CN111418906A - Flexible heating element, preparation method and application thereof - Google Patents
Flexible heating element, preparation method and application thereof Download PDFInfo
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- CN111418906A CN111418906A CN202010194214.2A CN202010194214A CN111418906A CN 111418906 A CN111418906 A CN 111418906A CN 202010194214 A CN202010194214 A CN 202010194214A CN 111418906 A CN111418906 A CN 111418906A
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Abstract
The invention discloses a flexible heating element which sequentially comprises a base layer (A), a heating layer (B) and a protective layer (C). The invention also discloses the flexible heating element and application of the flexible heating element in heating non-combustible cigarettes. The flexible heating element is simple in preparation method, can be used for heating non-combustible cigarettes to avoid direct contact of the non-combustible cigarettes with tobacco, and prolongs the service life of the non-combustible cigarettes.
Description
Technical Field
The invention belongs to the field of novel tobacco, and particularly relates to a flexible heating element, and a preparation method and application thereof.
Background
The heating element is an extremely important part in the field of heating non-combustible cigarettes, and the heating element is used as a heat source for heating the non-combustible cigarettes and directly influences the heating temperature and the smoking taste of the cigarettes. At present, most of common heating elements on the market print heating circuits on a substrate material in a printed circuit mode, and finally form heating sheets or heating tubes through high-temperature sintering. The heating element in the form has a certain advantage, so that the heating element is widely concerned in the industry at present, but the heating effect of the heating element is limited by the design of a printed circuit, so that the heating effect of the heating element on the cut tobacco is not ideal. Because the existing heating element is mostly made of rigid materials, the heating element is easy to damage by external force in the using process, and the service life is short. The heating elements used in the presently disclosed patents have respective disadvantages of low heating efficiency, poor stability, insufficient uniformity, susceptibility to damage, and the like. Therefore, a novel heating element is needed, which can stably and uniformly generate heat and improve the absorption experience.
The carbon nano material is a novel film or sheet heating material with uniform nano holes, has the structural performance characteristics of light weight, flexibility, electric conduction, heat conduction, high specific surface area, good stability and the like, has high temperature rise and fall speed, generates heat uniformly and stably, and is an excellent choice as a heating source. However, the carbon nano material is light and flexible, so that the carbon nano material is difficult to be directly used for heating without treatment, and the carbon nano material serving as a heating element is greatly limited to exert the excellent performance.
The invention abandons the prior circuit printing mode, replaces the prior heating element with a material which generates heat more stably and uniformly, and improves the heating effect. By changing the material and the attribute of the existing heating element, the heating source has enough toughness to accept the impact of external force in the using process, and the service life is prolonged. The strength of the carbon nano material is improved, and the application of the carbon nano material in the field of heating non-combustion cigarettes is disclosed for the first time.
Disclosure of Invention
The invention discloses a flexible heating element which sequentially comprises a base layer A, a heating layer B and a protective layer C.
Preferably, the base layer a is a flexible PCB1, one surface of which is plated with a conductive metal, an etched area 2 is formed in the middle of the plated conductive metal, and the remaining unetched area is a conductive electrode 3.
Preferably, the heating layer B is an electrically and thermally conductive carbon nanomaterial layer 4; the protective layer C is an insulating temperature-resistant corrosion-resistant flexible protective film layer 7.
Preferably, it also comprises a pin 6, which is connected to said conductive electrode 3 by means of a copper immersion solder 5. The pin 6 is used for external power supply.
The second aspect of the invention discloses a preparation method of the flexible heating element, which comprises the following steps:
① etching the middle area of the surface of the PCB1 plated with conductive metal to form an etched area 2, the remaining unetched area is a conductive electrode 3, the PCB1 is an insulator, the etched area 2 forms an insulating area, and the remaining unetched area is a conductive area of the conductive electrode 3.
② at step ①, covering the carbon nanometer material layer 4 and the flexible protective film layer 7 on the surface of the PCB soft board 1 with the etching area 2, and then pressing at high temperature;
③ and leading out the pin 6 from the conductive electrode 3 of the composite layer obtained in the step ②, and obtaining the flexible heating element.
Preferably, the conductive metal plated in step ① is one of silver, copper, and aluminum, the etchant used is one of an acidic or alkaline copper chloride solution, ferric chloride solution, or ammonium persulfate solution, which are highly corrosive, preferably acidic copper chloride solution, and the area S of the flexible printed circuit board PCB1 is1The area of the etching region 2 is S2The area of the conductive electrode 3 is S3Then S is2<S1，S3＝S1-S2And S is1/4≦S3≦S1A/3; conductive electricityThe electrode 3 is not contacted with the chemical solution, so that the conductive metal on the surface is reserved, a conductive area is formed, and the conductive area has the characteristics of good conductivity and extremely small resistance.
Wherein the area of the carbon nano material layer 4 is S4The area of the flexible protective film layer 7 is S5Then 3S1/4<S4<S1，S5＝S1. The carbon nano material layer 4 has the structural performance characteristics of light weight, flexibility, electric conduction, heat conduction, high specific surface area, good stability and the like; the flexible protective film layer 7 has good insulativity, high temperature resistance and corrosion resistance.
Preferably, the elevated temperature described in step ② is 250-350 ℃.
Preferably, the step ③ of leading out the lead 6 from the conductive electrode 3 includes the steps of punching the nano material layer 4 and the flexible protective film layer 7 covering the conductive electrode 3 region of the composite layer obtained in the step ②, and connecting the lead 6 with the conductive electrode 3 by the copper-clad solder 5.
The third aspect of the invention discloses the application of the flexible heating element in the field of heating non-combustible cigarettes.
Preferably, the flexible heating element is used with a support body 8, the support body 8 being rigid and thermally conductive. The support body 8 may be made of metal (such as copper, iron, stainless steel, etc.) or non-metal (such as ceramic, glass, etc.) material with good thermal conductivity and corrosion resistance, and may be cup-shaped, cylindrical, sheet-shaped, etc., and the flexible heating element may surround the support body 8 in a peripheral column shape or be attached to the inner wall of the cup-shaped, cylindrical, etc. support body 8.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention prepares the carbon nano material into a flexible heating element, and in order to enhance the strength of the heating element, the base layer adopts the etching process to ensure that the flexible PCB not only can be used as a base layer protective layer, but also can be used as an electrode for leading the carbon nano material to be conductive, thereby achieving two purposes.
2. Secondly, the area of the carbon nano material is smaller than that of the base layer and the flexible protective film layer 7, so that the carbon nano material can be completely protected between the upper layer and the lower layer, and the three-layer integrated structure can be firmer by high-temperature pressing at about 300 ℃; the welding spot is led out from the base layer conductive electrode by adopting a copper deposition process, so that the welding spot is firmer and is not easy to fall off.
3. The invention uses the characteristic of flexibility of the heating element to wrap the heating element on the support body with higher heat conductivity or embed the heating element in the rigid support body, thereby avoiding the direct contact between the heating element and tobacco and prolonging the service life of the heating element.
4. The invention enhances the strength of the carbon nano material by packaging the carbon nano material, and prolongs the service life of the heating element; meanwhile, the characteristics of high temperature rise and drop rate and stable and uniform heating are applied, and the heating element is applied to the field of heating non-combustible tobacco, so that the smoking experience of a user can be enhanced.
Drawings
Fig. 1 is a packaging structure of a flexible heating element according to the present invention.
Fig. 2 is a cross-sectional view of a flexible heating element of the present invention.
FIG. 3 is a structural diagram of a cigarette which is not burnt by heating the flexible heating element and the support.
Description of the drawings: a-a base layer, B-a heating layer and C-a protective layer; the cigarette comprises a substrate, a Printed Circuit Board (PCB) flexible board layer, a 2-etching area, a 3-conductive electrode, a 4-carbon nano material layer, a 5-copper deposition welding spot, a 6-pin, a 7-flexible protective film layer, an 8-support body and a 9-non-burning cigarette.
Detailed Description
The invention is further illustrated by the following examples and figures, which are only intended to provide a better understanding of the present invention and are not intended to be limiting.
As shown in fig. 3, a flexible heating element of the present invention is wound around the periphery of a stainless steel cylindrical support 8. The heating element sequentially comprises a base layer A, a heating layer B and a protective layer C; the base layer A is a PCB soft board 1, one surface of which is plated with conductive metal, an etching area is arranged in the middle of the plated conductive metal, and the rest area which is not etched is a conductive electrode 3; the heating layer B is an electric and heat conducting carbon nano material layer 4; the protective layer C is an insulating temperature-resistant corrosion-resistant flexible protective film layer 7; area S of the flexible printed circuit board PCB11The area of the etching region 2 is S2The area of the conductive electrode 3 is S3Then S is2<S1，S3＝S1-S2And S is1/4≦S3≦S1/3. And the pin 6 is connected with the conductive electrode 3 through a copper-clad welding spot 5.
The non-combustible cigarette 9 is placed into the cylindrical support body 8, the pin 6 is externally connected with a power supply, and the heating element generates heat to heat the non-combustible cigarette 9 to generate smoke for a smoker to smoke.
Claims (10)
1. A flexible heating element is characterized by sequentially comprising a base layer (A), a heating layer (B) and a protective layer (C).
2. Flexible heating element according to claim 1, characterized in that the substrate (A) is a PCB flex (1) plated with a conductive metal on one side, with an etched area (2) in the middle of the plated conductive metal, and the remaining unetched area is the conductive electrode (3).
3. The flexible heating element according to claim 1, wherein the heat generating layer (B) is an electrically and thermally conductive carbon nanomaterial layer (4); the protective layer (C) is an insulating temperature-resistant corrosion-resistant flexible protective film layer (7).
4. Flexible heating element according to claim 2, characterized in that it further comprises a pin (6) connected to the conductive electrode (3).
5. A method for manufacturing a flexible heating element according to claims 1-4, characterized by comprising the steps of:
① etching the middle area of the surface of the PCB flexible board layer (1) plated with the conductive metal to form an etched area (2), and the rest un-etched area is a conductive electrode (3);
② at step ①, covering the carbon nanometer material layer (4) and the flexible protective film layer (7) on the surface of the PCB soft board layer (1) with the etching area (2), then pressing at high temperature;
③ and leading out pins (6) from the conductive electrodes (3) of the composite layer obtained in the step ② to obtain the flexible heating element.
6. The method of claim 5, wherein the conductive metal plated in step ① is one of silver, copper and aluminum, the etchant used is one of an acidic or alkaline copper chloride solution, ferric chloride solution or ammonium persulfate solution, and the area of the flexible Printed Circuit Board (PCB) layer (1) is S1The area of the etching region (2) is S2The area of the conductive electrode (3) is S3Then S is2<S1，S3＝S1-S2And S is1/4≦S3≦S1/3；
Wherein the area of the carbon nano material layer (4) is S4The area of the flexible protective film layer (7) is S5Then 3S1/4<S4<S1，S5＝S1。
7. The method as claimed in claim 5, wherein the high temperature in step ② is 250-350 ℃.
8. The method of claim 5, wherein the step ③ of extracting the lead (6) from the conductive electrode (3) comprises the steps of perforating the nanomaterial layer (4) and the flexible protective film layer (7) covering the conductive electrode (3) region of the composite layer obtained in the step ②, and connecting the lead (6) with the conductive electrode (3) by the copper-deposition solder (5).
9. Use of a flexible heat-generating element according to any one of claims 1 to 4 for heating a non-combustible cigarette.
10. Use according to claim 9, the flexible heating element being used with a support (8), the support (8) being rigid and thermally conductive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194214.2A CN111418906A (en) | 2020-03-19 | 2020-03-19 | Flexible heating element, preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010194214.2A CN111418906A (en) | 2020-03-19 | 2020-03-19 | Flexible heating element, preparation method and application thereof |
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| CN111418906A true CN111418906A (en) | 2020-07-17 |
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| CN202010194214.2A Pending CN111418906A (en) | 2020-03-19 | 2020-03-19 | Flexible heating element, preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450498A (en) * | 2020-10-30 | 2021-03-09 | 深圳市基克纳科技有限公司 | Heating element and mist device |
| CN113966018A (en) * | 2021-11-17 | 2022-01-21 | 中山赛特奥日用科技有限公司 | Heating element and manufacturing method thereof |
| WO2022063131A1 (en) * | 2020-09-22 | 2022-03-31 | 深圳市合元科技有限公司 | Aerosol generation device and infrared heater |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006140377A (en) * | 2004-11-15 | 2006-06-01 | Matsushita Electric Ind Co Ltd | Sheet-form circuit board |
| JP2008293870A (en) * | 2007-05-28 | 2008-12-04 | Japan Pionics Co Ltd | Planar heating element and manufacturing method therefor |
| WO2018114849A1 (en) * | 2016-12-22 | 2018-06-28 | Philip Morris Products S.A. | Aerosol-generating system with pairs of electrodes |
| WO2018158081A1 (en) * | 2017-02-28 | 2018-09-07 | Philip Morris Products S.A. | Aerosol-generating system with electrodes and sensors |
| CN207854207U (en) * | 2018-01-11 | 2018-09-11 | 安徽宇航派蒙防辐射科技股份有限公司 | A kind of intelligence wearable dress ornament graphene heating film |
| CN207912055U (en) * | 2018-01-11 | 2018-09-28 | 广东中烟工业有限责任公司 | One grows tobacco electric heater unit |
| CN208638742U (en) * | 2018-08-16 | 2019-03-22 | 湖南中烟工业有限责任公司 | A kind of thick film heating body and low temperature smoking set |
| CN109674094A (en) * | 2019-01-26 | 2019-04-26 | 深圳市合元科技有限公司 | Electronic smoke atomizer and electronic cigarette, atomizing component preparation method |
| WO2019111352A1 (en) * | 2017-12-06 | 2019-06-13 | 日本たばこ産業株式会社 | Aerosol inhaler cartridge, aerosol inhaler, and metal heater for aerosol inhaler |
| US20200046028A1 (en) * | 2017-04-18 | 2020-02-13 | Amosense Co., Ltd | Heater for cigarette-type electronic cigarette device |
| CN111053298A (en) * | 2019-12-20 | 2020-04-24 | 深圳麦克韦尔科技有限公司 | Flexible heating element and manufacturing method thereof, flexible heating assembly and aerosol generator |
-
2020
- 2020-03-19 CN CN202010194214.2A patent/CN111418906A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006140377A (en) * | 2004-11-15 | 2006-06-01 | Matsushita Electric Ind Co Ltd | Sheet-form circuit board |
| JP2008293870A (en) * | 2007-05-28 | 2008-12-04 | Japan Pionics Co Ltd | Planar heating element and manufacturing method therefor |
| WO2018114849A1 (en) * | 2016-12-22 | 2018-06-28 | Philip Morris Products S.A. | Aerosol-generating system with pairs of electrodes |
| CN110022705A (en) * | 2016-12-22 | 2019-07-16 | 菲利普莫里斯生产公司 | Aerosol with electrode pair generates system |
| WO2018158081A1 (en) * | 2017-02-28 | 2018-09-07 | Philip Morris Products S.A. | Aerosol-generating system with electrodes and sensors |
| US20200046028A1 (en) * | 2017-04-18 | 2020-02-13 | Amosense Co., Ltd | Heater for cigarette-type electronic cigarette device |
| WO2019111352A1 (en) * | 2017-12-06 | 2019-06-13 | 日本たばこ産業株式会社 | Aerosol inhaler cartridge, aerosol inhaler, and metal heater for aerosol inhaler |
| CN207854207U (en) * | 2018-01-11 | 2018-09-11 | 安徽宇航派蒙防辐射科技股份有限公司 | A kind of intelligence wearable dress ornament graphene heating film |
| CN207912055U (en) * | 2018-01-11 | 2018-09-28 | 广东中烟工业有限责任公司 | One grows tobacco electric heater unit |
| CN208638742U (en) * | 2018-08-16 | 2019-03-22 | 湖南中烟工业有限责任公司 | A kind of thick film heating body and low temperature smoking set |
| CN109674094A (en) * | 2019-01-26 | 2019-04-26 | 深圳市合元科技有限公司 | Electronic smoke atomizer and electronic cigarette, atomizing component preparation method |
| CN111053298A (en) * | 2019-12-20 | 2020-04-24 | 深圳麦克韦尔科技有限公司 | Flexible heating element and manufacturing method thereof, flexible heating assembly and aerosol generator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022063131A1 (en) * | 2020-09-22 | 2022-03-31 | 深圳市合元科技有限公司 | Aerosol generation device and infrared heater |
| CN112450498A (en) * | 2020-10-30 | 2021-03-09 | 深圳市基克纳科技有限公司 | Heating element and mist device |
| CN113966018A (en) * | 2021-11-17 | 2022-01-21 | 中山赛特奥日用科技有限公司 | Heating element and manufacturing method thereof |
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Application publication date: 20200717 |
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| RJ01 | Rejection of invention patent application after publication |