DE975389C - Bars for electrical machines - Google Patents
Bars for electrical machinesInfo
- Publication number
- DE975389C DE975389C DES38939A DES0038939A DE975389C DE 975389 C DE975389 C DE 975389C DE S38939 A DES38939 A DE S38939A DE S0038939 A DES0038939 A DE S0038939A DE 975389 C DE975389 C DE 975389C
- Authority
- DE
- Germany
- Prior art keywords
- individual conductors
- flat sides
- strips
- intermediate pieces
- lattice bar
- 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
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)
- Coils Of Transformers For General Uses (AREA)
Description
Das Hauptpatent befaßt sich mit der Ausbildung eines Gitterstabes für elektrische Maschinen, bei dem durch stärkere Kröpfung der Einzelleiter die beiden Flachseiten des Gitterstabes mit Abstand nebeneinander angeordnet sind und mehrere in Richtung der Stabhöhe übereinander angeordnete, durch Zwischenstücke voneinander getrennte axiale Kühlkanäle einschließen. Gemäß dem Hauptpatent werden diese Kühlkanäle unmittelbar von den Einzelleitern sowie von innerhalb der Flachseiten angeordneten, über die ganze Nutlänge durchgehenden Zwischenstücken gebildet. Die Erfindung befaßt sich mit der weiteren Ausgestaltung eines solchen Gitterstabes. Gemäß der Erfindung bestehen bei einem gemäß dem Hauptpatent ausgebildeten Gitterstab die Zwischenstücke aus einem unmagnetischen, von den Einzelleitern isolierten Metall.The main patent deals with the formation of a lattice bar for electrical machines, in which the stronger cranking of the individual conductors both flat sides of the lattice bar are arranged at a distance from one another and several arranged one above the other in the direction of the rod height by means of spacers Include separate axial cooling channels. According to the main patent these cooling channels directly from the individual conductors as well as from within the flat sides arranged, formed over the entire length of the groove continuous intermediate pieces. the Invention is concerned with the further development of such a grating bar. According to the invention consist in a bar designed according to the main patent the intermediate pieces made of a non-magnetic metal isolated from the individual conductors.
Im Hauptpatent ist auch bereits vorgesehen, auf den äußeren Flachseiten des Gitterstabes Leisten für das Eindrücken der Einzelleiter im Raum der Zwischenstücke vorzusehen. Auch diese Leisten können in Weiterbildung der Erfindung aus von den Einzelleitern des Gitterstabes isoliertem unmagnetischem Metall bestehen.The main patent also provides for the outer flat sides of the lattice bar strips for pressing in the individual conductors in the space of the intermediate pieces to be provided. These bars can also be made from the in a development of the invention Individual conductors of the lattice bar consist of insulated non-magnetic metal.
Es ist bei Gitterstäben für elektrische Maschinen an sich bereits bekannt, der Abstandshalterung und der Freilassung von Kühlkanälen dienende Zwischenstücke aus von den Einzelleitern isoliertem Metall vorzusehen.It is in itself already in the case of bars for electrical machines known, the spacer and the release of cooling channels serving spacers to be provided from metal isolated from the individual conductors.
Durch die Ausbildung der Zwischenstücke und gegebenenfalls der zum Eindrücken der Einzelleiter verwendeten Leisten aus einem unmagnetischen Metall ergibt sich jedoch für den gemäß dem Hauptpatent ausgebildeten Gitterstab der Vorteil, daß die Kühlkanäle an Metall angrenzen, wodurch die Wärmeabführung verbessert wird. Eine weitere Verbesserung kann überdies noch dadurch erzielt werden, daß man die aus unmagnetischem Metall bestehenden Zwischenstücke oder Leisten hohl ausbildet und durch die Hohlräume ebenfalls ein Kühlmittel leitet.Through the formation of the spacers and possibly the for The individual conductors were pressed in using strips made of a non-magnetic metal However, there is the advantage for the bar designed according to the main patent, that the cooling channels adjoin metal, whereby the heat dissipation is improved. A further improvement can also be achieved by the fact that made of non-magnetic metal intermediate pieces or strips hollow and also passes a coolant through the cavities.
Die Zeichnung zeigt zwei Ausführungsbeispiele der neuen Anordnung, wobei die Fig. I der Fig. 3 der Patentschrift des Hauptpatentes entspricht, während die Fig. 2 entsprechend der Fig. 4 der Patentschrift des Hauptpatentes ausgebildet ist. Ebenso wie in den Figuren der Patentschrift des Hauptpatentes sind I die Einzelleiter des Gitterstabes, die infolge stärkerer Kröpfung der Einzelleiter an den Schmalseiten des Stabes einen Mittelraum freigeben, in dem sich drei Kühlkanäle 3 befinden, die durch die Distanzstücke 2' voneinander getrennt sind. Gegenüber den Distanzstücken sind die Einzelleiter durch die außen aufgelegten Leisten 4' nach innen gedrückt. Der ganze Stab ist dann von einer Isolierhülse 5 umschlossen. Die Distanzstücke 2' und die Leisten 4' sind nun aus unmagnetischem Metall (z. B. Messing) und hohl ausgebildet, so daß durch das Innere ebenfalls ein Kühlmittel hindurchgeschickt werden kann.The drawing shows two exemplary embodiments of the new arrangement, FIG. I of FIG. 3 corresponds to the specification of the main patent, while FIG. 2 is designed in accordance with FIG. 4 of the specification of the main patent is. As in the figures of the patent specification of the main patent, I are the individual conductors of the lattice bar, which is due to the stronger cranking of the individual conductors on the narrow sides of the rod release a central space in which there are three cooling channels 3, the are separated from each other by the spacers 2 '. Compared to the spacers the individual conductors are pressed inwards by the strips 4 'placed on the outside. The entire rod is then enclosed by an insulating sleeve 5. The spacers 2 'and the strips 4' are now made of non-magnetic metal (e.g. brass) and are hollow formed so that a coolant is also sent through the interior can be.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES38939A DE975389C (en) | 1954-05-01 | 1954-05-01 | Bars for electrical machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES38939A DE975389C (en) | 1954-05-01 | 1954-05-01 | Bars for electrical machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE975389C true DE975389C (en) | 1961-11-16 |
Family
ID=7483109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES38939A Expired DE975389C (en) | 1954-05-01 | 1954-05-01 | Bars for electrical machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE975389C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2473804A1 (en) * | 1979-12-06 | 1981-07-17 | Vp Izyskatelskij Ini Gidroproe | STATOR FOR ALTERNATOR |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE179091C (en) * | ||||
DE218903C (en) * | ||||
CH92265A (en) * | 1917-12-29 | 1921-12-16 | Michael Dr Seidner | Arrangement for cooling electrical machines. |
CH99387A (en) * | 1921-12-24 | 1923-05-16 | Oerlikon Maschf | Cooling device for slot windings in electrical machines. |
DE436886C (en) * | 1923-05-27 | 1926-11-09 | Siemens Schuckertwerke G M B H | Cooling device for the windings of electrical machines and apparatus, in which cooling ducts are formed by changes in cross-section in places in adjacent winding parts |
CH172839A (en) * | 1933-10-24 | 1934-10-31 | Oerlikon Maschf | Device for cooling electrical machines with windings located in slots. |
DE841304C (en) * | 1949-04-06 | 1952-06-13 | Siemens Ag | Runner for synchronous generators or motors with extremely high speed |
-
1954
- 1954-05-01 DE DES38939A patent/DE975389C/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE179091C (en) * | ||||
DE218903C (en) * | ||||
CH92265A (en) * | 1917-12-29 | 1921-12-16 | Michael Dr Seidner | Arrangement for cooling electrical machines. |
CH99387A (en) * | 1921-12-24 | 1923-05-16 | Oerlikon Maschf | Cooling device for slot windings in electrical machines. |
DE436886C (en) * | 1923-05-27 | 1926-11-09 | Siemens Schuckertwerke G M B H | Cooling device for the windings of electrical machines and apparatus, in which cooling ducts are formed by changes in cross-section in places in adjacent winding parts |
CH172839A (en) * | 1933-10-24 | 1934-10-31 | Oerlikon Maschf | Device for cooling electrical machines with windings located in slots. |
DE841304C (en) * | 1949-04-06 | 1952-06-13 | Siemens Ag | Runner for synchronous generators or motors with extremely high speed |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2473804A1 (en) * | 1979-12-06 | 1981-07-17 | Vp Izyskatelskij Ini Gidroproe | STATOR FOR ALTERNATOR |
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