[go: up one dir, main page]

DE331707C - Cooling device for coils of AC machines - Google Patents

Cooling device for coils of AC machines

Info

Publication number
DE331707C
DE331707C DENDAT331707D DE331707DD DE331707C DE 331707 C DE331707 C DE 331707C DE NDAT331707 D DENDAT331707 D DE NDAT331707D DE 331707D D DE331707D D DE 331707DD DE 331707 C DE331707 C DE 331707C
Authority
DE
Germany
Prior art keywords
cooling device
coils
groove
tube
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.)
Expired
Application number
DENDAT331707D
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Application granted granted Critical
Publication of DE331707C publication Critical patent/DE331707C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Induction Heating (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

Kühlvorrichtung für Spulen von WechSelstY0nlnlaSChlnen. Um die in den Spulen großer Wechsel_-strommaschinen erzeugte Wärme abzuführen, war es bisher nur üblich, die Spulen von einem Luftstrom bestreichen zu lassen. Eine wesentlich bessere Wirkung wird aber erhalten, .wenn man in die Nut ein Metallrohr einlegt, welches von einer Kühlflüssigkeit, beispielsweise 01, durchflossen wird, und die Flüssigkeit außerhalb der Maschine einer Rückkühlung unterwirft. Vorteilhafterweise wird man dem Rohr b in der Nut eine solche Form geben, daß es möglichst große Berührungsflächen mit der Spule a und den Nutenseiten erhält (Fig. i), während man außerhalb der Nut das Rohr mit kreisförmigem Querschnitt verwendet. Die Verbindung zwischen den Rohren wird an "einigen Stellen aus ölbeständigen Isoliermaterialien hergestellt, damit das Auftreten schädlicher Spannungen und Ströme vermieden wird.Cooling device for reels of interchangeable cylinders. To get the in So far, it has been the task of dissipating heat generated from the coils of large alternating current machines only common practice to let a stream of air sweep the coils. One essential but better effect is obtained if a metal tube is inserted into the groove, which is flowed through by a cooling liquid, for example 01, and the Subjecting liquid outside the machine to a re-cooling. Advantageously one will give the tube b in the groove such a shape that it has the largest possible contact surfaces with the coil a and the groove sides (Fig. i), while outside the groove the pipe with a circular cross-section is used. The connection between the pipes is made of oil-resistant insulating materials in some places so that the occurrence of harmful voltages and currents is avoided.

Damit in den Wandungen des die Kühlflüssigkeit führenden Rohres infolge,der Wirbelstrombildung keine zu hohe Erwärmung auftritt, kann zwischen Wicklung und Rohr ein Eisenlineal c eingelegt werden (Fig. 2). Das Lineal kann aus vernieteten Lamellen bestehen.Thus in the walls of the pipe carrying the cooling liquid as a result of Eddy current formation does not occur too much heating can occur between winding and Tube an iron ruler c can be inserted (Fig. 2). The ruler can be riveted off There are lamellas.

Zur Vermeidung der Wirbelströme kann auch das Rohr aus Metallschlauch hergestellt werden. Die spiralig verlaufenden Windungen des Metallschlauches unterteilen die für die Wirbelströme in Frage kommenden Strombahnen in ausreichender Weise.To avoid eddy currents, the tube can also be made of metal hose getting produced. Subdivide the spiral turns of the metal hose the current paths in question for the eddy currents in a sufficient manner.

Um eine stärkere Kühlwirkung zu -erzielen, können an dem Rohr b Drähte oder Streifen d angebracht, beispielsweise angelötet werden, die einerseits an der Nutenwand, anderseits an den Seiten der Wicklung a anliegen (Fig. 3 und q.).In order to achieve a stronger cooling effect, wires or strips d can be attached to the tube b , for example soldered, which rest on the one hand against the groove wall and on the other hand against the sides of the winding a (Fig. 3 and q.).

Claims (2)

PATENT-ANSPRÜCHE: r. Kühlvorrichtung für Spulen von Wechselstrommaschinen mit in die Nuten eingelegten, von Kühlflüssigkeit durchflossenen Röhren, dadurch gekennzeichnet, daß der Rohrteil innerhalb der Nut eine andere Form als außerhalb derselben besitzt. PATENT CLAIMS: r. Cooling device for coils of alternating current machines with tubes inserted into the grooves through which cooling liquid flows characterized in that the pipe part inside the groove has a different shape than outside owns the same. 2. Kühlvorrichtung nach Anspruch t, dadurch gekennzeichnet, :daß zwischen die Wicklung und,das Rohr ein gegebenenfalls lamelliertes Eisenlineal eingelegt ist. 3. - Kühlvorrichtung nach Anspruch i, dadurch gekennzeichnet, daß als Rohr Metallschlauch verwendet wird. q.. Kühlvorrichtung nach Anspruch i, dadurch gekennzeichnet, daß mit den Rohrwandungen Drähte oder Streifen verbunden sind, die zwischen den Nutenwandungen und den Seiten der zu kühlenden Spule liegen. -2. Cooling device according to claim t, characterized in that: that An iron ruler, which may be laminated, is inserted between the winding and the tube is. 3. - Cooling device according to claim i, characterized in that as a tube Metal hose is used. q .. cooling device according to claim i, characterized in that that wires or strips are connected to the pipe walls between the Groove walls and the sides of the coil to be cooled lie. -
DENDAT331707D Cooling device for coils of AC machines Expired DE331707C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE331707T

Publications (1)

Publication Number Publication Date
DE331707C true DE331707C (en) 1921-01-15

Family

ID=6198649

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT331707D Expired DE331707C (en) Cooling device for coils of AC machines

Country Status (1)

Country Link
DE (1) DE331707C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1202411B (en) * 1955-05-18 1965-10-07 Asea Ab Cooling device for electrical agitator windings of melting furnaces
EP0342554A1 (en) * 1988-05-16 1989-11-23 Magnet-Motor Gesellschaft für magnetmotorische Technik mbH Liquid-cooled electric machine
EP0414927A1 (en) * 1989-08-28 1991-03-06 Siemens Aktiengesellschaft Liquid-cooled stator winding for an electric driving machine
US6545377B2 (en) 2001-01-25 2003-04-08 Koninklijke Philips Electronics N.V. Coil with cooling means
DE102004018525A1 (en) * 2004-04-14 2005-11-17 Voith Turbo Gmbh & Co. Kg Winding unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1202411B (en) * 1955-05-18 1965-10-07 Asea Ab Cooling device for electrical agitator windings of melting furnaces
EP0342554A1 (en) * 1988-05-16 1989-11-23 Magnet-Motor Gesellschaft für magnetmotorische Technik mbH Liquid-cooled electric machine
EP0414927A1 (en) * 1989-08-28 1991-03-06 Siemens Aktiengesellschaft Liquid-cooled stator winding for an electric driving machine
US6545377B2 (en) 2001-01-25 2003-04-08 Koninklijke Philips Electronics N.V. Coil with cooling means
DE102004018525A1 (en) * 2004-04-14 2005-11-17 Voith Turbo Gmbh & Co. Kg Winding unit

Similar Documents

Publication Publication Date Title
DE331707C (en) Cooling device for coils of AC machines
US2154216A (en) Cooling pad
CH99387A (en) Cooling device for slot windings in electrical machines.
DE516394C (en) Dry rectifier
DE732300C (en) High performance electrodynamic loudspeaker with cooled field and voice coil
DE593732C (en) Device for heat dissipation from the active parts of transformers with tube winding
DE621987C (en) Device for heat dissipation from the active parts of transformers
DE907100C (en) Inductor for the partial heating of elongated workpieces in the longitudinal direction
DE975389C (en) Bars for electrical machines
DE447257C (en) Circulating field magnet for turbo generators, in which the excitation winding consists of more than two coils made of bare metal strips
DE579466C (en) Rectifier discharge tubes
DE528690C (en) Coil conductor for the coil of induction furnaces
DE911993C (en) Cooling device for transformers, especially traveling transformers
DE363528C (en) Cooling device for internal combustion engines
DE1191057B (en) Process for the continuous welding of side ribs to pipes
DE700288C (en) Coil for coreless induction ovens
DE357716C (en) Ignition apparatus for internal combustion engines
DE935918C (en) Transformer with supports arranged between disc coils
DE721900C (en) Method and device for straightening workpieces made of magnetizable materials
DE430622C (en) Distillation column
DE950078C (en) Transformer with a secondary winding essentially formed by a copper bar wound on itself, in particular for electrical welding machines
AT309592B (en) Transformer or induction coil with iron core
DE523376C (en) Induction motor with a short-circuited drum bar winding in the runner
DE910790C (en) Switching device for high currents at low voltage, especially for reversing the polarity of currents for galvanic baths
AT215167B (en) Electric stirring device