阅读说明：本技术 一种多电极电致发热面料及其织造方法 (Multi-electrode electro-heating fabric and weaving method thereof ) 是由 刘迪 房宽峻 伍丽丽 韩鑫鑫 刘玉杰 赵亚茹 孙涵 杨涛 李田田 于 2021-11-01 设计创作，主要内容包括：本发明属于发热面料技术领域,尤其涉及一种多电极电致发热面料及其织造方法。本发明所述多电极电致发热面料包括多道金属电极、发热导线和基础纱线,经机织方法,按照平纹、斜纹、缎纹或复合组织结构织造而成。本发明解决了现有技术中两道电极电致发热面料温度不可调、应用场景单一的问题；本发明提供的一种多电极电致发热面料,通过各金属电极间的电路连接,在电源分别为24V、18V、12V、5V、3.7V电压输出下均可实现40℃～70℃的发热温度,可保证面料电阻值的均匀性和稳定性,进而保证温度的均匀性。(The invention belongs to the technical field of heating fabrics, and particularly relates to a multi-electrode electro-heating fabric and a weaving method thereof. The multi-electrode electric heating fabric comprises a plurality of metal electrodes, heating leads and basic yarns, and is woven according to a plain weave, twill weave, satin weave or composite weave structure by a weaving method. The invention solves the problems of unadjustable temperature and single application scene of the two-electrode electro-heating fabric in the prior art; according to the multi-electrode electro-heating fabric, through circuit connection among the metal electrodes, heating temperatures of 40-70 ℃ can be achieved under the condition that power supplies are respectively 24V, 18V, 12V, 5V and 3.7V in voltage output, uniformity and stability of resistance values of the fabric can be guaranteed, and further uniformity of the temperatures is guaranteed.)

1. A multi-electrode electro-heating fabric is characterized by comprising a plurality of metal electrodes, a heating lead and base yarns which are woven by a weaving method.

2. The multi-electrode electrothermal fabric according to claim 1, wherein the metal electrodes are formed by weaving a plurality of metal yarns as warp yarns which are closely arranged to form one electrode.

3. The multi-electrode electro-heating fabric according to claim 2, wherein the metal yarn is core spun yarn or wrapped yarn, the core layer is chemical fiber filament, the surface layer is metal sheet, and the resistance value is below 60 Ω/km.

4. The multi-electrode electro-heating fabric according to claim 1, wherein the fabric comprises 3-6 metal electrodes, the distance between every two adjacent metal electrodes is 3-5 cm, and the distance between every two adjacent metal electrodes is designed according to a formula:

wherein y is the electrode spacing in m; u is the voltage applied to heat the product, in units of V; delta T is the difference between the ambient temperature and the product temperature, and is expressed in units of; r is the yarn resistance in units of k omega.

5. The multi-electrode electro-heating fabric according to claim 1, wherein the heating wires are woven by taking carbon-based conductive yarns with the resistance range of 15-100 k Ω as weft yarns and arranging the weft yarns with base yarns in proportion.

6. The multi-electrode electro-heating fabric according to claim 5, wherein the base yarns are chemical fiber filaments.

7. A multi-electrode electrothermal fabric according to any one of claims 1 to 6, wherein the fabric is woven in a plain, twill, satin or composite weave structure.

8. The multi-electrode electro-heating fabric as claimed in claim 1, wherein through circuit connection among the metal electrodes, heating temperatures of 40 ℃ to 70 ℃ can be achieved under voltage outputs of 24V, 18V, 12V, 5V and 3.7V of a power supply respectively.

9. The weaving method of the multi-electrode electro-heating fabric is characterized in that a rapier loom is adopted to carry out double-shaft weaving, the upper shaft and the lower shaft respectively control tension and let-off amount, the upper shaft is a metal yarn beam, the lower shaft is a chemical fiber filament beam, and the tension ratio of the upper shaft to the lower shaft is 1: 2-1: 5; in the warping process before weaving, a sectional warping machine is adopted to warp chemical fiber filaments and metal yarns respectively, and a three-ring one-column type tensioner is added for controlling the stable tension of the metal yarns.

10. The weaving method of the multi-electrode electro-heating fabric according to claim 9, wherein the rapier loom can perform irregular double-color weft selection, weft a is set as a conductive yarn, and the setting density is between 40 and 60; setting the weft b as chemical fiber filament with density of 45-75.

Technical Field

The invention belongs to the technical field of heating fabrics, and particularly relates to a multi-electrode electro-heating fabric and a weaving method thereof.

Background

The electro-heating fabric is a fabric capable of quickly heating in a specified voltage power supply state, is formed by mixing, interweaving and weaving electrode yarns and heating yarns, is manufactured into a complete heating sheet through cutting and circuit connection, and is widely applied to the fields of intelligent clothes, heatable protective equipment, intelligent home, intelligent accessories and the like due to the characteristics of uniform heating, convenience and portability.

The conventional electric heating fabric is mostly provided with two electrodes, the heating principle is considered, four indexes of yarn resistance, electrode spacing, applied voltage and heating temperature are associated with each other, the heating temperature and the electrode spacing correspond to each other one by one under the condition of specifying the yarn resistance and applying the voltage, and the electrode spacing is determined to be unchangeable in the weaving process of the fabric, so that the heating temperature of a heating sheet made of the fabric is not adjustable, and the electric heating fabric has unicity and limits the application of the electric heating fabric.

Therefore, how to weave the temperature-adjustable electric heating fabric becomes a technical problem to be solved by the technical field.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a multi-electrode electro-heating fabric, which solves the problems that the temperature of two-electrode electro-heating fabric is not adjustable and the application scene is single in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

one purpose of the invention is to disclose a multi-electrode electro-heating fabric which is woven by a weaving method, and the fabric comprises a plurality of metal electrodes, heating leads and basic yarns.

Preferably, the multi-electrode electro-heating fabric adopts a basic fabric weave structure such as a plain weave, twill, satin weave or composite weave structure.

Preferably, the metal electrode is formed by weaving 12-30 metal yarns which are used as warp yarns and are closely arranged.

Preferably, the multi-electrode electro-heating fabric comprises 3-6 electrodes, the electrode distance is 3-5 cm, and the design of the adjacent electrode distance follows the formula:

wherein y is the electrode spacing in m; u is the voltage applied to heat the product, in units of V; delta T is the difference between the ambient temperature and the product temperature, and is expressed in units of; r is the yarn resistance in units of k omega.

Preferably, the metal yarn is core-spun yarn or fasciated yarn, the core layer is chemical fiber filament, the surface layer is metal sheet, and the resistance value is below 60 omega/km.

Preferably, the heating wire is formed by weaving carbon-based conductive yarns with the resistance range of 15-100 k omega as weft yarns and arranging the weft yarns and the base yarns in a certain proportion.

Preferably, after the fabric is discharged, the heating temperature of 40-70 ℃ can be realized under the voltage outputs of 24V, 18V, 12V, 5V and 3.7V of the power supply respectively through the circuit connection among the electrodes.

Preferably, the base yarn is a chemical fiber filament.

The invention also discloses a weaving method of the multi-electrode electro-heating fabric, which adopts a GA731-11 rapier loom for weaving, and adopts a sectional warping machine for warping.

The warp tension control of the rapier loom adopts double-shaft configuration, an upper shaft is a metal yarn beam, and a lower shaft is a chemical fiber filament beam. The tension ratio of the upper shaft to the lower shaft is between 1: 2-1: 5, and can be properly adjusted according to yarn parameters and yarn basis. The upper shaft and the lower shaft respectively control the tension and the let-off quantity, so that the uniformity and the stability of the resistance value of the fabric are ensured.

The rapier loom can perform irregular double-color weft selection, weft a is set as conductive yarn, and the setting density is 40-60; setting the weft b as chemical fiber filament with the density of 45-75; and the weft yarns a and b are reasonably matched to realize the uniform distribution of the heating area and the non-heating area.

The sectional warping machine is additionally provided with a three-ring one-column type tensioner on the basis of a conventional warping machine and is used for warping metal yarns.

Advantageous effects

The invention discloses a multi-electrode electro-heating fabric which comprises a plurality of metal electrodes, heating leads and basic yarns, and is woven by a weaving method according to a plain weave, twill, satin or composite weave structure; according to the multi-electrode electro-heating fabric, through circuit connection among the metal electrodes, heating temperatures of 40-70 ℃ can be achieved under the condition that power supplies are respectively 24V, 18V, 12V, 5V and 3.7V in voltage output, uniformity and stability of resistance values of the fabric can be guaranteed, and further uniformity of the temperatures is guaranteed.

Drawings

Fig. 1 is a schematic front structure view of the multi-electrode electro-heating fabric of the present invention;

FIG. 2 is a schematic structural view of the metal yarn of the present invention;

fig. 3 is a schematic diagram illustrating an example of a circuit connection manner of the multi-electrode electro-heating fabric;

in the figure: 1-6 are metal wire electrodes, 7 are heating leads, 8 are basic yarns, 9 are copper sheets on the surface layers of the metal yarns, and 10-15 are electrode terminals.

Detailed Description

Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.

The following examples are given by way of illustration of embodiments of the invention and are not to be construed as limiting the invention, and it will be understood by those skilled in the art that modifications may be made without departing from the spirit and scope of the invention. Unless otherwise specified, reagents and equipment used in the following examples are commercially available products.

Example 1

As shown in fig. 1-3, the multi-electrode electro-heating fabric comprises six metal wire electrodes 1-6, a heating wire 7 and a base yarn 8.

As shown in fig. 1, the multi-electrode electro-heating fabric includes six electrodes, each electrode is formed by tightly arranging 18 metal yarns as warp yarns, and the distance between adjacent electrodes is 3 cm. As shown in FIG. 2, the metal electrode yarn is a copper core-spun yarn, and the resistance value is less than or equal to 60 omega/km.

Referring to fig. 1, the nano carbon conductive yarn with the heating wire resistance value of 40 ± 3 Ω/m is woven with the base yarn in a 1:1 ratio, and the base yarn is polyester filament.

Referring to fig. 1, the weave structure of the fabric is 3/1 twill weave.

Referring to fig. 3, the temperature rise of 50-55 ℃ can be realized at 3.7V and 60-65 ℃ can be realized at 5V by connecting the electrode terminal 10 with the positive electrode of the power supply and the electrode terminal 11 with the negative electrode of the power supply.

Referring to fig. 3, the electrode terminal 10 is connected to the positive electrode of the power supply, and the electrode terminal 12 is connected to the negative electrode of the power supply, so that the temperature rise of 45 to 50 ℃ can be realized at a voltage of 5V; the temperature rise of 50-55 ℃ is realized under the voltage of 7.4V.

Referring to fig. 3, when the electrode terminal 10 is connected to the positive electrode of the power supply and the electrode terminal 13 is connected to the negative electrode of the power supply, the temperature rise of 45-50 ℃ can be realized at 12V and 65-70 ℃ can be realized at 18V.

Referring to fig. 3, the temperature rise of 50-55 ℃ can be realized at 18V by connecting the electrode terminal 10 with the positive electrode of the power supply and the electrode terminal 14 with the negative electrode of the power supply.

Referring to fig. 3, the temperature rise of 50-55 ℃ can be realized at 24V by connecting the electrode terminal 10 with the positive electrode of the power supply and the electrode terminal 15 with the negative electrode of the power supply.

Example 2

The weaving method of the multi-electrode electro-heating fabric adopts a GA731-11 type rapier loom for weaving, and a sectional warping machine for warping.

The warp tension control of the rapier loom adopts double-shaft configuration, an upper shaft is a metal yarn beam, and a lower shaft is a chemical fiber filament beam. The tension ratio of the upper shaft to the lower shaft is between 1: 2-1: 5, and can be properly adjusted according to yarn parameters and yarn basis. The upper shaft and the lower shaft respectively control the tension and the let-off quantity, so that the uniformity and the stability of the resistance value of the fabric are ensured.

The rapier loom can perform irregular double-color weft selection, weft a is set as conductive yarn, and the setting density is 40-60; setting the weft b as chemical fiber filament with the density of 45-75; and the weft yarns a and b are reasonably matched to realize the uniform distribution of the heating area and the non-heating area.

The sectional warping machine is additionally provided with a three-ring one-column type tensioner on the basis of a conventional warping machine and is used for warping metal yarns.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.