US 12,330,236 B2
Method for producing a winding for an electric machine and material reservoir for such a method
Florian Braunbeck, Stuttgart (DE); and Markus Omlor, Wuerzburg (DE)
Assigned to Dr. Ing. h. c. F. Porsche AG, Stuttgart (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Dec. 28, 2022, as Appl. No. 18/089,894.
Claims priority of application No. 10 2022 106 787.4 (DE), filed on Mar. 23, 2022.
Prior Publication US 2023/0307997 A1, Sep. 28, 2023
Int. Cl. H02K 15/35 (2025.01); B23K 26/32 (2014.01); B23K 101/38 (2006.01)
CPC B23K 26/32 (2013.01) [H02K 15/35 (2025.01); B23K 2101/38 (2018.08)] 15 Claims
OG exemplary drawing
 
1. A method for producing a winding (1) for an electric machine (10), wherein the winding (1) comprises plural conductor elements (2) and each of the conductor elements (2) has a conductor end (3), the conductor ends (3) of at least two of the conductor elements (2) having a planned bonding location at which the conductor ends (3) of the at least two conductor elements (2) are to be bonded electrically with one another, the method comprising:
arranging at least one insulating material reservoir (5) at positions on the conductor ends (3) of the at least two conductor elements (2) spaced from a planned bonding location;
generating a bonding point (4) by joining the conductor ends (3) of the at least two conductor elements (2) at the planned bonding location;
melting the material reservoir (5) after generating the bonding point (4);
distributing the molten material reservoir (5) at least over the bonding point (4) to produce an insulating structure (15) that insulates at least the conductor ends (3) from surroundings.