COIL DEVICE

原文（中国語）

A coil device including: a core part including a metal powder and resin, a first conductor including a first coil part inside the core part, a first mounting part at least partially exposed from the core part and faces a mounting object, and a first connecting part connecting the first coil and first mounting parts, a second conductor including a second coil part inside the core part, a second mounting part at least partially exposed from the core part and faces the mounting object, and a second connecting part connecting the first coil and first mounting parts, wherein; a groove forms to the first coil part inner surface along a winding direction, the second coil part extends along the first coil part winding direction inside of the first coil part, and the second coil part is at least partially arranged inside the groove of the first coil part.