Patent ID: 7927108
Filing Date: 2011-04-19
Classification: H01R,Y10S

Abstract:
1. A power socket comprising: an insulative housing defining an annular first groove and a first cylinder disposed within the first groove, an annular second groove located at one side of the first groove along a transverse direction thereof and a second cylinder disposed within the second groove, the first groove defining a first inner surface and a first outer surface, the first cylinder defining a first passageway extending through a centre portion thereof along a front to back direction; a first contact having a first contact portion extending into the first passageway; a plurality of second contacts, each second contact having a second contact portion extending into the first groove; and means extending into the first groove for preventing a familiar round power plug from being inserted into the first groove; wherein the insulative housing further defines a transverse through hole communicating with the first and second grooves and an arc protrusion extending into the through hole along a top to down direction for preventing a corresponding plug from being inserted reversely.