A waterproof charging interface of a charging pile provided with magnetic attraction alignment
By using magnetic positioning grooves, tilting guide structures, and waterproof drainage systems, the problems of decreased alignment accuracy and water leakage caused by magnet displacement and seal deformation are solved, thereby improving the stability and safety of the charging interface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIGEN ELECTRIC POWER ELECTRONICS TECH CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-10
AI Technical Summary
Magnets may experience slight displacement under vibration and impact, leading to a decrease in magnetic alignment accuracy. Seals may deform under frequent insertion and removal and alternating high and low temperatures, resulting in loose sealing surfaces. Rainwater may seep in, causing short circuits and affecting the lifespan and safety of the charging interface.
The system employs a precise magnetic attraction between the magnetic positioning groove and the plug's magnetic protrusion, combined with an inclined guide structure and a sealing ring to enhance alignment stability. The drainage pipe and sealing ring made of polytetrafluoroethylene form a waterproof drainage system that blocks seepage paths and promptly drains accumulated water.
To ensure stable docking accuracy during long-term use, prevent moisture infiltration, extend the life of the charging interface, improve safety, avoid short circuits, and enhance sealing and corrosion resistance.
Smart Images
Figure CN224476841U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging pile technology, specifically a waterproof charging interface for a charging pile with magnetic alignment. Background Technology
[0002] With the booming development of the new energy vehicle industry, the performance of the charging interface of charging piles, as a key infrastructure, is of paramount importance. The safety and convenience of the charging interface are of great concern. Magnetic alignment technology, with its advantages of not requiring precise manual plugging and unplugging and a smoother docking process, is gradually being applied to the design of charging pile interfaces. Traditional magnetic alignment charging pile interfaces usually consist of a plug and a socket with magnetic components. The plug is connected to the vehicle's charging port, and the socket is integrated into the charging pile. During operation, the attraction of opposite magnetic forces guides the plug and socket to automatically align, reducing the difficulty of manual operation and improving the convenience of use at night or in low-light conditions.
[0003] However, during long-term use, the magnet may experience slight displacement due to vibration, collision, etc., which will lead to a decrease in alignment accuracy. In addition, most existing seals are single ring rubber rings, which are prone to deformation under the influence of frequent insertion and removal friction and alternating high and low temperatures. This results in a loose seal, allowing rainwater to seep in, causing short circuits and affecting the lifespan and safety of the charging interface. Utility Model Content
[0004] The purpose of this utility model is to provide a waterproof charging interface for charging piles with magnetic alignment, in order to solve the problems mentioned in the background art, such as the magnet may be slightly displaced due to vibration, collision, etc., which leads to a decrease in alignment accuracy. In addition, the existing sealing parts are mostly single ring rubber rings, which are prone to deformation under the influence of frequent insertion and removal friction and alternating high and low temperatures, resulting in poor sealing surface adhesion, allowing rainwater to seep in, causing short circuits, and affecting the service life and safety of the charging interface.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof charging interface for a charging pile with magnetic alignment, including a protective shell, which is the main outer shell protecting the charging pile, and a charging socket body installed inside the protective shell, and the charging socket body is the main control core device of the charging pile.
[0006] The protective shell has a mounting bracket fixed to the back by bolts, and the mounting bracket is fixed to the wall by bolts. The charging socket body has a docking cavity, and a magnetic positioning groove is installed at the opening of the docking cavity. The magnetic positioning groove is magnetically connected to the plug magnetic protrusion.
[0007] The magnetic protrusion of the plug is sleeved on the socket of the charging plug, and a pipe hole is opened in the mating cavity. The pipe hole passes through the lower end of the magnetic positioning groove and is connected to the drain pipe. The drain pipe passes through the protective shell. The charging plug is electrically connected to the main body of the charging socket through a cable.
[0008] By adopting the above technical solution, the magnetic alignment function and waterproof drainage structure are integrated through the combination of components such as protective shell and mounting bracket.
[0009] Preferably, the protective shell and the mounting bracket are fitted together to form a shell that encloses the main body of the charging socket.
[0010] By adopting the above technical solution, the protective shell and the mounting bracket are fitted together to form a shell that covers the main body of the charging socket, which enhances the protection of internal components, reduces the impact of the external environment on the main body of the charging socket, and extends its service life.
[0011] Preferably, a sealing ring is provided at the connection between the magnetic positioning groove and the protective shell, and the bottom end of the protective shell is penetrated by a cable.
[0012] By adopting the above technical solution, the sealing ring at the connection between the magnetic positioning groove and the protective shell, as well as the cable penetration at the bottom of the protective shell, further enhance the sealing performance of the interface and effectively prevent moisture from seeping in from the connection gap and the cable penetration.
[0013] Preferably, the inner wall of the docking cavity is inclined toward the magnetic positioning groove, and the docking cavity accommodates the charging plug.
[0014] By adopting the above technical solution, the tilting of the inner wall of the docking cavity facilitates the smooth entry of the charging plug, improves the efficiency and accuracy of magnetic alignment, and reduces the operational difficulty during the docking process.
[0015] Preferably, the drain pipe is made of polytetrafluoroethylene material, and a sealing ring is provided at the connection between the drain pipe and the drain hole.
[0016] By adopting the above technical solution, the PTFE drain pipe and the sealing ring at the connection point improve the corrosion resistance and sealing performance of the drainage structure, ensuring smooth drainage and preventing leakage.
[0017] Preferably, the charging plug and the magnetic plug protrusion are integrally formed, and the outer surface of the charging plug is covered with a sealing sleeve made of magnetic rubber.
[0018] By adopting the above technical solution, the integrated molding structure of the charging plug and the plug magnetic protrusion enhances the stability of the components, while the magnetic rubber sealing sleeve further improves the sealing effect between the charging plug and the docking cavity.
[0019] Preferably, the sealing sleeve of the charging plug fits tightly against the inner wall of the docking cavity.
[0020] By adopting the above technical solution, the sealing sleeve of the charging plug fits tightly against the inner wall of the docking cavity, forming an effective waterproof barrier to prevent external moisture from entering the docking cavity and ensure circuit safety.
[0021] Compared with the prior art, the beneficial effects of this utility model are: the charging pile is equipped with a waterproof charging interface for magnetic alignment.
[0022] 1. Through the precise magnetic attraction between the magnetic positioning groove and the plug magnetic protrusion, combined with the inclined guide structure of the inner wall of the docking cavity facing the magnetic positioning groove, the magnetic positioning groove is fixed at the opening of the docking cavity and forms a rigid connection with the charging socket body, reducing the movement space of the magnetic components. The sleeve structure of the plug magnetic protrusion and the charging plug further enhances the stability of the alignment components. The inclined guide design provides physical guidance for the charging plug based on the magnetic force, avoiding alignment deviation caused by the slight displacement of the magnet, and ensuring that the docking accuracy remains stable during long-term use.
[0023] 2. The sealing ring at the connection between the magnetic positioning groove and the protective shell can block water seepage gaps at the interface edge. The magnetic rubber sealing sleeve on the outer surface of the charging plug fits tightly with the inner wall of the docking cavity, forming a surrounding sealing barrier. Its elastic material can adapt to the friction wear caused by frequent plugging and unplugging, and its magnetic properties can enhance the fitting force. The closed shell formed by the fitting of the protective shell and the mounting bracket further isolates the influence of the external environment. The multiple sealing effects work together to effectively resist the aging effect of alternating high and low temperatures on the seals and prevent rainwater from seeping into the docking cavity.
[0024] 3. When a small amount of water breaks through the sealing structure and enters the docking cavity, the cooperation between the drain hole and the drain pipe can quickly drain the accumulated water. The drain hole passes through the lower end of the magnetic positioning groove and is connected to the docking cavity, which can collect the water in the cavity in time. The sealing ring at the connection between the drain pipe and the drain hole can prevent secondary leakage during the drainage process. The drainage system and the sealing structure form a waterproof system that combines prevention and drainage, avoiding water accumulation in the docking cavity and causing short circuit. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;
[0026] Figure 2 A three-dimensional structural diagram of the charging socket body and charging plug of this utility model;
[0027] Figure 3 A three-dimensional structural diagram of the magnetic positioning groove, the main body of the charging socket, and the charging plug of this utility model;
[0028] Figure 4 This is a three-dimensional structural diagram showing the disassembled charging socket body and charging plug of this utility model.
[0029] Figure 5 A three-dimensional structural diagram of the charging socket body and drain pipe installation of this utility model;
[0030] Figure 6 This is a schematic diagram showing the location and structure of the internal pipe holes of the charging socket body of this utility model.
[0031] In the diagram: 1. Protective shell; 2. Mounting bracket; 3. Magnetic positioning groove; 4. Charging socket body; 5. Connecting cavity; 6. Pipe hole; 7. Drain pipe; 8. Cable; 9. Charging plug; 10. Plug magnetic protrusion. Detailed Implementation
[0032] 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.
[0033] Please see Figures 1-6 This utility model provides a technical solution: a waterproof charging interface for a charging pile with magnetic alignment, including a protective shell 1, a mounting bracket 2, a magnetic positioning groove 3, a charging socket body 4, a docking cavity 5, a pipe hole 6, a drain pipe 7, a cable 8, a charging plug 9, and a plug magnetic protrusion 10.
[0034] Among them, the protective shell 1 is the main outer shell for protecting the charging pile. The charging socket body 4 is installed inside the protective shell 1, and the charging socket body 4 is the main control core device of the charging pile.
[0035] A mounting bracket 2 is fixed to the back of the protective shell 1 by bolts, and the mounting bracket 2 is fixed to the wall by bolts. The protective shell 1 and the mounting bracket 2 fit together to form a shell that encloses the charging socket body 4. A docking cavity 5 is opened inside the charging socket body 4, and a magnetic positioning groove 3 is installed at the opening of the docking cavity 5. The magnetic positioning groove 3 is magnetically connected to the plug magnetic protrusion 10. A sealing ring is provided at the connection between the magnetic positioning groove 3 and the protective shell 1, and the bottom of the protective shell 1 is penetrated by a cable 8.
[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 Place the charging socket body 4 inside the protective shell 1, ensuring that the two are in the same position; fix the mounting bracket 2 to the back of the protective shell 1 with bolts, and then connect the mounting bracket 2 to the wall with bolts, so that the protective shell 1 and the mounting bracket 2 fit together to form a protective shell that covers the charging socket body 4.
[0037] A magnetic positioning groove 3 is installed at the opening of the docking cavity 5 of the charging socket body 4, and a sealing ring is added at the connection between the magnetic positioning groove 3 and the protective shell 1 to enhance the sealing foundation.
[0038] A pipe hole 6 is opened in the docking cavity 5 so that it passes through the lower end of the magnetic positioning groove 3; one end of the PTFE drain pipe 7 is connected to the pipe hole 6, and a sealing ring is installed at the connection. The other end extends through the protective shell 1 to the outside. One end of the cable 8 is connected to the internal circuit of the charging socket body 4, and the other end passes through the bottom of the protective shell 1 and is connected to the charging plug 9; a plug magnetic protrusion 10 is fitted at the socket of the charging plug 9, and a magnetic rubber sealing sleeve is fitted on the outer surface of the charging plug 9 to complete the overall assembly.
[0039] The plug magnetic protrusion 10 is fitted onto the socket of the charging plug 9, and a pipe hole 6 is opened in the mating cavity 5. The pipe hole 6 passes through the lower end of the magnetic positioning groove 3 and is connected to the drain pipe 7. The drain pipe 7 passes through the protective shell 1. The drain pipe 7 is made of polytetrafluoroethylene material, and a sealing ring is provided at the connection between the drain pipe 7 and the pipe hole 6. The charging plug 9 is electrically connected to the charging socket body 4 through the cable 8. The inner wall of the mating cavity 5 is inclined towards the magnetic positioning groove 3, and the mating cavity 5 accommodates the charging plug 9. The charging plug 9 and the plug magnetic protrusion 10 are integrally formed, and a sealing sleeve made of magnetic rubber is fitted on the outer surface of the charging plug 9. The sealing sleeve of the charging plug 9 is tightly fitted to the inner wall of the mating cavity 5.
[0040] Referring to the attached diagrams in the instruction manual Figures 1-6 When the user holds the charging plug 9 with the plug magnetic protrusion 10 close to the charging socket body 4, the magnetic positioning groove 3 and the plug magnetic protrusion 10 generate a magnetic attraction force, which drives the charging plug 9 to move towards the docking cavity 5; with the help of the inclined guide structure on the inner wall of the docking cavity 5, the charging plug 9 accurately enters the docking cavity 5, completing the magnetic alignment.
[0041] After the charging plug 9 is fully inserted, the magnetic rubber sealing sleeve on its outer surface fits tightly against the inner wall of the docking cavity 5, forming the first waterproof barrier; the sealing ring at the connection between the magnetic positioning groove 3 and the protective shell 1 further blocks the water seepage path. When a small amount of water enters the docking cavity 5, the water flows into the drain hole 6 under the action of gravity and is discharged through the drain pipe 7; the corrosion resistance of the drain pipe 7 and the sealing ring ensure that there is no leakage during the drainage process, and the fitting structure between the protective shell 1 and the mounting bracket 2 reduces external environmental interference.
[0042] After the alignment and sealing are completed, the charging plug 9 is electrically connected to the charging socket body 4 via the cable 8. Electrical energy is transmitted to the charging plug 9 via the cable 8 to charge the new energy vehicle. The structure at the bottom of the protective shell 1 where the cable 8 passes through ensures a stable connection and prevents water leakage. After charging is completed, the user applies external force to overcome the magnetic attraction force and pulls the charging plug 9 out of the docking cavity 5, and the interface returns to its initial protective state.
[0043] Working principle: When using the waterproof charging interface of the charging pile with magnetic alignment, the user holds the charging plug 9 with the plug magnetic protrusion 10 close to the charging socket body 4. The magnetic positioning groove 3 at the opening of the docking cavity 5 and the plug magnetic protrusion 10 generate a magnetic attraction force, which drives the charging plug 9 close to the docking cavity 5. The inner wall of the docking cavity 5 tilts towards the magnetic positioning groove 3, which helps the charging plug 9 to accurately enter the docking cavity 5 and complete the magnetic alignment.
[0044] After the charging plug 9 is fully inserted into the docking cavity 5, its outer surface magnetic rubber sealing sleeve is tightly fitted to the inner wall of the docking cavity 5, forming the first waterproof barrier. At the same time, the sealing ring at the connection between the magnetic positioning groove 3 and the protective shell 1 further enhances the sealing performance, preventing moisture from seeping in from the gaps. If a small amount of moisture enters the docking cavity 5, the moisture flows into the drain hole 6 by gravity and is discharged through the PTFE drain pipe 7. The sealing ring at the connection between the drain pipe 7 and the drain hole 6 prevents leakage. The protective shell 1 and the mounting bracket 2 fit together to reduce the impact of the external environment.
[0045] After the alignment and sealing are completed, the charging plug 9 is electrically connected to the charging socket body 4 via the cable 8. Electrical energy is transmitted to the charging plug 9 via the cable 8 to charge the vehicle. The structure at the bottom of the protective shell 1 where the cable 8 passes through ensures a stable connection and prevents water leakage, thus increasing the overall practicality.
[0046] 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 waterproof charging interface for a charging station with magnetic alignment, comprising: The protective shell (1) is the main outer shell for protecting the charging pile. The charging socket body (4) is installed inside the protective shell (1), and the charging socket body (4) is the main control core device of the charging pile. The features are as follows: the protective shell (1) has a mounting bracket (2) fixed on the back by bolts, and the mounting bracket (2) is fixed to the wall by bolts; the charging socket body (4) has a docking cavity (5) inside, and a magnetic positioning groove (3) is installed at the opening of the docking cavity (5), and the magnetic positioning groove (3) is magnetically connected to the plug magnetic protrusion (10); The plug magnetic protrusion (10) is fitted onto the socket of the charging plug (9), and a pipe hole (6) is opened in the mating cavity (5). The pipe hole (6) passes through the lower end of the magnetic positioning groove (3), and the pipe hole (6) is connected to the drain pipe (7). The drain pipe (7) passes through the protective shell (1). The charging plug (9) is electrically connected to the charging socket body (4) through the cable (8).
2. A waterproof charging interface for a charging pile with magnetic alignment as described in claim 1, characterized in that: The protective shell (1) and the mounting bracket (2) fit together to form a shell that encloses the main body (4) of the charging socket.
3. A waterproof charging interface for a charging pile with magnetic alignment as described in claim 1, characterized in that: A sealing ring is provided at the connection between the magnetic positioning groove (3) and the protective shell (1), and the bottom end of the protective shell (1) is penetrated by the cable (8).
4. A waterproof charging interface for a charging pile with magnetic alignment as described in claim 1, characterized in that: The inner wall of the docking cavity (5) is inclined toward the magnetic positioning groove (3), and the docking cavity (5) accommodates the charging plug (9).
5. A waterproof charging interface for a charging pile with magnetic alignment as described in claim 1, characterized in that: The drain pipe (7) is made of polytetrafluoroethylene material, and a sealing ring is provided at the connection between the drain pipe (7) and the drain hole (6).
6. A waterproof charging interface for a charging pile with magnetic alignment as described in claim 1, characterized in that: The charging plug (9) and the plug magnetic protrusion (10) are integrally formed, and the outer surface of the charging plug (9) is covered with a sealing sleeve made of magnetic rubber.
7. A waterproof charging interface for a charging pile with magnetic alignment as described in claim 6, characterized in that: The sealing sleeve of the charging plug (9) fits tightly against the inner wall of the docking cavity (5).