KR20190010433A - A temperature correction method of an apparatus for generating aerosols - Google Patents

Abstract

The present invention relates to a temperature correction method of a heating-type aerosol generation apparatus which can diversify aerosols. Specifically, the temperature correction method of an aerosol generation apparatus comprises: a step of measuring a temperature of a heater to convert an analog signal outputted from a temperature sensor by an analog-digital converter (ADC) to output a digital signal; a step of measuring the temperature of the heater while the digital signal outputted by the analog-digital converter reaches a maximum value and then decreases, and measuring the digital signal value outputted from the analog-digital converter; a step of calculating the slope value which is a TCR characteristic as a correlation between the measured temperature of the heater and the digital signal value outputted by the analog-digital converter; a step of calculating an offset factor by using the slope value which is the TCR characteristic as the correlation between the measured temperature of the heater and the digital signal value outputted by the analog-digital converter; and a step of storing the slope value which is the TCR characteristic and the offset factor in a memory.

Description

[0001] The present invention relates to a temperature correction method for an aerosol generating apparatus,

Embodiments relate to a temperature correction method of a heating type aerosol generation apparatus, in which a temperature coefficient of resistance (TCR) characteristic as a correlation between a temperature value of a temperature sensor for sensing the temperature of a heater and a digital signal value of an analog- To a temperature correction method for an aerosol generating apparatus according to the present invention.

Inhalation of a particulate matter such as smoking, which is commonly referred to as inhalation of fine particles in the air, that is, aerosols, can be achieved. Conventionally, cigarette-shaped cigarettes were almost the only means of inhalation of such a substance, but recently, electronic cigarettes (hereinafter referred to as "aerosol generating apparatuses") have become another means. The aerosol generating device is completely different from the conventional cigarette-type cigarette which generates smoke by burning the inhaled material by vaporizing the inhaled material by applying heat or ultrasonic waves to the cartridge containing the inhaled substance in liquid form , It has the advantage of being able to prevent the advantages, in particular the occurrence of certain substances which may arise from combustion.

There has also been proposed a filter rod of a normal cigarette and an aerosol generating device having the shape of a tobacco rod in accordance with the demand of consumers who prefer tobacco-like conventional cigarettes, And has a configuration in which the user sucks the produced material through a filter rod having a configuration equivalent to a normal cigarette while vaporizing the heater. In such an aerosol generating apparatus, unlike conventional tobacco having a configuration of a tobacco rod filled with dry tobacco leaves, the aerosol producing material is filled with paper or sheet impregnated or buried on the surface. When the cigarette is inserted into the aerosol generating device and the heater inside the aerosol generating device is heated to vaporize the aerosol generating material inside the tobacco rod, the user can suck the aerosol vaporized through the filter rod. As with conventional aerosol generators, it has the advantage of not burning, and it can take in aerosols that have been vaporized through the filter rod with the same mechanism as when smoking a normal cigarette, so users feel the same as smoking a normal cigarette. .

1, when the user presses a button provided on the aerosol generating apparatus to use the aerosol generating apparatus, the user enters a preheating step of rapidly raising the temperature up to the point of change t, At the end of the preheating stage at point c, the temperature is lowered between the change point t and the change point t + 1 on the time axis up to the change point C + 2, The vaporization temperature is maintained at a fine slope from the change point (c + 2) to the change point (c + 1) to the change point (t + 2) And the temperature is rapidly lowered. In general operation of the above-described aerosol generating apparatus, power supplied during the start-up or warm-up operation is very high, so that power consumption of the battery of the aerosol generating apparatus tends to be excessive and excessive heat is generated. Also, after the preheating, the battery operates while maintaining the vaporization temperature at the maximum output of the battery with the power loss consumed in the preheat phase, so that the generated excess heat does not have enough time to dissipate, The temperature was high, and the battery power of the aerosol generating device tended to be rapidly consumed.

In addition, the general aerosol generating apparatus as described above may be configured such that a digital signal value obtained by converting an analog signal output from a temperature sensor by an analog-to-digital converter when an aerosol generating apparatus is used according to device characteristics or a heater of an aerosol generating apparatus, The temperature of the heater can not be appropriately controlled according to the digital signal value of the analog-to-digital converter according to the actual temperature since the deviation is different from the digital signal value of the analog-to-digital converter.

Various embodiments are directed to a method for temperature correction of an aerosol generating apparatus. The technical problem to be solved by the present invention is not limited to the above-mentioned technical problems, and other technical problems can be deduced from the following embodiments.

For example, embodiments are directed to providing a temperature correction method for an aerosol generating device that does not involve combustion and can vary the aerosol.

It is also an object of the present invention to provide a temperature correction method of an aerosol generating apparatus according to a TCR characteristic which appears as a correlation between a temperature of a heater and a digital signal value of an analog-digital converter.

As a means for solving the above technical problem, there is provided an apparatus for generating an aerosol so that an aerosol can be sucked by a suction operation of a user, comprising: a heater which generates heat by resistance when a current is applied; A temperature sensor for measuring the temperature of the heater; An analog-to-digital converter (ADC) for converting an analog signal output from the temperature sensor into a digital signal; A battery capable of instantly supplying a high electric power to the heater; And a control unit for controlling at least one of them, wherein the heater generates an aerosol by heating a vapor containing a substance (aerosol generating material) vaporized when heated to a predetermined temperature or higher. Particularly, the aerosol may be fine particles that can float in the air.

Further, according to some embodiments, the aerosol generating apparatus may include a memory and a pulse width modulator (PWM) processor.

According to another aspect of the present invention, there is provided a temperature correction method for an aerosol generation apparatus, comprising: measuring a temperature of a heater, converting an analog signal output from a temperature sensor by an analog- - measuring the temperature of the heater while the digital signal output from the digital converter reaches a maximum value and decreasing, and measuring a digital signal value output from the analog-to-digital converter; and comparing the measured temperature of the heater with the analog- Calculating a slope value as a TCR characteristic as a correlation between digital signal values output from the converter and a slope value as a TCR characteristic as a correlation between the measured temperature of the heater and a digital signal value output from the analog- Calculating an offset factor; and calculating the TCR It characterized in that it comprises a; storing adult slope value and an offset value in the memory.

According to still another aspect of the present invention, there is provided a temperature correction method for an aerosol generation apparatus, comprising: a temperature correction unit for correcting a digital signal value output from the analog-digital converter according to a slope value and an offset value, And adjusting the PWM signal to control the temperature.

The present disclosure can provide a temperature correction method for an aerosol generating apparatus. Specifically, the present disclosure can provide a temperature correction method for an aerosol generating apparatus in which combustion is not accompanied and no specific substance is generated.

In addition, the present disclosure can provide a temperature correction method of an aerosol generating apparatus capable of correcting a temperature according to an offset value according to a TCR characteristic, which is expressed as a correlation between a temperature of a heater and a digital signal value of an analog-digital converter.

1 is a schematic diagram showing temperature control characteristics of a general aerosol generating apparatus.
2 to 4 are views showing examples in which a cigarette is inserted into the aerosol generating apparatus.
5 is a view showing an example of a cigarette.
6 is a view showing a configuration of an aerosol generating apparatus according to some embodiments.
7 is a schematic block diagram of an aerosol generating apparatus and a temperature measuring instrument according to some embodiments.
8 is a flowchart of a temperature correction method of an aerosol generating apparatus according to some embodiments.
9 is a diagram for explaining TCR characteristics as a correlation between the temperature of the aerosol generating apparatus according to some embodiments and the digital signal value of the analog-to-digital converter.

Although the terms used in the embodiments have been selected in consideration of the functions of the present invention, the present general terms are widely used. However, these may vary depending on the intention or circumstance of a person skilled in the art, the emergence of new technologies and the like. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Also, the terms "part ","? Module ", etc. in the specification mean a unit for processing at least one function or operation, which may be implemented by hardware or software or by a combination of hardware and software.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

2 to 4 are views showing examples in which a cigarette is inserted into the aerosol generating apparatus.

2, the aerosol generating apparatus 10000 includes a battery 11000, a control unit 12000, and a heater 13000. [ Referring to FIGS. 3 and 4, the aerosol generating apparatus 10000 further includes a vaporizer 14000. In addition, the cigarette 20000 can be inserted into the internal space of the aerosol generating apparatus 10000.

The components related to the present embodiment are shown in the aerosol generating apparatus 10000 shown in Figs. 2 to 4. Therefore, it will be understood by those skilled in the art that other general components other than the components shown in Figs. 2 to 4 may be further included in the aerosol generating apparatus 10000 .

3 and 4 illustrate that the apparatus 1300 includes the heater 13000, but the heater 13000 may be omitted if necessary.

2, a battery 11000, a controller 12000, and a heater 13000 are arranged in a line. 3, a battery 11000, a controller 12000, a vaporizer 14000, and a heater 13000 are arranged in a line. Also, in FIG. 4, the vaporizer 14000 and the heater 13000 are shown arranged in parallel. However, the internal structure of the aerosol generating apparatus 10000 is not limited to those shown in Figs. In other words, according to the design of the aerosol generating apparatus 10000, the arrangement of the battery 11000, the control unit 12000, the heater 13000, and the vaporizer 14000 can be changed.

When the cigarette 20000 is inserted into the aerosol generating apparatus 10000, the aerosol generating apparatus 10000 activates the heater 13000 and / or the vaporizer 14000 to supply the cigarette 20000 and / or the vaporizer 14000, The aerosol can be generated. The aerosol generated by the heater 13000 and / or the vaporizer 14000 passes through the cigarette 20000 and is delivered to the user.

If necessary, the aerosol generating apparatus 10000 can heat the heater 13000 even when the cigarette 20000 is not inserted into the aerosol generating apparatus 10000.

The battery 11000 supplies power used for the aerosol generating apparatus 10000 to operate. For example, the battery 11000 can supply power so that the heater 13000 or the vaporizer 14000 can be heated, and can supply the power required for the controller 12000 to operate. In addition, the battery 11000 can supply power required for operation of a display, a sensor, a motor, and the like installed in the aerosol generating apparatus 10000.

The control unit 12000 controls the operation of the aerosol generating apparatus 10000 as a whole. Specifically, the control unit 12000 controls the operation of not only the battery 11000, the heater 13000, and the vaporizer 14000, but also other components included in the aerosol generating apparatus 10000. The controller 12000 may also check the status of each of the configurations of the aerosol generator 10000 to determine whether the aerosol generator 10000 is in an operable state.

The control unit 12000 includes at least one processor. A processor may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general purpose microprocessor and a memory in which a program executable in the microprocessor is stored. It will be appreciated by those skilled in the art that the present invention may be implemented in other forms of hardware.

The heater 13000 can be heated by the power supplied from the battery 11000. [ For example, when the cigarette is inserted into the aerosol generating apparatus 10000, the heater 13000 may be located outside the cigarette. Thus, the heated heater 13000 can raise the temperature of the aerosol generating material in the cigarette.

The heater 13000 may be an electrically resistive heater. For example, the heater 13000 includes an electrically conductive track, and the heater 13000 can be heated as current flows through the electrically conductive track. However, the heater 13000 is not limited to the above-described example, and may be applied without limitation as long as it can be heated to a desired temperature. Here, the desired temperature may be preset in the aerosol generating apparatus 10000, or may be set to a desired temperature by the user.

On the other hand, as another example, the heater 13000 may be an induction heating type heater. Specifically, the heater 13000 may include an electrically conductive coil for heating the cigarette by an induction heating method, and the cigarette may include a susceptor that can be heated by an induction heating heater.

For example, the heater 13000 may include a tubular heating element, a plate-like heating element, a sinking heating element, or a rod-shaped heating element, and may be disposed inside or outside the cigarette 20000 It can be heated.

In addition, a plurality of heaters 13000 may be disposed in the aerosol generating apparatus 10000. At this time, the plurality of heaters 13000 may be disposed inside the cigarette 20000, or may be disposed outside the cigarette 20000. In addition, some of the plurality of heaters 13000 may be arranged to be inserted into the cigarette 20000, and the rest may be disposed outside the cigarette 20000. Further, the shape of the heater 13000 is not limited to the shapes shown in Figs. 2 to 4, and can be formed into various shapes.

The vaporizer 14000 can heat the liquid composition to produce an aerosol, and the generated aerosol can be passed through the cigarette 20000 to the user. In other words, the aerosol generated by the vaporizer 14000 can move along the airflow passageway of the aerosol generating apparatus 10000, and the airflow passageway allows the aerosol generated by the vaporizer 14000 to pass through the cigarette to the user Lt; / RTI >

For example, the vaporizer 14000 may include, but is not limited to, a liquid reservoir, a liquid delivery means, and a heating element. For example, the liquid reservoir, the liquid delivery means, and the heating element may be included in the aerosol generation apparatus 10000 as an independent module.

The liquid reservoir can store the liquid composition. For example, the liquid composition may be a liquid comprising a tobacco-containing material comprising a volatile tobacco flavor component, or may be a liquid comprising a non-tobacco substance. The liquid reservoir may be fabricated to be removable from the vaporizer 14000 or may be fabricated integrally with the vaporizer 14000.

For example, the liquid composition may comprise water, solvent, ethanol, plant extract, flavoring, flavoring, or a mixture of vitamins. The fragrance may include, but is not limited to, menthol, peppermint, spearmint oil, various fruit flavors, and the like. Flavoring agents may include ingredients that can provide a variety of flavors or flavors to the user. The vitamin mixture may be a mixture of at least one of vitamin A, vitamin B, vitamin C and vitamin E, but is not limited thereto. In addition, the liquid composition may comprise an aerosol forming agent such as glycerin and propylene glycol.

The liquid delivery means may deliver the liquid composition of the liquid reservoir to the heating element. For example, the liquid delivery means can be, but is not limited to, wick such as cotton fibers, ceramic fibers, glass fibers, porous ceramics.

The heating element is an element for heating the liquid composition delivered by the liquid delivery means. For example, the heating element may be, but is not limited to, metallic hot wire, metal hot plate, ceramic heater, and the like. Further, the heating element may be composed of a conductive filament, such as a nichrome wire, and may be disposed in a structure wound on the liquid transfer means. The heating element can be heated by current supply and can transfer heat to the liquid composition in contact with the heating element to heat the liquid composition. As a result, aerosols can be generated.

For example, vaporizer 14000 may be referred to as, but not limited to, a cartomizer or an atomizer.

Meanwhile, the aerosol generating apparatus 10000 may further include general configurations other than the battery 11000, the control unit 12000, the heater 13000, and the vaporizer 14000. For example, the aerosol generating apparatus 10000 may include a motor for outputting display and / or haptic information capable of outputting visual information. In addition, the aerosol generating apparatus 10000 may include at least one sensor (a puff detection sensor, a temperature detection sensor, a cigarette insertion detection sensor, and the like). In addition, the aerosol generating apparatus 10000 can be constructed in such a structure that external air can flow into the cigarette 20000 even when the cigarette 20000 is inserted, or the internal gas can flow out.

Although not shown in FIGS. 2 to 4, the aerosol generating apparatus 10000 may form a system together with a separate cradle. For example, the cradle may be used to charge the battery 11000 of the aerosol generating apparatus 10000. Alternatively, the heater 13000 may be heated while the cradle and the aerosol generating apparatus 10000 are coupled.

The cigarette 20000 may be similar to a general soft cigarette. For example, the cigarette 20000 can be divided into a first portion including an aerosol generating material and a second portion including a filter and the like. Alternatively, the second portion of the cigarette 20000 may also contain an aerosol generating material. For example, an aerosol product made in the form of granules or capsules may be inserted into the second part.

The entire first part can be inserted into the inside of the aerosol generating apparatus 10000, and the second part can be exposed to the outside. Alternatively, only part of the first part may be inserted into the inside of the aerosol generating apparatus 10000, and part of the entire first part and part of the second part may be inserted. The user can inhale the aerosol from the mouth portion of the second portion. At this time, the aerosol is generated by passing the outside air through the first portion, and the generated aerosol passes through the second portion to the user's mouth.

As an example, the outside air may be introduced through at least one air passage formed in the aerosol generating apparatus 10000. For example, the opening and closing of the air passage formed in the aerosol generating apparatus 10000 and / or the size of the air passage may be controlled by the user. Accordingly, the amount of smoke, the sense of smell, and the like can be controlled by the user. As another example, the outside air may be introduced into the interior of the cigarette 20000 through at least one hole formed in the surface of the cigarette 20000.

Hereinafter, an example of the cigarette 20000 will be described with reference to Fig.

5 is a view showing an example of a cigarette.

Referring to Fig. 5, the cigarette 20000 includes a cigarette rod 21000 and a filter rod 22000. Fig. The first portion described above with reference to Figures 2-4 includes the tobacco rod 21000 and the second portion includes the filter rod 22000. [

Although filter rod 22000 is shown in Fig. 5 as a single segment, it is not limited thereto. In other words, the filter load 22000 may be composed of a plurality of segments. For example, the filter rod 22000 may include a first segment that cools the aerosol and a second segment that filters certain components contained in the aerosol. In addition, if desired, the filter rod 22000 may further include at least one segment that performs other functions.

The cigarette 20000 may be packaged by at least one wrapper 24000. The wrapper 24000 may be formed with at least one hole through which the outside air flows or the inside gas flows out. As an example, the cigarette 20000 may be packaged by one wrapper 24000. As another example, the cigarette 20000 may be overlaid by two or more wrappers 24000. For example, the tobacco rod 21000 may be packaged by a first wrapper, and the filter rod 22000 may be packaged by a second wrapper. Then, the tobacco rod 21000 and the filter rod 22000 packaged by individual wrappers are combined, and the entire cigarette 20000 can be repackaged by the third wrapper. If each of the tobacco rod 21000 or the filter rod 22000 is composed of a plurality of segments, each segment can be packaged by a separate wrapper. The entire cigarette 20000 to which the segments wrapped by the individual wrappers are coupled can be repackaged by another wrapper.

The tobacco rod 21000 includes an aerosol generating material. For example, the aerosol producing material may include, but is not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. In addition, the tobacco rod 21000 may contain other additives such as flavorings, wetting agents and / or organic acids. In addition, the tobacco rod 21000 can be added to the tobacco rod 21000 by spraying a tobacco rod 21000 with a remover such as menthol or a moisturizer.

The tobacco rod 21000 can be manufactured in various ways. For example, the tobacco rod 21000 may be made of a sheet or a strand. In addition, the tobacco rod 21000 may be made of each chopped tobacco sheet. In addition, the tobacco rod 21000 may be surrounded by a thermal conductive material. For example, the thermal conductive material may be, but is not limited to, a metal foil such as an aluminum foil. For example, the thermally conductive material surrounding the tobacco rod 21000 can evenly disperse the heat transferred to the tobacco rod 21000 to improve the thermal conductivity applied to the tobacco rod, thereby improving the taste of the cigarette . In addition, the heat conducting material surrounding the tobacco rod 21000 may serve as a susceptor heated by the induction heating heater. At this time, although not shown in the drawing, the tobacco rod 21000 may further include an additional susceptor in addition to the outer heat conductive material.

The filter rod 22000 may be a cellulose acetate filter. On the other hand, the shape of the filter rod 22000 is not limited. For example, the filter rod 22000 may be a cylindrical rod or a tubular rod including a hollow therein. The filter rod 22000 may also be a recessed type rod. If the filter rod 22000 is composed of a plurality of segments, at least one of the plurality of segments may be fabricated in a different shape.

The filter rod 22000 may be made to produce flavor. As an example, a reflux liquid may be injected into the filter rod 22000, and a separate fiber coated with the reflux liquid may be inserted into the interior of the filter rod 22000.

Also, at least one capsule 23000 may be included in the filter rod 22000. Here, the capsule 23000 may perform a function of generating a flavor or may function to generate an aerosol. For example, the capsule 23000 may be a structure in which a liquid containing a perfume is wrapped in a film. Capsule 23000 may have a spherical or cylindrical shape, but is not limited thereto.

If the filter rod 22000 includes a segment that cools the aerosol, the cooling segment may be made of a polymeric material or a biodegradable polymeric material. For example, the cooling segment may be made of pure polylactic acid alone, but is not limited thereto. Alternatively, the cooling segment may be made of a cellulose acetate filter having a plurality of holes. However, the cooling segment is not limited to the above-described example, and can be applied without restriction if it can perform the function of cooling the aerosol.

Meanwhile, although not shown in FIG. 5, the cigarette 20000 according to an embodiment may further include a front end filter. The pre-stage filter is located on the side of the tobacco rod 21000 opposite to the filter rod 22000. The shear filter can prevent the tobacco rod 21000 from escaping to the outside and prevent the aerosol liquefied from the tobacco rod 21000 from flowing into the aerosol generating apparatus (10000 of Figs. 2 to 4) during smoking have.

6 is a view showing a configuration of an aerosol generating apparatus according to some embodiments.

6, the aerosol generating apparatus 10000 includes a button (not shown) that can be pressed to preheat the aerosol generating apparatus 10000, a heater 13000 that generates heat by resistance when a current is applied thereto, 13000) and a controller 12000 for controlling the heater 13000. The controller 11000 controls the temperature of the battery 11000 and the temperature of the heater 11000, The heater 13000 generates an aerosol by heating a vapor containing a substance (aerosol generating material) that vaporizes when heated to a certain temperature or higher, which is contained in the cartridge 610. For example, when a cigarette filled with paper or a sheet impregnated with an aerosol-generating material or buried on a surface is inserted into the cartridge 610, the heater 13000 is heated to vaporize the aerosol-generating material inside the tobacco rod, It is possible to inhale the aerosol that is vaporized through the exhaust gas.

The controller 12000 controls the motor 750 in a case where the operation of the aerosol generator 10000 is impossible due to a power shortage due to the heater 13000 and charging is required or when the aerosol generator 10000 is ready for operation. So that the aerosol generating apparatus 10000 vibrates and can be recognized by the user.

The controller 12000 displays the remaining power of the battery 11000 through a separate display unit provided in the aerosol generating apparatus 10000. When the heater 13000 has insufficient power, It is possible to display the state through the display means. The aerosol generating apparatus 10000 is capable of data communication with an external power supply apparatus through a charging terminal (not shown) and can be supplied with power. When the aerosol generating apparatus 10000 is supplied with electric power, 12000 may display the power supplied to the battery 11000 through the display means. The battery 11000 is detachable from the aerosol generating apparatus 10000, and it is possible to replace the battery 11000 with the exhausted power. In addition, according to some embodiments, the aerosol generating apparatus 10000 may include power generating means for converting external energy such as light energy or mechanical energy into electric energy, thereby generating electric power to charge the battery 11000 .

FIG. 7 is a schematic block diagram of an aerosol generating device and a temperature measuring device according to some embodiments, and FIG. 8 is a flowchart of a temperature correction method of an aerosol generating device according to some embodiments.

7 and 8, the aerosol generating apparatus 10000 includes an aerosol generating apparatus for generating an aerosol so that the aerosol can be sucked by the user's inhalation action, 13000); A temperature sensor 730 for measuring the temperature of the heater 13000; A battery 11000 capable of instantaneously supplying a high electric power to the heater 13000; And a control unit 12000 for controlling at least one or more of them. The heater 13000 generates an aerosol by heating a cigarette or a fire containing a substance (vaporizing material) that vaporizes when heated to a predetermined temperature or higher, and the aerosol may be fine particles such that the aerosol can float in the air.

The temperature sensor 730 senses the temperature of the heater 13000 in real time and outputs an analog signal. The analog signal is converted into a digital signal by the analog-digital converter 720 and output. According to the present disclosure, the temperature of the heater 13000 is measured in a separate temperature measuring instrument 740, such as a thermostat, and is connected to the controller 12000 of the aerosol generating apparatus 10000, To the control unit 12000.

For example, when a cigarette containing a substance (vaporizing material) that vaporizes when heated to a predetermined temperature or more is inserted into the aerosol generating apparatus 10000 and starts to suck it, the controller 12000 heats the heater 13000, The analog-to-digital converter 720 converts the analog signal into a digital signal and outputs a digital signal value by measuring the temperature of the heater 13000 and transmitting the analog signal to the analog-digital converter 720 do. The controller 12000 controls the temperature of the heater 13000 through the temperature measuring device 740 while controlling the digital signal value to decrease in a stepwise manner after the digital signal value reaches a preset maximum value And reads the digital signal value output from the analog-to-digital converter 720. The controller 12000 calculates a tilt value as a temperature coefficient of resistance (TCR) characteristic between the temperature of the heater 13000 measured from the temperature measuring instrument 740 and the digital signal value output from the analog-digital converter 720 do.

9 is a diagram for explaining TCR characteristics as a correlation between the temperature of the aerosol generating apparatus according to some embodiments and the digital signal value of the analog-to-digital converter.

9, the TCR characteristic is a slope value of a line segment indicating a correlation between a temperature value measured through the temperature measuring device 740 and a digital signal value output from the analog-digital converter 720. In the present disclosure, And is used to correct the digital signal value output from the analog-to-digital converter 720 at the actual temperature. The TCR characteristics may vary depending on the heater 13000, and may vary depending on the heater 13000 used, for example, as shown in FIG. In one embodiment of the present disclosure, the temperature of the heater 13000 is calculated at a slope value of a line segment indicating a correlation with the digital signal value of the analog-to-digital converter 720 in a section between 400 ° C and 300 ° C. The controller 12000 calculates an offset factor to correct the digital signal value of the analog-to-digital converter 720 according to Equation (1).

The control unit 12000 stores the slope value and the offset value, which are the TCR characteristics calculated as described above, in the memory (Flash area) 760 of the control unit 12000. The controller 12000 controls the PWM signal output from the pulse width modulator processing unit 710 according to the digital signal value output from the analog-to-digital converter 720 and controls the amount of power supplied to the heater 13000 According to the present disclosure, when the user uses the aerosol generating apparatus 10000, the controller 12000 controls the temperature of the heater 13000 according to the TCR characteristic previously stored in the memory 760 And controls the temperature by adjusting the PWM signal output from the pulse width modulator processing unit 710 by correcting the digital signal value output to the analog-to-digital converter 720 according to the slope value and the offset value.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed methods should be considered from an illustrative point of view, not from a restrictive point of view. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (2)

A method for correcting temperature of an aerosol generating apparatus,
Measuring the temperature of the heater, converting an analog signal output from the temperature sensor by an analog-to-digital converter (ADC) and outputting the digital signal;
Measuring the temperature of the heater while the digital signal output from the analog-to-digital converter (ADC) is decreasing after reaching the maximum value, and measuring the digital signal value output from the analog-to-digital converter
Calculating a slope value which is a TCR characteristic between the measured temperature of the heater and a digital signal value outputted from the analog-digital converter;
Calculating an offset factor using a slope value which is a TCR characteristic between the measured temperature of the heater and a digital signal value output from the analog-digital converter; and
And storing the TCR characteristic slope value and the offset value in a memory. The method according to claim 1,
The method comprises:
The digital signal value output from the analog-to-digital converter is corrected according to the slope value and the offset value, which are TCR characteristics stored in the memory, and the PWM signal output from the pulse width modulator (PWM) The method of claim 1, further comprising:

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