Suction nozzle and heating non-combustion device
By designing a nozzle with a temperature gradient, the problem of high usage cost of aerosol products in heated non-combustible devices is solved, enabling the nozzle to be reused and its lifespan extended, thus reducing the overall cost of the device.
Patent Information
- Application Number
- CN202423091629.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Among existing heated non-combustible devices, the use cost of aerosol products is relatively high, mainly because a long cooling section and filtration section are required to avoid scalding the mouth with aerosol, resulting in aerosol products that are longer in size and have higher usage costs.
Design a suction nozzle comprising a first part and a second part. The heat distortion temperature of the first part is greater than 200℃, and the heat distortion temperature of the second part is less than that of the first part. The suction nozzle has an air outlet channel for aerosol discharge. The first part and the second part can be detachably connected or integrally molded. The materials selected are Teflon, PEEK, PI, etc. The aerosol temperature gradient design in the air outlet channel is designed to achieve cooling and filtration functions. The suction nozzle is reusable.
The design of the suction nozzle reduces user operating costs and extends its service life, simplifies the structure of the heated non-combustible device, and lowers the overall cost.
Smart Images
Figure CN223730735U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of heat-not-burn, in particular to a mouthpiece and a heat-not-burn device. BACKGROUND
[0002] The heat-not-burn system comprises a heat-not-burn device and an aerosol product, the heat-not-burn device usually has a receiving cavity for the aerosol product to be inserted, and the aerosol product usually has an aerosol substrate section, a temperature-reducing section and a filter section arranged in sequence in the length direction thereof.
[0003] In use, the aerosol product is inserted into the receiving cavity, the user's lips wrap around the filter section of the aerosol product, and the aerosol substrate section of the aerosol product generates aerosol after being heated in the receiving cavity, which can be inhaled by the user along the temperature-reducing section from the filter section. In order to avoid the aerosol burning the mouth, a relatively long temperature-reducing section and filter section need to be provided in the aerosol product, which will result in a relatively long size of the aerosol product, and the aerosol product is discarded after use, which will result in a relatively high use cost of the user. CONTENT OF THE UTILITY MODEL
[0004] The present application provides a mouthpiece and a heat-not-burn device to solve the technical problem of a high use cost of the user.
[0005] According to a first aspect, in an embodiment, a mouthpiece is provided for use in a heat-not-burn device, the mouthpiece having a first portion and a second portion arranged in an extension direction thereof;
[0006] The mouthpiece further has an air outlet channel in communication with the first portion and the second portion in the extension direction thereof, the air outlet channel being used for discharging the aerosol generated in the heat-not-burn device, the air outlet channel having an air inlet end and an air outlet end, the air inlet end being located on the first portion, and the air outlet end being located on the second portion;
[0007] The heat distortion temperature of the first portion is greater than 200℃, and the heat distortion temperature of the second portion is less than the heat distortion temperature of the first portion.
[0008] In an optional embodiment, the first portion and the second portion are detachably connected or integrally formed.
[0009] In an optional embodiment, the material of the first portion is Teflon, PEEK or PI.
[0010] In an optional embodiment, the material of the second portion is silica gel, PP, PCTG, PC or POM.
[0011] In an alternative embodiment, the mouthpiece has an air inlet and an air passage, the air inlet communicates an exterior space of the mouthpiece with the air passage, the air passage is configured to communicate with a heating chamber of a heating body when the mouthpiece is engaged with the heating body, to supply air to the heating chamber.
[0012] In an alternative embodiment, the air inlet and the air passage are both located in the first portion, the second portion has an outer segment configured to be wrapped by a user's lip, and the air outlet is located in the outer segment.
[0013] In an alternative embodiment, the air passage is arranged to surround the air outlet passage, the first portion is provided with a plurality of air outlets downstream of the air passage in an air inlet direction of an air flow, and adjacent two of the air outlets are arranged to be spaced apart in a circumferential direction surrounding the air outlet passage, the air outlets are configured to communicate with the heating chamber through a gas inlet of the heating body when the mouthpiece is engaged with the heating body.
[0014] In an alternative embodiment, the air passage has a uniform cross-sectional dimension in a direction perpendicular to an extension direction of the mouthpiece, and the air outlet passage has a reduced diameter segment, and in the extension direction of the mouthpiece, a passage wall of the air passage and a passage wall of the air outlet passage enclose a closed cavity at the reduced diameter segment.
[0015] According to a second aspect, in an embodiment, there is provided a heated- but-not-burned device, comprising a heating body and a mouthpiece as described in any of the above embodiments, the heating body has a heating chamber for containing a solid aerosol substrate, the mouthpiece is detachably engageable with the heating body, and the air inlet is configured to communicate with the heating chamber when the mouthpiece is engaged with the heating body.
[0016] In an alternative embodiment, the heating body has a gas inlet and a communication passage, the gas inlet communicates with the communication passage; the heating body has a honeycomb-shaped heating assembly, and a gas passage of the honeycomb-shaped heating assembly communicates the communication passage with the heating chamber, and the communication passage is arranged to surround the honeycomb-shaped heating assembly.
[0017] According to the above-mentioned embodiments, the mouthpiece is used in the heat-not-burn device, the mouthpiece has a first part and a second part arranged in the extension direction of the mouthpiece; the mouthpiece further has an air outlet channel in communication with the first part and the second part in the extension direction of the mouthpiece, the air outlet channel is used for discharging the aerosol generated in the heat-not-burn device, the air outlet channel has an air inlet end and an air outlet end, the air inlet end is located on the first part, and the air outlet end is located on the second part; the heat distortion temperature of the first part is greater than 200℃, and the heat distortion temperature of the second part is less than the heat distortion temperature of the first part, so that the mouthpiece can be repeatedly used in the heat-not-burn device, which helps to reduce the use cost of the user, and the heat distortion temperature of the first part located at the air inlet end is greater than the heat distortion temperature of the second part located at the air outlet end, so that the mouthpiece is not easy to be scalded, which helps to improve the service life of the mouthpiece. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 Structure schematic diagram of a heat-not-burn device for an embodiment;
[0019] Figure 2 Structure schematic diagram of a heat-not-burn device for an embodiment at the positions of the mouthpiece and the heating main body.
[0020] In the figure: 1, first shell; 2, second shell; 3, mouthpiece; 31, first part; 32, second part; 321, outer connecting section; 33, air outlet channel; 331, reduced diameter section; 332, air outlet end; 333, air inlet end; 34, closed cavity; 35, air inlet; 36, air inlet channel; 361, air outlet; 4, heating main body; 41, mounting cylinder; 42, heating cylinder; 43, gas inlet; 44, communication air duct; 45, heat exchange member; 46, heat exchange air duct; 47, heating body; 48, heating cavity; 49, solid aerosol substrate. DETAILED DESCRIPTION
[0021] The application will be described in further detail below with specific embodiments and with reference to the drawings. In different embodiments, similar elements are denoted by associated similar element reference numerals. In the following embodiments, many details are described in order to make the application better understood. However, a person skilled in the art can easily recognize that, in different cases, some features can be omitted, or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification, in order to avoid the core part of the application being overwhelmed by too much description, and it is not necessary for a person skilled in the art to understand the related operations in detail according to the description in the specification and the general technical knowledge in the art.
[0022] In addition, features described in the specification, operations or characteristics can be combined in any appropriate manner to form various embodiments, and the steps involved in each embodiment can be sequentially exchanged or adjusted in a manner apparent to those skilled in the art. Therefore, the description and drawings are only for the purpose of clearly describing one embodiment, and do not mean the necessary composition and / or order.
[0023] The serial numbers of the components described herein, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequential or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connections (couplings) unless otherwise specified.
[0024] The embodiment of the present application discloses a mouthpiece, which is applied to a heat-not-burn device, and can be repeatedly used, can avoid setting an external segment or a filter segment wrapped by a user's lips on an aerosol product, and can reduce the use cost of the user.
[0025] The embodiment of the present application discloses a mouthpiece 3, please refer to Figure 2 , which has a first part 31 and a second part 32 arranged in the extension direction thereof, and also has an air outlet channel 33 communicating the first part 31 and the second part 32 in the extension direction thereof, that is, the first part 31 and the second part 32 of the mouthpiece 3 are arranged in the extension direction of the air outlet channel 33, the air outlet channel 33 is used for discharging the aerosol generated in the heat-not-burn device, the air outlet channel 33 has an air outlet end 332 and an air inlet end 333, the air inlet end 333 is located on the first part 31, and the air outlet end 332 is located on the second part 32, the aerosol generated in the heat-not-burn device can enter the air outlet channel 33 of the second part 32 from the air outlet channel 33 of the first part 31, and be discharged from the air outlet end 332 of the second part 32, and in the process of discharging the aerosol, the aerosol can be cooled through the air outlet channel 33 of the first part 31 and the second part 32, so that the cooling segment can be avoided to be set on the aerosol product, and the mouthpiece 3 can be repeatedly used, and the use cost of the user can be reduced.
[0026] In the mouthpiece 3 disclosed by the embodiment of the present application, in the air outlet channel 33, the first part 31 is located upstream of the second part 32 in the direction of the aerosol discharge, and in the process of discharging the aerosol, the temperature of the aerosol in the air outlet channel 33 of the first part 31 is higher than that of the aerosol in the air outlet channel 33 of the second part 32, which requires a higher heat distortion temperature for the first part 31, and limits the heat distortion temperature of the first part 31 to be greater than 200℃, and the heat distortion temperature of the second part 32 is less than that of the first part 31, so that the probability of scorching or heat distortion of the mouthpiece 3 can be reduced, the cost of the mouthpiece 3 can be reduced, and the service life of the mouthpiece 3 can be improved.
[0027] In some embodiments, referring to Figure 2 , the first part 31 of the mouthpiece 3 can be made of a material different from that of the second part 32. The first part 31 can be made of Teflon, PEEK (Polyetheretherketone), or PI (Polyimide), and the second part 32 can be made of silicone, PEI (Polyetherimide), PCTG (Polyethylene Terephthalate Glycol), PC (Polycarbonate), or POM (Polyformaldehyde).
[0028] In some embodiments, the first part 31 can be integrally formed with the second part 32. Referring to Figure 2 , the first part 31 can be made of Teflon, and the second part 32 can be made of silicone, or the first part 31 can be made of PEEK, and the second part 32 can be made of PCTG, or the first part 31 and the second part 32 can be made of other materials that can be integrally formed by two-color injection molding.
[0029] In other embodiments, the first part 31 can be detachably connected to the second part 32. The first part 31 can be detachably connected to the second part 32 by screwing or clamping. The materials of the first part 31 and the second part 32 are not limited by the above-mentioned materials, as long as the materials of the first part 31 and the second part 32 satisfy the condition that the heat distortion temperature of the first part 31 is greater than 200°C, and the heat distortion temperature of the second part 32 is less than that of the first part 31.
[0030] In some embodiments, referring to Figure 2 , the mouthpiece 3 can be detachably connected to the entire heat-not-burn device. After the mouthpiece 3 is connected to the heat-not-burn device, the mouthpiece 3 can be sealingly engaged with the heating body 4 in the heat-not-burn device, so that the air inlet end 333 of the air outlet passage 33 of the mouthpiece 3 communicates with the heating cavity 48 of the heating body 4. The aerosol generated in the heating cavity 48 of the heating body 4 can be discharged from the air outlet end 332 of the air outlet passage 33 of the mouthpiece 3, and the user's lips can be wrapped around the position of the mouthpiece 3 close to the air outlet end 332 to inhale the aerosol discharged from the air outlet end 332.
[0031] In some embodiments, referring to Figure 2The air inlet 35 and the air inlet channel 36 are integrated on the mouthpiece 3, which can avoid arranging the air inlet and at least part of the air inlet channel on the heating body 4 of the heat-not-burn device, can simplify the structure of other components of the heat-not-burn device except the mouthpiece 3, and the mouthpiece 3 can be reused, that is, the air inlet 35 and the air inlet channel 36 can be reused, which is helpful to reduce the cost of the entire heat-not-burn device.
[0032] Of course, in other embodiments, the air inlet 35 and the air inlet channel 36 can not be arranged in the mouthpiece 3, which is helpful to simplify the structure of the mouthpiece 3.
[0033] In some embodiments in which the air inlet 35 and the air inlet channel 36 are arranged in the mouthpiece 3, please continue to refer to Figure 2 The air inlet 35 and the air inlet channel 36 are both located on the first part 31, the extending direction of the air inlet channel 36 is the same as the extending direction of the mouthpiece 3, the air inlet 35 is located at the end of the air inlet channel 36 facing the second part 32 in the extending direction of the air inlet channel 36, and the second part 32 has an outer segment 321 for wrapping the lips of a user. The air outlet end 332 of the air outlet channel 33 is located on the outer segment 321, so as to facilitate the user to inhale the aerosol discharged from the air outlet end 332.
[0034] Of course, in other embodiments, the air inlet 35, part of the outer segment 321 and the air inlet channel 36 can be arranged on the first part 31, and the other part of the outer segment 321 can be arranged on the second part 32; or the air inlet 35, the outer segment 321 and part of the air inlet channel 36 can be arranged on the second part 32, and the part of the air inlet channel 36 away from the air inlet 35 can be arranged on the first part 31.
[0035] In some embodiments, please continue to refer to Figure 2 The cross-sectional outer contour shape of the mouthpiece 3 perpendicular to the extending direction thereof is circular, the outer peripheral surface of the mouthpiece 3 is a cylindrical surface, the air inlet 35 is located on the outer peripheral surface of the mouthpiece 3, the air inlet channel 36 is arranged around the air outlet channel 33, the air inlet 35 has a plurality of air inlets 35, and the plurality of air inlets 35 are arranged at intervals in the circumferential direction around the air outlet channel 33, which is helpful to realize uniform air intake of the heating cavity 48 in the circumferential direction around the air outlet channel 33.
[0036] In an embodiment, the first portion 31 is provided with a plurality of air outlets 361 downstream of the air inlet channel 36 in the air inlet direction of the air inlet flow, and adjacent two air outlets 361 are arranged at intervals in the circumferential direction around the air outlet channel 33, and the air outlet 361 is used to communicate with the heating cavity 48 through the gas inlet 43 of the heating body 4 when the mouthpiece 3 is in sealing engagement with the heating body 4, so as to ensure uniform air inlet of the heating cavity 48.
[0037] Of course, in other embodiments, the air inlet channel 36 can also be arranged side by side with the air outlet channel 33 in a plane perpendicular to the extension direction of the air inlet channel 36.
[0038] In some embodiments, please continue to refer to Figure 2 The air outlet channel 33 has a reduced diameter section 331 on the first portion 31, which helps to increase the aerosol discharge rate and avoid aerosol condensation. The part of the air outlet channel with a larger cross-sectional size than the reduced diameter section 331 can achieve collection and buffering of the aerosol to improve the aerosol concentration and improve the user's satisfaction. In the extension direction of the air inlet channel 36, the channel wall of the air inlet channel 36 and the channel wall of the air outlet channel 33 enclose the closed cavity 34 at the reduced diameter section 331, and the cross-sectional size of the air inlet channel 36 is equal at all places in the vertical extension direction thereof, so as to avoid the increase of the suction resistance caused by the arrangement of the reduced diameter section 331. The air inlet channel 36 with equal cross-sectional size at all places helps to reduce the suction resistance and improve the user's experience, and the closed cavity 34 formed by the air inlet channel 36 and the air outlet channel 33 can also be used to cool the aerosol in the air outlet channel 33 to avoid the aerosol burning the mouth.
[0039] Of course, in other embodiments, the air inlet channel 36 and the air outlet channel 33 can also share the channel wall at the reduced diameter section 331, and the cross-sectional size of the air inlet channel 36 is equal at all places, which also helps to reduce the suction resistance and improve the user's experience.
[0040] Or in other embodiments, the air inlet channel 36 and the air outlet channel 33 share the channel wall at the reduced diameter section 331, and the cross-sectional size of the air inlet channel 36 gradually increases and then gradually decreases in the direction from the air inlet 35 to the air outlet 361, so as to increase the air inlet amount of the air inlet channel 36 and meet the air inlet demand.
[0041] The present application also provides a heating non-combustion device, please refer to Figure 1 and Figure 2The heat-not-burn device comprises the heating body 4 and the above-mentioned any embodiment of the mouthpiece 3, the heating body 4 has a heating cavity 48 containing a solid aerosol substrate 49, the solid aerosol substrate 49 can comprise a paper tube and a filamentous or granular solid smoking material wrapped in the paper tube, the filamentous or granular solid can generate aerosol after being heated, and the smoking material can be tobacco material or aromatic plants; or the solid aerosol substrate 49 does not contain a paper tube wrapped around the periphery, and only comprises a sheet-shaped solid or a columnar shaped body in a rolled arrangement, which can generate aerosol after being heated. The solid aerosol substrate 49 is not provided with a temperature-reducing section and a filtering section for the aerosol to pass through, which helps to reduce the cost of the aerosol product, and the air outlet channel 33 is arranged on the mouthpiece 3, and the structure for realizing aerosol temperature reduction and filtration can also be arranged on the mouthpiece 3, and the mouthpiece 3 can be reused, which can reduce the use cost of the user.
[0042] In some embodiments, in order to meet the requirement that the mouthpiece 3 can be adapted to different heat-not-burn devices, the mouthpiece 3 and the heating body 4 are detachably connected, and the mouthpiece 3 and the heating body 4 can be detachably connected by thread connection or buckle connection, and in the embodiment of the buckle connection, the mouthpiece 3 and the heating body 4 are also sealed and matched by a sealing element.
[0043] In some embodiments, please refer to Figure 2 The heat-not-burn device can also comprise a first shell 1 and a second shell 2, the first shell 1 and the second shell 2 are rotatably assembled together by a hinge shaft, and the mouthpiece 3 and the heating body 4 are detachably connected by the first shell 1 and the second shell 2.
[0044] The mouthpiece 3 is mounted on the first shell 1, and the second part 32 of the mouthpiece 3 and the local part of the first part 31 provided with the air inlet 35 are exposed to the first shell 1, or only the second part 32 of the mouthpiece 3 is exposed to the first shell 1, and the first shell 1 is provided with a through hole in communication with the air inlet 35 on the first part 31, so that external air can enter the air inlet channel 36 of the mouthpiece 3 along the through hole and the air inlet 35. The heating body 4 is mounted on the second shell 2, and the second shell 2 is further provided with a circuit board (not shown in the figure) and a battery core (not shown in the figure) electrically connected with the heating body 4, and the heating body 4 is arranged apart from the circuit board and the battery core to reduce the heat transferred from the heating body 4 to the circuit board and the battery core.
[0045] The first shell 1 and the second shell 2 have a use state in which the first shell 1 and the second shell 2 are sealed and attached to each other, and have an installation state in which the first shell 1 and the second shell 2 are separated from each other. When the first shell 1 and the second shell 2 are in the use state, the mouthpiece 3 is sealed and attached to the heating main body 4, the gas inlet end 333 of the air outlet channel 33 is in communication with the heating cavity 48 of the heating main body 4, and the aerosol generated in the heating cavity 48 can be inhaled by a user along the air outlet channel 33. When the first shell 1 and the second shell 2 are in the installation state, the mouthpiece 3 is separated from the heating main body 4, and the cavity opening of the heating cavity 48 on the heating main body 4 is exposed, so that the user can take out the used solid aerosol substrate 49 or put the solid aerosol substrate 49 into the heating cavity 48.
[0046] In some embodiments, please continue to refer to Figure 2 The heating main body 4 has a gas inlet 43 and a communication channel 44, the gas inlet 43 is in communication with the communication channel 44, the heating main body 4 has a honeycomb-shaped heating assembly, the air channel of the honeycomb-shaped heating assembly is in communication with the communication channel 44 and the heating cavity 48, and the air outlet 361 of the air inlet channel 36 on the mouthpiece 3 can be in communication with the gas inlet 43 of the heating main body 4 after the mouthpiece 3 is sealed and attached to the heating main body 4. In this way, the airflow in the air inlet channel 36 can enter the air channel of the honeycomb-shaped heating assembly through the communication channel 44, the airflow is heated by the honeycomb-shaped heating assembly and then enters the heating cavity 48 to heat the solid aerosol substrate 49. In this way, the solid aerosol substrate 49 can be heated by hot airflow, which can prevent the solid aerosol substrate 49 from being overheated locally and help the solid aerosol substrate 49 to be heated uniformly. The solid aerosol substrate 49 can be attached or substantially attached to the inner wall of the heating cavity 48. In this way, the heated airflow can pass through the solid aerosol substrate 49 completely, which can prevent the hot airflow from leaking from the periphery of the solid aerosol substrate 49 and causing insufficient heating or too much high-temperature gas flowing out of the mouthpiece 3.
[0047] In other embodiments, the honeycomb-shaped heating assembly can not be arranged in the heating main body 4. The heating main body 4 includes a heating body in contact with the solid aerosol substrate 49 in the heating cavity 48, or the heating main body 4 includes a heating needle for piercing the solid aerosol substrate 49. The solid aerosol substrate 49 can be heated by directly contacting the heating body or the heating needle.
[0048] In an embodiment, please continue to refer to Figure 2The heating main body 4 comprises a mounting cylinder 41 with one end closed and one end open, the open end of the mounting cylinder 41 is connected with the second shell 2, and the closed end of the mounting cylinder 41 is suspended in the second shell 2; the heating main body 4 further comprises a heating cylinder 42 which is integrally formed with the mounting cylinder 41, the heating cylinder 42 is arranged with two open ends, the heating cylinder 42 is supported in the mounting cylinder 41, a heating cavity 48 is located in the heating cylinder 42, the cylinder side wall of the heating cylinder 42 is arranged in a spaced manner with the cylinder side wall of the mounting cylinder 41 to form the communication air channel 44, the honeycomb heating assembly is installed in the heating cylinder 42, the honeycomb heating assembly comprises a heat exchange piece 45 and a heat generating body 47, the heat generating body 47 is located between the heat exchange piece 45 and the heating cylinder 42, the air channel of the honeycomb heating assembly is located in the heat exchange piece 45 to form a heat exchange air channel 46, the airflow entering the communication air channel 44 from the gas inlet 43 enters the heat exchange air channel 46 from the bottom of the heating cylinder 42, is heated by the heat generating body 47, enters the heating cavity 48 to heat the solid aerosol substrate 49, and the generated aerosol is inhaled by a user through the suction nozzle 3.
[0049] The above application of specific examples is used to describe the utility model, which is only used to help understand the utility model, and does not limit the utility model. For the skilled in the art to which the utility model belongs, according to the idea of the utility model, a number of simple deductions, deformations or substitutions can be made.
Claims
1. A mouthpiece, characterized in that A mouthpiece for use in a heat-not-burn device, the mouthpiece having a first portion and a second portion arranged in an extending direction of the mouthpiece; The mouthpiece further has an air outlet channel in communication with the first portion and the second portion in the extending direction of the mouthpiece, the air outlet channel being for allowing an aerosol generated in the heat-not-burn device to be discharged, the air outlet channel having an air inlet end and an air outlet end, the air inlet end being located on the first portion, the air outlet end being located on the second portion; The first portion has a heat distortion temperature greater than 200℃, the second portion has a heat distortion temperature less than the heat distortion temperature of the first portion.
2. The mouthpiece of claim 1, wherein The first portion is detachably connected with the second portion or integrally formed with the second portion.
3. The mouthpiece of claim 1, wherein The first portion is made of Teflon, PEEK or PI.
4. The mouthpiece of claim 1, wherein The second portion is made of silica gel, PP, PCTG, PC or POM.
5. The mouthpiece of any one of claims 1 to 4, wherein, The mouthpiece has an air inlet and an air inlet channel, the air inlet being in communication with an external space of the mouthpiece and the air inlet channel, the air inlet channel being for being in communication with a heating cavity of a heating body of a heat-not-burn device when the mouthpiece is engaged with the heating body, so as to supply air to the heating cavity.
6. The mouthpiece of claim 5, wherein The air inlet and the air inlet channel are both located on the first portion, the second portion has an outer segment for being wrapped by a user's lip, the air outlet end being located on the outer segment.
7. The mouthpiece of claim 5, wherein The air inlet channel is arranged around the air outlet channel, in an air inlet direction of an air inlet flow, the first portion is provided with a plurality of air outlets downstream of the air inlet channel, adjacent two of the air outlets are arranged at intervals in a circumferential direction around the air outlet channel, the air outlets being for being in communication with the heating cavity through a gas inlet of the heating body when the mouthpiece is engaged with the heating body.
8. The mouthpiece of claim 5, wherein The air inlet channel has a cross-sectional dimension equal at all positions in a direction perpendicular to the extending direction of the mouthpiece, the air outlet channel has a reduced diameter segment, in the extending direction of the mouthpiece, a channel wall of the air inlet channel and a channel wall of the air outlet channel enclose a closed cavity at the reduced diameter segment.
9. A heat-not-burn device, characterized in that A heat-not-burn device comprising a heating body having a heating cavity for containing a solid aerosol substrate and the mouthpiece of any one of claims 1 to 8, the mouthpiece being detachably engaged with the heating body, the air inlet end being capable of being in communication with the heating cavity when the mouthpiece is engaged with the heating body.
10. The heat-not-burn device of claim 9, wherein, The heating body has a gas inlet and a communication channel, the gas inlet being in communication with the communication channel; the heating body has a honeycomb-shaped heating assembly, air passages of the honeycomb-shaped heating assembly being in communication with the communication channel and the heating cavity, the communication channel being arranged around the honeycomb-shaped heating assembly.