Integrated surge protection device

Abstract

The utility model discloses an integrated surge protection device, which relates to the technical field of lightning protection equipment and comprises a surge base and a lightning protection module, and a lower wiring terminal is fixedly mounted at one end in the surge base. According to the utility model, the equipment is composed of the backup protector with the breaking structure and the lightning protection module with the discharge function, the structure part of the backup protector can play a role in not breaking large current and effectively breaking small power frequency current, the surge structure can play a role in discharging lightning current, and through the arrangement of the remote signaling tripping mechanism, the lightning current can be effectively discharged. According to the utility model, the backup and surge are combined, the product integration is high, the volume is reduced, the installation cost is saved, the surge side of the product adopts a plug-in structure, the damaged module is convenient to replace, the backup is used as the front-end backup protection of the surge, the operation is convenient, and the reliability is high. And meanwhile, the device is provided with backup and surge communication remote signaling ports, so that the test and butt joint of products are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection equipment, in particular to an integrated surge protector. Background Art

[0002] Lightning is a violent discharge phenomenon caused by charged clouds to ground buildings and the earth. The strong lightning current can cause serious damage to buildings and equipment. In order to reduce losses, lightning protection devices are now indispensable on low-voltage lines in various industries involved in the electrical industry. Surge protectors (SPDs), also known as lightning protection devices, are electronic devices that provide safety protection for various electronic equipment, instruments and meters, and communication lines. When a spike current or voltage suddenly occurs in an electrical circuit or communication line due to external interference, the SPD can conduct and shunt the current in a very short time, thereby preventing the surge from damaging other equipment in the circuit. According to their working principles, surge protectors (SPDs) can be divided into voltage switching type, voltage limiting type and combination type. Surge protectors made of zinc oxide varistors are installed in large quantities in actual applications, providing great safety guarantees for the normal operation of various electrical equipment in the power network.

[0003] For example, the Chinese patent CN111585263A, "A surge protector," includes a housing, a microswitch, a support frame, a varistor, a discharge tube, a connecting piece, a PCB board, a spring, and a sliding member; the varistor, the connecting piece, and the discharge tube are conductively connected in sequence; the varistor and the connecting piece are soldered to each other via low-temperature solder; the microswitch, the varistor, and the discharge tube are conductively connected to the PCB board; the varistor and the sliding member are both arranged on the support frame; the spring enables the sliding member to abut against the connecting piece, and under the elastic force of the spring, the sliding member abuts against the microswitch; when the low-temperature solder melts, the spring drives the sliding member away from the microswitch.

[0004] However, this also brings other problems. The varistor, the core component of the voltage-limiting SPD, is prone to aging and failure when used for a long time or in a harsh environment. It must be replaced in time, otherwise it may cause a fire and bring greater losses. The technical solution adopted in the current solution is to add a backup protector for tripping, but the additional cost is high and increases the on-site construction cost. To address the above problems, an integrated surge protector is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide an integrated surge protector to solve the problem that the varistor, the core component of the existing voltage-limiting SPD, is prone to aging and failure when used for a long time or in a harsh environment, as proposed in the above background technology, and must be replaced in time, otherwise it may cause a fire and bring greater losses. The technical solution adopted in the current scheme is to add a backup protector for tripping processing, but the additional cost is high and the on-site construction cost is increased.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated surge protector, comprising a surge base and a lightning protection module, wherein a lower wiring terminal is fixedly installed at one end of the interior of the surge base, and an upper wiring terminal is fixedly installed at the other end of the interior of the surge base, the interior of the surge base is plugged into the bottom end of the lightning protection module, and further comprises a remote signal switch and a gas discharge tube, the inner side of the surge base is fixedly connected to the bottom end of the gas discharge tube, one end of the bottom of the surge base is fixedly connected to the outer side of the remote signal switch, and the top internal opening of the surge base is fixedly connected to the bottom end of the gas discharge tube. A cavity is provided, one end of the interior of the cavity is rotatably connected to a switch, and the other end of the interior of the cavity is provided with a tripping mechanism, the top of the gas discharge tube is provided with an inductor coil, the inner side of the surge base is fixedly connected to a micro switch, and one end of the micro switch is provided with a moving contact, one end of the lightning protection module is fixedly connected to contact pin 1, and the other end of the lightning protection module is fixedly connected to contact pin 2, the lightning protection module is electrically connected to the gas discharge tube through contact pin 1, and the lightning protection module is electrically connected to the lower terminal through contact pin 2.

[0007] Preferably, one end of the inductor coil is movably connected to a push rod, and one end of the switch is fixedly connected to a handle.

[0008] Preferably, one end of the upper wiring terminal is fixedly connected to a static contact piece, and one end of the static contact piece is provided with a static contact.

[0009] Preferably, the tripping mechanism includes an assembly plate, a connecting shaft and a tripping bracket, one end of the connecting shaft is fixedly connected to the inner side of the assembly plate, and the other end of the connecting shaft is rotatably mounted to one end of the tripping bracket.

[0010] Preferably, a connector is provided at one end of the trip bracket, a spring is provided at one end of the connecting shaft, and one end of the spring is fixedly connected to an electrode, and the outer side of the assembly plate is fixedly mounted to the inner side of the cavity.

[0011] Preferably, a heat dissipation mechanism is fixedly connected to the outside of the surge base, and the heat dissipation mechanism includes a shell and a thermally conductive silicone strip. Multiple heat dissipation holes are symmetrically and evenly opened at both ends of the shell, and multiple heat sinks are evenly and fixedly connected to one side of the shell.

[0012] Preferably, one end of each of the plurality of heat sinks is fixedly connected to a thermally conductive silicone strip, and protective plates are symmetrically fixedly connected to both ends of the housing.

[0013] Preferably, fixing bolts are symmetrically threaded at both ends of the housing, and the housing is fixedly mounted to the surge base via the fixing bolts.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the present invention, the device consists of a backup protector with a breaking structure and a lightning protection module with a discharge function. Among them, the backup protector structure can play the role of not breaking large currents and effectively breaking small power frequency currents. The surge structure can play the role of discharging lightning currents. The backup front end and the lower end of the SPD are equipped with a remote signal tripping mechanism. When the status of the backup or lightning protection module changes, the change information can be transmitted, which is conducive to remote monitoring of the lightning arrester and the backup protector. The utility model combines the backup and surge into a whole, the product has high integration, reduces the volume, greatly saves space, reduces the number of equipment, reduces the installation process, and saves installation costs. At the same time, the surge side of the product adopts a plug-in structure, which is convenient for replacing the damaged module. The backup serves as the front-end backup protection of the surge, is easy to operate, and can be reused. In addition, with the promotion of intelligent lightning protection products, the requirements for product monitoring are getting higher and higher. This design itself has a backup and surge communication remote signaling port, which is connected to the micro switch through the remote signaling switch to output the micro switch status, which can be used for equipment status monitoring and convenient product testing and docking.

[0016] 2. In the utility model, a heat dissipation mechanism is added, which includes a shell and a thermally conductive silicone strip. A plurality of heat dissipation holes are symmetrically and evenly opened at both ends of the shell, and a plurality of heat dissipation fins are evenly and fixedly connected to one side of the shell. One end of each of the plurality of heat dissipation fins is fixedly connected to the thermally conductive silicone strip. The heat dissipation mechanism is provided with multiple layers of heat dissipation fins around the device elements, and the protection element is tightly connected to the heat dissipation fins through the thermally conductive silicone strips, so that heat can be quickly conducted to the heat dissipation fins. At the same time, a plurality of heat dissipation holes are provided on the shell to form a natural ventilation channel, which further promotes the dissipation of heat. The heat dissipation mechanism adopts efficient heat dissipation materials and reasonable heat dissipation channel design to ensure that heat can be dissipated in a timely and effective manner, thereby improving the working stability and use of the surge protector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the integrated surge protector of the utility model;

[0018] Figure 2 This is a cross-sectional view of the heat dissipation mechanism of the integrated surge protector of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the tripping mechanism of the integrated surge protector of the present invention.

[0020] In the figure: 1. Surge base; 2. Heat dissipation mechanism; 3. Lightning protection module; 4. Lower terminal; 5. Upper terminal; 6. Handle; 7. Inductor; 8. Trip mechanism; 9. Gas discharge tube; 10. Micro switch; 11. Moving contact; 12. Remote signal switch; 13. Cavity; 14. Switch; 15. Static contact piece; 16. Static contact; 17. Push rod; 18. Contact pin 1; 19. Contact pin 2; 21. Housing; 22. Protective plate; 23. Fixing bolt; 24. Heat dissipation hole; 25. Heat sink; 26. Thermal conductive silicone strip; 81. Assembly plate; 82. Connecting shaft; 83. Spring clip; 84. Electrode; 85. Trip bracket; 86. Connector. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 and Figure 3As shown: an integrated surge protector, including a surge base 1 and a lightning protection module 3, a lower wiring terminal 4 is fixedly installed at one end of the interior of the surge base 1, and an upper wiring terminal 5 is fixedly installed at the other end of the interior of the surge base 1, the interior of the surge base 1 is plugged into the bottom end of the lightning protection module 3, and also includes a remote signal switch 12 and a gas discharge tube 9, the inner side of the surge base 1 is fixedly connected to the bottom end of the gas discharge tube 9, and the bottom end of the surge base 1 is fixedly connected to the outer side of the remote signal switch 12, a cavity 13 is opened inside the top of the surge base 1, a switch 14 is rotatably connected to one end of the interior of the cavity 13, and a tripping mechanism 8 is provided at the other end of the interior of the cavity 13, an inductor coil 7 is provided at the top of the gas discharge tube 9, a micro switch 10 is fixedly connected to the inside of the surge base 1, and a moving contact 11 is provided at one end of the micro switch 10, and a contact pin 18 is fixedly connected to one end of the lightning protection module 3, and The other end of the lightning protection module 3 is fixedly connected to contact pin 2 19, the lightning protection module 3 is electrically connected to the gas discharge tube 9 through contact pin 18, and the lightning protection module 3 is electrically connected to the lower terminal 4 through contact pin 2 19, one end of the inductor coil 7 is movably connected to the push rod 17, one end of the switch 14 is fixedly connected to the handle 6, one end of the upper terminal 5 is fixedly connected to the static contact piece 15, and one end of the static contact piece 15 is provided with a static contact 16, the tripping mechanism 8 includes an assembly plate 81, a connecting shaft 82 and a tripping bracket 85, one end of the connecting shaft 82 is fixedly connected to the inner side of the assembly plate 81, and the other end of the connecting shaft 82 is rotatably installed with one end of the tripping bracket 85, one end of the tripping bracket 85 is provided with a connecting piece 86, one end of the connecting shaft 82 is provided with a spring clip 83, and one end of the spring clip 83 is fixedly connected to the electrode 84, and the outer side of the assembly plate 81 is fixedly installed with the inner side of the cavity 13.

[0023] In this embodiment, the device is composed of a backup protector with a breaking structure and a lightning protection module 3 with a discharge function, wherein the backup protector structure can play the role of not breaking large currents and effectively breaking small power frequency currents, and the surge structure can play the role of discharging lightning currents. The backup front end and the lower end of the SPD are provided with a remote signal tripping mechanism 8. When the status of the backup or lightning protection module 3 changes, the change information can be transmitted, which is helpful for remote monitoring of the lightning arrester and the backup protector; the utility model combines the backup and surge into a whole, the product is highly integrated, and the reduction The small size greatly saves space, reduces the number of equipment, shortens the installation process, and saves installation costs. At the same time, the surge side of the product adopts a plug-in structure, which is convenient for replacing the damaged module. The backup serves as the front-end backup protection of the surge, which is easy to operate and can be reused. In addition, with the promotion of intelligent lightning protection products, the monitorable requirements of products are getting higher and higher. This design itself has a backup and surge communication remote signaling port, which is connected to the micro switch 10 through the remote signaling switch 12 to output the status of the micro switch 10, which can be used for equipment status monitoring and convenient product testing and docking.

[0024] Example 2: Figure 1 and Figure 2 As shown, a heat dissipation mechanism 2 is fixedly connected to the outside of the surge base 1, and the heat dissipation mechanism 2 includes a shell 21 and a thermally conductive silicone strip 26. A plurality of heat dissipation holes 24 are symmetrically and evenly opened at both ends of the shell 21, and a plurality of heat sinks 25 are evenly and fixedly connected to one side of the shell 21. One end of the plurality of heat sinks 25 is fixedly connected to the thermally conductive silicone strip 26. A protective plate 22 is symmetrically fixedly connected to both ends of the shell 21. A fixing bolt 23 is symmetrically threadedly connected to both ends of the shell 21, and the shell 21 is fixedly installed to the surge base 1 through the fixing bolt 23.

[0025] In this embodiment, taking into account that the surge protector will generate a large amount of heat during operation, especially when it is subjected to a surge shock, a heat dissipation mechanism 2 is added. The heat dissipation mechanism 2 includes a shell 21 and a thermally conductive silicone strip 26. A plurality of heat dissipation holes 24 are symmetrically and evenly opened at both ends of the shell 21, and a plurality of heat dissipation fins 25 are evenly and fixedly connected to one side of the shell 21. One end of the plurality of heat dissipation fins 25 is fixedly connected to the thermally conductive silicone strip 26. The heat dissipation mechanism 2 is provided with multiple layers of heat dissipation fins 25 around the device elements, and the protection element is tightly connected to the heat dissipation fins 25 through the thermally conductive silicone strip 26, so that heat can be quickly conducted to the heat dissipation fins 25. At the same time, a plurality of heat dissipation holes 24 are provided on the shell 21 to form a natural ventilation channel, which further promotes heat dissipation. The heat dissipation mechanism 2 ensures that heat can be dissipated in a timely and effective manner by adopting efficient heat dissipation materials and a reasonable heat dissipation channel design, thereby improving the working stability and use of the surge protector.

[0026] The device is mainly composed of a surge base 1, a lightning protection module 3, a tripping mechanism 8, a micro switch 10, a switch 14, a remote signal switch 12 and a gas discharge tube 9. The lower terminal 4 is fixedly installed at one end of the surge base 1, and the upper terminal 5 is fixedly installed at the other end of the surge base 1. The lightning protection module 3 is used to discharge the current in the line; the gas discharge tube 9 is used to block the passage of small currents and to discharge large currents at the same time; the lower terminal 4 is used for grounding and serves as a discharge current outlet; the switch 14 is used to adjust the open or closed state of the device; the tripping mechanism 8 serves as the action transmission in the device. The structure is used to transmit the action between the switch 14 and the inductor 7. The inductor 7 contains a push rod 17. When a 50Hz power frequency current of 0.5A or more passes through the circuit, the push rod 17 in the coil will extend out of the cavity. When the switch 14 is closed, the moving contact 11 is closed, and the circuit is conductive. When the switch 14 is opened, the moving contact 11 is opened. The micro switch 10 is used to cooperate with the moving contact 11. The opening or closing of the moving contact 11 can cause the micro switch 10 to open or close. The remote signal switch 12 is used to connect to the micro switch 10 and output the status of the micro switch 10, which can be used for equipment status monitoring. The upper terminal 5 is used to connect the device to the circuit.

[0027] The internal working principle of the device is: when the product is not in use, the moving contact 11 is in a separated state, the product is disconnected from the circuit, and the normally open and normally closed states of the micro switch 10 are normal. When the product switch 14 is closed, the moving contact 11 is in a closed state, and the normally open and normally closed states of the micro switch 10 are flipped. At this time, if it is necessary to monitor the state of the switch 14, it is only necessary to monitor the state of the micro switch 10 transmitted by the remote signal switch 12 at this time; when the equipment is in normal operating state, the current passing through the equipment is extremely small. At this time, the inductance in the inductor coil 7 is very small, and the action rod in the inductor coil 7 will not be driven by the force generated by electromagnetic induction, and will not cause the action of the tripping mechanism 8, and the gas discharge tube 9 will not break down, and the current in the circuit is basically blocked; when the equipment is in a normal large current passing state (lightning strike), the current passing through the equipment is very large. At this time, the impedance in the inductor coil 7 is very large, and the current flowing through the inductor is very small. The inductive force generated by itself is not enough to prompt the action rod to trigger the action of the tripping mechanism 8, and the impact current at this time is sufficient to break down the gas discharge tube 9. The current through the gas discharge tube 9 enters the lightning protection module 3. The two ends of the bottom of the lightning protection module 3 are respectively connected to the contact pin 18 and the contact pin 2 19. At this time, the gas discharge tube 9, the contact pin 1 18, the lightning protection module 3, the contact pin 2 19 and the lower terminal 4 are electrically connected, so that the current is discharged into the ground, playing a role in lightning protection; when the equipment is in the power frequency current passing (lightning strike) state (ampere level), the current passing through the equipment is not large. At this time, the impedance in the inductor coil 7 is small, and the current flowing through the inductor is large. The inductive force generated by the inductor itself may reach a level sufficient to prompt the action rod to trigger the action of the tripping mechanism 8. When the power frequency current is large enough, the tripping mechanism 8 is activated, prompting the switch 14 to be disconnected, the equipment to be disconnected from the line, and the backup protection function of the surge protector is activated;

[0028] The device consists of a backup protector with a breaking structure and a lightning protection module 3 with a current discharge function, wherein the backup protector structure can play the role of not breaking large currents and effectively breaking small power frequency currents, and the surge structure can play the role of discharging lightning currents. The backup front end and the lower end of the SPD are provided with a remote signal tripping mechanism 8. When the status of the backup or lightning protection module 3 changes, the change information can be transmitted, which is helpful for remote monitoring of the lightning arrester and the backup protector; the utility model combines the backup and surge into a whole, the product has high integration, reduces the volume, greatly saves space, reduces the number of equipment, reduces the installation process, and saves installation costs. At the same time, the surge side of the product adopts a plug-in structure, which is convenient for replacing the damaged module. The backup serves as the front-end backup protection of the surge, is easy to operate, and can be reused. In addition, with the promotion of intelligent lightning protection products, the requirements for product monitoring are getting higher and higher. The design itself has a backup and surge communication remote signaling port, which is connected to the micro switch 10 through the remote signaling switch 12 to output the status of the micro switch 10, which can be used for equipment status monitoring and convenient product testing and docking;

[0029] In addition, considering that the surge protector will generate a large amount of heat during operation, especially when it is subjected to a surge shock, a heat dissipation mechanism 2 is added. The heat dissipation mechanism 2 includes a shell 21 and a thermally conductive silicone strip 26. A plurality of heat dissipation holes 24 are symmetrically and evenly opened at both ends of the shell 21, and a plurality of heat dissipation fins 25 are evenly and fixedly connected to one side of the shell 21. One end of the plurality of heat dissipation fins 25 is fixedly connected to the thermally conductive silicone strip 26. The heat dissipation mechanism 2 is provided with multiple layers of heat dissipation fins 25 around the device elements, and the protection elements are tightly connected to the heat dissipation fins 25 through the thermally conductive silicone strip 26, so that heat can be quickly conducted to the heat dissipation fins 25. At the same time, a plurality of heat dissipation holes 24 are provided on the shell 21 to form a natural ventilation channel, which further promotes heat dissipation. The heat dissipation mechanism 2 adopts efficient heat dissipation materials and a reasonable heat dissipation channel design to ensure that heat can be dissipated in a timely and effective manner, thereby improving the working stability and use of the surge protector.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated surge protector, comprising a surge base (1) and a lightning protection module (3), wherein a lower wiring terminal (4) is fixedly mounted on one end of the interior of the surge base (1), and an upper wiring terminal (5) is fixedly mounted on the other end of the interior of the surge base (1), and the interior of the surge base (1) is plugged into the bottom end of the lightning protection module (3), characterized in that: It also includes a remote signal switch (12) and a gas discharge tube (9), the inner side of the surge base (1) is fixedly connected to the bottom end of the gas discharge tube (9), one end of the bottom of the surge base (1) is fixedly connected to the outer side of the remote signal switch (12), a cavity (13) is provided inside the top of the surge base (1), one end of the interior of the cavity (13) is rotatably connected to a switch (14), and the other end of the interior of the cavity (13) is provided with a tripping mechanism (8), and the top of the gas discharge tube (9) is provided with an inductor coil (7), a micro switch (10) is fixedly connected to the inner side of the surge base (1), and a moving contact (11) is provided at one end of the micro switch (10), one end of the lightning protection module (3) is fixedly connected to a contact pin 1 (18), and the other end of the lightning protection module (3) is fixedly connected to a contact pin 2 (19), the lightning protection module (3) is electrically connected to the gas discharge tube (9) through the contact pin 1 (18), and the lightning protection module (3) is electrically connected to the lower terminal (4) through the contact pin 2 (19).

2. The integrated surge protector according to claim 1, characterized in that: One end of the inductor coil (7) is movably connected to a push rod (17), and one end of the switch (14) is fixedly connected to a handle (6).

3. The integrated surge protector according to claim 1, characterized in that: One end of the upper wiring terminal (5) is fixedly connected to a static contact piece (15), and one end of the static contact piece (15) is provided with a static contact (16).

4. The integrated surge protector according to claim 1, characterized in that: The tripping mechanism (8) comprises an assembly plate (81), a connecting shaft (82) and a tripping bracket (85), one end of the connecting shaft (82) is fixedly connected to the inner side of the assembly plate (81), and the other end of the connecting shaft (82) is rotatably mounted to one end of the tripping bracket (85).

5. The integrated surge protector according to claim 4, characterized in that: One end of the trip bracket (85) is provided with a connecting piece (86), one end of the connecting shaft (82) is provided with a spring piece (83), and one end of the spring piece (83) is fixedly connected to an electrode (84), and the outer side of the assembly plate (81) is fixedly mounted to the inner side of the cavity (13).

6. The integrated surge protector according to claim 1, characterized in that: A heat dissipation mechanism (2) is fixedly connected to the outer side of the surge base (1), and the heat dissipation mechanism (2) comprises a shell (21) and a heat-conducting silicone strip (26). A plurality of heat dissipation holes (24) are symmetrically and evenly formed through both ends of the shell (21), and a plurality of heat sinks (25) are evenly and fixedly connected to one side of the shell (21).

7. The integrated surge protector according to claim 6, characterized in that: One end of each of the plurality of heat sinks (25) is fixedly connected to a heat-conducting silicone strip (26), and protective plates (22) are symmetrically fixedly connected to both ends of the housing (21).

8. The integrated surge protector according to claim 6, characterized in that: Two ends of the housing (21) are symmetrically threaded with fixing bolts (23), and the housing (21) is fixedly mounted to the surge base (1) via the fixing bolts (23).

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