JPH0547458Y2 - - Google Patents
Info
- Publication number
- JPH0547458Y2 JPH0547458Y2 JP1989001913U JP191389U JPH0547458Y2 JP H0547458 Y2 JPH0547458 Y2 JP H0547458Y2 JP 1989001913 U JP1989001913 U JP 1989001913U JP 191389 U JP191389 U JP 191389U JP H0547458 Y2 JPH0547458 Y2 JP H0547458Y2
- Authority
- JP
- Japan
- Prior art keywords
- plastic film
- electrode foils
- metallized plastic
- capacitor
- separator
- 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
- 239000011888 foil Substances 0.000 claims description 21
- 239000002985 plastic film Substances 0.000 claims description 19
- 229920006255 plastic film Polymers 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、プラスチツクフイルムコンデンサ
に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a plastic film capacitor.
プラスチツクフイルムコンデンサは、例えばア
ルミニウム箔からなる一対の電極箔と、プラスチ
ツクフイルムからなる２枚のセパレータを交互に
重ねて巻回し、その各々の電極箔からリード端子
を引き出すことにより形成され、そのインピーダ
ンスが小さいことから、主に低周波用コンデンサ
として用いられている。
A plastic film capacitor is formed by winding a pair of electrode foils made of, for example, aluminum foil and two separators made of plastic film alternately, and by drawing out a lead terminal from each electrode foil, and the impedance is determined by Because they are small, they are mainly used as low-frequency capacitors.
〔考案が解決しようとする課題〕
このコンデンサの静電容量は、セパレータの厚
みと、電極箔の有効面積により決定される。すな
わち、セパレータの厚みを薄くすることにより、
高容量化とともに、小型化が図れるのであるが、
セパレータの厚みは定格使用電圧により制約を受
けるため、小型化するにも限度があつた。[Problem to be solved by the invention] The capacitance of this capacitor is determined by the thickness of the separator and the effective area of the electrode foil. In other words, by reducing the thickness of the separator,
It is possible to achieve higher capacity and smaller size.
Since the thickness of the separator is limited by the rated operating voltage, there is a limit to miniaturization.
上記課題を解決するため、この考案において
は、所定の長さを有するアルミニウム箔などの帯
状体を二分割し、その各々にリード端子を取付け
てなる一対の電極箔と、一方の面に金属膜を形成
してなる帯状の金属化プラスチツクフイルムとを
含み、上記一対の電極箔を電気的に分離した状態
でプラスチツクフイルムからなるセパレータを介
して上記金属化プラスチツクフイルムの金属膜と
対向させて巻回するようにしている。
In order to solve the above problems, this invention consists of a pair of electrode foils made by dividing a strip of aluminum foil or the like having a predetermined length into two and attaching a lead terminal to each half, and a metal film on one side. and a band-shaped metallized plastic film formed by forming a metallized plastic film, and the pair of electrode foils are electrically separated and wound so as to face the metal film of the metallized plastic film through a separator made of a plastic film. I try to do that.
この構成によれば、２つのコンデンサを直列に
接続したことになり、静電容量は半分になるとこ
ろであるが、従来に比べてセパレータが１枚少な
く、誘電体の厚みがほぼ1/2と薄くなるため、結
果的には従来とほぼ同等の静電容量を維持しなが
ら、誘電体の厚みがほぼ1/2と薄くなつた分小型
化することができる。
According to this configuration, two capacitors are connected in series, and the capacitance is almost halved, but there is one less separator and the thickness of the dielectric is approximately half as thin as before. As a result, the capacitance can be maintained almost the same as the conventional one, while the dielectric thickness is reduced to about half, making it possible to downsize the device.
以下、この考案の実施例を添付図面を参照しな
がら詳細に説明する。
Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.
第１図はこのコンデンサの巻回状態を示す斜視
図、第２図は同コンデンサの構成要素を展開した
状態の模式的な側面図である。 FIG. 1 is a perspective view showing the winding state of this capacitor, and FIG. 2 is a schematic side view showing the components of the capacitor in an expanded state.
これによると、このコンデンサは、例えばアル
ミニウムの帯状体からなる一対の電極箔１ａ，１
ｂを備え、各電極箔１ａ，１ｂにはそれぞれリー
ド端子２ａ，２ｂが例えば溶接により取付けられ
ている。この場合、各電極箔１ａ，１ｂは所定長
さの一枚のアルミニウム帯状箔を二分割すること
により得られ、それらは等しい長さであることが
好ましい。 According to this, this capacitor includes a pair of electrode foils 1a and 1 made of aluminum strips, for example.
lead terminals 2a, 2b are attached to each electrode foil 1a, 1b by, for example, welding. In this case, each electrode foil 1a, 1b is obtained by dividing a sheet of aluminum strip-shaped foil of a predetermined length into two parts, and it is preferable that they have equal lengths.
また、このコンデンサは、一方の面に金属膜３
ａが形成された金属化プラスチツクフイルム３を
有している。この金属膜３ａは例えば蒸着法にて
形成される。 This capacitor also has a metal film 3 on one side.
It has a metallized plastic film 3 on which a is formed. This metal film 3a is formed by, for example, a vapor deposition method.
各電極箔１ａ，１ｂは図示されているように、
互いに電気的に分離された状態で、プラスチツク
フイルムからなるセパレータ４を介して金属化プ
ラスチツクフイルム３の金属膜３ａと対向的に配
置され、金属化プラスチツクフイルム３が外側に
なるようにして巻回される。 Each electrode foil 1a, 1b is as shown in the figure.
The metallized plastic film 3 is placed facing the metal film 3a of the metallized plastic film 3 through a separator 4 made of plastic film in a state where they are electrically isolated from each other, and is wound so that the metallized plastic film 3 is on the outside. Ru.
なお、この実施例では一方の電極箔１ａを先に
巻き込み、その後所定の間隔をおいて他方の電極
箔１ｂを巻き込むようにしているが、場合によつ
ては、両電極箔１ａ，１ｂを巻回方向に沿つて所
定の間隔をもつて並置した上で、同時に巻き込む
ようにしてよい。 In this embodiment, one electrode foil 1a is rolled up first, and then the other electrode foil 1b is rolled up at a predetermined interval, but in some cases, both electrode foils 1a and 1b may be rolled up. They may be arranged side by side at a predetermined interval along the turning direction and then rolled up at the same time.
いずれにしても、このコンデンサによれば、電
極箔１ａ，１ｂによる２つのコンデンサが直列的
に接続されることになるが、セパレータ４は一枚
でよいため、静電容量は従来と同様でありなが
ら、セパレータを一枚省ける分、小型化すること
ができる。 In any case, according to this capacitor, two capacitors made of electrode foils 1a and 1b are connected in series, but since only one separator 4 is required, the capacitance is the same as before. However, since one separator can be omitted, the size can be reduced.
以上説明したように、この考案によれば、所定
の静電容量を維持しながら、より一層の小型化を
図ることができ、その効果は顕著である。
As explained above, according to this invention, further miniaturization can be achieved while maintaining a predetermined capacitance, and the effect is remarkable.
第１図はこの考案の一実施例に係るコンデンサ
の巻回状態を示す斜視図、第２図は同コンデンサ
の構成要素を展開した状態の模式的な側面図であ
る。
図中、１ａ，１ｂは電極箔、２ａ，２ｂはリー
ド端子、３は金属化プラスチツクフイルム、３ａ
は金属膜、４はセパレータである。
FIG. 1 is a perspective view showing the winding state of a capacitor according to an embodiment of the invention, and FIG. 2 is a schematic side view showing the components of the capacitor in an expanded state. In the figure, 1a and 1b are electrode foils, 2a and 2b are lead terminals, 3 is a metallized plastic film, and 3a
is a metal film, and 4 is a separator.
Claims (1)
状体を二分割し、その各々にリード端子を取付
けてなる一対の電極箔と、一方の面に金属膜を
形成してなる帯状の金属化プラスチツクフイル
ムとを含み、上記一対の電極箔を電気的に分離
した状態でプラスチツクフイルムからなるセパ
レータを介して上記金属化プラスチツクフイル
ムの金属膜と対向させて巻回してなることを特
徴とするプラスチツクフイルムコンデンサ。 (2) 上記各電極箔はほぼ等しい長さにされている
請求高第１項記載のプラスチツクフイルムコン
デンサ。[Claims for Utility Model Registration] (1) A pair of electrode foils made by dividing a strip of aluminum foil or the like having a predetermined length into two parts and attaching lead terminals to each part, and a metal film on one side. and a band-shaped metallized plastic film formed by forming a metallized plastic film, and the pair of electrode foils are electrically separated and wound so as to face the metal film of the metallized plastic film through a separator made of a plastic film. A plastic film capacitor characterized by: (2) The plastic film capacitor according to claim 1, wherein each of the electrode foils has substantially the same length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989001913U JPH0547458Y2 (en) | 1989-01-11 | 1989-01-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989001913U JPH0547458Y2 (en) | 1989-01-11 | 1989-01-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0292917U JPH0292917U (en) | 1990-07-24 |
| JPH0547458Y2 true JPH0547458Y2 (en) | 1993-12-14 |
Family
ID=31202216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989001913U Expired - Lifetime JPH0547458Y2 (en) | 1989-01-11 | 1989-01-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547458Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199320A (en) * | 1984-10-22 | 1986-05-17 | 松下電器産業株式会社 | Coil type resin film capacitor |
| JPS62188306A (en) * | 1986-02-14 | 1987-08-17 | 松下電器産業株式会社 | Composite film capacitor |
-
1989
- 1989-01-11 JP JP1989001913U patent/JPH0547458Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199320A (en) * | 1984-10-22 | 1986-05-17 | 松下電器産業株式会社 | Coil type resin film capacitor |
| JPS62188306A (en) * | 1986-02-14 | 1987-08-17 | 松下電器産業株式会社 | Composite film capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0292917U (en) | 1990-07-24 |
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