Orifice piece and atomization assembly with same

Abstract

The invention discloses an orifice piece and an atomization assembly with the same. The atomization membrane assembly is arranged on a cavity and comprises a piezoelectric ring piece, a brake ring piece and the orifice piece, wherein the brake ring piece is arranged on one side of the piezoelectric ring piece; the orifice piece is disc-shaped, clamped between the piezoelectric ring piece and the brake ring piece and provided with a plurality of triggering holes and first upheaval parts; and the plurality of first upheaval parts are non-circular and protrude and stretch convexly towards the direction of the piezoelectric ring piece or the brake ring piece to form a multi-curve structure arranged in a radiation or ring shape with a specific geometric modeling pattern. Therefore, the orifice piece can be used for enlarging the atomization region and improving the atomization quantity and the liquid-gas exchange efficiency, and can be prevented from being cracked since stress is excessively concentrated at the center of the orifice piece during vibration.

Description

technical field [0001] The invention belongs to the field of atomizers, and particularly relates to an orifice sheet with a radial or circular arrangement of geometric patterns in the center of the orifice sheet and an atomization assembly using the multi-curved surface structure. Background technique [0002] The atomizer, such as the common ultrasonic atomizer, is mainly composed of piezoelectric (PZT) ceramics made of lead zirconate titanate. After a voltage is input, the ceramic body and the attached metal back plate will undergo telescopic deformation. The energy is transmitted in the form of waves, making it work at the frequency of ultrasonic waves, and its amplitude is in the range of microns, which is controlled by the input voltage. The vibration generated by the piezoelectric material is used to transmit the ultrasonic wave to the orifice sheet, so that the liquid near the orifice is subjected to the Rayleigh Wave (Rayleigh Wave) or surface wave, and the liquid is...

AI Technical Summary

Problems solved by technology

[0005] 1. When the piezoelectric ring 113 vibrates, the transmission direction of the vibration wave generated is from the outer edge of the orifice plate 112 to the center, resulting in excessive concentration of vibration energy at the center of the orifice plate 112 , causing the central area of ​​the orifice plate 112 to have too large a vibration amplitude, which is easily broken due to stress concentration, and thus shortens the service life

[0006] 2. Since the vibration energy is concentrated at the center of the orifice plate 112, the atomization area can only be formed near the center of the orifice plate 112

Because the atomization area is only formed at the center of the orifice plate 112, the effective use of the multiple percussion holes 1121 on the orifice plate 112 is reduced, and the amount of atomization is not good

[0007] 3. During the atomization process, the liquid and gas must be exchanged to maintain the balance of the internal and external pressure difference of the atomization device. Because the atomization area is too small, the spray state is unstable, and the spray volume is easy to fluctuate.

[0008] 4. Due to the excessive concentration of the spray area in the central area, the density of the atomized liquid molecules is excessively concentrated, and it is easy to make the droplets collide together, and combine to form large-sized droplets, resulting in a decrease in the atomization efficiency

However, the effective atomization range will be reduced

If you want to increase the effective atomization range, you must incr...

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