Heat storage type heating smoking set

By introducing an airflow heating modifier into the heated flue, and utilizing the properties of heat storage materials and thermal expansion materials, the problems of uneven heating and energy waste are solved, achieving uniform heating and energy saving, and avoiding excessively high flue gas temperatures.

CN223694955UActive Publication Date: 2025-12-23CHINA TOBACCO YUNNAN IND
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Patent Information

Application Number
CN202422615035.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-12-23
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

Existing heated smoking devices suffer from uneven heating and significant energy waste. Furthermore, the air is continuously heated during the smoking interval, resulting in excessively high smoke temperature that burns the mouth.

Method used

An airflow heating regulator is adopted, which includes an airflow flow regulation section and an airflow heating section. By utilizing the properties of heat storage materials and thermal expansion materials, the airflow is preheated by the airflow heating section and the airflow flow is regulated during suction to achieve uniform heating and energy saving.

Benefits of technology

It achieves uniform heating of the cigarette, reduces energy waste, avoids excessively high cigarette temperature during smoking intervals, and provides convenience and cleanliness in operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heating smoking sets, in particular to a heat storage type heating smoking set which is characterized in that an airflow heating adjusting and releasing device communicated with a cigarette containing cavity is arranged below the cigarette containing cavity of the heating smoking set; the airflow heating adjusting and releasing device is of a honeycomb body structure provided with a plurality of vent holes and comprises a shell which is of a cavity structure with through holes formed in the two end faces; the airflow heating adjusting part is arranged in the shell and matched with the cavity of the shell, the airflow heating adjusting part comprises an airflow flow adjusting part on the upper portion and an airflow heating part on the lower portion, and a first air hole and a second air hole are formed in the airflow flow adjusting part and the airflow heating part correspondingly; the first air hole and the second air hole communicate with each other and communicate with the through holes in the two end faces of the shell; wherein the airflow flow adjusting part is made of a thermal expansion material, and the airflow heating part is made of a heat storage material. The smoking set not only can uniformly heat the fuming material, but also can achieve the purposes of saving energy and preventing smoke from being too hot.
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Description

Technical Field

[0001] This utility model belongs to the field of heating smoke appliance technology, specifically relating to a heat storage type heating smoke appliance. Background Technology

[0002] Heated tobacco products (HTMP) are a type of novel tobacco technology. They involve heating a cigarette to approximately 350°C using a device, causing it to release smoke. Because there is no combustion, fewer harmful substances are produced, and the technology largely replicates the taste of traditional cigarettes, making it a hot research topic in the industry. Different heating methods exist for this process, with resistance heating or electromagnetic induction heating being commonly used. However, these two technologies often suffer from uneven heat transfer when directly heating the cigarette, hindering proper smoking. Airflow heating technology, on the other hand, involves airflow passing over a heating element. Through convection heat transfer, the airflow temperature rises, and the high-temperature airflow then heats the cigarette core material, producing smoke. This method effectively solves the problem of uneven heat transfer. However, in airflow-heated smoking devices, the heating element is constantly releasing heat during the smoking process. During the intervals when the smoker is not smoking, there is no airflow to exchange heat with the heating element through convection. At this time, the heat is not utilized and the energy is wasted. In addition, because the air around the heating element is constantly heated, the first few puffs of smoke may be too hot and burn the mouth when smoking again.

[0003] This utility model is proposed to solve any of the above problems. Utility Model Content

[0004] This invention addresses the problems of uneven heating and serious energy waste in existing heated smoke devices by providing a heat storage type heated smoke device. It can not only heat the smoke-generating material evenly, but also achieve energy saving. At the same time, it avoids the problem of excessively high smoke temperature caused by continuous heating of the air during the suction interval, which would burn the smoker's mouth.

[0005] The technical solution adopted by this utility model is:

[0006] The first aspect of this utility model provides a heat storage type heating smoking device, wherein an airflow heating regulator 2 is provided below the cigarette holder cavity 1 of the heating smoking device, and the cigarette holder cavity 1 is connected to the airflow heating regulator 2;

[0007] The airflow heating regulator 2 is a honeycomb structure with several vent holes, comprising:

[0008] The housing 21 is a cavity structure with through holes 211 on both ends;

[0009] The airflow heating adjusting part 22 is arranged in the interior of the shell 21 and is matched with the cavity of the shell 21, the airflow heating adjusting part 22 comprises an upper airflow flow adjusting part 221 and a lower airflow heating part 222, the airflow flow adjusting part 221 and the airflow heating part 222 are respectively provided with a first air hole a and a second air hole b, the first air hole a and the second air hole b are communicated with each other and with the through hole 211 of the two end faces of the shell 21; the material of the airflow flow adjusting part 221 is thermal expansion material, and the material of the airflow heating part 222 is heat storage material.

[0010] Preferably, the heating smoking set further comprises a power supply 3, a control mainboard 4 and a smoking set shell 5, a heating indicating lamp 51 connected with the control mainboard 4 and the power supply is arranged on the outer side wall of the smoking set shell 5, the airflow heating adjusting part 2 is connected with the control mainboard 4 and the power supply 3, and the power supply 3, the control mainboard 4, the cigarette accommodating cavity 1 and the airflow heating adjusting part 2 are all installed in the interior of the smoking set shell 5. The heating indicating lamp 51 can also be other types of prompting components, as long as it can provide the smoker with the information that the heating has stopped and the type of cigarette that can be smoked.

[0011] In addition, the smoking set shell 5 further comprises at least one air inlet, so that the external air can smoothly enter the airflow heating adjusting part 2, and the optimal air inlet can be arranged at the lower end of the smoking set shell 5 and is opposite to the position of the air inlet end of the airflow heating part 222, and the airflow heating part 222 and the bottom of the smoking set shell 5 should be left with a certain gap, so as to ensure that the air can normally flow into each air hole of the second air hole b.

[0012] In order to ensure the heating effect of the smoking material, the first air hole a of the airflow flow adjusting part 221 and the second air hole b of the airflow heating part 222 should be firstly connected, and the outer periphery of the connection position of the airflow flow adjusting part 221 and the airflow heating part 222 should be sealed, so as to prevent the hot air from flowing out from the gap between the two.

[0013] Preferably, the airflow heating adjusting part 2 and the cigarette accommodating cavity 1 are detachably connected.

[0014] Preferably, the interior of the shell 21 is further provided with a heat insulation partition 212 extending radially inward, the partition 212 divides the shell 21 into an upper shell section 213 and a lower shell section 214 which are communicated with each other, the airflow flow adjusting part 221 is arranged in the upper shell section 213, and the airflow heating part 222 is arranged in the lower shell section 214.

[0015] The heat insulation partition 212 is arranged to avoid the direct contact between the airflow flow adjusting part 221 and the airflow heating part 222, so as to avoid the problem that the heat is directly transferred from the heat storage material to the thermal expansion material, and the thermal expansion material loses the airflow adjusting function. Therefore, the heat insulation partition 212 can be a sheet structure provided with a plurality of holes or a circular ring structure, as long as the airflow can normally flow in the first air hole a and the second air hole b and the direct contact between the airflow flow adjusting part 221 and the airflow heating part 222 is avoided.

[0016] It should be noted that, in order to avoid the heated air flowing out of the gaps of the components, in addition to the first air hole a and the second air hole b through which the heated air should normally flow, the remaining positions should be sealed to ensure the effect of the airflow heating.

[0017] Preferably, the outer wall of the lower section 214 of the shell is wrapped with a heating coil.

[0018] Preferably, the airflow heating part 222 is uniformly dispersed with electromagnetic induction components, and the electromagnetic induction components are preferably electromagnetic induction particles.

[0019] Preferably, the heat storage material is one of a carbon nanotube / paraffin nanocomposite, a porous metal foam reinforced paraffin, and a carbon nanotube / paraffin composite phase change material. It should be noted that the heat release curves of these heat storage materials are close to linear. Here, the heat release curve close to linear means that when the single puff capacity, the puff duration and the puff interval are consistent, the heat transferred from the heat storage material to the air is close to a fixed value. For example, when the heat storage material is a carbon nanotube / paraffin nanocomposite, the airflow can be uniformly heated to approximately 365°C under the conditions of a puff capacity of 55mL / puff, a puff duration of 3s / puff and a puff interval of 30s.

[0020] The consistent puff amount in the puffing environment refers to the optimal conditions of a puff capacity of 55mL / puff, a puff duration of 3s / puff and a puff interval of 30s.

[0021] Preferably, the thermal expansion material is one of a composite material, a ceramic material and a metal material.

[0022] The specific selection method of the thermal expansion material is: according to the heating curve of the cigarette, the thermal expansion material is selected, for example, the thermal expansion material is expanded graphite composite material when the air flow temperature is about 200 DEG C, and the thermal expansion material is thermal expansion microcapsule, Zr-W, Sc-W controllable thermal expansion composite material, phenolic resin, Al-Si, Al-Zr composite material when the highest heating temperature of the cigarette is other temperature.

[0023] Preferably, the side wall of the air flow heating part 222 is further connected with a temperature sensor for monitoring the temperature of the air flow heating part 222 after heat storage.

[0024] The second aspect of the utility model provides a kind of using method of the novel energy-saving heating smoking set described in the first aspect, the use method is: before starting to smoke, start power supply 3, while heating coil 6 starts to work, electromagnetic induction particles in the air flow heating part 222 heat the air flow heating part, the air flow heating part 222 is heated and stores heat, when temperature sensor detects that the temperature of air flow heating part 222 reaches 215-265 DEG C, control mainboard 4 controls power supply to stop working, heating indicator light 51 is extinguished.

[0025] When starting to smoke, air enters from the bottom of the air flow heating adjusting part 22, when air flows through the air flow heating part 222 from the second air hole b, the heat storage material synchronously exchanges heat with air, so as to heat the air, further, the heated hot air flows through the air flow adjusting part 221 from the first air hole a, at this time, the thermal expansion material contacts with the hot air,

[0026] When the temperature of smoke flowing through the air flow adjusting part 221 is greater than 200-350 DEG C, the air flow adjusting part 221 expands, the first air hole a in the air flow adjusting part 221 becomes smaller, and the smoke flow decreases.

[0027] When the temperature of smoke flowing through the air flow adjusting part 221 is less than 200-350 DEG C, the air flow adjusting part 221 does not deform, and the smoke flow is normal. Wherein, the air flow adjusting part 221 expands when the temperature of smoke is greater than a certain value, which is related to the selection of thermal expansion material of the air flow adjusting part 221, and the selection of thermal expansion material of the air flow adjusting part 221 is finally related to the heating curve of the cigarette, and the specific selection method can refer to the above selection method of thermal expansion material.

[0028] The airflow heating part 222 is made of heat storage material, and when the airflow heating part 222 is heated, the heat storage material stores heat, and when air contacts the heat storage material through the second air hole b, the heat of the heat storage material is transferred to the air, so that the air is heated.

[0029] The airflow flow adjusting part 22 is made of thermal expansion material, and when hot air contacts the thermal expansion material through the first air hole a, the thermal expansion material absorbs part of the heat of the hot air due to the temperature difference between the hot air and the thermal expansion material, so that the temperature of the airflow flow adjusting part 22 increases, and when the temperature reaches the expansion temperature of the thermal expansion material, the volume of the airflow flow adjusting part 22 increases, and due to the limiting effect of the shell 21 on the airflow flow adjusting part 22, the airflow flow adjusting part 22 is pushed inward, and the diameter of the first air hole a decreases, so that the flow of hot air is adjusted.

[0030] The heat storage temperature of the airflow heating part 222 is pre-set to 215-365 DEG C, because different types of cigarettes adapt to different heating temperatures, and enough smoke and suitable flavor substances can be released, but the heating temperature of the existing cigarette is in the range of 200-350 DEG C. Through experiments, it is found that when the heat storage temperature of the airflow heating part 222 is pre-set to be 5-15 DEG C higher than the heating temperature of the cigarette, the airflow heating part 222 can continuously heat the air flowing through the second air hole b to be higher than the heating temperature of the cigarette, and when the airflow temperature is greater than the heating temperature of the cigarette, the airflow flow adjusting part 221 expands, so that the diameter of the first air hole a decreases, thereby reducing the flow of air, and finally reducing the smoke temperature by limiting the airflow. According to this, in order to prevent the airflow flow adjusting part 221 from affecting the suction resistance when adjusting the airflow, the diameter of the first air hole a is designed to be slightly larger than that of the second air hole b, and the diameter difference between the two is 0.05-0.1 mm. At the same time, in order to ensure the heating effect of the airflow heating part 222 on the airflow, and to avoid the influence of the airflow flow adjusting part 221 on the suction resistance when adjusting the airflow, the number of air holes of the first air hole a and the second air hole b, counted as the number of air holes on the cross section of the airflow heating adjusting part 22, should be not less than 54.

[0031] The utility model has the following beneficial effects:

[0032] 1、 the utility model discloses a replace the traditional heating element with airflow heating regulator, and simultaneously solve the problem that the traditional heating element needs to continuously supply heat in the process of suction and needs to consume a large amount of energy, and the air around the heating element is continuously heated in the interval of suction, which causes the problem of scalding mouth by smoke.

[0033] 2. The heating smoking set of the utility model, only need to heat 10-30 seconds of time to the airflow heating part before starting to draw, can make the airflow heating part get preset temperature, and then no longer need to carry out electronic heating and electronic temperature control, in the whole process of subsequent cigarette drawing, the airflow heating part will heat the flue gas by the physical property of the heat storage material, and the airflow flow adjusting part will adjust the flue gas flow by the thermal expansion effect of the thermal expansion material, wherein, the size change of the first air hole size can limit the flue gas flow, so as to get the temperature control purpose.

[0034] 3. The airflow heating release regulator and the cigarette containing cavity of the utility model are detachably connected, for the cigarette with different heating curves, the airflow heating release regulator can be replaced at will, and the airflow channel is also convenient to clean, convenient to operate.

[0035] 4. The first air hole in the airflow flow adjusting part and the second air hole in the airflow heating part can also be spiral or multi-rib structure, so as to increase the contact area of the airflow and the heat storage material and the thermal expansion material. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 Provide an airflow heating release regulator and cigarette containing cavity assembly structure schematic diagram for example 1

[0037] Figure 2 Provide the airflow heating release regulator longitudinal section structure schematic diagram when not working for example 1;

[0038] Figure 3 Provide the shell longitudinal section structure schematic diagram for example 1

[0039] Figure 4 Provide the shell longitudinal section structure schematic diagram for example 1

[0040] Figure 5 Provide the structure schematic diagram of the heat insulation partition for example 1

[0041] Figure 6 Provide the airflow heating release regulator longitudinal section structure schematic diagram when the airflow flow adjusting part expands when working for example 2

[0042] LIST OF REFERENCE NUMERALS:

[0043] 1, cigarette containing cavity;2, airflow heating release regulator;21, shell;211, through hole;212, partition;213, shell upper segment;214, shell lower segment;22, airflow heating adjusting part;221, airflow flow adjusting part;a, first air hole;222, airflow heating part;b- second air hole;3, power supply;4, control mainboard;5, smoking set shell;51, heating indicator lamp, 6, heating coil;A, heating cigarette. Detailed Implementation

[0044] The present invention will be further described below through specific embodiments.

[0045] Example 1

[0046] like Figures 1-2 According to the above, Embodiment 1 provides a heat storage type heating smoking device. An airflow heating regulator 2 is provided below the cigarette holder cavity 1 of the heating smoking device, and the cigarette holder cavity 1 is connected to the airflow heating regulator 2.

[0047] The airflow heating regulator 2 is a honeycomb structure with several vent holes, comprising:

[0048] like Figure 3 The shell 21 shown is a cavity structure with through holes 211 on both ends;

[0049] An airflow heating adjustment unit 22 is arranged inside the housing 21 and adapted to the cavity of the housing 21. The airflow heating adjustment unit 22 includes an upper airflow flow adjustment unit 221 and a lower airflow heating unit 222. The airflow flow adjustment unit 221 and the airflow heating unit 222 are respectively provided with a first air hole a and a second air hole b. The first air hole a and the second air hole b are connected to each other and are connected to the through holes 211 on both ends of the housing 21. The airflow flow adjustment unit 221 is made of expanded graphite composite material, and the airflow heating unit 222 is made of carbon nanotube / paraffin nanocomposite material. In this embodiment, the first air hole a and the second air hole b are both linear.

[0050] like Figure 4 As shown, the heated smoking device also includes a power supply 3, a control board 4, and a smoking device housing 5. A heating indicator light 51 connected to the control board 4 and the power supply is provided on the outer wall of the smoking device housing 5. The airflow heating regulator 2 is connected to the control board 4 and the power supply. The power supply 3, the control board 4, the cigarette holder cavity 1, and the airflow heating regulator 2 are all installed inside the smoking device housing 5. Some components, such as the electromagnetic shield, are already existing technologies and will not be described in detail in this embodiment. The other conventional components of the heated smoking device refer to the existing technology.

[0051] The airflow heating and regulating device 2 is detachably connected to the cigarette holder cavity 1.

[0052] like Figure 3 As shown, the inner wall of the housing 21 is also provided with a radially inwardly extending heat-insulating and insulating partition 212, such as... Figure 5As shown, the heat insulation and insulating separator 212 is specifically annular. The separator 212 divides the housing 21 into an upper section 213 and a lower section 214 that are interconnected. The airflow regulating part 221 is arranged in the upper section of the housing 21, and the airflow heating part 222 is arranged in the lower section of the housing 21.

[0053] The outer wall of the lower section 214 of the housing is wrapped with a heating coil.

[0054] Electromagnetic induction particles are uniformly dispersed inside the airflow heating section 222.

[0055] Example 2

[0056] This embodiment provides a method of using the heat storage type heated smoking device described in the embodiment. The method of use is as follows: Before starting to smoke, insert a heated cigarette A (the suitable heating temperature of cigarette A is 200℃), turn on the power supply 3, and at the same time, the heating coil 6 starts to work. The electromagnetic induction particles inside the airflow heating part 222 heat the airflow heating part. The airflow heating part 222 is heated and stores the heat. After heating for 15 seconds, the temperature sensor detects that the temperature of the airflow heating part 222 has reached 215℃. At this time, the control board 4 controls the power supply to stop working, and the heating indicator light 51 goes out.

[0057] When suction begins, air enters from the bottom of the airflow heating regulating section 22. As the air flows through the airflow heating section 222 via the second air hole b, the heat storage material simultaneously exchanges heat with the air, thereby heating the air. Measurements show that the air temperature is heated to 215°C by the heat storage material. Further, the heated air flows through the first air hole a via the airflow regulating section 221, at which point the thermally expanded material comes into contact with the hot air.

[0058] like Figure 6 As shown, when the temperature of the flue gas flowing through the airflow regulating section 221 is greater than 200°C, the airflow regulating section 221 expands, the diameter of the first air hole a in the airflow regulating section 221 becomes smaller, and the flue gas flow rate decreases.

[0059] When the temperature of the flue gas flowing through the airflow regulating section 221 is less than 350°C, the airflow regulating section 221 does not deform and the flue gas flow is normal.

[0060] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A heat storage type heating smoking set, characterized by, The heating smoking set is provided with an airflow heating and releasing device (2) below a cigarette accommodating cavity (1) of the heating smoking set, and the cigarette accommodating cavity (1) is communicated with the airflow heating and releasing device (2); The airflow heating and releasing device (2) is a honeycomb structure provided with a plurality of air holes, and comprises: A shell (21) is a cavity structure provided with through holes (211) on both ends; An airflow heating and adjusting part (22) is arranged in the cavity of the shell (21) and is matched with the cavity of the shell (21), the airflow heating and adjusting part (22) comprises an airflow flow adjusting part (221) at the top and an airflow heating part (222) at the bottom, the airflow flow adjusting part (221) and the airflow heating part (222) are respectively provided with first air holes (a) and second air holes (b) in the inside, and the first air holes (a) and the second air holes (b) are communicated with each other and with the through holes (211) on both ends of the shell (21).

2. The heat storage type heating smoking set according to claim 1, characterized in that, The heating smoking set further comprises a power supply (3), a control mainboard (4) and a smoking set shell (5), the outer side wall of the smoking set shell (5) is provided with a heating indicator lamp (51) connected with the control mainboard (4) and the power supply, the airflow heating and releasing device (2) is connected with the control mainboard (4) and the power supply, and the power supply (3), the control mainboard (4), the cigarette accommodating cavity (1) and the airflow heating and releasing device (2) are all installed in the inside of the smoking set shell (5).

3. The heat storage type heating smoking set according to claim 1, characterized in that, The airflow heating and releasing device (2) and the cigarette accommodating cavity (1) are detachably connected.

4. The heat storage type heating smoking set according to claim 1, characterized in that, The shell (21) is further provided with a heat insulation partition (212) extending radially inward, the partition (212) divides the shell (21) into an upper shell section (213) and a lower shell section (214) which are communicated with each other, the airflow flow adjusting part (221) is arranged in the upper shell section (213), and the airflow heating part (222) is arranged in the lower shell section (214).

5. The heat storage type heating smoking set according to claim 4, wherein, The outer wall of the lower shell section (214) is wrapped with a heating coil.

6. The heat storage type heating smoking set according to claim 1, wherein The airflow heating part (222) is uniformly dispersed with electromagnetic induction components in the inside.

7. The heat storage type heating smoking set according to claim 1, wherein The airflow heating part (222) is further connected with a temperature sensor on the side wall.