Terminal module

A terminal module, comprising:

• an electrical contact including a body having a facing surface facing a butting portion provided on a mating terminal;
• and
• an obliquely wound coil spring coiled by winding a conductive wire material a plurality of times, all turns of the conductive wire material being inclined in the same direction with respect to a coil axis, the obliquely wound coil spring being oriented such that the coil axis is parallel to the body of the electrical contact, the obliquely wound coil spring being sandwiched between the mating terminal and the electrical contact by the conductive wire material being deformed to tilt in one direction toward the coil axis when the mating terminal and the electrical contact approach so that the facing surface contacts a first outer surface of the spring and the contact surface contacts a second outer surface of the spring that is opposite the first outer surface;
• wherein
• at least one of the facing surface on the body of the electrical contact on which the obliquely wound coil spring slides and a contact surface on the butting portion of the mating terminal on which the obliquely wound coil spring slides is formed into an uneven surface for increasing frictional resistance during sliding.