Stepper motor for clockwork in which the stator consists of a soft magnetic alloy and soft magnetic alloy
AssigneeImphy S.A.
InventorsGeorges Couderchon, Laurent Chaput, Lucien Coutu, Dominique Gautard
Life of this patent
Estimating the term…
Abstract
Stepper motor of the type comprising a rotor (1), a stator (2) and a coil (3) consisting of a magnetic core (4) and of a winding (5), in which the stator (2) consists of a soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight: 40%.ltoreq.Ni+Co.ltoreq.60%, 0%.ltoreq.Co.ltoreq.7%, 8%.ltoreq.Cr.ltoreq.13.5%, 8%.ltoreq.Cr+Mn+Si+Mo+Nb+V+W.ltoreq.13.5%, the remainder being iron and impurities resulting from the manufacture. Soft magnetic alloy.
Claims13
A stepper motor of the type comprising a rotor (1), a stator (2) and a coil (3) consisting of a magnetic core (4) and of a winding (5), wherein the stator (2) consists of a soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight:
- ##EQU11## the remainder being iron and impurities resulting from the manufacture.
A soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight:
- ##EQU15## the remainder being iron and impurities resulting from the manufacture.
A soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight:
- ##EQU16## the remainder being iron and impurities resulting from the manufacture.
Dependencies are inferred from the claim text.