Common mode inductor, filter and refrigerator

The utility model discloses a common mode inductor, a filter and a refrigerator, the common mode inductor comprises a magnetic core and a coil, the magnetic core comprises an upper magnet yoke and a lower magnet yoke, a first magnetic column and a second magnetic column are connected between the upper magnet yoke and the lower magnet yoke, and the first magnetic column and the second magnetic column are arranged side by side at an interval; the coil is wound on the first magnetic column and the second magnetic column; the area proportion of the cross section area of the magnetic material in the height direction on the whole magnetic core is at least 80%, so that the common mode inductor is unsaturated and has better high-frequency performance, and the problem that the filtering target cannot be achieved due to failure caused by saturation when the common mode inductor is used for a refrigerator is effectively solved. 本实用新型公开了共模电感、滤波器和冰箱，其中共模电感包括磁芯和线圈，磁芯包括上磁轭和下磁轭，上磁轭与下磁轭之间连接有第一磁柱和第二磁柱，第一磁柱和第二磁柱并排且间隔设置；线圈绕设于第一磁