An aerosol generating system for heating tobacco body

Abstract

The present invention discloses an aerosol generating system for heating tobacco, comprising a generator, a release electrode, a heating chamber, and a clamping groove. The generator is electrically connected to the release electrode, which is composited to the annular wall of the heating chamber. The clamping groove is rotatably docked to the bottom port of the heating chamber, allowing a smoking article inserted into the heating chamber to be inserted into the clamping groove. Rotating the clamping groove drives the smoking article to rotate within the inner cavity of the heating chamber, allowing the smoking article to rotate between the release electrodes. The present invention can directly heat the tobacco body, providing uniform heating and effectively improving heating stability.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco smoking, in particular to an aerosol generating system for heating tobacco body. Background Art

[0002] There are a variety of heat-not-burn products on the market, most of which transfer heat from a heating element to the tobacco. The most common method uses electrical resistance heating, which generates Joule heat from the heating element to heat the tobacco. In this heating system, the portion of the tobacco closest to the heating element experiences higher temperatures and a faster heating rate, resulting in uneven heat transfer. This can lead to uneven draw and tobacco sticking to the heating element. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the present invention provides an aerosol generating system for heating the tobacco body, which can directly heat the tobacco body, heat it evenly, and effectively improve the heating stability.

[0004] The technical solution to the problem solved by the present invention is to provide an aerosol generating system for heating a tobacco body, comprising a generator, a release electrode, a heating chamber, and a clamping groove. The generator is electrically connected to the release electrode, and the release electrode is compounded to the annular wall of the heating chamber. The clamping groove is rotatably docked to the bottom port of the heating chamber, so that the smoking article inserted into the heating chamber can be plugged into the clamping groove. When the clamping groove is rotated, the smoking article can be driven to rotate in the inner cavity of the heating chamber, so that the smoking article can rotate between the release electrodes.

[0005] Furthermore, the generator is a radio frequency generator.

[0006] Furthermore, the release electrode includes a first pole needle and a second pole needle, and the first pole needle and the second pole needle are distributed radially opposite to each other on the annular wall of the heating chamber.

[0007] Furthermore, it also includes a control module, a power supply module, and a drive device. The power supply module is electrically connected to the control module, and the control module is electrically connected to the drive device and the generator in sequence.

[0008] Furthermore, the control module also includes a rotation button, which is arranged on the housing and is used to manually control the start / stop of the driving device.

[0009] Furthermore, the bottom of the clamping groove is linked to the output shaft of the driving device, so that the driving device can drive the clamping groove to rotate.

[0010] Furthermore, the top port of the heating chamber is docked with the external port of the shell, so that the smoking article can be inserted into the heating chamber from the external port.

[0011] Furthermore, the external port is equipped with a filter, which includes an airflow block, a suction nozzle, and a fixing part, and the fixing part and the external port are detachably fixed; the airflow block is inserted into the heating chamber facing the upper end surface of the smoking article located in the heating chamber, and the suction nozzle is placed outside the shell.

[0012] Furthermore, the external port is provided with a sliding fixed ring, which is coaxially arranged with the heating chamber and can rotate at the external port; the sliding fixed ring is used to clamp the smoking article and rotate synchronously therewith.

[0013] Furthermore, the clamping groove is an annular groove structure, the clamping groove and the heating chamber are coaxially connected to the bottom port of the heating chamber, and the clamping groove and the heating chamber can rotate relative to each other.

[0014] Furthermore, a clamping protrusion is provided on the inner annular wall of the clamping groove for clamping the smoking article inserted into the clamping groove.

[0015] Furthermore, the heating chamber includes an inner ring plate and an outer ring plate, and the outer ring plate, the inner ring plate and the clamping groove are rotatably connected.

[0016] The beneficial effects of the present invention are:

[0017] The present invention is an aerosol generating system for heating tobacco. The principle is that when the material is placed in high-frequency AC electromagnetic waves, the continuously alternating electric field will cause the polar molecules in the material to turn and rotate, and the molecules will rub and collide with each other to generate heat, thereby increasing the temperature of the material itself.

[0018] The smoking product is inserted into the clamping groove, which is driven by a motor to rotate. This allows the smoking product to maintain relatively uniform power in the applied field for heating, achieving uniform heating of the entire material system. This reduces the requirements for the distribution uniformity of the applied field, has a wide range of applications, and has good practical effects.

[0019] It is preferably used for unevenly distributed external fields to make the heating effect on the tobacco body uniform, which can effectively improve the heating stability.

[0020] During implementation, the port of the present invention can be optimized for cigarettes and cigarette cartridges respectively without changing the internal structure of the system. Preferably, a universal replacement component can be designed to change the applicable object of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In the drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. It is clear that those skilled in the art can derive other drawings from these drawings without inventive effort.

[0022] Figure 1 This is a structural diagram of an aerosol generating system for heating a tobacco body according to an embodiment of the present invention;

[0023] Figure 2 For the embodiment of the present invention Figure 1 A magnified view of the structure at point A;

[0024] Figure 3 This is a top view of the structure of a heating chamber of an aerosol generating system for heating a tobacco body according to an embodiment of the present invention;

[0025] Figure 4 A front cross-sectional view of a clamping groove of an aerosol generating system for heating a tobacco body according to an embodiment of the present invention;

[0026] Figure 5 This is a structural diagram of an aerosol generating system for heating tobacco bodies according to an embodiment of the present invention when applied to cigarettes;

[0027] Figure 6 This is a structural diagram of an aerosol generating system for heating a tobacco body according to an embodiment of the present invention when applied to a cigarette cartridge.

[0028] In the figure: 1. Shell; 2. Generator; 3. Control module; 4. Power supply module; 5. Drive device; 6. Clamping groove; 7. Heating chamber; 8. Smoking article; 9. Filter; 11. First pole needle; 12. Second pole needle; 13. External port; 31. Rotation button; 51. Output shaft; 61. Ring baffle; 62. Ring connection groove; 63. Annular cutting bevel; 64. Clamping protrusion; 65. Mounting part; 71. Inner ring plate; 72. Outer ring plate; 91. Airflow block; 92. Suction nozzle; 93. Fixed part. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] To solve the above problems, the present invention proposes an aerosol generating system for heating tobacco. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 It mainly includes a generator 2, a release electrode, a heating chamber 7, and a clamping groove 6. The generator 2 is electrically connected to the release electrode, and the release electrode is compounded to the annular wall of the heating chamber 7. The clamping groove 6 is rotated and docked to the bottom port of the heating chamber 7, so that the smoking article 8 inserted into the heating chamber 7 can be plugged into the clamping groove 6. When the clamping groove 6 is rotated, the smoking article 8 can be driven to rotate in the inner cavity of the heating chamber 7, so that the smoking article 8 can rotate between the release electrodes.

[0031] It also includes a control module 3, a power supply module 4, and a drive device 5. The power supply module 4 is electrically connected to the control module 3, and the control module 3 is electrically connected to the drive device 5 and the generator 2 in sequence.

[0032] The output shaft 51 of the driving device 5 is docked with the bottom of the clamping groove 6 to form a linkage relationship, so that the driving device 5 can drive the clamping groove 6 to rotate.

[0033] The inner cavity of the heating chamber 7 can be configured as a cylindrical cavity based on the smoking article 8, and the clamping groove 6 can be an annular groove structure, with the clamping groove 6 coaxially connected to the inner cavity of the heating chamber 7. The annular wall of the clamping groove 6 can cooperate with the annular wall of the heating chamber 7. While maintaining a constant height, the clamping groove 6 can rotate about the axis, allowing the smoking article 8 inserted into the clamping groove 6 to rotate with the clamping groove 6. It is understood that the height of the smoking article 8 does not need to change during rotation.

[0034] In an embodiment of the present invention, two pole needles are used as an example for explanation: the release pole may include a first pole needle 11 and a second pole needle 12. The first pole needle 11 and the second pole needle 12 may be distributed on the ring arm of the heating chamber 7 in a radially opposite manner along the heating chamber 7, so that the smoking article 8 can always be between the two pole needles, and when the smoking article 8 rotates, it can generate heat evenly.

[0035] In an embodiment of the present invention, the heating chamber 7 includes an inner ring plate 71 and an outer ring plate 72. As an embodiment, the release electrode can be located in the inner cavity of the heating chamber 7. The release electrode can be composited onto the inner ring plate 71, with the release electrode having an exposed structure in the inner cavity and no exposed structure outside the heating chamber 7. At this time, the inner ring plate 71 can be an electromagnetic shielding material, which can be a metal coating such as silver, aluminum, copper, or nickel. Electromagnetic waves can be reflected on the inner ring wall of the inner ring plate 71, and a conductive polymer coating can be added to the inner ring wall, such as PANI polyaniline, PPY polypyrrole, PTH polythiophene, etc., to absorb electromagnetic waves. No coating is added to the exposed structure of the release electrode.

[0036] As another embodiment, the release electrode can be located outside the heating chamber 7. The release electrode can be composited to the outside of the outer ring plate 72. The heating chamber 7 can be made of non-shielding material. The housing 1 can be provided with a separate chamber to accommodate the heating chamber 7, so that the release electrode and the heating chamber 7 are located together in a relatively independent chamber (without an external connection port). In this case, the inner wall of the independent chamber can be made of electromagnetic shielding material, and the inner wall can also be coated with a conductive polymer.

[0037] Furthermore, when the release electrode is in the external state, the outer ring plate 72 can be divided into regions, and the region combined with the release electrode is defined as an assimilation zone, so as to change the RF release form of the release electrode, such as Figure 3 Optimize RF release as shown in .

[0038] Specifically, an assimilation plate is provided at a relative position on the outer ring plate 72 , and the assimilation plate is combined with the release electrode. The cross-sectional width of the assimilation plate is approximately equal to the diameter of the smoking article 8 .

[0039] Based on the two aforementioned release electrode embodiments, the smoking article 8 is always located at the center between the two electrode needles. Electromagnetic waves are present between the two electrode needles, heating the smoking article 8 located in the heating chamber 7. If the electromagnetic waves are unevenly distributed in space, the heating effect on the stationary smoking article 8 is likely to be uneven. In the system of the present invention, rotating the smoking article 8 at the center allows for uniform heating, improves heating stability, and optimizes the heating effect of the entire system.

[0040] In an embodiment of the present invention, the top port of the heating chamber 7 can be docked with the external port 13 of the housing 1 , so that the smoking article 8 can be inserted into the interior of the heating chamber 7 from the external port 13 .

[0041] In view of the existing forms of the smoking article 8, a corresponding structure can be provided at the external connection port 13, so that the heating system of the present invention can be applicable to various forms of smoking articles.

[0042] When the smoking article 8 is a cigarette, please refer to Figure 5 A sliding fixed ring can be provided at the external connection port 13. The sliding fixed ring and the external connection port 13 can be rotatably connected. The cigarette is inserted into the heating chamber 7 along the inner diameter of the sliding fixed ring, forming a clamping state with the clamping groove 6. The sliding fixed ring can correspond to the filter portion of the cigarette and can have the effect of slightly clamping the filter segment, so that the sliding fixed ring can rotate synchronously with the smoking article 8.

[0043] Based on the heating system of the present invention, the cigarette rotates during heating for a better heating effect, and the rotation can be stopped during puffing. Preferably, the system includes two basic stages: preheating the cigarette and puffing the cigarette. During preheating, the cigarette rotates automatically; after preheating, the rotation stops, indicating that it is ready for puffing. Thereafter, the driving device 5 can be started / stopped by rotating the button 31, thereby controlling the rotation of the cigarette. When it is time to puff, the rotation is manually stopped. After taking a puff, the rotation button 31 can be released to resume automatic rotation.

[0044] After the initial trigger stop, the default state of the rotation button 31 is that the driving device 5 rotates, and the driving device 5 can be randomly stopped by rotating the button 31. The rotation button 31 can be set on the housing 1, and the specific form can be a mechanical button type, touch type, press and slide type, etc.

[0045] When the smoking article 8 is a cigarette cartridge, please refer to Figure 6 The filter 9 can be installed at the external port 13 in a detachable manner. The cigarette cartridge is filled into the heating chamber 7 from the external port 13, forming a clamping state with the clamping groove 6. The filter 9 includes an airflow block 91, a mouthpiece 92, and a fixing portion 93. The fixing portion 93 is detachably fixed to the external port 13. The airflow block 91 is inserted into the heating chamber 7 and faces the upper end surface of the smoking article 8 located therein, pressing the cigarette cartridge downward to form a clamping state with the clamping groove 6. The mouthpiece 92 is located outside the housing 1 to facilitate inhalation by the user.

[0046] Based on the heating system of the present invention, the cigarette cartridge can rotate freely during heating, without affecting the user's puffing experience, allowing continuous puffing without unnecessary operation. Furthermore, a metal shielding mesh can be built into the fixing portion 93 of the filter 9 to shield electromagnetic waves while not affecting the flow of smoke.

[0047] In the embodiment of the present invention, the bottom port of the heating chamber 7 is rotatably docked with the clamping groove 6, so that the clamping groove 6 can clamp the smoking article 8 and rotate.

[0048] Specifically, the clamping groove 6 may include a ring baffle 61, a ring connecting groove 62, a ring cutting bevel 63, a clamping protrusion 64, and a mounting portion 65, wherein the mounting portion 65 is opened on the back side of the bottom wall of the clamping groove 6, and the mounting portion 65 can be used to be installed in conjunction with the output shaft 51 of the driving device 5. The driving device 5 can be located directly below the clamping groove 6, so that the output shaft 51 can directly drive the clamping groove 6 to rotate.

[0049] The front of the bottom wall of the clamping groove 6 is used to receive the smoking article 8. The annular baffle 61 can partially overlap with the heating chamber 7 to form a limited docking. Based on the annular structure, the clamping groove 6 can rotate. Figure 2 、 Figure 4An annular plug-in groove can be set between the outer ring plate 72 and the inner ring plate 71, so that the ring baffle 61 can be plugged into the annular plug-in groove. The ring baffle 61 can open an annular connection groove 62 at the position corresponding to the inner ring plate 71 on the inner side, so that the inner ring plate 71 can be inserted into the annular connection groove 62, forming a mutual plug-in effect.

[0050] The upper end of the annular wall of the insertion groove located on the inner side of the inner ring plate 71 can be provided with an annular bevel 63 to facilitate smooth insertion of the smoking article 8 during downward insertion. A clamping protrusion 64 can be provided on the annular wall below the annular bevel 63 to enhance the clamping effect between the smoking article 8 and the clamping groove 6, allowing the smoking article 8 to rotate synchronously with the clamping groove 6. It will be appreciated that there are various ways to implement the clamping state between the smoking article 8 and the clamping groove 6, with the principle being to achieve synchronous rotation of the smoking article 8 and the clamping groove 6.

[0051] It is understood that the insertion depth of the annular baffle 61 can be less than that of the inner ring plate 71. A retaining rib can be provided between the inner ring wall of the annular baffle 61 and the outer ring wall of the inner ring plate 71 to stabilize the coaxial effect during counter-rotation. The outer ring wall of the annular baffle 61 and the inner ring wall of the outer ring plate 72 can be smoothed.

[0052] It is understandable that, in order to stabilize the driving stability of the driving device 5 , a stabilizing plate / stabilizing frame may be provided to limit the installation of the driving device 5 .

[0053] In an embodiment of the present invention, the generator 2 may be a radio frequency transistor, such as a MOSFET, a GaAsMESFET, a SIT, etc. The electrode needle may be made of one or more metal materials such as graphite, silver, aluminum, nickel, zinc, copper, iron, gold, etc.

[0054] Furthermore, the frequency of the high-frequency alternating electromagnetic wave is between 3 Hz and 3 Thz. Preferably, the frequency of the high-frequency alternating electromagnetic wave is between 1 MHz and 3 GHz. More preferably, the frequency is between 5 MHz and 900 MHz. In a preferred embodiment, the frequency of the high-frequency alternating electromagnetic wave is 27.12 MHz.

[0055] The contents described above can be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present invention.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0057] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific embodiments of the present invention should not be considered to be limited to these descriptions. For those skilled in the art to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. An aerosol generating system for heating tobacco, characterized in that: The invention comprises a generator (2), a control module (3), a power supply module (4), a driving device (5), a release electrode, a heating chamber (7), and a clamping groove (6); the generator (2) is electrically connected to the release electrode, the release electrode is composited to the annular wall of the heating chamber (7), the clamping groove (6) is rotated to dock with the bottom port of the heating chamber (7), so that a smoking article (8) inserted into the heating chamber (7) can be plugged into the clamping groove (6), and when the clamping groove (6) is rotated, the smoking article (8) can be driven to rotate in the inner cavity of the heating chamber (7), so that the smoking article (8) can be rotated between the release electrodes; The release electrode comprises a first pole needle (11) and a second pole needle (12), wherein the first pole needle (11) and the second pole needle (12) are radially oppositely distributed on the annular wall of the heating chamber (7); The power supply module (4) is electrically connected to the control module (3), and the control module (3) is electrically connected to the drive device (5) and the generator (2) in sequence.

2. The aerosol generating system for heating tobacco according to claim 1, characterized in that: The control module (3) further comprises a rotation button (31), which is arranged on the housing (1) and is used to manually control the start / stop of the driving device (5).

3. The aerosol generating system for heating tobacco according to claim 1, characterized in that: The bottom of the clamping groove (6) is linked to the output shaft (51) of the driving device (5), so that the driving device (5) can drive the clamping groove (6) to rotate.

4. The aerosol generating system for heating tobacco according to claim 1, characterized in that: The top port of the heating chamber (7) is docked with the external port (13) of the housing (1), so that the smoking article (8) can be inserted into the heating chamber (7) from the external port (13).

5. The aerosol generating system for heating tobacco according to claim 4, characterized in that: The external port (13) is equipped with a filter (9), and the filter (9) comprises an airflow block (91), a suction nozzle (92), and a fixing portion (93), wherein the fixing portion (93) and the external port (13) are detachably fixed; the airflow block (91) is inserted into the heating chamber (7) and faces the upper end surface of the smoking article (8) located in the heating chamber (7), and the suction nozzle (92) is placed outside the shell (1).

6. The aerosol generating system for heating tobacco according to claim 4, characterized in that: The external port (13) is provided with a sliding fixed ring, which is coaxially arranged with the heating chamber (7) and can rotate at the external port (13); the sliding fixed ring is used to clamp the smoking article (8) and rotate synchronously therewith.

7. The aerosol generating system for heating tobacco according to claim 1, characterized in that: The clamping groove (6) is an annular groove structure, and the clamping groove (6) and the heating chamber (7) are coaxially connected to the bottom port of the heating chamber (7), and the clamping groove (6) and the heating chamber (7) can rotate relative to each other.

8. The aerosol generating system for heating tobacco according to claim 7, characterized in that: A clamping protrusion (64) is provided on the inner ring wall of the clamping groove (6) for clamping the smoking article (8) inserted into the clamping groove (6).

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