CN116391919A

Movatterモバイル変換

Info

Publication number: CN116391919A
Application number: CN202310472285.8A
Authority: CN
Inventors: 刘团芳
Original assignee: Shenzhen Eigate Technology Co Ltd
Current assignee: Shenzhen Eigate Technology Co Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-07-07
Also published as: WO2024222119A1

Abstract

The disclosure provides a temperature control method and device for an electronic cigarette, electronic equipment and the electronic cigarette. The electronic cigarette comprises a heating element and a temperature sensor for measuring the temperature of the airflow around the heating element. The temperature control method for the electronic cigarette comprises the following steps: acquiring a temperature value measured by a temperature sensor in response to the energization of the heating element; determining a first temperature change rate in a first period and a second temperature change rate in a second period after the first period according to the temperature value; and controlling the heating power of the heating element according to the first temperature change rate and the second temperature change rate.

Description

Temperature control method and device for electronic cigarette, electronic equipment and electronic cigarette

Technical Field

The disclosure relates to the technical field of electronic cigarettes. The present disclosure relates in particular to a temperature control method, apparatus, electronic device, electronic cigarette, non-transitory computer readable storage medium and computer program product for electronic cigarette.

Background

The electronic cigarette is a simulated cigarette electronic product and can be used for assisting in smoking cessation or replacing cigarettes. In, for example, a heated non-combustible electronic cigarette product, the smoke may be heated to release odors from the smoke without burning the smoke, and thus without producing a large amount of tar and harmful substances. In order to ensure the taste of the user when using the electronic cigarette, the heating temperature of the electronic cigarette needs to be kept within a certain range.

The approaches described in this section are not necessarily approaches that have been previously conceived or pursued. Unless otherwise indicated, it should not be assumed that any of the approaches described in this section qualify as prior art merely by virtue of their inclusion in this section. Similarly, the problems mentioned in this section should not be considered as having been recognized in any prior art unless otherwise indicated.

Disclosure of Invention

The present disclosure provides a temperature control method, apparatus, electronic device, electronic cigarette, non-transitory computer readable storage medium and computer program product for electronic cigarette.

According to an aspect of the present disclosure, a temperature control method for an electronic cigarette is provided. The electronic cigarette comprises a heating element and a temperature sensor for measuring the temperature of the airflow around the heating element. The method comprises the following steps: acquiring a temperature value measured by a temperature sensor in response to the energization of the heating element; determining a first temperature change rate in a first period and a second temperature change rate in a second period after the first period according to the temperature value; and controlling the heating power of the heating element according to the first temperature change rate and the second temperature change rate.

According to another aspect of the present disclosure, a temperature control apparatus for an electronic cigarette is provided. The electronic cigarette comprises a heating element and a temperature sensor for measuring the temperature of the airflow around the heating element. The device comprises: a temperature value acquisition unit configured to acquire a temperature value measured by the temperature sensor in response to energization of the heating element; a temperature change rate determination unit configured to determine a first temperature change rate in a first period and a second temperature change rate in a second period after the first period, based on the temperature value; and a heat generation control unit configured to control heat generation power of the heat generation element according to the first temperature change rate and the second temperature change rate.

According to another aspect of the present disclosure, there is provided an electronic device including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the temperature control method for an electronic cigarette.

According to another aspect of the present disclosure, there is provided an electronic cigarette, including: a heating element; a temperature sensor for measuring the temperature of the air flow around the heating element; and the electronic equipment.

According to another aspect of the present disclosure, there is provided a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the above-described temperature control method for an electronic cigarette.

According to another aspect of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the above-described temperature control method for an electronic cigarette.

According to one or more embodiments of the present disclosure, on the one hand, the air flow temperature around the heating element of the electronic cigarette can be accurately controlled, so that the heated temperature of the cigarette is maintained within a desired temperature range, rapid heating or rapid cooling of the cigarette can be avoided, and the taste of the user sucking the cigarette is improved; on the other hand, the temperature sensor can resist the higher temperature generated by the heating element, so that the problem of insufficient durability of the electronic cigarette product caused by using the airflow sensor is avoided.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to the structures shown in these drawings without inventive effort to those of ordinary skill in the art. The drawings are as follows:

fig. 1 illustrates a schematic structural diagram of an electronic cigarette according to an embodiment of the present disclosure;

fig. 2 shows a cross-sectional view of an electronic cigarette according to an embodiment of the disclosure;

fig. 3 illustrates a cross-sectional view of an electronic cigarette according to another embodiment of the present disclosure;

fig. 4 shows a flowchart of a temperature control method for an electronic cigarette according to an embodiment of the disclosure;

fig. 5A to 5E illustrate temperature trend charts of an electronic cigarette according to an embodiment of the present disclosure;

fig. 6A to 6E illustrate temperature trend charts of an electronic cigarette according to another embodiment of the present disclosure;

Fig. 7 shows a flowchart of a temperature control method for an electronic cigarette according to another embodiment of the present disclosure; and

fig. 8 shows a block diagram of a temperature control apparatus for an electronic cigarette according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

It should be noted that all directional indicators (such as up, down, left, right, front, rear, etc.) in the embodiments of the present disclosure are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicators are changed accordingly.

In the present disclosure, unless explicitly stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and may be, for example, directly connected, indirectly connected through intermediaries, or may be in communication with each other between two elements or in an interaction relationship between two elements, unless explicitly stated otherwise. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless otherwise indicated, all numbers expressing parameters of parts, technical effects, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about" or "approximately". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations. It will be appreciated by those skilled in the art that each numerical parameter should be construed in light of the number of significant digits and conventional rounding techniques, or in a manner well understood by those skilled in the art, depending upon the desired properties and effects sought to be obtained by the present disclosure.

In this disclosure, the terminology used in the description of the various examples is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context clearly indicates otherwise, the elements may be one or more if the number of the elements is not specifically limited. Furthermore, the term "and/or" as used in this disclosure encompasses any and all possible combinations of the listed items.

As described above, in order to ensure the taste of the user when sucking using the electronic cigarette, it is necessary to keep the heating temperature of the electronic cigarette within a certain range. In the related art, an airflow sensor may be used to sense airflow (e.g., sense a flow rate or a flow velocity of the airflow) to control the start and stop of the heating element of the electronic cigarette accordingly. On one hand, the method can only control the start and stop of the heating element of the electronic cigarette, but cannot accurately control the output power of the heating element, so that the problem of poor taste of smoking caused by rapid heating or rapid cooling of the cigarette materials is solved; on the other hand, the air flow sensor is not high-temperature-resistant, so that the air flow sensor is easily damaged by hot air generated by the heating element, and the electronic cigarette cannot be used normally.

In view of this, the present disclosure provides a temperature control method, apparatus, electronic device, electronic cigarette, non-transitory computer readable storage medium, and computer program product for electronic cigarette. The temperature sensor is used for acquiring the air flow temperature around the heating element, and the heating power of the heating element is controlled according to the temperature change rates in different time periods, so that on one hand, the air flow temperature around the heating element can be accurately controlled, the heated temperature of the smoke is maintained in a desired temperature range, the smoke can be prevented from being rapidly heated or cooled, and the taste of the smoke sucked by a user is improved; on the other hand, the temperature sensor can resist the higher temperature generated by the heating element, so that the problem of insufficient durability of the electronic cigarette product caused by using the airflow sensor is avoided.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Fig. 1 illustrates a schematic structural diagram of an electronic cigarette according to an embodiment of the present disclosure; fig. 2 shows a cross-sectional view of an electronic cigarette according to an embodiment of the disclosure; and fig. 3 shows a cross-sectional view of an electronic cigarette according to another embodiment of the present disclosure.

As shown in fig. 1 to 3, theelectronic cigarette 1 includes aheat generating device 100 and ahousing device 200. Theholding device 200 may be provided inside with aholding chamber 201 for holding the smoke. Theheat generating device 100 is mounted to one end of theaccommodating device 200. In addition, theaccommodating device 200 is further formed with anexhaust channel 203, theaccommodating cavity 201 is communicated with theexhaust channel 203 through anexhaust hole 202, and hot air flow heated by theheating device 100 can be conveyed into theaccommodating cavity 201 through an air flow outlet of theheating device 100, and the hot air flow passes through smoke and heats the smoke to form aerosol, and enters theexhaust channel 203 through theexhaust hole 202 and is exhausted. In an example, the smoke generated by the subsequent heating can also be filtered by the water storage device, and finally inhaled by a user.

Referring to fig. 2 or 3, theheat generating device 100 includes a heat generatingelement 101. Theheat generating device 100 may further include ahousing 102 having a power connection port connected to an inner cavity thereof at one end and an air flow outlet for exhausting the hot air flow at the other end, and the heat generating element may be disposed at a side of the inner cavity of the housing near the air flow outlet. Theheat generating device 100 may further include a first electrode assembly and a second electrode assembly electrically connected to the first and second ends of the heat generating element, respectively, for guiding the electrical connection with the first and second ends of the heat generating element to the power connection port.

With continued reference to fig. 2 or 3, theelectronic cigarette 1 further comprises atemperature sensor 301 for measuring the temperature of the airflow around theheating element 101, thetemperature sensor 301 being arranged adjacent to theheating element 101. It will be appreciated that thetemperature sensor 301 may be in contact with theheating element 101 or may be spaced apart from theheating element 101 so long as thetemperature sensor 301 is capable of measuring the temperature of the air flow around theheating element 101. In the example shown in fig. 2, thetemperature sensor 301 may be disposed upstream of theheat generating element 101 in the airflow direction of the electronic cigarette; in the example shown in fig. 3, thetemperature sensor 301 may be disposed downstream of theheat generating element 101 in the airflow direction of the electronic cigarette.

In addition, it will be appreciated that thetemperature sensor 301 may be disposed within the housing containing theheating element 101 or may be disposed outside the housing containing theheating element 101, so long as thetemperature sensor 301 is capable of timely reflecting the temperature of the airflow around theheating element 101. In the example shown in fig. 2, thetemperature sensor 301 is disposed upstream of theheat generating element 101 in the air flow direction of the electronic cigarette, and is disposed within the housing of theheat generating device 100; in the example shown in fig. 3, thetemperature sensor 301 is disposed downstream of theheat generating element 101 in the air flow direction of the electronic cigarette, and is disposed outside the housing of theheat generating device 100 and near the air flow outlet.

Thetemperature sensor 301 may be various types of temperature sensors, such as a digital temperature sensor, a logic output temperature sensor, an analog temperature sensor.

Referring to fig. 2 or 3, atemperature sensor 301 is shown. It is understood that a plurality oftemperature sensors 301 may be provided.

According to an aspect of the present disclosure, a temperature control method for an electronic cigarette is provided. Fig. 4 shows a flowchart of atemperature control method 400 for an e-cigarette according to an embodiment of the disclosure.

As shown in fig. 4, themethod 400 includes:

Step S410, in response to theheating element 101 being powered on, acquiring a temperature value measured by thetemperature sensor 301;

step S420, determining a first temperature change rate in a first period and a second temperature change rate in a second period after the first period according to the temperature value; and

step S430, controlling the heating power of theheating element 101 according to the first temperature change rate and the second temperature change rate.

In step S410, acquiring the temperature value measured by thetemperature sensor 301 may include acquiring a temperature change curve measured by thetemperature sensor 301 over a continuous period of time; or a plurality of temperature values respectively measured by thetemperature sensor 301 at a plurality of discrete time points over a period of time.

In step S420, the duration of the first period may be, for example, 0.1S, 0.2S, … S, or other durations; and the duration of the second period may be, for example, 0.1s, 0.2s, … 1s, or other durations. And the duration of the first period and the second period may be less than the duration of a single puff of the electronic cigarette by the user. In an example, the first period may be a period from 0.1s to 0.2s, and the second period may be a period from 0.3s to 0.4 s.

The first rate of change of temperature over the first period of time may be a ratio between a value of change in temperature over the first period of time (e.g., a difference between a highest temperature measured over the first period of time and a lowest temperature) and a duration of the first period of time; and the second rate of change of temperature during the second period may be a ratio between a value of change in temperature during the second period (e.g., a difference between a highest temperature measured during the second period and a lowest temperature) and a duration of the second period. It will be appreciated that the first and second rates of temperature change may each be positive, negative, or zero, representing an increase, decrease, or stay the same in temperature.

In step S430, the heat generation power of theheat generating element 101 may be controlled by comparing the magnitudes of the first temperature change rate and the second temperature change rate, for example.

Therefore, the temperature sensor is used for acquiring the air flow temperature around the heating element, and the heating power of the heating element is controlled according to the temperature change rates in different time periods, so that on one hand, the air flow temperature around the heating element can be accurately controlled, the heated temperature of the smoke is maintained in a desired temperature range, the smoke can be prevented from being rapidly heated or rapidly cooled, and the taste of the smoke sucked by a user is improved; on the other hand, the temperature sensor can resist the higher temperature generated by the heating element, so that the problem of insufficient durability of the electronic cigarette product caused by using the airflow sensor is avoided.

According to some embodiments, the second period of time may be immediately after the first period of time. In an example, the first period may be a period from 0.1s to 0.2s, and the second period may be a period from 0.2s to 0.3 s.

Embodiments of the present disclosure will be further described below with reference to fig. 2, 5A to 5E, wherein fig. 5A to 5E show an electronic cigarette temperature change trend graph according to an embodiment of the present disclosure.

According to some embodiments, referring to fig. 2, thetemperature sensor 301 may be disposed upstream of theheating element 101 in the airflow direction of the electronic cigarette, and the above-described step S430 may include: in response to the second temperature change rate being less than the first temperature change rate and the absolute value of the difference between the second temperature change rate and the first temperature change rate being determined to be greater than the first threshold, the heat generation power of theheat generation element 101 is increased.

As shown in fig. 2, when the user sucks from theexhaust passage 203 side, an external cold air flow will enter theelectronic cigarette 1 from theheat generating device 100 side, and in the case where thetemperature sensor 301 is disposed upstream of theheat generating element 101 in the air flow direction of the electronic cigarette, the external cold air flow will first flow through thetemperature sensor 301 and then through theheat generating element 101 for heating. Fig. 5A to 5E respectively show 5 different temperature variation trends measured when thetemperature sensor 301 is disposed upstream of theheating element 101 in the airflow direction of the electronic cigarette, wherein the horizontal axis represents time, the vertical axis represents temperature, the periods t1 to t2 may indicate a first period, and the periods t2 to t3 may indicate a second period after the first period.

In the example of fig. 5A, assuming that theheating element 101 is in the energization pre-heating state in the period t1-t2, the determined temperature change rate a1 in the first period t1-t2 may be 50 ℃/s, and when the temperature change rate a2 is measured in the second period t2-t3 to be, for example, 30 ℃/s, the second temperature change rate a2 is smaller than the first temperature change rate a1 and the absolute value (20 ℃/s) of the difference of the second temperature change rate a2 and the first temperature change rate a1 is larger than the first threshold (for example, 10 ℃/s). In this case, it can be determined that the pumping action occurs in the period t2-t3 from the time t2 because the external cold air flow rapidly flows through thetemperature sensor 301 and theheating element 101 at the time of pumping, thereby taking away a part of the heat of the air around theheating element 101, whereby the rate of change of the temperature of the air around theheating element 101 measured by thetemperature sensor 301 occurs from the first period t1-t2 to the second period t2-t3 (the rate of rise of the temperature is slowed down). In this case, in order to ensure that the temperature of theheating element 101 remains constant, the heating power of theheating element 101 may be increased so that the temperature at which the soot in theaccommodating chamber 201 is heated is maintained within a desired temperature range.

It will be appreciated that the specific value of the first threshold may be set in dependence on the type of smoke or type of e-cigarette.

Embodiments of the present disclosure will be further described with reference to fig. 3, 6A to 6E, wherein fig. 6A to 6E show a trend graph of electronic cigarette temperature change according to another embodiment of the present disclosure.

According to some embodiments, referring to fig. 3, thetemperature sensor 301 may be disposed downstream of theheating element 101 in the airflow direction of the electronic cigarette, and the above-described step S430 may include: in response to the second temperature change rate being greater than the first temperature change rate and the absolute value of the difference between the second temperature change rate and the first temperature change rate being determined to be greater than the first threshold, the heat generation power of theheat generation element 101 is increased.

As shown in fig. 3, when the user sucks from theexhaust passage 203 side, an external cold air flow will enter theelectronic cigarette 1 from theheat generating device 100 side, and in the case where thetemperature sensor 301 is disposed downstream of theheat generating element 101 in the air flow direction of the electronic cigarette, the external cold air flow will first enter theheat generating device 100 to be heated via theheat generating element 101, and then flow through thetemperature sensor 301. Fig. 6A to 6E respectively show 5 different temperature variation trends measured when thetemperature sensor 301 is disposed downstream of theheating element 101 in the airflow direction of the electronic cigarette, wherein the horizontal axis represents time, the vertical axis represents temperature, the periods t1 to t2 may indicate a first period, and the periods t2 to t3 may indicate a second period after the first period.

In the example of fig. 6A, assuming that theheating element 101 is in the energization pre-heating state in the period t1-t2, the determined temperature change rate a1 in the first period t1-t2 may be 30 ℃/s, and when the temperature change rate a2 is measured in the second period t2-t3 to be, for example, 50 ℃/s, the second temperature change rate a2 is greater than the first temperature change rate a1 and the absolute value (20 ℃/s) of the difference of the second temperature change rate a2 and the first temperature change rate a1 is greater than the first threshold (for example, 10 ℃/s). In this case, it can be determined that the sucking action occurs in the period t2-t3 from the time t2 because the air heated around theheating element 101 at the time of sucking will rapidly flow through thetemperature sensor 301, whereby the rate of change in temperature of the air around theheating element 101 measured by thetemperature sensor 301 occurs from the first period t1-t2 to the second period t2-t3 (the rate of rise in temperature increases). In this case, in order to ensure that the temperature of theheating element 101 remains constant, the heating power of theheating element 101 may be increased so that the temperature at which the soot in theaccommodating chamber 201 is heated is maintained within a desired temperature range.

Fig. 6C to 6E respectively show another 3 different temperature change trends measured when thetemperature sensor 301 is disposed downstream of theheating element 101 along the airflow direction of the electronic cigarette, which will not be described herein.

According to some embodiments, in step S430, in response to determining that the absolute value of the difference of the second temperature change rate and the first temperature change rate is greater than the first threshold, increasing the heat generation power of theheat generating element 101 may include: in response to determining that the absolute value of the difference between the second temperature change rate and the first temperature change rate is greater than the first threshold and that the trend of temperature change indicated by the second temperature change rate and the first temperature change rate is opposite, the heat generation power of theheat generation element 101 is increased in a non-linearly increasing manner.

For example, in the case shown in fig. 5C or fig. 6C, the opposite trend of the temperature change indicated by the second temperature change rate a2 and the first temperature change rate a1 means that a large degree of pumping action (e.g., a rapid pumping rate, a large pumping amount) occurs, whereby the progress of the temperature being heated to a suitable temperature can be further accelerated in the large-mouth pumping scene by increasing the heating power of theheating element 101 in a nonlinear incremental manner.

According to some embodiments, in step S430, in response to determining that the absolute value of the difference of the second temperature change rate and the first temperature change rate is greater than the first threshold, increasing the heat generation power of theheat generating element 101 may include: in response to determining that the absolute value of the difference between the second temperature change rate and the first temperature change rate is greater than the first threshold, and that the trend of temperature change indicated by the second temperature change rate and the first temperature change rate is the same, the heat generation power of theheat generation element 101 is increased in a non-linearly decreasing manner.

For example, in the case of the scenes shown in fig. 5A, 5E or 6A, 6E, the same trend of the temperature change indicated by the second temperature change rate a2 and the first temperature change rate a1 means that a small degree of pumping action (e.g., a pumping rate is slow, a pumping amount is small) occurs, whereby by increasing the heat generation power of theheat generating element 101 in a non-linearly decreasing manner, the possibility that the temperature is heated too fast can be reduced in a small-mouth pumping scene.

In addition, in the scenario shown in fig. 5B, 5D, or 6B, 6D, for example, one of the second temperature change rate a2 and the first temperature change rate a1 is zero, the heat generation power of thethermal device 100 may be increased in a linearly increasing manner.

According to some embodiments, step S430 may include: in response to determining that the value of any one of the first temperature change rate and the second temperature change rate is a positive value and greater than the second threshold, the heat generation power of theheat generation element 101 is reduced.

Thus, when the value of either the first temperature change rate or the second temperature change rate is positive and is greater than the second threshold (e.g., 60 ℃/s), indicating that the current temperature is rising too fast, such a sharp rise in temperature may cause the smoky material to change too much back and forth, thereby affecting the user's smoking experience. Therefore, by reducing the heating power of theheating element 101 in this case, a sharp rise in temperature can be avoided, thereby making the smoke taste more mellow.

It will be appreciated that the specific value of the second threshold may be set in dependence on the type of smoke or type of e-cigarette.

According to some embodiments, the first period may comprise a plurality of discrete first sub-periods and the first rate of temperature change is an average of the respective rates of temperature change for the plurality of first sub-periods and the second period may comprise a plurality of discrete second sub-periods and the second rate of temperature change is an average of the respective rates of temperature change for the plurality of second sub-periods.

In an example, the first period (e.g., 0-1.0 s) may include 5 discrete subintervals (e.g., 5 subintervals of 0-0.1s, 0.2-0.3s, 0.4-0.5s, 0.6-0.7s, and 0.8-0.9s, respectively). The respective rate of temperature change may be determined in each sub-period and an average of the respective rates of temperature change for the 5 sub-periods may be determined. Similarly, the second period (e.g., 1.0-2.0 s) may include 5 discrete subintervals (e.g., 5 subintervals of 1.0-1.1s, 1.2-1.3s, 1.4-1.5s, 1.6-1.7s, and 1.8-1.9s, respectively). The respective rate of temperature change may be determined in each sub-period and an average of the respective rates of temperature change for the 5 sub-periods may be determined.

Fig. 7 shows a flowchart of atemperature control method 700 for an e-cigarette according to another embodiment of the present disclosure. As shown in fig. 7, themethod 700 includes steps S710 to S750, wherein steps S720 to S740 are similar to steps S410 to S430 described above with respect to fig. 4, respectively, and are not repeated here.

According to some embodiments, as shown in fig. 7, themethod 700 may further comprise: step S710, in response to the energizing of the heating element, controlling the heating element to heat up at a constant power.

Thus, by controlling theheating element 101 to raise the temperature with constant power, the temperature change rates measured by thetemperature sensor 301 at different periods of time tend to be uniform when no pumping occurs, and the temperature change rates change between different periods of time when pumping occurs, thereby accurately determining that pumping occurs even if a small rate change occurs, thereby controlling theheating element 101 to increase the heating power in time, and further ensuring that the heated temperature of the smoke remains within the desired temperature range.

With continued reference to fig. 7, in accordance with some embodiments, themethod 700 may further include: and step S750, controlling the heating element to stop heating in response to the temperature value being greater than the third threshold. Thereby, when the ambient temperature of theheating element 101 is detected to be too high, the smoke can be prevented from being excessively heated.

It will be appreciated that the specific value of the third threshold may be set in dependence on the type of smoke or type of e-cigarette. In an example, the third threshold may be 350 ℃, 400 ℃, or 750 ℃.

According to some embodiments, themethod 700 may further comprise: the heating element is controlled to stop heating in response to the temperature value remaining unchanged for a predetermined period of time. As described above, if theheating element 101 is warmed up with a constant power, the temperature change rates measured by thetemperature sensor 301 at different periods tend to be uniform when no pumping occurs. If the temperature measured by the temperature sensor is basically kept unchanged in the preset time period, the fact that suction does not occur in the preset time period is indicated, the heating element automatically stops heating, and the electronic cigarette is powered off. The above-mentioned predetermined period of time is, for example, in the range of 3 to 30 minutes, such as set to 3 minutes, 5 minutes, or 10 minutes.

According to another aspect of the present disclosure, a temperature control apparatus for an electronic cigarette is provided. The electronic cigarette comprises a heating element and a temperature sensor for measuring the temperature of the airflow around the heating element.

Fig. 8 shows a block diagram of atemperature control apparatus 800 for an electronic cigarette according to an embodiment of the present disclosure.

As shown in fig. 8, theapparatus 800 includes:

a temperaturevalue acquisition unit 810 configured to acquire a temperature value measured by the temperature sensor in response to energization of the heating element;

a temperature changerate determination unit 820 configured to determine a first temperature change rate in a first period and a second temperature change rate in a second period after the first period, based on the temperature value; and

the heatgeneration control unit 830 is configured to control the heat generation power of the heat generation element according to the first temperature change rate and the second temperature change rate.

It should be appreciated that the various elements of theapparatus 800 shown in fig. 8 may correspond to the various steps in themethod 400 described with reference to fig. 4. Thus, the operations, features, and advantages described above with respect tomethod 400 are equally applicable toapparatus 800 and the units it comprises. For brevity, certain operations, features and advantages are not described in detail herein.

It should also be appreciated that various techniques may be described herein in the general context of software hardware elements or program modules. The various units described above with respect to fig. 8 may be implemented in hardware or in hardware in combination with software and/or firmware. For example, the units may be implemented as computer program code/instructions configured to be executed in one or more processors and stored in a computer-readable storage medium. Alternatively, these units may be implemented as hardware logic/circuitry. For example, in some embodiments, one or more ofunits 810 through 830 may be implemented together in a System on Chip (SoC). The SoC may include an integrated circuit chip including one or more components of a processor (e.g., a central processing unit (Central Processing Unit, CPU), microcontroller, microprocessor, digital signal processor (Digital Signal Processor, DSP), etc.), memory, one or more communication interfaces, and/or other circuitry, and may optionally execute received program code and/or include embedded firmware to perform functions.

According to some embodiments, the temperature sensor is disposed upstream of the heat generating element in the airflow direction of the electronic cigarette, and the heatgeneration control unit 830 may be further configured to: and increasing the heating power of the heating element in response to the second temperature change rate being less than the first temperature change rate and determining that an absolute value of a difference between the second temperature change rate and the first temperature change rate is greater than a first threshold.

According to some embodiments, the temperature sensor is disposed downstream of the heat generating element in the airflow direction of the electronic cigarette, and the heatgeneration control unit 830 may be further configured to: and responsive to the second temperature change rate being greater than the first temperature change rate and determining that an absolute value of a difference between the second temperature change rate and the first temperature change rate is greater than a first threshold, increasing a heating power of the heating element.

According to another aspect of the present disclosure, there is provided an electronic device including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a temperature control method for an e-cigarette according to embodiments of the present disclosure.

According to another aspect of the present disclosure, there is provided an electronic cigarette comprising: aheating element 101, atemperature sensor 301 for measuring the temperature of the air flow around theheating element 101; and the electronic device according to the embodiment of the disclosure.

Electronic cigarettes include, but are not limited to, atomized electronic cigarettes, heated non-combustion electronic cigarettes (HNB), hookahs, and the like.

According to some embodiments, as shown in fig. 2 or 3, the electronic cigarette may further comprise a receivingcavity 201 for receiving the tobacco material, the receivingcavity 201 being located downstream of thetemperature sensor 301 in the airflow direction of the electronic cigarette.

According to another aspect of the present disclosure, there is provided a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform a temperature control method for an electronic cigarette according to an embodiment of the present disclosure.

According to another aspect of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements a temperature control method for an electronic cigarette according to embodiments of the present disclosure.

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), complex Programmable Logic Devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

The above-mentioned "tobacco material" or "tobacco leaf" refers to a smoke substance, which can generate smell and/or nicotine and/or smoke after heating or burning. The smoke may be solid, semi-solid, and liquid. Solid tobacco materials are often processed into flakes due to air permeability, assembly, and manufacturing considerations, and are therefore also commonly referred to as flakes, and filamentary flakes are also referred to as flake filaments. The smoke materials discussed in the embodiments of the present disclosure may be natural or synthetic smoke liquids, smoke oils, smoke gels, smoke pastes, cut filler, tobacco leaves, etc., e.g., synthetic smoke materials contain glycerin, propylene glycol, nicotine, etc. The tobacco liquid is liquid, the tobacco oil is oily, the tobacco gum is gel, the tobacco paste is paste, the tobacco shreds comprise natural or artificial or extracted tobacco shreds, and the tobacco leaves comprise natural or artificial or extracted tobacco leaves. The smoke may be heated in a form that is encapsulated by other substances, such as in a thermally degradable package, e.g. microcapsules, and the desired volatile substances are removed from the degraded or porous encapsulation package after heating.

The tobacco material may or may not contain nicotine. The tobacco material containing nicotine can comprise natural tobacco product, and at least one of tobacco juice, tobacco tar, tobacco gum, tobacco paste, tobacco shred, tobacco leaf, etc. prepared from nicotine. The tobacco liquid is water-like, the tobacco oil is oil-like, the tobacco gum is gel, the tobacco paste is paste, the tobacco shreds comprise natural or artificial or extracted tobacco shreds, and the tobacco leaves comprise natural or artificial or extracted tobacco leaves. The tobacco material without nicotine mainly contains fragrant substances, such as perfume, which can be atomized to simulate smoking process and stop smoking. In some embodiments, the flavor comprises peppermint oil. The smoke may also include other additives such as glycerin and/or propylene glycol.

The foregoing is merely exemplary embodiments or examples of the present disclosure, and is not intended to limit the scope of the disclosure, and all equivalent structural changes made by the disclosure and the accompanying drawings or direct/indirect applications in other related technical fields are included in the scope of the disclosure. Various elements of the embodiments or examples may be omitted or replaced with equivalent elements thereof. Furthermore, the steps may be performed in a different order than described in the present disclosure. Further, various elements of the embodiments or examples may be combined in various ways. It is important that as technology evolves, many of the elements described herein may be replaced by equivalent elements that appear after the disclosure.

Claims

1. A temperature control method for an electronic cigarette, the electronic cigarette comprising a heating element and a temperature sensor for measuring a temperature of an airflow around the heating element, the method comprising:

acquiring a temperature value measured by the temperature sensor in response to the energizing of the heating element;

determining a first temperature change rate in a first period and a second temperature change rate in a second period after the first period according to the temperature value; and

and controlling the heating power of the heating element according to the first temperature change rate and the second temperature change rate.

2. The method of claim 1, wherein the temperature sensor is disposed upstream of the heating element in the airflow direction of the e-cigarette, and controlling the heating power of the heating element according to the first and second rates of temperature change comprises:

and responsive to the second rate of temperature change being less than the first rate of temperature change and determining that an absolute value of a difference between the second rate of temperature change and the first rate of temperature change is greater than a first threshold, increasing a heating power of the heating element.

3. The method of claim 1, wherein the temperature sensor is disposed downstream of the heating element in the airflow direction of the e-cigarette, and controlling the heating power of the heating element according to the first and second rates of temperature change comprises:

And responsive to the second rate of temperature change being greater than the first rate of temperature change and determining that an absolute value of a difference between the second rate of temperature change and the first rate of temperature change is greater than a first threshold, increasing a heating power of the heating element.

4. A method according to claim 2 or 3, wherein in response to determining that the absolute value of the difference in the second rate of temperature change and the first rate of temperature change is greater than a first threshold, increasing the heating power of the heating element comprises:

in response to determining that the absolute value of the difference between the second temperature change rate and the first temperature change rate is greater than a first threshold and that the trend of temperature change indicated by the second temperature change rate and the first temperature change rate is opposite, the heating power of the heating element is increased in a non-linear incremental manner.

5. A method according to claim 2 or 3, wherein in response to determining that the absolute value of the difference in the second rate of temperature change and the first rate of temperature change is greater than a first threshold, increasing the heating power of the heating element comprises:

in response to determining that the absolute value of the difference between the second temperature change rate and the first temperature change rate is greater than a first threshold, and that the trend of temperature change indicated by the second temperature change rate and the first temperature change rate is the same, the heating power of the heating element is increased in a non-linearly decreasing manner.

6. The method of claim 1, controlling the heating power of the heating element according to the first and second rates of temperature change comprising:

in response to determining that the value of any one of the first and second temperature change rates is positive and greater than a second threshold, the heating power of the heating element is reduced.

7. The method of claim 1, wherein the first period of time comprises a plurality of discrete first sub-periods and the first rate of temperature change is an average of the respective rates of temperature change for the plurality of first sub-periods, and wherein the second period of time comprises a plurality of discrete second sub-periods and the second rate of temperature change is an average of the respective rates of temperature change for the plurality of second sub-periods.

8. A method according to any one of claims 1 to 3, further comprising:

and controlling the heating element to heat up with constant power in response to the energization of the heating element.

9. A method according to any one of claims 1 to 3, further comprising:

and controlling the heating element to stop heating in response to the temperature value being greater than a third threshold.

10. A method according to any one of claims 1 to 3, wherein the second period of time immediately follows the first period of time.

11. A temperature control device for an electronic cigarette, the electronic cigarette comprising a heating element and a temperature sensor for measuring the temperature of an air stream surrounding the heating element, the device comprising:

a temperature value acquisition unit configured to acquire a temperature value measured by the temperature sensor in response to energization of the heating element;

a temperature change rate determination unit configured to determine a first temperature change rate in a first period and a second temperature change rate in a second period after the first period, based on the temperature value; and

and a heat generation control unit configured to control heat generation power of the heat generation element according to the first temperature change rate and the second temperature change rate.

12. The apparatus of claim 11, wherein the temperature sensor is disposed upstream of the heat generating element in an airflow direction of the electronic cigarette, the heat generation control unit being further configured to:

13. The apparatus of claim 11, wherein the temperature sensor is disposed downstream of the heat generating element in an airflow direction of the electronic cigarette, the heat generation control unit being further configured to:

14. An electronic device, comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein the method comprises the steps of

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1-10.

15. An electronic cigarette, comprising:

a heating element;

a temperature sensor for measuring the temperature of the air flow around the heating element; and

the electronic device of claim 14.

16. The electronic cigarette of claim 15, further comprising:

and the accommodating cavity is used for accommodating the tobacco, and is positioned at the downstream of the temperature sensor along the airflow direction of the electronic cigarette.

17. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1-10.

18. A computer program product comprising a computer program which, when executed by a processor, implements the method according to any of claims 1-10.