A connector and a connector assembly

摘要

An object of the present invention is to prevent a connector housing from being fitted into a receptacle of a mating connector when a terminal fitting is left partly inserted. Extending portions 37 of a housing retainer 34 are formed with slanted surfaces 38A, whereas a main portion 35 thereof is formed with a vertical wall 39A. Thus, when a holder 11 is fitted into a receptacle 53 while the housing retainer 34 is forgotten to be pushed into an accommodating portion 22 although auxiliary connectors 60 are inserted to proper positions, the fitting operation smoothly proceeds since the slanted surfaces 38A guide the housing retainer 34 into the accommodating portion 22. On the other hand, if the fitting operation is performed although the auxiliary connectors 60 are not pushed to the proper positions, the slanted surfaces 38A are squashed, but then the vertical wall 39A comes into surface contact with an opening-end surface 57A to prevent the fitting operation from being performed any further. As a result, the presence of the auxiliary connector 60 not inserted to a proper depth can be detected.