A graphite full-module tripping power surge protector

Abstract

The present application provides a graphite full-module tripping power surge protector, which relates to the technical field of surge protectors. The graphite full-module tripping power surge protector includes a housing, a graphite gap assembly and a tripping mechanism. The graphite gap assembly is arranged in the housing, and the graphite gap assembly includes a graphite electrode A and a graphite electrode B; the tripping mechanism includes a spring assembly, a trip seat, a micro switch and a remote signaling terminal; the spring assembly is arranged in the housing, and the spring assembly includes a tripping spring, the end of the tripping spring is soldered to the trip seat, and the trip seat is integrally arranged with the graphite electrode A; the micro switch is connected to the housing buckle, and the remote signaling terminal is electrically connected to the micro switch; when the fault current causes the graphite gap assembly to heat up, the tripping spring is separated from the trip seat and triggers the micro switch. The graphite full-module tripping power surge protector of the present application can trip in time when a fault current occurs, avoiding combustion accidents caused by overheating, and ensuring the normal operation of circuit equipment.

Description

Technical Field

[0001] The present application relates to the technical field of surge protectors, and in particular to a graphite full-module tripping power supply surge protector. Background Art

[0002] A surge protector (SPD) is a device that provides safety protection for power grids, electrical equipment, and electronic circuits. When lightning current is transmitted through power lines or coupled into the power supply system, generating a lightning overvoltage, the SPD activates instantly, discharging the lightning current to the ground and clamping the overvoltage within the tolerance range of downstream equipment, thereby protecting the equipment from damage.

[0003] Power surge protectors are categorized as switching, voltage-limiting, and short-circuit types. Existing switching surge protectors lack thermal stability requirements and tripping devices in domestic and international standards. In practice, they rely on their current-breaking capacity, combined with a series backup protector in the front end, to address short-circuit burnouts caused by power grid anomalies. However, in scenarios with insufficient power supply capacity, if the surge protector fails due to excessive lightning current or neglected inspections, the short-circuit current is insufficient to trigger the backup protector, creating a protection blind spot and potentially causing the surge protector to burn out.

[0004] Furthermore, some existing surge protectors are equipped with a tripping mechanism. However, this mechanism has a long heat transfer path and a slow response speed, making it insufficient to quickly cut off the fault current, which can still lead to fires. Furthermore, existing multi-layer graphite gap arresters, especially those with Iimp: 12.5kA and above, lack a thermal tripping mechanism. This is primarily due to the difficulty in achieving a tripping point that meets both high-energy impact requirements and high-current rapid tripping requirements. Therefore, existing surge protectors need improvement. Summary of the Invention

[0005] In order to enable the power surge protector to trip in time when a fault current occurs, avoid overheating and combustion accidents, and ensure the normal operation of circuit equipment, the present application provides a graphite full-module tripping power surge protector.

[0006] This application provides a graphite full-module trip power surge protector, which adopts the following technical solution:

[0007] A graphite full-module tripping power surge protector, comprising:

[0008] shell;

[0009] A graphite gap assembly, the graphite gap assembly is disposed in the housing, and the graphite gap assembly includes a graphite electrode A and a graphite electrode B;

[0010] The tripping mechanism includes a spring element assembly, a tripping seat, a micro switch and a remote signaling terminal; the spring element assembly is arranged in the housing, the spring element assembly includes a tripping spring element, the end of the tripping spring element is soldered to the tripping seat, and the tripping seat is integrally arranged with the graphite electrode A; the micro switch is connected to the housing buckle position, and the remote signaling terminal is electrically connected to the micro switch; when the fault current causes the graphite gap assembly to heat up, the tripping spring element disengages from the tripping seat and triggers the micro switch.

[0011] By adopting the above technical solution, when the fault current passes through the surge protector, the graphite gap assembly heats up, and the trip seat is integrally arranged with the graphite electrode A, which is conducive to transferring heat to the trip seat. Since the trip seat is located at the end of the graphite gap assembly, the heat transfer path is shorter and the heat is more concentrated, which is conducive to the melting of the solder, so that the trip spring responds in time and separates from the trip seat. The trip spring moves away from the trip seat under the action of elasticity. After the trip spring is separated, it contacts the micro switch, thereby triggering the micro switch. The micro switch transmits the trip information to the remote signal terminal, and then sends an alarm information to the outside, effectively improving the speed at which the operation and maintenance personnel perceive the trip situation and improving the timeliness of the maintenance of the surge protector.

[0012] Optionally, the end of the tripping spring is connected to an indicator piece, and the indicator piece is painted with a color; the shell is provided with an observation hole, and a transparent window is connected to the observation hole; when the tripping mechanism is tripped, the tripping spring drives the indicator piece to approach the transparent window.

[0013] By adopting this technical solution, when the trip mechanism trips, the trip spring pulls the indicator plate toward the transparent window, allowing maintenance personnel to visually detect the trip condition through the transparent window, improving their ability to identify the trip status of the surge protector. The indicator plate is colored, further enhancing the visual cue and making the trip status more noticeable.

[0014] Optionally, the graphite gap assembly includes graphite sheets and graphite gap spacers; the graphite electrode A and the graphite electrode B are spaced apart, and a plurality of graphite sheets are stacked, with the plurality of graphite sheets being located between the graphite electrode A and the graphite electrode B; the graphite gap spacers are located between adjacent graphite sheets, and the graphite gap spacers separate adjacent graphite sheets; the trip seat is integrally connected to the center position of the graphite electrode A, and the trip seat is located in the stacking direction of the graphite sheets.

[0015] By adopting this technical solution, multiple graphite sheets are stacked between graphite electrodes A and B, separated by graphite gap spacers to ensure a reasonable gap distribution between the sheets. The trip block is integrally connected to the center of graphite electrode A and located in the direction of stacking the graphite sheets. This optimizes the layout of the trip block and concentrates heat at the center of the graphite sheets, facilitating rapid heat transfer to the trip block. This reduces the heat transfer path, shortens thermal response time, and improves trip response speed.

[0016] Optionally, the graphite gap assembly further includes a graphite PCB board, the graphite PCB board is connected between the graphite electrode A and the graphite electrode B, and the graphite PCB board is electrically connected to the graphite sheet.

[0017] By adopting the above technical solution, graphite electrodes A and B are symmetrically provided with fixing grooves, and the graphite PCB board is clamped into the fixing grooves of graphite electrodes A and graphite electrodes B, thereby fixing the position of the graphite PCB board. The graphite PCB board and the graphite sheet are electrically connected. When a surge occurs, the graphite PCB board can facilitate the peak current to penetrate the graphite gap, thereby accelerating the discharge speed and response speed, and reducing the risk of circuit equipment damage caused by breakdown delay.

[0018] Optionally, the graphite gap assembly further includes a graphite fixing block, the graphite fixing block includes a graphite fixing block A and a graphite fixing block B, and the graphite fixing block A and the graphite fixing block B are both connected between the graphite electrode A and the graphite electrode B;

[0019] The graphite fixing block A and the graphite fixing block B enclose the graphite gap spacer and the graphite sheet, the graphite gap spacer is connected to the graphite fixing block A and the graphite fixing block B respectively, and the graphite fixing block B separates the graphite PCB board and the graphite sheet;

[0020] Two graphite fixing blocks B are provided, and the two graphite fixing blocks B enclose and form an introduction groove. The graphite PCB board is provided with a pin header, and the pin header of the graphite PCB board passes through the introduction groove and contacts the graphite sheet.

[0021] By employing this technical solution, graphite fixing block B effectively reduces heat transfer from the graphite sheet to the graphite PCB, minimizing performance degradation or damage to the PCB due to high temperatures, thereby improving overall stability and reliability. Graphite fixing blocks A and B enclose the graphite spacer and the graphite sheet, facilitating installation and securing the two. To achieve electrical connection between the graphite PCB and the graphite sheet, the pin headers on the graphite PCB are first brought into contact with the graphite sheet, followed by the two graphite fixing blocks B enclosing each other, facilitating installation.

[0022] Optionally, three graphite gap assemblies are provided, a gas discharge tube is provided in the housing, and four tripping mechanisms are provided, wherein three of the tripping mechanisms correspond to and are connected to the three graphite gap assemblies one by one, and another tripping mechanism corresponds to and is connected to the gas discharge tube;

[0023] Four first wiring assemblies and one second wiring assembly are provided in the housing. The four first wiring assemblies correspond to and are connected to the four tripping mechanisms one by one. The three graphite gap assemblies are connected in series with the gas discharge tube, and the gas discharge tube is connected to the second wiring assembly.

[0024] By adopting the above technical solution, three first wiring assemblies are connected to the three phase lines of the external circuit, and another first wiring assembly is connected to the external neutral line. The three graphite gap assemblies and the gas discharge tube can protect against surges between the phase line, the neutral line and the ground line.

[0025] Optionally, the graphite gap assembly or the gas discharge tube is correspondingly provided with a partition assembly, the partition assembly comprising a partition plate, an elastic member and a guide block; an inner shell is provided in the outer shell, the partition plate is slidably provided on the inner shell, the elastic member is respectively connected to the inner shell and the partition plate, the guide block is connected to the partition plate, and the guide block is provided with a guide slope;

[0026] When the tripping spring piece is released from the tripping seat, the elastic member drives the partition plate to slide between the tripping spring piece and the tripping seat, and the partition plate isolates the tripping spring piece from the tripping seat;

[0027] When the tripping elastic piece moves toward the direction approaching the tripping seat, the tripping elastic piece pushes the guide block to move via the guide inclined surface, so that the guide block drives the partition plate to move toward the direction away from the tripping seat.

[0028] By adopting this technical solution, when the tripping spring release and the tripping seat are released, the elastic member drives the partition plate to slide between the tripping spring release and the tripping seat, effectively isolating the tripping spring release from the two. This design can reduce arcing and wire drawing after tripping, thereby improving the safety of the surge protector. When the tripping spring release and the tripping seat need to be soldered together, the tripping spring release is pressed down, which pushes the guide block, which in turn moves the partition plate away from the tripping seat, leaving space for operation. This allows the tripping spring release and the tripping seat to make contact, facilitating subsequent soldering operations.

[0029] Optionally, the partition plates, the elastic members and the guide blocks are all arranged in plurality in opposite directions, and the top sides of the partition plates are staggered;

[0030] When the trip spring is released from the trip seat, the elastic member drives the two opposite partition plates to move toward each other, so that the top sides of the two opposite partition plates cut the wire between the trip spring and the trip seat.

[0031] By adopting the above technical solution, when the tripping spring piece and the tripping seat are tripped, the oppositely arranged partition plates move toward each other under the push of the elastic member. Since the top sides of the partition plates are staggered, the wire drawing between the tripping spring piece and the tripping seat can be effectively cut off, thereby reducing the impact of the wire drawing on the safety after tripping and improving the overall reliability of the surge protector.

[0032] Optionally, a narrowing groove is formed at the end of the trip spring close to the trip seat, the partition plate corresponds to the narrowing groove of the trip spring, and the guide block corresponds to the end of the trip spring away from the narrowing groove.

[0033] By adopting this technical solution, the trip spring is narrowed at the end near the trip seat, allowing the top side of the partition plate to be wider, increasing the area of the partition plate's top side and improving the partitioning effect of the partition plate. Furthermore, the top side of the partition plate can be closer to the trip seat, allowing the partition plate to cover the trip seat more quickly when the trip spring is released.

[0034] Optionally, the guide block or the partition plate is provided with a through hole. When the trip spring contacts the trip seat, a limiting rod is passed through the through hole, and the trip spring abuts against the limiting rod, and the limiting rod temporarily limits the welding position of the trip spring.

[0035] By adopting the above technical solution, before the trip spring is soldered to the trip seat, a limit rod is inserted into the through hole of the guide block. This temporarily secures the trip spring's welding position, reducing displacement during the soldering process and improving the stability of the soldered connection. Furthermore, because the limit rod temporarily secures the trip spring's welding position, maintenance personnel do not need to continuously press the release, improving operational convenience. After waiting for the soldering between the trip spring and the trip seat to cool, the connection between the two becomes more stable. At this point, the limit rod can be withdrawn, facilitating the subsequent normal tripping of the trip mechanism.

[0036] In summary, this application has at least one of the following beneficial effects:

[0037] 1. The trip seat and graphite electrode A are integrated, and the trip seat is located directly above the graphite sheet, which facilitates heat transfer to the trip seat and shortens the heat transfer path. The trip seat corresponds to the center of the graphite sheet, so heat is more concentrated on the trip seat, improving the thermal response speed and enabling the tripping action to be completed in a shorter time.

[0038] 2. When the tripping spring is released from the tripping seat, the tripping spring triggers the microswitch, which then transmits the tripping signal to the remote signal terminal, allowing operation and maintenance personnel to quickly and accurately detect the tripping status and take maintenance measures in a timely manner, thereby improving equipment maintenance efficiency and the overall safety of the system;

[0039] 3. After the trip spring and the trip seat are tripped, the elastic member drives the partition plate to move toward each other, and the partition plate cuts the wire between the trip spring and the trip seat, reducing safety hazards and further enhancing the safety performance of the surge protector. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the overall structure of the surge protector in Example 1 of the present application;

[0041] Figure 2 This is a schematic structural diagram of the surge protector of Example 1 of the present application after the outer shell is removed;

[0042] Figure 3 This is a schematic structural diagram of the surge protector of Example 1 of the present application without the outer shell, inner shell A, and inner shell B;

[0043] Figure 4 This is a schematic diagram of the exploded structure of the graphite gap assembly in Example 1 of the present application;

[0044] Figure 5 1 is a schematic front view of the structure of the surge protector of Example 1 of the present application with the outer shell removed;

[0045] Figure 6 This is a schematic structural diagram of the surge protector of Example 1 of the present application, with the outer shell removed, from another perspective;

[0046] Figure 7 This is a schematic structural diagram of the surge protector of Example 2 of the present application after removing the outer shell;

[0047] Figure 8 This is a schematic structural diagram of the surge protector of Example 3 of the present application with the outer shell removed;

[0048] Figure 9 This is a schematic structural diagram of the surge protector of Example 4 of the present application after the outer shell is removed;

[0049] Figure 10 This is a schematic structural diagram of the tripping mechanism, graphite gap assembly, and partition assembly of Example 4 of the present application;

[0050] Figure 11 This is a schematic diagram of the partial structure of the partition assembly on the inner shell A in Example 4 of the present application;

[0051] Figure 12 This is a schematic diagram of the structure of Example 5 of the present application in which the trip spring is located between two partition plates;

[0052] Figure 13 This is a schematic diagram of the partial structure of the partition assembly located on the inner shell A in Example 5 of the present application;

[0053] Figure 14 This is a schematic structural diagram of the surge protector of Example 6 of the present application after removing the outer shell;

[0054] Figure 15 It is a structural schematic diagram of the tripping mechanism, graphite gap assembly and partition assembly of Example 6 of the present application.

[0055] Explanation of reference numerals: 1. outer shell; 11. upper cover; 12. base; 2. graphite gap assembly; 21. inner shell; 211. inner shell A; 212. inner shell B; 22. graphite electrode A; 23. graphite fixing block; 231. graphite fixing block A; 232. graphite fixing block B; 24. graphite sheet; 25. graphite gap spacer; 26. graphite PCB board; 27. graphite electrode B; 28. insulating sheet; 3. tripping mechanism; 31. spring assembly; 31 1. Shrapnel bracket; 312. Tripping shrapnel; 3121. Narrowing slot; 32. Tripping seat; 33. Micro switch; 34. Indicator plate; 35. Transparent window; 36. Remote signal terminal; 37. Connecting strip; 4. First wiring assembly; 41. Wire pressing frame; 42. Wire pressing frame screw; 43. Wire pressing frame bracket; 5. Second wiring assembly; 6. Gas discharge tube; 7. Partition assembly; 71. Partition plate; 72. Elastic member; 73. Guide block; 74. Limit rod. DETAILED DESCRIPTION

[0056] The following combination Figures 1 to 15 This application is described in further detail.

[0057] Example 1:

[0058] Embodiment 1 of the present application provides a graphite full-module tripping power surge protector.

[0059] refer to Figure 1 and Figure 2 The graphite full-module trip power surge protector includes a housing 1, a graphite gap assembly 2, a trip mechanism 3, and a first wiring assembly 4. The housing 1 includes a top cover 11 and a base 12, which are fixedly connected to each other to protect the internal components of the housing 1. The graphite gap assembly 2 is located within the housing 1, and the trip mechanism 3 is connected to the first wiring assembly 4 and the graphite gap assembly 2, respectively. When a fault current passes through the graphite gap assembly 2, the graphite gap assembly 2 generates heat, causing the trip mechanism 3 to trip, thereby severing the electrical connection between the trip mechanism 3 and the graphite gap assembly 2.

[0060] refer to Figure 3 and Figure 4The graphite gap assembly 2 includes an inner shell 21, graphite electrodes A22 and B27, a graphite fixing block 23, graphite sheets 24, graphite gap spacers 25, and a graphite PCB 26. In one set of graphite gap assemblies 2, graphite electrodes A22 and B27 are spaced apart, and multiple graphite sheets 24 are stacked and spaced apart, with multiple graphite sheets 24 positioned between graphite electrodes A22 and B27. The graphite gap spacers 25 are annular and positioned between adjacent graphite sheets 24. The graphite gap spacers 25 abut against adjacent graphite sheets 24, separating adjacent graphite sheets 24 to create a gap between them. In this embodiment, the graphite gap spacers 25 are made of polytetrafluoroethylene to improve their weather resistance.

[0061] refer to Figure 3 and Figure 4 The graphite fixing block 23 includes a graphite fixing block A231 and a graphite fixing block B232. For each graphite gap assembly 2, two graphite fixing blocks B232 are provided. Each of the two graphite fixing blocks A231 and B232 is located between the graphite electrode A22 and the graphite electrode B27. The top and bottom ends of the graphite fixing block A231 are connected to the graphite electrode A22 and the graphite electrode B27, respectively, via screws. The two graphite fixing blocks B232 and the one graphite fixing block A231 enclose the graphite sheet 24 and the graphite gap spacer 25, facilitating their installation between the graphite fixing blocks A231 and B232. The inner walls of the graphite fixing block A231 and the graphite fixing block B232 are both provided with grooves, and the graphite gap spacer 25 is clamped in the grooves of the graphite fixing block A231 and the graphite fixing block B232, thereby fixing the position of the graphite gap spacer 25.

[0062] refer to Figure 1 and Figure 3 In this embodiment, the horizontal space inside the housing 1 is limited. However, multiple graphite sheets 24 are stacked vertically at intervals, allowing as many graphite sheets 24 as possible to be stacked inside the housing 1. When a fault current passes through the surge protector, more graphite sheets 24 generate more heat, facilitating tripping of the trip mechanism 3 and improving trip sensitivity.

[0063] refer to Figure 3 and Figure 4Graphite electrodes A and B are symmetrically provided with fixing grooves. The graphite PCB is snapped into these grooves, securing the PCB in place. Pin headers are connected to the graphite PCB 26. A guide slot is formed between two graphite fixing blocks B232. The pin headers on the graphite PCB 26 pass through the guide slot to electrically connect to the graphite sheet 24. The two graphite fixing blocks B232 enclose each other, facilitating the installation and securing of the graphite sheet 24 and the graphite gap spacer 25 while also allowing the pin headers on the graphite PCB 26 to pass through the guide slot. When a fault current passes through the graphite gap assembly 2, the graphite PCB 26 facilitates the fault current's sequential breakdown through the gaps in the graphite sheet 24.

[0064] refer to Figure 2 and Figure 4 The graphite PCB 26 is located outside the graphite fixing block 23. The graphite fixing block B232 separates the graphite PCB 26 from the graphite sheet 24, reducing the impact of heat from the graphite sheet 24 on the graphite PCB 26 and minimizing performance degradation or damage to the graphite PCB 26 due to overheating. The inner housing 21 comprises an inner housing A211 and an inner housing B212. Inner housing A211 covers the outside of the graphite PCB 26 and graphite electrode A22, providing protection for the graphite PCB 26 and graphite sheet 24.

[0065] refer to Figure 4 The graphite gap assembly 2 also includes an insulating sheet 28, which is fixedly connected to the bottom side of the graphite electrode B27. The insulating sheet 28 separates the graphite electrode B27 from the base 12. The insulating sheet 28 reduces the heat transfer from the graphite sheet 24 to the base 12, thereby reducing the damage to the base 12 caused by the heat generated by the graphite sheet 24 during testing or fault current.

[0066] refer to Figure 2 and Figure 3 The trip mechanism 3 includes a trip seat 32, which is integrally formed with the graphite electrode A22. This facilitates heat transfer from the graphite sheet 24 to the trip seat 32 via the graphite electrode A22. The trip seat 32 passes through the inner shell A211 and corresponds to the center of the graphite sheet 24. Heat is more concentrated at the center of the graphite sheet 24, which facilitates heat transfer from the graphite sheet 24 to the trip seat 32.

[0067] refer to Figure 2 and Figure 3 The first wiring assembly 4 includes a clamping frame 41, a clamping frame screw 42, and a clamping frame bracket 43. The clamping frame 41 is fixed to the base 12, and the clamping frame screw 42 passes through the clamping frame bracket 43 and is threadedly connected to the clamping frame 41. The external wire is inserted into the clamping frame 41 and the clamping frame screw 42 is tightened to achieve electrical connection between the external circuit and the first wiring assembly 4.

[0068] refer to Figure 2 and Figure 5 The tripping mechanism 3 includes a spring assembly 31, a micro switch 33, and a remote signal terminal 36. The spring assembly 31 includes a spring bracket 311 and a trip spring 312. The spring bracket 311 is fixedly connected to the wire pressing frame bracket 43. One end of the trip spring 312 is fixedly connected to the spring bracket 311, and the other end of the trip spring 312 is tilted in a naturally straight state.

[0069] refer to Figure 2 and Figure 5 The end of the trip spring 312 is pressed to bring it into contact with the trip seat 32. The trip spring 312 accumulates elastic potential energy, and the trip spring 312 is then soldered to the trip seat 32. When a fault current passes through the graphite gap assembly 2, the heat generated causes the trip spring 312 to desolder from the trip seat 32. The trip spring 312 elastically moves upward, causing it to release from the trip seat 32 and sever the electrical connection between them. In this embodiment, the trip spring 312 has a long travel, which improves the safety of the two connections after they release.

[0070] refer to Figure 2 and Figure 5 The microswitch 33 is snap-fitted to the upper cover 11, facilitating its connection and disconnection. The microswitch 33 corresponds to the trip spring 312. The remote signaling terminal 36 is fixedly connected to the upper cover 11 and electrically connected to the microswitch 33. When the trip spring 312 is released from the tripping seat 32, it rebounds and abuts against the spring of the microswitch 33, triggering the microswitch 33. The microswitch 33 then receives the tripping information from the trip mechanism 3 and transmits it to the remote signaling terminal 36, enabling the remote alarm to be sent.

[0071] refer to Figure 2 and Figure 5 The trip mechanism 3 also includes an indicator plate 34 and a transparent window 35. The indicator plate 34 is fixedly connected to the end of the trip spring 312. The indicator plate 34 is painted red in this embodiment. The upper cover 11 has an observation hole, and the transparent window 35 is fixedly connected to the observation hole of the upper cover 11. When the trip spring 312 is released from the trip seat 32, the trip spring 312 drives the indicator plate 34 toward the transparent window 35. The indicator plate 34 can be seen through the transparent window 35 from the outside of the upper cover 11, making it easy for maintenance personnel to observe the tripping status of the trip mechanism 3 from the outside.

[0072] refer to Figure 2 and Figure 6A gas discharge tube 6 is disposed within the outer shell 1, and the inner shell B212 is disposed outside the gas discharge tube 6. In this embodiment, four first wiring assemblies 4 and four tripping mechanisms 3 are provided, each corresponding to the other. Three graphite gap assemblies 2 are provided, three of which correspond to each other, and another first wiring assembly 4 corresponds to the gas discharge tube 6. The three first wiring assemblies 4 corresponding to the graphite gap assemblies 2 are electrically connected to the phase lines L1, L2, and L3 of the external circuit, respectively, while the other first wiring assembly 4 is electrically connected to the neutral line of the external circuit.

[0073] refer to Figure 3 and Figure 6 For the tripping mechanism 3 corresponding to the gas discharge tube 6, the tripping mechanism 3 is respectively connected to the gas discharge tube 6 and the first wiring assembly 4 connected to the N line. The tripping mechanism 3 is connected to a connecting bar 37, and the other end of the connecting bar 37 is fixedly connected to the graphite electrodes B27 of the three graphite gap assemblies 2.

[0074] refer to Figure 3 and Figure 6 A second wiring assembly 5 is installed in the base 12. The structure of the second wiring assembly 5 is the same as that of the first wiring assembly 4. The gas discharge tube 6 is connected to the second wiring assembly 5, and the second wiring assembly 5 is grounded. When the fault current passes through the gas discharge tube 6, the gas discharge tube 6 heats up and causes the tripping mechanism 3 to trip. Through the graphite gap assembly 2 and the gas discharge tube 6, surges between the phase line, neutral line and ground line can be protected. For the present application, three graphite gap assemblies 2 and one gas discharge tube 6 are provided, which is the "3+1" mode of the present application. When the fault current passes through the surge protector, the four tripping mechanisms 3 are all tripped, that is, full module tripping.

[0075] The working principle of the graphite full-module trip power surge protector in Example 1 of the present application is as follows: when a fault current passes through the graphite gap assembly 2, the heat generated by the graphite sheet 24 is transferred to the trip seat 32, causing the trip seat 32 and the trip spring 312 to trip. The trip spring 312 rebounds and contacts the micro switch 33, which transmits the trip information to the remote signal terminal 36. The indicator piece 34 moves with the trip spring 312, and the trip spring 312 causes the indicator piece 34 to approach the transparent window 35, so that the tripping status of the trip mechanism 3 can be observed from outside the housing 1.

[0076] Example 2:

[0077] Example 2 of the present application provides a graphite full-module trip power surge protector. The difference between Example 2 of the present application and Example 1 is that:

[0078] refer to Figure 7Four tripping mechanisms 3 are provided, and four graphite gap assemblies 2 are provided. The four tripping mechanisms 3 correspond one to one with the four graphite gap assemblies 2. The graphite electrodes B27 of the four graphite gap assemblies 2 are connected and then connected to the second wiring assembly 5. For the present application, the provision of four graphite gap assemblies 2 without the gas discharge tube 6 is the "4+0" mode of the present application.

[0079] Example 3:

[0080] Example 3 of the present application provides a graphite full-module trip power surge protector. The difference between Example 3 of the present application and Example 1 is that:

[0081] refer to Figure 8 , a tripping mechanism 3 and a graphite gap assembly 2 are each provided in a housing 1, a first wiring assembly 4 is connected to the tripping mechanism 3, and a second wiring assembly 5 is connected to the graphite electrode B27 of the graphite gap assembly 2. This allows the formed surge protector to be freely combined, and multiple surge protectors correspond to the number of wires in the circuit, thereby improving the flexibility and applicability of the surge protector. For the present application, a graphite gap assembly 2 and a tripping mechanism 3 are provided in a housing 1, and a gas discharge tube 6 is not provided, which is the "1+0" mode of the present application.

[0082] Example 4:

[0083] Example 4 of the present application provides a graphite full-module trip power surge protector. The difference between Example 4 of the present application and Example 1 is that:

[0084] refer to Figure 9 and Figure 10 , partition assemblies 7 are provided on both the inner shell A211 and the inner shell B212. There are four partition assemblies 7. The four partition assemblies 7 correspond one-to-one to the four tripping mechanisms 3, and the four partition assemblies 7 correspond to the three graphite gap assemblies 2 and one gas discharge tube 6 respectively. The partition assembly 7 includes a partition plate 71, an elastic member 72 and a guide block 73.

[0085] refer to Figure 10 and Figure 11 In this embodiment, the partition assembly 7 on the inner shell A211 is used as an example for explanation. The inner shell A211 is provided with a plurality of chutes. The partition plate 71 is slidably connected to the inner shell A211 via the chutes. The guide block 73 is slidably connected to the inner shell A211 via the chutes. The elastic member 72 is specifically a spring. The elastic member 72 is located in the chutes. There are multiple elastic members 72. One elastic member 72 is respectively connected to the inner shell A211 and the partition plate 71, and another elastic member 72 is respectively connected to the inner shell A211 and the guide block 73. The guide block 73 is fixedly connected to the partition plate 71. The guide block 73 is provided with a guide slope. The release spring 312 can abut against the guide slope of the guide block 73.

[0086] refer to Figure 10 and Figure 11 When the trip spring piece 312 is pressed down, the trip spring piece 312 abuts against the guide inclined surface of the guide block 73, causing the guide block 73 to move away from the trip seat 32, thereby driving the partition plate 71 to move away from the trip seat 32, leaving operating space for the trip spring piece 312 to contact the trip seat 32, thereby facilitating the subsequent soldering operation of the trip spring piece 312 and the trip seat 32.

[0087] refer to Figure 10 and Figure 11 When the trip spring 312 is released from the trip seat 32, it rebounds upward, and the elastic member 72 drives the partition plate 71 toward the trip seat 32 until the top side of the partition plate 71 moves between the trip spring 312 and the trip seat 32. The partition plate 71 isolates the trip spring 312 from the trip seat 32, thereby reducing arcing between the trip spring 312 and the trip seat 32. Furthermore, when the trip spring 312 is released from the trip seat 32, molten solder causes wire drawing between the trip spring 312 and the trip seat 32. Moving the partition plate 71 between the trip spring 312 and the trip seat 32 reduces wire drawing, thereby reducing the possibility of accidental electrical conduction between the trip spring 312 and the trip seat 32.

[0088] refer to Figure 10 and Figure 11 In this embodiment, the width direction extends from the partition plate 71 to the trip seat 32. Narrowing slots 3121 are defined on both sides of the width direction at the end of the trip spring 312 near the trip seat 32. This narrows the width of the end of the trip spring 312 near the trip seat 32. This allows the top side of the partition plate 71 to be designed wider in the width direction, increasing the area of the top side of the partition plate 71 and improving the isolation effect. Furthermore, by bringing the top side of the partition plate 71 closer to the trip seat 32, after the trip spring 312 rebounds, the top side of the partition plate 71 moves a short distance to cover the top of the trip seat 32, allowing the partition plate 71 to more quickly isolate the trip spring 312 from the trip seat 32.

[0089] Example 5:

[0090] Example 5 of the present application provides a graphite full-module trip power surge protector. The difference between Example 5 of the present application and Example 4 is that:

[0091] refer to Figure 12 and Figure 13In this embodiment, two partition plates 71 and two guide blocks 73 are provided in opposing relation to each other for each partition assembly 7. The partition plates 71 and guide blocks 73 correspond to each other. When the trip spring 312 is pressed downward, the trip spring 312, via the guide slope, moves the two guide blocks 73 away from each other, thereby moving the two partition plates 71 away from each other. This facilitates contact between the trip spring 312 and the trip seat 32, thus facilitating subsequent soldering operations.

[0092] refer to Figure 12 and Figure 13 When the tripping spring 312 is released from the tripping seat 32, the tripping spring 312 rebounds upward, and the elastic member 72 drives the two partition plates 71 closer to each other. In this embodiment, the two guide blocks 73 arranged opposite to each other are staggered in the horizontal direction to reduce interference between the two guide blocks 73 when they are close to each other. In this embodiment, the top sides of the two partition plates 71 arranged opposite to each other are staggered in the height direction. When the two partition plates 71 are close to each other, the top sides of the two partition plates 71 exert a shear force on the wire drawing, which can cause the top sides of the two partition plates 71 to cut the wire drawing, further reducing the occurrence of wire drawing between the tripping spring 312 and the tripping seat 32. In addition, the two partition plates 71 shield the top side of the tripping seat 32, which can reduce the occurrence of arcing between the tripping spring 312 and the tripping seat 32.

[0093] Example 6:

[0094] Example 6 of the present application provides a graphite full-module trip power surge protector. The difference between Example 6 of the present application and Example 5 is that:

[0095] refer to Figure 14 and Figure 15 In this embodiment, the partition assembly 7 further includes a limiting rod 74, and the guide block 73 has a through hole. When the trip spring 312 is pressed down to contact the trip spring 312 with the trip seat 32, the limiting rod 74 is passed through the through hole of the guide block 73 of the four partition assemblies 7. The trip spring 312 abuts the limiting rod 74, and the limiting rod 74 temporarily limits the welding position of the trip spring 312. At this time, the limiting rod 74 serves as an auxiliary welding jig for the trip spring 312, facilitating the soldering operation of the trip spring 312 and the trip seat 32. After the trip spring 312 and the trip seat 32 are soldered together, the limiting rod 74 is withdrawn, thereby facilitating the normal tripping of the trip mechanism 3. In other implementations of this embodiment, a through hole for the limiting rod 74 to pass through can also be provided in the partition plate 71.

[0096] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A graphite full-module trip power surge protector, characterized in that: include: Housing (1); A graphite gap assembly (2), the graphite gap assembly (2) being arranged in the housing (1), the graphite gap assembly (2) comprising a graphite electrode A (22) and a graphite electrode B (27); A tripping mechanism (3), the tripping mechanism (3) comprising a spring element assembly (31), a tripping seat (32), a micro switch (33) and a remote signaling terminal (36); the spring element assembly (31) is arranged in the housing (1), the spring element assembly (31) comprises a tripping spring element (312), an end of the tripping spring element (312) is soldered to the tripping seat (32), and the tripping seat (32) is integrally arranged with the graphite electrode A (22); the micro switch (33) is buckled and connected to the housing (1), and the remote signaling terminal (36) is electrically connected to the micro switch (33); when the fault current causes the graphite gap assembly (2) to heat up, the tripping spring element (312) is disengaged from the tripping seat (32) and triggers the micro switch (33); The graphite gap assembly (2) corresponds to a partition assembly (7), and the partition assembly (7) includes a partition plate (71), an elastic member (72) and a guide block (73); an inner shell (21) is provided in the outer shell (1), the partition plate (71) is slidably provided on the inner shell (21), the elastic member (72) is respectively connected to the inner shell (21) and the partition plate (71), the guide block (73) is connected to the partition plate (71), and the guide block (73) is provided with a guide slope; When the tripping spring piece (312) is tripped from the tripping seat (32), the elastic member (72) drives the partition plate (71) to slide between the tripping spring piece (312) and the tripping seat (32), and the partition plate (71) isolates the tripping spring piece (312) from the tripping seat (32); When the tripping spring piece (312) moves in a direction close to the tripping seat (32), the tripping spring piece (312) pushes the guide block (73) to move via the guide slope, so that the guide block (73) drives the partition plate (71) to move in a direction away from the tripping seat (32).

2. The graphite full-module trip power surge protector according to claim 1, characterized in that: The end of the tripping spring (312) is connected to an indicator piece (34), and the indicator piece (34) is painted with a color; the housing (1) is provided with an observation hole, and a transparent window (35) is connected to the observation hole; when the tripping mechanism (3) is tripped, the tripping spring (312) drives the indicator piece (34) to approach the transparent window (35).

3. The graphite full-module trip power surge protector according to claim 1, characterized in that: The graphite gap assembly (2) includes a graphite sheet (24) and a graphite gap spacer (25); the graphite electrode A (22) and the graphite electrode B (27) are spaced apart, and a plurality of graphite sheets (24) are stacked and arranged, and the plurality of graphite sheets (24) are located between the graphite electrode A (22) and the graphite electrode B (27); the graphite gap spacer (25) is located between adjacent graphite sheets (24), and the graphite gap spacer (25) separates adjacent graphite sheets (24); the trip seat (32) is integrally connected to the center position of the graphite electrode A (22), and the trip seat (32) is located in the stacking direction of the graphite sheets (24).

4. The graphite full-module trip power surge protector according to claim 3, characterized in that: The graphite gap assembly (2) further includes a graphite PCB board (26), the graphite PCB board (26) being connected between the graphite electrode A (22) and the graphite electrode B (27), and the graphite PCB board (26) being electrically connected to the graphite sheet (24).

5. The graphite full-module trip power surge protector according to claim 4, characterized in that: The graphite gap assembly (2) further includes a graphite fixing block (23), wherein the graphite fixing block (23) includes a graphite fixing block A (231) and a graphite fixing block B (232), and the graphite fixing block A (231) and the graphite fixing block B (232) are both connected between the graphite electrode A (22) and the graphite electrode B (27); The graphite fixing block A (231) and the graphite fixing block B (232) enclose the graphite gap spacer (25) and the graphite sheet (24); the graphite gap spacer (25) is connected to the graphite fixing block A (231) and the graphite fixing block B (232) respectively; the graphite fixing block B (232) separates the graphite PCB board (26) and the graphite sheet (24); Two graphite fixing blocks B (232) are provided, and the two graphite fixing blocks B (232) are enclosed to form an introduction groove. The graphite PCB board (26) is provided with a pin row, and the pin row of the graphite PCB board (26) passes through the introduction groove and contacts the graphite sheet (24).

6. The graphite full-module trip power surge protector according to claim 3, characterized in that: Three graphite gap assemblies (2) are provided, a gas discharge tube (6) is provided in the housing (1), and four tripping mechanisms (3) are provided, wherein three of the tripping mechanisms (3) correspond to and are connected to the three graphite gap assemblies (2) one by one, and another of the tripping mechanisms (3) corresponds to and is connected to the gas discharge tube (6); Four first wiring assemblies (4) and one second wiring assembly (5) are provided in the housing (1); the four first wiring assemblies (4) correspond to and are connected to the four tripping mechanisms (3) respectively; the three graphite gap assemblies (2) are connected in series with the gas discharge tube (6); and the gas discharge tube (6) is connected to the second wiring assembly (5).

7. The graphite full-module trip power surge protector according to claim 6, characterized in that: The gas discharge tube (6) corresponds to a partition assembly (7), and the partition assembly (7) includes a partition plate (71), an elastic member (72), and a guide block (73); an inner shell (21) is provided in the outer shell (1), the partition plate (71) is slidably provided on the inner shell (21), the elastic member (72) is respectively connected to the inner shell (21) and the partition plate (71), the guide block (73) is connected to the partition plate (71), and the guide block (73) is provided with a guide slope; When the tripping spring piece (312) is tripped from the tripping seat (32), the elastic member (72) drives the partition plate (71) to slide between the tripping spring piece (312) and the tripping seat (32), and the partition plate (71) isolates the tripping spring piece (312) from the tripping seat (32); When the tripping spring piece (312) moves in a direction close to the tripping seat (32), the tripping spring piece (312) pushes the guide block (73) to move via the guide slope, so that the guide block (73) drives the partition plate (71) to move in a direction away from the tripping seat (32).

8. The graphite full-module trip power surge protector according to claim 7, characterized in that: The partition plates (71), the elastic members (72) and the guide blocks (73) are all arranged in a plurality facing each other, and the top sides of the partition plates (71) are arranged in a staggered manner; When the tripping spring (312) is tripped from the tripping seat (32), the elastic member (72) drives the two opposing partition plates (71) to move toward each other, so that the top sides of the two opposing partition plates (71) cut the wire between the tripping spring (312) and the tripping seat (32).

9. The graphite full-module trip power surge protector according to claim 7, characterized in that: The trip spring (312) is provided with a narrowing groove (3121) at an end portion close to the trip seat (32), the partition plate (71) corresponds to the narrowing groove (3121) of the trip spring (312), and the guide block (73) corresponds to an end of the trip spring (312) away from the narrowing groove (3121).

10. The graphite full-module trip power surge protector according to claim 8, characterized in that: The guide block (73) or the partition plate (71) is provided with a through hole. When the trip spring (312) contacts the trip seat (32), a limiting rod (74) is passed through the through hole. The trip spring (312) abuts against the limiting rod (74). The limiting rod (74) temporarily limits the welding position of the trip spring (312).

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