CN113951574A - Preparation of indirectly heated porous ceramic heating element and porous ceramic heating element - Google Patents
Preparation of indirectly heated porous ceramic heating element and porous ceramic heating element Download PDFInfo
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- CN113951574A CN113951574A CN202111459342.6A CN202111459342A CN113951574A CN 113951574 A CN113951574 A CN 113951574A CN 202111459342 A CN202111459342 A CN 202111459342A CN 113951574 A CN113951574 A CN 113951574A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 198
- 239000000919 ceramic Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract 4
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 abstract description 5
- 230000000391 smoking effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 35
- 239000003292 glue Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000006698 induction Effects 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
Abstract
The invention belongs to the field of heating smoking set, and particularly relates to preparation of an indirectly heated porous ceramic heating element and a porous ceramic heating element obtained by the preparation method. The preparation method comprises the following steps: a, preparing a heating element inner core (2) with a penetrating first fluid flow channel (21), preparing a heating element (4), and preparing a heating element outer layer (1) with a penetrating second fluid flow channel (11); and B, sequentially arranging and fixing the heating element inner core (2), the heating element (4) and the heating element outer layer (1) from the center to the periphery to form the porous ceramic heating element. The invention fixes the heating element between the inner core and the outer layer. The heat of the heating element is absorbed by the ceramic during both inward and outward conduction to heat the fluid passing through it. In addition, the heat quantity on the surface of the composite ceramic heating element is not too high, so that the heat insulation requirement on the smoking set is reduced.
Description
Technical Field
The invention belongs to the field of heaters, and particularly relates to preparation of an indirectly heated porous ceramic heating element and a porous ceramic heating element obtained by the preparation method.
Background
The conventional porous ceramic heating element is a ceramic heating element capable of indirectly heating a fluid (including gas and liquid) flowing between ceramic pores.
In the porous ceramic heating body, the heating wire is mostly wound, attached or embedded on the outer surface of ceramic, so that the porous ceramic body generates heat, and then the fluid flowing through the pores of the porous ceramic body is heated in a heat conduction manner.
When the heating wire is wound or attached to the surface of the outermost layer of the porous ceramic, there are the following problems:
1. since the ceramic itself is a material with a low thermal conductivity (at least relative to metals), the size of the porous ceramic cannot be made too large, otherwise heat cannot be quickly conducted to the central portion, causing the problem that the temperature difference between the central portion and the porous surface of the ceramic in the vicinity of the heater is too large, causing the heated fluid passing therebetween to be heated to a different extent.
2. The porous ceramic heating body also has the problem of uneven heating:
similarly, because the heating wire is positioned at the outermost layer, the highest temperature position of the porous ceramic heating body is the outermost layer, the central temperature is relatively low, and the whole porous ceramic heating body has uneven temperature and cannot uniformly heat a medium passing through.
3. The porous ceramic heating body also has the requirements of heat insulation and heat preservation:
when the porous ceramic heating element heats the medium passing through, only the heating wire is used for conducting the temperature to the core part of the porous heating element. This temperature is theoretically lower than the temperature of the heating wire even if the porous ceramic heating element is located closest to the heating wire. The highest temperature of the outermost layer of the whole porous heating element not only conducts useful heat to the inside of the porous ceramic, but also radiates heat to the periphery simultaneously by using the highest temperature.
Therefore, the heating wire can not only conduct heat to the porous ceramic of the inner core, but also radiate a great deal of heat to the periphery, thereby not only wasting input electric energy, but also bringing great heat insulation and preservation requirements to the porous ceramic heating body with smaller volume.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention provides a preparation method of an indirectly heated porous ceramic heating element, which comprises the following steps:
step A, preparing a heating element inner core 2 with a through first fluid flow channel 21, preparing a heating element 4, and preparing a heating element outer layer 1 with a through second fluid flow channel 11;
and B, sequentially arranging and fixing the heating element inner core 2, the heating element 4 and the heating element outer layer 1 from the center to the periphery to form the porous ceramic heating element.
Preferably, the fixing method may be: adding a glaze layer for sintering, or bonding by using a high-temperature resistant adhesive and then curing at high temperature.
More preferably, after the glaze layer or the high temperature resistant glue is added, an air exhausting operation is performed to exhaust air in a gap between any two of the heating element inner core 2, the heating element 4 and the heating element outer layer 1.
Preferably, the inner core 2 of the heating element is of a columnar structure, and the outer layer 1 of the heating element is of a hollow columnar structure.
Preferably, the heating element 4 is a hollow cylindrical structure.
Preferably, in the step B, the specific method of sequentially arranging the heating element inner core 2, the heating element 4, and the heating element outer layer 1 is:
the heating element 4 is fixed on the outer surface of the heating element inner core 2, and then the heating element outer layer 1 is sleeved outside.
Preferably, the heating element 4 is directly made of conductive filaments.
The heating element 4 of the present invention may be used for resistance heating, and may also be used for electromagnetic induction heating.
Preferably, the heating element 4 includes a heating sheet and a conductive wire disposed in the heating sheet.
More preferably, the heating sheet is made of an electromagnetic receptor material and is used for electromagnetic induction heating. The conductive wire has the function of measuring temperature. Specifically, the conductive wire can be designed by referring to a thermocouple temperature measurement mode, a closed loop is formed by using a certain metal element or conductors made of two or more alloy materials, and signals can be fed back to a measurement and control circuit, so that the timely measurement and control of the temperature are realized.
Preferably, the heating element 4 is also directly made of conductive filaments. The conductive wire can be designed by referring to a thermocouple temperature measurement mode, a closed loop is formed by using a certain metal element or two or more than two kinds of alloys, and current and (or voltage) signals can be fed back to a measurement and control circuit to realize measurement and control related to temperature. At this time, the conductive wire can have the heating and temperature measuring functions at the same time.
Preferably, the heating sheet is provided with a groove, the conductive wire is accommodated in the groove, and the conductive wire and the heating sheet are insulated within the working temperature range of the porous ceramic heating element. For example, an insulating layer may be attached to the surface of the heat generating sheet or the conductive wire.
Preferably, the heating element inner core 2 and the heating element outer layer 1 are both made of porous ceramics.
Preferably, the manufacturing method of the heating element 4 is as follows:
preparing a heating sheet with a groove,
preparing a metal wire, forming the middle part of the metal wire into a shape consistent with that of the groove, wherein the middle part is used as a conductive wire, and two end parts of the metal wire are used as conductive pins or the conductive pins are welded at the two ends of the conductive wire;
and (3) clamping the conductive wire into the groove of the heating sheet, exposing the conductive pin out of the heating sheet, and forming the heating sheet into a hollow columnar structure to form the heating element 4.
Preferably, a protective layer may be disposed outside the conductive wire and/or the heat generating sheet to prevent short circuit, corrosion, oxidation, and the like.
The present invention provides in a second aspect a porous ceramic heating element obtained by the production method according to any one of the first aspects.
The technical scheme can be freely combined on the premise of no contradiction.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a preparation method of an indirectly heated porous ceramic heating element, which fixes the heating element between an inner core and an outer layer. The heat of the heating element is absorbed by the ceramic during both inward and outward conduction to heat the fluid passing through it. Therefore, the heat of the heating element is fully utilized in the invention. In addition, the heat quantity on the surface of the composite ceramic heating element is not too high, so that the heat insulation requirement on the smoking set is reduced.
2. In the preferred technical scheme, the conductive wire can be directly used as the heating element, and the conductive wire can be embedded in the heating sheet to form the heating element. When the conducting wire is embedded in the heating piece, the conducting wire is not easy to fall off, and the heating piece is used as a heat transfer piece, and compared with a ceramic material, the heat transfer efficiency is higher.
3. The heating element can be used as a resistor for direct heating and can also be used for electromagnetic induction heating. In particular, the heating element comprises a heating sheet and a conductive wire arranged in the heating sheet. The heating sheet is made of electromagnetic receptor material and is used for electromagnetic induction heating, and the heat transfer effect is uniform. The conductive wire is used for timely temperature measurement and control.
4. According to the preparation method, the heating element, the inner core and the outer layer are fixed more tightly and firmly.
Drawings
FIG. 1 is a schematic view showing the structure of a heat-generating body element outer layer 1 in example 1.
FIG. 2 is a schematic view showing the structure of a heat-generating body element core 2 in example 1.
Fig. 3 is a schematic structural view of the heating element 4 in embodiment 1.
FIG. 4 is a schematic view showing the structure of an indirectly heated porous ceramic heating element in example 1.
FIG. 5 is a flow of preparing a porous ceramic heating element indirectly heated in example 1.
FIG. 6 is a flow chart showing the production of a heating element 4 according to example 2.
List of reference numerals:
1. heating element outer layer, 11, outer airflow channel, 2, heating element inner core, 21, inner airflow channel, 3, magnetic induction metal sheet, 31, negative wire sheet, 32, positive wire sheet, 4, heating element, 5, wire winder, 6, wire, 6a, forming wire, 6b, conductive wire pin, 71, positive wire die 71, 72 and negative wire die.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The materials or equipment used are not indicated by manufacturers, and all are conventional products available by purchase.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that 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. Further, "connected" as used herein may include wirelessly connected.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.
It will be understood by those skilled in the art that, unless otherwise defined, all terms including 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. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1
A method of making an indirectly heated porous ceramic heating element, the method comprising the steps of:
step A, preparing a heating element inner core 2 with a through first fluid flow channel 21, preparing a heating element 4, and preparing a heating element outer layer 1 with a through second fluid flow channel 11;
and step B, sequentially arranging the inner core 2 of the heating element, the heating element 4 and the outer layer 1 of the heating element from the center to the periphery, adding glaze or high-temperature adhesive, and sintering to form the porous ceramic heating element.
Fig. 1 is a schematic structural view of an outer layer 1 of a heating element in example 1.
FIG. 2 is a schematic view showing the structure of a heat-generating body element core 2 in example 1.
Fig. 3 is a schematic structural view of the heating element 4 in embodiment 1.
The outer layer 1 of the heating element is of a hollow cylindrical structure, and the cross section of the heating element is circular. The heating element outer layer 1 is obtained by injection molding of alumina ceramics. The heating element outer layer 1 is provided with a second fluid flow passage 11 which axially penetrates through the heating element outer layer. The cross-section of the second fluid flow channel 11 may be circular, or it may be a small sector, etc.
When the cross section of the outer layer 1 of the heating element is viewed, the second fluid flow channel 11 forms a plurality of holes which are uniformly distributed on the section of the circular ring. The plurality of second fluid flow channels 11 are independent of each other. The distance between two adjacent second fluid flow channels 11 is uniform, and the two adjacent second fluid flow channels are distributed along the central axis of the circular ring in the radial direction.
The diameter of the inner circle of the heating element outer layer 1 is approximately the sum of the outer diameter of the heating element inner core 2 and the thickness of the double heating element 4.
FIG. 2 is a schematic view of a heating element core 2, which is also injection-molded from alumina ceramics. The center passes through the first fluid flow passage 21 parallel to the core axis. The first fluid channels 21 are uniformly distributed and independent of each other. The cross section of the first fluid flow path 21 may be any of a square shape, a circular shape, a hexagonal shape, and the like.
In this embodiment, the heating element 4 is a conductive wire.
The specific preparation method of the indirectly heated porous ceramic heating element is as follows, and the preparation flow is shown in fig. 5:
a. the heating element 4 is bonded to the outer surface of the heating element core 2 by winding, printing, sintering, or the like.
Specifically, the conductive wire is molded into a zigzag circular sheet shape by a mold, then the circular conductive wire is wound, bonded or printed and sintered on the outer surface of the heating element inner core 2, then a heating pin is welded at the lower end of the outer surface of the heating element inner core 2, and the whole conductive wire is coated with a glaze layer, high-temperature glue and the like for insulation treatment protection.
Then, the heating element outer layer 1 is sleeved from the upper end of the heating element inner core 2 to the position of the heating pin, and the maximum solid size of the point is larger than the maximum aperture of the heating element inner core 2 to stop because the welding point has a certain height;
b. then fixing the inner core 2 of the heating element, properly rotating the outer layer 1 of the heating element to make the coated glaze layer and high temperature glue distributed evenly between the outer layer 1 of the heating element and the inner core 2 of the heating element, and exhausting air between the two interfaces as much as possible to ensure that the heating element 4 and the porous ring 1 outside the heating element have as low thermal resistance as possible.
c. And then sintering and/or curing the element at 800-1200 ℃ under a vacuum condition (if high-temperature glue is used, heating to the corresponding curing temperature), so as to obtain the stable and reliable porous ceramic heating element.
The porous ceramic heating element who makes is on the terminal surface that the welding has electrically conductive pin, and the lower terminal surface of heating element inner core 2 is than heating element skin 1 lower extreme face downward protrusion 1.5 ~ 2.5mm to make things convenient for leading out of electrically conductive silk pin 6 b.
Of course, in step b, the air can be exhausted by other methods instead of rotation. For example by means of a vacuum. Putting the objects into a vacuum box, vacuumizing, and taking out after a few minutes.
Example 2
In this embodiment, the heating element 4 includes a heating sheet and a conductive wire disposed in the heating sheet.
Fig. 6 is a flowchart of manufacturing the heating element 4.
In FIG. 6, the thickness of the female wire 31 is 0.03-0.3 mm. The male wire sheet 32 has the same thickness as the female wire sheet 31. The female wire piece 31 and the male wire piece 32 are each a metal piece formed of a ferromagnetic material. The negative line piece 31 and the positive line piece 32 are combined to form the magnetic induction metal piece 3 with a hollow square-shaped space in the middle. The magnetic induction metal sheet 3 is used as a heating sheet for standby.
The conductive wire is formed by welding metal wires 6 made of a single metal element or two or more alloys, so that the conductive wire has a characteristic that the resistance is linearly related to the temperature (or the resistance is linearly related to the temperature in a certain temperature range). Specifically, each section of metal wire 6 is made by mixing one or more of metals with excellent linear correlation between resistance and temperature, such as silver, platinum, titanium and nickel, according to a certain proportion. The wire 6 has a temperature linear coefficient of resistance over a range of temperatures. The diameter of the wire 6 is the same as the thickness of the female thread piece 31 and the male thread piece 32. After the wire 6 is drawn and unwound by the wire winder 5, the wire 6 is fed between the male wire die 71 and the female wire die 72. The male mold 71 corresponds to the portion of the female wire 31. The female wire mold 72 corresponds to the portion of the male wire sheet 32 that is missing. When the male wire die 71 and the female wire die 72 are linearly moved up and down, respectively, the metal wire 6 inserted therebetween is molded into the molding wire 6a of the male wire die 71 and the female wire die 72 having the corresponding shapes. Then, a certain length of linear conductive wire pins 6b are left at two ends of the forming wire 6a for the metal wire which does not enter the male wire die 71 and the female wire die 72. The remaining portion of the wire is cut off.
The conductive wire pins 6b are partially protected by a material which is easy to remove and resistant to high temperature. For example, a high temperature resistant protective layer is wrapped outside the conductive wire pin 6 b. And (3) performing insulation protection such as insulation vacuum coating on the forming wire 6a part, combining and splicing the forming wire and the magnetic induction metal sheet 3 into a whole, and dispensing high-temperature glue on two to three points in the length direction of the spliced planar composite molding wire 6a, the female wire sheet 31 and the male wire sheet 32 to form a planar composite part in which the magnetic induction metal sheet 3 and the forming wire 6a are bonded and spliced into a whole. Then, the connecting wire is sent into a rolling mould with the diameter the same as or slightly smaller than the outer diameter of the inner core 2 of the heating element, then the rolling mould is inserted into a mould core which has the same diameter as the inner core 2 and is coated with grease (easy to draw out), the mould core can be heated and shaped, high-temperature glue is further filled between the mould pressing wire 6a and a gap between the female wire piece 31 and the male wire piece 32, the filled high-temperature glue is cured at high temperature after vacuum pumping, the temperature is kept for the time required by the complete curing of the high-temperature glue, then the mould pressing inner core is cooled to normal temperature, and the mould pressing inner core is drawn out to form a hollow cylindrical composite piece. Cleaning grease, and removing the protective materials on the conductive wire pins 6b (these protective materials can also be removed when the whole heating element 4 is to be connected to a circuit), thereby completing the preparation of the heating element 4.
Subsequently, the heating element 4 is sleeved outside the heating element inner core 2, and then the heating element outer layer 1 is sleeved. The three parts are fixed by a glaze layer or a high-temperature resistant glue before, and the air in the gap between the three parts is discharged, so that the whole indirectly heated porous ceramic heating element is formed.
Furthermore, when the three are previously fixed by means of a glaze layer, a sintering step is required. When the three are fixed by the high temperature resistant glue, the three need to be cured at high temperature.
Claims (10)
1. A method for preparing an indirectly heated porous ceramic heating element, comprising the steps of:
a, preparing a heating element inner core (2) with a penetrating first fluid flow channel (21), preparing a heating element (4), and preparing a heating element outer layer (1) with a penetrating second fluid flow channel (11);
and B, sequentially arranging and fixing the heating element inner core (2), the heating element (4) and the heating element outer layer (1) from the center to the periphery to form the porous ceramic heating element.
2. The method of producing an indirectly heated porous ceramic heating element as claimed in claim 1, wherein the heating element inner core (2) is of a columnar structure and the heating element outer layer (1) is of a hollow columnar structure.
3. The method of manufacturing an indirectly heated porous ceramic heating element as recited in claim 1, wherein the heating element (4) is a hollow columnar structure.
4. The method for producing an indirectly heated porous ceramic heating element as claimed in claim 1, wherein in the step B, the specific method of arranging the heating element inner core (2), the heating element (4), and the heating element outer layer (1) in this order is:
the heating element (4) is fixed on the outer surface of the heating element inner core (2) and then the heating element outer layer (1) is sleeved outside.
5. The method of manufacturing an indirectly heated porous ceramic heating element according to claim 1, wherein the heating element (4) comprises a heating sheet and a conductive wire provided in the heating sheet.
6. The method of manufacturing an indirectly heated porous ceramic heating element as recited in claim 1, characterized in that a conductive filament is directly used as the heating element (4).
7. The method of claim 5, wherein the heat generating sheet has a groove, the conductive wire is received in the groove, and the conductive wire and the heat generating sheet are insulated in an operating temperature range of the porous ceramic heat generating element.
8. The method of producing an indirectly heated porous ceramic heating element as claimed in claim 1, wherein the heater element inner core (2) and the heater element outer layer (1) are both porous ceramics.
9. The method of manufacturing an indirectly heated porous ceramic heating element as recited in claim 7, characterized in that the method of manufacturing the heating element (4) is as follows:
preparing a heating sheet with a groove,
preparing a metal wire, forming the middle part of the metal wire into a shape consistent with that of the groove, wherein the middle part is used as a conductive wire, and two end parts of the metal wire are used as conductive pins or the conductive pins are welded at the two ends of the conductive wire;
and (3) clamping the conductive wire into the groove of the heating sheet, exposing the conductive pin out of the heating sheet, and forming the heating sheet into a hollow columnar structure to form a heating element (4).
10. A porous ceramic heating element obtained by the production method according to any one of claims 1 to 6.
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| CN202111459342.6A CN113951574A (en) | 2021-12-02 | 2021-12-02 | Preparation of indirectly heated porous ceramic heating element and porous ceramic heating element |
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| CN202111459342.6A CN113951574A (en) | 2021-12-02 | 2021-12-02 | Preparation of indirectly heated porous ceramic heating element and porous ceramic heating element |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209002923U (en) * | 2018-07-23 | 2019-06-21 | 深圳市鑫陶窑炉设备有限公司 | A kind of porous ceramics heat radiating structure and atomizer |
| CN110074469A (en) * | 2019-06-10 | 2019-08-02 | 珠海诗朗豪泰科技有限公司 | Porous ceramics heater element and its manufacturing method |
| CN110563466A (en) * | 2019-09-25 | 2019-12-13 | 深圳市辰昱科技有限公司 | porous ceramic heating element and preparation method thereof |
| CN110710721A (en) * | 2019-05-16 | 2020-01-21 | 厦门蜂涛陶瓷有限公司 | Non-contact electronic cigarette heater |
| WO2020228773A1 (en) * | 2019-05-16 | 2020-11-19 | 厦门蜂涛陶瓷有限公司 | Heating-air-type e-cigarette heater, ceramic heating body and preparation method therefor |
-
2021
- 2021-12-02 CN CN202111459342.6A patent/CN113951574A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209002923U (en) * | 2018-07-23 | 2019-06-21 | 深圳市鑫陶窑炉设备有限公司 | A kind of porous ceramics heat radiating structure and atomizer |
| CN110710721A (en) * | 2019-05-16 | 2020-01-21 | 厦门蜂涛陶瓷有限公司 | Non-contact electronic cigarette heater |
| WO2020228773A1 (en) * | 2019-05-16 | 2020-11-19 | 厦门蜂涛陶瓷有限公司 | Heating-air-type e-cigarette heater, ceramic heating body and preparation method therefor |
| CN110074469A (en) * | 2019-06-10 | 2019-08-02 | 珠海诗朗豪泰科技有限公司 | Porous ceramics heater element and its manufacturing method |
| CN110563466A (en) * | 2019-09-25 | 2019-12-13 | 深圳市辰昱科技有限公司 | porous ceramic heating element and preparation method thereof |
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