Anti-dragging automobile charging pile

Abstract

The invention discloses an anti-dragging automobile charging pile, and relates to the technical field of charging piles, the anti-dragging automobile charging pile comprises a charging pile body, a controller is fixed in a pile body of the charging pile body, a hollow table is fixed to the inclined upper portion of the charging pile body through a support, and a through hole is formed in the bottom of the hollow table; a cable of the charging pile body is led into the hollow table and led out of the through hole, one end of the cable is connected with a charging gun, a winding assembly used for winding the cable is arranged in the hollow table, and an auxiliary mechanism is arranged in the hollow table. The device is designed based on a suspended pay-off principle; when the charging gun is accidentally dragged and separated due to movement of a vehicle, the winding assembly and the auxiliary mechanism located at the top of the charging pile can act immediately, and the charging gun is lifted upwards through the cable to be suspended, so that the charging gun is effectively prevented from being damaged due to direct falling to the ground, and meanwhile, the charging gun is prevented from rolling into the position below vehicle tires to be ground.

Description

Technical Field

[0001] This invention relates to the field of charging pile technology, and in particular to an anti-towing car charging pile. Background Technology

[0002] Charging piles function similarly to gas pumps at gas stations. They can be fixed to the ground or walls and installed in public buildings, shopping malls, public parking lots, residential parking lots, or charging stations. They can charge various models of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles.

[0003] A search revealed patent document CN115503529B, which discloses an anti-towing car charging station, relating to the field of car charging stations. This anti-towing car charging station includes a supporting base plate, with the car charging station fixedly connected to its upper surface. A charging cable is fixedly installed on the right side of the car charging station, and a fixed support block is fixedly connected to the end of the charging cable away from the car charging station. A charging plug is located on the front of the fixed support block. This anti-towing car charging station, through the inclusion of anti-towing straps and fixed support blocks, utilizes the cooperative relationship between the fixed support block and the anti-towing straps to allow the fixed support block to pull the charging plug, thereby achieving the effect of automatically and non-destructively removing the charging head and preventing damage to the charging station caused by towing.

[0004] Based on research and existing technology findings, it has been discovered that charging guns are typically designed with an emergency ejection mechanism to prevent cables from being pulled off or charging stations from being knocked over by vehicles after charging is complete. This mechanism plays a crucial role in protecting the hardware. However, this safety design may introduce new potential risks: the trajectory of the ejected charging gun after landing is unpredictable. If it rolls in front of or under a vehicle's tires, it is highly susceptible to being run over by a moving vehicle. Under immense pressure, the charging gun's outer casing can rupture, directly exposing the internal high-voltage electrodes. If the charging system fails to disconnect the power supply promptly and completely, the exposed live parts pose a serious threat of electric shock, especially on wet ground or when accidentally touched by a user, with potentially disastrous consequences. This exposes the limitations of a single safety measure—the ejection function, intended to address the risk of "pulling off," inadvertently creates secondary dangers of "running over" and "electric shock" in complex real-world scenarios, highlighting the importance of conducting comprehensive, multi-scenario risk assessments in safety design. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-towing car charging station to solve the problems mentioned in the background art.

[0006] The technical solution of the present invention is: an anti-towing car charging pile, including a charging pile body, a controller fixed inside the charging pile body, a hollow platform fixed to the upper part of the charging pile body by a bracket, a through hole at the bottom of the hollow platform, a cable of the charging pile body being introduced into the hollow platform and led out through the through hole, and one end of the cable being connected to a charging gun, a winding assembly for winding the cable being provided inside the hollow platform, an auxiliary mechanism being provided inside the hollow platform, and the auxiliary mechanism being composed of three independent winding mechanisms evenly distributed around the main winding assembly, and the winding mechanism winding up steel ropes, and a rotating structure being provided together with each steel rope at the end of the cable connected to the charging gun.

[0007] Preferably, a data acquisition camera is installed at the top of the charging pile body, and the data acquisition camera is electrically connected to the controller.

[0008] Preferably, a touch screen panel is fixed to the outside of the charging pile body, and the touch screen panel is electrically connected to the controller.

[0009] Preferably, two concave rollers are rotatably mounted on both sides of the through hole, and the entire cable is disposed within the recesses of the two concave rollers.

[0010] Preferably, the winding assembly includes a second fixed frame, a second winding wheel, and a second servo motor. The second fixed frame is fixed to the hollow platform, the axle of the second winding wheel is rotatably mounted on the second fixed frame, the second servo motor is electrically connected to the controller, and the output shaft of the second servo motor is coaxially fixed with the second winding wheel.

[0011] Preferably, a conductive slip ring is fixed inside the hollow platform, the cable is split into two sections, the cable connected to the charging gun is wound on the winding wheel, and the other end of the cable is connected to the power input end of the conductive slip ring, and the power output end of the conductive slip ring is connected to the cable connected to the charging gun.

[0012] Preferably, the winding mechanism includes a first fixed frame and a first winding wheel. The first fixed frame is fixed to the hollow platform. The axle of the first winding wheel is rotatably mounted on the first fixed frame. The steel rope is wound around the first winding wheel. One of the first fixed frames is fixed with a first servo motor. The first servo motor is electrically connected to the controller, and the output shaft of the first servo motor is coaxially fixed with the first winding wheel. One end of each first winding wheel is fixed with a universal joint. Two universal joints on the same side are jointly fixed with a transmission rod. Multiple bearing seats fixed to the hollow platform are rotatably mounted on the outer side of the transmission rod.

[0013] Preferably, the rotating structure includes a fixing ring fixed to the cable and three recesses evenly distributed on the outside of the fixing ring. The recesses are fixed to the fixing ring, and a rotating block is rotatably installed in the recess of the recess. The three rotating blocks are respectively fixed to the steel rope.

[0014] Preferably, three ball heads are movably embedded in the bottom of the hollow platform, and the three steel ropes observe the three ball heads respectively. Multiple metal cylinders are sleeved on the outside of the steel ropes.

[0015] Preferably, the bottom of the ball head and one end of the metal cylinder both have an inner conical hole, and the other end of the metal cylinder has a conical head that is coaxially arranged with it and adapted to the inner conical hole.

[0016] This invention provides an improved anti-towing car charging station, which, compared with the prior art, has the following improvements and advantages: Firstly, this invention is designed based on the principle of suspended cable release. When the charging gun is accidentally dragged away due to vehicle movement, the winding component and auxiliary mechanism located at the top of the charging pile will immediately activate and lift the charging gun upward through the cable, suspending it in the air. This effectively prevents the charging gun from falling directly to the ground and causing damage, while also preventing it from rolling under the vehicle tires and being crushed. Secondly, the auxiliary mechanism of the present invention consists of three independent winding mechanisms evenly distributed around the main winding assembly; each mechanism controls a steel rope, the end of which is fixed to the end of the cable near the charging gun; after the charging gun is detached, the three steel ropes are wound synchronously from three different directions, forming a balanced multi-point tension on the cable, significantly suppressing its swing amplitude, thereby preventing the charging gun from colliding with the vehicle body during the recycling process. Thirdly, multiple metal cylinders are spaced apart on the outside of the three steel cables. After the steel cables are wound to a specific position, these metal cylinders will come into contact with each other and be tightly compressed to form a temporary rigid section. This can quickly dissipate the swaying kinetic energy and achieve rapid braking. On the other hand, at any stage of the recovery process, the metal cylinders can increase the overall stiffness and mass of the steel cables, effectively suppressing their large flexible swaying and further reducing the risk of collision with vehicles. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the hollow platform of the present invention; Figure 4 This is a schematic diagram of the hollow strip bottom region structure of the present invention; Figure 5 for Figure 4 A magnified structural diagram at point A; Figure 6 for Figure 4 A magnified structural diagram at point B; Figure 7 This is a schematic diagram of the three-dimensional structure of the sphere's center in this invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the sphere of the present invention; Figure 9 This is a schematic diagram of the metal cylinder structure of the present invention.

[0019] Figure label: 1. Charging pile body; 2. Acquisition camera; 3. Hollow platform; 4. Bracket; 5. Charging gun; 6. Cable; 7. First servo motor; 8. First fixing frame; 9. First winding wheel; 10. Universal shaft; 11. Transmission rod; 12. Bearing seat; 13. Steel rope; 14. Second fixing frame; 15. Second winding wheel; 16. Second servo motor; 17. Conductive slip ring; 18. Metal cylinder; 19. Ball head; 20. Through hole; 21. Concave roller; 22. Fixing ring; 23. Notch; 24. Rotating block; 25. Conical head; 26. Inner conical hole; 27. Touch screen panel. Detailed Implementation

[0020] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides an improved anti-towing car charging station. The technical solution of this invention is as follows: like Figures 1 to 9As shown, this embodiment of the invention provides an anti-towing car charging pile, including a charging pile body 1. A controller is fixed inside the charging pile body 1. A hollow platform 3 is fixed to the upper part of the charging pile body 1 by a bracket 4. A through hole 20 is formed at the bottom of the hollow platform 3. A cable 6 of the charging pile body 1 is introduced into the hollow platform 3 and led out from the through hole 20. One end of the cable 6 is connected to a charging gun 5. A winding assembly for winding the cable 6 is provided inside the hollow platform 3. An auxiliary mechanism is provided inside the hollow platform 3. The auxiliary mechanism consists of three independent winding mechanisms evenly distributed around the main winding assembly. The winding mechanism winds up a steel rope 13. The end of the cable 6 connected to the charging gun 5 and each steel rope 13 are provided with a rotating structure. It should be noted that the charging gun 5 is a common model on the market, but the charging gun 5 does not have a locking structure. This is designed so that the charging gun 5 can be dislodged when dragged. It should be further noted that the specific model and specifications of the controller need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here. The power supply of the controller and its principle are clear to those skilled in the art, and will not be described in detail here. As can be seen from the above connection relationship, when the car starts, the car pulls out the charging gun 5. At this time, the winding assembly winds up the cable 6, and the charging gun 5 is stored upward, based on the principle of suspended cable release. When the charging gun 5 is accidentally dragged away due to the movement of the vehicle, the winding assembly and auxiliary mechanism located at the top of the charging pile will immediately act to lift the charging gun 5 upward through the cable 6, making it suspended in the air. This effectively prevents the charging gun 5 from falling directly to the ground and causing damage, and at the same time prevents it from rolling under the vehicle tires and being run over.

[0022] Preferably, a data acquisition camera 2 is installed at the top of the charging pile body 1, and the data acquisition camera 2 is electrically connected to the controller; It should be noted that the specific model and specifications of the acquisition camera 2 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here. The power supply and principle of the acquisition camera 2 are clear to those skilled in the art, and will not be described in detail here. It should be further explained that the acquisition camera 2 is used to monitor the car's status. If the car starts, the acquisition camera 2 will send a signal to the controller, and the controller will handle the interruption.

[0023] Preferably, a touch screen panel 27 is fixed on the outside of the charging pile body 1, and the touch screen panel 27 is electrically connected to the controller. It should be noted that the specific model and specifications of the touch panel 27 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here. The power supply and principle of the touch panel 27 are clear to those skilled in the art, and will not be described in detail here. It should be further explained that the touchpad 27 has a common touch setting in the market, which makes it easy for users to operate.

[0024] Preferably, two concave rollers 21 are rotatably mounted on both sides of the through hole 20, and the cable 6 is entirely disposed in the recesses 23 of the two concave rollers 21. It should be noted that the two concave rollers 21 are designed to improve the stability of the cable 6 being released, and at the same time, the cable 6 is less likely to collide with the through hole 20.

[0025] Preferably, the winding assembly includes a second fixed frame 14, a second winding wheel 15, and a second servo motor 16. The second fixed frame 14 is fixed to the hollow platform 3. The axle of the second winding wheel 15 is rotatably mounted on the second fixed frame 14. The second servo motor is electrically connected to the controller, and the output shaft of the second servo motor 16 is coaxially fixed with the second winding wheel 15. A conductive slip ring 17 is fixed inside the hollow platform 3. The cable 6 is split into two sections. The cable 6 connected to the charging gun 5 is wound around the winding wheel, and the other end of the cable 6 is connected to the power input end of the conductive slip ring 17. The power output end of the conductive slip ring 17 is connected to the cable 6 connected to the charging gun 5. It should be noted that the specific model and specifications of the second servo motor 16 and the conductive slip ring 17 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here. The power supply and principle of the second servo motor 16 and the conductive slip ring 17 are clear to those skilled in the art, and will not be described in detail here. It should be further explained that the cable 6 on the second winding reel 15 is led out from the axle on the second winding reel 15, which can ensure that the second winding reel 15 can perform winding work normally. It should be further explained that the conductive slip ring 17 is a rotating connecting joint responsible for transmitting current, data and signals between the fixed and rotating parts, so that the cable 6 will not twist during the winding process, thereby protecting the cable 6. It should be further explained that the second servo motor 16 rotates the second take-up wheel 15 through the output shaft, thereby the second take-up wheel 15 performs the winding and unwinding of the cable 6.

[0026] Preferably, the winding mechanism includes a first fixed frame 8 and a first winding wheel 9. The first fixed frame 8 is fixed to the hollow platform 3. The axle of the first winding wheel 9 is rotatably mounted on the first fixed frame 8. The steel rope 13 is wound around the first winding wheel 9. One of the first fixed frames 8 is fixed with a first servo motor 7. The first servo motor 7 is electrically connected to the controller. The output shaft of the first servo motor 7 is coaxially fixed with the first winding wheel 9. One end of each first winding wheel 9 is fixed with a universal joint 10. Two universal joints 10 located on the same side are jointly fixed with a transmission rod 11. Multiple bearing seats 12 fixed to the hollow platform 3 are rotatably mounted on the outer side of the transmission rod 11. It should be noted that the specific model and specifications of the first servo motor 7 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here. The power supply and principle of the first servo motor 7 are clear to those skilled in the art, and will not be described in detail here. It should be further explained that the first servo motor 7 rotates the first take-up wheel 9 through the output shaft, and the first take-up wheel 9 performs the winding and unwinding of the cable 6. The first take-up wheel 9 rotates the rotating rod through the universal joint 10 connected to it. One end of the rotating rod drives another first take-up wheel 9 to rotate through another universal joint 10, and so on, so that the three first take-up wheels 9 rotate synchronously in the same direction. Further explanation is needed: when cable 6 is being laid out, the three first winding wheels 9 simultaneously release the steel rope 13. At this time, cable 6 is under tension in three directions, making the laying out of cable 6 more stable. When the car starts and drags cable 6, the charging gun 5 is detached. The acquisition camera 2 recognizes the car starting. At this time, when cable 6 is being wound up, the three first winding wheels 9 start winding up. After the charging gun 5 is detached, the three steel ropes 13 are wound up simultaneously from three different directions, forming a balanced multi-point tension on cable 6, significantly suppressing its swing amplitude, thereby preventing the charging gun 5 from colliding with the vehicle body during the retrieval process.

[0027] Preferably, the rotating structure includes a fixed ring 22 fixed to the cable 6 and three recesses evenly distributed on the outside of the fixed ring 22. The recesses are fixed to the fixed ring 22. A rotating block 24 is rotatably installed in the recess 23 of the recess. The three rotating blocks 24 are respectively fixed to the steel rope 13. Three ball heads 19 are movably embedded in the bottom of the hollow platform 3. The three steel ropes 13 observe the three ball heads 19 respectively. Multiple metal cylinders 18 are sleeved on the outside of the steel ropes 13. The bottom of the ball head 19 and one end of the metal cylinder 18 both have an inner conical hole 26. The other end of the metal cylinder 18 has a cone head 25 coaxially arranged with it and adapted to the inner conical hole 26. It should be noted that after the steel cable 13 is wound to a specific position, these metal cylinders 18 will come into contact with each other and be tightly compressed to form a temporary rigid section. This can quickly dissipate the swaying kinetic energy and achieve rapid braking; on the other hand, at any stage of the recovery process, the metal cylinders 18 can increase the overall stiffness and mass of the steel cable 13, effectively suppressing its large flexible swaying and further reducing the risk of collision with vehicles. It should be further explained that the cone head 25 and the cone hole are designed to facilitate the stable insertion of each metal cylinder 18 and the metal cylinder 18 and the ball head 19 into each other.

[0028] Working principle: During use, the user positions the vehicle's charging port below the charging gun 5 and operates the system via the touchscreen 27. The second servo motor 16 rotates the second winding wheel 15 through its output shaft, thus unwinding the cable 6. Simultaneously, the first servo motor 7 rotates the first winding wheel 9 through its output shaft, also unwinding the cable 6. The first winding wheel 9 rotates a rotating rod via a universal joint 10 connected to it. One end of the rotating rod drives another first winding wheel 9 through another universal joint 10, and so on, with all three first winding wheels 9 rotating synchronously in the same direction. When the cable 6 is unwinding, the three first winding wheels 9 simultaneously release the steel rope 13, at which point the cable 6 receives tension in three directions, making the unwinding of the cable 6 more stable. When the user starts the car without unplugging the charging gun 5, the camera 2 recognizes the car starting. At this time, when the cable 6 is being wound up, the three first winding wheels 9 are winding up the cable. After the charging gun 5 is detached, the three steel ropes 13 are wound up synchronously from three different directions, forming a balanced multi-point tension on the cable 6, which significantly suppresses its swing amplitude, thereby preventing the charging gun 5 from colliding with the vehicle body during the recycling process. After the steel cable 13 is wound to a specific position, the metal cylinders 18 will come into contact with each other and be tightly compressed to form a temporary rigid section. This can quickly dissipate the swaying kinetic energy and achieve rapid braking. On the other hand, at any stage of the recovery process, the metal cylinders 18 can increase the overall stiffness and mass of the steel cable 13, effectively suppressing its large flexible swaying and further reducing the risk of collision with vehicles.

[0029] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tow-resistant car charging station, comprising a charging station body (1), characterized in that: The charging pile body (1) has a controller fixed inside the pile body. A hollow platform (3) is fixed on the upper side of the charging pile body (1) by a bracket (4). The bottom of the hollow platform (3) has a through hole (20). The cable (6) of the charging pile body (1) is introduced into the hollow platform (3) and led out from the through hole (20). One end of the cable (6) is connected to a charging gun (5). The hollow platform (3) is equipped with a winding assembly for winding the cable (6). The hollow platform (3) is equipped with an auxiliary mechanism. The auxiliary mechanism consists of three independent winding mechanisms evenly distributed around the main winding assembly. The winding mechanism winds up steel ropes (13). The end of the cable (6) connected to the charging gun (5) and each steel rope (13) are equipped with a rotating structure.

2. The anti-towing car charging station according to claim 1, characterized in that: A camera (2) is installed at the top of the charging pile body (1), and the camera (2) is electrically connected to the controller.

3. The anti-towing car charging station according to claim 1, characterized in that: A touch screen panel (27) is fixed on the outside of the charging pile body (1), and the touch screen panel (27) is electrically connected to the controller.

4. The anti-towing car charging station according to claim 1, characterized in that: Two concave rollers (21) are rotatably mounted on both sides of the through hole (20), and the cable (6) is set entirely in the recess (23) of the two concave rollers (21).

5. The anti-towing car charging station according to claim 1, characterized in that: The winding assembly includes a second fixed frame (14), a second winding wheel (15), and a second servo motor (16). The second fixed frame (14) is fixed to the hollow platform (3). The axle of the second winding wheel (15) is rotatably mounted on the second fixed frame (14). The second servo motor is electrically connected to the controller, and the output shaft of the second servo motor (16) is coaxially fixed with the second winding wheel (15).

6. The anti-towing car charging station according to claim 5, characterized in that: The hollow platform (3) has a conductive slip ring (17) fixed inside. The cable (6) is split into two sections. The cable (6) connected to the charging gun (5) is wound on the winding wheel. The other end of the cable (6) is connected to the power input end of the conductive slip ring (17). The power output end of the conductive slip ring (17) is connected to the cable (6) connected to the charging gun (5).

7. The anti-towing car charging station according to claim 6, characterized in that: The winding mechanism includes a first fixed frame (8) and a first winding wheel (9). The first fixed frame (8) is fixed to the hollow platform (3). The axle of the first winding wheel (9) is rotatably mounted on the first fixed frame (8). The steel rope (13) is wound on the first winding wheel (9). One of the first fixed frames (8) is fixed with a first servo motor (7). The first servo motor (7) is electrically connected to the controller. The output shaft of the first servo motor (7) is coaxially fixed with the first winding wheel (9). One end of each first winding wheel (9) is fixed with a universal joint (10). Two universal joints (10) located on the same side are jointly fixed with a transmission rod (11). Multiple bearing seats (12) fixed to the hollow platform (3) are rotatably mounted on the outer side of the transmission rod (11).

8. The anti-towing car charging station according to claim 1, characterized in that: The rotating structure includes a fixed ring (22) fixed to the cable (6) and three recesses evenly distributed on the outside of the fixed ring (22). The recesses are fixed to the fixed ring (22), and a rotating block (24) is rotatably installed in the recess (23) of the recesses. The three rotating blocks (24) are respectively fixed to the steel rope (13).

9. The anti-towing car charging station according to claim 1, characterized in that: The bottom of the hollow platform (3) is movably embedded with three ball heads (19), and the three steel ropes (13) observe the three ball heads (19) respectively. Multiple metal cylinders (18) are sleeved on the outside of the steel ropes (13).

10. The anti-towing car charging station according to claim 9, characterized in that: The bottom of the ball head (19) and one end of the metal cylinder (18) both have an inner conical hole (26), and the other end of the metal cylinder (18) has a conical head (25) that is coaxially arranged with it and adapted to the inner conical hole (26).

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