CN210491239U - Textile material, intelligent clothing and heating device with flexible electric heating function - Google Patents
Textile material, intelligent clothing and heating device with flexible electric heating function Download PDFInfo
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- CN210491239U CN210491239U CN201921226746.9U CN201921226746U CN210491239U CN 210491239 U CN210491239 U CN 210491239U CN 201921226746 U CN201921226746 U CN 201921226746U CN 210491239 U CN210491239 U CN 210491239U
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Abstract
The utility model provides a textile material, intelligent clothing and heating device with flexible electric heating function. The textile material is of a laminated structure and sequentially comprises a first textile material layer, a first flexible insulating layer, a flexible heating layer consisting of liquid metal, a second flexible insulating layer and a second textile material layer from bottom to top; the flexible heating layer material is electrically connected with one end of the electrode, and the other end of the electrode is connected with a power supply. Liquid metal generates heat under the circular telegram circumstances, realizes textile material's electrical heating function to this textile material is dressed comfortablely, still can keep electrical heating's stability when taking place deformation, consequently has good application prospect under the environment of clothing field and other needs heating.
Description
Technical Field
The utility model belongs to the technical field of textile material and flexible electronic material technique and specifically relates to a textile material, intelligent clothing and heating device with flexible electric heating function are related to.
Background
The proper temperature is a very important factor for human survival, and the low temperature can cause frostbite of human body and even endanger human life. In cold winter in northern China, the traditional warm-keeping method is to wear thick cotton clothes to prevent the heat loss of the body and ensure the body temperature to be within the normal temperature range. However, the cotton-padded clothes are large in size and weight, so that the cotton-padded clothes are bulky when being worn, and are inconvenient to move freely.
Along with the progress of society, the requirements of people on clothes are gradually improved, and clothes which are attractive, fashionable, comfortable and portable are increasingly popular. In order to increase the heat retention, a heating device such as an electric heating wire or an electric heating tube is generally arranged on the inner layer of the textile material or the clothes, and heat is generated by supplying power. However, the heating wires and the electric heating tubes have large volumes, so that the heating wires and the electric heating tubes have poor fitting performance with textile materials and clothes, and have poor comfort after being worn. At present, technologies such as graphene heating and the like appear in the market, but graphene materials do not have flexibility and cannot normally work under the stress action of stretching, bending and the like, particularly on the positions of knees, elbows and the like.
Therefore, it has been one of the research subjects of the technical workers to realize the textile material with a heating function, comfortable wearing, no foreign body feeling, and flexibility.
SUMMERY OF THE UTILITY MODEL
To the technical current situation in above-mentioned textile garment field, the utility model provides a novel textile material has the electrical heating function, still can keep the electrical heating function simultaneously under conditions such as tensile, crooked to comfortable and easy to wear, free from extraneous object sense.
The utility model provides a technical scheme does: a textile material with a flexible electric heating function is of a laminated structure and sequentially comprises a first textile material layer, a first flexible insulating layer, a flexible heating layer, a second flexible insulating layer and a second textile material layer from bottom to top; the flexible heating layer is made of liquid metal;
the flexible heating layer is electrically connected with one end of the electrode, and the other end of the electrode is connected with a power supply.
In the utility model, flexibility refers to the performance of no external force or deformation such as bending and stretching under the action of external force; elasticity is a flexible one, and refers to a property that can be deformed such as bending and stretching under an external force, and has a certain shape-recovering ability when the external force is removed.
Preferably, the thickness of the flexible heating layer is less than 500um, preferably less than 100um, even less than 10 um.
The liquid metal is a metal conductive material which is liquid at room temperature, has flexibility, and can be stretched, bent and the like. The liquid metal includes, but is not limited to, mercury, gallium indium alloy, gallium indium tin alloy, and transition metals, gallium indium alloy doped with one or more of solid non-metallic elements, gallium indium tin alloy, and the like.
Preferably, the liquid metal is in a pattern structure on the surface of the first flexible insulating layer. The pattern is not limited, and includes one or more patterns of straight lines, sine lines, wavy lines, sawtooth waves, triangular waves, ellipses, rings, coil shapes, heart shapes and the like, which are parallel, crossed, stacked and the like.
The first textile material layer is a fabric formed by one or more of cotton, hemp, wool, silk, wool fabric, fiber and the like, and has flexibility. Preferably, the first textile material layer is elastic. Preferably, the first textile layer has a thickness of 0.25 to 1.0 mm.
The second textile material layer is a fabric formed by one or more of cotton, hemp, wool, silk, wool fabric, fiber and the like, and has flexibility. Preferably, the first textile material layer is elastic. Preferably, the second textile layer has a thickness of 0.25 to 1.0 mm.
The first flexible insulating layer is made of any material, including flexible polymer materials. As a further preferred, the first flexible insulation layer is made of a flexible material having good adhesion capability with the first textile material layer, such as one or more of TPE, TPU, TPV, SBS, SEBS, silica gel, Polydimethylsiloxane (PDMS), polyethylene terephthalate, polyvinyl alcohol, polyvinyl formal, polyethylene, rubber, POE, Ecoflex, and the like. As a further preference, the first flexible insulating layer material has elasticity. Preferably, the thickness of the first flexible insulating layer is 0.05-0.50 mm.
The material of the second flexible insulating layer is not limited and comprises a flexible high polymer material and the like. As a further preferred, the second flexible insulation layer is made of a flexible material having good adhesion capability with the second textile material layer, such as one or more of TPE, TPU, TPV, SBS, SEBS, silica gel, Polydimethylsiloxane (PDMS), polyethylene terephthalate, polyvinyl alcohol, polyvinyl formal, polyethylene, rubber, POE, Ecoflex, and the like. As a further preference, the second flexible insulating layer material has elasticity. Preferably, the thickness of the first flexible insulating layer is 0.05-0.50 mm.
Preferably, the first flexible insulating layer material is doped with carbon-based materials such as carbon and graphene, so that the first flexible insulating layer material can convert heating energy into far infrared rays to realize a far infrared heating function besides meeting the requirement of flexible insulation.
Preferably, the second flexible insulating layer material is doped with carbon-based materials such as carbon and graphene, so that the heating energy can be converted into far infrared rays to realize the far infrared heating function besides the requirement of flexible insulation.
Preferably, a first heat conduction layer is arranged between the first textile material layer and the first flexible insulation layer for improving the heat conduction effect, and the heat conduction material includes, but is not limited to, liquid metal and the like.
Preferably, a second heat conduction layer is arranged between the second textile material layer and the second flexible insulation layer for improving the heat conduction effect, and the heat conduction material includes, but is not limited to, liquid metal and the like.
Preferably, the liquid metal is doped with magnetic particles, that is, the flexible heating layer can also realize a heating function through an alternating magnetic field, so that the heating function of the flexible heating layer can also be realized in a non-electric heating operation mode.
The utility model also provides a preparation method of the textile material with the flexible electric heating function, which comprises a treatment process A on the surface of the first textile material layer and a treatment process B on the surface of the second textile material layer;
process A: preparing a first flexible insulating layer on the surface of the first textile material layer; preparing a flexible heating layer on the surface of the first flexible insulating layer; electrically connecting the liquid metal in the flexible heating layer with one end of an electrode to obtain a composite layer A;
and a process B: preparing a second flexible insulating layer on the surface of the second textile material layer to obtain a composite layer B;
and then, connecting the composite layer A and the composite layer B to enable the second flexible insulating layer to be positioned on the surface of the flexible heating layer.
In the process a, preferably, the first flexible insulating layer is prepared on the surface of the first textile material layer by using a hot pressing method.
In the process a, preferably, a hollow template is adopted, the template is placed on the surface of the first flexible insulating layer, the liquid metal is filled in the hollow of the template through methods such as pouring, coating, printing or hot pressing, and the like, so as to obtain a liquid metal layer, and then the template is removed. The template is used for forming a liquid metal layer, plays a role in positioning the boundary of the liquid metal in the preparation process of the liquid metal layer, and can be directly removed after the liquid metal layer is formed. When the liquid metal layer is in a certain pattern, the template is used for forming the patterned liquid metal layer, the boundary positioning effect of the liquid metal pattern is achieved in the preparation process of the liquid metal layer, and the mold can be directly removed after the patterned liquid metal layer is formed. Therefore, the method can obtain the liquid metal layer with smaller three-dimensional size, especially obtain the liquid metal layer with smaller thickness and width, and the thickness reaches hundreds of microns, preferably less than 500um, more preferably less than 100um, and even less than 10 um.
In the process B, preferably, the second flexible insulating layer is prepared on the surface of the second textile material layer by using a hot pressing method.
In the process B, preferably, a hollow template is adopted, the template is placed on the surface of the second flexible insulating layer, the liquid metal is filled in the hollow of the template by methods such as pouring, coating, printing or hot pressing, and the like, so as to obtain a liquid metal layer, and then the template is removed. The template is used for forming a liquid metal layer, plays a role in positioning the boundary of the liquid metal in the preparation process of the liquid metal layer, and can be directly removed after the liquid metal layer is formed. When the liquid metal layer is in a certain pattern, the template is used for forming the patterned liquid metal layer, the boundary positioning effect of the liquid metal pattern is achieved in the preparation process of the liquid metal layer, and the mold can be directly removed after the patterned liquid metal layer is formed. Therefore, the method can obtain the liquid metal layer with smaller three-dimensional size, especially obtain the liquid metal layer with smaller thickness and width, and the thickness reaches hundreds of microns, preferably less than 500um, more preferably less than 100um, and even less than 10 um.
The method of joining the composite layer a and the composite layer is not limited, and preferably, the composite layer a and the composite layer a are bonded together by thermocompression.
Compared with the prior art, the utility model discloses following technological effect has:
(1) the utility model combines the liquid metal with the textile material substrate, and the liquid metal generates heat under the power-on condition, thereby realizing the electric heating function of the textile material; and, because the liquid metal has the flexibility, can take place deformation such as tensile, bending, not only make this textile material dress comfortable, with dress body laminating nature good, can heat wearing each position of body, still can keep the stability of electrical heating when wearing the body deformation moreover. Especially, when the first textile material layer, the second textile material layer, the first flexible insulating layer and the second flexible insulating layer are elastic, the liquid metal has elasticity, so that the wearing comfort is better, and the electric heating performance can still be kept stable when the liquid metal is deformed.
Therefore, the textile material has good application prospect in the field of clothes, such as functional clothes, intelligent clothes and the like, can realize comfortable wearing and good fit with the body, and can heat various parts of the body, including joint parts, vertebral body parts and the like which are easy to stretch and bend; meanwhile, the textile material can also be used in other environments needing heating, such as mirror defrosting, medical heating rehabilitation devices and the like, and can meet the requirements of mirror surfaces with different sizes and shapes and the requirements of parts to be rehabilitated with different shapes due to the flexibility.
(2) The utility model discloses in, liquid metal layer thickness can reach hundred microns magnitude, and preferred being less than 500um, more preferred being less than 100um, is less than 10um even to can further improve the wearable nature and the travelling comfort of fabric base member, and receive external effects such as folding, rub, extrusion when fabric base member in practical application because the liquid metal layer is ultra-thin and greatly reduced suffers's influence, thereby be favorable to improving its heating performance stability.
(3) The utility model adopts a layer-by-layer preparation method, a first insulating layer is prepared on the surface of a first textile material, and then a liquid metal layer is prepared on the surface of the first insulating layer; preparing a second insulating layer on the surface of the second textile material; then, the second insulating layer is connected to the surface of the liquid metal layer, so that the method has the advantages of simplicity, easiness in control and high yield.
(4) The utility model discloses the preferred mould that adopts prepares liquid metal layer, because the mould effect is different with the mask plate among the prior art, can obtain the less liquid metal layer mould of three-dimensional size on the one hand, on the other hand can conveniently simply get rid of the mould material after filling liquid metal in the mould, thereby can conveniently obtain the less liquid metal layer of three-dimensional size, especially can conveniently obtain the less liquid metal layer of thickness and width, its thickness is ultra-thin, can reach hundred microns of magnitude, it is preferred to be less than 500um, more preferably less than 100um, be less than 10um even.
(5) As an optimized implementation mode, the utility model discloses a hot pressing mode preparation first flexible insulating layer and second flexible insulating layer, can full play textile material's material characteristic, obtain with textile material associativity high, prepare simple, the high flexible insulating layer of yield; then, preparing a liquid metal layer by adopting a mould to obtain ultrathin liquid metal; and finally, bonding the second flexible insulating layer on the second textile material layer and the liquid metal layer together by adopting a hot pressing method. Because the liquid metal is ultra-thin, the problems of overflow, deformation and the like of the liquid metal can be effectively avoided in the hot pressing process, so that the basic structure of the liquid metal can be maintained unaffected, and the stability of the electric heating performance of the liquid metal is effectively improved. Experiments prove that compared with the prior art, the method for preparing the textile material with the flexible electric heating function has the advantages of greatly improving the repeatability, effectively improving the yield, greatly reducing the cost and stabilizing the electric heating performance.
Drawings
The present invention will be described in further detail with reference to the following drawings and examples, which are intended to facilitate the understanding of the present invention and are not intended to limit the invention.
FIG. 1 is a schematic structural diagram of a textile material with flexible electric heating function according to the present invention;
FIG. 2 is a schematic diagram of a process for preparing a textile material with flexible electric heating function according to the present invention;
fig. 3 is a heating effect diagram of the textile material with flexible electric heating function in the stretching state in embodiment 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, which are not intended to limit the invention, but are intended to facilitate the understanding thereof.
The reference numerals in fig. 1 are: the flexible heating layer comprises a first textile material layer 1, a first flexible insulating layer 2, a flexible heating layer 3, a second flexible insulating layer 4, a second textile material layer 5, electrodes 6 and a power supply 7.
Example 1:
as shown in fig. 1, the textile material with elastic electric heating function is a laminated structure, and comprises a first textile material layer 1, a first flexible insulating layer 2, a flexible heating layer 3, a second flexible insulating layer 4, and a second textile material layer 5 from bottom to top. The flexible heating layer 3 is electrically connected with one end of an electrode 6, and the other end of the electrode 6 is connected with a power supply 7.
The flexible heating layer is made of liquid metal GaInSn.
The flexible heating layer is electrically connected with one end of the copper electrode, and the other end of the copper electrode is connected with a voltage source.
The first textile layer 1 is an elastic cotton cloth with a thickness of 0.25-1.0mm, in this example 0.5 mm.
The first textile layer 5 is an elastic cotton cloth with a thickness of 0.25-1.0mm, in this embodiment 0.5 mm.
The first flexible insulating layer 2 consists of polydimethylsiloxane, with a thickness of 0.05-0.50mm, in this example 0.10 mm.
The second flexible insulating layer 4 is composed of polydimethylsiloxane and has a thickness of 0.05 to 0.50mm, in this embodiment 0.10 mm.
The flexible heating layer 3 is made of liquid metal and has a thickness of 0.10 mm.
As shown in fig. 2, the preparation method of the textile material with elastic electric heating function comprises a treatment process a on the surface of a first textile material layer and a treatment process B on the surface of a second textile material layer, which is specifically as follows;
process A:
(1) cutting the first textile material to a desired size and gauge; then, a first flexible insulating layer film is paved on the surface of the first textile material, hot pressing is carried out by a hot press, the hot pressing temperature is 150 ℃, the hot pressing time is 30s, and the first flexible insulating layer film is attached to the surface of the first textile material;
(2) weighing three metals of Ga, In and Sn according to a specific proportion, placing the weighed metals In a beaker, slowly heating the metals to 200 ℃, and stirring the metals to obtain a uniform and stable liquid metal alloy solution; placing a hollow template on the surface of the polydimethylsiloxane membrane, filling a liquid metal alloy solution in the template, and then removing the template to obtain a flexible heating layer in a wave-shaped pattern;
(3) and (3) attaching thin copper sheet electrodes to two ends of the flexible heating layer prepared in the step (2), and coating adhesive colloid to bond the liquid metal and the copper sheet in order to ensure good mechanical contact.
And a process B:
cutting the second textile material to a desired size and gauge; and then, paving a layer of polydimethylsiloxane membrane on the surface of the second textile material, carrying out hot pressing by using a hot press, wherein the hot pressing temperature is 150 ℃, the hot pressing time is 30s, and attaching the polydimethylsiloxane membrane to the surface of the first textile material.
And then, connecting the composite layer A obtained after the treatment in the process A with the composite layer B obtained after the treatment in the process B for hot-pressing bonding, so that the second flexible insulating layer is bonded on the surface of the flexible heating layer.
Selecting a voltage source with voltage of 5V and power of 12W, turning on a control switch of the voltage source, electrifying the flexible heating layer, heating the liquid metal, and increasing the temperature of the textile material by heat conduction. The textile material was stretched under power on and the temperature of the textile material in the stretched state was tested and showed that the heating temperature of the textile material remained stable when the tensile strain reached 50%, as shown in figure 3.
Example 2:
in this embodiment, the structure of the textile material having the elastic electric heating function is substantially the same as that in embodiment 1, except that the flexible heating layer is made of graphene-doped liquid metal GaInSn.
In this embodiment, a preparation method of a textile material having an elastic electrical heating function is substantially the same as that in embodiment 1, except that in the process a, graphene is heated in the preparation process of the liquid metal alloy solution to obtain a uniform and stable graphene-doped liquid metal alloy solution, and the graphene-doped liquid metal alloy solution is filled in a template.
In the embodiment, a voltage source with a voltage of 5V and a power of 12W is selected, a control switch of the voltage source is turned on, the flexible heating layer is electrified, the liquid metal generates heat, and the temperature of the textile material prepared by the method is increased through heat conduction. In addition, the textile material in the embodiment also has a far infrared heating function.
And (3) stretching the textile material under the condition of electrifying, and testing the temperature of the textile material in the stretched state, wherein the test temperature shows that the heating temperature of the textile material is basically kept stable when the stretching strain reaches 50 percent.
Example 3:
in this embodiment, the structure of the textile material having the elastic electric heating function is substantially the same as that of embodiment 1, except that the first flexible insulating layer is graphene-doped polydimethylsiloxane, and the thickness is 0.20 mm.
In this embodiment, a preparation method of a textile material having an elastic electric heating function is substantially the same as that in embodiment 1, except that in the process a, the first flexible insulating layer is made of graphene-doped polydimethylsiloxane and has a thickness of 0.20 mm.
In the embodiment, a voltage source with a voltage of 5V and a power of 12W is selected, a control switch of the voltage source is turned on, the flexible heating layer is electrified, the liquid metal generates heat, and the temperature of the textile material prepared by the method is increased through heat conduction. In addition, the first flexible insulating layer in this embodiment has a far infrared heating function.
And (3) stretching the textile material under the condition of electrifying, and testing the temperature of the textile material in the stretched state, wherein the test temperature shows that the heating temperature of the textile material is basically kept stable when the stretching strain reaches 50 percent.
Example 4:
in this embodiment, the structure of the textile material having the elastic electric heating function is substantially the same as that of embodiment 1, except that a first heat conductive material layer is provided between the first textile material layer and the first flexible insulating layer to improve the heat transfer effect. The first heat conducting material is liquid metal GaInSn, and the thickness is controlled to be 0.2-0.3 mm.
In this example, the preparation method of the textile material with elastic electric heating function is basically the same as that of example 1, except that: step (1) in Process A is as follows:
(1) cutting the first textile material to a desired size and gauge; spreading a layer of liquid metal GaInSn on the surface of a first textile material, spreading a first flexible insulating layer film on the surface of the liquid metal, performing hot pressing by using a hot press, wherein the hot pressing temperature is 150 ℃, the hot pressing time is 30s, and attaching the first flexible insulating layer film to the surface of the first textile material;
in the embodiment, a voltage source with a voltage of 5V and a power of 12W is selected, a control switch of the voltage source is turned on, the flexible heating layer is electrified, the liquid metal generates heat, and the temperature of the textile material prepared by the method is increased through heat conduction. And (3) stretching the textile material under the condition of electrifying, and testing the temperature of the textile material in the stretched state, wherein the test temperature shows that the heating temperature of the textile material is basically kept stable when the stretching strain reaches 50 percent.
Example 5:
in this example, the structure of the textile material having the elastic electric heating function was substantially the same as that of example 1, except that the thickness of the flexible heating layer was 0.05 mm.
The above-mentioned embodiment is to the technical solution of the present invention has been described in detail, it should be understood that the above is only the specific embodiment of the present invention, not used for limiting the present invention, any modification, supplement or similar mode replacement etc. that the principle scope of the present invention is in should be included in the protection scope of the present invention.
Claims (13)
1. A textile material with flexible electric heating function is characterized in that: the flexible heating layer is of a laminated structure and sequentially comprises a first textile material layer, a first flexible insulating layer, a flexible heating layer consisting of liquid metal, a second flexible insulating layer and a second textile material layer from bottom to top; the flexible heating layer is electrically connected with one end of the electrode, and the other end of the electrode is connected with a power supply.
2. The textile material with flexible electric heating function as claimed in claim 1, wherein: the thickness of the flexible heating layer is less than 500 um.
3. The textile material with flexible electric heating function as claimed in claim 2, wherein: the thickness of the flexible heating layer is less than 100 um.
4. A textile material having a flexible electrical heating function as claimed in claim 3, wherein: the thickness of the flexible heating layer is less than 10 um.
5. The textile material with flexible electric heating function as claimed in claim 1, wherein: the liquid metal is in a certain pattern structure on the surface of the first flexible insulating layer.
6. The textile material with flexible electric heating function as claimed in claim 1, wherein: the thickness of the first textile layer is 0.25-1.0 mm.
7. The textile material with flexible electric heating function as claimed in claim 1, wherein: the thickness of the second textile layer is 0.25-1.0 mm.
8. The textile material with flexible electric heating function as claimed in claim 1, wherein: the thickness of the first flexible insulating layer is 0.05-0.50 mm.
9. The textile material with flexible electric heating function as claimed in claim 1, wherein: the thickness of the second flexible insulating layer is 0.05-0.50 mm.
10. The textile material with flexible electric heating function as claimed in claim 1, wherein: a first heat conduction layer is arranged between the first textile material layer and the first flexible insulation layer.
11. The textile material with flexible electric heating function as claimed in claim 1, wherein: a first heat conduction layer is arranged between the second textile material layer and the second flexible insulation layer.
12. An intelligent garment is characterized in that: comprising a textile material with a flexible electric heating function according to any of claims 1 to 11.
13. A heating device is characterized in that: comprising a textile material with a flexible electric heating function according to any of claims 1 to 11.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110351906A (en) * | 2019-07-31 | 2019-10-18 | 宁波韧和科技有限公司 | A kind of textile material with flexible electric heating function, preparation method and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110351906A (en) * | 2019-07-31 | 2019-10-18 | 宁波韧和科技有限公司 | A kind of textile material with flexible electric heating function, preparation method and application |
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