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公开(公告)号：US20230283153A1
公开(公告)日：2023-09-07
申请号：US18177366
申请日：2023-03-02
发明人： Tobias WEGSCHEIDER , Oliver BITTNER , Tomislav JELEN , Frederik SCHMID , Johannes HEIDE , Thomas THURNHUBER
IPC分类号： H02K15/00
CPC分类号： H02K15/0031
摘要： A method and a device by which conductor ends of hairpins sticking out from stator slots are shaped to form coil windings. The ends are shaped in the radial direction using different widening tools allowing the ends to be engaged individually or in pairs so that a first part is at a first radial position, a second part is at a second radial position and a third part is at at least one intermediate position in between. Subsequently, the ends are shaped in the circumferential direction using twisting tools, wherein a twisting tool located further out has inwardly open inner receiving pockets, and a twisting tool located further in has outwardly open outer receiving pockets. At least one of the twisting tools has both inner and outer receiving pockets, one of these located at the at least one intermediate position to shape the third part of the ends.
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公开(公告)号：US20210006139A1
公开(公告)日：2021-01-07
申请号：US16976355
申请日：2019-02-27
发明人： Frederik SCHMID , Ralf RAUSCHER
摘要： A winding mat formed as a flat winding and to coil mat formed from it for producing a coil winding for an electric machine. To be able to manufacture different coil mats also with layer swap and conductor swap in an automated manner and in large series and with a high degree of reliability, it is proposed to join wave winding wires by plugging. To produce the coil mat, it is proposed, among other things, to join two individual mats by plugging the mats together.
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公开(公告)号：US20220352795A1
公开(公告)日：2022-11-03
申请号：US16765689
申请日：2018-11-22
发明人： Frederik SCHMID , Ralf RAUSCHER
摘要： A bending unit for bending a bend of a wave winding for a coil winding of an electric machine, having a first holding element for holding a first segment of a wire to be bent, a second holding element for holding a second segment of the wire to be bent and at least one bending mold for bending a transition region of the wire between the first segment and the second segment. The first and the second holding elements are in engagement with each other via at least one mechanical control cam to control a relative pivoting and a relative displacement of the first and the second holding element. Furthermore, a bending device having a plurality of such bending units, a wave winding production apparatus having a plurality of bending units which are synchronized via control cams, and a bending method and a wave winding production method are described.
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