Preliminary Experimental Study on the Insertion and Withdrawal Characteristics of Blade and Receptacle Pair

The structure and dimensions of blade and receptacle pair directly influence the insertion and withdrawal process and current carrying capability of electrical connectors. In this paper, a commercial blade and receptacle pair is selected for analytical and experimental studies. Firstly, the relevant mathematic model for insertion and extraction force calculation is presented. Next, the typical waveforms of insertion/extraction force, contact resistance and deflection of receptacle are measured simultaneously and interpreted explicitly. The effects of motion speed and assembling position on the insertion characteristics are compared and analyzed. Finally, under the repetitive mechanical insertion and withdrawal experiments, the degradation behavior and associated physical mechanism are determined.