DE102017112835A1 - Electric machine, motor vehicle and method for producing an electrical machine - Google Patents
Electric machine, motor vehicle and method for producing an electrical machine Download PDFInfo
- Publication number
- DE102017112835A1 DE102017112835A1 DE102017112835.2A DE102017112835A DE102017112835A1 DE 102017112835 A1 DE102017112835 A1 DE 102017112835A1 DE 102017112835 A DE102017112835 A DE 102017112835A DE 102017112835 A1 DE102017112835 A1 DE 102017112835A1
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- electric machine
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 18
- 239000000498 cooling water Substances 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 238000010894 electron beam technology Methods 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 238000001652 electrophoretic deposition Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000011344 liquid material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims 1
- 238000000110 selective laser sintering Methods 0.000 claims 1
- 238000013459 approach Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Die Erfindung stellt eine elektrische Maschine mit den folgenden Merkmalen bereit: Die Maschine umfasst eine Rotorwelle (10) und einen Stator, und die Rotorwelle (10) weist oberflächennahe Kühlstrukturen (11) auf.
Die Erfindung stellt ferner ein entsprechendes Kraftfahrzeug sowie ein entsprechendes Herstellungsverfahren bereit.
The invention provides an electric machine having the following features: The machine comprises a rotor shaft (10) and a stator, and the rotor shaft (10) has near-surface cooling structures (11).
The invention further provides a corresponding motor vehicle and a corresponding manufacturing method.
Description
Die vorliegende Erfindung betrifft eine elektrische Maschine. Die vorliegende Erfindung betrifft darüber hinaus ein entsprechendes Kraftfahrzeug sowie ein entsprechendes Herstellungsverfahren.The present invention relates to an electric machine. The present invention also relates to a corresponding motor vehicle and to a corresponding production method.
Stand der TechnikState of the art
Die Erwärmung spielt bei der Bemessung elektrischer Maschinen und insbesondere Motoren eine entscheidende Rolle, da eine gute Ausnutzung der zulässigen Betriebstemperatur die Maschinenleistung steigert. Die im Motor entstehende Verlustwärme wird daher gewöhnlich durch Kühlung nach außen abgeführt. Je wirkungsvoller die Kühlung ausgelegt ist, desto kleiner kann somit der Motor bei gleicher Leistung gebaut werden bzw. umso mehr Leistung kann ein Motor gleicher Bauart abgeben.Heating plays a decisive role in the dimensioning of electrical machines and in particular motors, as a good utilization of the permissible operating temperature increases the machine output. The resulting heat loss in the engine is therefore usually dissipated by cooling to the outside. The more effective the cooling is designed, the smaller the engine can be built for the same performance, or the more power can be delivered by a motor of the same design.
Bekannt ist insbesondere die Selbstkühlung, bei der die Maschine ohne Verwendung eines Lüfters durch Luftbewegung und Strahlung gekühlt wird. Bei der sogenannten Eigenkühlung hingegen wird die Luft durch einen Lüfter bewegt, den die Rotorwelle der Maschine selbst antreibt. Eine dritte Option schließlich stellt die sogenannte Fremdkühlung dar, bei welcher die Luft durch einen extern angetriebenen Lüfter bewegt oder ein anderweitiges fremdbewegtes Kühlmittel genutzt wird.In particular, the self-cooling is known, in which the machine is cooled by using air movement and radiation without the use of a fan. In the so-called self-cooling, however, the air is moved by a fan that drives the rotor shaft of the machine itself. Finally, a third option is the so-called forced cooling, in which the air is moved by an externally driven fan or otherwise used foreign coolant is used.
Angesichts ihres meist großen nutzbaren Drehzahlbereiches kommt bei mobilen elektrischen Maschinen, insbesondere im Triebstrang von Elektroautos (battery electric vehicle, BEV), nach dem Stand der Technik regelmäßig eine Fremdkühlung zum Einsatz, um die Kühlleistung drehzahlunabhängig regeln zu können.In view of their usually large usable speed range comes in mobile electric machines, especially in the drivetrain of electric cars (battery electric vehicle, BEV), according to the prior art regularly used a foreign cooling to control the cooling capacity independent of speed.
Offenbarung der ErfindungDisclosure of the invention
Die Erfindung stellt eine elektrische Maschine, ein entsprechendes Kraftfahrzeug sowie ein entsprechendes Herstellungsverfahren gemäß den unabhängigen Ansprüchen bereit.The invention provides an electric machine, a corresponding motor vehicle and a corresponding manufacturing method according to the independent claims.
Ein Vorzug dieser Lösung liegt in ihrem innovativen Motorkühlkonzept, das sich durch oberflächennahe, hochintegrierte Kühlstrukturen in der Rotorwelle auszeichnet.An advantage of this solution lies in its innovative engine cooling concept, which is characterized by near-surface, highly integrated cooling structures in the rotor shaft.
Ein Vorteil des damit verbundenen Herstellungsprozesses besteht in seiner besonderen Eignung für Kleinserienanwendungen mit hohem Anspruch an Leichtbau und Funktionsintegration. Obgleich als Urformverfahren einzuordnen, erfordert das erfindungsgemäße Fertigungsverfahren keinerlei Gussform oder anderweitiges Werkzeug, das die Geometrie der Kühlstrukturen speichern würde. Die Fertigung kann vielmehr unmittelbar auf der Basis von CAD-Datenmodellen etwa der Kühlwasser- oder Ölleitungen aus formlosem oder formneutralem Werkstoff mittels chemischer oder physikalischer Prozesse erfolgen. Das vorgeschlagene Verfahren empfiehlt sich somit nicht nur zur Kleinserienfertigung oder Einzelfertigung elektrischer Maschinen mit Einzelkomponenten von hoher geometrischer Komplexität, sondern auch zur parallelen Fertigung dieser Komponenten in größeren Stückzahlen.An advantage of the associated manufacturing process is its particular suitability for small series applications with high demands on lightweight construction and functional integration. Although classified as a primary molding process, the manufacturing process of the invention does not require any mold or other tool that would store the geometry of the cooling structures. On the contrary, the production can take place directly on the basis of CAD data models, for example, of the cooling water or oil lines of shapeless or form-neutral material by means of chemical or physical processes. The proposed method is thus recommended not only for small batch production or single production of electrical machines with individual components of high geometric complexity, but also for parallel production of these components in larger quantities.
Im Gegensatz zu herkömmlichen Urform-, Umform- oder Trennverfahren erhöht sich die Wirtschaftlichkeit einer erfindungsgemäß hergestellten Maschine daher mit steigender Komplexität der Geometrie ihrer Kühlstrukturen. Die digitale Schnittstelle einschlägiger Fertigungsmaschinen und deren hoher Automatisierungsgrad ermöglichen dabei auch eine dezentrale, geografisch unabhängig verteilte Produktion von Motoren (cloud producing).In contrast to conventional primary shaping, forming or separating methods, the economic efficiency of a machine produced according to the invention therefore increases with increasing complexity of the geometry of its cooling structures. The digital interface of relevant production machines and their high degree of automation also enable a decentralized, geographically independent distributed production of engines (cloud producing).
Schließlich trägt der generative Ansatz des erörterten Verfahrens gerade in der Fahrzeugtechnik dazu bei, die durch Werkzeugbereitstellung und -pflege verursachten Lebenszykluskosten der jeweiligen Baureihe zu minimieren.Finally, the generative approach of the discussed method, especially in vehicle technology, contributes to minimizing the life cycle costs of the respective series caused by tool provisioning and maintenance.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Patentansprüchen angegeben.Further advantageous embodiments of the invention are specified in the dependent claims.
Figurenliste list of figures
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben.
-
1 zeigt eine perspektivische Ansicht oberflächennaher Kühlstrukturen in einer Rotorwelle. -
2 zeigt aus einer mit1 übereinstimmenden Perspektive den hochintegrierten Verlauf der Kühlwasser- und Ölleitungen.
-
1 shows a perspective view of near-surface cooling structures in a rotor shaft. -
2 shows from one with1 consistent perspective the highly integrated course of cooling water and oil lines.
Ausführungsformen der ErfindungEmbodiments of the invention
Wie
Der hohe Integrationsgrad, den die
Einschlägige Verfahren werden beispielsweise in den Richtlinien VDI 3404 und VDI 3405 dargestellt und umfassen selektives Laserschmelzen (SLM), Lasersintern (SLS) oder Wärmesintern (selective heat sintering, SHS) ebenso wie das Verfestigen von Pulverwerkstoffen mittels eines Binders (binder jetting) oder das sogenannte Elektronenstrahlschmelzen (electron beam melting, EBM). In Betracht kommen auch Schmelzschichten (fused deposition modeling, FDM), Auftragschweißen (cladding), das Aufschmelzen und schichtweise Auftragen von Wachs (wax deposition modeling, WDM), diverse Metallpulver-Auftragsverfahren (MPA), Kaltgasspritzen oder Elektronenstrahlschmelzen (electron beam welding, EBW). Zu denken ist schließlich an Stereolithografie (SLA), digitale Lichtverarbeitung (digital light processing, DLP), Flüssigimprägnierung (liquid composite moulding, LCM) oder anderweitige Schichtbauverfahren wie laminierte Objektherstellung (laminated object modeling, LOM), dreidimensionalen metallischen Siebdruck (3D screen printing) oder lichtgesteuerte elektrophoretische Abscheidung.Relevant methods are described, for example, in the guidelines VDI 3404 and VDI 3405 and include selective laser melting (SLM), laser sintering (SLS) or selective heat sintering (SHS) as well as the solidification of powder materials by means of a binder (binder jetting) or the so-called Electron beam melting (EBM). Also suitable are melt layers (fused deposition modeling, FDM), cladding, the melting and layer-wise application of wax (WDM), various metal powder application methods (MPA), cold gas spraying or electron beam welding (EBW) ). Last but not least, stereolithography (SLA), digital light processing (DLP), liquid composite molding (LCM) or other laminating techniques such as laminated object modeling (LOM), three-dimensional metallic screen printing or light-controlled electrophoretic deposition.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 3006743 A1 [0005]EP 3006743 A1 [0005]
- US 2016352201 A1 [0006]US 2016352201 A1 [0006]
- US 6866478 B2 [0007]US 6866478 B2 [0007]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017112835.2A DE102017112835A1 (en) | 2017-06-12 | 2017-06-12 | Electric machine, motor vehicle and method for producing an electrical machine |
Applications Claiming Priority (1)
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DE102017112835.2A DE102017112835A1 (en) | 2017-06-12 | 2017-06-12 | Electric machine, motor vehicle and method for producing an electrical machine |
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DE102017112835A1 true DE102017112835A1 (en) | 2018-12-13 |
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DE102017112835.2A Pending DE102017112835A1 (en) | 2017-06-12 | 2017-06-12 | Electric machine, motor vehicle and method for producing an electrical machine |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018121203A1 (en) * | 2018-08-30 | 2020-03-05 | Thyssenkrupp Ag | Cooling device, motor housing and motor unit |
DE102019211523A1 (en) * | 2019-08-01 | 2021-02-04 | Zf Friedrichshafen Ag | Cooling fluid guide arrangement for cooling a rotor of an electrical machine |
DE102019211555A1 (en) * | 2019-08-01 | 2021-02-04 | Zf Friedrichshafen Ag | Cooling fluid guide arrangement for cooling a rotor of an electrical machine |
DE102019121651A1 (en) * | 2019-08-12 | 2021-02-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for a motor vehicle and method for manufacturing a cooling device |
WO2021219475A1 (en) * | 2020-04-30 | 2021-11-04 | Siemens Mobility GmbH | Electric machine and method for producing same |
EP3799264B1 (en) | 2019-09-30 | 2023-04-19 | Siemens Aktiengesellschaft | Drive shaft of dynamo-electric machine |
EP4198432A1 (en) * | 2021-12-17 | 2023-06-21 | Valeo eAutomotive Germany GmbH | A heat exchanger of an electric module |
WO2024027988A1 (en) * | 2022-08-03 | 2024-02-08 | Robert Bosch Gmbh | Electric machine |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6866478B2 (en) | 2002-05-14 | 2005-03-15 | The Board Of Trustees Of The Leland Stanford Junior University | Miniature gas turbine engine with unitary rotor shaft for power generation |
EP2110931A2 (en) * | 2008-04-18 | 2009-10-21 | ABB Oy | Cooling element for an electrical machine |
DE102009051114A1 (en) * | 2009-10-28 | 2011-05-05 | Siemens Aktiengesellschaft | Electric machine |
US20120286596A1 (en) * | 2011-05-10 | 2012-11-15 | Remy Technologies, Llc | Cooling Combinations for Electric Machines |
EP2720351A1 (en) * | 2012-10-12 | 2014-04-16 | Siemens Aktiengesellschaft | Device for cooling a component of an electric machine by means of multiple cooling paths |
DE102012022453A1 (en) * | 2012-11-09 | 2014-05-15 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Electrical machine for use in hybrid drive strand of motor vehicle, has rotor with driveshaft, where rotor is turnably mounted concerning to machine housing, and driveshaft has shaft channel through which cooling fluid is conductable |
EP3006743A2 (en) | 2014-10-11 | 2016-04-13 | Regal Beloit America, Inc. | Fan and method of cooling a motor |
WO2016113184A1 (en) * | 2015-01-14 | 2016-07-21 | Siemens Aktiengesellschaft | A generator rotor for an electric generator and a method for construction thereof |
US20160352201A1 (en) | 2015-05-27 | 2016-12-01 | Hamilton Sundstrand Corporation | Integrated heat dissipative structure for electric machine |
-
2017
- 2017-06-12 DE DE102017112835.2A patent/DE102017112835A1/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6866478B2 (en) | 2002-05-14 | 2005-03-15 | The Board Of Trustees Of The Leland Stanford Junior University | Miniature gas turbine engine with unitary rotor shaft for power generation |
EP2110931A2 (en) * | 2008-04-18 | 2009-10-21 | ABB Oy | Cooling element for an electrical machine |
DE102009051114A1 (en) * | 2009-10-28 | 2011-05-05 | Siemens Aktiengesellschaft | Electric machine |
US20120286596A1 (en) * | 2011-05-10 | 2012-11-15 | Remy Technologies, Llc | Cooling Combinations for Electric Machines |
EP2720351A1 (en) * | 2012-10-12 | 2014-04-16 | Siemens Aktiengesellschaft | Device for cooling a component of an electric machine by means of multiple cooling paths |
DE102012022453A1 (en) * | 2012-11-09 | 2014-05-15 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Electrical machine for use in hybrid drive strand of motor vehicle, has rotor with driveshaft, where rotor is turnably mounted concerning to machine housing, and driveshaft has shaft channel through which cooling fluid is conductable |
EP3006743A2 (en) | 2014-10-11 | 2016-04-13 | Regal Beloit America, Inc. | Fan and method of cooling a motor |
WO2016113184A1 (en) * | 2015-01-14 | 2016-07-21 | Siemens Aktiengesellschaft | A generator rotor for an electric generator and a method for construction thereof |
US20160352201A1 (en) | 2015-05-27 | 2016-12-01 | Hamilton Sundstrand Corporation | Integrated heat dissipative structure for electric machine |
Non-Patent Citations (1)
Title |
---|
Generatives Fertigungsverfahren. In: Wikipedia, Die freie Enzyklopädie. Bearbeitungsstand: 9. März 2017, 20:15 UTC. URL: http://de.wikipedia.org/w/index.php [abgerufen am 05.03.2018] * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018121203A1 (en) * | 2018-08-30 | 2020-03-05 | Thyssenkrupp Ag | Cooling device, motor housing and motor unit |
DE102019211523A1 (en) * | 2019-08-01 | 2021-02-04 | Zf Friedrichshafen Ag | Cooling fluid guide arrangement for cooling a rotor of an electrical machine |
DE102019211555A1 (en) * | 2019-08-01 | 2021-02-04 | Zf Friedrichshafen Ag | Cooling fluid guide arrangement for cooling a rotor of an electrical machine |
DE102019121651A1 (en) * | 2019-08-12 | 2021-02-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for a motor vehicle and method for manufacturing a cooling device |
DE102019121651B4 (en) * | 2019-08-12 | 2021-05-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Cooling device for a motor vehicle and method for producing a cooling device |
EP3799264B1 (en) | 2019-09-30 | 2023-04-19 | Siemens Aktiengesellschaft | Drive shaft of dynamo-electric machine |
WO2021219475A1 (en) * | 2020-04-30 | 2021-11-04 | Siemens Mobility GmbH | Electric machine and method for producing same |
EP4198432A1 (en) * | 2021-12-17 | 2023-06-21 | Valeo eAutomotive Germany GmbH | A heat exchanger of an electric module |
WO2024027988A1 (en) * | 2022-08-03 | 2024-02-08 | Robert Bosch Gmbh | Electric machine |
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