US 11,990,267 B2
Three-phase magnetics assembly
Lei Shi, Kowloon (HK); and Yuk Man Shing, Kowloon (HK)
Assigned to Astec International Limited, Kowloon (HK)
Filed by Astec International Limited, Kowloon (HK)
Filed on Sep. 23, 2020, as Appl. No. 17/029,294.
Prior Publication US 2022/0093325 A1, Mar. 24, 2022
Int. Cl. H01F 27/30 (2006.01); H01F 3/14 (2006.01); H01F 27/26 (2006.01); H01F 27/29 (2006.01); H01F 30/12 (2006.01); H02M 3/335 (2006.01)
CPC H01F 27/306 (2013.01) [H01F 3/14 (2013.01); H01F 27/263 (2013.01); H01F 27/29 (2013.01); H01F 30/12 (2013.01); H02M 3/33592 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A three-phase magnetics assembly comprising:
a plurality of windings; and
a unified core body having a plurality of core legs which each extend in a direction of central axes of the plurality of windings and around which the plurality of windings are wound such that magnetic fluxes are produced in the plurality of core legs when current flows through the plurality of windings;
wherein the plurality of windings comprise first, second, and third phase inductors, and first, second, and third phase transformers, which are positioned about the unified core body such that the core legs of the first phase inductor and second phase transformer share a central axis, the core legs of the second phase inductor and third phase transformer share a central axis, and the core legs of the third phase inductor and first phase transformer share a central axis; and
wherein a winding direction of the first, second, and third phase inductors is opposite a winding direction of the first, second, and third phase transformers.