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1. WO2011073520 - ARRANGEMENT AND METHOD FOR COOLING AN ELECTRICAL MACHINE

Publication Number WO/2011/073520
Publication Date 23.06.2011
International Application No. PCT/FI2010/051035
International Filing Date 15.12.2010
IPC
H02K 9/08 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
08by gaseous cooling medium circulating wholly within the machine casing
H02K 9/19 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
19for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 9/18 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
18wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
CPC
H02K 1/20
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
12Stationary parts of the magnetic circuit
20with channels or ducts for flow of cooling medium
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 5/20
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
20with channels or ducts for flow of cooling medium
H02K 9/04
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
H02K 9/10
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
10by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K 9/19
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
9Arrangements for cooling or ventilating
19for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Applicants
  • ABB Oy [FI]/[FI] (AllExceptUS)
  • MÄKI-ONTTO, Petri [FI]/[FI] (UsOnly)
  • TYLLINEN, Yrjö [FI]/[FI] (UsOnly)
  • KANNINEN, Pekka [FI]/[FI] (UsOnly)
Inventors
  • MÄKI-ONTTO, Petri
  • TYLLINEN, Yrjö
  • KANNINEN, Pekka
Agents
  • HEIKKINEN-KEINÄNEN, Merja
Priority Data
2009634217.12.2009FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ARRANGEMENT AND METHOD FOR COOLING AN ELECTRICAL MACHINE
(FR) AGENCEMENT ET PROCÉDÉ DE REFROIDISSEMENT D'UNE MACHINE ÉLECTRIQUE
Abstract
(EN)
In an arrangement according to the invention for cooling an electrical machine, the electrical machine (1) comprises a rotor (2) and a stator (4) located at the end of an air gap (3) from the rotor (2). The rotor (2) comprises at least one axial cooling channel (7) originating from the first end (6a) of the rotor (2) that is connected to at least two axially successive cooling channels (8) that are substantially radial within the rotor (2). The stator (2) is made of sheets using axially successive core modules (4a-f). The stator (2) comprises a radial cooling channel (9) between two core modules (4a-f). Gaseous cooling agent (15, 15a-b) is led to the cooling channels of the rotor and stator from the end of the rotor. The outer surface (12) of the stator core module comprises a cooling jacket (10a-f) by the length (L) of the stator core module (4a-f) at maximum, and liquid cooling agent (13, 13a, b) is led to the cooling jacket (10a-f).
(FR)
Dans l'agencement selon la présente invention destiné au refroidissement d'une machine électrique, la machine électrique (1) comprend un rotor (2) et un stator (4) situé à l'extrémité d'un entrefer (3) à partir du rotor (2). Le rotor (2) comprend au moins un canal de refroidissement axial (7) qui part de la première extrémité (6a) du rotor (2) et qui est relié à au moins deux canaux de refroidissement se suivant axialement (8) qui sont sensiblement radiaux à l'intérieur du rotor (2). Le stator (2) est constitué de feuilles utilisant des modules noyaux se suivant axialement (4a-f). Le stator (2) comprend un canal de refroidissement radial (9) situé entre deux modules noyaux (4a-f). Un agent de refroidissement gazeux (15, 15a-b) est acheminé vers les canaux de refroidissement du rotor et du stator à partir de l'extrémité du rotor. La surface externe (12) du module noyau du stator comprend une chemise de refroidissement (10a-f) ayant au maximum la longueur (L) du module noyau du stator (4a-f), et un agent de refroidissement liquide (13, 13a, b) est acheminé jusqu'à la chemise de refroidissement (10a-f).
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