Electronic cigarette and airflow switch bracket, airflow switch assembly and power supply apparatus thereof

Abstract

An airflow switch bracket includes a base provided with a groove for accommodating an airflow switch, the groove extending from the bottom surface of the base toward a top surface of the base so that a thin-walled layer sealed on the groove is formed on the top surface of the base. The thin-walled layer is deformable when an air flow passes by, so that a negative pressure is generated in a space between the groove and the airflow switch to control the on/off of the airflow switch. The airflow switch bracket of the invention adopts a thin-walled layer to replace the arrangement of through holes, and thus the airflow switch bracket is configured as a closed bracket. It can effectively prevent tobacco juice from leaking to the airflow switch or contaminating the adapter board or a battery, thereby effectively increasing the service life and safety performance of the electronic cigarette.

1 . An airflow switch bracket of an electronic cigarette, comprising a base, a bottom surface of the base being provided with a groove for accommodating an airflow switch, the groove extending from the bottom surface of the base toward a top surface of the base so that a thin-walled layer sealed on the groove is formed on the top surface of the base;
 the thin-walled layer being deformable when an air flow passes by, so that a negative pressure is generated in a space between the groove and the airflow switch to control the on/off of the airflow switch.   
     
     
         2 . The airflow switch bracket according to  claim 1 , wherein an outer circumference of the base is circular, and the groove and the thin-walled layer are also circular, respectively. 
     
     
         3 . The airflow switch bracket according to  claim 1 , wherein the bottom surface of the base is further provided with two electrode slots located on two sides of the groove and isolated from the groove, the top surface of the base is provided with two electrode holes, the two electrode holes are located on two sides of the thin-walled layer and in communication with the corresponding electrode slots respectively. 
     
     
         4 . The airflow switch bracket according to  claim 1 , wherein the thin-walled layer has a thickness of 0.05±0.02 mm. 
     
     
         5 . The airflow switch bracket according to  claim 1 , wherein the groove comprises a first groove portion configured to accommodate the airflow switch therein and a second groove portion configured to space the airflow switch from the thin-walled layer, the first groove portion is in communication with the second groove portion, the second groove portion is located between the first groove portion and the thin-walled layer with an outer circumferential size of the second groove portion being less than an outer circumferential size of the first groove portion. 
     
     
         6 . An airflow switch assembly, comprising an adapter board, an airflow switch, and the airflow switch bracket according to  claim 1 , the airflow switch being connected to the adapter board and accommodated in the groove in the base of the airflow switch bracket, an outer circumference of the airflow switch being in a sealing fit with an inner circumference of the groove. 
     
     
         7 . The airflow switch assembly according to  claim 6 , wherein the airflow switch assembly further comprises two electrodes connected to the adapter board, the two electrodes penetrating into the electrode slots of the base, with their top ends going out of the electrode holes in communication with the electrode slots. 
     
     
         8 . (canceled) 
     
     
         9 . An electronic cigarette, comprising a power supply device and an atomization device connected to each other, and a suction nozzle fitted on an end of the atomization device away from the power supply device, wherein the power supply device comprises the airflow switch assembly according to  claim 6 , and the electrodes of the airflow switch assembly are electrically connected with conductors of the atomization device. 
     
     
         10 . The electronic cigarette according to  claim 9 , wherein an air inlet is arranged at a side of the atomization device or at a junction between the atomization device and the power supply device; the atomization device is provided therein with an airflow channel communicating the air inlet and the suction nozzle; when an air flow entering the atomization device through the air inlet passes over the thin-walled layer of the airflow switch assembly, the thin-walled layer is deformed so that a negative pressure is generated in the airflow switch assembly to control the on/off of the airflow switch.