Method for producing a stator
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorsJohannes Lange, Tobias Engelhardt, Stefan Schmitz, Axel Heitmann, Jan Nägelkrämer, Stefan Oechslen, Daniel Knoblauch, Wolfgang Thaler, Stefan Heinz
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Abstract
Described is a method for producing a stator, in particular for electric motors. In a first step, a plurality of flexible electrical conductors are combined to form a conductor bundle. In a second step, two end regions of the conductor bundle are pressed in such a way that a central region of the conductor bundle formed between the two end regions remains flexible. Also described is a corresponding stator.
Claims6
A method for producing a stator for electric motors, the stator having at least one stator coil that is round using hairpin technology, and a winding head of the stator coil that is constructed from hairpin conductors in a U-shape manner, said method comprising the steps of:
- combining a plurality of flexible electrical conductors to form a conductor bundle;
- bending the plurality of flexible electrical conductors to form a curved central region and two end regions extending from opposite ends of the curved central region;
- and
- pressing the two end regions of the conductor bundle to form two pressed end regions in such a way that the curved central region of the conductor bundle formed between the two pressed end regions is not pressed and has a greater flexibility than the pressed end regions such that a pressed litz-wire hairpin having a flexible head is formed, wherein each pressed end region has a greater length than the central region, and wherein each pressed end region intersects the curved central region.
Dependencies are inferred from the claim text.