WO2021208946A1

WO2021208946A1 - Heat-not-burn tobacco appliance, and temperature control method

Info

Publication number: WO2021208946A1
Application number: PCT/CN2021/087155
Authority: WO
Inventors: 刘华臣; 李丹; 黄婷; 谭健; 刘磊
Original assignee: 湖北中烟工业有限责任公司
Priority date: 2020-04-15
Filing date: 2021-04-14
Publication date: 2021-10-21
Also published as: CN112369721A; CN112369721B

Abstract

Provided are a heat-not-burn tobacco appliance, and a temperature control method therefor. The method comprises: after the heating of tobacco is started and the temperature of the tobacco rises to a third temperature threshold value, controlling the temperature of the tobacco to be within a range from the third temperature threshold value to a fourth temperature threshold value and maintaining same for a first duration, wherein the third temperature threshold value is denoted by T3, and the fourth temperature threshold value is denoted by T4 (S1); and controlling the temperature reduction of the tobacco, and maintaining the temperature of the tobacco within a range from a first temperature threshold value to a second temperature threshold value, wherein the first temperature threshold value is denoted by T1, the second temperature threshold value is denoted by T2, and the temperature threshold values satisfy: T4 > T3 > T2 > T1 > 0ºC (S2). The temperature control method can improve the user experience of a heat-not-burn tobacco appliance.

Description

Heating non-burning tobacco appliance and temperature control method

Technical field

This application relates to the technical field of tobacco appliances, in particular to a heat-not-burn tobacco appliance and a temperature control method.

Background technique

Heat-not-burn tobacco appliances gradually entered the public view. How to optimize the heating process so as to improve the user experience has become a continuous concern of those skilled in the art.

Technical solutions

The present application provides a temperature control method for a heat-not-burn tobacco appliance and a heat-not-burn tobacco appliance to solve the technical problem of how to improve user experience.

In order to solve the above technical problems, the technical solutions provided by this application are as follows.

In the first aspect, an embodiment of the present application provides a temperature control method for heating non-burning tobacco appliances, including: after starting to heat the tobacco, after the tobacco is heated to a third temperature threshold, controlling the temperature of the tobacco to be at the The third temperature threshold to the fourth temperature threshold is maintained for the first time period, the third temperature threshold is denoted as T3, and the fourth temperature threshold is denoted as T4; the temperature of the tobacco is controlled and the temperature of the tobacco is maintained Within the range of the first temperature threshold to the second temperature threshold, the first temperature threshold is denoted as T1, and the second temperature threshold is denoted as T2; where: T4>T3>T2>T1>0°C is satisfied.

Optionally, controlling the temperature of the tobacco to maintain the temperature within the range of the third temperature threshold to the fourth temperature threshold for the first time period includes: entering a second process, wherein the output power provided to the heating element is set to the second When the temperature of the tobacco reaches the fourth temperature threshold, enter the third process, where the output power provided to the heating element is set to the third power, In order to cool the tobacco, the third power is recorded as P3; the second process and the third process are alternately entered, until the total duration of the second process and the third process reaches the first time period and then the stop; where: P2 is satisfied >P3≥0W.

Optionally, controlling the cooling of the tobacco and maintaining the temperature of the tobacco within a range from a first temperature threshold to a second temperature threshold includes: entering a fourth process, wherein the output power provided to the heating element is set to the first Four powers to cool the tobacco; when the tobacco cools to the first temperature threshold, the fifth process is entered, wherein the output power provided to the heating element is set to the fifth power to raise the temperature of the tobacco, so The fifth power is denoted as P5; when the temperature of the tobacco reaches the second temperature threshold, the sixth process is entered, wherein the output power provided to the heating element is set to the sixth power to cool the tobacco, and the first The six powers are denoted as P6; the fifth process and the sixth process are alternately entered; among them, it is satisfied: P5>P6≥0W.

Optionally, the fourth power is denoted as P4, which satisfies: 0W≤P4<P6.

Optionally, after starting the heating of the tobacco, the first process is entered, wherein the output power provided to the heating element is set as the first power, and the first power is denoted as P1, which satisfies: P1>P2.

Optionally, T1≥260°C.

Optionally, the first duration is denoted as TIME1, which satisfies: 12s≤TIME1≤60s.

Optionally, 310°C≤T1<T2≤350°C.

Optionally, 350°C≤T3<T4≤390.

In a second aspect, the embodiments of the present application provide a heating non-combustion tobacco appliance, which includes a tobacco substance containing cavity, a heating element, a temperature sensor, a temperature controller, and a power supply module. The temperature sensor is used to detect the temperature of the tobacco in the tobacco material containing cavity, the power supply module is used to supply power to the heating element, and the temperature controller is used to set the power supply module to the For output power provided by the heating element, the temperature controller includes a memory and a processor, the memory stores instructions, and the processor runs the instructions to execute the temperature control method of the first aspect.

Optionally, the heating element includes an infrared coating, the infrared coating is located on the outer surface of the tobacco substance accommodating cavity, and the infrared coating passes through an electrode located on its side facing away from the tobacco substance accommodating cavity It is electrically connected with the power supply module.

Optionally, it further includes a barrier layer wrapping the infrared coating, and the barrier layer is used to block the infrared rays emitted by the infrared coating from passing through the barrier layer.

Optionally, the heating element includes an infrared coating, the infrared coating is located on the inner surface of the tobacco substance accommodating cavity, and the infrared coating passes through an electrode located on a side of the tobacco substance accommodating cavity away from it. It is electrically connected with the power supply module.

Optionally, it further includes a barrier layer that wraps the tobacco substance containing cavity, and the barrier layer is used to block the infrared rays emitted by the infrared coating from passing through the barrier layer.

Beneficial effect

Compared with the prior art, in the embodiment of the present application, when the user uses the heat-not-burn tobacco appliance, the temperature of the tobacco rises rapidly and is maintained in the temperature range where the third temperature threshold and the fourth temperature threshold are located. Inside, the tobacco quickly absorbs a large amount of heat in a short time, so that the tobacco quickly produces enough smoke for the user to inhale. Subsequently, the temperature of the tobacco is appropriately lowered to maintain it between the first temperature threshold and the second temperature threshold. The appropriate reduction of the tobacco temperature is beneficial to provide users with a better taste and can also extend the time of tobacco use.

Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 is a block diagram of a heat-not-burn tobacco appliance provided by an embodiment of the application.

Fig. 2 is a flow chart of a temperature control method for heating non-burning tobacco appliances according to an embodiment of the application.

Fig. 3 is a schematic diagram of tobacco temperature changes of the heating non-burning tobacco appliance provided by the embodiment of the application.

Fig. 4 is a detailed flow chart of a temperature control method for heating non-burning tobacco appliances provided by an embodiment of the application.

Fig. 5 is a structural diagram of a heat-not-burn tobacco appliance provided by an embodiment of the application.

Embodiments of the present invention

In order to explain the overall concept of the application more clearly, a detailed description will be given below by way of example in conjunction with the accompanying drawings of the specification.

In this application, it should be understood that terms such as "including" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof disclosed in this specification, and are not intended to exclude one Or the possibility of the existence of multiple other features, numbers, steps, behaviors, components, parts or combinations thereof.

In addition, it should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with the embodiments.

1, the embodiment of the present application provides a heating non-combustion tobacco appliance, including a tobacco substance containing cavity 1, a heating element 2, a temperature sensor 3, a temperature controller 4, and a power supply module 5. The heating element 2 is used to treat the tobacco substance The tobacco in the containing cavity 1 is heated, the temperature sensor 3 is used to detect the temperature of the tobacco in the tobacco material containing cavity 1, the power supply module 5 is used to provide driving power for the heating element 2, and the controller is used to set the power supply module 5 to provide the heating element 2 The output power. In some specific structures, the output voltage provided by the control power supply module 5 to the heating element 2 is equivalent to the output power provided by the control power supply module 5 to the heating element 2.

For the temperature control method of the heat-not-burn tobacco appliance provided by the embodiment of the present application, from the perspective of equipment, the execution body may be the temperature controller 4 in the heat-not-burn tobacco appliance; from the perspective of the program, the execution body correspondingly It can be a program carried on these heat-not-burn tobacco appliances.

Referring to Fig. 2 and Fig. 3 in conjunction with Fig. 1, the temperature control method includes the following steps.

Step S1: After starting to heat the tobacco, after the temperature of the tobacco reaches a third temperature threshold, the temperature of the tobacco is controlled to maintain a first period of time within the range of the third temperature threshold to the fourth temperature threshold. The three temperature threshold is denoted as T3, and the fourth temperature threshold is denoted as T4.

Step S2, controlling the temperature of the tobacco, and maintaining the temperature of the tobacco within a range of a first temperature threshold to a second temperature threshold, the first temperature threshold is denoted as T1, and the second temperature threshold is denoted as T2; Among them, satisfy: T4>T3>T2>T1>0℃.

In the initial stage, the temperature of the tobacco is maintained within the temperature range of the higher third temperature threshold and the fourth temperature threshold. Because the temperature is high enough, enough heat is generated, so that the tobacco absorbs more heat in a short time, and then produces enough smoke. The temperature interval formed by the first temperature threshold and the second temperature threshold is appropriately lower than the temperature interval formed by the third temperature threshold and the fourth temperature threshold, which can improve the taste and the amount of smoke generated is more suitable for the user to inhale. In this way, the user experience can be better improved.

The following describes the implementation details of the temperature control method with reference to FIG. 4 in conjunction with FIG. 1 and FIG. 3.

When a signal to start heating the tobacco is received, the first process is entered, in which the output power provided to the heating element 2 is set as the first power, and the first power is denoted as P1.

The first power should be large enough in order to shorten the duration of the temperature rise as much as possible, so as to make the tobacco produce smoke more quickly. Referring to Figure 4, after starting to heat the tobacco, the temperature of the tobacco rises rapidly. However, users should not smoke at this time because the tobacco does not absorb enough heat.

When the temperature of the tobacco reaches the third temperature threshold, the second process is entered, in which the output power provided to the heating element 2 is set to the second power, so that the temperature of the tobacco is raised, and the rate of temperature rise is less than that in the first process. The heating rate, the second power is denoted as P2.

When the temperature of the tobacco reaches the fourth temperature threshold, the third process is entered, wherein the output power provided to the heating element 2 is set to the third power to cool the tobacco, and the third power is denoted as P3.

The second process and the third process are alternately entered, and the total duration of the second process and the third process reaches the first time period and then stops.

The second process and the third process are performed alternately, with the purpose of maintaining the temperature of the tobacco within a higher temperature range of the third temperature threshold and the fourth temperature threshold. Because the temperature is high enough, enough heat is generated, so that the tobacco absorbs more heat in a short time. The alternate phase of the second process and the third process belongs to the "warm-up phase".

The fourth process is entered, wherein the output power provided to the heating element 2 is set to the fourth power, so as to cool the tobacco. For example, the temperature of tobacco is always high, too much smoke is produced, and the temperature of the smoke is too high, and the user experience is not good. The purpose of the fourth process is to appropriately lower the temperature of the tobacco. In order to shorten the time of this process, the fourth power can be set as P4=0W. That is, the heating of the tobacco is completely stopped.

When the temperature of the tobacco is lowered to the first temperature threshold, the fifth process is entered, in which the output power provided to the heating element 2 is set to the fifth power to raise the temperature of the tobacco, and the fifth power is recorded as P5.

When the temperature of the tobacco reaches the second temperature threshold, the sixth process is entered, in which the output power provided to the heating element 2 is set to the sixth power to cool the tobacco, and the sixth power is denoted as P6.

Alternately enter the fifth process and the sixth process.

The temperature interval formed by the first temperature threshold and the second temperature threshold is appropriately lower than the temperature interval formed by the third temperature threshold and the fourth temperature threshold, which can improve the taste and the amount of smoke generated is more suitable for the user to inhale.

Of course, the fourth power can also be smaller than the sixth power but not 0W.

The duration of the alternate between the fifth process and the sixth process is recorded as TIME2, which is usually the program setting value. The purpose is to stop heating after the tobacco is consumed. Then the heating is stopped and the tobacco cools. The duration of the alternation between the fifth process and the sixth process is usually 3min-4min.

In the foregoing embodiment, it is satisfied: T4>T3>T2>T1>0, P1>P2>P3≥0, P1>P5>P6≥0.

Of course, in order to simplify the temperature control method, P1=P2 or P1=P5 can also be set.

For different types of tobacco and different types of heat-not-burn tobacco appliances, the values of the above parameters can be adjusted appropriately.

Optionally, T1≥260°C. This is to keep tobacco from producing smoke all the time.

In a specific experimental example, TIME1=15s.

Optionally, 310°C≤T1<T2≤350°C. For most tobaccos, a moderate amount of smoke can be produced within this temperature range.

Optionally, 350°C≤T3<T4≤390. For most tobacco, a large amount of smoke can be quickly produced within this temperature range without damaging the quality of the tobacco.

Based on the same inventive concept, referring to FIGS. 1 and 5, an embodiment of the present application also provides a heat-not-burn tobacco appliance, including a tobacco substance containing cavity 1, a heating element 2, a temperature sensor 3, a temperature controller 4, and a power supply module 5. The heating element 2 is used to heat the tobacco in the tobacco material containing cavity 1, the temperature sensor 3 is used to detect the temperature of the tobacco in the tobacco material containing cavity 1, the power supply module 5 is used to supply power to the heating element 2, and the temperature controller 4 is used To set the output power provided by the power supply module 5 to the heating element 2, the temperature controller 4 includes a memory 41 and a processor 42, the memory 41 stores instructions, and the processor 42 runs the instructions to execute the temperature control method of the foregoing embodiment.

The memory 41 includes, but is not limited to, disk storage, CD-ROM, optical storage, read-only memory (ROM) or flash memory (flash RAM) and so on. The processor 42 is, for example, a central processing unit (CPU), a micro control unit (MCU), or the like. Of course, the memory 41 and the processor 42 may also be integrated in one element.

Optionally, the heating element 2 includes an infrared coating (indicated by the shaded part in the figure), the infrared coating is located on the outer surface of the tobacco substance containing cavity 1, and the infrared coating passes through an electrode located on its side facing away from the tobacco substance containing cavity 1. 6 is electrically connected to the power supply module 5.

Specifically, the power supply module 5 provides a driving voltage for the infrared coating through the two electrodes 6, so that the infrared coating emits infrared rays. Compared with the resistance heating method, the infrared coating is used to heat the tobacco, not only the heating speed is fast, but the tobacco is heated evenly, and the heating power can be finely controlled.

Optionally, it further includes a barrier layer (not shown) wrapping the infrared coating, and the barrier layer is used to block the infrared rays emitted by the infrared coating from passing through the barrier layer. The function of the barrier layer is to prevent the temperature controller 4 and the power supply module 5 outside the tobacco material containing cavity 1 from being damaged by high temperature. If the barrier layer is specifically used to reflect infrared rays, the barrier layer can also increase the utilization rate of heat.

Optionally, the heating element 2 includes an infrared coating, the infrared coating is located on the inner surface of the tobacco substance containing cavity 1, and the infrared coating is electrically connected to the power supply module 5 through an electrode 6 located on the side facing away from the tobacco substance containing cavity 1. . In this way, the infrared coating is closer to tobacco, and the heating efficiency is higher.

Optionally, it further includes a barrier layer that wraps the tobacco substance containing cavity 1, and the barrier layer is used to block the infrared rays emitted by the infrared coating from passing through the barrier layer. In this way, the arrangement of the barrier layer is more convenient.

The temperature sensor 3 can be arranged in the tobacco substance containing cavity 1 to more accurately test the real-time temperature of the tobacco.

The various embodiments in this application are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

The above are only examples of the application, and are not used to limit the application. For those skilled in the art, this application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the scope of the claims of this application.

Claims

A temperature control method for heating non-burning tobacco appliances, which is characterized in that it comprises:

After the heating of the tobacco is started, after the temperature of the tobacco reaches the third temperature threshold, the temperature of the tobacco is controlled to maintain the first period of time within the range of the third temperature threshold to the fourth temperature threshold, and the third temperature threshold is denoted as T3, the fourth temperature threshold is denoted as T4;

Controlling the cooling of the tobacco and maintaining the temperature of the tobacco within a range from a first temperature threshold to a second temperature threshold, the first temperature threshold is denoted as T1, and the second temperature threshold is denoted as T2;

Among them, satisfy: T4>T3>T2>T1>0℃.
The temperature control method according to claim 1, wherein controlling the temperature of the tobacco to maintain the temperature within a range of a third temperature threshold to a fourth temperature threshold for a first period of time comprises:

Entering the second process, where the output power provided to the heating element is set as the second power to raise the temperature of the tobacco, and the second power is denoted as P2;

When the temperature of the tobacco reaches the fourth temperature threshold, the third process is entered, wherein the output power provided to the heating element is set to the third power to cool the tobacco, and the third power is denoted as P3;

Alternately enter the second process and the third process, and stop when the total duration of the second process and the third process reaches the first time period;

Among them, satisfy: P2>P3≥0W.
The temperature control method according to claim 1, wherein controlling the temperature of the tobacco and maintaining the temperature of the tobacco within a range of a first temperature threshold to a second temperature threshold comprises:

Enter the fourth process, where the output power provided to the heating element is set to the fourth power, so that the tobacco is reduced

When the temperature of the tobacco is lowered to the first temperature threshold, the fifth process is entered, in which the output power provided to the heating element is set to the fifth power to raise the temperature of the tobacco, and the fifth power is recorded as P5;

When the temperature of the tobacco reaches the second temperature threshold, the sixth process is entered, wherein the output power provided to the heating element is set to the sixth power to cool the tobacco, and the sixth power is denoted as P6;

Alternately enter the fifth process and the sixth process;

Among them, satisfy: P5>P6≥0W.
The temperature control method according to claim 3, wherein the fourth power is denoted as P4, which satisfies: 0W≤P4<P6.
The temperature control method according to claim 2, wherein after starting to heat the tobacco, the first process is entered, wherein the output power provided to the heating element is set as the first power, and the first power is recorded as P1, satisfies: P1>P2.
The temperature control method according to claim 1, wherein T1≥260°C.
The temperature control method according to claim 1, wherein the first time length is denoted as TIME1, which satisfies: 12s≤TIME1≤60s.
The temperature control method according to claim 1, wherein 310°C≤T1<T2≤350°C.
The temperature control method according to claim 1, wherein 350°C≤T3<T4≤390.
A heating non-combustion tobacco appliance, comprising a tobacco substance containing cavity, a heating element, a temperature sensor, a temperature controller and a power supply module, the heating element is used to heat the tobacco in the tobacco substance containing cavity, the temperature sensor The temperature controller is used to detect the temperature of the tobacco in the tobacco substance containing cavity, the power supply module is used to supply power to the heating element, and the temperature controller is used to set the output power provided by the power supply module to the heating element. The temperature controller includes a memory and a processor, the memory stores instructions, and the processor runs the instructions to execute the temperature control method according to any one of claims 1-9.
The heat-not-burn tobacco appliance according to claim 10, wherein the heating element comprises an infrared coating, the infrared coating is located on the outer surface of the tobacco substance containing cavity, and the infrared coating is located on The electrode on the side facing away from the tobacco substance containing cavity is electrically connected with the power supply module.
The heat-not-burn tobacco appliance according to claim 11, further comprising a barrier layer wrapping the infrared coating, the barrier layer being used to block the infrared rays emitted by the infrared coating from passing through the barrier layer .
The heat-not-burn tobacco appliance according to claim 10, wherein the heating element comprises an infrared coating, the infrared coating is located on the inner surface of the tobacco substance containing cavity, and the infrared coating is The electrode on the side facing away from the tobacco substance containing cavity is electrically connected with the power supply module.
The heat-not-burn tobacco appliance according to claim 13, further comprising a barrier layer that wraps the tobacco substance containing cavity, and the barrier layer is used to block infrared rays emitted by the infrared coating from passing through the barrier. Floor.