JPH0695169A - Light-controlling glass window - Google Patents

Abstract

PURPOSE:To color a light-controlling glass window having sliding-type glass windows or to erase the color not only when the window is closed but when the window is open. CONSTITUTION:Light-controlling glass is used for glass doors 1, 2 of a book shelf, display shelf, etc., so that the inside of the shelf can be seen or not seen and the shelf is used as a practical and ornamental furniture. The light- controlling glass window having an electrochromic element which constitutes the light-controlling glass is connected to the window frame with slide-type electrodes. Even when the window is open, the glass can be colored or the color is erased without closing the window.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a light control glass window,
More specifically, the present invention relates to a light control glass window configured by an electrochromic element and capable of being colored and erased even when the window is open, and particularly to furniture such as a bookshelf having such a light control glass window.

[0002]

It is known to use an electrochromic device as a light control glass. For example, it is used for automobile windows, rearview mirrors, and even building window glass so that the inside cannot be seen from the outside but the inside can be seen. It is used to reduce the amount of transmitted light and reflected light when the amount of light from the outside is small. Such a light control glass window is fixed to the window frame and current is collected through the window frame or through a lead fixedly attached to the light control glass window.

[0003]

However, although there is no problem in the current collecting method in the fixed window as described above or the window to be housed in the vehicle body (wall) like an automobile, the type of the sliding type opening and closing is available. The problem is how to collect electricity at windows. Briefly, it is considered that the contact between the window and the window frame when the window is closed is used to energize the window frame to drive the electrochromic element to perform coloring and decoloring.
However, this is inconvenient because the window must be closed for coloring and erasing. Therefore, the present invention is a dimming glass window capable of driving an electrochromic element to perform coloring and erasing, more specifically, even when the window is opened, regardless of the opening / closing state of the sliding window. The purpose is to provide.

[0004]

In order to achieve the above object, the present invention provides a dimming glass window provided with an electrochromic element in a sliding glass window, regardless of whether the glass window is open or closed. Provided is a light control glass window provided with a slide-type electrode capable of collecting current.
Although the present invention relates to a sliding glass window, it is particularly applicable to home and office furniture such as bookshelves, display shelves, and document shelves. In these furnitures, by using a light control glass window, it is possible to make a decorative glass type that can be colored when it is not desired to see the contents and can be erased when the contents can be seen even when the window is closed.

In the sliding type current collecting method of the glass window and the window frame, typically, electrical contacts are provided on the upper and lower sides of the glass window, and the upper and lower window frames are used to collect current. The glass window and the lower window frame can naturally come into electrical contact with each other by gravity, and the glass window and the upper window frame may collect current through, for example, a brush. By collecting current through the sliding electrodes in this manner, the electrochromic device can be driven even when the glass window is open, and coloring and decoloring can be performed without closing the windows one by one. In particular, in the case of the remote control type, the operator does not need to approach the window portion, so that its effectiveness is great.

A method of forming a glass window as an electrochromic element can be a known method. For example, a transparent conductive film such as ITO and SnO ₂ and an EC electrode (I) (WO ₃ etc.) are formed on glass. And ITO on the glass,
Transparent conductive film such as SnO ₂ and EC electrode (II) (NiO _x , Ir
O _x, Prussian blue, although such as sandwiching the electrolyte solution or a polymer gel electrolyte, such as by dissolving the lithium salt nonaqueous solvent (propylene carbonate can be used while but was formed a viologen), In particular, the solid electrolyte thin film in which the liquid electrolyte is filled in the microporous polymer thin film has no fear of liquid leakage of the liquid electrolyte, high conductivity similar to the liquid electrolyte, high efficiency can be obtained, thin film can be used, It has flexibility and is easy to stick to glass, and is most suitable for application to the window glass of the present invention.In the above case, as a microporous polymer film used as a solid electrolyte film Is an average molecular weight of 500,000 or more, average pore diameter 0.001 to 0.1μ
m, porosity 40 to 90%, thick film 0.1 to 50 μm polyolefin film, especially polyethylene film is effective, for example, low molecular weight polyethylene glycol and alkali metal salt such as lithium trifluoromethanesulfonate in the pores. The present invention is constituted as a substantially solid electrolyte membrane that exhibits high ionic conductivity and mechanical strength by filling and fixing an electrolyte solution obtained by adding a solvent such as propylene carbonate to the composite of It can be effectively used for electrochromic devices. In the present invention,
In addition to glass, glass windows are intended to include synthetic resin products such as transparent acrylic resin plates.

[0007]

Since the sliding type electrode is provided for the glass window, the electrochromic element can be driven and colored and decolored at any time regardless of the open / closed state of the glass window. It becomes unnecessary.

[0008]

Embodiments will be described with reference to the drawings. Figure 1 shows a display shelf
The glass windows of the sliding glass doors 1 and 2 on the front surface are configured as electrochromic elements. The electrochromic element allows the glass part to change, for example, between blue and colorless and transparent, so normally the contents should be visible as colorless and transparent, and should be changed to blue when you want to hide the contents such as visitors. You can make the contents invisible, or, on the contrary, make them normally blue so that the contents cannot be seen, and make them transparent and colorless so that you can see the contents only when you want to see the contents.

FIG. 2 shows the glass door 1 (2). Electrodes 3 and 4 made of, for example, stainless steel plates are provided above and below the glass constituting the electrochromic device having the structure described in FIG. When the glass door 1 (2) itself has a frame for glass, the electrode can be formed by using the frame. Figure 3 shows such a glass door 1 (2)
The sliding type electrode (contact point) of the window frame portion will be described. The sliding type electrode (contact point) 5 is always in contact with the lower electrode 3 of the glass door 1 (2). On the other hand, although not shown, there is a similar slide type electrode (contact) 6 above the glass door 1 (2), but this is the glass door 1
Since it does not always come into contact with the electrode (contact) 6 by its own weight (2), for example, the glass door 1 (2) or the electrode (contact)
6 is provided with a brush type contact.

FIG. 4 is an electric device which can be used for the display cabinet of FIG.
An example of a cross-sectional structure of a trochromic element is shown. Gala from below
Plate 11, transparent conductive film 12, electrode II 13, solid electrolyte membrane 14, electrode
The electrode I15, the transparent conductive film 16, and the glass plate 17 are laminated in this order.
It The glass plate 11 may be a transparent resin plate. Transparent conductive film 12,1
4 is a collector electrode, which is indium tin oxide (ITO), tin oxide
And so on. As the solid electrolyte membrane 14, for example,
The one prepared as described above is used. For example, polyethylene
Polyethylene glycol monoether in the microporous membrane
Lithium trifluoromethanesulfonate as electrolyte
It is impregnated with an electrolyte solution in which
m, ionic conductivity 2 x 10^-FourIt has the characteristic of S / cm. Electric
Pole I15 is a cathodic material that is reduced and colored
There are two types of anodic materials, but here are typical ones.
WO which is a simple reducing material₃To use. WO₃Is H from the electrolyte
⁺(Li⁺) And when the electrons from the power supply are injected WO₃(Transparent
Ming) + H⁺＋ xe and H_xWO₃Reversible reaction with (blue)
U This reaction is reversible, but H_xWO ₃ Power in the state of
When the circuit is opened, the blue color (reduction state) is retained for a long time.
It The electrode II13 is an oxidation coloring type electrode material such as IrO._XNa
Use of which increases the coloring efficiency. Also for electrode II13
WOs with different crystal states₃ May be used. This electro
The chromic element is 1.3-1. Between the electrode I15 and the electrode II13.
It is driven by applying a voltage of about 6 V, and is blue and colorless and transparent.
It works as a variable light control glass between.

[0011]

According to the present invention, in a light control glass window having a sliding door, the electrochromic element can be driven and colored or erased as it is, regardless of whether the glass window is open or closed. There is an effect that can be done.

[Brief description of drawings]

FIG. 1 is a perspective view of a display shelf according to an embodiment.

FIG. 2 is a plan view showing an electrode configuration of a light control glass window.

FIG. 3 is a perspective view showing an electrode configuration of a sliding window frame portion that receives a light control glass window.

FIG. 4 is a schematic cross-sectional view of an electrochromic device.

[Explanation of symbols]

 1, 2-glass door 3, 4-window electrode 6-window frame electrode 11-glass plate 12-transparent conductive film 13-electrode II 14-solid electrolyte membrane 15-electrode I 16-transparent conductive film 16 17- Glass plate

Claims (1)

[Claims] 1. A dimming glass window in which an electrochromic element is provided in a sliding glass window, wherein the glass window is provided with a sliding electrode capable of collecting current regardless of the opened / closed state of the window. Dimmable glass window.