Overheating protection device for electronic cigarette and smoke cartridge

Abstract

An overheating protection device for an electronic cigarette includes a battery for powering the electronic cigarette, an atomizer for vaporizing a tobacco flavored liquid by heating, and a control circuit module for controlling the atomizer to work. The battery, the control circuit module, and the atomizer are electrically connected one by one to define a heating circuit. The overheating protection device further includes a thermal fuse connected in series in the heating circuit. When environment temperature is overheat, the thermal fuse automatically blows to cut off the heating circuit, and the battery stops powering the atomizer. The overheating protection device is safe for smoker and the electronic cigarette.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 201320128663.2 filed in P.R. China on Mar. 20, 2013, the entire contents of which are hereby incorporated by reference.BACKGROUND[0002]1. Technical Field[0003]The present disclosure relates to an electronic cigarette, and particularly, to an overheating protection device for electronic cigarette and smoke cartridge.[0004]2. Description of Related Art[0005]The existing electronic cigarette products, especially disposable electronic cigarettes and disposable smoke cartridges, are not provided with overheating protection. The electronic cigarette includes a heating circuit cooperatively formed by a battery, a control circuit module and an atomizer. When the electronic cigarette breaks down, such as a microcontroller crashed or a wire short circuit, the battery may be run out or the electronic cigarette may be burned out due to sustained heating...

AI Technical Summary

Benefits of technology

The present invention is an overheating protection device for electronic cigarettes and smoke cartridges. It prevents the smoker from getting scalded or burned due to high temperatures in the device. It includes a thermal fuse that prevents the atomizer from overheating. The thermal fuse is connected to the atomizer and when the temperature reaches the blown temperature, the fuse will shut off power supply to the battery, improving safety.

Problems solved by technology

The existing electronic cigarette products, especially disposable electronic cigarettes and disposable smoke cartridges, are not provided with overheating protection.

When the electronic cigarette breaks down, such as a microcontroller crashed or a wire short circuit, the battery may be run out or the electronic cigarette may be burned out due to sustained heating of the atomizer.

In addition, the electronic cigarette may cause a scald, burns or even a fire because of a high temperature therein.

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