AT524997A5 - Electric machine with a hollow rotor shaft - Google Patents

Electric machine with a hollow rotor shaft Download PDF

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Publication number
AT524997A5
AT524997A5 ATA9165/2017A AT91652017A AT524997A5 AT 524997 A5 AT524997 A5 AT 524997A5 AT 91652017 A AT91652017 A AT 91652017A AT 524997 A5 AT524997 A5 AT 524997A5
Authority
AT
Austria
Prior art keywords
rotor shaft
channel
housing
cooling fluid
stator
Prior art date
Application number
ATA9165/2017A
Other languages
German (de)
Other versions
AT524997B1 (en
Inventor
Voigt Matthias
Krebs Jörg
Original Assignee
Krebs & Aulich Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Krebs & Aulich Gmbh filed Critical Krebs & Aulich Gmbh
Publication of AT524997A5 publication Critical patent/AT524997A5/en
Application granted granted Critical
Publication of AT524997B1 publication Critical patent/AT524997B1/en

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
    • H02K1/22—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
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Die Erfindung betrifft eine Elektromaschine (1), ausgebildet als Motor und/oder als Generator, aufweisend ein Gehäuse (2), einen mit dem Gehäuse (2) drehfest verbundenen Stator (3), sowie eine koaxial und radial innerhalb des Stators (3) ange­ordnete Rotorwelle (5), bei welcher der Stator (3) und die Rotorwelle (5) elektromag­netisch wirksame Komponenten (4; 6) tragen, zwischen denen ein hohlzylindrischer Luftspalt (7) ausgebildet ist, bei welcher die Rotorwelle (5) einen zylindrischen Innen­ raum (8) aufweist, der an seinen beiden axialen Enden verschlossen ist, bei welcher die Rotorwelle (5) zur Einleitung eines Kühlfluids in deren Innenraum (8) wenigstens einen radial ausgerichteten Einströmkanal (20a, 20c) sowie zur Ausleitung des Kühlfluids wenigstens einen radial ausgerichteten Ausströmkanal (21a, 21c) aufweist, und bei welcher das Kühlfluid über wenigstens einen Einlasskanal (13) im Gehäuse (2) zur Rotorwelle (5) hin und über wenigstens einen Auslasskanal (14) im Gehäuse (2) von dieser weg leitbar ist. Zur Optimierung der Einströmung und/oder der Aus­strömung des Kühlfluids in beziehungsweise aus der Rotorwelle (5) heraus ist gemäß der Erfindung vorgesehen, dass wenigstens ein Einströmkanal (20a, 20c) und/oder wenigstens ein Ausströmkanal (21a 21c) die Wandung der Rotorwelle (5) unter einem Anstellwinkel (a, d , c2) radial und schräg durchsetzt.The invention relates to an electric machine (1), designed as a motor and/or as a generator, having a housing (2), a stator (3) which is non-rotatably connected to the housing (2), and a coaxial and radial inside of the stator (3) arranged rotor shaft (5), in which the stator (3) and the rotor shaft (5) carry electromagnetically active components (4; 6), between which a hollow-cylindrical air gap (7) is formed, in which the rotor shaft (5) has a cylindrical interior chamber (8) which is closed at both of its axial ends, in which the rotor shaft (5) has at least one radially aligned inflow channel (20a, 20c) for introducing a cooling fluid into its interior (8) and at least one radially directed outlet for the cooling fluid aligned outflow channel (21a, 21c), and in which the cooling fluid via at least one inlet channel (13) in the housing (2) to the rotor shaft (5) and via at least one outlet channel (14) in the housing (2) from this way is guidable. In order to optimize the inflow and/or outflow of the cooling fluid into or out of the rotor shaft (5), the invention provides that at least one inflow channel (20a, 20c) and/or at least one outflow channel (21a 21c) cover the wall of the rotor shaft ( 5) interspersed radially and obliquely at an angle of attack (a, d , c2).

ATA9165/2017A 2016-06-16 2017-05-17 Electric machine with a hollow rotor shaft AT524997B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016007328.4A DE102016007328B4 (en) 2016-06-16 2016-06-16 Electric machine with a hollow rotor shaft
PCT/DE2017/000136 WO2017215686A1 (en) 2016-06-16 2017-05-17 Electric machine having a hollow rotor shaft

Publications (2)

Publication Number Publication Date
AT524997A5 true AT524997A5 (en) 2022-10-15
AT524997B1 AT524997B1 (en) 2022-12-15

Family

ID=59276470

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA9165/2017A AT524997B1 (en) 2016-06-16 2017-05-17 Electric machine with a hollow rotor shaft

Country Status (4)

Country Link
AT (1) AT524997B1 (en)
DE (1) DE102016007328B4 (en)
GB (1) GB2565258B (en)
WO (1) WO2017215686A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018216120A1 (en) * 2018-09-21 2020-03-26 Conti Temic Microelectronic Gmbh Rotor shaft arrangement for an electrical machine
US20220320948A1 (en) * 2021-03-30 2022-10-06 Metal Forming & Coining Corporation Rotor shaft
DE102021212153B4 (en) * 2021-10-27 2023-06-07 Mahle International Gmbh electrical machine
CN115313709B (en) * 2022-09-29 2023-01-06 中国核动力研究设计院 Stator structure, motor and turbine unit
CN115514119B (en) * 2022-10-19 2024-01-23 中国核动力研究设计院 Porous stator structure in supercritical carbon dioxide power generation system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1398157A (en) * 1971-09-21 1975-06-18 Westinghouse Electric Corp Dynamoelectric machines having liquid cooled rotors
JP2006320083A (en) * 2005-05-11 2006-11-24 Toyota Motor Corp Motor
KR20140073005A (en) * 2012-12-05 2014-06-16 한국생산기술연구원 self water cooling motor
US20160164377A1 (en) * 2014-12-04 2016-06-09 Atieva, Inc. Motor Cooling System

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2033058A (en) * 1933-10-26 1936-03-03 Allis Chalmers Mfg Co Dynamo-electric machine ventilation
US9985501B2 (en) * 2013-08-16 2018-05-29 Hamilton Sundstrand Corporation Generators with open loop active cooling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1398157A (en) * 1971-09-21 1975-06-18 Westinghouse Electric Corp Dynamoelectric machines having liquid cooled rotors
JP2006320083A (en) * 2005-05-11 2006-11-24 Toyota Motor Corp Motor
KR20140073005A (en) * 2012-12-05 2014-06-16 한국생산기술연구원 self water cooling motor
US20160164377A1 (en) * 2014-12-04 2016-06-09 Atieva, Inc. Motor Cooling System

Also Published As

Publication number Publication date
GB2565258B (en) 2022-08-17
WO2017215686A1 (en) 2017-12-21
DE102016007328A1 (en) 2017-12-21
DE102016007328B4 (en) 2022-08-04
GB2565258A9 (en) 2022-02-23
GB201819371D0 (en) 2019-01-09
GB2565258A (en) 2019-02-06
AT524997B1 (en) 2022-12-15

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