| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic induction device in which adjustment of inductance value is facilitated.SOLUTION: A electromagnetic induction device includes a coil 2, a core body 4 of dust-based core arranged in a magnetic circuit formed by energization of the coil 2, and an additional core 5 arranged on the outside of the core body 4 and forming a part of the magnetic circuit. The additional core 5 is arranged at at least one end out of both ends of the core body 4 in the axial direction C of the coil 2. The core body 4 has an E-shaped or a U-shaped core piece, in the front view, and the additional core 5 has a longitudinal direction in parallel with the axial direction C of the coil 2, and is arranged on the outer side face of an outer leg included in the E-shaped core piece, or on the outer side face of the U-shaped core piece. |
