Terminal assembly structure

A terminal assembly structure comprising:

• a terminal having a crimp portion configured to crimp and connect to a core wire of an electric wire and a fastening portion configured to be fastened by a fastening member;
• and
• a holder having a base configured to mount the terminal when fastening the terminal to the holder, wherein
• the holder has a plurality of ribs extending in a fastening direction of the fastening member and arranged around the fastening portion of the terminal when the fastening portion is set and positioned onto the base,
• the plurality of ribs are reinforcement ribs integrally projecting from an inner circumferential surface of a peripheral wall of the holder toward a side where the base is arranged,
• the plurality of ribs comprises:
• a plurality of guide ribs configured to abut on both side parts on the fastening portion of the terminal and to guide the terminal into the holder;
• and
• a plurality of abutment ribs configured to abut on a tip with arcuate shape of the fastening portion of the terminal, and
• the fastening portion is configured to be set and positioned onto the base from an opposite side with respect to a side where an abutment rid of the plurality of abutment ribs is provided when mounting onto the base.