Electronic cigarette

Abstract

An electronic cigarette includes a power supply device, a sensing unit, an atomizer, a liquid storage structure, a fluid transportation device, a casing and a mouthpiece. The atomizer includes an electric heater and a liquid receiving part. The electric heater surrounds the liquid receiving part. The liquid storage structure includes a passageway for allowing an airflow to go through and a liquid container. The electric heater is disposed on a first end of the passageway. A cigarette liquid is stored in the liquid container. The fluid transportation device includes an input channel and an output channel. The input channel is in communication with the liquid container. The output channel is in communication with the liquid receiving part. The cigarette liquid is transferred to the liquid receiving part at a certain amount. Consequently, an atomized vapor is generated. The casing has an entrance. The mouthpiece seals an end of the casing.

Description

FIELD OF THE INVENTION[0001]The present invention relates to an electronic cigarette, and more particularly to an electronic cigarette with a fluid transportation device.BACKGROUND OF THE INVENTION[0002]Nowadays, electronic cigarettes are widely used to replace the conventional tobacco cigarettes. FIG. 1A is a schematic cross-sectional view illustrating a conventional electronic cigarette. FIG. 1B is a schematic cross-sectional view illustrating the structure of an atomizer of the conventional electronic cigarette. As shown in FIGS. 1A and 1B, the electronic cigarette comprises a first casing 1a, a second casing 1b, a power supply device 2, a sensing unit 3, an atomizer 4 and a liquid storage structure 5. The first casing 1a and the second casing 1b are thin-wall metal pipes, e.g., stainless steel pipes. The power supply device 2, the sensing unit 3, the atomizer 4 and the liquid storage structure 5 are disposed within the first casing 1a and the second casing 1b. After the first ca...

AI Technical Summary

Benefits of technology

The invention provides an electronic cigarette which has a controllable switch element that precisely controls the amount of cigarette liquid transferred to the atomizer, improving the taste of the vapor and solving liquid leakage issues. Additionally, the electronic cigarette has an airflow sensor that detects air pressure, allowing for quick inhalation of atomized vapor by adjusting the speed of atomizing and providing the cigarette liquid based on the detection signal.

Problems solved by technology

However, this design has some drawbacks.

Since it is difficult to precisely control the amount of the cigarette liquid to be transferred to the liquid receiving part 42, the cigarette liquid usually fails to be transferred uniformly to the liquid receiving part 42.

If a part of the liquid receiving part 42 receives a lesser amount of the cigarette liquid than the other parts, the liquid droplets are not uniformly generated so that an unpleasing burning taste appears in the atomized vapor.

In addition, since the amount of the cigarette liquid to be transferred to the liquid receiving part 42 cannot be precisely controlled, the liquid leakage occurs.

Moreover, the cigarette liquid may drop down through the sensing unit 3 and leak out from the at least one entrance 1c, which results in terrible user experience.

Moreover, there are some differences between the electronic cigarettes and the tobacco cigarettes.

However, while the user smokes the conventional electronic cigarette, the electric power transmitted to the electric heater cannot be adjusted.

That is the heating speed of the electric heater cannot be adjusted.

Since the cigarette liquid of the conventional electronic cigarette is provided according to a siphon effect, the speed of providing the cigarette liquid is too slow.

Under this circumstance, the amount of the atomized vapor is insufficient or the atomizer is burnt out.

That is, the conventional method of atomizing the cigarette liquid of the electronic cigarette still has some drawbacks.

The above problems lead to significant differences between the tobacco cigarette and the electronic cigarette.

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