Interference magnetic field generating device and card reader

The invention provides an interference magnetic field generating device and a card reader, which can suppress noise generated by vibration of an iron core. In the interference magnetic field generating device for the card reader, a first gap (G1) is arranged between a cylindrical main body part (150) of a bobbin (15) and an iron core (11); the cylindrical main body part and the iron core are bonded by a soft adhesive (R1) provided in the first gap. A second gap (G2) is provided between the coil (12) and the circuit board (13), and the circuit board (13) and the coil (12) are bonded by a soft adhesive (R2) provided in the second gap. Third gaps (G31, G32) are provided between the housing (16) and the inner wall (48) of the housing accommodating section (40) in the direction of extension of the iron core in which vibration is easily transmitted. The housing (16) and the inner wall (48) of the housing accommodating section (40) are bonded by a soft adhesive (R3) provided in the third gaps (G31, G32). 一种干扰磁场产生装置和