An earphone sounding cavity capable of improving timbre and a shock-absorbing diaphragm used in the sounding cavity

Abstract

The invention discloses an earphone sounding cavity capable of improving tone quality and a damping diaphragm used in the sounding cavity. The earphone sounding cavity is composed of an earphone casing and a speaker support, wherein an accommodation space is formed in the earphone casing, and the speaker support is fixed at the port portion of the earphone casing; and an electroacoustic damping diaphragm is arranged to be attached to the accommodation space, the damping diaphragm forms an electroacoustic inner container cavity corresponding to the shape of the accommodation space, and a damping rubber ring is arranged between the bottom surface of the electroacoustic inner container cavity and the bottom surface of the accommodation space. The damping diaphragm is formed by a damping layer and a thin film layer in a compound manner, and the raw material of the damping layer is prepared by a mixture of mica powder, silicone rubber and an epoxy resin. According to the invention, the electroacoustic inner container cavity formed through the electroacoustic damping diaphragm is formed in the accommodation space of the earphone casing, the electroacoustic inner container cavity forms a sound cavity of an earphone, and due to the existence of the damping diaphragm, sound waves penetrating the sound cavity are absorbed and reflection of high-frequency waves and diffraction of low-frequency waves are reduced, such that noise is effectively reduced, and the sounding tone quality of the earphone is improved.

Description

Technical field: [0001] The invention relates to the technical field of earphone products, in particular to an earphone sounding cavity capable of improving timbre and a shock-absorbing diaphragm used in the sounding cavity. Background technique: [0002] There are many factors that affect the sound effect of earphones. For example, in the parameter indicators related to earphones, the "soft indicators" of sound quality and sound field positioning, which are mainly evaluated by subjective listening, cannot be expressed. Headphones from different manufacturers with similar frequency response curves will have a big difference in sound quality and sound field reproduction. This is the common understanding of headphone lovers. [0003] The difference in sound quality of earphones is relatively easy to understand. People will think that this is related to the material, size, structure of the diaphragm and the design of the earphone cavity. Just like the tweeter unit in the speak...

AI Technical Summary

Problems solved by technology

To put it simply, when the sound waves generated by the speaker are transmitted to the sound cavity of the earphone, when they reach the inner wall of the sound cavity, the low-frequency sound waves will be diffracted, and the high-frequency sound waves will be reflected. When different sound waves are superimposed, a Noise, which distorts the sound effect of the earphones

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