Method for manufacturing a stator
AssigneeATOP S.p.A.
InventorsMassimo Ponzio, Rubino Corbinelli, Daniele Nocciolini
Life of this patent
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Abstract
A method and an apparatus are provided for manufacturing a stator with a plurality of hairpin conductors. For inserting the hairpin conductors (15, 15) into the slots (11) of a stator core (12) a stator core template (22) is provided. Hairpin conductors (15) are axially inserted into slots (21) of the stator core template (22) such that the hairpin conductor (15) is arranged at a first position (P1) within said slot (21). The hairpin conductor (15) is then moved within said slot (21) to a different position (P2). A complete nest (20) of hairpin conductors (15) formed within the stator core template (22) is then transferred to the stator core (12).
Claims19
A method for manufacturing a stator with a plurality of hairpin conductors arranged in slots of a stator core, comprising:
- a. providing a stator core template having a number of radially and axially extending slots corresponding to the number of slots of the stator core, said slots of the stator core template having at least one of a circumferential width larger than the circumferential width of the slots of the stator core and a radial length larger than the radial length of the slots of the stator core;
- b. inserting at least one hairpin conductor into at least one of said slots of the stator core template such that said hairpin conductor is arranged at a first position within said slot, wherein in said first position the hairpin conductor is arranged differently than in the intended position in the stator core;
- c. moving said hairpin conductor within said slot of said a stator core template from said first position to a second position;
- d. repeating the inserting and the moving for at least one additional hairpin conductor such as to form a first layer of a partial nest or a nest of hairpin conductors;
- e. removing the partial nest or the nest of hairpin conductors from the stator core template before starting to insert the nest or the partial nest into the slots of the stator core;
- and
- f. inserting the nest or the partial nest that has been completely removed from the stator core template into the slots of the stator core.
Dependencies are inferred from the claim text.