Modular structure for rectangular battery pack applied to spacecraft

The invention provides a modular structure for a rectangular battery pack applied to a spacecraft. The modular structure comprises battery monomers, regulating pieces, pressure plates, end plates anda bottom plate. The battery monomers and the regulating pieces form a relatively independent small module through left and right pressure plates and front and rear end plates. The left and right pressure plates can realize limit in width and height directions. The size and number of the regulating pieces between monomers in the small module can be changed to adjust the length of the small module.After the three-dimensional size of the small module is adjusted, the small module can be directly inserted into an integrated large bottom plate and fixed by screws. Heat-conducting glue is pre-coated between monomer pores in the small module and between the small module and the bottom plate to enhance the mechanical properties and thermal conductivity of the entire battery pack. The structure has the characteristics of m