US 11,657,961 B2
Method and conductor structure for manufacturing an electric winding of an electromagnetic induction apparatus
Gianluca Bustreo, Venice (IT); Paolo Pavanello, Granze (IT); Massimo Carmignoto, Montegrotto Terme (IT); and Roberto Zannol, Montegrotto Terme (IT)
Assigned to Hitachi Energy Switzerland AG, Baden (CH)
Appl. No. 17/631,521
Filed by Hitachi Energy Switzerland AG, Baden (CH)
PCT Filed Dec. 28, 2020, PCT No. PCT/EP2020/087937
§ 371(c)(1), (2) Date Jan. 31, 2022,
PCT Pub. No. WO2021/151610, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 20154715 (EP), filed on Jan. 30, 2020.
Prior Publication US 2022/0270809 A1, Aug. 25, 2022
Int. Cl. H01F 7/06 (2006.01); H01F 41/061 (2016.01); H01F 41/12 (2006.01); H01F 27/28 (2006.01)
CPC H01F 41/061 (2016.01) [H01F 41/122 (2013.01); H01F 2027/2838 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for manufacturing an electric winding of an electromagnetic induction apparatus, the method comprising:
providing a conductor structure comprising a conductor element extending longitudinally along a main extension direction and a spacer band arranged on a lateral surface of the conductor element, the spacer band comprising a supporting structure made of electrically insulating material and a plurality of spacer elements made of electrically insulating material arranged on the supporting structure, the plurality of spacer elements being spaced one from another along the supporting structure; and
forming the electric winding by the conductor structure, the electric winding extending axially along a winding direction and having a plurality of turns arranged around the winding direction,
wherein each turn of the electric winding is formed by a corresponding longitudinal portion of the conductor structure,
wherein the plurality of spacer elements are interposed between adjacent turns of the electric winding at opposite sides of the plurality of turns, and
wherein the plurality of spacer elements are arranged to pass through the supporting structure and protrude from opposite surfaces of the supporting structure.