A safe metal electrothermal film
A metal electric heating film, safe technology, applied in the direction of electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of reducing the working efficiency and reliability of products, affecting the normal use of products, etc. too high effect
Active Publication Date: 2019-06-21
ANHUI NINGGUO CITY TIANCHENG TECH DEV
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Problems solved by technology
However, since the existing metal electric heating film is composed of a reciprocating serpentine metal film line between two layers of insulating films, the two ends of the metal film line are respectively connected with the positive and negative power lines, so the metal film When any part of the line is broken due to external force (circuit break), the entire metal film line will not conduct electricity and generate heat, which reduces the working efficiency and reliability of the entire product and affects the normal use of the product
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[0016] Such as figure 1 and 2 as shown, figure 1 It is a schematic structural diagram of a safe metal electrothermal film proposed by the present invention, figure 2 It is a schematic structural diagram of the specific configuration of the heating unit of a safe metal electric heating film proposed by the present invention.
[0017] refer to figure 1 and 2 , a safe metal electric heating film proposed by the present invention, comprising: a first insulating layer 1, a first metal-plastic composite layer 2, a plurality of heating units, a plurality of temperature-sensing wires 4, a second metal-plastic composite layer 5, The second insulating layer 6;
[0018] The first insulating and isolating layer 1, the first metal-plastic composite layer 2, the second metal-plastic composite layer 5, and the second insulating and isolating layer 6 are stacked successively. The metal of the first metal-plastic composite layer 2 and the second metal-plastic composite layer 5 The layer...
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The invention discloses a safety-type metal electric heating film. A first insulation isolation layer, a first metal-plastic composite layer, a second metal-plastic composite layer and a second insulation isolation layer are sequentially laminated. A metal layer of the first metal-plastic composite layer and a metal layer of the second metal-plastic composite layer are oppositely disposed, heating units are disposed between the first metal-plastic composite layer and the second metal-plastic composite layer, and temperature sensing wires are disposed between the first metal-plastic composite layer and the second metal-plastic composite layer. Each conductor is disposed between two adjacent heating units, each temperature sensing wire is formed by stranding of a plurality of conductors, and insulation layers of the conductors are made of negative temperature coefficient thermo-sensitive materials. The safety-type metal electric heating film with the above optimized design is advantageous in that, structure design is optimized and reasonable, the metal layers can be used for rapidly conducting heat of heating wires, and plastic layers can play a moisture-proof anti-corrosion effect, overhigh temperature of the heating units can be effectively prevented via the temperature sensing wires, and work of other heating units is not influenced.
Description
technical field [0001] The invention relates to the technical field of metal electric heating film, in particular to a safe metal electric heating film. Background technique [0002] At present, there are two main types of electrothermal film products: the ink film with conductive ink as the heating element and the metal electrothermal film with metal thin film lines as the heating element. Compared with ink electrothermal film, metal electrothermal film has anti-aging, long life It is favored by the market due to its many advantages such as long life, strong heat storage resistance, and stable performance. However, since the existing metal electric heating film is composed of a reciprocating serpentine metal film line between two layers of insulating films, the two ends of the metal film line are respectively connected with the positive and negative power lines, so the metal film When any part of the line is broken due to external force (circuit break), the entire metal fi...
Claims
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IPC IPC(8): H05B3/12H05B3/34
CPCH05B3/12H05B3/34H05B2203/013H05B2203/019
Inventor 胡春国
Owner ANHUI NINGGUO CITY TIANCHENG TECH DEV