Heated tobacco device having adjustable air path structure
By introducing an adjustable air path structure and a weight sensor into the heated smoking device, the air inlet is automatically adjusted, solving the problem of inconsistent draw resistance caused by cigarette weight deviation and improving the consistency and comfort of the smoking experience.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HUBEI CHINA TOBACCO INDUSTRY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-07
AI Technical Summary
The fixed gas path structure of existing heated smoking devices results in a large deviation in the overall draw resistance between the cigarette and the device, affecting the consistency of the smoking experience, especially the weight deviation caused by manufacturing errors in the cigarette.
Design a heated smoking device with an adjustable air path structure. By detecting the weight of the cigarette through a rotating panel and a weight sensor, the number and size of the air inlets are automatically adjusted to adapt to the user's smoking habits and the state of the cigarette, thereby achieving dynamic adjustment of the air path.
By adjusting the number and size of the air inlets, it adapts to different cigarette weights and smoking habits, improving the consistency and comfort of the smoking experience, ensuring a moderate amount of smoke, and avoiding excessive suction resistance or air dilution.
Smart Images

Figure CN2025099287_07052026_PF_FP_ABST
Abstract
Description
A heated smoke appliance with an adjustable gas path structure
[0001] This application claims priority to Chinese Patent Application No. CN202411521808.4, filed on October 29, 2024, the contents of which are incorporated herein by reference in their entirety. Technical Field
[0002] This invention relates to the field of heated smoking appliances, and in particular to a heated smoking appliance with an adjustable gas path structure. Background Technology
[0003] Existing heated smoking devices generally have a fixed airflow structure. The cigarette is inserted into the device for heating and inhalation, and the overall draw resistance of the cigarette and the device is essentially fixed. Under normal smoking habits, the airflow from outside the cigarette through the device's airflow structure is constant. However, due to manufacturing errors, cigarette weight may vary significantly, resulting in large deviations in the individual draw resistance of the cigarette. When a user smokes a cigarette with a fixed airflow structure, the overall draw resistance of the cigarette and the device may deviate significantly from the standard value, leading to an inconsistent smoking experience. Therefore, there is a need to design a heated smoking device with an airflow structure that allows the user to automatically adjust the airflow based on their smoking habits and the cigarette's condition. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention provides a heated smoking device with an adjustable air passage structure, which can automatically adjust the air intake according to the user's smoking habits and the state of the cigarette.
[0005] The technical solution provided by this invention is as follows:
[0006] A heated smoking appliance with an adjustable air passage structure includes a main body of the appliance and an adjustable air passage mechanism and an air inlet panel disposed above the main body of the appliance. The adjustable air passage mechanism is disposed between the main body of the appliance and the air inlet panel. The air inlet panel has a plurality of air inlets. The adjustable air passage mechanism has a plurality of through holes corresponding to the air inlets and selectively communicating with the air inlets. An annular air passage is provided outside the heating chamber inside the main body of the appliance. The adjustable air passage mechanism is disposed above the annular air passage, and the plurality of through holes on the adjustable air passage mechanism communicate with the annular air passage. The side wall of the heating chamber inside the main body of the appliance has a side wall hole communicating with the annular air passage.
[0007] Preferably, the adjustable air passage mechanism includes a rotating panel and a plurality of fan-shaped slots disposed on the rotating panel. The fan-shaped slots are disposed on the upper surface of the rotating panel, and a plurality of through holes are disposed at the bottom of the plurality of fan-shaped slots. Each fan-shaped slot corresponds to one through hole. The rotating panel is provided with a through hole for inserting a cigarette stick in the middle.
[0008] Preferably, the coverage areas of the several sector slots are different, and the several sector slots are linked together.
[0009] Preferably, the rotating panel is provided with an adjustment button for adjusting the number of through holes and air inlets connected together, and the main body of the smoking device is provided with a rotating groove corresponding to the adjustment button, and the rotating groove is provided with multiple gear positions.
[0010] Preferably, the air intake panel has a second through hole in the middle for inserting a cigarette stick.
[0011] Preferably, a weight sensor is provided at the bottom of the heating chamber inside the main body of the smoking device.
[0012] Preferably, the main body of the smoking device is provided with a mounting groove for installing an adjustable gas path mechanism.
[0013] The present invention has the following advantages over the prior art:
[0014] The heated smoking device with an adjustable air path structure of the present invention determines the individual draw resistance of the cigarette by detecting the weight of the cigarette, and then prompts the user to operate the air path adjustment mechanism so that the number of air holes opened by the heated smoking device is adapted to the individual draw resistance of the cigarette. In this way, the user can select the appropriate number of air holes to open according to the draw resistance of the cigarette, so that the overall draw resistance of the heated smoking device and the cigarette is more suitable and the smoking experience is better. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 is a schematic diagram of the structure of a heating flue with an adjustable gas path in an embodiment of the present invention;
[0017] Figure 2 is a schematic diagram of the adjustable air passage mechanism in an embodiment of the present invention;
[0018] Figure 3 is a schematic diagram of the structure of the main body of the smoking device in an embodiment of the present invention;
[0019] Figure 4 is a schematic diagram of the air intake panel in an embodiment of the present invention.
[0020] Reference numerals: 1. Main body of the smoking device; 11. Heating chamber; 12. Annular air passage; 13. Side wall hole; 14. Weight sensor; 15. Rotating groove; 16. Mounting groove; 2. Adjustable air passage mechanism; 21. Through hole; 22. Rotating panel; 23. Fan-shaped groove; 24. Through hole one; 25. Adjustment button; 3. Air inlet panel; 31. Air inlet; 32. Through hole two. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0022] As shown in Figures 1-4, this embodiment of the invention provides a heated smoking appliance with an adjustable air path structure, including a main body 1, an adjustable air path mechanism 2, and an air inlet panel 3 disposed above the main body 1. The adjustable air path mechanism 2 is disposed between the main body 1 and the air inlet panel 3. The air inlet panel 3 has a plurality of air inlets 31. The adjustable air path mechanism 2 has a plurality of through holes 21 corresponding to the air inlets 31 and selectively communicating with the air inlets 31. The heating chamber 11 inside the main body 1 is provided with an annular air passage 12 outside the heating chamber 11. The adjustable air path mechanism 2 is disposed within the annular air passage 12. Above the channel 12, and several through holes 21 on the adjustable air passage mechanism 2 are connected to the annular air passage 12; the side wall of the heating chamber 11 inside the smoking device body 1 is provided with a side wall hole 13 that is connected to the annular air passage 12. The through holes 21 of the adjustable air passage mechanism 2 can extend into the annular air passage 12. The annular air passage 12 is connected to the heating chamber 11 through several side wall holes 13 on the side of the heating chamber 11, so that external air can enter the heating chamber 11 and flow through the cigarette through the following flow path: air inlet 31 - through hole 21 - annular air passage 12 - side wall hole 13.
[0023] In this embodiment, the adjustable air passage mechanism 2 includes a rotating panel 22 and several sector-shaped slots 23 disposed on the rotating panel 22. The sector-shaped slots 23 are disposed on the upper surface of the rotating panel 22, and several through holes 21 are disposed at the bottom of the sector-shaped slots 23, facilitating the entry of external air through the through holes 21 at the bottom of the sector-shaped slots 23. One sector-shaped slot 23 corresponds to one through hole 21. A through hole 24 for inserting a cigarette is provided in the middle of the rotating panel 22. The coverage areas of the several sector-shaped slots 23 are different, and the several sector-shaped slots 23 are linked. The rotating panel 22 is provided with an adjustment button 25 for adjusting the number of through holes 21 connected to air inlets 31. The main body 1 of the smoking device is provided with a rotating groove 15 corresponding to the adjustment button 25. The rotating groove 15 is provided with multiple positions. When the adjustment button 25 is fixed in different positions, the multiple sector-shaped slots 23 can connect to different numbers of air inlets 31. By rotating the adjustment button 25, the adjustable air passage mechanism 3 is rotated, which adjusts the corresponding position of the air inlet 31 and the fan-shaped groove 23, thereby connecting different air inlets 31 and allowing the air intake of the smoking device to be adjusted.
[0024] In this embodiment, the air intake panel 3 has a second through hole 32 for inserting a cigarette in the middle, and several air intake holes 31 are evenly distributed around the second through hole 32, so that the airflow enters the cigarette more evenly.
[0025] In this embodiment, a weight sensor 14 is provided at the bottom of the heating chamber inside the smoking device body 1. The smoking device body 1 is provided with a mounting slot 16 for installing the adjustable gas path mechanism 2. The smoking device body 1 includes a power supply unit, a control unit, a heating unit, and a display unit; the above structures can be structures already disclosed in the prior art that perform related functions.
[0026] In this embodiment, there are three air inlets 31 and three fan-shaped slots 23. The three air inlets 31 are labeled A, B and C respectively. The three air inlets 31 are evenly distributed around the through hole 32. The three fan-shaped slots 23 are used to control the connection of air inlets 31 A, B and C respectively. The three fan-shaped slots 23 are labeled a, b and c respectively. a has the largest coverage area, b has the second largest coverage area, and c has the smallest coverage area.
[0027] In the standard state (position I), a is connected to A, b is connected to B, and c is offset from C, making A and B connected and C disconnected. At this time, there are two air intake holes 31, and the air intake of the device is at the standard flow rate. By rotating the adjustment button 25 clockwise to position II, since a has the largest coverage area, a is still connected to A, b is still connected to B, and c is connected to C. At this time, there are three air intake holes 31, and the air intake of the device is greater than the standard flow rate. Rotating the adjustment button 25 clockwise again from position II to position III, a is still connected to A, b is offset from B due to the second rotation of the adjustment button 25, and c is offset from C. At this time, there is only one air intake hole 31, and the air intake of the device is less than the standard flow rate. Therefore, users can select different air intake positions by adjusting the button 25 according to the cigarette's condition and smoking habits, allowing for a better smoking experience.
[0028] In this embodiment, since the draw resistance of the cigarette is positively correlated with its weight, the individual draw resistance is higher when the cigarette weight is greater than the standard weight, and lower when the cigarette weight is less than the standard weight. Therefore, a weight sensor 14 is installed at the bottom of the heating chamber 11. When the cigarette is inserted into the bottom of the heating chamber 11, its weight can be detected. The control system of the smoking device body 1 prompts the user to operate the adjustable air path mechanism 2 based on the detected cigarette weight.
[0029] The specific control logic is as follows:
[0030] (1) When the detected weight of the cigarette is within the standard range, the main body 1 of the smoking device prompts the user to use the standard air path gear I through the display unit, without the need to operate the adjustable air path mechanism 2. At this time, the number of air inlets 31 that can be inhaled on the air inlet panel is two.
[0031] (2) When the weight of the cigarette exceeds the standard weight, the individual draw resistance of the cigarette is relatively large. If the standard air passage structure is used for vaping, the overall draw resistance may be large, the vaping resistance may be large, the amount of smoke may be small, and the vaping experience may be poor. At this time, the display unit of the main body of the smoking device 1 prompts the user to rotate the adjustable air passage mechanism 2 to the second position. At this time, the user can rotate the adjustable air passage mechanism 2 to the specified second position. At this time, the number of air inlets 31 that can be aired on the air inlet panel 3 is three, the flow of external air into the heating chamber 11 is greater, the overall draw resistance of the smoking device and the cigarette is more suitable, the vaping is smoother, and the amount of smoke is full.
[0032] (3) When the weight of the cigarette is less than the standard weight, the individual draw resistance of the cigarette is relatively small. If the standard air passage structure is used for vaping, the overall draw resistance may be small, there may be too much air during vaping, the smoke may be severely diluted, the amount of smoke may be small, and the vaping experience may be poor. At this time, the display unit of the main body 1 of the smoking device prompts the user to rotate the adjustable air passage mechanism 2 to the third position. At this time, the user can rotate the adjustable air passage mechanism 2 to the specified position III. At this time, the air inlet 31 of the air inlet panel 3 is covered more, and the number of air inlet 31 that can be aired is one. The flow rate of external air into the heating chamber 11 is smaller, the overall draw resistance of the smoking device and the cigarette is more suitable, and the amount of smoke is full.
[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A heated smoke appliance with an adjustable gas path structure, characterized in that, The device includes a smoking body (1) and an adjustable air passage mechanism (2) and an air inlet panel (3) disposed above the smoking body (1). The adjustable air passage mechanism (2) is disposed between the smoking body (1) and the air inlet panel (3). The air inlet panel (3) is provided with a plurality of air inlets (31). The adjustable air passage mechanism (2) is provided with a plurality of through holes (21) corresponding to the air inlets (31) and selectively communicating with the air inlets (31). The heating chamber (11) inside the smoking body (1) is provided with an annular air passage (12). The adjustable air passage mechanism (2) is disposed above the annular air passage (12), and the plurality of through holes (21) on the adjustable air passage mechanism (2) are communicating with the annular air passage (12). The side wall of the heating chamber (11) inside the smoking body (1) is provided with a side wall hole (13) communicating with the annular air passage (12).
2. The heating appliance with an adjustable gas path structure according to claim 1, characterized in that, The adjustable air passage mechanism (2) includes a rotating panel (22) and a plurality of fan-shaped slots (23) disposed on the rotating panel (22). The fan-shaped slots (23) are disposed on the upper surface of the rotating panel (22), and a plurality of through holes (21) are disposed at the bottom of the plurality of fan-shaped slots (23). One fan-shaped slot (23) corresponds to one through hole (21). The rotating panel (22) is provided with a through hole (24) for inserting a cigarette stick in the middle.
3. The heating smoke appliance with an adjustable gas path structure according to claim 2, characterized in that, The coverage areas of the various sector grooves (23) are different, and the various sector grooves (23) are linked together.
4. The heating smoke appliance with an adjustable gas path structure according to claim 2, characterized in that, The rotating panel (22) is provided with an adjustment button (25) for adjusting the number of through holes (21) and air inlets (31) connected. The main body (1) of the smoking device is provided with a rotating groove (15) corresponding to the adjustment button (25). The rotating groove (15) is provided with multiple gear positions.
5. The heating appliance with an adjustable gas path structure according to any one of claims 1-4, characterized in that, The air intake panel (3) is provided with a second through hole (32) for inserting a cigarette holder in the middle.
6. The heating appliance with an adjustable gas path structure according to any one of claims 1-4, characterized in that, A weight sensor (14) is provided at the bottom of the heating chamber (11) inside the main body (1) of the smoking device.
7. The heating appliance with an adjustable gas path structure according to any one of claims 1-4, characterized in that, The main body (1) of the smoking device is provided with a mounting groove (16) for installing the adjustable gas path mechanism (2).
Citation Information
Patent Citations
Cigarette product heating device with adjustable suction resistance
CN113679112A
Heating smoking set with adjustable gas circuit structure
CN119073662A
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