WO2024243835A1 - Heat-not-burn cigarette utensil and heating control system therefor - Google Patents

Abstract

A heat-not-burn cigarette utensil and a heating control system therefor. The heat-not-burn cigarette utensil comprises a shell (1), wherein a heating sleeve is arranged inside the shell (1) and comprises a cigarette inlet (21) and a plurality of superconducting heating tubes (22) arranged at equal intervals in sequence in an axial direction of the heating sleeve, a segmented heating area is formed by the plurality of superconducting heating tubes (22), and a heating transition area is formed between two adjacent superconducting heating tubes (22); the heating sleeve is further provided with a heat insulation layer (3) and a superconducting cooling tube (4), wherein the superconducting cooling tube (4) is arranged around the heating sleeve and is close to the cigarette inlet (21), and the heat insulation layer (3) is arranged around the heating sleeve and is positioned at the side of the superconducting cooling tube (4) away from the cigarette inlet (21); and a heating controller (5) is further arranged inside the shell (1), the heating controller (5) being electrically connected to the plurality of superconducting heating tubes (22). The heat-non-burn cigarette utensil has a good segmented heating effect, the heating temperature is uniform so as to make the cigarette fully react, such that the inhalation demand of an inhalation-and-stop user is met, the continuous consumption of the cigarette when inhalation is stopped is avoided, and thus the smoking cost is saved on for the user.

Description

A heat-not-burn smoking device and a heating control system thereof Technical Field

The present invention relates to the technical field of electronic smoking articles, and more particularly to a heat-not-burn smoking article and a heating control system thereof.

Background Art

Different from traditional cigarettes, a smoking method innovatively designed with "heating without burning" has become popular. The "low-temperature cigarettes" produced by the "heating without burning" method can heat the tobacco leaves just enough to emit flavor without igniting the tobacco leaves. This not only avoids excessive pollution of the external environment by smoke, but also produces much lower levels of harmful substances than traditional cigarettes. There are many types of existing heat-not-burn cigarettes, and the heating methods used are also quite diverse, such as charcoal heating, electric heating, etc. At present, most of the heat-not-burn smoking devices on the market use electric heating, which can also control the heating time and temperature more accurately, and users do not need to carry lighters or matches with them like traditional cigarettes, which reduces the fire risk caused by them. The safety of smoking has been significantly improved; however, some heat-not-burn tobacco products on the market currently still have some obvious problems when used due to structural deficiencies. For example, the heating devices or heating devices in existing heat-not-burn tobacco products are mostly set as an integrated structure, such as using a whole piece or a whole roll of heating sheet or a whole heating needle for heating. When a whole piece or a whole roll of heating sheet is used for heating or heating, the cigarette will continue to be heated when the user pauses smoking, which will not only cause waste of cigarettes, but also waste electricity resources to a certain extent; when a whole heating needle is used for heating or heating, the heating temperature will be uneven, which will not only cause insufficient reaction of the tobacco leaves and waste of materials, but also cause users to have a bad user experience.

Technical issues

The technical problem to be solved by the present invention is to provide a heat-not-burn smoking device and a heating control system thereof in view of the above-mentioned defects of the prior art.

Technical Solutions

The technical solution adopted by the present invention to solve its technical problem is:

On the one hand, the present invention provides a heat-not-burn smoking device, comprising a shell, a heating sleeve arranged inside the shell, the heating sleeve comprising a smoke inlet and a plurality of superconducting heating tubes, the plurality of superconducting heating tubes being arranged in sequence and at equal intervals along the axial direction of the heating sleeve, the plurality of superconducting heating tubes forming a segmented heating zone, and a heating transition zone being formed between two adjacent superconducting heating tubes; a heat insulating layer and a superconducting cooling tube are further arranged on the heating sleeve, the superconducting cooling tube is surrounded by the outside of the heating sleeve and close to the smoke inlet, the heat insulating layer is surrounded by the outside of the heating sleeve and is located on a side of the superconducting cooling tube away from the smoke inlet; a heating controller is further arranged inside the shell, the heating controller being electrically connected to the plurality of superconducting heating tubes.

Preferably, the heating sleeve further comprises a sleeve body, and a plurality of the superconducting heating tubes are sleeved on the sleeve body in sequence and at equal intervals.

Preferably, the number of the superconducting heating tubes is at least five, and the at least five superconducting heating tubes are sleeved on the outer peripheral wall of the sleeve body in sequence and at equal intervals.

Preferably, each of the plurality of superconducting heating tubes is provided with a superconducting heating sheet, and the thickness of each of the plurality of superconducting heating sheets is less than 0.05 mm.

Preferably, a water absorbing layer is further provided inside the shell, and the water absorbing layer is located on a side of the heating sleeve away from the smoke inlet.

Preferably, an air flow channel connected to the heating sleeve is also provided inside the water absorbing layer.

Preferably, the smoke inlet is located outside the shell, and the top end surface of the superconducting cooling tube is flush with the top end surface of the shell.

On the other hand, the present invention also provides a heating control system for heat-not-burn smoking devices, comprising a display and button module, a main control module, a temperature control module, a power supply module and multiple heating modules; the main control module, the power supply module and the multiple heating modules are all electrically connected to the temperature control module; the display and button module is electrically connected to the main control module; the multiple heating modules are used for segmented heating; the main control module is used to control the temperature control module to output constant temperature PWM control to the multiple heating modules.

Preferably, the heating modules are provided to be at least five, and at least five of the heating modules are electrically connected to the temperature control module respectively.

Preferably, the display and button module includes a display module and a button module, and the display module and the button module are electrically connected to the main control module respectively.

Beneficial Effects

The beneficial effects of the present invention are as follows: different from the prior art, the heat-not-burn tobacco article of the present invention comprises a shell, a heating sleeve is arranged inside the shell, the heating sleeve comprises a smoke inlet and a plurality of superconducting heating tubes, the plurality of superconducting heating tubes are arranged in sequence and at equal intervals along the axial direction of the heating sleeve to form a segmented heating zone, a heating transition zone is formed between two adjacent superconducting heating tubes, and a heating controller controls one or more of the superconducting heating tubes to heat, thereby achieving a segmented heating effect on the cigarette in the heating sleeve, while ensuring uniform heating temperature and allowing the cigarette to fully react, satisfying the user's smoking needs of inhaling and stopping, avoiding continuous consumption of cigarettes when stopping smoking, saving smoking costs for users, and effectively reducing the electricity consumption of the heat-not-burn tobacco article.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a heat-not-burn smoking device according to an embodiment of the present invention;

FIG2 is a schematic diagram of the structure of a heating control system of a heat-not-burn smoking device according to an embodiment of the present invention;

Names and serial numbers in the figure: shell-1; sleeve body-2; smoke inlet-21; superconducting heating tube-22; insulation layer-3; superconducting cooling tube-4; heating controller-5; water absorption layer-6; air flow channel-61; battery-7; button-8; indicator light-9; display module-101; button module-102; main control module-200; temperature control module-300; battery module-401; charging module-402; external power module-403; heating module-500.

Embodiments of the present invention

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical workers in this field without creative labor belong to the protection scope of the present invention. In addition, the directional terms mentioned in the present invention, such as "top", "bottom", "inside", "outside", etc., are only referenced to the directions of the attached diagrams. The directional terms used are for better and clearer explanation and understanding of the present invention, rather than indicating or implying the orientation that the present invention must have, and therefore cannot be understood as limitations on the present invention.

Embodiment 1

An embodiment of the present invention is shown in Figure 1. A heat-not-burn smoking device comprises a shell 1. A heating sleeve is arranged inside the shell 1. The heating sleeve comprises a smoke inlet 21 and a plurality of superconducting heating tubes 22. The plurality of superconducting heating tubes 22 are arranged in sequence at equal intervals along the axial direction of the heating sleeve. The plurality of superconducting heating tubes 22 form a segmented heating zone, and a heating transition zone is formed between two adjacent superconducting heating tubes 22. A heat insulating layer 3 and a superconducting cooling tube 4 are also arranged on the heating sleeve. The superconducting cooling tube 4 is surrounded by the outside of the heating sleeve and is close to the smoke inlet 21. The heat insulating layer 3 is surrounded by the outside of the heating sleeve and is located on the side of the superconducting cooling tube 4 away from the smoke inlet 21. A heating controller 5 is also arranged inside the shell 1. The heating controller 5 is electrically connected to the plurality of superconducting heating tubes 22.

Specifically, in the embodiment of the present invention as shown in FIG1 , a housing 1 is provided with an upwardly opening accommodating cavity, a heating sleeve is vertically arranged in the accommodating cavity, the heating sleeve is a cylindrical structure and its interior is hollow; a smoke inlet 21 is located outside the housing 1 , for example, located outside the top end of the housing 1 , and a cigarette is inserted into the interior of the heating sleeve from the smoke inlet 21 .

Furthermore, as shown in FIG. 1 , the heating sleeve further comprises a sleeve body 2, and a plurality of superconducting heating tubes 22 are sleeved on the sleeve body 2 at equal intervals in sequence; for example, in the present embodiment, the number of superconducting heating tubes 22 is set to five, and the five superconducting heating tubes 22 are sleeved on the outer wall of the sleeve body 2 at equal intervals in sequence to form a segmented heating structure, thereby achieving a segmented heating effect; the sleeve body 2 is hollow inside and is used to place cigarettes, and when the cigarettes are placed therein, the inner wall thereof is in contact with the cigarettes; when one, three or five superconducting heating tubes 22 are heated, the heat thereof will be transferred to the cigarettes through the sleeve body 2; in order to improve the heat transfer efficiency, the sleeve body 2 is made of a metal heat conductive sheet material, so that the sleeve body 2 has good thermal conductivity, which helps to transfer the heat energy generated by the superconducting heating tubes 22 to the cigarettes, thereby achieving a heating without burning effect on the cigarettes.

Specifically, in the present embodiment, superconducting heating sheets are provided in the five superconducting heating tubes 22, and heating is achieved by providing the superconducting heating sheets. The five superconducting heating sheets are electrically connected to the heating controller respectively to realize segmented heating control. Among them, the thickness of the five superconducting heating sheets is 0.05 mm. The superconducting heating sheets are usually inserted into the superconducting heating tube or attached to the inner wall of the superconducting heating tube to achieve the heating effect.

In other embodiments, the number of the superconducting heating tubes 22 is also five, and the five superconducting heating tubes 22 are attached to the inner wall of the sleeve body 2 at equal intervals in sequence, so as to be directly in contact with the cigarette during heating, thereby helping to improve the heating efficiency.

Furthermore, in an embodiment of the present invention as shown in FIG. 1 , the superconducting cooling tube 4 is sleeved on the upper portion of the outer peripheral wall of the heating sleeve, that is, surrounding the upper portion of the outer peripheral wall of the sleeve body 2, the inner peripheral wall of the superconducting cooling tube 4 is in contact with the upper portion of the outer peripheral wall of the sleeve body 2, and the top end surface of the superconducting cooling tube 4 is flush with the top end surface of the shell 1, which is used to cool the flue gas generated after heating, making it convenient for the user to inhale, so as to achieve a better cooling effect; wherein, the superconducting cooling tube 4 is a superconducting cooling tube made of superconducting cooling sheets, and the thickness of the superconducting cooling sheets can be selected and set according to actual application requirements.

Furthermore, the thermal insulation layer 3 of the embodiment of the present invention adopts an insulation tube, as shown in Figure 1, the insulation tube is sleeved on the middle and lower part of the outer peripheral wall of the heating sleeve, that is, on the side of the superconducting cooling tube 4 away from the smoke inlet 21. The insulation tube surrounds the middle and lower parts of the outer peripheral wall of the sleeve body 2 and the superconducting heating tube 22, and is used to prevent heat loss in the segmented heating zone and the heating transition zone, so as to achieve a better heating without burning effect on the cigarette, and also helps to prevent excessive heat loss inside the sleeve body 2 when the user pauses smoking and stops heating the smoking device. When the user wants to continue smoking and reheat the smoking device, he does not need to wait for the preheating time to smoke directly, thereby improving the convenience of smoking; wherein, the insulation tube is made of nano insulation material and has good high temperature resistance; the thickness of the insulation layer 3 can be selected and set according to actual application requirements.

Furthermore, in the embodiment of the present invention as shown in FIG. 1 , a water absorption layer 6 is further provided inside the shell 1. The water absorption layer 6 is located on the side of the heating sleeve away from the smoke inlet 21, that is, below the bottom end of the heating sleeve, and is mainly used to isolate water vapor. An air flow channel 61 connected to the heating sleeve is also provided inside the water absorption layer 6 to ensure effective air circulation and facilitate smooth suction.

Furthermore, in order to ensure the normal operation of the heat-not-burn smoking device of the embodiment of the present invention, as shown in FIG. 1 , a battery 7 is further provided inside the housing 1 , and the battery 7 is electrically connected to the heating controller 5 to realize the purpose of power supply.

Furthermore, as shown in FIG1 , a button 8 and an indicator light 9 are also provided on the shell body, and both the button 8 and the indicator light 9 are electrically connected to the heating controller 5. The user controls the heating start or heating stop of the heat-not-burn smoking device of the embodiment of the present invention through the button 8; the indicator light 9 is used to display the heating status. When the cigarette is heated to the point where it can be smoked by the user, the indicator light will illuminate the corresponding light, and the user can judge whether the cigarette can be smoked according to the light tube that is lit. The operation method is simple and convenient to use.

Embodiment 2

In order to realize the segmented heating control of the heat-not-burn smoking device of the first embodiment of the present invention, the second embodiment of the present invention further provides a heating control system of the heat-not-burn smoking device, which is applied to the heat-not-burn smoking device in the first embodiment. As shown in FIG. 2 , the heating control system of the heat-not-burn smoking device includes a display and button module, a main control module 200, a temperature control module 300, a power supply module and a plurality of heating modules 500; the main control module 200, the power supply module and the plurality of heating modules 500 are all electrically connected to the temperature control module 300; the display and button module is electrically connected to the main control module 200; the plurality of heating modules 500 are used for segmented heating; the main control module 200 is used to control the temperature control module 300 to output constant temperature PWM (Pulse Width Modulation) control to the plurality of heating modules 500, so as to realize heating control of one or more superconducting heating tubes 22.

Specifically, in the present embodiment, five heating modules 500 are provided, and the five heating modules 500 are electrically connected to the temperature control module 300 respectively; wherein, the heating function of the heating module 500 is realized by the five superconducting heating tubes 22 in the first embodiment; the temperature control module 300 is used to supply power to the main control module 200 and one, three or five heating modules 500 to realize the segmented heating effect of the smoking device; in the present embodiment, the temperature control module 300 is realized by the heating controller 5 in the first embodiment.

Furthermore, as shown in FIG. 2 , the power supply module of the embodiment of the present invention includes a battery module 401, a charging module 402 electrically connected to the battery module 401, and an external power supply module 403 electrically connected to the charging module 402; the external power supply module 403 is connected to the charging module 402 via a plug-in charging connection, and the charging module 402 is electrically connected to the temperature control module 300, and is used to supply power to the temperature control module 300; the battery module 401 is used to supply power to the charging module 402, and the battery module 401 is implemented by the battery 7 in the first embodiment, such as a storage battery; when the battery module 401 is insufficient in power, the charging module 402 is powered by the external power supply module 403, and then the charging module 402 charges the battery module 401, so that when the smoking device is not connected to an external power source, the battery module 401 can provide sufficient power supply for the smoking device.

Furthermore, as shown in FIG. 2 , the display and button module 100 of the embodiment of the present invention includes a display module 101 and a button module 102, and the display module 101 and the button module 102 are electrically connected to the main control module 200 respectively; in this embodiment, the display module 101 is realized by the indicator light 9 in the first embodiment, and the button module 102 is realized by the button 8 in the first embodiment; the main control module 100 adopts a main control MCU, and the main control MCU is arranged in the heating controller 5. The main control module 100 is used to adjust the voltage and monitor the current, and then control the temperature control module 300 to output constant temperature PWM control to multiple heating modules 500, and adjust the duty cycle through PWM control to change the current size to control the temperature to reach the target temperature.

The heat-not-burn smoking device of the first embodiment of the present invention is combined with the heating control system of the second embodiment. Based on the principle of electric heating, the segmented heating of multiple superconducting heating tubes is controlled by a heating controller, which can achieve the segmented heating effect of the cigarette in the heating sleeve. While ensuring the uniform heating temperature and allowing the cigarette to fully react, it meets the user's smoking needs of inhaling and stopping, avoiding the continuous consumption of cigarettes when stopping smoking, saving the smoking cost for the user, and effectively reducing the electricity consumption of the heat-not-burn smoking device; when in use, it is necessary to press the button to start preheating for 10 seconds before putting in the cigarette, and you can inhale after the indicator light changes color. During the inhalation process, release the button to stop heating. If you need to continue inhaling, just press the button directly. At this time, there is no need to wait for preheating, and you can directly inhale until the whole cigarette is heated. In this process, the cigarette is heated more fully without burning, and the heat is not easy to dissipate, meeting the user's needs of inhaling and stopping.

It should be understood that, for ordinary technical workers in the field, improvements or changes can be made based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims (10)

A heat-not-burn smoking device, characterized in that: it comprises a shell, a heating sleeve is arranged inside the shell, the heating sleeve comprises a smoke inlet and a plurality of superconducting heating tubes, the plurality of superconducting heating tubes are arranged in sequence and at equal intervals along the axial direction of the heating sleeve, the plurality of superconducting heating tubes form a segmented heating zone, and a heating transition zone is formed between two adjacent superconducting heating tubes; the heating sleeve is also provided with a heat insulating layer and a superconducting cooling tube, the superconducting cooling tube surrounds the outside of the heating sleeve and is close to the smoke inlet, the heat insulating layer surrounds the outside of the heating sleeve and is located on a side of the superconducting cooling tube away from the smoke inlet; a heating controller is also arranged inside the shell, and the heating controller is electrically connected to the plurality of superconducting heating tubes. The heat-not-burn smoking device according to claim 1 is characterized in that: the heating sleeve also includes a sleeve body, and a plurality of the superconducting heating tubes are sleeved on the sleeve body in sequence and at equal intervals. The heat-not-burn smoking device according to claim 2 is characterized in that: the number of the superconducting heating tubes is at least five, and the at least five superconducting heating tubes are sleeved on the outer peripheral wall of the sleeve body in sequence and at equal intervals. The heat-not-burn smoking device according to claim 1 is characterized in that: a superconducting heating sheet is provided in each of the plurality of superconducting heating tubes, and the thickness of each of the plurality of superconducting heating sheets is less than 0.05 mm. The heat-not-burn smoking device according to claim 1 is characterized in that a water absorbing layer is further provided inside the shell, and the water absorbing layer is located on a side of the heating sleeve away from the smoke inlet. The heat-not-burn smoking article according to claim 5 is characterized in that an air flow channel connected to the heating sleeve is also provided inside the water absorption layer. The heat-not-burn smoking device according to claim 1 is characterized in that: the smoke inlet is located outside the shell, and the top end surface of the superconducting cooling tube is flush with the top end surface of the shell. A heating control system for a heat-not-burn smoking device, characterized in that it includes a display and button module, a main control module, a temperature control module, a power supply module and multiple heating modules; the main control module, the power supply module and the multiple heating modules are all electrically connected to the temperature control module; the display and button module is electrically connected to the main control module; the multiple heating modules are used for segmented heating; the main control module is used to control the temperature control module to output constant temperature PWM control to the multiple heating modules. The heating control system of the heat-not-burn smoking device according to claim 8 is characterized in that: the heating modules are provided in at least five numbers, and at least five of the heating modules are electrically connected to the temperature control modules respectively. The heating control system of the heat-not-burn smoking device according to claim 8 is characterized in that: the display and button module includes a display module and a button module, and the display module and the button module are electrically connected to the main control module respectively.