JPS61206213A - Capacitor - Google Patents
CapacitorInfo
- Publication number
- JPS61206213A JPS61206213A JP4716385A JP4716385A JPS61206213A JP S61206213 A JPS61206213 A JP S61206213A JP 4716385 A JP4716385 A JP 4716385A JP 4716385 A JP4716385 A JP 4716385A JP S61206213 A JPS61206213 A JP S61206213A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- film
- present
- pyrogallol
- small circular
- 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
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】
産業上の利用分野
本発明は電気機器用コンデンサとして利用されるコンデ
ンサに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a capacitor used as a capacitor for electrical equipment.
従来の技術
ポリプロピレン、ポリエチレンテレフタレート等の２軸
延伸フイルム上にアルミニウム蒸着電極を設けた乾式タ
イプのコンデンサが知られている。2. Description of the Related Art A dry type capacitor is known in which an aluminum vapor-deposited electrode is provided on a biaxially stretched film of polypropylene, polyethylene terephthalate, or the like.
発明が解決しようとする問題点
この種のコンデンサにおいては、高温（８００）で５０
ｖ／μ以上の電位傾度で使用するとアルミニウム膜に小
円型絶縁皮膜部が発現してくる。このため、高温での連
続耐用試験で容量減少率の増大が顕著に現われてくる。Problems to be Solved by the Invention In this type of capacitor, 50
When used at a potential gradient of v/μ or higher, small circular insulating film portions appear on the aluminum film. For this reason, an increase in capacity reduction rate becomes noticeable during continuous durability tests at high temperatures.
この結果この種のコンデンサの更に高い電位傾度設計に
大きな支障を与えている。As a result, this poses a major problem in designing higher potential gradients for this type of capacitor.
本発明は上記のコンデンサに於ける高温、高電位傾度で
の小円型絶縁部発現の問題点を克服しようとするもので
ある。The present invention seeks to overcome the problem of small circular insulation appearing in capacitors at high temperatures and high potential gradients.
問題点を解決するための手段 本発明者は上記問題点に就いてその発現条件。Means to solve problems The present inventors have investigated the conditions for the manifestation of the above-mentioned problems.
防止対策技術に就いて種々実験研究の結果、ピロガロー
ルを誘電体フィルム中に混合することを発明した。As a result of various experimental studies regarding preventive measures, we invented the method of mixing pyrogallol into a dielectric film.
作 用
上記構成によれば小円型絶縁部の発現が抑制できること
を確認した。尚、ピロガロール誘電体フィルム中への混
入は、ポリプロピレン、ポリエチレンテレフタレート等
の溶融押出しフィルムの場合には樹脂混線時にピロガロ
ールを添加混合すれば良く、ポリカーボネート、アセチ
ル及びブチルセルロース等の様にフィルム化が溶剤混合
によってなされる時には溶液中に混入して加工すれば本
発明にコンデンサに用いる誘電体フィルムが得られる。Effect: It was confirmed that the above configuration can suppress the appearance of small circular insulation parts. In addition, pyrogallol can be mixed into the dielectric film by adding pyrogallol when mixing the resin in the case of melt-extruded films such as polypropylene and polyethylene terephthalate, and when the film is formed using a solvent such as polycarbonate, acetyl, and butylcellulose. When mixed, the dielectric film used in the capacitor of the present invention can be obtained by mixing it into a solution and processing it.
実施例 次表に本発明の実施例及び効果を示す。Example The following table shows examples and effects of the present invention.
なお、厚み６μｍの誘電体フィルム上にアルミニウムを
真空蒸着して電極を形成し、定格３０μＦ。The electrodes were formed by vacuum evaporating aluminum on a dielectric film with a thickness of 6 μm, and had a rating of 30 μF.
２６０ｖのコンデンサを同様にして、巻回作成した。こ
のコンデンサに１．４倍の交流電圧を印加し、雰囲気温
度８０°Ｃで連続耐用試験行い、１０００時間後に容量
減少率を測定した結果、誘電体中にピロガロールを混合
したものはこの値で極めて低く、混合してないものは５
％近傍の値を示すことが判った。又、同時に容量減少率
の大なるもの程、小円型絶縁部が電極膜中に発現してい
ることも併せて確認した。A 260v capacitor was wound in the same manner. We applied 1.4 times the AC voltage to this capacitor, conducted a continuous durability test at an ambient temperature of 80°C, and measured the capacitance reduction rate after 1000 hours. 5 for low and unmixed
It was found that the value was close to %. At the same time, it was also confirmed that the larger the capacitance reduction rate, the more small circular insulating parts appeared in the electrode film.
発明の効果
以上の様に本発明によればアルミニウム蒸着膜の劣化を
抑制する効果が顕著であり、その産業性は犬なるもので
ある。As described above, the present invention has a remarkable effect of suppressing the deterioration of the aluminum vapor deposited film, and its industrial applicability is excellent.
Claims (1)
を混合したことを特徴とするコンデンサ。A capacitor characterized in that pyrogallol is mixed in a dielectric material having aluminum vapor-deposited electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4716385A JPS61206213A (en) | 1985-03-08 | 1985-03-08 | Capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4716385A JPS61206213A (en) | 1985-03-08 | 1985-03-08 | Capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61206213A true JPS61206213A (en) | 1986-09-12 |
Family
ID=12767403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4716385A Pending JPS61206213A (en) | 1985-03-08 | 1985-03-08 | Capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61206213A (en) |
-
1985
- 1985-03-08 JP JP4716385A patent/JPS61206213A/en active Pending
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