A new energy charging pile convenient to maintain

Abstract

The application relates to the technical field of charging piles and discloses a new energy charging pile convenient to maintain, which comprises a charging pile body, a cable and a charging gun, one end of the cable is connected with the charging pile body, the other end of the cable is connected with the charging gun, a transversely-through pulling slot is arranged on one side of the charging pile body, a wire feeding trolley is slidingly connected to the pulling slot in a pulling mode, collecting and releasing rollers are arranged on the charging pile body and the wire feeding trolley, and the cable is spirally wound on the collecting and releasing rollers; the wire feeding trolley further comprises a cleaning box, a partition piece, a brush piece and a wiping pad capable of extruding the cable are arranged in the cleaning box, the cable passes through the partition piece, the brush piece and the wiping pad in sequence, a magnetic attraction fixing base is provided with a hinged seat fixed on the lower side of the wire feeding trolley and a pair of arc-shaped plates rotatably installed on the hinged seat, and the arc-shaped plates are used for elastically clamping the charging gun. The new energy charging pile can be flexibly adapted to different outdoor environments and is fast to disassemble, assemble and maintain.

Description

Technical Field

[0001] This invention relates to the field of charging pile technology, specifically to a new energy charging pile that is easy to maintain. Background Technology

[0002] With the rapid popularization of the new energy vehicle industry, charging piles, as core supporting infrastructure, have been widely promoted and applied. Currently, most mainstream new energy charging piles adopt an integrated cabinet structure, which centrally arranges power modules, control units, charging interfaces, heat dissipation systems, and electrical components inside a closed shell. Although it can meet basic charging functions, it generally suffers from prominent problems such as high maintenance difficulty, low repair efficiency, and cumbersome component replacement during long-term outdoor operation and maintenance, making it difficult to meet the requirements of efficient operation and maintenance and long-term stable use.

[0003] For example, a currently disclosed electric vehicle charging pile, CN120942065A, relates to the field of charging pile technology. It includes a housing and a main body installed within the housing. The housing includes a base and side shells, with limit plates slidably engaging at positions corresponding to the clearance holes on the side shells. The base and side shells are detachably connected via a connecting mechanism. This invention improves the efficiency of housing maintenance.

[0004] The charging pile's cables are suspended outside the pile body. When used outdoors, these exposed cables are prone to wear and tear from the ground, being run over by people or vehicles, and easily becoming dirty, bent, cracked, and susceptible to water damage in rain and snow, increasing the risk of electrical leakage. Furthermore, cable maintenance requires disassembling the charging pile casing and removing the cables from the charging gun for replacement, a cumbersome and time-consuming process. Therefore, this invention designs a new energy charging pile that increases cable adaptability, allows for flexible use, enables quick cable installation and removal, and reduces maintenance frequency. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a new energy charging pile that is easy to maintain, with advantages such as strong adaptability and easy cable maintenance, solving the problems of poor flexibility in the use of charging pile cables and exposure to wear.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A new energy charging pile that is easy to maintain includes a charging pile body, a cable and a charging gun. One end of the cable is connected to the charging pile body and the other end is connected to the charging gun. A horizontally penetrating pull-out groove is opened on one side of the charging pile body. A cable feeding trolley is slidably connected to the pull-out groove. Both the charging pile body and the cable feeding trolley are equipped with take-up and release rollers. The cable is spirally wound on the take-up and release rollers. The wire delivery trolley also includes: A cleaning box, wherein the cleaning box is provided with a partition, a brush, and a wiping pad that can compress the cable, and the cable passes through the partition, the brush, and the wiping pad in sequence; The magnetic fixing base has a hinged base fixed to the lower side of the wire feeding trolley, and a pair of arc-shaped plates rotatably mounted on the hinged base, the pair of arc-shaped plates being used to elastically clamp the charging gun.

[0007] Both ends of the cable are detachably equipped with tensile-resistant modules. The main body of the charging pile is equipped with a controller and an alarm light. The controller is preset with an alarm tensile force value. The tensile-resistant modules and the alarm light are electrically connected to the controller.

[0008] The tensile module includes two sockets, a frustum spring, and a tensile force detection end; The two sockets are respectively fixed to both ends of the cable, one socket is plugged into the charging pile body, and the other socket is plugged into the charging gun; Two sets of partitions and two sets of brushes are symmetrically arranged at the inlet and outlet of the cleaning box, and the partitions at the same port are located outside the brushes. The cable is spirally arranged along the outside of the frustum spring. The tension detection end includes a pressure sensor and a high-elasticity connection end. The pressure sensor is arranged through the axis of the frustum spring, and the high-elasticity connection end is connected to a cable and a socket respectively.

[0009] The upper end of the cable delivery trolley has a semi-arc structure, and a limiting groove adapted to the shape of the cable delivery trolley is opened on the outer side of the charging pile body. The cable delivery trolley can be inserted into the limiting groove, and the periphery of the limiting groove is covered with a water curtain to waterproof the charging pile body.

[0010] The take-up and release roller includes a storage box, in which a rotating shaft is rotatably mounted. A coil spring is fixed on the rotating shaft, and the coil spring provides elastic take-up and release of the cable. The cable outlet end of the storage box is provided with a damping self-locking module for locking the length of the cable after it is pulled out.

[0011] The feature is that the partition and the brush are provided in two sets, and the two sets of partitions and the two sets of brushes are symmetrically arranged at the inlet and outlet of the cleaning box, respectively. The partition at the same port is located outside the brush. The partition has a through hole in the middle for the cable to pass through, and the brush has a toothed structure at the end that can fit with the surface of the cable.

[0012] The wiping pad is equipped with several compression springs arranged in a straight line at one end near the partition, and a bonding pad is provided at the other end of the wiping pad away from the partition. The bonding pad is made of rubber and has several movable grooves opened longitudinally on its surface for cleaning the cable surface.

[0013] An elastic tension spring connects the two arc-shaped plates, a magnetic sheet is provided on the hinge seat, and a magnetic metal sheet is fixed on the outer surface of the charging gun.

[0014] (III) Beneficial Effects Compared with existing technologies, this invention provides a new energy charging pile that is easy to maintain and has the following beneficial effects: 1. This new energy charging pile, through the setting of a cable delivery trolley and two take-up and release rollers, can store external drag cables in sections, improving the problems of easy wear and dirt accumulation. The use of coil springs and damping self-locking modules in the take-up and release rollers can adaptively and smoothly take up and release the cable, lock the length and reset the rotation. It can flexibly move with the charging position to adapt to the charging position of different vehicles, and maintain the cable in real time, reducing the maintenance frequency.

[0015] 2. This new energy charging pile uses detachable sockets at both ends of the cable and tensile modules to facilitate quick cable disassembly and replacement. The use of a truncated cone spring in the tensile module can buffer instantaneous tensile impact force, preventing stress concentration at the ends and defects such as easy cracking and damage. The tensile detection end simultaneously detects the tensile value and provides an alarm reminder to prevent tensile damage, providing full-process safety monitoring for the cable.

[0016] 3. This new energy charging pile, through the combined use of the cleaning box and the magnetic fixing base, can not only clean the retrieved cable, but also fix the position of the charging gun, achieving dual limiting of elasticity and magnetism, restricting its use position, stabilizing storage, preventing the cable and charging gun from breaking, and maintaining the structure of the cable and charging gun. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a partial connection diagram between the cable delivery trolley and the main body of the charging pile in this invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the wire delivery trolley in this invention.

[0020] Figure 4 This is an exploded view of the structure of the take-up and release rollers in this invention.

[0021] Figure 5 This is an exploded view of a partial connection between the charging gun and the cable in this invention.

[0022] Figure 6 This is a partial structural diagram of the frustum spring, cable, and tension detection end in this invention.

[0023] Figure 7 This is an exploded view of the internal structure of the cleaning box in this invention.

[0024] Figure 8 This is an exploded view of the structure of the wiping pad in this invention.

[0025] Figure 9 This is an exploded view of the wire feeding trolley and the arc-shaped plate in this invention.

[0026] Figure 10 for Figure 9 Enlarged view of the structure of 'a' in the diagram.

[0027] In the diagram: 101. Charging pile body. 102. Cable. 103. Charging gun. 200. Cable delivery trolley. 201. Take-up and untake-down roller. 202. Cleaning box. 203. Magnetic fixing seat. 301. Rotating shaft. 302. Coil spring. 303. Damping self-locking module. 401. Spacer. 402. Brush plate. 403. Wiping pad. 404. Compression spring. 405. Fitting pad. 501. Hinge seat. 502. Arc plate. 503. Elastic tension spring. 504. Magnetic sheet. 600. Tensile resistance module. 601. Frustum spring. 602. Socket. 603. Tensile force detection end. 604. High-elasticity connection end. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0030] In addition, a fixed connection refers to a connection where parts or components are fixed in place, with no relative movement. A transmission connection refers to a connection method that transmits mechanical motion or torque to other working parts through a transmission component. A sliding connection refers to a connection method where two objects are in contact but not fixed, and can slide relative to each other. A rotating connection refers to a connection method where two objects are in contact but not fixed, and can rotate relative to each other.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Reference Figure 1-10 This embodiment provides a new energy charging pile that is easy to maintain. The charging pile mainly consists of a charging pile body 101, a cable 102, and a charging gun 103. The two ends of the cable 102 are connected to the charging pile body 101 and the charging gun 103 respectively, forming a complete charging connection structure. By setting an outwardly movable cable delivery trolley 200 on one side of the charging pile body 101, the long cable 102 suspended externally can be segmented and stored, improving protection against external environmental wear, reducing the maintenance frequency of the cable 102, and providing positioning, locking, and support for the charging gun 103, increasing the safety of the charging gun's position, facilitating charging of vehicles from different locations, and improving usage safety.

[0033] First, a cable delivery trolley 200 can be installed movably through one side of the charging pile body 101. Both the charging pile body 101 and the cable delivery trolley 200 are equipped with take-up and release rollers 201. The cable 102 is spirally wound around the surface of the take-up and release rollers 201, and the cable 102 is taken up and released in sections by the two sets of take-up and release rollers 201. The lower end of the cable delivery trolley 200 is equipped with double-brake swivel wheels from existing equipment, which limit the position and rotation angle of the cable delivery trolley 200, facilitating its flexible movement out of the charging pile body 101, and allowing the cable 102 to be flexibly delivered to a position and angle close to the car for docking. Then, a cleaning box 202 and a magnetic fixing seat 203 are integrated on the cable delivery trolley 200. The cleaning box 202 contains a partition 401, a brush 402, and a wiping pad 403 that can compress the cable 102. During movement, the cable 102 passes through the partition 401, brush 402, and wiping pad 403 in sequence, completing the surface cleaning operation. The magnetic fixing seat 203 is fixed to the lower side of the cable delivery trolley 200 and has a hinge seat 501. A pair of arc-shaped plates 502 are rotatably mounted on the hinge seat 501. An elastic tension spring 503, connected between the two arc-shaped plates 502, can elastically clamp and limit the charging gun 103. In some embodiments, a rubber sealing sleeve can be provided between the magnetic fixing seat 203 and the cable delivery trolley 200 to increase waterproofing. When using the equipment, pulling the charging gun 103 causes the cable 102 to unfold from the take-up roller 201. The cable delivery trolley 200 moves synchronously with the cable 102 on the charging pile body 101. The charging gun 103 is removed from the magnetic fixing seat 203, and the cable 102 is pulled out of the cable delivery trolley 200, thus adapting to different charging distances. After the charging operation is completed, the take-up roller 201 retracts the cable 102, and the arc plate 502 clamps and fixes the charging gun 103, completing the overall storage. During the use of the charging pile, the problems of exposed cable 102, dragging and abrasion, messy storage, and inconvenient maintenance are improved. The movable cable delivery trolley 200, together with two sets of take-up rollers 201, realizes the zoned take-up and release of the cable 102, which can evenly distribute the force on the cable 102, avoid the cable 102 from cracking and breaking due to long-term local bending and pulling, and continuously improve the cable 102's flexibility and environmental adaptability. The cleaning box 202 continuously removes surface impurities during the cable 102's winding and unwinding process, keeping the cable 102 surface clean and reducing the risk of leakage caused by accumulated dirt and water in rainy or snowy weather. The magnetic mounting base 203 can quickly store and fix the charging gun 103, eliminating the need to disassemble the charging pile body 101 for routine maintenance, effectively reducing the difficulty and frequency of equipment maintenance, and ensuring the long-term stable operation of the charging pile in outdoor environments.

[0034] To prevent damage from pulling during the use of cable 102, tensile strength modules 600 can be detachably installed at both ends of cable 102. Each tensile strength module 600 consists of a socket 602, a frustum spring 601, and a tension detection end 603. Two sockets 602 are fixed to both ends of cable 102, with one socket 602 engaging with the charging pile body 101 and the other socket 602 engaging with the charging gun 103, allowing for detachable assembly at both ends of cable 102. Simultaneously, the frustum spring 601 is arranged correspondingly beside the socket 602, with cable 102 spirally arranged along the outer side of the frustum spring 601.

[0035] In some embodiments, the tensile testing end 603 includes a pressure sensor and a high-elasticity connection end 604. The pressure sensor is installed along the axis of the frustum spring 601. The end of the pressure sensor is connected to the cable 102 and the socket 602 via the high-elasticity connection end 604, and is electrically connected to the socket 602. The connection end is wrapped with an insulating sheath to increase waterproof and insulation safety and facilitate the detection of tensile force on the cable 102. When the cable 102 is subjected to tensile force, the tensile force is smoothly transmitted to the pressure sensor through the high-elasticity connection end 604 to complete the tensile force data acquisition, and then transmitted to the charging pile body 101 through the cable 102 to provide tensile force data. At the same time, the frustum spring 601 uses its own elasticity to buffer the instantaneous impact force, reducing the hard damage of the tensile force to the end of the cable 102 and the plug position, ensuring the smooth operation of the tensile force detection. Through the specific composition and assembly relationship of the tensile module 600, the problems of concentrated force at the end of the cable 102, insufficient tensile force detection accuracy, and cumbersome disassembly and assembly are solved. The frustum spring 601 continuously buffers the instantaneous force generated during the winding, unwinding, and pulling of the cable 102, effectively reducing tensile loss at the cable 102 end and enhancing its tensile strength. The pressure sensor, in conjunction with the high-elasticity connector 604, ensures uniform and stable force transmission, avoiding detection errors caused by stress deviation and achieving high-precision tensile force monitoring. The plug-in structure composed of the socket 602 supports the individual disassembly and replacement of the cable 102. Combined with existing cleaning, storage, and warning structures, it forms an integrated cable 102 protection system, effectively reducing the probability of equipment failure and maintenance costs.

[0036] Next, a controller and alarm light can be installed inside the charging pile body 101. The controller has a preset fixed alarm tension value, and the tension-resistant module 600 and the alarm light are electrically connected to the controller. During normal operation of the charging pile and during the winding and unwinding of the cable 102, the tension-resistant module 600 collects the tension data at both ends of the cable 102 in real time and transmits the data to the controller. The controller compares the real-time tension data with the preset alarm tension value. When the cable 102 is subjected to abnormal external forces such as crushing or strong pulling, and the tension value exceeds the preset range, the controller immediately controls the alarm light to illuminate, promptly issuing an abnormality warning to remind maintenance personnel to carry out maintenance work and prevent further damage to the cable 102. By using the split-end tension-resistant module 600 in conjunction with the controller and alarm light, the stress state of the cable 102 can be monitored throughout the process, and dangerous conditions such as tension overload can be identified in a timely manner, minimizing damage such as internal wire breakage and outer sheath tearing of the cable 102 and extending the overall service life of the cable 102. The Nera Module 600 features a detachable structure, allowing for easy maintenance by individual disassembly and replacement without disassembling the entire device. This further simplifies the operation and maintenance process. Combined with a front-end cleaning and storage structure, it comprehensively enhances the operational safety and maintenance convenience of charging piles.

[0037] Furthermore, the upper end of the cable delivery trolley 200 can be set to a semi-circular shape, and a limiting groove adapted to the shape of the cable delivery trolley 200 can be opened on the outer side of the charging pile body 101. When the equipment is not in use, the cable delivery trolley 200 can be completely inserted into the limiting groove for storage, reducing the overall space occupied by the equipment. A water curtain is fully covered around the limiting groove. During outdoor use, the water curtain can cover the connection gap between the charging pile body 101 and the cable delivery trolley 200, preventing rainwater, fog, dust and other debris from entering the gap, avoiding malfunctions such as component dampness and corrosion, and short circuits. This improves the charging pile's adaptability to outdoor environments and long-term operational reliability, and ensures that the cable delivery trolley 200 slides smoothly without jamming.

[0038] In some embodiments, the take-up and release roller 201 is configured as a detachable storage box structure, with the cable 102 passing through the inside of the storage box. A rotating shaft 301 is rotatably mounted inside the storage box, and a coil spring 302 is fixed on the rotating shaft 301. The preload of the coil spring 302 uses an elastic coefficient adapted to the pulling and retracting of the cable 102. The end of the coil spring 302 is connected to the cable 102. Pulling the cable 102 causes deformation of the coil spring 302, facilitating the rotation of the released cable 102 using the elasticity of the coil spring 302. The cable can be wound up and retracted. Simultaneously, a damping self-locking module 303 can be installed at the cable exit end of the storage box. This module is positioned close to the storage box and the cable 102, with the cable 102 passing through it. A push-button is located in the center of the module, using an existing push-button self-locking design. Locking the self-locking button tightens the cable 102, locking its position and limiting its length. Opening the button releases the cable 102, facilitating winding and unwinding. When the operator pulls the charging gun 103 to remove the cable 102, the damping self-locking module 303 is first activated. The cable 102 drives the rotating shaft 301 to rotate, causing the coil spring 302 to elastically deform and store potential energy. Then, the damping self-locking module 303 is closed, limiting the cable 102 length, allowing for the deployment of the charging gun 103. After charging is complete, the damping self-locking module 303 is activated, the cable 102 is released, the coil spring 302 releases its elastic potential energy, driving the rotating shaft 301 to rotate in the opposite direction, automatically retracting the cable 102 into the storage box, completing the reset and storage. The fully automatic cable retraction and extension by the take-up and extend rollers 201 eliminates manual handling, improving the ease of use of the equipment. The damping self-locking module 303 continuously limits the usable length of the cable 102 and restricts the stability of the retraction and extension, preventing the cable 102 from swinging, bending, or being excessively pulled, thus reducing frictional loss.

[0039] In some embodiments, the cleaning box 202 may be configured with two sets of partitions 401 and brushes 402 inside the cleaning box 202. The two sets of partitions 401 and brushes 402 are symmetrically arranged at the inlet and outlet positions of the cleaning box 202, respectively. A through hole is provided in the middle of the partition 401 to allow the cable 102 to pass through, serving as a positioning and guiding function for the cable 102. Multiple brushes 402 are made of wear-resistant rubber and are staggered, with toothed structures at their ends, ensuring close contact with the surface of the cable 102. When the cable 102 enters through the inlet of the cleaning box 202, the brushes 402 at the inlet scrape away large pieces of mud, sand, and hard debris from the surface of the cable 102. When the cable 102 exits through the outlet, the brushes 402 at the outlet perform a secondary cleaning. The two sets of partitions 401 constrain the trajectory of the cable 102 throughout its movement, preventing the cable 102 from deviating.

[0040] In some embodiments, for the structural configuration of the wiping pad 403, multiple compression springs 404 are fitted at one end of the wiping pad 403 near the partition 401. All compression springs 404 are evenly arranged in a straight line. An adhesive pad 405 is fixed at the end of the wiping pad 403 away from the partition 401. The adhesive pad 405 is made of rubber and has several movable grooves opened longitudinally on its surface. During the passage of the cable 102, the compression springs 404 continuously apply elastic pressure to the wiping pad 403, so that the adhesive pad 405 tightly wraps around the surface of the cable 102. The movable grooves on the adhesive pad 405 can adapt to the slight deformation and size difference of the cable 102, and follow the movement of the cable 102 to complete a thorough wiping, removing the fine dust and water stains remaining after the brush 402 has been treated, thus achieving fine cleaning.

[0041] Next, in the structural design of the magnetic fixing base 203, a magnetic piece 504 can be fixed on the hinge base 501, and a magnetic metal piece can be fixed on the outer surface of the charging gun 103. This allows the elastic spring 503 to remain in a contracted state under normal operating conditions, causing the two arc-shaped plates 502 to move closer together, forming a clamping space. When storing the charging gun 103, the charging gun 103 presses against one arc-shaped plate 502, opening the opening between the two arc-shaped plates 502. The charging gun 103 can then be placed between the two arc-shaped plates 502. The elastic spring 503 returns to its original position, causing the arc-shaped plates 502 to clamp the charging gun 103. Simultaneously, the magnetic piece 504 and the magnetic metal piece attract each other, forming a double limiting mechanism. When taking out the charging gun 103, simply pull it outward to release the clamp and magnetic limit, and fix the charging gun 103 in position. This take-out and take-out structure is simple to operate, without complicated disassembly and assembly steps, improving efficiency, comprehensively reducing the probability of equipment failure and maintenance pressure, and fully meeting the needs of long-term stable operation and convenient maintenance of outdoor equipment.

[0042] Working principle: To facilitate the maintenance of new energy charging piles, a movable cable delivery and retraction mechanism, a cable 102 cleaning system, a dual positioning system for the charging gun 103, and a detachable tensile strength testing and protection structure are designed to work together to solve problems such as easy wear, dirt accumulation, and pulling damage of the cable 102 in traditional charging piles, as well as inconvenient operation and maintenance. When the equipment is in standby mode, the cable delivery trolley 200 is stored in the limiting groove of the charging pile body 101, and works with a water curtain and sealing sleeve to achieve outdoor waterproofing and dustproofing. Simultaneously, the charging gun 103 is double-locked by an elastic clamp and magnetic structure to prevent it from shaking and falling off. When retrieving the charging gun, the limiting and damping self-locking module 303 of the charging gun 103 can be unlocked. As the cable 102 is stretched, the cable delivery trolley 200 moves flexibly to adapt to different vehicle charging positions. After positioning, the length of the cable 102 can be locked to prevent swinging or bending. During the cable 102 delivery and retraction process, the cleaning box 202 uses brushes 402 and elastic pads 403 to clean the surface layer by layer, removing dirt and water stains and avoiding potential leakage hazards. The tensile modules at both ends of cable 102 rely on frustum springs 601 to buffer the pulling impact force, and the tensile force data is collected in real time by pressure sensors. The controller compares the real-time data with preset thresholds, and triggers an alarm when the tensile force is abnormal. After charging is completed, the coil spring 302 drives cable 102 to automatically rewind and store, and the charging gun 103 automatically resets and clamps and fixes itself. This invention has a high degree of structural integration and can be maintained without disassembling the main unit, effectively improving the safety and stability of the equipment during outdoor operation. The new energy charging pile is mainly maintained through the coordinated work of the movable cable delivery trolley 200 retraction and deployment structure, the cable 102 cleaning structure, the dual positioning of the charging gun 103, and the detachable tensile module 600 detection and protection structure, which solves the problems of easy wear, dirt accumulation, pulling damage, and inconvenient maintenance of traditional charging pile cables 102. When the equipment is in standby mode, the cable delivery trolley 200 is stored in the limiting groove of the charging pile body 101. Combined with a water curtain and sealing sleeve, it provides outdoor waterproofing and dustproofing. Simultaneously, the charging gun 103 is double-locked by an elastic clamping structure composed of an arc-shaped plate 502 and an elastic tension spring 503, and a magnetic attraction structure of a magnetic sheet 504, preventing it from shaking and falling off. When retrieving the charging gun, the limiting and damping self-locking module 303 of the charging gun 103 can be unlocked. As the cable 102 stretches, the cable delivery trolley 200 moves flexibly to adapt to different vehicle charging positions. After positioning, the length of the cable 102 can be locked to prevent swinging or bending. During the cable 102 winding and unwinding process, the cleaning box 202 uses brushes 402 and elastic wiping pads 403 to perform layer-by-layer cleaning, removing surface dirt and water stains and avoiding potential leakage hazards. The tensile strength modules 600 at both ends of the cable 102 rely on a truncated cone spring 601 to buffer the pulling impact force, and the pressure sensor built into the tensile strength detection end 603 collects tensile strength data in real time. The controller compares real-time data with preset thresholds, triggering an alarm light when the tension is abnormal. After charging is complete, the coil spring 302 drives the rotating shaft 301 to rotate, automatically rewinding and storing the cable 102, and automatically resetting and clamping the charging gun 103. This invention features a high degree of structural integration and can be maintained without disassembling the main unit, effectively improving the safety and stability of the equipment during outdoor operation.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy charging pile that is easy to maintain, comprising a charging pile body (101), a cable (102), and a charging gun (103), wherein one end of the cable (102) is connected to the charging pile body (101) and the other end is connected to the charging gun (103), characterized in that: A transverse pull-out groove is provided on one side of the charging pile body (101), and the cable feeding trolley (200) is slidably connected to the pull-out groove. Both the charging pile body (101) and the cable feeding trolley (200) are provided with take-up and release rollers (201), and the cable (102) is spirally wound on the take-up and release rollers (201). The wire delivery trolley (200) also includes: The cleaning box (202) is provided with a partition (401), a brush (402) and a wiping pad (403) that can compress the cable. The cable (102) passes through the partition (401), the brush (402) and the wiping pad (403) in sequence. The magnetic fixing base (203) has a hinge base (501) fixed on the lower side of the wire feeding trolley (200) and a pair of arc plates (502) rotatably mounted on the hinge base (501), the pair of arc plates (502) being used to elastically clamp the charging gun (103).

2. The new energy charging pile according to claim 1, characterized in that, Both ends of the cable (102) are detachably equipped with tensile-resistant modules (600). The charging pile body (101) is equipped with a controller and an alarm light. The controller is preset with an alarm tensile force value. The tensile-resistant modules (600) and the alarm light are electrically connected to the controller.

3. The new energy charging pile according to claim 2, characterized in that, The tensile module (600) includes two sockets (602), a frustum spring (601), and a tensile force detection end (603). The two sockets (602) are respectively fixed to both ends of the cable (102), one of the sockets (602) is plugged into the charging pile body (101), and the other socket (602) is plugged into the charging gun (103); Two sets of partitions (401) and two sets of brushes (402) are symmetrically arranged at the inlet and outlet of the cleaning box (202), and the partitions at the same port are located outside the brushes. The cable (102) is spirally arranged along the outside of the frustum spring (601). The tension detection end (603) includes a pressure sensor and a high-elasticity connection end (604). The pressure sensor is arranged through the axis of the frustum spring (601), and the high-elasticity connection end (604) is connected to the cable (102) and the socket (602) respectively.

4. The new energy charging pile according to claim 1, characterized in that, The upper end of the cable delivery trolley (200) has a semi-arc structure. The outer side of the charging pile body (101) is provided with a limiting groove that matches the shape of the cable delivery trolley (200). The cable delivery trolley (200) can be inserted into the limiting groove. The periphery of the limiting groove is covered with a water curtain that makes the charging pile body (101) waterproof.

5. The new energy charging pile according to claim 1, characterized in that, The take-up and release roller (201) includes a storage box, in which a rotating shaft (301) is rotatably installed. A coil spring (302) is fixed on the rotating shaft (301). The coil spring (302) allows the cable (102) to be elastically taken up and released. The cable outlet end of the storage box is provided with a damping self-locking module (303) for locking the length of the cable after it is pulled out.

6. The new energy charging pile according to claim 1, characterized in that, The partition (401) and brush (402) are provided in two sets. The two sets of partitions (401) and the two sets of brush (402) are symmetrically arranged at the inlet and outlet of the cleaning box (202), and the partition at the same port is located outside the brush. The partition (401) has a through hole in the middle for the cable (102) to pass through, and the brush (402) has a toothed structure at the end that can fit with the surface of the cable (102).

7. The new energy charging pile according to claim 6, characterized in that, The wiping pad (403) is equipped with several compression springs (404) arranged in a straight line at one end near the partition (401). The wiping pad (403) is provided with a bonding pad (405) at one end away from the partition (401). The bonding pad (405) is made of rubber and has several movable grooves opened longitudinally on its surface for cleaning the cable surface.

8. The new energy charging pile according to claim 1, characterized in that, An elastic tension spring (503) is connected between the two arc-shaped plates (502), a magnet (504) is provided on the hinge seat (501), and a magnetic metal sheet is fixed on the outer surface of the charging gun (103).

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