Direct-current busbar for frequency converter of electric vehicle

The utility model discloses a DC busbar for an electric vehicle frequency converter, comprising an electric vehicle frequency converter and a DC busbar installed on the electric vehicle frequency converter, both sides of the electric vehicle frequency converter are provided with guide grooves, the guide grooves are internally provided with guide blocks, one end of each of the two groups of guide blocks deviating from each other is fixedly provided with a sleeve, and the other end of each of the two groups of guide blocks deviating from each other. And connecting rods are fixed to the outer walls of the front ends of the two sets of sleeves, movable plates are fixed to the front ends of the two sets of connecting rods, cleaning blocks are fixed to the outer walls of the rear ends of the movable plates, and positioning assemblies are arranged in the sleeves. Through mutual cooperation of a guide groove, a guide block, a sleeve, a connecting rod, a movable plate and a cleaning block, when the guide block slides