JPS63188904A - Manufacture of organic positive characteristics thermistor - Google Patents
Manufacture of organic positive characteristics thermistorInfo
- Publication number
- JPS63188904A JPS63188904A JP2121387A JP2121387A JPS63188904A JP S63188904 A JPS63188904 A JP S63188904A JP 2121387 A JP2121387 A JP 2121387A JP 2121387 A JP2121387 A JP 2121387A JP S63188904 A JPS63188904 A JP S63188904A
- Authority
- JP
- Japan
- Prior art keywords
- temperature coefficient
- positive temperature
- coefficient thermistor
- organic positive
- metal foil
- 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 9
- 239000002184 metal Substances 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 239000011888 foil Substances 0.000 claims description 32
- 239000000843 powder Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（ａｌ産業上の利用分野
この発明は、導電性粉末が分散された樹脂を２つの金属
箔間に介在させてなる有機正特性サーミスタの製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION (Al Industrial Field of Application) This invention relates to a method for manufacturing an organic positive temperature coefficient thermistor in which a resin in which conductive powder is dispersed is interposed between two metal foils.
（ｂ）発明の背景
樹脂中に導電性粉末を分散させて、シート状に成形する
とともに、その表裏に金属箔を積層してプレス加工する
ことによって、この２枚の金属箔を電極とした有機正特
性サーミスタが従来より開発されている。(b) Background of the Invention By dispersing conductive powder in a resin and forming it into a sheet, metal foils are laminated on the front and back of the sheet and pressed, the two metal foils are used as electrodes. Positive temperature coefficient thermistors have been developed in the past.
この種の有機正特性サーミスタは、正特性サーミスタ素
体の加工性、生産性の点から、シート状の正特性サーミ
スタ素体の表裏に金属箔が圧着されてなる正特性サーミ
スタの親シートから所定形状の有機正特性サーミスタが
分断されて、構成される。また、正特性サーミスタ素体
と電極のいずれも柔軟性を持たせることができるため、
比較的大面積のフレキシブルな正特性サーミスタを構成
することができるという特徴も備えている。This type of organic positive temperature coefficient thermistor is made from a parent sheet of positive temperature coefficient thermistor, which is made by pressing metal foil on the front and back sides of a sheet-like positive coefficient thermistor body, from the viewpoint of processability and productivity of the positive coefficient thermistor element. A shaped organic positive temperature coefficient thermistor is divided and constructed. In addition, both the positive temperature coefficient thermistor body and electrodes can be made flexible.
Another feature is that it is possible to construct a flexible positive temperature coefficient thermistor with a relatively large area.
（Ｃ１発明が解決しようとする問題点
このような有機正特性サーミスタ、特に親シートを構成
する際、導電性粉末を分散させてシート状に成形した樹
脂の表裏に金属箔を積層して、プレス加工を行うが、そ
の際、有機正特性サーミスタ素体内または、有機正特性
サーミスタ素体と金属箔との間に気泡が閉じ込められた
まま加圧成形される場合がある。その結果、金属箔と有
機正特性サーミスタ素体との密着強度が局部的に低下し
、電極である金属箔の機械的強度が低下するという問題
があった。また、電極と有機正特性サーミスタ素体との
密着性が低くなるため、経年変化により抵抗値が変化す
るという問題もあった。たとえば、高温試験や高温負荷
試験等の寿命試験を行えば、抵抗値は５０〜２００％も
変化する現象が発生する。このような問題を解消するた
め、従来は多段プレスや減圧プレスといったプレス加工
が考えられているが、気泡を効率的に除去することがで
きず、完全な解決には至っていない。(Problem to be solved by the invention C1) When constructing such an organic positive temperature coefficient thermistor, especially the parent sheet, metal foils are laminated on the front and back sides of a resin sheet with conductive powder dispersed therein and then pressed. During processing, air bubbles may be trapped within the organic positive temperature coefficient thermistor element or between the organic positive temperature coefficient thermistor element and the metal foil.As a result, the metal foil and There was a problem in that the adhesion strength between the organic positive temperature coefficient thermistor body and the organic positive temperature coefficient thermistor body decreased locally, and the mechanical strength of the metal foil that was the electrode decreased. Therefore, there was a problem that the resistance value changed due to aging.For example, if a life test such as a high temperature test or a high temperature load test is performed, the resistance value changes by 50 to 200%. In order to solve these problems, pressing methods such as multi-stage presses and vacuum presses have been considered in the past, but bubbles cannot be removed efficiently and a complete solution has not yet been achieved.
この発明の目的は、金属箔と有機正特性サーミスタ素体
とのプレス加工時において気泡が容易に排出されるよう
にしたｆ機工特性サーミスタの製造方法を提供すること
にある。An object of the present invention is to provide a method for manufacturing an F-mechanical thermistor in which air bubbles are easily discharged during press working of a metal foil and an organic positive temperature coefficient thermistor body.
ｆｄ１問題点を解決するための手段
この発明の存機正特性サーミスタの製造方法は、金属箔
に所定間隔に複数の貫通孔を形成し、樹脂中に導電性粉
末を分散させたシート状の正特性サーミスタ素体の表裏
に、前記金属箔を積層し、プレスすることにより有機正
特性サーミスタの現シートを形成し、その後、この親シ
ートを分断して所定形状の有機正特性サーミスタを製造
することを特徴としている。Means for Solving the FD1 Problem The present invention's method for manufacturing a permanent characteristic thermistor involves forming a plurality of through holes in a metal foil at predetermined intervals, and manufacturing a sheet-like positive thermistor in which conductive powder is dispersed in a resin. Laminating the metal foils on the front and back sides of the characteristic thermistor body and pressing them to form a current sheet of the organic positive temperature coefficient thermistor, and then cutting this parent sheet to produce an organic positive temperature coefficient thermistor of a predetermined shape. It is characterized by
＋Ｑ）作用
この発明の有機正特性サーミスタの製造方法においては
、金属箔に所定間隔に複数の貫通孔が形成されるため、
樹脂中に導電性粉末の分散されたシート状の正特性サー
ミスタ素体が前記２つの金属箔間にプレスされた際、内
部の気泡は金属箔に設けられた複数の貫通孔から外部に
放出され、内部には気泡がほとんど残留しない。+Q) Effect In the method for manufacturing an organic positive temperature coefficient thermistor of the present invention, since a plurality of through holes are formed in the metal foil at predetermined intervals,
When a sheet-like positive temperature coefficient thermistor body in which conductive powder is dispersed in a resin is pressed between the two metal foils, the air bubbles inside are released to the outside from the plurality of through holes provided in the metal foil. , there are almost no air bubbles left inside.
（ｆ）実施例
第１図はこの発明の実施例である有機正特性サーミスタ
の製造方法を表す図であり、プレス加工後分断前の親シ
ートの構造を表す断面図である。(f) Example FIG. 1 is a diagram showing a method for manufacturing an organic positive temperature coefficient thermistor according to an example of the present invention, and is a sectional view showing the structure of a parent sheet after press working and before cutting.
図において３は有機正特性サーミスタ素体を表し、カー
ボンブランクや金属等の粉末４がポリエチレン等の樹脂
中に分散されてシート状に成形されたものである。１，
２はＮｉ、Ｃｕ等の金属箔であり、前記素体３の表裏に
積層されプレス加工によって密着される。この金属箔１
．２は前記プレス加工前にパンチング装置により穴抜き
加工され、所定間隔に複数の貫通孔■］が形成されてい
る。In the figure, numeral 3 represents an organic positive temperature coefficient thermistor body, which is formed by dispersing powder 4 of carbon blank, metal, etc. in a resin such as polyethylene and molding it into a sheet shape. 1,
Reference numeral 2 denotes a metal foil such as Ni or Cu, which is laminated on the front and back sides of the element body 3 and is closely attached by press working. This metal foil 1
．． 2 is punched using a punching device before the press working, and a plurality of through holes (2) are formed at predetermined intervals.
第２図は第１図に示した有機正特性サーミスタの平面図
である。図に示すように貫通孔Ｈは金属箔ｌに対してｄ
の間隔で縦横方向に略等間隔で配列される。ここで間隔
ｄがｌＱｍｍであれば、貫通孔Ｉ］の直径はｌｒｎｍ程
度に設定する。貫通孔のサイズおよび数（分布密度）は
プレス加工すべき面積に対して貫通孔の各面積を合計し
た面積が大きい程、気泡の排出には効果があるが、あま
り大きくすると親シートから切り出した有機正特性サー
ミスタの電極面積が小さくなるため、貫通孔のサイズお
よび数は必要に応じて定める必要がある。例えば、２０
０ｍｍＸ２００ｍｍの金属箔に対して、直径１ｍｍの貫
通孔をｌＱｍｍピッチで分布させた場合、充分に気泡を
排出することができた。FIG. 2 is a plan view of the organic positive temperature coefficient thermistor shown in FIG. 1. As shown in the figure, the through hole H is d relative to the metal foil l.
They are arranged at approximately equal intervals in the vertical and horizontal directions with an interval of . Here, if the interval d is lQmm, the diameter of the through hole I is set to about lrnm. Regarding the size and number of through holes (distribution density), the larger the total area of each through hole is compared to the area to be pressed, the more effective it is in expelling air bubbles. Since the electrode area of an organic positive temperature coefficient thermistor becomes small, the size and number of through holes need to be determined as necessary. For example, 20
When through-holes each having a diameter of 1 mm were distributed at a pitch of 1Q mm in a metal foil measuring 0 mm x 200 mm, air bubbles could be sufficiently discharged.
プレス加工後、同図に示すように貫通孔の配列ピッチｄ
と同一ピッチのカッティングラインＣで正特性サーミス
タをカッティングすることによって、正方形の正特性サ
ーミスタを構成する。なお、この際の電極面積の減少は
０．８％に過ぎない第３図は前述のようにして分断され
た単一の有機正特性サーミスタの外観を表す斜視図であ
る。After pressing, the arrangement pitch d of the through holes is as shown in the figure.
A square PTC thermistor is constructed by cutting the PTC thermistor along cutting lines C with the same pitch as . Note that the reduction in electrode area at this time is only 0.8%. FIG. 3 is a perspective view showing the appearance of a single organic positive temperature coefficient thermistor divided as described above.
図において１．２は金属箔、３は有機正特性サーミスタ
素体を表している。図に示すように金属箔１．２はその
四隅に貫通孔の形跡を残している。In the figure, 1.2 represents a metal foil, and 3 represents an organic positive temperature coefficient thermistor body. As shown in the figure, the metal foil 1.2 leaves traces of through holes at its four corners.
このようにして形成した有機正特性サーミスタは、例え
ば金属箔１，２に対してばね端子を圧接してケース内に
収納して用いる。また、全体を所望の形状に成形して、
金属箔１，２にリード端子を半田付は等によって接続し
て用いる。The organic positive temperature coefficient thermistor thus formed is used by, for example, pressing the spring terminal against the metal foils 1 and 2 and storing the spring terminal in a case. In addition, the whole can be molded into the desired shape,
Lead terminals are connected to the metal foils 1 and 2 by soldering or the like.
上記実施例は、略正方形の有機正特性サーミスタを形成
した例であったが、円板状に形成することも可能である
。第４図はその場合の例について表している。第２図に
示した例と略同様に、金属箔に略等間隔に貫通孔を分布
させた後、この貫通孔を中心として、図中Ｐで示すよう
に円形にパンチングすることにより複数の有機正特性サ
ーミスタを製造する。この場合、直径１ｍｍの貫通孔が
形成されていて、直径ＩＱｍｍの単位でパンチングした
場合、電極面積の減少は１％であり、上記実施例の場合
と同様に電極面積の減少については、実質上全く問題な
く用いることができる。In the above embodiment, the organic positive temperature coefficient thermistor was formed in a substantially square shape, but it is also possible to form it in a disk shape. FIG. 4 shows an example of that case. Similar to the example shown in Fig. 2, after distributing through holes in the metal foil at approximately equal intervals, a plurality of organic Manufactures positive temperature coefficient thermistors. In this case, when a through hole with a diameter of 1 mm is formed and punching is performed in units of diameter IQ mm, the electrode area decreases by 1%, and as in the case of the above example, the electrode area decreases substantially. It can be used without any problem.
尚、上記いずれの実施例でも切り出すべき部品の配列ピ
ッチと、金属箔に形成する貫通孔の配列ピッチとが同一
であったが、この関係は同一でな（とも良い。In each of the above embodiments, the arrangement pitch of the parts to be cut out and the arrangement pitch of the through holes formed in the metal foil were the same, but this relationship may not be the same.
（ｇ１発明の効果
以上のようにこの発明によれば、所定間隔に複数の貫通
孔が形成された金属箔を用いたため、導電性粉末が分散
された有機正特性サーミスタ素体中、もしくは素体と金
属箔との間に気泡が残留することがなく、金属箔の強度
低下や、金属箔と有機正特性サーミスタ素体との密着力
の低下に伴う経年変化を防止することができる。(G1 Effect of the Invention As described above, according to the present invention, since a metal foil having a plurality of through holes formed at predetermined intervals is used, conductive powder is dispersed in the organic positive temperature coefficient thermistor element body or element body. Since no air bubbles remain between the metal foil and the metal foil, it is possible to prevent a decrease in the strength of the metal foil and deterioration over time due to a decrease in the adhesion between the metal foil and the organic positive temperature coefficient thermistor body.
第１図はこの発明の実施例である有機正特性サーミスタ
の製造方法を表す図であり、有機正特性サーミスタの親
シートの構造を表す断面図、第２図は同視シートの平面
図、第３図は第１図に示した親シートを分断して単一の
有機正特性サーミスタとした状態の外観を表す斜視図、
第４図は他の実施例に係る有機正特性サーミスタの親シ
ー１−の平面図である。
１．２−金属箔、３−有機正特性サーミスタ素体４−導
電性粉末、Ｔ−Ｉ−貫通孔。FIG. 1 is a diagram showing a method for manufacturing an organic positive temperature coefficient thermistor according to an embodiment of the present invention, and is a cross-sectional view showing the structure of a parent sheet of the organic positive temperature coefficient thermistor. The figure is a perspective view showing the appearance of a single organic positive temperature coefficient thermistor obtained by dividing the parent sheet shown in FIG.
FIG. 4 is a plan view of a base 1- of an organic positive temperature coefficient thermistor according to another embodiment. 1.2-metal foil, 3-organic positive temperature coefficient thermistor body 4-conductive powder, T-I-through hole.
Claims (1)
中に導電性粉末を分散させたシート状の正特性サーミス
タ素体の表裏に、前記金属箔を積層し、プレスすること
により有機正特性サーミスタの親シートを形成し、その
後、この親シートを分断して所定形状の有機正特性サー
ミスタを製造することを特徴とする、有機正特性サーミ
スタの製造方法。(1) By forming a plurality of through holes in a metal foil at predetermined intervals, and laminating the metal foil on the front and back sides of a sheet-like positive temperature coefficient thermistor body in which conductive powder is dispersed in a resin, and pressing. 1. A method for manufacturing an organic positive temperature coefficient thermistor, comprising forming a parent sheet of the organic positive temperature coefficient thermistor, and then dividing the parent sheet to produce an organic positive temperature coefficient thermistor of a predetermined shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121387A JPS63188904A (en) | 1987-01-30 | 1987-01-30 | Manufacture of organic positive characteristics thermistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121387A JPS63188904A (en) | 1987-01-30 | 1987-01-30 | Manufacture of organic positive characteristics thermistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63188904A true JPS63188904A (en) | 1988-08-04 |
Family
ID=12048719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2121387A Pending JPS63188904A (en) | 1987-01-30 | 1987-01-30 | Manufacture of organic positive characteristics thermistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63188904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0440330A (en) * | 1990-06-05 | 1992-02-10 | Murata Mfg Co Ltd | Temperature sensor |
-
1987
- 1987-01-30 JP JP2121387A patent/JPS63188904A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0440330A (en) * | 1990-06-05 | 1992-02-10 | Murata Mfg Co Ltd | Temperature sensor |
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