Micro sounder

Abstract

The invention discloses a micro sounder, and relates to the technical field of electro-acoustic products. The micro sounder comprises a second shell; the second shell is used for containing a vibration system and a magnetic circuit system; the micro sounder further comprises a first shell; the first shell comprises a top wall and a side wall; the edge part of the vibration system is glued and fixed between the top wall of the first shell and the upper head face of the second shell; the side wall of the first shell encircles outside the second shell; furthermore, a first glue containing cavity is arranged between the side wall of the first shell and the outside surface of the second shell; and waterproof glue is filled in the first glue containing cavity. The micro sounder disclosed by the invention solves the technical problem that the waterproof performance of the micro sounder in the prior art is poor; and the micro sounder disclosed by the invention is good in waterproof performance, high in reliability and long in service life, and can satisfy waterproof requirements.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a miniature sound generator. Background technique [0002] Miniature sound generator is an important acoustic component of portable electronic equipment, which is used to complete the conversion between electrical signals and sound signals, and is an energy conversion device. Existing miniature sound generator comprises the first housing and the second housing that are combined together up and down, and the space enclosed by the first housing and the second housing accommodates vibration system and magnetic circuit system, and the edge of vibration system It is fixed between the first casing and the second casing, that is, the edge of the diaphragm of the vibration system is fixed between the first casing and the second casing. [0003] The current portable electronic equipment gradually adopts a waterproof solution, which requires that the miniature sounder as ...

AI Technical Summary

Problems solved by technology

Because, when a portable electronic device falls into water or touches water in other forms, the water will enter the space above the diaphragm of the micro-sounder from the sound hole of the micro-sounder through the sound hole on the housing of the electronic device, and then will From the edge of the diaphragm and the first casing into the inner cavity of the portable electronic device, from the above-mentioned path of water entering the portable electronic device, it can be seen that the sealing between the diaphragm and the first casing is a micro sound However, the structure of the existing miniature sounder is difficult to make the seal between the diaphragm and the first shell to meet the waterproof requirements, and the waterproof performance is poor, which cannot meet the waterproof requirements.

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