Electronic cigarette and air switch thereof

An electronic cigarette, comprising an air switch, wherein the air switch comprises a switch body and an airflow channel extending through the switch body;

• the switch body comprises an airflow sensor for sensing air passing through the airflow channel and a controlling device electrically connected to the airflow switch;
• the airflow sensor comprises a negative chamber communicating with the airflow channel, a balance chamber communicating with the outside of the air switch, a first electrode plate and a second electrode plate parallel to and being spaced apart from the first electrode plate;
• the second electrode plate comprises a conductive film, the conductive film is arranged between the negative chamber and the balance chamber, and cooperates with the first electrode plate to form a parallel-plate capacitor to detect a difference in the pressure between the negative chamber and the balance chamber;
• the parallel-plate capacitor is electrically connected to the controlling device, to transmit the difference signal to the controlling device;
• the switch body comprises a first air flowing pipe, a conductive case, a light emitting device, a first conductive bracket, an insulating gasket, and a second conductive bracket;
• the first air flowing pipe defines the airflow channel;
• the case comprises an annular bottom wall, a cylindrical sidewall protruding from an outer edge of the bottom wall, and a top wall fixed to a top end of the cylindrical sidewall away from the bottom wall;
• wherein the light emitting device comprises a driving circuit board, and a light emitting member fixed to a bottom surface of the driving circuit board;
• the driving circuit board defines a first central hole for allowing the second air flowing pipe extending through, and a plurality of first apertures arranged at a side of the first central hole;
• the driving circuit board is mounted on a top surface of the bottom wall and is electrically connected to the bottom wall;
• wherein the first conductive bracket is arranged on the top surface of the driving circuit board and is electrically connected to the driving circuit board;
• the first electrode plate is electrically connected to a top end of the first conductive bracket, the first electrode plate defines a second central hole for allowing the air flowing pipe extending through, and a plurality of second apertures;
• the second aperture are arranged surrounding the second central hole;
• the conductive film defines a third central hole for allowing the air flowing pipe extending through, the conductive film is mounted on the insulating gasket and is insulated from the first electrode plate, to cooperate with the second electrode plate to form a parallel-plate capacitor;
• the second conductive bracket is mounted on and electrically connected to the conductive film;
• wherein the controlling device comprises a controlling circuit board, the controlling circuit board define a fourth central hole for allowing the first air flowing pipe extending through, the controlling circuit board is disposed in the clearance between the top wall of the case and the top end surface of the second conductive bracket, and is electrically connected to the top wall and the second conductive bracket;
• wherein the first air flowing pipe extends through the first central hole, the second central hole, the third central hole and the fourth central hole, and further electrically connect an inner wall of the controlling circuit board with the inner wall of the driving circuit board;
• wherein the conductive film, the first conductive bracket, the driving circuit board, the insulating gasket and the second air flowing pipe cooperatively define the balance chamber;
• the conductive film, the second conductive bracket, the controlling circuit board and the first air flowing pipe cooperatively define the annular negative chamber.

An electronic cigarette, comprising an air switch, wherein the air switch comprises a switch body and an airflow channel extending through the switch body;

• the electronic cigarette further comprises a battery device and an atomizer device mounting base;
• wherein the battery device comprises a cylindrical body and a second air flowing pipe extending axially through the cylindrical body, the second air flowing pipe is connected to an end of the first air flowing pipe;
• the atomizer device mounting base communicates with an end of the second air flowing pipe away from the first air flowing pipe;
• the battery device further comprises comprising a first pluggable conductive member, a second pluggable conductive member, a third pluggable conductive member, a fourth pluggable conductive member, and a fifth pluggable conductive member, the first and second pluggable conductive members face the atomizer device mounting base, the third pluggable conductive member, the fourth pluggable conductive member, and the fifth pluggable conductive member face the air switch;
• the first pluggable conductive member is electrically connected to one of an anode and a cathode of the battery device directly, the second pluggable conductive member is electrically connected to the third pluggable conductive member directly;
• the third pluggable conductive member, the fourth pluggable conductive member, and the fifth pluggable conductive member engage with the first pluggable conductive body, the second pluggable conductive body, and the third pluggable conductive body respectively, the third pluggable conductive body is electrically connected to the other one of the anode and cathode of the battery device.