Cartridge and electronic cigarette

Abstract

A cartridge and an electronic cigarette are provided. The cartridge includes an atomizer including a supporting base and an atomizing head installed in the supporting base; a liquid storage container installed on the supporting base, a liquid storage chamber being defined between the liquid storage container and the supporting base; a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head; a constant pressure member installed in the supporting base and only allowing external air to flow into the liquid storage chamber in one direction. Through the arrangement of the constant pressure member, the air in the liquid storage chamber can be quickly replenished, so that the air pressure in the liquid storage chamber is balanced, and the piezoelectric pump can pump the e-liquid more smoothly.

What is claimed is: 
     
         1 . A cartridge comprising:
 an atomizer comprising a supporting base and an atomizing head installed in the supporting base;   a liquid storage container installed on the supporting base, a liquid storage chamber being provided between the liquid storage container and the supporting base;   a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head; and   a constant pressure member installed in the supporting base and only allowing external air to flow into the liquid storage chamber in one direction.   
     
     
         2 . The cartridge according to  claim 1 , wherein the supporting base is provided with a constant pressure hole in communication with the external air and the liquid storage chamber, the constant pressure member is installed in the constant pressure hole. 
     
     
         3 . The cartridge according to  claim 2 , wherein the supporting base comprises an atomizing seat and an atomizing bracket installed on the atomizing seat, the atomizing seat is provided with an air inlet hole in communication with the external environment, a mounting hole communicating the air inlet hole and the liquid storage chamber is provided through the atomizing bracket, the air inlet hole and the mounting hole together serve as the constant pressure hole. 
     
     
         4 . The cartridge according to  claim 1 , wherein the constant pressure member is a one-way valve or a waterproof breathable membrane. 
     
     
         5 . The cartridge according to  claim 1 , wherein an outer periphery of the supporting base is provided with an assembling portion, the liquid pump is installed in the assembling portion. 
     
     
         6 . The cartridge according to  claim 5 , wherein the supporting base comprises an atomizing bracket, the atomizing head is installed in the atomizing bracket; the atomizing bracket comprises a top portion facing the user's mouth, a bottom portion facing away from the top portion, and a side portion connected between the top portion and the bottom portion;
 the assembling portion is formed on the side portion of the atomizing bracket, the liquid pump is installed into the assembling portion and is located in the flow path of the e-liquid to serve as a part of the fluid passage communicating the liquid storage chamber and the atomizing head.   
     
     
         7 . The cartridge according to  claim 1 , wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; a liquid outlet in communication with the atomizing head is provided inside the atomizing bracket; an included angle between a central axis of the fluid passage between the liquid pumping port and the liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°. 
     
     
         8 . The cartridge according to  claim 1 , wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; the liquid suction port and the liquid pumping port are both located on the same side of the pump body facing the atomizing head. 
     
     
         9 . An electronic cigarette comprising the cartridge according to  claim 1  and a battery device configured for providing electric driving for the cartridge. 
     
     
         10 . A cartridge comprising:
 an atomizer comprising a supporting base and an atomizing head installed in e supporting base;   a liquid storage container installed on the supporting base, a liquid storage chamber being provided between the liquid storage container and the supporting base; and   a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head;   wherein an outer periphery of the supporting base is provided with an assembling portion, and the liquid pump is installed in the assembling portion.   
     
     
         11 . The cartridge according to  claim 10 , wherein the supporting base comprises an atomizing bracket, the atomizing head is installed in the atomizing bracket; the atomizing bracket comprises a top portion facing the user's mouth, a bottom portion facing away from the top portion, and a side portion connected between the top portion and the bottom portion;
 the assembling portion is formed on the side portion of the atomizing bracket, the liquid pump is installed into the assembling portion and is located in the flow path of the e-liquid to serve as a part of the fluid passage communicating the liquid storage chamber and the atomizing head.   
     
     
         12 . The cartridge according to  claim 11 , wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; a liquid outlet in communication with the atomizing head is provided inside the atomizing bracket; an included angle between a central axis of the fluid passage between the liquid pumping port and the liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°. 
     
     
         13 . The cartridge according to  claim 10 , wherein the liquid pump comprises a pump body, the pump body is provided with a liquid suction port in communication with the liquid storage chamber and a liquid pumping port in communication with the atomizing head; the liquid suction port and the liquid pumping port are both located on the same side of the pump body facing the atomizing head. 
     
     
         14 . The cartridge according to  claim 13 , wherein the liquid pump is a piezoelectric pump. 
     
     
         15 . The cartridge according to  claim 11 , wherein the supporting base comprises an atomizing seat installed to the bottom portion of the atomizing bracket, the atomizing seat is provided with an air inlet hole in communication with the external environment, a mounting hole communicating the air inlet hole and the liquid storage chamber is provided through the atomizing bracket;
 the cartridge further comprises a constant pressure member, the constant pressure member is installed in the constant pressure hole and only allows external air to flow into the liquid storage chamber in one direction.   
     
     
         16 . The cartridge according to  claim 15 , wherein the constant pressure member extends toward the top of the liquid storage chamber and into the air layer above the liquid storage chamber. 
     
     
         17 . The cartridge according to  claim 15 , wherein the constant pressure member is a duckbill one-way valve. 
     
     
         18 . The cartridge according to  claim 10 , wherein the atomizing head comprises a liquid absorbing member and a heating member, the heating member is a porous ceramic heating member, and the liquid absorbing member is made of porous ceramic. 
     
     
         19 . An electronic cigarette comprising the cartridge according to  claim 10  and a battery device configured for providing electric driving for the cartridge.