JPH01293504A - Manufacture of glass-sealed thermistor - Google Patents
Manufacture of glass-sealed thermistorInfo
- Publication number
- JPH01293504A JPH01293504A JP12431288A JP12431288A JPH01293504A JP H01293504 A JPH01293504 A JP H01293504A JP 12431288 A JP12431288 A JP 12431288A JP 12431288 A JP12431288 A JP 12431288A JP H01293504 A JPH01293504 A JP H01293504A
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- thermistor
- welding
- glass
- lead wire
- 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 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 8
- 239000000788 chromium alloy Substances 0.000 claims description 8
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 5
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 abstract description 15
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 238000007747 plating Methods 0.000 abstract description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 3
- 239000000956 alloy Substances 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 2
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 2
- 229940112669 cuprous oxide Drugs 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Thermistors And Varistors (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は家型機器、住投機器、自動車機器などの温度上
ンプとして用いられ、特に高耐熱性が要求される分野に
有用なガラス封入形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 relates to a glass-encapsulated thermistor which is used as a temperature pump in house-type equipment, household investment equipment, automobile equipment, etc., and is particularly useful in fields where high heat resistance is required. This relates to a manufacturing method.
従来の技術
従来、この種のガラス封入形サーミスタは第２図に示す
ような構造であった。第２図において、１は対向する両
面に電極２ａ、２ｂを形成したサーミスタ素体であり、
デュメット線３１Ｌ、３ｂを前記両面電極２ａ、２ｂに
同方向から接続した後、前記デュメット線３Ｌ、３ｂの
一部を除く全体を、ガラス４を溶融させることにより気
密封止した製造方法で製作されているものであった。BACKGROUND OF THE INVENTION Conventionally, this type of glass-encapsulated thermistor has had a structure as shown in FIG. In FIG. 2, 1 is a thermistor element with electrodes 2a and 2b formed on opposing surfaces;
After the dumet wires 31L, 3b are connected to the double-sided electrodes 2a, 2b from the same direction, the entire dumet wires 3L, 3b except for a part are hermetically sealed by melting the glass 4. It was something that
発明が解決しようとする課題
このような従来の構造では、以下に示すような問題があ
った。Problems to be Solved by the Invention This conventional structure has the following problems.
（１） リード線に銅の層を有するデュメット線を用
いているため、２５０ ’Ｃを越える高温に長時間放置
すれば、デュメット線の銅の層の酸化がガラスに封止さ
れたリード線の内部まで進行し、最終的にはガラスクラ
ック、素子の劣化・破損につながる。(1) Since the lead wire uses a dumet wire with a copper layer, if it is left at a high temperature exceeding 250'C for a long time, the copper layer of the dumet wire will oxidize and the lead wire sealed in glass will be damaged. It progresses to the inside, eventually leading to glass cracks and element deterioration/damage.
■） デュメット線の表面には亜酸化銅の絶縁層が存在
するため、サーミスタ素体とデュメット線を接続する方
法として、デュメット線の亜酸化銅の層を除去した後に
溶接を行う方法または導電性塗料を用いる方法が用いら
れているが、これらの方法では製造工程が繁雑であり、
安価に製造することが不可能であった。■) Since there is an insulating layer of cuprous oxide on the surface of the dumet wire, there are two ways to connect the thermistor body and the dumet wire: welding after removing the cuprous oxide layer of the dumet wire, or conductive Methods using paint are used, but these methods require complicated manufacturing processes;
It was impossible to manufacture it cheaply.
本発明はこのような問題点を解決するもので、連続で４
００°Ｃ以上の耐熱性を有し、かつサーミスタ素体にリ
ード線を容易に溶接接続することが可能なガラス封入形
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 it is possible to
The object of the present invention is to provide a glass-encapsulated thermistor that has heat resistance of 00°C or more and allows easy welding of lead wires to the thermistor body.
課題を解決するための手段
この問題点を解決するために、本発明のガラス封入形サ
ーミスタの製造法は、対向する両面に電極を形成したサ
ーミスタ素体の前記両電極面それぞれに、ニッケルメッ
キを施した鉄、ニッケル。Means for Solving the Problem In order to solve this problem, the method for manufacturing a glass-encapsulated thermistor of the present invention includes applying nickel plating to each of the two electrode surfaces of the thermistor body, which has electrodes formed on opposing surfaces. Iron and nickel applied.
クロム合金からなるリード線の先端部を溶接によシ接続
した後、前記サーミスタ素体及び前記リード線の溶接部
分を含む先端部にガラスを加熱溶着させることにより前
記サーミスタ素体を気密封止する構成としたものである
。After the tips of the lead wires made of a chromium alloy are connected by welding, the thermistor body is hermetically sealed by heating and welding glass to the thermistor body and the tips of the lead wires, including the welded portions. It is structured as follows.
作用
このような本発明の構成によれば、リード線に銅を含ま
ない鉄、ニッケル、クロム合金を用いることによυ、連
続で４００ ’Ｃ以上の耐熱性を得ることができ、さら
にリード線にニッケルメッキを施すことにより、サーミ
スタ素体に形成された電極とリード線の溶接時にリード
線に鉄の醸化被膜が形成されることがなくなり、安定し
た溶接による接続を得ることができることとなる。Effects According to the structure of the present invention, by using an iron, nickel, and chromium alloy that does not contain copper for the lead wire, it is possible to obtain a continuous heat resistance of 400'C or more, and furthermore, the lead wire can have a continuous heat resistance of 400'C or more. By applying nickel plating to the thermistor body, when welding the electrodes formed on the thermistor body and the lead wires, no iron coating is formed on the lead wires, making it possible to obtain a stable welded connection. .
従って、本発明は連続で４００’Ｃ以上の耐熱性を有し
、かつサーミスタ素体にリード線を容易に溶接接続する
ことが可能なガラス封入形サーミスタを提供することが
できる。Therefore, the present invention can provide a glass-encapsulated thermistor that has a continuous heat resistance of 400'C or more and allows easy welding of lead wires to the thermistor body.
実施例
以下、本説明の一実施例について従来例と同一箇所には
同一番号を付して説明する。EXAMPLE Hereinafter, an example of the present description will be described with the same numbers assigned to the same parts as in the conventional example.
第１図は本発明の製造法によシ得られた一実施例のガラ
ス封入形サーミスタを示す断面図であシ、第１図におい
て、対向する両面に電極２ａ、２ｂを形成したサーミス
タ素体１の前記両電唖２１ＬＩ２ｔ１面それぞれに、ニ
ッケルメッキ６ａ、６ｂを施した鉄、ニッケル、クロム
合金からなるリード線ｓａ、ｓｂの先端部をパラレル溶
接により接続した後、前記サーミスタ素体１及び前記鉄
、ニッケル。FIG. 1 is a cross-sectional view showing an example of a glass-encapsulated thermistor obtained by the manufacturing method of the present invention. In FIG. After connecting the tips of the lead wires sa and sb made of iron, nickel, and chromium alloy with nickel plating 6a and 6b to the surfaces of the both electrodes 21LI2t of 1 by parallel welding, the thermistor body 1 and the iron, nickel.
クロム合金からなるリード線ｓａ、ｓｂの溶接部分を含
む先端部にガラス４を加熱溶着し、前記サーミスタ素体
１を気密封止している。Glass 4 is heat-welded to the tips of lead wires sa and sb made of chromium alloy, including the welded portions, and the thermistor body 1 is hermetically sealed.
以上のように本実施例によれば、リード線に銅を含まな
い鉄、ニッケル、クロム合金を用いることにより、連続
４００′ｃ以上の耐熱性を得ることができ、さらにリー
ド線にニッケルメッキを施すことにより、サーミスタ素
体に形成された電極とリード線の安定した溶接による接
続を得ることができる。As described above, according to this embodiment, by using an iron, nickel, and chromium alloy that does not contain copper for the lead wire, it is possible to obtain a continuous heat resistance of 400'c or more, and furthermore, the lead wire is plated with nickel. By applying this, a stable welded connection between the electrode formed on the thermistor body and the lead wire can be obtained.
尚、本実施例によるガラス封入形サーミスタの４００
’Ｃの高温放置試験では、１０００時間においてもリー
ド線の劣化、ガラスクラック、６％以上の抵抗値変化は
観察されなかった。さらに、パラレル溶接によるサーミ
スタチップの抵抗値変化も２０チ以下であった。In addition, 400 of the glass-encapsulated thermistor according to this example
In the high temperature storage test of 'C, no deterioration of the lead wire, no glass cracks, and no change in resistance value of 6% or more was observed even after 1000 hours. Furthermore, the change in resistance of the thermistor chip due to parallel welding was less than 20 inches.
発明の効果
以上のように本発明によりば、下記のような効果が得ら
れ、その実用価値は大なるものである。Effects of the Invention As described above, according to the present invention, the following effects can be obtained, and the practical value thereof is great.
（１） リード線に銅を含まない鉄、ニッケル、クロ
ム合金を用いることにより、連続で４ｏｏ′Ｃ以上の耐
熱性を得ることができる。(1) By using an iron, nickel, and chromium alloy that does not contain copper for the lead wire, a continuous heat resistance of 4oo'C or more can be obtained.
？） リード線にニッケルメッキを施すことにより・サ
ーミスタ素体に形成された電極とリード線の溶接時にリ
ード線に鉄の酸化被膜が形成されることがなく、安定し
た溶接による接続を得ることができる。? ) By applying nickel plating to the lead wire, an iron oxide film will not be formed on the lead wire when welding the electrode formed on the thermistor body and the lead wire, making it possible to obtain a stable welded connection. .
第１図は本発明の製造法により得られた一実施例のガラ
ス封入形サーミスタを示す断面図、第２図は従来のガラ
ス封入形サーミスタの断面図である。
１・・・・・・サーミスタ素体、２ａ、２ｂ・・・・・
・電極、４・・・・・・ｊｊ５．ｘ、、５ａ、５ｂ・・
甲・鉄、ニッケル、クロム合金線、６ａ、、６ｂ・・・
・・・ニッケルメッキ。FIG. 1 is a cross-sectional view showing an example of a glass-filled thermistor obtained by the manufacturing method of the present invention, and FIG. 2 is a cross-sectional view of a conventional glass-filled thermistor. 1...Thermistor element, 2a, 2b...
・Electrode, 4...jj5. x, 5a, 5b...
Instep: Iron, nickel, chromium alloy wire, 6a, 6b...
···Nickel plating.
Claims (1)
両電極面それぞれに、ニッケルメッキを施した鉄，ニッ
ケル，クロム合金からなるリード線の先端部を溶接によ
り接続した後、前記サーミスタ素体及び前記リード線の
溶接部分を含む先端部にガラスを加熱溶着させることに
より前記サーミスタ素体を気密封止することを特徴とし
たガラス封入形サーミスタの製造法。After connecting the tips of lead wires made of nickel-plated iron, nickel, and chromium alloy to each of the electrode surfaces of the thermistor body, which has electrodes formed on opposing surfaces, by welding, the thermistor body and the A method for manufacturing a glass-filled thermistor, characterized in that the thermistor body is hermetically sealed by heat-welding glass to the tip portion including the welded portion of the lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12431288A JPH01293504A (en) | 1988-05-20 | 1988-05-20 | Manufacture of glass-sealed thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12431288A JPH01293504A (en) | 1988-05-20 | 1988-05-20 | Manufacture of glass-sealed thermistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01293504A true JPH01293504A (en) | 1989-11-27 |
Family
ID=14882214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12431288A Pending JPH01293504A (en) | 1988-05-20 | 1988-05-20 | Manufacture of glass-sealed thermistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01293504A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545657A1 (en) * | 1991-12-03 | 1993-06-09 | General Electric Company | Metal ferrules for hermetically sealing electric lamps |
| US6880969B2 (en) * | 2001-03-23 | 2005-04-19 | Denso Corporation | Temperature sensor and production method thereof |
| US10020116B2 (en) | 2002-04-15 | 2018-07-10 | Avx Corporation | Plated terminations |
-
1988
- 1988-05-20 JP JP12431288A patent/JPH01293504A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545657A1 (en) * | 1991-12-03 | 1993-06-09 | General Electric Company | Metal ferrules for hermetically sealing electric lamps |
| US6880969B2 (en) * | 2001-03-23 | 2005-04-19 | Denso Corporation | Temperature sensor and production method thereof |
| US10020116B2 (en) | 2002-04-15 | 2018-07-10 | Avx Corporation | Plated terminations |
| US10366835B2 (en) | 2002-04-15 | 2019-07-30 | Avx Corporation | Plated terminations |
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