A seat body and a pluggable surge protector

Abstract

The utility model relates to a seat body and pluggable surge protector belong to the field of surge protector, this pluggable surge protector includes seat body and several plug -in modules, and the seat body includes the plug -in cavity for installing plug -in module, is provided with several plug -in interfaces in the plug -in cavity, and the periphery of plug -in interface is provided with annular first convex rib, and the first convex rib is protruding upwards from the bottom surface of plug -in cavity and is configured to increase the creepage distance between the inside and outside of plug -in interface. The pluggable surge protector provided by the utility model, the plug -in interface of the seat body is closed by the first convex rib, and the surface discharge path must bypass the first convex rib, forming a zigzag extending creepage path, effectively prolonging the creepage path and the electrical clearance without increasing the product volume, significantly improving the electrical safety, reliability and service life of the pluggable surge protector in the high-voltage, small-sized application scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of surge protectors, specifically relating to a base and a pluggable surge protector. Background Technology

[0002] A surge protector is an electrical device used to limit transient overvoltages and discharge voltage and current. It can provide safety protection for various electronic devices, instruments, and communication lines. It can effectively protect equipment from damage caused by surge pulses and transient overvoltages from external factors (lightning strikes, electromagnetic interference, etc.) or internal factors (system switching effects, starting and stopping of induced and capacitive loads, etc.).

[0003] With the rapid development of new energy systems (such as photovoltaic power generation, wind power generation, and energy storage systems), system voltage levels are constantly increasing, placing higher demands on the withstand voltage rating (1500V and above) and current carrying capacity (meeting T1+T2 requirements) of surge protectors (SPDs). At the same time, modern electrical equipment has increasingly stringent requirements for space utilization, requiring surge protectors to meet electrical safety performance at higher voltages without increasing structural dimensions.

[0004] In high-voltage operating environments, surge protectors (SPDs) must meet strict electrical clearance and creepage distance requirements between live components and between live components and the casing to prevent surface flashover (creep) or breakdown discharge faults caused by insulation failure. However, traditional SPD products often employ flat inner surfaces or simple partitions in their structural design, resulting in short surface distances (creep distances) between live conductors or between conductors and grounded components. In harsh environments such as high humidity and dust accumulation, surface flashover (creep) faults are prone to occur, leading to insulation failure or even fires. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a base and a pluggable surge protector, which can effectively improve the above-mentioned problems.

[0006] The technical solution of this utility model is as follows: This utility model provides a base for a pluggable surge protector, characterized in that it includes a pluggable cavity for installing a pluggable module, the pluggable cavity is provided with a plurality of pluggable interfaces, and the pluggable interfaces are provided with annular first ribs around them. The first ribs protrude upward from the bottom surface of the pluggable cavity and are configured to increase the creepage distance inside and outside the pluggable interfaces.

[0007] As an optional solution, the insertion and extraction cavity is provided with opposing protrusions at both ends in the first direction, and the insertion and extraction cavity is interconnected in the second direction and is provided with side ribs at both ends.

[0008] As an optional solution, the base is provided with a wiring area, the wiring area is provided with a screw hole and a movable cover plate for opening and closing the screw hole.

[0009] Alternatively, the movable cover is hinged to the seat and is used to close or open the wiring area.

[0010] As an optional feature, a second annular rib is provided around the screw hole, and the second rib protrudes upward from the bottom surface of the wiring area.

[0011] As an optional feature, when the movable cover plate closes the wiring area, the second protruding rib abuts against the movable cover plate.

[0012] As an optional solution, one end of the base is provided with an input interface and the other end is provided with an output interface, and both the input interface and the output interface are provided with annular third protrusions around their perimeter.

[0013] As an optional solution, the housing is provided with a support compartment located below the plug-in interface, and the support compartment is surrounded by several strip baffles.

[0014] As an optional solution, a first anti-foolproof part is provided inside the insertion / removal cavity.

[0015] This utility model also provides a pluggable surge protector, including a base and several pluggable modules, wherein the pluggable modules are pluggable and detachable within the pluggable cavity.

[0016] As an alternative, the plurality of pluggable modules include at least one first module and at least two second modules, wherein the at least two second modules are connected in parallel and are respectively connected in series with the first module.

[0017] As an optional solution, the plug-in module is provided with a blocking slider and a remote signaling push block, and the base is provided with a remote signaling alarm component. When the blocking slider slides, it can push the remote signaling push block and trigger the remote signaling alarm component.

[0018] The sidewall of the insertion / removal cavity and the corresponding side of the insertion / removal module are provided with vertical insertion strips and slots, and the insertion strips and slots are slidably engaged.

[0019] As an optional solution, a deformable spring is provided on one side of the plug-in module, the deformable spring is provided with a hook, and a blocking part is provided on the base, the hook being able to hook the blocking part.

[0020] As an optional solution, the plug-in module is provided with a connector, the connector is folded in half to form a U-shape or V-shape, and the input or output terminals of the base are provided with square plug interfaces.

[0021] As an optional solution, the connecting spring is made of tin-plated copper alloy.

[0022] The beneficial effects of this utility model are: The pluggable surge protector provided by this utility model has a pluggable interface on its base that is closed by a first protruding rib. The surface discharge path must bypass the first protruding rib to form a tortuous creepage path, which can effectively extend the creepage path inside and outside the pluggable interface, increase the creepage distance, effectively improve the surface insulation strength, and prevent creepage breakdown caused by moisture or pollution.

[0023] Without increasing product size, this design effectively extends creepage paths and clearances, significantly improving the electrical safety, reliability, and lifespan of pluggable surge protectors in high-voltage, miniaturized applications. This design is particularly suitable for applications with extremely high requirements for insulation performance and space utilization, such as new energy systems, high-voltage AC / DC power distribution, and compact switchgear, demonstrating excellent technological advancement and market application scenarios. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The above and other objects, features, and advantages of this utility model will become clearer through the drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not intentionally drawn to scale to actual dimensions; the focus is on illustrating the main idea of ​​this utility model.

[0025] Figure 1 Schematic diagram of the pluggable surge protector provided in the embodiments of this utility model Figure 1 ; Figure 2 Schematic diagram of the pluggable surge protector provided in the embodiments of this utility model Figure 2 ; Figure 3 Schematic diagram of the structure of the socket of the pluggable surge protector provided in the embodiment of this utility model Figure 1 ; Figure 4 Schematic diagram of the structure of the socket of the pluggable surge protector provided in the embodiment of this utility model Figure 2 ; Figure 5 Schematic diagram of the structure of the socket of the pluggable surge protector provided in the embodiment of this utility model Figure 3 ; Figure 6A schematic diagram of the structure of the socket (without a movable cover) of the pluggable surge protector provided in this embodiment of the utility model; Figure 7 Schematic diagram of the internal structure of the socket of the pluggable surge protector provided in the embodiment of this utility model Figure 1 ; Figure 8 Schematic diagram of the internal structure of the socket of the pluggable surge protector provided in the embodiment of this utility model Figure 2 ; Figure 9 A schematic diagram of the pluggable module of the pluggable surge protector provided in this embodiment of the utility model; Figure 10 Schematic diagram of the internal structure of the pluggable module of the pluggable surge protector provided in this embodiment of the utility model Figure 1 ; Figure 11 Schematic diagram of the internal structure of the pluggable module of the pluggable surge protector provided in this embodiment of the utility model Figure 2 .

[0026] Icons: 10 - Pluggable surge protector; 20 - Base; 30 - Pluggable module; 210 - Pluggable cavity; 211 - Pluggable interface; 212 - First rib; 213 - First anti-foolproof part; 214 - Insert; 220 - Raised base; 221 - Side rib; 230 - Wiring area; 231 - Screw hole; 232 - Movable cover; 233 - Second rib; 240 - Input terminal; 241 - Output terminal; 242 - Input interface; 243 - Output interface 244-Third protruding rib; 250-Bearing compartment; 251-Strip baffle; 252-Remote signaling alarm component; 310-Housing; 311-Mounting base; 312-Low temperature welding spring; 313-Input component; 314-Output component; 315-Pressure-sensitive element; 316-Blocking slider; 317-Reset spring; 318-Connector; 320-Deformable spring; 321-Hook; 330-Remote signaling push block; 331-Slot; 332-Second foolproof part. Detailed Implementation

[0027] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0031] Please refer to Figure 1 , Figure 2 As shown, this embodiment of the present invention provides a pluggable surge protector 10, which is mainly used to protect downstream precision electrical appliances. In the event of a surge, it can guide dangerous overvoltages to a safe path such as ground within a very short time. The pluggable surge protector 10 provided in this embodiment is particularly suitable for applications with extremely high requirements for insulation performance and space utilization, such as new energy systems, high-voltage AC / DC power distribution, and compact distribution cabinets. Of course, it can also be applied to other applications.

[0032] The pluggable surge protector 10 mainly consists of a base 20 and several pluggable modules 30. The number of pluggable modules 30 can be set as needed, such as one, two, three, four, etc. In this embodiment, the number of pluggable modules 30 is four.

[0033] The pluggable module 30 is pluggable into the base 20 and the two are electrically connected. The pluggable module 30 and the base 20 can be separated from each other.

[0034] The following section provides a detailed discussion of each component of the pluggable surge protector 10.

[0035] The base 20 is mainly used for electrical connection with external lines.

[0036] The shape and structure of the seat 20 are not limited and can be referenced from existing technologies. In this embodiment, the following solutions can be adopted, but are not limited to: Please refer to... Figures 3-6 As shown, the cross-section of the base 20 is roughly U-shaped. A downwardly recessed insertion cavity 210 is provided in the middle of the base 20. The depth of the insertion cavity 210 can be set as needed, and can be large or small. The insertion cavity 210 is mainly used to install the insertion module 30, that is, part or all of the insertion module 30 can be inserted into the insertion cavity 210.

[0037] For ease of description, the orientation of the seat 20 is first defined as follows: Figure 5 For example, the base 20 includes a first direction, a second direction, and a third direction that are perpendicular to each other. The first direction is the left-right direction, the second direction is the up-down direction, and the third direction is the thickness direction of the base 20, which is perpendicular to the paper surface.

[0038] In the first direction, protrusions 220 are provided at both ends of the insertion / removal cavity 210, with the two protrusions 220 facing each other and higher than the bottom surface of the insertion / removal cavity 210. In the second direction, the insertion / removal cavity 210 is through, and side ribs 221 are provided at both ends of the insertion / removal cavity 210. The side ribs 221 can be plate-shaped or block-shaped, etc., and protrude upward from the bottom surface of the insertion / removal cavity 210. The height of the protrusions can be set as needed and does not need to be too large. Generally speaking, the height of the side ribs 221 is much smaller than the height of the protrusions 220. The side ribs 221 and the protrusions 220 together enclose the insertion / removal cavity 210, and the side ribs 221 can further increase the creepage distance inside and outside the insertion / removal cavity 210. Of course, in some embodiments, it is also possible not to provide side ribs 221.

[0039] The base 20 has several input interfaces 242 and several output interfaces 243. The number of input interfaces 242 and output interfaces 243 can be set as needed. For example, the number of input interfaces 242 can be two or three, and the number of output interfaces 243 can be one, two, or three. The number of input interfaces 242 and output interfaces 243 generally needs to match the number and setting method of the plug-in modules 30.

[0040] The positions of the input interface 242 and the output interface 243 can be set as needed. In this embodiment, the input interface 242 and the output interface 243 are located at both ends of the base 20 along the first direction. In other embodiments, the input interface 242 and the output interface 243 may also be located on adjacent sides of the base 20, or at both ends of the base 20 along the second direction, etc.

[0041] Please combine Figure 7 , Figure 8 As shown, the housing 20 includes a pair of input terminals 240 and output terminals 241. The style and material of the input terminals 240 and output terminals 241 are not limited. For example, both the input terminals 240 and output terminals 241 can be made of block metal, sheet metal, or wires, etc. Both the input terminals 240 and output terminals 241 are conductive. Generally, the multiple input terminals 240 are not connected to each other. The multiple input terminals 240 can be integrally formed or not connected to each other.

[0042] The corresponding input terminal 240 and output terminal 241 are disconnected and can be electrically connected to the two connectors 318 of the plug-in module 30 respectively, so that current can flow from the input terminal 240 through the plug-in module 30 to the output terminal 241. One end of some or all of the input terminals 240 extends into the input interface 242 and is used for electrical connection to the input terminal of an external line, and one end of some or all of the output terminals 241 extends into the output interface 243 and is used for electrical connection to the output terminal of an external line.

[0043] The plug-in cavity 210 is provided with a number of plug-in interfaces 211. The number of plug-in interfaces 211 can be determined according to the number of plug-in modules 30. Generally speaking, each plug-in module 30 corresponds to two plug-in interfaces 211. Both the input terminal 240 and the output terminal 241 are provided with connection terminals. Each plug-in interface 211 is provided with one corresponding connection terminal, which is located inside the plug-in interface 211.

[0044] The shape of the plug-in interface 211 is not limited, such as its cross-section being circular or rectangular. The plug-in interface 211 is mainly used to match the plug-in head of the plug-in module 30, that is, the plug-in head can be inserted into the corresponding plug-in interface 211 and electrically connected to the connection terminal.

[0045] The plug-in interface 211 is surrounded by first protruding ribs 212. These ribs are annular, such as circular, square, or irregular rings. The first protruding ribs 212 enclose the plug-in interface 211. Each first protruding rib 212 protrudes upwards from the bottom surface of the plug-in cavity 210, meaning it is higher than the bottom surface of the cavity. The height of the first protruding ribs 212 can be adjusted as needed. The first protruding ribs 212 keep the plug-in interface 211 within a closed area. If current needs to travel from inside the plug-in interface 211 to the outside, it must pass over the first protruding ribs 212. Therefore, the first protruding ribs 212 effectively extend the creepage path inside and outside the plug-in interface 211, increasing the creepage distance.

[0046] The first rib 212 can increase the creepage distance between two adjacent plug-in interfaces 211, and also increase the distance between the plug-in interface 211 and the side wall of the protrusion seat 220.

[0047] In addition, a first anti-mistake part 213 may be provided in the insertion / removal cavity 210, and a second anti-mistake part 332 may be provided on the insertion / removal module 30. The first anti-mistake part 213 and the second anti-mistake part 332 cooperate with each other. The style of the first anti-mistake part 213 and the second anti-mistake part 332 can be set as needed. For example, the first anti-mistake part 213 is a prism hole structure and the second anti-mistake part 332 is a prism structure, and the second anti-mistake part 332 can be inserted into the first anti-mistake part 213; or the second anti-mistake part 332 is a prism hole structure and the first anti-mistake part 213 is a prism structure, and the first anti-mistake part 213 can be inserted into the second anti-mistake part 332.

[0048] The base 20 is provided with a wiring area 230. The location of the wiring area 230 is not limited. For example, the wiring area 230 can be provided on the side wall or bottom wall of the protrusion 220. In this embodiment, the wiring area 230 is located at the top of the protrusion 220. A screw hole 231 is provided in the wiring area 230. The screw hole 231 is used to install a wire clamping screw. The wire clamping screw can be a screw or a bolt, etc.

[0049] Input terminal 240 and output terminal 241 are respectively engaged with corresponding wire clamping screws. When the wire clamping screws are tightened, the input terminal 240 or output terminal 241 can move within the input interface 242 or output interface 243, so that the input terminal 240 or output terminal 241 can clamp and electrically connect the external wire, or loosen the external wire. This structure is relatively conventional and belongs to the prior art, and will not be described in detail here.

[0050] In some embodiments, please combine Figure 6 As shown, to extend the creepage distance inside and outside the screw opening 231, a second rib 233 can be provided around the screw opening 231. The second rib 233 is annular, such as a circular ring, square ring, or irregular ring. The second rib 233 encloses the screw opening 231. Each second rib 233 protrudes upward from the bottom surface of the wiring area 230, meaning the second rib 233 is higher than the bottom surface of the wiring area 230. The second rib 233 keeps the screw opening 231 within a closed area. If current needs to travel from inside the screw opening 231 to the outside, it must cross the second rib 233. Therefore, the second rib 233 can effectively extend the creepage path inside and outside the screw opening 231 and increase the creepage distance.

[0051] In addition, the wiring area 230 may also be provided with a movable cover plate 232, which is movably engaged with the protrusion 220 to open and close the screw hole 231. When the movable cover plate 232 closes the wiring area 230, the screw hole 231 is blocked; when the movable cover plate 232 opens the wiring area 230, the operator can operate and tighten the wire clamping screw inside the wiring hole. Of course, in other embodiments, the wiring area 230 may not be provided with a movable cover plate 232.

[0052] The movable connection between the movable cover plate 232 and the seat 20 is not limited, such as sliding connection, hinge connection, etc. Preferably, the movable cover plate 232 is hinged to the protrusion seat 220, and a hinge shaft is provided between the movable cover plate 232 and the seat 20, so that the movable cover plate 232 can rotate relative to the protrusion seat 220 around the hinge shaft.

[0053] The height of the second protruding rib 233 is not limited and can be set as needed. Preferably, when the movable cover 232 closes the wiring area 230, the second protruding rib 233 abuts against the movable cover 232. With this configuration, the movable cover 232 can completely close the screw hole 231, preventing creepage. Of course, in some embodiments, when the movable cover 232 is closed, a gap may exist between the top of the second protruding rib 233 and the movable cover 232.

[0054] In addition, third ribs 244 can be provided around the input interface 242 and the output interface 243. The third ribs 244 are annular, such as circular, square, or irregular rings. The third ribs 244 enclose the input interface 242 or the output interface 243. Each third rib 244 protrudes outward from the side wall of the base 20, that is, the third rib 244 is higher than the side wall of the base 20. The height of the third rib 244 can be set as needed, and can be large or small. The third ribs 244 keep the input interface 242 or the output interface 243 within a closed area. If current needs to travel from inside the input interface 242 or the output interface 243 to the outside, it must cross the third ribs 244. Therefore, the third ribs 244 can effectively extend the creepage path inside and outside the input interface 242 or the output interface 243 and increase the creepage distance.

[0055] In addition, in some embodiments, a support chamber 250 may be provided inside the base 20. The support chamber 250 has an opening at its top and is located below and opposite the plug-in interface 211. The support chamber 250 is used to support the connection terminal. When the plug 318 is inserted into the plug-in interface 211, the plug-in portion can pass through the connection terminal and extend into the support chamber 250. Several strip baffles 251 are provided around the support chamber 250. The strip baffles 251 can be spaced apart in the vertical direction (i.e., the third direction). The strip baffles 251 have the function of increasing the strength of the support chamber 250 and increasing the creepage distance on the outside of the support chamber 250. Of course, in other embodiments, it is also possible not to provide a support chamber 250 inside the base 20.

[0056] The pluggable module 30 is pluggable and disposed in the pluggable cavity 210, and the plug connector 318 of the pluggable module 30 is engaged with the pluggable interface 211 of the pluggable cavity 210.

[0057] Multiple pluggable modules 30 can be connected in series, for example, four pluggable modules 30 connected in series, with the pluggable modules 30 at both ends electrically connected to the base 20. They can also be connected in parallel, or a combination of series and parallel connections. In this embodiment, the following scheme is preferred: the four pluggable modules 30 include one first module and three second modules. The three second modules are connected in parallel and each connected in series with the first module. Correspondingly, the input terminals 240 of the three second modules are spaced apart, and their output terminals 241 are integrally formed or spaced apart. The output terminals 241 of the second modules are electrically connected to the input terminals 240 of the first module. This configuration allows the pluggable surge protector 10 to meet the requirements of high voltage and high current carrying capacity.

[0058] Of course, in other embodiments, the number of the first module and the number of the second module can also be changed. For example, if the number of pluggable modules 30 is three, two second modules are connected in parallel and connected in series with one first module; or if the number of pluggable modules 30 is four, two second modules are connected in parallel and connected in series with two first modules respectively, etc.

[0059] The structure of the pluggable module 30 can refer to existing technology. In this embodiment, please refer to... Figures 9-11 As shown, the plug-in module 30 mainly consists of a housing 310 and a mounting base 311, a low-temperature welding spring 312, an input component 313, an output component 314, a pressure-sensitive element 315, and a blocking slider 316 located inside the housing 310. The low-temperature welding spring 312, the input component 313, the output component 314, the pressure-sensitive element 315, and the blocking slider 316 can all be installed on the mounting base 311.

[0060] The input component 313, the low-temperature welding spring 312, the pressure-sensitive element 315, and the output component 314 are electrically connected in sequence. The low-temperature welding spring 312 and the pressure-sensitive element 315 are connected by low-temperature welding, allowing them to detach at high temperatures. The blocking slider 316 is slidably mounted on the mounting base 311. When the low-temperature weld between the low-temperature welding spring 312 and the pressure-sensitive element 315 detaches, the blocking slider 316 can be inserted between them under the action of the return spring 317, thereby insulating the low-temperature welding spring 312 and the pressure-sensitive element 315. One end of the input component 313 and one end of the output component 314 form a connector 318, which is used for electrical connection with the connection terminal.

[0061] In addition, the plug-in module 30 may also be equipped with a remote signaling push block 330, and the base may be equipped with a remote signaling alarm component 252. When the blocking slider 316 slides, it can push the remote signaling push block 330 and trigger the remote signaling alarm component 252. The style and movement mode of the remote signaling push block 330 are not limited. For example, the remote signaling push block 330 is rotatably mounted on the mounting base 311, and a reset torsion spring is provided between the remote signaling push block 330 and the mounting base 311. When the blocking slider 316 slides, it can make the remote signaling push block 330 rotate, thereby triggering the remote signaling alarm component 252 through the trigger button in the plug-in cavity 210.

[0062] In order to allow the plug-in connector of the plug-in module 30 to be smoothly inserted into the plug-in interface 211, vertical insert strips 214 and slots 331 can be provided on the side wall of the plug-in cavity 210 and the corresponding side of the plug-in module 30. The insert strips 214 and slots 331 slide together, so that the plug-in module 30 can be smoothly inserted into the plug-in cavity 210.

[0063] To facilitate the installation and fixation of the plug-in module 30, the following scheme can also be adopted in this embodiment: a recess is provided on one side of the plug-in module 30, and a deformable spring 320 is provided in the recess. The deformable spring 320 is provided with a hook 321. The hook 321 can be wedge-shaped, with a beveled top and bottom surface. A blocking part is provided on the base 20, and the hook 321 can hook onto the blocking part. The deformable spring 320 can undergo elastic deformation. When the deformable spring 320 is pressed, it can deform, thereby causing the hook 321 to disengage from the blocking part, and thus the plug-in module 30 can be pulled out.

[0064] One end of the input and output terminals is a connecting spring. The connecting spring is folded in half to form a U-shaped or V-shaped connector. Preferably, the distance between the two parts of the connecting spring gradually increases from bottom to top. The connecting terminal is provided with a plug interface. The plug interface adopts a square connecting hole. The connecting spring is elastic. When the connecting spring is inserted into the plug interface, the connecting spring will be squeezed and deformed and can elastically deform, so that the connecting spring and the plug interface are in close contact.

[0065] The material of the connecting spring is not limited. Generally speaking, it needs to be made of a conductive metal material, such as gold, silver, copper, alloy materials, etc. In this embodiment, the connecting spring can be made of tin-plated copper alloy material.

[0066] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A housing applied to a pluggable surge protector, characterized in that, It includes a plug-in cavity for installing a plug-in module, the plug-in cavity having a plurality of plug-in interfaces, and the plug-in interfaces having annular first ribs around them. The first ribs protrude upward from the bottom surface of the plug-in cavity and are configured to increase the creepage distance inside and outside the plug-in interfaces.

2. The seat body of claim 1, wherein The insertion and extraction cavity is provided with opposing protrusions at both ends in the first direction, and the insertion and extraction cavity is interconnected in the second direction and is provided with side ribs at both ends.

3. The seat body of claim 1, wherein The base is provided with a wiring area, which has a screw hole and a movable cover plate for opening and closing the screw hole.

4. A seat body according to claim 3, characterised in that A second annular rib is provided around the screw hole, and the second rib protrudes upward from the bottom surface of the wiring area.

5. The seat body of claim 1, wherein One end of the base is provided with an input interface and the other end is provided with an output interface. Both the input interface and the output interface are provided with annular third ribs around their perimeter.

6. The seat body of claim 1, wherein The housing is provided with a support compartment located below the plug-in interface, and the support compartment is surrounded by several strip baffles.

7. A pluggable surge protector, characterized by It includes the base body as described in any one of claims 1-6 and a plurality of pluggable modules, wherein the pluggable modules are pluggable and detachable within the pluggable cavity.

8. The pluggable surge protector of claim 7, wherein, The plurality of pluggable modules include at least one first module and at least two second modules, wherein the at least two second modules are connected in parallel and are respectively connected in series with the first module.

9. The pluggable surge protector of claim 7, wherein, A deformable spring is provided on one side of the plug-in module, and the deformable spring is provided with a hook. A blocking part is provided on the base, and the hook can hook the blocking part.

10. The pluggable surge protector of claim 7, wherein, The plug-in module is provided with a connector, which is folded in half to form a U-shape or V-shape, and the input or output terminals of the base are provided with square plug interfaces.

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