Heating core assembly and air heating atomization device

Abstract

Disclosed are a heating core assembly and an air heating atomization device. The heating core assembly includes a preheating passage, a tobacco pot, a heating element and a filter assembly. The tobacco pot is divided into a first pot body and a second pot body. The second pot body is communicated with the preheating passage. The heating element is arranged in the preheating passage. The filter assembly is removably installed in the second pot body and can be pushed into the second pot body again through the first pot body after being removed. During smoking, external air flow enters the preheating passage, and then the preheating passage discharges hot air to the second pot body, such that heat is uniformly sent into the first pot body to evaporate substance to be evaporated after passing through the filter assembly. Such design can improve air preheating efficiency while ensuring convenient cleaning.

1 . A heating core assembly which is arranged in a smoke cleaning air passage of an air heating atomization device, wherein, the heating core assembly comprises a preheating passage, a tobacco pot penetrating along an extension direction of the smoke cleaning air passage and participating in a construction of the smoke cleaning air passage, a heating element and a filter assembly;
 wherein the tobacco pot is divided into a first pot body for containing substance to be evaporated and a second pot body for containing the filter assembly, along the extension direction of the smoke cleaning air passage; wherein the second pot body is communicated with the preheating passage, the heating element is arranged in the preheating passage and operable to heat air in the preheating passage;   wherein the filter assembly is removably installed in the second pot body and can be pushed into the second pot body again through the first pot body after being removed from the second pot body;   wherein during smoking, an external air flow enters the preheating passage, and then the preheating passage discharges hot air to the second pot body, such that heat is uniformly sent into the first pot body to evaporate the substance to be evaporated after passing through the filter assembly.   
     
     
         2 . The heating core assembly according to  claim 1 , wherein the heating core assembly also comprises an internally hollow tobacco pot bottom cover, wherein the second pot body is divided into a filter installation part and a heating installation part along the extension direction of the smoke cleaning air passage;
 wherein the filter installation part is connected with the first pot body, and the heating installation part is formed by reducing its diameter relative to a diameter of the filter installation part and extending in a direction away from the first pot body;   wherein the filter assembly is installed in the filter installation part and elastically fastened with the filter installation part in a radial direction, the heating element is sleeved outside the heating installation part;   wherein a top of the tobacco pot bottom cover is connected with the filter installation part, and the heating installation part is located inside the tobacco pot bottom cover, and an annular space between the tobacco pot bottom cover and the heating installation part forms the preheating passage; wherein a bottom of the tobacco pot bottom cover is connected with a ventilation pipe for introducing the external air flow into the preheating passage, and the filter installation part is provided with a plurality of air flow holes communicating the preheating passage and an interior of the filter installation part.   
     
     
         3 . The heating core assembly according to  claim 2 , wherein all the air flow holes are uniformly distributed around the heating installation part, and the air flow hole extends in parallel to an axial direction of the filter installation part. 
     
     
         4 . The heating core assembly according to  claim 2 , wherein the filter assembly also extends into the heating installation part and is hermetically connected with the heating installation part, wherein the ventilation pipe and the heating installation part are arranged opposite to each other along the extension direction of the smoke cleaning air passage. 
     
     
         5 . The heating core assembly according to  claim 4 , wherein the filter assembly comprises a filter base, a spring needle and a filter screen arranged in the filter base; 
 wherein a bottom of the filter base having a reduced diameter extends in the direction away from the first pot body to form a sealing part, and the bottom of the filter base is provided with a plurality of filter holes in a meshy shape, the filter screen is arranged in the filter base, the spring needle is arranged between the filter screen and the bottom of the filter base, two ends of the spring needle pass through the filter installation part along the radial direction, the filter base is sleeved in the filter installation part, and an inner wall of the filter installation part is provided with a groove, wherein the spring needle extends into the groove of the filter installation part after passing through the filter base to realize an elastically fastened connection between the filter assembly and the filter installation part in the radial direction;   wherein the sealing part extends into the heating installation part and is hermetically connected with the heating installation part at a bottom position of the heating installation part.   
     
     
         6 . The heating core assembly according to  claim 5 , wherein the filter installation part comprises an installation cavity matched with a shape of the filter base and an air flow mixing cavity with a diameter gradually reduced along a direction away from the installation cavity; wherein the filter base is elastically fastened in the installation cavity, and the air flow mixing cavity is communicated with all the air flow holes so that the hot air from the preheating passage mixes uniformly and then flows to the filter base. 
     
     
         7 . The heating core assembly according to  claim 2 , wherein the tobacco pot bottom cover has a cylindrical shape, the top of the tobacco pot bottom cover is opened and sleeved outside the filter installation part, the bottom of the tobacco pot bottom cover is provided with an air inlet at its center, wherein a ventilation connection pipe is formed along an edge of the air inlet and extended in a direction away from the second pot body, and the ventilation connection pipe is connected with a top of the ventilation pipe. 
     
     
         8 . The heating core assembly according to  claim 7 , wherein the heating core assembly also comprises a heat insulation sleeve sleeved outside the tobacco pot and the tobacco pot bottom cover, and the top of the ventilation pipe passes through a bottom of the heat insulation sleeve and then is sleeved in the ventilation connection pipe; 
 wherein the heating core assembly also comprises an insulation ceramic sheet, which is arranged in the tobacco pot and attached to a bottom of the tobacco pot, wherein a center of the insulation ceramic sheet is provided with a through hole which is directly opposite to the air inlet.   
     
     
         9 . The heating core assembly according to  claim 8 , wherein a heat insulation support is also arranged at the bottom of the heat insulation sleeve, and a heat insulation material is filled between the heat insulation sleeve, the tobacco pot and the tobacco pot bottom cover. 
     
     
         10 . The heating core assembly according to  claim 1 , wherein the material of the tobacco pot is metal or ceramic. 
     
     
         11 . An air heating atomization device comprising a shell, a suction nozzle arranged on the shell, a smoke cleaning air passage, and a heating core assembly arranged in the smoke cleaning air passage;
 wherein the heating core assembly comprises a preheating passage, a tobacco pot penetrating along an extension direction of the smoke cleaning air passage and participating in a construction of the smoke cleaning air passage, a heating element and a filter assembly;   wherein the tobacco pot is divided into a first pot body for containing substance to be evaporated and a second pot body for containing the filter assembly, along the extension direction of the smoke cleaning air passage; wherein the second pot body is communicated with the preheating passage, the heating element is arranged in the preheating passage and operable to heat air in the preheating passage;   wherein the filter assembly is removably installed in the second pot body and can be pushed into the second pot body again through the first pot body after being removed from the second pot body;   wherein during smoking, an external air flow enters the preheating passage, and then the preheating passage discharges hot air to the second pot body, such that heat is uniformly sent into the first pot body to evaporate the substance to be evaporated after passing through the filter assembly.   
     
     
         12 . The air heating atomization device according to  claim 11 , wherein the heating core assembly also comprises an internally hollow tobacco pot bottom cover, wherein the second pot body is divided into a filter installation part and a heating installation part along the extension direction of the smoke cleaning air passage;
 wherein the filter installation part is connected with the first pot body, and the heating installation part is formed by reducing its diameter relative to a diameter of the filter installation part and extending in a direction away from the first pot body;   wherein the filter assembly is installed in the filter installation part and elastically fastened with the filter installation part in a radial direction, the heating element is sleeved outside the heating installation part;   wherein a top of the tobacco pot bottom cover is connected with the filter installation part, and the heating installation part is located inside the tobacco pot bottom cover, and an annular space between the tobacco pot bottom cover and the heating installation part forms the preheating passage; wherein a bottom of the tobacco pot bottom cover is connected with a ventilation pipe for introducing the external air flow into the preheating passage, and the filter installation part is provided with a plurality of air flow holes communicating the preheating passage and an interior of the filter installation part.   
     
     
         13 . The air heating atomization device according to  claim 12 , wherein all the air flow holes are uniformly distributed around the heating installation part, and the air flow hole extends in parallel to an axial direction of the filter installation part. 
     
     
         14 . The air heating atomization device according to  claim 12 , wherein the filter assembly also extends into the heating installation part and is hermetically connected with the heating installation part, and the ventilation pipe and the heating installation part are arranged opposite to each other along the extension direction of the smoke cleaning air passage. 
     
     
         15 . The air heating atomization device according to  claim 14 , wherein the filter assembly comprises a filter base, a spring needle and a filter screen arranged in the filter base;
 wherein a bottom of the filter base having a reduced diameter extends in the direction away from the first pot body to form a sealing part, and the bottom of the filter base is provided with a plurality of filter holes in a meshy shape, the filter screen is arranged in the filter base, the spring needle is arranged between the filter screen and the bottom of the filter base, two ends of the spring needle pass through the filter installation part along the radial direction, the filter base is sleeved in the filter installation part, and an inner wall of the filter installation part is provided with a groove, wherein the spring needle extends into the groove of the filter installation part after passing through the filter base to realize an elastically fastened connection between the filter assembly and the filter installation part in the radial direction;   wherein the sealing part extends into the heating installation part and is hermetically connected with the heating installation part at a bottom position of the heating installation part.   
     
     
         16 . The air heating atomization device according to  claim 15 , wherein the filter installation part comprises an installation cavity matched with a shape of the filter base and an air flow mixing cavity with a diameter gradually reduced along a direction away from the installation cavity; wherein the filter base is elastically fastened in the installation cavity, and the air flow mixing cavity is communicated with all the air flow holes so that the hot air from the preheating passage mixes uniformly and then flows to the filter base. 
     
     
         17 . The air heating atomization device according to  claim 12 , wherein the tobacco pot bottom cover has a cylindrical shape, the top of the tobacco pot bottom cover is opened and sleeved outside the filter installation part, the bottom of the tobacco pot bottom cover is provided with an air inlet at its center, wherein a ventilation connection pipe is formed along an edge of the air inlet and extended in a direction away from the second pot body, and the ventilation connection pipe is connected with a top of the ventilation pipe. 
     
     
         18 . The air heating atomization device according to  claim 17 , wherein the heating core assembly also comprises a heat insulation sleeve sleeved outside the tobacco pot and the tobacco pot bottom cover, and the top of the ventilation pipe passes through a bottom of the heat insulation sleeve and then is sleeved in the ventilation connection pipe; 
 wherein the heating core assembly also comprises an insulation ceramic sheet, which is arranged in the tobacco pot and attached to a bottom of the tobacco pot, wherein a center of the insulation ceramic sheet is provided with a through hole which is directly opposite to the air inlet.   
     
     
         19 . The air heating atomization device according to  claim 18 , wherein a heat insulation support is also arranged at the bottom of the heat insulation sleeve, and a heat insulation material is filled between the heat insulation sleeve, the tobacco pot and the tobacco pot bottom cover. 
     
     
         20 . The air heating atomization device according to  claim 11 , wherein the material of the tobacco pot is metal or ceramic.