CN112918026A - Flexible conductive fabric - Google Patents
Flexible conductive fabric Download PDFInfo
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- CN112918026A CN112918026A CN202110277133.3A CN202110277133A CN112918026A CN 112918026 A CN112918026 A CN 112918026A CN 202110277133 A CN202110277133 A CN 202110277133A CN 112918026 A CN112918026 A CN 112918026A
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- conductive
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- conductive wire
- cloth
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- 238000004804 winding Methods 0.000 claims description 9
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- 229910052751 metal Inorganic materials 0.000 claims description 7
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- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 claims description 2
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06Q—DECORATING TEXTILES
- D06Q1/00—Decorating textiles
- D06Q1/08—Decorating textiles by fixation of mechanical effects, e.g. calendering, embossing or Chintz effects, using chemical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
- D10B2403/0243—Fabric incorporating additional compounds enhancing functional properties
- D10B2403/02431—Fabric incorporating additional compounds enhancing functional properties with electronic components, e.g. sensors or switches
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a flexible conductive fabric which comprises a fabric and a braided compound yarn, wherein the braided compound yarn is formed by mixing a conductive wire and a non-conductive wire, the non-conductive wire is used for fixing the conductive wire on the surface of the fabric in a form with certain bending capacity, so that the fabric and the braided compound yarn are stretched and reset at the same time, and the conductive performance is kept unchanged. The invention realizes the flexible conductive fabric capable of being electrified with the conductive wire, which enables the conductive wire to have certain elastic recovery performance through a preset arrangement mode, and is more flexibly suitable for wearable equipment. The flexible conductive fabric adopts a continuous conductive wire, so that the resistance is stable, and stable data transmission can be realized. The flexible conductive fabric is skin-friendly and non-sensitive: through the process treatment, after the conductive wire is combined with the cloth, the fabric has good skin-friendly performance, is suitable for daily wearing, and further provides support for an intelligent wearable technology.
Description
Technical Field
The invention belongs to the technical field of intelligent wearing, and particularly relates to a flexible conductive fabric applied to intelligent wearing, in particular to a flexible stretchable elastic conductive wire.
Background
With the development of wearable technology, it is a trend that electronic components and clothing are combined to form intelligent clothing, and data connection is needed among all the components, so that conductive wires are required to be arranged in the intelligent clothing, but the existing conductive wires are not enough in softness, so that the comfort level of the clothing is affected when the intelligent clothing is installed in the clothing, and the conductive wires are short in service life due to the fact that the clothing is easy to stretch when being worn or taken off, so that the use of the intelligent clothing is affected.
In recent years, intelligent wearing becomes a hotspot of development of the science and technology industry, and in connection and wiring of wearable electronic equipment, the conductive connecting piece needs to meet the requirements of miniaturization, good elasticity, high conductivity, comfort and the like, which are related to the stability and reliability of electric signal transmission. The conductive materials of the existing intelligent textiles have a plurality of forms, the stretchable conductive wire on the market is the fiber surface plated with metal particles, metal compounds, carbon powder or elastic conductive rubber, and has the problems of poor insulating property, complex production process, high production cost and the like, and the stretchable conductive wire woven by metal filaments has the problems of larger diameter, poor flexibility and the like. Under the realization can tensile prerequisite, current elasticity conductor wire can not realize simultaneously that resistance is little and the travelling comfort is good, can't the wide application in the connection of devices such as flexible battery, sensor, microchip. And traditional metal conductor wire and circuit board's pliability is poor, and the elastic recovery rate is low, can not bear great tensile, and fatigue resistance is poor, and its travelling comfort and reliability can not reach the requirement after applying to wearable electronic equipment.
To this end, an invention patent with application publication No. CN105895199A discloses a flexible stretchable washable conductive connecting member, which is a composite conductive connecting member formed by combining a conductive material and a non-conductive material; the conductive material is stretched and reset simultaneously with the non-conductive material and the electrical properties remain unchanged. The conductive material and the non-conductive material are processed into a fabric-shaped conductive connector through a combined weaving process in a flat cable mode; or the fabric-shaped conductive connecting piece is sealed in the elastic base material made of the non-conductive material to form a composite conductive connecting piece; or the conductive material is directly embedded in the elastic base material to manufacture the composite conductive connecting piece. Although this invention can achieve good stretching, it has the following disadvantages: firstly, the fabric of the invention is washable, but lacks an insulating layer or a protective layer, so that the conductive layer can be cracked or stripped under the violent washing such as machine washing; second, the invention does not have the ability to reliably integrate with other electronic components. Currently, conductive fibers and functional components are connected by adhesives, carbon conductive tapes, copper tapes, silver pastes, and the like, which have potential safety hazards in addition to low reliability. More critically, welding is predominant on a commercial scale and is suggested as a viable method of integrating wearable electronics, and fibers developed by the above methods are difficult to apply to welding; thirdly, the fabric-shaped conductive connecting piece is processed by a combined weaving process, the process has the problems of complex process and inflexible arrangement, the preparation of intelligent clothes or wearing equipment with different functions is difficult, and the thread diameter and the electric conductivity have great limitations due to the combination of a textile weaving process. Fourthly, although the fabric can transmit electric signals, the fabric cannot realize long-distance data transmission, and has great application limitation on intelligent wearable products.
Disclosure of Invention
The following presents a simplified summary of embodiments of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that the following summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
According to one aspect of the application, a flexible conductive fabric is provided, which comprises a fabric and a braided strand, wherein the braided strand is formed by mixing a conductive wire and a non-conductive wire, the non-conductive wire is used for fixing the conductive wire on the surface of the fabric in a form with certain bending capacity, so that the fabric and the braided strand are simultaneously stretched and reset, and the conductive performance is kept unchanged; the conductive wire extends outwards to a preset length outside the elastic cloth and is electrically connected with a connecting end, and the connecting end is used for connecting an electronic component; and carrying out insulation protection treatment after the conductive wire is connected with the connecting end, wherein the connection mode of the conductive wire and the connecting end comprises but is not limited to welding, hot pressing, riveting, crimping, winding and piercing connection.
Wherein the cloth includes, but is not limited to, knitted cloth and woven cloth.
Wherein, in order to adapt the flexible conductive fabric, an improved insulation protection mode is used. The step of conducting insulation protection treatment on the conducting wire and the connecting end head comprises the following steps: process 1: after the conductive wire is effectively connected with the connecting end, insulation treatment is carried out on the connecting position of the conductive wire and the connecting end, wherein the insulation treatment comprises but is not limited to winding by using an insulating adhesive tape, smearing by using an insulating adhesive and wrapping by using a heat-shrinkable tube; and (2) a process: infiltrating a hot melt adhesive or an insulating adhesive into the connecting position of the conductive wire and the connecting end, and preferably wrapping the connecting position to be beyond the connecting position; and 3, process: preparing a piece of cloth with a single-sided hot melt adhesive film, wherein the cloth is at least completely wrapped at the connecting position, aligning the side of the cloth with the hot melt adhesive film to the connecting position, sleeving the hot pressing position by using a customized die with a vacant position to avoid crushing the end head, completely sleeving the end head, heating and pressurizing to completely bond the cloth and the connecting position, and tightly fixing the end head on the cloth to completely protect the connecting position.
Secondly, aiming at the problem that the fabric in the prior art can transmit electric signals but cannot realize longer-distance data transmission, the type of the used conductive wires is changed, different conductive wires are adopted in the same pattern, and shielding wires are mixed in the conductive wires. The number of the shielding lines can be determined according to the function realized by the circuit design, for example, two common conductive lines and two shielding lines are arranged in a common 4PIN charging data line, so that data transmission and charging are realized. Data transmission is achieved by inserting shielding wires and the like, and application limitation on intelligent wearable products is broken through.
Specifically, the braided compound yarn comprises a conductive wire, an upper thread and a bottom thread, and the upper thread and the bottom thread are vertically interwoven to fix the conductive wire on the fabric. In the application, the upper thread and the bottom thread play a role in fixing the conductive wire on the fabric, and the conductive wire is embroidered on the fabric in a form with certain bending capacity, so that the conductive wire has certain elasticity.
Preferably, the conductive thread and the upper thread are arranged on one surface of the fabric, and the bottom thread is arranged on the other surface of the fabric.
Further preferably, the outer layer of the flexible conductive fabric is covered with a protective layer, and the protective layer includes, but is not limited to, a hot melt adhesive film, a cloth material and a waterproof film. When in actual manufacturing, the braided compound yarn is embroidered on the cloth in a certain shape, and then a layer of hot melt adhesive film, or the cloth or the waterproof film is hot pressed, so that the effect of protecting the conductive wire is achieved.
The braided plied yarn is processed on the cloth according to the winding displacement mode of the embroidery process, wherein the winding displacement mode comprises but is not limited to wave shape, zigzag shape, Z-shaped shape, sine curve shape, crescent shape, semi-arc shape, irregular shape and the like.
Further, the conductive wire is a wire with a conductive function, and includes but is not limited to a metal conductive wire, a carbon black conductive wire, a metal compound conductive wire, a polymer conductive wire, a shielding wire, a signal wire, an enameled wire, an insulated wire, a copper core cable, an aluminum core wire and an aluminum core cable, wherein the insulating sheath is made of one or more of resin, silica gel, PVC, silicone rubber, fiber, paint, a composite material, teflon, TPEE, TPU, insulating paint, insulating glue, insulating paper, plastic and the like. Preferably, the diameter of the conductive wire ranges from 10um to 1 cm.
According to the scheme, in order to enable the fabric to have excellent and stable tensile performance, on one hand, the conductive wire is fixed between the cloth and the protective layer by hot-pressing the protective layer which comprises but is not limited to a hot melt adhesive film, cloth and a waterproof film, so that the conductive wire has good impact resistance and can be repeatedly washed by a machine without damaging the conductive layer; on the other hand, the conductive wire with the insulating protective sheath improves the protective performance of the fabric wire, so that the fabric wire has fatigue resistance. The two protection modes ensure that the fabric has excellent electric conductivity, tensile capability and fatigue resistance when being thrown away under violent cleaning such as machine washing.
In addition, welding is predominant on commercial scale and is suggested as a feasible method for integrating wearable electronic components, but the fiber developed by the method is difficult to be applied to welding, the invention reserves a certain length of the end of the conductive wire for connecting with electronic components by improving the treatment of design patterns, so that the conductive wire is suitable for the existing welding technology, the connecting end can be Tape-C, micro-USB, multi-PIN empty plug male and female heads, magnetic connecting buckles, various terminals, other wires and the like, and the protection treatment is carried out at the welding position to protect the welding part and prevent fracture, poor contact or short circuit, and the protection treatment comprises but not limited to glue pouring and hot pressing fixing, so that the effective welding and reliable integration can be realized.
In addition, aiming at the problems that the process is complex and the flat cable is not flexible enough in the prior art when the fabric-shaped conductive connecting piece is processed by a combined weaving process, the preparation of intelligent clothes or wearing equipment with different functions is difficult, and the thread diameter and the electric conductivity have great limitations due to the combination of a weaving process. In the existing embroidery process, if the working speed of a main shaft of the machine exceeds 750rpm, the vibration of the embroidery machine is aggravated, the thread breakage rate is rapidly increased, and the conductive fabric is not beneficial to weaving, so the embroidery process is improved. The invention is improved as follows: 1, the working speed of a machine main shaft is changed, so that the rotating speed of the main shaft does not exceed 700rpm, and the wire breakage is effectively prevented; 2, the wire feeding device is adjusted, and the wire feeding speed of the wire feeding device is changed, so that the wire feeding speed is matched with the working rotating speed of the main shaft. And 3, by changing the weaving pattern, the conductive wire is provided with an end with a corresponding length and can be connected with an electronic component, so that effective welding and reliable integration are realized. According to the invention, by improving the implementation mode of the embroidery process, the wire arrangement is flexible, the line trend can be designed according to the functional requirements, the electric conductivity is stable, the wearing comfort is better, and the practicability is better.
According to the scheme, the flexible conductive fabric with the conductive wires capable of being electrified is realized, the conductive wires have certain elastic recovery performance through a preset arrangement mode, and the flexible conductive fabric is more flexibly suitable for wearable equipment. The flexible conductive fabric has stable resistance: the continuous conductive wire is adopted, so that the resistance is stable, and stable data transmission can be realized. The flexible conductive fabric has good insulation performance through the arrangement of the protective layer. The flexible conductive fabric is skin-friendly and non-sensitive: through the process treatment, after the conductive wire is combined with the cloth, the fabric has good skin-friendly performance, is suitable for daily wearing, and further provides support for an intelligent wearable technology.
In conclusion, compared with the prior art, the flexible conductive fabric has the beneficial effects that: the intelligent wearable electric signal transmission device has the advantages of high conductivity, good elasticity, strong comfort, high reliability, stable electric signal and uniform wiring, is combined with stable data transmission, and can be widely applied to the fields of intelligent wearing, medical treatment and health, sports and the like.
Drawings
The invention may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like reference numerals are used throughout the figures to indicate like or similar parts. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate preferred embodiments of the present invention and, together with the detailed description, serve to further explain the principles and advantages of the invention. In the drawings: (for better understanding, FIGS. 1-4 are illustrations of the hot melt adhesive film or elastic cloth or waterproof film without protective layer added)
FIG. 1 is a schematic front view of a flexible conductive fabric according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic cross-sectional view of an embroidery strand of a flexible conductive fabric according to an embodiment of the invention;
FIG. 3 is a schematic front view of an embroidery strand in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of the back of an embroidery strand of an embodiment of the present invention;
fig. 5 is a first schematic view of an application of the flexible conductive fabric according to the embodiment of the invention;
FIG. 6 is a second schematic diagram of an application of the flexible conductive fabric of the embodiment of the invention;
FIG. 7 is a schematic view illustrating an example of a thread arrangement manner of an embroidering process according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a coaxial line structure with data transmission function according to an embodiment of the present invention;
FIG. 9 is a schematic wiring diagram of a flexible conductive fabric of an embodiment of the present invention;
FIG. 10 is a third schematic view of the flat cable application of the flexible conductive fabric according to the embodiment of the present invention;
illustration of the drawings: 1-embroidery ply yarn; 2- -elastic cloth; 3- -protective layer; 4- -end head; 5- -hot pressing cloth; 6- -connection and insulation treatment position; 7- -insulation infiltration position; 101-facial line; 102- -a conductive line; 103-bottom line; 1021 — a copper core wire; 1022- -shielded wire; 104- -a shielding layer.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that the figures and description omit representation and description of components and processes that are not relevant to the present invention and that are known to those of ordinary skill in the art for the sake of clarity. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixed or removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides a flexible conductive fabric, including an embroidery strand 1 and an elastic fabric 2, in this embodiment, the embroidery strand 1 is a woven strand, and is formed by mixing a conductive thread and a non-conductive thread, which specifically includes an upper thread 101, a conductive thread 102 and a bottom thread 103, the upper thread 101 and the bottom thread 103 form the non-conductive thread, and the non-conductive thread fixes the conductive thread 102 on the surface of the elastic fabric 2 in a form with a certain bending capability, so that the elastic fabric 2 and the embroidery strand 1 are simultaneously stretched and reset, and the conductive performance remains unchanged. The electric lead extends outwards to a preset length outside the elastic cloth and is electrically connected with a connecting end, and the connecting end is used for connecting an electronic component; and carrying out insulation protection treatment after the conducting wire is connected with the connecting end.
The flexible conductive fabric realized by the invention has good conductive performance, elasticity and stretchability, stable resistance and strong comfort. The flexibility of the conductive wire can be realized, so that the conductive wire has certain elastic recovery performance and is more flexibly suitable for wearable equipment.
Referring to fig. 2 to 4, the embroidery yarn 1 is fixed in a manner that: the upper thread 101 and the lower thread 103 are vertically interwoven to fix the conductive thread 102 on the elastic fabric 2, the conductive thread 102 and the upper thread 101 are arranged on one surface of the elastic fabric 2, and the lower thread 103 is arranged on the other surface of the elastic fabric 2.
The upper thread 101 and the lower thread 103 fix the conductive thread 102 on the elastic fabric 2, and the conductive thread 102 is embroidered on the elastic fabric 2 in a shape with a certain bending capability, so that the conductive thread 102 has a certain elasticity.
As a preferred embodiment, a hot melt adhesive film or an elastic fabric or an elastic waterproof film is hot-pressed on the elastic fabric 2 embroidered with the shape of the embroidery yarn 1 to protect the conductive thread 102. The hot-melt adhesive film, the elastic cloth or the elastic waterproof film is hot-pressed to ensure that the fabric has good insulativity and stretchability.
The elastic fabric 2 is a fabric having a certain elasticity, and the material of the elastic fabric includes, but is not limited to, knitted elastic fabric and woven elastic fabric.
The elastic fabric 2 has a function of giving elasticity to the conductive wire 102, and can elastically restore the conductive wire 102 within a certain range without affecting the conductive function of the conductive wire 102. Generally, the stretchability of the flexible conductive fabric can reach 20% -100% according to practical application.
The specific manufacturing method comprises the following steps: the conductive thread 102 is fed from the rope embroidery device, the upper thread 101 and the bottom thread 103 are interwoven up and down, and the conductive thread 102 is fixed on the elastic cloth 2. Wherein, embroidery patterns are required to be led into a computer in advance, and embroidery is carried out according to the patterns.
In actual manufacturing, different embroidery patterns can be designed according to different electronic elements and functional requirements, and different wires are adopted. According to different connecting elements, the elastic conductive fabric with different lengths, sizes, thicknesses, overcurrent capacities, resistances and shapes can be designed.
Referring to fig. 5, as a specific application example, the flexible conductive fabric may be applied to a heating function, a conductive wire of the flexible conductive fabric extends two wires outwards, the connection mode is 2PIN, one end of the conductive wire is connected to the heating sheet, the other end of the conductive wire is connected to the connector, and the conductive wire is connected to the battery in a plug-in manner. The specific hot-pressing fixing mode is as follows: cutting a piece of cloth with a single-sided hot melt adhesive film, wherein the size of the cloth needs to at least completely cover the connecting position, aligning the side with the hot melt adhesive film to the connecting position, covering a customized die to prevent the joint from being damaged by pressing, and heating and pressurizing to firmly stick the connecting position by using a hot-pressing device so as to achieve the purpose of protecting the connecting position. In particular, the thermocompression fixture includes, but is not limited to, cloth with a hot-melt adhesive film attached thereto, a silicone sheet, a hot-melt adhesive, a plastic sheet.
Fig. 6 is another application example, the flexible conductive fabric realizes the function of light emission, the conductive wire of the flexible conductive fabric extends seven wires outwards, the connection mode is 7PIN, one end of the flexible conductive fabric is connected with the heating piece, the other end of the flexible conductive fabric is connected with the connector in a plugging and pulling mode and is connected with the battery, and similarly, the connection position of the flexible conductive fabric and the heating piece and the connection position of the conductive elastic cloth and the connector are fixed in a hot pressing mode to prevent disconnection, poor contact or short circuit. The fixing manner by hot pressing is the same as that shown in FIG. 5.
In addition, the braided strands are formed on the elastic fabric in a winding displacement manner of an embroidery process, which includes, but is not limited to, various wavy, zigzag, sinusoidal, crescent, semi-circular, irregular, and the like shapes shown in fig. 7. Meanwhile, after the conductive wire is combined with the elastic cloth, the fabric has good skin-friendly performance and is suitable for daily wearing, and support is provided for an intelligent wearable technology through process treatment.
In the present invention, aiming at the problem that the fabric in the prior art can transmit electric signals but cannot transmit data at a longer distance, the conductive wires are mixed with shielding wires, data transmission is realized by inserting the shielding wires, etc., the types of the used conductive wires are changed, different conductive wires are adopted in the same pattern, which breaks through the application limitation on intelligent wearable products, and fig. 8 is a shielding wire with signal shielding and data transmission functions. The shielding wire is a coaxial wire with a single-core structure and consists of an outer envelope, a shielding layer, an insulating layer and a central conductive wire core from outside to inside.
Fig. 9 shows an application example, in which the flexible conductive fabric performs data transmission, four wires are provided, wherein 1021 is a common copper core wire, 1022 is a shielding wire, 104 is a shielding layer, the common copper core wire 1021 is connected to the positive electrode and the negative electrode of a power supply, respectively, two shielding wires 1022 are connected to the positive electrode and the negative electrode of the data wire, respectively, and the shielding layer 104 is grounded (the negative electrode of the power supply). Two ends are connected in a one-to-one correspondence mode, and then the connection position is fixed in a hot-pressing fixing mode, so that stable data transmission is achieved. The specific hot pressing mode is as follows: after the copper core wire 1021 and the shielding wire 1022 are respectively and effectively connected with the connecting terminal 4, insulation treatment is carried out on a connecting position 6 of the lead and the connecting terminal 4, and the insulation treatment is to wrap the lead by a heat shrink tube; infiltrating a connecting position 7 of the lead and the connecting end with hot melt adhesive or insulating glue; preparing a piece of cloth 5 with a single-sided hot melt adhesive film, wherein the cloth 5 at least can completely wrap the connecting position, aligning the side of the cloth 5 with the hot melt adhesive film to the connecting position, sleeving the hot pressing position by using a customized die with a vacant position to avoid crushing the end head 4, completely sleeving the end head 4, heating and pressurizing to completely bond the cloth 5 with the connecting position, and tightly fixing the end head 4 on the elastic cloth 2 to completely protect the connecting position.
Fig. 10 shows an example of a ready-made clothes flat cable, the flexible conductive fabric is another design of pattern arrangement, on the basis of which the power supply and the electronic components can be connected according to the requirement.
In addition, the flexible conductive fabric can be directly made into a product, and the prepared flexible conductive fabric can also be fixed on another product to realize functions and form the product; particularly, according to the needs, a layer of elastic cloth or elastic waterproof membrane can be hot-pressed on the flexible conductive fabric, the effect of strengthening and protecting the conductive wire can be realized, and the attractiveness can be enhanced.
In particular, the above implementation is not limited to the elastic cloth, but the flexible conductive fabric may be implemented on a cloth without elasticity.
The flexible conductive fabric has good stretchability, can realize flexible flat cable, small wire diameter, comfortable fit with human skin and stable signal, can be applied to various electronic products, particularly intelligent clothes and intelligent wearing equipment which have certain requirements on softness, comfort and stretchability, and has wide application direction.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
While the present invention has been disclosed above by the description of specific embodiments thereof, it should be understood that all of the embodiments and examples described above are illustrative and not restrictive. Various modifications, improvements and equivalents of the invention may be devised by those skilled in the art within the spirit and scope of the appended claims. Such modifications, improvements and equivalents are also intended to be included within the scope of the present invention.
Claims (10)
1. A flexible conductive fabric, characterized by: the conductive wire is fixed on the surface of the cloth in a form with certain bending capacity, so that the cloth and the braided strand are stretched and reset at the same time, and the conductive performance is kept unchanged; the conducting wire extends outwards to a preset length outside the cloth and is electrically connected with a connecting end, and the connecting end is used for connecting an electronic component; and carrying out insulation protection treatment after the conductive wire is connected with the connecting end, wherein the connection mode of the conductive wire and the connecting end comprises but is not limited to welding, hot pressing, riveting, crimping, winding and piercing connection.
2. The flexible conductive fabric of claim 1, wherein: including but not limited to knit and woven fabrics.
3. The flexible conductive fabric of claim 1, wherein: the step of conducting insulation protection treatment on the conducting wire and the connecting end head comprises the following steps: process 1: after the conductive wire is effectively connected with the connecting end, insulation treatment is carried out on the connecting position of the conductive wire and the connecting end, wherein the insulation treatment comprises but is not limited to winding by using an insulating adhesive tape, smearing by using an insulating adhesive and wrapping by using a heat-shrinkable tube; and (2) a process: infiltrating a hot melt adhesive or an insulating adhesive into the connecting position of the conductive wire and the connecting end, and preferably wrapping the connecting position to be beyond the connecting position; and 3, process: preparing a piece of cloth with a single-sided hot melt adhesive film, wherein the cloth is at least completely wrapped at the connecting position, aligning the side of the cloth with the hot melt adhesive film to the connecting position, sleeving the hot pressing position by using a customized die with a vacant position to avoid crushing the end head, completely sleeving the end head, heating and pressurizing to completely bond the cloth and the connecting position, and tightly fixing the end head on the cloth to completely protect the connecting position.
4. The flexible conductive fabric of claim 1, wherein: the conductive wire is blended with a shield wire.
5. The flexible conductive fabric of claim 1, wherein: the braided compound yarn comprises a conductive wire, an upper thread and a bottom thread, and the upper thread and the bottom thread are vertically interwoven to fix the conductive wire on the fabric.
6. The flexible conductive fabric of claim 5, wherein: the conducting wire and the upper thread are arranged on one surface of the fabric, and the bottom thread is arranged on the other surface of the fabric.
7. The flexible conductive fabric of any one of claims 1-6, wherein: the outer layer of the flexible conductive fabric is also covered with a protective layer, which includes but is not limited to a hot melt adhesive film, a cloth, and a waterproof film.
8. The flexible conductive fabric of any one of claims 1-6, wherein: the braided strands are processed on the cloth according to a winding displacement mode of an embroidery process, wherein the winding displacement mode comprises but is not limited to wave shape, zigzag shape, Z-shaped shape, sine curve shape, crescent shape, semi-arc shape and irregular shape.
9. The flexible conductive fabric of any one of claims 1-6, wherein: the conductive wire is a wire with a conductive function, and includes, but is not limited to, a metal-based conductive wire, a carbon black-based conductive wire, a metal compound-type conductive wire, a polymer conductive wire, a shielding wire, a signal wire, an enameled wire, an insulated wire, a copper-core cable, an aluminum-core wire, and an aluminum-core cable.
10. The flexible conductive fabric of claim 1, wherein: the diameter range of the conductive wire is 10um-1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277133.3A CN112918026A (en) | 2021-03-15 | 2021-03-15 | Flexible conductive fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277133.3A CN112918026A (en) | 2021-03-15 | 2021-03-15 | Flexible conductive fabric |
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| CN112918026A true CN112918026A (en) | 2021-06-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113892709A (en) * | 2021-09-26 | 2022-01-07 | 嘉兴极展科技有限公司 | Non-inductive attaching type heating module for clothes and manufacturing method thereof |
| WO2024108855A1 (en) * | 2022-11-23 | 2024-05-30 | 张仕华 | Elastic fpc and manufacturing method therefor, and product using elastic fpc |
-
2021
- 2021-03-15 CN CN202110277133.3A patent/CN112918026A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113892709A (en) * | 2021-09-26 | 2022-01-07 | 嘉兴极展科技有限公司 | Non-inductive attaching type heating module for clothes and manufacturing method thereof |
| WO2024108855A1 (en) * | 2022-11-23 | 2024-05-30 | 张仕华 | Elastic fpc and manufacturing method therefor, and product using elastic fpc |
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