Electronic cigarette

1. An electronic cigarette comprising a battery assembly and an atomizer assembly, the battery assembly and the atomizer assembly are connected to each other through a first connector and a second connector,

wherein the first connector comprises a first top electrode and a second top electrode mounted at an end face of the first connector and extending in the direction toward the second connector along an axial direction of the first connector; the first top electrode and the second electrode are arranged parallelly and spaced from each other;

the second connector comprises a first bottom electrode and a second bottom electrode that are located in the second connector with respect to the first and second top electrodes; when the battery assembly and the atomizer assembly are connected together, there are elastic tight fit occurred between the first top electrode and the first bottom electrode as well as between the second top electrode and the second bottom electrode;

the first top electrode and the first bottom electrode are connected electrically to each other, and the second top electrode and the second bottom electrode are connected electrically to each other;

the first top electrode is shaped to be inserted into the first bottom electrode and the second top electrode is shaped to be inserted into the second bottom electrode; both the first and second bottom electrodes are configured to expand and generate elastic deformation so that the atomizer assembly is connected to the battery assembly in the form of elastic tight fit to supply an electric power for the atomizer assembly;

cross sections of the first and second top electrodes are round-shaped; each of the first and second top electrodes comprise a top part, a fixing part and a connecting part; the fixing part is connected to the first connector and the connecting part is connected between the top part and the fixing part; and

a diameter of the connecting part is smaller than that of the top part and the fixing part, and a ring-shaped groove is formed on an outer surface of the connecting part.

2. The electronic cigarette of claim 1 , wherein the first top electrode, the second top electrode, the first bottom electrode and the second bottom electrode are made of elastic conductive material that can expand or contract in the radial direction of the electrodes.

3. The electronic cigarette of claim 2 , wherein the elastic conductive material is elastic metal.

4. The electronic cigarette of claim 1 , wherein the first and second bottom electrodes are of the same shape, each of the first and second bottom electrodes comprise an engaging part extending in the direction toward the first connector and a second connecting part received in the second connector; wherein, the engaging part includes a plurality of plates arranged radially along the circumferential direction of the engaging part; a protruding part that can expand and contract along the radial direction of the engaging part is formed on each plate along the radial direction of the engaging part; all of the protruding parts surround to form a block button for engaging with the ring-shaped groove.

5. The electronic cigarette of claim 4 , wherein the first and second bottom electrodes are made of elastic metal.

6. The electronic cigarette of claim 1 , wherein the first connector further comprises an first installation base for fixing the first and second top electrodes, the first installation base defines a pair of first installation holes for the installation of the first and second top electrodes, and a first breathing hole is formed between the pair of the first installation holes.

7. The electronic cigarette of claim 6 , wherein, the second connector further comprises a second installation base, the second installation base defines a pair of second installation holes for the installation of the first and second bottom electrodes, and a second breathing hole is formed between the pair of the second installation holes, the first breathing hole and the second breathing hole communicate with each other to form a channel for cigarette smoke flowing.

8. The electronic cigarette of claim 7 , wherein the first and second installation bases are made of insulated material.

9. The electronic cigarette of claim 1 , wherein the atomizer assembly is provided with a first outer tube and the battery assembly is provided with a second outer tube, the first connector or the second connector are mounted at one end of the first outer tube or the second outer tube respectively, the first outer tube is detachably connected to the second outer tube through the connection between the first connector and the second connector.

10. An electronic cigarette comprising a battery assembly and an atomizer assembly, the battery assembly and the atomizer assembly are connected to each other through a first connector and a second connector,

wherein the first connector comprises a first top electrode and a second top electrode mounted at an end face of the first connector and extending in the direction toward the second connector along an axial direction of the first connector; the first top electrode and the second electrode are arranged parallelly and spaced from each other;

the second connector comprises a first bottom electrode and a second bottom electrode that are located in the second connector with respect to the first and second top electrodes; when the battery assembly and the atomizer assembly are connected together, there are elastic tight fit occurred between the first top electrode and the first bottom electrode as well as between the second top electrode and the second bottom electrode;

the first top electrode and the first bottom electrode are connected electrically to each other, and the second top electrode and the second bottom electrode are connected electrically to each other;

the first top electrode is shaped to be inserted into the first bottom electrode and the second top electrode is shaped to be inserted into the second bottom electrode; both the first and second bottom electrodes are configured to expand and generate elastic deformation so that the atomizer assembly is connected to the battery assembly in the form of elastic tight fit to supply an electric power for the atomizer assembly;

cross sections of the first and second top electrodes are round-shaped; each of the first and second top electrodes comprise a top part, a fixing part and a connecting part; the fixing part is connected to the first connector and the connecting part is connected between the top part and the fixing part; and

the connecting part comprises a plurality of protruding strips and slots formed between each two adjacent protruding strips, and a diameter of the connecting part is larger than that of the top part.

11. The electronic cigarette of claim 10 , wherein, the first and second bottom electrodes are hollow cylinder shaped, and diameters of the first and second bottom electrodes are equal to that of the top parts of the first and second top electrodes.

12. The electronic cigarette of claim 11 , wherein the first and second top electrodes are made of elastic metal.