Battery cold plate runner topological optimization method considering size constraint

The invention discloses a battery cold plate flow channel topological optimization method considering size constraints. The topological optimization method comprises the following steps: establishing a two-dimensional cold plate model to determine topological optimization parameters and cooling liquid thermophysical parameters; performing density filtering and projection on the finite element twice to obtain element material density; establishing a design domain material interpolation function; constructing an objective function and an optimization criterion, applying a boundary condition, and establishing a topological optimization model; selecting a two-dimensional solver to analyze and solve according to the model; and carrying out convergence judgment, and if conditions are met, obtaining a design scheme. According to the battery cold plate flow channel topological optimization method considering the size constraint, the purpose of cooperatively controlling the minimum size and the maximum size is achieve