CN117859967A - Heating smoking set and temperature control method thereof - Google Patents
Heating smoking set and temperature control method thereof Download PDFInfo
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- CN117859967A CN117859967A CN202410006928.4A CN202410006928A CN117859967A CN 117859967 A CN117859967 A CN 117859967A CN 202410006928 A CN202410006928 A CN 202410006928A CN 117859967 A CN117859967 A CN 117859967A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 383
- 230000000391 smoking effect Effects 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims description 30
- 230000008859 change Effects 0.000 claims description 9
- 239000000443 aerosol Substances 0.000 abstract description 16
- 230000001276 controlling effect Effects 0.000 description 19
- 238000011217 control strategy Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000036760 body temperature Effects 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The application relates to a heating smoking set and a temperature control method thereof. The heating smoking set comprises a heating body, wherein the heating body is used for heating the aerosol-generating substrate; the method comprises the following steps: acquiring current temperature data of a heating element; the heating element temperature data comprise one of the heating element temperature measured by contact and the heating element temperature calculated by the electric parameter of the heating element; according to the current temperature data of the heating element and the preset target temperature, controlling the heating element to start heating or stop heating; the preset target temperature is the temperature data of the heating element, which is determined according to the temperature data of the heating element and changes along with time; wherein, the temperature measurement data of the heating element is the temperature of the heating element measured by non-contact; according to the method and the device, the heating element can be prevented from continuously heating due to the fact that the temperature data of the heating element is lagged behind the temperature of the actually reached aerosol generating substrate which is suitable for heating, so that the problem that the temperature of the heating element overshoots is effectively solved.
Description
Technical Field
The present disclosure relates to heating smoking articles, and more particularly to a heating smoking article and a temperature control method thereof.
Background
At present, a low-temperature heating smoking set generally uses a heating element to heat an aerosol-generating substrate, so that the aerosol-generating substrate is heated to a certain temperature which is less than the ignition point, and the purposes of not burning and releasing smoke are achieved. However, due to the influences of factors such as a structure and temperature feedback, the actual heating temperature of the heating element tends to be continuously increased for a short time after reaching the set temperature, and the problem of temperature overshoot occurs.
Disclosure of Invention
In view of the above, it is desirable to provide a heating smoking set and a temperature control method thereof that can avoid the problem of temperature overshoot.
In a first aspect, the present application provides a method of temperature control of a heating smoking article comprising a heating element for heating an aerosol-generating substrate; the method comprises the following steps:
acquiring current temperature data of a heating element; the heating element temperature data comprise one of the heating element temperature measured by contact and the heating element temperature calculated by the electric parameter of the heating element;
according to the current temperature data of the heating element and the preset target temperature, controlling the heating element to start heating or stop heating; the preset target temperature is the temperature data of the heating element, which is determined according to the temperature data of the heating element and changes along with time; wherein, the temperature measurement data of the heating element is the temperature of the heating element measured by non-contact.
In one embodiment, the preset target temperature includes a first target temperature and a second target temperature; the temperature measurement data of the heating element comprise target measurement temperature; wherein the target measured temperature is greater than or equal to the second target temperature, and the second target temperature is greater than the first target temperature;
the method further comprises the steps of:
acquiring a first moment when the heating element reaches a target measurement temperature for the first time, and taking heating element temperature data corresponding to the first moment as a first target temperature;
acquiring a second moment when the heating element is stabilized at the target measurement temperature, and taking heating element temperature data corresponding to the second moment as a second target temperature;
determining a preset target temperature as a first target temperature in a time period from a heating starting time to a second time of the heating smoking set;
and determining the preset target temperature as a second target temperature in a time period after the second moment.
In one embodiment, the method further comprises:
determining a preset target temperature as a first target temperature in a period from a heating starting time to a first time of the heating smoking set;
determining a preset target temperature according to a function relation of the temperature of the heating element along with the time change in a time period from the first moment to the second moment;
the function relation of the temperature of the heating element with time is expressed by the following formula:
T=Tf1+K*（tn-t1）
K=[（Tf2-Tf1）/（t2-t1）]
t2＞tn＞t1
wherein T represents a preset target temperature, tf1 represents a first target temperature, tf2 represents a second target temperature, T2 represents a second time, T1 represents a first time, and tn represents any time in a period between the first time and the second time.
In one embodiment, controlling the heating element to start heating or stop heating according to the current heating element temperature data and the preset target temperature includes:
if the current temperature data of the heating element is smaller than the preset target temperature, controlling the heating element to start heating;
and if the current temperature data of the heating element is greater than the preset target temperature, controlling the heating element to stop heating.
In one embodiment, the electrical parameter includes voltage and current across the heater;
the heating element temperature obtained by calculation of the electric parameters of the heating element comprises:
obtaining the resistance of the heating element according to the voltage and the current at the two ends of the heating element;
and comparing the resistance value of the heating element with the resistance temperature coefficient TCR of the heating element to obtain the temperature of the heating element.
In one embodiment, the first target temperature includes any one of temperatures lower than a temperature value of the target temperature, and the first time includes a time corresponding to any one of temperatures.
In one embodiment, the method further comprises:
the second moment when the heating element is stabilized at the target measurement temperature is the moment when the temperature measurement data of the heating element reaches the second target temperature for the second time or any time thereafter.
In one embodiment, the method further comprises: :
the third moment and the corresponding third target temperature are set, and the third moment is in a time period from the first moment to the second moment; the third target temperature is greater than the first target temperature and less than the second target temperature.
In a second aspect, the present application also provides a heating smoking article comprising a heating element for heating an aerosol-generating substrate; the heating smoking set further comprises a controller, wherein the controller is used for controlling the heating body to start heating or stop heating; wherein:
the controller is adapted to perform the steps of the method described above.
In one embodiment, the heating smoking set further comprises a temperature measuring element for measuring the temperature of the heating element through contact or a temperature measuring circuit for acquiring the electrical parameter of the heating element; the temperature measuring element or the temperature measuring circuit is connected with the controller;
the temperature measuring element comprises a thermocouple; the temperature measuring element is arranged in or on the surface of the heating element; the temperature measuring element comprises a thermocouple; the temperature measuring element is arranged in or on the surface of the heating element.
According to the heating smoking set and the temperature control method thereof, the heating element temperature data used for controlling the heating element to generate heat is obtained through the contact measurement or the heating element temperature calculated by the electric parameters of the heating element, and the heating element temperature measurement data actually received by the aerosol generating substrate in the heating process of the heating element is also obtained through an external non-contact measuring instrument; according to the heating element temperature data processing method and device, heating element temperature data used when heating element heating is controlled can be handled, compared with the situation that the heating element temperature measurement data obtained through measurement of an external measuring instrument has certain hysteresis, when the temperature value in the heating element temperature measurement data reaches the temperature value of a proper heating aerosol generating substrate, heating element heating is controlled by taking the heating element temperature data corresponding to the same time as the target temperature of the heating element, and further heating element continuous heating caused by the fact that the heating element temperature data lags the temperature of the proper heating aerosol generating substrate which is actually reached is avoided, so that the temperature overshoot problem is effectively avoided while the heating rate is not reduced.
Drawings
FIG. 1 is a graph showing a trend of temperature change of a heating element in one embodiment;
FIG. 2 is a flow chart of a first control method of a heating smoking article in one embodiment;
FIG. 3 is a flow chart of a second control method of a heating smoking article in one embodiment;
FIG. 4 is a flow chart of a third control method of a heating smoking article in one embodiment;
FIG. 5 is a flow chart of a fourth control method of a heating smoking article in one embodiment;
FIG. 6 is a flow chart of a fifth method of controlling a heating smoking article in one embodiment;
FIG. 7 is a graph showing a trend of temperature change of a heating element corresponding to a control strategy 1 of a heating smoking set in one embodiment;
fig. 8 is a schematic structural view of a heating smoking set device in one embodiment.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless explicitly stated or limited otherwise, the terms "initial," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.
A low temperature heating smoking article, also known as a heated non-combustible smoking article, typically heats an aerosol-generating substrate by positioning a heater in the center of a cavity containing the aerosol-generating substrate; in the use process, the aerosol generating substrate is placed in the cavity and the heating body is heated, so that the aerosol generating substrate can generate smoke due to the heat of the heating body; the way of heating the aerosol-generating substrate without direct ignition can effectively reduce the release of toxic substances such as tar, carbon monoxide and the like in the aerosol-generating substrate, and is more beneficial to the health of smokers, so that low-temperature heating cigarettes are becoming more popular in smoking groups at present.
The aerosol-generating substrate described above may be a finished cigarette, tobacco, and other types of products capable of generating an aerosol with or without nicotine.
The temperature control method of the heating smoking set provided by the embodiment of the application can be applied to an application environment of the heating smoking set shown in fig. 1. The heating smoking set comprises a heating body, wherein the heating body is used for heating the aerosol-generating substrate; in the actual heating process of the heating smoking set, the temperature of the heating element obtained by the control device for controlling the heating element to heat is delayed from the temperature actually reached by the heating element due to the influences of the heating element structure, temperature feedback and other factors, so that when the heating element actually reaches the target measurement temperature T1 suitable for generating smoke by the aerosol generating substrate, the control device still controls the heating element to heat continuously, and the temperature is raised to the overshoot temperature T2 at the time T2, thereby influencing the taste of a user, enabling the aerosol generating substrate to release more harmful substances and influencing the health of a human body; further, also due to the influence of factors such as the heating element structure and temperature feedback, after the overshoot temperature is generated, the heating element temperature starts to fall back and falls back to the target measurement temperature T1 again at time T2.
The heating smoking article may be a heating non-combustion smoking article, for example.
In one embodiment, as shown in fig. 2, a method of controlling the temperature of a heating smoking article may include:
step 102: acquiring current temperature data of a heating element; the heating element temperature data includes one of a heating element temperature measured by contact and a heating element temperature calculated by an electric parameter of the heating element.
Specifically, the current heat-generating body temperature data may be data applied for controlling the heat-generating body temperature increase.
Further, the temperature data of the heating element can be obtained by arranging a sensor inside, or can be obtained by calculating electric parameters including voltage and current.
Step 104: according to the current heating element temperature data and a preset target temperature, controlling the heating element to start heating or stop heating; the preset target temperature is heating element temperature data which is determined according to heating element temperature measurement data and changes with time; wherein, the heating element temperature measurement data is the heating element temperature measured by non-contact.
Specifically, the heating element temperature data used when the heating element is controlled to generate heat is obtained through the heating element temperature calculated by contact measurement or the electric parameter of the heating element; obtaining the temperature measurement data of the heating element actually received by the aerosol generating substrate in the heating process by an external non-contact measuring instrument; in view of the fact that the temperature data of the heating element at the same moment has certain hysteresis compared with the temperature data of the heating element actually received by the aerosol generating substrate, in the testing stage, the embodiment of the application proposes to obtain the temperature data of the heating element, measured by an external measuring instrument, of the moment when the aerosol generating substrate generates smoke, the corresponding temperature data of the heating element calculated by contact measurement or the electric parameters of the heating element, and in the implementation stage, the temperature of the heating element is controlled as the target temperature of the heating element, so that the heating element is not heated continuously due to the fact that the temperature data of the heating element used in the heating element heating control lags the temperature of the actually arrived aerosol generating substrate, and the problem of temperature overshoot is effectively avoided.
On the other hand, the temperature is regulated and controlled, and the temperature of the heating element is set to be higher than the preset target temperature, so that the heating element temperature can reach the target temperature at the same time of setting the preset target temperature, the heating rate of the heating element is not influenced, and the effect of avoiding temperature overshoot while the heating rate of the heating element is not reduced is realized.
In one embodiment, the preset target temperature includes a first target temperature Tf1 and a second target temperature Tf2; the temperature measurement data of the heating element comprises a target measurement temperature T1; wherein the target measured temperature T1 is greater than or equal to the second target temperature Tf2, and the second target temperature Tf2 is greater than the first target temperature Tf1.
As shown in fig. 3, the temperature control method of the heating smoking set further includes:
step 202: the method comprises the steps of obtaining a first time T1 when a heating body reaches a target measurement temperature T1 for the first time, and taking heating body temperature data corresponding to the first time T1 as a first target temperature Tf1.
Specifically, the first target temperature Tf1 is a heat-generating body temperature calculated by contact measurement or an electrical parameter of the heat-generating body corresponding to the target measurement temperature T1 measured by the external measuring instrument at the time T1 of the test stage.
Step 204: acquiring a second moment T2 when the heating element is stabilized at the target measurement temperature T1, and taking heating element temperature data corresponding to the second moment T2 as a second target temperature Tf2;
specifically, due to the characteristic that the temperature of the heating element falls back again after the heating element is heated and the characteristic that the temperature data of the heating element lags behind the temperature measurement data of the heating element, when an external instrument detects that the temperature of the heating element falls back to a target measurement temperature T1 (a second time T2), the temperature of the heating element calculated by contact measurement or an electric parameter of the heating element falls back to a second target temperature Tf2; therefore, the temperature of the heating element by the contact measurement or the electric parameter calculation of the heating element is acquired as the second target temperature Tf2 at the temperature falling stage of the test process.
Step 206: determining a preset target temperature as a first target temperature Tf1 in a period from a heating starting time of the heating smoking set to a second time t 2;
specifically, after the heating element temperature data is set to the first target temperature Tf1, in the temperature rising stage of the implementation process, namely in the time period from the starting heating time of the heating smoking set to the second time T2, the heating element is controlled to rise at the first target temperature Tf1, and when the heating element temperature calculated by the contact measurement or the electric parameter of the heating element rises to Tf1, the heating element temperature received by the aerosol generating substrate just rises to the target measurement temperature T1, so that the problem that the heating element temperature data generated in the heating element temperature rising process lags behind the heating element temperature measurement data is solved.
Step 208: in a period of time after the second time t2, the preset target temperature is determined as a second target temperature Tf2.
Specifically, in the temperature falling stage in the implementation process, that is, in the time period after the second time T2, the heating element temperature data corresponding to the second time T2 is used as the second target temperature Tf2, so that the falling of the heating element temperature can be effectively avoided, and the heating element temperature received by the aerosol generating substrate is continuously stabilized at the target measurement temperature T1.
In one embodiment, as shown in fig. 4, the temperature control method of the heating smoking set further comprises:
step 302: and determining the preset target temperature as the first target temperature in the period from the starting heating time of the heating smoking set to the first time.
Step 304: determining a preset target temperature according to a function relation of the temperature of the heating element along with the time change in a time period from the first moment to the second moment;
the function relation of the temperature of the heating element with time is expressed by the following formula:
T=Tf1+K*（tn-t1）
K=[（Tf2-Tf1）/（t2-t1）]
t2＞tn＞t1
wherein T represents a preset target temperature, tf1 represents a first target temperature, tf2 represents a second target temperature, T2 represents a second time, T1 represents a first time, and tn represents any time in a period between the first time and the second time.
Specifically, a dynamic relationship of the target temperature changing along with time in a time period between the first time T1 and the second time T2 can be determined through the above formula, the temperature can be controlled more accurately between the first time T1 and the second time T2 according to the dynamic relationship, and the falling process after the target temperature rises to the time T1 can be controlled until the temperature is regulated and controlled again through Tf2 after the time T2.
In one embodiment, as shown in fig. 5, controlling the heating element to start heating or stop heating according to the current heating element temperature data and the preset target temperature includes:
step 402: and if the current temperature data of the heating element is smaller than the preset target temperature, controlling the heating element to start heating.
Specifically, when the current temperature data of the heating element is smaller than the preset target temperature, the heating element is heated, and the temperature is in a temperature rising stage.
Step 404: and if the current temperature data of the heating element is greater than the preset target temperature, controlling the heating element to stop heating.
Specifically, when the current temperature data of the heating element is larger than the preset target temperature, the heating element stops heating, and the heating element is in a temperature reduction stage.
In one embodiment, as shown in FIG. 6, the electrical parameters include voltage and current across the heater; the heating element temperature obtained by calculation of the electric parameters of the heating element comprises:
step 502: and obtaining the resistance of the heating element according to the voltage and the current at the two ends of the heating element.
Step 504: and comparing the resistance value of the heating element with a TCR (temperature coefficient of resistivity, temperature coefficient of resistance) curve or a comparison table of the heating element to obtain the temperature of the heating element.
Specifically, the temperature coefficient of resistance TCR can be obtained by a temperature coefficient of resistance curve/table of the heating element in a conventional manner.
In one embodiment, the first target temperature may be set to any one of temperatures lower than the temperature value of the target temperature, and the first time is set to a time corresponding to any one of temperatures.
In one embodiment, the second time includes a time when the heat-generating body temperature measurement data reaches the second target temperature at the second time or any one of thereafter.
In one embodiment, the method of controlling the temperature of the heating smoking article may further comprise:
the third moment and the corresponding third target temperature are set, and the third moment is included in a time period from the first moment to the second moment; the third target temperature is greater than the first target temperature and less than the second target temperature.
In one example, to further illustrate aspects of the present application, described below in connection with one particular example, a method of controlling the temperature of a heating smoking article may include the following control strategies:
using an external temperature measuring instrument, measuring the moment T1 when the actual temperature of a heating element reaches the T1 temperature for the first time (a target measuring temperature T1 suitable for generating smoke by aerosol generating substrates), recording the temperature Tf1 fed back by a temperature detecting part at the moment T1 (the first moment T1 when the heating element reaches the target measuring temperature T1 for the first time is obtained, the heating element temperature data corresponding to the first moment T1 is taken as the first target temperature Tf 1), starting to stabilize at the moment T2 (when the external instrument detects that the heating element temperature falls back to the target measuring temperature T1 (the second moment T2), the heating element temperature calculated by the electric parameters of the contact measurement or the heating element falls back to the second target temperature Tf 2), and recording the temperature Tf2 fed back by a temperature detecting calculating part at the moment T2, wherein T1 is more than or equal to Tf2 > Tf1.
Control strategy 1:
1) Time 0 to t2 (temperature rising phase), the target temperature of the controller is set to Tf1;
2) From time t2 to the time thereafter, the target temperature setting of the controller switches to Tf2.
As shown in fig. 7, the control strategy 1 can suppress the overshoot, but the temperature will show a tendency to slip down (indicated by the broken line (1) in fig. 7) or to be stationary after slipping down (indicated by the broken line (2) in fig. 7) during the time t1 to t 2.
Control strategy 2:
1) From time 0 to t1, the target temperature of the controller is set to Tf1;
2) The target temperature of the controller is set to a function t=tf1+k (tn-T1) as a function of time T, (k= [ (Tf 2-Tf 1)/(T2-T1) ], T2 > tn > T1) from time T1 to T2;
3) From time t2 to the time thereafter, the target temperature setting of the controller switches to Tf2.
The control strategy 2 is a further optimization strategy of the control strategy 1, and the strategy can optimize the temperature sliding problem between the time t1 and the time t2, so that the problem that the temperature can show a smooth trend after sliding down or sliding down in the period from t1 to t2 in the control strategy 1 is solved.
Based on the same inventive concept, the embodiments of the present application further provide a temperature control device for a heating smoking set for implementing the above-mentioned temperature control method for a heating smoking set, where the implementation scheme of the solution provided by the device is similar to the implementation scheme described in the above-mentioned method, so specific limitations in the embodiments of the temperature control device for one or more heating smoking sets provided below may be referred to the above-mentioned limitations of the temperature control method for a heating smoking set, and the heating smoking set includes a heating element for heating the aerosol-generating substrate, which is not repeated herein; as shown in fig. 8, the apparatus includes:
a temperature data acquisition module 602, configured to acquire current temperature data of the heating element; the heating element temperature data comprise one of the heating element temperature measured by contact and the heating element temperature calculated by the electric parameter of the heating element;
the heating control module 604 is used for controlling the heating element to start heating or stop heating according to the current heating element temperature data and the preset target temperature; the preset target temperature is the temperature data of the heating element, which is determined according to the temperature data of the heating element and changes along with time; wherein, the temperature measurement data of the heating element is the temperature of the heating element measured by non-contact.
In one embodiment, the preset target temperature includes a first target temperature and a second target temperature; the temperature measurement data of the heating element comprise target measurement temperature; wherein the target measured temperature is greater than or equal to the second target temperature, and the second target temperature is greater than the first target temperature; the apparatus further comprises:
a first time acquisition module, configured to acquire a first time when the heating element first reaches the target measurement temperature, and take the heating element temperature data corresponding to the first time as the first target temperature
The second moment acquisition module is used for acquiring a second moment when the heating element is stabilized at the target measurement temperature, and taking the heating element temperature data corresponding to the second moment as a second target temperature;
the target temperature determining module is used for obtaining a second moment when the heating element is stabilized at the target measurement temperature, and taking heating element temperature data corresponding to the second moment as a second target temperature; and determining the preset target temperature as a second target temperature in a period of time after the second moment.
In one embodiment, the target temperature determining module is configured to determine, during a period from a heating start time to a first time of the heating smoking set, a preset target temperature as a first target temperature; determining a preset target temperature according to a function relation of the temperature of the heating element along with the time change in a time period from the first moment to the second moment; the function relation of the temperature of the heating element with time is expressed by the following formula:
T=Tf1+K*（tn-t1）
K=[（Tf2-Tf1）/（t2-t1）]
t2＞tn＞t1
wherein T represents a preset target temperature, tf1 represents a first target temperature, tf2 represents a second target temperature, T2 represents a second time, T1 represents a first time, and tn represents any time in a period between the first time and the second time.
In one embodiment, the heating control module 604 is configured to control the heating element to start heating if the current temperature data of the heating element is less than the preset target temperature; and if the current temperature data of the heating element is greater than the preset target temperature, controlling the heating element to stop heating.
In one embodiment, the temperature data obtaining module 602 is configured to obtain a resistance value of the heating element according to the voltage and the current at two ends of the heating element, and compare the resistance value of the heating element with a temperature coefficient of resistance TCR of the heating element to obtain a temperature of the heating element.
The above-described modules in the temperature control device of the heating smoking set may be implemented in whole or in part by software, hardware, or a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
The embodiment of the application also provides a heating smoking set which can be applied to the application environment shown in fig. 1. The heating smoking set comprises a heating body, wherein the heating body is used for heating the aerosol-generating substrate; the heating unit is used for heating the electric power source, and the controller is used for controlling the heating unit to start heating or stop heating; wherein:
the controller is adapted to perform the steps of the method described above.
In one embodiment, the heating smoking set further comprises a temperature measuring element for measuring the temperature of the heating element by contact; the temperature measuring element is connected with the controller.
In one embodiment, the temperature measuring element may be a thermocouple.
Optionally, the temperature measuring element is disposed inside or on the surface of the heating element.
Alternatively, the temperature measuring element may be a PT1000 thermal resistor.
In one embodiment, the heating smoking set further comprises a temperature measurement circuit for acquiring an electrical parameter of the heating element; the temperature measuring circuit is connected with the controller.
Specifically, the temperature measuring circuit can be printed on the heating element to measure the temperature of the heating element more effectively.
In one embodiment, the temperature is calculated indirectly by the acquisition of the relevant data by the circuit itself.
Specifically, the ground voltage and the current at two ends of the heating element can be collected through the circuit, and the resistance of the heating element can be calculated through the ground voltage and the current at two ends of the heating element, so that the temperature of the heating element can be indirectly calculated.
In one example, to further illustrate aspects of the present application, a specific example is described below to heat a smoking set including a heating element, and further including a controller and a temperature detection portion as examples:
the controller adjusts the power supply by the temperature value fed back by the temperature detecting part (temperature measuring element or temperature measuring circuit). When the feedback temperature (current heat-generating body temperature data) is lower than the target temperature set by the controller (preset target temperature), heating is started, and when the feedback temperature is higher than the target temperature set by the controller, heating is stopped.
The temperature detection part has various setting forms: 1) External temperature measuring elements such as thermocouples, PT1000, etc.; 2) And the internal circuit is used for setting an independent temperature measuring circuit or directly collecting the voltage of a heating circuit (the voltage of two ends of a heating body), calculating the current resistance of the heating circuit, comparing TCR and the like.
The temperature detection part and the heating element have various connection modes, for example, 1) the temperature detection part is an external temperature measurement element, and is in direct contact with the heating element, and can be arranged in or on the surface of the heating element; 2) An internal independent temperature measuring circuit is printed on the heating element; 3) The temperature is calculated indirectly by collecting the relevant voltage quantity through the circuit.
In one embodiment, a computer readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, implements the steps of the method described above.
In an embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, implements the steps of the method described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. A method of controlling the temperature of a heating smoking article, the heating smoking article comprising a heating element for heating an aerosol-generating substrate; the method comprises the following steps:
acquiring current temperature data of a heating element; the heating element temperature data comprise one of a heating element temperature measured by contact and a heating element temperature calculated by an electric parameter of the heating element;
according to the current heating element temperature data and a preset target temperature, controlling the heating element to start heating or stop heating; the preset target temperature is the temperature data of the heating element, which is determined according to the temperature data of the heating element and changes along with time.
2. The method of claim 1, wherein the preset target temperature comprises a first target temperature and a second target temperature; the heating element temperature measurement data comprise target measurement temperature; wherein the target measured temperature is greater than or equal to the second target temperature, and the second target temperature is greater than the first target temperature;
the method further comprises the steps of:
acquiring a first moment when the heating element reaches the target measurement temperature for the first time, and taking the heating element temperature data corresponding to the first moment as the first target temperature;
acquiring a second moment when the heating element is stabilized at the target measurement temperature, and taking the heating element temperature data corresponding to the second moment as the second target temperature;
determining the preset target temperature as the first target temperature in a period from the starting heating time of the heating smoking set to the second time;
and determining the preset target temperature as the second target temperature in a time period after the second moment.
3. The method according to claim 2, wherein the method further comprises:
determining the preset target temperature as the first target temperature in a period from the starting heating time of the heating smoking set to the first time;
determining the preset target temperature according to the function relation of the temperature of the heating element along with the time change in the time period from the first moment to the second moment;
the function relation of the temperature change of the heating element along with time is expressed by the following formula:
T=Tf1+K*（tn-t1）
K=[（Tf2-Tf1）/（t2-t1）]
t2＞tn＞t1
wherein T represents the preset target temperature, tf1 represents the first target temperature, tf2 represents the second target temperature, T2 represents the second time, T1 represents the first time, and tn represents any time in a time period between the first time and the second time.
4. A method according to any one of claims 1 to 3, wherein said controlling the heating element to start heating or stop heating according to the current heating element temperature data and a preset target temperature comprises:
if the current temperature data of the heating element is smaller than the preset target temperature, controlling the heating element to start heating;
and if the current temperature data of the heating element is greater than the preset target temperature, controlling the heating element to stop heating.
5. A method according to any one of claims 1 to 3, wherein the electrical parameter comprises a voltage and a current across the heating element;
the heating element temperature obtained by calculating the electric parameters of the heating element comprises:
obtaining the resistance of the heating element according to the voltage and the current at the two ends of the heating element;
and comparing the resistance value of the heating element with the resistance temperature coefficient TCR of the heating element to obtain the temperature of the heating element.
6. The method of claim 2, wherein the first target temperature comprises any temperature below a temperature value of the target temperature, and the first time comprises a time corresponding to the any temperature.
7. The method according to claim 2, wherein the method further comprises:
the second moment when the heating element is stabilized at the target measurement temperature is the moment when the temperature measurement data of the heating element reaches the second target temperature for the second time or any time thereafter.
8. The method according to claim 2, wherein the method further comprises:
a third moment and a correspondingly set third target temperature, wherein the third moment is in a time period from the first moment to the second moment; the third target temperature is greater than the first target temperature and less than a second target temperature.
9. A heating smoking article comprising a heater for heating an aerosol-generating substrate; the heating smoking set further comprises a controller, wherein the controller is used for controlling the heating body to start heating or stop heating; wherein:
the controller being adapted to perform the steps of the method of any one of claims 1 to 8.
10. The heating smoking set of claim 9, further comprising a temperature measuring element for measuring a temperature of a heating element by contact or a temperature measuring circuit for obtaining an electrical parameter of the heating element; the temperature measuring element or the temperature measuring circuit is connected with the controller;
the temperature measuring element comprises a thermocouple; the temperature measuring element is arranged in or on the surface of the heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410006928.4A CN117859967A (en) | 2024-01-03 | 2024-01-03 | Heating smoking set and temperature control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410006928.4A CN117859967A (en) | 2024-01-03 | 2024-01-03 | Heating smoking set and temperature control method thereof |
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| CN117859967A true CN117859967A (en) | 2024-04-12 |
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| CN202410006928.4A Pending CN117859967A (en) | 2024-01-03 | 2024-01-03 | Heating smoking set and temperature control method thereof |
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- 2024-01-03 CN CN202410006928.4A patent/CN117859967A/en active Pending
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