Composite low-voltage electrothermal film and making method

A manufacturing method and technology of electric heating film, which are applied in the manufacture of electric heating devices, composite low-voltage electric heating film and its manufacturing field, can solve the problems of insufficient heating temperature, thick material, poor safety of high voltage, etc., and reach the range of geometric shape variation. wide effect

Inactive Publication Date: 2007-06-13
周挺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many restrictions on the application of these electric heating products, mainly in high-voltage applications. Due to the large resistance value, high voltage is required, and high-voltage safety is poor, and there is a danger of leakage
Due to the need for insulation, the number of heat-conducting layers is large, the temperature rises slowly when starting up, the material is thick, and the product is heavy. It is difficult to process small and special-shaped products, and the comfort is poor. It is difficult to m

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  • Composite low-voltage electrothermal film and making method

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Effect test

Embodiment 1

[0029] A composite low-voltage electric heating film is a low-voltage electric heating film with a composite structure. Please refer to Figure 1 for its composite structure. The upper and lower surfaces of the composite low-voltage electric heating film are anti-oxidation and temperature-resistant insulating layers and glass fibers for alkali removal. Connected, the electrothermal film is coated with conductive silver paste, and the wires are drawn out.

[0030] The percentage weight ratio of each component of the composite low-voltage electric heating film is:

[0031] Carbon-based inorganic materials 21%

[0032] Metal oxide material 25%

[0033] Inorganic compound material 10%

[0034] Rare earth materials 4%

[0035] Polymerized liquid medium adhesive 40%

[0036] Anhydrous ethanol (diluent) appropriate amount

[0037]The components of the composite low-voltage electrothermal film in Example 1 are calculated based on the optimal percentage weight ratio of its internal...

Embodiment 2

[0039] A composite low-voltage electric heating film is a low-voltage electric heating film with a composite structure. Please refer to attached drawing 1 for its composite structure. The electrothermal film is coated with conductive silver paste, and lead wires are drawn out.

[0040] The percentage weight ratio of each component of the composite low-voltage electric heating film is:

[0041] Carbon-based inorganic materials 25%

[0042] Metal oxide material 15%

[0043] Inorganic compound material 15%

[0044] Rare earth materials 3%

[0045] Polymerized liquid medium adhesive 42%

[0046] Anhydrous ethanol (diluent) appropriate amount

[0047] The components of the composite low-voltage electrothermal film in Example 2 are calculated based on the optimal percentage weight ratio of the internal structure.

Embodiment 3

[0049] A composite low-voltage electric heating film is a low-voltage electric heating film with a composite structure. Please refer to Figure 1 for its composite structure. The upper and lower surfaces of the composite low-voltage electric heating film are anti-oxidation and temperature-resistant insulating layers and insulation layers The stainless steel is connected, and the weight ratio of the insulating layer of the stainless steel with the insulating layer is 80% organic silicon insulating resin, insulating oxide 10% magnesium oxide and insulating oxide 10% titanium oxide are uniformly mixed, sprayed on the surface of the stainless steel and dried in an oven at 250°C for 2 -Dried for 5 hours, the electrothermal film is coated with conductive silver paste, and leads are drawn out.

[0050] The percentage weight ratio of each component of the composite low-voltage electric heating film is:

[0051] Carbon-based inorganic materials 30%

[0052] Metal oxide materials 18%

...

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Abstract

The structure of the complex low-voltage electric heating film (CLEHF) consists of the electric heating inorganic compound (EHIC), the hi-temperature durable (HTD) isolator, the electrodes and the anti-oxidation HTD isolation layer. The EHIC consists of the carbon system inorganic material, the rare-earth material, the metal oxide, the inorganic compound and the polymerization liquid medium adhesive. The manufacture technology of CLEHF includes: ingredient configuring, mixing, skiving, spraying, solidifying and forming. With a low work voltage of 12 volts, CLEHF heats up to 100 degrees centigrade in only 50 seconds. This invention possesses advantages of fast response time, high heating efficiency and wide application range. Depending on different features and usages of various heater bodies, different materials are selected to form different shapes of heating films. Therefore, this heating film adapts to all handy low voltage electric heating apparatuses.

Description

technical field [0001] The invention relates to a composite low-voltage electric heating film and a manufacturing method thereof, belonging to a manufacturing method of an electric heating device. In particular, it relates to a composite low-voltage electrothermal film for low voltage below 12 volts. Background technique [0002] At present, in many fields such as household appliances and industrial appliances, electric heating products are more and more widely used. There are many restrictions on the application of these electric heating products, which are mainly used in high voltage applications. Due to the large resistance value, high voltage is required, and the safety of high voltage is poor, and there is a danger of leakage. Due to the need for insulation, there are many heat-conducting layers, the temperature rises slowly when starting up, the material is thick, and the product is heavy. It is difficult to process small and special-shaped products, and the comfort i...

Claims

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Application Information

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IPC IPC(8): H05B3/10H05B3/34H05B3/14
Inventor 周挺
Owner 周挺
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