Aerosol-generating article with heat diffuser

By introducing a thermal diffuser and porous structure into aerosol-forming products, the problem of uneven heating is solved, and uniform heating and stability of the aerosol-forming matrix are achieved, especially in the application of liquid aerosol-forming matrices.

CN115486580BActive Publication Date: 2026-07-14PHILIP MORRIS PRODUCTS SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PHILIP MORRIS PRODUCTS SA
Filing Date
2017-05-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing electrically operated aerosol generation systems, uneven heating of the aerosol forming matrix leads to localized overheating or underheating, making it difficult to maintain consistent aerosol characteristics. Overheating problems are particularly common in liquid aerosol forming matrices.

Method used

The product is generated from an aerosol with a heat diffuser. The heat diffuser is made of a non-combustible porous body. It heats the aerosol matrix through convection heating, uniformly transfers heat, and optimizes the porosity distribution through the design of heat storage and heat conduction materials to improve heating uniformity.

Benefits of technology

Uniform heating of the aerosol formation matrix was achieved, reducing local high-temperature areas, preventing overheating, and improving the stability and consistency of aerosol formation.

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Abstract

There is provided a heated aerosol-generating article (100) for use with an electrically operated aerosol-generating device (200), the article having a mouth end (170) and a distal end (160) upstream of the mouth end. The article comprises a heat diffuser (110) at the distal end of the article, and an aerosol-forming substrate (126) downstream of the heat diffuser. The heat diffuser comprises a non-combustible porous body (112) for absorbing heat from an electric heating element, such that, in use, air drawn through the aerosol-generating article from the distal end to the mouth end is heated by the heat absorbed in the porous body.
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