Charging pile capable of preventing cable from being pulled and charging gun cable recycling method

Abstract

The invention discloses a charging pile capable of preventing a cable from being pulled and a charging gun cable recycling method, the charging pile comprises a charging pile body, a folding arm mounted at the top of the charging pile body and a cable winding accessory, the folding arm is at least provided with one roller, and the peripheral surface of the roller is provided with an annular groove for allowing a cable part to be embedded in; the folding arms are folded and unfolded to drive the rollers to move up and down corresponding to the charging pile body; a baffle is arranged on the charging pile body corresponding to the moving path of the roller, a button is arranged on the baffle, when the roller moves upwards in place, the roller extrudes the cable and the baffle, the cable is limited to move, the button is triggered, and after the button is triggered, the cable winding accessory stops winding. Damage of the charging gun caused by accidental pulling of the charging gun cable by a user during driving can be reduced.

Description

Technical Field

[0001] This invention relates to charging piles, specifically to charging piles with cable anti-pull protection and a method for recycling charging gun cables. Background Technology

[0002] The number of new energy vehicles powered by batteries is increasing, which in turn increases the demand for charging for these vehicles, especially fast charging stations. These fast charging stations typically use high-power vertical charging piles and are often unsupervised, making them prone to damage.

[0003] One existing problem is that the charging gun cable has been lengthened to accommodate more vehicle types (due to different charging port locations). This cable is heavy and long, making it difficult for users to reposition it after charging. If the parking space is empty, some drivers may turn around, potentially snagging the cable and causing it to be pulled, damaging the charging station. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a charging pile with cable anti-pull and a charging gun cable recycling method, which can reduce the damage to the charging gun caused by users accidentally pulling the charging gun cable while driving.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A charging pile with cable anti-pull protection, comprising a charging pile body, a folding arm installed on the top of the charging pile body, and a cable winding accessory. The folding arm is provided with at least one roller, and the outer circumferential surface of the roller is provided with an annular groove for the cable to be partially embedded. The folding arm drives the roller to move vertically in relation to the charging pile body by folding and unfolding. A baffle is provided on the charging pile body along the path of the roller's movement, and a button is provided on the baffle. When the roller moves upward to its position, the roller squeezes the cable against the baffle, restricting the cable's movement and triggering the button. After the button is triggered, the cable winding accessory stops winding.

[0006] As a further improvement of the present invention, the folding arm includes at least a swing arm, a drive arm, and a shock absorber. The drive arm and the swing arm are rotatably connected to the charging pile body. The two ends of the shock absorber are rotatably connected to the drive arm and the swing arm, respectively. The drive arm extends and retracts, driving the shock absorber to move and forming a folding engagement with the shock absorber. When the shock absorber and the drive arm are folded relative to each other, the rollers are driven to move upward, and vice versa, the rollers are driven to move downward.

[0007] As a further improvement of the present invention, the cable winding accessory includes an electric reel mounted on the charging pile body and a pressure detection component located below the reel. The electric reel starts winding when the charging gun is inserted back into the charging pile body. After the pressure detection component is separated from the cable as the electric reel winds up, the drive arm drives the shock absorber to fold and lift the cable, and the baffle restricts the movement of the cable. The electric reel stops winding when the cable presses the button.

[0008] As a further improvement of the present invention, the pressure detection component is installed on the charging pile body below the position corresponding to the insertion of the charging gun, and is provided with an inclined surface for abutting the cable. The pressure detection determines whether the cable abuts the inclined surface. When the electric reel winds up the cable until the cable separates from the inclined surface, the drive arm drives the shock absorber to cooperate in folding.

[0009] As a further improvement of the present invention, a connecting seat is fixedly connected to the charging pile body at the position corresponding to the drive arm, and a first snap-fit ​​component is provided on the connecting seat; the swing arm is provided with a second snap-fit ​​component, and when the drive arm and the shock absorber are folded into place, the first snap-fit ​​component and the second snap-fit ​​component are elastically snapped together.

[0010] As a further improvement of the present invention, a trigger switch is provided on the first or second latching member. When the first and second latching members are latched together, the trigger switch is triggered, and the drive arm stops driving.

[0011] A method for recycling charging gun cables is also provided, comprising the following steps: S1: After the charging gun is reset to the charging pile body, the winding mechanism is triggered to start the cable winding action; S2: The detection component monitors the cable winding status in real time to determine whether the cable has fallen off the preset support position; S3: When the detection component confirms that the cable has left the preset support position, the drive folding mechanism drives the cable guide to move along the up and down direction of the charging pile body, so that the cable moves synchronously with the guide on the folding mechanism. S4: When the guide moves to the preset limit position, the cable is squeezed by the cooperation between the guide and the limit structure to restrict its movement and trigger a stop signal; S5: After receiving the stop signal, the winding mechanism stops winding, the folding mechanism locks and positions itself through the snap-fit ​​structure, the drive mechanism stops moving, and the cable is retracted.

[0012] As a further improvement of the present invention, the monitoring method of the detection component includes at least one of pressure monitoring and contact monitoring, the preset support position is the abutment support state of the cable and the detection component, and the stop signal is generated by mechanical extrusion trigger or induction trigger.

[0013] As a further improvement of the present invention, the locking and positioning process of the folding mechanism includes: when the folding mechanism is folded to a preset position, the first locking structure and the second locking structure form an elastic locking, and the positioning switch is triggered simultaneously. The positioning switch sends a stop command to the driving mechanism, so that the driving mechanism terminates the driving of the folding mechanism.

[0014] As a further improvement of the present invention, the guide member carries the cable through the limiting structure on the outer peripheral surface, and the cable is fixed by the lifting and squeezing of the guide member and the limiting structure, so that the cable is in a tensile-resistant storage state, reducing the damage to the cable and charging pile caused by external pulling force.

[0015] The beneficial effects of this invention are that the folding arm drives the roller and the baffle to squeeze and limit the recovered cable. At the same time, the automatic winding control of the cable winding accessory and the lifting effect of the folding arm on the cable can effectively improve the situation where users accidentally pull the charging gun cable while driving, and reduce the risk of damage to the cable and charging pile caused by pulling. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention (folding arm retracted); Figure 2 This is a front view schematic diagram of the overall structure of the present invention (folding arm retracted). Figure 3 This is a side view of the overall structure of the present invention (folding arm retracted). Figure 4 This is a schematic diagram of the unfolded state of the folding arm of the present invention; Figure 5 This is a schematic diagram of the folding arm in the retracted state of the present invention; Figure 6 This is a schematic diagram of the folding arm in the unfolded state and the cable disconnection pressure detection component of the present invention. Figure 7 This is a schematic diagram of the folding arm driving the cable to retract in the present invention.

[0017] Reference numerals: 100, charging pile body; 110, folding arm; 111, swing arm; 112, drive arm; 113, shock absorber; 120, cable winding accessory; 121, electric reel; 122, pressure detection component; 1221, inclined plane; 130, roller; 131, annular groove; 140, baffle; 141, button; 150, connecting seat; 160, first snap-fit ​​connector; 170, second snap-fit ​​connector; 200, charging gun. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0019] Reference Figure 1-7As shown, this embodiment provides a charging pile with cable anti-pull protection, including a charging pile body 100, a folding arm 110 installed on the top of the charging pile body 100, and a cable winding attachment 120. The folding arm 110 is provided with at least one roller 130, and the outer peripheral surface of the roller 130 is provided with an annular groove 131 for the cable to be partially embedded. The folding arm 110 drives the roller 130 to move in the vertical direction corresponding to the charging pile body 100 by folding and unfolding. A baffle 140 is provided on the charging pile body 100 along the path of the roller 130. A button 141 is provided on the baffle 140. When the roller 130 moves upward to the position, the roller 130 squeezes the cable against the baffle 140, restricting the cable movement and triggering the button 141. After the button 141 is triggered, the cable winding attachment 120 stops winding.

[0020] The folding arm 110 is connected to the top of the charging pile body 100 by a detachable bolt, which ensures connection stability and facilitates subsequent maintenance. The roller 130 is rotatably connected to the folding arm 110 through a rotating shaft. Anti-detachment limiting sleeves are provided at both ends of the rotating shaft to prevent the roller 130 from falling off. The cable part is embedded in the annular groove 131 of the roller 130, which can guide and limit the cable during the movement of the roller 130 to prevent the cable from deviating. When the cable needs to be retrieved, the cable winding accessory 120 initiates the winding action. Simultaneously, the folding arm 110 folds, causing the roller 130 to move upward. As the roller 130 moves upward, it gradually brings the cable closer to the baffle 140. When the roller 130 reaches its upward position, the roller 130 and the baffle 140 together compress and limit the cable, restricting its lateral and longitudinal movement. This compression also triggers the button 141 on the baffle 140. The button 141 is electrically connected to the cable winding accessory 120 via a wire. Upon triggering, the button 141 sends an electrical signal to the cable winding accessory 120, stopping the winding. This structural combination effectively improves the problem of the cable being easily snagged by vehicles after retrieval due to loosening, increasing the cable's tensile strength and reducing the possibility of damage to the charging pile. When the user needs to use the charging gun 200, it can be released in two ways: first, by pressing the preset release button 141 on the surface of the charging pile body 100; second, by scanning the QR code on the charging pile body 100 with a mobile terminal to establish communication with the charging pile's control module and send a release command. Upon triggering of the release command, the controller drives the drive arm 112 to extend and retract in the opposite direction, causing the shock absorber 113 to unfold relative to the drive arm 112. This, in turn, pulls the swing arm 111 to rotate synchronously, causing the folding arm 110 to unfold downwards as a whole. The roller 130 moves downwards with the folding arm 110, releasing the compression limit on the cable. Simultaneously, the electric reel 121 in the cable winding accessory 120 adopts a one-way drive design and integrates a one-way clutch. When the user pulls out the charging gun 200, the cable drives the electric reel 121 to rotate in the opposite direction. At this time, the one-way clutch is in the disengaged state, and the electric reel 121 does not generate reverse driving force, nor does it obstruct the pulling out of the cable, ensuring that the user can smoothly pull the charging gun 200 to the required length for charging.

[0021] To facilitate the stable folding and unfolding action of the folding arm 110, in one optional embodiment, the folding arm 110 includes at least a swing arm 111, a drive arm 112, and a shock absorber 113. Both the drive arm 112 and the swing arm 111 are rotatably connected to the charging pile body 100. The two ends of the shock absorber 113 are rotatably connected to the drive arm 112 and the swing arm 111, respectively. The drive arm 112 extends and retracts, driving the shock absorber 113 to move and forming a folding engagement with the shock absorber 113. When the shock absorber 113 folds relative to the drive arm 112, it drives the roller 130 to move upward, and vice versa.

[0022] The fixed end of the drive arm 112 is rotatably connected to the charging pile body 100 via the connecting seat 150; one end of the swing arm 111 is also connected to the charging pile body 100 via a hinge structure, and both ends of the shock absorber 113 are connected to the drive arm 112 and the swing arm 111 respectively. The drive arm 112 adopts a telescopic rod structure (electric push rod, hydraulic rod, pneumatic rod), and its extension and retraction are centrally controlled by the controller. When the cable is retracted, the drive arm 112 retracts, and the force is transmitted to the swing arm 111 through the shock absorber 113, causing the swing arm 111 to rotate inward, thereby folding the folding arm 110. The extension and retraction of the shock absorber 113 can prevent the cable from being squeezed and damaged. When the cable is released, the drive arm 112 extends, and the shock absorber 113 pulls the swing arm 111 to rotate outward, thereby unfolding the folding arm 110.

[0023] Specifically, further optimization can be achieved by selecting the following method: the cable winding accessory 120 includes an electric winding wheel 121 installed on the charging pile body 100 and a pressure detection component 122 located below the roller 130. The electric winding wheel 121 starts winding when the charging gun 200 is inserted back into the charging pile body 100. After the pressure detection component 122 is separated from the cable as the electric winding wheel 121 winds up, the drive arm 112 drives the shock absorber 113 to fold and lift the cable, and the baffle 140 restricts the movement of the cable. After the cable presses the button 141, the electric winding wheel 121 stops winding.

[0024] The electric reel 121 is fixedly installed inside the charging pile body 100 by a bracket. The bracket is fixed to the charging pile body 100 to ensure the stability of the electric reel 121 during operation. The one-way clutch integrated inside is coaxially connected to the reel shaft and only provides positive driving force when retracting. It is in an idle state when releasing and pulling out. The pressure detection component 122 is fixed to the charging pile body 100 by bolts and is located at a preset position below the roller 130. When the charging gun 200 is inserted back into the charging pile body 100, the limit switch set in the slot on the charging pile body 100 is triggered or the interface is energized, which cooperates with the electric reel 121 to start the electric reel 121 to rewind. During the winding process, the cable remains in contact with the pressure detection component 122. As the cable is gradually wound up and pulled, the force exerted by the cable on the pressure detection component 122 gradually decreases or separates. When the cable is completely separated from the pressure detection component 122, the pressure detection component 122 sends a signal to the controller. The controller drives the drive arm 112 to start the retraction action, which drives the shock absorber 113 to fold, thereby lifting the cable until the cable is pressed by the roller 130 and the baffle 140 to trigger the button 141, and the electric winding wheel 121 stops winding.

[0025] In some options, the pressure detection component 122 is installed on the charging pile body 100 below the position corresponding to the insertion of the charging gun 200, and is provided with a ramp 1221 for abutting the cable. The pressure detection determines whether the cable abuts the ramp 1221. When the electric reel 121 winds up the cable until the cable separates from the ramp 1221, the drive arm 112 drives the shock absorber 113 to cooperate in folding.

[0026] The main body of the pressure detection component 122 consists of a contact plate with an inclined surface 1221 and a pressure sensor located below the contact plate. The pressure sensor is electrically connected to the controller and detects the pressure value of the cable on the inclined surface 1221 in real time. During retraction, when the pressure value drops below a threshold, the controller determines that the cable has disengaged from the preset support position and drives the folding arm 110 to fold. During release, after the user pulls out the cable and finishes using it, they reinsert the charging gun 200 into the charging station, and the cable re-abuts against the inclined surface 1221 of the pressure sensor. This method of pressure detection through the contact of the inclined surface 1221 ensures the accuracy of the timing of the folding arm 110's activation during retraction.

[0027] To improve the stability of the folding arm 110 after it is folded into place, in one optional embodiment, a connecting seat 150 is fixedly connected to the charging pile body 100 at the position corresponding to the drive arm 112, and a first snap-fit ​​member 160 is provided on the connecting seat 150; the swing arm 111 is provided with a second snap-fit ​​member 170. When the drive arm 112 and the shock absorber 113 are folded into place, the first snap-fit ​​member 160 and the second snap-fit ​​member 170 are elastically snapped together.

[0028] The connector 150 is fixedly connected to the charging pile body 100 by bolts to ensure connection strength; the elastic snap-fit ​​can achieve passive limiting, providing a certain degree of stability control, and will not cause obstruction when unfolded, making the storage state more stable.

[0029] Specifically, a trigger switch is provided on the first card connector 160 or the second card connector 170. When the first card connector 160 and the second card connector 170 are engaged, the trigger switch is triggered, and the drive arm 112 stops driving.

[0030] The trigger switch setting can also provide position detection, allowing the folding and unfolding drive to have better detection performance.

[0031] This embodiment also provides a method for cable recovery of a charging gun 200, including the following steps: S1: After the charging gun 200 is reset to the charging pile body 100, the winding mechanism is triggered to start the cable winding action; S2: The winding status of the cable is monitored in real time by the detection component to determine whether the cable has left the preset support position; S3: When the detection component confirms that the cable has left the preset support position, the folding mechanism is driven to move the cable guide along the up and down direction of the charging pile body 100, so that the cable moves synchronously with the guide on the folding mechanism; S4: When the guide moves to the preset limit position, the cable is squeezed by the cooperation of the guide and the limit structure to restrict its movement and trigger a stop signal; S5: After receiving the stop signal, the winding mechanism stops winding, the folding mechanism is locked in position by the snap-fit ​​structure, the driving mechanism stops its action, and the cable recovery is completed.

[0032] When the charging gun 200 is reset into the slot of the charging pile body 100, the winding mechanism is triggered to start winding. The detection component monitors the cable status in real time. When it is confirmed that the cable has detached from the preset support position, the driving folding mechanism moves the guide. The guide and the limiting structure cooperate to squeeze the cable and trigger a stop signal. The winding mechanism stops winding, the folding mechanism locks, and the recycling is completed. The release process of this method is as follows: The user sends a release command by pressing the release button 141 or scanning the code. After the command is triggered, the driving mechanism drives the folding mechanism to unfold, moving the guide downward and releasing the compression limit on the cable. At the same time, the winding mechanism is in an idle state due to the unidirectional drive design. When the user pulls the charging gun 200 outward, the cable drives the winding mechanism to rotate in the opposite direction without driving force obstruction, realizing the smooth release of the cable. The coordination of the recycling and release processes not only improves the tensile strength of the cable after recycling through automated operation, but also enhances the user's convenience through convenient release and unobstructed pull-out experience, effectively balancing the protection effect and the user experience.

[0033] To adapt to different usage scenarios, in one optional solution, the monitoring method of the detection component includes at least one of pressure monitoring and contact monitoring. The preset support position is the abutment support state between the cable and the detection component, and the stop signal is generated by mechanical extrusion or induction trigger.

[0034] When the detection component uses pressure monitoring, the pressure sensor collects the cable contact pressure; upon retraction, the pressure drops below a threshold, indicating the cable has detached from the preset support position. When using contact monitoring, a contact sensor determines cable detachment based on the contact state of the contact points. A stop signal can be generated via mechanical compression (e.g., cable compression button 141) or inductive triggering (e.g., an infrared sensor detecting cable position). The selection of multiple monitoring and signal generation methods enhances the method's adaptability, meeting the needs of different structural designs.

[0035] Specifically, the locking effect of the folding mechanism can also be optimized in the following way: when the folding mechanism is folded to the preset position, the first locking structure and the second locking structure form an elastic locking, and the positioning switch is triggered simultaneously. The positioning switch sends a stop command to the drive mechanism, so that the drive mechanism terminates the drive of the folding mechanism.

[0036] In some options, the guide supports the cable through the limiting structure on its outer periphery, and the cable is fixed by the lifting and squeezing of the guide and the limiting structure, so that the cable is in a tensile-resistant state, reducing the damage to the cable and charging pile caused by external pulling.

[0037] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A charging pile with cable pull protection, characterized in that, The device includes a charging pile body, a folding arm mounted on top of the charging pile body, and a cable winding accessory. The folding arm has at least one roller, and the outer circumference of the roller has an annular groove for the cable to be partially embedded. The folding arm folds and unfolds, causing the roller to move vertically relative to the charging pile body. A baffle is provided on the charging pile body along the path of the roller's movement, and a button is provided on the baffle. When the roller moves upward to its designated position, the roller presses the cable against the baffle, restricting the cable's movement and triggering the button. After the button is triggered, the cable winding accessory stops winding.

2. The charging pile with cable anti-tension as described in claim 1, characterized in that, The folding arm includes at least a swing arm, a drive arm, and a shock absorber. The drive arm and the swing arm are rotatably connected to the charging pile body. The two ends of the shock absorber are rotatably connected to the drive arm and the swing arm, respectively. The drive arm extends and retracts, driving the shock absorber to move and forming a folding engagement with the shock absorber. When the shock absorber and the drive arm are folded relative to each other, the rollers are driven to move upward, and vice versa, the rollers are driven to move downward.

3. The charging pile with cable tension protection according to claim 2, characterized in that, The cable winding accessory includes an electric reel mounted on the charging pile body and a pressure detection component located below the reel. The electric reel starts winding when the charging gun is inserted back into the charging pile body. After the pressure detection component is separated from the cable as the electric reel winds up, the drive arm drives the shock absorber to fold and lift the cable, and the baffle restricts the cable movement. The electric reel stops winding when the cable is pressed.

4. The cable-resistant charging pile according to claim 3, characterized in that, The pressure detection component is installed on the charging pile body below the position where the charging gun is inserted, and is provided with an inclined surface for abutting the cable. The pressure detection determines whether the cable abuts the inclined surface. When the electric reel winds up the cable until the cable separates from the inclined surface, the drive arm drives the shock absorber to fold it.

5. The cable-resistant charging pile according to claim 2, 3, or 4, characterized in that, A connecting seat is fixedly connected to the charging pile body at the position corresponding to the drive arm, and a first snap-fit ​​component is provided on the connecting seat; the swing arm is provided with a second snap-fit ​​component, and when the drive arm and the shock absorber are folded into place, the first snap-fit ​​component and the second snap-fit ​​component are elastically snapped together.

6. The charging pile with cable tension protection according to claim 5, characterized in that, A trigger switch is provided on the first or second card connector. When the first and second card connectors are engaged, the trigger switch is triggered, and the drive arm stops driving.

7. A method for recycling charging gun cables, characterized in that, Includes the following steps: S1: After the charging gun is reset to the charging pile body, the winding mechanism is triggered to start the cable winding action; S2: The detection component monitors the cable winding status in real time to determine whether the cable has fallen off the preset support position; S3: When the detection component confirms that the cable has left the preset support position, the drive folding mechanism drives the cable guide to move along the up and down direction of the charging pile body, so that the cable moves synchronously with the guide on the folding mechanism. S4: When the guide moves to the preset limit position, the cable is squeezed by the cooperation between the guide and the limit structure to restrict its movement and trigger a stop signal; S5: After receiving the stop signal, the winding mechanism stops winding, the folding mechanism locks and positions itself through the snap-fit ​​structure, the drive mechanism stops moving, and the cable is retracted.

8. The method for recycling charging gun cables according to claim 7, characterized in that, The monitoring method of the detection component includes at least one of pressure monitoring and contact monitoring. The preset support position is the abutment support state between the cable and the detection component. The stop signal is generated by mechanical extrusion or induction triggering.

9. The method for recycling charging gun cables according to claim 7 or 8, characterized in that, The locking and positioning process of the folding mechanism includes: when the folding mechanism is folded to a preset position, the first locking structure and the second locking structure form an elastic locking, and the positioning switch is triggered simultaneously. The positioning switch sends a stop command to the driving mechanism, so that the driving mechanism terminates the driving of the folding mechanism.

10. The method for recycling charging gun cables according to claim 7 or 8, characterized in that, The guide member carries the cable through the limiting structure on its outer circumference, and the cable is fixed by the lifting and squeezing of the guide member and the limiting structure, so that the cable is in a tensile-resistant storage state, reducing the damage to the cable and charging pile caused by external pulling.

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