Patent Application
20250057226
This application claims priority of Chinese Patent Application No. 2023110546745, filed on Aug. 18, 2023, entitled “POROUS CERAMIC ATOMIZATION CORE, METHOD FOR PREPARING THE SAME AND ATOMIZATION DEVICE”, the entire content of which is incorporated herein in its entirety.
The present disclosure relates to the field of atomization technology, and in particular to a porous ceramic atomization core, a method for preparing a porous ceramic atomization core, and an atomization device.
Atomization device usually includes an atomization assembly and a power supply device that supplies power to the atomization assembly. The atomization device is provided with a liquid storage chamber, an atomization chamber, and an atomization core located in the atomization chamber. The atomization chamber is in communication with the liquid storage chamber. The atomization core can absorb liquid in the liquid storage chamber. When in use, the power supply device supplies power to the atomization core, so that the atomization core converts the adsorbed liquid into aerosol for a user to inhale. There are many types of atomization cores on the market, among which ceramic atomization cores are favored by users due to the uniformity of heat generation and fast heating speed.
However, the common ceramic atomizer cores currently in the market usually have a heating film in an S-shape attached to a ceramic surface, or a spiral heating wire is placed on an inner tube wall of a ceramic body. A heating area is relatively small, insufficient atomization is prone to occur, resulting in poor taste of the aerosol produced by the atomization device. Therefore, it is necessary to design an atomization core with a relatively large heating area to improve the atomizing effect of the atomization core and improve the user's inhalation taste.
Accordingly, it is necessary to provide a porous ceramic atomization core, which addresses to increase a heating area of the porous ceramic atomizing core to improve the atomizing effect of the atomizing core, thereby improving a user's inhalation taste.
A porous ceramic atomization core includes: a porous ceramic body having a porosity of about 30% to about 55% and a pore diameter of about 10 μm to about 45 μm, the porous ceramic body being provided with an atomization through hole extending through both ends thereof; and a heating element provided in the atomization through hole, the heating element including a first electrode, a second electrode, and a heating mesh, the first electrode and the second electrode being parallel to an axis of the atomization through hole, a gap being formed between the first electrode and the second electrode, two ends of the heating mesh being connected to the first electrode and the second electrode respectively, the heating mesh being arc-shaped and extending along a circumferential direction of the atomization through hole, and a surface of the heating mesh abutting against an inner wall of the atomization through hole.
In one of the embodiments, the porosity and/or pore diameter of the porous ceramic body is proportional to a mesh density of the heating mesh; and/or the heating element further includes a first pin and a second pin, the first pin is connected to the first electrode and extends out of the atomization through hole, and the second pin is connected to the second electrode and extends out of the atomization through hole.
In one of the embodiments, the heating mesh is formed by interweaving heating wires, a length of the heating wires is about 10 mm to about 50 mm, a thickness of each heating wire is about 0.1 mm to about 0.5 mm, and a resistance of the heating wires is about 0.852 to about 1.652.
In one of the embodiments, the porous ceramic body includes, in weight percentage, about 20% to about 30% of quartz sand, about 10% to about 20% of mullite, about 5% to about 10% of clay, about 15% to about 25% of sintering aid, about 15% to about 35% of pore-forming agent, and about 15% to about 30% of paraffin wax.
In one of the embodiments, a particle size of the quartz sand is about 200 mesh to about 300 mesh, an/or a particle size of the mullite is about 100 mesh to about 200 mesh, an/or a particle size of the clay is about 180 mesh to about 250 mesh, an/or a particle size of the sintering aid is about 200 mesh to about 300 mesh, an/or a pore diameter of the pore-forming agent is about 25 μm to about 50 μm.
The present disclosure further provides a method for preparing a porous ceramic atomization core, including: preparing porous ceramic body slurry; providing a heating element and a mold; placing the heating element in the mold, injecting the porous ceramic body slurry into the mold, and demolding the porous ceramic body slurry after being cooled to obtain an atomization core green body; and degreasing and sintering the atomization core green body, and obtaining the porous ceramic atomization core after heat preservation.
In one of the embodiments, the preparing the porous ceramic body slurry includes: weighing raw materials according to the following weight percentage: about 20% to about 30% of quartz sand, about 10% to about 20% of mullite, about 5% to about 10% of clay, about 15% to about 25% of sintering aid, about 15% to about 35% of pore-forming agent, and about 15% to about 30% of paraffin wax; placing the raw materials into a mixer and mixing the raw materials; and placing the mixed raw materials into a closed plastic mixer and mixing the mixed raw materials until the mixed raw materials become a flowing slurry to obtain the porous ceramic body slurry.
In one of the embodiments, an internal mixing temperature of the closed plastic mixer is about 70° C. to about 100° C., and/or a particle size of the quartz sand is about 200 mesh to about 300 mesh, and/or a particle size of the mullite is about 100 mesh to about 200 mesh, and/or a particle size of the clay is about 180 mesh to about 250 mesh, and/or a particle size of the mullite is about 100 mesh to about 200 mesh, and/or a particle size of the sintering aid is about 200 mesh to about 250 mesh, and/or a pore diameter of the pore-forming agent is about 25 μm to about 50 μm.
In one of the embodiments, a degreasing and sintering temperature of the atomization core green body is about 700° C. to about 100° C., and a time of the heat preservation is about 0.5 hours to about 2 hours; and/or the method further includes: placing the porous ceramic atomizer core into an ultrasonic cleaning machine for cleaning, and drying the porous ceramic atomizer core after cleaning.
The present disclosure further provides an atomization device, which includes the above-mentioned porous ceramic atomization core.
According to the technical solution of the present disclosure, the porosity and pore diameter of the porous ceramic body are relatively large, so that the porous ceramic body has a faster liquid conduction speed and an enhanced liquid absorption capacity. Moreover, the heating mesh is arranged in a mesh shape and extends along the circumferential direction of the atomization through hole, so that a contact area between the heating element and the porous ceramic body is increased in a limited space, that is, the atomization area is increased. At the same time, the porous ceramic body is heated evenly, so as to ensure that the liquid is atomized quickly and fully, while also effectively prevent the porous ceramic body from being burned due to localized heating. The atomizing effect of the porous ceramic atomization core is ensured, thereby improving the user's inhalation taste.
These and other features of the present disclosure will become readily apparent upon further review of the following specification and drawings.
To illustrate the technical solutions according to the embodiments of the present disclosure or in the prior art more clearly, the accompanying drawings for describing the embodiments or the prior art are introduced briefly in the following. Apparently, the accompanying drawings in the following description are only some embodiments of the present disclosure, and persons of ordinary skill in the art can derive other drawings from the accompanying drawings without creative efforts.
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present disclosure.
It should be noted that in the embodiment of the present disclosure, all directional indications (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship, movement, etc. between the components in a specific state (as shown in figures). If the specific state changes, the directional indication will also change accordingly.
In addition, the terms “first”, “second”, etc. in the present disclosure are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features. In addition, “and/or” in the present disclosure includes three solutions, taking A and/or B as an example, including technical solution A, technical solution B, and technical solutions that satisfy both A and B at the same time. In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such combination of the technical solutions is excluded and is not within the scope of the present disclosure.
The present disclosure provides a porous ceramic atomization core, which is mainly applied in an atomization device to improve the atomizing effect of the atomization device, so as to enhance the user's inhalation taste. The atomization device generally includes an atomization assembly and a power supply device that supplies power to the atomization assembly. The atomization assembly is provided with a liquid storage chamber, an atomization chamber, and a porous ceramic atomization core located in the atomization chamber. The atomization chamber is in communication with the liquid storage chamber, the porous ceramic atomization core can absorb liquid in the liquid storage chamber. When in use, the power supply device supplies power to the porous ceramic atomization core, so that the liquid adsorbed on the porous ceramic atomization core is converted into aerosol for a user to inhale.
The specific structure of the porous ceramic atomization core will be described below.
Referring to
Specifically, in this embodiment, the porous ceramic body 100 is configured to absorb liquid in a liquid storage chamber, and the heating element 200 is configured to be electrically connected to a power supply device. During operation, the first electrode 210 and the second electrode 220 are electrically connected (directly or indirectly, which is not limited herein) to the power supply device respectively, so that the heating mesh 230 can generate heat. Since the heating mesh 230 abuts against the inner wall of the atomization through hole 110 of the porous ceramic substrate 100, the porous ceramic substrate 100 is heated, thereby converting the liquid adsorbed on the porous ceramic base 100 into aerosol for the user to inhale.
According to the technical solution of the present disclosure, the porosity and pore diameter of the porous ceramic body 100 are relatively large, so that the porous ceramic body 100 has a faster liquid conduction speed and a stronger liquid absorption capacity. Moreover, the heating mesh 230 is arranged in a mesh shape and extends along the circumferential direction of the atomization through hole 110, so that a contact area between the heating element 200 and the porous ceramic body 100 is increased in a limited space, that is, the atomization area is increased. At the same time, the porous ceramic body 100 is heated evenly, so as to ensure that the liquid is atomized quickly and fully, while also effectively prevent the porous ceramic body 100 from being burned due to localized heating. The atomizing effect of the porous ceramic atomization core is ensured, thereby enhancing the user's inhalation taste.
In one embodiment, in order to facilitate an electrical connection between the heating element 200 and the power supply device, the heating element 200 may further include a first pin 250 and a second pin 260. The first pin 250 is connected to the first electrode 210 and extends out of the atomization through hole 110. The second pin 260 is connected to the second electrode 220 and extends out of the atomization through hole 110. In this way, it is convenient for the first pin 250 and the second pin 260 to connect to or abut against the power supply device, so as to realize the electrical conduction between the heating element 200 and the power supply device.
In order to further improve the atomization effect of the porous ceramic atomization core, in some embodiments, the porosity and/or pore diameter of the porous ceramic body 100 is proportional to a mesh density of the heating mesh 230. That is, the larger porosity and/or pore diameter of the porous ceramic body 100, the larger the mesh density of the heating mesh 230. Since the porosity and/or pore diameter of the porous ceramic body 100 is larger, the liquid conduction speed of the porous ceramic body 100 is faster, and the liquid absorption capacity is enhanced, the heating mesh 230 with a larger heating area can be provided correspondingly to ensure the atomization effect. In the same limited space, the greater the mesh density of the heating mesh 230, the larger the heating area of the heating mesh 230. Therefore, the heating area of the heating mesh 230 can be controlled by controlling the mesh density of the heating mesh 230.
In some embodiments, the heating mesh 230 is formed interweaving heating wires. A length of the heating wires is about 10 mm to about 50 mm, a thickness of each heating wire is about 0.1 to about 0.5 mm, and a resistance of the heating wires is about 0.852 to about 1.652. When in use, the length and thickness of the heating mesh 230 can be selected according to the porosity and/or pore diameter of the porous ceramic body 100. For example, when the porosity and/or pore diameter of the selected porous ceramic body 100 is relatively large, the heating mesh 230 with a relatively large length and/or thickness may be selected. When the porosity and/or pore diameter of the selected porous ceramic body 100 is relatively small, a heating mesh 230 with a relatively small length and/or thickness may be selected. In this embodiment, a number of heating wires is not specifically limited, which can be one or more than one. When a plurality of heating wires are provided, the length of the at least one heating wire is a total length of the plurality of heating wires, i.e. a sum of the lengths of the plurality of the heating wires.
In some embodiments, the porous ceramic body 100 includes, in weight percentage, about 20% to about 30% of quartz sand, about 10% to about 20% of mullite, about 5% to about 10% of clay, about 15% to about 25% of sintering aid, about 15% to about 35% of pore-forming agent, and about 15% to about 30% of paraffin wax. The sintering aid can be one or more of kaolin, calcium carbonate, and glass powder. The pore-forming agent can be one or more of coal powder, carbon powder, polymethyl methacrylate, starch, and corn flour. In this embodiment, quartz sand is hard, wear-resistant, and has stable chemical properties, so as to ensure the hardness of the porous ceramic body 100. The high strength of mullite can ensure the strength of the porous ceramic body 100. The addition of pore-forming agent causes the porous ceramic body 100 to generate a hole structure. The addition of clay and paraffin wax ensures the viscosity of the porous ceramic body 100 and stabilizes the structure of the porous ceramic body 100. The sintering aid can promote sintering during the preparing process of the porous ceramic body 100. Through the components and the above proportion of each component, the strength and hardness of the porous ceramic body 100 are ensured, while the porosity and pore diameter of the porous ceramic body 100 are relatively large, so that the porous ceramic body 100 has a faster liquid conduction speed and a stronger liquid absorption capacity, thereby improving the atomization effect of the porous ceramic atomization core.
In an embodiment, a particle size of the quartz sand is about 200 mesh to about 300 mesh, and/or a particle size of the mullite is about 100 mesh to about 200 mesh, and/or a particle size of the clay is about 180 mesh to about 250 mesh, and/or, a particle size of the sintering aid is about 200 mesh to about 300 mesh, and/or, the pore diameter of the pore-forming agent is about 25 μm to about 50 μm.
In one embodiment, a method for preparing a porous ceramic atomization core is provided, which includes following steps.
S10, porous ceramic body slurry is prepared.
S20, a heating element 200 and a mold are provided.
S30, the heating element 200 is placed in the mold, the porous ceramic body slurry is injected into the mold, and the porous ceramic body slurry is cooled and demolded to obtain an atomization core green body.
S40, the atomization core green body is degreased and sintered, and the porous ceramic atomization core is obtained after heat preservation.
In S10, there are many ways to prepare the porous ceramic body slurry, for example, the following steps may be included.
S11, raw materials are weighed according to the following weight percentages: about 20% to about 30% of quartz sand, about 10% to about 20% of mullite, about 5% to about 10% of clay, about 15% to about 25% of sintering aid, about 15% to about 35% of pore-forming agent, and about 15% to about 30% of paraffin wax.
S12, the raw materials are placed into a mixer and mixed.
S13, the mixed raw materials are placed into a closed plastic mixer closed plastic mixer and mixed until the mixed raw materials become a flowing slurry to form the porous ceramic body slurry.
In S11, the percentages of each component are, for example, 20% of quartz sand, 14% of mullite, 8% of clay, 18% of sintering aid, 25% of pore-forming agent, and 15% of paraffin wax. Quartz sand is hard, wear-resistant, and has stable chemical properties, so as to ensure the hardness of the porous ceramic body 100. The high strength of mullite can ensure the strength of the porous ceramic body 100. The addition of pore-forming agent causes the porous ceramic body 100 to generate a hole structure. The addition of clay and paraffin wax ensures the viscosity of the porous ceramic body 100 and stabilizes the structure of the porous ceramic body 100. The sintering aid can promote sintering during the preparing process of the porous ceramic body 100. Through the components and the above proportion of each component, the strength and hardness of the porous ceramic body 100 are ensured, while the porosity and pore diameter of the porous ceramic body 100 are relatively large, so that the porous ceramic body 100 has a faster liquid conduction speed and a stronger liquid absorption capacity, thereby improving the atomization effect of the porous ceramic atomization core. In an embodiment, the particle size of the quartz sand is about 200 mesh to about 300 mesh, and/or the particle size of the mullite is about 100 mesh to about 200 mesh, and/or the particle size of the clay is about 180 mesh to about 250 mesh, and/or, the particle size of the sintering aid is about 200 mesh to about 300 mesh, and/or, the pore diameter of the pore-forming agent is about 25 μm to about 50 μm.
In S12, a mixing time of raw materials in the mixer can be about 1 to about 2 hours to ensure that the raw materials are mixed evenly.
In S13, a mixing temperature of the closed plastic mixer is about 70° C. to about 100° C., such as 80° C., 90° C., etc. Since the melting point of paraffin wax is low, the mixing temperature of the closed plastic mixer should not be too high to prevent the paraffin wax from burning and affecting the quality of the product. A mixing time of the mixed raw materials in the closed plastic mixer can be about 1 hour to about 2 hours until the raw materials become the flowing slurry.
In S20, the heating element 200 and the mold can be manufactured by existing technical means, and will not be described in detail herein.
In S30, the cooling method may be natural cooling, or may be cooled by a fan or other methods.
In S40, a degreasing and sintering temperature for the atomization core green body can be about 700° C. to about 800° C., such as 730° C., 750° C., 780° C., etc. A time of the heat preservation can be about 0.5 hours to about 2 hours, such as 1 hour, 1.5 hours, etc.
After step S40, step S50 can further be performed, in which the porous ceramic atomization core is placed into an ultrasonic cleaning machine for cleaning, and is dried after cleaning.
The present disclosure further provides an atomization device. The atomization device includes a porous ceramic atomization core. The specific structure of the porous ceramic atomization core refers to the above-mentioned embodiments. Since the atomization device adopts the porous ceramic atomization core of the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects of the technical solutions of the above embodiments, which will not be repeated here.
The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above-mentioned embodiments shall be included within the protection scope of this technical solution.
The foregoing descriptions are merely specific embodiments of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present disclosure shall all fall within the protection scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311054674.5 | Aug 2023 | CN | national |
