Linear vibrator device

Abstract

The invention relates to a vibrator, in particular to an electric-acoustic transformation acoustic generator with the function of vibration. A magnetic fluid is arranged at the bottom of a bowl-shaped magnetizer. A protruding elastic damping balance is arranged in the corresponding position of the magnetic fluid on a bottom cover. The elastic damping balance and a vibration unit with magnetic fluid are propped against each other in the vibration state, so as to overcome the disadvantage of small damp in a miniature electric-acoustic generator in the related technology, enable the resonance amplitude to be inhibited when the miniature electric-acoustic generator works, increase the voltage to be borne by the miniature electric-acoustic generator and widen the effective frequency band of the miniature electric-acoustic generator. Therefore, the resonance amplitude is inhibited, so that the collision of the inner parts of the acoustic generator can be avoided, and the power to be borne by the invention is increased. Besides, the counterforce is strengthened when the resonance happens, so that the effective frequency band of the electric-acoustic transformation acoustic generator gets wider.

Description

【Technical field】 [0001] The invention relates to a miniature vibrator, in particular to an electroacoustic conversion sound generator with vibration function. 【Background technique】 [0002] In a traditional portable electronic device, such as a mobile phone, the three functions of incoming call sound prompt, incoming call vibration prompt and telephone voice output need to be completed by three independent devices. Among them, a simple music sounder or a loudspeaker with a wider frequency response range is used to perform the sound prompt function of an incoming call; a micro DC vibration motor is used to perform the vibration prompt function; the voice output function of the telephone is completed by a receiver. However, the development trend of mobile phones is to be short, light and thin, and the more components there are, the more unfavorable it is to reduce the size of the mobile phone. Therefore, the various components inside the mobile phone are integrated to confo...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the resonance amplitude of the electro-acoustic conversion sounder with vibration function cannot be effectively suppressed, and its internal vibration system is easy to collide with each other. In particular, when the voltage increases, its noise is very large, and its frequency response curve is sharp , leading to the problem of narrow frequency range of the sounder, providing a vibrator structure of a miniature electroacoustic device with relatively suppressed resonance amplitude

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