Smoking system and tobacco product thereof

Abstract

A tobacco product comprising a mouthpiece and a cigarette stem. One extremity of the cigarette stem is connected to the mouthpiece. The cigarette stem has multiple tobacco segments connected in series. The tobacco segments include a tobacco material and a phase changing material. The phase changing material is provided in the tobacco material.

1 . A smoking article, comprising:
 a mouthpiece, and   a cigarette rod, one end of the cigarette rod being connected to the mouthpiece, the cigarette rod comprising a plurality of tobacco segments connected sequentially, the tobacco segment comprising a tobacco material and a phase change material disposed in the tobacco material.   
     
     
         2 . The smoking article of  claim 1 , wherein the phase change material is a solid-solid phase change material or a solid-liquid phase change material. 
     
     
         3 . The smoking article of  claim 1 , further comprising a receptacle accommodating the phase change material, the phase change material being a solid-liquid phase change material and located in the receptacle, and the receptacle being made of a heat conductive material having a melting point greater than or equal to 500° C. 
     
     
         4 . The smoking article of  claim 3 , wherein the receptacle is made of aluminum foil. 
     
     
         5 . The smoking article of  claim 3 , wherein a plurality of receptacles are uniformly distributed in the tobacco material of each of the tobacco segments. 
     
     
         6 . The smoking article of  claim 3 , wherein the receptacle is made of a heat conductive material having a melting point greater than or equal to 500° C. 
     
     
         7 . The smoking article of  claim 1 , wherein the phase change material has a solid-liquid phase change temperature of 200° C. to 500° C. 
     
     
         8 . The smoking article of  claim 7 , wherein the phase change material has a solid-liquid phase change temperature of 240° C. to 350° C. 
     
     
         9 . The smoking article of  claim 1 , wherein constituents of the tobacco materials in the plurality of tobacco segments are different. 
     
     
         10 . The smoking article of  claim 9 , wherein a proportion of a tobacco constituent contained in the tobacco material in the plurality of tobacco segments capable of producing a smoke constituent having a lower decomposition temperature gradually decreases in a direction from one end of the cigarette rod adjacent to the mouthpiece towards the other end thereof away from the mouthpiece. 
     
     
         11 . The smoking article of  claim 1 , further comprising a heat insulation layer located between two adjacent tobacco segments. 
     
     
         12 . The smoking article of  claim 11 , wherein the heat insulation layer is further located between the mouthpiece and the tobacco segment connected to the mouthpiece. 
     
     
         13 . The smoking article of  claim 1 , wherein the mouthpiece is a filter. 
     
     
         14 . The smoking article of  claim 1 , wherein the phase change material is sodium nitrate. 
     
     
         15 . The smoking article of  claim 1 , wherein the phase change material is in a form of particle or filament. 
     
     
         16 . A smoking system, comprising:
 a smoking device comprising a heating pot, the heating pot comprising a plurality of heating elements connected sequentially, each of the heating elements being provided with a heating chamber, the heating chambers of the plurality of heating elements forming an accommodating chamber configured to accommodate a smoking article, the plurality of heating elements independently controlling temperature and heating sequentially in a direction from an insertion opening, towards an air inlet hole; and   a smoking article, the smoking article comprising:   a mouthpiece, and   a cigarette rod, one end of the cigarette rod being connected to the mouthpiece, the cigarette rod comprising a plurality of tobacco segments connected sequentially, the tobacco segment comprising a tobacco material and a phase change material disposed in the tobacco material;   wherein the cigarette rod is inserted into the accommodating chamber, and the plurality of tobacco segments are in one-to-one correspondence with the plurality of heating elements.