DE626123C - Air-cooled stand for housing-less electrical machines - Google Patents
Air-cooled stand for housing-less electrical machinesInfo
- Publication number
- DE626123C DE626123C DES96401D DES0096401D DE626123C DE 626123 C DE626123 C DE 626123C DE S96401 D DES96401 D DE S96401D DE S0096401 D DES0096401 D DE S0096401D DE 626123 C DE626123 C DE 626123C
- Authority
- DE
- Germany
- Prior art keywords
- air
- housing
- electrical machines
- stator
- cooled
- 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
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Description
Die Steigerung der Leistung elektrischer Maschinen ist in hohem Grade abhängig von. der Beherrschung der Wärmeabfuhr. Zur Lösung dieser Aufgabe sind eine Reihe von Bauformen bekanntgeworden. Man hat beispielsweise zwischen einzelnen Ständerblechpaketen Ringscheiben angeordnet, welche die Wärme aus den Paketen in radialer Richtung abführen sollen. Dabei stehen die Ringscheiben ίο nur mit den benachbarten Blechen in unmittelbarer Berührung, von welchen die übrigen Bleche in bekannter Weise durch zwischen den einzelnen Blechen liegende Isolation getrennt sind. Diese Ringscheiben können niemals zur Stabilisierung bzw. Vereinigung des Ständerblechkörpers dienen, sondern es müssen zu diesem Zweck immer genügend ausreichende zusätzliche Mittel vorhanden sein". Bei anderen bekannten Ausführungen wird entweder das Blechpaket in ein Gehäuse eingesetzt, welches mit Rippen zur Erhöhung der Wärmeabfuhr versehen ist, oder man hat die einzelnen Ständerbleche mit Vorsprüngen versehen, die dann am fertigen Ständerblechpaket vorspringende Rippen bilden, um dadurch nach dem Einsetzen des Blechpaketes im Gehäuse Führungskanäle für die Kühlluft zu schaffen. Auch bei diesen Ausführungen wird noch keine genügende Kühlwirkung erzielt, denn die aufgespeicherte Wärme wird erst unter Zwischenschaltung eines das Blechpaket einschließenden, in dasselbe jedoch nicht eingreifenden Gehäuses an die Außenluft abgegeben bzw. die aus den. einzelnen Blechen abzuführende Wärme kann sich infolge der zwischen den Blechen vorhandenen Isolation nicht innerhalb der von den Blechpaketvorsprüngen gebildeten Rippen ausgleichen. Die Vereinigung und Stabilisierung des Blechpaketes erfolgt bei diesen Ausführungen durch das Gehäuse bzw. durch zusätzliche Preß- und Haltemittel.The increase in the performance of electrical machines is highly dependent on. the control of heat dissipation. To solve this problem are a number of Designs become known. You have, for example, between individual stator stacks Arranged annular disks, which are intended to dissipate the heat from the packets in the radial direction. The ring disks are there ίο only in direct contact with the neighboring sheets, of which the others Sheet metal separated in a known manner by insulation lying between the individual sheets are. These ring disks can never be used to stabilize or unite the laminated stator serve, but there must always be sufficient additional funds available for this purpose. "In the case of others known designs either the laminated core is used in a housing, which is provided with ribs to increase the heat dissipation, or you have the individual stator plates provided with projections, the ribs then protruding on the finished stator core form to thereby guide channels after the insertion of the laminated core in the housing to create for the cooling air. Even with these explanations, there is still no sufficient one A cooling effect is achieved, because the stored heat is only used with the interposition a housing enclosing the laminated core, but not engaging in the same the outside air released or that from the. heat to be dissipated from individual sheets due to the existing insulation between the sheets not within the compensate for the ribs formed by the lamination stack projections. The union and stabilization of the laminated core takes place in these designs through the housing or through additional Pressing and holding means.
Erfindungsgemäß wird die zulässige Leistung für luftgekühlte elektrische Maschinen dadurch wesentlich erhöht, daß an dem Rücken des nicht von einem Gehäuse zusammengehaltenen Ständerblechpaketes in den Blechkörper eingreifende, mit demselben fest verbundene Rippen, welche zur Kühlung und Stabilisierung dienen, aus anderem Material als das Ständerblechpaket, vorzugsweise aus die Wärme gut leitendem Material, angeordnet sind. Die Kühlrippen können durch Gießen, Spritzgießen oder Verkeilen mit dem Ständerblechpaket verbunden werden. Die innige Verbindung der Rippen mit den einzelnen Ständerblechen gewährleistet eine besonders günstige Wärmeabfuhr, ohne daß irgendwelche besondere Schwierigkeiten in der Herstellung entstehen. Insbesondere durch die Verwendung von gespritztem Material als Kühhippen wird eine sehr erhöhte Wärmeabfuhr erzielt, da sich durch den hohen Druck, mit welchem das Spritzmaterial in das Blechpaket eingespritzt wird, eine ganz innige Verbindung zwischen Kühlrippen und Blechpaket ergibt. Die Kühlrippen können so angeordnet sein, daß sie durch Einspritzen oder Eintreiben in offene profilierte Nuten das Blechpaket gleichzeitig zusammenhalten und strahlenförmig nach außen über den Umfang des Blechpaketes verteilt verlaufen. Ein Ausführungsbeispiel der Erfindung ist in der beiliegenden Zeichnung dargestellt.According to the invention, the permissible power for air-cooled electrical machines is thereby significantly increased that on the back of the stator core, which is not held together by a housing ribs that engage in the sheet metal body and are firmly connected to the same, which serve for cooling and stabilization, made of a different material than the stator core, preferably made of a good heat conductor Material, are arranged. The cooling fins can be made by casting, injection molding, or wedging be connected to the stator core. The intimate connection of the ribs with the individual stator plates ensures particularly favorable heat dissipation without any particular difficulties in manufacture arise. In particular through the Using sprayed material as a cooling stick will result in a very increased heat dissipation achieved, as the high pressure with which the spray material enters the laminated core is injected, a very intimate connection between the cooling fins and the laminated core results. The cooling fins can be arranged to be injected or driven in Hold the laminated core together in open profiled grooves at the same time and radiate outwards over the circumference of the laminated core run distributed. An embodiment of the invention is in the enclosed Drawing shown.
Der Ständerblechkörper α ist mit den über den Umfang desselben verteilten offenen Profilnuten δ versehen, in welche die nach außen strahlenförmig verlaufenden Kühlrippen c eingespritzt sind.The laminated stator body α is provided with the open profile grooves δ distributed over the circumference of the same, into which the radiating outward cooling fins c are injected.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES96401D DE626123C (en) | Air-cooled stand for housing-less electrical machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES96401D DE626123C (en) | Air-cooled stand for housing-less electrical machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE626123C true DE626123C (en) | 1936-02-20 |
Family
ID=7520029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES96401D Expired DE626123C (en) | Air-cooled stand for housing-less electrical machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE626123C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE872091C (en) * | 1939-03-03 | 1953-03-30 | Siemens Ag | Electric machine with a housing provided with cooling fins |
DE907910C (en) * | 1943-03-27 | 1954-03-29 | Siemens Ag | Housing with cooling ribs for electrical machines |
DE1073605B (en) * | 1960-01-21 | Societe des Moteurs Leroy, Angouleme (Frankreich) | Electric motor with housing shell cast onto the stator core | |
DE19636591C2 (en) * | 1996-09-10 | 1999-12-09 | Friedrich Klinger | Synchronous generator for a gearless wind energy converter |
US20140062227A1 (en) * | 2012-09-06 | 2014-03-06 | Siemens Industry, Inc. | Apparaus and method for induction motor heat transfer |
EP3796523A1 (en) * | 2019-09-19 | 2021-03-24 | Wobben Properties GmbH | Stator ring for an electric generator and electric generator comprising such a stator ring |
-
0
- DE DES96401D patent/DE626123C/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1073605B (en) * | 1960-01-21 | Societe des Moteurs Leroy, Angouleme (Frankreich) | Electric motor with housing shell cast onto the stator core | |
DE872091C (en) * | 1939-03-03 | 1953-03-30 | Siemens Ag | Electric machine with a housing provided with cooling fins |
DE907910C (en) * | 1943-03-27 | 1954-03-29 | Siemens Ag | Housing with cooling ribs for electrical machines |
DE19636591C2 (en) * | 1996-09-10 | 1999-12-09 | Friedrich Klinger | Synchronous generator for a gearless wind energy converter |
US20140062227A1 (en) * | 2012-09-06 | 2014-03-06 | Siemens Industry, Inc. | Apparaus and method for induction motor heat transfer |
US9520755B2 (en) * | 2012-09-06 | 2016-12-13 | Siemens Industry, Inc. | Apparatus and method for induction motor heat transfer |
EP3796523A1 (en) * | 2019-09-19 | 2021-03-24 | Wobben Properties GmbH | Stator ring for an electric generator and electric generator comprising such a stator ring |
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