WO2005091694A1 - 電磁波シールド材の取付構造及びそれを用いた電磁波シールド構造 - Google Patents
電磁波シールド材の取付構造及びそれを用いた電磁波シールド構造 Download PDFInfo
- Publication number
- WO2005091694A1 WO2005091694A1 PCT/JP2005/004609 JP2005004609W WO2005091694A1 WO 2005091694 A1 WO2005091694 A1 WO 2005091694A1 JP 2005004609 W JP2005004609 W JP 2005004609W WO 2005091694 A1 WO2005091694 A1 WO 2005091694A1
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- WIPO (PCT)
- Prior art keywords
- electromagnetic wave
- shielding material
- groove
- shield
- wave shielding
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 64
- 238000005452 bending Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 26
- 230000001105 regulatory effect Effects 0.000 description 30
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
- H05K9/0016—Gaskets or seals having a spring contact
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/072—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements
- E04F13/073—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements for particular building parts, e.g. corners or columns
- E04F13/0736—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements for particular building parts, e.g. corners or columns for columns
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
- E04F13/0805—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0001—Rooms or chambers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B2001/925—Protection against harmful electro-magnetic or radio-active radiations, e.g. X-rays
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
- E04B2002/7479—Details of connection of flexible sheets to frame or posts
Definitions
- the present invention relates to a mounting structure for extending a sheet-like electromagnetic wave shielding material on a building structure such as a wall, a ceiling, and a floor, and an electromagnetic wave shielding structure using the same.
- Patent Document 1 describes that a conductive material is applied to both sides of an insulating plate to use a double shielded electromagnetic shield panel.
- Patent Literature 2 describes a simple shielded room that can be expanded by assembling a metal pipe and a joint, covering the whole with a conductive mesh sheet and conductive tape, shielding electromagnetic waves, and expanding the room. I have.
- Patent Document 3 discloses that a metal layer is formed on the surface of an electromagnetic wave shielding material having a flat base portion and a vertical portion, and the vertical portion is inserted into a gap between joints of the conductive member, and the electromagnetic wave from the gap is formed. It is described that the leakage of the water is prevented.
- Patent Document 4 describes that a laminated board is attached along a joining portion of an electromagnetic shielding layer made of a metal plate with a tape of a soft material using an electromagnetic shielding material interposed therebetween. .
- Patent Document 1 Japanese Patent Application Laid-Open No. 5-235580
- Patent Document 2 JP-A-946038
- Patent Document 3 JP-A-8-293689
- Patent Document 4 JP-A-9-283966
- Patent Documents 3 and 4 it is necessary to attach or insert another member such as a tape to the joint in order to prevent leakage of electromagnetic waves at the joint. Therefore, it is costly and time-consuming for construction.
- the present invention provides an electromagnetic wave shielding material mounting structure capable of easily attaching a sheet-like electromagnetic wave shielding material and exhibiting a high shielding effect, and an electromagnetic wave shielding structure using the same. It is intended to provide.
- the support base having the groove formed in the longitudinal direction and the sheet-like end of the electromagnetic wave shielding material are pressed and fixed in the groove in a state of being wound.
- a mounting member for the electromagnetic wave shielding material comprising: a regulating member formed by bending a side plate forming one side surface of the groove toward a bottom surface of the groove.
- the fixing member has a press-fitting surface formed along the other side surface and the bottom surface of the groove portion, and has a fitting portion that press-fits and fits on the inner surface of the restricting portion.
- the material is pressure-fixed between the inner surface of the regulating portion and the fitting portion, and is pressure-fixed between the other side surface and the bottom surface of the groove and the pressure-contact surface of the fixing member.
- the fixing member is made of a plate-like body, and the plate-like body is bent to form the pressure contact surface and the fitting portion. It is characterized by having been done.
- the fixing member is made of a rod-shaped elastic body, and the press-contact surface and the fitting portion are formed by the surface shape of the elastic body.
- the support base is characterized in that the groove is formed on one side and a flat member fixing surface is formed on the other side.
- the electromagnetic wave shielding structure according to the present invention is characterized in that a plurality of the support bases are arranged at predetermined intervals in a column direction using the above-mentioned structure for mounting an electromagnetic wave shielding material, and an electromagnetic wave is provided between adjacent support bases. It is characterized in that the shield member is pressed and fixed by the fixing member.
- the shield member can be attached to the groove of the support base with a simple structure in which the sheet-like electromagnetic shield member is pressed and fixed by a fixing member, so that the shield member can be extremely easily attached. Mounting work can be performed.
- the supporting base is provided with a regulating portion formed by bending a side plate forming one side surface of the groove portion toward the bottom surface of the groove portion, and the fixing member is provided along the other side surface and the bottom surface of the groove portion.
- a press-fitting surface is formed and a fitting portion is provided for press-fitting and fitting to the inner surface of the regulating portion, and the electromagnetic wave shielding material is press-fitted between the inner surface of the regulating portion and the fitting portion, and the other side surface of the groove portion is provided.
- the fixing member is formed by bending a plate-like body to form a press-contact surface and a fitting portion, or by forming the press-contact surface and a fitting portion by a surface shape of a rod-shaped elastic body, thereby simplifying the fixing member. The cost can be reduced.
- the support base a groove is formed on one side and a flat member fixing surface is formed on the other side, for example, another electromagnetic wave shielding material is fixed on the member fixing surface. Then, it is possible to enhance the shielding effect or to fix the interior panel to hide the electromagnetic wave shielding material.
- the support bases are arranged at predetermined intervals, and the electromagnetic shielding material is pressed and fixed by a fixing member, so that the electromagnetic shielding structure can be easily installed in an existing building. Can be constructed.
- support bases are arranged and assembled along the inner surface of the room such as ceiling, wall and floor, and the electromagnetic wave shielding material is attached! / It can be easily constructed with fuzzy and easy to remove It is.
- the electromagnetic shielding material can be easily removed, it is possible to check the degree of the shielding effect and adjust the mounting condition or replace the shielding material, for example, while checking the degree of the shielding effect.
- FIG. 1 is a perspective view relating to an embodiment according to the present invention
- FIG. 2 is an exploded perspective view thereof.
- a pair of grooves 3 is formed on both left and right sides of a support column 1 as a support base, and a fixing member 2 as a fixing member is fitted into the grooves 3. Since the end of the sheet-shaped shield member 5 is wound around the fixing member 2 and fitted into the groove 3, the shield member 5 is fixed by pressure between the fixing member 2 and the groove 3. Then, both ends of the shield member 5 are pressed and fixed to the adjacent support columns 1, so that the shield members 5 are stretched between the support columns 1.
- FIG. 3 shows an enlarged cross-sectional view of a portion where the shield member 5 is attached to the support column 1.
- the support column 1 is formed by joining three members formed by bending a plate-like body such as a steel plate.
- the three members correspond to a restricting member 6 having a restricting portion 13 formed by bending both end portions along a bending line along the axial direction of the support column 1, and a bottom surface and side surfaces of a pair of groove portions 3.
- a column member 7 is formed by being bent in a convex shape at the center portion thereof, and a lid member 8 having a U-shaped cross section which becomes a rectangular column portion together with the column member 7. These three members are spot-welded at their joints. And, as shown in FIG. 3, the cross section is symmetrical.
- the groove 3 has an inner surface of the regulating member 6 as one side surface, a portion connecting the regulating member 6 of the step portion 14 forming the convex portion of the column member 7 as a bottom surface 19, and an inclined portion 15.
- the connecting portion is formed as the other side surface 20.
- the restricting portions 13 formed at both ends of the restricting member 6 are bent toward the bottom surface 19 so as to face.
- the regulating member 6 can be deflected to some extent in a direction away from the column member 7 around the portion joined to the column member 7 by welding, and the regulating portion 13 also has a bending direction centered on the bending line. Can open to some extent elastically in the opposite direction.
- the fixing bracket 2 is formed by bending a plate-like body such as a steel plate along a bending line along the axial direction of the support column 1, and has a central portion fitted with the groove 3.
- the projection 4 is formed in a U-shaped cross section.
- a portion extending from the corner portion 17 is formed to be short, and the end portion thereof is bent so as to open outward at the bent portion 16 to form the engaging portion 10.
- the portion extending from the corner 18 is formed to be long, and its end is bent so as to open outward to form the grip portion 11.
- the engaging portion 10 and the grip portion 11 can be deflected to some extent in a direction approaching and separating from each other.
- the end of the shield member 5 is wound so as to surround the fitting projection 4, and the tip reaches a position reaching the tip of the grip portion 11.
- the engaging portion 10 is inserted into the regulating portion 13, which presses the regulating member 6 outward and presses the bent portion 16 into contact with the regulating portion 13. Acts so as to push the restrictor 13 forward. Therefore, the fitting protrusion 4 is pressed against the bottom surface 19 and the side surface 20 of the groove 3 by the elastic force of the regulating member 6. Therefore, the shield member 5 disposed between the groove 3 and the fixing bracket 2 is drawn into the restricting portion 13 so as to be pulled toward the tip of the restricting portion 13, and is folded with the inner surface of the restricting portion 13.
- the shielding member 5 is provided between the inner surface of the regulating portion 13 and the bent portion 16, between the tip of the engaging portion 10 and the inner surface of the regulating member 6, and between the fitting projection 4 and the bottom surface 19. And between the mating projection 4 and the side surface 20 At the four points between them, the support column 1 is pressed against the entire length along the axial direction of the support column 1, so that the shielding effect at the end of the shield member 5 can be sufficiently exerted.
- the shield member 5 is fixed at a plurality of positions by the metal supporting column 1 and the fixing bracket 2. By pressing and fixing without gaps over the entire length, electromagnetic waves can be sufficiently shielded.
- the support column 1 and the fixing bracket 2 are manufactured using a metal plate such as a 0.5 mm-lmm steel plate or an aluminum plate, an appropriate radius can be obtained for the regulating member 6, and the fixing bracket can be obtained. Also in the case of 2, the fitting force to the groove portion 3 can be smoothly performed, and the shield material 5 can be pressed and fixed with a sufficient force after the fitting.
- the shield member 5 a material having flexibility as well as conductivity is preferred.
- a sheet member made of a thin metal sheet, a sheet member having a metal mesh or a metal foil, or a conductive fiber is used.
- a fabric such as a nonwoven fabric or a woven fabric, or a composite sheet obtained by laminating these sheet bodies can be used.
- a metal plating layer may be formed on such a sheet body.
- FIG. 4 to FIG. 7 are explanatory views showing a process of fitting the fixing fitting 2 to the support column 1.
- FIG. Shielding material 9 has been omitted for ease of understanding.
- the user holds the holding portion 11 of the fixture 2 and inserts the engaging portion 10 into the space 12 in the regulating portion 13 of the groove 3.
- the fitting convex part 4 is inserted while sliding along the inclined part 15 (FIG. 4).
- the grip portion 11 is pressed toward the restricting portion 13 so that the corner portion 18 enters the groove 3 from the inclined portion 15.
- the tip of the engaging portion 10 presses the inner surface of the regulating member 6, and the engaging portion 10 enters the depth of the space 12, and the bent portion 16 presses the inner surface of the regulating portion 13. And acts to push and expand the regulating portion 13. Therefore, the engaging portion 10 is pressed against the regulating member 6 by the reaction, and the corner portion 18 is pressed against the side surface 20 (FIG. 6). As the corners 18 are slid along the side surfaces 20, the engaging portions 10 become more empty.
- the engaging portion 10 is pressed by the elastic deformation, and the corner portion 18 is further strengthened. Is pressed against the side surface 20. Then, when the fitting projection 4 is pushed into a position where the fitting projection 4 is in close contact with the bottom surface 19 and the side surface 20, the fitting projection 4 is pressed against the bottom surface 19 and the side surface 20. Further, the tip of the engaging portion 10 is pressed against the inner surface of the regulating member 6, and the bent portion 16 is pressed against the inner surface of the regulating portion 13 (FIG. 7).
- the corner portion 18 of the fixing bracket 2 can be smoothly inserted, so that the mounting operation can be easily performed.
- FIGS. 8 and 9 are cross-sectional views showing another embodiment according to the present invention.
- FIG. 8 shows that, in the example shown in FIG. 3, another shield member 50 is stretched along the outer surface of the regulating member 6, and the board member 51 is also fixed with an additional force.
- Other parts are the same as in FIG.
- the shielding material 50 is the same as the shielding material 5, and by extending the shielding material 50, a double mounting structure is provided together with the shielding material 5, so that the shielding effect can be further enhanced. . Since the shield member 50 can be easily attached by screwing the screw 21, it is possible to extremely easily construct the shield double structure. Further, by providing the board member 51 on the surface of the shield member 50, the board member 51 can serve not only as a protective member for the shield member 50 but also as an interior material.
- FIG. 9 shows the electromagnetic wave shielding structure shown in FIG. 8, in which a shield member 52 is further stretched along the outer surface of the lid member 8 of the support column 1, and the board member 53 is fixed with an additional force.
- the shield material 52 is the same as the shield material 5, and has a triple mounting structure using three shield materials 5, 50, and 52, which can further enhance the shielding effect. Since the mounting operation can be easily performed with the screws 22, the installation is also easy. Further, the board member 53 plays a role as a protective member and an interior material of the shield member 52 similarly to the board member 51.
- FIG. 10 and FIG. 11 are cross-sectional views showing still another embodiment.
- a fixing rubber member 23 made of a rubber material is used in place of the fixing metal member 2, and the shield member 5 is adhered to the periphery of the fixing rubber member 23 without any gap.
- the shielding material 5 may be adhered to the periphery of the fixed rubber member 23 with an adhesive, or for example, a metal sheet having a thin plate force.
- the fixed material 23 may be formed by bending the molded material 5 in advance, and pouring a rubber material into the bent portion.
- the fixed rubber member 23 has a groove 24 into which the restricting portion 13 enters, and an engaging portion 25 adjacent to the groove 24 and inserted into the restricting portion 13. Then, as shown in FIG. 11, when the fixed rubber member 23 is fitted in the groove 3, the engaging portion 25 is pushed into the regulating portion 13, the regulating portion 13 is pushed out, and the regulating member 6 is pushed.
- the fixing rubber member 23 is pressed to the outside and is pressed against the bottom surface 19 and the side surface 20 of the groove 3 by the reaction. Therefore, the shielding material 5 adhered around the fixed rubber member 23 is provided between the engaging portion 25 and the inner surface of the restricting portion 13, between the engaging portion 25 and the restricting member 6, and between the fixing rubber member 23 and the fixing rubber member 23. It is pressed and fixed between the bottom surface 19 and the fixed rubber member 23 and the side surface 20. As a result, a sufficient shielding effect is exhibited as in the example shown in FIG.
- the fixed rubber members 23 are fixed to both ends of the shield member 5 in advance, when the fixed rubber member 23 is pushed into the groove 3, the shield member 5 does not shift, so that it is easy. And the mounting work can be efficiently performed.
- FIGS. 12 and 13 are perspective views showing an example of a method of fixing the upper and lower ends when the support column 1 is assembled.
- FIG. 12 shows a fixed state to the ceiling part 26, and
- FIG. 13 shows a fixed state to the floor part 27.
- a rail member 28 having a U-shaped cross section is fixed to the ceiling portion 26, and the upper end of the support column 1 is inserted into the rail member 28 and fixed by screws 29.
- a rail member 30 having a U-shaped cross section is fixed to the floor portion, and the lower end of the support column 1 is inserted into the rail member 30 and fastened and fixed with screws 29.
- FIGS. 14 and 15 are a perspective view (FIG. 14) showing an example of a method of attaching the shield member 5 to the ceiling portion, and a cross-sectional view (FIG. 15) of the rail member 28 in the transverse direction.
- the shield member 5 is attached so as to protrude above the upper surface of the support column 1, and the long protruding portion 32 is covered along the inner surface of the rail member 28, and the tip end is provided.
- the rail member 28 is set so as to be bent at the end and exposed to the outside. Then, the protruding portion 32 is pressed and fixed by the locking member 33.
- the locking member 33 is formed by bending a thin metal plate (thickness of about 0.3 to 0.6 mm) into a U-shaped cross section. Fold the part outward and set the rail member 28 A clip portion 35 is formed to be engaged with the side of the clip. Further, the other side portion 36 of the locking member 33 has a distal end portion which is locked to the grip portion 11 of the fixing fitting 2.
- FIG. 14 shows the locking member 33 in the rail member 28 with the protruding portion of the shield member 5 covered along the inner surface of the rail member 28 and exposed to the outside. It is. Then, as shown in FIG. 15, the clip portion 35 is engaged with the side portion of the rail member 28 so as to sandwich the shield member 5.
- FIG. 16 shows the AA cross-sectional view of FIG. 15. The side portion 36 of the force locking member 33 is brought into contact with the gripping portion 11 at the tip end and is locked by pressing! ⁇ Accordingly, the locking member 33 is stably held in the rail member 28 by the holding force of the clip portion 35 on the side portion of the rail member 28 and the pressing force of the side portion 36 on the grip portion 11.
- the locking member 33 into the inner surface of the rail member 28 so as to press it, the protruding portion 32 of the shield member 5 is pressed and fixed between the inner surface of the rail member 28 and the locking member 33. .
- the shield member 5 is mounted in the rail member 28 without any gap, with a wide V and a contact area, so that a sufficient shielding effect can be obtained.
- the shield member 5 may be protruded longer than the lower surface of the support column 1 and pressed and fixed in the rail member 30 by a locking member similar to the locking member 33 shown in FIG.
- FIG. 17 and FIG. 18 are cross-sectional views showing an embodiment of the electromagnetic wave shield structure according to the present invention.
- FIG. 17 shows an example in which the construction is carried out along an existing wall surface, and the upper and lower ends of a support column 1 arranged at predetermined intervals on the wall surface are fixed by rail members as shown in FIG. Then, the shield material 5 cut longer than the interval between the support columns 1 by a length necessary for mounting is fixed to the groove 3 of the support column 1 by press-fitting with the fixing bracket 2. In this case, the fitting operation can be performed in a short time because the fitting 2 is merely fitted.
- the shielding material 5 is sheet-shaped, it can be easily cut on site and can be easily attached according to the layout of the site. Then, as shown in FIG.
- FIG. 18 shows a cross-sectional view of the electromagnetic wave shielding structure installed on the wall.
- the support pillars 1 are arranged at predetermined intervals also on the ceiling and the floor, and the shielding material 5 is similarly attached. This makes it possible to shield the entire room from electromagnetic waves. Furthermore, such an electromagnetic wave shield structure can be independently constructed in one corner of the room to provide a simple shielded room.
- the electromagnetic shield member 5 is a light-weight sheet-like fabric, it can be easily constructed and easily removed. Can work.
- a shield room was assembled in the anechoic chamber using the above-mentioned electromagnetic shield structure with a floor area of about 1 tsubo and a room height of about 2.5m.
- a shielding material Woven Fabric manufactured by Seiren Co. was cut and used.
- the shielding material 5 was attached similarly to the ceiling and floor portions by arranging the support pillars 1 as shown in FIG.
- An antenna installed indoors and an antenna installed outdoors are placed facing each other across the wall of the shielded room.
- the two antennas are set at a height of 1.25m, and 2m between them Were installed at intervals.
- the transmitter generates electromagnetic waves at frequencies from 30 MHz to 18 GHz, and measures the electric field strength of both horizontal and vertical polarizations at the two antennas. The difference in the electric field strength between them was taken as the shield effect.
- FIG. 19 is a graph showing the measurement results.
- the vertical axis shows the shielding effect (dB), and the horizontal axis shows the transmission frequency (MHz).
- the power transformer power did not cut the noise, so the effect appeared in the low frequency region and the shielding effect was reduced.Power was still able to obtain a shielding effect of 50 dB or more in the frequency region of 100 MHz or more. ing.
- a panel to which a shielding material was stuck was attached, and the same measurement was performed with a double-structured shield structure.
- the measurement results are shown in the graph of FIG. In this measurement, since the noise from the power transformer was cut, a shielding effect of 60 dB or more was obtained over the entire frequency range!
- a conventional electromagnetic wave shielding structure a structure in which a copper foil or a steel plate is attached to a base and joined by screwing and bonding is known. With such a structure, only a shielding effect of 50 dB or less can be obtained. The current situation is that it has not been completed.
- FIG. 1 is a perspective view relating to an embodiment according to the present invention.
- FIG. 2 is an exploded perspective view relating to an embodiment according to the present invention.
- FIG. 3 is a cross-sectional view relating to an embodiment according to the present invention.
- FIG. 4 is an explanatory view showing a process of fitting a fixing bracket to a support column.
- FIG. 5 is an explanatory view showing a process of fitting a fixing fitting to a support column.
- FIG. 6 is an explanatory view showing a process of fitting a fixing bracket to a support column.
- FIG. 7 is an explanatory view showing a process of fitting a fixing bracket to a support column.
- FIG. 8 is a sectional view showing another embodiment according to the present invention.
- FIG. 9 is a cross-sectional view showing another embodiment according to the present invention.
- FIG. 10 is a sectional view showing another embodiment according to the present invention.
- FIG. 11 is a cross-sectional view showing another embodiment according to the present invention.
- FIG. 12 is a perspective view showing a fixed state of a support column in a ceiling portion.
- FIG. 13 is a perspective view showing a fixed state of a support column on a floor portion.
- FIG. 14 is a perspective view relating to a mounting state of an upper end portion of the shield member.
- FIG. 15 is a cross-sectional view relating to a mounting state of an upper end portion of a shield material.
- FIG. 16 is a sectional view taken along line AA in FIG. 15.
- FIG. 17 is a cross-sectional view related to an embodiment of the electromagnetic wave shielding structure according to the present invention.
- FIG. 18 is a cross-sectional view of an embodiment of the electromagnetic wave shielding structure according to the present invention.
- FIG. 19 is a graph relating to a shielding effect of an example.
- FIG. 20 is a graph related to the shielding effect of the example. Explanation of reference numerals
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Building Environments (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004080250A JP3626489B1 (ja) | 2004-03-19 | 2004-03-19 | 電磁波シールド材の取付構造及びそれを用いた電磁波シールド構造 |
JP2004-080250 | 2004-03-19 |
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WO2005091694A1 true WO2005091694A1 (ja) | 2005-09-29 |
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PCT/JP2005/004609 WO2005091694A1 (ja) | 2004-03-19 | 2005-03-16 | 電磁波シールド材の取付構造及びそれを用いた電磁波シールド構造 |
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JP (1) | JP3626489B1 (ja) |
WO (1) | WO2005091694A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009131219A1 (ja) * | 2008-04-25 | 2009-10-29 | 日本電気株式会社 | シートレドーム取り付け構造 |
CN103410237A (zh) * | 2013-08-09 | 2013-11-27 | 常州新区金利达电子有限公司 | 一体化建筑屏蔽围护波形板 |
Families Citing this family (3)
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---|---|---|---|---|
JP5424292B2 (ja) * | 2007-05-22 | 2014-02-26 | 大成建設株式会社 | リニューアルによる対象室の電磁シールド工法 |
CN103835467A (zh) * | 2014-02-12 | 2014-06-04 | 苏州金螳螂建筑装饰股份有限公司 | 玻璃卡槽式快速安装结构 |
CN114108857B (zh) * | 2021-11-22 | 2023-03-28 | 广州新莱福新材料股份有限公司 | 电磁屏蔽模块、电磁屏蔽结构及电磁屏蔽结构的施工方法 |
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JPS60103895U (ja) * | 1983-12-20 | 1985-07-15 | 松下電工株式会社 | 電波シ−ルドパネルの接続構造 |
JPS6431500A (en) * | 1987-07-28 | 1989-02-01 | Sumitomo 3M Ltd | Method and apparatus for shielding joint between adjacent panels of assembly type shield room shielding chamber |
US4889958A (en) * | 1987-06-11 | 1989-12-26 | Shimizu Construction Co., Ltd. | Building with electromagnetic shield structure for individual floors |
JPH0226300U (ja) * | 1988-08-09 | 1990-02-21 | ||
JPH0431527A (ja) * | 1990-05-29 | 1992-02-03 | Takenaka Komuten Co Ltd | シールドパネルの接合構造 |
JPH05187153A (ja) * | 1992-01-14 | 1993-07-27 | Mitsui Constr Co Ltd | 簡易式電磁シ−ルドル−ムの接合部の構造 |
JP2000027332A (ja) * | 1998-07-14 | 2000-01-25 | Takenaka Komuten Co Ltd | 遮蔽パネル構造 |
JP2002173990A (ja) * | 2000-12-07 | 2002-06-21 | Shimizu Corp | 電磁波シールド壁の継ぎ構造 |
-
2004
- 2004-03-19 JP JP2004080250A patent/JP3626489B1/ja not_active Expired - Fee Related
-
2005
- 2005-03-16 WO PCT/JP2005/004609 patent/WO2005091694A1/ja active Application Filing
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JPS60103895U (ja) * | 1983-12-20 | 1985-07-15 | 松下電工株式会社 | 電波シ−ルドパネルの接続構造 |
US4889958A (en) * | 1987-06-11 | 1989-12-26 | Shimizu Construction Co., Ltd. | Building with electromagnetic shield structure for individual floors |
JPS6431500A (en) * | 1987-07-28 | 1989-02-01 | Sumitomo 3M Ltd | Method and apparatus for shielding joint between adjacent panels of assembly type shield room shielding chamber |
JPH0226300U (ja) * | 1988-08-09 | 1990-02-21 | ||
JPH0431527A (ja) * | 1990-05-29 | 1992-02-03 | Takenaka Komuten Co Ltd | シールドパネルの接合構造 |
JPH05187153A (ja) * | 1992-01-14 | 1993-07-27 | Mitsui Constr Co Ltd | 簡易式電磁シ−ルドル−ムの接合部の構造 |
JP2000027332A (ja) * | 1998-07-14 | 2000-01-25 | Takenaka Komuten Co Ltd | 遮蔽パネル構造 |
JP2002173990A (ja) * | 2000-12-07 | 2002-06-21 | Shimizu Corp | 電磁波シールド壁の継ぎ構造 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009131219A1 (ja) * | 2008-04-25 | 2009-10-29 | 日本電気株式会社 | シートレドーム取り付け構造 |
CN103410237A (zh) * | 2013-08-09 | 2013-11-27 | 常州新区金利达电子有限公司 | 一体化建筑屏蔽围护波形板 |
CN103410237B (zh) * | 2013-08-09 | 2014-05-21 | 常州新区金利达电子有限公司 | 一体化建筑屏蔽围护波形板 |
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JP2005268597A (ja) | 2005-09-29 |
JP3626489B1 (ja) | 2005-03-09 |
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