JPH0231500A - Electromagnetic shielding window - Google Patents

Abstract

PURPOSE:To eliminate a danger that a connection part is stripped off by rain water or wind pressure and that electromagnetic shielding performance is deteriorated by a method wherein a part used to fix a curl-springing part is pressure- bonded by using a pressure edge pressing a glass and by using a screw. CONSTITUTION:A conductive net 3 constituting a conductive material built in a shielding glass 2 is projected to the outside from a peripheral edge of the shielding glass 2. Then, this projected part is fixed at one end part of a metal foil 4 as shown by A. A cushion material 5 and an inner pressure edge 6 are piled up on the part A used to fix the curl-springing part; the part is fixed to a sash 1 by using a finely pitched screw 7. In addition, the other end part of the metal foil 4 is attached to an outside face of a shielding layer 10 arranged on an inside face of the sash 1; it is fixed to the sash 1 by using a pressure plate 11 and a finely pitched screw 12.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is an electromagnetic shielding window that can be used as a viewing window in an electromagnetically shielded room, or as an external window of a building that requires electromagnetic shielding performance such as a highly information-oriented office building. This is related to.

(Prior art) As shown in Fig. 3, a conventional '1f magnetic shield window of this type has a conductive net (b) sandwiched between the front and back interlayer films (a) (a). A commercially available electromagnetic shield window constructed by fitting the ends of the front and back window glasses (C) into a copper frame (e) with a grooved cross section via a conductive seal (d), or Disclosed in Japanese Patent No. 62-112881, conductive paint is applied to the outer surface of the edge of a window glass (b) having an intermediate electromagnetic shielding layer (f), and the same end is coated with conductive rubber (c). An example is one that is attached to the sash (i) through a sash (see Fig. 4).

(Problem to be Solved by the Invention) As is well known, the problem with electromagnetic shielding is that its performance is greatly influenced by the configuration of the connecting portion of the shielding material.

However, in the conventional electromagnetic shielding window, there is not a sufficient contact surface between the conductive material in the window glass and the sash or frame.

Therefore, when the wind blows, the glass moves and the contact surface floats.
Adversely affects tm shield performance.

Furthermore, if there is a material such as conductive paint or caulk between the conductive material and the sash or frame, the shielding performance of these materials has frequency characteristics.
This causes a reduction in shielding performance, and the presence of various materials in between reduces the reliability of electromagnetic shielding performance.

The present invention was proposed in view of the problems of the prior art, and its purpose is to provide reliable and effective electrical conduction between the electromagnetic shielding layer of electromagnetic shielding glass and the electromagnetic shielding layer of the shield room. An object of the present invention is to provide an electromagnetic shielding window having a window frame structure.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the electromagnetic shielding window according to the present invention has a conductive material within the shield glass that protrudes outward from the periphery of the glass, and a protrusion of the conductive material. The part is wrapped around one end of the metal foil to make a sash, and the same rolled part is fixed to the sash via a sash and a screw, and the other end of the metal foil is attached to the inside of the sash. The metal foil is attached to the peripheral shield layer, and the shield layer and the other end of the metal foil are fixed to the sash via a pressing plate and screws.

(Function) As described above, in the present invention, since the outer protrusion of the periphery of the conductive material in the shield glass is wrapped around one end of the metal foil, the two have a sufficient contact area. Thus, the conductive material is connected to the sash through the winding stopper part and the metal foil is securely connected to the sash through the winding stopper part and the metal foil. , there is no risk of the connection part floating due to wind, etc.

Furthermore, the other end of the metal foil, whose one end is wrapped around the conductive material and secured to the conductive material, is fixed to the sash together with a peripheral shield layer attached to the inside of the sash via a ridge and a screw. , the metal foil is securely attached to the peripheral shield, and as described above, the winding stopper part of the conductive material and the metal foil is attached to the sash via the ridge and screws. Together with this, it is possible to ensure electrical continuity between the conductive material of the shield glass and the shield surface of the shield room through the most reliable metal foil without soldering.

(Example) The present invention will be described below with reference to the illustrated embodiments.

(1) is a sash, (2) is a shield glass, and a conductive net (3) constituting a conductive material built into the shield glass (2) is made to protrude outside from the periphery of the shield glass (2). , connect this protrusion with one end of the metal foil (4) (A
) as shown in Figure 3.
), layer the cushioning material (5) and the inner press edge (6), and fix it to the sash (1) with screws (7) at fine pitches.

Note that other conductive materials such as a conductive film may be used instead of the metal foil (4) depending on the required performance.

(8) and (9) in the figure are the shield glass (2) and the inner rim (
6) and the caulking interposed between the sash (1).

Further, the other end of the metal foil (3) is attached to the outer surface of the shield layer OI disposed on the inner surface of the sash (1), and is attached to a push plate (I+) and screws (
It is fixed to Satsushi (1) at +21.

The illustrated embodiment is configured as described above, so that the shield layer 00 → metal foil (4) → conductive net (3),
Ensures conduction with minimal intermediary material.

Fig. 2 shows an embodiment in which the present invention is applied to an external window, in which an electromagnetic shielding surface is constructed in the same manner as in the previous embodiment, and the side is an external window where the shielding glass (2) is fixed to the sash (1). The raised edge (+41051 is cushion material, Oe is caulking, and the same reference numerals are given to the same parts as in the above example in the map.

Note that the metal Fi! i (4) and the push plate (10) may be soldered in advance at the factory.

(Effects of the Invention) According to the present invention, as described above, the outer protrusion of the conductive material in the shielding glass from the peripheral edge of the glass is wrapped with one end of the metal foil to prevent the winding from flying. The conductive material and the metal foil are connected with a wide contact surface by further pressing the glass with the presser edge and the screw, and the conductive material and the metal foil are firmly attached to the sash. Coupled with the fact that the other end is fixed to the peripheral shield layer attached to the inside of the sash via a push plate and screws, the intermediary material is minimized by connecting the shield layer → metal foil → conductive material. In this state, the shielding glass is connected to the sash and the surrounding shielding layer without impairing conductivity, and there is no fear that the connected portion will peel off due to rainwater or wind pressure or that the electromagnetic shielding performance will deteriorate.

Furthermore, according to the present invention, the structure can be simplified by making the rim for attaching the glass also serve as a member for fixing the sash of the part for preventing the winding of the conductive material and the metal foil.

[Brief explanation of the drawing]

1 and 2 are longitudinal sectional views showing respective embodiments of an electromagnetic shielding window according to the present invention, and FIGS. 3 and 4 are longitudinal sectional views of conventional electromagnetic shielding windows, respectively. (1) - Satsushi (2) - Electromagnetic shield window (3
) - Conductive net (4) - Metal foil (6) - Inner rim (7) - Screw 00 - Shield layer
0 Ku Bis 0 conflict... Outer press edge (A)
・Rolling seam stopper diagram 1 Atsushi 2nd prisoner

Claims (1)

[Claims] The conductive material inside the shield glass is made to protrude outward from the periphery of the glass, the protruding part of the conductive material is wrapped around one end of metal foil, and the rolled flap part is secured with a lug and a screw. and fixing the metal foil to a sash, and attaching the other end of the metal foil to a peripheral shield layer attached to the inside of the sash,
An electromagnetic shielding window characterized in that the other end of the shield layer and the metal foil is fixed to the sash via a push plate and a screw.