DE964785C - Process for the production of an electrical insulating body - Google Patents
Process for the production of an electrical insulating bodyInfo
- Publication number
- DE964785C DE964785C DES23487A DES0023487A DE964785C DE 964785 C DE964785 C DE 964785C DE S23487 A DES23487 A DE S23487A DE S0023487 A DES0023487 A DE S0023487A DE 964785 C DE964785 C DE 964785C
- Authority
- DE
- Germany
- Prior art keywords
- insulating body
- shaft
- electrical insulating
- heated
- molds
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Description
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines aus einem Schaftteil und zwei Flanschteilen bestehenden elektrischen Isolierkörpers, insbesondere Spulenkörpers aus bei Erwärmung stark schrumpfender Kunststoffolie. Erfindungsgemäß wird die Folie in einer oder mehreren Lagen über zwei in einem der Schaftlänge entsprechenden Abstand voneinander angeordnete flans-chförmige Formen mit überstehenden Rändern gewickelt und so erwärmt, daß die überstehenden Ränder und der zwischen den Formen liegende Teil radial nach innen schrumpfen, und schließlich der zwischen den Formen liegende Teil unter Bildung des Schaftteils weiter nach innen gezogen.The invention relates to a method of making a electrical insulating body consisting of a shaft part and two flange parts, in particular bobbins made of plastic film which shrinks strongly when heated. According to the invention, the film is in one or more layers over two in one of the Flange-shaped shapes arranged at a distance from one another corresponding to the length of the shaft wrapped with protruding edges and heated so that the protruding edges and the part between the molds will shrink radially inward, and finally the part lying between the molds continues to form the shaft part pulled inside.
Um schwach profilierte Gegenstände, z. B. Rohrstücke- od. dgl., mit einem Überzug zu versehen, ist es bekannt, auf diesen eine bei Erwärmung stark schrumpfende Folie aufzuschrumpfen. Bei stark profilierten Körpern, wie z. B. bei Spulenkörpern, genügt dieses Verfahren nicht. Hier bringt erst die Vereinigung des Schrumpfvorganges und. des Ziehens gemäß der Erfindung die gewünschte Wirkung.To lightly profiled objects, e.g. B. Rohrstück- od. The like., With to provide a coating, it is known to provide a strongly shrinking when heated Shrink the film. In the case of strongly profiled bodies, such as B. for bobbins, this procedure is not sufficient. Only here brings the union of the shrinking process and. pulling according to the invention has the desired effect.
DieErfindung soll an Hand des in den Fig. i bis 3 dargestellten Ausführungsbeispieles näher erläutert werden.The invention is intended to be based on the embodiment shown in Figs are explained in more detail.
Die Fig. r bis 3 zeigen verschiedene Abschnitte des Herstellungsverfahrens. Über die aus den Flanschteilen i und 2 und dem Schaftteil 3 bestehende Form wird nach Fig. i in mehreren Lagen eine aus bei Erwärmung stark schrumpfendem elektrischem Isolierstoff bestehende Folie q. mit den überstehenden Rändern 5 und 6 gelegt. Durch Anwendung von Wärme schrumpfen sowohl die überstehenden Ränder 5 und 6 als auch der Mittelteil 7 radial nach innen, wie in Fig. 2 dargestellt ist.FIGS. R to 3 show different sections of the manufacturing process. About the shape consisting of the flange parts i and 2 and the shaft part 3 According to FIG. i, in several layers, an electrical which shrinks strongly when heated Insulating material existing foil q. placed with the protruding edges 5 and 6. By Application of heat will shrink both the protruding edges 5 and 6 as well the central part 7 radially inwards, as shown in FIG.
Mittels der Stempel wird dann der Mittelteil 7 noch weiter nach innen gezogen, bis er nach Fig. 3 an. dem Schaftteil 3 der Form anliegt.The central part 7 is then moved even further inward by means of the stamp pulled until it is shown in FIG. the shaft part 3 of the mold rests.
Die Erfindung läßt sich für mehrere Zwecke verwenden. Um einen elektrisch besonders widerstandsfähigen Flanschkörper herzustellen, kann man als Form einen aus Schaft- und Flanschteilen zusammengesetzten und aus elektrischem Isolierstoff, beispielsweise Hartpapier, bestehenden Spulenkörper verwenden, auf den die Folie aufgeschrumpft und -gezogen wird, wodurch sich ein fugenloser Isolationsauftrag ergibt. Für Verwendung elektrischer Isolierkörper an Bauteilen, an denen der Flanschkörper nicht als Ganzes aufgebracht werden kann, beispielsweise als Zwischenlage zwischen den schellenförmigen Anschlußklemmen für die Oberspannungswicklung und den halsförmigen Teil des Anschlußisolators bei Stromwandlern, wird der ringförmige Isolierkörper in radialer Richtung durchschnitten und so von der Form genommen. Man hat dann zwei halbringförmige Isolierstücke, die an der Einbaustelle wieder zusammengesetzt werden können.The invention can be used for several purposes. To one electric Producing particularly resistant flange bodies can be used as a form composed of shaft and flange parts and made of electrical insulating material, For example, hard paper, use existing bobbins on which the foil is shrunk and pulled, creating a seamless insulation application results. For the use of electrical insulating bodies on components on which the flange body cannot be applied as a whole, for example as an intermediate layer between the clamp-shaped terminals for the high-voltage winding and the neck-shaped The ring-shaped insulating body becomes part of the connection insulator in current transformers cut through in the radial direction and thus removed from the shape. You then have two semi-ring-shaped insulating pieces that are reassembled at the point of installation can.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES23487A DE964785C (en) | 1951-06-13 | 1951-06-13 | Process for the production of an electrical insulating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES23487A DE964785C (en) | 1951-06-13 | 1951-06-13 | Process for the production of an electrical insulating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE964785C true DE964785C (en) | 1957-05-29 |
Family
ID=7477412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES23487A Expired DE964785C (en) | 1951-06-13 | 1951-06-13 | Process for the production of an electrical insulating body |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE964785C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2027962A (en) * | 1933-03-03 | 1936-01-14 | Nat Carbon Co Inc | Production of articles from plastic compositions |
| GB468762A (en) * | 1935-01-30 | 1937-07-12 | Nat Carbon Co Inc | Improvements in and relating to closure means and seals for bottles, cans and other like containers |
| GB500733A (en) * | 1937-08-18 | 1939-02-15 | Julius Veit | A method for the manufacturing of insulating casings for fixed condensers and other electrical components |
| DE760934C (en) * | 1941-12-24 | 1952-12-15 | Aeg | Electric cable for fixed installation |
-
1951
- 1951-06-13 DE DES23487A patent/DE964785C/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2027962A (en) * | 1933-03-03 | 1936-01-14 | Nat Carbon Co Inc | Production of articles from plastic compositions |
| GB468762A (en) * | 1935-01-30 | 1937-07-12 | Nat Carbon Co Inc | Improvements in and relating to closure means and seals for bottles, cans and other like containers |
| GB500733A (en) * | 1937-08-18 | 1939-02-15 | Julius Veit | A method for the manufacturing of insulating casings for fixed condensers and other electrical components |
| DE760934C (en) * | 1941-12-24 | 1952-12-15 | Aeg | Electric cable for fixed installation |
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