Lightning arrester pressure release structure and lightning arrester

Abstract

The lightning arrester pressure release structure is arranged at the end part of a lightning arrester core body and specifically comprises a cover plate, an end tab and an explosion-proof plate, the cover plate is arranged at the end part of the lightning arrester core body, the cover plate is provided with an explosion-proof hole, and the end tab is arranged at the end part of the lightning arrester core body. The end tab is arranged on one side, far away from the lightning arrester core body, of the cover plate, the explosion-proof plate is arranged between the cover plate and the end tab, the explosion-proof plate is attached to the cover plate, the explosion-proof plate is arranged between the cover plate and the end tab, the explosion-proof plate is attached to the cover plate, and a preset distance is formed between the end tab and the explosion-proof plate. Compared with the prior art, the lightning arrester pressure release structure disclosed by the utility model can release and guide the spraying direction of an electric arc, so that equipment around the lightning arrester is prevented from being damaged, and personal safety can be protected from being damaged.

Description

Technical Field

[0001] This utility model belongs to the field of surge arrester technology, and specifically relates to a surge arrester pressure relief structure and surge arrester. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from high transient overvoltage hazards. During operation, surge arresters may explode due to various reasons. The fragments of the explosion can cause damage to other electrical equipment in the vicinity and even threaten personal safety.

[0003] Therefore, how to protect the equipment around the surge arrester and ensure personal safety is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a surge arrester pressure relief structure that can effectively protect the equipment around the surge arrester and personal safety from harm.

[0005] Another objective of this invention is to provide a surge arrester.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A surge arrester pressure relief structure, disposed at the end of the surge arrester core, includes:

[0008] A cover plate is disposed at the end of the surge arrester core, and the cover plate is provided with explosion-proof holes;

[0009] An arc-starting plate is disposed on the side of the cover plate away from the surge arrester core.

[0010] An explosion-proof plate is disposed between the cover plate and the arc-inducing plate. The explosion-proof plate is in close contact with the cover plate, and there is an arc passage space between the arc-inducing plate and the explosion-proof plate.

[0011] Optionally, the cover plate may also have a fixing groove for fixing the explosion-proof plate.

[0012] Optionally, the fixing groove is shaped around the explosion-proof hole so that the explosion-proof plate can cover the explosion-proof hole.

[0013] Optionally, there are multiple explosion-proof holes, and the multiple explosion-proof holes are arranged around the center of the cover plate.

[0014] Optionally, there are four explosion-proof holes, which are symmetrically distributed in pairs with respect to the center of the cover plate.

[0015] Optionally, the explosion-proof plate is made of epoxy fiberglass cloth;

[0016] The thickness of the explosion-proof plate is 0.6mm-0.8mm.

[0017] Optionally, the surge arrester core includes a surge arrester core column and a surge arrester outer sleeve, wherein the surge arrester outer sleeve is disposed on the outside of the surge arrester core column.

[0018] Optionally, the surge arrester housing includes an insulating cylinder, a flange, and an umbrella sleeve;

[0019] The insulating cylinder is wrapped around the core column of the surge arrester;

[0020] There are two flanges, which are respectively located at both ends of the insulating cylinder;

[0021] There are two umbrella covers, which are respectively disposed at both ends of the flange;

[0022] There are two cover plates, which are respectively disposed at both ends of the umbrella cover.

[0023] Optionally, the umbrella cover is made of rubber silicone material.

[0024] A surge arrester, comprising a surge arrester pressure relief structure as described in any of the above claims;

[0025] It also includes a surge arrester core, wherein there are two surge arrester pressure relief structures, which are respectively located at both ends of the surge arrester core.

[0026] As can be seen from the above technical solutions, when an arc is generated due to a fault inside the surge arrester, the huge thermal impact generated by the arc can pass through the explosion-proof hole on the cover plate, break through the explosion-proof plate, and be released in the direction of the arc-initiating plate. Under the guidance of the arc-initiating plate, the arc is ejected in the space between the explosion-proof plate and the arc-initiating plate in the preset direction.

[0027] Compared with the prior art, the surge arrester pressure relief structure disclosed in this utility model embodiment can release and guide the direction of the electric arc, which not only protects the equipment around the surge arrester from damage, but also protects personal safety from harm. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 A schematic diagram of the surge arrester pressure relief structure provided in an embodiment of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the surge arrester housing provided in an embodiment of the present utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the cover plate provided in an embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the explosion-proof plate provided in an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Surge arrester core column; 200. Surge arrester outer casing; 201. Insulating cylinder; 202. Flange; 203. Umbrella sleeve; 300. Cover plate; 301. Explosion-proof hole; 302. Fixing groove; 400. Arc-starting plate; 500. Explosion-proof plate. Detailed implementation method.

[0035] In view of this, the core of this utility model is to provide a surge arrester pressure relief structure that can effectively protect the equipment around the surge arrester and personal safety from harm.

[0036] Another core aspect of this invention is that it provides a surge arrester.

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Please refer to... Figures 1 to 4 .

[0038] Please refer to Figure 1 The surge arrester pressure relief structure disclosed in this embodiment of the utility model is disposed at the end of the surge arrester core and specifically includes a cover plate 300, an arc-starting plate 400, and an explosion-proof plate 500. The cover plate 300 is disposed at the end of the surge arrester core and has an explosion-proof hole 301. The arc-starting plate 400 is disposed on the side of the cover plate 300 away from the surge arrester core. The explosion-proof plate 500 is disposed between the cover plate 300 and the arc-starting plate 400 and is in close contact with the cover plate 300. The explosion-proof plate 500 is disposed between the cover plate 300 and the arc-starting plate 400 and is in close contact with the cover plate 300. There is a preset distance between the arc-starting plate 400 and the explosion-proof plate 500.

[0039] When an electric arc is generated due to a fault inside the surge arrester, the huge thermal impact generated by the electric arc can pass through the explosion-proof hole 301 on the cover plate 300, break through the explosion-proof plate 500, and be released in the direction of the arc-initiating plate 400. Under the guidance of the arc-initiating plate 400, the electric arc is ejected in the space between the explosion-proof plate 500 and the arc-initiating plate 400 in the preset direction.

[0040] Compared with the prior art, the surge arrester pressure relief structure disclosed in this utility model embodiment can release and guide the direction of the electric arc, which not only protects the equipment around the surge arrester from damage, but also protects personal safety from harm.

[0041] It should be noted that the cover plate 300, arc-starting plate 400 and explosion-proof plate 500 disclosed in this embodiment of the utility model are two in total, and are respectively disposed at both ends of the surge arrester core.

[0042] As a further embodiment, please refer to Figure 3 and Figure 4 The cover plate 300 disclosed in this embodiment of the utility model is also provided with a fixing groove 302 for fixing the explosion-proof plate 500.

[0043] The explosion-proof plate 500 is fixed in the fixing groove 302 to isolate the surge arrester core from the outside. When the electric arc is ejected, it can easily break through the explosion-proof plate 500 to release the arc.

[0044] This embodiment of the utility model does not limit the way the fixing groove 302 is set on the cover plate 300. Any setting method that meets the usage requirements of this utility model is within the protection scope of this utility model.

[0045] As one embodiment, the fixing groove 302 disclosed in this utility model embodiment is shaped around the explosion-proof hole 301 so that the explosion-proof plate 500 can cover the explosion-proof hole 301.

[0046] The explosion-proof hole 301 can be circular, square, or other shapes. Correspondingly, the fixing groove 302 can be circular, square, or other shapes.

[0047] This embodiment of the invention does not limit the number of explosion-proof holes 301 provided. As long as the number meets the requirements for use of this invention, it is within the protection scope of this invention.

[0048] The explosion-proof hole 301 can be one or more. When there are multiple explosion-proof holes 301, the multiple explosion-proof holes 301 are arranged around the center of the cover plate 300.

[0049] The explosion-proof holes 301 disclosed in this embodiment of the utility model are four in number, and the explosion-proof holes 301 are symmetrically distributed in pairs with respect to the center of the cover plate 300.

[0050] In one embodiment, the surge arrester pressure relief structure disclosed in this utility model embodiment can be provided with a fixing groove 302 around each explosion-proof hole 301. With this arrangement, the number of explosion-proof holes 301 is the same as the number of fixing grooves 302.

[0051] As another embodiment, in the surge arrester pressure relief structure disclosed in this utility model embodiment, a fixing groove 302 can be provided around all the explosion-proof holes 301. With this configuration, no matter how many explosion-proof holes 301 are provided, only one fixing groove 302 needs to be provided.

[0052] This embodiment of the invention does not limit the material of the explosion-proof plate 500. Any material that meets the requirements of this invention is within the protection scope of this invention.

[0053] As one embodiment, the explosion-proof plate 500 disclosed in this utility model embodiment is made of epoxy glass cloth.

[0054] This embodiment of the invention does not limit the thickness of the explosion-proof plate 500. Any material that meets the requirements of this invention is within the protection scope of this invention.

[0055] As one embodiment, the thickness of the explosion-proof plate 500 disclosed in this utility model embodiment is 0.6mm-0.8mm.

[0056] It should be noted that the surge arrester core includes a surge arrester core column 100 and a surge arrester outer sleeve 200, with the surge arrester outer sleeve 200 located on the outside of the surge arrester core column 100.

[0057] The surge arrester core column 100 specifically includes a resistor sheet assembly, a metal pad, a resistor sheet fixing rod, a fixing plate, and a compression spring, etc. Since this structure is existing technology, this utility model embodiment will not describe it in detail.

[0058] This utility model embodiment does not limit the specific structure of the surge arrester housing 200. Any structure that meets the usage requirements of this utility model is within the protection scope of this utility model.

[0059] As one embodiment, please refer to Figure 2 The surge arrester housing 200 disclosed in this embodiment of the present invention includes an insulating cylinder 201, a flange 202, and a shed 203. The insulating cylinder 201 is wrapped around the surge arrester core column 100. There are two flanges 202, which are respectively disposed at both ends of the insulating cylinder 201. There are two sheds 203, which are respectively disposed at both ends of the flanges 202. There are two cover plates 300, which are respectively disposed at both ends of the sheds 203.

[0060] This utility model embodiment does not limit the specific material of the umbrella cover 203. Any material that meets the usage requirements of this utility model is within the protection scope of this utility model.

[0061] As a preferred embodiment, the umbrella cover 203 disclosed in this utility model embodiment is made of rubber silicone material.

[0062] This utility model embodiment also discloses a surge arrester, including a surge arrester pressure relief structure as disclosed in any of the above embodiments, and a surge arrester core, wherein there are two surge arrester pressure relief structures, which are respectively disposed on both sides of the surge arrester core.

[0063] Since the surge arrester adopts the surge arrester pressure relief structure disclosed in the present utility model embodiment, the surge arrester also has the technical advantages of the surge arrester pressure relief structure disclosed in the present utility model embodiment, which will not be described in detail in the present utility model embodiment.

[0064] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0065] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A surge arrester pressure relief structure, disposed at the end of the surge arrester core, characterized in that, include: A cover plate is disposed at the end of the surge arrester core, and the cover plate is provided with explosion-proof holes; An arc-starting plate is disposed on the side of the cover plate away from the surge arrester core. An explosion-proof plate is disposed between the cover plate and the arc-inducing plate. The explosion-proof plate is in close contact with the cover plate, and there is an arc passage space between the arc-inducing plate and the explosion-proof plate.

2. The surge arrester pressure relief structure according to claim 1, characterized in that, The cover plate is also provided with a fixing groove for fixing the explosion-proof plate.

3. The surge arrester pressure relief structure according to claim 2, characterized in that, The fixing groove is shaped around the explosion-proof hole so that the explosion-proof plate can cover the explosion-proof hole.

4. The surge arrester pressure relief structure according to claim 1, characterized in that, There are multiple explosion-proof holes, and the multiple explosion-proof holes are arranged around the center of the cover plate.

5. The surge arrester pressure relief structure according to claim 4, characterized in that, There are four explosion-proof holes, which are symmetrically distributed in pairs with respect to the center of the cover plate.

6. The surge arrester pressure relief structure according to claim 1, characterized in that, The explosion-proof plate is made of epoxy glass cloth. The thickness of the explosion-proof plate is 0.6mm-0.8mm.

7. The surge arrester pressure relief structure according to claim 1, characterized in that, The surge arrester core includes a surge arrester core column and a surge arrester outer sleeve, with the surge arrester outer sleeve disposed on the outside of the surge arrester core column.

8. The surge arrester pressure relief structure according to claim 7, characterized in that, The surge arrester housing includes an insulating cylinder, a flange, and an umbrella sleeve; The insulating cylinder is wrapped around the core column of the surge arrester; There are two flanges, which are respectively located at both ends of the insulating cylinder; There are two umbrella covers, which are respectively disposed at both ends of the flange; There are two cover plates, which are respectively disposed at both ends of the umbrella cover.

9. The surge arrester pressure relief structure according to claim 8, characterized in that, The umbrella cover is made of rubber silicone material.

10. A surge arrester, characterized in that, Includes the surge arrester pressure relief structure as described in any one of claims 1-9; It also includes a surge arrester core, wherein there are two surge arrester pressure relief structures, which are respectively located at both ends of the surge arrester core.

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