Electronic cigarette

1. An electronic cigarette, comprising a hollow atomizing stem, a conduit arranged in the atomizing stem, an absorbing device, a heating wire, and a cigarette holder arranged on a top of the atomizing stem, wherein a liquid storage chamber is defined between a inner wall of the atomizing stem and an outer wall of the conduit, the conduit comprises a first segment and a second segment, and a length of the first segment is shorter than a length of the second segment, wherein the first segment has a first inner dimension along a transverse direction inside the first segment and the second segment has a second inner dimension along the transverse direction inside the second segment; and the first inner dimension is larger than the second inner dimension, two end portions of the absorbing device are placed within the liquid storage chamber, and a middle portion of the absorbing device passes transversally through the first segment of the conduit and is held inside the first segment of the conduit, the heating wire wound around the middle portion of the absorbing device, and wherein second segment is positioned between the first segment and the cigarette holder.

2. An electronic cigarette, comprising:

a hollow atomizing stem;

a cigarette holder arranged on a top of the atomizing stem;

a conduit arranged in the atomizing stem, comprising a first segment and a second segment in communication with the first segment, wherein the first segment has a first inner dimension along a transverse direction inside the first segment and the second segment has a second inner dimension along the transverse direction inside the second segment; and the first inner dimension is larger than the second inner dimension, and a length of the first segment is shorter than a length of the second segment;

a storage chamber for holding an atomizable liquid;

a powering unit; and

a heating device arranged inside the first segment of the conduit to be powered by the powering unit for atomizing the atomizable liquid into an aerosol, wherein, when in use, the aerosol travels from the first segment, through the second segment, to the cigarette holder.

3. The electronic cigarette according to claim 2 , wherein the second segment is positioned between the cigarette holder and the first segment.

4. The electronic cigarette according to claim 2 , wherein the heating device comprises a heating wire.

5. The electronic cigarette according to claim 4 , wherein the electronic cigarette further comprises an absorbing device, the two end portions of the absorbing device are placed outside the first segment, and a middle portion of the absorbing device passes transversally through the first segment of the conduit and is held inside the first segment of the conduit, the heating wire wound around the middle portion of the absorbing device.

6. The electronic cigarette of claim 2 , wherein the first segment has a first axis along a longitudinal direction of the first segment, and the second segment has a second axis along a longitudinal direction of the second segment, and the first axis and the second axis overlaps.

7. The electronic cigarette of claim 2 , wherein the first segment has a first axis along a longitudinal direction of the first segment, and the second segment has a second axis along a longitudinal direction of the second segment, and the first axis and the second axis are parallel.

8. An electronic cigarette, comprising:

a hollow atomizing stem;

a cigarette holder arranged on a top of the atomizing stem;

a conduit arranged in the atomizing stem, comprising a first segment and a second segment in communication with the first segment, wherein a first inner dimension along a transverse direction inside the first segment is larger than a second inner dimension along the transverse direction inside the second segment a length of the first segment is shorter than a length of the second segment, and the second segment is between the cigarette holder and the first segment;

a storage chamber outside and surrounding the conduit for holding an atomizable material;

a powering unit; and

a heating device arranged inside the first segment of the conduit, wherein, when in use, the heating device, powered by the powering unit, atomizes the atomizable material coming from the storage chamber.

9. The electronic cigarette according to claim 8 , wherein the heating device comprises a heating wire, and the electronic cigarette further comprises an absorbing device for absorbing the atomizable material from the storage chamber; the heating wire wounds around the absorbing device, and the atomizable material comes from the storage chamber to the heating wire via the absorbing device.

10. The electronic cigarette of claim 8 , wherein the first segment has a first axis, and the second segment has a second axis, and the first axis and the second axis overlap.

11. The electronic cigarette of claim 8 , wherein the first segment has a first axis, and the second segment has a second axis, and the first axis and the second axis extend along a same longitudinal direction.