GB2565258A9 - Electric machine having a hollow rotor shaft - Google Patents

Electric machine having a hollow rotor shaft Download PDF

Info

Publication number
GB2565258A9
GB2565258A9 GB1819371.4A GB201819371A GB2565258A9 GB 2565258 A9 GB2565258 A9 GB 2565258A9 GB 201819371 A GB201819371 A GB 201819371A GB 2565258 A9 GB2565258 A9 GB 2565258A9
Authority
GB
United Kingdom
Prior art keywords
rotor shaft
housing
cooling fluid
channel
stator
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.)
Granted
Application number
GB1819371.4A
Other versions
GB2565258B (en
GB2565258A (en
GB201819371D0 (en
Inventor
Voight Matthias
Krebs Jörg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Krebs & Aulich GmbH
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 GB201819371D0 publication Critical patent/GB201819371D0/en
Publication of GB2565258A publication Critical patent/GB2565258A/en
Publication of GB2565258A9 publication Critical patent/GB2565258A9/en
Application granted granted Critical
Publication of GB2565258B publication Critical patent/GB2565258B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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

Abstract

The invention relates to an electric machine (1), designed as a motor and/or as a generator, comprising a housing (2), a stator (3) rotationally fixed to the housing (2), and a rotor shaft (5) arranged coaxially and radially within the stator (3), wherein the stator (3) and the rotor shaft (5) support electromagnetically effective components (4; 6), between which a hollow cylindrical air gap (7) is formed, wherein the rotor shaft (5) has a cylindrical inner space (8) which is closed at both axial ends thereof, wherein the rotor shaft (5) has at least one radially oriented inflow channel (20a, 20c) for introducing a cooling fluid into the inner space (8) as well as at least one radially oriented outflow channel (21a, 21c) for discharging the cooling fluid, and wherein the cooling fluid can be directed to the rotor shaft (5) via at least one inlet channel (13) in the housing (2), and away from same via at least one outlet channel (14) in the housing (2). In order to optimise the flowing of the cooling fluid into and/or out of the rotor shaft (5), according to the invention, at least one inflow channel (20a, 20c) and/or at least one outflow channel (21a, 21c) radially and transversely penetrates the wall of the rotor shaft (5) at a setting angle (a, c1, c2).
GB1819371.4A 2016-06-16 2017-05-17 Electric machine having a hollow rotor shaft Active GB2565258B (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 (4)

Publication Number Publication Date
GB201819371D0 GB201819371D0 (en) 2019-01-09
GB2565258A GB2565258A (en) 2019-02-06
GB2565258A9 true GB2565258A9 (en) 2022-02-23
GB2565258B GB2565258B (en) 2022-08-17

Family

ID=59276470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1819371.4A Active GB2565258B (en) 2016-06-16 2017-05-17 Electric machine having 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
WO2022213091A1 (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

Family Cites Families (6)

* 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
BE789009A (en) * 1971-09-21 1973-03-20 Westinghouse Electric Corp LIQUID COOLED ROTOR FOR DYNAMOELECTRIC MACHINES
JP2006320083A (en) * 2005-05-11 2006-11-24 Toyota Motor Corp Motor
KR101453505B1 (en) * 2012-12-05 2014-10-24 한국생산기술연구원 self water cooling motor
US9985501B2 (en) * 2013-08-16 2018-05-29 Hamilton Sundstrand Corporation Generators with open loop active cooling
US9762106B2 (en) * 2014-12-04 2017-09-12 Atieva, Inc. Motor cooling system

Also Published As

Publication number Publication date
AT524997A5 (en) 2022-10-15
GB2565258B (en) 2022-08-17
GB2565258A (en) 2019-02-06
AT524997B1 (en) 2022-12-15
DE102016007328B4 (en) 2022-08-04
GB201819371D0 (en) 2019-01-09
WO2017215686A1 (en) 2017-12-21
DE102016007328A1 (en) 2017-12-21

Similar Documents

Publication Publication Date Title
GB2565258A9 (en) Electric machine having a hollow rotor shaft
US10941781B2 (en) Electric motor vehicle axial-flow liquid pump
WO2013004559A3 (en) Electric machine with rotor interior ventilation
GB2497716A (en) Permanent magnet motor with a closed cooling system
KR20150089469A (en) Motor having function of cooling
JP2015534803A5 (en)
WO2010081140A3 (en) Machine cooling scheme
GB201218092D0 (en) A motor and a method of cooling a motor
WO2013131949A3 (en) Electrical machine having a rotor for cooling the electrical machine
FR2927736B1 (en) STATOR OF ROTATING ELECTRIC MACHINE.
JP2015158161A5 (en)
EP2930828A3 (en) Self-cooled motor
WO2016037859A3 (en) Generator for a power plant
WO2015181239A3 (en) Magnetic coupling
EP2860854A3 (en) Air cooling of a motor using radially mounted fan
EA201692009A1 (en) ASYNCHRONOUS ELECTRIC MOTOR
WO2013136021A3 (en) Assembly of flanges comprising axial ventilation blades generating an axial air flow inside the rotor
WO2016078895A3 (en) Cooling of an axial end region of a stator in a rotating electrical machine
GB2527707A (en) Improved turbine
EP2993764A3 (en) An electrical machine and methods of assembling the same
EP2978104A3 (en) Vacuum gap generators and motors
WO2012073207A3 (en) Improved rotating electric machine
WO2018053163A8 (en) Electric machine with stator cooling channels
CN104410202A (en) Circulating liquid cooling structure of centrifugal pump motor
BR112016028214A2 (en) electric machine

Legal Events

Date Code Title Description
789A Request for publication of translation (sect. 89(a)/1977)

Ref document number: 2017215686

Country of ref document: WO