A charging pile cable automatic winding and anti-winding device

Abstract

The utility model provides a kind of charging pile cable automatic take-up and anti-winding device, it is related to charging pile supporting equipment technical field, including: main component, the main component includes installation shell, installation cavity is equipped in the inside of installation shell, cable inlet and outlet are arranged in the side of installation cavity;Take-up assembly, the take-up assembly is set in the inside of installation cavity, the take-up assembly includes pivot, reel and volute spring, the pivot is fixed in the two side walls of installation cavity transversely, the reel is sleeved on the outside of pivot and is rotatably connected with pivot, the volute spring is sleeved on pivot, one end is fixed with pivot, the other end is fixed with reel inner wall, the utility model is cooperated by the volute spring and reel of take-up assembly, realizes cable automatic recovery, need not manual operation, improves use convenience;Helical line groove on the surface of reel can guide cable orderly winding, avoid winding problem caused by local accumulation.

Description

Technical Field

[0001] This utility model relates to the technical field of charging pile supporting equipment, specifically to an automatic cable retraction and anti-tangling device for charging piles. Background Technology

[0002] With the popularization of new energy vehicles, the application scenarios of charging piles are becoming increasingly widespread. At present, most charging pile cables on the market are manually wound and unwound. After charging, users need to manually wind the cable around the charging pile body, which is cumbersome and time-consuming. At the same time, problems such as cable tangling, knotting, and wear are prone to occur during manual winding and unwound, which not only affects the user experience, but also shortens the cable's lifespan, and may even pose safety hazards due to messy cables.

[0003] Existing automatic cable reel devices mostly use a single reel structure. When reeling in the cable, the cable is easily concentrated and wrapped around a part of the reel, resulting in stacking, squeezing, and jamming, and the anti-tangling effect is not good. In addition, there is a lack of control over the reeling speed. The force is uneven when the cable is pulled out or retracted, which can easily cause cable pulling damage or irregular reeling. Therefore, an automatic cable reeling and anti-tangling device for charging piles is proposed. Utility Model Content

[0004] In view of this, the present invention provides an automatic cable retraction and anti-tangling device for charging piles, which aims to solve one of the problems in the prior art.

[0005] The technical solution of this utility model embodiment is implemented as follows: an automatic cable retraction and anti-tangling device for charging piles, comprising: The main component includes a mounting housing, the mounting housing having an internal mounting cavity, and a cable inlet / outlet on one side of the mounting cavity; A take-up assembly is disposed inside the mounting cavity. The take-up assembly includes a rotating shaft, a reel, and a coil spring. The rotating shaft is laterally fixed to the two side walls of the mounting cavity. The reel is sleeved on the outside of the rotating shaft and rotatably connected to the rotating shaft. The coil spring is sleeved on the rotating shaft, with one end fixed to the rotating shaft and the other end fixed to the inner wall of the reel. An anti-winding guide assembly is provided between the cable inlet / outlet and the reel, and includes a guide frame, an active guide wheel, a driven guide wheel, and a driving component. The guide frame is fixed in the mounting cavity. The active guide wheel and the driven guide wheel are rotatably connected to the guide frame in parallel vertical rotation, and their wheel surfaces form a cable clamping channel. The driving component is fixed to one side of the guide frame, and its output end is connected to the active guide wheel in a transmission connection. The control component, mounted on the mounting housing, includes a controller, a position sensor, and a tension sensor. The tension sensor is located on the axle of the drive guide wheel and is used to detect the cable tension force. The position sensor is located on one side of the reel and is used to detect the number of reel rotations. The controller is electrically connected to the drive component, the tension sensor, and the position sensor.

[0006] Preferably, the surface of the reel is provided with a spiral groove, the width of which is adapted to the diameter of the cable.

[0007] Preferably, the cable inlet and outlet are equipped with wear-resistant protective sleeves, which are made of rubber and have a smooth coating on the inner wall.

[0008] Preferably, the driving component includes a stepper motor and a gear transmission assembly, wherein the stepper motor is connected to the axle of the drive guide wheel via the gear transmission assembly.

[0009] Preferably, the guide frame is provided with a sliding groove, and the two ends of the axle of the driven guide wheel are slidably connected in the sliding groove. An elastic element is provided in the sliding groove, one end of which is fixed to the top of the sliding groove, and the other end of which abuts against the axle of the driven guide wheel.

[0010] Preferably, the controller is fixed to the top of the mounting housing and has a built-in motor drive module and signal processing module. The motor drive module is used to control the speed and direction of the stepper motor, and the signal processing module is used to receive detection signals from the tension sensor and the position sensor.

[0011] The present invention has the following advantages due to the adoption of the above technical solution: This invention achieves automatic cable retraction by using the coil spring of the cable retraction assembly in conjunction with the reel, eliminating the need for manual operation and improving ease of use; the spiral groove on the surface of the reel guides the cable to wind in an orderly manner, avoiding tangling problems caused by local accumulation; This utility model uses an anti-entanglement guide assembly where the active guide wheel and the driven guide wheel form a stable clamping channel. The elastic element adaptively adjusts the clamping force to ensure that the cable enters and exits in a straight line. The drive component assists in retraction and release, preventing cable deviation or jamming, and completely solving the entanglement problem.

[0012] This invention uses a tension sensor to detect the cable stress in real time, a position sensor to accurately detect the winding and unwinding length, and a controller to adjust the speed and direction of the stepper motor through a built-in module, so that the winding and unwinding speed matches the user's operation, avoids cable pulling damage, and ensures neat winding.

[0013] The rubber wear-resistant protective sleeves at the cable inlet and outlet can reduce cable wear and extend service life; the overall structure adopts a modular design, the components are reliably connected, the installation is convenient, the manufacturing cost is low, and it is compatible with various existing charging piles, making it highly practical and compatible.

[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a partial side view of the present invention. Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the wire take-up assembly of this utility model.

[0017] Figure label: 10. Main components; 101. Mounting housing; 102. Cable inlet and outlet; 103. Wear-resistant protective sleeve; 104. Mounting cavity; 20. Take-up assembly; 201. Shaft; 202. Reel; 203. Coil spring; 30. Anti-winding guide assembly; 301. Guide frame; 302. Driving guide wheel; 303. Driven guide wheel; 304. Drive component; 305. Stepper motor; 306. Gear transmission assembly; 40. Control components; 401. Controller; 402. Position sensor; 403. Tension sensor. Detailed Implementation

[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0019] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application.

[0020] It should also be noted that in the description of this application, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] The specific examples described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Example

[0023] like Figures 1-4 As shown, this utility model embodiment provides an automatic cable retraction and anti-tangling device for charging piles. The mounting housing 101 of the main component 10 has a cuboid structure and is fixed to the side wall of the charging pile body by bolts. The mounting cavity 104 inside the mounting housing 101 has a closed structure. The cable inlet and outlet 102 are opened on the left side wall of the mounting housing 101. The inlet and outlet are fitted with a wear-resistant protective sleeve 103 made of rubber. The inner wall of the protective sleeve is provided with a smooth polytetrafluoroethylene coating to reduce friction loss when the cable enters and exits.

[0024] The take-up assembly 20 is located in the middle of the mounting cavity 104. The rotating shaft 201 is horizontally fixed to the inner walls of both sides of the mounting cavity 104 by welding. The reel 202 is sleeved on the outside of the rotating shaft 201 by a deep groove ball bearing and can rotate freely relative to the rotating shaft 201. The surface of the reel 202 is provided with a continuous spiral groove. The width of the groove is 0.2-0.5mm larger than the diameter of the compatible cable to ensure that the cable is tightly and orderly wound. The coil spring 203 is sleeved in the middle of the rotating shaft 201. One end of the spring is fixed in the slot of the rotating shaft 201 by snap-fit, and the other end is welded and fixed to the annular boss on the inner wall of the reel 202. One end of the cable is fixed to the end of the groove of the reel 202, and the other end passes through the cable inlet and outlet 102 to connect to the charging gun.

[0025] The anti-winding guide assembly 30 is located between the reel 202 and the cable inlet / outlet 102. The guide frame 301 is fixed to the bottom inner wall of the mounting cavity 104 by bolts. The active guide wheel 302 and the driven guide wheel 303 are arranged symmetrically above and below. The axle of the active guide wheel 302 is connected to the guide frame 301 through a rolling bearing. The two ends of the axle of the driven guide wheel 303 are slidably connected to the vertical groove of the guide frame 301. The elastic element in the groove is preferably a cylindrical helical spring, with one end welded to the top of the groove and the other end abutting against the axle of the driven guide wheel 303, so that the driven guide wheel 303 always has a downward preload and forms a stable clamp with the active guide wheel 302. The stepper motor 305 of the drive component 304 is fixed to one side of the guide frame 301 by a bracket. Its output shaft is connected to the axle of the active guide wheel 302 through a gear transmission group 306, which includes an active gear and a driven gear, with a transmission ratio of 1:2, to realize power transmission.

[0026] In the control component 40, the controller 401 is fixed to the top outer wall of the mounting housing 101 by bolts, and has an integrated STM32 series microcontroller as the core control unit, integrating a motor drive module and a signal processing module; the tension sensor 403 is an S-type tension sensor, installed at the end of the axle of the active guide wheel 302, used to detect the tension signal when the cable is pulled in real time; the position sensor 402 is a Hall sensor, fixed on the side of the guide frame 301 near the reel 202, corresponding to the magnets evenly distributed on the edge of the reel 202, and detects the number of rotations of the reel 202 by the magnet trigger signal; the controller 401 is electrically connected to the stepper motor 305, the tension sensor 403 and the position sensor 402 by wires to realize signal transmission and motion control.

[0027] Work process: When the cable is being released, the user pulls the charging gun, causing the cable to rotate clockwise on the reel 202, which in turn twists and stores force in the coil spring 203. At this time, the tension sensor 403 detects the tension signal and transmits it to the signal processing module of the controller 401. The controller 401 then starts the stepper motor 305 to rotate in reverse via the motor drive module, which drives the active guide wheel 302 to rotate, thus assisting in the smooth release of the cable. The position sensor 402 detects the number of rotations of the reel 202 in real time, converts it into the cable release length, and feeds it back to the controller 401 to adjust the speed of the stepper motor 305, so that the cable release speed matches the user's pulling speed and avoids jamming. When retracting the cable, after the user disconnects the charger, the main control system of the charging pile sends a cable retraction trigger signal or triggers it through the built-in delay module of the controller. The controller 401 starts the stepper motor 305 to rotate forward, while the coil spring 203 releases its elasticity to drive the reel 202 to rotate counterclockwise. The active guide wheel 302 and the driven guide wheel 303 clamp the cable and guide the cable to wind orderly along the spiral groove on the reel 202. When the tension sensor 403 detects that the cable tension is less than the set threshold, the controller 401 reduces the speed of the stepper motor 305 to prevent the cable from being pulled and deformed due to excessive retraction. After the cable is wound up, the position sensor 402 detects that the number of times the magnet has been triggered by the reset signal of the reel 202 has reached the set value. The controller 401 shuts down the stepper motor 305, and the coil spring 203 remains in a slightly charged state to ensure that the cable is in a taut state, and the winding process ends.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An automatic cable retraction and anti-tangling device for charging piles, characterized in that, include: The main body component (10) includes a mounting housing (101), the mounting housing (101) has a mounting cavity (104) inside, and a cable inlet and outlet (102) is provided on one side of the mounting cavity (104). The take-up assembly (20) is disposed inside the mounting cavity (104). The take-up assembly (20) includes a rotating shaft (201), a reel (202), and a coil spring (203). The rotating shaft (201) is laterally fixed to the two side walls of the mounting cavity (104). The reel (202) is sleeved on the outside of the rotating shaft (201) and rotatably connected to the rotating shaft (201). The coil spring (203) is sleeved on the rotating shaft (201), with one end fixed to the rotating shaft (201) and the other end fixed to the inner wall of the reel (202). An anti-winding guide assembly (30) is provided, comprising a guide frame (301), an active guide wheel (302), a driven guide wheel (303), and a drive member (304). The anti-winding guide assembly (30) is located between the cable inlet / outlet (102) and the reel (202). The guide frame (301) is fixed in the mounting cavity (104). The active guide wheel (302) and the driven guide wheel (303) are rotatably connected to the guide frame (301) in parallel vertical rotation, and their wheel surfaces form a cable clamping channel. The drive member (304) is fixed to one side of the guide frame (301), and its output end is connected to the active guide wheel (302) in a transmission connection. The control assembly (40) is mounted on the mounting housing (101).

2. The automatic cable retraction and anti-tangling device for charging piles according to claim 1, characterized in that: The surface of the reel (202) is provided with a spiral groove, the width of which is adapted to the diameter of the cable.

3. The automatic cable retraction and anti-tangle device for charging piles according to claim 1, characterized in that: The cable inlet and outlet (102) are equipped with a wear-resistant protective sleeve (103), which is made of rubber and has a smooth coating on the inner wall.

4. The automatic cable retraction and anti-tangle device for charging piles according to claim 1, characterized in that: The drive unit (304) includes a stepper motor (305) and a gear transmission group (306), wherein the stepper motor (305) is connected to the axle of the drive guide wheel (302) through the gear transmission group (306).

5. The automatic cable retraction and anti-tangle device for charging piles according to claim 1, characterized in that: The guide frame (301) is provided with a sliding groove, and the two ends of the axle of the driven guide wheel (303) are slidably connected in the sliding groove. An elastic element is provided in the sliding groove, one end of which is fixed to the top of the sliding groove, and the other end of which abuts against the axle of the driven guide wheel (303).

6. The automatic cable retraction and anti-tangle device for charging piles according to claim 1, characterized in that: The control component (40) includes a controller (401), a position sensor (402), and a tension sensor (403). The tension sensor (403) is located on the axle of the active guide wheel (302) and is used to detect the cable tension. The position sensor (402) is located on one side of the reel (202) and is used to detect the number of rotations of the reel. The controller (401) is fixed to the top of the mounting housing (101). The controller (401) is electrically connected to the drive component (304), the tension sensor (403), and the position sensor (402).

7. The automatic cable retraction and anti-tangle device for charging piles according to claim 6, characterized in that: The controller has a built-in motor drive module and a signal processing module. The motor drive module is used to control the speed and direction of the stepper motor, and the signal processing module is used to receive detection signals from the tension sensor and the position sensor.

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