Electric bicycle charging safety cabinet with fire retardance and explosion suppression functions

Abstract

The invention relates to the technical field of charging safety cabinets, and discloses an electric bicycle charging safety cabinet with fire-retardant and explosion-suppression functions, comprising: a cabinet body which is internally provided with a charging cavity and a fire-retardant cavity, and in which a to-be-charged battery can be placed; the fire-retardant assembly is installed in the fire-retardant cavity and comprises a fire-retardant channel, one end of the fire-retardant channel is communicated with the charging cavity, the other end of the fire-retardant channel can be communicated with the outer space of the top of the cabinet body when fire occurs in the charging cavity, flames in the charging cavity can enter the fire-retardant channel, and the fire-retardant assembly further comprises a heat dissipation piece which is connected with the fire-retardant channel. And the flame temperature in the fire-retardant channel can be reduced. According to the invention, by arranging the fire-retardant channel, the pressure generated by battery detonation can be effectively released, the flame temperature of battery ignition can be effectively reduced, the functions of fire retardance and detonation inhibition are realized, the use is safer, and in addition, the fire-retardant channel is also in a bendable spiral shape, so that the fire-retardant channel can be used for preventing the explosion of the battery when the battery is detonated. And the deflagration pressure is buffered through elastic deformation.

Description

Technical Field

[0001] This invention relates to the field of charging safety cabinet technology, and more specifically to an electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions. Background Technology

[0002] Currently, many places are equipped with charging cabinets for electric vehicle batteries. When using them, the electric vehicle battery can be directly removed and placed into the charging cabinet, which greatly saves the space occupied by charging. Therefore, they are gradually becoming widely used.

[0003] However, most electric vehicle batteries are lithium batteries. Because lithium ions are very active, these batteries are prone to catching fire when exposed to high temperatures, damage, or even significant vibration. Therefore, charging cabinets are usually equipped with fire extinguishers that can extinguish fires in the battery area when they catch fire.

[0004] However, when a lithium battery catches fire, it reacts internally to generate high temperatures and produce oxygen, making it virtually impossible for fire extinguishing devices to put out the fire. They can only try to prevent the fire from spreading. Moreover, when a lithium battery catches fire, it usually causes a deflagration, which conventional fire extinguishing devices cannot prevent and can easily cause great damage. In response to this, the present invention provides a safety cabinet for electric bicycle charging with fire-resistant and explosion-suppressing functions. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions to solve the problems existing in the background art.

[0006] The present invention provides the following technical solution: an electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions, comprising: a cabinet body, which has a charging cavity and a fire-retardant cavity inside, wherein the battery to be charged can be placed in the charging cavity; and a fire-retardant component installed in the fire-retardant cavity, wherein the fire-retardant component includes a fire-retardant channel, one end of which is connected to the charging cavity, and the other end of which can be connected to the external space at the top of the cabinet body when a fire occurs in the charging cavity, so that the flame in the charging cavity enters the fire-retardant channel; the fire-retardant component also includes a heat dissipation component connected to the fire-retardant channel, which can reduce the flame temperature in the fire-retardant channel.

[0007] Furthermore, the fire-arresting chamber is located above the charging chamber. One end of the fire-arresting channel is connected to the top of the fire-arresting chamber, and the other end extends to the outside of the top of the cabinet and is equipped with an opening and closing component. The opening and closing component can control the opening or closing of the end of the fire-arresting channel, and opens when the battery in the charging chamber catches fire. When the opening and closing component is opened, the flame in the charging chamber will enter the fire-arresting channel.

[0008] Furthermore, the opening and closing assembly includes a protective cover, a slip ring, a connecting rod, and a limiting ring. The protective cover covers the end of the fire-resistant channel, the slip ring is slidably disposed within the fire-resistant channel, one end of the connecting rod is fixedly connected to the slip ring, and the other end is fixedly connected to the protective cover. The limiting ring is fixedly installed at the end of the fire-resistant channel and can prevent the slip ring from sliding out of the fire-resistant channel.

[0009] Furthermore, the flame-arresting channel is bent in shape, and the heat dissipation component is installed inside the flame-arresting channel, which can increase the contact area between the flame and the flame-arresting channel, and at the same time increase the resistance of the flame passing through the flame-arresting channel.

[0010] Furthermore, the heat dissipation components include several bars that are intricately distributed within the fire-resistant channel and are fixedly connected to the fire-resistant channel.

[0011] Furthermore, the heat dissipation component also includes a heat conduction channel, which is located in the middle of the railing and runs through the railing and communicates with the fire-resistant cavity.

[0012] Furthermore, the heat dissipation component also includes coolant, which is placed inside the flame arresting chamber. The top of the charging chamber is equipped with a spray pipe, and the bottom of the flame arresting chamber is equipped with a drain pipe. The bottom end of the drain pipe is connected to the spray pipe, and a separator is fixedly installed in the middle of the connecting pipe to separate the connecting pipe. The separator can break at high temperature, and the breakage of the separator will cause the drain pipe, the connecting pipe and the spray pipe to connect.

[0013] Furthermore, an impact hammer is slidably installed on the inner top of the charging chamber. When it slides, it will impact the connecting pipe and break the partition. A drive rod is fixedly installed on the end of the impact hammer away from the connecting pipe. A compression spring is connected between the drive rod and the inner top of the charging chamber. A locking pin is inserted into the side of the impact hammer. A bimetallic strip is fixedly installed on the inner top of the charging chamber. When heated, the bimetallic strip will bend and push the locking pin to slide out from the surface of the impact hammer. When the locking pin slides out from the surface of the impact hammer, the compression spring will be released and the drive rod will drive the impact hammer to slide to impact the connecting pipe.

[0014] Furthermore, the fire-arresting channel includes an inlet pipe, an outlet pipe, a connecting bend pipe, and an intermediate pipe. The inlet pipe is connected to the charging chamber, the outlet pipe is slidably inserted into the top of the fire-arresting chamber, and the connecting bend pipe and the intermediate pipe are connected between the inlet pipe and the outlet pipe to make the inlet pipe and the outlet pipe conductive.

[0015] Furthermore, the intermediate tube includes clamping tubes and mounting rings. There are several mounting rings arranged adjacent to each other. The guardrail is installed in the middle of the mounting rings. Both ends of the mounting rings are respectively machined with a socket and a ring. The socket can be inserted into the ring. There are two sets of clamping tubes, located at both ends of the mounting rings. One set of clamping tubes can be mated with the socket, and the other set of clamping tubes can be mated with the socket. The guardrail is fixedly installed in the middle of the mounting rings, and the guardrails in the two mounting rings are staggered.

[0016] The technical effects and advantages of this invention are as follows: This invention, by setting a flame-arresting channel, can effectively release the pressure generated by battery deflagration and reduce the flame temperature of battery fire, achieving the functions of flame arrest and deflagration suppression, making it safer to use. In addition, the flame-arresting channel is also a flexible spiral shape, which allows the flame-arresting channel to elastically deform during battery deflagration to buffer the deflagration pressure, thereby further reducing the destructive force of deflagration. At the same time, the baffles set in the flame-arresting channel can not only block the flame, but also further absorb the flame temperature and transfer the flame temperature to the coolant. Moreover, the hollow structure of the baffles can also allow coolant to enter, thereby enhancing the cooling effect on the flame. In addition, after deflagration ends, deflagration or continued flame burning will cause the separator to break, allowing the coolant in the flame-arresting chamber to enter the charging chamber to further enhance the fire extinguishing effect on the battery. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a first-view schematic diagram of the internal structure of the present invention; Figure 3 This is a second-view schematic diagram of the internal structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the intermediate tube structure of the present invention.

[0018] The attached figures are labeled as follows: 1. Cabinet; 11. Charging chamber; 111. Nozzle; 112. Drain pipe; 113. Connecting pipe; 114. Divider; 115. Impact hammer; 116. Drive rod; 117. Locking pin; 118. Bimetallic strip; 12. Flame arrestor chamber; 2. Flame arrestor assembly; 21. Flame arrestor channel; 211. Flame inlet pipe; 212. Flame outlet pipe; 213. Connecting bend pipe; 214. Intermediate pipe; 2141. Locking pipe; 2142. Mounting ring; 2143. Socket; 2144. Insert ring; 22. Heat sink; 221. Bar; 222. Heat conduction channel; 23. Opening and closing assembly; 231. Protective cover; 232. Slip ring; 233. Connecting rod; 234. Limiting ring. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative and are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Reference Figure 1-6 This invention provides a safety charging cabinet for electric bicycles with fire-retardant and explosion-suppressing functions, comprising: a cabinet body 1, which has a charging chamber 11 and a fire-retardant chamber 12 inside. The battery to be charged can be placed in the charging chamber 11, and a charging power supply is installed in the charging chamber 11 to charge the battery. The installation method is conventional, so this invention will not describe it in detail. It also includes a fire-retardant component 2, which is installed in the fire-retardant chamber 12. The fire-retardant component 2 includes a fire-retardant channel 21, one end of which is connected to the charging chamber 11, and the other end of which can be connected to the external space at the top of the cabinet body 1 (the top includes the top of the cabinet body 1 and the side top space) when a fire occurs in the charging chamber 11, so that the flame in the charging chamber 11 enters the fire-retardant channel 21. The fire-retardant component 2 also includes a heat sink 22, which is connected to the fire-retardant channel 21 and can reduce the temperature of the flame in the fire-retardant channel 21.

[0021] When the battery in the charging chamber 11 spontaneously combusts during use, the temperature of the flame will increase the internal air pressure of the charging chamber 11. This air pressure will enter the flame arrestor channel 21 and be discharged from the other end, which is the top of the cabinet 1. During this process, the flame in the charging chamber 11 will also enter the flame arrestor channel 21 to burn, thereby relieving the pressure generated by the battery explosion and reducing the destructive force of the explosion. The flame arrestor channel 21 has a certain length, which allows the flame to cool down after passing through the flame arrestor channel 21, which can effectively extinguish the fire. At the same time, the heat sink 22 can further reduce the temperature of the flame in the flame arrestor channel 21, thereby further realizing the flame arrestor function.

[0022] The fire-resistant chamber 12 is located above the charging chamber 11. One end of the fire-resistant channel 21 is connected to the top of the fire-resistant chamber 12, and the other end extends to the outside of the top of the cabinet 1 and is equipped with an opening and closing component 23. The opening and closing component 23 can control the opening or closing of the end of the fire-resistant channel 21, and opens when the battery in the charging chamber 11 catches fire. When the opening and closing component 23 is opened, the flame in the charging chamber 11 will enter the fire-resistant channel 21. The opening and closing component 23 includes a protective cover 231, a slip ring 232, a connecting rod 233, and a limiting ring 234. The protective cover 231 covers the end of the fire-resistant channel 21. The slip ring 232 is slidably disposed in the fire-resistant channel 21. One end of the connecting rod 233 is fixedly connected to the slip ring 232, and the other end is fixedly connected to the protective cover 231. The limiting ring 234 is fixedly installed at the end of the fire-resistant channel 21 and can prevent the slip ring 232 from sliding out of the fire-resistant channel 21.

[0023] In this way, after the battery in the charging chamber 11 catches fire and the temperature rises, the internal air pressure will simultaneously push the protective cover 231 to slide out from the end of the fire-resistant channel 21, thereby connecting the charging chamber 11 with the external space of the cabinet 1 to release pressure and guide the flame into the interior of the fire-resistant channel 21.

[0024] It should be noted that the protective cover 231 and the end of the fire-resistant channel 21 are fitted with a very loose gap. Its main function is only to prevent rainwater from entering the fire-resistant channel 21, thereby ensuring that the flame and pressure of the charging cabinet can easily flow out of the fire-resistant channel 21.

[0025] The fire-resistant channel 21 is bent, which can further increase the heat dissipation area and thus further improve the fire-resistant performance. At the same time, the heat dissipation component 22 includes several bars 221, which are intricately distributed in the fire-resistant channel 21 and fixedly connected to the fire-resistant channel 21. This increases the difficulty for flames to pass through the fire-resistant channel 21, so that only the airflow of smoke passes through the fire-resistant channel 21, preventing flames from flowing out and improving safety.

[0026] The heat sink 22 also includes a heat conduction channel 222, which is located in the middle of the bar 221. The heat conduction channel 222 passes through the bar 221 and communicates with the fire-arresting cavity 12. In this way, the contact area can be increased again, thereby further improving the fire-arresting function.

[0027] The heat sink 22 also includes coolant, which is placed inside the flame arrestor chamber 12. The top of the charging chamber 11 is provided with a spray pipe 111, and the bottom of the flame arrestor chamber 12 is provided with a drain pipe 112. The bottom end of the drain pipe 112 is connected to the spray pipe 111 by a connecting pipe 113. A partition 114 is fixedly installed in the middle of the connecting pipe 113 to separate the connecting pipe 113. The partition 114 can be broken at high temperature. The partition 114 can be made of glass, and the breakage of the partition 114 will connect the drain pipe 112, the connecting pipe 113 and the spray pipe 111.

[0028] Thus, when the battery in the charging chamber 11 catches fire, the high temperature generated will continuously burn the separator 114, causing the separator 114 to break. At this time, the coolant in the flame arrestor chamber 12 will enter the spray nozzle 111 from the drain pipe 112 and the connecting pipe 113, and then flow out from the spray nozzle 111 to spray the battery in the charging chamber 11, thereby further improving the flame arrestor function.

[0029] It should be noted that a pressure relief valve needs to be installed on the top of the flame arrestor chamber 12, that is, the top surface of the cabinet 1, to prevent the coolant from heating up and causing excessive pressure in the flame arrestor chamber 12, which could lead to danger. Its structure and installation method are existing technologies and will not be described in detail in this invention.

[0030] An impact hammer 115 is slidably mounted on the top of the charging chamber 11. When it slides, it will impact the connecting pipe 113 and break the partition 114. A drive rod 116 is fixedly mounted on the end of the impact hammer 115 away from the connecting pipe 113. A compression spring is connected between the drive rod 116 and the top of the charging chamber 11. A locking pin 117 is inserted into the side of the impact hammer 115. A bimetallic strip 118 is fixedly mounted on the top of the charging chamber 11. When heated, the bimetallic strip 118 will bend and push the locking pin 117 to slide out from the surface of the impact hammer 115. When the locking pin 117 slides out from the surface of the impact hammer 115, the compression spring will be released and the drive rod 116 will drive the impact hammer 115 to slide to impact the connecting pipe 113.

[0031] Thus, when a fire occurs inside the charging chamber 11, the flame temperature will cause the bimetallic strip 118 to bend, causing the locking pin 117 to slide off the surface of the impact hammer 115. In this way, the compression spring will cause the drive rod 116 to slide, thereby causing the impact hammer 115 to strike the connecting pipe 113, which will shatter the internal partition 114.

[0032] The fire-arresting channel 21 includes an inlet pipe 211, an outlet pipe 212, a connecting bend pipe 213, and an intermediate pipe 214. The inlet pipe 211 is connected to the charging chamber 11. The outlet pipe 212 is slidably inserted into the top of the fire-arresting chamber 12. The connecting bend pipe 213 and the intermediate pipe 214 are connected between the inlet pipe 211 and the outlet pipe 212, making the inlet pipe 211 and the outlet pipe 212 conductive.

[0033] In this way, the intermediate tube 214 can be bent in different directions by connecting the bend 213, thereby obtaining more heat dissipation area. The accompanying drawings of this invention provide a more ideal embodiment, that is, the entire fire-resistant channel 21 is bent into a spiral upward shape. This structure can not only have a large heat dissipation area, but also make the entire fire-resistant channel 21 have a certain elastic deformation capability. In this way, when the battery explodes in the charging cavity 11, it can be buffered by elastic deformation to avoid greater damage caused by the explosion.

[0034] The intermediate tube 214 includes a clamping tube 2141 and mounting rings 2142. There are several mounting rings 2142 arranged adjacent to each other. A barrier 221 is installed in the middle of the mounting rings 2142. Both ends of the mounting rings 2142 are respectively machined with a socket 2143 and a insertion ring 2144. The socket 2143 can be inserted into the insertion ring 2144. There are two sets of clamping tubes 2141, located at both ends of the mounting rings 2142. One set of clamping tubes 2141 can be mated with the socket 2143, and the other set of clamping tubes 2141 can be mated with the socket 2143. The barrier 221 is fixedly installed in the middle of the mounting rings 2142, and the barrier 221 in the two mounting rings 2142 are staggered.

[0035] Thus, by simply arranging multiple mounting rings 2142 adjacent to each other and staggering adjacent mounting rings 2142, and then connecting adjacent mounting rings 2142 to the insertion rings 2144 via the insertion port 2143, and simultaneously connecting them to the clamping pipe 2141, an intermediate tube 214 can be assembled. The length of the intermediate tube 214 can be changed by freely adding the number of mounting rings 2142 as needed. At the same time, the flame resistance of the intermediate tube 214 can also be increased by freely adding the number of mounting rings 2142 and the angle of the stagger between adjacent mounting rings 2142 as needed, making the entire fire-resistant channel 21 more flexible in operation.

[0036] It should be noted that after the connection between the socket 2143 and the ring 2144 is completed, a layer of fire-resistant sealant needs to be applied to prevent coolant from entering the fire-resistant channel 21 and causing leakage. In addition, the mating surfaces of the socket 2143 and the ring 2144 are respectively machined with protrusions and recesses, and the recesses can mate with the protrusions. There are several recesses and protrusions, which are symmetrically distributed around the mounting ring 2142. In this way, the mating of the recesses and protrusions can prevent the two adjacent mounting rings 2142 from moving after installation, and also facilitate the alignment of the mounting ring 2142.

[0037] Therefore, the complete usage process is as follows: First, select multiple mounting rings 2142 and arrange them sequentially, ensuring that adjacent mounting rings 2142 are staggered. Ideally, all mounting rings 2142 should be staggered from each other. Then, connect adjacent mounting rings 2142 using slots 2143 and insert rings 2144. During this process, the positioning and limiting of the mounting rings 2142 can be achieved by aligning the protrusions and recesses. Finally, attach snap-fit ​​devices to both ends of these assembled mounting rings 2142. Pipe 2141 is assembled into intermediate pipe 214. Depending on actual needs, a suitable number of intermediate pipes 214 can be assembled. These are then connected to the inlet pipe 211 and outlet pipe 212 respectively via connecting bends 213, and sealant is applied to the connections. This forms the flame-arresting channel 21. It can then be installed inside the flame-arresting chamber 12. When the battery inside the charging chamber 11 catches fire, the high pressure generated by the flame explosion will enter the flame-arresting channel 21 and push open the protective cover 231. The high pressure will be discharged from the top of the flame arrestor channel 21, and the high pressure will also carry the flame into the flame arrestor channel 21. After entering the flame arrestor channel 21, the flame will be blocked by the heat sink 22, preventing the flame from flowing out of the flame arrestor channel 21. At the same time, the temperature of the flame will be transferred to the flame arrestor channel 21 and, together with the baffle 221 and its internal heat conduction channel 222, to the coolant. This will cause the flame temperature to drop sharply, thereby extinguishing the fire. In addition, during the combustion process, the high temperature will cause the separator 114 to break. This allows the connecting pipe 113 to become conductive. Simultaneously, the flame temperature causes the bimetallic strip 118 to bend, causing the locking pin 117 to slide off the surface of the impact hammer 115. In this way, the compression spring will drive the drive rod 116 to slide, thereby causing the impact hammer 115 to strike the connecting pipe 113. This will shatter the internal partition 114, ensuring that the partition 114 can be broken. After the connecting pipe 113 becomes conductive, coolant will be sprayed from the nozzle 111 to spray the burning battery, further enhancing the fire extinguishing effect.

[0038] In summary, this invention, by setting the flame-arresting channel 21, can effectively release the pressure generated by battery deflagration and reduce the flame temperature of battery fire, achieving the functions of flame arrest and deflagration suppression, making it safer to use. In addition, the flame-arresting channel 21 is also a flexible spiral shape, which allows the flame-arresting channel 21 to elastically deform during battery deflagration to buffer the deflagration pressure, thereby further reducing the destructive force of deflagration. At the same time, the baffle 221 set in the flame-arresting channel 21 can not only block the flame, but also further absorb the flame temperature and transfer the flame temperature to the coolant. Moreover, the hollow structure of the baffle 221 can also allow coolant to enter, thereby enhancing the cooling effect on the flame. In addition, after deflagration ends, deflagration or continued flame burning will also cause the separator 114 to break, thereby allowing the coolant in the flame-arresting chamber 12 to enter the charging chamber 11 to further enhance the fire extinguishing effect on the battery.

[0039] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can be referred to with ordinary designs. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A safety cabinet for charging electric bicycles with fire-retardant and explosion-suppressing functions, characterized in that, include: The cabinet (1) has a charging chamber (11) and a fire-resistant chamber (12) inside, and the battery to be charged can be placed in the charging chamber (11); The fire-arresting component (2) is installed in the fire-arresting cavity (12). The fire-arresting component (2) includes a fire-arresting channel (21), one end of which is connected to the charging cavity (11), and the other end can be connected to the external space at the top of the cabinet (1) when the charging cavity (11) catches fire, and allow the flame in the charging cavity (11) to enter the fire-arresting channel (21). The fire-arresting component (2) also includes a heat sink (22), which is connected to the fire-arresting channel (21) and can reduce the flame temperature in the fire-arresting channel (21).

2. The electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions according to claim 1, characterized in that: The fire-resistant chamber (12) is located above the charging chamber (11). One end of the fire-resistant channel (21) is connected to the top of the fire-resistant chamber (12), and the other end extends to the outside of the top of the cabinet (1) and is equipped with an opening and closing component (23). The opening and closing component (23) can control the opening or closing of the end of the fire-resistant channel (21) and opens when the battery in the charging chamber (11) catches fire. When the opening and closing component (23) is opened, the flame in the charging chamber (11) will enter the fire-resistant channel (21).

3. The electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions according to claim 2, characterized in that: The opening and closing assembly (23) includes a protective cover (231), a slip ring (232), a connecting rod (233), and a limiting ring (234). The protective cover (231) covers the end of the fire-resistant channel (21). The slip ring (232) is slidably disposed in the fire-resistant channel (21). One end of the connecting rod (233) is fixedly connected to the slip ring (232), and the other end is fixedly connected to the protective cover (231). The limiting ring (234) is fixedly installed at the end of the fire-resistant channel (21) and can prevent the slip ring (232) from sliding out of the fire-resistant channel (21).

4. The electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions according to claim 1, characterized in that: The fire-resistant channel (21) is bent, and the heat sink (22) is installed inside the fire-resistant channel (21), which can increase the contact area between the flame and the fire-resistant channel (21) and at the same time increase the resistance of the flame passing through the fire-resistant channel (21).

5. The electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions according to claim 4, characterized in that: The heat dissipation component (22) includes several bars (221) which are intricately distributed within the fire-resistant channel (21) and are fixedly connected to the fire-resistant channel (21).

6. The electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions according to claim 5, characterized in that: The heat dissipation component (22) also includes a heat conduction channel (222), which is located in the middle of the railing (221) and passes through the railing (221) and is connected to the fire-resistant cavity (12).

7. The electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions according to claim 6, characterized in that: The heat dissipation component (22) also includes coolant, which is placed inside the flame arrestor cavity (12). The top of the charging cavity (11) is provided with a nozzle (111), and the bottom of the flame arrestor cavity (12) is provided with a drain pipe (112). The bottom end of the drain pipe (112) is connected to the nozzle (111) by a connecting pipe (113). A separator (114) is fixedly installed in the middle of the connecting pipe (113) to separate the connecting pipe (113). The separator (114) can be broken at high temperature, and the breakage of the separator (114) will connect the drain pipe (112), the connecting pipe (113) and the nozzle (111).

8. The electric bicycle charging safety cabinet with fire-retardant and explosion-suppressing functions according to claim 7, characterized in that: An impact hammer (115) is slidably mounted on the top of the charging chamber (11). When it slides, it will impact the connecting pipe (113) and break the partition (114). A drive rod (116) is fixedly mounted on the end of the impact hammer (115) away from the connecting pipe (113). A compression spring is connected between the drive rod (116) and the top of the charging chamber (11). A locking pin (117) is inserted into the side of the impact hammer (115). A bimetallic strip (118) is fixedly mounted on the top of the charging chamber (11). When heated, the bimetallic strip (118) will bend and push the locking pin (117) to slide out from the surface of the impact hammer (115). When the locking pin (117) slides out from the surface of the impact hammer (115), the compression spring will be released and the drive rod (116) will drive the impact hammer (115) to slide to impact the connecting pipe (113).

9. A safety cabinet for charging electric bicycles with fire-retardant and explosion-suppressing functions according to claim 5, characterized in that: The fire-resistant channel (21) includes an inlet pipe (211), an outlet pipe (212), a connecting bend pipe (213), and an intermediate pipe (214). The inlet pipe (211) is connected to the charging chamber (11). The outlet pipe (212) is slidably inserted into the top of the fire-resistant chamber (12). The connecting bend pipe (213) and the intermediate pipe (214) are connected between the inlet pipe (211) and the outlet pipe (212) to make the inlet pipe (211) and the outlet pipe (212) conductive.

10. A safety cabinet for charging electric bicycles with fire-retardant and explosion-suppressing functions according to claim 9, characterized in that: The intermediate tube (214) includes a clamping tube (2141) and a mounting ring (2142). There are several mounting rings (2142) arranged adjacent to each other. The guardrail (221) is installed in the middle of the mounting ring (2142). The two ends of the mounting ring (2142) are respectively machined with a socket (2143) and a plug ring (2144). The socket (2143) can be inserted into the plug ring (2144). There are two sets of clamping tubes (2141), which are located at the two ends of the mounting ring (2142). One set of clamping tubes (2141) can be connected with the socket (2143), and the other end of the clamping tube (2141) can be connected with the socket (2143). The guardrail (221) is fixedly installed in the middle of the mounting ring (2142), and the guardrails (221) in the two mounting rings (2142) are staggered.

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