Automobile charging seat terminal

Abstract

The invention relates to the technical field of charging seat terminals, in particular to an automobile charging seat terminal which comprises a frame mechanism and a safety mechanism, the safety mechanism is arranged on the inner side of the frame mechanism, the frame mechanism comprises a positioning assembly and a closing assembly, and the closing assembly is arranged on the top of the inner side of the positioning assembly. The safety mechanism comprises a pressure relief assembly, a conduction assembly, a transmission assembly, a sensing assembly, a sealing assembly, a transmission assembly and a drainage assembly, the pressure relief assembly is arranged on the inner side of the positioning assembly, and the conduction assembly is arranged at the bottom of the pressure relief assembly. The invention provides an automobile charging seat terminal which is provided with an automatic sealing structure when a charging gun is connected, so that automatic sealing can be performed after the charging gun is connected, and meanwhile, the automobile charging seat terminal is provided with a structure for automatically filling protective gas for flame retardance when the charging seat terminal is overheated, so that the charging seat terminal can be automatically filled with the protective gas for flame retardance; and the flexibility when the charging seat terminal is connected with the charging gun is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of charging seat terminals, in particular to a car charging seat terminal. Background Art

[0002] As we all know, the car charging seat terminal is a key component of the electric vehicle charging system. It is used to connect the charging cable and the on-board battery to realize power transmission. It is usually made of conductive materials, has good conductivity and mechanical strength, and can stably transmit large currents during the charging process. With the popularization of new energy vehicles, the charging seat terminal needs to adapt to different charging standards and meet performance requirements such as high temperature resistance, corrosion resistance, and oxidation resistance to ensure safe and efficient charging. It is the core component for realizing electrical connection in the charging interface assembly.

[0003] After searching, a Chinese patent discloses a new energy vehicle charging seat, and its application publication number is: CN116960669B. The patent includes a charging seat shell, and a DC fast charging socket unit and an AC slow charging socket unit installed in the charging seat shell; the DC fast charging socket unit and the AC slow charging socket unit are each provided with a plurality of power terminal fixing holes, and the power terminal fixing holes are provided with power terminal 1 or power terminal 2; the power terminal 1 is used to transmit DC fast charging direct current; the power terminal 1 is divided into a connector insertion section 1 and a cable crimping section along the terminal insertion direction. The new energy vehicle charging seat provided by this invention ensures stable circuit connection by close contact between the elastic conductive sheet and the power head. Due to the elasticity of the spring conductive sheet itself, it can expand and contract along the assembly slot when the power head is plugged in and out, effectively reducing the mechanical strain on the elastic conductive sheet itself and ensuring the performance and stability of the wire.

[0004] When charging a new energy vehicle, a charging gun is used to connect to the charging seat terminal to achieve the effect of charging the new energy vehicle. The problems with the existing technology are: due to the lack of a structure for automatically sealing the charging gun when connected, it is impossible to automatically seal the charging gun after connection. At the same time, there is a lack of a structure for automatically filling the charging seat terminal with protective gas for flame retardancy when overheating, so the charging seat terminal cannot be automatically filled with protective gas for flame retardancy, which reduces the flexibility of the connection between the charging seat terminal and the charging gun. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the present invention provides a car charging seat terminal, which has a structure that automatically seals when the charging gun is connected, so it can be automatically sealed after the charging gun is connected. At the same time, it has a structure that automatically fills the charging seat terminal with protective gas to prevent flame retardancy when the charging seat terminal is overheated, so it can automatically fill the charging seat terminal with protective gas to prevent flame retardancy, thereby improving the flexibility of the connection between the charging seat terminal and the charging gun.

[0007] (2) Technical solution

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: A car charging seat terminal, including a frame mechanism and a safety mechanism, the safety mechanism is arranged on the inner side of the frame mechanism, the frame mechanism includes a positioning component and a closing component, the closing component is arranged at the top of the inner side of the positioning component, the safety mechanism includes a pressure relief component, a conduction component, a transmission component, an induction component, a sealing component, a transmission component and a drainage component, the pressure relief component is arranged on the inner side of the positioning component, the conduction component is arranged at the bottom of the pressure relief component, the transmission component is arranged at the rear side of the conduction component, the induction component is arranged on the inner side of the conduction component, the sealing component is arranged at the top of the pressure relief component, the transmission component is arranged at the rear side of the sealing component, and the drainage component is arranged at the rear side of the inner side of the transmission component.

[0009] By adopting the above technical solution, by setting up a frame mechanism and a safety mechanism, the frame mechanism can limit the safety mechanism and close it when the safety mechanism is not in use. The safety mechanism can seal the charging gun when the charging gun is connected, and can automatically deliver protective gas to the charging gun for flame retardancy when overheating.

[0010] The present invention is further configured as follows: the positioning assembly includes a positioning frame, a limiting sleeve and a closed shell, the limiting sleeve is fixedly connected to the top of the positioning frame, and the closed shell is fixedly connected to the rear side of the limiting sleeve.

[0011] By adopting the above technical solution, through setting the positioning component, the positioning frame can cooperate with the limiting sleeve and the closed shell, and the limiting sleeve and the closed shell are supported and limited by the positioning frame, so that the limiting sleeve can limit the overall structure of the closed component and the safety mechanism, and through the connection between the limiting sleeve and the closed shell, a closed space is formed after it is connected to the charging gun.

[0012] The present invention is further configured as follows: the closing assembly includes a positioning ring, a reset torsion spring rod and a closing cover plate, the positioning ring is fixedly connected to the top of the inner side of the limiting sleeve, the reset torsion spring rod is fixedly connected to the rear side of the positioning ring, and the closing cover plate is fixedly connected to the inner side of the reset torsion spring rod.

[0013] By adopting the above technical solution and setting up a closing component, the positioning ring can cooperate with the reset torsion spring rod and the closing cover plate. By limiting the reset torsion spring rod through the positioning ring, the reset torsion spring rod can limit the rotation of the closing cover plate with the positioning ring as the support point, thereby allowing the closing cover plate to achieve the effect of closing and opening with the closing shell.

[0014] The present invention is further configured as follows: the pressure relief assembly includes a slow flow sleeve, a guide groove and a drainage port, the slow flow sleeve is clamped on the inner side of the limit sleeve, the guide groove is opened on the rear side of the slow flow sleeve, and the drainage port is opened on the front side of the slow flow sleeve.

[0015] By adopting the above technical solution and setting up a pressure relief component, the slow flow sleeve can cooperate with the guide groove and the drainage port. Through the hollow structure design of the slow flow sleeve, the air in the slow flow sleeve can enter the hollow structure inside the slow flow sleeve for buffering, and through the limitation of the sealing component by the guide groove, the protective gas it transports can be filled into the slow flow sleeve, thereby discharging excess gas through the drainage port.

[0016] The present invention is further configured as follows: the conduction component includes a thermal conductive ring, a memory metal block and a sealing plate, the thermal conductive ring is fixedly connected to the top of the slow flow sleeve, the memory metal block is fixedly connected to the front side of the thermal conductive ring, the sealing plate is fixedly connected to the front side of the memory metal block, and the top of the rear side of the sealing plate is in contact with the front side of the drainage port.

[0017] By adopting the above technical solution, through the setting of the conduction component, the temperature conducting ring can cooperate with the memory metal block and the sealing plate, and the temperature of the sensing component can be transmitted through the temperature conducting ring, and the temperature can be transmitted to the memory metal block and the transmission component respectively, so that the memory metal block can change its own shape due to temperature changes under the influence of high temperature. According to the preset shape at high temperature, the sealing plate is driven away from the drainage port, so that the sealing state of the sealing plate to the drainage port can be changed according to different temperatures.

[0018] The present invention is further configured as follows: the transmission assembly includes a memory metal plate, a pressing plate and a guide comb plate, the memory metal plate is fixedly connected to the rear side of the temperature conducting ring, the pressing plate is fixedly connected to the rear side of the memory metal plate, and the guide comb plate is fixedly connected to the inner side of the pressing plate.

[0019] By adopting the above technical solution, a transmission component is set up, and the memory metal plate can cooperate with the pressing plate and the guide comb plate. The memory metal plate changes its own shape due to the different temperatures transmitted by the temperature conducting ring, and according to the preset deformation at high temperature, it can drive the pressing plate and the guide comb plate to press toward the transmission component, thereby achieving the effect of changing the air pressure in the transmission component. At the same time, it can drive the drainage component to move together, providing the required power for the drainage component to puncture the sealing component, and because there is a gap between the guide comb plates, the drainage component can be avoided to continuously achieve the squeezing effect in the transmission component.

[0020] The present invention is further configured as follows: the sensing component includes a transfer plate, a transfer sleeve and a connector body, the transfer plate is fixedly connected to the inner side of the temperature conducting ring, the transfer sleeve is connected to the top of the transfer plate, and the connector body is clamped on the inner side of the transfer sleeve.

[0021] By adopting the above technical solution, through the setting of the sensing component, the transfer plate can cooperate with the transfer sleeve and the connector body. The transfer sleeve is limited by the transfer plate, and the transfer sleeve can limit the connector body with the transfer plate as support. The connector body is an existing connector for connecting to the input end of the charging gun. The transfer sleeve can transfer the temperature generated by the connector body during charging to the transfer plate in real time, so that the transfer plate can transfer the temperature to the temperature conducting ring.

[0022] The present invention is further configured as follows: the sealing assembly includes an expansion ring, an extrusion airbag and a transmission port, the expansion ring is clamped on the top of the flow-reducing sleeve, the extrusion airbag is connected to the rear side of the expansion ring, the surface of the extrusion airbag is clamped with the inner side of the guide groove, and the transmission port is opened on the rear side of the expansion ring.

[0023] By adopting the above technical solution, through setting up a sealing component, the expansion ring can cooperate with the extrusion airbag and the transmission port. The extrusion airbag can be squeezed with the connected charging gun to transmit the internal gas to the expansion ring, allowing the expansion ring to expand and wrap the surface of the charging gun to achieve a sealing effect. The transmission port allows the transmission component to transmit the internal protective gas to the overall space of the expansion ring and the extrusion airbag, and can deliver the protective gas to the charging gun when the expansion ring is punctured by the drainage component.

[0024] The present invention is further configured as follows: the transmission component includes a connecting sleeve, a guide port and a storage airbag, the connecting sleeve is clamped on the rear side of the expansion ring, the guide port is opened on the inner side of the connecting sleeve, the front side of the guide port is connected to the rear side of the transmission port, and the storage airbag is connected to the rear side of the connecting sleeve.

[0025] By adopting the above technical solution, through setting up a transmission component, the connecting sleeve can cooperate with the guide port and the storage airbag, and be connected to the expansion ring through the connecting sleeve, so that the guide port and the transmission port can be connected to each other. The storage airbag can store the protective gas, and at the same time, as the pressing plate and the guide comb plate are pressed, the internal gas can be transmitted to the expansion ring and the extrusion airbag through the guide port, thereby providing them with protective gas, and the storage airbag can drive the drainage component to move toward the expansion ring.

[0026] The present invention is further configured as follows: the drainage assembly includes a separation plate, a wall-breaking needle and a drainage groove, the separation plate is clamped on the rear side of the inner side of the storage airbag, the wall-breaking needle is fixedly connected to the front side of the separation plate, and the drainage groove is opened on the surface of the wall-breaking needle.

[0027] By adopting the above technical solution, by setting up a drainage component, the separation plate can cooperate with the wall-breaking needle and the drainage groove. The separation plate can drive the wall-breaking needle to move toward the expansion ring as the storage airbag moves, so that the sharp point of the wall-breaking needle can be used to puncture the connection between the expansion ring and the charging gun, and the protective gas can be introduced from the extruded airbag to the vicinity of the charging gun through the drainage groove on its surface, thereby providing a protective gas environment for the charging gun and avoiding contact with flammable and explosive gases such as oxygen in the air, which may cause danger due to high temperature.

[0028] (3) Beneficial effects

[0029] Compared with the prior art, the present invention provides a car charging seat terminal with the following beneficial effects:

[0030] This car charging seat terminal has a frame mechanism, a positioning assembly that can cooperate with a closing assembly, and the positioning assembly supports and limits the closing assembly. When the positioning assembly is installed on the charging seat, the closing assembly and the entire structure of the safety mechanism can be limited on it. The closing assembly can protect the entire structure of the safety mechanism and form a closed space inside it. At the same time, the safety mechanism can be closed when not in use.

[0031] This automobile charging seat terminal is provided with a safety mechanism, and the pressure relief component can cooperate with the conduction component, the transmission component, the induction component, the sealing component, the transmission component and the drainage component. The induction component transfers heat to the transmission component and the transfer plate. The transmission component can change the sealing method of the pressure relief component as the temperature changes, so that the pressure relief component can discharge excess gas or keep its interior sealed. The transmission component can press the transmission component as the temperature changes, which can change the air pressure in the transmission component. At the same time, the transmission component can drive the drainage component to puncture the sealing component, thereby achieving the effect of transporting the protective gas inside the transmission component to the pressure relief component through the drainage component, and providing protective gas near the charging gun in the pressure relief component. The sealing component can change the internal air pressure environment as the thrust generated by the connection of the charging gun, thereby wrapping the surface of the charging gun, achieving the effect of forming a sealed space between the charging gun and the environment in the pressure relief component, and can automatically seal the charging gun, thereby improving the flexibility when charging new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 Schematic diagram of the framework structure of the present invention;

[0034] Figure 3 is a schematic diagram of the positioning component structure in the present invention;

[0035] Figure 4 is a schematic diagram of the closed component structure of the present invention;

[0036] Figure 5 A schematic diagram of the structure of the insurance mechanism in the present invention;

[0037] Figure 6 is a schematic diagram of the pressure relief assembly structure of the present invention;

[0038] Figure 7 is a schematic diagram of the conductive component structure of the present invention;

[0039] Figure 8 is a schematic diagram of the transmission assembly structure of the present invention;

[0040] Figure 9 is a schematic diagram of the structure of the sensing component in the present invention;

[0041] Figure 10 is a schematic diagram of the sealing assembly structure of the present invention;

[0042] Figure 11 is a schematic diagram of the transmission assembly structure of the present invention;

[0043] Figure 12 Schematic diagram of the drainage component structure in the present invention.

[0044] In the figure: 1. Frame mechanism; 11. Positioning assembly; 111. Positioning frame; 112. Positioning sleeve; 113. Enclosed housing; 12. Enclosed assembly; 121. Positioning ring; 122. Reset torsion spring rod; 123. Enclosed cover; 2. Safety mechanism; 21. Pressure relief assembly; 211. Flow control sleeve; 212. Guide groove; 213. Drain port; 22. Conducting assembly; 221. Temperature conducting ring; 222. Memory metal block; 223. Sealing plate; 23. Transmission assembly; 231. Memory metal plate; 232. Pressing plate; 233. Guide comb plate; 24. Sensing component; 241. Transfer plate; 242. Transfer sleeve; 243. Connector body; 25. Sealing component; 251. Expansion ring; 252. Extrusion airbag; 253. Transfer port; 26. Transfer component; 261. Connecting sleeve; 262. Guide port; 263. Storage airbag; 27. Drainage component; 271. Separation plate; 272. Wall-breaking needle; 273. Drainage trough. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] Example 1

[0047] See also Figure 1-4 A car charging seat terminal includes a frame mechanism 1, which includes a positioning component 11 and a closing component 12. The closing component 12 is arranged at the top of the inner side of the positioning component 11. The frame mechanism 1 and the positioning component 11 can cooperate with the closing component 12. The closing component 12 is supported and limited by the positioning component 11. When the positioning component 11 is installed on the charging seat, the closing component 12 and the overall structure of the insurance mechanism 2 can be limited thereon. The closing component 12 can protect the overall structure of the insurance mechanism 2, and at the same time, a closed space can be formed inside it. At the same time, the insurance mechanism 2 can be closed when it is not in use.

[0048] Among them, the positioning component 11 includes a positioning frame 111, a limiting sleeve 112 and a closed shell 113. The limiting sleeve 112 is fixedly connected to the top of the positioning frame 111, and the closed shell 113 is fixedly connected to the rear side of the limiting sleeve 112. By setting the positioning component 11, the positioning frame 111 can cooperate with the limiting sleeve 112 and the closed shell 113. The limiting sleeve 112 and the closed shell 113 are supported and limited by the positioning frame 111, so that the limiting sleeve 112 can limit the overall structure of the closed component 12 and the safety mechanism 2, and through the connection between the limiting sleeve 112 and the closed shell 113, a closed space is formed after it is connected to the charging gun.

[0049] Among them, the closing component 12 includes a positioning ring 121, a reset torsion spring rod 122 and a closing cover plate 123. The positioning ring 121 is fixedly connected to the top of the inner side of the limiting sleeve 112, the reset torsion spring rod 122 is fixedly connected to the rear side of the positioning ring 121, and the closing cover plate 123 is fixedly connected to the inner side of the reset torsion spring rod 122. By setting the closing component 12, the positioning ring 121 can cooperate with the reset torsion spring rod 122 and the closing cover plate 123. The positioning ring 121 limits the reset torsion spring rod 122, so that the reset torsion spring rod 122 can limit the rotation of the closing cover plate 123 with the positioning ring 121 as the support point, so that the closing cover plate 123 can achieve the effect of closing and opening with the closing shell 113.

[0050] The working principle of this embodiment is as follows: first, the positioning frame 111 is installed on the charging base. When the charging gun needs to be connected, the closed cover 123 is opened along the reset torsion spring rod 122, and then the charging gun is connected to the safety mechanism 2. When the charging gun does not need to be connected, the charging gun is pulled out, and the closed cover 123 is reset by the elastic force of the reset torsion spring rod 122.

[0051] Example 2

[0052] refer to Figure 5-12, a car charging seat terminal also includes an insurance mechanism 2, wherein the insurance mechanism 2 includes a pressure relief component 21, a conduction component 22, a transmission component 23, a sensing component 24, a sealing component 25, a transmission component 26 and a drainage component 27, the pressure relief component 21 is arranged on the inner side of the positioning component 11, the conduction component 22 is arranged at the bottom of the pressure relief component 21, the transmission component 23 is arranged on the rear side of the conduction component 22, the sensing component 24 is arranged on the inner side of the conduction component 22, the sealing component 25 is arranged on the top of the pressure relief component 21, the transmission component 26 is arranged on the rear side of the sealing component 25, and the drainage component 27 is arranged on the rear side of the inner side of the transmission component 26, the insurance mechanism 2, the pressure relief component 21 can cooperate with the conduction component 22, the transmission component 23, the sensing component 24, the sealing component 25, the transmission component 26 and the drainage component 27, the sensing component 24 transfers heat to the transmission component 23 and the transfer plate 241, The dynamic component 23 can change the sealing method of the pressure relief component 21 as the temperature changes, so that the pressure relief component 21 can discharge excess gas or keep its interior sealed. The transmission component 23 can press the transmission component 26 as the temperature changes, which can change the air pressure inside the transmission component 26. At the same time, the transmission component 26 can drive the drainage component 27 to puncture the sealing component 25, thereby achieving the effect of transporting the protective gas inside the transmission component 26 to the pressure relief component 21 through the drainage component 27, and providing protective gas near the charging gun in the pressure relief component 21. The sealing component 25 can change the internal air pressure environment as the thrust generated by the charging gun connection, thereby wrapping the surface of the charging gun, achieving the effect of forming a sealed space between the charging gun and the environment inside the pressure relief component 21, and can automatically seal the charging gun, thereby improving the flexibility when charging new energy vehicles.

[0053] Among them, the pressure relief component 21 includes a slow flow sleeve 211, a guide groove 212 and a drain port 213. The slow flow sleeve 211 is clamped on the inner side of the limiting sleeve 112, the guide groove 212 is opened on the rear side of the slow flow sleeve 211, and the drain port 213 is opened on the front side of the slow flow sleeve 211. By setting the pressure relief component 21, the slow flow sleeve 211 can cooperate with the guide groove 212 and the drain port 213. Through the hollow structure design of the slow flow sleeve 211, the air in the slow flow sleeve 211 can enter the hollow structure inside the slow flow sleeve 211 for buffering, and through the limitation of the sealing component 25 by the guide groove 212, the protective gas it transports can be filled into the slow flow sleeve 211, so that the excess gas can be discharged through the drain port 213.

[0054] Among them, the conduction component 22 includes a temperature conducting ring 221, a memory metal block 222 and a sealing plate 223. The temperature conducting ring 221 is fixedly connected to the top of the slow flow sleeve 211, the memory metal block 222 is fixedly connected to the front side of the temperature conducting ring 221, and the sealing plate 223 is fixedly connected to the front side of the memory metal block 222. The top of the rear side of the sealing plate 223 contacts the front side of the drainage port 213. By setting the conduction component 22, the temperature conducting ring 221 can cooperate with the memory metal block 222 and the sealing plate 223, and transmit the temperature of the sensing component 24 through the temperature conducting ring 221. The temperature can be transmitted to the memory metal block 222 and the transmission component 23 respectively, so that the memory metal block 222 can change its own shape due to temperature changes under the influence of high temperature. According to the preset shape at high temperature, it drives the sealing plate 223 away from the drainage port 213, so that the sealing state of the sealing plate 223 to the drainage port 213 can be changed according to different temperatures.

[0055] Among them, the transmission assembly 23 includes a memory metal plate 231, a pressing plate 232 and a guide comb plate 233. The memory metal plate 231 is fixedly connected to the rear side of the temperature conducting ring 221, the pressing plate 232 is fixedly connected to the rear side of the memory metal plate 231, and the guide comb plate 233 is fixedly connected to the inner side of the pressing plate 232. By setting the transmission assembly 23, the memory metal plate 231 can cooperate with the pressing plate 232 and the guide comb plate 233. The memory metal plate 231 transmits different temperatures as the temperature conducting ring 221 transmits different temperatures. Due to its characteristic of changing its own appearance due to different temperatures, according to the preset deformation at high temperature, it can drive the pressing plate 232 and the guide comb plate 233 to press toward the transmission component 26, thereby achieving the effect of changing the air pressure in the transmission component 26, and at the same time, it can drive the drainage component 27 to move together, providing the required power for the drainage component 27 to pierce the sealing component 25, and because there is a gap between the guide comb plates 233, the drainage component 27 can be avoided to continuously achieve the squeezing effect in the transmission component 26.

[0056] Among them, the sensing component 24 includes a transfer plate 241, a transfer sleeve 242 and a connector body 243. The transfer plate 241 is fixedly connected to the inner side of the thermal conductive ring 221, the transfer sleeve 242 is connected to the top of the transfer plate 241, and the connector body 243 is clamped on the inner side of the transfer sleeve 242. By setting the sensing component 24, the transfer plate 241 can cooperate with the transfer sleeve 242 and the connector body 243. The transfer sleeve 242 is limited by the transfer plate 241, so that the transfer sleeve 242 can limit the connector body 243 with the transfer plate 241 as support. The connector body 243 is an existing connector for connecting to the input end of the charging gun. The transfer sleeve 242 can transfer the temperature generated during charging of the connector body 243 to the transfer plate 241 in real time, so that the transfer plate 241 can transfer the temperature to the thermal conductive ring 221.

[0057] Among them, the sealing component 25 includes an expansion ring 251, an extrusion airbag 252 and a transmission port 253. The expansion ring 251 is clamped on the top of the slow-flow sleeve 211, and the extrusion airbag 252 is connected to the rear side of the expansion ring 251. The surface of the extrusion airbag 252 is clamped with the inner side of the guide groove 212, and the transmission port 253 is opened on the rear side of the expansion ring 251. By setting the sealing component 25, the expansion ring 251 can cooperate with the extrusion airbag 252 and the transmission port 253. Through the extrusion airbag 252, as the connected charging gun is squeezed, the internal gas can be transmitted to the expansion ring 251, allowing the expansion ring 251 to expand and wrap the surface of the charging gun to achieve a sealing effect. The transmission port 253 allows the transmission component 26 to transmit the internal protective gas to the entire space of the expansion ring 251 and the extrusion airbag 252, and can transport the protective gas to the charging gun when the expansion ring 251 is punctured by the drainage component 27.

[0058] Among them, the transmission component 26 includes a connecting sleeve 261, a guide port 262 and a storage airbag 263. The connecting sleeve 261 is clamped on the rear side of the expansion ring 251, the guide port 262 is opened on the inner side of the connecting sleeve 261, the front side of the guide port 262 is connected to the rear side of the transmission port 253, and the storage airbag 263 is connected to the rear side of the connecting sleeve 261. By setting the transmission component 26, the connecting sleeve 261 can cooperate with the guide port 262 and the storage airbag 263, and be connected to the expansion ring 251 through the connecting sleeve 261, so that the guide port 262 and the transmission port 253 can be connected to each other. The storage airbag 263 can store the protective gas, and at the same time, as the pressing plate 232 and the guide comb plate 233 are pressed, the internal gas can be transmitted to the expansion ring 251 and the extrusion airbag 252 through the guide port 262, thereby providing them with protective gas, and the storage airbag 263 can drive the drainage component 27 to move toward the expansion ring 251.

[0059] Among them, the drainage component 27 includes a separation plate 271, a wall-breaking needle 272 and a drainage groove 273. The separation plate 271 is clamped on the rear side of the inner side of the storage air bag 263, the wall-breaking needle 272 is fixedly connected to the front side of the separation plate 271, and the drainage groove 273 is opened on the surface of the wall-breaking needle 272. By setting the drainage component 27, the separation plate 271 can cooperate with the wall-breaking needle 272 and the drainage groove 273. The separation plate 271 can drive the wall-breaking needle 272 to move toward the expansion ring 251 as the storage air bag 263 moves, so that the sharp point of the wall-breaking needle 272 can be used to puncture the connection between the expansion ring 251 and the charging gun, and the protective gas can be introduced from the extrusion air bag 252 to the vicinity of the charging gun through the drainage groove 273 on its surface, thereby providing a protective gas environment for the charging gun to avoid contact with flammable and explosive gases such as oxygen in the air due to high temperature and danger.

[0060] The working principle of this embodiment is as follows: First, when the charging gun needs to be connected, the charging gun is connected to the connector body 243. At this time, the charging gun will squeeze the extrusion airbag 252 and transport the gas in the extrusion airbag 252 to the expansion ring 251. The expansion ring 251 will expand due to the input of gas and wrap the surface of the charging gun. When the charging gun and the connector body 243 continue to generate heat, the transfer sleeve 242 will transfer the heat to the temperature conducting ring 221 through the transfer plate 241. The temperature conducting ring 221 will transfer the heat to the memory metal block 222 and the memory metal plate 231 respectively. The memory metal block 222 will deform with the preset temperature, and the heat will drive the sealing plate 223 away from the drainage port 213. At this time, the gas expanded by the heat in the slow flow sleeve 211 will be discharged through the drainage port 213, and then the memory metal plate 231 will be discharged with the preset temperature. Assuming temperature deformation, the heat drives the pressing plate 232 to press the guide comb plate 233 toward the storage air bag 263 toward the slow flow sleeve 211, and then the storage air bag 263 will drive the separation plate 271 to move the wall breaking needle 272 toward the expansion ring 251 until the wall breaking needle 272 punctures the expansion ring 251, and then the protective gas in the storage air bag 263 will pass through the punctured hole and flow along the drainage groove 273 to the vicinity of the charging gun, and the protective gas will enter the expansion ring 251 from the guide port 262 through the transmission port 253, and then pass through the hole into the slow flow sleeve 211, and at the same time, the excess gas in the slow flow sleeve 211 will be discharged to the drainage port 213, and then the guide comb plate 233 will avoid the separation plate 271 and press the storage air bag 263 until the protective gas in the storage air bag 263 is evenly transported to the vicinity of the charging gun.

[0061] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car charging seat terminal, comprising a frame mechanism (1) and a safety mechanism (2), characterized in that: The safety mechanism (2) is arranged on the inner side of the frame mechanism (1), the frame mechanism (1) includes a positioning component (11) and a closing component (12), the closing component (12) is arranged on the top of the inner side of the positioning component (11), the safety mechanism (2) includes a pressure relief component (21), a conduction component (22), a transmission component (23), an induction component (24), a sealing component (25), a transmission component (26) and a drainage component (27), the pressure relief component (21 ) is arranged on the inner side of the positioning component (11), the conducting component (22) is arranged on the bottom of the pressure relief component (21), the transmission component (23) is arranged on the rear side of the conducting component (22), the sensing component (24) is arranged on the inner side of the conducting component (22), the sealing component (25) is arranged on the top of the pressure relief component (21), the transmission component (26) is arranged on the rear side of the sealing component (25), and the drainage component (27) is arranged on the rear side of the inner side of the transmission component (26).

2. The automobile charging terminal according to claim 1, characterized in that: The positioning assembly (11) comprises a positioning frame (111), a limiting sleeve (112) and a closed shell (113); the limiting sleeve (112) is fixedly connected to the top of the positioning frame (111); and the closed shell (113) is fixedly connected to the rear side of the limiting sleeve (112).

3. The car charging seat terminal according to claim 2, characterized in that: The closing assembly (12) comprises a positioning ring (121), a return torsion spring rod (122) and a closing cover plate (123); the positioning ring (121) is fixedly connected to the top of the inner side of the limiting sleeve (112); the return torsion spring rod (122) is fixedly connected to the rear side of the positioning ring (121); and the closing cover plate (123) is fixedly connected to the inner side of the return torsion spring rod (122).

4. The automobile charging terminal according to claim 3, characterized in that: The pressure relief assembly (21) comprises a slow-flow sleeve (211), a guide groove (212) and a drainage port (213); the slow-flow sleeve (211) is clamped on the inner side of the limiting sleeve (112); the guide groove (212) is provided on the rear side of the slow-flow sleeve (211); and the drainage port (213) is provided on the front side of the slow-flow sleeve (211).

5. The automobile charging seat terminal according to claim 4, characterized in that: The conduction assembly (22) comprises a thermal conductive ring (221), a memory metal block (222) and a sealing plate (223); the thermal conductive ring (221) is fixedly connected to the top of the slow flow sleeve (211); the memory metal block (222) is fixedly connected to the front side of the thermal conductive ring (221); the sealing plate (223) is fixedly connected to the front side of the memory metal block (222); and the top of the rear side of the sealing plate (223) contacts the front side of the drainage port (213).

6. The automobile charging seat terminal according to claim 5, characterized in that: The transmission assembly (23) comprises a memory metal plate (231), a pressing plate (232) and a guide comb plate (233); the memory metal plate (231) is fixedly connected to the rear side of the temperature conducting ring (221); the pressing plate (232) is fixedly connected to the rear side of the memory metal plate (231); and the guide comb plate (233) is fixedly connected to the inner side of the pressing plate (232).

7. The automobile charging seat terminal according to claim 5, characterized in that: The sensing component (24) includes a transfer plate (241), a transfer sleeve (242) and a connector body (243); the transfer plate (241) is fixedly connected to the inner side of the thermal conductive ring (221); the transfer sleeve (242) is connected to the top of the transfer plate (241); and the connector body (243) is clamped on the inner side of the transfer sleeve (242).

8. The automobile charging seat terminal according to claim 4, characterized in that: The sealing assembly (25) includes an expansion ring (251), an extrusion airbag (252) and a transmission port (253); the expansion ring (251) is clamped on the top of the slow flow sleeve (211); the extrusion airbag (252) is connected to the rear side of the expansion ring (251); the surface of the extrusion airbag (252) is clamped with the inner side of the guide groove (212); and the transmission port (253) is opened on the rear side of the expansion ring (251).

9. The automobile charging terminal according to claim 8, characterized in that: The transmission component (26) includes a connecting sleeve (261), a guide port (262) and a storage airbag (263). The connecting sleeve (261) is clamped on the rear side of the expansion ring (251). The guide port (262) is opened on the inner side of the connecting sleeve (261). The front side of the guide port (262) is connected to the rear side of the transmission port (253). The storage airbag (263) is connected to the rear side of the connecting sleeve (261).

10. The automobile charging seat terminal according to claim 9, characterized in that: The drainage assembly (27) comprises a separation plate (271), a wall-breaking needle (272) and a drainage groove (273); the separation plate (271) is clamped on the rear side of the inner side of the storage airbag (263); the wall-breaking needle (272) is fixedly connected to the front side of the separation plate (271); and the drainage groove (273) is opened on the surface of the wall-breaking needle (272).

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