H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 1/16 (2006.01) H02K 15/02 (2006.01)
Patent
CA 2372753
A stator for a rotary electric machine including a first stator part (2) essentially in the form of a hollow cylinder with an inner envelope surface (4) and with a plurality of grooves (3), at least partly running in the axial direction of the stator (1), which are intended to receive stator conductors (8), wherein each of the grooves in radial direction is delimited towards the inner envelope surface of the first stator part by a bridge (5). The first stator part (2) includes at least one flux influencing stator portion (9), which is at least partly arranged in at least one of the bridges and has an interior material structure that provides it with a magnetic resistance, which at least in the direction of the circumference of the stator is larger then the magnetic resistance in the radial direction of the stator in those portions of the first stator part which surround said flux influencing portion.
L'invention concerne un stator d'une machine électrique rotative. Ce stator comprend un premier élément stator (2) ayant sensiblement la forme d'un cylindre creux et doté d'une surface enveloppe (4) interne et de plusieurs rainures (3) qui s'étendent au moins partiellement dans la direction axiale du stator (1) et qui sont destinées à recevoir les conducteurs de stator (8). Chaque rainure s'étendant dans la direction radiale est délimitée vers la surface enveloppe interne du premier élément stator par un pont (5). Le premier élément stator (2) comprend au moins une partie (9) qui influence le flux et qui est située au moins partiellement dans au moins un des ponts. Ce premier élément stator (2) a une structure interne qui lui confère, dans le sens de circonférence du stator, une résistance magnétique supérieure à celle dans le sens radial du stator dans les parties du premier élément stator qui entourent ladite partie influençant le flux.
Bryggman Ulf
Ohlsson Bertil
Soderholm Svante
Abb Ab
Robic
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