Electronic cigarette with breathing sensing function

Abstract

An electronic cigarette, includes a mouthpiece section, the mouthpiece section has a suction nozzle; a rod section; the rod section has a first cylinder; a power source received in the first cylinder; an airflow sensor received in the first cylinder and arranged along a longitudinal direction of the power source; an atomizing section has a second cylinder, a smoke duct received in the second cylinder and being passed through the second cylinder; an atomizer installed at the smoke duct, the atomizer has a waterproof membrane, the waterproof membrane sealed a bottom opening of the smoke duct. The waterproof membrane, the suction nozzle, the smoke duct and the first cylinder are connected to each other to form an airflow channel. The waterproof membrane has a material which prevents the smoke oil from leaking through the waterproof membrane, and allows an airflow of the airflow channel to pass through the waterproof membrane.

What is claimed is: 
     
         1 . An electronic cigarette, comprising:
 a mouthpiece section having a suction nozzle;   a rod section having a first cylinder;   a power source received in the first cylinder;   an airflow sensor received in the first cylinder and arranged along a longitudinal direction of the power source;   an atomizing section having a second cylinder, one end of the second cylinder connected to the mouthpiece section, the other end of the second cylinder connected to the first cylinder, the second cylinder containing smoke oil;   a smoke duct received in the second cylinder and being passed through the second cylinder; and   an atomizer installed at a bottom of the smoke duct, the smoke duct having an oil inlet communicating with the atomizer, a bottom of the atomizer having a waterproof membrane, the waterproof membrane sealed a bottom opening of the smoke duct, the waterproof member, the suction nozzle, the smoke duct and the first cylinder being connected to each other to form an airflow channel, the waterproof membrane having a material which prevents the smoke oil from leaking through the waterproof membrane, and allows an airflow of the airflow channel to pass through the waterproof membrane.   
     
     
         2 . The electronic cigarette as claimed in  claim 1 , wherein the waterproof membrane is clamped between two rubber rings which are arranged in the smoke duct. 
     
     
         3 . The electronic cigarette as claimed in  claim 1 , wherein the atomizer comprises a cylindrical heater, a heating wire in a cavity of the heater, and an oil-absorbing cotton covering an outer wall of the heater, the oil inlet has a plurality of oil inlet holes opened on a side wall of the smoke duct. 
     
     
         4 . The electronic cigarette as claimed in  claim 1 , wherein a bottom of the second cylinder has a connector head with a T-shaped longitudinal section and a ring structure, the second cylinder is detachably connected to the first cylinder through the connector head. 
     
     
         5 . The electronic cigarette as claimed in  claim 4 , wherein the smoke duct extends downward to an outside of the second cylinder, a top of the connector head is sleeved on an outer wall of the smoke duct, a bottom of the connector head extends into the first cylinder and is engaged with the first cylinder. 
     
     
         6 . The electronic cigarette as claimed in  claim 5 , wherein a sleeve is inserted into a top opening of the first cylinder, a cavity of the connector head receives a hollow first conductive pillar, a cavity of the sleeve receives a hollow second conductive pillar, when the connector head and the sleeve are connected, the first conductive pillar and the second conductive pillar abut each other, the atomizer comprises a cylindrical heater, a heating wire in a cavity of the heater, a positive end of the heating wire is electrically connected to the first conductive pillar, and a positive end of the power source is electrically connected to the second conductive pillar through the airflow sensor, the sleeve engages with the connector head. 
     
     
         7 . The electronic cigarette as claimed in  claim 6 , wherein an inner wall of the connector head has a ring-shaped first flange, an inner wall of the sleeve has a ring-shaped second flange, the first conductive pillar and the second conductive pillar are engaged with the first flange and the second flange respectively. 
     
     
         8 . The electronic cigarette as claimed in  claim 7 , wherein both the connector head and the sleeve are formed of metal material, the first insulating sleeve is sleeved on a first conductive pillar, a second insulating sleeve is sleeved on the second conductive pillar, the first insulating sleeve defines a first slot for connecting to the first flange, and the second insulating sleeve defines a second slot for connecting to the second flange, the connector head separates from the hollow first conductive pillar by the first insulating sleeve, the sleeve separates from the hollow second conductive pillar by the second insulating sleeve. 
     
     
         9 . The electronic cigarette as claimed in  claim 6 , wherein a top of the sleeve protrudes outward to form an annular flange, a top of the first cylinder abuts on the annular flange, outer surfaces of the annular flange and the sleeve define at least one air inlet communicating with an inside of the first cylinder. 
     
     
         10 . The electronic cigarette as claimed in  claim 1 , wherein the mouthpiece section comprises a sealing joint having a hollow structure and the suction nozzle plugged to the sealing joint, the sealing joint is sleeved on a top of the smoke duct and is connected to the second cylinder. 
     
     
         11 . An electronic cigarette, comprising:
 a first cylinder;   a power source received in an inside of the first cylinder;   an airflow sensor received in the inside of the first cylinder, the airflow sensor arranged bellow the power source or up the power source, the airflow sensor arranged along a longitudinal direction of the first cylinder;   a second cylinder connected to a top of the first cylinder;   a smoke duct passing through the second cylinder;   an atomizer being installed at a bottom of the smoke duct and containing smoke oil, the smoke duct having an oil inlet communicating with the atomizer, a bottom of the atomizer having a waterproof membrane, the waterproof membrane being sealed a bottom opening of the smoke duct, the waterproof member, the smoke duct and the first cylinder being connected to each other to form an airflow channel, the waterproof membrane having a material which prevents the smoke oil from leaking through the waterproof membrane, and allows an airflow of the airflow channel to pass through the waterproof membrane.   
     
     
         12 . The electronic cigarette as claimed in  claim 11 , wherein the atomizer has a heating wire with a spiral structure. 
     
     
         13 . The electronic cigarette as claimed in  claim 12 , wherein the smoke duct has a guiding cavity and an atomization cavity communicated to and arranged below the guiding cavity, the atomizer is positioned in the atomization cavity. 
     
     
         14 . The electronic cigarette as claimed in  claim 13 , wherein the waterproof membrane is sealed to a bottom opening of the atomization cavity of the smoke duct. 
     
     
         15 . The electronic cigarette as claimed in  claim 11 , wherein a connector head is positioned at a bottom of the second cylinder and interconnected the top of the first cylinder and the bottom of the second cylinder. 
     
     
         16 . The electronic cigarette as claimed in  claim 15 , wherein a sleeve is positioned at the top of the first cylinder and engaged with the connector head. 
     
     
         17 . The electronic cigarette as claimed in  claim 11 , wherein a first conductive pillar is positioned at a bottom of the second cylinder. 
     
     
         18 . The electronic cigarette as claimed in  claim 17 , wherein a second conductive pillar is positioned at the top of the first cylinder. 
     
     
         19 . An electronic cigarette, comprising:
 a case;   a power source positioned in the case;   an airflow sensor positioned in the case;   a suction nozzle connected to the case;   a smoke duct positioned in the case, the smoke duct having a first opening and a second opening, the first opening communicated with the suction nozzle; and   an atomizer communicated with the second opening of the smoke duct, the atomizer containing smoke oil, a side of the atomizer being sealed by a waterproof membrane, the waterproof membrane having a material which prevents the smoke oil from leaking through the waterproof membrane, and allows an airflow of the smoke duct to pass through the waterproof membrane.   
     
     
         20 . The electronic cigarette as claimed in  claim 19 , wherein the atomizer is received in the second opening of the smoke duct, the waterproof membrane seals the second opening of the smoke duct.