Lightning protection plug

By incorporating a surge protection board and optimizing the layout design within the surge protector plug, the problem of insufficient protection in existing surge protectors when grounding is poor or components deteriorate is solved, achieving efficient surge protection, stable current transmission, and convenient use.

CN223967470UActive Publication Date: 2026-03-03DONGGUAN POWER TECHNO ELECTRIC CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing surge protectors cannot effectively protect electrical equipment when grounding is poor or surge protection components deteriorate, and there is a risk of short circuit between the live wire and the neutral wire. They are also costly and inconvenient to use.

Method used

A surge protector plug has been designed, comprising a housing, a surge protection plate, a connecting wire, and a power plug. The surge protection plate is built into a fixed cavity and is equipped with surge protection components such as surge protectors. The internal layout is optimized and current transmission is ensured smoothly. The housing is easily connected via a rotating fixing slot and a wiring fixing slot. Indicator lights and insulating sleeves are provided to improve ease of use.

Benefits of technology

It achieves effective lightning protection, reduces electromagnetic interference, improves the stability and reliability of the plug, ensures smooth current transmission, and enhances ease of use and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223967470U_ABST
    Figure CN223967470U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of electric connection, in particular to a lightning protection plug, which comprises a shell, a lightning protection plate, a connecting wire and a power connection plug, a fixed cavity and a wiring groove are arranged in the shell, the wiring groove is positioned on the outer side of the fixed cavity, the lightning protection plate is arranged in the fixed cavity, a power connection element is arranged in the wiring groove, and the connecting wire is connected with the power connection plug. The connecting wire is conductively connected with the power connection element and the lightning protection plate; one end of the power connection plug is conductively connected with the power connection element; the lightning protection plate is provided with a lightning protection component. According to the utility model, the lightning protection performance is improved, the internal layout is optimized, smooth current transmission is ensured, and the use convenience is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electrical connection technology, and in particular to a surge protector plug. Background Technology

[0002] When a power supply is subjected to a high-voltage surge caused by induced lightning current, it can damage various electrical equipment, posing the greatest threat to equipment that is currently in use. Existing surge protection power adapters for electrical appliances have discharge tubes or surge protection elements connected to the positive and negative contacts corresponding to the sockets, and are also connected to the grounding terminal. While these adapters can divert the high-voltage induced lightning current from the power supply to the ground for discharge, they are ineffective if there is no effective grounding or poor grounding. Furthermore, surge protection elements without discharge tubes are prone to short circuits between the live and neutral wires when they deteriorate. They are also costly and inconvenient to use. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a surge protector plug that enhances lightning protection performance, optimizes internal layout, ensures smooth current transmission, and improves ease of use.

[0004] The technical solution adopted by this utility model is as follows: a surge protector plug, including a shell, a surge protection plate, a connecting wire, and a power connector. The shell has a fixed cavity and a wiring groove, the wiring groove being located outside the fixed cavity. The surge protection plate is disposed inside the fixed cavity, and a power connecting element is disposed inside the wiring groove. The connecting wire is electrically connected to the power connecting element and the surge protection plate. One end of the power connector is electrically connected to the power connecting element. Surge protection components are disposed on the surge protection plate.

[0005] A further improvement to the above solution is that the outer shell includes an upper shell and a lower shell, the upper shell and the lower shell are fastened to each other, and the two ends of the outer shell are respectively provided with a rotating fixing groove and a wiring fixing groove. The power plug is disposed on the rotating fixing groove, and the connecting wire is disposed on the wiring fixing groove.

[0006] A further improvement to the above solution is that the outer edge of the lower housing is provided with an assembly slot, the assembly slot is provided with an assembly insertion hole, the outer edge of the upper housing is provided with an assembly strip, the assembly strip is provided with an assembly pin, the assembly strip is used to cooperate with the assembly slot, and the assembly pin is used to cooperate with the assembly insertion hole.

[0007] A further improvement to the above solution is that the upper housing is provided with an indicator fixing groove, and the lightning protection plate is provided with an indicator light, one end of which is set on the indicator fixing groove.

[0008] A further improvement to the above solution is that a rotating connecting seat is provided on the rotating fixing groove, the rotating connecting seat is rotatably mounted on the rotating connecting groove, and the power plug is mounted on the rotating connecting seat.

[0009] A further improvement to the above solution is that the rotary connector is provided with a rotating shaft, the rotating shaft is provided with a damping spring, and the rotating shaft is used to connect the power connection element to the power connection plug; the rotary connector is rotatably connected to the rotary fixing groove through the rotating shaft.

[0010] A further improvement to the above solution is that plug slots are provided on both sides of the rotating connector, and the power connector is provided with an insulating sleeve, which is used to fix the power connector on the plug slots.

[0011] A further improvement to the above solution is that a flexural member is provided on the wiring fixing groove, one end of the flexural member is fixed on the wiring fixing groove, and the connecting wire is disposed inside the flexural member.

[0012] A further improvement to the above solution is that a fixing plate is provided on the fixing cavity, the fixing plate is used to fix the lightning protection plate, and a through groove is provided at one end of the fixing plate for the connection wire to pass through.

[0013] A further improvement to the above solution is that the lightning protection component is a surge protector.

[0014] The beneficial effects of this utility model are:

[0015] Compared to existing plugs, this invention achieves effective protection against lightning strikes by placing the surge protection plate inside the fixed cavity. The surge protection plate is equipped with surge protectors, varistors, gas discharge tubes, etc., which can quickly respond to lightning pulses and conduct them to the ground, effectively preventing damage to subsequent circuits and equipment. The separate design of the wiring channel and the fixed cavity optimizes the internal space layout and ensures orderly wiring. This reduces electromagnetic interference caused by messy wiring and improves the overall stability and reliability of the plug. The conductive connection between the plug and the connecting element allows for convenient and quick connection to an external power source, further enhancing ease of use and practicality. This invention improves lightning protection performance, optimizes internal layout, ensures smooth current transmission, and enhances ease of use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the surge protector plug of this utility model;

[0017] Figure 2 for Figure 1 Explosion diagram of a surge protector plug;

[0018] Figure 3 for Figure 1 An explosion diagram from another perspective of the surge protector plug.

[0019] Explanation of reference numerals in the attached drawings: 1. Outer shell; 11. Fixing cavity; 111. Fixing protective plate; 112. Through groove; 112. Wiring groove; 13. Electrical connection element; 14. Upper shell; 141. Assembly clip; 142. Assembly pin; 143. Indicator fixing groove; 15. Lower shell; 151. Assembly slot; 152. Rotating fixing groove; 16. Assembly clip; 161. Assembly pin; 162. Rotating connecting seat; 163. Rotating connecting groove; 164. Rotating shaft; 1641. Damping spring; 1642. Wiring fixing groove; 17. Bending resistant part; 171. Lightning protection plate; 2. Lightning protection component; 21. Indicator light; 22. Connecting wire; 3. Electrical plug; 4. Insulating sleeve; 41. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-3As shown, in one embodiment of this utility model, a surge protector plug is provided, including a housing 1, a surge protection plate 2, a connecting wire 3, and a power connector 4. The housing 1 has a fixed cavity 11 and a wiring groove 12, with the wiring groove 12 located outside the fixed cavity 11. The surge protection plate 2 is disposed within the fixed cavity 11, and a power receiving element 13 is disposed within the wiring groove 12. The connecting wire 3 is electrically connected to the power receiving element 13 and the surge protection plate 2. One end of the power connector 4 is electrically connected to the power receiving element 13. A surge protection component 21 is disposed on the surge protection plate 2. This embodiment achieves effective protection against lightning strikes by placing the surge protection plate 2 within the fixed cavity 11. The surge protection component 21 disposed on the surge protection plate 2 can be a surge protector, a varistor, a gas discharge tube, etc., which can quickly respond to lightning pulses and conduct them to the ground, effectively preventing damage to subsequent circuits and equipment from lightning. The separate design of the wiring trough 12 and the fixing cavity 11 optimizes the internal space layout and ensures the orderly routing of the connecting wires 3. This reduces electromagnetic interference caused by messy wiring and improves the overall stability and reliability of the plug. The conductive connection between the power connector 4 and the power receiving element 13 allows the plug to be easily and quickly connected to an external power source, further enhancing its ease of use and practicality. This embodiment improves lightning protection performance, optimizes the internal layout, ensures smooth current transmission, and enhances ease of use.

[0023] The outer casing 1 includes an upper casing 14 and a lower casing 15, which are interlocked. A rotation fixing groove 16 and a wiring fixing groove 17 are respectively provided at both ends of the outer casing 1. The power connector 4 is disposed on the rotation fixing groove 16, and the connecting wire 3 is disposed on the wiring fixing groove 17. Specifically, an assembly slot 151 is provided on the outer edge of the lower casing 15, and an assembly insertion hole 152 is provided on the assembly slot 151. An assembly strip 141 is provided on the outer edge of the upper casing 14, and an assembly pin 142 is provided on the assembly strip 141. The assembly strip 141 is used to engage with the assembly slot 151, and the assembly pin 142 is used to engage with the assembly insertion hole 152. In this embodiment, the interlocking design of the upper casing 14 and the lower casing 15 not only simplifies the assembly process of the outer casing but also ensures the tightness and integrity of the outer casing structure, effectively preventing interference from the external environment, such as dust and moisture, and providing a good protective barrier for the internal electrical components. The rotating fixing slot 16 and the wiring fixing slot 17 enable precise positioning and secure installation of the power plug 4 and the connecting wire 3. This design not only facilitates quick connection and disconnection of the power supply but also ensures the safety and reliability of the electrical connection, reducing the risk of failure due to loose connections. The cooperative use of the mounting slot 151 and mounting strip 141 on the outer edge of the lower housing 15, as well as the ingenious docking of the mounting socket 152 and the mounting pin 142, greatly enhances the assembly precision and stability between the housing components.

[0024] The upper housing 14 is provided with an indicator fixing groove 143, and the surge protection plate 2 is provided with an indicator light 22, one end of which is set on the indicator fixing groove 143. In this embodiment, the snap-fit ​​structure enhances the overall stability of the housing 1, enabling the surge protector plug to remain stable in complex and ever-changing electrical environments, effectively resisting external impacts and vibrations, thereby extending the product's service life. The rotating fixing groove 16 and the wiring fixing groove 17 respectively provided at both ends of the housing 1 provide convenience for the rotation installation of the plug and the fixing of the connecting wire 3. The rotating fixing groove 16 allows the plug to be flexibly adjusted at the required angle, facilitating use in different scenarios; while the wiring fixing groove 17 ensures a firm connection of the connecting wire 3, avoiding electrical faults caused by loose connecting wire 3. The assembly slot 151 and assembly strip 141 design on the outer edge of the lower housing 15 further improve the assembly accuracy and efficiency of the housing 1. The cooperation between the assembly slot 151 and the assembly strip 141 makes the assembly of the upper housing 14 and the lower housing 15 more tight and seamless, reducing errors in the assembly process. Meanwhile, the mounting socket 152 and mounting pin 142 provide additional fixing points for the assembly process, enhancing the stability of the housing 1 structure.

[0025] A rotating connecting seat 163 is provided on the rotating fixing groove 16. The rotating connecting seat 163 is rotatably mounted on the rotating connecting groove 164, and the power connector 4 is mounted on the rotating connecting seat 163. The rotating connecting seat 163 is provided with a rotating shaft 1641, and the rotating shaft 1641 is provided with a damping spring 1642. The rotating shaft 1641 is used to connect the power connecting element 13 and the power connector 4. The rotating connecting seat 163 is rotatably connected to the rotating fixing groove 16 via the rotating shaft 1641. Plug slots 1631 are provided on both sides of the rotating connecting seat 1631. The power connector 4 is provided with an insulating sleeve 41, which is used to fix the power connector 4 onto the plug slots 1631. In this embodiment, by connecting the rotating fixing groove 16 and the rotating connecting seat 163, the surge protector plug can maintain a stable connection while possessing the characteristic of flexible rotation. This not only facilitates the user's operation of the plug in confined spaces but also greatly improves the convenience and flexibility of use. The combination of the rotating shaft 1641 and the damping spring 1642 ensures the stability and reliability of the connection between the connecting element 13 and the connecting plug 4. The damping spring 1642 provides moderate resistance during rotation, effectively preventing the plug from loosening or falling off due to vibration or external force, thus ensuring the electrical connection performance of the surge protector plug. The cooperation between the plug slot 1631 and the insulating sleeve 41 further enhances the stability and safety of the plug fixation. The insulating sleeve 41 not only effectively isolates the electrical contact parts to prevent electric shock accidents, but also ensures the stability of the plug during rotation by tightly fitting the plug slot 1631, avoiding poor connection caused by shaking.

[0026] A flexural member 171 is provided on the wiring fixing groove 17. One end of the flexural member 171 is fixed to the wiring fixing groove 17, and the connecting wire 3 is disposed inside the flexural member 171. In this embodiment, by placing the connecting wire 3 inside the flexural member 171, mechanical damage to the connecting wire 3 during frequent bending or pulling can be effectively prevented, thereby extending the service life of the connecting wire 3. The flexural member 171 being fixed to the wiring fixing groove 17 ensures a stable connection between the flexural member 171 and the wiring fixing groove 17. This enhances the stability of the entire structure and helps prevent the flexural member 171 from loosening or falling off during long-term use, further ensuring the safe use of the connecting wire 3.

[0027] A fixing plate 111 is provided on the fixing cavity 11. The fixing plate 111 is used to fix the lightning protection plate 2. One end of the fixing plate 111 is provided with a through groove 112 for the connecting wire 3 to pass through. In this embodiment, by providing a fixing plate 111 on the fixing cavity 11, the lightning protection plate 2 is firmly fixed. This not only enhances the installation stability of the lightning protection plate 2, but also effectively prevents loosening or falling off due to external environmental factors, thereby ensuring the continuous and effective operation of the lightning protection system. The through groove 112 on the fixing plate 111 provides a convenient passage for the connecting wire 3. This simplifies the wiring process of the connecting wire 3, reduces the assembly difficulty, and effectively avoids safety hazards caused by improper wiring.

[0028] The lightning protection component 21 is a surge protector. In this embodiment, a surge protector (SPD) is a device used to limit transient overvoltages in an electrical circuit, mainly protecting equipment from voltage surges caused by lightning strikes or power grid fluctuations.

[0029] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A surge protector plug, characterized in that: The device includes a housing, a surge protection board, connecting wires, and a power connector. The housing has a fixed cavity and a wiring channel, with the wiring channel located outside the fixed cavity. The surge protection board is located inside the fixed cavity, and a power-connecting element is installed in the wiring channel. The connecting wires are electrically connected to the power-connecting element and the surge protection board. One end of the power connector is electrically connected to the power-connecting element. The surge protection board is equipped with surge protection components.

2. The surge protector plug according to claim 1, characterized in that: The outer casing includes an upper casing and a lower casing, which are fastened together. The two ends of the outer casing are respectively provided with a rotating fixing groove and a wiring fixing groove. The power plug is disposed on the rotating fixing groove, and the connecting wire is disposed on the wiring fixing groove.

3. The surge protector plug according to claim 2, characterized in that: The lower housing has an assembly slot along its outer edge, and an assembly insertion hole is provided in the assembly slot. The upper housing has an assembly strip along its outer edge, and an assembly pin is provided in the assembly strip. The assembly strip is used to engage with the assembly slot, and the assembly pin is used to engage with the assembly insertion hole.

4. The surge protector plug according to claim 2, characterized in that: The upper housing is provided with an indicator fixing groove, and the lightning protection plate is provided with an indicator light, one end of which is set on the indicator fixing groove.

5. The surge protector plug according to claim 2, characterized in that: A rotating connecting seat is provided on the rotating fixing groove, the rotating connecting seat is rotatably mounted on the rotating connecting groove, and the power plug is mounted on the rotating connecting seat.

6. The surge protector plug according to claim 5, characterized in that: The rotating connector is provided with a rotating shaft, and the rotating shaft is provided with a damping spring. The rotating shaft is used to connect the power connection element to the power connection plug. The rotating connector is rotatably connected to the rotating fixing groove through the rotating shaft.

7. The surge protector plug according to claim 6, characterized in that: The rotating connector has plug slots on both sides, and the power connector has an insulating sleeve for fixing the power connector in the plug slots.

8. The surge protector plug according to claim 2, characterized in that: A flexural member is provided on the wiring fixing groove, one end of which is fixed to the wiring fixing groove, and the connecting wire is disposed inside the flexural member.

9. The surge protector plug according to claim 1, characterized in that: A fixing plate is provided on the fixing cavity. The fixing plate is used to fix the lightning protection plate. One end of the fixing plate is provided with a through groove for the connecting wire to pass through.

10. The surge protector plug according to claim 1, characterized in that: The lightning protection component is a surge protector.