JPH08180963A - Electric heating sheet and electric heating unit using it - Google Patents

Abstract

PURPOSE: To provide an electric heating sheet, capable of meeting a demand, being safely handled, and moreover relatively inexpensive; and an electric heating unit using it. CONSTITUTION: An electric heating unit is composed by laminating, in order from the lower part, a heat insulator 1, a thermal diffusion aluminum sheet 2, a lower side insulating sheet 3, a conductive material 4 being silk-screen- printed on the lower side insulating sheet 3, a bus bar 5 for supplying electric power to the conductive material 4, and an upper side insulating sheet 6. Also in the electric heating unit, a space is adopted as a warming up chamber by retaining the space on the electric heating sheet to block a periphery to fixedly mount an appropriate board onto an upper surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heating sheet, and more particularly to a sheet heating element that can be used as a floor heating, hot carpet, and other heat sources, and an electric heating unit for floor heating and the like using the sheet heating element. It is a thing.

[0002]

2. Description of the Related Art Recently, a floor heating system in which a heater is buried in a floor plate is becoming widespread. However, the conventional system has a drawback that it takes a lot of time to install and is very expensive. However, there is a problem in that it is vulnerable to moisture and is likely to cause a failure when water is spilled on the floor.

[0003]

As described above, since the heaters used for the conventional floor heating have various problems, the improvement thereof has been demanded. Therefore, it is an object of the present invention to provide a safe, easy-to-handle, and relatively inexpensive electric heating sheet that can meet such demands, and an electric heating unit using the same.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a heat insulating material, a heat diffusion aluminum sheet, a lower insulating sheet, and a silk screen printed conductive material on the lower insulating sheet are arranged in this order from the bottom. Material,
An electric heating sheet formed by stacking a bus bar for supplying power to the conductive material and an upper insulating sheet, and a lower insulating sheet.
A conductive material is printed on the screen by silk screen printing, a bus bar for supplying power to the conductive material is arranged thereon, and then an upper heating sheet is laminated to provide an electric heating sheet. Hold a space on the top to block the surroundings, and
The above problem is solved by an electric heating unit characterized in that the space is made into a warm air chamber by fixing the space.

[0005]

[Operation] The conductive material used as a heat source is a semiconductor screen-printed on the lower insulating sheet, and the upper insulating sheet is covered and hermetically sealed to hold it firmly. To be done. An aluminum sheet is placed under the lower insulating sheet to evenly dissipate the heat throughout the sheet. The bottom layer of insulation is
Prevent heat dissipation. In the electric heating unit using the electric heating sheet, the warm air is confined in the warm air chamber, and the upper surface board is efficiently warmed.

[0006]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of an electric heating sheet according to the present invention, which includes a heat insulating material 1, an aluminum sheet 2, a lower insulating sheet 3, a conductive material 4, a bus bar 5, and an upper insulating layer in order from the bottom. It is formed by stacking sheets 6.

The heat insulating material 1 is, for example, 3 mm thick.
A foamed polyethylene sheet having a size of torr is used. An aluminum sheet 2 is attached on the heat insulating material 1 via an adhesive or a double-sided adhesive tape. This aluminum sheet 2 shields heat.
It serves to evenly disperse over the entire surface.

The lower insulating sheet 3 is, for example, a polyester sheet having a thickness of about 0.1 mm, and a conductive material 4 which is a semiconductor stripe serving as a heat generating material is fixed on the surface thereof. The conductive material 4 is usually formed by silk screen printing using conductive graphite ink. Conductive material 4
Is an electrode line 7 provided on both sides, an electrode line 7,
It is composed of a large number of heating lines 8 connecting 7 to each other.
The heating line 8 preferably has a zigzag shape.

Bus bars 5 and 5 are copper plates for power supply which are connected to a power supply, and are arranged so as to be in contact with the electrode lines 7 and 7. The degree of bonding between the bus bar 5 and the electrode line 7 is
When the layers are bonded and then naturally cooled after being heated, the lower insulating sheet 3 is cooled and shrunk to be further strengthened. Further, since there is a sufficient space outside the electrode line 7 and the bus bar 5 and the lower insulating sheet 3 and the upper insulating sheet 6 are sufficiently and surely adhered to each other, the conductive material 4 and the bus bar 5 are made. 5 is held tightly and tightly. The upper insulating sheet 6 is made of the same material as the lower insulating sheet 3.

FIG. 2 shows an example of a structure in which the electric heating sheet 10 according to the present invention is used for floor heating. Reference numeral 11 is a Daihiki in which a heat insulating material is provided, and 12 is a Daihiki 11. The joists to be assembled, 13 is a base floor material laid on the joist 12, and 14 is a small joist installed on the base floor material 13. Electric heating sheet 10
Are arranged between the small joists 14 on the base floor material 13. 15 is a heat resistant flooring.

The electric heating sheet 10 can be widely used not only for floor heating, but also as a heat source for hot carpets, greenhouses, heat insulation containers, irons and other various equipment and facilities.

3 and 4 show an example of the construction of a floor heating unit using the electric heating sheet 10. The unit shown is a plane rectangle, and in the drawing, 21 is a thin lower surface particle board, on which a heat insulating material 22 made of foamed plastic or the like is placed. The heat insulating material 22 is preferably adhered to the lower surface particle board 21. A frame material 23 is fixed on both sides of the heat insulating material 22 on the long side, and a spacer 24 is fixed on the frame material 23. Frame material 2
Reference numeral 3 is for holding the heat insulating material 22, and spacer 24 is for forming a warming chamber 25 described later inside.

Although the electrothermal sheet 10 is fixed on the heat insulating material 22, the electrothermal sheet 10 used in this embodiment may lack the aluminum sheet 2 and / or the heat insulating material 1. . Reference numeral 27 denotes a thick upper surface particle board fixed on the spacer 24, which is normally projected outward from the spacer 24.

The end faces of the units on the shorter side are the upper and lower parts.
End cover 28 made of the same material as the chicle boards 21 and 27
Is blocked by. That is, the end cover 28 is fixed to the end surfaces of the lower surface particle board 21, the heat insulating material 22, the frame material 23, and the spacer 24. Thus, the electric heating sheet 10, the spacer 24, the end cover 28 and the upper surface pad.
A warm air chamber 25 surrounded by the chicle board 27 is formed.
On both sides of the end cover 28, the power plug outlet holes 2
9 is formed.

In the case of this embodiment, in short, a shallow box type is formed by the frame material 23, the spacer 24, both end covers 28 and the lower surface particle board 21, and the warm air chamber 25 is provided inside. Is generated, for example, a frame
The bar material 23 and the spacer 24 may be a single body,
Further, the heat insulating material 22 may be omitted.

Reference numeral 30 denotes a support, on which a portion projecting to the outside of the upper surface particle board 27 can be mounted and fixed so that the units can be arranged side by side. Connected. Regarding the unit located at the end as shown in FIG. 3, the outer end of the unit is supported by the occluding member 31.

According to the above unit, the electrothermal sheet 1
The air warmed by 0 is confined in the warm air chamber 25 and efficiently heats the upper surface particle board 27.
This unit is suitable for use in floor heating equipment.

[0018]

INDUSTRIAL APPLICABILITY As described above, the present invention has a simple structure and can be supplied at a low cost, and can be widely and easily used as a floor heating, a hot carpet, and various other heat sources. The heat generating part is silk screen printed on the insulating sheet and sealed and firmly held by the insulating sheet, so it is thin overall, resistant to moisture, safe and easy to handle. The provided aluminum sheet has an effect that heat can be diffused uniformly throughout the electrothermal sheet. When this electric heating sheet is unitized, it is easy to handle and install, and there is an effect that a floor heating system with good thermal efficiency can be easily constructed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of an electric heating sheet according to the present invention.

FIG. 2 is a cross-sectional view showing a usage state of the embodiment of the electric heating sheet according to the present invention.

FIG. 3 is a partially cutaway plan view of an embodiment of an electric heating unit according to the present invention.

FIG. 4 is an enlarged cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

 1 Heat Insulation Material 2 Aluminum Sheet 3 Lower Insulation Sheet 4 Conductive Material 5 Busbar 6 Upper Insulation Sheet 7 Electrode Line 8 Heat Generation Line 10 Electric Heat Sheet 21 Lower Surface Board 22 Thermal Insulation Material 23 Frame Material 24 Spacer 25 Warm air chamber 27 Top surface particle board 28 End cover 29 Power plug outlet hole

Claims (3)

[Claims] 1. A heat insulating material and an aluminum sheet for heat diffusion in order from the bottom.
Sheet, a lower insulating sheet, a conductive material printed on the lower insulating sheet by silk screen printing, a bus bar for supplying power to the conductive material, and an upper insulating sheet. -G. 2. An electrothermal method comprising a conductive material being silk-screen printed on a lower insulating sheet, a bus bar for supplying power to the conductive material being arranged thereon, and then an upper insulating sheet being laminated. By providing a sheet, holding the space above the electrothermal sheet to close the periphery, and fixing the board appropriately on the upper surface,
An electric heating unit, wherein the space is a warm air chamber. 3. The electric heating unit according to claim 2, wherein an aluminum sheet for heat diffusion and / or a heat insulating material is arranged on the back surface of the lower insulating sheet.