JP2000191347A - Insulating part structure of double layer glass having exothermic function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide double layer glass having an exothermic function of an easy structure at the time of installation to an aperture of a building without the impairment of the intrinsic functional role of spacers, such as assurance of moistureproofness. SOLUTION: The exothermic layer 3 of the double layer glass 1, which is formed by joining at least two sheets of translucent plate materials via the conductive spacers interposed in their peripheral edges and is formed with the exothermic layer on the surface of at least either of the plate materials, is formed with the exothermic layer 3 by extending the exothermic layer between the opposite surfaces of at least the spacers 5 an the plate materials 2. Primary sealing materials 6 mixed with insulators are disposed between the spacers and the exothermic layer. The outer peripheral parts of the spacers are provided with secondary sealing materials 7 not mixed with the insulators. Electrodes 4 for connecting the exothermic layer and a power source are formed into the secondary sealing materials and the optical shielding structure of the sections is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-glazing unit having a heat-generating function and mainly composed of a sheet glass provided with a heat-generating layer, which is mainly used for an opening of a general building. The present invention relates to an insulating seal structure between a spacer and a heat generating layer in a double glass.

[0002]

2. Description of the Related Art Conventionally, in an opening of a building, for example, an air layer is generally provided in the middle of a plate material in terms of heat insulation and sound insulation. Specifically, an air layer is formed in a dry state between the glass on the indoor side and the glass on the outdoor side to reduce the flow of heat for each layer. In addition to the above, sound insulation is obtained. In addition, there is also known one in which a special metal film is coated on the inner surface of the outdoor glass to improve heat insulation, and various functions relating to light shielding, such as cutting off ultraviolet rays, are utilized by using characteristics of the metal film.

In addition, the above-described structure merely improves the heat insulating property and does not prevent the so-called cold draft or the like. A multi-layer glass having a heat-generating film capable of generating heat by electric conduction on the surface thereof has been developed.

[Problems to be solved by the invention]

However, in the case of this type of double-glazing, in order to form a structure for generating heat by energization, a heat-generating layer made of a metal material is extended to the edge of the glass in order to secure an electrically conductive portion. However, there is a problem that a short circuit occurs at a contact position with a conductive spacer.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems without impairing the original functional role of the spacer, such as securing moisture proofness. It has characteristic features.

More specifically, at least two translucent plate members are bonded to each other at the peripheral portion thereof via a conductive spacer, and a heat generating layer is formed on one of the plate members surrounded by the spacer. In the above, the heat generating layer is formed so as to extend at least on the opposing surface of the spacer and the plate material, and a primary sealing material mixed with an insulator is disposed between the spacer and the heat generating layer. Is characterized by providing a secondary sealing material in which an insulator is not mixed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an enlarged sectional view of a main part for explaining a double glazing 1 of the present invention. As shown in the figure, this double-glazed glass 1 is made of a translucent plate material 2 such as float glass, netted glass, colored glass, or decorative glass in which the surface of such glass is scratched.
The heat generating layer 3 is formed on the plate 2.

The heat generating layer 3 is made of one or more metal thin films selected from the group consisting of gold, silver, copper, palladium, aluminum, titanium, stainless steel, nickel, cobalt, chromium, iron, magnesium, zirconia, gallium and the like. And / or a metal oxide thin film of carbon, oxygen or the like, preferably Pd, Pt, Sn, Zn, In, C
Metal oxide provided with a thin film of Ag or the like added with at least one element from the group consisting of r, Ti, Si, Zr, Nb, and Ta, and a polycrystalline base thin film of ZnO, ITO, In2O3, Y2O3, etc. Thin film or polyester resin such as polyethylene terephthalate, polyethylene-2.6-naphthalate, polybutylene terephthalate, polycarbonate resin, polyolefin resin such as polyketone, polyethylene, polypropylene, polyvinyl chloride, polystyrene polyphenylene oxide, polymethyl methacrylate , A heat ray reflective film in which the above-mentioned metal thin film is formed on a film or sheet of a cellulose resin such as polystyrene or a polyamide resin, a polyimide resin, cellophane or cellulose triacetate.

These heat generating layers 3 are composed of the plate 2 and the spacers 5.
, And generate heat when energized and heated through the electrode 4.

The spacer 5 is disposed on the outer peripheral edge between the two plate members 2.2. The contact portion between the spacer 5 and the heat generating layer 3 on the plate member 2 has a slightly flat surface portion and the outer peripheral edge side. Has a tapered appearance. This shape is suitable for securing the moisture-proof property in the air layer formed between the plate materials 2.2, and the primary sealing material 6 is provided on the flat surface of the spacer 5 and on the tapered outer peripheral side. The secondary sealing material 7 is provided and sealed.

Since the spacer 5 is made of a conductive material such as aluminum, the heat generating layer 3 and the spacer 5 are not filled with a general resin adhesive due to sealing unevenness.
And a short-circuit phenomenon occurs. Therefore, in the present invention, an insulating material is previously mixed into the primary sealing material 6 so that the heating layer 3 and the spacer 5 can be completely insulated electrically.

The electrode 4 is formed at the end of the plate member 2 in the secondary sealing material 6 on the outer peripheral edge side by utilizing the above structure, thereby simplifying the configuration for electrical connection with an external power supply. It is possible to make it.

FIG. 2 is a schematic view of a second embodiment of the present invention showing a state in which a double glazing is disposed in an opening of a building. This embodiment is mainly an embodiment for preventing the deterioration of the electrode due to ultraviolet rays. In the above structure of the present invention, since the electrode 4 is provided in the secondary sealing material 6 which is an organic material, deterioration is easily caused by transmission of ultraviolet rays.

In the present invention, in order to avoid these phenomena, an optical shielding structure is formed at the site. Specifically, the electrode 4 is arranged in the recess of the sash 10, and direct ultraviolet transmission to the electrode 4 is prevented in the frame portion of the sash 10.

The plate member 2 configured as described above has an excellent heat insulating effect by being bonded via an air layer or an intermediate layer of a resin layer, for example. With such a configuration, the atmosphere in the air layer heated by energization of the heat generating layer 3 can heat the surface of the plate member 2 to smoothly warm the indoor atmosphere.

As described above, the double glazing of the present invention prevents short circuit at the contact position between the heat generating layer and the conductive spacer by improving the sealing material and the arrangement of the electrodes. Therefore, it is possible to provide a double-glazed glass having a heat generating function with a structure that is easy to be applied to the opening of a building without impairing the original functional role of the spacer such as securing moisture resistance. did it.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a main part for describing a double glazing according to a first embodiment of the present invention.

FIG. 2 is a schematic view showing a state in which a double glazing is disposed in an opening of a building according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Double glass 2 Plate material 3 Heat generation layer 4 Electrode 5 Spacer 6 Primary seal material 7 Secondary seal material 8 Seal material 9 Setting block 10 Sash

Continuing from the front page (72) Katsuhiko Ochiai, Inventor, 2-27-11 Shiba, Minato-ku, Tokyo Inside Figura Co., Ltd. (72) Inventor Kageshi 2-27-11, Shiba, Minato-ku, Tokyo Figura Co., Ltd. In-house (72) Inventor Takeshi Okuno 2-27-11 Shiba, Minato-ku, Tokyo F-Gla F-term (reference) 3K034 AA02 AA03 AA05 AA15 BB05 BB14 BC12 CA04 CA15 CA32 EA15 FA03 FA05 FA39 GA03 GA08 HA01 4G059 AA01 AC13 AC14 GA01 4G061 AA30 BA01 CB02 CB03 CB14 CD02 CD22 CD25 CD25

Claims (3)

[Claims] 1. A double-layer glass having at least two light-transmissive plate members bonded to a peripheral portion thereof via a conductive spacer and having a heat generating layer formed on one of the plate members surrounded by the spacer. , Wherein the heat generating layer is formed so as to extend at least between opposing surfaces of the spacer and the plate material, and a primary sealing material mixed with an insulator is disposed between the spacer and the heat generating layer. An insulating part structure in a double glazing having a heat generating function. 2. The insulating part structure in a double-glazing unit having a heat generating function according to claim 1, wherein a secondary sealing material in which an insulator is not mixed is provided on an outer peripheral part of the spacer. . 3. The heat generating function according to claim 2, wherein an electrode for connecting the heat generating layer and a power source is formed in the secondary sealing material, and an optical shielding structure of the portion is formed. The insulating part structure in the double glazing having the following.