Miniature moving-iron bone conduction driving device

Abstract

The invention relates to the technical field of the sounder, particularly to a miniature moving-iron bone conduction driving device of a sounder. The miniature moving-iron bone conduction driving device comprises a supporting with installing through holes; and a magnetic cover and an annular voice coil arranged in the magnetic cover are arranged in one installing through hole of the support. A vibration spring plate is arranged at the support and is located in the other installing through hole; a magnetic steel is arranged at the vibration spring plate; a pole plate is fixedly arranged at the magnetic steel; and the magnetic steel and the pole plate are located in the space formed by enclosure of the voice coil. The traditional moving-coil type loudspeaker structure is changed into the moving-iron type structure; the driving force of the vibration system and the vibratory sensation during sounding can be enhanced; because of the driving plate, connection with a case can be realized conveniently, so that the sound can be conducted to the case and the sounding is carried out by the case; because the area of the case is far larger than the vibration area of the common loudspeaker, the effective vibration area is increased, thereby substantially improving the driven volume and the vibration sensation of the effective sound that is given out.

Description

technical field [0001] The invention relates to the technical field of sound generators, in particular to a miniature moving iron bone conduction drive device for sound generators. Background technique [0002] At present, the problem that has been plaguing the sound generator industry is that the speakers of mobile phones, tablet computers, and notebooks are limited by their structure and limited space. The size is getting smaller and smaller, and the space left for the speaker is getting smaller and smaller. The volume has not been able to meet the requirements of mobile phones, tablet computers and other communication products, which also reduces the use effect of the product. Contents of the invention [0003] Aiming at the above technical problems, the present invention provides a miniature moving iron bone conduction drive device with simple structure and reasonable design, which can increase the sound emitting area of ​​the speaker and increase the sound emitting vo...

AI Technical Summary

Problems solved by technology

[0002] At present, the problem that has been plaguing the sound generator industry is that the speakers of mobile phones, tablet computers, and notebooks are limited by their structure and limited space. The size is getting smaller and smaller, and the space left for the speaker is getting smaller and smaller. The volume has not been able to meet the requirements of mobile phones, tablet computers and other communication products, which also reduces the use effect of the product.

Images