Cable connector assembly with cable wires made of heat-resisting material

A cable connector assembly comprising:

• a printed circuit board defining around a rear edge region thereon a plurality of front pads and a plurality of rear pads spaced from each other in a front-to-back direction, the front pads being arranged with one another in a transverse direction perpendicular to said front-to-back direction;
• a cable including a plurality of coaxial wires and a plurality of single wires, each of the coaxial wires including an inner conductor, an inner insulative layer, an outer conductor and an outer insulative layer concentrically enclosed by one another in sequence from an inner side to an outer side, the inner conductor being soldering upon the corresponding front pad and the outer conductor being soldering upon the corresponding rear pad;
• each of said single wires including a first conductor enclosed by a first insulative layer, the first conductor being soldered upon the corresponding front pad,
• the inner conductors of the coaxial wires being soldered upon the corresponding front pads commonly in a first region while the first conductors of the signal wires being soldered upon the corresponding front pads around a second region spaced from the first region in the transverse direction;
• a spacer intimately located behind a rear edge of the printed circuit board and defining a plurality of through holes through which said coaxial wires and said single wires extend in the front-to-back direction;
• wherein
• the single wire closest to the first region than the others in the transverse direction, has the corresponding first insulative layer which is heat-resisting while not good in adhesion with regard to the space, and further a second insulative layer enclosing said first insulative layer, said second insulative layer being of good adhesion with regard to the spacer.

A method of assembling a cable to a printed circuit board, comprising steps of:

• providing a printed circuit board with a plurality of front pads and a plurality of rear pads in a front-to-back direction around a rear edge region, wherein an amount of the front pads is more than that of the rear pads, said front pads being arranged with one another along a transverse direction perpendicular to said front-to-back direction;
• dividing said front pads into first and second regions in said transverse direction;
• providing an insulative space located behind the printed circuit board in the front-to-back direction and formed with a plurality of through holes in the front-to-back direction;
• providing a cable with a plurality of coaxial wires and a plurality of single wires;
• each of said coaxial wires including an inner conductor, an inner insulative layer, an outer conductor and an outer insulative layer concentrically enclosed by one another in sequence from an inner side to an outer side, the inner conductor being soldering upon the corresponding front pad and the outer conductor being soldering upon the corresponding rear pad, each of said single wires including a single conductor enclosed in an insulative layer;
• soldering the inner conductors of the coaxial wires to the corresponding front pads in the first region, respectively, and soldering the single conductors of the single wires to the corresponding front pads in the second region, respectively;
• and
• soldering the outer conductors of the coaxial wires to the corresponding rear pads, respectively;
• wherein
• the single wires and the coaxial wires extend through the corresponding through holes of the spacer, and the insulative layer of one of said single wires which is closest to the first region, is essentially heat-resisting while being further joined with material at least on an exterior surface to be adhesive with regard to the spacer.