CN209749814U - Thick film porous ceramic heating body - Google Patents
Thick film porous ceramic heating body Download PDFInfo
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- CN209749814U CN209749814U CN201920228502.8U CN201920228502U CN209749814U CN 209749814 U CN209749814 U CN 209749814U CN 201920228502 U CN201920228502 U CN 201920228502U CN 209749814 U CN209749814 U CN 209749814U
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Abstract
The utility model relates to a pottery heat-generating body technical field, concretely relates to thick film porous ceramic heat-generating body, this heat-generating body include porous ceramic base member, insulating ceramic transition layer, thick film heating circuit layer and electrode lead wire, the lower surface on insulating ceramic transition layer with the upper surface laminating of porous ceramic base member is connected, the upper surface on insulating ceramic transition layer with the lower surface laminating on thick film heating circuit layer is connected, electrode lead wire welding in the surface of porous ceramic base member. The utility model discloses a ceramic heat-generating body novel structure is simple, and thick film heating line layer sets up in the outermost surface of ceramic base member, reduces the heat energy loss that multilayer insulating layer caused, avoids the heat only to follow the bottom and the outside conduction in side of base member for the heat-generating body generates heat evenly, has ensured the atomizing effect of heat-generating body and the taste of electron cigarette.
Description
Technical Field
The utility model relates to a ceramic heat-generating body technical field, concretely relates to thick film porous ceramic heat-generating body.
Background
The porous ceramic heating element for the electronic cigarette at present mainly adopts a process of integrally forming a metal heating wire and a porous ceramic substrate, and then is sintered together at the low temperature of 500-900 ℃, and the prepared porous ceramic heating element has poor structural strength and poor heat conduction due to low sintering temperature, and is easy to deposit carbon to generate peculiar smell.
In addition, the existing ceramic heating element also adopts two insulating layers, a heating line is clamped between the two insulating layers, and the heat of the heating line is blocked by the insulating layers, so that the heat is conducted outwards from the bottom and the side surfaces of the base body, and the ceramic heating element has low heat conducting performance and uneven heating.
Disclosure of Invention
In order to overcome the shortcoming and the not enough that exist among the prior art, the utility model aims to provide a thick film porous ceramic heat-generating body, this ceramic heat-generating body novel structure is simple, and thick film heating circuit layer sets up in the outermost surface of ceramic base member, reduces the heat loss that multilayer insulating layer caused, avoids the heat to only follow the bottom and the outside conduction in side of base member for the heat-generating body generates heat evenly, has ensured the atomizing effect of heat-generating body and the taste of electron cigarette.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a thick film porous ceramic heat-generating body, this heat-generating body include porous ceramic base member, insulating ceramic transition layer, thick film heating line layer and electrode lead wire, the lower surface on insulating ceramic transition layer with the upper surface laminating of porous ceramic base member is connected, the upper surface on insulating ceramic transition layer with the lower surface laminating on thick film heating line layer is connected, electrode lead wire weld in the surface of porous ceramic base member.
Furthermore, a groove for accommodating the electrode lead is concavely arranged on the surface of the porous ceramic substrate, and the electrode lead penetrates through the insulating ceramic transition layer and the thick film heating circuit layer and is welded in the groove.
Further, the porosity of the porous ceramic matrix is 30-70%, and the pore size of the pores is 20-500 μm.
Further, the thickness of the insulating ceramic transition layer is 20-200 μm.
Further, the thickness of the thick film heating circuit layer is 20-200 μm.
Further, the cross section of the porous ceramic matrix is in a hollow structure, a circle, a square, a trapezoid or a horseshoe shape.
Further, the thick film heat emitting circuit layer is prepared by printing base metal resistance paste.
Further, the base metal resistance paste is an alloy paste containing one or more of nickel, chromium, iron, and titanium.
Further, the expansion coefficient of the insulating ceramic transition layer is the same as that of the porous ceramic matrix and that of the thick-film heating circuit layer.
The beneficial effects of the utility model reside in that: the utility model discloses a ceramic heat-generating body novel structure is simple, and thick film heating line layer sets up in the outermost surface of ceramic base member, reduces the heat energy loss that multilayer insulating layer caused, avoids the heat only to follow the bottom and the outside conduction in side of base member for the heat-generating body generates heat evenly, has ensured the atomizing effect of heat-generating body and the taste of electron cigarette.
Drawings
FIG. 1 is an exploded schematic view of the present invention;
Fig. 2 is a schematic perspective view of the present invention.
The reference signs are: 1-porous ceramic substrate, 11-groove, 2-electrode lead, 3-insulating ceramic transition layer, 4-thick film heating circuit layer.
Detailed Description
In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-2, which are not intended to limit the present invention.
Referring to fig. 1-2, the thick film porous ceramic heating element comprises a porous ceramic substrate 1, an insulating ceramic transition layer 3, a thick film heating circuit layer 4 and an electrode lead 2, wherein the lower surface of the insulating ceramic transition layer 3 is attached to the upper surface of the porous ceramic substrate 1, the upper surface of the insulating ceramic transition layer 3 is attached to the lower surface of the thick film heating circuit layer 4, and the electrode lead 2 is welded to the surface of the porous ceramic substrate 1.
The ceramic heating body of this embodiment novel structure is simple, and thick film heating circuit layer 4 sets up in the outermost surface of ceramic base member, reduces the heat loss that the multilayer insulating layer caused, avoids the heat to only follow the bottom and the outside conduction in side of base member for the heating body generates heat evenly, has ensured the atomizing effect of heating body and the taste of electron cigarette.
In this embodiment, a groove 11 for accommodating the electrode lead 2 is recessed in the surface of the porous ceramic substrate 1, and the electrode lead 2 penetrates through the insulating ceramic transition layer 3 and the thick film heating circuit layer 4 and is welded in the groove 11.
In the embodiment, the groove 11 is arranged, so that the electrode lead 2 can be stably welded on the surface of the porous ceramic substrate 1, the stability of the electrode lead 2 is improved, the stable transmission of a power supply is ensured, and the service life of the heating element is prolonged; after the thick film heating circuit is printed, the solder is arranged at the contact part of the groove 11 and the electrode lead 2, and then the porous ceramic matrix 1 welded with the electrode lead 2 is sintered in the hydrogen condition of 1000-1200 ℃, so that the electrode lead 2 and the porous ceramic matrix 1 which are stably connected are prepared, and the quality is stable and the practicability is high.
In this embodiment, the porosity of the porous ceramic substrate 1 is 30 to 70%, and the pore size of the pores is 20 to 500 μm.
In the embodiment, the porosity and pore size of the porous ceramic matrix 1 are strictly controlled, so that the porous ceramic matrix 1 has better structural strength and thermal conductivity, and the heating body can uniformly heat; if the porosity is too large and the pore size is too large, the porous ceramic matrix 1 stores too much air in pores, the heat transfer and conduction performance is reduced, and the structural strength of the matrix is reduced; if the porosity is too small and the pore size is too small, the air stored in the pores of the porous ceramic substrate 1 is too small, so that the heat insulation performance of the heating element to heat is low. Specifically, the porous ceramic base 1 has a porosity of 30%, 40%, 50%, 60%, or 70%, and a pore size of 20 μm, 100 μm, 200 μm, 300 μm, 400 μm, or 500 μm.
In this embodiment, the thickness of the insulating ceramic transition layer 3 is 20 to 200 μm.
In the embodiment, the thickness of the insulating ceramic transition layer 3 is strictly controlled, so that the power supply of the heating circuit layer can be isolated, the electric leakage phenomenon is prevented, and meanwhile, the heat generated by the heating circuit layer can be conducted to the porous ceramic substrate 1, so that the heating element uniformly heats, and the atomization effect of the heating element and the taste of the electronic cigarette are ensured; if the thickness is thick, the heat conductivity is reduced, so that heat loss occurs and the heat generation of the heating element becomes uneven. In particular, the insulating ceramic transition layer 3 has a thickness of 20 μm, 65 μm, 110 μm, 155 μm or 200 μm.
In the insulating ceramic transition layer 3 of this embodiment, insulating ceramic slurry containing silicon dioxide is uniformly coated on the surface of the ceramic substrate, and then the porous ceramic substrate 1 coated with the insulating ceramic slurry is placed in a high temperature sintering furnace at 12000 ℃ for sintering, so that the insulating ceramic transition layer 3 is sintered on the surface of the porous ceramic substrate 1.
In this embodiment, the thick film heat-emitting circuit layer 4 has a thickness of 20 to 200 μm.
This embodiment can evenly produce under the effect of resistance through the thickness of strict control thick film heating circuit layer 4 to it is stable with electrode lead 2 welding, and it is even to generate heat to conduct heat, enables the heat-generating body that makes and evenly generates heat, guarantees the atomizing effect of heat-generating body and the taste of electron cigarette. Specifically, the thickness of the thick film heat emitting circuit layer 4 is 20 μm, 65 μm, 110 μm, 155 μm or 200 μm.
In this embodiment, the cross section of the porous ceramic substrate 1 is a hollow structure, a circle, a square, a trapezoid, or a horseshoe.
This embodiment is through the base member cross section that adopts above-mentioned figure, stable in structure easily at base member surface coating to easily processing is installed in the electron cigarette, convenient to use, and the practicality is high. The cross section of the porous ceramic matrix 1 of the present invention can also be other regular geometric shapes or irregular daily figures, such as oval, without departing from the present invention, any obvious replacement is within the protection scope of the present invention.
In this example, the thick film heat emitting circuit layer 4 was prepared by printing base metal resistance paste.
In this embodiment, the base metal resistance paste is an alloy paste containing one or more of nickel, chromium, iron, and titanium.
This embodiment is through adopting base metal's resistance thick film heating circuit layer 4 of preparation, and power transmission efficiency is high, and the resistivity is high, and the production of heat can give off the heat to the upper surface of thick film heating circuit layer 4, and accessible insulating ceramic transition layer 3 conducts heat to porous ceramic base member 1 again, reduces multilayer insulating layer and presss from both sides heating circuit layer and causes the heat energy loss, makes the heat-generating body evenly generate heat, and the practicality is high.
In this embodiment, the expansion coefficient of the insulating ceramic transition layer 3 is the same as that of the porous ceramic base 1 and that of the thick-film heating circuit layer 4.
In the embodiment, the expansion coefficients among the insulating ceramic transition layer 3, the porous ceramic substrate 1 and the thick film heating circuit layer 4 are strictly controlled, so that the insulating ceramic transition layer 3 is formed in high-temperature sintering after being coated with the insulating ceramic transition layer 3, and the thick film heating circuit layer 4 is printed in high-temperature sintering, the forming is stable, the quality is stable, cracks and cracks are generated due to excessive expansion of the insulating ceramic transition layer 3, the porous ceramic substrate 1 and the thick film heating circuit layer 4 caused by high temperature, the quality of the heating element is damaged, the yield of the heating element is reduced, heating is caused, and heat transfer is not uniform.
The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.
Claims (9)
1. A thick film porous ceramic heating body is characterized in that: this heat-generating body includes porous ceramic base member, insulating ceramic transition layer, thick film heating circuit layer and electrode lead wire, the lower surface on insulating ceramic transition layer with the upper surface laminating of porous ceramic base member is connected, the upper surface on insulating ceramic transition layer with the lower surface laminating on thick film heating circuit layer is connected, electrode lead wire welding in the surface of porous ceramic base member.
2. A thick film porous ceramic heat-generating body as described in claim 1, characterized in that: the surface of the porous ceramic base body is concavely provided with a groove for accommodating the electrode lead, and the electrode lead penetrates through the insulating ceramic transition layer and the thick film heating circuit layer and is welded in the groove.
3. A thick film porous ceramic heat-generating body as described in claim 1, characterized in that: the porosity of the porous ceramic matrix is 30-70%, and the pore size of the pores is 20-500 μm.
4. A thick film porous ceramic heat-generating body as described in claim 1, characterized in that: the thickness of the insulating ceramic transition layer is 20-200 μm.
5. A thick film porous ceramic heat-generating body as described in claim 1, characterized in that: the thickness of the thick film heating circuit layer is 20-200 μm.
6. A thick film porous ceramic heat-generating body as described in claim 1, characterized in that: the cross section of the porous ceramic matrix is of a hollow structure, a round shape, a square shape, a trapezoid shape or a horseshoe shape.
7. A thick film porous ceramic heat-generating body as described in claim 1, characterized in that: the thick film heating circuit layer is prepared by printing base metal resistance paste.
8. A thick film porous ceramic heat-generating body as described in claim 7, characterized in that: the base metal resistance slurry is an alloy slurry containing one or more of nickel, chromium, iron and titanium.
9. A thick film porous ceramic heat-generating body as described in claim 1, characterized in that: the expansion coefficient of the insulating ceramic transition layer is the same as that of the porous ceramic matrix and that of the thick-film heating circuit layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920228502.8U CN209749814U (en) | 2019-02-21 | 2019-02-21 | Thick film porous ceramic heating body |
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| CN201920228502.8U CN209749814U (en) | 2019-02-21 | 2019-02-21 | Thick film porous ceramic heating body |
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| CN209749814U true CN209749814U (en) | 2019-12-10 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635098A (en) * | 2020-12-16 | 2021-04-09 | 东莞市华芯联科技有限公司 | Ceramic resistance type sensor transition layer slurry and preparation method thereof |
| CN113040430A (en) * | 2020-04-27 | 2021-06-29 | 四川三联新材料有限公司 | Heating element for heating appliance and preparation method thereof |
| CN113115986A (en) * | 2021-04-21 | 2021-07-16 | 东莞市阿尔法电子科技有限公司 | Atomizing core and cigarette bullet |
| CN114532606A (en) * | 2020-11-24 | 2022-05-27 | 深圳雾芯科技有限公司 | Atomizing core reaches atomizer and electron cigarette including it |
| WO2022121579A1 (en) * | 2020-12-11 | 2022-06-16 | 常州市派腾电子技术服务有限公司 | Atomizing core, atomizer, aerosol generating device and method for machining atomizing core |
| WO2022127651A1 (en) * | 2020-12-14 | 2022-06-23 | 深圳麦克韦尔科技有限公司 | Heating assembly and electronic atomization device |
| CN115028473A (en) * | 2022-05-06 | 2022-09-09 | 深圳市吉迩技术有限公司 | Method for preparing porous ceramic coated with metal coating and aerosol generating device |
-
2019
- 2019-02-21 CN CN201920228502.8U patent/CN209749814U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040430A (en) * | 2020-04-27 | 2021-06-29 | 四川三联新材料有限公司 | Heating element for heating appliance and preparation method thereof |
| CN114532606A (en) * | 2020-11-24 | 2022-05-27 | 深圳雾芯科技有限公司 | Atomizing core reaches atomizer and electron cigarette including it |
| WO2022121579A1 (en) * | 2020-12-11 | 2022-06-16 | 常州市派腾电子技术服务有限公司 | Atomizing core, atomizer, aerosol generating device and method for machining atomizing core |
| WO2022127651A1 (en) * | 2020-12-14 | 2022-06-23 | 深圳麦克韦尔科技有限公司 | Heating assembly and electronic atomization device |
| CN112635098A (en) * | 2020-12-16 | 2021-04-09 | 东莞市华芯联科技有限公司 | Ceramic resistance type sensor transition layer slurry and preparation method thereof |
| CN113115986A (en) * | 2021-04-21 | 2021-07-16 | 东莞市阿尔法电子科技有限公司 | Atomizing core and cigarette bullet |
| CN115028473A (en) * | 2022-05-06 | 2022-09-09 | 深圳市吉迩技术有限公司 | Method for preparing porous ceramic coated with metal coating and aerosol generating device |
| CN115028473B (en) * | 2022-05-06 | 2024-02-09 | 深圳市吉迩技术有限公司 | Method for preparing porous ceramic coated with metal coating and aerosol generating device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210408 Address after: 523000 one of No.45 Yinhu Road, Qiaotou town, Dongguan City, Guangdong Province Patentee after: Dongguan Guoyan porcelain Electronics Co.,Ltd. Address before: 523000 Sima Village Industrial Zone, Changping Town, Dongguan City, Guangdong Province Patentee before: Key Material Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230807 Address after: 517000 plant of Guangdong hemi Technology Co., Ltd. in the west of Binjiang Road and in the south of Gaoxin fifth road, high tech Zone, Heyuan City, Guangdong Province Patentee after: GUANGDONG GUOYAN NEW MATERIAL Co.,Ltd. Address before: 523000 one of No.45 Yinhu Road, Qiaotou town, Dongguan City, Guangdong Province Patentee before: Dongguan Guoyan porcelain Electronics Co.,Ltd. |
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| TR01 | Transfer of patent right |