AC charging pile with automatic wire arrangement function

Abstract

The present application relates to the technical field of charging pile, in particular to an alternating current charging pile with automatic wire arrangement function, which comprises a body, a cable and a charging gun, the charging gun is connected with the body through the cable, a gun stock is rotatably connected to the body, the gun stock is used for placing the charging gun, a motor connected with the gun stock is arranged on the body, a detection frame is arranged below the body, pressure plates are arranged on both sides of the detection frame, an avoiding groove is arranged between the detection frame and the two pressure plates, a sensor one is arranged on the detection frame at the pressure plate, a release disc is rotatably installed on the body, the release disc is connected with the main shaft of the motor through a transmission part, the detection frame is slidably installed on the body, and a connecting rod is connected between the release disc and the detection frame. The present application detects the cable torsion, controls the rotation of the charging gun to release the torsion cable, thereby avoiding the stress generated by the cable torsion, and ensuring the service life of the cable and the safety of the charging pile.

Description

Technical Field

[0001] This invention relates to the field of charging pile technology, specifically to an AC charging pile with automatic cable management function. Background Technology

[0002] In daily use, the management of charging cables at AC charging stations has long been a pain point for users. Since charging cables are typically several meters long, users often carelessly leave them lying around or dragging them on the ground after charging. This results in disorderly cable placement, easy crushing and wear, which not only affects the cleanliness of the charging area but also poses safety hazards such as insulation aging and electric shock. To avoid these problems, patent application number CN202321106010.4, entitled "A Charging Cable Management Device for Charging Stations," provides a solution. This patent uses a winding device, driven by a motor, to rotate multiple cable management posts to wind up the cables, thus preventing the cables from being exposed and causing dirt and aging.

[0003] However, during the use of the charging gun, the cable is inevitably subjected to human twisting. When the user inserts the charging gun into the stock, the cable is often already twisted one or more times. In this state, if the winding device starts winding, the twisted cable will be subjected to the superposition of bending and torsional stresses when it is forcibly wound and wound. This causes the conductor and insulation layer inside the cable to accelerate metal fatigue and wear, and may also cause a "snake-like bending" phenomenon due to the inability to release the torque. This can result in bulging of the cable surface and deformation of the sheath, or even core breakage or insulation failure, seriously endangering charging safety.

[0004] Therefore, to avoid torsional stress caused by cable twisting during cable winding, an AC charging station with automatic cable management function is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an AC charging pile with automatic cable management function. This invention detects cable twisting and controls the rotation of the charging gun to release the twisted cable, thereby avoiding stress caused by cable twisting and ensuring the service life of the cable and the safety of the charging pile.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An AC charging station with automatic cable management function includes a main body, a cable, and a charging gun. The charging gun is connected to the main body via the cable. A gunstock is rotatably connected to the main body for holding the charging gun. A motor connected to the gunstock is provided on the main body. A detection frame is provided below the main body. Pressure plates are provided on both sides of the detection frame. An avoidance groove is provided between the two pressure plates. A sensor is provided on the detection frame at the pressure plate.

[0007] When the charging station is tidying up the cables, if the cables are twisted, they will sway to one side under their own torque. At this time, the cables will be squeezed against the pressure plate, which will trigger the sensor to rotate the motor, thereby driving the charging gun to rotate 360°. If the cables are still twisted, the motor will continue to be triggered to rotate until the cables are no longer twisted, thus avoiding stress caused by cable twisting and ensuring the service life of the cables and the safety of the charging station.

[0008] Preferably, a release disc is rotatably mounted on the main body, the release disc is connected to the main shaft of the motor through a transmission component, the detection frame is slidably mounted on the main body, and a connecting rod is connected between the release disc and the detection frame, with both ends of the connecting rod rotatably connected to the release disc and the detection frame, respectively.

[0009] When the charging gun rotates, the wound cable needs to be released to avoid cable pulling. Frequent winding and unwinding of the cable causes repeated bending, leading to a rapid decrease in mechanical strength and a reduction in cable lifespan. Therefore, when the motor rotates, the transmission component drives the release disc to rotate, and the connecting rod drives the detection frame to move up and down, thereby naturally releasing the taut cable and causing it to bend under gravity. This reduces bending stress and ensures the cable's lifespan. Furthermore, the synchronous release of the cable by the motor ensures the synchronization between cable release and gun stock rotation, preventing cable damage caused by failure to release the cable.

[0010] Preferably, a centering frame is provided below the detection frame. The centering frame has an arc-shaped surface in the middle and centering inclined surfaces on both sides. The centering inclined surfaces are inclined upwards from the middle of the centering frame towards the edge.

[0011] The centering frame is designed to guide the cable to the center of the frame during cable release, aligning it with the clearance slot. When the detection frame moves down, the centering frame no longer supports the cable. If the cable is still twisted at this point, it will sway under the torque. However, when the cable is no longer twisted, the support of the centering frame prevents it from swinging due to the rotation of the stock. This prevents the cable from swinging under the pressure plate after the detection frame moves down, thus avoiding false triggering of the sensor due to cable sway when the cable is not twisted, and ensuring the feasibility of cable management.

[0012] Preferably, the motor is provided with a flat key, the stock is provided with a keyway, the flat key is located inside the keyway, and the width of the keyway is 1-2 cm greater than the width of the flat key.

[0013] Because of the height difference between the centering frame and the detection frame, the cable cannot be supported by the centering frame after twisting and releasing during the rotation of the gunstock. At this time, the cable will still sway, causing the sensor to trigger falsely. However, the motor is connected to the keyway of the gunstock through a flat key, and the width of the keyway is greater than the width of the flat key. This allows the gunstock to reset before the motor has completed one revolution during rotation due to gravity. This ensures that the gunstock stops rotating before the detection frame is fully reset. This ensures that the centering frame always supports the cable, thus preventing the gunstock from still rotating when the cable is not supported by the centering frame, which would cause the cable to fall and sway, affecting the detection of cable twisting.

[0014] Preferably, a locking block is slidably connected to the main body, and the locking block is elastically connected to the main body. The stock is provided with a locking groove that cooperates with the locking block. The locking groove is a non-rotating structure. The locking block is provided with a guide groove. The guide groove is provided with a recessed part. The recessed part is recessed towards the side away from the stock. Guide slopes are provided on both sides of the recessed part. The main shaft of the motor is provided with a guide block. The guide block is located inside the guide groove.

[0015] The locking block allows the stock to be unlocked and secured when the motor rotates, preventing the charging gun from falling due to stock wobbling. The elastic connection of the locking block allows it to automatically lock the stock when it is reset by gravity, preventing the stock from continuing to swing due to inertia, which could cause the cable to swing and affect the accuracy of the detection.

[0016] Preferably, a reset plate is elastically connected to the stock, and a detection plate is rotatably mounted on the reset plate. The detection plate is elastically connected to the reset plate, and multiple ratchet grooves are formed on the detection plate. A ratchet tooth that mates with the ratchet grooves is elastically connected to the stock. A pressing block is elastically connected to the stock at the locking groove. Multiple rotating blocks are provided on the detection plate, and the pressing block mates with the rotating blocks. The pitch angle of the rotating block is equal to the fillet angle of the ratchet groove. The pressing block and the rotating block are staggered, and the staggered angle is less than half of the fillet angle of the ratchet groove. Both sides of the ratchet tooth are inclined surfaces. One side of the rotating block is an inclined surface, and the other side is a vertical plane. A contact plate is provided on the detection plate, and a second sensor is provided on the stock. The second sensor is located on the rotation path of the contact plate.

[0017] The detection plate is designed so that when the locking block enters the locking groove, it pushes the pressing block and the inclined surface of the rotating block into contact, causing the detection plate to rotate. The ratchet groove and ratchet teeth form a unidirectional rotation structure, ensuring that the detection plate can only rotate in one direction and cannot be reset by the elastic force. When the contact plate contacts the second sensor, it can trigger the second sensor to control the motor to stop rotating, thus detecting the number of rotations of the stock. This prevents the motor from accidentally starting and causing the stock to rotate continuously, which could lead to the cable being twisted and broken. The reset plate is designed so that when the charging gun is pulled out, the detection plate can be reset by the elastic force, causing the ratchet teeth to disengage from the ratchet groove. This releases the detection plate, allowing the number of rotations of the gunstock to be recounted after the charging gun is removed. Even after the charging gun is removed and installed, the motor can still rotate normally when the cable twists again. The pitch angle of the rotating block is equal to the fillet angle of the ratchet. The pressing block and the rotating block are staggered, with the stagger angle being less than half the fillet angle of the ratchet. When the pressing block rotates through the rotating block, the pitch angle of the rotating block is less than twice the pitch angle of the ratchet. At this time, the ratchet pushes the detection plate to rotate, aligning the pressing block with the next rotating block, so that when the pressing block is pushed again, it can still push the detection plate to rotate.

[0018] Preferably, the testing frame is provided with a movable groove, and the pressure plate is slidably installed inside the movable groove.

[0019] The pressure plate is slidably installed inside the movable groove, allowing it to fall under gravity without contacting the sensor. This prevents vibration from causing the sensor to malfunction and control the motor, further improving the accuracy of cable twisting.

[0020] Preferably, the end of the locking block is provided with a chamfer.

[0021] The chamfering design guides the locking block into the locking groove, thus avoiding any gaps that could prevent the locking block from entering the groove and cause the stock to swing due to inertia, affecting the accuracy of cable torsion detection.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting sensors on the testing frame to detect whether the cable is twisted, and controlling the motor to release the twisted cable, stress caused by cable twisting is avoided, thus ensuring the service life of the cable and the safety of the charging pile.

[0023] 2. The test frame is moved up and down synchronously by the motor, so that the cable remains in a relaxed state during the cable twisting and releasing process. This avoids the problem of cable damage due to stress fatigue caused by repeated winding and unwinding of the winding device. The center frame on the test frame can prevent the cable from shaking after twisting and releasing, which would affect the accuracy of the cable twisting.

[0024] 3. By making the keyway width of the stock greater than the width of the motor's keyway, the stock can fully reset under gravity before the testing frame is fully reset. This ensures that the centering frame always supports the cable, thus preventing cable swaying from affecting the accuracy of cable torsion detection. The elastic locking block, disengaged from the locking groove by motor rotation, ensures normal rotation of the stock during operation and prevents it from swaying due to inertia after reset, further improving detection accuracy. Furthermore, the locking block, once in the locking groove, also secures the stock, preventing the charging gun from falling due to wind-induced swaying. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the detection seat of the present invention when it is moved to the bottom. Figure 3 A partial cross-sectional view of the structure of the present invention when the detection seat is not reset for stock reset; Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 for Figure 3 Enlarged view of a section at point B in the middle; Figure 6 This is a partial sectional view of the structure of the present invention with the main body removed; Figure 7 for Figure 6 Enlarged view of a section at point C; Figure 8 This is a schematic diagram of the structure of the reset plate and the detection plate of the present invention; Figure 9 This is a partial structural cross-sectional view of the detection frame and centering frame of the present invention.

[0026] In the diagram: 1. Body; 2. Cable; 3. Charging gun; 4. Stock; 5. Motor; 6. Detection frame; 7. Pressure plate; 8. Clearance groove; 9. Sensor 1; 10. Release disc; 11. Connecting rod; 12. Centering frame; 13. Arc surface; 14. Centering slope; 15. Flat key; 16. Keyway; 17. Locking block; 18. Locking groove; 19. Guide groove; 191. Recess; 192. Guide slope; 20. Reset plate; 21. Detection plate; 22. Ratchet; 23. Ratchet; 24. Pressing block; 25. Rotating block; 26. Sensor 2; 27. Movable groove; 28. Chamfer; 29. ​​Contact plate; 30. Transmission component; 301. Gear; 302. Gear ring; 31. Guide block. Detailed Implementation

[0027] Please see Figures 1 to 9 This invention provides an AC charging pile with automatic cable management function, the technical solution of which is as follows: Please refer to the following for an AC charging station with automatic cable management function. Figures 1 to 5 as well as Figure 9 The system includes a main body 1, a cable 2 connected to a charger, a stock 4 rotatably mounted on the main body 1, a charging gun 3 mounted on the stock 4, a cable winding device inside the main body 1, a motor 5 connected to the stock 4, a detection frame 6 slidably mounted below the main body 1, pressure plates 7 on both sides of the detection frame 6, a clearance groove 8 between the two pressure plates 7, a sensor 9 located at the pressure plates 7 on the detection frame 6, and a release disc 10 rotatably mounted on the main body 1. The release disc 10 is connected to the main shaft of the motor 5 via a transmission component 30, which includes a gear 301 mounted on the main shaft of the motor 5. A gear ring 302 is mounted on the release disc 10, which meshes with a gear 301. The detection frame 6 is slidably mounted on the body 1. A connecting rod 11 connects the release disc 10 and the detection frame 6, with both ends of the connecting rod 11 rotatably connected to the release disc 10 and the detection frame 6, respectively. When the charging pile is arranging the cable, the cable is wound up by a winding device. During the winding process, if the cable 2 is twisted, the cable 2 will sway to one side under its own torque. At this time, during cable arrangement, the cable 2 will squeeze against the pressure plate 7, thereby triggering the sensor 9 to rotate the motor 5, which in turn drives the gun stock 4 to rotate the charging gun 3 360°. During the rotation of the motor 5, the motor 5 The release disc 10 is rotated by gear 301 and gear ring 302, which in turn drives the detection frame 6 to move up and down via connecting rod 11, so that the cable 2 is no longer taut. This ensures that the gun stock 4 can drive the charging gun 3 to rotate. After the motor 5 rotates 360°, if the cable 2 is still twisted, the motor 5 is triggered to rotate again until the cable 2 is no longer twisted, thus avoiding stress caused by the twisting of the cable 2 and ensuring the service life of the cable 2 and the safety of the charging pile. By controlling the detection frame 6 to move up and down synchronously, the taut cable 2 is naturally released, causing the cable 2 to bend under the action of gravity. This controls the winding of the cable 2 relative to the rotation of the charging gun 3. The device releases cable 2 in a way that minimizes bending stress, thus ensuring the cable 2's lifespan. The synchronous release of cable 2 via motor 5 ensures synchronization between cable 2 release and gunstock 4 rotation, preventing cable 2 from being pulled and damaged due to failure to release. The detection frame 6 has a movable groove 27, and a pressure plate 7 is slidably installed inside the movable groove 27. This slidable installation of the pressure plate 7 allows it to fall under gravity, preventing contact with sensor 9. This avoids vibration causing sensor 9 to falsely trigger and control motor 5 rotation, further improving the accuracy of cable torsion.

[0028] Please see Figures 2 to 7A centering frame 12 is provided below the detection frame 6. The centering frame 12 has an arc-shaped surface 13 in the middle and centering inclined surfaces 14 on both sides. The centering inclined surfaces 14 slope upwards from the middle of the centering frame 12 towards the edge. When the detection frame 6 moves down, the centering frame 12 no longer supports the cable 2. If the cable 2 is still twisted at this time, the cable 2 will swing again under the torque. When the cable 2 is no longer twisted, due to the support of the centering frame 12, the cable 2 will not swing due to the rotation of the stock 4. This prevents the cable 2 from swinging below the pressure plate 7 after the detection frame 6 moves down, thus avoiding the sensor 9 from being falsely triggered due to the swaying of the cable 2 when it is not twisted, thereby ensuring the feasibility of cable management. A flat key 15 is provided on the motor 5, and the stock The stock 4 is provided with a keyway 16, and a flat key 15 is located inside the keyway 16. The width of the keyway 16 is 2cm wider than the width of the flat key 15. When the flat key 15 pushes the stock 4 to rotate, the flat key 15 and the side of the keyway 16 on the side of the rotation direction are in contact. When the stock 4 rotates 180°, the stock 4 rotates under the action of gravity. At this time, the other side is in contact with the flat key 15, so that the stock 4 can complete a 360° rotation before the motor 5 has rotated 360°. At this time, the detection frame 6 has not yet moved to the lowest position, thereby compensating for the height difference between the centering frame 12 and the detection frame 6. After the stock 4 stops rotating, the cable 2 is lifted by the centering frame 12 and then lowered, so that the cable 2 will not produce any damage during this process. Due to inertia, the stock 4 remains rotating, causing the cable to fall and resulting in shaking, which affects the detection of cable twisting. A locking block 17 is slidably connected to the main body 1, and the locking block 17 is elastically connected to the main body 1. The stock 4 has a locking groove 18 that cooperates with the locking block 17. The locking groove 18 is a non-rotating structure. The locking block 17 has a guide groove 19, and the guide groove 19 has a recess 191. The recess 191 is recessed away from the side of the stock 4. Guide slopes 192 are provided on both sides of the recess 191. A guide block 31 is provided on the main shaft of the motor 5. The guide block 31 is located inside the guide groove 19. When the motor 5 initially rotates and has not yet contacted the detection side wall, the guide block 31 presses the locking block 17 through the guide slopes 192, thereby locking the cable. When block 17 disengages from lock groove 18, motor 5 can drive stock 4 to rotate. When guide block 31 rotates to recess 191, lock block 17 pops out under elastic force and enters lock groove 18 to lock stock 4 when lock block 17 is aligned with lock groove 18. Locking stock 4 with lock block 17 can prevent the charging gun 3 from falling due to wind blowing, and can also prevent stock 4 from continuing to swing due to inertia, which would cause cable 2 to swing and affect the accuracy of detection. The chamfer 28 can guide lock block 17 into lock groove 18, thereby avoiding the existence of a gap, which would prevent lock block 17 from entering lock groove 18, causing stock 4 to swing due to falling inertia and affecting the accuracy of cable torsion detection.

[0029] Please see Figures 2 to 8A reset plate 20 is elastically connected to the stock 4. A detection plate 21 is rotatably mounted on the reset plate 20. The detection plate 21 is elastically connected to the reset plate 20. Multiple ratchet grooves 22 are provided on the detection plate 21. A ratchet tooth 23 that mates with the ratchet groove 22 is elastically connected to the stock 4. A pressing block 24 is elastically connected to the stock 4 at the locking groove 18. Multiple rotating blocks 25 are provided on the detection plate 21. The pressing block 24 mates with the rotating blocks 25. The circumferential angle of the rotating block 25 is 5°, and the corner radius of the ratchet groove 22 is 5°. The pressure block 24 and the rotating block 25 are staggered by an angle of 1°. Both sides of the ratchet 23 are inclined surfaces, and one side of the rotating block 25 is an inclined surface while the other side is a vertical plane. The detection plate 21 is equipped with a contact plate 29, and the stock 4 is equipped with a second sensor 26, which is located on the rotation path of the contact plate 29. When the locking block 17 enters the locking groove 18, the locking block 17 pushes the pressure block 24 to contact the inclined surface of the rotating block 25, thereby causing the detection plate 21 to rotate. The ratchet groove 22 and the ratchet 23 form a unidirectional rotation structure. The structure allows the detection plate 21 to rotate only in one direction, preventing it from resetting under the action of elastic force. When the contact plate 29 contacts the second sensor 26, it can trigger the second sensor 26 to control the motor 5 to stop rotating, thereby detecting the number of rotations of the stock 4. This avoids the problem of the motor 5 accidentally starting and causing the stock 4 to rotate continuously, resulting in the cable 2 being twisted and broken. When the squeezing block 24 squeezes the rotating block 25, the squeezing block 24 and the rotating block 25 are misaligned by an angle of 1°, causing the detection plate 21 to rotate 4°. When the squeezing block 24 retracts, the ratchet 23 pops out and pushes the detection plate 21 to rotate 1°, so that the next rotating block 25 is partially aligned with the squeezing block 24. When the charging gun 3 is pulled out, the detection plate 21 can be reset under the action of elastic force, causing the ratchet 23 to disengage from the ratchet groove 22, thereby releasing the detection plate 21. Therefore, when the charging gun 3 is removed, the number of rotations of the stock 4 can be recounted. That is, after the charging gun 3 is removed and installed, the motor 5 can still rotate normally even if the cable twists again.

[0030] Working principle: Please refer to Figures 1 to 9When the charging station is organizing the cables, the cable is wound up by a winding device. During the winding process, if the cable 2 is twisted, it will sway to one side under its own torque. The cable 2 will squeeze the pressure plate 7, which will trigger the motor 5 to rotate and control the winding device to stop winding. This will drive the gunstock 4 to rotate the charging gun 3 360°. During the rotation of the motor 5, the guide block 31 squeezes the locking block 17 through the guide slope 192, which will cause the locking block 17 to disengage from the locking groove 18. Then, the flat key 15 and the keyway 16 are attached to the side of the keyway on the side of the rotation direction, thereby pushing the gunstock 4 to rotate. This is achieved through the gear 301 and the gear ring. 302 drives the release disc 10 to rotate, which in turn drives the detection frame 6 to move up and down via the connecting rod 11, so that the cable 2 is no longer taut, ensuring that the stock 4 can drive the charging gun 3 to rotate. When the stock 4 rotates 180°, the stock 4 rotates under the action of gravity. At this time, the other side is in contact with the flat key 15, so that the stock 4 can rotate 360° when the motor 5 has not rotated 360°, so that the detection frame 6 has not fallen to the lowest point. At this time, the centering frame 12 still supports the cable 2. When the stock 4 rotates 360°, the guide block 31 rotates to the recess 191. At this time, the locking block 17 enters the locking groove 18 under the action of the spring, thus Lock the stock 4. At this time, the motor 5 continues to rotate until the detection frame 6 moves to the lowest point. During this process, the center frame 12 always supports the cable 2, and the stock 4 stops rotating. At this time, the cable 2 will not generate swaying inertia. When the detection frame 6 moves to the lowest point, the winding device winds up again. If the cable 2 is still twisted, the above operation is repeated until the twist of the cable 2 is completely released. When the locking block 17 enters the locking groove 18, the locking block 17 pushes the pressing block 24 to move, so that the pressing block 24 presses the inclined surface of the rotating block 25, thereby pushing the detection plate 21 to rotate 4°. When the pressing block 24 retracts, the ratchet 23 pops out and pushes... The detection plate 21 rotates 1°, but due to the restriction of the ratchet 23, the detection plate 21 cannot be reset under the action of the spring force, so the detection plate 21 rotates in one direction. After the detection plate 21 rotates 3 times, the contact plate 29 presses the sensor 26, so that the sensor 26 controls the motor 5 not to start, thereby avoiding the problem that the motor 5 will drive the gunstock 4 to rotate continuously and cause the cable 2 to be twisted and broken. When the charging gun 3 is pulled out, the detection plate 21 resets under the action of the spring force, so that the ratchet 23 disengages from the ratchet groove 22, thereby releasing the detection plate 21. Therefore, when the charging gun 3 is removed, the number of rotations of the gunstock 4 is counted again.

[0031] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. An AC charging pile with automatic cable management function, characterized in that, The device includes a main body (1), a cable (2), and a charging gun (3). The charging gun (3) is connected to the main body (1) via the cable (2). A gunstock (4) is rotatably connected to the main body (1). The gunstock (4) is used to hold the charging gun (3). A motor (5) connected to the gunstock (4) is provided on the main body (1). A detection frame (6) is provided below the main body (1). Pressure plates (7) are provided on both sides of the detection frame (6). An clearance groove (8) is provided between the two pressure plates (7) on the detection frame (6). A sensor (9) is provided at the pressure plate (7) on the detection frame (6).

2. The AC charging pile with automatic cable management function according to claim 1, characterized in that, A release disc (10) is rotatably mounted on the main body (1). The release disc (10) is connected to the main shaft of the motor (5) through a transmission component (30). The detection frame (6) is slidably mounted on the main body (1). A connecting rod (11) is connected between the release disc (10) and the detection frame (6). The two ends of the connecting rod (11) are rotatably connected to the release disc (10) and the detection frame (6) respectively.

3. An AC charging pile with automatic cable management function according to claim 2, characterized in that, The detection frame (6) is provided with a centering frame (12) below it. The centering frame (12) has an arc-shaped surface (13) in the middle and centering inclined surfaces (14) on both sides. The centering inclined surfaces (14) are inclined upwards from the middle of the centering frame (12) towards the edge.

4. An AC charging pile with automatic cable management function according to claim 3, characterized in that, The motor (5) is provided with a flat key (15), and the stock (4) is provided with a keyway (16). The flat key (15) is located inside the keyway (16), and the width of the keyway (16) is 1-2 cm greater than the width of the flat key (15).

5. An AC charging pile with automatic cable management function according to claim 4, characterized in that, A locking block (17) is slidably connected to the main body (1), and the locking block (17) is elastically connected to the main body (1). The stock (4) is provided with a locking groove (18) that cooperates with the locking block (17). The locking groove (18) is a non-rotating structure. A guide groove (19) is provided on the locking block (17). A recess (191) is provided on the guide groove (19). The recess (191) is recessed towards the side away from the stock (4). Guide slopes (192) are provided on both sides of the recess (191). A guide block (31) is provided on the main shaft of the motor (5). The guide block (31) is located inside the guide groove (19).

6. An AC charging pile with automatic cable management function according to claim 5, characterized in that, A reset plate (20) is elastically connected to the stock (4). A detection plate (21) is rotatably mounted on the reset plate (20). The detection plate (21) is elastically connected to the reset plate (20). The detection plate (21) has multiple ratchet grooves (22). A ratchet tooth (23) that mates with the ratchet grooves (22) is elastically connected to the stock (4). A pressing block (24) is elastically connected to the stock (4) at the locking groove (18). A multiple rotating block (25) is provided on the detection plate (21). The pressing block (24) and the rotating block (25) are elastically connected to each other. 5) In coordination, the circumferential angle of the rotating block (25) is equal to the fillet angle of the ratchet (22). The squeezing block (24) and the rotating block (25) are staggered, and the stagger angle is less than half of the fillet angle of the ratchet (22). Both sides of the ratchet (23) are inclined surfaces. One side of the rotating block (25) is an inclined surface, and the other side is a vertical plane. The detection plate (21) is provided with a contact plate (29), and the stock (4) is provided with a sensor two (26). The sensor two (26) is set on the rotation path of the contact plate (29).

7. An AC charging pile with automatic cable management function according to claim 2, characterized in that, The testing frame (6) is provided with a movable groove (27), and the pressure plate (7) is slidably installed inside the movable groove (27).

8. An AC charging pile with automatic cable management function according to claim 5, characterized in that, The locking block (17) has a chamfer (28) at its end.

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