A surge protector

Abstract

The utility model relates to power protection equipment especially a surge protection device, it includes lightning protection board and with lightning protection board electricity connection's multiple groups protection module and at least one first connection row, first connection row and protection module are located the same side surface of lightning protection board, and first connection row is located protection module side edge, first connection row includes first connection bridge, at least two first pin and first input end part, first output end part, first input end part, first output end part are located opposite two ends of first connection bridge respectively, at least two first pin as protection module's phase line end and first connection bridge connect, at least two first pin are inserted in lightning protection board surface. Through the design, can avoid the phenomenon that wiring port occurs secondary electromagnetic induction, effectively promotes voltage protection effect.

Description

Technical Field

[0001] This utility model relates to the field of power protection equipment technology, and in particular to a surge protector. Background Technology

[0002] A surge protector is a protective device that provides safety protection for various electronic devices, instruments, and communication lines. When electrical circuits or communication lines are damaged by lightning strikes or other transient overvoltages, the surge protector can cut off the power supply in time to protect downstream equipment.

[0003] However, existing surge protectors not only have cumbersome connection methods, making them difficult to install and maintain, but their wiring ports are also prone to secondary electromagnetic induction, which leads to poor protection performance. Utility Model Content

[0004] To address at least one deficiency in existing surge protectors, the surge protector provided by this invention includes a lightning protection plate, multiple protection modules electrically connected to the lightning protection plate, and at least one first connecting bar. The first connecting bar and the protection modules are located on the same side surface of the lightning protection plate. The first connecting bar includes a first connecting bridge, at least two first pins, a first input end, and a first output end. The first input end and the first output end are located at opposite ends of the first connecting bridge. The at least two first pins serve as the phase lines of the protection modules and are connected to the first connecting bridge. The at least two first pins are inserted into the surface of the lightning protection plate.

[0005] In one embodiment, a second connecting bar electrically connected to the surge protector is further included. The first connecting bar and the second connecting bar are located on the side of the protection module. The second connecting bar includes a second connecting bridge, a second pin, a second input end, and a second output end. The second input end and the second output end are respectively located at opposite ends of the second connecting bridge. The second pin serves as the neutral line end of each protection module and is connected to the second connecting bridge. The second pin is inserted into the surface of the surge protector. A wire clamping nut assembly is provided on the first input end, and a plug-in assembly is provided on the first output end. A wire clamping nut assembly is provided on the second input end, and a plug-in assembly is provided on the second output end.

[0006] In one embodiment, the first connecting bridge extends from one side of one of the protection modules to beyond both ends of the side of the protection module; the first input end and the first output end are located outside the two ends of the protection module, respectively.

[0007] In one embodiment, the second connecting bridge extends from one side of one of the protection modules to beyond both ends of the side of the protection module; the second input end and the second output end are located outside the two ends of the protection module, respectively.

[0008] In one embodiment, the system further includes a grounding terminal electrically connected to the lightning protection board; the protection module includes three sets of LN modules and one set of N-PE modules; the phase wires of the three sets of LN modules are each connected to three of the first connecting blocks; the neutral wires of the three sets of LN modules are connected to the second connecting blocks; the N-PE module is connected to the second connecting block via a unidirectional conductive component; and the grounding terminal of the N-PE module is connected to the grounding terminal.

[0009] In one embodiment, the surge protector is provided with a coating circuit. The phase terminals of the three LN modules are electrically connected to the first connecting bus through the coating circuit on the surge protector. The neutral terminals of the three LN modules are connected to the N-PE module through the second connecting bus after being combined through the coating circuit on the surge protector.

[0010] In one embodiment, the system further includes a signal module electrically connected to the lightning protection board. The signal module includes a remote signaling circuit board and multiple signal transmission ports electrically connected to the remote signaling circuit board. The signal transmission ports include one or more of the following: RS485 communication interface, switch / analog communication interface, and CAN communication interface.

[0011] In one embodiment, the surge protector has sockets at positions corresponding to the LN module, the N-PE module, the first connecting bar, and the second connecting bar; a first connecting bar and at least one LN module are divided into groups, and in each group, the surge protector has a socket corresponding to the first pin connected in series with a socket corresponding to the LN module and independent of other groups; the surge protector has another socket corresponding to each LN module connected in series as a common terminal; the second pin is connected in series with the common terminal; the surge protector has a socket corresponding to the N-PE module connected in series with a socket corresponding to the second connecting bar.

[0012] In one embodiment, the N-PE module and the grounding terminal are located on the same side or opposite side of the lightning protection plate.

[0013] Compared with the prior art, the surge protector provided by this utility model can achieve the following advantages through the structural and positional design of the first connecting bar and the protection module: 1) It avoids the phenomenon of secondary electromagnetic induction at the wiring port; 2) It can provide a surge protector with an external size that can be adapted to various current carrying capacities; 3) It integrates three commonly used communication lines, such as RS485 communication line, switch / analog communication line and CAN communication line, eliminating external wiring and effectively improving the voltage protection effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural diagram of a surge protector provided in an embodiment of this utility model;

[0016] Figure 2 An exploded view of a surge protector provided in an embodiment of this utility model;

[0017] Figure 3 , Figure 4 A schematic diagram of the internal structure of a surge protector provided in an embodiment of this utility model;

[0018] Figure 5 A three-dimensional structural schematic diagram of the first connecting row provided in an embodiment of the present utility model;

[0019] Figure 6 , Figure 7 A schematic diagram of the internal structure of a surge protector provided in another embodiment of this utility model;

[0020] Figure 8 for Figure 6 Circuit connection diagram of the lightning protection board in the structure;

[0021] Figure 9 , Figure 10 This is a schematic diagram of the internal structure of a surge protector provided in another embodiment of the present invention;

[0022] Figure 11 for Figure 9 Circuit connection diagram of the lightning protection board in the structure;

[0023] Figure 12 A three-dimensional structural schematic diagram of the first connecting row provided in another embodiment of the present utility model;

[0024] Figure 13 A three-dimensional structural schematic diagram of the second connecting row provided in another embodiment of the present utility model;

[0025] Figure 14 A circuit diagram of a 20kA surge protector provided in an embodiment of this utility model;

[0026] Figure 15 The circuit diagram of a 40ka surge protector provided in another embodiment of this utility model.

[0027] Figure label:

[0028] Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] This utility model provides a surge protector that effectively avoids secondary electromagnetic induction at the wiring port through structural design. The following is a detailed description of the solution of this utility model with reference to specific embodiments and accompanying drawings.

[0032] Example 1

[0033] Please see Figures 1-15 This embodiment provides a surge protector, including a lightning protection plate 10 and multiple sets of protection modules 20 and at least one first connection bar 30 electrically connected to the lightning protection plate 10.

[0034] The surge protector 10 features a coated circuit. This coated circuit is made of highly conductive and corrosion-resistant materials and applied to the surge protector 10 using processes such as printing and etching to improve circuit reliability and lifespan. Each protection module 20 makes electrical contact with the corresponding sockets 11 on the surge protector 10 via pins, providing protection against overvoltage or overcurrent in the power grid. The specific circuit and structural design of the surge protector 10 can be designed reasonably according to actual circuit requirements and is not limited here.

[0035] Preferably, each group of protection modules 20 includes one or more protection modules connected in parallel. As an example, the protection module includes at least one of a varistor module, a graphite gap module, and a gas discharge module to protect the circuit. Of course, the protection module can also be other overvoltage or overcurrent protection devices.

[0036] It should be noted that the accompanying drawings in this embodiment show four protection modules 20, such as... Figures 1-5 Each protection module group 20 includes one protection module to form a surge protector with a 20kA current carrying capacity, as well as... Figures 6-11 Each protection module group 20 includes two protection modules connected in parallel to form a surge protector with a current carrying capacity of 40kA, but this is not a limitation. The number, connection method, and type of protection modules can be increased or decreased according to actual needs.

[0037] As an example, when a surge protector with a 20kA current carrying capacity is constructed using four protection modules 20, each containing one protection module, the circuit diagram is as follows: Figure 14 As shown, the four protection modules are connected in parallel. When four protection modules 20, each containing two protection modules, are used to form a surge protector with a current carrying capacity of 40kA, the circuit diagram is as follows. Figure 15 As shown, the four protection modules 20 are connected in parallel, and the two protection modules in each protection module 20 are connected in parallel. The NC terminal is the signal input / output terminal, which is connected to each protection module for communication, and the PE terminal is the ground terminal. Interfaces L1-in, L2-in, L3-in, and N-in are the circuit input terminals of each protection module 20, and interfaces L1-out, L2-out, L3-out, and N-out are the circuit output terminals of each protection module 20.

[0038] Furthermore, this embodiment addresses the problem of secondary electromagnetic induction at existing wiring ports through the design of the first connection bar 30. For details, please refer to... Figure 3 , Figure 4The first connecting strip 30 and the protection module 20 are located on the same side surface of the lightning protection plate 10, and the first connecting strip 30 is located on the side of the protection module 20. By placing the first connecting strip 30 on the same side as the protection module 20, space is saved, the first connecting strip 30 is avoided from occupying space, and the compactness of the structure is improved.

[0039] Please see Figure 5 , Figure 12 The first connection bar 30 includes a first connection bridge 31, at least two first pins 32, a first input terminal 33, and a first output terminal 34. The first connection bridge 31, the first pins 32, the first input terminal 33, and the first output terminal 34 are an integral structure, or they may be partially detachable.

[0040] The first input end 33 and the first output end 34 are located at opposite ends of the first connecting bridge 31. That is, the opposite ends of the first connecting bridge 31 extend to form the first input end 33 and the first output end 34, which allows the input interface and the output interface to be located at opposite ends. This can effectively avoid the phenomenon that the strong magnetic field change at the interface due to the current change caused by the sharing of a single interface for the live wire or neutral wire, thereby causing secondary electromagnetic induction, and effectively improves the protection effect of the surge protector.

[0041] At least two of the first pins 32 on the first connecting bar 30 serve as the phase terminals of the protection module 20 and are connected to the first connecting bridge 31. The first pins 32 are directly plugged into the surge protector 10 for electrical connection. Similarly, the phase terminals of the protection module 20 are plugged into the surge protector 10 and electrically connected to the first connecting bar 30 through a coating circuit. The plugging method of the first connecting bar 20, the protection module 20, and the surge protector 10 can effectively adapt to the assembly of modules with different current flows on the surge protector 10, improving the practicality of the surge protector. Preferably, the dimension of the first connecting bar 30 perpendicular to the current direction is much smaller than the dimension of the first connecting bar 30 in the current direction. That is, the width of the first connecting bar 30 (in the direction perpendicular to the current flow) is much smaller than the length of the first connecting bar 30 (in the current flow direction), which can further reduce the installation space. The first pins 32 are disposed on the first connecting bridge 31 between the first input terminal 33 and the first output terminal 34. The current flowing through the first pin 32 forms a circuit through the first connecting bridge 31 to the first input terminal 33 and the first output terminal 34 at opposite ends, thereby avoiding secondary electromagnetic induction between the input and output terminals.

[0042] Optionally, considering that the input terminal needs to have surge withstand capability, a wire clamping nut assembly 35 is provided on the first input terminal 33 to connect the input terminal of the surge protector to the external circuit. As an example, the wire clamping nut assembly 35 includes, but is not limited to, the cooperation of screws, clamping nuts, spring washers, and gaskets. Specifically, the first input terminal 33 has a through hole, and the screw passes through the spring washer, gasket, and through hole to lock onto the clamping nut to serve as the input port of the surge protector.

[0043] Optionally, considering that the output terminal should be capable of handling load current, a plug-in assembly 36 is provided on the first output terminal 34 to connect the output terminal of the surge protector to the external circuit. As an example, the plug-in assembly 36 includes, but is not limited to, plug-in components, which can be spot-welded onto the first output terminal 34 to serve as the output port of the surge protector.

[0044] To further improve structural compactness, in this embodiment, the first connecting bridge 31 extends from one side of one of the protection modules 20 to beyond both ends of the side of the protection module 20; the first input end 33 and the first output end 34 are respectively located on the outer sides of the two ends of the protection module 20. That is, the first connecting bar 30 is designed on the side of the protection module 20, and the wire clamping nut assemblies 35 and the plug-in assembly 36 at both ends are arranged at the ends of the protection module 20, so as to effectively reduce the space occupied, especially to meet the requirement of the surge protector reaching a height of 1U.

[0045] It should be noted that the structure of the first connecting row 30 is not limited to the structure shown in the accompanying drawings. Depending on the actual structure and functional requirements, those skilled in the art can design it in other styles, and this embodiment is not limited thereto.

[0046] In an optional implementation, to accommodate the protection module 20 that provides additional protection between the neutral and ground wires in the surge protector, please refer to... Figures 6-13 The surge protector in this embodiment also includes a second connection bar 40 electrically connected to the lightning protection plate 10. The second connection bar 40 is located on the side of the protection module 20 to make the structure compact.

[0047] Please see Figure 13The second connection bar 40 includes a second connection bridge 41, a second pin 42, a second input terminal 43, and a second output terminal 44. The second connection bridge 41, the second pin 42, the second input terminal 43, and the second output terminal 44 can be an integral structure or a partially detachable structure. Preferably, the dimension of the second connection bar 40 perpendicular to the current flow direction is much smaller than its dimension along the current flow direction. That is, the width of the second connection bar 40 (perpendicular to the current flow direction) is much smaller than its length (in the current flow direction), which further reduces the installation space.

[0048] The second input end 43 is located at opposite ends of the second connecting bridge 41, and the second pin 42 serves as the neutral line terminal of each protection module 20, connecting to the second connecting bridge 41. Similarly, the second pin 42 is inserted into the surge protector 10 to effectively accommodate modules with different current flows on the surge protector 10. A wire clamping nut assembly 35 is provided on the second input end 43, and a plug-in assembly 36 is provided on the second output end 44. Likewise, through the structural and positional design of the second connecting bridge 41, the second input end 43, and the second input end 44, secondary magnetic induction problems at the interface of the neutral line terminal of the protection module 20 can be effectively avoided. The structures of the wire clamping nut assembly 35 and the plug-in assembly 36 can refer to the structure on the aforementioned first connecting bar 30, and will not be repeated here.

[0049] Preferably, the second connecting bridge 41 extends from one side of one of the protection modules 20 to both ends of the side of the protection module 20; the second input end 43 and the second output end 44 are located outside the two side ends of the protection module 20, respectively.

[0050] In an optional embodiment, the surge protector further includes a grounding terminal 50, which is electrically connected to the lightning protection plate 10. Specifically, the grounding terminal 50 can be connected to the lightning protection plate 10 via a dedicated grounding post, grounding bolt, or grounding clamp, or by a wiring connection.

[0051] To effectively illustrate the solution of this utility model, this embodiment takes a 3+1 protection module 20 as an example. The protection module 20 may include three LN modules 21 and one N-PE module 22. The four protection modules 20 are respectively soldered or plugged into the surge protection plate 10 via pins. Please refer to [link / reference]. Figures 1-5 When the surge protector has a current carrying capacity of 20ka, each LN module 21 includes one protection module; please refer to [link / reference]. Figures 6-11 When the surge protector has a current carrying capacity of 40ka, each LN module 21 includes two protection modules connected in parallel.

[0052] Further, please refer to Figure 8 , Figure 8 This diagram illustrates the circuit connection between the surge protector 10 and the protection module 20. The arrows indicate the installation positions of the protection module 20, the first pin 32, the second pin 42, and the grounding terminal 50, respectively. In practice, the phase lines of the three LN modules 21 are each connected to the three first connection blocks 30. The neutral lines of the three LN modules 21 are connected to the second connection block 40 after the middle circuit lines of the surge protector 10 converge. One N-PE module is connected to the second connection block via a unidirectional conductive component, such as a GDT (not shown in the diagram). This conductive component is in a non-conductive state under normal operation and becomes conductive during surges, allowing the N-PE module to connect to the circuit for protection during surges. The grounding terminal of one N-PE module 22 is positioned opposite the grounding terminal 50, and the grounding terminal of the N-PE module 22 is connected to the grounding terminal 50 around the surge protector 10. This configuration effectively achieves the protection function of the surge protector.

[0053] For details, please continue reading Figure 8 , Figure 11 The phase terminals of the three LN modules 21 are electrically connected to the first connecting bus 30 via the coating circuit on the surge protector 10 to achieve surge protection and circuit connection for the phase lines. Specifically, the phase terminals of the LN modules 21 are connected to the corresponding coated circuit points on the surge protector 10 through welding, crimping, or other methods, while the coating circuit on the surge protector 10 is connected to the pins of the first connecting bus 30. Simultaneously, the neutral terminals of the three LN modules 21 are combined through the coating circuit on the surge protector 10 to form a common terminal. This common terminal is then connected to the second connecting bus 40 via two series-connected N-level sockets 11, thereby achieving the neutral line current collection and surge protection functions. In other words, the neutral terminals of the three LN modules 21 are first collected through the coating circuit on the surge protector 10. The coating circuit on the surge protector 10 integrates the current from the three neutral terminals and then transmits it to the pins of the second connecting bus 40 through the circuit path on the coating circuit. One set of N-PE modules is connected to a second connection bar via a unidirectional conductive component. The conductive component can be a reverse-biased gas discharge tube or diode, among other structures. Taking a gas discharge tube as an example, it is filled with inert gas, and under normal voltage, the two poles of the gas discharge tube are insulated, providing ground protection for the PE module. This connection method not only improves the system's lightning protection performance but also optimizes the circuit connection structure, ensuring the system's stability and safety.

[0054] Furthermore, the coated circuitry on the surge protector 10 is electrically connected to the protection module 20, the first connecting bar 30, and the second connecting bar 40 via sockets 11. Please continue reading. Figure 8 , Figure 11The surge protector 10 has sockets 11 at positions corresponding to the LN module 21, the N-PE module 22, the first connecting bus 30, and the second connecting bus 40. A first connecting bus 30 and at least one LN module 21 are grouped together, with isolation through-holes 12 between adjacent groups to ensure insulation between them and prevent accidental mutual interference or short circuits. In each group, the surge protector 10 has a socket 11 corresponding to the first pin 32 connected in series with a socket 11 corresponding to the LN module 21, independent of other groups. The surge protector 10 has another socket 11 corresponding to each LN module 21 connected in series as a common terminal. The second pin 42 is connected in series with the common terminal. The surge protector 10 has a socket 11 corresponding to the N-PE module 22 connected in series with a socket 11 corresponding to other pins on the second connecting bus 40 except for the second pin 42. The lightning protection plate 10 has another socket 11 corresponding to the N-PE module 22, which is connected in series with the grounding terminal 50 and has an isolation through hole 12 between it and the common terminal to ensure insulation disconnection.

[0055] Preferably, the surge protector 10 has a socket 11 at the position corresponding to the grounding terminal 50, and another socket 11 of the surge protector 10 corresponding to the N-PE module 22 is connected in series with the socket 11 corresponding to the grounding terminal 50.

[0056] Based on the aforementioned protection module 20, it should be noted that the second connection bar 40 is not only connected to the second pin 42, but also, according to the actual needs of the protection module 20, to connect other pins to achieve corresponding functions, such as... Figure 13 As shown. Specifically, when using LN module 21 and N-PE module 22, the second connection bar 40 also includes a third pin 45 located near the wire clamping nut assembly 35 and the insert assembly. The third pin 45 is connected to the N-PE module 22 via a unidirectional conduction component.

[0057] For further information, please refer to [link / reference]. Figure 8 The N-PE module 22 and the grounding terminal 50 are respectively located on opposite sides of the surge protection plate 10, and a connection path is designed around the periphery of the surge protection plate 10 between the N-PE module 22 and the grounding terminal 50. Figure 8 The surge protector structure corresponding to the circuit layout shown is as follows: Figure 6 , Figure 7 As shown, the N-PE module 22 is located on the bottom, and the grounding terminal 50 is located on the top. For a simplified structural layout, please refer to [link to relevant documentation]. Figure 11 The N-PE module 22 and the grounding terminal 50 can be placed on the same side of the surge protector 10, allowing for a close connection between the N-PE module 22 and the grounding terminal 50 without needing to surround the surge protector 10. Figure 11 The surge protector structure corresponding to the circuit layout shown is as follows: Figure 9 , Figure 10 As shown, both the N-PE module 22 and the grounding terminal 50 are located on the lower side. Compared to Figures 6-8 In terms of structure and circuit layout, Figures 9-11 The structure and circuit layout can effectively shorten the connection path between the N-PE module 22 and the grounding terminal 50, making the structure more compact.

[0058] Example 2

[0059] Please see Figure 6 The surge protector provided in this embodiment also includes a signal module 60 electrically connected to the lightning protection board 10 for signal detection. The signal module 60 includes a remote signaling circuit board 61 and multiple signal transmission ports 62 electrically connected to the remote signaling circuit board 61; the signal transmission ports 62 include one or more of RS485 communication interfaces, switch / analog communication interfaces, and CAN communication interfaces, and can simultaneously display 8 different connection methods.

[0060] The signal transmission port 62 includes a signal input port and a signal output port. The signal input port can use a conventional 2*4 pin interface terminal, and the signal output port can use a rectangular gold finger socket. The signal input port and signal output port are plugged into the remote signaling circuit board 61. As an example, the signal module 60 is electrically connected to the surge protector 10 via a wire, thereby connecting the signal module 60 to the protection module 20 through the circuitry on the surge protector. For example... Figure 8 , Figure 11 As shown, NC1 and NC2 are the connection points between the signal module 60 and the surge protector, respectively.

[0061] Traditional surge protectors only have a remote signaling dry contact output function for tripping due to body deterioration. While this function can meet basic alarm and status indication requirements, it lacks other more advanced communication line functions. Adding communication functionality requires external communication cables, which not only wastes cost and installation space and affects assembly, but is also susceptible to aging and damage due to external environmental factors. Therefore, this embodiment adds commonly used communication lines such as RS485 communication interfaces, switch / analog communication interfaces, and CAN communication interfaces to the signal module 60. This eliminates the need for external wiring, reduces redundant structure, lowers costs, improves structural space utilization, and enhances communication stability and reliability.

[0062] Example 3

[0063] Please see Figure 1To accommodate the surge protector structure provided in this application, the surge protector in this embodiment further includes an upper housing 71 and a lower housing 72. The upper housing 71 and the lower housing 72 are detachably connected, and their interiors form a cavity capable of accommodating the protection module 20 and the lightning protection plate 10. To facilitate the assembly of the upper housing 71 and the lower housing 72, this embodiment preferably uses a snap-fit ​​connection between the upper housing 71 and the lower housing 72, while a bolt structure is used to thread the upper housing 71 through the lightning protection plate 10 and connect to the lower housing 72, thereby providing a limiting and fixing function.

[0064] Specifically, the structures of the upper housing 71 and the lower housing 72 should be compatible with the protection module 20, the surge protector 10, and related accessories. This embodiment is not limited to the structures of the upper housing 71 and the lower housing 72 shown in the attached drawings. Preferably, the upper housing 71 and / or the lower housing 72 are provided with several windows that expose the signal transmission port 62, the grounding terminal 50, the wire clamping nut assembly 35, and the plug-in assembly 36, so as to facilitate the connection between the external line and the surge protector.

[0065] Furthermore, the lower housing 72 includes a placement portion 72a and abutment portions 72b located at opposite ends of the placement portion 72a; the placement portion 72a is used to place the surge protector 10 and the protection module 20; the abutment portions 72b located at opposite ends of the placement portion 72a are respectively used to abut the wire clamping nut assembly 35 and the insert connector assembly 36. This design allows for a reasonable layout of the protection module 20, the surge protector 10, and the first connecting row 30, further improving the structural compactness and contributing to a reduction in the overall size of the surge protector.

[0066] In this embodiment, the surge protector can achieve a height of 1U by controlling the dimensions of each component and the upper housing 71 and lower housing 72. Furthermore, the surge protector provided by this invention can be reasonably adjusted in size and structure to adapt to various products with different current-carrying capacities, based on different current-carrying module dimensions and volume requirements. During product installation, differences in size will not affect assembly and use, meeting the needs of different application scenarios and electrical systems, and thus possessing wide applicability.

[0067] Although this document uses terms such as lightning protection board, protection module, first connecting bar, second connecting bar, signal module, upper housing, and lower housing frequently, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A surge protector, characterized by: It includes a lightning protection board, multiple sets of protection modules electrically connected to the lightning protection board, and at least one first connection bar; the first connection bar and the protection modules are located on the same side surface of the lightning protection board; The first connection bar includes a first connection bridge, at least two first pins, a first input end, and a first output end. The first input end and the first output end are located at opposite ends of the first connection bridge. The at least two first pins are connected to the first connection bridge as phase lines of the protection module. The at least two first pins are plugged into the surface of the lightning protection board.

2. The surge protector of claim 1, wherein: It also includes a second connecting bar that is electrically connected to the lightning protection board, wherein the first connecting bar and the second connecting bar are located on the side of the protection module; The second connection bar includes a second connection bridge, a second pin, a second input end, and a second output end. The second input end and the second output end are located at opposite ends of the second connection bridge. The second pin serves as the neutral line end of each protection module and is connected to the second connection bridge. The second pin is inserted into the surface of the surge protector. A wire clamping nut assembly is provided on the first input end, and a plug-in assembly is provided on the first output end. A wire clamping nut assembly is provided on the second input end, and a plug-in assembly is provided on the second output end.

3. The surge protector of claim 1, wherein: The first connecting bridge extends from one side of one of the protection modules to both ends of the side of the protection module; the first input end and the first output end are located outside the two ends of the protection module, respectively.

4. The surge protector of claim 2, wherein: The second connecting bridge extends from one side of one of the protection modules to both ends beyond the side of the protection module; the second input end and the second output end are located outside the two side ends of the protection module, respectively.

5. The surge protector according to claim 2, characterized in that: It also includes a grounding terminal, which is electrically connected to the lightning protection board; the protection module includes three sets of LN modules and one set of N-PE modules; The phase lines of the three LN modules are each connected to the three first connecting blocks; the neutral lines of the three LN modules are connected to the second connecting blocks; one N-PE module is connected to the second connecting blocks through a unidirectional conductive component; and the grounding terminal of one N-PE module is connected to the grounding terminal.

6. The surge protector according to claim 5, characterized in that: The surge protector is equipped with a coating circuit. The phase lines of the three LN modules are electrically connected to the first connecting bus via the coating circuit on the surge protector. The neutral lines of the three LN modules are connected to the N-PE module via the second connecting bus after being combined through the coating circuit on the surge protector.

7. The surge protector according to claim 1, characterized in that: It also includes a signal module electrically connected to the lightning protection board. The signal module includes a remote signaling circuit board and multiple signal transmission ports electrically connected to the remote signaling circuit board. The signal transmission ports include one or more of RS485 communication interfaces, switch / analog communication interfaces, and CAN communication interfaces.

8. The surge protector according to claim 1, characterized in that: It also includes an upper housing and a lower housing, which are detachably connected and have an internal cavity that can accommodate the protection module and the lightning protection plate.

9. The surge protector according to claim 6, characterized in that: The surge protector has sockets at positions corresponding to the LN module, the N-PE module, the first connecting bar, and the second connecting bar; a first connecting bar and at least one LN module are divided into a group, and in each group, the surge protector has a socket corresponding to the first pin connected in series with a socket corresponding to the LN module and is independent of other groups; the surge protector has another socket corresponding to each LN module connected in series to form a common terminal; the second pin is connected in series with the common terminal; the surge protector has a socket corresponding to the N-PE module connected in series with a socket corresponding to the second connecting bar.

10. The surge protector according to claim 9, characterized in that: The N-PE module and the grounding terminal are located on the same side or opposite side of the lightning protection plate.

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