WO2017120982A1 - Electrothermal component and heat generating method thereof - Google Patents

Electrothermal component and heat generating method thereof Download PDF

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Publication number
WO2017120982A1
WO2017120982A1 PCT/CN2016/071329 CN2016071329W WO2017120982A1 WO 2017120982 A1 WO2017120982 A1 WO 2017120982A1 CN 2016071329 W CN2016071329 W CN 2016071329W WO 2017120982 A1 WO2017120982 A1 WO 2017120982A1
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WO
WIPO (PCT)
Prior art keywords
fabric
electric heating
electrothermal
yarn
heating member
Prior art date
Application number
PCT/CN2016/071329
Other languages
French (fr)
Chinese (zh)
Inventor
胡金莲
梁锦伦
张俊
Original Assignee
香港纺织及成衣研发中心有限公司
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Application filed by 香港纺织及成衣研发中心有限公司 filed Critical 香港纺织及成衣研发中心有限公司
Publication of WO2017120982A1 publication Critical patent/WO2017120982A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible

Definitions

  • the invention relates to an electric heating element and a heating method thereof
  • the present invention relates to an electric heating member and a heat generating method thereof.
  • U.S. Patent No. 5,484,983 discloses an electrothermal fabric having a substantially network structure.
  • electrothermal fabrics are used to produce non-planar fabric laminates or textile composites.
  • a pair of electrodes are respectively disposed on both sides of the electrically conductive electrothermal fabric to supply current to the electrothermal fabric.
  • the electrically conductive electrothermal fabric can generate heat under the action of electric current.
  • electrically conductive electric heating fabrics can generate heat in many fields, such as in the field of wearable heat-generating equipment, medical fields, home and outdoor fields.
  • Such a wide range of applications is determined by the special properties of such electrothermal fabrics, including the nature of the yarn itself used in the material and the nature of the fabric.
  • the properties of the yarn are mainly the electrical resistivity, stiffness and fineness of the yarn; the properties of the fabric include weaving methods (such as knitting, weaving and weaving), fabric density and fabric structure.
  • the electrothermal fabric uses a thin copper wire as a conductive wire. This solution makes the electrothermal fabric defective in ductility and cannot accommodate the uneven curved support. If the support is in a bent state, the impedance characteristics of the electrothermal fabric are destroyed.
  • German Patent DE 42 33 118 A1 proposes an electrothermal braid comprising a conductive flexible carbon-based electrical resistance wire. The electric resistance of such an electrothermal braid is too large.
  • 4,938,814 discloses a flexible fiber heating fabric; the yarn of the fabric comprises a fiber core coated with one or more conductive layers.
  • irregularities such as yarn diameter and resistance value may affect the heat generation performance of the fabric.
  • U.S. Patent No. 5,861,610 discloses a heating wire comprising two conductors, each of which is wrapped by an insulating material and separated by such an insulating material. This double insulation scheme makes the heating wire very thick, hard and heavy, which affects the user's comfort.
  • U.S. Patent No. 6,548,789 discloses a fabric having a heating function in which metal wires are directly woven together with the garment.
  • U.S. Patent No. 7,173,223 B2 proposes a two-dimensional flexible electric heating device which is a heating device of a textile material which is woven by a common textile yarn and a metal yarn. In practical applications, the ratio between the metal yarn and the ordinary yarn and the distance between the adjacent two metal yarns determine the magnitude of the fabric impedance. The fabric type electric heating device cannot be uniformly heated in the cross section of the fabric thickness direction (also referred to as the three-dimensional direction of the fabric).
  • 4,938,814 discloses a flexible fiber heating fabric which is woven from yarns comprising a fiber core and a conductive polyurethane resin coated on the fiber core. In such fabrics, parameters such as yarn diameter, or electrical resistance may be irregular. In addition, the fabric uses solvents, cyanic acid and other toxic substances that are released at high temperatures.
  • U.S. Patent No. 7,268,320 B2 discloses an electrothermal composite fabric having at least one layer of fabric and an electric heating member. The heating elements are only used in composite fabrics. The composite fabric also includes a protective layer and a vapor permeable layer to protect the circuit or resist physical stress. This composite fabric allows for better electrothermal performance. However, using such a fabric alone can be risky.
  • the present invention is directed to the problem that a conventional electrothermal fabric cannot obtain a uniform temperature when it is energized, and an electric heating member and a heat generating method thereof are proposed.
  • the present invention provides an electric heating member including an electric heating fabric including an electrothermal yarn unit; the electrothermal yarn unit includes a conductive yarn and a resistance yarn; and the conductive yarn and the electric resistance yarn are juxtaposed to each other Together
  • the electric heating member further includes a pair of electrodes interposed between the front and the back of the electric heating fabric for supplying a voltage between the front and the back of the electric heating fabric.
  • the conductive yarn is a silver coated conductive yarn.
  • the silver-coated conductive yarn includes an insulating core wire as a base, and the insulating core wire is coated with silver.
  • the insulating core wire is a nylon multifilament, a PET fiber core or an aramid fiber.
  • the ratio of the conductive yarn to the electric resistance yarn is 1: 2, 2:1 or 1:1.
  • the density of the electric heating fabric is 220 rpm / 260 lap / square inch.
  • the electrothermal fabric has a 1 ⁇ 1 rib structure, a full Milano structure, a semi-Milano structure, a cardigan structure or an Azolla structure.
  • the electrodes are pure silver wires; and the two pure silver wires are respectively sewn on the front and back surfaces of the electric heating fabric.
  • the present invention also provides a method for heating a heating element, comprising the following steps:
  • Step S1 providing the electric heating member as described above;
  • Step S2 supplying a DC voltage of 36 V or less between the front and the back of the electric heating fabric to heat the electric heating fabric.
  • the electric heating member of the present invention has an electrothermal fabric woven from a conductive yarn and a resistance yarn, and the entire conductive fabric is passed through a current by supplying a voltage across the pure silver conductive wire interspersed in the fabric, and is loose due to The fabric structure and the smaller fabric density result in uniform heating of the electric heating member of the present invention.
  • the electric heating member of the invention has uniform heat generation and can be applied to a plurality of application fields such as an orthosis.
  • FIG. 1 shows a coil diagram of a first embodiment of an electrothermal fabric of the present invention
  • FIG. 2 is a schematic view of a second embodiment of an electrothermal fabric of the present invention.
  • FIG. 3 is a cross-sectional view of an electric heating yarn unit according to an embodiment of the present invention.
  • FIG. 4 is a schematic view showing a temperature test position of an electric heating member according to an embodiment of the present invention.
  • FIG. 5 is a diagram showing temperature measurement results of a test 1 of an electric heating member at a voltage of 15 V according to an embodiment of the present invention
  • FIG. 6 is a graph showing temperature measurement results of the test 2 of the electric heating member at a voltage of 20 V according to an embodiment of the present invention.
  • invention embodiment
  • the present invention is directed to the problem that the existing electrothermal fabric cannot obtain a uniform temperature when it is energized, and an electric heating member is proposed, which can realize uniform electrothermal performance in a plane or three-dimensional direction; the electric heating of the present invention Lightweight, soft, and evenly heated, it avoids the problem of local overheating that limits the range of applications in existing fabrics.
  • the electric heating element comprises an electrothermal fabric comprising a conductive yarn, the conductive yarn can conduct a low voltage current; in addition, the electrothermal fabric further comprises a resistance yarn, which is used to block the passage of current to generate heat energy and has a certain The insulation effect.
  • the electrothermal fabric may be a woven composite or a layered fabric and woven from conductive yarns and electric resistance yarns. At a certain DC voltage, a uniform temperature can be distributed on the electrothermal fabric.
  • FIG. 1 shows a coil diagram of a first embodiment of an electrothermal fabric of the present invention
  • FIG. 2 is a schematic view of a second embodiment of the electrothermal fabric of the present invention.
  • Fig. 1 shows the full Milano structure
  • Fig. 2 shows the transfer structure.
  • the front and back surfaces of the electrothermal fabric have the same structure.
  • the electrothermal fabric comprises an electrothermal yarn unit; the electrothermal yarn unit comprises a conductive yarn and a resistance yarn; the electrically conductive yarn and the electric resistance yarn are connected side by side; as shown in Fig. 3.
  • two adjacent electrothermal yarn units of the electrothermal fabric have fixed attachment nodes that are fixed and held at a distance.
  • Figure 2 also uses arrows to indicate the heat transfer process. Heat is transferred between the front and back sides of the electrothermal fabric and the cross-section. The heat encounters the loop and passes through, and the heated yarn unit returns.
  • the resistance yarn acts as a heat holding function that blocks the current and generates heat and prevents heat from being emitted.
  • the conductive yarn is a metal conductive yarn.
  • the conductive yarn not only has an appropriate electrical resistance, but also has a certain mechanical property.
  • the electrically conductive yarn is a silver coated electrically conductive yarn comprising an insulating core as a substrate coated with silver.
  • the insulating core is a nylon multifilament, a PET filament, a PET fiber core, an aramid fiber or other rayon.
  • the equivalent diameter of the conductive yarn is 70d-300d.
  • the choice of conductive yarns can be determined according to market needs and specific applications. In fact, most conductive yarns are silver coated conductive yarns.
  • the resistance yarn since the nylon/cotton blended yarn has good thermal insulation properties, therefore, in the present invention Medium, the resistance yarn is made of nylon/cotton blended yarn.
  • the electrothermal yarn unit formed by connecting the conductive yarn and the electric resistance yarn is one of the keys to overcome the local heat generation of the existing electrothermal fabric. Because the conductive yarn and the non-conductive yarn are mixed into the material, the overall resistance can be increased, and the heat of heat can be reduced and balanced to avoid local overheating.
  • the percentage of the resistive yarn is determined by the impedance required for the electrothermal fabric.
  • the ratio of the number of conductive yarns to the resistance yarns is preferably 1 : 2, 2 : 1 or 1 : 1.
  • the electrothermal fabric is made by a weft knitting process. Compared to other weaving processes, the knit structure woven by the weft knitting process can have better dimensional stability and can avoid displacement and misalignment of the fabric during application.
  • the electrothermal fabric can have the advantages of light weight and high flexibility. More specifically, the weft knitting process has a uniform structure on the front and back sides of the electric heating fabric, and these structures may be 1 X 1 rib, full Milano, semi-Milano or cardigan.
  • the density of the electrothermal fabric can be lower, and the density can be 220 laps / square inch - 260 laps / square inch.
  • the manufacturing process of the electric heating fabric can be completed by a computerized flat knitting machine.
  • the electrothermal fabric heat is generated between the coils, so that the temperature distribution inside and on the front and back sides of the electric heating fabric is uniform.
  • the electrothermal fabric energized for a certain period of time can reach the predetermined temperature and can withstand the specified temperature.
  • the electric heating member of the present invention further includes a pair of electrodes interposed between the front and the back of the electric heating fabric for supplying a direct current voltage between the front and back surfaces of the electric heating fabric.
  • a metal power line is used as the electrode.
  • Two metal power cords are evenly inserted through the front and back of the electric heating fabric.
  • Sterling silver wire can be considered as a metal power cord because it has a similar electrical resistivity to the fabric conductive yarn.
  • the DC voltage applied between the pair of electrodes is controlled below 36 V, so that the current through the electric heating fabric can be controlled within a certain range to avoid serious accidents caused by short circuits and local overheating.
  • the electric heating element can be applied to a Smart Compression Bandage System for triggering a shape memory function.
  • An intelligent compression bandage system can be made by a combination of shape memory filaments and elastane filaments.
  • the compression bandage is uniformly heated by sandwiching the heating element in the intelligent compression bandage system, and the temperature of the intelligent compression bandage system can be well controlled.
  • the heat generation efficiency of the electrothermal fabric can be controlled.
  • This internal heating method helps to promote the heating of the electric heating fabric, eliminates the external heat and stimulates the safety problem.
  • the spacing between the electrothermal yarn units of the electrothermal fabric and the knitting method of the electrothermal fabric can realize the design of the calorific value of the electric heating member.
  • the electrothermal fabric may also be combined in a textile composite or a layered fabric.
  • the electric heating yarn unit may also have a heat generating function if a certain electric heating yarn unit in the electric heating fabric is broken.
  • the efficient heating of the electrothermal fabric reduces heat loss.
  • the electric heating member of the present invention can also be used in an orthosis which is a shape memory textile composite in which temperature is triggered by temperature.
  • the heating element can be used as a heat source to act as an actuator for the orthosis.
  • the combination of the heating elements in the orthosis is relatively simple and convenient, which helps to change the shape of the orthosis depending on the patient's condition. Since the structure of the electric heating member is the main body and the shape memory polymer is a thermoplastic material, the temperature can be maintained between 55 ° C and 60 ° C for a long time during the angle correction of the orthosis.
  • the present invention proposes a preferred embodiment of an electric heating member.
  • the electric heating member comprises an electrothermal fabric comprising an electrothermal yarn unit; the electrothermal yarn unit comprising a conductive yarn and a resistance yarn
  • the conductive yarn and the resistance yarn are connected side by side;
  • the conductive yarn is a silver coated conductive yarn
  • the electric resistance yarn is a nylon/cotton blended yarn
  • the ratio of the conductive yarn to the electric resistance yarn is 1:1.
  • the fineness of the conductive yarn is 60d
  • the fineness of the nylon/cotton blended yarn is 32s/2.
  • the electric heating member further includes a pair of electrodes respectively disposed on the front and back surfaces of the electric heating fabric for supplying a direct current voltage between the front and the back of the electric heating fabric.
  • the pair of electrodes are all pure silver wires.
  • the electric heating member is formed into a sock-shaped orthosis as shown in FIG.
  • Test 1
  • a voltage of 15 V is supplied between a pair of electrodes of the electric heating member, and a start time is recorded; and after 180 s from the start time, position 1, position 2, position 3, and position 4 as shown in FIG. 4 are measured. temperature.
  • the temperature measurement result is shown in FIG. 6, the temperature at the position 1 is 36 ° C, the temperature at the position 2 is 34 ° C, the temperature at the position 3 is 33 ° C, and the temperature at the position 4 is 30. °C.
  • the electric heating member of the present invention has an electrothermal fabric woven from a conductive yarn and a resistance yarn, and a uniform temperature distribution is produced by supplying a voltage to the front and back surfaces of the electric heating fabric.
  • the electric heating member of the present invention generates heat uniformly, and can be applied to a plurality of application fields such as an orthosis.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Surface Heating Bodies (AREA)
  • Woven Fabrics (AREA)

Abstract

Provided in the present invention are an electrothermal component and a heat generating method thereof; the electrothermal component comprises an electrothermal fabric, said electrothermal fabric comprising an electrothermal yarn unit; the electrothermal yarn unit comprises an electrically conductive yarn and an electrically resistant yarn; the electrically conductive yarn and the electrically resistant yarn are connected together in parallel; and the electrothermal component also comprises a pair of electrodes respectively penetrating the front and the rear of the electrothermal fabric and used for providing a voltage between the front and the rear of the electrothermal fabric. The electrothermal component of the present invention is provided with an electrothermal fabric woven from an electrically conductive yarn and an electrically resistant yarn; providing a voltage between the front and the rear of the electrothermal fabric causes the electrothermal fabric to produce a uniform temperature distribution. The electrothermal component of the present invention generates heat uniformly, and can be used in multiple fields of application such as orthotic devices.

Description

说明书 发明名称： 一种电热件及其发热方法 技术领域  Description: The invention relates to an electric heating element and a heating method thereof
[0001] 本发明涉及一种电热件及其发热方法。  [0001] The present invention relates to an electric heating member and a heat generating method thereof.
背景技术  Background technique
[0002] 随着柔性加热技术的发展， 提高电热织物加热能力并提高加热稳定性的各种电 热织物被研发出来。  [0002] With the development of flexible heating technology, various electric heating fabrics for improving the heating ability of electric heating fabrics and improving heating stability have been developed.
[0003] 美国专利 US5484983提出了一种具有基本网状结构的电热织物。 其中， 这种电 热织物用于生产非平面织物层压材料或纺织复合材料。 一对电极分别设置在导 电的电热织物两侧， 以给电热织物提供电流。 这样， 导电的电热织物可以在电 流的作用下发热。 目前， 这种导电的电热织物可在诸多领域起到发热功效， 例 如在可穿戴发热设备领域、 医疗领域、 家用和户外领域等。 如此广阔的应用范 围是由这种电热织物的特殊性质决定， 这些性质包括材料中所使用的纱线本身 的性质和织物的性质两方面。 纱线的性质主要有纱线的电阻率、 刚度和细度； 织物的性质包括织造方法 （例如针织、 机织和编织） 、 织物密度和织物结构。 进一步地， 在该专利中， 电热织物采用细铜线作为导电线。 这种方案使得电热 织物在可延展性能方面存在缺陷， 无法适应凹凸不平的弯曲支撑物。 如果支撑 物处于弯曲状态， 电热织物的阻抗特性会被破坏。 德国专利 DE4233118 A1提出 了一种电热编织物， 包括导电柔性碳基电阻线。 这种电热编织物的导电电阻太 大。 美国专利 US4983814提出了一种柔性纤维加热织物； 该织物的纱线包括纤维 芯， 该纤维芯上涂覆有一层或多层导电层。 然而， 纱线直径、 电阻值等参数的 不规律会影响织物的发热性能， 具体来说， 在织物的正面和背面不同的情况下 ， 局部过热会造成加热效果不均匀的现象。 美国专利 US5861610提出了一种电热 线， 这种电热线包括两个导体， 该两个导体分别被一绝缘材料包裹， 并被这种 绝缘材料隔开。 这种双绝缘方案使得电热线非常粗、 硬且重， 这会影响用户的 舒适度。 美国专利 US6548789提出了一种具有加热功能的织物， 其中， 金属线直 接和服装编织在一起。 由金属线形成导电通路， 引起电流通过并在金属线所覆 盖的范围内产生热能。 然而， 这种织物的加热方式并不是对平面进行加热， 更 确切地说， 这种织物所发出的热可能只在一个方向上传播。 进一步地， 美国专 利 US7173223B2提出了一种二维柔性电热装置， 其为纺织材料类的加热器件， 该 加热器件是由普通纺织用纱和金属纱共同织造而成。 在实际应用中， 金属纱和 普通纱之间的比例以及相邻两金属纱之间的距离决定织物阻抗的大小。 该织物 型电热装置在织物厚度方向的横截面 （也可以称织物三维方向上） 无法均匀加 热。 美国专利 US4983814提出了一种柔性纤维加热织物， 该柔性纤维加热织物由 纱线织成， 纱线包括纤维芯， 以及涂覆在纤维芯上的导电聚氨酯树脂。 在这种 织物中， 纱线直径、 或电阻等参数可能不规律。 此外， 这种织物采用了溶剂、 氰酸和其他有毒物质， 这些物质会在高温下释放。 美国专利 US7268320B2公开了 一种电热复合织物， 具有至少一层织物层和电热件。 电热件仅用于复合织物中 。 这种复合织物还包括保护层和蒸气透水层， 以保护电路或抵抗物理压力。 这 种复合织物可实现更好的电热性能。 然而， 单独使用这种织物会具有风险。 由 于编织过程的原因， 持续的摩擦和相邻纱线之间交错会发生， 导电纱线的纤维 会发生磨损； 这个过程会使导电纱形成的结构变得松散， 从先前的结构滑移引 起织物的短路。 此外， 当导电纱与其它导电金属纱接触时， 也有可能造成短路 技术问题 [0003] U.S. Patent No. 5,484,983 discloses an electrothermal fabric having a substantially network structure. Among them, such electrothermal fabrics are used to produce non-planar fabric laminates or textile composites. A pair of electrodes are respectively disposed on both sides of the electrically conductive electrothermal fabric to supply current to the electrothermal fabric. Thus, the electrically conductive electrothermal fabric can generate heat under the action of electric current. At present, such electrically conductive electric heating fabrics can generate heat in many fields, such as in the field of wearable heat-generating equipment, medical fields, home and outdoor fields. Such a wide range of applications is determined by the special properties of such electrothermal fabrics, including the nature of the yarn itself used in the material and the nature of the fabric. The properties of the yarn are mainly the electrical resistivity, stiffness and fineness of the yarn; the properties of the fabric include weaving methods (such as knitting, weaving and weaving), fabric density and fabric structure. Further, in this patent, the electrothermal fabric uses a thin copper wire as a conductive wire. This solution makes the electrothermal fabric defective in ductility and cannot accommodate the uneven curved support. If the support is in a bent state, the impedance characteristics of the electrothermal fabric are destroyed. German Patent DE 42 33 118 A1 proposes an electrothermal braid comprising a conductive flexible carbon-based electrical resistance wire. The electric resistance of such an electrothermal braid is too large. U.S. Patent No. 4,938,814 discloses a flexible fiber heating fabric; the yarn of the fabric comprises a fiber core coated with one or more conductive layers. However, irregularities such as yarn diameter and resistance value may affect the heat generation performance of the fabric. Specifically, in the case where the front and back sides of the fabric are different, local overheating may cause uneven heating effect. U.S. Patent No. 5,861,610 discloses a heating wire comprising two conductors, each of which is wrapped by an insulating material and separated by such an insulating material. This double insulation scheme makes the heating wire very thick, hard and heavy, which affects the user's comfort. U.S. Patent No. 6,548,789 discloses a fabric having a heating function in which metal wires are directly woven together with the garment. A conductive path is formed by the metal line, causing current to pass through and overlying the metal line Thermal energy is generated within the cover. However, the heating of such fabrics does not heat the plane. More specifically, the heat generated by such fabrics may only propagate in one direction. Further, U.S. Patent No. 7,173,223 B2 proposes a two-dimensional flexible electric heating device which is a heating device of a textile material which is woven by a common textile yarn and a metal yarn. In practical applications, the ratio between the metal yarn and the ordinary yarn and the distance between the adjacent two metal yarns determine the magnitude of the fabric impedance. The fabric type electric heating device cannot be uniformly heated in the cross section of the fabric thickness direction (also referred to as the three-dimensional direction of the fabric). U.S. Patent No. 4,938,814 discloses a flexible fiber heating fabric which is woven from yarns comprising a fiber core and a conductive polyurethane resin coated on the fiber core. In such fabrics, parameters such as yarn diameter, or electrical resistance may be irregular. In addition, the fabric uses solvents, cyanic acid and other toxic substances that are released at high temperatures. U.S. Patent No. 7,268,320 B2 discloses an electrothermal composite fabric having at least one layer of fabric and an electric heating member. The heating elements are only used in composite fabrics. The composite fabric also includes a protective layer and a vapor permeable layer to protect the circuit or resist physical stress. This composite fabric allows for better electrothermal performance. However, using such a fabric alone can be risky. Due to the weaving process, continuous friction and staggering between adjacent yarns occur, and the fibers of the conductive yarn wear; this process causes the structure formed by the conductive yarn to become loose, causing the fabric to slip from the previous structure. Short circuit. In addition, when the conductive yarn is in contact with other conductive metal yarns, it may also cause short circuit problems.
[0004] 本发明针对现有电热织物在被通电时， 无法获得均匀的温度的问题， 提出了一 种电热件及其发热方法。  [0004] The present invention is directed to the problem that a conventional electrothermal fabric cannot obtain a uniform temperature when it is energized, and an electric heating member and a heat generating method thereof are proposed.
问题的解决方案  Problem solution
技术解决方案  Technical solution
[0005] 本发明提出了一种电热件， 包括电热织物， 该电热织物包括电热纱线单元； 该 电热纱线单元包括导电纱线和电阻纱线； 导电纱线和电阻纱线并列地连接在一 起；  [0005] The present invention provides an electric heating member including an electric heating fabric including an electrothermal yarn unit; the electrothermal yarn unit includes a conductive yarn and a resistance yarn; and the conductive yarn and the electric resistance yarn are juxtaposed to each other Together
[0006] 电热件还包括分别穿插在电热织物正面和背面、 用于给电热织物正面和背面之 间提供电压的一对电极。  The electric heating member further includes a pair of electrodes interposed between the front and the back of the electric heating fabric for supplying a voltage between the front and the back of the electric heating fabric.
[0007] 本发明上述的电热件中， 导电纱线为银涂层导电纱线。 [0008] 本发明上述的电热件中， 银涂层导电纱线包括作为基底的绝缘芯线， 该绝缘芯 线上涂覆有银。 In the above electric heating member of the present invention, the conductive yarn is a silver coated conductive yarn. In the above electric heating member of the present invention, the silver-coated conductive yarn includes an insulating core wire as a base, and the insulating core wire is coated with silver.
[0009] 本发明上述的电热件中， 绝缘芯线为锦纶复丝、 PET纤维芯或芳纶纤维。  [0009] In the above electric heating member of the present invention, the insulating core wire is a nylon multifilament, a PET fiber core or an aramid fiber.
[0010] 本发明上述的电热件中， 导电纱线和电阻纱线的数量比为 1 : 2、 2 : 1或 1 : 1。 [0010] In the above electric heating member of the present invention, the ratio of the conductive yarn to the electric resistance yarn is 1: 2, 2:1 or 1:1.
[0011] 本发明上述的电热件中， 电热织物的两个相邻电热纱线单元具有固定连接节点[0011] In the above electric heating member of the present invention, two adjacent electrothermal yarn units of the electrothermal fabric have fixed connection nodes
； 电热织物的密度为 220圈 /平方英寸 -260圈 /平方英寸。 The density of the electric heating fabric is 220 rpm / 260 lap / square inch.
[0012] 本发明上述的电热件中， 电热织物具有 1 X 1罗纹结构、 全米兰诺结构、 半米兰 诺结构、 开襟衫结构或阿兰花结构。 [0012] In the above electric heating member of the present invention, the electrothermal fabric has a 1×1 rib structure, a full Milano structure, a semi-Milano structure, a cardigan structure or an Azolla structure.
[0013] 本发明上述的电热件中， 电极为纯银线； 两条纯银线分别被缝在电热织物正面 和背面上。 [0013] In the above electric heating member of the present invention, the electrodes are pure silver wires; and the two pure silver wires are respectively sewn on the front and back surfaces of the electric heating fabric.
[0014] 本发明还提出了一种电热件的发热方法， 包括以下步骤：  [0014] The present invention also provides a method for heating a heating element, comprising the following steps:
[0015] 步骤 Sl、 提供如上所述的电热件； [0015] Step S1, providing the electric heating member as described above;
[0016] 步骤 S2、 给电热织物正面和背面之间提供 36V以下的直流电压， 以使电热织物 发热。  [0016] Step S2: supplying a DC voltage of 36 V or less between the front and the back of the electric heating fabric to heat the electric heating fabric.
发明的有益效果  Advantageous effects of the invention
有益效果  Beneficial effect
[0017] 本发明的电热件具有由导电纱线和电阻纱线编织成的电热织物， 通过给穿插在 织物中的纯银导电丝两端提供电压使整块导电织物通过电流， 并且由于松散的 织物结构和较小的织物密度使本发明的电热件发热均匀。 本发明的电热件发热 均匀， 可应用于矫形器等多个应用领域中。  [0017] The electric heating member of the present invention has an electrothermal fabric woven from a conductive yarn and a resistance yarn, and the entire conductive fabric is passed through a current by supplying a voltage across the pure silver conductive wire interspersed in the fabric, and is loose due to The fabric structure and the smaller fabric density result in uniform heating of the electric heating member of the present invention. The electric heating member of the invention has uniform heat generation and can be applied to a plurality of application fields such as an orthosis.
对附图的简要说明  Brief description of the drawing
附图说明  DRAWINGS
[0018] 图 1示出了本发明电热织物的第一实施例的线圈图；  1 shows a coil diagram of a first embodiment of an electrothermal fabric of the present invention;
[0019] 图 2为本发明电热织物的第二实施例的示意图；  2 is a schematic view of a second embodiment of an electrothermal fabric of the present invention;
[0020] 图 3为本发明实施例的电热纱线单元的截面图；  3 is a cross-sectional view of an electric heating yarn unit according to an embodiment of the present invention;
[0021] 图 4为本发明实施例的电热件的温度测试位置示意图；  4 is a schematic view showing a temperature test position of an electric heating member according to an embodiment of the present invention;
[0022] 图 5为本发明实施例的电热件的测试 1在 15V的电压下的温度测量结果图；  5 is a diagram showing temperature measurement results of a test 1 of an electric heating member at a voltage of 15 V according to an embodiment of the present invention;
[0023] 图 6为本发明实施例的电热件的测试 2在 20V的电压下的温度测量结果图。 发明实施例 6 is a graph showing temperature measurement results of the test 2 of the electric heating member at a voltage of 20 V according to an embodiment of the present invention. Invention embodiment
本发明的实施方式  Embodiments of the invention
[0024] 本发明针对现有电热织物在被通电时， 无法获得均匀的温度的问题， 提出了一 种电热件， 该电热件在平面或三维方向上可实现均匀的电热性能； 本发明的电 热件重量轻、 柔软、 加热均匀， 避免了限制现有织物应用范围的局部过热的问 题。 电热件包括电热织物， 该电热织物包括导电纱线， 该导电纱线可传导低电 压电流； 此外， 电热织物还包括电阻纱线， 该电阻纱线用于阻碍电流的通过而 产生热能并有一定的保温作用。 电热织物可为纺织复合材料或层状织物， 并由 导电纱线和电阻纱线编织而成。 在一定直流电压下， 电热织物上可以产生分布 均匀温度。  [0024] The present invention is directed to the problem that the existing electrothermal fabric cannot obtain a uniform temperature when it is energized, and an electric heating member is proposed, which can realize uniform electrothermal performance in a plane or three-dimensional direction; the electric heating of the present invention Lightweight, soft, and evenly heated, it avoids the problem of local overheating that limits the range of applications in existing fabrics. The electric heating element comprises an electrothermal fabric comprising a conductive yarn, the conductive yarn can conduct a low voltage current; in addition, the electrothermal fabric further comprises a resistance yarn, which is used to block the passage of current to generate heat energy and has a certain The insulation effect. The electrothermal fabric may be a woven composite or a layered fabric and woven from conductive yarns and electric resistance yarns. At a certain DC voltage, a uniform temperature can be distributed on the electrothermal fabric.
[0025] 参照图 1和图 2， 图 1示出了本发明电热织物的第一实施例的线圈图； 图 2为本发 明电热织物的第二实施例的示意图。 其中， 图 1示出了全米兰诺结构， 图 2示出 了移圈结构。  1 and 2, FIG. 1 shows a coil diagram of a first embodiment of an electrothermal fabric of the present invention; and FIG. 2 is a schematic view of a second embodiment of the electrothermal fabric of the present invention. Among them, Fig. 1 shows the full Milano structure, and Fig. 2 shows the transfer structure.
[0026] 如图 1和图 2所示， 在电热织物的第一实施例和第二实施例中， 电热织物的正面 和背面具有相同的结构。 电热织物包括电热纱线单元； 该电热纱线单元包括导 电纱线和电阻纱线； 导电纱线和电阻纱线并列地连接在一起； 如图 3所示。 同时 ， 电热织物的两个相邻电热纱线单元具有固定并且保持一定距离的固定连接节 点。  As shown in FIGS. 1 and 2, in the first embodiment and the second embodiment of the electrothermal fabric, the front and back surfaces of the electrothermal fabric have the same structure. The electrothermal fabric comprises an electrothermal yarn unit; the electrothermal yarn unit comprises a conductive yarn and a resistance yarn; the electrically conductive yarn and the electric resistance yarn are connected side by side; as shown in Fig. 3. At the same time, two adjacent electrothermal yarn units of the electrothermal fabric have fixed attachment nodes that are fixed and held at a distance.
[0027] 图 2还采用箭头标出了热量传递的过程， 热量在电热织物的正面和背面以及横 截面间传递， 热量遇到圈会通过， 遇到电热纱线单元会返回。 在这里， 电阻纱 线起到了阻碍电流而产生热量并防止热量散发的保温作用。  [0027] Figure 2 also uses arrows to indicate the heat transfer process. Heat is transferred between the front and back sides of the electrothermal fabric and the cross-section. The heat encounters the loop and passes through, and the heated yarn unit returns. Here, the resistance yarn acts as a heat holding function that blocks the current and generates heat and prevents heat from being emitted.
[0028] 对于导电纱线， 在一实施例中， 导电纱线为金属导电纱线。 这样， 导电纱线不 仅具有适当的电阻， 而且还具有一定的机械性能。 优选地， 导电纱线为银涂层 导电纱线， 包括作为基底的绝缘芯线， 该绝缘芯线上涂覆有银。 这里， 绝缘芯 线为锦纶复丝、 PET长丝、 PET纤维芯、 芳纶纤维或其他人造纤维。 同时， 导电 纱线的等效直径为 70d-300d。 导电纱线的选择可根据市场需求和具体应用来确 定。 实际上， 大多数导电纱线为银涂层导电纱线。  [0028] For a conductive yarn, in one embodiment, the conductive yarn is a metal conductive yarn. Thus, the conductive yarn not only has an appropriate electrical resistance, but also has a certain mechanical property. Preferably, the electrically conductive yarn is a silver coated electrically conductive yarn comprising an insulating core as a substrate coated with silver. Here, the insulating core is a nylon multifilament, a PET filament, a PET fiber core, an aramid fiber or other rayon. At the same time, the equivalent diameter of the conductive yarn is 70d-300d. The choice of conductive yarns can be determined according to market needs and specific applications. In fact, most conductive yarns are silver coated conductive yarns.
[0029] 对于电阻纱线， 由于尼龙 /棉混纺纱线具有良好的保温性能， 因此， 在本发明 中， 电阻纱线采用尼龙 /棉混纺纱线。 导电纱线和电阻纱线连接形成的电热纱线 单元是克服现有电热织物局部发热的关键之一。 因为导电纱和不导电纱混合织 入材料中可增大整体电阻、 降低并平衡发热热量从而避免局部过热。 [0029] For the resistance yarn, since the nylon/cotton blended yarn has good thermal insulation properties, therefore, in the present invention Medium, the resistance yarn is made of nylon/cotton blended yarn. The electrothermal yarn unit formed by connecting the conductive yarn and the electric resistance yarn is one of the keys to overcome the local heat generation of the existing electrothermal fabric. Because the conductive yarn and the non-conductive yarn are mixed into the material, the overall resistance can be increased, and the heat of heat can be reduced and balanced to avoid local overheating.
[0030] 在导电纱线和电阻纱线组合过程中， 电阻纱线的百分比决定于电热织物所需要 的阻抗。 导电纱线与电阻纱线的数量比优选为 1 : 2、 2 : 1或 1 : 1。  [0030] During the combination of the conductive yarn and the resistive yarn, the percentage of the resistive yarn is determined by the impedance required for the electrothermal fabric. The ratio of the number of conductive yarns to the resistance yarns is preferably 1 : 2, 2 : 1 or 1 : 1.
[0031] 进一步地， 电热织物采用纬编工艺制成。 相比于其他编织工艺， 由纬编工艺编 织成的针织结构可以具有更好的空间稳定性， 可以避免织物在应用过程中发生 位移和不对齐。 通过对电热织物的制造过程中的一些参数的设置， 电热织物可 具有重量轻、 可伸缩性高的优点。 更具体地， 纬编工艺使电热织物的正面和背 面具有一致的结构， 这些结构可以为 1 X 1罗纹、 全米兰诺、 半米兰诺或开襟衫 等。 对于电热织物的结构参数， 电热织物的密度可以更低， 密度可为 220圈 /平 方英寸 -260圈 /平方英寸。 电热织物的制造过程可通过电脑横机完成。 在电热织 物中， 热量在线圈之间产生， 使得电热织物内部及正反面的温度分布均匀。 在 电压的作用下， 通电一定时间的电热织物可达到预定温度， 也可承受超出指定 的温度。  [0031] Further, the electrothermal fabric is made by a weft knitting process. Compared to other weaving processes, the knit structure woven by the weft knitting process can have better dimensional stability and can avoid displacement and misalignment of the fabric during application. By setting some parameters in the manufacturing process of the electric heating fabric, the electrothermal fabric can have the advantages of light weight and high flexibility. More specifically, the weft knitting process has a uniform structure on the front and back sides of the electric heating fabric, and these structures may be 1 X 1 rib, full Milano, semi-Milano or cardigan. For structural parameters of the electric heating fabric, the density of the electrothermal fabric can be lower, and the density can be 220 laps / square inch - 260 laps / square inch. The manufacturing process of the electric heating fabric can be completed by a computerized flat knitting machine. In the electrothermal fabric, heat is generated between the coils, so that the temperature distribution inside and on the front and back sides of the electric heating fabric is uniform. Under the action of voltage, the electrothermal fabric energized for a certain period of time can reach the predetermined temperature and can withstand the specified temperature.
[0032] 本发明的电热件还包括分别穿插在电热织物正面和背面、 用于给电热织物正面 和背面之间提供直流电压的一对电极。 在本发明中， 采用金属电源线作为电极 。 两条金属电源线均匀穿插通过电热织物的正面和背面。 纯银金属丝可考虑作 为金属电源线， 因为其与织物导电纱具有相近的电阻率。 给所述一对电极之间 施加的直流电压会控制在 36V以下， 这样， 通过电热织物的电流可被控制在一定 范围内， 以避免因短路和局部过热而引起的严重事故。  [0032] The electric heating member of the present invention further includes a pair of electrodes interposed between the front and the back of the electric heating fabric for supplying a direct current voltage between the front and back surfaces of the electric heating fabric. In the present invention, a metal power line is used as the electrode. Two metal power cords are evenly inserted through the front and back of the electric heating fabric. Sterling silver wire can be considered as a metal power cord because it has a similar electrical resistivity to the fabric conductive yarn. The DC voltage applied between the pair of electrodes is controlled below 36 V, so that the current through the electric heating fabric can be controlled within a certain range to avoid serious accidents caused by short circuits and local overheating.
[0033] 电热件可被应用于智能压缩绷带系统 （Smart Compression Bandage System) 中， 用于触发形状记忆功能。 通过形状记忆细丝和弹性纤维细丝的结合可以制 造智能压缩绷带系统。 在该应用中， 通过将电热件夹设在智能压缩绷带系统中 ， 使压缩绷带均匀受热， 并可以很好的控制智能压缩绷带系统的温度。 进一步 地， 通过调整电热件的一对电极之间的电压， 可以控制电热织物的发热效率。 这种内部加热方式有助于促进电热织物发热， 消除了外部发热剌激， 也确保解 决了安全问题。 通过改变电热织物的几何参数和结构参数， 考虑电极的相应结 构、 电热织物的电热纱线单元之间的间距以及电热织物的针织方式可以实现对 电热件发热量的设计。 [0033] The electric heating element can be applied to a Smart Compression Bandage System for triggering a shape memory function. An intelligent compression bandage system can be made by a combination of shape memory filaments and elastane filaments. In this application, the compression bandage is uniformly heated by sandwiching the heating element in the intelligent compression bandage system, and the temperature of the intelligent compression bandage system can be well controlled. Further, by adjusting the voltage between the pair of electrodes of the electric heating member, the heat generation efficiency of the electrothermal fabric can be controlled. This internal heating method helps to promote the heating of the electric heating fabric, eliminates the external heat and stimulates the safety problem. Consider the corresponding junction of the electrode by changing the geometric parameters and structural parameters of the electrothermal fabric The spacing between the electrothermal yarn units of the electrothermal fabric and the knitting method of the electrothermal fabric can realize the design of the calorific value of the electric heating member.
[0034] 在本发明中， 电热织物还可以被组合于纺织复合材料或层状织物中。 如果电热 织物中的某一电热纱线单元被破坏， 该电热纱线单元还可以具有发热功能。 在 该应用中， 电热织物的高效率的发热可减小热损失。  [0034] In the present invention, the electrothermal fabric may also be combined in a textile composite or a layered fabric. The electric heating yarn unit may also have a heat generating function if a certain electric heating yarn unit in the electric heating fabric is broken. In this application, the efficient heating of the electrothermal fabric reduces heat loss.
[0035] 本发明的电热件还可以用于矫形器， 该矫形器由温度触发其中的形状记忆纺织 复合材料。 同时， 电热件可作为热源， 以用作矫形器的促动器。 电热件组合于 矫形器的过程是相对简单方便的， 这会有助于根据病人情况而改变矫形器的形 状。 由于电热件的结构是主体， 而形状记忆聚合物是热塑性材料， 在矫形器的 角度修正过程中， 温度可以长时间的保持在 55°C和 60°C之间。  [0035] The electric heating member of the present invention can also be used in an orthosis which is a shape memory textile composite in which temperature is triggered by temperature. At the same time, the heating element can be used as a heat source to act as an actuator for the orthosis. The combination of the heating elements in the orthosis is relatively simple and convenient, which helps to change the shape of the orthosis depending on the patient's condition. Since the structure of the electric heating member is the main body and the shape memory polymer is a thermoplastic material, the temperature can be maintained between 55 ° C and 60 ° C for a long time during the angle correction of the orthosis.
[0036] 为了使本发明的技术目的、 技术方案以及技术效果更加清楚， 以便于本领域技 术人员理解和实施本发明， 下面将结合附图及具体实施例对本发明做进一步说 明。  The present invention will be further described with reference to the accompanying drawings and specific embodiments, in which FIG.
[0037] 本发明提出了一种电热件的一优选实施例。 在该实施例中， 电热件包括电热织 物， 该电热织物包括电热纱线单元； 该电热纱线单元包括导电纱线和电阻纱线 The present invention proposes a preferred embodiment of an electric heating member. In this embodiment, the electric heating member comprises an electrothermal fabric comprising an electrothermal yarn unit; the electrothermal yarn unit comprising a conductive yarn and a resistance yarn
； 导电纱线和电阻纱线并列地连接在一起； The conductive yarn and the resistance yarn are connected side by side;
[0038] 这里， 导电纱线为银涂层导电纱线， 电阻纱线为尼龙 /棉混纺纱线； 导电纱线 和电阻纱线的数量比采用 1 : 1。 其中， 导电纱的细度为 60d， 尼龙 /棉混纺纱的细 度为 32s/2。 [0038] Here, the conductive yarn is a silver coated conductive yarn, and the electric resistance yarn is a nylon/cotton blended yarn; the ratio of the conductive yarn to the electric resistance yarn is 1:1. Among them, the fineness of the conductive yarn is 60d, and the fineness of the nylon/cotton blended yarn is 32s/2.
[0039] 电热件还包括分别设置在电热织物正面和背面、 用于给电热织物正面和背面之 间提供直流电压的一对电极。 该一对电极均为纯银金属丝。  [0039] The electric heating member further includes a pair of electrodes respectively disposed on the front and back surfaces of the electric heating fabric for supplying a direct current voltage between the front and the back of the electric heating fabric. The pair of electrodes are all pure silver wires.
[0040] 测试过程 [0040] Test process
[0041] 本实施例将电热件制作成如图 4所示的袜状矫形器。  [0041] In this embodiment, the electric heating member is formed into a sock-shaped orthosis as shown in FIG.
[0042] 测试 1 : [0042] Test 1 :
[0043] 给电热件的一对电极之间提供 15V的电压， 并记录开始时刻； 并在自开始时刻 起 180s后， 测量如图 4所示的位置 1、 位置 2、 位置 3和位置 4的温度。  [0043] a voltage of 15 V is supplied between a pair of electrodes of the electric heating member, and a start time is recorded; and after 180 s from the start time, position 1, position 2, position 3, and position 4 as shown in FIG. 4 are measured. temperature.
[0044] 该温度测量结果如图 5所示， 位置 1处的温度为 17°C， 位置 2处的温度为 16°C， 位置 3处的温度为 16 °C， 位置 4处的温度为 15 V。 [0045] 测试 2: [0044] The temperature measurement result is shown in FIG. 5, the temperature at the position 1 is 17 ° C, the temperature at the position 2 is 16 ° C, the temperature at the position 3 is 16 ° C, and the temperature at the position 4 is 15 V. [0045] Test 2:
[0046] 给电热件的一对电极之间提供 20V的电压， 并记录开始时刻； 并在自开始时刻 起 180s后， 测量如图 4所示的位置 1、 位置 2、 位置 3和位置 4的温度。  [0046] providing a voltage of 20 V between a pair of electrodes of the electric heating member, and recording the start time; and measuring position 1, position 2, position 3, and position 4 as shown in FIG. 4 after 180 s from the start time temperature.
[0047] 该温度测量结果如图 6所示， 位置 1处的温度为 36°C， 位置 2处的温度为 34°C， 位置 3处的温度为 33 °C， 位置 4处的温度为 30 °C。  [0047] The temperature measurement result is shown in FIG. 6, the temperature at the position 1 is 36 ° C, the temperature at the position 2 is 34 ° C, the temperature at the position 3 is 33 ° C, and the temperature at the position 4 is 30. °C.
[0048] 从测试 1和测试 2可以看到， 在给热织物中穿插的银电极两端提供一个直流电压 ， 使得电热织物在三维方向上产生的温度分布均匀。  [0048] From Test 1 and Test 2, it can be seen that a DC voltage is applied across the silver electrode interspersed in the heat fabric so that the temperature distribution of the electrothermal fabric in the three-dimensional direction is uniform.
[0049] 本发明的电热件具有由导电纱线和电阻纱线编织成的电热织物， 通过给电热织 物的正面和背面之前提供一个电压， 使得电热织物产生均匀的温度分布。 本发 明的电热件发热均匀， 可应用于矫形器等多个应用领域中。  The electric heating member of the present invention has an electrothermal fabric woven from a conductive yarn and a resistance yarn, and a uniform temperature distribution is produced by supplying a voltage to the front and back surfaces of the electric heating fabric. The electric heating member of the present invention generates heat uniformly, and can be applied to a plurality of application fields such as an orthosis.
[0050] 应当理解的是， 对本领域普通技术人员来说， 可以根据上述说明加以改进或变 换， 而所有这些改进和变换都应属于本发明所附权利要求的保护范围。  [0050] It is to be understood that those skilled in the art can devise modifications or variations in accordance with the above description, and all such modifications and changes are intended to be included within the scope of the appended claims.

Claims

权利要求书 Claim
[权利要求 1] 一种电热件， 其特征在于， 包括电热织物， 该电热织物包括电热纱线 单元； 该电热纱线单元包括导电纱线和电阻纱线； 导电纱线和电阻纱 线并列地连接在一起；  [Claim 1] An electric heating member, comprising: an electrothermal fabric comprising an electrothermal yarn unit; the electrothermal yarn unit comprising a conductive yarn and a resistance yarn; and the conductive yarn and the electric resistance yarn juxtaposedly connected;
电热件还包括分别穿插在电热织物正面和背面、 用于给电热织物正面 和背面之间提供电压的一对电极。  The electric heating member further includes a pair of electrodes interposed between the front and the back of the electric heating fabric for supplying a voltage between the front and the back of the electric heating fabric.
[权利要求 2] 根据权利要求 1所述的电热件， 其特征在于， 导电纱线为银涂层导电 纱线。  [Claim 2] The electric heating member according to claim 1, wherein the conductive yarn is a silver coated conductive yarn.
[权利要求 3] 根据权利要求 2所述的电热件， 其特征在于， 银涂层导电纱线包括作 为基底的绝缘芯线， 该绝缘芯线上涂覆有银。 [Claim 3] The electric heating member according to claim 2, wherein the silver-coated conductive yarn comprises an insulating core wire as a substrate, the insulating core wire being coated with silver.
[权利要求 4] 根据权利要求 3所述的电热件， 其特征在于， 绝缘芯线为锦纶复丝、 P [Claim 4] The electric heating member according to claim 3, wherein the insulating core wire is a nylon multifilament, P
ET纤维芯或芳纶纤维。  ET fiber core or aramid fiber.
[权利要求 5] 根据权利要求 1所述的电热件， 其特征在于， 导电纱线和电阻纱线的 数量比为 1 : 2、 2 : 1或 1 : 1。 [Claim 5] The electric heating member according to claim 1, wherein the ratio of the conductive yarn to the electric resistance yarn is 1: 2, 2:1 or 1:1.
[权利要求 6] 根据权利要求 1所述的电热件， 其特征在于， 电热织物的两个相邻电 热纱线单元具有固定连接节点； 电热织物的密度为 220圈 /平方英寸 -2 60圈 /平方英寸。  [Claim 6] The electric heating member according to claim 1, wherein two adjacent electrothermal yarn units of the electrothermal fabric have fixed connection nodes; the electric heating fabric has a density of 220 laps/square-2 to 60 laps/ Square inches.
[权利要求 7] 根据权利要求 6所述的电热件， 其特征在于， 电热织物具有 1 X 1罗纹 结构、 全米兰诺结构、 半米兰诺结构、 开襟衫结构或阿兰花结构。  [Claim 7] The electric heating member according to claim 6, wherein the electrothermal fabric has a 1 X 1 rib structure, a full Milano structure, a semi-Milano structure, a cardigan structure, or an Azolla structure.
[权利要求 8] 根据权利要求 1所述的电热件， 其特征在于， 电极为纯银线； 两条纯 银线分别被缝在电热织物正面和背面上。 [Claim 8] The electric heating member according to claim 1, wherein the electrode is a pure silver wire; and the two pure silver wires are sewn on the front and back surfaces of the electric heating fabric, respectively.
[权利要求 9] 一种电热件的发热方法， 其特征在于， 包括以下步骤： [Claim 9] A method of heating a heating element, comprising the steps of:
步骤 Sl、 提供如权利要求 1所述的电热件；  Step Sl, providing the electric heating member according to claim 1;
步骤 S2、 给电热织物正面和背面之间提供 36V以下的直流电压， 以使 电热织物发热。  Step S2: A DC voltage of 36 V or less is supplied between the front and the back of the electric heating fabric to heat the electric heating fabric.
PCT/CN2016/071329 2016-01-15 2016-01-19 Electrothermal component and heat generating method thereof WO2017120982A1 (en)

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