Heat-not-burn appliance

Abstract

The utility model relates to the technical field of heat-not-burn, in particular to a heat-not-burn appliance which comprises an appliance body provided with a mounting cavity, an air inlet and an air outlet. The containing cylinder is located in the installation cavity, a containing cavity of the containing cylinder is communicated with the air outlet, and through holes are formed in the cylinder wall of the containing cylinder. The heating element is installed on the appliance body, located in the through hole and inserted into the aerosol generating substrate, an air inlet channel communicating the air inlet and the air outlet is formed between the hole wall face of the through hole and the heating element, and the heating element forms a channel wall face of the air inlet channel on at least part of the outer side face in the through hole; one part of heat of the heating element is transmitted to the aerosol generating substrate in a direct contact manner, the other part of the heat is directly transmitted to the airflow of the air inlet channel, and then the aerosol generating substrate is heated through the hot airflow, so that the heat of the heating element is fully utilized while the aerosol generating substrate is uniformly heated, and the heat utilization rate is increased; and the energy consumption of the whole heating non-combustion appliance is reduced.

Description

Technical Field

[0001] This application relates to the technical field of heat-not-burn, and particularly to a heat-not-burn appliance. Background Art

[0002] Heat-not-burn appliances generally use the heat-not-burn method to heat the aerosol-forming substrate. Specifically, the heating element in the heat-not-burn appliance can heat the aerosol-forming substrate by direct contact. However, this will cause the aerosol-forming substrate near the heating element to be over-baked, generating miscellaneous gases, and the aerosol-forming substrate far from the heating element is insufficiently heated, resulting in uneven heating of the entire aerosol-forming substrate.

[0003] In addition, the heat-not-burn appliance can also heat the aerosol-forming substrate evenly by setting a heat exchange air passage on the heat exchange part, so that the heating element transfers heat to the heat exchange part, and the heat exchange part heats the air flow flowing through the heat exchange air passage, and the aerosol-forming substrate is heated by the hot air flow. However, the heat of the heating element is transferred to the air flow flowing through the heat exchange air passage through the heat exchange part, resulting in low heat utilization rate of the heating element. Utility Model Content

[0004] This application provides a heat-not-burn appliance to solve the technical problem of low heat utilization rate of the heating element in the heat-not-burn appliance.

[0005] According to a first aspect, in one embodiment, a heat-not-burn appliance is provided, including:

[0006] An appliance main body having an installation cavity, an air inlet and an air outlet communicating with the installation cavity;

[0007] A receiving cylinder located in the installation cavity, the receiving cylinder having a receiving cavity communicating with the air outlet, the receiving cavity being used to accommodate the aerosol-forming substrate, and through holes communicating with the receiving cavity being provided on the cylinder wall of the receiving cylinder;

[0008] A heating element installed on the appliance main body, the heating element being located in the through hole, and the heating element extending towards the receiving cavity to insert into the aerosol-forming substrate for heating; an air inlet channel is provided between the wall surface of the through hole and the outer side surface of the heating element, and at least a part of the outer side surface of the heating element in the through hole forms the channel wall surface of the air inlet channel, and the air inlet channel communicates the air inlet and the air outlet.

[0009] In an optional embodiment, the air inlet channel is arranged around the heating element.

[0010] In an alternative embodiment, the heat-not-burn appliance has an air flow channel located in the installation cavity. The air flow channel is arranged around the accommodation cylinder, and the side wall of the accommodation cylinder forms the channel wall of the air flow channel. The air flow channel communicates the air inlet with the air intake channel.

[0011] In an alternative embodiment, the accommodation cylinder has a bottom wall of the cylinder that faces away from the air outlet in its extending direction. The through hole is located on the bottom wall of the cylinder. The accommodation cylinder is suspended in the installation cavity, and the bottom wall of the cylinder is spaced from the cavity wall of the installation cavity. The bottom wall of the cylinder forms the channel wall of the air flow channel.

[0012] In an alternative embodiment, the appliance body includes a mouthpiece and a body assembly. The air outlet is located on the mouthpiece. The body assembly has a concave portion. The mouthpiece is connected to the body assembly to enclose the installation cavity in the concave portion. The air inlet is located between the mouthpiece and the body assembly.

[0013] In an alternative embodiment, the accommodation cylinder and the mouthpiece are connected by a snap connection. The body assembly is provided with a first convex portion on the cavity wall of the installation cavity, and the side wall of the accommodation cylinder is provided with a second convex portion. The second convex portion is located on the side of the first convex portion that faces away from the mouthpiece in the arrangement direction of the mouthpiece and the body assembly.

[0014] In an alternative embodiment, the body assembly includes a housing and a support. The support is located inside the housing. The support is hermetically connected to the housing to enclose the concave portion. The heating element is installed on the support.

[0015] In an alternative embodiment, the housing has a cylindrical structure extending towards the support, and the support is hermetically inserted into the cylindrical structure.

[0016] In an alternative embodiment, the heating element has a plurality of heating rib plates. The plurality of heating rib plates are connected at the center line of the through hole, and the plurality of heating rib plates are radially distributed outward from the center line of the through hole.

[0017] In an alternative embodiment, the heating element has magnetism. The heating element is configured with an induction coil arranged around the accommodation cylinder. The induction coil is installed on the appliance body, and the induction coil can generate an alternating magnetic field that causes the heating element to heat up.

[0018] The heat-not-burn appliance according to the above embodiments includes an appliance main body, a receiving cylinder, and a heating element. The appliance main body has an installation cavity, an air inlet, and an air outlet that communicate with the installation cavity. The receiving cylinder is located in the installation cavity. The receiving cylinder has a receiving cavity that communicates with the air outlet. The receiving cavity is used to accommodate an aerosol-forming substrate. A through hole communicating with the receiving cavity is provided on the cylinder wall of the receiving cylinder. The heating element is installed on the appliance main body and is located in the through hole. Since the heating element extends into the receiving cavity to insert into the aerosol-forming substrate for heating, and an air inlet passage is provided between the wall surface of the through hole and the outer side surface of the heating element, at least a part of the outer side surface of the heating element in the through hole forms the passage wall surface of the air inlet passage. The air inlet passage communicates the air inlet and the air outlet. In this way, a part of the heat of the heating element can be transferred to the aerosol-forming substrate by direct contact through insertion into the aerosol-forming substrate, and another part of the heat can be directly transferred to the air flow passing through the air inlet passage, and then the aerosol-forming substrate is heated in the form of hot air flow. While satisfying the uniform heating of the aerosol-forming substrate by the hot air flow heating method, the heat of the heating element is fully utilized, its heat utilization rate is improved, and the energy consumption of the entire heat-not-burn appliance is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic perspective view of a heat-not-burn appliance in an embodiment;

[0020] Figure 2 is a top view of a heat-not-burn appliance in an embodiment;

[0021] Figure 3 is Figure 2 a cross-sectional view taken along line A-A in

[0022] Figure 4 is Figure 2 a cross-sectional view taken along line B-B in

[0023] Figure 5 is a schematic view of the cooperation structure of a part of the support, the heating element, and the receiving cylinder in an embodiment;

[0024] Figure 6 is a schematic view of the cooperation structure of the receiving cylinder and the heating element in an embodiment;

[0025] Figure 7 is a schematic view of the cooperation structure of a part of the support and the heating element in an embodiment.

[0026] In the figure: 1. Appliance main body; 11. Body assembly; 111. Housing; 112. Cavity; 113. Cylindrical structure; 114. First convex part; 115. Support; 116. Concave part; 12. Suction nozzle part; 121. Air outlet; 13. Installation cavity; 14. Air inlet; 2. Accommodating cylinder; 21. Second convex part; 22. Accommodating cavity; 23. Through hole; 3. Heating element; 31. Installation end; 32. Insertion end; 33. Heating rib plate; 4. Induction coil; 5. Air flow channel; 51. Annular channel; 52. End air duct. Detailed implementation manners

[0027] The present application will be further described in detail below in conjunction with the accompanying drawings through specific implementation manners. Similar elements in different implementation manners adopt related similar element numbers. In the following implementation manners, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0028] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various implementation manners, and the operation steps involved in each embodiment can also be reordered or adjusted in an obvious manner for those skilled in the art. Therefore, the specification and the drawings are only for clearly describing a certain embodiment, and do not mean to be the necessary composition and / or sequence.

[0029] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0030] An embodiment of the present application discloses a heat-not-burn appliance, which is used to heat an aerosol-forming substrate to generate an aerosol for the user to use.

[0031] For the heat-not-burn appliance disclosed in the embodiment of the present application, please refer to Figures 1 to 7, including an appliance body 1, a receiving cylinder 2, and a heating element 3. The appliance body 1 is the overall framework structure of the heat-not-burn appliance. The appliance body 1 has an installation cavity 13, and also has an air inlet 14 and an air outlet 121 that communicate with the installation cavity 13. The air inlet 14 allows external cold air to enter, and the air outlet 121 allows an aerosol generation substrate to be inserted, and can also enable the aerosol generated by heating the aerosol generation substrate to be discharged from the air outlet 121.

[0032] The receiving cylinder 2 is located within the installation cavity 13. The receiving cylinder 2 can be fixedly installed on the cavity wall of the installation cavity 13 to fix the position of the receiving cylinder 2 within the installation cavity 13. The receiving cylinder 2 has a receiving cavity 22 that communicates with the air outlet 121. The receiving cavity 22 is used to accommodate the aerosol generation substrate. The aerosol generation substrate can be directly inserted into the receiving cavity 22 from the air outlet 121 to achieve the installation of the aerosol generation substrate in the heat-not-burn appliance. Through holes 23 that communicate with the receiving cavity 22 are provided on the cylinder wall of the receiving cylinder 2.

[0033] In one embodiment, please refer to Figures 3 to 6 , the receiving cylinder 2 can adopt a cylindrical structure with one end open and one end blocked. The open end of the receiving cylinder 2 can communicate with the air outlet 121 of the installation cavity 13 for the insertion of the aerosol generation substrate. The cylinder wall of the blocked end of the receiving cylinder 2 is the bottom wall of the receiving cylinder 2. Through holes 23 that communicate with the receiving cavity 22 can be provided on the bottom wall or the side wall of the receiving cylinder 2.

[0034] In one embodiment, the heating element 3 is installed on the appliance body 1. The heating element 3 is located within the through hole 23. The heating element 3 can be installed on the appliance body 1 inside or outside the installation cavity 13. The heating element 3 extends from the through hole 23 into the receiving cavity 22 to insert into the aerosol generation substrate within the receiving cavity 22. The heating element 3 can heat the aerosol generation substrate by directly contacting the aerosol generation substrate to improve the heating efficiency of the heating element 3.

[0035] An air intake channel is provided between the wall surface of the through hole 23 and the outer side surface of the heating element 3 within the through hole 23. The air intake channel communicates the air inlet 14 and the air outlet 121. At least a part of the outer side surface of the heating element 3 within the through hole 23 forms the channel wall surface of the air intake channel. That is, the air flow within the air intake channel can contact the outer side surface of the heating element 3, enabling the heating element 3 to transfer part of its heat to the air flow passing through the air intake channel. The air flow within the air intake channel is heated and then enters the receiving cavity 22 to heat the aerosol generation substrate in the form of hot air flow. In this way, part of the heat of the heating element 3 is directly transferred to the aerosol generation substrate, and the other part of the heat is transferred to the air flow passing through the air intake channel and then transferred to the aerosol generation substrate in the form of hot air flow. On the one hand, it can improve the heating uniformity of the aerosol generation substrate, and on the other hand, it can also improve the heat utilization rate of the heating element 3 and reduce the energy consumption of the entire heat-not-burn appliance.

[0036] In one embodiment, please continue to refer to Figures 3 to 6 , the heating element 3 may be extended in the extending direction of the accommodating cylinder 2. The heating element 3 has a mounting end 31 and an insertion end 32 located at both ends of its extending direction. The mounting end 31 of the heating element 3 can be fixedly installed on the appliance body 1. More specifically, the mounting end 31 of the heating element 3 can be directly installed on the cavity wall of the installation cavity 13. The heating element 3 extends towards the accommodating cylinder 2. After passing through the through hole 23, the heating element 3 extends into the accommodating cavity 22 of the accommodating cylinder 2. The insertion end 32 of the heating element 3 is located in the accommodating cavity 22. The insertion end 32 of the heating element 3 can be set as a tip to facilitate the insertion end 32 of the heating element 3 to pierce into the aerosol generating matrix.

[0037] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 6 , the outer surface of the heating element 3 arranged along its extending direction is the outer side surface of the heating element 3. The through hole 23 can be set as a round hole, a square hole or other special-shaped hole structures; inside the through hole 23, the outer side surface of the heating element 3 and the hole wall surface of the through hole 23 are arranged at intervals, so that the air inlet channel located between the outer side surface of the heating element 3 and the hole wall surface of the through hole 23 is arranged around the heating element 3. In this way, the contact area between the air flow flowing through the air inlet channel and the heating element 3 can be increased, thereby further increasing the heat transferred by the heating element 3 to the air flow in the air inlet channel, which helps to further improve the heat utilization rate of the heating element 3.

[0038] In other embodiments, a part of the outer side surface of the heating element 3 in the through hole 23 is attached to the hole wall surface of the through hole 23, and the other part of the outer side surface is arranged at intervals with the hole wall surface of the through hole 23. In this way, an air inlet channel can also be formed between the outer side surface of the heating element 3 and the hole wall surface of the through hole 23, and the air flow flowing through the air inlet channel can also contact the heating element 3 to facilitate heating the aerosol generating matrix in the form of hot air flow.

[0039] In some embodiments, please refer to Figures 2 to 6 , both the heating element 3 and the through hole 23 are located at the central position of the accommodating cylinder 2 in the radial direction of the accommodating cylinder 2. In this way, the heat of the heating element 3 is transferred towards the radial outside, which helps to reduce the heat loss of the heating element 3, thereby improving the energy consumption of the heating element 3 and the entire heat-not-burn appliance.

[0040] In one embodiment, please refer to Figures 2 to 7, the heating element 3 has a plurality of heating ribs 33 arranged in its extending direction, and the plurality of heating ribs 33 are connected at the center line of the through hole 23. The center line of the through hole 23 can be understood as the axis passing through the symmetric center of the circular or square through hole 23 or the geometric center of other irregularly shaped through holes 23. This axis is arranged in the extending direction of the through hole 23 and coincides with the axis of the receiving cylinder 2; the plurality of heating ribs 33 are radially distributed outward from the center line of the through hole 23 to the periphery or to the radially outer side of the circular through hole 23.

[0041] In one embodiment, four heating ribs 33 can be provided, and the cross-sectional shape of the heating element 3 in the cross-section perpendicular to its extending direction is cross-shaped. Or in another embodiment, eight heating ribs 33 can be provided, and the cross-sectional shape of the heating element 3 in the cross-section perpendicular to its extending direction is star-shaped.

[0042] Such a structure of the heating element 3 with the plurality of heating ribs 33 arranged radially outward to the periphery helps to increase the contact area between the airflow in the intake passage and the heating element 3, thereby improving the heat transferred from the heating element 3 to the airflow in the intake passage, and further improving the heat utilization rate of the heating element 3.

[0043] In other embodiments, the cross-sectional shape of the heating element 3 in the cross-section perpendicular to its extending direction can also be circular. In this way, it can also ensure that the airflow flowing through the intake passage contacts the heating element 3, that is, the heating element 3 can transfer part of its heat to the airflow flowing through the intake passage to realize the heating of the aerosol-forming substrate by the hot airflow.

[0044] In some embodiments, please refer to Figure 3 and Figure 4 , the non-combustible heating appliance adopts a side intake method. The intake port 14 corresponds to the accommodation cavity 22 in the extending direction of the receiving cylinder 2, and the intake port 14 is located radially outside the receiving cylinder 2 in the radial direction of the receiving cylinder 2; the non-combustible heating appliance has an air flow passage 5. The air flow passage 5 communicates the intake port 14 with the intake passage or communicates the intake port 14 with the through hole 23 on the receiving cylinder 2. The air flow passage 5 is located in the installation cavity 13. The cylinder side wall of the receiving cylinder 2 forms the channel wall of the air flow passage 5. The intake port 14 is located on the side of the air flow passage 5 facing the air outlet 121 in the extending direction of the receiving cylinder 2, and the intake port 14 is located on the cavity wall of the installation cavity 13. In one embodiment, the air flow passage 5 is arranged around the cylinder side wall of the receiving cylinder 2; in another embodiment, a part of the cylinder side wall of the receiving cylinder 2 contacts the cavity wall of the installation cavity 13, and the air flow passage 5 is located between the cylinder side wall of the receiving cylinder 2 and the cavity wall of the installation cavity 13.

[0045] In this way, the air flow channel 5 is arranged on the radial outer side of the accommodating cylinder 2, so that the cylinder side wall of the accommodating cylinder 2 forms the channel wall of the air flow channel 5. The heat transferred from the heating element 3 to the accommodating cylinder 2 can be used to heat the air flow flowing through the air flow channel 5, so as to improve the heat utilization rate of the heating element 3 and the whole heat-not-burn appliance, and reduce the energy consumption of the heat-not-burn appliance.

[0046] In other embodiments, the air flow channel 5 can also be arranged on the side of the accommodating cavity 22 facing away from the air outlet 121 in the axial direction of the accommodating cylinder 2, and the air inlet 14 can be arranged on the side of the air flow channel 5 facing away from the accommodating cavity 22 in the axial direction of the accommodating cylinder 2, as long as the cold air entering the heat-not-burn appliance from the air inlet 14 passes through the air inlet channel and is heated by the heating element 3 before entering the accommodating cavity 22.

[0047] Further, in one embodiment, please continue to refer to Figure 3 and Figure 4 , the bottom wall of the accommodating cylinder 2 and the air outlet 121 are arranged in opposite directions in the extending direction of the accommodating cylinder 2. The through hole 23 on the accommodating cylinder 2 is arranged on the bottom wall. The part of the accommodating cylinder 2 close to the air outlet 121 in its extending direction is installed in the installation cavity 13, so that the bottom wall of the accommodating cylinder 2 is suspended in the installation cavity 13. The bottom wall of the accommodating cylinder 2 is spaced from the cavity wall of the installation cavity 13. The bottom wall of the accommodating cylinder 2 also forms the channel wall of the air flow channel 5. In this way, the air flow channel 5 includes an annular channel 51 located on the radial outer side of the accommodating cylinder 2 and surrounding the accommodating cylinder 2, and also includes an end air duct 52 located between the bottom wall of the accommodating cylinder 2 and the cavity wall of the installation cavity 13. The air flow entering the annular channel 51 from the air inlet 14 flows towards the bottom wall of the accommodating cylinder 2 and into the end air duct 52, and enters the accommodating cavity 22 through the through hole 23 on the bottom wall of the accommodating cylinder 2.

[0048] In other embodiments, the accommodating cylinder 2 can also be clamped in the installation cavity 13 in its extending direction. The bottom wall of the accommodating cylinder 2 is attached to the cavity wall of the installation cavity 13. A groove communicating the annular channel 51 and the through hole 23 can be provided on the bottom wall of the accommodating cylinder 2 or on the cavity wall of the installation cavity 13 attached to the bottom wall of the accommodating cylinder 2. The air flow in the annular channel 51 can enter the accommodating cavity 22 through the groove and the through hole 23.

[0049] In this way, the cold air flow entering the heat-not-burn appliance passes through the bottom wall of the accommodating cylinder 2, and the heat transferred from the heating element 3 to the bottom wall of the accommodating cylinder 2 can also be used to preheat the cold air flow, so as to improve the heat utilization rate of the heating element 3.

[0050] In one embodiment, please refer to Figure 3 and Figure 4, the appliance body 1 includes a mouthpiece member 12 and a body assembly 11. An air outlet 121 is provided on the mouthpiece member 12. The aerosol - generating substrate can be inserted into the accommodation cavity 22 along the air outlet 121 on the mouthpiece member 12. The mouthpiece member 12 is not the part that contacts the user's mouth during the use of the heat - not - burn appliance. The mouthpiece member 12 only provides an entrance for the aerosol - generating substrate to be inserted into the accommodation cavity 22. The body assembly 11 has a concave portion 116. The mouthpiece member 12 and the body assembly 11 can be connected by snap - fit or by screw connection. The mouthpiece member 12 covers the notch of the concave portion 116 so that the mouthpiece member 12 and the body assembly 11 enclose an installation cavity 13.

[0051] In other embodiments, the concave portion 116 can also be provided on the mouthpiece member 12. After the mouthpiece member 12 and the body assembly 11 are connected, the body assembly 11 covers the notch of the concave portion 116 on the mouthpiece member 12 so that the mouthpiece member 12 and the body assembly 11 enclose an installation cavity 13.

[0052] In some embodiments, please refer to Figure 4 , for the convenience of processing the air inlet 14, the air inlet 14 is provided between the mouthpiece member 12 and the body assembly 11, so that the air inlet 14 is formed by the enclosure of the mouthpiece member 12 and the body assembly 11. Specifically, by providing a concave portion on the mouthpiece member 12 and / or the body assembly 11, after the mouthpiece member 12 and the body assembly 11 are connected, the mouthpiece member 12 and the body assembly 11 enclose an air inlet 14 communicating with the installation cavity 13 at the concave portion.

[0053] In other embodiments, the air inlet 14 can also be provided on the barrel wall of the accommodation cylinder 2, or can also be provided on the body assembly 11 or the mouthpiece member 12. The air inlet 14 can be processed by opening a hole on the barrel wall of the accommodation cylinder 2, the cavity wall of the installation cavity 13 of the body assembly 11, or the cavity wall of the installation cavity 13 of the mouthpiece member 12.

[0054] In one embodiment, please refer to Figures 3 to 6 , the accommodation cylinder 2 is installed in the installation cavity 13. The accommodation cylinder 2 can be connected to the mouthpiece member 12 by snap - fit or by screw connection. During the connection process of the mouthpiece member 12 and the body assembly 11, the part of the accommodation cylinder 2 near the bottom wall of the barrel is placed in the concave portion 116. After the mouthpiece member 12 and the body assembly 11 are connected, the installation and fixation of the accommodation cylinder 2 in the installation cavity 13 are achieved.

[0055] Of course, the accommodation cylinder 2 can also be connected to the cavity wall of the installation cavity 13 on the body assembly 11 by snap - fit, or an outer flange is provided on the accommodation cylinder 2, and the outer flange is clamped between the mouthpiece member 12 and the body assembly 11 in the extending direction of the accommodation cylinder 2 to achieve the fixation of the accommodation cylinder 2 in the installation cavity 13, or the accommodation cylinder 2 is press - fitted between the mouthpiece member 12 and the body assembly 11 in its length direction, and the bottom wall of the barrel of the accommodation cylinder 2 can be attached to the body assembly 11.

[0056] Please continue to refer to Figure 3 and Figure 5 In an embodiment where the nozzle member 12 and the receiving cylinder 2 are connected by snap-fitting, a first convex portion 114 may be provided on the cavity wall of the installation cavity 13 on the body assembly 11, and a second convex portion 21 may be provided on the cylindrical side wall of the receiving cylinder 2. The second convex portion 21 extends towards the radially outer side of the receiving cylinder 2. During the connection process of the nozzle member 12 and the body assembly 11, the second convex portion 21 on the receiving cylinder 2 crosses the first convex portion 114 on the body assembly 11 in the extending direction of the receiving cylinder 2. After the nozzle assembly is connected to the body assembly 11 in place, the first convex portion 114 and the second convex portion 21 abut against each other in the extending direction of the receiving cylinder 2. Combining with the snap structure between the nozzle member 12 and the receiving cylinder 2, the receiving cylinder 2 can be restricted from shaking in the installation cavity 13 in the extending direction of the receiving cylinder 2, which helps to improve the structural stability of the heat-not-burn appliance.

[0057] Of course, in an embodiment where the nozzle member 12 and the receiving cylinder 2 are connected by threads, the second convex portion 21 on the receiving cylinder 2 and the first convex portion 114 on the body assembly 11 can also be omitted.

[0058] In one embodiment, the body assembly 11 includes a housing 111. The internal space of the housing 111 can form a concave portion 116. The housing 111 can form an installation cavity 13 with the nozzle member 12 after being connected to the nozzle member 12. The body assembly 11 further includes a support 115. The support 115 is located in the installation cavity 13 and is fixed on the inner side wall of the housing 111. The heating element 3 is installed on the support 115. The heating element 3 and the support 115 as a whole can be located in the installation cavity 13. The air inlet 14 can be provided on the housing 111, and the air flow channel 5 can be provided on the support 115. The air flow channel 5 communicates the air inlet 14 with the air inlet passage.

[0059] In another embodiment, please refer to Figure 3 and Figure 4 The body assembly 11 includes a housing 111 and a support 115. The housing 111 has a cavity 112 and an opening communicating with the cavity 112. The support 115 is located in the cavity 112. The support 115 can be installed on the inner side wall of the housing 111. The support 115 is hermetically connected to the housing 111. The support 115 and the housing 111 enclose a concave portion 116 at the opening of the housing 111. The heating element 3 is installed on the support 115, and the heating element 3 extends towards the concave portion 116.

[0060] Specifically, a cylindrical structure 113 extending towards the inner cavity 112 of the housing 111 may be provided at the opening of the housing 111 on the housing 111. The support 115 in the cavity 112 is hermetically inserted into the cylindrical structure 113, so that the housing 111, the cylindrical structure 113 and the support 115 enclose an inwardly concave portion 116 at the opening of the housing 111, and the first convex portion 114 is provided on the cylindrical structure 113.

[0061] Of course, in other embodiments, the cylindrical structure 113 may also be provided on the support 115, so that the cylindrical structure 113 and the housing 111 are hermetically inserted at the opening of the housing 111, so that the housing 111, the cylindrical structure 113 and the support 115 enclose an inwardly concave portion 116.

[0062] In one embodiment, please continue to refer to Figure 3 , the heating element 3 has magnetism, and the material of the heating element 3 includes magnetic materials. For example, the heating element 3 can be made of SUS430 and / or cold-rolled carbon steel for deep drawing, so that the heating element 3 can generate heat in an alternating magnetic field.

[0063] The heating element 3 is provided with an induction coil 4 arranged around the accommodating cylinder 2. The induction coil 4 can be wound on the cylindrical structure 113, or the induction coil 4 can also be wound on the side wall of the accommodating cylinder 2. After the induction coil 4 is energized, an alternating magnetic field can be generated at the position where the heating element 3 is located to ensure that the heating element 3 generates heat.

[0064] In other embodiments, the heating element 3 is not provided with an induction coil 4, and the heating element 3 uses a resistance heating method to heat the aerosol-forming substrate.

[0065] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art of the present invention, according to the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. A heating without burning device, characterized in that: include: The device body has a mounting cavity and an air inlet and an air outlet communicated with the mounting cavity; A accommodating tube, located in the installation cavity, the accommodating tube having an accommodating cavity communicated with the air outlet, the accommodating cavity being used to accommodate an aerosol generating matrix, and a through hole communicated with the accommodating cavity is provided on a tube wall of the accommodating tube; A heating element is mounted on the device body, the heating element is located in the through hole, and the heating element extends toward the accommodating cavity to be inserted into the aerosol generating matrix for heating; an air inlet channel is provided between the hole wall of the through hole and the outer side surface of the heating element, and the heating element forms a channel wall of the air inlet channel on at least part of the outer side surface in the through hole, and the air inlet channel connects the air inlet and the air outlet.

2. The heating without burning device according to claim 1, characterized in that: The air inlet passage is arranged around the heat generating element.

3. The heating without burning device according to claim 1, characterized in that: The heating-without-combustion device has an airflow channel, which is located in the installation cavity and arranged around the accommodating tube. The tube side wall of the accommodating tube forms the channel wall of the airflow channel, and the airflow channel connects the air inlet and the air inlet channel.

4. The heating without burning device according to claim 3, characterized in that: The accommodating tube has a tube bottom wall which is away from the air outlet in its extension direction, and the through hole is located on the tube bottom wall; the accommodating tube is suspended in the installation cavity, the tube bottom wall is spaced apart from the cavity wall of the installation cavity, and the tube bottom wall forms the channel wall of the airflow channel.

5. The heating without burning device according to claim 1, characterized in that: The device body includes a suction nozzle and a body component, the air outlet is located on the suction nozzle, the body component has an inner recess, the suction nozzle is connected to the body component to enclose the inner recess to form the installation cavity, and the air inlet is located between the suction nozzle and the body component.

6. The heating without burning device according to claim 5, characterized in that: The accommodating tube is connected to the suction nozzle piece by a snap-fit ​​connection, the main body component is provided with a first protrusion on the cavity wall of the mounting cavity, and the tube side wall of the accommodating tube is provided with a second protrusion, and the second protrusion is located on the side of the first protrusion facing away from the suction nozzle piece in the arrangement direction of the suction nozzle piece and the main body component.

7. The heating without burning device according to claim 5, characterized in that: The body component comprises a shell and a support, wherein the support is located inside the shell, the support is sealedly connected to the shell to enclose and form the inner recess, and the heating element is mounted on the support.

8. The heating without burning device according to claim 7, characterized in that: The shell has a cylindrical structure extending toward the support, and the support is sealed and plugged with the cylindrical structure.

9. The heating without burning device according to any one of claims 1 to 8, characterized in that: The heating element has a plurality of heating ribs, the plurality of heating ribs are connected at the center line of the through hole, and the plurality of heating ribs are radially distributed from the center line of the through hole to the periphery.

10. The heating without burning device according to any one of claims 1 to 8, characterized in that: The heating element has magnetism, and is provided with an induction coil arranged around the accommodating tube. The induction coil is mounted on the device body, and the induction coil can generate an alternating magnetic field to make the heating element generate heat.

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