DE523047C - Process for the production of slot wedges with iron sheets layered transversely to the longitudinal direction of the wedge for electrical machines - Google Patents

Process for the production of slot wedges with iron sheets layered transversely to the longitudinal direction of the wedge for electrical machines

Info

Publication number
DE523047C
DE523047C DEA57316D DEA0057316D DE523047C DE 523047 C DE523047 C DE 523047C DE A57316 D DEA57316 D DE A57316D DE A0057316 D DEA0057316 D DE A0057316D DE 523047 C DE523047 C DE 523047C
Authority
DE
Germany
Prior art keywords
wedge
wedges
production
longitudinal direction
electrical machines
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
Application number
DEA57316D
Other languages
German (de)
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.)
Brown Boveir & Cie AG
Original Assignee
Brown Boveir & Cie AG
Publication date
Priority to DEA57316D priority Critical patent/DE523047C/en
Application granted granted Critical
Publication of DE523047C publication Critical patent/DE523047C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/48Fastening of windings on the stator or rotor structure in slots
    • H02K3/487Slot-closing devices
    • H02K3/493Slot-closing devices magnetic

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Description

Nutenkeile für elektrische Maschinen werden bisher in der Weise hergestellt, daß trapezförmig geschnittene Bleche geschichtet miteinander durch gegebenenfalls nicht ma-S gnetisierbare Stifte vernietet und darauf mit einer Isolierschicht umwickelt oder umpreßt werden. Diese Herstellungsart ist umständlich und teuer.Slot wedges for electrical machines have so far been produced in such a way that trapezoidal cut sheets layered with one another by possibly not ma-S Gnetisable pins riveted and then wrapped with an insulating layer or overmolded will. This type of production is cumbersome and expensive.

Es ist ferner vorgeschlagen worden, Nutenkeile dadurch herzustellen, daß Bleche in einer der Länge des Keiles entsprechenden Anzahl geschichtet, in Reihen nebeneinander gruppiert und darauf mit Isoliermaterial umpreßt werden. Die einzelnen Keile werden dann durch Aufschneiden der Isolationsschicht zwischen den Blechen hergestellt. Diese Art der· Herstellung der Nutenkeile bietet fabrikationstechnische Schwierigkeiten, die die praktische Ausführung unmöglich machen. Die an den Flanken der Keile erforderliche Isolierschicht ist sehr dünn. Es ist nun sehr schwierig, die geschichteten Bleche in der richtigen Entfernung nebeneinander während der Umpressung mit Isoliermaterial so gleichmäßig zu distanzieren, daß bei dem nachfolgenden Aufschneiden der trennenden Isolierschicht diese nicht zerstört wird. Geringe Verschiebungen der geschichteten Bleche zueinander erschweren die Fabri-.It has also been proposed to produce slot wedges in that sheets in layered in a number corresponding to the length of the wedge, in rows next to each other are grouped and then pressed around with insulating material. The individual wedges are then made by cutting open the insulation layer between the sheets. This type of · production of slot wedges offers manufacturing difficulties that make practical implementation impossible do. The insulating layer required on the flanks of the wedges is very thin. It is now very difficult to juxtapose the layered sheets at the correct distance to be so evenly spaced during the encapsulation with insulating material that when the separating insulating layer is subsequently cut open, it is not destroyed will. Slight displacements of the layered sheets to one another make the factory more difficult.

kation, geben viel Ausschuß und Nachisolationen. cation, give a lot of waste and post-isolation.

Gegenstand der Erfindung ist nun ein Verfahren zur Herstellung von Nutenkeilen, bei dem diese Nachteile dadurch beseitigt werden, daß aus mit Isolierstoff umpreßten und in einer der Länge des Keiles entsprechenden Anzahl geschichteten Blechstreifen gebildeten Stangen trapezförmige Keile durch zwei unter einem Winkel die Bleche quer teilende Schnitte ohne Abfall geschnitten werden. Die Blechstreifen werden zweckmäßig durch eine Zunderschicht, Papier oder Lack isoliert.The invention now relates to a method for producing slot wedges which these disadvantages are eliminated in that from encapsulated with insulating material and in formed a number of layered sheet metal strips corresponding to the length of the wedge Rods of trapezoidal wedges through two cuts that cross the sheets at an angle can be cut without waste. The metal strips are expediently covered by a layer of scale, Paper or paint isolated.

In der Zeichnung ist in Abb. 1 ein gemäß dem Verfahren hergestellter Stab α dargestellt, der aus den nebeneinandergeschichteten Blechstreifen b besteht, die mit der Isolierschicht c umgeben sind. Die Isolierschicht kann eine Umpressung mit Hartpapier (Bakelit) oder mit einem gleichwertigen Isolierstoff bekannter Art sein. Um einen besseren Zusammenhalt der Blechlamellen zu sichern, ist es zweckmäßig, die Blechstreifen an beiden Längskanten mit Aussparungen d zu versehen, die beim Aneinanderreihen der Blechstreifen Nuten bilden und mit dem Preßmaterial ausgefüllt werden, wie aus Abb. 2 ersichtlich, die einen Querschnitt durch einen fertigen Keil darstellt. Die Anzahl und die Form der Aussparungen ist ganz beliebig. Aus einem gemäß dem Verfahren hergestellten Stab werden durch zwei unter einem Winkel verlaufende Querschnitte trapezförmige Keile ohne Abfall herausgeschnitten, wie in Abb. ι dargestellt.In the drawing, in Fig. 1, a rod α produced according to the method is shown, which consists of the sheet-metal strips b stacked next to one another and surrounded by the insulating layer c. The insulating layer can be pressed with hard paper (Bakelite) or with an equivalent insulating material of a known type. In order to ensure better cohesion of the sheet metal lamellas, it is useful to provide the sheet metal strips on both longitudinal edges with recesses d , which form grooves when the sheet metal strips are lined up and are filled with the pressing material, as shown in Fig. 2, which shows a cross section through a Represents finished wedge. The number and shape of the recesses is entirely arbitrary. Trapezoidal wedges without waste are cut out of a rod produced according to the method by means of two cross-sections running at an angle, as shown in Fig. Ι.

Claims (2)

65 Patentansprüche:65 claims: 1. Verfahren zur Herstellung von Nutenkeilen mit quer zur Längsrichtung des Keiles geschichteten Eisenblechen für elektrische Maschinen durch Abschneiden der Keile aus 'fertigen Stangen, die aus mit Isolierstoff umpreßten, in einer der Länge des Keiles entsprechenden Anzahl geschichteten Blechstreifen bestehen, dadurch gekennzeichnet, daß aus den Stan- gen trapezförmige Keile durch zwei unter einem Winkel die Bleche quer teilende Schnitte ohne Abfall geschnitten werden.1. Process for the production of slot wedges with transverse to the longitudinal direction of the Wedge layered iron sheets for electrical machines by cutting the wedges from 'finished bars that are made from encapsulated with insulating material, consist of sheet metal strips layered in a number corresponding to the length of the wedge, characterized in that the stand Trapezoidal wedges can be cut with two cuts that divide the sheets at an angle without waste. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Blechstreifen an beiden Längskanten mit Aussparungen versehen sind, die beim Schichten der Bleche Nuten ergeben, die mit dem Preßmaterial ausgefüllt werden.2. The method according to claim 1, characterized in that the sheet metal strips on both longitudinal edges are provided with recesses, which when layering the Sheet metal give grooves that are filled with the molding material. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEA57316D Process for the production of slot wedges with iron sheets layered transversely to the longitudinal direction of the wedge for electrical machines Expired DE523047C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA57316D DE523047C (en) Process for the production of slot wedges with iron sheets layered transversely to the longitudinal direction of the wedge for electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA57316D DE523047C (en) Process for the production of slot wedges with iron sheets layered transversely to the longitudinal direction of the wedge for electrical machines

Publications (1)

Publication Number Publication Date
DE523047C true DE523047C (en) 1931-04-18

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Family Applications (1)

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Country Status (1)

Country Link
DE (1) DE523047C (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761580A (en) * 1987-06-17 1988-08-02 Magnetek, Inc. Magnetic top wedge
US4827597A (en) * 1987-06-17 1989-05-09 Magnetek, Inc. Method of forming magnetic top wedge
US6261437B1 (en) 1996-11-04 2001-07-17 Asea Brown Boveri Ab Anode, process for anodizing, anodized wire and electric device comprising such anodized wire
US6279850B1 (en) 1996-11-04 2001-08-28 Abb Ab Cable forerunner
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6369470B1 (en) 1996-11-04 2002-04-09 Abb Ab Axial cooling of a rotor
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
US6831388B1 (en) 1996-05-29 2004-12-14 Abb Ab Synchronous compensator plant

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827597A (en) * 1987-06-17 1989-05-09 Magnetek, Inc. Method of forming magnetic top wedge
US4761580A (en) * 1987-06-17 1988-08-02 Magnetek, Inc. Magnetic top wedge
US6577487B2 (en) 1996-05-29 2003-06-10 Asea Brown Boveri Ab Reduction of harmonics in AC machines
US6831388B1 (en) 1996-05-29 2004-12-14 Abb Ab Synchronous compensator plant
US6376775B1 (en) 1996-05-29 2002-04-23 Abb Ab Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6261437B1 (en) 1996-11-04 2001-07-17 Asea Brown Boveri Ab Anode, process for anodizing, anodized wire and electric device comprising such anodized wire
US6279850B1 (en) 1996-11-04 2001-08-28 Abb Ab Cable forerunner
US6369470B1 (en) 1996-11-04 2002-04-09 Abb Ab Axial cooling of a rotor
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6439497B1 (en) 1997-02-03 2002-08-27 Abb Ab Method and device for mounting a winding
US6465979B1 (en) 1997-02-03 2002-10-15 Abb Ab Series compensation of electric alternating current machines
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6825585B1 (en) 1997-02-03 2004-11-30 Abb Ab End plate
US6828701B1 (en) 1997-02-03 2004-12-07 Asea Brown Boveri Ab Synchronous machine with power and voltage control
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
US6525504B1 (en) 1997-11-28 2003-02-25 Abb Ab Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine
US6525265B1 (en) 1997-11-28 2003-02-25 Asea Brown Boveri Ab High voltage power cable termination
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices

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