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1. WO2014076561 - METHOD AND APPARATUS FOR PRODUCING CORES FOR ELECTRICAL MACHINES

Publication Number WO/2014/076561
Publication Date 22.05.2014
International Application No. PCT/IB2013/002647
International Filing Date 05.11.2013
IPC
H02K 15/02 2006.1
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
02of stator or rotor bodies
CPC
H02K 1/146
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
14Stator cores with salient poles
146consisting of a generally annular yoke with salient poles
H02K 1/16
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
16Stator cores with slots for windings
H02K 1/26
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
26Rotor cores with slots for windings
H02K 15/00
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
H02K 15/02
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
02of stator or rotor bodies
H02K 15/026
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
02of stator or rotor bodies
024with slots
026Wound cores
Applicants
  • TRANCERIE EMILIANE S.P.A. [IT]/[IT] (AllExceptUS)
  • FELISA, Franco [IT]/[IT] (US)
  • BOVAIA, Orazio [IT]/[IT] (US)
Inventors
  • FELISA, Franco
  • BOVAIA, Orazio
Agents
  • BERESFORD, Keith, Denis, Lewis
Priority Data
1220611.615.11.2012GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR PRODUCING CORES FOR ELECTRICAL MACHINES
(FR) PROCÉDÉ ET APPAREIL POUR PRODUIRE DES NOYAUX POUR DES MACHINES ÉLECTRIQUES
Abstract
(EN) There is described a method and apparatus for forming a core for an electrical machine, in which a stamped metal strip (4a, 4b) is wound onto a mandrel (22), to form a helical winding. The diameter of the mandrel is then increased to apply tension to the wound strip, while the coils of the wound strip are held between clamps (24, 25). The coils of the wound strip are then fixed relative one to another (50, 51 ), while the coil is held at the increased diameter. The diameter of the mandrel is then reduced to disengage the laminated core from the mandrel. To produce a rotor or stator for an electrical machine, electrical coils are mounted in slots formed in the inner or outer surface of the core. The rotor or stator may then be incorporated into an electrical machine such as a motor or generator.
(FR) L'invention porte sur un procédé et sur un appareil pour former un noyau pour une machine électrique, dans lesquels une bande métallique emboutie (4a, 4b) est enroulée sur un mandrin (22), de façon à former un enroulement hélicoïdal. Le diamètre du mandrin est ensuite accru de façon à appliquer une tension à la bande enroulée, tandis que les enroulements de la bande enroulée sont maintenus entre des pinces (24, 25). Les enroulements de la bande enroulée sont ensuite fixés les uns par rapport aux autres (50, 51), tandis que l'enroulement est maintenu au diamètre accru. Le diamètre du mandrin est ensuite réduit de façon à désengager le noyau stratifié à partir du mandrin. Pour produire un rotor ou un stator pour une machine électrique, les enroulements électriques sont montés dans des fentes formées dans la surface interne ou externe du noyau. Le rotor ou le stator peut ensuite être incorporé dans une machine électrique telle qu'un moteur ou un générateur.
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