JP2000283482A - Laminate having heating function and structure for taking out electrode part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a planar heater suitable as a hard material for building, and the like, in which excellent appearance and durability are imparted by employing a ringlike member in the electrode part take-out structure and excellent heat resistance, chemical resistance, temperature distribution uniformity and long term stability are imparted by employing a sheet member. SOLUTION: The laminate comprises sheet members 1a, 1b at least having flexibility, a plurality of first stripe conductive members 2 formed on the surface of the sheet member along a specified direction at a specified interval, and second stripe conductive members 3 formed on the first conductive members by bridging them, wherein respective members are secured by a stitching part 5 formed along the length direction of the second conductive members. The laminate is provided, at an appropriate part on the conductive member, with a window for exposing the conductive member and an annular member having a wiring part 7a comprising grooves or holes for passing lead wires is formed on the sheet member while surrounding the window 6 in order to take out the electrode part by filling it with adhesive.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated body having a heat generating function provided with a heat generating layer that generates heat when energized. The present invention relates to a laminate having a heat generating function that can be used after being deformed.

[0002]

2. Description of the Related Art Conventionally, various planar heating elements have been known. For example, a heating element composed of a metal foil and a temperature detection line are arranged side by side, and a low-melting resin layer is formed on both surfaces thereof, and then a high-melting insulating film is provided on both surfaces thereof. A conductive material adjusted to the required resistance value is printed on a conductive substrate to form a heating section, and a conductive sheet similarly adjusted to the required resistance value is formed on a resin sheet, which is a non-conductive material. Heat-generating portions formed by printing a material to give flexibility are known, and these are used as heater elements of heating appliances.

[0003]

However, since the above-mentioned sheet heating element mainly performs processes such as printing,
There is a problem in that a load is applied to the equipment, and as a result, the manufacturing cost increases. Further, for architectural uses and the like, a certain amount of hard material is required while ensuring flexibility, but such a planar heating element has not been known.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a laminate having a flexible heat generating function which can be manufactured at a low cost with a simple structure while maintaining characteristics such as uniform heat generation. As well as an extraction structure of the electrode portion.

[0005]

In order to achieve the above object, a laminated body having a heat generating function according to the present invention comprises a sheet member having at least a flexibility and a predetermined direction on a surface of the sheet member along a predetermined direction. A plurality of first formed at intervals of
And a second belt-shaped conductive member formed by bridging each conductive member on the conductive member, and forming each member along the length direction of the second conductive member. It is characterized by being fixed by a sewn portion.

[0006]

FIG. 1 is an overall view showing a laminate having a heat generating function according to a first embodiment of the present invention, and FIG. 2 is a laminate having a heat generating function according to a second embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of a laminated body having a heat generating function according to a second embodiment of the present invention, and FIG. 4 is an extraction structure of an electrode portion of the laminated body having a heat generating function of the present invention. FIG. 5 is an enlarged view of a main part showing another example of a structure for taking out an electrode part of a laminated body having a heat generating function of the present invention;
FIG. 6 is an external view showing a laminate having a heat generating function according to a third embodiment of the present invention.

The laminate 1 of the present invention has a heating function and flexibility, so that it can be used for floor heating and wall heating in buildings and offices, and in homes, wall heating, kitchen mats and tatami heaters. Or, clothing such as heating vests, seat heaters, vehicle applications such as battery insulation, water pipes, water storage tank heaters, parking lots, sidewalks, hallways, road sign heaters, roof snow melting, signal lights, points, railroad crossings Heaters, bed heaters, heaters for promoting plant growth and germination, heaters for horticultural soil, poultry raising, heaters for pig farms, for promoting fermentation, for keeping foods warm, etc. A sheet member having flexibility, a plurality of first strip-shaped conductive members 2 formed on the surface of the sheet member along a predetermined direction and at predetermined intervals, and Second which is formed by bridging the conductive member
Each of the members is a laminate 1 fixed by a sewing portion 5 formed along the length direction of the second conductive member 2.3.

As shown in FIG. 3, a laminate 1 according to the present invention has two sheet members 1a. 1b has a structure in which a heating layer and an electrode layer are sandwiched between two types of conductive members 2.3.

The first conductive member 2 serving as the heating layer includes:
Gold, silver, copper, palladium, and aluminum, titanium,
One or more metal thin films selected from the group consisting of stainless steel, nickel, cobalt, chromium, iron, magnesium, zirconia, gallium and the like and / or metal oxide thin films thereof such as carbon and oxygen, preferably Pd, Pt , Sn, Z
a thin film of Ag or the like to which at least one element is added from the group consisting of n, In, Cr, Ti, Si, Zr, Nb, and Ta; and a polycrystalline base thin film of ZnO, ITO, In2O3, Y2O3, etc. Metal oxide thin film provided, or polyethylene terephthalate, polyethylene-2.
6-naphthalate, polyester resin such as polybutylene terephthalate, polycarbonate resin, polyketone,
Forming the metal thin film on a film or sheet of a polyolefin resin such as polyethylene, polypropylene, polyvinyl chloride, polystyrene polyphenylene oxide, polymethyl methacrylate, polystyrene, or a polyamide resin, a polyimide resin, cellophane, or a cellulose resin such as cellulose triacetate. As shown in FIGS. 1 and 2, by bonding a tape of conductive carbon formed of a film or the like and printed or formed in a belt shape in advance,
At least one of the sheet members 1a is formed on the entire surface or a part so as to constitute a heat generating surface.

The plurality of conductive members 2 are electrically connected to their ends in a state of being bridged by a second strip-shaped conductive member 3 serving as an electrode layer. The second belt-shaped conductive member 3 serving as the electrode layer is made of a material substantially similar to the material of the first conductive member 2 described above, and is connected to the second conductive member 3 and an external power supply (not shown). The connected lead wire 4 is connected to the bare wire portion 4a, and is electrically heated. The second conductive member 3 may be made of a metal-made adhesive tape and a conductive paste having a lower resistance than the adhesive tape.

Each of the sheet members 1a. 1b is a non-conductive nonwoven fabric, cloth, tetrafluoroethylene resin film, polyester film, fragrance polyimide film, polyetherimide, PVC sheet, EVA sheet,
It is made of a flexible member such as polyetherimide or a resin sheet.

According to the present invention, in each of the layers configured as described above, a plurality of first belt-shaped conductive members 2 serving as heat generating layers are formed on a surface of one sheet member 1a along a predetermined direction. A second belt-shaped conductive member 3 serving as an electrode layer is formed on the first conductive member 2, and further, the other sheet member 1b
Are laminated, and each of the sheet members 1a. 1b is sewn and fixed by a sewing machine or the like so that the welding portion 5 is formed along the length direction of the second conductive member 3 from above. In addition, meeting part 5
The sheet members 1a. 1b is formed over the entire circumference.

[0013] The laminated body 1 having the above-described structure is composed of the sheet members 1a. 1b can be firmly bonded together, and each conductive member 2.3 located at the welding portion 5 can be bonded together.

The other sheet member 1b is provided with a window 6 as an electrode outlet. In the illustrated example, the window portion 6 is provided in advance in a rectangular shape and as a through hole of the sheet member 1b, and the bare wire portion 4a of the lead wire 4 connected to the power supply portion from the window portion 6 and the second Conductive member 3
And connect.

In the embodiment shown in FIG. 2, in addition to the above-described structure, a wiring portion 7 is formed on the sheet member 1a.
The ring-shaped member 7 having a is adhered, and the lead wire 4 passing through the wiring portion 7a is connected. In this embodiment, the connection state of the lead wire 4 is made more stable.

Referring to FIG. 3, the bare wire 4a at the tip of the lead wire 4 is electrically connected to the second conductive member 3 exposed from the window 6 of the sheet member 1a by solder 9 or the like. And the resin agent 8 filled in the ring-shaped member 7
It is fixed by. With this configuration, the bare wire 4a at the tip of the lead wire 4 is securely fixed compared to a simple soldering without applying a tensile load to the lead wire 4 or coming off due to mechanical contact. Things. In addition, the use of the ring-shaped member 7 makes it possible to form the laminate 1 having excellent appearance.

4 to 6 show various embodiments of the ring-shaped member 7. FIG. FIG. 4 shows a case where the wiring portion 7a of the ring-shaped member 7 is formed as a notched groove, and the lead wire 4 having a large diameter is used.
Excellent when using. FIG. 5 shows a case where the wiring portion 7a of the ring-shaped member 7 is formed as a through hole, which is excellent when the lead wire 4 having a small diameter is used. Thus, the wiring portion 7a
Is designed to be changed as needed.

The laminated body 1 having the heat generating function of the present invention formed as described above can be formed in a web shape and a roll shape with a predetermined width and length as shown in FIG. Since one unit of the heating element can be formed by cutting with a suitable tool at a predetermined length position, a plurality of units of the heating element are integrally produced, and cut and used at the time of construction. Has merits.

As described above, according to the present invention, it is possible to manufacture a laminate having a heat generating function with a very simple structure. This laminated body is particularly excellent in appearance and durability due to the use of a ring-shaped member for a structure for extracting an electrode portion. And the laminated body configured as described above uses the above-mentioned sheet member, so it has excellent heat resistance, chemical resistance, uniform temperature distribution, excellent long-term stability, and flexibility. Thus, for example, it can be wound and used, or can be attached to an appropriate curved surface in close contact with a hook-and-loop fastener or a magnet, thereby exhibiting an excellent effect as a heating element.

[Brief description of the drawings]

FIG. 1 is an overall view showing a laminate having a heat generating function according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a laminate having a heat generating function according to a second embodiment of the present invention.

FIG. 3 is a schematic sectional view of a laminate having a heat generating function according to a second embodiment of the present invention.

FIG. 4 is an enlarged view of a main part showing an example of a structure for taking out an electrode part of a laminate having a heat generating function according to the present invention.

FIG. 5 is an enlarged view of a main part showing another example of a structure for taking out an electrode part of a laminate having a heat generating function according to the present invention.

FIG. 6 is an external view showing a laminate having a heat generating function according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminated body 1a Sheet member 1b Sheet member 2 First conductive member 3 Second conductive member 4 Lead wire 4a Bare wire part 5 Adhesion part 6 Window part 7a Wiring part 7 Ring-shaped member

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Ryoichi Shimoda 2-27-11 Shiba, Minato-ku, Tokyo Inside Figura Co., Ltd. (72) Susumu Urasuzawa 2-27-11 Shiba, Minato-ku, Tokyo F-term in Figura Corporation (reference) 3L072 AA01 AB02 AB03 AB10 AC02 AD02 AD10 AD14 AD17 AD19

Claims (7)

[Claims] 1. A sheet member having at least flexibility,
A plurality of first strip-shaped conductive members formed on the surface of the sheet member along a predetermined direction and at predetermined intervals; and a second band-shaped conductive member formed on the conductive member by bridging the respective conductive members. Wherein the respective members are fixed by sewing portions formed along the length direction of the second conductive member. 2. A sheet member having at least flexibility,
A second strip-shaped conductive member formed on the surface of the sheet member along a predetermined direction; and a plurality of first band-shaped conductive members formed on the second conductive member along a predetermined direction and at predetermined intervals. A laminate having a heat-generating function, comprising a belt-shaped conductive member, wherein each of the members is fixed by a sewn portion formed along a length direction of the second conductive member. 3. The laminated body having a heat generating function according to claim 1, wherein a window for exposing the conductive member is formed at an appropriate position on the conductive member of the sheet member. Extraction structure of the electrode part. 4. A laminated body having a heat generating function according to claim 3, wherein a ring-shaped member having a wiring portion comprising a groove or a hole for surrounding the window and passing a lead wire is provided on the sheet member. An extraction structure for an electrode part, which is formed. 5. The laminated body having a heat generating function according to claim 4, wherein the conductive member and the lead wire are inserted into the ring-shaped member in a state where the lead wire passes through a wiring portion from outside the ring-shaped member. An extraction structure for an electrode portion, wherein the electrode portion is fixed by a filled adhesive. 6. A laminate having a heat generating function according to claim 1, wherein said laminate is formed in a web shape.
A laminate having a heat generating function, wherein one unit of the heat generating body is formed by cutting the heat generating body at a predetermined length. 7. A laminate having a heat generating function according to claim 6, wherein said laminate is formed in a roll shape.