This invention discloses a heated tobacco cooling unit with enhanced
thermal conductivity and a heated
tobacco product, comprising a carrier sheet, several
metal foils, and several
phase change cooling materials. The carrier sheet has several perforated holes. Several
metal foils are disposed on at least one side of the carrier sheet and cover the perforated holes. The
metal foils are spaced apart and discretely arranged. The
phase change cooling materials are filled within the perforated holes using the metal foils as a carrier. The carrier sheet containing the metal foils and
phase change cooling materials is formed into the heated tobacco cooling unit by at least one of the following methods: winding, folding, gathering, bending, and pleating. The metal foils are regularly and intermittently distributed along the longitudinal direction of the tobacco strip. The cooling unit has multiple longitudinally extending channels, and the
porosity of the cross-section is 40%-90%. The heated tobacco cooling unit with enhanced
thermal conductivity of this invention has the advantages of high
latent heat of phase change, low
thermal hysteresis effect,
high heat absorption efficiency, apparent stability without collapse, and no leakage.