Invention Grant
- Patent Title: Method for producing a coil winding for inserting into radially open grooves of stators or rotors of electric machines
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Application No.: US15779534Application Date: 2016-11-24
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Publication No.: US10938282B2Publication Date: 2021-03-02
- Inventor: Sadik Sadiku , Keith Witwer
- Applicant: Schaeffler ELMOTEC STATOMAT GmbH
- Applicant Address: DE Karben
- Assignee: Schaeffler ELMOTEC STATOMAT GmbH
- Current Assignee: Schaeffler ELMOTEC STATOMAT GmbH
- Current Assignee Address: DE Karben
- Priority: DE102015120661.7 20151127
- International Application: PCT/EP2016/078666 WO 20161124
- International Announcement: WO2017/089455 WO 20170601
- Main IPC: H01F7/06
- IPC: H01F7/06 ; H02K15/04

Abstract:
The method according to the invention is used to produce a coil winding (70) which can be inserted into the grooves of a stator or rotor of an electric machine. While using a winding template (26) and a wire handling device (14), the invention proposes carrying out a displacement process between a first and a second holding region (34, 36) even before the wires (32) are initially wound onto the winding template (26) in order to produce an inclined wire section (40) which is subsequently shaped into winding heads (42) by means of a rotating/winding process. The novel method offers the advantage that all of the wires (32) of a coil winding (70) can be processed simultaneously using a comparably simple winding device (110). The projection of the winding heads (42) over the stator can also be minimized.
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