DE467201C - Electrical machine with radial air channels formed by cutouts from the sheet metal lamellas, regularly distributed around the circumference of the sheet metal body - Google Patents

Electrical machine with radial air channels formed by cutouts from the sheet metal lamellas, regularly distributed around the circumference of the sheet metal body

Info

Publication number
DE467201C
DE467201C DES62424D DES0062424D DE467201C DE 467201 C DE467201 C DE 467201C DE S62424 D DES62424 D DE S62424D DE S0062424 D DES0062424 D DE S0062424D DE 467201 C DE467201 C DE 467201C
Authority
DE
Germany
Prior art keywords
sheet metal
cutouts
circumference
electrical machine
regularly distributed
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
DES62424D
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Publication date
Priority to DES62424D priority Critical patent/DE467201C/en
Application granted granted Critical
Publication of DE467201C publication Critical patent/DE467201C/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

Elektrische Maschine mit durch Ausschnitte aus den Blechlamellen gebildeten, am Umfang des Blechkörpers regelmäßig verteilten radialen Luftkanälen Es ist bekannt, bei elektrischen Maschinen die Kühlluft dem Blechkörper der Maschine durch mehrere am Umfang verteilte Luftkanäle in radialer Richtung zuzuführen. Uin dabei zu vermeiden, daß, die Bleche durch Aussparung der Kanalöffnungen in Segmente zerfallen, hat man die Luftkanäle in axialer Richtung abgestuft, wobei man den in axialer Richtung benachbarten Blechgruppen, die von den Luftkanälen durchdrungen werden, von außen und von innen Ausschnitte ;gegeben hat,. die sich gegenseitig überlappen. Ausführungsbeispiele für diese an sich bekannten Anordnungen sind in Abb. i bis q. der Zeichnung dargestellt. In dem aktiven Eisen i befinden sich Radialkanäle, durch die die Kühlluft dem Luftschlitz 3 zwischen dem Ständereisen i und dem Läufereisen 2 zugeführt wird. Die Kanäle bestehen in Abb. i und 2 aus zwei. ,gegeneinander versetzten Teilen 4. und 5. Die an die Teile q. anstoßenden Bleche 6 haben Ausschnitte von außen erhalten und die an die Kanäle 5 anstoßenden Bleche 7 Ausschnitte von innen. Die Ausschnitte übergreifen einander, so daß,- eine Verbindung zwischen den Kanalteilen. q. und 5 hergestellt ist. Abb.3 und q. zeigen eine Kanalanordnung .ähnlicher Art, bei der sich die Radialkanäle aber in zwei Zweige spalten, wodurch eine symmetrische Anordnung zur Mittelebene des Ständerquerschnittes erreicht wird.Electric machine with formed by cutouts from the sheet metal lamellas, on the circumference of the sheet metal body regularly distributed radial air channels It is known in electrical machines the cooling air passes through the sheet metal body of the machine through several to supply air channels distributed on the circumference in the radial direction. Uin to avoid that the sheets disintegrate into segments by recessing the channel openings, one has the air ducts graded in the axial direction, one being the in the axial direction neighboring sheet metal groups, which are penetrated by the air ducts, from the outside and from the inside clippings; has given. which overlap each other. Embodiments for these known arrangements are shown in Fig. i to q. shown in the drawing. In the active iron i there are radial channels through which the cooling air passes through the air slot 3 is fed between the stator iron i and the rotor iron 2. The channels exist in Fig. i and 2 from two. , mutually offset parts 4. and 5. The to the Parts q. abutting plates 6 have received cutouts from the outside and to the Channels 5 abutting sheets 7 cutouts from the inside. The cutouts overlap each other so that, - a connection between the channel parts. q. and 5 manufactured is. Fig.3 and q. show a channel arrangement .ähnlicher Art in which the radial channels but split into two branches, creating a symmetrical arrangement about the median plane of the stand cross-section is achieved.

Für die Fabrikation von Maschinen mit derartigen Kanälen ist es nun unvorteilhaft, wenn Bleche von verschiedener Form gestanzt werden müssen. Dies wird nach der Erfindung dadurch vernmzeden; daß die Bleche, an denen Öffnungen zur Bildung der Kühlkanäle vorgesehen werden müssen, abwechselnd Ausschnitte in radialer Richtung von außen und innen erhalten., die für alle Bleche gleiche Form und Abstand haben. Abb.5 veranschaulicht ein solches Blech, das abwechselnd äußere Ausschnitte 8 und innere Ausschnitte 9 besitzt. Bei der Zusammenstellung der Blechpakete werden dann Teilpakete, die die Kanalteile enthalten, um eine Kanalteilung gegeneinander versetzt. Man erhält dann die in Abb. i und 2 veranschaulichten einfachen Kanäle oder die in Abb.3 und q. dargestellten verzweigten Kanäle. Man kann aber auch ohne weiteres mehrere Kanäle in axialer Richtung neberieinand-er anordnen, die sich ineinander verzweigen; wie es in Abb. 6 und 7 veranschaulicht ist. Die in diesen Ausführungsbeispielen dargestellte Verzweigung kann beliebig bis an die Stirnseiten der Blechpakete fortgesetzt werden.It is now for the manufacture of machines with such channels disadvantageous when sheets of different shapes have to be punched. this will according to the invention thereby vernmzeden; that the sheets on which openings for formation the cooling channels must be provided, alternating cutouts in the radial direction received from the outside and inside., which have the same shape and spacing for all sheets. Fig.5 illustrates such a sheet, the alternating outer cutouts 8 and 9 has inner cutouts. When putting together the sheet metal stacks Part packets that contain the channel parts offset from one another by one channel division. One then obtains the simple channels or those illustrated in Figs. I and 2 in fig.3 and q. branched channels shown. But you can also without further ado Arrange several channels next to each other in the axial direction, which one inside the other branch; as illustrated in Figs. 6 and 7. In these embodiments The branch shown can be continued as desired up to the end faces of the laminated cores will.

Claims (2)

I'A TENTANSPRÜCHE: i. Elektrische Maschine mit durchAusschnitte aus den Blechlamellen gebildeten, am Umfang des Blechkörpers regelmäßig verteilten radialen Luftkanälen, deren äußerer und innerer Teil in verschiedenen axial nebeneinanderliegenden Blechen oder Blechpaketen verlaufen, dadurch gekennzeichnet, daß aus jedem an der Bildung der Kanäle beteiligten Blech in der Umfangsrichtung immer abwechselnd ein innerer und ein.äußerer Kanalteil ausgespart ist, so daß alle diese Bleche kongruente Aussparungen aufweisen. I'A TENT CLAIMS: i. Electric machine with cutouts the sheet metal lamellae formed, on the circumference of the sheet metal body regularly distributed radial Air ducts, the outer and inner part of which in different axially adjacent Sheets or sheet stacks run, characterized in that from each to the Formation of the channels involved sheet metal always alternating in the circumferential direction inner and ein.äßener channel part is recessed, so that all these sheets are congruent Have recesses. 2. Elektrische Maschine nach Anspruch i, gekennzeichnet durch mehrere in der Achsebene nebeneinanderliegende, sich ineinander verzweigende radiale Kanäle.2. Electrical machine according to claim i, characterized by several in the axial plane juxtaposed, branching into one another radial channels.
DES62424D Electrical machine with radial air channels formed by cutouts from the sheet metal lamellas, regularly distributed around the circumference of the sheet metal body Expired DE467201C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES62424D DE467201C (en) Electrical machine with radial air channels formed by cutouts from the sheet metal lamellas, regularly distributed around the circumference of the sheet metal body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES62424D DE467201C (en) Electrical machine with radial air channels formed by cutouts from the sheet metal lamellas, regularly distributed around the circumference of the sheet metal body

Publications (1)

Publication Number Publication Date
DE467201C true DE467201C (en) 1928-10-22

Family

ID=7495608

Family Applications (1)

Application Number Title Priority Date Filing Date
DES62424D Expired DE467201C (en) Electrical machine with radial air channels formed by cutouts from the sheet metal lamellas, regularly distributed around the circumference of the sheet metal body

Country Status (1)

Country Link
DE (1) DE467201C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974828C (en) * 1944-04-29 1961-05-10 Siemens Ag Transformer with a liquid-cooled, laminated iron core separated from the winding for inductive heaters, especially for surface hardening with medium and high frequencies
EP0155405A1 (en) * 1984-03-21 1985-09-25 Siemens Aktiengesellschaft Device for indirect gas cooling of stator windings and/or for the direct gas cooling of stator laminated magnetic cores of a dynamo-electric machine, particularly for gas-cooled turbogenerators
DE3504782A1 (en) * 1985-02-13 1986-08-14 Schorch GmbH, 4050 Mönchengladbach Rotor laminate stack and/or stator laminate stack for electrical machines
EP1343243A1 (en) * 2000-12-11 2003-09-10 Mitsubishi Heavy Industries, Ltd. Cooling structure of generator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974828C (en) * 1944-04-29 1961-05-10 Siemens Ag Transformer with a liquid-cooled, laminated iron core separated from the winding for inductive heaters, especially for surface hardening with medium and high frequencies
EP0155405A1 (en) * 1984-03-21 1985-09-25 Siemens Aktiengesellschaft Device for indirect gas cooling of stator windings and/or for the direct gas cooling of stator laminated magnetic cores of a dynamo-electric machine, particularly for gas-cooled turbogenerators
DE3504782A1 (en) * 1985-02-13 1986-08-14 Schorch GmbH, 4050 Mönchengladbach Rotor laminate stack and/or stator laminate stack for electrical machines
EP1343243A1 (en) * 2000-12-11 2003-09-10 Mitsubishi Heavy Industries, Ltd. Cooling structure of generator
EP1343243A4 (en) * 2000-12-11 2005-07-13 Mitsubishi Heavy Ind Ltd Cooling structure of generator

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