METHOD OF MANUFACTURING A STATOR OF A CLAW-POLE MOTOR

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United States of America Patent

SERIAL NO

15088451

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A claw-pole motor for driving a centrifugal pump includes stator laminations in the form of annular discs with claw poles adjoining said stator laminations, which claw poles are arranged opposite permanent-magnet poles of a rotor, a ring-shaped winding and an insulating body, which is arranged between the stator laminations and the winding, and a magnetic return path ring, which is arranged radially around the winding and the stator laminations and bears fixedly against the stator laminations. The claw pole is achieved by the magnetic return path ring comprising at least two lamination rings, which are nested coaxially one inside the other and each have at least one cutout, and being the cutouts are offset with respect to one another through an angle such that said cutouts do not overlap one another, wherein the two cutouts define two angular ranges α1, α2, the lamination rings are connected fixedly to one another at a first connection point, which is removed from the cutouts, in the angular range α1 and likewise at another second connection point, which is removed from the cutouts, in the angular range α2.

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Patent Owner(s)

Patent OwnerAddress
BUHLER MOTOR GMBHANNE-FRANK-STR 33-35 NÜRNBERG 90459

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ihle, Olai Eckental, DE 12 93
Weiske, Klaus Schwaig, DE 12 17

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