US 12,445,049 B2
EMC filter for electromagnetic regulation of converter and manufacturing method thereof
Tae Ho Bang, Seoul (KR); Ji Hoon Park, Suwon-si (KR); Hyun Woo Shim, Suwon-si (KR); Du Ho Kim, Yongin-si (KR); Soo Min Jeon, Yongin-si (KR); Deok Kwan Choi, Yongin-si (KR); Won Gon Kim, Yongin-si (KR); Min Heo, Seongnam-si (KR); Kang Min Kim, Seoul (KR); and A Ra Lee, Seongnam-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Nov. 19, 2021, as Appl. No. 17/530,756.
Claims priority of application No. 10-2020-0157098 (KR), filed on Nov. 20, 2020.
Prior Publication US 2022/0166310 A1, May 26, 2022
Int. Cl. H01F 27/28 (2006.01); B60L 53/20 (2019.01); H01F 3/14 (2006.01); H01F 17/06 (2006.01); H01F 41/02 (2006.01); H02M 1/44 (2007.01)
CPC H02M 1/44 (2013.01) [B60L 53/20 (2019.02); H01F 3/14 (2013.01); H01F 17/06 (2013.01); H01F 27/2847 (2013.01); H01F 41/0206 (2013.01); H01F 2017/065 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electro-magnetic compatibility (EMC) filter includes:
a lower bobbin having a U-shaped cross-sectional shape;
a lower core including a magnetic material having a U-shaped cross-sectional shape and disposed on the lower bobbin;
a bus bar disposed on the lower core;
an upper bobbin having a hollow inside, having a hexahedral shape with one side open, and covering an upper portion of the lower bobbin; and
an upper core including a magnetic material having a plate-like shape, disposed in an internal space of the upper bobbin, and disposed on the lower core to cover the bus bar with a gap maintained by the bus bar between the upper and lower cores when the lower bobbin and the upper bobbin are coupled to each other,
wherein the bus bar includes:
a first bus bar disposed in a space defined by the U-shaped cross-sectional shape of the lower core and including an upper surface extending below a height level of a portion of the lower core overlapping the gap; and
second and third bus bars configured to extending from respective upper end surfaces of two ends of the first bus bar in opposite directions away from each other.