Patent ID: 8808038

Claim:
A spring contact, comprising: a lower contact pin having a plate-shaped structure, the lower contact pin including a body having a first thickness, a contact portion having a predetermined shape, and two spring holding protrusions provided in left and right sides of the lower contact pin; an upper contact pin coupled to the lower contact pin in such a way that the lower contact in and the upper contact in cross each other at right angles, the upper contact pin having a same construction as that of the lower contact pin; and a spring fitted over an assembly of the lower contact pin and the upper contact pin at a position between the upper and lower contact pins, wherein the body of each of the lower contact pin and the upper contact pin has two symmetric elastic portions, an end of each of which has a second thickness that is less than the first thickness of the body, with an oblique surface, a locking protrusion and a locking protrusion contact surface being provided in the end of each of the two symmetric elastic portions, in which a moving slit is defined between the two elastic portions so as to form a moving space when the upper contact pin and the lower contact pin are assembled with each other, with a stop surface being formed on an end of the moving slit and having left and right oblique surfaces so that, when the upper contact pin is in contact with to the lower contact pin and compressed to a maximum, the stop surfaces of the two contact pins come into contact with each other and stop the compression, and moving grooves are formed in each of the lower and upper contact pins so that the locking protrusions of the lower and upper contact pins can be moved and stopped and the moving grooves of the lower and upper contact pins can be brought into electric contact with the locking protrusion contact surfaces of the lower and upper contact pins, in which the moving grooves are formed on upper and lower surfaces of each of the lower and upper contact pins, respectively, and first ends of the moving grooves of each of the lower and upper contact pins have a stop hole that forms a stop bridge for stopping the locking protrusions of an opposite contact pin, and second ends extend to an end of the contact portion after passing spring holding surfaces of the two spring holding protrusions that function to limit the length of the spring and to prevent the spring from being displaced.