Airflow heating device and aerosol generating equipment

Abstract

The utility model discloses an airflow heating device and aerosol generating equipment, the airflow heating device comprises a heat conduction piece and a heating piece, the heat conduction piece is provided with a first end and a second end which are axially opposite, and an accommodating structure and an airflow channel are formed in the heat conduction piece; an opening allowing at least part of the aerosol product to be inserted into the containing structure is formed in the first end of the heat conduction piece, and the containing structure is arranged to extrude the aerosol product and enable the aerosol product to deform at least in the radial direction of the heat conduction piece; the airflow channel penetrates from the second end of the heat conduction piece to the containing structure and is used for guiding airflow to enter the containing structure. The heating piece is arranged on the heat conduction piece and used for conducting generated heat to the heat conduction piece so as to heat airflow flowing through the heat conduction piece to form hot airflow. The aerosol product is extruded and promoted to deform by utilizing the accommodating structure, so that the porosity of the aerosol product can be reduced, pores in the product can be stabilized, the aerosol product can gather heat carried by hot air flow, and the heating efficiency and effect of the hot air flow are effectively enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosols, and in particular to an airflow heating device and an aerosol generating device. Background Art

[0002] An aerosol generating device is a type of aerosol generating device that utilizes the thermal effect of an electronic heating element to heat an aerosol generating substrate so that the aerosol generating substrate generates an aerosol without burning.

[0003] Some existing aerosol generating devices use hot air flow to achieve heating and atomization of aerosol products (such as cigarettes, etc.). Since aerosol products usually have a large porosity and the pores in aerosol products are relatively unstable, a very high temperature hot air flow is often required to fully heat the aerosol products and generate aerosols, which not only affects the heating efficiency of the air flow, but also increases the energy consumption of the aerosol generating device. Utility Model Content

[0004] The utility model aims to provide an airflow heating device and an aerosol generating device using the airflow heating device, aiming to enhance the heating effect of the hot airflow.

[0005] According to a first aspect, an embodiment provides an airflow heating device for an aerosol generating device, the airflow heating device comprising:

[0006] A heat conductive member having a first end and a second end opposite to each other in the axial direction thereof, wherein a receiving structure and an airflow channel are formed inside the heat conductive member, wherein the first end of the heat conductive member is provided with an opening for allowing at least part of the aerosol product to be inserted and received in the receiving structure; the receiving structure is configured to be able to squeeze the aerosol product so that the aerosol product is deformed at least in the radial direction of the heat conductive member; the airflow channel runs through from the second end of the heat conductive member to the receiving structure, so as to guide airflow into the receiving structure; and

[0007] The heating element is used to generate heat; the heating element is arranged on the heat-conducting element so that the heat generated by the heating element can be transferred to the heat-conducting element, so that the heat-conducting element heats the airflow flowing through it to form a hot airflow.

[0008] In one embodiment, the receiving structure includes a receiving groove cavity; the notch of the receiving groove cavity is the opening, or the notch of the receiving groove cavity is directly connected to the opening; wherein:

[0009] In the direction from the first end of the heat conducting member to the second end, the cross-sectional area of ​​the receiving groove cavity gradually decreases; the air outlet of the air flow channel is arranged on the groove peripheral wall and / or groove bottom wall of the receiving groove cavity.

[0010] In one embodiment, the receiving structure includes:

[0011] A receiving groove cavity, wherein the notch of the receiving groove cavity is the opening, or the notch of the receiving groove cavity is directly opposite to and communicates with the opening; and

[0012] An extrusion protrusion protrudes from the bottom wall of the receiving groove cavity and is arranged in the receiving groove cavity, and a preset gap is formed between the extrusion protrusion and the groove peripheral wall of the receiving groove cavity;

[0013] The air outlet of the air flow channel is arranged on the bottom wall of the receiving groove cavity and / or the surface of the extrusion protrusion.

[0014] In one embodiment, in a direction from the first end of the heat conducting member toward the second end, a cross-sectional area of ​​the extrusion protrusion gradually increases.

[0015] In one embodiment, the axis center line of the extrusion protrusion coincides with the axis center line of the receiving groove cavity.

[0016] In one embodiment, the receiving structure includes:

[0017] A receiving groove cavity, wherein the notch of the receiving groove cavity is the opening, or the notch of the receiving groove cavity is directly opposite to and communicates with the opening; and

[0018] An extrusion protrusion protrudes from a peripheral wall of the receiving groove cavity and is disposed in the receiving groove cavity;

[0019] The air outlet of the air flow channel is arranged on the bottom wall of the receiving groove cavity.

[0020] In one embodiment, a heating chamber is also formed inside the heat conductive element; in the axial direction of the heat conductive element, the heating chamber is located on the side of the receiving structure away from the opening, and the heating chamber is isolated from the receiving structure and the air flow channel; the heating element is disposed in the heating chamber.

[0021] In one embodiment, the heat-generating chamber comprises an annular groove cavity which is arranged along the circumference of the heat-conducting component, the notch of the annular groove cavity is arranged at the second end of the heat-conducting component, and the heat-generating component is arranged in the annular groove cavity; in the radial direction of the heat-conducting component, the airflow channel is arranged on the inner side and / or outer side of the annular groove cavity.

[0022] According to the second aspect, an embodiment provides an aerosol generating device, comprising a host device and the airflow heating device described in the first aspect, wherein an air outlet channel and an air inlet channel are formed inside the host device, and the airflow heating device is connected and arranged between the air inlet channel and the air outlet channel; wherein the air outlet channel is connected to the heat conductor at the first end of the heat conductor, and the air inlet channel is connected to the heat conductor at the second end of the heat conductor.

[0023] In one embodiment, a clamping structure is provided in the air outlet channel; the clamping structure is used to clamp the aerosol product so that at least a portion of the aerosol product is confined in the containing structure.

[0024] According to the above-mentioned embodiment, the airflow heating device includes a heat conductive member and a heating member, the heat conductive member has a first end and a second end axially opposite to each other, a receiving structure and an airflow channel are formed inside the heat conductive member, the first end of the heat conductive member is provided with an opening that allows at least part of the aerosol product to be inserted into the receiving structure, and the receiving structure is configured to squeeze the aerosol product and cause the aerosol product to deform at least in the radial direction of the heat conductive member; the airflow channel runs from the second end of the heat conductive member to the receiving structure to guide the airflow into the receiving structure; the heating member is arranged on the heat conductive member to conduct the generated heat to the heat conductive member to heat the airflow flowing through the heat conductive member to form a hot airflow. By using the receiving structure to squeeze and cause the aerosol product to deform, the porosity of the aerosol product can be reduced and the pores inside the product can be stabilized, so that the aerosol product can gather the heat carried by the hot airflow, effectively enhancing the heating efficiency and effect of the hot airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The figure is a schematic diagram of the cross-sectional structure of an aerosol generating device according to an embodiment.

[0026] Figure 2 The figure is a schematic diagram of the three-dimensional structure of an airflow heating device according to an embodiment.

[0027] Figure 3 for Figure 2 Schematic diagram of the axial cross-sectional structure of the airflow heating device in FIG.

[0028] Figure 4 for Figure 2 Schematic diagram of the coordination relationship between the airflow heating device and the aerosol product.

[0029] Figure 5 The figure is a schematic diagram of the structure of an airflow heating device after radial sectioning according to one embodiment.

[0030] Figure 6 for Figure 5 Schematic diagram of the axial cross-sectional structure of the airflow heating device in FIG.

[0031] Figure 7 Figure 5 Schematic diagram of the coordination relationship between the airflow heating device and the aerosol product.

[0032] Figure 8 It is a schematic diagram of the axial cross-sectional structure of an airflow heating device according to another embodiment.

[0033] In the figure:

[0034] 10, heat conducting member; 10a, air flow channel; 10b, opening; 10c, heating chamber; 10d, receiving groove cavity; 10e, extrusion protrusion; 11, first end; 12, second end; 20, heating member; 30, clamping structure; 40, supporting member; 50, base member;

[0035] A, main unit; A1, air inlet channel; A2, air outlet channel; B, air flow heating device; C, aerosol product; C1, matrix section; C2, cooling section; C3, filtration section. DETAILED DESCRIPTION

[0036] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. 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, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and 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.

[0037] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0038] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0039] See also Figures 1 to 8The embodiment of the present application provides an aerosol generating device, such as an electronic cigarette device, an electronic atomizer, etc., which can be used to heat the aerosol generating matrix in the aerosol product C and generate a usable aerosol; the aerosol generating device includes a host device, an airflow heating device B, and other functional components that exist as needed.

[0040] See also Figure 1 The host device A can usually be constructed by combining a body shell, internal pipes, a control module including a power supply, etc. The user can hold, move, operate and use the aerosol generating device with the help of the host device A.

[0041] Typically, the host device A is internally configured with an airflow channel for guiding the airflow in and out. For example, an air inlet channel A1 for guiding external air into the host device A, and an air outlet channel A2 for guiding aerosol to be discharged from the host device A along with the airflow are constructed by means of internal pipes assembled inside the body shell.

[0042] See also Figures 1 to 8 The airflow heating device B is arranged inside the main unit A and is connected between the air inlet channel A1 and the air outlet channel A2; it can also be understood that the airflow heating device B, as a functional component constituting a component of the airflow channel, can be constructed inside the main unit A to form a heating area of ​​the aerosol generating device.

[0043] For example, see Figure 1 Most common aerosol products C adopt a columnar structure. Along the length direction of the aerosol product C, the aerosol product can usually be divided into a matrix section C1, a cooling section C2 and a filtration section C3; wherein, the matrix section C1 is usually formed by a solid aerosol matrix in granular or filamentous form such as medicinal materials, spices, tobacco, etc., and is packaged and shaped by a packaging material with high heat resistance (such as paper materials specially used for cigarettes, polyamide ester materials, etc.).

[0044] When the aerosol product C is used in conjunction with an aerosol generating device, the aerosol product C can be plugged into the aerosol generating device in a pluggable manner through the air outlet channel A2, so that the matrix segment C1 is accommodated in the airflow heating device B; the host device A is used to control the airflow heating device B to generate heat; on the one hand, the airflow flowing through the airflow heating device B can be heated to form a hot airflow, and then in the process of the hot airflow flowing through the matrix segment C1, the hot airflow is used to heat the aerosol generating matrix; on the other hand, the contact relationship between the airflow heating device B and the matrix segment C1 is utilized to transfer part of the heat to the matrix segment C1, so as to heat and atomize the aerosol generating matrix.

[0045] Of course, some aerosol products C may only be the substrate segment C1; other aerosol products C may also be a combination of the substrate segment C1 and the cooling segment C2, or a combination of the substrate segment C1 and the filtering segment C3. It is understood that the aerosol product C does not constitute a limitation on the aerosol generating device.

[0046] In the aerosol generating device, the host device A and the like can refer to the prior art and will not be described in detail here; the following mainly introduces the airflow heating device B and its related structure, please refer to Figures 2 to 8 The airflow heating device B includes a heat conducting element 10 and a heating element 20 .

[0047] See also Figures 2 to 8 The heat conductive member 10 is roughly a hollow cylindrical structure with a preset length, and the heat conductive member 10 is connected and arranged between the air inlet channel A1 and the air outlet channel A2; for the convenience of distinction and description, the length direction of the heat conductive member 10 is defined as the axial direction of the heat conductive member 10, the direction perpendicular to the axial direction of the heat conductive member 10 is defined as the radial direction of the heat conductive member 10, the direction around the axial direction of the heat conductive member 10 is defined as the circumferential direction of the heat conductive member 10, the end of the heat conductive member 10 connected with the air outlet channel A2 in its axial direction is defined as the first end 11 of the heat conductive member 10, and the end of the heat conductive member 10 connected with the air inlet channel A1 in its axial direction is defined as the second end 12 of the heat conductive member 10, that is, the first end 11 and the second end 12 of the heat conductive member 10 are two opposite ends of the heat conductive member 10 in its axial direction.

[0048] See also Figure 2 , Figure 3 , Figure 6 and Figure 8 An air flow channel 10a and a receiving structure are formed inside the heat conductive member 10, and an opening 10b connecting the receiving structure and the air outlet channel A2 is provided at the first end 11 of the heat conductive member 10; wherein, the opening 10b allows the aerosol product C (specifically at least a portion of the matrix segment C1) inserted through the air outlet channel A2 to be finally inserted and received in the receiving structure.

[0049] The airflow channel 10a passes through the second end 12 of the heat conducting member 10 to the receiving structure, so as to guide the airflow from the air inlet channel A1 into the receiving structure. For example, the airflow channel 10a can pass through the second end 12 of the heat conducting member 10 to the receiving structure in a straight line along the axial direction of the heat conducting member 10, or the airflow channel 10a can pass through the second end 12 of the heat conducting member 10 to the receiving structure along a folded line path, a curved path, or a spiral path; all of these will not be described in detail here.

[0050] The receiving structure is configured to be capable of squeezing the matrix segment C1 received therein, so as to enable the matrix segment C1 to be deformed at least in the radial direction of the heat conducting member 10 .

[0051] For example, please combine Figure 3 and Figure 8 The receiving structure can be configured as a groove cavity structure or a channel structure having a smaller inner diameter than the air outlet channel A2 and the opening 10b, that is, the inner diameter of the receiving structure is smaller than the outer diameter of the matrix segment C1; in the process of inserting the matrix segment C1 into the receiving structure, the size difference between the receiving structure and the matrix segment C1 is utilized to form an extrusion force similar to a wrapping type on the matrix segment C1, thereby causing the matrix segment C1 to gather and deform toward its axial centerline, so that the internal structure of the matrix segment C1 becomes denser than the initial state, the porosity is significantly reduced, and stable pores are maintained in the receiving structure.

[0052] For example, please combine Figure 6 and Figure 8 A receiving space communicating with the opening 10b can be provided inside the heat-conducting member 10, and a protruding structure can be provided at a specific position in the receiving space, so as to construct a receiving structure. After the matrix segment C1 is inserted into the receiving structure, the protruding structure can be used to squeeze the matrix segment C1 from the outer peripheral side or the axial bottom of the matrix segment C1, so as to cause the matrix segment C1 to deform, thereby reducing the porosity of the matrix segment C1 and stabilizing the internal pores of the matrix segment C1.

[0053] See also Figure 3 , Figure 4 , Figure 6 and Figure 7 The heating element 20 is mainly used to generate heat under the control of the host device B; for example, the heating element 20 can be made of electrothermal materials such as nickel-chromium alloy and iron-chromium alloy; accordingly, the host device A (such as the control module) is equipped with a control circuit electrically connected to the heating element 20, and the heating element 20 is powered by the control circuit, so that the heating element 20 can generate heat due to power. For another example, the heating element 20 can be made of ferromagnetic materials or alloy materials containing elements such as iron, nickel, cobalt, and titanium, or inorganic non-metallic materials with ferromagnetic properties such as ceramics and carbon fibers that have been magnetized; accordingly, the host device A is equipped with an electromagnetic coil that matches the heating element 20, and the electromagnetic coil is used to provide a changing electromagnetic field environment for the heating element 20, so that the heating element 20 can generate heat under the action of the alternating magnetic field.

[0054] In one embodiment, see Figure 3 , Figure 4 , Figure 6 and Figure 7The heating element 20 is arranged inside the heat-conducting element 10. Specifically, a heating chamber 10c is also formed inside the heat-conducting element 10. In the axial direction of the heat-conducting element 10, the heating chamber 10c is located on the side of the containing structure away from the outlet 10b, and the heating chamber 10c is isolated from or disconnected from the air flow channel 10a and the containing structure in terms of structural layout, and the heating element 20 is arranged in the heating chamber 10c. It can be understood that, compared with the containing structure, in the axial direction of the heat-conducting element 10, the heating element 20 and the air flow channel 10a are equivalent to being located on the same side of the containing structure.

[0055] Therefore, the heat generated by the heating element 10 can be quickly transferred to the airflow flowing through the airflow channel 10 by the heat conductive element 10 to heat and form a hot airflow. When the hot airflow enters the containment structure and flows through the aerosol product C, the aerosol generating matrix can be heated and atomized, thereby realizing a heating mode based mainly on hot airflow.

[0056] In other embodiments, the heating element 20 may be inserted or embedded in the heat conductive element 10 in other structural forms, or arranged on the outside of the heat conductive element 10 by winding, stacking, wrapping, etc.; all of these will not be elaborated here.

[0057] Based on this, see Figure 4 and Figure 7 , by means of the containment structure, an extrusion force is applied to the aerosol product C (specifically, the matrix segment C1), so that the aerosol generating matrix in the matrix segment C1 can be gathered due to the structural deformation of the matrix segment C1, thereby reducing the porosity inside the matrix segment C1, and keeping the internal pores of the matrix segment C1 in a stable state. After the heating element 20 generates heat (that is, after the aerosol generating device is started), the heat-conducting element 10 can transfer a part of the heat generated by the heating element 20 to the airflow flowing through the airflow channel 10a, so as to heat the airflow to form a hot airflow and enter the containment structure, so that the hot airflow can be concentrated on the matrix segment C1 that is squeezed and deformed, forming a hot airflow heating effect; at the same time, through the contact relationship between the heat-conducting element 10 and the matrix segment C1, the heat-conducting element 10 can also directly transfer another part of the heat generated by the heating element 20 to the matrix segment C1 that is squeezed and deformed.

[0058] Since the matrix segment C1 squeezed and deformed by the containing structure or the heat-conducting component 10 has a smaller porosity and a stable pore structure, it can effectively gather the heat carried by the hot air flow and the heat conducted by the heat-conducting component 10, thereby fully utilizing the heat, thereby creating favorable conditions for effectively improving the heating efficiency, enhancing the heating effect of the hot air flow, reducing the energy consumption of the aerosol generating equipment, and quickly generating aerosols.

[0059] In one embodiment, see Figures 2 to 4, the receiving structure includes a receiving groove cavity 10d formed inside the heat conductive member 10, and the receiving groove cavity 10d can be a tapered groove with a gradually decreasing inner diameter, a spherical groove, etc.; that is, the cross-sectional area of ​​the receiving groove cavity 10d gradually decreases from the groove side of the receiving groove cavity 10d toward the groove bottom side of the receiving groove cavity 10d; it can also be understood that in the direction from the first end 11 of the heat conductive member 10 to the second end 12 of the heat conductive member 10, the cross-sectional area of ​​the receiving groove cavity 10d gradually decreases. Among them, the opening 10b of the heat conductive member 10 can be the groove of the receiving groove cavity 10d, or it can be a structural part of the heat conductive member 10 that is directly opposite to the groove of the receiving groove cavity 10d; the air outlet of the air flow channel 10a is arranged on the groove bottom wall and the groove peripheral wall of the receiving groove cavity 10d, and the air inlet is arranged on the end surface of the second end 12 of the heat conductive member 10.

[0060] It can be understood that, with respect to the geometric shape of the receiving groove cavity 10d, the groove bottom wall of the receiving groove cavity 10d generally refers to a portion of the side wall that surrounds the groove body space of the receiving groove cavity 10d and is opposite to the groove opening of the receiving groove cavity 10d, and the groove peripheral wall of the receiving groove cavity 10d generally refers to another portion of the side wall between the groove bottom wall and the groove opening of the receiving groove cavity 10.

[0061] Therefore, when the matrix segment C1 is inserted into the receiving groove cavity 10d, the size change of the receiving groove cavity 10d can form a radially inward wrapping and squeezing force on the matrix segment C1, so that the matrix segment C1 produces a structural deformation that gathers toward its center, so that the heat carried by the hot air flow and the heat conducted by the heat conductor 10 can act more concentratedly on the squeezed and deformed matrix segment C1, effectively improving the heating efficiency; and by utilizing the structural characteristics of the gradual size change of the receiving groove cavity 10d, the matrix segment C1 can be smoothly inserted and accommodated in the receiving groove cavity 10d through the opening 10b.

[0062] In some other embodiments, the receiving groove cavity 10d may also adopt a cylindrical groove with an equal inner diameter, and the inner diameter of the receiving groove cavity 10d is smaller than the inner diameter of the opening 10b and the outer diameter of the matrix segment C1. At the same time, the groove opening of the opening 10b or the receiving groove cavity 10d may be set as a tapered opening, so that the matrix segment C1 can be smoothly inserted into the receiving groove cavity 10d, and the matrix segment C1 is squeezed by the groove wall of the receiving groove cavity 10d and deformed radially inward; correspondingly, the air outlet of the airflow channel 10a may be set on the groove bottom wall of the receiving groove cavity 10d, so that the hot airflow can enter the interior of the squeezed and deformed matrix segment C1 facing the bottom of the matrix segment C1.

[0063] In one embodiment, see Figures 5 to 7The receiving structure includes a receiving groove cavity 10d and an extrusion protrusion 10e; wherein the receiving groove cavity 10d can be a cylindrical groove of equal inner diameter formed inside the heat conductive member 10, or it can be a variable diameter groove with a gradually decreasing inner diameter in the aforementioned embodiment; the opening 10b of the heat conductive member 10 can be a notch of the receiving groove cavity 10d, or it can be a structural part in the heat conductive member 10 that is directly opposite to and communicates with the notch of the receiving groove cavity 10d.

[0064] The extrusion protrusion 10e faces the groove opening of the receiving groove cavity 10d, and is arranged inside the receiving groove cavity 10d in the form of protruding from the groove bottom wall of the receiving groove cavity 10d; and there is a preset gap between the extrusion protrusion 10e and the groove peripheral wall of the receiving groove cavity 10d; correspondingly, the air inlet of the airflow channel 10a is arranged on the groove bottom wall of the receiving groove cavity 10d and the surface of the extrusion protrusion 10e.

[0065] Thus, after the matrix segment C1 is inserted into the receiving groove cavity 10e through the opening 10b, the extrusion protrusion 10e can be used to extrude the matrix segment C1 from the bottom end surface of the matrix segment C1, so that the aerosol-generating matrix in the matrix segment C1 is squeezed to the surrounding of the matrix segment C1 (that is, a part of the matrix segment C1 is squeezed between the extrusion protrusion 10e and the groove peripheral wall of the receiving groove cavity 10e), so that the matrix segment C1 undergoes radial outward structural deformation. Since the air inlet of the airflow channel 10a is arranged on the groove bottom wall of the receiving groove cavity 10d and the surface of the extrusion protrusion 10e, the hot air flow can directly and more concentratedly enter the interior of the matrix segment C1, thereby heating the area where the matrix segment C1 is squeezed and deformed, and enhancing the heating effect of the hot air flow.

[0066] In some embodiments, the extrusion protrusion 10e may adopt a conical protrusion structure, that is, the cross-sectional area of ​​the extrusion protrusion 10e gradually decreases from one end of the extrusion protrusion 10e close to the bottom wall of the receiving groove cavity 10d to one end of the extrusion protrusion 10e away from the bottom wall of the receiving groove cavity 10d; it can also be understood that the cross-sectional area of ​​the extrusion protrusion 10e gradually increases in the direction from the first end 11 of the heat conductor 10 toward the second end 12 of the heat conductor 10. The surface of the extrusion protrusion 10e may adopt a curved surface structure. And the axis of the extrusion protrusion 10e coincides with the axis of the receiving groove cavity 10d, that is, the extrusion protrusion 10e is located at the geometric center of the receiving groove cavity 10d.

[0067] Therefore, by optimizing the structural form and position of the extrusion protrusion 10e, a uniform extrusion force can be applied to the matrix segment C1, so as to reduce the porosity of the matrix segment C1 and make the internal pore distribution of the matrix segment C1 more balanced and stable.

[0068] It should be noted that the “cross section” mentioned above can be understood as: the cross section formed by cutting the receiving groove cavity 10d or the extrusion protrusion 10e based on a plane perpendicular to the axial direction of the heat conductor 10, that is, the cross section of the receiving groove cavity 10d or the extrusion protrusion 10e.

[0069] In another embodiment, see Figure 8 The extrusion protrusion 10e can also be arranged to protrude from the peripheral wall of the receiving groove cavity 10d, for example, the extrusion protrusion 10e surrounds the axial line of the receiving groove cavity 10d and protrudes from the peripheral wall of the receiving groove cavity 10d; after the matrix segment C1 is inserted and accommodated in the receiving groove cavity 10d, the extrusion protrusion 10e can be used to apply an extrusion force to the matrix segment C1 from all sides, so that a local part of the matrix segment C1 undergoes radial inward structural deformation, which can also provide structural support for improving heating efficiency.

[0070] In one embodiment, see Figure 3 , Figure 4 , Figure 6 and Figure 7 The heating chamber 10c includes an annular groove cavity, which is arranged along the circumference of the heat-conducting member 10, and the notch of the annular groove cavity is set at the second end 12 of the heat-conducting member 10; accordingly, the number of airflow channels 10a is set to be multiple, and in the radial direction of the heat-conducting member 10, the multiple airflow channels 10a are evenly arranged on both sides of the inner and outer sides of the annular groove cavity. As for the heating element 20, it can be a heating wire arranged in the annular groove cavity in a winding form, or a heating net or a heating sheet arranged in the annular groove cavity.

[0071] Therefore, by placing the heating element 10 in the annular groove cavity, the spatial arrangement relationship between the airflow channel 10a and the heating element 10 can be utilized to achieve uniform heating of the airflow and ensure that the hot airflow can evenly enter the containing structure or the matrix segment C1, thereby achieving uniform heating and atomization of the extruded and deformed matrix segment C1.

[0072] In one embodiment, see Figure 1 A clamping structure 30 is also provided in the air outlet channel A2. The clamping structure 30 is mainly used to clamp the aerosol product C so as to stably restrict at least part of the matrix segment C1 in the receiving structure, thereby ensuring that the matrix segment C1 can maintain a stable pore after being squeezed, and preventing the aerosol product C from accidentally detaching from the aerosol generating device.

[0073] For example, see Figure 1, a support member 40 and a base member 50 are provided inside the host device A or the body shell; wherein, the air outlet channel A2 is provided through the support member 40, the air inlet channel A1 is provided through the base member 50, and the airflow heating device B (specifically the heat conducting member 10) is fixedly provided between the support member 40 and the base member 40; the clamping structure 30 is provided inside the support member 40 and is located near the air outlet of the air outlet channel A2, for example, the clamping structure 30 can adopt a ring structure with a certain elasticity. When the aerosol product C is inserted into the aerosol generating device through the air outlet channel A2 and the matrix segment C1 is accommodated in the accommodation structure, the filter segment C3 or the cooling segment C2 of the aerosol product C can be clamped by the clamping structure 30, so that the matrix segment C1 is stably confined in the accommodation structure.

[0074] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An airflow heating device, characterized in that: For an aerosol generating device, the airflow heating device comprises: A heat conductive member having a first end and a second end opposite to each other in the axial direction thereof, wherein a receiving structure and an airflow channel are formed inside the heat conductive member, wherein the first end of the heat conductive member is provided with an opening for allowing at least part of the aerosol product to be inserted and received in the receiving structure; the receiving structure is configured to be able to squeeze the aerosol product so that the aerosol product is deformed at least in the radial direction of the heat conductive member; the airflow channel runs through from the second end of the heat conductive member to the receiving structure, so as to guide airflow into the receiving structure; and The heating element is arranged on the heat-conducting element; the heating element is used to generate heat and conduct heat to the heat-conducting element, so that the heat-conducting element heats the airflow flowing through it to form a hot airflow.

2. The airflow heating device according to claim 1, characterized in that: The receiving structure includes a receiving groove cavity; the notch of the receiving groove cavity is the opening, or the notch of the receiving groove cavity is directly connected to the opening; wherein: In the direction from the first end of the heat conducting member to the second end, the cross-sectional area of ​​the receiving groove cavity gradually decreases; the air outlet of the air flow channel is arranged on the groove peripheral wall and / or groove bottom wall of the receiving groove cavity.

3. The airflow heating device according to claim 1, characterized in that: The receiving structure comprises: A receiving groove cavity, wherein the notch of the receiving groove cavity is the opening, or the notch of the receiving groove cavity is directly opposite to and communicates with the opening; and An extrusion protrusion protrudes from the bottom wall of the receiving groove cavity and is arranged in the receiving groove cavity, and a preset gap is formed between the extrusion protrusion and the groove peripheral wall of the receiving groove cavity; The air outlet of the air flow channel is arranged on the bottom wall of the receiving groove cavity and / or the surface of the extrusion protrusion.

4. The airflow heating device according to claim 3, characterized in that: In a direction from the first end to the second end of the heat conducting member, a cross-sectional area of ​​the extrusion protrusion gradually increases.

5. The airflow heating device according to claim 3, characterized in that: The axis center line of the extrusion protrusion coincides with the axis center line of the receiving groove cavity.

6. The airflow heating device according to claim 1, characterized in that: The receiving structure comprises: A receiving groove cavity, wherein the notch of the receiving groove cavity is the opening, or the notch of the receiving groove cavity is directly opposite to and communicates with the opening; and An extrusion protrusion protrudes from a peripheral wall of the receiving groove cavity and is disposed in the receiving groove cavity; The air outlet of the air flow channel is arranged on the bottom wall of the receiving groove cavity.

7. The airflow heating device according to any one of claims 1 to 6, characterized in that: A heating chamber is also formed inside the heat conductive member; in the axial direction of the heat conductive member, the heating chamber is located on the side of the receiving structure away from the opening, and the heating chamber is isolated from the receiving structure and the air flow channel; the heating member is arranged in the heating chamber.

8. The airflow heating device according to claim 7, characterized in that: The heating chamber includes an annular groove cavity arranged along the circumference of the heat-conducting component, the notch of the annular groove cavity is arranged at the second end of the heat-conducting component, and the heating component is arranged in the annular groove cavity; in the radial direction of the heat-conducting component, the air flow channel is arranged on the inner side and / or outer side of the annular groove cavity.

9. An aerosol generating device, characterized in that: It comprises a host device and an air flow heating device as described in any one of claims 1 to 8, wherein an air outlet channel and an air inlet channel are formed inside the host device, and the air flow heating device is connected and arranged between the air inlet channel and the air outlet channel; wherein the air outlet channel is connected to the heat conductor at a first end of the heat conductor, and the air inlet channel is connected to the heat conductor at a second end of the heat conductor.

10. An aerosol generating device according to claim 9, characterized in that A clamping structure is provided in the air outlet channel; the clamping structure is used to clamp the aerosol product so that at least a part of the aerosol product is confined in the containing structure.

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