JPH03283335A - Discharge tube - Google Patents
Discharge tubeInfo
- Publication number
- JPH03283335A JPH03283335A JP8417590A JP8417590A JPH03283335A JP H03283335 A JPH03283335 A JP H03283335A JP 8417590 A JP8417590 A JP 8417590A JP 8417590 A JP8417590 A JP 8417590A JP H03283335 A JPH03283335 A JP H03283335A
- Authority
- JP
- Japan
- Prior art keywords
- discharge tube
- sealed container
- sealed
- electrode
- insulating material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 238000003466 welding Methods 0.000 abstract description 7
- 239000000919 ceramic Substances 0.000 abstract description 6
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は経時劣化の防止と、高耐電圧化を可能にした高
電圧用放電管に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high-voltage discharge tube that can prevent deterioration over time and has a high withstand voltage.
従来、この種の放電管においては、第3図に示すように
、一対の対向する電極101,102はセラミック製の
密閉容器103に不活性ガス104とともに封止されて
いた。Conventionally, in this type of discharge tube, a pair of opposing electrodes 101 and 102 have been sealed together with an inert gas 104 in a closed ceramic container 103, as shown in FIG.
しかしながら、上述した従来の放電管では、密閉容器が
多孔質(セラミック)で構成されているため、放電管の
封入ガス圧を大気圧以上に上げることができず、従って
数万V以上の高圧放電管の設計が困難であった。However, in the above-mentioned conventional discharge tube, since the sealed container is made of porous material (ceramic), the pressure of the gas filled in the discharge tube cannot be raised above atmospheric pressure, and therefore high-pressure discharges of tens of thousands of V or more are not possible. The design of the tube was difficult.
本発明の放電管は、互いに対向して配置させた2つの主
電極と、これらの電極を内包するように設けられた密閉
容器とを備えた放電管において、前記主電極の端子部を
除く密閉容器外表面を絶縁材で覆ったことを特徴とする
。The discharge tube of the present invention includes two main electrodes arranged opposite to each other and a sealed container provided to enclose these electrodes, the discharge tube having a sealed container except for a terminal portion of the main electrodes. It is characterized by covering the outer surface of the container with an insulating material.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第1図は本発明の一実施例の縦断面図である。FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.
電極11は金属材よりなる密閉容器】3に、たとえばガ
ラス等の絶縁部13aによって気密的に封着され一体化
している。放電管の組立は、必要な高電圧放電特性が得
られる高圧不活性ガス14雰囲気の中で密閉容器I3に
電極I2を電気溶接して行なわれる。この電気溶接は、
気密性を持たせるために密閉容器I3と電極12との全
面で行なわなければならず、必要に応じて、密閉容器1
3と電極12とのどちらか一方に同心円状の突起を設け
れば気密性が一層確実になる。また、電極11と電極1
2との間の耐電圧を高めるために、両極が現われる部分
(両極が接近している部分)を、エポキシ樹脂等の密着
性の良い絶縁材でコーティング15して両極間の沿面距
離を長くしている。The electrode 11 is hermetically sealed and integrated with an airtight container 3 made of a metal material, for example, by an insulating part 13a made of glass or the like. The discharge tube is assembled by electrically welding the electrode I2 to the closed vessel I3 in an atmosphere of high pressure inert gas 14 that provides the necessary high voltage discharge characteristics. This electric welding
This must be done on the entire surface of the sealed container I3 and the electrode 12 to ensure airtightness, and if necessary, the sealed container 1
If a concentric protrusion is provided on either the electrode 3 or the electrode 12, airtightness will be further ensured. In addition, electrode 11 and electrode 1
In order to increase the withstand voltage between the two poles, the part where the two poles appear (the part where the two poles are close to each other) is coated with an insulating material with good adhesion such as epoxy resin15 to increase the creepage distance between the two poles. ing.
第2図は本発明の他の実施例の縦断面図である。FIG. 2 is a longitudinal sectional view of another embodiment of the invention.
セラミック材よりなる密閉容器23は予め電極21との
間および溶接環23aとの間が密閉接着され、放電管組
立ての際には高圧不活性ガス24雰囲気の中で、溶接環
23aと電極22との間の電気溶接が行なわれる。セラ
ミック材は高絶縁性と機械的耐久性のある優れた材料で
あるので、大気圧以下の雰囲気カスを封入した低電圧放
電管では良く使用されているが、上述したように大気圧
以上の高い圧力の雰囲気ガスを封入した高電圧放電管で
はセラミックは多孔質のために不向きである。 しかし
ながらこの実施例においては、たとえばエポキシ樹脂等
の密着性の良い絶縁材をセラミックの密閉容器23の外
表面にコーティング25しているので高圧にも耐えるこ
とができる。The sealed container 23 made of a ceramic material is hermetically bonded to the electrode 21 and the welding ring 23a in advance, and when assembling the discharge tube, the welding ring 23a and the electrode 22 are bonded together in an atmosphere of a high-pressure inert gas 24. Electric welding is performed between. Ceramic materials are excellent materials with high insulating properties and mechanical durability, so they are often used in low-voltage discharge tubes filled with atmospheric scum at a pressure below atmospheric pressure, but as mentioned above, Ceramic is not suitable for high-voltage discharge tubes filled with pressurized atmospheric gas because of its porous nature. However, in this embodiment, the outer surface of the ceramic sealed container 23 is coated 25 with a highly adhesive insulating material such as epoxy resin, so that it can withstand high pressure.
以上説明したように本発明は、高圧不活性ガスを封入し
ても耐破壊性、耐リーク性のある高電圧放電管を、単純
な構造で実現できるという効果がある。As explained above, the present invention has the effect of realizing a high voltage discharge tube with a simple structure that is resistant to destruction and leakage even when filled with high pressure inert gas.
第1図は本発明の一実施例の縦断面図、第2図は本発明
の他の実施例の縦断面図、第3図は従来の放電管の縦断
面図である。
11.12.21・・・・・・電極、13.23・・・
・・・密閉容器、13a・・・・・・絶縁部、23a・
・・・・・溶接管、14.24・・・・・・不活性ガス
、15.25・・・・・・コーティング。FIG. 1 is a longitudinal sectional view of one embodiment of the present invention, FIG. 2 is a longitudinal sectional view of another embodiment of the invention, and FIG. 3 is a longitudinal sectional view of a conventional discharge tube. 11.12.21... Electrode, 13.23...
... Airtight container, 13a ... Insulation section, 23a.
...Welded pipe, 14.24...Inert gas, 15.25...Coating.
Claims (3)
らの電極を内包するように設けられた密閉容器とを備え
た放電管において、前記主電極の端子部を除く密閉容器
外表面を絶縁材で覆ったことを特徴とする放電管。(1) In a discharge tube equipped with two main electrodes arranged facing each other and a sealed container provided to enclose these electrodes, the outer surface of the sealed container excluding the terminal portion of the main electrodes is A discharge tube characterized by being covered with an insulating material.
容器の外面が絶縁樹脂で覆われていることを特徴とする
請求項(1)記載の放電管。(2) The discharge tube according to claim 1, wherein the sealed container is made of a ceramic material, and the outer surface of the sealed container is covered with an insulating resin.
方の前記電極と前記密閉容器との境界部分が絶縁樹脂で
覆われていることを特徴とする請求項(1)記載の放電
管。(3) The discharge tube according to claim (1), wherein the sealed container is made of a metal material, and a boundary between at least one of the electrodes and the sealed container is covered with an insulating resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8417590A JPH03283335A (en) | 1990-03-30 | 1990-03-30 | Discharge tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8417590A JPH03283335A (en) | 1990-03-30 | 1990-03-30 | Discharge tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03283335A true JPH03283335A (en) | 1991-12-13 |
Family
ID=13823154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8417590A Pending JPH03283335A (en) | 1990-03-30 | 1990-03-30 | Discharge tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03283335A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1691459A2 (en) | 2005-02-15 | 2006-08-16 | Shinko Electric Industries Co., Ltd. | Discharge tube |
-
1990
- 1990-03-30 JP JP8417590A patent/JPH03283335A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1691459A2 (en) | 2005-02-15 | 2006-08-16 | Shinko Electric Industries Co., Ltd. | Discharge tube |
JP2006228466A (en) * | 2005-02-15 | 2006-08-31 | Shinko Electric Ind Co Ltd | Discharge tube |
EP1691459A3 (en) * | 2005-02-15 | 2006-11-02 | Shinko Electric Industries Co., Ltd. | Discharge tube |
US7456576B2 (en) | 2005-02-15 | 2008-11-25 | Shinko Electric Industries Co., Ltd. | Discharge tube |
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