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Low-electromagnetic-radiation compound electric heating membrane

A technology of electromagnetic radiation and electric heating film, which is applied to electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of harm to health and high electromagnetic radiation, and achieve the effect of safe use, stable performance and easy implementation.

Inactive Publication Date: 2012-11-14
SHENZHEN JOSEN INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, while products heated by electrothermal film provide convenience for people's lives, they also have problems such as high electromagnetic radiation and harm to health.

Method used

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  • Low-electromagnetic-radiation compound electric heating membrane
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  • Low-electromagnetic-radiation compound electric heating membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the wire 30 is connected to the electrothermal film 10 in a known manner, and it supplies power to the electrothermal film 10 by connecting an external 220V power supply. The end of the wire 30 close to the power terminal is provided with a magnetic ring 31, and the magnetic ring 31 is used to filter the low-frequency clutter in the external power supply to prevent the low-frequency clutter from interfering with the electrothermal film 10, so that the heating performance of the electrothermal film is more stable . The magnetic ring 31 can be a magnetic powder core magnetic ring, or a ferrite magnetic ring or a wound magnetic ring. In this embodiment, a ferrite soft magnetic ring is preferred. Before the wire 30 is fixedly connected to the electrothermal film 20, select the magnetic ring 31 whose inner diameter is slightly larger than the outer diameter of the wire 30, and put the magnetic ring 31 on the outside of the wire 30, and make it clo...

Embodiment 2

[0028] The basic structure of this embodiment is the same as embodiment 1, the difference is, as Figure 2-4 As shown, the shielding layer 20 is compounded on the upper surface of the electrothermal film 10, and extends outward beyond the upper surface of the electrothermal film 10, and the edge of the shielding layer 20 is bent downward to the lower surface of the electrothermal film 10 so that its edge is in line with the electrothermal film 10. The edges of the electrothermal film 10 are enclosed, so that the shielding layer 20 and the electrothermal film 10 are compounded together.

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Abstract

The invention relates to a low-electromagnetic-radiation compound electric heating membrane. The compound electric heating membrane is characterized by comprising an electric heating membrane (10), a shielding layer (20) for shielding electromagnetic radiation and a wire (30) connected with the electric heating membrane, wherein the wire (30) is provided with a magnetic ring (31); the shielding layer (20) is compounded on the outer surface on one side of the electric heating membrane (10), which radiates electromagnetic waves outwards; and the shielding layer (20) is compounded with the electric heating membrane (10) through an adhesive or by wrapping the electric heating membrane (10). By compounding the shielding layer on the surface of the electric heating membrane (10) to shield harmful electromagnetic radiation generated by the electric heating membrane, the invention effectively solves the problem of high electromagnetic radiation of the existing electric heating membrane (10), and greatly reduces the value of electromagnetic radiation radiated outwards by the electric heating membrane (10), so that people can be protected from harmful electromagnetic radiation while receiving heat radiation. The compound electric heating membrane has the characteristics of simple structure, easiness in implementation, safety in use, work stability and the like.

Description

【Technical field】 [0001] The invention relates to an electric heating film, in particular to a composite electric heating film with low electromagnetic radiation that can reduce the amount of electromagnetic radiation. 【Background technique】 [0002] With the development of modern science and technology, various home appliances such as far-infrared electric steam baths and household heaters have become more and more popular, and have provided convenience for people's daily life. As a sheet-shaped electric heating material, electrothermal film is widely used in home appliances such as far-infrared electric steam baths and household heaters because of its high heat conversion efficiency. When the electrothermal film is working, as a heating element, it will produce infrared radiation and alternating electric and magnetic fields. The infrared produced by it is a kind of electromagnetic wave that is beneficial to the human body. While the electrothermal film radiates infrared r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/34H05K9/00
Inventor 卢子忱龚向民陈亮
Owner SHENZHEN JOSEN INDAL