Heat-not-burn assembly, heat-not-burn appliance and heat-not-burn system

Abstract

The utility model relates to the field of heat-not-burn, in particular to a heat-not-burn assembly, a heat-not-burn appliance and a heat-not-burn system.The heat-not-burn assembly comprises a heating body and a suction nozzle detachably connected with the heating body, the heating body is provided with a heating cavity, and the heating cavity is used for containing and heating a solid aerosol matrix; the suction nozzle is provided with an air inlet channel and an air outlet channel, the air inlet channel and the air outlet channel are independently arranged, the suction nozzle is provided with an air inlet, the air inlet is used for being communicated with the heating cavity through the air inlet channel when the suction nozzle is connected with the heating body, and the air outlet channel is used for being communicated with the heating cavity in a butt joint mode when the suction nozzle is connected with the heating body. Due to the fact that the air inlet, the air inlet channel and the air outlet channel are all arranged on the suction nozzle, a cooling air channel does not need to be arranged in the appliance main body, a cooling section does not need to be arranged on the aerosol product, the suction nozzle can be repeatedly used, and the aerosol product only has a solid aerosol substrate. And the cost of the aerosol product and the use cost of a user can be reduced.

Description

Technical Field

[0001] This application relates to the field of heat-not-burning, specifically to a heat-not-burning component, a heat-not-burning appliance, and a heat-not-burning system. Background Technology

[0002] Heated non-combustible systems include heated non-combustible appliances and aerosol products. Heated non-combustible appliances can heat aerosol products to generate aerosols for user use. Aerosol products typically have an aerosol matrix section, a cooling section, and a filtration section arranged sequentially along their length. Heated non-combustible appliances typically have a receiving cavity for inserting the aerosol product and an air inlet channel communicating with the receiving cavity.

[0003] The heating element of a heated non-combustible appliance heats the aerosol matrix section of the aerosol product within the containment cavity to generate aerosol. Outside air enters the aerosol matrix section within the containment cavity through the air inlet channel and is drawn out by the user along with the aerosol through the cooling section and the filter section. To avoid scalding the mouth with aerosol, a long cooling section or a cooling section made of special materials needs to be set in the aerosol product. This results in a larger volume and higher cost for the aerosol product. Furthermore, since aerosol products are disposable consumables, this leads to higher operating costs for the user. Utility Model Content

[0004] This application provides a heat-not-burning component, a heat-not-burning appliance, and a heat-not-burning system to solve the technical problem of high operating costs for users.

[0005] According to a first aspect, one embodiment provides a heat-not-combustible assembly, comprising:

[0006] A heating body having a heating chamber for containing and heating a solid aerosol matrix;

[0007] The nozzle is detachably connected to the heating body. The nozzle has an air inlet channel and an air outlet channel, which are independently arranged. The nozzle has an air inlet, which is used to supply air to the heating chamber through the air inlet channel when the nozzle is connected to the heating body. The air outlet channel is used to connect with the heating chamber when the nozzle is connected to the heating body, so as to discharge the aerosol generated in the heating chamber.

[0008] In one alternative embodiment, the air intake passage is arranged around the air outlet passage.

[0009] In an alternative embodiment, the air inlet is arranged on the outer circumferential surface of the mouthpiece and is located at the end of the air inlet channel opposite to the heating cavity in the extending direction of the air outlet channel; the air inlet is arranged obliquely relative to the extending direction of the air outlet channel in the extending direction of the air outlet channel.

[0010] In an alternative embodiment, the air inlet is arranged obliquely opposite to the outlet direction of the air outlet channel, and the included angle between the direction of the air inlet and the extending direction of the air outlet channel is 25-55°.

[0011] In an alternative embodiment, the air outlet channel comprises a variable-diameter channel having a first variable-diameter section and a second variable-diameter section arranged downstream of the first variable-diameter section in the aerosol discharge direction; the cross-sectional area of the first variable-diameter section is smaller than the cross-sectional area of the second variable-diameter section in a plane perpendicular to the extending direction of the air outlet channel, and the cross-sectional area of the first variable-diameter section is also smaller than the cross-sectional area of the heating cavity.

[0012] In an alternative embodiment, the air outlet channel comprises a connecting channel connected upstream of the variable-diameter channel in the aerosol discharge direction, and the cross-sectional area of the connecting channel is greater than the cross-sectional area of the first variable-diameter section;

[0013] The connecting channel and the first variable-diameter section are connected by a first arc-shaped channel wall, and the first variable-diameter section and the second variable-diameter section are connected by a second arc-shaped channel wall, and both the first arc-shaped channel wall and the second arc-shaped channel wall protrude towards the first variable-diameter section in the extending direction of the air outlet channel.

[0014] In an alternative embodiment, the cross-sectional dimension of the air inlet channel is constant in the extending direction of the air outlet channel; and the channel wall of the air inlet channel is arranged spaced apart from the channel wall of the first variable-diameter section in a plane perpendicular to the extending direction of the air outlet channel.

[0015] In an alternative embodiment, the air outlet channel has a collection cavity for collecting aerosol, and the cross-sectional area of the collection cavity is greater than the cross-sectional area of the heating cavity in a plane perpendicular to the extending direction of the air outlet channel.

[0016] In an alternative embodiment, the mouthpiece has a one-way air inlet structure communicating with the collection cavity, or the mouthpiece and the heating body enclose a one-way air inlet structure communicating with the collection cavity, and the one-way air inlet structure is used to communicate with the external space of the heating non-combustion assembly, so that the cold air flow in the external space can enter the collection cavity through the one-way air inlet structure and mix with the aerosol.

[0017] In an alternative embodiment, the downstream of the air inlet channel is communicated with the collecting cavity through the one-way air inlet structure; and / or, the one-way air inlet structure comprises a Tesla valve structure.

[0018] In an alternative embodiment, the mouthpiece comprises a mouthpiece body and a mouthpiece accessory, the air inlet, the air inlet channel and the air outlet channel are located on the mouthpiece body, the mouthpiece accessory is detachably connected to the mouthpiece body, and the mouthpiece accessory is located on the side of the air outlet channel away from the heating cavity in the extension direction of the air outlet channel.

[0019] In an alternative embodiment, the mouthpiece body has a mounting groove communicated with the air outlet channel, and at least part of the mouthpiece accessory is located in the mounting groove.

[0020] In an alternative embodiment, the mouthpiece accessory comprises at least one of a filter, a flavoring member and a cooling member.

[0021] In an alternative embodiment, the heating body comprises a heating cylinder enclosing the heating cavity; the mouthpiece comprises a first part and a second part arranged separately, the first part is attached to the heating cylinder, and the second part is arranged spaced apart from the heating cylinder, and the heat distortion temperature of the first part is higher than that of the second part.

[0022] According to a second aspect, in an embodiment, a heating non-combustion appliance is provided, comprising an appliance body and the heating non-combustion assembly of any of the above embodiments, the heating non-combustion assembly is mounted on the appliance body, the mouthpiece has an external end exposed to the outside of the appliance body, and the air inlet is communicated with the outside of the appliance body, and the external end is located on the side of the air inlet away from the air inlet channel in the extension direction of the air outlet channel.

[0023] According to a third aspect, in an embodiment, a heating non-combustion system is provided, comprising a solid aerosol substrate, an appliance body and the heating non-combustion assembly of any of the above embodiments, the solid aerosol substrate is located in the heating cavity, the heating non-combustion assembly is mounted on the appliance body, the mouthpiece has an external end exposed to the outside of the appliance body, the air inlet is communicated with the outside of the appliance body, and the external end is located on the side of the air inlet away from the air inlet channel in the extension direction of the air outlet channel.

[0024] According to the heating non-combustion assembly, the heating non-combustion device and the heating non-combustion system of the above embodiment, the heating non-combustion assembly comprises a heating body and a mouthpiece detachably connected with the heating body, the heating body has a heating cavity for accommodating and heating a solid aerosol substrate, the mouthpiece has an air inlet channel and an air outlet channel, the air inlet channel and the air outlet channel are arranged independently, the mouthpiece has an air inlet for communicating with the heating cavity through the air inlet channel to supply air to the heating cavity when the mouthpiece is connected with the heating body, and the air outlet channel is used for communicating with the heating cavity to discharge the aerosol generated in the heating cavity when the mouthpiece is connected with the heating body. Since the air inlet, the air inlet channel and the air outlet channel are arranged on the mouthpiece, it is not necessary to arrange an air channel for temperature reduction in the device body of the heating non-combustion device, nor is it necessary to arrange a temperature reduction section on the aerosol product, and the mouthpiece can be reused, and the aerosol product only has a solid aerosol substrate, which helps to reduce the cost of the aerosol product and the use cost of the user. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the heating non-combustion device in an embodiment.

[0026] Figure 2 It is a partial internal structural schematic diagram of the heating non-combustion device in an embodiment.

[0027] In the figure: 1, device body; 11, first body part; 12, second body part; 2, heating body; 21, mounting cylinder; 22, heating cylinder; 221, heating cavity; 23, communication air channel; 24, heat exchange element; 241, heat exchange air channel; 25, heating element; 3, mouthpiece; 30, external connection end; 31, mouthpiece body; 311, mounting groove; 312, air inlet; 313, air inlet channel; 314, air outlet channel; 315, variable-diameter channel; 316, first variable-diameter section; 317, second variable-diameter section; 3171, buffer cavity; 318, connection channel; 3181, collection cavity; 319, first arc-shaped channel wall; 320, second arc-shaped channel wall; 33, one-way air inlet structure; 34, first part; 35, second part; 36, mouthpiece accessory; 361, flavoring element; 362, filtering element; 4, solid aerosol substrate. DETAILED DESCRIPTION

[0028] The application will be described in further detail below with specific reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following description, numerous specific details are described to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without these specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure the application. In the following description, numerous specific details are described to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without these specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure the application.

[0029] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the steps of the operations involved in each embodiment can be sequentially adjusted or adjusted in a manner that can be obviously seen by those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order is necessary.

[0030] The serial numbers of the components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and have no technical meaning. The "connection" and "coupling" in this paper include direct and indirect connection (coupling) unless otherwise specified.

[0031] The heating non-combustion assembly provided by the embodiments of the application is applied to a heating non-combustion appliance, and is used for realizing heating of an aerosol product.

[0032] The heating non-combustion assembly of the embodiments of the application, please refer to Figure 1 and Figure 2 , comprising a heating body 2 and a suction nozzle 3, the heating body 2 has a heating cavity 221, the heating cavity 221 is used for accommodating and heating an aerosol product, the structure of the aerosol product in the embodiments of the application is different from that of a conventional aerosol product, and a cooling section and a filtering section are not arranged in the aerosol product in the embodiments of the application.

[0033] In an embodiment, the aerosol product comprises a solid aerosol substrate 4, which can comprise a paper tube and a filamentous, sheet-like or granular smoking solid such as tobacco or aromatic plant material wrapped by the paper tube, or a porous carrier having a smoking agent adsorbed thereon, or the solid aerosol substrate 4 comprises a solid cylindrical body formed by winding a sheet-like structure, or a shaped body formed by extrusion or molding, and the solid aerosol substrate 4 can generate an aerosol for a user to use after being heated.

[0034] The heating non-combustion assembly of the embodiments of the application, please refer toFigure 1 and Figure 2 The mouthpiece 3 is detachably connected with the heating body 2. The mouthpiece 3 can be directly detachably connected with the heating body 2. In an embodiment, the mouthpiece 3 is connected with the heating body 2 in a threaded connection or a snap connection. Alternatively, the mouthpiece 3 can be indirectly detachably connected with the heating body 2. In an embodiment, the heating non-combustion appliance includes an appliance body 1 and a heating non-combustion assembly. The appliance body 1 includes a first body part 11 and a second body part 12 which are detachably connected. The first body part 11 is hingedly, threadedly or snap connected with the second body part 12. The first body part 11 is connected with the mouthpiece 3, and the second body part 12 is connected with the heating body 2. The mouthpiece 3 is detachably connected with the heating body 2 through the detachable connection between the first body part 11 and the second body part 12. In this way, the mouthpiece 3 can be detached from the heating non-combustion appliance. The mouthpiece 3 can be adapted to the heating body 2 of multiple heating non-combustion appliances, thereby reducing the cost of the heating non-combustion appliance and the cost of use of the user.

[0035] Please refer to Figure 2 The mouthpiece 3 has an air inlet channel 313 and an air outlet channel 314. The air inlet channel 313 and the air outlet channel 314 are independently arranged, i.e. the air inlet channel 313 and the air outlet channel 314 are physically separated. The mouthpiece 3 further has an air inlet 312 which is in communication with the air inlet channel 313. When the mouthpiece 3 is connected with the heating body 2, the air inlet 312 is in communication with the heating cavity 221 through the air inlet channel 313, so as to supply air to the solid aerosol substrate 4 in the heating cavity 221. The air outlet channel 314 is used to communicate with the heating cavity 221 when the mouthpiece 3 is connected with the heating body 2, so as to discharge the aerosol generated by the solid aerosol substrate 4 in the heating cavity 221 after being heated. In this way, the air inlet 312, the air inlet channel 313 and the air outlet channel 314 are arranged on the mouthpiece 3. Neither the appliance body 1 nor the aerosol product needs to be provided with an air passage for cooling, nor does the aerosol product need to be provided with a cooling section. The mouthpiece 3 can be repeatedly used, and the aerosol product is only a solid aerosol product, which helps to reduce the cost of the aerosol product and the cost of use of the user.

[0036] In an embodiment, please continue to refer to Figure 2, the air inlet passage 313 in the mouthpiece 3 can be arranged around the air outlet passage 314, so that the heat of the aerosol with higher temperature in the air outlet passage 314 can be transferred to the air inlet passage 313 along the passage wall of the air outlet passage 314 and the passage wall of the air inlet passage 313, and the air entering the air inlet passage 313 from the air inlet port 312 can absorb the heat transferred to the air inlet passage 313 to preheat the air flow by the heat in the air outlet passage 314, which helps to improve the utilization efficiency of the heat in the heating main body 2 and reduce heat loss. In other embodiments, the air inlet passage 313 in the mouthpiece 3 can also be arranged in parallel with the air outlet passage 314.

[0037] In an embodiment, the mouthpiece 3 can have a cylindrical structure, and the air inlet passage 313 can be a sandwiched space arranged along the circumference of the mouthpiece 3. Those skilled in the art can understand that the sandwiched space is a plurality of air inlet passages that are not connected to each other, and each air inlet passage can be connected to an air inlet port 312, or it can be an annular cavity arranged around the entire air outlet passage 314, which can be connected to a plurality of air inlet ports 312 at the same time, and each air inlet port 312 can be arranged at intervals along the circumference of the mouthpiece 3.

[0038] In some embodiments, referring to Figure 1 and Figure 2 , the outer circumferential surface of the mouthpiece 3 can be a cylindrical surface or can also be an arc surface or a curved surface, the air inlet port 312 is arranged on the outer circumferential surface of the mouthpiece 3, and the air inlet port 312 is located at the end of the air inlet passage 313 away from the heating cavity 221 in the extension direction of the air outlet passage 314. In an embodiment, the mouthpiece 3 has an exposed portion exposed to the first main body portion 11 in the appliance main body 1, and the user's lips can be wrapped around the end of the exposed portion to suck out the aerosol flowing out of the air outlet passage 314, and the air inlet port 312 can be located on the exposed portion and arranged close to the first main body portion 11 in the extension direction of the air outlet passage 314. In the extension direction of the air outlet passage 314, the distance between the air inlet port 312 and the end of the exposed portion is not less than 5 mm, for example, the distance between the air inlet port 312 and the end of the exposed portion can be 5 mm-10 mm, for example, 5 mm, 6 mm or 7 mm, etc., so as to satisfy that the mouthpiece 3 has a suitable length for the user to hold, and avoid that the user's lips block the air inlet port 312.

[0039] In another embodiment, the first main body portion 11 includes a first housing, and the mouthpiece 3 further has a mounting portion in the first housing, and the air inlet port 312 is arranged on the outer circumferential surface of the mounting portion. An opening is further arranged on the first housing and communicates with the internal space of the first housing, and the external normal-temperature air can enter the air inlet passage 313 through the opening of the first housing and the air inlet port 312 of the mouthpiece 3 in sequence. In this structure, the overall length of the exposed portion in the extension direction of the air outlet passage 314 can be not less than 5 mm, so as to satisfy that the mouthpiece 3 has a suitable length for the user's lips to hold.

[0040] In some embodiments, the orientation of the air inlet 312 can be perpendicular to the extension direction of the air outlet passage 314, or the air inlet 312 can be inclined relative to the extension direction of the air outlet passage 314, that is, the angle between the orientation of the air inlet 312 and the extension direction of the air outlet passage 314 can be less than 90°.

[0041] In an embodiment, the air inlet 312 can be inclined away from the outlet direction of the air outlet passage 314, that is, in the extension direction of the air outlet passage 314, the air inlet direction of the airflow in the air inlet 312 is inclined to the direction of the air inlet passage 313, which helps to increase the flow rate and air intake of the airflow entering the air inlet passage 313. By increasing the air intake, the concentration of the aerosol discharged from the air outlet passage 314 can be reduced, and the cooling effect of the aerosol and the resistance can be increased to a certain extent. For example, the angle between the orientation of the air inlet 312 and the extension direction of the air outlet passage 314 can be 25°-55°, such as 25°, 55°, or 35°, 45°, etc.

[0042] In another embodiment, the air inlet 312 can also be inclined in the extension direction of the air outlet passage 314, that is, the air inlet direction of the airflow in the air inlet 312 is inclined away from the direction of the air inlet passage 313, which helps to reduce the flow rate and air intake of the airflow entering the air inlet passage 313. By reducing the air intake, the concentration of the aerosol discharged from the air outlet passage 314 can be increased, and the resistance can be increased to a certain extent to meet the suction needs of different users.

[0043] In some embodiments, please refer to Figure 2 For the air outlet passage 314, the inlet of the air outlet passage 314 can be directly connected and communicated with the heating cavity 221 when the mouthpiece 3 is engaged with the heating body 2, to receive the aerosol discharged from the heating cavity 221. The heating cavity 221 in the heating body 2 can be a cylindrical cavity, and the solid aerosol substrate 4 in the heating cavity 221 can be placed in the heating cavity 221 when the mouthpiece 3 is separated from the heating body 2, and the solid aerosol substrate 4 can be heated by controlling the heating body 2 after the mouthpiece 3 is engaged with the heating body 2. The cross-sectional shape of the air outlet passage 314 is circular, and the air outlet passage 314 includes a variable-diameter passage 315, which can accelerate the discharge of the aerosol, promote the formation of the aerosol, and prevent the condensation of the aerosol.

[0044] In some embodiments, the variable-diameter passage 315 has a first variable-diameter section 316 and a second variable-diameter section 317, the first variable-diameter section 316 is connected upstream of the second variable-diameter section 317 in the aerosol discharge direction, the cross-sectional area of the first variable-diameter section 316 is smaller than the cross-sectional area of the second variable-diameter section 317 in a plane perpendicular to the extension direction of the vertical gas outlet passage 314, i.e. in a plane perpendicular to the aerosol discharge direction, and the cross-sectional area of the first variable-diameter section 316 is also smaller than the cross-sectional area of the heating cavity 221, so that the aerosol discharge speed can be increased by the first variable-diameter section 316 with a smaller cross-sectional area.

[0045] Specifically, in one embodiment, referring back to Figure 2 , the cross-sectional diameter of the first variable-diameter section 316 can be 1 / 8-1 / 4 of the cross-sectional diameter of the heating cavity 221, so that the aerosol flow rate in the first variable-diameter section 316 can meet the use requirements while facilitating processing; of course, the cross-sectional diameter of the first variable-diameter section 316 can also be 1 / 3 or 1 / 9 of the cross-sectional diameter of the heating cavity 221, as long as the aerosol flow rate through the outlet of the first variable-diameter section 316 is greater than the aerosol flow rate discharged from the outlet of the heating cavity 221.

[0046] In one embodiment, the cross-sectional area of the second variable-diameter section 317 is greater than the cross-sectional area of the first variable-diameter section 316, and the gas outlet passage 314 forms a buffer cavity 3171 at the position of the second variable-diameter section 317, so that the aerosol flow rate can be reduced by the second variable-diameter section 317 with a larger cross-sectional area, and the aerosol can be buffered and collected by the second variable-diameter section 317 during the puffing interval or the puffing process, so as to reduce the temperature of the aerosol and improve the concentration of the aerosol discharged from the outlet of the gas outlet passage 314.

[0047] Since the cross-sectional area of the second variable-diameter section 317 is greater than the cross-sectional area of the first variable-diameter section 316, the aerosol discharged from the outlet of the first variable-diameter section 316 will diffuse in a direction perpendicular to the aerosol discharge direction, i.e. in the extension direction of the vertical gas outlet passage 314, which can reduce the speed of the aerosol and reduce the temperature of the aerosol, and on the other hand, the aerosol particles can be agglomerated when the aerosol collides with the passage wall of the second variable-diameter section 317 in the extension direction of the vertical gas outlet passage 314, so that the aerosol can be buffered and collected by the second variable-diameter section 317, and the concentration of the aerosol in the second variable-diameter section 317 can be improved.

[0048] In some embodiments, referring back to Figure 2 , the gas outlet passage 314 further includes a connecting passage 318 connected upstream of the variable-diameter passage 315 in the aerosol discharge direction, the cross-sectional area of the connecting passage 318 is greater than the cross-sectional area of the first variable-diameter section 316, and the connecting passage 318 can be used to connect the heating cavity 221 and the variable-diameter passage 315.

[0049] In an embodiment, please continue to refer to Figure 2 The connecting channel 318 is connected with the first variable-diameter section 316 through a first arc-shaped channel wall 319, and the first variable-diameter section 316 is connected with the second variable-diameter section 317 through a second arc-shaped channel wall 320. The central angles of the first arc-shaped channel wall 319 and the second arc-shaped channel wall 320 are less than or greater than 90°, or can also be equal to 90° to facilitate the processing of the channel wall of the air outlet channel 314.

[0050] The first arc-shaped channel wall 319 and the second arc-shaped channel wall 320 are both arranged protruding towards the first variable-diameter section 316 in the extension direction of the air outlet channel 314. In the aerosol discharge direction, the aerosol particles flow through the first arc-shaped channel wall 319 and are gathered at the first arc-shaped channel wall 319 under the guidance of the first arc-shaped channel wall 319. Thus, the aerosol diffusion cooling can be realized while avoiding aerosol condensation, and the concentration of the aerosol can be improved.

[0051] Similarly, in the aerosol discharge direction, the aerosol is gathered at the second arc-shaped channel wall 320 under the guidance of the second arc-shaped channel wall 320 in the process of entering the second variable-diameter section 317 from the outlet of the first variable-diameter section 316. Thus, the aerosol diffusion cooling can be realized while avoiding aerosol condensation, and the concentration of the aerosol can be improved.

[0052] Of course, in other embodiments, the connecting channel 318 and the first variable-diameter section 316, and the first variable-diameter section 316 and the second variable-diameter section 317 can also be connected through channel walls with curved surfaces. As long as the two channel walls with curved surfaces are arranged protruding towards the first variable-diameter section 316 in the extension direction of the air outlet channel 314, the two channel walls with curved surfaces can guide the aerosol particles to gather.

[0053] Or in other embodiments, the channel wall between the connecting channel 318 and the first variable-diameter section 316 and / or the channel wall between the first variable-diameter section 316 and the second variable-diameter section 317 is provided as a channel wall with a bending angle. Thus, when the aerosol flows through the channel wall with the bending angle, a vortex can also be formed at the position of the bending angle to realize particle gathering while diffusing and cooling.

[0054] In the embodiment in which the air inlet channel 313 is arranged around the air outlet channel 314 and the air outlet channel 314 includes the variable-diameter channel 315, please refer to Figure 2In the extension direction of the air outlet passage 314, the cross-sectional dimension of the air inlet passage 313 is constant, and in the plane perpendicular to the extension direction of the air outlet passage 314, the passage wall of the air inlet passage 313 is spaced apart from the passage wall of the first variable-diameter section 316, so that a closed cavity is formed between the passage wall of the air inlet passage 313 and the passage wall of the first variable-diameter section 316. On the one hand, the arrangement of the first variable-diameter section 316 does not affect the change in the cross-sectional dimension of the air inlet passage 313, and on the other hand, the high-temperature aerosol in the air outlet passage 314 can transfer heat to the airflow in the closed cavity to reduce the temperature of the aerosol in the air outlet passage 314 through the closed cavity. Moreover, the cross-sectional dimension of the air inlet passage 313 is constant, and the passage wall of the air inlet passage 313 is spaced apart from the first variable-diameter section 316, which can prevent the air inlet airflow from filling the space between the air inlet passage 313 and the first variable-diameter section 316, reduce the suction resistance of the user inhaling the aerosol, and improve the user experience.

[0055] In some embodiments, the passage wall of the air inlet passage 313 can be provided separately from the passage wall of the air outlet passage 314. For example, in an embodiment, the mouthpiece 3 includes a cylindrical tubular structure, the air inlet passage 313 is located on the tubular wall of the tubular structure, and the passage wall of the air outlet passage 314 has a shape of a sandglass. The passage wall of the air outlet passage 314 has a reduced-diameter section corresponding to the first variable-diameter section 316, and the passage wall of the air outlet passage 314 can be connected to the tubular structure by a threaded connection or a snap-fit connection to realize the assembly of the entire mouthpiece 3. Alternatively, in another embodiment, the tubular structure of the mouthpiece 3 can be integrally formed with the passage wall of the air outlet passage 314.

[0056] Alternatively, in other embodiments, part of the passage wall of the air inlet passage 313 forms the passage wall of the air outlet passage 314. Since the air outlet passage 314 has the first variable-diameter section 316 with a smaller cross-sectional dimension, the air inlet passage 313 has a part with a larger cross-sectional dimension, which corresponds to the first variable-diameter section 316 in the extension direction of the air outlet passage 314. In this way, the cross-sectional dimension of the air inlet passage 313 in the air inlet direction forms a structure with a cross-sectional dimension changing from small to large and then small, which helps to increase the air inlet amount of the air inlet passage 313, reduces the aerosol concentration, and meets the user's demand.

[0057] In some embodiments, please continue to refer to Figure 2, in addition to the buffer cavity 3171 at the second variable diameter section 317, the gas outlet channel 314 also has a collection cavity 3181 for collecting aerosol, which can be located in the connecting channel 318, the collection cavity 3181 is a cylindrical cavity structure, in the plane perpendicular to the extension direction of the gas outlet channel 314, the cross-sectional area of the connecting channel 318 is greater than that of the heating cavity 221, so as to meet the cross-sectional area of the collection cavity 3181 is greater than that of the heating cavity 221, the speed of the aerosol discharged from the heating cavity 221 will decrease after entering the connecting channel 318, which can realize the diffusion and cooling of the aerosol in the collection cavity 3181, and realize the collection of the aerosol, which helps to ensure the continuity of the aerosol, thereby improving the taste and use experience of the user.

[0058] Of course, in other embodiments, the gas outlet channel 314 can also not be provided with the connecting channel 318, that is, the collection cavity 3181 is not provided, and the heating cavity 221 can be directly communicated with the variable diameter channel 315, and the collection and cooling of the aerosol can be realized only through the buffer cavity 3171 in the second variable diameter section 317.

[0059] In some embodiments, please continue to refer to Figure 2 The mouthpiece 3 has a one-way air inlet structure 33 communicated with the collection cavity 3181 in the connecting channel 318, or the mouthpiece 3 and the heating main body 2 enclose a one-way air inlet structure 33 communicated with the collection cavity 3181, the one-way air inlet structure 33 is used to communicate with the external space of the heating non-combustion assembly, the airflow of the external space can enter the collection cavity 3181 through the one-way air inlet structure 33 and mix with the aerosol, which helps to realize the cooling of the aerosol, and the one-way air inlet structure 33 is arranged only to enable the external air to enter the collection cavity 3181, and the aerosol in the collection cavity 3181 cannot overflow from the one-way air inlet structure 33.

[0060] The number of one-way air inlet structures 33 can be set to multiple, such as two, three, four, etc., and multiple one-way air inlet structures 33 are arranged at intervals in the circumferential direction around the collection cavity 3181 to ensure uniform air intake in the collection cavity 3181, which helps to evenly collect the aerosol concentration and temperature in the collection cavity 3181. The interval channel between adjacent two one-way air inlet structures 33 can form part of the air inlet channel 313, that is, the airflow entering the air inlet channel 313 from the air inlet 312 can enter the heating cavity 221 of the heating main body 2 through the interval channel between adjacent two one-way air inlet structures 33.

[0061] The air flow rate entering the collection cavity 3181 through the one-way air intake structure 33 is 17.5 ml / s-30 ml / s, so as to provide a good suction experience for the user. The number of one-way air intake structures 33 can be adjusted to make the air flow rate entering the collection cavity 3181 from the air intake channel 313 within the required range; the air intake port size, shape, etc. of the one-way air intake structure 33 can also be adjusted to accelerate or decelerate the air flow as needed when entering the collection cavity 3181 through the one-way air intake structure 33, so as to reach the required flow rate interval. Of course, in other embodiments, the air flow rate entering the collection cavity 3181 through the one-way air intake structure 33 can also be other flow rates.

[0062] In an embodiment, the one-way air intake structure 33 can be arranged in the channel wall of the air intake channel 313 in the radial direction of the collection cavity 3181, and the air intake port of the one-way air intake structure 33 is located radially outside the outer peripheral surface of the mouthpiece 3. External air can sequentially communicate with the collection cavity 3181 through the opening on the first body portion 11 and the air intake port of the one-way air intake structure 33. The one-way air intake structure 33 can only allow external normal-temperature air to enter the collection cavity 3181, and the aerosol in the collection cavity 3181 cannot overflow from the one-way air intake structure 33.

[0063] In an embodiment, please refer to Figure 2 The one-way air intake structure 33 can also be arranged downstream of the air intake channel 313 in the mouthpiece 3 in the air intake direction of the air intake channel 313. The air intake port of the one-way air intake structure 33 is located in the air intake channel 313, that is, the two ends of the one-way air intake structure 33 are in communication with the air intake channel 313 and the collection cavity 3181 in the connecting channel 318, respectively. The one-way air intake structure 33 is used to communicate with the external space of the heating non-combustion assembly through the air intake channel 313. The air flow of the external space can enter the collection cavity 3181 through the air intake channel 313 and the one-way air intake structure 33 and mix with the aerosol, which helps to achieve the dilution and cooling of the aerosol. The arrangement of the one-way air intake structure 33 can only allow external normal-temperature air to enter the collection cavity 3181 from the air intake channel 313, and the aerosol in the collection cavity 3181 cannot overflow from the one-way air intake structure 33 to the air intake channel 313, which can avoid the phenomenon of aerosol condensation in the air intake channel 313 and avoid the difficulty of cleaning the mouthpiece 3.

[0064] The air entering into the air inlet channel 313 from the air inlets 312 is divided at the one-way air inlet structure 33. The ratio of the number of air inlets 312 to the number of one-way air inlet structures 33 can be set to adjust the proportion of the air amount in the collection cavity 3181. For example, the number of air inlets 312 can be set to be not less than the number of one-way air inlet structures 33, so that 50%-90% of the air in the air inlet channel 313 enters the heating cavity 221 of the heating body 2, and 10%-50% of the air enters the collection cavity 3181 along the one-way air inlet structure 33.

[0065] The scheme of setting the air inlet channel 313 in communication with the one-way air inlet structure 33 helps to simplify the overall structure of the heating non-combustion assembly, and there is no need to additionally set an air inlet structure on the mouthpiece 3 and the appliance body 1 in communication with the one-way air inlet structure 33.

[0066] In an embodiment, the one-way air inlet structure 33 can be a one-way valve structure with a valve plate, a valve flap or a valve core, or can also be a Tesla valve structure. In an embodiment, the one-way air inlet structure 33 can be arranged only on the mouthpiece 3, or in another embodiment, please refer to Figure 2 , the mouthpiece 3 can be sealingly fitted with the heating body 2 by a sealing member, the one-way air inlet structure 33 is formed by the mouthpiece 3 and the heating body 2, and the one-way air inlet structure 33 is a Tesla valve structure to facilitate the processing of the one-way air inlet structure 33 on the mouthpiece 3 and the heating body 2.

[0067] Of course, in other embodiments, the one-way air inlet structure 33 can be cancelled, and all the air entering into the air inlet channel 313 from the air inlets 312 is used to supply air to the heating cavity 221; the volume of the collection cavity 3181 and the buffer cavity 3171, the air amount and the air speed of the air inlets 312 can be set to change the concentration of the aerosol at the outlet of the air outlet channel 314 and to reduce the temperature of the aerosol.

[0068] In some embodiments, please refer to Figure 2 , the mouthpiece 3 comprises a mouthpiece body 31 and a mouthpiece accessory 36, the exposed part, the air inlets 312, the air inlet channel 313 and the air outlet channel 314 are all located on the mouthpiece body 31, the mouthpiece accessory 36 is detachably connected to the mouthpiece body 31, the mouthpiece body 31 is arranged in extension in the extension direction of the air outlet channel 314, one end of the mouthpiece body 31 in the extension direction is engaged with the heating body 2, and the mouthpiece accessory 36 is detachably connected to the end of the exposed part of the mouthpiece body 31.

[0069] In some embodiments, the mouthpiece accessory 36 can be detachably connected to the mouthpiece body 31 by interference fit, clamping or threaded connection. In an embodiment, please refer to Figure 2The end of the exposed part of the suction nozzle body 31 has a mounting groove 311 communicating with the air outlet channel 314, and the suction nozzle accessory 36 can be mounted in the mounting groove 311 as a whole, or in another embodiment, part of the suction nozzle accessory 36 can be located in the mounting groove 311, and the other part of the suction nozzle accessory 36 is located outside the mounting groove 311. The part located in the mounting groove 311 can be connected to the suction nozzle body 31 by interference fit or threaded connection.

[0070] In order to facilitate suction while achieving stable installation of the suction nozzle accessory 36 on the suction nozzle body 31, please refer to Figure 2 The inner diameter of the mounting groove 311 can be 6-8 mm, for example, 6 mm, 6.5 mm, 7 mm, 7.5 mm or 8 mm, etc. In other embodiments, the inner diameter of the mounting groove 311 can adopt other size specifications to meet the requirements of stable installation of the suction nozzle accessory 36 on the suction nozzle body 31.

[0071] In some embodiments, the suction nozzle accessory 36 includes at least one of a filter 362, a flavoring element 361 and a cooling element (not shown in the figure), such as an embodiment in which the suction nozzle accessory 36 only includes the filter 362, which is used to filter liquid aerosol in the aerosol; another embodiment in which the suction nozzle accessory 36 only includes the flavoring element 361, which can be a flavoring burst, and the flavoring element 361 is used to change the taste of the aerosol to meet the needs of different users; or another embodiment, the suction nozzle accessory 36 only includes a cooling element, which can be a cooling medium, and the cooling element is used to reduce the temperature of the aerosol to avoid burning the mouth by the inlet aerosol.

[0072] In some embodiments, the suction nozzle accessory 36 can also include any two or three of the flavoring element 361, the filter 362 and the cooling element, such as an embodiment in which the suction nozzle accessory 36 includes an accessory shell and the flavoring element 361 and the filter 362 located in the accessory shell, and the filter 362 can wrap the flavoring element 361, and the suction nozzle accessory 36 can filter liquid aerosol in the aerosol and change the aroma taste of the aerosol at the same time; another embodiment, the suction nozzle accessory 36 includes an accessory shell and the filter 362 and the cooling element located in the accessory shell, and the suction nozzle accessory 36 can filter liquid aerosol in the aerosol and reduce the temperature of the aerosol at the same time.

[0073] Of course, in other embodiments, the suction nozzle accessory 36 can also not be provided with an accessory shell, and any two or three of the flavoring element 361, the filter 362 and the cooling element can be sequentially filled in the mounting groove 311 of the suction nozzle body 31 to meet the different use needs of users.

[0074] In some embodiments, for the mouthpiece 3, the mouthpiece body 31 in the mouthpiece 3 can further include a first part 34 and a second part 35 arranged separately, the heating body 2 includes a heating cylinder 22 surrounding a heating cavity 221, the first part 34 and the second part 35 are arranged in the extension direction of the air outlet channel 314, the first part 34 can be attached to the heating cylinder 22, and the second part 35 is connected to the first part 34 on the side away from the heating cylinder 22 to satisfy the arrangement of the second part 35 and the heating cylinder 22, the thermal deformation temperature of the first part 34 is higher than that of the second part 35, which can satisfy the better temperature resistance of the mouthpiece 3 and help to reduce the cost of the mouthpiece 3 and the whole heating non-combustion assembly.

[0075] The first part 34 and the second part 35 can be arranged separately at the groove bottom wall of the mounting groove 311, the second part 35 is a cylindrical structure with both ends open, the air inlet 312, the air inlet channel 313 and the air outlet channel 314 are located on the first part 34, the first part 34 can be connected with the second part 35 through threads or buckles, or the first part 34 and the second part 35 are integrally injection molded, the thermal deformation temperature of the first part 34 is greater than 200℃, the thermal deformation temperature of the second part 35 is less than that of the first part 34, the material of the first part 34 can be Teflon, PEEK (Polyetheretherketone, Polyetheretherketone) or PI (Polyimide, Polyimide), the material of the second part 35 can be silica gel, PEI (Polyetherimide, Polyetherimide), PCTG (Polyethylene Terephthalate Glycol, Polyethylene Terephthalate Glycol), PC (Polycarbonate, Polycarbonate) or POM (Polyformaldehyde, Polyformaldehyde).

[0076] In other embodiments, the first part 34 and the second part 35 can also be arranged separately at the connecting channel 318, the first variable diameter section 316 or the second variable diameter section 317.

[0077] Of course, in other embodiments, in order to facilitate processing and manufacturing, the mouthpiece 3 can also be provided as an integrally formed structure, the thermal deformation temperature of the whole mouthpiece body 31 is greater than 200℃ to satisfy the longer service life of the mouthpiece 3.

[0078] In some embodiments, please refer to ​For the heating main body 2, the heating main body 2 comprises an integrally formed heating cylinder 22 and a mounting cylinder 21, the mounting cylinder 21 and the heating cylinder 22 are arranged in the extending direction of the air outlet channel 314, the mounting cylinder 21 is open at one end and closed at the other end in the extending direction thereof, the heating cylinder 22 is a cylinder structure open at both ends, the heating cylinder 22 is located in the mounting cylinder 21 and can be supported and mounted at the closed end of the mounting cylinder 21, the heating cylinder 22 can be connected with the second main body part 12 of the appliance main body 1 through the mounting cylinder 21, the second main body part 12 of the appliance main body 1 comprises a second housing, the mounting cylinder 21 can be connected on the second housing in a threaded connection or a snap connection or an interference fit manner, the closed end of the mounting cylinder 21 is suspended in the second housing, and the mounting cylinder 21 and the circuit board, the battery cell and the like in the second housing are arranged at intervals to reduce the heat transferred from the heating main body 2 to other components in the second housing.

[0079] The heating cavity 221 is located in the heating cylinder 22, and a heat exchange member 24 is further arranged in the heating cylinder 22, the heat exchange member 24 is in a honeycomb shape and has a plurality of heat exchange air channels 241 communicating with the interior space of the mounting cylinder 21 and the heating cavity 221; the cylinder side wall of the heating cylinder 22 is arranged at intervals with the cylinder side wall of the mounting cylinder 21 to form a communicating channel 23 between the heating cylinder 22 and the mounting cylinder 21, that is, the heating main body 2 has a communicating air inlet and the communicating channel 23, the communicating channel 23 can be arranged around the honeycomb-shaped heat exchange member 24, the heat exchange air channels 241 of the heat exchange member 24 communicate the communicating channel 23 with the heating cavity 221, and the air inlets of the communicating channel 23 can be formed on the top end face of the heating main body 2; correspondingly, the air outlets of the air inlet channels 313 can be formed on the bottom end face of the suction nozzle 3, the air inlets of the communicating channel 23 and the air outlets of the air inlet channels 313 are not less than two, the air outlets of the air inlet channels 313 are arranged at intervals along the circumferential direction of the suction nozzle 3, the air inlets of the communicating channel 23 are arranged at intervals along the circumferential direction of the heating main body 2, the number of the air outlets of the air inlet channels 313 is not less than the number of the air inlets of the heating main body 2, and at least part of the air outlets of the air inlet channels 313 and the air inlets of the communicating channel 23 correspond one by one, in this way, the communicating channel 23 can be connected and communicated with the air inlet channels 313 when the suction nozzle 3 and the heating main body 2 are connected, and the airflow entering the air inlet channels 313 from the air inlets 312 can enter the mounting cylinder 21 along the communicating channel 23, and then enter the heat exchange air channels 241 from the closed end of the mounting cylinder 21. It can be understood that in some embodiments, the shape and size of the air inlets of the communicating channel 23 and the air outlets of the air inlet channels 313 can also be consistent.

[0080] In some embodiments, the air outlet of the partial air inlet channel 313 is communicated with the air inlet of the one-way air inlet structure 33, so that a part of the external air can directly enter the air outlet channel 314 from the air outlet of the partial air inlet channel 313 through the one-way air inlet structure 33, and another part of the air can directly enter the communication air channel 23 from the air outlet of the partial air inlet channel 313, and then is heated by the heat exchange member 24 in the heating cylinder 22, and then is indirectly heated by the heated air in the heating cavity 221.

[0081] The heating cylinder 22 and the heat exchange member 24 are provided with a heating member 25, the heat of the heating member 25 can be transmitted to the heat exchange member 24, the heat exchange member 24 can heat the air flow flowing through the heat exchange air channel 241 to form a hot air flow, the hot air flow enters the heating cavity 221 from the heat exchange air channel 241 to heat the solid aerosol substrate 4 to generate aerosol; the heat of the heating member can also be transmitted to the air flow in the communication air channel 23 through the heating cylinder 22 to preheat the air inlet air flow, which helps to improve the heat utilization rate of the heating main body 2 and reduce heat loss.

[0082] The application also provides a heating non-combustion appliance, which comprises an appliance main body 1 and the heating non-combustion assembly in any of the above embodiments, the heating non-combustion assembly is mounted on the appliance main body 1, the appliance main body 1 comprises a first main body part 11 and a second main body part 12 which are detachably connected through a hinge shaft, a thread or a buckle, the first main body part 11 and the second main body part 12 are sealingly matched through a sealing member, the first main body part 11 comprises a first shell, the second main body part 12 comprises a second shell, the mouthpiece 3 in the heating non-combustion assembly is mounted on the first shell, the heating main body 2 is mounted on the second shell, and the second shell is further provided with an electric core (not shown in the figure) and a circuit board (not shown in the figure) which are electrically connected with the heating main body 2, and the heating of the heating member 25 in the heating main body 2 can be controlled by the circuit board.

[0083] The mouthpiece 3 has an external connection end 30, the external connection end 30 of the mouthpiece 3 is located on the exposed part of the mouthpiece 3 which is exposed to the first main body part 11, and the external connection end 30 of the mouthpiece 3 is located on the side of the air inlet 312 which is away from the air inlet channel 313 in the extension direction of the air outlet channel 314, the air inlet 312 is communicated with the outside of the appliance main body 1, and the user's lip can be wrapped around the outer peripheral surface of the external connection end 30 to suck out the aerosol discharged from the air outlet channel 314.

[0084] The application further provides a heating non-combustion system, which comprises an appliance body 1, a solid aerosol substrate 4 and the heating non-combustion assembly in any of the above embodiments. The solid aerosol substrate 4 is not provided with a temperature-lowering structure, a filtering structure and an aroma-enhancing structure, and comprises a paper tube and a filamentous, sheet-like or granular solid wrapped by the paper tube, or comprises a solid cylinder formed by winding a sheet-like structure, and can generate an aerosol for a user to use after being heated. The solid aerosol substrate 4 is located in the heating cavity 221 of the heating non-combustion assembly, and the heating non-combustion assembly is mounted on the appliance body 1.

[0085] In an embodiment, the appliance body 1 comprises a first body part 11 and a second body part 12 which are detachably connected through a hinge shaft, a thread or a buckle, the first body part 11 comprises a first shell, the second body part 12 comprises a second shell, the suction nozzle 3 is mounted on the first shell, the heating body 2 is mounted on the second shell, and an electric core and a circuit board which are electrically connected with the heating body 2 are further arranged in the second shell, the first body part 11 and the second body part 12 are sealingly fitted, and the suction nozzle 3 is sealingly engaged with the heating body 2 after the first body part 11 and the second body part 12 are connected and sealingly fitted.

[0086] The suction nozzle 3 has an external connecting end 30 which is exposed to the first body part 11, the external connecting end 30 is located on the exposed part, the air inlet 312 is communicated with the outside of the appliance body 1, and the external connecting end 30 is located on the side away from the air inlet passage 313 in the extending direction of the air outlet passage 314, and the lips of a user can be wrapped around the outer circumferential surface of the external connecting end 30 to suck out the aerosol discharged from the air outlet passage 314.

[0087] The above application of specific examples is used to illustrate the present application, which is only used to help understand the present application, and does not limit the present application. According to the idea of the present application, those skilled in the art can make some simple deductions, deformations or substitutions.

Claims

1. A heat-not-burn assembly, characterized by, The application relates to a heating non-combustion assembly, comprising: a heating body having a heating cavity for accommodating and heating solid aerosol substrate; a mouthpiece detachably connected with the heating body, the mouthpiece having an air inlet channel and an air outlet channel, the air inlet channel and the air outlet channel being arranged independently of each other, the mouthpiece having an air inlet opening for, when the mouthpiece is connected with the heating body, communicating with the heating cavity through the air inlet channel to supply air to the heating cavity, the air outlet channel being arranged to communicate with the heating cavity to discharge aerosol generated in the heating cavity when the mouthpiece is connected with the heating body.

2. The heated- but-not-combusted assembly of claim 1, wherein, The air inlet channel is arranged around the air outlet channel.

3. The heated, not combusted, assembly of claim 1, wherein, The air inlet opening is arranged on the outer circumferential surface of the mouthpiece and is located at the end of the air inlet channel away from the heating cavity in the extending direction of the air outlet channel; the air inlet opening is arranged obliquely relative to the extending direction of the air outlet channel.

4. The heated- not- combustible assembly of claim 3, wherein, The air inlet opening is arranged obliquely relative to the outlet direction of the air outlet channel, and the included angle between the direction of the air inlet opening and the extending direction of the air outlet channel is 25-55 degrees.

5. The heated, not combusted, assembly of claim 1, wherein, The air outlet channel comprises a variable-diameter channel having a first variable-diameter section and a second variable-diameter section arranged downstream of the first variable-diameter section in the aerosol discharge direction; in a plane perpendicular to the extending direction of the air outlet channel, the cross-sectional area of the first variable-diameter section is smaller than that of the second variable-diameter section, and the cross-sectional area of the first variable-diameter section is also smaller than that of the heating cavity.

6. The heated- but-not-combusted assembly of claim 5, wherein, The air outlet channel comprises a connecting channel connected upstream of the variable-diameter channel in the aerosol discharge direction, and the cross-sectional area of the connecting channel is greater than that of the first variable-diameter section. The connecting channel and the first variable-diameter section are connected through a first arc-shaped channel wall, and the first variable-diameter section and the second variable-diameter section are connected through a second arc-shaped channel wall, and the first arc-shaped channel wall and the second arc-shaped channel wall both protrude towards the first variable-diameter section in the extending direction of the air outlet channel.

7. The heated, not combusted, assembly of claim 5, wherein, In the extending direction of the air outlet channel, the cross-sectional dimension of the air inlet channel is constant; in a plane perpendicular to the extending direction of the air outlet channel, the channel wall of the air inlet channel is arranged spaced apart from the channel wall of the first variable-diameter section.

8. The heated- not- burning assembly of claim 1, wherein, The air outlet channel has a collection cavity for collecting aerosol, and in a plane perpendicular to the extending direction of the air outlet channel, the cross-sectional area of the collection cavity is greater than that of the heating cavity.

9. The heated- not- burning assembly of claim 8, wherein, The mouthpiece has a one-way air inlet structure communicating with the collection cavity, or the mouthpiece and the heating body enclose a one-way air inlet structure communicating with the collection cavity, and the one-way air inlet structure is used to communicate with the external space of the heating non-combustion assembly to enable cold air flow in the external space to enter the collection cavity through the one-way air inlet structure to mix with the aerosol.

10. The heated, not combusted, assembly of claim 9, wherein, The downstream of the air inlet channel communicates with the collection cavity through the one-way air inlet structure; and / or the one-way air inlet structure comprises a Tesla valve structure.

11. A heat-not-burn assembly according to any one of claims 1 to 10, wherein, The mouthpiece comprises a mouthpiece body and a mouthpiece accessory, the air inlet, the air inlet channel and the air outlet channel are located on the mouthpiece body, the mouthpiece accessory is detachably connected to the mouthpiece body, and the mouthpiece accessory is located on the side of the air outlet channel away from the heating cavity in the extension direction of the air outlet channel.

12. The heated- but-not-combusted assembly of claim 11, wherein, The mouthpiece body has a mounting groove in communication with the air outlet channel, and at least part of the mouthpiece accessory is located in the mounting groove.

13. The heated- not- burning assembly of claim 11, wherein, The mouthpiece accessory comprises at least one of a filter, a flavor enhancer and a cooling element.

14. A heat-not-burn assembly according to any one of claims 1 to 10, wherein, The heating body comprises a heating cylinder enclosing the heating cavity; the mouthpiece comprises a first part and a second part arranged separately, the first part is attached to the heating cylinder, and the second part is arranged separately from the heating cylinder, the thermal deformation temperature of the first part is higher than that of the second part.

15. A heat-not-burn appliance, characterized in that, The device comprises a device body and the heat-not-burn assembly according to any one of claims 1 to 14, the heat-not-burn assembly is mounted on the device body, the mouthpiece has an external end exposed to the outside of the device body, and the air inlet is in communication with the outside of the device body, the external end is located on the side of the air inlet away from the air inlet channel in the extension direction of the air outlet channel.

16. A heat-not-burn system, characterized in that The device comprises a device body and the heat-not-burn assembly according to any one of claims 1 to 14, the heat-not-burn assembly is mounted on the device body, the mouthpiece has an external end exposed to the outside of the device body, and the air inlet is in communication with the outside of the device body, the external end is located on the side of the air inlet away from the air inlet channel in the extension direction of the air outlet channel.

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