DE1206994B - Method for insulating windings of electrical machines with narrow, closed slots, preferably medium-frequency machines - Google Patents

Method for insulating windings of electrical machines with narrow, closed slots, preferably medium-frequency machines

Info

Publication number
DE1206994B
DE1206994B DEL43538A DEL0043538A DE1206994B DE 1206994 B DE1206994 B DE 1206994B DE L43538 A DEL43538 A DE L43538A DE L0043538 A DEL0043538 A DE L0043538A DE 1206994 B DE1206994 B DE 1206994B
Authority
DE
Germany
Prior art keywords
insulating
hoses
machines
narrow
grooves
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
Application number
DEL43538A
Other languages
German (de)
Inventor
Heinrich Van Linn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL43538A priority Critical patent/DE1206994B/en
Publication of DE1206994B publication Critical patent/DE1206994B/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/10Applying solid insulation to windings, stators or rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Description

Verfahren zum Isolieren von Wicklungen elektrischer Maschinen mit engen, geschlossenen Nuten, vorzugsweise Mittelfrequenzmaschinen Um Wicklungsleiter in engen Nuten elektrischer Maschinen zu isolieren, wird häufig ein Verfahren angewandt, bei dem in die Nuten des Blechpaketes elastische Isolierstoffrohre eingelegt werden, die sich der Form der Nut anpassen und durch die man dann anschließend die Wicklungsleiter, beispielsweise in Formeiner profilierten Litze, einzieht.Method for insulating windings using electrical machines narrow, closed grooves, preferably medium frequency machines around winding conductors A method is often used to insulate in narrow slots in electrical machines in which elastic insulating tubes are inserted into the grooves of the laminated core, which adapt to the shape of the groove and through which you can then subsequently adjust the winding conductor, for example in the form of a profiled strand.

Bei kleinen Nuten, wie sie insbesondere bei Mittelfrequenzmaschinen vorkommen, ist es nur noch sehr schwer möglich, diese Schläuche in die Nuten einzuziehen. Diese Schwierigkeiten werden noch verstärkt, wenn die Nutwände des geschichteten Blechpaketes nicht ganz eben sind.With small grooves, such as those in medium-frequency machines in particular occur, it is very difficult to pull these hoses into the grooves. These difficulties are exacerbated when the groove walls are layered The laminated core are not completely flat.

Aufgabe der Erfindung ist es, einen Weg zu finden, der es ermöglicht, trotz dieser Schwierigkeiten die Isolierstoffschläuche in den Nuten des Blechpaketes einzuziehen.The object of the invention is to find a way that makes it possible to despite these difficulties, the insulating tubes in the grooves of the laminated core to move in.

Die Erfindung löst diese Aufgabe durch ein Verfahren zum Isolieren von Wicklungen elektrischer Maschinen mit engen, mindestens im wesentlichen geschlossenen Isolierstoffschläuchen, die vor dem Einziehen der Wicklung in die Nuten eingezogen werden, das dadurch gekennzeichnet ist, daß die Isolierstoffschläuche vor dem Einziehen in die Nuten evakuiert werden.The invention solves this problem by means of a method for insulating of windings of electrical machines with tight, at least substantially closed Insulating tubes that are drawn into the grooves before the winding is drawn in be, which is characterized in that the insulating hoses before pulling in evacuated into the grooves.

Auf diese Weise wird in vielen Fällen das Einbringen der Isolierstoffschläuche in die Nuten erst ermöglicht. Beim Evakuieren wird der Durchmesser des Schlauches kleiner, so daß ein Spiel entsteht, das groß genug ist, um den Schlauch ohne Schwierigkeiten in die Nut einlegen zu können. Nachdem das geschehen ist, wird wieder Luft in den Schlauch eingelassen, so daß er sich spreizt und sich nunmehr praktisch spielfrei und fest an die Nutenwandungen anlegt.In many cases, this is how the insulating material hoses are inserted in the grooves. When evacuating, the diameter of the hose smaller, so that there is a clearance that is large enough to accommodate the hose without difficulty to be able to insert into the groove. After that is done, the air will return to the air Hose let in so that it spreads and is now practically free of play and is firmly attached to the walls of the groove.

F i g. 1 zeigt die Stirnseite des Ständerblechpaketes einer Mittelfrequenzmaschine; F i g. 2 zeigt einen Längsschnitt durch das Ständerblechpaket vor dem Einlegen des Isolierstoffschlauches; F i g. 3 zeigt einen Längsschnitt durch das Ständerblechpaket nach dem Einlegen des Isolierstoffschlauches; F i g. 4 zeigt einen zum Evakuieren präparierten Isolierstoffschlauch.F i g. 1 shows the end face of the stator core of a medium-frequency machine; F i g. 2 shows a longitudinal section through the stator core prior to the insertion of the Insulating hose; F i g. 3 shows a longitudinal section through the stator core after inserting the insulating tube; F i g. 4 shows one for evacuation prepared insulating tube.

Der in F i g. 4 dargestellte Isolierstoffschlauch 4 ist an einem Ende mit einem Pfropfen 5 abgeschlossen. An dem offenen Ende des Isolierstoffschlauches 4 wird nun eine Vakuumpumpe angeschlossen, die den Schlauch evakuiert. Der evakuierte Schlauch 4 wird nun mit einem Draht 6, dessen eines Ende zu einem Haken umgebogen ist, in die Nut 2 des mit Endplatten 3 versehenen Ständerblechpaketes 1 eingezogen. Anschließend wird das mit dem Pfropfen 5 verschlossene Ende des Schlauches abgeschnitten, so daß er sich wieder auf seine normalen Abmessungen ausdehnt und sich eng an die Wandungen der Nut 2 anlegt, wie es in F i g. 3 dargestellt ist. Nunmehr können in üblicher Weise die Wicklungsleiter in die Schläuche 4 eingezogen werden.The in F i g. The insulating tube 4 shown in FIG. 4 is closed at one end with a plug 5. A vacuum pump is now connected to the open end of the insulating hose 4, which evacuates the hose. The evacuated hose 4 is now drawn into the groove 2 of the stator core 1 provided with end plates 3 with a wire 6, one end of which is bent into a hook. Then the end of the hose closed with the plug 5 is cut off so that it expands again to its normal dimensions and rests closely against the walls of the groove 2 , as shown in FIG. 3 is shown. The winding conductors can now be drawn into the tubes 4 in the usual manner.

Claims (3)

Patentansprüche: 1. Verfahren zum Isolieren von Wicklungen elektrischer Maschinen mit engen, mindestens im wesentlichen geschlossenen Nuten, vorzugsweise Mittelfrequenzgeneratoren, mittels Isolierstoffschläuchen, die vor dem Einziehen der Wicklung in die Nuten eingezogen werden, d a d u r c h g e -k e n n z e i c h n e t, daß die Isolierstoffschläuche vor dem Einziehen in die Nut evakuiert werden. Claims: 1. Method for insulating windings electrical Machines with narrow, at least substantially closed grooves, preferably Medium frequency generators, by means of insulating hoses, which are before being drawn in of the winding are drawn into the grooves, d a d u r c h g e -k e n n n z e i c It does not mean that the insulating material hoses are evacuated before they are pulled into the groove. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die - Isolierstoffschläuche an einem Ende mit einem Pfropfen verschlossen werden, während an dem anderen Ende der Schläuche eine Vakuumpumpe angeschlossen ist, die die Schläuche evakuiert, die nunmehr mit einem Draht in die Nut eingelegt werden. 2. The method according to claim 1, characterized in that the - insulating hoses be plugged at one end, while at the other end the hoses are connected to a vacuum pump that evacuates the hoses that can now be inserted into the groove with a wire. 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß nach dem Einlegen der Isolierstoffschläuche in die Nuten das jeweilige Ende mit dem Pfropfen abgeschnitten wird, so daß die Wicklungsleiter in die Schläuche eingezogen werden können. In Betracht gezogene Druckschriften: Deutsche Auslegeschrift S 42384 VIII b/21d1 (bekanntgemacht am 25. 10. 1956); USA.-Patentschrift Nr. 3 028 266; Zeitschrift »Elektrie«, H. 6, 1962, S. 41.3. The method according to claim 1 and 2, characterized in that after inserting the insulating hoses into the grooves, the respective end is cut off with the plug so that the winding conductors can be drawn into the hoses. Considered publications: German Auslegeschrift S 42384 VIII b / 21d1 (published on October 25, 1956); U.S. Patent No. 3,028,266; "Elektrie" magazine, issue 6, 1962, p. 41.
DEL43538A 1962-11-26 1962-11-26 Method for insulating windings of electrical machines with narrow, closed slots, preferably medium-frequency machines Pending DE1206994B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL43538A DE1206994B (en) 1962-11-26 1962-11-26 Method for insulating windings of electrical machines with narrow, closed slots, preferably medium-frequency machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL43538A DE1206994B (en) 1962-11-26 1962-11-26 Method for insulating windings of electrical machines with narrow, closed slots, preferably medium-frequency machines

Publications (1)

Publication Number Publication Date
DE1206994B true DE1206994B (en) 1965-12-16

Family

ID=7270323

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL43538A Pending DE1206994B (en) 1962-11-26 1962-11-26 Method for insulating windings of electrical machines with narrow, closed slots, preferably medium-frequency machines

Country Status (1)

Country Link
DE (1) DE1206994B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028266A (en) * 1957-11-04 1962-04-03 Everett P Larsh Method and apparatus for impregnating motor windings and motor stator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028266A (en) * 1957-11-04 1962-04-03 Everett P Larsh Method and apparatus for impregnating motor windings and motor stator

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