Proceeding for the manufacturing of a stator for an electric motor and of an electric motor
AssigneeAskoll Holding S.r.l.
InventorElio Marioni
Life of this patent
Estimating the term…
Abstract
A process for manufacturing an outer stator for an electric motor whereby the stator comprises stator poles surrounded by coils. A laminar body of ferromagnetic material is prepared, with elongated form and provided with laminar protrusions. A coil of conductive material is then inserted around each of the laminar protrusions. The terminal zones of the laminar protrusions are then cut or separated and deformed in order to assume an outwardly curved form. Then, the laminar body is closed such that the laminar protrusions are in an internal position and adapted to serve as stator poles.
Claims17
A process for manufacturing an outer stator for an electric motor, said stator comprising stator poles surrounded by coils, said process including the following steps:
- preparing a laminar body, of ferromagnetic material with a base of elongated form and laminar protrusions, wherein said step of preparing the laminar body comprises:
- preparing a plurality of modular laminar elements, each of which comprises a central plate and a pair of lateral plates, and
- arranging said modular laminar elements together by means of juxtaposition and/or mutual fixing of said lateral plates so as to form said laminar protrusions;
- inserting a coil of conductive material around each of said laminar protrusions;
- deforming the terminal zones of said laminar protrusions such that said terminal zones assume a bent form;
- and
- closing said laminar body such that said laminar protrusions are in internal position and adapted to serve as stator poles.
A process for manufacturing an outer stator for an electric motor, said stator comprising stator poles surrounded by coils, said process including the following steps:
- preparing a laminar body of ferromagnetic material, with a base of elongated form and laminar protrusions;
- inserting a coil of conductive material around each of said laminar protrusions;
- deforming the terminal zones of said laminar protrusions such that said terminal zones assume a bent form, wherein said deforming step comprises a cutting and/or separation operation of said terminal zones, and a bending operation of said terminal zones;
- and
- closing said laminar body such that said laminar protrusions are in internal positions and are adapted to serve as stator poles.
Dependencies are inferred from the claim text.