KR102082948B1 - Heater and system for heating an aerosol generating substrate - Google Patents

Abstract

The heater for heating the aerosol-forming substrate is formed of a tube-shaped base portion and a heating portion including an acupuncture portion formed at one end of the base portion, and electrically conductive tracks are formed on both sides, and the agent wraps at least a portion of the outer peripheral surface of the base portion. A first sheet, a second sheet surrounding at least a portion of the first sheet and having rigidity; And a coating layer for planarizing a stepped surface formed by a lamination structure including the heating part, the first sheet, and the second sheet.

Description

Heater and system for heating an aerosol generating substrate

It relates to a system including a heater and a heater for heating the aerosol-forming substrate is inserted into the aerosol-forming substrate.

Research into various heater structures for heating aerosol-forming substrates is ongoing. In particular, in the case of a heater that is inserted into an aerosol-forming substrate and heats the aerosol-forming substrate, the heater has a smooth surface to facilitate insertion into the aerosol-forming substrate, and the heater should not be damaged due to frictional force during the insertion process.

It provides a heater and a system for heating the aerosol-forming substrate. The technical problems to be achieved by the present embodiment are not limited to the technical problems as described above, and other technical problems may be inferred from the following embodiments.

The heater according to one side includes a base having a tube shape and an acupuncture portion formed at one end of the base, electrically conductive tracks are formed on both sides, and a first sheet and a first sheet surrounding at least a portion of the outer peripheral surface of the base It may include a coating layer for planarizing a stepped surface formed by a laminated structure including a second sheet having at least a portion of it and having rigidity, and a heating part, a first sheet, and a second sheet.

According to another aspect, the heating system for heating the aerosol-forming substrate is inserted into the aerosol-forming substrate to heat the aerosol-forming substrate, and a heating unit including a heater and a tube-shaped base and a tip formed at one end of the base, An electrically conductive track is formed on each side, and a first sheet surrounding at least a portion of the outer circumferential surface of the base portion, a second sheet surrounding at least a portion of the first sheet and having rigidity, and a heating portion, the first sheet and the second sheet It may include a heater including a coating layer for planarizing the stair surface formed by the lamination structure including.

1 is a view for explaining the use of an aerosol generating device and a cigarette according to an embodiment.
2 is a view for explaining the structure of a heater according to an embodiment.
3 is a view for explaining a stair plane according to an embodiment.
4 is a diagram for describing electrically conductive tracks according to an embodiment.
5 is a view for explaining a system for heating aerosol-forming substrate according to an embodiment.
6 is a configuration diagram showing an example of an aerosol-generating device.
7A and 7B are views illustrating an example of a holder in various aspects.
8 is a configuration diagram showing an example of a cradle.
9A and 9B are diagrams illustrating an example of a cradle in various aspects.
10 is a view showing an example in which the holder is inserted into the cradle.
11 is a view showing an example in which the holder is tilted in the inserted state in the cradle.
12A to 12B are views illustrating examples in which the holder is inserted into the cradle.
13 is a flowchart illustrating an example in which the holder and the cradle operate.
14 is a flowchart illustrating an example in which the holder operates.
15 is a flowchart for explaining an example of the operation of the cradle.
16 is a view showing an example in which a cigarette is inserted into the holder.
17A and 17B are diagrams showing an example of a cigarette.
18A to 18F are views showing examples of the cooling structure of the cigarette.

The terminology used in the present embodiments has been selected from the general terms that are currently widely used as possible while considering the functions in the present embodiments, but this may vary depending on the intention or precedent of a person skilled in the art or the appearance of new technology. Also, in certain cases, some terms are arbitrarily selected by the applicant, and in this case, their meanings will be described in detail in the corresponding parts. Therefore, the terms used in the present embodiments should be defined based on the meanings of the terms and the contents of the present embodiments, not simply the names of the terms.

Throughout the specification, when a part is connected to another part, this includes not only the case of being directly connected, but also the case of being electrically connected with another element in between. Also, when a part includes a certain component, this means that other components may be further included rather than excluding other components unless otherwise specified. In addition, the terms of the components described in the present exemplary embodiments mean a unit for processing at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

In this embodiment, "aerosol-generating material" refers to a material capable of generating an aerosol, and may also mean an aerosol-forming substrate. Aerosols can include volatile compounds. The aerosol-generating material can be solid or liquid.

For example, the solid aerosol-generating material may include a solid material based on tobacco raw materials such as platy leaf tobacco, cut filler, reconstituted tobacco, and the liquid aerosol-generating material based on nicotine, tobacco extract, and various flavoring agents. It may contain a liquid substance. Of course, it is not limited to the above example.

In the present exemplary embodiment, the “aerosol-generating device” may be a device that generates an aerosol using an aerosol-generating material in order to generate an aerosol that can be directly inhaled into a user's lung through a user's mouth. For example, the aerosol-generating device may be a holder that can be held by a user.

1 is a view for explaining the use of an aerosol generating device and a cigarette according to an embodiment.

Referring to FIG. 1, the aerosol-generating device 1 (hereinafter referred to as a “holder”) may be manufactured in a cylindrical shape, but is not limited thereto. The user can grasp and use the holder 1 like a conventional cigarette.

Inside the holder 1 is provided a heater 100 that is electrically heated by the power supplied by the battery. The heater 100 is fixed to be located in an empty space (or cavity) 20 formed at one end of the holder 1. The cigarette 3 can be accommodated into the empty space 20 of the holder 1, and when accommodated, the heater 100 can penetrate the inside of the aerosol-generating material 21 provided at one end of the cigarette 3. Meanwhile, the cigarette 3 may also be used in various terms such as tobacco and tobacco. Cigarette (3) is a smoking article having an aerosol-generating material (21) packaged on one end and a filter (22) on the other end, and the aerosol-generating material (21) and the filter (22) are wrapped with a wrapper to abut each other. Lost.

The temperature of the aerosol-generating material 21 in the cigarette 3 is increased by the heated heater 100, thereby generating an aerosol. The generated aerosol can be delivered to the user through the filter 22 of the cigarette 3. Here, the heater 100 may heat the aerosol-generating material 21 to a temperature that does not burn. In other words, by heating the aerosol-generating material 21 to a temperature lower than the ignition point of the aerosol-generating material 21, the aerosol may be generated from the aerosol-generating material 21.

The heater 100 is electrically heated by electric power supplied from a battery. The heater 100 shown in FIG. 1 may be in the form of one needle, one end of which is inserted into the aerosol-generating material 21, and is closed at an acute angle. However, the present invention is not limited thereto, and the heater 100 may be implemented in various forms such as a tubular heater 100, a plurality of rod-shaped heaters 100, and one end of the heater 100 is curved instead of a pointed shape. Other forms may also be implemented. That is, if the heater 100 is capable of performing the above-described functions, its form may be employed without limitation.

2 is a view for explaining the structure of a heater 100 according to an embodiment.

According to an embodiment, the heater 100 includes a heating unit 215, a first sheet 225 surrounding a portion of the heating unit 215, a second sheet 235 protecting the first sheet 225, and a coating layer (245).

According to one embodiment, the heating unit 215 may have a rod-shaped structure. In addition, the heating unit 215 may include a base portion and a tip portion. For example, the base of the heating unit 215 may be formed in a cylindrical shape, but is not limited thereto. In addition, the acupuncture portion of the heating portion 215 may be formed at one end of the base portion to facilitate insertion into the aerosol-forming substrate. At this time, the base portion and the needle portion may be integrally formed. Alternatively, the base portion and the acupuncture portion may be manufactured separately and then joined.

The heating unit 215 may include a thermally conductive material. For example, the thermally conductive material may include ceramic, anodized metal, coated metal, polyimide (PI), etc., including alumina or zirconia, etc. It is not limited to this.

According to an embodiment, the first sheet 225 may wrap at least a portion of the heating unit 215. For example, the first sheet 225 may wrap at least a portion of the outer circumferential surface of the base portion of the heater 100. Electrically conductive tracks may be formed on each of both cross sections of the first sheet 225.

In addition, the first electrically conductive track formed on one surface of both ends of the first sheet 225 may receive power from the battery. As current flows through the first electrically conductive track, the temperature of the electrically conductive track may rise. In addition, as the temperature of the electrically conductive track increases, heat is transferred to the heating unit 215 adjacent to the electrically conductive track, so that the heating unit 215 may be heated.

Depending on the power consumption of the resistance of the first electrically conductive track, the heating temperature of the first electrically conductive track can be determined. Also, based on the power consumption of the resistance of the first electrically conductive track, the resistance value of the first electrically conductive track can be set.

For example, the resistance value of the first electrically conductive track may have a value between 0.5 ohm and 1.2 ohm at 25 degrees Celsius, but is not limited thereto. At this time, the resistance value of the first electrically conductive track may be set by the constituent material, length, width, thickness and pattern of the first electrically conductive track.

The first electrically conductive track may increase the size of the internal resistance as the temperature increases, depending on the resistance temperature coefficient characteristic. For example, the temperature of the first electrically conductive track and the magnitude of the resistance in a predetermined temperature period may be proportional.

For example, a predetermined voltage is applied to the first electrically conductive track, and the current flowing through the first electrically conductive track can be measured through the current sensor. In addition, the resistance of the first electrically conductive track can be calculated through the ratio of the measured current and the applied voltage. Based on the calculated resistance, according to the resistance temperature coefficient characteristic of the first electrically conductive track, the temperature of the first electrically conductive track or the heating unit 215 may be estimated.

For example, the first electrically conductive track can include tungsten, gold, platinum, silver copper, nickel palladium, or combinations thereof. Further, the first electrically conductive track can be doped with a suitable doping material and can include an alloy.

One or both surfaces of the first sheet 225 may include a second electrically conductive track having a resistance temperature coefficient characteristic used to sense the temperature of the heating unit 215. The second electrically conductive track may increase the size of the internal resistance as the temperature increases, depending on the resistance temperature coefficient characteristic. For example, the temperature of the second electrically conductive track and the magnitude of the resistance in a predetermined temperature period may be proportional.

The second electrically conductive track may be disposed adjacent to the heating unit 215. Accordingly, when the temperature of the heating unit 215 increases, the temperature of the adjacent second electrically conductive track may also increase. A predetermined voltage is applied to the second electrically conductive track, and the current flowing through the second electrically conductive track can be measured through the current sensor. In addition, the resistance of the second electrically conductive track can be determined through the ratio of the measured current and the applied voltage. Based on the determined resistance, the temperature of the heating unit 215 may be determined according to the resistance temperature coefficient characteristic of the second electrically conductive track.

The resistance value of the second electrically conductive track may be changed according to the temperature of the second electrically conductive track. Accordingly, the temperature change of the second electrically conductive track can be measured based on the change in the resistance value of the second electrically conductive track. For example, the resistance value of the second electrically conductive track may have a resistance value between 7 ohm and 18 ohm at 25 degrees Celsius, but is not limited thereto. At this time, the resistance value of the second electrically conductive track may be set by the constituent material, length, width, thickness and pattern of the second electrically conductive track.

For example, the second electrically conductive track can include tungsten, gold, platinum, silver copper, nickel palladium, or combinations thereof. In addition, the second electrically conductive track can be doped with a suitable doping material or include an alloy.

The first electrically conductive track can be connected to the battery through an electrical connection. As described above, as power is supplied from the battery, the temperature of the first electrically conductive track may increase.

The second electrically conductive track may include an electrical connection to which a direct current (DC) voltage is applied. The electrical connection of the second electrically conductive track is separate from the electrical connection of the first electrically conductive track. Also, when the DC voltage applied to the second electrically conductive track is constant, the magnitude of the current flowing through the second electrically conductive track may be determined based on the resistance of the second electrically conductive track.

The second electrically conductive track may be connected to an OP Amp (Operating Amplifier). The OP Amp is a power supply that receives DC power from the outside, an input that is electrically connected to the second electrically conductive track and receives DC voltage and / or current, and a signal based on the DC voltage and / or current applied to the input. It may include an output unit for output.

The OP Amp can receive a DC voltage through the power supply. Also, the DC voltage may be applied to the OP Amp through the input unit. At this time, the magnitude of the DC voltage applied through the input of the OP Amp and the magnitude of the DC voltage applied through the power supply of the OP Amp may be the same. Further, the DC voltage applied to the input of the OP Amp may be the same as the DC voltage applied to the electrical connection of the second electrically conductive track.

The electrical connection of the second electrically conductive track and the input of the OP Amp can be separated from the electrical connection of the first electrically conductive track.

As the temperature of the second electrically conductive track changes, the resistance value of the second electrically conductive track may change. Therefore, the second electrically conductive track functions as a variable resistor having temperature as a control variable, and as the resistance value of the second electrically conductive track changes, it flows into the input of the OP Amp electrically connected to the second electrically conductive track. The current changes. As the resistance value of the second electrically conductive track increases, the current flowing into the input of the OP Amp electrically connected to the second electrically conductive track decreases. At this time, even if the resistance value of the second electrically conductive track changes, the DC voltage applied to the input of the OP Amp may be constant.

As the current flowing into the input of the OP Amp changes, the voltage and / or current of the signal output from the output of the OP Amp may change. For example, as the input current of the OP Amp increases, the output voltage of the OP Amp may increase. As another example, as the input current of the OP Amp increases, the output voltage of the OP Amp may decrease.

In addition, when a constant DC voltage is applied to the input of the OP Amp, the relationship between the temperature and the resistance value of the second electrically conductive track, the relationship between the resistance value of the second electrically conductive track and the input current applied to the OP Amp, and the OP Amp The relationship between the input current and the output voltage of can be obtained or set experimentally. Thus, by measuring the change in the output voltage and / or output voltage of the OP Amp, it is possible to sense the temperature and / or change in temperature of the second electrically conductive track.

For example, the OP Amp may have a characteristic that the voltage of the output portion of the OP Amp increases as the input current flowing into the input portion increases. In this case, the temperature of the heater increases as power is supplied to the first electrically conductive track. Accordingly, the temperature of the second electrically conductive track increases. At this time, due to the increase in resistance of the second electrically conductive track, the magnitude of the input current applied to the input portion of the OP Amp can be reduced. Therefore, the voltage of the output portion of the OP Amp decreases. Conversely, the power supply to the first electrically conductive track is cut off or the power supplied to the first electrically conductive track decreases, so that as the temperature of the heater decreases, the voltage of the output portion of the OP Amp increases.

As another example, the OP Amp may have a characteristic that the voltage of the output portion decreases as the input current flowing into the input portion increases. In this case, the temperature of the heater increases as power is supplied to the first electrically conductive track. Accordingly, the temperature of the second electrically conductive track increases. At this time, due to the increase in resistance of the second electrically conductive track, the magnitude of the input current applied to the input portion of the OP Amp can be reduced. Therefore, the voltage of the output portion of the OP Amp increases. Conversely, the power supply to the first electrically conductive track is cut off or the power supplied to the first electrically conductive track decreases, and as the temperature of the heater decreases, the voltage of the output portion of the OP Amp decreases.

The output of the OP Amp can be connected to the processor. For example, the processor may be a microcontroller unit (MCU). The processor may sense the temperature of the second electrically conductive track or heating part based on the output voltage of the OP Amp. In addition, the processor can adjust the supply voltage supplied to the first electrically conductive track based on the temperature of the heating unit.

According to an embodiment, the first electrically conductive track and the second electrically conductive track may be formed on both cross sections of the first sheet 225. For example, the first electrically conductive track may be included on one surface of the first sheet 225 that contacts the heating unit 215, and the second electrically conductive track may be included on the other surface. As another example, the second electrically conductive track may be included on one surface of the first sheet 225 that contacts the heating unit 215, and the first electrically conductive track may be included on the other surface.

According to another embodiment, the first electrically conductive track and the second electrically conductive track may be included on the same surface of both cross sections of the first sheet 225. For example, the first electrically conductive track and the second electrically conductive track may be included on one surface of the first sheet 225 that contacts the heating unit 215. As another example, the first electrically conductive track and the second electrically conductive track may be included on both surfaces of the first sheet 225 that do not contact the heating unit 215.

For example, the first sheet 225 may be a green sheet made of a ceramic composite material. At this time, the ceramic may include compounds such as alumina and zircona, but is not limited thereto.

According to an embodiment, the second sheet 235 may wrap at least a portion of the first sheet 225. In addition, the second sheet 235 may have rigidity.

Thus, the second seat 235 protects the first seat 225 and the electrically conductive tracks when the heater 100 is inserted into the aerosol-forming substrate.

For example, the second sheet 235 may be a green sheet composed of a ceramic composite material. At this time, the ceramic may include compounds such as alumina and zircona, but is not limited thereto.

The second sheet 235 may be coated with a glaze so that the heater 100 is easily inserted into the cigarette 3 and improves the durability of the heater 100. As the second sheet 235 is coated with glaze, the stiffness of the second sheet 235 may increase.

Each of the heating unit 215, the first sheet 225, and the second sheet 235 may be selectively manufactured from the same material group, for example, ceramics, such as alumina or zircona.

Further, each of the first electrically conductive track and the second electrically conductive track can be selectively fabricated from the same material group, for example, tungsten, gold, platinum, silver copper, nickel palladium, or a combination thereof. At this time, even if the constituent materials of the first electrically conductive track and the constituent materials of the second electrically conductive track are the same, the resistance values of the first electrically conductive track and the second electrically conductive track are determined by the length, width, or pattern of the track. Due to the differences, they may be different.

According to an embodiment, the first electrically conductive track for heating the heating unit 215 may be included in the heating unit 215, the first sheet 225 or the second sheet 235. Alternatively, a plurality of electrically conductive tracks for heating the heating unit 215, such as the first electrically conductive track, may be included in at least one of the heating unit 215, the first sheet 225, and the second sheet 235. have.

According to an embodiment, the second electrically conductive track for sensing the temperature of the heating unit 215 may be included in the heating unit 215, the first sheet 225 or the second sheet 235. Alternatively, a plurality of electrically conductive tracks for sensing the temperature of the heating unit 215, such as the second electrically conductive track, may be included in at least one of the heating unit 215, the first sheet 225, and the second sheet 235. You can.

According to an embodiment, the first electrically conductive track for heating the heating unit 215 and the second electrically conductive track for sensing the temperature of the heating unit 215 include a heating unit 215 and a first sheet 225 And it may be included in the same portion of the second sheet 235, respectively. Alternatively, the first electrically conductive track for heating the heating unit 215 and the second electrically conductive track for sensing the temperature of the heating unit 215 include a heating unit 215, a first sheet 225 and a second sheet Each of 235 may be included in different parts.

According to one embodiment, as the coating layer 245 is provided on the heater 100, the stair surface formed by the lamination structure including the heating unit 215, the first sheet 225 and the second sheet 235 (stepped surface) can be flattened. For example, the edge of the first sheet 225 and the edge of the second sheet 235 do not coincide, or due to the thickness of the first sheet 225 and the second sheet 235, the step plane 255 is formed Can be. For example, due to the step plane 255, friction may increase when the heater 100 is inserted into the aerosol-forming substrate. In addition, the heater 100 is contaminated by deposits or residues generated from the aerosol-forming substrate on the step plane 255, thereby reducing the performance of the heater 100, such as reducing the thermal conductivity of the heater 100. You can. Therefore, in order to flatten the step plane 255, a coating layer 245 may be formed on the outer surface of the heater 100.

The outer surface of the heater 100 formed of the coating layer 245 is the immersion portion of the coating layer 245 corresponding to the immersion portion of the heating portion 215, and the base portion of the heating portion 215, the first sheet 225 and the first 2 may include a base portion of the coating layer 245 corresponding to the sheet 235. At this time, the portion from the acupuncture portion of the coating layer 245 to the base portion of the coating layer 245 may have a smooth outer surface without a step plane 255 or irregularities.

The coating layer 245 may include a heat resistant composition. For example, the coating layer 245 may include, but is not limited to, a glass film coating layer, a Teflon coating layer, and a single coating layer of the Dermolon coating layer. In addition, the coating layer 245 may include, but is not limited to, a composite coating layer composed of two or more of a glass film coating layer, a Teflon coating layer, and a Dermolon coating layer.

3 is a view for explaining the stair plane of FIG. 2 (255 of FIG. 2) according to an embodiment.

In FIG. 3, stair planes (255 of FIG. 2) of the first sheet 225 and the second sheet 235 surrounding the base and the base of the heater may be formed.

For example, a terrace 221 may be formed by the thickness of the first sheet 225. In addition, the terrace 231 may be formed by the thickness of the second sheet 235.

In addition, a step 211 may be formed because the boundary between the tip portion and the base portion of the heating zone and the edge of the first sheet 225 do not coincide. In addition, since the edges of the first sheet 225 and the edges of the second sheet 235 do not coincide, step 222 may be formed.

At this time, the heater 100 may be contaminated by depositing or depositing aerosol-forming substrate in a space formed by the step plane (255 in FIG. 2). As described above in FIG. 1, the coating layer (245 in FIG. 2) may fill the gap formed by the stair plane (255 in FIG. 2) to flatten the stair plane (255 in FIG. 2).

4 is a diagram for describing electrically conductive tracks 320 and 340 according to an embodiment.

The first surface 310 of the first sheet 225 may include a first electrically conductive track 320, and the second surface 330 may include a second electrically conductive track 340.

The first electrically conductive track 320 may heat the heating unit 215 of the heater 100 as current flows therein. The electrically conductive track can be connected to an external power source through a connection. Further, as power is supplied to the electrically conductive track from an external power source, current may flow inside the electrically conductive track. Accordingly, the electrically conductive track is heated, so that the heat is transferred to the adjacent heating unit (215 in FIG. 2) to heat the heating unit (215 in FIG. 2).

For example, the first electrically conductive track 320 of the first surface 310 may be formed in various patterns such as a curved shape or a mesh shape.

The second surface 330 of the first sheet 225 may include a second electrically conductive track 340 having a resistance temperature coefficient characteristic used to sense the temperature of the heating unit (215 in FIG. 2). As described above, according to the resistance temperature coefficient characteristic of the second electrically conductive track 340, as the temperature increases, the size of the internal resistance may increase. For example, the temperature of the second electrically conductive track 340 and the magnitude of the resistance in a constant temperature section may be proportional.

The second electrically conductive track 340 may be disposed adjacent to the heating unit (215 in FIG. 2). For example, as the heating part 215 is heated, heat may be transferred from the heating part 215 to the second electrically conductive track 340. When the temperature of the heating unit 215 increases, the temperature of the second electrically conductive track 340 also increases, and the resistance of the second electrically conductive track 340 may increase. Conversely, when the temperature of the heating unit 215 decreases, as the temperature of the second electrically conductive track 340 also decreases, the resistance of the second electrically conductive track 340 may decrease.

The second electrically conductive track 340 may be connected to a control unit (not shown) through a connection. For example, the second electrically conductive track 340 is a processor that controls the temperature of the heating unit (215 of FIG. 2), for example, the second electrically conductive track 340 may be connected to a control unit (not shown). . Using the relationship between the resistance and temperature of the second electrically conductive track 340, the resistance of the second electrically conductive track 340 is determined from the voltage and current of the second electrically conductive track 340, and the heating unit is determined from the determined resistance. The temperature of 215 can be determined. Based on the temperature determined using the second electrically conductive track 340, power supplied to the first electrically conductive track 320 may be adjusted.

The second electrically conductive track 340 may be disposed adjacent to the heating unit 215 to receive temperature from the heating unit (215 in FIG. 2). In addition, the first electrically conductive track 340 of the second surface 330 may be formed in various patterns such as a curved shape or a mesh shape.

The first surface 310 including the first electrically conductive track 320 is one surface in contact with the heating unit (215 in FIG. 2) of both sections of the first sheet 225, and the second electrically conductive track 340 The second surface 330 including a may be another surface that does not contact the heating unit (215 of FIG. 2). Conversely, the second surface 330 including the second electrically conductive track 340 is one surface in contact with the heating unit (215 of FIG. 2), and the first surface 310 including the first electrically conductive track 320 ) May be the other surface that does not contact the heating unit (215 in FIG. 2).

FIG. 4 is a view for explaining an embodiment in which the first electrically conductive track 320 and the second electrically conductive track 340 are disposed on both cross sections of the first sheet 225, as described above. The electrically conductive track 320 and the second electrically conductive track 340 may be formed on the same side of the first sheet 225.

5 is a view for explaining a system 500 for heating an aerosol-forming substrate according to an embodiment.

Referring to FIG. 5, the system 500 may include a heater 100, a battery 510 and a control unit 520. Since the heater 100 corresponds to the heater 100 of FIG. 2, the description of the heater 100 will be replaced with the above-described description in FIG. 2.

The battery 510 may be connected to the heater 100 through the first connector 530. For example, the battery 510 may be electrically connected to the first electrically conductive track of the first sheet of the heater 100 to supply power to the first electrically conductive track.

The battery 510 may include a power source and a circuit unit for supplying power. For example, the battery 510 may provide a supply voltage to the first electrically conductive track through the first connector 530. The supply voltage may be a direct current or alternating current voltage, a pulse voltage having a constant period, or a pulse voltage in which the period fluctuates, but is not limited thereto.

The control unit 520 may include a processor. For example, the processor may be an MCU, but is not limited thereto.

The control unit 520 may be connected to the heater 100 through the second connector 540. For example, the control unit 520 may be electrically connected to the second electrically conductive track of the first sheet of the heater 100 to determine the temperature of the heater 100. Also, the control unit 520 may adjust the temperature of the heater 100 based on the determined temperature of the heater 100. For example, the controller 520 may determine whether to adjust the temperature of the heater 100 based on the determined temperature of the heater 100. The controller 520 may adjust power supplied from the battery 510 to the heater 100 based on the determination that the temperature of the heater 100 is adjusted. For example, the control unit 520 may adjust the magnitude or period of the pulse voltage supplied from the battery 510 to the heater 100.

The control unit 510 according to an embodiment may include an OP Amp.

The second electrically conductive track can be connected to the OP Amp through the second connector 540. OP Amp is an electrical signal based on a DC power supplied from an external power supply, an input electrically connected to a second electrically conductive track and receiving DC voltage and / or current, and DC voltage and / or current applied to the input. It may include an output unit for outputting.

The OP Amp can receive a DC voltage through the power supply. Also, the DC voltage may be applied to the OP Amp through the input unit. At this time, the magnitude of the DC voltage applied through the input of the OP Amp and the magnitude of the DC voltage applied through the power supply of the OP Amp may be the same. Also, the DC voltage applied to the input of the OP Amp may be the same as the DC voltage applied to the second connector 540 of the second electrically conductive track.

The second connector 540 of the second electrically conductive track and the input of the OP Amp may be separated from the first connector 530 of the first electrically conductive track.

As the temperature of the second electrically conductive track changes, the resistance value of the second electrically conductive track may change. Therefore, the second electrically conductive track functions as a variable resistor having temperature as a control variable, and as the resistance value of the second electrically conductive track changes, it flows into the input of the OP Amp electrically connected to the second electrically conductive track. The current changes. As the resistance value of the second electrically conductive track increases, the current flowing into the input of the OP Amp electrically connected to the second electrically conductive track decreases. At this time, even if the resistance value of the second electrically conductive track changes, the DC voltage applied to the input of the OP Amp may be constant.

As the current flowing into the input of the OP Amp changes, the voltage and / or current of the signal output from the output of the OP Amp may change. For example, as the input current of the OP Amp increases, the output voltage of the OP Amp may increase. As another example, as the input current of the OP Amp increases, the output voltage of the OP Amp may decrease.

In addition, when a constant DC voltage is applied to the input of the OP Amp, the relationship between the temperature and the resistance value of the second electrically conductive track, the relationship between the resistance value of the second electrically conductive track and the input current applied to the OP Amp, and the OP Amp The relationship between the input current and the output voltage of can be obtained or set experimentally. Thus, by measuring the change in the output voltage and / or output voltage of the OP Amp, it is possible to sense the temperature and / or change in temperature of the second electrically conductive track.

For example, the OP Amp may have a characteristic that the voltage of the output portion of the OP Amp increases as the input current flowing into the input portion increases. In this case, the temperature of the heater increases as power is supplied to the first electrically conductive track. Accordingly, the temperature of the second electrically conductive track increases. At this time, due to the increase in resistance of the second electrically conductive track, the magnitude of the input current applied to the input portion of the OP Amp can be reduced. Therefore, the voltage of the output portion of the OP Amp decreases. Conversely, the power supply to the first electrically conductive track is cut off or the power supplied to the first electrically conductive track decreases, so that as the temperature of the heater decreases, the voltage of the output portion of the OP Amp increases.

As another example, the OP Amp may have a characteristic that the voltage of the output portion decreases as the input current flowing into the input portion increases. In this case, the temperature of the heater increases as power is supplied to the first electrically conductive track. Accordingly, the temperature of the second electrically conductive track increases. At this time, due to the increase in resistance of the second electrically conductive track, the magnitude of the input current applied to the input portion of the OP Amp can be reduced. Therefore, the voltage of the output portion of the OP Amp increases. Conversely, the power supply to the first electrically conductive track is cut off or the power supplied to the first electrically conductive track decreases, and as the temperature of the heater decreases, the voltage of the output portion of the OP Amp decreases.

The output of the OP Amp can be connected to the processor. The processor may be, for example, an MCU. The processor may sense the temperature of the second electrically conductive track or heating part based on the output voltage of the OP Amp. In addition, the processor can adjust the supply voltage supplied to the first electrically conductive track based on the temperature of the heating unit.

6 is a configuration diagram showing an example of an aerosol-generating device.

Referring to FIG. 6, the holder 1 includes a battery 110, a control unit 120, and a heater 2130. In addition, the holder 1 includes an inner space formed by the case 2140. A cigarette may be inserted into the inner space of the holder 1.

In the holder 1 shown in FIG. 6, only the components related to this embodiment are shown. Therefore, it can be understood by those of ordinary skill in the art related to this embodiment that other general-purpose components in addition to those shown in FIG. 6 may be further included in the holder 1.

When the cigarette is inserted into the holder 1, the holder 1 heats the heater 2130. The temperature of the aerosol-generating material in the cigarette is increased by the heated heater 2130, thereby generating an aerosol. The resulting aerosol is delivered to the user through a cigarette filter. However, even if the cigarette is not inserted into the holder 1, the holder 1 can heat the heater 2130.

The case 2140 may be separated from the holder 1. For example, when the user turns the case 2140 clockwise or counterclockwise, the case 2140 may be separated from the holder 1.

In addition, the diameter of the hole formed by the end 2141 of the case 2140 may be made smaller than the diameter of the space formed by the case 2140 and the heater 2130, in which case it is inserted into the holder 1 Can serve as a guide for cigarettes.

The battery 110 supplies power used for the holder 1 to operate. For example, the battery 110 may supply power so that the heater 2130 can be heated, and may supply power necessary for the control unit 120 to operate. In addition, the battery 110 may supply power required for the display, sensor, motor, and the like installed in the holder 1 to operate.

The battery 110 may be a lithium iron phosphate (LiFePO4) battery, but is not limited to the above-described example. For example, the battery 110 may be a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, or the like.

In addition, the battery 110 may have a cylindrical shape having a diameter of 10 mm and a length of 37 mm, but is not limited thereto. The capacity of the battery 110 may be 120 mAh or more, and may be a rechargeable battery or a disposable battery. For example, when the battery 110 can be charged, the charging rate (C-rate) of the battery 110 may be 10C, and the discharge rate (C-rate) may be 16C to 20C, but is not limited thereto. In addition, for stable use, the battery 110 may be manufactured so that 80% or more of the total capacity can be secured even when charging / discharging proceeds 8000 times.

Here, whether the battery 110 is fully charged or completely discharged may be determined by which level of power stored in the battery 110 is compared to the total capacity of the battery 110. For example, when the power stored in the battery 110 is 95% or more of the total capacity, it may be determined that the battery 110 is fully charged. In addition, when the power stored in the battery 110 is 10% or less of the total capacity, it may be determined that the battery 110 is completely discharged. However, the criteria for determining whether the battery 110 is fully charged and fully discharged is not limited to the above-described example.

The heater 2130 is heated by electric power supplied from the battery 110. When the cigarette is inserted into the holder 1, the heater 2130 is located inside the cigarette. Thus, the heated heater 2130 can increase the temperature of the aerosol-generating material in the cigarette.

The heater 2130 may have a shape in which a cylinder and a cone are combined. For example, the heater 2130 has a cylindrical shape having a diameter of about 2 mm and a length of about 23 mm, and the end 2131 of the heater 2130 may be closed at an acute angle, but is not limited thereto. In other words, the heater 2130 may be applied without limitation as long as it can be inserted into the cigarette. In addition, only a portion of the heater 2130 may be heated. For example, assuming that the length of the heater 2130 is 23 mm, only 12 mm from the end 2131 of the heater 2130 is heated, and the remaining portion of the heater 2130 may not be heated.

The heater 2130 may be an electric resistive heater. For example, the heater 2130 may include an electrically conductive track, and the heater 2130 may be heated as current flows through the electrically conductive track.

For stable use, the heater 2130 may be supplied with power according to the specifications of 3.2 V, 2.4 A, 8 W, but is not limited thereto. For example, when power is supplied to the heater 2130, the surface temperature of the heater 2130 may rise to 400 ° C or higher. The surface temperature of the heater 2130 may rise to about 350 ° C. before 15 seconds are exceeded from when power is supplied to the heater 2130.

The holder 1 may be provided with a separate temperature sensing sensor. Alternatively, the holder 1 is not provided with a temperature sensor, and the heater 2130 may serve as a temperature sensor. For example, the heater 2130 may further include a second electrically conductive track for temperature sensing in addition to the first electrically conductive track for heat generation.

For example, if the voltage across the second electrically conductive track and the current flowing through the second electrically conductive track are measured, the resistance R can be determined. At this time, the temperature T of the second electrically conductive track may be determined by Equation 1 below.

In Equation 1, R means the current resistance value of the second electrically conductive track, R0 means the resistance value at the temperature T0 (for example, 0 ° C), and α is the resistance temperature of the second electrically conductive track Means a coefficient. Since the conductive material (for example, metal) has an intrinsic resistance temperature coefficient, α may be predetermined depending on the conductive material constituting the second electrically conductive track. Accordingly, when the resistance R of the second electrically conductive track is determined, the temperature T of the second electrically conductive track can be calculated by Equation 1 above.

The heater 2130 may be composed of at least one electrically conductive track (first electrically conductive track and second electrically conductive track). For example, the heater 2130 may include two first electrically conductive tracks and one or two second electrically conductive tracks, but is not limited thereto.

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

Further, the holder 1 may include both an electrically conductive track and a temperature sensing sensor that serve as a temperature sensing sensor.

The control unit 120 generally controls the operation of the holder 1. Specifically, the controller 120 controls the operation of the battery 110 and the heater 2130 as well as other components included in the holder 1. In addition, the controller 120 may determine the state of each of the components of the holder 1 to determine whether the holder 1 is in an operable state.

The control unit 120 includes at least one processor. The processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which programs executable on the microprocessor are stored. In addition, those of ordinary skill in the art to which this embodiment pertains may understand that it may be implemented in other types of hardware.

For example, the controller 120 may control the operation of the heater 2130. The controller 120 may control the amount of power supplied to the heater 2130 and the time during which the power is supplied so that the heater 2130 is heated to a predetermined temperature or maintain an appropriate temperature. In addition, the controller 120 may check the state of the battery 110 (eg, the remaining amount of the battery 110, etc.), and generate a notification signal if necessary.

In addition, the controller 120 may check the presence or absence of the puff of the user and the strength of the puff, and may count the number of puffs. In addition, the control unit 120 may continuously check the time that the holder 1 is operating. In addition, the control unit 120 checks whether the cradle 2 to be described later is combined with the holder 1, and controls the operation of the holder 1 according to the engagement or separation of the cradle 2 and the holder 1. You can.

Meanwhile, the holder 1 may further include general-purpose components in addition to the battery 110, the controller 120, and the heater 2130.

For example, the holder 1 may include a display capable of outputting visual information or a motor for outputting tactile information. As an example, when the holder 1 includes a display, the control unit 120 displays information about the state of the holder 1 to the user (eg, whether the holder can be used, etc.), a heater ( Information about 2130 (eg, start of preheating, preheating progress, completion of preheating, etc.), information related to battery 110 (eg, remaining capacity of battery 110, availability, etc.), holder 1 ) Information related to the reset (for example, reset timing, reset progress, reset completion, etc.), information related to cleaning of the holder 1 (for example, cleaning time, cleaning required, cleaning progress, cleaning completion, etc.), Information related to charging of the holder 1 (e.g., charging required, charging progress, charging completed, etc.), information related to puffs (e.g., number of puffs, notice of puff termination), or information related to safety (e.g. (E.g., usage time has elapsed). As another example, when the holder 1 includes a motor, the controller 120 may transmit the above-described information to the user by generating a vibration signal using the motor.

In addition, the holder 1 may include a terminal coupled with at least one input device (eg, a button) and / or cradle 2 that allows a user to control the function of the holder 1. For example, the user can perform various functions using the input device of the holder 1. Multiple functions of the holder 1 by adjusting the number of times the user presses the input device (e.g., once, twice, etc.) or the time the input device is pressed (e.g., 0.1 seconds, 0.2 seconds, etc.) You can perform any function you want. As the user operates the input device, the holder 1 has a function of preheating the heater 2130, a function of adjusting the temperature of the heater 2130, a function of cleaning the space where the cigarette is inserted, and a holder 1 A function of checking whether it is in an operable state, a function of displaying the remaining amount (available power) of the battery 110, a reset function of the holder 1, and the like can be performed. However, the function of the holder 1 is not limited to the examples described above.

Further, the holder 1 may include a puff detection sensor, a temperature detection sensor, and / or a cigarette insertion detection sensor. For example, the puff detection sensor may be implemented by a general pressure sensor, and the cigarette insertion detection sensor may be implemented by a general capacitive sensor or a resistance sensor. In addition, the holder 1 may be manufactured in a structure that allows external air to flow in / out even when a cigarette is inserted.

7A and 7B are views illustrating an example of a holder in various aspects.

7A is a view showing an example of the holder 1 as viewed from the first direction. As shown in Figure 7a, the holder 1 may be manufactured in a cylindrical shape, but is not limited thereto. The case 2140 of the holder 1 may be separated by a user's action, and a cigarette may be inserted into the end 2141 of the case 2140. In addition, the holder 1 may include a button 2150 that allows a user to control the holder 1 and a display 2160 on which an image is output.

7B is a view showing an example of the holder 1 as viewed from the second direction. The holder 1 may include a terminal 2170 coupled with the cradle 2. When the terminal 2170 of the holder 1 is coupled with the terminal 2260 of the cradle 2, the battery 110 of the holder 1 is charged by the power supplied by the battery 210 of the cradle 2 You can. In addition, through the terminal 2170 and the terminal 2260, the holder 1 may operate by the power supplied by the battery 210 of the cradle 2, and communicate between the holder 1 and the cradle 2 (Transmission and reception of signals) is possible. For example, the terminal 2170 may be composed of four micro pins, but is not limited thereto.

8 is a configuration diagram showing an example of a cradle.

Referring to FIG. 8, the cradle 2 includes a battery 210 and a control unit 220. In addition, the cradle 2 includes an inner space 2230 into which the holder 1 can be inserted. For example, the inner space 2230 may be formed on one side of the cradle 2. Therefore, even if the cradle 2 does not include a separate lid, the holder 1 can be inserted into the cradle 2 and fixed.

In the cradle 2 shown in FIG. 8, only the components related to this embodiment are shown. Therefore, it can be understood by those of ordinary skill in the art related to this embodiment that other general-purpose components other than those shown in FIG. 8 may be further included in the cradle 2.

The battery 210 supplies power used for the cradle 2 to operate. In addition, the battery 210 may supply power for charging the battery 110 of the holder 1. For example, when the holder 1 is inserted into the cradle 2 and the terminal 2170 of the holder 1 and the terminal 2260 of the cradle 2 are combined, the battery 210 of the cradle 2 is Electric power may be supplied to the battery 110 of the holder 1.

In addition, when the holder 1 and the cradle 2 are combined, the battery 210 may supply power used for the holder 1 to operate. For example, when the terminal 2170 of the holder 1 and the terminal 2260 of the cradle 2 are combined, regardless of whether the battery 110 of the holder 1 is discharged, the holder 1 is a cradle. (2) can operate using the power supplied by the battery 210.

An example of the type of the battery 210 may be the same as the example of the battery 110 described above with reference to FIG. 6. The capacity of the battery 210 may be larger than the capacity of the battery 110, for example, the capacity of the battery 210 may be 3000mAh or more, but the capacity of the battery 210 is not limited to the above-described example Does not.

The control unit 220 generally controls the operation of the cradle 2. The control unit 220 may control the operation of all components of the cradle 2. In addition, the control unit 220 may determine whether the holder 1 and the cradle 2 are coupled, and control the operation of the cradle 2 according to the combination or separation of the cradle 2 and the holder 1.

For example, when the holder 1 and the cradle 2 are combined, the control unit 220 charges the battery 110 or heats the heater 2130 by supplying the power of the battery 210 to the holder 1 I can do it. Therefore, even when the remaining amount of the battery 110 is small, the user can continuously smoke by combining the holder 1 and the cradle 2.

The control unit 120 includes at least one processor. The processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which programs executable on the microprocessor are stored. In addition, those of ordinary skill in the art to which this embodiment pertains may understand that it may be implemented in other types of hardware.

Meanwhile, the cradle 2 may further include general-purpose components in addition to the battery 210 and the control unit 220. For example, the cradle 2 may include a display capable of outputting visual information. For example, when the cradle 2 includes a display, the control unit 220 generates a signal to be displayed on the display, so that the user can use the battery 210 (for example, the remaining capacity of the battery 210) Information related to the reset of the cradle 2 (e.g., when to reset, reset progress, reset completed, etc.), cleaning of the holder 1 (e.g., when to clean, need cleaning, cleaning) Information related to the progress, cleaning completion, etc., and charging of the cradle 2 (eg, charging required, charging progress, charging completion, etc.) may be transmitted.

In addition, the cradle 2 includes at least one input device (for example, a button) that allows a user to control the function of the cradle 2, a terminal 2260 and / or a battery 210 that engages the holder 1 ) May include an interface for charging (eg, a USB port, etc.).

For example, the user can execute various functions using the input device of the cradle 2. By adjusting the number of times the user presses the input device or the time the user presses the input device, a desired function among a plurality of functions of the cradle 2 can be executed. As the user operates the input device, the cradle 2 has a function of preheating the heater 2130 of the holder 1, a function of adjusting the temperature of the heater 2130 of the holder 1, within the holder 1 A function to clean the space where the cigarette is inserted, a function to check whether the cradle 2 is operable, a function to display the remaining amount (power available) of the battery 210 of the cradle 2, and a reset of the cradle 2 Functions and the like can be performed. However, the function of the cradle 2 is not limited to the examples described above.

9A and 9B are diagrams illustrating an example of a cradle in various aspects.

9A is a view showing an example of the cradle 2 viewed from the first direction. On one side of the cradle 2 is a space 2230 into which the holder 1 can be inserted. Further, even if the cradle 2 does not include a separate fixing means such as a lid, the holder 1 can be inserted into the cradle 2 and fixed. In addition, the cradle 2 may include a button 2240 that allows a user to control the cradle 2 and a display 2250 on which an image is output.

9B is a view showing an example of the cradle 2 viewed from the second direction. The cradle 2 may include a terminal 2260 coupled with the inserted holder 1. When the terminal 2260 is coupled to the terminal 2170 of the holder 1, the battery 110 of the holder 1 can be charged by the power supplied by the battery 210 of the cradle 2. In addition, through the terminal 2170 and the terminal 2260, the holder 1 may be operated by the power supplied by the battery 210 of the cradle 2, and the signal between the holder 1 and the cradle 2 It is possible to send and receive. For example, the terminal 2260 may be composed of four micro pins, but is not limited thereto.

As described above, the holder 1 can be inserted into the inner space 2230 of the cradle 2. Further, the holder 1 may be completely inserted into the cradle 2, or may be tilted while inserted into the cradle 2. Hereinafter, examples in which the holder 1 is inserted into the cradle 2 will be described.

10 is a view showing an example in which the holder is inserted into the cradle.

Referring to FIG. 10, an example in which the holder 1 is inserted into the cradle 2 is illustrated. Since the space 2230 into which the holder 1 is to be inserted is present on one side of the cradle 2, the inserted holder 1 may not be exposed to the outside by the other sides of the cradle 2. Thus, the cradle 2 may not include other configurations (eg, lids) for not exposing the holder 1 to the outside.

The cradle 2 may include at least one binding member 2227 and 2272 to increase binding strength with the holder 1. In addition, the holder 1 may also include at least one binding member 2181. Here, the binding members 2181, 2271, and 2272 may be magnets, but are not limited thereto. In FIG. 10, for convenience of explanation, the holder 1 includes one binding member 2181, and the cradle 2 includes two binding members 2227 and 2272, but the binding member The number of (2181, 2271, 2272) is not limited to this.

The holder 1 can include a binding member 2181 in a first position, and the cradle 2 can include a binding member 2701, 2272 in a second position and a third position, respectively. At this time, the first position and the third position may be positions facing each other when the holder 1 is inserted into the cradle 2.

As the holder 1 and the cradle 2 include binding members 2181, 2271, and 2272, even if the holder 1 is inserted into one side of the cradle 2, the holder 1 and the cradle 2 are It can bind more strongly. In other words, the holder 1 and the cradle 2, the terminal (2170, 2260) in addition to the binding member (2181, 2271, 2272) is further included, the holder 1 and the cradle (2) can be more strongly attached have. Therefore, even if the cradle 2 does not have a separate configuration (for example, a lid), the inserted holder 1 may not be easily separated from the cradle 2.

In addition, if it is determined that the holder 1 is completely inserted into the cradle 2 by the terminals 2170, 2260 and / or the binding members 2181, 2272, and 2272, the control unit 220 may control the battery 210. The battery 110 of the holder 1 can be charged using electric power.

11 is a view showing an example in which the holder is tilted in the inserted state in the cradle.

Referring to FIG. 11, the holder 1 is tilted inside the cradle 2. Here, the tilt means that the holder 1 is inclined at a certain angle in the state inserted into the cradle 2.

As shown in Fig. 10, when the holder 1 is fully inserted into the cradle 2, the user cannot smoke. In other words, when the holder 1 is completely inserted into the cradle 2, a cigarette cannot be inserted into the holder 1. Therefore, the user cannot smoke while the holder 1 is fully inserted into the cradle 2.

11, when the holder 1 is tilted, the end 2141 of the holder 1 is exposed to the outside. Therefore, the user can insert a cigarette at the end 2141 and inhale (smoking) the generated aerosol. The tilt angle θ may be secured at a sufficient angle so that the cigarette is not bent or damaged when the cigarette is inserted into the end 2141 of the holder 1. For example, the holder 1 can be tilted as much as the entire cigarette insertion hole included in the end 2141 can be exposed to the outside. For example, the range of the tilt angle θ may be 0 ° or more and 180 ° or less, and preferably 10 ° or more and 90 ° or less. More preferably, the range of the tilt angle θ is 10 ° or more and 20 ° or less, 10 ° or more and 30 ° or less, 10 ° or more and 40 ° or less, 10 ° or more, 50 ° or less, or 10 ° or more and 60 ° or less You can.

Further, even if the holder 1 is tilted, the terminal 2170 of the holder 1 and the terminal 2260 of the cradle 2 are coupled to each other. Therefore, the heater 2130 of the holder 1 can be heated by the power supplied by the battery 210 of the cradle 2. Therefore, even when the remaining amount of the battery 110 of the holder 1 is small or absent, the holder 1 can generate an aerosol using the battery 210 of the cradle 2.

11 shows an example in which the holder 1 includes one binding member 2182 and the cradle 2 includes two binding members 2273 and 2274. For example, the positions of each of the binding members 2182, 2273, and 2274 are as described above with reference to FIG. If it is assumed that the binding members 2182, 2273, and 2274 are magnets, the magnet strength of the binding member 2274 may be greater than that of the binding member 2273. Therefore, even if the holder 1 is tilted, the holder 1 may not be completely separated from the cradle 2 by the binding member 182 and the binding member 2274.

In addition, when it is determined that the holder 1 is tilted by the terminals 2170, 2260 and / or the binding members 2182, 2273, 2274, the control unit 220 uses the power of the battery 210, the holder The heater 2130 of (1) may be heated or the battery 110 may be charged.

12A to 12B are views illustrating examples in which the holder is inserted into the cradle.

12A shows an example in which the holder 1 is completely inserted into the cradle 2. When the holder 1 is completely inserted into the cradle 2, in order to minimize the user's contact with the holder 1, the inner space 2230 of the cradle 2 may be manufactured to be sufficiently secured. When the holder 1 is completely inserted into the cradle 2, the control unit 220 supplies power of the battery 210 to the holder 1 so that the battery 110 of the holder 1 can be charged.

12B shows an example in which the holder 1 is tilted with the cradle 2 inserted. When the holder 1 is tilted, the control unit 220 holds the power of the battery 210 so that the battery 110 of the holder 1 can be charged or the heater 2130 of the holder 1 can be heated. (1).

13 is a flowchart illustrating an example in which the holder and the cradle operate.

The method of producing the aerosol shown in FIG. 13 consists of steps that are processed in time series in the holder 1 shown in FIG. 6 or the cradle 2 shown in FIG. 8. Accordingly, it can be seen that the contents described above with respect to the holder 1 shown in FIG. 6 and the cradle 2 shown in FIG. 8 are applied to the method shown in FIG. 13 even if omitted below.

In step 2710, the holder 1 determines whether it has been inserted into the cradle 2. For example, the control unit 120 may determine whether the holder 1 and the terminals 2170, 2260 of the cradle 2 are connected to each other and / or whether the binding members 2181, 2271, 2272 operate. It can be determined whether 1) has been inserted into the cradle 2.

When the holder 1 is inserted into the cradle 2, the process proceeds to step 2720, and when the holder 1 is separated from the cradle 2, the process proceeds to step 2730.

In step 2720, the cradle 2 determines whether the holder 1 is tilted. For example, the control unit 220 may include the holder 1 and the holders 2170, 2260 of the cradle 2 connected to each other and / or whether the binding members 2182, 2273, 2274 operate according to the holder ( It can be determined whether 1) is tilted.

In step 2720, the cradle 2 is described as determining whether the holder 1 is tilted, but is not limited thereto. In other words, whether the holder 1 is tilted may be determined by the control unit 120 of the holder 1.

If the holder 1 is tilted, the process proceeds to step 2740, and if the holder 1 is not tilted (ie, the holder 1 is completely inserted into the cradle 2), the process proceeds to step 2770.

In step 2730, the holder 1 determines whether the usage conditions of the holder 1 are satisfied. For example, the control unit 120 may determine whether the use condition is satisfied by checking whether the remaining amount of the battery 110 and other components of the holder 1 can operate normally.

If the use condition of the holder 1 is satisfied, the process proceeds to step 2740, otherwise, the procedure ends.

In step 2740, the holder 1 informs the user that it is available. For example, the control unit 120 may output an image indicating that it is usable on the display of the holder 1 or may generate a vibration signal by controlling the motor of the holder 1.

In step 2750, the heater 2130 is heated. As an example, when the holder 1 is separated from the cradle 2, the heater 2130 may be heated by the power of the battery 110 of the holder 1. As another example, when the holder 1 is tilted, the heater 2130 may be heated by the power of the battery 210 of the cradle 2.

The control unit 120 of the holder 1 or the control unit 220 of the cradle 2 checks the temperature of the heater 2130 in real time and the amount of power supplied to the heater 2130 and the power to the heater 2130 You can adjust the time. For example, the controllers 120 and 220 may check the temperature of the heater 2130 in real time through the temperature sensing sensor included in the holder 1 or the electrically conductive track of the heater 2130.

In step 2760, the holder 1 performs an aerosol-generating mechanism. For example, the controllers 120 and 220 check the temperature of the heater 2130 that changes as the user performs a puff to adjust the amount of power supplied to the heater 2130 or supply power to the heater 2130. You can stop. In addition, the controllers 120 and 220 may count the number of puffs of the user, and output information indicating that cleaning of the holder is necessary when a certain number of puffs (for example, 1500 times) is reached.

In step 2770, the cradle 2 performs charging of the holder 1. For example, the control unit 220 may charge the holder 1 by supplying the power of the battery 210 of the cradle 2 to the battery 110 of the holder 1.

Meanwhile, the controllers 120 and 220 may stop the operation of the holder 1 according to the number of puffs of the user or the operation time of the holder 1. Hereinafter, an example in which the control units 120 and 220 stop the operation of the holder 1 will be described with reference to FIG. 14.

14 is a flowchart for explaining another example in which the holder operates.

The method of producing the aerosol shown in FIG. 14 consists of steps that are processed in time series in the holder 1 shown in FIG. 6 and the cradle 2 shown in FIG. 8. Accordingly, it can be seen that the contents described above with respect to the holder 1 illustrated in FIG. 6 or the cradle 2 illustrated in FIG. 8 are applied to the method illustrated in FIG. 14 even if omitted.

In step 2810, the controllers 120 and 220 determine whether the user has puffed. For example, the controllers 120 and 220 may determine whether the user has puffed through the puff detection sensor included in the holder 1.

In step 2820, an aerosol is generated according to the user's puff. The control units 120 and 220 may adjust power supplied to the heater 2130 according to the temperature of the user's puff and heater 2130 as described above with reference to FIG. 13. Also, the controllers 120 and 220 count the number of puffs of the user.

In operation 2830, the controller 120 or 220 determines whether the number of puffs of the user is equal to or greater than the number of puffs. For example, assuming that the puff limit number is set to 14, the controllers 120 and 220 determine whether the counted puff count is 14 or more.

Meanwhile, when the number of puffs of the user is close to the number of puffs (for example, when the number of puffs of the user is 12), the controllers 120 and 220 may output a warning signal through a display or a vibration motor.

If the number of puffs of the user is greater than or equal to the number of puffs, the process proceeds to step 2850. If the number of puffs of the user is less than the number of puffs, the process proceeds to step 2840.

In operation 2840, the controllers 120 and 220 determine whether the time at which the holder 1 is operated is equal to or greater than the operation time limit. Here, the time when the holder 1 is operated means the time accumulated from the time when the holder started to the operation to the present. For example, assuming that the operation timeout is set to 10 minutes, the controllers 120 and 220 determine whether the holder 1 is operating for 10 minutes or more.

On the other hand, when the operating time of the holder 1 is close to the operation time limit (for example, when the holder 1 is operating for 8 minutes), the controllers 120 and 220 signal a warning through the display or vibration motor Can output

If the holder 1 is operating for more than the operation time limit, the process proceeds to step 2850, and if the holder 1 is less than the operation time limit, the operation proceeds to step 2820.

In operation 2850, the controllers 120 and 220 forcibly end the operation of the holder. In other words, the control unit (120, 220) stops the aerosol generating mechanism of the holder. For example, the controllers 120 and 220 may block the power supplied to the heater 2130, thereby forcibly terminating the operation of the holder.

15 is a flowchart for explaining an example of the operation of the cradle.

The flowchart shown in FIG. 15 is composed of steps processed in time series in the cradle 2 shown in FIG. 8. Therefore, it can be seen that the contents described above with respect to the cradle 2 shown in FIG. 8 are applied to the flowchart of FIG. 15 even if the contents are omitted below.

Although not shown in FIG. 15, the operation of the cradle 2 to be described below can be performed regardless of whether the holder 1 is inserted into the cradle 2.

In step 2910, the control unit 220 of the cradle 2 determines whether the button 2240 is pressed. If the button 2240 is pressed, the process proceeds to step 2920, and if the button 2240 is not pressed, the process proceeds to step 2930.

In step 2920, the cradle 2 displays the status of the battery. For example, the control unit 220 may output information about the current state of the battery 210 (eg, remaining amount, etc.) to the display 2250.

In step 2930, the control unit 220 of the cradle 2 determines whether a cable is connected to the cradle 2. For example, the control unit 220 determines whether a cable is connected to an interface (eg, a USB port) included in the cradle 2. If the cable is connected to the cradle 2, the process proceeds to step 2940, otherwise the procedure is terminated.

In step 2940, the cradle 2 performs a charging operation. For example, the cradle 2 charges the battery 210 using power supplied through a connected cable.

As described above, a cigarette may be inserted into the holder 1. The cigarette contains an aerosol-generating material, and aerosol is generated by the heated heater 2130.

Hereinafter, an example of a cigarette that can be inserted into the holder 1 will be described with reference to FIGS. 16 to 18F.

16 is a view showing an example in which a cigarette is inserted into the holder.

Referring to FIG. 16, the cigarette 3 may be inserted into the holder 1 through the end 2141 of the case 2140. When the cigarette 3 is inserted, the heater 2130 is located inside the cigarette 3. Thus, the aerosol-generating material of the cigarette 3 is heated by the heated heater 2130, thereby generating an aerosol.

The cigarette 3 can be similar to a typical combustion cigarette. For example, the cigarette 3 may be divided into a first portion 3310 including an aerosol-generating material and a second portion 3320 including a filter. Meanwhile, the cigarette 3 according to an embodiment may include an aerosol-generating material in the second portion 3320. For example, an aerosol-generating material made in the form of granules or capsules may be inserted into the second portion 3320.

The entire first portion 3310 is inserted into the holder 1, and the second portion 3320 may be exposed to the outside. Alternatively, only a portion of the first portion 3310 may be inserted into the holder 1, or a portion of the first portion 3310 and the second portion 3320 may be inserted.

The user may inhale the aerosol in the state where the second part 3320 is mouthed. At this time, the aerosol is mixed with external air and delivered to the user's mouth. As shown in FIG. 16, external air may be introduced 3110 through at least one hole formed on the surface of the cigarette 3, or introduced through at least one air passage formed in the holder 1 (3120). For example, the air passage formed in the holder 1 may be manufactured to be opened and closed by a user.

17A and 17B are diagrams showing an example of a cigarette.

17A and 17B, the cigarette 3 includes a tobacco rod 3300, a first filter segment 3321, a cooling structure 3322, and a second filter segment 3323. The first portion 3310 described above with reference to FIG. 16 includes a tobacco rod 3300, and the second portion 3320 includes a first filter segment 3321, a cooling structure 3322, and a second filter segment 3323 ).

Meanwhile, when comparing FIGS. 17A and 17B, the cigarette 3 of FIG. 17B further includes a fourth wrapper 3344 compared to the cigarette 3 of FIG. 17A.

However, the structure of the cigarette 3 shown in FIGS. 17A and 17B is only an example, and some components may be omitted. For example, the cigarette 3 may not include one or more of the first filter segment 3321, the cooling structure 3322, and the second filter segment 3323.

Cigarette rod 3300 includes aerosol-generating material. For example, the aerosol-generating material may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. The length of the tobacco rod 3300 may be between about 7 mm and 15 mm, or preferably about 12 mm. Further, the diameter of the tobacco rod 3300 may be 7 mm to 9 mm, or preferably, about 7.9 mm. The length and diameter of the cigarette rod 3300 are not limited to the above-described numerical range.

In addition, the tobacco rod 3300 may contain other additives such as flavoring agents, wetting agents and / or acetate compounds. For example, flavoring agents are licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, Vanilla, lemon oil, orange oil, mint oil, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, sage, spearmint, ginger, coriander or coffee. In addition, the wetting agent may include glycerin or propylene glycol.

As an example, the cigarette rod 3300 may be filled with cigarette cuts. Here, tobacco cuts can be produced by finely crushing the tobacco sheet.

In order for the wide tobacco sheet to be filled in the narrow space of the tobacco rod 3300, an additional process is required to allow the tobacco sheet to be easily folded. Therefore, compared to filling the cigarette rod 3300 with a cigarette sheet, it is easier to fill the cigarette rod 3300 with cigarette cuts, and the productivity and efficiency of the process for producing the cigarette rod 3300 may be higher. have.

As another example, the tobacco rod 3300 may be filled with a plurality of tobacco strands in which a tobacco sheet is shredded. For example, the tobacco rod 3300 may be formed by combining a plurality of tobacco strands in the same direction (parallel) or randomly. One tobacco strand may be manufactured in a cuboid shape having a horizontal length of 1 mm, a vertical length of 12 mm, and a thickness (height) of 0.1 mm, but is not limited thereto.

Compared to the cigarette rod 3300 being filled with a cigarette sheet, the cigarette rod 3300 filled with cigarette strands may generate a greater amount of aerosol. Assuming that they are filled in the same space, the tobacco strands ensure a larger surface area compared to the tobacco sheet. The large surface area means that there is more opportunity for the aerosol-generating material to contact the outside air. Therefore, when the tobacco rod 3300 is filled with tobacco strands, more aerosols can be produced compared to that filled with a tobacco sheet.

In addition, when separating the cigarette 3 from the holder 1, the cigarette rod 3300 filled with cigarette strands can be separated more easily than that filled with a cigarette sheet. Compared to the tobacco sheet, the frictional forces generated by the tobacco strands contacting the heater 2130 are smaller. Therefore, when the cigarette rod 3300 is filled with cigarette strands, it can be more easily separated from the holder 1 compared to that filled with a cigarette sheet.

The tobacco sheet may be formed by crushing the tobacco raw material in a slurry form and then drying the slurry. For example, 15-30% of aerosol-generating material may be added to the slurry. Tobacco raw materials may be tobacco leaf flakes, tobacco stems, tobacco dust generated during tobacco processing and / or major side strips of tobacco leaves. In addition, the tobacco sheet may contain other additives such as wood cellulose fiber.

The first filter segment 3321 may be a cellulose acetate filter. For example, the first filter segment 3321 may be in the form of a tube including a hollow therein. The length of the first filter segment 3321 may be from about 7 mm to 15 mm, or preferably, from about 7 mm. The length of the first filter segment 3321 may be shorter than about 7 mm, but it is desirable to have a length that does not impair the function of at least one cigarette element (eg, cooling element, capsule, acetate filter, etc.). . The length of the first filter segment 3321 is not limited to the above-described numerical range. On the other hand, the length of the first filter segment 3321 is expandable, and the length of the entire cigarette 3 may be adjusted according to the length of the first filter segment 3321.

The second filter segment 3323 may also be a cellulose acetate filter. For example, the second filter segment 3323 may be made of a recess filter including hollow, but is not limited thereto. The length of the second filter segment 3323 may be from about 5 mm to 15 mm, or preferably, from about 12 mm. The length of the second filter segment 3323 is not limited to the above-described numerical range.

Also, at least one capsule 3324 may be included in the second filter segment 3323. Here, the capsule 3324 may be a structure in which a content liquid containing a fragrance is wrapped with a film. For example, the capsule 3324 may have a spherical or cylindrical shape. The diameter of the capsule 3324 may be 2 mm or more, or preferably 2-4 mm.

The material forming the coating of the capsule 3324 may be starch and / or gelling agent. For example, gelling agent or gelatin may be used as the gelling agent. In addition, a gelling aid may be further used as a material for forming the film of the capsule 3324. Here, as a gelling aid, calcium chloride can be used, for example. In addition, a plasticizer may be further used as a material for forming the film of the capsule 3324. Here, as the plasticizer, glycerin and / or sorbitol can be used. In addition, a coloring agent may be further used as a material for forming the film of the capsule 3324.

For example, menthol, essential oil of a plant, etc. may be used as a fragrance contained in the contents of the capsule. Moreover, as a solvent of the fragrance | flavor contained in an inner liquid, a medium chain fatty acid triglyceride (MCT) can be used, for example. In addition, the content liquid may contain other additives such as a pigment, an emulsifier, and a thickener.

The cooling structure 3322 cools the aerosol generated by the heater 2130 heating the tobacco rod 3300. Therefore, the user can inhale the aerosol cooled to a suitable temperature. The length of the cooling structure 3322 may be about 10 mm to 20 mm, or preferably, about 14 mm. The length of the cooling structure 3322 is not limited to the above-described numerical range.

For example, the cooling structure 3322 can be made of polylactic acid. The cooling structure 3322 may be manufactured in various forms to increase the surface area per unit area (ie, the surface area in contact with the aerosol). Various examples of the cooling structure 3322 will be described later with reference to FIGS. 18A to 18F.

The tobacco rod 3300 and the first filter segment 3321 may be packaged by the first wrapper 3331. For example, the first wrapper 3331 may be made of a paper packaging material having oil resistance.

The cooling structure 3322 and the second filter segment 3323 may be packaged by a second wrapper 3332. In addition, the entire cigarette 3 may be repackaged by a third wrapper 3333. For example, the second wrapper 3332 and the third wrapper 3333 may be made of general paper packaging materials. Optionally, the second wrapper 3332 may be an oil resistant hard wrapping paper or a PLA scented paper. Also, the second wrapper 3332 may wrap the second filter segment 3323 portion, and additionally further pack the second filter segment 3323 and the cooling structure 3322.

Referring to FIG. 17B, the cigarette 3 may include a fourth wrapper 3344. At least one of the tobacco rod 3300 and the first filter segment 3321 may be packaged by a fourth wrapper 3344. In other words, only the tobacco rod 3300 may be packaged by the fourth wrapper 334, and the tobacco rod 3300 and the first filter segment 3321 may be packaged by the fourth wrapper 3344. For example, the fourth wrapper 3340 may be made of a paper packaging material.

The fourth wrapper 3340 may be produced by applying (or coating) a predetermined material to one or both surfaces of the paper packaging material. Here, as an example of a predetermined material, silicon may be applicable, but is not limited thereto. Silicone has characteristics such as heat resistance with little change with temperature, oxidation resistance without oxidation, resistance to various chemicals, water repellency to water, or electrical insulation. However, even if it is not silicon, any material having the above-described properties may be applied (or coated) to the fourth wrapper 3340 without limitation.

Meanwhile, in FIG. 17B, the cigarette 3 is illustrated as including both the first wrapper 3331 and the fourth wrapper 3344, but is not limited thereto. In other words, the cigarette 3 may include only one of the first wrapper 3331 and the fourth wrapper 3344.

The fourth wrapper 3344 can prevent the cigarette 3 from burning. For example, if the cigarette rod 3300 is heated by the heater 2130, there is a possibility that the cigarette 3 is burned. Specifically, when the temperature rises above the ignition point of any one of the substances included in the cigarette rod 3300, the cigarette 3 may be burned. Even in this case, since the fourth wrapper 3340 includes a non-combustible material, the phenomenon that the cigarette 3 is burned can be prevented.

In addition, the fourth wrapper 3340 can prevent the holder 1 from being contaminated by substances generated in the cigarette 3. By the user's puff, liquid substances can be produced in the cigarette 3. For example, the aerosol generated in the cigarette 3 is cooled by external air, whereby liquid substances (eg, moisture, etc.) can be generated. As the fourth wrapper 3344 wraps the tobacco rod 3300 and / or the first filter segment 3321, the liquid substances generated in the cigarette 3 can be prevented from leaking out of the cigarette 3 Can. Therefore, the phenomenon that the case 2140 of the holder 1 is contaminated by the liquid substances generated in the cigarette 3 can be prevented.

18A to 18F are views showing examples of the cooling structure of the cigarette.

For example, the cooling structure shown in FIGS. 18A-18F can be fabricated using fibers produced from pure polylactic acid (PLA).

As an example, when a film (sheet) is produced by filling a film (sheet) and a cooling structure, the film (sheet) may be broken by an external impact. In this case, the effect of the cooling structure cooling the aerosol is reduced.

As another example, in the case of manufacturing a cooling structure by extrusion molding, the efficiency of the process is lowered as processes such as cutting of the structure are added. In addition, there are limitations in manufacturing cooling structures in various shapes.

As the cooling structure according to an embodiment is manufactured using polylactic acid fibers (eg, weaving), the risk that the cooling structure is deformed or loses function by external impact may be lowered. In addition, by changing the method of combining the fibers, it is possible to manufacture a cooling structure having various shapes.

In addition, by fabricating a cooling structure using fibers, the surface area in contact with the aerosol is increased. Therefore, the aerosol cooling effect of the cooling structure can be further improved.

Referring to FIG. 18A, the cooling structure 3510 may be manufactured in a cylindrical shape, and at least one air passage 3511 may be formed on a cross section of the cooling structure 3510.

Referring to FIG. 18B, the cooling structure 3520 may be formed of a structure in which a plurality of fibers are entangled with each other. At this time, the aerosol may flow between fibers, and a vortex may be formed according to the shape of the cooling structure 3520. The formed vortex widens the area where the aerosol contacts in the cooling structure 3520, and increases the time that the aerosol stays in the cooling structure 3520. Thus, the heated aerosol can be cooled effectively.

Referring to FIG. 18C, the cooling structure 3530 may be manufactured in a form in which a plurality of bundles 3531 are collected.

Referring to FIG. 18D, the cooling structure 3540 may be filled with granules made of polylactic acid, legume, or charcoal, respectively. In addition, the granules can also be made of a mixture of polylactic acid, legume and charcoal. On the other hand, the granule may further include an element capable of increasing the cooling effect of the aerosol in addition to polylactic acid, legume and / or charcoal.

Referring to FIG. 18E, the cooling structure 3550 may include a first section 3551 and a second section 3552.

The first cross-section 3551 borders the first filter segment 3321, and may include an air gap through which the aerosol flows. The second cross-section 3522 borders the second filter segment 3323 and may include voids through which aerosols can be released. For example, the first cross section 3551 and the second cross section 3522 may include a single pore having the same diameter, but the diameter and number of the pores included in the first cross section 3551 and the second cross section 3552 Is not limited to this.

In addition, the cooling structure 3550 may include a third end surface 353 including a plurality of voids, between the first end surface 3551 and the second end surface 3552. For example, the diameter of the plurality of voids included in the third section 353 may be smaller than the diameter of the voids included in the first section 3551 and the second section 3522. In addition, the number of voids included in the third section 353 may be greater than the number of voids included in the first section 3551 and the second section 3522.

Referring to FIG. 18F, the cooling structure 3560 may include a first cross-section 3651 that abuts the first filter segment 3321 and a second cross-section 3562 that abuts the second filter segment 3323. . Additionally, the cooling structure 3560 can include one or more tubular elements 3563. For example, the tubular element 3563 can penetrate the first cross-section 3651 and the second cross-section 3562. In addition, the tubular element 3563 may be packaged in a microporous packaging material, and may be filled with a filler (eg, the granules described above with reference to FIG. 18D) that can increase the cooling effect of the aerosol.

Meanwhile, the above-described method may be implemented as a program executable on a computer, and may be implemented on a general-purpose digital computer that operates the program using a computer-readable recording medium. In addition, the structure of data used in the above-described method may be recorded on a computer-readable recording medium through various means. The computer-readable recording medium includes a storage medium such as a magnetic storage medium (eg, ROM, RAM, USB, floppy disk, hard disk, etc.), optical read media (eg, CD-ROM, DVD, etc.). do.

Those of ordinary skill in the art related to the present embodiment will understand that it may be implemented in a modified form without departing from the essential characteristics of the above-described substrate. Therefore, the disclosed methods should be considered in terms of explanation, not limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent range should be interpreted as being included in the present invention.

Claims (11)

A heating portion including a tube-shaped base portion and an acupuncture portion formed at one end of the base portion;
A first sheet having an electrically conductive track formed on each of both sides and surrounding at least a portion of the outer circumferential surface of the base portion;
A second sheet surrounding at least a portion of the first sheet and having rigidity; And
A heater for heating an aerosol-forming substrate, comprising a coating layer for flattening a stepped surface formed by a lamination structure including the heating unit, the first sheet, and the second sheet. According to claim 1,
The coating layer comprises a heat-resistant composition, a heater for heating the aerosol-forming substrate. According to claim 1,
The coating layer includes a glass film coating layer, a Teflon coating layer, and at least one coating layer of the Dermolon coating layer, a heater for heating the aerosol-forming substrate. According to claim 1,
The plurality of electrically conductive tracks,
A first electrically conductive track formed on a first side of both cross-sections of the first sheet and having a resistance temperature coefficient characteristic used to sense the temperature of the heating portion, and
A heater for heating an aerosol-forming substrate, which is formed on a second surface of both ends of the first sheet and includes a second electrically conductive track configured to heat the heating unit as current flows therein. The method of claim 4,
A heater for heating an aerosol-forming substrate, among both cross-sections of the first sheet, wherein the first surface is one surface in contact with the heating part and the second surface is the other surface not in contact with the heating part. The method of claim 4,
A heater for heating an aerosol-forming substrate, among both cross-sections of the first sheet, wherein the second surface is one surface in contact with the heating part, and the first surface is the other surface not in contact with the heating part. In the heating system for heating the aerosol-forming substrate,
A heater inserted into the aerosol-forming substrate to heat the aerosol-forming substrate; And
A heating portion including a tube-shaped base portion and an acupuncture portion formed at one end of the base portion,
A first sheet having an electrically conductive track formed on each of both sides and surrounding at least a portion of the outer peripheral surface of the base portion,
A second sheet surrounding at least a portion of the first sheet and having rigidity, and
And a heater comprising a coating layer for flattening the stair surface formed by the lamination structure including the heating portion, the first sheet, and the second sheet. The method of claim 7,
The coating layer comprises a coating layer of at least one of a glass film coating layer, a Teflon coating layer, and a dermolon coating layer. The method of claim 7,
The plurality of electrically conductive tracks,
A first electrically conductive track formed on a first side of both cross-sections of the first sheet and having a resistance temperature coefficient characteristic used to sense the temperature of the heating portion, and
A second electrically conductive track formed on a second side of both cross-sections of the first sheet and configured to heat the heating section as current flows therein. The method of claim 9,
Among both cross-sections of the first sheet, the first surface is one surface in contact with the heating unit and the second surface is the other surface not in contact with the heating unit. The method of claim 9,
Among both cross-sections of the first sheet, the second surface is one surface in contact with the heating unit, and the first surface is the other surface not in contact with the heating unit.

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