Modular surge protector

Abstract

The utility model relates to the field of surge protector equipment, in particular to a modularized surge protector. The modularized surge protector comprises a surge current signal output assembly and a thermal tripping assembly which are respectively connected with a frame body, the frame body is connected with a chassis part, and a signal output mechanism is arranged in the chassis part. And the action output end of the thermal tripping assembly and the action output end of the surge current signal output assembly are respectively arranged towards the chassis part and are matched with the signal output mechanism. Two surge protector signal output schemes can be realized through replacement of the signal output mechanism.

Description

Technical Field

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

[0002] The existing surge protector needs to output the thermal trip action signal and the signal of the surge current passing through. Generally, a sensor is used to convert the action end of the thermal trip component and the temperature rise when the surge current passes through the component into an electrical signal, which is then uploaded to the host computer after being processed by the circuit. The sensor group and the circuit both need to be powered. Therefore, the operation of the surge protector needs to be powered by a cable, and the deployment of the surge protector is subject to power supply restrictions. To solve this problem, there is a solution that uses optical fiber and optical time domain reflectometer to achieve signal transmission. Specifically, the action output end of the thermal trip component and the surge current signal output component corresponds to the position of the optical fiber, and when displacement occurs, it offsets the optical fiber and pushes the optical fiber to bend. The bending of the optical fiber at this position can be monitored by the optical time domain reflectometer coupled to its end. Therefore, the optical time domain reflectometer can obtain information corresponding to the bending point of the optical fiber that the surge protector flows through a surge current or a thermal trip action occurs.

[0003] The disadvantage of the above-mentioned optical fiber solution is that one optical time domain reflectometer can be coupled to one optical fiber. If the deployment scenario requires a large number of surge protectors, multiple surge protectors can be connected in series through an optical time domain reflectometer and an optical fiber to achieve monitoring. If the deployment scenario only requires one or a few surge protectors, the cost of configuring an optical time domain reflectometer for it separately is high. Therefore, it is necessary to choose a suitable one from the above-mentioned two surge protector signal transmission schemes based on the number of deployed surge protectors. For enterprises, they need to develop two different surge protector products, which has high R&D costs. Utility Model Content

[0004] On the one hand, the utility model provides a modular surge protector, which can realize two surge protector signal output schemes by replacing the signal output mechanism.

[0005] The modular surge protector provided by the utility model comprises a surge current signal output component and a thermal trip component respectively connected to a frame body, the frame body is connected to a chassis member, a signal output mechanism is arranged in the chassis member, an action output end of the thermal trip component and an action output end of the surge current signal output component are respectively arranged toward the chassis member and cooperate with the signal output mechanism.

[0006] Further, the signal output mechanism includes an optical fiber tensioned and arranged inside the chassis member. One end of the optical fiber is coupled to an optical time domain reflectometer. The action output ends of the thermal trip assembly and the surge current signal output assembly can respectively abut against the optical fiber to bend the optical fiber.

[0007] Further, the signal output mechanism includes a sensor group and a processing unit. The sensor group cooperates with the action output ends of the thermal trip assembly and the surge current signal output assembly respectively, and the processing unit is electrically connected to the sensor group.

[0008] Further, the surge current signal output assembly includes a first attracting member and a second attracting member that are rotatably engaged. The first attracting member is fixedly arranged relative to the grounding circuit, and the second attracting member can rotate to approach the first attracting member under the action of the magnetic field generated by the current flowing through the grounding circuit.

[0009] Further, a first cavity is provided inside the frame body. One end of the first cavity is provided with a first opening structure. The surge current signal output assembly and the thermal trip assembly are located inside the first cavity and are detachably connected to the frame body. A connecting structure is provided at the frame body near the first opening structure, and the chassis member closes the first opening structure through the connecting structure.

[0010] Further, a number of first configuration positions are regularly provided inside the first cavity. Each first configuration position corresponds to a lightning protection component. The lightning protection component includes a housing and the thermal trip assembly located inside the housing. The housing is detachably connected to the frame body.

[0011] Further, a number of second configuration positions are also provided inside the first cavity. The surge current signal output assembly is provided at each second configuration position.

[0012] Further, one second configuration position is provided inside the first cavity, and one surge current signal output assembly is connected to a plurality of lightning protection components respectively.

[0013] Further, the thermal trip assembly includes a belt body and an action rod for forming the action output end.

[0014] Further, the fixed end of the belt body is connected to the surge current signal output assembly by screws.

[0015] Beneficial effects

[0016] In this solution, the surge protector is disassembled into two parts: a frame body and a chassis part. The functional components of the surge protector, such as lightning protection components, thermal tripping components, and surge current signal output components, are connected to the frame body to form a relatively independent integrated component, and the communication components of the surge protector, such as signal output mechanisms, are connected to the chassis part to form a relatively independent integrated component. After the thermal tripping component and the surge current signal output component are connected to the frame body, their action output ends face the chassis part, corresponding to the signal output mechanism in the chassis part, and can be cooperatively arranged with the signal output mechanism after the chassis part and the frame body are fitted together. In this way, according to the actual deployment situation, the frame body can be assembled with different types of chassis parts to achieve different signal output methods, and it does not involve replacing the components within the integrated component where the frame body is located. Brief Description of the Drawings

[0017] 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 in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the cooperation between the frame body and the chassis part of the modular surge protector provided in the first and second embodiments of the present invention;

[0019] Figure 2 It is an overall schematic diagram of the frame body provided in the first and second embodiments of the present invention;

[0020] Figure 3 It is a partial structural schematic diagram at the lightning protection component provided in the first and second embodiments of the present invention;

[0021] Figure 4 It is a schematic diagram of the cooperation between the surge current signal output component and the thermal tripping component provided in the first and second embodiments of the present invention.

[0022] Reference numerals in the drawings: 1 - frame body; 2 - chassis part; 3 - first opening structure; 4 - lightning protection component; 5 - surge current signal output component; 6 - second configuration position; 7 - first configuration position; 8 - lightning protection element; 9 - thermal tripping component; 10 - cross bar; 11 - copper bar structure; 12 - first attracting part; 13 - second attracting part; 14 - action rod; 15 - belt body. Detailed Description of the Embodiments

[0023] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0024] Embodiment 1

[0025] As Figures 1 to 4 shown, a modular surge protector includes a surge current signal output component 5 and a thermal trip component 9 respectively connected to a frame body 1. The frame body 1 is connected to a chassis member 2. A signal output mechanism is provided inside the chassis member 2. The action output ends of the thermal trip component 9 and the surge current signal output component 5 are respectively arranged towards the chassis member 2 and cooperate with the signal output mechanism.

[0026] The modular surge protector in this solution can achieve different ways of surge current signal output and thermal trip action signal output by replacing the chassis member 2, so as to facilitate the selection of the signal output mode of the surge protector according to the power supply conditions of the deployment site of the surge protector. The thermal trip component 9 outputs an action signal through the movement of an action rod 14, and the surge current signal output component 5 also outputs an action signal through displacement. There is a signal output mechanism composed of sensors and circuit elements in the existing surge protector. The action signal is converted into an electrical signal by the sensor and then processed by the circuit elements for external transmission to achieve the output of the thermal trip signal and the surge current signal of the surge protector. This solution disassembles the surge protector into two parts: the frame body 1 and the chassis member 2. The functional components of the surge protector, such as the lightning protection element 8, the thermal trip component 9, and the surge current signal output component 5, are connected to the frame body 1 to form a relatively independent integrated component, and the communication components of the surge protector, such as the signal output mechanism, are connected to the chassis member 2 to form a relatively independent integrated component. After the thermal trip component 9 and the surge current signal output component 5 are connected to the frame body 1, their action output ends face the chassis member 2, corresponding to the signal output mechanism inside the chassis member 2, and can be arranged in cooperation with the signal output mechanism after the chassis member 2 and the frame body 1 are matched. In the above way, according to the actual deployment situation, the frame body 1 can be assembled with different types of chassis members 2 to achieve different ways of signal output, and it does not involve the replacement of the components inside the integrated component where the frame body 1 is located.

[0027] In an optional embodiment, the signal output mechanism includes an optical fiber tensioned inside the chassis member 2. One end of the optical fiber is coupled to an optical time domain reflectometer. The action output ends of the thermal trip component 9 and the surge current signal output component 5 can respectively abut against the optical fiber to bend the optical fiber.

[0028] The optical fiber is tensioned and arranged in the chassis part 2 by means of a bracket or the like. Both ends of the optical fiber extend out of the chassis part 2 respectively, and then extend into the chassis parts 2 of other surge protectors, so as to realize that one optical fiber is connected in series with multiple surge protectors. The end of the optical fiber is coupled to an optical time domain reflectometer. The action output ends of the thermal tripping component 9 and the surge current signal output component 5 correspond to the position of the optical fiber. When displacement occurs, they abut against the optical fiber and push the optical fiber to bend. The bending of the optical fiber at this position can be monitored by the optical time domain reflectometer coupled to its end. The principle is that the optical time domain reflectometer can obtain the attenuation information according to the backward scattered light generated when light propagates in the optical fiber. Using this characteristic, the optical time domain reflectometer can obtain the information of the surge protector at the bending point of the optical fiber where a surge current flows or a thermal tripping action occurs.

[0029] In an optional embodiment, the surge current signal output component 5 includes a first attracting part 12 and a second attracting part 13 which are rotationally matched. The first attracting part 12 is fixedly arranged relative to the grounding circuit, and the second attracting part 13 can rotate to approach the first attracting part 12 under the action of the magnetic field generated by the current flowing through the grounding circuit. The thermal tripping component 9 includes a belt body 15 and an action rod 14 for forming the action output end.

[0030] The grounding circuit is connected to the lightning protection element 8 in the surge protector and is located on one side of the grounding port of the lightning protection element 8. The other port of the lightning protection element 8 is connected to the target circuit to be protected. The first attracting part 12 and the second attracting part 13 are located in the magnetic field area generated by the surge current in the grounding circuit. Preferably, the grounding circuit cooperating with the first attracting part 12 and the second attracting part 13 is a copper bar structure 11. The magnetic field magnetizes the first attracting part 12 and the second attracting part 13, so that a mutual magnetic attraction force is generated between them. The optical fiber is located at the corresponding position of the second attracting part 13. The second attracting part 13 rotates towards the first attracting part 12 under the action of the magnetic attraction force, so as to abut against the optical fiber and push the optical fiber to bend.

[0031] The belt body 15 of the thermal tripping component 9 is located between the lightning protection element 8 and the surge current signal output component 5. The belt body 15 forms a section of the grounding circuit. The belt body 15 of the thermal tripping component 9 restricts the action rod 14 to keep its relative position fixed under normal circumstances. When thermal tripping occurs, one end of the belt body 15 is separated from the original fixed end. At this time, the belt body 15 cannot restrict the action rod 14, and the action rod 14 moves under the action of the spring, so as to abut against the optical fiber and push the optical fiber to bend.

[0032] In an alternative embodiment, a first cavity is provided inside the frame body 1. A first opening structure 3 is provided at one end of the first cavity. The surge current signal output assembly 5 and the thermal trip assembly 9 are located inside the first cavity and are detachably connected to the frame body 1. A connection structure is provided at the frame body 1 near the first opening structure 3, and the chassis part 2 closes the first opening structure 3 through the connection structure.

[0033] The chassis part 2 and the frame body 1 are fixed through buckles, screws or other connection structures, so that at least a part of the chassis part 2 is located at the first opening structure 3 to close the first opening structure 3. At this time, the optical fiber on the chassis part 2 corresponds to the thermal trip assembly 9 and the surge current signal output assembly 5 inside the first cavity. A second opening structure is also provided at the other end of the first cavity, and lightning protection elements 8, thermal trip assemblies 9, etc. are placed inside the first cavity through the second opening structure and then closed by means of a cover body or the like.

[0034] In an alternative embodiment, a number of first configuration positions 7 are regularly provided inside the first cavity. A lightning protection component 4 is provided corresponding to each first configuration position 7. The lightning protection component 4 includes a housing and the thermal trip assembly 9 located inside the housing. The housing is detachably connected to the frame body 1.

[0035] For the case of multiple surge protectors used in parallel, each frame body 1 corresponds to multiple lightning protection elements 8. Each lightning protection element 8 and the thermal trip assembly 9 form a relatively independent lightning protection component 4 inside the housing, corresponding to one protected circuit. The lightning protection component 4 is placed at the first configuration position 7 inside the first cavity through the second opening structure, and the connection between the lightning protection component 4 and the frame body 1 is fixed through buckles, screws or other connection structures.

[0036] In an alternative embodiment, a number of second configuration positions 6 are also provided inside the first cavity. The surge current signal output assembly 5 is provided at each second configuration position 6.

[0037] The first attracting member 12 and the copper bar structure 11 are fixedly arranged at the second configuration position 6. The second attracting member 13 is rotationally matched with the first attracting member 12, and the two are kept separated by a spring. The lightning protection component 4 is connected to the copper bar structure 11, thereby forming a grounding circuit. The grounding port of the lightning protection element 8 is connected to one end of the belt body 15 of the thermal trip assembly 9, the other end of the belt body 15 is connected to the copper bar structure 11 through a conductive structure, and the copper bar structure 11 is grounded through the port opened on the frame body 1.

[0038] In an alternative embodiment, one second configuration position 6 is provided inside the first cavity, and one surge current signal output assembly 5 is connected to a plurality of the lightning protection components 4 respectively.

[0039] For the multi - connection use of surge protectors, where one optical fiber corresponds to multiple surge protectors, in this solution, multiple lightning protection components 4 are all connected to a copper bus structure 11. Specifically, at one end of the copper bus structure 11 close to the lightning protection component 4, there is a cross bar 10 extending along the arrangement direction of the multiple lightning protection components 4. Along the arrangement direction of the multiple lightning protection components 4 on the cross bar 10, several connection points are arranged at intervals. The conductive structure at the fixed end of the belt body 15 of the thermal release component 9 is connected to the corresponding connection point on the cross bar 10 by screws. At the same time, the screws are engaged with the frame body 1, so that the copper bus structure 11 is fixedly connected to the frame body 1. That is, the surge currents of the above - mentioned multiple surge protectors all discharge through one copper bus structure 11, and there is only one bending point on the optical fiber. When surge current flows through any one of the surge protectors in this surge protector device, it causes a bend in the optical fiber through the above - mentioned second attracting member 13, thereby reducing the influence on the optical path at the far end of the optical fiber.

[0040] Embodiment 2

[0041] In an alternative embodiment, the signal output mechanism includes a sensor group and a processing unit. The sensor group cooperates with the action output end of the thermal release component 9 and the action output end of the surge current signal output component 5 respectively, and the processing unit is electrically connected to the sensor group.

[0042] The sensor group includes a pressure sensor, a displacement sensor, a Hall element, etc. The processing unit includes components such as a circuit board, and is fixedly connected to the chassis part 2 through buckles or screws respectively. The belt body 15 of the thermal release component 9 is located between the lightning protection element 8 and the surge current signal output component 5. A section of the belt body 15 forms a grounding circuit. Under normal circumstances, the belt body 15 of the thermal release component 9 restricts the action rod 14 to keep its relative position fixed. When thermal release occurs, one end of the belt body 15 is separated from the original fixed end. At this time, the belt body 15 cannot restrict the action rod 14, and the action rod 14 moves under the action of the spring, so that it cooperates with the sensor group to output an electrical signal of the thermal release action, which is then converted by the processing unit to convert the analog electrical signal into a digital electrical signal for output; The first attracting member 12 and the second attracting member 13 are located in the magnetic field area generated by the surge current in the grounding circuit. The magnetic field magnetizes the first attracting member 12 and the second attracting member 13, so that a mutual magnetic attraction force is generated between the two. The sensor group is located at the corresponding position of the second attracting member 13. The second attracting member 13 rotates towards the direction of the first attracting member 12 under the action of the magnetic attraction force, so that it cooperates with the sensor group to output an electrical signal of the thermal release action, which is then converted by the processing unit to convert the analog electrical signal into a digital electrical signal for output.

[0043] 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 first, second, previous, and next, etc. does not denote any order. These words can be interpreted as names.

[0044] The above embodiments are only suitable for illustrating the present utility model rather than limiting 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 belong to the scope of the present utility model. The scope of patent protection of the present utility model shall be defined by the claims.

Claims

1. A modular surge protector, characterized in that: The invention comprises a surge current signal output component (5) and a thermal release component (9) respectively connected to a frame (1); the frame (1) is connected to a chassis (2); a signal output mechanism is arranged in the chassis (2); an action output end of the thermal release component (9) and an action output end of the surge current signal output component (5) are respectively arranged toward the chassis (2) and cooperate with the signal output mechanism.

2. The modular surge protector according to claim 1, characterized in that: The signal output mechanism comprises an optical fiber tensionedly arranged in the chassis (2), one end of the optical fiber being coupled to an optical time domain reflectometer, and the action output end of the thermal trip assembly (9) and the action output end of the surge current signal output assembly (5) are respectively capable of abutting against the optical fiber to cause the optical fiber to bend.

3. The modular surge protector according to claim 1, characterized in that: The signal output mechanism comprises a sensor group and a processing unit, the sensor group cooperates with the action output end of the thermal trip component (9) and the action output end of the surge current signal output component (5) respectively, and the processing unit is electrically connected to the sensor group.

4. The modular surge protector according to claim 2 or 3, characterized in that: The surge current signal output component (5) comprises a first attraction component (12) and a second attraction component (13) which are rotatably matched, wherein the first attraction component (12) is fixedly arranged relative to the grounding circuit, and the second attraction component (13) can be rotated to be close to the first attraction component (12) under the action of the magnetic field generated by the current flowing through the grounding circuit.

5. The modular surge protector according to claim 1, characterized in that: A first cavity is provided in the frame (1), a first opening structure (3) is provided at one end of the first cavity, the surge current signal output component (5) and the thermal release component (9) are located in the first cavity and are detachably connected to the frame (1), a connection structure is provided near the first opening structure (3) on the frame (1), and the chassis (2) closes the first opening structure (3) via the connection structure.

6. The modular surge protector according to claim 5, characterized in that: A plurality of first configuration positions (7) are regularly arranged in the first cavity, each of the first configuration positions (7) corresponds to a lightning protection component (4), the lightning protection component (4) comprises a shell and the thermal release component (9) located in the shell, and the shell is detachably connected to the frame (1).

7. The modular surge protector according to claim 6, characterized in that: A plurality of second configuration positions (6) are also provided in the first cavity, and the surge current signal output component (5) is provided at each of the second configuration positions (6).

8. The modular surge protector according to claim 7, characterized in that: A second configuration position (6) is provided in the first cavity, and a surge current signal output component (5) is respectively connected to a plurality of lightning protection components (4).

9. The modular surge protector according to claim 2 or 3, characterized in that: The thermal release assembly (9) comprises a belt body (15) and an actuating rod (14) for forming the actuating output end.

10. The modular surge protector according to claim 9, characterized in that: The fixed end of the belt body (15) is connected to the surge current signal output component (5) via screws.

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