Atomizing core, atomizer and electronic atomizing device

Abstract

An atomizing core is configured to be electrically connected to a battery of an electronic atomizing device, the electronic atomizing device defines an air suction channel, and the electronic atomizing device includes a mouthpiece at an end of the air suction channel. The atomizing core includes a base and a heater. The base is configured to store liquid and has an atomizing surface located in the air suction channel, wherein the atomizing surface is arranged to face away from the battery and towards the mouthpiece. The heater is arranged on the atomizing surface and configured to atomize the liquid.

What is claimed is: 
     
         1 . An atomizer, comprising:
 a housing, one end of the housing being provided with a mouthpiece;   a liquid reservoir;   a connecting assembly at least partially received in the housing; and   an atomizing core mounted on the connecting assembly, the atomizing core comprising:
 a base having an atomizing surface arranged to face towards the mouthpiece, the base absorbing liquid from the liquid reservoir; and 
 a heater arranged on the atomizing surface and configured to atomize the liquid; 
   wherein the connecting assembly is provided with an inner cavity facing the atomizing surface and in fluid communication with the mouthpiece, and cross-sectional dimension of at least a part of the inner cavity gradually decreases in a direction away from the atomization surface.   
     
     
         2 . The atomizer according to  claim 1 , further comprising an air conduit, wherein the mouthpiece is provided at an end of the air conduit, and the air conduit is in fluid communication with the atomizing surface and the mouthpiece. 
     
     
         3 . The atomizer according to  claim 1 , wherein the connecting assembly comprises a first sealing element configured to seal the liquid reservoir, a surface of the first sealing element facing the liquid reservoir forms a groove, the base is partially located in the groove, a liquid guiding gap is formed between an end surface of the base and an end surface of the groove. 
     
     
         4 . The atomizer according to  claim 2 , wherein an inner diameter of the air conduit is less than the cross-sectional dimension of the inner cavity. 
     
     
         5 . The atomizer according to  claim 1 , wherein the atomizing core further comprises an electrical connector, at least part of the electrical connector is attached to the atomizing surface and is connected to an end of the heater. 
     
     
         6 . The atomizer according to  claim 5 , wherein the electrical connector comprises an electrode and a pin connected to the electrode. 
     
     
         7 . The atomizer according to  claim 5 , wherein at least part of the electrical connector faces the mouthpiece. 
     
     
         8 . The atomizer according to  claim 5 , wherein at least part of the electrical connector extends through the base. 
     
     
         9 . The atomizer according to  claim 5 , wherein an end of the electrical connector penetrates a surface of the base opposite to the atomizing surface. 
     
     
         10 . The atomizer according to  claim 5 , wherein an end of the electrical connector is located on a surface of the base opposite to the atomizing surface. 
     
     
         11 . The atomizer according to  claim 1 , wherein the base is made of porous ceramic. 
     
     
         12 . The atomizer according to  claim 1 , wherein the base has a porosity ranging from 30% to 70%. 
     
     
         13 . The atomizer according to  claim 1 , wherein the base comprises a main body, at least a part of an end surface of the main body is configured to guide the liquid. 
     
     
         14 . The atomizer according to  claim 1 , wherein at least a part of a surface of the base facing towards the mouthpiece is exposed to the liquid reservoir and is configured to absorb the liquid from the liquid reservoir. 
     
     
         15 . The atomizer according to  claim 1 , wherein the base comprises a main body and a protrusion arranged on the main body, the protrusion protrudes from a surface of the main body towards the mouthpiece, and the atomizing surface is arranged on the protrusion. 
     
     
         16 . An electronic atomizing device, comprising a power supply assembly and the atomizer according to  claim 1 , the power supply assembly being connected to the atomizer and at least partially received in the housing. 
     
     
         17 . The electronic atomizing device according to  claim 16 , wherein the power supply assembly comprises a mounting frame and a battery, the mounting frame defines a cavity, the battery is received in the cavity, an air guiding channel isolated from the cavity is formed between the mounting frame and the housing, the mounting frame defines an air inlet on an end surface thereof outside the housing, the air guiding channel is in fluid communication with the air inlet, external air enters the air guiding channel via the air inlet. 
     
     
         18 . The electronic atomizing device according to  claim 16 , wherein the atomizing surface is arranged to face away from the power supply assembly. 
     
     
         19 . The electronic atomizing device according to  claim 17 , wherein the mounting frame comprises opposite first and second surfaces, the cavity is formed on the first surface, a recess is formed on the second surface, the housing covers the recess to form the air guiding channel. 
     
     
         20 . The electronic atomizing device according to  claim 19 , wherein atomizer further comprises an air suction channel, and the external air entering from the air inlet goes into the air suction channel via the air guiding channel.