Microporous atomizing sheet

Abstract

The invention discloses a microporous atomizing sheet. The microporous atomizing sheet comprises a ring-shaped piezoelectric ceramic sheet and a metal diaphragm. The metal diaphragm is mounted on the lower portion of the piezoelectric ceramic sheet and is larger than the piezoelectric ceramic sheet in area. The thickness of the metal diaphragm is within the range of 0.06-0.08 mm. The metal diaphragm is designed as a circular thin sheet body. A protrusion is arranged on the part, in the ring of the piezoelectric ceramic sheet, of the metal diaphragm. The piezoelectric ceramic sheet is correspondingly designed into the circular-ring-shaped sheet body with the outer diameter smaller than that of the metal diaphragm. All the atomizing holes are formed in the protrusion. The microporous atomizing sheet is simple in structure, large in mist output, small in current, wide in application range and capable of draining bubbles generated in the atomizing process.

Description

Technical field [0001] The invention relates to a microporous atomization sheet, which belongs to the field of liquid atomization. Background technique [0002] Most of the atomization sheets used in the existing atomization devices are composed of piezoelectric ceramic sheets and metal diaphragms. The metal diaphragms are welded to the edges of the piezoelectric ceramic sheets, and the metal diaphragms are evenly distributed with micropores. There are silver printing areas on both sides of the piezoelectric ceramic sheet. Among them, the metal diaphragm is welded to the edge of the piezoelectric ceramic sheet, so the stress generated at the welding place is relatively concentrated, which is likely to cause damage to the micropores on the metal diaphragm, thereby greatly reducing the service life of the metal diaphragm; The two sides of the ceramic sheet are provided with silver-printing areas. Although it is convenient to weld with the metal diaphragm and to connect the positiv...

AI Technical Summary

Problems solved by technology

Among them, the metal diaphragm is welded on the edge of the piezoelectric ceramic sheet, so the stress generated at the welding place is relatively concentrated, which is easy to cause damage to the micropores on the metal diaphragm, thereby greatly reducing the service life of the metal diaphragm; There are silver printing areas on both sides of the ceramic sheet, although it is convenient to weld with the metal diaphragm and connect the positive and negative wires, but due to the small thickness of the piezoelectric ceramic sheet, the silver printing areas on both sides are easy to contact and cause a short circuit

Therefore, the existing atomizing sheets have disadvantages such as short service life, complicated processing, and small mist output, and are not suitable for use in products requiring high precision. This type of atomizing sheet is prone to air bubbles during the liquid atomization process. The pore size of the atomizing sheet is small, and the air bubbles cannot be discharged, which will affect the atomization effect of the liquid

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