Stable vibration device

Abstract

The invention relates to a stable vibration device. The device comprises a lower shell, an upper shell, a flexible printed circuit board, a coil, a mass block, an elastic sheet and an elastic supportsheet, wherein the lower shell comprises a plane, a coil positioning boss of which the central part of the plane protrudes upwards, and elastic sheet fixing parts formed on the two sides of the plane;the flexible printed circuit board is arranged on the plane of the lower shell; the coil is arranged at the upper part of the flexible printed circuit board; the mass block is positioned at the upperpart of the coil and is internally provided with a magnet; two sides of the mass block are respectively provided with an elastic sheet to form an oscillator, and the other end of each elastic sheet is connected with the elastic sheet fixing part of the lower housing through an elastic support sheet; and the upper shell and the lower shell are matched to form a closed cavity, so the vibrator is suspended in the closed cavity. The device is novel, installation is convenient, through the design of the elastic piece fixing part of the lower shell and the connecting parts on the two sides of the elastic piece, the technological manufacturing process is simplified, and the product yield is increased; moreover, vibration is more stable.

Description

technical field [0001] The invention belongs to the technical field of electromagnetism and vibration mechanics, and relates to a feedback function device of a complete device such as an earphone, a mobile phone and a game handle thereof, in particular to a stable vibration device. Background technique [0002] The linear motors currently on the market, the X-direction motors are widely used in the current complete machine products due to their good vibration body feeling and relatively high space utilization rate of the whole machine. However, during the vibration process of the X-direction linear motor, due to the difficulty of assembly, low assembly accuracy, and poor centering effect, polarization is likely to occur during the vibration process, resulting in the risk of defective products; in addition, the welding of the shrapnel and the shell, and the welding of the shrapnel and the mass block In the process, the positioning of the shrapnel is often difficult, resulting...

AI Technical Summary

Problems solved by technology

However, during the vibration process of the X-direction linear motor, due to the difficulty of assembly, low assembly accuracy, and poor centering effect, polarization is likely to occur during the vibration process, resulting in the risk of defective products; in addition, the welding of the shrapnel and the shell, and the welding of the shrapnel and the mass block In the process, the positioning of the shrapnel is often difficult, resulting in gaps in the welding of the shrapnel, the shell and the mass block, resulting in noise and the risk of the reliability of the shrapnel falling off during the vibration process of the product

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