AEROSOL-GENERATING DEVICE FOR GENERATING AEROSOL BY INDUCTION HEATING OF AEROSOL-FORMING SUBSTRATE AND METHOD OF PRODUCING AEROSOL-GENERATING DEVICE FLOW CONCENTRATOR MULTILAYER FOIL Russian patent published in 2025 - IPC A24F40/465 

FIELD: smoking accessories.

SUBSTANCE: group of inventions relates to aerosol-generating devices. Device comprises a housing comprising a cavity configured to receive an aerosol-forming substrate to be heated, induction heating structure containing at least one inductance coil for generation of variable magnetic field inside cavity, flux concentrator. Inductance coil is located around at least a portion of the cavity. Flux concentrator is located around at least a section of the inductance coil and is configured to distort the varying magnetic field of at least one induction heating structure in the direction of the cavity during use of the device. Flow concentrator comprises a multilayer foil having at least one magnetic layer forming a layered structure with at least the first support layer and containing a plurality of separate fragments from a soft magnetic alloy. Plurality of separate fragments are arranged in the form of a pattern containing a plurality of cracking centres, wherein plurality of cracks extends radially outward from each centre of cracking in form of cobweb-like pattern.

EFFECT: providing reliability, compactness of the flow concentrator, ease of manufacture, reduced heating, more efficient use of energy for heating the substrate.

15 cl, 18 dwg