Electronic cigarette and circuit used in the same

Abstract

The present invention provides an electronic cigarette includes a power supply, a micro-controller and a heater for heating and producing smoke, which are orderly and electrically connected to constitute a loop; further includes at least two airflow sensors electrically connected to the micro-controller for sensing the airflow in the electronic cigarette and outputting sensed signal, the micro-controller conducts the loop according to sensed signal. The electronic cigarette and its circuit utilize at least two airflow sensors electrically connected to the micro-controller and sensing the airflow in the electronic cigarette and outputting sensed signal such that the micro-controller conducts the loop according to the sensed signal to achieve exponentially reducing malfunction rate of electronic cigarettes as a result of the airflow sensor failure. The electronic cigarette reduces the quality risks of electronic cigarette. The electronic cigarette and the circuit unlikely cause malfunction, and have reliable quality and stable performance.

1 . An electronic cigarette circuit comprising a power supply, micro-controller and a heater for heating and producing smoke, which constitute a loop by electrically connected in turn, wherein the electronic cigarette circuit further comprising at least two airflow sensors electrically connected to the micro-controller and adapted for sensing airflow in the electronic cigarette and outputting sensing signal, the micro-controller conducts the loop according to the sensing signal. 
     
     
         2 . According to the electronic cigarette circuit in  claim 1 , wherein the number of the micro-controllers is at least two, which respectively electrically connected with an airflow sensor. 
     
     
         3 . According to the electronic cigarette circuit in  claim 2 , wherein one micro-controller and one airflow sensor are integrated on a circuit board to constitute an airflow sensor-controller, the two airflow sensor-controllers are connected in series. 
     
     
         4 . According to the electronic cigarette circuit in  claim 1 , wherein the number of the micro-controllers is one, which electrically connected with two airflow sensors, the micro-controller conducts the loop according to the sensing signal detected by the two airflow sensors. 
     
     
         5 . According to the electronic cigarette circuit in  claim 1 , wherein the airflow sensor is further used for obtaining airflow direction of the electronic cigarette to determine the type of air pressure and output the sensing signal. 
     
     
         6 . According to the electronic cigarette circuit in  claim 1 , wherein the micro-controller is a single-chip microcomputer. 
     
     
         7 . An electronic cigarette comprising an inhalation pole and a power supply pole adapted to connect with each other, wherein the electronic cigarette further comprising an electronic cigarette circuit disposed therein, the electronic cigarette circuit comprising a power supply, micro-controller and a heater for heating and producing smoke, which constitute a loop by electrically connected in turn, wherein the electronic cigarette circuit further comprising at least two airflow sensors electrically connected to the micro-controller and adapted for sensing airflow in the electronic cigarette and outputting sensing signal, the micro-controller conducts the loop according to the sensing signal. 
     
     
         8 . According to the electronic cigarette in  claim 7 , wherein the inhalation pole has an atomizer disposed therein, the atomizer has the heater disposed therein. 
     
     
         9 . According to the electronic cigarette in  claim 7 , wherein the power pole has lithium batteries or Farad capacitor inside for power supplying. 
     
     
         10 . According to the electronic cigarette in  claim 7 , wherein the inhalation pole and the power supply pole are connected by screwthreads. 
     
     
         11 . According to the electronic cigarette in  claim 7 , wherein the number of the micro-controllers is at least two, which respectively electrically connected with an airflow sensor. 
     
     
         12 . According to the electronic cigarette in  claim 8 , wherein one micro-controller and one airflow sensor are integrated on a circuit board to constitute an airflow sensor-controller, the two airflow sensor-controllers are connected in series. 
     
     
         13 . According to the electronic cigarette in  claim 7 , wherein the number of the micro-controllers is one, which electrically connected with two airflow sensors, the micro-controller conducts the loop according to the sensing signal detected by the two the airflow sensors. 
     
     
         14 . According to the electronic cigarette in  claim 7 , wherein the airflow sensor is further used for obtaining airflow direction of the electronic cigarette to determine the type of air pressure and output the sensing signal. 
     
     
         15 . According to the electronic cigarette in  claim 7 , wherein the micro-controller is a single-chip microcomputer.