Metal working – Method of mechanical manufacture – Electrical device making
Patent
1974-10-10
1976-05-11
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
29607, 310 42, 310 43, 310217, 310218, 310254, H02K 1512
Patent
active
039552721
ABSTRACT:
A method for making a stator for electric motors comprised of a plurality of laminations arranged with their sides in the direction of the rotor axis wherein the edge portions of the laminations running in the axial direction are bent upwardly towards the stator bore and maintained in spaced apart relation at a predetermined position and permanently fixed in that position solely by means of a moulding compound. Each lamination stack consists of undivided laminations comprising a north and a south pole wherein each main pole consists of the lamination edges of the two adjacent stacks. The method consists of the steps of positioning the laminations between a pair of inner and outer mould members wherein the inner mould member has means for supporting the terminal edges of the laminations in the predetermined spaced apart relation and disposed along the circumference of a circle and thereafter permanently fixing the terminal edges of the laminations in relation to one another by means of a moulding mass in the spaces between the laminations adjacent the terminal edge portions.
REFERENCES:
patent: 3591819 (1971-07-01), Laing
Hall Carl E.
SKF Industrial Trading and Development Company B.V.
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