Graphite full-module tripping power supply surge protector

Abstract

The invention provides a graphite full-module tripping power supply surge protector, and relates to the technical field of surge protectors. The graphite full-module tripping power supply surge protector comprises a shell, a graphite gap assembly and a tripping mechanism, the graphite gap assembly is arranged in the shell, and the graphite gap assembly comprises a graphite electrode A and a graphite electrode B; the tripping mechanism comprises an elastic sheet assembly, a tripping seat, a microswitch and a remote signaling terminal; the elastic sheet assembly is arranged in the shell, the elastic sheet assembly comprises a tripping elastic sheet, the end part of the tripping elastic sheet is in tin soldering connection with a tripping seat, and the tripping seat and the graphite electrode A are integrally arranged; the microswitch is in buckling connection with the shell, and the remote signaling terminal is electrically connected with the microswitch; and when the graphite gap assembly is heated by the fault current, the tripping elastic sheet is separated from the tripping seat and triggers the microswitch. The graphite full-module tripping power supply surge protector can be tripped in time in case of fault current, combustion accidents caused by overheating are avoided, and normal operation of circuit equipment is ensured.

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 power surge protector is a device that provides safety protection for power grids, electrical equipment, and electronic circuits. When lightning current is transmitted through the power supply line or coupled into the power supply system to generate lightning overvoltage, the power surge protector is activated instantly, releasing the lightning current to the ground and clamping the overvoltage within the tolerance range of the back-end equipment, thereby protecting the equipment from damage.

[0003] Power surge protectors are divided into switch type, voltage limiting type and short circuit type. The existing switch type surge protectors do not have any requirements for thermal stability and no tripping device in the domestic and international standards and specifications. In actual applications, they rely on their own current breaking capacity and cooperate with the front-end series backup protector to solve the short circuit burning problem under abnormal power grid conditions. However, in scenarios with insufficient power supply capacity, when the power surge protector fails due to excessive lightning current or neglect of inspection, the short circuit current is not enough to trigger the backup protector, resulting in a protection blind spot and a power surge protector burning accident.

[0004] In addition, in the existing technology, some power surge protectors are equipped with a tripping mechanism, but the tripping mechanism has a long heat transfer path and a slow response speed, which is not enough to quickly cut off the fault current, and still causes fault burning. And in the existing technology, especially Iimp: multilayer graphite gap lightning arresters above 12.5kA are not equipped with a thermal tripping mechanism. The main reason is that the tripping point is not easy to meet both high-energy impact and large current fast tripping. Therefore, the existing power surge protector needs to be improved. Summary of the invention

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

[0006] The present application provides a graphite full-module tripping power surge protector, which adopts the following technical solution: A graphite full-module tripping power surge protector, comprising: shell; A graphite gap assembly, wherein the graphite gap assembly is disposed in the housing, and the graphite gap assembly comprises a graphite electrode A and a graphite electrode B; A tripping mechanism, the tripping mechanism comprises a spring element assembly, a tripping seat, a micro switch and a remote signal terminal; the spring element assembly is arranged in the housing, the spring element assembly comprises 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 signal terminal is electrically connected to the micro switch; when the fault current causes the graphite gap assembly to heat up, the tripping spring element is disengaged from the tripping seat and triggers the micro switch.

[0007] 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 message 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.

[0008] Optionally, an indicator sheet is connected to the end of the trip spring, and the indicator sheet is painted with color; the shell is provided with an observation hole, and a transparent window is connected to the observation hole; when the trip mechanism is tripped, the trip spring drives the indicator sheet to approach the transparent window.

[0009] By adopting the above technical solution, when the tripping mechanism trips, the tripping spring drives the indicator sheet close to the transparent window, which makes it easier for the maintenance personnel to visually find the tripping situation through the transparent window, thereby improving the efficiency of the maintenance personnel in identifying the tripping state of the surge protector. The indicator sheet is painted with color, which further enhances the visual prompt effect and makes the tripping state more eye-catching.

[0010] Optionally, the graphite gap assembly includes a graphite sheet and a graphite gap spacer; the graphite electrode A and the graphite electrode B are spaced apart, a plurality of the graphite sheets are stacked, and the plurality of graphite sheets are located between the graphite electrode A and the graphite electrode B; the graphite gap spacer is located between adjacent graphite sheets, and the graphite gap spacer separates 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.

[0011] By adopting the above technical solution, multiple graphite sheets are stacked between graphite electrode A and graphite electrode B, and adjacent graphite sheets are separated by graphite gap spacers to ensure reasonable gap distribution between each graphite sheet. The trip seat is integrally connected to the center position of graphite electrode A and is located in the stacking direction of the graphite sheets, making the position layout of the trip seat more reasonable, and the heat at the center position of the graphite sheet is more concentrated, which facilitates the rapid conduction of heat to the trip seat, reduces the heat transfer path, shortens the thermal response time, and improves the trip response speed.

[0012] 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.

[0013] By adopting the above technical solution, the graphite electrode A and the graphite electrode B are symmetrically provided with fixing grooves, and the graphite PCB board is clamped in the fixing grooves of the graphite electrode A and the graphite electrode B, so as to fix the position of the graphite PCB board, and 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 break through the graphite gap, thereby accelerating the discharge speed and the response speed, and reducing the risk of damage to circuit equipment due to breakdown delay.

[0014] 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; The graphite fixing block A and the graphite fixing block B surround 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; The two graphite fixing blocks B are provided, and the two graphite fixing blocks B are surrounded to form an introduction groove. The graphite PCB board is provided with a row of needles, and the row of needles of the graphite PCB board passes through the introduction groove and contacts the graphite sheet.

[0015] By adopting the above technical solution, the graphite fixing block B can effectively reduce the heat transfer from the graphite sheet to the graphite PCB board, reduce the performance degradation or damage of the graphite PCB board caused by high temperature, thereby improving the overall stability and reliability. The graphite fixing block A and the graphite fixing block B surround the graphite gap spacer and the graphite sheet, which can facilitate the installation and fixation of the graphite sheet and the graphite gap spacer. When realizing the electrical connection between the graphite PCB board and the graphite sheet, the pins of the graphite PCB board are first contacted with the graphite sheet, and then the two graphite fixing blocks B are surrounded, which can facilitate the installation operation.

[0016] Optionally, three graphite gap components 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 components one by one, and another of the tripping mechanisms corresponds to and is connected to the gas discharge tube; Four first wiring assemblies and one second wiring assembly are arranged in the shell, 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.

[0017] By adopting the above technical solution, three first wiring components are connected to three phase lines of an external circuit, and another first wiring component is connected to an external neutral line. The three graphite gap components and the gas discharge tube can protect against surges between the phase line, the neutral line and the ground line.

[0018] 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 inside 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; When the trip spring piece is released from the trip seat, the elastic member drives the partition plate to slide between the trip spring piece and the trip seat, and the partition plate separates the trip spring piece from the trip seat; When the trip spring moves toward the direction approaching the trip seat, the trip spring pushes the guide block to move through the guide slope, so that the guide block drives the partition plate to move toward the direction away from the trip seat.

[0019] By adopting the above technical solution, when the trip spring piece and the trip seat are tripped, the elastic member drives the partition plate to slide between the trip spring piece and the trip seat, thereby realizing effective isolation between the trip spring piece and the trip seat. This design can reduce the arc and wire drawing phenomenon after tripping, and improve the safety of the surge protector. When the trip spring piece and the trip seat need to be soldered, the trip spring piece is pressed down, and the trip spring piece pushes the guide block to move, and the guide block drives the partition plate to move away from the trip seat, leaving operating space, so as to facilitate the contact between the trip spring piece and the trip seat, so as to facilitate the subsequent soldering operation.

[0020] Optionally, the partition plates, the elastic members and the guide blocks are arranged in plurality opposite to each other, and the top sides of the partition plates are arranged in a staggered manner; When the release spring piece is released from the release 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 release spring piece and the release seat.

[0021] By adopting the above technical solution, when the trip spring piece and the trip 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 trip spring piece and the trip seat can be effectively cut off, thereby reducing the influence of the wire drawing on the safety after tripping and improving the overall reliability of the surge protector.

[0022] Optionally, a narrowing groove is formed at the end of the trip spring sheet close to the trip seat, the partition plate corresponds to the narrowing groove of the trip spring sheet, and the guide block corresponds to the end of the trip spring sheet away from the narrowing groove.

[0023] By adopting the above technical solution, the trip spring is narrowed at the end near the trip seat, so that the top side of the partition plate can have a wider width, increasing the area of ​​the top side of the partition plate and improving the partition effect of the partition plate. In addition, the top side of the partition plate can be closer to the trip seat, and when the trip spring is tripped, the partition plate can be shielded above the trip seat more quickly.

[0024] Optionally, the guide block or the partition plate is provided with a through hole. When the trip spring is in contact with 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.

[0025] By adopting the above technical solution, before the trip spring piece is connected to the trip seat by soldering, the limit rod is inserted into the through hole of the guide block, which can temporarily fix the welding position of the trip spring piece and reduce the displacement of the trip spring piece during the soldering process, thereby improving the stability of the soldering connection. And because the limit rod temporarily fixes the welding position of the trip spring piece, the operation and maintenance personnel do not have to press the trip spring piece all the time, which improves the convenience of operation. And after waiting for the soldering between the trip spring piece and the trip seat to cool down, the connection between the trip spring piece and the trip seat is more stable. At this time, the limit rod is pulled out, so that the subsequent trip mechanism can be tripped normally.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The trip seat is integrated with the graphite electrode A, and the trip seat is located directly above the graphite sheet, which is conducive to transferring heat to the trip seat and shortening the heat transfer path. The trip seat corresponds to the center position of the graphite sheet, and the heat is more concentratedly transferred to the trip seat, which improves the thermal response speed and enables the tripping action to be completed in a shorter time; 2. When the trip spring is tripped from the trip seat, the trip spring can trigger the micro switch, which then transmits the trip signal to the remote signal terminal, making it easy for the operation and maintenance personnel to quickly and accurately detect the trip state, so as to take maintenance measures in time, thus improving the maintenance efficiency of the equipment and the overall safety of the system; 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 off 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

[0027] Figure 1 It is a schematic diagram of the overall structure of the surge protector of Example 1 of the present application; Figure 2 This is a schematic diagram of the structure of the surge protector in Example 1 of the present application after the outer shell is removed; 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; Figure 4 It is a schematic diagram of the exploded structure of the graphite gap assembly of Example 1 of the present application; Figure 5 is a front view structural schematic diagram of the surge protector of Example 1 of the present application without the outer shell; Figure 6 is a schematic structural diagram of another viewing angle of the surge protector of Example 1 of the present application with the housing removed; Figure 7 This is a schematic diagram of the structure of the surge protector of Example 2 of the present application after the outer shell is removed; Figure 8 is a schematic diagram of the structure of the surge protector of Example 3 of the present application after the outer shell is removed; Fig. 9 is a schematic diagram of the structure of the surge protector of Example 4 of the present application after the outer shell is removed; Fig.10 It is a schematic structural diagram of a tripping mechanism, a graphite gap assembly and a partition assembly of Example 4 of the present application; Fig.11 This is a schematic diagram of the partial structure of the partition assembly on the inner shell A of Example 4 of the present application; Fig.12 This is a schematic diagram of the structure in which the release spring is located between two partition plates in Example 5 of the present application; Fig.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; Fig.14 is a schematic diagram of the structure of the surge protector of Example 6 of the present application after the outer shell is removed; Fig.15It is a structural schematic diagram of the tripping mechanism, graphite gap assembly and partition assembly of Example 6 of the present application.

[0028] Description 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. Spring clip bracket; 312. Release spring clip; 3121. Narrowing groove; 32. Release seat; 33. Micro switch; 34. Indicator sheet; 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

[0029] The following combination Figures 1 to 15 This application is described in further detail.

[0030] Embodiment 1:

[0031] Embodiment 1 of the present application provides a graphite full-module tripping power surge protector.

[0032] refer to Figure 1 and Figure 2 The graphite full-module tripping power surge protector includes a housing 1, a graphite gap assembly 2, a tripping mechanism 3 and a first wiring assembly 4. The housing 1 includes an upper cover 11 and a base 12, and the upper cover 11 is fixedly connected to the base 12, so as to provide protection for the structure inside the housing 1. The graphite gap assembly 2 is located inside the housing 1, and the tripping 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 heats up to cause the tripping mechanism 3 to trip, thereby disconnecting the electrical connection between the tripping mechanism 3 and the graphite gap assembly 2.

[0033] refer to Figure 3 and Figure 4The graphite gap assembly 2 includes an inner shell 21, a graphite electrode A22, a graphite electrode B27, a graphite fixing block 23, a graphite sheet 24, a graphite gap spacer 25 and a graphite PCB board 26. For a group of graphite gap assemblies 2, the graphite electrode A22 and the graphite electrode B27 are arranged at intervals, and a plurality of graphite sheets 24 are stacked at intervals, and a plurality of graphite sheets 24 are located between the graphite electrode A22 and the graphite electrode B27. The graphite gap spacer 25 is annular, and the graphite gap spacer 25 is located between adjacent graphite sheets 24. The graphite gap spacer 25 abuts against the adjacent graphite sheets 24, and the graphite gap spacer 25 separates the adjacent graphite sheets 24, so that the adjacent graphite sheets 24 have a gap. In this embodiment, the graphite gap spacer 25 is made of polytetrafluoroethylene material to improve the weather resistance of the graphite gap spacer 25.

[0034] 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 one graphite gap assembly 2, two graphite fixing blocks B232 are provided. Both the graphite fixing block A231 and the graphite fixing block B232 are located between the graphite electrode A22 and the graphite electrode B27. The top and bottom ends of the graphite fixing block A231 are respectively connected to the graphite electrode A22 and the graphite electrode B27 by screws. The two graphite fixing blocks B232 and one graphite fixing block A231 enclose the graphite sheet 24 and the graphite gap spacer 25, so that the graphite sheet 24 and the graphite gap spacer 25 are easily installed between the graphite fixing block A231 and the graphite fixing block 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 snapped into the grooves of the graphite fixing block A231 and the graphite fixing block B232, thereby fixing the position of the graphite gap spacer 25.

[0035] refer to Figure 1 and Figure 3 In this embodiment, the space in the horizontal direction inside the housing 1 is limited, and the graphite sheets 24 of this embodiment are stacked vertically at intervals, so that as many graphite sheets 24 as possible can be stacked inside the housing 1. When the fault current passes through the surge protector, more graphite sheets 24 can generate more heat, which is conducive to the tripping of the tripping mechanism 3 and improves the tripping sensitivity.

[0036] refer to Figure 3 and Figure 4Graphite electrode A and graphite electrode B are symmetrically provided with fixing grooves, and the graphite PCB board is clamped in the fixing grooves of graphite electrode A and graphite electrode B, so as to fix the position of the graphite PCB board. A row of pins is connected to the graphite PCB board 26, and an introduction groove is formed between the two graphite fixing blocks B232. The row of pins on the graphite PCB board 26 passes through the introduction groove and is electrically connected to the graphite sheet 24. The two graphite fixing blocks B232 are enclosed, which is convenient for installing and fixing the graphite sheet 24 and the graphite gap spacer 25 on the one hand, and is convenient for the row of pins on the graphite PCB board 26 to pass through the introduction groove on the other hand. When the fault current passes through the graphite gap assembly 2, the graphite PCB board 26 is conducive to the fault current breaking through the gap of the graphite sheet 24 in sequence.

[0037] refer to Figure 2 and Figure 4 The graphite PCB board 26 is located outside the graphite fixing block 23. The graphite fixing block B232 separates the graphite PCB board 26 from the graphite sheet 24, reducing the influence of the heat of the graphite sheet 24 on the graphite PCB board 26, and reducing the performance degradation or damage of the graphite PCB board 26 due to overheating. The inner shell 21 includes an inner shell A211 and an inner shell B212. The inner shell A211 is covered on the outside of the graphite PCB board 26 and the graphite electrode A22, and the inner shell A211 provides protection for the graphite PCB board 26 and the graphite sheet 24.

[0038] 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, and reduces the damage to the base 12 caused by the heat generated by the graphite sheet 24 during testing or fault current.

[0039] refer to Figure 2 and Figure 3 The tripping mechanism 3 includes a tripping seat 32, which is integrally formed with the graphite electrode A22, which is conducive to the graphite sheet 24 transferring heat to the tripping seat 32 through the graphite electrode A22. The tripping seat 32 passes through the inner shell A211, and the tripping seat 32 corresponds to the center position of the graphite sheet 24. The heat at the center of the graphite sheet 24 is more concentrated, which is conducive to the graphite sheet 24 transferring heat to the tripping seat 32.

[0040] refer to Figure 2 and Figure 3 The first wiring assembly 4 includes a wire pressing frame 41, a wire pressing frame screw 42 and a wire pressing frame bracket 43. The wire pressing frame 41 is fixed in the base 12, and the wire pressing frame screw 42 passes through the wire pressing frame bracket 43 and is threadedly connected to the wire pressing frame 41. The external wire is inserted into the wire pressing frame 41, and the wire pressing frame screw 42 is tightened, so as to realize the electrical connection between the external circuit and the first wiring assembly 4.

[0041] 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.

[0042] refer to Figure 2 and Figure 5 , press the end of the trip spring piece 312 to make the trip spring piece 312 contact with the trip seat 32, the trip spring piece 312 accumulates elastic potential energy, and then the trip spring piece 312 and the trip seat 32 are soldered. When the fault current passes through the graphite gap assembly 2, the heat generated causes the trip spring piece 312 and the trip seat 32 to be desoldered, and the trip spring piece 312 moves upward under the elastic action, so that the trip spring piece 312 and the trip seat 32 are tripped, and the electrical connection between the trip spring piece 312 and the trip seat 32 is disconnected. In this embodiment, the trip spring piece 312 has a long stroke, and after the trip spring piece 312 and the trip seat 32 are tripped, the safety between the trip spring piece 312 and the trip seat 32 can be improved.

[0043] refer to Figure 2 and Figure 5 The micro switch 33 is connected to the upper cover 11 by a buckle position, which can facilitate the connection or separation of the micro switch 33 and the upper cover 11. The micro switch 33 corresponds to the trip spring 312. The remote signal terminal 36 is fixedly connected to the upper cover 11, and the remote signal terminal 36 is electrically connected to the micro switch 33. When the trip spring 312 is tripped from the trip seat 32, the trip spring 312 rebounds and abuts against the spring of the micro switch 33, thereby triggering the micro switch 33. The micro switch 33 obtains the trip information of the trip mechanism 3 and transmits the trip information to the remote signal terminal 36, so that the trip information can be sent for remote alarm.

[0044] refer to Figure 2 and Figure 5 The tripping mechanism 3 further includes an indicator sheet 34 and a transparent window 35. The indicator sheet 34 is fixedly connected to the end of the tripping spring sheet 312. The surface of the indicator sheet 34 is painted with a color. In this embodiment, the surface of the indicator sheet 34 is painted red. The upper cover 11 is provided with an observation hole, and the transparent window 35 is fixedly connected to the observation hole of the upper cover 11. When the tripping spring sheet 312 is tripped from the tripping seat 32, the tripping spring sheet 312 drives the indicator sheet 34 to approach the transparent window 35. The indicator sheet 34 can be seen from the outside of the upper cover 11 through the transparent window 35, so that the operation and maintenance personnel can observe the tripping condition of the tripping mechanism 3 from the outside.

[0045] refer to Figure 2 and Figure 6, a gas discharge tube 6 is arranged inside the housing 1, and the inner housing B212 is covered on the outside of the gas discharge tube 6. In this embodiment, four first wiring assemblies 4 and tripping mechanisms 3 are provided and correspond to each other, and three graphite gap assemblies 2 are provided, wherein three first wiring assemblies 4 correspond to three graphite gap assemblies 2 one by one, 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, and another first wiring assembly 4 is electrically connected to the N line of the external circuit.

[0046] 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, and 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.

[0047] 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, the neutral line and the 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, the full module is tripped.

[0048] The implementation principle of the graphite full-module tripping power surge protector in Example 1 of the present application is as follows: when the fault current passes through the graphite gap assembly 2, the heat generated by the graphite sheet 24 is transferred to the trip seat 32, so that the trip seat 32 and the trip spring 312 are tripped, the trip spring 312 rebounds and contacts the micro switch 33, and the micro switch 33 transmits the trip information to the remote signal terminal 36. The indicator sheet 34 moves with the trip spring 312, and the trip spring 312 makes the indicator sheet 34 close to the transparent window 35, so that the tripping condition of the trip mechanism 3 can be observed from the outside of the housing 1.

[0049] Embodiment 2:

[0050] Embodiment 2 of the present application provides a graphite full-module tripping power surge protector. The difference between Embodiment 2 of the present application and Embodiment 1 is that: refer to Figure 7, four tripping mechanisms 3 are provided, four graphite gap components 2 are provided, the four tripping mechanisms 3 correspond to the four graphite gap components 2 one by one, and the graphite electrodes B27 of the four graphite gap components 2 are connected to the second wiring component 5. For the present application, four graphite gap components 2 are provided without the gas discharge tube 6, which is the "4+0" mode of the present application.

[0051] Embodiment 3:

[0052] Embodiment 3 of the present application provides a graphite full-module tripping power surge protector. The difference between Embodiment 3 of the present application and Embodiment 1 is that: refer to Figure 8 , a tripping mechanism 3 and a graphite gap component 2 in a housing 1 are each provided with one, a first wiring component 4 is connected to the tripping mechanism 3, and a second wiring component 5 is connected to the graphite electrode B27 of the graphite gap component 2. The formed surge protector can 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 component 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.

[0053] Embodiment 4:

[0054] Embodiment 4 of the present application provides a graphite full-module tripping power surge protector. The difference between Embodiment 4 of the present application and Embodiment 1 is that: refer to Fig. 9 and Fig.10 A partition assembly 7 is 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 with 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.

[0055] refer to Fig.10 and Fig.11 In this embodiment, the partition assembly 7 on the inner shell A211 is used as an example for explanation. A plurality of slide grooves are provided on the inner shell A211. The partition plate 71 is slidably connected to the inner shell A211 through the slide grooves. The guide block 73 is slidably connected to the inner shell A211 through the slide grooves. The elastic member 72 is specifically a spring. The elastic member 72 is located in the slide groove. There are a plurality of elastic members 72. One of the elastic members 72 is respectively connected to the inner shell A211 and the partition plate 71, and the other 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.

[0056] refer to Fig.10 and Fig.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, so that the guide block 73 moves away from the trip seat 32, thereby driving the partition plate 71 to move away from the trip seat 32, leaving an 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.

[0057] refer to Fig.10 and Fig.11 When the trip spring piece 312 is released from the trip seat 32, the trip spring piece 312 rebounds upward, and the elastic member 72 drives the partition plate 71 to move toward the trip seat 32 until the top side of the partition plate 71 moves between the trip spring piece 312 and the trip seat 32. The partition plate 71 isolates the trip spring piece 312 from the trip seat 32, which can reduce the arc phenomenon between the trip spring piece 312 and the trip seat 32. When the trip spring piece 312 is released from the trip seat 32, the molten tin solder causes wire drawing between the trip spring piece 312 and the trip seat 32. The partition plate 71 moves between the trip spring piece 312 and the trip seat 32 to reduce the wire drawing, thereby reducing the accidental conduction between the trip spring piece 312 and the trip seat 32.

[0058] refer to Fig.10 and Fig.11 In this embodiment, the direction from the partition plate 71 to the trip seat 32 is the width direction, and the end of the trip spring 312 close to the trip seat 32 is provided with narrowing grooves 3121 on both sides in the width direction, so that the width of the end of the trip spring 312 close to the trip seat 32 is narrowed, so that the top side of the partition plate 71 can be designed to be wider in the width direction during design, thereby increasing the area of ​​the top side of the partition plate 71 and improving the partition effect. In addition, the top side of the partition plate 71 is 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, so that the partition plate 71 can more quickly isolate the trip spring 312 and the trip seat 32.

[0059] Embodiment 5:

[0060] Embodiment 5 of the present application provides a graphite full-module tripping power surge protector. The difference between Embodiment 5 of the present application and Embodiment 4 is that: refer to Fig.12 and Fig.13In this embodiment, for one partition assembly 7, two partition plates 71 are provided opposite to each other, and two guide blocks 73 are provided opposite to each other, and the partition plates 71 correspond to the guide blocks 73 one by one. When the release spring piece 312 is pressed down, the release spring piece 312 moves the two guide blocks 73 away from each other through the guide slope, thereby driving the two partition plates 71 away from each other, making it easier for the release spring piece 312 to contact the release seat 32, thereby facilitating the subsequent soldering operation of the release spring piece 312 and the release seat 32.

[0061] refer to Fig.12 and Fig.13 When the trip spring 312 is tripped from the trip seat 32, the trip spring 312 rebounds upward, and the elastic member 72 drives the two partition plates 71 to approach each other. In this embodiment, the two guide blocks 73 arranged opposite to each other are staggered in the horizontal direction to reduce the interference between the two guide blocks 73 when approaching. 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 approach each other, the top sides of the two partition plates 71 apply a shear force to the wire drawing, which can make the top sides of the two partition plates 71 cut off the wire drawing, and can further reduce the occurrence of wire drawing between the trip spring 312 and the trip seat 32. In addition, the two partition plates 71 shield the top side of the trip seat 32, which can reduce the occurrence of arcing between the trip spring 312 and the trip seat 32.

[0062] Embodiment 6:

[0063] Embodiment 6 of the present application provides a graphite full-module tripping power surge protector. The difference between Embodiment 6 of the present application and Embodiment 5 is that: refer to Fig.14 and Fig.15 In this embodiment, the partition assembly 7 further includes a limiting rod 74, and the guide block 73 is provided with a through hole. When the release spring piece 312 is pressed down to make the release spring piece 312 contact the release seat 32, the limiting rod 74 is passed through the through hole of the guide block 73 of the four partition assemblies 7, and the release spring piece 312 abuts against the limiting rod 74. The limiting rod 74 temporarily limits the welding position of the release spring piece 312. At this time, the limiting rod 74 serves as an auxiliary welding fixture for the release spring piece 312, which can facilitate the soldering operation of the release spring piece 312 and the release seat 32. After the release spring piece 312 and the release seat 32 are soldered and connected, the limiting rod 74 is pulled out, so as to facilitate the normal release of the subsequent release mechanism 3. In other implementations of this embodiment, a through hole for the limiting rod 74 to pass through can also be provided on the partition plate 71.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A graphite full-module tripping 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 connected to the tripping seat (32) by soldering, and the tripping seat (32) and the graphite electrode A (22) are integrally arranged; the micro switch (33) is connected to the housing (1) by a buckle position, and the remote signaling terminal (36) is electrically connected to the micro switch (33); when a fault current causes the graphite gap assembly (2) to heat up, the tripping spring element (312) is separated from the tripping seat (32) and triggers the micro switch (33).

2. A graphite full-module tripping power surge protector according to claim 1, characterized in that: The end of the tripping spring piece (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 piece (312) drives the indicator piece (34) to approach the transparent window (35).

3. The graphite full-module tripping power surge protector according to claim 1, characterized in that: The graphite gap assembly (2) comprises a graphite sheet (24) and a graphite gap spacer (25); the graphite electrode A (22) and the graphite electrode B (27) are arranged at intervals, a plurality of the graphite sheets (24) are stacked, 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. A graphite full-module tripping power surge protector according to claim 3, characterized in that: The graphite gap assembly (2) further comprises a graphite PCB board (26), wherein the graphite PCB board (26) is connected between the graphite electrode A (22) and the graphite electrode B (27), and the graphite PCB board (26) is electrically connected to the graphite sheet (24).

5. A graphite full-module tripping power surge protector according to claim 4, characterized in that: The graphite gap assembly (2) further comprises a graphite fixing block (23), wherein the graphite fixing block (23) comprises a graphite fixing block A (231) and a graphite fixing block B (232), wherein 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; and 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 surrounded to form an introduction groove. The graphite PCB board (26) is provided with a row of needles, and the row of needles of the graphite PCB board (26) passes through the introduction groove and contacts the graphite sheet (24).

6. The graphite full-module tripping power surge protector according to claim 3, characterized in that: Three graphite gap components (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 components (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 arranged 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. A graphite full-module tripping power surge protector according to claim 6, characterized in that: The graphite gap assembly (2) or the gas discharge tube (6) has a partition assembly (7) corresponding thereto, the partition assembly (7) comprising a partition plate (71), an elastic member (72) and a guide block (73); an inner shell (21) is arranged inside the outer shell (1), the partition plate (71) is slidably arranged 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 inclined surface; When the release spring piece (312) is released from the release seat (32), the elastic member (72) drives the partition plate (71) to slide between the release spring piece (312) and the release seat (32), and the partition plate (71) separates the release spring piece (312) from the release seat (32); When the release spring piece (312) moves in a direction approaching the release seat (32), the release spring piece (312) pushes the guide block (73) to move via the guide inclined surface, so that the guide block (73) drives the partition plate (71) to move in a direction away from the release seat (32).

8. The graphite full-module tripping 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 release spring piece (312) is released from the release seat (32), the elastic member (72) drives 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 release spring piece (312) and the release seat (32).

9. The graphite full-module tripping power surge protector according to claim 7, characterized in that: A narrowing groove (3121) is provided at an end of the trip spring (312) 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 tripping 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, and when the trip spring piece (312) contacts the trip seat (32), a limiting rod (74) is passed through the through hole, the trip spring piece (312) abuts against the limiting rod (74), and the limiting rod (74) temporarily limits the welding position of the trip spring piece (312).

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