Wireless charging telescopic charging pile

CN224881778UActive Publication Date: 2026-10-23NINGBO DOUCHPOWER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522502853.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-10-23
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

[0004]上述专利中的无线充伸缩充电桩还存在以下不足:一方面,伸缩机构在反复伸缩过程中,桩体内部连接各元件的线缆缺乏有效固定,易与桩体钣金结构发生摩擦磨损,不仅影响线缆使用寿命,还可能因线缆破损引发漏电等安全隐患;另一方面,AGV、无人车在对接充电时,若定位不准与伸出的发射端线圈发生碰撞,上述专利中的无线充电座不能快速收回桩体内部,易造成发射端线圈或伸缩机构物理损坏,影响充电可靠性

Benefits of technology

本实用新型保护结构中的移动台与防撞伸缩结构的移动板固定连接,可随无线充电座的伸缩同步水平移动;卡扣对线缆的卡紧固定,使线缆随移动台同步位移,避免线缆与桩体钣金开口、内部元件发生相对摩擦,降低线缆磨损导致的漏电风险,提高充电可靠性。

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Abstract

The utility model discloses wireless fills telescopic charging pile, including the stake body, the mounting plate of through screw fixed in the intracavity of stake body and set up wireless charging seat at stake body one side, the above of mounting plate is equipped with the anticollision telescopic structure of drive wireless charging seat horizontal removal, the below of mounting plate is equipped with the protection structure of can make cable with anticollision telescopic structure follow -up, the protection structure includes the mobile station of can with anticollision telescopic structure synchronous removal, the bottom of mobile station is fixed with the buckle of can to cable clamping through screw, the utility model discloses the mobile station of protection structure and the fixed connection of anticollision telescopic structure's moving board, can with wireless charging seat telescopic synchronous horizontal removal, the clamping of buckle to cable fixed, make cable synchronous displacement with mobile station, avoid cable and stake body sheet metal opening, relative friction of internal element occurs, reduce the risk of leakage of cable abrasion, improve charging reliability.
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Description

Technical Field

[0001] This utility model relates to the field of wireless charging technology, specifically to a wireless retractable charging station. Background Technology

[0002] A wireless retractable charging station is a charging device that combines wireless charging technology with a retractable function. It can adjust the length of the charging cable or the position of the charging bracket according to actual needs, making it more flexible and convenient to use.

[0003] A search revealed a telescopic wireless automatic charging pile device disclosed in patent application publication number CN211543293U, which includes a frame, a telescopic component, a guide component, a charging end housing, a wireless charging module, a distance sensor, and a through-beam photoelectric sensor. The telescopic component is connected to the guide component, the guide component is connected to the charging end housing, and the wireless charging module is installed inside the charging end housing.

[0004] The wireless retractable charging pile in the aforementioned patent also has the following shortcomings: On the one hand, during the repeated extension and retraction of the telescopic mechanism, the cables connecting various components inside the pile body lack effective fixation, which easily leads to friction and wear with the sheet metal structure of the pile body. This not only affects the service life of the cables but may also cause safety hazards such as leakage due to cable damage. On the other hand, when AGVs and unmanned vehicles dock for charging, if the positioning is inaccurate and they collide with the extended transmitting coil, the wireless charging base in the aforementioned patent cannot quickly retract into the pile body, which can easily cause physical damage to the transmitting coil or the telescopic mechanism, affecting the reliability of charging. Utility Model Content

[0005] The purpose of this utility model is to provide a wireless charging telescopic charging pile. By designing a cable protection structure that is synchronized with the anti-collision telescopic structure, the cable is prevented from rubbing and wearing with the sheet metal parts of the pile during the telescopic process. At the same time, it has an anti-collision protection function, which can reduce the physical damage to the wireless charging base and telescopic mechanism caused by collisions, extend the service life of the equipment, and improve the charging reliability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wireless retractable charging pile, including a pile body, an mounting plate fixed to the inner cavity of the pile body by screws, and a wireless charging base disposed on one side of the pile body. An anti-collision retractable structure for driving the wireless charging base to move horizontally is installed above the mounting plate, and a protective structure for the cable to move with the anti-collision retractable structure is disposed below the mounting plate. The protective structure includes a movable platform that can move synchronously with the anti-collision telescopic structure. The bottom of the movable platform is fixed with a buckle that can lock the cable by screws. The anti-collision telescopic structure includes a movable plate and a drive assembly that drives the movable plate to move horizontally and has a hard limit structure. The wireless charging base is connected to the movable plate through a spring damper.

[0007] Preferably, the drive assembly includes a guide rod fixed to one side of the movable plate, a slide and an electric push rod are mounted on the top of the mounting plate by screws, the guide rod is slidably connected in the slide, and the telescopic end of the electric push rod is fixedly connected to the movable plate by screws.

[0008] Preferably, the drive assembly further includes a switch drive capable of controlling the start of the electric actuator; The switch driver includes a limit switch mounted on one side of the moving plate, and a screw for abutting the limit switch, the screw being fixed to one side of the wireless charging dock.

[0009] Preferably, the hard limiting structure includes a top rod fixed to one side of the wireless charging base, and a protrusion for abutting against the top rod is fixed to one side of the movable plate.

[0010] Preferably, the movable platform includes a slide rail fixed to the bottom of the mounting plate and a slide table slidably connected to the slide rail. One end of the slide table is fixedly connected to the movable plate, and the other end of the slide table is fixedly connected to a buckle.

[0011] Preferably, the wireless charging base has a groove in the middle, and an output port for cable to be led out is provided in the groove. The spring damper is installed on both sides of the outer ring of the groove.

[0012] Preferably, the wireless charging telescopic charging station also includes a bellows cover disposed between the wireless charging base and the movable plate, wherein the two ends of the bellows cover are fixedly connected to the wireless charging base and the inner wall of the charging station body respectively by screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The movable platform in the protective structure of this utility model is fixedly connected to the movable plate of the anti-collision telescopic structure, and can move horizontally synchronously with the extension and retraction of the wireless charging base; the buckle clamps and fixes the cable, so that the cable moves synchronously with the movable platform, avoiding relative friction between the cable and the sheet metal opening of the charging pile or internal components, reducing the risk of leakage caused by cable wear, and improving charging reliability.

[0014] This utility model's wireless charging base is connected to a moving plate via a spring damper. When an AGV or unmanned vehicle collides with the wireless charging base, the spring damper first absorbs the impact force, reducing the physical damage to the wireless charging base and transmitting coil caused by direct impact. When the impact force exceeds the buffer limit of the spring damper, the wireless charging base drives the screw to contact the limit switch on the moving plate, triggering the electric push rod to retract, allowing the wireless charging base to quickly retract into the pile body, avoiding deformation of the mechanism caused by continuous collisions. At the same time, the hard limit structure can limit the excessive displacement of the wireless charging base, providing double protection against damage to the telescopic mechanism due to overload. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of this utility model; Figure 2 This is a schematic diagram of the internal structure of the pile body of this utility model; Figure 3 This is a schematic diagram of the anti-collision telescopic structure of this utility model; Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the bottom of the mounting plate of this utility model; Figure 6 This is a utility model Figure 5 Enlarged view of point B in the middle.

[0016] In the diagram: 1. Pile body; 2. Mounting plate; 3. Wireless charging base; 4. Anti-collision telescopic structure; 5. Protective structure; 6. Accordion cover; 501. Mobile station; 502. Clip; 401. Moving plate; 402. Drive assembly; 403. Spring damper; 4021, Guide rod; 4022, Slide block; 4023, Electric push rod; 4024, Limit switch; 4025, Screw; 4026, Push rod; 4027, Protrusion; 5011, slide rail; 5012, slide table; 301, groove; 302, output port. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 This utility model provides a technical solution: a wireless retractable charging pile, including a pile body 1, a mounting plate 2 fixed to the inner cavity of the pile body 1 by screws, and a wireless charging base 3 disposed on one side of the pile body 1. The wireless charging base 3 is provided with a transmitting coil. An anti-collision retractable structure 4 for driving the wireless charging base 3 to move horizontally is installed above the mounting plate 2, and a protective structure 5 for the cable to move with the anti-collision retractable structure 4 is provided below the mounting plate 2. The mounting plate 2 divides the driving function and the cable protection function into upper and lower sections to avoid mutual interference when the two are running. The protective structure 5 includes a movable platform 501 that moves synchronously with the anti-collision telescopic structure 4. The bottom of the movable platform 501 is fixed with a buckle 502 that can secure the cable. The buckle 502 secures the cable. When the movable platform 401 moves horizontally, the sliding table 5012 slides synchronously on the slide rail 5011, causing the buckle 502 and the cable to move together, thus achieving the following movement of the cable and the anti-collision telescopic structure 4. This ensures the relative position of the cable, protecting it from wear and tear while also making the wiring inside the pile body 1 more standardized.

[0019] The anti-collision telescopic structure 4 includes a movable plate 401 and a drive assembly 402 that drives the movable plate 401 to move horizontally and has a hard limiting structure. The wireless charging base 3 is connected to the movable plate 401 through a spring damper 403. Utilizing the buffering characteristics of the spring damper 403, it absorbs part of the impact force when a collision occurs, reducing the physical damage to the transmitting coil inside the wireless charging base 3 caused by direct impact.

[0020] The drive assembly 402 includes a guide rod 4021 fixed to one side of the movable plate 401. A slide block 4022 and an electric push rod 4023 are mounted on the top of the mounting plate 2 by screws. The guide rod 4021 is slidably connected in the slide block 4022. The telescopic end of the electric push rod 4023 is fixedly connected to the movable plate 401 by screws.

[0021] When the electric push rod 4023 is started, it pushes the moving plate 401 to move horizontally. The guide rod 4021 on one side of the moving plate 401 slides synchronously in the slide block 4022 to ensure the stability of the moving direction of the moving plate 401. The wireless charging base 3 is connected to the moving plate 401 through the spring damper 403 and extends or retracts with the moving plate 401.

[0022] The drive assembly 402 also includes a switch drive that can control the start of the electric push rod 4023; The switch driver includes a limit switch 4024 mounted on one side of the movable plate 401, and a screw 4025 for abutting the limit switch 4024, the screw 4025 being fixed to one side of the wireless charging dock 3.

[0023] When the transmitting coil inside the wireless charging base 3 is subjected to an external force of less than 180 degrees in any direction, it drives the screw 4025 to move, causing the screw 4025 to abut against the limit switch 4024 and quickly activate the electric push rod 4023 to retract. This prevents the wireless charging base 3 from being continuously impacted and causing structural deformation, achieving active protection by retracting upon collision and improving the safety of the device in unattended scenarios.

[0024] The hard limiting structure includes a top rod 4026 fixed to one side of the wireless charging base 3, and a protrusion 4027 fixed to one side of the moving plate 401 for contacting the top rod 4026.

[0025] When the AGV or unmanned vehicle collides with the wireless charging base 3, the spring damper 403 first compresses to absorb the impact force. If the impact force exceeds the buffer limit, the wireless charging base 3 shifts relative to the moving plate 401, causing the screw 4025 on one side to abut against the limit switch 4024 on the moving plate 401, triggering the electric push rod 4023 to retract, so that the wireless charging base 3 retracts into the pile body 1. At the same time, the top rod 4026 on one side of the wireless charging base 3 abuts against the protrusion 4027 on the moving plate 401, limiting the excessive displacement of the wireless charging base 3.

[0026] The movable platform 501 includes a slide rail 5011 fixed to the bottom of the mounting plate 2 and a slide table 5012 slidably connected to the slide rail 5011. One end of the slide table 5012 is fixedly connected to the movable plate 401, and the other end of the slide table 5012 is fixedly connected to the buckle 502.

[0027] The wireless charging base 3 has a groove 301 in the middle, and an output port 302 for cable outgoing is provided in the groove 301. The spring dampers 403 are installed on both sides of the outer ring of the groove 301. The spring dampers 403 are evenly distributed around the wireless charging base 3. When the wireless charging base 3 is subjected to a collision in any direction within a range of less than 180 degrees, it helps to improve the synchronous force buffering among the spring dampers 403.

[0028] The wireless charging retractable charging station also includes a bellows cover 6 disposed between the wireless charging base 3 and the moving plate 401. The bellows cover 6 is fixedly connected to the inner walls of the wireless charging base 3 and the charging station body 1 respectively by screws at both ends. Both sides of the bellows cover 6 are protected by sealing rings. The charging station body 1 has screw holes for pre-tightening and fixing to the bellows cover 6. The bellows cover 6 meets the IP54 waterproof and dustproof requirements for outdoor scenarios, filling the gap between the wireless charging base 3 and the charging station body 1, preventing rainwater, dust, and other impurities from entering the device. The charging station body 1 adopts a waterproof design, with a sealing ring inside the door. The selected fan kit has an IP54 waterproof and dustproof certification level. The connection port with the charging module is protected by the bellows cover 6, which has sealing rings on both sides. The bellows cover between the wireless charging base and the charging station body effectively prevents rainwater and dust from entering the device, reducing short circuits or performance degradation of the anti-collision retractable structure due to moisture and dust accumulation.

[0029] When in use, external power is transmitted to the wireless charging base 3 through a cable, converted into high-frequency alternating current by the internal circuit and fed into the transmitting coil, which generates an alternating magnetic field; the receiving coil of the device to be charged is in this alternating magnetic field, and an electromotive force is induced, which is converted into stable direct current after rectification and filtering inside the device to charge the device's battery. If the AGV or unmanned vehicle collides with the wireless charging base 3 due to inaccurate positioning or other reasons during the charging process, the anti-collision protection mechanism will be triggered first: the spring damper 403 will first compress and absorb the impact force of the collision, reducing the physical damage to the wireless charging base 3 and the transmitting coil caused by the direct impact. If the impact force exceeds the buffer limit of the spring damper 403, the wireless charging base 3 will be displaced relative to the moving plate 401, and the screw 4025 on one side will move with the wireless charging base 3 and abut against the limit switch 4024 on the moving plate 401. After the limit switch 4024 is triggered, it sends a signal to the control system, which immediately instructs the electric push rod 4023 to retract, causing the moving plate 401 and the wireless charging base 3 to quickly retract into the pile body 1. During the retraction process, if the limit switch 4024 malfunctions, the top rod 4026 on one side of the wireless charging base 3 will abut against the protrusion 4027 on the moving plate 401, limiting the excessive displacement of the wireless charging base 3 and preventing overload damage to the anti-collision telescopic structure 4. At the same time, the slide 5012 of the cable protection structure 5 retracts synchronously with the moving plate 401. The buckle 502 at the bottom of the slide 5012 drives the cable to move along with the slide 5012, so that the cable always maintains a relatively fixed positional relationship with the wireless charging base 3, preventing the cable from rubbing against the sheet metal opening and internal components of the charging pile 1. The bellows cover 6 then retracts.

[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wireless retractable charging station, characterized in that: It includes a pile body (1), an installation plate (2) fixed to the inner cavity of the pile body (1) by screws, and a wireless charging base (3) set on one side of the pile body (1). An anti-collision telescopic structure (4) for driving the wireless charging base (3) to move horizontally is installed above the installation plate (2). Below the mounting plate (2) is a protective structure (5) that allows the cable to move with the anti-collision telescopic structure (4); The protective structure (5) includes a movable platform (501) that can move synchronously with the anti-collision telescopic structure (4). The bottom of the movable platform (501) is fixed with a buckle (502) that can clamp the cable by screws. The anti-collision telescopic structure (4) includes a movable plate (401) and a drive assembly (402) that drives the movable plate (401) to move horizontally and has a hard limit structure. The wireless charging base (3) is connected to the movable plate (401) through a spring damper (403).

2. The wireless retractable charging station according to claim 1, characterized in that: The drive assembly (402) includes a guide rod (4021) fixed to one side of the movable plate (401). A slide (4022) and an electric push rod (4023) are installed on the top of the mounting plate (2) by screws. The guide rod (4021) is slidably connected in the slide (4022). The telescopic end of the electric push rod (4023) is fixedly connected to the movable plate (401) by screws.

3. The wireless retractable charging station according to claim 2, characterized in that: The drive assembly (402) also includes a switch drive capable of controlling the start of the electric push rod (4023); The switch drive includes a limit switch (4024) mounted on one side of the movable plate (401) and a screw (4025) for abutting the limit switch (4024), the screw (4025) being fixed to one side of the wireless charging dock (3).

4. The wireless charging retractable charging station according to claim 3, characterized in that: The hard limiting structure includes a top rod (4026) fixed to one side of the wireless charging base (3), and a protrusion (4027) fixed to one side of the movable plate (401) for contacting the top rod (4026).

5. The wireless charging retractable charging station according to claim 4, characterized in that: The movable platform (501) includes a slide rail (5011) fixed to the bottom of the mounting plate (2) and a slide table (5012) slidably connected to the slide rail (5011). One end of the slide table (5012) is fixedly connected to the movable plate (401), and the other end of the slide table (5012) is fixedly connected to the buckle (502).

6. The wireless retractable charging station according to claim 1, characterized in that: The wireless charging base (3) has a groove (301) in the middle, and an output port (302) for cable to be led out is provided in the groove (301). The spring damper (403) is installed on both sides of the outer ring of the groove (301).

7. The wireless retractable charging station according to claim 1, characterized in that: It also includes a bellows cover (6) disposed between the wireless charging base (3) and the moving plate (401), the two ends of which are fixedly connected to the inner walls of the wireless charging base (3) and the pile body (1) respectively by screws.

Citation Information

Patent Citations

  • Telescopic wireless automatic charging pile device

    CN211543293U