Headphone jack connector

Abstract

The invention discloses a headphone jack connector which comprises plastic parts and at least an elastic contact piece, wherein the plastic parts comprise first and second plastic parts, the first and second plastic parts are connected in a fastened mode, the opposite side walls of one ends of the first and second plastic parts are semi-cylindrical concave cambered surfaces which are symmetric in structure, the contact piece is integrally formed in the first and second plastic parts, the tail end of the contact piece extends to the outsides of the first and second plastic parts, an elastic sheet of the contact piece extends to the outsides of the concave cambered surfaces of the first and second plastic parts, the headphone jack connector is also provided with a balancing piece, and the balancing piece is fixedly sleeved on the circumferential outside walls of the first and second plastic parts so as to fix the first and second plastic parts together. According to the invention, the connection strength and stability of the contact piece and the first and second plastic parts are ensured, the planeness of the tail end of the contact piece is ensured, the application stability of a headphone and a headphone jack is ensured, the subsequent assembling process is reduced, the production efficiency is improved, the operating time is saved, and the labor intensity of workers is reduced.

Description

technical field [0001] The invention relates to a connector, in particular to an earphone socket connector. Background technique [0002] The headphone socket connector is a connector for connecting electronic appliances and headphones, which can be divided into monophonic and stereophonic. Its general structure is a structure of six contact pieces. When the earphone plug is inserted, four of the contact pieces are in contact with the standard four-level or three-level plug. soundtrack. The other two contact pieces are used as the static contact pieces of the switch, and are combined with the two contact pieces of the left and right sound channels to form a switch structure, which is disconnected or closed when the plug is inserted. In some occasions, corresponding changes can also be made as required, such as adding or removing one or more contacts, retaining or removing a switch, and sharing the contacts of the switch with the microphone contacts. [0003] This general-...

AI Technical Summary

Problems solved by technology

[0003] This general-purpose headphone socket connector has a relatively complicated structure. The shell is injection-molded with plastic, and the contact piece is inserted into it. In order to ensure reliable contact with the headphone plug, its dimensional accuracy is relatively high, and the manufacturing of the injection molded parts and the contact piece is difficult. bigger

The four contact pieces connected to the fourth stage of the earphone are elastic structures, installed in the plastic shell, there must be room for movement, and the installation and fixation with the plastic shell must be guaranteed, which brings great difficulties to manufacturing

Due to the small size and many contact pieces, the assembly cost of automatic machines is high, and manual assembly is generally used, which is difficult to assemble and low in efficiency.

For the headphone jack connector whose pins are soldered on the back of the contact piece, it is another difficulty in manufacturing to ensure the coplanarity of the pins of the six contact pieces. Since the six contact pieces are all plug-in, it is difficult to achieve The surface is in a plane, which often leads to bad phenomena such as solder joints

[0004] Due to the limited volume, the elastic contact piece can only be placed on one side, so that the radial force of the plug is unbalanced, and the plug will be biased to one side, which requires increasing the deformation of the contact piece to ensure reliable contact and increase the material. Selection and structural design difficulty

When the size of the plug is lower than the lower limit or slightly smaller, the contact piece may not be in contact with the plug. After repeated plugging and unplugging, the contact piece will loosen, and poor contact is more likely to occur

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