公开(公告)号：US20240339256A1

公开(公告)日：2024-10-10

申请号：US18297292

申请日：2023-04-07

Applicant: ABB Schweiz AG

Inventor： Dorai Yelaverthi ,  Harish Suryanarayana ,  Arun Kadavelugu

IPC: H01F27/26 ,  H01F27/28 ,  H01F41/02 ,  H01F41/04

CPC classification number: H01F27/26 ,  H01F27/28 ,  H01F41/0206 ,  H01F41/04

Abstract: A device includes a core structure including a first end plate and a second end plate. The first end plate and second end plate include a first portion and a second portion that extend from opposing sides of a third portion and include an increasing cross-sectional area configured to provide soft saturation properties in response to increasing electrical current. The core structure may further include a coil member and a core section. The core section is disposed between the first plate member and second plate member. The core section includes a first core member, a second core member, and a central disc member. The core section also includes a channel formed between the central disc member and the first core member and the second core member to enable the coil member to circumferentially wind around the central disc member.

公开(公告)号：US20240355531A1

公开(公告)日：2024-10-24

申请号：US18304152

申请日：2023-04-20

Applicant: ABB Schweiz AG

Inventor： Harish Suryanarayana ,  Dorai Yelaverthi ,  Arun Kadavelugu

IPC: H01F27/28 ,  H01F27/26 ,  H01F41/02 ,  H01F41/04

CPC classification number: H01F27/2823 ,  H01F27/26 ,  H01F41/0206 ,  H01F41/04

Abstract: A device may include a core structure having low permeability characteristics and defining a first cross-sectional area, a coil member including one or more loops that winds around the core structure and defines a second cross-sectional area. The second cross-sectional area is between 1.2 to 5 times larger than the first cross-sectional area. The device may include a frame member positioned around the core structure or a portion thereof and the coil member may wind around the frame member to define the second cross-sectional area. The core structure may be composed of a low permeability magnetic material having a low relative permeability. The core structure may be composed of a high permeability magnetic material and the core structure may further include an air gap structure to enable the core structure to demonstrate the low permeability characteristics.