Electrical connector with fixed housing, floating housing, elastic terminal mounted therein and electrical connector assembly using the same

An electrical connector comprising:

• an insulative fixing seat which has a terminal receiving groove therein, a bottom portion of the terminal receiving groove having a terminal fixing groove which extends horizontally;
• an insulative floating seat floatingly mounted above the insulative fixing seat, the insulative floating seat having an insertion hole which penetrates up and down, and an outer wall of the insulative floating seat being provided with an annular groove;
• a floating terminal comprising a soldering tail portion, a horizontal fixing portion which is connected with the soldering tail portion and extends horizontally, a mating portion and a float connecting portion which is elastically connected between the mating portion and the horizontal fixing portion, the horizontal fixing portion being fixed to the insulative fixing seat in the terminal fixing groove, the float connecting portion being floatingly received in the terminal receiving groove, the mating portion upwardly extending into the insertion hole of the insulative floating seat, and the soldering tail portion extending outwardly from an outer side of the insulative fixing seat;
• and
• a conductive shell which partially sheathes the outer side of the insulative fixing seat, the conductive shell having a plurality of elastic mating pieces which extend upwardly, and a tip of each elastic mating piece extending into the annular groove and engaging with the insulative floating seat to prevent the insulative floating seat from being detached from the insulative fixing seat while allowing the insulative floating seat to move relative to the insulative fixing seat.