US 12,463,488 B2
Coil component having a closure element without direct contact to the carrier; and electric machine
Martin Chambrion, Erstein (FR); Michael Marsetz, Ettlingen (DE); Johannes Dollansky, Bühlertal (DE); and Cédric Blaes, Munchhausen (FR)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 18/019,306
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Jul. 21, 2021, PCT No. PCT/DE2021/100631
§ 371(c)(1), (2) Date Feb. 2, 2023,
PCT Pub. No. WO2022/033627, PCT Pub. Date Feb. 17, 2022.
Claims priority of application No. 102020121057.4 (DE), filed on Aug. 11, 2020.
Prior Publication US 2023/0336046 A1, Oct. 19, 2023
Int. Cl. H02K 3/48 (2006.01); H02K 3/34 (2006.01); H02K 3/487 (2006.01)
CPC H02K 3/487 (2013.01) [H02K 3/345 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A coil component for an electric machine, the coil component comprising:
a carrier;
a coil winding received in the carrier at least in sections;
the carrier has a ring region with multiple grooves distributed in a circumferential direction;
multiple winding sections of the coil winding are received in each said groove;
an insulation layer arranged between the carrier and the winding sections in at least one groove of the multiple grooves, the insulation layer projects with two extension portions over the winding sections in the at least one groove towards a radial opening of the at least one groove; and
a closure element received in the carrier in the at least one groove provided with the insulation layer with a form fit towards the radial opening, both of the extension portions are configured such that the closure element is spaced apart from the carrier by the extension portions, and the closure element is holeless from a first axial end of the closure element to a second axial end of the closure element.