Modularized surge protection device socket
The modular design of the surge protector socket, through the use of plug-in structure and positioning mechanism to achieve tight connection, solves the problems of complex installation and unstable connection of existing surge protector sockets, and improves installation efficiency and equipment operation stability.
Patent Information
- Application Number
- CN202520559877.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing surge protector sockets are complex to install, have loose connections, poor overall integrity, and require circuit disconnection during replacement, which affects equipment operation.
The surge protector socket with modular design achieves tight connection and quick installation through the cooperation of the first and second plug-in structures, combined with the positioning mechanism and busbar.
It improves the adaptability and expandability of the socket, simplifies the installation process, ensures the stability and reliability of electrical connections, reduces the difficulty of operation, supports quick replacement or expansion, and enhances the operational stability and protection efficiency of the equipment.
Smart Images

Figure CN223942079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surge protector technology, specifically a modular surge protector socket. Background Technology
[0002] In low-voltage power distribution systems, overvoltage caused by lightning is a common electrical safety hazard. Therefore, the industry typically uses surge protectors (SPDs) for overvoltage protection. However, replacing traditional surge protectors usually requires disconnecting the circuit, causing equipment downtime and disrupting production and daily life. To improve replacement efficiency, pluggable overvoltage protection modules have emerged. By engaging with a base that houses the protection module, replacement can be completed simply by replacing the damaged module without disconnecting the circuit, making it both convenient and efficient.
[0003] Existing pluggable surge protector bases are mainly divided into two types: integral and modular. Integral bases have a complete structure, good appearance and strength, but usually require the development of dedicated bases for different electrodes, resulting in poor component versatility, low repeatability, and high cost. Modular bases are formed by assembling single-pole bases into multi-pole bases. Although this can reduce costs, it has problems such as complex pole-to-pole installation, insufficient connection tightness, and poor overall integrity. It also requires an external busbar to connect each pole, making installation complicated and aesthetically unappealing. Therefore, a highly modular surge protector socket with reliable connection is needed to improve installation efficiency and convenience, operational stability, and maintenance ease. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a modular surge protector socket, which solves the problems of complex installation, insufficient tightness of connection, and poor overall integrity of partially modular surge protector sockets in the prior art.
[0005] A modular surge protector socket includes a first socket, a second socket, and a third socket. One side of the first socket includes multiple first plug-in structures and a first positioning mechanism. One side of the second socket includes multiple second plug-in structures and a second positioning mechanism. Two opposite sides of the third socket each include multiple first plug-in structures and a first positioning mechanism, and multiple second plug-in structures and a second positioning mechanism. Each first plug-in structure includes multiple first columnar bodies evenly distributed around the periphery of the first or third socket. Each first columnar body has a receiving hole, with the opening of the receiving hole located on the side away from the first or third socket. The inner wall of the receiving hole is recessed towards the outer wall with at least one annular groove. Each second plug-in structure includes multiple second columnar bodies evenly distributed around the periphery of the second or third socket. The outer surface of each second columnar body facing its axis is recessed with at least one annular receiving groove. An annular rubber ring adapted to the annular groove is fitted onto the annular receiving groove.
[0006] Preferably, the first positioning mechanism is an L-shaped baffle, which is respectively disposed at the bottom and top of both sides of the first socket or the third socket along its length. The second positioning mechanism is a third column, which is respectively disposed at the bottom and top of both sides of the second socket or the third socket along its length. When the modular surge protector socket is assembled, the third column abuts against the inner corner of the L-shaped baffle.
[0007] Preferably, an L-shaped notch is provided on the bottom side of the first socket along its length and on the bottom side of the third socket along its length, and an L-shaped plate is provided on the bottom side of the second socket along its length and on the bottom side of the third socket along its length, which is offset from the L-shaped notch. When the modular surge protector socket is assembled, the L-shaped notch and the L-shaped plate are spliced and fastened together.
[0008] Preferably, the first socket, the second socket, and the third socket each have a threaded hole on both sides along their length for splicing.
[0009] Preferably, each of the first socket, the second socket, and the third socket has a mounting hole at both ends of its bottom along the length direction. When the surge protector sockets are spliced together, the mounting holes in the first socket, the second socket, and the third socket are interconnected, and a busbar is provided in the spliced mounting hole.
[0010] Furthermore, the busbar is an integral busbar, which is formed by processing an integral metal sheet. The bottom of the busbar forms a U-shaped structure, and a plug-in structure is formed between the U-shaped structures. The plug-in structure is provided with a first plug-in hole corresponding to the top of the surge protector socket. The plug-in structure is used to contact the pins of the surge protector, and the plug-in structure is elastic to hold the pins.
[0011] Preferably, a snap-fit space is provided on one side of the first socket, one side of the second socket, and both sides of the third socket, and the snap-fit space is used to accommodate the wiring terminals when the surge protector socket is assembled.
[0012] Preferably, each of the first socket, the second socket, and the third socket has a receiving hole at both ends of its bottom along the length direction. When the surge protector sockets are assembled, the mounting holes in the first socket, the second socket, and the third socket are interconnected. An alarm device is installed in each receiving hole. The alarm device includes a circuit board and a predetermined number of micro switches on the circuit board. Each micro switch has a second insertion hole corresponding to the top of the surge protector socket.
[0013] Furthermore, the cross-sections of the first socket, the second socket, and the third socket are all U-shaped.
[0014] Furthermore, each of the three inner surfaces of the first, second, and third sockets that come into contact with the surge protector when plugged in is provided with a heat sink. Each heat sink has a heat dissipation fin on the side away from the surge protector, and the heat sinks are all located in the mounting slots provided in the first, second, and third sockets.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This utility model provides a modular surge protector socket. Through modular design, it not only improves the adaptability and scalability of the surge protector socket, but also allows users to customize socket configurations according to different electrical needs, providing greater flexibility. Users can freely combine the number of the first, second, and third sockets according to actual needs, greatly enhancing the product's adaptability and customizability. Specifically, the first, second, and third sockets are tightly connected through a first and second plug-in structure. When multiple sockets are spliced, loosening between sockets is effectively prevented, ensuring the stability and reliability of the electrical connection during long-term use. Furthermore, the first and second positioning mechanisms work together to provide a positioning for the plug-in engagement of the first and second plug-in structures, making plugging easier and allowing users to quickly complete installation, greatly reducing installation time and operational difficulty. Whether it's initial installation or replacing a damaged socket, it can be easily completed. Therefore, this surge protector socket effectively improves installation flexibility, connection reliability, and long-term stability, ensuring that equipment provides continuous and reliable protection when encountering surges. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of one structure of the modular surge protector socket of this utility model after assembly;
[0018] Figure 2 This is a schematic diagram of another structure of the modular surge protector socket described in this utility model after assembly;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the modular surge protector socket splice described in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the first plug-in structure and the second plug-in structure of this utility model.
[0021] in:
[0022] 10-First socket, 20-Second socket, 30-Third socket, 40-First plug-in structure, 50-Second plug-in structure, 41-First column, 42-Receiving hole, 43-Annular groove, 51-Second column, 52-Annular receiving groove, 53-Annular rubber ring, 60-L-shaped baffle, 70-Third column, 80-Threaded hole, 90-Mounting hole. Detailed Implementation
[0023] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0024] See Figures 1-4 This embodiment provides a modular surge protector socket, which includes a first socket 10, a second socket 20, and a third socket 30. One side of the first socket 10 includes a plurality of first plug-in structures 40 and a first positioning mechanism. One side of the second socket 20 includes a plurality of second plug-in structures 50 and a second positioning mechanism. The two opposite sides of the third socket 30 respectively include a plurality of first plug-in structures 40 and a first positioning mechanism, and a plurality of second plug-in structures 50 and a second positioning mechanism. The first plug-in structure 40 includes a plurality of first plug-in structures 40 evenly distributed around the periphery of the first socket 10 or the third socket 30. The first columnar body 41 has a receiving hole 42 inside. The opening of the receiving hole 42 is located on the side of the receiving hole 42 away from the first socket 10 or the third socket 30. The inner sidewall of the receiving hole 42 is recessed to the outer sidewall with at least one annular groove 43. The second plug-in structure 50 includes a plurality of second columnar bodies 51 evenly distributed around the second socket 20 or the third socket 30. The outer surface of the second columnar body 51 is recessed to the side of its axis with at least one annular receiving groove 52. An annular rubber ring 53 adapted to the annular groove 43 is fitted on the annular receiving groove 52.
[0025] Specifically, when assembling the modular surge protector sockets in this embodiment, one first socket 10, one second socket 20, and zero or more third sockets 30 are selected. The number of third sockets 30 is selected according to requirements. During assembly, it is only necessary to align the second positioning mechanism and the first positioning mechanism. This means that the first plug-in structure 40 and the second plug-in structure 50 are aligned. Press the first socket 10, the second socket 20, or the third socket 30 to be assembled together. At this time, the second columnar body 51 included in the second plug-in structure 50 is inserted into the receiving hole 42 of the first columnar body 41 included in the first plug-in structure 40. Continue to insert until the annular rubber ring 53 on the second columnar body 51 is engaged and tightened into the annular groove 43 in the receiving hole 42 of the first columnar body 41. At this time, the assembly of the first socket 10, the second socket 20, and / or the third socket is completed. Since the annular rubber ring 53 is tightened into the annular groove 43, the connection between the sockets is more secure, which can effectively prevent the sockets from loosening or shifting and ensure the stability of the electrical connection. It should be noted that when multiple third sockets 30 are required, the first socket 10 and the second socket 20 are located at both ends, and the multiple third sockets 30 are located in the center.
[0026] After assembly, a tight and reliable electrical connection is formed between all sockets, ensuring the normal operation of the surge protector. This assembly process is simple, quick, and convenient, greatly improving installation efficiency. Furthermore, since the socket connection is completed by simply aligning the second and first positioning mechanisms and applying slight pressure, complex operations and potential errors during installation are reduced, lowering the installation difficulty and making it suitable for operators of varying skill levels. When it is necessary to replace or add sockets, simply pull one side of the socket to disengage the annular rubber ring 53 from the annular groove 43, then add a third socket 30 or replace the remaining sockets, making expansion or maintenance easy and avoiding the tedious disassembly of the entire system.
[0027] Preferably, the first positioning mechanism is an L-shaped baffle 60, which is respectively disposed at the bottom and top of both sides of the first socket 10 or the third socket 30 along its length. The second positioning mechanism is a third columnar body 70, which is respectively disposed at the bottom and top of both sides of the second socket 20 or the third socket 30 along its length. When the modular surge protector socket is assembled, the third columnar body 70 abuts against the inner corner of the L-shaped baffle 60. It should be noted that this application provides four L-shaped baffles 60, with the openings of the four L-shaped baffles 60 facing inwards. When splicing sockets, the third columnar body 70 is aligned with the L-shaped baffles 60, and the four third columnar bodies 70 abut against the corners of the L-shaped baffles 60. At this time, the first plug-in structure 40 is aligned with the second plug-in structure 50. Pressing the two spliced sockets together brings them closer, thus allowing the two sockets to be spliced. Therefore, the first positioning mechanism and the second positioning mechanism ensure the proper alignment of the sockets during installation, making splicing easier. At the same time, the cooperation between the L-shaped baffles 60 and the third columnar bodies 70 also prevents the sockets from shifting left or right, up or down, or becoming loose to a certain extent.
[0028] Preferably, an L-shaped notch is provided on one bottom side of the first socket 10 and one bottom side of the third socket 30 along their length. An L-shaped plate, offset from the L-shaped notch, is provided on one bottom side of the second socket 20 and the other bottom side of the third socket 30 along their length. During assembly of the modular surge protector socket, the L-shaped notch and the L-shaped plate are spliced and fastened together. The bottom of the second socket 20 is aligned with that of the first socket 10 or the third socket 30, so that the L-shaped notch and the L-shaped plate are spliced in an offset manner. Then, the two sockets are pressed, so that the two L-shaped notches interlock to form a tight connection. Due to the design of the L-shaped notch, the sockets can not only achieve precise alignment during splicing, but also ensure the stability between the sockets, playing a certain limiting role and avoiding adverse effects caused by loosening or displacement of the sockets.
[0029] Preferably, the first socket 10, the second socket 20, and the third socket 30 all have a threaded hole 80 on both sides along their length for splicing. Screws are screwed into the threaded holes 80 to ensure a tighter, more seamless connection between the sockets, further reinforcing the tight connection.
[0030] Preferably, each of the first socket 10, the second socket 20, and the third socket 30 has a mounting hole 90 at both ends of its bottom along its length. When the surge protector sockets are assembled, the mounting holes 90 in the first socket 10, the second socket 20, and the third socket 30 are interconnected, and a busbar is provided within the assembled mounting holes 90. Further, the busbar is an integral busbar, formed from a single piece of metal. The bottom of the busbar forms a U-shaped structure, and a plug-in structure is formed between the U-shaped structures. The plug-in structure has a first plug-in hole corresponding to the top of the surge protector socket. The plug-in structure is used to contact the pins of the surge protector, and the plug-in structure is elastic to grip the pins.
[0031] By providing mounting holes 90 at the bottom of the first socket 10, the second socket 20, and the third socket 30 and connecting them via a busbar, a convenient, stable, and efficient splicing method is provided. When multiple surge protector sockets are spliced, the mounting holes 90 are interconnected, and the sockets are effectively connected through an integrated busbar, ensuring smooth current flow and stable connection. The busbar is formed from a single piece of metal, possessing high conductivity and strong mechanical strength, capable of withstanding large current loads and effectively distributing current. Simultaneously, the U-shaped structure and plug-in structure at the bottom of the busbar ensure a tight contact with the surge protector pins, guaranteeing a stable pin connection. The plug-in structure is flexible, firmly gripping the pins and preventing loosening and poor contact. Therefore, this not only improves the reliability of the electrical connection but also simplifies the installation process, reduces costs, enhances the overall structural compactness and aesthetics, and ensures that the surge protector continues to provide stable and effective protection during long-term use.
[0032] Preferably, a snap-fit space is provided on one side of the first socket 10, the second socket 20, and both sides of the third socket 30. When the surge protector socket is assembled, the snap-fit space is used to accommodate the wiring terminals. The snap-fit space ensures that the wiring terminals are securely housed within the assembled socket, preventing the risk of exposed or loose terminals, thereby improving the safety and reliability of the overall electrical connection. Simultaneously, the wiring terminal arrangement is more compact, reducing space occupation and enhancing the overall aesthetics of the socket. It also improves the modular design of the socket, allowing users to select the number of wiring terminals according to their needs. Furthermore, it simplifies the installation of the surge protector socket, eliminating concerns about poor contact or misconnection during assembly, ensuring the stability and long-term electrical performance of the socket.
[0033] Preferably, each of the first socket 10, the second socket 20, and the third socket 30 has a receiving hole 42 at both ends of its bottom along the length direction. When the surge protector sockets are assembled, the mounting holes 90 in the first socket 10, the second socket 20, and the third socket 30 are interconnected. An alarm device is installed in the receiving hole 42. The alarm device includes a circuit board and a predetermined number of micro switches on the circuit board. The micro switches have a second insertion hole corresponding to the top of the surge protector socket.
[0034] By installing alarm devices within the receiving holes 42 at the bottom of the first socket 10, the second socket 20, and the third socket 30, the safety of the surge protector sockets can be effectively enhanced. The alarm devices installed within the receiving holes 42 consist of a circuit board and a microswitch. Through the sensitive response of the microswitch, a timely warning can be issued when the surge protector malfunctions or is damaged, reminding the user to replace the surge protector module promptly. This ensures that the equipment can receive an early warning in case of overvoltage or other abnormalities, avoiding equipment damage or safety hazards caused by surge protector failure. Simultaneously, the microswitch, through its interaction with the second insertion hole at the top of the socket, enables effective transmission of the alarm signal, facilitating the insertion of the surge protector into the second insertion hole and connection to the microswitch.
[0035] Furthermore, the cross-sections of the first socket 10, the second socket 20, and the third socket 30 are all U-shaped, facilitating the insertion of the surge protector. In addition, each of the three inner surfaces of the first socket 10, the second socket 20, and the third socket 30 that contact the surge protector when plugged in is equipped with a heat sink. The side of each heat sink away from the surge protector is equipped with heat dissipation fins. These heat sinks are all housed within mounting slots within the first socket 10, the second socket 20, and the third socket 30. The heat sinks effectively improve the heat dissipation performance of the sockets during operation, preventing overheating from affecting the normal operation of the surge protector. The heat dissipation fins on the heat sinks further enhance the heat dissipation effect. These heat sinks and fins are all installed in the mounting slots within the sockets, ensuring the stability and durability of the heat dissipation device. Therefore, by optimizing the heat dissipation performance of the sockets, the service life of the equipment is effectively extended, ensuring that the surge protector maintains safe and stable operation under high loads or long-term operation.
[0036] This utility model provides a modular surge protector socket. Through modular design, it not only improves the adaptability and scalability of the surge protector socket, but also allows users to customize socket configurations according to different electrical needs, providing greater flexibility. Users can freely combine the number of the first socket 10, the second socket 20, and the third socket 30 according to actual needs, greatly enhancing the product's adaptability and customizability. Specifically, the first socket 10, the second socket 20, and the third socket 30 are tightly connected through a first plug-in structure 40 and a second plug-in structure 50. When multiple sockets are spliced, it effectively prevents loosening between sockets, and the tight connection ensures the stability and reliability of the electrical connection during long-term use. Furthermore, the first positioning mechanism and the second positioning mechanism work together to provide a positioning for the plug-in engagement of the first plug-in structure 40 and the second plug-in structure 50, making plugging easier and allowing users to quickly complete the installation, greatly reducing installation time and operational difficulty. Whether it is initial installation or replacing a damaged socket, it can be easily completed. Therefore, this surge protector socket effectively improves installation flexibility, connection reliability, and long-term stability, ensuring that the equipment can provide continuous and reliable protection when encountering power surges.
[0037] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model patent application shall still fall within the scope of the present utility model.
Claims
1. A modular surge protector socket, characterized in that: It includes a first socket, a second socket, and a third socket. One side of the first socket includes multiple first plug-in structures and a first positioning mechanism. One side of the second socket includes multiple second plug-in structures and a second positioning mechanism. The two opposite sides of the third socket respectively include multiple first plug-in structures and a first positioning mechanism, and multiple second plug-in structures and a second positioning mechanism. The first plug-in structure includes multiple first columnar bodies evenly distributed around the first socket or the third socket. A receiving hole is provided in the first columnar body. The opening of the receiving hole is located on the side of the receiving hole away from the first socket or the third socket. The inner sidewall of the receiving hole is recessed to the outer sidewall with at least one annular groove. The second plug-in structure includes multiple second columnar bodies evenly distributed around the second socket or the third socket. The outer surface of the second columnar body facing its axis is recessed with at least one annular receiving groove. An annular rubber ring adapted to the annular groove is fitted on the annular receiving groove.
2. The modular surge protector socket as described in claim 1, characterized in that, The first positioning mechanism is an L-shaped baffle, which is respectively disposed at the bottom and top of both sides of the first socket or the third socket along its length. The second positioning mechanism is a third column, which is respectively disposed at the bottom and top of both sides of the second socket or the third socket along its length. When the modular surge protector socket is assembled, the third column abuts against the inner corner of the L-shaped baffle.
3. The modular surge protector socket as described in claim 1, characterized in that, An L-shaped notch is provided on one bottom side of the first socket along its length and on one bottom side of the third socket along its length. An L-shaped plate is provided on one bottom side of the second socket along its length and on the other bottom side of the third socket along its length, which is offset from the L-shaped notch. When the modular surge protector socket is assembled, the L-shaped notch and the L-shaped plate are spliced and fastened together.
4. The modular surge protector socket as described in claim 1, characterized in that, The first socket, the second socket, and the third socket all have a threaded hole on each side along their length that is opposite to each other when they are joined together.
5. The modular surge protector socket as described in claim 1, characterized in that, Each of the first socket, the second socket, and the third socket has a mounting hole at both ends of its length. When the surge protector sockets are spliced together, the mounting holes in the first socket, the second socket, and the third socket are interconnected, and a busbar is provided in the spliced mounting hole.
6. The modular surge protector socket as described in claim 5, characterized in that, The busbar is an integral busbar, which is formed by processing a whole metal sheet. The bottom of the busbar forms a U-shaped structure, and a plug-in structure is formed between the U-shaped structures. The plug-in structure is provided with a first plug hole at the top of the surge protector socket. The plug-in structure is used to contact the pins of the surge protector, and the plug-in structure is elastic to hold the pins.
7. The modular surge protector socket as described in claim 1, characterized in that, The first socket, the second socket, and the third socket are each provided with a snap-fit space on one side, which is used to accommodate the wiring terminals when the surge protector socket is assembled.
8. The modular surge protector socket as described in claim 6, characterized in that, Each of the first socket, the second socket, and the third socket has a receiving hole at both ends of its bottom along the length direction. When the surge protector sockets are assembled, the mounting holes in the first socket, the second socket, and the third socket are interconnected. An alarm device is installed in each receiving hole. The alarm device includes a circuit board and a predetermined number of micro switches on the circuit board. Each micro switch has a second insertion hole corresponding to the top of the surge protector socket.
9. The modular surge protector socket as described in claim 8, characterized in that, The cross-sections of the first, second, and third sockets are all U-shaped.
10. The modular surge protector socket as described in claim 9, characterized in that, Each of the three inner surfaces of the first, second, and third sockets that come into contact with the surge protector when plugged in is provided with a heat sink. Each heat sink has a heat dissipation fin on the side away from the surge protector. The heat sinks are all located in the mounting slots provided in the first, second, and third sockets.