JPH01235307A - Manufacture of glass-sealed thermistor - Google Patents
Manufacture of glass-sealed thermistorInfo
- Publication number
- JPH01235307A JPH01235307A JP6238988A JP6238988A JPH01235307A JP H01235307 A JPH01235307 A JP H01235307A JP 6238988 A JP6238988 A JP 6238988A JP 6238988 A JP6238988 A JP 6238988A JP H01235307 A JPH01235307 A JP H01235307A
- Authority
- JP
- Japan
- Prior art keywords
- wires
- wire
- faces
- glass material
- nickel
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims abstract description 14
- 239000005388 borosilicate glass Substances 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 5
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011261 inert gas Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は家電機器、住設機器、自動車機器などの温度セ
ンサとして用いられ、特にＳＯＯ″Ｃまでの高温領域に
おいても連続使用可能な信頼性の高いガラス封入サーミ
スタの製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used as a temperature sensor for home appliances, housing equipment, automobile equipment, etc., and is highly reliable and can be used continuously even in high temperature ranges up to SOO''C. The present invention relates to a method for manufacturing a glass-encapsulated thermistor.
従来の技術
従来、この種のガラス封入サーミスタは、第２図、第３
図に示すような構成であった。2. Prior Art Conventionally, this type of glass-encapsulated thermistor is shown in FIGS.
The configuration was as shown in the figure.
第２図において、１は対向する両面に電極を形成した平
板形または円板形などのサーミスタ素体であり、ジュメ
ット線２を前記サーミスタ素体１の両面の電極面に固定
し、前記ジュメット線２の一部を除く、全体を前記ジュ
メット線２の熱膨張係数に近似した熱膨張係数を有する
ガラス材３にて密閉封止した構成であった。In FIG. 2, reference numeral 1 denotes a thermistor element body in the form of a flat plate or a disk having electrodes formed on opposing surfaces, and a dumet wire 2 is fixed to the electrode surfaces of both surfaces of the thermistor element body 1, and the dumet wire The entire structure, except for a part of the Dumet wire 2, was hermetically sealed with a glass material 3 having a thermal expansion coefficient similar to that of the Dumet wire 2.
第３図において、１は対向する両面に電極を形成した平
板形または円板形などのサーミスタ素体であり、４２％
Ｆｅ−Ｎｉ線４を前記サーミスタ素体１の両面の電極面
に固定し、前記４２％Ｆｅ−Ｎｉ線４の一部を除く全体
を硼硅酸ガラス材６にて大気中または不活性ガス中で密
閉封止した構成であった。In Fig. 3, numeral 1 is a thermistor body in the form of a flat plate or disc with electrodes formed on opposing surfaces;
The Fe-Ni wire 4 is fixed to the electrode surfaces on both sides of the thermistor body 1, and the entire 42% Fe-Ni wire 4 except for a part is covered with a borosilicate glass material 6 in the atmosphere or inert gas. The structure was hermetically sealed.
発明が解決しようとする課題
このような従来の構成では、以下に示すような問題点が
あった。Problems to be Solved by the Invention This conventional configuration has the following problems.
（１） ジュメット線およびジュメット線の熱膨張係
数に近似した熱膨張係数を有するガラス材の連続使用可
能な限界温度は４００’Ｃまでであり、これ以上の高い
温度ではガラス材の溶融およびジュメット線の劣化によ
り、機能を果たさなくなる。(1) The limit temperature at which Dumet wire and glass materials with a thermal expansion coefficient similar to that of Dumet wire can be used continuously is up to 400'C; at higher temperatures, the glass material will melt and the Dumet wire will melt. Due to deterioration, it no longer functions.
（２）４２％Ｆｅ−Ｎｉ線を硼硅酸ガラス材にて大気中
で封止した場合、４２％Ｆ ａ −Ｎ ｉ線表面に酸化
鉄の層を形成し、サーミスタ素体の抵抗値が大きく変化
してしまう。また、４２％Ｆｅ−Ｎｉ線と硼硅酸ガラス
材との封止状態も良好とは言えない。(2) When a 42% Fe-Ni wire is sealed in the atmosphere with a borosilicate glass material, a layer of iron oxide is formed on the surface of the 42% Fe-Ni wire, and the resistance value of the thermistor element increases. It will change drastically. Furthermore, the sealing state between the 42% Fe--Ni wire and the borosilicate glass material cannot be said to be good.
（３）４２％Ｆｅ−Ｎｉ線を硼硅酸ガラス材にて不活性
ガス中で封止した場合、サーミスタ素体の結晶構造が大
きく変化し、サーミスタ素体の抵抗値が大きく変化して
しまう。(3) When a 42% Fe-Ni wire is sealed in an inert gas with a borosilicate glass material, the crystal structure of the thermistor element changes significantly, and the resistance value of the thermistor element changes significantly. .
本発明はこのような問題点を解決するもので、安定した
特性を有する信頼性の高いガラス封入サーミスタの提供
を目的とするものである。The present invention solves these problems and aims to provide a highly reliable glass-encapsulated thermistor with stable characteristics.
課題を解決するための手段
そこで、前記問題点を解決するために本発明は、サーミ
スタ素体の両面の電極面にニッケルメッキを施した４２
％Ｆｅ−Ｎｉ線をパラレルギャップ溶接法により固定し
、硼硅酸ガラス材にて大気中で密閉封止した構成である
。Means for Solving the Problems Therefore, in order to solve the above-mentioned problems, the present invention has developed a 42mm electrode in which electrode surfaces on both sides of the thermistor body are plated with nickel.
%Fe--Ni wires were fixed by parallel gap welding and hermetically sealed in the atmosphere with borosilicate glass material.
作用
この構成によれば、４２％Ｆｅ−Ｎｉ線にニッケルメッ
キを施すことにより大気中でのガラス封止が可能であり
、かつガラス封止前後の抵抗値変化率は小さい。従って
、本発明はニッケルメッキを施した４２％Ｆｅ−Ｎｉ線
を使用して大気中封入を行うことにより、安定した特性
を有する高信頼性のガラス封入サーミスタを供給するこ
とができる。Function: According to this configuration, by applying nickel plating to the 42% Fe--Ni wire, glass sealing in the atmosphere is possible, and the rate of change in resistance value before and after glass sealing is small. Therefore, the present invention can provide a highly reliable glass-encapsulated thermistor with stable characteristics by using a nickel-plated 42% Fe--Ni wire and encapsulating it in the atmosphere.
実施例
以下、本発明の一実施例について第１図を参照１図にお
いて対向する両面に白金電極を形成した平板形または円
板形などのサーミスタ素体ｅの両面の電極面にニッケル
メッキを施した４２％Ｆｅ−Ｎｉ線７をパラレルギャッ
プ溶接法によって固定し、前記４２％Ｆｅ−Ｎｉ線７の
一部を除く全体を硼硅酸ガラス材８で大気中で密閉封止
した。これにより第１図に示すようなガラス封入サーミ
スタを作製した。また、第１図において、９はパラレル
ギャップ溶接部である。EXAMPLE Below, see FIG. 1 for an example of the present invention. In FIG. 1, nickel plating is applied to both electrode surfaces of a thermistor body e, such as a flat or disk-shaped thermistor element body e, with platinum electrodes formed on opposing surfaces. The 42% Fe--Ni wire 7 was fixed by parallel gap welding, and the entire 42% Fe--Ni wire 7 except for a part was hermetically sealed in the atmosphere with a borosilicate glass material 8. As a result, a glass-encapsulated thermistor as shown in FIG. 1 was manufactured. Further, in FIG. 1, 9 is a parallel gap weld.
以上のように本実施例によれば、ニッケルメッキを施し
た４２％Ｆｅ−Ｎｉ線を用いることにより、大気中での
ガラス封止において、リード線表面に酸化鉄の層を形成
することはなく、硼硅酸ガラス材との封止状態は良好で
あった。また、ガラス封止前後の抵抗値変化率は不活性
雰囲気中封止に比べ、低く抑えることが可能となった。As described above, according to this example, by using the nickel-plated 42% Fe-Ni wire, an iron oxide layer is not formed on the surface of the lead wire during glass sealing in the atmosphere. The sealing state with the borosilicate glass material was good. Additionally, the rate of change in resistance before and after glass sealing can be kept lower than when sealing in an inert atmosphere.
発明の効果
以上のように本発明によれば、以下のような効果が得ら
れる。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.
（１）硼硅酸ガラスおよび４２％Ｆｅ−Ｎｉ線を用いる
ことによシ、５００’Ｃ連続使用が可能である。(1) Continuous use at 500'C is possible by using borosilicate glass and 42% Fe--Ni wire.
（２）ニッケルメッキを施した４２％Ｆｅ−Ｎｉ線を用
いることによシ、大気中でのガラス封止において、リー
ド線（４２％Ｆｅ−Ｎｉ線）表面に酸化鉄の層を形成す
ることがなく、安定した特性であり、かつ良好な封止状
態のガラス封入サーミスタを製造することが可能となる
。(2) By using a nickel-plated 42% Fe-Ni wire, a layer of iron oxide can be formed on the surface of the lead wire (42% Fe-Ni wire) during glass sealing in the atmosphere. It becomes possible to manufacture a glass-encapsulated thermistor with stable characteristics and a good sealing condition.
図および第３図はそれぞれ従来のガラス封入サーミスタ
を示す断面図である。FIG. 3 is a cross-sectional view of a conventional glass-encapsulated thermistor.
６・・・・・・サーミスタ素体、７・・・・・・４２％
Ｆｅ−Ｎｉ線、８・・・・・・硼硅酸ガラス材、９・・
・・・パラレルギャップ溶接部。6...Thermistor element, 7...42%
Fe-Ni wire, 8...Borosilicate glass material, 9...
...Parallel gap weld.
Claims (1)
面の電極面にニッケルメッキを施した２本の４２％Ｆｅ
−Ｎｉ線をパラレルギャップ溶接法を用いて固定し、そ
の後、前記４２％Ｆｅ−Ｎｉ線の一部を除く全体を硼硅
酸ガラス材にて大気中で密閉封止することを特徴とする
ガラス封入サーミスタの製造法。Two 42% Fe thermistor bodies with platinum electrodes formed on opposing sides, with nickel plating on both electrode surfaces.
- A glass characterized in that the Ni wire is fixed using a parallel gap welding method, and then the entire 42% Fe-Ni wire except for a part is hermetically sealed in the atmosphere with a borosilicate glass material. Method of manufacturing encapsulated thermistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6238988A JPH01235307A (en) | 1988-03-16 | 1988-03-16 | Manufacture of glass-sealed thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6238988A JPH01235307A (en) | 1988-03-16 | 1988-03-16 | Manufacture of glass-sealed thermistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01235307A true JPH01235307A (en) | 1989-09-20 |
Family
ID=13198724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6238988A Pending JPH01235307A (en) | 1988-03-16 | 1988-03-16 | Manufacture of glass-sealed thermistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01235307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03136203A (en) * | 1989-10-20 | 1991-06-11 | Matsushita Electric Ind Co Ltd | Glass sealed type thermistor |
-
1988
- 1988-03-16 JP JP6238988A patent/JPH01235307A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03136203A (en) * | 1989-10-20 | 1991-06-11 | Matsushita Electric Ind Co Ltd | Glass sealed type thermistor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100854413B1 (en) | Thermistor and method of manufacture | |
| US3815074A (en) | Thermistor for temperature measurement | |
| JPS6143402A (en) | Method of producing thermistor | |
| US3820239A (en) | Method of manufacturing thermistor | |
| JPH01235307A (en) | Manufacture of glass-sealed thermistor | |
| JPH1183641A (en) | Glass sealed thermistor | |
| JPH01235304A (en) | Manufacture of glass-sealed thermistor | |
| KR900005267B1 (en) | Process for the production of ptc thermistors | |
| JPH02263402A (en) | Thermistor sealed up in glass | |
| JPH0541526Y2 (en) | ||
| KR100369895B1 (en) | Thermistor for Middle-High Temperature and Manufacturing Method thereof | |
| JPS6199302A (en) | High temperature glass sealed thermistor | |
| JPS63246802A (en) | Thermistor | |
| JPS63316404A (en) | Manufacture of glass-sealed thermistor | |
| JPH01293504A (en) | Manufacture of glass-sealed thermistor | |
| JPH0115125Y2 (en) | ||
| JPH08213207A (en) | Glass-sealed thermistor | |
| JPH02164004A (en) | Manufacture of glass-sealed thermistor | |
| JPH05258909A (en) | Glass-sealed thermistor | |
| JPS6146002A (en) | Glass sealed thermistor | |
| JPS61105804A (en) | Thermistor element and manufacuture thereof | |
| JPH08167502A (en) | Glass encapsulated thermistor | |
| JPS63102209A (en) | High temperature glass sealed thermistor | |
| JPH01268101A (en) | Manufacture of glass-sealed thermistor | |
| JPS6146001A (en) | Method of producing glass sealed thermistor |