Patent ID: 9718078
Date: 2017-08-01
CPC Classifications: B05B

Claim:
1. A piezoceramic based atomizer for atomizing a liquid into a form of micro-droplet or mist, comprising: a piezoceramic based atomization unit comprising: and a liquid absorbing medium having a top surface and a bottom surface opposite to the top surface for absorbing the liquid at the bottom surface and delivering the absorbed liquid to the top surface, wherein the top surface contacts the lower surface of the individual micro-perforated membrane for allowing the absorbed liquid to wet the lower surface of the individual micro-perforated membrane; wherein: the liquid absorbing medium further comprises at least one sunk area recessed from the top surface, causing the lower surface of the individual micro-perforated membrane not in contact with the top surface over the at least one sunk area; and the at least one sunk area is disposed underneath the one or more micro-holes of the individual micro-perforated membrane, preventing the one or more micro-holes from pumping the liquid directly from the liquid absorbing medium to thereby balance a liquid feeding speed and an atomization speed, and suppress overheating of the piezoceramic based atomization unit simultaneously.