LAMINATED COIL COMPONENT

• Main Authors: EBINA KAZUHIRO, MIURA KAZUHIRO, KAWASAKI KUNIHIKO, SATO SHINICHI, NAGAI YUSUKE, TSUNODA KOICHI, NAKAGAWA SEIICHI, SUZUKI TAKASHI, KONDO SHINICHI, KOIKE MITSUHARU
• Format: Patent
• Language: English; Japanese
• Published: 07.04.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

To provide a laminated coil component which achieves improvement of inductance and improvement of insulation properties between conductor parts.SOLUTION: The laminated coil component includes an element assembly including a plurality of metal magnetic particles MM and a resin RE existing between the plurality of metal magnetic particles, and a coil that is arranged in the element assembly and includes a plurality of mutually electrically connected coil conductors C. At least a part of the plurality of coil conductors has a spiral shape, and has conductor parts SC1 adjacent to each other when viewed from a direction along a coil axis of the coil. The plurality of metal magnetic particles MM included in the element assembly has a particle diameter a third or more and a half or less a distance between the mutually adjacent conductor parts in the coil conductor C. The metal magnetic particles MM having the particle diameter are aligned in an opposite direction of the conductor parts between the mutually adjacent conductor parts in the coil conductor.SELECTED DRAWING: Figure 5 【課題】インダクタンスの向上と、導体部間の絶縁性の向上を図れる積層コイル部品を提供する。【解決手段】積層コイル部品は、複数の金属磁性粒子ＭＭと、複数の金属磁性粒子間に存在している樹脂ＲＥとを含んでいる素体と、素体内に配置されていると共に、互いに電気的に接続されている複数のコイル導体Ｃを含んで構成されているコイルと、を備えている。複数のコイル導体の少なくとも一部は、渦巻き状であり、コイルのコイル軸に沿った方向から見て、互いに隣り合っている導体部ＳＣ１を有している。素体に含まれる複数の金属磁性粒子ＭＭは、コイル導体Ｃにおいて互いに隣り合っている導体部の間の距離の１／３以上１／２以下である粒子径を有する。コイル導体において互いに隣り合っている導体部の間では、粒子径を有する金属磁性粒子ＭＭが、当該導体部の対向方向に沿うように並んでいる。【選択図】図５