Electronic cigarette

摘要

An electronic cigarette includes a liquid supply including liquid material, a heater operable to heat the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol, a wick in communication with the liquid material and in communication with the heater such that the wick delivers the liquid material to the heater, at least one air inlet operable to deliver air to a central air passage upstream of the heater, and a mouth end insert having at least two diverging outlets. The electronic cigarette can also include an air flow diverter which directs incoming air away from a heating zone of the heater.

主权项

1. An electronic vaping device comprising:
a liquid supply including a liquid material; a heater configured to vaporize the liquid material to produce a vapor; a mouth-end insert including at least two diverging outlets which are located at an end of off-axis passages; an air flow diverter configured to prevent incoming air from reducing vapor output due to cooling of the heater during puff cycles, the air flow diverter at least partially disposed about the heater; an outer cylindrical tube extending in a longitudinal direction; an inner cylindrical tube within the outer cylindrical tube; a central air passage in communication with an upstream end of the inner cylindrical tube; the liquid supply contained in an outer annulus between the outer cylindrical tube and the inner cylindrical tube; the heater located in the inner cylindrical tube downstream of and spaced apart in relation to the central air passage; a wick in communication with the liquid supply and in communication with the heater such that the wick delivers the liquid material to the heater and the heater is configured to heat the liquid material to a temperature sufficient to vaporize the liquid material and form the vapor in the inner cylindrical tube; a power supply configured to apply a voltage across the heater; and at least one air inlet configured to deliver air drawn into the central air passage by a puff on the electronic vaping device; wherein the air flow diverter is configured to divert at least some air flow away from a portion of the heater; wherein the air flow diverter comprises an impervious plug at a downstream end of the central air passage, the impervious plug positioned in the central air passage defined by a seal, the air flow diverter further comprising at least one radial air channel extending from an upstream end of the central air passage to an outer longitudinal air passage, the outer longitudinal air passage at least partially surrounding the downstream end of the central air passage, the air flow diverter configured to direct air flow away from the portion of the heater.