DE2831736A1 - Film capacitors made from metallised plastic foil strips - which are cut from wide sheet of metallised plastic foil for rational mass prodn. - Google Patents
Film capacitors made from metallised plastic foil strips - which are cut from wide sheet of metallised plastic foil for rational mass prodn.Info
- Publication number
- DE2831736A1 DE2831736A1 DE19782831736 DE2831736A DE2831736A1 DE 2831736 A1 DE2831736 A1 DE 2831736A1 DE 19782831736 DE19782831736 DE 19782831736 DE 2831736 A DE2831736 A DE 2831736A DE 2831736 A1 DE2831736 A1 DE 2831736A1
- Authority
- DE
- Germany
- Prior art keywords
- metal layer
- strips
- plastic foil
- strip
- insulating
- 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.)
- Ceased
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 title claims abstract description 6
- 239000011888 foil Substances 0.000 title abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000002985 plastic film Substances 0.000 claims description 15
- 229920006255 plastic film Polymers 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 2
- 238000001465 metallisation Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
Verfahren zur Herstellung elektrischer SchichtkondensatorenProcess for the production of electrical film capacitors
mit Kunststoffolie Zusatz zu Patent . ... ... (Patentanmeldung P 27 29 153) Das Hauptpatent beschreibt ein Verfahren zur Herstellung elektrischer Schichtkondensatoren, bei dem mindestens eine langgestreckte bandförmige Kunststoffolie verwendet wird, die beidseitig derart mit Metallschichten versehen ist, daß in ihrer Längsrichtung auf ihren beiden Oberflächen mindestens ein isolierender Streifen frei bleibt, und bei dem die mit Metallschichten versehene Kunststoffolie zu einem zylindrischen Wickel aufgewickelt und der Wickel an seinen Stirnseiten zur Kontaktierung shoopiert wird. with plastic film addition to patent. ... ... (patent application P 27 29 153) The main patent describes a process for the production of electrical Layered capacitors, in which at least one elongated strip-shaped plastic film is used, which is provided on both sides with metal layers that in their At least one insulating strip lengthways on both surfaces remains free, and in which the plastic film provided with metal layers becomes one cylindrical winding wound and the winding on its end faces for contacting is shooped.
Eine solche Fertigungstechnik ist besonders einfach; insbesondere kommt man ohne ;Kontaktierungs drähte , wie sie beispielsweise in der US-PS 3 917 986 verlangt werden, und ohne eine pendelnde Aufwickelvorrichtung (DE-OS 2 451 863) aus.Such a manufacturing technique is particularly simple; in particular you come without; contacting wires, such as those in US Pat. No. 3,917 986 are required, and without a pendular winding device (DE-OS 2 451 863) the end.
In den dargestellten Ausführungsbeispielen des Hauptpatents greifen die Metallisierungen stets um die Kanten der Kunststoffolie herum (vgl. hierzu auch US-PS 3 917 986).Grab in the illustrated embodiments of the main patent the metallizations always around the edges of the plastic film (see also U.S. Patent 3,917,986).
Eine solche Maßnahme gewährleistet eine gute Kontaktierung, verlangt allerdings, daß die Metallisierung - und damit auch die isolierenden Streifen - erst nach der Vereinzelung der Kunststoffolien erfolgt.Such a measure ensures good contact is required however, that the metallization - and thus also the insulating strips - takes place only after the separation of the plastic films.
Um die Gesamtherstellung des geschilderten Kondensators noch rationeller zu gestalten, ohne hierdurch die Kondensator-Kenndaten zu verschlechtern, ist im Rahmen des Verfahrensprinzips des Hauptpatents bei einer Methode der eingangs genannten Art erfindungsgemäß vorgesehen, daß zunächst ein breites Kunststoffband ("Mutterband") beidseitig mit einer Metallschicht versehen wird und daß dann die bandförmigen Kunststoffolien aus dem Mutterband vereinzelt werden.To make the overall production of the capacitor described even more efficient to design without impairing the capacitor characteristics is im Under the procedural principle of the main patent for one of the methods mentioned at the beginning Kind according to the invention that initially a wide plastic band ("mother band") is provided on both sides with a metal layer and that then the band-shaped plastic films are separated from the mother ligament.
Bei der vorgeschlagenen Schrittabfolge kann man den Beschichtungsvorgang wie auch die Erzeugung der isolierenden Streifen - sei es durch mechanische oder elektrische Entfernung der Metallisierung oder sei es durch Maskierung des noch unbeschichteten Bandes - vereinfachen. Wenn dabei auch die beiden Stirnflächen der Kunststoffolien nicht mehr mitmetallisiert sind, so bedeutet dies keinen ins Gewicht fallenden Nachteil, da die benötigten Kontakte durch die nachfolgende Shoopierung in ausreichendem Maße hergestellt werden.With the proposed sequence of steps, one can use the coating process as well as the production of the insulating strips - be it by mechanical or electrical removal of the metallization or be it by masking the still uncoated tape - simplify. If the two end faces of the Plastic foils are no longer also metallized, so this does not mean any weight falling disadvantage, since the required contacts by the subsequent shooping be produced to a sufficient extent.
Ein in der vorgeschlagenen Weise gefertigter Kondensator kann dann mit besonders hohen Strömen belastet werden, wenn die isolierenden Streifen jeweils nach innen versetzt sind, wenn also an den beiden Kontakträndern jeweils ein Metallschichtstreifen verbleibt. Diese Streifen sind vorzugsweise zwischen 0,5 und 5 mm breit; die im Einzelfall zu wählende Streifenbreite hängt vor allem von der zu erwartenden Spannungsbelastung ab.A capacitor manufactured in the manner proposed can then are loaded with particularly high currents when the insulating strips each are offset inward, that is, if there is a metal layer strip on each of the two contact edges remains. These strips are preferred between 0.5 and 5 mm wide; the strip width to be selected in the individual case depends above all on the one to be expected Voltage load.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand zusätzlicher Ansprüche.Further advantageous refinements and developments of the invention are the subject of additional claims.
Die Erfindung wird nun anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der beigefügten Figur näher erläutert.The invention is now based on a preferred embodiment explained in more detail in connection with the accompanying figure.
Die Figur zeigt einen Querschnitt durch eine als Dielektrikum fungierende Kunststoffolie 1 sowie eine weitere dielektrische Folie 2, die zusammen zu einem Kondensator gewickelt werden.The figure shows a cross section through a acting as a dielectric Plastic film 1 and another dielectric film 2, which together to form a Capacitor to be wound.
Die Kunststoffolie 1 kann beispielsweise aus Polyester, Polycarbonat, Polysulfon oder Polypropylen bestehen. Sie ist normalerweise zwischen 2 - 20 pm dick und trägt beidseitig jeweils eine Metallschicht 3 bzw. 4. In jeder dieser Metallisierungen, für die etwa Aluminium oder Zink verwendet werden könnte, ist ein isolierender Streifen 5 bzw. 6 freigelegt. Diese Streifen verlaufen auf der Randzone der Kunststoffolie, halten jedoch zu den - unmetallisierten -Stirnflächen der Folie einen Abstand ein, so daß jeweils ein Metallschichtstreifen 7 bzw. 8- stehen bleibt. Diese Streifen sind je nach der möglichen Spannungsbelastung Bruchteile eines Millimeters bis einige Millimeter breit.The plastic film 1 can for example be made of polyester, polycarbonate, Polysulfone or polypropylene are made. It is usually between 2 - 20 pm thick and has a metal layer 3 or 4 on both sides. In each of these metallizations, for which aluminum or zinc could be used is an insulating strip 5 or 6 exposed. These strips run on the edge zone of the plastic film, however, keep a distance to the - unmetallized - end faces of the film, so that in each case a metal layer strip 7 or 8 remains. These strips are fractions of a millimeter to a few, depending on the possible voltage load Millimeters wide.
Die isolierende Folie 2 ist unbedampft; sie bildet eine dielektrische Zwischenlage.The insulating film 2 is not steamed; it forms a dielectric Liner.
Unter Verwendung der beiden Folien 1, 2 läßt sich ein Kondensator folgendermaßen bequem herstellen.Using the two foils 1, 2 can be a capacitor Conveniently manufacture as follows.
Zunächst metallisiert man ein Mutterband auf beiden Seiten.First, a mother band is metallized on both sides.
Die isolierenden Streifen werden dabei entweder durch Abdeckung des noch nicht beschichteten Bandes oder durch Freilegen der Metallschicht herausgearbeitet. Anschließend schneidet man die einzelnen Folien aus dem Nutterband heraus. Die Schnittlinien verlaufen dabei etwas neben den isolierenden Streifen. Hiernach wickelt man jede der vereinzelten Kunststoffolien mit einer dielektrischen Zwischenlage auf. Dann werden die beiden Stirnseiten des so entstandenen Wickels beshoopt. Dann fährt man in an sich bekannter Weise mit der Fertigstellung des Kondensators fort.The insulating strips are either covered by the not yet coated tape or worked out by exposing the metal layer. Then the individual foils are cut out of the nut tape. The cutting lines run a little next to the insulating strips. After that you wind each one of the isolated plastic films with a dielectric intermediate layer. then Both ends of the resulting roll are beshoopted. Then you drive continues in a manner known per se with the completion of the capacitor.
Das fertige Bauelement verträgt bei Belastung die gleichen Stromstärken wie Kondensatoren mit beidseitig bedampfter Trägerfolie.The finished component can withstand the same current intensities under load like capacitors with a backing film vapor-deposited on both sides.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782831736 DE2831736A1 (en) | 1978-07-19 | 1978-07-19 | Film capacitors made from metallised plastic foil strips - which are cut from wide sheet of metallised plastic foil for rational mass prodn. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782831736 DE2831736A1 (en) | 1978-07-19 | 1978-07-19 | Film capacitors made from metallised plastic foil strips - which are cut from wide sheet of metallised plastic foil for rational mass prodn. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2831736A1 true DE2831736A1 (en) | 1980-01-31 |
Family
ID=6044800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782831736 Ceased DE2831736A1 (en) | 1978-07-19 | 1978-07-19 | Film capacitors made from metallised plastic foil strips - which are cut from wide sheet of metallised plastic foil for rational mass prodn. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2831736A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT386296B (en) * | 1981-02-27 | 1988-07-25 | Illinois Tool Works | CAPACITOR ARRANGEMENT AND METHOD AND DEVICE FOR THEIR PRODUCTION |
US4771362A (en) * | 1986-09-02 | 1988-09-13 | Siemens Aktiengesellschaft | Electrical capacitor composed of a consolidated winding or consolidated stack of metallized plastic plies layered to one another and method for the manufacture thereof |
US4841411A (en) * | 1987-05-12 | 1989-06-20 | Siemens Aktiengesellschaft | Electrical capacitors having low capacitance tolerances and method for the manufacture thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2435441A (en) * | 1942-10-23 | 1948-02-03 | Hunt A H Ltd | Process for demetallizing metallized paper |
US3419770A (en) * | 1967-02-08 | 1968-12-31 | Matsushita Electric Ind Co Ltd | Metallized paper condensers |
US3617834A (en) * | 1970-08-31 | 1971-11-02 | Illinois Tool Works | Monolithic capacitor components and process for producing same |
US3917936A (en) * | 1974-02-20 | 1975-11-04 | Wayne T Reader | Method and apparatus for measuring the cross-correlation of two dynamic mechanical quantities |
-
1978
- 1978-07-19 DE DE19782831736 patent/DE2831736A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2435441A (en) * | 1942-10-23 | 1948-02-03 | Hunt A H Ltd | Process for demetallizing metallized paper |
US3419770A (en) * | 1967-02-08 | 1968-12-31 | Matsushita Electric Ind Co Ltd | Metallized paper condensers |
US3617834A (en) * | 1970-08-31 | 1971-11-02 | Illinois Tool Works | Monolithic capacitor components and process for producing same |
US3917936A (en) * | 1974-02-20 | 1975-11-04 | Wayne T Reader | Method and apparatus for measuring the cross-correlation of two dynamic mechanical quantities |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT386296B (en) * | 1981-02-27 | 1988-07-25 | Illinois Tool Works | CAPACITOR ARRANGEMENT AND METHOD AND DEVICE FOR THEIR PRODUCTION |
US4771362A (en) * | 1986-09-02 | 1988-09-13 | Siemens Aktiengesellschaft | Electrical capacitor composed of a consolidated winding or consolidated stack of metallized plastic plies layered to one another and method for the manufacture thereof |
US4841411A (en) * | 1987-05-12 | 1989-06-20 | Siemens Aktiengesellschaft | Electrical capacitors having low capacitance tolerances and method for the manufacture thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8131 | Rejection |