A high-capacity switching type surge protector

Abstract

The application discloses a large-capacity switching type surge protector, which comprises a shell base, a gap component capacitor protection mechanism and a grafting positioning mechanism are fixedly arranged in the shell base respectively, when lightning weather is encountered, the influence of higher surges exceeds the withstand voltage capacity of the internal equipment, at this time, the capacitor trigger module on the grafting top plate is inserted into the gap space, the porcelain capacitor is adopted for the capacitor trigger module, the withstand voltage capacity of the single capacitor can reach 3KV or more, the Up reaches the protection level requirement, the capacitor device is not damaged during the working of the SPD, the service life of the SPD is effectively prolonged, the voltage protection level is reduced, and the capacitor device is not damaged after being impacted by lightning current for many times, the line board is fixed and limited in four directions, contact failure caused by shaking of the line board contact is avoided, the defective rate during production of the product is reduced, and the product performance is more stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surge protector equipment, in particular to a large-capacity switch type surge protector. BACKGROUND

[0002] The surge protector is also called surge protector or lightning protection device, which is a device for providing safety protection for various electronic devices, instruments, communication lines. When the electrical circuit or communication line suddenly generates a peak current or voltage due to external interference, the surge protector can conduct and shunt in a very short time, limiting the amplitude of the overvoltage within the safe working range of the device, and releasing the surge energy into the ground, thereby avoiding damage to other devices in the circuit caused by the surge. The types and structures of surge protectors are different according to different purposes, but it at least contains a non-linear voltage limiting element. The basic components for lightning protection devices include graphite discharge gap, gas discharge tube, voltage-dependent resistor, suppression diode and choke coil, etc.

[0003] The existing large-capacity switch type surge protector does not have a high-voltage capacitor device for the graphite gap SPD, and the voltage protection level often fails to meet the requirements. Although some new graphite gap SPDs have added capacitor devices, they use MLCC, which has a large capacity but relatively low voltage resistance. When subjected to direct lightning current, the capacitor device may be damaged first. The existing equipment also has a split structure composed of single modules and connected to ground by external busbars. Since it is composed of split modules, the installation or disassembly time is increased during installation, and the inconsistent gap between the modules affects the appearance. On the other hand, the external busbars need to be loosened and pressed against the ground wire during grounding, which is prone to misoperation during product production or installation and use, resulting in the surge protector not working properly.

[0004] Therefore, we propose a large-capacity switch type surge protector to solve the problems mentioned above. SUMMARY

[0005] The present application aims to provide a large-capacity switch type surge protector to solve the problem of the graphite gap SPD not having a high-voltage capacitor device, which has relatively low voltage resistance and may be damaged first when subjected to direct lightning current. By adding a high-voltage capacitor trigger device to the traditional graphite gap, the Up reaches the protection level requirement. The high-voltage capacitor trigger device uses a porcelain capacitor design, and the voltage resistance of a single capacitor can reach more than 3KV, ensuring that the capacitor device will not be damaged during SPD operation and effectively prolonging the service life of the SPD.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A large-capacity switching type surge protector, comprising: a shell base, the inner part of the shell base is respectively fixedly installed with a gap component capacitor protection mechanism and a grafting positioning mechanism;

[0007] The gap component capacitor protection mechanism comprises three divided baffles, the outer walls of the three divided baffles divide the inner part of the shell base into four storage spaces A, and a group of processing outer sleeve plates are movably inserted into the interiors of the four storage spaces A, and the number of each group of processing outer sleeve plates is two, the top of each processing outer sleeve plate is fixedly installed with an insertion strip, the inner walls of each of the eight processing outer sleeve plates are provided with a group of conductive inner rings, the inner walls between every two groups of conductive inner rings are movably inserted with a group of graphite cores, the outer walls between every two processing outer sleeve plates are movably provided with support plates, the outer walls of every four of the eight support plates are provided with a group of round holes on one side, the inner walls of the four groups of round holes are movably inserted with metal insertion rods B, the outer walls of each group of the four groups of metal insertion rods B are movably inserted into the outer walls of another support plate on one side, respectively, the top of each of the two support plates is fixedly installed with a link strip, the opposite sides between each two link strips are provided with a slide, the inner wall size of each slide is matched with the insertion strip, and the outer wall of the insertion strip is movably arranged in the interior of the slide, so that each two processing outer sleeve plates and the conductive inner ring form an integral whole, an interval space is formed for the graphite core in the interior, and the inner walls between each two slides are movably inserted with a link top plate, the top of each of the four link top plates is fixedly inserted with a group of capacitor trigger modules, and the bottom contacts of each of the four groups of capacitor trigger modules penetrate the top of the link top plate and extend into the interior of the interval space.

[0008] Preferably, the grafting positioning mechanism comprises four L-shaped metal plates A, and the inner walls of each of the four L-shaped metal plates A are movably provided with a U-shaped fixing frame A.

[0009] Preferably, one side of the outer wall of each of the four U-shaped fixing frames A is provided with a group of mounting holes A, and the inner walls of each group of mounting holes A are movably inserted with a metal insertion rod A, and the outer walls of each group of the four groups of metal insertion rods A are movably inserted into the outer wall of the link strip on one side, respectively.

[0010] Preferably, the interior of each of the four U-shaped fixing frames A is fixedly provided with a group of input terminal posts, and the top of each of the four U-shaped fixing frames A is fixedly installed at the bottom of the L-shaped metal plate A through a group of screws A.

[0011] Preferably, the top of each of the four U-shaped fixing frames A is movably inserted with a group of movable insertion caps A, and the bottom of each of the four groups of movable insertion caps A penetrates the top of the input terminal post and extends into the interior of the input terminal post.

[0012] Preferably, the outer wall of the other four of the eight support plates is fixedly provided with an L-shaped metal plate B, and the inner part of the four L-shaped metal plates B is provided with a U-shaped fixing frame B.

[0013] Preferably, the inner wall of each of the four U-shaped fixing frames B is fixedly provided with an output terminal post, the top of the four U-shaped fixing frames B is fixedly provided on the bottom of the L-shaped metal plate B through a group of screws B, and the top of the four U-shaped fixing frames B is movably provided with a movable plug cap B.

[0014] Preferably, the bottom of the four movable plug caps B penetrates the top of the output terminal post and extends into the interior of the output terminal post, and a grounding bus bar plate is fixedly arranged between the outer walls of the four movable plug caps B.

[0015] Preferably, the top of the shell base is movably provided with a shell cover, the top of the shell cover is provided with four groups of windows A and one group of windows B, the outer wall of the shell cover is provided with wire inlet holes equal in number to the input terminal posts, the bottom of the shell base is fixedly provided with four supporting legs, the inner wall of the shell base is fixedly provided with a group of limiting baffle plates, each group of limiting baffle plates divides the interior of the shell base into eight storage spaces B, and the outer wall of the shell base is provided with a grounding outlet hole.

[0016] Preferably, the four L-shaped metal plates A are fixedly arranged on the outer wall of the four support plates.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] 1. When lightning weather is encountered, the device is affected by a higher surge that exceeds the internal pressure resistance of the device, at this time, the capacitor trigger module on the connecting top plate is inserted into the gap space, the porcelain capacitor is used for the capacitor trigger module, the voltage resistance of a single capacitor can reach 3KV or above, so that the Up reaches the protection level requirement, ensures that the capacitor device will not be damaged during the SPD operation, effectively prolongs the service life of the SPD, reduces the voltage protection level, and the capacitor device is not damaged after being impacted by lightning current for many times.

[0019] 2. The graphite core placed in the gap space formed by the mutual connection of the support plate and the processing sleeve plate is fixed, fully contacts the conductive inner ring in the inner wall of the processing sleeve plate, and is prevented from shaking during the working process, the four-orientation fixing and limiting of the circuit board is adopted, contact failure caused by shaking of the circuit board is avoided, the product yield during production is reduced, and the product performance is more stable.

[0020] 3、The present application is by using the split baffle and limit baffle will be divided into a plurality of shell base inside the storage space A and storage space B, and then a single SPD and wiring structure integration, and solved the existing equipment is mostly split structure by a single module combination, so that the gap between the modules is not uniform affect the problem of appearance, using an integral shell, reducing the installation and disassembly time, and thus reducing the production process, improve the production of products, reduce the time required for user installation or replacement disassembly;

[0021] 4、The present application is by accessing the internal wire of one of the output terminal post, in the ground from the shell base on the independent existence of the grounding outlet hole, and the wall inside the grounding iron plate connection, make the current to the ground, by installing the grounding bus bar plate in the SPD, and only one grounding outlet hole is set up on the outer wall of the shell base, avoid the possibility of misoperation. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a main view structure perspective view of a large-capacity switch type surge protector of the present application;

[0023] Figure 2 It is an equipment body explosion decomposition perspective view of a large-capacity switch type surge protector of the present application;

[0024] Figure 3 It is a layered perspective view of the main body structure of a large-capacity switch type surge protector of the present application;

[0025] Figure 4 It is a perspective view of the internal structure of the shell base of a large-capacity switch type surge protector of the present application;

[0026] Figure 5 It is a single gap component structure decomposition perspective view of a large-capacity switch type surge protector of the present application;

[0027] Figure 6 It is a side view structure schematic diagram of a large-capacity switch type surge protector of the present application;

[0028] Figure 7 It is a top view structure schematic diagram of a large-capacity switch type surge protector of the present application;

[0029] Figure 8 It is a half side structure schematic diagram of a large-capacity switch type surge protector of the present application.

[0030] As shown in the figure, 1 is the shell base, 21 is the partition baffle, 22 is the support plate, 23 is the connecting strip, 24 is the graphite core, 25 is the processing cover plate, 26 is the conductive inner ring, 27 is the connecting top plate, 28 is the capacitor trigger module, 31 is the L-shaped metal plate A, 32 is the input terminal post, 33 is the U-shaped fixing frame A, 34 is the metal insertion rod A, 35 is the movable insertion cap A, 36 is the L-shaped metal plate B, 37 is the output terminal post, 38 is the U-shaped fixing frame B, 39 is the movable insertion cap B, 310 is the grounding bus bar plate, 4 is the metal insertion rod B, 5 is the shell cover, 6 is the window A, 7 is the window B, 8 is the grounding outlet hole, 9 is the supporting leg, 10 is the inlet hole, and 11 is the limiting baffle. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only 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 labor fall within the scope of protection of the present application.

[0032] Please refer to Figures 1-8 As shown in the figure, the present application provides a technical solution: a large-capacity switching type surge protector, comprising: a shell base 1, and a gap component capacitor protection mechanism and a grafting positioning mechanism are respectively fixedly installed in the shell base 1.

[0033] According to Figures 1-8As shown, the gap assembly capacitor protection mechanism includes three dividing baffles 21. The outer walls of the three dividing baffles 21 divide the interior of the housing base 1 into four storage spaces A. Each of the four storage spaces A has a set of processing outer plates 25 movably inserted, and each set of processing outer plates 25 consists of two plates. Each processing outer plate 25 has a strip fixedly installed on its top. Each of the eight processing outer plates 25 has a set of conductive inner rings 26 on its inner surface wall. A movably inserted strip is located between the inner surfaces of every two sets of conductive inner rings 26. A set of graphite cores 24, with a support plate 22 movably installed between the outer walls of every two processing outer jacket plates 25. Each set of four support plates 22 has a set of circular holes on one side of their outer walls. Metal rods B4 are movably inserted into the inner surface of each of the four sets of circular holes. The outer surface of each of the four sets of metal rods B4 is movably inserted into one side of the outer wall of another support plate 22. A connecting strip 23 is fixedly installed on the top of every two support plates 22. A slide is provided between the opposite sides of every two connecting strips 23, and the inner surface of each slide... The wall dimensions are all adapted to the insert strip, and the outer wall of the insert strip is movably set inside the slide rail, so that every two processing outer plates 25 and conductive inner rings 26 form a whole, forming a space between the internal graphite core 24. A connecting top plate 27 is movably inserted between the inner surface walls of every two slide rails. Each of the four connecting top plates 27 has a set of capacitor trigger modules 28 fixedly inserted at its top. The bottom contacts of each of the four sets of capacitor trigger modules 28 penetrate through the top of the connecting top plate 27 and extend into the space. Inside, the top of the outer casing base 1 is movably fitted with an outer casing cover 5. The top of the outer casing cover 5 has four sets of viewing windows A6 and one set of viewing windows B7. One side of the outer wall of the outer casing cover 5 has an inlet hole 10 equal in number to the input terminal block 32. The bottom of the outer casing base 1 is fixedly installed with four support legs 9. The bottom of the inner wall of the outer casing base 1 is fixedly installed with a set of limiting baffles 11, and each set of limiting baffles 11 divides the interior of the outer casing base 1 into eight storage spaces B. One side of the outer wall of the outer casing base 1 has a grounding outlet hole 8.

[0034] The effect achieved by the entire gap component capacitor protection mechanism is as follows: First, the equipment is installed in the designated working area. The wire is connected in series through the inlet hole 10 on the outer cover 5 to the inside of the outer base 1 and connected to the input terminal 32 in the U-shaped fixing bracket A33. The wiring inside the outer base 1 is observed through the viewing window A6 on the outer cover 5 to prevent the wiring from falling off or being connected incorrectly. Then, the inside of the processing outer plate 25 is energized so that it contacts the surface wall of the graphite core 24. The graphite core 24 is fixed in the gap space formed by the interconnection between the support plate 22 and the processing outer plate 25, and it fully contacts the conductive inner ring 26 in the inner wall of the processing outer plate 25 to prevent shaking during operation. By using a circuit board... Four-way fixed limiters prevent poor contact caused by the shaking of the circuit board contacts, reducing the defect rate during product production; making the product performance more stable. When the current flows into the gap space, the surge energy generated by the normal current can be released. When encountering thunderstorms, if the impact of high surges exceeds the internal withstand voltage capacity of the equipment, the capacitor trigger module 28 on the top plate 27 is inserted into the gap space. By using ceramic capacitors for the capacitor trigger module 28, the voltage withstand capacity of a single capacitor can reach more than 3KV, enabling the Up to meet the protection level requirements. When the SPD is working, the capacitor device will not be damaged, which can effectively extend the service life of the SPD, reduce the voltage protection level, and ensure that the capacitor device is not damaged after multiple lightning current impacts.

[0035] according to Figures 2-5As shown, the grafting positioning mechanism includes four L-shaped metal plates A31. Each L-shaped metal plate A31 has a U-shaped fixing bracket A33 movably mounted on its inner wall. Each of the four U-shaped fixing brackets A33 has a set of mounting holes A on one side of its outer wall. A metal rod A34 is movably inserted into the inner wall of each mounting hole A. The outer wall of each of the four sets of metal rods A34 is movably inserted into one side of the outer wall of the connecting strip 23. Each of the four U-shaped fixing brackets A33 has a set of input terminals 32 fixed inside. The top of each of the four U-shaped fixing brackets A33 is fixed to the bottom of the L-shaped metal plate A31 by a set of screws A. Each of the four U-shaped fixing brackets A33 has a set of movable caps A35 movably inserted into its top. The bottom of each of the four movable caps A35 penetrates the top of the input terminal 32 and extends... Extending into the interior of the input terminal 32, four of the eight support plates 22 have L-shaped metal plates B36 fixedly installed on one side of their outer walls. Each of the four L-shaped metal plates B36 has a U-shaped fixing bracket B38 inside. Each of the four U-shaped fixing brackets B38 has an output terminal 37 fixedly installed at the bottom of its inner wall. The tops of the four U-shaped fixing brackets B38 are fixedly installed at the bottom of the L-shaped metal plate B36 by a set of screws B. Each of the four U-shaped fixing brackets B38 has a movable plug B39 movably inserted into its top. The bottoms of the four movable plugs B39 penetrate the top of the output terminal 37 and extend into the interior of the output terminal 37. A grounding busbar 310 is fixedly fitted between the outer walls of the four movable plugs B39. Four L-shaped metal plates A31 are fixedly installed on one side of the outer wall of four of the support plates 22.

[0036] The overall effect of the grafting and positioning mechanism is as follows: When carrying the internal components of the equipment, the dividing baffle 21 and the limiting baffle 11 divide the interior of the outer shell base 1 into multiple storage spaces A and B, thereby integrating and mounting the SPD and wiring structure. This solves the problem that existing equipment often uses a split structure composed of single-piece modules, resulting in inconsistent gaps between modules that affect aesthetics. By adopting an integrated shell, the installation and disassembly time is reduced, thereby shortening the production process and increasing the production volume. It also reduces the time required for users to install or replace / disassemble the equipment. When connecting external lines, the output end of the wire is plugged into the input terminal 32. Inside the SPD, press the movable cap A35 on the input terminal 32 to fix the contact. After the SPD processes the surge voltage, it is transmitted to the inside of the four output terminals 37. The grounding busbar 310 on the output terminal 37 gathers the current into the inside of a single output terminal 37. By connecting a wire to the inside of one of the output terminals 37, the wire passes through the grounding outlet hole 8 that exists independently on the outer casing base 1 and connects to the grounding plate inside the wall, so that the current is conducted to the ground. By installing the grounding busbar 310 inside the SPD and opening only one grounding outlet hole 8 on the outer wall of the outer casing base 1, the possibility of misoperation is avoided.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-capacity switching surge protector, characterized in that: include: The outer shell base (1) is equipped with a gap component capacitor protection mechanism and a grafting positioning mechanism, respectively. The gap assembly capacitor protection mechanism includes three dividing baffles (21). The outer walls of the three dividing baffles (21) divide the interior of the outer shell base (1) into four storage spaces A. Each of the four storage spaces A has a set of processing outer plates (25) movably inserted. Each set of processing outer plates (25) has two plates. Each processing outer plate (25) has a fixed insert on its top. Each of the eight processing outer plates (25) has a set of conductive inner rings (26) on its inner wall. A set of graphite cores (24) is movably inserted between the inner walls of every two sets of conductive inner rings (26). A support plate (22) is movably arranged between the two sides of the outer walls of every two processing outer plates (25). Each of the eight support plates (22) has a set of round holes on one side of the outer wall of every four sets of round holes. A metal insert B (4) is movably inserted into the inner wall of each of the four sets of round holes. The outer wall of each of the four sets of metal inserts B (4) is movably inserted into one side of the outer wall of another support plate (22). A connecting strip (23) is fixedly installed on the top of each pair of support plates (22). A slide is opened between the opposite sides of each pair of connecting strips (23), and the inner wall size of each slide is adapted to the insert. The outer wall of the insert is movably set inside the slide, so that each pair of processing outer plates (25) and conductive inner rings (26) form a whole, forming a space between the graphite core (24) inside. A connecting top plate (27) is movably inserted between the inner surface walls of each pair of slides. A set of capacitor trigger modules (28) is fixedly inserted on the top of each of the four sets of capacitor trigger modules (28). The bottom contact of each of the four sets of capacitor trigger modules (28) penetrates the top of the connecting top plate (27) and extends into the interior of the space.

2. The high-capacity switching surge protector according to claim 1, characterized in that: The grafting positioning mechanism includes four L-shaped metal plates A (31), and each of the four L-shaped metal plates A (31) has a U-shaped fixing frame A (33) movably arranged on its inner surface wall.

3. The high-capacity switching surge protector according to claim 2, characterized in that: Each of the four U-shaped fixing brackets A (33) has a set of mounting holes A on one side of its outer wall, and a metal rod A (34) is movably inserted into the inner surface of each set of mounting holes A. The outer surface of each of the four sets of metal rods A (34) is movably inserted into one side of the outer wall of the connecting strip (23).

4. The high-capacity switching surge protector according to claim 2, characterized in that: Each of the four U-shaped fixing brackets A (33) has a set of input terminals (32) fixedly installed inside. The top of each of the four U-shaped fixing brackets A (33) is fixedly installed on the bottom of the L-shaped metal plate A (31) by a set of screws A.

5. The high-capacity switching surge protector according to claim 2, characterized in that: Each of the four U-shaped fixing brackets A (33) has a set of movable plugs A (35) inserted into its top. The bottom of each of the four sets of movable plugs A (35) passes through the top of the input terminal (32) and extends into the interior of the input terminal (32).

6. The high-capacity switching surge protector according to claim 1, characterized in that: Of the eight support plates (22), four of them have an L-shaped metal plate B (36) fixedly installed on one side of their outer wall, and each of the four L-shaped metal plates B (36) has a U-shaped fixing frame B (38) inside.

7. The high-capacity switching surge protector according to claim 6, characterized in that: Each of the four U-shaped fixing brackets B (38) has an output terminal (37) fixedly installed on the bottom of its inner wall. The top of each of the four U-shaped fixing brackets B (38) is fixedly installed on the bottom of the L-shaped metal plate B (36) by a set of screws B. The top of each of the four U-shaped fixing brackets B (38) is movably inserted with a movable plug B (39).

8. The high-capacity switching surge protector according to claim 7, characterized in that: The bottom of each of the four movable plugs B (39) passes through the top of the output terminal (37) and extends into the interior of the output terminal (37). A grounding busbar (310) is fixedly fitted between the outer walls of the four movable plugs B (39).

9. The high-capacity switching surge protector according to claim 1, characterized in that: The top of the outer casing base (1) is equipped with an outer casing cover (5). The top of the outer casing cover (5) is provided with four sets of viewing windows A (6) and one set of viewing windows B (7). The outer wall of the outer casing cover (5) is provided with an inlet hole (10) equal to the number of input terminals (32). The bottom of the outer casing base (1) is fixedly installed with four support legs (9). The bottom of the inner wall of the outer casing base (1) is fixedly installed with a set of limiting baffles (11). Each set of limiting baffles (11) divides the interior of the outer casing base (1) into eight storage spaces B. The outer wall of the outer casing base (1) is provided with a grounding outlet hole (8).

10. The high-capacity switching surge protector according to claim 2, characterized in that: The four L-shaped metal plates A (31) are respectively fixedly installed on one side of the outer wall of the four support plates (22).

Images