CN208508240U - A kind of ceramic discharge diode - Google Patents
A kind of ceramic discharge diode Download PDFInfo
- Publication number
- CN208508240U CN208508240U CN201820869471.XU CN201820869471U CN208508240U CN 208508240 U CN208508240 U CN 208508240U CN 201820869471 U CN201820869471 U CN 201820869471U CN 208508240 U CN208508240 U CN 208508240U
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- China
- Prior art keywords
- lower electrode
- top electrode
- ceramic tube
- electrode
- ceramic
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Abstract
The utility model discloses a kind of ceramic discharge diodes.It includes top electrode, lower electrode and ceramic tube, top electrode and lower electrode pass through a mounting base installation post package in ceramic tube respectively, the metal mesh being mounted in ceramic tube outside top electrode and lower electrode, the middle part of metal mesh has multi-disc high alumina tile made of stacking compacting, each high alumina tile is placed with the formed fold-line-shaped duct of staggered through-hole, top electrode and the opposite end face of lower electrode are coated with oxide coating, seal cavity is formed between mounting base, ceramic tube and upper and lower two electrodes, seal chamber is filled with inert gas medium.After above-mentioned structure, the electric arc of generation can be dispersed by metal mesh, to avoid the damage to tube body, be conducive to the fully dispersed of electric arc, also help the route of elongating arc, to eliminate the electric arc of concentration, effect is fairly obvious, so that the upper end end face of upper/lower electrode capacitance under intrinsic spacing substantially reduces.
Description
Technical field
The utility model relates to a kind of ceramic discharge tube, specifically a kind of ceramic discharge diode.
Background technique
With the development of society, diode technologies are highly developed, current conventional discharge diode is usually all
It is sealed to form by the effective solder of ceramics between top electrode, lower electrode and upper/lower electrode, filled with inert gas in ceramic tube,
Principle is when discharge tube both end voltage reaches certain value, and discharge tube is breakdown, and high current is made to pass through to protect electrical equipment
, often there is afterflow in normal use, the electric arc that electric discharge generates can also cause tube body in actual use
Damage, influences its use, although it has been proposed that gap discharge channel, the still presence of the unavoidable complement of an arc, however it remains
More serious problem, in addition, the excessive defect for influencing use scope of and volume excessive there is also capacitance.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of reasonable in design, arc extinction performance is good to which raising makes
With the ceramic discharge diode in service life.
In order to solve the above-mentioned technical problem, the ceramic discharge diode of the utility model, including top electrode, lower electrode and pottery
Porcelain tube, top electrode and lower electrode pass through a mounting base installation post package in ceramic tube respectively, are mounted with and are located in ceramic tube
Metal mesh outside top electrode and lower electrode, the middle part of metal mesh has multi-disc high alumina tile made of stacking compacting, described in each
High alumina tile is placed with the formed fold-line-shaped duct of staggered through-hole, and top electrode and the opposite end face of lower electrode are coated with
Oxide coating forms seal cavity between mounting base, ceramic tube and upper and lower two electrodes, and seal chamber is filled with indifferent gas
Body medium.
The metal mesh is the variable cross-section tubular construction being gradually increased from centre to two sides internal diameter, the both ends of the metal mesh
Outer diameter is suitable with the internal diameter of ceramic tube.
The upper end end face of the top electrode and lower electrode is respectively arranged with the groove of indent, and the oxide coating is coated in
In groove.
The top electrode and lower electrode pass through solder respectively and are weldingly fixed in two mounting bases, and two mounting bases are equal
It is welded and fixed by solder and ceramic tube.
The top electrode and the shape of lower electrode are that upper end is smaller, the biggish frustum shape in lower end.
After above-mentioned structure, due to the metal mesh being mounted in ceramic tube outside top electrode and lower electrode, especially
It is metal mesh is the variable cross-section cylindrical form being gradually increased from centre to two sides internal diameter, the shape and the shape of upper/lower electrode are mutually fitted
It answers, it is possible thereby to the electric arc of generation is dispersed by metal mesh, to avoid the damage to tube body, the especially shape of metal mesh
Adapting it to property is very high, is conducive to the fully dispersed of electric arc, and the staggered through-hole of each high alumina tile arrangement forms broken line
Shape duct forms the discharge channel of small―gap suture, also helps the route of elongating arc, to eliminate the electric arc of concentration, effect is very
Obviously, furthermore, the oxide coating of coating, thus, it is possible to assign discharge tube with very low breakdown voltage value, so that upper/lower electrode
Upper end end face under intrinsic spacing capacitance substantially reduce.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model ceramic discharge diode.
Specific embodiment
With reference to the accompanying drawings and detailed description, the ceramic discharge diode of the utility model is made further specifically
It is bright.
As shown, the ceramic discharge diode of the utility model, including top electrode 1, lower electrode 2 and ceramic tube 3, it powers on
Pole 1 and lower electrode 2 install post package in ceramic tube 3 by a mounting base respectively, specifically top electrode 1 and lower electrode 2
It is weldingly fixed in two mounting bases by solder respectively, two mounting bases pass through solder and are welded and fixed with ceramic tube, directly
The contact of top electrode and lower electrode with ceramic tube is avoided, in the case where guaranteeing volume there is no changing, reduces capacitor, is made pottery
The metal mesh 4 being mounted with outside top electrode 1 and lower electrode 2 in porcelain tube 3, the middle part of metal mesh have more made of stacking compacting
Piece high alumina tile 5, each high alumina tile 5 are placed with the formed fold-line-shaped duct 6 of staggered through-hole, top electrode 1 and lower electricity
The upper end end face of pole 2 is respectively arranged with the groove 8 of indent, is coated in the groove 8 of top electrode 1 and the opposite end face of lower electrode 2
There is oxide coating 7, forms seal cavity between mounting base, ceramic tube and upper and lower two electrodes, seal chamber is filled with lazy
Property gas medium.
Further, described metal mesh 4 is the variable cross-section tubular construction being gradually increased from centre to two sides internal diameter, is powered on
The shape of pole 1 and lower electrode 2 is that upper end is smaller, the biggish frustum shape in lower end, the planform and top electrode 1 of metal mesh 4
Shape formation with lower electrode 2 dexterously cooperates, and especially intermediate small internal diameter section and top electrode 1 and lower electrode 2 carry out cleverly
It echoes, there is application effect outstanding, the both ends outer diameter of metal mesh 4 is suitable with the internal diameter of ceramic tube 3, it is possible thereby to be located
It is mounted in ceramic tube, it is also very convenient to install.
Claims (5)
1. a kind of ceramic discharge diode, including top electrode (1), lower electrode (2) and ceramic tube (3), it is characterised in that: on described
Electrode (1) and lower electrode (2) install post package in ceramic tube (3) by a mounting base respectively, peace in the ceramic tube (3)
It is equipped with and is located at the metal mesh (4) of top electrode (1) and lower electrode (2) outside, the middle part of the metal mesh has made of stacking compacting
Multi-disc high alumina tile (5), each high alumina tile (5) are placed with the formed fold-line-shaped duct (6) of staggered through-hole, institute
State top electrode (1) and the opposite end face of lower electrode (2) be coated with oxide coating (7), the mounting base, ceramic tube and on
Seal cavity is formed between lower two electrodes, seal chamber is filled with inert gas medium.
2. ceramic discharge diode described in accordance with the claim 1, it is characterised in that: the metal mesh (4) is from centre to two
The both ends outer diameter of the variable cross-section tubular construction that side internal diameter is gradually increased, the metal mesh (4) is suitable with the internal diameter of ceramic tube (3).
3. ceramic discharge diode according to claim 1 or 2, it is characterised in that: the top electrode (1) and lower electrode
(2) upper end end face is respectively arranged with the groove (8) of indent, and the oxide coating is coated in groove (8).
4. ceramic discharge diode described in accordance with the claim 3, it is characterised in that: the top electrode (1) and lower electrode (2) point
It is not weldingly fixed in two mounting bases by solder, two mounting bases pass through solder and are welded and fixed with ceramic tube.
5. ceramic discharge diode according to claim 4, it is characterised in that: the top electrode (1) and lower electrode (2)
Shape is that upper end is smaller, the biggish frustum shape in lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820869471.XU CN208508240U (en) | 2018-06-06 | 2018-06-06 | A kind of ceramic discharge diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820869471.XU CN208508240U (en) | 2018-06-06 | 2018-06-06 | A kind of ceramic discharge diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208508240U true CN208508240U (en) | 2019-02-15 |
Family
ID=65288511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820869471.XU Expired - Fee Related CN208508240U (en) | 2018-06-06 | 2018-06-06 | A kind of ceramic discharge diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208508240U (en) |
-
2018
- 2018-06-06 CN CN201820869471.XU patent/CN208508240U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20210606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |