WO2025237293A1 - 气雾生成装置及用于气雾生成装置的加热器 - Google Patents

气雾生成装置及用于气雾生成装置的加热器

Info

Publication number
WO2025237293A1
WO2025237293A1 PCT/CN2025/094595 CN2025094595W WO2025237293A1 WO 2025237293 A1 WO2025237293 A1 WO 2025237293A1 CN 2025094595 W CN2025094595 W CN 2025094595W WO 2025237293 A1 WO2025237293 A1 WO 2025237293A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
heating element
aerosol generating
heating
aerosol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/094595
Other languages
English (en)
French (fr)
Inventor
王晨
张淑媛
雷宝灵
徐中立
李永海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen FirstUnion Technology Co Ltd
Original Assignee
Shenzhen FirstUnion Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen FirstUnion Technology Co Ltd filed Critical Shenzhen FirstUnion Technology Co Ltd
Publication of WO2025237293A1 publication Critical patent/WO2025237293A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A24F40/10—Devices using liquid inhalable precursors
    • 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
    • A24F40/42—Cartridges or containers for inhalable precursors
    • 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

Definitions

  • This application relates to the field of heated non-combustible aerosol generation technology, and in particular to an aerosol generation device and a heater for the aerosol generation device.
  • Tobacco products (such as cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion.
  • heating devices that release compounds by heating rather than burning materials.
  • the material could be an aerosol-generating article containing tobacco or other non-tobacco products, which may or may not contain nicotine.
  • Known heating devices contain and heat the aerosol-generating article by means of a tubular heater made of a conductive ceramic material, and generate Joule heating by arranging electrodes at opposite ends of the tubular heater along its axial direction by directing current through the heater.
  • an aerosol generating apparatus configured to heat an aerosol generating article to generate an aerosol; comprising:
  • a heating element surrounds or defines at least a portion of the chamber and is used to heat the aerosol-generating article; the heating element includes a first end near the opening and a second end away from the first end;
  • the first electrode and the second electrode are arranged at intervals along the circumference of the heating element; the first distance between the first electrode and/or the second electrode and the first end is smaller than the second distance between the first electrode and the second end;
  • the circuit is arranged to guide current through the heating element by connecting one of the first electrode and the second electrode to the positive terminal of the battery cell and the other to the negative terminal of the battery cell.
  • the second spacing is greater than or equal to 1/2 of the axial length of the heating element.
  • the heating element is prepared by molding and sintering a conductive ceramic material, or the heating element is or only comprises a conductive ceramic body.
  • the thermal conductivity of the heating element is greater than 20 W/m ⁇ K.
  • the thermal conductivity of the heating element is between 25 and 40 W/m ⁇ K.
  • the heating element is arranged in a tubular shape
  • the circumference of the heating element is greater than the axial length of the heating element; and/or, the axial length of the heating element does not exceed 15 mm.
  • the first spacing is between 0.5 and 2.0 mm.
  • the first electrode and the second electrode are arranged opposite each other along the radial direction of the heating element.
  • the resistance of the heating element is between 0.5 and 5 ⁇ .
  • the first electrode and/or the second electrode have a first dimension along the axial direction of the heating element and a second dimension along the circumferential direction of the heating element;
  • the first dimension is smaller than the second dimension.
  • the first dimension is between 1 and 4 mm; and/or, the second dimension is between 5 and 11 mm.
  • the heating element includes:
  • the first part When current is guided through the first electrode and the second electrode on the heating element, the first part can generate heat through resistive Joule heating, and the second part generates heat by receiving the heat transferred from the first part.
  • the first electrode and/or the second electrode have a second dimension along the circumferential direction of the heating element
  • the second dimension varies in the axial direction of the heating element.
  • the first electrode and/or the second electrode includes a first segment near the first end and a second segment near the second end;
  • the dimension of the first section in the circumferential direction of the heating body is smaller than the dimension of the second section in the circumferential direction of the heating body.
  • the heating element includes:
  • the first part is adjacent to or defines the first end; the second part is adjacent to or defines the second end; the inner diameter of the first part is smaller than the inner diameter of the second part;
  • the inner surface of the first part contacts and abuts against the outer surface of the aerosol generating article, thereby heating the aerosol generating article mainly by means of contact heat conduction;
  • the inner surface of the second part forms or defines a gap with the outer surface of the aerosol generating article, thereby heating the aerosol generating article mainly by means of radiating heat or radiating infrared radiation.
  • the inner diameter of the first portion is 0.5 to 3.0 mm larger than the inner diameter of the second portion.
  • the inner diameter of the heating element gradually decreases along the direction close to the first end.
  • the heating element includes:
  • the first part is located near or defines the first end
  • the second part is located near or defines the second end
  • At least one or more thermal barriers are formed between the first portion and the second portion to reduce the transfer of heat from the first portion to the second portion.
  • an aerosol generating device configured to heat an aerosol generating article to generate an aerosol; comprising:
  • a heating element surrounds or defines at least a portion of the chamber and is used to heat the aerosol-generating article; the heating element includes a first end near the opening and a second end away from the first end;
  • a first electrode and a second electrode are arranged at intervals along the circumference of the heating body for guiding current on the heating body; the first electrode and/or the second electrode includes a first segment near the first end and a second segment near the second end; the dimension of the first segment in the circumference of the heating body is greater than the dimension of the second segment in the circumference of the heating body.
  • the first and second electrodes are arranged circumferentially around the heating element to guide current on the heating element; the first and/or second electrodes include a first segment near the first end and a second segment near the second end; the dimension of the first segment in the circumferential direction of the heating element is smaller than the dimension of the second segment in the circumferential direction of the heating element.
  • the circumferential dimensions of the first and/or second electrodes in the heating element gradually decrease towards the first end; or, the circumferential dimensions of the first and/or second electrodes in the heating element are trapezoidal, gradually increasing towards the direction away from the first end.
  • the first and/or second electrodes are stepped, with the width increasing towards the direction away from the first end.
  • an aerosol generating device configured to heat an aerosol generating article to generate an aerosol; comprising:
  • a heating element made of conductive ceramic material surrounds or defines at least a portion of the chamber and is used to heat an aerosol-generating article; a first electrode and a second electrode are arranged at intervals on the heating element for guiding current on the heating element to generate heat through resistive Joule heating.
  • the heating element includes a first portion near the opening and a second portion away from the opening; the inner diameter of the first portion is smaller than the inner diameter of the second portion.
  • the inner surface of the first part contacts and abuts against the outer surface of the aerosol generating article, thereby heating the aerosol generating article mainly by means of contact heat conduction;
  • the inner surface of the second part forms or defines a gap with the outer surface of the aerosol generating article, thereby heating the aerosol generating article mainly by means of radiating heat or radiating infrared radiation.
  • an aerosol generating device configured to heat an aerosol generating article to generate an aerosol; comprising:
  • a heating element surrounds or defines at least a portion of the chamber and is used to heat the aerosol-generating article; the heating element includes a first portion adjacent to the opening and a second portion opposite to the opening;
  • a first electrode and a second electrode are arranged on the first part and away from the second part; when current is guided through the first electrode and the second electrode on the heating body, the first part can be heated by resistive Joule heating, and the second part is heated by receiving the heat transferred from the first part.
  • an aerosol generating device configured to heat an aerosol generating article to generate an aerosol; comprising:
  • a heating element made of conductive ceramic material surrounds or defines at least a portion of the chamber and is used to heat an aerosol-generated article
  • the first electrode and the second electrode are arranged at intervals along the circumference of the heating body for guiding current on the heating body;
  • the heating element includes a first portion adjacent to the opening and a second portion away from the opening; at least one or more thermal barriers are formed between the first portion and the second portion to reduce the transfer of heat from the first portion to the second portion.
  • a heater for an aerosol generating device comprising:
  • the first and second ends are opposite to each other;
  • a tubular heating element made of conductive ceramic material extends from the first end to the second end;
  • the first electrode and the second electrode are arranged at intervals along the circumference of the heating body to guide current in the circumference of the heating body;
  • a first electrode and a second electrode are arranged at intervals along the circumference of the heating body for guiding current on the heating body; the first electrode and/or the second electrode includes a first segment near the first end and a second segment near the second end; the dimension of the first segment in the circumference of the heating body is greater than the dimension of the second segment in the circumference of the heating body.
  • a heater for an aerosol generating device comprising:
  • the first and second ends are opposite to each other;
  • a tubular heating element made of conductive ceramic material extends from a first end to a second end; the heating element includes a first portion adjacent to or defining the first end and a second portion adjacent to or defining the second end; the inner diameter of the first portion is smaller than the inner diameter of the second portion.
  • the first electrode and the second electrode are arranged at intervals along the circumference of the heating element on the first portion and avoid the second portion.
  • a heater for an aerosol generating device comprising:
  • the first and second ends are opposite to each other;
  • a tubular heating element made of conductive ceramic material extends from the first end to the second end; the heating element includes a first portion adjacent to or defining the first end and a second portion adjacent to or defining the second end;
  • the first electrode and the second electrode are arranged at intervals along the circumference of the heating element on the first portion and avoid the second portion;
  • At least one or more thermal barriers are formed between the first portion and the second portion to reduce the transfer of heat from the first portion to the second portion.
  • a heater for an aerosol generating device comprising:
  • the first and second ends are opposite to each other;
  • a tubular heating element extends from the first end to the second end
  • the first electrode and the second electrode are arranged at intervals along the circumference of the heating body to guide current in the circumference of the heating body; the first distance between the first electrode and/or the second electrode and the first end is smaller than the second distance between the first electrode and the second end.
  • the second spacing is greater than or equal to 1/2 of the axial length of the heating element.
  • the current density of the electrode arrangement on the heating body near the first end is greater than that near the second end, which is beneficial for creating a temperature difference along the axial direction of the heating body.
  • Figure 1 is a schematic diagram of an aerosol generating device provided in an embodiment
  • Figure 2 is a structural schematic diagram of the heater in Figure 1 from one perspective
  • Figure 3 is a schematic diagram of the working current of the heater in Figure 2 from the circumferential unfolding view
  • Figure 4 is a schematic diagram of the operating current of the heater in another embodiment from the circumferential unfolding view.
  • Figure 5 is a structural schematic diagram of the heater from one perspective of another embodiment
  • Figure 6 is a structural schematic diagram of the heater from one perspective of another embodiment
  • Figure 7 is a cross-sectional schematic diagram of the heater of another embodiment from one perspective
  • Figure 8 is a cross-sectional schematic diagram of the heater of another embodiment from one perspective
  • Figure 9 is a structural schematic diagram of the heater from one perspective of another embodiment.
  • Figure 10 shows temperature sampling data at different locations during the heater heating process in one embodiment
  • Figure 11 shows temperature sampling data at different locations during the heater heating process in another embodiment.
  • One embodiment of this application provides an aerosol generating device 100 that heats rather than burns an aerosol generating article 1000, such as a cigarette, thereby causing at least one component of the aerosol generating article 1000 to volatilize or release to form an aerosol for inhalation, as shown in FIG1, for example.
  • the aerosol-generating article 1000 preferably uses a tobacco-containing material from which volatile compounds are released from the matrix upon heating; or it may be a non-tobacco material suitable for electric heating and smoke generation after heating.
  • the aerosol-generating article 1000 preferably uses a solid matrix, which may include one or more of the following: powder, granules, fragments, strips, or sheets of vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco, dried flowers, tea leaves, etc.; or, the solid matrix may contain additional tobacco or non-tobacco volatile aroma compounds to be released when the matrix is heated.
  • the structure of an aerosol generating device 100 according to one embodiment of this application can be seen in FIG1.
  • the overall shape of the device is generally elongated.
  • the aerosol generating device 100 includes:
  • the chamber has an opening 40; in use, the aerosol-generating article 1000 can be removably received in the chamber through the opening 40.
  • the heater 30 is arranged to at least partially surround or define the chamber; when the aerosol generating article 1000 is received in the chamber, the heater 30 surrounds and heats the aerosol generating article 1000 from the outside, thereby causing the aerosol generating article 1000 to release a variety of volatile compounds, which are formed only by heat treatment.
  • the battery cell 10 is used for power supply; more preferably, the battery cell 10 is a rechargeable DC battery cell 10, which can be charged by connecting to an external power source.
  • Circuit board 20 such as a PCB board or FPC board, has circuitry arranged for guiding current between cell 10 and heater 30.
  • the heater 30 is arranged in a tubular shape, and at least a portion of the tubular hollow portion of the heater 30 forms or defines a chamber for receiving the aerosol generating article 1000.
  • the heater 30 at least partially surrounds or encloses the aerosol generating article 1000 and heats it from its outer periphery. Furthermore, when the aerosol generating article 1000 is received within the housing 10, it is at least partially contained and held within the heater 30.
  • the heater 30 may have an inner diameter d11 of approximately 5.8 mm to 10 mm. In some embodiments, the heater 30 may have a length d12 of approximately 10 mm to 15 mm. In embodiments, the circumferential length or circumference of the heater 30 is greater than the axial length d12 of the heater 30. In some embodiments, the axial length d12 of the heater 30 is not more than 15 mm or less; preferably, the axial length d12 of the heater 30 is between 9 and 15 mm. In some specific embodiments, the heater 30 may have an inner diameter d11 of 7.6 mm; the heater 30 may have a length d12 of 11 mm.
  • the heater 30 includes:
  • a tubular heating element 31 made of conductive ceramic material
  • a first electrode 321 and a second electrode 322 are formed on the outer surface of the heating element 31.
  • the heating element 31 is dense. In some specific embodiments, the porosity of the heating element 31 is less than 5%; more preferably, the porosity of the heating element 31 is less than 3%.
  • the wall thickness of the heating element 31 is between 0.3 and 2.0 mm. In some specific embodiments, the wall thickness of the heating element 31 is 0.6 mm.
  • the tubular heating element 31 made of conductive ceramic material is prepared by injection molding the raw material of conductive ceramic material into a mold and then sintering and solidifying it.
  • the preparation process may include: mixing the raw material of conductive ceramic material with a liquid solvent to form an injectable slurry; then injecting the slurry into the cavity of the mold to form a tubular green body; demolding to obtain the green body and then sintering and solidifying it to obtain the heating element 31.
  • the heating element 31 is independently molded from a conductive ceramic material. Therefore, in these embodiments, the tubular heating element 31 made of conductive ceramic material includes or has only a single heating element, rather than a composite heating element formed by combining multiple functional elements of different materials.
  • a composite heating element may include a supporting electrically insulating substrate (e.g., electrically insulating ceramic or surface insulating metal), a heating element formed by printing, depositing, wrapping, or mounting resistance heating traces, coatings, or etched meshes bonded to the surface of the electrically insulating substrate.
  • the heating element 31 is or only includes a conductive ceramic body.
  • the thermal conductivity of the heating element 31 is designed to be higher than that of conventional glass or ceramics; typically, the thermal conductivity of glass is approximately 1 W/m ⁇ K, and the thermal conductivity of ceramics is typically less than 20 W/m ⁇ K or even lower, less than 10 W/m ⁇ K. In this embodiment, the thermal conductivity of the heating element 31 is greater than 20 W/m ⁇ K; more preferably, the thermal conductivity of the heating element 31 is between 20 and 50 W/m ⁇ K.
  • the thermal conductivity of the heating element 31 is greater than 25 W/m ⁇ K; in some specific embodiments, the thermal conductivity of the heating element 31, made of conductive ceramic material, is between 25 and 40 W/m ⁇ K. Alternatively, in still other specific embodiments, the thermal conductivity of the heating element 31 is approximately 30 W/m ⁇ K. In these embodiments, by having the thermal conductivity of the heating element 31 within the above range, it is advantageous for forming Joule heating and a temperature field difference in a portion of the heating area by arranging the first electrode 321 and the second electrode 322.
  • the relatively improved thermal conductivity of the heating element 31 is achieved by increasing the content of a metal oxide component with relatively high thermal conductivity, such as alumina or titanium oxide, which is a ceramic phase, thereby enabling the heating element 31 to achieve the above-mentioned thermal conductivity.
  • the relatively improved thermal conductivity of the heating element 31 is achieved by adding a conductive metal, such as gold, silver, or copper, that improves thermal conductivity to the conductive ceramic material, thereby enabling the heating element 31 to achieve the above-mentioned thermal conductivity.
  • the resistivity of the heating element 31, made of conductive ceramic material is between 1 ⁇ 10 ⁇ 4 ⁇ cm and 1.3 ⁇ 10 ⁇ 1 ⁇ cm.
  • the resistance value of the heating element 31 measured by the first electrode 321 and the second electrode 322 is between 0.5 and 5 ⁇ .
  • the resistance value of the heating element 31 measured by the first electrode 321 and the second electrode 322 is between 0.8 and 1.5 ⁇ .
  • the resistance value of the heating element 31 measured by the first electrode 321 and the second electrode 322 is approximately 1.0 ⁇ .
  • the battery cell 10 has an output voltage of approximately 3.7 to 4.5V; then, during use, when the circuit board 20 supplies power to the heating element 31 through the first electrode 321 and the second electrode 322, the operating power of the heating element 31 is approximately between 10 and 40W.
  • the conductive ceramic material of the heating element 31 includes a main component and a doped component.
  • the main component accounts for a mass percentage of the conductive ceramic greater than 80% and less than or equal to 98%; the doped component accounts for a mass percentage of the conductive ceramic greater than 1% and less than or equal to 20%.
  • the main component includes a first metal oxide
  • the dopant component includes a second metal oxide
  • the valence of the metal in the first metal oxide is different from the valence of the metal in the second metal oxide.
  • the valence of the metal in the first metal oxide is less than the valence of the metal in the second metal oxide; or in some embodiments, the valence of the metal in the first metal oxide is greater than the valence of the metal in the second metal oxide.
  • the valence of the metal in the second metal oxide is higher than valence tri.
  • the main component includes zinc oxide; the dopant includes at least one selected from aluminum oxide, zirconium dioxide, titanium dioxide, or niobium pentoxide. In some embodiments, zinc oxide accounts for 94% to 97% of the mass of the conductive ceramic. In some embodiments, the dopant includes aluminum oxide, which accounts for 0.5% to 5% of the mass of the conductive ceramic.
  • the main component includes titanium dioxide; the dopant component includes at least niobium pentoxide.
  • the mass percentage of titanium dioxide in the conductive ceramic is between 85% and 95%; the mass percentage of niobium pentoxide in the conductive ceramic is between 5% and 20%.
  • the main component includes tantalum pentoxide; the dopant component includes at least one of titanium dioxide or zirconium dioxide.
  • the main component includes at least one of a conductive metal boride, metal nitride, or metal carbide; the dopant component includes at least one of a non-conductive metal oxide or metal nitride.
  • the main component includes at least one of titanium boride, titanium nitride, or titanium carbide.
  • the dopant includes at least one of silicon dioxide or zirconium dioxide.
  • the main component accounts for 20% to 80% of the mass percentage of the conductive ceramic. In some embodiments, the dopant component accounts for 30% to 80% of the mass percentage of the conductive ceramic.
  • the conductive ceramic material of the heating element 31 further includes a conductive resistivity/thermal conductivity regulating component to control the resistivity or thermal conductivity of the conductive ceramic within a target range.
  • the conductive resistivity/thermal conductivity regulating component includes at least one of a conductive metal carbide, a metal boride, carbon powder, or conductive metal powder.
  • the metal carbide includes silicon carbide; and/or the metal boride includes titanium boride.
  • the conductive metal powder includes at least one of gold powder, silver powder, or copper powder.
  • the conductive resistivity/thermal conductivity modulating component accounts for 10% to 50% of the mass percentage of the conductive ceramic.
  • the conductive ceramic material of the heating element 31 includes 94-97% zinc oxide, 0.8-5% aluminum oxide, 0-1% titanium dioxide, and 0-0.5% zirconium dioxide by mass.
  • the conductive ceramic material of the heating element 31 includes 85% to 95% titanium dioxide and 5% to 20% niobium pentoxide by mass.
  • the conductive ceramic material of the heating element 31 includes 5-10% by mass titanium boride, 80-90% by mass zinc oxide, and 1-5% by mass aluminum oxide.
  • the conductive ceramic material of the heating element 31 includes 40-70% titanium boride, 30-60% zirconium dioxide, and 0.1-5% silicon dioxide by mass.
  • the conductive ceramic material of the heating element 31 includes 20-50% by mass titanium boride, 30-50% by mass zirconium dioxide, and 10-30% by mass copper powder, silver powder, or gold powder.
  • the heating element 31 includes:
  • a first end 310 and a second end 320 are opposite to each other in the axial direction; the first end 310 is arranged toward the opening 40; in use, the aerosol generating article 1000 can be received from the first end 310 into or removed from the heating body 31.
  • a first portion 311 and a second portion 312 are arranged axially; wherein the first portion 311 is adjacent to or defines a first end 310, and the second portion 312 is adjacent to and defines a second end 320.
  • the first portion 311 and the second portion 312 are continuous; there is no separation or dividing boundary between the first portion 311 and the second portion 312.
  • the first electrode 321 and the second electrode 322 are attached to the outer surface of the heating body 31 and are arranged opposite to each other along the radial direction of the heating body 31.
  • the first electrode 321 and/or the second electrode 322 includes at least one of an electrode ring, an electrode cap, an electrode sheet, a track electrode, or an electrode coating.
  • the first electrode 321 and/or the second electrode 322 is made of a metal or alloy with low resistivity.
  • the first electrode 321 and/or the second electrode 322 includes gold, silver, copper, or an alloy containing at least one of them.
  • the first electrode 321 and/or the second electrode 322 are obtained by forming a conductive paste containing the aforementioned low-resistivity metal or alloy on the outer surface of the heating element 31 by printing, spraying, or depositing, and then curing it.
  • the first electrode 321 and/or the second electrode 322 are obtained by printing conductive silver paste on the outer surface of the heating element 31 and then curing it.
  • the first electrode 321 and/or the second electrode 322 are arranged close to the first end 310; and the first electrode 321 and/or the second electrode 322 are located away from the second end 320. In some embodiments, the first electrode 321 and/or the second electrode 322 are located in the first portion 311 of the heating element 31 and avoid the second portion 312. The second portion 312 has no electrodes for conducting current thereon.
  • the first electrode 321 and/or the second electrode 322 have a first distance d21 with respect to the first end 310.
  • the first distance d21 is less than the second distance d23 between the first electrode 321 and/or the second electrode 322 and the second end 320.
  • the second distance d23 between the first electrode 321 and/or the second electrode 322 and the second end 320 is greater than or equal to half the axial length of the heating element 31.
  • the first electrode 321 and/or the second electrode 322 have a first dimension or height dimension d22 along the axial direction of the heater 30.
  • the first distance d21 is less than the first dimension or height dimension d22.
  • the first distance d21 is between 0.5 and 2.0 mm; the first dimension or height dimension d22 is between 1 and 4 mm. In some optional embodiments, the first distance d21 is approximately 1 mm; the first dimension or height dimension d22 is approximately 2 mm.
  • the first electrode 321 and/or the second electrode 322 have a second dimension or width dimension d24 along the circumferential direction of the heater 30.
  • the second dimension or width dimension d24 is larger than the first dimension or height dimension d22.
  • the second dimension or width dimension d24 is approximately between 5 and 11 mm.
  • the first electrode 321 and the second electrode 322 are electrically connected to the circuit board 20 by welding conductive leads, etc.; thus, in use, the circuit board 20 can operably connect the first electrode 321 and the second electrode 322 to the positive/negative poles of the battery cell 10, respectively, so as to guide current on the heating element 31.
  • the heating element 31 when the heating element 31 is powered through the first electrode 321 and the second electrode 322, a current i1 is formed on the heating element 31 flowing from the first electrode 321 to the second electrode 322.
  • the current i1 is essentially a circumferential current in the heating element 31.
  • the current i1 is primarily located in or formed in the first portion 311 of the heating element 31, while the second portion 312 is essentially free of current.
  • the first dimension or height dimension d22 is less than 1/4 of the axial length of the heating element 31, which is advantageous for increasing or widening the temperature difference between the first portion 311 and the second portion 312.
  • the heating element 31 when the heating element 31 is powered through the first electrode 321 and the second electrode 322, the first part 311 of the heating element 31 heats up through resistive Joule heating.
  • the second part 312 itself does not generate heat, but heats up by receiving the heat transferred from the first part 311, as shown by arrow R1 in Figure 3.
  • the circuitry on the circuit board 20 is configured to control the supply of power to the heating element 31 according to a predetermined heating curve, thereby causing the heating element 31 to heat the aerosol-generating article 1000 according to the predetermined heating curve.
  • a predetermined heating curve for example, the applicant has provided details of various heating curves for predetermined times in Chinese Patent CN112335940A, etc., the full text of which is incorporated herein by reference.
  • the temperature changes of the first part 311 and the second part 312 include:
  • the first part 311 is raised from room temperature to a predetermined temperature; in this first time phase, since the second part 312 can only generate heat by receiving heat transferred from the first part 311, the temperature of the first part 311 is greater than the temperature of the second part 312.
  • the first part 311 is kept within a predetermined temperature range for heating; in this second time phase, since the heating element 31 has the aforementioned improved thermal conductivity, the second part 312 receives the conducted heat more quickly and thus its temperature is substantially the same as or close to that of the first part 311.
  • the first electrode 321 and the second electrode 322 are arranged in a trapezoidal shape, rather than a conventional circular or square shape.
  • the second dimension or width dimension d24 of the first electrode 321 and/or the second electrode 322 varies.
  • the second dimension or width dimension d24 of the first electrode 321 and/or the second electrode 322 gradually increases towards the first end 310.
  • the width of the first segment of the first electrode 321 and/or the second electrode 322 near the first end 310 is greater than the width of the second segment near the second end 320.
  • the distance between the first electrode 321 and the second electrode 322 is varied, specifically, the distance between them gradually decreases in the direction close to the first end 310; thereby increasing the current density on the first portion 311 of the heating element 31 in the direction close to the first end 310, which is beneficial for forming a temperature difference on the heating element 31.
  • Figure 10 shows the temperature data of four temperature sampling points (A1/B1/C1/D1) along the axial direction of the heating element 31 in the first 11 seconds when the 12mm long heater 30 shown in Figures 2 and 3 is powered at 25W.
  • the distance between adjacent temperature sampling points is 2.5mm.
  • Point A1 is close to the first end 310 and 2.0mm away from it
  • point D1 is close to the second end 320 and 2.0mm away from it.
  • points A1 and B1 which are closer to the first end 310, heat up relatively faster.
  • Figure 4 shows a schematic diagram of the heater 30a in a circumferential unfolded view according to another embodiment; in this embodiment, the heater 30a includes:
  • a tubular heating element 31a extends between a first end 310a and a second end 320a; the heating element 31a includes a first portion 311a and a second portion 312a arranged continuously along the axial direction.
  • the first electrode 321a and the second electrode 322a are formed or combined on the outer surface of the heating body 31a and are arranged opposite to each other along the radial direction of the heating body 31a.
  • the first electrode 321a and the second electrode 322a are bonded to the first part 311a and are relatively close to the first end 310a.
  • the first electrode 321a and the second electrode 322a are electrically connected to the circuit board 20 by means of welding conductive leads, so that the circuit board 20 guides current on the first part 311a of the heating element 31a through the first electrode 321a and the second electrode 322a, as shown by arrow R2 in Figure 4.
  • the first part 311a heats up through resistive Joule heating
  • the second part 312a mainly heats up by receiving the heat transferred from the first part 311a, as shown by arrow R2 in Figure 4.
  • the first electrode 321a and the second electrode 322a are stepped; in FIG4, the first electrode 321a and the second electrode 322a include two segments with different widths; specifically, the width of the first segment of the first electrode 321a and/or the second electrode 322a near the first end 310a is greater than the width of the second segment away from the first end 310a; thereby making the current density on the first part 311a of the heating element 31a greater on the side near the first end 310a.
  • Figure 5 shows a schematic diagram of a heater 30b according to another embodiment; in this embodiment, the heater 30b includes:
  • a tubular heating element 31b extends between a first end 310b and a second end 320b; the heating element 31b includes a first portion 311b and a second portion 312b arranged continuously along the axial direction.
  • the first electrode 321b and the second electrode 322b are formed or combined on the outer surface of the heating body 31b and are arranged opposite to each other along the radial direction of the heating body 31b.
  • the first electrode 321b and the second electrode 322b have a longer extension dimension on the heating element 31b; the first electrode 321b and the second electrode 322b extend from the first portion 311b to the second portion 312b.
  • a first distance d31 is provided between the first electrode 321b and/or the second electrode 322b and the first end 310b, and a second distance d33 is provided between the first electrode 321b and/or the second electrode 322b and the second end 320b; the first distance d31 is smaller than the second distance d33.
  • the first distance d31 is approximately 1 mm
  • the second distance d33 is approximately between 2 and 4 mm.
  • the first electrode 321b and/or the second electrode 322b have a first dimension or height dimension d32 extending axially along the heating element 31b.
  • the first dimension or height dimension d32 is greater than half the axial length of the heating element 31b.
  • the first dimension or height dimension d32 is approximately 7 to 9 mm.
  • the first electrode 321b and/or the second electrode 322b are trapezoidal in shape and have varying width dimensions, thereby causing the heating element 31b to have different current densities in the axial direction, resulting in a temperature difference in the axial direction during the first time phase.
  • the first electrode 321b and/or the second electrode 322b are stepped in shape; the first electrode 321b and/or the second electrode 322b include a first segment located on a first portion 311a and a second segment located on a second portion 312a; both the first segment and the second segment are constant, and the width of the first segment is greater than the width of the second segment.
  • Figure 6 shows a schematic diagram of a heater 30c according to another embodiment; in this embodiment, a first electrode 321c and a second electrode 322c extend from a first end 310c to a second end 320c of the heating element 31c; in this embodiment, current can be simultaneously guided on the first portion 311c and the second portion 312c of the heating element 31c through the first electrode 321c and the second electrode 322c, causing them to heat up through resistive Joule heating.
  • the first electrode 321c and the second electrode 322c are trapezoidal in shape and have varying widths; thus, the current density on the first portion 311c is greater than the current density on the second portion 312c, resulting in faster heating in the first time phase.
  • FIG. 7 shows a schematic diagram of a heater 30d according to another embodiment; in this embodiment, the heater 30d includes:
  • a tubular heating element 31d extends between a first end 310d and a second end 320d; the heating element 31d includes a first portion 311d and a second portion 312d arranged continuously along the axial direction.
  • the first electrode 321d and the second electrode 322d are formed or combined on the outer surface of the heating body 31d and are arranged opposite to each other along the radial direction of the heating body 31d.
  • the first electrode 321d and the second electrode 322d are located in the first portion 311d, thereby guiding current only in the first portion 311d.
  • the outer diameter of the heating element 31d is constant; the first portion 311d and the second portion 312d have different inner diameters.
  • the wall thickness of the first portion 311d and the wall thickness of the second portion 312d are constant, and the wall thickness of the first portion 311d is greater than the wall thickness of the second portion 312d, thereby making the inner diameter of the second portion 312d greater than the inner diameter of the first portion 311d.
  • the inner surface of the second portion 312d does not contact the outer surface of the aerosol generating article 1000 and forms a gap or opening d41, allowing the second portion 312d to heat the aerosol generating article 1000 primarily through the radiation of heat or infrared radiation from the ceramic material itself, rather than through contact heat conduction.
  • This heating method where the heating body 31d heats different portions of the aerosol generating article 1000 in different ways, is advantageous for differentially or hierarchically stimulating volatile components.
  • the gap or opening d41 is between 0.25 and 1.5 mm.
  • the inner diameter of the first part 311d is 0.5 to 3.0 mm larger than the inner diameter of the second part 312d.
  • Figure 11 shows the temperature data of four axial temperature sampling points (A2/B2/C2/D2) of the heating element 31d in the first 11 seconds when the 12mm long heater 30d shown in Figure 7 is powered at 25W.
  • the interval between the four temperature sampling points is 2.5mm.
  • Point A2 is close to the first end 310a and 2.0mm away from it
  • point D2 is close to the second end 320a and 2.0mm away from it.
  • the wall thickness of the second part 312d is thinner, so the rapid heat conduction at points C2 and D2 reduces the temperature difference between them.
  • Figure 8 shows a schematic diagram of a heater 30e according to another embodiment; in this embodiment, the heater 30e includes:
  • a tubular heating element 31e extends between a first end 310e and a second end 320e; the heating element 31e includes a first portion 311e and a second portion 312e arranged continuously along the axial direction.
  • a first electrode 321e and a second electrode 322e are formed or bonded to the outer surface of the heating element 31e and are arranged opposite to each other in the radial direction of the heating element 31e.
  • the first electrode 321e and the second electrode 322e are located in the first portion 311e, thereby guiding current only in the first portion 311e.
  • the outer diameter of the heating element 31e is constant, while the inner diameter gradually changes. Specifically, the inner diameter of the heating element 31e gradually decreases along the direction near the first end 310e, thereby making the inner surface of the heating element 31e inclined. Thus, the inner diameter of the first portion 311e is smaller than the inner diameter of the second portion 312e.
  • FIG. 9 shows a schematic diagram of a heater 30f according to another embodiment, in which the heater 30e includes:
  • a tubular heating element 31f extends between a first end 310f and a second end 320f; the heating element 31f includes a first portion 311f and a second portion 312f arranged continuously along the axial direction;
  • the first electrode 321f and the second electrode 322f are formed or combined on the outer surface of the heating body 31f and are arranged opposite to each other along the radial direction of the heating body 31f.
  • At least one or more thermal barriers 313f are arranged on the heating element 31f between the first part 311f and the second part 312f; the thermal barriers 313f are used to reduce the transfer of heat from the first part 311f to the second part 312f. Therefore, in use, because the heating element 31f has a relatively high thermal conductivity, the temperature on the first part 311f is greater than the temperature on the second part 312f, and the temperature fields of the first part 311f and the second part 312f are substantially uniform or the same.
  • the thermal barrier 313f may be a groove or perforation formed on the outer surface of the heating element 31f to reduce heat transfer.

Landscapes

  • Resistance Heating (AREA)

Abstract

一种气雾生成装置（100）及用于气雾生成装置（100）的加热器（30）；其中，气雾生成装置（100）包括：腔室，具有敞口（40）；气溶胶生成制品（1000）能通过敞口（40）至少部分地接收于腔室内或从腔室内移除；加热体（31），围绕或界定腔室的至少一部分；加热体（31）包括靠近敞口（40）的第一端（310）、以及背离第一端（310）的第二端（320）；第一电极（321）和第二电极（322），沿加热体（31）的周向间隔地布置；第一电极（321）和/或第二电极（322）与第一端（310）的第一间距（d21），小于与第二端（320）的第二间距（d23）；电芯（10），用于供电；电路，通过将第一电极（321）和第二电极（322）中分别与电芯（10）的正极和负极连接，进而在加热体（31）上引导电流。以上气雾生成装置（100），通过电极的布置在加热体（31）上靠近第一端（310）的部分的电流密度大于靠近第二端（320）的电流密度，对于在加热体（31）的轴向上形成温差是有利的。

Description

气雾生成装置及用于气雾生成装置的加热器
相关申请的交叉参考
本申请要求于2024年5月14日提交中国专利局，申请号为202410609650.X，申请名称为“气雾生成装置及用于气雾生成装置的加热器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及加热不燃烧气雾生成技术领域，尤其涉及一种气雾生成装置及用于气雾生成装置的加热器。
背景技术
烟制品(例如，香烟、雪茄等)在使用过程中燃烧烟草以产生烟草烟雾。人们试图通过制造在不燃烧的情况下释放化合物的产品来替代这些燃烧烟草的制品。
此类产品的示例为加热装置，其通过加热而不是燃烧材料来释放化合物。例如，该材料可为包含烟草或其他非烟草产品的气溶胶生成制品，这些烟草或非烟草产品可包含或可不包含尼古丁。已知的加热装置，通过由导电陶瓷材料制备的管状加热器容纳并加热气溶胶生成制品，并通过在导电陶瓷的管状加热器的轴向相背的两端布置电极，从而在管状加热器的轴向上引导电流以产生焦耳热。
申请内容
本申请的一个实施例提供一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；包括：
腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；所述加热体包括靠近所述敞口的第一端、以及背离所述第一端的第二端；
第一电极和第二电极，沿所述加热体的周向间隔地布置；所述第一电极和/或所述第二电极与所述第一端的第一间距，小于与所述第二端的第二间距；
电芯，用于供电；
电路，被布置成通过将所述第一电极和所述第二电极中的一个与所述电芯的正极连接、另一个与所述电芯的负极连接，进而在所述加热体上引导电流。
在一些实施例中，所述第二间距大于等于所述加热体的轴向长度的1/2。
在一些实施例中，所述加热体由导电陶瓷材料模制后烧结制备，或者所述加热体是或者仅包括导电陶瓷体。
在一些实施例中，所述加热体的导热系数大于20W/m.k。
在一些实施例中，所述加热体的导热系数介于25～40W/m.k。
在一些实施例中，所述加热体被布置成是管状；
所述加热体的周长大于所述加热体的轴向长度；和/或，所述加热体的轴向长度不超过15mm。
在一些实施例中，所述第一间距介于0.5～2.0mm。
在一些实施例中，所述第一电极和所述第二电极沿所述加热体的径向相背布置。
在一些实施例中，当通过所述第一电极和所述第二电极在所述加热体上引导电流时，所述加热体的电阻值介于0.5～5Ω。
在一些实施例中，所述第一电极和/或所述第二电极具有沿所述加热体的轴向方向的第一尺寸，以及沿所述加热体的周向方向的第二尺寸；
所述第一尺寸小于所述第二尺寸。
在一些实施例中，所述第一尺寸介于1～4mm；和/或，所述第二尺寸介于5～11mm。
在一些实施例中，所述加热体包括：
第一部分，靠近或界定所述第一端；第二部分，靠近或界定所述第二端；所述第一电极和/或所述第二电极布置于所述第一部分上，且避开所述第二部分；
当通过所述第一电极和所述第二电极在所述加热体上引导电流时，所述第一部分能通过电阻焦耳热而发热，所述第二部分通过接收所述第一部分传递的热量而发热。
在一些实施例中，所述第一电极和/或所述第二电极具有沿所述加热体的周向方向的第二尺寸；
在所述加热体的轴向方向上，所述第二尺寸是变化的。
在一些实施例中，所述第一电极和/或所述第二电极包括靠近所述第一端的第一区段、以及靠近所述第二端的第二区段；
所述第一区段在所述加热体周向的尺寸，小于所述第二区段在所述加热体周向的尺寸。
在一些实施例中，所述加热体包括：
第一部分，靠近或界定所述第一端；第二部分，靠近或界定所述第二端；所述第一部分的内径小于所述第二部分的内径；
当气溶胶生成制品被接收于所述腔室内时，所述第一部分的内表面接触和抵靠气溶胶生成制品的外表面，进而主要地通过接触导热的方式加热气溶胶生成制品；所述第二部分的内表面与气溶胶生成制品的外表面形成或界定有间隙，进而主要地通过辐射热量或辐射红外的方式加热气溶胶生成制品。
在一些实施例中，所述第一部分的内径比所述第二部分的内径大0.5～3.0mm。
在一些实施例中，所述加热体的内径沿靠近所述第一端的方向逐渐减小。
在一些实施例中，所述加热体包括：
第一部分，靠近或界定所述第一端；
第二部分，靠近或界定所述第二端；
至少一个或多个热障，形成于所述第一部分和所述第二部分之间，以用于减少所述第一部分的热量向所述第二部分的传递。
本申请的又一个实施例还提出一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；包括：
腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；所述加热体包括靠近所述敞口的第一端、以及背离所述第一端的第二端；
第一电极和第二电极，沿所述加热体的周向间隔地布置，用于在所述加热体上引导电流；所述第一电极和/或所述第二电极包括靠近所述第一端的第一区段、以及靠近所述第二端的第二区段；所述第一区段在所述加热体周向的尺寸，大于所述第二区段在所述加热体周向的尺寸。
或者在又一些变化的实施例中，所述第一电极和第二电极，沿所述加热体的周向间隔地布置，用于在所述加热体上引导电流；所述第一电极和/或所述第二电极包括靠近所述第一端的第一区段、以及靠近所述第二端的第二区段；所述第一区段在所述加热体周向的尺寸，小于所述第二区段在所述加热体周向的尺寸。则在使用中，使第一电极和第二电极在加热体轴向上的电流或温度场相比上一实施例朝背离第二端部分地偏移是有利的。则在该实施例中，第一电极和/或第二电极在加热体周向的尺寸，沿靠近第一端的方向是逐渐减小的；或者，第一电极和/或第二电极在加热体周向的尺寸，沿背离第一端的方向逐渐增大的梯形。或者，第一电极和/或第二电极呈宽度沿背离第一端的方向增大的阶梯形状。
本申请的又一个实施例还提出一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；包括：
腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
由导电陶瓷材料制备的加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；所述加热体上布置有间隔的第一电极和第二电极，用于在所述加热体上引导电流使所述加热体通过电阻焦耳热而发热；
所述加热体包括靠近所述敞口的第一部分、以及背离所述敞口的第二部分；所述第一部分的内径小于所述第二部分的内径；
当气溶胶生成制品被接收于所述腔室内时，所述第一部分的内表面接触和抵靠气溶胶生成制品的外表面，进而主要地通过接触导热的方式加热气溶胶生成制品；所述第二部分的内表面与气溶胶生成制品的外表面形成或界定有间隙，进而主要地通过辐射热量或辐射红外的方式加热气溶胶生成制品。
本申请的又一个实施例还提出一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；包括：
腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；所述加热体包括靠近所述敞口的第一部分、以及背离所述敞口的第二部分；
第一电极和第二电极，布置于所述第一部分上，且避开所述第二部分；当通过所述第一电极和所述第二电极在所述加热体上引导电流时，所述第一部分能通过电阻焦耳热而发热，所述第二部分通过接收所述第一部分传递的热量而发热。
本申请的又一个实施例还提出一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；包括：
腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
由导电陶瓷材料制备的加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；
第一电极和第二电极，沿所述加热体的周向间隔地布置，用于在所述加热体上引导电流；
所述加热体包括靠近所述敞口的第一部分、以及背离所述敞口的第二部分；至少一个或多个热障，形成于所述第一部分和所述第二部分之间，以用于减少所述第一部分的热量向所述第二部分的传递。
本申请的又一个实施例还提出一种用于气雾生成装置的加热器，包括：
相背的第一端和第二端；
由导电陶瓷材料制备的管状的加热体，从所述第一端延伸至所述第二端；
第一电极和第二电极，沿所述加热体的周向间隔地布置，以用于在所述加热体的周向上引导电流；
第一电极和第二电极，沿所述加热体的周向间隔地布置，用于在所述加热体上引导电流；所述第一电极和/或所述第二电极包括靠近所述第一端的第一区段、以及靠近所述第二端的第二区段；所述第一区段在所述加热体周向的尺寸，大于所述第二区段在所述加热体周向的尺寸。
本申请的又一个实施例还提出一种用于气雾生成装置的加热器，包括：
相背的第一端和第二端；
由导电陶瓷材料制备的管状的加热体，从所述第一端延伸至所述第二端；所述加热体包括靠近或界定所述第一端的第一部分、以及靠近或界定所述第二端的第二部分；所述第一部分的内径小于所述第二部分的内径；
第一电极和第二电极，沿所述加热体的周向间隔地布置于所述第一部分上，且避开所述第二部分。
本申请的又一个实施例还提出一种用于气雾生成装置的加热器，包括：
相背的第一端和第二端；
由导电陶瓷材料制备的管状的加热体，从所述第一端延伸至所述第二端；所述加热体包括靠近或界定所述第一端的第一部分、以及靠近或界定所述第二端的第二部分；
第一电极和第二电极，沿所述加热体的周向间隔地布置于所述第一部分上，且避开所述第二部分；
至少一个或多个热障，形成于所述第一部分和所述第二部分之间，以用于减少所述第一部分的热量向所述第二部分的传递。
本申请的又一个实施例还提出一种用于气雾生成装置的加热器，包括：
相背的第一端和第二端；
管状的加热体，从所述第一端延伸至所述第二端；
第一电极和第二电极，沿所述加热体的周向间隔地布置，以用于在所述加热体的周向上引导电流；所述第一电极和/或所述第二电极与所述第一端的第一间距，小于与所述第二端的第二间距；
所述第二间距大于等于所述加热体的轴向长度的1/2。
以上气雾生成装置，通过电极的布置在加热体上靠近第一端的部分的电流密度大于靠近第二端的电流密度，对于在加热体的轴向上形成温差是有利的。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是一实施例提供的气雾生成装置的示意图；
图2是图1中加热器一个视角的结构示意图；
图3是图2中加热器周向展开视角工作电流的示意图；
图4是又一个实施例的加热器周向展开视角工作电流的示意图；
图5是又一个实施例的加热器一个视角的结构示意图；
图6是又一个实施例的加热器一个视角的结构示意图；
图7是又一个实施例的加热器一个视角的剖面示意图；
图8是又一个实施例的加热器一个视角的剖面示意图；
图9是又一个是实施例的加热器一个视角的结构示意图；
图10是一个实施例中加热器升温过程中不同位置的温度采样数据；
图11是又一个实施例的加热器升温过程中不同位置的温度采样数据。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施方式，对本申请进行更详细的说明。
本申请一个实施例提出一种加热而非燃烧气溶胶生成制品1000例如烟支，进而使气溶胶生成制品1000的至少一种成分挥发或释放形成供吸食的气溶胶的气雾生成装置100，例如图1所示。
在可选的实施中，气溶胶生成制品1000优选采用加热时从基质中释放的挥发化合物的含烟草的材料；或者也可以是能够加热之后适合于电加热发烟的非烟草材料。气溶胶生成制品1000优选采用固体基质，可以包括香草叶、烟叶、均质烟草、膨胀烟草、干花、茶叶等中的一种或多种的粉末、颗粒、碎片细条、条带或薄片中的一种或多种；或者，固体基质可以包含附加的烟草或非烟草的挥发性香味化合物，以在基质受热时被释放。
根据图1所示，当气溶胶生成制品1000接收于气雾生成装置100后，有部分是露出于气雾生成装置100外的例如过滤嘴，供用户抽吸是有利的。
本申请一个实施例的气雾生成装置100的构造可以参见图1所示，装置的外形整体大致被构造为纵长的形状，气雾生成装置100包括：
腔室，具有敞口40；在使用中，气溶胶生成制品1000能通过腔室的敞口40可移除地接收于腔室内；
加热器30，至少部分围绕或界定腔室布置；当气溶胶生成制品1000接收在腔室内时，由加热器30从外侧围绕气溶胶生成制品1000并进行加热，从而使气溶胶生成制品1000释放多种挥发性化合物，且这些挥发性化合物仅通过加热处理来形成；
电芯10，用于供电；更加优选地该电芯10是可充电的直流电芯10，并能通过与外部电源连接后进行充电；
电路板20，例如PCB板或FPC板上，布置有电路，用于在电芯10和加热器30之间引导电流。
在图1和图2所示的实施例中，加热器30被布置成是管状形状，并由加热器30的至少部分管状中空形成或界定用于接收气溶胶生成制品1000的腔室。当气溶胶生成制品1000接收于壳体10内时，加热器30至少部分围绕或包围气溶胶生成制品1000，并从气溶胶生成制品1000的外周进行加热。以及，当气溶胶生成制品1000接收于壳体10内时至少部分是容纳和保持于加热器30内的。
在一些实施例中，加热器30可以具有大约5.8mm～10mm毫米的内径尺寸d11。在一些实施例中，加热器30可以具有大约10毫米～15毫米的长度d12。在实施例中，加热器30的周向长度或周长大于加热器30沿轴向方向的长度d12。在一些实施例中，加热器30的轴向长度d12不超过15mm或者低于15mm；优选地，加热器30的轴向长度d12介于9～15mm。在一些具体的实施例中，加热器30可以具有7.6mm的内径d11；加热器30可以具有11mm的长度d12。
在图2和图3所示的实施例中，加热器30包括：
由导电陶瓷材料制备的管状加热体31；以及，
形成于加热体31外表面上的第一电极321和第二电极322。
在一些实施例中，加热体31是致密的。在一些具体的实施例中，加热体31的孔隙率低于5％；更加优选地，加热体31的孔隙率低于3％。
在一些实施例中，加热体31的管壁厚度介于0.3～2.0mm。在一些具体的实施例中，加热体31的管壁厚度为0.6mm。
在一些实施例中，由导电陶瓷材料制备的管状加热体31的制备是通过将导电陶瓷材料的原料于模具内注塑成型后，烧结固化形成。例如，制备过程可以包括：将导电陶瓷材料的原料与液体溶剂混合形成可注射的浆料；再将浆料注入模具的型腔内形成管状的生胚，脱模获取生胚后烧结固化即获得加热体31。
在一些实施例中，加热体31是由导电陶瓷材料独立地进行模制形成的。则在实施例中，由导电陶瓷材料制备的管状加热体31仅包括或具有单一的加热体，而非将不同材料的多个功能元件共同结合形成的复合加热体。例如复合加热体包括提供支撑的电绝缘衬底(例如电绝缘陶瓷或表面绝缘金属等)、印刷或沉积或包裹或贴装等结合于电绝缘衬底表面的电阻加热的轨迹或涂层或蚀刻网等形成的加热体。在一些实施例中，加热体31是或者仅包括导电陶瓷体。
在一些实施例中，加热体31的导热系数设计高于常规普通玻璃或陶瓷的导热系数；通常玻璃的导热系数大约为1W/m.k，通常陶瓷的导热系数小于20W/m.k或者更低是小于10W/m.k的。在实施例中，加热体31的导热系数大于20W/m.k；更加优选地，加热体31的介于20～50W/m.k。
在实施例中，加热体31的导热系数大于25W/m.k；在一些具体的实施例中，由导电陶瓷材料制备的加热体31的导热系数介于25～40W/m.k。或者在又一些具体的实施例中，加热体31的导热系数大约为30W/m.k。在实施例中，通过使加热体31的导热系数具有以上范围，则对于通过布置第一电极321和第二电极322在部分区域上形成焦耳热和加热中温场差异是有利的。
在一些实施例中，加热体31中相对提高的导热系数是增加作为陶瓷相且相对高导热系数的金属氧化物成分，例如氧化铝、氧化钛等，从而使加热体31达到以上导热系数。在一些实施例中，加热体31的相对提高的导热系数是在导电陶瓷材料中添加有提升导热系数的导电金属例如金、银、铜等，从而使加热体31达到以上导热系数。
在一些实施例中，由导电陶瓷材料制备的加热体31的电阻率介于1×10-4Ω·cm～1.3×10-1Ω·cm。在图2和图3的实施例中，当通过第一电极321和第二电极322在加热体31引导电流时，通过第一电极321和第二电极322测量加热体31的电阻值介于0.5～5Ω。在一些优选的实施例中，通过第一电极321和第二电极322测量加热体31的电阻值介于0.8～1.5Ω。在一个具体的实施例中，通过第一电极321和第二电极322测量加热体31的电阻值大约为1.0Ω。
在一些实施例中，电芯10具有大约3.7～4.5V的输出电压；则在使用中，电路板20通过第一电极321和第二电极322对加热体31供电时，加热体31的工作功率大约介于10～40W。
在一些实施例中，加热体31的导电陶瓷材料包括主体成分和掺杂成分。在一些实施例中，主体成分占导电陶瓷的质量百分比大于80％且小于等于98％；掺杂成分占导电陶瓷的质量百分比大于1％且小于等于20％。
在一些实施例中，主体成分包括第一金属氧化物，掺杂成分包括第二金属氧化物；第一金属氧化物中金属的化合价不同于第二金属氧化物中金属的化合价。在一些实施例中，第一金属氧化物中金属的化合价小于第二金属氧化物中金属的化合价；或者在一些实施例中，第一金属氧化物中金属的化合价大于第二金属氧化物中金属的化合价。在一些实施例中，第二金属氧化物中金属的化合价高于3价。
在一些实施例中，主体成分包括氧化锌；掺杂成分包括三氧化二铝、二氧化锆、二氧化钛或五氧化二铌中的至少一种。在一些实施例中，氧化锌占导电陶瓷的质量百分比介于94％～97％。在一些实施例中，掺杂成分包括三氧化二铝，三氧化二铝占导电陶瓷的质量百分比介于0.5％～5％。
在一些实施例中，主体成分包括二氧化钛；掺杂成分至少包括五氧化二铌。在一些实施例中，二氧化钛占导电陶瓷的质量百分比介于85％～95％；五氧化二铌占导电陶瓷的质量百分比介于5％～20％。
在一些实施例中，主体成分包括五氧化二钽；掺杂成分包括二氧化钛或二氧化锆的至少一种。
在一些实施例中，主体成分包括导电的金属硼化物或金属氮化物或金属碳化物中的至少一种；掺杂成分包括非导电的金属氧化物或金属氮化物中的至少一种。
在一些实施例中，主体成分包括硼化钛、氮化钛或碳化钛中的至少一种。在一些实施例中，掺杂成分包括二氧化硅、二氧化锆中的至少一种。
在一些实施例中，主体成分占导电陶瓷的质量百分比介于20％～80％。在一些实施例中，掺杂成分占导电陶瓷的质量百分比介于30％～80％。
在一些实施例中，加热体31的导电陶瓷材料还包括导电的电阻率/导热调节成分，以用于将导电陶瓷的电阻率或导热系数控制在目标范围。在一些实施例中，导电的电阻率/导热调节成分包括导电的金属碳化物、金属硼化物、碳粉或导电金属粉中的至少一种。在一些实施例中，金属碳化物包括碳化硅；和/或金属硼化物包括硼化钛。在一些实施例中，导电金属粉包括金粉、银粉或铜粉中的至少一种。
在一些实施例中，导电的电阻率/导热调节成分占导电陶瓷的质量百分比介于10％～50％。
在一些可选的实施例中，加热体31的导电陶瓷材料包括质量百分数为94～97％的氧化锌、0.8～5％的三氧化二铝、0～1％的二氧化钛、以及0～0.5的二氧化锆。
在一些可选的实施例中，加热体31的导电陶瓷材料包括质量百分数为85％～95％的二氧化钛、以及5％～20％的五氧化二铌。
在一些可选的实施例中，加热体31的导电陶瓷材料包括质量百分数为5～10％的硼化钛、80～90％的氧化锌、以及1～5％的三氧化二铝。
在一些可选的实施例中，加热体31的导电陶瓷材料包括质量百分数为50～80％的硼化钛、20～50％的碳化硅、以及0.1～2％的二氧化硅。
在一些可选的实施例中，加热体31的导电陶瓷材料包括质量百分数为40～70％的硼化钛、30～60％的二氧化锆、以及0.1～5％的二氧化硅。
在一些可选的实施例中，加热体31的导电陶瓷材料包括质量百分数为20～50％的硼化钛、30～50％的二氧化锆、以及10～30％的铜粉或银粉或金粉。
根据图2和图3所示，加热体31包括：
沿轴向方向相背的第一端310和第二端320；第一端310是朝向敞口40布置的；在使用中，气溶胶生成制品1000能从第一端310接收于加热体31内或从加热体31内移除；
沿轴向布置的第一部分311和第二部分312；其中，第一部分311靠近或界定第一端310，第二部分312靠近并界定第二端320。在实施例中，第一部分311和第二部分312是连续的；第一部分311和第二部分312之间是没有分隔的或分隔边界的。
根据图2和图3所示，第一电极321和第二电极322结合于加热体31的外表面上，并且沿加热体31的径向方向相背地布置。
在一些实施例中，第一电极321和/或第二电极322包括电极环、电极帽、电极片、轨道电极或电极涂层中的至少一种。在一些实施例中，第一电极321和/或第二电极322是由低电阻率的金属或合金制备的。例如，第一电极321和/或第二电极322包括金、银、铜或含有它们中至少一种的合金。在一些实施例中，第一电极321和/或第二电极322是通过将含有以上低电阻率的金属或合金的导电浆料印刷或喷涂或沉积等形成于加热体31的外表面后固化获得。例如，第一电极321和/或第二电极322是通过将导电银浆印刷于加热体31的外表面后固化获得。
根据图2和图3所示，第一电极321和/或第二电极322是靠近第一端310布置；以及，第一电极321和/或第二电极322是远离第二端320的。在一些实施例中，第一电极321和/或第二电极322位于加热体31的第一部分311、且避开第二部分312。第二部分312上没有用于在其上引导电流的电极。
在一些实施例中，第一电极321和/或第二电极322与第一端310具有第一间距d21。以及，第一间距d21小于第一电极321和/或第二电极322与第二端320的第二间距d23。在图2和图3中，第一电极321和/或第二电极322与第二端320的第二间距d23，大于等于加热体31的轴向长度的1/2。在一些实施例中，第一电极321和/或第二电极322具有沿加热器30的轴向方向的第一尺寸或高度尺寸d22。在一些实施例中，第一间距d21小于第一尺寸或高度尺寸d22。在一些实施例中，第一间距d21介于0.5～2.0mm；第一尺寸或高度尺寸d22介于1～4mm。在一些可选的实施例中，第一间距d21大约为1mm；第一尺寸或高度尺寸d22大约为2mm。
根据图2和图3所示，第一电极321和/或第二电极322具有沿加热器30的周向方向的第二尺寸或宽度尺寸d24。第二尺寸或宽度尺寸d24是大于第一尺寸或高度尺寸d22的。在一些可选的实施例中，第二尺寸或宽度尺寸d24大约介于5～11mm。
在实施例中，第一电极321和第二电极322分别通过焊接导电引线等，电连接至电路板20；从而在使用中，电路板20能可操作地将第一电极321和第二电极322分别与电芯10的正/负极连接导通，从而在加热体31上引导电流。
根据图3中所示，当通过第一电极321和第二电极322对加热体31供电时，在加热体31上形成从第一电极321流向第二电极322的电流i1。在工作中，电流i1基本是在加热体31的周向上的电流。在实施例中，电流i1主要是位于或形成于加热体31的第一部分311的，第二部分312基本上是没有电流的。
在一些实施例中，第一尺寸或高度尺寸d22小于加热体31的轴向长度的1/4，对于增大或扩大第一部分311和第二部分312的温差是有利的。
在使用中，当通过第一电极321和第二电极322对加热体31供电时，加热体31的第一部分311通过电阻焦耳热而发热。第二部分312自身基本不产生热量，而是如图3中箭头R1所示通过接收第一部分311传递的热量而发热。
在一些实施例中，电路板20上的电路被配置为按照预定的加热曲线控制对加热体31提供功率，从而使加热体31按照预定的加热曲线对气溶胶生成制品1000进行加热。例如申请人在中国专利CN112335940A等中提供了多种关于预定时间的加热曲线的内容细节，上述文献全文以参见的方式纳入本文。
在通过第一电极321和第二电极322对加热体31供电的加热过程中，第一部分311和第二部分312的温度变化情况包括：
第一时间阶段或预热阶段，使第一部分311从室温升高到预定温度；在该第一时间阶段中，由于第二部分312仅能通过接收第一部分311传递的热量而发热，则第一部分311的温度大于第二部分312的温度；
第二时间阶段或加热阶段，使第一部分311保持在预定的温度区间内进行加热；在该第二时间阶段中，由于加热体31具有上述提高的导热系数，第二部分312较快地接收传导的热量进而与第一部分311的温度基本是相同或相近的。
根据图2和图3中所示，第一电极321和第二电极322被布置成是梯形的形状，而非常规的圆形或方形的形状。在加热器30的轴向方向上，第一电极321和/或第二电极322的第二尺寸或宽度尺寸d24是变化的。例如在图2和图3中，第一电极321和/或第二电极322的第二尺寸或宽度尺寸d24，沿靠近第一端310的方向逐渐增大。第一电极321和/或第二电极322靠近第一端310的第一区段的宽度，大于靠近第二端320的第二区段的宽度。
在实施例中，第一电极321和第二电极322之间的间距是变化的，具体地它们之间的间距沿靠近第一端310的方向逐渐减小；从而使加热体31的第一部分311上的电流密度沿靠近第一端310的方向增大，对于在加热体31上形成温差是有利的。
例如图10中示出了一个实施例中对图2和图3中所示的12mm长的加热器30以25W的功率供电时，依次对加热体31在轴向上的4个温度采样点(A1点/B1点/C1点/D1点)在前11s的温度数据；其中，4个温度采样点相邻之间的间隔距离为2.5mm，其中，A1点靠近第一端310并与第一端310间隔2.0mm，D1点靠近第二端320并与第二端320间隔2.0mm。在前11s的升温过程中，靠近第一端310的A1点/B1点升温相对更快。
或者图4中示出了又一个实施例的加热器30a周向展开视角的示意图；在该实施例中，加热器30a包括：
在第一端310a和第二端320a之间延伸的管状的加热体31a；加热体31a包括沿轴向连续地布置的第一部分311a和第二部分312a；
第一电极321a和第二电极322a，形成或结合于加热体31a的外表面上，并且沿加热体31a的径向方向相背地布置；
第一电极321a和第二电极322a结合于第一部分311a上，相对是靠近第一端310a的；第一电极321a和第二电极322a通过焊接导电引线等方式电连接至电路板20，从而电路板20通过第一电极321a和第二电极322a在加热体31a的第一部分311a上引导电流，如图4中箭头R2所示。在工作中，第一部分311a通过电阻焦耳热而发热；第二部分312a主要是通过接收第一部分311a传递的热量而发热，如图4中箭头R2所示。
在该实施例中，第一电极321a和第二电极322a是阶梯形；在图4中，第一电极321a和第二电极322a包括宽度不同的两个区段；具体地，第一电极321a和/或第二电极322a靠近第一端310a的第一区段的宽度，大于远离第一端310a的第二区段的宽度；从而使加热体31a的第一部分311a上的电流密度在靠近第一端310a的一侧更大。
或者图5示出了又一个实施例的加热器30b的示意图；在该实施例中，加热器30b包括：
在第一端310b和第二端320b之间延伸的管状的加热体31b；加热体31b包括沿轴向连续地布置的第一部分311b和第二部分312b；
第一电极321b和第二电极322b，形成或结合于加热体31b的外表面上，并且沿加热体31b的径向方向相背地布置；
在该实施例中，第一电极321b和第二电极322b在加热体31b上具有更长的延伸尺寸；第一电极321b和第二电极322b从第一部分311b延伸至第二部分312b上。
在该实施例中，第一电极321b和/或第二电极322b与第一端310b之间具有第一间距d31，第一电极321b和/或第二电极322b与第二端320b之间具有第二间距d33；第一间距d31小于第二间距d33。例如在一些具体的实施例中，第一间距d31大约为1mm，第二间距d33大约介于2～4mm。
在该实施例中，第一电极321b和/或第二电极322b具有沿加热体31b的轴向延伸的第一尺寸或高度尺寸d32。在该实施例中，第一尺寸或高度尺寸d32大于加热体31b的轴向长度的1/2。例如在一些具体的实施例中，第一尺寸或高度尺寸d32大约为7～9mm。
在该实施例中，第一电极321b和/或第二电极322b是梯形的形状，并且具有变化的宽度尺寸，从而使加热体31b在轴向上具有差异的电流密度，从而在第一时间阶段中轴向上具有温差。或者在又一些变化的实施例中，第一电极321b和/或第二电极322b是阶梯形的形状；第一电极321b和/或第二电极322b包括位于第一部分311a上的第一区段、以及位于第二部分312a上的第二区段；第一区段和第二区段均是恒定的，以及第一区段的宽度大于第二区段的宽度。
或者图6中示出了又一个实施例的加热器30c的示意图；在该实施例中，第一电极321c和第二电极322c从加热体31c的第一端310c延伸至第二端320c；在该实施例中，通过第一电极321c和第二电极322c能同时在加热体31c的第一部分311c和第二部分312c上引导电流，使它们通过电阻焦耳热而发热。以及，第一电极321c和第二电极322c是梯形的形状，并具有变化的宽度；从而使第一部分311c的电流密度大于第二部分312c上的电流密度，从而在第一时间阶段升温更快。
图7示出了又一个实施例的加热器30d的示意图；在该实施例中，加热器30d包括：
在第一端310d和第二端320d之间延伸的管状的加热体31d；加热体31d包括沿轴向连续地布置的第一部分311d和第二部分312d；
第一电极321d和第二电极322d，形成或结合于加热体31d的外表面上，并且沿加热体31d的径向方向相背地布置。
在该实施例中，第一电极321d和第二电极322d位于第一部分311d，进而仅在第一部分311d上引导电流。
在该实施例中，加热体31d的外径是恒定的；第一部分311d和第二部分312d具有不同的内径。具体地，第一部分311d的管壁厚度和第二部分312d的管壁厚度是恒定的，且第一部分311d的管壁厚度大于第二部分312d的管壁厚度，从而使第二部分312d的内径大于第一部分311d的内径。当气溶胶生成制品1000被接收于加热体31d内被加热时，气溶胶生成制品1000的外表面是抵靠或结合于第一部分311d的内表面的，从而使第一部分311d能主要地通过接触导热的方式加热气溶胶生成制品1000；而第二部分312d的内表面与气溶胶生成制品1000的外表面是不接触的，并形成有缝隙或间隙d41，从而第二部分312d主要地通过陶瓷材料自身辐射热量或辐射红外的方式加热气溶胶生成制品1000，而非接触导热的方式进行加热。此类加热方式，加热体31d对气溶胶生成制品1000的不同部分以不同的方式进行加热，对于差异地或分层次地激发可挥发成分是有利的。在一些实施例中，缝隙或间隙d41介于0.25～1.5mm。或者，第一部分311d的内径，比第二部分312d内径大0.5～3.0mm。
例如图11中示出了一个实施例中对图7中所示的12mm长的加热器30d以25W的功率供电时，依次对加热体31d在轴向上的4个温度采样点(A2点/B2点/C2点/D2点)在前11s的温度数据；其中，4个温度采样点相邻之间的间隔距离为2.5mm，其中，A2点靠近第一端310a并与第一端310a间隔2.0mm，D2点靠近第二端320a并与第二端320a间隔2.0mm。从图11中可以看出，相比图10中内径恒定的加热器30，第二部分312d的管壁厚度更薄从而C2点和D2点快速导热使它们之间的温差有所缩小。
或者图8示出了又一个实施例的加热器30e的示意图；在该实施例中，加热器30e包括：
在第一端310e和第二端320e之间延伸的管状的加热体31e；加热体31e包括沿轴向连续地布置的第一部分311e和第二部分312e；
第一电极321e和第二电极322e，形成或结合于加热体31e的外表面上，并且沿加热体31e的径向方向相背地布置。在该实施例中，第一电极321e和第二电极322e位于第一部分311e，进而仅在第一部分311e上引导电流。
在该实施例中，加热体31e的外径是恒定的、内径是逐渐变化的。具体地，加热体31e的内径沿靠近第一端310e的方向逐渐减小，从而加热体31e的内表面是倾斜的。从而第一部分311e的内径小于第二部分312e的内径。当气溶胶生成制品1000被接收于加热体31e内被加热时，第一部分311e的部分通过接触导热、部分通过辐射的方式加热气溶胶生成制品1000。
图9示出了又一个实施例的加热器30f的示意图，在该实施例中，加热器30e包括：
在第一端310f和第二端320f之间延伸的管状的加热体31f；加热体31f包括沿轴向连续地布置的第一部分311f和第二部分312f；
第一电极321f和第二电极322f，形成或结合于加热体31f的外表面上，并且沿加热体31f的径向方向相背地布置。
在该实施例中，加热体31f上布置有至少一个或多个位于第一部分311f和第二部分312f之间的热障313f；热障313f用于减少第一部分311f的热量向第二部分312f的传递。进而在使用中，由于加热体31f具有相对高的导热系数，则第一部分311f上的温度大于第二部分312f上的温度，且第一部分311f和第二部分312f它们各自的温场基本是均匀或相同的。
在一些实施例中，热障313f可以是形成于加热体31f外表面上的凹槽或镂空等，以减少热量传递。
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的实施例，但并不限于本说明书所描述的实施例，进一步地，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (20)

  1. 一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；其特征在于，包括：
    腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
    加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；所述加热体包括靠近所述敞口的第一端、以及背离所述第一端的第二端；
    第一电极和第二电极，沿所述加热体的周向间隔地布置；所述第一电极和/或所述第二电极与所述第一端的第一间距，小于与所述第二端的第二间距；
    电芯，用于供电；
    电路，被布置成通过将所述第一电极和所述第二电极中的一个与所述电芯的正极连接、另一个与所述电芯的负极连接，进而在所述加热体上引导电流。
  2. 如权利要求1所述的气雾生成装置，其特征在于，所述加热体由导电陶瓷材料模制后烧结制备，或者所述加热体是或者仅包括导电陶瓷体。
  3. 如权利要求1或2所述的气雾生成装置，其特征在于，所述加热体的导热系数大于20W/m.k。
  4. 如权利要求3所述的气雾生成装置，其特征在于，所述加热体的导热系数介于25～40W/m.k。
  5. 如权利要求1或2所述的气雾生成装置，其特征在于，所述加热体被布置成是管状；
    所述加热体的周长大于所述加热体的轴向长度；和/或，所述加热体的轴向长度不超过15mm。
  6. 如权利要求1或2所述的气雾生成装置，其特征在于，所述第一间距介于0.5～2.0mm。
  7. 如权利要求1或2所述的气雾生成装置，其特征在于，所述第一电极和所述第二电极沿所述加热体的径向相背布置。
  8. 如权利要求2所述的气雾生成装置，其特征在于，当通过所述第一电极和所述第二电极在所述加热体上引导电流时，所述加热体的电阻值介于0.5～5Ω。
  9. 如权利要求1或2所述的气雾生成装置，其特征在于，所述第一电极和/或所述第二电极具有沿所述加热体的轴向方向的第一尺寸，以及沿所述加热体的周向方向的第二尺寸；
    所述第一尺寸小于所述第二尺寸。
  10. 如权利要求9所述的气雾生成装置，其特征在于，所述第一尺寸介于1～4mm；和/或，所述第二尺寸介于5～11mm。
  11. 如权利要求1或2所述的气雾生成装置，其特征在于，所述加热体包括：
    第一部分，靠近或界定所述第一端；第二部分，靠近或界定所述第二端；所述第一电极和/或所述第二电极布置于所述第一部分上，且避开所述第二部分；
    当通过所述第一电极和所述第二电极在所述加热体上引导电流时，所述第一部分能通过电阻焦耳热而发热，所述第二部分通过接收所述第一部分传递的热量而发热。
  12. 如权利要求1或2所述的气雾生成装置，其特征在于，所述第一电极和/或所述第二电极具有沿所述加热体的周向方向的第二尺寸；
    在所述加热体的轴向方向上，所述第二尺寸是变化的。
  13. 如权利要求1或2所述的气雾生成装置，其特征在于，所述第一电极和/或所述第二电极包括靠近所述第一端的第一区段、以及靠近所述第二端的第二区段；
    所述第一区段在所述加热体周向的尺寸，大于所述第二区段在所述加热体周向的尺寸。
  14. 如权利要求1或2所述的气雾生成装置，其特征在于，所述加热体包括：
    第一部分，靠近或界定所述第一端；第二部分，靠近或界定所述第二端；所述第一部分的内径小于所述第二部分的内径；
    当气溶胶生成制品被接收于所述腔室内时，所述第一部分的内表面接触和抵靠气溶胶生成制品的外表面，进而主要地通过接触导热的方式加热气溶胶生成制品；所述第二部分的内表面与气溶胶生成制品的外表面形成或界定有间隙，进而主要地通过辐射热量或辐射红外的方式加热气溶胶生成制品。
  15. 如权利要求14所述的气雾生成装置，其特征在于，所述第一部分的内径比所述第二部分的内径大0.5～3.0mm。
  16. 如权利要求1或2所述的气雾生成装置，其特征在于，所述加热体的内径沿靠近所述第一端的方向逐渐减小。
  17. 如权利要求1或2所述的气雾生成装置，其特征在于，所述加热体包括：
    第一部分，靠近或界定所述第一端；
    第二部分，靠近或界定所述第二端；
    至少一个或多个热障，形成于所述第一部分和所述第二部分之间，以用于减少所述第一部分的热量向所述第二部分的传递。
  18. 一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；其特征在于，包括：
    腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
    加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；所述加热体包括靠近所述敞口的第一端、以及背离所述第一端的第二端；
    第一电极和第二电极，沿所述加热体的周向间隔地布置，用于在所述加热体上引导电流；所述第一电极和/或所述第二电极包括靠近所述第一端的第一区段、以及靠近所述第二端的第二区段；所述第一区段在所述加热体周向的尺寸，大于所述第二区段在所述加热体周向的尺寸。
  19. 一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；其特征在于，包括：
    腔室，具有敞口；在使用中气溶胶生成制品能通过所述敞口至少部分地接收于所述腔室内或从所述腔室内移除；
    由导电陶瓷材料制备的加热体，围绕或界定所述腔室的至少一部分，并用于加热气溶胶生成制品；所述加热体上布置有间隔的第一电极和第二电极，用于在所述加热体上引导电流使所述加热体通过电阻焦耳热而发热；
    所述加热体包括靠近所述敞口的第一部分、以及背离所述敞口的第二部分；所述第一部分的内径小于所述第二部分的内径；
    当气溶胶生成制品被接收于所述腔室内时，所述第一部分的内表面接触和抵靠气溶胶生成制品的外表面，进而主要地通过接触导热的方式加热气溶胶生成制品；所述第二部分的内表面与气溶胶生成制品的外表面形成或界定有间隙，进而主要地通过辐射热量或辐射红外的方式加热气溶胶生成制品。
  20. 一种用于气雾生成装置的加热器，其特征在于，包括：
    相背的第一端和第二端；
    管状的加热体，从所述第一端延伸至所述第二端；
    第一电极和第二电极，沿所述加热体的周向间隔地布置，以用于在所述加热体的周向上引导电流；所述第一电极和/或所述第二电极与所述第一端的第一间距，小于与所述第二端的第二间距；
    所述第二间距大于等于所述加热体的轴向长度的1/2。
PCT/CN2025/094595 2024-05-14 2025-05-13 气雾生成装置及用于气雾生成装置的加热器 Pending WO2025237293A1 (zh)

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