Radiation infrared electric heating cloth and its producing method and use

Abstract

The invention features a layer of textile fabric materials composed of non-metal heating wire, metal wire winding and textile fabrics; on the upper and bottom surfaces, respectively covering a protection layer; the non-metal heating wire is composed of the polypropylene and the carbon mixture; the metal wire winding is made by winding the metal wire on the textile fabric; on both edge of the textile fabric materials, respectively setting up a latitudinal direction metal wires band; in the longitude direction of the textile fabric materials, alternatively setting up several longitude-leading metal wire bands for connecting said latitudinal direction metal wires; the metal wire conducting band is composed of said metal wire windings and are set up with the cutting pierces and the negative and positive poles used for connecting the power; said protection layer is bound with the textile fabric materials with adhesives.

Description

technical field [0001] The invention relates to an electric heating cloth, in particular to an electric heating cloth that radiates far-infrared rays and its manufacturing method and application. Background technique [0002] In the prior art, the biggest disadvantage of wire heating products is low mechanical strength. If the metal wire breaks, the lighter product will be scrapped; the heavier one will generate an electric arc, resulting in fire and electric shock. [0003] As a non-metallic heating wire, carbon fiber is characterized by being relatively soft and elastic, and will not break when mechanically deformed. But carbon fiber is difficult to connect with metal wires. Because there is neither chemical affinity nor physical affinity between carbon and metal, only mechanical connection. Current passing through such a connection can cause the carbon to burn, causing damage to the connection and sparking or arcing. In addition, the carbon fiber wire cannot control t...

AI Technical Summary

Problems solved by technology

[0004] The traditional heating wire is basically a nickel-chromium alloy wire. When it is heated by electricity, its temperature is as high as hundreds or even thousands of degrees. It is easy to oxidize and break, so it is very easy to damage, poor working reliability, and short life. Unsafe hazards caused by fire

Moreover, nickel-chromium alloy wires have a large amount of electromagnetic wave radiation that is not good for physical and mental health. The way of heat conduction is high-temperature to low-temperature radiation, which makes people feel dry and stuffy. Moreover, it must rely on peripheral temperature control elements to achieve temperature control. The failure of the temperature control element will cause serious dangerous consequences

[0005] At present, a class of electric heating products with non-metallic heating wires as electric heating elements appears on the foreign market. The non-metallic heating wire used in this product is a filamentous electric heating body made of a mixture of polypropylene and carbon. This thin plate There are the following disadvantages in the shape of electric heating materials: 1. Since the cross section of the metal wire used in this type of electric heating material is circular, and three strands or five strands of metal wire are twisted into a rope, the outer diameter of the rope is too large, and then it The electrothermal material woven as warp or weft is hard, not resistant to folding, easy to break, and is in the shape of a thin plate instead of a softer cloth, which limits its application range.

2. In this type of electric heating material, the non-metallic heating wire and the metal wire adopt a textile structure of ordinary warp and weft threads, and polyester-cotton threads are used in the arrangement of the weft threads, so the textile structure between the warp and weft threads is loose. The gap is large, resulting in a large amount of glue used when compounding the protective layer, and the product is prone to hardening and hardening

3. The contact surface between metal wire and non-metallic heating wire on the arc surface is small, so unstable disconnection often occurs. In order to avoid this phenomenon, the electrothermal material has to increase the density of metal wire and non-metallic heating wire during the weaving process. usage, increased cost

4. There is no special electrode structure in this type of electric heating material. When connecting the power supply, it can only be used to destroy the surface of the thin plate and directly connect the power line to the metal wire in the electric heating material. It is not convenient to use and install, and the connection is also difficult Easy to disconnect; 5. The front and back surfaces of this type of electric heating material are protected by polyester material, which is also one of the reasons for its hard board

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