JPH0744056B2 - Ceramic Heater - Google Patents
Ceramic HeaterInfo
- Publication number
- JPH0744056B2 JPH0744056B2 JP59123952A JP12395284A JPH0744056B2 JP H0744056 B2 JPH0744056 B2 JP H0744056B2 JP 59123952 A JP59123952 A JP 59123952A JP 12395284 A JP12395284 A JP 12395284A JP H0744056 B2 JPH0744056 B2 JP H0744056B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- lead
- resistant
- ceramic substrate
- printed
- 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.)
- Expired - Lifetime
Links
Landscapes
- Resistance Heating (AREA)
Description
【発明の詳細な説明】 〔産業状の利用分野〕 本発明は、例えば、O2センサーの温度制御に用いられて
いるセラミックヒータに関する発明である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a ceramic heater used for temperature control of an O 2 sensor, for example.
従来のセラミックヒータは、耐熱性セラミック基板に、
白金等の貴金属材料で構成した耐熱性抵抗発熱部と同材
料で構成したリード取出部とを設けた構成となってい
る。The conventional ceramic heater is a heat-resistant ceramic substrate
A heat-resistant resistance heating portion made of a precious metal material such as platinum and a lead take-out portion made of the same material are provided.
しかし、この従来構造のものは、発熱不要な取出部まで
が、貴金属材料で構成されているため、コスト的に高価
であるという問題がある。However, this conventional structure has a problem in that it is expensive in terms of cost because the extraction part that does not require heat generation is made of a noble metal material.
また、実開昭52−147947は、耐熱性セラミック基板をセ
ラミック本体に巻き付けたセラミックヒータであり、抵
抗パターンと引出用の電極を別に設けたもので、特開昭
59−68190は、抵抗体と端子を別に設けたものであり、
また実開昭48−19959は、抵抗体と引出し端子部を別に
設けたものである。Japanese Utility Model Laid-Open No. 52-147947 is a ceramic heater in which a heat-resistant ceramic substrate is wound around a ceramic body, and a resistance pattern and an electrode for drawing are separately provided.
59-68190 has a resistor and a terminal separately,
Also, in Japanese Utility Model Application Laid-Open No. 48-19959, a resistor and a lead terminal are separately provided.
しかしながら、これらの従来技術においては、リード線
が取り付け難く、生産性が低い上に、剥がれやすく、リ
ード線取り付け構造の信頼性が乏しいという問題があ
る。However, in these conventional techniques, there is a problem that the lead wire is difficult to attach, the productivity is low, the lead wire is easily peeled off, and the reliability of the lead wire attachment structure is poor.
本発明は、上記問題を鑑み、貴金属の使用を必要最小限
にとどめることで、コストの低減を図るとともに、リー
ド線の取り付けやすい、しかもリード線の剥がれにく
い、即ち、リード線取り付け生産性が高い、そしてリー
ド線取り付け構造の信頼性が高いセラミックヒータを提
供することを課題とするものである。In view of the above problems, the present invention aims to reduce the cost by limiting the use of precious metal to the necessary minimum, and at the same time, it is easy to attach the lead wire, and the lead wire is not easily peeled off, that is, the lead wire attachment productivity is high. Another object of the present invention is to provide a ceramic heater having a highly reliable lead wire mounting structure.
本発明は、上記課題を解決するために、 耐熱性セラミック基板と、 該基板上に印刷された白金等の貴金属材料を印刷して構
成した耐熱性抵抗発熱部と、 該発熱部にニッケル等の卑金属材料を印刷して電気的に
導通するように構成して設けられたリード取出部と、 一対の金属リード線と、 前記耐熱性セラミック基板と同種成分組成であり、しか
も一端に前記金属リード線を具備するための一対の凹部
を備えたパイプ状の芯材とからなり、 さらに、前記耐熱性セラミック基板の前記耐熱性抵抗発
熱部及び前記リード取出部が印刷されている側の面が、
前記芯材の外部側面に前記リード取出部が前記凹部と略
一致するように巻き付けられ、そして前記金属リード線
が、前記耐熱性セラミック基板と前記凹部とによって形
成されたリード取出用穴内に挿入されて、前記リード取
出部と電気的に導通するようにロウ付け結合されたこと
を特徴とするセラミックヒータ を採用するものである。In order to solve the above problems, the present invention provides a heat-resistant ceramic substrate, a heat-resistant resistance heating portion formed by printing a precious metal material such as platinum printed on the substrate, and a nickel or the like in the heating portion. A lead take-out portion formed by printing a base metal material so as to be electrically conductive, a pair of metal lead wires, a composition similar to that of the heat-resistant ceramic substrate, and the metal lead wire at one end. Consisting of a pipe-shaped core material having a pair of recesses for comprising, further, the heat-resistant resistance heating portion of the heat-resistant ceramic substrate and the surface on the side where the lead extraction portion is printed,
The lead take-out portion is wound around the outer side surface of the core material so as to substantially coincide with the concave portion, and the metal lead wire is inserted into a lead take-out hole formed by the heat resistant ceramic substrate and the concave portion. A ceramic heater characterized by being brazed and coupled so as to be electrically connected to the lead extraction portion is adopted.
本発明のセラミックヒータを採用することによって、 即ち、リード取出部をニッケル等の卑金属材料を印刷し
て構成して設けたことから、コスト低減が図れ、また、
一端に前記金属リード線を具備するための一対の凹部を
備えたパイプ状の芯材としたうえに、前記金属リード線
が、前記耐熱性セラミック基板と前記凹部とによって形
成されたリード取出用穴内に挿入されて、前記リード取
出部と電気的に導通するようにロウ付け結合されたこと
から、リード線の取り付けやすい、しかもリード線の剥
がれにくいものとなる。即ち、リード線取り付け生産性
が高い、そしてリード線取り付け構造の信頼性が高いセ
ラミックヒータを提供することができる効果を有する。By adopting the ceramic heater of the present invention, that is, since the lead extraction portion is formed by printing a base metal material such as nickel, the cost can be reduced, and
In addition to a pipe-shaped core material having a pair of recesses for providing the metal lead wires at one end, the metal lead wires are formed in the lead extraction hole formed by the heat-resistant ceramic substrate and the recesses. Since the lead wire is inserted in the lead wire and is brazed and coupled so as to be electrically connected to the lead take-out portion, the lead wire can be easily attached and the lead wire is not easily peeled off. That is, there is an effect that it is possible to provide a ceramic heater having high lead wire attachment productivity and high reliability of the lead wire attachment structure.
第１図のごとく、縦60mm、横15mm、厚み0.2mmのアルミ
ナ96％グリーンシート基板１を用意し、この基板１に第
１図に示すような抵抗発熱部２を白金ペーストによって
厚み40μで印刷し乾燥させた。次いで第２に示すような
リード取出部３をニッケルペーストによって厚み20μで
印刷して乾燥させた。この印刷したシートをリード取出
用穴７となる凹部を設けた同種のアルミナグリーンパイ
プ４にポリビニルアルコール水溶液により巻きつけて14
00℃以下の温度で一体焼成することにより、抵抗発熱部
を内蔵した焼成品５を得た。得られた焼成品に対してリ
ード取出用穴に銅ロウを用いて一対のNiリード６を接続
して大３図の如くセラミックヒータを得た。As shown in FIG. 1, a 96% alumina 96% green sheet substrate 1 having a length of 60 mm, a width of 15 mm and a thickness of 0.2 mm is prepared, and a resistance heating portion 2 as shown in FIG. And dried. Next, the lead take-out portion 3 as shown in FIG. 2 was printed with nickel paste to a thickness of 20 μm and dried. This printed sheet was wrapped around an alumina green pipe 4 of the same kind having a recess to be the lead extraction hole 7 with a polyvinyl alcohol aqueous solution.
By integrally firing at a temperature of 00 ° C. or less, a fired product 5 having a built-in resistance heating portion was obtained. A pair of Ni leads 6 were connected to the obtained fired product by using copper solder in the lead extraction holes to obtain a ceramic heater as shown in FIG.
このようにして得られたセラミックヒータに対して直流
電圧を印加させたときの消費電力と表面温度の関係は第
４図の直接ａのようであり、上記リード取出部も白金ペ
ーストで構成したセラミックヒータは第４の直線ｂであ
る。この対比から、本実施例の異種の接合部での品質上
の問題はないといえる。The relationship between the power consumption and the surface temperature when a DC voltage is applied to the ceramic heater thus obtained is as shown directly in FIG. 4, and the lead extraction portion is also made of platinum paste. The heater is the fourth straight line b. From this comparison, it can be said that there is no quality problem at the joints of different types according to this embodiment.
なお、耐熱性抵抗発熱部は氏白金の他に、ロジルム、白
金−ロジウム等の他の貴金属材料で構成してもよい。ま
た、リード取出もニッケルの他にタングステン等の卑金
属材料で構成してもよい。さらに、耐熱性抵抗発熱部と
リード取出部との電気的導通部が合金組成を形成するよ
うな材料の組合せにしてもよい。The heat-resistant resistance heating portion may be made of rhodium, platinum-rhodium, or another precious metal material other than platinum. Further, the leads may be taken out from a base metal material such as tungsten in addition to nickel. Furthermore, a combination of materials may be used so that the electrically conductive portion between the heat resistant resistance heating portion and the lead lead-out portion forms an alloy composition.
第１図はグリーンシート基板に白金ペーストを印刷した
状態を示す図、第２図は前記印刷シートにさらにニッケ
ルペーストを印刷した状態を示す図、第３図はセラミッ
クヒータの完成品斜視図、第４図はセラミックヒータの
消費電力と表面温度の関係を示すグラフである。 １…耐熱性セラミック基板、２…耐熱性抵抗発熱部、３
…リード取出部４…芯材であるパイプ、６…金属リード
線であるリード、７…リード取出用穴FIG. 1 is a view showing a state where platinum paste is printed on a green sheet substrate, FIG. 2 is a view showing a state where nickel paste is further printed on the printed sheet, and FIG. 3 is a perspective view of a finished ceramic heater, FIG. 4 is a graph showing the relationship between the power consumption of the ceramic heater and the surface temperature. 1 ... Heat-resistant ceramic substrate, 2 ... Heat-resistant resistance heating part, 3
... lead extraction part 4 ... core pipe, 6 ... metal lead wire, 7 ... lead extraction hole
Claims (1)
成した耐熱性抵抗発熱部と、 該発熱部にニッケル等の卑金属材料を印刷して電気的に
導通するように構成して設けられたリード取出部と、 一対の金属リード線と、 前記耐熱性セラミック基板と同種成分組成であり、しか
も一端に前記金属リード線を具備するための一対の凹部
を備えたパイプ状の芯材とからなり、 さらに、前記耐熱性セラミック基板の前記耐熱性抵抗発
熱部及び前記リード取出部が印刷されている側の面が、
前記芯材の外部側面に前記リード取出部が前記凹部と略
一致するように巻き付けられ、そして前記金属リード線
が、前記耐熱性セラミック基板と前記凹部とによって形
成されたリード取出用穴内に挿入されて、前記リード取
出部と電気的に導通するようにロウ付け結合されたこと
を特徴とするセラミックヒータ。1. A heat-resistant ceramic substrate, a heat-resistant resistance heating portion formed by printing a noble metal material such as platinum printed on the substrate, and a base metal material such as nickel printed on the heating portion to produce electricity. Electrically connected to each other, a pair of metal lead wires, a pair of metal lead wires, and a pair of metal lead wires having the same component composition as the heat-resistant ceramic substrate and having the metal lead wires at one end. A pipe-shaped core material having a recess, and a surface of the heat-resistant ceramic substrate on which the heat-resistant resistance heating portion and the lead extraction portion are printed,
The lead take-out portion is wound around the outer side surface of the core material so as to substantially coincide with the concave portion, and the metal lead wire is inserted into a lead take-out hole formed by the heat resistant ceramic substrate and the concave portion. And a ceramic heater which is brazed and connected so as to be electrically connected to the lead extraction portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59123952A JPH0744056B2 (en) | 1984-06-15 | 1984-06-15 | Ceramic Heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59123952A JPH0744056B2 (en) | 1984-06-15 | 1984-06-15 | Ceramic Heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS614193A JPS614193A (en) | 1986-01-10 |
| JPH0744056B2 true JPH0744056B2 (en) | 1995-05-15 |
Family
ID=14873403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59123952A Expired - Lifetime JPH0744056B2 (en) | 1984-06-15 | 1984-06-15 | Ceramic Heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0744056B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8223919B2 (en) | 2003-04-25 | 2012-07-17 | Rapiscan Systems, Inc. | X-ray tomographic inspection systems for the identification of specific target items |
| GB0525593D0 (en) | 2005-12-16 | 2006-01-25 | Cxr Ltd | X-ray tomography inspection systems |
| US8243876B2 (en) | 2003-04-25 | 2012-08-14 | Rapiscan Systems, Inc. | X-ray scanners |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4819959U (en) * | 1971-07-15 | 1973-03-07 | ||
| JPS52147947U (en) * | 1976-05-06 | 1977-11-09 | ||
| JPS5968190A (en) * | 1982-10-08 | 1984-04-18 | 日本碍子株式会社 | Heater |
-
1984
- 1984-06-15 JP JP59123952A patent/JPH0744056B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS614193A (en) | 1986-01-10 |
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