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DE748606C - Arrangement of the ventilation ducts in the active iron parts of electrical machines, especially those with a large diameter - Google Patents

Arrangement of the ventilation ducts in the active iron parts of electrical machines, especially those with a large diameter

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Publication number
DE748606C
DE748606C DEM139268D DEM0139268D DE748606C DE 748606 C DE748606 C DE 748606C DE M139268 D DEM139268 D DE M139268D DE M0139268 D DEM0139268 D DE M0139268D DE 748606 C DE748606 C DE 748606C
Authority
DE
Germany
Prior art keywords
ventilation ducts
arrangement
electrical machines
grooves
electrical
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
DEM139268D
Other languages
German (de)
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 filed Critical
Priority to DEM139268D priority Critical patent/DE748606C/en
Application granted granted Critical
Publication of DE748606C publication Critical patent/DE748606C/en
Expired legal-status Critical Current

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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

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

Description

Anordnung der Lüftungskanäle in den aktiven Eisenteilen elektrischer Maschinen, insbesondere mit großem Durchmesser Die Erfindung bezieht sich auf eine Anordnungoder Lüftungskanäle in den aktiven Eisenteilchen elektrischer Maschinen, insbesondere mit großem Durchmesser, bei der die in mehreren Nutkreisen liegenden Nuten gegeneins ander versetzt sind.Arrangement of the ventilation ducts in the active iron parts electrical Machines, especially large diameter machines. The invention relates to a Arrangement or ventilation ducts in the active iron particles of electrical machines, in particular with a large diameter, in which the lying in several groove circles Grooves are offset against each other.

Die Erfindung besteht darin, daß zwischen den benachbarten Nuten desjenigen Nutkreises, der von dem vom Magnetfluß durchsetzten Rand am weitesten entfernt ist, Lüftungskanäle liegen.The invention consists in that between the adjacent grooves of the one The groove circle that is furthest away from the edge through which the magnetic flux passes, Ventilation ducts lie.

Eingehende Untersuchungen haben die große Bedeutung vorliegender Erfindung für die Wicklung elektrischer Maschinen insbesondere mit großem Durchmesser ergeben. Hier besteht nicht wie bei Maschinen kleinen und kleinsten Durchmessers die Möglichkeit, die Konizität des Zahnes für den Einbau von Lüftungskanälen.unter Einhaltung der maximalen Zahninduktion über die ganze Höhe des Zahnes hinweg auszunutzen. Die Erfindung wirkt sich hier in einer entscheidenden Verkleinerung der Gesamtabmessungen der Maschine aus. Die erfindungsgemäße Anordnung hat grundsätzlich auch Vorteile bei Maschinen kleinen Durchmessers. Soweit diese versetzte Nuten besitzen, werden hier erfindungsgemäß die Lüftungskanäle zwischen Nuten angeordnet, die nicht auf demjenigen Nutkreis liegen, der dem vom Magnetfluß durchsetzten Rand am nächsten liegt. So erhält man gegenüber der bisherigen Anordnung der Lüftungskanäle zwischen den Zähnen bei Maschinen mit einreihigen Nuten den großen Vorzug, daß man die Abmessungen der Maschinen auf mittlere magnetische Belastung bestimmen kann und maximale magnetische Belastungen hoher Amperewindungen -grundsätzlich vermieden werden.Thorough investigations are of great importance to the present invention for the winding of electrical machines, in particular with a large diameter. Unlike machines with small and very small diameters, it is not possible to the conicity of the tooth for the installation of ventilation ducts. in compliance with the to utilize maximum tooth induction over the entire height of the tooth. The invention affects here in a decisive reduction in the overall dimensions of the Machine off. The arrangement according to the invention also has advantages in principle Small diameter machines. As far as these have staggered grooves, are here according to the invention, the ventilation ducts are arranged between grooves that are not on the one Groove circle lie which is closest to the edge traversed by the magnetic flux. So compared to the previous arrangement of the ventilation ducts between the teeth in machines with single-row grooves the great advantage that you can measure the dimensions of the Machines can determine medium magnetic stress and maximum magnetic Loads of high ampere turns should be avoided in principle.

Für die erfindungsgemäße Anordnung erhält man auch den Vorteil einer kleinen Stromverdrängung, da die an der erfindungsgemäß vorgesehenen Stelle angeordneten Kanäle bewirken, daß die einzelnen Teile des in der Nut angeordneten Leiters gleichmäßiger vom magnetischen Fluß umfaßt werden. Auch dieser Vorteil tritt grundsätzlich nicht nur bei elektrischen Maschinen großen und größten Durchmessers auf.The arrangement according to the invention also has the advantage of a small current displacement, since the arranged at the point provided according to the invention Channels have the effect that the individual parts of the conductor arranged in the groove are more uniform be embraced by the magnetic flux. In principle, this advantage does not occur either only large and large diameter electrical machines.

Erfindungsgemäß wird also in erster Linie der Bau von Generatoren großer Leistung dadurch ermöglicht,°daß die entwickelte Wärine durch die Kanäle ohne Beeinträchtigung der magnetischen Leitfähigkeit abgeführt, elektrische Verluste durch Verminderung der Stromverdrängung herabgesetzt und magnetische Verluste durch Erhöhung des magnetischen Onerwiderstandes weitgehend vermieden werden.According to the invention, the construction of generators is primarily used Great performance is made possible by the fact that the developed heat passes through the channels Dissipated without impairing the magnetic conductivity, electrical losses by reducing the current displacement and reducing magnetic losses Increase in the magnetic resistance can largely be avoided.

Die Erfindung wird dadurch nicht berührt, daß bei einer Wendelpolmaschine in dem Raum zwischen der Wicklung des Hauptpols und der Wicklung des Hilfspols ein Lüftungskanal eingesetzt wird; hierauf bezieht sich die Erfindung nicht.The invention is not affected by the fact that in a helical pole machine in the space between the winding of the main pole and the winding of the auxiliary pole Ventilation duct is used; the invention does not relate to this.

Die Erfindung wird nunmehr an Hand der Zeichnung an, einigen Ausführungsbeispielen näher erläutert: In Abb. i ist die Anordnung für zweireihige Ausführung mit kreisrunden Nuten b,. b2 auf den N utkreisen a .,, a2 dargestellt. Für kreisrunde Nuten. ist die erfindungsgemäße Anordnung besonders vorteilhaft. Erfindungsgemäß sind nur Lüftungskanäle d, außerhalb der inneren Nutreilie mit den zugehörigen Nuten b, direkt in radialer Richtung liegend angeordnet. Sie liegen also im magnetisch mir schtvach beanspruchten Teil und bilden mit den Nuten zusammen die Zahnform, die nicht mehr geradlinig, sondern gewunden verläuft.The invention will now be based on the drawing, some exemplary embodiments explained in more detail: In Fig. i the arrangement for double-row design with circular Grooves b ,. b2 shown on the circles a. ,, a2. For circular grooves. is the arrangement according to the invention is particularly advantageous. According to the invention, only ventilation ducts are d, outside the inner groove area with the associated grooves b, directly in the radial direction Direction arranged horizontally. So you are in the magnetically stressed me schtvach Part and together with the grooves form the tooth shape, which is no longer straight, but is winding.

In Abb. 2 ist die Anordnung für vierreihige Ausführung mit kreisrunden Nuten dargestellt. Hier sind die einzelnen Wutkreise mit U,, a2, a3, a.4 bezeichnet. Auf diesen liegen die Nuten b" b2, bs, b4 gegeneinander versetzt, jedoch so, daß b, und b3 bzw. b2 und b4 auf demselben Radius liegen. Erfindungsgemäß sind auf dem vierten Nutkreis a4 Luftkanäle d, zwischen den Nuten b4 vorgesehen.In Fig. 2 the arrangement for four-row version with circular Grooves shown. Here the individual anger circles are labeled U ,, a2, a3, a.4. On these, the grooves b "b2, bs, b4 are offset from one another, but in such a way that b, and b3 or b2 and b4 are on the same radius. According to the invention are on the fourth groove circle a4 air channels d, provided between the grooves b4.

Beiden Ausführungsbeispielen ist gemeinsam, daß es sich um elektrische 'Maschinen finit großem Durchmesser handelt.Both embodiments have in common that they are electrical 'Machines are finitely large in diameter.

Claims (2)

PATENTANSPRÜCHE: i. Anordnung der Lüftungskanäle in den aktiven Eisenteilen elektrischer Maschinen, insbesondere mit großem Durchmesser, bei der die in mehreren Nutkreisen liegenden Nuten gegeneinander versetzt sind, dadurch gekennzeichnet, daß zwischen den benachbarten Nuten desjenigen Nutkreises (a. von Fig. i; a.4 von Fig.2), der von dem vom Magnetfluß durchsetzten Rand am weitesten entfernt ist, Lüftungskanäle (d,) liegen. PATENT CLAIMS: i. Arrangement of the ventilation ducts in the active iron parts electrical machines, especially those with large diameters, in which the multiple Grooves lying in circles are offset from one another, characterized in that that between the adjacent grooves of that groove circle (a. of Fig. i; a.4 of Fig. 2), which is furthest away from the edge penetrated by the magnetic flux, Ventilation ducts (d,) lie. 2. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß Nuten von runder Ouerächnittsform vorgesehen sind. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden.: deutsche Patentschriften ... Nr. .16868.I, 319409, :216304, 562:285; USA.-Patentschrift ...... Nr. 1 448 700; Electrical World, Bd.43 (IgIg), S.882, Abb. 13; Rudolf Richter, »Elektrische Maschinen«, Bd. 4. »Die Induktionsmaschinen« (1936). S.24.8, Abb. 164a; The Journal of the Institution of Electrical Eng:ineers, Bd. 67, S. 1073, Abb. 6..2. Arrangement according to claim i, characterized in that grooves of round Ouerächnittsform are provided. To distinguish the subject matter of the application from the state of the art, the following publications were taken into account in the granting procedure: German Patent Specifications ... No. .16868.I, 319409,: 216304, 562: 285; U.S. Patent ...... No. 1,448,700; Electrical World, Vol. 43 (IgIg), p. 882, Fig. 13; Rudolf Richter, "Electrical Machines", Vol. 4. "The Induction Machines" (1936). P.24.8, Fig.164a; The Journal of the Institution of Electrical Eng: ineers, Vol. 67, p. 1073, Fig. 6 ..
DEM139268D 1937-09-21 1937-09-21 Arrangement of the ventilation ducts in the active iron parts of electrical machines, especially those with a large diameter Expired DE748606C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM139268D DE748606C (en) 1937-09-21 1937-09-21 Arrangement of the ventilation ducts in the active iron parts of electrical machines, especially those with a large diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM139268D DE748606C (en) 1937-09-21 1937-09-21 Arrangement of the ventilation ducts in the active iron parts of electrical machines, especially those with a large diameter

Publications (1)

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DE748606C true DE748606C (en) 1944-11-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0627804A2 (en) * 1993-05-27 1994-12-07 General Electric Company Lamination for a dynamoelectric machine with improved cooling capacity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE216304C (en) *
DE319409C (en) * 1917-04-17 1920-03-09 Siemens Schuckertwerke G M B H Rotor for electrical machines with radial slots
US1448700A (en) * 1917-12-29 1923-03-13 Seidner Michael Liquid-cooled electric machine
DE468684C (en) * 1923-03-14 1928-11-22 Charles Algernon Parsons Winding for alternating current machines and transformers, consisting of a central conductor concentrically surrounding tubular conductors, which are all insulated from each other
DE562285C (en) * 1928-12-13 1932-10-24 Oerlikon Maschf Formation of the winding space in the stand of electrical machines, especially single-phase collector motors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE216304C (en) *
DE319409C (en) * 1917-04-17 1920-03-09 Siemens Schuckertwerke G M B H Rotor for electrical machines with radial slots
US1448700A (en) * 1917-12-29 1923-03-13 Seidner Michael Liquid-cooled electric machine
DE468684C (en) * 1923-03-14 1928-11-22 Charles Algernon Parsons Winding for alternating current machines and transformers, consisting of a central conductor concentrically surrounding tubular conductors, which are all insulated from each other
DE562285C (en) * 1928-12-13 1932-10-24 Oerlikon Maschf Formation of the winding space in the stand of electrical machines, especially single-phase collector motors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0627804A2 (en) * 1993-05-27 1994-12-07 General Electric Company Lamination for a dynamoelectric machine with improved cooling capacity
EP0627804A3 (en) * 1993-05-27 1995-01-11 Gen Electric Lamination for a dynamoelectric machine with improved cooling capacity.

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