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CH391071A - Laminated stator bodies for electrical machines, in particular turbo generators - Google Patents

Laminated stator bodies for electrical machines, in particular turbo generators

Info

Publication number
CH391071A
CH391071A CH251562A CH251562A CH391071A CH 391071 A CH391071 A CH 391071A CH 251562 A CH251562 A CH 251562A CH 251562 A CH251562 A CH 251562A CH 391071 A CH391071 A CH 391071A
Authority
CH
Switzerland
Prior art keywords
sheet metal
stator
laminated
laminated stator
electrical machines
Prior art date
Application number
CH251562A
Other languages
German (de)
Inventor
Koehli Otto
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH251562A priority Critical patent/CH391071A/en
Publication of CH391071A publication Critical patent/CH391071A/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Description

  

      Ständerblechkörper    für elektrische Maschinen, insbesondere Turbogeneratoren    Im Zusammenhang mit der Fabrikation von elek  trischen Maschinen, insbesondere grossen Turbogene  ratoren, ist vor allem die Herstellung des Ständer  blechkörpers eine zeitraubende Arbeit, da nach den  herkömmlichen Methoden die     Blecherei    ausschliess  lich als Handarbeit durchgeführt wird. Bis jetzt  bestehen diese Blechkörper meistens aus durch am  Umfang gegeneinander versetzte     Einzelblechlagen,     wobei die einzelnen Blechsegmente von Hand in das  Maschinengehäuse eingebracht werden müssen.  



  Um eine wirtschaftliche Bauweise des Ständer  blechkörpers zu erreichen, ist es bereits vorgeschla  gen, die Blechlamellen vor dem Einbau in das       Ständergehäuse    zu geschlossenen     Blechpaketringen     mit begrenzter     Axiallänge    zusammenzusetzen und  diese vorfabrizierten     Blechpaketringe    in das     Ständer-          gebäuse    einzusetzen.

   Mit dieser Bauweise wird ledig  lich bezüglich der Festigkeit des     Ständerblechkörpers     ein gewisser Vorteil     erreicht,    aber die Herstellung  der     Blechpaketringe    muss infolge der Versetzung  der einzelnen Blechlagen in der Umfangsrichtung des  Ständers von Hand erfolgen, so dass der Zeitaufwand  für das Blechen des     Ständers    nicht wesentlich ver  mindert wird;.  



  Der Zweck der Erfindung ist nunmehr, einen       Ständerblechkörper    für elektrische Maschinen, ins  besondere Turbogeneratoren, zu schaffen, der bezüg  lich seiner Herstellungszeit einen sehr wesentlichen  Fortschritt mit sich bringt und von arbeitstechni  schem Standpunkt aus betrachtet ausserordentlich  vorteilhaft ist.  



  Die     Erfindung    geht von der Erkenntnis aus, dass  die bis     jetzt    als erforderlich betrachtete gegenseitige  Versetzung der Blechlagen ohne weiteres verlassen  werden kann. Gemäss der Erfindung ist daher der       Ständerblechkörper    dadurch     gekennzeichnet,    dass die  ser aus zu     einem        Hohlzylinder    zusammengebauten    Blechsäulen     segmentförmigen        Querschnittes    besteht,  die eine der     Axiällänge    des Ständers entsprechende  Länge aufweisen und aus geschichteten, miteinander  verbundenen Blechsegmenten gebildet sind.  



  Ferner bezieht sich die Erfindung auf ein Ver  fahren zur Herstellung des erfindungsgemässen     Stän-          derblechkörpers.    Gemäss     diesem        Verfahren    werden  die den     Ständerblechkörper    bildenden     Blechsegmente     zu einzelnen Blechsäulen geschichtet und mit einem  Bindemittel zusammengehalten, worauf die vorfabri  zierten Blechsäulen in das     Ständergehäuse    zu     einem          Hohlzylinder    zusammengebaut und mechanisch     unter     Druck festgehalten werden.  



  Anhand der Zeichnung ist .ein Ausführungsbei  spiel der     Erfindung    näher erläutert, und zwar zeigt  die Figur     einen        Ständerblechkörper    in perspektivi  scher Darstellung.  



  Der Blechkörper des Ständers besteht im vor  liegenden Falle aus acht Blechsäulen 1, die eine  der     Axiallänge    des Ständereisens entsprechende  Länge aufweisen und zu einem     Hohlzylinder    zusam  mengebaut werden. Diese Blechsäulen 1 werden aus  Blechsegmenten vor dem Einbau hergestellt. Die  einzelnen Blechsegmente werden in einer     Paketier-          maschine    maschinell geschichtet und     unter    Anwen  dung eines     Klebelackes    bei entsprechendem Druck  und nachträglichem Aushärten zu kompakten Säulen  geformt. Für den     ,Zusammenbau    dieser vorfabrizier  ten Blechsäulen sind     Zentrierkeile    2 vorgesehen.

    Durch die Zugstangen 3, die mit je einem End  ring 4 fest verbunden sind, und die Schrumpfringe 5  wird der mittels der Blechsäulen 1 gebildete Hoch  zylinder mit dem erforderlichen Druck verspannt.  



  Der beschriebene     Ständerblechkörper    wird nach  seiner     Fertigstellung    in das nicht dargestellte Ge  häuse des Ständers eingebaut. Die einzelnen Blech  körper 1 können auch direkt in das     Ständergehäuse         eingebaut und durch diesen unter Druck gehalten  werden, so dass in diesem Falle die Schrumpfringe 5  und Zugstangen 3     wegfallen.    Ferner ist es auch  zweckmässig, bei sehr grossen Maschinen mit ent  sprechend langen     Ständerblechkörpern    die Blech  säulen 1 radial zu unterteilen, so dass jede Blechsäule  aus zwei oder mehr Teilsäulen besteht. Falls er  wünscht, kann beim maschinellen Schichten der Säu  lenbleche ein Schrägblechen erfolgen.  



  Mit dem beschriebenen     Ständerblechkörper,    der       vorwiegend    auf maschinelle Weise hergestellt werden  kann, ergibt sich gegenüber den bisherigen Ständer  blechkörpern eine     sehr    grosse Verkürzung der Her  stellungszeit mit einer entsprechenden Verminderung  der Herstellungskosten.

   Ausserdem ergibt sich noch  der sehr wesentliche     Vorteil,    dass bei grossen Turbo  generatoren, wo     mit    der zunehmenden Grösse das  Transportproblem immer schwieriger wird, die Mög  lichkeit besteht, das leere     Ständergehäuse    und das  vorfabrizierte     Ständerblechpaket    getrennt zum Auf-         stellungsort    zu transportieren und erst dort zusam  menzubauen.



      Laminated stator bodies for electrical machines, especially turbo generators In connection with the manufacture of electrical machines, especially large turbo generators, the manufacture of the laminated stator body is a time-consuming job, since sheet metal processing is done exclusively by hand using conventional methods. Until now, these sheet metal bodies have mostly consisted of individual sheet metal layers offset from one another on the circumference, with the individual sheet metal segments having to be inserted into the machine housing by hand.



  In order to achieve an economical construction of the stator sheet metal body, it has already been proposed to assemble the sheet metal lamellas into closed laminated core rings with a limited axial length before installing them in the stator housing and to use these prefabricated sheet metal core rings in the stator housing.

   With this construction, a certain advantage is achieved with regard to the strength of the laminated stator body, but the production of the laminated core rings has to be done by hand due to the offset of the individual sheet metal layers in the circumferential direction of the stator, so that the time required for sheet metal of the stator is not significantly reduced becomes;.



  The purpose of the invention is now to create a laminated stator body for electrical machines, in particular turbo-generators, which brings with it a very substantial advance in terms of its manufacturing time and which is extremely advantageous from a technical point of view.



  The invention is based on the knowledge that the mutual offset of the sheet metal layers, which has been considered necessary up to now, can be left without further ado. According to the invention, therefore, the laminated stator body is characterized in that it consists of segmented sheet metal columns assembled to form a hollow cylinder, which have a length corresponding to the axial length of the stator and are formed from layered, interconnected sheet metal segments.



  The invention also relates to a method for producing the laminated stator body according to the invention. According to this method, the sheet metal segments forming the stator core are layered into individual sheet metal columns and held together with a binding agent, whereupon the pre-fabricated sheet metal columns are assembled in the stator housing to form a hollow cylinder and held mechanically under pressure.



  Based on the drawing .ein Ausführungsbei game of the invention is explained in more detail, namely the figure shows a laminated stator body in a perspective view.



  The sheet metal body of the stator consists in the present case of eight sheet metal columns 1, which have a length corresponding to the axial length of the stator iron and are built together to form a hollow cylinder. These sheet metal columns 1 are made from sheet metal segments before installation. The individual sheet metal segments are layered by machine in a stacking machine and formed into compact columns using an adhesive varnish with the appropriate pressure and subsequent curing. Centering wedges 2 are provided for the assembly of these pre-fabricated sheet metal columns.

    Through the tie rods 3, which are each firmly connected to an end ring 4, and the shrink rings 5, the high cylinder formed by means of the sheet metal columns 1 is braced with the required pressure.



  The laminated stator body described is installed after its completion in the housing of the stand, not shown Ge. The individual sheet metal bodies 1 can also be installed directly in the stator housing and kept under pressure by this, so that in this case the shrink rings 5 and tie rods 3 are omitted. Furthermore, it is also useful for very large machines with correspondingly long sheet metal stator bodies to divide the sheet metal columns 1 radially so that each sheet metal column consists of two or more partial columns. If he wishes, inclined sheets can be used for machine layering of the column sheets.



  With the laminated stator body described, which can be mainly produced by machine, there is a very large reduction in the production time compared to the previous stator laminated bodies with a corresponding reduction in production costs.

   There is also the very important advantage that with large turbo generators, where the transport problem becomes more and more difficult with increasing size, it is possible to transport the empty stator housing and the prefabricated stator core separately to the installation site and only assemble them there .

 

Claims (1)

PATENTANSPRÜCHE 1. Ständerblechkörper für elektrische Maschinen, insbesondere Turbogeneratoren, dadurch gekenn zeichnet, dass der Blechkörper aus zu einem Hohl zylinder zusammengebauten Blechsäulen segmentför- migen Querschnittes besteht, die eine der Axiallänge des Ständers entsprechende Länge aufweisen und aus geschichteten miteinander verbundenen Blechsegmen ten gebildet sind. 11. PATENT CLAIMS 1. Laminated stator bodies for electrical machines, in particular turbo-generators, characterized in that the laminated body consists of segmented sheet metal columns assembled to form a hollow cylinder, which have a length corresponding to the axial length of the stator and are formed from layered, interconnected sheet metal segments. 11. Verfahren zur Herstellung eines Ständerblech- körpers nach Patentanspruch 1, dadurch gekenn zeichnet, dass die den Ständerblechkörper bildenden Blechsegmente zu einzelnen Blechsäulen geschichtet und mit einem Bindemittel zusammengehalten wer den, worauf diese vorfabrizierten Blechsäulen in das Ständergehäuse zu einem Hohlzylinder zusammenge baut und mechanisch unter Druck zusammengehal ten werden. Method for producing a laminated stator body according to claim 1, characterized in that the sheet metal segments forming the laminated stator body are layered to form individual sheet metal columns and held together with a binding agent, whereupon these prefabricated sheet metal columns are assembled in the stator housing to form a hollow cylinder and are mechanically held together under pressure will be.
CH251562A 1962-03-01 1962-03-01 Laminated stator bodies for electrical machines, in particular turbo generators CH391071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH251562A CH391071A (en) 1962-03-01 1962-03-01 Laminated stator bodies for electrical machines, in particular turbo generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH251562A CH391071A (en) 1962-03-01 1962-03-01 Laminated stator bodies for electrical machines, in particular turbo generators

Publications (1)

Publication Number Publication Date
CH391071A true CH391071A (en) 1965-04-30

Family

ID=4235512

Family Applications (1)

Application Number Title Priority Date Filing Date
CH251562A CH391071A (en) 1962-03-01 1962-03-01 Laminated stator bodies for electrical machines, in particular turbo generators

Country Status (1)

Country Link
CH (1) CH391071A (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361767A1 (en) * 1976-08-11 1978-03-10 Gen Electric PROCESS FOR MAKING A STATORIC CORE AND STATORIC CORE THUS OBTAINED
WO1994009546A1 (en) * 1992-10-09 1994-04-28 Wolfgang Hill Process for producing a multi-phase machine with non-salient poles
WO1999019969A1 (en) * 1997-10-13 1999-04-22 Abb Ab A stator and a method for manufacturing a stator
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
WO2002071575A3 (en) * 2001-03-02 2002-12-12 Matsushita Electric Industrial Co Ltd Motor with divided stator having bonded laminations
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
US6867674B1 (en) 1997-11-28 2005-03-15 Asea Brown Boveri Ab Transformer
US6873080B1 (en) 1997-09-30 2005-03-29 Abb Ab Synchronous compensator plant
US6885273B2 (en) 2000-03-30 2005-04-26 Abb Ab Induction devices with distributed air gaps
US6891303B2 (en) 1996-05-29 2005-05-10 Abb Ab High voltage AC machine winding with grounded neutral circuit
US6970063B1 (en) 1997-02-03 2005-11-29 Abb Ab Power transformer/inductor
US6972505B1 (en) 1996-05-29 2005-12-06 Abb Rotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same
US6995646B1 (en) 1997-02-03 2006-02-07 Abb Ab Transformer with voltage regulating means
US7019429B1 (en) 1997-11-27 2006-03-28 Asea Brown Boveri Ab Method of applying a tube member in a stator slot in a rotating electrical machine
US7045704B2 (en) 2000-04-28 2006-05-16 Abb Ab Stationary induction machine and a cable therefor
US7046492B2 (en) 1997-02-03 2006-05-16 Abb Ab Power transformer/inductor
US7061133B1 (en) 1997-11-28 2006-06-13 Abb Ab Wind power plant
US7141908B2 (en) 2000-03-01 2006-11-28 Abb Ab Rotating electrical machine

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361767A1 (en) * 1976-08-11 1978-03-10 Gen Electric PROCESS FOR MAKING A STATORIC CORE AND STATORIC CORE THUS OBTAINED
WO1994009546A1 (en) * 1992-10-09 1994-04-28 Wolfgang Hill Process for producing a multi-phase machine with non-salient poles
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
US6822363B2 (en) 1996-05-29 2004-11-23 Abb Ab Electromagnetic device
US6940380B1 (en) 1996-05-29 2005-09-06 Abb Ab Transformer/reactor
US6894416B1 (en) 1996-05-29 2005-05-17 Abb Ab Hydro-generator 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
US6891303B2 (en) 1996-05-29 2005-05-10 Abb Ab High voltage AC machine winding with grounded neutral circuit
US6417456B1 (en) 1996-05-29 2002-07-09 Abb Ab Insulated conductor for high-voltage windings and a method of manufacturing the same
US6972505B1 (en) 1996-05-29 2005-12-06 Abb Rotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same
US6936947B1 (en) 1996-05-29 2005-08-30 Abb Ab Turbo generator plant with a high voltage electric generator
US6919664B2 (en) 1996-05-29 2005-07-19 Abb Ab High voltage plants with electric motors
US6906447B2 (en) 1996-05-29 2005-06-14 Abb Ab Rotating asynchronous converter and a generator device
US6279850B1 (en) 1996-11-04 2001-08-28 Abb Ab Cable forerunner
US6396187B1 (en) 1996-11-04 2002-05-28 Asea Brown Boveri Ab Laminated magnetic core for electric machines
US6369470B1 (en) 1996-11-04 2002-04-09 Abb Ab Axial cooling of a rotor
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
US6429563B1 (en) 1997-02-03 2002-08-06 Abb Ab Mounting device for rotating electric machines
US6995646B1 (en) 1997-02-03 2006-02-07 Abb Ab Transformer with voltage regulating means
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
US6646363B2 (en) 1997-02-03 2003-11-11 Abb Ab Rotating electric machine with coil supports
US7046492B2 (en) 1997-02-03 2006-05-16 Abb Ab Power transformer/inductor
US6970063B1 (en) 1997-02-03 2005-11-29 Abb Ab Power transformer/inductor
US6357688B1 (en) 1997-02-03 2002-03-19 Abb Ab Coiling device
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
US6873080B1 (en) 1997-09-30 2005-03-29 Abb Ab Synchronous compensator plant
WO1999019969A1 (en) * 1997-10-13 1999-04-22 Abb Ab A stator and a method for manufacturing a stator
US7019429B1 (en) 1997-11-27 2006-03-28 Asea Brown Boveri Ab Method of applying a tube member in a stator slot in a rotating electrical machine
US6867674B1 (en) 1997-11-28 2005-03-15 Asea Brown Boveri Ab Transformer
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
US7061133B1 (en) 1997-11-28 2006-06-13 Abb Ab Wind power plant
US6801421B1 (en) 1998-09-29 2004-10-05 Abb Ab Switchable flux control for high power static electromagnetic devices
US7141908B2 (en) 2000-03-01 2006-11-28 Abb Ab Rotating electrical machine
US6885273B2 (en) 2000-03-30 2005-04-26 Abb Ab Induction devices with distributed air gaps
US7045704B2 (en) 2000-04-28 2006-05-16 Abb Ab Stationary induction machine and a cable therefor
US7026741B2 (en) 2001-03-02 2006-04-11 Matsushita Electric Industrial Co., Ltd. Motor with stator formed by assembling divided stator-members into an annular shape, and compressor incorporating the same motor
US7126248B2 (en) 2001-03-02 2006-10-24 Matsushita Electric Industrial Co., Ltd. Motor with stator formed by assembling divided stator-members into an annular shape, and compressor incorporating the same motor
WO2002071575A3 (en) * 2001-03-02 2002-12-12 Matsushita Electric Industrial Co Ltd Motor with divided stator having bonded laminations

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