Electronic cigarette and its nozzle

1. An electronic cigarette nozzle, comprising an atomizer, and a nozzle cover configured at an end of the atomizer, wherein the electronic cigarette nozzle further comprises a hermetic ring without a center hole hermetically configured between the atomizer and the nozzle cover, the hermetic ring without a center hole defines an concave chamber oriented to the atomizer, a thickness of the top wall of the concave chamber is gradually increased from a circumference to a center so that an upper surface of the top wall is a bevel, and plural through holes are circumferentially defined in the top wall; the concave chamber on a lower surface of its top wall is configured with plural ribs having a pre-determined height and alternately arranged with the through holes, and the ribs have a pre-determined radial length.

2. The electronic cigarette nozzle as described in claim 1 , wherein the hermetic ring without a center hole defines a circumferential slot oriented to the nozzle cover and coaxial with the concave chamber, for accommodating a side wall of the nozzle cover.

3. The electronic cigarette nozzle as described in claim 2 , wherein the slot is circumferentially configured with stripes on an outer surface of its side wall, to interferentially and hermetically engage with the atomizer.

4. The electronic cigarette nozzle as described in claim 1 , wherein the atomizer comprises a hollow tubular-shaped atomizing sleeve, an oil-storage cotton which is coaxially fixed within the atomizing sleeve and hollow tubular-shaped, a protection tube affixed to an inner wall of the oil-storage cotton, an atomizing unit configured within the protection tube and an atomizing seat hermetically fixed to an end of a tube constituted by the oil-storage cotton and the protection tube and remote from the nozzle cover.

5. The electronic cigarette nozzle as described in claim 4 , wherein the protection tube comprises a heat-resistant layer affixed onto the inner wall of the oil-storage cotton and coaxial with the oil-storage cotton, a first fiberglass tube coaxially configured at an inner side of the heat-resistant layer, and a second fiberglass tube affixed to an outer wall of the first fiberglass tube and an inner wall of the heat-resistant layer and located at an end facing to the nozzle cover, the first fiberglass tube has its one end inserted into the concave chamber of the hermetic ring without a center hole, and the second fiberglass tube has its one end to abut against the atomizing unit.

6. The electronic cigarette nozzle as described in claim 5 , wherein the nozzle cover defines a suction hole, and the suction hole, a space defined by the nozzle cover and the top wall of the hermetical ring without a center hole, the through holes of the hermetical ring without a center hole, a space defined by adjacent ribs and having a pre-determined height, and the protection tube orderly constitute a smog passage.

7. The electronic cigarette nozzle as described in claim 4 , wherein the atomizing unit comprises an oil guiding member having its opposite ends to pass through the protection tube and abut against the oil-storage cotton, and a heating wire wound around the oil guiding member.

8. The electronic cigarette nozzle as described in claim 5 , wherein the atomizer is configured with a first connector at its end remote from the nozzle cover for mating with a power rod of the electronic cigarette, the first connector comprises a first connecting seat serving as a first electrode, a first pole coaxially configured within the first connecting seat and serving as a second electrode, and a first insulating sleeve configured between the first connecting seat and the first pole to insulate them.

9. The electronic cigarette nozzle as described in claim 8 , wherein lead wires connected with opposite ends of the heating wire pass through the first fiberglass tube, the atomizing seat and are respectively electrically connected with the first connecting seat and the first pole.

10. An electronic cigarette, wherein the electronic cigarette comprises an electronic cigarette nozzle and a power rod connected with the electronic cigarette nozzle, wherein the electronic cigarette nozzle comprises an atomizer, a nozzle cover configured at an end of the atomizer, a hermetic ring without a center hole hermetically configured between the atomizer and the nozzle cover, the hermetic ring without a center hole defines an concave chamber oriented to the atomizer, a thickness of the top wall of the concave chamber is gradually increased from a circumference to a center so that an upper surface of the top wall is a bevel, and plural through holes are circumferentially defined in the top wall; the concave chamber on a lower surface of its top wall is configured with plural ribs having a pre-determined height and alternately arranged with the through holes, and the ribs have a pre-determined radial length.

11. The electronic cigarette as described in claim 10 , wherein the power rod is configured with a battery therein, and the power rod is further configured with a second connector at its end to mate with the electronic cigarette nozzle.

12. The electronic cigarette as described in claim 11 , wherein the second connector comprises a second connecting seat serving as a first electrode, a second pole coaxially configured within the second connecting seat and serving as a second electrode, a second insulating sleeve configured between the second connecting seat and the second pole to insulate them.