A control system for controlling an operation of a resistive heater includes a dielectric parameter determination module for determining a dielectric parameter of the resistive heater when the resistive heater is in an active mode, and a diagnostic module for diagnosing performance of the resistive heater based on the dielectric parameter.

The present disclosure is directed toward a control system for controlling a heater system. The control system includes a plurality of zone control circuits, at least two auxiliary controllers, and a primary controller. The zone control circuits are operable to provide power to a plurality of heater zones of the heater system and to sense performance characteristics of the zones. The auxiliary controllers are coupled to the plurality of zone control circuits to control power to the plurality of zones and to monitor operation of the heater zones based on the performance characteristics. The primary controller is coupled to the auxiliary controllers and is configured to provide an operation set-point for each of the heater zones based on the performance characteristics. The auxiliary controllers operate the zone control circuits to supply power to the heater system based on the operation set-point.

The present application is disclosed an atomizing component and an electronic cigarette. The atomizing component comprises a light-permeable e-liquid storage sleeve. An atomizing core is detachably connected to an end of the e-liquid storage sleeve. A fastening element for restricting radial expansion of the e-liquid storage sleeve is sleeved at where the e-liquid storage sleeve is insertedly connected to the atomizing core. An end of a ventilation pipe opposite to the atomizing core is a smoke emitting outlet in communication with a suction nozzle. An e-liquid filler hole is extended from the end of the ventilation pipe provided with the smoke emitting outlet. The smoke emitting outlet and the e-liquid filler hole are located on planes of different heights; while e-liquid is being added, the outer circumferential wall of the ventilation pipe blocks the e-liquid splashed accidentally, thus preventing the e-liquid from being splashed into the ventilation pipe.

An electronic cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An atomizer and a liquid-supply are in contact with each other. The air inlet, atomizer, and an aerosol passage are interconnected.

An electric heater (100) with an axial opening (131) for receiving an object to be heated, with an electric heating element (130) surrounding the axial opening (131) in at least in some sections and with an essentially cylindrical or essentially frustoconical clamping jacket (110) surrounding the electric heating element (13) at least in the radial direction for generating an adjustable force acting radially in the direction of an axis (A) of the axial opening (131). The clamping jacket (110) is a multipart clamping jacket and has at least one pressing segment (113, 114) for introducing the force acting radially in the direction of an axis (A) of the axial opening (131) as well as at least one clamping segment (111, 112), with which the width of the gap (119a, 119b) between adjacent edges of oppressing segments (113, 114) can be varied for adjusting the force acting radially in the direction of an axis (A) of the axial opening (131) by moving the clamping segment (111, 112) relative to the pressing segment (113, 114).

An electric heater (100) with an axial opening (131) for receiving an object to be heated, with an electric heating element (130) surrounding the axial opening (131) in at least in some sections and with an essentially cylindrical or essentially frustoconical clamping jacket (110) surrounding the electric heating element (13) at least in the radial direction for generating an adjustable force acting radially in the direction of an axis (A) of the axial opening (131). The clamping jacket (110) is a multipart clamping jacket and has at least one pressing segment (113, 114) for introducing the force acting radially in the direction of an axis (A) of the axial opening (131) as well as at least one clamping segment (111, 112), with which the width of the gap (119a, 119b) between adjacent edges of oppressing segments (113, 114) can be varied for adjusting the force acting radially in the direction of an axis (A) of the axial opening (131) by moving the clamping segment (111, 112) relative to the pressing segment (113, 114).

An electric heating cable is provided with dual heaters, including first and second heating cables encased in at least one polymer jacket. The first heating cable generates thermal energy to heat an object in contact with the exterior surface of the dual-heater cable, and the second heating cable is positioned to pre-heat the first heating cable in order to reduce or eliminate inrush current in the first heating cable when the first heating cable is energized. The first heating cable can be a self-regulating heating cable, and can have a core of positive temperature coefficient (PTC) material encapsulating two bus wires. The second heating cable can be a constant-wattage heating cable disposed between the bus wires; the PTC material can form a channel in which the second heating cable is disposed. Control circuitry energizes the second heating cable for a pre-heating time before energizing the first heating cable.

An electronic cigarette includes a battery assembly, an atomizer assembly and a cigarette bottle assembly. An external thread electrode is located in one end of battery assembly. An internal thread electrode is located in one end of atomizer assembly. The battery assembly and the atomizer assembly are connected by the screwthread electrode. The cigarette bottle assembly is inserted into the other end of the atomizer assembly and both form a cigarette type or cigar type body.

An electronic cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An atomizer and a liquid-supply are in contact with each other. The air inlet, atomizer, an aerosol passage, and a mouthpiece are sequentially interconnected.

An apparatus comprising a heater configured to heat smokeable material to volatilize at least one component of the smokeable material, wherein the heater is elongate and comprises a plurality of independently controllable heating regions arranged sequentially along a longitudinal axis of the heater.