Integrated small-sized national standard AC plug

The AC plug, with its streamlined design and integrated current blocker, solves the problems of inconvenient grip and insufficient safety performance of traditional plugs, achieving a stable connection and a safe and reliable charging process.

CN224384693UActive Publication Date: 2026-06-19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
2025-07-07
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional Chinese standard AC plugs lack streamlined design, are inconvenient to hold, have insufficient safety performance, unstable connections, unreliable cable fixing, and pose safety hazards in humid environments.

Method used

Featuring a streamlined design, it integrates a current blocker and a snap-fit ​​structure, and incorporates anti-slip grooves and a protective ring to enhance grip comfort and safety, ensuring a secure connection between the plug and socket and reliable cable fixation.

Benefits of technology

It improves the safety performance and user experience of the plug, ensures that the circuit is quickly cut off in case of abnormal current, prevents loosening and falling off, reduces the risk of electric shock, and ensures the stability and safety of the charging process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of AC plug technology, and more particularly to an integrated small national standard AC plug, including an AC plug body. The AC plug body includes a main shell with a streamlined structure, having a charging front end and a charging rear end. The charging front end has multiple sets of circular sockets, including L sockets, N sockets, and PE sockets. The top of the main shell has a protruding grip connection component for plugging and unplugging operations. The charging rear end of the main shell has a cable fixing component. The L sockets, N sockets, and PE sockets have several sets of charging terminals inside. This utility model adopts a streamlined structure, combined with anti-slip grooves on both sides, making it comfortable to hold and easy to plug and unplug. The unique grip connection component on the top integrates a current interruptor, which can quickly cut off the circuit in case of abnormal current, ensuring electrical safety.
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Description

Technical Field

[0001] This utility model relates to the field of AC plug technology, and in particular to an integrated small national standard AC plug. Background Technology

[0002] In daily life and various electronic device applications, AC plugs play an indispensable role as a key component for power transmission. However, traditional national standard AC plugs have certain limitations in design and function.

[0003] On the one hand, their appearance is mostly conventional, lacking streamlined or other optimized designs. Not only are they not visually appealing, but they also lack an ergonomic structure when plugging and unplugging, making them inconvenient to hold and affecting the user experience.

[0004] On the other hand, safety performance needs improvement. During charging, the lack of effective current-blocking safety devices means that the circuit cannot be cut off in time in case of abnormal current, easily leading to safety accidents. Furthermore, the connection between the plug and socket is not stable enough, easily loosening and detaching, affecting normal charging, and there are no dedicated clips or other fixing structures to reinforce the connection.

[0005] Furthermore, the cable securing mechanisms are not reliable enough, and the cable can easily detach from the plug due to pulling or other external forces, affecting its lifespan. Moreover, traditional plugs lack adequate anti-slip and protective designs, posing safety hazards in humid environments or frequent use scenarios. Therefore, developing an integrated miniature national standard AC plug is of significant practical importance. Utility Model Content

[0006] To address some of the problems existing in the prior art, this utility model provides an integrated miniature national standard AC plug. This utility model adopts a streamlined structure with anti-slip grooves on both sides, making it comfortable to hold and easy to plug and unplug. The unique grip connection component at the top integrates a current interruptor, which can quickly cut off the circuit in case of abnormal current, ensuring electrical safety; at the same time, the designed latching strip can tightly cooperate with the socket slot, effectively preventing the plug from loosening and falling off. An integrated protective ring between the charging front and the outer shell provides a solid protective barrier for the charging terminals.

[0007] To achieve the above objectives, this utility model provides an integrated small national standard AC plug, including an AC plug body. The AC plug body includes a main shell with a streamlined structure, having a charging front end and a charging rear end. The charging front end is provided with multiple sets of circular sockets, including an L socket, an N socket, and a PE socket. The top of the main shell is provided with a protruding gripping connection component for plugging and unplugging operations. The charging rear end of the main shell is provided with a cable fixing component. The L socket, N socket, and PE socket are provided with several sets of charging terminals inside.

[0008] As a further improvement to this utility model, in order to provide users with additional protection when operating the plug and prevent the risk of electric shock that may be caused by direct hand contact with the plug body, the grip connection component is enhanced with the safety of the plug. The grip connection component includes a grip protective shell disposed above the main body shell. The grip connection component includes a current interruptor disposed in the middle section of the main body shell. A lifting switch is disposed on one side of the top of the current interruptor, and a connecting rib is disposed on the other side of the current interruptor. The connecting rib extends towards one side of the lifting switch, and the other end of the connecting rib is located above the lifting switch.

[0009] As a further improvement of this utility model, in order to make the connection between the plug and the socket more stable, effectively prevent the plug from falling off the socket due to accidental collision or pulling during use, and ensure the continuity of the charging process, the grip connection component also includes support blocks disposed on both sides of the main body shell, a rotating shaft disposed between the support blocks, a return spring disposed on the rotating shaft, and a buckle strip disposed on the rotating shaft.

[0010] As a further improvement of this utility model, in order to further enhance the connection stability between the plug and the socket, connecting blocks are provided on both sides of the middle section of the buckle strip. The buckle strip is fixedly and rotatably mounted on the rotating shaft by the connecting blocks on both sides. One end of the buckle strip is provided with a buckle head for cooperating with the slot on the socket. The other end of the buckle strip is provided with a cylindrical button. A pressure block is provided on one side of the cylindrical button below the buckle strip. The cylindrical button is fitted with a pressing shell.

[0011] As a further improvement of this utility model, in order to effectively prevent fingers from accidentally touching the charging terminal during the plugging and unplugging process, reduce the risk of electric shock, and improve safety, a raised protective ring is provided between the charging front end and the main body shell. The protective ring is integrally formed with the main body shell, and anti-slip grooves are also provided on both sides of the main body shell.

[0012] As a further improvement of this utility model, in order to increase the friction between the cable and the cable sheath and effectively prevent the cable from sliding after fixing, the cable fixing component includes one or more annular clamping rings, the inner wall of which is provided with anti-slip texture and contacts the cable sheath.

[0013] When this utility model is in operation, the user first observes the anti-slip grooves on both sides of the main body shell, and then firmly holds the top of the main body shell with the grip connection component. The streamlined structure and anti-slip groove design can effectively prevent slipping during operation.

[0014] When no charging operation is performed, the cylindrical button located below the opening shell is in the initial position. When the cylindrical button is pressed and moved slightly downwards, the pressure block on one side of the cylindrical button moves downwards and comes into contact with the connecting rib plate. Under the linkage of the connecting rib plate, the internal circuit is connected and the current can pass normally. At this time, the latching strip lifts the latching head through the rotating shaft. After the latching head aligns with the slot on the socket, the return spring resets the latching strip to start the charging operation.

[0015] When you need to unplug the plug, press the cylindrical button on the other end of the latching strip. The pressure block is stressed, causing the latching strip to rotate around the axis. When the cylindrical button moves slightly downward under the force, the pressure block on the side of the cylindrical button moves downward and comes into contact with the connecting rib plate. Under the linkage of the connecting rib plate, the internal circuit is broken, the latch head disengages from the slot, and the plug can be easily unplugged. Pressing the outer shell can protect the cylindrical button and prevent accidental activation.

[0016] During charging, the raised protective ring between the charging front end and the main body shell prevents external objects from accidentally touching the charging terminals, ensuring safe use. Meanwhile, the annular clamping ring of the cable fixing component at the charging rear end has anti-slip textures on its inner wall, increasing friction with the cable sheath and ensuring a secure connection between the cable and the plug. This prevents problems such as poor contact or leakage due to cable loosening, ensuring a stable, safe, and efficient charging process.

[0017] The beneficial effects of this utility model are as follows:

[0018] Significantly improved safety performance

[0019] Current interruption function: The grip connection component integrates a current interruptor, which can quickly cut off the circuit in case of abnormal current, ensuring electrical safety. The current interruptor is located in the middle of the main shell, with a lifting switch on one side of the top and a connecting rib on the other side. The circuit on / off control is achieved through the linkage between the pressure block and the connecting rib.

[0020] Electric shock protection design: The grip protective shell provides extra protection for users when operating the plug, preventing the risk of electric shock that may be caused by direct hand contact with the plug body; a raised protective ring is provided between the charging front and the main body shell, which can effectively prevent fingers from accidentally touching the charging terminals during plugging and unplugging, reducing the risk of electric shock.

[0021] Enhanced connection stability

[0022] Snap-fit ​​structure: Support blocks are set on both sides of the main shell, and a rotating shaft is located between the support blocks. A return spring and a snap-fit ​​strip are installed on the rotating shaft. Connecting blocks on both sides of the middle section of the snap-fit ​​strip are fixed to the rotating shaft. One end has a snap-fit ​​head that engages with the socket slot, and the other end has a cylindrical button, a pressure block, and a pressing shell. This design makes the connection between the plug and the socket more secure, effectively preventing the plug from falling off the socket due to accidental collisions or pulling during use, and ensuring the continuity of the charging process.

[0023] Reliable cable fixing

[0024] Cable fixing components: The charging end is equipped with cable fixing components, including one or more annular clamping rings. The inner wall of the annular clamping rings is provided with anti-slip texture, which can increase the friction with the cable sheath and effectively prevent the cable from sliding after fixing. This avoids problems such as poor contact or leakage due to cable loosening, and ensures that the charging process is stable, safe and efficient. Attached Figure Description

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a structural diagram of the present invention.

[0027] Figure 2 This is a side view of the present invention.

[0028] Figure 3 This is a structural diagram of the gripping and connecting components.

[0029] Figure 4 This is a diagram of the bottom structure of the buckle strip.

[0030] Figure 5 This is a diagram of the internal structure of the gripping and connecting components.

[0031] Figure 6 This is a structural diagram of the charging front end of this utility model.

[0032] The components include: 1. Main casing; 2. Charging front end; 3. Charging rear end; 4. L socket; 5. N socket; 6. PE socket; 7. Grip connection component; 8. Cable fixing component; 9. Charging terminal; 10. Grip protection casing; 11. Current interruptor; 12. Lifting switch; 13. Connecting rib plate; 14. Support block; 15. Rotating shaft; 16. Return spring; 17. Buckle strip; 18. Connecting block; 19. Buckle head; 20. Column button; 21. Pressure block; 22. Pressing casing; 23. Protective ring; 24. Anti-slip groove; 25. Annular clamping ring. Detailed Implementation

[0033] 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 1-6The 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.

[0034] like Figure 1-6 The diagram shows an integrated miniature national standard AC plug, including an AC plug body. The AC plug body includes a main shell 1 with a streamlined structure, having a charging front end 2 and a charging rear end 3. The charging front end 2 is provided with multiple sets of circular sockets, including an L socket 4, an N socket 5, and a PE socket 6. The top of the main shell 1 is provided with a protruding gripping connection component 7 for plugging and unplugging operations. The charging rear end 3 of the main shell 1 is provided with a cable fixing component 8. The L socket 4, N socket 5, and PE socket 6 are provided with several sets of charging terminals 9 inside.

[0035] The grip connection component 7 includes a grip protective shell 10 disposed above the main shell 1. The grip connection component 7 includes a current blocker 11 disposed in the middle section of the main shell 1. A lifting switch 12 is disposed on one side of the top of the current blocker 11, and a connecting rib 13 is disposed on the other side of the current blocker 11. The connecting rib 13 extends toward one side of the lifting switch 12, and the other end of the connecting rib 13 is located above the lifting switch 12.

[0036] The gripping connection component 7 also includes support blocks 14 disposed on both sides of the main body shell 1, a rotating shaft 15 disposed between the support blocks 14, a return spring 16 disposed on the rotating shaft 15, and a buckle strip 17 disposed on the rotating shaft 15.

[0037] Connecting blocks 18 are provided on both sides of the middle section of the buckle strip 17. The buckle strip 17 is fixedly and rotatably mounted on the rotating shaft 15 through the connecting blocks 18 on both sides. One end of the buckle strip 17 is provided with a buckle head 19 for engaging with the slot on the socket. The other end of the buckle strip 17 is provided with a cylindrical button 20. A pressure block 21 is provided on one side of the cylindrical button 20 below the buckle strip 17. The cylindrical button 20 is fitted with a pressing shell 22.

[0038] A raised protective ring 23 is provided between the charging front end 2 and the main body shell 1. The protective ring 23 is integrally formed with the main body shell 1. Anti-slip grooves 24 are also provided on both sides of the main body shell 1.

[0039] The cable fixing component 8 includes one or more annular clamping rings 25, the inner wall of which is provided with anti-slip texture and contacts the cable sheath.

[0040] When this utility model is in operation, the user first observes the anti-slip grooves 24 on both sides of the main body shell 1, and firmly holds the top of the main body shell 1 with the grip connection part 7. The streamlined structure and the anti-slip groove design can effectively prevent slipping during operation.

[0041] When no charging operation is performed, the cylindrical button 20 located below the opening shell is in the initial position. When the cylindrical button 20 moves slightly downward under the action of force, the pressure block 21 located on one side of the cylindrical button 20 moves downward and comes into contact with the connecting rib plate 13. Under the linkage action of the connecting rib plate 13, the internal circuit is connected and the current can pass normally. At this time, the latching strip 17 lifts the latching head 19 through the rotating shaft 15. After the latching head 19 is aligned with the slot on the socket, the return spring 16 resets the latching strip 17 and the charging operation is performed.

[0042] When it is necessary to unplug the plug, press the cylindrical button 20 at the other end of the latching strip 17. The pressure block 21 is subjected to force, causing the latching strip 17 to rotate around the rotating shaft 15. When the cylindrical button 20 moves slightly downward under the force, the pressure block 21 located on one side of the cylindrical button 20 moves downward and comes into contact with the connecting rib plate 13. Under the linkage action of the connecting rib plate 13, the internal circuit is disconnected, the latch head 19 disengages from the slot, and the plug can be easily unplugged. Pressing the outer shell 22 can protect the cylindrical button 20 and prevent accidental activation.

[0043] During charging, the raised protective ring 23 between the charging front end 2 and the main body shell 1 prevents external objects from accidentally touching the charging terminal 9, ensuring safe use. Meanwhile, the annular clamping ring 25 of the cable fixing component 8 at the charging rear end 3 has anti-slip textures on its inner wall, increasing friction with the cable sheath and ensuring a secure connection between the cable and the plug. This prevents problems such as poor contact or leakage due to cable loosening, ensuring a stable, safe, and efficient charging process.

[0044] 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. A one-piece miniature national standard AC plug, comprising an AC plug body, characterized in that, The AC plug body includes a main shell (1), which has a streamlined structure and has a charging front end (2) and a charging rear end (3). The charging front end (2) is provided with multiple sets of circular sockets, including an L socket (4), an N socket (5) and a PE socket (6). The top of the main shell (1) is provided with a protruding gripping connection component (7) for plugging and unplugging operations. The charging rear end (3) of the main shell (1) is provided with a cable fixing component (8). The L socket (4), N socket (5) and PE socket (6) are provided with several sets of charging terminals (9).

2. The integrated miniature national standard AC plug according to claim 1, characterized in that, The grip connection component (7) includes a grip protective shell (10) disposed above the main body shell (1). The grip connection component (7) includes a current blocker (11). The current blocker (11) is disposed in the middle section of the main body shell (1). A lifting switch (12) is disposed on one side of the top of the current blocker (11). A connecting rib (13) is disposed on the other side of the current blocker (11). The connecting rib (13) extends toward one side of the lifting switch (12). The other end of the connecting rib (13) is located above the lifting switch (12).

3. The integrated miniature national standard AC plug according to claim 2, characterized in that, The grip connection component (7) also includes support blocks (14) disposed on both sides of the main body shell (1), a rotating shaft (15) is disposed between the support blocks (14), a return spring (16) is disposed on the rotating shaft (15), and a buckle strip (17) is disposed on the rotating shaft (15).

4. The integrated miniature national standard AC plug according to claim 3, characterized in that, Connecting blocks (18) are provided on both sides of the middle section of the buckle strip (17). The buckle strip (17) is fixedly and rotatably mounted on the rotating shaft (15) by the connecting blocks (18) on both sides. One end of the buckle strip (17) is provided with a buckle head (19) for cooperating with the slot on the socket. The other end of the buckle strip (17) is provided with a cylindrical button (20). A pressure block (21) is provided on one side of the cylindrical button (20) below the buckle strip (17). The cylindrical button (20) is provided with a pressing shell (22).

5. The integrated miniature national standard AC plug according to claim 1, characterized in that, A raised protective ring (23) is provided between the charging front end (2) and the main shell (1). The protective ring (23) is integrally formed with the main shell (1). Anti-slip grooves (24) are also provided on both sides of the main shell (1).

6. The integrated miniature national standard AC plug according to claim 1, characterized in that, The cable fixing component (8) includes one or more annular clamping rings (25), the inner wall of which is provided with anti-slip texture and contacts the cable sheath.