(19)
(11) EP 4 325 702 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
22.05.2024 Bulletin 2024/21

(43) Date of publication:
21.02.2024 Bulletin 2024/08

(21) Application number: 22190855.1

(22) Date of filing: 17.08.2022
(51) International Patent Classification (IPC): 
H02K 15/04(2006.01)
(52) Cooperative Patent Classification (CPC):
H02K 15/0442
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(71) Applicant: Nortech System SA
6828 Balerna (CH)

(72) Inventor:
  • RIVARA, Antonio
    6828 Balerna (CH)

(74) Representative: M. Zardi & Co S.A. 
Via G. B. Pioda, 6
6900 Lugano
6900 Lugano (CH)

   


(54) PROCESS FOR MAKING CORELESS WINDINGS


(57) Process for making a winding for a coreless type coil, in which the process comprises: making a flat winding (100) formed by turns of conducting wire joined by a binder, obtaining a plastically deformable winding having a closed loop configuration, elongated in a longitudinal direction (A-A); subjecting the winding to shaping, in which the winding (100) is bent thus forming a first wing (113) bent in an arc of circumference having a first curvature radius, and on the opposite side a second wing (114) bent in an arc of circumference having a second curvature radius smaller than the first one, and a stepped connection area (110) between said two wings; the shaped winding (120) thus obtained being adapted to form a portion of a coreless coil.