Sound-generating device, its voice coil and its winding method

Abstract

The invention provides a sounding device, a voice coil thereof and a winding method of the voice coil. The voice coil has a through hole. The voice coil includes a first voice coil and a second voice coil fixedly connected to the first voice coil. The second voice coil includes a hole connected to the first voice coil and surrounded by the first voice coil to form a through hole. The inner layer and the outer layer formed on the side of the inner layer away from the through hole, the outer layer has a convex portion protruding from the inner layer along the axial direction of the through hole, and the surface of the first voice coil on the side away from the through hole is covered with a convex portion , and the convex part is connected to the first voice coil, wherein the number of single-layer turns of the outer layer is equal to the sum of the number of single-layer turns of the inner layer and the first voice coil. Compared with related technologies, the sound-generating device, its voice coil and the winding method of the voice coil of the present invention reduce the influence of the first voice coil on the second voice coil, so as to achieve the goal of regular voice coil and improve the performance of the voice coil.

Description

[Technical field] [0001] The present invention relates to the field of acoustic electrons, and more particularly to a sounding method of a sounding device and a voice coil and a voice coil. 【Background technique】 [0002] With the arrival of the mobile Internet era, the number of smart mobile devices continues to rise. In many mobile devices, the phone is undoubtedly the most common, the most portable mobile terminal device. The sound device for playing sound is applied to a large number of smart mobile devices such as mobile phones. Among them, a soundpad having a double-layer voice coil structure is widely applied to a mobile device due to its high quality acoustic properties. [0003] The detector of the related art includes a bowar frame and a magnetic circuit system that is fixed to the basin frame, respectively, a magnetic wire system having a magnetic gap, and the vibration system includes a diaphragm fixed to the bowl and fixed to the diaphragm and inserted into a magneti...

AI Technical Summary

Problems solved by technology

However, when the voice coil of the related art is wound, the second voice coil is usually wound directly above the first voice coil after the first voice coil is wound. The winding of the second voice coil has a negative impact, resulting in irregular structure of the second voice coil, which seriously affects the performance

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