Magnetic balance linear vibration motor and vibration method therefor

Abstract

The invention discloses a magnetic balance linear vibration motor and a vibration method therefor. The motor comprises a stator, a rotor and a housing assembly, wherein the rotor carries out a reciprocal rectilinear motion along the stator when the stator is electrified; a positioning plate or a positioning magnet is arranged on the rotor; the positioning magnet is arranged on the housing assembly when the rotor is provided with the positioning plate; the positioning plate is arranged on the housing assembly when the rotor is provided with the positioning magnet; and the rotor keeps a horizontal motion under the actions of the positioning plate and the positioning magnet, and carries out the reciprocal rectilinear motion within a preset amplitude. The method comprises the steps as follows: when the stator is electrified, the rotor carries out the reciprocal rectilinear motion along the stator; the rotor is kept horizontal when carrying out the reciprocal rectilinear motion under the actions of the positioning plate and the positioning magnet, and carries out the reciprocal rectilinear motion within the preset amplitude; and when the stator is powered off, the rotor stops at the preset position under the actions of the positioning plate and the positioning magnet. According to the magnetic balance linear vibration motor, the assembly precision and the yield of the linear vibration motor are improved; noise is lowered; and the service lifetime is prolonged.

Description

technical field [0001] The invention relates to a vibration motor, in particular to a magnetic balance linear vibration motor and a vibration method thereof. Background technique [0002] With the rapid development of portable devices such as smart phones, the requirements for the electrical devices installed in them are getting higher and higher. [0003] In order to achieve the purpose of saving space and improving quality, electronic components are gradually developing in the direction of ultra-small and ultra-thin. As the main implementer of effects such as caller ID and touch feedback, vibrators also put forward higher requirements. Linear vibrating motors have replaced other vibrators because of their strong advantages in the height direction. [0004] At present, the linear vibration motor used more frequently on smartphones is a spring linear vibration motor, which uses a mechanical metal spring to control the vibration amplitude and vibration level. It is difficult...

AI Technical Summary

Problems solved by technology

[0004] At present, the linear vibration motor used more frequently on smartphones is a spring linear vibration motor, which uses a mechanical metal spring to control the vibration amplitude and vibration level. It is difficult to process and assemble, it is difficult to control the assembly accuracy, and the defect rate is very high; and use Short life, long-term use will cause metal fatigue, metal springs will produce noise and noise, affecting the use of mobile phones

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