Intermediate-frequency ultrasonic atomizer

An ultrasonic atomizer and intermediate frequency technology, applied in the field of ultrasonic atomization technology, can solve the problems of short life, increase the working frequency, and small atomization amount, and achieve the effects of long life, increase atomization amount, and increase reliability.

Inactive Publication Date: 2014-05-07
JIANGSU UNIV
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  • Abstract
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Problems solved by technology

[0008] In the piezoelectric ultrasonic atomizer in the prior art, the piezoelectric ceramic part is a thin piezoelectric ceramic disc or a thin piezoelectric ceramic ring in the radial vibration mode. When the operating frequency is relatively increased to obtain smaller droplets, due to the The thickness of the corresponding vibrator is very small, the amount of atomization is small, the reliability is low, and the service life is short

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Embodiment Construction

[0023] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 and figure 2 As shown, the piezoelectric ceramic 1 is a thin-walled metal ring, its radial thickness t is smaller than its axial thickness w and the radius r of the inner circle of the ring, and the inner and outer walls of the piezoelectric ceramic 1 are coated with a silver layer 10 . The upper end surface of the upper insulating ring 2 is pasted together with the lower end surface of the horizontal annular part of the metal end cap 3 , and the lower end surface is pasted together with the upper end surface of the piezoelectric ceramic 1 . The shape of the metal end cap 3 is a cyclochoid, and the central position of the metal end cap 3 has a laser through hole punched by a laser. The position corresponding to the laser through hole area on the lower end surface of the metal end ca...

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Abstract

The invention discloses an intermediate-frequency ultrasonic atomizer. The intermediate-frequency ultrasonic atomizer comprises piezoelectric ceramics, an upper end insulating ring, a metallic end cap, a central metal ring, a negative wire, a positive wire, a lower end metal ring, a liquid inlet, a lower end insulating ring and silver, wherein the metallic end cap is in the shape of a cycloid curve, the polarization direction of the piezoelectric ceramics is radial thickness direction, the atomization amount is high, the reliability is high, and the service life is long; the working frequency of the intermediate-frequency ultrasonic atomizer can reach to 300-500 KHz. The intermediate-frequency ultrasonic atomizer can obtain smaller fog drops without destroying the chemical structure of nutrient solution, and overcomes the defects that the chemical structure of the nutrient solution is destroyed by a high-frequency ultrasonic atomizer and larger fog drops are produced by a low-frequency ultrasonic atomizer. The intermediate-frequency ultrasonic atomizer can be applied to the field of atomization cultivation.

Description

technical field [0001] The invention belongs to the field of atomization cultivation, and in particular relates to an ultrasonic atomization technology. Background technique [0002] The piezoelectric ceramic part of the traditional piezoelectric ultrasonic nebulizer is a thin piezoelectric ceramic disc or a thin piezoelectric ceramic ring in the radial vibration mode. Let r be the radius of the thin piezoelectric ceramic disc, and w be the thickness of the thin piezoelectric ceramic disc, where w is much smaller than r. Suppose D1 is the inner diameter of the piezoelectric ceramic thin ring, D2 is the outer diameter of the piezoelectric ceramic thin ring, w is the thickness of the piezoelectric ceramic thin ring, t is the radial thickness of the piezoelectric ceramic thin ring, and its w is much smaller than D1, D2 and t. The piezoelectric ceramic thin disc and the piezoelectric ceramic thin ring are both polarized in the thickness direction of the vibrator. The relation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B17/06
CPCB05B17/0638B05B17/0653B05B17/0646
Inventor 高建民张竞宇
Owner JIANGSU UNIV
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