An electric vehicle charging station with spontaneous combustion isolation function

Abstract

The present invention relates to the field of fire control technology. The present invention discloses an electric vehicle charging station with a spontaneous combustion isolation function, which includes a vehicle pallet, a vertical track and an isolation pit. A plurality of vertical tracks are set on the inner walls of the isolation pit. The vehicle pallet is set on the top of the isolation pit by sliding in cooperation with the vertical tracks. A plurality of outwardly extending support beams are set at the bottom of the vehicle pallet. The ends of the support beams are provided with support wheels. A support component box is provided on the outer side of the vertical track, and the support wheels extend into the interior of the support component box. The advantages of the present invention over the prior art are: the design of the gas generating component can still stably deflagrate in a high temperature environment without relying on the power system device, and has dual triggering protection. If the mechanical structure fails, the state can be forced to switch by the electromagnet push rod to improve reliability. The locking and releasing of the vehicle pallet supporting component is controlled by gas, and isolation can be completed within seconds, with a fast response speed.

Description

Technical Field

[0001] The present invention relates to the technical field of fire control, and in particular to an electric vehicle charging station with a spontaneous combustion isolation function. Background Art

[0002] The main causes of electric vehicle spontaneous combustion include battery thermal runaway, charging system failures, wiring aging or short circuits, collision damage, and environmental factors. Battery thermal runaway is often caused by overcharging, short circuits, or poor heat dissipation, and is more prone to such problems with low-quality or aged batteries. Using substandard charging equipment, overcharging, or charging in a hot and humid environment can lead to circuit abnormalities and increase the risk of spontaneous combustion. Furthermore, vehicle collisions can damage the battery structure, while aging or improper wiring modifications can cause short circuits.

[0003] When a lithium battery spontaneously combusts, the internal chemical reaction will release a large amount of heat and combustible gases, forming jet-like flames and high-temperature radiation. When the battery thermally runs away, an explosion may occur. The flying burning fragments will directly ignite nearby vehicles, exacerbating the spread of the fire. Electric vehicles are relatively concentrated in electric vehicle charging stations. If spontaneous combustion occurs, other normal cars are extremely likely to be affected.

[0004] For example, CN115946554A records a charging station with fire extinguishing and safety protection functions. If the temperature gets out of control when the electric vehicle is charging, isolating it in time can effectively control the scope of the fire and prevent the disaster from expanding. It mentions the use of electric lifting equipment to quickly transfer the self-igniting electric vehicle to a pre-set pit, which can significantly prevent the fire from spreading outward. However, the temperature generated by the spontaneous combustion of the electric vehicle is relatively high. The motors used in the currently common electric lifting equipment are difficult to work normally under the influence of high-temperature radiation. It cannot guarantee that the electric vehicle can be isolated in time when an emergency occurs. In addition, the conventional motor-driven lifting device is slow and cannot respond to disasters in a timely manner. If a high-speed motor is used, after the self-igniting electric vehicle descends, the high temperature generated by the combustion will come into contact with the motor and cause damage to the motor. The cost of high-speed motors is generally high, and it is a waste to use them to isolate the self-igniting electric vehicle. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the physical isolation of spontaneous combustion electric vehicles relies on motor drive, and the motor is very easy to be damaged when a fire occurs. A electric vehicle charging station with spontaneous combustion isolation function is provided.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: an electric vehicle charging station with a spontaneous combustion isolation function, which includes a vehicle pallet, a vertical track and an isolation pit. A plurality of vertical tracks are arranged on the inner walls of the isolation pit. The vehicle pallet is arranged on the top of the isolation pit by sliding in cooperation with the vertical track. A plurality of outwardly extending support beams are arranged at the bottom of the vehicle pallet. Support wheels are provided at the ends of the support beams. A supporting component box is provided on the outside of the vertical track. The support wheels extend into the interior of the supporting component box. The supporting component box has a linkage component that can support or release the support wheels.

[0007] A gas generating assembly box is provided on the top of the vertical track. An inspection well, a combustion chamber and a cavity are arranged on the outside of the gas generating assembly box from top to bottom. A detachable pressure-resistant sealing cover is provided between the inspection well and the combustion chamber. A floating piston that can move vertically is provided in the combustion chamber. Liquid fuel is filled below the floating piston and oxidant powder is filled above it. The gas generating assembly box is provided with a safety assembly for controlling the rotation of the guide plate, an ignition assembly for igniting the combustion chamber, and a gas guide assembly that drives the combustion gas in the combustion chamber to drive the linkage assembly in the supporting assembly box.

[0008] Furthermore, a rotatable supporting block is provided at the top of the supporting component box, a supporting arm is provided on one side of the supporting block, and a vertical block perpendicular to the supporting arm is provided on the other side, an inclined block is provided between the support arm and the vertical block, and a locking slider that extends vertically upward by a spring is provided near the outside of the supporting component box, a locking block that is tightly pressed against the vertical block or the inclined block is provided on one side of the locking slider, and an air guide piston is provided on the top.

[0009] Furthermore, an air guide channel is provided in the gas generating assembly box, the entrance of the air guide channel is provided on the side wall of the inspection well, the outlet extends to the top of the supporting assembly box, the air guide piston extends into the outlet of the air guide channel, the bottom of the pressure-resistant sealing cover is provided with an air inlet, and the top is provided with an air guide block to connect the entrance of the air guide channel with the air inlet.

[0010] Furthermore, the gas generating assembly box is provided with heat conducting assembly grooves on both sides near the vehicle pallet, and the side wall of the vehicle pallet is provided with a heat conducting block extending into the heat conducting assembly groove, and a heat conducting slider is slidingly provided in the heat conducting assembly groove and pressed against the heat conducting block, and a low-melting-point alloy block is provided at the tail of the heat conducting slider, and a sliding pin block extended by a spring is slidingly provided in the heat conducting assembly groove, and the sliding pin block is pressed against the low-melting-point alloy block, and a bayonet is provided on the top of the sliding pin block, and the tail of the bayonet is set as an opening, and an equipment groove is provided on the side of the heat conducting assembly groove, and a locking pin is provided in the equipment groove for sliding between the heat conducting assembly groove and the equipment groove, and one end of the locking pin is flat and the other end is inclined, and the flat end is pressed against the side wall of the bayonet.

[0011] Furthermore, an ignition slider is slidingly set inside one of the multiple equipment slots, and the ignition slider is pushed toward the inspection well by a spring. The side of the ignition slider is set as an inclined surface and pressed against the inclined surface of the locking pin. A piezoelectric ceramic igniter is provided at the end of the ignition slider, and an ignition electrode is provided at the bottom of the pressure-resistant sealing cover, and the ignition electrode is electrically connected to the piezoelectric ceramic igniter.

[0012] Furthermore, a push rod is slidingly set inside another of the multiple equipment slots, and the push rod is pushed toward the inspection well by a spring, and the root of the push rod is set as an inclined surface and pressed against the inclined surface of the lock pin, and a safety slide groove is set below the equipment slot near the inspection well, and an electromagnet push rod is slidingly set in the safety slide groove, and the end of the push rod is fixed to the electromagnet push rod housing, a driving rod is vertically slidingly set in the center of the pressure-resistant sealing cover, and the bottom of the driving rod is fixedly connected to the guide plate, and a swing arm for controlling the rotation of the driving rod is provided on the top of the pressure-resistant sealing cover, and a safety link is provided at the free end of the electromagnet push rod, and the end of the safety link extends into the inspection well and pulls the swing arm to rotate.

[0013] Furthermore, a counterweight is installed at the bottom of the floating piston and extends into the cavity. A guide plate that can rotate slightly is provided inside the floating piston. Multiple first guide holes are provided above and below the floating piston, and the guide plate is provided with multiple second guide holes.

[0014] Furthermore, a plurality of guide wheels are provided at the end of the support beam, and a guide groove is provided in the vertical track to cooperate with the guide wheels to roll in the vertical direction.

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

[0016] The gas generating assembly is designed to be able to stably deflagrate even in high temperature environments, making it superior to devices that rely on electrical systems.

[0017] It has dual triggering protection. After the low-melting-point alloy melts, the mechanical lock is released. The guide plate is rotated through the push rod and the inclined plane linkage, and switched to the ready-to-be-activated state. If the mechanical structure fails, the electromagnet push rod can be used to force the state to switch, thereby improving reliability.

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

[0019] Figure 1 It is a schematic diagram of the external structure of the present invention.

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

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

[0022] Figure 4 It is attached Figure 3Schematic diagram at point a in the middle.

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

[0024] Figure 6 It is attached Figure 5 Schematic diagram at point b in the middle.

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

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

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

[0028] Figure 10 It is attached Figure 9 Schematic diagram at point c in the middle.

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

[0030] Figure 12 It is attached Figure 11 Schematic diagram of the structure at point d in the middle.

[0031] Figure 13 It is attached Figure 11 Schematic diagram of the structure at point e.

[0032] Figure 14 It is an enlarged schematic diagram of the structure of the heat conducting component groove after excitation of the present invention.

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

[0034] Figure 16 It is a schematic structural diagram of the electromagnet push rod after being excited.

[0035] Figure 17 It is a schematic structural diagram of the push rod after being excited in the present invention.

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

[0037] Figure 19 It is a motion diagram of the supporting assembly of the present invention.

[0038] Figure 20 It is a schematic diagram of the supporting component of the present invention after being fully released.

[0039] Figure 21 It is a 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 transfer block, 10. Support block, 11. Support arm, 12. Tilting block, 13. Vertical block, 14. Locking slider, 15. Locking block, 16. Gas piston, 17. Gas generating component box, 18. Inspection well, 19. Combustion chamber, 20. Cavity, 21. Gas channel, 22. Pressure-resistant sealing cover, 23. Floating piston , 24. Guide plate, 25. Counterweight, 26. First guide hole, 27. Second guide hole, 28. Drive rod, 29. Ignition electrode, 30. Air inlet, 31. Thermal conductive component slot, 32. Sliding pin block, 33. Low melting point alloy block, 34. Thermal conductive slider, 35. Pin, 36. Equipment slot, 37. Lock pin, 38. Ignition slider, 39. Push rod, 40. Piezoelectric ceramic igniter, 41. Safety slide, 42. Electromagnet push rod, 43. Safety link, 44. Swing arm, 45. Air guide block. DETAILED DESCRIPTION

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

[0042] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 21 , a tram charging station with a spontaneous combustion 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 arranged on the top of the isolation pit 3 by sliding in cooperation with the vertical track 2. A plurality of outwardly extending support beams 4 are arranged at the bottom of the vehicle pallet 1. A plurality of guide wheels 5 and support wheels 6 are provided at the end of the support beam 4. A guide groove 7 for vertical rolling of the guide wheel 5 is provided in the vertical track 2. A supporting component box 8 is provided on the outside of the vertical track 2. The support wheel 6 extends into the inside of the supporting component box 8. The supporting component box 8 has a linkage component that can support or release the support wheel 6.

[0043] Combined with attachment Figure 7 and attached Figure 8A gas generating assembly box 17 is provided on the top of the vertical track 2. An inspection well 18, a combustion chamber 19 and a cavity 20 are provided on the outside of the gas generating assembly box 17 from top to bottom. A detachable pressure-resistant sealing cover 22 is provided between the inspection well 18 and the combustion chamber 19. A floating piston 23 that can move vertically is provided in the combustion chamber 19. Liquid fuel is filled below the floating piston 23 and oxidant powder is filled above it. The gas generating assembly box 17 is provided with a safety assembly for controlling the rotation of the guide plate 24, an ignition assembly for igniting the combustion chamber 19, and a gas guide assembly that drives the linkage assembly in the supporting assembly box 8 through the combustion gas in the combustion chamber 19.

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

[0045] In the above structure, airtight sealing 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 guide hole 26 is not aligned with the second guide hole 27, it serves as the safety state of the device. At this time, the floating piston 23 is isolated from each other, and the liquid fuel and the oxidant powder do not come into contact. In the safety state, the liquid fuel and the oxidant powder lack the necessary reactants to undergo redox reaction, and the substances in the combustion chamber 19 cannot burn.

[0047] When the first guide hole 26 and the second guide hole 27 are aligned, the device is in the ready-to-be-activated state. At this time, the floating piston 23 is connected to each other from top to bottom. Since the counterweight block 25 is hoisted below the floating piston 23, the floating piston 23 will move downward under the traction of gravity. In contrast, the liquid fuel will pass through the first guide hole 26 and the second guide hole 27 into the top of the combustion chamber 19 and come into contact with the oxidant powder. At this time, the reactant conditions required for the redox reaction are met, and it only needs to be ignited to reach the reaction activation energy to cause explosion in the combustion chamber 19.

[0048] In summary, by rotating the guide plate 24 to align the first guide hole 26 with the second guide hole 27 , the device can be switched from the safety state to the ready-to-fire state.

[0049] When the gas generating assembly box 17 is implemented, 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, and the oxidant powder filled above the floating piston 23 can be a strong oxidizing inorganic salt powder, such as potassium chlorate.

[0050] Because in the insurance state, the floating piston 23 is affected by the gravity of the counterweight block 25, and continuously applies pressure to the liquid fuel below it, and the liquid fuel is in a relatively high-pressure state. When the guide plate 24 is suddenly rotated and switched to the standby state, the liquid fuel passes through the first guide hole 26 and the second guide hole 27 into the relatively low-pressure area above the combustion chamber 19. Since the pressure of the liquid fuel drops sharply during this process, part of the liquid fuel will be quickly vaporized. After the gas fuel is mixed with the oxidizer powder, it is relatively easier to ignite and more likely to explode, making the ignition of this device relatively simple and able to provide a sufficient amount of explosion gas.

[0051] Combined with attachment Figure 11 , Attachment Figure 12 , Attachment Figure 13 and attached Figure 14 , the gas generating assembly box 17 is provided with a heat conducting assembly groove 31 on both sides near the vehicle pallet 1, and the side wall of the vehicle pallet 1 is provided with a heat conducting block 9 extending into the heat conducting assembly groove 31, and a heat conducting slider 34 is slidingly provided in the heat conducting assembly groove 31 and pressed against the heat conducting block 9, and a low melting point alloy block 33 is provided at the tail end of the heat conducting slider 34, and a sliding pin block 32 extended by a spring is slidingly provided in the heat conducting assembly groove 31, and the sliding pin block 32 is pressed against the low melting point alloy block 33, and a bayonet 35 is provided on the top of the sliding pin block 32, and the tail end of the bayonet 35 is set as an opening, and an equipment groove 36 is provided on the side of the heat conducting assembly groove 31, and a lock pin 37 is provided in the equipment groove 36 to slide between the heat conducting assembly groove 31 and the equipment groove 36, and one end of the lock pin 37 is a plane and the other end is an inclined surface, wherein the flat end is pressed against the side wall of the bayonet 35.

[0052] When the above structure is implemented, the heat conduction block 9 and the contact surface of the heat conduction slider 34 need to be subjected to heat conduction optimization treatment, such as pasting a heat conduction sheet or applying heat conduction paste, and the surface of the vehicle support plate 1 is painted black to improve the heat radiation receiving ability. The upper limit of the thermal management temperature of the battery of the common electric vehicle is about 40°C. Therefore, the present invention selects a temperature higher than 40°C to a certain extent as the trigger temperature for switching the insurance state to the waiting state. In order to ensure that the isolation can be triggered in time before the high temperature caused by the spontaneous combustion of the electric vehicle destroys the main structure of the device, the trigger temperature of the ignition component in the combustion chamber 19 is selected to be lower than 300°C, so as to attach Figure 11 The direction is taken as a reference, wherein the component in the lower heat-conducting component slot 31 is used to trigger the insurance, and the component in the upper heat-conducting component slot 31 is used to trigger the ignition, then the lower low-melting-point alloy block 33 can be made of Wood's alloy, and the upper one can be made of tin alloy.

[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. The sliding pin block 32 moves towards the heat-conducting slider 34. The original latch 35 is pressed against the locking pin 37 through its top side. After the sliding pin block 32 moves, the opening at the tail of the latch 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 attachment Figure 11 , Attachment Figure 14 , Attachment Figure 15 , Attachment Figure 16 and attached Figure 17 , with attached Figure 11 The direction is taken as a reference, a push rod 39 is slidingly set inside the equipment slot 36 below, and the push rod 39 is extended toward the inspection well 18 by a spring. The root of the push rod 39 is set as an inclined surface and is tightly pressed against the inclined surface of the lock pin 37. The equipment slot 36 is connected to the inspection well 18 at the bottom thereof with a safety slide 41. An electromagnet push rod 42 is slidingly set in the safety slide 41. The electromagnet push rod 42 is connected to the external electrical control system. The end of the push rod 39 is fixed to the housing of the electromagnet push rod 42. A driving rod 28 is vertically slidingly set in the center of the pressure-resistant sealing cover 22. The bottom of the driving rod 28 is fixedly connected to the guide plate 24. A swing arm 44 for controlling the rotation of the driving rod 28 is provided at the top of the pressure-resistant sealing cover 22. A safety link 43 is provided at the free end of the electromagnet push rod 42. The end of the safety link 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 lock pin 37 through the inclined surface, pushing the lock pin 37 into the heat conduction component groove 31. When the low melting point alloy block 33 melts, the lock pin 37 is quickly pushed into the heat conduction component groove 31. 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 deflector plate 24 to rotate.

[0056] In summary, the heat radiated outward when the battery is overheated can trigger the above series of mechanisms, switching the device from the safety 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, so that the device switches from the safety state to the ready-to-be-activated state.

[0058] Combined with attachment Figure 11 and attached Figure 14 , with attached Figure 11The direction is taken as a reference, an ignition slider 38 is slidingly set inside the upper equipment slot 36, and the ignition slider 38 is extended toward the inspection well 18 by a spring. The side of the ignition slider 38 is set as an inclined surface and is pressed against the inclined surface of the lock pin 37. A piezoelectric ceramic igniter 40 is provided at the end of the ignition slider 38. The piezoelectric ceramic igniter 40 includes two piezoelectric ceramics, one of which is installed at the end of the ignition slider 38, and the other is fixed on the inner wall of the equipment slot 36 at a position opposite to the ignition slider 38. An ignition electrode 29 is provided at the bottom of the pressure-resistant sealing 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 ceramic wires of the piezoelectric ceramic igniter 40, and the ignition electrode 29 is connected to the external electrical control system.

[0059] Since the ignition slider 38 is extended by the spring, it contacts the lock pin 37 through the inclined surface, pushing the lock pin 37 into the heat conduction component groove 31. When the low-melting-point alloy block 33 melts, the lock pin 37 is quickly pushed into the heat conduction component groove 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 vaporized fuel and oxidizer powder mixture in the combustion chamber 19.

[0060] In summary, when the device is in the standby state, the battery temperature continues to rise and radiates more heat outward, which can trigger the above-mentioned series of mechanisms, ignite the gas fuel and oxidizer powder mixture in the combustion chamber 19, and ignite the liquid fuel, and the explosion in the combustion chamber 19 produces high-temperature and high-pressure combustion gas.

[0061] A rotatable supporting block 10 is provided at the top of the supporting component box 8, a supporting arm 11 is provided on one side of the supporting block 10, and a vertical block 13 perpendicular to the support arm 11 is provided on the other side, and an inclined block 12 is provided between the support arm 11 and the vertical block 13. A locking slider 14 is provided near the outside of the supporting component box 8 and is extended vertically upward by a spring. A locking block 15 is provided on one side of the locking slider 14 and is pressed tightly against the vertical block 13 or the inclined block 12, and an air guide piston 16 is provided on the top.

[0062] When the device supports the vehicle support plate 1 and the charging vehicle in normal state, the supporting block 10 is in the adjacent Figure 7 At the angle shown in the figure, the locking slider 14 is extended upward by the spring, and the locking block 15 is pressed against the vertical block 13. At the same time, the support arm 11 supports the support wheel 6. The weight of the vehicle pallet 1 and the gravity of the vehicle it supports cause the support wheel 6 to press the support arm 11 downward, causing the support block 10 to tend to rotate. The locking block 15 is pressed against the vertical block 13 so that the support block 10 cannot rotate. The above structure realizes the support of the vehicle pallet 1.

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

[0064] If the vehicle temperature is abnormal during charging, first refer to the attached Figure 18 The high-temperature and high-pressure gas generated by the explosion in the combustion chamber 19 moves upward into the air inlet 30, and contacts the air guide piston 16 under the guidance of the air guide block 45 and the air guide channel 21, and the high-temperature and high-pressure gas pushes the air guide piston 16 downward.

[0065] Reference Attachment Figure 19 Because the thrust of the high-temperature and high-pressure gas is much greater than the spring force, the locking slider 14 is pushed downward, and the locking block 15 cannot press against the vertical block 13 after moving downward. Since the supporting block 10 originally has a tendency to rotate, after losing the tightness, the supporting block 10 itself is pressed down by the supporting wheel 6 and begins to rotate. After the support arm 11 rotates, it cannot fully support the supporting wheel 6, and the vehicle pallet 1 begins to move downward as a whole.

[0066] Reference Attachment Figure 20 After the gas leaves the outlet of the gas guide channel 21, its own pressure quickly returns to atmospheric pressure. Due to the decrease in gas pressure, the locking slider 14 loses its downward thrust and is immediately extended upward again by the spring. Since the supporting block 10 rotates, the surface of the tilting block 12 after rotation is opposite to the top inclined surface of the locking block 15. After the locking block 15 rises, its top inclined surface is pressed tightly against the tilting block 12. At this time, the support arm 11 is in a vertical state, the support wheel 6 completely loses support, and the vehicle pallet 1 quickly falls to the nearby Figure 21 Position shown.

[0067] The above description of the present invention and its embodiments is non-limiting, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the invention, without creatively designing a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A tram charging station with a spontaneous combustion isolation function, comprising a vehicle pallet (1), a vertical track (2) and an isolation pit (3), wherein a plurality of vertical tracks (2) are arranged on the inner walls of the isolation pit (3), the vehicle pallet (1) is arranged on the top of the isolation pit (3) by sliding in cooperation with the vertical tracks (2), a plurality of outwardly extending support beams (4) are arranged at the bottom of the vehicle pallet (1), support wheels (6) are arranged at the ends of the support beams (4), a supporting assembly box (8) is provided on the outer side of the vertical track (2), the support wheels (6) extend into the interior of the supporting assembly box (8), and a linkage assembly capable of supporting or releasing the support wheels (6) is provided in the supporting assembly box (8), characterized in that: A gas generating assembly box (17) is provided on the top of the vertical track (2), and an inspection well (18), a combustion chamber (19) and a cavity (20) are sequentially provided on the outside of the gas generating assembly box (17) from top to bottom, wherein a detachable pressure-resistant sealing cover (22) is provided between the inspection well (18) and the combustion chamber (19), and a floating piston (23) that can move in a vertical direction is provided in the combustion chamber (19), the bottom of the floating piston (23) is filled with liquid fuel, and the top is filled with oxidant powder, and a guide plate (24) that can control the upper and lower communication of the floating piston (23) is provided inside the floating piston (23), and the gas generating assembly box (17) is provided with a safety assembly for controlling the rotation of the guide plate (24), an ignition assembly for igniting the combustion chamber (19), and a gas guide assembly that enables the combustion gas in the combustion chamber (19) to drive the linkage assembly in the supporting assembly box (8); The gas generating assembly box (17) is provided with heat conducting assembly grooves (31) on both sides near the vehicle support plate (1), and a heat conducting block (9) is provided on the side wall of the vehicle support plate (1) and extends into the heat conducting assembly groove (31). A heat conducting slider (34) is provided in the heat conducting assembly groove (31) and is pressed against the heat conducting block (9). A low melting point alloy block (33) is provided at the tail of the heat conducting slider (34). A sliding pin block (32) is provided in the heat conducting assembly groove (31) and is extended by a spring. ), the sliding pin block (32) is pressed against the low melting point alloy block (33), a latch (35) is provided on the top of the sliding pin block (32), the tail of the latch (35) is set as an opening, two device slots (36) are provided on the side of the heat conducting component slot (31), and a locking pin (37) is provided in the device slot (36) for sliding between the heat conducting component slot (31) and the device slot (36), one end of the locking pin (37) is a plane and the other end is an inclined surface, wherein the plane end is pressed against the side wall of the latch (35).

2. The electric vehicle charging station with spontaneous combustion isolation function according to claim 1 is characterized in that: A rotatable supporting block (10) is provided at the top of the supporting assembly box (8), a supporting arm (11) is provided on one side of the supporting block (10), and a vertical stop block (13) perpendicular to the supporting arm (11) is provided on the other side, an inclined stop block (12) is provided between the supporting arm (11) and the vertical stop block (13), a locking slider (14) vertically extended upward by a spring is provided near the outside of the supporting assembly box (8), a locking stop block (15) pressed against the vertical stop block (13) or the inclined stop block (12) is provided on one side of the locking slider (14), and an air guide piston (16) is provided on the top.

3. The electric vehicle charging station with spontaneous combustion isolation function according to claim 2, characterized in that: The gas generating assembly box (17) is provided with an air guide channel (21), the inlet of the air guide channel (21) is provided on the side wall of the inspection well (18), and the outlet extends to the top of the supporting assembly box (8). The air guide piston (16) extends into the outlet of the air guide channel (21), the bottom of the pressure-resistant sealing cover (22) is provided with an air inlet (30), and the top is provided with an air guide block (45) to connect the inlet of the air guide channel (21) with the air inlet (30).

4. The electric vehicle charging station with spontaneous combustion isolation function according to claim 1, characterized in that: An ignition slider (38) is provided in the upper part of the two equipment slots (36) for internal sliding. The ignition slider (38) is extended toward the inspection well (18) by a spring. The side surface of the ignition slider (38) is provided with an inclined surface that abuts against the inclined surface of the lock pin (37). A piezoelectric ceramic igniter (40) is provided at the end of the ignition slider (38). An ignition electrode (29) is provided at the bottom of the pressure-resistant sealing cover (22). The ignition electrode (29) is electrically connected to the piezoelectric ceramic igniter (40).

5. The electric vehicle charging station with spontaneous combustion isolation function according to claim 1 is characterized in that: A push rod (39) is provided inside the other of the two equipment slots (36) for sliding. The push rod (39) is extended toward the inspection well (18) by a spring. The root of the push rod (39) is provided with an inclined surface and is pressed against the inclined surface of the lock pin (37). A safety slide groove (41) is provided below the equipment slot (36) near the inspection well (18). An electromagnet push rod (42) is provided for sliding in the safety slide groove (41). The end of the push rod (39) is fixed to the housing of the electromagnet push rod (42). A driving rod (28) is provided for vertical sliding in the center of the pressure-resistant sealing cover (22). The bottom of the driving rod (28) is fixedly connected to the guide plate (24). A swing arm (44) for controlling the rotation of the driving rod (28) is provided at the top of the pressure-resistant sealing cover (22). A safety connecting rod (43) is provided at the free end of the electromagnet push rod (42). The end of the safety connecting rod (43) extends into the inspection well (18) and pulls the swing arm (44) to rotate.

6. The electric vehicle charging station with spontaneous combustion isolation function according to claim 1, characterized in that: A counterweight (25) is installed at the bottom of the floating piston (23) and extends into the cavity (20). A rotatable guide plate (24) is provided inside the floating piston (23). A plurality of first guide holes (26) are provided above and below the floating piston (23). The guide plate (24) is provided with a plurality of second guide holes (27). The guide plate (24) rotates relative to the floating piston (23) so that the first guide holes (26) and the second guide holes (27) are aligned and connected.

7. The electric vehicle charging station with spontaneous combustion isolation function according to claim 1, characterized in that: A plurality of guide wheels (5) are provided at the end of the support beam (4), and a guide groove (7) cooperating with the guide wheels (5) for rolling in the vertical direction is provided in the vertical track (2).

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