Electronic cigarette

1. An electronic cigarette, comprising a battery assembly and an atomizing assembly, wherein,

the atomizing assembly is provided with an atomizer connecting end configured to be connected to the battery assembly, and the atomizer connecting end is provided with a first magnetic member;

the battery assembly is provided with a battery connecting end configured to cooperate with the atomizer connecting end, and the battery connecting end is provided with a second magnetic member configured to be connected to the first magnetic member by magnetism attraction; and

the battery connecting end is provided with an accommodating cavity which allows the atomizer connecting end to be inserted therein; a side wall of the accommodating cavity is provided with a guiding retaining groove which extends along an axial direction of the electronic cigarette to an end surface of an opening of the accommodating cavity, and a wall of the guiding retaining groove is provided with a corner angle; the atomizer connecting end is provided with a retaining member configured to be inserted in the guiding retaining groove, and the retaining member has a corner angle and is configured to abut against the guiding retaining groove to prevent mutual rotation of the atomizing assembly and the battery assembly; or,

the atomizer connecting end is provided with the accommodating cavity which allows the atomizer connecting end to be inserted therein; a side wall of the accommodating cavity is provided with the guiding retaining groove; and the battery connecting end is provided with the retaining member; and

the retaining member is a protruding snap ring provided with an embossment along the axial direction of the electronic cigarette;

the protruding snap ring is fixedly connected to the atomizer connecting end;

the accommodating cavity of the battery connecting end is provided with a groove ring configured to cooperate with the protruding snap ring;

a wall of the groove ring is provided with a guiding retaining groove; and

the guiding retaining groove is configured to allow the embossment of the protruding snap ring to be inserted therein, to prevent the mutual rotation of the atomizing assembly and the battery assembly.

2. The electronic cigarette according to claim 1 , wherein,

the battery connecting end is provided with a guiding retaining groove seat;

the guiding retaining groove is provided at a side wall of the guiding retaining groove seat; and

the retaining member is a protrusion arranged at an outer portion of the atomizing assembly along the axial direction of the electronic cigarette, and the protrusion is configured to be inserted into the guiding retaining groove to prevent the mutual rotation of the atomizing assembly and the battery assembly.

3. The electronic cigarette according to claim 2 , wherein, at least one protrusion is provided, and at least two guiding retaining grooves are provided.

4. The electronic cigarette according to claim 2 , wherein a length of the protrusion along an axial direction of the atomizer connecting end is less than or equal to an axial length of the atomizer connecting end.

5. The electronic cigarette according to claim 2 , wherein, the protrusion is a semicircle with elasticity, and the guiding retaining groove is a semicircular groove.

6. The electronic cigarette according to claim 1 , wherein, the protruding snap ring and the groove ring are made of plastic material;

the protruding snap ring and the atomizer connecting end are connected by injection molding; and

the groove ring and the battery connecting end are connected by injection molding.

7. The electronic cigarette according to claim 1 , wherein,

the atomizer connecting end has a polygonal prism structure, and the accommodating cavity of the battery connecting end is a hollow polygonal prism configured to cooperate with the atomizer connecting end and to allow the atomizer connecting end to be inserted therein;

or,

the atomizer connecting end is a hollow polygonal prism configured to cooperate with the battery connecting end and to allow the battery connecting end to be inserted therein, and the battery connecting end has a polygonal prism structure.

8. The electronic cigarette according to claim 7 , wherein the polygonal prism is a trilateral polygonal prism or a quadrilateral polygonal prism.

9. The electronic cigarette according to claim 7 , wherein,

an outer portion of the polygonal prism of the atomizer connecting end is provided with an embossment along the axial direction of the electronic cigarette, and the accommodating cavity of the battery connecting end is provided with a groove configured to cooperate with the embossment and to allow the embossment to be inserted therein;

or,

the hollow polygonal prism of the atomizer connecting end is provided with a groove, and an outer portion of the polygonal prism of the battery connecting end is provided with an embossment along the axial direction of the electronic cigarette; and

the embossment is a magnet; and

a wall of the groove is made of magnetic material.

10. The electronic cigarette according to claim 8 , wherein,

an outer portion of the polygonal prism of the atomizer connecting end is provided with an embossment along the axial direction of the electronic cigarette, and the accommodating cavity of the battery connecting end is provided with a groove configured to cooperate with the embossment and to allow the embossment to be inserted therein;

or,

the hollow polygonal prism of the atomizer connecting end is provided with a groove, and an outer portion of the polygonal prism of the battery connecting end is provided with an embossment along the axial direction of the electronic cigarette; and

the embossment is a magnet; and

a wall of the groove is made of magnetic material.

11. The electronic cigarette according to claim 1 , wherein the accommodating cavity of the battery connecting end is an arched groove which is formed by cutting a part of arc body from a cylinder along at least one section and is configured to allow the atomizer connecting end to be inserted therein, and the atomizer connecting end is an arched body which is formed by cutting a part of arc body from a cylinder along at least one section and is configured to cooperate with the arched groove to prevent the mutual rotation of the atomizing assembly and the battery assembly;

or,

the battery connecting end is formed by cutting a part of arc body from a cylinder along at least one section, and the atomizer connecting end is an arched groove which is formed by cutting a part of arc body from a cylinder along at least one section and is configured to allow the atomizer connecting end to be inserted therein.

12. The electronic cigarette according to claim 1 , wherein,

an outer portion of the atomizing assembly is provided with a first mark configured to indicate the position of the retaining member; and

an outer portion of the battery assembly is provided with a second mark configured to cooperate with the first mark to indicate the connection location.

13. The electronic cigarette according to claim 1 , wherein,

the retaining member is a magnet, and a wall of the guiding retaining groove is made of magnetic material;

or,

the retaining member is made of magnetic material, and a wall of the guiding retaining groove is a magnet.

14. The electronic cigarette according to claim 1 , wherein,

the battery assembly further comprises a spring electrode assembly;

the spring electrode assembly comprises a spring, a battery holder and a battery electrode;

the spring has one end fixedly connected to the battery holder, and another end connected to the battery electrode and configured to, under the action of an external force, make the battery electrode to move telescopically under the action of the spring;

the second magnetic member is connected to the battery holder, and is fixed on the battery connecting end;

the atomizing assembly further comprises an upper electrode; and

the upper electrode is made of magnetic material and functions as the first magnetic member, and is configured to be connected to the second magnetic member by magnetism attraction, to connect the atomizing assembly to the battery assembly.

15. The electronic cigarette according to claim 14 , wherein,

the second magnetic member is a magnet, and the upper electrode is made of magnetic material;

or,

the second magnetic member is made of magnetic material, and the upper electrode is a magnet.

16. The electronic cigarette according to claim 1 , wherein,

the battery assembly further comprises a connection sleeve and a spring electric motor assembly;

the atomizing assembly further comprises an upper electrode and an inner electrode; and

the connection sleeve and the upper electrode, as well as the spring electric motor assembly and the inner electrode, are electrically connected respectively, to form a closed circuit configured to allow the battery assembly to supply power to internal components of the atomizing assembly.