Multi-chamber integrated surge arrester

Abstract

The utility model relates to a related technical field of integrated lightning arrester, concretely is a kind of multi-chamber integrated lightning arrester, including lightning arrester main part, insulator porcelain sleeve and lower wiring end and lightning protection assembly, the fixed place on the lightning arrester main part is equipped with insulator porcelain sleeve, the connecting place of lightning arrester main part bottom end is equipped with lower wiring end, in the utility model, epoxy resin external ring and end cover cover in the outside of insulator porcelain sleeve, can carry out protective wrapping to insulator porcelain sleeve, insulator porcelain sleeve improves its mechanical strength high by epoxy resin external ring, the insulation performance of epoxy resin external ring is more stable, prevent the linear crack or local fragmentation of insulator porcelain sleeve "chamber" shell surface, epoxy resin external ring enhances the mechanical strength of ceramic itself, avoid that ceramic is impacted by outside, it is helpful to integrated lightning arrester by epoxy resin external ring and insulator porcelain sleeve fastened together, for specific high-voltage scene.

Description

Technical Field

[0001] This utility model relates to the technical field of integrated surge arresters, specifically a multi-chamber integrated surge arrester. Background Technology

[0002] The "chamber" of an integrated surge arrester refers to an independent space separated by insulating material. Each chamber contains metal electrodes and an arc-extinguishing structure, which is the core unit for overvoltage protection. Its function is similar to a "multi-stage voltage reduction valve". Through voltage division and current limiting: the series connection of multiple chambers divides the voltage, decomposing the high voltage into multiple low voltage ranges and reducing the electric field strength of a single chamber; and rapid arc extinguishing: special structures in the chamber (such as arc-extinguishing grids and gas-generating materials) can quickly cut off the power frequency follow current after discharge to prevent equipment damage.

[0003] The existing integrated surge arrester "chamber" uses a ceramic structure. Linear cracks or localized fractures appear on the surface of the "chamber" shell. The ceramic itself is relatively brittle and is easily affected by external impacts, making it difficult for the integrated surge arrester to be used in specific high-voltage scenarios. The integrated surge arrester terminals are affected by high temperatures, causing the terminal lines to age. Utility Model Content

[0004] The purpose of this invention is to provide a multi-chamber integrated surge arrester to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-chamber integrated surge arrester includes an arrester body, an insulator porcelain bushing, a lower terminal, and a surge arrester assembly. The insulator porcelain bushing is installed at a fixed point on the arrester body. A lower terminal is provided at a connection point at the bottom of the arrester body. The arrester body and the insulator porcelain bushing are located at a fixed point on the surge arrester assembly. The assembly also includes...

[0007] A double-layer protective assembly is installed on the porcelain sleeve of the insulator;

[0008] A terminal protection assembly is provided on the lower terminal;

[0009] The insulator porcelain sleeve is fixed with an end cap, the top of the surge arrester body is provided with an upper terminal, the bottom of the surge arrester body is fixed with a bottom cap threadedly connected, and the bottom cap is fixed with a fixing bolt.

[0010] As described above, in the multi-chamber integrated surge arrester: the insulator porcelain bushing and the surge arrester body are fastened together by end caps.

[0011] As described above, in the multi-chamber integrated surge arrester: the fixing bolt and the bottom cover are fastened to the surge arrester body by means of threads.

[0012] As described above, the multi-chamber integrated surge arrester includes a built-in ceramic body fixedly installed on the upper terminal, and a threaded ring is threadedly connected to the fastening part of the built-in ceramic body.

[0013] As described above, the multi-chamber integrated surge arrester includes an epoxy resin external ring fixedly connected to the end cover, and an internal fastening ring fixedly connected inside the end cover.

[0014] As described above, the multi-chamber integrated surge arrester includes a built-in galvanized plate fastened to the lower terminal, and a porcelain ring insulator is provided at the mounting point on the built-in galvanized plate.

[0015] As described above, in a multi-chamber integrated surge arrester: the porcelain ring insulator and the built-in galvanized plate are threadedly fastened to the lower terminal and the main body of the surge arrester.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the epoxy resin outer ring and end cap cover the outside of the insulator porcelain bushing, which can protect and wrap the insulator porcelain bushing. The insulator porcelain bushing has high mechanical strength due to the epoxy resin outer ring. The epoxy resin outer ring has more stable insulation performance, preventing linear cracks or local breakage on the surface of the "chamber" shell of the insulator porcelain bushing. The epoxy resin outer ring enhances the mechanical strength of the ceramic itself, avoids the ceramic from being hit by external impacts, and helps the integrated surge arrester to be firmly fixed together with the insulator porcelain bushing through the epoxy resin outer ring, which is suitable for specific high voltage scenarios.

[0017] The porcelain ring insulator is fixed on the built-in galvanized plate. The built-in galvanized plate and the porcelain ring insulator can be installed on the bottom cover to provide insulation protection for the lower terminal on the bottom cover. The upper terminal is fastened to the top of the surge arrester body through the built-in porcelain body thread, which can be used to connect and install the surge arrester body. The built-in porcelain body provides high temperature resistance at the connection between the surge arrester body and the upper terminal, preventing aging of the surge arrester body connection line, etc. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the double-layer protective component of this utility model;

[0020] Figure 3 This is a schematic diagram of the end cap structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the connection protection component of this utility model.

[0022] In the diagram: 1. Surge arrester body; 2. Upper terminal; 3. End cover; 4. Insulator porcelain sleeve; 5. Fixing bolt; 6. Bottom cover; 7. Lower terminal; 8. Internal porcelain body; 9. Threaded ring; 10. Epoxy resin external ring; 11. Internal fastening ring; 12. Porcelain ring insulator; 13. Internal galvanized plate. Detailed Implementation

[0023] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0026] Please see Figures 1-4 A multi-chamber integrated surge arrester is proposed, comprising a surge arrester body 1, an insulator porcelain sleeve 4, a lower terminal 7, and a surge arrester assembly.

[0027] An insulator porcelain sleeve 4 is installed at the fixing point on the main body 1 of the surge arrester. A lower terminal 7 is provided at the connection point at the bottom of the main body 1 of the surge arrester. The main body 1 of the surge arrester and the insulator porcelain sleeve 4 are provided at the fixing point on the surge arrester assembly. A double-layer protection assembly is installed on the insulator porcelain sleeve 4. A terminal protection assembly is provided on the lower terminal 7.

[0028] The insulator porcelain bushing 4 is installed in series with multiple chambers to divide the voltage on the arrester body 1, which decomposes the high voltage into multiple low voltage ranges and reduces the electric field strength of a single chamber. The arrester body 1 is connected and installed through the lower terminal 7.

[0029] Among them, the insulator porcelain sleeve 4 is fixed with an end cover 3, the top of the surge arrester body 1 is provided with an upper terminal 2, the bottom of the surge arrester body 1 is fixed with a bottom cover 6 threadedly connected, and the bottom cover 6 is fixed with a fixing bolt 5.

[0030] In this embodiment, the end cap 3 is threadedly fixed on the insulator porcelain sleeve 4. The insulator porcelain sleeve 4 and the end cap 3 are connected in series on the surge arrester body 1. The surge arrester body 1 is connected and installed through the upper terminal 2 and the lower terminal 7. The bottom cover 6 and the fixing bolt 5 are threadedly fastened to the lower terminal 7. The lower terminal 7 is fastened and snapped together through the bottom cover 6 and the fixing bolt 5.

[0031] Preferably, the insulator porcelain bushing 4 and the surge arrester body 1 are fastened together by the end cover 3. The insulator porcelain bushing 4 and the end cover 3 are fixedly installed on the surge arrester body 1 by means of threads. The insulator porcelain bushing 4 and the end cover 3 are independent spaces separated by insulating materials. Each chamber of the insulator porcelain bushing 4 contains a metal electrode and an arc extinguishing structure.

[0032] Preferably, the fixing bolt 5 and the bottom cover 6 are fastened to the surge arrester body 1 by means of threads, and the surge arrester body 1 and the lower terminal 7 are installed together by the threads of the bottom cover 6. By threading the fixing bolt 5 through the bottom cover 6, the surge arrester body 1 and the lower terminal 7 can be fastened.

[0033] Please refer to Figure 2 and Figure 3 In this embodiment, the double-layer protection component includes an internal ceramic body 8 fixedly installed on the upper terminal 2, and a threaded ring 9 is threadedly connected to the fastening part of the internal ceramic body 8.

[0034] The upper terminal 2 is installed inside the threaded ring 9 by the built-in ceramic body 8. The threaded ring 9 is fixedly connected to the surge arrester body 1. The upper terminal 2 is fastened to the top of the surge arrester body 1 by the built-in ceramic body 8, which can connect and install the surge arrester body 1. The built-in ceramic body 8 provides high temperature resistance at the connection between the surge arrester body 1 and the upper terminal 2, and prevents the aging of the connection line of the surge arrester body 1.

[0035] Please refer to Figure 2 and Figure 3 In this embodiment, the double-layer protective assembly also includes an epoxy resin external ring 10 fixedly connected to the end cap 3, and an internal fastening ring 11 fixedly connected inside the end cap 3.

[0036] An epoxy resin outer ring 10 is fixedly connected to the epoxy resin outer ring 10. The end cap 3 is connected in series to the insulator porcelain bushing 4 and the surge arrester body 1 via the built-in fastening ring 11. The epoxy resin outer ring 10 and the end cap 3 cover the outside of the insulator porcelain bushing 4, which can protect and wrap the insulator porcelain bushing 4. The insulator porcelain bushing 4 has higher mechanical strength through the epoxy resin outer ring 10. The epoxy resin outer ring 10 has more stable insulation performance and prevents linear cracks or local breakage on the surface of the "chamber" shell of the insulator porcelain bushing 4. The epoxy resin outer ring 10 enhances the mechanical strength of the ceramic itself and avoids the ceramic from being hit by external impacts. It helps to fasten the integrated surge arrester together with the insulator porcelain bushing 4 through the epoxy resin outer ring 10, which is used in specific high voltage scenarios.

[0037] Please refer to Figure 1 and Figure 4 In this embodiment, the terminal protection assembly includes a built-in galvanized plate 13 fastened to the lower terminal 7, and a ceramic ring insulator 12 is provided at the mounting point on the built-in galvanized plate 13.

[0038] The built-in galvanized plate 13 is fixedly installed inside the bottom cover 6. The bottom cover 6 and the built-in galvanized plate 13 can be securely installed on the lower terminal 7, so that the porcelain ring insulator 12 is fixed on the built-in galvanized plate 13. The built-in galvanized plate 13 and the porcelain ring insulator 12 can be protectively installed on the bottom cover 6, which can provide insulation protection for the lower terminal 7 on the bottom cover 6.

[0039] Preferably, the porcelain ring insulator 12 and the built-in galvanized plate 13 are threadedly fastened to the lower terminal 7 and the arrester body 1. The porcelain ring insulator 12 and the built-in galvanized plate 13 are fastened to the lower terminal 7 through the bottom cover 6. The lower terminal 7 can protect the arrester body 1.

[0040] As can be seen from the above, during use, the insulator porcelain sleeve 4 and the end cover 3 are connected in series on the surge arrester body 1. The surge arrester body 1 is connected and installed through the upper terminal 2 and the lower terminal 7. The bottom cover 6 and the fixing bolt 5 are threaded and tightened on the lower terminal 7. The bottom cover 6 and the built-in galvanized plate 13 can be tightly installed on the lower terminal 7, so that the porcelain ring insulator 12 is fixed on the built-in galvanized plate 13. The built-in galvanized plate 13 and the porcelain ring insulator 12 can be installed on the bottom cover 6 for protection, which can provide insulation protection for the lower terminal 7 on the bottom cover 6.

[0041] The epoxy resin outer ring 10 and end cap 3 cover the outside of the insulator porcelain sleeve 4, which can protect and wrap the insulator porcelain sleeve 4. The epoxy resin outer ring 10 improves the mechanical strength of the insulator porcelain sleeve 4 and makes the insulation performance more stable, preventing linear cracks or local breakage on the surface of the "chamber" shell of the insulator porcelain sleeve 4. The epoxy resin outer ring 10 enhances the mechanical strength of the ceramic itself. The threaded ring 9 is fixedly connected to the surge arrester body 1. The upper terminal 2 is fastened to the top of the surge arrester body 1 by the built-in ceramic body 8, which can connect and install the surge arrester body 1. The built-in ceramic body 8 provides high temperature resistance at the connection between the surge arrester body 1 and the upper terminal 2.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-chamber integrated surge arrester, comprising a surge arrester body (1), an insulator porcelain sleeve (4), a lower terminal (7), and a surge arrester assembly, wherein the insulator porcelain sleeve (4) is installed at a fixing point on the surge arrester body (1), the lower terminal (7) is provided at a connection point at the bottom end of the surge arrester body (1), and the surge arrester body (1) and the insulator porcelain sleeve (4) are provided at a fixing point on the surge arrester assembly, characterized in that: It also includes settings, A double-layer protective assembly is installed on the insulator porcelain sleeve (4); A terminal protection assembly is provided on the lower terminal (7); Among them, the insulator porcelain sleeve (4) is fixed with an end cap (3), the top of the surge arrester body (1) is provided with an upper terminal (2), the bottom of the surge arrester body (1) is threaded with a bottom cap (6), and the bottom cap (6) is fixed with a fixing bolt (5).

2. The multi-chamber integrated surge arrester according to claim 1, characterized in that, The insulator porcelain sleeve (4) and the surge arrester body (1) are fastened together by the end cap (3).

3. The multi-chamber integrated surge arrester according to claim 1, characterized in that, The fixing bolt (5) and the bottom cover (6) are fastened to the arrester body (1) by means of threads.

4. The multi-chamber integrated surge arrester according to claim 1, characterized in that, The double-layer protective assembly includes an internal ceramic body (8) fixedly installed on the upper terminal (2), and a threaded ring (9) is threadedly connected to the fastening part of the internal ceramic body (8).

5. A multi-chamber integrated surge arrester according to claim 4, characterized in that, The double-layer protective assembly also includes an epoxy resin external ring (10) fixedly connected to the end cap (3), and an internal fastening ring (11) is fixedly connected inside the end cap (3).

6. The multi-chamber integrated surge arrester according to claim 1, characterized in that, The terminal protection assembly includes a built-in galvanized plate (13) fastened to the lower terminal (7), and a ceramic ring insulator (12) is provided at the mounting point on the built-in galvanized plate (13).

7. A multi-chamber integrated surge arrester according to claim 6, characterized in that, The ceramic ring insulator (12) and the built-in galvanized plate (13) are threadedly fastened to the lower terminal (7) and the surge arrester body (1).

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