WO2023035854A1 - 加热组件及气溶胶产生装置 - Google Patents

加热组件及气溶胶产生装置 Download PDF

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Publication number
WO2023035854A1
WO2023035854A1 PCT/CN2022/111894 CN2022111894W WO2023035854A1 WO 2023035854 A1 WO2023035854 A1 WO 2023035854A1 CN 2022111894 W CN2022111894 W CN 2022111894W WO 2023035854 A1 WO2023035854 A1 WO 2023035854A1
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WO
WIPO (PCT)
Prior art keywords
heating
cross
cavity
introduction
sectional shape
Prior art date
Application number
PCT/CN2022/111894
Other languages
English (en)
French (fr)
Inventor
沈丕发
何丹充
邢凤雷
Original Assignee
深圳麦克韦尔科技有限公司
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Publication of WO2023035854A1 publication Critical patent/WO2023035854A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/70—Manufacture
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Definitions

  • the invention relates to the field of atomization, more specifically, to a heating assembly and an aerosol generating device.
  • the heat-not-burn atomizing device is an aerosol generating device that heats the atomized material to form an inhalable aerosol by means of low-temperature heat-not-burn.
  • the heating methods of aerosol generating devices are usually tubular peripheral heating or central embedded heating.
  • tubular peripheral heating means that the heating element surrounds the aerosol generating matrix.
  • the heating element is usually designed as a hollow circular tube. After inserting the aerosol generating substrate, the circle where the outline of the cross section of the aerosol generating substrate is located and the circle of the inner wall of the heating element The contact is coincident or tangent.
  • This structure has at least the following disadvantages: the heat conduction distance from the outer surface of the aerosol generating substrate to the center is large, and the temperature difference between the surface and core of the aerosol generating substrate is large.
  • the technical problem to be solved by the present invention is to provide an improved heating assembly and an aerosol generating device with the heating assembly for the above-mentioned defects of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem is to construct a heating assembly, including a heating tube and a guide part axially connected with the heating tube, and a tube for accommodating and heating the aerosol-generating substrate is formed in the heating tube.
  • a heating cavity, the cross-sectional profile of the heating cavity is polygonal;
  • An introduction cavity communicating with the heating cavity for introducing the aerosol-generating substrate is formed in the guide member, the introduction cavity has a first end far away from the heating cavity and a second end close to the heating cavity , the cross-sectional shape of the first end of the introduction chamber matches the cross-sectional shape of the aerosol generating substrate to be heated, and the cross-sectional shape of the second end of the introduction chamber matches the heating chamber
  • the shape of the cross-section of the inlet cavity is matched with that of the first end and the second end is a gradual transition.
  • the heating tube is integrally formed with the guiding component.
  • At least part of the cavity wall of the heating chamber is capable of squeezing the aerosol-generating substrate;
  • the state of the aerosol-generating matrix, the diameter of the largest inscribed circle is smaller than the outer diameter of the aerosol-generating matrix before being squeezed.
  • the diameter of the largest inscribed circle is 3-9 mm.
  • the diameter of the largest inscribed circle is 0.2-2.0 mm smaller than the outer diameter of the aerosol-generating substrate before extrusion.
  • the maximum distance from the center of the largest inscribed circle to the cross-sectional outline of the heating chamber is greater than the radius of the largest inscribed circle.
  • the cross-sectional profile of the heating cavity is a regular polygon.
  • every two adjacent edges of the regular polygon are connected by a circular arc transition.
  • the cross-sectional profile of the heating chamber is a Relo polygon.
  • a plurality of airflow channels are formed between the outer wall of the aerosol-generating substrate and the wall of the heating chamber;
  • the plurality of airflow passages are respectively located at junctions of every two edges of the heating chamber.
  • the cross-sectional shape of the first end of the introduction lumen is different from the cross-sectional shape of the second end.
  • the cross-sectional shape of the first end of the introduction cavity is circular or polygonal.
  • the cross-sectional area of the second end of the introduction lumen is smaller than the cross-sectional area of the first end.
  • the cross-sectional area of the first end of the introduction cavity is greater than or equal to the cross-sectional area of the aerosol-generating substrate to be heated.
  • the cross-sectional area of the second end of the introduction chamber is smaller than or equal to the cross-sectional area of the heating chamber.
  • a transition cavity communicating between the introduction cavity and the heating cavity is formed in the guide member.
  • the cross-sectional shape of the transition chamber matches the cross-sectional shape of the heating chamber.
  • an opening communicating with the first end of the introduction cavity is further formed in the guide member.
  • the cross-sectional shape of the open cavity matches the cross-sectional shape of the aerosol-generating substrate to be heated.
  • the cross-sectional area of the opening is greater than or equal to the cross-sectional area of the first end of the introduction cavity.
  • the present invention also provides an aerosol generating device, comprising the heating assembly described in any one of the above.
  • the aerosol-generating substrate can be smoothly introduced into the heating chamber through the introduction chamber.
  • the aerosol-generating substrate when the aerosol-generating substrate is accommodated in the heating chamber, it can also be squeezed inward by at least part of the wall of the heating chamber; after the aerosol-generating substrate is squeezed and deformed, the distance from its radial surface to the center is reduced, thereby shortening
  • the air inside the atomized matrix in the aerosol-generating matrix is squeezed out, and the density of the atomized matrix increases, which can improve the heat conduction efficiency and improve the large temperature difference between the surface and core of the aerosol-generating matrix and the low heat conduction efficiency. , The problem of long warm-up time.
  • Fig. 1 is a schematic diagram of the three-dimensional structure of the heating assembly in the first embodiment of the present invention
  • Fig. 2 is a schematic transverse cross-sectional view of the heating assembly shown in Fig. 1 containing an aerosol-generating substrate;
  • Fig. 3 is a schematic longitudinal sectional view of the heating assembly shown in Fig. 1;
  • Fig. 4 is a schematic diagram of the cross-sectional outline of the heating chamber in Fig. 1;
  • Fig. 5 is a schematic perspective view of the three-dimensional structure of the heating assembly in the second embodiment of the present invention.
  • Fig. 6 is a schematic longitudinal sectional view of the heating assembly shown in Fig. 5;
  • Fig. 7 is a schematic diagram of the cross-sectional outline of the heating chamber of the heating assembly in the third embodiment of the present invention.
  • Fig. 8 is a schematic diagram of the cross-sectional outline of the heating chamber of the heating assembly in the fourth embodiment of the present invention.
  • Fig. 9 is a schematic diagram of the cross-sectional outline of the heating chamber of the heating assembly in the fifth embodiment of the present invention.
  • Fig. 10 is a schematic diagram of the cross-sectional outline of the heating chamber of the heating assembly in the sixth embodiment of the present invention.
  • Fig. 11 is a schematic diagram of the cross-sectional outline of the heating chamber of the heating assembly in the seventh embodiment of the present invention.
  • Fig. 12 is a schematic longitudinal sectional view of the heating assembly in the eighth embodiment of the present invention.
  • Fig. 13 is a schematic perspective view of the three-dimensional structure of the heating assembly in the ninth embodiment of the present invention.
  • Fig. 14 is a schematic transverse cross-sectional view of the heating assembly shown in Fig. 13 containing an aerosol-generating substrate;
  • Fig. 15 is a schematic perspective view of the three-dimensional structure of the heating element containing the aerosol-generating substrate in the tenth embodiment of the present invention.
  • Fig. 16 is a schematic longitudinal sectional view of the heating assembly shown in Fig. 15;
  • Fig. 17 is a schematic diagram of an exploded structure of the heating assembly shown in Fig. 15;
  • Fig. 18 is a schematic diagram of a three-dimensional structure of an aerosol generating device inserted with an aerosol generating substrate in some embodiments of the present invention.
  • Fig. 19 is a schematic longitudinal sectional view of the aerosol generating device shown in Fig. 18 when an aerosol generating substrate is inserted.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • FIGS 1-4 show the heating assembly 1 in the first embodiment of the present invention.
  • the heating method of the heating assembly 1 can be resistance conduction heating, electromagnetic heating, infrared radiation heating or composite heating.
  • the heating assembly 1 includes a heating tube 12 , the heating tube 12 is in the shape of a hollow tube, and the inner wall of the heating tube 12 defines a heating chamber 120 for accommodating and heating the aerosol generating substrate 200 .
  • the cross-section of the heating cavity 120 may be a non-circular polygon, such polygon includes but not limited to triangle, square, trapezoid, pentagon and so on.
  • the cross-section of the heating cavity 120 is an axisymmetric polygon, further, the cross-section of the heating cavity 120 is a regular polygon or a Rello polygon.
  • the cross-sectional contour line C of the heating cavity 120 has a maximum inscribed circle C1, and the diameter 2R of the maximum inscribed circle C1 is smaller than the outer diameter of the aerosol-generating substrate 200 before being squeezed.
  • the diameter of the largest inscribed circle may be 0.2-2.0 mm smaller than the outer diameter of the aerosol-generating substrate 200 before being squeezed.
  • the diameter 2R of the largest inscribed circle C1 may be 3-9 mm, such as 4 mm, preferably 5-7 mm.
  • the aerosol-generating substrate 200 When the aerosol-generating substrate 200 is inserted into the heating cavity 120 , at least part of the cavity wall of the heating cavity 120 can press the aerosol-generating substrate 200 , prompting the aerosol-generating substrate 200 to deform radially inward. It can be understood that the more edges there are in the cross-sectional profile of the heating cavity 120 , the closer the cross-sectional profile of the heating cavity 120 is to a circle. In order to effectively squeeze the aerosol-generating substrate 200 to a certain extent, the number of edges in the cross-sectional profile of the heating chamber 120 should not be too many, and in some embodiments, the number of edges can be 3-7.
  • the maximum distance L between the center of the largest inscribed circle C1 and the cross-sectional contour line C of the heating cavity 120 is greater than the radius R of the largest inscribed circle C1 .
  • the maximum distance L from the center of the maximum inscribed circle C1 to the cross-sectional contour line C of the heating cavity 120 may be greater than 2 mm, preferably 3-5 mm.
  • the heating tube 12 is a regular triangular tube, that is, the outer contour and the inner contour of the cross section of the heating tube 12 are approximately regular triangular.
  • the cross-sectional contour line C of the heating chamber 120 that is, the cross-sectional inner contour line of the heating tube 12 , is roughly in the shape of a regular triangular prism with three straight edges C2 .
  • the junction of every two straight edges C2 of the cross-sectional contour line C of the heating cavity 120 may be provided with a rounded corner C3, and the smoothness of the junction can be improved through proper chamfering.
  • the external cross-sectional shape of the heating tube 12 corresponds to the cross-sectional shape of the heating chamber 120 , that is, the external cross-sectional shape of the heating tube 12 is also roughly a regular triangular prism connected by a circular arc transition.
  • the external cross-sectional shape of the heating tube 12 may also be different from the cross-sectional shape of the heating cavity 120 , for example, the external cross-sectional shape of the heating tube 12 may also be a circle or other shapes.
  • FIG. 2 is a cross-sectional view of the roughly cylindrical aerosol-generating substrate 200 accommodated in the heating tube 12 , where the dotted line represents the outline of the cross-section of the aerosol-generating substrate 200 before being squeezed.
  • the air inside the atomized substrate 220 of the aerosol-generating substrate 200 is squeezed out, and the density of the atomized substrate 220 increases, thereby improving the heat conduction efficiency and improving the large temperature difference and low heat conduction efficiency of the aerosol-generating substrate 200.
  • three airflow passages 121 may be formed between the outer wall of the aerosol-generating substrate 200 and the wall of the heating chamber 120, and the three airflow passages 121 are respectively located in the heating chamber. 120 Every two edges meet.
  • the heating assembly 1 is heated by pure resistance conduction heating.
  • the heating assembly 1 also includes a heating element 123 disposed on the surface of the heating tube 12 and capable of generating heat after being energized.
  • the heating element 123 can be a heating film, a heating wire, a heating sheet or a heating net.
  • the heating element 123 is a resistive heating film and can be disposed on the outer surface of the heating tube 12 .
  • the heating element 123 generates heat after being energized, and transfers the generated heat from the outer surface of the heating tube 12 to the aerosol-generating substrate 200 accommodated in the heating tube 12 to heat the aerosol-generating substrate 200 .
  • the heating tube 12 can be made of metal or non-metallic material with high thermal conductivity, which is conducive to the rapid transfer of heat, and the temperature field uniformity of the heating tube 12 is better under rapid temperature rise.
  • the metal material with higher thermal conductivity may include stainless steel, aluminum or aluminum alloy.
  • the non-metallic material with higher thermal conductivity may include ceramics, such as aluminum oxide, silicon carbide, aluminum nitride, silicon nitride and other ceramics.
  • the inner surface of the heating tube 12 can also be provided with a heat soaking film 122 , and the heat soaking film 122 is arranged around the inner surface of the heating tube 12 and is at least partially arranged in the length direction (axial direction) of the heating tube 12 .
  • the heat spreading film 122 can be made of high thermal conductivity materials such as copper or silver, and is used to make the temperature field on the inner surface of the heating tube 12 uniform, so as to achieve uniform heating of the aerosol generating substrate 200 .
  • the heat spreading film 122 can be arranged corresponding to the high temperature area of the heating element 123 , and can be arranged corresponding to the atomizing substrate 220 of the aerosol generating substrate 200 .
  • the heat equalizing film 122 overlaps or at least partially overlaps with the high temperature area of the heating element 123 and the atomizing substrate 220 in the length direction of the heating tube 12 .
  • the high temperature area of the heating element 123 is usually an area where the distribution of heating traces is relatively dense, and this area generates more heat and has a higher temperature after the heating element 123 is energized.
  • the heat soaking film 122 is set corresponding to the high temperature area of the heating element 123 and the atomization substrate 220, so that the heat in the high temperature area of the heating element 123 can be quickly transferred to the heat soaking film 122 and evenly distributed on the heat soaking film 122, so as to realize the mist Uniform heating of the substrate 220. Understandably, in other embodiments, the heat equalizing film 122 may also be disposed on the outer surface of the heating pipe 12 , for example, the heat equalizing film 122 may also be disposed between the resistance heating film and the outer surface of the heating pipe 12 .
  • the heating assembly 1 in this embodiment also includes an upper part of the heating pipe 12 for introducing air.
  • the guide part 11 of the aerosol-generating substrate 200 and the supporting wall 13 covering the bottom of the heating tube 12 are used for axially supporting and positioning the aerosol-generating substrate 200 .
  • the guide component 11, the heating pipe 12, and the supporting wall 13 can be integrally formed, or can be formed separately and then assembled together.
  • the supporting wall 13 covers the opening of the lower end of the heating tube 12 and can be integrally formed with the heating tube 12 .
  • the inner side wall of the heating tube 12 and/or the upper side wall of the supporting wall 13 may also be provided with at least one limiting boss 14 for limiting the aerosol generating substrate 200 .
  • the at least one limiting boss 14 and the heating tube 12 and/or the supporting wall 13 can be integrally formed, or they can be formed separately and then assembled together by welding or the like.
  • there is one limiting boss 14 and the one limiting boss 14 can be formed by integrally bending upwards of the support wall 13 and can coincide with the central axis of the support wall 13 .
  • the top surface of the limiting boss 14 is a plane, and the lower end surface of the aerosol-generating substrate 200 can abut against the at least one limiting boss 14 to achieve supporting positioning.
  • the guide part 11 is in the shape of a hollow tube, and the inner wall of the guide part 11 defines an introduction cavity 110 for introducing the aerosol generating matrix 200 .
  • the introduction cavity 110 has a first end 111 away from the heating tube 12 and a second end 112 close to the heating tube 12 .
  • the introduction cavity 110 has a cross-section A and a cross-section B at the first end 111 and the second end 112 respectively, and the cross-sectional area of the cross-section B is smaller than the cross-sectional area of the cross-section A.
  • the cross-sectional area of the cross-section A is not smaller than the cross-sectional area of the aerosol-generating substrate 200 before being squeezed.
  • the cross-sectional area of the cross-section A is larger than the cross-sectional area of the aerosol-generating substrate 200 before being squeezed, which is beneficial to
  • the aerosol-generating substrate 200 is smoothly introduced into the heating element 1 .
  • the cross-sectional shape of the cross-section A may correspond to the cross-sectional shape of the aerosol-generating substrate 200 before being squeezed.
  • the aerosol-generating substrate 200 is cylindrical, and the cross-sectional shape of the cross-section A is a circle. shape.
  • the cross-sectional shape of the cross-section A can also be different from the cross-sectional shape of the aerosol-generating substrate 200, for example, the cross-sectional shape of the cross-section A can also be non-circular, including triangle, square, trapezoid, etc. polygon.
  • the cross-sectional shape of the cross-section B matches the cross-sectional shape of the heating cavity 120 , and is different from the cross-sectional shape of the cross-section A.
  • the cross-sectional shape of the cross-section B is roughly a regular triangular prism connected by a circular arc transition.
  • the second end 112 of the introduction chamber 110 is connected to the upper end of the heating chamber 120 , and the cross-sectional size of the second end 112 of the introduction chamber 110 is consistent with the cross-sectional size of the heating chamber 120 .
  • the cross-sectional dimension of the second end 112 of the introduction cavity 110 may also be smaller than the cross-sectional dimension of the heating cavity 120 .
  • the introduction chamber 110 can adopt a smooth gradual transition from the first end 111 to the second end 112, that is, the cross-section of the introduction chamber 110 gradually changes from a circle at the first end 111 to a regular triangular prism consistent with the cross-section of the heating tube 12.
  • the heating pipe 12 is connected.
  • the aerosol-generating substrate 200 is smoothly inserted into the heating tube 12 through the guiding function of the guiding member 11 , and at the same time is pressed radially inward by the heating tube 12 into a triangular shape similar to the cross-sectional shape of the heating cavity 120 .
  • the outer cross-sectional shape of the guide member 11 may correspond to the cross-sectional shape of the introduction cavity 110. Specifically, in this embodiment, the outer cross-sectional shape of the guide member 11 gradually changes from a circle at the upper end to a regular triangular prism at the lower end. . In other embodiments, the outer cross-sectional shape of the guide member 11 may also be different from the cross-sectional shape of the introduction cavity 110 .
  • the heating assembly 1 in this embodiment can adopt a combined heating method of resistance conduction and infrared radiation, and the heating assembly 1 also includes an infrared radiation heating film 125 disposed on the surface of the heating tube 12 .
  • the heating element 123 can be disposed on the outer surface of the heating tube 12
  • the two electrode leads 124 can be respectively welded to the bottom outer surface of the heating tube 12 and welded to the heating element 123 .
  • the infrared radiation heating film 125 can be disposed on the inner surface of the heating pipe 12 .
  • the heating tube 12 can be made of metal or non-metallic material with high thermal conductivity, and the temperature field uniformity of the heating tube 12 is better under rapid temperature rise.
  • the metal material with high thermal conductivity may include stainless steel, aluminum or aluminum alloy.
  • the non-metallic material with high thermal conductivity may include ceramics, such as aluminum oxide, silicon carbide, aluminum nitride, silicon nitride and other ceramics.
  • the infrared radiation heating film 125 can also be disposed on the outer surface of the heating tube 12 , and in this case, the heating tube 12 can be made of materials such as quartz with high infrared transmittance.
  • the heating assembly 1 may also only use infrared radiation heating, that is, the surface of the heating pipe 12 is only provided with an infrared radiation heating film 125 without a heating element 123 .
  • the infrared radiation heating film 125 can be disposed on the inner surface of the heating tube 12, and at this time, the heating tube 12 can be made of metal or non-metallic material with high temperature resistance and low thermal conductivity.
  • the infrared radiation heating film 125 can also be arranged on the outer surface of the heating tube 12, and at this time, the heating tube 12 can be made of materials such as quartz with low thermal conductivity and high infrared transmittance.
  • FIG. 7 shows a schematic diagram of the cross-sectional contour line C of the heating chamber 120 in the third embodiment of the present invention.
  • the cross-sectional contour line C of the heating chamber 120 in this embodiment is a positive triangle Prismatic, and every two straight edges are directly connected, that is, there is no chamfer at the junction of every two straight edges.
  • Fig. 8 shows a schematic diagram of the cross-sectional contour line C of the heating chamber 120 in the fourth embodiment of the present invention, which is mainly different from the first embodiment in that the cross-sectional contour line C of the heating chamber 120 in this embodiment is a regular quadrilateral , and every two adjacent edges are directly connected.
  • Fig. 9 shows a schematic diagram of the cross-sectional contour line C of the heating chamber 120 in the fifth embodiment of the present invention, which is mainly different from the first embodiment in that the cross-sectional contour line C of the heating chamber 120 in this embodiment is a regular quadrilateral , and every two adjacent edges are connected by a circular arc transition.
  • FIG. 10 shows a schematic diagram of the cross-sectional contour line C of the heating chamber 120 in the sixth embodiment of the present invention.
  • the main difference between it and the first embodiment is that the cross-sectional contour line C of the heating chamber 120 in this embodiment is positive six polygon, and every two adjacent edges are directly connected.
  • Fig. 11 shows a schematic diagram of the cross-sectional contour line C of the heating chamber 120 in the seventh embodiment of the present invention.
  • the cross-sectional contour line C of the heating chamber 120 in this embodiment has A low polygon with an odd number of curved sides.
  • the odd-numbered arc-shaped surfaces of the heating chamber 120 have a larger contact area with the aerosol-generating substrate 200 .
  • the cross-sectional contour line C is in the form of a Lello triangle.
  • the cross-sectional contour line C may also be in the form of a Lello pentagon, a heptagon, or the like.
  • Fig. 12 shows the heating assembly 1 in the eighth embodiment of the present invention.
  • an introduction cavity 110 is formed in the guide member 11 and is axially aligned with the introduction cavity 110. Connected transition cavity 113 .
  • the introduction cavity 110 has a second end 112 close to the heating tube 12 and a first end 111 away from the heating tube 12 .
  • the introduction cavity 110 has a cross-section A and a cross-section B at the first end 111 and the second end 112 respectively, and the cross-sectional area of the cross-section A is larger than that of the cross-section B.
  • the cross-sectional shape of the cross-section B of the introduction chamber 110 matches the cross-sectional shape of the heating chamber 120 , and the cross-sectional area of the cross-section B is smaller than or equal to the cross-sectional area of the heating chamber 120 .
  • the upper end of the transition chamber 113 communicates with the second end 112 of the introduction chamber 110 .
  • the lower end of the transition chamber 113 communicates with the upper end of the heating chamber 120 , and the cross-sectional shape and size of the lower end of the transition chamber 113 can match the cross-sectional shape and size of the upper end of the heating chamber 120 .
  • the cross section of the heating chamber 120 is a racetrack circle, and the raceway circle
  • the diameter of the largest inscribed circle of the circular cross-section is consistent with the length of the minor axis of the circular cross-section of the runway.
  • two airflow passages 121 may be formed between the outer wall of the aerosol-generating substrate 200 and the wall of the heating chamber 120, and the two airflow passages 121 are located in the heating chamber respectively. 120 on both sides of the major axis.
  • the cross-section of the heating chamber 120 can also be other non-circular, preferably axisymmetric non-circular.
  • the cross-sectional shape of the second end 112 of the introduction chamber 110 communicating with the heating chamber 120 is a racetrack circular shape consistent with the cross-sectional shape of the heating chamber 120, and the cross-sectional size of the second end 112 of the introduction chamber 110 is the same as that of the heating chamber 120.
  • the cross-sectional dimensions of the heating chamber 120 are uniform.
  • the cross-sectional shape of the first end 111 of the introduction cavity 110 may be circular, and the cross-sectional shape of the introduction cavity 110 gradually changes from a circle at the first end 111 to a racetrack circle at the second end 112 .
  • through holes 10 communicating with the heating chamber 120 may also be opened on the heating assembly 1 .
  • the through hole 10 can be opened at any position of the heating assembly 1 as required.
  • the through hole 10 can be opened on the side wall of the guide component 11 and/or the heating pipe 12 , and/or, the through hole 10 can also be opened on the support wall 13 and/or the limiting boss 14 .
  • the shape, size and quantity of the through holes 10 are not limited.
  • the heating assembly 1 may include a heating pipe 12, a guide member 11 arranged at the top of the heating pipe 12, and a support wall 13 arranged at the bottom of the heating pipe 12 And the outer tube 16 sleeved outside the heating tube 12 .
  • the guide part 11, the heating tube 12, the supporting wall 13, and the outer tube 16 are formed separately and then assembled together.
  • the heating tube 12 is a regular triangular tube, and the axial length of the heating tube 12 may be 25-31 mm.
  • the inner wall of the heating tube 12 defines a heating cavity 120 for accommodating and heating the aerosol generating substrate 200 .
  • the cross section of the heating cavity 120 is a regular triangular prism, and the three edges are connected by arc transitions.
  • the cross-sectional outline of the heating chamber 120 has a maximum inscribed circle whose diameter is smaller than the outer diameter of the aerosol-generating substrate 200 before being extruded.
  • the heating pipe 12 can be made of metal or non-metal material with high thermal conductivity.
  • the outer wall of the heating tube 12 may be provided with a heating component 17, and the heating component 17 includes a heating element and/or a circuit board.
  • the heating component 17 includes a flexible circuit board and a thick film heating element disposed on the flexible circuit board.
  • the heating component 17 may also only include a heating element or a circuit board, the heating element may be a heating film, a heating sheet or a heating wire, and the circuit board may be a flexible circuit board or a rigid circuit board.
  • the guide part 11 can be injection-molded with a high-temperature-resistant high-molecular polymer, such as PEEK (polyetheretherketone), high-temperature nylon, and the like.
  • the guide member 11 may include a main body 115 , an end wall 116 extending outward from an outer wall of the main body 115 , and a ring wall 117 extending downward from the end wall 116 .
  • the inner wall of the main body 115 defines the opening cavity 114 and the introduction cavity 110 .
  • the cross-sectional shape of the opening 114 can match the cross-sectional shape of the aerosol-generating substrate 200 before being squeezed. In this embodiment, the cross-sectional shape of the opening 114 is circular.
  • the cross-sectional area of the opening 114 may be greater than or equal to the cross-sectional area of the aerosol-generating substrate 200 before being squeezed.
  • the introduction cavity 110 has a first end 111 away from the heating tube 12 and a second end 112 close to the heating tube 12 .
  • the first end 111 of the introduction cavity 110 communicates with the lower end of the opening cavity 114 , and the cross-sectional shape of the introduction cavity 110 at the first end 111 can match the cross-sectional shape of the opening cavity 114 .
  • the cross-sectional area of the introduction cavity 110 at the first end 111 may be smaller than or equal to the cross-sectional area of the opening cavity 114 .
  • the cross-sectional area of the second end 112 of the introduction cavity 110 is smaller than the cross-sectional area of the first end 111 .
  • the second end 112 of the introduction chamber 110 communicates with the upper end of the heating chamber 120 , and the cross-sectional shape and area of the second end 112 of the introduction chamber 110 match the cross-sectional shape and area of the heating chamber 120 .
  • the introduction cavity 110 can adopt a gradual transition from the first end 111 to the second end 112 , that is, the cross-sectional shape of the introduction cavity 110 gradually changes from a circle at the first end 111 to a regular triangular prism at the second end 112 .
  • the outer cross-sectional shape of the main body portion 115 can match the cross-sectional shape of the introduction cavity 110 .
  • the end wall 116 can be formed by extending radially outward from the outer wall surface of the first end 111 of the main body 115 .
  • the ring wall 117 can be tightly embedded in the upper opening of the outer tube 16 , and can be formed by extending vertically downward from the outer ring of the end wall 116 .
  • the cross-section of the ring wall 117 can be circular, and an annular receiving space is formed between the inner wall surface of the ring wall 117 and the outer wall surface of the main body 115 for receiving the first heat insulating member 155 .
  • the support arm 13 can be embedded in the opening of the lower end of the heating pipe 12, which can be made of metal or non-metal material with high thermal conductivity.
  • the middle part of the support arm 13 is bent upwards to form a limiting boss 14 , and the lower end surface of the aerosol generating substrate 200 can abut against the limiting boss 14 to achieve support and positioning.
  • the outer tube 16 can be in the shape of a round tube, and can be made of metal with high thermal conductivity, including stainless steel, copper alloy, aluminum alloy, etc., such as 430 stainless steel, copper or copper alloy. Alternatively, the outer tube 16 can also be made of non-metallic materials such as ceramics with high thermal conductivity, including alumina, silicon carbide, aluminum nitride, silicon nitride and the like. The outer tube 16 is made of high thermal conductivity material, which is beneficial to the uniform heating of the heating element 1 .
  • the heating assembly 1 in this embodiment may further include a heat insulation assembly 15 disposed between the outer pipe 16 and the heating pipe 12 .
  • the heat insulation component 15 may include a first heat insulation layer 151 , a second heat insulation layer 152 , a third heat insulation layer 153 , and a heat dissipation layer 154 that are sheathed outside the heating tube 12 in sequence.
  • the material of the first heat insulation layer 151 and the third heat insulation layer 153 can be one or more of airgel, asbestos, glass fiber, polyether ether ketone, imide, polyetherimide or ceramics. combination, preferably an aerogel.
  • the material of the heat dissipation layer 154 may be graphite sheet or graphene sheet.
  • the second heat insulation layer 152 can be a vacuum tube.
  • the heat insulation assembly 15 may further include a first heat insulation element 155 and a second heat insulation element 156 respectively disposed at two axial ends of the vacuum tube.
  • the first heat insulator 155 and the second heat insulator 156 can be made of low thermal conductivity materials, preferably elastic materials with low thermal conductivity such as silicone.
  • the high-temperature regions at both ends of the vacuum tube are respectively wrapped by the first heat insulating member 155 and the second heat insulating member 156 to realize heat insulation and sealing functions.
  • the heat insulation assembly 15 can also be composed of only one or several of the first heat insulation layer 151, the second heat insulation layer 152, the third heat insulation layer 153, and the heat dissipation layer 154.
  • the relative positional relationship of the first heat insulation layer 151, the second heat insulation layer 152, the third heat insulation layer 153, and the heat dissipation layer 154 can also be adjusted as required, for example, the heat dissipation layer 154 can also be arranged on the first heat insulation layer 151 and the second insulation layer 152.
  • the heating assembly 1 may further include a base 18 embedded in the bottom of the outer tube 16 .
  • the base 18 can be made of high temperature resistant materials such as PEEK, and can be tightly sleeved between the inner wall of the outer tube 16 and the outer wall of the second heat insulating member 156 .
  • the heating assembly 1 can also include a temperature detection element 19, which can be installed at the bottom of the support arm 13 to detect the temperature of the bottom of the aerosol generating substrate 200, and also detect the number of suction ports through temperature changes.
  • the temperature detection element 19 may be a thermistor with a negative temperature coefficient, and may be clamped between the support arm 13 and the second heat insulating member 156 .
  • the aerosol generating device 100 may be roughly rectangular and columnar and may include a housing 2, a heating assembly 1 and a main board disposed in the housing 2. 3 and battery 4. Wherein, the heating assembly 1 can adopt the heating assembly structure in any of the above-mentioned embodiments. It can be understood that, in other embodiments, the aerosol generating device 100 is not limited to be in the shape of a rectangular column, and it can also be in other shapes such as a square column, a cylinder, an ellipse column, and the like.
  • the top of the housing 2 is provided with a socket 20 for inserting the aerosol generating substrate 200.
  • the cross-sectional shape and size of the socket 20 are compatible with the cross-sectional shape and size of the aerosol generating substrate 200.
  • the aerosol generating substrate 200 can be inserted through the socket. 20 is inserted into the heating component 1 and contacts the inner wall of the heating component 1 . After the heating component 1 is energized and generates heat, it can transfer heat to the aerosol generating substrate 200 , so as to realize the baking and heating of the aerosol generating substrate 200 .
  • the main board 3 is electrically connected to the battery 4 and the heating assembly 1 respectively.
  • a related control circuit is arranged on the main board 3 , and the on-off connection between the battery 4 and the heating assembly 1 can be controlled by the switch 5 provided on the casing 2 .
  • a dustproof cover 6 for covering or exposing the socket 20 may also be provided on the top of the housing 2 . When the aerosol generating device 100 is not needed, the dust-proof cover 6 can be pushed to cover the socket 20 to prevent dust from entering the socket 20 . When needed, push the dust-proof cover 6 to expose the socket 20 so that the aerosol-generating substrate 200 can be inserted through the socket 20 .
  • the aerosol-generating substrate 200 may include an outer covering 210 and an atomizing substrate 220 disposed on the inner bottom of the outer covering 210 .
  • the outer wrapping layer 210 may be outer wrapping paper.
  • the atomized substrate 220 can be a material used for medical treatment or health preservation, for example, plant-like materials such as plant roots, stems, leaves, etc. in solid sheet or filament form.
  • the aerosol generating device 100 bakes and heats the aerosol generating substrate 200 inserted therein at a low temperature, so as to release the aerosol extract in the atomized substrate 220 without burning.
  • the aerosol generating substrate 200 may also include a hollow supporting section 230 , a cooling section 240 and a filtering section 250 arranged in the outer cladding 210 and sequentially arranged above the atomizing substrate 220 in the longitudinal direction.
  • the cross-sectional shape of the aerosol-generating substrate 200 is not limited to being circular, and it can also be in other shapes such as ellipse, square, and polygon.

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Abstract

一种加热组件（1）及气溶胶产生装置（100），加热组件（1）包括加热管(12)以及与加热管(12)轴向连接的导向部件(11)，加热管(12)内形成有用于容纳并加热气溶胶产生基质(200)的加热腔(120)，加热腔(120)的横截面轮廓为多边形；导向部件(11)内形成有与加热腔(120)相连通用于导入气溶胶产生基质（200）的导入腔(110)，导入腔(110)具有远离加热腔(120)的第一端(111)以及靠近加热腔(120)的第二端(112)，导入腔(110)的第一端(111)的横截面（A）形状与待加热的气溶胶产生基质(200)的横截面外形相匹配，导入腔(110)的第二端(112)的横截面（B）形状与加热腔(120)的横截面形状相匹配，导入腔(110)从第一端(111)至第二端(112)为渐变过渡，气溶胶产生基质（200）能够经由导入腔(110)顺滑地导入到加热腔(120)内。

Description

加热组件及气溶胶产生装置 技术领域
本发明涉及雾化领域，更具体地说，涉及一种加热组件及气溶胶产生装置。
 背景技术
加热不燃烧型雾化装置是一种通过低温加热不燃烧的方式加热雾化材料形成可抽吸气雾的气溶胶产生装置。目前，气溶胶产生装置的加热方式通常为管式外围加热或中心嵌入加热。其中，管式外围加热是指加热组件围绕于气溶胶产生基质外。现有的采用管式外围加热方式的气溶胶产生装置，其加热组件通常设计为中空圆管状，插入气溶胶产生基质后，气溶胶产生基质横截面的轮廓线所在的圆和加热组件内壁的圆接触重合或相切。该结构至少具有以下不足：热量由气溶胶产生基质的外表面向中心传导的距离大，气溶胶产生基质表心温度差大。
 技术问题
本发明要解决的技术问题在于，针对现有技术的上述缺陷，提供一种改进的加热组件及具有该加热组件的气溶胶产生装置。
 技术解决方案
本发明解决其技术问题所采用的技术方案是：构造一种加热组件，包括加热管以及与所述加热管轴向连接的导向部件，所述加热管内形成有用于容纳并加热气溶胶产生基质的加热腔，所述加热腔的横截面轮廓为多边形；
所述导向部件内形成有与所述加热腔相连通用于导入所述气溶胶产生基质的导入腔，所述导入腔具有远离所述加热腔的第一端以及靠近所述加热腔的第二端，所述导入腔的所述第一端的横截面形状与待加热的所述气溶胶产生基质的横截面外形相匹配，所述导入腔的所述第二端的横截面形状与所述加热腔的横截面形状相匹配，所述导入腔从所述第一端至所述第二端为渐变过渡。
在一些实施例中，所述加热管与所述导向部件一体成型。
在一些实施例中，所述加热腔的至少部分腔壁能够挤压所述气溶胶产生基质；所述加热腔的横截面轮廓具有一最大内切圆，在所述加热腔容纳有所述气溶胶产生基质的状态，所述最大内切圆的直径小于所述气溶胶产生基质被挤压前的外径。
在一些实施例中，所述最大内切圆的直径为3-9mm。
在一些实施例中，所述最大内切圆的直径比所述气溶胶产生基质被挤压前的外径小0.2-2.0mm。
在一些实施例中，所述最大内切圆的中心到所述加热腔的横截面轮廓线的最大距离大于所述最大内切圆的半径。
在一些实施例中，所述加热腔的横截面轮廓为正多边形。
在一些实施例中，所述正多边形的每两条相邻的棱边之间采用圆弧过渡连接。
在一些实施例中，所述加热腔的横截面轮廓为莱洛多边形。
在一些实施例中，在所述加热腔容纳有所述气溶胶产生基质的状态，所述气溶胶产生基质的外壁面和所述加热腔的腔壁之间还形成有多个气流通道；所述多个气流通道分别位于所述加热腔的每两个棱边的相接处。
在一些实施例中，所述导入腔的所述第一端的横截面形状与所述第二端的横截面形状不同。
在一些实施例中，所述导入腔的所述第一端的横截面形状为圆形或多边形。
在一些实施例中，所述导入腔的所述第二端的横截面面积小于所述第一端的横截面面积。
在一些实施例中，所述导入腔的所述第一端的横截面面积大于或等于待加热的所述气溶胶产生基质的横截面面积。
在一些实施例中，所述导入腔的所述第二端的横截面面积小于或等于所述加热腔的横截面面积。
在一些实施例中，所述导向部件内还形成有连通在所述导入腔和所述加热腔之间的过渡腔。
在一些实施例中，所述过渡腔的横截面形状与所述加热腔的横截面形状相匹配。
在一些实施例中，所述导向部件内还形成有连通在所述导入腔的所述第一端的开口腔。
在一些实施例中，所述开口腔的横截面形状与待加热的所述气溶胶产生基质的横截面外形相匹配。
在一些实施例中，所述开口腔的横截面面积大于或等于所述导入腔的所述第一端的横截面面积。
本发明还提供一种气溶胶产生装置，包括上述任一项所述的加热组件。
 有益效果
实施本发明至少具有以下有益效果：气溶胶产生基质能够经由导入腔顺滑地导入到加热腔内。此外，气溶胶产生基质容纳到加热腔内时还能够被加热腔的至少部分腔壁向内挤压；气溶胶产生基质被挤压变形后，其径向表面到中心的距离减小，从而缩短了热量传导距离，同时气溶胶产生基质中的雾化基质内部的空气被挤压排出，雾化基质的密度增大，从而可以提高导热效率，改善气溶胶产生基质表心温差大、热传导效率低、预热时间长的问题。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明第一实施例中加热组件的立体结构示意图；
图2是图1所示加热组件容纳有气溶胶产生基质时的横向剖面示意图；
图3是图1所示加热组件的纵向剖面示意图；
图4是图1中加热腔的横截面轮廓线示意图；
图5是本发明第二实施例中加热组件的立体结构示意图；
图6是图5所示加热组件的纵向剖面示意图；
图7是本发明第三实施例中加热组件加热腔的横截面轮廓线示意图；
图8是本发明第四实施例中加热组件加热腔的横截面轮廓线示意图；
图9是本发明第五实施例中加热组件加热腔的横截面轮廓线示意图；
图10是本发明第六实施例中加热组件加热腔的横截面轮廓线示意图；
图11是本发明第七实施例中加热组件加热腔的横截面轮廓线示意图；
图12是本发明第八实施例中加热组件的纵向剖面示意图；
图13是本发明第九实施例中加热组件的立体结构示意图；
图14是图13所示加热组件容纳有气溶胶产生基质时的横向剖面示意图；
图15是本发明第十实施例中加热组件容纳有气溶胶产生基质时的立体结构示意图；
图16是图15所示加热组件的纵向剖面示意图；
图17是图15所示加热组件的分解结构示意图；
图18是本发明一些实施例中气溶胶产生装置插入有气溶胶产生基质时的立体结构示意图；
图19是图18所示气溶胶产生装置插入有气溶胶产生基质时的纵向剖面示意图。
 本发明的实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系或者是本发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
图1-4示出了本发明第一实施例中的加热组件1，加热组件1的加热方式可以为电阻传导加热、电磁加热、红外辐射加热或复合加热等。该加热组件1包括加热管12，加热管12呈内部中空的管状，加热管12的内壁面界定出一加热腔120，用于容纳并加热气溶胶产生基质200。
加热腔120的横截面可以为非圆的多边形，该多边形包括但不限于三角形、方形、梯形、五边形等。较佳地，加热腔120的横截面为轴对称多边形，进一步地，加热腔120的横截面为正多边形或莱洛多边形。加热腔120的横截面轮廓线C具有一最大内切圆C1，该最大内切圆C1的直径2R小于被挤压前的气溶胶产生基质200的外径。在一些实施例中，该最大内切圆的直径可以比被挤压前的气溶胶产生基质200的外径小0.2-2.0mm。在一些实施例中，该最大内切圆C1的直径2R可以为3-9mm，例如4mm，较佳为5-7mm。在气溶胶产生基质200插入至加热腔120中时，加热腔120的至少部分腔壁能够挤压气溶胶产生基质200，促使气溶胶产生基质200沿径向向内产生形变。可以理解地，加热腔120的横截面轮廓的棱边数越多，加热腔120的横截面轮廓越趋近于圆。为了有效对气溶胶产生基质200进行一定的挤压，加热腔120的横截面轮廓的棱边数不宜过多，在一些实施例中，该棱边数可以为3-7。
该最大内切圆C1的中心到加热腔120的横截面轮廓线C的最大距离L大于该最大内切圆C1的半径R。在一些实施例中，该最大内切圆C1的中心到加热腔120的横截面轮廓线C的最大距离L可大于2mm，较佳为3-5mm。在气溶胶产生基质200收容在加热腔120中时，气溶胶产生基质200的外壁面和加热腔120的腔壁之间形成有至少一个气流通道121，该至少一个气流通道121可沿加热腔120的轴向方向延伸，可保证抽吸时气流流通顺畅。
具体地，在本实施例中，加热管12为正三棱管，即加热管12的横截面外轮廓和内轮廓均大致为正三棱形。加热腔120的横截面轮廓线C，即加热管12的横截面内轮廓线，大致呈正三棱形，其具有三条直棱边C2。加热腔120的横截面轮廓线C的每两条直棱边C2的相接处可设置有倒圆角C3，通过适当的倒角，改善该相接处的圆滑度。
加热管12的外部横截面形状与加热腔120的横截面形状相对应，即，加热管12的外部横截面形状也大致为采用圆弧过渡连接的正三棱形。在其他实施例中，加热管12的外部横截面形状也可与加热腔120的横截面形状不同，例如，加热管12的外部横截面形状也可以为圆形等其他形状。
气溶胶产生基质200插入到加热管12内，同时被加热管12沿径向向内挤压为与加热腔120的横截面形状相似的三棱形状。图2所示为大致呈圆柱状的气溶胶产生基质200收容在加热管12内时的横剖视图，其中，虚线表示气溶胶产生基质200被挤压前的横截面外轮廓线。气溶胶产生基质200被挤压变形后，其径向表面到中心的距离减小，从而缩短了热量传导距离。同时，气溶胶产生基质200的雾化基质220内部的空气被挤压排出，雾化基质220的密度增大，从而可以提高导热效率，改善气溶胶产生基质200表心温差大、热传导效率低、预热时间长的问题。
在气溶胶产生基质200收容在加热管12中时，气溶胶产生基质200的外壁面和加热腔120的腔壁之间还可形成有三个气流通道121，该三个气流通道121分别位于加热腔120每两条棱边的相接处。
如图3所示，在本实施例中，加热组件1采用纯电阻传导加热的方式进行加热，该加热组件1还包括设置于加热管12的表面并可在通电后发热的发热体123。该发热体123可以为发热膜、发热丝、发热片或发热网。具体地，在本实施例中，发热体123为电阻发热膜并可设置于加热管12的外表面。发热体123在通电后产生热量，并将产生的热量从加热管12的外表面传递给收容于加热管12内的气溶胶产生基质200，对气溶胶产生基质200进行加热。
加热管12可采用具有较高导热系数的金属或非金属材料制成，有利于热量的快速传递，且在快速升温下加热管12的温度场均匀性较好。其中，该较高导热系数的金属材料可包括不锈钢、铝或铝合金。该较高导热系数的非金属材料可包括陶瓷，例如氧化铝、碳化硅、氮化铝、氮化硅等陶瓷。
加热管12的内表面还可设置有均热膜122，该均热膜122在加热管12的内表面周圈设置，在加热管12的长度方向（轴向方向）至少部分设置。该均热膜122可采用铜或银等高导热材料制成，用于使加热管12内表面的温度场均匀，实现对气溶胶产生基质200的均匀加热。在一些实施例中，该均热膜122可与发热体123的高温区对应设置，并可与气溶胶产生基质200的雾化基质220对应设置。具体地，均热膜122与发热体123的高温区以及雾化基质220在加热管12的长度方向上重叠或至少部分重叠。发热体123的高温区通常为其发热轨迹分布较为密集的区域，该区域在发热体123通电后发热较多而温度较高。将均热膜122与发热体123的高温区以及雾化基质220对应设置，可将发热体123的高温区的热量迅速传递至均热膜122并在均热膜122均匀分布，从而实现对雾化基质220的均匀加热。可以理解地，在其他实施例中，均热膜122也可设置于加热管12的外表面，例如，均热膜122也可设置于电阻发热膜和加热管12的外表面之间。
图5-6示出了本发明第二实施例中的加热组件1，其与第一实施例的主要区别在于，本实施例中的加热组件1还包括位于加热管12的上部用于导入气溶胶产生基质200的导向部件11以及封盖于加热管12的底部用于气溶胶产生基质200轴向支撑定位的支撑壁13。导向部件11、加热管12、支撑壁13可一体成型，或者也可分别单独成型后再组装在一起。
具体地，在本实施例中，支撑壁13封盖于加热管12的下端开口处，并可与加热管12一体成型。加热管12的内侧壁和/或支撑壁13的上侧壁还可设置有至少一个限位凸台14，用于对气溶胶产生基质200进行限位。该至少一个限位凸台14与加热管12和/或支撑壁13可以一体成型，或者，其也可分别单独成型后再通过焊接等方式组装在一起。在本实施例中，限位凸台14有一个，该一个限位凸台14可由支撑壁13一体向上弯折形成且可与支撑壁13的中轴线重合。限位凸台14的顶面为平面，气溶胶产生基质200的下端面可抵靠于该至少一个限位凸台14上实现支撑定位。在其他实施例中，限位凸台14也可有两个或两个以上，该两个或两个以上限位凸台14可分布于支撑壁13的周边，并可沿支撑壁13的周向均匀间隔设置。
导向部件11呈内部中空的管状，导向部件11的内壁面界定出一用于导入气溶胶产生基质200的导入腔110。该导入腔110具有远离加热管12的第一端111以及靠近加热管12的第二端112。该导入腔110在第一端111和第二端112分别具有一横截面A和横截面B，该横截面B的截面积小于横截面A的截面积。该横截面A的截面积不小于气溶胶产生基质200被挤压前的横截面积，较佳地，该横截面A的截面积大于气溶胶产生基质200被挤压前的横截面积，利于将气溶胶产生基质200顺滑导入到加热组件1内。该横截面A的截面形状可与气溶胶产生基质200被挤压前的横截面形状相对应，在本实施例中，该气溶胶产生基质200为圆柱状，该横截面A的截面形状为圆形。在其他实施例中，该横截面A的截面形状也可与气溶胶产生基质200的横截面形状不同，例如，该横截面A的截面形状也可以为非圆形，包括三角形、方形、梯形等多边形。
该横截面B的截面形状与加热腔120的横截面形状相匹配，且与横截面A的截面形状不同。在本实施例中，该横截面B的截面形状大致为采用圆弧过渡连接的正三棱形。在本实施例中，导入腔110的第二端112与加热腔120的上端连接在一起，导入腔110的第二端112的横截面尺寸与加热腔120的横截面尺寸一致。在其他实施例中，导入腔110的第二端112的横截面尺寸也可小于加热腔120的横截面尺寸。导入腔110从第一端111至第二端112可采用平滑渐变过渡，即，导入腔110的横截面从第一端111的圆形渐变为与加热管12横截面一致的正三棱形，与加热管12衔接。气溶胶产生基质200经由导向部件11的导向功能顺滑插入到加热管12内，同时被加热管12沿径向向内挤压为与加热腔120的横截面形状相似的三棱形状。
导向部件11的外部横截面形状可与导入腔110的横截面形状相对应，具体地，在本实施例中，该导向部件11的外部横截面形状由上端的圆形渐变为下端的正三棱形。在其他实施例中，导向部件11的外部横截面形状也可与导入腔110的横截面形状不同。
此外，本实施例中的加热组件1可采用电阻传导和红外辐射复合加热的加热方式，该加热组件1还包括设置于加热管12表面的红外辐射发热膜125。发热体123可设置于加热管12的外表面，两根电极引线124可分别焊接于加热管12的底部外表面并与发热体123焊接导通。该红外辐射发热膜125可设置于加热管12的内表面。加热管12可采用高导热系数的金属或非金属材料制成，在快速升温下加热管12的温度场均匀性较好。其中，该高导热系数的金属材料可包括不锈钢、铝或铝合金。该高导热系数的非金属材料可包括陶瓷，例如氧化铝、碳化硅、氮化铝、氮化硅等陶瓷。在其他实施例中，红外辐射发热膜125也可设置于加热管12的外表面，此时，加热管12可采用高红外透过率的石英等材料制成。
在其他实施例中，加热组件1也可仅采用红外辐射加热的加热方式，即，加热管12的表面仅设置有红外辐射发热膜125，而没有设置发热体123。该红外辐射发热膜125可设置于加热管12的内表面，此时，加热管12可采用耐高温、低导热系数的金属或非金属材料制成。或者，该红外辐射发热膜125也可设置于加热管12的外表面，此时，加热管12可采用低导热系数、高红外透过率的石英等材料制成。
图7示出了本发明第三实施例中加热腔120的横截面轮廓线C的示意图，其与第一实施例的主要区别在于，本实施例中加热腔120的横截面轮廓线C呈正三棱形，且每两条直棱边之间直接连接，即，在每两条直棱边的相接处未进行倒角。
图8示出了本发明第四实施例中加热腔120的横截面轮廓线C的示意图，其与第一实施例的主要区别在于，本实施例中加热腔120的横截面轮廓线C呈正四边形，且每两条相邻的棱边之间直接连接。
图9示出了本发明第五实施例中加热腔120的横截面轮廓线C的示意图，其与第一实施例的主要区别在于，本实施例中加热腔120的横截面轮廓线C呈正四边形，且每两条相邻的棱边之间采用圆弧过渡连接。
图10示出了本发明第六实施例中加热腔120的横截面轮廓线C的示意图，其与第一实施例的主要区别在于，本实施例中加热腔120的横截面轮廓线C呈正六边形，且每两条相邻的棱边之间直接连接。
图11示出了本发明第七实施例中加热腔120的横截面轮廓线C的示意图，其与第一实施例的主要区别在于，本实施例中加热腔120的横截面轮廓线C呈莱洛多边形，其具有奇数个弧形边。加热腔120的奇数个弧形面与气溶胶产生基质200的接触面积更大。具体地，在本实施例中，该横截面轮廓线C呈莱洛三角形。在其他实施例中，该横截面轮廓线C也可以呈莱洛五边形、七边形等。
图12示出了本发明第八实施例中的加热组件1，其与第二实施例的主要区别在于，在本实施例中，导向部件11内形成有导入腔110以及与导入腔110轴向连通的过渡腔113。该导入腔110具有靠近加热管12的第二端112以及远离加热管12的第一端111。该导入腔110在第一端111和第二端112分别具有一横截面A和横截面B，该横截面A的截面积大于横截面B的截面积。该导入腔110的横截面B的截面形状与加热腔120的横截面形状相匹配，且该横截面B的截面积小于或等于加热腔120的横截面积。
过渡腔113的上端与导入腔110的第二端112相连通，过渡腔113的上端的横截面形状和尺寸可与导入腔110的第二端112的横截面形状和尺寸相适配。过渡腔113的下端与加热腔120的上端相连通，过渡腔113的下端的横截面形状和尺寸可与加热腔120的上端的横截面形状和尺寸相适配。
图13-14示出了本发明第九实施例中的加热组件1，其与第二实施例的主要区别在于，在本实施例中，加热腔120的横截面为跑道圆形，该跑道圆形横截面的最大内切圆的直径与跑道圆形横截面的短轴长度一致。在气溶胶产生基质200收容在加热腔120中时，气溶胶产生基质200的外壁面和加热腔120的腔壁之间可形成有两个气流通道121，该两个气流通道121分别位于加热腔120的长轴两侧。可以理解地，在其他实施例中，加热腔120的横截面也可以为其它非圆形，较佳为轴对称的非圆形。
相应地，导入腔110与加热腔120相连通的第二端112的横截面形状为与加热腔120的横截面形状一致的跑道圆形，且导入腔110的第二端112的横截面尺寸与加热腔120的横截面尺寸一致。导入腔110的第一端111的横截面形状可呈圆形，导入腔110的横截面形状从第一端111的圆形渐变为第二端112的跑道圆形。
此外，在本实施例中，加热组件1上还可开设有若干个与加热腔120相连通的通孔10。该通孔10可根据需要开设于加热组件1的任意位置。例如，该通孔10可开设于导向部件11和/或加热管12的侧壁上，和/或，该通孔10也可开设于支撑壁13和/或限位凸台14上。通孔10的形状、尺寸和数量均不做限制。
图15-17示出了本发明第十实施例中的加热组件1，该加热组件1可包括加热管12、设置于加热管12顶部的导向部件11、设置于加热管12底部的支撑壁13以及套设于加热管12外的外管16。导向部件11、加热管12、支撑壁13、外管16分别单独成型后再组装在一起。
具体地，加热管12为正三棱管，加热管12的轴向长度可以为25-31mm。加热管12的内壁面界定出用于收容并加热气溶胶产生基质200的加热腔120，该加热腔120的横截面呈正三棱形，且该三个棱边之间为圆弧过渡连接。加热腔120的横截面轮廓线具有一最大内切圆，该最大内切圆的直径小于被挤压前的气溶胶产生基质200的外径。在气溶胶产生基质200插入至加热腔120中时，加热腔120的至少部分腔壁能够挤压气溶胶产生基质200，促使气溶胶产生基质200沿径向向内产生形变。
加热管12可采用高导热的金属或非金属材料制成。加热管12的外壁面可设置有发热部件17，该发热部件17包括发热体和/或电路板。在本实施例中，该发热部件17包括柔性电路板以及设置于柔性电路板上的厚膜发热体。在其他实施例中，该发热部件17也可仅包括发热体或者电路板，该发热体可以为发热膜、发热片或者发热丝等，该电路板可以为柔性电路板或者硬质电路板。
导向部件11可采用耐高温的高分子聚合物注塑成型，例如PEEK（聚醚醚酮）、高温尼龙等。导向部件11可包括主体部115、由主体部115的外壁面向外延伸的端壁116以及由端壁116向下延伸的环壁117。主体部115的内壁面界定出开口腔114和导入腔110。该开口腔114的横截面形状可与气溶胶产生基质200被挤压前的横截面形状相匹配，在本实施例中，该开口腔114的横截面形状为圆形。该开口腔114的横截面面积可大于或等于气溶胶产生基质200被挤压前的横截面积。该导入腔110具有远离加热管12的第一端111以及靠近加热管12的第二端112。该导入腔110的第一端111与开口腔114的下端相连通，该导入腔110在第一端111的横截面形状可与开口腔114的横截面形状相匹配。该导入腔110在第一端111的横截面面积可小于或等于开口腔114的横截面面积。
该导入腔110的第二端112的横截面面积小于其第一端111的横截面面积。该导入腔110的第二端112与加热腔120的上端相连通，导入腔110的第二端112的横截面形状和面积与加热腔120的横截面形状和面积相匹配。导入腔110从第一端111至第二端112可采用渐变过渡，即，导入腔110的横截面形状从第一端111的圆形渐变为第二端112的正三棱形。主体部115的外部横截面形状可与导入腔110的横截面形状相匹配。
端壁116可由主体部115的第一端111的外壁面沿径向向外延伸形成。环壁117可紧密地嵌置于外管16的上端开口中，其可由端壁116的外圈竖直向下延伸形成。环壁117的横截面可呈圆环状，且环壁117的内壁面与主体部115的外壁面之间形成有一环状的收容空间，用于收容第一隔热件155。
支撑臂13可嵌置于加热管12的下端开口处，其可采用高导热系数的金属或非金属材料制成。支撑臂13的中部向上弯折形成一限位凸台14，气溶胶产生基质200的下端面可抵靠于限位凸台14上实现支撑定位。
外管16可呈圆管状，并可采用高导热系数的金属，包括不锈钢、铜合金、铝合金等，例如430不锈钢、铜或铜合金。或者，外管16也可采用高导热系数的陶瓷等非金属材料制成，包括氧化铝、碳化硅、氮化铝、氮化硅等。外管16采用高导热材料制成，利于加热组件1的均匀发热。
此外，本实施例中的加热组件1还可包括设置于外管16和加热管12之间的隔热组件15。该隔热组件15可包括依次套设于加热管12外的第一隔热层151、第二隔热层152、第三隔热层153、散热层154。第一隔热层151、第三隔热层153的材料可以为气凝胶、石棉、玻璃纤维、聚醚醚酮、酰亚胺、聚醚酰亚胺或者陶瓷中的一种或者几种任意组合，较佳为气凝胶。散热层154的材料可以为石墨片或者石墨烯片。
该第二隔热层152可以为真空管。该隔热组件15还可包括分别设置于真空管轴向两端的第一隔热件155和第二隔热件156。第一隔热件155和第二隔热件156可采用低导热材料制成，较佳为硅胶等具有低导热系数的弹性材料制成。通过第一隔热件155和第二隔热件156分别包裹住真空管两端的高温区，实现隔热保温以及密封功能。可以理解地，在其他实施例中，隔热组件15也可51仅由第一隔热层151、第二隔热层152、第三隔热层153、散热层154中的一个或几个组成，第一隔热层151、第二隔热层152、第三隔热层153、散热层154的相对位置关系也可根据需要进行调整，例如，散热层154也可设置于第一隔热层151和第二隔热层152之间。
在本实施例中，加热组件1还可包括嵌置于外管16底部的底座18。底座18可采用PEEK等耐高温材料制成，并可紧密地套设于外管16的内壁面和第二隔热件156的外壁面之间。
此外，该加热组件1还可包括温度检测元件19，温度检测元件19可设置于支撑臂13的底部，可检测气溶胶产生基质200的底部温度，同时还可通过温度变化检测抽吸口数。温度检测元件19可以为具有负温度系数的热敏电阻，并可夹持于支撑臂13和第二隔热件156之间。
图18-19示出了本发明一些实施例中的气溶胶产生装置100，该气溶胶产生装置100大致可呈长方形柱状并可包括壳体2以及设置于壳体2内的加热组件1、主板3和电池4。其中，加热组件1可采用上述任一实施例中的加热组件结构。可以理解地，在其他实施例中，该气溶胶产生装置100并不局限于呈长方形柱状，其也可以呈方形柱状、圆柱状、椭圆柱状等其他形状。
壳体2的顶部设有供气溶胶产生基质200插入的插口20，插口20的横截面形状和尺寸与气溶胶产生基质200的横截面形状和尺寸相适配，气溶胶产生基质200可经由插口20插入到加热组件1中与加热组件1的内壁面接触。加热组件1在通电发热后，可以将热量传递给气溶胶产生基质200，从而实现对气溶胶产生基质200的烘烤加热。主板3分别与电池4、加热组件1电连接。主板3上布置有相关的控制电路，可借由设置于壳体2上的开关5控制电池4与加热组件1之间的通断。壳体2的顶部还可设置有一个用于遮挡或显露插口20的防尘盖6。在不需要使用气溶胶产生装置100时，可推动防尘盖6将插口20遮挡住，防止灰尘进入到插口20。在需要使用时，推动防尘盖6将插口20露出，以便气溶胶产生基质200从插口20插入。
该气溶胶产生基质200可包括外包层210以及设置于外包层210内底部的雾化基质220。其中，外包层210可以为外包纸。雾化基质220可以是用于医疗或养生目的的材料，例如，固态片状或丝状的植物根、茎、叶等植物类材料。气溶胶产生装置100对插接于其中的气溶胶产生基质200进行低温烘烤加热，以在不燃烧的状态下释放雾化基质220中的气溶胶提取物。进一步地，该气溶胶产生基质200还可以包括设置于外包层210中并沿纵向依次设置于雾化基质220上方的中空支撑段230、降温段240及过滤段250。该气溶胶产生基质200的横截面形状也不局限于呈圆形，其也可以呈椭圆形、方形、多边形等其他形状。
可以理解地，上述各技术特征可以任意组合使用而不受限制。
以上实施例仅表达了本发明的具体实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制；应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，可以对上述技术特点进行自由组合，还可以做出若干变形和改进，这些都属于本发明的保护范围；因此，凡跟本发明权利要求范围所做的等同变换与修饰，均应属于本发明权利要求的涵盖范围。

Claims (17)

  1. 一种加热组件，其特征在于，包括加热管（12）以及与所述加热管（12）轴向连接的导向部件（11），所述加热管（12）内形成有用于容纳并加热气溶胶产生基质（200）的加热腔（120），所述加热腔（120）的横截面轮廓为多边形；
    所述导向部件（11）内形成有与所述加热腔（120）相连通的导入腔（110），所述导入腔（110）具有远离所述加热腔（120）的第一端（111）以及靠近所述加热腔（120）的第二端（112），所述导入腔（110）的所述第一端（111）的横截面形状与所述气溶胶产生基质（200）的横截面外形相匹配，所述导入腔（110）的所述第二端（112）的横截面形状与所述加热腔（120）的横截面形状相匹配，所述导入腔（110）从所述第一端（111）至所述第二端（112）为渐变过渡。
  2. 根据权利要求1所述的加热组件，其特征在于，所述加热腔（120）的横截面轮廓具有一最大内切圆，所述最大内切圆的直径小于所述气溶胶产生基质（200）的外径。
  3. 根据权利要求2所述的加热组件，其特征在于，所述最大内切圆的直径为3-9mm。
  4. 根据权利要求2所述的加热组件，其特征在于，所述最大内切圆的直径比所述气溶胶产生基质（200）的外径小0.2-2.0mm。
  5. 根据权利要求1所述的加热组件，其特征在于，所述加热腔（120）的横截面轮廓为正多边形或莱洛多边形。
  6. 根据权利要求1所述的加热组件，其特征在于，在所述加热腔（120）容纳有所述气溶胶产生基质（200）的状态，所述气溶胶产生基质（200）的外壁面和所述加热腔（120）的腔壁之间还形成有多个气流通道（121）；所述多个气流通道（121）分别位于所述加热腔（120）的每两个棱边的相接处。
  7. 根据权利要求1所述的加热组件，其特征在于，所述加热管（12）与所述导向部件（11）一体成型。
  8. 根据权利要求1-7任一项所述的加热组件，其特征在于，所述导入腔（110）的所述第一端（111）的横截面形状与所述第二端（112）的横截面形状不同。
  9. 根据权利要求1-7任一项所述的加热组件，其特征在于，所述导入腔（110）的所述第一端（111）的横截面形状为圆形或多边形。
  10. 根据权利要求1-7任一项所述的加热组件，其特征在于，所述导入腔（110）的所述第二端（112）的横截面面积小于所述第一端（111）的横截面面积。
  11. 根据权利要求1-7任一项所述的加热组件，其特征在于，所述导入腔（110）的所述第一端（111）的横截面面积大于或等于所述气溶胶产生基质（200）的横截面面积。
  12. 根据权利要求1-7任一项所述的加热组件，其特征在于，所述导入腔（110）的所述第二端（112）的横截面面积小于或等于所述加热腔（120）的横截面面积。
  13. 根据权利要求1-7任一项所述的加热组件，其特征在于，所述导向部件（11）内还形成有连通在所述导入腔（110）和所述加热腔（120）之间的过渡腔（113）。
  14. 根据权利要求13所述的加热组件，其特征在于，所述过渡腔（113）的横截面形状与所述加热腔（120）的横截面形状相匹配。
  15. 根据权利要求1-7任一项所述的加热组件，其特征在于，所述导向部件（11）内还形成有连通在所述导入腔（110）的所述第一端（111）的开口腔（114）。
  16. 根据权利要求15所述的加热组件，其特征在于，所述开口腔（114）的横截面形状与所述气溶胶产生基质（200）的横截面外形相匹配；所述开口腔（114）的横截面面积大于或等于所述导入腔（110）的所述第一端（111）的横截面面积。
  17. 一种气溶胶产生装置，其特征在于，包括权利要求1-16任一项所述的加热组件。
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CN113729286A (zh) * 2021-09-08 2021-12-03 深圳麦克韦尔科技有限公司 加热组件及气溶胶产生装置
CN216293048U (zh) * 2021-09-08 2022-04-15 深圳麦克韦尔科技有限公司 加热组件及气溶胶产生装置

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