WO2024103877A1 - 气溶胶产生装置及其发热结构 - Google Patents

气溶胶产生装置及其发热结构 Download PDF

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Publication number
WO2024103877A1
WO2024103877A1 PCT/CN2023/114110 CN2023114110W WO2024103877A1 WO 2024103877 A1 WO2024103877 A1 WO 2024103877A1 CN 2023114110 W CN2023114110 W CN 2023114110W WO 2024103877 A1 WO2024103877 A1 WO 2024103877A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
measuring unit
temperature measuring
segment
structure according
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.)
Ceased
Application number
PCT/CN2023/114110
Other languages
English (en)
French (fr)
Inventor
马磊
周宏明
李日红
杜贤武
张国
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 Smoore Technology Ltd
Smoore International Holdings Ltd
Original Assignee
Shenzhen Smoore Technology Ltd
Smoore International Holdings 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 Smoore Technology Ltd, Smoore International Holdings Ltd filed Critical Shenzhen Smoore Technology Ltd
Priority to KR1020257020046A priority Critical patent/KR20250115407A/ko
Priority to EP23890316.5A priority patent/EP4620335A4/en
Priority to JP2025523624A priority patent/JP2025535935A/ja
Publication of WO2024103877A1 publication Critical patent/WO2024103877A1/zh
Priority to US19/211,128 priority patent/US20250280881A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A24F40/50—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
    • A24F40/40—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
    • A24F40/20—Devices using solid 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
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • 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
    • A24F40/53—Monitoring, e.g. fault detection
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/007—Heaters using a particular layout for the resistive material or resistive elements using multiple electrically connected resistive elements or resistive zones
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/032—Heaters specially adapted for heating by radiation heating

Definitions

  • the invention relates to the field of heat-without-combustion atomization, and more particularly to an aerosol generating device and a heating structure thereof.
  • an aerosol generating device is an electronic device that heats but does not burn an aerosol-forming matrix (a solid matrix such as plant leaf products such as tobacco).
  • the aerosol-forming matrix will generally be atomized within 350°C.
  • the disadvantage of this heating method is that the heating element directly or indirectly transfers heat to the aerosol-forming matrix through solid materials, which requires that the working temperature of the heating element cannot be too high, otherwise it will cause the aerosol-forming matrix to overburn and affect the puffing taste of the aerosol generating device. Therefore, how to adapt to the working environment where the working temperature of the heating element is higher than 400°C, and when the heating element is working under conditions higher than 400°C, the detection and control of temperature are problems that technicians in this field urgently need to solve.
  • the technical problem to be solved by the present invention is to provide an improved aerosol generating device and a heating structure thereof.
  • a heating structure including a heating element that can radiate infrared light waves when powered on, a tube body for transmitting the infrared light waves, and a temperature measuring unit for measuring temperature
  • the heating element and the tube wall of the tube body are at least partially spaced apart
  • the heating element includes a heating part and a conductive part electrically connected to the heating part, one end of the temperature measuring unit is connected to one end of the heating part, and the other end of the temperature measuring unit is electrically connected to the conductive part.
  • the temperature measuring unit is at least partially composed of TCR material.
  • the temperature coefficient of the TCR material is greater than 300.
  • the heating portion includes a double helix segment arranged in a longitudinal direction, one end of the temperature measuring unit is connected to the double helix segment, and the other end of the temperature measuring unit is connected to the conductive portion.
  • the temperature measuring unit is at least partially located within the double helix segment.
  • the temperature measuring unit is located outside the double helix segment.
  • the heating portion is arranged in a longitudinal direction, including a linear first heating segment and a spiral second heating segment wrapped around the first heating segment and connected to one end of the first heating segment, one end of the temperature measuring unit is connected to the first heating segment, and the other end of the temperature measuring unit is connected to the conductive portion.
  • the temperature measuring unit is at least partially located within the spiral second heating section.
  • the temperature measuring unit is located outside the spiral second heating section.
  • the heating portion is formed by bending or winding a heating wire and includes at least one M-shaped or N-shaped segment.
  • the temperature measuring unit at least partially forms the M-shaped or N-shaped segment together with the heat generating portion.
  • the heating element is disposed on the inner side of the tube, and the heating element is spaced apart from the inner wall of the tube.
  • the tube body includes a first sleeve and a second sleeve sleeved around the outer periphery of the first sleeve;
  • a gap is left between the first sleeve and the second sleeve, and the gap forms a receiving cavity for receiving the heating element;
  • the heating element is arranged on the outer periphery of the first sleeve and is spaced apart from the outer wall of the first sleeve.
  • a heating cavity for heating an aerosol-forming substrate is formed inside the first sleeve.
  • a reflective layer for reflecting the infrared light waves is provided on the inner wall of the second sleeve.
  • a fixing seat is provided at the lower portion of the tube body, and the temperature measuring unit is arranged above the fixing seat or partially overlaps with the fixing seat.
  • the maximum operating temperature of the heating element is 500°C-1300°C.
  • the present invention also provides an aerosol generating device, comprising any of the heating structures described above.
  • the heating element of the present invention can radiate infrared light waves when powered on, and the infrared light waves can pass through the tube to the aerosol-forming matrix and heat it.
  • the maximum working temperature of the heating element reaches above 1000°C (the working temperature of the heating element of a traditional HNB generally does not exceed 400°C)
  • the aerosol-forming matrix will not be overburned, and the smoking taste can even be greatly improved.
  • the preheating time is greatly reduced, which greatly improves the consumer experience.
  • the temperature measuring unit is connected to the heating part and can quickly respond to the temperature change process of the heating part, so as to accurately measure the temperature of the heating element, thereby achieving accurate atomization of the aerosol-forming matrix.
  • FIG1 is a schematic diagram of the three-dimensional structure of an aerosol generating device in some embodiments of the present invention.
  • FIG2 is a schematic diagram of the three-dimensional structure of the heating structure of the aerosol generating device shown in FIG1 ;
  • FIG3 is a schematic diagram of the three-dimensional structure of the temperature measuring unit of the heating element shown in FIG2 ;
  • FIG4 is a schematic diagram of the three-dimensional structure of another temperature measuring unit of the heating element shown in FIG2 ;
  • FIG5 is a schematic diagram of the three-dimensional structure of another temperature measuring unit of the heating element shown in FIG2;
  • FIG6 is a schematic diagram of the three-dimensional structure of another temperature measuring unit of the heating element shown in FIG2;
  • FIG7 is a schematic diagram of a three-dimensional structure of a heating structure according to another embodiment of the present invention.
  • FIG8 is a schematic diagram of the three-dimensional structure of another temperature measuring unit of the heating element shown in FIG7;
  • FIG9 is a schematic diagram of the three-dimensional structure of another temperature measuring unit of the heating element shown in FIG7;
  • FIG. 10 is a schematic diagram of the three-dimensional structure of another temperature measuring unit of the heating element shown in FIG. 7 .
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality” is at least two segments, such as two segments, three segments, etc., unless otherwise clearly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two sections of components or the interaction relationship between two sections of components, unless otherwise clearly defined.
  • installed installed
  • connected connected
  • FIG1 shows an aerosol generating device 1 in some embodiments of the present invention and an aerosol-forming substrate 2 detachably inserted at one end of the aerosol generating device 1.
  • the aerosol generating device 1 may be in the shape of a square column in some embodiments to facilitate the user's hand holding, and is used to perform low-temperature baking and heating on the aerosol-forming substrate 2 inserted therein, so as to release the aerosol extract in the aerosol-forming substrate 2 without burning, and has good atomization stability and a good atomization taste.
  • the aerosol-forming substrate 2 may be in the shape of a cylinder in some embodiments, which may be a solid material in the shape of a silk strip or a sheet made of leaves and/or stems of plants, and aroma components may be further added to the solid material. It is understandable that the aerosol generating device 1 is not limited to a square column shape, and in some other embodiments, it may also be in other shapes such as a cylinder and an elliptical column.
  • the aerosol generating device 1 may include a heating structure 10 and a housing 20 for carrying the heating structure 10.
  • the heating structure 10 may be cylindrical, and the aerosol-forming substrate 2 may be detachably inserted therein, so as to heat and bake the aerosol-forming substrate 2 from the periphery.
  • the aerosol generating device 1 may also include a power supply component (not shown) disposed in the housing 20.
  • the heating structure 10 may be partially inserted into the aerosol-forming substrate 2, specifically, part of it may be inserted into the dielectric segment of the aerosol-forming substrate 2, and generate heat radiation in the energized state to heat the dielectric segment of the aerosol-forming substrate 2, so that it is atomized to generate an aerosol.
  • the heat radiation may be thermal infrared radiation.
  • the heating structure 10 has the advantages of easy assembly, simple structure, high atomization efficiency, strong stability, and long service life.
  • the power supply component is electrically connected to the heating structure 10 to supply power to the heating structure 10.
  • the heating structure 10 may include a tube 11 for infrared light waves to pass through, a heating element 12 that can radiate infrared light waves when powered on, a temperature measuring unit 13, and a fixing seat 14 in some embodiments.
  • the tube 11 is covered on at least part of the heating element 12, and can allow light waves to pass through the aerosol-forming matrix 2.
  • the tube 11 can allow infrared light waves to pass through, and then it is convenient for the heating element 12 to radiate infrared light waves to heat the aerosol-forming matrix 2.
  • the heating element 12 When powered on, the heating element 12 quickly heats up to 1000-1300°C in 1-3s, and the surface temperature of the tube 11 can be controlled below 350°C.
  • the atomization temperature of the entire aerosol-forming matrix 2 is controlled at 300-350°C, so that the aerosol-forming matrix 2 is precisely atomized mainly in the 2-5um band.
  • the heating element 12 may include a heating portion 121 that radiates infrared light waves in an energized state, and a conductive portion 122 that is arranged at one end of the heating portion 121 for accessing electric energy.
  • the temperature measuring unit 13 is connected to one end of the heating portion 121, and the conductive portion 122 is connected to the other end of the temperature measuring unit 13 and/or the heating portion 121.
  • the temperature measuring unit 13 is connected to the heating portion 121 to quickly respond to the temperature change process of the heating portion 121 of the heating element 12, so as to accurately measure the temperature of the heating element 12, thereby realizing accurate atomization of the aerosol-forming matrix 2.
  • the fixing seat 14 is arranged at the lower opening end of the tube body 11, and the temperature measuring unit 13 is arranged above the fixing seat 14 or partially overlaps with the fixing seat 14. And the conductive portion 122 of the heating element 12 passes through the fixing seat 14 to access electric energy.
  • the maximum operating temperature of the heating element 12 is 500°C-1300°C, which is much higher than the 400°C of the prior art, which solves the problems of easy burning and inconsistent taste in a high-temperature working environment, and greatly shortens the preheating waiting time.
  • the tube body 11 may be a quartz glass tube.
  • the tube body 11 is not limited to a quartz tube, and may be other window materials that can be used for light waves to pass through, such as infrared transparent glass, transparent ceramics, diamond, etc.
  • the tube body 11 may be a hollow tube in some embodiments.
  • the tube body 11 includes a tubular body 111 with a circular cross-section, and a pointed top structure 112 arranged at one end of the tubular body 111.
  • the cross-section of the tubular body 111 is not limited to a circular shape.
  • the tubular body 111 is a hollow structure with an opening at one end.
  • the tube body 11 can be mounted on the fixing seat 14, and specifically, the tube body 11 can be partially inserted in the fixing seat 14. Its opening can be located in the fixing seat 14.
  • the pointed top structure 112 is arranged at one end of the tubular body 111 away from the opening, and the pointed top structure 112 is arranged to facilitate at least part of the heating structure 10 to be inserted and pulled out of the aerosol forming matrix 2.
  • a first accommodating chamber 113 is formed inside the tube body 11, and the first accommodating chamber 113 is a cylindrical chamber and can be non-sealed.
  • the heating element 12 is installed therein, the first accommodating chamber 113 does not need to be evacuated or filled with inert gas.
  • the tube body 11 can also be sealed or evacuated.
  • the heating element 12 can also be arranged at intervals on the outer periphery of the tube body 11, and the inner side of the tube body 11 can form a second accommodating chamber for accommodating the aerosol-forming matrix 2.
  • the tube body 11 also includes a positioning portion, which is arranged at the opening of the tubular body 111 and can extend radially outward from the tubular body 111 to form a positioning flange for the installation and positioning of the tube body 11 and the fixing seat 14.
  • the positioning portion can be integrally formed with the tubular body 111.
  • the positioning portion can be detachably assembled with the tube body 11, such as sleeve connection, screw connection or clamp connection.
  • a gap is left between the inner wall of the tube body 11 and the heating element 12, and the gap can be filled with air or maintained in vacuum. By leaving a gap, there is no direct contact between the tube body 11 and the heating element 12.
  • the heating element 12 may be one and may be arranged longitudinally, and may be wound to form a heating portion 121 that is spiral in shape as a whole.
  • the heating element 12 may be cylindrical in shape as a whole, and may be wound to form a single helical structure, a double helical structure, an M-shaped structure, an N-shaped structure, or a structure of other shapes.
  • the heating element 12 is not limited to being one, and may be two, or more than two.
  • the shape of the heating element 12 is not limited to being cylindrical, and in some embodiments, the shape of the heating element 12 may be sheet-like.
  • the heating portion 121 can be placed in the tube body 11 and is arranged in a gap with the tube wall of the tube body 11 as a whole, and is used to radiate infrared light waves when powered on, and the infrared light waves can pass through the tube body 11 to the aerosol-forming matrix 2.
  • the heating portion 121 can also be partially arranged in a gap with the tube wall of the tube body 11.
  • the heating portion 121 can be in a longitudinal spiral shape.
  • the heating portion 121 is not limited to a spiral shape.
  • a conductive portion 122 is provided at one end of the heating portion 121, and the conductive portion 122 is connected to the heating portion 121, and can be led out from the opening of the tube body 11, and pass through the fixing seat 14 to be conductively connected to the power supply assembly.
  • the conductive portion 122 can be fixed to the heating portion 121 by welding to form an integral structure.
  • the heating portion 121 can be integrally formed with the conductive portion 122.
  • the conductive portion 122 can be two, and the two conductive portions 122 can be arranged at intervals, and are respectively connected to the two ends of the heating portion 121, and both extend to the same end, and pass through the opening at one end of the tube body 11 to be arranged in the tube body 11.
  • the conductive portion 122 can be a lead, which can be welded to the heating portion 121.
  • the conductive portion 122 is not limited to a lead, and can be other conductive structures.
  • the heating element 12 may include a heating substrate that generates heat when powered on, and an infrared radiation layer.
  • the heating substrate may generate heat when powered on.
  • the infrared radiation layer is disposed on the outer surface of the heating substrate to radiate the heat generated by the heating substrate.
  • the heating substrate and the infrared radiation layer are distributed in concentric circles on the cross section of the heating portion.
  • the heating substrate may be cylindrical as a whole, specifically, the heating substrate may be a heating wire.
  • the heating substrate may not be limited to a cylindrical shape, it may be a sheet, that is, the heating substrate may be a heating sheet.
  • the heating substrate includes a metal substrate with high-temperature oxidation resistance, and the metal substrate may be a metal wire.
  • the heating substrate may be a nickel-chromium alloy substrate (such as a nickel-chromium alloy wire), an iron-chromium-aluminum alloy substrate (such as an iron-chromium-aluminum alloy wire), or other metal materials with good high-temperature oxidation resistance, high stability, and not easy to deform.
  • the radial dimension of the heating substrate may be 0.15mm-0.8mm.
  • the heating element 12 further includes an anti-oxidation layer, which is formed between the heating substrate and the infrared radiation layer.
  • the anti-oxidation layer may be an oxidation film, and the heating substrate undergoes high-temperature heat treatment and forms a dense oxidation film on its own surface, and the oxidation film forms an anti-oxidation layer.
  • the anti-oxidation layer is not limited to the oxidation film formed by itself, and in some other embodiments, it may be an anti-oxidation coating applied to the outer surface of the heating substrate.
  • the thickness of the anti-oxidation layer can be selected to be 1um-150um. When the thickness of the anti-oxidation layer is less than 1um, the heating substrate is easily oxidized. When the thickness of the anti-oxidation layer is greater than 150um, it will affect the heat conduction between the heating substrate and the infrared radiation layer.
  • the infrared radiation layer may be an infrared layer.
  • the infrared layer may be an infrared layer forming matrix formed on the side of the anti-oxidation layer away from the heating matrix under high temperature heat treatment.
  • the infrared layer forming matrix may be silicon carbide, spinel or a composite matrix thereof.
  • the infrared radiation layer is not limited to an infrared layer.
  • the infrared radiation layer may be a composite infrared layer.
  • the infrared layer may be formed on the side of the anti-oxidation layer away from the heating matrix by dipping, spraying, brushing, etc.
  • the thickness of the infrared radiation layer may be 10um-300um.
  • the thickness of the infrared radiation layer is 10um-300um, its thermal radiation effect is better, and the atomization efficiency and atomization taste of the aerosol forming matrix 2 are better.
  • the thickness of the infrared radiation layer is not limited to 10um-300um.
  • the heating element 12 further includes a bonding layer disposed between the anti-oxidation layer and the infrared radiation layer, and the bonding layer can be used to prevent local breakdown of the heating substrate and further improve the bonding strength between the anti-oxidation layer and the infrared radiation layer.
  • the bonding body in the bonding layer can be glass powder, that is, the bonding layer can be a glass powder layer.
  • the heating portion 121 may be arranged in a longitudinal direction in some embodiments, and include a straight first heating segment 1211 and/or a spiral second heating segment 1212 wound around the first heating segment 1211 and connected to the first heating segment 1211.
  • the conductive portion 122 may include a first lead segment 1221 connected to the first heating segment 1211 and/or a second lead segment 1222 connected to the second heating segment 1212 in some embodiments.
  • the temperature measuring unit 13 can at least partially replace the first heating segment 1211 and/or the second heating segment 1212 and/or the first lead segment 1221/the second lead segment 1222.
  • the temperature measuring unit 13 is connected to the heating part 121, and the first heating segment 1211, the second heating segment 1212, the first lead segment 1221 and the second lead segment 1222 can be integrally formed or welded.
  • the temperature measuring unit 13 can quickly respond to the temperature change process of the heating part 121 of the heating element 12 to accurately measure the temperature of the heating part 121, so that the atomization temperature of the overall aerosol forming matrix 2 is controlled at 300-350°C, thereby achieving precise atomization of the aerosol forming matrix 2 mainly in the 2-5um band.
  • the heating portion 121 includes a second heating segment 1212 in a spiral shape
  • the conductive portion 122 may include a first lead segment 1221 and a second lead segment 1222 in some embodiments
  • the temperature measuring unit 13 may replace the first heating segment 1211 connected to the second heating segment 1212.
  • the heating portion 121 includes a second heating segment 1212 in a spiral shape
  • the conductive portion 122 includes a second lead segment 1222
  • the temperature measuring unit 13 may replace the first heating segment 1211 and the first lead segment 1221.
  • the heating portion 121 includes a first heating segment 1211 in a straight line and a second heating segment 1212 in a spiral shape that is wound around the first heating segment 1211 and connected to the first heating segment 1211, the conductive portion 122 includes a first lead segment 1221, and the temperature measuring unit 13 may replace all the second lead segments 1222.
  • the heating portion 121 includes a linear first heating segment 1211 and a spiral second heating segment 1212 wound outside the first heating segment 1211 and connected to the first heating segment 1211, the temperature measuring unit 13 partially replaces the second lead segment 1222, and the part of the second lead segment 1222 is connected to the second heating segment 1212, and the conductive portion 122 includes the first lead segment 1221 and another part of the second lead segment 1222. It can be understood that the position where the temperature measuring unit 13 is connected to the heating portion 121 can also be set in other ways as needed.
  • the heating portion 121 may further include a double helix segment (not shown) arranged longitudinally, one end of the temperature measuring unit 13 is connected to the double helix segment, and the other end of the temperature measuring unit 13 is connected to the conductive portion 122.
  • the conductive portion 122 includes a third lead segment (not shown) and a fourth lead segment (not shown) respectively connected to the double helix segment.
  • the temperature measuring unit 13 at least partially replaces the third heating segment.
  • the temperature measuring unit 13 may also at least partially replace the third lead segment and/or the fourth lead segment connected to the third heating segment. It can be understood that the position where the temperature measuring unit 13 is connected to the heating portion 121 can also be set as needed.
  • the heating portion 121 may include a plurality of strip-shaped or linear heating wires wound or bent to form an M-shaped segment or an N-shaped segment (not shown), and the conductive portion includes a fifth lead segment (not shown) and/or a sixth lead segment (not shown) respectively connected to the M-shaped segment or the N-shaped segment.
  • the temperature measuring unit 13 at least partially replaces the M-shaped segment or the N-shaped segment.
  • the temperature measuring unit 13 may also replace the fifth lead segment and/or the sixth lead segment connected to the M-shaped segment or the N-shaped segment. It can be understood that the position where the temperature measuring unit 13 is connected to the heating portion 121 can also be set as needed.
  • the temperature measuring unit 13 is at least partially made of TCR material.
  • the temperature coefficient of the TCR material is greater than 300, which can make the measurement data more accurate. It is understandable that the temperature coefficient of the TCR material can also be set to be less than 300, etc.
  • the TCR material can be in a strip shape in some embodiments. It is understandable that the TCR material is not limited to a strip shape, and it can also be in a sheet shape, a column shape, a spiral shape, etc.
  • the fixing base 14 may be made of ceramic insulation and PEEK high temperature resistant insulation materials, etc. It may include two fixing through holes 141 disposed on the fixing base 14, and the two fixing through holes 141 are used for inserting the two conductive parts 122.
  • the heating structure further includes a support rod, which is an insulating rod.
  • the support rod can partially penetrate the heating portion 121, is located at the center of the heating portion 121, and can be insulated from the heating portion 121, which can play a role in supporting the heating portion 121.
  • the heating portion 121 can be supported to ensure that the heating element 12 is not completely deformed by heat, thereby ensuring that the gap between the heating element 12 and the tube body 11 is uniform, thereby ensuring the consistency of the temperature field.
  • the support rod may not be provided, and the heating portion 121 may be supported by providing other structures.
  • FIG7 shows a heating structure 10a in a second embodiment of the present invention.
  • the heating structure 10a is not limited to being partially inserted into the aerosol-forming matrix to heat the aerosol-forming matrix.
  • the heating structure 10a can be sleeved on the periphery of the medium segment of the aerosol-forming matrix to heat the aerosol-forming matrix by circumferential heating.
  • the heating structure 10a may include a tube body 11a, a heating element 12a, and a temperature measuring unit 13a.
  • the heating element 12a and the tube wall of the tube body 11a are at least partially spaced apart.
  • the heating element 12a may include a heating portion 121a that radiates infrared light waves in an energized state, and a conductive portion 122a disposed at one end of the heating portion 121a for receiving electrical energy.
  • the tube body 11a may include a first sleeve 111a and a second sleeve 112a sleeved on the outer circumference of the first sleeve 111a; the first sleeve 111a is a hollow structure with two ends connected.
  • the first sleeve 111a may be cylindrical, and its inner diameter may be slightly larger than the outer diameter of the aerosol-forming matrix.
  • a gap is left between the first sleeve 111a and the second sleeve 112a, and the gap forms a housing cavity for accommodating the heating element 12a; the axial length of the first sleeve 111a may be greater than the axial length of the second sleeve 112a.
  • the second sleeve 112a may be sleeved on the outer circumference of the first sleeve 111a, the second sleeve 112a may be cylindrical, and the radial dimension of the second sleeve 112a may be greater than the radial dimension of the first sleeve 111a.
  • the heating element 12a is disposed around the outer circumference of the first sleeve 111a and is spaced apart from the outer wall of the second sleeve 112a, so that a certain temperature difference can be formed between the inner wall of the accommodating cavity and the heating element 12, thereby playing a heat insulation role.
  • a heating cavity for heating the aerosol-forming substrate is formed inside the first sleeve 111a.
  • the second sleeve 112a has a reflective layer inside, which is used to reflect the heat of the heating element 12 and radiate it to the aerosol-forming substrate to enhance the heating efficiency.
  • the first sleeve 111a and the second sleeve 112a are not limited to being cylindrical, and they can also be other shapes such as square cylinders and elliptical cylinders.
  • the second sleeve 112a may further include a fixing structure for fixing the heating element 12a.
  • the heating portion 121a may be a spiral fourth heating segment 1211a in some embodiments, and the conductive portion 122a includes a seventh lead segment 1221a and/or an eighth lead segment 1222a respectively connected to two opposite sides of the fourth heating segment 1211a.
  • the temperature measuring unit 13a at least partially replaces the seventh lead segment 1221a and/or the eighth lead segment 1222a connected to the heating portion 121a, and the temperature measuring unit 13a can quickly respond to the temperature change process of the heating portion 121a of the heating element 12a, so as to accurately measure the temperature of the heating element 12a, thereby achieving accurate atomization of the aerosol-forming matrix.
  • the temperature measuring unit 13a completely replaces the seventh lead segment 1221a, and the conductive portion 122a includes the eighth lead segment 1222a.
  • the temperature measuring unit 13a partially replaces the seventh lead segment 1221a connected to the heating portion 121a, and the conductive portion 122a includes the eighth lead segment 1222a.
  • the temperature measuring unit 13a partially replaces the seventh lead segment 1221a connected to the heating portion 121a and completely replaces the eighth lead segment 1222a, and the conductive portion 122a includes another part of the seventh lead segment 1221a. It can be understood that the position where the temperature measuring unit 13a is connected to the heating portion 121a can also be set as needed.

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Abstract

本发明涉及一种气溶胶产生装置及其发热结构，该发热结构包括在通电状态下可辐射红外光波的发热体、供所述红外光波透过的管体以及用于测温的测温单元，所述发热体和所述管体的管壁之间至少部分间隔设置，发热体包括发热部以及连接在发热部一端的导电部，所述测温单元的一端与所述发热部的一端相连，所述测温单元的另一端所述导电部相连。本发明的发热体在高温环境下不会导致气溶胶形成基质过烧，且可以极大提升抽吸口感；同时，预热时间大幅度降低，极大提升了消费者的体验感。测温单元与发热部连接能够快速反应发热部的温度变化过程，以精准地测量发热体的温度，进而实现对气溶胶形成基质的精准雾化。

Description

气溶胶产生装置及其发热结构 技术领域
本发明涉及加热不燃烧雾化领域，更具体地说，涉及一种气溶胶产生装置及其发热结构。
 背景技术
相关技术中，气溶胶产生装置是一种用于通过加热但不使气溶胶形成基质（固态基质如烟草等植物叶类制品）燃烧的方式的电子设备。一般地，气溶胶形成基质一般会在350℃以内雾化。这种加热方式的缺点是，发热体直接或通过固态材料间接将热量热传导气溶胶形成基质，这就要求发热体的工作温度不能过高，否则将引起气溶胶形成基质过烧而影响气溶胶产生装置的抽吸口感。因此，如何适应发热体工作温度高于400℃的工作环境，以及当发热体在高于400℃的条件下工作时，温度的检测和控制是本领域技术人员急需解决的问题。
 发明内容
本发明要解决的技术问题在于，提供一种改进的气溶胶产生装置及其发热结构。
本发明解决其技术问题所采用的技术方案如下：一种发热结构，包括在通电状态下可辐射红外光波的发热体、供所述红外光波透过的管体以及用于测温的测温单元，所述发热体和所述管体的管壁之间至少部分间隔设置，所述发热体包括发热部以及与发热部电连接的导电部，所述测温单元的一端与所述发热部的一端相连，所述测温单元的另一端与所述导电部电连接。
在一些实施例中，所述测温单元至少部分由TCR材料构成。
在一些实施例中，所述TCR材料的温度系数大于300。
在一些实施例中，所述发热部包括呈纵长设置的双螺旋段，所述测温单元的一端与所述双螺旋段连接，所述测温单元的另一端与所述导电部连接。
在一些实施例中，所述测温单元至少部分位于所述双螺旋段内。
在一些实施例中，所述测温单元位于所述双螺旋段外。
在一些实施例中，所述发热部呈纵长设置，包括直线状的第一发热段和缠绕于所述第一发热段外并与所述第一发热段一端连接的螺旋状的第二发热段，所述测温单元的一端与所述第一发热段相连，所述测温单元的另一端与所述导电部相连。
在一些实施例中，所述测温单元至少部分位于所述螺旋状的第二发热段内。
在一些实施例中，所述测温单元位于所述螺旋状的第二发热段外。
在一些实施例中，所述发热部由发热丝弯折或缠绕形成且包括至少一个M形或N形段。
在一些实施例中，所述测温单元至少部分与所述发热部一起形成所述M形或N形段。
在一些实施例中，所述发热体设在所述管体的内侧，所述发热体与所述管体的内壁之间间隔设置。
在一些实施例中，所述管体包括第一套管以及套设于所述第一套管外周的第二套管；
所述第一套管与所述第二套管之间留设有间隔，所述间隔形成容置所述发热体的容置腔；
所述发热体设于所述第一套管的外周并与所述第一套管的外壁之间间隔设置，所述第一套管内侧形成有用于加热气溶胶形成基质的加热腔。
在一些实施例中，所述第二套管的内壁上设有反射所述红外光波的反射层。
在一些实施例中，所述管体下部设有固定座，所述测温单元设置在所述固定座的上方或者与固定座部分重叠。
在一些实施例中，所述发热体的最高工作温度为500℃-1300℃。
在一些实施例中，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发热结构。
本发明的有益效果在于：本发明的发热体在通电状态下能够辐射红外光波，红外光波可透过管体至气溶胶形成基质并对其进行加热，在发热体最高工作温度达到1000℃以上的情况下（传统HNB的发热体工作温度一般不会超400℃），不会导致气溶胶形成基质过烧，甚至可以极大提升抽吸口感；同时，预热时间大幅度降低，极大提升了消费者的体验感。
测温单元与发热部连接能够快速反应发热部的温度变化过程，以精准地测量发热体的温度，进而实现对气溶胶形成基质的精准雾化。
 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是本发明一些实施例中气溶胶产生装置的立体结构示意图；
图2是图1所示气溶胶产生装置的发热结构的立体结构示意图；
图3是图2所示的发热体的测温单元的立体结构示意图；
图4是图2所示发热体的另一测温单元的立体结构示意图；
图5是图2所示发热体的又一测温单元的立体结构示意图；
图6是图2所示发热体的再一测温单元的立体结构示意图；
图7是本发明另一实施例的发热结构的立体结构示意图；
图8是图7所示发热体的另一测温单元的立体结构示意图；
图9是图7所示发热体的又一测温单元的立体结构示意图；
图10是图7所示发热体的再一测温单元的立体结构示意图。
 具体实施方式
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。
在本发明的描述中，需要理解的是，术语“纵向”、“轴向”、“长度”、“宽度”、 “上”、“下”、“顶”、“底”、“内”、“外”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”的含义是至少两段，例如两段、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，可以是两段元件内部的连通或两段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。
图1示出了本发明一些实施例中的气溶胶产生装置1以及可拆卸地插设于该气溶胶产生装置1一端的气溶胶形成基质2。该气溶胶产生装置1在一些实施例中可呈方柱状，以方便使用者手握，其用于对插接于其中的气溶胶形成基质2进行低温烘烤加热，以在不燃烧的状态下释放气溶胶形成基质2中的气溶胶提取物，且雾化稳定性好、雾化口感佳。该气溶胶形成基质2在一些实施例中可呈圆柱状，其可以为植物的叶和/或茎制成的丝条状或片状的固态材料，并且可在该固态材料中进一步添加香气成分。可以理解地，该气溶胶产生装置1并不局限于呈方形柱状，在其他一些实施例中，其也可以呈圆柱状、椭圆柱状等其他形状。
该气溶胶产生装置1在一些实施例中可包括发热结构10以及用于承载该发热结构10的壳体20。该发热结构10在一些实施例中可呈筒状，并可供气溶胶形成基质2可拆卸地插设于其中，以从外围对气溶胶形成基质2进行加热烘烤。该气溶胶产生装置1在一些实施例中还可包括设置于壳体20内的供电组件（未图示）。该发热结构10可部分插入气溶胶形成基质2中，具体地，其部分可插入气溶胶形成基质2的介质段，并在通电状态下产生热辐射对气溶胶形成基质2的介质段进行加热，使其雾化产生气溶胶。在本实施例中，该热辐射可以为热红外辐射。该发热结构10具有装配简便、结构简单，雾化效率高，稳定性强，且使用寿命高的优点。该供电组件与该发热结构10电性连接，以为该发热结构10供电。
一同参阅图2，发热结构10在一些实施例中可包括供红外光波透过的管体11、在通电状态下可辐射红外光波的发热体12、测温单元13以及固定座14。管体11罩设于至少部分发热体12上，且可供光波透至气溶胶形成基质2，具体地，在本实施例中，该管体11可供红外光波透过，进而可便于发热体12红外光波辐射出对气溶胶形成基质2进行加热。具体地，发热体12与管体11之间具有间隙，在通电状态下，发热体12在1-3s快速升温到1000-1300℃，而管体11的表面温度可控制在350℃以下，整体气溶胶形成基质2的雾化温度控制在300-350℃，实现气溶胶形成基质2主要在2-5um波段精准雾化。发热体12在一些实施例中可包括通电状态下辐射红外光波的发热部121、设置于发热部121一端用于接入电能的导电部122。该测温单元13的一端与发热部121的一端相连，导电部122与测温单元13和/或发热部121的另一端相连，测温单元13与发热部121相连接能够快速反应发热体12的发热部121的温度变化过程，以精准地测量发热体12的温度，进而实现对气溶胶形成基质2的精准雾化。该固定座14设置在管体11的下开口端，测温单元13设置在固定座14的上方或者与固定座14部分重叠。且发热体12的导电部122从固定座14穿出，以接入电能。本发热体12的最高工作温度在500℃-1300℃，远远高于现有技术的400℃，解决了高温工作环境下易烧焦、口感不一致等问题，且大大缩短了预热等待时间。
在一些实施例中，该管体11可以为石英玻璃管。当然，可以理解地，在其他一些实施例中，该管体11不限于为石英管，可以为其他可供光波透过的窗口材料，比如透红外玻璃、透明陶瓷、金刚石等。
管体11在一些实施例中可为中空的管状。具体地，管体11包括横截面呈圆形的管状体111、以及设置于该管状体111一端的尖顶结构112。当然，可以理解地，在其他一些实施例中，管状体111的横截面不限于呈圆形。该管状体111为一端设有开口的中空结构。该管体11可安装于该固定座14上，具体地，该管体11可部分插设于该固定座14上。其开口可位于该固定座14中。该尖顶结构112设置于该管状体111远离该开口的一端，通过设置该尖顶结构112便于至少部分该发热结构10插拔于气溶胶形成基质2中。在本实施例中，该管体11内侧形成有第一容置腔113，该第一容置腔113为柱状腔体，且可非密封设置，当该发热体12安装于其中时，该第一容置腔113可无需抽真空或者填充惰性气体。当然，为了进一步提升口感和发热体12的使用寿命，管体11也可密封或抽真空。可以理解地，在其他一些实施例中，该发热体12也可间隔设置该管体11的外周，该管体11的内侧可形成容置气溶胶形成基质2的第二容置腔。在本实施例中，该管体11还包括定位部，该定位部设置于该管状体111的开口处，可沿该管状体111的径向向外延伸，形成定位法兰，用于管体11与固定座14的安装定位。在本实施例中，该定位部可与管状体111一体成型。当然，可以理解地，在其他一些实施例中，该定位部可与管体11可拆卸装配，比如套接、螺接或者卡接。在本实施例中，该管体11的内壁与发热体12之间留设有间隙，该间隙可以供空气填充或保持真空。通过留设有间隙，进而可使得该管体11与发热体12之间无直接接触。
发热体12在一些实施例中可为一根且可纵长设置，且可通过绕制形成整体呈螺旋状的发热部121。具体地，该发热体12可整体呈圆柱状，且可绕制形成单螺旋结构、双螺旋结构、M形结构、N形结构或者其他形状的结构。当然，可以理解地，在其他一些实施例中，该发热体12不限于为一根，可以为两根，或者大于两根。该发热体12的形状不限于呈圆柱状，在一些实施例中，该发热体12的形状可呈片状。
在本实施例中，该发热部121可置于该管体11中，并整体与管体11的管壁间隙设置，用于在通电状态下辐射红外光波，该红外光波可经过管体11透至气溶胶形成基质2。当然，可以理解地，在其他一些实施例中，该发热部121也可部分与该管体11的管壁间隙设置。在本实施例中，该发热部121可以为纵长的螺旋状。当然，可以理解地，在其他一些实施例中，该发热部121不限于呈螺旋状。
在本实施例中，发热部121的一端设置有导电部122，该导电部122与发热部121连接，并可从管体11的开口引出，且从固定座14穿出与供电组件导电连接。在本实施例中，该导电部122可通过焊接与该发热部121固定形成一体结构。当然，可以理解地，在其他一些实施例中，该发热部121可与导电部122一体成型。在本实施例中，该导电部122可以为两个，该两个导电部122可间隔设置，并分别与该发热部121的两端连接，且均向同一端延伸，并从管体11一端的开口穿出管体11设置。在本实施例中，该导电部122可以为引线，其可与发热部121焊接。当然，可以理解地，在其他一些实施例中，导电部122不限于为引线，可以为其他导电结构。通过将导电部122设置于发热部121的一端，再从管体11引出，进而可使得便于整个发热结构10的装配，简化装配工艺，装配时，可将发热结构10安装于支撑座（未图示）上，然后与位于该支撑座中的导电件接触即可。
发热体12在一些实施例中可包括在通电状态下产生热量的发热基体、以及红外辐射层。该发热基体可在通电状态下产生热量。该红外辐射层设置于发热基体外表面，用于辐射发热基体产生的热量。在本实施例中，发热基体以及红外辐射层在发热部的横截面上呈同心圆分布。
在本实施例中，该发热基体可整体呈圆柱状，具体地，该发热基体可以为发热丝。当然，可以理解地，在其他一些实施例中，该发热基体可不限于呈圆柱状，其可以呈片状，也即该发热基体可以为发热片。该发热基体包括具有高温抗氧化性能的金属基体，该金属基体可以为金属丝。具体地，该发热基体可以为镍铬合金基体（比如镍铬合金丝）、铁铬铝合金基体（比如铁铬铝合金丝）等高温抗氧化性能好、稳定性高、不易变形等性能的金属类材料。在本实施例中，该发热基体的径向尺寸可以为0.15mm-0.8mm。
在本实施例中，发热体12还包括抗氧化层，该抗氧化层形成于该发热基体与红外辐射层之间。具体地，该抗氧化层可以为氧化膜，发热基体经过高温热处理并于其自身的表面生成一层致密的氧化膜，该氧化膜即形成抗氧化层。当然，可以理解地，在其他一些实施例中，该抗氧化层不限于包括自身形成的氧化膜，在其他一些实施例中，其可以为涂覆于该发热基体外表面的抗氧化涂层。通过形成该抗氧化层，可保障发热基体在空气环境中加热不被或者很少被氧化，提高了发热基体的稳定性，进而可无需对第一容置腔113进行抽真空、填充惰性气体或者还原性气体，也无需封堵开口，简化整个发热结构10的组装工艺，节约了制造成本。在本实施例中，该抗氧化层的厚度可以选择为1um-150um。当抗氧化层的厚度小于1um，该发热基体容易被氧化。当抗氧化层的厚度大于150um，会影响发热基体与红外辐射层之间的热量传导。
在本实施例中，该红外辐射层可以为红外层。该红外层可以为红外层形成基体在高温热处理下形成于抗氧化层远离该发热基体的一侧。在本实施例中，该红外层形成基体可以为碳化硅、尖晶石或其复合类基体。当然，可以理解地，在其他一些实施例中，该红外辐射层不限于为红外层。在其他一些实施例中，该红外辐射层可以为复合红外层。在本实施例中，该红外层可经过浸涂、喷涂、刷涂等方式进形成于抗氧化层远离该发热基体的一侧。该红外辐射层的厚度可以为10um-300um，当该红外辐射层的厚度在10um-300um，其热辐射效果较佳，则气溶胶形成基质2的雾化效率以及雾化口感较佳。当然，可以理解地，在其他一些实施例中，该红外辐射层的厚度不限于为10um-300um。
在一些实施例中，该发热体12还包括设置于该抗氧化层和红外辐射层之间的结合层，该结合层可用于防止发热基体局部击穿，进一步提高抗氧化层和红外辐射层的结合力。在一些实施例中，该结合层中的结合体可以为玻璃粉，也即该结合层可以为玻璃粉层。
一同参阅3至图6，发热部121在一些实施例中可呈纵长设置，其包括直线状的第一发热段1211和/或缠绕于第一发热段1211外并与第一发热段1211相连接的螺旋状第二发热段1212，导电部122在一些实施例中可包括与第一发热段1211连接的第一引线段1221和/或第二发热段1212连接的第二引线段1222。测温单元13在一些实施例中可至少部分替换第一发热段1211和/或第二发热段1212和/或第一引线段1221/第二引线段1222，测温单元13均与发热部121连接，且第一发热段1211、第二发热段1212、第一引线段1221以及第二引线段1222可一体成型，也可焊接连接，测温单元13能够快速反应发热体12的发热部121的温度变化过程，以精准地测量发热部121的温度，以使整体气溶胶形成基质2的雾化温度控制在300-350℃，进而实现气溶胶形成基质2主要在2-5um波段精准雾化。具体地，如图3所示，在一些实施例中，发热部121包括呈螺旋状的第二发热段1212，导电部122在一些实施例中可包括第一引线段1221以及第二引线段1222，测温单元13可以替换与第二发热段1212连接的第一发热段1211。如图4所示，发热部121包括呈螺旋状的第二发热段1212，导电部122包括第二引线段1222，测温单元13可以替换第一发热段1211和第一引线段1221。如图5所示，发热部121包括直线状的第一发热段1211和缠绕于第一发热段1211外并与第一发热段1211相连接的螺旋状第二发热段1212，导电部122包括第一引线段1221，测温单元13可全部替换第二引线段1222。如图6所示，在一些实施例中，发热部121包括直线状的第一发热段1211和缠绕于第一发热段1211外并与第一发热段1211相连接的螺旋状第二发热段1212，测温单元13部分替换第二引线段1222，且该部分第二引线段1222与第二发热段1212连接，导电部122包括第一引线段1221以及另一部分第二引线段1222。可以理解地，测温单元13与发热部121连接的位置还可根据需要进行其他设置。
在另外一些实施例中，发热部121还可包括纵长设置双螺旋段（未图示），测温单元13的一端与双螺旋段连接，测温单元13的另一端与导电部122连接。具体地，导电部122包括分别与双螺旋段相连接的第三引线段（未图示）和第四引线段（未图示）。具体地，测温单元13至少部分替换第三发热段。或者，测温单元13也可以至少部分替换与第三发热段相连接的第三引线段和/或第四引线段。可以理解地，测温单元13与发热部121连接的位置还可根据需要进行设置。
在再一实施例中，发热部121可包括多个由条状或线状的发热丝缠绕或弯折形成M形段或N形段（未图示），导电部包括分别与M形段或N形段连接的第五引线段（未图示）和/或第六引线段（未图示）。在一些实施例中，测温单元13至少部分替换M形段或N形段。或者，测温单元13也可以替换与M形段或N形段相连接的第五引线段和/或第六引线段。可以理解地，测温单元13与发热部121连接的位置还可根据需要进行设置。
在一些实施例中，测温单元13至少部分采用TCR材料制成。且优选地，TCR材料的温度系数大于300，其能够使测量数据更加准确。可以理解地，TCR材料的温度系数也可设置为小于300等。TCR材料在一些实施例中可呈条状，可以理解地，TCR材料并不局限于呈条状，其也可呈片状、柱状、螺旋状等。
固定座14在一些实施中可采用陶瓷绝缘以及PEEK耐高温绝缘等材料制成。其可包括设置在固定座14上的两个固定通孔141，该两个固定通孔141用于供两个导电部122插设。
在一些实施例中，该发热结构还包括支撑杆，该支撑杆为绝缘杆，该支撑杆可部分穿入发热部121中，位于该发热部121的中心，并可与发热部121绝缘设置，其可起到支撑发热部121的作用。通过设置该支撑杆，可支撑发热部121，确保发热体12受热不完全变形，进而确保发热体12与管体11之间的间隙均匀，从而保证温度场的一致。可以理解地，在其他一些实施例中，也可以不设置该支撑杆，而可以通过设置其他结构支撑发热部121。
图7示出了本发明第二实施例中的发热结构10a，其与该第一实施例的主要区别在于，该发热结构10a不限于部分插入该气溶胶形成基质中对气溶胶形成基质进行加热，在本实施例中，该发热结构10a可套设于气溶胶形成基质的介质段的外周，采用周圈加热的方式加热气溶胶形成基质，发热结构10a在一些实施例中可包括管体11a、发热体12a以及测温单元13a。发热体12a和管体11a的管壁之间至少部分间隔设置。发热体12a在一些实施例中可包括通电状态下辐射红外光波的发热部121a、设置于发热部121a一端用于接入电能的导电部122a。
管体11a在一些实施例中可包括第一套管111a以及套设于第一套管111a外周的第二套管112a；该第一套管111a为两端贯通的中空结构。该第一套管111a可以呈圆柱状，其内径可略大于气溶胶形成基质的外径。第一套管111a与第二套管112a之间留设有间隔，间隔形成容置发热体12a的容置腔；第一套管111a的轴向长度可大于第二套管112a的轴向长度。该第二套管112a可套设于第一套管111a的外周，该第二套管112a可呈圆柱状，该第二套管112a的径向尺寸可大于该第一套管111a的径向尺寸。在一些实施例中，发热体12a绕设于第一套管111a的外周并与第二套管112a的外壁之间间隔设置，进而可使得容置腔内壁与发热体12形成一定的温度差，起到隔热作用。第一套管111a内侧形成有用于加热气溶胶形成基质的加热腔。
在一些实施例中第二套管112a内侧具有一个反射层，该反射层用于反射发热体12的热量以及辐射至气溶胶形成基质，增强加热能效。可以理解地，第一套管111a和第二套管112a不局限于呈圆筒状，其也可呈方筒状、椭圆筒状等其他形状。
第二套管112a在一些实施例中还可包括固定结构，该固定结构用于固定发热体12a。
一同参阅图8至图10，发热部121a在一些实施例中可呈螺旋状的第四发热段1211a，导电部122a包括分别连接在第四发热段1211a两相对侧的第七引线段1221a和/或第八引线段1222a。测温单元13a至少部分替换与发热部121a连接的第七引线段1221a和/或第八引线段1222a，该测温单元13a能够快速反应发热体12a的发热部121a的温度变化过程，以精准地测量发热体12a的温度，进而实现对气溶胶形成基质的精准雾化。具体地，如图8所示，在一些实施例中，测温单元13a全部替换第七引线段1221a，导电部122a包括第八引线段1222a。如图9所示，在一些实施例中，测温单元13a部分替换与发热部121a连接的第七引线段1221a，导电部122a包括第八引线段1222a。如图10所示，测温单元13a部分替换与发热部121a连接的第七引线段1221a以及全部替换第八引线段1222a，导电部122a包括另一部分的第七引线段1221a，可以理解地，测温单元13a与发热部121a连接的位置还可根据需要进行设置。
可以理解的，以上实施例仅表达了本发明的优选实施方式，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. 一种发热结构，其特征在于，包括在通电状态下可辐射红外光波的发热体、供所述红外光波透过的管体以及用于测温的测温单元，所述发热体和所述管体的管壁之间至少部分间隔设置，所述发热体包括发热部以及与发热部电连接的导电部，所述测温单元的一端与所述发热部的一端相连，所述测温单元的另一端与所述导电部电连接。
  2. 根据权利要求1所述的发热结构，其特征在于，所述测温单元至少部分由TCR材料构成。
  3. 根据权利要求2所述的发热结构，其特征在于，所述TCR材料的温度系数大于300。
  4. 根据权利要求2所述的发热结构，其特征在于，所述发热部包括呈纵长设置的双螺旋段，所述测温单元的一端与所述双螺旋段连接，所述测温单元的另一端与所述导电部连接。
  5. 根据权利要求4所述的发热结构，其特征在于，所述测温单元至少部分位于所述双螺旋段内。
  6. 根据权利要求4所述的发热结构，其特征在于，所述测温单元位于所述双螺旋段外。
  7. 根据权利要求2所述的发热结构，其特征在于，所述发热部呈纵长设置，包括直线状的第一发热段和缠绕于所述第一发热段外并与所述第一发热段一端连接的螺旋状的第二发热段，所述测温单元的一端与所述第一发热段相连，所述测温单元的另一端与所述导电部相连。
  8. 根据权利要求7所述的发热结构，其特征在于，所述测温单元至少部分位于所述螺旋状的第二发热段内。
  9. 根据权利要求7所述的发热结构，其特征在于，所述测温单元位于所述螺旋状的第二发热段外。
  10. 根据权利要求2所述的发热结构，其特征在于，所述发热部由发热丝弯折或缠绕形成且包括至少一个M形或N形段。
  11. 根据权利要求10所述的发热结构，其特征在于，所述测温单元至少部分与所述发热部一起形成所述M形或N形段。
  12. 根据权利要求1所述的发热结构，其特征在于，所述发热体设在所述管体的内侧，所述发热体与所述管体的内壁之间间隔设置。
  13. 根据权利要求1所述的发热结构，其特征在于，所述管体包括第一套管以及套设于所述第一套管外周的第二套管；
    所述第一套管与所述第二套管之间留设有间隔，所述间隔形成容置所述发热体的容置腔；
    所述发热体设于所述第一套管的外周并与所述第一套管的外壁之间间隔设置，所述第一套管内侧形成有用于加热气溶胶形成基质的加热腔。
  14. 根据权利要求13所述的发热结构，其特征在于，所述第二套管的内壁上设有反射所述红外光波的反射层。
  15. 根据权利要求1所述的发热结构，其特征在于，所述管体下部设有固定座，所述测温单元设置在所述固定座的上方或者与固定座部分重叠。
  16. 根据权利要求1所述的发热结构，其特征在于，所述发热体的最高工作温度为500℃-1300℃。
  17. 一种气溶胶产生装置，其特征在于，包括权利要求1至16任一项所述的发热结构。
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