Piezoelectric vibration module
First Claim
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1. A piezoelectric vibration module comprising:
- a vibration plate adapted to have a first end fixed and a second end not fixed and driven in a vertical direction based on the fixed first end;
a first piezoelectric element attached to a top or bottom of the vibration plate and adapted to vibrate when power is applied; and
a weight formed in the second end of the top or bottom of the vibration plate and adapted to control a vibration frequency of the piezoelectric vibration module,wherein the first piezoelectric element is attached to the top or bottom of the vibration plate with a predetermined interval from a fixed point or a fixing member at the first end of the vibration plate, andwherein the interval is within a range of 3% to 6% of a length of the piezoelectric vibration module.
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Abstract
A piezoelectric vibration module includes a vibration plate adapted to have one end fixed and the other end not fixed and driven in a vertical direction based on the fixed first end, a first piezoelectric element attached to the top or bottom of the vibration plate and adapted to generate a vibration power when power is applied, and a weight formed in the other end of the top or bottom of the vibration plate and adapted to control the vibration frequency of the piezoelectric vibration module. The first piezoelectric element is attached to the top or bottom of the vibration plate with a predetermined interval from a fixed point at the one end of the vibration plate.
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Citations
7 Claims
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1. A piezoelectric vibration module comprising:
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a vibration plate adapted to have a first end fixed and a second end not fixed and driven in a vertical direction based on the fixed first end; a first piezoelectric element attached to a top or bottom of the vibration plate and adapted to vibrate when power is applied; and a weight formed in the second end of the top or bottom of the vibration plate and adapted to control a vibration frequency of the piezoelectric vibration module, wherein the first piezoelectric element is attached to the top or bottom of the vibration plate with a predetermined interval from a fixed point or a fixing member at the first end of the vibration plate, and wherein the interval is within a range of 3% to 6% of a length of the piezoelectric vibration module. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification