WO2021209069A1 - Vêtement de génération de puissance basée sur l'induction électromagnétique, procédé de préparation et utilisation associés - Google Patents

Vêtement de génération de puissance basée sur l'induction électromagnétique, procédé de préparation et utilisation associés Download PDF

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Publication number
WO2021209069A1
WO2021209069A1 PCT/CN2021/088138 CN2021088138W WO2021209069A1 WO 2021209069 A1 WO2021209069 A1 WO 2021209069A1 CN 2021088138 W CN2021088138 W CN 2021088138W WO 2021209069 A1 WO2021209069 A1 WO 2021209069A1
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Prior art keywords
fabric
yarn
magnetic
flexible
conductive
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PCT/CN2021/088138
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English (en)
Chinese (zh)
Inventor
陶光明
苏斌
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华中科技大学
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Priority claimed from CN202010303366.1A external-priority patent/CN111636130B/zh
Priority claimed from CN202010303505.0A external-priority patent/CN111636131B/zh
Priority claimed from CN202010303338.XA external-priority patent/CN111588105B/zh
Application filed by 华中科技大学 filed Critical 华中科技大学
Publication of WO2021209069A1 publication Critical patent/WO2021209069A1/fr

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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D1/00—Garments
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used

Definitions

  • the invention relates to the technical field of functional textile processing, in particular to an electromagnetic induction power generation garment and a preparation method and application thereof.
  • the electromagnetic induction phenomenon refers to the phenomenon of induced electromotive force due to the change of the magnetic flux passing through a closed loop. It not only reveals the internal connection between electricity and magnetism, but also lays the experimental foundation for the mutual transformation between electricity and magnetism. Mankind's access to huge and cheap electricity has opened up the way, which is of great practical significance. After this phenomenon was first discovered by Faraday, self-generating devices based on the principle of electromagnetic induction began to appear one after another, and gradually became an important energy harvesting device. At present, the mainstream wireless charging equipment is made using the principle of electromagnetic induction, and has been widely used.
  • the electromagnetic self-generation device mainly uses the principle of electromagnetic induction to collect the mechanical energy generated in human activities (such as the swing of the arm, the movement of the knee, etc.), and convert it into electrical energy through magnets and coils, thereby achieving the purpose of self-generation. Therefore, if the electromagnetic self-generating device can be applied to the wireless charging field, electronic devices can be charged anytime and anywhere without consuming electricity in the power grid.
  • the research and product development of wearable technology and wearable devices are relatively hot, but most of the wearable device products need to rely on external power supply or supporting work with energy storage devices to be used normally, and the promotion and use are subject to certain restrictions. Therefore, the focus and difficulty of the research and development of wearable devices is to ensure the light weight and flexibility of the wearable products, and the power source with convenient self-charging function.
  • the invention patent with application number CN201510549363.5 discloses a wearable power generating device, wearable power generating clothes and a method of generating electricity.
  • the wearable power-generating clothes includes at least one magnet unit, at least one electromagnetic induction unit, and an energy storage unit electrically connected to the at least one electromagnetic induction unit; wherein the magnet unit and the electromagnetic induction unit are respectively set to be wearable on different animal bodies.
  • the magnet unit and the electromagnetic induction unit are respectively set to be wearable on different animal bodies.
  • the magnetic flux passing through the electromagnetic induction unit is changed to generate an induced current; the energy storage unit is used to convert the induced current generated by the electromagnetic induction unit into electrical energy store.
  • the disadvantage of this method is that the electromagnetic induction unit coil and the magnet unit need to be glued or pasted on the clothes, which will result in poor flexibility of the clothes and heavy weight, which cannot well meet the requirements of flexible wearable clothes.
  • the conductive coils and magnets are basically hard materials, and the mass is relatively heavy, and it is difficult to make them into a fiber shape or a fabric shape. In view of this, it is necessary to produce lighter and more flexible electromagnetic materials, and to smoothly apply electromagnetic self-generating devices to wearable devices. So as to solve the current defect that wearable devices need to rely on external power supply or work with energy storage devices to be used normally. During human activities, the swinging process of hands and feet can generate mechanical energy. If the principle of electromagnetic induction can be used to integrate such The mechanical energy is collected and converted into electrical energy through magnets and coils to achieve the purpose of self-generation.
  • this type of electromagnetic self-generation device can be applied to wearable devices, it can solve the problem that most of the current wearable devices need to rely on external power supply or work with energy storage devices (such as batteries) to work normally. It can generate power for wearable devices anytime and anywhere without consuming electricity in the power grid, and has broad market application prospects.
  • the patent with publication number CN105186656A provides a wearable power generation device, wearable power generation clothes and a method of power generation.
  • the patent uses magnet units and electromagnetic induction units to be placed on different parts of the animal body, and uses the magnet when the animal body moves. The position of the unit and the electromagnetic induction unit changes, so that the magnetic flux passing through the electromagnetic induction unit changes to generate an induced current to generate electricity.
  • the magnets and conductive coils are basically hard materials with heavier mass and are difficult to fabricate.
  • the magnet unit and the electromagnetic induction unit are sewn, pasted or bound.
  • the joint part between the magnet unit and the electromagnetic induction unit and the main body will have the problem of hard texture and poor flexibility, which seriously affects the wearing comfort of the power-generating clothes, resulting in poor user experience and restrictions To enable the application of the generating clothes.
  • the utility model patent with the application number CN201620546773.4 discloses a garment with a power generating device and a garment that can emit light.
  • the clothes body includes a clothes body and sleeves.
  • the power generating device includes a coil, a first magnet and a second magnet.
  • the first magnet is connected to the sleeve, and the second magnet is connected to the clothes body.
  • the first magnet faces the magnetic poles of the coil and the second magnet faces The magnetic poles of the coil are opposite, and the coil is set between the first magnet and the second magnet.
  • the coil cuts the magnetic lines of induction formed by the first magnet and the second magnet, and the magnetic flux between the first magnet and the second magnet changes Thereby generating current.
  • the clothing has poor flexibility, heavy quality, poor wearing experience, and poor comfort performance, which is limited in practical applications.
  • the conductive coils and magnets are basically hard materials, and the mass is relatively heavy, and it is difficult to make them into a fiber shape or a fabric shape. In view of this, it is necessary to produce lighter and more flexible electromagnetic materials, and to smoothly apply electromagnetic power generation devices to wearable devices. So as to solve the current defect that wearable devices need to rely on external power supply or work with energy storage devices to work normally, and help them to further develop in the direction of light weight, convenience and intelligence.
  • the purpose of the present invention is to provide an electromagnetic induction power generation garment with excellent flexibility and self-generation performance, and a preparation method and application thereof.
  • the present invention provides a clothing for joint bending electromagnetic induction power generation, including a clothing body and an energy storage unit, the joint bending electromagnetic induction power generation clothing further includes a flexible magnetic yarn arranged on the clothing body Fabric and flexible conductive yarn fabric;
  • the flexible magnetic yarn fabric is formed by interweaving high-strength wear-resistant warp yarns and magnetic weft yarns;
  • the magnetic weft yarn has a core-sheath structure and includes a magnetic yarn core and yarns tightly wound around the magnetic yarn core The sheath;
  • the magnetic yarn core is composed of composite fiber strips wrapped with continuous, uniform and linearly arranged magnetic powder, and the yarn sheath is composed of wear-resistant, high-strength, and soft fibers tightly wrapped;
  • the yarn fabric includes a wear-resistant fabric substrate and a conductive filament core-spun yarn sewn on the wear-resistant fabric substrate to form a closed loop;
  • the flexible magnetic yarn fabric and the flexible conductive yarn fabric are separately arranged on opposite sides of the inner sleeve elbow of the garment body and/or on the inner sides of the trouser legs and knees of the garment body;
  • the central axis on the surface of the flexible magnetic yarn fabric and the central axis on the surface of the flexible conductive yarn fabric are on the same straight line or parallel to each other;
  • the flexible conductive yarn fabric moves in a direction that is not parallel to the plane of the flexible magnetic yarn fabric, so that the The flexible conductive yarn fabric cuts the magnetic line of induction in the magnetic field generated by the flexible magnetic yarn fabric to generate electromagnetic induction current to convert mechanical energy into electrical energy, and then store the electrical energy in the storage provided on the garment body. In the energy unit.
  • the mass ratio of the magnetic powder is 10 to 70%, and the magnetic powder is neodymium iron boron magnetic powder, neodymium nickel cobalt magnetic powder, iron oxide magnetic powder, chromium dioxide magnetic powder, One or more of cobalt-iron oxide magnetic powder and metal magnetic powder.
  • the preparation of the flexible magnetic yarn fabric includes a post-magnetization process, and the magnetic strength of the magnetic yarn fabric is 0.1-0.8T.
  • the conductive filament in the conductive filament core-spun yarn is one or more of copper wire, aluminum wire, silver wire, gold wire, and carbon fiber filament; the diameter of the conductive filament is 0.01-1 mm .
  • the energy storage unit is a rechargeable lithium ion battery and the adapter device; connection with the energy storage unit of the garment body is detachably connected.
  • the present invention also discloses a method for preparing the above-mentioned joint bending electromagnetic induction power generation clothing, which is characterized in that: the method for preparing the flexible magnetic yarn fabric includes the following steps:
  • preparing flexible fiber strips S1 slit the non-woven flexible surface material with an areal density of 2-100 g/m2 into flexible fiber strips S1 with a linear density of 10-800 g/km;
  • preparing a composite fiber strip S2' Put a fiber strip S2 with a width of 10-20 mm and a linear density of 10-1000 g/km into the reaction vessel, and the conductive polymer is polymerized in situ. The conductive polymer is grown on the strip, and after drawing, drying and drying, a composite fiber strip with conductive polymer is obtained; the composite fiber strip is immersed in a magnetic powder with a particle size of 10 to 1000 nm.
  • the padding treatment is carried out in a dispersion with a mass concentration of 1-15%, so that the magnetic powder in the dispersion is extruded into the structural surface of the composite fiber strip after in-situ polymerization, and dried to make Growing the conductive polymer on the structural surface of the fiber strip and covering the outer layer of the conductive polymer with the magnetic powder to obtain a composite fiber strip S2';
  • a pair of bobbin packages of flexible fiber strip S1 and a bobbin package of composite fiber strip S2' are respectively placed on the two additional sets of the improved wing spindle roving device.
  • a pair of flexible fiber strip S1 bobbin packages are respectively located on both sides of the bobbin package of composite fiber strip S2', two flexible fiber strips S1 and one composite fiber strip S2'
  • the front jaws overlap each other, and the composite fiber strip S2' is located in the middle of the two flexible fiber strips S1 to form a sandwich-like composite strip.
  • the composite strip is output from the front jaw, and the The composite strip is twisted and pulled by the wing spindle, and the twisting force twists the composite strip three-dimensionally to enhance the wrapping between the flexible fiber strip S1 and the composite fiber strip S2' in the middle Encapsulation, pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' to extend in the length direction, the composite fiber strip S2' is evenly wrapped and wrapped in the composite strip along the radial direction, and then twisted and drawn
  • the stretched composite strip forms a composite yarn sliver with a fineness of 40-2000 tex, and the composite yarn sliver passes through the top hole, side hole, hollow arm, palm pressing rod, Press the palm leaf and finally wind it on the core yarn bobbin to obtain a magnetic yarn with a core-sheath structure;
  • step S4 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S3 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric of a predetermined size, and perform magnetization treatment to obtain a flexible magnetic field strength of 0.1 to 0.8 T Magnetic yarn fabric.
  • the method for preparing the flexible conductive yarn fabric includes the following steps:
  • Conductive filament core-spun yarn is prepared by using conductive filament as the core filament and outsourcing short fibers, and then two conductive filament core-spun yarns are twisted to form a torque-balanced conductive filament sheath Core yarn strands;
  • the magnetic yarn is prepared using an improved wing roving device;
  • the improved wing roving device includes a body of the wing roving frame and two additional sets of unwinding devices;
  • the main body of the wing spindle roving frame includes a front roller and a front rubber roller that are adjacently arranged and engaged to form a front jaw structure, and the flyer top hole, side hole, hollow arm, palm pressing rod, palm pressing leaf, Bobbin package and core yarn bobbin;
  • the unwinding device is arranged behind the front jaw, and is composed of an unwinding shaft, an electrostatic spinning device, and an electrostatic collecting plate corresponding to the electrostatic spinning device, which are symmetrically arranged on the upper and lower sides of the front jaw.
  • An electrostatic spinning area is formed between the electrostatic spinning device and the electrostatic collecting plate, and an unwinding roller is arranged behind the electrostatic spinning area, and the electrostatic spraying area
  • the cloth guiding roller is arranged in front of the silk area.
  • the prepared flexible magnetic yarn fabric and the prepared flexible conductive yarn fabric are separately arranged on the opposite sides of the inner sleeve elbow of the garment body and/or the inner side of the trouser leg and knee of the garment body.
  • the energy storage unit is arranged on the garment body; the energy storage unit is electrically connected to the flexible conductive yarn fabric to prepare a joint bending electromagnetic induction power generation garment;
  • the flexible conductive yarn fabric moves in a direction that is not parallel to the plane of the flexible magnetic yarn fabric to realize the bending deformation oblique direction Cut magnetic lines of induction to generate electrical energy.
  • the present invention also provides the above-mentioned joint bending electromagnetic induction power generation clothing in self-powered wearable clothing, military clothing, aviation clothing, nautical clothing, field surgery clothing, sports and adventure clothing, firefighting clothing, and medical protective clothing.
  • the application In the application.
  • the present invention has the following beneficial effects:
  • the flexible magnetic yarn fabric prepared by the spinning process of the wing roving device improved by in-situ polymerization of conductive polymer and padding magnetic powder dispersion liquid The magnetic powder has a stable structure and uniform distribution, and has the advantages of light weight and flexibility; by adjusting the mass ratio of the magnetic powder, different sizes of induced electric energy can be obtained; 2)
  • the flexible conductive yarn fabric adopts flexible conductive filaments for winding in series
  • the conductive coil set is prepared and sewn on the garment body to make it have certain flexibility and good mechanical properties, flexible and comfortable, light and wear-resistant, and not easy to be damaged by friction during use.
  • the flexible magnetic yarn fabric and the flexible conductive yarn fabric are arranged in the parts where the human body moves frequently (elbows and knees), and the relative position of the flexible magnetic yarn fabric and the flexible conductive yarn fabric when the elbows and knees are bent
  • the change occurs so that the flexible conductive yarn fabric moves in a direction that is not parallel to the plane of the flexible magnetic yarn fabric, which realizes bending deformation and obliquely cutting the magnetic line of induction, generating electromagnetic induction current, so as to convert the mechanical energy of the human body into electrical energy.
  • the bending actions of the elbows and knees are frequent actions in daily life (especially in outdoor sports).
  • the self-generating clothing provided by the present invention realizes the utilization of mechanical energy and effectively solves the need for external wearable devices.
  • the comfort of the clothing is retained to the greatest extent, which helps the wearable device to further develop in the direction of flexibility, light weight, convenience and intelligence.
  • the method for preparing a joint bending electromagnetic induction power generation garment provided by the present invention is simple to operate, and the composition, structure and power generation performance of the material can be adjusted according to actual applications.
  • the articulated bending electromagnetic induction power generation clothing provided by the present invention can convert the mechanical energy of the human body into electrical energy. It has huge applications in the preparation of military, aviation, navigation, field surgery, sports exploration, fire protection, medical protection and other clothing fields. prospect.
  • Another object of the present invention is to provide a swing electromagnetic induction type power generating flexible fabric and its production method and application.
  • the magnetic powder is evenly wrapped in the yarn, and a stable magnetic yarn fabric is prepared by a spinning method.
  • the present invention provides a swinging electromagnetic induction type power generating flexible fabric.
  • the swinging electromagnetic induction type power generating flexible fabric includes a magnetic yarn fabric and a conductive coil fabric.
  • the magnetic yarn fabric and the conductive coil fabric are respectively located at The surface of two relatively swinging parts;
  • the magnetic yarn fabric is formed by interweaving high-strength wear-resistant warp yarns and magnetic weft yarns, and the magnetic weft yarns have a core-sheath structure formed by tightly winding the magnetic yarn core with a yarn sheath, and the magnetic yarn core is formed by Composite fiber strips are formed by wrapping magnetic powder, the yarn sheath is formed by tightly wrapping high-strength wear-resistant fibers;
  • the conductive coil fabric is embroidered on the wear-resistant fabric base by conductive yarn core-spun yarn strands, and the embroidery The pattern is one or more closed loops.
  • the magnetic powder includes, but is not limited to, one or a mixture of neodymium iron boron magnetic powder, neodymium nickel cobalt magnetic powder, iron oxide magnetic powder, chromium dioxide magnetic powder, cobalt-iron oxide magnetic powder, and metal magnetic powder.
  • the mass percentage of the magnetic powder in the magnetic yarn fabric is 10% to 70%, and the particle size of the magnetic powder is 0.01 to 500 ⁇ m.
  • the present invention also provides a method for producing the above-mentioned swinging electromagnetic induction power generating flexible fabric, including a method for producing a magnetic yarn fabric and a method for producing a conductive coil fabric;
  • the production method of the magnetic yarn fabric includes the following steps:
  • fiber strip S1 Preparation of fiber strip S1: slit the non-woven flexible surface material with an areal density of 2-100g/m 2 into fiber strips S1 with a linear density of 10-500g/km, and obtain fiber strips after winding. With S1 roll;
  • an unwinding device is added behind the front roller nip of the roving frame, so that a pair of the fiber strip S1 packages are respectively located on both sides of the magnetic powder prepolymer S2' package; After the fiber strip S1 unwound from the fiber strip S1 package is electrostatically spinned, a layer of nanofiber membrane is compounded on the inner side of the fiber strip S1 to prepare a composite fiber strip online;
  • the magnetic powder prepolymer S2' unwound from the package of the magnetic powder prepolymer S2' and the composite fiber strips on both sides thereof are fed into the jaws of the front roller, so that the magnetic powder
  • the bulk prepolymer S2' is clamped in the middle by the composite fiber strips on both sides to form a sandwich composite strip; the sandwich composite strip is output from the front roller jaws at a speed of 10-25m/min , Under the twisting action of the wing spindle of 500-1400r/min, the composite fiber strips net-cover the
  • the magnetic yarn core obtained in step A3 is used as the core yarn, and the short fiber web formed by the drafting and carding of short fiber strands is continuously wrapped in the magnetic yarn core by the friction spinning method.
  • the high-strength spun yarn is prepared into a high-strength wear-resistant warp through the processes of warping, warping, and threading of high-strength spun yarn, and then the high-strength wear-resistant warp and the magnetic weft obtained in step A4 are interwoven with warp and weft Weaving to obtain magnetic yarn fabric;
  • Magnetic yarn fabric post-treatment liquid resin or viscose is used to cure and seal the radial edges of the magnetic yarn fabric obtained in step A5, and then magnetize the magnetic yarn fabric after curing and edge sealing After treatment, a magnetic yarn fabric with a magnetic strength of 0.1 to 0.8T is obtained.
  • the production method of the conductive coil fabric includes the following steps:
  • conductive filament core-spun yarn strands the conductive filament is used as the core filament and short fibers are wrapped to prepare the conductive filament core-spun yarn, and then two conductive filament core-spun yarns are twisted to form a torque-balanced conductive filament sheath Core yarn strands;
  • Embroidering of conductive coil fabric using a wear-resistant fabric as a substrate, embroidering the conductive core-spun yarn strands obtained in step B1 on the surface of the wear-resistant fabric according to a predetermined pattern to obtain a conductive coil fabric;
  • the pattern is one or more closed loops.
  • the unwinding device includes a core strip guide roller arranged behind the jaws of the front roller, a core strip unwinding shaft is provided behind the core strip guide roller, and the core strip unwinds
  • the winding shaft is used for the unwinding of the magnetic powder prepolymer S2' package;
  • the upper side of the core guide roller is provided with a strip unwinding shaft, an electrostatic spinning device, an electrostatic collecting plate and a cloth guide roller, so
  • the electrostatic spinning device and the electrostatic collecting plate are arranged correspondingly to form an electrostatic spinning area, the cloth guiding roller is located in front of the electrostatic spinning area, and the strip unwinding shaft is located behind the electrostatic spinning area , Used for the unwinding of the fiber strip S1 package;
  • the lower side of the core guide roller is provided with the same strip unwinding shaft, electrostatic spinning device, and electrostatic collecting in a symmetrical manner with the upper side Plate and cloth guiding roller.
  • the material of the nanofiber membrane includes, but is not limited to, one or a mixture of polyester, polyolefin, polyamide, and graft copolymer.
  • the conductive filament includes but is not limited to one or more of copper wire, aluminum wire, silver wire, and gold wire; the diameter of the conductive filament is 0.01 to 1 mm.
  • the invention also provides the application of the swinging electromagnetic induction power generating flexible fabric in power generating jackets and power generating pants.
  • any one of the magnetic yarn fabric and the conductive coil fabric is set on the side of the top of the jacket, and the other fabric is set on the side of the top of the jacket.
  • the magnetic powder is evenly wrapped in the yarn, and a stable magnetic yarn fabric is prepared by a weaving method, and then combined with a conductive coil fabric containing conductive filaments to form a flexible fabric capable of self-generation
  • the present invention by applying the flexible fabric to clothing, can use electromagnetic induction to convert the mechanical energy generated by the human body swing/walking process into electrical energy, achieve the effect of generating electricity, and keep the clothing soft and bendable to meet User needs.
  • the magnetic powder prepolymer containing magnetic powder is clamped in the middle by the composite fiber strip, so that the composite fiber strip is used to preload the magnetic powder.
  • the polymer is wrapped in a net.
  • This method not only allows the magnetic yarn core to retain the soft, flexible, and woven characteristics of the fiber material, but also uses the magnetic powder contained in the magnetic yarn core to make it compatible with any material
  • the production method provided by the present invention can also make the magnetic powder in the magnetic yarn core continuously and uniformly linearly arranged, thereby The performance of the finally produced swing electromagnetic induction power generating flexible fabric is more stable and controllable.
  • the oscillating electromagnetic induction power generation flexible fabric provided by the present invention includes a magnetic yarn fabric and a conductive coil fabric, both of which retain their respective magnetic properties or conductivity, but also have the softness of the fabric, and can be applied by weaving or sewing On the power-generating shirt or power-generating pants; when the human body swings or walks, the magnetic yarn fabric and the conductive coil fabric respectively arranged on the surfaces of the two relatively swinging parts on the power-generating shirt or power-generating pants will be displaced, thereby causing the conductive coil fabric Some of the conductive filaments in the magnetic yarn fabric cut the magnetic line of induction movement in the magnetic field formed by the magnetic yarn fabric to generate induced current, which realizes the use of electromagnetic induction to convert the mechanical energy of the human body's arm swing/walking process into electrical energy, which not only improves the use of energy It also solves the problem that most of the current wearable devices need to rely on external power supply or work with energy storage devices (such as batteries) to work normally, and help them move toward lightweight, convenient and intelligent.
  • the production method of the swing electromagnetic induction type power generation flexible fabric provided by the present invention uses simple equipment, easy operation, low energy consumption in the production process, low cost, and is suitable for industrialized large-scale production; and the swing electromagnetic induction type prepared by the method
  • the performance of the flexible fabric for power generation is stable and easy to control. It can ensure the user's wearing comfort while achieving power generation, meets the needs of actual use, and has great application value.
  • Another object of the present invention is to provide a fabric for generating electricity by airflow with excellent flexibility, and a preparation method and application thereof.
  • the present invention provides a fabric for generating electricity by airflow.
  • the fabric for generating electricity by airflow has a double-layer structure, including a surface layer fabric and an inner layer fabric that are superimposed on each other but are not interwoven, and are formed between the two. There is an air flow space between, and the surface layer fabric is provided with at least one opening; one of the surface layer fabric and the inner layer fabric is a flexible magnetic yarn fabric, and the other layer is a flexible conductive yarn fabric;
  • the flexible conductive yarn fabric is prepared by winding conductive filament core-spun yarn into flexible conductive coils, and sewing a number of the flexible conductive coils in series on the fabric base;
  • the flexible magnetic yarn fabric is made of wear-resistant warp yarns and flexible
  • the magnetic weft yarn is interwoven;
  • the flexible magnetic weft yarn has a core-sheath structure and includes a magnetic yarn core and a yarn sheath layer tightly wound around the magnetic yarn core;
  • the magnetic yarn core is continuously and evenly wrapped by a composite fiber strip , Composed of linearly arranged magnetic powder, the yarn sheath layer is composed of abrasion-resistant, high-strength and soft fibers tightly wrapped;
  • the external airflow can enter the airflow space in the middle of the double-layer structure through the opening to circulate, so as to drive the surface layer fabric to deform and cut magnetic lines of induction, generate electromagnetic induction current, to convert mechanical energy into electrical energy, and then store the electrical energy in the set
  • the power generation function is realized in the energy storage unit on the fabric for generating electricity by airflow.
  • edges of the surface layer fabric and the inner layer fabric are fixedly connected to each other to form the air flow space.
  • the fabric for generating electricity by airflow includes two openings, and the two openings are symmetrically arranged for airflow to circulate in the airflow space.
  • the mass ratio of the magnetic powder is 10 to 70%, and the magnetic powder is neodymium iron boron magnetic powder, neodymium nickel cobalt magnetic powder, iron oxide magnetic powder, chromium dioxide magnetic powder, One or more of cobalt-iron oxide magnetic powder and metal magnetic powder.
  • the magnetic powder is one or more of neodymium iron boron magnetic powder, neodymium nickel cobalt magnetic powder, iron oxide magnetic powder, chromium dioxide magnetic powder, cobalt-iron oxide magnetic powder, and metal magnetic powder.
  • the preparation of the flexible magnetic yarn fabric includes a post-magnetization process, and the magnetic strength of the flexible magnetic yarn fabric is 0.1-0.8T.
  • the conductive filament in the conductive filament core-spun yarn is one or more of copper wire, aluminum wire, silver wire, gold wire, and carbon fiber filament; the diameter of the conductive filament is 0.01-1 mm .
  • the present invention also provides a method for preparing the above-mentioned air-flow generating fabric.
  • the method for preparing the fabric for generating electricity by airflow includes the following steps:
  • S1 preparing a flexible conductive yarn fabric: winding a conductive wire core-spun yarn into a flexible conductive coil for a predetermined number of turns to form a closed loop, and sewing a number of the flexible conductive coils in series on the fabric substrate to obtain a flexible conductive fabric of a predetermined size Gauze fabric, forming a coil conductor;
  • a composite fiber strip S2' Put a fiber strip S2 with a width of 10-20 mm and a linear density of 10-1000 g/km into the reaction vessel, and the conductive polymer is polymerized in situ to deposit the fiber A conductive polymer is grown on the strip, and after drawing, drying and drying, a composite fiber strip with a conductive polymer is obtained; the composite fiber strip is immersed in a magnetic powder with a particle size of 10 to 1000 nm.
  • the padding treatment is carried out in a dispersion with a mass concentration of 1-15%, so that the magnetic powder in the dispersion is extruded into the structural surface of the composite fiber strip after in-situ polymerization, and dried to make Growing the conductive polymer on the structural surface of the fiber strip and covering the outer layer of the conductive polymer with the magnetic powder to obtain a composite fiber strip S2';
  • a pair of bobbin packages of flexible fiber strips S1 and a bobbin package of composite fiber strips S2' are respectively placed on the two additional sets of the improved wing spindle roving device.
  • a pair of flexible fiber strip S1 bobbin packages are respectively located on both sides of the bobbin package of composite fiber strip S2', two flexible fiber strips S1 and one composite fiber strip S2'
  • the front jaws overlap each other, and the composite fiber strip S2' is located in the middle of the two flexible fiber strips S1 to form a sandwich-like composite strip.
  • the composite strip is output from the front jaw, and the The composite strip is twisted and pulled by the wing spindle, and the twisting force twists the composite strip three-dimensionally to enhance the wrapping between the flexible fiber strip S1 and the composite fiber strip S2' in the middle Encapsulation, pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' to extend in the length direction, the composite fiber strip S2' is evenly wrapped and wrapped in the composite strip along the radial direction, and then twisted and drawn
  • the stretched composite strip forms a composite yarn sliver with a fineness of 40-2000 tex, and the composite yarn sliver passes through the top hole, side hole, hollow arm, palm pressing rod, Press the palm leaf and finally wind it on the core yarn bobbin to obtain a magnetic yarn with a core-sheath structure;
  • step S24 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S23 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric of a predetermined size, and perform magnetizing treatment to obtain a flexible magnetic field strength of 0.1 to 0.8 T Magnetic yarn fabric;
  • one of the flexible conductive yarn fabric prepared in step S1 and the flexible magnetic yarn fabric prepared in step S2 is a surface layer fabric, the other is an inner layer fabric, and At least one opening is provided on the surface layer fabric; the edges of the surface layer fabric and the inner layer fabric are fixedly connected to each other; the energy storage unit is electrically connected to the flexible conductive yarn fabric to prepare a fabric for generating electricity by airflow;
  • the external airflow can enter the airflow space in the middle of the double-layer structure through the opening to circulate, so as to drive the surface layer fabric to deform and cut the magnetic lines of induction, generate electromagnetic induction current to convert mechanical energy into electrical energy, and then store the electrical energy in the storage.
  • the power generation function is realized.
  • the magnetic yarn is prepared using an improved wing roving device;
  • the improved wing roving device includes a wing roving frame body and two additional sets of unwinding devices;
  • the body of the wing roving frame includes a front roller and a front rubber roller that are adjacently arranged and engaged to form a front jaw structure, as well as a flyer top hole, a side hole, a hollow arm, a palm pressing rod, a palm pressing leaf, Bobbin package and core yarn bobbin;
  • the unwinding device is additionally installed behind the front jaw, and is composed of an unwinding shaft, an electrostatic spinning device, and an electrostatic collecting plate corresponding to the electrostatic spinning device, which are symmetrically arranged on the upper and lower sides of the front jaw.
  • An electrostatic spinning area is formed between the electrostatic spinning device and the electrostatic collecting plate, and an unwinding roller is arranged behind the electrostatic spinning area, and the electrostatic spraying area
  • the cloth guiding roller is arranged in front of the silk area.
  • the present invention also provides the application of the above-mentioned airflow-generating fabric in self-powered wearable clothing, military clothing, field surgery clothing, sports adventure clothing, fire fighting clothing, and medical protective clothing.
  • the present invention has the following beneficial effects:
  • the fabric for generating electricity by airflow disperses the magnetic powder evenly in the yarn, prepares a flexible magnetic yarn fabric by using textile technology, and winds the flexible conductive wire core-spun yarn into a flexible conductive loop to be sewn on the fabric base
  • the flexible conductive yarn fabric is prepared; using the principle of electromagnetic induction, the above two are set as the double-layer structure of the inner fabric and the surface fabric of the power generation fabric, and the openings for air flow into the double-layer structure are provided on the surface fabric.
  • the surface layer fabric is driven by airflow fluctuations to deform and fluctuate, and the magnetic induction line is cut, thereby generating induced current.
  • the present invention uses airflow fluctuations and the principle of electromagnetic induction to jointly realize the function of fabric power generation, converts mechanical energy into electrical energy, and effectively solves the current problem.
  • the preparation method of the fabric for generating electricity by airflow provided by the present invention is simple to operate, and the composition, structure and power generation performance of the material can be adjusted according to actual applications.
  • the magnetic yarn fabric prepared by the invention has excellent flexibility and magnetic field strength, and the structural stability is controllable.
  • the conductive yarn fabric prepared by the invention has excellent flexibility and mechanical properties, and the two cooperate with each other to realize the power generation function of the fabric.
  • the fabric for generating electricity by air flow provided by the present invention has great application prospects in the preparation of self-powered wearable equipment, military industry, field surgery, sports exploration, fire protection, medical protection and other clothing fields.
  • Fig. 1 is a schematic structural diagram of an improved wing roving device adopted in the present invention.
  • FIG. 2 is a schematic diagram of the structure of the elbow of a garment upper garment with joint bending electromagnetic induction power generation according to Embodiment 1 of the present invention.
  • Fig. 3 is a schematic structural diagram of a knee part of a garment trouser leg with joint bending electromagnetic induction power generation according to Embodiment 8 of the present invention.
  • Figure 4 is a physical optical diagram of the magnetic yarn spun and the woven flexible magnetic fabric in Example 1.
  • Figure 5 is a graph of the induced electromotive force generated by the tester walking in Example 1 of the present invention.
  • Figure 6 is a schematic diagram of the production steps of the magnetic yarn fabric provided by the present invention.
  • Figure 7 is a graph of the induced electromotive force generated by the tester walking in Example 9 of the present invention.
  • FIG. 8 is a schematic structural diagram of the swing electromagnetic induction type power generating flexible fabric provided in Embodiment 10 of the present invention when it is applied to a power generating top;
  • FIG. 9 is a schematic structural diagram of the swing electromagnetic induction type power generating flexible fabric provided in Embodiment 11 of the present invention when applied to power generating pants;
  • FIG 10 is a detailed component diagram of the adaptation device provided in embodiments 10-11 of the present invention, including a bridge rectifier circuit and an electrical energy storage device (battery or capacitor);
  • FIG. 11 is a schematic structural diagram of a wearable garment that generates electricity by airflow according to Embodiment 12 of the present invention.
  • Fig. 12 is a schematic side view of a part of the structure of the waved surface layer fabric in the wearable garment that generates electricity by airflow provided by the embodiment 12 of the present invention.
  • Fig. 13 is a schematic diagram of the structure of the vest according to the embodiment 13 of the present invention.
  • Figure 14 is a graph of the induced electromotive force generated by the tester running in Example 12 of the present invention.
  • Example 15 is a graph of the induced electromotive force generated by the tester running in Example 13 of the present invention.
  • Improved wing spindle roving device 1. Electrostatic spinning device; 2. Electrostatic collecting plate; 3. Cloth guide roller; 4. Core guide roller; 5. Front rubber roller; 6. Front roller; 7. Flyer Top hole; 8. Side hole; 9. Bobbin package; 10. Palm pressing leaf; 11. Hollow arm; 12. Palm pressing rod; 13. Core yarn bobbin; 14. Conductive coil fabric; 15. Adaptation device ; 16. Magnetic yarn fabric;
  • S1 flexible fiber strip
  • S2' composite fiber strip
  • A, A1, A2 flexible magnetic yarn fabric
  • B, B1, B2 flexible conductive yarn fabric
  • the improved wing roving device 100 used in the present invention includes a wing roving frame body and two additional sets of unwinding devices;
  • the body of the wing roving frame includes a front roller 6 and a front rubber roller 5 that are adjacently arranged and engaged to form a front jaw structure, and also includes a flyer top hole 7, a side hole 8, a hollow arm 11, and a pressing palm arranged in sequence.
  • the unwinding device is additionally installed behind the front jaw, and is composed of an unwinding shaft, an electrostatic spinning device 1, an electrostatic collecting plate 2 corresponding to the electrostatic spinning device 1, and symmetrically arranged on the front jaw
  • the upper and lower sides of the cloth guide roller 3 and the core guide roller 4 constitute; the electrostatic spinning device 1 and the electrostatic collecting plate 2 form an electrostatic spinning area, the electrostatic spinning area is arranged behind There is an unwinding roller, and the cloth guiding roller 3 is arranged in front of the electrostatic spinning zone.
  • the present invention provides a method for preparing a joint bending electromagnetic induction power generation garment, which includes the following steps:
  • preparing flexible fiber strips S1 slit the non-woven flexible surface material with an areal density of 2-100 g/m2 into flexible fiber strips S1 with a linear density of 10-800 g/km;
  • preparing a composite fiber strip S2' Put a fiber strip S2 with a width of 10-20 mm and a linear density of 10-1000 g/km into the reaction vessel, and the conductive polymer is polymerized in situ. The conductive polymer is grown on the strip, and after drawing, drying and drying, a composite fiber strip with conductive polymer is obtained; the composite fiber strip is immersed in a magnetic powder with a particle size of 10 to 1000 nm.
  • the padding treatment is carried out in a dispersion with a mass concentration of 1-15%, so that the magnetic powder in the dispersion is extruded into the structural surface of the composite fiber strip after in-situ polymerization, and dried to make Growing the conductive polymer on the structural surface of the fiber strip and covering the outer layer of the conductive polymer with the magnetic powder to obtain a composite fiber strip S2';
  • a pair of bobbin packages of flexible fiber tape S1 and a bobbin package of composite fiber tape S2' are respectively placed in the two additional sets of the improved wing spindle roving device 100
  • a pair of flexible fiber strip S1 bobbin packages are respectively located on both sides of the bobbin package of composite fiber strip S2', two flexible fiber strips S1 and one composite fiber strip S2 '
  • the front jaws overlap each other, and the composite fiber strip S2' is located in the middle of the two flexible fiber strips S1 to form a sandwich-like composite strip, the composite strip is output from the front jaw, and after output
  • the composite strip is twisted and pulled by the wing spindle, and the twisting force twists the composite strip three-dimensionally to strengthen the package between the flexible fiber strip S1 and the composite fiber strip S2' in the middle.
  • the pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' to extend in the length direction, and the composite fiber strip S2' is evenly wrapped and wrapped in the radial direction in the composite strip, and then twisted
  • the composite strip forms a composite yarn sliver with a fineness of 40-2000 tex.
  • the composite yarn sliver passes through the top hole 8, the side hole 9, and the hollow arm 10 of the rotating wing of the roving frame.
  • the palm pressing rod 11 and the palm pressing leaf 12 are finally wound on the core yarn bobbin 13 to obtain a magnetic yarn with a core-sheath structure;
  • step S4 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S3 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric of a predetermined size, and perform magnetization treatment to obtain a flexible magnetic field strength of 0.1 to 0.8 T Magnetic yarn fabric.
  • the specific method for magnetizing the magnetic yarn fabric is as follows: first place the sample in the inner cavity of a cylindrical magnetizing table with a diameter of 50 cm and a depth of 3 cm. There is a magnetizing coil outside the inner cavity of the cylindrical magnetizing table. , At the moment of 9 kV and 10 milliseconds, it can provide the inner cavity with an instantaneous vertical magnetic field with a central strength of 3 Tesla.
  • the sample is laid flat, and there will be a magnetic field with the N pole in the vertical direction inside the sample.
  • the sample containing neodymium iron boron magnetic powder is instantly magnetized to the magnetic saturation intensity in the inner cavity of the magnetizing station, and the residual magnetic field strength after magnetization is positively correlated with the content of the neodymium iron boron magnetic powder contained in the sample.
  • the preparation method of flexible conductive yarn fabric includes the following steps:
  • Conductive filament core-spun yarn is prepared by using conductive filament as the core filament and outsourcing short fibers, and then two conductive filament core-spun yarns are twisted to form a torque-balanced conductive filament sheath Core yarn strands;
  • the flexible magnetic yarn fabric prepared in step S4 and the flexible conductive yarn fabric prepared in step S12 are separately arranged on opposite sides of the inner sleeve elbow of the garment body and/or the garment body The two opposite sides of the inner side of the knees of the trouser legs; the energy storage unit is arranged on the garment body; the energy storage unit is electrically connected to the flexible conductive yarn fabric to prepare a joint bending electromagnetic induction power generation garment;
  • the flexible conductive yarn fabric moves in a direction that is not parallel to the plane of the flexible magnetic yarn fabric to realize the bending deformation oblique direction Cut magnetic lines of induction to generate electrical energy.
  • the present invention also provides a method for preparing a fabric for generating electricity by airflow, which includes the following steps:
  • S1 preparing a flexible conductive yarn fabric: winding a conductive wire core-spun yarn into a flexible conductive coil for a predetermined number of turns to form a closed loop, and sewing a number of the flexible conductive coils in series on the fabric substrate to obtain a flexible conductive fabric of a predetermined size Gauze fabric, forming a coil conductor;
  • a composite fiber strip S2' Put a fiber strip S2 with a width of 10-20 mm and a linear density of 10-1000 g/km into the reaction vessel, and the conductive polymer is polymerized in situ to deposit the fiber A conductive polymer is grown on the strip, and after drawing, drying and drying, a composite fiber strip with a conductive polymer is obtained; the composite fiber strip is immersed in a magnetic powder with a particle size of 10 to 1000 nm.
  • the padding treatment is carried out in a dispersion with a mass concentration of 1-15%, so that the magnetic powder in the dispersion is extruded into the structural surface of the composite fiber strip after in-situ polymerization, and dried to make Growing the conductive polymer on the structural surface of the fiber strip and covering the outer layer of the conductive polymer with the magnetic powder to obtain a composite fiber strip S2';
  • a pair of bobbin packages of flexible fiber tape S1 and a bobbin package of composite fiber tape S2' are respectively placed on the two additional sets of the improved wing spindle roving device 100
  • a pair of flexible fiber strip S1 bobbin packages are respectively located on both sides of the bobbin package of composite fiber strip S2', two flexible fiber strips S1 and one composite fiber strip S2 '
  • the front jaws overlap each other, and the composite fiber strip S2' is located in the middle of the two flexible fiber strips S1 to form a sandwich-like composite strip, the composite strip is output from the front jaw, and after output
  • the composite strip is twisted and pulled by the wing spindle, and the twisting force twists the composite strip three-dimensionally to strengthen the package between the flexible fiber strip S1 and the composite fiber strip S2' in the middle.
  • the pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' to extend in the length direction, and the composite fiber strip S2' is evenly wrapped and wrapped in the radial direction in the composite strip, and then twisted
  • the composite strip forms a composite yarn sliver with a fineness of 40-2000 tex.
  • the composite yarn sliver passes through the top hole 8, the side hole 9, and the hollow arm 10 of the rotating wing of the roving frame.
  • the palm pressing rod 11 and the palm pressing leaf 12 are finally wound on the core yarn bobbin 13 to obtain a magnetic yarn with a core-sheath structure;
  • step S24 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S23 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric of a predetermined size, and perform magnetizing treatment to obtain a flexible magnetic field strength of 0.1 to 0.8 T Magnetic yarn fabric.
  • the specific method for magnetizing the magnetic yarn fabric is as follows: first place the sample in the inner cavity of a cylindrical magnetizing table with a diameter of 50 cm and a depth of 3 cm. There is a magnetizing coil outside the inner cavity of the cylindrical magnetizing table. , At the moment of 9 kV and 10 milliseconds, it can provide the inner cavity with an instantaneous vertical magnetic field with a central strength of 3 Tesla.
  • the sample is laid flat, and there will be a magnetic field with the N pole in the vertical direction inside the sample.
  • the sample containing neodymium iron boron magnetic powder is instantly magnetized to the magnetic saturation intensity in the inner cavity of the magnetizing station, and the residual magnetic field strength after magnetization is positively correlated with the content of the neodymium iron boron magnetic powder contained in the sample.
  • one of the flexible conductive yarn fabric prepared in step S1 and the flexible magnetic yarn fabric prepared in step S2 is a surface layer fabric, the other is an inner layer fabric, and At least one opening is provided on the surface layer fabric; the edges of the surface layer fabric and the inner layer fabric are fixedly connected to each other; the energy storage unit is electrically connected to the flexible conductive yarn fabric to prepare a fabric for generating electricity by airflow;
  • the external airflow can enter the airflow space in the middle of the double-layer structure through the opening to circulate, so as to drive the surface layer fabric to deform and cut the magnetic lines of induction, generate electromagnetic induction current to convert mechanical energy into electrical energy, and then store the electrical energy in the storage.
  • the power generation function is realized.
  • a clothing with joint bending electromagnetic induction power generation and a preparation method thereof including the following steps:
  • preparing flexible fiber strips S1 slit the non-woven flexible surface material with an areal density of 50 g/m2 into flexible fiber strips S1 with a linear density of 400 g/km;
  • preparing a composite fiber strip S2' Put a fiber strip S2 with a width of 10 mm and a linear density of 500 g/km into the reaction vessel, and polymerize conductive polymer in situ to grow on the fiber strip After the conductive polymer is drawn, dried and dried, a composite fiber strip with a conductive polymer is obtained; the composite fiber strip is immersed in) Ru-Fe-B with a particle size of 100 nm and a magnetic powder mass concentration of 10% The magnetic dispersion liquid is subjected to padding treatment, so that the magnetic powder in the dispersion liquid is squeezed into the structural surface of the composite fiber strip after in-situ polymerization, and dried to make the structure of the fiber strip Growing the conductive polymer on the surface and covering the outer layer of the conductive polymer with the magnetic powder to obtain a composite fiber strip S2';
  • a pair of bobbin packages of flexible fiber tape S1 and a bobbin package of composite fiber tape S2' are respectively placed in the two additional sets of the improved wing spindle roving device 100
  • a pair of flexible fiber strip S1 bobbin packages are respectively located on both sides of the bobbin package of composite fiber strip S2', two flexible fiber strips S1 and one composite fiber strip S2 'At the front jaws overlap each other, and the composite fiber strip S2' is located in the middle of the two flexible fiber strips S1, forming a sandwich-like composite strip, the composite strip is output from the front jaw, and the output The linear speed is 20 m/min.
  • the output composite strip is twisted and pulled by the wing spindle.
  • the twisting force twists the composite strip three-dimensionally to strengthen the flexible fiber strip S1 and the middle one.
  • the entanglement between the composite fiber strips S2', the pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' stretches in the length direction, and the composite fiber strip S2' runs along the radial direction in the composite strip. It is evenly wrapped and wrapped, and the composite strip after twisting and drafting forms a composite yarn sliver with a fineness of 800 tex.
  • the composite yarn is passed through the top hole of the rotor of the wing roving frame.
  • the side hole 9, the hollow arm 10, the palm pressing rod 11, and the palm pressing leaf 12 are finally wound on the core yarn bobbin 13 to obtain a magnetic yarn with a core-sheath structure;
  • step S4 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S3 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric with a size of 5 ⁇ 5 cm, and perform magnetizing treatment to obtain a flexible magnetic field strength of 0.4T Magnetic yarn fabric.
  • Conductive filament core-spun yarn is prepared by using conductive filament as the core filament and outsourcing short fibers, and then two conductive filament core-spun yarns are twisted to form a torque-balanced conductive filament sheath Core yarn strands;
  • Embroidering of conductive coil fabric Wrap 100 turns of conductive core-spun yarn into conductive coils to form a closed loop, and sew 10 of the conductive coils in series on the wear-resistant substrate to obtain a 5 ⁇ 5cm size
  • the conductive yarn fabric forms a coil conductor; the conductive filaments in the conductive filament core-spun yarn are copper wires, and the diameter of the conductive filaments is 0.05 mm.
  • the flexible magnetic yarn fabric prepared in step S4 and the flexible conductive yarn fabric prepared in step S12 are separately arranged on opposite sides of the inner sleeve elbow of the garment body; and the energy storage unit is arranged at all sides.
  • the energy storage unit is electrically connected to the flexible conductive yarn fabric to prepare a knuckle-bending clothing that generates electricity by electromagnetic induction;
  • the flexible conductive yarn fabric moves in a direction that is not parallel to the plane of the flexible magnetic yarn fabric to achieve bending deformation and obliquely cut magnetic lines of induction, resulting in Electrical energy.
  • a and A1 are flexible magnetic yarn fabrics arranged in an upward position on the inner side of the elbow
  • B and B1 are flexible conductive yarn fabrics arranged in a downward position on the inner side of the elbow.
  • the user puts on the clothing prepared in Example 1, and makes the flexible conductive yarn fabric move in a direction that is not parallel to the flexible magnetic yarn fabric by bending the elbow of the human body, so as to achieve bending deformation and oblique cutting
  • the magnetic induction line generates electromagnetic induction current to convert mechanical energy into electrical energy, and then stores the electrical energy in the charging adapter device to realize the self-powered charging function.
  • the positions of the flexible magnetic yarn fabrics A and A1 can also be set in the downward position inside the elbow of the upper garment, and the flexible conductive yarn fabrics B and B1 are correspondingly arranged in the upward position on the inner side of the elbow of the upper garment.
  • the part When the part is bent, it can also achieve the effect of bending and obliquely cutting the magnetic line of induction, and realize the function of self-generation.
  • the bending electromagnetic induction power generation flexible fabric composed of the magnetic yarn fabric and the conductive coil fabric produced in this embodiment can generate AC induction power with a peak voltage of 1.9 volts when the tester’s walking speed is 1.3 m/s.
  • Figure 5 shows the induced electromotive force generated during the walking process.
  • Embodiments 2 and 3 The difference between Embodiments 2 and 3 and Embodiment 1 is that the mass concentration of magnetic powder in step S2 is different.
  • the mass concentration of magnetic powder is 40%, and in Embodiment 3, the mass concentration of magnetic powder is 70%; It can generate a peak voltage of 2.3V, and Embodiment 3 can generate a peak voltage of 3.3V;
  • the difference between the embodiment 4 and the embodiment 2 lies in the size of the magnetic fabric and the corresponding coil size.
  • the size of the magnetic fabric in the embodiment 4 is 10 ⁇ 10 cm, and the peak voltage of the embodiment 4 can be 3.0V;
  • Example 5 The difference between Example 5 and Example 2 is that the diameter of the conductive filament is different.
  • the diameter of the filament is 0.01 mm, and Example 5 can generate a peak voltage of 2.7V;
  • Example 6 The difference between Example 6 and Example 2 lies in the difference in the moving speed of the tester.
  • the moving speed of the tester in Example 6 is 2.5m/s, and the peak voltage generated in Example 6 is 4.3V;
  • Example 7 The difference between Example 7 and Example 2 is that the number of winding turns of the conductive fiber is different.
  • the number of winding turns in Example 7 is 200, and Example 7 can generate a peak voltage of 4.5V;
  • Example 8 The difference between Example 8 and Example 2 is that the size of the prepared composite fiber strips is different, and the fixing method is different. When fixed at the knee joint, Example 8 can generate a peak voltage of 2.5V; the detailed parameters are shown in Table 1 below.
  • Yarn test process Cut the electromagnetic yarn to the same length (about 5cm), and wind a conductive copper wire on the surface to form a closed loop. Then fix the electromagnetic yarn sample on the horizontal moving platform, and connect the copper wire to the digital multimeter, and then operate the program to make the moving platform at a certain speed 500mm/s (approximately walking speed 1.3m/s) and displacement ( ⁇ 200mm) reciprocating movement, the electromagnetic yarn is stretched back and forth according to a certain amount of deformation and displacement rate, and the electrical signal generated during this process is recorded by a digital electric meter.
  • 500mm/s approximately walking speed 1.3m/s
  • displacement ⁇ 200mm
  • Fabric testing process the area of electromagnetic fabric and closed loop are both 5x5cm 2 (or 10x10cm 2 ). During the test, fix the fabric on the bottom plane of the Z axis of the three-axis moving platform, and fix the closed loop on the desktop to ensure the fabric plane It can be completely parallel to the coil plane and connect the copper wire to the digital multimeter.
  • the Z axis of the mobile platform is set to reciprocate at a certain speed of 500mm/s (approximately walking speed of 1.3m/s) and displacement ( ⁇ 200mm) through the program setting, so that the electromagnetic fabric follows the Z axis At the same time, it performs relative reciprocating motion with the closed coil, thereby generating an induced voltage, and recording the electrical signal generated by this process through a digital electric meter.
  • Table 1 Main participation and peak voltage generated in different embodiments
  • a clothing with joint bending electromagnetic induction power generation and a preparation method thereof including the following steps:
  • preparing flexible fiber strips S1 slit the non-woven flexible surface material with an areal density of 100 g/m2 into flexible fiber strips S1 with a linear density of 500 g/km;
  • preparing a composite fiber strip S2' Put a fiber strip S2 with a width of 20 mm and a linear density of 400 g/km into the reaction vessel, and the conductive polymer is polymerized in situ to grow on the fiber strip After the conductive polymer is drawn, dried and dried, a composite fiber strip with conductive polymer is obtained; the composite fiber strip is immersed in a neodymium iron boron magnet with a particle diameter of 500 nm and a magnetic powder mass concentration of 40% A padding process is performed in the dispersion liquid, so that the magnetic powder in the dispersion liquid is extruded into the structural surface of the composite fiber strip after in-situ polymerization, and dried to make the structure surface of the fiber strip Growing the conductive polymer in the conductive polymer and covering the outer layer of the conductive polymer with the magnetic powder to obtain a composite fiber strip S2';
  • a pair of bobbin packages of flexible fiber tape S1 and a bobbin package of composite fiber tape S2' are respectively placed in the two additional sets of the improved wing spindle roving device 100
  • a pair of flexible fiber strip S1 bobbin packages are respectively located on both sides of the bobbin package of composite fiber strip S2', two flexible fiber strips S1 and one composite fiber strip S2 'At the front jaws overlap each other, and the composite fiber strip S2' is located in the middle of the two flexible fiber strips S1, forming a sandwich-like composite strip, the composite strip is output from the front jaw, and the output The linear speed is 15 m/min.
  • the output composite strip is twisted and drawn by the wing spindle, and the twisting force twists the composite strip three-dimensionally to strengthen the flexible fiber strip S1 and the middle one.
  • the entanglement between the composite fiber strips S2', the pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' stretches in the length direction, and the composite fiber strip S2' runs along the radial direction in the composite strip. It is evenly wrapped and wrapped, and the composite strip after twisting and drafting forms a composite yarn sliver with a fineness of 1000 tex.
  • the composite yarn sliver passes through the top hole of the rotating wing spindle of the roving frame in turn.
  • the side hole 9, the hollow arm 10, the palm pressing rod 11, and the palm pressing leaf 12 are finally wound on the core yarn bobbin 13 to obtain a magnetic yarn with a core-sheath structure;
  • step S4 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S3 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric with a size of 5 ⁇ 5 cm, and perform magnetization treatment to obtain a flexible magnetic field strength of 0.53T Magnetic yarn fabric;
  • Conductive filament core-spun yarn is prepared by using conductive filament as the core filament and outsourcing short fibers, and then two conductive filament core-spun yarns are twisted to form a torque-balanced conductive filament sheath Core yarn strands;
  • Embroidering of conductive coil fabric Wrap 100 turns of conductive core-spun yarn into conductive coils to form a closed loop, and sew 20 of the conductive coils in series on the wear-resistant substrate to obtain a 5 ⁇ 5cm size
  • the flexible conductive yarn fabric forms a coil conductor; the conductive filaments in the conductive filament core-spun yarn are copper wires, and the diameter of the conductive filaments is 0.05 mm.
  • the flexible magnetic yarn fabric prepared in step S4 and the flexible conductive yarn fabric prepared in step S12 are separately arranged on opposite sides of the inner side of the knee of the trouser leg of the garment body; and an energy storage unit is arranged on the The garment body is on the pants; the energy storage unit is electrically connected to the flexible conductive yarn fabric to prepare a knuckle bending electromagnetic induction power generation garment;
  • the flexible conductive yarn fabric moves in a direction that is not parallel to the plane of the flexible magnetic yarn fabric to achieve bending deformation and obliquely cut magnetic lines of induction to generate electrical energy .
  • A2 is a flexible magnetic yarn fabric arranged in an upward position on the inner side of the knee of the trouser leg
  • B2 is a flexible conductive yarn fabric arranged in a downward position on the inner side of the knee of the trouser leg.
  • the user puts on the clothing prepared in Example 2 and makes the flexible conductive yarn fabric move in a direction that is not parallel to the flexible magnetic yarn fabric by bending the human knee to realize the bending deformation oblique direction
  • the magnetic induction line is cut to generate electromagnetic induction current to convert mechanical energy into electrical energy, and then the electrical energy is stored in a lithium battery to realize the self-powered charging function.
  • the position of the flexible magnetic yarn fabric A2 can also be set in the downward position of the inner side of the knee of the trouser leg, and the flexible conductive yarn fabric B2 is correspondingly set in the upward position of the inner side of the knee of the trouser leg. It can also achieve the effect of bending and deforming obliquely cutting the magnetic induction line, and realize the function of self-generation.
  • the curved electromagnetic induction power generating flexible fabric composed of the magnetic yarn fabric and the conductive coil fabric produced in this embodiment can generate AC induction power with a peak voltage of 2.5 volts when the tester's walking speed is 1.3 m/s.
  • the central axis of the magnetic yarn fabric and the central axis of the conductive yarn fabric can be perpendicular or Are parallel to each other, and the distance between the above two central axes is less than half of the sum of the width of the magnetic yarn fabric and the conductive yarn fabric. It can bend and deform obliquely to cut the magnetic lines of induction to generate electric energy.
  • the positions of the magnetic yarn fabric (see Figure 4) and the conductive yarn fabric on the garment body in the present invention are not limited to the positions shown in Figures 2 to 3, and can also be upper garments.
  • the elbows of the sleeves and/or other corresponding positions on the inner side of the knees of the trouser legs can effectively generate the electromagnetic induction effect in the present invention through bending motions, realize bending deformation and obliquely cut magnetic lines of induction to generate electric energy, so as to realize self-generation Function.
  • the magnetic powder may also be one or more of iron oxide magnetic powder, chromium dioxide magnetic powder, cobalt-iron oxide magnetic powder, and metal magnetic powder
  • the conductive filament may also be One or more of aluminum wire, silver wire, and gold wire.
  • the magnetic yarn fabric and conductive yarn fabric prepared therefrom can produce electromagnetic induction effect and generate induced current to convert mechanical energy during bending action. It is electric energy to realize the function of self-generation.
  • the present invention provides a joint bending electromagnetic induction power generation garment, and a preparation method and application thereof.
  • the magnetic powder is uniformly dispersed in the yarn, and the flexible magnetic yarn fabric is obtained by using the textile technology; then the flexible magnetic yarn fabric and the flexible conductive yarn fabric are respectively sewn on the inner side of the sleeve elbow of the garment body and/or When the elbow bending action and/or knee bending action are performed on the opposite sides of the inner side of the knee of the trouser leg, the flexible conductive yarn fabric cuts the magnetic induction movement in the magnetic field generated by the flexible magnetic yarn fabric to generate electrical energy to achieve bending and oblique deformation.
  • the preparation method provided by the invention is simple to operate, and the composition, structure and performance of the material can be adjusted according to actual applications.
  • This embodiment provides a method for producing a swinging electromagnetic induction power generating flexible fabric, including a method for producing a magnetic yarn fabric and a method for producing a conductive coil fabric.
  • the production method of the magnetic yarn fabric is shown in Figure 6, and specifically includes the following steps:
  • the non-woven flexible face material roll with a surface density of 20g/m 2 is installed on a cutting machine, and cut into a fiber strip S1 with a linear density of 100g/km, and then wound on a bobbin to obtain a fiber strip With S1 roll.
  • the magnetic powder in the magnetic powder tank is neodymium iron boron magnetic powder with a particle size of 1 ⁇ m.
  • the sticky strip immersed in the magnetic powder tank is pressed by the pressure roller set to make the magnetic powder in the magnetic powder tank adhere to the surface of the sticky strip to form a magnetic powder prepolymer S2', and then It is wound on the bobbin to obtain the magnetic powder prepolymer S2' package.
  • an unwinding device is added behind the front roller nip formed by the engagement of the front roller 6 and the front rubber roller 5 corresponding to each spindle of the wing roving frame, and the unwinding device includes the front roller nip
  • the core strip guide roller 4 behind the opening, the core strip guide roller 4 is provided with a core strip unwinding shaft; the upper side of the core strip guide roller 4 is provided with a strip unwinding shaft, an electrostatic spinning device 1,
  • the electrostatic collecting plate 2 and the cloth guiding roller 3, the electrostatic spinning device 1 and the electrostatic collecting plate 2 are arranged correspondingly to form an electrostatic spinning area, and the cloth guiding roller 3 is located in front of the electrostatic spinning area.
  • the strip unwinding shaft is located behind the electrostatic spinning zone; the lower side of the core guide roller 4 is provided with the same strip unwinding shaft, electrostatic spinning device 1, in a symmetrical manner with the upper side. Static collecting plate 2 and cloth guiding roller 3.
  • a pair of fiber strip S1 packages obtained in step A1 are placed on the strip unwinding shafts located on the upper and lower sides of the core guide roller 4 respectively, and a magnetic powder prepolymer S2 obtained in step A2
  • the package is placed on the core strip unwinding shaft, so that a pair of fiber tape S1 packages are respectively located on both sides of the magnetic powder prepolymer S2’ package.
  • a layer of polyester nanofiber film is compounded on the inner side of the fiber strip S1 to prepare a composite fiber strip online.
  • the fiber strip is fed into the front roller nip through the cloth guide roller 3; the magnetic powder prepolymer S2' unwound from the magnetic powder prepolymer S2' package is fed into the front roller through the core strip guide roller 4.
  • the nip of the roller contacts and merges with the inner sides of the two composite fiber strips, and is clamped in the middle by the upper and lower composite fiber strips to form a sandwich composite strip; the sandwich composite strip is 15m/ After the speed of min.
  • the composite fiber strips wrap the magnetic powder prepolymer S2' into a yarn to form a fineness
  • the magnetic yarn core is 400tex; the magnetic yarn core passes through the top hole 7, the side hole 8, the hollow arm 11, the palm pressing lever 12 and the palm pressing leaf 10 that rotate on the roving frame, and finally winds to a speed of On the 1000r/min bobbin, a magnetic yarn core package 9 is formed.
  • the magnetic yarn core package obtained in step A3 is placed on a friction spinning machine, and the core yarn of the friction spinning machine is fed into the guide hook, and fed to two rotating shafts in the same direction in a manner parallel to the friction roller shaft. Between the friction rollers; at the same time, the short fiber strips are drawn and carded by the drafting mechanism and the carding mechanism of the friction spinning machine in turn to obtain a short fiber web.
  • the short fiber web is under the negative pressure of the two friction rollers. Under the action of suction, it is continuously condensed on the surface between the two friction rollers in a manner perpendicular to the rotating shaft of the friction roller, and merges with the magnetic yarn core located between the two friction rollers.
  • the short fiber web merged with the magnetic yarn core is continuously wrapped on the surface of the magnetic yarn core under the action of the same rotation and twisting of the two friction rollers to form the magnetic yarn core as the core,
  • the magnetic weft yarn of core-shell structure with the short fiber net as the shell; the magnetic weft yarn is then passed through the nip of the yarn drawing roller, the yarn guide hook, and the winding groove of the friction spinning machine in turn, and finally is wound into the bobbin , Forming a magnetic weft yarn package.
  • the high-strength spun yarn warp-winding, warping, and threading processes are prepared into high-strength wear-resistant warp yarn, and then the high-strength wear-resistant warp yarn and the magnetic weft yarn obtained in step A4 are placed on a rapier loom for weaving of warp and weft interweaving ,
  • the magnetic yarn fabric with a mass percentage of magnetic powder of 40% is obtained.
  • the specific method for magnetizing the magnetic yarn fabric is as follows: first place the sample in the inner cavity of a cylindrical magnetizing table with a diameter of 50 cm and a depth of 3 cm. There is a magnetizing coil outside the inner cavity of the cylindrical magnetizing table. , At the moment of 9 kV and 10 milliseconds, it can provide the inner cavity with an instantaneous vertical magnetic field with a central strength of 3 Tesla. Place the above-mentioned magnetic yarn fabric horizontally in the inner cavity of the magnetizing table for magnetization. After the magnetization is completed, the sample is laid flat, and there will be a magnetic field with the N pole in the vertical direction inside the sample.
  • the sample containing neodymium iron boron magnetic powder is instantly magnetized to the magnetic saturation intensity in the inner cavity of the magnetizing station, and the residual magnetic field strength after magnetization is positively correlated with the content of the neodymium iron boron magnetic powder contained in the sample.
  • the production method of the conductive coil fabric includes the following steps:
  • the conductive filament unwound from the conductive filament package is fed into the front roller jaws of the ring spinning machine through the thread guide device.
  • the conductive filament is a copper wire with a diameter of 0.1 mm;
  • the roving unwound from the short-fiber roving package enters the drafting system of the spinning frame through the yarn guide rod and the yarn feeding bell in turn for drafting, and the fiber sliver obtained after drafting is fed to the front roller of the ring spinning frame
  • the jaws overlap with the conductive filaments to form a core-spun composite fiber strip.
  • the core-spun composite fiber strip forms a conductive wire core-spun yarn under the action of ring twisting.
  • the conductive wire core-spun yarn is sequentially passed through the yarn guide hook, the steel ring, and the traveler, and finally is wound on the spinning tube to form Conductive yarn core-spun yarn package.
  • the two conductive yarn core-spun yarns unwound from the two packages of the conductive yarn core-spun yarn are parallel to and fed to the grip jaws of the ring twister, and applied on the ring twister Under the twisting and twisting action opposite to the twisting direction of the conductive filament core-spun yarn, the twisting forms a torque-balanced conductive filament core-spun yarn strand.
  • the conductive core-spun yarn strands obtained in step B1 are embroidered on the surface of the wear-resistant fabric in a zigzag pattern to obtain a conductive coil fabric.
  • the swinging electromagnetic induction type generating flexible fabric includes a magnetic yarn fabric and a conductive coil fabric.
  • the magnetic yarn fabric and the conductive coil fabric are in actual use. It should be placed on the surface of two relatively swinging parts; the magnetic yarn fabric is formed by interweaving high-strength wear-resistant warp yarns and magnetic weft yarns.
  • the magnetic yarn core is formed by a composite fiber strip wrapped with magnetic powder, and the yarn sheath is formed by tightly wrapping high-strength wear-resistant fibers; the conductive coil fabric is embroidered on a wear-resistant fabric substrate by conductive yarn core-spun yarn strands Formed, the embroidery pattern is in a back shape.
  • the magnetic yarn fabric and conductive coil fabric produced in this embodiment not only have high flexibility, but also can realize self-generation.
  • the oscillating electromagnetic induction power generation flexible fabric composed of the magnetic yarn fabric and the conductive coil fabric produced in this embodiment can generate AC induction power with a peak voltage of 2.0 volts when the tester's walking speed is 1.2 m/s.
  • the induced electromotive force generated during the walking process is shown in Figure 7. It can be seen that, in this embodiment, the magnetic powder is evenly wrapped in the yarn and the magnetic yarn fabric is prepared by the weaving method.
  • the magnetic powder contained in the magnetic yarn fabric can be used to make it compatible with this embodiment
  • the prepared conductive coil fabric When the prepared conductive coil fabric is deformed or displaced, an induced electromotive force can be generated, thereby realizing the function of self-generation; it can also make the magnetic yarn fabric and the conductive coil fabric have soft, flexible, and woven characteristics, which is convenient for sewing or The method of weaving is applied to clothing, which ensures the user's wearing comfort while achieving power generation, solves the problem of poor user experience caused by the poor softness of the sewn magnetic body in the prior art, and is more suitable for actual use Demand.
  • the production method provided by this embodiment can make the magnetic powder in the obtained magnetic yarn fabric continuously and uniformly arranged linearly, so that the performance of the finally produced swing electromagnetic induction power generating flexible fabric is more stable and controllable.
  • Embodiments 10 to 11 respectively provide an application of a swinging electromagnetic induction type power generating flexible fabric.
  • the swinging electromagnetic induction power generating flexible fabric produced in Example 11 is applied to a power generating top, and its structure diagram is shown in Figure 8;
  • Example 11 the swinging electromagnetic induction power generating flexible fabric produced in Example 9 is applied For power generating pants, the schematic diagram of the structure is shown in Figure 9.
  • Example 10 when the swinging electromagnetic induction power generation flexible fabric produced in Example 9 was applied to a power generation top, the magnetic yarn fabric was sewn on the side of the top body, and the conductive loop fabric was sewn on On the inner side of the sleeves opposite to the side of the body, the magnetic yarn fabric is arranged opposite to the conductive loop fabric, and an adapting device connected with the conductive loop fabric is provided.
  • the detailed component diagram of the adapting device is shown in FIG. 10.
  • the adapting device includes a bridge rectifier circuit and an electric energy storage device (battery or capacitor).
  • the electrical energy storage device is a battery; in other embodiments, the electrical energy storage device may also be a capacitor.
  • the conductive loop fabric located on the inner side of the sleeve and the magnetic yarn fabric on the side of the body move relative to each other, so that part of the conductive filaments in the conductive loop fabric are formed in the magnetic yarn fabric. Cut the magnetic line of induction in the magnetic field, and the generated AC induction electric energy is converted into DC electric energy by the bridge rectifier circuit in the adapter device connected to the conductive coil fabric, which supplies electric energy to other wearable devices or stores it in an electric energy storage device In this way, the principle of electromagnetic induction is used to convert the mechanical energy of the human body's arm swinging process into electrical energy to achieve the effect of generating electricity.
  • Example 11 when the swinging electromagnetic induction power generating flexible fabric produced in Example 9 is applied to power generating pants, the magnetic yarn fabric is sewn on the inner side of a trouser leg, and the conductive loop fabric is sewn It is made on the inner side of the other trouser leg, so that the magnetic yarn fabric is arranged opposite to the conductive loop fabric, and an adapting device connected with the conductive loop fabric is provided.
  • the swing between the legs causes the conductive coil fabric and the magnetic yarn fabric to move relative to each other, which can also generate AC induction electric energy, and the electric energy is generated by the adapter connected to the conductive coil fabric Storage, so as to convert the mechanical energy of the human body's walking process into electrical energy to achieve the effect of power generation.
  • the swinging electromagnetic induction power generating flexible fabric provided by the present invention can be applied to power generating tops and power generating pants, and will use electromagnetic induction to convert the mechanical energy of the swing arm/walking process into electrical energy.
  • This method not only improves the utilization rate of energy, but also solves the problem that most of the current wearable devices need to rely on external power supply or work with energy storage devices (such as batteries) to be used normally. Further development in the direction of quantification, convenience and intelligence.
  • the mass percentage of the magnetic powder in the magnetic yarn fabric can be It can be adjusted in the range of 10% to 70%, and the magnetic strength of the magnetic yarn fabric can be adjusted in the range of 0.1 to 0.8T;
  • the magnetic powder can be neodymium iron boron magnetic powder, neodymium nickel cobalt magnetic powder, iron oxide magnetic powder, One or more of chromium dioxide magnetic powder, cobalt-iron oxide magnetic powder, and metal magnetic powder.
  • the particle size of the magnetic powder can be 0.01-500 ⁇ m; the conductive filament can also be copper wire, aluminum wire, or silver wire One or more of the gold wires are mixed, and the diameter of the conductive filaments can be 0.01-1 mm, all of which belong to the protection scope of the present invention.
  • the areal density of the non-woven flexible face material used in step A1 may be 2 ⁇ 100g/m 2 , the linear density of the fiber strip S1 obtained by slitting can be 10 ⁇ 500g/km; the areal density of the adhesive tape S2 in step A2 can be 10 ⁇ 50g/m 2 ; the sandwich composite in step A3
  • the output speed of the nip of the front roller can be adjusted in the range of 10 ⁇ 25m/min, and the twisting speed of the wing spindle can also be adjusted in the range of 500 ⁇ 1400r/min, and the fineness can be adjusted in the range of 40 ⁇ 2000tex.
  • the magnetic yarn core within the scope; the material of the nanofiber membrane in step A3 can be one or more of polyester, polyolefin, polyamide, and graft copolymer, all of which belong to the protection scope of the present invention
  • the pattern embroidered by the conductive wire core-spun strands on the conductive coil fabric can be adjusted to form one or more closed loops;
  • the weaving or sewing position of the magnetic textile fabric and the conductive coil fabric can also be adjusted, so that the magnetic yarn fabric and the conductive coil fabric are located on the surfaces of two relatively swinging parts respectively. , All belong to the protection scope of the present invention.
  • the present invention discloses a swinging electromagnetic induction type power generating flexible fabric and its production method and application.
  • the oscillating electromagnetic induction type power generating flexible fabric includes a magnetic yarn fabric and a conductive coil fabric respectively located on the surfaces of two relatively oscillating parts;
  • the magnetic yarn fabric includes a magnetic yarn core formed by a composite fiber strip wrapped with magnetic powder;
  • the conductive coil fabric is embroidered on the fabric base material by conductive filament core-spun yarn strands.
  • a stable magnetic yarn fabric is prepared by evenly wrapping the magnetic powder in the yarn, using a weaving method to prepare a stable magnetic yarn fabric, and then combining it with a conductive coil fabric containing conductive filaments to produce a flexible fabric capable of self-generation;
  • the flexible fabric can be applied to clothing, using electromagnetic induction to convert the mechanical energy generated by the human body swing/walking process into electrical energy, while achieving power generation while ensuring the softness of the clothing, it meets the needs of actual use and has huge applications value.
  • this embodiment provides a wearable garment that generates electricity by airflow.
  • the garment includes a garment body and is designed with a double-layer structure.
  • the preparation method thereof includes the following steps:
  • a pair of bobbin packages of flexible fiber strips S1 and a bobbin package of composite fiber strips S2' are respectively placed on the improved wing-spindle roving device 100 added to the retreat
  • a pair of flexible fiber strip S1 bobbin packages are respectively located on both sides of the bobbin package of composite fiber strip S2'
  • two flexible fiber strips S1 and one composite fiber strip S2' are in The front jaws overlap each other
  • the composite fiber strip S2' is located in the middle of the two flexible fiber strips S1, forming a sandwich-like composite strip
  • the composite strip is output from the front jaw, and the output linear velocity At 15 meters per minute, the output composite strip is twisted and pulled by the wing spindle, and the twisting force twists the composite strip three-dimensionally to strengthen the flexible fiber strip S1 and the composite fiber in the middle.
  • the wrapping and entanglement between the strips S2', the pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' stretches in the length direction, and the composite fiber strip S2' is uniformly distributed along the radial direction in the composite strip.
  • the composite yarn sliver passes through the top hole 8 and the side hole of the rotating wing spindle of the roving frame.
  • the hollow arm 10, the palm pressing rod 11, and the palm pressing leaf 12 are finally wound on the core yarn bobbin 13 to obtain a magnetic yarn with a core-sheath structure;
  • step S24 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S23 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric, and performing magnetization treatment to obtain a flexible magnetic yarn fabric with a magnetic field strength of 0.4T;
  • the edge of the flexible conductive yarn fabric prepared in step S1 and the inner flexible magnetic yarn fabric prepared in step S2 are fixedly connected to each other; the energy storage unit and the flexible conductive yarn are fixedly connected to each other
  • the fabric is electrically connected to produce a fabric that generates electricity by airflow; the inner flexible magnetic yarn fabric is located on the inner side of the front of the garment body; the energy storage unit wireless charging device (not shown in Figure 11) and the surface flexible conductive yarn
  • the fabric is electrically connected, and the fabric for generating electricity by airflow is prepared, as shown in Figure 11, where A'is the inner flexible magnetic yarn fabric (the part drawn with a dashed outline is located on the inner side of the front of the garment body), and B'is the flexible surface layer Conductive yarn fabric (located at the front of the garment body).
  • the surface layer flexible conductive yarn fabric B' is also provided with two left and right openings in the vertical direction with a length of about 15 cm.
  • the external airflow can enter the airflow space in the middle of the double-layer structure through the opening to circulate, so as to drive the surface layer fabric to deform and cut the magnetic lines of induction, generate electromagnetic induction current to convert mechanical energy into electrical energy, and then store the electrical energy in the storage.
  • the power generation function is realized.
  • the user wears wearable clothing that uses airflow to generate electricity for walking or running.
  • the airflow enters through the first opening D and flows in the space between the two layers of the surface fabric B'and the inner fabric A', and then From the second opening E, with the help of air flow (arrow C is the direction of air flow), the surface layer of flexible conductive yarn fabric B'flutters, generating undulating deformation (as shown in Figure 12), so that the surface layer of flexible conductive yarn fabric B'produces irregular wave motions that are not parallel to the inner flexible magnetic yarn fabric A', cuts the magnetic lines of induction, produces electromagnetic induction effects, thereby generating electric energy, and then stores the electric energy in the wireless charging device of the energy storage unit to complete power generation and Electric energy storage enables wireless charging of electronic devices.
  • the airflow-generating wearable clothing composed of the magnetic yarn fabric and the conductive coil fabric produced in this embodiment can generate AC induction power with a peak voltage of 0.8 volts.
  • the tester's walking process The resulting induced electromotive force diagram is shown in Figure 14.
  • this embodiment provides a vest that includes a vest body and has a double-layer structure.
  • the preparation method includes the following steps:
  • the output composite strip is twisted and pulled by the wing spindle, and the twisting force twists the composite strip three-dimensionally to strengthen the flexible fiber strip S1 and the middle one.
  • the entanglement between the composite fiber strips S2', the pulling force pulls the inner fibers of the composite strip and the composite fiber strip S2' stretches in the length direction, and the composite fiber strip S2' runs along the radial direction in the composite strip. It is evenly wrapped and wrapped, and the composite strip after twisting and drafting forms a composite yarn sliver with a fineness of 1000 tex.
  • the composite yarn sliver passes through the top hole of the rotating wing spindle of the roving frame in turn.
  • the side hole 9, the hollow arm 10, the palm pressing rod 11, and the palm pressing leaf 12 are finally wound on the core yarn bobbin 13 to obtain a magnetic yarn with a core-sheath structure;
  • step S14 preparing a flexible magnetic yarn fabric: using the magnetic yarn prepared in step S13 as a weft yarn and a high-strength wear-resistant yarn as a warp yarn to obtain a fabric, and performing magnetization treatment to obtain a flexible magnetic yarn fabric with a magnetic field strength of 0.8T; Said sewing on the front position of the garment body to prepare a surface layer flexible magnetic yarn fabric;
  • Wrap 50 turns of the conductive core-spun yarn into a flexible conductive coil to form a closed loop, and sew 40 of the flexible conductive coils in series on the fabric base to prepare an inner layer of flexible conductive yarn fabric to form a coil conductor;
  • the conductive filament core-spun yarn is provided with conductive filaments, the conductive filaments are copper wires, and the diameter of the conductive filaments is 0.02mm;
  • the superimposed surface layer flexible magnetic yarn fabric prepared in step S1 and the edge of the inner flexible conductive yarn fabric prepared in step S2 are fixedly connected to each other; the energy storage unit is connected to the flexible conductive yarn
  • the fabric is electrically connected to produce a fabric that generates electricity by airflow; the inner flexible conductive yarn fabric is located inside the front of the garment body; the energy storage unit wireless charging device (not shown in Figure 13) and the inner flexible conductive yarn
  • the fabric is electrically connected, and the fabric for generating electricity by airflow is prepared, as shown in Figure 13, where A1' is the surface layer of flexible magnetic yarn fabric (located at the front of the vest), and B1' is the inner layer of flexible conductive yarn fabric (drawn outline with a dashed line) Part, located on the inside of the front of the vest).
  • the surface layer of the flexible magnetic yarn fabric A1' is also provided with two semicircular openings with a length of about 20 cm on the left and right.
  • the external airflow can enter the airflow space in the middle of the double-layer structure through the opening to circulate, so as to drive the surface layer fabric to deform and cut the magnetic lines of induction, generate electromagnetic induction current to convert mechanical energy into electrical energy, and then store the electrical energy in the storage.
  • the power generation function is realized.
  • the user wears a vest with the aid of the airflow power generation field surgical examination jacket for walking or running.
  • the air flow enters from the first opening D1 and flows in the space between the two layers of the surface fabric A1' and the inner fabric B1' , And then flow out from the second opening E1, with the help of air flow (arrow C1 is the flow direction of the air flow), the surface layer of flexible magnetic yarn fabric A1' is fluttered, and undulating deformation occurs, making the surface layer of flexible magnetic yarn fabric A1' produce non-parallel
  • the irregular undulating movement of the inner flexible conductive yarn fabric B1' cuts the magnetic lines of induction and produces electromagnetic induction effects, thereby generating electric energy, and then storing the electric energy in the energy storage unit to complete power generation and electric energy storage.
  • the airflow-generating wearable clothing composed of the magnetic yarn fabric and the conductive coil fabric produced in this embodiment can generate AC induction power with a peak voltage of 0.6 volts.
  • the tester s walking process
  • the resulting induced electromotive force diagram is shown in Figure 15.
  • the number of openings on the surface fabric is not limited to two, but can also be 1, 3, 4 or more, and the air flow enters from several openings.
  • the airflow space of the double-layer structure flows out from several other openings. With the help of the airflow, it can also achieve the effect of driving the surface layer fabric to deform and cut the magnetic line of induction to generate electricity.
  • the magnetic powder may also be one or more of iron oxide magnetic powder, chromium dioxide magnetic powder, cobalt-iron oxide magnetic powder, and metal magnetic powder;
  • the wire can also be one or more of aluminum wire, silver wire, and gold wire.
  • the fabric prepared therefrom can produce electromagnetic induction effects, generate induced currents, and realize the function of generating electricity when the airflow fluctuations produce deformation actions. .
  • the present invention provides a fabric for generating electricity by airflow, and a preparation method and application thereof.
  • the fabric has a double-layer structure design, including a surface layer fabric and an inner layer fabric that are superimposed on each other but not interwoven, and an airflow space formed between the two, and the surface layer fabric is provided with at least one opening.
  • one of the surface layer fabric and the inner layer fabric is a flexible magnetic yarn fabric, and the other is a flexible conductive yarn fabric.
  • the external airflow can enter the airflow space in the middle of the double-layer structure through the opening to circulate, so as to drive the surface layer fabric to deform and cut the magnetic line of induction, generate electromagnetic induction current, and realize the power generation function, which solves the need for the existing wearable devices to rely on external
  • the defect that power supply or work with energy storage devices can only be used normally will help it develop in the direction of lighter weight, convenience and intelligence.
  • the preparation method provided by the invention is simple to operate, and the composition, structure and performance of the material can be adjusted according to actual applications.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)

Abstract

La présente invention concerne un vêtement de génération de puissance basée sur l'induction électromagnétique, un procédé de préparation et une application associés. Dans la présente invention, de la poudre magnétique est dispersée uniformément dans un fil, et un tissu de fil magnétique flexible est obtenu à l'aide d'une technique de filage ; le tissu de fil magnétique flexible et un tissu de fil conducteur flexible sont ensuite cousus de manière correspondante sur les côtés intérieurs des coudes des manches d'une pièce de vêtement et/ou des deux côtés opposés des côtés intérieurs des genoux des jambes de pantalon. Lorsqu'une action de flexion du coude et/ou une action de flexion du genou sont effectuées, le tissu de fil conducteur flexible effectue un mouvement de coupure de ligne d'induction magnétique dans un champ magnétique généré par le tissu de fil magnétique flexible pour générer de l'énergie électrique, la déformation de courbure coupant de manière oblique des lignes d'induction magnétique pour la génération et le stockage d'énergie. Ainsi, le défaut selon lequel les dispositifs vestimentaires existants doivent être basés sur une alimentation électrique externe ou fonctionnent conjointement avec des dispositifs de stockage d'énergie à utiliser normalement est résolu, ce qui facilite le développement ultérieur de dispositifs vestimentaires en vue d'obtenir un poids léger, de la commodité, de l'intelligence et analogues. Le procédé de préparation selon la présente invention est facile à utiliser, et les compositions, les structures et les performances des matériaux peuvent être régulées et commandées selon des applications réelles.
PCT/CN2021/088138 2020-04-17 2021-04-19 Vêtement de génération de puissance basée sur l'induction électromagnétique, procédé de préparation et utilisation associés WO2021209069A1 (fr)

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CN202010303366.1A CN111636130B (zh) 2020-04-17 2020-04-17 一种摆动电磁感应式发电柔性织物及其生产方法与应用
CN202010303366.1 2020-04-17
CN202010303505.0A CN111636131B (zh) 2020-04-17 2020-04-17 借助气流发电织物及其制备方法与应用
CN202010303338.X 2020-04-17
CN202010303338.XA CN111588105B (zh) 2020-04-17 2020-04-17 关节弯曲电磁感应发电的服装及其制备方法和应用
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