CN113079598B - Flexible stretchable electric heating device based on paper-aluminum-plastic packaging material - Google Patents
Flexible stretchable electric heating device based on paper-aluminum-plastic packaging material Download PDFInfo
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- CN113079598B CN113079598B CN202110240859.XA CN202110240859A CN113079598B CN 113079598 B CN113079598 B CN 113079598B CN 202110240859 A CN202110240859 A CN 202110240859A CN 113079598 B CN113079598 B CN 113079598B
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- tetra pak
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- 238000005485 electric heating Methods 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 title claims abstract description 16
- 229920003023 plastic Polymers 0.000 title claims abstract description 16
- 239000005022 packaging material Substances 0.000 title claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000011888 foil Substances 0.000 claims abstract description 29
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000004698 Polyethylene Substances 0.000 claims description 21
- 239000011087 paperboard Substances 0.000 claims description 13
- 238000004806 packaging method and process Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000123 paper Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 5
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 241001435619 Lile Species 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000005030 aluminium foil Substances 0.000 description 3
- 239000011111 cardboard Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 235000021056 liquid food Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/03—Electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
Landscapes
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a flexible stretchable electric heating device based on a paper aluminum plastic packaging material, wherein an electric heater comprises four parts: a conductor, a conductor carrying structure, an electrode and a power supply. The conductor, the conductor bearing structure and the electrode form a flexible electric heater main body, the flexible electric heater main body is made of a tetra Pak package, an aluminum foil layer of the tetra Pak package is used as the conductor, and the Joule heating effect of the conductor is utilized. When in use, the direct current or alternating current power supply is connected to the two ends of the electrode, and heat can be generated. The tetra pak package can be cut into a stretchable structure by adopting a paper-cut technology so as to realize the wearable electric heater. The waste tetra Pak electric heater can be processed into the environment-friendly flexible electric heater by a simple process, the added value of the waste tetra Pak electric heater is improved, and the flexible electric heater can be applied to the fields of thermal information display, wearable thermal diagnosis and treatment and the like.
Description
Technical Field
The invention relates to a heating device, in particular to a flexible stretchable electric heating device based on a paper-aluminum-plastic packaging material.
Background
When the current flows through the conductor in the electrified state, the resistance of the conductor is overcome to do work, and the resistance wire with a certain wire diameter continuously heats, which is called joule heating effect. The electric resistance heater is an element with certain electric heating function made of conductor. Electrical heating is a basic property of a conductor, and is related to the size, material and thickness of the current conductor, and the main function is to convert electrical energy into heat energy. In recent years, with the rapid development of flexible electronic technology, flexible electric heaters have been developed rapidly, which are made of flexible materials capable of freely bending and changing according to the movement of a wearing part of a wearer. Mechanical properties that match uniformly anywhere on the body and reliable heating function of the product are two basic requirements of wearable electric heaters. However, achieving both of these main attributes at the same time remains very challenging. Research on discomfort relief between electronic products and human bodies relates to a plurality of fields such as structural design, ultra-thin films and excellent performance research and development of nano materials. The flexible electric heater also has the characteristics of uniform heating, durability and the like, and the performance and the cost are considered in the selection and processing process of materials, so that the cost reduction is one of important targets of putting the flexible electric heater into practical production and application.
On the other hand, Tetra Pak is a composite paper package produced by adopting a full aseptic production line of the swedish Tetra Pak company, and can be used for packaging liquid foods such as milk, fruit juice and the like. The tetra Pak Li le package has 6 layers and is formed by laminating and compounding paper, aluminum foil and polyethylene plastic. How to improve the recycling efficiency of the tetra pak package is a major problem of energy conservation and emission reduction at present. At present, the main stream recycling mode is to decompose the tetra pak packaging material into raw materials such as plastics, metals, cellulose and the like again for utilization, which not only consumes time and energy, but also can cause secondary pollution in the decomposition process.
Disclosure of Invention
The object of the present invention is to overcome the drawbacks of the prior art mentioned above and to provide a flexible and stretchable electric heating device based on paper-aluminium-plastic packaging material, which is low in cost and at the same time allows recycling of waste tetra packs.
In order to achieve the above purpose, the flexible stretchable electric heating device based on the paper-aluminum-plastic packaging material comprises a power supply and a flexible electric heater body. Wherein the conductor, the conductor carrying structure and the electrodes comprised by the flexible electric heater body are all made of tetra pak material.
The tetra Pak packaging comprises a tetra Pak aluminum foil layer outer PE layer, a tetra Pak packaging aluminum foil layer, a tetra Pak packaging paperboard layer inner PE layer, a tetra Pak packaging paperboard layer and a tetra Pak packaging paperboard layer outer PE layer which are sequentially distributed from top to bottom.
The aluminum foil layer in the tetra pak package acts as a conductor, taking advantage of its high electrical conductivity and joule heating effects to achieve electrical heating. The aluminum foil layer can be subjected to patterning design through a paper-cutting technology, and can be cut into any shape such as a snake shape, an S shape, a spiral line shape and the like. The rest materials such as the paperboard layer, the PE layer and the like in the tetra Pak packaging are used as conductor bearing structures to support the flexible electric heater.
During manufacturing, the external PE layer of the tetra Pak aluminum foil layer at the end part of the flexible electric heater conductor is removed by adopting a mechanical stripping, chemical corrosion or heat treatment method so as to expose the tetra Pak aluminum foil layer to be used as an electrode and be connected with an external power supply.
The invention has the following beneficial effects:
when the flexible stretchable electric heating device based on the paper-aluminum-plastic packaging material is specifically operated, a tetra Pak package is directly adopted to be processed into the flexible electric heater main body, wherein the tetra Pak package has the characteristics of flexibility and low cost, the raw material cost of the electric heating device is obviously reduced, meanwhile, the process is simple, and the flexible stretchable electric heating device can be processed into various patterns and shapes according to actual use requirements by combining with the design flexibility of a paper-cutting process. During manufacturing, the waste tetra Pak packaging can be used, so that the effective utilization of solid waste resources is realized, and the added value of the waste tetra Pak packaging is greatly improved.
Drawings
FIG. 1 is a schematic view of a flexible electric heater according to the present invention;
FIG. 2 is a photograph of a real object of an electric heater made of aluminum foil of a tetra Pak pack according to the present invention by cutting in a serpentine shape;
FIG. 3 is an infrared thermography of an electrical heater made from serpentine cuts to an aluminum foil of a tetra pack of the present invention in the energized state;
FIG. 4 is a temperature-time graph of the heat generation and dissipation process of an electric heater made of aluminum foil of tetra Pak of the present invention using serpentine cutting;
fig. 5 is a pictorial view of a stretchable electric heater made by paper-cut flower drawing technology for tetra pak packaging in accordance with the present invention.
Wherein, 1 is the flexible electric heater main part, 2 is leading-out electrode, 3 is the power, 4 is the outside PE layer of lile aluminium foil layer, 5 is lile packing aluminium foil layer (the conductor of electric heater), 6 is lile packing cardboard layer, 7 is the inside PE layer of lile packing cardboard layer, 8 is the outside PE layer of lile packing cardboard layer.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the flexible stretchable electric heating device based on paper-aluminum-plastic packaging material of the present invention comprises a power source 3 and a flexible electric heater body 1, wherein the flexible electric heater body 1 is made of tetra pak. The tetra pak package comprises a tetra pak aluminum foil layer outer PE layer 4, a tetra pak aluminum foil layer 5, a tetra pak paperboard layer inner PE layer 7, a tetra pak paperboard layer 6 and a tetra pak paperboard layer outer PE layer 8 which are sequentially distributed from top to bottom.
The flexible electric heater body 1 comprises three parts, a conductor carrying structure and an electrode. The conductor of the flexible electric heater main body 1 is a tetra Pak aluminum foil layer 5, and electric heating is realized by utilizing the joule heating effect of the aluminum foil. The conductor bearing structure of the flexible electric heater main body 1 is composed of a tetra pak aluminum foil layer outer PE layer 4, a tetra pak paperboard layer inner PE layer 7, a tetra pak paperboard layer 6 and a tetra pak paperboard layer outer PE layer 8, and the layers of materials are flexible materials and play a supporting role in the conductor aluminum foil layer. The tetra Pak aluminum foil layer 5 in the flexible electric heater body 1 is connected with a power supply 3 through an extraction electrode 2, during specific operation, a mechanical stripping, chemical corrosion or heat treatment method is adopted to remove the external PE layer 4 of the tetra Pak aluminum foil layer at the end part of the flexible electric heater body 1 so as to expose a small part of the tetra Pak aluminum foil layer 5, the tetra Pak aluminum foil layer is used as the extraction electrode 2 and is connected with the power supply 3, the power supply adopts a direct current power supply or an alternating current power supply, and the flexible electric heater can be expanded through series connection or parallel connection of circuits and the like so as to produce a larger-scale electric heating device module.
The first embodiment,
The shape of the flexible electric heater body 1 in this embodiment is designed as a serpentine structure. Referring to fig. 2, a direct current voltage of 1V is applied to both ends of the aluminum foil layer 5 of the tetra pak package, the generated temperature can reach 72.9 ℃, the picture taken by the infrared camera during heat generation is shown in fig. 3, and the temperature-time curve of the heat generation and heat dissipation process of the electric heater is shown in fig. 4.
Example II,
Referring to fig. 5, the tetra pak package is cut into a stretchable structure by using a paper-cut stretch technology to form a flexible stretchable electric heater, and tensile stress is applied to two ends of the flexible stretchable electric heater, so that the electric heater can deform to different degrees along with the change of the tensile stress, thereby adapting to some application scenes needing to tolerate large strain. During the strain increase, the electrical resistance of the tetra pack aluminium foil layer 5 does not change significantly and its electrical heating function is maintained. Therefore, the wearable thermal diagnosis and treatment equipment can meet the requirements of the wearable thermal diagnosis and treatment equipment.
It is to be expressly understood, however, that the drawings are for the purpose of illustration only and are not intended as a definition of the limits of the patent; the shape of the flexible electric heater body 1 is not limited to the serpentine pattern and the paper-cut garland pattern, and can be designed and processed by combining the paper-cut technology, the paper folding technology and the practical application requirements, for example, the flexible electric heater body can be cut and processed into various patterns such as an S-shaped pattern, a spiral line pattern, a spring pattern and the like. The invention has compact structure, simple production and manufacturing process and low cost, and is an electronic component with high cost performance.
Claims (3)
1. A flexible stretchable electric heating device based on a paper-aluminum-plastic packaging material is characterized by comprising a power supply (3) and a flexible electric heater main body (1), wherein the flexible electric heater main body (1) is made of paper-aluminum-plastic packaging, and a tetra Pak aluminum foil layer (5) in the flexible electric heater main body (1) is used as a conductor;
the flexible electric heater is characterized by also comprising an extraction electrode (2), wherein a tetra Pak aluminum foil layer (5) in the flexible electric heater main body (1) is connected with a power supply (3) through the extraction electrode (2);
during manufacturing, the PE layer (4) outside the tetra Pak aluminum foil layer at the end part of the flexible electric heater main body (1) is removed by adopting a mechanical stripping, chemical corrosion or heat treatment method to expose the tetra Pak aluminum foil layer (5), and the exposed tetra Pak aluminum foil layer (5) is used as an extraction electrode (2) to be connected with a power supply (3);
the paper aluminum plastic package is a tetra pak package, and the tetra pak package is a paper aluminum plastic composite material and comprises a tetra pak aluminum foil layer external polyethylene PE layer (4), a tetra pak aluminum foil layer (5), a tetra pak paperboard layer internal PE layer (7), a tetra pak paperboard layer (6) and a tetra pak paperboard layer external PE layer (8) which are sequentially distributed from top to bottom.
2. A flexible stretchable electric heating device based on paper aluminum plastic packaging material according to claim 1 characterized in that the shape of the flexible electric heater body (1) is a serpentine structure, an S-shaped structure or a spiral line type structure.
3. A flexible and stretchable electric heating device based on paper aluminum plastic packaging material according to claim 1, characterized in that the power source adopts a direct current power source or an alternating current power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110240859.XA CN113079598B (en) | 2021-03-04 | 2021-03-04 | Flexible stretchable electric heating device based on paper-aluminum-plastic packaging material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110240859.XA CN113079598B (en) | 2021-03-04 | 2021-03-04 | Flexible stretchable electric heating device based on paper-aluminum-plastic packaging material |
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| Publication Number | Publication Date |
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| CN113079598A CN113079598A (en) | 2021-07-06 |
| CN113079598B true CN113079598B (en) | 2022-07-12 |
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| CN114666927B (en) * | 2022-03-29 | 2023-03-31 | 北京航空航天大学 | Multidirectional stretchable electric heating deicing material and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2489539Y (en) * | 2001-07-13 | 2002-05-01 | 冯季强 | Flexible electric heating sheet |
| CN101081096A (en) * | 2006-05-30 | 2007-12-05 | 陆思烨 | Far infrared Warm-keeping underclothes capable of generating heat |
| KR20090121720A (en) * | 2008-05-22 | 2009-11-26 | 김태원 | A electricity hypocaust panel by using carbon heating element |
| CN208017389U (en) * | 2017-06-27 | 2018-10-30 | 青岛国力丰包装有限公司 | A kind of nature Tetra Pak |
| CN110856289A (en) * | 2018-08-20 | 2020-02-28 | 苏州汉纳材料科技有限公司 | Flexible heating film and die cutting processing method and equipment thereof |
-
2021
- 2021-03-04 CN CN202110240859.XA patent/CN113079598B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2489539Y (en) * | 2001-07-13 | 2002-05-01 | 冯季强 | Flexible electric heating sheet |
| CN101081096A (en) * | 2006-05-30 | 2007-12-05 | 陆思烨 | Far infrared Warm-keeping underclothes capable of generating heat |
| KR20090121720A (en) * | 2008-05-22 | 2009-11-26 | 김태원 | A electricity hypocaust panel by using carbon heating element |
| CN208017389U (en) * | 2017-06-27 | 2018-10-30 | 青岛国力丰包装有限公司 | A kind of nature Tetra Pak |
| CN110856289A (en) * | 2018-08-20 | 2020-02-28 | 苏州汉纳材料科技有限公司 | Flexible heating film and die cutting processing method and equipment thereof |
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| CN113079598A (en) | 2021-07-06 |
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Inventor after: Yin Haolong Inventor after: Li Chen Inventor after: Li Weijie Inventor after: Zhao Zhenhua Inventor after: Wang Guangjin Inventor after: Fang Huajing Inventor after: Wang Hong Inventor before: Fang Huajing Inventor before: Yin Haolong Inventor before: Zhao Zhenhua Inventor before: Li Chen Inventor before: Wang Guangjin Inventor before: Li Weijie Inventor before: Wang Hong |
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Inventor after: Fang Huajing Inventor after: Yin Haolong Inventor after: Li Chen Inventor after: Li Weijie Inventor after: Zhao Zhenhua Inventor after: Wang Guangjin Inventor after: Wang Hong Inventor before: Yin Haolong Inventor before: Li Chen Inventor before: Li Weijie Inventor before: Zhao Zhenhua Inventor before: Wang Guangjin Inventor before: Fang Huajing Inventor before: Wang Hong |
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