DE2145126A1 - ELECTRIC MACHINE WITH OIL SPRAY COOLING - Google Patents
ELECTRIC MACHINE WITH OIL SPRAY COOLINGInfo
- Publication number
- DE2145126A1 DE2145126A1 DE2145126A DE2145126A DE2145126A1 DE 2145126 A1 DE2145126 A1 DE 2145126A1 DE 2145126 A DE2145126 A DE 2145126A DE 2145126 A DE2145126 A DE 2145126A DE 2145126 A1 DE2145126 A1 DE 2145126A1
- Authority
- DE
- Germany
- Prior art keywords
- cooling
- machine
- openings
- oil
- electric machine
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Description
Elektrische Maschine mit Ölsprühkühlung Bei elektrischen Maschinen mit Ölsprühkühlung sind zur Kühlung des Rotors und des Stators wenigstens vier Kühlkreise vorgesehen, was verhältnismäßig aufwendig ist. Die Erfindung bezweckt eine Vereinfachung einer solchen Kühlung bei gleichem Kühleffekt und erreicht dies dadurch, daß auf jeder Seite der Maschine im Innern derselben Je ein Kühlkreis mit derart angeordneten Sprühöffnungen vorgesehen ist, daß das durch diese Öffnungen austretende Kühlmittel sowohl den Stator bzw. dessen Wickelköpfe als auch den Rotor besprüht. Es sind also bei der erfindungsgemäßen Ausführung nur noch zwei Kühlkreise notwendig, die zweckmäßig als ringförmig gebogene Rohre ausgebildet und zwischen den Lagerschilden und dem Rotor bzw. Stator der Maschine angeordnet sind. Ein weiterer Erfindungsgedanke besteht darin, zusätzliche Sprühöffnungen in den Kühlkreisen vorzusehen, die die Wellenlager mit Kühlöl versehen, so daß die Lager einerseits ebenfalls gekühlt und andererseits gleichzeitig geschmiert werden.Electric machine with oil spray cooling For electric machines with oil spray cooling, there are at least four cooling circuits for cooling the rotor and the stator provided, which is relatively expensive. The invention aims at simplification such a cooling with the same cooling effect and achieves this in that on each side of the machine inside the same one each with a cooling circuit arranged in this way Spray openings is provided that the coolant exiting through these openings sprayed both the stator or its end windings and the rotor. So there are In the embodiment according to the invention, only two cooling circuits are necessary, which are expedient designed as a ring-shaped bent tubes and between the end shields and the Rotor or stator of the machine are arranged. Another inventive idea exists in providing additional spray holes in the cooling circuits that support the shaft bearings provided with cooling oil, so that the bearings on the one hand also cooled and on the other hand be lubricated at the same time.
Ein AusfAhrungsbeispiel der Erfindung ist an Hand der Zeichnung im folgenden beschrieben.An AusfAhrungsbeispiel the invention is based on the drawing in described below.
Mit 1 sind der Stator, mit 2 der Rotor und mit 7 die Welle der Maschine bezeichnet. 4 ist das Motorgehäuse und 5 und 6 sind die Lagerschilde, welche die Wellenlager 7 tragen. Gemäß der Erfindung ist auf beiden Seiten der Maschine zwischen den Lagerschilden und dem Rotor Je ein Kühlkreis in Form eines ringförmig gebogenen Rohres 8 vorgesehen. Diesem Rohr 8 wird über ein Eintrittsrohr 9 das Kühlmittel zugeführt. Im Rohr 8 sind Bohrungen 10 so eingebracht, daß das Kühlmittel auf den Stator 1 bzw. dessen Wickelköpfe 11 gesprüht wird. Durch weitere Bohrungen 12 gelangt das Kühlmittel auf den Rotor 2 und dessen Kurzschlußringe. Statt eines Käfigläufers kann selbstverständlich auch ein Läufer mit normaler Wicklung vorgesehen sein.With 1 the stator, with 2 the rotor and with 7 the shaft of the machine designated. 4 is the motor housing and 5 and 6 are the end shields, which are the Bear shaft bearing 7. According to the invention is on both sides of the machine between the end shields and the rotor each have a cooling circuit in the form of a ring-shaped bent Tube 8 is provided. The coolant is supplied to this pipe 8 via an inlet pipe 9 fed. In the tube 8 holes 10 are made so that the coolant is sprayed onto the stator 1 or its end windings 11. Through further drilling 12 the coolant reaches the rotor 2 and its short-circuit rings. Instead of one A cage rotor can of course also be provided with a rotor with a normal winding be.
In den Kühlrohren 8 befinden sich neben den Bohrungen 10 und 12 weitere Öffnungen 13, die gegen Öffnungen 14 gerichtet sind, welche in einem das Lager 7 umgebenden Gehäuse bzw.In addition to the bores 10 and 12, there are further bores in the cooling tubes 8 Openings 13, which are directed towards openings 14, which in a bearing 7 surrounding housing or
einem Abschlußdeckel 15 eingebracht sind. Auf diese Weise gelangt das Kühlöl auch in die Lager 7, die somit ebenfalls gekühlt und gleichzeitig geschmiert werden. Die Bohrungen 13 sind nur im oberen Maschinenteil angeordnet, desgleichen die Öffnungen 14 im Lagergehäuse 15. Das Öl im Lager fließt im unteren Maschinenteil über eine Abflußöffnung 16 aus dem Lagergehäuse in das Maschineninnere. Das Motorgehäuse 4 weist im unteren Teil Abflußrohre 17 auf, durch die das im Motorraum befindliche Öl abfließen kann.a cover plate 15 are introduced. Got this way the cooling oil also in the bearings 7, which are thus also cooled and lubricated at the same time will. The bores 13 are only arranged in the upper machine part, the same the openings 14 in the bearing housing 15. The oil in the bearing flows in the lower part of the machine via a drain opening 16 from the bearing housing into the interior of the machine. The motor housing 4 has drainage pipes 17 in the lower part, through which the located in the engine compartment Oil can drain off.
Das ausführungsbeispiel läßt erkennen, daß durch die erfindungsgemäße Ausbildung in einfacher Weise eine intensive Kühlung der gesamten Maschine bei gleichzeitiger Versorgung der Lager mit Schmiermittel stattfindet.The exemplary embodiment shows that the inventive Training in a simple way an intensive cooling of the entire machine with simultaneous Supply of the bearings with lubricant takes place.
1 Figur 4 Ansprüche1 Figure 4 claims
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2145126A DE2145126A1 (en) | 1971-09-09 | 1971-09-09 | ELECTRIC MACHINE WITH OIL SPRAY COOLING |
JP47090288A JPS4836606A (en) | 1971-09-09 | 1972-09-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2145126A DE2145126A1 (en) | 1971-09-09 | 1971-09-09 | ELECTRIC MACHINE WITH OIL SPRAY COOLING |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2145126A1 true DE2145126A1 (en) | 1973-03-22 |
Family
ID=5819110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2145126A Pending DE2145126A1 (en) | 1971-09-09 | 1971-09-09 | ELECTRIC MACHINE WITH OIL SPRAY COOLING |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS4836606A (en) |
DE (1) | DE2145126A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4959570A (en) * | 1987-07-09 | 1990-09-25 | Fanuc Ltd. | Motor cooling system |
DE4407713C1 (en) * | 1994-03-08 | 1995-04-13 | Gruendl & Hoffmann | Brushless electric motor and a method for its operation |
DE4411055A1 (en) * | 1994-02-08 | 1995-08-10 | Baumueller Nuernberg Gmbh | Three phase electric motor |
DE19627323A1 (en) * | 1996-06-26 | 1998-01-02 | Siemens Ag | Ship drive with synchronous motor to be arranged in a gondola |
US5770904A (en) * | 1994-03-08 | 1998-06-23 | Grundl Und Hoffman Gmbh Gesellschaft Fur Elektrotechnische Entwicklungen | Electric motor |
DE102006044498B4 (en) * | 2005-09-22 | 2014-11-27 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Stator cooling system for a hybrid transmission |
WO2016159862A1 (en) * | 2015-04-02 | 2016-10-06 | BAE Systems Hägglunds Aktiebolag | Device and method for liquid cooling of an electric motor |
EP2736152A4 (en) * | 2011-07-21 | 2016-10-26 | Daikin Ind Ltd | Electric motor and turbo compressor |
WO2016178615A1 (en) * | 2015-05-07 | 2016-11-10 | BAE Systems Hägglunds Aktiebolag | Method and system for cooling of an electric motor |
FR3043509A1 (en) * | 2015-11-10 | 2017-05-12 | Renault Sas | OIL COOLING OF AN ELECTRIC MOTOR WITH ROTOR COIL. |
FR3060900A1 (en) * | 2016-12-20 | 2018-06-22 | Valeo Equipements Electriques Moteur | ROTATING ELECTRIC MACHINE HAVING AN ELECTRIC INSULATION BETWEEN A THERMAL DISSIPATOR AND A BEARING |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011166957A (en) * | 2010-02-10 | 2011-08-25 | Nsk Ltd | Motor cooling structure and in-wheel motor |
JP2015226376A (en) * | 2014-05-28 | 2015-12-14 | 株式会社日立製作所 | Axial gap motor |
-
1971
- 1971-09-09 DE DE2145126A patent/DE2145126A1/en active Pending
-
1972
- 1972-09-08 JP JP47090288A patent/JPS4836606A/ja active Pending
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4959570A (en) * | 1987-07-09 | 1990-09-25 | Fanuc Ltd. | Motor cooling system |
DE4411055A1 (en) * | 1994-02-08 | 1995-08-10 | Baumueller Nuernberg Gmbh | Three phase electric motor |
DE4407713C1 (en) * | 1994-03-08 | 1995-04-13 | Gruendl & Hoffmann | Brushless electric motor and a method for its operation |
WO1995024762A1 (en) | 1994-03-08 | 1995-09-14 | Gründl und Hoffmann GmbH Gesellschaft für elektrotechnische Entwicklungen | Brushless electric motor and method of operating the same |
US5698912A (en) * | 1994-03-08 | 1997-12-16 | Grundl Und Hoffmann Gmbh Gesellschaft Fur Elektrotechnishe | Brushless motor with torque and speed proportional coolant flow |
US5770904A (en) * | 1994-03-08 | 1998-06-23 | Grundl Und Hoffman Gmbh Gesellschaft Fur Elektrotechnische Entwicklungen | Electric motor |
DE19627323A1 (en) * | 1996-06-26 | 1998-01-02 | Siemens Ag | Ship drive with synchronous motor to be arranged in a gondola |
DE102006044498B4 (en) * | 2005-09-22 | 2014-11-27 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Stator cooling system for a hybrid transmission |
EP2736152A4 (en) * | 2011-07-21 | 2016-10-26 | Daikin Ind Ltd | Electric motor and turbo compressor |
WO2016159862A1 (en) * | 2015-04-02 | 2016-10-06 | BAE Systems Hägglunds Aktiebolag | Device and method for liquid cooling of an electric motor |
WO2016178615A1 (en) * | 2015-05-07 | 2016-11-10 | BAE Systems Hägglunds Aktiebolag | Method and system for cooling of an electric motor |
FR3043509A1 (en) * | 2015-11-10 | 2017-05-12 | Renault Sas | OIL COOLING OF AN ELECTRIC MOTOR WITH ROTOR COIL. |
FR3060900A1 (en) * | 2016-12-20 | 2018-06-22 | Valeo Equipements Electriques Moteur | ROTATING ELECTRIC MACHINE HAVING AN ELECTRIC INSULATION BETWEEN A THERMAL DISSIPATOR AND A BEARING |
WO2018115679A1 (en) * | 2016-12-20 | 2018-06-28 | Valeo Equipements Electriques Moteur | Rotating electrical machine provided with an electrical insulator between a heat sink and a bearing |
CN110168873A (en) * | 2016-12-20 | 2019-08-23 | 法雷奥电机设备公司 | In the heat sink rotating electric machine for being provided with electrical insulator between supporting member |
CN110168873B (en) * | 2016-12-20 | 2021-05-25 | 法雷奥电机设备公司 | Rotary electric machine with electrical insulation between heat sink and support |
Also Published As
Publication number | Publication date |
---|---|
JPS4836606A (en) | 1973-05-30 |
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