CN-122028820-A - Aerosol generating device

Abstract

An aerosol-generating device comprises an aerosol generator to generate an aerosol, a channel through which air supplied to or generated from the aerosol generator flows, and a sensor arranged in the channel to close at least a portion of the channel and to generate a signal when the flow of air or aerosol through the channel is at least partially deformed.

Inventors

• LI YUANJING
• YIN SHENGYU

Assignees

• 韩国烟草人参公社

Dates

Publication Date

20260512

Application Date

20250625

Priority Date

20240904

Claims (15)

1. 1. An aerosol-generating device comprising: An aerosol generator that generates an aerosol; a passage through which air supplied to or aerosol generated from the aerosol generator flows, and A sensor is disposed in the channel to close at least a portion of the channel and generate a signal when the flow of air or aerosol through the channel is at least partially deformed.
2. 2. An aerosol-generating device according to claim 1, wherein the sensor comprises: a deformation part capable of being deformed by the flow of air or aerosol flowing through the passage, and A resistance portion disposed at the deformation portion and having a resistance that varies as the resistance portion deforms together with the deformation portion.
3. 3. An aerosol-generating device according to claim 2, wherein the deformation is deformed by the flow of air or aerosol through the channel, thereby opening the channel, and when the deformation is restored, the channel is closed.
4. 4. An aerosol-generating device according to claim 1, wherein the sensor comprises: A plurality of deformation parts deformed by the flow of air or aerosol flowing through the channels, and A resistance portion disposed at least one of the plurality of deformation portions and having a resistance that varies as the resistance portion deforms with the at least one of the plurality of deformation portions.
5. 5. An aerosol-generating device according to claim 1, wherein the sensor comprises: A terminal located on a wall of the channel, and A deformation portion deformed by the flow of air or aerosol flowing through the passage, and then electrically connected to or separated from the terminal.
6. 6. An aerosol-generating device according to claim 1, wherein the sensor comprises: a mesh portion disposed in the passage and having a plurality of holes for air or aerosol to pass therethrough, deformed by the flow of air or aerosol, and A resistive portion disposed at the mesh portion and having a resistance that varies as the resistive portion deforms with the mesh portion.
7. 7. An aerosol-generating device according to claim 1, wherein the sensor comprises: A mesh portion disposed in the channel and made of a conductive material, and A deformation portion deformed by the flow of air or aerosol, and then electrically connected to or electrically separated from the mesh portion.
8. 8. An aerosol-generating device according to claim 7, wherein the deformation portion is configured to be electrically connected to the mesh portion to generate an electrical signal.
9. 9. An aerosol-generating device according to claim 7, wherein the sensor further comprises a detection portion for detecting the resistance of the deformation portion, wherein the resistance of the deformation portion detected by the detection portion varies as the deformation portion is electrically connected to the mesh portion.
10. 10. An aerosol-generating device according to claim 1, wherein the sensor comprises: A deformation portion disposed at one region of the passage and deformed by a flow of air or aerosol; terminals arranged in other regions of the channels, and A connection terminal disposed at the deformation portion and electrically connected to or separated from the terminal along with deformation of the deformation portion.
11. 11. An aerosol-generating device according to claim 1, wherein the sensor comprises: a moving part arranged to be movable in the passage by a flow of air or aerosol in the passage, and And a signal generating part connected to the moving part and deformed by movement of the moving part to generate a signal.
12. 12. An aerosol-generating device according to claim 1, wherein the aerosol-generator comprises a generation chamber in which an aerosol is generated, The aerosol-generating device further comprises a mouthpiece for expelling aerosol to the outside, One end of the channel is connected to the generation chamber, and the other end of the channel is connected to the mouthpiece, and At least a portion of the sensor is deformed by the flow of air or aerosol to open the channel and when the flow of air or aerosol in the channel ceases, the at least a portion of the sensor closes the channel to block the flow of liquid droplets into the generation chamber.
13. 13. An aerosol-generating device according to claim 1, wherein the aerosol-generator comprises a generation chamber in which an aerosol is generated, and One end of the passage is connected to the generation chamber, and the other end of the passage is connected to the outside, so that outside air is delivered to the generation chamber through the passage.
14. 14. An aerosol-generating device according to claim 1, wherein the aerosol-generator comprises a heater for heating the aerosol-generating substance, The aerosol-generating device further comprises a controller for controlling the operation of the heater, and The controller detects that an inhalation has occurred based on the signal of the sensor, and starts operation of the heater when the inhalation has occurred.
15. 15. An aerosol-generating device according to claim 1, wherein the aerosol-generator comprises a heater for heating the aerosol-generating substance, The aerosol-generating device further comprises a controller for controlling the operation of the heater based on a predetermined temperature profile, and The controller changes the temperature profile based on the signals of the sensors to control operation of the heater.

Description

Aerosol generating device Technical Field Embodiments relate to aerosol-generating devices and, more particularly, to aerosol-generating devices capable of directly, quickly and accurately detecting a flow change of air or aerosol flowing through a channel. Background Recently, there has been an increasing demand for alternative methods of overcoming the disadvantages of conventional cigarettes. For example, there is an increasing demand for systems that generate aerosols by heating cigarettes or aerosol-generating substances using aerosol-generating devices, rather than by burning the cigarettes. To control the operation of the aerosol-generating device, the aerosol-generating device may comprise a sensor. For example, when the aerosol-generating device comprises a temperature sensor, the aerosol-generating device may detect the heater or a change in temperature around the heater. As another example, where the aerosol-generating device comprises a puff sensor for detecting a puff of a user, operation of the aerosol-generating device may be controlled based on the puff of the inhaled aerosol by the user. Disclosure of Invention Technical problem An aerosol-generating device comprising a temperature sensor or a puff sensor may utilize signal information relating to a temperature or a user's puff which is related to the operation of the aerosol-generating device. However, the signal information related to the temperature or the sucking action of the user is not signal information that directly detects the flow of aerosol generated by the aerosol-generating device and delivered to the user. For aerosol-generating devices, it is important that the device operates efficiently in response to the various environments in which the aerosol-generating device is used and the various types of users that use the aerosol-generating device. For efficient operation of an aerosol-generating device, an aerosol-generating device capable of directly detecting the flow of aerosol is needed. Embodiments seek to provide aerosol-generating devices that are operable based on signal information directly related to the flow of aerosol generated by the aerosol-generating device. The problems to be solved by the embodiments of the present disclosure are not limited to the above-described problems, and the above-described non-mentioned problems can be clearly understood by those of ordinary skill in the art to which the embodiments belong from the present specification and drawings. Additional aspects will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments provided by the disclosure. Technical proposal An aerosol-generating device according to an embodiment of an aspect comprises an aerosol generator for generating an aerosol, a channel through which air supplied to or generated from the aerosol generator flows, and a sensor arranged in the channel to close at least a part of the channel and to generate a signal by at least partial deformation of the flow of air or aerosol in the channel. The sensor may comprise a deformation portion which is deformable by the flow of air or aerosol through the channel. The sensor may further include a resistance portion disposed at the deformation portion and having a resistance that varies as the resistance portion deforms together with the deformation portion. The deformation may be deformed by the flow of air or aerosol through the channel, thereby opening the channel. The deformation may resume such that the channel is closed. The sensor may include a plurality of deformation portions deformed by the flow of air or aerosol flowing through the channel. The sensor may further include a resistive portion disposed at least one of the plurality of deformed portions. The resistance portion may have a resistance that varies as the resistance portion deforms with at least one of the plurality of deformation portions. The sensor may include terminals located on the wall of the channel. The sensor may further include a deformation portion. The deformation may be deformed by the flow of air or aerosol through the passage. The deformation may be electrically connected to or separated from the terminal. The sensor may comprise a mesh. The mesh may be disposed within the channel. The mesh portion may have a plurality of holes through which air or aerosol passes. The mesh portion may be deformed by the flow of air or aerosol. The sensor may further include a resistive portion. The resistive portion may be disposed at the mesh portion. The resistive portion may be deformed together with the mesh portion, so the resistive portion may have a varying resistance. The sensor may include a mesh portion that is a conductive material. The mesh may be disposed within the channel. The sensor may further include a deformation portion. The deformation portion is deformable by the flow of air or aerosol. The deformation portion may