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EP-4238429-B1 - AEROSOL GENERATING APPARATUS COMPRISING AN ATOMIZER

EP4238429B1EP 4238429 B1EP4238429 B1EP 4238429B1EP-4238429-B1

Inventors

  • QIU, WEIHUA

Dates

Publication Date
20260506
Application Date
20210811

Claims (11)

  1. An aerosol generating device comprising an atomizer, the atomizer comprising an atomizing housing (4) and an atomizing base (8), wherein a lower end of the atomizing housing (4) is connected to an upper end of the atomizing base (8), the bottom of the atomizing housing (4) is provided with a communicating hole to allow an atomizing chamber (41) in the atomizing housing (4) to communicate with an inner cavity of the atomizing base (8), a partition plate (82) is provided in the inner cavity of the atomizing base (8), and the partition plate (82) divides the inner cavity of the atomizing base (8) into a liquid storage cavity (83) and a ventilation cavity (84), an upper end of the partition plate (82) is provided with an opening (86), and the opening (86) is configured to communicate the liquid storage cavity (83) with the ventilation cavity (84), the liquid storage cavity (83) is located directly below the communicating hole of the atomizing housing (4), the ventilation cavity (84) is located away from an underside of the communicating hole of the atomizing housing (4), a bottom wall of the atomizing base (8) is provided with at least one ventilation hole (81), the ventilation hole (81) is located in the ventilation cavity (84); the aerosol generating device further comprises a battery rod, the battery rod comprises a battery rod shell (10) and a battery holder (14) installed in the battery rod shell (10), an upper end of the battery holder (14) is mounted with an airflow guiding device (12), the airflow guiding device (12) is provided with an air intake channel, a downstream end of the air intake channel of the airflow guiding device (12) communicates with the ventilation hole (81) of the atomizing base (8), an airflow switch device (13) is provided on the battery holder (14), the battery rod shell (10) is provided with an air intake hole (101), and the air intake hole (101) communicates with an upstream end of the air intake channel of the airflow guiding device (12) through the airflow switch device (13); characterized in that the airflow guiding device (12) comprises a main body (121), the main body (121) is located between the bottom of the atomizing base (8) and the upper end of the battery holder (14), the main body (121) is provided with an extension part, the extension part is provided with one segment of the air intake channel, the segment of the air intake channel on the extension part communicates with another segment of the air intake channel provided on the main body (121), wherein the segment of the air intake channel provided on the main body (121) communicates with the ventilation hole (81), and the segment of the air intake channel on the extension part communicates with the air intake hole (101) through the airflow switch device (13).
  2. The aerosol generating device according to claim 1, wherein the bottom wall of the ventilation cavity (84) is provided with a fence (85) surrounding the outer periphery of the ventilation hole (81).
  3. The aerosol generating device according to claim 1 or 2, wherein there are two partition plates (82) provided in the inner cavity of the atomizing base (8), the two partition plates (82) divide the inner cavity of the atomizing base (8) into the liquid storage cavity (83) and two ventilation cavities (84), the liquid storage cavity (83) is located between the two partition plates (82), there are two ventilation holes (81) provided on the bottom wall of the atomizing base (8), and one ventilation hole (81) corresponds to one ventilation cavity (84).
  4. The aerosol generating device according to claim 1, further comprising a liquid storage casing (3), wherein a liquid storage chamber (33) is provided in the liquid storage casing (3), the upper end of the liquid storage casing (3) is provided with a mouthpiece (32), the lower end of the liquid storage casing (3) is sleeved on the outside of the atomizing base (8), the lower end of the atomizing housing (4) is provided with a silicone sealing device (7), the silicone sealing device (7) is arranged between the atomizing housing (4) and the atomizing base (8), the side wall of the silicone sealing device (7) is in contact with the inner surface of the liquid storage casing (3) for sealing the lower end of the liquid storage casing (3), the silicone sealing device (7) is provided with the communicating hole to allow the atomizing chamber (41) to communicate with the inner cavity of the atomizing base (8).
  5. The aerosol generating device according to claim 4, wherein an air guiding tube (31) is provided in the liquid storage casing (3), the upper end of the atomizing housing (4) is connected to and communicated with the air guiding tube (31).
  6. The aerosol generating device according to claim 4, wherein a liquid guiding member (6) is provided in the atomizing housing (4), a heating wire (5) is wound on the liquid guiding member (6), the heating wire (5) is located in the atomizing chamber (41) of the atomizing housing (4), a contact pin (9) is fixed on the bottom wall of the atomizing base (8), a contact pin installation hole is provided on the bottom wall of the atomizing base (8), and the contact pin (9) passes through the contact pin installation hole, one end of the contact pin is electrically connected with the heating wire (5), and the other end of the contact pin (9) is used to electrically connect with an ejector pin in a battery rod.
  7. The aerosol generating device according to claim 6, wherein the bottom wall of the atomizing base (8) is provided with a fence surrounding the outer periphery of the contact pin installation hole.
  8. The aerosol generating device according to claim 1, wherein the battery rod shell (10) is sleeved on the outside of the atomizer, the bottom of the atomizing base (8) abuts against the airflow guiding device (12), and the ventilation hole (81) communicates with the downstream end of the air intake channel.
  9. The aerosol generating device according to claim 1, wherein the outer surface of the airflow guiding device (12) is provided with an airflow guiding groove (124); when the bottom of the atomizing base (8) abuts against the airflow guiding device (12), one segment of the air intake channel is formed between the bottom end surface of the atomizing base (8) and the airflow guiding groove (124) on the end surface of the airflow guiding device (12), and another segment of the air intake channel is formed between the inner surface of the battery rod shell (10) and the airflow guiding groove (124) on the side surface of the airflow guiding device (12).
  10. The aerosol generating device according to claim 1, wherein the upper end of the battery holder (14) is provided with a mounting hole (141), the airflow switch device (13) is mounted in the mounting hole (141), one side of the main body (121) is provided with a first extension part (122), a distal end of the first extension part (122) is provided with a hollow cylinder which is embedded in the mounting hole (141) and located at the back side of the airflow switch device (13).
  11. The aerosol generating device according to claim 10, wherein the side wall of the mounting hole (141) is provided with a vent hole (142) which is configured to communicate the air intake hole (101) with the air intake channel of the airflow guiding device (12).

Description

CROSS REFERENCE TO RELATED APPLICATIONS The present disclosure is the national phase entry of International Patent Application No. PCT/CN2021/112003, filed on August 11, 2021, which claims priority to Chinese Patent Applications No. 202022461190.0, filed on October 29, 2020. BACKGROUND OF THE APPLICATION Technical field of the invention The present invention relates to an aerosol generating device comprising an atomizer. Description of Related Art The aerosol generating device is an electronic product that simulates cigarettes, and it is an alternative vaping device for users to inhale by heating and atomizing the e-liquid. Compared with traditional cigarettes, the aerosol generating devices are easy to use and contain fewer harmful substances. At present, on the market, the aerosol generating device generally has a direct connection between the ventilation hole of the atomizing base and the heating wire. During the atomization process, the condensate directly flows out from the ventilation hole of the atomizing base, and directly flows to the bottom of the atomizing base, which brings great inconvenience to consumers. The aerosol generating device with an airflow switch is one type of the aerosol generating devices, when the airflow passes through the airflow switch, the circuit is turned on, so that the aerosol generating device is very convenient to use. In the existing aerosol generating devices, the airflow switch is generally set at the bottom of the cigarette rod, the flow direction of the airflow is that the airflow enters from the bottom of the cigarette rod, passes through the airflow switch, the battery and the conductive seat, then flows into the atomizer to be mixed with the atomized e-liquid, and is finally inhaled into the user's mouth. The airflow channel of this aerosol generating device is long, and the battery will swell when it is used improperly, which will increase the resistance of the airflow. The user feels difficult when inhaling, and the generated smoke is less. The user experience is not good. For example, documents of CN210929645U and WO2020182068A1 have disclosed an aerosol generating device according to the state of the art. BRIEF SUMMARY OF THE INVENTION The object of the present invention is to overcome the defects of the prior art, and provide an aerosol generating device and an atomizer, which can realize double leakage prevention and can effectively ensure the smoothness of the user's inhalation, and has a good user experience. The present invention provides an aerosol generating device as set out in the appended set of claims. The beneficial effects of the present disclosure are as follows: the axis of the ventilation hole of the atomizing base of this disclosure is located outside the air passage of the sealing device, the bottom wall of the atomizing base is provided with a fence surrounding the outer periphery of the ventilation hole. In this way, it is not a straight-through air intake between the ventilation hole of the atomizing base and the air passage of the sealing device. The airflow flowing out from the ventilation hole of the atomizing base needs to be turned and then enters the atomizing chamber of the atomizing housing through the air passage of the sealing device. During the atomization process, the condensate in the atomizing chamber of the atomizing housing directly flows into the liquid storage cavity of the atomizing base located directly below the atomizing chamber, and will not directly flow into the ventilation cavity, and also will not flow into the bottom of the atomizing base through the ventilation hole, thereby realizing double anti-leakage. In present disclosure, the airflow switch device is installed on the upper end of the battery holder, an air intake hole is provided in the side wall of the battery rod shell to realize air intake, and the air intake hole on the battery rod shell communicates with the upstream end of the air intake channel of the airflow guiding device through the airflow switch device. Thus, the air intake in this solution is not affected by the battery assembly inside the battery rod, and the air intake channel of the aerosol generating device is relatively short, which can effectively ensure the smoothness of the user's inhalation and provide a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative effort. FIG. 1 is an exploded schematic view of the aerosol generating device of the present disclosure; FIG. 2 is an outline drawing of the ae