Novel low-voltage uncharged anti-radiation electric blanket

Abstract

The invention relates to a novel low-voltage uncharged anti-radiation electric blanket which comprises a low-voltage transformer and an electric blanket main body connected with the transformer; the electric blanket main body comprises a fabric 1 and a fabric 2; an anti-radiation layer and a heating layer are arranged between the two layers of fabrics; the anti-radiation layer is formed by weaving a grille shaped metal filament and non-woven fabrics in a mixing way; the metal filaments are connected with a ground terminal of a power supply through an earth wire; the heating layer comprises an alloy heating filament and a fabric 3; the heating filament is woven on the fabric 3; and the anti-radiation layer is covered on the heating filament. According to the electric blanket provided by the invention, a low-voltage direct current power supply with a voltage less than 20 V is adopted for supplying power, so that the security of the electric blanket is further improved; the heating filament adopts an alloy heating filament, which has a PTC (positive temperature coefficient) characteristic, so that the temperature of the heating filament can be remained stable, and the problem that the temperature of the electric blanket is hard to be controlled in the prior art is solved; and moreover, the anti-radiation layer woven by the metal filaments and the non-woven fabrics can effectively prevent electromagnetic radiation, and the grounded metal filaments also increase the safety coefficient of the electric blanket.

Description

technical field [0001] The invention relates to electrical equipment in daily life, in particular to a low-voltage uncharged anti-radiation electric blanket. Background technique [0002] For a long time, electric blankets have been using the traditional method of using 220V power supply to directly connect the heating wire to generate heat to achieve the purpose of heating. Therefore, there are problems of electromagnetic radiation and electromagnetic pollution, and the temperature is difficult to control, and there are potential safety hazards. Using this electric blanket Blanket people are prone to dry mouth and difficulty falling asleep. Later, an electric blanket powered by a 24V high-frequency AC power supply appeared, which solved the electric shock problem of the electric blanket, but the electromagnetic radiation generated by this electric blanket is greater, which will make the user's mouth dry and cause the surrounding wireless devices to It cannot be used normal...

AI Technical Summary

Problems solved by technology

[0002] For a long time, electric blankets have been using the traditional method of using 220V power supply to directly connect the heating wire to generate heat to achieve the purpose of heating. Therefore, there are problems of electromagnetic radiation and electromagnetic pollution, and the temperature is difficult to control, and there are potential safety hazards. Using this electric blanket Blanket people are prone to dry mouth and difficulty falling asleep

Later, an electric blanket powered by a 24V high-frequency AC power supply appeared, which solved the electric shock problem of the electric blanket, but the electromagnetic radiation generated by this electric blanket is greater, which will make the user's mouth dry and cause the surrounding wireless devices to It cannot be used normally; at present, a metal wire shielding layer is added to the electric blanket, which reduces electromagnetic radiation and also increases safety hazards, because this kind of electric blanket adds a layer of metal wire on the outer layer of the heating wire, if the electric blanket If the insulation layer is damaged, it will directly lead to electric leakage of the electric blanket, which will cause serious danger to the user.

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