Stator Comprising a Split Core and Method for Producing Such a Stator
AssigneeSagem Defense Securite
InventorsBernard RABRET, Jerome PIATON, Thierry BESSEDE
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Abstract
An electric motor stator wherein an annular central part and a yoke surrounding the central part, the central part includes a bundle of laminations delimiting poles, wherein the bundle of laminations includes a plurality of first laminations each containing portions forming a pole part that are joined by an annular internal portion, second laminations each forming a pole part being mounted between the first laminations, the first laminations being spaced apart from one another at a predetermined spacing according to a required inductance.
Claims8
An electric motor stator comprising an annular central part and a yoke surrounding the central part, the central part comprising a bundle of laminations delimiting poles, wherein the bundle of laminations comprises a plurality of first laminations each comprising portions forming a pole part that are joined by an annular internal portion, second laminations each forming a pole part being mounted between the first laminations, the first laminations being spaced apart from one another at a predetermined spacing according to a required inductance.
A method for manufacturing a stator, comprising an annular central part comprising first laminations and second laminations, each first lamination comprising portions forming a pole part which are joined by an annular internal portion, the second laminations each forming a pole part and being mounted between the first laminations, the method comprising the steps of:
- determining a spacing pitch of the first laminations according to a required inductance of the stator,
- producing the annular central part by stacking first laminations and the second laminations so that the first laminations are spaced apart from one another at the determined pitch,
- winding an electrical conductor around at least one of the poles of the bundle of laminations forming the central part.
Dependencies are inferred from the claim text.