A charging pile with an automatic cable retraction structure

Abstract

The present invention relates to the technical field of electric vehicle charging piles, and more specifically discloses a charging pile with an automatic wire-winding structure, including a charging pile body, wherein the charging pile body includes a sealed door, an auxiliary charging bracket, an automatic wire-winding device and a passive door opening and closing device. The present invention is provided with an auxiliary charging bracket, which is conducive to solving the problem of the charging cable being dragged on the ground and being contaminated due to the thicker and heavier fast charging cable during the charging process. By setting the charging auxiliary bracket, the charging cable is in the air and does not come into contact with the ground. At the same time, since the charging ports of different electric vehicles have different heights, the auxiliary charging bracket can adjust the height of the charging gun and independently set the height of the charging gun according to different electric vehicles, thereby improving the charging efficiency. The present invention is provided with a tension sensor, which is conducive to real-time monitoring of tension changes during use, thereby preventing the traction line from being subjected to excessive tension and affecting its service life.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging piles, and more specifically to a charging pile with an automatic wire-retracting structure. Background Art

[0002] A charging pile is a device that replenishes energy for electric vehicles. Charging piles are generally divided into two types according to different scenario requirements. One is a home charging pile, which is usually used and maintained by electric car owners personally. The other is a public charging pile, which is usually installed in charging stations, shopping malls, public parking lots, and community underground parking lots to provide services for electric car owners in need.

[0003] In the use scenario of home charging piles, from the perspective of cost and practicality, most home charging piles use slow charging mode, which can be used at night. The overall footprint of the charging pile is also small, and the overall weight of the required charging cables is light. Generally, the charging operation of the electric vehicle can be completed with one hand, and the cables are easy to store and place after charging. In the use scenario of public charging piles, most public charging piles have a fast charging mode. The overall weight of the charging cables they use is large, and they are thicker than slow charging cables. Using one hand puts more pressure on the arm, and usually both hands are needed to complete the charging operation of the electric vehicle. At the same time, the charging cable is prone to friction with the ground during use.

[0004] When using a public charging pile, it is inconvenient to use due to the heavy weight of the cable. At the same time, the current charging cable may rub against the ground during use, and the dust or sharp objects on the ground may cause certain damage and dirt to the charging cable. After using the public charging pile, the electric vehicle owner is usually required to manually store the charging cable to complete the entire charging process. During this process, the above problems may be further magnified, causing the wear of the charging cable to increase. For the owner of the public charging pile, the daily maintenance cost of the public charging pile increases. At the same time, the safety of the damaged charging cable during the charging process will also be reduced. The current mainstream method is to assist charging by designing a take-up device. For fast charging piles, the thicker charging cable is rolled up and stored due to its limited curvature. The fast charging cable winding and take-up device usually requires more volume to complete the winding. At the same time, the service life of the charging cable that has been stretched and bent multiple times will also be reduced. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a charging pile with an automatic wire-retracting structure to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a charging pile with an automatic wire-retracting structure, comprising a charging pile body, a sealed door, an auxiliary charging bracket, an automatic wire-retracting device and a passive door-opening device, wherein a charging pile operation panel is installed on the front of the charging pile body, a sealed door is installed on the side, the automatic wire-retracting device is installed on the inner part of the charging pile body close to the back, the auxiliary charging bracket is installed on the inner part of the charging pile body close to the side of the sealed door, the passive door-opening device is installed between the auxiliary charging bracket and the automatic wire-retracting device, close to the sealed door, and a wire outlet hole is provided above the sealed door;

[0007] Furthermore, one side of the hinge is connected to the sealed door and the other side is fixed to the back plate, one side of the connecting rod is fixed to the sealed door and the other side is connected to the slider, the slider is located on the guide rail, one side of the spring is connected to the fixed block and the other side is connected to the slider.

[0008] Furthermore, an elastic fixing rod is installed above the auxiliary charging bracket, the charging gun is fixed in the middle by the elastic fixing rod, a rotating shaft is installed at the front end of the telescopic frame, a rotating groove is opened at the rear end, the rotating groove is sleeved on the rotating shaft, a telescopic rotating shaft is installed at the intersection of the telescopic frame, the traction line is installed on the telescopic rotating shaft, and a power wheel is installed under the auxiliary charging bracket.

[0009] Furthermore, a threaded rod is installed on the driving motor, the threaded rod passes through the connecting rod, the cable roller is fixed on the connecting rod, a lead drive device is installed on the side of the threaded rod close to the driving motor, the traction wire is wound around the lead drive device, the charging wire is wrapped around the cable roller at a certain angle through the movable groove, a tension sensor is installed at the end of the lower charging wire, the limiting block is located on the side of the movable groove away from the driving motor, and a limiting groove is opened on the threaded rod.

[0010] Furthermore, a bearing is installed in the middle of the cable roller, a cable groove is opened on the outside, a rolling shaft is installed in the center of the bearing, and the cylindrical roller is installed in the bearing in the circumferential direction of the rolling shaft.

[0011] Technical effects and advantages of the present invention:

[0012] 1. The present invention is provided with an auxiliary charging bracket, which is conducive to solving the problem that the charging cable is dragged on the ground and caused to be contaminated due to the thicker and heavier fast charging cable during the charging process. By providing the charging auxiliary bracket, the charging cable is in the air and does not come into contact with the ground. At the same time, since the heights of the charging ports of different electric vehicles are also different, the auxiliary charging bracket can adjust the height of the charging gun and independently set the height of the charging gun according to different electric vehicles, thereby improving the charging efficiency.

[0013] 2. The present invention is provided with an automatic cable retracting device, which is helpful to solve the problem of cable retraction and deployment when the charging pile is in use. Through the common function of the traction line and the charging line, the charging bracket can be released and recovered autonomously, avoiding the problem that the charging cable and the charging gun cannot be promptly collected and stored after use. At the same time, by designing an AI data model, electric vehicle positioning and charging operations can be realized and the model can be continuously optimized and improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the structure of the passive door opening and closing device of the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the auxiliary charging bracket of the present invention.

[0018] Figure 5 It is a schematic structural diagram of the telescopic frame connection mechanism of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the automatic wire taking-up device of the present invention.

[0020] Figure 7 It is a schematic diagram of the threaded rod structure of the present invention.

[0021] Figure 8 It is a schematic diagram of the cable roller structure of the present invention.

[0022] Fig. 9 It is a schematic diagram of the bearing structure of the present invention.

[0023] Fig.10 It is a schematic diagram of a charging pile control method device of the present invention.

[0024] Fig.11 It is a schematic flow chart of the charging control method of the present invention.

[0025] The accompanying drawings are marked as follows: 1. Charging pile body; 101. Wire outlet hole; 2. Sealed door; 3. Auxiliary charging bracket; 301. Elastic fixing rod; 302. Telescopic frame; 3021. Rotating groove; 3022. Rotating axis; 303. Traction line; 304. Telescopic rotating axis; 305. Lifting rod; 4. Automatic wire taking-up device; 401. Driving motor; 402. Threaded rod; 4021. Limiting groove; 403. Limiting block; 404. Connecting rod; 405. Moving groove; 5. Passive door opening and closing device; 501. Connecting rod; 502, fixing block; 503, spring; 504, guide rail; 505, slider; 6, hinge; 7, charging gun; 8, power wheel; 9, cable roller; 901, bearing; 902, rolling shaft; 903, cylindrical roller; 904, cable groove; 10, lead drive device; 11, charging pile operation panel; 12, charging cable; 13, tension sensor; 100, visual positioning system; 200, local offline AI model; 300, mobile and positioning device; 400, cloud AI large model. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The charging pile with an automatic wire-winding structure involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0027] Reference Figure 1 - Figure 2 The present invention provides a charging pile with an automatic wire-retracting structure, comprising a charging pile body 1, a charging pile operation panel 11 is installed on the front of the charging pile body 1, a sealing door 2 is installed on the side, an automatic wire-retracting device 4 is installed on the inner part of the charging pile body 1 near the back, an auxiliary charging bracket 3 is installed on the inner side of the charging pile body 1 near the sealing door 2, a passive switch door device 5 is installed between the auxiliary charging bracket 3 and the automatic wire-retracting device 4, near the sealing door 2, and a wire outlet hole 101 is provided above the sealing door 2. When in use, the charging operation can be completed through the charging pile operation panel 11, or operated on a mobile phone application;

[0028] In this embodiment, it is necessary to specifically explain that: there is a passive opening and closing door device 5 on both sides of the sealing door 2, and the bottom contact surface between the charging pile body 1 and the auxiliary charging bracket 3 is an inclined surface. When the automatic wire-winding device 4 releases the restriction on the auxiliary charging bracket 3, the auxiliary charging bracket 3 can rely on the action of gravity to open the sealing door 2 and move it to the outside of the charging pile body 1. At the same time, when there is water on the ground, the inclined surface can prevent a certain amount of water from entering the interior of the equipment, and has a certain waterproof function. The sealing door 2 has a certain sealing effect under normal conditions. Under normal circumstances, it can effectively protect the charging pile and prevent the internal auxiliary charging bracket 3, the automatic wire-winding device 4 and the passive opening and closing door device 5 from being wetted by rain.

[0029] The main difference between this embodiment and the prior art is that this embodiment uses an auxiliary charging bracket 3 and an automatic wire-receiving device 4, specifically the automatic wire-receiving device 4;

[0030] The above structure is the main structure of this embodiment, which solves the problem, and the charging pile operation panel 11 is an existing structure. The specific structure and connection method of the charging pile operation panel 11 are not described in detail in this embodiment. In addition, the specific structure of the sealing door 2 also belongs to the prior art. Therefore, this application does not make detailed limitations.

[0031] Reference Figure 3 The passive opening and closing door device 5 includes a hinge 6, one side of which is connected to the sealed door 2 and the other side is fixed to the back plate. One side of the connecting rod 501 is fixed to the sealed door 2 and the other side is connected to a slider 505. The slider 505 is located on the guide rail 504. One side of the spring 503 is connected to the fixed block 502 and the other side is connected to the slider 505. When the sealed door 2 moves outward, the slider 505 moves up and the connecting rod 501 pushes the sealed door 2 outward to open it, so that the auxiliary charging bracket 3 can leave the charging pile. At the same time, due to the action of the spring 503, the sealed door 2 returns to its initial position. When the auxiliary charging bracket 3 needs to enter the charging pile body 1, the sealed door 2 moves inward to cause the connecting rod 501 to act downward, and the slider 505 moves downward and compresses the spring 503. After the auxiliary charging bracket 3 completely enters the charging pile body 1, the spring 503 causes the slider 505 to return to its initial position, and at the same time, it is transmitted to the sealed door 2 through the connecting rod 501 so that the sealed door 2 can be closed.

[0032] In the present embodiment, it is necessary to specifically explain that: the specific connection method between the connecting rod 501 and the sealing door 2 and the slider 505 is a hinge connection, which is a prior art and is not described in detail in the present embodiment. The figure only shows a structural schematic diagram of the sealing door 2 on one side and the passive opening and closing door device 5. The structure of the sealing door 2 on the other side and the passive opening and closing door device 5 is basically the same as the working principle of the present embodiment. Therefore, the working principle of the sealing door 2 on the other side and the passive opening and closing door device 5 is no longer specifically described in the present embodiment.

[0033] Reference Figure 4- Figure 5 The auxiliary charging bracket 3 includes an elastic fixing rod 301, which is installed above the auxiliary charging bracket 3. The charging gun 7 is fixed in the middle by the elastic fixing rod 301. A rotating shaft 3022 is installed at the front end of the telescopic bracket 302, and a rotating groove 3021 is opened at the rear end. The rotating groove 3021 is sleeved on the rotating shaft 3022. A telescopic rotating shaft 304 is installed at the intersection of the telescopic bracket 302, and the traction line 303 is installed on the telescopic rotating shaft 304. A power wheel 8 is installed below the auxiliary charging bracket 3, and a lifting rod 305 is installed at the bottom of the auxiliary charging bracket 3. The telescopic rotating shaft 304 not only fixes the telescopic bracket 302, but also allows the telescopic bracket 302 to rotate around the telescopic rotating shaft 304 by a certain angle. At the same time, the rotating groove 3021 and the rotating shaft 3022 of the telescopic rotating shaft 304 can also allow the telescopic rotating shaft 304 to rotate by a certain angle. By moving the lifting rod 305 up and down, the height of the auxiliary charging bracket 3 can be adjusted as a whole.

[0034] In this embodiment, it is necessary to specifically explain that: the specific structure of the charging gun 7 and the power wheel 8 is the prior art, so this embodiment will no longer specifically explain the working principle of the charging gun 7. When the auxiliary charging bracket 3 is inside the charging pile body 1, it is acted upon by the charging gun 7 and the traction line 303, so that the auxiliary charging bracket 3 can stay on the inclined plane and remain stable. The power source of the lifting rod 305 and the power wheel 8 comes from the motor at the bottom of the auxiliary charging bracket 3, and the auxiliary charging bracket 3 can move in a controlled manner.

[0035] Reference Figure 6 - Fig. 9The automatic wire-winding device 4 includes a driving motor 401, a threaded rod 402 is installed on the driving motor 401, the threaded rod 402 passes through a connecting rod 404, a cable roller 9 is fixed on the connecting rod 404, a lead wire driving device 10 is installed on the threaded rod 402 close to the driving motor 401, a traction line 303 is wound around the lead wire driving device 10, a charging line 12 is wrapped around the cable roller 9 at a certain angle through a moving groove 405, a tension sensor 13 is installed at the end of the lower charging line 12, a limiting block 403 is located on the side of the moving groove 405 away from the driving motor 401, a limiting groove 4021 is provided on the threaded rod 402, a bearing 901 is installed in the middle of the cable roller 9, a cable groove 904 is provided on the outside, a rolling shaft 902 is installed in the center of the bearing 901, and a cylindrical roller 903 is installed in the bearing 901 in the circumferential direction of the rolling shaft 902. When charging operation is required, the driving The driving motor 401 acts to make the connecting rod 404 move toward the side of the driving motor 401, and the cable roller 9 reduces the constraint of the charging line 12 so that the charging line 12 can be released. The lead drive device 10 on the driving motor 401 moves synchronously, so that the constraint of the lead drive device 10 on the traction line 303 is synchronously reduced, so that the auxiliary charging bracket 3 can be released to the outside of the charging pile through the inclined surface by gravity. At the same time, the tension sensor 13 acts to adjust the working speed of the driving motor 401 in real time by measuring the force. When the charging line 12 needs to be retracted, the driving motor 401 acts in the opposite direction to make the connecting rod 404 move in the direction away from the driving motor 401, and the threaded rod 402 drives the lead drive device 10 to move. At the same time, the tension sensor 13 acts to adjust the working speed of the driving motor 401 in real time by measuring the force, so that the traction line 303 and the charging line 12 can be retracted.

[0036] In this embodiment, it is necessary to specifically explain that: the lead drive device 10 is installed on the side of the threaded rod 402 close to the drive motor 401. When the drive motor 401 moves, the lead drive device 10 will also run synchronously, and the release speed of the traction line 303 is consistent with the release speed of the charging line 12, so that the traction line 303 on the auxiliary charging bracket 3 is synchronously retracted and released with the charging line 12, so as to maintain the stability of the operation of the auxiliary charging bracket 3. The cable roller 9 close to the drive motor 401 will not move, and only the cable roller 9 connected by the connecting rod 404 will move when the drive motor 401 is working. Movement, the bearing 901 inside the cable roller 9 will drive the bearing 901 to rotate around the rolling axis 902 when the charging cable 12 moves. At the same time, due to the presence of the cylindrical roller 903, the bearing 901 only generates rolling friction on the charging cable 12, which is much smaller than the sliding friction. The force required to pull the charging cable 12 is relatively small. The limit groove 4021 and the limit block 403 are both protective devices, and the purpose is to prevent the drive motor 401 from moving incorrectly and causing the cable roller 9 to disengage from the moving groove 405. The tension sensor 13 is a PID regulator, which is a prior art. Therefore, this application does not make any detailed limitations.

[0037] Reference Fig.10 , the visual positioning system 100 is used to provide the location and model of the electric vehicle to the local offline AI model 200 of the local charging pile, the local offline AI model 200 of the local charging pile is used to match the electric vehicle model and plan the operation route and bracket height of the mobile and positioning device 300, the local offline AI model 200 of the local charging pile can be used in an offline state, and after connecting to the network, the usage data during the disconnection period is packaged together, the mobile and positioning device 300 is used to move the bracket and complete the positioning of the charging port according to the plan, and the cloud AI large model 400 is used to exchange each usage information and user feedback with the local offline AI model 200 of the local charging pile, continuously improve the local offline AI model 200 of the local charging pile and update and upgrade the local offline AI model 200 of the local charging pile.

[0038] Reference Fig.11 , S101: The visual positioning system takes a photo of the electric vehicle and locates the position of the electric vehicle;

[0039] S102: local offline AI large model processes electric vehicle model and location information;

[0040] S103: Moving the positioning device to move the bracket and the charging gun to the positioned position;

[0041] S104: The processed data is uploaded to the cloud AI big model;

[0042] S105: Whether the upload is successful;

[0043] S106: Improve the local offline AI data model based on user feedback and processing data.

[0044] Working principle of the present invention:

[0045] The main problem solved by this embodiment is: by designing a charging pile wire take-up device, the problem that the current fast charging pile wire take-up device requires too large a volume to be installed and arranged, and is inconvenient to use for charging is solved.

[0046] The specific steps are as follows: First, the owner of the electric vehicle requests charging through the charging pile operation panel 11 on the charging pile body 1. At this time, the visual positioning system 100 takes a photo of the electric vehicle and locates the electric vehicle. The local offline AI large model 200 processes the electric vehicle model and location information and sends the route to the mobile and positioning device 300. The driving motor 401 on the automatic wire-winding device 4 is started, so that the threaded rod 402 moves toward one side of the driving motor 401, driving the connecting rod 404 to move to the same side. The limiting groove 4021 provided on the threaded rod 402 can prevent the threaded rod 402 from moving too much, thereby protecting the driving motor 401. At this time, the cable roller 9 on the connecting rod 404 reduces the restraining force of the charging line 12. At the same time, due to the movement of the driving motor 401, the lead drive device 10 rotates, so that the restraining force of the lead drive device 10 on the traction line 303 is also reduced. The traction line 303 and the charging line 12 are connected to the auxiliary charging bracket 3. Since the auxiliary charging bracket 3 is on an inclined surface inside the charging pile body 1, the auxiliary charging bracket 3 can The auxiliary charging bracket 3 moves toward the sealed door 2 by gravity. When the auxiliary charging bracket 3 contacts the sealed door 2, the auxiliary charging bracket 3 applies an outward force to the sealed door 2. The hinge 6 installed on the sealed door 2 rotates to open the sealed door 2 outward, so that the passive door opening and closing device 5 works. Since the connecting rod 501 connects the sealed door 2 and the slider 505, when the sealed door 2 opens outward, the connecting rod 501 drives the slider 505 to move upward on the guide rail 504. Due to the restriction of the fixed block 502 on the spring 503, the spring 503 The upper part is compressed and the lower part is stretched. After a period of movement, the sealed door 2 is fully opened to allow the auxiliary charging bracket 3 to leave the wire outlet hole 101. At this time, the spring 503 acts to make the slider 505 return to the initial position after consuming the elastic potential energy after several up and down movements. At this time, since the connecting rod 501 connects the slider 505 and the sealed door 2, the sealed door 2 is also closed at the same time. Since the sealed door 2 is provided with a wire outlet hole 101, the traction line 303 and the charging line 12 can be released through the wire outlet hole 101 on the sealed door 2.

[0047] When the auxiliary charging bracket 3 leaves the charging pile body 1, the owner of the electric vehicle can assist the charging process through the auxiliary charging bracket 3. When the auxiliary charging bracket 3 is pulled outward, the tension sensor 13 inside the automatic take-up device 4 will monitor the change of tension in real time, thereby adjusting the running speed of the drive motor 401 to maintain the stability of the electric vehicle owner pulling the auxiliary charging bracket 3. Since a power wheel 8 is installed at the bottom of the auxiliary charging bracket 3, the auxiliary charging bracket 3 can be moved relatively easily. When the auxiliary charging bracket 3 reaches the charging position, the lifting rod 305 starts to lift or lower the auxiliary charging bracket 3 to a suitable height. At this time, the owner of the electric vehicle can use the charging gun 7 to insert it into the charging port of the electric vehicle, and the charging pile body 1 starts to charge the electric vehicle.

[0048] When the electric vehicle is fully charged, the owner of the electric vehicle pulls out the charging gun 7. At this time, the driving motor 401 moves in the reverse direction, causing the threaded rod 402 to move away from the driving motor 401. The threaded rod 402 drives the connecting rod 404 to make the cable roller 9 move in the direction away from the driving motor 401 on the moving groove 405, driving the charging line 12 to automatically reel in the wire. At this time, the lead drive device 10 also moves in the reverse direction, driving the traction line 303 to automatically reel in the wire. Since the cable roller 9 is equipped with a bearing 901, when the charging line 12 is in the cable groove 9 04, the bearing 901 composed of the rolling shaft 902 and the cylindrical roller 903 will only generate rolling friction, which will greatly reduce the friction between the cable roller 9 and the charging cable 12 when the charging cable 12 is automatically retracted, thereby reducing the load of the drive motor 401. When the automatic retracting device 4 automatically retracts the traction line 303 and the charging cable 12, the auxiliary charging bracket 3 is pulled by the traction line 303 and the charging cable 12 and continuously approaches the sealing door 2. During this process, the tension sensor 13 will detect the change of the tension and adjust the drive motor 401 in real time. When the auxiliary charging bracket 3 approaches the sealed door 2, the power wheel 8 first contacts the sealed door 2 to make the sealed door 2 rotate inward. At the same time, the connecting rod 501 close to the slider 505 moves downward to compress the springs 503 above and below the guide rail 504. Under the tensile force of the upper spring 503, the slider 505 moves downward along the guide rail 504, and the sealed door 2 is able to rotate inward to a certain angle through the passive door opening and closing device 5 and the hinge 6 until the auxiliary charging bracket 3 is completely stored in the charging pile body 1. The spring 503 acts to make the slider 505 rotate inward at a certain angle. After several up and down movements and consuming the elastic potential energy, it returns to the initial position. At this time, the charging pile body 1 completes the winding operation of the charging line 12 and ends the recovery of the auxiliary charging bracket 3. The electric vehicle charging process ends, and the local charging pile offline AI model 200 uploads the processed data. If the upload fails, the data is retained and waits for the next upload. After the upload is successful, the cloud AI large model 400 adjusts and optimizes the local charging pile offline AI model 200 according to the usage data and user feedback, and updates the charging pile offline AI model 200 at the appropriate time.

[0049] Secondly, it also solves the problem that the cables of electric vehicles are too thick and heavy during fast charging, which makes them inconvenient to use and may be dragged on the ground and damaged;

[0050] 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 protection scope of the present invention.

Claims

1. A charging pile with an automatic wire-retracting structure, comprising a charging pile body (1), characterized in that: The charging pile body (1) comprises a sealed door (2), an auxiliary charging bracket (3), an automatic wire take-up device (4) and a passive door opening and closing device (5); a charging pile operation panel (11) is installed on the front of the charging pile body (1), and a sealed door (2) is installed on the side; the automatic wire take-up device (4) is installed on the inside of the charging pile body (1) near the back; the auxiliary charging bracket (3) is installed on the inside of the charging pile body (1) near the side of the sealed door (2); the passive door opening and closing device (5) is installed between the auxiliary charging bracket (3) and the automatic wire take-up device (4), near the sealed door (2); a wire outlet hole (101) is opened above the sealed door (2); and the charging wire (12) is wrapped around the cable roller (9); The automatic wire-taking device (4) comprises a driving motor (401), a threaded rod (402) is mounted on the driving motor (401), the threaded rod (402) passes through a connecting rod (404), a cable roller (9) is fixed on the connecting rod (404), and a lead-wire driving device (10) is mounted on a side of the threaded rod (402) close to the driving motor (401); The passive door opening and closing device (5) comprises a hinge (6), one side of the hinge (6) is connected to the sealed door (2) and the other side is fixed to the back plate, one side of the connecting rod (501) is fixed to the sealed door (2) and the other side is connected to a slider (505), the slider (505) is located on the guide rail (504), and one side of the spring (503) is connected to the fixed block (502) and the other side is connected to the slider (505); The auxiliary charging bracket (3) comprises an elastic fixing rod (301), the elastic fixing rod (301) is installed above the auxiliary charging bracket (3), the charging gun (7) is fixed in the middle by the elastic fixing rod (301), a rotating shaft (3022) is installed at the front end of the telescopic bracket (302), a rotating groove (3021) is opened at the rear end, the rotating groove (3021) is sleeved on the rotating shaft (3022), a telescopic rotating shaft (304) is installed at the intersection of the telescopic bracket (302), and the traction line (303) is installed on the telescopic rotating shaft (304); The cable roller (9) comprises a bearing (901), the bearing (901) being installed in the middle of the cable roller (9), a cable groove (904) being provided on the outer side, a rolling shaft (902) being installed in the center of the bearing (901), and a cylindrical roller (903) being installed in the bearing (901) in the circumferential direction of the rolling shaft (902); A power wheel (8) is installed below the auxiliary charging bracket (3), and a lifting rod (305) is installed at the bottom of the auxiliary charging bracket (3); The traction line (303) is wound around the lead drive device (10), the charging line (12) is wound around the cable roller (9) at a certain angle through the movable groove (405), a tension sensor (13) is installed at the end of the lower charging line (12), the limiting block (403) is located on the side of the movable groove (405) away from the drive motor (401), and a limiting groove (4021) is provided on the threaded rod (402).

2. The charging pile with automatic wire-retracting structure according to claim 1, characterized in that: The visual positioning system (100) used by the charging pile body (1) is used to provide the location and model of the electric vehicle to the charging pile local offline AI model (200); the local charging pile local offline AI model (200) is used to match the electric vehicle model and plan the movement and positioning device (300) running route and bracket height; the local charging pile local offline AI model (200) can be used in an offline state and package the usage data during the disconnection period after networking; the movement and positioning device (300) is used to move the bracket and complete the positioning of the charging port according to the plan; the cloud AI large model (400) is used to exchange each usage information and user feedback with the local charging pile local offline AI model (200), continuously improve the local charging pile local offline AI model (200) and update and upgrade the local charging pile local offline AI model (200).

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