DE758240C - Process for the production of electrical wound capacitors with a dielectric made of polymer material - Google Patents
Process for the production of electrical wound capacitors with a dielectric made of polymer materialInfo
- Publication number
- DE758240C DE758240C DES132577D DES0132577D DE758240C DE 758240 C DE758240 C DE 758240C DE S132577 D DES132577 D DE S132577D DE S0132577 D DES0132577 D DE S0132577D DE 758240 C DE758240 C DE 758240C
- Authority
- DE
- Germany
- Prior art keywords
- stretched
- capacitors
- production
- dielectric
- polymer material
- 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
Links
- 239000003990 capacitor Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 8
- 239000002861 polymer material Substances 0.000 title claims description 3
- 238000004804 winding Methods 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000007791 dehumidification Methods 0.000 claims description 2
- 238000001465 metallisation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000002699 waste material 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)
Description
Verfahren zur Herstellung elektrischer Wickelkondensatoren mit einem Dielektrikum aus polymerem Werkstoff Kunststoffe sind bekanntlich bereits mit gutem Erfolg für Kondensatorendielektrika verwendet worden. Vor allem haben sich die Polymerisationsprodukte des Styrols infolge ihrer geringen Verluste für diesen Zweck bewährt, wenn auch daneben noch andere Verbindungen, beispielsweise Polyvinylchloride, Celluloseacetate, Polymethacrylsäureester usw., benutzt werden.Method for manufacturing electrical wound capacitors with a Dielectric made of polymeric material Plastics are known to have good properties Success has been used for capacitor dielectrics. First of all, the polymerization products of styrene has proven its worth for this purpose due to its low losses, albeit in addition, other compounds, for example polyvinyl chlorides, cellulose acetates, Polymethacrylic acid esters, etc., can be used.
Die allgemeine Anwendung dieser Kunstprodukte in der üblichen Weise an Stelle der bisher verwendeten Papierlage stößt nun, sofern man Wickelkondensatoren herstellen will, bei einigen dieser Kunststoffe auf Schwierigkeiten, da sie nicht biegefest, sondern spröde sind und außerordentlich leicht brechen. Man beschränkte sich daher auf die Herstellung von Schichtkondensatoren, wobei allerdings eine rationelle Fertigung von größeren Kapazitätswerten nicht möglich ist.The general application of these artifacts in the usual way instead of the previously used paper layer, it is now used, provided that wound capacitors are used wants to manufacture some of these plastics on difficulty as they do not rigid, but brittle and extremely easy to break. One restricted therefore focus on the production of film capacitors, although a rational one Production of larger capacity values is not possible.
Ein großer Fortschritt ist durch die bekannte Herstellung der gereckten Kunstfolien, insbesondere der gereckten Polystyrolbänder, die unter dem Handelsnamen Styroflex bekannt sind, erzielt worden. Solche gereckten Isolierstoffbänder, die nach einem besonderen Verfahren hergestellt werden, können in einer oder in jeder Richtung biegsam und geschmeidig gestaltet werden, so daß sich daraus ohne Schwierigkeiten Wickelkondensatoren fertigen lassen.A big step forward is through the well-known production of the stretched Art films, especially the stretched polystyrene tapes sold under the trade name Styroflex are known to have been achieved. Such stretched insulating strips that produced by a special process, can be in one or in each Direction pliable and pliable be designed so that have wound capacitors manufactured from it without difficulty.
Es wird nun vorgeschlagen, bei der Herstellung von elektrischen Wickelkondensatoren, zu deren Aufbau gereckte Kunststoffbänder aus polymerem Werkstoff als Dielektrikum verwendet werden und bei denen die Kunststoffbänder nur in der Wickelrichtung gereckt sind, derart zu verfahren, daß erfindungsgemäß der Kondensator nach dem Aufwickeln der Isolierstoffbänder zusammen mit selbständigen oder aus Metallisierungen bestehenden Belegungen einer Wärmebehandlung unterzogen wird, bei welcher die allein in der Wickelrichtung gereckten Isolierstoffbänder ganz oder zum Teil entreckt werden.It is now proposed that in the manufacture of electrical wound capacitors, for their construction stretched plastic strips made of polymer material as a dielectric are used and in which the plastic tapes are only stretched in the winding direction are to proceed in such a way that, according to the invention, the capacitor after winding of insulating strips together with independent or metallized ones Allocations are subjected to a heat treatment in which the alone in the Winding direction stretched insulating strips are wholly or partially stretched.
Es wird hierbei von der Eigenschaft der gereckten polymeren Erzeugnisse Gebrauch gemacht, bei einer Erwärmung auf bestimmte Temperaturen sich aus dem gereckten in den ungereckten Zustand zurückzuverwandeln, wodurch unter anderem. bei Wickelkondensatoren eingeschlossene Luft aus dem Wickelkörper herausgequetscht wird. Weiterhin aber hat die Verwendung von einseitig gereckten Isolierstoffbändern aus polymerem Werkstoff für Kondensatorenwickel mit anschließender, durch Erwärmung bedingter Entreckung den überraschenden Vorteil, daß, gleichgültig ob man die Kondensatorenkörper bis zur völligen Entreckung oder nur bis zu einer teilweisen Entreckung der Isolierstoffbänder der Erwärmung aussetzt, nur ein sehr geringer Isolationsausschuß bei den fertigen Kondensatoren auftritt. Wie die Untersuchungen ergaben, liegt dies daran, da.ß bei einseitig gereckten Isolierstoffbändern bei Erwärmung eine Querkontraktion fehlt, so daß keine Bew@°gung des Isoliermaterials auf die Längskante der Belegungen eintritt, wie bei allseitig gereckten Bändern, die sich nicht nur in der Wickelrichtung, sondern auch quer dazu zusammenziehen, wodurch die Isolationsfehler stark begünstigt werden, weil die Belegungslängskanten in das Isoliermaterial eindringen und dieses sogar durchstoßen können.It depends on the properties of the stretched polymeric products Made use, when heated to certain temperatures, from the stretched to transform back into the unstretched state, which among other things. with wound capacitors trapped air is squeezed out of the bobbin. But still uses insulating strips made of polymeric material stretched on one side for capacitor windings with subsequent stretching caused by heating the surprising advantage that, regardless of whether you have the capacitor body up for complete stretching or only up to a partial stretching of the insulating strips exposed to heating, only a very small amount of insulation waste on the finished ones Capacitors occurs. As the investigations showed, this is due to the fact that Insulating tapes stretched on one side lack a transverse contraction when heated, so that no movement of the insulating material occurs on the longitudinal edge of the coverings, as with all-round stretched tapes, which are not only in the winding direction, but also pull together transversely, which greatly increases the risk of insulation faults, because the longitudinal edges of the occupancy penetrate into the insulation material and even this can pierce.
Da die zum Aufbau von Wickelkondensatoren benötigten dielektrischen Zwischenlagen nur in Bandrichtung auf Biegung beansprucht werden, sind daher die in Bandrichtung gereckten polymeren Isolierbänder in gleicher Weise wie allseitig gerecktes Material verwendbar, und gleichzeitig gestatten sie durch die Entreckungsmöglichkeit die Herstellung eines festen Wickelkörpers.Because the dielectric Intermediate layers are only subjected to bending stress in the direction of the tape, are therefore the polymeric insulating tapes stretched in the direction of the tape in the same way as on all sides Stretched material can be used, and at the same time they allow the possibility of stretching the manufacture of a solid bobbin.
Die in dieser Weise hergestellten Wickelkondensatoren zeigen nun aber noch verschiedene Vorteile, die teilweise völlig überraschend sind. Zunächst behält der Fertigwickel infolge der fehlenden Querkontraktion völlig ebene Stirnflächen, die senkrecht auf der Wickelachse stehen, was bei den Kondensatoren mit allseitig gereckter Folie nicht der Fall ist, bei welchen sich nämlich die äußeren Lagen in der Querrichtung stärker zusammenziehen als die mittleren, die unter erhöhtem Druck stehen, so daß die Stirnseiten besonders hei stärkeren Wickeln bei völliger Entreckung der Isolierstoffstreifen kegelförmig gestaltet sind. Die mechanischen Eigenschaften und Werte der einseitig gereckten Folien sind weiterhin viel gleichmäßiger, da die Ausrichtung der Molekülketten nur in einer Richtung, nämlich in Bandrichtung erfolgt. Insbesondere sind die erzielten Folienstärken wesentlich gleichmäßiger, was für die Erzielung einer bestimmten Kapazität, nach Windungszahl oder Bandlänge berechnet, sehr wichtig ist.However, the wound capacitors produced in this way now show various advantages, some of which are completely surprising. Initially retains the finished lap has completely flat end faces due to the lack of transverse contraction, which are perpendicular to the winding axis, which is the case with the capacitors on all sides stretched film is not the case, namely in which the outer layers are in the transverse direction contract more than the middle ones, those under increased pressure stand, so that the front sides are particularly hot when there are thicker wraps with complete stretching the insulating material strips are conical in shape. The mechanical properties and values of the films stretched on one side are still much more uniform since the Alignment of the molecular chains only takes place in one direction, namely in the direction of the tape. In particular, the film thicknesses achieved are much more uniform, what for the achievement of a certain capacity, calculated according to the number of turns or tape length, is very important.
Sehr überraschend ist jedoch, daß die nur einseitig gereckten Folien und damit auch die nach dem Verfahren der Erfindung hergestellten Kondensatoren eine höhere @t'ärmebeständigkeit aufweisen, was von größter Bedeutung ist, da bei diesen noch verhältnismäßig temperaturempfindlichen Stoffen bereits wenige Grade höhere Temperaturbeständigkeit weitere Anwendungsgebiete öffnen.It is very surprising, however, that the films stretched only on one side and thus also the capacitors produced by the method of the invention have a higher @ t 'heat resistance, which is of the utmost importance because with these substances, which are still relatively temperature-sensitive, are already a few degrees higher temperature resistance opens up further areas of application.
Die nach der Erfindung hergestellten Kondensatoren können im wesentlichen in genau der gleichen bekannten Weise wie auch die anderen mit allseitig gereckter Isolierstofffolie hergestellten Wickel «-eiterbehandelt «-erden, insbesondere durch plötzlichen Wärmeanstieg an den Rändern verschweißt werden und durch eine längere, unterhalb der jeweiligen Entreckungstemperatur liegende Temperatur behandelt werden, um einen schleifenfreien Kapazitätsgang zu erzielen.The capacitors produced according to the invention can essentially in exactly the same well-known way as the others with all sides stretched Insulating foil produced wraps "- further treated" - earth, in particular by sudden increase in heat at the edges are welded and by a longer, the temperature below the respective dehumidification temperature are treated, in order to achieve a loop-free capacity change.
Zur Herstellung der Kondensatoren eignen sich alle reckbaren Kunststoffe, neben Polystyrol beispielsweise sonstige Vinylverbindungen, wie Polyvinylchlorid, Celluloseacetate oder auch Mischpolymerisate aus diesen.All stretchable plastics are suitable for the production of the capacitors, in addition to polystyrene, for example, other vinyl compounds such as polyvinyl chloride, Cellulose acetates or copolymers from these.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES132577D DE758240C (en) | 1938-06-17 | 1938-06-17 | Process for the production of electrical wound capacitors with a dielectric made of polymer material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES132577D DE758240C (en) | 1938-06-17 | 1938-06-17 | Process for the production of electrical wound capacitors with a dielectric made of polymer material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE758240C true DE758240C (en) | 1953-08-10 |
Family
ID=7539118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES132577D Expired DE758240C (en) | 1938-06-17 | 1938-06-17 | Process for the production of electrical wound capacitors with a dielectric made of polymer material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE758240C (en) |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT89658B (en) * | 1914-07-23 | 1922-10-10 | Meirowsky & Co A G Fa | Synthetic resin capacitor. |
DE552087C (en) * | 1929-09-10 | 1932-06-10 | I G Farbenindustrie Akt Ges | Electric capacitor |
FR762838A (en) * | 1932-10-24 | 1934-04-19 | Norddeutsche Seekabelwerke Ag | Process for the manufacture of tapes, threads, sheets and flexible tubes of polystyrol or similar artificial materials |
GB416735A (en) * | 1932-04-20 | 1934-09-20 | Elek Zitats Ag Hydrawerk | Improvements in electric condensers |
CH173820A (en) * | 1932-10-24 | 1934-12-15 | Norddeutsche Seekabelwerke Ag | Process for the production of flexible artificial structures using inherently brittle polymerization products of aryl olefins, in particular of polystyrene. |
FR784370A (en) * | 1934-02-09 | 1935-07-22 | Ig Farbenindustrie Ag | Process for producing insulating coatings on metal wires or other long conductors by wrapping with foils or tapes |
GB438329A (en) * | 1935-05-01 | 1935-11-14 | Francis Christopher Stephan | Improvements in or relating to the manufacture of dielectric materials |
US2027962A (en) * | 1933-03-03 | 1936-01-14 | Nat Carbon Co Inc | Production of articles from plastic compositions |
AT145200B (en) * | 1932-10-24 | 1936-04-10 | Norddeutsche Seekabelwerke Ag | Process for the production of molded articles (threads, tapes, foils, pipes, hoses and the like) from polymerization products of aryl olefins, for example polystyrene. |
AT145852B (en) * | 1934-07-24 | 1936-05-25 | Ig Farbenindustrie Ag | Process for the production of polyvinyl compounds. |
FR818126A (en) * | 1936-02-20 | 1937-09-18 | Siemens Ag | Electric dielectric capacitor consisting of a polymerized product |
FR819422A (en) * | 1936-04-01 | 1937-10-19 | Ig Farbenindustrie Ag | Process for manufacturing sheets or films of high extensibility using artificial products with a high degree of polymerization |
FR823499A (en) * | 1936-07-01 | 1938-01-20 | Ig Farbenindustrie Ag | Process for producing thin sheets and webs from thermoplastic organic compositions |
-
1938
- 1938-06-17 DE DES132577D patent/DE758240C/en not_active Expired
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT89658B (en) * | 1914-07-23 | 1922-10-10 | Meirowsky & Co A G Fa | Synthetic resin capacitor. |
DE552087C (en) * | 1929-09-10 | 1932-06-10 | I G Farbenindustrie Akt Ges | Electric capacitor |
GB416735A (en) * | 1932-04-20 | 1934-09-20 | Elek Zitats Ag Hydrawerk | Improvements in electric condensers |
AT145200B (en) * | 1932-10-24 | 1936-04-10 | Norddeutsche Seekabelwerke Ag | Process for the production of molded articles (threads, tapes, foils, pipes, hoses and the like) from polymerization products of aryl olefins, for example polystyrene. |
FR762838A (en) * | 1932-10-24 | 1934-04-19 | Norddeutsche Seekabelwerke Ag | Process for the manufacture of tapes, threads, sheets and flexible tubes of polystyrol or similar artificial materials |
CH173820A (en) * | 1932-10-24 | 1934-12-15 | Norddeutsche Seekabelwerke Ag | Process for the production of flexible artificial structures using inherently brittle polymerization products of aryl olefins, in particular of polystyrene. |
US2027962A (en) * | 1933-03-03 | 1936-01-14 | Nat Carbon Co Inc | Production of articles from plastic compositions |
FR784370A (en) * | 1934-02-09 | 1935-07-22 | Ig Farbenindustrie Ag | Process for producing insulating coatings on metal wires or other long conductors by wrapping with foils or tapes |
AT145852B (en) * | 1934-07-24 | 1936-05-25 | Ig Farbenindustrie Ag | Process for the production of polyvinyl compounds. |
GB438329A (en) * | 1935-05-01 | 1935-11-14 | Francis Christopher Stephan | Improvements in or relating to the manufacture of dielectric materials |
FR818126A (en) * | 1936-02-20 | 1937-09-18 | Siemens Ag | Electric dielectric capacitor consisting of a polymerized product |
FR819422A (en) * | 1936-04-01 | 1937-10-19 | Ig Farbenindustrie Ag | Process for manufacturing sheets or films of high extensibility using artificial products with a high degree of polymerization |
FR823499A (en) * | 1936-07-01 | 1938-01-20 | Ig Farbenindustrie Ag | Process for producing thin sheets and webs from thermoplastic organic compositions |
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