US20230337744A1 - Heating body and preparation method therefor, vaporizer, and electronic device - Google Patents

Heating body and preparation method therefor, vaporizer, and electronic device Download PDF

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Publication number
US20230337744A1
US20230337744A1 US18/342,014 US202318342014A US2023337744A1 US 20230337744 A1 US20230337744 A1 US 20230337744A1 US 202318342014 A US202318342014 A US 202318342014A US 2023337744 A1 US2023337744 A1 US 2023337744A1
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United States
Prior art keywords
heating
substrate
preheating
preheating member
heating body
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US18/342,014
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English (en)
Inventor
Hongming Zhou
Wei Zhang
Rihong LI
Wangsheng LIU
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Jiangmen Moore Technology Ltd
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Jiangmen Moore Technology Ltd
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Assigned to JIANGMEN MOORE TECHNOLOGY., LTD reassignment JIANGMEN MOORE TECHNOLOGY., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LI, RIHONG, LIU, WANGSHENG, ZHANG, WEI, ZHOU, HONGMING
Publication of US20230337744A1 publication Critical patent/US20230337744A1/en
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    • 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
    • A24F40/10—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
    • A24F40/44—Wicks
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/70—Manufacture
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • This application relates to the field of vaporizer technologies, and in particular, to a heating body and a preparation method therefor, a vaporizer, and an electronic device.
  • An electronic vaporizer mainly includes a vaporizer and a battery.
  • the vaporizer is an important component of the electronic vaporizer, which is configured to vaporize a vaporization medium for inhalation.
  • a heating body is a core component of the vaporizer that performs a vaporization function, which is mainly formed by pre-embedding a heating wire or screen printing a heating film on a ceramic substrate.
  • the heating body in which the heating wire is pre-embedded has advantages such as a simple structure, high vaporization efficiency, and a uniform temperature field.
  • the heating body on which the heating film is screen printed has advantages such as a large heating area, being capable of implementing surface vaporization, and high thermal efficiency.
  • the two types of heating bodies are prone to problems such as slow formation of an aerosol, and generation of a burnt flavor, miscellaneous air, or the like due to dry heating of the heating body, affecting a user experience.
  • the present invention provides a heating body, comprising: a porous ceramic body comprising a preheating member, the preheating member comprising a porous infrared ceramic structure; and a heating member located on the porous ceramic body, the heating member being configured to provide heat for the preheating member and to vaporize preheated liquid.
  • FIG. 1 is a schematic structural diagram of a heating body according to an embodiment.
  • FIG. 2 is an exploded view of the heating body shown in FIG. 1 .
  • FIG. 3 is a cross-sectional view of the heating body shown in FIG. 1 .
  • FIG. 4 is a flowchart of a method for preparing a heating body according to an embodiment.
  • the present invention provides a heating body and a preparation method therefor, a vaporizer, and an electronic device.
  • the present invention provides a heating body, including:
  • a porous ceramic body including a preheating member configured to preheat liquid, where the preheating member is a porous infrared ceramic structure;
  • heating member located on the porous ceramic body, and is configured to provide heat for the preheating member and vaporize preheated liquid.
  • a porous infrared ceramic structure is used as a preheating member.
  • the preheating member preheats liquid by using heat provided by the heating member to radiate far infrared rays, thereby reducing viscosity of the liquid and improving fluidity of the liquid in the porous ceramic body.
  • the to-be-vaporized liquid may reach the heating member more quickly and be vaporized, thereby improving a problem that when a vaporization medium is vaporized, an aerosol is prone to slow formation.
  • the fluidity of the to-be-vaporized liquid in the porous ceramic body is improved, the to-be-vaporized liquid may reach the heating member more quickly, and a problem that the heating body is prone to dry heating is also improved.
  • the porous ceramic body further includes a substrate, the preheating member is located on the substrate, the substrate is a porous ceramic structure, and the heating member is completely located in the preheating member and is close to the substrate or is located at a junction of the substrate and the preheating member.
  • the substrate is a hollow porous ceramic structure
  • the preheating member is a hollow porous infrared ceramic structure
  • the substrate and the preheating member are nested with each other.
  • the preheating member is sleeved on the substrate, and the heating member is spirally distributed on the substrate.
  • the heating member includes a heating portion and an infrared heating layer located on the heating portion.
  • a thickness of the infrared heating layer ranges from 20 ⁇ m to 500 ⁇ m.
  • the substrate is in a shape of a hollow cylinder
  • the preheating member is in a shape of a hollow cylinder
  • the preheating member is sleeved on the substrate
  • an inner diameter of the substrate ranges from 5 mm to 3 mm
  • an outer diameter of the preheating member ranges from 2.5 mm to 9 mm.
  • a porosity of the preheating member ranges from 30% to 80%.
  • a median pore size of the preheating member ranges from 10 ⁇ m to 100 ⁇ m. In an embodiment, a radiation wavelength of the preheating member ranges from 5 m to 20 ⁇ m.
  • a preheating temperature of the preheating member ranges from 40° C. to 90° C. In an embodiment, a resistance value of the heating member ranges from 0.5 ⁇ to 5 ⁇ .
  • a porosity of the substrate ranges from 30% to 80%.
  • a median pore size of the substrate ranges from 10 ⁇ m to 100 ⁇ m.
  • a method for preparing the heating body including:
  • a vaporizer including:
  • a liquid storage cavity configured to store liquid
  • a heating body configured to absorb liquid in the liquid storage cavity and vaporize the liquid, where the heating body is the foregoing heating body.
  • An electronic device including a power supply and the vaporizer, where the power supply is electrically connected to the vaporizer to supply power to the vaporizer.
  • a component when a component is expressed as “being fixed to” another component, the component may be directly on the another component, or one or more intermediate components may exist between the component and the another component.
  • the component When one component is expressed as “being connected to” another component, the component may be directly connected to the another component, or one or more intermediate components may exist between the component and the another component.
  • Orientation or position relationships indicated by terms such as “vertical”, “horizontal”, “left”, “right”, “upper”, “lower”, “inner”, “outer”, and “bottom” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease of description, rather than indicating or implying that the mentioned apparatus or component needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as a limitation to this application.
  • terms “first” and “second” are only used to describe the objective and cannot be understood as indicating or implying relative importance.
  • the vaporizer includes a liquid storage cavity and a heating body 10 .
  • the liquid storage cavity is configured to store liquid, such as a vaporization medium, and the heating body 10 is configured to absorb liquid in the liquid storage cavity and vaporize the liquid.
  • the liquid storage cavity has a liquid outlet, and the heating body 10 is close to the liquid outlet. The liquid in the liquid storage cavity flows out from the liquid outlet and enters the heating body 10 , so as to be vaporized.
  • the vaporizer is an electronic vaporizer.
  • the heating body 10 includes a porous ceramic body 110 and a heating member 120 located on the porous ceramic body 110 .
  • the porous ceramic body 110 includes a substrate 111 and a preheating member 112 located on the substrate 111 .
  • the porous ceramic body 110 has a liquid inlet surface 113 . The liquid in the liquid storage cavity flows out through the liquid outlet and enters the porous ceramic body 110 from the liquid inlet surface 113 .
  • the substrate 111 is a porous ceramic structure and has a liquid guiding function. In some other embodiments, the substrate 111 is a hollow porous ceramic structure. In the embodiment shown in the figure, the substrate 111 is in a shape of a hollow cylinder. Certainly, in another embodiment, a shape of the substrate 111 is not limited to the hollow cylinder, and may further be another hollow structure.
  • a porosity of the substrate 111 ranges from 30% to 80%, and a median pore size of a pore of the substrate 111 ranges from 10 ⁇ m to 100 ⁇ m.
  • the porosity of the substrate 111 and a pore size of the pore are set as described above, which is convenient for the substrate 111 to absorb the liquid.
  • the porosity of the substrate 111 is 30%, 40%, 50%, 60%, 70%, or 80%.
  • the median pore size of the pore of the substrate 111 is 10 ⁇ m, 20 ⁇ m, 30 ⁇ m, 40 ⁇ m, 50 ⁇ m, 60 ⁇ m, 70 ⁇ m, 80 am, 90 am, or 100 am.
  • a porosity of the substrate 111 ranges from 40% to 70%, and a median pore size of a pore of the substrate 111 ranges from 10 ⁇ m to 80 am. It may be understood that, in other implementations, the porosity of the substrate 111 and the pore size of the pore are not limited to the above, and may be adjusted according to actual needs.
  • the preheating member 112 is close to the liquid outlet and is located on the substrate 111 .
  • the preheating member 112 is a porous infrared ceramic structure and has a function of guiding liquid and radiating infrared rays.
  • the preheating member 112 has a liquid inlet surface 113 , and the liquid enters the preheating member 112 through the liquid inlet surface 113 of the preheating member 112 after flowing out from the liquid storage cavity.
  • the liquid is preheated by the infrared rays radiated by the preheating member 112 , so that viscosity is reduced and fluidity is improved. In this way, when the heating body 10 vaporizes the vaporization medium, a case of slow formation of an aerosol and dry heating due to the poor fluidity of the vaporization medium in the porous ceramic body 110 is not prone to occur.
  • both the preheating member 112 and the substrate 111 are hollow structures, and the preheating member 112 is sleeved on the substrate 111 .
  • an outer circumferential surface of the preheating member 112 is the liquid inlet surface 113 .
  • the liquid flows out from the liquid storage cavity, enters the preheating member 112 through the outer circumferential surface of the preheating member 112 , and is vaporized into an aerosol after being preheated by the preheating member 112 and is heated by the heating member 120 , and is discharged from an inner circumferential surface of the substrate 111 .
  • the preheating member 112 may also be nested in the substrate 111 . That is, the substrate 111 is sleeved on the preheating member 112 . In this case, the preheating member 112 is accommodated in a hollow portion of the substrate 111 , an inner circumferential surface of the preheating member 112 is the liquid inlet surface 113 . The liquid flows out from the liquid storage cavity, enters the preheating member 112 through the inner circumferential surface of the preheating member 112 , and is vaporized into an aerosol after being preheated by the preheating member 112 and is heated by the heating member 120 , and is discharged from the outer circumferential surface of the substrate 111 .
  • the preheating member 112 is in a shape of a hollow cylinder.
  • the substrate 111 is in a shape of a hollow cylinder
  • the preheating member 112 is in a shape of a hollow cylinder
  • the preheating member 112 is sleeved on the substrate 111
  • an inner diameter of the substrate 111 ranges from 1.5 mm to 3 mm
  • an outer diameter of the preheating member ranges from 2.5 mm to 9 mm.
  • a size of the substrate 111 is not limited to the above, and a size of the preheating member 112 is not limited to the above, and may further be adjusted according to an actual situation, provided that the shape and size of the preheating member 112 may match that of the substrate 111 and the liquid outlet.
  • the preheating member 112 may be a non-hollow structure.
  • the preheating member 112 is the hollow structure.
  • the preheating member 112 is located on one side of a surface of the substrate 111 , and the to-be-vaporized liquid is vaporized after being preheated by the preheating member 112 , and is then discharged from the other side of the substrate 111 .
  • the preheating member 112 may be the non-hollow structure. In this case, the preheating member 112 may be located on the substrate 111 in a stacking manner.
  • a porosity of the preheating member 112 ranges from 30% to 80%, and a median pore size of a pore of the preheating member 112 ranges from 10 ⁇ m to 100 ⁇ m.
  • the porosity of the preheating member 112 and a pore size of the pore are set as described above, which is convenient for the substrate 111 to absorb the liquid.
  • the porosity of the preheating member 112 is 30%, 40%, 50%, 60%, 70%, or 80%.
  • the median pore size of the pore of the preheating member 112 is 10 ⁇ m, 20 ⁇ m, 30 ⁇ m, 40 ⁇ m, 50 ⁇ m, 60 ⁇ m, 70 ⁇ m, 80 am, 90 am, or 100 ⁇ m.
  • a porosity of the preheating member 112 ranges from 40% to 70%
  • a median pore size of a pore of the preheating member 112 ranges from 20 ⁇ m to 80 ⁇ m. It may be understood that, in other implementations, the porosity of the preheating member 112 and the pore size of the pore are not limited to the above, and may be adjusted according to actual needs.
  • a wavelength radiated from the preheating member 112 may be selected according to a heated substance.
  • the heated substance is an oil vaporization medium
  • a radiation wavelength of the preheating member 112 ranges from 5 ⁇ m to 20 ⁇ m.
  • the radiation wavelength of the preheating member 112 is set to range from 5 ⁇ m to 20 ⁇ m, effective components (such as essence, glycerin, nicotine, or the like) in the oil vaporization medium may be heated precisely, thereby implementing precise vaporization, and increasing an effective vaporization concentration of the effective components.
  • the radiation wavelength of the preheating member 112 is not limited to the above, and may further be other radiation wavelengths, provided that the radiation wavelength of the preheating member 112 may match the absorption wavelength of the heated object.
  • the preheating member 112 is a porous infrared ceramic structure at a room temperature.
  • the room temperature ranges from 25° C. to 150° C.
  • a preheating temperature of the preheating member 112 ranges from 40° C. to 90° C.
  • the preheating temperature refers to a temperature that the liquid preheated by the preheating member 112 may reach.
  • the temperature is suitable for preheating an oil vaporization medium of an electronic vaporizer. Certainly, when the vaporized liquid is not the oil vaporization medium but other liquid, the preheating temperature of the preheating member 112 may be adjusted according to liquid that specifically needs to be vaporized.
  • the heating member 120 is configured to provide heat for the preheating member 112 and vaporize preheated liquid. A part of heat released by the heating member 120 directly heats the liquid to cause the liquid to be vaporized, and the other part is conducted to the preheating member 112 to cause the preheating member 112 to absorb the heat and radiate infrared rays.
  • the heating member 120 is located in the porous ceramic body 110 and is configured to generate heat. In the embodiment shown in the figure, the heating member 120 is located at a junction between the substrate 111 and the preheating member 112 . The heating member 120 is arranged at the junction between the substrate 111 and the preheating member 112 , so that the heat generated by the heating member 120 is fully used, and preheating and vaporization are simultaneously satisfied.
  • the first groove 114 and the second groove 115 form a heating cavity
  • the heating member 120 is accommodated in the heating cavity.
  • the heating member 120 may be completely embedded in the preheating member 112 , and may also be completely embedded in the substrate 111 .
  • the heating member 120 is completely located in the preheating member 112 and is away from the liquid outlet; or the heating member 120 is completely located in the substrate 111 and is close to the preheating member 112 .
  • the heating member 120 is spirally distributed on the substrate 111 .
  • the shape of the heating member 120 is not limited to a shape of a spiral, and may further be another shape.
  • the heating member 120 includes a heating portion 121 .
  • the heating portion 121 is the heating wire.
  • the heating portion 121 is a piece of heating wire (that is, monofilament).
  • a resistance value of the heating portion 121 ranges from 0.5 ⁇ to 1.5 ⁇ . In another embodiment, a resistance value of the heating portion 121 ranges from 0.8 ⁇ to 1.3 ⁇ .
  • the heating member 120 further includes an infrared heating layer on the heating portion 121 .
  • the infrared heating layer is arranged on the heating portion 121 , to cause the heat utilization of the heating portion 121 to be higher. In this way, the preheating member 112 receives more heat that are more uniform, and preheating is faster.
  • a thickness of the infrared heating layer ranges from 20 ⁇ m to 500 ⁇ m. In another embodiment, a thickness of the infrared heating layer ranges from 20 ⁇ m to 80 km.
  • the substrate 111 may be omitted.
  • the heating member 120 may be located in the preheating member 112 and be away from the liquid outlet, so that the liquid is first preheated and then vaporized. In this case, the heating member 120 transfers heat energy to the preheating member 112 and causes the preheating member 112 to radiate heat energy to preheat the liquid. The preheated liquid flows through the heating member 120 and is vaporized, thereby releasing the aerosol.
  • the heating member 120 may also be located on an outer surface of the preheating member 112 , provided that the heating member 120 may provide heat for the preheating member 112 to preheat the vaporization medium and vaporize the vaporization medium.
  • the preheating member 112 is a non-hollow structure, a side of the preheating member 112 is close to the liquid outlet, and the heating member 120 is located on a surface of the preheating member 112 and is away from a side of the liquid outlet.
  • the liquid flowing out from the liquid outlet enters the preheating member 112 at a position close to the liquid outlet, is first preheated by the preheating member 112 , and is then vaporized by the heating member 120 on the surface of the preheating member 112 , and is released.
  • the preheating member 112 is a hollow structure, and the heating member 120 is located on the outer circumferential surface of the preheating member 112 .
  • the liquid after flowing out from the liquid outlet, the liquid enters the preheating member 112 through the inner circumferential surface of the preheating member 112 , and is first preheated by the preheating member 112 and is then heated by the heating member, thereby releasing the aerosol from the outer circumferential surface of the preheating member 112 .
  • the heating member 120 may further be located on the surface of the porous ceramic body 110 .
  • the heating member 120 is located on the outer surface of the preheating member 112 .
  • the heating body 10 further includes a connecting member 130 .
  • the connecting member 130 is configured to electrically connect the heating member 120 to a power supply.
  • the connecting member 130 passes through the outer circumferential surface of the preheating member 112 .
  • the heating body 10 includes a porous ceramic body 110 and a heating member 120 located on the porous ceramic body 110 , which at least has the following advantages:
  • an implementation of this application further provides an electronic device.
  • the electronic device includes a power supply and the vaporizer, and the power supply is electrically connected to the vaporizer to supply power to the vaporizer. More specifically, the electronic device is an electronic vaporizer.
  • an implementation of this application further provides a method for preparing the heating body, including the following steps:
  • Step S 10 Integrally form, according to a preset shape, a raw material configured to prepare the porous ceramic body sand the heating member to prepare a green body.
  • the raw material configured to prepare the porous ceramic body includes a raw material configured to prepare the substrate and a raw material configured to prepare the preheating member.
  • the raw material configured to prepare the substrate includes ceramic powder, sintering auxiliary agent, and pore-forming agent.
  • types of the ceramic powder, the pore-forming agent, and the sintering auxiliary agent are not particularly limited, and the ceramic powder, the pore-forming agent, and the sintering auxiliary agent commonly used in the art may be used.
  • the ceramic powder may use a diatomite system or a zeolite system.
  • ceramic powder refers to a powdered material obtained by fully and uniformly mixing and roasting the raw material (excluding the sintering auxiliary agent and the pore-forming agent) used in the preparation of a ceramic.
  • the raw material configured to prepare the substrate in parts by mass, includes 40 to 70 parts of ceramic powder, 5 to 30 parts of sintering auxiliary agent, and 10 to 30 parts of pore-forming agent. In some other embodiments, in parts by mass, the raw material configured to prepare the substrate includes 45 to 70 parts of ceramic powder, 10 to 30 parts of sintering auxiliary agent, and 15 to 30 parts of pore-forming agent.
  • types and contents of components of the raw material configured to prepare the substrate are not limited to the above, and may further be adjusted according to an actual situation.
  • the raw material configured to prepare the preheating member includes the ceramic powder, the sintering auxiliary agent, and the pore-forming agent, where the ceramic powder includes far infrared ceramic powder.
  • the far infrared ceramic powder refers to ceramic powder with far infrared radiation performance.
  • the far infrared ceramic powder includes at least one of far infrared ceramic powder with a spinel or inverse spinel ferrite structure, or high-performance infrared ceramic powder prepared by mixing and sintering a transition metal oxide and a cordierite system silicate material.
  • the far infrared ceramic powder with the spinel or inverse spinel ferrite structure is far infrared ceramic powder with a spinel or inverse spinel ferrite structure including a transition metal oxide (such as NiO, Cr 2 O 3 , TiO 2 , MnO 2 , CuO, CoO, Fe 2 O 3 , ZnO, or the like).
  • a transition metal oxide such as NiO, Cr 2 O 3 , TiO 2 , MnO 2 , CuO, CoO, Fe 2 O 3 , ZnO, or the like.
  • the raw material configured to prepare the preheating member in parts by mass, includes 40 to 80 parts of ceramic powder, 5 to 30 parts of sintering auxiliary agent, and 10 to 30 parts of pore-forming agent, where the ceramic powder is the far infrared ceramic powder. In some other embodiments, in parts by mass, the raw material configured to prepare the preheating member includes 50 to 80 parts of far infrared ceramic powder, 10 to 30 parts of sintering auxiliary agent, and 15 to 30 parts of pore-forming agent, where the ceramic powder is the far infrared ceramic powder.
  • the raw material configured to prepare the preheating member includes the far infrared ceramic powder and the ordinary ceramic powder. That is, the ceramic powder in the raw material configured to prepare the preheating member includes the far infrared ceramic powder, the ordinary ceramic powder, the sintering auxiliary agent, and the pore-forming agent. In a specific example, in parts by mass, the raw material configured to prepare the preheating member includes 40 to 80 parts of ceramic powder, 5 to 30 parts of sintering auxiliary agent, and 10 to 30 parts of pore-forming agent, where the ceramic powder includes the far infrared ceramic powder and the ordinary ceramic powder.
  • the raw material configured to prepare the preheating member in parts by mass, includes 45 to 70 parts of far infrared ceramic powder, 10 to 30 parts of sintering auxiliary agent, and 15 to 30 parts of pore-forming agent, where the ceramic powder includes the far infrared ceramic powder and the ordinary ceramic powder.
  • types and contents of components of the raw material configured to prepare the preheating member are not limited to the above, and may further be adjusted according to an actual situation.
  • the heating member includes a heating portion and an infrared heating layer located on the heating portion.
  • a material of the heating portion is not particularly limited, and may be selected according to a resistance value of a heating member that needs to be prepared.
  • a material configured to prepare an infrared heating layer includes the far infrared ceramic powder, a binder, and a solvent.
  • the far infrared ceramic powder may be the same as the far infrared ceramic powder used in the preheating member, and may also be different from the far infrared powder used in the preheating member.
  • the binder is selected from at least one of an inorganic binder or an organic binder. Specifically, the inorganic binder is selected from at least one of aluminum sol or sodium silicate.
  • the organic binder is selected from at least one of Carboxymethyl Cellulose (CMC), acrylic polymer, polyvinyl alcohol (PVA), or dextrin.
  • CMC Carboxymethyl Cellulose
  • PVA polyvinyl alcohol
  • dextrin dextrin
  • a step of preparing the heating member with the infrared heating layer includes: preparing a material configured to prepare the infrared heating layer into a slurry; and the slurry is sprayed on the heating wire by using a spraying process (for example, ion spraying, a spraying gun, or the like), and is then formed, degummed, and sintered, to prepare a heating body.
  • a spraying process for example, ion spraying, a spraying gun, or the like
  • the heating member may be formed together with the raw material configured to prepare the porous ceramic body, be degummed, and be sintered, to prepare the heating body.
  • the formed heating member (a green body of the heating member) may also be formed again together with the raw material configured to prepare the porous ceramic body, and then be degummed and sintered, to prepare the heating body.
  • a problem of shrinkage matching between the preheating member and the substrate after sintering may be resolved by adjusting a mass ratio of the sintering auxiliary agent, the pore-forming agent, and skeleton-forming agent.
  • a molding manner in a process of preparing the green body is one of injection molding, gel injection molding, or dry pressing molding.
  • the molding manner in the process of preparing the green body is not limited to the above, and another manner may further be used.
  • Step S 402 Sinter the green body after degumming to prepare a heating body.
  • a temperature for degumming ranges from 350° C. to 700° C.; and a temperature for sintering ranges from 800° C. to 1200° C. In some other embodiments, a temperature for degumming ranges from 450° C. to 650° C.; and a temperature for sintering ranges from 750° C. to 1100° C.
  • the temperature for degumming and the temperature for sintering are not limited to the above, and the temperature for degumming and the temperature for sintering may be adjusted according to the prepared porous ceramic body.
  • the preparation method for the heating body is simple and convenient, and the prepared heating body has a preheating function, and has a good liquid guiding effect. Especially for liquid with relatively high viscosity, problems such as poor liquid guiding and dry heating of the heating body are not prone to occur.
  • a preparation method for the heating body is simple and convenient, and is easy for industrial production.
  • the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise.
  • the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.

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CN113287795B (zh) * 2021-06-09 2023-09-29 深圳市克莱鹏科技有限公司 一种双向陶瓷发热结构和电子烟及制备方法
CN113615885B (zh) * 2021-08-05 2024-06-11 深圳市基克纳科技有限公司 发热结构、雾化器及电子雾化装置
CN113828767B (zh) * 2021-08-24 2023-09-08 深圳市吉迩科技有限公司 一种发热膜材料、制备方法、雾化芯及应用
CN113768196B (zh) * 2021-08-26 2024-08-02 深圳麦时科技有限公司 一种电子雾化装置及其发热组件
CN114831352A (zh) * 2022-03-04 2022-08-02 海南摩尔兄弟科技有限公司 电子雾化装置、雾化器、雾化芯及其雾化芯的制造方法
CN117356761A (zh) * 2022-07-01 2024-01-09 海南摩尔兄弟科技有限公司 雾化组件及电子雾化器
WO2024103669A1 (fr) * 2022-11-16 2024-05-23 深圳市赛尔美电子科技有限公司 Structure de chauffage, dispositif de chauffage et son procédé de préparation, et atomiseur de cigarette électronique

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