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EP-4736682-A1 - ELECTRONIC ATOMIZATION DEVICE

EP4736682A1EP 4736682 A1EP4736682 A1EP 4736682A1EP-4736682-A1

Abstract

The present application relates to an electronic atomization device, including: a first liquid storage chamber provided with a liquid storage member therein; an atomizing core in fluid communication with the liquid storage member; a second liquid storage chamber; a replenishment channel in communication with the first liquid storage chamber and the second liquid storage chamber; and an electronic control switch assembly configured to open the replenishment channel when powered on and close the replenishment channel when powered off. In the present application, by additionally providing a second liquid storage chamber to replenish the first liquid storage chamber, the volume of the liquid storage member in the first liquid storage chamber can be reduced, thereby enhancing the actual utilization efficiency of the aerosol generating substrate and reducing liquid leakage. In addition, the atomizing core is kept at a distance from the second liquid storage chamber without being directly in fluid communication therewith, which helps reduce the likelihood of the aerosol generating substrate in the second liquid storage chamber being affected by heat and prevents contamination of the aerosol generating substrate in the second liquid storage chamber.

Inventors

  • HUANG, HUI
  • XIA, Chang
  • WU, JIANQING
  • ZHOU, YU

Assignees

  • Shenzhen Smoore Technology Limited

Dates

Publication Date
20260506
Application Date
20251031

Claims (15)

  1. An electronic atomization device, comprising: a first liquid storage chamber (11) provided with a liquid storage member (111) therein; an atomizing core (20) in fluid communication with the liquid storage member (111); a second liquid storage chamber (12); a replenishment channel (13) in communication with the first liquid storage chamber (11) and the second liquid storage chamber (12); and an electronic control switch assembly (30) configured to open the replenishment channel (13) when powered on and close the replenishment channel (13) when powered off.
  2. The electronic atomization device of claim 1, wherein the liquid storage space of the first liquid storage chamber (11) is smaller than the liquid storage space of the second liquid storage chamber (12).
  3. The electronic atomization device of claim 1, further comprising a control module, wherein the electronic control switch assembly (30) comprises a drive assembly (31) connected to the control module and a valve assembly (32) connected to the drive assembly (31), the drive assembly (31) comprising an actuating member (310) made of shape memory material.
  4. The electronic atomization device of claim 3, wherein the actuating member (310) is a spring made of a shape memory alloy (SMA), and the actuating member (310) elongates when electrically heated to drive the valve assembly (32) to move and open the replenishment channel (13).
  5. The electronic atomization device of claim 4, wherein the drive assembly (31) further comprises a first connecting member (311) and a second connecting member (312), the first connecting member (311) being disposed through the second connecting member (312) in an insulated manner and movable back and forth relative to the second connecting member (312), and the actuating member (310) being sleeved over the first connecting member (311), and two ends of the actuating member (310) being connected to the first connecting member (311) and the second connecting member (312), respectively.
  6. The electronic atomization device of claim 3, wherein the valve assembly (32) comprises a valve (321) connected to the drive assembly (31) and an elastic element (323) connected to the valve (321), the elastic element (323) being configured to provide an elastic restoring force to return the valve (321) from a state in which the replenishment channel (13) is opened to a state in which the replenishment channel (13) is closed.
  7. The electronic atomization device of claim 3, wherein the control module is configured to supply power to the electronic control switch assembly (30) when the accumulated atomization time reaches a preset threshold.
  8. The electronic atomization device of claim 3, wherein the electronic atomization device comprises a housing (10), the housing (10) being partitioned to form a first space (1410) located at the lower portion and a second space (1420) located at the upper portion, the first liquid storage chamber (11), the atomizing core (20), and the control module being located in the first space (1410), and the second liquid storage chamber (12) being located in the second space (1420).
  9. The electronic atomization device of claim 8, wherein the electronic atomization device further comprises a battery (40) arranged in the first space (1410).
  10. The electronic atomization device of any one of claims 1 to 9, wherein after the replenishment channel (13) is opened, aerosol generating substrate in the second liquid storage chamber (12) flows to the first liquid storage chamber (11) under the action of gravity.
  11. The electronic atomization device of any one of claims 3 to 10, wherein the control module is configured to automatically cut off supplying power to the drive assembly (31) after the drive assembly (31) has been powered for a preset duration.
  12. The electronic atomization device of any one of claims 1 to 11, wherein during the manufacturing stage, the liquid storage member (111) in the first liquid storage chamber (11) is not pre-filled with the aerosol generating substrate.
  13. The electronic atomization device of any one of claims 1 to 12, wherein the atomizing core (20) includes a liquid-absorbing element (21) in fluid communication with the first liquid storage chamber (11), and a heating element (22) in contact with the liquid-absorbing element (21), wherein preferably, the liquid-absorbing capacity of the liquid-absorbing element (21) is greater than the liquid-absorbing capacity of the liquid storage member (111).
  14. The electronic atomization device of any one of claims 1 to 13, wherein the atomizing core (20) and the second liquid storage chamber (12) are disposed non-coaxially, thereby maintaining a distance between the atomizing core (20) and the second liquid storage chamber (12).
  15. The electronic atomization device of any one of claims 1 to 14, wherein the electronic atomization device (1) includes a supporting sealing member (60) capable of sealing a lower end of the first liquid storage chamber (11) to prevent liquid leakage; wherein preferably, the supporting sealing member (60) includes a main body portion (61), a sealing support portion (63), and a connecting portion (62) that connects the main body portion (61) to the sealing support portion (63); wherein preferably, the sealing support portion (63) is configured to move back and forth relative to the main body portion (61).

Description

TECHNICAL FIELD The present application relates to the field of atomization technology, and more particularly, to an electronic atomization device. BACKGROUND Currently, mainstream electronic atomization devices on the market have a relatively small liquid storage capacity, typically around 2 mL. However, during use, users often overlook the remaining amount of the aerosol generating substrate, which may result in overheating and damage to an atomizing core. To address the above problem, large-capacity electronic atomization devices have been introduced to the market, increasing the storage capacity of the aerosol generating substrate to reduce or eliminate the need for frequent replenishment of the aerosol generating substrate. However, as the capacity of the aerosol generating substrate increases, the risk of liquid leakage correspondingly increases significantly. In addition, since the atomizing core is directly connected to a liquid storage chamber, heat generated during inhalation is transferred to the aerosol generating substrate in the liquid storage chamber, thereby increasing the temperature of the aerosol generating substrate. The temperature rise may accelerate the volatilization of certain components in the aerosol generating substrate, affecting the final taste experience and causing the flavor to weaken or change. Moreover, large-capacity (e.g., > 10 mL) electronic atomization devices on the market generally use liquid storage cotton. Due to the storage function of the liquid storage cotton for the aerosol generating substrate, only about 75% of the aerosol generating substrate is used in devices using liquid storage cotton, with the remaining 25% wasted, resulting in a relatively low utilization rate of the aerosol generating substrate. SUMMARY The technical problem to be solved by the present application is to provide an improved electronic atomization device in view of the above shortcomings of the prior art. The technical solution adopted by the present application to solve the technical problem is as follows: An electronic atomization device is provided, including: a first liquid storage chamber provided with a liquid storage member therein; an atomizing core in fluid communication with the liquid storage member; a second liquid storage chamber; a replenishment channel in communication with the first liquid storage chamber and the second liquid storage chamber; and an electronic control switch assembly configured to open the replenishment channel when powered on and close the replenishment channel when powered off. In some embodiments, the liquid storage space of the first liquid storage chamber is smaller than the liquid storage space of the second liquid storage chamber. In some embodiments, the electronic atomization device includes a control module, where the electronic control switch assembly includes a drive assembly connected to the control module and a valve assembly connected to the drive assembly, the drive assembly including an actuating member made of shape memory material. In some embodiments, the actuating member is a spring made of a shape memory alloy (SMA), and the actuating member elongates when electrically heated to drive the valve assembly to move and open the replenishment channel. In some embodiments, the drive assembly further includes a first connecting member and a second connecting member, the first connecting member being disposed through the second connecting member in an insulated manner and movable back and forth relative to the second connecting member, andthe actuating member being sleeved over the first connecting member, and two ends of the actuating member being connected to the first connecting member and the second connecting member, respectively. In some embodiments, the valve assembly includes a valve connected to the drive assembly and an elastic element connected to the valve, the elastic element being configured to provide an elastic restoring force to reset the valve from a state in which the replenishment channel is opened to a state in which the replenishment channel is closed. In some embodiments, the control module is configured to supply power to the electronic control switch assembly when the accumulated atomization time reaches a preset threshold. In some embodiments, the electronic atomization device includes a housing, the housing being partitioned to form a first space located at the lower portion and a second space located at the upper portion, the first liquid storage chamber, the atomizing core, and the control module being located in the first space, and the second liquid storage chamber being located in the second space. In some embodiments, the electronic atomization device further includes a battery arranged in the first space. In some embodiments, after the replenishment channel is opened, aerosol generating substrate in the second liquid storage chamber flows to the first liquid storage chamber under the action of gravity. The