Induction heating assembly for an aerosol generating device and a method of manufacturing the same

An induction heating assembly for an aerosol generating device, the induction heating assembly comprising a heating chamber for receiving, in use, an aerosol generating article inside the heating chamber, and an induction coil assembly substantially surrounding the heating chamber, the induction coil assembly comprising an electrically conductive track, wherein at least part of the electrically conductive track overlaps with another part of the electrically conductive track in an axial direction, wherein the induction coil assembly comprises an electrically insulating layer that is located at least between the overlapping parts of the electrically conductive track, wherein the entire induction coil assembly winds around the heating chamber at a continuously increasing distance from a central axis of the induction coil assembly such that the electrically insulating layer is interposed between adjacent turns of the electrically conductive track.

A method of manufacturing an induction heating assembly for an aerosol generating device, the induction heating assembly comprising a heating chamber for receiving, in use, an aerosol generating article inside the heating chamber, and an induction coil assembly substantially surrounding the heating chamber, the method comprising the steps of:

• forming or positioning an induction coil assembly substantially around the heating chamber, the induction coil assembly comprising an electrically insulating layer and an electrically conductive track, wherein the induction coil assembly has a substantially tubular construction and wherein at least part of the induction coil assembly overlaps with another part of the induction coil assembly in an axial direction,
• wherein the step of forming or positioning the induction coil assembly comprises winding the electrically insulating layer and the electrically conductive track around the heating chamber at a continuously increasing distance from a central axis of the induction coil assembly, wherein the induction coil assembly has a spiral construction such that the electrically insulating layer is interposed between adjacent turns of the electrically conductive track.