Integrated high-protection European standard AC double plug

By designing an integrated, high-protection European standard AC dual plug, using two sets of charging guns to connect to the charging pile and the vehicle, and equipped with a dustproof and multi-layer sealing structure, the problems of insufficient connection stability, dustproofness and sealing of the charging plug are solved, achieving high protection performance and charging safety.

CN224367220UActive Publication Date: 2026-06-16江苏奥功电能科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏奥功电能科技有限公司
Filing Date
2025-07-28
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing European standard AC charging plugs are inadequate in terms of connection stability, dustproofing, and sealing, affecting charging safety and stability. Furthermore, the charging handle structure is not well-designed, making it prone to loosening and malfunction.

Method used

The design features an integrated, high-protection European standard AC dual plug, with two sets of charging guns for connection to charging piles and vehicles. It is equipped with a dustproof structure and a multi-layer sealing structure. The charging port has a ring-shaped design with a limit slot, and internally includes a terminal mounting module and a tail fixing structure to enhance connection stability and sealing.

🎯Benefits of technology

It improves the stability and safety of the charging connection, prevents dust and moisture from entering, extends the life of the device, and ensures the reliability and safety of the charging process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224367220U_ABST
    Figure CN224367220U_ABST
Patent Text Reader

Abstract

The utility model relates to new energy automobile charging technical field especially relates to a integrated high protection european standard alternating current double plug, including alternating current double plug body, the alternating current double plug body includes the charging group for connecting charging, the charging group includes by two groups of charging gun, two groups charging gun are connected with charging stake and car respectively, the charging gun includes the charging handle of setting at the end, the front section of charging handle is provided with charging port, the charging port is provided with the gun body main part between charging handle, the charging port is provided with dustproof structure, is provided with charging module inside, the utility model discloses through setting two groups of charging gun that connects charging stake and car respectively, constitutes efficient charging group, has realized the stable charging of electric automobile. Charging port is equipped with dustproof structure, effectively blocks the dust invasion, sets up multilayer sealing structure between the gun body main part and port, strengthens the leakproofness, prevents rainwater and the like from entering, thereby realized high protection performance, guarantees charging safe and reliable.
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Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle charging technology, and in particular to an integrated high-protection European standard AC double plug. Background Technology

[0002] With the booming development of the electric vehicle industry, the importance of charging equipment is becoming increasingly prominent. As a key component for electric vehicle charging, the performance and safety of the European standard AC charging plug directly affect the user experience and charging safety of electric vehicles.

[0003] There are several pressing issues with existing European standard AC charging plug technology. Firstly, traditional charging plugs have a relatively simple charging assembly design, typically only providing basic charging functionality. The connection stability between the two charging guns and the charging station / vehicle is poor, easily becoming loose during frequent plugging and unplugging, leading to charging interruptions and even safety hazards. Furthermore, the charging ports lack effective dustproofing measures. In complex outdoor environments, dust and debris can easily enter the charging ports, affecting the normal operation of the charging module, reducing charging efficiency, and shortening device lifespan. Secondly, the sealing performance of the charging ports is insufficient. Existing charging plugs do not provide a tight enough seal between the main body and the charging port, allowing rainwater and moisture to easily penetrate, corroding internal components such as the charging terminals, and potentially causing short circuits and other malfunctions, seriously threatening charging safety. In addition, the charging handle's structural design is inadequate, with an unstable tail. During charging, pulling the cable can easily cause the connection between the charging handle and the main body to loosen, affecting charging stability.

[0004] In summary, existing European standard AC charging plugs have many shortcomings in terms of connection stability, dustproofing, sealing, and charging handle structure, making it difficult to meet the needs of the rapidly developing electric vehicle industry. Therefore, developing an integrated, highly protected European standard AC dual-plug is of significant practical importance to improve the safety, stability, and reliability of charging equipment. Utility Model Content

[0005] To address some of the problems existing in the prior art, this utility model provides an integrated high-protection European standard AC dual plug. This utility model uses two charging guns, one connected to the charging pile and the other to the vehicle, to form a high-efficiency charging group, achieving stable charging of electric vehicles. The charging port is equipped with a dustproof structure to effectively prevent dust intrusion; a multi-layer sealing structure is set between the main body of the charging gun and the port to enhance sealing and prevent rainwater from entering, thus achieving high protection performance and ensuring safe and reliable charging.

[0006] To achieve the above objectives, this utility model provides an integrated high-protection European standard AC double plug, including an AC double plug body. The AC double plug body includes a charging assembly for connecting to charging. The charging assembly includes two sets of charging guns, which are respectively connected to a charging pile and a vehicle. Each charging gun includes a charging handle at its end. A charging port is provided at the front of the charging handle. A gun body is provided between the charging port and the charging handle. A dustproof structure is provided at the charging port, and a charging module is provided inside.

[0007] As a further improvement of this utility model, in order to effectively prevent rainwater and moisture from entering the charging port and avoid short circuits and other faults caused by a humid environment, and to enhance the protective performance of the plug, the charging port includes an L socket, an N socket and a PE socket. The L socket, N socket and PE socket are also equipped with a CP socket and a PP socket. The charging port is equipped with charging terminals in conjunction with several sockets. A sealing structure is provided between the gun body and the charging port.

[0008] As a further improvement of this utility model, in order to increase the connection strength between the charging port and the main body of the gun, make the structure more stable, prevent the dustproof structure from falling off during use, and further ensure the cleanliness of the charging port, the charging port is provided with a certain thickness and is designed in a ring shape, surrounding the muzzle of the main body of the gun. The charging port is provided with a limiting slot around its perimeter, and the limiting slot is designed to cooperate with the dustproof structure.

[0009] As a further improvement of this utility model, in order to effectively prevent the charging terminal from loosening or shifting during use and to ensure the stability of current transmission, a terminal mounting module for fixing the charging terminal is provided inside the gun body. Bolt holes are provided at the four inner corners of the gun body, and the terminal mounting module is fixed by bolts to the bolt holes on the inner side of the gun body.

[0010] As a further improvement of this utility model, in order to initially block larger dust and rainwater particles and further enhance the sealing effect to form multiple protections, the sealing structure includes a first sealing layer disposed on the outside of the gun body. The first sealing layer surrounds the outside of the gun body and is arranged in a funnel-shaped structure. A second sealing layer and a third sealing layer are sequentially disposed on the side of the first sealing layer facing the charging port. A sealing strip is disposed at the connection between the third sealing layer and the charging port.

[0011] As a further improvement of this utility model, in order to enhance the connection stability between the charging handle and the main body of the gun, and to facilitate the clamping and fixing of the connected cable to prevent the cable from loosening or falling off, the charging handle includes a tail fixing structure. The tail fixing structure is connected to the end of the main body of the gun. The tail fixing structure includes a limiting cylinder. The end of the limiting cylinder is provided with one or more sets of clamping rings, and the front section of the limiting cylinder is provided with a cable stabilizing ring.

[0012] As a further improvement of this utility model, in order to ensure the dustproof effect of the charging port, improve the convenience of use, and provide good protection for the charging device when not in use, the dustproof structure includes a dustproof cover set on the outside of the charging port. The dustproof cover has buckles around its inner perimeter and is configured to cooperate with the limiting slot. The end of the dustproof cover is connected to the charging handle by a rubber band.

[0013] When this invention is in operation and not charging, the dustproof structure functions. The dustproof cover, through its inner perimeter latches, tightly engages with the limiting slots around the charging port, sealing the charging port to prevent dust and debris from entering and protecting the internal charging module and charging terminals. Simultaneously, the end of the dustproof cover is connected to the charging handle via a rubber band to prevent the dustproof cover from being lost.

[0014] When charging is required, remove the dust cover from the charging port. At this time, the L, N, PE, CP, and PP sockets of the charging port will be exposed. These sockets, together with the charging terminals, are used for electrical connection with the charging station and the vehicle.

[0015] The operator connects the two sets of charging guns to the charging pile and the vehicle respectively. During the connection process, the sealing structure between the main body of the gun and the charging port plays a crucial role. The first sealing layer is arranged in a funnel shape around the outside of the main body of the gun, which can effectively block external moisture and dust; the second and third sealing layers further enhance the sealing effect, and the sealing strip at the connection between the third sealing layer and the charging port ensures the airtightness of the connection, preventing moisture and dust from entering the charging port and protecting the charging module and charging terminals from damage.

[0016] During charging, the charging module starts working, enabling the transfer of electrical energy from the charging station to the vehicle. The tail-end fixing structure of the charging handle ensures the stability of the charging process, while the clamping ring at the end of the limiting cylinder and the cable stabilizing ring at the front secure the connected cable, preventing it from shaking or falling off, and ensuring a safe and reliable charging process.

[0017] After charging is complete, disconnect the charging gun from the charging station and the car, then put the dust cover back on the charging port to restore the dust protection state, and wait for the next charging.

[0018] The beneficial effects of this utility model are as follows:

[0019] Excellent dust protection: The dustproof structure at the charging port, through the snaps around the inside of the dust cover and the limiting slots around the charging port, can effectively seal the charging port when not in use, preventing dust and debris from entering and causing damage to the internal charging module and charging terminals, extending the life of the plug, and reducing the occurrence of malfunctions such as poor contact caused by dust accumulation.

[0020] Superior sealing performance: The sealing structure between the main body of the gun and the charging port has a first sealing layer that spreads out in a funnel shape around the outside of the main body of the gun, which can block most of the external moisture and dust; the second and third sealing layers further enhance the seal; and the sealing strip at the connection between the third sealing layer and the charging port ensures an absolute seal at the connection, which can effectively prevent moisture and dust from entering in harsh environments, and ensure the safety and stability of the charging process.

[0021] Secure Installation: The main body of the charging gun features an internal terminal mounting module, which is bolted to the charging terminal via bolt holes at the four inner corners. This ensures a secure installation of the charging terminals, reducing the risk of loosening due to vibration or external force and guaranteeing the reliability of the electrical connection. The limiting cylinder, clamping ring, and cable stabilizing ring at the tail of the charging handle effectively secure the connected cable, preventing it from shaking or falling off and improving the safety of the charging operation.

[0022] The structural design is reasonable: the charging port is arranged in a ring around the main body of the gun and has a certain thickness, which facilitates connection with charging equipment and enhances the stability of the structure. The overall design is compact, and the layout of each component is reasonable, which improves the practicality and durability of the plug while fulfilling the charging function. Attached Figure Description

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a structural diagram of the present invention.

[0025] Figure 2 This is a structural diagram of the muzzle of the present invention.

[0026] Figure 3 This is a side view of the gun body of this utility model.

[0027] Figure 4 This is a structural diagram of the charging port.

[0028] Figure 5 This is a structural diagram of the internal structure of the charging port.

[0029] Figure 6This is a diagram showing the internal structure of the gun body of this utility model.

[0030] Figure 7 This is a structural diagram of the dustproof structure.

[0031] The components include: 1. Charging group; 2. Charging gun; 3. Charging handle; 4. Charging port; 5. Gun body; 6. Dustproof structure; 7. L socket; 8. N socket; 9. PE socket; 10. CP socket; 11. PP socket; 12. Charging terminal; 13. Sealing structure; 14. Limiting slot; 15. Terminal mounting module; 16. Bolt hole; 17. First sealing layer; 18. Second sealing layer; 19. Third sealing layer; 20. Sealing strip; 21. Tail fixing structure; 22. Limiting cylinder; 23. Clamping ring; 24. Cable stabilizing ring; 25. Dustproof cover; and 26. Buckle. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figure 1-7 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.

[0033] like Figure 1-7 The diagram shows an integrated high-protection European standard AC dual plug, including an AC dual plug body. The AC dual plug body includes a charging assembly 1 for connecting to charging. The charging assembly 1 includes two sets of charging guns 2, which are respectively connected to a charging pile and a vehicle. Each charging gun 2 includes a charging handle 3 at its end. The front of the charging handle 3 is provided with a charging port 4. A gun body 5 is provided between the charging port 4 and the charging handle 3. A dustproof structure 6 is provided at the charging port 4, and a charging module is provided inside.

[0034] The charging port 4 includes an L socket 7, an N socket 8, and a PE socket 9. The L socket 7, N socket 8, and PE socket 9 are also equipped with a CP socket 10 and a PP socket 11. The charging port 4 is equipped with charging terminals 12 in conjunction with several sockets. A sealing structure 13 is provided between the gun body 5 and the charging port 4.

[0035] The charging port 4 has a certain thickness and is designed in a ring shape, surrounding the muzzle of the gun body 5. The charging port 4 is provided with a limiting slot 14 around its perimeter, which is configured to cooperate with the dustproof structure 6.

[0036] The gun body 5 has a terminal mounting module 15 for fixing the charging terminal 12 inside. The four corners of the inner side of the gun body 5 are provided with bolt holes 16. The terminal mounting module 15 is fixed by bolts to the bolt holes 16 on the inner side of the gun body 5.

[0037] The sealing structure 13 includes a first sealing layer 17 disposed on the outside of the gun body 5. The first sealing layer 17 surrounds the outside of the gun body 5 and is arranged in a funnel-shaped structure. A second sealing layer 18 and a third sealing layer 19 are disposed sequentially on the side of the first sealing layer 17 facing the charging port 4. A sealing strip 20 is disposed at the connection between the third sealing layer 19 and the charging port 4.

[0038] The charging handle 3 includes a tail fixing structure 21, which is connected to the end of the gun body 5. The tail fixing structure 21 includes a limiting cylinder 22, and one or more clamping rings 23 are provided at the end of the limiting cylinder 22. A cable stabilizing ring 24 is provided at the front of the limiting cylinder 22.

[0039] The dustproof structure 6 includes a dustproof cover 25 disposed on the outside of the charging port 4. The dustproof cover 25 has buckles 26 disposed around its inner perimeter and is configured to cooperate with the limiting slot 14. The end of the dustproof cover 25 is connected to the charging handle 3 by a rubber band.

[0040] When this invention is in operation and not charging, the dustproof structure 6 functions. The dustproof cover 25 is tightly fitted with the limiting grooves 14 around the charging port 4 via the snaps 26 on its inner perimeter, sealing the charging port 4 to prevent dust and debris from entering and protecting the internal charging module and charging terminals 12. At the same time, the end of the dustproof cover 25 is connected to the charging handle 3 via a rubber band to prevent the dustproof cover 25 from being lost.

[0041] When charging is required, remove the dust cover 25 from the charging port 4. At this time, the L socket 7, N socket 8, PE socket 9, CP socket 10, and PP socket 11 of the charging port 4 are exposed. These sockets, together with the charging terminal 12, are used for electrical connection with the charging pile and the vehicle.

[0042] The operator connects the two sets of charging guns 2 to the charging pile and the vehicle respectively. During the connection process, the sealing structure 13 between the main body 5 of the gun and the charging port 4 plays a crucial role. The first sealing layer 17 is arranged in a funnel shape around the outside of the main body 5, which can effectively block external moisture and dust; the second sealing layer 18 and the third sealing layer 19 further enhance the sealing effect, and the sealing strip 20 at the connection between the third sealing layer 19 and the charging port 4 ensures the sealing of the connection, preventing moisture and dust from entering the interior of the charging port 4 and protecting the charging module and charging terminal 12 from damage.

[0043] During charging, the charging module starts working, enabling the transfer of electrical energy from the charging station to the vehicle. The tail fixing structure 21 of the charging handle 3 ensures the stability of the charging process, while the clamping ring 23 at the end of the limiting cylinder 22 and the cable stabilizing ring 24 at the front fix the connected cable to prevent the cable from shaking or falling off, ensuring a safe and reliable charging process.

[0044] After charging is complete, disconnect the charging gun 2 from the charging station and the car, then put the dust cover 25 back on the charging port 4 to restore the dust protection state, and wait for the next charging.

[0045] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. An integrated high-protection European standard AC double plug, comprising an AC double plug body, characterized in that, The AC dual plug body includes a charging group (1) for connecting to charging. The charging group (1) includes two sets of charging guns (2). The two sets of charging guns (2) are respectively connected to the charging pile and the car. The charging gun (2) includes a charging handle (3) at the end. The front of the charging handle (3) is provided with a charging port (4). The charging port (4) and the charging handle (3) are provided with a gun body (5). The charging port (4) is provided with a dustproof structure (6) and a charging module is provided inside.

2. The integrated high-protection European standard AC double plug according to claim 1, characterized in that, The charging port (4) includes an L socket (7), an N socket (8) and a PE socket (9). The L socket (7), N socket (8) and PE socket (9) are also equipped with a CP socket (10) and a PP socket (11). The charging port (4) is equipped with a charging terminal (12) in conjunction with several sockets. A sealing structure (13) is provided between the gun body (5) and the charging port (4).

3. The integrated high-protection European standard AC double plug according to claim 1, characterized in that, The charging port (4) has a certain thickness and is designed in a ring shape, surrounding the muzzle of the gun body (5). The charging port (4) is provided with a limiting slot (14) around its perimeter, and the limiting slot (14) is configured in conjunction with the dustproof structure (6).

4. The integrated high-protection European standard AC double plug according to claim 2, characterized in that, The gun body (5) is provided with a terminal mounting module (15) for fixing the charging terminal (12). The four corners of the inner side of the gun body (5) are provided with bolt holes (16). The terminal mounting module (15) is fixed by bolts to the bolt holes (16) on the inner side of the gun body (5).

5. The integrated high-protection European standard AC double plug according to claim 2, characterized in that, The sealing structure (13) includes a first sealing layer (17) disposed on the outside of the gun body (5). The first sealing layer (17) surrounds the outside of the gun body (5) and is arranged in a funnel-shaped structure. A second sealing layer (18) and a third sealing layer (19) are arranged sequentially on the side of the first sealing layer (17) facing the charging port (4). A sealing strip (20) is provided at the connection between the third sealing layer (19) and the charging port (4).

6. The integrated high-protection European standard AC double plug according to claim 1, characterized in that, The charging handle (3) includes a tail fixing structure (21), which is connected to the end of the gun body (5). The tail fixing structure (21) includes a limiting cylinder (22), and the end of the limiting cylinder (22) is provided with one or more clamping rings (23). The front section of the limiting cylinder (22) is provided with a cable stabilizing ring (24).

7. The integrated high-protection European standard AC double plug according to claim 3, characterized in that, The dustproof structure (6) includes a dustproof cover (25) disposed on the outside of the charging port (4). The dustproof cover (25) has buckles (26) on its inner periphery and is configured to cooperate with the limiting slot (14). The end of the dustproof cover (25) is connected to the charging handle (3) by a rubber band.