DE1112578B - Method for producing an electrical winding arrangement with a casing from a castable, thermosetting plastic compound - Google Patents
Method for producing an electrical winding arrangement with a casing from a castable, thermosetting plastic compoundInfo
- Publication number
- DE1112578B DE1112578B DES27322A DES0027322A DE1112578B DE 1112578 B DE1112578 B DE 1112578B DE S27322 A DES27322 A DE S27322A DE S0027322 A DES0027322 A DE S0027322A DE 1112578 B DE1112578 B DE 1112578B
- Authority
- DE
- Germany
- Prior art keywords
- enveloping body
- winding
- resin
- casting
- inner part
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- 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
- H01F41/127—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Description
Verfahren zum Herstellen einer elektrischen Wicklungsanordnung mit einem Hüllkörper aus einer gießbaren, duroplastischen Kunststoffmasse Gegenstand der Patentanmeldung S 26986 VIII c / 21 g ist ein Verfahren zum Herstellen einer elektrischen Wicklungsanordnung mit einem sie auch innen umschließenden einstückigen Hüllkörper aus einer gießbaren, duroplastischen Kunststoffmasse, vorzugsweise der Wicklung eines Meßwandlers. Jenes Verfahren ist dadurch gekennzeichnet, daß unter Verwendung der an sich bekannten Maßnahme, eine Wicklung auf einen Spulentragkörper aufzubringen und sie dann an dem vom Spulentragkörper frei gelassenen Teil ihrer Außenfläche mit einer sich an den Spulentragkörper anschließenden gießbaren, duroplastischen Isoliermasse zu verschließen, zunächst der innere Teil des Hüllkörpers aus einem beim Aushärten schrumpfenden Gießharz, z. B. Äthoxylinharz, in Form eines Spulentragkörpers gegossen, dann auf diesen die Wicklung aufgebracht und schließlich der restliche Teil des Hüllkörpers aus dem gleichen Gießharz an den inneren Teil des Hüllkörpers angegossen wird.Method for producing an electrical winding arrangement with an enveloping body made of a castable, thermosetting plastic mass object the patent application S 26986 VIII c / 21 g is a method for producing a electrical winding arrangement with a one-piece enclosing it inside Enveloping body made of a castable, thermosetting plastic compound, preferably the Winding a transducer. That method is characterized in that under Use of the known measure, a winding on a bobbin to apply and then to the part of her left free by the bobbin Outer surface with a castable, thermosetting plastic that adjoins the bobbin To close insulating compound, first the inner part of the enveloping body from a when curing shrinking resin, z. B. ethoxylin resin, in the form of a bobbin poured, then applied the winding to this and finally the rest Part of the enveloping body made of the same casting resin on the inner part of the enveloping body is cast on.
Die Erfindung bezieht sich auf eine vorteilhafte Weiterbildung jenes Verfahrens. Für den Fall, daß das vorgenannte Verfahren unter Imprägnieren der Wicklung mit Gießharz durchgeführt werden soll, gibt die genannte Patentanmeldung bereits die Lehre, das Imprägnieren der Wicklung vor dem Angießen des restlichen Teiles des Hüllkörpers vorzunehmen. Auch gemäß der vorliegenden Weiterbildung des genannten Verfahrens findet ein Imprägnieren der Wicklung mit Gießharz statt. Die Erfindung bezieht sich mithin auf ein Verfahren zum Herstellen einer elektrischen Wicklung mit einem sie auch innen umschließenden einstückigen Hüllkörper aus einer gießbaren, duroplastischen Kunststoffmasse, vorzugsweise der Wicklung eines Meßwandlers, derart, daß zunächst der innere Teil des Hüllkörpers aus einem beim Aushärten schrumpfenden Gießharz, z. B. Äthoxylinharz, in Form eines Spulentragkörpers gegossen, dann auf diesen die Wicklung aufgebracht und schließlich der restliche Teil des Hüllkörpers aus dem gleichen Gießharz an den inneren Teil des Hüllkörpers angegossen wird, unter Imprägnieren der Wicklung mit Gießharz, nach Patentanmeldung S 26986 V1II c / 21g. Erfindungsgemäß ist ein solches Verfahren dadurch gekennzeichnet, daß die Wicklung beim Angießen des restlichen Teiles des Hüllkörpers mit Gießharz imprägniert wird. Hierdurch wird der Imprägniervorgang mit dem Angießvorgang vereinigt, und die Gesamtarbeit wird dadurch einfacher. Besonders vorteilhaft ist es, die gegebenenfalls mit Lagen von Papier gewickelte Wicklung stufenweise zu imprägnieren, und zwar erst mit reinem Gießharz und dann mit mit Füllstoff versetztem Gießharz. Es hat sich gezeigt, daß hierdurch geringere Spannungen auftreten.The invention relates to an advantageous further development of that Procedure. In the event that the aforementioned method involves impregnating the winding is to be carried out with casting resin, the aforementioned patent application already gives the teaching, the impregnation of the winding before casting on the remaining part of the enveloping body. Also according to the present development of the above In the process, the winding is impregnated with casting resin. The invention thus relates to a method for producing an electrical winding with a one-piece enveloping body made of a castable, thermosetting plastic compound, preferably the winding of a transducer, in such a way that initially the inner part of the enveloping body consists of a shrinking during curing Cast resin, e.g. B. ethoxylin resin, cast in the form of a bobbin, then on this applied the winding and finally the remaining part of the enveloping body is cast from the same resin to the inner part of the enveloping body, below Impregnation of the winding with casting resin, according to patent application S 26986 V1II c / 21g. According to the invention, such a method is characterized in that the winding is impregnated with casting resin when casting on the remaining part of the enveloping body. This combines the impregnation process with the casting process, and the overall work this will make it easier. It is particularly advantageous, if necessary, with layers to impregnate winding wrapped in paper step by step, first with pure Cast resin and then with cast resin mixed with filler. It has been shown that this results in lower tensions.
Um das Gießen an dem in Form eines Spulentragkörpers gegossenen Teil des Hüllkörpers besser haften zu lassen, wird dieser innere Teil günstig mit Durchbrechungen, also z. B. öffnungen, Bohrungen od. dgl., versehen, in die sich beim Imprägnieren das Gießharz festsetzt. Wenn dem Gießharz für den inneren Teil des Hüllkörpers in an sich bekannter Weise Füllstoff, z. B. Quarzmehl bei Äthoxylinharz, beigemengt wird, so ist es vorteilhaft, den Füllstoff in solcher Menge dem Gießharz beizumengen, daß der Wärmeausdehnungskoeffizient des inneren Hüllkörperteiles dem Wärmeausdehnungskoeffizienten der Wicklung mindestens annähernd gleich ist. Besonders günstige Verhältnisse ergeben sich, wenn die Wandstärke des inneren Teiles des Hüllkörpers im Verhältnis zum Außendurchmesser der gewickelten Spule gering gehalten wird, vorzugsweise so, daß das Verhältnis ist. An Hand der Zeichnung wird das Verfahren nach der Erfindung an einem Beispiel erläutert. Die Zeichnung zeigt im Diagonalschnitt einen inneren Hüllkörperteil 1 in Form eines Spulentragkörpers. Dieser ist an seinem Umfang mit Bohrungen 2 versehen, die auch, vorzugsweise in unregelmäßigen Abständen, in den Flanschen 3 des Spulentragkörpers angeordnet werden. Die Form der Durchbrechungen wie auch die Form des Spulentragkörpers sind aber durch dieses Ausführungsbeispiel nicht begrenzt. So kann der Spulentragkörper statt eines runden z. B. auch einen viereckigen Querschnitt mit gitterförmigen Durchbrechungen haben oder einem anderen Wicklungsprofil angepaßt sein, wenn es für den Aufbau eines Meßwandlers od. dgl. in der Gesamtanordnung notwendig erscheint.In order to allow the casting to adhere better to the part of the enveloping body cast in the form of a bobbin, this inner part is conveniently provided with openings, so z. B. openings, bores or the like. Provided, in which the resin sets during impregnation. If the casting resin for the inner part of the enveloping body in a known manner filler, for. B. quartz powder in ethoxylin resin is added, it is advantageous to add the filler to the casting resin in such an amount that the coefficient of thermal expansion of the inner casing part is at least approximately equal to the coefficient of thermal expansion of the winding. Particularly favorable conditions arise when the wall thickness of the inner part of the enveloping body is kept small in relation to the outer diameter of the wound coil, preferably so that the ratio is. The method according to the invention is explained using an example with reference to the drawing. The drawing shows, in diagonal section, an inner casing part 1 in the form of a bobbin. This is provided on its circumference with bores 2, which are also arranged, preferably at irregular intervals, in the flanges 3 of the bobbin. The shape of the openings as well as the shape of the bobbin are not limited by this embodiment. So the bobbin can instead of a round z. B. also have a square cross-section with lattice-shaped openings or be adapted to a different winding profile if it appears necessary for the construction of a transducer or the like in the overall arrangement.
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES27322A DE1112578B (en) | 1952-01-30 | 1952-02-22 | Method for producing an electrical winding arrangement with a casing from a castable, thermosetting plastic compound |
CH316009D CH316009A (en) | 1952-02-22 | 1953-01-30 | Coil with a cast resin coil body consisting of a tubular body and flanges, in particular for transducers or the like |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES26986A DE1108324B (en) | 1952-01-30 | 1952-01-30 | Method for producing an electrical winding arrangement with a casing from a castable, thermosetting plastic compound and winding arrangement produced according to this method |
DES27322A DE1112578B (en) | 1952-01-30 | 1952-02-22 | Method for producing an electrical winding arrangement with a casing from a castable, thermosetting plastic compound |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1112578B true DE1112578B (en) | 1961-08-10 |
Family
ID=33300784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES27322A Pending DE1112578B (en) | 1952-01-30 | 1952-02-22 | Method for producing an electrical winding arrangement with a casing from a castable, thermosetting plastic compound |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1112578B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1239017B (en) * | 1963-12-07 | 1967-04-20 | Kirsch Bernhard Fa | Bobbin |
DE1241914B (en) * | 1963-09-04 | 1967-06-08 | Licentia Gmbh | Manufacture of cast resin insulated electrical coils for high operating voltages |
FR2447632A1 (en) * | 1979-01-25 | 1980-08-22 | Ducellier & Cie | ROTOR FOR ROTATING ELECTRIC MACHINE |
WO2013143737A1 (en) * | 2012-03-29 | 2013-10-03 | Robert Bosch Gmbh | Ignition coil with improved impregnation properties |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749489C (en) * | 1942-03-21 | 1944-11-23 | Process for the production of a winding of a transformer embedded in thermoplastic material | |
CH257219A (en) * | 1946-10-26 | 1948-09-30 | Moser Glaser & Co Ag | Method for filling the cavities of transformers, and transformers whose cavities have been filled by this method. |
CH261736A (en) * | 1947-03-07 | 1949-05-31 | Moser Glaser & Co Ag | Method of manufacturing a dry-type transformer. |
CH262655A (en) * | 1947-05-12 | 1949-07-15 | Moser Glaser & Co Ag | Dry current transformer. |
CH268951A (en) * | 1948-10-05 | 1950-06-15 | Oerlikon Maschf | Current transformer with windings embedded in a solid insulating compound. |
CH269924A (en) * | 1946-08-28 | 1950-07-31 | Moser Glaser & Co Ag | Process for the impregnation of electrical coils and electrical coil impregnated according to this process. |
-
1952
- 1952-02-22 DE DES27322A patent/DE1112578B/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE749489C (en) * | 1942-03-21 | 1944-11-23 | Process for the production of a winding of a transformer embedded in thermoplastic material | |
CH269924A (en) * | 1946-08-28 | 1950-07-31 | Moser Glaser & Co Ag | Process for the impregnation of electrical coils and electrical coil impregnated according to this process. |
CH257219A (en) * | 1946-10-26 | 1948-09-30 | Moser Glaser & Co Ag | Method for filling the cavities of transformers, and transformers whose cavities have been filled by this method. |
CH261736A (en) * | 1947-03-07 | 1949-05-31 | Moser Glaser & Co Ag | Method of manufacturing a dry-type transformer. |
CH262655A (en) * | 1947-05-12 | 1949-07-15 | Moser Glaser & Co Ag | Dry current transformer. |
CH268951A (en) * | 1948-10-05 | 1950-06-15 | Oerlikon Maschf | Current transformer with windings embedded in a solid insulating compound. |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1241914B (en) * | 1963-09-04 | 1967-06-08 | Licentia Gmbh | Manufacture of cast resin insulated electrical coils for high operating voltages |
DE1239017B (en) * | 1963-12-07 | 1967-04-20 | Kirsch Bernhard Fa | Bobbin |
FR2447632A1 (en) * | 1979-01-25 | 1980-08-22 | Ducellier & Cie | ROTOR FOR ROTATING ELECTRIC MACHINE |
EP0015166A1 (en) * | 1979-01-25 | 1980-09-03 | DUCELLIER & Cie | Rotor for rotating electrical machine |
WO2013143737A1 (en) * | 2012-03-29 | 2013-10-03 | Robert Bosch Gmbh | Ignition coil with improved impregnation properties |
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