An e-vapor device may include a pre-vapor sector and a heater structure arranged in thermal contact with the pre-vapor sector. The pre-vapor sector is configured to hold and dispense a pre-vapor formulation. The heater structure includes a base wire and a shell layer coating the base wire. The base wire is insulated from the shell layer. The shell layer includes at least one recessed portion between a first unrecessed portion and a second unrecessed portion. The at least one recessed portion is a thinner section of the shell layer that is configured to vaporize the pre-vapor formulation to generate a vapor. As a result of the heater design, the heater structure is stiffer and more robust than other related heaters in the art, thus allowing more options for its implementation.

An e-vapor device may include a pre-vapor sector and a heater structure arranged in thermal contact with the pre-vapor sector. The pre-vapor sector is configured to hold and dispense a pre-vapor formulation. The heater structure includes a base wire and a shell layer coating the base wire. The base wire is insulated from the shell layer. The shell layer includes at least one recessed portion between a first unrecessed portion and a second unrecessed portion. The at least one recessed portion is a thinner section of the shell layer that is configured to vaporize the pre-vapor formulation to generate a vapor. As a result of the heater design, the heater structure is stiffer and more robust than other related heaters in the art, thus allowing more options for its implementation.

The invention relates to a special electrode arrangement for the targeted ohmic heating of different products, media or structures that are electrically conductive or contain electrically conductive constituents and have an inorganic or organic basis, including products of plant or animal origin, consisting of at least one electrode group comprising a plurality of individual electrodes. According to the invention, the individual electrodes are arranged at a distance apart from one another in an insulating carrier and, with the exception of an electrode surface region, are insulated from the product to be treated or the structure to be treated.

The invention relates to a special electrode arrangement for the targeted ohmic heating of different products, media or structures that are electrically conductive or contain electrically conductive constituents and have an inorganic or organic basis, including products of plant or animal origin, consisting of at least one electrode group comprising a plurality of individual electrodes. According to the invention, the individual electrodes are arranged at a distance apart from one another in an insulating carrier and, with the exception of an electrode surface region, are insulated from the product to be treated or the structure to be treated.

A heating system includes at least one electric heater disposed within a fluid flow system and a control device that is configured to determine a temperature of the at least one electric heater based on a model, at least one fluid flow system input, and at least one heater input. The at least one heater input includes at least one physical characteristic of the heating system, the at least one physical characteristic includes at least one of a resistance wire diameter, a heater insulation thickness, a heater sheath thickness, a conductivity, a specific heat and density of the material of the heater, an emissivity of the heater and the fluid flow pathway, and combinations thereof. The control device is configured to provide power to the at least one electric heater based on the temperature of the at least one electric heater.

A heating system includes at least one electric heater disposed within a fluid flow system and a control device that is configured to determine a temperature of the at least one electric heater based on a model, at least one fluid flow system input, and at least one heater input. The at least one heater input includes at least one physical characteristic of the heating system, the at least one physical characteristic includes at least one of a resistance wire diameter, a heater insulation thickness, a heater sheath thickness, a conductivity, a specific heat and density of the material of the heater, an emissivity of the heater and the fluid flow pathway, and combinations thereof. The control device is configured to provide power to the at least one electric heater based on the temperature of the at least one electric heater.

A heater assembly comprises a container including a cylindrical portion that forms a chamber in which a flavor generating article is contained, and a heater arranged in a peripheral surface of the cylindrical portion. The container includes a first channel extending along a longitudinal direction of the cylindrical portion and located adjacently to the chamber in a direction intersecting with the longitudinal direction of the cylindrical portion, and a second channel extending through the chamber along the longitudinal direction of the cylindrical portion. The first channel is in communication with the second channel.

The present invention relates to an aerosol generating device, and more particularly, to a complex heating type aerosol generating device that can heat a smoking article having a plurality of aerosol-forming substrates. According to an embodiment of the present invention, there is provided a complex heating type aerosol generating device, which is grippable and portable-sized, for a smoking article having a first aerosol-forming substrate and a second aerosol-forming substrate arranged at the upstream of the first aerosol-forming substrate, the complex heating type aerosol generating device comprising: a cavity provided in the device into which the smoking article can be inserted; a first heating means provided in the device to heat the interior or exterior of the first aerosol-forming substrate of the smoking article within a first temperature range; a second heating means provided in the device to heat the interior or exterior of the second aerosol-forming substrate of the smoking article within a second temperature range; first and second sensors provided in the device to sense the temperatures of the first and second heating means, respectively; a rechargeable battery provided in the device to function as a direct current power source; and a control unit provided in the device and electrically connected to the first and second sensors and the battery, to control the first and second heating means according to the sensed values of the first and second sensors, respectively, by receiving direct current power from the battery.

The present invention relates to an aerosol generating device, and more particularly, to a complex heating type aerosol generating device that can heat a smoking article having a plurality of aerosol-forming substrates. According to an embodiment of the present invention, there is provided a complex heating type aerosol generating device, which is grippable and portable-sized, for a smoking article having a first aerosol-forming substrate and a second aerosol-forming substrate arranged at the upstream of the first aerosol-forming substrate, the complex heating type aerosol generating device comprising: a cavity provided in the device into which the smoking article can be inserted; a first heating means provided in the device to heat the interior or exterior of the first aerosol-forming substrate of the smoking article within a first temperature range; a second heating means provided in the device to heat the interior or exterior of the second aerosol-forming substrate of the smoking article within a second temperature range; first and second sensors provided in the device to sense the temperatures of the first and second heating means, respectively; a rechargeable battery provided in the device to function as a direct current power source; and a control unit provided in the device and electrically connected to the first and second sensors and the battery, to control the first and second heating means according to the sensed values of the first and second sensors, respectively, by receiving direct current power from the battery.

A method of forming a heater assembly of an e-vaping device includes bending a wire to form a first lobe and bending the wire to form a second lobe. The first lobe and the second lobe form a generally sinuously-shaped heater having a first set of lobes and a second set of lobe. A first apex of the first lobe is generally opposite a second apex of the second lobe. The method may also include curling the first set of lobes towards the second set of lobes to form a heater having a substantially tubular form. The heater defines an opening there through.