DE859498C - Polygonal stator plate package built into the hollow cylinder-shaped housing of ventilated electrical machines - Google Patents

Polygonal stator plate package built into the hollow cylinder-shaped housing of ventilated electrical machines

Info

Publication number
DE859498C
DE859498C DES8088D DES0008088D DE859498C DE 859498 C DE859498 C DE 859498C DE S8088 D DES8088 D DE S8088D DE S0008088 D DES0008088 D DE S0008088D DE 859498 C DE859498 C DE 859498C
Authority
DE
Germany
Prior art keywords
polygonal
electrical machines
laminated core
hollow cylinder
shaped housing
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
DES8088D
Other languages
German (de)
Inventor
Siegfried Voll
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES8088D priority Critical patent/DE859498C/en
Application granted granted Critical
Publication of DE859498C publication Critical patent/DE859498C/en
Expired legal-status Critical Current

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
    • H02K1/20Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium

Landscapes

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

Description

Uni beim Stanzen von Ständerblechpaketen an Abfall zu sparen, werden häufig statt runden Blechschnitten polygonale, vorzugsweise viereckige Schnitte verwendet. Derartige Bleche haben außer-; dem den Vorzug, daß bei durchzugsbelüfteten Maschinen dieKühlluftkanäleaußerhalb des magnetisch wirksamen Teiles an den Ecken der Bleche angeordnet «-erden können. Beim Einbau eines aus derartigen polygonalen Blechen zusammengesetzten Paketes in ein rundes Gehäuse, das gegenüber einem ebenfalls polygonal geformten Gehäuse den Vorzug der leichteren Herstellung und Bearbeitung hat, entstehen an den Seitenteilen des Blechpaketes segmentförmige @ILülillzanäle, deren Querschnitt, insbesondere bei viereckigen Blechpaketen, im Verhältnis zu dem von den innerhalb des Blechpaketes verlaufenden Kühlkanälen gebildeten Querschnitt sehr groß ist. Es strömt daher nur ein kleiner Teil der gesamten Kühlluft durch die für die Kühlung der Maschine besonders wichtigen Blechpaketkanäle.Uni to save waste when punching stator cores Often, instead of round sheet metal cuts, polygonal, preferably square cuts used. Such sheets also have; which has the advantage that with open-loop ventilated Machine the cooling air ducts outside the magnetically effective part at the corners of the sheets arranged «- can earth. When installing one of such polygonal Sheet metal composite package in a round housing, which is opposite to a likewise polygonal shaped housing the merit of easier manufacture and machining segment-shaped @ ILülillz channels are created on the side parts of the laminated core, their cross-section, especially in the case of square laminated cores, in relation to the cross-section formed by the cooling channels running inside the laminated core is very big. Therefore only a small part of the total cooling air flows through the laminated core ducts, which are particularly important for cooling the machine.

Die Erfindung hat die Aufgabe, die Kühlwirkung bei derartigen, in das hohlzylinderförmige Gehäuse durchzugsbelüfteter elektrischer Maschinen. eingebauten polygonalen, vorzugsweise viereckigen Blechpaketen zusteigernund insbesonderedie innerhalb der Blechpakete in den magnetisch nicht wirksamen Ecken axial verlaufenden, durch Aussparungen gebildeten Kühlkanäle wesentlich stärker als bisher für den Wärmeaustausch heranzuziehen.The invention has the task of improving the cooling effect in such, in the hollow cylindrical housing of through-ventilated electrical machines. built-in buy polygonal, preferably square, sheet metal stacks and especially the axially running corners within the laminated cores in the magnetically ineffective corners, Cooling channels formed by recesses are much stronger than before for the exchange of heat to use.

Erfindungsgemäß erstrecken sich die Druckringe und Endbleche des Blechpaketes oder beide abweichend von dessen eckigem Profil rings 'herum bis an die Gehäuseinnenfläche. Damit wird die gesamte Kühlluft gezwungen, durch die innerhalb des polygonalen Blechpaketumfanges verlaufenden Kanäle zu strömen. Um wenigstens einen Teil der Kühlluft an den Seitenflächen des polygonalen Blechpaketteiles vorbeistreichen zu lassen, könpen an den außerhalb des polygonalen Profils liegenden Teilen des Blechpaketes mit dem polygonalen Profil abschließende Luftschlitze angeordnet sein, an die sich zweckmäßig über den Seitenflächen des polygonalen Blechpaketes durch Leitbleche gebildete Kühlkanäle anschließen.According to the invention, the pressure rings and end plates of the laminated core extend or both deviating from its angular profile all around up to the inner surface of the housing. In this way, the entire cooling air is forced through the inside of the polygonal laminated core circumference flowing channels. To at least part of the cooling air on the side surfaces of the polygonal sheet metal package part can be passed to the outside of the polygonal profile lying parts of the laminated core with the polygonal profile concluding air slots can be arranged, which are expediently over the side surfaces of the polygonal laminated core, connect cooling channels formed by guide plates.

Es ist wohl eine Ausführung bekannt, bei der die segmentförmigen Kühlkanäle zwischen der Innenwand eines hohlzylinderförmigen Gehäuses und der Außenwand des polygonalen Blechpaketes durch eine Querrippe des Gehäuses zum Teil abgedeckt sind, diese Querrippe ist aber etwa in der Mitte der Längsseite des Blechpaketes angeordnet. Dadurch wird zwischen den Lufteintrittsöffnungen in die segmentförmigen Kühlkanäle an der einen Stirnseite des Blechpaketes und der von der Querrippe gebildeten Wand ein Luftsack gebildet, der kühlungstechnisch sehr ungünstig ist. Eine Verbesserung der Kühlwirkung wie bei der erfindungsgemäßen Anordnung wird daher bei dieser bekannten Maschine nicht erzielt.A design is known in which the segment-shaped cooling channels between the inner wall of a hollow cylindrical housing and the outer wall of the polygonal laminated core are partially covered by a transverse rib of the housing, however, this transverse rib is arranged approximately in the middle of the longitudinal side of the laminated core. As a result, between the air inlet openings in the segment-shaped cooling channels on one end face of the laminated core and the wall formed by the transverse rib an airbag is formed, which is very unfavorable in terms of cooling. An improvement the cooling effect as in the arrangement according to the invention is therefore known in this Machine not achieved.

Die Erfindung soll an Hand des in den Fig. i und 2 dargestellten Ausführungsbeispieles näher erläutert «-erden. i ist der polygonale, Tier viereckige Teil des Ständerblechpaketes. Die Endbleche 2 an den beiden Stirnseiten des Blechpaketes haben rundes Profil, das das viereckige Profil vollständig überdeckt. Das Blechpaket hat durchgehende Lüftungskanäle 3, die im viereckigen Teil an den Ecken des Viereckes angeordnet sind. In den segmentförmigen, die viereckigen Bleche überragenden Teilen der Endbleche sind Luftschlitze. vorgesehen, an die sich über den Seitenflächen des viereckigen Blechpaketes durch Leitbleche 5 gebildete Kanäle 6 anschließen.The invention is based on the embodiment shown in FIGS explained in more detail «-erden. i is the polygonal, animal square part of the stator core. The end plates 2 on the two end faces of the laminated core have a round profile, that completely covers the square profile. The laminated core has continuous Ventilation ducts 3, which are arranged in the square part at the corners of the square are. In the segment-shaped parts of the end plates protruding from the square plates are louvers. provided on the side faces of the quadrangular Connect the laminated core channels 6 formed by guide plates 5.

Die Erfindung bietet folgende Vorteile: Die Kühlung der Maschine ist durch besseres Heranführen der Kühlluft an die wärmsten Stellen der Blechpakete erheblich verbessert. Das runde Gehäuse braucht durch kein besonderes Mittel. dem polygonalen Querschnitt des Blechpaketes angepaßt zu werden, die Sitzflächen für das Blechpaket können daher gedreht werden. Ferner ragen die Wickelköpfe an den Flächenseiten des polygonalen Blechpaketes nicht mehr über den äußeren Umfang des gesamten Blechpaketes hinaus. Sie sind daher besser geschützt. Ein weiterer Vorteil besteht darin, daß das Blechpaket trotz seiner polygonalen Grundform gerollt und daher leichter transportiert werden kann.The invention offers the following advantages: The cooling of the machine is by better supplying the cooling air to the warmest parts of the laminated core vastly improved. The round case doesn't need any special means. to the polygonal cross-section of the laminated core to be adapted, the seating for the laminated core can therefore be rotated. Furthermore, the winding heads protrude from the Surface sides of the polygonal laminated core no longer over the outer circumference of the entire sheet metal package. You are therefore better protected. Another advantage is that the laminated core rolled and despite its polygonal shape therefore can be transported more easily.

Claims (1)

PATENTANSPRUCH: In das hohlzylinderförmige Gehäuse durchzugsbelüfteter elektrischer Maschinen eingebautes polygonales, vorzugsweise viereckiges Ständerblechpaket mit in seinen magnetisch nicht wirksamen Ecken axial verlaufenden, durch Aussparungen gebildeten Kühlkanälen:, dadurch gekennzeichnet, daß sich die Druckringe oder Endbleche (2) des Blechpaketes (i) oder beide abweichend von dessen eckigem Profil ringsherum bis an :die Gehäuseinnenfläche erstrecken.PATENT CLAIM: Through-ventilated into the hollow cylindrical housing Polygonal, preferably square, stator core built into electrical machines with axially extending in its magnetically ineffective corners, through recesses formed cooling channels:, characterized in that the pressure rings or end plates (2) of the laminated core (i) or both deviating from its angular profile all around to: extend the inner surface of the housing.
DES8088D 1942-01-16 1942-01-16 Polygonal stator plate package built into the hollow cylinder-shaped housing of ventilated electrical machines Expired DE859498C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES8088D DE859498C (en) 1942-01-16 1942-01-16 Polygonal stator plate package built into the hollow cylinder-shaped housing of ventilated electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES8088D DE859498C (en) 1942-01-16 1942-01-16 Polygonal stator plate package built into the hollow cylinder-shaped housing of ventilated electrical machines

Publications (1)

Publication Number Publication Date
DE859498C true DE859498C (en) 1952-12-15

Family

ID=7472665

Family Applications (1)

Application Number Title Priority Date Filing Date
DES8088D Expired DE859498C (en) 1942-01-16 1942-01-16 Polygonal stator plate package built into the hollow cylinder-shaped housing of ventilated electrical machines

Country Status (1)

Country Link
DE (1) DE859498C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110073A1 (en) * 1991-02-07 1992-10-22 Bergner Richard Gmbh Co Surge protector for HV electrical distribution system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110073A1 (en) * 1991-02-07 1992-10-22 Bergner Richard Gmbh Co Surge protector for HV electrical distribution system

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