Direct current filter

The utility model discloses a direct current filter and relates to the technical field of electric power equipment. The direct current filter comprises a first filter chip, a second filter chip, a metal outer shell and an electric connector, wherein the first filter chip is formed by wrapping a first filter component with the metal outer shell, the second filter chip is formed by wrapping a second filter component with the metal outer shell, the first filter chip is connected with the second filter chip in parallel, the outer surface of the metal outer shell is provided with a groove, a shielding and sealing strip is arranged in the groove, the electric connector is connected with the metal outer shell through the groove, and the surface of the electric connector is provided with a shielding cover. According to the direct current filter, shielding and sealing effects are improved, that full play can be given to the performance of the filter can be ensured, the work efficiency of the filter can be improved, and energy loss can be lowered.