Double-layer sound outlet structure of sound box and processing method thereof

Abstract

The invention discloses a double-layer sound outlet structure of a sound box, which is characterized in that a soft rubber layer and a hard rubber layer are attached to each other from outside to inside and are fixedly connected together through an injection molding process; the soft rubber layer and the hard rubber layer are respectively provided with sound outlets corresponding to each other, the sound outlets of the inner hard rubber layer are larger than the sound outlets corresponding to the outer soft rubber layer, and the sound outlets of the outer soft rubber layer are arranged in thecross section ranges of the sound outlets of the corresponding inner hard rubber layer. The invention further provides a processing method. A two-layer superposed structure is adopted, and the two layers are bonded together through injection molding, so that the fixed connection between the two layers is realized, and the connection is stable and reliable. The diameter of the sound outlet hole ofthe soft rubber layer is designed to be smaller than that of the sound outlet of the hard rubber layer, the sound outlet of the soft rubber layer and the sound outlet of the hard rubber layer can be aligned more accurately, it is guaranteed that the sound outlet hole of the soft rubber layer and the sound outlet hole of the hard rubber layer do not shield each other, the machining process is simplified, and the quality and the percent of pass are improved.

Description

technical field [0001] The invention relates to a sound outlet structure and a processing method thereof, in particular to a double-layer sound outlet structure of a sound box and a processing method thereof. Background technique [0002] In order to improve the contact and comfort of use, the existing bluetooth speaker adopts metal mesh as the sound hole, and then puts the soft rubber with the sound hole on the metal mesh to complete the assembly of the speaker. This processing method requires secondary dismantling and processing, and the assembly needs to be made in two sets. At the same time, if figure 1 As shown, since the number of sound outlet holes on the speaker is very large and dense, and the size of the sound outlet holes is different, especially the size of the sound outlet holes on the edge is the smallest, so the soft rubber sleeve must be kept on the metal mesh hole. Extremely high alignment accuracy, otherwise the sound holes will block each other and affect...

AI Technical Summary

Problems solved by technology

This processing method requires secondary dismantling and processing, and the assembly needs to be made in two sets. At the same time, if figure 1 As shown, since the number of sound outlet holes on the speaker is very large and dense, and the size of the sound outlet holes is different, especially the size of the sound outlet holes on the edge is the smallest, so the soft rubber sleeve must be kept on the metal mesh hole. Extremely high alignment accuracy, otherwise the sound holes will block each other and affect the volume and effect of sound emission, which will cause troublesome alignment, inconvenient assembly, and time-consuming and laborious problems

In addition, the soft rubber and the metal mesh are connected and fixed by glue, and the glue is easy to penetrate and block the sound hole; if there is no glue, the adhesion between the soft rubber and the metal mesh is poor

In the process of use, the soft rubber is subjected to the force of use, and the soft rubber is easy to loosen and deform, and then it will wander and block the metal mesh, which seriously affects the reliability and convenience of use.

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