CN217086525U

CN217086525U - Paster type tripolar ceramic gas discharge tube

Info

Publication number: CN217086525U
Application number: CN202123353447.1U
Authority: CN
Inventors: 汪元
Original assignee: Jiangsu Dongguang Electronics Co ltd
Current assignee: Jiangsu Dongguang Electronics Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-29
Anticipated expiration: 2031-12-28

Abstract

The utility model provides a patch type tripolar ceramic gas discharge tube, which comprises a first electrode, a second ceramic chip, a third electrode, a second electrode and a first ceramic chip which are arranged in sequence, wherein the first electrode, the third electrode and the second electrode are disc-shaped sheet electrodes with annular concave-convex surfaces, and the second ceramic chip and the first ceramic chip are annular; the first electrode, the second ceramic chip and the third electrode are encircled to form a second discharge chamber; the second electrode, the third electrode, the first ceramic chip and the second ceramic chip are encircled to form a first discharge chamber. The utility model discloses from structural brand-new design, change conventional circular electrode into thin, through bending, dash the type, produce different vertical dimension, when guaranteeing electrical parameter, also can compromise mechanical strength to reach the purpose of reduction product size.

Description

Paster type tripolar ceramic gas discharge tube

Technical Field

The utility model belongs to the technical field of the overvoltage protection product, concretely relates to tripolar ceramic gas discharge tube of paster type.

Background

The gas discharge tube is an overvoltage and overcurrent protection device, is widely applied to equipment such as a traffic signal system, a computer data system, a router, a household television set top box, a switching power supply and the like, and ensures the safe operation of electronic instruments so as to prevent the equipment from being subjected to overvoltage and overcurrent impact in a circuit and from generating faults.

The line requirements are more and more tending towards miniaturization and integration, and the design of gas discharge tubes is also moving in this direction.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tripolar ceramic gas discharge tube of paster type to the problem of miniaturization, the demand that integrates to gas discharge tube.

The technical scheme of the utility model is that:

the utility model provides a patch type tripolar ceramic gas discharge tube, which comprises a first electrode, a second ceramic chip, a third electrode, a second electrode and a first ceramic chip which are arranged in sequence, wherein the first electrode, the third electrode and the second electrode are disc-shaped sheet electrodes with annular concave-convex surfaces, and the second ceramic chip and the first ceramic chip are annular;

the upper surface of the second ceramic chip is welded on the lower surface of the first electrode, the outer annular convex surface of the third electrode is welded with the inner end of the lower surface of the second ceramic chip, and the first electrode, the second ceramic chip and the third electrode are enclosed to form a second discharge chamber;

the second electrode has two annular convex surfaces, the annular protrusion located on the outer ring is welded with the outer end of the lower surface of the second ceramic chip, the annular protrusion located on the inner ring is welded with the outer end of the upper surface of the first ceramic chip, the inner end of the upper surface of the first ceramic chip is welded with the bottom of the annular concave surface on the inner side of the third electrode, and the second electrode, the third electrode, the first ceramic chip and the second ceramic chip are connected into a first discharge chamber in a surrounding mode.

Further, the first electrode and the second ceramic chip are connected through a fifth welding flux; the lower surface of the second ceramic chip is connected with the second electrode and the third electrode through a third solder and a fourth solder respectively; the upper surface of the first ceramic chip is connected with the third electrode and the second electrode through first welding flux and second welding flux respectively.

Furthermore, the first electrode, the second electrode and the third electrode are all iron-nickel or oxygen-free copper electrodes; the thickness is 0.45-0.8 mm.

Further, the thickness of the first ceramic chip and the second ceramic chip is 0.5-1.5 mm.

Furthermore, the fifth solder, the third solder, the fourth solder, the first solder and the second solder all adopt silver-copper alloy, and the temperature is 800 ℃ and the solder melting point is more than 700 ℃.

The utility model has the advantages that:

the utility model discloses from structural brand-new design, change conventional circular electrode into thin, through bending, dash the type, produce different vertical dimension, when guaranteeing electrical parameter, also can compromise mechanical strength to reach the purpose of reduction product size.

The utility model discloses during the use, exert the voltage that lasts the increase that a variable can change between this gas discharge tube's first electrode and third electrode or between second electrode and third electrode, when this voltage reaches breakdown voltage, inside gas begins to discharge, discharge tube becomes the low resistance state from the high resistance state, gas discharge tube switches on, compare bigger thunderbolt surge current with conventional structure and can obtain releasing fast, the protection is normally worked with the parallelly connected rear end equipment in gas discharge tube both ends, do not receive the influence of thunderbolt surge.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.

Fig. 1 is an axial sectional view of the present invention.

Fig. 2 is an exploded view of the present invention.

In the figure: 1. a first electrode; 2. a second electrode; 3. a third electrode; 4. a first tile; 5. a second tile; 7. a first discharge chamber; 8. a second discharge chamber;

6-1, first solder; 6-2, second solder; 6-3, third solder; 6-4, fourth solder; 6-5 and fifth solder.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein.

As shown in fig. 1, a patch type tripolar ceramic gas discharge tube comprises a first electrode 1, a second ceramic tile 5, a third electrode 3, a second electrode 2 and a first ceramic tile 4 which are arranged in sequence, wherein the first electrode 1, the third electrode 3 and the second electrode 2 are disc-shaped flaky electrodes with annular concave-convex surfaces, and the second ceramic tile 5 and the first ceramic tile 4 are annular;

the upper surface of the second ceramic chip 5 is welded on the lower surface of the first electrode 1, the outer annular convex surface of the third electrode 3 is welded with the inner end of the lower surface of the second ceramic chip 5, and the first electrode 1, the second ceramic chip 5 and the third electrode 3 are encircled to form a second discharge chamber 8;

the second electrode 2 is provided with two annular convex surfaces, the annular bulge positioned on the outer ring is welded with the outer end of the lower surface of the second ceramic chip 5, the annular bulge positioned on the inner ring is welded with the outer end of the upper surface of the first ceramic chip 4, the inner end of the upper surface of the first ceramic chip 4 is welded with the bottom of the annular concave surface on the inner side of the third electrode 3, and the second electrode 2, the third electrode 3, the first ceramic chip 4 and the second ceramic chip 5 are encircled to form a first discharge chamber 7.

Wherein: the first electrode 1, the second electrode 2 and the third electrode 3 are all iron-nickel or oxygen-free copper electrodes; the thickness is 0.45-0.8 mm; the thickness of the first ceramic chip 4 and the second ceramic chip 5 is 0.5-1.5 mm; the fifth solder 6-5, the third solder 6-3, the fourth solder 6-4, the first solder 6-1 and the second solder 6-2 are all made of silver-copper alloy, and the temperature is 800 ℃ and the solder melting point is 700 ℃.

During the specific assembly:

as shown in fig. 2, which is an exploded view of the triode of the present invention, the triode is assembled by a first electrode 1, a fifth solder 6-5, a second ceramic chip 5, a third solder 6-3, a fourth solder 6-4, a third electrode 3, a second electrode 2, a second solder 6-2, a first solder 6-1, and a first ceramic chip 4 concentrically and heated to 800-830 ℃ to form a first sealed discharge chamber 7 and a second sealed discharge chamber 8. As shown in fig. 1, during the period, neon, a mixture of argon and hydrogen, in which the filling ratio of hydrogen is 18% of the cavity ratio, argon is 41% of the cavity ratio, and neon is 41% of the cavity ratio, are filled in the first discharge chamber 7 and the second discharge chamber 8.

When the gas discharge tube is used, a variable voltage which is continuously increased is applied between the first electrode 1 and the third electrode 3 of the gas discharge tube or between the second electrode 2 and the third electrode 3, when the voltage reaches breakdown voltage, internal gas starts to discharge, the discharge tube is changed from a high-resistance state to a low-resistance state, the gas discharge tube is conducted, larger lightning surge current can be quickly discharged compared with a conventional structure, and the rear-end equipment connected with the two ends of the gas discharge tube in parallel is protected from normal operation and is not influenced by lightning surge.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A patch type tripolar ceramic gas discharge tube is characterized by comprising a first electrode (1), a second ceramic chip (5), a third electrode (3), a second electrode (2) and a first ceramic chip (4) which are sequentially arranged, wherein the first electrode (1), the third electrode (3) and the second electrode (2) are disc-shaped sheet electrodes with annular concave-convex surfaces, and the second ceramic chip (5) and the first ceramic chip (4) are annular;

the upper surface of the second ceramic chip (5) is welded on the lower surface of the first electrode (1), the outer annular convex surface of the third electrode (3) is welded with the inner end of the lower surface of the second ceramic chip (5), and the first electrode (1), the second ceramic chip (5) and the third electrode (3) are encircled to form a second discharge chamber (8);

the second electrode (2) is provided with two annular convex surfaces, the annular bulge positioned on the outer ring is welded with the outer end of the lower surface of the second ceramic chip (5), the annular bulge positioned on the inner ring is welded with the outer end of the upper surface of the first ceramic chip (4), the inner end of the upper surface of the first ceramic chip (4) is welded with the bottom of the annular concave surface on the inner side of the third electrode (3), and the second electrode (2), the third electrode (3), the first ceramic chip (4) and the second ceramic chip (5) are connected into a first discharge chamber (7) in a surrounding manner.

2. The patch-type triode ceramic gas discharge tube of claim 1, wherein: the first electrode (1) and the second ceramic chip (5) are connected through a fifth solder (6-5); the lower surface of the second ceramic chip (5) is connected with the second electrode (2) and the third electrode (3) through third welding flux (6-3) and fourth welding flux (6-4) respectively; the upper surface of the first ceramic chip (4) is connected with the third electrode (3) and the second electrode (2) through first solder (6-1) and second solder (6-2) respectively.

3. The patch-type triode ceramic gas discharge tube of claim 1, wherein: the first electrode (1), the second electrode (2) and the third electrode (3) are all iron-nickel or oxygen-free copper electrodes; the thickness is 0.45-0.8 mm.

4. The patch-type triode ceramic gas discharge tube of claim 1, wherein: the thickness of the first ceramic chip (4) and the second ceramic chip (5) is 0.5-1.5 mm.

5. A patch type three-pole ceramic gas discharge tube as claimed in claim 2, wherein: the fifth solder (6-5), the third solder (6-3), the fourth solder (6-4), the first solder (6-1) and the second solder (6-2) are all made of silver-copper alloy, and the solder melting point is higher than 800 ℃ and higher than 700 ℃.