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1. WO2013004559 - ELECTRIC MACHINE WITH ROTOR INTERIOR VENTILATION

Publication Number WO/2013/004559
Publication Date 10.01.2013
International Application No. PCT/EP2012/062417
International Filing Date 27.06.2012
IPC
H02K 1/32 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
32with channels or ducts for flow of cooling medium
H02K 9/14 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
14wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
H02K 9/16 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
14wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
16wherein the cooling medium circulates through ducts or tubes within the casing
H02K 5/136 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
5Casings; Enclosures; Supports
04Casings or enclosures characterised by the shape, form or construction thereof
12specially adapted for operating in liquid or gas
136explosion-proof
H02K 15/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
CPC
H02K 1/32
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
32with channels or ducts for flow of cooling medium
H02K 15/0006
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
0006Disassembling, repairing or modifying dynamo-electric machines
H02K 5/136
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
5Casings; Enclosures; Supports
04Casings or enclosures characterised by the shape, form or construction thereof
12specially adapted for operating in liquid or gas
136explosion-proof
H02K 9/06
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
02by ambient air flowing through the machine
04having means for generating a flow of cooling medium
06with fans or impellers driven by the machine shaft
H02K 9/14
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
14wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
H02K 9/16
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
14wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
16wherein the cooling medium circulates through ducts or tubes within the casing
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • BÜTTNER, Klaus [DE]/[DE] (UsOnly)
  • KIRCHNER, Klaus [DE]/[DE] (UsOnly)
  • MÜLLER, Michael [DE]/[DE] (UsOnly)
Inventors
  • BÜTTNER, Klaus
  • KIRCHNER, Klaus
  • MÜLLER, Michael
Common Representative
  • SIEMENS AKTIENGESELLSCHAFT
Priority Data
102011078784.407.07.2011DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ELEKTRISCHE MASCHINE MIT ROTORINNENBELÜFTUNG
(EN) ELECTRIC MACHINE WITH ROTOR INTERIOR VENTILATION
(FR) MOTEUR ÉLECTRIQUE À VENTILATION INTERNE DU ROTOR
Abstract
(DE)
Der Motorwirkungsgrad soll durch Herabsetzen der Rotortemperatur erhöht werden. Daher wird eine elektrische Maschine mit einem Stator (1), einem Rotor (2), der mit dem Stator (1) magnetisch zusammenwirkt, einem Gehäuse (4, 5, 6), das den Stator (1) und den Rotor (2) umgibt, und einer Hohlwelle (3), auf der der Rotor (2) angeordnet ist und die an dem Gehäuse (4, 5, 6) gelagert ist, vorgeschlagen. An der Belüftungsseite (B) ist auf der Hohlwelle (3) drehfest ein Radiallüfter (10) vorgesehen. Ein Abschnitt (13) eines Lüfterflügels (11) des Radiallüfters (10) erstreckt sich weiter axial von dem Gehäuse weg als die Hohlwelle (3). In der Hohlwelle (3) ist ein Führungselement (17) mit einem sich radial erstreckenden Teller angeordnet, wobei der Teller axial weiter von dem Gehäuse weg angeordnet ist als die Stirnseite der Hohlwelle an der Belüftungsseite (B). Damit ist ein innerer Kühlmittelstrom (18) von dem Abschnitt (13) des Lüfterflügels (11) des Radiallüfters (10) aus der Hohlwelle (3) durch einen Durchgang zwischen der Stirnseite (9) der Hohlwelle (3) an der Belüftungsseite und dem Teller radial nach außen förderbar.
(EN)
The motor efficiency is intended to be increased by reducing the rotor temperature. Therefore, an electric machine is proposed having a stator (1), a rotor (2) which interacts magnetically with the stator (1), a housing (4, 5, 6) which surrounds the stator (1) and the rotor (2), and a hollow shaft (3) on which the rotor (2) is arranged and which is mounted on the housing (4, 5, 6). A radial fan (10) is provided in rotationally fixed fashion on the hollow shaft (3) on the ventilation side (B). A section (13) of a fan blade (11) of the radial fan (10) extends axially away from the housing to a greater extent than the hollow shaft (3). A guide element (17) with a radially extending plate is arranged in the hollow shaft (3), wherein the plate is arranged axially further away from the housing than the end side of the hollow shaft on the ventilation side (B). An inner coolant flow (18) can thus be delivered from the section (13) of the fan blade (11) of the radial fan (10) out of the hollow shaft (3) through a passage between the end side (9) of the hollow shaft (3) on the ventilation side and the plate radially outwards.
(FR)
Le but de l'invention est d'augmenter le rendement du moteur par l'abaissement de la température du rotor. L'invention concerne un moteur électrique comprenant un stator (1), un rotor (2) qui coopère par voie magnétique avec le stator (1), un carter (4, 5, 6) qui entoure le stator (1) et le rotor (2), et un arbre creux (3) qui est fixé au carter (4, 5, 6) et sur lequel est disposé le rotor (2). Du côté ventilation (B), un ventilateur radial (10) est monté bloqué en rotation sur l'arbre creux (3). Une section (13) d'une ailette (11) du ventilateur radial (10) s'étend axialement hors du carter davantage que l'arbre creux (3). L'arbre ceux (3) renferme un élément de guidage (17) doté d'un disque d'extension radiale, ce disque s'étendant axialement hors du carter davantage que la face frontale de l'arbre creux côté ventilation (B). Ainsi un flux (18) d'un agent de refroidissement issu de l'arbre creux (3) peut être acheminé radialement vers l'extérieur par la section (13) de l'ailette (11) du ventilateur radial (10) en empruntant un passage entre la face frontale (9) de l'arbre creux (3) du côté ventilation et le disque.
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