JPH0738362B2 - Method of manufacturing film capacitor - Google Patents
Method of manufacturing film capacitorInfo
- Publication number
- JPH0738362B2 JPH0738362B2 JP1216703A JP21670389A JPH0738362B2 JP H0738362 B2 JPH0738362 B2 JP H0738362B2 JP 1216703 A JP1216703 A JP 1216703A JP 21670389 A JP21670389 A JP 21670389A JP H0738362 B2 JPH0738362 B2 JP H0738362B2
- Authority
- JP
- Japan
- Prior art keywords
- press
- laminated
- pressing
- metallized film
- film capacitor
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明はフィルムコンデンサ、特に積層金属化フィル
ムコンデンサの製造方法に関するものである。The present invention relates to a method for manufacturing a film capacitor, particularly a laminated metallized film capacitor.
近年、電子機器、電気機器の多機能化、小型化の取り組
みが盛んであり、これに用いられるフィルムコンデンサ
もますます小型化を要求されている。このため、容量に
寄与する部分の面積を拡大するとともに、この容量に寄
与する部分が積層金属化フィルム間で互いに位置ずれす
ることなく確実に接着する必要がある。そのなかで積層
金属化フィルム間の接着状態は、プレス工程に大きく左
右される。In recent years, efforts have been made to make electronic devices and electric devices multifunctional and miniaturized, and film capacitors used therein are also required to be miniaturized. Therefore, it is necessary to increase the area of the portion that contributes to the capacitance and to reliably bond the portions that contribute to the capacitance without misalignment between the laminated metallized films. Among them, the adhesion state between the laminated metallized films largely depends on the pressing process.
以下、第２図（ａ），（ｂ），（ｃ）および第３図を参
照しながら、従来の積層金属化フィルムコンデンサの製
造方法の一例について説明する。An example of a conventional method for manufacturing a laminated metalized film capacitor will be described below with reference to FIGS. 2 (a), (b), (c) and FIG.
第２図（ａ）は、片面金属化フィルム８を平板巻取ボビ
ン２′に積層巻取した金属化フィルム３′を、層間接着
するプレス工程を示し、また第２図（ｂ），（ｃ）は、
プレス板１の温度変化（プレス温度カーブ11）および圧
力変化（プレス圧力カーブ12）を示すグラフである。FIG. 2 (a) shows a pressing step for interlayer bonding a metallized film 3'formed by laminating a single-sided metallized film 8 on a flat plate winding bobbin 2 ', and FIGS. 2 (b) and 2 (c). ) Is
5 is a graph showing a temperature change (press temperature curve 11) and a pressure change (press pressure curve 12) of the press plate 1.
第３図は従来のプレス工程によって製造された積層金属
化フィルムコンデンサ13の構造を示すものである。FIG. 3 shows the structure of a laminated metallized film capacitor 13 manufactured by a conventional pressing process.
従来のプレス工程においては、第２図（ａ）に示すよう
に、積層金属化フィルム３′を、予め高温にセットされ
たプレス板１の間に挟み込み、そして急激に高い圧力で
プレス板１をプレスした後、そのままのプレス温度（プ
レス温度カーブ11）、およびプレス圧力（プレス圧力カ
ーブ12）で一定時間ヒートプレスしつづけていた。In the conventional pressing process, as shown in FIG. 2 (a), the laminated metallized film 3'is sandwiched between the press plates 1 set at a high temperature in advance, and the press plate 1 is abruptly pressed with a high pressure. After pressing, heat pressing was continued for a certain period of time at the same press temperature (press temperature curve 11) and press pressure (press pressure curve 12).
しかしこの従来のプレス工程では、積層金属化フィルム
３′は、急激な温度上昇と急激な圧力上昇によってヒー
トプレスされるため、第２図（ａ），第３図に示すよう
に層間にあるエアが抜けきれずエア溜まり９を発生させ
たり、また逆に急激な層間エアの膨張と層間からのエア
の排出により、片面金属化フィルム８が排出エアに引っ
張りだされ、積層金属化フィルム間の積層ズレ10を発生
させたりしていた。そのため積層金属化フィルム３′の
層間接着状態が不均一となり、その結果、積層金属化フ
ィルムコンデンサ13の容量精度が低下し経時的にも容量
変化が大きくなるだけでなく、形状においても積層厚み
が不均一となっていた。However, in this conventional pressing process, the laminated metallized film 3'is heat-pressed by a rapid temperature rise and a rapid pressure rise, so that the air between the layers can be removed as shown in FIGS. 2 (a) and 3. Cannot be completely removed to generate an air pocket 9, or conversely, due to rapid expansion of interlayer air and discharge of air from the layers, the single-sided metallized film 8 is pulled out to the exhausted air, and the laminated metallized films are laminated. I was causing a gap 10. Therefore, the interlayer adhesion state of the laminated metallized film 3 ′ becomes non-uniform, and as a result, not only the capacitance accuracy of the laminated metallized film capacitor 13 deteriorates and the capacitance changes over time, but also the laminated thickness in terms of shape. It was uneven.
この発明は上記問題点に鑑み、層間にエア溜まりを発生
させることなく、また層間のズレを防止し、容量特性、
形状ともに安定したフィルムコンデンサの製造方法を提
供することを目的とする。In view of the above problems, the present invention prevents air gaps between layers, prevents gaps between layers, and has a capacitance characteristic,
An object of the present invention is to provide a method for manufacturing a film capacitor having a stable shape.
この発明のフィルムコンデンサの製造方法は、平板巻取
ボビンに巻取られた積層金属化フィルムのプレス工程に
おいて、積層金属化フィルムを全面に渡って挾み込むプ
レス板のプレス温度およびプレス圧力の少なくとも一方
を徐々に上昇させ、この積層金属化フィルム間を層間接
着する方法である。The manufacturing method of the film capacitor of the present invention is such that at least the pressing temperature and the pressing pressure of the press plate that sandwiches the laminated metallized film over the entire surface in the pressing step of the laminated metallized film wound on the flat plate winding bobbin. This is a method in which one of the layers is gradually raised and interlayers are adhered between the laminated metallized films.
請求項（２）のフィルムコンデンサの製造方法は、予め
平板巻取ボビンに溝もしくは貫通穴、かつ積層金属化フ
ィルムの積層方向に貫通穴を設け、前記プレス工程を行
い、積層金属化フィルム間を層間接着する方法である。The method of manufacturing a film capacitor according to claim (2), wherein a groove or a through hole is provided in the flat plate winding bobbin in advance, and a through hole is provided in the laminating direction of the laminated metallized film, and the pressing step is performed, and the laminated metallized films are separated. It is a method of adhesion between layers.
この発明によって、積層金属化フィルムの層間に溜まっ
ているエアをスムーズに排出させることができるため、
積層金属化フィルムは、層間にエア溜まりをつくること
なく、またエア排出の際の積層ズレもなく、ヒートプレ
スすることができる。したがって、均一かつ十分な積層
金属化フィルム間の層間接着状態を得ることができる。According to this invention, the air accumulated between the layers of the laminated metallized film can be smoothly discharged,
The laminated metallized film can be heat-pressed without forming an air pocket between the layers and without a displacement of the layer when air is discharged. Therefore, a uniform and sufficient interlayer adhesion state between the laminated metallized films can be obtained.
請求項（２）の発明によって積層金属化フィルムの層間
に溜まったエアは一層スムーズに外部へ排出される。According to the invention of claim (2), the air accumulated between the layers of the laminated metallized film is more smoothly discharged to the outside.
この発明のフィルムコンデンサの製造方法の一実施例を
第１図に基づいて説明する。One embodiment of the method of manufacturing the film capacitor of the present invention will be described with reference to FIG.
第１図（ａ）は積層金属化フィルムのプレス工程を示
し、また第１図（ｂ），（ｃ）は、プレス板１の温度変
化（プレス温度カーブ６）および圧力変化（プレス圧力
カーブ７）を示す。FIG. 1 (a) shows a pressing process of a laminated metallized film, and FIGS. 1 (b) and (c) show temperature changes (press temperature curve 6) and pressure changes (press pressure curve 7) of the press plate 1. ) Is shown.
積層金属化フィルム３は、プレス前には、その積層層間
にたくさんのエアをかみ込んだ状態にあり、ヒートプレ
スする際には、このエアをスムーズに外部に排出し、金
属化フィルム間どうしが、均一かつ十分に接着される必
要がある。The laminated metallized film 3 is in a state in which a large amount of air is caught between the laminated layers before pressing, and when heat-pressing, the air is smoothly discharged to the outside, and the metallized films are not separated from each other. Needs to be evenly and well adhered.
この実施例においては、第１図（ｂ），（ｃ）のグラフ
に示すように、プレス板１のプレス温度をプレス温度カ
ーブ６のように、さらにプレス圧力をプレス圧力カーブ
７のように上昇させる。これにより、積層金属化フィル
ム３は、プレス板１に接触して、プレス開始された時に
は、低いプレス温度と低いプレス圧力を加え、その後徐
々にプレス温度およびプレス圧力を上昇してヒートプレ
スされ、この結果、積層金属化フィルム３の層間のエア
がとじこめられることなく、徐々に排出される。すなわ
ち、第１図（ｂ），（ｃ）に示すプレス温度カーブ６お
よびプレス圧力カーブ７に基づいて、温度上昇および圧
力上昇を行うことにより、わずかに残されたエアは、ほ
ぼ完全に排出され、積層金属化フィルム３の層間接着状
態は、均一かつ十分なものとなる。In this embodiment, as shown in the graphs of FIGS. 1 (b) and 1 (c), the press temperature of the press plate 1 is increased as a press temperature curve 6 and the press pressure is increased as a press pressure curve 7. Let Thereby, the laminated metallized film 3 comes into contact with the press plate 1 and, when the pressing is started, a low press temperature and a low press pressure are applied, and thereafter, the press temperature and the press pressure are gradually increased to be heat pressed, As a result, the air between the layers of the laminated metallized film 3 is gradually discharged without being trapped. That is, by slightly increasing the temperature and the pressure based on the press temperature curve 6 and the press pressure curve 7 shown in FIGS. 1 (b) and (c), the slightly left air is almost completely discharged. The interlayer adhesion state of the laminated metallized film 3 becomes uniform and sufficient.
また第１図（ａ）に示すように平板巻取ボビン２に溝
５′を設け、かつ溝５′に沿って積層金属化フィルム３
の積層方向に、貫通穴４を設けることによって、層間の
エアは矢印５の方向にスムーズに排出され、均一かつ十
分な層間接着が、より効果的に行われる。Further, as shown in FIG. 1 (a), the flat plate winding bobbin 2 is provided with a groove 5 ', and the laminated metallized film 3 is provided along the groove 5'.
By providing the through hole 4 in the stacking direction of 1, the air between layers is smoothly discharged in the direction of the arrow 5, and uniform and sufficient interlayer adhesion is more effectively performed.
この実施例に用いたプレス温度は、120℃で10分間プレ
スした後150℃まで温度上昇させ、合計30分間のプレス
を行った。また、プレス圧力については、5kg/cm2で５
分間、15kg/cm2で５分間、30kg/cm2で20分間圧力上昇と
した。The pressing temperature used in this example was 120 ° C. for 10 minutes, then the temperature was raised to 150 ° C., and the pressing was performed for a total of 30 minutes. The pressing pressure is 5 kg / cm 2 and 5
The pressure was increased at 15 kg / cm 2 for 5 minutes and 30 kg / cm 2 for 20 minutes.
なお、このプレス温度およびプレス圧力は、いずれか一
方を徐々に増加させても、層間接着が良好に行われる。
また、溝５′に代えて貫通穴を設けても同様の効果が得
られる。In addition, even if either one of the pressing temperature and the pressing pressure is gradually increased, the interlayer adhesion is satisfactorily performed.
The same effect can be obtained by providing a through hole instead of the groove 5 '.
この発明によれば、積層金属化フィルムのプレス工程に
おいてプレス温度およびプレス圧力の少なくとも一方を
徐々に上昇させるため、積層金属化フィルム間のエアを
スムーズに外部へ排出させることができ、層間のエア溜
まりを防ぎ、このエアの排出による層間の積層ズレも防
ぐことができる。その結果、均一かつ十分な積層金属化
フィルム間の層間接着状態を得ることができるため、容
量特性、形状ともに従来品より安定した積層金属化フィ
ルムコンデンサが得られ、小型化が図られる。According to this invention, since at least one of the press temperature and the press pressure is gradually increased in the step of pressing the laminated metallized film, the air between the laminated metallized films can be smoothly discharged to the outside, and It is possible to prevent accumulation and prevent layer misalignment between layers due to the discharge of air. As a result, a uniform and sufficient interlayer adhesion state between the laminated metallized films can be obtained, so that a laminated metallized film capacitor having more stable capacitance characteristics and shape than conventional products can be obtained, and downsizing can be achieved.
請求項（２）の発明によれば、平板巻取ボビンに設けた
溝または貫通穴および積層金属化フィルムの貫通穴が存
在するため、エアの排出が一層良好に行われる。According to the invention of claim (2), since the groove or the through hole provided in the flat plate winding bobbin and the through hole of the laminated metallized film are present, the air can be discharged more satisfactorily.
第１図（ａ）はこの発明の一実施例のプレス工程を示す
図、第１図（ｂ），（ｃ）は各々プレス時のプレス温度
とプレス圧力を表すグラフ、第２図（ａ）は従来の積層
金属化フィルムのプレス工程を示す図、第２図（ｂ）、
（ｃ）は従来の各々プレス時のプレス温度とプレス圧力
を表すグラフ、第３図は従来の製造方法により製造した
積層金属化フィルムコンデンサの斜視図である。 １……プレス板、２……平板巻取ボビン、３……積層金
属化フィルム、４……貫通穴、５……プレス時における
フィルム層間のエア抜け、５′……溝FIG. 1 (a) is a diagram showing a pressing process according to an embodiment of the present invention, FIGS. 1 (b) and 1 (c) are graphs respectively showing a press temperature and a press pressure during pressing, and FIG. 2 (a). Is a view showing a pressing process of a conventional laminated metallized film, FIG. 2 (b),
(C) is a graph showing the pressing temperature and the pressing pressure at the time of each conventional pressing, and FIG. 3 is a perspective view of a laminated metallized film capacitor manufactured by a conventional manufacturing method. 1 ... Press plate, 2 ... Flat plate winding bobbin, 3 ... Laminated metallized film, 4 ... Through hole, 5 ... Air escape between film layers during pressing, 5 '... Groove
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 31:34 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location B29L 31:34
Claims (2)
フィルムの全面を２枚のプレス板で挾み込んでプレスす
る際に、前記プレス板のプレス圧力およびプレス温度の
少なくとも一方を徐々に上昇させ、この積層金属化フィ
ルム間を層間接着することを特徴とするフィルムコンデ
ンサの製造方法。1. When at least one of the press pressure and the press temperature of the press plate is gradually pressed when the entire surface of the metallized film laminated and wound on a flat plate winding bobbin is pressed by two press plates. And a method of manufacturing a film capacitor, characterized in that the laminated metallized films are bonded to each other.
設け、かつ積層巻取りされた金属化フィルムにも、その
厚み方向に前記平板巻取ボビンの溝もしくは貫通穴に一
致する位置で貫通穴を設ける請求項（１）記載のフィル
ムコンデンサの製造方法。2. A flat plate winding bobbin is provided with a groove or a through hole in advance, and a metallized film that is laminated and wound is penetrated at a position corresponding to the groove or the through hole of the flat plate winding bobbin in the thickness direction thereof. The method for manufacturing a film capacitor according to claim 1, wherein a hole is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1216703A JPH0738362B2 (en) | 1989-08-22 | 1989-08-22 | Method of manufacturing film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1216703A JPH0738362B2 (en) | 1989-08-22 | 1989-08-22 | Method of manufacturing film capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0379015A JPH0379015A (en) | 1991-04-04 |
| JPH0738362B2 true JPH0738362B2 (en) | 1995-04-26 |
Family
ID=16692599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1216703A Expired - Fee Related JPH0738362B2 (en) | 1989-08-22 | 1989-08-22 | Method of manufacturing film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738362B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7141798B2 (en) * | 2019-04-12 | 2022-09-26 | リンナイ株式会社 | stove burner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53139167A (en) * | 1977-05-10 | 1978-12-05 | Matsushita Electric Ind Co Ltd | Method of manufacturing capacitor element |
| JPS58218109A (en) * | 1982-06-11 | 1983-12-19 | 日新電機株式会社 | Method of heat treating film condenser |
-
1989
- 1989-08-22 JP JP1216703A patent/JPH0738362B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0379015A (en) | 1991-04-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |