Abstract: A socket structure includes: an insulating shell; a connecting base mounted on the bottom of the insulating shell, the connecting base comprising a pillar and a lower groove, the pillar extending upwardly from the top of the connection base, and a hole disposed in the pillar, the lower groove arranged on the top of the connecting base; a conducting strip arranged in the hole; an inner conducting ring disposed around the surface of the pillar; and an outer conducting ring inserted in the lower groove. The outer conducting ring does not shake in the insulating shell, ensuring a stable connection between the plug connecting terminals and the outer electric ring.

Abstract: A socket structure includes: an insulating shell; a connecting base mounted on the bottom of the insulating shell, said connecting base comprising a pillar and a lower groove, the pillar extending upwardly from the top of the connection base, and a hole disposed in the pillar, the lower groove arranged on the top of the connecting base; a conducting strip arranged in said hole; an inner conducting ring disposed around the surface of said pillar; and an outer conducting ring inserted in said lower groove. The outer conducting ring of the present invention will not shake in the insulating shell, thus the plug connecting terminals of the electrical connector can contact with the outer electric ring stably.