WO2021238627A1 - Élément d'absorption de e-liquide et son procédé de préparation, et ensemble de chauffage et son procédé de préparation - Google Patents

Élément d'absorption de e-liquide et son procédé de préparation, et ensemble de chauffage et son procédé de préparation Download PDF

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Publication number
WO2021238627A1
WO2021238627A1 PCT/CN2021/092573 CN2021092573W WO2021238627A1 WO 2021238627 A1 WO2021238627 A1 WO 2021238627A1 CN 2021092573 W CN2021092573 W CN 2021092573W WO 2021238627 A1 WO2021238627 A1 WO 2021238627A1
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WIPO (PCT)
Prior art keywords
heating
absorbing member
liquid absorbing
liquid
atomization
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PCT/CN2021/092573
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English (en)
Chinese (zh)
Inventor
邱伟华
Original Assignee
东莞市维万特智能科技有限公司
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Priority claimed from CN202010463472.6A external-priority patent/CN113729294B/zh
Priority claimed from CN202010463480.0A external-priority patent/CN113729314A/zh
Priority claimed from CN202010463503.8A external-priority patent/CN113729315A/zh
Application filed by 东莞市维万特智能科技有限公司 filed Critical 东莞市维万特智能科技有限公司
Publication of WO2021238627A1 publication Critical patent/WO2021238627A1/fr

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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
    • A24F40/10—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
    • A24F40/46—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
    • A24F40/70—Manufacture

Definitions

  • the invention relates to the technical field of simulated smoking, in particular, to a liquid absorbing member and a preparation method thereof, a heating component and a preparation method thereof.
  • liquid absorbing parts Due to its anti-oxidation, high temperature resistance, corrosion resistance, long service life, and low scorch properties, liquid absorbing parts are widely used in the liquid absorbing heating module of aerosol generating devices.
  • liquid absorbing parts Due to its anti-oxidation, high temperature resistance, corrosion resistance, long service life, and low scorch properties, liquid absorbing parts are widely used in the liquid absorbing heating module of aerosol generating devices.
  • the absorbing member has a certain product qualification rate
  • how to make the prepared absorbing member not only has a higher liquid transfer rate and the strength of the absorbing member also meets the requirements is the focus of research.
  • the aerosol generating device on the market usually adopts a fiber cotton liquid guiding cord to wind the heating component of the heating wire.
  • the conduction efficiency of the aerosol forming matrix is low, and when the output power of the aerosol generating device is too high, the liquid guiding cord will be The phenomenon of scorching occurs due to lack of fluid, which in turn produces peculiar smell, which affects the user’s smoking taste; in addition, the heat generation on the heating wire is basically the same.
  • the part with a large mass of the forming base cannot be fully atomized by the heating wire, which leads to liquid leakage.
  • the part with a low mass of aerosol forming base cannot meet the needs of atomization and is prone to dry burning of the liquid guiding cord. All of the above will reduce the user’s Use experience.
  • An aerosol generating device also known as an electronic atomizer, is an electronic product that forms smoke by heating an aerosol to form a substrate for users to ingest. When in use, the formed smoke enters the air outlet channel under the suction action of the user, and finally enters the user's mouth.
  • a liquid absorbing member is made of diatomaceous earth, glass powder and a pore former through a sintering process. More than 80% of the pore diameters in the liquid absorbing member are concentrated between 14.21 and 20.21 ⁇ m. The open porosity of the liquid absorbing member is 55-65%.
  • the pore former is polymethyl methacrylate
  • the sphericity of the pore former is 0.9 to 0.95
  • the particle diameter of the pore former is 15 to 70 ⁇ m.
  • the Tg (glass transition temperature) of the glass frit is 750-800°C
  • the Tf (viscous flow temperature) of the glass frit is 900-950°C.
  • premix mix diatomaceous earth, glass powder and pore former uniformly to obtain a premix
  • step 3 Preparation of ceramic embryo body: the die-casting material prepared in step 2) is die-casted to obtain ceramic embryo body;
  • step 3) The ceramic body prepared in step 3) is heated to 40-60°C at a heating rate of 0.5 to 1.5°C/min, and kept for 5 to 20 minutes; and then heated to 160 at a heating rate of 0.5 to 1.5°C/min ⁇ 250°C, keep for 100 ⁇ 150min, then stop heating and cooling;
  • the ceramic body obtained in step 4) is heated to 180-250°C at a heating rate of 2 to 4°C/min, and kept for 5 to 20 minutes; then the temperature is raised at a heating rate of 0.5 to 1.5°C/min The temperature is kept at 450-550°C for 40-80 minutes; the temperature is increased to 970-1080°C at a heating rate of 8-12°C/min, and the temperature is kept for 90-130 minutes to obtain a liquid absorbing part.
  • the liquid absorbing member includes 55-75% premix and 25-45% forming aid, and the premix includes 15-50% diatomaceous earth, 20-60% glass powder and 10-50% Pore forming agent, the forming aid includes 60-90% paraffin wax and 10-40% stearic acid.
  • the molding aid is prepared by the following preparation steps: heating and stirring the paraffin wax and the stearic acid at 75-120° C., vacuuming during the stirring process, and the stirring time is 1.5-2.5 hours.
  • the premix is added to the evenly mixed paraffin wax and stearic acid, heated and stirred at 75-120° C., vacuum is applied during the stirring process, and the stirring time is 3 to 5 hours.
  • a heating component comprising any one of the above-mentioned liquid absorbing member and a heating member arranged on the liquid absorbing member, the liquid absorbing member including an upper end surface and an atomizing surface, the upper end surface Is arranged opposite to the atomizing surface, the liquid absorbing member is used to conduct the aerosol-forming substrate from the upper end surface to the atomizing surface, the heating element is arranged on the atomizing surface, and the A liquid inlet groove is recessed on the upper end surface of the liquid absorbing member, and the liquid inlet groove is used for contacting the aerosol to form a substrate.
  • a method for preparing a heat generating component as described above includes the following steps: coating metal slurry on one end surface of the liquid absorbing member, raising the temperature to 480 to 520°C at a heating rate of 2.5 to 4°C/min, and then absorbing The liquid piece is heated to 810-910°C at a heating rate of 8-12°C/min, and kept for 10-30 minutes to make the metal slurry form a heating element to obtain a heating component.
  • the metal paste includes 48% to 73% Ag, 5 to 35% Pd, and 13 to 20% binder.
  • the liquid absorbing element of the present invention is made by diatomaceous earth, sintering aids and pore formers through a sintering process, and more than 80% of the pore diameters in the liquid absorbing element are concentrated between 14.21 and 20.21 ⁇ m,
  • the open porosity of the liquid absorbing member is 55-65%, and the liquid absorbing member not only has a higher liquid conduction rate, but also has a higher strength of the liquid absorbing member.
  • the liquid absorbing piece and the preparation method thereof provided by the present invention are prepared by selecting a suitable ratio of premix and forming aids to prepare a die-casting material, and then die-casting, degumming and sintering to prepare the absorbing piece.
  • the product qualification rate of the prepared liquid absorbing piece is relatively high. High, and the prepared liquid absorbing member has high strength, uniform pore size distribution, and high oil conduction rate.
  • polymethyl methacrylate with a sphericity of 0.9 to 0.95 is selected as the pore forming agent, and the particle size of the pore forming agent is 15 to 70 ⁇ m.
  • the pore forming agent is uniformly and fully discharged from the ceramic body to form The pore structure of the ceramic body has a uniform pore size distribution.
  • glass powder with a lower glass transition temperature and viscous flow temperature is used, so that the ceramic body can be sintered at a lower temperature, and the glass powder plays a role of low-temperature bonding, which can improve the strength without destroying the pore formation.
  • the heating component provided by the present invention includes a liquid absorbing element and a heating element arranged on the liquid absorbing element.
  • the liquid absorbing element is made of diatomaceous earth and glass powder through a sintering process. % Of the pore size is concentrated between 14.21-20.21 ⁇ m, so that the heating component of the present invention not only has a higher liquid conduction rate, but also the strength of the heating component meets the requirements.
  • the method for preparing the heating component selects a liquid absorbing piece made of diatomaceous earth and glass powder through a staged heating and sintering process, and coating the surface of the liquid absorbing piece with a metal slurry, heating and heating to make the metal
  • the slurry forms a heating element, and a heating component with a higher oil conduction rate and a higher strength is obtained.
  • the present invention also provides a heat generating component that can be reasonably heated according to the mass of the aerosol to be atomized to form a base;
  • a heating component the heating component includes a liquid absorbing member and a heating member, the liquid absorbing member is made of porous material, and the liquid absorbing member includes an upper end surface and a heat generating member.
  • the atomization surface, the upper end surface and the atomization surface are arranged oppositely, the liquid absorbing member is used to conduct the aerosol-forming substrate from the upper end surface to the atomization surface, and the heating element is disposed on the atomization surface.
  • the resistance of the area on the heating element where there is more aerosol-forming substrates to be atomized is greater than the resistance of the area on the heating element where the aerosol-forming substrates are less mass to be atomized.
  • the upper end surface of the liquid absorbing member is recessed with a liquid inlet groove, the liquid inlet groove is used to contact the aerosol forming substrate, the heating element includes a first heating part and a second heating part, the first The heating part corresponds to the position of the liquid inlet tank, and the resistance of the first heating part is greater than the resistance of the second heating part.
  • the liquid inlet groove has two, the two liquid inlet grooves are respectively located on opposite sides of the upper end surface, the first heating part has two, and the two first heating parts are respectively connected On opposite sides of the second heating part, and one of the first heating parts corresponds to the position of the one of the liquid inlet grooves, the two first heating parts are arranged symmetrically about the second heating part .
  • the second heating portion has a ring structure
  • the first heating portion has a strip structure bent toward the second heating portion, and one end of the first heating portion is connected to the second heating portion Smooth transition connection.
  • width dimension t1 of the first heat-generating part is smaller than the width dimension t2 of the second heat-generating part.
  • an end of the first heating part away from the second heating part is provided with a power connection part
  • the power connection part is used for abutting the electrode column
  • the upper end surface is recessed with a groove
  • the first The two heating parts correspond to the position of the groove
  • the electrical connection part corresponds to the position of the area between the liquid inlet groove and the groove that is not thinned.
  • an air passage is provided in the liquid absorbing member, one end of the air passage passes through the bottom wall of the groove, and the other end of the air passage passes through the atomizing surface.
  • the two heating parts are arranged around the outer circumference of the air passage.
  • the upper end surface and the atomization surface are parallel to each other, and the direction of the atomization surface toward the upper end surface is defined as the first direction of the liquid absorbing member, and the upper end of the liquid absorbing member is along the first direction.
  • the distance from the atomizing surface to the upper end surface is the height h of the liquid absorbing member, and the depth of the groove along the first direction is H, 0.3 ⁇ H/h ⁇ 0.5.
  • An atomization component includes the heating component described in any one of the foregoing.
  • the atomizer includes the aforementioned atomization assembly, the atomizer further includes a liquid storage member, the liquid storage member is provided with a liquid storage cavity, the liquid storage cavity is used to store gas
  • the sol forms the matrix.
  • An aerosol generating device includes the aforementioned atomizer, the aerosol generating device further includes a power supply device, and the power supply device is electrically connected to the atomizer.
  • the heating element or the atomizing assembly or the atomizer or the aerosol generating device provided by the present invention has the resistance of the area where the aerosol to be atomized is formed on the heating element on the atomizing surface. It is greater than the resistance of the area on the heating element where the mass of the aerosol forming base to be atomized is small, so that each area on the heating element can adaptively generate an appropriate amount of heat according to the amount of the aerosol forming substrate to meet the needs of atomization, effectively avoiding liquid leakage
  • the liquid absorbing member made of porous material has higher high temperature resistance, which can effectively prevent the liquid absorbing member from being scorched and improve the user's smoking taste.
  • the invention also provides an atomizer with good smoke condensation effect
  • an aerosol generating device with the atomizer is provided.
  • an atomizer the atomizer includes a liquid storage part, an atomization assembly and an air inlet pipe, the atomization assembly is arranged at one end of the liquid storage part ,
  • the liquid storage member is provided with a liquid storage cavity and an air outlet channel, the liquid storage cavity is used to store an aerosol forming matrix
  • the atomization component includes a heating component, an atomization cavity and an air inlet, the heating component
  • the smoke generated by heating the aerosol-forming substrate is filled in the atomization cavity
  • the air inlet is in communication with the atomization cavity and the outside atmosphere
  • the atomization cavity is in communication with the air inlet end of the air outlet channel
  • the inlet end of the inlet pipe is in communication with the outside atmosphere, and the outlet end of the inlet pipe extends to the inlet end of the outlet passage.
  • the air outlet channel is provided on the other side of the heating assembly relative to the atomization cavity, and an air passing channel is opened on the heating assembly.
  • the air passing channel is connected to the atomizing cavity and the air outlet
  • the air inlet ends of the passages are all connected, the air inlet pipe passes through the heating component through the air passage, and a gap is formed between the channel wall of the air passage and the outer wall of the air inlet pipe.
  • the air inlet pipe is a straight pipe
  • the air outlet channel is a straight channel
  • the central axis of the air inlet pipe is collinear with the central axis of the air outlet channel.
  • the heating component includes a liquid absorbing member and a heating member
  • the liquid absorbing member includes an upper end surface and an atomizing surface disposed oppositely, and the upper end surface is provided with a liquid inlet groove communicating with the liquid storage cavity, so The heating element is arranged on the atomizing surface, and the air passage is opened on the liquid suction element.
  • the upper end surface is recessed with a groove, one end of the air passage passes through the bottom wall of the groove, and the other end of the air passage passes through the atomizing surface.
  • the cross-sectional area is larger than the cross-sectional area of the air passage.
  • the atomization assembly further includes an atomization support and an atomization base, the atomization support and the atomization base are matedly connected, the atomization cavity is formed in the atomization base, and the heating assembly Is arranged between the atomization support and the atomization base, the air inlet is opened on the atomization base, and the atomization base is also provided with an air inlet, and the air inlet is connected to the outside The air is communicated with, and the air inlet end of the air inlet pipe is connected with the atomization base and communicates with the air inlet hole correspondingly.
  • the liquid storage member includes a housing and a vent tube housed in the housing, the liquid storage cavity is formed by the inner cavity of the housing, and the air outlet channel is formed by the inner cavity of the vent tube.
  • the atomization support is provided with a liquid inlet and an air outlet, the liquid inlet is in communication with the liquid storage cavity, the air outlet is in communication with the groove, and the air outlet channel is in communication with the air outlet.
  • the air outlet groove is a conical groove, the large mouth end of the air outlet groove is communicated with the groove correspondingly, and the small mouth end of the air outlet groove is communicated with the air outlet channel.
  • the liquid storage member further includes a cigarette holder, the cigarette holder is sleeved on the outside of the upper end of the housing, the cigarette holder is provided with a smoke outlet, and the smoke outlet communicates with the outlet end of the gas outlet channel.
  • An aerosol generating device includes the atomizer described in any one of the foregoing, the aerosol generating device further includes a power supply device, and the power supply device is electrically connected to the atomizer.
  • the beneficial effect of the present invention is that the atomizer or electronic cigarette provided by the present invention is provided with an air inlet pipe so that the air outlet end of the air inlet pipe extends to the air inlet end of the air outlet channel, so that the smoke with higher temperature and the smoke with lower temperature
  • the external air is mixed at the inlet end of the outlet channel, so that the smoke is fully condensed to form larger smoke particles, the condensation effect is good, the inhalation taste is improved, and the user experience is improved.
  • FIG. 1 is a microscopic view of a liquid absorbing member 31 prepared in Example 1 of the present invention under a super-depth microscope magnification of 300 times;
  • Example 2 is a micro-topography view of the liquid absorbing member 31 prepared in Example 1 of the present invention under a 600 times magnification of a super depth-of-field microscope;
  • Example 3 is a SEM (scanning electron microscope) image of the liquid absorbing member 31 prepared in Example 1 of the present invention
  • Example 4 is another SEM (scanning electron microscope) image of the liquid absorbing member 31 prepared in Example 1 of the present invention.
  • FIG. 5 is a pore size distribution diagram of the liquid absorbing member 31 prepared in Example 1 of the present invention.
  • FIG. 6 is a perspective view of the atomizer in the first embodiment of the atomizer and aerosol generating device of the present invention
  • Figure 7 is a cross-sectional view of the atomizer shown in Figure 6;
  • Fig. 8 is a perspective view of a heating component in the atomizer shown in Fig. 7;
  • Figure 9 is a top view of the heat generating component shown in Figure 8.
  • Figure 10 is a bottom view of the heat generating component shown in Figure 8.
  • Figure 11 is a cross-sectional view of the liquid absorbing member in the heating assembly shown in Figure 8;
  • Figure 12 is a schematic view of the structure of a traditional heating element
  • Figure 13 is the time-temperature curve obtained in the dry-burning temperature test
  • Figure 14 is the time-temperature curve obtained in the atomization temperature test
  • FIG. 15 is a cross-sectional view of the atomizer of the second embodiment of the atomizer and aerosol generating device of the present invention.
  • Fig. 16 is a perspective view of the heating component in the atomizer shown in Fig. 15;
  • Figure 17 is a top view of the heat generating component shown in Figure 16;
  • Fig. 18 is a bottom view of the heat generating component shown in Fig. 16.
  • Heating component 30 Liquid absorption component 31 Heating component 32
  • the fourth end face 31G The first heating part 321 The second heating part 322
  • FIG. 1 is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, so it only shows the structure related to the present invention.
  • liquid absorbing member 31 and preparation method thereof examples include heating component 30 and preparation method thereof
  • the present invention provides a method for preparing the liquid absorbing member 31, which includes the following steps:
  • premix mix diatomaceous earth, glass powder and pore former uniformly to obtain a premix
  • step 3 Preparation of ceramic embryo body: the die-casting material prepared in step 2) is die-casted to obtain ceramic embryo body;
  • step 3) The ceramic body prepared in step 3) is heated to 40-60°C at a heating rate of 0.5 to 1.5°C/min, and kept for 5 to 20 minutes; and then heated to 160 at a heating rate of 0.5 to 1.5°C/min ⁇ 250°C, keep for 100 ⁇ 150min, then stop heating and cooling;
  • Step 5 Preparation of liquid absorbing member 31:
  • the ceramic body obtained in step 4) is heated to 180-250°C at a heating rate of 2 to 4°C/min, and the temperature is kept for 5 to 20 minutes; then at a heating rate of 0.5 to 1.5°C/min Raise the temperature to 450 ⁇ 550°C for 40 ⁇ 80min; then heat it to 970 ⁇ 1080°C at a heating rate of 8 ⁇ 12°C/min and keep it for 90 ⁇ 130min to obtain the liquid absorbing part 31;
  • step 2) 55-75% of the premix and 25-45% of the forming aid are mixed.
  • the Tg (glass transition temperature) of the glass powder is 750-800°C
  • the Tf (viscous flow temperature) of the glass powder is 900-950°C
  • the Tm (melting temperature) of the glass powder is 950-1100°C.
  • the sintering aid may also be aluminum phosphate.
  • step 1) 15-50% diatomaceous earth, 20-60% glass powder and 10-50% pore former are mixed to prepare a premix.
  • the particle size of the diatomaceous earth is 5 to 35 ⁇ m.
  • the pore former is polymethyl methacrylate, the sphericity of the pore former is 0.9 to 0.95, and the particle diameter of the pore former is 15 to 70 ⁇ m.
  • the pore former can also be any one of starch, graphite, carbon powder or lignin.
  • the molding aid includes 60-90% paraffin wax and 10-40% stearic acid.
  • the molding aid is prepared by the following preparation steps: heating and stirring the paraffin wax and the stearic acid at 75-120° C., vacuuming during the stirring process, and the stirring time is 1.5-2.5 hours.
  • the premix is added to the evenly mixed paraffin wax and stearic acid, heated and stirred at 75-120°C, vacuum is applied during the stirring process, and the stirring time is 3 to 5 hours.
  • the temperature of die-casting molding is 70-80°C
  • the die-casting pressure is 0.5-1 MPa
  • the die-casting time is 3-10s.
  • the open porosity of the liquid absorbing member 31 prepared by the method for preparing the liquid absorbing member 31 is 55-65%.
  • the open porosity of the liquid absorbing member 31 is 60.6%.
  • a method for preparing a heating component 30 containing the above-mentioned liquid absorbing member 31 includes the following steps: one end surface of the prepared liquid absorbing member 31 is used as a printing surface, and a metal paste is coated on the printing surface, The temperature is raised to 480-520°C at a heating rate of 2.5-4°C/min, and then the liquid absorbing member 31 is heated to 810-910°C at a heating rate of 8-12°C/min, and the temperature is kept for 10-30 minutes. The heat generating element 32 is formed, and the heat generating assembly 30 is obtained.
  • the printing surface Before coating the metal paste on the printing surface, the printing surface is polished, and the polishing thickness of the printing surface is 0.1-0.3 mm.
  • the metal paste includes 48% to 73% Ag, 5 to 35% Pd, and 13 to 20% binder.
  • a heating component 30 prepared by the preparation method of the above heating component 30.
  • the heating component 30 includes a liquid absorbing member 31 and a heating member 32 arranged on the liquid absorbing member 31.
  • the liquid absorbing member 31 is made of diatom
  • the soil and glass powder are prepared by a sintering process, and more than 80% of the pore diameters of the liquid absorbing member 31 are concentrated between 14.21 and 20.21 ⁇ m.
  • the open porosity of the liquid absorbing member 31 is 55-65%.
  • Diatomaceous earth includes silicon dioxide SiO 2 and a small amount of oxides and organic matter.
  • the mass fraction of SiO 2 is more than 80%.
  • the oxides in diatomaceous earth include alumina Al 2 O 3 and iron oxide Fe 2 O 3.
  • the sintering aid reduces the sintering temperature, and produces a vitreous phase with a bonding effect at high temperatures, which improves the strength of the liquid absorbing member 31.
  • Glass powder includes: O: 49.94%, Na: 3.34%; Mg: 0.83%; Al: 4.6%; Si: 28.35%; K: 2.35%; Ca: 3.81%; Ba: 6.78%.
  • the glass powder is crushed before use To the particle size of 1.5-6 ⁇ m, controlling the particle size of the glass powder is beneficial to the dispersion operation and sintering of the glass powder, and enables the liquid absorbing member 31 to have both higher strength and higher open porosity.
  • the particle size of the glass powder is less than 1.5 ⁇ m, and the specific surface area of the glass powder is large, which is not conducive to the mixing and dispersion operation, which will cause the open porosity of the liquid absorbing member 31 to be low; the particle size of the glass powder is greater than 6 ⁇ m, and the glass powder
  • the uniformity of the liquid absorbing member 31 is poor, and aggregation will occur after sintering, resulting in poor strength of the liquid absorbing member 31.
  • the glass frit has a Tg (glass transition temperature) of 750 to 800°C, and the glass frit has a Tf (viscous flow temperature) of 900 to 950°C.
  • Tg glass transition temperature
  • Tf viscous flow temperature
  • the capillary force is the sintering power of the liquid absorbing member 31, which promotes the sintering of the diatomite, and therefore can enhance the absorption.
  • the use of glass powder that meets lower Tg (glass transition temperature) and Tf (viscous flow temperature) enables the ceramic body to be sintered at a lower temperature.
  • the glass powder can play a role in low-temperature bonding, which can improve strength and at the same time It will not damage the through-holes left by the volatilization of the pore-forming agent, so that the prepared liquid absorbing member 31 has both higher strength and higher open porosity.
  • the pore former is used to increase the structure of the pores in the porous ceramic. Controlling the particle size of the pore former can control the size of the pore structure in the prepared liquid absorbing member 31.
  • polymethyl methacrylate is used as the pore former.
  • the particle size of the pore agent is 15 to 70 ⁇ m, and the sphericity of the pore former is 0.9 to 0.95.
  • the liquid absorbing member 31 of this embodiment is made of 67% premix and 33% forming aid, wherein the premix includes 33% diatomaceous earth, 30% glass powder, and 37% pore former.
  • the molding aid includes 85% stearic acid and 15% paraffin.
  • the median diameter of the diatomaceous earth is 19.85 ⁇ m
  • the median diameter of the glass powder is 3.68 ⁇ m
  • the pore former is poly Methyl methacrylate
  • the sphericity of the pore former is 0.95
  • the median particle diameter of the pore former is 30 ⁇ m
  • the median particle diameter refers to when the cumulative particle size distribution percentage of a sample reaches 50%.
  • Particle size the physical meaning is that the particles larger than it account for 50%, and the particles smaller than it account for 50%.
  • the preparation method of the liquid absorbing member 31 of this embodiment includes the following steps:
  • the premix the 33% diatomaceous earth, 30% glass powder and 37% pore former of this example are stirred and mixed uniformly by a roller ball mill, and the mixing time is 4h, so that the pore former is uniform in the premix Distribute to obtain a premix;
  • a V-type mixer or a mixer can also be used for dry mixing;
  • the die-casting material prepared in step 2) is put into the RZ-8 hot-pressure grouting machine, and the die-casting is performed at a die-casting temperature of 75°C and a die-casting pressure of 0.6MPa, and the die-casting time is 6s to obtain Ceramic body;
  • the die-cast material can be cut to a particle size of less than 5mm, and the die-cast material cut into granules is poured into the grouting Die casting can be done in the machine;
  • step 4) Degumming treatment: the ceramic body prepared in step 3) is heated in the first stage, and the temperature is raised to 50°C at a heating rate of 1°C/min, and the temperature is kept for 10 minutes; then the second stage is heated, and the temperature is raised at 0.5°C/min. The rate is increased to 200°C, the temperature is kept for 120 minutes, then the heating is stopped, and the cooling is stopped; among them, the function of the first stage of heating is to increase the internal and external temperature of the ceramic body, and after the first stage of heating, the temperature is kept for a period of time to make the interior of the ceramic body The external temperature is consistent to ensure that the molding aid can be uniformly removed from the ceramic body during the subsequent processing.
  • the second stage of heating is to make the molding aid part of the ceramic body to be discharged, so as to maintain the strength of the ceramic body and facilitate
  • the melting point of paraffin wax is 52-78°C
  • the boiling point is 300-550°C
  • the melting point of stearic acid is 67-73°C
  • the boiling point is 176-184°C.
  • the stearic acid vaporizes and is discharged from the ceramic body, and the paraffin is melted and discharged from the ceramic body under the action of gravity.
  • the function of the first stage of heat preservation is to make the internal and external temperature of the ceramic body consistent, and prevent the ceramic body from deforming and cracking due to the temperature difference between the inside and outside of the ceramic body;
  • the function of the second stage of heat preservation is to completely Discharge the pore-forming agent so that the ceramic body does not contain organic components, and prevents the ceramic body from cracking due to the volatilization of residual organic components during the third stage of heating.
  • Each part is evenly fired into the liquid absorbing member 31 to ensure the strength of the liquid absorbing member 31.
  • polymethyl methacrylate Since the boiling point of the pore-forming agent polymethyl methacrylate is 195 ⁇ 205°C, between the first stage of heat preservation and the second stage of heat preservation, polymethyl methacrylate vaporizes and is discharged from the ceramic body, thereby forming a ceramic embryo
  • the heating rate at this time is relatively slow.
  • the manufacturing method of the heating component 30 containing the above-mentioned liquid absorbing member 31 of this embodiment includes the following steps: one end surface of the above-prepared liquid absorbing member 31 is used as a printing surface, and the printing surface is polished. Polished with a thickness of 0.2mm, and then coated with a metal paste on the printing surface, the metal paste includes: 65% Ag, 20% Pd and 15% binder, the adhesive model is B76, the manufacturer is Sinopharm reagent, heat up to 500°C at a heating rate of 3°C/min, and then heat up the liquid absorbing part 31 to 880°C at a heating rate of 10°C/min for 20 minutes, and the metal slurry forms a heating element 32, the heating element The thickness of 32 is 40 ⁇ m, and the heat-generating component 30 is obtained.
  • the printing surface of the liquid absorbing member 31 is the end surface on which the heating element 32 is provided on the liquid absorbing member 31, and the printing surface of the liquid absorbing member 31 is polished.
  • the closed holes produced in the sintering process are polished away; second, the surface of the liquid absorbing member 31 is not smooth after sintering, and the printed surface is polished to avoid short circuit problems caused by the uneven surface of the heating element 32 when the thick film or thin film process is formed.
  • the height of the ceramic body will be about 0.1-0.3mm higher than the designed height when the ceramic body is manufactured. After sintering into the liquid absorbing part 31, the height of the liquid absorbing part 31 will shrink relative to the height of the ceramic body. However, the height of the porous ceramic will still be more than the designed height.
  • an 80-mesh grinding wheel is used to polish the printing surface of the liquid absorbing member 31, so as to maintain the morphology of the hole structure on the printing surface. It is understandable that in other embodiments not shown, the printing surface can also be polished using tools such as sandpaper and grinding heads. The polishing thickness of the printing surface can be adjusted according to the design requirements of the liquid absorbing member 31.
  • the temperature is raised to 500°C at a heating rate of 3°C/min, so that the adhesive vaporizes and is discharged from the heating element 30.
  • the heating rate is slightly slower at this time, and then the heating rate is increased to 880°C at a heating rate of 10°C/min, and the temperature is kept for 20 minutes.
  • the second stage The heating rate is higher, which improves the production efficiency.
  • the glass powder bonds Ag and Pd with diatomaceous earth, so that the metal paste is closely combined with the printing surface of the liquid absorbing member 31.
  • the liquid absorbing member 31 of this embodiment is made of 60% premix and 40% forming aid, wherein the premix includes 25% diatomaceous earth, 35% glass powder, and 40% pore former.
  • the molding aid includes 25% stearic acid and 75% paraffin.
  • the median particle size of the diatomaceous earth is 55 ⁇ m
  • the median particle size of the glass powder is 1.5 ⁇ m
  • the pore former is polymethyl methacrylate. Methyl acrylate
  • the sphericity of the pore former is 0.9
  • the median particle size of the pore former is 15 ⁇ m.
  • the preparation method of the liquid absorbing member 31 of this embodiment includes the following steps:
  • premix 25% diatomaceous earth, 35% glass powder and 40% pore former of this embodiment are stirred and mixed uniformly by a roller ball mill, and the mixing time is 4h to obtain a premix.
  • the die-casting material prepared in step 2) is added to the RZ-8 hot-pressure grouting machine, and the die-casting is performed at a die-casting temperature of 75°C and a die-casting pressure of 0.7MPa, and the die-casting time is 4s to obtain Ceramic body
  • step 4) Degumming treatment: the ceramic body prepared in step 3) is heated in the first stage, and the temperature is raised to 50°C at a heating rate of 1.5°C/min, and the temperature is kept for 10 minutes; then the second stage is heated, and the temperature is raised at 0.5°C/min. The rate is increased to 200°C, the temperature is kept for 150 minutes, then the heating is stopped, and the cooling is performed.
  • the manufacturing method of the heating component 30 containing the above-mentioned liquid absorbing member 31 of this embodiment includes the following steps: one end surface of the above-prepared liquid absorbing member 31 is used as a printing surface, and the printing surface is polished. Polished with a thickness of 0.2mm, and then coated with a metal paste on the printing surface, the metal paste includes: 65% Ag, 20% Pd and 15% binder, the adhesive model is B76, the manufacturer is Sinopharm reagent, heat up to 500°C at a heating rate of 3°C/min, and then heat up the liquid absorbing part 31 to 880°C at a heating rate of 10°C/min for 20 minutes, and the metal slurry forms a heating element 32, the heating element The thickness of 32 is 40 ⁇ m, and the heat-generating component 30 is obtained.
  • the temperature is raised to 500°C at a heating rate of 3°C/min, so that the adhesive vaporizes and is discharged from the heating element 30.
  • the heating rate is slightly slower at this time, and then the heating rate is increased to 880°C at a heating rate of 10°C/min, and the temperature is kept for 20 minutes.
  • the second stage The heating rate is higher, which improves the production efficiency.
  • the glass powder bonds Ag and Pd with diatomaceous earth, so that the metal paste is closely combined with the printing surface of the liquid absorbing member 31.
  • the liquid absorbing member 31 of this embodiment is made of 75% premix and 25% forming aid, wherein the premix includes 40% diatomaceous earth, 25% glass powder, and 35% pore former.
  • the molding aid includes 15% stearic acid and 85% paraffin.
  • the median diameter of the diatomaceous earth is 11.23 ⁇ m
  • the median diameter of the glass powder is 4.43 ⁇ m
  • the pore former is poly For methyl methacrylate
  • the sphericity of the pore former is 0.95
  • the median particle diameter of the pore former is 20 ⁇ m.
  • the preparation method of the liquid absorbing member 31 of this embodiment includes the following steps:
  • premix 40% diatomaceous earth, 25% glass powder and 35% pore former of this embodiment are stirred and mixed uniformly by a roller ball mill, and the mixing time is 4h to obtain a premix.
  • the die-casting material prepared in step 2) is added to the RZ-8 hot-pressure grouting machine, and the die-casting is performed at a die-casting temperature of 75°C and a die-casting pressure of 0.7MPa, and the die-casting time is 10s to obtain Ceramic body
  • step 4) Degumming treatment: the ceramic body prepared in step 3) is heated in the first stage, and the temperature is raised to 50°C at a heating rate of 1.5°C/min, and the temperature is kept for 10 minutes; then the second stage is heated, and the temperature is raised at 1°C/min. The rate is increased to 180°C, the temperature is kept for 90 minutes, then the heating is stopped and the cooling is performed.
  • the manufacturing method of the heating component 30 containing the above-mentioned liquid absorbing member 31 of this embodiment includes the following steps: one end surface of the above-prepared liquid absorbing member 31 is used as a printing surface, and the printing surface is polished. Polished with a thickness of 0.2mm, and then coated with a metal paste on the printing surface, the metal paste includes: 65% Ag, 20% Pd and 15% binder, the adhesive model is B76, the manufacturer is Sinopharm reagent, heat up to 500°C at a heating rate of 3°C/min, and then heat up the liquid absorbing part 31 to 880°C at a heating rate of 10°C/min for 20 minutes, and the metal slurry forms a heating element 32, the heating element The thickness of 32 is 40 ⁇ m, and the heat generating component 30 is obtained.
  • the temperature is raised to 500°C at a heating rate of 3°C/min, so that the adhesive vaporizes and is discharged from the heating element 30.
  • the heating rate is slightly slower at this time, and then the heating rate is increased to 880°C at a heating rate of 10°C/min, and the temperature is kept for 20 minutes.
  • the second stage The heating rate is higher, which improves the production efficiency.
  • the glass powder bonds Ag and Pd with diatomaceous earth, so that the metal paste is closely combined with the printing surface of the liquid absorbing member 31.
  • the liquid absorbing member 31 of this embodiment is made of 55% premix and 45% forming aid, wherein the premix includes 50% diatomaceous earth, 20% glass powder, and 30% pore former.
  • the molding aid includes 25% stearic acid and 75% paraffin.
  • the median diameter of the diatomaceous earth is 27.56 ⁇ m
  • the median diameter of the glass powder is 5.24 ⁇ m
  • the pore former is poly For methyl methacrylate
  • the sphericity of the pore former is 0.95
  • the median particle diameter of the pore former is 70 ⁇ m.
  • the preparation method of the liquid absorbing member 31 of this embodiment includes the following steps:
  • premix the 50% diatomaceous earth, 20% glass powder and 30% pore former of this embodiment are stirred and mixed uniformly by a roller ball mill, and the mixing time is 4h to obtain the premix.
  • the die-casting material prepared in step 2) is added to the RZ-8 hot-pressure grouting machine, and the die-casting is performed at a die-casting temperature of 75°C and a die-casting pressure of 0.7MPa, and the die-casting time is 8s to obtain Ceramic body
  • step 4) Degumming treatment: the ceramic body prepared in step 3) is heated in the first stage, and the temperature is raised to 50°C at a heating rate of 1.5°C/min, and the temperature is kept for 10 minutes; then the second stage is heated, and the temperature is raised at 1°C/min. The rate is increased to 180°C, the temperature is kept for 90 minutes, then the heating is stopped and the cooling is performed.
  • the manufacturing method of the heating component 30 containing the above-mentioned liquid absorbing member 31 of this embodiment includes the following steps: one end surface of the above-prepared liquid absorbing member 31 is used as a printing surface, and the printing surface is polished. Polished with a thickness of 0.2mm, and then coated with a metal paste on the printing surface, the metal paste includes: 65% Ag, 20% Pd and 15% binder, the adhesive model is B76, the manufacturer is Sinopharm reagent, heat up to 500°C at a heating rate of 3°C/min, and then heat up the liquid absorbing part 31 to 880°C at a heating rate of 10°C/min for 20 minutes, and the metal slurry forms a heating element 32, the heating element The thickness of 32 is 40 ⁇ m, and the heat-generating component 30 is obtained.
  • the temperature is raised to 500°C at a heating rate of 3°C/min, so that the adhesive vaporizes and is discharged from the heating element 30.
  • the heating rate is slightly slower at this time, and then the heating rate is increased to 880°C at a heating rate of 10°C/min, and the temperature is kept for 20 minutes.
  • the second stage The heating rate is higher, which improves the production efficiency.
  • the glass powder bonds Ag and Pd with diatomaceous earth, so that the metal paste is closely combined with the printing surface of the liquid absorbing member 31.
  • the liquid absorbing member 31 of this embodiment is made of 70% premix and 30% forming aid, wherein the premix includes 15% diatomaceous earth, 45% glass powder and 40% pore former.
  • the molding aid includes 35% stearic acid and 65% paraffin.
  • the median diameter of the diatomaceous earth is 35.0 ⁇ m
  • the median diameter of the glass powder is 5.98 ⁇ m
  • the pore former is poly For methyl methacrylate
  • the sphericity of the pore former is 0.95
  • the median particle diameter of the pore former is 50 ⁇ m.
  • the preparation method of the liquid absorbing member 31 of this embodiment includes the following steps:
  • premix the 15% diatomaceous earth, 45% glass powder and 40% pore former of this embodiment are stirred and mixed uniformly by a roller ball mill, and the mixing time is 4 hours to obtain a premix.
  • the die-casting material prepared in step 2) is added to the RZ-8 hot-pressure grouting machine, and the die-casting is performed at a die-casting temperature of 75°C and a die-casting pressure of 0.7MPa, and the die-casting time is 10s to obtain Ceramic body
  • step 4) Degumming treatment: the ceramic body prepared in step 3) is heated in the first stage, and the temperature is raised to 50°C at a heating rate of 1.2°C/min, and the temperature is kept for 10 minutes; then the second stage is heated, and the temperature is raised at 1°C/min The rate is increased to 220°C, the temperature is kept for 90 minutes, then the heating is stopped, and the cooling is performed.
  • the manufacturing method of the heating component 30 containing the above-mentioned liquid absorbing member 31 of this embodiment includes the following steps: one end surface of the above-prepared liquid absorbing member 31 is used as a printing surface, and the printing surface is polished. Polished with a thickness of 0.2mm, and then coated with a metal paste on the printing surface, the metal paste includes: 65% Ag, 20% Pd and 15% binder, the adhesive model is B76, the manufacturer is Sinopharm reagent, heat up to 500°C at a heating rate of 3°C/min, and then heat up the liquid absorbing part 31 to 880°C at a heating rate of 10°C/min for 20 minutes, and the metal slurry forms a heating element 32, the heating element The thickness of 32 is 40 ⁇ m, and the heat-generating component 30 is obtained.
  • the temperature is raised to 500°C at a heating rate of 3°C/min, so that the adhesive vaporizes and is discharged from the heating element 30.
  • the heating rate is slightly slower at this time, and then the heating rate is increased to 880°C at a heating rate of 10°C/min, and the temperature is kept for 20 minutes.
  • the second stage The heating rate is higher, which improves the production efficiency.
  • the glass powder bonds Ag and Pd with diatomaceous earth, so that the metal paste is closely combined with the printing surface of the liquid absorbing member 31.
  • a commercially available liquid absorbing member 31 was selected as a comparative example, and various performances of the liquid absorbing member 31 prepared in Experimental Example 1 to Example 5 and the liquid absorbing member 31 in the comparative example were compared.
  • the liquid absorbing member 31 prepared in Example 1 is polished, ultrasonically cleaned, and then dried.
  • the ultra-depth-of-field microscope has the depth of field and depth-of-field superposition technology of traditional optical microscopes, which can quickly and accurately detect and analyze the depth of field of the ground surface.
  • an ultra-depth-of-field microscope (model: LEICA DVM6) is used to observe the surface of the liquid-absorbing member 31 prepared in Example 1 after pretreatment, start the ultra-depth-of-field microscope, open the software, put the liquid-absorbing member 31 on the stage, and adjust the ultra-depth of field
  • the magnification of the microscope, auto-focus in the software, save the photo, the results are shown in Figure 1 and Figure 2. Among them, Fig.
  • Example 1 is a 300 times magnification of the super depth-of-field microscope to observe the uniform distribution of pores on the surface of the liquid absorbing member 31, and the pore size is close to the same; During the experiment, three different regions of the porous ceramic prepared in Example 1 were also tested, and the pore distribution in the three different regions was uniform, and the pore size was close to the same.
  • Fig. 3 is an SEM image enlarged by 250 times
  • Fig. 4 is an SEM image enlarged by 500 times.
  • the pore distribution of the liquid absorbing member 31 prepared in Example 1 is uniform, and the pore size is close to the same.
  • the open porosity refers to the percentage of the open pore volume of the material to the total volume of the material in its natural state.
  • open porosity (M3-M1)/(M3-M2)*100%.
  • M1 is the dry weight of the sample
  • M2 is the weight of the saturated sample in water
  • M3 is the weight of the saturated sample in air.
  • the sampling conditions of the liquid absorbing member 31 before the open porosity test are: the sample has been ultrasonically cleaned, and the appearance is free of pollution, obvious flaking, cracks and other defects.
  • the open porosity test process is: weigh the dry weight M1 of the liquid absorbing member 31; put the liquid absorbing member 31 in a container, completely immerse the liquid absorbing member 31 with deionized water, and put the container in a vacuum device to vacuum, After vacuuming to -100kPa for 5 minutes, take out the liquid suction part 31 after returning to normal pressure; put the liquid suction part 31 into the water, weigh the saturated water weight M2 of the liquid suction part 31; take the liquid suction part 31 out of the water, Wipe off the excess water on the surface of the liquid absorbing member 31 with a liquid absorbing member saturated with water; weigh the saturated empty weight M3 of the liquid absorbing member 31; calculate the open porosity.
  • the above-mentioned vacuuming equipment adopts the VP225 vacuuming system, the Sartorius ENTRIS124-1S analytical balance is used for weighing, and the tweezers are used when transferring the suction part 31.
  • test environment conditions are: indoor temperature at 25 ⁇ 1°C, humidity at 50-70RH%, with drainage facilities, clean environment without smoke and dust, and no mechanical vibration sources and electromagnetic interference sources around.
  • test results of the liquid absorbing member 31 prepared in Examples 1-5 and the liquid absorbing member 31 of the comparative example are shown in Table 1.
  • Each example and the comparative example are subjected to 5 sampling tests, and the calculation of the examples 1-5 and the comparative example
  • the average value of the dry empty weight, the average value of the saturated water weight, and the average value of the saturated empty weight of the proportions were calculated to obtain the average value of the open porosity of Examples 1-5 and Comparative Examples.
  • the open porosity of the liquid absorbing member 31 prepared in Examples 1-5 ranges from 55 to 65%. Due to the mutual restriction between the open porosity and the strength of the liquid absorbing member 31, the more open porosity is High, the strength of the liquid absorbing member 31 decreases exponentially, while the open porosity of the liquid absorbing member 31 affects the oil delivery efficiency of the liquid absorbing member 31 and the uniformity of the e-liquid supply. Therefore, the present invention is ensuring that the liquid absorbing member 31 Under the premise of strength of 31 and oil delivery efficiency, the open porosity of the prepared liquid absorbing member 31 is between 55 and 65%, which not only guarantees the oil delivery efficiency, but also the strength of the liquid absorbing member 31. The open porosity of the liquid member 31 is relatively low, only 53.25%.
  • the pore size and pore size distribution of the liquid absorbing member 31 prepared in Example 1 were tested by mercury intrusion method.
  • the principle of the mercury intrusion method is to use the characteristic that mercury does not infiltrate the surface of the liquid absorbing member 31, and use a certain pressure to overcome the resistance of the capillary to press the mercury into the pore structure of the liquid absorbing member 31; apply a higher pressure to the mercury to make Mercury enters the pore structure with a smaller pore size; the specific pressure applied to the mercury corresponds to the specific pore size of the pore structure into which the mercury can enter.
  • the amount of mercury pressed into the pore structure of the liquid absorbing member 31 under the specific pressure includes: greater than or It is equal to the pore volume of all pore structures of a certain pore size.
  • the initial minimum pressure applied to mercury corresponds to the initial maximum pore size
  • the measured initial intrusion amount includes: the pore volume of the pore structure with the initial maximum pore size.
  • the first pressure corresponds to the first pore size
  • the measured first intrusion amount includes: the pore volume of all the cavity structures greater than or equal to the first pore size.
  • the difference between the first indentation amount and the initial indentation amount corresponds to the pore volume of the pore structure with the pore diameter range between the initial maximum pore diameter and the first pore diameter.
  • Gradually increasing the pressure applied to the mercury can measure the pore volume of the pore structure in each pore size range of the liquid absorbing member 31. Until the press-in amount no longer increases, the maximum press-in amount at this time includes: the pore volume of all the pore structures in the liquid absorbing member 31.
  • the pore size distribution test result is shown in FIG. 5. It can be seen from FIG. 5 that more than 80% of the pore diameters of the liquid absorbing member 31 prepared in Example 1 of the present invention are concentrated between 14.21 and 20.21 ⁇ m, and the pore size distribution is relatively uniform. However, as measured by the above-mentioned experimental method, the pore size of 316.5% of the absorbing member of the comparative example is concentrated between 20.35 and 27.25 ⁇ m, and the uniformity of the pore size distribution is poor.
  • the oil conduction rate is about to pre-process the liquid absorbing member 31 prepared in Examples 1-5 and the liquid absorbing member 31 of the comparative example into a special vessel containing a fixed amount of e-liquid, and record the e-liquid from each liquid absorbing member 31 The time required for the surface to completely wet the entire liquid absorbing member 31.
  • the pre-treatment conditions of the liquid absorbing member 31 before the test are: placing the liquid absorbing member 31 of Examples 1-5 and the comparative example in a clean watch glass, placing it in an electric heating blast drying oven preset at 120°C, and heating Take it out after 15 minutes and place it in a dry dish to cool to room temperature for testing.
  • test environment conditions are: indoor temperature is 25 ⁇ 1°C, humidity is 40-70RH%, the environment is clean and free of smoke and dust, and there are no mechanical vibration sources and electromagnetic interference sources around.
  • the specific testing process of the oil conduction rate is as follows: put the special utensil in the electronic balance and peel off the skin, pour the shaken e-liquid into the special vessel; use tweezers to put the pre-treated liquid absorbing member 31 into the special e-liquid container In the middle, press the stopwatch to start timing when the liquid suction member 31 touches the e-liquid; observe the rise of the e-liquid, wait until the e-liquid completely soaks the liquid suction member 31, press the stopwatch to record the required time.
  • the liquid absorbing member 31 of the present invention is used in an atomizer.
  • the above-mentioned special utensils are metal utensils.
  • the uniform specifications of the special utensils are the outer diameter of 34.00 ⁇ 0.1mm, the inner diameter of 30.00 ⁇ 0.1mm, the height of 9.00 ⁇ 0.1mm, and the depth of 3.00 ⁇ 0.1mm. ;
  • the amount of e-liquid injected is: 1.3000 ⁇ 0.0050g; the tweezers used are made of plastic. Understandably, when the liquid suction member 31 is used in other fields, the size of the special vessel and the amount of e-liquid injected can be adjusted according to the size of the liquid suction member 31.
  • the electronic balance uses Sartorius ENTRIS124-1S analytical balance.
  • the oil-conducting rate test of the present invention is the test of Examples 1-5
  • the liquid absorbing member 31 and the liquid absorbing member 31 of the comparative example are respectively in the three kinds of e-liquids, the three e-liquids are respectively the e-liquid containing 70% mass fraction of vegetable glycerin, and the cigarette containing 60% mass fraction of vegetable glycerin Oil and e-liquid containing 50% mass fraction of vegetable glycerin, the liquid absorbing member 31 of any embodiment and the comparative example were sampled and tested 5 times in the same e-liquid respectively, and the smoking of Examples 1-5 and the comparative example was calculated.
  • the average fluid infusion time of Examples 1-5 was compared with the average fluid infusion time of the comparative example, and the test results are shown in Table 2.
  • the average liquid guiding time of the liquid absorbing member 31 prepared in Examples 1-5 in the e-liquid containing 70% by mass of vegetable glycerin is 64s, and the liquid absorbing member 31 of the comparative example contains 70% by mass.
  • the average value of the liquid guiding time in the e-liquid of fractional vegetable glycerin is 68s.
  • the average oil guiding time of the liquid absorbing member 31 prepared in Examples 1-5 is improved compared with the average value of the liquid absorbing member 31 of the comparative example.
  • the average liquid guiding time of the liquid absorbing member 31 prepared in Examples 1-5 in the e-liquid containing 60% mass fraction of vegetable glycerin is 47s, and the liquid absorbing member 31 of the comparative example contains 60% mass fraction of vegetable glycerin.
  • the average value of the liquid guiding time in the e-liquid is 50s.
  • the average oil guiding time of the liquid absorbing member 31 prepared in Examples 1-5 is increased by 6.00% compared to the average of the liquid absorbing member 31 of the comparative example.
  • the liquid absorbing member 31 prepared in Examples 1-5 has an average liquid guiding time of 33s in the e-liquid containing 50% by mass vegetable glycerin, and the liquid absorbing member 31 of the comparative example is in the e-liquid containing 50% by mass vegetable glycerin.
  • the average value of the liquid guiding time is 38s.
  • the average oil guiding time of the liquid absorbing member 31 prepared in Examples 1-5 is increased by 13.16% compared with the average oil guiding time of the liquid absorbing member 31 of the comparative example, that is, the preparation of the present invention
  • the oil-conducting rate of the liquid absorbing member 31 is greater than the oil-conducting rate of the liquid absorbing member 31 of the comparative example.
  • the pretreatment conditions before the strength test of the liquid absorbing member 31 are as follows: the liquid absorbing member 31 of Example 1 and the comparative example are respectively placed in an oven at 120° C. for 15 minutes, and then placed in a drying dish to cool to room temperature for testing.
  • the procedure for testing the strength of the liquid absorbing member 31 is: weigh the pre-milled mass of the pre-processed liquid absorbing member 31 with an electronic balance, put the liquid absorbing member 31 into a sample bottle, and set the parameters of the collision device, that is, the roller ball mill.
  • the rotating speed of the roller ball mill is 200r/min. Place the sample bottle with the liquid absorbing part 31 in the roller ball mill for collision, and test the liquid absorbing part 31 when the rotation time of the roller ball mill is 0.5h and 1h.
  • Use an electronic balance to weigh the mass of the liquid absorbing member 31 after collision, and calculate the powder loss of the liquid absorbing member 31.
  • the strength of the liquid absorbing member 31 is characterized by the powder loss. The more the powder drops, the more the liquid absorbs The weaker the strength of the member 31, the less the amount of powder dropped, and the higher the strength of the liquid absorbing member 31.
  • the electronic balance uses Sartorius ENTRIS124-1S analytical balance. Before weighing the mass of the absorbing part 31 after the collision with the electronic balance, it is necessary to purge the absorbing part 31 with an air gun to remove the absorbing part. The floating powder on the surface of 31 improves the measurement accuracy.
  • the environmental conditions during the test are as follows: the indoor temperature is 25 ⁇ 1°C, the humidity is 40-70RH%, the environment is clean and free of smoke and dust, and there are no mechanical vibration sources and electromagnetic interference sources around.
  • the liquid absorbing member 31 provided by the present invention is mixed with a forming aid by selecting an appropriate ratio of premix, and more than 80% of the pores in the liquid absorbing member 31 are concentrated between 14.21 and 20.21 ⁇ m.
  • the liquid absorbing member 31 not only has a relatively high High liquid conduction rate, and the strength of the liquid absorbing member 31 is relatively high.
  • the method for preparing the liquid absorbing member 31 provided by the present invention is to prepare a die-casting material by selecting a suitable ratio of premix and forming aids, and then die-casting, degumming and sintering to prepare the liquid absorbing member 31.
  • the product of the prepared liquid absorbing member 31 is qualified High rate, and the obtained liquid absorbing member 31 has high strength, uniform pore size distribution, and high oil conduction rate.
  • polymethyl methacrylate with a sphericity of 0.9 to 0.95 is selected as the pore forming agent, and the particle size of the pore forming agent is 15 to 70 ⁇ m.
  • the pore forming agent is uniformly and fully discharged from the ceramic body to form The pore structure of the ceramic body has a uniform pore size distribution.
  • glass powder with a lower glass transition temperature and viscous flow temperature is used, so that the ceramic body can be sintered at a lower temperature, and the glass powder plays a role of low-temperature bonding, which can improve the strength without destroying the pore formation.
  • Atomizer and aerosol generating device embodiment 1 Atomizer and aerosol generating device embodiment 1
  • the first embodiment of the atomizer and the aerosol generating device of the present invention provides an aerosol generating device.
  • the aerosol generating device includes an atomizer 100 and a power supply device electrically connected to the atomizer 100 ( Figure not shown).
  • the power supply device provides electrical energy to the atomizer 100, and the aerosol-forming substrate in the atomizer 100 is heated and atomized to form smoke under the electric drive of the power supply device. The smoke is sucked by the user. After being mixed with the external atmosphere, it enters into the user's mouth for the user to inhale.
  • the atomizer 100 includes an atomizing component 110, the atomizing component 110 includes a heating component 30, the heating component 30 includes a liquid absorbing member 31 and a heating member 32, the liquid absorbing member 31 is made of porous material,
  • the liquid absorbing member 31 includes an upper end surface 31A and an atomizing surface 31B. The upper end surface 31A and the atomizing surface 31B are arranged opposite to each other.
  • the liquid absorbing member 31 is used to conduct the aerosol-forming substrate from the upper end surface 31A to the atomizing surface 31B, 32 is arranged on the atomizing surface 31B, and the resistance of the area of the heating element 32 where the mass of aerosol to be atomized is larger is greater than the resistance of the area of the heating element 32 where the mass of the aerosol to be atomized is less.
  • the liquid absorbing member 31 conducts the aerosol-forming substrate to the atomizing surface 31B, so that the aerosol-forming substrate is atomized to form smoke under the heating action of the heating element 32, and the smoke is for the user to inhale.
  • the heating component 30 of the present invention when the aerosol-forming substrate is conducted from the upper end surface 31A to the atomizing surface 31B and is in contact with the heating element 32, the resistance of the area of the heating element 32 that is in contact with a larger amount of aerosol-forming substrate is large, and it generates heat. After the element 32 is energized, the area generates relatively more heat, achieving the purpose of timely and sufficient atomization, avoiding the leakage of the aerosol-forming matrix, and at the same time, the resistance of the area of the heating element 32 that is in contact with a smaller amount of aerosol-forming matrix is small After the heating element 32 is energized, the heat generated in this area is relatively small, which avoids the occurrence of dry burning due to large heat generation. In this way, each area on the heating element 32 can adaptively generate heat according to the mass of the aerosol forming base to meet the needs of atomization, effectively avoiding liquid leakage and dry burning.
  • the upper end surface 31A of the liquid absorbing member 31 is recessed with a liquid inlet groove 311.
  • the liquid inlet groove 311 is used for contacting the aerosol forming substrate, and the aerosol forming substrate enters the liquid inlet groove 311 and then is absorbed by the liquid sucking member. After being absorbed by 31, it is transferred to the atomizing surface 31B.
  • the aerosol-forming matrix entering the liquid inlet groove 311 is simultaneously conducted to the inside of the liquid absorbing member 31 via the groove bottom wall of the liquid inlet groove 311 and the groove side wall of the liquid inlet groove 311.
  • the liquid inlet groove 311 Since the liquid inlet groove 311 is provided, the thickness of the liquid-absorbing member 31 corresponding to the liquid inlet groove 311 is reduced, and the aerosol-forming matrix corresponding to the bottom wall of the liquid inlet groove 311 is conducted from the upper end surface 31A to the atomization surface 31B. Therefore, the portion on the atomizing surface 31B corresponding to the liquid inlet groove 311 has a high liquid-conducting efficiency, and the mass of aerosol-forming base conducted to this portion per unit time is relatively high.
  • the parts on the liquid absorbing member 31 other than the corresponding liquid inlet groove 311 mainly rely on the groove side wall of the liquid inlet groove 311 to conduct to the atomizing surface 31B, and the conduction path of the aerosol forming matrix to the atomizing surface 31B is relatively long, so The part on the atomizing surface 31B that is staggered into the liquid groove 311 has a low liquid-conducting efficiency, and the mass of aerosol-forming base conducted to this part in a unit time is low.
  • the heating element 32 includes a first heating portion 321 and a second heating portion 322.
  • the first heating portion 321 corresponds to the position of the liquid inlet groove 311, and the resistance of the first heating portion 321 is greater than the resistance of the second heating portion 322.
  • the heating value of the first heating portion 321 is greater than the heating value of the second heating portion 322 per unit time.
  • the heating value is relatively large
  • the first heating portion 321 meets the atomization requirement of a larger amount of aerosol-forming substrate and avoids liquid leakage, while the second heating portion 322 with a smaller amount of heat generation meets the atomization requirement of a smaller amount of aerosol-forming substrate, thereby Effectively avoid dry burning.
  • the first heating portion 321 also has two, Two first heating parts 321 are respectively connected to two opposite sides of the second heating part 322, and one first heating part 321 corresponds to a position of one liquid inlet groove 311.
  • the aerosol-forming substrate can be simultaneously absorbed through both sides of the liquid absorbing member 31, ensuring uniform atomization on both sides of the liquid absorbing member 31.
  • the second heating portion 322 has a substantially oval or circular ring structure
  • the first heating portion 321 has a strip structure bent toward the second heating portion 322, and the first heating portion 321 One end is smoothly transitionally connected with the second heating part 322.
  • the first heating part 321 is bent and arranged to increase the density of the heat generated by the first heating part 321 when the heating element 32 is energized, which is beneficial for the aerosol-forming substrate at the position of the atomizing surface 31B corresponding to the position of the liquid inlet groove 311 to be fully atomized .
  • the two first heating parts 321 are arranged symmetrically with respect to the second heating part 322.
  • the ends of the two first heating portions 321 away from the second heating portion 322 are both provided with a power connection portion 323, and the power connection portion 323 is used to electrically connect the positive and negative electrodes of the power supply device.
  • the current of the power supply device flows through one of the first heating portion 321, the second heating portion 322, and the other first heating portion 321 through one of the electrical connection portions 323 and then flows to the other electrical connection portion 323, Then, returning to the power supply device, in this loop, since the second heating part 322 has a ring structure, the second heating part 322 can be regarded as being connected in parallel between the two first heating parts 321. In this way, the heat generated by the second heat generating portion 322 is further reduced compared to the first heat generating portion 321.
  • the heating power of the first heating part 321 on the heating element 32 is greater than the heating power of any part on the uniform heating element.
  • the heating rate on the first heating portion 321 is greater than the heating rate of the uniform heating element.
  • the heating power is P
  • the length of the heating element 32 and the heating element 32 of the uniform heating element are both L
  • the cross-sectional area of the two heating elements 32 are both S
  • the parallel part of the heating element 32 ie, The length of the heating element 32 of the second heating part 322
  • the current of the heating element 32 is I 1
  • the current of the uniform heating element is I 1
  • the heating power of the heating element 32 on the non-parallel part of the heating element 32 is greater than the heating power of the heating element 32 of the same length as the non-parallel part on the uniform heating element, that is,
  • the heating power density of the non-parallel part of the heating element 32 is greater than the heating power density of any part of the same length as the non-parallel part on the uniform heating element, so that the heating rate of the non-parallel part of the heating element 32 is greater than that of the uniform heating element and the non-parallel part.
  • the heating rate of any part of the same length is greater than the heating power density of any part of the same length.
  • Test condition dry burning in air environment
  • Heating mode After heating for 3S, stop heating for 30S, and circulate 20 times;
  • Heating power 7.5W (the resistance of the heating element 32 is 1.83 ⁇ , and the resistance of the uniform heating element is 0.63 ⁇ );
  • infrared thermal imaging camera temperature measurement real-time data acquisition frequency 0.04s, among which the infrared thermal imaging camera model is FLIR-A655sc high-performance thermal imaging camera;
  • Atomized surface treatment spray black body paint.
  • Test method measure the temperature of five fixed points on the heating element 32 at the same time, and measure the five detection points at the same time point (the five detection points are all on the main heating part of the heating element 32, and for the heating element 32, test The point is not set in the second heating part 322 and the power connection part 323. For a uniform heating element, the temperature of the detection point is not set in the power connection part 323 on both sides) and the highest temperature in the thermal imaging screen to calculate the temperature average value, The time point and the corresponding temperature average value are used as a data point. Record the data of 20 cycles, and then combine and compress the data of 20 cycles into one cycle to obtain the dry-burning temperature test time-temperature curve diagram in FIG. 13. According to the time-temperature graph, the following table 4:
  • Table 4 Heating element 32 heating rate and heating element 32 heating table in each time period
  • the heating element 32 has a heating rate greater than that of the uniform heating element during the two time periods of 0-0.5s and 0.5-1s. In the 0-0.5s when the electric heating is first started, the heating rate is obviously increased.
  • Test conditions the aerosol is added to the liquid absorbing part to form a matrix, and the liquid is sufficiently guided;
  • Heating mode After heating for 3S, stop heating for 30S, and circulate 20 times;
  • Temperature test Infrared thermal imager temperature measurement, real-time data acquisition frequency 0.04s, of which the model of the infrared thermal imager is FLIR-A655sc high-performance thermal imager;
  • Aerosol-forming matrix type standard smoke oil, similar to 50% VG50% PG.
  • Test method the same as the test method in the dry burning temperature test section above, so I won’t repeat it here.
  • Table 5 Heating element 32 heating rate and heating element 32 heating table in each time period
  • the heating element 32 has a heating rate of 0-0.64s and 0.64-1s in the two time periods of 0-0.64s and 0.64-1s. In the 0-0.64s when the electric heating was first started, the heating rate increased significantly.
  • the non-parallel part has a faster heating rate, which can promptly and fully atomize a larger amount of aerosol to form a matrix, and prevent the aerosol from leaking.
  • the upper end surface 31A of the liquid absorbing member 31 of the present invention is recessed and formed with a groove 312, and the second heating portion 322 corresponds to the position of the groove 312.
  • the groove 312 By providing the groove 312, the thickness at the position of the liquid absorbing member 31 corresponding to the groove 312 is reduced.
  • the heat capacity of the corresponding position of the groove 312 is less, thereby increasing the groove
  • the heating rate of the position corresponding to 312 improves the atomization efficiency at the position corresponding to the second heating portion 322 on the atomizing surface 31B.
  • the groove 312 reduces the thickness of the local position of the liquid absorbing member 31 and reduces the overall heat capacity of the liquid absorbing member 31, thereby enabling the liquid absorbing member 31 to quickly heat up when the heating element 32 is energized, ensuring timely atomization.
  • the two liquid inlet grooves 311 are symmetrically arranged on opposite sides of the groove 312.
  • the liquid inlet groove 311 and the groove 312 are spaced apart, and the electrical connection portion 323 corresponds to the position of the area between the liquid inlet groove 311 and the groove 312 that is not thinned, and the electrical connection portion 323 is used for
  • the electrode column is provided to abut to achieve electrical connection. Since the electrical connection portion 323 is staggered from the liquid inlet groove 311 and the groove 312, when the electrode column abuts on the electrical connection portion 323, the liquid suction member 31 corresponds to The portion of the electrical connection portion 323 does not have the risk of breaking due to insufficient strength due to the reduced thickness.
  • a gas passage 313 is provided in the liquid absorbing member 31. Specifically, one end of the gas passage 313 penetrates the bottom wall of the groove 312, the other end of the gas passage 313 penetrates the atomizing surface 31B, and the second heating part 322
  • the ring is arranged on the outer periphery of the air passage 313, so as to make up for the strength loss of the liquid suction member 31 due to the opening of the air passage 313.
  • the smoke formed by the atomization of the aerosol-forming substrate flows in through the end of the air passage 313 through the atomization surface 31B under the suction action of the user, passes through the air passage 313 and the groove 312, and is sucked by the liquid.
  • the upper end surface 31A of the piece 31 flows out, and finally enters the user's mouth.
  • the cross section of the groove 312 is in the shape of a waist circle
  • the cross section of the air passage 313 is in the shape of an ellipse.
  • the upper end surface 31A and the atomizing surface 31B are parallel to each other.
  • the direction of the atomizing surface 31B facing the upper end surface 31A is defined as the first direction of the liquid absorbing member 31, and the liquid absorbing member 31 is along the first direction.
  • the outer contour shape of any transverse intercepting plane is a circle, an ellipse or a polygon, etc., which is not limited here.
  • the liquid inlet groove 311 and the groove 312 are both recessed on the upper end surface 31A, and the distance from the atomizing surface 31B to the upper end surface 31A of the liquid absorbing member 31 along the first direction of the liquid absorbing member 31 is the height h of the liquid absorbing member 31 (Unit: mm), the depth of the groove 312 along the first direction is H (unit: mm), where 0.3 ⁇ H/h ⁇ 0.5.
  • the guide is improved Liquid efficiency.
  • the liquid absorbing member 31 further includes a connecting surface 31C connected between the upper end surface 31A and the atomizing surface 31B, and the connecting surface 31C includes a first end surface 31D and a second end surface 31E.
  • the third end surface 31F and the fourth end surface 31G wherein the first end surface 31D and the third end surface 31F are symmetrically arranged, and the second end surface 31E and the fourth end surface 31G are symmetrically arranged.
  • the first end surface 31D and the third end surface 31F are both flat and parallel to each other, and the second end surface 31E and the fourth end surface 31G are both cambered arc surfaces.
  • One of the liquid inlet grooves 311 is arranged close to the first end surface 31D, and the other liquid inlet groove 311 is arranged close to the third end surface 31F, and the center lines of the two liquid inlet grooves 311 are located between the second end surface 31E and the fourth end surface 31G. On the plane of symmetry, this ensures that the conduction rates of the two ends corresponding to the first end surface 31D and the third end surface 31F on the liquid absorbing member 31 are consistent or tend to be consistent, which is beneficial to the uniformity of the conduction of the aerosol-forming matrix throughout the liquid absorbing member 31 .
  • the axes of the groove 312 and the air passage 313 are both collinear with the central axis of the liquid suction member 31 along the first direction, and the cross-sectional area of the groove 312 is larger than the cross-sectional area of the air passage 313.
  • the radius of the liquid inlet groove 311 is r
  • the distance from the first end surface 31D to the center axis of the liquid inlet groove 311 adjacent to it is c1
  • the first end surface 31D is to the center of the liquid absorbing member 31
  • the axis distance is c2
  • the distance from the first end surface 31D to the third end surface 31F is c3
  • the maximum distance from the second end surface 31E to the fourth end surface 31G is k1
  • the length of the groove 312 is c4
  • the groove 312 is The dimension in the width direction is k2, the long axis of the air passage 313 is a, and the short axis of the air passage 313 is b.
  • r 0.75mm
  • c1 1.5mm
  • c2 5.7mm
  • c3 11.4mm
  • k1 4.1mm
  • c4 4mm
  • k2 2.5mm
  • a 2.4mm
  • b 1.8mm.
  • the liquid absorbing member 31 is made of porous ceramic.
  • the porous ceramic has high temperature resistance relative to the fiber cotton material, which can effectively prevent the liquid absorbing member 31 from being scorched and improve the smoking taste of the user. Understandably, the liquid absorbing member 31 may also be porous graphite or foamed metal.
  • the heating element 32 has a flat structure.
  • the heating element 32 can be a heating coating, a heating element 32 or a heating sheet, etc., wherein the heating coating can be coated on the atomizing surface 31B by a thick film process or a thin film process; the heating element 32 It can be formed on the atomization surface 31B by a laser activation rapid metallization process; the heating sheet can be installed on the atomization surface 31B by other auxiliary mounting structures, including but not limited to screws, bolts, buckle structures, etc., In addition, the heating sheet can also be embedded on the atomizing surface 31B in the form of an insert.
  • the atomization assembly 110 further includes an atomization support 21, an atomization base 22, and an atomization cavity 221.
  • the atomization support 21 and the atomization base 22 are connected in cooperation, and the atomization cavity 221 is formed in the atomization
  • the heating element 30 is arranged between the atomization support 21 and the atomization base 22, and the smoke generated by the heating element 30 heating the aerosol forming substrate is filled in the atomization cavity 221.
  • the atomization base 22 is generally a hollow cylindrical structure with an opening at the upper end.
  • the heating element 30 is installed in the upper end of the atomization base 22.
  • the space in the atomization base 22 below the heating element 30 constitutes the atomization cavity 221, and the atomization surface 31B
  • the heating element 32 is disposed close to the atomization cavity 221, and the atomization cavity 221 is in communication with the air passage 313.
  • the mist formed by the atomization on the atomization surface 31B is filled in the atomization cavity 221.
  • the bottom of the atomization base 22 is provided with an air inlet 222, which is in communication with the atomization cavity 221 and the external atmosphere.
  • the air inlet 222 is used for the external air to enter the atomization cavity 221 under suction. Inside. In this embodiment, there are two air inlets 222, and the two air inlets 222 are symmetrically arranged on both sides of the atomization base 22.
  • a sealing member 23 is erected between the inner side wall of the atomizing base 22 and the outer side wall of the liquid absorbing member 31 of the heating assembly 30, and the sealing member 23 is made of a sealing material such as silica gel or rubber.
  • the atomization support 21 is installed at the open end of the atomization base 22.
  • the atomization support 21 is provided with a liquid inlet 211, and the liquid inlet 211 is correspondingly communicated with the liquid inlet groove 311.
  • the aerosol forming matrix passes through the liquid inlet 211 It flows through the liquid inlet groove 311 and is absorbed by the liquid absorbing member 31.
  • the atomization holder 21 is also provided with an air outlet groove 212, and the air outlet groove 212 is correspondingly connected with the groove 312.
  • the air outlet groove 212 is a conical groove, wherein the large mouth end of the air outlet groove 212 is connected to the groove 312. Corresponding to connectivity.
  • the smoke in the atomization chamber 221 first quickly passes through the air passage 313 with a smaller cross-section. Since the cross-sectional area of the groove 312 is larger than the cross-sectional area of the air passage 313, it passes through the air passage 313. The velocity of the airflow entering the groove 312 decreases, and then the velocity of the airflow steadily increases when passing through the inclined surface of the air outlet groove 212, so that the airflow entering the user's mouth is gentle, and the user experience is improved.
  • the atomization assembly 110 also includes an electrode column 24, the electrode column 24 is installed at the lower end of the atomization base 22, there are two electrode columns 24, one electrode column 24 corresponds to the position of the electrical connection part 323, when the heating assembly 30 is installed in place After that, one end of the electrode column 24 resists the corresponding electrical connection portion 323.
  • the edge position of the liquid suction member 31 is simultaneously subjected to the squeezing force of the top of the electrode column 24 and the resisting force of the bottom of the atomizing holder 21, the squeezing force and the resisting force of the liquid absorbing member 31 are balanced with each other, and the resultant force is zero. Therefore, it is avoided that torque is applied to the liquid absorbing member 31, thereby preventing the liquid absorbing member 31 from being deformed or even broken.
  • the atomizer 100 also includes a liquid storage member 10, and the liquid storage member 10 is provided with a liquid storage cavity 101 and an air outlet channel 102 that are isolated from each other. To the user's mouth.
  • the atomization component 110 is installed at one end of the liquid storage member 10, the liquid storage cavity 101 is connected to the liquid inlet groove 311, the gas outlet channel 102 is provided on the other side of the heating component 30 relative to the atomization cavity 221, and the gas inlet end of the gas outlet channel 102 It communicates with the air passage 313.
  • the atomizer 100 further includes an air inlet pipe 25, the air inlet end of the air inlet pipe 25 communicates with the outside atmosphere, and the air outlet end of the air inlet pipe 25 extends to the air inlet end of the air outlet passage 102.
  • one air flow enters the atomization cavity 221 through the air inlet 222 and is mixed with the smoke.
  • the smoke mixture with a higher temperature enters the air outlet channel 102 through the air passage 313, and at the same time, another air flow
  • the inlet end of the inlet pipe 25 passes through the inlet pipe 25 and then flows out from the outlet end of the inlet pipe 25, and then enters the outlet passage 102.
  • the temperature of the gas entering the outlet passage 102 is compared with that of the passage 313.
  • the temperature of the gas entering the gas outlet channel 102 is low.
  • the above two airflows are mixed at the inlet end of the outlet channel 102, and the higher temperature smoke is mixed with the lower temperature air flowing out of the inlet pipe 25, so that the smoke is fully condensed, and finally the smoke particles flowing out through the outlet end of the outlet channel 102 Larger, it increases the humidity of the smoke, which in turn improves the smoking taste. In addition, because the external atmosphere has a cooling effect on the smoke, it is ensured that the temperature of the airflow entering the user's mouth will not be too high, and the situation of scalding the user is avoided.
  • the air inlet pipe 25 is arranged on the atomization base 22, the air inlet pipe 25 is a straight pipe, the air outlet channel 102 is a straight channel, the central axis of the air inlet pipe 25 and the central axis of the air outlet channel 102 are collinear, and
  • the air inlet pipe 25 passes through the liquid suction member 31 of the heating assembly 30 through the air passage 313.
  • the outer pipe diameter of the air inlet pipe 25 is smaller than the cross-sectional size of the air passage 313, so that the passage wall of the air passage 313 and the air inlet pipe 25 A gap is formed between the outer walls (not shown in the figure).
  • the inlet end of the inlet pipe 25 is connected to the bottom of the atomization base 22, and the bottom of the atomization base 22 is also provided with an inlet hole 223 communicating with external air, and the inlet pipe 25 communicates with the inlet hole 223 correspondingly.
  • the smoke in the atomization cavity 221 flows to the inlet end of the outlet channel 102 after passing through the gap, and at the same time, external air flows to the inlet end of the outlet channel 102 via the inlet pipe 25 under suction.
  • the air intake pipe 25 is arranged vertically. It is understandable that in other embodiments not shown, the air intake pipe 25 may also be horizontally arranged.
  • the air intake pipe 25 is formed by the side wall of the atomization base 22. It extends above the heating element 30 and the outlet end of the inlet pipe 25 is located at the inlet end of the outlet passage 102. The inlet end of the inlet pipe 25 communicates with the outside atmosphere.
  • the inlet pipe 25 may be made of hard material (for example, , Stainless steel, copper, etc.), can also be made of soft materials (for example, rubber or silica gel).
  • the arrangement of the air inlet pipe 25 and its material are not limited, as long as the air inlet end of the air inlet pipe 25 communicates with the outside atmosphere, and the air outlet end of the air inlet pipe 25 extends to the air inlet end of the air outlet channel 102.
  • the atomization cavity 221 is disposed below the heating assembly 30.
  • the smoke in the atomization cavity 221 can enter the air outlet channel 102 after passing through the heating assembly 30.
  • the upper atomization cavity 221 is arranged inside the heating component. At this time, the smoke is formed inside the heating component 30, and the smoke does not need to pass through The bottom of the heating component can flow directly into the air outlet channel 102.
  • the air inlet pipe 25 can also be provided to introduce the external air to the inlet end of the air outlet channel 102 and mix with the smoke. To improve the effect of condensation.
  • the heating element can be passed through from the bottom of the heating element, or not through the heating element. It is only necessary to make the atomization cavity 221 communicate with the air inlet end of the air outlet channel 102, and the air inlet end of the air inlet pipe 25 is connected to the outside. If the atmosphere is connected, the outlet end of the inlet pipe 25 extends to the inlet end of the outlet passage 102.
  • the liquid storage member 10 includes a housing 11 and a vent tube 12 housed in the housing 11.
  • the liquid storage cavity 101 is formed by the inner cavity of the housing 11, and the air outlet channel 102 is formed by the inner cavity of the vent tube 12.
  • the atomization assembly 110 is installed in the lower end of the housing 11, the upper end of the vent tube 12 is connected to the top of the housing 11, the lower end of the vent tube 12 is connected to the atomization support 21, and the air outlet channel 102 is connected to the small mouth end of the air outlet groove 212.
  • the housing 11 and the vent tube 12 can also be integrally formed.
  • a sealing sleeve 26 is installed between the bracket 21 and the housing 11 and the vent pipe 12, and the sealing sleeve 26 can be made of a sealing material such as silica gel or rubber.
  • the liquid storage member 10 also includes a cigarette holder 13, which is sleeved on the outside of the upper end of the housing 11.
  • the cigarette holder 13 is provided with a smoke outlet 131, which communicates with the air outlet of the air outlet channel 102, and the smoke outlet 131 is for the user to smoke. Suction operation.
  • the power supply device is installed at one end of the liquid storage member 10 close to the atomization assembly 110.
  • the power supply device includes a battery.
  • the resistance of the heating element 32 on the atomizing surface 31B where the mass of the aerosol to be atomized is larger is greater than that of the heating element 32
  • the resistance of the area with low mass of the aerosol forming base to be atomized enables each area on the heating element 32 to adaptively generate an appropriate amount of heat according to the amount of the aerosol forming base to meet the needs of atomization, effectively avoiding liquid leakage and dry burning
  • the liquid absorbing member 31 made of porous material has high temperature resistance, which can effectively prevent the liquid absorbing member 31 from being scorched, and improve the user's smoking taste.
  • the outlet end of the inlet pipe 25 extends to the inlet end of the outlet passage 102, so that the higher temperature smoke and the lower temperature outside air are mixed at the inlet end of the outlet passage 102, so that the smoke Fully condenses to form larger smoke particles, which has a good condensation effect, further improves the smoking taste and improves user experience.
  • the aerosol generating device provided by the first embodiment of the atomizer and the aerosol generating device of the present invention has all the technical features of the above-mentioned atomizer 100, so it has the same technical effect as the above-mentioned atomizer 100.
  • Atomizer and aerosol generating device embodiment 2
  • the second embodiment of the atomizer and aerosol generating device of the present invention provides an atomizer, the atomizer and the atomizer and the atomizer 100 of the first embodiment of the aerosol generating device The difference is that the structure of the heating component 30 is different.
  • the outer contour shape of the liquid inlet groove 311 along the first direction arbitrarily cross-sectional plane is circular, and in this embodiment, the liquid inlet groove 311 extends along the
  • the outer contour shape of any transversely intercepted plane in the first direction is a "concave” structure, the recessed parts of the two “concave” structures are arranged oppositely, and the recessed part of the "concave” structure is arc-shaped.
  • the radius of the arc is r3, the distance between the center of the arc and the third end surface 31F that is close to it is t7, and the distance between the liquid inlet groove 311 and the third end surface 31F that is close to it is t8.
  • r3 0.8mm
  • t7 2.7mm
  • t8 0.6mm.
  • the transverse cross section of the liquid inlet groove 311 is a "concave" structure.
  • the cross section The area of the side wall of the liquid inlet groove 311 having a "concave” structure is relatively increased. In this way, when the aerosol-forming substrate enters the liquid inlet groove 311, the conduction area of the aerosol-forming substrate to the atomizing surface 31B is increased. In this way, The mass of the aerosol-forming base conducted to the atomizing surface 31B per unit time is relatively large, which improves the efficiency of liquid conduction.
  • the size of the heating element 32 is also adjusted accordingly.
  • the radius r2 of the electrical connection part 323 0.45mm
  • the distance t6 1.2mm from the first heating part 321 to the third end face 31F that is close to it.
  • the positions of the liquid grooves 311 correspond to each other, so that the first heating portion 321 with a larger heat generation meets the atomization requirement of a larger amount of aerosol-forming substrate and avoids liquid leakage, while the second heating portion 322 with a smaller heat generation satisfies A smaller amount of aerosol forms the atomization requirement of the substrate, thereby effectively avoiding dry burning.
  • the top of the sealing member 23 extends downward to form a plug-in portion 231, and the plug-in portion 231 is tightly inserted into the groove 312 of the liquid absorbing member 31.
  • the sealing member 23 and the liquid absorbing member 31 are added. The sealing between the two prevents the aerosol-forming matrix from entering the groove 312.
  • the second embodiment of the atomizer and aerosol generating device also provides an aerosol generating device with the above-mentioned atomizer. Because it has all the technical features of the above-mentioned atomizer, it has the same features as the above-mentioned atomizer. Technical effect.

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Abstract

Un élément d'absorption de e-liquide et son procédé de préparation sont divulgués. L'élément d'absorption de e-liquide est préparé avec de la terre à diatomées, de la poudre de verre et un agent porogène au moyen d'un procédé de frittage. Plus de 80 % des tailles de pores dans l'élément d'absorption de e-liquide sont concentrés entre 14,21 µm et 20,21 µm. La porosité ouverte de l'élément d'absorption de e-liquide est de 55 à 65 %. L'élément d'absorption de e-liquide a une vitesse d'écoulement de e-liquide supérieure et une résistance supérieure. Un ensemble de chauffage et son procédé de préparation sont également divulgués.
PCT/CN2021/092573 2020-05-27 2021-05-10 Élément d'absorption de e-liquide et son procédé de préparation, et ensemble de chauffage et son procédé de préparation WO2021238627A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN202010463472.6A CN113729294B (zh) 2020-05-27 2020-05-27 吸液件及其制备方法、发热组件及其制备方法
CN202010463503.8 2020-05-27
CN202010463480.0A CN113729314A (zh) 2020-05-27 2020-05-27 雾化器及气溶胶发生装置
CN202010463480.0 2020-05-27
CN202010463503.8A CN113729315A (zh) 2020-05-27 2020-05-27 发热组件及雾化组件、雾化器、气溶胶发生装置
CN202010463472.6 2020-05-27

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CN114259091A (zh) * 2021-12-30 2022-04-01 深圳市大迈发展有限公司 雾化结构件、雾化器及气溶胶生成装置
CN115256970A (zh) * 2022-08-31 2022-11-01 深圳市鑫霖美科技有限公司 自动化雾化模组制作机构及自动化雾化模组制作设备
EP4194038A1 (fr) * 2021-12-10 2023-06-14 Shenzhen Moore Vaporization Health & Medical Technology Co., Ltd. Procédé de reconnaissance d'état de vaporisation, appareil, dispositif électronique et support d'informations

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CN209498584U (zh) * 2018-12-26 2019-10-18 深圳市合元科技有限公司 电子烟雾化器及电子烟
CN110074463A (zh) * 2019-05-14 2019-08-02 东莞市东思电子技术有限公司 一种电子烟油雾化芯用微孔陶瓷厚膜发热元件及其制作方法
CN111067152A (zh) * 2019-12-18 2020-04-28 深圳尊一品科技有限公司 一种气溶胶成分均匀的雾化装置及其应用
CN111153686A (zh) * 2020-01-14 2020-05-15 东莞市陶陶新材料科技有限公司 电子烟用多孔陶瓷、含该多孔陶瓷的雾化芯及其制备方法
CN212464919U (zh) * 2020-05-27 2021-02-05 东莞市维万特智能科技有限公司 发热组件及雾化组件、雾化器、气溶胶发生装置
CN212520807U (zh) * 2020-05-27 2021-02-12 东莞市维万特智能科技有限公司 雾化器及气溶胶发生装置

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EP4194038A1 (fr) * 2021-12-10 2023-06-14 Shenzhen Moore Vaporization Health & Medical Technology Co., Ltd. Procédé de reconnaissance d'état de vaporisation, appareil, dispositif électronique et support d'informations
CN114259091A (zh) * 2021-12-30 2022-04-01 深圳市大迈发展有限公司 雾化结构件、雾化器及气溶胶生成装置
CN114259091B (zh) * 2021-12-30 2023-10-13 深圳市大迈发展有限公司 雾化结构件、雾化器及气溶胶生成装置
CN115256970A (zh) * 2022-08-31 2022-11-01 深圳市鑫霖美科技有限公司 自动化雾化模组制作机构及自动化雾化模组制作设备

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