A surge protector with backup protection device

Abstract

The present invention discloses a surge protector with a backup protection device, comprising a plurality of shells, wherein connectors are symmetrically arranged in the shells, wherein connecting wires are arranged in the shells, wherein a conductive rod is arranged between the right connector and the connecting wires, wherein a mounting block is fixedly connected to the shells, wherein a pressure rod is inserted through the mounting block and the shells together for sliding, wherein a limiting mechanism is arranged in the mounting block, wherein a lifting mechanism is arranged on the pressure rod, wherein a hollow rod is fixedly connected to the pressure rod, wherein a permanent magnet is fixedly connected to one end of the pressure rod away from the mounting block, wherein an electromagnet is arranged on the mounting plate, and a conductive column is fixedly inserted through the hollow rod. The present invention presses the pressure rod downwards, causing the annular plate to move downwards to below the annular rubber pad, and when the circuit in the shell is normal, the pressure rod moves upwards to reset, and when the circuit in the shell is damaged, the pressure rod cannot be driven to reset, thereby determining whether the circuit in the shell is normal.

Description

Technical Field

[0001] The present invention relates to the technical field of surge protectors, in particular to a surge protector with a backup protection device. Background Art

[0002] The backup protector is an electrical device used in series with the surge protector. When the series circuit is subjected to five ranges of lightning electromagnetic pulse current impact, namely 8 / 20μs (1~40)kA, (40~80)kA, (80~100)kA, and 10 / 350μs: 15kA25kA, the backup protector shall not be disconnected or malfunction. When the surge protector is subjected to lightning electromagnetic pulse current, temporary overvoltage (TOV) fault caused by low-voltage system fault in the power supply and distribution system, transient overvoltage (TOV) fault caused by high (medium) voltage system fault or operating overvoltage, and is damaged by degradation, breakdown, short circuit, etc., and the power frequency current passing through the backup protector is greater than 0.8A, the backup protector shall be quickly disconnected, and the surge protector shall be disconnected from the power distribution system, effectively avoiding serious accidents such as fire and bus tripping caused by surge protector failure.

[0003] After the existing backup protector has been used for a period of time, in order to ensure the normal use of the backup protector, the staff needs to disassemble it to check its internal circuits to see if there is any damage. The operation is relatively cumbersome, and blind disassembly and maintenance increases the workload of the staff and reduces work efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the defect in the prior art that "after the existing backup protector has been used for a period of time, in order to ensure the normal use of the backup protector, the staff needs to disassemble it to check the internal circuit to see if it is damaged, the operation is relatively cumbersome, and the blind disassembly and maintenance increases the workload of the staff and the work efficiency is low", thereby proposing a surge protector with a backup protection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A surge protector with a backup protection device comprises several shells, wherein connectors are symmetrically arranged in the shells, connecting electrical wires are arranged in the shells, a conductive rod is arranged between the right connector and the connecting electrical wires, a mounting block is fixedly connected to the shell, a pressure rod is inserted through the mounting block and the shell for sliding together, a limiting mechanism is provided in the mounting block, a lifting mechanism is provided on the pressure rod, a hollow rod is fixedly connected to the pressure rod, a permanent magnet is fixedly connected to the end of the pressure rod away from the mounting block, a mounting plate is fixedly connected in the hollow rod, an electromagnet is provided on the mounting plate, a conductive column is fixedly inserted through the hollow rod, and several surge protector device bodies are provided on one side of the shell.

[0007] Preferably, the limiting mechanism includes an annular plate and an annular rubber pad, an annular groove is provided in the mounting block, the annular rubber pad is fixedly connected to the inner wall of the annular groove, and the annular plate is fixedly connected to the pressure rod.

[0008] Preferably, the lifting mechanism includes a fixed plate and a spring, the fixed plate is fixedly connected to the pressure rod, and the spring is fixedly connected between the inner wall of the shell and the fixed plate.

[0009] Preferably, a first annular inclined surface is symmetrically provided on the annular plate, and a second annular inclined surface is symmetrically provided on the annular rubber pad.

[0010] Preferably, a first wire passing plate and a second wire passing plate are symmetrically provided on both sides of the shell and the surge protector device body.

[0011] Preferably, the conductive rod is made of copper.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. When it is necessary to inspect the internal circuit of the backup protection device, press the pressure rod downward to move the annular plate downward to under the annular rubber pad, so that the hollow rod moves downward, driving the conductive column to move downward, so that the conductive column contacts the conductive rod. When the circuit in the shell is normal, the conductive column is energized, so that the electromagnet is energized, so that the top of the electromagnet generates a magnetic pole, and the permanent magnet moves upward through the principle of like poles repelling each other, driving the pressure rod to move upward for reset. When the circuit in the shell is damaged, the conductive column and the conductive rod are not in contact and energized, and the electromagnet has no magnetic pole and cannot drive the pressure rod to reset. In this way, it can be determined whether the circuit in the shell is normal. The operation is simple and convenient, and there is no need for blind disassembly and maintenance, which reduces the workload of the staff and improves work efficiency.

[0014] 2. When the device is connected to the shell and the surge protector device body through the wire, the wire can be placed in the first wire plate and the second wire plate to avoid the wire being exposed, thereby improving the aesthetics of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of a surge protector with a backup protection device proposed by the present invention;

[0016] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0017] Figure 3 for Figure 1 Top view of .

[0018] In the figure: 1 housing, 2 connector, 3 connecting wire, 4 conductive rod, 5 mounting block, 6 pressure rod, 7 annular plate, 8 annular groove, 9 annular rubber pad, 10 fixing plate, 11 spring, 12 hollow rod, 13 permanent magnet, 14 mounting plate, 15 electromagnet, 16 conductive column, 17 first wire plate, 18 surge protector device body. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] Reference Figure 1-3 , a surge protector with backup protection device, including several shells 1, connectors 2 are symmetrically provided in the shell 1, and connecting electrical wires 3 are provided in the shell 1. A conductive rod 4 is provided between the right connector 2 and the connecting electrical wire 3. The conductive rod 4 is made of metal copper, so that the device can conduct electricity through the conductive rod 4. A mounting block 5 is fixedly connected to the shell 1, and a pressure rod 6 is inserted through the mounting block 5 and the shell 1 to slide together. A limiting mechanism is provided in the mounting block 5. The limiting mechanism includes an annular plate 7 and an annular rubber pad 9. An annular groove 8 is provided in the mounting block 5. The annular rubber pad 9 is fixedly connected to the inner wall of the annular groove 8. The annular plate 7 is fixedly connected to the pressure rod 6, so that when the annular plate 7 moves downward with the pressure rod 6 to the bottom of the annular rubber pad 9, the annular rubber pad 9 blocks and limits the annular plate 7. A first annular inclined surface is symmetrically provided on the annular plate 7, and a second annular inclined surface is symmetrically provided on the annular rubber pad 9, so that when the annular rubber pad 9 is subjected to sufficient extrusion force from the annular plate 7, it is easier to pass through the obstruction of the annular rubber pad 9.

[0022] The pressure rod 6 is provided with a lifting mechanism, which includes a fixing plate 10 and a spring 11. The fixing plate 10 is fixedly connected to the pressure rod 6, and the spring 11 is fixedly connected between the inner wall of the shell 1 and the fixing plate 10, so that the device can lift the pressure rod 6 by the spring 11 in the normal state to prevent the pressure rod 6 from moving downward under the action of gravity. A hollow rod 12 is fixedly connected to the pressure rod 6, and a permanent magnet 13 is fixedly connected to the end of the pressure rod 6 away from the mounting block 5. A mounting plate 14 is fixedly connected in the hollow rod 12, and a mounting plate 14 is provided on the mounting plate 14. There is an electromagnet 15, the bottom magnetic pole of the permanent magnet 13 is the same as the top magnetic pole of the electromagnet 15 after power is applied, a conductive column 16 is fixedly inserted into the hollow rod 12, and the conductive column 16 is electrically connected to the electromagnet 15. Several surge protector device bodies 18 are provided on one side of the shell 1, and the first wire plate 17 and the second wire plate are symmetrically provided on both sides of the shell 1 and the surge protector device body 18, so that the connecting line between the shell 1 and the surge protector device body 18 can be placed in the first wire plate 17 and the second wire plate, thereby improving the aesthetics of the device.

[0023] In the present invention, when the user uses the device, he presses the pressure rod 6 downward, so that the annular plate 7 moves downward to below the annular rubber pad 9, so that the hollow rod 12 moves downward, driving the conductive column 16 to move downward, so that the conductive column 16 contacts the conductive rod 4. When the circuit in the shell 1 is normal, the conductive column 16 is energized, so that the electromagnet 15 is energized, so that the top of the electromagnet 15 generates a magnetic pole, and the permanent magnet 13 moves upward due to the principle of like poles repelling each other, driving the pressure rod 6 to move upward for reset. When the circuit in the shell 1 is damaged, the conductive column 16 contacts the conductive rod 4 and is not energized. The electromagnet 15 has no magnetic pole and cannot drive the pressure rod 6 to reset. In this way, it can be determined whether the circuit in the shell 1 is normal, and the operation is simple and convenient.

[0024] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A surge protector with a backup protection device, comprising a plurality of housings (1), characterized in that: A connector (2) is symmetrically provided in the shell (1), a connecting electric wire (3) is provided in the shell (1), a conductive rod (4) is provided between the connector (2) and the connecting electric wire (3) on the right side, a mounting block (5) is fixedly connected to the shell (1), a pressure rod (6) is inserted and slidably inserted through the mounting block (5) and the shell (1), a limiting mechanism is provided in the mounting block (5), and a lifting mechanism is provided on the pressure rod (6); The pressure rod (6) is fixedly connected to a hollow rod (12), and a permanent magnet (13) is fixedly connected to one end of the pressure rod (6) away from the mounting block (5). A mounting plate (14) is fixedly connected inside the hollow rod (12), and an electromagnet (15) is provided on the mounting plate (14). A conductive column (16) is fixedly inserted into the hollow rod (12), and a plurality of surge protector device bodies (18) are provided on one side of the housing (1); The limiting mechanism comprises an annular plate (7) and an annular rubber pad (9), the annular plate (7) is symmetrically provided with a first annular inclined surface, the annular rubber pad (9) is symmetrically provided with a second annular inclined surface, an annular groove (8) is provided in the mounting block (5), the annular rubber pad (9) is fixedly connected to the inner wall of the annular groove (8), and the annular plate (7) is fixedly connected to the pressure rod (6); The lifting mechanism comprises a fixed plate (10) and a spring (11), wherein the fixed plate (10) is fixedly connected to the pressure rod (6), and the spring (11) is fixedly connected between the inner wall of the housing (1) and the fixed plate (10).

2. A surge protector with backup protection device according to claim 1, characterized in that: A first wire plate (17) and a second wire plate are symmetrically provided on both sides of the housing (1) and the surge protector device body (18).

3. The surge protector with backup protection device according to claim 1, characterized in that: The conductive rod (4) is made of copper.

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