Atomizer and electronic cigarette

1 . An atomizer, comprising:

an outer housing, the outer housing being internally provided with a liquid storage cavity for storing a liquid substrate;

and the outer housing comprising a first side wall and a second side wall opposite to each other so that the liquid storage cavity is disposed between the first side wall and the second side wall;

and an axial direction of the outer housing being defined to extend through the liquid storage cavity;

an atomization assembly disposed within the outer housing next to the liquid storage cavity along the axial direction of the outer housing for atomizing the liquid substrate from the liquid storage cavity to generate an aerosol so that the atomization assembly is disposed between the first and second side walls;

and an atomization surface of the atomization assembly for generating the aerosol extending from the first side wall to the second side wall at a side of the atomization assembly facing away from the liquid storage cavity;

and a holder disposed within the outer housing at the side of the atomization assembly and disposed to be spaced from the atomization surface;

the holder comprising a first surface facing the atomization surface along the axial direction of the outer housing;

an atomization cavity formed between the first surface and the atomization surface so that the first surface and the atomization surface are respectively located at two opposite sides of the atomization cavity along the axial direction of the outer housing;

wherein the outer housing comprises a first communication port formed between the first surface and the first side wall and configured to allow air entry into the atomization cavity;

and a second communication port formed between the atomization surface and the second side wall and configured to allow the generated aerosol by the atomization surface leaving away from the atomization cavity;

the first and second communication ports are distant from each other along both the axial direction and a direction perpendicular to the axial direction;

wherein the first surface is configured to be inclined by being increasingly spaced away from the atomization surface along an extension direction of the atomization surface between the first and second side walls, an airflow entering the atomization cavity from the first communication port at least partially flows to the second communication port along the extension direction of the atomization surface under guidance of the first surface;

and the first surface is configured to receive the liquid substrate seeped from the atomization assembly and/or condensate formed by condensation of the aerosol within the atomization cavity;

wherein an air inlet for allowing external air to enter and an airflow channel for outputting the aerosol are further provided within the outer housing;

and the first communication port faces a part of the first surface which is the farthest part of the first surface away from the atomization surface;

and the second communication port in communication with the atomization cavity faces another part of the first surface which is the closest part of the first surface to the atomization surface, such that an airflow entering the atomization cavity from the air inlet at least partially flows to the airflow channel along the extension direction of the atomization surface under the guidance of the first surface;

and the atomization cavity is in airflow communication with the air inlet through the first communication port, and is in airflow communication with the airflow channel through the second communication port.

2 . The atomizer according to claim 1 , wherein the holder further comprises a second surface facing away from the first surface along the axial direction of the outer housing, the second surface being configured to absorb or retain the liquid substrate and/or condensate received by the first surface.

3 . The atomizer according to claim 2 , wherein the holder further comprises a drainage side wall, and is configured to guide the liquid substrate and/or condensate received by the first surface to the second surface through the drainage side wall.

4 . The atomizer according to claim 2 , wherein the second surface is provided with grooves that absorb or retain the liquid substrate and/or condensate by capillary action.

5 . The atomizer according to claim 2 , wherein the holder comprises a housing, and a liquid absorption component accommodated in the housing and capable of absorbing the liquid substrate and/or condensate by the capillary action; wherein,

the first surface is formed on the housing; and

at least a part of the liquid absorption component is exposed out of the housing and forms the second surface.

6 . The atomizer according to claim 1 , wherein a projection of at least a part of the first surface on a plane perpendicular to the axial direction of the outer housing covers the atomization surface.

7 . The atomizer according to claim 1 , wherein the outer housing is configured as a hollow cylinder having an open end;

an end cover is provided at the open end, and the air inlet is formed in the end cover; and

a sealing mechanism for sealing the liquid storage cavity and accommodating and retaining the atomization assembly is further provided within the outer housing; and at least a part of the airflow channel is provided on the sealing mechanism.

8 . An electronic cigarette, comprising a power supply apparatus and the atomizer claim 1 , the power supply apparatus being configured to supply power to the atomizer, and the atomizer being configured to atomize a liquid substrate to generate an aerosol for smoking.

9 . The atomizer according to claim 1 , wherein the holder further comprises a second surface facing away from the first surface along the axial direction of the outer housing, the second surface being configured to absorb or retain the liquid substrate and/or condensate received by the first surface.

10 . The atomizer according to claim 9 , wherein the holder further comprises a drainage side wall, and is configured to guide the liquid substrate and/or condensate received by the first surface to the second surface through the drainage side wall.

11 . The atomizer according to claim 9 , wherein the second surface is provided with grooves that absorb or retain the liquid substrate and/or condensate by capillary action.

12 . The atomizer according to claim 11 , wherein the holder comprises a housing, and a liquid absorption component accommodated in the housing and capable of absorbing the liquid substrate and/or condensate by the capillary action; wherein,

the first surface is formed on the housing; and

at least a part of the liquid absorption component is exposed out of the housing and forms the second surface.

13 . The atomizer according to claim 1 , wherein a projection of at least a part of the first surface on a plane perpendicular to the axial direction of the outer housing covers the atomization surface.