COIL DEVICE

• Main Authors: OTSUKA MASATO, KAWASAKI HITOHIRO, KITAMURA TAISHI
• Format: Patent
• Language: English; Japanese
• Published: 11.03.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

To provide a coil device capable of preventing occurrence of short circuit failure.SOLUTION: A coil device 1 includes: a core 10 including a core part 12 and a flange part 14 formed at an end part in an X-axis direction of the core part 12; a coil part 30 formed by winding wires 31, 32 around the core part 12; and terminal electrodes 41, 42 which are provided in the flange part 14 and to which lead-out parts 310, 320 of the wires 31, 32 are connected, respectively. On the upper surface 14a of the flange part 14 in which at least some of the terminal electrodes 41, 42 are arranged, a main ridge part 144 having a ridge shape is formed. A second lead-out part 320 of a second wire 32 is connected to a second terminal electrode 42 on the outer side than the main ridge part 144 in the X-axis direction.SELECTED DRAWING: Figure 1A 【課題】ショート不良の発生を防止することが可能なコイル装置を提供すること。【解決手段】コイル装置１は、巻芯部１２および巻芯部１２のＸ軸方向の端部に形成された鍔部１４を含むコア１０と、巻芯部１２にワイヤ３１，３２を巻回してなるコイル部３０と、鍔部１４に設けられ、ワイヤ３１，３２の引出部３１０，３２０がそれぞれ接続される端子電極４１，４２と、を有する。端子電極４１，４２の少なくとも一部が配置される鍔部１４の上面１４ａには、隆起形状を有する主隆起部１４４が形成されており、第２ワイヤ３２の第２引出部３２０は、主隆起部１４４よりもＸ軸方向の外側で第２端子電極４２に接続される。【選択図】図１Ａ