Abstract
AbstractTo decrease the insertion force of multipin electrical connectors in communication equipment, the tip shape of the male connector was analyzed theoretically, and a model experiment of contact insertion was carried out. From comparison of the theoretical and experimental results, the following results were obtained: (1) if the friction between contacts in connector insertion is not taken into account, a root curve shape is the optimum tip shape; and (2) the insertion experiment using a model for a male connector tip agrees with the theoretical result. As a result, it was shown that the friction between the contacts has an important role, and that to reduce the insertion force, the shape of the tip must be designed with friction taken into account.From the foregoing results, the connector tip was designed to make the insertion force constant regardless of friction. By investigating the force reduction using a multipin connector of about 200 pins, the evaluation based on the tip shape was found to be valid.
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