Waterproof lightning-protection charging device for new energy electric vehicle

Abstract

The invention discloses a waterproof lightning-protection charging device for a new energy electric vehicle, and relates to the technical field of charging devices, the waterproof lightning-protection charging device comprises a charging pile, and further comprises a lightning-protection system connected with the charging pile; a cable is electrically connected between the charging gun and the interior of the charging pile, the middle of the cable is slidably sleeved with a rotating sleeve, a ball head of the rotating sleeve is connected with a sliding frame, and the sliding frame is slidably connected to a shell of the charging pile; and the waterproof folding cover is connected to the outer side of the charging gun. The waterproof folding cover is arranged, the conical folding cover and the circular folding cover are combined, the charging gun is tightly wrapped when not used, dust is prevented from entering the charging gun, and rainwater can be effectively prevented from permeating the charging gun when it rains; the folding cover can be magnetically attracted to the periphery of the charging port of the electric vehicle after being stretched, stability is enhanced, a gap between the conical folding cover and the shell of the electric vehicle is filled with a rubber ring made of water-absorbing expansion rubber, a waterproof sealing layer is formed, and the waterproof performance is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of charging devices, and in particular to a waterproof lightning protection charging device for a new energy electric vehicle. Background Art

[0002] Charging piles are key equipment for providing electric energy for electric vehicles. They are usually installed outdoors and use doors or shields to block the intrusion of rain and dust, avoid poor contact between the charging gun and the charging interface, and improve the waterproof effect. The cables are wound on traditional reels to prevent them from being entangled on the outside of the charging pile during use, reducing the risk of users tripping over long cables. A lightning arrester is installed at the power supply end to provide lightning protection for the power supply end.

[0003] In the existing technology, the power cord is pulled down to drive the twisting device to rotate, and the opening and closing of the compartment door is synchronously controlled to realize automatic winding of the power cord and sealing of the storage compartment, thereby reducing cable wear and rainwater intrusion. In this method, the scenarios of charging gun storage, charging, and emergency power-off and unplugging cannot be covered, which reduces the waterproof and protective effect of the charging gun. In addition, the cable is prone to twisting during use and rubs against each other during winding and releasing, which reduces the service life of the cable. A buffer pad is used to buffer the collision force, and a top shield plate is used to divert rainwater to reduce direct damage to the charging pile caused by collision and rainwater. In this method, the charging gun cannot be urgently unplugged when the charging gun starts to burn due to water ingress or lightning strike. There is a lack of buffering protection for the pulled-out charging gun, which can easily cause the charging gun to fall and be damaged. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing technology cannot cover the scenarios of charging gun storage, charging, and emergency power-off unplugging, and reduces the waterproof and protective effect of the charging gun, and proposes a waterproof lightning protection charging device for new energy electric vehicles.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a waterproof lightning protection charging device for a new energy electric vehicle, comprising a charging pile, and further comprising:

[0006] Lightning protection system, the lightning protection system is connected to the charging pile;

[0007] A charging gun, wherein a cable is electrically connected between the charging gun and the interior of the charging pile, a rotating sleeve is slidably sleeved in the middle of the cable, a sliding frame is connected to the ball head of the rotating sleeve, and the sliding frame is slidably connected to the housing of the charging pile;

[0008] A waterproof folding cover is connected to the outside of the charging gun and cooperates with the car shell to seal the charging head of the charging gun;

[0009] The winding assembly includes multiple cylindrical blocks connected to the inside of the charging pile. Multiple retractable curved plates are connected to the outside of the cylindrical blocks. The cables are wound around the curved plates on the multiple cylindrical blocks.

[0010] The emergency power-off mechanism includes a winding device and a protective component connected to the inside of the charging pile. Multiple traction ropes are fixedly connected between the winding end of the winding device and the charging gun. The protective component includes a buffer block that can extend from the charging pile. The buffer block is located below the sliding frame.

[0011] In the above-mentioned waterproof lightning protection charging device for new energy electric vehicles, the bottom of the charging pile is the base, and the lightning protection system includes a grounding device installed inside the base, a power supply lightning arrester installed on the charging gun, and a lightning rod installed at a high place near the charging pile.

[0012] In the above-mentioned new energy electric vehicle waterproof lightning protection charging device, the waterproof folding cover includes a conical folding cover and a circular folding cover fixedly connected to the outside of the charging gun. The circular folding cover is gap-fitted with the charging gun. The conical folding cover is located on the outside of the circular folding cover, and the end with the larger opening faces the charging head of the charging gun. The inner side of the end of the conical folding cover facing the charging head is fixedly connected with a rubber ring and a magnetic ring. The rubber ring is made of water-absorbing and expanding rubber. The magnetic ring is magnetically matched with the car body. A gun discharge port is opened on the charging pile, and the charging gun is snap-fitted with the gun discharge port. An arc-shaped cover is fixedly connected to the top of the gun discharge port, and the charging gun is located inside the arc-shaped cover.

[0013] In the above-mentioned new energy electric vehicle waterproof lightning protection charging device, a connecting window is opened on the shell of the charging pile, the top of the connecting window is fixedly connected to the dustproof shell, and the bottom is slidably connected to the sliding shell. The sliding shell and the dustproof shell cooperate to seal the connecting window, and the sliding frame is fixedly connected to the sliding shell. The sliding frame is fixedly connected to the rubber pad, which rests on the outside of the sliding shell and the charging pile shell, and seals the connection between the rotating sleeve and the sliding frame.

[0014] In the above-mentioned waterproof lightning protection charging device for new energy electric vehicles, one end of the rotating sleeve extending into the interior of the charging pile is connected to an anti-torsion component, and the anti-torsion component includes an annular sleeve fixedly connected to the rotating sleeve, and the inner side of the annular sleeve is rotatably connected to the limiting sleeve. The cable passes through the interior of the limiting sleeve, and the inner side of the limiting sleeve is provided with multiple limiting grooves along the axial direction. Two rubber blocks are slidably connected to the interior of the limiting groove, and a second spring is fixedly connected between the two rubber blocks. The rubber block extends out of the limiting groove and rests against the outside of the cable.

[0015] In the above-mentioned new energy electric vehicle waterproof lightning protection charging device, an annular groove is opened on the inner side of the annular sleeve, and multiple first mounting plates are fixedly connected inside the annular groove. Multiple second mounting plates are fixedly connected to the outer side of the limit sleeve. The multiple second mounting plates correspond one-to-one to the multiple first mounting plates, and multiple first springs are fixedly connected between adjacent first mounting plates and second mounting plates.

[0016] In the above-mentioned new energy electric vehicle waterproof lightning protection charging device, an installation room is provided inside the charging pile, the winding assembly is located inside the installation room, the middle part of the cable passes through the installation room, and multiple motors are installed at the bottom of the installation room. The output end of the motor is fixedly connected to a screw rod. Among the multiple cylindrical blocks, some of the cylindrical blocks located above are fixedly connected to the inner wall of the installation room, and some of the cylindrical blocks located below are correspondingly threadedly connected to the multiple screw rods and slidably connected to the inner wall of the installation room. Multiple second electric telescopic rods are installed on the outside of the cylindrical blocks, and multiple arc plates are fixedly connected to the output ends of the multiple second electric telescopic rods one by one.

[0017] In the above-mentioned new energy electric vehicle waterproof lightning protection charging device, the protection component includes a first electric telescopic rod installed inside the installation chamber, the output end of the first electric telescopic rod is fixedly connected to a buffer pad, and both sides of the buffer pad are connected to slidable limit plates. The buffer pad and the two limit plates form a buffer block, and a buffer groove for the buffer block to extend is opened on the side wall of the installation chamber, and a cover plate is rotatably connected to the buffer groove.

[0018] In the above-mentioned new energy electric vehicle waterproof lightning protection charging device, the emergency power-off mechanism also includes a pulling assembly, which includes two spring telescopic rods installed inside the installation chamber. The bottom ends of the two spring telescopic rods are fixedly connected to the same limit rod and rotatably connected to the same one-way rotating rod. The limit rod is located above the one-way rotating rod. The limit rod, the one-way rotating rod and the two spring telescopic rods form a pulling hole. The cables and multiple traction ropes between the winding assembly and the rotating sleeve all pass through the pulling hole. A magnetic block is installed at the bottom end of the spring telescopic rod, and an electromagnet is installed on a cylindrical block near the pulling hole. The electromagnet and the magnetic block are magnetically matched.

[0019] In the above-mentioned waterproof lightning protection charging device for new energy electric vehicles, one end of the curved plate is fixedly connected to a baffle, and the baffle, the curved plate and the inner wall of the installation chamber form a limit groove. The bottom of the limit groove is connected to a groove, which is opened on the outside of the curved plate. The groove slides with the cable, and the electromagnet is installed on a baffle.

[0020] Compared with the existing technology, the advantages of the present invention are:

[0021] 1. The present invention provides a waterproof folding cover, which adopts a combination of a conical folding cover and a circular folding cover. When the charging gun is not in use, it tightly wraps the charging gun to prevent dust from entering and effectively blocks rainwater from seeping in during rain. The folding cover is easy to operate and does not require complicated operations. After stretching, the folding cover can be magnetically attracted to the surrounding areas of the electric vehicle charging port to enhance stability. The rubber ring made of water-absorbing and expanding rubber fills the gap between the conical folding cover and the electric vehicle shell to form a waterproof sealing layer, further improving the waterproof performance. At the same time, the unfolded folding cover can protect the charging gun when it contacts the ground, and cooperate with the protective component to stably position the charging gun when the power is cut off and the charging gun is pulled out in an emergency, preventing the charging gun from falling or colliding and damaging other equipment. It covers the scenarios of charging gun storage, charging, and emergency power-off and pull-out, thereby improving the waterproof and fall protection effects of the charging gun.

[0022] 2. The present invention sets an anti-twisting component, and through the combination of an annular sleeve, a limit sleeve, a rubber block and a spring, the resistance encountered by the cable when twisting is greater than the resistance of its axial movement, and allows the cable to twist at a small angle and automatically rebound, effectively preventing the cable from being damaged by rigid torsion; by setting a winding component, a retractable arc plate and a movable cylindrical block are used to form the winding component, and the winding length of the cable can be adjusted by the second electric telescopic rod and motor control. Compared with traditional winding machines, it can avoid mutual friction and excessive bending of the cables themselves, reduce heat generation and cable deformation, and protect the cables.

[0023] 3. The present invention is equipped with an emergency power-off mechanism. When sparks or high temperature hazards are detected in the charging gun or cable, the system will first automatically cut off the power supply, and then pull the traction rope through the winding device to unplug the charging gun from the car charging port to avoid the risk of manual contact; the pulled-out charging gun will be caught by the extended buffer block, and the spring telescopic rod will contract in a controlled manner to quickly retract the cable to prevent the charging gun from falling to the ground and being damaged; the entire process does not require human intervention, forming a closed loop from power off to recovery, maximizing the safety of personnel and equipment, and is smarter, more timely and safer than the traditional manual power off method. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a waterproof lightning protection charging device for new energy electric vehicles proposed by the present invention;

[0025] Figure 2 This is a full-section side view of a waterproof lightning protection charging device for new energy electric vehicles proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the full cross-section structure of the installation room of a waterproof lightning protection charging device for new energy electric vehicles proposed by the present invention;

[0027] Figure 4 for Figure 3 A detailed enlarged view of point A;

[0028] Figure 5 This is a schematic diagram of the full cross-section structure of a rotating sleeve of a waterproof lightning protection charging device for a new energy electric vehicle proposed by the present invention;

[0029] Figure 6 This is a structural diagram of the cylindrical block and curved plate of a waterproof lightning protection charging device for new energy electric vehicles proposed by the present invention;

[0030] Figure 7 This is a structural schematic diagram of a sliding housing of a waterproof lightning protection charging device for a new energy electric vehicle proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of a pull-up component of a waterproof lightning protection charging device for a new energy electric vehicle proposed by the present invention;

[0032] Figure 9 This is a cross-sectional view of an annular sleeve of a waterproof lightning protection charging device for a new energy electric vehicle proposed by the present invention;

[0033] Figure 10 This is a schematic diagram of the protective component structure of a waterproof lightning protection charging device for a new energy electric vehicle proposed by the present invention;

[0034] Figure 11 This is a structural schematic diagram of a new energy electric vehicle waterproof lightning protection charging device proposed by the present invention in a folded state of a conical folding cover;

[0035] Figure 12 This is a structural schematic diagram of the expanded conical folding cover of a waterproof lightning protection charging device for a new energy electric vehicle proposed by the present invention.

[0036] In the figure: 1. Base; 2. Charging pile; 3. Dustproof shell; 4. Arc cover; 5. Conical folding cover; 6. Charging gun; 7. Cable; 8. Cover; 9. Motor; 10. Traction rope; 11. Winding device; 12. Screw; 13. First electric telescopic rod; 14. Spring telescopic rod; 15. Cylindrical block; 16. Annular sleeve; 17. Rotating sleeve; 18. Rubber pad; 19. Limit rod; 20. One-way rotating rod; 21. Magnetic block; 22. Arc plate; 23. Baffle; 24. Sliding frame; 25. Electromagnet; 26. Second electric telescopic rod; 27. Sliding shell; 28. Limit sleeve; 29. ​​First spring; 30. First mounting plate; 31. Second mounting plate; 32. Second spring; 33. Rubber block; 34. Buffer pad; 35. Limit plate; 36. Circular folding cover; 37. Rubber ring; 38. Magnetic ring. DETAILED DESCRIPTION

[0037] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0038] Reference Figure 1-Figure 5 、 Figure 7 、 Figure 11 and Figure 12 A waterproof lightning protection charging device for a new energy electric vehicle includes a charging pile 2 and further includes:

[0039] Lightning protection system, the lightning protection system is connected to the charging pile 2.

[0040] The bottom of the charging pile 2 is the base 1. The lightning protection system includes a grounding device installed inside the base 1, a power supply lightning arrester installed on the charging gun 6, and a lightning rod installed at a high place near the charging pile 2.

[0041] The grounding equipment, power supply lightning arrester and lightning rod all use existing technologies. The grounding equipment ensures that the shell and base 1 of the charging pile 2 have good grounding performance. The power supply lightning arrester prevents lightning overvoltage and induced overvoltage from damaging the electrical components of the charging pile 2 and the electric vehicle, thereby ensuring the safety of the charging equipment and vehicles. The lightning rod guides lightning into the ground to protect surrounding objects from lightning damage.

[0042] The charging gun 6 is electrically connected to the inside of the charging pile 2 by a cable 7. A rotating sleeve 17 is slidably sleeved on the middle part of the cable 7. The ball head of the rotating sleeve 17 is connected to a sliding frame 24. The sliding frame 24 is slidably connected to the shell of the charging pile 2.

[0043] The waterproof folding cover is connected to the outside of the charging gun 6 and cooperates with the car body to seal the charging head of the charging gun 6.

[0044] The waterproof folding cover includes a conical folding cover 5 and a circular folding cover 36 fixedly connected to the outside of the charging gun 6. The circular folding cover 36 is gap-fitted with the charging gun 6. The conical folding cover 5 is located on the outside of the circular folding cover 36, and the end with the larger opening faces the charging head of the charging gun 6. A rubber ring 37 and a magnetic ring 38 are fixedly connected to the inner side of the end of the conical folding cover 5 facing the charging head. The rubber ring 37 is made of water-absorbing and expanding rubber, and the magnetic ring 38 is magnetically matched with the car body. A gun discharge port is provided on the charging pile 2, and the charging gun 6 is snap-fitted with the gun discharge port. An arc-shaped cover 4 is fixedly connected to the top of the gun discharge port, and the charging gun 6 is located inside the arc-shaped cover 4.

[0045] When the charging gun 6 is not in use, it is snapped into place at the gun port, and the conical folding cover 5 and the circular folding cover 36 are folded against the gun port to seal and protect the charging gun 6, effectively avoiding the influence of moisture and dust; when in use, the charging gun 6 is inserted into the charging port of the electric vehicle, and the circular folding cover 36 and the conical folding cover 5 are stretched so that the folding cover is magnetically attracted to the surrounding of the charging port of the electric vehicle, sealing and protecting the charging gun 6 and the charging port, effectively avoiding the influence of moisture and dust.

[0046] A communication window is provided on the shell of the charging pile 2. The top of the communication window is fixedly connected to the dustproof shell 3, and the bottom is slidably connected to the sliding shell 27. The sliding shell 27 cooperates with the dustproof shell 3 to seal the communication window, and the sliding frame 24 is fixedly connected to the sliding shell 27.

[0047] Dust shields are provided on both sides of the sliding shell 27. When the rotating sleeve 17 drives the sliding frame 24 to move upward, the sliding frame 24 will also drive the sliding shell 27 to move upward. After the rotating sleeve 17 returns to its original position, the sliding shell 27 falls down. While not hindering the movement of the rotating sleeve 17, the vertical length of the sliding shell 27 is long, which can always seal the connecting window, and can effectively prevent dust from entering the interior of the charging pile 2 through the connecting window.

[0048] A rubber pad 18 is fixedly connected to the sliding frame 24 , which abuts against the outside of the sliding housing 27 and the housing of the charging pile 2 , and seals the connection between the rotating sleeve 17 and the sliding frame 24 , effectively preventing dust from entering the charging pile 2 from the connection.

[0049] Reference Figure 5 and Figure 9 The end of the rotating sleeve 17 extending into the interior of the charging pile 2 is connected to an anti-torsion component, which includes an annular sleeve 16 fixedly connected to the rotating sleeve 17. The inner side of the annular sleeve 16 is rotatably connected to a limiting sleeve 28. The cable 7 passes through the interior of the limiting sleeve 28. The inner side of the limiting sleeve 28 is provided with multiple limiting grooves along the axial direction. Two rubber blocks 33 are slidably connected to the interior of the limiting groove. A second spring 32 is fixedly connected between the two rubber blocks 33. The rubber block 33 extends out of the limiting groove and rests on the outer side of the cable 7.

[0050] Under the elastic force of the second spring 32 , the rubber block 33 is allowed to move relative to the limiting sleeve 28 when the cable 7 is extended or retracted, thereby preventing the rubber block 33 from wrinkling due to fixation and extending the service life of the rubber block 33 .

[0051] An annular groove is provided on the inner side of the annular sleeve 16, and a plurality of first mounting plates 30 are fixedly connected inside the annular groove. A plurality of second mounting plates 31 are fixedly connected to the outer side of the limiting sleeve 28. The plurality of second mounting plates 31 correspond one-to-one to the plurality of first mounting plates 30, and a plurality of first springs 29 are fixedly connected between adjacent first mounting plates 30 and second mounting plates 31.

[0052] Under the elastic force of the first spring 29 , the limiting sleeve 28 is allowed to rotate relative to the annular sleeve 16 , but resets after the rotation, thereby avoiding rigid torsion that damages the cable 7 .

[0053] Reference Figure 2-Figure 4 and Figure 6, the winding component includes a plurality of cylindrical blocks 15 connected to the inside of the charging pile 2, a plurality of retractable arc plates 22 are connected to the outside of the cylindrical blocks 15, and the cable 7 passes around the arc plates 22 on the plurality of cylindrical blocks 15.

[0054] An installation room is provided inside the charging pile 2, and the winding assembly is located inside the installation room. The middle part of the cable 7 passes through the installation room. Multiple motors 9 are installed at the bottom of the installation room. The output end of the motor 9 is fixedly connected to the screw rod 12. Among the multiple cylindrical blocks 15, some of the cylindrical blocks 15 located above are fixedly connected to the inner wall of the installation room, and some of the cylindrical blocks 15 located below are correspondingly threadedly connected to the multiple screw rods 12 and slidably connected to the inner wall of the installation room. Multiple second electric telescopic rods 26 are installed on the outside of the cylindrical blocks 15, and multiple arc plates 22 are fixedly connected one by one to the output ends of the multiple second electric telescopic rods 26.

[0055] When the output end of the second electric telescopic rod 26 is extended, the arc plate 22 moves outward, and the multiple arc plates 22 expand outward, increasing the length of the cable 7 that bypasses the multiple arc plates 22, thereby achieving an effect similar to winding up the cable 7, but without causing friction on the cable 7 itself, thereby protecting the cable 7.

[0056] Reference Figure 2-Figure 4 、 Figure 8 and Figure 10 , emergency power-off mechanism, the emergency power-off mechanism includes a winding device 11 and a protective component connected to the inside of the charging pile 2, a plurality of traction ropes 10 are fixedly connected between the winding end of the winding device 11 and the charging gun 6, and the protective component includes a buffer block that can extend out of the charging pile 2, and the buffer block is located below the sliding frame 24.

[0057] The protective assembly includes a first electric telescopic rod 13 installed inside the installation chamber. The output end of the first electric telescopic rod 13 is fixedly connected to a buffer pad 34. Both sides of the buffer pad 34 are connected to slidable limit plates 35. The buffer pad 34 and the two limit plates 35 form a buffer block. A buffer groove for the buffer block to extend out is opened on the side wall of the installation chamber, and a cover plate 8 is rotatably connected to the buffer groove.

[0058] An electric push rod is installed inside the buffer pad 34, and the limit plate 35 is fixedly connected to the output end of the electric push rod. When the electric push rod works, the two limit plates 35 are pushed out from both sides of the buffer pad 34 to form a slot structure, which is convenient for receiving and limiting subsequent cables 7 and charging guns 6, and protecting the charging guns 6.

[0059] The emergency power-off mechanism also includes a pulling assembly, which includes two spring telescopic rods 14 installed inside the installation chamber. The bottom ends of the two spring telescopic rods 14 are fixedly connected to the same limit rod 19 and rotatably connected to the same one-way rotating rod 20. The limit rod 19 is located above the one-way rotating rod 20. The limit rod 19, the one-way rotating rod 20 and the two spring telescopic rods 14 form a pulling hole. The cable 7 and multiple traction ropes 10 between the winding assembly and the rotating sleeve 17 all pass through the pulling hole. A magnetic block 21 is installed at the bottom end of the spring telescopic rod 14, and an electromagnet 25 is installed on a cylindrical block 15 near the pulling hole. The electromagnet 25 magnetically cooperates with the magnetic block 21.

[0060] The spring telescopic rod 14 is initially in a stretched state. After the electromagnet 25 releases the magnetic attraction to the magnetic block 21, the spring telescopic rod 14 automatically contracts under the action of its own elastic force, thereby conveniently driving the cable 7 to move upward and pulling part of the cable 7 outside back into the installation room, preventing the charging gun 6 from falling directly to the ground after being pulled out.

[0061] One end of the arc plate 22 is fixedly connected to a baffle 23. The baffle 23, the arc plate 22 and the inner wall of the installation chamber form a limit groove. The bottom of the limit groove is connected to a groove. The groove is opened on the outside of the arc plate 22. The groove slides with the cable 7. The electromagnet 25 is installed on a baffle 23.

[0062] The groove forms a limit on the cable 7, effectively preventing the cable 7 from twisting. The limiting groove forms a constraint on the cable 7, preventing the cable 7 from escaping from the arc plate 22, and maintaining the winding assembly's ability to wind up the cable 7.

[0063] When the present invention is in use, the outer side of the base 1 of the charging pile 2 is made of galvanized steel plate, which has good grounding performance and weather resistance, ensuring that lightning is quickly conducted into the ground when a lightning strike occurs. A grounding device is installed inside the base 1, and then a complete lightning protection system is formed through a lightning rod at a high place near the charging pile 2 and a power supply lightning arrester on the charging gun 6 to protect the charging equipment.

[0064] The charging gun 6 is protected by a combination of a conical folding cover 5 and a circular folding cover 36. When the charging gun 6 is not in use, the folding cover can tightly wrap the charging gun 6 to form an effective barrier, preventing dust from entering the connection between the charging gun 6 and the gun discharge port, thereby avoiding poor contact problems caused by dust accumulation.

[0065] If it rains, the rain will slide down along the lines on the surface of the conical folding cover 5 and will not penetrate into the interior, thereby reducing the probability of equipment failure and extending the service life of the charging device.

[0066] There is also a circular folding cover 36 inside the conical folding cover 5 for secondary protection, which further protects the safety of the charging gun 6 interface. Even if the conical folding cover 5 has tiny gaps or wear due to long-term use, the circular folding cover 36 can still provide reliable dust protection.

[0067] In addition, the conical folding cover 5 and the circular folding cover 36 can be directly folded and stretched during the use and storage of the charging gun 6, without the need for the user to perform complicated operations.

[0068] In daily use, the conical folding cover 5 and the circular folding cover 36 are in a folded state and will not affect daily use; in rainy weather, if charging is to be carried out, when pulling out the charging gun 6, the user only needs to gently pull open the conical folding cover 5 and the circular folding cover 36 to block the charging head part of the charging gun 6 to prevent rainwater from gathering on the charging head part of the charging gun 6 before charging.

[0069] Then insert the charging gun 6 into the charging port, the conical folding cover 5 will first contact the shell of the electric car, and at the same time the circular folding cover 36 will be squeezed and folded to provide secondary protection near the charging port. The conical folding cover 5 is magnetically attracted to the shell of the electric car through the magnetic ring 38 to enhance stability and prevent the folding cover from shifting.

[0070] In addition, the user only needs to gently press the rubber ring 37 on the edge of the conical folding cover 5. The rubber ring 37 is made of a rubber strip that swells when it comes into contact with water. When the rubber ring 37 comes into contact with water or moisture, it will absorb moisture and expand in volume, filling the gap between the conical folding cover 5 and the electric vehicle body, forming a waterproof sealing layer to prevent rainwater from entering.

[0071] A guide groove is provided on the outside of the conical folding cover 5 to guide the flow of rainwater, while increasing the contact area between the rainwater and the conical folding cover 5, and taking away part of the heat generated during charging.

[0072] After charging is completed, the user puts the charging gun 6 back into the muzzle, and the conical folding cover 5 and the circular folding cover 36 will automatically fold. The whole process is easy and convenient, which greatly improves the convenience of use.

[0073] In addition, the conical folding cover 5 can also play a buffering role. When the user makes an operational error and causes the charging gun 6 to hit the ground, the unfolded conical structure of the conical folding cover 5 can convert part of the vertical impact force into a horizontal component force, significantly reducing the direct impact force on the charging gun 6 when it falls to the ground, thereby protecting the charging gun 6.

[0074] When the cable 7 is wound up, the entire cable 7 is constrained and separated inside the installation room by multiple cylindrical blocks 15, so as to avoid mutual friction between the cables 7 themselves and reduce the heat generated by winding the cable 7 with a reel in the prior art. In addition, the multiple cylindrical blocks 15 can provide a larger turning radius, reduce the deformation of the cable 7 when bending, and protect the cable 7.

[0075] When the length of the cable 7 needs to be adjusted, the expansion and contraction of the multiple curved plates 22 can be controlled by extending and retracting the output end of the second electric telescopic rod 26, and the winding length of the cable 7 around the cylindrical block 15 and the curved plate 22 can be adjusted, thereby controlling the length of the external cable 7.

[0076] In addition, the output end of the motor 9 can be rotated to control the rotation of the screw rod 12, thereby adjusting the position of the cylindrical block 15 and the length of the cable 7 passing around the cylindrical block 15 to adjust the length of the external cable 7.

[0077] Generally, the arc-shaped plate 22 is opened a certain distance, and the movable cylindrical block 15 on the left is located at the bottom of the installation room, ensuring that the cable 7 is suspended in the air to avoid wear caused by mopping on the floor.

[0078] When the user starts charging and needs to pull out more cables 7, the existing sensing equipment is used for sensing control, so that the arc plate 22 is controlled to shrink and the movable cylindrical block 15 is controlled to move upward, so that the cables 7 can be easily pulled out.

[0079] During the charging process, the charging gun 6 may pop out due to the twisting of the cable 7. The cable 7 inside the installation chamber is first restricted by the groove on the arc plate 22, and then the annular sleeve 16 and the rotating sleeve 17 are used to prevent the cable 7 from twisting, effectively preventing the cable 7 from being excessively twisted during use and affecting normal charging.

[0080] The rotating sleeve 17 is installed on the sliding frame 24 through a spherical joint, so that the rotating sleeve 17 can limit the cable 7 from rotating significantly to prevent the cable 7 from being worn or torsionally damaged, while ensuring that the cable 7 can rotate slightly to meet the user's charging needs.

[0081] The annular sleeve 16 is internally connected to the limiting sleeve 28 for rotation. The limiting sleeve 28 is internally connected to a plurality of rubber blocks 33 for sliding along the axial direction of the cable 7. The rubber blocks 33 are strip-shaped, and the long direction of the strip is consistent with the axial direction of the cable 7. The rubber blocks 33 make the resistance encountered by the cable 7 during twisting greater than the resistance encountered during axial movement, thereby effectively preventing the cable 7 from twisting.

[0082] When the cable 7 is twisted, the second mounting plate 31 rotates close to the first mounting plate 30, compressing the first spring 29, allowing the cable 7 to twist at a small angle, and then automatically rebounds under the elastic force of the first spring 29, reducing the rigid torsion and preventing the cable 7 or the insulation layer from being damaged due to excessive twisting.

[0083] The electric car is parked near the charging pile 2, with the cable 7, charging gun 6 and the car charging port on the same vertical plane, making it convenient to pull out the charging gun 6 later.

[0084] On rainy days, if sparks form between the charging gun 6 and the charging port due to water ingress or lightning strike and start to burn, the connection between the charging gun 6 and the charging port must be disconnected immediately. However, it is extremely dangerous to manually pull out the gun directly. At this time, first control the movable cylindrical block 15 close to the rotating sleeve 17 to move upward, and drive the rotating sleeve 17 upward through the cable 7 so that the height of the rotating sleeve 17 is flush with the height of the charging port. In addition, the sliding frame 24 can limit the rotation of the rotating sleeve 17, so that the rotating sleeve 17 can only rotate to the horizontal direction at most, so as to keep the cable 7 as horizontal as possible and reduce the lateral force during subsequent removal.

[0085] Then, the first electric telescopic rod 13 is started, and its output end pushes the buffer pad 34, so that the buffer pad 34 pushes the cover plate 8 out of the installation chamber, and then the two limit plates 35 are extended from both sides of the buffer pad 34 through the electric control push rod inside the buffer pad 34, completing the preparation work.

[0086] After the preparation is completed, the charging pile 2 and the electric vehicle are powered off through the existing electronic control equipment, and then the charging gun 6 is unlocked by operating the central control screen.

[0087] After unlocking is completed, the winding device 11 is started to wind up the traction rope 10. The other end of the traction rope 10 is installed on the charging gun 6. By winding up the traction rope 10, the charging gun 6 is directly pulled, so that the basically straight cable 7 and the charging gun 6 are pulled, thereby pulling the charging gun 6 out of the charging port. The operator does not need to get close to avoid injury.

[0088] The pulled-out charging gun 6 falls naturally and will first be blocked by the buffer pad 34 extending a distance from the installation room. Then the electromagnet 25 will be disconnected, releasing the magnetic lock on the magnetic block 21. The spring telescopic rod 14 will quickly retract upward under the action of its own elastic force. At this time, the one-way rotating rod 20 will quickly drive the cable 7 to move upward. The one-way rotating rod 20 is connected to the spring telescopic rod 14 through a one-way bearing, which can only facilitate the cable 7 to move inward on the one-way rotating rod 20, thereby facilitating the upward movement of the cable 7, so that the external cable 7 is retracted into the interior of the installation room, preventing the external cable 7 from being too long and causing the charging gun 6 to hit the ground.

[0089] Cooperating with the contraction of the spring telescopic rod 14, the buffer pad 34 is controlled to be retracted a certain distance, so that the charging gun 6 is finally stuck on the buffer block through the conical folding cover 5, and the charging gun 6 is pulled out.

[0090] At this time, the operator can activate the existing fire extinguishing system to extinguish the fire on the charging gun 6 and the cable 7.

[0091] The above description is only 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 in the scope of protection of the present invention.

Claims

1. A waterproof lightning protection charging device for a new energy electric vehicle, comprising a charging pile (2), characterized in that: Also includes: A lightning protection system connected to the charging pile (2); A charging gun (6) is electrically connected to the interior of the charging pile (2) via a cable (7), a rotating sleeve (17) is slidably sleeved on the middle portion of the cable (7), a ball head of the rotating sleeve (17) is connected to a sliding frame (24), and the sliding frame (24) is slidably connected to the housing of the charging pile (2); A waterproof folding cover is connected to the outside of the charging gun (6) and cooperates with the car body to seal the charging head of the charging gun (6); A reeling assembly, the reeling assembly comprising a plurality of cylindrical blocks (15) connected to the interior of the charging pile (2), a plurality of retractable arc-shaped plates (22) connected to the outside of the cylindrical blocks (15), and a cable (7) passing around the arc-shaped plates (22) on the plurality of cylindrical blocks (15); An emergency power-off mechanism includes a reeling device (11) and a protective component connected to the interior of a charging pile (2), a plurality of traction ropes (10) being fixedly connected between the reeling end of the reeling device (11) and the charging gun (6), and the protective component including a buffer block that can extend out of the charging pile (2), and the buffer block is located below a sliding frame (24).

2. The waterproof lightning protection charging device for new energy electric vehicles according to claim 1 is characterized in that: The bottom of the charging pile (2) is a base (1), and the lightning protection system includes a grounding device installed inside the base (1), a power supply lightning arrester installed on the charging gun (6), and a lightning rod installed at a high place near the charging pile (2).

3. The waterproof lightning protection charging device for new energy electric vehicles according to claim 1 is characterized in that: The waterproof folding cover comprises a conical folding cover (5) and a circular folding cover (36) fixedly connected to the outside of the charging gun (6); the circular folding cover (36) and the charging gun (6) are in clearance fit; the conical folding cover (5) is located on the outside of the circular folding cover (36), and the end with the larger opening faces the charging head of the charging gun (6); a rubber ring (37) and a magnetic ring (38) are fixedly connected to the inner side of the end of the conical folding cover (5) facing the charging head; the rubber ring (37) is made of water-absorbing and swellable rubber; the magnetic ring (38) is magnetically matched with the car body; a gun discharge port is provided on the charging pile (2); the charging gun (6) is snap-fitted with the gun discharge port; the top of the gun discharge port is fixedly connected to an arc cover (4); the charging gun (6) is located inside the arc cover (4).

4. The waterproof lightning protection charging device for new energy electric vehicles according to claim 1, characterized in that: A communication window is provided on the housing of the charging pile (2); the top of the communication window is fixedly connected to a dustproof housing (3); the bottom is slidably connected to a sliding housing (27); the sliding housing (27) and the dustproof housing (3) cooperate to seal the communication window; the sliding frame (24) is fixedly connected to the sliding housing (27); a rubber pad (18) is fixedly connected to the sliding frame (24); the rubber pad (18) abuts against the outside of the sliding housing (27) and the housing of the charging pile (2), and seals the connection between the rotating sleeve (17) and the sliding frame (24).

5. The waterproof lightning protection charging device for new energy electric vehicles according to claim 4 is characterized in that: One end of the rotating sleeve (17) extending into the interior of the charging pile (2) is connected to an anti-twist assembly, and the anti-twist assembly includes an annular sleeve (16) fixedly connected to the rotating sleeve (17), and the inner side of the annular sleeve (16) is rotatably connected to a limiting sleeve (28), and the cable (7) passes through the interior of the limiting sleeve (28). The inner side of the limiting sleeve (28) is provided with a plurality of limiting grooves along the axial direction, and two rubber blocks (33) are slidably connected to the interior of the limiting grooves, and a second spring (32) is fixedly connected between the two rubber blocks (33), and the rubber block (33) extends out of the limiting groove and abuts against the outer side of the cable (7).

6. The waterproof lightning protection charging device for new energy electric vehicles according to claim 2, characterized in that: An annular groove is provided on the inner side of the annular sleeve (16), and a plurality of first mounting plates (30) are fixedly connected inside the annular groove. A plurality of second mounting plates (31) are fixedly connected to the outer side of the limiting sleeve (28), and the plurality of second mounting plates (31) correspond one to one with the plurality of first mounting plates (30). A plurality of first springs (29) are fixedly connected between adjacent first mounting plates (30) and second mounting plates (31).

7. The waterproof lightning protection charging device for new energy electric vehicles according to claim 1, characterized in that: An installation room is provided inside the charging pile (2), a winding assembly is located inside the installation room, a middle portion of the cable (7) passes through the installation room, a plurality of motors (9) are installed at the bottom of the installation room, an output end of the motor (9) is fixedly connected to a screw rod (12), among the plurality of cylindrical blocks (15), some of the cylindrical blocks (15) located above are fixedly connected to the inner wall of the installation room, and some of the cylindrical blocks (15) located below are correspondingly threadedly connected to the plurality of screw rods (12) and slidably connected to the inner wall of the installation room, a plurality of second electric telescopic rods (26) are installed outside the cylindrical blocks (15), and a plurality of arc-shaped plates (22) are fixedly connected to the output ends of the plurality of second electric telescopic rods (26) in a one-to-one correspondence.

8. The waterproof lightning protection charging device for new energy electric vehicles according to claim 7 is characterized in that: The protective assembly comprises a first electric telescopic rod (13) installed inside an installation chamber, a buffer pad (34) is fixedly connected to the output end of the first electric telescopic rod (13), both sides of the buffer pad (34) are connected to slidable limit plates (35), the buffer pad (34) and the two limit plates (35) form a buffer block, a buffer groove for the buffer block to extend is opened on the side wall of the installation chamber, and a cover plate (8) is rotatably connected to the buffer groove.

9. The waterproof lightning protection charging device for new energy electric vehicles according to claim 8, characterized in that: The emergency power-off mechanism also includes a lifting assembly, which includes two spring telescopic rods (14) installed inside the installation chamber, the bottom ends of the two spring telescopic rods (14) are fixedly connected to the same limit rod (19) and rotatably connected to the same one-way rotating rod (20), the limit rod (19) is located above the one-way rotating rod (20), the limit rod (19), the one-way rotating rod (20) and the two spring telescopic rods (14) form a lifting hole, the cable (7) between the winding assembly and the rotating sleeve (17) and multiple traction ropes (10) all pass through the lifting hole, the bottom end of the spring telescopic rod (14) is installed with a magnetic block (21), and an electromagnet (25) is installed on a cylindrical block (15) near the lifting hole, and the electromagnet (25) and the magnetic block (21) are magnetically matched.

10. The waterproof lightning protection charging device for new energy electric vehicles according to claim 9, characterized in that: One end of the arc plate (22) is fixedly connected to a baffle (23), and the baffle (23), the arc plate (22) and the inner wall of the installation chamber form a limit groove. The bottom of the limit groove is connected to a groove, which is opened on the outer side of the arc plate (22). The groove is slidably matched with the cable (7), and the electromagnet (25) is installed on a baffle (23).

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