Stator core for an electronically commutated direct current motor and method for producing a stator

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United States of America Patent

PATENT NO 9780607
SERIAL NO

15041270

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Importance

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Abstract

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A stator core for an electronically commutated DC motor with an internal rotor having a plurality of radially inwardly directed pole cores which at their periphery are integral with back iron segments and the back iron segments are integral with adjacent back iron segments via webs, wherein the back iron segments alternate with the webs and jointly form a seamless closed one-piece ring. A method of ensuring that in the case of a stator core of this class, upon a reduction of the stator diameter and reduction of the pole distances after winding, a clearly defined end position of the adjoining regions can be assumed, and that for this process, only minimal forces are necessary, in which damage to the stator core is not to be expected, and that at the end of the process only a very small and uniform air gap remains at a lowest possible spring-back.

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Patent Owner(s)

Patent OwnerAddress
BUHLER MOTOR GMBHNUREMBERG

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Inventor(s)

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

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