Sound production device and electronic equipment

Abstract

The invention discloses a sound production device and electronic equipment, the sound production device comprises a shell, a vibration system and a magnetic circuit system, the shell is provided with a mounting cavity, the vibration system comprises a vibrating diaphragm and a voice coil which are arranged in the mounting cavity, the vibrating diaphragm divides the mounting cavity into a front sound cavity and a rear sound cavity, and the voice coil is arranged in the mounting cavity. The voice coil is arranged on one side of the vibrating diaphragm to drive the vibrating diaphragm to vibrate, and the magnetic circuit system is arranged in the mounting cavity; wherein the shell is provided with a plastic part, the plastic part is provided with an air leakage hole communicated with the rear sound cavity, a part of the plastic part and / or a part of the magnetic circuit system form a stop part, and the stop part is right opposite to a hole opening area of a part of the air leakage hole so as to adjust the air leakage area of the air leakage hole. The invention aims to provide the sound production device capable of effectively improving the tone quality and improving the high-pitch effect, so that the sound production device can keep stable frequency response performance in a high-temperature and high-humidity environment.

Description

technical field [0001] The present invention relates to the technical field of electro-acoustic conversion, in particular to a sound generating device and an electronic device using the sound generating device. Background technique [0002] Loudspeakers, also known as horns, as an electro-acoustic transducer, are widely used in electronic devices such as speakers, headphones, and mobile phones. Current loudspeakers can be divided into moving coil loudspeakers, moving iron loudspeakers and flat diaphragm loudspeakers in terms of working principle. In the related art, in order to pursue higher sound quality, electronic devices such as earphones often use multiple drive units, that is, a tweeter and a woofer are used together. However, the size of the tweeter is getting smaller and smaller, and the current product structure design is limited by the external size, and it is impossible to normally open a sound vent hole that meets the needs of the tweeter. As a result, the rear...

AI Technical Summary

Problems solved by technology

However, the size of the tweeter is getting smaller and smaller. The current product structure design is limited by the external size, and it is impossible to normally open the sound leak hole that meets the use requirements of the tweeter.

As a result, the rear cavity of the tweeter cannot be deflated, and in a high-temperature and high-humidity environment, it will lead to a decrease in frequency response performance, thereby affecting the sound quality of electronic equipment and affecting the user's use effect

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