Aerosol-generating device

Abstract

An aerosol-generating device is provided. The device includes a liquid storage portion, a first atomization cavity, a second atomization cavity, a first heating element, a second heating element, and a switching assembly. A first liquid storage cavity, a second liquid storage cavity, and a main airway are defined in the liquid storage portion. A first movable member of the switching assembly is movably arranged, to cause the main airway to be selectively in communication with any one of the first atomization cavity or the second atomization cavity, or to cause the main airway to be in communication with both the first atomization cavity and the second atomization cavity.

What is claimed is: 
     
         1 . An aerosol-generating device comprising:
 a liquid storage portion, comprising a proximal end and a distal end opposite to each other along a longitudinal direction, wherein a first liquid storage cavity and a second liquid storage cavity extending in parallel and a main airway configured to provide an aerosol flow path are defined inside the liquid storage portion, and the main airway extends between the proximal end and the distal end of the liquid storage portion;   a first atomization cavity, adjacent to the distal end of the liquid storage portion and provided corresponding to the first liquid storage cavity;   a second atomization cavity, adjacent to the distal end of the liquid storage portion and provided corresponding to the second liquid storage cavity;   a first heating element, arranged in the first atomization cavity, wherein a side of the first heating element is in communication with the corresponding first liquid storage cavity, and is configured to absorb a liquid substrate in the first liquid storage cavity and heat and atomize the liquid substrate;   a second heating element, arranged in the second atomization cavity, wherein a side of the second heating element is in communication with the corresponding second liquid storage cavity, and is configured to absorb a liquid substrate in the second liquid storage cavity and heat and atomize the liquid substrate; and   a switching assembly, comprising a first movable member, wherein the first movable member is movably arranged, to cause the main airway to be selectively in communication with any one of the first atomization cavity or the second atomization cavity, or to be in communication with both the first atomization cavity and the second atomization cavity.   
     
     
         2 . The aerosol-generating device according to  claim 1 , wherein:
 a first aerosol outlet is provided on a cavity wall of the first atomization cavity, and the first aerosol outlet is configured to communicate the first atomization cavity with the main airway; a second aerosol outlet is provided on a cavity wall of the second atomization cavity, and the second aerosol outlet is configured to communicate the second atomization cavity with the main airway; and   the first movable member comprises a first position and a second position, wherein:
 when the first movable member is located at the first position, the first movable member opens the first aerosol outlet and blocks the second aerosol outlet, and the first atomization cavity is in communication with the main airway; or 
 when the first movable member is located at the second position, the first movable member blocks the first aerosol outlet and opens the second aerosol outlet, and the second atomization cavity is in communication with the main airway. 
   
     
     
         3 . The aerosol-generating device according to  claim 2 , wherein the first movable member further comprises a third position, when the first movable member is located at the third position, the first movable member opens both the first aerosol outlet and the second aerosol outlet, and the first atomization cavity and the second atomization cavity are both in communication with the main airway. 
     
     
         4 . The aerosol-generating device according to  claim 2 , wherein:
 an end of the main airway is located between the first atomization cavity and the second atomization cavity; and   the first movable member comprises a movable portion, a first sealing portion, and a second sealing portion, wherein:
 one end of the movable portion is located in the first atomization cavity, the other end is located in the second atomization cavity, and the movable portion is movably arranged; 
 the first sealing portion is accommodated in the first atomization cavity, the first sealing portion is connected to the one end of the movable portion, and the first sealing portion is configured to seal the first aerosol outlet; 
 the second sealing portion is accommodated in the second atomization cavity, the second sealing portion is connected to the other end of the movable portion, and the second sealing portion is configured to seal the second aerosol outlet; and 
 the first movable member moves along a transverse direction to realize switching of the positions. 
   
     
     
         5 . The aerosol-generating device according to  claim 3 , wherein:
 the aerosol-generating device further comprises a mounting assembly arranged corresponding to the first movable member, wherein:
 a first air inlet channel and a second air inlet channel are provided in the mounting assembly, the first air inlet channel comprises a first air inlet hole and a first air outlet hole, and the first air outlet hole is in communication with the first atomization cavity; and 
 the second air inlet channel comprises a second air inlet hole and a second air outlet hole, and the second air outlet hole is in communication with the second atomization cavity; and 
   the switching assembly further comprises a second movable member arranged corresponding to the mounting assembly, wherein the second movable member is movably arranged, to selectively block any one of the first air inlet hole or the second air inlet hole, or open both the first air inlet hole and the second air inlet hole.   
     
     
         6 . The aerosol-generating device according to  claim 5 , wherein the mounting assembly is arranged at the distal end of the liquid storage portion, and both the first atomization cavity and the second atomization cavity are defined between the mounting assembly and the liquid storage portion. 
     
     
         7 . The aerosol-generating device according to  claim 5 , wherein:
 the second movable member is connected to the first movable member, to cause the second movable member to move synchronously with the first movable member; and   when the first movable member is located at the first position, the second movable member blocks the second air inlet hole, when the first movable member is located at the second position, the second movable member blocks the first air inlet hole, and when the first movable member is located at the third position, the second movable member opens both the first air inlet hole and the second air inlet hole.   
     
     
         8 . The aerosol-generating device according to  claim 7 , wherein:
 the second movable member comprises a first connection portion and a main body portion, wherein the first connection portion is configured to be connected to the first movable member, wherein the main body portion is configured to block the first air inlet hole and the second air inlet hole; and   the first connection portion is arranged across the mounting assembly, wherein one end of the first connection portion is connected to the first movable member, and the other end is connected to the main body portion.   
     
     
         9 . The aerosol-generating device according to  claim 7 , wherein the first air inlet hole is located on a side of the mounting assembly close to the second atomization cavity, and the second air inlet hole is located on a side of the mounting assembly close to the first atomization cavity. 
     
     
         10 . The aerosol-generating device according to  claim 9 , wherein:
 the mounting assembly comprises a first mounting member and a second mounting member;   the first mounting member is closer to an atomization cavity than the second mounting member; and   the first air inlet hole, the second air inlet hole, the first air inlet channel, and the second air inlet channel are provided on the second mounting member, and the first air outlet hole and the second air outlet hole are provided on the first mounting member.   
     
     
         11 . The aerosol-generating device according to  claim 10 , wherein the first air inlet channel and the second air inlet channel are both cavities provided on the second mounting member and basically extending along a transverse direction. 
     
     
         12 . The aerosol-generating device according to  claim 7 , wherein:
 the switching assembly further comprises a toggle member, the toggle member being connected to the second movable member, and   the toggle member is movably arranged, to drive the first movable member to move between the first position and the second position.   
     
     
         13 . The aerosol-generating device according to  claim 1 , wherein the main airway is located between the first liquid storage cavity and the second liquid storage cavity. 
     
     
         14 . The aerosol-generating device according to  claim 1 , wherein:
 the aerosol-generating device further comprises a control circuit board; and   an electronic toggle switch is arranged on the control circuit board, the electronic toggle switch is configured to be linked with the first movable member in the switching assembly, so as to selectively establish a conductive path between one of the first heating element and the second heating element and a power supply, or to establish a conductive path between each of the first heating element and the second heating element and a power supply.   
     
     
         15 . An aerosol-generating device comprising:
 a liquid storage portion, comprising a proximal end and a distal end opposite to each other along a longitudinal direction, wherein a first liquid storage cavity and a second liquid storage cavity and a main airway configured to provide an aerosol flow path are defined inside the liquid storage portion, and the main airway extends between the proximal end and the distal end of the liquid storage portion;   a first atomization cavity, adjacent to the distal end of the liquid storage portion and provided corresponding to the first liquid storage cavity;   a second atomization cavity, adjacent to the distal end of the liquid storage portion and provided corresponding to the second liquid storage cavity;   a first heating element, arranged in the first atomization cavity, wherein a side of the first heating element is in communication with the corresponding first liquid storage cavity, and is configured to absorb a liquid substrate in the first liquid storage cavity and heat and atomize the liquid substrate;   a second heating element, arranged in the second atomization cavity, wherein a side of the second heating element is in communication with the corresponding second liquid storage cavity, and is configured to absorb a liquid substrate in the second liquid storage cavity and heat and atomize the liquid substrate; and   a switching assembly, configured to selectively communicate the main airway with any one of the first atomization cavity or the second atomization cavity, wherein when the main airway is in communication with the first atomization cavity, at least part of the switching assembly is configured to establish a conductive path between the first heating element and a power supply; or when the main airway is in communication with the second atomization cavity, at least part of the switching assembly is configured to establish a conductive path between the second heating element and a power supply.