Integrated surge protection device

Abstract

The invention discloses an integrated surge protection device, and relates to the technical field of lightning protection equipment, the integrated surge protection device comprises a surge base and a lightning protection module, and one end in the surge base is fixedly provided with a lower wiring terminal. According to the invention, the equipment is composed of a backup protector with a breaking structure and a lightning protection module with a discharge function, the structure part of the backup protector can play a role in not breaking a large current and effectively breaking a small power frequency current, a surge structure can play a role in discharging a lightning current, and a remote signaling tripping mechanism is arranged, so that the lightning protection function is realized. When the state of the backup or lightning protection module changes, change information can be transmitted, backup and surge are combined, the product integration is high, the size is reduced, the installation cost is saved, meanwhile, the surge side of the product is of a plug-in structure, the damaged module can be replaced conveniently, the backup serves as front-end backup protection of the surge, 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 invention 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 of charged clouds to ground buildings and the earth. Strong lightning current can cause serious damage to buildings and equipment. In order to reduce losses, lightning protection devices are indispensable on low-voltage lines in all walks of life involving the electrical industry. Surge protectors (surge protectors), 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 surge protector can conduct and shunt in a very short time, thereby avoiding damage to other equipment in the circuit caused by the surge. 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 practical applications, providing great safety guarantees for the normal operation of various electrical equipment in power networks.

[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 piece; the varistor, the connecting piece and the discharge tube are conductively connected in sequence; the varistor and the connecting piece are soldered to the PCB board by low-temperature solder; the microswitch, the varistor and the discharge tube are conductively connected to the PCB board; the varistor and the sliding piece are both arranged on the support frame; the spring can make the sliding piece abut against the connecting piece, and the sliding piece abuts against the microswitch under the elastic force of the spring; when the low-temperature solder melts, the spring can drive the sliding piece to separate from the microswitch.

[0004] However, it 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 plan is to add a backup protector for tripping, but the additional cost is high and the on-site construction cost is increased. In response to the above problems, an integrated surge protector is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated surge protector to solve the problem that the varistor, the core component of the existing voltage-limiting SPD, proposed in the above background technology, is prone to aging and failure when used for a long time or in a harsh environment, and 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 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 with the bottom end of the lightning protection module, and further comprises a remote signal switch and a gas discharge tube, wherein 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 a surge protector is provided at the top of the surge base. There is a cavity, one end of the cavity is rotatably connected to a switch, and the other end 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 comprises 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 connecting piece is provided at one end of the release 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 outer side of the surge base, and the heat dissipation mechanism 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 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, two ends of the shell are symmetrically threaded with fixing bolts, and the shell is fixedly mounted to the surge base via the fixing bolts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the device is composed of a backup protector with a breaking structure and a lightning protection module with a current discharge function, wherein the backup protector structure part can play the role of large current not being broken and small power frequency current being effectively broken, and the surge structure can play the role of discharging lightning current, and the backup front end and the lower end of the SPD are provided with a remote signal tripping mechanism, and when the state of the backup or lightning protection module changes, the change information can be transmitted, which is helpful for remote monitoring of the lightning arrester and the backup protector. The present invention combines the backup and the surge into a whole, and the product has high integration, reduced 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, and the backup is used as the front-end backup protection of the surge, which is convenient 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 signal port, which is connected to the micro switch through the remote signal switch, and the micro switch state is output, which can be used for equipment status monitoring and convenient for product testing and docking.

[0016] 2. In the present invention, 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 sinks are evenly and fixedly connected to one side of the shell. One end of each of the plurality of heat sinks is fixedly connected to the thermally conductive silicone strip. The heat dissipation mechanism is provided with a plurality of layers of heat sinks around the device elements, and the protection element is tightly connected to the heat sink through the thermally conductive silicone strip, so that heat can be quickly conducted to the heat sink. 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 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the integrated surge protector of the present invention;

[0018] Figure 2 It is a cross-sectional view of the heat dissipation mechanism of the integrated surge protector of the present invention;

[0019] Figure 3 The figure is an internal schematic diagram 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. tripping mechanism; 9. gas discharge tube; 10. micro switch; 11. moving contact; 12. remote signal switch; 13. cavity; 14. switch; 15. static contact sheet; 16. static contact; 17. push rod; 18. contact foot one; 19. contact foot two; 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; 84. electrode; 85. tripping bracket; 86. connecting piece. 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 creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 and Figure 3As shown: an integrated surge protector includes 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 with 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 cavity 13, and a tripping mechanism 8 is arranged at the other end of the cavity 13, an inductor 7 is arranged at the top of the gas discharge tube 9, a micro switch 10 is fixedly connected to the inner side of the surge base 1, and a moving contact 11 is arranged at one end of the micro switch 10, a contact foot 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 the contact pin 2 19, the lightning protection module 3 is electrically connected to the gas discharge tube 9 through the contact pin 18, and the lightning protection module 3 is electrically connected to the lower terminal 4 through the contact pin 2 19, one end of the inductor 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 sheet 15, and one end of the static contact sheet 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 83, and one end of the spring 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 disconnecting structure and a lightning protection module 3 with a current discharge function, wherein the backup protector structure can play the role of not disconnecting large currents and effectively disconnecting 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 state 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 present invention combines the backup and surge into a whole, the product is highly integrated, and the surge is reduced The volume greatly saves space, reduces the number of equipment, reduces the installation process, and saves installation costs. At the same time, the product adopts a plug-in structure on the surge side, 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 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 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] Embodiment 2: Figure 1 and Figure 2 As shown, a heat dissipation mechanism 2 is fixedly connected to the outer side 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, and 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 and fixedly connected to both ends of the shell 21, and fixing bolts 23 are symmetrically threadedly connected to both ends of the shell 21, and the shell 21 is fixedly installed with the surge base 1 through the fixing bolts 23.

[0025] In this embodiment, 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, 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 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 element, and the protection element is tightly connected to the heat dissipation fins 25 through the thermally conductive silicone strip 26, so that the 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 to further promote the dissipation of heat. The heat dissipation mechanism 2 adopts efficient heat dissipation materials and reasonable heat dissipation channel design to ensure that the heat can be dissipated in a timely and effective manner, thereby improving the working stability and use of the surge protector.

[0026] The use method and working principle of the device: 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. A lower terminal 4 is fixedly installed at one end of the surge base 1, and an 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; the lower terminal 4 is used for grounding as a discharge current outlet; the switch 14 is used to adjust the open or closed state of the device; the tripping mechanism 8 is used as the action transmission in the device. The structure is used for transmitting the action between the switch 14 and the inductor 7; the inductor 7 contains a push rod 17 inside, and 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 connected, and 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, and 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 the micro switch 10 and output the state of the micro switch 10, which can be used for equipment status monitoring; the upper terminal 5 is used to connect the equipment to the circuit;

[0027] The internal working principle of the device is as follows: 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. If it is necessary to monitor the state of the switch 14 at this time, 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 cause the action rod to trigger the action of the tripping mechanism 8, and the impact current at this time is enough to break through the gas discharge tube 9, and 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 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, which plays a role in lightning protection; when the equipment is in the state of power frequency current passing (lightning strike) (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 cause 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, causing the switch 14 to be disconnected, and the equipment is disconnected from the line, starting the backup protection of the surge protector;

[0028] The device is composed 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 a large current and effectively breaking a small power frequency current, and the surge structure can play the role of discharging lightning current. The backup front end and the lower end of the SPD are provided with a remote signal tripping mechanism 8. When the state 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 present invention combines the backup and the 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 is used as the front-end backup protection of the surge, which is convenient 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 signal port, which is connected to the micro switch 10 through the remote signal switch 12, and the state of the micro switch 10 is output, which can be used for equipment status monitoring and convenient for 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 a plurality of layers of heat dissipation fins 25 around the device element, and the protection element is tightly connected to the heat dissipation fins 25 through the thermally conductive silicone strip 26, so that the 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 to further promote the dissipation of heat. The heat dissipation mechanism 2 adopts efficient heat dissipation materials and a reasonable heat dissipation channel design to ensure that the 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 protection scope 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 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), 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 comprises 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 cavity (13) is rotatably connected to a switch (14), and a tripping mechanism (8) is provided inside the other end of the cavity (13), and an inductor coil is provided at the top of the gas discharge tube (9). (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), a contact pin 1 (18) is fixedly connected to one end of the lightning protection module (3), and a contact pin 2 (19) is fixedly connected to the other end of the lightning protection module (3), 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 wiring 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 release mechanism (8) comprises an assembly plate (81), a connecting shaft (82) and a release 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 release bracket (85).

5. The integrated surge protector according to claim 4, characterized in that: A connecting piece (86) is provided at one end of the release bracket (85), a spring sheet (83) is provided at one end of the connecting shaft (82), and an electrode (84) is fixedly connected to one end of the spring sheet (83), 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 threadedly connected with fixing bolts (23), and the housing (21) is fixedly mounted to the surge base (1) via the fixing bolts (23).

Images