DE3433450A1 - Laminate stack for electrical machines having closed slots - Google Patents

Laminate stack for electrical machines having closed slots

Info

Publication number
DE3433450A1
DE3433450A1 DE19843433450 DE3433450A DE3433450A1 DE 3433450 A1 DE3433450 A1 DE 3433450A1 DE 19843433450 DE19843433450 DE 19843433450 DE 3433450 A DE3433450 A DE 3433450A DE 3433450 A1 DE3433450 A1 DE 3433450A1
Authority
DE
Germany
Prior art keywords
grooves
closed
machines according
laminated core
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.)
Withdrawn
Application number
DE19843433450
Other languages
German (de)
Inventor
Herbert 2940 Wilhelmshaven Borreck
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19843433450 priority Critical patent/DE3433450A1/en
Publication of DE3433450A1 publication Critical patent/DE3433450A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/26—Rotor cores with slots for windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Closed slots in the region of a winding strand result in a closed outlet surface being available to the lines of force which occur. In consequence, the flux of the lines of force over the path of the winding strand is largely homogenous. On the other hand, the closed surface over the slots of the winding strand conducts the magnetic flux which occurs to all the slots, even when the flux is inserted on one side, as is generally the case with rotating machines. The induced voltage response in the winding strand is improved as a result of the more uniform magnetic flux.

Description

beschreibung.description.

Titel: Blechpaket für elektrische Maschinen.Title: Laminated core for electrical machines.

Die Erfindung betrifft das Blechpaket für elektr. The invention relates to the laminated core for electr.

Maschinen zur Führung und Formung des magnetischen Flusses innerhalb und außerhalb (Luftspalt) des Eisenpaketes. Machines for guiding and shaping the magnetic flux within and outside (air gap) of the iron package.

Zweck: Der magnetische Pluß des Blechpaketes soll einmal an der Luftspaltseite möglichst gleichmäßig aus= treten und zum anderen Male durch eine gezielte Flußaufteilung innerhalb des Blechpaketes den magn. Purpose: The magnetic plus of the laminated core should be on the air gap side as evenly as possible = step and on the other hand through a targeted flow division within the laminated core the magn.

Fluß an allen vorhandenen Nuten des Blechpaketes vorbeiführen.Lead the flux past all of the existing grooves in the laminated core.

Stand der Technik: Im Elektromaschinenbau werden meistens offene- und halboffene Nuten verwendet.-Immer bezieht sich die Bezeichnung auf den magnetischen Zustand.-Geschlossene Nuten sind auch bekannt, siehe Bild 1.State of the art: In electrical engineering, mostly open- and half-open grooves used.-Always refers to the Label on the magnetic Condition.-Closed grooves are also known, see Figure 1.

Die Nuten können verschieden geformt und unterein= ander angeordnet sein,sie sind immer mit einem Spalt verbunden, siehe Bild 2 -.The grooves can be shaped differently and arranged one below the other they are always connected with a gap, see picture 2 -.

Zu einem Strang gehören : 1, 2, 3, 4, und mehr Nuten. In den Nuten sind die Leiter untergebracht.A strand includes: 1, 2, 3, 4, and more grooves. In the grooves the ladder is housed.

Kritik am Stand der Technik: Durch die offenen Nuten hat der magnetische Fluß an jeder Nutöffnung eine Unstetigkeitsstelle und der Luft spalt der Maschine muß im magnetischen Kreis größer angesetzt werden um den Karterschen Faktor von 1,o6 bis 1,60 Liegt ein Generator vor,so stört dieses dkn Spann= ungsverlauf der Ausgangsspannung.Criticism of the state of the art: Due to the open grooves, the magnetic Flow at each groove opening a point of discontinuity and the air gap of the machine must be in magnetic Circle can be set larger by the Karter's factor of 1.06 up to 1.60 If there is a generator, this dkn voltage curve disrupts the output voltage.

Aufgabe: Der Erfindung liegt die Aufgabe zugrunde den mag= netischen Fluß eines Stranges beim Brzeugen eines Magnetfeldes-Felderregerkurve- über die Stranbreite zu egalisieren und treten magnetische Feldlinien in das Blechpaket ein,diese anteilsmäßig an den einzelnen Nuten des Strangs vorbeizuführen.Task: The invention is based on the task of the magnetic Flow of a strand when generating a magnetic field-field exciter curve- over the Equalize strand width and occur magnetic field lines in insert the laminated core in order to proportionately feed it past the individual grooves of the strand.

Lösung: Diese Aufgaben werden erfindungsgemäß dadurch ge= löst,daß über den Nuten im Bereich eines Stranges eine geschlossene Eisenbrücke vorhanden ist,die als geschlossene Austrittsfläche für die Kraftlinien dient; und werden dem Bereich von außen Kraftlinien zugeführt,so verteilt das Eisen diese Kraftlinien, wenn auch unterschiedlichwzu den einzelnen Nuten des Stranges (die Verteilung der Kraftlinien ist eine Funktion der Querschnitte und der dazugehör= igen Längen) .Solution: According to the invention, these tasks are thereby achieved solves that A closed iron bridge is present over the grooves in the area of a strand is, which serves as a closed exit surface for the lines of force; and become the Area supplied from outside lines of force, so the iron distributes these lines of force, albeit different to the individual grooves of the strand (the distribution of the Lines of force is a function of the cross-sections and the associated lengths).

Damit der Kraftlinienfluß von der einen Stranseite zur anderen Strangseite von der Eisenbrücke nicht kurzgeschlossen wird,iSt jeder Strang durch den be= reits genannten "radialen-Längskanal" vom Nachbar= strang getrennt.So that the lines of force flow from one side of the rope to the other side of the rope is not short-circuited by the iron bridge, every strand is already through it called "radial longitudinal channel" from the neighbor = strand separated.

Erzielbare Vorteile: Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin,daß der magnetische Pluß beruhigt und bei der Spannungserzeugung im Generator einen bessere Spannungverlauf ergibt und praktisch frei von Oberwellen ist.Achievable benefits: The advantages that can be achieved with the invention exist especially in the fact that the magnetic plus calms down and in the generation of voltage results in a better voltage curve in the generator and practically free of harmonics is.

Eine Verbesserung vom Wirkungsgrad < und vom cost ist gegeben.There is an improvement in efficiency and cost.

Beschreibung eines Ausführungsbeispiels: Ein Polpaar mit 3 Strängen und 3 Nuten je Strang wurde vergleichsweise ausgeführt.6inmal mit halb= geschlossenen Nuten und einmal mit geschlossenen Nuten.Description of an embodiment: A pole pair with 3 strands and 3 grooves per strand were carried out comparatively, 6 times with half = closed Grooves and once with closed grooves.

Ein Permanentmagnet wurde im gleichen Abstand und gleicher Geschwindigkeit an den Polpaaren vorbei= geführt.A permanent magnet was at the same distance and at the same speed past the pole pairs = guided.

An den Strängen wurde mit dem KO nachstehender Spannungsverlauf aufgezeigt und ein Amperemeter zeigte den gleichen Ausschlag an.The following voltage curve was shown on the strands with the KO and an ammeter showed the same reading.

Spannungskurve 1 zeigt deutlich die Nut öffnungen an - siehe Bild 3 -SPannungskurve 2 zeigt einen gleichmäßigen Kurven= verlauf - siehe Bild 4 -. Tension curve 1 clearly shows the slot openings - see picture 3 - voltage curve 2 shows a uniform curve = course - see picture 4 -.

Bild 5 zeigt Ausführungsformen der Einzelbleche. Figure 5 shows embodiments of the individual sheets.

Bild 6 zeigt einen Gesamtschnitt mit geschlossenen Nuten und Längskanälen für 3 Nuten je Strang, und 3 Phasen-Drehstrom. Figure 6 shows an overall section with closed grooves and longitudinal channels for 3 grooves per strand, and 3-phase three-phase current.

- Leerseite -- blank page -

Claims (7)

Q9entansprüche: ~~~~~~ ~~~~~~ (1.IBlechpaket für elektrische Maschinen mit geschlosse= nen Nuten, dadurch gekennzeichnet,daß radiale-Längskanäle in dem Blechpaket vorhanden sind.Q9ent claims: ~~~~~~ ~~~~~~ (1st sheet metal package for electrical machines with closed = NEN grooves, characterized in that radial longitudinal channels in the Laminated core available. 2.Blechpakete für elektr. Maschinen nach Anspruch 1, dadurch gekennzeichnet,daß zwischen zwei Kanälen die Nuten eines Stranges liegen. 2. Sheet metal packages for electr. Machines according to claim 1, characterized in that the grooves of a strand lie between two channels. 3. Blechpaket für elektr. Maschinen nach Anspruch 1, dadurch gekennzeichnet,daß die Nuten geschlossen sind,einzeln + in Gruppen angeordnet sein können.3rd sheet package for electr. Machines according to claim 1, characterized in that the grooves are closed, can be arranged individually + in groups. 4. Blechpaket für elektrische Maschinen nach Anspruch 1, dadurch gekennzeichnet,daß offene Nuten,nach Ein= bringung der Leiter,geschlossen werden können.4. Laminated core for electrical machines according to claim 1, characterized in that Open grooves can be closed after the conductors have been introduced. 5. Blechpakete für elektr. Maschinen nach Anspruch 1, dadurch gekennzeichnet,daß die Kanäle die Nuttiefe-und tiefer gehen können.5. Sheet metal packages for electr. Machines according to claim 1, characterized in that the channels the groove depth and can go deeper. 6. Blechpaket für elektrische Maschinen nach Anspruch 1, dadurch gekennzeichnet,daß die Kanäle so breit sind, daß sie einen erheblichen Widerstand darstellen gegen= über dem Luftspaltwiderstand Stator - Rotor.6. Laminated core for electrical machines according to claim 1, characterized in that the channels are so wide that they represent considerable resistance to = above the air gap resistance stator - rotor. 7. Blechpaket für elektr. Maschinen nach Anspruch 1, dadurch gekennzeichnet,daß jedes Blechpaket einzeln dargestellt werden kann.7. Sheet package for electr. Machines according to claim 1, characterized in that each laminated core can be represented individually.
DE19843433450 1984-09-12 1984-09-12 Laminate stack for electrical machines having closed slots Withdrawn DE3433450A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843433450 DE3433450A1 (en) 1984-09-12 1984-09-12 Laminate stack for electrical machines having closed slots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843433450 DE3433450A1 (en) 1984-09-12 1984-09-12 Laminate stack for electrical machines having closed slots

Publications (1)

Publication Number Publication Date
DE3433450A1 true DE3433450A1 (en) 1986-03-20

Family

ID=6245203

Family Applications (1)

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DE19843433450 Withdrawn DE3433450A1 (en) 1984-09-12 1984-09-12 Laminate stack for electrical machines having closed slots

Country Status (1)

Country Link
DE (1) DE3433450A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859895A (en) * 1987-01-28 1989-08-22 Mitsubishi Denk Kabushiki Kaisha Armature coil slots having grooves formed in its throat
EP0881742A2 (en) * 1997-05-26 1998-12-02 Denso Corporation AC generator for vehicles
US6137201A (en) * 1997-05-26 2000-10-24 Denso Corporation AC generator for vehicles
US6833640B2 (en) * 2000-12-07 2004-12-21 Siemens Westinghouse Power Corporation Method and apparatus to tune rotor's torsional natural frequency by geometry of rotor winding slot
US7830062B2 (en) * 2006-12-12 2010-11-09 Nidec Corporation Motor having round and angular coils

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859895A (en) * 1987-01-28 1989-08-22 Mitsubishi Denk Kabushiki Kaisha Armature coil slots having grooves formed in its throat
EP0881742A2 (en) * 1997-05-26 1998-12-02 Denso Corporation AC generator for vehicles
EP0881742A3 (en) * 1997-05-26 2000-05-10 Denso Corporation AC generator for vehicles
US6137201A (en) * 1997-05-26 2000-10-24 Denso Corporation AC generator for vehicles
US6459186B1 (en) 1997-05-26 2002-10-01 Denso Corporation AC generator for vehicles
US6833640B2 (en) * 2000-12-07 2004-12-21 Siemens Westinghouse Power Corporation Method and apparatus to tune rotor's torsional natural frequency by geometry of rotor winding slot
US7830062B2 (en) * 2006-12-12 2010-11-09 Nidec Corporation Motor having round and angular coils

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