Direct-current variable-frequency refrigeration dryer controller

The utility model discloses a direct-current variable-frequency refrigeration dryer controller which comprises a refrigeration dryer controller body and a disassembly and assembly mechanism. A connecting block is fixedly connected to one side of the freezing dryer controller body, and a through groove is formed in the connecting block; the dismounting and mounting mechanism comprises a rod body inserted into the through groove and a limiting plate tightly attached to the outer side of the freezing dryer controller body, one end of the rod body is fixedly connected with a threaded rod, and an empty groove is formed in the rod body; according to the direct-current variable-frequency refrigeration dryer controller, the disassembly and assembly mechanism is arranged on the refrigeration dryer controller body, after one side of the refrigeration dryer controller body is tightly attached to a limiting plate, a rod body can penetrate through a through groove of a connecting block, and therefore a check block can mov