A plug drop protection structure for a charging station

By incorporating a protective structure consisting of a rectangular box, adjustment rod, pin, spring, and airbag on the charging pile plug, the problem of damage when the plug falls is solved, thus improving safety and durability.

CN224458830UActive Publication Date: 2026-07-03GARAGE NO 7 NEW ENERGY TECH (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GARAGE NO 7 NEW ENERGY TECH (SHENZHEN) CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Charging pile plugs are prone to falling if not fully inserted or handled improperly, resulting in cracks in the outer casing, damage to internal components, and safety risks.

Method used

Design a protective structure comprising a rectangular box, an adjusting rod, a pin, a spring, a frame, and an airbag. The rigid frame disperses the impact force, and the airbag absorbs energy, reducing damage when the plug falls.

Benefits of technology

It effectively reduces cracks in the plug shell and damage to internal components, improving the safety and durability of charging pile plugs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of charging pile plug technology, and discloses a charging pile plug drop protection structure, including a plug body, a handle installed on the surface of the plug body, a transmission line installed on the surface of the plug body, a connector installed on the surface of the plug body, and a protective structure provided on the surface of the plug body. The protective structure includes a rectangular box, which is fixedly connected to the surface of the plug body. An adjusting rod is inserted into the inner wall of the rectangular box, and a pin slides through the surface of the rectangular box. A spring A is sleeved on the arc surface of the pin. By setting the protective structure, the plug of this charging pile achieves the following effect: when the plug falls, the rigid frame contacts the ground first to disperse the impact force, and the airbag A absorbs energy through elastic deformation, reducing the impact on the plug body. This effectively reduces problems such as shell cracks and internal component damage caused by the plug body falling, improving the safety and durability of the charging pile plug.
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Description

Technical Field

[0001] This utility model relates to the field of plug technology for charging piles, specifically a plug drop protection structure for charging piles. Background Technology

[0002] The plug of a charging station is a key component used to connect electric vehicles to charging equipment. Its design must meet the requirements of safe and efficient charging, and it comes in various types depending on different charging standards and application scenarios. Common charging station plugs are mostly rectangular or cylindrical in shape, and the outer shell is made of insulating and high-temperature resistant materials to prevent leakage and mechanical damage. The plug contains multiple metal terminals for transmitting electrical energy and data signals.

[0003] When using charging stations, some users often fail to properly insert the plug into the interface due to improper operation. Additionally, wet or slippery hands or unstable grip can cause the heavy charging plug to fall to the ground. The powerful impact upon impact can not only crack or damage the sturdy outer shell but also cause irreversible damage to the internal precision components. If the shell protection fails, the internal live components are exposed, posing safety risks such as short circuits and leakage. Therefore, we propose a charging station plug drop protection structure. Utility Model Content

[0004] The purpose of this utility model is to provide a plug drop protection structure for charging piles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plug drop protection structure for a charging pile, comprising a plug body, a handle mounted on the surface of the plug body, a transmission line mounted on the surface of the plug body, a connector mounted on the surface of the plug body, and a protective structure provided on the surface of the plug body. The protective structure includes a rectangular box, which is fixedly connected to the surface of the plug body. An adjusting rod is inserted into the inner wall of the rectangular box, and a pin slides through the surface of the rectangular box. A spring A is fitted onto the arc surface of the pin, and both ends of the spring A are fixedly connected to the pin and the rectangular box, respectively. A circular hole is opened on the surface of the adjusting rod, and the size of the pin matches the size of the circular hole. A frame is fixedly connected to one end of the adjusting rod, and an airbag A is fixedly connected to the outer surface of the frame.

[0006] The effect achieved by the above components is as follows: by setting up a protective structure, the rigid frame contacts the ground first to disperse the impact force when the plug falls, and the airbag A absorbs energy through elastic deformation, reducing the impact on the plug body. This effectively reduces problems such as shell cracks and internal component damage caused by the plug body falling, and improves the safety and durability of the charging pile plug.

[0007] Preferably, one end of the adjusting rod located inside the rectangular box is fixedly connected to a spring B, and the other end of the spring B is fixedly connected to the inner wall of the rectangular box.

[0008] The effect achieved by the above components is that the adjusting rod will gradually insert into the rectangular box with the help of the contraction force of the spring B, and the spring B will facilitate the contraction of the airbag A.

[0009] Preferably, a rectangular rod is fixedly connected to the surface of the frame, and the rectangular rod is attached to the surface of the plug body.

[0010] The effect achieved by the above components is that the movement of the frame causes the rectangular rod to slide on the surface of the plug body, and the rectangular rod improves the stability of the frame.

[0011] Preferably, an airbag B and an airbag C are bonded to the surface of the plug body.

[0012] The effect achieved by the above components is that the airbags B and C on the surface of the plug body will also come into contact with the ground, further reducing the impact on the plug body through deformation buffering.

[0013] Preferably, one end of the pin is fixedly connected to a rope, the other end of the rope passes through the handle, and the end of the rope away from the pin is fixedly connected to a pull ring.

[0014] The effect achieved by the above components is as follows: pulling the pull ring will pull the rope, the rope will pull the pin, and the pull ring will facilitate pulling the pin.

[0015] Preferably, a bracket is fixedly connected to the surface of the plug body, and a roller is rotatably connected to the surface of the bracket.

[0016] The effect achieved by the above components is as follows: the rope moves and slides along the surface of the roller, the roller rotates in the bracket with the force of the rope's movement, the bracket supports the rope, thus facilitating the pulling of the pin out of the round hole, and the roller reduces the friction of the rope sliding on the surface of the bracket, thus facilitating the pulling of the pin.

[0017] Preferably, airbags A, B, and C are all made of silicone, and the surfaces of airbags A, B, and C are provided with anti-slip stripes.

[0018] The effects achieved by the above components are as follows: airbags A, B, and C deform under pressure, and the impact force is absorbed by the elasticity of the silicone material and the compression of the internal gas. The anti-slip stripes on the surface of airbags A, B, and C can increase the friction with the ground or other contact surfaces.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This utility model, through the setting of a protective structure, achieves the following in the initial state: the rectangular box is fixed on the surface of the plug body, the adjusting rod is inserted into the rectangular box, the spring B is in a stretched state, the pin passes through the surface of the rectangular box and is locked into the round hole of the adjusting rod, the spring A is in a natural state, keeping the pin in the locked position. At this time, the frame and airbag A are located outside the plug body, forming the initial protection range. When the plug body is accidentally dropped, the frame provides support, and its rigid structure can disperse part of the impact force. The airbag A outside the frame is deformed by compression, and the elasticity of the silicone material and the compression of the internal gas absorb the impact force, thereby effectively reducing the problems of shell cracks and internal component damage caused by the plug body falling, improving the safety and durability of the charging pile plug. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0023] Figure 3 This is a schematic diagram of the protective structure of this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged view of point A in the image;

[0025] Figure 5 This is a schematic diagram of the frame and airbag A of this utility model.

[0026] In the diagram: 1. Plug body; 2. Handle; 3. Transmission line; 4. Connector; 5. Protective structure; 501. Rectangular box; 502. Adjusting rod; 503. Plug; 504. Spring A; 505. Round hole; 506. Frame; 507. Airbag A; 508. Spring B; 509. Rectangular rod; 510. Airbag B; 511. Airbag C; 512. Rope; 513. Pull ring; 514. Bracket; 515. Roller. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-2This utility model provides a technical solution: a plug drop protection structure for a charging pile, including a plug body 1, a handle 2 mounted on the surface of the plug body 1, a transmission line 3 mounted on the surface of the plug body 1, a connector 4 mounted on the surface of the plug body 1, and a protective structure 5 on the surface of the plug body 1. The protective structure 5 includes a rectangular box 501, which is fixedly connected to the surface of the plug body 1. An adjusting rod 502 is inserted into the inner wall of the rectangular box 501, and a pin 503 slides through the surface of the rectangular box 501. A spring A504 is sleeved on the arc surface of the pin 503, and the two ends of the spring A504 are respectively connected to the pin 503 and the rectangular box 502. The shape box 501 is fixedly connected, and the surface of the adjusting rod 502 has a round hole 505. The size of the pin 503 is adapted to the size of the round hole 505. One end of the adjusting rod 502 is fixedly connected to the frame 506, and the outer surface of the frame 506 is fixedly connected to the airbag A507. By setting the protective structure 5, when the plug falls, the rigid frame 506 contacts the ground first to disperse the impact force, and the airbag A507 absorbs energy through elastic deformation, reducing the impact on the plug body 1. This effectively reduces the problems of shell cracks and internal component damage caused by the fall of the plug body 1, and improves the safety and durability of the charging pile plug.

[0029] Reference Figure 3 and Figure 4 and Figure 5As shown in this embodiment: One end of the adjusting rod 502 located inside the rectangular box 501 is fixedly connected to a spring B508, and the other end of the spring B508 is fixedly connected to the inner wall of the rectangular box 501. The adjusting rod 502 gradually inserts into the rectangular box 501 with the help of the contraction force of the spring B508, which facilitates the contraction of the airbag A507. A rectangular rod 509 is fixedly connected to the surface of the frame 506, and the rectangular rod 509 is attached to the surface of the plug body 1. Movement of the frame 506 causes the rectangular rod 509 to slide on the surface of the plug body 1, thus improving the stability of the frame 506. An airbag B510 and an airbag C511 are bonded to the surface of the plug body 1. The airbags B510 and C511 on the surface of the plug body 1 also contact the ground, further reducing the impact on the plug body 1 through deformation buffering. One end of the pin 503 is fixedly connected to a rope 512, and the other end of the rope 512 passes through the handle 2. The end of the rope 512 away from the pin 503 is fixedly connected to a pull ring 513. Pulling the pull ring 513 will pull the rope 512, which in turn will pull the pin 503. The pull ring 513 facilitates the pulling of the pin 503. A bracket 514 is fixedly connected to the surface of the plug body 1. A roller 515 is rotatably connected to the surface of the bracket 514. When the rope 512 moves, it slides along the surface of the roller 515. The roller 515 rotates within the bracket 514 with the help of the force of the rope 512's movement. The bracket 514 supports the rope 512, making it easier to pull the pin 503 out of the round hole 505. The roller 515 reduces the friction of the rope 512 sliding on the surface of the bracket 514, further facilitating the pulling of the pin 503. Airbags A507, B510, and C511 are all made of silicone. Anti-slip stripes are formed on the surface of all three airbags. When compressed, airbags A507, B510, and C511 deform, absorbing the impact force through the elasticity of the silicone material and the compression of the internal gas. The anti-slip stripes on the surface of airbags A507, B510, and C511 increase friction with the ground or other contact surfaces.

[0030] Working principle: In the initial state, the rectangular box 501 is fixed to the surface of the plug body 1, the adjusting rod 502 is inserted into the rectangular box 501, the spring B508 is in the stretched state, the pin 503 passes through the surface of the rectangular box 501 and is engaged in the round hole 505 of the adjusting rod 502, and the spring A504 is in the unstressed state, keeping the pin 503 in the locked position. At this time, the frame 506 and the airbag A507 are located outside the plug body 1, forming the initial protection range. When the plug body 1 is accidentally dropped, the frame 506 provides support, and its rigid structure can disperse part of the impact force. The airbag A507 outside the frame 506... When 507 is compressed, it deforms. The elasticity of the silicone material and the compression of the internal gas absorb the impact force. In addition, the airbags B510 and C511 on the surface of the plug body 1 also come into contact with the ground, further reducing the impact on the plug body 1 through deformation cushioning. The anti-slip stripes on the surface of airbags A507, B510, and C511 can increase the friction with the ground or other contact surfaces, reducing the slippage of the plug body 1 when it is placed or dropped, making it more stable, and further reducing the risk of secondary damage caused by slippage. When the plug body 1 needs to be used, firstly... First, hold the handle 2 and move the plug body 1 to the charging port position. Then, insert your finger into the pull ring 513 and pull it. The pull ring 513 will pull the rope 512. The rope 512 will slide along the surface of the roller 515, thereby pulling the pin 503. The roller 515 will rotate within the bracket 514 with the help of the moving rope 512. The bracket 514 supports the rope 512, making it easier to pull the pin 503 out of the round hole 505. The roller 515 reduces the friction of the rope 512 sliding on the surface of the bracket 514, thus facilitating the pulling of the pin 503. When the rope 512 pulls the pin 503 out of the round hole 505, the spring A504 is in a stretched state. At this time, the adjusting rod 502 will gradually insert into the rectangular box 501 with the help of the contraction force of the spring B508. The adjusting rod 502 will drive the frame 506 and the airbag A507 to move simultaneously. The movement of the frame 506 will drive the rectangular rod 509 to slide on the surface of the plug body 1. The rectangular rod 509 improves the stability of the frame 506. When the frame 506 is fitted on the surface of the plug body 1, the connector 4 is exposed, which makes it easy to insert the connector 4 on the surface of the plug body 1 into the charging port for charging.

[0031] 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.

[0032] 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 plug drop protection structure for a charging pile, comprising a plug body (1), a handle (2) mounted on the surface of the plug body (1), a transmission line (3) mounted on the surface of the plug body (1), a connector (4) mounted on the surface of the plug body (1), and a protective structure (5) provided on the surface of the plug body (1), characterized in that: The protective structure (5) includes a rectangular box (501), which is fixedly connected to the surface of the plug body (1). An adjusting rod (502) is inserted into the inner wall of the rectangular box (501). A pin (503) slides through the surface of the rectangular box (501). A spring A (504) is sleeved on the arc surface of the pin (503). The two ends of the spring A (504) are fixedly connected to the pin (503) and the rectangular box (501) respectively. A round hole (505) is opened on the surface of the adjusting rod (502). The size of the pin (503) is adapted to the size of the round hole (505). A frame (506) is fixedly connected to one end of the adjusting rod (502). An airbag A (507) is fixedly connected to the outer surface of the frame (506).

2. The plug drop protection structure of a charging pile according to claim 1, characterized in that: The adjusting rod (502) is fixedly connected to a spring B (508) at one end inside the rectangular box (501), and the other end of the spring B (508) is fixedly connected to the inner wall of the rectangular box (501).

3. The plug drop protection structure of a charging pile according to claim 1, characterized in that: A rectangular rod (509) is fixedly connected to the surface of the frame (506), and the rectangular rod (509) is attached to the surface of the plug body (1).

4. The plug drop protection structure of a charging pile according to claim 1, characterized in that: The surface of the plug body (1) is bonded to the airbag B (510), and the surface of the plug body (1) is bonded to the airbag C (511).

5. The plug drop protection structure for a charging station of claim 1, wherein: One end of the pin (503) is fixedly connected to a rope (512), the other end of the rope (512) passes through the handle (2), and the end of the rope (512) away from the pin (503) is fixedly connected to a pull ring (513).

6. The plug drop protection structure for a charging station of claim 1, wherein: A bracket (514) is fixedly connected to the surface of the plug body (1), and a roller (515) is rotatably connected to the surface of the bracket (514).

7. The plug fall protection structure of a charging pile according to any one of claims 1-6, characterized in that: The airbags A (507), B (510), and C (511) are all made of silicone, and anti-slip stripes are formed on the surface of the airbags A (507), B (510), and C (511).