Low-frequency bending vibration type secondary ultrasonic atomizer

A technology of ultrasonic atomizer and bending vibration, applied in the direction of injection device, liquid injection device, etc., can solve the problems of high driving voltage, limited application prospect, heating of circuit and sprayer, etc., and achieve low production cost, light and simple overall structure, The effect of improving reliability

Inactive Publication Date: 2014-12-17
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, most of the low-frequency ultrasonic atomizing nozzles are low-frequency ultrasonic atomizers with horns, which have disadvantages such as high driving voltage,

Method used

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  • Low-frequency bending vibration type secondary ultrasonic atomizer
  • Low-frequency bending vibration type secondary ultrasonic atomizer
  • Low-frequency bending vibration type secondary ultrasonic atomizer

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0024] figure 1 It is a schematic diagram of the working principle of the low-frequency bending vibration ultrasonic nebulizer. Among them, the piezoelectric ceramic 4 is a new type of functional material. The piezoelectric ceramic 4 generates hundreds of thousands of first-order bending vibrations per second through the driving power supply, thereby driving the metal disc 5 to vibrate continuously. The central area of ​​the wafer 5 has extremely small pores 3 . Thereby, the liquid is constantly beaten, so that water is sprayed out from the micropore 3, which ensures the size of the droplet 1 and the sprayed atomization amount per hour.

[0025] figure 2 , image 3 It is a cross-sectional view of an embodiment of the low-frequency bending-vibration ultrasonic nebuliz...

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Abstract

The invention discloses a low-frequency bending vibration type secondary ultrasonic atomizer which comprises an atomizing chamber, a piezoelectric vibrator, a fixed plate, a baffle wafer, a circuit device box, a check valve and the like. The piezoelectric vibrator comprises piezoelectric ceramic and a metal wafer, is externally coated with a rubber ring, is fixedly arranged in the fixed plate and is electrically connected with a DC (Direct Current) power supply in the circuit device box; a water inlet pipeline is arranged and fixed on the left side wall of the atomizing chamber; the aperture of the water outlet end of the water inlet pipeline is 1mm; the ultrathin baffle wafer is arranged at the water outlet end of the water inlet pipeline; a bracket with an inclination angle of 30 degrees is arranged and fixed at the back of the baffle wafer and is used for limiting an upward rotating angle of a tin foil paper board wafer not to be greater than 30 degrees. A micro circuit board is arranged and fixed in the circuit device box; moreover, the right end of the atomizing chamber is provided with an external circuit connecting hole, which is convenient to connect with a power supply. The low-frequency bending vibration type secondary ultrasonic atomizer overcomes the defects of low working efficiency, serious heating of a circuit and the atomizer, difficulty in generating superfine fogdrop and the like of an existing low-frequency ultrasonic atomizer and can be applied to atomization cultivation, agricultural humidification and drug atomization treatment.

Description

[0001] technical field [0002] The invention relates to an ultrasonic nebulizer, in particular to a low-frequency bending vibration secondary ultrasonic nebulizer. Background technique [0003] Ultrasonic atomization has the advantages of small droplets, uniform size distribution, high roundness, relatively large atomization volume, and low liquid delivery pressure. Therefore, ultrasonic atomization is widely used in atomized cultivation, agricultural humidification, and chemical atomization. Treatment and semiconductor etching and so on. Ultrasonic nebulizers are mainly divided into high frequency (working frequency greater than 1 MHz) and low frequency (working frequency 20-80 kHz). High-frequency ultrasonic nebulizers have disadvantages such as low reliability, short continuous working time, high water quality requirements, inability to atomize high-viscosity liquids, small and unstable atomization volume, and changes in the chemical structure of the working medium. The...

Claims

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Application Information

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IPC IPC(8): B05B17/06
CPCB05B17/0615B05B17/0646
Inventor 高建民滕悦
Owner JIANGSU UNIV
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