Heating flat wire and heating cloth

Abstract

The utility model provides a heating flat wire and heating cloth, and relates to the technical field of heating wires, the heating flat wire comprises a heating wire main body, the heating wire main body comprises a protective film layer and a carbon fiber heating core arranged in the protective film layer, the protective film layer is provided with an accommodating chamber, and the carbon fiber heating core is arranged in the accommodating chamber. And a carbon fiber protective layer is arranged on the outer surface of the protective film layer. According to the heating flat wire, the protective film layer is arranged, and the containing cavity is formed in the protective film layer to contain the carbon fiber heating core, so that direct contact between the heating core and the external environment is effectively isolated, performance reduction or damage caused by external environment factors is reduced, the service life of the heating flat wire is remarkably prolonged, and the safety of the heating flat wire is remarkably improved; and an additional protective barrier is formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating wire, specifically, relate to a kind of heating flat wire and heating cloth. BACKGROUND

[0002] In the electrical heating field, especially in the application needing high efficiency, uniform heating, such as household appliances, industrial heating equipment and new energy vehicle battery thermal management system, etc., heating flat wire as an important heating element, its performance and safety are crucial;

[0003] With the progress of material science, carbon fiber gradually becomes the ideal choice of heating element due to its excellent thermal conductivity, high strength, corrosion resistance and good electric heating conversion efficiency. Carbon fiber heating core can quickly heat up at low voltage, achieving high efficiency heating. Meanwhile, its lightweight feature is also convenient for arrangement in narrow space. However, carbon fiber heating core is exposed and easily damaged. Therefore, we improve it and propose a kind of heating flat wire and heating cloth. SUMMARY

[0004] The utility model aims at the problem that carbon fiber heating core is exposed and easily damaged.

[0005] In order to achieve the above-mentioned purpose of the application, the utility model provides a kind of heating flat wire and heating cloth to improve the above-mentioned problem.

[0006] The application is as follows:

[0007] A kind of heating flat wire, including heating line main body, the heating line main body includes protective film layer and is arranged in carbon fiber heating core of protective film layer, the protective film layer has accommodating cavity, and carbon fiber heating core is arranged in accommodating cavity, the outer surface of the protective film layer is provided with carbon fiber protective layer.

[0008] As a preferred technical scheme of the application, the carbon fiber heating core is composed of a plurality of carbon fiber filaments, and the plurality of carbon fiber filaments are arranged in the accommodating cavity.

[0009] As a preferred technical scheme of the application, the diameter of the carbon fiber filament is μm, and the density is.g / cm.

[0010] As a preferred technical scheme of the application, the protective film layer is a PET protective film layer, and the PET protective film layer is sleeved between the outer surfaces of the plurality of carbon fiber filaments.

[0011] As a preferred technical scheme of the application, the carbon fiber protective layer is attached to the outer surface of the PET protective film layer.

[0012] As a preferred technical scheme of the present application, the gap between the inner side of the PET protective film layer and the outer surface of the carbon fiber filament is filled with a filling layer.

[0013] As a preferred technical scheme of the present application, the filling layer is polycarbonate, which is a thermoplastic plastic with excellent transparency, high impact resistance, heat resistance and weather resistance, and polycarbonate shows good transmission performance in the far infrared wave band.

[0014] As a preferred technical scheme of the present application, the interfacial bonding force between the carbon fiber filament and the filling layer is not less than N / m².

[0015] As a preferred technical scheme of the present application, the surface of the carbon fiber protective layer has an antistatic coating.

[0016] A heating cloth, comprising a heating cloth main body, the heating cloth main body is woven by heating flat wire.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] In the scheme of the present application:

[0019] In order to solve the problem that the carbon fiber heating core is exposed and easily damaged in the prior art, the present application sets up a protective film layer and constructs a containing cavity in it to accommodate the carbon fiber heating core, effectively isolates the direct contact of the heating core with the external environment, reduces the performance decline or damage caused by external environmental factors, significantly improves the service life and safety of the heating flat wire, and the introduction of the carbon fiber protective layer not only serves as an additional protective barrier, but more importantly, when the carbon fiber heating core works, the carbon fiber protective layer can also be heated. Due to the special properties of carbon fiber material, it can efficiently convert electrical energy into heat energy when heated, and further excite far infrared radiation. Far infrared rays have good thermal effect on human body, can promote blood circulation and relieve pain, and at the same time, the strong penetration of far infrared rays can more evenly heat the target object, improving the heating efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A three-dimensional structure schematic diagram of the heating flat wire is provided for the present application;

[0021] Figure 2 A planar structure schematic diagram of the heating flat wire is provided for the present application;

[0022] Figure 3 A partial structure schematic diagram of the heating flat wire is provided for the present application;

[0023] Figure 4 A structure schematic diagram of the heating flat wire and the heating cloth is provided for the present application.

[0024] Indicated in the figure:

[0025] 1, heating line body; 101, carbon fiber wire; 102, PET protective film layer; 103, filling layer; 104, carbon fiber protective layer; 2, heating cloth body. DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0027] As described in the background, with the progress of material science, carbon fiber gradually becomes an ideal choice for heating elements due to its excellent thermal conductivity, high strength, corrosion resistance and good electric-thermal conversion efficiency. The carbon fiber heating core can quickly heat up at a low voltage to achieve efficient heating, and its lightweight property also facilitates its arrangement in a small space. However, the direct exposure of the carbon fiber heating core to the outside world is prone to damage.

[0028] To solve this technical problem, the present application provides a heating flat wire and a heating cloth.

[0029] Specifically, please refer to Figures 1-3 The heating flat wire and the heating cloth specifically include:

[0030] The heating line body 1 includes a protective film layer and a carbon fiber heating core arranged in the protective film layer. The protective film layer has a containing cavity, and the carbon fiber heating core is arranged in the containing cavity. The outer surface of the protective film layer is provided with a carbon fiber protective layer 104.

[0031] The heating flat wire and the heating cloth provided by the present application effectively isolate the direct contact between the heating core and the external environment by arranging the protective film layer and constructing the containing cavity therein to accommodate the carbon fiber heating core, thereby reducing the performance decline or damage caused by external environmental factors, significantly improving the service life and safety of the heating flat wire. The introduction of the carbon fiber protective layer 104 not only serves as an additional protective barrier, but more importantly, when the carbon fiber heating core is working, the carbon fiber protective layer 104 can also be heated. Due to the special properties of carbon fiber material, it can efficiently convert electrical energy into heat energy when heated, and further excite far infrared radiation. Far infrared rays have good thermal effects on the human body, can promote blood circulation and relieve pain. At the same time, the penetration of far infrared rays is strong, which can more evenly heat the target object and improve the heating efficiency.

[0032] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings.

[0033] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0034] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] Embodiment 1, please refer to Figures 1-3 A heating flat wire, comprising a heating wire body 1, the heating wire body 1 comprises a protective film layer and a carbon fiber heating core arranged in the protective film layer, the protective film layer has a containing cavity, and the carbon fiber heating core is arranged in the containing cavity, and the outer surface of the protective film layer is provided with a carbon fiber protective layer 104; the present application sets up the containing cavity in the protective film layer to accommodate the carbon fiber heating core, effectively isolates the direct contact between the heating core and the external environment, reduces the performance decline or damage caused by external environmental factors, significantly improves the service life and safety of the heating flat wire, and the introduction of the carbon fiber protective layer 104 not only serves as an additional protective barrier, but more importantly, when the carbon fiber heating core works, the carbon fiber protective layer 104 can also be heated. Due to the special properties of carbon fiber material, it can efficiently convert electrical energy into heat energy when heated, and further excite far infrared radiation. Far infrared rays have good thermal effect on human body, can promote blood circulation and relieve pain, and at the same time, the penetration of far infrared rays is strong, which can more evenly heat the target object and improve the heating efficiency.

[0036] Further, as shown in Figures 1-3 The carbon fiber heating core is composed of a plurality of carbon fiber filaments 101, and the plurality of carbon fiber filaments 101 are arranged in the containing cavity. Compared with a single heating element, the plurality of carbon fiber filaments 101 can increase the heating area and the heating uniformity, so that the heating flat wire can stably and uniformly generate heat when working, avoiding the situation of local overheating or uneven heat distribution, thereby improving the heating effect and the reliability of the product.

[0037] Further, the diameter of the carbon fiber filament 101 is 4 μm, and the density is 1.6 g / cm 3 .

[0038] Embodiment 2, the heating flat wire and the heating cloth provided in embodiment 1 are further optimized, specifically, as shown in Figures 1-3As shown, the protective film layer is a PET protective film layer 102, which is sleeved between the outer surfaces of the plurality of carbon fiber filaments 101. The PET protective film has good mechanical properties, chemical stability and insulation performance. The mechanical properties can effectively protect the internal carbon fiber filaments 101 from damage caused by external force extrusion and pulling during processing and use. The PET material has high tensile strength and toughness. The thickness of the PET protective film layer 102 is less than 25 pm. The thin PET protective film layer 102 has high transmittance to far infrared rays.

[0039] Further, as shown in Figure 2 and Figure 3 The carbon fiber protective layer 104 is attached to the outer surface of the PET protective film layer 102, which can further enhance the protection of the internal carbon fiber filaments 101, form a multi-layer protective structure, and improve the overall protection ability to effectively block the intrusion of water vapor, dust and other impurities in the external environment.

[0040] Further, as shown in Figure 3 The gap between the inner side of the PET protective film layer 102 and the outer surface of the carbon fiber filaments 101 is filled with a filling layer 103. The filling layer 103 can fill the gap between the PET protective film layer 102 and the carbon fiber filaments 101, and can fix the carbon fiber filaments 101 to prevent displacement and shaking of the carbon fiber filaments 101, thereby ensuring the stability of the heating flat wire structure.

[0041] Further, the filling layer 103 is polycarbonate, which is a thermoplastic material with excellent transparency, high impact resistance, heat resistance and weather resistance. In the far infrared wave band, polycarbonate exhibits good transmittance.

[0042] Further, the interfacial bonding force between the carbon fiber filaments 101 and the filling layer 103 is not less than 3 N / m². Sufficient interfacial bonding force can ensure the close combination between the carbon fiber filaments and the filling layer, reduce the separation of the two due to thermal expansion and contraction or other factors during long-term use, and thus ensure the structural integrity and stability of the heating flat wire.

[0043] Further, the surface of the carbon fiber protective layer 104 has an antistatic coating. The antistatic coating can effectively reduce static electricity generated on the surface of the carbon fiber protective layer 104 during use, reduce the interference of static electricity accumulation on surrounding electronic equipment, and the antistatic coating can be a polyurethane antistatic coating.

[0044] Embodiment 3: A heating cloth includes a heating cloth body 2, which is woven by a heating flat wire.

[0045] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the above-mentioned term in the utility model concrete meaning according to specific circumstances.

[0046] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, and not all the embodiments, the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model.The utility model can be realized in many different forms, and contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacement to part of the technical features.For equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, are also within the patent protection scope of the utility model.

Claims

1. A flat heater characterized by comprising: The heating wire body (1) comprises a protective film layer and a carbon fiber heating core arranged in the protective film layer, the protective film layer has a containing cavity, and the carbon fiber heating core is arranged in the containing cavity, and an outer surface of the protective film layer is provided with a carbon fiber protective layer (104); the carbon fiber heating core is composed of a plurality of carbon fiber filaments (101), and the plurality of carbon fiber filaments (101) are arranged in the containing cavity; the protective film layer is a PET protective film layer (102), the PET protective film layer (102) is sleeved between outer surfaces of the plurality of carbon fiber filaments (101); the carbon fiber protective layer (104) is attached to an outer surface of the PET protective film layer (102); a gap between an inner side of the PET protective film layer (102) and an outer surface of the carbon fiber filament (101) is filled with a filling layer (103); and the filling layer (103) is polycarbonate.

2. A flat heater according to claim 1, wherein The carbon fiber filament (101) has a diameter of 4 μm and a density of 1.6 g / cm 3 .

3. A flat heater according to claim 2, wherein The interfacial bonding force between the carbon fiber filament (101) and the filling layer (103) is not less than 3 N / m².

4. A flat heater according to claim 3, wherein The carbon fiber protective layer (104) has an antistatic coating on a surface thereof.

5. A heating cloth, characterized by The heating cloth body (2) is knitted by the flat heating wire according to any one of claims 1-4.

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