A medium frequency ultrasonic nebulizer

An ultrasonic nebulizer and intermediate frequency technology, which is applied in the field of ultrasonic atomization technology, can solve the problems of increasing the working frequency, small atomization volume, and short life, and achieve the effects of increasing atomization volume, increasing reliability, and long life

Inactive Publication Date: 2016-03-09
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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  • A medium frequency ultrasonic nebulizer
  • A medium frequency ultrasonic nebulizer
  • A medium frequency ultrasonic nebulizer

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Embodiment Construction

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

[0024] Such as figure 1 with figure 2 As shown, the piezoelectric ceramic 1 is a thin-walled metal ring whose radial thickness t is smaller than its axial thickness w and the inner circle radius r of the ring. The inner and outer walls of the piezoelectric ceramic 1 are both 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 spiral line, and the center of the metal end cap 3 has a laser through hole made by laser. The position corresponding to the laser through hole area on the lower end surface of the metal end cap 3 is connected to the central metal r...

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Abstract

The invention discloses an intermediate frequency ultrasonic atomizer, which comprises: piezoelectric ceramics, an upper insulating ring, a metal end cap, a central metal ring, a negative lead wire, a positive lead wire, a lower metal ring, a liquid inlet, a lower insulating ring, and silver; The shape of the metal end cap is a cycloid, and the polarization direction of the piezoelectric ceramic is the radial thickness direction, with large atomization capacity, high reliability and long life; the working frequency of the intermediate frequency ultrasonic atomizer can reach 300KHz~ 500KHz, the medium frequency ultrasonic atomizer can get smaller droplets without destroying the chemical structure of the nutrient solution. Shortcomings. The invention can be applied to the field of atomization cultivation.

Description

Technical field [0001] The invention belongs to the field of atomization cultivation, and specifically relates to an ultrasonic atomization technology. Background technique [0002] In the traditional piezoelectric ultrasonic atomizer, the piezoelectric ceramic part is a piezoelectric ceramic thin disc or a piezoelectric ceramic thin ring in the radial vibration mode. Let r be the radius of the piezoelectric ceramic thin disc, w be the thickness of the piezoelectric ceramic thin disc, and its 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 w is much smaller than D1, D2 and t. Both the piezoelectric ceramic thin disc and the piezoelectric ceramic thin ring are polarized in the thickness direction of the vibrator. The relationship between...

Claims

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Application Information

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