Patent ID: 8801472

Claim:
An audio plug structure improvement, comprising: a hollow tube made of conductive materials and having a first conductive portion at a front section thereof, a first insulating portion at a rear section thereof, a front end forming a first opening and a rear end forming a second opening and an entire outer diameter of the hollow tube remaining standard specification of a scheduled audio plug; a head made of insulation materials and having a front-end portion being a cone body coinciding with the specification audio plug and a cylindrical junction at a rear-end portion thereof for inserting into the first opening, the front-end portion projecting at a front of the hollow tube and having an axial gap at middle thereof for inserting a conductive plate body, at least a side surface of the head forming a second conductive portion and the rest of surfaces of the head forming a second insulating portion and the second conductive portion insulated against the first conductive portion of the hollow tube by the cylindrical junction; and an electronic element having a first electrode and a second electrode respectively coupled with the second conductive portion and the first conductive portion; whereby when the audio plug is inserted into an audio jack of a predetermined electronic product, the first conductive portion and the second conductive portion are respectively electronically connected to a second terminal and a first terminal arranged at a predetermined position in the audio jack for obtaining power and supplying the power or a signal required by the electronic element; simultaneously, the first insulating portion is connected to terminals other than the second terminal and the first terminal in the audio jack for avoiding a sound outputting from the audio jack; when the audio plug is rotated at an angle, the first conductive portion and the second conductive portion are departed from the second terminal and the first terminal for cutting off the electrical connection between the audio plug and audio jack.