There is provided a method of controlling aerosol production in an aerosol-generating device, the device comprising: a heater comprising at least one heating element configured to heat an aerosol-forming substrate; and a power source for providing power to the heating element, comprising the steps of: controlling the power provided to the heating element such that in a first phase power is provided such that the temperature of the heating element increases from an initial temperature to a first temperature, in a second phase power is provided such that the temperature of the heating element drops below the first temperature and in a third phase power is provided such that the temperature of the heating element increases again. Increasing the temperature of the heating element during a final phase of the heating process reduces or prevents the reduction in aerosol delivery over time.

There is provided a method of controlling an electrical heating element, including maintaining a temperature of the heating element at a target temperature by supplying pulses of electrical current to the heating element; monitoring a duty cycle of the pulses of electrical current; and determining if the duty cycle differs from an expected duty cycle or range of duty cycles, and if so, reducing the target temperature, or stopping the supply of current to the heating element or limiting the duty cycle of the pulses of electrical current supplied to the heating element. As the temperature is maintained at a known target temperature, any variation in the duty cycle or range of duty cycles expected to maintain the target temperature is indicative of abnormal conditions.

There is provided a method of controlling aerosol production in an aerosol-generating device, the device comprising: a heater comprising at least one heating element configured to heat an aerosol-forming substrate; and a power source for providing power to the heating element, comprising the steps of: controlling the power provided to the heating element such that in a first phase power is provided such that the temperature of the heating element increases from an initial temperature to a first temperature, in a second phase power is provided such that the temperature of the heating element drops below the first temperature and in a third phase power is provided such that the temperature of the heating element increases again. Increasing the temperature of the heating element during a final phase of the heating process reduces or prevents the reduction in aerosol delivery over time.

A generally tubular disposable consumable with a containment end with one or more deformable frangible section opposite an inhalation end also has material to heat without burning or combusting in said containment end. Upon insertion into a heating device such as a heating chamber or receivor the one or more frangible sections of the consumable are deformed or indented. Disclosed herein are inventions for heating without combustion plant material or volatile compounds or oils in disposable consumables such as a cartridge.

An electromagnetic switch includes a base, a first static contact piece, a second static contact piece, a movable contact piece, a movable member and an intermediate driving member; the movable contact piece is electrically connected to the first static contact piece; the movable contact piece comprises an on-off portion capable of moving up and down; the movable member is rotatably connected to the base; the movable member comprises a first action portion; the intermediate driving member allows the on-off portion to move down to contact the second static contact piece or move up to be away from the second static contact piece; the electromagnetic driving assembly includes a coil and a magnetic core; the magnetic core is capable of moving up to push the first action portion up when the coil is electrified.

Provided is a method and device for an electronic cooker to control heat preservation. The method includes: acquiring holding temperature data for a food; predicting serving time point data for the food; acquiring serving temperature data for the food at a time point indicated by the serving time point data; determining time point data of terminating the heat preservation for the food in accordance with the serving time point data, the serving temperature data, and the holding temperature data; and terminating the heat preservation for the food at a time point indicated by the time point data of terminating the heat preservation.

An electronic smoking (1) device comprises a housing (2), control electronics (14) and a puff detector (18). The housing (2) accommodates a battery (10) as an electric power source powering an electrically heatable atomizer (20) comprising an electric heater (22) and adapted to atomize a liquid supplied from a reservoir (6) to provide an aerosol exiting from the atomizer (20). The control electronics (14) controls the heater (22) of the atomizer (20) and is adapted to operate the heater (22) in at least two predetermined modes. The puff detector (18) indicates an aerosol inhaling puff to the control electronics (14). The control electronics (14) selects a specific mode for operating the heater (22) via a control signal initiated by the puff detector (18).

A disposable consumable with tobacco, hemp and/or cannabis therein is heated in a keyed receivor allowing conduction and convection. The consumable when inserted into a heating chamber via a keyed receivor will have one or more linear sections running axially that are in direct contact with the inner wall of the heating chamber and one or more linear sections that are remote from the inner wall with a volume of air between the cartridge and inner wall. Direct contact sections are heated via conduction through the heating chamber wall and the heated air volume forms a convection airflow for inhalation.

The present invention is directed to an autonomously powered vapor dispensing device comprising an intermediate basin which allows the volatile liquid contained therein to impregnate a dispensing material by capillarity and dispense into the atmosphere; and a heating element which heats the intermediate basin comprising the volatile liquid to force evaporation cyclically of the volatile liquid directly from the intermediate basin.

A disposable consumable with tobacco, hemp and/or cannabis therein is heated in a receivor allowing conduction and convection. The consumable when inserted into a heating chamber via a receivor and a spacer formed on the consumable separates a portion of the consumable from the receivor wall forming one or more regions of air. In some instances slots or uneven portions of the spacer form air passageways with in the receivor between the consumable and the receivor inner wall.