotation of the flow guiding disc (24) with respect to the floating piston (23) can align and communicate the first flow guiding holes (26) and the second flow guiding holes (27).

8. The tram charging station with a self-ignition isolation function according to claim 1, characterized in that: At the end of the support beam (4), there are a plurality of guide wheels (5). In the vertical track (2), there is a guide groove (7) that cooperates with the guide wheels (5) to roll in the vertical direction.

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