Connector assembly with improved heat dissipation effect for being reliably fixed to circuit board

A connector assembly, comprising:

• an electrical connector comprising an insulating body and a plurality of conductive terminals, the insulating body comprising a mating slot configured to receive a mating connector, the plurality of conductive terminals being configured to be mounted to a circuit board;
• a metal shielding cage shielding a periphery of the electrical connector, the metal shielding cage comprising a receiving chamber communicating with the mating slot, the receiving chamber and the mating slot being configured to jointly receive the mating connector along a first direction, the first direction being perpendicular to the circuit board;
• a heat sink mounted to the metal shielding cage;
• and
• a fastening member passing through the circuit board and being fastened to the heat sink;
• wherein the metal shielding cage comprises a first end wall, a first side wall, a second side wall opposite to the first side wall, and a second end wall opposite to the first end wall;
• and wherein the receiving chamber is jointly enclosed by the first end wall, the first side wall, the second side wall and the second end wall;
• wherein the metal shielding cage comprises an inner metal shell fixed to the first side wall and the second side wall;
• the inner metal shell divides the receiving chamber into a first receiving chamber and a second receiving chamber located on two sides of the inner metal shell, respectively;
• wherein the inner metal shell comprises a top wall, a first fixing wall bent downwardly from one side of the top wall, and a second fixing wall bent downwardly from another end of the top wall;
• wherein the inner metal shell further comprises an opening surrounded by the top wall, the first fixing wall and the second fixing wall;
• and
• wherein the connector assembly further comprises a mounting block installed in the opening.