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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: 2011-03-30
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] As shown in Figure 4, a method for making a far-infrared flexible electrothermal material, firstly, add a nano-scale far-infrared reinforcing material with 3% of the weight of the carbon paste in the conductive carbon paste, use a high-speed mixer and a grinder to make a conductive process coating, and use a coating The method is to coat the conductive process paint on a 0.025mm thick PET polyester film as a flexible substrate, and the coating amount is 30g / 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. The base double-sided adhesive tape is packaged with a cotton protective layer, and then the copper riveted wire connector is welded to obtain the far-infrared flexible electrothermal material as shown in Figures 1 to 3. The electrothermal film 6 of th...

Embodiment 2

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

Embodiment 3

[0033] Referring to Figure 4, a method for making a far-infrared flexible electrothermal material, first uses a high-speed mixer and a grinder to make a conductive carbon paste and a nano-scale far-infrared reinforcing material with a weight of 5% of the conductive carbon paste to make a conductive process coating, and form it by coating On the PET polyester film with a thickness of 0.025mm as a flexible substrate, it is dried in a drying channel, and then printed with conductive adhesive and dried to make an electric heating film, which is cut into a size of 35mm x 30mm wide, with a width of 5mm x thickness The 0.04mm copper foil is used as the current-carrying strip, sewn on the electric heating film, encapsulated with a base double-sided adhesive with a specification of 40 g / m2 and a cotton protective layer, and welded with a copper rivet wire connector, as shown in Figure 1 ~The far-infrared flexible electrothermal material shown in Figure 3, the electrothermal film 6 and a...

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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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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/18H05B3/36B32B5/00
Inventor 蒋士忠卢春霞
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO