US 11,705,790 B2
Method for producing an arrangement for a plug-in coil of an electrical machine, and arrangement
Ludger Martinschledde, Rietberg (DE); Florian Sell-Le Blanc, Karlsruhe (DE); and Timo Schmit, Ostenfelde (DE)
Assigned to Aumann AG, Beelen (DE)
Appl. No. 16/770,413
Filed by AUMANN AG, Beelen (DE)
PCT Filed Dec. 6, 2018, PCT No. PCT/DE2018/100995
§ 371(c)(1), (2) Date Jun. 5, 2020,
PCT Pub. No. WO2019/110057, PCT Pub. Date Jun. 13, 2019.
Claims priority of application No. 10 2017 129 134.2 (DE), filed on Dec. 7, 2017.
Prior Publication US 2020/0295635 A1, Sep. 17, 2020
Int. Cl. H02K 15/00 (2006.01); H02K 3/28 (2006.01); H02K 3/50 (2006.01)
CPC H02K 15/0081 (2013.01) [H02K 3/28 (2013.01); H02K 3/50 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for producing an arrangement for a plug-in coil of an electrical machine, the method comprising:
providing a core with grooves;
providing coil elements which are rod-shaped and have a proximal end and a distal end;
inserting the coil elements into the grooves from one end face of the core with the distal end at the front, in such a way that the proximal end is arranged in the region of the end face and the distal end is arranged in the region of an opposite end face of the core or adjacent thereto, respectively; and
producing a respective joined connection for the distal ends or the proximal ends of a first coil element and of a second coil element by means of an associated first connecting element on the opposite end face or the end face of the core, wherein a connection is formed in each case before the joining process between respective joining partners, such that the distal end or the proximal end of the first coil element and a first joining portion of the first connecting element and the distal end or the proximal end of the second coil element and a second joining portion of the first connecting element, by means of which connection the relative position of the joining partners in relation to one another is fixed and the connection is carried out as one of snap connection and detent connection;
wherein during forming of the connection between the joining partners, a projection arranged on the distal end or proximal end of the coil element, which projection is configured as a pin and has a further projection formed on a distal end of the pin, is fitted onto the first connecting element so that the projection is arranged in an associated recess of the first connecting element and the further projection engages into a circumferential groove on the first connecting element.