Mobile terminal

Abstract

The invention discloses a mobile terminal. The mobile terminal comprises a shell, a PCB, an MIC device and a master controller, wherein the shell is provided with an air hole; the PCB is arranged in the shell; the MIC device is arranged on the PCB; the MIC device is provided with an MIC channel, and the MIC channel is communicated with the air hole; the master controller is electrically connectedwith the MIC device; when the air hole is pressed and blocked, the MIC device generates a piezoelectric effect and outputs an electric signal corresponding to the size of a pressing force; and the master controller is used to convert the electric signal to a key signal and control a functional module that corresponds to the mobile terminal to work. According to the mobile terminal disclosed by theinvention, when the air hole is pressed and blocked, the MIC device generates the piezoelectric effect and outputs the electric signal corresponding to the size of the pressing force to the master controller, the master controller converts the electric signal to the key signal and controls the functional module corresponding to the mobile terminal to work, and thus a key operation can be achieved; and the MIC device is longer in service life, does not need to frequently replace keys, and is high in sensitivity.

Description

technical field [0001] The present invention relates to the technical field of electronic circuits, in particular to a mobile terminal. Background technique [0002] With the development of electronic products such as portable mobile terminals and Internet access ports, users have higher and higher requirements for ultra-thin and ultra-light, and pay more and more attention to user experience. How to reduce the size of electronic products and reduce the weight of electronic products Quality has also become the research direction of R&D personnel. [0003] At present, the keys of electronic products mainly include mechanical keys and pressure keys. Mechanical keys occupy a large volume of electronic products, are difficult to assemble, are prone to defects, often get stuck during use, and have a short lifespan, which leads to return to the factory after sale. High rate. The pressure button mainly relies on the pressure film to sense the pressure of the frame of the electron...

AI Technical Summary

Problems solved by technology

[0003] At present, the keys of electronic products mainly include mechanical keys and pressure keys. Mechanical keys occupy a large volume of electronic products, are difficult to assemble, are prone to defects, often get stuck during use, and have a short lifespan, which leads to return to the factory after sale. high rate

The pressure button mainly relies on the pressure film to sense the pressure of the frame of the electronic product, but the thickness of the metal frame is high and the deformation is small, which is prone to misoperation

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