COIL COMPONENT

• Main Authors: HASHIMOTO RYOTA, MAEDA MASAYOSHI, TEI HIROYUKI, YAMAGUCHI CHIHIRO, KOBAYASHI KOHEI
• Format: Patent
• Language: English; Japanese
• Published: 12.10.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

PROBLEM TO BE SOLVED: To obtain a satisfactory mode conversion property while increasing the number of turns of wires for obtaining a high inductance value in a common-mode choke coil as one example of a coil component.SOLUTION: A wire aggregate 44 consisting of two wires that are twisted each other is wound around a winding core part 45. The wire aggregate 44 constitutes: an inner layer portion N in which the wire aggregate is wound in contact with a peripheral surface of the winding core part 45 with a side of a first end portion 46 of the winding core part 45 defined as a starting end; an outer layer portion G in which the wire aggregate is wound at an outer peripheral side of the inner layer portion N; an outward shift portion in which the wire aggregate is shifted from the inner layer portion N to the outer layer portion G; and an inward shift portion in which the wire aggregate is shifted from the outer layer portion G to the inner layer portion N. The wire aggregate 44 is pulled out of an intermediate position of the inner layer portion N in a winding central axis direction by the outward shift portion, constitutes the outer layer portion G and is next returned to the intermediate position of the inner layer portion N by the inward shift portion.SELECTED DRAWING: Figure 2 【課題】コイル部品の一例としてのコモンモードチョークコイルにおいて、高いインダクタンス値を得るためにワイヤのターン数を増やしながらも、良好なモード変換特性を得ることができるようにする。【解決手段】互いに撚り合わされた２本のワイヤからなるワイヤ集合体４４が巻芯部４５のまわりに巻回される。ワイヤ集合体部分４４は、巻芯部４５の第１の端部４６側を始端として巻芯部４５の周面に接する状態で巻回された内層部分Ｎと、内層部分Ｎの外周側に巻回された外層部分Ｇと、内層部分Ｎから外層部分Ｇへと移行される外向き移行部分と、外層部分Ｇから内層部分Ｎへと移行される内向き移行部分と、を構成する。ワイヤ集合体部分４４は、内層部分Ｎの巻回中心軸方向での中間位置から外向き移行部分によって引き出されて外層部分Ｇを構成し、次いで、内向き移行部分によって内層部分Ｎの上記中間位置に戻される。【選択図】図２