Electrical connector and affixing member

Claim 1

An electrical connector to be affixed to an insertion hole in a board, the connector comprising: a pin having an outer diameter; and a housing, the housing comprising an integral cylindrical member situated in a recess provided on a lower surface side of the housing of the electrical connector, said cylindrical member being configured to be insertable in a substantially coaxially manner within the insertion hole in the board, having an outer diameter smaller than an inner diameter of the insertion hole in the board to enable the cylindrical member to be inserted into the board insertion hole with zero or a small insertion force, and having a hollow section for receiving the pin substantially coaxially with the insertion hole in the board where at least a portion of the hollow section of the cylindrical member has an inner diameter smaller than the outer diameter of the pin, the cylindrical member further having a plurality of segmented outer peripheral portions enabling at least a portion of the cylindrical member to split along a direction when the pin is fully inserted and a connecting member for connecting the plurality of outer peripheral portions together at a forward end of the cylindrical member, the force of said pin on said portion of the cylindrical member causing the outer diameter of the cylindrical member to be enlarged to affix a portion of the cylindrical member to the insertion hole of the board when the pin is fully inserted into the hollow section of the cylindrical member.