Wire-to-board connector and assembly thereof with improved layout of conductive terminals

A wire-to-board connector assembly, comprising:

• a circuit board comprising a plurality of metal conductive pads;
• a wire-to-board connector mounted on the circuit board;
• and
• a fastener fixing the wire-to-board connector to the circuit board;
• wherein the wire-to-board connector comprises:
• an insulating body comprising a first surface;
• a plurality of first conductive terminals arranged at intervals along a first direction, each first conductive terminal comprising a first elastic mating portion, at least part of the plurality of first conductive terminals comprising a first cable connection portion;
• a plurality of second conductive terminals arranged at intervals along the first direction, each second conductive terminal comprising a second elastic mating portion, at least part of the plurality of second conductive terminals comprising a second cable connection portion;
• the first elastic mating portion, the first cable connection portion, the second elastic mating portion and the second cable connection portion being arranged in sequence along a second direction which is perpendicular to the first direction;
• the first cable connection portions of the plurality of first conductive terminals being flush with the second cable connection portions of the plurality of second conductive terminals;
• a plurality of first cables connected to the first cable connection portions of the plurality of first conductive terminals;
• and
• a plurality of second cables connected to the second cable connection portions of the plurality of second conductive terminals;
• wherein the first cable connection portions of the plurality of first conductive terminals and the second cable connection portions of the plurality of second conductive terminals are arranged in a misalignment manner along the second direction, so that the first cable connection portions of the plurality of first conductive terminals and the second cable connection portions of the plurality of second conductive terminals do not overlap in the second direction;
• the first elastic mating portions and the second elastic mating portions protrude beyond the first surface of the insulating body to abut against the plurality of metal conductive pads of the circuit board;
• wherein the plurality of first conductive terminals comprise a plurality of first signal terminals, a plurality of second signal terminals and a plurality of first ground terminals;
• wherein adjacent first signal terminal and the second signal terminal form a first differential pair;
• and each of two sides of the first differential pair is provided with one first ground terminal;
• the plurality of second conductive terminals comprises a plurality of third signal terminals, a plurality of fourth signal terminals and a plurality of second ground terminals;
• wherein adjacent third signal terminal and the fourth signal terminal form a second differential pair;
• and each of two sides of the second differential pair is provided with one second ground terminal;
• the wire-to-board connector further comprises an outer metal shell mounted on the insulating body;
• the first terminal module comprises a first metal sheet;
• the plurality of first ground terminals are integrally formed with the first metal sheet, the first metal sheet is provided with a first grounding portion, the insulating body defines a first notch, and the first grounding portion is exposed to the insulating body through the first notch;
• the second terminal module comprises a second metal sheet;
• wherein the plurality of second ground terminals are integrally formed with the second metal sheet, the second metal sheet is provided with a second grounding portion, the insulating body defines a second notch, and the second grounding portion is exposed to the insulating body through the second notch;
• wherein both the first grounding portion and the second grounding portion are in contact with the outer metal shell;
• wherein the first cable comprises a first shielding layer which is connected to the first metal sheet;
• and
• the second cable comprises a second shielding layer which is connected to the second metal sheet;
• wherein the outer metal shell comprises a first wall portion, a second wall portion opposite to the first wall portion, a first side wall connecting one side of the first wall portion and one side of the second wall portion, a second side wall connecting another side of the first wall portion and another side of the second wall portion, and a receiving space enclosed by the first wall portion, the second wall portion, the first side wall and the second side wall;
• the insulating body is at least partially received in the receiving space;
• the first shielding layer is fixed to the first metal sheet by soldering or welding;
• the second shielding layer is fixed to the second metal sheet by soldering or welding;
• the first wall portion is provided with a first repair opening exposing the first shielding layer for supplementary soldering or welding, and a second repair opening exposing the second shielding layer for supplementary soldering or welding.