JP4892207B2 - Translucent electromagnetic wave shielding plate joining structure and joining tool - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a translucent electromagnetic shielding plate joining structure and a joining tool, and more particularly to a structure and joining tool for electrically joining a translucent electromagnetic shielding plate in which a conductive mesh is sandwiched between a pair of transparent plates.

  2. Description of the Related Art Conventionally, in buildings such as intelligent buildings, there is a demand for the whole or part of the building to be a radio wave shield space. The radio wave shielding space in the building is basically structured to cover the surrounding walls, floors, ceilings, etc. using conductive electromagnetic shielding plates such as metal plates and wire meshes, and when providing windows, between a pair of transparent plates In many cases, a light-transmitting electromagnetic wave shielding plate (hereinafter sometimes referred to as a light-transmitting shield plate) sandwiching a conductive mesh is used. A translucent shield plate using a conductive mesh is not so high in radio wave shielding performance at a high frequency (for example, 1 GHz or more), but has a feature of showing high radio wave shielding performance at a low frequency (for example, 1 GHz or less). As disclosed in Patent Documents 1 and 2, a conductive film having high frequency radio wave shielding performance is sandwiched between a pair of transparent plates together with a conductive mesh to improve radio wave shielding performance in a wide frequency range from low frequency to high frequency. A translucent shield plate has also been developed.

  Recently, EB (Electron Beam) exposure equipment, EB lithography equipment, MRI (Magnetic Resonance Imaging) equipment, NMR (Nuclear Magnetic Resonance, nuclear magnetic resonance) in semiconductor-related facilities and medical facilities. The use of strong magnetic devices such as devices is increasing, and there is an increasing demand for the installation room to be a shield space. The installation room of the strong magnetism utilization device is required to have a magnetic shielding performance as well as a radio wave shielding performance. Therefore, the electromagnetic shielding plate described above is used to cover the surrounding wall surface and the like, and a magnetic plate having a high magnetic permeability is used to surround the surrounding wall surface and the like. It is necessary to have a structure that covers (hereinafter also referred to as a sealed magnetic shield structure). However, the conventional sealed magnetic shield structure has a problem that it is difficult to provide a window for light transmission because the magnetic shield performance is lowered when the opening is provided.

  On the other hand, as shown in FIG. 4A, the present inventors used a group of magnetic plates arranged in a bowl shape (hereinafter referred to as a magnetic shield housing) to provide a magnetic shield structure with a gap (hereinafter referred to as a magnetic shield structure). (It may be referred to as an open type magnetic shield structure.) Was developed and disclosed in Patent Documents 3 and 4. In the illustrated example, the magnetic shield housing 30 includes six strip-shaped magnetic plates 31 having a thickness of 6.3 mm, a width of 50 mm, and a length of 3600 mm, for example, and their longitudinal central axes C are substantially parallel to the same saddle surface F. These are stacked with a distance d = 300 mm in the thickness direction so as to be lined up. Ratio of the product (Sm · μs) of the cross sectional area Sm of each magnetic plate 31 and the relative permeability μs of the magnetic plate 31 to the cross sectional area Sa of the interval d in the thickness direction perpendicular to the length direction of each magnetic plate 31 (Sm · μs / Sa) is selected so that the magnetic flux density in the interval d is sufficiently smaller than the magnetic flux density in the magnetic plate 31. For example, by setting (Sm · μs) / Sa> 1, the ease of passing the magnetic flux in the magnetic plate 31 (permeance of the magnetic plate) is made larger than the ease of passing the magnetic flux in the interval d (permeance of the interval), The magnetic shield density can be given to the magnetic shield housing 30 by reducing the magnetic flux density at the interval d.

  4A appropriately adjusts the ratio (Sm · μs / Sa) of the product of the sectional area Sm of the magnetic plate 31 and the relative permeability μs to the sectional area Sa of the interval d. Thus, an open type magnetic shield structure having both higher magnetic shield performance and translucency than the conventional sealed magnetic shield structure can be obtained. By combining this translucent magnetic shield housing 30 with the above-described translucent shield plate, a space that requires translucent radio wave shielding performance and magnetic shield performance (hereinafter referred to as radio wave / magnetic shield space). Can be built). For example, as shown in FIG. 4B, the magnetic shield housing 30 is laminated so that the flange surface F of the magnetic shield housing 30 and the surface of the translucent shield plate 1 are parallel to each other with an appropriate gap therebetween. And a window or wall having both transparency and translucency.

Japanese Patent Laid-Open No. 10-270891 Japanese Patent Laid-Open No. 10-322083 Japanese Patent No. 3633475 International Publication No. 2004/084603 Pamphlet

  However, as shown in FIG. 4B, in order to construct a translucent radio wave / magnetic shield space by combining the magnetic shield housing 30 and the translucent shield plate 1, the size of the magnetic shield housing 30 It is necessary to match the size of the translucent shield plate 1. The magnetic shield housing 30 can be magnetically connected, for example, by overlapping the edges of the magnetic plates 31, and can be relatively easily adjusted in size by joining in a row in the length direction (Patent Document) 4). On the other hand, the translucent shield plate 1 using the conductive mesh is usually manufactured with general-purpose dimensions (for example, 950 mm × 1500 mm) from the economical and rational viewpoints. Accordingly, it is necessary to adjust the size by electrically joining a plurality of translucent shield plates 1.

  Conventionally, when adjusting the size of the translucent shield plate 1, the conductive mesh of the translucent shield plate 1 is made of other metal mesh made of stainless steel and protrudes from the outer peripheral edge of each translucent shield plate 1. Wire mesh is connected by soldering. However, the wire mesh used for the translucent shield plate 1 has a very fine mesh, so special skills are required for the soldering work, and the soldering work is very troublesome and the joint quality is not stable due to the solder peeling. There is a point. If the bonding quality is unstable, electromagnetic waves leak from the connection part, and the designed radio wave shielding performance cannot be obtained. Furthermore, there is a problem that the connection method by soldering cannot be applied to a non-metallic conductive mesh (for example, a synthetic mesh conductive mesh coated with a conductive material).

  Therefore, an object of the present invention is to provide a joint structure and a joining tool for a light-transmitting electromagnetic wave shield plate that can easily obtain stable joining quality.

Referring to the embodiment of FIGS. 1 and 2, the translucent electromagnetic wave shielding plate joining structure according to the present invention is such that the outer peripheral edge of the conductive mesh 5 protrudes between the pair of transparent plates 2 and 2. A plurality of translucent electromagnetic shielding plates 1 sandwiched are opposed to each other so that the mesh protrusion 6 on the outer peripheral edge is in electrical contact, and one side surface 3 and the opposite side surface 4 of adjacent shield plates 1 (see FIG. 2). ) To a predetermined width w (w ≦ W) provided with ridges and valleys 15 and 16 or fastening portions 17 (see FIGS. 2 and 3). ) And a pair of strip-like joints 10a and 10b are fitted into the opposing gap W of the shield plate 1 and fitted into the opposing gap W, and the mesh protrusion portion of the adjacent shield plate 1 is fitted by the fitting of the end faces 14a and 14b of both joints 10a and 10b. 6 is pressure-bonded in a planar shape.

1 and 2, the translucent electromagnetic wave shielding plate joint according to the present invention is such that the outer peripheral edge of the conductive mesh 5 protrudes between the pair of transparent plates 2 and 2. A joint that joins a plurality of translucent electromagnetic shielding plates 1 sandwiched between them so that the mesh protrusions 6 on the outer periphery are in electrical contact with each other, and is fitted to the end faces 14a and 14b. 15 and 16 or a fastening portion 17 (refer to FIG. 2 or FIG. 3B and FIG. 3C) and shields from the one side surface 3 and the opposite surface 4 (see FIG. 2) of the adjacent shield plate 1 A pair of strip-like joints 10a and 10b having a predetermined width w (w ≦ W) to be fitted into the opposing gap W of the plate 1 is provided, and adjacent to each other by fitting of the end faces 14a and 14b of the joints 10a and 10b. The mesh protrusion 6 of the shield plate 1 is pressed into a planar shape.

  Preferably, as shown in FIG. 3, the strip-shaped joints 10 a and 10 b are respectively strip-shaped shoulder portions 11 a and 11 b that straddle the opposing edge of the one-side surface 3 or 4 of the shield plate 1 and the widths of the strip-shaped shoulder portions 11 a and 11 b. Strip-shaped joints 10a and 10b having a T-shaped cross section having strip-shaped leg portions 12a and 12b having a predetermined width w projecting from the central portion in the direction toward the opposite surface 4 or 3 of the shield plate 1, While the adjacent shield plates 1 are aligned with each other by the belt-shaped shoulder portions 11a and 11b, the mesh protruding portions 6 of the adjacent shield plates 1 are pressed against each other by the butting of the front end surfaces 14a and 14b of the belt-shaped leg portions 12a and 12b.

  More preferably, as shown in FIGS. 2D and 2E, a conductive gasket 18 is provided so as to abut against the end faces 14a and 14b of the joints 10a and 10b. Both joints 10a, 10b are preferably made of metal.

  The joining structure and the joining tool of the translucent electromagnetic wave shield plate (translucent shield plate) according to the present invention are the strip joints 10a and 10b in the opposing gap W of the translucent shield plate 1 which is adjacent to each other with the outer peripheral edges facing each other. And the protruding portion 6 of the conductive mesh 5 of the adjacent translucent shield plate 1 is crimped to each other by butting the tip surfaces 14a and 14b of both joints 10a and 10b. Has a remarkable effect.

(A) The translucent shield plate 1 can be electrically joined by a simple operation of fitting the pair of band-like joints 10a and 10b into the opposing gap W of the translucent shield plate 1 and coupling them together. Even if it is not a special skill person, joining work of translucent shield board 1 becomes possible easily.
(B) The mesh protruding portion 6 of the translucent shield plate 1 can be crimped into a planar shape by abutting the tip surface 14 of the band-shaped connector 10, compared to the conventional point soldering joining method. The stability of bonding quality can be improved.
(C) When a force is applied to the conductive mesh 5 of the translucent shield plate 1 in the direction of drawing out from the transparent plate 2 (parallel to the surface of the transparent plate 2), the conductive mesh 5 is deformed or cut to generate radio waves. Although it causes a reduction in shielding performance, the conductive mesh 5 is pressure-bonded in the direction perpendicular to the surface of the transparent plate 2 with the pair of tip surfaces 14, so that deformation and cutting of the conductive mesh 5 can be suppressed.
(D) By providing the mountain valleys 15 and 16 and the conductive gasket 18 on the front end surface 14 of the belt-like connector 10, the stability of the bonding quality of the conductive mesh 5 is further improved and the displacement of the conductive mesh 5 is prevented. It can be effectively prevented.
(E) The present invention can also be applied to the joining of the translucent shield plate 1 using a non-metallic conductive mesh 5 such as a synthetic fiber coated with a conductive material.
(F) The translucent shield plate 1 that is electrically joined can be disassembled relatively easily, and the disassembled translucent shield plate 1 can be reused.

  FIG. 1 shows an embodiment of a joining structure of a translucent shield plate 1 using a pair of strip-like joints 10a and 10b. The translucent shield plate 1 in the illustrated example has a pair of transparent plates 2 and 2 such as a transparent glass plate, a transparent polycarbonate plate, a transparent acrylic plate, and a transparent polyester plate, which are stacked in the thickness direction. The conductive mesh 5 is sandwiched between the outer peripheral edges so that the outer peripheral edge protrudes, and is vacuum-bonded by an autoclave or the like. The conductive mesh 5 can be made of, for example, a wire mesh such as stainless steel, phosphor bronze, nickel or the like, or a synthetic fiber coated with a conductive material, and the size of the mesh is appropriately set according to the required radio wave shielding performance. Select The fine conductive mesh 5 has a high light reflectivity. However, by performing the blackening treatment, the light reflectivity can be suppressed and the translucency can be enhanced. Further, a plurality of conductive meshes 5 can be sandwiched between the translucent shield plate 1 in accordance with the required radio wave shielding performance, and a conductive film is laminated together with the conductive meshes 5 as disclosed in Patent Documents 1 and 2. It is also possible to sandwich them. Moreover, the shielding property of a radiation can be given to the translucent shield board 1 by making the transparent board 2 and the strip | belt-shaped joints 10a and 10b contain lead.

As shown in FIG. 1, the mesh protruding portions 6 are brought into contact with each other with the outer peripheral edges of a pair of transparent shielding plates 1 facing each other, and the protruding portions 6 are in contact with each other. A pair of band-like connectors 10a and 10b are fitted into the opposing gap W from both sides in the thickness direction so that the front end surfaces 14a and 14b abut each other. As shown in FIG. 2 (B), the front and rear surfaces 14a and 14b of the strip-like connectors 10a and 10b in FIG. Are provided with fastening portions 17 that fit together. After fitting both the joints 10a and 10b into the opposing gap W, an appropriate coupling member (screw etc.) 8 is inserted into the coupling hole (screw hole etc.) 19 of both joints 10a and 10b and tightened in the butting direction. Thus, the contact portion of the protruding portion 6 is pressure-bonded by the front end surfaces 14a and 14b of the two band-like connectors 10a and 10b (see white arrows in FIG. 1).

The band-shaped joints 10a and 10b according to the present invention overlap the mesh protrusions 6 of the pair of light-transmitting shield plates 1 and press-bond them in a planar shape. The electrical joint quality of the protruding portion 6 can be stabilized. For example , as shown in the reference example of FIG. 2A, the width of the mesh protruding portion 6 from the opposing gap W of the translucent shield plate 1 and the outer peripheral edge of the translucent shield plate 1 (projection width). And the opposing gap W and the width w of the band-like joints 10a and 10b are made to coincide with each other, and the entire protruding portion 6 is crimped in a planar shape with the entire width w of the band-like joints 10a and 10b. The width w of the belt-like joints 10a and 10b can be appropriately selected so that stable joining quality can be obtained, but the width w is made as large as possible to reduce the accuracy error when the translucent shield plate 1 is installed. It is desirable to absorb.

  Further, in the band-like joints 10a and 10b of the present invention, the mesh protruding portion 6 is pressure-bonded in the thickness direction of the translucent shield plate 1 (the direction perpendicular to the surface of the transparent plate 2) and pulled out from the transparent plate 2 ( The force in a direction parallel to the surface of the transparent plate 2 can be kept small. When a force to pull out the transparent plate 2 is applied to the protruding portion 6, the conductive mesh 5 sandwiched between the transparent plates 2 is pulled out and is likely to be deformed or cut, and the radio wave shielding performance of the transparent shield plate Cause a drop. For example, as shown in FIG. 2 (A), the height h of each strip-like connector 10a, 10b is made to substantially coincide with the thickness H (see FIG. 1) of the transparent plate 2, and the protruding portion 6 is formed on the shield plate 1. By crimping at the central portion in the thickness direction, the deformation and cutting of the conductive mesh 5 can be suppressed.

Preferably, as shown in the reference example of FIG. 3A, each of the pair of strip-like joints 10a and 10b has a strip-shaped shoulder portion 11 extending on both sides of the top of the T-shaped cross section, and a center portion in the width direction of the strip-shaped shoulder portion 11. And a belt-like leg portion 12 (a central leg portion having a T-shaped cross section) having a predetermined width w projecting from the right angle. As shown in FIG. 1, the band-shaped shoulders 11a and 11b of the band-shaped connectors 10a and 10b are locked so as to straddle the opposing edges of the one-side surfaces 3 and 4 of the translucent shield plate 1, respectively. , 10b are inserted into the opposing gap W so as to abut against each other from both sides in the thickness direction. By inserting the coupling member 8 into the coupling holes 19 of both the joints 10a and 10b and tightening in the abutting direction, the adjacent shield plate 1 and its protruding portion 6 are aligned by the belt-shaped shoulder portions 11a and 11b, and The contact portion of the protruding portion 6 aligned with the front end surfaces 14a and 14b of the belt-like leg portions 12a and 12b is crimped. If necessary, a hole (not shown) through which the coupling member 8 is inserted can be provided in the protruding portion 6. The widths of the belt-shaped shoulder portions 11a and 11b are made as small as possible (thin) so as not to interfere with the light-transmitting properties of the light-transmitting shield plate 1, and the width w of the belt-shaped leg portions 12a and 12b is set to the gap between the light-transmitting shield plates 1. It is desirable that the height h of the strip-shaped leg portions 12a and 12b is substantially equal to the thickness H of the transparent plate 2 so as to match W.

FIG. 2 (B) and FIG. 3 (B) shows the respective strip-like connectors 10a, 10b of the distal end surface 14a, the embodiment of the present invention provided with the peak and valley portions 15 and 16 which fit into each other 14b. Since the mesh protrusion 6 is not necessarily uniform in thickness, the overlapped protrusion 6 is uniformly pressed when the tip surfaces 14a and 14b are flat as in the reference example of FIG. In order to stabilize the bonding quality, it is necessary to make the width w of the tip surfaces 14a and 14b relatively large. By providing the mountain valley portions 15 and 16 on the tip surfaces 14a and 14b, the protruding portion 6 can be uniformly crimped with a relatively small width w (for example, about 15 mm), and the joining quality can be stabilized. . However, if the peaks and valleys 15 and 16 are made too deep, the cross-sectional paths (hereinafter sometimes referred to as mesh paths) of the tip surfaces 14a and 14b become long, and a force that pulls out from the transparent plate 2 is applied to the protruding part 6. It is desirable not to make the peaks and valleys 15 and 16 of the tip surfaces 14a and 14b too deep, but to shorten the mesh path of the tip surfaces 14a and 14b to suppress the deformation and cutting of the conductive mesh 5.

  Further, in order to uniformly press the overlapped protruding portion 6, it is desirable that the strip-like connectors 10 a and 10 b are made of metal. When the joining tools 10a and 10b are made of a synthetic resin, it is difficult to maintain uniform electrical conductivity, and it is difficult to obtain stable electrical joining quality. By crimping the protruding portion 6 into a planar shape with the metal tip surfaces 14a and 14b, the protruding portion 6 can be uniformly pressed as described above, and the joining quality can be easily stabilized.

2 (C) and 3 (C) show an embodiment of the present invention in which a fastening portion (dubbing) 17 is provided on the front end surfaces 14a and 14b of the strip-like connectors 10a and 10b. If only the tip surfaces 14a and 14b are crimped as shown in FIG. 5B, the protruding portion 6 may slip out from between the tip surfaces 14a and 14b due to an earthquake or other external force. By providing the fastening portion 17, the protruding portion 6 is made difficult to come out between the front end surfaces 14 a and 14 b, and the width w of the front end surfaces 14 a and 14 b, that is, the width of the band-shaped joints 10 a and 10 b is further narrowed. be able to. However, in order to prevent the protruding portion 6 from slipping out by the fastening portion 17, it is necessary to join the belt-like connectors 10a and 10b with a relatively strong clamping pressure.

Desirably, a conductive gasket 18 (for example, a silicon-based composite material filled with conductive particles) as shown in the reference examples of FIGS. 2 (D) and 3 (D) is used as the front end surface 14a of each strip-like connector 10a, 10b. , 14b, and the mesh protrusion portion 6 overlapped by the butting of the gasket 18 is crimped. If the protruding portion 6 is pressure-bonded by the gasket 18 butting, the deviation of the protruding portion 6 between the end faces 14a and 14b can be effectively prevented, and the tightening pressure of the band-shaped joints 10a and 10b is small. Even in this case, it is possible to effectively prevent the protruding portion 6 from slipping out between the front end surfaces 14a and 14b. FIG (E) shows the strip connectors 10a, 10b of the distal end surface 14a, the embodiment of 14b the peaks and valleys 15 and 16 and the gasket 18 and the present invention provided with.

  By using the band-shaped joints 10a and 10b of the present invention, the translucent shield plate 1 can be electrically joined by a relatively simple operation, and the joining work time of the translucent shield plate 1 can be shortened. Reduction of joining work cost can be achieved. In addition, any general worker can easily obtain stable joining quality, and the joining quality of the translucent shield plate 1 can be made uniform. Furthermore, the disassembly of the light-transmitting shield plate 1 that is electrically joined is relatively simple, and the disassembled light-transmitting shield plate 1 can be reused. Moreover, the belt-like joints 10a and 10b of the present invention are not limited to the translucent shield plate 1 using the metal conductive mesh 5, but also the translucency using the non-metallic conductive mesh 5 such as synthetic fibers. It can also be used for joining the shield plate 1.

  Thus, it is possible to provide “a translucent electromagnetic shielding plate joining structure and a joining tool that can easily obtain stable joining quality”, which is an object of the present invention.

  Note that the translucent shield plate 1 joined by the belt-like joints 10a and 10b of the present invention is similar to the conventional translucent shield plate 1 through the mesh protruding portion 6 on the outer peripheral edge. It can be used as a window or wall surrounding the radio wave shielding space by being electrically joined to an electromagnetic wave shielding plate such as a floor or a ceiling. For example, in the embodiment of FIG. 1, a base plate 20 for connecting a shield plate is provided on the floor or ceiling of the radio wave shield space, and the band-like joints 10a and 10b are inserted while the translucent shield plate 1 is inserted into the groove 21 of the width wood 20. And each translucent shield plate 1 is electrically joined to an electromagnetic wave shield plate on the floor or ceiling via the baseboard 20.

  4 (B) and 5 show a pair of translucent light beams that are applied in a radio wave / magnetic shield space, and are installed in parallel through a required gap, using the translucent shield plate 1 joined by the belt-like connector 10 of the present invention. An embodiment is shown in which a magnetic shield housing 30 shown in FIG. 1A is disposed between the shield plates 1 to provide a window or wall having both radio wave / magnetic shield performance and translucency. As in the illustrated example, the size of the light-transmitting shield plate 1 is compared according to the size of the magnetic shield housing 30 by bonding the light-transmitting shield plate 1 using the belt-like connector 10 of the present invention. Can be adjusted easily. Further, by providing a magnetic plate support portion 35 on the side surface 13 opposite to the abutting side of the belt-like connector 10, and supporting each magnetic plate 31 of the magnetic shield housing 30 with the magnetic plate support portion 35, the belt-like joint portion of the present invention. 10 can be used for positioning of each magnetic plate 31 of the magnetic shield housing 30.

  For example, as shown in FIG. 4B, a plurality of magnetic plate support portions 35 are provided on the side surface 13 opposite to the abutting side of the band-shaped connector 10 in the band direction of the connector 10 via a predetermined interval d, and each support portion is provided. By engaging or placing a group of magnetic plates 31 having a longitudinal central axis C intersecting the band direction of the connector 10 on 35, the longitudinal central axis C of each magnetic plate 31 is made of a translucent shield. A magnetic shield housing 30 can be formed in parallel with the plate 1 at a predetermined interval d. The gap between the translucent shield plate 1 and the magnetic shield housing 30 can be appropriately adjusted by the protruding length of the magnetic plate support portion 35 from the belt-like connector 10.

  In the embodiment of FIG. 5, a rail portion 36 is provided along the belt-like direction on the side surface 13 opposite to the butting side of the belt-like connector 10, and a magnetic plate support portion 35 is slidably attached to the rail portion 36 in the belt-like direction. A group of magnetic plates 31 is locked or placed on a slidable magnetic plate support 35. By making the magnetic plate support portion 35 slidable, the position of the magnetic plate support portion 35 is adjusted according to the construction site of the radio wave / magnetic shield space, and the distance d between the magnetic plates 31 of the magnetic shield housing 30 is adjusted. Can be adjusted, and it can contribute to the simplification of construction of radio wave and magnetic shield space.

It is explanatory drawing of one Example of this invention. It is explanatory drawing of one Example of the strip | belt-shaped connector used by this invention. It is explanatory drawing of the other Example of the strip | belt-shaped connector used by this invention. It is explanatory drawing of the Example which combined the joining structure of the electromagnetic wave shield board of this invention, and the magnetic shield housing. It is explanatory drawing of the strip | belt-shaped connector of this invention which provided the magnetic board support part.

Explanation of symbols

1 ... Translucent electromagnetic shielding plate (transparent shielding plate)
2, 2a, 2b ... Transparent plate 3 ... One side surface of shield plate 4 ... Opposite side surface of shield plate 5 ... Conductive mesh 6 ... Mesh protruding portion 8 ... Connecting member (screw)
10a, 10b ... strip joint 11 ... strip shoulder
12 ... Strip-shaped leg 13 ... Side side opposite to butt side of strip-shaped connector
14 ... The tip of the strip connector 15 ... Mountain
16… Tanibe 17… Fastening part (Dowel)
18… Conductive gasket 19… Bonding hole
20 ... width wood 21 ... groove
30… Magnetic shield housing 31… Magnetic plate
35 ... Magnetic plate support portion 36 ... Rail portion C ... Center axis d in the length direction of the magnetic plate ... Thickness interval in the magnetic plate F ... Face of the magnetic shield housing h ... Band-shaped joint (or strip-shaped leg portion) Height H ... Transparent plate thickness w ... Band-shaped joint (or band-shaped leg) width W ... Shield plate gap

Claims (10)

A plurality of translucent electromagnetic shielding plates sandwiched between a pair of transparent plates so that the outer peripheral edge protrudes are opposed so that the mesh protruding portion of the outer peripheral edge is in electrical contact, and adjacent to each other. A pair of band-shaped joints having a predetermined width provided with peaks or valleys or fitting portions that are fitted to the front end surface from the one side surface and the opposite side surface of the shield plate are fitted into the opposing gap of the shield plate so as to be fitted. A joining structure of a translucent electromagnetic wave shielding plate formed by pressing a mesh protruding portion of an adjacent shielding plate into a planar shape by fitting a front end surface of a joining tool. 2. The bonding structure according to claim 1, wherein the belt-like bonding tool projects from the belt-shaped shoulder portion across the opposite end edge of the one-side surface of the shield plate and the widthwise center portion of the belt-like shoulder portion toward the opposite surface of the shield plate. A band-shaped joint having a T-shaped cross section having a band-shaped leg portion having a width, and the adjacent shield plate is fitted to the front end surface of the band-shaped leg portion while aligning the adjacent shield plates with each other with the band-shaped shoulder portions of the two joint members. Joining structure of translucent electromagnetic wave shielding plate formed by pressing mesh protruding part into surface. The joining structure according to claim 1 or 2, wherein a conductive gasket that is abutted against each other is provided on the front end surfaces of the joints. The joining structure according to any one of claims 1 to 3, wherein the both joining tools are made of metal. The joining structure according to any one of claims 1 to 4, wherein a group of magnetic plates having a central axis in a length direction intersecting with a band direction of the joint tool on a side opposite to a butting side of the belt-like joint tool is a length of each magnetic plate. Supports in a bowl shape so that its central axis is parallel to the shield plate on the same plane parallel to the shield plate, and shields the magnetic field while maintaining translucency by the group of bowl-like magnetic plates. The joining structure of the translucent electromagnetic wave shielding board which becomes. In a joining tool for joining a plurality of translucent electromagnetic wave shielding plates sandwiching a conductive mesh between a pair of transparent plates so that the outer peripheral edge protrudes so that the mesh protruding portion of the outer peripheral edge is in electrical contact, A pair of belt-like joints having a predetermined width, which are provided with a valley portion or a fastening portion to be fitted to each other at the front end face and are fitted into the opposing gap of the shield plate from one side surface and the opposite surface of the adjacent shield plate. A connector for a translucent electromagnetic wave shield plate, comprising: a mesh protrusion portion of an adjacent shield plate that is press-fitted into a planar shape by fitting the tip surfaces of the two connectors. 7. The connector according to claim 6, wherein the belt-shaped joint is projected from a belt-shaped shoulder portion straddling the opposite end edge of the one-side surface of the shield plate and a widthwise center portion of the belt-shaped shoulder portion toward the opposite surface of the shield plate. A band-shaped joint having a T-shaped cross section having a band-shaped leg portion having a width, and the adjacent shield plate is fitted to the front end surface of the band-shaped leg portion while aligning the adjacent shield plates with each other with the band-shaped shoulder portions of the two joint members. A connector for a translucent electromagnetic wave shielding plate formed by pressing a mesh protruding portion into a planar shape. The joint of the translucent electromagnetic wave shielding board which provides the joint gasket of Claim 6 or 7 which provides the conductive gasket mutually faced | matched by the front end surface of both said joints. 9. The joint of any one of claims 6 to 8, wherein the two joints are made of metal. The connector according to any one of claims 6 to 9, wherein a group of magnetic plates having a central axis in a length direction intersecting with a band direction of the connector is provided on the side opposite to the abutting side of the band-shaped connector. A translucent electromagnetic wave shield plate joint provided by providing a magnetic plate support portion that is supported in a bowl shape so that a central axis in a length direction is arranged in parallel at a predetermined interval on the same plane parallel to the shield plate.

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