High-voltage lightning protection electronic device

Abstract

The invention relates to a high-voltage lightning protection electronic device, and relates to the technical field of lightning protection devices, the high-voltage lightning protection electronic device comprises a top cover and a sleeve shell with an opening at one end, the top cover is used for sealing the sleeve shell and is clamped and matched with the sleeve shell at the opening position, and a threading hole communicated with the interior of the sleeve shell is formed in the side, away from the sleeve shell, of the top cover in a penetrating mode; the side, close to the sleeve shell, of the top cover is integrally connected with a plurality of positioning clamping plates in the length direction, the same side of each positioning clamping plate is integrally connected with a positioning cylinder, connecting screws used for fixing a circuit board are arranged in the positioning cylinders in a threaded and penetrating mode, and wire clamping plates are integrally installed at the positions, close to the wire penetrating holes, of the inner side wall of the sleeve shell. A wire clamping groove communicated with the end, away from the inner side wall of the sleeve shell, of the wire clamping plate is formed in the wire clamping plate in a penetrating mode and comprises a clamping groove and a connecting groove which are communicated with each other, and the connecting groove is communicated with the side portion of the wire clamping plate. The circuit board can be conveniently installed, the circuit board is protected, meanwhile, the circuit board or the wire can be prevented from shaking, the welded circuit board and the wire are prevented from being disconnected, and the connecting structure is reinforced.

Description

Technical Field

[0001] The present application relates to the field of lightning arrester equipment technology, and in particular to a high-voltage lightning protection electronic device. Background Art

[0002] A high-voltage lightning protection electronic device is an electronic device connected to lightning protection facilities and used to protect electronic equipment, instruments, and communication lines from damage caused by lightning shock waves. When a sudden spike in current or voltage is generated in an electrical circuit or communication line due to external interference, the lightning arrester can conduct and shunt the current in a very short time, thereby preventing the surge from damaging other equipment in the circuit. The varistor in the lightning arrester will quickly conduct when exposed to overvoltage, short-circuiting the overvoltage to the ground. When the overvoltage disappears, the lightning arrester automatically returns to a high-resistance state, ensuring the continued normal operation of the power system.

[0003] A high-voltage lightning protection electronic device typically consists of a varistor, wires, and a circuit board. The wires are connected to the varistor, and vice versa, to conduct overvoltage in the circuit to the ground, preventing overload and burnout. During installation, the wires and circuit board are often soldered to the circuit board, making it easy for the connection between the wires and the circuit board to loosen or become disconnected, potentially leading to danger or accidents. Therefore, there is an urgent need for a protective device that can consistently maintain a stable connection between the circuit board and the wires. Summary of the Invention

[0004] In order to solve the problem in the prior art that a high-voltage lightning protection electronic device is prone to loose connection and disconnection between the wires and the circuit board inside the protection device during use, the present application provides a high-voltage lightning protection electronic device.

[0005] The present application provides a high-voltage lightning protection electronic device that adopts the following technical solution:

[0006] A high-voltage lightning protection electronic device comprises a top cover and a shell with an opening at one end, the top cover is used to close the shell and is snap-fitted with the shell at the open position, the top cover is provided with a wire threading hole connected to the interior of the shell on the side away from the shell, the top cover is integrally connected with a plurality of positioning clamps along the length direction on the side close to the shell, each of the positioning clamps is integrally connected with a positioning cylinder on the same side, the positioning cylinder has an internal thread with a connecting screw for fixing the circuit board, the inner side wall of the shell is integrally installed with a wire clamping plate at a position close to the wire threading hole, the wire clamping plate is provided with a wire clamping groove connected to the end of the wire clamping plate away from the inner side wall of the shell, the wire clamping groove comprises a clamping groove and a connecting groove that are connected to each other, and the connecting groove is connected to the side of the wire clamping plate.

[0007] By adopting the above technical solution, when the lightning arrester needs to be installed and connected, it is only necessary to pass the wires through the wire holes, and then fix the circuit boards on several positioning clamps through connecting screws. At this time, the wires can be clamped in the wire grooves on the wire clamps. At this time, since the wires do not pass directly to the outside of the shell in a straight line, when the wires outside the shell shake, the impact of the shaking will not be transmitted to the inside of the shell, which effectively avoids the loosening or disconnection of the welding between the wires and the circuit board, ensuring that the protection device circuit can work normally, and also reducing the risk of line failure.

[0008] Optionally, the angle between the connecting groove and the clamping groove is less than or equal to 90°.

[0009] By adopting the above technical solution, when the wire is placed into the clamping slot through the connecting slot, the angle between the connecting slot and the clamping slot is less than 90°, which can effectively prevent the wire from accidentally falling out of the clamping slot when shaking the wire, thereby ensuring the stability of the connection structure.

[0010] Optionally, the angle between the connecting groove and the clamping groove is between 45-80°.

[0011] By adopting the above technical solution, the radial position of the wires can be further limited, ensuring that the wires will not automatically fall out of the wire clamping groove when the wires are pulled or moved by non-human forces, thereby improving the structural stability of the wire clamping and limiting properties.

[0012] Optionally, the end of the connecting groove away from the clamping groove is an arc-shaped structure.

[0013] By adopting the above technical solution, it is more convenient to put the wires into the wire clamping groove. At the same time, when the wires move in the connection groove, they can be smoother, preventing the wires from bending and causing poor circuit connection effect.

[0014] Optionally, gripping areas are provided on both sides of the end of the casing away from the top cover along the width direction, and the gripping areas are arranged with a plurality of rubber strips for avoiding friction.

[0015] By adopting the above technical solution, when installing and removing the top cover and the shell, it can be more convenient for the operator to exert force and prevent slipping, and it can also reduce the material consumption of the shell and reduce the production cost.

[0016] Optionally, the top cover is integrally provided with a connecting tube with a thread on the outer side at the position of the wire threading hole, and two limit plates are integrally connected to the connecting tube. The two limit plates are located on the same plane and close to each other on one side with a gap for the cable to pass through, and the gap distance is less than twice the diameter of the wire.

[0017] By adopting the above technical solution, while ensuring that the wires can pass through the top cover, the radial movable direction of the wires is restricted, making the arrangement of the wires more regular, facilitating rapid identification of the wire connection points and differentiation of the wires during external wiring.

[0018] Optionally, both of the two limiting plates are arc-shaped structures, and the inner sides thereof are facing away from the housing.

[0019] By adopting the above technical solution, when the wires are passed through the connecting barrel on the top cover, the ends of the wires will not abut against the limiting plate to cause threading difficulties, thereby improving the smoothness of the wire threading operation.

[0020] Optionally, the positioning tube is connected to a rubber pad at the screw hole position, the positioning clamp is integrally connected to a column on the side away from the positioning tube, and one end of the column along the axis is integrally connected to the inner wall of the housing.

[0021] By adopting the above technical solution, the column and the positioning cylinder work together to facilitate the installation and removal of the circuit board while forming a clamping and limiting effect on the circuit board in the horizontal direction. At the same time, the column can also strengthen the structural stability of the positioning card. The role of the rubber pad is to protect the circuit board so that the connecting screws will not cause excessive extrusion on the circuit board.

[0022] Optionally, an extrusion plate connected to the clamping groove is provided on the upper side of the wire clamping plate for horizontal sliding. A tension spring is embedded in the wire clamping plate, and one end of the tension spring is fixedly connected to the extrusion plate. A guide block is integrally connected to the extrusion plate on the same side as the tension spring. A slide cylinder is provided on the inner side wall of the sleeve. A push rod is slidably installed in the slide cylinder, and the bottom of the push rod is movably abutted against the guide block. When the push rod presses the guide block downward, the guide block drives the extrusion plate to squeeze the wire located in the clamping groove.

[0023] By adopting the above technical solution, when the wire is located in the clamping groove on the clamping plate and the housing is closed, the bottom of the top cover will abut against the push rod and squeeze the guide block downward. The guide block will slide horizontally toward the middle of the housing under the force, driving the extrusion plate to clamp the wire to further prevent the wire from moving, forming a more stable limiting effect.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. This application improves the connection structure between the wires and the circuit board in the protective device, as well as the fixing structure of the circuit board, so that the wires will not be disconnected from the circuit board when shaken or moved, reducing the possibility of accidents;

[0026] 2. This application can arrange the wires passing through the housing in an orderly manner, making the arrangement of the wires inside and outside the protective device more orderly, making it easier for operators to distinguish them. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of Example 1 of a high-voltage lightning protection electronic device of the present application.

[0028] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle.

[0029] Figure 3 This is a half-sectional view of the internal structure of Example 1 of a high-voltage lightning protection electronic device of the present application.

[0030] Figure 4 This is a cross-sectional view of the internal structure of Example 2 of a high-voltage lightning protection electronic device of the present application.

[0031] Figure 5 This is an exploded view of a wire clip board and its connection structure in a second embodiment of a high-voltage lightning protection electronic device of the present application.

[0032] Explanation of the accompanying drawings: 1. Top cover; 11. Threading hole; 12. Positioning clamping plate; 13. Positioning cylinder; 131. Rubber pad; 14. Column; 2. Housing; 21. Grip area; 211. Rubber strip; 22. Slide; 221. Push rod; 3. Connecting cylinder; 31. Limiting plate; 4. Connecting screw; 5. Wire clamping plate; 51. Wire clamping groove; 511. Snap-in groove; 512. Connecting groove; 52. Extrusion plate; 521. Guide block; 53. Tension spring. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a high-voltage lightning protection electronic device.

[0035] As an example of the present application

[0036] Reference Figure 1 and Figure 3 A high-voltage lightning protection electronic device is used to protect the circuit board and connection structure of the lightning arrester's grounding circuit, preventing accidents. The protection device includes a top cover 1 and a housing 2 that is removably snapped onto the underside of the top cover 1. The housing 2 is hollow and has an opening, and the top cover 1 serves to enclose the housing 2. The lightning arrester's circuit board and a nonlinear resistor, whose resistance value changes according to the surge current, are also fixedly mounted within the housing 2.

[0037] A wire hole 11 is formed through the side of the top cover 1, away from the housing 2. A connecting tube 3 is integrally connected to the hole 11. When connecting the circuit board, the wires soldered to the circuit board enter the housing 2 through the hole 11. The outer surface of the connecting tube 3 is threaded, which not only protects the wires but also allows the protective device to be securely connected to other equipment.

[0038] Reference Figure 1 and Figure 2 Several spaced positioning clips 12 are integrally connected to the top cover 1 along its length, near the housing 2. Each positioning clip 12 is integrally connected to the same side of a positioning cylinder 13. The positioning cylinder 13 is internally threaded, and connecting screws 4 are inserted through these internal threads. When installing a circuit board inside the protective device, the top side of the circuit board is fixedly connected to the positioning clips 12, while the bottom is secured by connecting screws 4, creating a clamping and limiting effect.

[0039] In this way, the circuit board will not come into direct contact with the inner wall of the casing 2, thus avoiding friction and damage to the circuit board and playing a protective role.

[0040] Preferably, in order to ensure that the connecting screws 4 do not cause excessive compression on the circuit board during installation, thereby preventing damage to the circuit board structure, a rubber pad 131 is provided at the end of the positioning cylinder 13 .

[0041] Preferably, a post 14 is integrally connected to the end of the positioning plate 12 that is distal from the positioning cylinder 13. One end of the post 14, along its axis, is integrally connected to the bottom side of the top cover 1. The post cooperates with the positioning cylinder 13, making the positioning plate 12 more stable and less susceptible to bending and breaking. Furthermore, the post 14 abuts or penetrates the circuit board, securing it and avoiding the need for excessive connecting screws 4, which can complicate installation and removal of the circuit board.

[0042] Reference Figure 3 A wire retaining plate 5 is integrally connected to the inner wall of the housing 2, near the wire threading hole 11 on the top cover 1. This plate is used to position and secure the wires inserted into the protective device to prevent them from moving and separating from the circuit board when shaken. Specifically, a wire retaining groove 51 is formed on the wire retaining plate 5 along the height of the housing 2. The groove 51 is connected to the end of the wire retaining plate 5 that is away from the inner wall of the housing 2. The groove 51 includes a connecting groove 511 and a connecting groove 512, which are interconnected. The connecting groove 512 is connected to the outer side of the wire retaining plate 5, and the wires are connected to the connecting groove 511.

[0043] Preferably, the angle between the connecting groove 512 and the clamping groove 511 is less than or equal to 90 degrees, and the optimal angle is between 45-80 degrees. This angle range allows the installer to quickly place the wires without squeezing the wires, ensuring normal circuit connection.

[0044] Preferably, the end of the connecting groove 512 away from the clamping groove 511 is an arc-shaped structure, so that the wire can slide in the connecting groove 512 more easily and conveniently, and prevent the wire from being bent.

[0045] Reference Figure 1 and Figure 3 The end of the cover 2, away from the top cover 1, is symmetrically provided with gripping areas 21 along its width. These gripping areas 21 are interspersed with several rubber strips 211 to prevent friction. This structure makes it easier for the operator to grip the cover 2 when opening it, preventing fingers from slipping. Furthermore, to reduce production costs, the cover 2 is constructed in a conical or platform-like structure, and the gripping areas 21 facilitate the operator's application of force.

[0046] Reference Figure 3 Two stoppers 31 are symmetrically integrated within the connecting tube 3. A gap exists between the adjacent ends of the two stoppers 31, with the gap length being less than twice the diameter of the two wires. This structure allows the wires to be arranged in a single line as they pass through, ensuring an orderly arrangement while also limiting their position.

[0047] Preferably, the two limiting plates 31 are both arc-shaped structures, and the inner sides are both facing the side of the top cover 1 away from the housing 2 so that it is easier and more convenient for the wires to pass through the top cover 1, solving the threading problem.

[0048] The implementation principle of a high-voltage lightning protection electronic device in Example 1 of the present application is as follows:

[0049] The limiting plate 31 on the top cover 1 and the wire clamping plate 5 inside the housing 2 secure the wires soldered to the circuit board inside the protective device, preventing disconnection when the wires are shaken. Furthermore, the positioning clamping plate 12, positioning cylinder 13, and column 14 ensure a stable connection of the circuit board within the housing 2, facilitating installation and removal.

[0050] As the second embodiment applicable to this application

[0051] Reference Figure 4 and Figure 5 A compression plate 52 is slidably mounted on the upper edge of the clamping plate 5, and the compression plate 52 can be inserted into the clamping groove 511. A guide block 521 is integrally connected to the side of the compression plate 52 near the inner wall of the casing 2, and the top of the guide block 521 is provided with a slope. A slide 22 is vertically integrated with the upper edge of the inner wall of the casing 2, and a push rod 221 with a sloped bottom structure is slidably mounted within the slide 22.

[0052] When the top cover 1 and the housing 2 are locked together, the bottom of the top cover 1 contacts and pushes the push rod 221 downward. At this time, the slope structure at the bottom of the push rod 221 contacts the slope on the guide block 521, pushing the guide block 521 and the extrusion plate 52 closer to the inside of the clamping groove 511, thereby clamping the wires in the clamping groove 511.

[0053] Preferably, a plurality of tension springs 53 are connected to one side of the guide block 521 connected to the extrusion plate 52 in the wire clamping plate 5, and the two ends of the tension spring 53 are respectively connected to the wire clamping plate 5 and the extrusion plate 52, so that the guide block 521 can automatically reset when no force is applied, making it convenient to place the wires into the clamping groove 511.

[0054] The implementation principle of a high-voltage lightning protection electronic device in the second embodiment of the present application is as follows:

[0055] The top cover 1 and the housing 2 are closed to further fix the wires in the clamping groove 511, so that the wires are not easily separated from the circuit board, thereby ensuring the normal operation of a high-voltage lightning protection electronic device.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-voltage lightning protection electronic device, comprising a top cover (1) and a casing (2) with an opening at one end, wherein the top cover (1) is used to close the casing (2) and engage with the casing (2) at the opening position, and the top cover (1) is provided with a threading hole (11) on a side away from the casing (2) and communicated with the interior of the casing (2), characterized in that: The top cover (1) is integrally connected to a plurality of positioning clamps (12) along the length direction on one side close to the casing (2), and a positioning tube (13) is integrally connected to the same side of each positioning clamp (12). The positioning tube (13) is threaded with a connecting screw (4) for fixing the circuit board. A wire clamping plate (5) is integrally installed on the inner wall of the casing (2) near the threading hole (11). The wire clamping plate (5) is penetrated by a wire clamping groove (51) connected to one end of the wire clamping plate (5) away from the inner wall of the casing (2). The wire clamping groove (51) includes a clamping groove (511) and a connecting groove (512) that are connected to each other. The connecting groove (512) is connected to the side of the wire clamping plate (5).

2. A high-voltage lightning protection electronic device according to claim 1, characterized in that: The included angle between the connecting groove (512) and the clamping groove (511) is less than or equal to 90°.

3. A high-voltage lightning protection electronic device according to claim 2, characterized in that: The included angle between the connecting groove (512) and the clamping groove (511) is between 45° and 80°.

4. A high-voltage lightning protection electronic device according to claim 3, characterized in that: The end of the connecting groove (512) away from the clamping groove (511) is an arc-shaped structure.

5. The high-voltage lightning protection electronic device according to claim 1, characterized in that: The sleeve (2) is provided with gripping areas (21) on both sides along the width direction at one end away from the top cover (1), and the gripping areas (21) are provided with a plurality of rubber strips (211) for avoiding friction.

6. The high-voltage lightning protection electronic device according to claim 1, characterized in that: The top cover (1) is integrally provided with a connecting tube (3) with a threaded outer side at the position of the threading hole (11), and two limiting plates (31) are integrally connected inside the connecting tube (3). The two limiting plates (31) are located on the same plane and close to each other, with a gap between them for the cable to pass through, and the gap distance is less than twice the diameter of the wire.

7. The high-voltage lightning protection electronic device according to claim 6, characterized in that: The two limiting plates (31) are both arc-shaped structures, and the inner sides thereof are both oriented in a direction away from the sleeve (2).

8. The high-voltage lightning protection electronic device according to claim 1, characterized in that: The positioning cylinder (13) is connected to a rubber pad (131) at the screw hole position, and the positioning clamp (12) is integrally connected to a column (14) on the side away from the positioning cylinder (13). One end of the column (14) along the axis is integrally connected to the inner wall of the housing (2).

9. The high-voltage lightning protection electronic device according to claim 4, characterized in that: The wire clamping plate (5) is provided with an extrusion plate (52) which is connected to the clamping groove (511) and is slidable in the horizontal direction. A tension spring (53) is embedded in the wire clamping plate (5), and one end of the tension spring (53) is fixedly connected to the extrusion plate (52). A guide block (521) is integrally connected to the extrusion plate (52) on the same side as the tension spring (53). A slide cylinder (22) is provided on the inner side wall of the sleeve (2). A push rod (221) is slidably installed in the slide cylinder (22), and the bottom of the push rod (221) is movably abutted against the guide block (521). When the push rod (221) presses the guide block (521) downward, the guide block (521) drives the extrusion plate (52) to extrude the wire in the clamping groove (511).

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