CN103681171A - Ceramic gas discharge tube - Google Patents
Ceramic gas discharge tube Download PDFInfo
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- CN103681171A CN103681171A CN201310675266.1A CN201310675266A CN103681171A CN 103681171 A CN103681171 A CN 103681171A CN 201310675266 A CN201310675266 A CN 201310675266A CN 103681171 A CN103681171 A CN 103681171A
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- negative electrode
- discharge tube
- gas discharge
- pin
- anode
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Abstract
The invention relates to the field of discharge tube, in particular to a ceramic gas discharge tube. The ceramic gas discharge tube comprises a ceramic shell, a positive electrode, a negative electrode, a positive electrode pin and a negative electrode pin. The positive electrode and the negative electrode are located inside the ceramic shell, the positive electrode is connected with the positive electrode pin, the negative electrode is connected with the negative electrode pin, the positive electrode is parallel to the negative electrode, the part between the positive electrode and the negative electrode is filled with inert gases, and the surface of the positive electrode and the surface of the negative electrode are provided with protective layers. According to the ceramic gas discharge tube, the surface of the positive electrode and the surface of the negative electrode are provided with the protective layers to protect the electrodes, the electrodes cannot be damaged easily during the discharging, and accordingly the service life of the ceramic gas discharge tube is prolonged.
Description
Technical field
The present invention relates to discharge tube field, especially a kind of ceramic gas discharge tube.
Background technology
In electronic equipment, often there is moment peak voltage and surge voltage, both are different, and the former is short the duration, but voltage peak scope is large, from mV level to kV level; The latter's duration is long, can reach ms and even s level, but its amplitude can be the several times of normal value, can be referred to as overvoltage condition, and they all can make troubles to circuit, even burn out circuit, damages instrument.So; in present many circuit, be all provided with discharge tube protective circuit, wherein, ceramic gas discharge tube is the discharge tube of comparatively commonly using; but the electrode in ceramic gas discharge tube is often easily because high temperature discharge causes damage, thereby affect useful life of ceramic gas discharge tube.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of ceramic gas discharge tube having compared with the long life.
Ceramic gas discharge tube disclosed by the invention; comprise ceramic shell, anode, negative electrode, anode pin and negative electrode pin; described anode and negative electrode are positioned at ceramic shell; described anode is connected with anode pin; described negative electrode is connected with negative electrode pin; described anode is parallel with negative electrode, between described anode and negative electrode, is filled with inert gas, and described anode and cathode surface are provided with protective layer.
Preferably, described protective layer material therefor is graphite.
Preferably, described anode pin and negative electrode pin are all enclosed with tin layer.
The invention has the beneficial effects as follows: in this ceramic gas discharge tube, anode and cathode surface are provided with protective layer can guard electrode, make it not easily damaged in electric discharge, thereby extend the useful life of ceramic gas discharge tube.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
In figure, mark 1 is ceramic shell, and 2 is anode, and 3 is negative electrode, and 4 is anode pin, and 5 is negative electrode pin, and 6 is tin layer, and 7 is protective layer.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1; ceramic gas discharge tube of the present invention comprises ceramic shell 1, anode 2, negative electrode 3, anode pin 4 and negative electrode pin 5; described anode 2 and negative electrode 3 are positioned at ceramic shell; described anode 2 is connected with anode pin 4; described negative electrode 3 is connected with negative electrode pin 5; described anode 2 is parallel with negative electrode 3, between described anode 2 and negative electrode 3, is filled with inert gas, and described anode 2 is provided with protective layer 7 with negative electrode 3 surfaces.During work; this ceramic gas discharge tube is in parallel with protected circuit; when circuit voltage is normal; ceramic gas discharge tube opens circuit, and circuit can normally be worked, when circuit voltage increases the scope can bear over circuit suddenly; inert gas between ceramic gas discharge tube Anodic 2 and negative electrode 3 will ionize; the ion that ionized inert gas goes out and electronics make ceramic gas discharge tube become conducting, and approximate short circuit phenomenon occurs, thus protective circuit.Wherein, anode 2 is parallel with negative electrode 3 can make the electric field force between the two poles of the earth even, the movement of ion while being conducive to discharge, and the protective layer 7 on anode 2 and negative electrode 3 surfaces is can guard electrode not easily damaged when electric discharge, thereby extends the useful life of ceramic gas discharge tube.
In such scheme, the selection of protective layer 7 is a lot, and can make is some metal oxide or alloys high temperature resistant, corrosion-resistant and conduction, and at this, as optimal way, described protective layer 7 material therefors are graphite.Graphite is cheap, easily obtains, and high temperature resistant, corrosion-resistant and conduction, is desirable protective layer material simultaneously.
When connecting circuit, circuit needs welding sometimes, so as optimal way, described anode pin 4 and negative electrode pin 5 are all enclosed with tin layer 6.When connecting circuit, be just easy to like this weld.
Claims (3)
1. ceramic gas discharge tube; comprise ceramic shell (1), anode (2), negative electrode (3), anode pin (4) and negative electrode pin (5); described anode (2) and negative electrode (3) are positioned at ceramic shell; described anode (2) is connected with anode pin (4); described negative electrode (3) is connected with negative electrode pin (5); it is characterized in that: described anode (2) is parallel with negative electrode (3); between described anode (2) and negative electrode (3), be filled with inert gas, described anode (2) is provided with protective layer (7) with negative electrode (3) surface.
2. ceramic gas discharge tube as claimed in claim 1, is characterized in that: described protective layer (7) material therefor is graphite.
3. ceramic gas discharge tube as claimed in claim 1, is characterized in that: described anode pin (4) and negative electrode pin (5) are all enclosed with tin layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675266.1A CN103681171A (en) | 2013-12-07 | 2013-12-07 | Ceramic gas discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675266.1A CN103681171A (en) | 2013-12-07 | 2013-12-07 | Ceramic gas discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103681171A true CN103681171A (en) | 2014-03-26 |
Family
ID=50318398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310675266.1A Pending CN103681171A (en) | 2013-12-07 | 2013-12-07 | Ceramic gas discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103681171A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335956A (en) * | 2017-12-28 | 2018-07-27 | 广州邦讯信息***有限公司 | Novel gas discharge tube |
| WO2022222211A1 (en) * | 2021-04-21 | 2022-10-27 | 深圳市瑞隆源电子有限公司 | Gas discharge tube and manufacturing method therefor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050073231A1 (en) * | 2003-10-06 | 2005-04-07 | Kazuhiko Machida | Discharge tube |
| CN2777728Y (en) * | 2005-02-01 | 2006-05-03 | 深圳天泰电器元件有限公司 | Safety anti-explosion capacitor |
| US20060209485A1 (en) * | 2003-04-10 | 2006-09-21 | Okaya Electric Industries Co., Ltd. | Discharge tube and surge absorbing device |
| CN101090197A (en) * | 2007-04-29 | 2007-12-19 | 四川中光防雷科技有限责任公司 | High efficient laminated graphic discharge gap device |
| CN101330196A (en) * | 2007-05-22 | 2008-12-24 | 延森设备股份公司 | Gas discharge tube |
| CN102324369A (en) * | 2011-09-14 | 2012-01-18 | 成都凯迈科技有限公司 | Double-row direct insertion type ultraviolet photoelectric tube |
| CN102637563A (en) * | 2012-04-19 | 2012-08-15 | 镇江市电子管厂 | Subminiature SMT (surface mount device) type gas discharge tube |
| CN103338584A (en) * | 2013-06-20 | 2013-10-02 | 张家港市华为电子有限公司 | Crossover line component for PCB |
| CN103367079A (en) * | 2013-07-24 | 2013-10-23 | 爱普科斯电子(孝感)有限公司 | Gas discharge tube with high surge shock resistance |
-
2013
- 2013-12-07 CN CN201310675266.1A patent/CN103681171A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060209485A1 (en) * | 2003-04-10 | 2006-09-21 | Okaya Electric Industries Co., Ltd. | Discharge tube and surge absorbing device |
| US20050073231A1 (en) * | 2003-10-06 | 2005-04-07 | Kazuhiko Machida | Discharge tube |
| CN2777728Y (en) * | 2005-02-01 | 2006-05-03 | 深圳天泰电器元件有限公司 | Safety anti-explosion capacitor |
| CN101090197A (en) * | 2007-04-29 | 2007-12-19 | 四川中光防雷科技有限责任公司 | High efficient laminated graphic discharge gap device |
| CN101330196A (en) * | 2007-05-22 | 2008-12-24 | 延森设备股份公司 | Gas discharge tube |
| CN102324369A (en) * | 2011-09-14 | 2012-01-18 | 成都凯迈科技有限公司 | Double-row direct insertion type ultraviolet photoelectric tube |
| CN102637563A (en) * | 2012-04-19 | 2012-08-15 | 镇江市电子管厂 | Subminiature SMT (surface mount device) type gas discharge tube |
| CN103338584A (en) * | 2013-06-20 | 2013-10-02 | 张家港市华为电子有限公司 | Crossover line component for PCB |
| CN103367079A (en) * | 2013-07-24 | 2013-10-23 | 爱普科斯电子(孝感)有限公司 | Gas discharge tube with high surge shock resistance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335956A (en) * | 2017-12-28 | 2018-07-27 | 广州邦讯信息***有限公司 | Novel gas discharge tube |
| CN108335956B (en) * | 2017-12-28 | 2019-09-10 | 广州邦讯信息***有限公司 | Gas-discharge tube |
| WO2022222211A1 (en) * | 2021-04-21 | 2022-10-27 | 深圳市瑞隆源电子有限公司 | Gas discharge tube and manufacturing method therefor |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |
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| RJ01 | Rejection of invention patent application after publication |