Customized earphone based on 3D (three-dimensional) printing technology and manufacturing method thereof

Abstract

The invention discloses a customized earphone based on a 3D (three-dimensional) printing technology and a manufacturing method of the customized earphone. The earphone comprises an earphone shell, a hard sound induction tube, a unit clamping groove, a sounding unit, a sound outlet connection device, a frequency dividing circuit, a seal cover and a wire socket; the earphone shell, the unit clamping groove, the hard sound induction tube and the seal cover are formed by a 3D printer in a printing manner; the frequency dividing circuit is connected with the sounding unit and the wire socket; the sounding unit is arranged in the unit clamping groove; the sounding unit is communicated with the hard sound induction tube through the sound outlet connection device; the seal cover is used for sealing the earphone shell to form the customized earphone. The thickness, internal structure, mechanical characteristics and acoustics characteristics of the customized earphone shell can be precisely controlled, the sound induction tube material can be optimized, the limitation on a soft material can be broken through, the labor and time cost can be greatly reduced, and the yield of the customized earphone can be greatly increased.

Description

technical field [0001] The invention relates to the field of electro-acoustic technology, and more specifically relates to a 3D printing-based customized earphone and a manufacturing method thereof. Background technique [0002] Traditional custom-made earphones are all handmade, and the process is cumbersome, requiring two manual molding processes, which results in high time costs and serious waste of materials. The headphone shell is made by a selective curing process. However, the shape of the shell varies with the human ear, resulting in the thickness and internal structure of the shell cannot be accurately controlled, and the mechanical and acoustic properties are difficult to optimize. Unit placement depends on human experience and cannot be standardized. In addition, the sound guide part needs secondary molding processing. The traditional custom earphone manufacturing process can only use soft materials for the sound guide tube, and the acoustic characteristics are li...

AI Technical Summary

Problems solved by technology

[0002] Traditional custom-made earphones are all handmade, and the process is cumbersome, requiring two manual injection molding processes, which results in high time costs and serious waste of materials

The headphone shell is made by selective curing process. However, the shape of the shell varies from person to ear, which leads to the inability to accurately control the thickness and internal structure of the shell, and it is difficult to optimize the mechanical and acoustic properties. The unit placement depends on human experience and cannot be standardized.

In addition, the sound guide part needs secondary molding processing. The traditional custom earphone manufacturing process can only use soft materials for the sound guide tube, and the acoustic characteristics are limited.

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