JPH044734B2 - - Google Patents
Info
- Publication number
- JPH044734B2 JPH044734B2 JP60093475A JP9347585A JPH044734B2 JP H044734 B2 JPH044734 B2 JP H044734B2 JP 60093475 A JP60093475 A JP 60093475A JP 9347585 A JP9347585 A JP 9347585A JP H044734 B2 JPH044734 B2 JP H044734B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode foil
- protective film
- lead terminal
- welded
- dielectric film
- 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 44
- 230000001681 protective effect Effects 0.000 claims description 33
- 238000003466 welding Methods 0.000 claims description 22
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、リード端子溶接位置の電極箔と誘電
体フイルムとの間に、絶縁破壊防止のための保護
フイルムを配した巻回型コンデンサの製造方法に
係り、特に保護フイルムの取付け方を改善するこ
とによつて、コストの低減、小型化及び信頼性の
向上を図つた巻回型コンデンサの製造方法に関す
る。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a wound type capacitor in which a protective film for preventing dielectric breakdown is arranged between an electrode foil and a dielectric film at the lead terminal welding position. The present invention relates to a manufacturing method, and in particular to a method of manufacturing a wound capacitor that reduces cost, downsizes, and improves reliability by improving the method of attaching a protective film.
［従来の技術］
従来、其の種の巻回型コンデンサの製造方法に
あつては、アルミニウム等より成る電極箔の所定
位置にリード端子を溶接し、これをプラスチツク
フイルム等の誘電体フイルムと交互に積層するよ
うに巻回している。ところが通常、上記リード端
子の溶接部分はバリが発生しやすく、このバリに
よつて誘電体フイルムが損傷を受けて絶縁耐力が
低下し、甚だしい場合には電極箔間の絶縁が破壊
する虞れがある。[Prior Art] Conventionally, in the manufacturing method of this type of wound capacitor, lead terminals are welded to predetermined positions of electrode foil made of aluminum or the like, and dielectric films such as plastic films are alternately welded to the lead terminals. It is wound so that it is laminated. However, the welded parts of the lead terminals are usually prone to burrs, and these burrs can damage the dielectric film and reduce its dielectric strength, and in extreme cases, there is a risk that the insulation between the electrode foils will be destroyed. be.
この対策として従来は、リード端子溶接位置の
電極箔と誘電体フイルムとの間に、誘電体フイル
ムよりも厚い絶縁性の保護フイルムを介挿する方
法が提案されている。 As a countermeasure against this problem, a method has conventionally been proposed in which an insulating protective film, which is thicker than the dielectric film, is inserted between the electrode foil and the dielectric film at the lead terminal welding position.
即ち、この従来の巻回型コンデンサの製造方法
にあつては、第２図に示す如く、一対の電極箔１
と誘電体フイルム２とを、ロール（図示せず）か
ら巻芯３にかけて図の矢印の方向に走行させ、こ
れを一対のローラ４，５を挾んで交互に積層し、
巻芯３によつて巻き取つて巻回型コンデンサを形
成している。 That is, in this conventional method of manufacturing a wound capacitor, as shown in FIG.
and dielectric film 2 are run in the direction of the arrow in the figure from a roll (not shown) to the winding core 3, and are alternately stacked by sandwiching them between a pair of rollers 4 and 5.
It is wound around a winding core 3 to form a wound type capacitor.
上記電極箔１は、走行途中に於いてリード端子
８と共に座台６上に載置され、溶接電極９によつ
て通電されてリード端子８が溶接される。また、
上記ローラー４，５に至る直前の電極箔１と誘電
体フイルム２との間には、保護フイルム７の先端
が配されており、上記保護フイルム７は、電極箔
１のリード端子溶接位置がローラー４，５に達す
る寸前にカツター１０によつて切断される。切断
された保護フイルム７は、ローラー４，５間に引
き込まれ、リード端子溶接位置の電極箔１と誘電
体フイルム２との間に挾持された状態で巻回され
る。 The electrode foil 1 is placed on the pedestal 6 together with the lead terminals 8 while traveling, and the lead terminals 8 are welded by being energized by the welding electrode 9. Also,
The tip of a protective film 7 is disposed between the electrode foil 1 and the dielectric film 2 immediately before reaching the rollers 4 and 5, and the protective film 7 has a lead terminal welding position of the electrode foil 1 on the roller. It is cut by the cutter 10 just before reaching 4 and 5. The cut protective film 7 is drawn between the rollers 4 and 5 and wound while being held between the electrode foil 1 and the dielectric film 2 at the lead terminal welding position.
［発明が解決しようとする課題］
上述した巻回型コンデンサの製造方法にあつて
は、切断した保護フイルム７をローラー４，５間
に引き込んで電極箔１と誘電体フイルム２との間
に挾持させるため、切断のタイミングや巻回速度
等により、保護フイルム７の長手方向の位置ズレ
や曲がりが発生する虞れがある。上記長手方向の
位置ズレを見込んで長い保護フイルムを使用した
場合には、材料費が嵩むと共に製造されたコンデ
ンサも大型となり、しかもこの方法によつては保
護フイルムの曲がりを防止することは不可能で、
甚だしい場合には保護フイルムが脱落することも
あり、これが其の種のコンデンサの信頼性を低下
させる原因となつている。[Problems to be Solved by the Invention] In the above-described method for manufacturing a wound type capacitor, the cut protective film 7 is drawn between the rollers 4 and 5 and sandwiched between the electrode foil 1 and the dielectric film 2. Therefore, there is a possibility that the protective film 7 may be misaligned or bent in the longitudinal direction depending on cutting timing, winding speed, etc. If a long protective film is used in anticipation of the above-mentioned longitudinal misalignment, the cost of materials will increase and the manufactured capacitor will also be large, and furthermore, it is impossible to prevent the protective film from bending with this method. in,
In extreme cases, the protective film may fall off, which causes a decrease in the reliability of these types of capacitors.
本発明は、上述の点に鑑み案出されたもので、
保護フイルムの取付方法を改善することによつ
て、価格を低減させると共に小型化を図り、しか
も信頼性を向上させ得る巻回型コンデンサの製造
方法を実現することを目的とする。 The present invention was devised in view of the above points, and
The object of the present invention is to realize a method of manufacturing a wound type capacitor that can reduce the cost, reduce the size, and improve reliability by improving the method of attaching a protective film.
［課題を解決するための手段］
上述の目的を達成するため、本発明の巻回型コ
ンデンサの製造方法は、リード端子を溶接した電
極箔と誘電体フイルムとを積層すると共に、上記
リード端子溶接位置の電極箔と誘電体フイルムと
の間に絶縁性の保護フイルムを配して巻回する巻
回型コンデンサの製造方法に於いて、上記電極箔
とリード端子との溶接時に、上記誘電体フイルム
と接する側の電極箔面に保護フイルムを配し、上
記リード端子を電極箔に溶接する時に生じる熱に
よつて上記保護フイルムを電極箔のリード端子溶
接位置に溶着することを特徴とするものである。[Means for Solving the Problems] In order to achieve the above-mentioned object, the method for manufacturing a wound capacitor of the present invention includes laminating an electrode foil to which a lead terminal is welded and a dielectric film, as well as laminating the electrode foil to which the lead terminal is welded. In a method for manufacturing a wound type capacitor in which an insulating protective film is placed between an electrode foil and a dielectric film, and the electrode foil is welded to a lead terminal, the dielectric film is A protective film is disposed on the side of the electrode foil that is in contact with the electrode foil, and the protective film is welded to the welding position of the lead terminal of the electrode foil by the heat generated when the lead terminal is welded to the electrode foil. be.
［作 用］
電極箔とリード端子との溶接時に、誘電体フイ
ルムと接する側の電極箔面に保護フイルムを配
し、リード端子を電極箔に溶接する時に生じる熱
によつて上記保護フイルムを電極箔のリード端子
溶接位置に溶着するので、何等特別な装置や工程
を必要とせずに、保護フイルムを所定位置に確実
に固定することができ、しかも保護フイルムの長
さも、電極箔のリード端子溶接位置を覆うだけの
長さで十分となり、材料の使用量が少なくなる。[Function] When welding the electrode foil and the lead terminal, a protective film is placed on the side of the electrode foil that is in contact with the dielectric film, and the heat generated when welding the lead terminal to the electrode foil causes the protective film to become resistant to the electrode. Since it is welded to the lead terminal welding position of the foil, the protective film can be securely fixed in place without the need for any special equipment or process, and the length of the protective film can also be adjusted to match the lead terminal welding position of the electrode foil. The length is sufficient to cover the position, reducing the amount of material used.
［実施例］
以下、図面に基づいて本発明の一実施例を説明
する。[Example] Hereinafter, an example of the present invention will be described based on the drawings.
第１図は、本発明の一実施例に係る製造方法に
於ける巻回機構の概略を示すもので、図に於い
て、１はアルミニウムや錫等の金属より成る電極
箔、２はポリエステル、ポリプロピレン或いはボ
リエチレン等のプラスチツクより成る誘電体フイ
ルムを示している。 FIG. 1 schematically shows a winding mechanism in a manufacturing method according to an embodiment of the present invention. In the figure, 1 is an electrode foil made of metal such as aluminum or tin, 2 is a polyester foil, A dielectric film made of plastic such as polypropylene or polyethylene is shown.
上記一対の電極箔１及び誘電体フイルム２は、
巻芯３の回転によつてロール（図示せず）から繰
り出されて図示矢印の方向に走行するとともに、
一対のローラ４，５間に挾持されて積層され、巻
芯３に巻き取られて巻回型コンデンサとして形成
される。 The pair of electrode foil 1 and dielectric film 2 are as follows:
As the winding core 3 rotates, it is unwound from a roll (not shown) and travels in the direction of the arrow shown in the figure.
They are sandwiched and stacked between a pair of rollers 4 and 5, and wound around a winding core 3 to form a wound capacitor.
また上記電極箔１は、走行途中に於いて、その
走行が、一旦停止して石英板等の絶縁物より成る
座台６上に載置され、更に上記電極箔１と座台６
との間にプラスチツク等の加熱溶融性を有する絶
縁物より成る保護フイルム７が挿入されると共
に、上記電極箔１にリード端子８の扁平部分が載
置される。 Further, while the electrode foil 1 is running, its running is temporarily stopped and placed on a base 6 made of an insulating material such as a quartz plate, and then the electrode foil 1 and the base 6 are placed on the base 6 made of an insulating material such as a quartz plate.
A protective film 7 made of heat-meltable insulating material such as plastic is inserted between the electrode foil 1 and the flat portion of the lead terminal 8.
然る後、上記リード端子８上に溶接電極９が降
下して、上記リード端子８、電極箔１及び保護フ
イルム７を座台６に押圧し、更に上記溶接電極９
に通電してこのジユール熱によつて上記電極箔１
とリード端子８とが溶接され、同時に上記保護フ
イルム７が電極箔１に溶着される。 Thereafter, the welding electrode 9 is lowered onto the lead terminal 8 to press the lead terminal 8, electrode foil 1 and protective film 7 onto the seat 6, and then the welding electrode 9 is lowered onto the lead terminal 8.
The electrode foil 1
and the lead terminal 8 are welded, and at the same time the protective film 7 is welded to the electrode foil 1.
そして、上記保護フイルム７は、カツター１０
によつて電極箔１のリード端子溶接位置を覆うに
足りる所定の長さに切断され、上記電極箔１と誘
電体フイルム２との間に確実に配置される。 The protective film 7 is attached to the cutter 10.
The electrode foil 1 is cut to a predetermined length sufficient to cover the lead terminal welding position, and is securely placed between the electrode foil 1 and the dielectric film 2.
［発明の効果］
以上詳述の如く、本発明によれば、電極箔とリ
ード端子との溶接時に、誘電体フイルムと接する
側の電極箔面に保護フイルムを配し、リード端子
を電極箔に溶接する時に生じる熱によつて上記保
護フイルムを電極箔のリード端子溶接位置に溶着
するので、溶着のための特別な装置や工程を要す
ることなく、保護フイルムを所定位置に確実に固
定できて、保護フイルムの位置ズレ、曲がり或い
は脱落等を防止することができる。しかも、保護
フイルムの長手方向の位置ズレを見込んで長大な
保護フイルムを使用する必要がないため、材料の
使用量を削減できる。従つて、本発明によれば、
リード端子の溶接部分による誘電体フイルムの損
傷に起因する信頼性低下の虞れがなく、しかも小
型で安価な巻回型コンデンサを得ることができる
ものである。[Effects of the Invention] As detailed above, according to the present invention, when welding the electrode foil and the lead terminal, a protective film is disposed on the side of the electrode foil that contacts the dielectric film, and the lead terminal is attached to the electrode foil. Since the protective film is welded to the welding position of the lead terminal of the electrode foil by the heat generated during welding, the protective film can be reliably fixed in a predetermined position without requiring any special equipment or process for welding. It is possible to prevent the protective film from shifting, bending, or falling off. Furthermore, since there is no need to use a long protective film in consideration of displacement in the longitudinal direction of the protective film, the amount of materials used can be reduced. Therefore, according to the present invention:
It is possible to obtain a wound type capacitor that is small and inexpensive without the risk of deterioration in reliability due to damage to the dielectric film due to welded portions of lead terminals.
第１図は本発明の一実施例の巻回型コンデンサ
の製造法に係る巻回機構の概略説明図、第２図は
従来例に於ける巻回機構の概略説明図である。
１…電極箔、２…誘電体フイルム、６…座台、
７…保護フイルム、８…リード端子、９…溶接電
極。
FIG. 1 is a schematic explanatory diagram of a winding mechanism according to a method for manufacturing a wound capacitor according to an embodiment of the present invention, and FIG. 2 is a schematic explanatory diagram of a winding mechanism in a conventional example. 1... Electrode foil, 2... Dielectric film, 6... Base,
7...Protective film, 8...Lead terminal, 9...Welding electrode.
Claims (1)
ムとを積層すると共に、上記リード端子溶接位置
の電極箔と誘電体フイルムとの間に絶縁性の保護
フイルムを配して巻回する巻回型コンデンサの製
造方法に於いて、上記電極箔とリード端子との溶
接時に、上記誘電体フイルムと接する側の電極箔
面に保護フイルムを配し、上記リード端子を電極
箔に溶接する時に生じる熱によつて上記保護フイ
ルムを電極箔のリード端子溶接位置に溶着するこ
とを特徴とする巻回型コンデンサの製造方法。1. A wound type capacitor in which an electrode foil to which a lead terminal is welded and a dielectric film are laminated, and an insulating protective film is placed between the electrode foil and the dielectric film at the welding position of the lead terminal and wound. In the manufacturing method, when welding the electrode foil and the lead terminal, a protective film is placed on the side of the electrode foil in contact with the dielectric film, so that the heat generated when welding the lead terminal to the electrode foil is prevented. A method for manufacturing a wound type capacitor, characterized in that the protective film is welded to the lead terminal welding position of the electrode foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60093475A JPS61253775A (en) | 1985-04-30 | 1985-04-30 | Manufacture of rolled type capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60093475A JPS61253775A (en) | 1985-04-30 | 1985-04-30 | Manufacture of rolled type capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61253775A JPS61253775A (en) | 1986-11-11 |
| JPH044734B2 true JPH044734B2 (en) | 1992-01-29 |
Family
ID=14083365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60093475A Granted JPS61253775A (en) | 1985-04-30 | 1985-04-30 | Manufacture of rolled type capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61253775A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431551A (en) * | 1977-08-15 | 1979-03-08 | Fujitsu Ltd | Method of making wound type plastic film capacitor |
| JPS57181114A (en) * | 1981-05-01 | 1982-11-08 | Kaitou Seisakusho Kk | Device for inserting protective material of electrode tripping wire in step of producing condenser |
| JPS5854623A (en) * | 1981-09-28 | 1983-03-31 | ダイアホイル株式会社 | Method of producing foil wound condenser |
| JPS5863123A (en) * | 1981-10-12 | 1983-04-14 | 信英電子株式会社 | Plastic film condenser |
-
1985
- 1985-04-30 JP JP60093475A patent/JPS61253775A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431551A (en) * | 1977-08-15 | 1979-03-08 | Fujitsu Ltd | Method of making wound type plastic film capacitor |
| JPS57181114A (en) * | 1981-05-01 | 1982-11-08 | Kaitou Seisakusho Kk | Device for inserting protective material of electrode tripping wire in step of producing condenser |
| JPS5854623A (en) * | 1981-09-28 | 1983-03-31 | ダイアホイル株式会社 | Method of producing foil wound condenser |
| JPS5863123A (en) * | 1981-10-12 | 1983-04-14 | 信英電子株式会社 | Plastic film condenser |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61253775A (en) | 1986-11-11 |
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