Method of manufacture of a motor stator not - to - of the pendulum, and the stator to a step motor - to - no pendulum

摘要

P & the sheet of the stator 1 is cut to the matrix in a single piece in the form of a rectangular frame extension and closes, whose dimensions are constituted by a long branch 2 supporting the coil and a branch 3 forming the return circuit, an opening 6 for the rotor being constituted in a narrow size of the frame between the pole pieces 5 and the bridges 7 of the pole pieces and the rigidity in the shape of the frame being insured by a link located remote and formed by a cross-member toroidal. The latter, after the treatments applied to the material and immediately prior to placing the coil 11 of the stator on one of the branches 2, is cut of the front stiffener 17 of the branches of the way to obtain directly a cross piece of sheet 16 which is fixed at the back of the coil 11 is put in place and by means of the stiffener, in projection of the branches 2, 3, so as to obtain by that - ci the return of the magnetic flux, and also the rigidity in the shape of the frame. / p