公开(公告)号：US20230049325A1

公开(公告)日：2023-02-16

申请号：US17644265

申请日：2021-12-14

Applicant: SOLUM CO., LTD.

Inventor： Chang Yong KWON ,  Dong Kyun RYU ,  Yun Sic BANG ,  Sang Keun JI

IPC: H01F27/29 ,  H01F27/24 ,  H05K1/18 ,  H05K1/11 ,  H02M1/42

Abstract: A transformer includes: a magnetic core including a lower magnetic structure and an upper magnetic structure; a printed circuit board arranged between the lower magnetic structure and the upper magnetic structure and including a core hole through which a midsection of the magnetic core penetrates, a primary coil, a secondary coil, a primary via-hole formed at an end of the printed circuit board and electrically connected to the primary coil, and a secondary via-hole formed at another end of the printed circuit board and electrically connected to the secondary coil; a primary pin inserted into the primary via-hole; a secondary pin inserted into the secondary via-hole; an insulating block into which a portion of the printed circuit board is inserted; and a mount on which the printed circuit board and the insulating block are mounted.

公开(公告)号：US20220285069A1

公开(公告)日：2022-09-08

申请号：US17648883

申请日：2022-01-25

Applicant: SOLUM CO., LTD.

Inventor： Chang Yong KWON ,  Dong Kyun RYU ,  Yun Sic BANG

IPC: H01F27/06 ,  H01F27/32

Abstract: A base includes a support plate, an inner wall provided on the support plate, an outer wall arranged apart from the inner wall in a first direction parallel to an upper surface of the support plate, and an insulating cover protruding from the outer wall in the first direction, wherein the outer wall and the inner wall extend in a second direction crossing the first direction.

公开(公告)号：US20220277888A1

公开(公告)日：2022-09-01

申请号：US17676268

申请日：2022-02-21

Applicant: SOLUM CO., LTD.

Inventor： Chang Yong KWON ,  Dong Kyun RYU ,  Yun Sic BANG

IPC: H01F27/29 ,  H01F27/30 ,  H01F27/24 ,  H05K5/00 ,  H05K5/03 ,  H01F27/32

Abstract: A transformer having a reverse structure includes: a bobbin part including an inner bobbin and an outer bobbin including, respectively, body parts having through-holes formed therein and having a tubular shape and flange portions protruding outwardly from both ends of the body parts; coils respectively wound in the inner bobbin and the outer bobbin; and a core electrically coupled to the coils to form a magnetic circuit, wherein the inner bobbin and the outer bobbin include, respectively, external connection terminals fastened to one ends of the flange portions formed at an upper end of the body part and bent in a downward direction.