Method for improving temperature uniformity of power battery box

The invention belongs to the field of new energy automobile power battery boxes, and particularly relates to a method for improving temperature uniformity of a power battery box, which comprises the following steps: constructing a thermal simulation calculation model of the power battery box; the thermal simulation calculation model of the power battery box comprises a geometric structure of the power battery box, parameter information of a battery and material information of the battery; setting a structure parameter value corresponding to the geometric structure of the power battery box; the power battery boxes with the same structural parameter values are adopted for an entity experiment, and cooling air information of cooling air in the entity power battery boxes and average temperature information of battery packs in a heat balance state when the entity power battery boxes are in a working mode are obtained; the average temperature information and the cooling air information serve as input of a thermal s