Search

EP-4133953-B1 - ATOMIZER AND ELECTRONIC CIGARETTE

EP4133953B1EP 4133953 B1EP4133953 B1EP 4133953B1EP-4133953-B1

Inventors

  • LU, Linhai
  • LI, Yinzhe
  • XU, Zhongli
  • LI, Yonghai

Dates

Publication Date
20260506
Application Date
20210412

Claims (9)

  1. An atomizer (100), comprising an outer housing (10), the outer housing (10) being internally provided with a liquid storage cavity (30) for storing a liquid substrate, and an atomization assembly (40) for atomizing the liquid substrate to generate an aerosol, and the outer housing (10) comprising a first side wall (110) and a second side wall (120) opposite to each other along a thickness direction, and an atomization surface (412) extending from the first side wall (110) to the second side wall (120), wherein a holder (60, 60a, 60b) is provided within the outer housing (10), and the holder (60, 60a, 60b) is provided with a first surface (61, 61a, 61b) opposite to the atomization surface (412) along the axial direction of the outer housing (10); an atomization cavity (70) is formed between the first surface (61, 61a, 61b) and the atomization surface (412); the first surface (61, 61a, 61b) is configured to be inclined towards the atomization surface (412) along an extension direction of the atomization surface (412), and is configured to receive the liquid substrate seeped from the atomization assembly (40) and/or condensate formed by condensation of the aerosol within the atomization cavity (70), and an air inlet (24) for allowing external air to enter and an airflow channel (524) for outputting the aerosol are further provided within the outer housing (10); characterized in that , the outer housing (10) is provided with a first communication port close to the first side wall (110) to allow the air within the atomization cavity (70) to flow out, and the outer housing (10) is provided with a second communication port close to the second side wall (120) to allow the outside air to enter the atomization cavity, wherein an airflow entering the atomization cavity (70) from the air inlet (24) at least partially flows to the airflow channel (524) along the extension direction of the atomization surface (412) under the guidance of the first surface (61, 61a, 61b), and the atomization cavity (70) is in airflow communication with the air inlet (24) through the second communication port, and is in airflow communication with the airflow channel (524) through the first communication port.
  2. The atomizer (100) according to claim 1, wherein the first communication port is opposite to at least a part of the first surface (61, 61a, 61b) along the extension direction of the atomization surface (412).
  3. The atomizer (100) according to claim 1 or 2, wherein the holder (60, 60a, 60b) further comprises a second surface (62, 62a, 62b) with the back facing the first surface (61, 61a, 61b) along the axial direction of the outer housing (10), the second surface (62, 62a, 62b) being configured to absorb or retain the liquid substrate and/or condensate received by the first surface (61, 61a, 61b).
  4. The atomizer (100) according to claim 3, wherein the holder (60, 60a, 60b) further comprises a drainage side wall (64, 64b), and is configured to guide the liquid substrate and/or condensate received by the first surface (61, 61a, 61b) to the second surface through the drainage side wall.
  5. The atomizer (100) according to claim 3, wherein the second surface (62a) is provided with a plurality of grooves (621a) that absorb or retain the liquid substrate and/or condensate by capillary action.
  6. The atomizer (100) according to claim 3, wherein the holder (60b) comprises a housing (610b), and a liquid absorption component (620b) accommodated in the housing and capable of absorbing the liquid substrate and/or condensate by the capillary action; wherein, the first surface (61b) 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 (62b).
  7. The atomizer (100) according to claims 1 or 2, wherein a projection of at least a part of the first surface (61, 61a, 61b) on a plane perpendicular to the axial direction of the outer housing (10) covers the atomization surface (412).
  8. The atomizer (100) according to claim 1, wherein the outer housing (10) is configured as a hollow cylinder having an open end; an end cover is provided at the open end, and the air inlet (24) is formed in the end cover; and a sealing mechanism (50) for sealing the liquid storage cavity (30) and accommodating and retaining the atomization assembly is further provided within the outer housing (10); and at least a part of the airflow channel (524) is provided on the sealing mechanism.
  9. An electronic cigarette, comprising a power supply apparatus and the atomizer (100) according to any one of claims 1-8, the power supply apparatus being configured to supply power to the atomizer (100), and the atomizer (100) being configured to atomize a liquid substrate to generate an aerosol for smoking.

Description

TECHNICAL FIELD Embodiments of the present invention relate to the technical field of electronic cigarettes, and in particular relate to an atomizer and an electronic cigarette. The present invention relates to an atomizer and to an electronic cigarette comprising such an atomizer. BACKGROUND An electronic cigarette is a product for heating and atomizing a liquid substrate containing nicotine to generate an aerosol to be smoked by a user. The portion, achieving an atomization function, of the electronic cigarette is an atomizer, and the atomizer structurally includes a liquid storage cavity for storing the liquid substrate, a porous body for absorbing the liquid substrate from the liquid storage cavity, and a heating body for heating and atomizing the liquid substrate absorbed by the porous body. Furthermore, in order to transmit the aerosol in a smoking process, an air inlet for allowing air to enter and a smoke transmission pipe for outputting the aerosol are provided at the portion, corresponding to the heating body, of a housing of the atomizer. In the smoking process of the user, external air enters the atomizer from the air inlet and then carries the aerosol to be output through the smoke transmission pipe, to form a complete airflow circulation. Due to the configuration of an airflow circulation structure, the liquid substrate seeped from the porous body in a use process of the atomizer and condensate formed after the aerosol formed by heating is cooled in a transmission process can flow out of the air inlet after being accumulated in the atomizer, thereby causing oil seepage and pollution. Based on the above content, an improved patent No. 201820119392.7 in the prior art provides an atomizer with an air inlet shielding structure, which employs a blocking plate which can be projected onto an axial plane of the atomizer to cover the air inlet, thereby shielding the air inlet, and preventing the liquid substrate from flowing out. After the blocking plate structure is added, on one hand, smoking resistance is increased; and on the other hand, an external airflow entering from the air inlet becomes diffused. Thus, a part of the generated aerosol is diffused to edge corners to be retained, and the smoke output efficiency is reduced. CN 110 279 158 A describes a heat generating sheet for an atomizer, an atomizer and an electronic cigarette. The heat generating sheet adopts a mesh-shaped heating material, and the condensed liquid is recycled, so that the atomization effect is optimal, and the degree of smoke oil reduction is improved. SUMMARY In order to solve the problem of seepage of a liquid substrate of an electronic cigarette in the prior art, embodiments of the present application provide an atomizer that can avoid seepage of the liquid substrate and improve the aerosol output efficiency. A first aspect of the present invention provides an atomizer, including an outer housing, the outer housing being internally provided with a liquid storage cavity for storing a liquid substrate, and an atomization assembly for atomizing the liquid substrate to generate an aerosol, and the outer housing including a first side wall and a second side wall opposite to each other along a thickness direction, and an atomization surface extending from the first side wall to the second side wall; where a holder is provided within the outer housing, and the holder is provided with a first surface opposite to the atomization surface along the axial direction of the outer housing; and an atomization cavity is formed between the first surface and the atomization surface. The first surface is configured to be inclined towards the atomization surface along the extension direction of the atomization surface, and 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. According to present invention, an air inlet for allowing external air to enter and an airflow channel for outputting the aerosol are further provided within the outer housing. The outer housing is provided with a first communication port close to the first side wall, to allow the air within the atomization cavity to flow out, and the outer housing is provided with a second communication port close to the second side wall, to allow the outside air to enter the atomization cavity, wherein 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 second communication port, and is in airflow communication with the airflow channel through the first communication port. In a preferred embodiment, the first communication port is opposite to at least a part of the first surface along the extension direction of the atomization surface