Time control device for assisting in testing power-off potential

The utility model relates to the technical field of power-off potential testing, in particular to a time control device for assisting in testing power-off potential, which comprises a control box. A box door is arranged on one side of the control box, a rotary connecting assembly is arranged on the box door, the box door is rotationally connected with the control box through the rotary connecting assembly, a mounting hole is formed in the box door, a cooling fan and a filter screen are arranged on the inner side of the mounting hole, two mounting strips are symmetrically arranged on the inner side face of the box door, and a plurality of cooling fins are arranged between the two mounting strips. A heat conduction plate is arranged in the control box, the horizontal section of the heat conduction plate is of a U-shaped structure, the interior of the control box is divided into an inner cavity and an outer cavity through the heat conduction plate, a controller body is arranged in the inner cavity, a plurality o