Vaporizer Including Positive Temperature Coefficient of Resistivity (PTCR) Heating Element

Abstract

An apparatus includes a housing including a power source; a reservoir including an inlet, an outlet, and configured to contain vaporizable material and couple to the housing; and a PTCR heating element configured to electrically couple to the power source and heat the vaporizable material to form an aerosol. The PTCR heating element includes an electrical resistivity that varies based on temperature. The electrical resistivity includes an electrical resistivity transition zone including an increase in electrical resistivity over a temperature range such that, when the PTCR heating element is heated to a first temperature within the transition zone, current flow from the power source is reduced to a level that limits further temperature increases of the PTCR heating element. Related apparatus, systems, techniques, and articles are also described.

Description

[0001] cross reference [0002] This application claims U.S. Application No. 16 / 566,842, filed September 10, 2019, entitled "Vaporizer Including PositiveTemperature Coefficient of Resistivity (PTCR) Heating Element," which claims application filed September 12, 2018, entitled " Vaporizer Including PositiveTemperature Coefficient of Resistivity Heater,” and claims priority to U.S. Provisional Patent Application No. 62 / 730,257, filed September 6, 2019, entitled “Vaporizer Including (PTCR) PositiveTemperature Coefficient of Resistivity Heater” Priority to Patent Application No. 62 / 897,299, the entire contents of which are incorporated herein by reference. technical field [0003] The subject matter described herein relates to vaporizer devices, such as portable personal vaporizer devices for generating an inhalable aerosol from one or more vaporizable materials, and the portable personal vaporizer devices include a PTCR heating elements of semiconductor materials with temperatur...

AI Technical Summary

Problems solved by technology

This reduces the efficiency of the wick in lifting the vaporizable material into the vaporization chamber, thereby reducing the efficiency of the vaporizing device to vaporize the required amount of vaporizable material

Furthermore, the vacuum created in the reservoir can eventually result in not all of the vaporizable material being lifted into the vaporization chamber, thus wasting the vaporizable material

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