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Far-infrared flexible electric heating material and production method and use thereof

An electric heating material and a technology of a manufacturing method, which are applied in heating element materials, electric heating devices, ohmic resistance heating, etc., can solve problems such as large load resistance deviation, complicated carrying and installation, and short service life, and achieve uniform heating, wide application range, The effect of long service life

Active Publication Date: 2009-05-13
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrothermal films currently on the market have the disadvantage of not being able to withstand folding. After a long time or repeated folding, the load resistance deviation is large, so it is more complicated to carry, transport and install, and has a short service life. There are certain safety hazards.

Method used

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  • Far-infrared flexible electric heating material and production method and use thereof
  • Far-infrared flexible electric heating material and production method and use thereof
  • Far-infrared flexible electric heating material and production method and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as Figure 4 As shown, a method for making a far-infrared flexible electrothermal material, firstly, adding a nano-scale far-infrared reinforcing material with 3% of the weight of the carbon paste in the conductive carbon paste, using a high-speed mixer and a grinder to make a conductive process coating, and using a coating method to coat the conductive material The process coating is applied on a 0.025 mm thick PET polyester film as a flexible substrate at a coating weight of 30 g / m 2 , dried in a drying tunnel to make an electric heating film, cut into a size of 250mm×width 120mm, use a width of 4mm×thickness 0.03mm copper foil as a current-carrying strip, and sew it on the electric heating film, use a specification of 25 grams per square meter. Base double-sided adhesive tape and cotton protective layer package, and then weld the copper rivet wire connector to get the following Figure 1 ~ Figure 3 In the far-infrared flexible electrothermal material shown, the...

Embodiment 2

[0031] see Figure 4 , a method for making far-infrared flexible electric heating materials, firstly use a high-speed mixer and a grinder to make conductive carbon paste into a conductive process coating, and print it on a 0.025mm thick PET polyester film as a flexible substrate by coating After drying, it is made into an electric heating film, cut into a size of 440mm × width 344mm, using a width 6mm × thickness 0.05mm copper foil as a current-carrying strip, and sewing it on the electric heating film, using TPU hot melt adhesive with a specification of 15 grams per square meter The film and the cotton protective layer are hot-pressed at 130°C, and then riveted and welded with copper riveted wire connectors. See Figure 1 ~ Figure 3 In the far-infrared flexible electrothermal material shown, the electrothermal film 6 and at least two current-carrying bars 7 of the far-infrared flexible electro-thermal material 1 are packaged in the packaging material 5, and the electrothermal...

Embodiment 3

[0033] see Figure 4 , a method for making a far-infrared flexible electrothermal material. Firstly, a conductive carbon paste and a nano-scale far-infrared reinforcing material with a weight of 5% of the conductive carbon paste are used to make a conductive process coating by using a high-speed mixer and a grinder. On the 0.025mm thick PET polyester film of the base material, it is dried in the drying channel, and then the conductive adhesive is printed and dried to form an electric heating film, which is cut into a size of 35mm x 30mm wide, and a 5mm wide x 0.04mm thick Copper foil is used as a current-carrying bar, sewed on the electrothermal film, encapsulated with a base double-sided adhesive with a specification of 40 g / m2 and a cotton protective layer, and welded with copper riveting wire connectors. See Figure 1 ~ Figure 3 In the far-infrared flexible electrothermal material shown, the electrothermal film 6 and at least two current-carrying bars 7 of the far-infrared ...

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Abstract

The present invention relates to a far infrared flexible electro thermal material and a preparation method and application thereof. The far infrared flexible electro thermal material includes electric heating film, at least two current carrying strips, packaging material and wire connector, wherein the electric heating film produced by drying substrate and conductive processing coating on substrate, and at least two current carrying strips are sealed inside packaging material, the at least two current carrying strips fixed on the electric heating film in the way of sewing have no contact to each other, the substrate is flexible substrate which is PET polyester file with specification 15-40 gram per square meter, the packaging material is organic double sided tape with specification 25-60 or TPU hot melt adhesive film with specification 15-40 gram per square meter. Compared with prior art, the electro thermal material is flexible with high electro thermal conversion rate through the invention. Nanometer far infrared reinforcing material adopted in the invention has significant health function.

Description

technical field [0001] The invention relates to electrothermal materials, in particular to a far-infrared flexible electrothermal material and its production method and application. Background technique [0002] Common electric heating methods include alloy electric heating wire heating, electric heating ceramic heating and conductive paint heating methods. Among them, alloy electric heating wire heating is the most traditional, but there is a low power conversion efficiency of only 60% to 70%, and the electric heating wire is easy to break. Poor and other disadvantages, so only low-end products can be produced, and the application is limited, and the electric energy conversion efficiency of electrothermal ceramic heating is only about 70%, and it cannot be cut and used according to the demand, and the shock resistance is poor. [0003] Conductive paint heating uses electric heating film as the heating body. The electric heating film uses glass fiber, synthetic fiber, cotton...

Claims

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Application Information

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IPC IPC(8): H05B3/18H05B3/36B32B5/00
Inventor 蒋士忠卢春霞
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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