KR102862256B1 - Aerosol generating device - Google Patents

Abstract

An aerosol generating device is disclosed. The aerosol generating device of the present disclosure comprises: a housing; a heater for heating an aerosol production material; a battery for supplying power to the heater; and a temperature switch for switching electrical connection between the heater and the battery, wherein the temperature switch comprises a first switch terminal in contact with a first heater terminal of the heater and electrically connected to the first heater terminal, and a second switch terminal electrically connected to a first battery terminal of the battery, and is configured to bend in one direction when heated to a first temperature or higher, and the first switch terminal can be electrically separated (opened) from the first heater terminal by being spaced apart from the first heater terminal as the temperature switch is bent in one direction.

Description

Aerosol generating device {AEROSOL GENERATING DEVICE}

The present disclosure relates to an aerosol generating device.

An aerosol generator is designed to extract a specific component from a medium or substance through an aerosol. The medium may contain various components. The components contained in the medium may include various flavoring substances. For example, the components contained in the medium may include nicotine, herbal ingredients, and/or coffee ingredients. Recently, extensive research has been conducted on such aerosol generators.

The present disclosure aims to solve the above-mentioned and other problems.

Another object may be to provide an aerosol generating device capable of cutting off power supplied to a heater based on the remaining amount of aerosol generating material.

Another purpose may be to provide an aerosol generating device that can prevent overheating of the heater when the remaining amount of aerosol generating material is insufficient.

According to one aspect of the present disclosure for achieving the above-described object, an aerosol generating device comprises: a housing; a heater for heating an 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 comprises a first switch terminal that is in contact with a first heater terminal of the heater and electrically connected to the first heater terminal, and a second switch terminal that is electrically connected to a first battery terminal of the battery, and is bent in one direction when heated to a first temperature or higher, and the first switch terminal can be electrically separated (opened) from the first heater terminal by being spaced apart from the first heater terminal as the temperature switch is bent in one direction.

According to at least one embodiment of the present disclosure, power supplied to the heater can be cut off based on the remaining amount of aerosol generating material.

According to at least one embodiment of the present disclosure, overheating of the heater can be prevented when the remaining amount of aerosol generating material is insufficient.

Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will be apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

FIG. 1 is a block diagram of an aerosol generating device according to one embodiment of the present disclosure.
FIGS. 2 to 4 are drawings for reference in the description of an aerosol generating device according to embodiments of the present disclosure.
FIGS. 5 to 7 are drawings for reference in the description of a stick according to embodiments of the present disclosure.
FIG. 8 is a drawing showing the structure of an aerosol generating device according to one embodiment of the present disclosure.
FIGS. 9 to 14 are drawings for reference in the description of an aerosol generating device according to one embodiment of the present disclosure.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components are assigned the same reference numerals, and redundant descriptions thereof will be omitted.

The suffixes "module" and "part" used for components in the following description may be assigned or used interchangeably solely for the convenience of writing the specification. "Module" and "part" do not, by themselves, have distinct meanings or roles.

In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate understanding of the embodiments disclosed in this specification, and the technical concepts disclosed in this specification are not limited by the attached drawings. It should be understood that the attached drawings include all modifications, equivalents, and substitutes included within the spirit and technical scope of the present disclosure.

Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components. However, these components are not limited by these terms. These terms are used solely to distinguish one component from another.

When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, although it should be understood that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

FIG. 1 is a block diagram of an aerosol generating device according to one embodiment of the present disclosure.

Referring to FIG. 1, the aerosol generating device (10) may include 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 control unit (17).

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

The communication interface (11) may include at least one communication module for communication with an external device and/or a network. 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 include a communication module for wireless communication such as wireless fidelity (WiFi), Bluetooth, Bluetooth low energy (BLE), Zigbee, and near field communication (NFC).

The input/output interface (12) may include an input device that receives commands from a user and/or an output device that outputs information to the user. For example, the input device may include a touch panel, a physical button, a microphone, etc. For example, the output device may include a display device that outputs visual information such as a display or a light emitting diode (LED), an audio device that outputs auditory information such as a speaker or a buzzer, a motor that outputs tactile information such as a haptic effect, etc.

The input/output interface (12) can transmit data corresponding to a command input from a user through an input device to other component(s) of the aerosol generator (10). The input/output interface (12) can output information corresponding to data received from other component(s) of the aerosol generator (10) through an output device.

The aerosol generating module (13) can generate an aerosol from an aerosol generating material. Here, the aerosol generating material may refer to any one material or a combination of two or more materials in various states such as a liquid state, a solid state, and a gel state that can generate an aerosol.

The liquid aerosol-generating substance may, in one embodiment, be a liquid comprising a tobacco-containing substance including volatile tobacco flavor components. The liquid aerosol-generating substance may, in another embodiment, be a liquid comprising a non-tobacco substance. For example, the liquid aerosol-generating substance may comprise water, a solvent, nicotine, plant extracts, flavorings, flavoring agents, vitamin mixtures, and the like.

The solid aerosol-generating material may include a solid material based on tobacco raw materials, such as a leaf sheet, a tobacco peel, or a granule. In addition, the solid aerosol-generating material may include a solid material containing a taste modifier, a flavoring agent, or the like. For example, the taste modifier may include calcium carbonate, sodium bicarbonate, calcium oxide, or the like. For example, the flavoring agent may include a natural material, such as herbal granules, or silica, zeolite, dextrin, or the like, which contain flavoring ingredients.

Additionally, the aerosol generating material may further comprise an aerosol forming agent, such as glycerin or propylene glycol.

The aerosol generating module (13) may include at least one heater (131).

The aerosol generating module (13) may include an electrically resistive heater. For example, the electrically resistive heater may include at least one electrically conductive track. The electrically resistive heater may be heated by a current flowing through the electrically conductive track. In this case, the aerosol generating material may be heated by the heated electrically resistive heater.

The electrically conductive track may include an electrically resistive material. As an example, the electrically conductive track may be formed of a metallic material. As another example, the electrically conductive track may be formed of a ceramic material, carbon, a metal alloy, or a composite of a ceramic material and a metal.

The electrical resistive heater may include electrically conductive tracks formed in various shapes. For example, the electrically conductive tracks may be formed in 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 include a heater utilizing an induction heating method. For example, the induction heating heater may include an electrically conductive coil. The induction heating heater may generate an alternating magnetic field whose direction periodically changes by controlling the current flowing through the electrically conductive coil. At this time, when the alternating magnetic field is applied to a magnetic body, energy loss due to eddy current loss and hysteresis loss may occur in the magnetic body. In addition, as the lost energy is released as thermal energy, an aerosol generating material 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.

Meanwhile, the aerosol generating module (13) can generate an aerosol from an aerosol generating material by generating ultrasonic vibration.

The aerosol generating module (13) may be named a cartomizer, an atomizer, a vaporizer, etc.

When the aerosol generating device (10) is composed of a cartridge (200) containing an aerosol generating material and a main body (100), the aerosol generating module (13) can be located in at least one of the main body (100) and the cartridge (200).

The memory (14) can store programs for each signal processing and control within the control unit (17). The memory (14) can store data processed in the control unit (17) and data to be processed.

For example, the memory (14) can store application programs designed for the purpose of performing various tasks that can be processed by the control unit (17). The memory (14) can selectively provide some of the stored application programs upon request from the control unit (17).

For example, the memory (14) may store the operating time of the aerosol generator (10), the maximum number of puffs, the current number of puffs, at least one temperature profile, data about the user's inhalation pattern, data about charging/discharging, etc. Here, a puff may refer to a user's inhalation. Inhalation may refer to a situation in which the user draws air into the user's oral cavity, nasal cavity, or lungs through the mouth or nose.

The memory (14) may include at least one of volatile memory (e.g., DRAM, SRAM, SDRAM, etc.) or non-volatile memory (e.g., flash memory, hard disk drive (HDD), solid-state drive (SSD).

The sensor module (15) may include at least one sensor.

For example, the sensor module (15) may include a sensor that detects a puff (hereinafter, puff sensor, 151). At this time, the puff sensor (151) may be implemented by a proximity sensor such as an IR sensor, a pressure sensor, a gyro sensor, an acceleration sensor, a magnetic field sensor, etc.

For example, the sensor module (15) may include a sensor (hereinafter, temperature sensor) that detects the temperature of the heater (131) included in the aerosol generating module (13), the temperature of the aerosol generating material, etc.

At this time, the heater (131) included in the aerosol generating module (13) may also function as a temperature sensor. For example, the electrically resistive material of the heater (131) may be a material having a temperature coefficient of resistance (TCR). The sensor module (15) can sense the temperature of the heater (131) by measuring the resistance of the heater (131), which varies depending on the temperature.

For example, if a stick can be inserted into the main body of the aerosol generating device (10), the sensor module (15) may include a sensor that detects the insertion of the stick (hereinafter, a stick detection sensor).

For example, when the aerosol generator (10) includes a cartridge (200), the sensor module (15) may include a sensor (hereinafter, cartridge detection sensor) that detects the mounting/demounting, position, etc. of the cartridge (200) with respect to the main body (100).

At this time, the stick detection sensor and/or the cartridge detection sensor may be implemented by an inductance-based sensor, a capacitive sensor, a resistance sensor, a Hall sensor (hall IC) using the Hall effect, etc. According to one embodiment of the present invention, the cartridge detection sensor may include a connection terminal. The connection terminal is provided in the main body (100) and can be electrically connected to the electrodes provided in the cartridge (200) as the cartridge (200) is coupled to the main body (100). The connection terminal may also function as a cartridge detection sensor. For example, the sensor module (15) can detect the attachment/detachment of the cartridge (200) to the main body (100) based on the current flowing in the connection terminal, the voltage applied to the connection terminal, etc.

For example, the sensor module (15) may include a voltage sensor that detects voltage applied to a component (e.g., battery (16)) provided in the aerosol generator (10) and/or a current sensor that detects current.

For example, the sensor module (15) may include at least one sensor (hereinafter, motion sensor) that detects the movement of the aerosol generating device (10). At this time, the motion sensor may be implemented by at least one of a gyro sensor and an acceleration sensor.

The battery (16) can supply power used for the operation of the aerosol generator (10) under the control of the control unit (17). The battery (16) can supply power to other components provided in the aerosol generator (10). For example, the battery (16) can supply power to a communication module included in the communication interface (11), an output device included in the input/output interface (12), a heater (131) included in the aerosol generator module (13), etc.

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, if the battery (16) is rechargeable, the charge rate (C-rate) of the battery (16) may be 10C, and the discharge rate (C-rate) may be 10C to 20C, but is not limited thereto. In addition, for stable use, the battery (16) may be manufactured so that 80% or more of the total capacity can be secured even after 2,000 charge/discharge cycles.

The aerosol generator (10) may further include a battery protection module (Protection Circuit Module, PCM), which is a circuit for protecting the battery (16). The battery protection module (PCM) may be positioned adjacent to the upper surface of the battery (16). For example, the battery protection module (PCM) may block the electrical path to the battery (16) when a short circuit occurs in a circuit connected to the battery (16), when overvoltage is applied to the battery (16), when overcurrent flows to the battery (16), etc., in order to prevent overcharging and overdischarging of the battery (16).

The aerosol generator (10) may further include a charging terminal to which power supplied from an external source is input. For example, the charging terminal may be formed on one side of the main body of the aerosol generator (10). The aerosol generator (10) may charge the battery (16) using the power supplied through the charging terminal. At this time, the charging terminal may be configured as a wired terminal for USB communication, a pogo pin, or the like.

The aerosol generator (10) can also wirelessly receive power supplied from an external source via a communication interface (11). For example, the aerosol generator (10) can wirelessly receive power using an antenna included in a communication module for wireless communication. The aerosol generator (10) can charge a battery (16) using the wirelessly supplied power.

The control unit (17) can control the overall operation of the aerosol generator (10). The control unit (17) can be connected to each component provided in the aerosol generator (10). The control unit (17) can control the overall operation of each component by transmitting and/or receiving signals between each component.

The control unit (17) may include at least one processor. The control unit (17) may control the overall operation of the aerosol generator (10) using the processor. Here, the processor may be a general processor such as a central processing unit (CPU). Of course, the processor may be a dedicated device such as an ASIC or another hardware-based processor.

The control unit (17) can perform any one of the multiple functions of the aerosol generator (10). For example, the control unit (17) can perform any one of the multiple functions of the aerosol generator (10) (e.g., preheating function, heating function, charging function, cleaning function, etc.) according to the status of each component provided in the aerosol generator (10), a user command received through the input/output interface (12), etc.

The control unit (17) can control the operation of each component provided in the aerosol generating device (10) based on data stored in the memory (14). For example, the control unit (17) can control a predetermined power to be supplied from the battery (16) to the aerosol generating module (13) for a predetermined period of time based on data on a temperature profile, a user's inhalation pattern, etc. stored in the memory (14).

The control unit (17) can determine whether a puff is present through the puff sensor included in the sensor module (15). For example, the control unit (17) can check temperature changes, flow changes, pressure changes, voltage changes, etc. within the aerosol generator (10) based on the sensing values of the puff sensor. The control unit (17) can determine whether a puff is present based on the results confirmed based on the sensing values of the puff sensor.

The control unit (17) can control the operation of each component provided in the aerosol generator (10) depending on whether a puff is generated and/or the number of puffs. For example, the control unit (17) can control the temperature of the heater (131) to be changed or maintained based on the temperature profile stored in the memory (14).

The control unit (17) can control the power supply to the heater (131) to be cut off according to predetermined conditions. For example, when the stick is removed, when the cartridge (200) is separated, when the number of puffs reaches a preset maximum number of puffs, when no puffs are detected for a preset period of time, when the remaining capacity of the battery (16) is less than a preset value, etc., the control unit (17) can control the power supply to the heater (131) to be cut off.

The control unit (17) can calculate the remaining power capacity stored in the battery (16). For example, the control unit (17) can calculate the remaining power amount of the battery (16) based on the sensing values of the voltage sensor and/or current sensor included in the sensor module (15).

The control unit (17) can control power to be supplied to the heater (131) using at least one of the pulse width modulation (PWM) method and the proportional-integral-differential (PID) method.

For example, the control unit (17) can control a current pulse having a predetermined frequency and duty ratio to be supplied to the heater (131) using the PWM method. At this time, the control unit (17) can control the power supplied to the heater (131) by adjusting the frequency and duty ratio of the current pulse.

For example, the control unit (17) can determine the target temperature that is the target of control based on the temperature profile. At this time, the control unit (17) can control the power supplied to the heater (131) by using the PID method, which is a feedback control method using the difference value between the temperature of the heater (131) and the target temperature, the value obtained by integrating the difference value over time, and the value obtained by differentiating the difference value over time.

For example, the control unit (17) can control the power supplied to the heater (131) based on the temperature profile. The control unit (17) can control the length of the heating section for heating the heater (131), the amount of power supplied to the heater (131) during the heating section, etc. The control unit (17) can control the power supplied to the heater (131) based on the target temperature of the heater (131).

Meanwhile, the PWM method and the PID method have been described as examples of control methods for supplying power to the heater (131), but the present invention is not limited thereto, and various control methods such as the proportional-integral (PI) method and the proportional-differential (PD) method can be used.

The control unit (17) can determine the temperature of the heater (131) and adjust the power supplied to the heater (131) according to the temperature of the heater (131). For example, the control unit (17) can determine the temperature of the heater (131) by checking the resistance value of the heater (131), the current flowing through the heater (131), and the voltage applied to the heater (131).

Meanwhile, the control unit (17) can control power to be supplied to the heater (131) according to preset conditions. For example, if a cleaning function for cleaning the space into which a stick is inserted is selected according to a command input from a user through the input/output interface (12), the control unit (17) can control a predetermined power to be supplied to the heater (131).

FIGS. 2 to 4 are drawings for reference in the description of an aerosol generating device according to embodiments of the present disclosure.

According to various embodiments of the present invention, the aerosol generating device (10) may include a main body (100) and/or a cartridge (200).

Referring to FIG. 2, an aerosol generating device (10) according to one embodiment may include a main body (100) configured such that a stick (20) can be inserted into a space formed by a housing (101).

The stick (20) may be similar to a typical combustible cigarette. For example, the stick (20) may be divided into a first portion containing an aerosol-generating substance and a second portion containing a filter or the like. Alternatively, the second portion of the stick (20) may also contain an aerosol-generating substance. For example, an aerosol-generating substance in the form of granules or capsules may be inserted into the second portion.

The entire first part may be inserted into the aerosol generating device (10), and the second part 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 part and the second part may be inserted. The user may inhale the aerosol while holding the second part in his or her mouth. At this time, the aerosol is generated by external air passing through the first part, and the generated aerosol may be delivered to the user's mouth by passing through the second part.

The main body (100) may be formed in a structure that allows external air to flow into the interior of the main body (100) when the stick (20) is inserted. At this time, the external air that flows into the main body (100) may pass through the stick (20) and flow into the user's mouth.

The heater may be positioned in the body (100) corresponding to the position of the stick (20) when the stick (20) is inserted into the body (100). In this drawing, the heater is illustrated as an electrically conductive heater (110) including a needle-shaped electrically conductive track, but the present invention is not limited thereto.

The heater can heat the inside and/or outside of the stick (20) using power supplied from the battery (16). At this time, an aerosol can be generated from the heated stick (20). At this time, the user can inhale the aerosol containing tobacco flavor by inhaling one end of the stick (20) with the mouth.

Meanwhile, the control unit (17) can control power to be supplied to the heater even when the stick (20) is not inserted, according to preset conditions. For example, if a cleaning function for cleaning the space where the stick (20) is inserted is selected according to a command input from a user through the input/output interface (12), the control unit (17) can control power to be supplied to the heater at a predetermined level.

The control unit (17) can monitor the number of puffs based on the sensing value of the puff sensor from the time the stick (20) is inserted.

The control unit (17) can initialize the current number of puffs stored in the memory (14) when the inserted stick (20) is removed.

Referring to FIG. 3, an aerosol generating device (10) according to one embodiment may include a main body (100) that supports a cartridge (200) and a cartridge (200) that holds an aerosol generating material.

The cartridge (200) may be configured to be detachably attached to the main body (100) according to one embodiment. The cartridge (200) may be configured integrally with the main body (100) according to another embodiment. For example, at least a portion of the cartridge (200) may be inserted into an internal space formed by the housing (101) of the main body (100), so that the cartridge (200) may be mounted on the main body (100).

The main body (100) may be formed in a structure that allows external air to flow into the interior of the main body (100) when the cartridge (200) is inserted. At this time, the external air that flows into the main body (100) may pass through the cartridge (200) and flow into the user's mouth.

The control unit (17) can determine whether the cartridge (200) is mounted/removed through the cartridge detection sensor included in the sensor module (15). For example, the cartridge detection sensor can transmit a pulse current through one terminal connected to the cartridge (200). At this time, the cartridge detection sensor can detect whether the cartridge (200) is connected based on whether a pulse current is received through another terminal.

The cartridge (200) may include a heater (210) for heating an aerosol-generating substance and/or a storage unit (220) for holding the aerosol-generating substance. For example, a liquid delivery means for impregnating (containing) the aerosol-generating substance may be disposed inside the storage unit (220). The electrically conductive track of the heater (210) may be formed in a structure that winds the liquid delivery means. At this time, as the liquid delivery means is heated by the heater (210), an aerosol may be generated. Here, the liquid delivery means may include a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

The cartridge (200) may include an insertion space (230) configured to allow the stick (20) to be inserted. For example, the cartridge (200) may include an insertion space formed by an inner wall (not shown) extending circumferentially along the direction in which the stick (20) is inserted. In this case, the insertion space may be formed by having the inner side of the inner wall open vertically. The stick (20) may be inserted into the insertion space (230) formed by the inner wall.

The insertion space into which the stick (20) is inserted can be formed in a shape corresponding to the shape of a portion of the stick (20) inserted into the insertion space. For example, when the stick (20) is formed in a cylindrical shape, the insertion space can be formed in a cylindrical shape.

When the stick (20) is inserted into the insertion space, the outer surface of the stick (20) is surrounded by the inner wall and can come into contact with the inner wall.

A portion of the stick (20) can be inserted into the insertion space (230) of the cartridge (200), and the remaining portion can be exposed to the outside.

The user can inhale the aerosol by holding one end of the stick (20) in his/her mouth. The aerosol generated by the heater (210) can pass through the stick (20) and be delivered to the user's mouth. At this time, while the aerosol passes through the stick (20), a substance contained in the stick (20) can be added to the aerosol, and the aerosol with the substance added can be inhaled into the user's mouth through one end of the stick (20).

Referring to FIG. 4, an aerosol generating device (10) according to one embodiment may include a main body (100) that supports a cartridge (200) and a cartridge (200) that holds an aerosol generating material. The main body (100) may be configured such that a stick (20) can be inserted into an insertion space (130).

The aerosol generating device (10) may include a first heater that heats an aerosol generating material stored in a cartridge (200). For example, when a user inhales one end of the stick (20) with his or her mouth, the aerosol generated by the first heater may pass through the stick (20). At this time, while the aerosol passes through the stick (20), a flavor may be added to the aerosol. The flavored aerosol may be inhaled into the user's oral cavity through one end of the stick (20).

Meanwhile, according to another embodiment, the aerosol generating device (10) may include a heater for heating the aerosol generating material stored in the cartridge (200) and a heater for heating the stick (20) inserted into the main body (100). For example, the aerosol generating device (10) may generate an aerosol by heating the aerosol generating material stored in the cartridge (200) and the stick (20), respectively, through a plurality of heaters.

Figures 5 to 7 are drawings that are referenced in the description of a stick according to embodiments of the present disclosure. Detailed descriptions of overlapping contents in Figures 5 to 7 will be omitted.

Referring to FIG. 5, a stick (20) according to one embodiment may include a tobacco rod (21) and a filter rod (22). The first part described above with reference to FIG. 2 may include the tobacco rod (21). The second part described above with reference to FIG. 2 may include the filter rod (22).

Although the filter rod (22) is illustrated as a single segment in FIG. 5, it is not limited thereto. In other words, the filter rod (22) may be composed of multiple segments. For example, the filter rod (22) may include a first segment that cools the aerosol and a second segment that filters a predetermined component contained within the aerosol. In addition, the filter rod (22) may further include at least one segment that performs a different function, if necessary.

The diameter of the stick (20) is within the range of 5 mm to 9 mm, and the length may be about 48 mm, but is not limited thereto. For example, the length of the tobacco rod (21) may be about 12 mm, the length of the first segment of the filter rod (22) may be about 10 mm, the length of the second segment of the filter rod (22) may be about 14 mm, and the length of the third segment of the filter rod (22) may be about 12 mm, but is not limited thereto.

The stick (20) may be wrapped by at least one wrapper (24). The wrapper (24) may have at least one hole formed therein through which outside air is introduced or internal gas is discharged. As an example, the stick (20) may be wrapped by one wrapper (24). As another example, the stick (20) may be wrapped by two or more wrappers (24) in an overlapping manner. 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, 244). The tobacco rod (21) and the filter rod (22) wrapped by individual wrappers may be combined. The entire stick (20) may be repackaged by a third wrapper (245). If each filter load (22) is composed of multiple segments, each segment can be wrapped by an individual wrapper (242, 243, 244). The entire stick (20) in which the segments wrapped by the individual wrappers are combined can be re-wrapped by another wrapper.

The first wrapper (241) and the second wrapper (242) may be made of general filter paper. For example, the first wrapper (241) and the second wrapper (242) may be porous paper or non-porous paper. Additionally, the first wrapper (241) and the second wrapper (242) may be made of oil-resistant paper and/or aluminum composite packaging material.

The third wrapper (243) may be made of hard paper. For example, the basis weight of the third wrapper (243) may be within the range of 88 g/m2 to 96 g/m2. For example, the basis weight of the third wrapper (243) may be within the range of 90 g/m2 to 94 g/m2. In addition, the thickness of the third wrapper (243) may be within the range of 120 μm to 130 μm. For example, the thickness of the third wrapper (243) may be 125 μm.

The fourth wrapper (244) may be made of a hard, oil-resistant paper. For example, the basis weight of the fourth wrapper (244) may be within the range of 88 g/m2 to 96 g/m2. For example, the basis weight of the fourth wrapper (244) may be within the range of 90 g/m2 to 94 g/m2. In addition, the thickness of the fourth wrapper (244) may be within the range of 120 μm to 130 μm. For example, the thickness of the fourth wrapper (244) may be 125 μm.

The fifth wrapper (245) may be made of sterilized paper (MFW). Here, the sterilized paper (MFW) may refer to paper that is specially manufactured to have improved tensile strength, water resistance, smoothness, etc. compared to general paper. For example, the basis weight of the fifth wrapper (245) may be within the range of 57 g/m2 to 63 g/m2. For example, the basis weight of the fifth wrapper (245) may be 60 g/m2. In addition, the thickness of the fifth wrapper (245) may be within the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper (245) may be 67 μm.

The fifth wrapper (245) may be coated with a predetermined material. Here, an example of the predetermined material may be silicone, but is not limited thereto. For example, silicone may have properties such as heat resistance with little change depending on temperature, oxidation resistance without oxidation, resistance to various chemicals, water repellency, or electrical insulation. However, even if it is not silicone, any material having the aforementioned properties may be applied or coated onto the fifth wrapper (245) without limitation.

The fifth wrapper (245) can prevent the stick (20) from burning. For example, if the tobacco rod (21) is heated by the heater (110), there is a possibility that the stick (20) will burn. Specifically, if the temperature rises above the ignition point of any of the materials contained in the tobacco rod (21), the stick (20) may burn. Even in this case, since the fifth wrapper (245) includes a non-combustible material, the phenomenon of the stick (20) burning can be prevented.

In addition, the fifth wrapper (245) can prevent the main body (100) from being contaminated by substances generated from the stick (20). Liquid substances can be generated within the stick (20) by the user's puff. For example, liquid substances (e.g., moisture, etc.) can be generated by cooling the aerosol generated from the stick (20) by external air. As the fifth wrapper (245) wraps the stick (20), liquid substances generated within the stick (20) can be prevented from leaking out of the stick (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 agent, such as menthol or a humectant, may be added to the tobacco rod (21) by spraying it onto the tobacco rod (21).

The tobacco rod (21) can be manufactured in various ways. For example, the tobacco rod (21) can be manufactured as a sheet. For example, the tobacco rod (21) can be manufactured as a strand. For example, the tobacco rod (21) can be manufactured as a cut tobacco sheet that has been finely chopped. For example, the tobacco rod (21) can be surrounded by a heat-conducting material. For example, the heat-conducting material can be a metal foil such as aluminum foil, but is not limited thereto. For example, the heat-conducting material surrounding the tobacco rod (21) can evenly distribute heat transferred to the tobacco rod (21) to improve the heat conductivity applied to the tobacco rod. This can improve the taste of the tobacco. The heat-conducting material surrounding the tobacco rod (21) can function as a susceptor heated by an induction heater. At this time, although not shown in the drawing, the tobacco rod (21) may further include an additional susceptor in addition to the heat-conducting material surrounding the outside.

The filter rod (22) may be a cellulose acetate filter. Meanwhile, there is no limitation on the shape of the filter rod (22). For example, the filter rod (22) may be a cylindrical rod. For example, the filter rod (22) may be a tube-shaped rod including a hollow portion therein. For example, the filter rod (22) may be a recessed rod. When the filter rod (22) is composed of a plurality of segments, at least one of the segments may be manufactured in a different shape.

The first segment of the filter rod (22) may be a cellulose acetate filter. For example, the first segment may be a tubular structure including a hollow space therein. When the heater (110) is inserted into the first segment, the internal material of the tobacco rod (21) may be prevented from being pushed back, and a cooling effect of the aerosol may also be generated. The diameter of the hollow space included in the first segment may be an appropriate diameter within the range of 2 mm to 4.5 mm, but is not limited thereto.

The length of the first segment may be any length within the range of 4 mm to 30 mm, but is not limited thereto. For example, the length of the first segment may be 10 mm, but is not limited thereto.

The second segment of the filter rod (22) cools the aerosol generated by the heater (110) heating the tobacco rod (21). Accordingly, the user can inhale the aerosol cooled to an appropriate temperature.

The length or diameter of the second segment may vary depending on the shape of the stick (20). For example, the length of the second segment may be appropriately selected within a range of 7 mm to 20 mm. Preferably, the length of the second segment may be approximately 14 mm, but is not limited thereto.

The second segment can be manufactured by weaving polymer fibers. In this case, a flavoring agent may be applied to the polymer fibers. Alternatively, the second segment can be manufactured by weaving together a separate fiber coated with a flavoring agent and a polymer fiber. Alternatively, the second segment can be formed by a crimped polymer 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.

As the second segment is formed by a woven polymer fiber or a crimped polymer sheet, the second segment may include a single or multiple longitudinally extending channels. Here, a channel may mean a passage through which a gas (e.g., air or an aerosol) passes.

For example, the second segment made of a compressed polymer sheet can be formed from a material having a thickness of between about 5 μm and about 300 μm, for example between about 10 μm and about 250 μm. Furthermore, the total surface area of the second segment can be between about 300 mm2/mm and about 1000 mm2/mm. Furthermore, the aerosol-cooling element can be formed from a material having a specific surface area of between about 10 mm2/mg and about 100 mm2/mg.

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

The third segment of the filter rod (22) may be a cellulose acetate filter. The length of the third segment may be suitably selected within the range of 4 mm to 20 mm. For example, the length of the third segment may be approximately 12 mm, but is not limited thereto.

The filter rod (22) may be manufactured to generate a flavor. For example, a flavoring agent may be sprayed onto the filter rod (22). For example, a separate fiber coated with a flavoring agent may be inserted into the interior of the filter rod (22).

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

Referring to FIG. 6, a stick (30) according to one embodiment may further include a shear plug (33). The shear plug (33) is located on one side of the tobacco rod (31) facing the filter rod (32). The shear plug (33) can prevent the tobacco rod (31) from escaping to the outside. The shear plug (33) can prevent liquefied aerosol from the tobacco rod (31) from flowing into the aerosol generating device (10) during smoking.

The filter load (32) may include a first segment (321) and a second segment (322). The first segment (321) may correspond to the first segment of the filter load (22) of FIG. 5. The second segment (322) may correspond to the third segment of the filter load (22) of FIG. 5.

The diameter and overall length of the stick (30) may correspond to the diameter and overall length of the stick (20) of FIG. 5. For example, the length of the shear plug (33) may be about 7 mm, the length of the tobacco rod (31) may be about 15 mm, the length of the first segment (321) may be about 12 mm, and the length of the second segment (322) may be about 14 mm, but is not limited thereto.

The stick (30) may be wrapped by at least one wrapper (35). The wrapper (35) may have at least one hole formed therein through which external air may flow in or internal gas may flow out. For example, the shear plug (33) may be wrapped by a first wrapper (351), the tobacco rod (31) may be wrapped by a second wrapper (352), the first segment (321) may be wrapped by a third wrapper (353), and the second segment (322) may be wrapped by a fourth wrapper (354). In addition, the entire stick (30) may be rewrapped by a fifth wrapper (355).

Additionally, at least one perforation (36) may be formed in the fifth wrapper (355). For example, the perforation (36) may be formed in an area surrounding the tobacco rod (31), but is not limited thereto. For example, the perforation (36) may serve to transfer heat generated by the heater (210) illustrated in FIG. 3 to the interior of the tobacco rod (31).

Additionally, the second segment (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 a function of generating an aerosol. For example, the capsule (34) may have a structure in which a liquid containing a flavor is encapsulated in a film. The capsule (34) may have a spherical or cylindrical shape, but is not limited thereto.

The first wrapper (351) may be a general filter paper combined with a metal foil, such as aluminum foil. For example, the overall thickness of the first wrapper (351) may be within a range of 45 μm to 55 μm. For example, the overall thickness of the first wrapper (351) may be 50.3 μm. In addition, the thickness of the metal foil of the first wrapper (351) may be within a 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. In addition, the basis weight of the first wrapper (351) may be within a range of 50 g/m2 to 55 g/m2. For example, the basis weight of the first wrapper (351) may be 53 g/m2.

The second wrapper (352) and the third wrapper (353) can be made of general filter paper. For example, the second wrapper (352) and the third wrapper (353) can be porous paper or non-porous paper.

For example, the porosity of the second wrapper (352) may be 35000 CU, but is not limited thereto. In addition, the thickness of the second wrapper (352) may be within a range of 70 um to 80 um. For example, the thickness of the second wrapper (352) may be 78 um. In addition, the basis weight of the second wrapper (352) may be within a range of 20 g/m2 to 25 g/m2. For example, the basis weight of the second wrapper (352) may be 23.5 g/m2.

For example, the porosity of the third wrapper (353) may be, but is not limited to, 24000 CU. In addition, the thickness of the third wrapper (353) may be within a range of 60 um to 70 um. For example, the thickness of the third wrapper (353) may be 68 um. In addition, the basis weight of the third wrapper (353) may be within a range of 20 g/m2 to 25 g/m2. For example, the basis weight of the third wrapper (353) may be 21 g/m2.

The fourth wrapper (354) may be made of PLA laminate. Here, the PLA laminate may refer to three layers of paper including a paper layer, a PLA layer, and a paper layer. For example, the thickness of the fourth wrapper (354) may be within a range of 100 μm to 120 μm. For example, the thickness of the fourth wrapper (354) may be 110 μm. In addition, the basis weight of the fourth wrapper (354) may be within a range of 80 g/m2 to 100 g/m2. For example, the basis weight of the fourth wrapper (354) may be 88 g/m2.

The fifth wrapper (355) may be made of sterilized paper (MFW). Here, the sterilized paper (MFW) may refer to paper that is specially manufactured to have improved tensile strength, water resistance, smoothness, etc. compared to general paper. For example, the basis weight of the fifth wrapper (355) may be within the range of 57 g/m2 to 63 g/m2. For example, the basis weight of the fifth wrapper (355) may be 60 g/m2. In addition, the thickness of the fifth wrapper (355) may be within the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper (355) may be 67 μm.

The fifth wrapper (355) may be coated with a predetermined material. Here, an example of the predetermined material may be silicone, but is not limited thereto. For example, silicone has properties such as heat resistance with little change depending on temperature, oxidation resistance without oxidation, resistance to various chemicals, water repellency, and electrical insulation. However, even if it is not silicone, any material having the aforementioned properties may be applied (or coated) to the fifth wrapper (355) without limitation.

The shear plug (33) may be made of cellulose acetate. For example, the shear plug (33) may be made by adding a plasticizer (e.g., triacetin) to cellulose acetate tow. The mono denier of the filaments constituting the cellulose acetate tow may be within a range of 1.0 to 10.0. For example, the mono denier of the filaments constituting the cellulose acetate tow may be within a range of 4.0 to 6.0. For example, the mono denier of the filaments of the shear plug (33) may be 5.0. In addition, the cross-section of the filaments constituting the shear plug (33) may be Y-shaped. The total denier of the shear plug (33) may be within a range of 20,000 to 30,000. For example, the total denier of the shear plug (33) may be within the range of 25,000 to 30,000. For example, the total denier of the shear plug (33) may be 28,000.

Additionally, if necessary, the shear plug (33) may include at least one channel. The cross-sectional shape of the channel of the shear plug (330) may be manufactured 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 below.

The first segment (321) may be made of cellulose acetate. For example, the first segment may be a tubular structure having a hollow interior. The first segment (321) may be made by adding a plasticizer (e.g., triacetin) to cellulose acetate tow. For example, the mono denier and total denier of the first segment (321) may be the same as the mono denier and total denier of the shear plug (33).

The second segment (322) may be made of cellulose acetate. The mono denier of the filaments constituting the second segment (322) may be within a range of 1.0 to 10.0. For example, the mono denier of the filaments of the second segment (322) may be within a range of 8.0 to 10.0. For example, the mono denier of the filaments of the second segment (322) may be 9.0. In addition, the cross-section of the filaments of the second segment (322) may be Y-shaped. The total denier of the second segment (322) may be within a range of 20,000 to 30,000. For example, the total denier of the second segment (322) may be 25,000.

Referring to FIG. 7, the stick (40) may include a medium portion (410). The stick (40) may include a cooling portion (420). The stick (40) may include a filter portion (430).

The cooling unit (420) may be placed between the medium unit (410) and the filter unit (430). The stick (40) may include a wrapper (440). The wrapper (440) may wrap the medium unit (410). The wrapper (440) may wrap the cooling unit (420). The wrapper (440) may wrap the filter unit (430). The stick (40) may have a cylindrical shape.

The medium portion (410) may include a medium (411). The medium portion (410) may include a first support portion (413). The medium portion (410) may include a second support portion (415). The medium (411) may be arranged between the first support portion (413) and the second support portion (415). The first support portion (413) may be arranged at one end of the stick (40). The length of the medium portion (410) may be 24 mm.

The medium (411) may include a variety of materials. The materials included in the medium may be flavoring materials of various components. The medium (411) may be composed of a plurality of granules. Each of the plurality of granules may have a size of 0.4 mm to 1.12 mm. The medium (411) may be filled with granules to an extent of about 70%. The length (L2) of the medium (411) may be 10 mm. The first support portion (413) may be composed of a paper material. The second support portion (415) may be composed of a paper material. The first support portion (413) may be composed of an acetate material. The second support portion (415) may be composed of an acetate material. At least one of the first support portion (413) and the second support portion (415) may be made of paper material and may be clumped together in a wrinkled shape to form a plurality of gaps therebetween for air to flow. The gaps may be smaller than the size of each granule 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 (413) may be shorter than the length (L2) of the medium (411). The length (L1) of the first support portion (413) may be 7 mm. The length (L2) of the second support portion (413) may be 7 mm.

Accordingly, each granule of the medium (411) may not be separated from the medium portion (410) and the stick (40).

The cooling unit (420) may have a cylindrical shape. The cooling unit (420) may have a hollow shape. The cooling unit (420) may be disposed between the medium unit (410) and the filter unit (430). The cooling unit (420) may be disposed between the second support unit (415) and the filter unit (430). The cooling unit (420) may be formed in a tubular shape surrounding an internal cooling path (424). The cooling unit (420) may be thicker than the wrapper (440). The cooling unit (420) may be made of a paper material that is thicker than the wrapper (440). The length (L4) of the cooling unit (420) may be the same as or similar to the length (L2) of the medium (411). The length (L4) of the cooling unit (420) and the cooling path (424) may be 10 mm. When the stick (40) is inserted into the interior of the aerosol generator (10), at least a portion of the cooling unit (420) may be exposed to the outside of the aerosol generator (10).

Accordingly, the cooling unit (420) can support the medium unit (410) and the filter unit (430) and secure the rigidity of the stick (40). In addition, the cooling unit (420) can support the wrapper (440) between the medium unit (410) and the filter unit (430) and secure a portion to which the wrapper (440) can be adhered. In addition, the heated air and aerosol can be cooled while passing through the cooling pass (424) inside the cooling unit (420).

The filter unit (430) may be composed of an acetate material filter. The filter unit (430) may be placed at the other end of the stick (40). When the stick (40) is inserted into the aerosol generator (10), the filter unit (430) may be exposed to the outside of the aerosol generator (10). A user may hold the filter unit (430) in his/her mouth and inhale air. The length (L5) of the filter unit (430) may be 14 mm.

The wrapper (440) can wrap or surround the medium portion (410), the cooling portion (420), and the filter portion (430). The wrapper (440) can form the outer shape of the stick (40). The wrapper (440) can be made of paper. The adhesive portion (441) can be formed on one edge of the wrapper (440). The wrapper (440) wraps the medium portion (410), the cooling portion (420), and the filter portion (430), and the adhesive portion (441) formed on one edge and the other edge can be adhered to each other. The wrapper (440) that wraps the medium portion (410), the cooling portion (420), and the filter portion (430) may not cover one end and the other end of the stick (40).

Accordingly, the wrapper (440) can fix the medium section (410), the cooling section (420), and the filter section (430) and prevent them from being detached from the stick (40).

The first thin film (443) may be positioned corresponding to the first support (413). The first thin film (443) may be positioned between the wrapper (440) and the first support (413), or may be positioned on the outside of the wrapper (440). The first thin film (443) may surround the first support (413). The first thin film (443) may be made of a metal material. The first thin film (443) may be made of aluminum material. The first thin film (443) may be in close contact with or coated on the wrapper (440).

The second thin film (445) may be positioned corresponding to the second support (415). The second thin film (445) may be positioned between the wrapper (440) and the second support (415), or may be positioned on the outside of the wrapper (440). The second thin film (445) may be made of a metal material. The second thin film (445) may be made of aluminum material. The second thin film (445) may be in close contact with or coated on the wrapper (440).

FIG. 8 is a drawing showing the structure of an aerosol generating device according to one embodiment of the present disclosure, and FIGS. 9 and 10 are drawings referenced in the description of an aerosol generating device according to one embodiment of the present disclosure.

Referring to FIGS. 8 to 10, the aerosol generator (10) may include a chamber (C1), a heater (131), a battery (16), and a temperature switch (50).

A chamber (C1) for holding an aerosol generating material may be formed within the housing (101) of the aerosol generating device (10). One side of the chamber (C1) may include a passageway communicating with the chamber (C1) and through which the aerosol generating material may flow. The passageway may include a wick (not shown) impregnated with (containing) the aerosol generating material. The aerosol generating material within the chamber (C1) may be impregnated into the wick. For example, the wick may include cotton fibers, ceramic fibers, glass fibers, porous ceramics, etc.

The heater (131) may include a coil (1313) surrounding a wick, 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 positioned adjacent to one end of the chamber (C1). The heater (131) may flow to the wick within the chamber (C1) to heat an aerosol product impregnated in the wick.

The battery (16) is electrically connected to the heater (131) and can supply power to the heater (131). The battery (16) can include a first battery terminal (161) and a second battery terminal (162). The first battery terminal (161) and the second battery terminal (162) are each electrically connected to both ends of the coil (1313) of the heater (131), and a voltage between the first battery terminal (161) and the second battery terminal (162) is applied to both ends of the coil (1313), thereby supplying power from the battery (16) to the heater (131).

The temperature switch (50) can be electrically connected to the heater (131) and the battery (16).

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

The first switch terminal (53) of the temperature switch (50) can be positioned within the housing (101) in a free end form so as to be in contact with and non-contact with the first heater terminal (1311). The second switch terminal (54) of the temperature switch (50) can be electrically connected to the first battery terminal (161) and fixed within the housing (101).

Referring to FIG. 10, the first switch terminal (53) of the temperature switch (50) may be positioned adjacent to the coil (1313) of the heater (131). When power is supplied from the battery (16) to the heater (131) and the heater (131) is heated, the temperature switch (50) may be heated together with the heater. The temperature switch (50) may be heated to the temperature of the coil (1313) or a temperature adjacent thereto. The temperature switch (50) may bend in one direction as the temperature switch (50) is heated and the temperature increases. For example, when the temperature switch (50) is heated to a first temperature or higher, the temperature switch (50) may bend in one direction. Here, the first temperature may be determined depending on the metal component constituting the temperature switch (50).

As the temperature switch (50) is bent in one direction, the first switch terminal (53) can be separated from the first heater terminal (1313). The first switch terminal (53) can be electrically separated (opened) from 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) formed of a first metal and a second plate (52) formed of a second metal. One surface of the first plate (51) and one surface of the second plate (52) may be in contact with each other.

The first plate (51) and the second plate (52) in contact with the first plate (51) may be connected to the first switch terminal (53) and the second switch terminal (54). For example, the first switch terminal (53) and the second switch terminal (54) may be electrically connected to the first and second ends of the first plate (51) and the second plate (52), and may be formed of any one of the first metal and the second metal constituting the first plate (51) and the second plate (52). Meanwhile, the first switch terminal (53) and the second switch terminal (54) may be a part of the first plate (51) and/or the second plate (52). In this case, one end of the first plate (51) or one end of the second plate (52) may become the first switch terminal (53), and the other end of the first plate (51) or the other end of the second plate (52) may become 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 be greater than that of the second metal. For example, the coefficient of thermal expansion of the first metal may be less than that 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 an alloy of nickel (Ni), iron (Fe), and manganese (Mn), or an alloy of nickel (Ni), 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.

The temperature switch (50) may bend in one direction when the temperature of the temperature switch (50) rises, since the first plate (51) and the second plate (52) expand to different degrees. For example, when the thermal expansion coefficient of the first metal is greater than the thermal expansion coefficient of the second metal, the temperature switch (50) may bend in the direction in which the second plate (52) is positioned as the temperature rises. For example, when the thermal expansion coefficient of the first metal is smaller than the thermal expansion coefficient of the second metal, the temperature switch (50) may bend in the direction in which the first plate (51) is positioned as the temperature rises.

The first temperature may be a temperature higher than the vaporization temperature of the aerosol generating material. When the first switch terminal (53) of the temperature switch (50) is in contact with the first heater terminal (1311), the heater (131) may be heated by receiving power from the battery (16). The heater (131) may be heated to a temperature higher than the vaporization temperature of the aerosol generating material. When the heater (131) is heated to a temperature higher than the vaporization temperature of the aerosol generating material, the aerosol generating material within the wick may be vaporized by the heat of the heater (131).

The first temperature may be equal to or lower than the set temperature. Here, the set temperature may be the temperature of the heater (131) when all aerosol generating substances impregnated in the wick have been vaporized and depleted. The set temperature may be a temperature higher than the vaporization temperature of the aerosol generating substance. When all aerosol generating substances contained in the wick are vaporized in a state where no additional aerosol generating substances are supplied to the wick, the temperature of the heater (131) may rapidly increase. Therefore, the set temperature may be set to the temperature at which the temperature of the heater (131) begins to increase after all aerosol generating substances contained in the wick have been vaporized. For example, the set temperature may be a temperature 5 degrees or 10 degrees higher than the vaporization temperature of the aerosol generating substance. However, the set temperature is not limited thereto and may be set based on experimental data, etc.

By switching the electrical connection between the heater (131) and the battery (16) based on the first temperature by the temperature switch (50), the heater (131) can be heated to a temperature equal to or higher than the vaporization temperature of the aerosol generating substance, thereby vaporizing the aerosol generating substance.

In addition, as the aerosol generating material is depleted, when the heater (131) is heated to a temperature (first temperature) that is a certain level higher than the vaporization temperature of the aerosol generating material, overheating of the heater can be prevented by cutting off the electrical connection between the heater (131) and the battery (161).

FIGS. 11 and 12 are drawings that are referenced in the description of an aerosol generating device according to one embodiment of the present disclosure. Detailed descriptions of content that overlaps with the content described in FIGS. 9 and 10 are omitted.

Referring to FIGS. 11 and 12, a fuse (60) may be electrically connected between a second heater terminal (1312) of a heater (131) and a second battery terminal (162) of a battery (16). Both ends of the fuse (60) may be connected to the second heater terminal (1312) and the second battery terminal (162), respectively.

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) via a wire. For example, the third heater terminal (1314) may be connected to the second heater terminal (1312) via a pattern of a PCB circuit.

The third heater terminal (1314) may be located 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) can come into contact with the first heater terminal (1311).

Referring to Fig. 12, the thermal expansion coefficient of the first metal constituting the first plate (51) of the temperature switch (50) may be greater than the thermal expansion coefficient of the second metal constituting the second plate (52). In this case, when the temperature switch (50) is heated to a temperature higher than the first temperature, the temperature switch (50) may bend in one direction, so that the first switch terminal (53) may come into contact with the third heater terminal (1314) and be electrically connected to the third heater terminal (1314).

The fuse (60) can be electrically opened when the current flowing through the fuse (60) exceeds a certain value. The critical current at which the fuse (60) electrically opens can be referred to as a blocking current. For example, the fuse (60) can be blown when a current having a magnitude greater than the magnitude of the blocking current flows. When the fuse (60) is blown, the two terminals of the fuse (60) can be electrically permanently separated (open).

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

At a temperature higher than the first temperature, when the first switch terminal (53) of the temperature switch (50) is electrically connected to the third heater terminal (1314), a second closed loop can be formed in which the battery (16), the temperature switch (50), and the fuse (60) are connected in series.

In the first closed loop, a current smaller than the blocking current may flow through the fuse (60). In the second closed loop, a current equal to or larger than the blocking current may flow through the fuse (60). Since the second closed loop does not have resistance due to the heater (131) compared to the first closed loop, the current flowing through the second closed loop may be larger than the current flowing through the first closed loop.

When the first switch terminal (53) is electrically connected to the third heater terminal (1314), a current greater than the blocking current may flow through the fuse (60). Accordingly, the fuse (60) is electrically opened, the heater (131) is electrically separated from the battery (16), and the power supplied from the battery (16) to the heater (131) may be cut off.

If the fuse (60) is electrically opened, the heater (131) and the battery (16) are not electrically connected unless the fuse (60) is replaced. Accordingly, even if the temperature of the temperature switch (50) decreases below the first temperature, the heater (131) remains electrically separated from the battery (16), and the power supplied from the battery (16) to the heater (131) may be cut off.

Meanwhile, a fuse (60) and a protective 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 protective resistor (70) may be connected in series between the second heater terminal (1312) and the second battery terminal (162).

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

At a temperature higher than the first temperature, when the first switch terminal (53) of the temperature switch (50) is electrically connected to the third heater terminal (1314), a fourth closed loop can be formed in which the battery (16), the temperature switch (50), the fuse (60), and the protective resistor (70) are connected in series.

In the third closed loop, a current smaller than the blocking current can flow through the fuse (60). In the fourth closed loop, a current equal to or larger than the blocking current can flow through the fuse (60).

In the second closed loop described above, if only the temperature switch (50) and the fuse (60) are connected to the battery (16), the current flowing through the second closed loop may be excessively large. In this case, the fuse (60) must have a large breaking current, and there is a possibility that the battery (16) may be damaged. Therefore, in the fourth closed loop, a protective resistor (70) is further connected in series with the fuse (60), so that the current flowing through the fourth closed loop can be set within an appropriate range by the size of the protective resistor (70).

FIGS. 13 and 14 are drawings for reference in the description of an aerosol generating device according to one embodiment of the present disclosure. Detailed descriptions of any content overlapping with that described in FIGS. 9 and 10 are omitted.

Referring to FIGS. 13 and 14, a first adhesive portion (55) may be provided on one side of the temperature switch (50). For example, a first plate (51) of the temperature switch (50) may be positioned adjacent to one side of the housing (101), and a first adhesive portion (55) may be provided on a surface of the first plate (51) adjacent to one side of the housing (101). An adhesive may be applied to the first adhesive portion (55), or an adhesive may be included.

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

The second adhesive portion (111) may be coated with an adhesive or may contain an adhesive. The portion of the second adhesive portion (111) where the adhesive is coated or contains an adhesive may be positioned opposite the portion of the first adhesive portion (55) where the adhesive is coated or contains an adhesive.

The thermal expansion coefficient of the first metal of the first plate (51) of the temperature switch (50) may be smaller than the thermal expansion coefficient of the second metal of the second plate (52). In this case, when the temperature switch (50) is heated to a temperature higher than the first temperature, the temperature switch (50) may bend in the direction in which the second adhesive portion (111) is located, so that the first adhesive portion (55) and the second adhesive portion (111) may come into contact.

When the temperature switch (50) is heated to a first temperature or higher, the first adhesive portion (55) and the second adhesive portion (111) come into contact, so that the temperature switch (50) can be fixed in a state of contacting one side of the housing (101). Accordingly, even if the temperature of the temperature switch (50) decreases below the first temperature, the heater (131) is maintained in an electrically separated (open) state from 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, power supplied to the heater can be cut off based on the remaining amount of aerosol generating material.

According to at least one embodiment of the present disclosure, overheating of the heater can be prevented when the remaining amount of aerosol generating material is insufficient.

Referring to FIGS. 1 to 14, an aerosol generating device (10) according to one aspect of the present disclosure comprises: a housing (101); a heater (131) for heating an aerosol product; a battery (16) for supplying power to the heater (131); And a temperature switch (50) for switching the electrical connection between the heater (131) and the battery (16); wherein the temperature switch (50) includes a first switch terminal (53) that is in contact with a first heater terminal (1311) of the heater (131) and electrically connected to the first heater terminal (1311) and a second switch terminal (54) that is electrically connected to a first battery terminal (161) of the battery (16), and when heated to a first temperature or higher, it bends in one direction, and the first switch terminal (53) can be separated from the first heater terminal (1311) and electrically separated from the first heater terminal (1311) as the temperature switch (50) bends in one direction.

Additionally, according to another aspect of the present disclosure, the first temperature may be higher than the vaporization temperature of the aerosol generating material.

In addition, according to another aspect of the present disclosure, the temperature switch (50) includes a first plate (51) formed of a first metal and extending in a long direction from the first battery terminal (161) toward the first heater terminal (1311); a second plate (52) formed of a second metal and having one surface in contact with one surface of the first plate (51); and a thermal expansion coefficient of the first metal may be different from a thermal expansion coefficient of the second metal.

In addition, according to another aspect of the present disclosure, the heater (131) further includes a fuse (60); and includes a coil (1313) having one end connected to the first heater terminal (1311); and a second heater terminal (1312) connected to the other end of the coil (1313); and the battery (16) includes the second battery terminal (162); and the fuse (60) can have both ends connected to the second heater terminal (1312) and the second battery terminal (162).

In addition, 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 positioned adjacent to the first switch terminal (53).

In addition, according to another aspect of the present disclosure, the thermal expansion coefficient of the first metal is greater than the thermal expansion coefficient of the second metal, and when the temperature switch (50) is heated to the first temperature or higher, the temperature switch (50) is bent in one direction, so that the first switch terminal (53) can come into contact with the third heater terminal (1314) and be electrically connected to the third heater terminal (1314).

In addition, according to another aspect of the present disclosure, the fuse (60) is electrically opened when a current greater than the blocking current flows, and when the first switch terminal (53) is electrically connected to the third heater terminal (1314), a current greater than the blocking current can flow through the fuse (60).

In addition, according to another aspect of the present disclosure, a protection resistor (70) is further included, and the fuse (60) and the protection resistor (70) can be connected in series between the second heater terminal (1312) and the second battery terminal (162).

In addition, according to another aspect of the present disclosure, the thermal expansion coefficient of the first metal may be smaller than the thermal expansion coefficient of the second metal, and a first adhesive portion (55) may be provided on at least a portion of the other surface of the first plate (51).

In addition, according to another aspect of the present disclosure, the housing (101) is provided with a second adhesive portion (111) on one surface positioned adjacent to the other surface of the first plate (51), and when the temperature switch (50) is heated to a first temperature or higher, the temperature switch (50) is bent in the direction in which the second adhesive portion (111) is positioned, so that the first adhesive portion (55) and the second adhesive portion (111) can come into contact.

Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

For example, it means that a configuration A described in a particular embodiment and/or drawing can be combined with a configuration B described in another embodiment and/or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims (10)

housing;
A heater for heating an aerosol product;
A battery that supplies power to the above heater; and
a temperature switch for switching the electrical connection between the heater and the battery;
The above temperature switch,
A first switch terminal that contacts the first heater terminal of the heater and is electrically connected to the first heater terminal; and
A second switch terminal electrically connected to the first battery terminal of the battery;
When heated above the first temperature, it bends in one direction,
The above first switch terminal,
As the temperature switch is bent in one direction, it is separated from the first heater terminal and electrically separated (opened) from the first heater terminal, thereby disconnecting the electrical connection between the heater and the battery.
An aerosol generating device in which the electrical connection between the heater and the battery is maintained disconnected even when the temperature of the temperature switch decreases below the first temperature.
In the first paragraph,
The above first temperature is,
An aerosol generating device having a vaporization temperature higher than that of the aerosol generating material.
In the first paragraph,
The above temperature switch,
A first plate formed of a first metal and extending in a long direction from the first battery terminal toward the first heater terminal;
A second plate formed of a second metal, one side of which is in contact with one side of the first plate;
An aerosol generating device wherein the coefficient of thermal expansion of the first metal is different from the coefficient of thermal expansion of the second metal.
In the third paragraph,
Including fuses;
The above heater,
A coil having one end connected to the first heater terminal; and
a second heater terminal connected to the other end of the coil;
The above battery,
including a second battery terminal;
The above fuse is,
An aerosol generating device in which both ends connect the second heater terminal and the second battery terminal.
In paragraph 4,
The above heater,
An aerosol generating device further comprising a third heater terminal electrically connected to the second heater terminal and positioned adjacent to the first switch terminal.
In paragraph 5,
The coefficient of thermal expansion of the first metal is greater than the coefficient of thermal expansion of the second metal,
An aerosol generating device in which, when the temperature switch is heated to a temperature higher than the first temperature, the temperature switch is bent in one direction, so that the first switch terminal comes into contact with the third heater terminal and is electrically connected to the third heater terminal.
In paragraph 5,
The above fuse is,
If a current exceeding the breaking current flows, it is electrically opened.
An aerosol generating device in which a current greater than the blocking current flows through the fuse when the first switch terminal is electrically connected to the third heater terminal.
In paragraph 5,
Including protective resistance;
An aerosol generator wherein the fuse and the protective resistor are connected in series between the second heater terminal and the second battery terminal.
In the third paragraph,
The coefficient of thermal expansion of the first metal is smaller than the coefficient of thermal expansion of the second metal,
An aerosol generating device having a first adhesive portion provided on at least a portion of the other surface of the first plate.
In paragraph 9,
The above housing,
A second adhesive portion is provided on one side adjacent to the other side of the first plate,
An aerosol generating device in which the first adhesive portion and the second adhesive portion come into contact as the temperature switch is bent in the direction in which the second adhesive portion is located when the temperature switch is heated to a first temperature or higher.