High-performance onboard lightning protector

Abstract

The invention relates to a high-performance onboard lightning protector, which relates to the technical field of lightning protectors, and comprises a lightning protector main body, an input connection cover body, a protection circuit board and an output connection cover body, the input connecting cover body and the output connecting cover body are fixedly connected to the two ends of the lightning protector main body through bolts; the onboard LC principle is used for protection, parameter selection of the inductor and the capacitor is optimized, the form is changed into onboard, the size is small, the weight is light, high insertion loss is achieved on the lightning frequency band, it is guaranteed that the residual voltage is low, the size of a welding spot is controlled through a solder mask, the requirement for high consistency of airborne products is met, and the requirement for high consistency of the airborne products is met. Through the replaceable structure of the circuit board, the maintenance and replacement cost of the circuit board is reduced, the circuit board is simple and convenient to disassemble and replace, and the connection structure of the circuit board is stable and firm.

Description

Technical Field

[0001] This application relates to the technical field of lightning protectors, and particularly to a high-performance on-board lightning protector. Background Art

[0002] With the development of electronic devices towards miniaturization, lightweight, and high performance, especially the widespread application of airborne radio frequency devices, how to achieve efficient and low-cost lightning protection in a limited space has become an important challenge.

[0003] Lightning electromagnetic pulse is a phenomenon of current transient and strong electromagnetic field radiation generated during lightning strikes, belonging to the secondary effect of lightning. Lightning electromagnetic pulses can conduct transient overvoltages and surge currents into electronic devices through power lines and signal lines, and can also conduct pulse energy into the devices through inductive coupling, capacitive coupling, or equivalent antenna coupling, causing serious harm to the backend circuit. By performing Fourier transform on the time-domain waveform diagram of the lightning electromagnetic pulse waveform, the spectral energy distribution is obtained, with a bandwidth within 0 - 2 MHz, and more than 99% of the energy distributed below 1 MHz; The existing radio frequency lightning protectors mainly adopt a coaxial structure and use the 1 / 4 wavelength principle or gas discharge tubes for protection. This type of protector can prevent lightning from damaging electronic devices to a certain extent, but its volume and weight are relatively large, not meeting the requirements of miniaturization, lightweight, high performance, and high consistency of airborne devices. Using PIN diodes for protection has the problems of high cost and unstable PIN tube performance, and there is a peak leakage problem in PIN diodes, resulting in peak residual voltage. These problems lead to significant limitations in the above solutions and restrict their application in airborne devices.

[0004] Therefore, a high-performance on-board lightning protector is proposed to address the above-related technical problems. Summary of the Invention

[0005] To improve the above problems, this application provides a high-performance on-board lightning protector.

[0006] This application provides a high-performance on-board lightning protector, adopting the following technical solutions: A high-performance on-board lightning protector includes a lightning protector main body, an input connection cover, a protection circuit board, and an output connection cover. The lightning protector main body is a hollow metal shell with openings at both ends, and both the input connection cover and the output connection cover are fixedly connected to both ends of the lightning protector main body by bolts; Among them, interface holes are provided in both the input connection cover body and the output connection cover body, and two groups of symmetrically arranged joint clamping blocks are provided in the interface hole of the input connection cover body. A plug-in side plate and a clamping side plate are provided on one side of the input connection cover body close to the lightning protection device main body, and the protection circuit board is plugged between the plug-in side plate and the clamping side plate. Plug-in sliders are fixedly connected to both sides of the protection circuit board.

[0007] Preferably, input end interfaces and output end interfaces are respectively welded to both ends of the protection circuit board. The input end interface is plugged into the interface hole of the input connection cover body, and the output end interface is plugged into the interface hole of the output connection cover body. Multiple groups of ceramic capacitors, multiple groups of high-precision wound inductors, and a grounding line are installed on the protection circuit board.

[0008] Preferably, the input end interface, the output end interface, the ceramic capacitors, the multiple groups of high-precision wound inductors, and the grounding line constitute a radio frequency path. The multiple groups of high-precision wound inductors and ceramic capacitors are connected in parallel between the input end interface and the output end interface, and one group or multiple groups of ceramic capacitors are provided. The grounding line is connected in series between the multiple groups of high-precision wound inductors, and only a soldermask layer with a thickness of 0.05 mm and a length of 1 mm is retained on the radio frequency path.

[0009] By adopting the above technical solution, since lightning mainly concentrates at frequencies below 2 MHz, it means that as long as the protector has sufficient attenuation in the frequency band below 2 MHz, the residual voltage can be ensured to be small enough, and at the same time, low insertion loss and low voltage standing wave ratio in the 2 - 4G frequency band are satisfied to ensure the normal transmission of radio frequency signals. By using the on-board LC protection principle, an on-board lightning protector with small volume, high performance, low cost, and high consistency for airborne S-band radio frequency equipment is realized. The interference of the soldermask layer on the impedance in the radio frequency path is reduced through fixed solder joints, and at the same time, the size of the solder joints can be controlled through the soldermask layer to meet the high consistency requirements of airborne products. Moreover, it has a small volume and light weight, and has a high insertion loss in the lightning frequency band to ensure a low residual voltage.

[0010] Preferably, two groups of symmetrically arranged limit slots are provided inside the lightning protection device main body, and connection plug blocks that are fitted with the limit slots are provided on the outer sides of the plug-in side plate and the clamping side plate. Plug-in connection slots that are fitted with the plug-in sliders are provided on the inner sides of the plug-in side plate and the clamping side plate.

[0011] By adopting the above technical solution, the structure of limit plug-in is used to prevent the protection circuit board or the input connection cover body from shifting in position during plug-in connection or damaging the electrical components on the protection circuit board.

[0012] Preferably, a wiring hole is provided on the input connection cover body, and one end of the grounding line is inserted into the wiring hole. A clamping plate sliding groove is provided on the side of the input connection cover body close to the lightning arrester main body, and the clamping side plate is slidably connected in the clamping plate sliding groove.

[0013] Preferably, the inside of the plugging side plate is a hollow structure. A driving runner, a worm gear and a worm are arranged inside the plugging side plate, and the worm gear and the worm are meshed with each other. One end of the worm is welded with a connecting rotating shaft, and a driving bevel gear is connected to the connecting rotating shaft through a spline.

[0014] Preferably, a screw rod assembly is arranged inside the output connection cover body. The screw rod assembly includes two clamping block screw rods with opposite thread directions, and both of the two clamping block screw rods are rotatably connected inside the output connection cover body. One end of the clamping block screw rod is connected with a clamping block bevel gear meshed with the driving bevel gear through a spline.

[0015] Preferably, the joint clamping block is L-shaped, and one end of the joint clamping block is fixedly connected with a transmission nut seat. The transmission nut seat is threadedly connected to the clamping block screw rod. A connecting rod is fixedly connected to a group of joint clamping blocks close to the connecting plug block. One end of the connecting rod passes through the clamping plate sliding groove and is inserted into the clamping side plate.

[0016] Preferably, the driving runner and the worm gear are coaxially and rotatably connected to the inner wall of the plugging side plate, the driving runner is connected in the plugging connection groove, and one side of the plugging slider is attached to one side of the driving runner.

[0017] By adopting the above technical solution, through the interlocking plugging and fixing structure, the circuit board can be freely replaced. When the circuit board is damaged, only the circuit board needs to be replaced, thereby reducing the maintenance and replacement cost of the lightning arrester. Moreover, the replacement of the circuit board is safer and more convenient, the connection and fixing structure is more stable, and the replacement work of the circuit board can be completed quickly.

[0018] 1. Compared with the prior art, this high-performance on-board lightning arrester uses the on-board LC principle for protection. By optimizing the parameter selection of inductors and capacitors, changing its form to on-board, making it small in volume and light in weight, and having a high insertion loss in the lightning frequency band to ensure its low residual voltage. And a soldermask layer is used to control the size of the solder joints to meet the requirements of high consistency of airborne products. Since lightning mainly concentrates in the frequency below 2MHz, it means that as long as the arrester has sufficient attenuation in the frequency band below 2MHz, the residual voltage can be ensured to be small enough. At the same time, it meets the requirements of low insertion loss and low voltage standing wave ratio in the 2 - 4G frequency band to ensure the normal transmission of radio frequency signals. By using the on-board LC protection principle, an on-board lightning arrester with small volume, high performance, low cost and high consistency for airborne S-band radio frequency equipment is realized.

[0019] 2. Compared with the prior art, for this high-performance on-board lightning protector, the replaceable structure of the circuit board reduces the maintenance and replacement costs of the circuit board. When the protective circuit board is damaged, the input connection cover can be removed by bolts at this time, and then the protective circuit board can be taken out from the input connection cover, and then the replaced protective circuit board 3 is inserted into the input connection cover.

[0020] 3. Compared with the prior art, for this high-performance on-board lightning protector, the disassembly and replacement of the circuit board are simple and convenient, and the connection structure of the circuit board is stable and firm. The plug-in slider on one side of the protective circuit board is plugged into the plug-in connection groove and slowly inserted from one end of the plug-in connection groove. During the movement of the plug-in slider, the driving runner is driven to rotate. And when the plug-in slider is completely inserted into the plug-in connection groove, the joint clamping block clamps and fixes the input end interface at this time. At the same time, the clamping side plate moves to a position where it fits with the protective circuit board, and at this time, the plug-in slider on one side of the protective circuit board is buckled into the plug-in connection groove of the clamping side plate. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the main body of this application; Figure 2 is a schematic structural diagram of the connection structure of the main body of this application; Figure 3 is a schematic structural diagram at the lightning protector main body of this application; Figure 4 is a schematic structural diagram at the input connection cover of this application; Figure 5 is a schematic structural diagram of the connection structure of the protective circuit board of this application; Figure 6 is a schematic structural diagram of the protective circuit board of this application; Figure 7 is a schematic circuit diagram of the protective circuit board of this application; Figure 8 is a schematic structural diagram of the inner side at the input connection cover of this application; Figure 9 is a schematic structural diagram of the screw component of this application; Figure 10 is a schematic structural diagram of the plug-in slider of this application.

[0022] The reference numerals are: 1, the main body of the lightning protector; 11, the limit slot; 2, the input connection cover; 21, the interface hole; 211, the joint clamp block; 212, the drive nut seat; 213, the connecting rod; 214, the clamp block bevel gear; 22, the plugging side plate; 221, the drive runner; 222, the worm gear; 223, the worm; 224, the connecting rotating shaft; 225, the drive bevel gear; 23, the clamping side plate; 231, the connecting plug; 232, the plugging connection groove; 24, the clamping plate chute; 25, the screw assembly; 251, the clamp block threaded rod; 26, the wiring hole; 3, the protection circuit board; 31, the input end interface; 32, the output end interface; 33, the plugging slider; 34, the ceramic capacitor; 35, the high-precision wound inductance; 36, the grounding line; 4, the output connection cover. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0024] The following will be further described in detail in conjunction with the attached Figures 1-10 drawings to further illustrate the present application.

[0025] A high-performance on-board lightning protector includes a main body 1 of the lightning protector, an input connection cover 2, a protection circuit board 3, and an output connection cover 4. Referring to Figure 1 and Figure 2 , the main body 1 of the lightning protector is a hollow metal shell with openings at both ends, and both the input connection cover 2 and the output connection cover 4 are fixedly connected to both ends of the main body 1 of the lightning protector by bolts; Among them, interface holes 21 are provided in both the input connection cover 2 and the output connection cover 4, and two groups of symmetric joint clamp blocks 211 are provided in the interface hole 21 of the input connection cover 2. A plugging side plate 22 and a clamping side plate 23 are provided on the side of the input connection cover 2 close to the main body 1 of the lightning protector, and the protection circuit board 3 is plugged between the plugging side plate 22 and the clamping side plate 23. Plugging sliders 33 are fixedly connected to both sides of the protection circuit board 3; The main body 1 of the lightning protector is connected to the input end through the interface hole 21 of the input connection cover 2, connected to the output end through the interface hole 21 of the output connection cover 4, and the protection circuit board 3 protects the connected devices from lightning.

[0026] Referring to Figure 1 and Figure 2 as well as Figure 3, both ends of the protection circuit board 3 are respectively welded with an input end interface 31 and an output end interface 32, and the input end interface 31 is inserted into the interface hole 21 of the input connection cover body 2; the output end interface 32 is inserted into the interface hole 21 of the output connection cover body 4. Multiple groups of ceramic capacitors 34, multiple groups of high-precision wound inductors 35 and a grounding line 36 are installed on the protection circuit board 3; the interface at the input end is inserted into the input end interface 31 of the protection circuit board 3, and the interface at the output end is inserted into the output end interface 32 of the protection circuit board 3, thereby completing the circuit connection between the device and the lightning arrester main body 1.

[0027] Refer to Figure 6 , the input end interface 31, the output end interface 32, the ceramic capacitor 34, multiple groups of high-precision wound inductors 35 and the grounding line 36 form a radio frequency path. Multiple groups of high-precision wound inductors 35 and ceramic capacitors 34 are connected in parallel between the input end interface 31 and the output end interface 32, and one or more groups of ceramic capacitors 34 are provided. The grounding line 36 is connected in series between multiple groups of high-precision wound inductors 35, and only a soldermask layer with a thickness of 0.05 mm and a length of 1 mm is retained on the radio frequency path; the radio frequency path formed by the input end interface 31, the output end interface 32, the ceramic capacitor 34, multiple groups of high-precision wound inductors 35 and the grounding line 36 has a stable impedance, and only the soldermask layer retained on the radio frequency path reduces the interference of the soldermask layer on the impedance while fixing the size of the solder joints, and controls the size of the solder joints through the soldermask layer to meet the requirements of high consistency of airborne products. By optimizing the parameter selection of the ceramic capacitor 34 and the high-precision wound inductor 35, their form is changed to be board-mounted, making it small in size, light in weight, and having a high insertion loss in the lightning frequency band to ensure its low residual voltage.

[0028] Refer to Figure 3 and Figure 4 and Figure 5 , two groups of symmetrically arranged limit slots 11 are provided inside the lightning arrester main body 1, and connection blocks 231 that are fitted with the limit slots 11 are provided on the outer sides of the plug-in side plate 22 and the clamping side plate 23, and plug-in connection grooves 232 that are fitted with the plug-in sliders 33 are provided on the inner sides of the plug-in side plate 22 and the clamping side plate 23; the protection circuit board 3 is inserted into the plug-in connection grooves 232 on the inner sides of the plug-in side plate 22 and the clamping side plate 23 through the plug-in sliders 33, thereby completing the connection between the protection circuit board 3 and the input connection cover body 2. The input connection cover body 2 is inserted into the limit slots 11 of the lightning arrester main body 1 through the connection blocks 231 on the outer sides of the plug-in side plate 22 and the clamping side plate 23, and the insertion trajectory of the input connection cover body 2 is limited by the limit slots 11 and the connection blocks 231.

[0029] Refer to Figure 6 and Figure 7, a wiring hole 26 is provided on the input connection cover body 2, and one end of the grounding line 36 is inserted into the wiring hole 26. A clamping plate chute 24 is provided on the side of the input connection cover body 2 close to the lightning arrester main body 1, and the clamping side plate 23 is slidably connected in the clamping plate chute 24; the grounding line 36 passes through the wiring hole 26 and is connected to an external grounding device. The clamping side plate 23 can slide in the clamping plate chute 24 and clamp and fix the protection circuit board 3 with the plug-in side plate 22 during the movement. The plug-in side plate 22 and the input connection cover body 2 are integrally cast, and their internal through holes are interconnected.

[0030] Refer to Figure 3 and Figure 7 , the inside of the plug-in side plate 22 is a hollow structure. A driving runner 221, a worm gear 222 and a worm 223 are arranged in the plug-in side plate 22, and the worm gear 222 and the worm 223 are meshed with each other. One end of the worm 223 is welded with a connecting rotating shaft 224, and a driving bevel gear 225 is connected to the connecting rotating shaft 224 by a spline; both the worm 223 and the connecting rotating shaft 224 are rotatably connected inside the plug-in side plate 22. The driving runner 221 drives the worm gear 222 to rotate, and the worm gear 222 drives the worm 223 to rotate. During the rotation of the worm 223, the driving bevel gear 225 connected thereto rotates together. The helix angle of the worm 223 is greater than 4°38'39", and at the same time, the worm gear 222 and the worm 223 do not have self-locking.

[0031] Refer to Figure 3 and Figure 10 , a screw rod assembly 25 is arranged in the output connection cover body 4, and the screw rod assembly 25 includes two sets of clamping block screw rods 251 with opposite thread directions. Both sets of clamping block screw rods 251 are rotatably connected in the output connection cover body 4. One end of the clamping block screw rod 251 is connected with a clamping block bevel gear 214 meshed with the driving bevel gear 225 by a spline; during the rotation of the driving bevel gear 225, the clamping block bevel gear 214 and the screw rod assembly 25 connected thereto rotate.

[0032] Refer to Figure 8 and Figure 9, the joint clamping block 211 is L-shaped, and one end of the joint clamping block 211 is fixedly connected with a transmission nut seat 212. The transmission nut seat 212 is threadedly connected to the clamping block threaded rod 251. And on a group of joint clamping blocks 211 close to the connecting plug 231, a connecting rod 213 is fixedly connected. One end of the connecting rod 213 passes through the clamping plate chute 24 and inserts into the clamping side plate 23; during the rotation of the screw assembly 25, the two clamping block threaded rods 251 with opposite thread directions drive the respective connected transmission nut seats 212 to move. And the two transmission nut seats 212 and the joint clamping blocks 211 they are connected to move relatively or towards each other, and during the movement, the clamping or loosening action of the input end interface 31 in the interface hole 21 is completed. And during the movement of the joint clamping block 211, the connected clamping side plate 23 is driven to slide through the connecting rod 213.

[0033] Refer to Figure 9 and Figure 10 , the driving runner 221 and the worm gear 222 are coaxially rotatably connected to the inner wall of the plugging side plate 22, and the driving runner 221 is connected in the plugging connection groove 232. One side of the plugging slider 33 is attached to one side of the driving runner 221; the plugging slider 33 on one side of the protection circuit board 3 is plugged into the plugging connection groove 232 and slowly inserted from one end of the plugging connection groove 232. And during the movement of the plugging slider 33, the driving runner 221 is driven to rotate. And when the plugging slider 33 is completely inserted into the plugging connection groove 232, at this time the joint clamping block 211 clamps and fixes the input end interface 31. At the same time, the clamping side plate 23 moves to a position where it fits with the protection circuit board 3. And at this time, the plugging slider 33 on one side of the protection circuit board 3 is buckled into the plugging connection groove 232 of the clamping side plate 23.

[0034] The working process of this application is as follows: First, when using a high-performance on-board lightning protector, the lightning protector main body 1 can be connected to the input end through the interface hole 21 of the input connection cover body 2, and connected to the output end through the interface hole 21 of the output connection cover body 4. And the protection circuit board 3 provides lightning protection for the connected equipment. And the interface at the input end is plugged into the input end interface 31 of the protection circuit board 3, and the interface at the output end is inserted into the output end interface 32 of the protection circuit board 3, so as to complete the circuit connection between the equipment and the lightning protector main body 1. And the grounding line 36 is connected to an external grounding device; When the protection circuit board 3 is damaged, the input connection cover 2 can be removed by bolts at this time. Then, the protection circuit board 3 is taken out from the input connection cover 2, and then the replaced protection circuit board 3 is inserted into the input connection cover 2. First, the grounding line 36 is passed through the wiring hole 26 and pulled out. Then, the plug-in slider 33 on one side of the protection circuit board 3 is plugged into the plug-in connection groove 232 and slowly inserted from one end of the plug-in connection groove 232. During the movement of the plug-in slider 33, the driving runner 221 is driven to rotate, and the driving runner 221 drives the worm gear 222 to rotate, and the worm gear 222 drives the worm 223 to rotate. During the rotation of the worm 223, the driving bevel gear 225 connected thereto rotates together. At the same time, during the rotation of the driving bevel gear 225, the clamping bevel gear 214 and the screw assembly 25 connected thereto rotate. During the rotation of the screw assembly 25, the two sets of clamping block threaded rods 251 with opposite thread directions drive the respective connected transmission nut seats 212 to move, and the two sets of transmission nut seats 212 and the joint clamping blocks 211 connected thereto move relative to each other. At the same time, during the movement of the joint clamping blocks 211, the clamping side plates 23 connected thereto are driven to slide through the connecting rods 213; After the plug-in slider 33 is completely inserted into the plug-in connection groove 232, the joint clamping blocks 211 clamp and fix the input end interface 31 at this time. At the same time, the clamping side plates 23 move to a position where they are in contact with the protection circuit board 3. At this time, the plug-in slider 33 on one side of the protection circuit board 3 is buckled into the plug-in connection groove 232 of the clamping side plates 23. At this time, the fixed connection between the protection circuit board 3 and the input connection cover 2 is completed. Then, the input connection cover 2 is inserted into the limit slot 11 of the lightning arrester main body 1 through the connection plug blocks 231 on the outer sides of the plug-in side plates 22 and the clamping side plates 23. After being completely inserted, the output end interface 32 of the protection circuit board 3 is inserted into the interface hole 21 of the output connection cover 4. At this time, the input connection cover 2 can be tightened in the lightning arrester main body 1 by bolts.

[0035] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-performance on-board lightning protector, comprising a lightning protector main body (1), an input connection cover body (2), a protection circuit board (3), and an output connection cover body (4), characterized in that: The lightning arrester body (1) is a hollow metal shell with openings at both ends, and the input connection cover body (2) and the output connection cover body (4) are both fixedly connected to both ends of the lightning arrester body (1) by bolts; Among them, interface holes (21) are provided in both the input connection cover body (2) and the output connection cover body (4), and two groups of symmetrically arranged joint clamping blocks (211) are provided in the interface hole (21) of the input connection cover body (2). A plug-in side plate (22) and a clamping side plate (23) are provided on the side of the input connection cover body (2) close to the lightning arrester body (1), and the protection circuit board (3) is plugged between the plug-in side plate (22) and the clamping side plate (23). Plug-in sliders (33) are fixedly connected to both sides of the protection circuit board (3).

2. The high-performance on-board lightning protector according to claim 1, wherein: Input end interfaces (31) and output end interfaces (32) are respectively welded to both ends of the protection circuit board (3), and the input end interface (31) is plugged into the interface hole (21) of the input connection cover body (2), and the output end interface (32) is plugged into the interface hole (21) of the output connection cover body (4). Multiple groups of ceramic capacitors (34), multiple groups of high-precision wound inductors (35), and a grounding line (36) are installed on the protection circuit board (3).

3. The high-performance on-board lightning protector according to claim 2, wherein: The input end interface (31), the output end interface (32), the ceramic capacitor (34), multiple groups of high-precision wound inductors (35), and the grounding line (36) form a radio frequency path. Multiple groups of the high-precision wound inductors (35) and the ceramic capacitors (34) are connected in parallel between the input end interface (31) and the output end interface (32), and one or more groups of the ceramic capacitors (34) are provided. The grounding line (36) is connected in series between multiple groups of high-precision wound inductors (35), and only a solder mask layer with a thickness of 0.05 mm and a length of 1 mm is retained on the radio frequency path.

4. The high-performance on-board lightning protector according to claim 3, characterized in that: Two groups of symmetrically arranged limit slots (11) are provided inside the lightning arrester body (1), and connection plugs (231) that are fitted with the limit slots (11) are provided on the outer sides of the plug-in side plate (22) and the clamping side plate (23). Plug-in connection slots (232) that are fitted with the plug-in sliders (33) are provided on the inner sides of the plug-in side plate (22) and the clamping side plate (23).

5. The high-performance on-board lightning protector according to claim 4, wherein: A wiring hole (26) is provided on the input connection cover body (2), and one end of the grounding line (36) is plugged into the wiring hole (26). A clamping plate sliding groove (24) is provided on the side of the input connection cover body (2) close to the lightning arrester body (1), and the clamping side plate (23) is slidably connected in the clamping plate sliding groove (24).

6. The high-performance on-board lightning protector according to claim 5, characterized in that: The inside of the plug-in side plate (22) is a hollow structure. A driving runner (221), a worm gear (222), and a worm (223) are provided inside the plug-in side plate (22), and the worm gear (222) and the worm (223) are meshed with each other. One end of the worm (223) is welded with a connecting rotating shaft (224), and a driving bevel gear (225) is connected to the connecting rotating shaft (224) by a spline.

7. The high-performance on-board lightning arrester according to claim 6, wherein: A screw rod assembly (25) is arranged inside the output connection cover body (4), and the screw rod assembly (25) includes two sets of clamping block screw rods (251) with opposite thread directions. Both sets of the clamping block screw rods (251) are rotatably connected inside the output connection cover body (4). One end of the clamping block screw rod (251) is connected with a clamping block bevel gear (214) meshing with the driving bevel gear (225) through a spline.

8. A high-performance on-board lightning protector according to claim 7, characterized in that: The joint clamping block (211) is L-shaped, and one end of the joint clamping block (211) is fixedly connected with a transmission nut seat (212). The transmission nut seat (212) is threadedly connected to the clamping block screw rod (251). A connecting rod (213) is fixedly connected to the set of joint clamping blocks (211) close to the connecting plug block (231). One end of the connecting rod (213) passes through the clamping plate sliding groove (24) and is inserted into the clamping side plate (23).

9. A high-performance on-board lightning arrester according to claim 6, characterized in that: The driving runner (221) and the worm gear (222) are coaxially and rotatably connected to the inner wall of the plugging side plate (22). The driving runner (221) is connected inside the plugging connection groove (232). One side of the plugging slider (33) is attached to one side of the driving runner (221).

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