CN218940674U - Low-pulse high-surge protection piece - Google Patents
Low-pulse high-surge protection piece Download PDFInfo
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- CN218940674U CN218940674U CN202222625798.1U CN202222625798U CN218940674U CN 218940674 U CN218940674 U CN 218940674U CN 202222625798 U CN202222625798 U CN 202222625798U CN 218940674 U CN218940674 U CN 218940674U
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Abstract
The utility model relates to a low-pulse high-surge protective piece, which comprises at least two electrode plates which are sequentially arranged, wherein a cavity ceramic tube is arranged between every two adjacent electrode plates, and the cavity ceramic tube is close to openings on two sides of the adjacent electrode plates; the electrode plate at one side of each cavity ceramic tube is provided with a convex ring, and the convex rings are inserted into the opening at one side of the cavity ceramic tube in a sealing way; the surface of the electrode plate, which is positioned in the convex ring, is coated with an emitting material; the electrode plates at the other side of each cavity ceramic tube are provided with bosses which are inserted into the openings at the other side of the cavity ceramic tubes in a sealing way; the top of the boss is also coated with an emissive material; according to the utility model, the electrode plate is fixed on one side of the cavity ceramic tube through the convex ring on one side, and the emitting material is arranged on the inner side of the convex ring, so that the interelectrode distance is increased as much as possible, the discharge electric field is changed, and the ionization speed is improved, so that the discharge voltage is reduced, and the ceramic tube is resistant to high surge and suitable for low-voltage occasions.
Description
Technical Field
The utility model relates to the technical field of anti-surge devices, in particular to a low-pulse high-surge protection piece.
Background
Surge, also called surge, is an instantaneous overvoltage that exceeds the normal operating voltage. Essentially, a surge is a sharp pulse that occurs in only a few parts per million of time. The reasons for the possible surge are: heavy equipment, short circuits, power switching or large engines. And the product containing the surge blocking device can effectively absorb burst huge energy so as to protect the connecting equipment from being damaged.
At present, the surge protection piece has low pulse but small surge resistance, has large surge resistance but high pulse, and lacks a surge protection piece which can resist high surge and has low pulse.
Disclosure of Invention
Based on the above description, the utility model provides a low-pulse high-surge protection piece, an electrode plate is fixed on one side of a cavity ceramic tube through a convex ring on one side, and an emitting material is arranged on the inner side of the convex ring, so that the interelectrode distance is increased as much as possible, a discharge electric field is changed, and the ionization speed is improved, so that the discharge voltage is reduced, and the high-surge protection piece is resistant to high surges and is suitable for low-voltage occasions.
The technical scheme for solving the technical problems is as follows: the low-pulse high-surge protective piece comprises at least two electrode plates which are sequentially arranged, wherein a cavity ceramic tube is arranged between every two adjacent electrode plates, and the cavity ceramic tube is close to openings on two sides of the adjacent electrode plates;
the electrode plates at one side of each cavity ceramic tube are provided with convex rings, and the convex rings are inserted into one side opening of each cavity ceramic tube in a sealing manner; the surface of the electrode plate, which is positioned in the convex ring, is coated with an emitting material;
the electrode plates at the other side of each cavity ceramic tube are provided with bosses which are inserted into the openings at the other side of the cavity ceramic tubes in a sealing manner; the top of the boss is also coated with the emissive material.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the height of the boss is adapted to the discharge voltage of the guard.
Further, the diameter of the outer side wall of the convex ring gradually decreases towards the end part, the diameter of the outer side wall of the end part of the convex ring is smaller than the diameter of the inner wall of the cavity ceramic tube, and the diameter of the outer side wall of the root part of the convex ring is larger than the diameter of the inner wall of the cavity ceramic tube.
Further, the diameter of the outer side wall of the boss gradually decreases towards the end part, the diameter of the outer side wall of the boss end part is smaller than the diameter of the inner wall of the cavity ceramic tube, and the diameter of the outer side wall of the boss root part is larger than the diameter of the inner wall of the cavity ceramic tube.
Further, a first grid which is concave inwards is arranged on the surface, located in the convex ring, of the electrode plate, and the emitting material is coated in the first grid.
Further, the first grid is formed by arranging a plurality of square grooves in a plurality of rows and a plurality of columns, and the sectional area of each square groove is gradually reduced from the opening to the bottom.
Further, a second grid which is concave inwards is arranged at the top of the boss, and the emitting material is coated in the second grid.
Further, the second grid is formed by arranging a plurality of square grooves in a plurality of rows and a plurality of columns, and the sectional area of each square groove is gradually reduced from the opening to the bottom.
Furthermore, the cavity ceramic tubes are filled with high-purity argon.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
1. according to the utility model, the electrode plate is fixed on one side of the cavity ceramic tube through the convex ring on one side, and the emitting material is arranged on the inner side of the convex ring, so that the interelectrode distance is increased as much as possible, the discharge electric field is changed, and the ionization speed is improved, so that the discharge voltage is reduced, and the ceramic tube is resistant to high surge and suitable for low-voltage occasions;
2. through setting up the plateau at the opposite side of cavity ceramic tube, the height of plateau can be according to the required discharge voltage of protector and design, is convenient for design the protector that does not need discharge voltage.
3. Through setting up first net and second net, the emission material of being convenient for adheres to prevent to sputter to the pipe wall of cavity ceramic pipe and cause the influence to the product electric property when passing through the heavy current.
Drawings
Fig. 1 is a schematic structural diagram of a low-pulse high-surge protection member according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of a convex ring according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a boss according to an embodiment of the present utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. an electrode sheet; 11. a first electrode sheet; 12. a second electrode sheet; 13. a third electrode sheet; 14. a convex ring; 15. a first grid; 16. a boss; 17. a second grid; 2. a cavity ceramic tube; 21. a first ceramic tube; 22. and a second ceramic tube.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
The low-pulse high-surge protection piece comprises at least two electrode plates 1 which are sequentially arranged, and a cavity ceramic tube 2 is arranged between every two adjacent electrode plates 1.
In this embodiment, the protection member includes three electrode sheets 1 and two cavity ceramic tubes 2, the three electrode sheets 1 are respectively a first electrode sheet 11, a second electrode sheet 12 and a third electrode sheet 13 which are sequentially arranged along a straight line, and the two cavity ceramic tubes 2 are respectively a first ceramic tube 21 and a second ceramic tube 22.
The first ceramic tube 21 is disposed between the first electrode sheet 11 and the second electrode sheet 12, and the second ceramic tube 22 is disposed between the second electrode sheet 12 and the third electrode sheet 13. And the axial directions of the first ceramic tube 21 and the second ceramic tube 22 are parallel to the connecting line direction of the first electrode plate 11, the second electrode plate 12 and the third electrode plate 13, and both ends of the first ceramic tube 21 and the second ceramic tube 22 are open.
The first electrode sheet 11 is provided with a collar 14 on a side thereof adjacent to the first ceramic tube 21, and the collar 14 is sealingly inserted into the first ceramic tube 21. The diameter of the outer side wall of the convex ring 14 gradually decreases towards the end, and the diameter of the outer side wall of the end of the convex ring 14 is smaller than the diameter of the inner wall of the first ceramic tube 21, and the diameter of the outer side wall of the root of the convex ring 14 is larger than the diameter of the inner wall of the first ceramic tube 21, so that the convex ring 14 is conveniently inserted into the first ceramic tube 21, and the first electrode plate 11 and the first ceramic tube 21 are connected through interference fit of the convex ring 14 and the first ceramic tube 21.
A boss 16 is provided on a side of the second electrode sheet 12 adjacent to the first ceramic tube 21, and the boss 16 is sealingly inserted into the first ceramic tube 21. The diameter of the outer side wall of the boss 16 gradually decreases towards the end, and the diameter of the outer side wall of the end of the boss 16 is smaller than the diameter of the inner wall of the first ceramic tube 21, and the diameter of the outer side wall of the root of the boss 16 is larger than the diameter of the inner wall of the first ceramic tube 21, so that the boss 16 is conveniently inserted into the first ceramic tube 21, and the second electrode plate 12 and the first ceramic tube 21 are connected through interference fit of the boss 16 and the first ceramic tube 21.
Similarly, a convex ring 14 is also arranged on one side of the second electrode plate 12 close to the second ceramic tube 22, a boss 16 is also arranged on one side of the third electrode plate 13 close to the second ceramic tube 22, and the convex ring 14 and the boss 16 are respectively inserted into two ends of the second ceramic tube 22 in a sealing manner. The diameter of the outer side wall of the end part of the convex ring 14 is smaller than the diameter of the inner wall of the second ceramic tube 22, and the diameter of the outer side wall of the root part of the convex ring 14 is larger than the diameter of the inner wall of the second ceramic tube 22. The diameter of the outer side wall of the end part of the boss 16 is smaller than the diameter of the inner wall of the second ceramic tube 22, and the diameter of the outer side wall of the root part of the boss 16 is larger than the diameter of the inner wall of the second ceramic tube 22.
The surfaces of the first electrode plate 11 and the second electrode plate 12, which are positioned on the inner side of the convex ring 14, are respectively provided with a first grid 15 which is concave inwards, the first grid 15 is formed by arranging a plurality of square grooves in a plurality of rows and columns, and the sectional area of each square groove is gradually reduced from an opening to the bottom. The first mesh 15 is coated with an emissive material.
The top surfaces of the bosses 16 of the second electrode plate 12 and the third electrode plate 13 are respectively provided with a second inward concave grid 17, the second grid 17 is also formed by arranging a plurality of square grooves in a plurality of rows and columns, and the sectional area of each square groove is gradually reduced from an opening to the bottom. The second mesh 17 is also coated with an emissive material.
By providing the first mesh 15 and the second mesh 17, the adhesion of the emission material is facilitated, thereby preventing the emission material from being sputtered to the wall of the cavity ceramic tube 2 to affect the electrical performance of the product when a large current is passed.
In addition, a plurality of second electrode plates 12 and cavity ceramic tubes 2 can be additionally arranged, and the additional second electrode plates 12 and the cavity ceramic tubes 2 are sequentially arranged, so that the anti-surge capacity of the protective piece can be further improved.
In this embodiment, the electrode plate 1 is fixed on one side of the cavity ceramic tube 2 by the convex ring 14 on one side, and the emitting material is arranged on the inner side of the convex ring 14, so that the inter-electrode distance is increased as much as possible, the discharge electric field is changed, the ionization speed is increased, the discharge voltage is reduced, and the ceramic tube is resistant to high surge and suitable for low-voltage occasions. In addition, the first ceramic tube 21 and the second ceramic tube 22 may be filled with high-purity argon, and the existing protection member is usually filled with neon to obtain a low breakdown voltage.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (9)
1. The low-pulse high-surge protective piece is characterized by comprising at least two electrode plates which are sequentially arranged, wherein a cavity ceramic tube is arranged between every two adjacent electrode plates, and the cavity ceramic tube is close to openings on two sides of the adjacent electrode plates;
the electrode plates at one side of each cavity ceramic tube are provided with convex rings, and the convex rings are inserted into one side opening of each cavity ceramic tube in a sealing manner; the surface of the electrode plate, which is positioned in the convex ring, is coated with an emitting material;
the electrode plates at the other side of each cavity ceramic tube are provided with bosses which are inserted into the openings at the other side of the cavity ceramic tubes in a sealing manner; the top of the boss is also coated with the emissive material.
2. The low pulse high surge protector of claim 1, wherein the height of the boss is adapted to the discharge voltage of the protector.
3. The low pulse high surge protector of claim 1, wherein the outer sidewall of the collar tapers in diameter toward the end and the outer sidewall of the collar end has a diameter less than the diameter of the inner wall of the cavity ceramic tube and the outer sidewall of the collar root has a diameter greater than the diameter of the inner wall of the cavity ceramic tube.
4. The low pulse high surge protector of claim 1, wherein the outer sidewall of the boss tapers in diameter toward the end and the outer sidewall of the boss end is smaller in diameter than the inner wall of the cavity ceramic tube and the outer sidewall of the boss root is larger in diameter than the inner wall of the cavity ceramic tube.
5. A low pulse high surge protector according to claim 1 wherein said electrode pads are provided with first inwardly concave mesh on a surface thereof located within said collar, said emissive material being coated within said first mesh.
6. The low pulse high surge protector of claim 5, wherein the first grid is comprised of a plurality of square grooves arranged in a plurality of rows and columns, and wherein the cross-sectional area of each square groove is gradually reduced from the opening to the bottom.
7. The low pulse high surge protector of claim 1, wherein the top of the boss is provided with an inwardly concave second mesh within which the emissive material is coated.
8. The low pulse high surge protector of claim 7, wherein the second grid is comprised of a plurality of square grooves arranged in a plurality of rows and columns, and wherein the cross-sectional area of each square groove is gradually reduced from the opening to the bottom.
9. The low pulse high surge protector of claim 1, wherein the cavity ceramic tubes are filled with high purity argon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222625798.1U CN218940674U (en) | 2022-09-30 | 2022-09-30 | Low-pulse high-surge protection piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222625798.1U CN218940674U (en) | 2022-09-30 | 2022-09-30 | Low-pulse high-surge protection piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218940674U true CN218940674U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222625798.1U Active CN218940674U (en) | 2022-09-30 | 2022-09-30 | Low-pulse high-surge protection piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218940674U (en) |
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2022
- 2022-09-30 CN CN202222625798.1U patent/CN218940674U/en active Active
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