CN111092564A - Wearable generator based on flexible electromagnetic material and preparation method thereof - Google Patents
Wearable generator based on flexible electromagnetic material and preparation method thereof Download PDFInfo
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- CN111092564A CN111092564A CN201811245451.6A CN201811245451A CN111092564A CN 111092564 A CN111092564 A CN 111092564A CN 201811245451 A CN201811245451 A CN 201811245451A CN 111092564 A CN111092564 A CN 111092564A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/06—Influence generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
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Abstract
The invention belongs to the field of electromagnetic induction power generation, and discloses a wearable generator based on a flexible electromagnetic material and a preparation method thereof, wherein the wearable generator comprises a power generation unit and an electrode matched with the power generation unit; when the limbs of the human body move, the flexible electromagnetic material deforms or generates a cutting electromagnetic field, so that induction instantaneous voltage/current is generated under the electromagnetic coupling action of the material, and the induction instantaneous voltage/current is used for charging other wearable devices; the flexible generator with the structure is a very efficient generator design which realizes charging by converting mechanical energy into electric energy. The invention realizes the function of converting mechanical energy generated by human body due to movement into electric energy for providing power supply for the wearable device.
Description
Technical Field
The invention belongs to the field of electromagnetic induction power generation, and particularly relates to a wearable generator based on a flexible electromagnetic material and a preparation method thereof.
Background
Currently, the current state of the art commonly used in the industry is such that:
the rapid development of microelectronic technology, wireless electronic technology, and the wide application of various micro-miniature electronic devices and micro-electromechanical systems in the fields of industry, communication and family life greatly enrich and facilitate the life and work of people. However, in terms of energy supply, the conventional supply method is still adopted, and mainly depends on chemical batteries. Chemical batteries, although widely used because of their convenience advantages, have their own great limitations, such as environmental pollution, energy consumption, etc. With the development of science and technology, some conventional supply methods cannot meet the current needs, so people are eagerly expected to find a novel energy supply method to adapt to the change of the development of modern technology and promote the development of the electronic information related industry.
The flexible generator is a device for converting mechanical energy caused by physical change of a flexible substrate into electric energy, and at present, three types are mainly used: photovoltaic, piezoelectric, and triboelectric. The photovoltaic type flexible generator is characterized in that an organic/inorganic photovoltaic cell is prepared on a flexible substrate, and light energy can be converted into electric energy only in the environment of sunlight or a strong light source in the using process. Furthermore, the problem of working life is one of the weak points of the photovoltaic flexible generator. Piezoelectric nano-generators are mainly proposed by professor wangzhi Of Wangzhonglin Of the national institute Of georgia, 2006 (1) D.Choi, M.Y.Choi, W.M.Choi, H.J.shin, H.K.park, J.S.seo, J.park, S.M.yo, S.J.Chae, Y.H.Lee, S.W.Kim, J.Y.Choi, S.Y.Lee, J.M.Kim.lightweight conductive nanoparticles Based on graphene electronics [ J ]. Advanced Materials,2010,22(19): 2187; [2] J.O.Hwang, D.H.Lee, J.Y.m, T.H.Han, B.H.Kim, M.K.2011 [2] J.O.Hwang ], D.H.Lee, J.Y.R.H.K.K.K.2011 [ 10 ] ZnO.J.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.R.32. The working principle is that ZnO nano-wires are used as flexible nano-piezoelectric materials to be used as flexible generators. The basic principle of the triboelectric flexible generator is that two flexible friction materials with large polarity difference are mutually rubbed to generate static charges, the static charges are combined with the static effect to induce the polar plate to generate opposite charges, the charges are transferred through an external circuit to generate current, so that mechanical energy in the surrounding environment is converted into electric energy, and the triboelectric generator can be driven to work by micro-vibration generated by human body movement, water flow, air flow, sound and the like.
The electromagnetic conversion effect guides the begonia to invent a hand-operated direct-current generator in 1832. The principle is that an induced electromotive force is generated in a coil by changing magnetic flux by rotating a permanent magnet, and the electromotive force is output in the form of a direct current voltage. Such generators are typically constructed from rigid stator, rotor, end caps and bearings. The rigid generator parts are usually made of iron or stainless steel materials, are prepared by processing technologies such as casting, have the characteristics of large size, high hardness and the like, and are not suitable for providing power supplies for human wearable devices. If the parts of the generator can be made of flexible materials, a flexible generator will be obtained. However, no research group or individual reports a flexible generator based on electromagnetic conversion effect at present.
In summary, the problems of the prior art are as follows:
(1) in the prior art, the power generation principle of a flexible generator is mainly based on a triboelectric type, and the flexible generator based on an electromagnetic conversion effect is not available;
(2) the existing generator based on the electromagnetic conversion effect is a hard rigid generator, cannot be worn on the surface of a human body, effectively converts mechanical energy generated by the human body due to movement into electric energy, and is used for providing a power supply for a wearable device.
The significance of solving the technical problems is as follows:
the invention relates to a flexible generator based on an electromagnetic conversion effect, which is an extension patent of the prior art, is designed by the design and application of a flexible electromagnetic material, provides a power supply for other wearable devices, and has a wide application prospect.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a wearable generator based on a flexible electromagnetic material and a preparation method thereof. The invention mainly aims to convert mechanical energy generated by human body due to movement into electric energy for providing power supply for wearable devices. The difficulty in the prior art is the design of flexible electromagnetic materials, but most importantly, no one has invented the device, so that the invention is the first flexible generator based on electromagnetic conversion effect.
The present invention is achieved in such a way that,
a flexible electromagnetic material based wearable generator comprising a power generation unit, an electrode layer mated with the power generation unit;
when the organism moves, the power generation unit based on the flexible electromagnetic material deforms, and an induced instantaneous voltage/current is generated under the electromagnetic coupling effect of the material; the generated voltage/current is output through the electrodes.
Further, the length of the power generation unit based on the flexible electromagnetic material is 0.1mm-100cm, the width of the power generation unit is 0.1mm-10cm, and the thickness of the power generation unit is 0.1mm-2 cm. The flexible electromagnetic material with small size can be tightly attached to the skin of a human body, so that the mechanical energy of the human body can be conveniently captured and converted into electric energy.
Furthermore, the surface of the power generation unit, which is in contact with the outside or in sliding friction, is subjected to physical modification (micro-structure with micron or submicron order is distributed on part or all of the surface) or chemical modification (conductive chemical groups are introduced into the surface modification).
Further, the power generation unit power generation system includes:
1) the flexible electromagnetic material generates electricity in a deformation mode;
2) the flexible electromagnetic material comprises a flexible electric material and a flexible magnetic material, and the relative motion of the flexible electric material and the flexible magnetic material cuts the magnetic induction lines to generate electricity.
The power generation unit periodic structure and the array structure are distributed on the clothes/textile fabric substrate.
Further, the number of the power generation units is at least 2; 2 or more than 2 power generation units are connected in parallel or in series;
the relative positions of the plurality of power generation units are matched with the external moving track.
Further, the electrode layer connected with the power generation unit is one or a mixture of more than two of aluminum, copper, gold and silver;
the thickness of the electrode layer is 0.01-1000 microns.
Furthermore, the connection mode of the power generation unit and the electrode layer is a contact type or a non-contact induction type.
Further, the substrate used for being placed to the power generation unit array is polyester, and the polyester comprises polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polydiallyl terephthalate, polydiallyl isophthalate, polycyclohexyl terephthalate, polybutylene naphthalate, polytrimethylene adipate, polycarbonate, polylactide, polyglycolide, polycaprolactone and polyhydroxybutyrate;
the substrate is polyacrylic acid, including polybutyl acrylate, polymethyl methacrylate, n-butyl methacrylate, poly-a-methyl chloro acrylate;
the substrate is polyamide, including polycaprolactam, polyhexamethylene diamine adipate and decamethylene diamine sebacate;
the substrate is polyurethane, polyvinyl acetate, polyvinyl pyrrolidone, polyethylene glycol, polyvinyl alcohol, polyacrylonitrile, polyvinyl butyral and polyethylene oxide polymer; the polymer is a homopolymer, or a copolymer.
Another object of the present invention is to provide a method for manufacturing a wearable generator based on a flexible electromagnetic material, including:
step one, connecting a power generation unit based on a flexible electromagnetic material with two side electrodes.
And secondly, fixing the power generation unit connected with the electrode on the clothes/textile substrate by a physical sewing or chemical adhesion method, as shown in the attached figure 2.
And step three, repeating the step one and the step two, distributing the power generation units on the clothes/textile fabric substrate in a periodic and array manner, and capturing and converting the mechanical energy of the human body into electric energy to the maximum extent.
The preparation method of the wearable generator based on the flexible electromagnetic material further comprises the following steps:
step one, the electrical part of the flexible electromagnetic material is fixed on the trouser leg clothing/textile substrate by physical sewing or chemical adhesion method, as shown in figure 3.
And secondly, fixing the magnetic part of the flexible electromagnetic material on the other trouser leg clothing/textile substrate by a physical sewing or chemical adhesion method, as shown in the attached figure 3.
And step three, the human body walks to drive the two trouser legs to move relatively, so that the electrical part and the magnetic part of the flexible electromagnetic material are driven to move relatively, and the mechanical energy of the human body is electric energy.
In summary, the advantages and positive effects of the invention are:
when the limbs of the human body move, the first working principle of the flexible generator is used, the flexible electromagnetic material deforms, and the output voltage is 0.5-32V. By using the second working principle of the flexible generator, the flexible electromagnetic material generates the action of cutting electromagnetic field, so that the induced instantaneous voltage/current is generated under the electromagnetic coupling action of the material, and the output voltage is between 1 and 30 volts. This output voltage may charge other wearable devices. Therefore, the flexible generator with the structure is a very efficient generator design which realizes charging by converting mechanical energy into electric energy.
The invention realizes the function of converting mechanical energy generated by human body due to movement into electric energy for providing power supply for the wearable device.
Drawings
Fig. 1 is a schematic diagram of a wearable generator based on flexible electromagnetic materials according to an embodiment of the present invention.
In the figure: 1. a power generation unit; 2. and an electrode layer.
Fig. 2 is a first operation schematic diagram of the wearable generator based on the flexible electromagnetic material according to the embodiment of the present invention.
Fig. 3 is a second operation schematic diagram of the wearable generator based on the flexible electromagnetic material according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The existing electromagnetic conversion effect generator can not effectively convert mechanical energy generated by human body due to movement into electric energy for providing power supply for wearable devices.
The invention is further described below with reference to specific assays.
Referring to fig. 1, the wearable power generator based on flexible electromagnetic material provided by the embodiment of the present invention includes a power generation unit 1, an electrode layer 2 cooperating with the power generation unit;
when a human body moves, the power generation unit based on the flexible electromagnetic material deforms, and an induced instantaneous voltage/current is generated under the electromagnetic coupling effect of the material; the generated voltage/current is output through the electrodes.
As a preferred embodiment of the invention, the flexible electromagnetic material-based power generation unit has a length of 0.1mm-100cm, a width of 0.1mm-10cm and a thickness of 0.1mm-2 cm.
As a preferred embodiment of the invention, the surface of the power generation unit, which is in contact with the outside or in sliding friction, is physically or chemically modified, and micro-structures with micron or submicron order are distributed on part or all of the surface.
As a preferred embodiment of the present invention, a power generation unit power generation system includes:
1) the first working principle of the flexible generator is as follows: the flexible electromagnetic material generates electricity in a deformation mode;
2) the second working principle of the flexible generator is as follows: the flexible electromagnetic material comprises a flexible electric material and a flexible magnetic material, and the relative motion of the flexible electric material and the flexible magnetic material cuts the magnetic induction lines to generate electricity.
As a preferred embodiment of the invention, the power generation units are periodically and arrayed and distributed on the substrate;
the repeating units of the periodic structure are the same in size and shape.
As a preferred embodiment of the present invention, the number of the power generation units is at least 2; 2 or more than 2 power generation units are connected in parallel or in series;
the relative positions of the plurality of power generation units are matched with the external moving track.
In a preferred embodiment of the present invention, the electrode layer connected to the power generation unit is a mixture of one or more of aluminum, copper, gold, and silver;
the thickness of the electrode layer is 0.01-1000 microns.
In a preferred embodiment of the present invention, the connection mode between the power generation unit and the electrode layer is a contact type or a non-contact induction type.
As a preferred embodiment of the present invention, the substrate for discharging to the power generation cell array is polyester, and the polyester includes polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polydiallyl terephthalate, diallyl isophthalate, polycyclohexyl terephthalate, polybutylene naphthalate, polytrimethylene adipate, polycarbonate, polylactide, polyglycolide, polycaprolactone, polyhydroxybutyrate;
the substrate is polyacrylic acid, including polybutyl acrylate, polymethyl methacrylate, n-butyl methacrylate, poly-a-methyl chloro acrylate;
the substrate is polyamide, including polycaprolactam, polyhexamethylene diamine adipate and decamethylene diamine sebacate;
the substrate is polyurethane, polyvinyl acetate, polyvinyl pyrrolidone, polyethylene glycol, polyvinyl alcohol, polyacrylonitrile, polyvinyl butyral and polyethylene oxide polymer; the polymer is a homopolymer, or a copolymer.
Another object of the present invention is to provide a method for manufacturing a wearable generator based on a flexible electromagnetic material, including:
step one, connecting a power generation unit based on a flexible electromagnetic material with two side electrodes.
And secondly, fixing the power generation unit connected with the electrode on the clothes/textile substrate by a physical sewing or chemical adhesion method, as shown in the attached figure 2.
And step three, repeating the step one and the step two, distributing the power generation units on the clothes/textile fabric substrate in a periodic and array manner, and capturing and converting the mechanical energy of the human body into electric energy to the maximum extent.
The preparation method of the wearable generator based on the flexible electromagnetic material further comprises the following steps:
step one, the electrical part of the flexible electromagnetic material is fixed on the trouser leg clothing/textile substrate by physical sewing or chemical adhesion method, as shown in figure 3.
And secondly, fixing the magnetic part of the flexible electromagnetic material on the other trouser leg clothing/textile substrate by a physical sewing or chemical adhesion method, as shown in the attached figure 3.
And step three, the human body walks to drive the two trouser legs to move relatively, so that the electrical part and the magnetic part of the flexible electromagnetic material are driven to move relatively, and the mechanical energy of the human body is electric energy.
The application of the invention is further described below with reference to specific examples.
Example 1
The first working principle of the flexible generator is as follows:
step one, connecting a power generation unit based on a flexible electromagnetic material with copper electrodes on two sides.
And secondly, fixing the power generation unit connected with the electrode on the polybutylene terephthalate clothing/textile substrate by a physical sewing method, as shown in the attached figure 2.
And step three, repeating the step one and the step two, distributing the power generation units on the clothes/textile fabric substrate in a periodic and array manner, capturing and converting the mechanical energy of the human body into electric energy to the maximum extent, and outputting 12V voltage.
Example 2
The first working principle of the flexible generator is as follows:
step one, connecting a power generation unit based on a flexible electromagnetic material with gold electrodes on two sides.
And secondly, fixing the power generation unit connected with the electrode on the poly propylene glycol adipate clothing/textile substrate by a chemical adhesion method, as shown in the attached figure 2.
And step three, repeating the step one and the step two, distributing the power generation units on the clothes/textile fabric substrate in a periodic and array manner, capturing and converting the mechanical energy of the human body into electric energy to the maximum extent, and outputting the voltage of 17V.
Example 3
The second working principle of the flexible generator is as follows:
step one, fixing the copper electrical part of the flexible electromagnetic material on the trouser leg clothing/textile fabric substrate by a physical sewing method, as shown in figure 3.
And secondly, fixing the magnetic part of the samarium cobalt magnet made of the flexible electromagnetic material on the other trouser leg clothing/textile substrate by a physical sewing method, as shown in the attached figure 3.
And step three, the human body walks to drive the two trouser legs to move relatively, so that the electrical part and the magnetic part of the flexible electromagnetic material are driven to move relatively, the mechanical energy of the human body is electric energy, and the output voltage is 10 volts.
Example 4
The second working principle of the flexible generator is as follows:
step one, fixing the gold electric part of the flexible electromagnetic material on the trouser leg clothing/textile substrate by a chemical adhesion method, as shown in figure 3.
And secondly, fixing the ferrite magnetic part of the flexible electromagnetic material on another trouser leg clothing/textile substrate by a chemical adhesion method, as shown in the attached figure 3.
And step three, the human body walks to drive the two trouser legs to move relatively, so that the electrical part and the magnetic part of the flexible electromagnetic material are driven to move relatively, and the mechanical energy of the human body is electric energy.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The wearable generator based on the flexible electromagnetic materials is characterized by comprising a power generation unit and an electrode layer matched with the power generation unit;
when the organism moves, the power generation unit based on the flexible electromagnetic material deforms, and an induced instantaneous voltage/current is generated under the electromagnetic coupling effect of the material; the generated voltage/current is output through the electrodes.
2. The wearable power generator based on flexible electromagnetic materials of claim 1 wherein the flexible electromagnetic materials based power generation unit has a length of 0.1mm-100cm, a width of 0.1mm-10cm, and a thickness of 0.1mm-2 cm;
the surface of the power generation unit, which is in contact with the outside or in sliding friction, is physically or chemically modified.
3. The wearable power generator based on flexible electromagnetic materials of claim 1 wherein the power generation unit generates power in a manner comprising:
1) the flexible electromagnetic material generates electricity in a deformation mode;
2) the flexible electromagnetic material comprises a flexible electric material and a flexible magnetic material, and the relative motion of the flexible electric material and the flexible magnetic material cuts the magnetic induction lines to generate electricity.
4. The wearable power generator based on flexible electromagnetic materials of claim 1 wherein the power generating unit periodic structure, arrayed structure is distributed on the clothing/textile substrate.
5. The wearable electric generator based on flexible electromagnetic materials of claim 1, characterized by at least 2 power generation units; 2 or more than 2 power generation units are connected in parallel or in series;
the relative positions of the plurality of power generation units are matched with the external moving track.
6. The wearable generator based on flexible electromagnetic material of claim 1,
the electrode layer connected with the power generation unit is one or a mixture of more than two of aluminum, copper, gold and silver;
the thickness of the electrode layer is 0.01-1000 microns.
7. The wearable power generator based on flexible electromagnetic materials of claim 1, wherein the power generation unit is connected to the electrode layer in a contact or non-contact induction manner.
8. The wearable generator based on flexible electromagnetic material of claim 4,
the substrate used for discharging to the power generation unit array is polyester, and the polyester comprises polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polydiallyl terephthalate, polydiallyl isophthalate, polycyclohexyl terephthalate, polybutylene naphthalate, polytrimethylene adipate, polycarbonate, polylactide, polyglycolide, polycaprolactone and polyhydroxybutyrate;
the substrate is polyacrylic acid, including polybutyl acrylate, polymethyl methacrylate, n-butyl methacrylate, poly-a-methyl chloro acrylate;
the substrate is polyamide, including polycaprolactam, polyhexamethylene diamine adipate and decamethylene diamine sebacate;
the substrate is polyurethane, polyvinyl acetate, polyvinyl pyrrolidone, polyethylene glycol, polyvinyl alcohol, polyacrylonitrile, polyvinyl butyral and polyethylene oxide polymer; the polymer is a homopolymer, or a copolymer.
9. The method according to claim 1, wherein the method for manufacturing the wearable generator based on the flexible electromagnetic material comprises:
connecting a power generation unit based on a flexible electromagnetic material with two side electrodes;
fixing the power generation unit connected with the electrode on the clothes/textile substrate by a physical sewing or chemical adhesion method;
and step three, repeating the step one and the step two, and distributing the power generation units on the clothes/textile fabric substrate in a periodic and array manner to maximally capture and convert the mechanical energy into electric energy.
10. The method for manufacturing a wearable generator based on flexible electromagnetic materials according to claim 9, wherein the method for manufacturing a wearable generator based on flexible electromagnetic materials further comprises:
fixing the electrical part of the flexible electromagnetic material on the trouser leg clothing/textile fabric substrate by a physical sewing or chemical adhesion method;
fixing the magnetic part of the flexible electromagnetic material on the other trouser leg clothing/textile fabric substrate by a physical sewing or chemical adhesion method;
and step three, the human body walks to drive the two trouser legs to move relatively, so that the electrical part and the magnetic part of the flexible electromagnetic material are driven to move relatively, and the mechanical energy is converted into electric energy.
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