New energy automobile charging gun

Abstract

The invention relates to the technical field of automobile charging guns, in particular to a new energy automobile charging gun which comprises an outer frame, a trigger device is arranged on the outer frame, an insertion block is arranged in the outer frame and fixedly installed on the inner bottom wall of the outer frame, and five sets of cavities are formed in the middle of one end of the insertion block in a penetrating mode. Wherein three groups of cavities are located below the other two groups of cavities, the sealing cover is fixedly installed on the inner wall of the middle cavity of the three groups of cavities located below. According to the charging gun, through the arrangement of the heat dissipation mechanism, cooling liquid and chlorination liquid in the auxiliary heat dissipation assembly are matched with each other, and heat dissipation of the live wire connector and the null line connector can be rapidly and conveniently completed under the condition that normal work of the charging gun is not affected; therefore, the problems that the service life is affected and the charging efficiency of the automobile charging gun is reduced due to the fact that the temperature of the live wire connector and the zero wire connector is too high can be avoided, and the charging efficiency of the charging gun is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile charging guns, and in particular to a new energy automobile charging gun. Background Art

[0002] New energy vehicles refer to vehicles that use non-traditional fuels or new on-board power devices and integrate advanced power control and drive technologies. Compared with traditional fuel vehicles, these vehicles have lower exhaust emissions and are more environmentally friendly. The key issue of new energy vehicles lies in charging. The charging status will directly affect the quality of the vehicle, which makes the charging problem of new energy vehicles require special attention. The new energy vehicle charging gun is an important part of the new energy vehicle charging system. It is responsible for transmitting electrical energy from the power source to the battery of the electric vehicle.

[0003] When the existing new energy vehicle charging gun is in use, the live wire connector and the neutral wire connector inside the car charging gun need to flow a high-power current when charging. With today's charging technology, if the current passed through the live wire connector and the neutral wire connector is too large, the temperature of the live wire connector and the neutral wire connector themselves will be too high. If the live wire connector and the neutral wire connector cannot be fully dissipated, the charging power of the live wire connector and the neutral wire connector will be limited, thereby reducing the charging efficiency of the car charging gun for new energy vehicles. At the same time, the high temperature of the live wire connector and the neutral wire connector themselves can easily reduce the service life of the live wire connector and the neutral wire connector, thereby increasing the maintenance frequency and cost of the car charging gun. However, most of the current heat dissipation methods are for heat dissipation of the internal components of the car charging gun, and cannot accurately dissipate the heat of the live wire connector and the neutral wire connector, resulting in low heat dissipation efficiency and heat dissipation effect of the live wire connector and the neutral wire connector, and poor practicality. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the live wire connector and the neutral wire connector in the car charging gun cannot be accurately dissipated, thereby easily reducing the charging efficiency of the car charging gun and the service life of the live wire connector and the neutral wire connector, and to propose a new energy car charging gun.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A new energy vehicle charging gun includes an outer frame, a trigger device is arranged on the outer frame, and an insertion block is arranged inside the outer frame, the insertion block is fixedly mounted on the inner bottom wall of the outer frame, and five groups of cavities are penetrated at the middle position of one end of the insertion block, three groups of cavities are located below the other two groups of cavities, and also includes:

[0007] A sealing cover, a joint mechanism and a connecting mechanism, wherein the sealing cover is fixedly mounted on the inner wall of the middle cavity among the three groups of cavities located at the bottom, the joint mechanism includes a ground wire joint, and the ground wire joint is inserted through the sealing cover, and the two groups of cavities located on both sides of the ground wire joint are respectively provided with a live wire joint and a neutral wire joint, and the two groups of cavities located at the top are provided with two groups of judgment wire joints, and one end of the live wire joint, the ground wire joint, the neutral wire joint and the two groups of judgment wire joints are all connected to the connecting mechanism, and the connecting mechanism is arranged at one end of the insertion block facing the inner part of the outer frame, and is used to connect the wires to the joint mechanism;

[0008] A heat dissipation mechanism, the heat dissipation mechanism includes two groups of first heat pipes and two groups of second heat pipes, the two groups of first heat pipes are fixedly sleeved on the live wire connector and the neutral wire connector respectively, and the two groups of first heat pipes are loaded with coolant inside, the two groups of second heat pipes are fixedly sleeved on the two groups of judgment line connectors respectively, the two groups of first heat pipes and the two groups of second heat pipes are located in the corresponding cavities, the two groups of first heat pipes are installed with heat conducting pipes, and the two groups of first heat pipes are connected with the inside of the two groups of second heat pipes through the heat conducting pipes respectively, the connecting mechanism and the sealing cover jointly separate the corresponding cavities into liquid storage chambers, the liquid storage chambers are provided with chlorinated liquid, and the two groups of first heat pipes and the two groups of second heat pipes are jointly provided with auxiliary heat dissipation components for assisting the chlorinated liquid in reducing the surface temperature of the first heat pipes and the two groups of second heat pipes.

[0009] Preferably, the auxiliary heat dissipation component includes four groups of first capillary channels and four groups of second capillary channels, the four groups of first capillary channels are symmetrically arranged in pairs on the outer walls of the two groups of first heat pipes, the four groups of second capillary channels are symmetrically arranged in pairs on the outer walls of the two groups of second heat pipes, and the four groups of second capillary channels are fixedly connected with capillaries and first conduits, the four groups of second capillary channels are respectively connected with the liquid storage chamber through the four groups of capillaries, and the four groups of second capillary channels are respectively connected with the four groups of first capillary channels through the four groups of first conduits, the four groups of first capillary channels are fixedly connected with second conduits, and the four groups of first capillary channels are respectively connected with the liquid storage chamber through the four groups of second conduits.

[0010] Preferably, the connecting mechanism includes a terminal board, which is fixedly installed at one end of the insertion block and has five groups of wiring ports fixedly penetrated therethrough. The five groups of wiring ports are respectively connected to the live wire connector, the ground wire connector, the neutral wire connector and two groups of judgment wire connectors.

[0011] Preferably, two groups of heat-conducting rods are symmetrically inserted on the wiring board, one end of the two groups of heat-conducting rods is located in the liquid storage cavity, and the other end of the two groups of heat-conducting rods is located in the outer frame.

[0012] Preferably, a plurality of groups of heat dissipation holes are provided through the bottom end of the outer frame, and the plurality of groups of heat dissipation holes are located directly below one end of the heat conducting rod facing the inner part of the outer frame.

[0013] Preferably, the plurality of groups of heat dissipation hole covers are provided with waterproof covers, and the waterproof covers are fixedly mounted on the bottom end of the outer frame.

[0014] Preferably, the five groups of wiring ports are all made of rubber material.

[0015] Preferably, a protection mechanism is further included, and the protection mechanism includes five groups of protection frames, and the five groups of protection frames are fixedly inserted in the five groups of cavities inside the insertion block and fit with the inner walls of the five groups of cavities.

[0016] Preferably, waterproof rubber is provided at the connection places between the live wire joint, the neutral wire joint and the two groups of judgment wire joints and the two groups of first heat pipes and the two groups of second heat pipes.

[0017] Preferably, the trigger device is composed of a micro switch and a mechanical lock, a connecting seat is fixedly installed on the top of the insertion block, and the insertion block is connected to the mechanical lock in the trigger device through the connecting seat, an isolation frame is fixedly installed on the outside of the insertion block, and a through opening is opened on the isolation frame for the mechanical lock in the trigger device to pass through.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The present invention, through the setting of the heat dissipation mechanism, utilizes the mutual cooperation of the coolant and the chlorinated liquid in the auxiliary heat dissipation component, and can quickly and conveniently complete the heat dissipation of the live wire connector and the neutral wire connector without affecting the normal operation of the charging gun, thereby avoiding the problem of the live wire connector and the neutral wire connector being affected in their service life and reducing the charging efficiency of the automobile charging gun due to the excessive temperature, thereby improving the charging efficiency of the automobile charging gun.

[0020] 2. The present invention, through the provision of an auxiliary heat dissipation component, can take away the heat generated by the first heat pipe and the second heat pipe through the circulation of the chlorinated liquid, thereby assisting the first heat pipe and the second heat pipe in dissipating the heat of the live wire connector and the neutral wire connector, thereby improving the heat dissipation efficiency. In addition, since the circulation of the chlorinated liquid can be completed only by capillary effect and gravity without the aid of external force, the consumption of electricity or other energy is reduced, which in turn helps to reduce the operating cost of the charging gun. At the same time, since it does not rely on an external power source, it can effectively avoid the situation where the circulation is stopped due to mechanical failure or power outage, thereby enhancing the stability and reliability of the chlorinated liquid circulation cooling.

[0021] 3. The present invention can conduct heat from the liquid storage chamber and transmit it to the outside through the provision of heat-conducting rods and heat dissipation holes, thereby reducing the internal temperature of the liquid storage chamber, thereby improving the heat dissipation efficiency of the chlorinated liquid in the liquid storage chamber, and further enabling the chlorinated liquid to better reduce the surface temperature of the first heat pipe and the two groups of second heat pipes. In addition, through the provision of a waterproof cover, it is possible to prevent external factors from affecting the interior of the charging gun, thereby avoiding affecting the normal use of the charging gun.

[0022] 4. The present invention can enhance the waterproof effect of the connection between each joint and the heat pipe by setting the waterproof rubber, prevent external moisture from penetrating into each heat pipe, and further avoid affecting the heat dissipation of the live wire joint and the neutral wire joint. In addition, since the wiring port in the connecting mechanism is made of rubber material, and the rubber material has good waterproof performance, it can effectively prevent the penetration of moisture, thereby ensuring the safe operation of the charging gun and reducing the maintenance frequency and cost of the charging gun. At the same time, due to the weather resistance and waterproofness of the rubber material, the wiring port can be suitable for relatively humid or rainy environments, thereby expanding the application range of the charging gun and improving its applicability.

[0023] 5. The present invention can protect the insertion block by setting a protective mechanism, effectively reducing the wear of the insertion block after being inserted into the charging port of the electric vehicle, thereby increasing the service life of the insertion block, that is, increasing the service life of the charging gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall axial structure of a new energy vehicle charging gun proposed by the present invention.

[0025] Figure 2 This is a schematic diagram of the heat dissipation holes and waterproof cover structure of a new energy vehicle charging gun proposed by the present invention.

[0026] Figure 3 This is a schematic diagram of the trigger device and isolation frame structure of a new energy vehicle charging gun proposed by the present invention.

[0027] Figure 4 This is a schematic diagram of the wiring board and wiring port structure of a new energy vehicle charging gun proposed by the present invention.

[0028] Figure 5 This is a schematic diagram of the heat conducting rod and protective frame structure of a new energy vehicle charging gun proposed by the present invention.

[0029] Figure 6 This is a schematic diagram of the structure of the first heat pipe and the second heat pipe of a new energy vehicle charging gun proposed by the present invention.

[0030] Figure 7 This is a schematic diagram of the half-section structure of the outer frame and insertion block of a new energy vehicle charging gun proposed by the present invention.

[0031] In the figure: 1 outer frame, 2 heat dissipation holes, 3 waterproof cover, 4 trigger device, 5 isolation frame, 6 insertion block, 7 protection frame, 8 connection seat, 9 terminal board, 10 wiring port, 11 liquid storage chamber, 12 heat conducting rod, 13 live wire connector, 14 ground wire connector, 15 neutral wire connector, 16 judgment wire connector, 17 first heat pipe, 18 first capillary channel, 19 waterproof rubber, 20 second heat pipe, 21 second capillary channel, 22 capillary, 23 first conduit, 24 second conduit, 25 heat conducting pipe, 26 sealing cover. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figures 1 to 4 A new energy vehicle charging gun comprises an outer frame 1, on which a trigger device 4 is arranged, which is used to undertake the tasks of power-off protection and control signal transmission on the charging gun, and the trigger device 4 is composed of a micro switch and a mechanical lock. The trigger device 4 is a prior art, and its specific structural design is not repeated here. An insertion block 6 is arranged inside the outer frame 1, and the insertion block 6 is fixedly mounted on the inner bottom wall of the outer frame 1, and a connecting seat 8 is fixedly mounted on the top of the insertion block 6. The insertion block 6 is connected to the mechanical lock in the trigger device 4 through the connecting seat 8, and an isolation frame 5 is fixedly mounted on the outer side of the insertion block 6, and a through opening is opened on the isolation frame 5 for the mechanical lock in the trigger device 4 to pass through. Five groups of cavities are penetrated at the middle position of one end of the insertion block 6, and a joint mechanism is arranged in the five groups of cavities, wherein three groups of cavities are located below the other two groups of cavities, and a sealing cover 26 is fixedly mounted on the inner wall of the middle cavity of the three groups of cavities located below, and a connecting mechanism is arranged at one end of the insertion block 6 facing the inside of the outer frame 1, which is used to connect the wire to the joint mechanism.

[0034] Reference Figures 1 to 7The connector mechanism includes a ground connector 14, which is inserted through the sealing cover 26. The two groups of cavities on both sides of the ground connector 14 are respectively provided with a live connector 13 and a neutral connector 15. The two groups of cavities located above are provided with two groups of judgment wire connectors 16. The judgment wire connector 16 is used to judge whether the charging gun inserted into the charging port of the electric vehicle is connected normally. The live connector 13, the ground connector 14, the neutral connector 15 and one end of the two groups of judgment wire connectors 16 are all connected to the connecting mechanism. The connecting mechanism includes a wiring board 9, which is fixedly mounted on one end of the insertion block 6, and five groups of wiring ports 10 are fixedly penetrated on the wiring board 9. The five groups of wiring ports 10 are respectively connected to the live connector 13, the ground connector 14, the neutral connector 15 and the two groups of judgment wire connectors 16, and the five groups of wiring ports 10 are made of rubber material. Since the rubber material has good waterproof performance, when the wiring port 10 connects the wires to each connector When making a connection, it can effectively prevent the penetration of moisture, reduce the risk of circuit short circuit caused by moisture, ensure the safe operation of the charging gun, and at the same time reduce failures and damages caused by moisture, reduce the maintenance frequency and cost of the charging gun. In addition, the weather resistance and waterproofness of the rubber material enable the wiring port 10 to be suitable for relatively humid or rainy environments, thereby expanding the application range of the charging gun and improving its applicability. A protective mechanism is provided on the insertion block 6 to reduce the wear and tear of the insertion block 6 after it is inserted into the charging port of the tram. The protective mechanism includes five groups of protective frames 7, and the five groups of protective frames 7 are fixedly inserted in the five groups of cavities inside the insertion block 6 and fit with the inner walls of the five groups of cavities. Since the protective frame 7 fits tightly in the cavity inside the insertion block 6, it forms a physical barrier, which effectively reduces the wear and tear of the insertion block 6 after it is inserted into the charging port of the tram and improves the service life of the insertion block 6.

[0035] Reference Figures 5 to 7The live wire connector 13, the neutral wire connector 15 and the two groups of judgment wire connectors 16 are provided with a heat dissipation mechanism for dissipating heat from the live wire connector 13 and the neutral wire connector 15. The heat dissipation mechanism includes two groups of first heat pipes 17 and two groups of second heat pipes 20. The two groups of first heat pipes 17 are respectively fixedly sleeved on the live wire connector 13 and the neutral wire connector 15, and the two groups of first heat pipes 17 are loaded with coolant inside. The two groups of second heat pipes 20 are respectively fixedly sleeved on the two groups of judgment wire connectors 16. The two groups of first heat pipes 17 and the two groups of second heat pipes 20 are both located in the corresponding cavities. The two groups of first heat pipes 17 are both equipped with guides. The two groups of first heat pipes 17 are connected to the inside of the two groups of second heat pipes 20 through the heat pipes 25, and the terminal board 9 and the sealing cover 26 jointly separate the corresponding cavity into a liquid storage chamber 11, and the liquid storage chamber 11 is provided with a chlorinated liquid. The two groups of first heat pipes 17 and the two groups of second heat pipes 20 are jointly provided with an auxiliary heat dissipation component, which is used to assist the chlorinated liquid to reduce the surface temperature of the first heat pipes 17 and the two groups of second heat pipes 20, so that the auxiliary chlorinated liquid assists the coolant inside the first heat pipe 17 to cool the live wire joint 13 and the neutral wire joint 15 and assists the second heat pipe 20 to cool.

[0036] Reference Figures 5 to 7 The auxiliary heat dissipation component includes four groups of first capillary channels 18 and four groups of second capillary channels 21. The four groups of first capillary channels 18 are symmetrically arranged on the outer walls of the two groups of first heat pipes 17, and the four groups of second capillary channels 21 are symmetrically arranged on the outer walls of the two groups of second heat pipes 20. The four groups of second capillary channels 21 are fixedly connected with capillaries 22 and first conduits 23. The four groups of second capillary channels 21 are connected with the liquid storage chamber 11 through the four groups of capillary channels 22, and the four groups of second capillary channels 21 are connected with the four groups of first capillary channels 18 through the four groups of first conduits 23. The four groups of first capillary channels 18 are fixedly connected with second conduits 24, and the four groups of first capillary channels 18 are connected with the liquid storage chamber 11 through the four groups of second conduits 24.

[0037] During the charging process, the temperature of the live wire connector 13 and the neutral wire connector 15 begins to rise. Since the judgment wire connector 16 and the ground wire connector 14 do not play a major role in the flow of current, the temperature of the judgment wire connector 16 and the ground wire connector 14 will basically not rise. The heat generated by the live wire connector 13 and the neutral wire connector 15 is transferred to the interior of the first heat pipe 17. The coolant in the first heat pipe 17 evaporates due to the heat and enters the second heat pipe 20 through the heat conduction pipe 25. Since the temperature of the judgment wire connector 16 will not rise, the temperature in the second heat pipe 20 is relatively low. After the gaseous coolant enters the second heat pipe 20 with a lower temperature, it releases heat and liquefies, and flows back into the first heat pipe 17 to transfer heat, thereby reducing the temperature of the live wire connector 13 and the neutral wire connector 15. Since the surface tension of the chlorinated liquid is very strong, its capillary effect in the capillary tube 22 is very strong, and the chlorinated liquid arranged in the liquid storage chamber 11 chlorinates The chlorinated liquid enters the second capillary channel 21 through the capillary 22, and because the chlorinated liquid has a strong thermal conductivity, the chlorinated liquid entering the second capillary channel 21 spirally swirls on the surface of the second heat pipe 20, which will assist the second heat pipe 20 to cool down. Then, the chlorinated liquid enters the first capillary channel 18 through the first conduit 23 under the action of gravity, takes away the temperature of the surface of the first heat pipe 17, and assists the coolant inside it to cool down the live wire connector 13 and the neutral wire connector 15. Finally, the chlorinated liquid returns to the liquid storage chamber 11 through the second conduit 24 under the action of gravity, thereby completing the heat dissipation of the live wire connector 13 and the neutral wire connector 15, thereby avoiding the problem of affecting the service life of the live wire connector 13 and the neutral wire connector 15 due to excessive temperature and reducing the charging efficiency of the automobile charging gun. In addition, because the chlorinated liquid is not conductive, the above-mentioned entire process will not affect the normal operation of the charging gun.

[0038] In addition, from the above description, it can be seen that the chlorinated liquid can complete the circulation of the liquid only through the capillary effect and gravity without the aid of external force, taking away the heat generated by the first heat pipe 17 and the second heat pipe 20, reducing the consumption of electricity or other energy, and thus helping to reduce the operating cost of the charging gun. At the same time, since it does not rely on an external power source, it can effectively avoid the situation where the circulation is stopped due to mechanical failure or power outage, thereby enhancing the stability and reliability of the chlorinated liquid circulation cooling, and thus improving the heat dissipation efficiency.

[0039] Reference Figures 1 to 7, two groups of heat-conducting rods 12 are symmetrically inserted on the wiring board 9, one end of the two groups of heat-conducting rods 12 is located in the liquid storage cavity 11, and the other end of the two groups of heat-conducting rods 12 is located in the outer frame 1, and the heat-conducting rods 12 are used to export the temperature in the liquid storage cavity 11, reduce the internal temperature of the liquid storage cavity 11, thereby improving the heat dissipation efficiency of the chlorinated liquid in the liquid storage cavity 11, and then the chlorinated liquid can better reduce the surface temperature of the first heat pipe 17 and the two groups of second heat pipes 20. A plurality of heat dissipation holes 2 are arranged through the bottom end of the outer frame 1, and the plurality of heat dissipation holes 2 are located directly below one end of the heat-conducting rods 12 facing the inside of the outer frame 1, and are used to transmit the temperature exported by the heat-conducting rods 12 to the outside world, and a waterproof cover 3 is provided on the outer cover of the plurality of heat dissipation holes 2, and the waterproof cover 3 is fixedly mounted on the bottom end of the outer frame 1. Protection can significantly reduce the failure rate of the charging gun caused by moisture intrusion, improve the reliability and stability of the charging gun, and avoid affecting the use of the charging gun. In addition to being waterproof, the waterproof cover 3 can also prevent dust and other tiny particles from entering the interior of the charging gun through the heat dissipation holes 2 to a certain extent, thereby avoiding dust accumulation inside the charging gun and affecting the heat dissipation effect inside the charging gun. Waterproof rubber 19 is provided at the connection between the live wire connector 13, the neutral wire connector 15 and the two groups of judgment wire connectors 16 and the two groups of first heat pipes 17 and the two groups of second heat pipes 20. The waterproof rubber 19 is provided to enhance the waterproof effect of the connection between each connector and the heat pipe, and prevent external moisture from penetrating into each heat pipe, thereby avoiding affecting the heat dissipation of the live wire connector 13 and the neutral wire connector 15.

[0040] In the present invention, the live wire connector 13 and the neutral wire connector 15 of the car charging gun need to flow high-power current during charging. With current charging technology, if the current flowing into the live wire connector 13 and the neutral wire connector 15 is too large, it will cause the temperature to be too high, which may limit the charging power. Therefore, heat dissipation of the live wire connector 13 and the neutral wire connector 15 is particularly important.

[0041] In this device, the liquid storage chamber 11 needs to be filled with fluoride liquid. Fluoride liquid is not only non-conductive but also has strong thermal conductivity and surface tension, and is very suitable as a thermal conductive material inside the charging head.

[0042] Press the trigger device 4 and insert the insertion block 6 into the charging port of the tram. The protective frame 7 can protect the insertion block 6, effectively reducing the wear of the insertion block 6 after being inserted into the charging port of the tram, and improving the service life of the insertion block 6. After insertion, release the trigger device 4 and determine whether the wire connector 16 is connected normally. After the connection is normal, charging can be started.

[0043] During the charging process, the temperature of the live wire connector 13 and the neutral wire connector 15 begins to rise. Since the judgment wire connector 16 and the ground wire connector 14 do not play a major role in the flow of current, the temperature of the judgment wire connector 16 and the ground wire connector 14 will basically not rise. The heat generated by the live wire connector 13 and the neutral wire connector 15 is transferred to the interior of the first heat pipe 17. The coolant in the first heat pipe 17 evaporates due to the heat and enters the second heat pipe 20 through the heat conduction pipe 25. Since the temperature of the judgment wire connector 16 will not rise, the temperature in the second heat pipe 20 is relatively low. After the gaseous coolant enters the second heat pipe 20 with a lower temperature, it releases heat and liquefies, and then flows back into the first heat pipe 17 to transfer heat, thereby reducing the temperature of the live wire connector 13 and the neutral wire connector 15.

[0044] The ground wire connector 14 is installed in the liquid storage chamber 11, and the liquid storage chamber 11 is filled with chlorinated liquid. Since the surface tension of the chlorinated liquid is very strong, the capillary effect in the capillary 22 is very strong. The chlorinated liquid enters the second capillary channel 21 through the capillary 22. Since the thermal conductivity of the chlorinated liquid is also very strong, the chlorinated liquid entering the second capillary channel 21 spirally swirls on the surface of the second heat pipe 20, which will assist the second heat pipe 20 in cooling down. After that, the chlorinated liquid enters the first capillary channel 18 through the first conduit 23 under the action of gravity, takes away the temperature of the surface of the first heat pipe 17, and assists the coolant inside it to cool down the live wire connector 13 and the neutral wire connector 15. Finally, the chlorinated liquid returns to the liquid storage chamber 11 through the second conduit 24 under the action of gravity. Since the chlorinated liquid is not conductive, the above-mentioned whole process will not affect the normal operation of the charging gun.

[0045] In this way, under the action of capillary effect and gravity, the chlorinated liquid can complete the circulation of the liquid without the help of external force, and take away the heat generated by the first heat pipe 17 and the second heat pipe 20. A heat conducting rod 12 is also inserted into the liquid storage chamber 11, and the heat conducting rod 12 conducts the temperature in the liquid storage chamber 11. The grounding connector 14 can also assist in conducting away the heat. One end of the heat conducting rod 12 passing through the terminal block 9 is provided with a heat dissipation hole 2 at the bottom of the outer frame 1 facing it, which can finally transfer the temperature to the external environment, and the heat dissipation hole 2 is located at the bottom of the outer frame 1, and is surrounded by a waterproof cover 3 to prevent external factors from affecting the inside of the charging gun, such as external moisture or dust, thereby avoiding affecting the normal use of the charging gun.

[0046] Since the wiring port 10 is made of rubber material, when the wiring port 10 connects the wires to the various connectors, it can effectively play a waterproof role, reduce the risk of circuit short circuit caused by moisture, ensure the safe operation of the charging gun, and reduce failures and damages caused by moisture, reducing the maintenance frequency and cost of the charging gun. In addition, the weather resistance and waterproofness of the rubber material enable the wiring port 10 to be suitable for relatively humid or rainy environments, thereby expanding the application range of the charging gun and improving its applicability. In addition, since waterproof rubber 19 is provided at the connection between the live wire connector 13, the neutral wire connector 15 and the two groups of judgment wire connectors 16 and the two groups of first heat pipes 17 and the two groups of second heat pipes 20, the waterproof effect of the connection between each connector and the heat pipe can be enhanced, preventing external moisture from penetrating into each heat pipe, thereby avoiding affecting the heat dissipation of the live wire connector 13 and the neutral wire connector 15.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new energy vehicle charging gun, comprising an outer frame (1), a trigger device (4) being provided on the outer frame (1), and an insert block (6) being provided inside the outer frame (1), the insert block (6) being fixedly mounted on the inner bottom wall of the outer frame (1), and five groups of cavities being provided through the middle position of one end of the insert block (6), wherein three groups of cavities are located below the other two groups of cavities, and characterized in that: Also includes: A sealing cover (26), a joint mechanism and a connecting mechanism, wherein the sealing cover (26) is fixedly mounted on the inner wall of the middle cavity among the three groups of cavities located below, the joint mechanism includes a ground wire joint (14), the ground wire joint (14) is inserted through the sealing cover (26), a live wire joint (13) and a neutral wire joint (15) are respectively provided in the two groups of cavities located on both sides of the ground wire joint (14), and two groups of judgment wire joints (16) are provided in the two groups of cavities located above, one end of the live wire joint (13), the ground wire joint (14), the neutral wire joint (15) and the two groups of judgment wire joints (16) are all connected to the connecting mechanism, and the connecting mechanism is provided at one end of the insertion block (6) facing the inside of the outer frame (1) for connecting the wires to the joint mechanism; The heat dissipation mechanism comprises two groups of first heat pipes (17) and two groups of second heat pipes (20), the two groups of first heat pipes (17) are respectively fixedly sleeved on the live wire joint (13) and the neutral wire joint (15), and the two groups of first heat pipes (17) are loaded with coolant inside, the two groups of second heat pipes (20) are respectively fixedly sleeved on the two groups of judgment wire joints (16), the two groups of first heat pipes (17) and the two groups of second heat pipes (20) are both located in the corresponding cavities, and the two groups of first heat pipes (17) are respectively fixedly sleeved on the two groups of judgment wire joints (16). Both are equipped with heat conducting pipes (25), and both groups of first heat pipes (17) are connected to the interior of the two groups of second heat pipes (20) through the heat conducting pipes (25). The connecting mechanism and the sealing cover (26) jointly separate the corresponding cavities into a liquid storage chamber (11). Chloride liquid is provided inside the liquid storage chamber (11). The two groups of first heat pipes (17) and the two groups of second heat pipes (20) are jointly provided with an auxiliary heat dissipation component for assisting the chloride liquid in reducing the surface temperature of the first heat pipes (17) and the two groups of second heat pipes (20).

2. A new energy vehicle charging gun according to claim 1, characterized in that: The auxiliary heat dissipation component comprises four groups of first capillary channels (18) and four groups of second capillary channels (21). The four groups of first capillary channels (18) are symmetrically arranged on the outer walls of the two groups of first heat pipes (17), and the four groups of second capillary channels (21) are symmetrically arranged on the outer walls of the two groups of second heat pipes (20). The four groups of second capillary channels (21) are fixedly connected with capillary tubes (22) and first conduits (23). The four groups of second capillary channels (21) are respectively connected to the liquid storage chamber (11) through the four groups of capillary tubes (22), and the four groups of second capillary channels (21) are respectively connected to the four groups of first capillary channels (18) through the four groups of first conduits (23). The four groups of first capillary channels (18) are respectively fixedly connected with second conduits (24), and the four groups of first capillary channels (18) are respectively connected to the liquid storage chamber (11) through the four groups of second conduits (24).

3. A new energy vehicle charging gun according to claim 1, characterized in that: The connection mechanism comprises a wiring board (9), the wiring board (9) being fixedly mounted on one end of the insertion block (6), and having five groups of wiring ports (10) fixedly penetrating the wiring board (9), the five groups of wiring ports (10) being respectively connected to a live wire connector (13), a ground wire connector (14), a neutral wire connector (15), and two groups of judgment wire connectors (16).

4. A new energy vehicle charging gun according to claim 3, characterized in that: Two groups of heat-conducting rods (12) are symmetrically inserted on the wiring board (9), one end of the two groups of heat-conducting rods (12) is located in the liquid storage cavity (11), and the other end of the two groups of heat-conducting rods (12) is located in the outer frame (1).

5. A new energy vehicle charging gun according to claim 4, characterized in that: The bottom end of the outer frame (1) is penetrated by a plurality of heat dissipation holes (2), and the plurality of heat dissipation holes (2) are located directly below one end of the heat conducting rod (12) facing the inside of the outer frame (1).

6. A new energy vehicle charging gun according to claim 5, characterized in that: The outer covers of the multiple groups of heat dissipation holes (2) are provided with waterproof covers (3), and the waterproof covers (3) are fixedly mounted on the bottom end of the outer frame (1).

7. A new energy vehicle charging gun according to claim 3, characterized in that: The five groups of wiring ports (10) are all made of rubber material.

8. The new energy vehicle charging gun according to claim 1, characterized in that: It also includes a protection mechanism, which includes five groups of protection frames (7). The five groups of protection frames (7) are fixedly inserted into the five groups of cavities inside the insertion block (6) and fit with the inner walls of the five groups of cavities.

9. The new energy vehicle charging gun according to claim 1, characterized in that: Waterproof rubber (19) is provided at the connection points between the live wire connector (13), the neutral wire connector (15), the two groups of judgment wire connectors (16), the two groups of first heat pipes (17), and the two groups of second heat pipes (20).

10. A new energy vehicle charging gun according to claim 1, characterized in that: The trigger device (4) is composed of a micro switch and a mechanical lock. A connecting seat (8) is fixedly installed on the top of the insertion block (6), and the insertion block (6) is connected to the mechanical lock in the trigger device (4) through the connecting seat (8). An isolation frame (5) is fixedly installed on the outside of the insertion block (6), and a through hole is opened on the isolation frame (5) for the mechanical lock in the trigger device (4) to pass through.

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