Surge protection device module box and surge protection device

Abstract

The utility model provides a surge protection device module box. The surge protection device module box comprises a piezoresistor, a remote signaling transmission unit, an indicating piece, a first electric connecting piece and a second electric connecting piece, the first electric connecting piece and the second electric connecting piece are connected with the piezoresistor through low-temperature tin soldering, one side of the piezoresistor abuts against the remote signaling transmission unit and provides compression force for the remote signaling transmission unit, and the other side of the piezoresistor is connected with the indicating piece. When the temperature of the piezoresistor exceeds a low-temperature tin soldering fusing temperature threshold value, the first electric connecting piece, the second electric connecting piece and the piezoresistor are disconnected, the remote signaling transmission unit releases compression force to enable the piezoresistor to move, and the indicating piece receives extrusion force of the piezoresistor to generate displacement. According to the surge protection device module box provided by the utility model, the internal structure is exquisite and matched, the lightening and thinning of the surge protection device module box are realized, and the occupation of the installation space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection, in particular to a surge protector module box and a surge protector. Background Art

[0002] SPD, or surge protector, is also called lightning arrester. It is an electronic device that provides safety protection for various electronic equipment, instruments and meters, and communication lines. In a low-voltage power distribution system, when a spike current or voltage suddenly occurs in an electrical circuit or communication line due to external interference, the surge protector can conduct and shunt in a very short time, such as overvoltage caused by lightning, thereby avoiding damage to other equipment in the circuit caused by the surge. The SPD surge protector can discharge lightning current and protect electrical equipment from lightning strikes. The surge protector generally includes a surge protector base and a surge protector module box that can be plugged into the surge protector base. The existing surge protector module box is mostly 18mm thick, which occupies a large installation space and is not conducive to use in micro power supply circuits. Summary of the invention

[0003] In view of this, the utility model aims to provide a novel surge protector module box with a small thickness and reduced space occupation.

[0004] In order to achieve the purpose of the utility model, a surge protector module box is provided. The surge protector module box includes a varistor, a remote signal transmission unit, an indicator sheet, a first electrical connector and a second electrical connector. The first electrical connector and the second electrical connector are respectively connected to the varistor by low-temperature soldering. One side of the varistor abuts against the remote signal transmission unit and applies a compression force to the remote signal transmission unit. The indicator sheet is arranged on the other side of the varistor. When the temperature of the varistor exceeds the low-temperature soldering melting temperature threshold, the first electrical connector and the second electrical connector are disconnected from the varistor, the remote signal transmission unit releases the compression force, causing the varistor to move, and the indicator sheet receives the squeezing force of the varistor and is displaced.

[0005] Optionally, the surge protector module box further comprises a shell and a cover. The shell and the cover are mutually buckled to accommodate the varistor and the indicator sheet. Two limit bars are arranged in the shell. The varistor is arranged between the two limit bars. The varistor moves along the limit directions of the two limit bars.

[0006] Optionally, the varistor is movable in the housing. One end of the remote signal transmission unit is located in the housing and abuts against the varistor, and the other end passes through the housing and extends outward.

[0007] Optionally, the first electrical connector is an electrical input terminal, and the second electrical connector is an electrical output terminal. The first electrical connector and the second electrical connector are respectively fixedly arranged on the shell. The first electrical connector includes a first welding end and a first extension end. The first welding end is fixedly arranged in the shell and connected to the varistor by low-temperature soldering. The first extension end extends out of the shell. The second electrical connector includes a second welding end and a second extension end. The second welding end is fixedly arranged in the shell and connected to the varistor by low-temperature soldering. The second extension end extends out of the shell.

[0008] Optionally, the indicator sheet includes a clamping end and a displacement end. The clamping end is fixedly clamped in the housing. The displacement end of the indicator sheet is displaced when receiving the squeezing force of the varistor.

[0009] Optionally, a clamping block is further provided in the housing. The clamping end of the indicator sheet is fixedly clamped to the clamping block. A first convex strip is provided on the inner side surface of the housing. A second convex strip is provided on the inner side surface of the cover. The varistor is attached to the first convex strip and the second convex strip and moves in the housing and the cover along the extension direction of the first convex strip and the second convex strip.

[0010] Optionally, the inner side surface of the cover body is further provided with an indicator piece limiting plate, wherein the indicator piece limiting plate clamps the displacement end of the indicator piece in the housing and defines a displacement path of the displacement end of the indicator piece.

[0011] Optionally, a first electrode sheet and a second electrode sheet are provided on the varistor. The first electrode sheet is fixedly attached to the first surface of the varistor, and one end extends out of the varistor, and is connected to the first welding end of the first electrical connector by the low-temperature soldering. The second electrode sheet is fixedly attached to the second surface of the varistor, and one end extends out of the varistor, and is connected to the second welding end of the second electrical connector by the low-temperature soldering. The shell is provided with an indication window, and the indication window is arranged corresponding to the displacement end of the indication sheet. The displacement end is provided with an indication color. The displacement end is displaced when receiving the squeezing force of the varistor, so that the indication color on the displacement end is displayed in the indication window.

[0012] Optionally, the remote signal transmission unit includes a spring and a remote signal transmission member. The remote signal transmission member includes an upper transmission plate and a lower transmission tail rod. The transmission tail rod extends downward from the lower end surface of the transmission plate and passes through the housing to communicate with an external remote signal circuit. The upper end surface of the transmission plate abuts against the varistor, and the lower end surface of the transmission plate abuts against the housing. The spring is sleeved on the outside of the transmission tail rod, and one end abuts against the housing, and the other end abuts against the lower end surface of the transmission plate.

[0013] The utility model also provides a surge protector. The surge protector comprises a surge protector base and the aforementioned surge protector module box. A remote signaling circuit is provided in the surge protector base, and a micro switch is provided on the remote signaling circuit. The surge protector module box is pluggably connected to the surge protector base through the first electrical connector and the second electrical connector. The remote signaling transmission unit of the surge protector module box abuts against the micro switch.

[0014] The utility model provides a surge protector module box, which uses low-temperature soldering to fix the varistor with the first electrical connector and the second electrical connector. When the varistor heats up, the solder can be quickly melted, and the varistor moves to squeeze the indicator sheet for near-end indication. At the same time, the remote signal transmission unit loses the compression force of the varistor and bounces up to disconnect the connection with the remote signal circuit, realizing the function of remotely alarming the user. The surge protector module box provided by the utility model has a sophisticated internal structure, which realizes the lightness and thinness of the surge protector module box and reduces the installation space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model, rather than limiting the present utility model.

[0016] Figure 1 A schematic structural diagram of a surge protector provided in one embodiment of the utility model.

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of a remote signal circuit board and a micro switch in the surge protector of the embodiment.

[0018] Figure 3 A schematic structural diagram of a surge protector module box provided in one embodiment of the utility model.

[0019] Figure 4 for Figure 3 A schematic structural diagram of the cover body in the surge protector module box.

[0020] Figure 5 for Figure 3 A schematic structural diagram of the shell in the surge protector module box.

[0021] Figure 6 for Figure 3 A schematic diagram of the structure of the interior of the surge protector module box in one state.

[0022] Figure 7 for Figure 3 A schematic diagram of the structure of the interior of the surge protector module box in another state. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0024] See also Figure 1-2 , a surge protector 999 is provided in one embodiment of the utility model. The surge protector 999 includes a surge protector base 998 and a surge protector module box 997. A remote signal circuit board 9981 is provided in the surge protector base 998, and a micro switch 9982 is provided on the remote signal circuit board 9981, and the micro switch 9982 is electrically connected to an external power supply. The surge protector module box 997 can be plugged into the surge protector base 998 and abut against the micro switch 9982. The surge protector 999 discharges current to the ground when a lightning strike or a system overvoltage occurs to protect the electrical appliances in the circuit. The single-pole width of the surge protector module box 997 is 9mm±0.5mm, or the single-pole width is 12mm±0.5mm, and the volume is small, which can reduce the space occupied by the installation. In this embodiment, four surge protector module boxes 997 are connected together and plugged into the surge protector base 998.

[0025] See also Figure 3 , Figure 6 and Figure 7The surge protector module box 997 includes a cover 100, a shell 200, an indicator sheet 300, a varistor 400, a remote signal transmission unit 500, a first electrical connector 600 and a second electrical connector 700. The shell 200 and the cover 100 are buckled with each other to accommodate the indicator sheet 300 and the varistor 400. The indicator sheet 300, the varistor 400 and the remote signal transmission unit 500 are arranged in sequence from top to bottom. One end of the remote signal transmission unit 500 is located in the shell 200 and abuts the varistor 400, and the other end passes through the shell 200 and extends outward. One side of the varistor 400 abuts against the remote signal transmission unit 500 and gives the remote signal transmission unit 500 a compression force, and the indicator sheet 300 is arranged on the other side of the varistor 400. The first electrical connector 600 and the second electrical connector 700 are fixedly arranged on the shell 200 and are located below the varistor 400. The first electrical connector 600 is electrically connected to the varistor 400 through low-temperature soldering. The second electrical connector 700 is also electrically connected to the varistor 400 through low-temperature soldering. When a lightning strike or system overvoltage occurs, the temperature of the varistor 400 rises. When the temperature of the varistor 400 exceeds the low-temperature soldering melting temperature threshold, the first electrical connector 600 and the second electrical connector 700 are disconnected from the varistor 400, and the remote signal transmission unit 500 releases the compression force to move the varistor 400 upward. The indicator sheet 300 receives the squeezing force of the varistor 400 and moves to indicate the current state of the surge protector module box 997.

[0026] See also Figure 4-6The shell 200 is a rectangular parallelepiped structure with an opening, which is interlocked with the cover body 100. The inner side surface 201 of the shell 200 is provided with a snap-in block 210 and two limit strips 220. The varistor 400 is arranged between the two limit strips 220 and moves along the limit direction of the two limit strips 220. The limit direction of the two limit strips 220 is from bottom to top. The snap-in block 210 is arranged above one of the limit strips 220 and is used to fix the snap-in indicator sheet 300. The cross-section of the snap-in block 210 is an inverted triangle. The inner side surface 201 of the shell 200 is also provided with a first convex strip 230. The extension direction of the first convex strip 230 is from bottom to top. The inner side surface 101 of the cover body 100 is provided with a second convex strip 110. The extension direction of the second convex strip 110 is from bottom to top. The varistor 400 is attached to the first convex strip 230 and the second convex strip 100 and moves in the housing 200 and the cover 100 along the extension direction of the first convex strip 230 and the second convex strip 110. By providing the first convex strip 230 and the second convex strip 110, the contact area between the varistor 400 and the housing 200 and the cover 100 can be reduced, the friction force can be reduced, and the varistor 400 can move faster. An indication window 240 is provided on the upper side of the housing 200. The indication window 240 is provided corresponding to one end of the indication sheet 300, so that the user can observe the indication status of the indication sheet 300. An indication sheet limit plate 120 is provided on the upper end of the inner side surface 101 of the cover 100. The indication sheet limit plate 120 is used to limit the displacement path of the indication sheet 300.

[0027] See also Figure 6-7, the indicator sheet 300 includes an indicator sheet body 310, a clamping end 320 and a displacement end 330. The clamping end 320 and the displacement end 330 are the two ends of the indicator sheet body 310 respectively. The indicator sheet 300 is arranged above the varistor 400 in an inclined manner upward from the clamping end 320 to the displacement end 330. The clamping end 320 is fixedly clamped on the clamping block 210 in the housing 200. Specifically, the clamping end 320 of the indicator sheet 300 includes a first bending portion 321 and a second bending portion 322. The first bending portion 321 is clamped to the clamping block 210 having an inverted triangle cross section by bending; the second bending portion 322 is bent to match the upper edge of the varistor 400. The indicator sheet body 310 is in contact with the varistor 400. The displacement end 330 is arranged corresponding to the indication window 240. The displacement end 330 includes a third bending portion 331. The third bending portion 331 abuts against the upper side of the housing 200, and the bending end portion 332 is arranged corresponding to the indication window 240. The bending end portion 332 of the displacement end 330 of the indicator sheet 300 is sandwiched between the indicator sheet limiting plate 120 on the cover body 100 and the upper side of the housing 200. The displacement end 330 of the indicator sheet 300 is prevented from sinking by the limiting action of the indicator sheet limiting plate 120, and the moving path of the displacement end 330 when it is displaced by pressure is limited. When the temperature of the varistor 400 exceeds the low-temperature solder melting temperature threshold, the first connecting member 600 is disconnected from the varistor 400, the varistor 400 moves upward, the indicator sheet body 310 is squeezed by the varistor 400 and moves upward, and the displacement end 330 is displaced toward the clamping end 320 when receiving the squeezing force of the varistor 400. The displacement end 330 is provided with an indicating color. The displacement end 330 is displaced when receiving the squeezing force of the varistor 400, so that the indicator color on the displacement end 330 is displayed in the indicator window 240. The indicator sheet 300 is made of a flexible material, specifically Teflon or PEEK. In this embodiment, the current state of the surge protector module box 997 can be determined by setting color A at the proximal end and color B at the distal end of the displacement end 320 of the indicator sheet 300, and the displacement end 320 of the indicator sheet 300 is displaced, and the color change is observed in the indicator window 240. In other embodiments, the indication of the displacement end can also be achieved by other methods, such as shortening the length of the indicator sheet, the indicator sheet is not visible in the indicator window when the displacement end is displaced, and other methods in which the change of the displacement end of the indicator sheet can be observed in the indicator window.

[0028] See also Figure 6-7The varistor 400 is a flat cuboid structure with chamfers. A first electrode sheet 410 is provided on the first surface 401 of the varistor 400. A second electrode sheet 420 is provided on the second surface (not shown in the figure) of the varistor 400. Among them, the first surface 401 and the second surface of the varistor 400 are opposite surfaces. The first electrode sheet 410 is fixedly attached to the first surface 401 of the varistor 400, and one end extends out of the varistor 400, and is electrically connected to the first electrical connector 600 through low-temperature soldering. The second electrode sheet 420 is fixedly attached to the second surface of the varistor 400, and one end extends out of the varistor 400, and is electrically connected to the second electrical connector 700 through low-temperature soldering. The first surface 401 of the varistor 400 moves against the second convex strip 110 on the cover 100; the second surface of the varistor 400 moves against the first convex strip 230 on the shell 200.

[0029] See also Figure 2 , Figure 5 and Figure 6 The remote signal transmission unit 500 is arranged at the lower middle position of the housing 200, abutting against the external remote signal circuit, and is used to remotely feedback the change of the circuit signal to the user. In this embodiment, the external remote signal circuit is a circuit composed of the remote signal circuit board 9981 and the micro switch 9982 in the surge protector base 998. The remote signal transmission unit 500 is connected to the micro switch 9982 on the remote signal circuit board 9981 in the surge protector module box base 998. The remote signal transmission unit 500 includes a remote signal transmission member 510 and a spring 520. The spring 520 is arranged in the housing 200. The remote signal transmission member 510 includes an upper transmission plate 511 and a lower transmission tail rod 512. The upper end surface 5112 of the transmission plate 511 abuts against the varistor 400, and the lower end surface 5111 abuts against the housing 200. The transmission tail rod 512 extends downward from the lower end surface 5111 of the transmission plate 511 and passes through the housing 200 to abut against the micro switch 9982 on the remote signal circuit board 9981, and connects the remote signal circuit. Specifically, the transmission tail rod 512 abuts against the elastic pressure plate 9983 on the micro switch 9982. The spring 520 is sleeved on the outside of the transmission tail rod 512, and one end abuts against the housing 200, and the other end abuts against the lower end surface 5111 of the transmission plate 511. Since the width of the transmission plate 511 is large, the contact surface with the lower side of the varistor 400 is large. When the temperature of the varistor 400 exceeds the low-temperature solder melting temperature threshold, the spring 520 releases the compression force, and the remote signal transmission member 510 cooperates with the two limit bars 220 in the housing 200 to push the varistor 400 to move upward steadily, and the varistor 400 does not fall. The remote signal transmission member 510 moves upward, the transmission tail rod 512 is disconnected from the micro switch 9982, and a remote signal alarm signal is sent out. After receiving the alarm signal, the user can deal with the surge protector 999 in time.

[0030] See also Figure 6-7 , the first electrical connector 600 and the second electrical connector 700 are respectively arranged on both sides of the remote signal transmission unit 500. The first electrical connector 600 is an electrical input terminal, and the second electrical connector 700 is an electrical output terminal. The first electrical connector 600 is fixedly arranged on the housing 200. The first electrical connector 600 includes a first welding end 610 and a first extension end 620. There is a 90-degree bend between the first welding end 610 and the first extension end 620. The first welding end 610 is horizontally fixedly arranged in the housing 200. The first welding end 610 is provided with a first through hole 611. One end of the first electrode sheet 410 extending out of the varistor 400 is penetrated in the first through hole 611 and connected to the first welding end 610 by low-temperature soldering. The first extension end 620 vertically passes through the housing 200 and extends outward, and can be plugged into the surge protector module box base 998 or welded on the onboard PCB board to achieve electrical connection with an external power supply.

[0031] See also Figure 6-7 The second electrical connector 700 includes a second welding end 710 and a second extension end 720. The second welding end 710 and the second extension end 720 are bent at 90 degrees. The second welding end 710 is fixedly disposed in the housing 200 laterally. The second welding end 710 is provided with a second through hole 711. One end of the second electrode sheet 420 extending out of the varistor 400 is passed through the second through hole 711 and is connected to the second welding end 710 by low-temperature soldering. The second extension end 720 vertically passes through the housing 200 and extends outward, and can be plugged into the surge protector module box base 998 or welded on the onboard PCB board to achieve electrical connection with an external power supply.

[0032] See also Figure 2 and Figure 6 , a schematic diagram of the internal structure of the surge protector module box under normal working conditions, when the circuit current is stable, the first electrical connector 600 is electrically connected to the first electrode sheet 410, the second electrical connector 700 is electrically connected to the second electrode sheet 420, the varistor 400 abuts against the remote signal transmission member 510 of the remote signal transmission unit 500, the spring 520 in the remote signal transmission unit 500 is compressed and stored, and the transmission tail rod 512 abuts against the micro switch 9982 on the remote signal circuit board 9981. At this time, the displacement end 330 of the indicator sheet 300 shows a normal state in the indicator window 240.

[0033] See also Figure 2 and Figure 7, a schematic diagram of the internal structure of the surge protector module box in an abnormal state, when the temperature of the varistor 400 exceeds the low-temperature solder melting temperature threshold, the first electrical connector 600 is disconnected from the first electrode sheet 410 on the varistor 400; the second electrical connector 700 is disconnected from the second electrode sheet 420 on the varistor 400, the spring 520 in the remote signal transmission unit 500 releases the stored force, the remote signal transmission member 510 moves upward, and the varistor 400 is pushed upward by the remote signal transmission member 510, and the transmission tail rod 512 leaves the micro switch 9982, and a remote signal alarm signal is issued, and the user can remotely receive the alarm signal, the indicator sheet 300 is displaced by the upward squeezing force of the varistor 400, and the displacement end 330 of the indicator sheet 300 shows an abnormal state in the indicator window 240. The user can lock the surge protector module box 997 with abnormal circuit by observing the indicator window 240.

[0034] The utility model provides a surge protector module box, which uses low-temperature soldering to fix the varistor with the first electrical connector and the second electrical connector. When the varistor heats up, the solder can be quickly melted, and the varistor moves to squeeze the indicator sheet for near-end indication. At the same time, the remote signal transmission unit loses the compression force of the varistor and bounces up to disconnect the connection with the remote signal circuit, realizing the function of remotely alarming the user. The surge protector module box provided by the utility model has a sophisticated internal structure, which realizes the lightness and thinness of the surge protector module box and reduces the installation space occupied.

[0035] Although the description and illustration of the relevant embodiments of the present invention have been given, those skilled in the art should understand that the description and illustration of these embodiments do not constitute a limitation on the scope of the present invention, and the present invention can be transformed in various forms and details without exceeding the concept and scope of the present invention. Therefore, the scope of the present invention is not limited to the above embodiments, but should be determined by the claims and the equivalents of the claims.

Claims

1. A surge protector module box, characterized in that: The surge protector module box includes a varistor, a remote signal transmission unit, an indicator piece, a first electrical connector and a second electrical connector. The first electrical connector and the second electrical connector are respectively connected to the varistor by low-temperature soldering. One side of the varistor abuts against the remote signal transmission unit and applies a compression force to the remote signal transmission unit. The indicator piece is arranged on the other side of the varistor. When the temperature of the varistor exceeds the low-temperature soldering melting temperature threshold, the first electrical connector and the second electrical connector are disconnected from the varistor, the remote signal transmission unit releases the compression force to move the varistor, and the indicator piece receives the squeezing force of the varistor and is displaced.

2. A surge protector module box as claimed in claim 1, characterized in that: The surge protector module box also includes a shell and a cover, the shell and the cover are interlocked to accommodate the varistor and the indicator sheet, two limit bars are provided in the shell, the varistor is arranged between the two limit bars, and the varistor moves along the limit directions of the two limit bars.

3. A surge protector module box as claimed in claim 2, characterized in that: The varistor can move in the shell, one end of the remote signal transmission unit is located in the shell and abuts against the varistor, and the other end passes through the shell and extends outward.

4. A surge protector module box as claimed in claim 3, characterized in that: The first electrical connector is an electrical input terminal, and the second electrical connector is an electrical output terminal. The first electrical connector and the second electrical connector are respectively fixedly arranged on the shell. The first electrical connector includes a first welding end and a first extension end. The first welding end is fixedly arranged in the shell and connected to the varistor through low-temperature soldering. The first extension end passes through the shell and extends outward. The second electrical connector includes a second welding end and a second extension end. The second welding end is fixedly arranged in the shell and connected to the varistor through low-temperature soldering. The second extension end passes through the shell and extends outward.

5. A surge protector module box as claimed in claim 4, characterized in that: The indicator sheet includes a clamping end and a displacement end. The clamping end is fixedly clamped in the housing. The displacement end of the indicator sheet is displaced when receiving the squeezing force of the varistor.

6. A surge protector module box as claimed in claim 5, characterized in that: A snap-in block is also provided in the shell, and the snap-in end of the indicator sheet is fixedly snap-into the snap-in block. A first convex strip is provided on the inner side surface of the shell, and a second convex strip is provided on the inner side surface of the cover body. The varistor is attached to the first convex strip and the second convex strip and moves in the shell and the cover body along the extension direction of the first convex strip and the second convex strip.

7. A surge protector module box as claimed in claim 6, characterized in that: The inner side surface of the cover body is further provided with an indicator piece limiting plate, and the indicator piece limiting plate clamps the displacement end of the indicator piece in the shell and limits the displacement path of the displacement end of the indicator piece.

8. A surge protector module box as claimed in claim 7, characterized in that: The varistor is provided with a first electrode sheet and a second electrode sheet, the first electrode sheet is fixedly attached to the first surface of the varistor, and one end of the first electrode sheet extends out of the varistor, and is connected to the first welding end of the first electrical connector through the low-temperature soldering; the second electrode sheet is fixedly attached to the second surface of the varistor, and one end of the second electrode sheet extends out of the varistor, and is connected to the second welding end of the second electrical connector through the low-temperature soldering, the shell is provided with an indication window, the indication window is arranged corresponding to the displacement end of the indication sheet, the displacement end is provided with an indication color, the displacement end is displaced when receiving the squeezing force of the varistor, so that the indication color on the displacement end is displayed in the indication window.

9. A surge protector module box as claimed in claim 8, characterized in that: The remote signal transmission unit includes a spring and a remote signal transmission member, and the remote signal transmission member includes an upper transmission plate and a lower transmission tail rod, the transmission tail rod extends downward from the lower end surface of the transmission plate and passes through the shell, abutting against the external remote signal circuit, the upper end surface of the transmission plate abuts against the varistor, and the lower end surface of the transmission plate abuts against the shell, the spring is sleeved on the outside of the transmission tail rod, and one end abuts against the shell, and the other end abuts against the lower end surface of the transmission plate.

10. A surge protector, characterized in that: The surge protector includes a surge protector base and a surge protector module box as described in any one of claims 1 to 9, a remote signaling circuit is provided in the surge protector base, a micro switch is provided on the remote signaling circuit, the surge protector module box is pluggably connected to the surge protector base through the first electrical connector and the second electrical connector, and the remote signaling transmission unit of the surge protector module box abuts against the micro switch.

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