US 11,990,270 B2
Bus bar for minimizing AC loss in transformer and method of designing the same
Tae Ho Bang, Seoul (KR); Deok Kwan Choi, Yongin-si (KR); Won Gon Kim, Yongin-si (KR); Min Heo, Seongnam-si (KR); Ji Hoon Park, Suwon-si (KR); Kang Min Kim, Seoul (KR); A Ra Lee, Seongnam-si (KR); Hyun Woo Shim, Suwon-si (KR); Du Ho Kim, Suwon-si (KR); and Soo Min Jeon, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Nov. 23, 2021, as Appl. No. 17/533,586.
Claims priority of application No. 10-2020-0158122 (KR), filed on Nov. 23, 2020.
Prior Publication US 2022/0165490 A1, May 26, 2022
Int. Cl. H01F 38/32 (2006.01); H01F 27/42 (2006.01)
CPC H01F 27/427 (2013.01) [H01F 38/32 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A bus bar provided as a winding around a center leg of a core of a transformer, the bus bar comprising multiple sub-bars arranged horizontally and connected in parallel,
wherein the multiple sub-bars are horizontally arranged, surrounding the center leg, and a respective sub-bar has a width in a horizontal direction,
wherein the multiple sub-bars comprise an inner sub-bar being closer to the center leg of the core and an outer sub-bar being located at an outer side of the inner sub-bar,
wherein the width of the inner sub-bar is less than that of the outer sub-bar,
wherein the inner sub-bar comprises a first end and a second end, both of which are disconnected,
wherein the outer sub-bar comprises a first end and a second end, both of which are disconnected, and
wherein the first end of the inner sub-bar and the first end of the outer sub-bar are bonded to each other, and the second end of the inner sub-bar and the second end of the outer sub-bar are bonded to each other.