Vibration exciter based on piezoelectric stack
A technology of piezoelectric stack and exciter, which is applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc. Problems such as less than 10KHz, acquisition signal distortion and noise, etc., achieve the effect of saving design space, less quantity, and small vibration displacement
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[0025] like figure 1 , figure 2 , image 3 As shown, the exciter based on the piezoelectric stack of this embodiment includes a piezoelectric stack driver 1, a vibration mechanism 2 and a packaging structure 3, and the piezoelectric stack driver 1 is fixedly arranged in the packaging structure 3, and the outside world The input signal is input to the piezoelectric stack driver 1 through the connecting wire passing through the packaging structure 3; the vibration mechanism 2 includes a butterfly spring 21 and a vibrating rod 22; the packaging structure 3 includes a base 31, a sleeve 32, The top cover 33, the top cover 33 and the sleeve 32 are connected by pre-tightening bolts 34, the base 31 and the sleeve 32 are connected by bolts 34'; one end of the piezoelectric stack driver 1 is fixed to the package On the base 31 of the structure 3, the other end is fastened to the end of the vibrating rod 22 facing the base 31; between.
[0026] like figure 2 As shown, one end of ...
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