JP2024035758A - Room structure and construction method - Google Patents

Abstract

To effectively suppress electromagnetic wave entering from the outside to the inside of a room by a carbon fiber sheet.SOLUTION: A room structure forming a room for defining a living space of human beings includes: a first boundary structure that separates the inside from the outside of the room; and a second boundary structure that is adjacent to the first boundary structure and separates the inside from the outside of the room. The first boundary structure and the second boundary structure individually have a base layer that expands flatly, a carbon fiber sheet that is disposed on the base layer and contains carbon fibers, and a finish layer that is provided on the carbon fiber sheet and is exposed to the inside of the room. The carbon fiber sheet in at least one boundary structure of either the first boundary structure or the second boundary structure overlaps the carbon fiber sheet in the other boundary structure by expanding from between the base layer and the finish layer of one boundary structure.SELECTED DRAWING: Figure 2

Description

This specification discloses a technology related to a room structure and a construction method.

In recent years, it has been pointed out that electromagnetic waves from electrical appliances, power transmission lines, indoor wiring, mobile phones, wireless LANs, etc., may have an adverse effect on the human body. Patent Document 1 discloses coating an indoor wall surface with an indoor paint material that suppresses electromagnetic wave propagation from indoor wiring. Patent Document 2 discloses providing walls and floors with a conductive spunbond nonwoven fabric that suppresses electromagnetic wave propagation from indoor wiring.

Patent No. 6121603 Patent No. 5252605

As a living space where humans live, there is a need for an environment that suppresses not only indoor wiring but also various electromagnetic waves propagating from outside the room.

The technology disclosed in this specification can be realized as the following form.

(1) One form disclosed in this specification is a room structure that forms rooms that partition human living space. The room structure of this form includes a first boundary structure that partitions the inside and outside of the room; and a second boundary structure that is adjacent to the first boundary structure and partitions the inside and outside of the room. Each of the first boundary structure and the second boundary structure includes: a base layer that spreads in a plane; a carbon fiber sheet provided on the base layer and containing carbon fibers; and a carbon fiber sheet provided on the carbon fiber sheet. and a finishing layer exposed within the chamber. The carbon fiber sheet in at least one of the first boundary structure and the second boundary structure expands from between the base layer and the finishing layer in the one boundary structure, and thereby spreads between the base layer and the finishing layer in the other boundary structure. Overlapping with the carbon fiber sheet in the boundary structure.
According to this type of room structure, electromagnetic waves are prevented from entering from the outside of the room through the gap between the carbon fiber sheets of the first boundary structure and the carbon fiber sheets of the second boundary structure. The carbon fiber sheets in the boundary structure overlap each other to prevent electromagnetic waves (especially high-frequency electromagnetic waves with a frequency of 3 MHz or higher) propagating from the outside to the inside of the room in the first boundary structure and the second boundary structure. Can be shielded by a fiber sheet. In addition, since the potential between each carbon fiber sheet in the first boundary structure and the second boundary structure can be equalized, electromagnetic waves propagating from the outside to the inside of the room in the first boundary structure and the second boundary structure (In particular, the effect of suppressing low frequency electromagnetic waves with a frequency lower than 3 MHz) can be improved. As a result, electromagnetic waves entering the room from the outside can be effectively suppressed by the carbon fiber sheet.

(2) In the room structure described above, the carbon fiber sheet in the one boundary structure expands from between the base layer and the finishing layer in the one boundary structure to the other boundary structure. It may overlap with the carbon fiber sheet in the other boundary structure. According to this form of room structure, the carbon fiber sheet on one side that has expanded to the boundary structure on the other side can be sandwiched together with the carbon fiber sheet on the other side between the base layer and the finishing layer on the other side. It is possible to prevent the carbon fiber sheet on the other side from separating from the carbon fiber sheet on the other side.

(3) In the room structure described above, the first boundary structure constitutes a floor that partitions the lower part of the room, and the second boundary structure constitutes a wall that partitions the side of the room. Good too. According to this type of room structure, the carbon fiber sheet can suppress electromagnetic waves propagating from the outside to the inside of the room through the floor and walls.

(4) In the room structure described above, the carbon fiber sheet in the first boundary structure is provided below the center of the wall in the height direction without being connected in the height direction of the wall. Good too. According to this type of room structure, the carbon fiber sheet suppresses electromagnetic waves propagating into the space near the floor where you lie down while sleeping, while reducing costs compared to the case where carbon fiber sheets are installed all over the upper and lower walls. can.

(5) In the room structure described above, the first boundary structure constitutes a ceiling that partitions the upper part of the room, and the second boundary structure constitutes a wall that partitions the side of the room. Good too. According to this type of room structure, the carbon fiber sheet can suppress electromagnetic waves propagating from the outside to the inside of the room through the ceiling and walls.

(6) The above-described room structure may further include a frame that has conductivity at least on its surface and supports the first boundary structure and the second boundary structure. Each of the carbon fiber sheets in the first boundary structure and the second boundary structure extends from between the base layer and the finishing layer in each boundary structure along the surface of the base layer or the finishing layer. By doing so, the carbon fiber sheet may overlap with the carbon fiber sheet in the other boundary structure. The frame contacts each of the carbon fiber sheets while covering the overlapping portion of the carbon fiber sheets in the first boundary structure and the second boundary structure. According to this type of room structure, even if the overlapping parts of the carbon fiber sheets in the first boundary structure and the second boundary structure are separated, the carbon fiber sheets of the first boundary structure and the carbon fiber sheets of the first boundary structure can be viewed from the outside of the room. The frame can prevent electromagnetic waves from entering through the gap with the carbon fiber sheet of the boundary structure of No. 2.

(7) In the room structure of (6) above, the first boundary structure constitutes a floor that partitions the lower part of the room, and the second boundary structure constitutes a wall that partitions the side of the room. may be configured. According to this type of room structure, electromagnetic waves propagating from the outside to the inside of the room through the floor and walls can be suppressed by the carbon fiber sheet and frame.

(8) In the room structure of (6) above, the first boundary structure and the second boundary structure may constitute a floor that partitions a lower part of the room. According to this type of room structure, electromagnetic waves propagating from the outside to the inside of the room through the floor can be suppressed by the carbon fiber sheet and frame.

(9) In the room structure described in (6) above, the first boundary structure and the second boundary structure may constitute walls that partition the sides of the room. According to this type of room structure, electromagnetic waves propagating from the outside to the inside of the room through the walls can be suppressed by the carbon fiber sheet and frame.

(10) In the room structure described above, the carbon fiber sheet may be a carbon fiber reinforced thermoplastic resin sheet having a thickness of 0.4 mm to 0.7 mm and a carbon fiber content of 75 to 95% by mass. . According to this type of room structure, it is possible to achieve both the electromagnetic wave shielding property of the carbon fiber sheet and the workability.

(11) In the above-described room structure, each of the first boundary structure and the second boundary structure further includes a magnetic shielding layer provided between the base layer and the carbon fiber sheet and containing a magnetic material; It may have. According to this type of room structure, the magnetic shield layer can prevent low frequency electromagnetic waves from propagating from the outside to the inside of the room. In addition, infrared rays caused by Zeal heat generated by eddy currents caused by electromagnetic induction during the process of electromagnetic waves passing through the carbon fiber sheet can be emitted into the room without being blocked by the magnetic shielding layer. It can also promote blood circulation in animals.

(12) In the above-described room structure, each of the first boundary structure and the second boundary structure further includes a magnetic shielding layer provided between the carbon fiber sheet and the finishing layer and containing a magnetic material. , may have. According to this type of room structure, the magnetic shield layer can prevent low frequency electromagnetic waves from propagating from the outside to the inside of the room. In addition, the magnetic shield layer can block infrared rays caused by Zeal heat generated by eddy currents caused by electromagnetic induction during the process of electromagnetic waves passing through the carbon fiber sheet, thereby preventing the temperature rise inside the room due to the radiation of infrared rays. .

(13) In the above-mentioned room structure, the ground is further attached to at least one location of each of the carbon fiber sheets in the first boundary structure and the second boundary structure and electrically connected to the ground. A line may also be provided. According to this type of room structure, the effect of suppressing electromagnetic waves (particularly low frequency electromagnetic waves with a frequency lower than 3 MHz) by the carbon fiber sheet can be improved.

(14) In the room structure described above, the grounding wire may be electrically separated from other electrical appliances. According to this type of room structure, it is possible to prevent electromagnetic noise generated from other electrical appliances from propagating into the room via the ground wire.

(15) The above-mentioned room structure may further include: a fitting main body configured to be able to open and close an opening leading to the outside of the room; and a fitting frame fitted into the opening and supporting the fitting main body. good. A first conductive coating film is formed on the surface of the fitting main body, and a second conductive coating film is formed on the surface of the fitting frame. The second conductive coating film contacts the carbon fiber sheet in at least one of the first boundary structure and the second boundary structure. In the closed state of the fitting main body, the first conductive coating film contacts the second conductive coating film. According to this type of room structure, electromagnetic waves propagating from the outside to the inside of the room through the opening can be suppressed by the first and second conductive coating films.

(16) The room structure described above may further include a conductive fabric that covers the opening leading to the outside of the room. The conductive fabric is configured to be electrically conductive to the carbon fiber sheet in at least one of the first boundary structure and the second boundary structure. According to this type of room structure, electromagnetic waves propagating from the outside to the inside of the room through the opening can be suppressed by the conductive fabric.

(17) One form disclosed in this specification is a construction method for constructing a room that partitions a human living space. This construction method includes the steps of manufacturing a first boundary structure that partitions the inside and outside of the room; and manufacturing a second boundary structure that is adjacent to the first boundary structure and partitions the inside and outside of the room. Equipped with. Each of the first boundary structure and the second boundary structure includes: a base layer that spreads in a plane; a carbon fiber sheet provided on the base layer and containing carbon fibers; and a carbon fiber sheet provided on the carbon fiber sheet. and a finishing layer exposed within the chamber. In the step of manufacturing the first boundary structure and the second boundary structure, the carbon fiber sheet in at least one boundary structure of the first boundary structure and the second boundary structure is By extending from between the base layer and the finishing layer in the structure, the carbon fiber sheet in one boundary structure is overlapped with the carbon fiber sheet in the other boundary structure. According to this construction method, electromagnetic waves entering the room from the outside can be effectively suppressed by the carbon fiber sheet.

The technology disclosed in this specification can be realized in various forms different from the room structure and its construction method. The technology disclosed in this specification can be realized, for example, in the form of a building material and a manufacturing method thereof.

FIG. 2 is an explanatory diagram showing the structure of a room in the first embodiment. It is an explanatory view showing detailed structure of a floor and a wall. It is an explanatory view showing detailed structure of a floor and a wall in other embodiments. It is an explanatory view showing detailed structure of a wall and a ceiling. It is an explanatory view showing the detailed structure of the wall in other embodiments. It is an explanatory view showing the detailed structure of a door. It is an explanatory view showing detailed structure of a window and a curtain. It is an explanatory view showing the structure of the room in a 2nd embodiment. It is an explanatory view showing the structure of the room in a 3rd embodiment. 10 is an explanatory diagram showing the structure of the room seen from the opposite side of FIG. 9. FIG. FIG. 2 is an explanatory diagram showing the structure of the room with the ceiling cover and curtains removed. It is an explanatory view showing detailed structure of an adjoining part of a floor panel and a wall panel. It is an explanatory view showing detailed structure of an adjoining part between floor panels. It is an explanatory view showing detailed structure of an adjoining part between wall panels, and an adjoining part between wall panels. It is an explanatory view showing detailed structure of a ceiling cover and a curtain.

A. First Embodiment FIG. 1 is an explanatory diagram showing the structure of a room 100 in the first embodiment. Room 100 is a part of a building that partitions human living space. The room 100 may be a room in a general residence or a room in an office building. The room 100 is configured to be able to suppress electromagnetic waves propagating from the outdoors to the room. The room 100 includes a floor 110, walls 120, a ceiling 130, a door 150, a window 160, and a curtain 170 as a room structure that suppresses electromagnetic waves propagating from the outside to the inside. In the example of FIG. 1, the wall 120 on the near side of the page is omitted, and the room 100 includes four walls 120.

The floor 110 is a boundary structure that partitions the lower part of the room 100. Floor 110 is adjacent to four walls 120.

Wall 120 is a boundary structure that partitions the sides of room 100. Four walls 120 are adjacent to the floor 110 and ceiling 130. One wall 120 is adjacent to two other walls 120. In the example of FIG. 1, one of the four walls 120 is provided with a door 150, and the other wall 120 is provided with a window 160. A curtain 170 is installed at a position covering the window 160.

The ceiling 130 is a boundary structure that partitions the upper part of the room. Ceiling 130 is adjacent to four walls 120.

The door 150 is provided on one of the four walls 120 and is configured to allow people to enter and exit the room 100. The window 160 is provided in one of the four walls 120 and is configured to allow sunlight and ventilation. The curtain 170 is configured to be able to cover the window 160 from inside the room 100.

FIG. 2 is an explanatory diagram showing the detailed structure of the floor 110 and walls 120. FIG. 2 shows a vertical partial cross-section of the floor 110 and wall 120. The floor 110 includes a floor base layer 112, a floor carbon fiber sheet 114, and a floor finish layer 116. Wall 120 includes a wall base layer 122, a wall side carbon fiber sheet 124, and a wall finish layer 126.

The floor base layer 112 of the floor 110 is a base layer that extends horizontally in a plane. The floor base layer 112 can be made of construction materials (eg, wood, concrete, metal, synthetic resin, etc.) used for common room floors. When renovating an existing room, the existing floor may be used as the floor base layer 112 instead of creating a new floor base layer 112.

The floor-side carbon fiber sheet 114 is a carbon fiber sheet provided on the floor base layer 112. The floor-side carbon fiber sheet 114 contains carbon fibers. The floor-side carbon fiber sheet 114 has electromagnetic wave shielding properties that shield electromagnetic waves due to the carbon fibers it contains. The floor-side carbon fiber sheet 114 preferably has electromagnetic wave shielding properties capable of shielding electromagnetic waves with a frequency of 1 GHz by 40 dB or more using the Advantest method.

From the viewpoint of shielding electromagnetic waves, the floor-side carbon fiber sheet 114 of the floor 110 preferably covers the entire surface of the floor base layer 112 facing inside the room 100 without any gaps. When covering the floor base layer 112 using a plurality of floor-side carbon fiber sheets 114, adjacent portions of adjacent floor-side carbon fiber sheets 114 (for example, a portion 2 to 3 cm from the edge of the sheet) may be overlapped. preferable. Staples, adhesives, double-sided tape, etc. can be used to attach the floor carbon fiber sheet 114 to the floor base layer 112.

In this embodiment, the floor-side carbon fiber sheet 114 is a carbon fiber reinforced thermoplastic (CFRP) sheet in which carbon fibers are formed into a thin plate using a thermoplastic resin as an adhesive (binder). . In the CFRP sheet used for the floor-side carbon fiber sheet 114, from the viewpoint of ensuring flame retardancy as a building material, it is preferable to use a flame retardant material (for example, polyvinyl alcohol) as an adhesive for the carbon fibers. The length of the carbon fibers included in the floor-side carbon fiber sheet 114 is preferably 1 mm or more from the viewpoint of electromagnetic wave shielding properties. The carbon fibers included in the floor-side carbon fiber sheet 114 are arranged with their fiber directions oriented in a two-dimensional direction.

The CFRP sheet used for the floor-side carbon fiber sheet 114 has a thickness of 0.4 mm to 0.7 mm, and a carbon fiber content of 75 to 95% by mass, from the viewpoint of achieving both electromagnetic wave shielding properties and workability. It is preferable that there be. If the thickness of the CFRP sheet is less than 0.4 mm, electromagnetic wave shielding properties cannot be sufficiently ensured. When the thickness of the CFRP sheet exceeds 0.7 mm, it is easy to break due to lack of flexibility, making it impossible to ensure sufficient workability. When the carbon fiber content of the CFRP sheet is less than 75% by mass, electromagnetic wave shielding properties cannot be sufficiently ensured. When the carbon fiber content of the CFRP sheet exceeds 95% by mass, the sheet cannot maintain sufficient strength due to insufficient adhesion between the carbon fibers.

The floor finishing layer 116 of the floor 110 is a finishing layer provided on the floor-side carbon fiber sheet 114. Floor finish layer 116 is exposed to the interior of room 100. There may or may not be a gap between the floor finishing layer 116 and the floor-side carbon fiber sheet 114. Floor finish layer 116 can be made of construction materials used for typical room floors (eg, wood, carpet, tile, etc.).

The wall base layer 122 of the wall 120 is a base layer that extends planarly in the vertical direction. The wall base layer 122 can be made of construction materials (eg, wood, gypsum board, concrete, metal, synthetic resin, etc.) used for common room walls. When renovating an existing room, the existing floor may be used as the wall base layer 122 instead of creating a new wall base layer 122.

Wall-side carbon fiber sheet 124 of wall 120 is a carbon fiber sheet provided over wall base layer 122. The wall-side carbon fiber sheet 124 contains carbon fibers. The wall-side carbon fiber sheet 124 has electromagnetic wave shielding properties that shield electromagnetic waves due to the carbon fibers it contains. The wall-side carbon fiber sheet 124 preferably has an electromagnetic wave shielding property capable of shielding electromagnetic waves with a frequency of 1 GHz by 40 dB or more using the Advantest method. In this embodiment, the wall-side carbon fiber sheet 124 is a CFRP sheet similar to the floor-side carbon fiber sheet 114.

From the viewpoint of shielding electromagnetic waves, the wall-side carbon fiber sheet 124 preferably covers the entire surface of the wall base layer 122 facing inside the room 100 without any gaps. When covering the wall base layer 122 using a plurality of wall-side carbon fiber sheets 124, adjacent portions of adjacent wall-side carbon fiber sheets 124 (for example, a portion 2 to 3 cm from the edge of the sheet) may be overlapped. preferable. Staples, adhesives, double-sided tape, etc. can be used to attach the wall-side carbon fiber sheet 124 to the wall base layer 122.

The wall finish layer 126 of the wall 120 is a finish layer provided on the wall side carbon fiber sheet 124. Wall finish layer 126 is exposed to the interior of room 100. There may or may not be a gap between the wall finishing layer 126 and the wall-side carbon fiber sheet 124. The wall finish layer 126 can be made of construction materials (eg, wood, gypsum board, wallpaper, plaster, etc.) commonly used for walls in rooms.

As shown in FIG. 2, the floor-side carbon fiber sheet 114 and the wall-side carbon fiber sheet 124 have a contact portion OL1 that overlaps and contacts each other. It is preferable that the floor-side carbon fiber sheet 114 and the wall-side carbon fiber sheet 124 have a contact portion OL1 over the entire area where the floor base layer 112 and the wall base layer 122 are adjacent to each other. In the example of FIG. 2, the floor carbon fiber sheet 114 extends from between the floor base layer 112 and the floor finish layer 116 to the wall 120, and the wall carbon The fiber sheets 124 overlap. As a result, the contact portion OL1 prevents electromagnetic waves from entering from the outside of the room 100 through the gap between the floor-side carbon fiber sheet 114 of the floor 110 and the wall-side carbon fiber sheet 124 of the wall 120. and the wall-side carbon fiber sheet 124 can be equalized in potential. In addition, since the floor carbon fiber sheet 114 expanded to the wall 120 can be sandwiched together with the wall carbon fiber sheet 124 between the wall base layer 122 and the wall finishing layer 126, the floor carbon fiber sheet 114 and the wall carbon This can prevent the fiber sheet 124 from separating.

In other embodiments, the floor-side carbon fiber sheet 114 extends from between the floor base layer 112 and the floor finish layer 116 to the wall 120, and the floor-side carbon fiber sheet 114 extending into the wall 120 is a wall-side carbon fiber sheet. 124 may be overlapped. Further, the wall-side carbon fiber sheet 124 extends from between the wall base layer 122 and the wall finishing layer 126 to the floor 110, and the wall-side carbon fiber sheet is placed above or below the wall-side carbon fiber sheet 124 that has expanded to the floor 110. 124 may overlap.

FIG. 3 is an explanatory diagram showing the detailed structure of the floor 110 and wall 120 in another embodiment. FIG. 3, like FIG. 2, shows a vertical partial cross-section of the floor 110 and the wall 120. As shown in FIG. 3, the floor-side carbon fiber sheet 114 extends from between the floor base layer 112 and the floor finish layer 116 to the wall 120, and the wall-side carbon fiber sheet 124 extends between the wall base layer 122 and the wall finish layer 126. By expanding from the gap to the floor 110, the contact portion OL1 may be formed from the floor 110 to the wall 120. In the example of FIG. 3, the wall-side carbon fiber sheet 124 overlaps the floor-side carbon fiber sheet 114, but the floor-side carbon fiber sheet 114 may overlap the wall-side carbon fiber sheet 124. According to the embodiment of FIG. 3, even if one of the floor-side carbon fiber sheet 114 and the wall-side carbon fiber sheet 124 is broken due to bending, electromagnetic waves can be shielded by the other carbon fiber sheet.

Further, similarly to the contact portion OL1 between the floor 110 and the wall 120, the wall-side carbon fiber sheets 124 of two mutually adjacent walls 120 may overlap each other. This prevents electromagnetic waves from entering through the gaps between the wall-side carbon fiber sheets 124 on the two mutually adjacent walls 120, while also preventing the electromagnetic waves from entering through the gaps between the wall-side carbon fiber sheets 124 on the two mutually adjacent walls 120. Potential equalization is possible.

FIG. 4 is an explanatory diagram showing the detailed structure of the wall 120 and ceiling 130. FIG. 4 shows a partial cross-section of the wall 120 and the ceiling 130 taken in the vertical direction. The ceiling 130 includes a ceiling base layer 132, a ceiling-side carbon fiber sheet 134, and a ceiling finish layer 136. In this embodiment, the ceiling 130 is a plane parallel to the horizontal direction, but in other embodiments, at least a portion of the ceiling 130 may be a plane inclined with respect to the horizontal direction.

The ceiling base layer 132 of the ceiling 130 is a base layer that extends horizontally in a plane. The ceiling base layer 132 can be made of construction materials (eg, wood, concrete, metal, synthetic resin, etc.) used for general room ceilings. When renovating an existing room, the existing ceiling may be used as the ceiling base layer 132 instead of creating a new ceiling base layer 132.

The ceiling-side carbon fiber sheet 134 of the ceiling 130 is a carbon fiber sheet provided on the ceiling base layer 132. The ceiling-side carbon fiber sheet 134 contains carbon fibers. The ceiling-side carbon fiber sheet 134 has electromagnetic wave shielding properties that shield electromagnetic waves due to the carbon fibers it contains. The ceiling-side carbon fiber sheet 134 preferably has electromagnetic wave shielding properties capable of shielding electromagnetic waves with a frequency of 1 GHz by 40 dB or more using the Advantest method. In this embodiment, the ceiling-side carbon fiber sheet 134 is a CFRP sheet similar to the floor-side carbon fiber sheet 114 and the wall-side carbon fiber sheet 124.

From the viewpoint of shielding electromagnetic waves, the ceiling-side carbon fiber sheet 134 preferably covers the entire surface of the ceiling base layer 132 facing inside the room 100 without any gaps. When covering the ceiling base layer 132 using a plurality of ceiling-side carbon fiber sheets 134, adjacent portions of adjacent ceiling-side carbon fiber sheets 134 (for example, a portion 2 to 3 cm from the edge of the sheet) may be overlapped. preferable. Staples, adhesives, double-sided tape, etc. can be used to attach the ceiling carbon fiber sheet 134 to the ceiling base layer 132.

The ceiling finish layer 136 of the ceiling 130 is a finish layer provided on the ceiling side carbon fiber sheet 134. Ceiling finish layer 136 is exposed to the interior of room 100. There may or may not be a gap between the ceiling finishing layer 136 and the ceiling-side carbon fiber sheet 134. The ceiling finish layer 136 can be made of construction materials (eg, wood, gypsum board, wallpaper, etc.) commonly used for walls in rooms.

As shown in FIG. 4, the wall-side carbon fiber sheet 124 and the ceiling-side carbon fiber sheet 134 have a contact portion OL2 that overlaps and contacts each other. It is preferable that the wall-side carbon fiber sheet 124 and the ceiling-side carbon fiber sheet 134 have a contact portion OL2 over the entire area where the wall base layer 122 and the ceiling base layer 132 are adjacent to each other. In the example of FIG. 4, the ceiling-side carbon fiber sheet 134 extends from between the ceiling base layer 132 and the ceiling finishing layer 136 to the wall 120, and the ceiling-side carbon fiber sheet 134 that has expanded to the wall 120 is the wall-side carbon fiber sheet. It overlaps on top of 124. As a result, the contact portion OL2 prevents electromagnetic waves from entering from the outside of the room 100 through the gap between the wall-side carbon fiber sheet 124 of the wall 120 and the ceiling-side carbon fiber sheet 134 of the ceiling 130. The potential between the ceiling-side carbon fiber sheets 134 can be equalized.

In other embodiments, the ceiling carbon fiber sheet 134 extends from between the ceiling base layer 132 and the ceiling finish layer 136 to the wall 120, and the wall carbon The fiber sheets 124 may overlap. Further, the wall-side carbon fiber sheet 124 extends from between the wall base layer 122 and the wall finishing layer 126 to the ceiling 130, and the wall-side carbon fiber sheet is placed above or below the wall-side carbon fiber sheet 124 that has expanded to the ceiling 130. 124 may overlap. The ceiling-side carbon fiber sheet 134 extends from between the ceiling base layer 132 and the ceiling finish layer 136 to the wall 120, and the wall-side carbon fiber sheet 124 extends from between the wall base layer 122 and the wall finish layer 126 to the ceiling 130. By expanding, the contact portion OL2 may be formed from the wall 120 to the ceiling 130.

In the example of FIGS. 2 and 3, the wall-side carbon fiber sheet 124 is provided with a ground wire 180 electrically connected to the ground. The ground wire 180 is connected to the wall carbon fiber sheet 124 via a conductor sheet 182. The conductor sheet 182 is a sheet made of a conductor (for example, aluminum). The conductor sheet 182 is stuck to the wall-side carbon fiber sheet 124 with double-sided adhesive tape. A ground wire 180 is routed through the wall base layer 122 to the outside of the room 100. The ground wire 180 may be directly connected to the earth, or may be indirectly connected to the earth. In addition to the wall-side carbon fiber sheet 124 to which the grounding wire 180 is connected, the floor-side carbon fiber sheet 114 and the ceiling-side carbon fiber sheet 134 that are in contact with the wall-side carbon fiber sheet 124 are also grounded, so that the floor-side carbon fiber The effect of suppressing electromagnetic waves (especially low-frequency electromagnetic waves with a frequency lower than 3 MHz) by the sheet 114, the wall-side carbon fiber sheet 124, and the ceiling-side carbon fiber sheet 134 can be improved.

In this embodiment, the ground wire 180 is electrically isolated from other electrical appliances. This can prevent electromagnetic noise generated from other electrical appliances from propagating into the room 100 via the grounding wire 180.

In this embodiment, the ground wire 180 is connected to one location of the wall-side carbon fiber sheet 124 in the room 100. In other embodiments, the ground wire 180 may be connected to one location on the floor-side carbon fiber sheet 114 in the room 100 or may be connected to one location on the ceiling-side carbon fiber sheet 134 in the room 100. good. As a result, if the ground wire 180 is connected to any one of the floor-side carbon fiber sheet 114, wall-side carbon fiber sheet 124, and ceiling-side carbon fiber sheet 134 that are in contact with each other and conductive, other carbon fiber sheets can be connected. Since the ground wires 180 are also grounded, costs can be reduced compared to the case where a plurality of ground wires 180 are connected.

In other embodiments, a plurality of ground wires 180 may be connected to a plurality of locations on the floor carbon fiber sheet 114, the wall carbon fiber sheet 124, and the ceiling carbon fiber sheet 134 in the room 100. Thereby, even if any one of the plurality of ground wires 180 is disconnected, the grounding of each carbon fiber sheet can be ensured by the other ground wires 180.

FIG. 5 is an explanatory diagram showing the detailed structure of the wall 120 in another embodiment. 5(a) and 5(b) each show a partial cross-section of a wall 120 with different constructions.

In the structure of FIG. 5(a), a magnetically shielding layer 123 containing a magnetic material is provided between the wall base layer 122 and the wall-side carbon fiber sheet 124. The magnetically shielding layer 123 is a sheet containing a magnetically shielding material capable of shielding magnetism. In this embodiment, the magnetically shielding layer 123 is a magnetically shielding sheet made of a cobalt-based amorphous alloy. In other embodiments, the magnetically shielding layer 123 may be a magnetically shielding sheet made of other magnetically shielding materials such as Permalloy, Sendust, and the like. The magnetic shielding layer 123 is provided between the wall base layer 122 and the wall carbon fiber sheet 124, between the floor base layer 112 and the floor carbon fiber sheet 114, and between the ceiling base layer 132 and the ceiling carbon fiber sheet 134. It may be. The magnetic shielding layer 123 may be provided over the entire area of the floor 110, walls 120, and ceiling 130, or may be provided partially on the area of the floor 110, wall 120, and ceiling 130 where the magnetic field strength is relatively high. may be provided.

According to the structure of FIG. 5A, the magnetic shielding layer 123 can prevent low frequency electromagnetic waves propagating from the outside to the inside of the room 100. In addition, infrared rays caused by Zeal heat generated by eddy currents caused by electromagnetic induction during the process of electromagnetic waves passing through the carbon fiber sheet can be emitted into the room 100 without being blocked by the magnetic shielding layer 123. It can promote blood circulation for humans and animals indoors.

In the structure of FIG. 5(b), a magnetic shielding layer 125 containing a magnetic material is provided between the wall-side carbon fiber sheet 124 and the wall finishing layer 126. The magnetically shielding layer 125 is a sheet containing a material capable of shielding magnetism. In this embodiment, the magnetically shielding layer 125 is a magnetically shielding sheet made of a cobalt-based amorphous alloy. In other embodiments, the magnetically shielding layer 125 may be a magnetically shielding sheet made of other magnetically shielding materials such as Permalloy, Sendust, and the like. The magnetic shielding layer 125 is provided not only between the wall-side carbon fiber sheet 124 and the wall finishing layer 126, but also between the floor-side carbon fiber sheet 114 and the floor finishing layer 116, and between the ceiling-side carbon fiber sheet 134 and the ceiling finishing layer 136. It may be provided in between. The magnetic shielding layer 125 may be provided over the entire area of the floor 110, walls 120, and ceiling 130, or may be provided partially in areas of the floor 110, walls 120, and ceiling 130 where the magnetic field strength is relatively high. may be provided.

According to the structure of FIG. 5(b), the magnetic shielding layer 123 can prevent low frequency electromagnetic waves propagating from the outside to the inside of the room 100. In addition, the magnetic shielding layer 123 can block infrared rays caused by Zeal heat generated by eddy currents caused by electromagnetic induction during the process of electromagnetic waves passing through the carbon fiber sheet, so it is possible to prevent indoor temperature rise due to radiation of the infrared rays. .

FIG. 6 is an explanatory diagram showing the detailed structure of the door 150. FIG. 7 shows a partial cross-section of the wall 120 and the door 150 taken in the vertical direction. The door 150 is a fitting that opens and closes the opening OP11. The opening OP11 is provided in one of the walls 120 and communicates with the outside of the room 100. The door 150 includes a door body 151 and a door frame 155.

The door main body 151 is a fitting main body configured to be able to open and close the opening OP11. In this embodiment, the door body 151 is made of wood. A conductive coating film 152 is formed on the surface of the door body 151. The conductive coating film 152 of the door body 151 is preferably formed over the entire surface of the door body 151. The door frame 155 is a fitting frame that is fitted into the opening OP11 and supports the door body 151. In this embodiment, door frame 155 is made of wood. A conductive coating film 157 is formed on the surface of the door frame 155. The conductive coating film 157 of the door frame 155 is preferably formed over the entire surface of the door frame 155.

The conductive coating films 152 and 157 are formed by applying electromagnetic wave shielding paint having electromagnetic wave shielding properties. In this embodiment, the electromagnetic wave shielding paint used for the conductive coating films 152 and 157 is a paint in which graphite and carbon black are mixed as a dispersant, and carbon fiber may be further mixed therein.

The conductive coating film 157 of the door frame 155 has a contact portion CP1 that contacts the wall-side carbon fiber sheet 124. In other embodiments, the conductive coating 157 may contact the floor carbon fiber sheet 114. In the closed state of the door body 151, the conductive coating film 152 of the door body 151 contacts the conductive coating film 157 of the door frame 155. The conductive coating film 157 of the door frame 155 has a contact portion CP2 that contacts the conductive coating film 152 of the door body 151.

According to the structure of FIG. 6, electromagnetic waves propagating from the outside to the inside of the room 100 through the opening OP11 can be suppressed by the conductive coating films 152 and 157. Further, by equalizing the potential between the conductive coating films 152, 157 and the wall-side carbon fiber sheet 124, it is possible to improve the effect of suppressing electromagnetic waves propagating from the outside to the inside of the room 100 through the opening OP11.

FIG. 7 is an explanatory diagram showing the detailed structure of the window 160 and the curtain 170. FIG. 7 shows a partial cross-section of the floor 110, wall 120, ceiling 130, window 160, and curtain 170 taken in the vertical direction. The window 160 is a fitting that opens and closes the opening OP12. An opening OP12 is provided in one of the walls 120 and leads to the outside of the room 100. The window 160 includes a glass 162, a glass frame 164, a window frame 165, and a window frame 166.

Glass 162 is fitted into a glass frame 164. The glass frame 164 is an aluminum frame in which the glass frame 164 is fitted, and is a fitting main body configured to be able to open and close the opening OP12 by sliding the window frame 165. The window frame 165 is an aluminum fitting frame that is fitted into the opening OP12 together with the window frame 166 and supports the glass frame 164. The window frame 166 is a wooden fitting frame that is fitted into the opening OP12 together with the window frame 165 and supports the window frame 165. A conductive coating film 167 is formed on the surface of the window frame 166. The conductive coating film 167 is preferably formed over the entire surface of the window frame 166. The conductive coating film 167 of the window frame 166 is formed by applying electromagnetic wave shielding paint, similar to the conductive coating films 152 and 157 of the door 150. The conductive coating film 167 of the window frame 166 has a contact portion CP3 that contacts the wall-side carbon fiber sheet 124. In this embodiment, the conductive coating 167 is also in contact with the window frame 165.

The curtain 170 is configured to be able to cover the entire window 160 from the indoor side. The curtain 170 includes a curtain body 171, a rail 172, a plurality of runners 174, and a weight 176. The curtain body 171 is a conductive fabric having electromagnetic wave shielding properties. The curtain body 171 has a sufficient size to cover the entire window 160 from the indoor side. In this embodiment, the curtain body 171 is a conductive fabric woven with copper conductive threads. The rail 172 is a track extending horizontally above the window 160. The plurality of runners 174 are configured to be individually slidable along the rail 172 while the curtain main body 171 is suspended. The weight 176 is provided at the lower end of the curtain body 171 to prevent the curtain body 171 from swinging.

The rail 172 of the curtain 170 is provided at a position where the curtain body 171 can come into contact with the conductive coating film 167 of the window frame 166. The curtain body 171 has a contact portion CP4 that contacts the conductive coating film 167 of the window frame 166.

According to the structure of FIG. 7, electromagnetic waves propagating from the outside to the inside of the room 100 through the opening OP12 (particularly the glass 162) can be suppressed by the conductive coating film 167 and the curtain 170. Furthermore, the curtain body 171 and the wall-side carbon fiber sheet 124 are equalized in potential through the conductive coating film 167, and the effect of suppressing electromagnetic waves propagating from the outside to the inside of the room 100 through the opening OP12 is improved. Can be done.

A construction method for the room 100 will be explained. First, the builder constructs each of the floor base layer 112, wall base layer 122, and ceiling base layer 132. These base layers may be constructed in any order.

After manufacturing each base layer, the builder attaches each carbon fiber sheet, the floor carbon fiber sheet 114, the wall carbon fiber sheet 124, and the ceiling carbon fiber sheet 134, to each base layer. The carbon fiber sheets may be constructed in any order. In this process, the builder installs a carbon fiber sheet in at least one of two adjacent boundary structures among the floor 110, wall 120, and ceiling 130 between the base layer and the finishing layer in one boundary structure. The carbon fiber sheet in one boundary structure is overlapped with the carbon fiber sheet in the other boundary structure by expanding and providing the carbon fiber sheet in one boundary structure. Further, the builder connects the ground wire 180 to the carbon fiber sheet in accordance with the construction of the carbon fiber sheet.

After applying each carbon fiber sheet to each base layer, the builder applies conductive paint to fittings such as doors 150 and windows 160. As a result, in this embodiment, a conductive coating film 152 is formed on the door body 151, a conductive coating film 157 is formed on the door frame 155, and a conductive coating film 167 is formed on the window frame 166.

After applying the conductive paint to the fittings, the builder applies each of the floor finish layer 116, wall finish layer 126, and ceiling finish layer 136. The finishing layers may be applied in any order. After producing each finish layer, the builder installs the curtain 170. With this, the room 100 is completed.

According to the first embodiment described above, electromagnetic waves enter from the outside of the room 100 through the gaps between the carbon fiber sheets of the floor carbon fiber sheet 114, the wall carbon fiber sheet 124, and the ceiling carbon fiber sheet 134. The floor-side carbon fiber sheet 114 prevents electromagnetic waves (especially high-frequency electromagnetic waves with a frequency of 3 MHz or more) propagating from the outside to the inside of the room 100 on the floor 110, walls 120, and ceiling 130 by overlapping each carbon fiber sheet. , can be shielded by the wall-side carbon fiber sheet 124 and the ceiling-side carbon fiber sheet 134. In addition, since the potentials between the carbon fiber sheets of the floor carbon fiber sheet 114, the wall carbon fiber sheet 124, and the ceiling carbon fiber sheet 134 can be equalized, the outside of the room 100 can be It is possible to improve the effect of suppressing electromagnetic waves (particularly low-frequency electromagnetic waves with a frequency lower than 3 MHz) propagating into the interior. As a result, electromagnetic waves entering the room 100 from the outside can be effectively suppressed by the floor carbon fiber sheet 114, the wall carbon fiber sheet 124, and the ceiling carbon fiber sheet 134.

Further, electromagnetic waves propagating from the outside to the inside of the room 100 through the opening OP11 can be suppressed by the conductive coating films 152 and 157. Furthermore, electromagnetic waves propagating from the outside to the inside of the room 100 through the opening OP12 can be suppressed by the conductive coating film 167 and the curtain body 171.

B. Second Embodiment FIG. 8 is an explanatory diagram showing the structure of the room 102 in the second embodiment. The room 102 is different from the room of the first embodiment except that the wall-side carbon fiber sheet 124 is applied in a different area on the wall 120 and the ceiling-side carbon fiber sheet 134 is not applied on the ceiling 130. Same as 100. The wall-side carbon fiber sheet 124 of the second embodiment is provided from the floor 110 to the waist wall portion 128 below the center of the wall 120 in the height direction (height H/2 in FIG. 8). In FIG. 8, regions of the floor 110, walls 120, and ceiling 130 where carbon fiber sheets are provided are hatched. It is preferable that the wall-side carbon fiber sheets 124 are not connected in the height direction of the wall 120 from the viewpoint of reducing costs. In this embodiment, the conductive coating 167 of the window frame 166 is in contact with the wall-side carbon fiber sheet 124 below the window 160.

According to the second embodiment described above, while reducing costs compared to the case where the wall-side carbon fiber sheet 124 is provided over the entire upper and lower areas of the wall 120, the light propagates to the area near the floor 110 where the body lies when sleeping. Can suppress electromagnetic waves.

C. Third Embodiment FIG. 9 is an explanatory diagram showing the structure of a room 200 in a third embodiment. FIG. 10 is an explanatory diagram showing the structure of the room 200 seen from the opposite side of FIG. FIG. 11 is an explanatory diagram showing the structure of room 200 with ceiling cover 230 and curtain 260 removed.

Room 200 is a small assembly type room that partitions a human living space. Room 200 is mainly installed and used indoors. The room 200 is configured to be able to suppress electromagnetic waves propagating from the outdoors to the room. The room 200 includes a floor 210, walls 220, a ceiling cover 230, a frame 240, and a curtain 260 as a room structure that suppresses electromagnetic waves propagating from the outside to the inside.

The floor 210 is a boundary structure that partitions the lower part of the room 200. Floor 110 includes three floor panels 211A, 211B, and 211C. The floor panel 211A and the floor panel 211B are arranged on the same plane and adjacent to each other. The floor panel 211B and the floor panel 211C are arranged on the same plane and adjacent to each other.

Wall 220 is a boundary structure that partitions the sides of room 200. Wall 220 includes nine wall panels 221A-221I. The wall panel 221A and the wall panel 221B are arranged on the same plane and adjacent to each other. The wall panel 221C and the wall panel 221D are arranged on the same plane and adjacent to each other. Wall panel 221D and wall panel 221E are arranged on the same plane and adjacent to each other. The wall panel 221F and the wall panel 221G are arranged on the same plane and adjacent to each other. Wall panel 221A and wall panel 221I are orthogonal and adjacent to each other. The wall panel 221B and the wall panel 221C are orthogonal and adjacent to each other. Wall panel 221E and wall panel 221F are orthogonal and adjacent to each other. Wall panel 221G and wall panel 221H are orthogonal and adjacent to each other. An opening OP31 through which a person can enter and exit the room 200 is formed between the wall panel 221H and the wall panel 221I.

Frame 240 supports floor 210 and walls 220. The frame 240 includes four lower frames 241A to 241D, two lower auxiliary frames 241E, six vertical frames 242A to 242F, four outer auxiliary frames 242P, four inner auxiliary frames 242Q, and four upper frames. 243A to 243D.

Each member of frame 240 has conductivity at least on its surface. In this embodiment, each member of the frame 240 is a member made of aluminum. In another embodiment, each member of the frame 240 may be a steel member coated with a conductive paint that shields electromagnetic waves.

The lower frame 241A supports the lower portions of the floor panel 211A and the wall panels 221A and 221B. Lower frame 241A supports the lower portions of floor panels 211A to 211C and wall panels 221C, 221D, and 221E. The lower frame 241C supports the lower portions of the floor panel 211C and the wall panels 221F and 221G. Lower frame 241D supports the lower portions of floor panels 211A to 211C and wall panels 221H and 221I.

A lower auxiliary frame 241E is provided outside the room 200 at an adjacent portion between the floor panel 211A and the floor panel 211B, and at an adjacent portion between the floor panel 211B and the floor panel 211C.

The vertical frame 242A supports the sides of the wall panels 221A and 221I. Vertical frame 242B supports the sides of wall panels 221B and 221C. The vertical frame 242C supports the sides of the wall panels 221E and 221F. The vertical frame 242D supports the sides of the wall panels 221G and 221H. Vertical frame 242E supports the sides of wall panel 221H. Vertical frame 242F supports the sides of wall panel 221I.

An outer auxiliary frame 242P is provided on the outside of the room 200 and an inner auxiliary frame 242Q is provided on the inside of the room 200 adjacent to the wall panel 221A and the wall panel 221B. An outer auxiliary frame 242P is provided on the outside of the room 200 and an inner auxiliary frame 242Q is provided on the inside of the room 200 adjacent to the wall panel 221C and the wall panel 221D. An outer auxiliary frame 242P is provided on the outer side and an inner auxiliary frame 242Q is provided on the inner side of the adjacent portion of the wall panel 221D and the wall panel 221E. An outer auxiliary frame 242P is provided on the outside of the room 200 and an inner auxiliary frame 242Q is provided on the inside of the room 200 adjacent to the wall panel 221F and the wall panel 221G.

Upper frame 243A supports the upper portions of wall panels 221A and 221B. Upper frame 243B supports the upper portions of wall panels 221C, 221D, and 221E. The upper frame 243C supports the upper portions of the wall panels 221F and 221G. Upper frame 243D supports the upper portions of wall panels 221H and 221I.

An opening OP31 leading from the side of the room to the outside is formed in a region surrounded by the lower frame 241D, vertical frame 242E, vertical frame 242F, and upper frame 243D. An opening OP32 communicating from above the room to the outside is formed in a region surrounded by the four upper frames 243A to 243D.

Ceiling cover 230 is a conductive fabric that covers opening OP32. The ceiling cover 230 has a shape that fits on the outside of the four upper frames 243A to 243D. Ceiling cover 230 contacts upper frames 243A-243D.

Curtain 260 is a conductive fabric that covers opening OP31. Curtain 260 covers opening OP1 from the outside of room 200. Curtain 260 is attached to ceiling cover 230. The curtain 260 contacts the vertical frames 242E, 242F and the lower frame 241D in a suspended state.

FIG. 12 is an explanatory diagram showing the detailed structure of the adjacent portion between the floor panel 211A and the wall panel 221I. FIG. 12 shows a partial vertical section of the floor 210 and wall 220. Here, the structure of the adjacent part between the floor panel 211A and the wall panel 221I will be described as an example of the adjacent part between the floor panel and the wall panel, but other adjacent parts between the floor panel and the wall panel also have the same structure. It is.

The floor 210 has a structure in which a floor finishing layer 216 is spread over three floor panels 211A, 211B, and 211C that are spread horizontally. The floor panels 211A, 211B, and 211C are members in which a floor-side carbon fiber sheet 214 is integrally joined to a floor base layer 212 in advance.

The floor base layer 212 of the floor 210 is a base layer that extends horizontally in a plane. The floor base layer 212 can be made of construction materials (eg, wood, gypsum board, metal, synthetic resin, etc.) used for floors of typical prefabricated small rooms.

The floor base layer 212 has an inner surface 212s, a side end surface 212t, and an outer surface 212u. The inner surface 212s is a surface on which the floor carbon fiber sheet 214 is sandwiched between the inner surface 212s and the floor finishing layer 216. The side end surface 212t is the surface at the side end of the floor base layer 212. The outer surface 212u is the surface on the back side of the inner surface 212s.

The floor-side carbon fiber sheet 214 of the floor 210 is a carbon fiber sheet provided on the floor base layer 212. The floor-side carbon fiber sheet 214 contains carbon fibers. The floor-side carbon fiber sheet 214 has electromagnetic wave shielding properties that shield electromagnetic waves due to the carbon fibers it contains. The floor-side carbon fiber sheet 214 preferably has electromagnetic wave shielding properties capable of shielding electromagnetic waves with a frequency of 1 GHz by 40 dB or more using the Advantest method. In this embodiment, the floor-side carbon fiber sheet 214 is a CFRP sheet similar to the floor-side carbon fiber sheet 114 of the first embodiment.

The floor finishing layer 216 of the floor 210 is a finishing layer provided on the floor-side carbon fiber sheet 214. Floor finish layer 216 is exposed to the interior of room 200. There may or may not be a gap between the floor finishing layer 216 and the floor-side carbon fiber sheet 214. The flooring layer 216 can be made of construction materials (eg, wood, carpet, tile, etc.) that are commonly used for sectional flooring.

From the viewpoint of shielding electromagnetic waves, the floor-side carbon fiber sheet 214 preferably covers the entire inner surface 212s of the floor base layer 212 facing inside the room 200 without any gaps without being joined. The floor carbon fiber sheet 214 is provided extending from between the floor base layer 212 and the floor finishing layer 216 to the outer surface 212u via the side end surface 212t. The floor-side carbon fiber sheet 214 has a side end expanded portion 214tu expanded to the side end surface 212t, and an outer expanded portion 214u expanded to the outer surface 212u. Staples, adhesives, double-sided tape, etc. can be used to attach the floor carbon fiber sheet 214 to the floor base layer 212.

Wall 220 is composed of nine wall panels 221A to 221I. The wall panels 221A to 221I are members in which a wall base layer 222, a wall-side carbon fiber sheet 224, and a wall finishing layer 226 are integrally joined in advance.

The wall 220 has a structure in which nine wall panels 221A to 221I are provided in the vertical direction. The wall panels 221A to 221I are members in which a wall base layer 222, a wall-side carbon fiber sheet 224, and a wall finishing layer 226 are integrally joined in advance.

The wall base layer 222 of the wall 220 is a base layer that extends planarly in the vertical direction. The wall base layer 222 can be made of construction materials (eg, wood, gypsum board, metal, synthetic resin, etc.) used for walls of typical prefabricated small rooms.

Wall-side carbon fiber sheet 224 of wall 220 is a carbon fiber sheet provided over wall base layer 222. The wall-side carbon fiber sheet 224 contains carbon fibers. The wall-side carbon fiber sheet 224 has electromagnetic wave shielding properties that shield electromagnetic waves due to the carbon fibers it contains. The wall-side carbon fiber sheet 224 preferably has an electromagnetic wave shielding property capable of shielding electromagnetic waves with a frequency of 1 GHz by 40 dB or more using the Advantest method. In this embodiment, the wall-side carbon fiber sheet 224 is a CFRP sheet similar to the floor-side carbon fiber sheet 214.

The wall finish layer 226 of the wall 220 is a finish layer provided on the wall side carbon fiber sheet 224. Wall finish layer 226 is exposed to the interior of room 200. There may or may not be a gap between the wall finishing layer 226 and the wall-side carbon fiber sheet 224. The wall finish layer 226 can be made of construction materials (eg, wood, gypsum board, wallpaper, plaster, etc.) that are commonly used for walls of prefabricated cubicles.

The wall finishing layer 226 has an inner surface 226s, a lower end surface 226x, and an outer surface 226u. The inner surface 226s is a surface exposed to the inside of the room 200. The lower end surface 226x is the surface at the lower end of the wall finishing layer 226. The outer surface 226u is the surface on the back side of the inner surface 226s, and the wall carbon fiber sheet 224 is sandwiched between the outer surface 226u and the wall base layer 222.

From the viewpoint of shielding electromagnetic waves, it is preferable that the wall-side carbon fiber sheet 224 cover the entire surface of the wall base layer 222 facing inside the room 200 without any gaps without being joined together. The wall-side carbon fiber sheet 224 is provided extending from between the wall base layer 222 and the wall finishing layer 226 to the inner surface 226s via the lower end surface 226x of the wall finishing layer 226. The wall-side carbon fiber sheet 224 has a lower end expanded portion 224tx expanded to the lower end surface 226x, and an inner expanded portion 224s expanded to the inner surface 226s. Staples, adhesives, double-sided tape, etc. can be used to attach the wall carbon fiber sheet 224 to the wall base layer 222 and the wall finishing layer 226.

The lower frame 241D of the frame 240 is placed on the mounting floor FL. Lower frame 241D supports floor panel 211A and wall panel 221I from below.

The floor-side carbon fiber sheet 214 and the wall-side carbon fiber sheet 224 have a contact portion OL31 that overlaps and contacts each other. The contact portion OL31 is a portion where the side end expanded portion 214tu of the floor carbon fiber sheet 214 and the inner expanded portion 224s of the wall carbon fiber sheet 224 overlap. The lower frame 241D contacts the outer extended portion 214u of the floor carbon fiber sheet 214 and the lower end extended portion 224tx of the wall carbon fiber sheet 224 while covering the contact portion OL31. As a result, even if the contact portion OL31 where the floor-side carbon fiber sheet 214 of the floor 210 and the wall-side carbon fiber sheet 224 of the wall 220 overlap is separated, the floor-side carbon fiber sheet 214 and the wall-side carbon fiber sheet The lower frame 241D can prevent electromagnetic waves from entering through the gap with the sheet 224. Similarly, in the lower frames 241A to 241C, electromagnetic waves can be prevented from entering through the gap between the floor carbon fiber sheet 214 and the wall carbon fiber sheet 224.

FIG. 13 is an explanatory diagram showing the detailed structure of the adjacent portion between the floor panel 211A and the floor panel 211B. FIG. 13 shows a partial section of the floor 210 taken in the vertical direction. Here, as an example of the adjacent portion between floor panels, the structure of the adjacent portion between the floor panel 211A and the floor panel 211B will be described, but the adjacent portion between the floor panel 211B and the floor panel 211C has a similar structure. The lower auxiliary frame 241E of the frame 240 is placed on the mounting floor FL. The lower auxiliary frame 241E supports the two floor panels 211A and 211B from below.

Each of the floor-side carbon fiber sheets 214 in the two floor panels 211A and 211B has a contact portion OL32 that overlaps and contacts each other. The contact portion OL32 is a portion where the side end extension portions 214tu of the floor-side carbon fiber sheets 214 in the two floor panels 211A and 211B overlap. The lower auxiliary frame 241E contacts each of the outer expanded portions 214u of the floor-side carbon fiber sheets 214 in the two floor panels 211A and 211B while covering the contact portion OL32. As a result, even if the contact portion OL32 where each of the floor-side carbon fiber sheets 214 overlaps in the two floor panels 211A and 211B is separated, electromagnetic waves can be transmitted from the outside of the room 200 through the gap between the floor panel 211A and the floor panel 211B. can be prevented from entering by the lower auxiliary frame 241E. Similarly, in the adjacent portion between the floor panel 211B and the floor panel 211C, the lower auxiliary frame 241E can prevent electromagnetic waves from entering through the gap between the floor panel 211B and the floor panel 211C.

FIG. 14 is an explanatory diagram showing the detailed structure of the adjacent portion between the wall panel 221A and the wall panel 221B, and the adjacent portion between the wall panel 221A and the wall panel 221I. FIG. 14 shows a partial cross-sectional view of wall 220 taken horizontally. Here, as examples of adjacent parts between wall panels, the structure of the adjacent part between wall panel 221A and wall panel 221B and the structure of the adjacent part between wall panel 221A and wall panel 221I will be described. Adjacent parts of the panels have a similar structure.

The wall base layer 222 in each wall panel has an inner surface 222s, a side end surface 222t, and an outer surface 222u. The inner surface 222s is a surface on which the wall carbon fiber sheet 224 is sandwiched between the inner surface 222s and the wall finishing layer 226. The side end surface 222t is the surface at the side end of the wall base layer 222. The outer surface 222u is the surface on the back side of the inner surface 222s.

The wall finish layer 226 in each wall panel has a side end surface 226t in addition to an inner surface 226s and an outer surface 226u. The side end surface 226t is the surface at the side end of the wall finishing layer 226.

In the adjacent portion between wall panel 221A and wall panel 221B, outer auxiliary frame 242P supports wall panel 221A and wall panel 221B from outside of room 200, and inner auxiliary frame 242Q supports wall panel 221A and wall panel 221B from inside of room 200. Supports wall panel 221B. The outer auxiliary frame 242P and the inner auxiliary frame 242Q are fixed to the lower frame 241A and the upper frame 243A via bolts 248, respectively. The bolts 248 that connect each member of the frame 240 are aluminum members in this embodiment, and in other embodiments may be iron members coated with a conductive paint that shields electromagnetic waves.

In the adjacent portion between the wall panel 221A and the wall panel 221B, the wall-side carbon fiber sheet 224 extends from between the wall base layer 222 and the wall finishing layer 226 to the outer surface 222u via the side end surface 222t of the wall base layer 222. It is provided. The wall-side carbon fiber sheet 224 has a side end expanded portion 224tu expanded to the side end surface 222t, and an outer expanded portion 224u expanded to the outer surface 222u.

Each of the wall-side carbon fiber sheets 224 in the two wall panels 221A, 221B has a contact portion OL33 that overlaps and contacts each other. The contact portion OL33 is a portion where the side end extension portions 224tu of the wall-side carbon fiber sheets 224 in the two wall panels 221A and 221B overlap. The outer auxiliary frame 242P contacts each of the outer extended portions 224u of the wall-side carbon fiber sheets 224 in the two wall panels 221A and 221B while covering the contact portion OL33. As a result, even if the contact portion OL33 where each of the wall-side carbon fiber sheets 224 overlaps in the two wall panels 221A and 221B is separated, electromagnetic waves can be transmitted from the outside of the room 200 through the gap between the wall panel 221A and the wall panel 221B. can be prevented from entering by the outer auxiliary frame 242P. Similarly, in the adjacent portions of the two wall panels 221C and 221D, the adjacent portions of the two wall panels 221D and 221E, and the adjacent portions of the two wall panels 221F and 221G, the gap between the wall-side carbon fiber sheets 224 is passed through. Entry of electromagnetic waves can be prevented by the outer auxiliary frame 242P.

In the adjacent portion between wall panel 221A and wall panel 221I, vertical frame 242A supports wall panel 221A and wall panel 221I from outside of room 200. The vertical frame 242A is a member having a quadrangular prism cross section with an opening 242op formed on one side. A side end portion of the wall panel 221I is fitted into an opening 242op of the vertical frame 242A.

In the adjacent portion between the wall panel 221A and the wall panel 221I, the wall-side carbon fiber sheet 224 of the wall panel 221A is passed from between the wall base layer 222 and the wall finishing layer 226 to the outer surface via the side end surface 222t of the wall base layer 222. 222u. The wall-side carbon fiber sheet 224 of the wall panel 221A has a side end expanded portion 224tu expanded to the side end surface 222t, and an outer expanded portion 224u expanded to the outer surface 222u.

In the adjacent portion between the wall panel 221A and the wall panel 221I, the wall-side carbon fiber sheet 224 of the wall panel 221I is exposed from between the wall base layer 222 and the wall finishing layer 226 through the side end surface 226t of the wall finishing layer 226. It is extended to the side surface 226u. The wall-side carbon fiber sheet 224 of the wall panel 221I has a side end expanded portion 224ts expanded to the side end surface 226t, and an inner expanded portion 224s expanded to the inner surface 226s.

Each of the wall-side carbon fiber sheets 224 in the two wall panels 221A, 221I has a contact portion OL34 that overlaps and contacts each other. The contact portion OL34 is a portion where the side end expanded portion 224tu of the wall-side carbon fiber sheet 224 on the wall panel 221A side and the inner expanded portion 224s of the wall-side carbon fiber sheet 224 on the wall panel 221I side overlap. The vertical frame 242A contacts the outer expanded portion 224u of the wall-side carbon fiber sheet 224 on the wall panel 221A side and the inner expanded portion 224s of the wall-side carbon fiber sheet 224 on the wall panel 221I side while covering the contact portion OL34. . As a result, even if the contact portion OL34 where each of the wall-side carbon fiber sheets 224 overlaps in the two wall panels 221A and 221I is separated, electromagnetic waves can be transmitted from the outside of the room 200 through the gap between the wall panel 221A and the wall panel 221I. can be prevented from entering by the vertical frame 242A. Similarly, in the adjacent portions of the two wall panels 221B and 221C, the adjacent portions of the two wall panels 221E and 221F, and the adjacent portions of the two wall panels 221G and 221H, the gaps between the wall-side carbon fiber sheets 224 are passed through. Entry of electromagnetic waves can be prevented by the vertical frames 242B to 242D.

FIG. 15 is an explanatory diagram showing detailed structures of the ceiling cover 230 and the curtain 260. FIG. 15 shows a partial cross section of the ceiling cover 230 and the curtain 260 cut in the vertical direction.

The ceiling cover 230 has a shape that covers the opening OP32 surrounded by the four upper frames 243A to 243D. The ceiling cover 230 is a conductive fabric having electromagnetic wave shielding properties. In this embodiment, the ceiling cover 230 is a conductive fabric woven with copper conductive threads. Ceiling cover 230 contacts four upper frames 243A-243D.

The curtain 260 has a shape that covers the opening OP31 surrounded by the lower frame 241D, the vertical frame 242E, the vertical frame 242F, and the upper frame 243D. The curtain 260 is a conductive fabric having electromagnetic wave shielding properties. In this embodiment, the curtain 260 is a conductive fabric woven with copper conductive threads. Curtain 260 is suspended from ceiling cover 230. The curtain 260 contacts the vertical frames 242E, 242F and the lower frame 241D in a suspended state. A weight 261 is provided at the lower end of the curtain 260 to prevent the curtain 260 from swinging.

The wall base layer 222 in each wall panel includes an inner surface 222s and an outer surface 222u, as well as an upper end surface 222y. The upper end surface 222y is the surface at the upper end of the wall finishing layer 226. At the upper end of each wall panel 221A to 221I, the wall-side carbon fiber sheet 224 extends from between the wall base layer 222 and the wall finishing layer 226 to the outer surface 222u via the upper end surface 222y of the wall base layer 222. It is provided. The wall-side carbon fiber sheet 224 has an upper end expanded portion 224ty expanded to the upper end surface 222y, and an outer expanded portion 224u expanded to the outer surface 222u.

The upper frames 243A to 243D are members having a rectangular prism cross section with an opening 243op formed on one side. The side ends of the wall panels 221A to 221I are fitted into the openings 243op of the upper frames 243A to 243D. The upper frames 243A-243D contact the outer extension 224u of the wall-side carbon fiber sheet 224 at the opening 243op.

A construction method for the room 200 will be explained. First, the builder manufactures each member of the frame 240, each member of the floor 210 and wall 220, as well as the ceiling cover 230 and the curtain 260 at a factory. In this step, the builder manufactures floor panels 211A, 211B, 211C and wall panels 221A to 221I.

After manufacturing each member, the builder transports each member to the installation location of the room 200. Each member of the floor 210 and wall 220 is assembled to the frame 240 while assembling the frame 240. After assembling each member of the floor 210 and walls 220 to the frame 240, the builder attaches the ceiling cover 230 and the curtain 260 to the frame 240. With this, the room 200 is completed.

According to the third embodiment described above, the carbon fiber sheets overlap each other to prevent electromagnetic waves from entering from the outside of the room 200 through the gaps between the carbon fiber sheets in the floor carbon fiber sheet 214 and the wall carbon fiber sheet 224. Electromagnetic waves propagating from the outside to the inside of the room 200 on the floor 210 and walls 220 (especially high-frequency electromagnetic waves with a frequency of 3 MHz or more) can be shielded by the floor carbon fiber sheet 214 and the wall carbon fiber sheet 224 while preventing . In addition, since the potential between the carbon fiber sheets of the floor carbon fiber sheet 214 and the wall carbon fiber sheet 224 can be equalized, electromagnetic waves (especially The effect of suppressing low frequency electromagnetic waves (with a frequency lower than 3 MHz) can be improved. As a result, electromagnetic waves entering the room 200 from the outside can be effectively suppressed by the floor carbon fiber sheet 214 and the wall carbon fiber sheet 124.

Further, the curtain 260 can suppress electromagnetic waves propagating from the outside to the inside of the room 200 through the opening OP31. Furthermore, the ceiling cover 230 can suppress electromagnetic waves propagating from the outside to the inside of the room 200 through the opening OP32.

D. Other Embodiments The technology disclosed in this specification is not limited to the embodiments, examples, and modifications described above, and can be realized in various configurations without departing from the spirit thereof. For example, among the technical features of the embodiments, examples, and modifications described above, those corresponding to the technical features of each form described in the summary column solve part or all of the above problems. or to achieve some or all of the above-mentioned effects, they can be replaced and combined as appropriate. Furthermore, technical features that are not described as essential in this specification can be deleted as appropriate.

The conductive paint used in the room of the embodiment described above may be a paint containing graphite and carbon black as a dispersant, or a paint containing ferrite powder, which is a magnetic material mainly composed of iron oxide. Alternatively, it may be a paint containing at least one kind of metal powder, such as silver, copper, gold, aluminum, or nickel, which has a relatively high reflection loss of electromagnetic waves.

The conductive fabric used in the room of the above-described embodiment is a conductive fabric woven with at least one type of conductive yarn such as silver, copper, gold, aluminum, and nickel, which has a relatively high reflection loss of electromagnetic waves. It's okay. In addition, in order to prevent electromagnetic waves from entering through the seams of the curtains 170, 260 and the ceiling cover 230 when sewn, the ceiling cover 230 may be sewn using conductive thread that has electromagnetic shielding properties. The seams may be covered with a tape (for example, an aluminum tape) having a conductive material, or a conductive paint may be applied to the seams.

The structure of the door 150 and window 160 in the room 100 of the first embodiment can be applied to various fittings that can be installed in the room 100. The glass 162 of the first embodiment may be a glass having electromagnetic wave shielding properties, or may be glass to which a film having electromagnetic wave shielding properties is attached.

In the room 200 of the third embodiment, the door 150 of the first embodiment may be applied instead of the curtain 260. In the room 200 of the third embodiment, a ceiling having the same structure as the floor 210 or the wall 220 may be applied instead of the ceiling cover 230. The number of each member of the floor 210, wall 220, and frame 240 in the room 200 of the third embodiment may be increased or decreased as appropriate depending on the size of the room 200. The structure in which the panels are adjacent to each other in the room 200 of the third embodiment may be applied to the structure in which other panels are adjacent to each other.

100... Room 102... Room 110... Floor 112... Floor base layer 114... Floor side carbon fiber sheet 116... Floor finishing layer 120... Wall 122... Wall base layer 123... Magnetic shielding layer 124... Wall side carbon fiber sheet 125... Magnetic shielding layer 126... Wall Finishing layer 128...Waist wall part 130...Ceiling 132...Ceiling base layer 134...Ceiling side carbon fiber sheet 136...Ceiling finishing layer 150...Door 151...Door body 152...Conductive coating film 155...Door frame 157...Conductive coating film 160 ...Window 162...Glass 164...Glass frame 165...Window frame 166...Window frame 167...Conductive coating film 170...Curtain 171...Curtain body 172...Rail 174...Runner 176...Weight 180...Ground wire 182...Conductor sheet 200...Room 210... Floor 211A to C... Floor panel 212... Floor base layer 212s... Inner surface 212t... Side end surface 212u... Outer surface 214... Floor side carbon fiber sheet 214tu... Side end extension part 214u... Outer extension part 216... Floor finishing layer 220... Wall 221A-I...Wall panel 222...Wall base layer 222s...Inner surface 222t...Side end surface 222u...Outer surface 222y...Upper end surface 224...Wall side carbon fiber sheet 224s...Inner extension part 224ts...Side end extension part 224tu...Side end extension Part 224tx...lower end extension 224ty...upper end extension 224u...outer extension 226...wall finishing layer 226s...inner surface 226t...side end surface 226u...outer surface 226x...lower end surface 230...ceiling cover 240...frame 241-D...lower frame 241E...Lower auxiliary frame 242A-F...Vertical frame 242P...Outer auxiliary frame 242Q...Inner auxiliary frame 242op...Opening 243A-D...Upper frame 243op...Opening 248...Bolt 260...Curtain 261...Weight CP1...Contact part CP2... Contact part CP3...Contact part CP4...Contact part FL...Placement floor OL1...Contact part OL2...Contact part OL31...Contact part OL32...Contact part OL33...Contact part OL34...Contact part OP11...Opening part OP12...Opening part OP31...Opening part OP32…opening

The technology disclosed in this specification can be realized as the following form.
One form disclosed herein is a room structure that forms rooms that partition human living space. The room structure of this form includes: a first boundary structure that constitutes a floor that partitions the lower part of the room or a ceiling that partitions the upper part of the room; and a first boundary structure that partitions the inside and outside of the room; and a second boundary structure that constitutes a partitioning wall, is orthogonally adjacent to the first boundary structure, and partitions the inside and outside of the room. Each of the first boundary structure and the second boundary structure includes: a base layer that spreads in a plane; a carbon fiber sheet provided on the base layer and containing carbon fibers; and a carbon fiber sheet provided on the carbon fiber sheet. and a finishing layer exposed within the chamber. The carbon fiber sheet in at least one of the first boundary structure and the second boundary structure moves between the base layer and the finishing layer in one boundary structure to the base layer in the other boundary structure. and the finishing layer to overlap the carbon fiber sheet in the other boundary structure, and the carbon fiber sheet has a thickness of 0.4 mm to 0.7 mm and a carbon fiber sheet. It is a carbon fiber reinforced thermoplastic resin sheet with a content of 75 to 95% by mass.

Claims (17)

A room structure that forms rooms that partition human living space,
a first boundary structure that partitions the inside and outside of the room;
a second boundary structure adjacent to the first boundary structure and partitioning the inside and outside of the room,
Each of the first boundary structure and the second boundary structure is
A base layer that spreads flat,
a carbon fiber sheet provided on the base layer and containing carbon fibers;
a finishing layer provided on the carbon fiber sheet and exposed in the chamber;
The carbon fiber sheet in at least one of the first boundary structure and the second boundary structure expands from between the base layer and the finishing layer in the one boundary structure, and thereby spreads between the base layer and the finishing layer in the other boundary structure. A chamber structure that overlaps the carbon fiber sheet in a boundary structure. The room structure according to claim 1,
The carbon fiber sheet in the one boundary structure expands from between the base layer and the finishing layer in the one boundary structure to the other boundary structure. The room structure overlaps. The room structure according to claim 2,
The first boundary structure constitutes a floor that partitions the lower part of the room,
The second boundary structure is a room structure that constitutes a wall that partitions the side of the room. The room structure according to claim 3,
The carbon fiber sheet in the first boundary structure is provided below the center of the wall in the height direction without being connected in the height direction of the wall. The room structure according to claim 2,
The first boundary structure constitutes a ceiling that partitions the upper part of the room,
The second boundary structure is a room structure that constitutes a wall that partitions the side of the room. The room structure according to claim 1,
The frame further includes a frame having conductivity at least on the surface and supporting the first boundary structure and the second boundary structure,
Each of the carbon fiber sheets in the first boundary structure and the second boundary structure extends from between the base layer and the finishing layer in each boundary structure along the surface of the base layer or the finishing layer. overlaps with the carbon fiber sheet in the other boundary structure,
The frame is a room structure in which the frame contacts each of the carbon fiber sheets while covering a portion where each of the carbon fiber sheets overlaps in the first boundary structure and the second boundary structure. The room structure according to claim 6,
The first boundary structure constitutes a floor that partitions the lower part of the room,
The second boundary structure is a room structure that constitutes a wall that partitions the side of the room. The room structure according to claim 6,
A room structure in which the first boundary structure and the second boundary structure constitute a floor that partitions a lower part of the room. The room structure according to claim 6,
A room structure in which the first boundary structure and the second boundary structure constitute walls that partition sides of the room. The room structure according to claims 1 to 9,
The carbon fiber sheet is a carbon fiber reinforced thermoplastic resin sheet having a thickness of 0.4 mm to 0.7 mm and a carbon fiber content of 75 to 95% by mass. The room structure according to claims 1 to 9,
Each of the first boundary structure and the second boundary structure further includes:
a magnetically shielding layer provided between the base layer and the carbon fiber sheet and containing a magnetic material;
A room structure with. The room structure according to claims 1 to 9,
Each of the first boundary structure and the second boundary structure further includes:
a magnetic shielding layer provided between the carbon fiber sheet and the finishing layer and containing a magnetic material;
A room structure with. The room structure according to claims 1 to 9, further comprising:
A grounding wire attached to at least one location of each of the carbon fiber sheets in the first boundary structure and the second boundary structure and electrically connected to the ground;
Room structure provided. The room structure according to claim 13,
The grounding wire is electrically isolated from other appliances in the room structure. The room structure according to claims 1 to 9, further comprising:
a fitting main body configured to be able to open and close an opening leading to the outside of the room;
a fittings frame that is fitted into the opening and supports the fitting main body;
A first conductive coating film is formed on the surface of the fitting main body,
A second conductive coating film is formed on the surface of the fitting frame,
the second conductive coating film contacts the carbon fiber sheet in at least one boundary structure of the first boundary structure and the second boundary structure,
In the room structure, the first conductive coating film contacts the second conductive coating film when the fitting main body is closed. The room structure according to claims 1 to 9, further comprising:
A conductive fabric covering the opening leading to the outside of the room,
Prepare,
The chamber structure, wherein the conductive fabric is configured to be electrically conductive to the carbon fiber sheet in at least one of the first boundary structure and the second boundary structure. A construction method for constructing a room that partitions a human living space,
manufacturing a first boundary structure that partitions the inside and outside of the room;
manufacturing a second boundary structure adjacent to the first boundary structure and partitioning the inside and outside of the room,
Each of the first boundary structure and the second boundary structure is
A base layer that spreads flat,
a carbon fiber sheet provided on the base layer and containing carbon fibers;
a finishing layer provided on the carbon fiber sheet and exposed in the room;
In the step of manufacturing the first boundary structure and the second boundary structure, the carbon fiber sheet in at least one boundary structure of the first boundary structure and the second boundary structure is A construction method in which the carbon fiber sheet in one boundary structure is overlapped with the carbon fiber sheet in another boundary structure by extending from between the base layer and the finishing layer in the structure.

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