CN113854641A - Heating element based on monocrystalline silicon permeation structure, preparation method and electronic cigarette - Google Patents
Heating element based on monocrystalline silicon permeation structure, preparation method and electronic cigarette Download PDFInfo
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- CN113854641A CN113854641A CN202111300268.3A CN202111300268A CN113854641A CN 113854641 A CN113854641 A CN 113854641A CN 202111300268 A CN202111300268 A CN 202111300268A CN 113854641 A CN113854641 A CN 113854641A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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Abstract
The invention relates to the technical field of electronic cigarettes, in particular to a heating element based on a monocrystalline silicon permeation structure, which comprises a heating sheet body, wherein a permeation region is formed on the heating sheet body through etching or photoetching, a heating circuit is arranged on the lower side of the permeation region of the heating sheet body, a control circuit is formed on one side of the monocrystalline silicon on the heating circuit through photoetching, the control circuit is electrically connected with the heating circuit, and the permeation region is provided with a permeation structure for liquid and gas to pass through; the invention adopts the porous silicon heating sheet formed by photoetching or etching micropores on monocrystalline silicon, adopts the heating sheet body processed and formed by the monocrystalline silicon wafer in the working process, and forms a porous penetration structure on the heating sheet body through the processes of etching or photoetching and the like for the smoke penetration of the electronic cigarette.
Description
Technical Field
The invention relates to the technical field of electronic cigarettes, in particular to a heating element based on a monocrystalline silicon permeation structure, a preparation method of the heating element and an electronic cigarette.
Background
The electronic cigarette is mainly used for quitting and replacing cigarettes, can simulate the taste of the cigarettes, but can not release tar, nicotine and second-hand smoke harmful to human bodies when the electronic cigarette is smoked, and can improve the smoking quitting success rate of nicotine replacement therapy, so that the electronic cigarette is popular in the market and is valued by the nation soon. The electronic atomized cigarette has the principle that a smoke agent is heated and gasified on an electric heating element of an atomization system to form high-temperature steam and the high-temperature steam is sprayed out of an opening end, and the sprayed steam expands and condenses into smoke-shaped micro liquid drops in the atmosphere, so that smoke similar to the traditional cigarette is formed.
Traditional electron cigarette structure generally includes host computer and cigarette bullet, the host computer is used for power supply and control connection cigarette bullet, set up tobacco tar and atomization structure in the cigarette bullet, host computer control atomization structure realizes the atomizing of tobacco tar to the tobacco tar heating, need use the heating element to be used for heating the tobacco tar when the electron cigarette heats the atomizing to the tobacco tar, current atomization structure generally all is the ceramic atomization or the cotton core atomizing of adopting, ceramic atomization and cotton core atomizing life are short, the homogeneity of generating heat is poor, the influence is inhaled and is eaten the taste.
Disclosure of Invention
In order to solve the problems, the invention provides a porous silicon heating sheet formed by photoetching or etching micropores through monocrystalline silicon, wherein in the working process, a heating sheet body formed by processing a monocrystalline silicon wafer is adopted, a porous penetration structure is formed on the heating sheet body through the processes of etching or photoetching and the like, and the heating element based on the monocrystalline silicon penetration structure is used for tobacco tar penetration of an electronic cigarette, and a preparation method and the electronic cigarette.
The technical scheme adopted by the invention is as follows: the utility model provides a heating element based on monocrystalline silicon osmotic structure, includes the piece body that generates heat, it has the infiltration district to generate heat to be formed through etching or photoetching on the piece body, the piece body that generates heat is located the downside of infiltration district is equipped with the heating circuit, monocrystalline silicon is located one side of heating circuit and has control circuit through the photoetching shaping, control circuit and heating circuit electric connection, the infiltration district is seted up and is used for the osmotic structure that liquid and gas pass through.
The further improvement of the scheme is that one side of the heating sheet body, which deviates from the heating circuit and the control circuit, is provided with an oil transportation sheet, and the oil transportation sheet is attached to the heating sheet body.
The scheme is further improved in that the oil conveying sheet is made of monocrystalline silicon evenly distributed with porous silicon formed by oil conveying holes, an oil storage cavity is formed in a corresponding permeation region of the oil conveying sheet, oil storage cotton is arranged in the oil storage cavity and is high-temperature-resistant oil storage cotton, and the oil storage cotton comprises a porous cotton cloth layer, a filter layer, a nanofiber oil absorption layer and a nanofiber oil containing layer; the nanofiber oil-holding layer is arranged and combined in different orders, and the nanofiber oil-holding layer or the nanofiber oil-absorbing layer is attached to the heating sheet body; compact pores with the same size are uniformly distributed on the porous cotton cloth layer, the porous cotton cloth layer has certain contractibility and can form folds on the surface, and the nanofiber oil absorption layer is embedded into each fold of the porous cotton cloth layer.
The further improvement of the scheme is that the porous cotton cloth layer comprises a first cotton cloth layer and a second cotton cloth layer, the filter layer comprises a first filter membrane layer and a second filter membrane layer, the porosity of the first filter membrane layer and the porosity of the second filter membrane layer are 50% -60%, and the pore size is 1-10 mu m.
The further improvement of the scheme is that the penetrating structure is formed by micropores which are arranged in a criss-cross mode, the micropores are regularly or irregularly distributed with the heating sheet body, the pore size of the micropores is 80-1600 micrometers, and the micropores are circular, honeycomb or rectangular.
The further improvement of the scheme is that the permeation structure is a permeation gap, the permeation gap is formed in the heating sheet body through etching, and the permeation gap is uniformly distributed in the heating sheet body in an irregular shape.
The further improvement of the scheme is that the control circuit is packaged with a protective film, and the protective film comprises a stripping layer, a cementing layer, a fixing layer and an outer surface layer which are sequentially arranged from inside to outside.
The scheme is further improved in that the outer surface layer is prepared from the following raw materials in parts by weight: 70-90 parts of polyvinyl chloride, 1-4 parts of heat stabilizer, 5-8 parts of titanium dioxide and 2-8 parts of flame retardant, wherein the fixed layer is prepared from the following raw materials in parts by weight: 20-35 parts of plasticizer, 10-15 parts of polyurethane acrylate, 5-8 parts of epoxy acrylate and 5-8 parts of polyester acrylate.
The technical scheme is further improved in that the heat stabilizer is a calcium-zinc composite stabilizer, the flame retardant is a mixture of a dehydration catalyst ammonium polyphosphate, a carbonizing agent pentaerythritol and a foaming agent melamine, and the plasticizer is a mixture of one or more of dioctyl phthalate, tricresyl phosphate and trichloroethyl phosphate.
A method for manufacturing a heating element comprises the following steps:
step S1, selecting a monocrystalline silicon wafer with two polished surfaces, and cleaning and drying the monocrystalline silicon wafer;
step S2, arranging a layer of silicon dioxide on one surface of the dried monocrystalline silicon piece, and precipitating the silicon dioxide to form silicon nitride;
step S3, coating photoresist on the silicon nitride, transferring the pattern of the penetration region to the photoresist through a photoetching machine, and photoetching on the monocrystalline silicon through the photoetching machine to form the penetration region;
step S4, turning over the single crystal silicon, arranging a layer of silicon dioxide, and precipitating the silicon dioxide to form silicon nitride;
step S5, coating a photoresist on the silicon nitride of step S4, editing and transferring the patterns of the heating line and the control circuit to the photoresist by a photolithography machine, and then, heating the heating line and the control circuit by the photolithography machine;
and step S6, removing the photoresist, the silicon dioxide and the silicon nitride, and then attaching a protective film at the position of the control circuit to obtain the heating sheet body.
The protective film is prepared and formed by the following method;
step S11, adding polyvinyl chloride, a heat stabilizer, titanium dioxide and a flame retardant into a stirrer according to the weight components, stirring and mixing, and heating while mixing to form an outer surface layer;
step S12, adding a plasticizer, urethane acrylate, epoxy acrylate and polyester acrylate into a mixer according to the weight components, mixing to form a fixed layer, adding the fixed layer into an extruder, extruding and molding to form a sheet-shaped blank plate, and roughening the upper surface of the blank plate after extrusion;
step S13, coating the outer surface layer on the upper surface of the fixed layer through a coating machine according to the thickness requirement; drying the outer surface layer coated on the upper surface of the fixed layer by a dryer to form an outer surface layer; and coating a cementing layer on the lower surface of the fixed layer according to the thickness requirement, and bonding the stripping layer to obtain the protective film.
In a further improvement of the above scheme, in step S2, the single crystal silicon wafer is oxidized by wet oxygen and dry oxygen in sequence to form a layer of silicon dioxide, the oxidation temperature is controlled below 1100 ℃, and the wet oxygen and dry oxygen time is 5 hours.
An electronic cigarette comprises the heating element based on the monocrystalline silicon infiltration structure.
The invention has the beneficial effects that:
compared with the atomization heating piece of the existing electronic cigarette, the atomization heating piece of the electronic cigarette adopts the porous silicon heating piece formed by monocrystalline silicon photoetching or etching micropores, adopts the heating piece body formed by processing the monocrystalline silicon piece in the working process, and forms the porous penetration structure on the heating piece body through the processes of etching, photoetching and the like, is used for tobacco tar penetration of the electronic cigarette, penetrates the tobacco tar into the heating circuit, and generates heat through the heating circuit, so that the tobacco tar generates atomized gas, the atomization effect is better compared with the atomization effect of an atomization cotton core and a ceramic heating body, the service life is longer, the heating atomization is more uniform and reliable, and the taste of the electronic cigarette for smoking is also ensured. Specifically, a heating sheet body is arranged, a penetration area is formed on the heating sheet body through etching or photoetching, the heating sheet body is located on the lower side of the penetration area and is provided with a heating circuit, one side, located on the heating circuit, of monocrystalline silicon is provided with a control circuit through photoetching forming, the control circuit is electrically connected with the heating circuit, and the penetration area is provided with a penetration structure which can be used for liquid and gas to pass through. A control circuit and a heating circuit are formed on the monocrystalline silicon through photoetching, so that the control and heating are integrated into a whole, and the structure is reliable.
A preparation method of monocrystalline silicon comprises the following steps: step S1, selecting a monocrystalline silicon wafer with two polished surfaces, and cleaning and drying the monocrystalline silicon wafer; step S2, arranging a layer of silicon dioxide on one surface of the dried monocrystalline silicon piece, and precipitating the silicon dioxide to form silicon nitride; step S3, coating photoresist on the silicon nitride, transferring the pattern of the penetration region to the photoresist through a photoetching machine, and photoetching on the monocrystalline silicon through the photoetching machine to form the penetration region; step S4, turning over the single crystal silicon, arranging a layer of silicon dioxide, and precipitating the silicon dioxide to form silicon nitride; step S5, coating a photoresist on the silicon nitride of step S4, editing and transferring the patterns of the heating line and the control circuit to the photoresist by a photolithography machine, and then, heating the heating line and the control circuit by the photolithography machine; and step S6, removing the photoresist, the silicon dioxide and the silicon nitride, and then attaching a protective film at the position of the control circuit to obtain the heating sheet body. The heating sheet of the electronic cigarette is formed by photoetching the monocrystalline silicon through the steps, the processing efficiency is high, the electronic cigarette is suitable for mass production, and the service life of the atomization component of the electronic cigarette is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of a heating element based on a single crystal silicon infiltration structure according to the present invention;
FIG. 2 is a schematic bottom view of the heater element of FIG. 1 based on a single-crystal silicon infiltration structure;
FIG. 3 is a schematic structural diagram of a protective film of the heating element based on a single-crystal silicon penetration structure in FIG. 1;
fig. 4 is a schematic structural diagram of the oil storage cotton of the heating element based on the monocrystalline silicon infiltration structure in fig. 1.
Description of reference numerals: the heating sheet comprises a heating sheet body 1, a penetration region 11, a penetration structure 111, a heating line 12, a control circuit 13, a protective film 131, a peeling layer 132, a cementing layer 133, a fixing layer 134, an outer surface layer 135, an oil delivery sheet 2, an oil storage cavity 21, oil storage cotton 22, a porous cotton cloth layer 221, a first cotton cloth layer 221a, a second cotton cloth layer 221b, a filter layer 222, a first filter membrane layer 222a, a second filter membrane layer 222b, a nanofiber oil absorption layer 223 and a nanofiber oil storage layer 224.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 to 4, a heating element based on a monocrystalline silicon infiltration structure includes a heating sheet body 1, a infiltration region 11 is formed on the heating sheet body 1 by etching or photolithography, a heating line 12 is disposed on the heating sheet body 1 below the infiltration region 11, a control circuit 13 is formed on one side of the monocrystalline silicon on the heating line 12 by photolithography, the control circuit 13 is electrically connected to the heating line 12, and an infiltration structure 111 for liquid and gas to pass through is opened on the infiltration region 11.
Referring to fig. 4, the oil-storing cotton 22 is a high-temperature resistant oil-storing cotton 22, and the oil-storing cotton 22 includes a porous cotton cloth layer 221, a filter layer 222, a nanofiber oil-absorbing layer 223, and a nanofiber oil-containing layer 224; the nanofiber oil containing layer 224 is arranged and combined in different orders, and the nanofiber oil containing layer 224 or the nanofiber oil absorption layer 223 is attached to the heating sheet body 1; dense pores with the same size are uniformly distributed on the porous cotton cloth layer 221, the porous cotton cloth layer 221 has certain contractility and can form wrinkles on the surface, and the nanofiber oil absorption layer 223 is embedded into each wrinkle of the porous cotton cloth layer 221.
In this embodiment, infiltration structure 111 forms for the micropore that vertically and horizontally staggered set up, the micropore is the distribution of regular or irregular form and generates heat piece body 1, the aperture size of micropore is 80 microns ~ 1600 microns, the micropore shape is circular, honeycomb shape or rectangle, adopts microporous structure to permeate to the through-hole that adopts vertically and horizontally staggered to set up carries out the tobacco tar infiltration, and the tobacco tar infiltration is effectual, and heating atomization effect is good.
In another embodiment, the penetrating structure 111 is a penetrating gap formed in the heating sheet body 1 by etching, the penetrating gap is uniformly distributed in the heating sheet body 1 in an irregular shape, and the penetrating gap is used for penetration of the tobacco tar and can also be used for heating and atomizing the tobacco tar.
Referring to fig. 3, the control circuit 13 is packaged with a protective film 131, the protective film 131 includes a peeling layer 132, a glue layer 133, a fixing layer 134 and an outer surface layer 135, which are sequentially arranged from inside to outside, and the outer surface layer 135 is prepared from the following raw materials by weight: 70-90 parts of polyvinyl chloride, 1-4 parts of heat stabilizer, 5-8 parts of titanium dioxide and 2-8 parts of flame retardant, wherein the fixed layer 134 is prepared from the following raw materials in parts by weight: 20-35 parts of plasticizer, 10-15 parts of polyurethane acrylate, 5-8 parts of epoxy acrylate and 5-8 parts of polyester acrylate; the heat stabilizer is a calcium-zinc composite stabilizer, the flame retardant is a mixture of a dehydration catalyst ammonium polyphosphate, a carbonizing agent pentaerythritol and a foaming agent melamine, and the plasticizer is one or a mixture of dioctyl phthalate, tricresyl phosphate and trichloroethyl phosphate; the protective film 131 is used for covering and packaging the control circuit 13, so that the protective effect of the structure is ensured; the outer surface layer 135 and the fixed layer 134 formed by the components have the advantages of reliable structure, strong high-temperature resistance and no toxicity.
A preparation method of monocrystalline silicon comprises the following steps: step S1, selecting a monocrystalline silicon wafer with two polished surfaces, and cleaning and drying the monocrystalline silicon wafer; step S2, arranging a layer of silicon dioxide on one surface of the dried monocrystalline silicon piece, and precipitating the silicon dioxide to form silicon nitride; step S3, coating photoresist on the silicon nitride, transferring the pattern of the penetration region 11 to the photoresist through a photoetching machine, and photoetching on the monocrystalline silicon through the photoetching machine to form the penetration region 11; step S4, turning over the single crystal silicon, arranging a layer of silicon dioxide, and precipitating the silicon dioxide to form silicon nitride; step S5, coating a photoresist on the silicon nitride of step S4, editing the patterns of the heating line 12 and the control circuit 13 by a photo-etching machine, transferring the edited patterns to the photoresist, and then transferring the heating line 12 and the control circuit 13 by the photo-etching machine; step S6, removing the photoresist, silicon dioxide and silicon nitride, and then attaching the protective film 131 to the control circuit 13 to obtain the heating sheet body 1. The heating sheet of the electronic cigarette is formed by photoetching the monocrystalline silicon through the steps, the processing efficiency is high, the electronic cigarette is suitable for mass production, and the service life of the atomization component of the electronic cigarette is prolonged.
The protective film 131 is prepared by the following method;
step S11, adding polyvinyl chloride, a heat stabilizer, titanium dioxide and a flame retardant into a stirrer according to the weight components, stirring and mixing, and heating while mixing to form an outer surface layer 135; step S12, adding a plasticizer, urethane acrylate, epoxy acrylate and polyester acrylate into a mixer according to the weight components, mixing to form a fixed layer 134, adding the fixed layer 134 into an extruder, extruding and molding to form a sheet-shaped blank plate, and roughening the upper surface of the blank plate after extrusion; step S13, coating the outer surface layer 135 on the upper surface of the fixed layer 134 by a coater according to the thickness requirement; drying the outer skin 135 coated on the upper surface of the fixed layer 134 by a dryer to form an outer skin 135; the pellicle film 131 is obtained by coating a bonding layer 133 on the lower surface of the fixing layer 134 and bonding the release layer 132 thereto as required. The protective film 131 prepared by the steps has good protective effect and strong high-temperature resistance of the protective film 131.
In step S2, a layer of silicon dioxide is arranged on the monocrystalline silicon wafer by oxidizing according to the sequence of wet oxygen-dry oxygen, the oxidizing temperature is controlled below 1100 ℃, and the time of both wet oxygen and dry oxygen is 5 h.
According to the invention, the porous silicon heating sheet formed by photoetching or etching micropores of monocrystalline silicon is adopted, in the working process, the heating sheet body 1 formed by processing and forming the monocrystalline silicon sheet is adopted, the porous penetration structure 111 is formed on the heating sheet body 1 through the processes of etching or photoetching and the like, the porous penetration structure is used for the tobacco tar penetration of an electronic cigarette, the tobacco tar penetrates into the heating circuit 12, and the heating circuit 12 generates heat, so that the tobacco tar generates atomized gas, the atomization effect is better compared with that of an atomized cotton core and a ceramic heating element, the service life is longer, the heating atomization is more uniform and reliable, and the taste of the electronic cigarette is ensured. Specifically, a heating sheet body 1 is provided, a penetration region 11 is formed on the heating sheet body 1 through etching or photolithography, a heating line 12 is provided on the lower side of the penetration region 11 of the heating sheet body 1, a control circuit 13 is formed on one side of the monocrystalline silicon on the heating line 12 through photolithography, the control circuit 13 is electrically connected with the heating line 12, and a penetration structure 111 for liquid and gas to pass through is provided on the penetration region 11. A control circuit 13 and a heating circuit 12 are formed on the monocrystalline silicon through photoetching, so that the control and heating are integrated into a whole, and the structure is reliable.
The utility model provides an electron cigarette, the heating element who generates heat above adopting piece body 1 atomizes to the tobacco tar heating, and heating atomization effect is good, long service life.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A heating element based on a monocrystalline silicon infiltration structure is characterized in that: including the heating plate body, be formed with the infiltration district through etching or photoetching on the heating plate body, the heating plate body is located the downside in infiltration district is equipped with the heating circuit, the one side that monocrystalline silicon is located the heating circuit has control circuit through the photoetching shaping, control circuit and heating circuit electric connection, the infiltration district is seted up and is used for the infiltration structure that liquid and gas pass through.
2. The single crystal silicon infiltrated structure-based heating element of claim 1, wherein: the heating sheet body is provided with an oil conveying sheet on the side deviating from the heating circuit and the control circuit, and the oil conveying sheet is attached to the heating sheet body.
3. The single crystal silicon infiltration structure-based heating element of claim 2, wherein: the oil conveying sheet is made of monocrystalline silicon and porous silicon with oil conveying holes uniformly distributed in the monocrystalline silicon, an oil storage cavity is formed in a corresponding permeation region of the oil conveying sheet, oil storage cotton is arranged in the oil storage cavity and is high-temperature-resistant oil storage cotton, and the oil storage cotton comprises a porous cotton cloth layer, a filter layer, a nanofiber oil absorption layer and a nanofiber oil containing layer; the nanofiber oil-holding layer is arranged and combined in different orders, and the nanofiber oil-holding layer or the nanofiber oil-absorbing layer is attached to the heating sheet body; compact pores with the same size are uniformly distributed on the porous cotton cloth layer, the porous cotton cloth layer has certain contractibility and can form folds on the surface, and the nanofiber oil absorption layer is embedded into each fold of the porous cotton cloth layer.
4. The single crystal silicon infiltration structure-based heating element of claim 3, wherein: the porous cotton cloth layer comprises a first cotton cloth layer and a second cotton cloth layer, the filter layer comprises a first filter membrane layer and a second filter membrane layer, the porosity of the first filter membrane layer and the porosity of the second filter membrane layer are 50% -60%, and the pore size is 1-10 microns.
5. The single crystal silicon infiltrated structure-based heating element of claim 1, wherein: the infiltration structure is formed by micropores which are arranged in a criss-cross mode, the micropores are regularly or irregularly distributed with heating sheet bodies, the pore size of the micropores is 80-1600 micrometers, and the micropores are circular, honeycomb or rectangular.
6. The single crystal silicon infiltrated structure-based heating element of claim 1, wherein: the infiltration structure is the infiltration gap, the infiltration gap is through etching shaping in the piece body that generates heat, the infiltration gap is irregular shape equipartition in the piece body that generates heat.
7. The single crystal silicon infiltrated structure-based heating element of claim 1, wherein: the control circuit is packaged with a protective film, the protective film comprises a stripping layer, a cementing layer, a fixed layer and an outer surface layer which are sequentially arranged from inside to outside, and the outer surface layer is prepared from the following raw materials in parts by weight:
70-90 parts of polyvinyl chloride, 1-4 parts of heat stabilizer, 5-8 parts of titanium dioxide and 2-8 parts of flame retardant, wherein the fixed layer is prepared from the following raw materials in parts by weight: 20-35 parts of plasticizer, 10-15 parts of polyurethane acrylate, 5-8 parts of epoxy acrylate and 5-8 parts of polyester acrylate;
the heat stabilizer is a calcium-zinc composite stabilizer, the flame retardant is a mixture of a dehydration catalyst ammonium polyphosphate, a carbonizing agent pentaerythritol and a foaming agent melamine, and the plasticizer is one or a mixture of dioctyl phthalate, tricresyl phosphate and trichloroethyl phosphate.
8. A method for producing a heat-generating component as recited in any one of claims 1 to 7, characterized in that: the method comprises the following steps:
step S1, selecting a monocrystalline silicon wafer with two polished surfaces, and cleaning and drying the monocrystalline silicon wafer;
step S2, arranging a layer of silicon dioxide on one surface of the dried monocrystalline silicon piece, and precipitating the silicon dioxide to form silicon nitride;
step S3, coating photoresist on the silicon nitride, transferring the pattern of the penetration region to the photoresist through a photoetching machine, and photoetching on the monocrystalline silicon through the photoetching machine to form the penetration region;
step S4, turning over the single crystal silicon, arranging a layer of silicon dioxide, and precipitating the silicon dioxide to form silicon nitride;
step S5, coating a photoresist on the silicon nitride of step S4, editing and transferring the patterns of the heating line and the control circuit to the photoresist by a photolithography machine, and then, heating the heating line and the control circuit by the photolithography machine;
and step S6, removing the photoresist, the silicon dioxide and the silicon nitride, and then attaching a protective film at the position of the control circuit to obtain the heating sheet body.
The protective film is prepared and formed by the following method;
step S11, adding polyvinyl chloride, a heat stabilizer, titanium dioxide and a flame retardant into a stirrer according to the weight components, stirring and mixing, and heating while mixing to form an outer surface layer;
step S12, adding a plasticizer, urethane acrylate, epoxy acrylate and polyester acrylate into a mixer according to the weight components, mixing to form a fixed layer, adding the fixed layer into an extruder, extruding and molding to form a sheet-shaped blank plate, and roughening the upper surface of the blank plate after extrusion;
step S13, coating the outer surface layer on the upper surface of the fixed layer through a coating machine according to the thickness requirement; drying the outer surface layer coated on the upper surface of the fixed layer by a dryer to form an outer surface layer; and coating a cementing layer on the lower surface of the fixed layer according to the thickness requirement, and bonding the stripping layer to obtain the protective film.
9. The method of manufacturing a heating element according to claim 8, characterized in that: in the step S2, a layer of silicon dioxide is formed by oxidizing the single crystal silicon wafer according to the sequence of wet oxygen and dry oxygen, the oxidation temperature is controlled below 1100 ℃, and the time for both wet oxygen and dry oxygen is 5 hours.
10. An electronic cigarette, comprising the heating element based on the single crystal silicon infiltration structure of any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111300268.3A CN113854641A (en) | 2021-11-04 | 2021-11-04 | Heating element based on monocrystalline silicon permeation structure, preparation method and electronic cigarette |
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| CN202111300268.3A CN113854641A (en) | 2021-11-04 | 2021-11-04 | Heating element based on monocrystalline silicon permeation structure, preparation method and electronic cigarette |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142468A1 (en) * | 2022-01-26 | 2023-08-03 | 深圳市克莱鹏科技有限公司 | Atomization structure based on porous silicon atomization sheet, and electronic cigarette |
| WO2023142467A1 (en) * | 2022-01-28 | 2023-08-03 | 深圳市克莱鹏科技有限公司 | E-liquid guide structure based on porous silicon atomization sheet, and electronic cigarette |
| WO2023151261A1 (en) * | 2022-02-09 | 2023-08-17 | 深圳市克莱鹏科技有限公司 | E-cigarette based on porous silicon atomization piece |
-
2021
- 2021-11-04 CN CN202111300268.3A patent/CN113854641A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142468A1 (en) * | 2022-01-26 | 2023-08-03 | 深圳市克莱鹏科技有限公司 | Atomization structure based on porous silicon atomization sheet, and electronic cigarette |
| WO2023142467A1 (en) * | 2022-01-28 | 2023-08-03 | 深圳市克莱鹏科技有限公司 | E-liquid guide structure based on porous silicon atomization sheet, and electronic cigarette |
| WO2023151261A1 (en) * | 2022-02-09 | 2023-08-17 | 深圳市克莱鹏科技有限公司 | E-cigarette based on porous silicon atomization piece |
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