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EP-4136989-B1 - ELECTRICALLY-HEATED AEROSOL PRODUCING APPARATUS

EP4136989B1EP 4136989 B1EP4136989 B1EP 4136989B1EP-4136989-B1

Inventors

  • LIAO, Yancheng
  • ZHANG, XINGFU

Dates

Publication Date
20260513
Application Date
20210330

Claims (10)

  1. An electrically-heated aerosol generating device (10) configured to heat an aerosol generating substrate, the electrically-heated aerosol generating device(10) comprising: a power supply assembly(12); and an aerosol generating assembly (11) connected to the power supply assembly (12), an end of the aerosol generating assembly (11) adjacent to the power supply assembly (12) provided with an air inlet channel (101), wherein the aerosol generating assembly (11) comprises an upper cover (100) and an accommodating element (200) received in the upper cover (100), the accommodating element (200) is provided with an accommodating cavity (223) configured to accommodate the aerosol generating substrate, and the air inlet channel (101) extends through the upper cover (100) and the accommodating element (200); wherein the aerosol generating assembly (11) further comprises a partition cover (300) accommodated in the upper cover (100), and the partition cover (300) surrounds the accommodating cavity (223), the air inlet channel (101) further extends through the partition cover (300); wherein the accommodating element (200) comprises an outer sleeve (210) and an inner tube (220) that are connected to each other, the inner tube (220) is accommodated in the outer sleeve (210), and the accommodating cavity (223) is provided in the inner tube (220), a mounting hole (310) is provided in the partition cover (300), the inner tube (220) is matched with the mounting hole (310), and a space between the outer sleeve (210) and the inner tube (220) accommodates the partition cover (300); and wherein the aerosol generating assembly (11) further comprises a heating element (510) electrically connected to the power supply assembly (12) and configured to be inserted in the aerosol generating substrate, the inner tube (220) comprises a barrel (221) and a bottom plate (222) that are connected to each other, the barrel (221) and the bottom plate (222) cooperatively enclose the accommodating cavity (223), the bottom plate (222) is provided with an inserting hole (222c) in communication with the accommodating cavity (223), and the heating element (510) extends through the inserting hole (222c) to enable a part of the heating element (510) to be accommodated in the accommodating cavity (223); characterized in that a bottom wall of the mounting hole (310) abuts against the barrel (221) of the inner tube (220).
  2. The electrically-heated aerosol generating device(10) according to claim 1, wherein a buffer channel (224a) is formed between the partition cover (300) and the inner tube (220), the buffer channel (224a) is in communication both with the air inlet channel (101) and the inserting hole (222c).
  3. The electrically-heated aerosol generating device (10) according to claim 2, wherein the bottom plate (222) is located in a cavity enclosed by the barrel (221), and the bottom plate (222) divides the cavity into a buffer cavity (224) and the accommodating cavity (223), the barrel (221) is provided with a first air inlet hole (221a) that forms a part of the air inlet channel (101), the partition cover (300) abuts against the barrel (221) and closes the buffer cavity (224) to form the buffer channel (224a).
  4. The electrically-heated aerosol generating device (10) according to claim 2, wherein a surface of the bottom plate (222) configured to support the aerosol generating substrate is recessed to form a groove (222b), and the groove (222b) is in communication with the inserting hole (222c).
  5. The electrically-heated aerosol generating device (10) according to claim 1, wherein the bottom plate (222) is connected to an end of the barrel (221) to enable all of the cavity enclosed by the barrel (221) to form the accommodating cavity (223), the inner tube (220) further comprises a protrusion (230) located in the accommodating cavity (223), the aerosol generating substrate is capable of abutting against the protrusion (230) to seal a part of the accommodating cavity (223) to form a buffer channel (224a), the barrel (221) is provided with a first air inlet hole e (221a) that forms a part of the air inlet channel (101), the buffer channel (224a) is in communication both with the first air inlet hole (221a) and the inserting hole (222c).
  6. The electrically-heated aerosol generating device (10) according to claim 5, wherein the protrusion (230) is provided on the bottom plate (222), and the protrusion (230) protrudes relative to a surface of the bottom plate (222).
  7. The electrically-heated aerosol generating device (10) according to claim 1, wherein the aerosol generating assembly (11) further comprises a sealing element (400), the partition cover (300) is provided with a through hole (320) in communication with the mounting hole (310), and the sealing element(400) is filled in the through hole (320) to seal the mounting hole (310), and the heating element (510) extends through the sealing element (400).
  8. The electrically-heated aerosol generating device (10) according to claim 1, wherein the barrel (221) is provided with a first air inlet hole (221a), the outer sleeve (210) is provided with a second air inlet hole (211), the partition cover (300) is provided with a third air inlet hole (330) in communication with the mounting hole (310), the upper cover (100) is provided with a fourth air inlet hole (110) in communication with external atmosphere, and the first air inlet hole (221a), the second air inlet hole (211), the third air inlet hole (330), and the fourth air inlet hole (110) cooperatively form the air inlet channel (101).
  9. The electrically-heated aerosol generating device (10) of claim 1, wherein at least a part of the partition cover (300) is accommodated in the accommodating element (200).
  10. The electrically-heated aerosol generating device (10) according to claim 1, wherein the aerosol generating assembly (11) further comprises a fixing base (520) below the mounting hole (310), and the heating element (510) is inserted into the fixing base (520) and is electrically connected the power supply assembly (12).

Description

TECHNICAL FIELD The present invention relates to a technical field of generating aerosol, in particular to an electrically-heated aerosol generating device. BACKGROUND Electrically-heated aerosol generating devices can heat a solid-state aerosol generating substrate such as a cigarette in a heat-not-burn manner, thereby generating smoke that can be inhaled by a user. The electrically-heated aerosol generating device generally includes a power supply assembly, a heating element and an accommodating element. The aerosol generating substrate is received in the accommodating element. The power supply assembly supplies power to the heating element, the heating element converts electrical energy into heat, and the aerosol generating substrate absorbs the heat to be atomized to form smoke. Generally, in a conventional electrically-heated aerosol generating device, an air inlet channel is provided in the power supply assembly, and ambient air enters the accommodating element through the air inlet channel, thereby carrying smoke to be inhaled by the user. However, a path of the air inlet channel is long, which is prone to be blocked and also makes a structural of the electrically-heated aerosol generating device too complicated. EP 3 610 741 A1 discloses an aerosol generating device including a hollow casing comprising a path for accommodating a cigarette, an opening open to the outside at one end of the path such that the cigarette is inserted into the opening from the outside, a through hole connected to the other end of the path, and a protrusion protruding from the path to contact a portion of an outer surface of the cigarette. The aerosol generating device further includes a heater having one side end portion passing through the through hole and arranged inside the path to be inserted into the cigarette accommodated in the path, the heater being configured to heat the cigarette when electricity is applied. CN 207 836 767 U discloses an aerosol generating device which is easy to clean and convenient to use. CN 110 574 968 A discloses an electronic baking device comprising an extractor and a heater; the extractor includes a baking member, and the baking member is enclosed as an accommodating cavity for accommodating an aerosol generating substrate. The heater further includes a power source assembly, and a first heating element and a second heating element arranged on the power source assembly. Through providing the second heating element, the residual material on the first heating element can be removed to achieve cleaning of the first heating element. SUMMARY The invention is set out in the appended set of claims. Embodiments of the disclosure are presented for illustrative purposes only; they do not necessarily include all the features required by claim 1 and therefore do not necessarily form part of the invention, but serve to facilitate understanding of the invention. According to embodiments of the disclosure, an electrically-heated aerosol generating device is provided. An electrically-heated aerosol generating device is configured to heat an aerosol generating substrate, the electrically-heated aerosol generating device includes: a power supply assembly; an end of the aerosol generating assembly adjacent to the power supply assembly provided with an air inlet channel, wherein the aerosol generating assembly includes an upper cover and an accommodating element received in the upper cover, the accommodating element is provided with an accommodating cavity configured to accommodate the aerosol generating substrate, and the air inlet channel extends through the upper cover and the accommodating element. In an embodiment, the aerosol generating assembly further includes a partition cover accommodated in the upper cover, and the partition cover surrounds the accommodating cavity, the air inlet channel further extends through the partition cover. In an embodiment, the accommodating element includes an outer sleeve and an inner tube that are connected to each other, the inner tube is accommodated in the outer sleeve, and the accommodating cavity is provided in the inner tube, a mounting hole is provided in the partition cover, the inner tube is matched with the mounting hole, and a space between the outer sleeve and the inner tube accommodates the partition cover. In an embodiment, the aerosol generating assembly further comprises a heating element electrically connected to the power supply assembly and configured to be inserted in the aerosol generating substrate, the inner tube comprises a barrel and a bottom plate that are connected to each other, the barrel and the bottom plate cooperatively enclose the accommodating cavity, the bottom plate is provided with an inserting hole in communication with the accommodating cavity, and the heating element extends through the inserting hole to enable a part of the heating element to be accommodated in the accommodating cavity. In an embodiment, a buffer channel is form