发明授权
- 专利标题: Inductor element
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申请号: US15968036申请日: 2018-05-01
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公开(公告)号: US10984941B2公开(公告)日: 2021-04-20
- 发明人: Yasuhide Yamashita , Katsushi Yasuhara , Chiomi Sato , Syota Goto
- 申请人: TDK CORPORATION
- 申请人地址: JP Tokyo
- 专利权人: TDK CORPORATION
- 当前专利权人: TDK CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff PLC
- 优先权: JPJP2017-091663 20170502
- 主分类号: H01F27/255
- IPC分类号: H01F27/255 ; H01F17/00 ; B29C43/18 ; H01F27/02 ; H01F41/04 ; B29C43/14 ; H01F17/04 ; H01F1/36 ; B29L31/34 ; B29K705/00
摘要:
An inductor element includes a wire-winding portion and a core portion. In the wire-winding portion, a conductor is wound in a coil shape. The core portion surrounds the wire-winding portion and contains a magnetic powder and a resin. An inner-core central region is a region of the core portion within a distance from a winding axis center of the wire-winding portion toward an existing region of the wire-winding portion in an outward direction perpendicular to the winding axis center. A top-plate central region is a region of the core portion within a distance from the winding axis center toward a no-existing region of the wire-winding portion in the outward direction. Sα−Sβ≥−2% is satisfied, where Sα (%) and Sβ (%) are respectively an area ratio of the magnetic powder in the inner-core central region and the top-plate central region.
公开/授权文献
- US20180322998A1 INDUCTOR ELEMENT 公开/授权日:2018-11-08
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