Multi-union surge current signal optical fiber output device and surge protector

Abstract

The utility model relates to the field of surge protector equipment, in particular to a multi-union surge current signal optical fiber output device and a surge protector. The multi-union surge current signal optical fiber output device provided by the utility model is used for a surge protector, and comprises an actuating mechanism and an optical fiber, and the actuating mechanism is matched with a copper bar collecting piece connected with the grounding ends of a plurality of lightning protection assemblies. The action mechanism can move to abut against the optical fiber under the action of a magnetic field generated by current flowing through the copper bar collecting piece, so that the optical fiber is bent, and the end of the optical fiber is coupled with an optical time domain reflectometer. The influence of an action mechanism in each multi-connected surge protector on the optical path of the far end of the optical fiber can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of surge protector devices, in particular to a multi-connected surge current signal optical fiber output device and a surge protector. Background Art

[0002] A temperature sensor is arranged near the lightning protection component in the existing surge protector. When a surge current flows through the lightning protection component, the temperature of the lightning protection component rises. The temperature sensor monitors the temperature change of the lightning protection component and converts the analog signal of the temperature sensor into a digital electrical signal through a circuit for output, so as to realize the monitoring of the surge current flowing through the copper bar. The disadvantage of temperature monitoring is that the temperature sensor needs to cooperate with electrical components such as a circuit. Therefore, the operation of the surge protector either requires power supply through a cable, so the deployment of the surge protector is restricted; or a built-in power storage module needs to be installed, which also requires daily maintenance to maintain the normal operation of the power storage module.

[0003] To solve the problem that the deployment and operation of the surge protector need to consider power supply, there is a existing solution that uses an optical fiber and an optical time domain reflectometer instead of a temperature sensor, that is, using the magnetic field generated when the surge current flows through the grounding circuit to move the action component, and then pushing the optical fiber to bend. The optical time domain reflectometer can measure the optical information at this place, so as to obtain the information of the surge current flowing through the surge protector corresponding to the bending point of the optical fiber at this place.

[0004] There are multiple lightning protection components in the existing multi-connected surge protector device. If the action components of each lightning protection component are independently matched with the optical fiber, there may be multiple bending points in the area where one optical fiber corresponds to one multi-connected surge protector device. Each bending of the optical fiber causes loss to the optical path at the far end of the optical fiber. In the case of connecting multiple multi-connected surge protector devices in series with one optical fiber, it will affect the optical path at the far end of the optical fiber, and further affect the monitoring of the multi-connected surge protector device at the far end. Summary of the Utility Model

[0005] On the one hand, the utility model provides a multi-connected surge current signal optical fiber output device, which can reduce the influence of the action mechanism in each multi-connected surge protector on the optical path at the far end of the optical fiber;

[0006] On the other hand, the utility model provides a surge protector.

[0007] The multi-connected surge current signal optical fiber output device provided by the utility model is used for a surge protector and includes an action mechanism and an optical fiber. The action mechanism cooperates with a copper bar collecting piece connected to the grounding ends of multiple lightning protection components. The action mechanism can move under the action of the magnetic field generated by the current flowing through the copper bar collecting piece to abut against the optical fiber, so that the optical fiber bends. The end of the optical fiber is coupled to an optical time domain reflectometer.

[0008] Further, the actuating mechanism includes a first attracting member and a second attracting member that are rotatably engaged. The first attracting member is fixedly arranged relative to the copper busbar collecting member. The second attracting member can rotate to approach the first attracting member and abut against the optical fiber.

[0009] Further, a horizontal row is provided at one end of the copper busbar collecting member close to the lightning protection component. A plurality of connection sites are provided at intervals along the arrangement direction of the lightning protection component. The grounding end of the lightning protection component is connected to the connection sites in a one-to-one correspondence.

[0010] Further, the multi-connected surge current signal optical fiber output device includes a chassis member. Each chassis member is correspondingly engaged with a plurality of surge protectors. A support member for keeping the optical fiber in a tensioned state is provided on the chassis member. Along the extending direction of the optical fiber, two support members are arranged at intervals. The optical fiber abuts against the two support members in sequence. The portion of the optical fiber between the two support members forms a deformation section.

[0011] Further, a first clamping groove is provided on the support member along the extending direction of the optical fiber. The optical fiber passes through the first clamping groove.

[0012] Further, the rotation axis of the second attracting member is perpendicular to the extending direction of the deformation section. One end of the second attracting member is provided with a rotating shaft for cooperating with the first attracting member, and the other end is provided with a pushing surface that can contact the deformation section.

[0013] Further, a second clamping groove is provided on the pushing surface. The opening width of the second clamping groove on the pushing surface is greater than the radial dimension of the deformation section.

[0014] Further, connection holes for inserting screws are provided at positions corresponding to the connection sites on the horizontal row.

[0015] Further, the lightning protection component includes a lightning protection element and a thermal tripping component. One end of the belt body of the thermal tripping component is connected to the lightning protection element, and the other end is connected through a conductive structure. The conductive structure is connected to the connection site through a screw.

[0016] The surge protector provided by the present utility model includes a plurality of lightning protection components. The copper busbar collecting member of the multi-connected surge current signal optical fiber output device as described in any one of the above is connected to the grounding ends of the plurality of lightning protection components. Beneficial effects

[0017] In this solution, multiple lightning protection components are regularly arranged in the frame body. The grounding ends of the above-mentioned lightning protection components are all connected to a copper bar collector, that is, the surge currents of the above-mentioned multiple lightning protection components all flow through a copper bar collector for discharge. Only one set of operating mechanisms cooperates with the copper bar collector. When a surge current flows through any one of the lightning protection components in the surge protector device, the optical fiber is bent at one place through the above-mentioned set of operating mechanisms, thereby reducing the influence on the optical path at the far end of the optical fiber. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the cooperation between multiple lightning protection components and a copper bar collector provided by an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the cooperation between the operating mechanism and the optical fiber provided by an embodiment of the present invention;

[0021] Reference numerals in the drawings: 1 - operating mechanism; 2 - optical fiber; 3 - copper bar collector; 4 - horizontal row; 5 - lightning protection component; 6 - lightning protection element; 7 - thermal tripping component; 8 - conductive structure; 9 - second clamping groove; 10 - first attracting member; 11 - second attracting member. Detailed Description of the Embodiment

[0022] The following will detail the specific embodiments of the present invention with reference to the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Embodiment

[0023] As Figures 1 to 2 shown, a multi-connected surge current signal optical fiber output device for a surge protector includes an operating mechanism 1 and an optical fiber 2. The operating mechanism 1 cooperates with a copper bar collector 3 connected to the grounding ends of multiple lightning protection components 5. The operating mechanism 1 can move under the action of the magnetic field generated by the current flowing through the copper bar collector 3 to abut against the optical fiber 2, causing the optical fiber 2 to bend. The end of the optical fiber 2 is coupled to an optical time domain reflectometer.

[0024] In view of the fact that existing surge protectors are often used in multiple combinations, one optical fiber 2 corresponds to multiple surge protectors. Each bend of the optical fiber 2 at each location causes loss to the optical path at the far end of the optical fiber 2. When the optical path weakens to a certain value, the optical time domain reflectometer cannot detect the bend at the far end of the optical fiber 2. Therefore, in order to enable one optical fiber 2 to be connected in series with more surge protectors, a plurality of lightning protection components 5 in this solution are regularly arranged in the frame body. The grounding ends of the above lightning protection components 5 are all connected to a copper row collector 3. Specifically, a copper horizontal row 4 is provided at one end of the copper row collector 3 close to the lightning protection component 5. The horizontal row 4 is welded to the copper row collector 3 or fixed by screws. A number of connection points are arranged at intervals along the arrangement direction of the lightning protection component 5. The grounding ends of the lightning protection component 5 are connected to the connection points one by one. That is, the surge currents of the above-mentioned multiple lightning protection components 5 all flow through a copper row collector 3 for discharging current, and only one set of operating mechanisms 1 cooperates with the copper row collector 3. When a surge current flows through any one of the lightning protection components 5 in the surge protector device, the above-mentioned one set of operating mechanisms 1 causes a bend in the optical fiber 2 at one location, thereby reducing the influence on the optical path at the far end of the optical fiber 2.

[0025] In an alternative embodiment, the operating mechanism 1 includes a first attracting member 10 and a second attracting member 11 that are rotatably engaged. The first attracting member 10 is fixedly arranged relative to the copper row collector 3, and the second attracting member 11 can rotate to be close to the first attracting member 10 and abut against the optical fiber 2.

[0026] The first attracting member 10 and the second attracting member 11 are located in the magnetic field region generated by the surge current in the copper row collector 3. The magnetic field magnetizes the first attracting member 10 and the second attracting member 11, causing a mutual magnetic attraction force between the two. The optical fiber 2 is located at the corresponding position of the second attracting member 11. The second attracting member 11 rotates towards the first attracting member 10 under the action of the magnetic attraction force, so that it abuts against the optical fiber 2 and pushes the optical fiber 2 to bend.

[0027] Preferably, a support spring is provided between the first attracting member 10 and the second attracting member 11. The two maintain a certain distance through the support spring. When the magnetic field generated by the surge current flowing through the copper row collector 3 magnetizes the first attracting member 10 and the second attracting member 11, a magnetic attraction force is generated between the first attracting member 10 and the second attracting member 11. When the magnetic attraction force is greater than the elastic force of the support spring, the second attracting member 11 approaches the first attracting member 10 under the action of the magnetic attraction force.

[0028] In an alternative embodiment, the multi-connected surge current signal optical fiber output device includes a chassis member. Each chassis member corresponds to and cooperates with a plurality of surge protectors. A support member for keeping the optical fiber 2 in a tensioned state is provided on the chassis member. Along the extending direction of the optical fiber 2, the two support members are arranged at intervals. The optical fiber 2 abuts against the two support members in turn. The portion of the optical fiber 2 between the two support members forms a deformation section.

[0029] Each surge protector is provided with functional components such as a lightning protection component 5 and a thermal tripping component 7, and an integrated component is formed through a frame. A chassis component cooperates with the integrated components of multiple surge protectors to form a multi-connected surge protector device. An optical fiber 2 is connected in series with multiple multi-connected surge protector devices. When the optical fiber 2 passes through the chassis component of each multi-connected surge protector device, it is kept in a tensioned state by the support member in the chassis component to facilitate cooperation with the corresponding actuating mechanism 1.

[0030] The support member fixes and supports the optical fiber 2. There is a bending point of the optical fiber 2 in a multi-connected surge protector device in this solution. Therefore, two support members are provided in a chassis component. The support member is in a rod-like structure, with one end fixed to the chassis component and the other end face supporting the optical fiber 2. The optical fiber 2 is kept in a tensioned state in the chassis component by means of winding or the like. The two support members are arranged at intervals along the extending direction of the optical fiber 2, and the optical fiber 2 abuts against the end faces of the two support members respectively, so that the optical fiber 2 located between the two support members can generate a bending deformation when being pushed by the second attracting member 11.

[0031] In an alternative embodiment, a first clamping groove is provided on the support member along the extending direction of the optical fiber 2, and the optical fiber 2 passes through the first clamping groove.

[0032] The first clamping groove is opened on the end face at the end of the support member. When the optical fiber 2 cooperates with the support member, it is embedded in the first clamping groove, so that the first clamping groove will not fall off from the end face of the support member due to movement.

[0033] In an alternative embodiment, the rotation axis of the second attracting member 11 is perpendicular to the extending direction of the deformation section. One end of the second attracting member 11 is provided with a rotating shaft to cooperate with the first attracting member 10, and the other end is provided with a pushing surface capable of contacting the deformation section.

[0034] During the rotation of the second attracting member 11, its pushing surface moves along the extending direction of the optical fiber 2 in the deformation section, moving from being close to one support member to being close to the other support member. During the movement, since the second attracting member 11 rotates around the rotating shaft, the pushing surface also generates a component movement perpendicular to the end face of the support member, pushing the optical fiber 2 to cause it to bend.

[0035] Since the component movement of the pushing surface is perpendicular to the end face of the support member and along the extending direction of the optical fiber 2 in the deformation section, the optical fiber 2 always maintains a pressing effect perpendicular to the end face of the support member, avoiding the pushing surface laterally pushing the optical fiber 2 to cause the optical fiber 2 to escape from the first clamping groove.

[0036] In an alternative embodiment, a second clamping groove 9 is provided on the pushing surface. The opening width of the second clamping groove 9 on the pushing surface is greater than the radial dimension of the deformation section.

[0037] The second card slot 9 is opened on the pushing surface. Under the action of the magnetic attraction force, the second attracting member 11 rotates towards the first attracting member 10, so that it contacts the optical fiber 2. The optical fiber 2 enters the second card slot 9 through the opening of the second card slot 9. The optical fiber 2 is restricted in the second card slot 9 to prevent the optical fiber 2 from sliding and separating from the pushing surface when the second attracting member 11 pushes the optical fiber 2.

[0038] The opening width of the second card slot 9 on the pushing surface is greater than the radial dimension of the deformation section.

[0039] The opening of the second card slot 9 is larger, larger than the diameter of the optical fiber 2 in the deformation section. The bottom width of the second card slot 9 is smaller. The second card slot 9 has a structure that gradually narrows from the opening to the bottom, ensuring that the optical fiber 2 can enter the second card slot 9.

[0040] In an alternative embodiment, connection holes for inserting screws are opened at the corresponding connection sites on the horizontal row 4.

[0041] Corresponding positions of the lightning protection component 5 are also provided with hole positions for inserting screws. The screw passes through the hole positions on the lightning protection component 5 and the connection holes on the horizontal row 4, and the two are made to fit by means of meshing or nut extrusion.

[0042] Preferably, corresponding positions on the frame body are also provided with hole positions for inserting screws. The screw passes through the hole positions on the lightning protection component 5 and the connection holes on the horizontal row 4, and finally meshes with the hole positions on the frame body, so that the lightning protection component 5 and the horizontal row 4 are fixed to form a grounding circuit.

[0043] In an alternative embodiment, the lightning protection component 5 includes a lightning protection element 6 and a thermal trip component 7. One end of the belt body of the thermal trip component 7 is connected to the lightning protection element 6, and the other end is connected through a conductive structure 8. The conductive structure 8 is connected to the connection site by a screw.

[0044] One end of the conductive structure 8 is fixedly connected to the belt body by welding or other means, and the other end is provided with a hole position for inserting a screw. When a thermal trip action occurs, the welding between the belt body and the conductive structure 8 melts, and the belt body is separated from the conductive structure 8 under the action of the action rod.

[0045] The screw passes through the hole positions on the conductive structure 8 and the connection holes on the horizontal row 4, and finally meshes with the hole positions on the frame body, so that the lightning protection component 5 and the horizontal row 4 are fixed to form a grounding circuit.

[0046] It should be noted that any of the above embodiments is illustrative of the present utility model rather than limiting the present utility model, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present utility model can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices may be embodied by the same item of hardware. The use of the words "primary", "secondary", "upper", "lower", etc. does not denote any order. These words may be interpreted as names.

[0047] The above embodiments are only suitable for illustrating the present utility model and are not intended to limit the present utility model. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model shall be defined by the claims.

Claims

1. A multi-connected surge current signal fiber optic output device for a surge protector, characterized in that, It includes an operating mechanism (1) and an optical fiber (2). The operating mechanism (1) cooperates with a copper bar collector (3) connected to the grounding ends of a plurality of lightning protection components (5). The operating mechanism (1) can move under the action of a magnetic field generated by the current flowing through the copper bar collector (3) to abut against the optical fiber (2), causing the optical fiber (2) to bend. The end of the optical fiber (2) is coupled to an optical time domain reflectometer.

2. The multi-stage surge current signal fiber optic output device according to claim 1, wherein The operating mechanism (1) includes a first attracting member (10) and a second attracting member (11) that are rotationally engaged. The first attracting member (10) is fixedly arranged relative to the copper bar collector (3). The second attracting member (11) can rotate to approach the first attracting member (10) and abut against the optical fiber (2).

3. The multi-connected surge current signal optical fiber output device according to claim 2, wherein, One end of the copper bar collector (3) close to the lightning protection component (5) is provided with a horizontal row (4). The horizontal row (4) is provided with a number of connection sites at intervals along the arrangement direction of the lightning protection components (5). The grounding ends of the lightning protection components (5) are connected to the connection sites in a one-to-one correspondence.

4. The multi-connected surge current signal optical fiber output device according to claim 2, characterized in that, The multi-connected surge current signal optical fiber output device includes a chassis member. Each chassis member corresponds to and cooperates with a plurality of surge protectors. The chassis member is provided with a support member for keeping the optical fiber (2) in a tensioned state. Along the extension direction of the optical fiber (2), the two support members are arranged at intervals. The optical fiber (2) abuts against the two support members in sequence. The portion of the optical fiber (2) between the two support members forms a deformation section.

5. The multi-connected surge current signal fiber optic output device according to claim 4, characterized in that, The support member is provided with a first clamping groove along the extension direction of the optical fiber (2). The optical fiber (2) passes through the first clamping groove.

6. The multi-connected surge current signal fiber optic output device according to claim 4, characterized in that, The rotation axis of the second attracting member (11) is perpendicular to the extension direction of the deformation section. One end of the second attracting member (11) is provided with a rotating shaft to cooperate with the first attracting member (10), and the end of the other end is provided with a pushing surface that can contact the deformation section.

7. The multi-connected surge current signal optical fiber output device according to claim 6, characterized in that, The pushing surface is provided with a second clamping groove (9). The opening width of the second clamping groove (9) on the pushing surface is greater than the radial dimension of the deformation section.

8. The multi-connected surge current signal optical fiber output device according to claim 3, wherein Connection holes for inserting screws are opened at the positions corresponding to the connection sites on the horizontal row (4).

9. The multi-connected surge current signal fiber optic output device according to claim 8, characterized in that, The lightning protection component (5) includes a lightning protection element (6) and a thermal tripping component (7). One end of the belt body of the thermal tripping component (7) is connected to the lightning protection element (6), and the other end is connected through a conductive structure (8). The conductive structure (8) is connected to the connection site by a screw.

10. A surge protector, comprising a plurality of lightning protection components (5), characterized in that, The copper bar collector (3) of the multi-connected surge current signal optical fiber output device according to any one of claims 1-9 is connected to the grounding ends of the plurality of lightning protection components (5).

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