CN118102914A

CN118102914A - Aerosol generating device

Info

Publication number: CN118102914A
Application number: CN202280069124.8A
Authority: CN
Inventors: 曺炳盛; 李宗燮; 朴相珪; 郑禹锡; 韩大男
Original assignee: KT&G Corp
Current assignee: KT&G Corp
Priority date: 2021-10-20
Filing date: 2022-10-14
Publication date: 2024-05-28

Abstract

An aerosol-generating device is provided. The aerosol-generating device comprises: a housing; a heater for heating the aerosol-generating substance; a battery for supplying power to the heater; and a temperature switch for switching an electrical connection between the heater and the battery, wherein the temperature switch includes a first switch terminal and a second switch terminal, the first switch terminal is positioned to be electrically coupled to the first heater terminal of the heater, the second switch terminal is positioned to be electrically coupled to the first battery terminal of the battery, wherein the temperature switch bends in a direction when the temperature switch is heated to or above a first temperature, and wherein after the temperature switch bends in the direction, the first switch terminal is spaced apart from the first heater terminal to electrically disconnect the first switch terminal from the first heater terminal.

Description

Aerosol generating device

Technical Field

The present disclosure relates to an aerosol-generating device.

Background

An aerosol-generating device is a device that extracts certain components from a medium or substance by generating an aerosol. The medium may comprise a multicomponent material. The substance contained in the medium may be a multi-component flavouring substance. For example, the substance contained in the medium may include a nicotine component, an herbal component, and/or a coffee component. Recently, various researches have been conducted on aerosol generating devices.

Disclosure of Invention

Technical problem

It is an object of the present disclosure to address the above and other problems.

It is another object of the present disclosure to provide an aerosol-generating device that may cut off power to a heater based on a remaining amount of aerosol-generating substance.

It is a further object of the present disclosure to provide an aerosol-generating device that can prevent overheating of a heater when the remaining amount of aerosol-generating substance is insufficient.

Technical proposal

According to one aspect of the subject matter described in the present application, an aerosol-generating device comprises: a housing; a heater configured to heat an aerosol-generating substance; a battery configured to supply power to the heater; and a temperature switch configured to switch an electrical connection between the heater and the battery, wherein the temperature switch comprises: a first switch terminal positioned to be electrically coupled to a first heater terminal of the heater; and a second switch terminal positioned to be electrically coupled to a first battery terminal of the battery, wherein the temperature switch bends in a direction when the temperature switch is heated to or above a first temperature, and wherein the first switch terminal is spaced apart from the first heater terminal to electrically disconnect the first switch terminal from the first heater terminal after the temperature switch bends in the direction.

According to another aspect of the subject matter described in the present application, an aerosol-generating device comprises: a heater configured to heat an aerosol-generating substance; a battery configured to supply power to the heater to enable the heater to heat the aerosol-generating substance; a temperature switch configured to switch an electrical connection between the heater and the battery; a housing shaped to include the heater, the battery, and the temperature switch, wherein the temperature switch includes: a first switch terminal electrically coupled to a first heater terminal of the heater when the temperature switch is in a first orientation; and a second switch terminal positioned to be electrically coupled to a first battery terminal of the battery when the temperature switch is in the first orientation, wherein the temperature switch flexes relative to the first orientation when the temperature switch is heated beyond a temperature threshold, and wherein the first switch terminal is spaced apart from the first heater terminal to electrically decouple the first switch terminal from the first heater terminal when the temperature switch flexes.

Advantageous effects of the invention

According to at least one of the embodiments of the present disclosure, the power supply to the heater may be cut off based on the remaining amount of the aerosol-generating substance.

According to at least one of the embodiments of the present disclosure, overheating of the heater may be prevented when the remaining amount of the aerosol-generating substance is insufficient.

Additional areas of applicability of the present disclosure will become apparent from the detailed description provided hereinafter. However, those skilled in the art will appreciate that various modifications and changes are possible without departing from the spirit and scope of the present disclosure, and thus it is to be understood that the detailed description and specific embodiments (e.g., preferred embodiments of the present disclosure) are provided for illustration only.

Drawings

Fig. 1 is a block diagram illustrating an example of an aerosol-generating device.

Fig. 2 to 4 are diagrams referenced to describe an example of an aerosol-generating device.

Fig. 5 to 7 are diagrams referenced to describe examples of bars.

Fig. 8 is a diagram showing an example of the structure of the aerosol-generating device.

Fig. 9 to 14 are diagrams referenced to describe an example of an aerosol-generating device.

Detailed Description

The description will now be given in detail according to exemplary embodiments disclosed herein with reference to the accompanying drawings. For purposes of brief description with reference to the drawings, the same or equivalent parts are provided with the same or similar reference numerals, and the description thereof will not be repeated.

In the following description, suffixes such as "module" and "unit" may be used to refer to elements or components. Such suffixes are used herein merely for ease of description of the specification and are not themselves intended to be given any particular meaning or function.

In the present disclosure, what is well known to those of ordinary skill in the relevant art is generally omitted for brevity. The drawings are to aid in easy understanding of the technical concept of the present disclosure, and it should be understood that the concept of the present disclosure is not limited by the drawings. The conception of the present disclosure should be construed as extending to any modifications, equivalents, and alternatives other than the drawings.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.

It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. On the other hand, when one component is referred to as being "directly connected to" or "directly coupled to" another component, there are no intervening components present.

As used herein, the singular shall also include the plural unless the context clearly indicates otherwise.

Fig. 1 is a block diagram of an aerosol-generating device according to an embodiment of the disclosure.

Referring to fig. 1, the aerosol-generating device 10 may comprise a communication interface 11, an input/output interface 12, an aerosol-generating module 13, a memory 14, a sensor module 15, a battery 16 and/or a controller 17.

In one embodiment, the aerosol-generating device 10 may be composed of only the body 100. In this case, the components included in the aerosol-generating device 10 may be provided in the main body 100. In another embodiment, the aerosol-generating device 10 may be comprised of a cartridge 200 containing an aerosol-generating substance and a body 100. In this case, the components included in the aerosol-generating device 10 may be provided in at least one of the body 100 and the cartridge 200.

The communication interface 11 may include at least one communication module for communicating with external devices and/or networks. For example, the communication interface 11 may include a communication module for wired communication, such as a Universal Serial Bus (USB). For example, the communication interface 11 may comprise a communication module for wireless communication, such as wireless fidelity (Wi-Fi), bluetooth Low Energy (BLE), zigBee, or Near Field Communication (NFC).

Input/output interface 12 may include input devices for receiving commands from a user and/or output devices for outputting information to a user. For example, the input device may include a touch pad, physical buttons, a microphone, and the like. For example, the output means may include a display means (e.g., a display or a Light Emitting Diode (LED)) for outputting visual information, an audio means (e.g., a speaker or buzzer) for outputting audible information, a motor (e.g., a haptic effect) for outputting haptic information, etc

The input/output interface 12 may transmit data corresponding to commands entered by a user through the input device to another component (or other component) of the aerosol-generating device 10. The input/output interface 12 may output information corresponding to data received from another component (or other component) of the aerosol-generating device 10 via an output device.

The aerosol-generating module 13 may generate an aerosol from an aerosol-generating substance. Here, the aerosol-generating substance may be a substance in a liquid, solid or gel state that can generate an aerosol, or a combination of two or more aerosol-generating substances.

In one embodiment, the liquid aerosol-generating substance may be a liquid comprising a tobacco-containing material having a volatile tobacco flavor component. In another embodiment, the liquid aerosol-generating substance may be a liquid comprising a non-tobacco material. For example, the liquid aerosol-generating substance may comprise water, solvents, nicotine, plant extracts, flavors, flavoring agents, vitamin mixtures, and the like.

The solid aerosol-generating substance may comprise a solid material based on a tobacco raw material, such as reconstituted tobacco sheet, shredded tobacco or particulate tobacco. In addition, the solid aerosol-generating substance may comprise a solid material having a taste controlling agent and a flavouring material. For example, the taste control agent may include calcium carbonate, sodium bicarbonate, calcium oxide, and the like. For example, the flavoring material may comprise natural materials such as herbal granules, or may comprise materials comprising aromatic components, such as silica, zeolite or dextrin.

In addition, the aerosol-generating substance may also comprise an aerosol-former, such as glycerol or propylene glycol.

The aerosol-generating module 13 may comprise at least one heater 131.

The aerosol-generating module 13 may comprise a resistive heater. For example, the resistive heater may include at least one conductive track. The resistive heater may be heated by an electrical current flowing through the conductive track. Here, the aerosol-generating substance may be heated by a heated resistive heater.

The conductive track may comprise a resistive material. In one example, the conductive track may be formed from a metallic material. In another example, the conductive track may be formed of a ceramic material, carbon, a metal alloy, or a composite of a ceramic material and a metal.

The resistive heater may include conductive tracks formed in any of a variety of shapes. For example, the conductive track may have any one of a tubular shape, a plate shape, a needle shape, a rod shape, and a coil shape.

The aerosol-generating module 13 may comprise a heater using an induction heating method, i.e. an induction heater. For example, the induction heater may comprise an electrically conductive coil. An induction heater can generate an alternating magnetic field whose direction is periodically changed by adjusting the current flowing through a conductive coil. In this case, when an alternating magnetic field is applied to the magnetic body, energy loss may occur in the magnetic body due to eddy current loss and hysteresis loss, and the lost energy may be released as thermal energy. Thus, the aerosol-generating substance located adjacent to the magnetic body may be heated. Here, an object that generates heat due to a magnetic field may be referred to as a susceptor.

At the same time, the aerosol-generating module 13 may generate ultrasonic vibrations to generate an aerosol from the aerosol-generating substance.

The aerosol-generating module 13 may be referred to as a cartomizer, atomizer or evaporator.

When the aerosol-generating device 10 is constituted by a cartridge 200 containing an aerosol-generating substance and a body 100, the aerosol-generating module 13 may be provided in at least one of the body 100 and the cartridge 200.

The memory 14 may store therein a program for processing and controlling each signal in the controller 17. The memory 14 may store therein data processed by the controller 17 and data to be processed by the controller 17.

For example, the memory 14 may store therein applications designed to perform various tasks that may be handled by the controller 17. For example, the memory 14 may selectively provide some of the stored applications in response to a request from the controller 17.

For example, the memory 14 may store therein data regarding the operating time of the aerosol-generating device 10, the maximum number of puffs, the current number of puffs, at least one temperature profile, inhalation patterns of the user, charge/discharge, etc. Here, "inhalation" may refer to inhalation by a user, and "inhalation" may refer to the act of bringing air or other substances into the user's mouth, nasal cavity, or lungs through the user's mouth or nose.

The memory 14 may include at least one of volatile memory (e.g., dynamic Random Access Memory (DRAM), static Random Access Memory (SRAM), and Synchronous Dynamic Random Access Memory (SDRAM)), nonvolatile memory (e.g., flash memory), a Hard Disk Drive (HDD), and a Solid State Drive (SSD).

The sensor module 15 may include at least one sensor.

For example, the sensor module 15 may include a sensor for sensing suction (hereinafter referred to as a "suction sensor"). Here, the suction sensor may be implemented as a proximity sensor, such as an IR sensor, a pressure sensor, a gyro sensor, an acceleration sensor, a magnetic field sensor, or the like.

For example, the sensor module 15 may include a sensor (hereinafter referred to as "temperature sensor") for sensing the temperature of the heater 131 included in the aerosol-generating module 13 and the temperature of the aerosol-generating substance.

In this case, the heater 131 included in the aerosol-generating module 13 may be used as a temperature sensor. For example, the resistive material of the heater 131 may be a material having a Temperature Coefficient of Resistance (TCR). The sensor module 15 may measure the resistance of the heater 131 according to the temperature change, thereby sensing the temperature of the heater 131.

For example, when a wand can be inserted into the body 100 of the aerosol-generating device 10, the sensor module 15 may include a sensor for sensing insertion of the wand (hereinafter referred to as a "wand detection sensor").

For example, when the aerosol-generating device 10 includes the cartridge 200, the sensor module 15 may include a sensor (hereinafter referred to as a "cartridge detection sensor") for sensing the mounting/removing (or attaching/detaching) of the cartridge 200 to/from the main body 100 and the position of the cartridge 200.

In this case, the rod detection sensor and/or the cartridge detection sensor may be implemented as an inductance-based sensor, a capacitance sensor, a resistance sensor, or a hall IC using the hall effect. In some embodiments, the cartridge detection sensor may include a connection terminal. The connection terminal may be provided in the body 100. When the cartridge 200 is coupled to the body 100, the connection terminal may be electrically connected to an electrode provided in the cartridge 200. The connection terminals may also be used as a cartridge detection sensor. For example, the sensor module 15 may detect the mounting/removal of the cartridge 200 with the body 100/the cartridge 200 from the body 100 based on a current flowing through the connection terminal, a voltage applied to the connection terminal, or the like.

For example, the sensor module 15 may include a voltage sensor for sensing a voltage applied to a component (e.g., the battery 16) disposed in the aerosol-generating device 10 and/or a current sensor for sensing a current.

For example, the sensor module 15 may comprise at least one sensor (hereinafter referred to as "motion sensor") for sensing movement of the aerosol-generating device 10. Here, the motion sensor may be implemented as at least one of a gyro sensor and an acceleration sensor.

The battery 16 may provide power for operation of the aerosol-generating device 10 under the control of the controller 17. The battery 16 may supply power to other components provided in the aerosol-generating device 10. For example, the battery 16 may supply power to the communication module included in the communication interface 11, the output device included in the input/output interface 12, and the heater 131 included in the aerosol-generating module 13.

The battery 16 may be a rechargeable battery or a disposable battery. For example, the battery 16 may be a lithium ion battery or a lithium polymer (Li polymer) battery, but is not limited thereto. For example, when the battery 16 is rechargeable, the charge rate (C-rate) of the battery 16 may be 10C, and the discharge rate (C-rate) thereof may be 10C to 20C. However, the present disclosure is not limited thereto. Further, for stable use, the battery 16 may be designed to retain 80% or more of its original capacity over 2000 full charge and discharge cycles.

The aerosol-generating device 10 may further comprise a battery Protection Circuit Module (PCM), which is a circuit for protecting the battery 16. A battery Protection Circuit Module (PCM) may be disposed adjacent to an upper surface of the battery cell 16. For example, in order to prevent overcharge and overdischarge of the battery 16, a battery Protection Circuit Module (PCM) may cut off an electrical path to the battery 16 when a short circuit occurs in a circuit connected to the battery 16, when an overvoltage is applied to the battery 16, or when an excessive current flows through the battery 16.

The aerosol-generating device 10 may further comprise a charging terminal to which power supplied from the outside is input. For example, the charging terminal may be provided at one side of the body 100 of the aerosol-generating device 10. The aerosol-generating device 10 may use the power supplied through the charging terminal to charge the battery 16. In this case, the charging terminal may be configured as a wired terminal for USB communication, pogo pin, or the like.

The aerosol-generating device 10 may wirelessly receive power supplied from the outside through the communication interface 11. For example, the aerosol-generating device 10 may receive power wirelessly using an antenna included in a communication module for wireless communication. For example, the aerosol-generating device 10 may use wirelessly supplied power to charge the battery 16.

The controller 17 may control the overall operation of the aerosol-generating device 10. The controller 17 may be connected to each of the components provided in the aerosol-generating device 10. The controller 17 may send and/or receive signals to and/or from each of the components, thereby controlling the overall operation of each of the components.

The controller 17 may include at least one processor. The controller 17 may control the overall operation of the aerosol-generating device 10 by a processor included therein. Here, the processor may be a general-purpose processor such as a Central Processing Unit (CPU). In the alternative, the processor may be a special purpose device, such as an Application Specific Integrated Circuit (ASIC) or any other hardware-based processor.

The controller 17 may perform any of a number of functions of the aerosol-generating device 10. For example, the controller 17 may perform any one of a plurality of functions (e.g., a warm-up function, a heating function, a charging function, and a cleaning function) of the aerosol-generating device 10 according to a state of each of the components provided in the aerosol-generating device 10, a user command received through the input/output interface 12, and the like.

The controller 17 may control the operation of each of the components provided in the aerosol-generating device 10 based on data stored in the memory 14. For example, the controller 17 may control such that a predetermined power is supplied from the battery 16 to the aerosol-generating module 13 for a predetermined time based on data (e.g., a temperature profile and an inhalation pattern of a user) stored in the memory 14.

The controller 17 may determine the occurrence or non-occurrence of suction through a suction sensor included in the sensor module 15. For example, the controller 17 may check for temperature changes, flow changes, pressure changes and voltage changes in the aerosol-generating device 10 based on the values sensed by the puff sensor. For example, the controller 17 may determine whether suction has occurred or not according to an inspection result based on a value sensed by the suction sensor.

The controller 17 may control the operation of each of the components provided in the aerosol-generating device 10 in accordance with the number of occurrences or non-occurrences of suction and/or suction. For example, the controller 17 may control the temperature of the heater 131 to be changed or maintained based on a temperature profile stored in the memory 14.

The controller 17 may control such that the power supply to the heater 131 is interrupted according to a predetermined condition. For example, the controller 17 may control such that the power supply to the heater 131 is cut off when the stick is removed, when the cartridge 200 is removed, when the number of times of suction reaches a predetermined maximum number of times of suction, when suction is not sensed for a predetermined time or more, or when the remaining capacity of the battery 16 is less than a predetermined value.

The controller 17 may calculate a remaining capacity (hereinafter referred to as "remaining capacity") with respect to the full capacity of the battery 16. For example, the controller 17 may calculate the remaining amount of the battery 16 based on a value sensed by a voltage sensor and/or a current sensor included in the sensor module 15.

The controller 17 may control such that power is supplied to the heater 131 using at least one of a Pulse Width Modulation (PWM) method and a proportional-integral-derivative (PID) method.

For example, the controller 17 may control such that a current pulse having a predetermined frequency and a predetermined duty ratio is supplied to the heater 131 using a PWM method. In this case, the controller 17 may control the power supplied to the heater 131 by adjusting the frequency and the duty ratio of the current pulses.

For example, the controller 17 may determine the target temperature to be controlled based on the temperature profile. In this case, the controller 17 may control the power supplied to the heater using a PID method, which is a feedback control method using a difference between the temperature of the heater 131 and the target temperature, a value obtained by integrating the difference with respect to time, and a value obtained by differentiating the difference with respect to time.

For example, the controller 17 may control the power supplied to the heater 131 based on a temperature profile. The controller 17 may control the length of a heating section for heating the heater 131, the amount of electricity supplied to the heater 131 during the heating section, and the like. The controller 17 may control the power supplied to the heater 131 based on the target temperature of the heater 131.

Although the PWM method and the PID method are described as exemplary methods of controlling power supply to the heater 131, the present disclosure is not limited thereto. Other various control methods, such as a Proportional Integral (PI) method and a Proportional Derivative (PD) method, may also be used.

The controller 17 may determine the temperature of the heater 131, and may adjust the amount of electricity supplied to the heater 131 according to the temperature of the heater 131. For example, the controller 17 may determine the temperature of the heater 131 by checking the resistance value of the heater 131, the current flowing through the heater 131, and/or the voltage applied to the heater 131.

Meanwhile, the controller 17 may control such that power is supplied to the heater 131 according to a predetermined condition. For example, when a cleaning function for cleaning a space into which a rod is inserted is selected according to a command input by a user through the input/output interface 12, the controller 17 may control such that a predetermined power is supplied to the heater 131.

Fig. 2 to 4 are diagrams for explaining an aerosol-generating device according to an embodiment of the present disclosure.

According to various embodiments of the present disclosure, the aerosol-generating device 10 may comprise a body 100 and/or a cartridge 200.

Referring to fig. 2, the aerosol-generating device 10 according to this embodiment may comprise a body 100, the body 100 being configured to allow insertion of the rod 20 into a space defined by its housing 101.

Rod 20 may resemble a typical combustion cigarette. For example, the rod 20 may be divided into a first portion comprising aerosol-generating substance and a second portion comprising a filter or the like. Alternatively, the second portion of the rod 20 may also comprise an aerosol-generating substance. For example, an aerosol-generating substance made in the form of particles or capsules may be inserted into the second portion.

The entire first portion may be inserted into the aerosol-generating device 10 and the second portion may be exposed to the outside. Alternatively, only a portion of the first part may be inserted into the aerosol-generating device 10, or portions of the first and second parts may be inserted into the aerosol-generating device 10. The user may inhale the aerosol while holding the second portion in his or her mouth. When external or ambient air passes through the first portion, an aerosol may be generated, and the generated aerosol may pass through the second portion for delivery to the mouth of the user.

The main body 100 may have a structure allowing external air to be introduced thereinto in the case of inserting the stick 20. Here, the external air introduced into the main body 100 may pass through the stick 20 to flow into the mouth of the user.

The heater may be provided in the body 100 at a position corresponding to a position where the rod 20 is inserted into the body 100. Although the heater in fig. 2 is shown as a conductive heater 110 including a needle-shaped conductive track, the present disclosure is not limited thereto.

The heater may heat the inside and/or outside of the rod 20 by using power supplied from the battery 16. In this case, an aerosol may be generated in the heated rod 20. Here, the user may draw on one end of the rod 20 with his or her mouth to inhale the tobacco-flavored aerosol.

Meanwhile, according to a predetermined condition, the controller 17 may control such that power is supplied to the heater even when the stick 20 is not inserted into the body 100. For example, when a cleaning function for cleaning a space into which the rod 20 is inserted is selected according to a command input by a user through the input/output interface 12, the controller 17 may control to supply a predetermined power to the heater.

The controller 17 may monitor the number of times of suction based on a value sensed by the suction sensor when the stick 20 is inserted into the body 100.

When the inserted stick 20 is removed from the body 100, the controller 17 may initialize the current number of puffs stored in the memory 14.

Referring to fig. 3, the aerosol-generating device 10 according to this embodiment may comprise a body 100 supporting a cartridge 200 and a cartridge 200 containing an aerosol-generating substance.

In one embodiment, the cartridge 200 may be configured to be removably attached to the body 100. In another embodiment, the cartridge 200 may be integrally formed with the body 100. For example, at least a portion of the cartridge 200 may be inserted into an interior space defined by the housing 101 of the body 100, thereby allowing the cartridge 200 to be mounted to the body 100.

The main body 100 may have a structure allowing external air to be introduced thereinto in case that the cartridge 200 is inserted. Here, the external air introduced into the main body 100 may pass through the cartridge 200 to flow into the mouth of the user.

The controller 17 may determine the installation of the cartridge 200 with the body 100/the removal of the cartridge 200 from the body 100 by a cartridge detection sensor included in the sensor module 15. For example, the cartridge detection sensor may transmit a pulse current through one terminal connected to the cartridge 200. In this case, the cartridge detection sensor may detect connection or disconnection of the cartridge 200 based on whether or not the pulse current is received through the other terminal.

The cartridge 200 may comprise a heater 210 to heat the aerosol-generating substance and/or a storage portion 220 to store the aerosol-generating substance. For example, a liquid delivery element impregnated with (containing) an aerosol-generating substance may be provided in the storage portion 220. The conductive track of the heater 210 may have a structure wound around the liquid transport element. When the liquid delivery element is heated by the heater 210, an aerosol may be generated. Here, the liquid transport element may be a core such as cotton fibers, ceramic fibers, glass fibers or porous ceramics.

The cartridge 200 may include an insertion space 230 configured to allow the rod 20 to be inserted therein. For example, the cartridge 200 may include an insertion space defined by an inner wall (not shown) extending in a circumferential direction along the direction in which the rod 20 is inserted. Here, the inside of the inner wall may be vertically opened to define an insertion space. The rod 20 may be inserted into the insertion space 230 defined by the inner wall.

The insertion space into which the rod 20 is inserted may have a shape corresponding to the shape of the portion of the rod 20 inserted into the insertion space. For example, when the rod 20 has a cylindrical shape, the insertion space may be formed in a cylindrical shape.

When the rod 20 is inserted into the insertion space, the outer circumferential surface of the rod 20 may be surrounded by the inner wall to be in contact with the inner wall.

A portion of the rod 20 may be inserted into the insertion space 230 of the cartridge 200, and the remaining portion may be exposed to the outside.

The user may inhale the aerosol while holding one end of the wand 20 in his or her mouth. The aerosol generated by the heater 210 may pass through the rod 20 to be delivered into the mouth of the user. Here, the material included in the rod 20 may be added to the aerosol while passing through the rod 20, and the aerosol of the added material may be inhaled into the mouth of the user through one end of the rod 20.

Referring to fig. 4, the aerosol-generating device 10 according to this embodiment may comprise a body 100 supporting a cartridge 200 and a cartridge 200 containing an aerosol-generating substance. The body 100 may be configured such that the rod 20 may be inserted into the insertion space 130.

The aerosol-generating device 10 may comprise a first heater configured to heat the aerosol-generating substance stored in the cartridge 200. For example, when a user draws on one end of the rod 20 with his or her mouth, the aerosol generated by the first heater may pass through the rod 20. Here, a flavoring may be added to the aerosol as it passes through the rod 20. The flavoured aerosol may be drawn into the mouth of the user through one end of the wand 20.

In another embodiment, the aerosol-generating device 10 may comprise a heater configured to heat the aerosol-generating substance stored in the cartridge 200 and a heater configured to heat the rod 20 inserted into the body 100. For example, the aerosol-generating device 10 may generate an aerosol by heating the aerosol-generating substance stored in the cartridge 200 and the rod 20 by means of a plurality of heaters, respectively.

Fig. 5 to 7 are diagrams for explaining a rod according to an embodiment of the present disclosure. Overlapping descriptions in fig. 5 to 7 will be omitted.

Referring to fig. 5, a rod 20 according to this embodiment may include a tobacco rod 21 and a filter rod 22. The first portion described above with reference to fig. 2 may comprise a tobacco rod 21. The second portion described above with reference to fig. 2 may include a filter rod 22.

The filter rod 22 in fig. 5 is shown as a single section, but is not limited thereto. In other words, the filter rod 22 may comprise a plurality of sections. For example, the filter rod 22 may include a first section for cooling the aerosol and a second section for filtering a predetermined component included in the aerosol. Further, the filter rod 22 may also include at least one section that performs another function when desired.

The diameter of the rod 20 may be in the range of 5mm to 9mm, and the length of the rod 20 may be about 48mm. However, the present disclosure is not limited thereto. For example, the length of the tobacco rod 21 may be about 12mm, the length of the first section of the filter rod 22 may be about 10mm, the length of the second section of the filter rod 22 may be about 14mm, and the length of the third section of the filter rod 22 may be about 12mm. However, the present disclosure is not limited thereto.

The rod 20 may be wrapped by at least one wrapper 24. The wrapper 24 may have at least one hole through which external air is introduced or internal gas is discharged. In one example, the rod 20 may be wrapped by a wrapper 24. In another example, the rod 20 may be wrapped in an overlapping manner by two or more wrappers 24. For example, the tobacco rod 21 may be wrapped by a first wrapper 241. For example, the filter rod 22 may be wrapped by wrappers 242, 243, and 244. The tobacco rod 21 and the filter rod 22, which are wrapped by respective wrappers, may be coupled to each other. The entire rod 20 may be repacked by the third wrapper 243. When the filter rod 22 is made up of multiple sections, each of the sections may be wrapped by a separate wrapper (242, 243, 244). Furthermore, the entire rod 20, in which the sections respectively wrapped by the individual wrappers are coupled to each other, may be repacked by another wrapper.

The first wrapper 241 and the second wrapper 242 may be made of a common filter wrap paper. For example, the first and second wrappers 241, 242 may be porous or non-porous wrappers. Further, the first wrapper 241 and the second wrapper 242 may be made of paper having oil resistance and/or an aluminum laminate packaging material.

The third wrapper 243 may be made of hard wrap paper. For example, the basis weight of the third wrap 243 may be in the range of 88g/m ² to 96g/m ². For example, the basis weight of the third wrap 243 may be in the range of 90g/m ² to 94g/m ². Further, the thickness of the third wrapper 243 may be in the range of 120 μm to 130 μm. For example, the thickness of the third wrap 243 may be 125 μm.

The fourth wrapper 244 may be made of oil resistant hard wrapping paper. For example, the basis weight of the fourth wrapper 244 may be in the range of 88g/m ² to 96g/m ². For example, the basis weight of the fourth wrapper 244 may be in the range of 90g/m ² to 94g/m ². Further, the thickness of the fourth wrapper 244 may be in the range of 120 μm to 130 μm. For example, the thickness of the fourth wrap 244 may be 125 μm.

The fifth wrapper 245 may be made of sterile paper (MFW). Here, the aseptic paper (MFW) may refer to paper specifically designed to have improved tensile strength, water resistance, smoothness, etc., as compared to plain paper. For example, the basis weight of the fifth wrapper 245 may be in the range of 57g/m ² to 63g/m ². For example, the basis weight of the fifth wrapper 245 may be 60g/m ². Further, the thickness of the fifth wrapper 245 may be in the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper 245 may be 67 μm.

A predetermined material may be added to the fifth wrapper 245. Here, an example of the predetermined material may be silicone, but is not limited thereto. For example, silicone may have characteristics such as heat resistance, oxidation resistance, resistance to various chemicals, water resistance, electrical insulation, and the like, which are small in change with temperature. However, any material having the above properties may be applied to the fifth wrapper 245 or coated on the fifth wrapper 245, except for silicone.

The fifth wrapper 245 may prevent combustion of the rod 20. For example, when the tobacco rod 21 is heated by the heater 110, there may be a possibility of the rod 20 burning. In detail, when the temperature rises above the ignition point of any of the materials included in the tobacco rod 21, the rod 20 may burn. However, since the fifth wrapper 245 includes a non-combustible material, combustion of the rod 20 may be prevented.

In addition, the fifth wrapper 245 may prevent the body 100 from being contaminated by the material generated in the rod 20. Liquid material may be generated in the wand 20 by suction from the user. For example, when the aerosol generated in the rod 20 is cooled by the outside air, a liquid (e.g., moisture, etc.) may be generated. When the rod 20 is wrapped by the fifth wrapper 245, the liquid generated in the rod 20 can be prevented from leaking out of the rod 20.

The tobacco rod 21 may include an aerosol-generating substance. For example, the aerosol-generating substance may include, but is not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. In addition, the tobacco rod 21 may contain other additives such as flavoring agents, humectants, and/or organic acids. In addition, a flavoring liquid such as menthol or a humectant may be added to the tobacco rod 21 by spraying onto the tobacco rod 21.

The tobacco rod 21 may be manufactured in various ways. For example, the tobacco rod 21 may be formed as a sheet. For example, the tobacco rod 21 may be formed as a strand. For example, the tobacco rod 21 may be formed as cut tobacco obtained by finely cutting a tobacco sheet. For example, the tobacco rod 21 may be surrounded by a thermally conductive material. For example, the heat conductive material may be a metal foil such as an aluminum foil, but is not limited thereto. For example, the thermally conductive material surrounding the tobacco rod 21 may evenly distribute the heat transferred to the tobacco rod 21, thereby increasing the conduction of heat applied to the tobacco rod 21. As a result, the taste of tobacco can be improved. The thermally conductive material surrounding the tobacco rod 21 may act as a susceptor that is heated by an induction heater. Although not shown in the figures, the tobacco rod 21 may include additional susceptors in addition to the thermally conductive material surrounding the exterior of the tobacco rod 21.

The filter rod 22 may be a cellulose acetate filter. Further, the filter rod 22 is not limited to a specific shape. For example, the filter rod 22 may be a cylindrical rod. For example, the filter rod 22 may be a tubular rod including a hollow portion therein. For example, the filter rod 22 may be a recess-type rod. When the filter rod 22 is made up of a plurality of sections, at least one of the plurality of sections may have a different shape than the other sections.

The first section of the filter rod 22 may be a cellulose acetate filter. For example, the first section may be a tubular structure including a hollow therein. The first section may prevent the interior material of the tobacco rod 21 from being pushed back when inserted into the heater 110 and may provide the effect of cooling the aerosol. The diameter of the hollow portion included in the first section may be appropriately determined or selected in the range of 2mm to 4.5mm, but is not limited thereto.

The length of the first section may be appropriately determined in the range of 4mm to 30mm, but is not limited thereto. For example, the length of the first section may be 10mm, but is not limited thereto.

The second section of the filter rod 22 cools the aerosol generated when the heater 110 heats the tobacco rod 21. Thus, the user can inhale the aerosol cooled to an appropriate temperature.

The length or diameter of the second section may be determined differently depending on the shape of the rod 20. For example, the length of the second section may be suitably selected in the range of 7mm to 20 mm. More preferably, the length of the second section may be about 14mm, but is not limited thereto.

The second section may be made by braiding polymer fibers. In this case, the seasoning liquid may be applied to the fiber made of the polymer. Alternatively, the second section may be made by braiding together individual fibers coated with a flavoring liquid and fibers made of a polymer. Alternatively, the second section may be made of a curled polymeric sheet.

For example, the polymer may be made of a material selected from the group consisting of Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose Acetate (CA), and aluminum foil.

When the second section is made of woven polymer fibers or crimped polymer sheets, the second section may comprise a single channel or multiple channels extending in the longitudinal direction. Here, a "channel" may refer to a channel through which a gas (e.g., air or aerosol) passes.

For example, the second section made of crimped polymer sheet may be made of a material having a thickness between 5 μm and 300 μm (i.e. between 10 μm and 250 μm). Furthermore, the total surface area of the second section may be between 300mm ²/mm and 1000mm ²/mm. Furthermore, the aerosol-cooling element may be made of a material having a specific surface area between 10mm ²/mg and 100mm ²/mg.

Meanwhile, the second section may include a line containing volatile flavor components. Here, the volatile flavor component may be menthol, but is not limited thereto. For example, the thread may be filled with a sufficient amount of menthol to provide at least 1.5mg of menthol to the second segment.

The third section of the filter rod 22 may be a cellulose acetate filter. The length of the third section may be suitably selected in the range 4mm to 20 mm. For example, the length of the third section may be about 12mm, but is not limited thereto.

The filter rod 22 may be manufactured to create a flavor. In one example, the flavoring may be sprayed onto the filter rod 22. In another example, individual fibers coated with a flavoring may be inserted into the filter rod 22.

Furthermore, the filter rod 22 may comprise at least one capsule 23. Here, the capsule 23 may perform a function of generating a flavor. The capsule 23 may also perform the function of generating an aerosol. For example, the capsule 23 may have a structure in which a liquid containing a flavoring material is wrapped with a film. The capsule 23 may have a spherical or cylindrical shape, but is not limited thereto.

Referring to fig. 6, the rod 30 according to this embodiment may further include a front end plug 33. The front plug 33 is disposed on the opposite side of the filter rod 32 from the tobacco rod 31. The front plug 33 can prevent the tobacco rod 31 from being separated to the outside. The front plug 33 may prevent liquefied aerosol from flowing from the tobacco rod 31 into the aerosol-generating device 10 during smoking.

The filter rod 32 may include a first section 321 and a second section 322. The first section 321 may correspond to the first section of the filter rod 22 of fig. 5. The second section 322 may correspond to the third section of the filter rod 22 of fig. 5.

The diameter and overall length of the rod 30 may correspond to the diameter and overall length of the rod 20 of fig. 5. For example, the front end plug 33 may be about 7mm in length, the tobacco rod 31 may be about 15mm in length, the first section 321 may be about 12mm in length, and the second section 322 may be about 14mm in length. However, the present disclosure is not limited thereto.

The rod 30 may be wrapped by at least one wrapper 35. The wrapper 35 may have at least one hole through which external air is introduced or internal gas is discharged. For example, the front end plug 33 may be wrapped by a first wrapper 351, the tobacco rod 31 may be wrapped by a second wrapper 352, the first section 321 may be wrapped by a third wrapper 353, and the second section 322 may be wrapped by a fourth wrapper 354. The entire rod 30 may then be repacked by a fifth wrapper 355.

Further, the fifth wrapper 355 may have at least one perforation 36. For example, perforations 36 may be formed in the area surrounding tobacco rod 31, but are not limited thereto. For example, perforations 36 may be used to transfer heat generated by heater 210 of fig. 3 to the interior of tobacco rod 31.

Further, the second section 322 may include at least one capsule 34. Here, the capsule 34 may perform a function of generating a flavor. The capsule 34 may also perform the function of generating an aerosol. For example, the capsule 34 may have a structure in which a liquid film containing a flavoring material therein is wrapped. The capsule 34 may have a spherical or cylindrical shape, but is not limited thereto.

The first wrapper 351 may be made by coupling a metal foil, such as aluminum foil, to a common filter wrapper. For example, the total thickness of the first wrap 351 may be in the range of 45 μm to 55 μm. For example, the total thickness of the first wrap 351 may be 50.3 μm. Further, the thickness of the metal foil of the first wrapper 351 may be in the range of 6 μm to 7 μm. For example, the thickness of the metal foil of the first wrapper 351 may be 6.3 μm. Further, the basis weight of the first wrapper 351 may be in the range of 50g/m ² to 55g/m ². For example, the basis weight of the first wrapper 351 may be 53g/m ².

The second wrapper 352 and the third wrapper 353 may be made of conventional filter wrap paper. For example, the second wrapper 352 and the third wrapper 353 may be porous or non-porous wrappers.

For example, the porosity of the second wrapper 352 may be 35000CU, but is not limited thereto. Further, the thickness of the second wrapper 352 may be in the range of 70 μm to 80 μm. For example, the thickness of the second wrap 352 may be 78 μm. Further, the basis weight of the second wrapper 352 may be in the range of 20g/m ² to 25g/m ². For example, the basis weight of the second wrapper 352 may be 23.5g/m ².

For example, the porosity of the third wrapper 353 may be 24000CU, but is not limited thereto. Further, the thickness of the third wrapper 353 may be in the range of 60 μm to 70 μm. For example, the thickness of the third wrapper 353 may be 68 μm. Further, the basis weight of the third wrapper 353 may be in the range of 20g/m ² to 25g/m ². For example, the basis weight of the third wrapper 353 may be 21g/m ².

The fourth wrapper 354 may be made of PLA laminate paper. Here, the PLA laminated paper may refer to a three-ply paper consisting of a paper ply, a PLA layer and a paper ply. For example, the thickness of the fourth wrap 354 may be in the range of 100 μm to 120 μm. For example, the thickness of the fourth wrap 354 may be 110 μm. Further, the basis weight of the fourth wrapper 354 may be in the range of 80g/m ² to 100g/m ². For example, the basis weight of the fourth wrapper 354 may be 88g/m ².

Fifth wrapper 355 may be made of sterile paper (MFW). Here, the aseptic paper (MFW) may refer to paper specifically designed to have improved tensile strength, water resistance, smoothness, etc., as compared to plain paper. For example, the basis weight of the fifth wrapper 355 may be in the range of 57g/m ² to 63g/m ². For example, the basis weight of the fifth wrapper 355 may be 60g/m ². Further, the thickness of the fifth wrapper 355 may be in the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper 355 may be 67 μm.

A predetermined material may be added to the fifth wrapper 355. Here, an example of the predetermined material may be silicone, but is not limited thereto. For example, silicone has characteristics such as heat resistance, oxidation resistance, resistance to various chemicals, water repellency, electrical insulation, and the like, which are small in change with temperature. However, any material having the above characteristics may be applied (or coated) onto fifth wrapper 355, other than silicone.

The front plug 33 may be made of cellulose acetate. In one example, the front plug 33 may be made by adding a plasticizer (e.g., glyceryl triacetate) to the cellulose acetate tow. The single denier (denier) of the filaments constituting the cellulose acetate tow may be in the range of 1.0 to 10.0. For example, the single denier of the filaments constituting the cellulose acetate tow may be in the range of 4.0 to 6.0. For example, the filament of the front end plug 33 may have a single denier of 5.0. Further, the cross section of the filament of the front end plug 33 may be Y-shaped. The total titer of the front-end plug 33 may be in the range of 20000 to 30000. For example, the total titer of the front-end plug 33 may be in the range of 25000 to 30000. For example, the total titer of the front end plug 33 may be 28000.

Furthermore, the front end plug 33 may include at least one channel when desired. The shape of the cross section of the passage of the front-end plug 33 may be formed in various ways.

The tobacco rod 31 may correspond to the tobacco rod 21 described above with reference to fig. 5. Therefore, a detailed description of the tobacco rod 31 will be omitted.

The first section 321 may be made of cellulose acetate. For example, the first section may be a tubular structure including a hollow portion therein. The first section 321 may be made by adding a plasticizer (e.g., glyceryl triacetate) to the cellulose acetate tow. For example, the single denier and the total denier of the first section 321 may be the same as the single denier and the total denier of the front end plug 33.

The second section 322 may be made of cellulose acetate. The filament of second section 322 may have a single denier in the range of 1.0to 10.0. For example, the denier per filament of the filaments of second section 322 may be in the range of 8.0 to 10.0. For example, the denier per filament of the filaments of second section 322 may be 9.0. Furthermore, the cross-section of the filaments of second section 322 may be Y-shaped. The total titer of the second section 322 may be in the range of 20000 to 30000. For example, the total denier of second section 322 may be 25000.

Referring to fig. 7, the wand 40 may include a media portion 410. The rod 40 may include a cooling portion 420. The wand 40 may include a filter portion 430.

The cooling portion 420 may be disposed between the media portion 410 and the filter portion 430. The wand 40 may include a wrap 440. Wrap 440 may wrap media portion 410. The wrap 440 may wrap the cooling portion 420. The wrap 440 may wrap the filter portion 430. The rod 40 may have a cylindrical shape.

The media portion 410 may include media 411. The media portion 410 may include a first support portion 413. The media portion 410 may include a second support portion 415. The medium 411 may be disposed between the first support portion 413 and the second support portion 415. The first support portion 413 may be disposed at one end of the rod 40. The media portion 410 may have a length of 24 mm.

The medium 411 may comprise a multi-component substance. The substance contained in the medium may be a multi-component flavouring substance. The medium 411 may be composed of a plurality of particles. Each particle of the plurality of particles may have a size of 0.4mm to 1.12 mm. These particles may comprise about 70% of the volume of the medium 411. The length L2 of the medium 411 may be 10mm. The first support portion 413 may be made of a paper material. The second support portion 415 may be made of a paper material. The first support portion 413 may be made of an acetate material. The second support portion 415 may be made of an acetate material. At least one of the first support portion 413 and the second support portion 415 may be made of a paper material to be crumpled to have wrinkles, and a plurality of gaps may be formed between the wrinkles to allow air to flow therethrough. Each of the gaps may be smaller than each of the particles of the medium 411. The length L1 of the first support portion 413 may be shorter than the length L2 of the medium 411. The length L3 of the second support portion 415 may be shorter than the length L2 of the medium 411. The length L1 of the first support portion 413 may be 7mm and the length L2 of the second support portion 415 may be 7mm.

Thus, each of the particles of the medium 411 can be prevented from being separated from the medium portion 410 and the rod 40.

The cooling portion 420 may have a cylindrical shape. The cooling portion 420 may have a hollow shape. The cooling portion 420 may be disposed between the media portion 410 and the filter portion 430. The cooling portion 420 may be disposed between the second support portion 415 and the filter portion 430. The cooling portion 420 may be formed in the shape of a tube surrounding the cooling path 424 formed therein. The cooling portion 420 may be thicker than the wrap 440. The cooling portion 420 may be made of a thicker paper material than the paper material of the wrapper 440. The length L4 of the cooling portion 420 may be equal to or approximately the length L2 of the medium 411. The length L4, which is the length of the cooling portion 420 and the cooling path 424, may be 10mm. When the rod 40 is inserted into the aerosol-generating device 10, at least a portion of the cooling portion 420 may be exposed to the exterior of the aerosol-generating device 10.

Thus, the cooling portion 420 can support the medium portion 410 and the filter portion 430, and rigidity of the rod 40 can be achieved. Further, the cooling portion 420 may support the wrap 440 between the media portion 410 and the filter portion 430, and may provide a portion to which the wrap 440 adheres. Further, the heated air and aerosol may be cooled as they pass through the cooling path 424 in the cooling portion 420.

The filter portion 430 may be configured as a filter made of acetate material. The filter portion 430 may be provided at the other end of the rod 40. When the rod 40 is inserted into the aerosol-generating device 10, the filter portion 430 may be exposed to the outside of the aerosol-generating device 10. The user may inhale air while holding the filter part 430 in his or her mouth. The length L5 of the filter portion 430 may be 14mm.

The wrap 440 may wrap or surround the media portion 410, the cooling portion 420, and the filter portion 430. The wrap 440 may define the appearance of the stick 40. The wrapper 440 may be made of a paper material. The adhesive portion 441 may be formed along one edge of the wrapper 440. The wrap 440 may surround the medium part 410, the cooling part 420, and the filter part 430, and an adhesive part 441 formed along one edge of the wrap 440 and the other edge of the wrap 440 may be adhered to each other. Wrap 440 may surround media portion 410, cooling portion 420, and filter portion 430, but may not cover one end and the other end of rod 40.

Thus, the wrap 440 may secure the media portion 410, the cooling portion 420, and the filter portion 430, and may prevent these components from separating from the rod 40.

The first film 443 may be disposed at a position corresponding to the first support portion 413. The first film 443 may be disposed between the wrapper 440 and the first support portion 413, or may be disposed outside the wrapper 440. The first film 443 may surround the first support portion 413. The first film 443 may be made of a metal material. The first film 443 may be made of an aluminum material. The first film 443 may be in close contact with the wrapper 440 or coated on the wrapper 440.

The second film 445 may be disposed at a position corresponding to the second support portion 415. The second film 445 may be disposed between the wrapper 440 and the second support portion 415, or may be disposed outside the wrapper 440. The second film 445 may be made of a metal material. The second film 445 may be made of an aluminum material. The second film 445 may be in intimate contact with the wrapper 440 or coated on the wrapper 440.

Fig. 8 is a diagram showing a structure of an aerosol-generating device according to an embodiment of the present disclosure, and fig. 9 and 10 are diagrams for explaining the aerosol-generating device.

Referring to fig. 8 to 10, the aerosol-generating device 10 may include a chamber C1, a heater 131, a battery 16, and a temperature switch 50.

A chamber C1 may be provided in the housing 101 of the aerosol-generating device 10, the aerosol-generating substance being stored in the chamber C1. A flow path may be provided at one side of the chamber C1 which communicates with the chamber C1 and through which the aerosol-generating substance flows. The flow path may have disposed therein a core (not shown) impregnated with (containing) an aerosol-generating substance. The aerosol-generating substance in the chamber C1 may be impregnated into the core. For example, the core may comprise cotton fibers, ceramic fibers, glass fibers, porous ceramics, and the like.

The heater 131 may include a coil 1313 surrounding a core, a first heater terminal 1311 connected to one end of the coil 1313, and a second heater terminal 1312 connected to the other end of the coil 1313. The heater 131 may be disposed adjacent to one end of the chamber C1. The heater 131 may heat the aerosol-generating substance impregnated in the core, which aerosol-generating substance has flowed from the chamber C1 to the core.

The battery 16 may be electrically connected to the heater 131 to supply power to the heater 131. The battery 16 may include a first battery terminal 161 and a second battery terminal 162. The first battery terminal 161 and the second battery terminal 162 may be electrically connected to both ends of the coil 1313 of the heater 131, respectively. When a voltage between the first battery terminal 161 and the second battery terminal 162 is applied to both ends of the coil 1313, electric power may be supplied from the battery 16 to the heater 131.

The temperature switch 50 may be electrically connected to the heater 131 and the battery 16.

Referring to fig. 9, a temperature switch 50 may be electrically connected to the heater 131 and the battery 16. The temperature switch 50 may have an elongated shape, and may be provided with a switch terminal at each of both ends in a longitudinal direction thereof. The temperature switch 50 may have a first switch terminal 53 at one end thereof in the longitudinal direction and a second switch terminal 54 at the other end thereof in the longitudinal direction. The first switch terminal 53 of the temperature switch 50 may be in contact (electrically coupled) with the first heater terminal 1311. The second switch terminal 54 may be electrically connected to a first battery terminal 161 of the battery 16.

The first switch terminal 53 of the temperature switch 50 may be provided inside the housing 101 in the form of a free end to achieve contact and non-contact with the first heater terminal 1311. The second switch terminal 54 of the temperature switch 50 may be electrically connected to the first battery terminal 161, and may be fixed inside the case 101.

Referring to fig. 10, the first switch terminal 53 of the temperature switch 50 may be disposed adjacent to the coil 1313 of the heater 131. When the heater 131 is heated while power is supplied from the battery 16 to the heater 131, the temperature switch 50 may be heated together with the heater 131. The temperature switch 50 may be heated to the temperature of the coil 1313 or a temperature close to the temperature of the coil 1313. As the temperature switch 50 is heated and the temperature rises accordingly, the temperature switch 50 may bend in one direction. For example, when the temperature switch 50 is heated to a first temperature (temperature threshold) or higher, the temperature switch 50 may be bent in one direction. Here, the first temperature may be determined according to the metal part constituting the temperature switch 50.

When the temperature switch 50 is bent in one direction, the first switch terminal 53 may be spaced apart from the first heater terminal 1311. The first switch terminal 53 may be electrically disconnected with respect to the first heater terminal 1311.

The temperature switch 50 may include two or more metal plates. For example, the temperature switch 50 may include a first plate 51 including a first metal and a second plate 52 including a second metal. The first plate 51 may be made of a first metal and the second plate 52 may be made of a second metal. One surface of the first plate 51 and one surface of the second plate 52 may contact each other.

Both ends of the first plate 51 may be connected to the first and second switch terminals 53 and 54, respectively, and both ends of the second plate 52 contacting the first plate 51 may be connected to the first and second switch terminals 53 and 54, respectively. For example, the first and second switch terminals 53 and 54 may be electrically connected to both ends of the first and second plates 51 and 52, and may be made of any one of first and second metals constituting the first and second plates 51 and 52, respectively. Meanwhile, the first and second switch terminals 53 and 54 may be portions of the first and/or second plates 51 and 52. In this case, one end of the first plate 51 or one end of the second plate 52 may be the first switch terminal 53, and the other end of the first plate 51 or the other end of the second plate 52 may be the second switch terminal 54.

The first metal and the second metal may have different coefficients of thermal expansion. For example, the coefficient of thermal expansion of the first metal may have a value greater than the coefficient of thermal expansion of the second metal. For example, the coefficient of thermal expansion of the first metal may have a smaller value than the coefficient of thermal expansion of the second metal.

For example, the first metal may be copper (Cu), and the second metal may be iron (Fe). For example, the first metal may be nickel (Ni), an alloy of iron (Fe) and manganese (Mn), nickel (Ni), an alloy of iron (Fe) and molybdenum (Mo), or an alloy of nickel (Ni), manganese (Mn) and copper (Cu), and the second metal may be an alloy of nickel (Ni) and iron (Fe). However, the types of the first metal and the second metal are not limited thereto.

When the temperature of the temperature switch 50 increases, the temperature switch 50 may be bent in one direction due to the difference in the degree of expansion of the first plate 51 and the second plate 52. For example, when the coefficient of thermal expansion of the first metal is greater than the coefficient of thermal expansion of the second metal, the temperature switch 50 may be bent in the direction in which the second plate 52 is located as the temperature increases. For example, when the coefficient of thermal expansion of the first metal is smaller than that of the second metal, the temperature switch 50 may be bent in the direction in which the first plate 51 is located as the temperature increases.

The first temperature may be a temperature above the evaporation temperature of the aerosol-generating substance. In a state where the first switch terminal 53 of the temperature switch 50 is in contact with the first heater terminal 1311, the heater 131 can be heated by receiving electric power from the battery 16. The heater 131 may be heated to a temperature above the evaporation temperature of the aerosol-generating substance. When the heater 131 is heated to a temperature above the evaporation temperature of the aerosol-generating substance, the aerosol-generating substance in the wick may evaporate by the heat of the heater 131.

The first temperature may be a temperature equal to or lower than the set temperature. Here, the set temperature may be a temperature of the heater 131 in a state where the aerosol-generating substance impregnated in the core is completely or completely evaporated and exhausted. The set temperature may be a temperature above the evaporation temperature of the aerosol-generating substance. The temperature of the heater 131 may be rapidly increased when the aerosol-generating substance contained in the core is all evaporated without additional aerosol-generating substance being supplied to the core. Thus, the set temperature may be set to a temperature at which the temperature of the heater 131 starts to rise after all the aerosol-generating substance contained in the wick is evaporated. For example, the set temperature may be a temperature 5 degrees or 10 degrees higher than the evaporation temperature of the aerosol-generating substance. However, the set temperature is not limited thereto, and may be set based on experimental data or the like.

When the temperature switch 50 switches the electrical connection between the heater 131 and the battery 16 based on the first temperature, the heater 131 may be heated to a temperature equal to or higher than the evaporation temperature of the aerosol-generating substance, thereby allowing the aerosol-generating substance to evaporate.

Further, when the heater 131 is heated to a temperature higher than the evaporation temperature of the aerosol-generating substance by a predetermined degree (first temperature) when the aerosol-generating substance is consumed, the electrical connection between the heater 131 and the battery 16 can be cut off, thereby preventing overheating of the heater 131.

Fig. 11 and 12 are diagrams for explaining an aerosol-generating device. A detailed description overlapping with the description in fig. 9 and 10 will be omitted.

Referring to fig. 11 and 12, the fuse 60 may be electrically connected between the second heater terminal 1312 of the heater 131 and the second battery terminal 162 of the battery 16. Both ends of the fuse 60 may be connected to the second heater terminal 1312 and the second battery terminal 162, respectively. A first end of the fuse 60 may be coupled to the second heater terminal 1312 and a second end of the fuse 60 may be coupled to the second battery terminal 162.

The heater 131 may include a third heater terminal 1314. The third heater terminal 1314 may be electrically connected to the second heater terminal 1312. For example, the third heater terminal 1314 may be connected to the second heater terminal 1312 by a wire. For example, the third heater terminal 1314 may be connected to the second heater terminal 1312 through a pattern of PCB circuits.

The third heater terminal 1314 may be disposed adjacent to the first switch terminal 53 of the temperature switch 50.

Referring to fig. 11, at a temperature lower than the first temperature, the first switch terminal 53 of the temperature switch 50 may be in contact with the first heater terminal 1311.

Referring to fig. 12, the first metal of the first plate 51 of the temperature switch 50 may have a thermal expansion coefficient greater than that of the second metal of the second plate 52 of the temperature switch 50. In this case, when the temperature switch 50 is heated to the first temperature or higher, the temperature switch 50 may be bent in one direction. As a result, the first switch terminal 53 may contact the third heater terminal 1314 to be electrically connected to the third heater terminal 1314.

When the current flowing through the fuse 60 is greater than or equal to a predetermined value, the fuse 60 may be electrically disconnected. The threshold current at which the fuse 60 is electrically disconnected may be referred to as an off-current. For example, the fuse 60 may be fused when a current having a magnitude higher than that of the off-current flows. When the fuse 60 is blown, both ends of the fuse 60 may be electrically and permanently disconnected.

When the first switch terminal 53 of the temperature switch 50 is electrically connected to the first heater terminal 1311 at a temperature lower than the first temperature, a first closed loop in which the battery 16, the temperature switch 50, the heater 131, and the fuse 60 are connected in series may be formed.

When the first switch terminal 53 of the temperature switch 50 is electrically connected to the third heater terminal 1314 at a temperature greater than or equal to the first temperature, a second closed loop in which the battery 16, the temperature switch 50, and the fuse 60 are connected in series may be formed.

In the first closed loop, a current having a magnitude lower than the magnitude of the off-current may flow through the fuse 60. In the second closed loop, a current having a magnitude equal to or higher than the magnitude of the off-current may flow through the fuse 60. Since there is no resistance due to the heater 131 in the second closed loop, the magnitude of the current flowing through the second closed loop may be greater than the magnitude of the current flowing through the first closed loop, as compared to the first closed loop.

When the first switch terminal 53 is electrically connected to the third heater terminal 1314, a current greater than or equal to the off-current may flow through the fuse 60. Accordingly, the fuse 60 may be electrically disconnected (blown), the heater 131 may be electrically disconnected with respect to the battery 16, and the power supplied from the battery 16 to the heater 131 may be cut off.

When the fuse 60 is electrically disconnected (blown), the heater 131 and the battery 16 are not electrically connected unless the fuse 60 is replaced. Therefore, even when the temperature of the temperature switch 50 falls below the first temperature, the heater 131 can be maintained in an electrically disconnected state with respect to the battery 16, and the power supplied from the battery 16 to the heater 131 can be cut off.

Meanwhile, the fuse 60 and the protection resistor 70 may be electrically connected between the second heater terminal 1312 of the heater 131 and the second battery terminal 162 of the battery 16. The fuse 60 and the protection resistor 70 may be connected in series between the second heater terminal 1312 and the second battery terminal 162.

When the first switch terminal 53 of the temperature switch 50 is electrically connected to the first heater terminal 1311 at a temperature lower than the first temperature, a third closed loop in which the battery 16, the temperature switch 50, the heater 131, the fuse 60, and the protection resistor 70 are connected in series may be formed.

When the first switch terminal 53 of the temperature switch 50 is electrically connected to the third heater terminal 1314 at a temperature greater than or equal to the first temperature, a fourth closed loop in which the battery 16, the temperature switch 50, the fuse 60, and the protection resistor 70 are connected in series may be formed.

In the third closed loop, a current having a magnitude lower than the magnitude of the off-current may flow through the fuse 60. In the fourth closed loop, a current having a magnitude equal to or higher than the magnitude of the off-current may flow through the fuse 60.

As in the case of the second closed loop, when the temperature switch 50 and the fuse 60 are connected only to the battery 16, the magnitude of the current flowing through the second closed loop may be higher than necessary. In this case, an off-current having a high magnitude should be used for the fuse 60, and there may be a possibility of damaging the battery 16. When the protection resistor 70 is also connected in series to the fuse 60in the fourth closed loop, the magnitude of the current flowing through the fourth closed loop may be set within an appropriate range due to the magnitude of the protection resistor 70.

Fig. 13 and 14 are diagrams for explaining an aerosol-generating device. A detailed description overlapping with the description in fig. 9 and 10 will be omitted.

Referring to fig. 13 and 14, the first adhesive portion 55 may be disposed at one side of the temperature switch 50. For example, the first plate 51 of the temperature switch 50 may be disposed adjacent to one surface of the case 101, and the first adhesive portion 55 may be disposed on a surface of the first plate 51 disposed adjacent to one surface of the case 101. The adhesive may be applied to the first adhesive portion 55, or the first adhesive portion 55 may contain an adhesive.

The second adhesive portion 111 may be provided on one surface of the case 101. The second adhesive portion 111 may be provided on a surface of the case 101 disposed adjacent to the first plate 51. Regarding the longitudinal direction of the temperature switch 50 (the direction from the first heater terminal 1311 to the first battery terminal 161), the second adhesive portion 111 may be provided at a position corresponding to the position where the first adhesive portion 55 is provided.

The adhesive may be applied to the second adhesive portion 111, or the second adhesive portion 111 may contain an adhesive. The portion of the second adhesive portion 111 to which the adhesive is applied or contained may be disposed opposite to the portion of the first adhesive portion 55 to which the adhesive is applied or contained.

The first metal of the first plate 51 of the temperature switch 50 may have a lower coefficient of thermal expansion than the second metal of the second plate 52 of the temperature switch 50. In this case, when the temperature switch 50 is heated to the first temperature or higher, the temperature switch 50 may be bent in a direction in which the second adhesive portion 111 is disposed. Accordingly, the first and second adhesive portions 55 and 111 may contact each other.

When the temperature switch 50 is heated to the first temperature or higher, the first and second adhesive portions 55 and 111 may contact each other, thereby allowing the temperature switch 50 to be fixed while contacting one surface of the case 101. Therefore, even when the temperature of the temperature switch 50 falls below the first temperature, the heater 131 can be maintained in an electrically disconnected state with respect to the battery 16, and the power supplied from the battery 16 to the heater 131 can be cut off.

As described above, according to at least one of the embodiments of the present disclosure, the power supply to the heater may be cut off based on the remaining amount of the aerosol-generating substance.

Referring to fig. 1-14, an aerosol-generating device 10 according to one aspect of the present disclosure may comprise: a housing 101; a heater 131 configured to heat an aerosol-generating substance; a battery 16 configured to supply power to the heater 131; and a temperature switch 50 configured to switch the electrical connection between the heater 131 and the battery 16. The temperature switch 50 may include a first switch terminal 53 positioned to be electrically coupled to a first heater terminal 1311 of the heater 131 and a second switch terminal 54 positioned to be electrically coupled to a first battery terminal 161 of the battery 16, and the temperature switch 50 may be bent in a direction when the temperature switch 50 is heated to or above a first temperature. After the temperature switch 50 is bent in this direction, the first switch terminal 53 may be spaced apart from the first heater terminal 1311 to electrically disconnect the first switch terminal 53 from the first heater terminal 1311.

According to another aspect of the present disclosure, the first temperature may be higher than the evaporation temperature of the aerosol-generating substance.

According to another aspect of the present disclosure, the temperature switch 50 may include: a first plate 51 including a first metal and extending from the first battery terminal 161 in a direction toward the first heater terminal 1311; and a second plate 52 including a second metal and having one surface in contact with one surface of the first plate 51. The coefficient of thermal expansion of the first metal may be different from the coefficient of thermal expansion of the second metal.

According to another aspect of the present disclosure, the aerosol-generating device 10 may further comprise a fuse 60 having a first end and a second end. The heater 131 may include: a coil 1313 having one end coupled to the first heater terminal 1311; and a second heater terminal 1312 coupled to the other end of the coil 1313. The battery 16 may include a second battery terminal 162. A first end of the fuse 60 may be coupled to the second heater terminal 1312 and a second end of the fuse 60 may be coupled to the second battery terminal 162.

According to another aspect of the present disclosure, the heater 131 may further include a third heater terminal 1314 electrically connected to the second heater terminal 1312 and disposed adjacent to the first switch terminal 53.

According to another aspect of the disclosure, the first metal may have a coefficient of thermal expansion that is greater than the coefficient of thermal expansion of the second metal. When the temperature switch 50 is heated to or above the first temperature, the temperature switch 50 may bend in the direction such that the first switch terminal 53 may be in electrical contact with the third heater terminal 1314 to electrically couple to the third heater terminal 1314.

According to another aspect of the present disclosure, the fuse 60 may be electrically opened when a current greater than or equal to the off-current flows. When the first switch terminal 53 is electrically coupled to the third heater terminal 1314, a current greater than or equal to the off-current may flow through the fuse 60.

According to another aspect of the present disclosure, the aerosol-generating device 10 may further comprise a protection resistor 70. The fuse 60 and the protection resistor 70 may be connected in series between the second heater terminal 1312 and the second battery terminal 162.

According to another aspect of the disclosure, the coefficient of thermal expansion of the first metal may be less than the coefficient of thermal expansion of the second metal. The first adhesive portion 55 may be provided on at least a portion of the other surface of the first plate 51.

According to another aspect of the present disclosure, the case 101 may include a second adhesive portion 111 on one surface disposed adjacent to the other surface of the first plate 51. When the temperature switch 50 is heated to the first temperature or higher, the temperature switch 50 may be bent in a direction in which the second adhesive portion 111 is disposed so that the first adhesive portion 55 and the second adhesive portion 111 may be in contact.

The aerosol-generating device 10 according to another aspect of the present disclosure may comprise: a heater 131 configured to heat an aerosol-generating substance; a battery 16 configured to supply power to the heater 131 to enable the heater 131 to heat the aerosol-generating substance; a temperature switch 50 configured to switch an electrical connection between the heater 131 and the battery 16; and a housing 101 shaped to include the heater 131, the battery 16, and the temperature switch 50, wherein the temperature switch 50 includes: a first switch terminal 53, the first switch terminal 53 being electrically coupled to a first heater terminal 1311 of the heater 131 when the temperature switch 50 is in the first orientation; and a second switch terminal 54, the second switch terminal 54 positioned to be electrically coupled to the first battery terminal 161 of the battery 16 when the temperature switch 50 is in the first orientation, wherein the temperature switch 50 flexes relative to the first orientation when the temperature switch 50 is heated beyond a temperature threshold, and wherein the first switch terminal 53 is spaced apart from the first heater terminal 1311 to electrically decouple the first switch terminal 53 from the first heater terminal 1311 when the temperature switch 50 flexes.

Certain embodiments of the above disclosure or other embodiments are not mutually exclusive or different from each other. Any or all of the elements of the above disclosed embodiments may be combined with one another or with one another in configuration or function.

For example, the configuration "a" described in one embodiment of the present disclosure and the drawing and the configuration "B" described in another embodiment of the present disclosure and the drawing may be combined with each other. That is, although the combination between the configurations is not directly described, the combination is possible except the case where the combination is not described.

While embodiments have been described with reference to a number of exemplary embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.

Claims

1. An aerosol-generating device, the aerosol-generating device comprising:

A housing;

a heater configured to heat an aerosol-generating substance;

a battery configured to supply power to the heater; and

A temperature switch configured to switch an electrical connection between the heater and the battery,

Wherein, the temperature switch includes:

a first switch terminal positioned to be electrically coupled to a first heater terminal of the heater; and

A second switch terminal positioned to be electrically coupled to a first battery terminal of the battery,

Wherein the temperature switch is bent in a direction when the temperature switch is heated to a first temperature or higher, and

Wherein the first switch terminal is spaced apart from the first heater terminal after the temperature switch is bent in the direction to electrically disconnect the first switch terminal from the first heater terminal.

2. An aerosol-generating device according to claim 1, wherein the first temperature is higher than the evaporation temperature of the aerosol-generating substance.

3. An aerosol-generating device according to claim 1, wherein the temperature switch further comprises:

A first plate including a first metal and extending from the first battery terminal in a direction toward the first heater terminal; and

A second plate comprising a second metal and having one surface in contact with one surface of the first plate, and

Wherein the coefficient of thermal expansion of the first metal is different from the coefficient of thermal expansion of the second metal.

4. An aerosol-generating device according to claim 3, further comprising a fuse having a first end and a second end,

Wherein the heater comprises:

A coil having one end coupled to the first heater terminal; and

A second heater terminal coupled to the other end of the coil,

Wherein the battery includes a second battery terminal, and

Wherein the first end of the fuse is coupled to the second heater terminal and the second end of the fuse is coupled to the second battery terminal.

5. An aerosol-generating device according to claim 4, wherein the heater further comprises a third heater terminal electrically connected to the second heater terminal and disposed adjacent to the first switch terminal.

6. An aerosol-generating device according to claim 5, wherein the first metal has a higher coefficient of thermal expansion than the second metal, and

Wherein when the temperature switch is heated to or above the first temperature, the temperature switch bends in the direction such that the first switch terminal is in electrical contact with the third heater terminal to electrically couple to the third heater terminal.

7. An aerosol-generating device according to claim 5, wherein the fuse is electrically opened when a current greater than or equal to an off-current flows, and

Wherein when the first switch terminal is electrically coupled to the third heater terminal, a current greater than or equal to the off current flows through the fuse.

8. An aerosol-generating device according to claim 5, further comprising a protection resistor,

Wherein the fuse and the protection resistor are connected in series between the second heater terminal and the second battery terminal.

9. An aerosol-generating device according to claim 3, wherein the first metal has a lower coefficient of thermal expansion than the second metal, and

Wherein a first adhesive portion is provided on at least a portion of the other surface of the first plate.

10. An aerosol-generating device according to claim 9, wherein the housing comprises a second adhesive portion on one surface arranged adjacent to the other surface of the first plate, and

Wherein when the temperature switch is heated to the first temperature or higher, the temperature switch is bent in a direction in which the second adhesive portion is provided so that the first adhesive portion and the second adhesive portion are in contact.

11. An aerosol-generating device, the aerosol-generating device comprising:

a heater configured to heat an aerosol-generating substance;

A battery configured to supply power to the heater to enable the heater to heat the aerosol-generating substance;

A temperature switch configured to switch an electrical connection between the heater and the battery; and

A housing shaped to include the heater, the battery, and the temperature switch,

Wherein, the temperature switch includes:

a first switch terminal electrically coupled to a first heater terminal of the heater when the temperature switch is in a first orientation; and

A second switch terminal positioned to be electrically coupled to a first battery terminal of the battery when the temperature switch is in the first orientation,

Wherein the temperature switch flexes relative to the first orientation when the temperature switch is heated to exceed a temperature threshold, an

Wherein the first switch terminal is spaced apart from the first heater terminal to electrically disconnect the first switch terminal from the first heater terminal when the temperature switch is bent.