Patent ID: 7141215
Filing Date: 2006-11-28
Classification: A61L,B60H

Abstract:
1. An aromatic evaporator comprising: one base, one heater, one heat conduction aluminum plate, one constant temperature controller, one plug, one ceramic carrier and one cover, wherein a positive and negative contact are set on one side of said plug inside said base to provide D.C. power with another end connected to said heater changing electricity into heat in a middle of said base sits said constant temperature controller controlling an electric conduction circuit of said heater, said heat conduction aluminum plate is located on a top of said heater for heat conduction, and said ceramic carrier having an attar is placed above said heat conduction aluminum plate to release an aroma through heating, said cover is placed on top of a trough of said base exhausting the aroma, wherein said constant temperature controller contains one electric conduction switch and one memory alloy plate, wherein said electric conduction switch is connected with said positive and said negative contact of said plug for electric conduction while said memory allow plate is connected to said heat conduction aluminum plate on a first end and to one flexible contact plate of said electric conduction switch on a second end, said memory allow plate becomes straight when receiving a certain degree of heat transmitted from said heat conduction aluminum plate so as to control displacement of said flexible contact plate, wherein said memory alloy plate straightens under a higher temperature to stop said flexible contact plate from conducting electricity and curves under a lower temperature to force said flexible contact plate to resume conducting, thus said memory alloy plate switches on and off said electric conduction circuit of said heater intermittently and providing a secure constant-temperature from said heater.