Signal surge protection device

Abstract

The utility model relates to the technical field of surge protectors, in particular to a signal surge protector. Comprising a base, one side of the base is provided with a cover plate, and the base and the cover plate form a mounting cavity; the circuit board is arranged in the mounting cavity; the wiring clamping plate is arranged in the mounting cavity and is electrically connected with the circuit board; one end of the wiring clamp spring is connected to the wiring clamp plate, and a mounting gap is formed between the other end of the wiring clamp spring and the wiring clamp plate; the wire mounting hole and the guide mounting hole are formed in one side of the base and correspond to the mounting gap in position; the wiring key is installed on the installation base in a sliding mode, one end of the wiring key abuts against the other end of the wiring clamping spring, and when the wiring key is pressed, the installation gap can be enlarged; according to the utility model, through the above structure, the shielding wire can be rapidly mounted or dismounted, and the operation is simpler and more convenient than the operation through screw fixation in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of surge protectors, in particular to a signal surge protector. Background Art

[0002] In today's era of widespread use of electronic devices, signal surge protectors play a vital role in ensuring the stable operation of various devices. With the rapid development of modern electronic technology, various electronic devices and large-scale integrated circuits are widely used in many fields, including industry, communications, and data centers. For example, computers and microelectronic devices have become indispensable in industrial sites. However, these microelectronic devices have low operating voltages, low power consumption, and extremely limited overvoltage tolerance.

[0003] In complex working environments, such as industrial sites, equipment is extremely susceptible to various interference factors. Electromagnetic field interference, lightning electromagnetic pulses, and electric sparks can all induce overvoltages in signal transmission cables. These overvoltages are extremely dangerous, potentially causing not only malfunctions in electronic equipment systems but also permanent damage, resulting in significant direct and indirect economic losses. Lightning overvoltages, in particular, can damage the signal processing circuits of industrial control equipment, leading to equipment downtime. In areas such as data centers, rail transit, and petrochemical production, the resulting economic losses and safety risks are immeasurable.

[0004] At present, in signal surge protectors, the installation and removal methods of shielding wires are key factors affecting their ease of use. Most existing technologies use screw fixing to connect shielding wires, which has many disadvantages in actual operation. When installing shielding wires, operators need to use tools such as screwdrivers to tighten the screws one by one. The operation steps are cumbersome and time-consuming, especially when a large number of shielding wires need to be installed. The installation efficiency is extremely low. When disassembling the shielding wires, tools are also needed to loosen the screws. If the screws are rusted or difficult to turn for other reasons, it will increase the difficulty of disassembly and may even damage the equipment. Therefore, there is an urgent need to develop a signal surge protector that can quickly install or disassemble shielding wires. Utility Model Content

[0005] The purpose of the utility model is to provide a signal surge protector that is easier to connect to the circuit in order to solve the above-mentioned technical problems.

[0006] In view of this, the present invention provides a signal surge protector, comprising:

[0007] A base, with a cover plate installed on one side of the base, and the base and the cover plate forming a mounting cavity;

[0008] A circuit board is arranged in the mounting cavity;

[0009] A wiring card board is arranged in the mounting cavity and is electrically connected to the circuit board;

[0010] Wiring clamp spring, one end of the wiring clamp spring is connected to the wiring card plate, and an installation gap is formed between the other end and the wiring card plate;

[0011] The wire mounting hole and guide mounting hole are on one side of the base, and their positions correspond to the mounting gap.

[0012] The wiring button is slidably mounted on the mounting base, and one end thereof abuts against the other end of the wiring clamp spring. When the wiring button is pressed, the mounting gap can be expanded.

[0013] Furthermore, the wiring card plate includes a left wiring card plate and a right wiring card plate, and multiple groups are provided.

[0014] Furthermore, the wiring card board includes:

[0015] An installation baffle is installed, and an installation gap is formed between the installation baffle and the wiring clamp spring. A guide surface 1 is provided at one end of the installation baffle close to the wire installation hole, and a guide surface 2 is provided on the side of the end of the wiring clamp spring close to the wire installation hole. The guide surface 1 and the guide surface 2 form a V-shaped guide groove.

[0016] Furthermore, a retaining spring limit block is provided in the installation cavity, and the middle position of the wiring retaining spring includes a U-shaped portion, which is sleeved on the retaining spring limit block. The wiring card plate includes a resistance baffle, which resists one end of the wiring retaining spring, and a fixed stop block is provided on the retaining spring limit block near one end of the wiring retaining spring.

[0017] Furthermore, the base also includes a guide rail mounting groove, and a grounding spring is provided at the bottom of the guide rail mounting groove, and the grounding spring is electrically connected to the circuit board.

[0018] Furthermore, fixed slots are provided on both sides of the guide rail installation slot, a deformation portion is provided on one side of the guide rail installation slot, and a fixed slot is formed on the deformation portion.

[0019] Furthermore, one end of the grounding spring is an elastic clip, and the elastic clip is arranged in a second fixing slot opposite to the first fixing slot.

[0020] Furthermore, a sliding mounting cavity is provided on the side wall of the base, and the wiring button is slidably installed in the sliding mounting cavity. The sliding mounting cavity is provided with a travel limit part 1 and a travel limit part 2, and the side wall of the wiring button is provided with a travel limit block 1 and a travel limit block 2 which respectively cooperate with the travel limit part 1 and the travel limit part 2.

[0021] The beneficial effects of the utility model are:

[0022] 1. The utility model realizes the rapid installation or removal of the shielded wire through the above structure, and the operation is simpler than the prior art of fixing with screws.

[0023] 2. The utility model makes the position of the fixed end more stable and the structure of the abutting baffle more stable by the fixed stop block abutting against the surface of the fixed end. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0026] Figure 3 This is a schematic cross-sectional view of the utility model;

[0027] Figure 4 for Figure 3 Schematic diagram of the structure of area A in .

[0028] The marks in the figure are:

[0029] 1. Base; 2. Cover; 3. Circuit board; 4. Wiring card; 5. Wiring retaining spring; 7. Installation gap; 8. Wire mounting hole; 9. Wiring button; 41. Installation baffle; 42. Resistance baffle; 411. Guide surface one; 51. Guide surface two; 10. Retaining spring limit block; 11. U-shaped portion; 12. Fixed block; 13. Guide rail mounting slot; 14. Grounding spring; 15. Fixed slot one; 16. Elastic clip; 17. Fixed slot two; 18. Travel limit part one; 19. Travel limit part two; 20. Travel limit block one; 21. Travel limit block two; 52. Fixed end; 53. Elastic end. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0031] Example 1:

[0032] This embodiment provides a signal surge protector, including:

[0033] A base 1, a cover plate 2 is installed on one side of the base 1, and the base 1 and the cover plate 2 form a mounting cavity;

[0034] The circuit board 3 is arranged in the mounting cavity;

[0035] The wiring card board 4 is arranged in the mounting cavity and is electrically connected to the circuit board 3;

[0036] A wiring clamp spring 5, one end of which is connected to the wiring card plate 4, and an installation gap 7 is formed between the other end and the wiring card plate 4;

[0037] The wire mounting hole 8 and the guide mounting hole are located on one side of the base 1 and are positioned corresponding to the mounting gap 7;

[0038] The wiring button 9 is slidably mounted on the mounting base 1 , and one end thereof abuts against the other end of the wiring clamping spring 5 . When the wiring button 9 is pressed, the mounting gap 7 can be expanded.

[0039] An installation cavity is provided on one end face of the base 1, and a cover plate 2 is provided on the installation cavity. A circuit board 3 is provided in the installation cavity. A limiting rib plate for limiting the periphery of the circuit board 3 is provided in the installation cavity. The wiring card board 4 is arranged in a mounting groove reserved on the installation cavity, and a bent connecting plate is provided in the middle position of the wiring card board 4, and the connecting plate is welded to the circuit board 3.

[0040] There are two wiring card boards 4, namely the left wiring card board 4 and the right wiring card board 4, which are connected to the left and right sides of the circuit board 3 respectively. One is used to connect the input shielded wire and the other is used to connect the output shielded wire. DC connection is realized through the circuit board 3. The left and right wiring card boards 4 constitute a group, and multiple groups of wiring card boards 4 can be set as needed.

[0041] The wiring clamp spring 5, one end of the wiring clamp spring 5 is connected to the wiring card board 4, and the other end forms an installation gap 7 with the wiring card board 4. One end of the wiring clamp spring 5 can be fixedly connected to the wiring card board 4, which is called the fixed end 52, or it can be connected by a resistance limit. The present embodiment adopts a resistance limit connection. The other end of the wiring clamp spring 5 is elastic, which is called the elastic end 53; the wiring card board 4 includes a mounting baffle 41, and a mounting gap 7 is formed between the elastic end 53 of the wiring clamp spring 5 and the mounting baffle 41. The mounting gap 7 is used to clamp the inner core of the shielded wire. The wire mounting hole 8 is opened on the side of the base 1, facing the mounting gap 7, and the position corresponds to the mounting gap 7. The shielded wire is inserted into the mounting hole so that the inner core of the shielded wire is clamped in the mounting gap 7 to achieve electrical conduction of the shielded wire. When the shielded wire needs to be unplugged, the wiring button 9 is pressed, and the lower end of the wiring button 9 contacts the elastic end 53 of the wiring clamp spring 5, causing the elastic end 53 to swing, thereby expanding the mounting gap 7 so that the shielded wire can be freely unplugged.

[0042] The above structure enables quick installation or removal of the shielded wire, and the operation is simpler than fixing with screws in the prior art.

[0043] The wiring card board 4 includes:

[0044] An installation baffle 41 is installed, and an installation gap 7 is formed between the installation baffle 41 and the wiring clamp 5. A guide surface 1 411 is provided at one end of the installation baffle 41 close to the wire installation hole 8, and a guide surface 2 51 is provided at the end of the wiring clamp 5 close to the side of the wire installation hole 8. The guide surface 1 411 and the guide surface 2 51 form a V-shaped guide groove.

[0045] The wiring card board 4 is formed as a whole by bending a sheet metal, the mounting baffle 41 is formed by bending, and the end of the mounting baffle 41 close to the wire mounting hole 8 is bent to form a guide surface 1 411, the wiring clamp 5 is also formed as a whole by bending a sheet metal, and the elastic end 53 is bent to form a guide surface 2 51, and the guide surface 1 411 and the guide surface 2 51 form a V-shaped guide groove, which makes it easier to insert the inner core of the shielded wire into the mounting gap 7, so that the inner core remains in a contracted state.

[0046] Example 2:

[0047] This embodiment provides a signal surge protector, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0048] A retaining spring limit block 10 is provided in the installation cavity, and the middle position of the wiring retaining spring 5 includes a U-shaped portion 11, which is sleeved on the retaining spring limit block 10. The wiring card plate 4 includes a contact baffle 42, which contacts one end of the wiring retaining spring 5, and a fixed stop block 12 is provided on the retaining spring limit block 10 near one end of the wiring retaining spring 5.

[0049] The retaining spring limit block 10 is cylindrical and includes a U-shaped portion 11 in the middle position of the wiring retaining spring 5. The U-shaped portion is sleeved on the retaining spring limit block 10, and the end of the wiring card plate 4 opposite to the installation baffle 41 is bent to form a resistance baffle 42. The resistance baffle 42 resists one end of the wiring retaining spring 5, and a fixed stop block 12 is provided on the retaining spring limit block 10 near one end of the wiring retaining spring 5. The fixed stop block 12 is formed on the retaining spring limit portion, and the fixed stop block 12 can be fixed to resist on the surface of the fixed end 52, so that the position of the fixed end 52 is more stable, and the resistance structure with the resistance baffle 42 is more stable, and further, the resistance baffle 42 and the fixed end 52 can be welded together.

[0050] Example 3:

[0051] The base 1 further includes a guide rail mounting groove 13 , at the bottom of which a grounding spring 14 is provided. The grounding spring 14 is electrically connected to the circuit board 3 .

[0052] The guide rail mounting groove 13 is used to mount the base 1 on the metal guide rail. A grounding spring 14 is provided at the bottom of the guide rail mounting groove 13. The grounding spring 14 is made of metal, and one end of the grounding spring 14 is electrically connected to the circuit board 3. It should be noted that the metal guide rail needs to be grounded in advance. When the shielded wire is struck by lightning and generates a surge, it can be grounded through the grounding spring 14 and the guide rail to discharge the current into the earth.

[0053] Both sides of the guide rail installation groove 13 are provided with fixed card grooves, and one side of the guide rail installation groove 13 is provided with a deformation part, and a fixed card groove 15 is formed on the deformation part.

[0054] Fixed slots are provided on both side walls of the guide rail mounting groove 13, which are used to engage with the edge of the guide rail. A deformation portion is provided on one side of the guide rail mounting groove 13. The deformation portion is a hollow structure integrally formed on one side of the base 1. The width of the guide rail mounting groove 13 can be widened by toggling the deformation portion, and it can be freely installed and removed directly from the end of the guide rail.

[0055] One end of the grounding spring 14 is an elastic clip 16 , which is disposed in a second fixing slot 17 opposite to the first fixing slot 15 .

[0056] The elastic clip 16 has a certain elasticity and forms a clamping area between it and the fixed card slot 17. When the edge of the guide rail is embedded in the fixed card slot 17, the elastic clip 16 makes the installation of the guide rail more secure and makes the contact between the elastic clip 16 and the guide rail closer, making the electrical connection between the grounding spring 14 and the guide rail more stable.

[0057] A sliding mounting cavity is provided on the side wall of the base 1, and the wiring button 9 is slidably installed in the sliding mounting cavity. A stroke limit part 18 and a stroke limit part 2 19 are provided in the sliding mounting cavity, and a stroke limit block 1 20 and a stroke limit block 2 21 are provided on the side wall of the wiring button 9, which respectively cooperate with the stroke limit part 18 and the stroke limit part 2 19.

[0058] A square sliding mounting cavity is provided on the side wall of the base 1. The wiring button 9 is square and is slidably mounted in the sliding mounting cavity. A stroke limit portion 18 is provided on one side of the sliding mounting cavity, and a stroke limit portion 2 19 is provided on the opposite side of the sliding mounting cavity. A stroke limit block 20 is provided on the side wall of the wiring button 9 to cooperate with the stroke limit portion 18, which can prevent the wiring button 9 from falling out from above the sliding mounting cavity, and the stroke limit portion 2 19 and the stroke limit block 2 21 can prevent excessive downward pressure.

[0059] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which fall within the scope of protection of this application.

Claims

1. A signal surge protector, characterized in that: include: A base (1), a cover plate (2) is mounted on one side of the base (1), and the base (1) and the cover plate (2) form a mounting cavity; A circuit board (3), the circuit board (3) being arranged in the mounting cavity; A wiring card board (4), the wiring card board (4) is arranged in the installation cavity and is electrically connected to the circuit board (3); A wiring clamp spring (5), one end of the wiring clamp spring (5) is connected to the wiring clamp plate (4), and an installation gap (7) is formed between the other end and the wiring clamp plate (4); A wire mounting hole (8), a guide mounting hole, is located on one side of the base (1) and is positioned corresponding to the mounting gap (7); The wiring button (9) is slidably mounted on the mounting base (1), and one end thereof abuts against the other end of the wiring retaining spring (5). When the wiring button (9) is pressed, the mounting gap (7) can be expanded.

2. A signal surge protector according to claim 1, characterized in that: The wiring card plate (4) comprises a left wiring card plate (4) and a right wiring card plate (4), and multiple groups are provided.

3. The signal surge protector according to claim 1, characterized in that: The wiring card (4) includes: A mounting baffle (41) is installed, and an installation gap (7) is formed between the mounting baffle (41) and the wiring clamp (5). A guide surface 1 (411) is provided at one end of the mounting baffle (41) close to the wire mounting hole (8), and a guide surface 2 (51) is provided at one side of the end of the wiring clamp (5) close to the wire mounting hole (8). The guide surface 1 (411) and the guide surface 2 (51) form a V-shaped guide groove.

4. The signal surge protector according to claim 1, characterized in that: A retaining spring stopper (10) is provided in the installation cavity, a U-shaped portion (11) is provided in the middle of the wiring retaining spring (5), the U-shaped portion (11) is sleeved on the retaining spring stopper (10), the wiring card plate (4) includes a contact baffle (42), the contact baffle (42) contacts one end of the wiring retaining spring (5), and a fixed stopper (12) is provided on the retaining spring stopper (10) near one end of the wiring retaining spring (5).

5. The signal surge protector according to claim 1, characterized in that: The base (1) further comprises a guide rail mounting groove (13), a grounding spring (14) is provided at the bottom of the guide rail mounting groove (13), and the grounding spring (14) is electrically connected to the circuit board (3).

6. The signal surge protector according to claim 5, characterized in that: Both sides of the guide rail installation groove (13) are provided with fixed card slots, one side of the guide rail installation groove (13) is provided with a deformation portion, and a fixed card slot (15) is formed on the deformation portion.

7. The signal surge protector according to claim 6, characterized in that: One end of the grounding spring (14) is an elastic clip (16), and the elastic clip (16) is arranged in a second fixed slot (17) opposite to the first fixed slot (15).

8. The signal surge protector according to claim 1, characterized in that: A sliding mounting cavity is provided on the side wall of the base (1), and the wiring button (9) is slidably mounted in the sliding mounting cavity. A travel limit portion 1 (18) and a travel limit portion 2 (19) are provided in the sliding mounting cavity. A travel limit block 1 (20) and a travel limit block 2 (21) are provided on the side wall of the wiring button (9) and are matched with the travel limit portion 1 (18) and the travel limit portion 2 (19) respectively.

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