A method of manufacturing an aerosol provision apparatus for heating smokable material to volatilize at least one component of the smokable material, and an aerosol provision apparatus, are described. The method includes providing a heater arrangement for heating smokable material contained in use within the apparatus, the heater arrangement including at least a first heating zone and a second heating zone for heating different portions of the smokable material, providing a temperature sensor for each of the first and second heating zones, each temperature sensor for providing temperature measurements to be used as input temperature measurements for a temperature control loop, the control loop for controlling the heater arrangement to heat its associated respective heating zone to a target temperature based on the input temperature measurements acquired by the associated temperature sensor, and positioning each temperature sensor in its associated heating zone at a respective position selected so that if the heating arrangement were to heat the first and second heating zones so that the temperature sensors measure the same pre-selected target temperature, a temperature gradient across the length of the heating zones between the temperature sensors would be optimized as being substantially flat.

A method of manufacturing an aerosol provision apparatus for heating smokable material to volatilize at least one component of the smokable material, and an aerosol provision apparatus, are described. The method includes providing a heater arrangement for heating smokable material contained in use within the apparatus, the heater arrangement including at least a first heating zone and a second heating zone for heating different portions of the smokable material, providing a temperature sensor for each of the first and second heating zones, each temperature sensor for providing temperature measurements to be used as input temperature measurements for a temperature control loop, the control loop for controlling the heater arrangement to heat its associated respective heating zone to a target temperature based on the input temperature measurements acquired by the associated temperature sensor, and positioning each temperature sensor in its associated heating zone at a respective position selected so that if the heating arrangement were to heat the first and second heating zones so that the temperature sensors measure the same pre-selected target temperature, a temperature gradient across the length of the heating zones between the temperature sensors would be optimized as being substantially flat.

A cartridge for an aerosol-generating system is provided, including a liquid storage portion including a housing containing a liquid aerosol-forming substrate, the housing having an open end; and a heater assembly including: an electrical heating element configured to heat the substrate to form an aerosol, the heating element including a planar filament arrangement having one or more electrically conductive filaments, an electrically insulating substrate having a planar attachment face, the filament arrangement disposed on the planar attachment face, and clamping elements mechanically fixing the filament arrangement to the electrically insulating substrate and applying a pulling force onto the filament arrangement, at least a portion of the heater assembly being fluid-permeable, and the heater assembly being arranged over the open end of the housing.

A cartridge for an aerosol-generating system is provided, including a liquid storage portion including a housing containing a liquid aerosol-forming substrate, the housing having an open end; and a heater assembly including: an electrical heating element configured to heat the substrate to form an aerosol, the heating element including a planar filament arrangement having one or more electrically conductive filaments, an electrically insulating substrate having a planar attachment face, the filament arrangement disposed on the planar attachment face, and clamping elements mechanically fixing the filament arrangement to the electrically insulating substrate and applying a pulling force onto the filament arrangement, at least a portion of the heater assembly being fluid-permeable, and the heater assembly being arranged over the open end of the housing.

A heating assembly includes: a lower base, an upper part of the lower base being provided with two supporting parts oppositely arranged; a heating element including a heating part and electrode parts, and the heating part is made of a woven mesh, the electrode parts abut against the supporting parts; an oil-guiding cotton abutting against an upper surface of the heating part; and an upper base fastened to the upper part of the lower base to fix the heating element and the oil-guiding cotton. A manufacturing method of a heating assembly is provided, including: providing a lower base; arranging a heating element on an upper part of the lower base; arranging an oil-guiding cotton on an upper surface of the heating element; and fastening an upper base to the lower base, to fix the oil-guiding cotton and the heating element between the upper base and the lower base.

A heating assembly includes: a lower base, an upper part of the lower base being provided with two supporting parts oppositely arranged; a heating element including a heating part and electrode parts, and the heating part is made of a woven mesh, the electrode parts abut against the supporting parts; an oil-guiding cotton abutting against an upper surface of the heating part; and an upper base fastened to the upper part of the lower base to fix the heating element and the oil-guiding cotton. A manufacturing method of a heating assembly is provided, including: providing a lower base; arranging a heating element on an upper part of the lower base; arranging an oil-guiding cotton on an upper surface of the heating element; and fastening an upper base to the lower base, to fix the oil-guiding cotton and the heating element between the upper base and the lower base.

A frame for an aerosol-generating device is provided, the frame including: a base frame formed from an electrically conductive material; an electrical connector having a plurality of electrical contacts arranged on a connector frame formed from an electrically insulating material, the electrical connector being secured to the base frame such that the base frame is electrically connected to at least one of the electrical contacts of the electrical connector; and a support frame formed from an electrically insulating material, in which the base frame and electrical connector are at least partially embedded in the support frame. A method of manufacturing a frame for an aerosol-generating device, and an aerosol-generating device including a frame, are also provided.

A frame for an aerosol-generating device is provided, the frame including: a base frame formed from an electrically conductive material; an electrical connector having a plurality of electrical contacts arranged on a connector frame formed from an electrically insulating material, the electrical connector being secured to the base frame such that the base frame is electrically connected to at least one of the electrical contacts of the electrical connector; and a support frame formed from an electrically insulating material, in which the base frame and electrical connector are at least partially embedded in the support frame. A method of manufacturing a frame for an aerosol-generating device, and an aerosol-generating device including a frame, are also provided.

A heater for a vaporizer with air preheating element includes a casing, a tunnel with a perforated bottom, which is a cylindrical heating chamber for placing a cigarette, a heating element of a resistive type, a heat exchanger, including air channels for circulation and preheating of air by a heater, a top end and a bottom end, an air intake hole made in the top end. Outlet holes are communicated with exits of air channels of the heat exchanger for intake of air preheated by the heater in the tunnel. The casing is made in the form of a tape of a thin-film dielectric heat-resistant material, on which a thin layer of resistive material with contacts is applied on the end of one side, forming the heating element, and on the other side a top and bottom spacers are fixed and inclined toward the middle, as well as the edging, which are made of flexible heat-resistant material. The above mentioned tape with a heating element, located on its external side, is rolled into a cylinder and forms a tunnel, and is additionally coiled into several interconnected spiral coils, and forms a spiral casing with the top and bottom ends so that the top and bottom spacers and the edging located on the inside form a spiral heat exchanger comprising the top and bottom and the middle spiral air ducts for spiral and labyrinth circulation and preheating of air, and at the bottom there is an additional inlet hole for air intake.

A heater for a vaporizer with air preheating element includes a casing, a tunnel with a perforated bottom, which is a cylindrical heating chamber for placing a cigarette, a heating element of a resistive type, a heat exchanger, including air channels for circulation and preheating of air by a heater, a top end and a bottom end, an air intake hole made in the top end. Outlet holes are communicated with exits of air channels of the heat exchanger for intake of air preheated by the heater in the tunnel. The casing is made in the form of a tape of a thin-film dielectric heat-resistant material, on which a thin layer of resistive material with contacts is applied on the end of one side, forming the heating element, and on the other side a top and bottom spacers are fixed and inclined toward the middle, as well as the edging, which are made of flexible heat-resistant material. The above mentioned tape with a heating element, located on its external side, is rolled into a cylinder and forms a tunnel, and is additionally coiled into several interconnected spiral coils, and forms a spiral casing with the top and bottom ends so that the top and bottom spacers and the edging located on the inside form a spiral heat exchanger comprising the top and bottom and the middle spiral air ducts for spiral and labyrinth circulation and preheating of air, and at the bottom there is an additional inlet hole for air intake.