JPH0441599Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field of the Invention> The present invention relates to electric heating devices such as electric blankets and electric carpets.

<Prior art> Conventional electric heating devices, such as electric blankets, are constructed by arranging a heating element that generates heat when energized within the blanket fabric, but heating by the heating element is mainly achieved by conduction of the heating element. It is caused by heat, and therefore has the disadvantage that only the surface that is in contact with the heating element becomes warm.

<Purpose of the invention> The object of the invention is to provide an electric heating device that eliminates the above-mentioned drawbacks.

<Embodiment of the invention> Hereinafter, a case where an embodiment of the electric heating device of the invention is applied to an electric blanket will be described with reference to the drawings.

The electric heating device of the present invention has a flexible linear heating element 4 provided with a far-infrared radiating part 3 that efficiently radiates far-infrared rays in a disposed part 2 in a blanket fabric 1 that performs heat insulation. A power cord 6 having a power plug 5 is connected to the heating element 4, and electricity is supplied to the heating element 4 via the power plug 5 and the power cord 6. The warmth of heat conduction due to heat generation and the far-infrared radiating part 3 of the heating element 4
The structure is such that the system collects warmth by radiating far-infrared rays.

In the above structure, the heating element 4 is constructed by winding a heating wire 8 around a core wire 7 and covering it with an insulating jacket 9, as shown in FIG. Far infrared rays with a long target wavelength (wavelength
The far-infrared radiating section 3 is provided by coating with a paint containing a material such as zircon (ZrO ₃ ) that efficiently radiates far-infrared rays (5μ to 25μ).

When heating is performed using the electric heating device configured as described above, not only heat is collected by heat conduction from the heating element 4, but also the inside of the body is heated by radiation of far infrared rays with a wavelength of 5μ to 25μ, which is easily absorbed by human skin. Soft heating can be obtained by the penetration of heat.

In addition, in the above-mentioned example, the case where it was applied to an electric blanket as an electric heating device was explained, but it can also be applied to other electric heating devices such as an electric carpet, and the present invention is not particularly limited to the above-mentioned example. It's not something you can do.

<Effects of the invention> Since the electric heating device of the invention has the above-mentioned configuration, the heating element can be easily installed even in items that require flexibility, such as electric carpets and electric blankets. In addition, when constructing the heating element, it is only necessary to apply a paint containing a material that radiates far infrared rays, and the heating element can be manufactured at low cost.

In areas that come into contact with the human body, heat is collected from the surface of the body through heat conduction from the heating element, and heat is collected by far-infrared rays that penetrate deep into the body. It can be heated, and in areas that are not in direct contact, active heating using far infrared rays can efficiently provide comfortable warmth.

[Brief explanation of the drawing]

Fig. 1 is an explanatory plan view showing one embodiment of the electric heating device of the present invention, Fig. 2 is an explanatory enlarged cross-sectional view of the main part of Fig. 1, and Fig. 3 is a partially broken view of the heating element of Fig. 1. FIG. In the drawings, numeral 3 indicates a far-infrared radiating section, and numeral 4 indicates a heating element.

Claims (1)

[Scope of utility model registration request] A heating wire is spirally wound around a core wire, covered with an insulating jacket to form a heating element, and the heating element is arranged in a meandering manner in the main body of the heating device, making it suitable for electric carpets and electric blankets. An electric heating device having flexibility, characterized in that a far-infrared radiating portion is provided by coating the surface of the jacket with a paint containing a material that efficiently radiates far-infrared rays. .