JPH0525031Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of double glass used for soundproofing and heat insulation.

[Prior art] Conventional double-glazed glass is formed by arranging a pair of glasses to face each other with a gap between them, and sealing the edges of the glasses. If necessary, the space between the pair of glasses is dried with a desiccant. It was hot.

[Problems to be solved by the invention] In the conventional example described above, dew condensation does not occur easily due to the heat insulation properties, but dew condensation sometimes occurs when the temperature difference is large.

The present invention has been developed in view of the above points, and the purpose of the present invention is to prevent dew condensation by generating heat by energizing the conductive film.
Another object of the present invention is to provide double-glazed glass that can improve security against glass breakage and prevent the glass from scattering even if it is broken.

[Means for solving the problem] In order to achieve the above purpose, the double glazing of the present invention has the following features:
A conductive film 2 is pasted on the inner surfaces of a pair of glasses 1a and 1b, and a power supply circuit for generating heat by electricity is connected to both sides of the conductive film 2 of one glass 1b. An alarm power supply circuit including a power supply 7b and an alarm device 8 arranged in series was connected between the conductive films 2.

[Function] With the above configuration, it is possible to generate heat by energizing at least one of the conductive films 2 to prevent condensation, and when the pair of conductive films 2 come into contact, the alarm device 8 is energized. An alarm can be issued when the glasses 1a and 1b are broken.

[Example] A pair of glasses 1a and 1b are arranged to face each other with a gap between them, and a conductive film 2 is pasted over the entire surface of the opposing inner surfaces of each glass 1a and 1b. Copper foil 3 is pasted on the conductive film 2 at appropriate locations around the conductive film 2, and lead wires 4 are connected to the copper foil 3 by soldering. A spacer 5 is interposed between the peripheries of the pair of glasses 1a and 1b, and a sealing material 9 such as butyl rubber is filled in the periphery to seal the space between the pair of glasses 1. The spacer 5 is made of synthetic resin and has a hollow cylindrical shape.
A switch 6a and a power source 7a are interposed between lead wires 4a and 4b led out from both sides of the glass 1b on the indoor side. That is, power supply circuits for heat generation are connected to both sides of the conductive film 2 of the glass 1b.
A switch 6b, a power source 7b, and an alarm device 8 are interposed between the lead wire 4a and the lead wire 4c led out from the outdoor glass la. That is, an alarm power supply circuit is connected to the conductive film 2 of the glasses 1a and 1b. When the switch 6a is turned on, the conductive film 2 on the glass 1b side is energized and generates heat, thereby preventing dew condensation. Further, if the glass 1a or the glass 1b is broken and the conductive film 2 of the glass 1a or 1b is connected with the switch 6b being turned on, the alarm device 8 is activated and an alarm is issued.

[Effects of the invention] As described above, the present invention has a conductive film attached to the inner surface of the glass, and a power supply circuit for generating heat by energization is connected to both sides of the conductive film of the glass. By applying electricity to the film, it generates heat and prevents condensation.
In addition, since condensation can be prevented, there is no need to install a desiccant in the spacer to dry the space between the pair of glasses.Also, a conductive film is pasted on the inner surface of the pair of glasses, and one of the glasses is A power supply circuit for generating heat by energizing is connected to both sides of the conductive film, and a power supply circuit for alarm, which has a power supply and an alarm device arranged in series, is connected between a pair of glass conductive films. By energizing the power supply circuit for heat generation, one conductive film can be energized to generate heat and prevent condensation, and on the other hand, by energizing the power supply circuit for alarm, the glass can break and the conductive films of the pair of glasses can be prevented. It is a device that can be made to energize and issue an alarm when it comes into contact with double-paned glass, and can easily be provided with functions to prevent condensation and crime prevention. It is an economical device that generates an alarm when the conductive film of the glass comes into contact with the glass, and it is only energized when the glass breaks, consuming almost no electricity.
Furthermore, even if the glass breaks due to a light impact, the film can be applied to prevent the glass from shattering.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway sectional view of an embodiment of the present invention.
FIG. 2 is an explanatory diagram illustrating the state in which electricity is applied to the same conductive film, in which 1a and 1b are glass,
2 is a conductive film.

Claims (1)

[Scope of utility model registration request] In double glazing, in which a pair of glasses are arranged facing each other with a gap between them and the edges of the glass are sealed, a conductive film is pasted on the inner surface of the pair of glasses, and the conductive film of one glass is A power supply circuit that generates heat by energizing is connected to both sides, and between a pair of glass conductive films,
Double glazing made by connecting an alarm power supply circuit with a power supply and an alarm device arranged in series.