WO2010115539A1 - Moteur électrique - Google Patents

Moteur électrique Download PDF

Info

Publication number
WO2010115539A1
WO2010115539A1 PCT/EP2010/001977 EP2010001977W WO2010115539A1 WO 2010115539 A1 WO2010115539 A1 WO 2010115539A1 EP 2010001977 W EP2010001977 W EP 2010001977W WO 2010115539 A1 WO2010115539 A1 WO 2010115539A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
rotor
electric motor
recess
motor according
Prior art date
Application number
PCT/EP2010/001977
Other languages
German (de)
English (en)
Inventor
Josef Schmidt
Jochen Mahlein
Volker Dietrich
Thomas Leichter
Björn EGGER
Original Assignee
Sew-Eurodrive Gmbh & Co. Kg
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 Sew-Eurodrive Gmbh & Co. Kg filed Critical Sew-Eurodrive Gmbh & Co. Kg
Priority to EP10712713A priority Critical patent/EP2417693A1/fr
Publication of WO2010115539A1 publication Critical patent/WO2010115539A1/fr

Links

Classifications

    • 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
    • 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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • 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
    • 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
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium

Definitions

  • the invention relates to an electric motor.
  • the invention is therefore based on the object to achieve higher performance with a more compact volume.
  • the object is achieved in the electric motor according to the features indicated in claim 1.
  • stator lamination stack is provided in the motor housing, on which a stator winding is arranged
  • air-conveying means are provided, in particular for driving an air flow within the housing.
  • the advantage here is that the heat dissipation from the rotor to the motor housing is performed improved. Especially with heat generating power lines on the rotor, as in a field winding of a separately excited synchronous machine or even with a short-circuit cage of an asynchronous machine, when high power is implemented and / or when a high torque is generated, this is advantageous.
  • the air which is present anyway is accelerated in such a way that the air passing by on or in the rotor laminated core releases the absorbed heat at the stator or motor housing.
  • the air conveying means are designed as a first, arranged axially in front of the first end side of the rotor laminated core, rotatably connected to the rotor shaft fan and / or a second axially behind the other end face of the rotor laminated core, rotatably connected to the rotor shaft fan wheel ,
  • the advantage here is that large air currents are driven.
  • the air conveying means comprise air baffles, which are arranged on one or both end faces of the rotor laminated core.
  • each recess is associated with at least one air baffle.
  • the respective air guide plate is designed such that during the rotational movement of the rotor in the circumferential direction trapped air is deflected in the axial direction, ie in particular in the axial direction is introduced into the mouth of the recess on the end face of the rotor core.
  • trapped air is deflected in the axial direction, ie in particular in the axial direction is introduced into the mouth of the recess on the end face of the rotor core.
  • the respective air baffle is arched, in particular arched such that catching and diverting the air with lower swirl losses is executable than in each case just executed air baffle.
  • the advantage here is that less vortex arise, especially in a blade-like design of the air baffles. Also of advantage are the greater dimensional stability and easy manufacturability, for example as a deep-drawn part.
  • the air gap between the rotor and the stator is at least partially provided for the return of the air conveyed along the recess. The advantage here is that no additional effort for the return is necessary.
  • a recess in the stator lamination stack in particular an axially extending recess in the stator lamination stack, or a recess in the motor housing is provided for the return of the air conveyed along the recess.
  • the recess in particular in the rotor laminated core and / or laminated stator core, is designed as a groove running on the surface.
  • the surface of the rotor is designed with helically extending grooves.
  • the screw axis is the rotor axis and the grooves extend on the surface of the rotor.
  • a cooling medium in particular a liquid cooling medium, in particular water
  • the electric motor is a synchronous machine, in particular a separately excited synchronous machine, an asynchronous machine or a reluctance machine.
  • a synchronous machine in particular a separately excited synchronous machine, an asynchronous machine or a reluctance machine.
  • the rotor laminated core is composed of stanzmp convinced individual sheets, each individual sheet has punched to form the recesses.
  • FIG. 1 shows a rotor laminated core 1 which is connected in a rotationally fixed manner to the rotor shaft 2 and has channels which start at a first end side of the rotor core and terminate at the end face opposite the first end side. In this way, therefore, air in the axial direction through the rotor core can be moved. Since the channels are not made parallel to the rotor axis, a conveying effect for air is achieved when rotating relative to the housing rotor, so that it is conveyed from the first end side to the axially opposite end face.
  • the channels 3 are rectilinear from the first end side to the opposite end side, but do not run parallel to the rotor axis. Since the rotor laminated core is composed of individual similar sheet-metal parts, a simple stack-forming production, in particular stamped packaging, is made possible. The stack is stacked in the axial direction.
  • the channels in the rotor laminated core are parallel to the rotor axis.
  • the channels then always have the same radial distance from the rotor axis.
  • the channels are helical, wherein the screw axis is the rotor axis.
  • the channels then in turn always have the same radial distance from the rotor axis and have an increasing angular value in the axial direction in the circumferential direction.
  • the channels are thus designed with a helix angle.
  • FIG. 2 shows an alternative embodiment.
  • the rotor laminated core has a plurality of grooves 20 on the circumference, which are designed helically in the axial direction, so in turn are always at the same radial distance and have an increasing with the axial direction angular value in the circumferential direction.
  • the grooves 20 and the channels 3 can also be combined provided on the rotor laminated core.
  • an air guide plate 30 is provided at the axial end of each channel, which is thus connected to the end face of the rotor core 1, in particular welded.
  • the Air baffles 30 are designed as rectangular sheet metal pieces, which are provided inclined so that upon rotation of the rotor core in the preferred direction air is conveyed into the channels 30. When the sheet metal pieces are arranged on both end faces in the reverse orientation, air can be conveyed into the channels in both directions of rotation.
  • FIG. 4 instead of the rectangular air baffles 30, curved air baffles 40 are shown, which are formed like a blade. Again, air is fed into the channels 30 upon rotation of the rotor core in the preferred direction. When the sheet metal pieces are arranged on both end faces in the reverse orientation, air can be conveyed into the channels in both directions of rotation.
  • FIG. 5 shows a further exemplary embodiment.
  • the housing 4 of the motor surrounds the stator, wherein additional air ducts 54 are provided in the axial direction.
  • the rotor shaft 2 is supported by two bearings 50, which are provided in the housing of the motor.
  • the provided on the rotor shaft 2 rotor core 1 has the channels 3.
  • the grooves 20 can be used on the outer circumference.
  • the stator winding 51 is provided on a laminated stator core, wherein the additional channels 54 can be provided in the laminated stator core.
  • a fan wheel 52 is provided on the rotor shaft 2, which is non-rotatably connected to the rotor shaft 2 and generates a conveying action for air.
  • the air is conveyed through the rotor laminated core, in particular through the channels and / or grooves in the rotor laminated core.
  • a backflow of the air is made possible by the additional channels in the laminated stator core or by the air gap 53 between the stator and the rotor.
  • the fan wheels 52 are not shown, but it is shown an otherwise similar to Figure 5 engine.
  • channels 60 are provided in the housing of the motor, which are suitable for flow with a liquid cooling medium, such as water or oil, so are designed to be sealed.
  • a liquid cooling medium such as water or oil
  • the housing of the engine is cooled directly.
  • the heat of the laminated stator core is thus dissipated to the housing of the engine and from there to the cooling medium.
  • the stator lamination packet is positively connected to the housing of the motor and / or even positively connected.
  • a shrinkage of the housing is advantageous for which a temperature difference of more than 30 Kelvin is produced before the insertion of the stator lamination in the housing and shrinks after insertion of the housing on the stator lamination.
  • FIG. 7 shows an embodiment which, unlike FIG. 5, has an additional air channel 70 in the motor housing.
  • the return of the air is particularly effective and the heat can be delivered directly to the motor housing and discharged from there to the environment.
  • FIG. 8 shows an embodiment in which an additional air channel 80 is provided in the laminated stator core.

Landscapes

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

Abstract

L'invention concerne un moteur électrique, comprenant un carter de moteur dans lequel sont prévus des paliers pour supporter l'arbre du rotor. Le carter du moteur abrite un noyau de stator feuilleté sur lequel est placé un bobinage de stator. Le carter de moteur abrite un noyau de rotor feuilleté, solidarisé en rotation avec l'arbre du rotor. Le noyau de rotor feuilleté possède des encoches qui vont de l'une des faces frontales axiales du noyau de rotor feuilleté à l'autre face frontale axiale du noyau de rotor feuilleté.
PCT/EP2010/001977 2009-04-08 2010-03-29 Moteur électrique WO2010115539A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10712713A EP2417693A1 (fr) 2009-04-08 2010-03-29 Moteur électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009016602.5 2009-04-08
DE102009016602 2009-04-08

Publications (1)

Publication Number Publication Date
WO2010115539A1 true WO2010115539A1 (fr) 2010-10-14

Family

ID=42140050

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/001977 WO2010115539A1 (fr) 2009-04-08 2010-03-29 Moteur électrique

Country Status (3)

Country Link
EP (1) EP2417693A1 (fr)
DE (1) DE102010013302A1 (fr)
WO (1) WO2010115539A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140152138A1 (en) * 2012-12-05 2014-06-05 Denso Corporation Rotor and rotating electric machine having the same
US20140265667A1 (en) * 2013-03-15 2014-09-18 Ingersoll-Rand Company Electrical machine having cooling features
WO2017006430A1 (fr) * 2015-07-07 2017-01-12 日産自動車株式会社 Rotor
WO2019165523A1 (fr) * 2018-03-02 2019-09-06 Weg Equipamentos Elétricos S.a. Machine électrique tournante avec canaux échangeurs de chaleur pour air et pour liquide
US11581784B2 (en) 2019-06-06 2023-02-14 Zf Friedrichshafen Ag Heat sink for an electric machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014219894A1 (de) 2014-10-01 2016-04-07 Volkswagen Aktiengesellschaft Rotor, Synchronmaschine und Hybridantrieb
DE102017202752A1 (de) 2017-02-21 2018-08-23 Continental Automotive Gmbh Rotor für eine elektrische Maschine
DE102017202801A1 (de) 2017-02-21 2018-08-23 Continental Automotive Gmbh Rotorblechpaket für einen Rotor
DE102018208706A1 (de) * 2018-06-04 2019-12-05 Audi Ag System zum Kühlen einer Elektromaschine
DE102019001935A1 (de) * 2019-03-20 2020-09-24 Yücel Türedioglu Elektro-Motor-Turbo-Generator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02219447A (ja) * 1989-02-17 1990-09-03 Hitachi Ltd スタータの電機子
JPH0865933A (ja) * 1994-08-11 1996-03-08 Matsushita Electric Ind Co Ltd モータのロータコア
JPH08275421A (ja) 1995-03-28 1996-10-18 Shinko Electric Co Ltd 回転電機のロータ構造
JP2001025209A (ja) * 1999-07-05 2001-01-26 Nissan Motor Co Ltd 電動機のロータ
JP2006042543A (ja) 2004-07-29 2006-02-09 Matsushita Electric Ind Co Ltd 誘導電動機
US20060055256A1 (en) 2004-09-09 2006-03-16 Scott Kreitzer Method for ventilating a motor
JP2006180684A (ja) 2004-11-25 2006-07-06 Toshiba Corp 車両駆動用全閉形電動機
WO2008059687A1 (fr) 2006-11-17 2008-05-22 Kabushiki Kaisha Yaskawa Denki Moteur rotatif

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE952733C (de) * 1953-03-27 1956-11-22 Siemens Ag Einrichtung zur Luftumwaelzung fuer geschlossene Elektromotoren
JPS5486604U (fr) * 1977-12-02 1979-06-19
DE3134080A1 (de) * 1981-08-28 1983-04-14 Robert Bosch Gmbh, 7000 Stuttgart Elektrische maschine, insbesondere drehstromgenerator, mit innenliegenden kuehlkanaelen
DE4443427C2 (de) * 1994-12-06 2002-04-18 Siemens Ag Elektrische Maschine
DE19635196A1 (de) * 1996-08-30 1998-03-12 Audi Ag Kühlanordnung für einen Elektromotor
JPH10327557A (ja) * 1997-05-23 1998-12-08 Matsushita Electric Ind Co Ltd 全閉形誘導電動機
DE19851439A1 (de) * 1998-11-09 2000-03-30 Daimler Chrysler Ag Elektrische Maschine mit Kühlung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02219447A (ja) * 1989-02-17 1990-09-03 Hitachi Ltd スタータの電機子
JPH0865933A (ja) * 1994-08-11 1996-03-08 Matsushita Electric Ind Co Ltd モータのロータコア
JPH08275421A (ja) 1995-03-28 1996-10-18 Shinko Electric Co Ltd 回転電機のロータ構造
JP2001025209A (ja) * 1999-07-05 2001-01-26 Nissan Motor Co Ltd 電動機のロータ
JP2006042543A (ja) 2004-07-29 2006-02-09 Matsushita Electric Ind Co Ltd 誘導電動機
US20060055256A1 (en) 2004-09-09 2006-03-16 Scott Kreitzer Method for ventilating a motor
JP2006180684A (ja) 2004-11-25 2006-07-06 Toshiba Corp 車両駆動用全閉形電動機
WO2008059687A1 (fr) 2006-11-17 2008-05-22 Kabushiki Kaisha Yaskawa Denki Moteur rotatif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2417693A1

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140152138A1 (en) * 2012-12-05 2014-06-05 Denso Corporation Rotor and rotating electric machine having the same
US9653953B2 (en) * 2012-12-05 2017-05-16 Denso Corporation Rotor with blade portions and rotating electric machine having the same
US20140265667A1 (en) * 2013-03-15 2014-09-18 Ingersoll-Rand Company Electrical machine having cooling features
US9680351B2 (en) * 2013-03-15 2017-06-13 Ingersoll-Rand Company Electrical machine having cooling features
WO2017006430A1 (fr) * 2015-07-07 2017-01-12 日産自動車株式会社 Rotor
WO2019165523A1 (fr) * 2018-03-02 2019-09-06 Weg Equipamentos Elétricos S.a. Machine électrique tournante avec canaux échangeurs de chaleur pour air et pour liquide
US11581784B2 (en) 2019-06-06 2023-02-14 Zf Friedrichshafen Ag Heat sink for an electric machine

Also Published As

Publication number Publication date
DE102010013302A1 (de) 2010-10-14
EP2417693A1 (fr) 2012-02-15

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