Connecting structure for earphone

A connecting structure for an earphone contains: a male connector and a female connector. The male connector includes a plug terminal and an insulation holder, the plug terminal has a locking portion adjacent to a bottom of the plug terminal, and the plug terminal has at least one protrusion extending outwardly from a peripheral side of the locking portion. The plug terminal is mounted in the insulation holder, and between the insulation holder and the plug terminal is defined an inserting groove. The female connector includes an insertion seat and a body. The body has a fixing portion inserted into the inserting groove, and the fixing portion has at least one alignment orifice corresponding to the at least one protrusion. The insertion seat is fixed in the body to electrically connect with the plug terminal.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a connecting structure for an earphone which connects a male connector with a female connector in a locking manner.

2. Description of the Prior Art

A conventional earphone connector is connected with a connection holder on 3C equipment. A plug terminal of the earphone connector is inserted into an insertion seat of the connection holder, such that the plug terminal electrically conducts with a terminal of the insertion seat to transmit audio. Since the terminal of the insertion seat is flexible, since a contacting portion retains with the plug terminal, and when the plug terminal inserts into the insertion seat, it is fixed. When desiring to remove the plug terminal, it is manually pulled from the insertion seat with a gentle pull force.

However, it is easy to remove the plug terminal from the insertion seat while pulling a connecting wire unintentionally, thus stopping audio transmission.

Furthermore, another plug terminal suitable for a smart phone is mounted on an insertion seat of the smart phone to hang the smart phone. Thus, it is easy to drop the smart phone on the ground while pulling the plug terminal with force.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a connecting structure of an earphone which contains a male connector rotated to not align at least one protrusion with at least one alignment orifice, so that a locking portion contacts with a fixing portion to avoid a removal of the male connector and the female connector.

Another objective of the present invention is to provide a connecting structure of an earphone in which a plug terminal is electrically connected with an insertion seat by ways of the at least one protrusion of the male connector and the at least one alignment orifice of the female connector.

Accordingly, a connecting structure of an earphone provided by the present invention contains a male connector and a female connector.

The male connector includes a plug terminal and an insulation holder. The plug terminal has a locking portion adjacent to a bottom of the plug terminal, and the plug terminal has at least one protrusion extending outwardly from a peripheral side of the locking portion. The plug terminal is mounted in the insulation holder, and between the insulation holder and the plug terminal is defined an inserting groove.

The female connector includes an insertion seat and a body. The body has a fixing portion inserted into the inserting groove, and the fixing portion has at least one alignment orifice corresponding to the at least one protrusion. The insertion seat is fixed in the body to electrically connect with the plug terminal.

Preferably, the male connector further includes a first connection wire for electrically connecting with the plug terminal.

Preferably, the female connector further includes at least one second connection wire for electrically connecting with the insertion seat.

Preferably, the fixing portion has an abutting face defined in an accommodation slot in which the locking portion is located.

Preferably, the locking portion has a contacting plane formed therein to contact with the abutting face.

Preferably, a height of the accommodation slot is greater than a thickness of the locking portion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustration only, the preferred embodiments in accordance with the present invention.

With reference toFIGS. 1 and 2, a connecting structure for an earphone according to a preferred embodiment of the present invention comprises a male connector1and a female connector2which are coupled together. The male connector1includes a plug terminal10and an insulation holder12. The plug terminal10has a locking portion100adjacent to a bottom of the plug terminal10and has at least one protrusion102extending outwardly from a peripheral side of the locking portion100. The plug terminal10is mounted in the insulation holder12, and between the insulation holder12and the plug terminal10is defined an inserting groove14. The female connector2includes an insertion seat20and a body22. The body22has a fixing portion220inserted into the inserting groove14, and the fixing portion220has at least one alignment orifice222corresponding to the at least one protrusion102. The insertion seat20is fixed in the body22to electrically connect with the plug terminal10. The male connector1further includes a first connection wire16for electrically connecting with the plug terminal10, and the female connector2further includes at least one second connection wire24for electrically connecting with the insertion seat20.

Referring further toFIGS. 3 and 4, in use, the at least one protrusion102of the male connector1is aligned with the at least one alignment orifice222of the female connector2, and the fixing portion220is inserted into the inserting groove14, such that the locking portion100is located at an accommodation slot2200of the fixing portion220. Due to the fixing portion220having an abutting face2202defined in the accommodation slot2200thereof, the locking portion100has a contacting plane1002formed therein, the contacting plane1002contacts with the abutting face2202, and a height of the accommodation slot2200is greater than a thickness of the locking portion100. Hence, the male connector1is electrically in connection with the female connector2, and the contacting plane1002latches the abutting face2202tightly to avoid a removal of the male connector1and the female connector2.

While various embodiments in accordance with the present invention have been shown and described, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.