JPH0590780A - Radio wave absorber unit and radio wave absorption wall - Google Patents

Abstract

PURPOSE:To simply and inexpensively manufacture a radio wave absorption wall and to improve the radio wave absorption characteristics. CONSTITUTION:Surface materials such as tiles 12 to be disposed on the surface of a wall are previously integrated with ferrite plates 14 to be disposed on the back sides of the materials and having a thickness L of larger than 30mm in a direction along a wall surface and a depth t which is larger than the thickness L to be unitized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio wave absorber unit and a radio wave absorber wall using the same.

[0002]

2. Description of the Related Art In recent years,
The problem of reflection of TV radio waves from high-rise buildings, that is, the problem that the reflected waves of TV radio waves from the outer walls of high-rise buildings overlap with the direct waves from the TV broadcasting tower to create a ghost on the screen, is closed up. As a countermeasure against this, the outer wall of a high-rise building is constructed as an electromagnetic wave absorbing wall.

As the structure of this electromagnetic wave absorbing wall, a ferrite plate as an electromagnetic wave absorbing body is buried in a building material such as concrete in a predetermined arrangement state, while a surface exterior material such as tile is attached to the surface of the building material. Are known.

This electromagnetic wave absorbing wall is usually manufactured by the PC printing method. Specifically, when the PC plate is manufactured, a ferrite plate is embedded inside the concrete, and the manufactured PC plate is attached to the building side of the building to form the outer wall of the building.

When manufacturing a PC plate, concrete is placed in the mold while holding the ferrite plates in a predetermined arrangement. At this time, that is, a concrete material in a fluid state is put in the mold. When it is poured into and vibrated, the ferrite plate that was arranged in advance in a predetermined position may be displaced or the direction may change.
Alternatively, there is a problem that a gap is created between the ferrite plate and the ferrite plate, which causes deterioration of the electromagnetic wave absorption characteristics of the obtained electromagnetic wave absorption wall body.

In the case where the ferrite plate is largely displaced in this way, it cannot be corrected thereafter,
After all, it will be discarded.

Further, in the case of the above wall structure, there is a problem that a great deal of labor and time is required for manufacturing, and this is a factor that increases the manufacturing cost of the electromagnetic wave absorbing wall in combination with the problem of the above discarding.

[0008]

The invention of the present application has been made to solve such a problem. Thus, the invention of the present application is such that a surface exterior material such as a tile arranged on the surface of a wall body and a back surface side of the surface exterior material when the wall body is constructed,
A radio wave absorber having a thickness dimension L in the direction along the wall surface of L ≦ 30 mm and a depth dimension t of t ≧ L is integrated in advance to form a unit (claim 1).

Another aspect of the present invention is that an engaging groove is formed on the back surface of the surface exterior material and the radio wave absorber is engaged with the engagement groove, and the surface exterior material and the radio wave absorber are integrated. It is characterized by being formed into a unit (claim 2).

Still another aspect of the present invention is that the unit and the building material are integrated to form a wave absorbing wall body in a state where the wave absorber is buried inside a building material such as a concrete. (Claim 3).

[0011]

As described above, according to the invention of claim 1, the thickness dimension L and the depth dimension t in the direction along the wall surface are t.
A radio wave absorber having a relationship of ≧ L and a surface exterior material are integrated to form a unit.

As described above, the depth dimension t in the direction perpendicular to the wall surface
When the electromagnetic wave absorber is oriented so that t ≧ L with respect to the thickness dimension L in the direction along the wall surface, the lateral direction between the electromagnetic wave absorber and the electromagnetic wave absorber (while ensuring good electromagnetic wave absorption characteristics Strictly speaking, it has been confirmed that a large space (in the direction perpendicular to the magnetic field) can be set, and a separate application has been filed.

Thus, if the distance between the electromagnetic wave absorbers can be widened in this way, the adhesive force of the electromagnetic wave absorbers to building materials such as concrete can be strengthened, and the electromagnetic wave absorbers can be strengthened. Can be more reliably prevented from falling off from the building material.

On the other hand, however, when the radio wave absorber is oriented in this way, a holding means for holding the radio wave absorber in a predetermined array state, for example, when pouring a concrete in manufacturing a wall body such as a PC plate. Is a problem.

In this respect, according to the present invention, since the surface exterior material and the electromagnetic wave absorber such as the ferrite plate are integrated to form a unit, it is only necessary to position and hold the surface exterior material in the mold. At the same time, the radio wave absorber can be held in a predetermined position and arrangement.

Further, since the disturbance such as the position shift and the direction shift of the radio wave absorber is prevented by the holding and restraining action of the surface exterior material at the time of concrete casting, the obtained radio wave absorber has good radio wave absorption characteristics. Have.

Further, since the surface exterior material and the radio wave absorber are unitized, the radio wave absorbing wall body can be easily manufactured.

This is because it suffices to dispose an integrated unit of the surface exterior material and the electromagnetic wave absorber and to integrate it with the building material by placing a concrete or the like.

According to a second aspect of the present invention, an engaging groove is formed on the surface exterior material side and the radio wave absorber is engaged therewith. By doing so, the surface exterior material and the radio wave absorber are absorbed. The fixing force with the body can be further enhanced.

A third aspect of the present invention relates to an electromagnetic wave absorbing wall body using an electromagnetic wave absorber unit. This wall body is a unit of the surface exterior material and the electromagnetic wave absorber, and is used as a electromagnetic wave absorber at the time of manufacturing the wall body. Since the arrangement is prevented from being disturbed, it has good radio wave absorption performance and can effectively absorb incoming radio waves.

[0021]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a ferrite plate unit as a radio wave absorber unit, in which a tile 12 as a surface exterior material and a ferrite plate 14 are fixed and integrated.

The tile 12 is provided with a plurality of back feet 16 on the back surface side, and a back groove 18 is formed between these back feet 16. Each back groove 18 has the same width as the ferrite plate 14, and the end portion of the ferrite plate 14 is fitted therein and fixed by an adhesive.

FIG. 2 shows an example of another unit.
In the unit 20 of this example, the protrusion 2 is formed on the back surface of the tile 22.
4 are provided, and a deep engagement groove 26 is provided between these protrusions 24.
Are formed.

The ferrite plate 14 is fitted in the engaging groove 26 and is fixed by an adhesive.

In the case of this example, the tile 22 and the ferrite plate 1
There is an advantage that the adhesive force with 4 can be made stronger.

FIG. 3 shows an example of still another unit. In the unit 28 of this example, the back groove 18 of the tile 30 is shown.
The engaging groove 32 is provided in the direction perpendicular to the direction in which the ferrite plate extends, and the ferrite plate 14 is fitted therein and fixed by adhesion.

FIG. 4 shows an example of still another unit. In the unit 34 of this example, the back foot of the tile 36, that is, the back groove is not formed, and is composed of a pair of plate bodies 38. A mounting member 39 is provided, and these plate members 38 are provided.
An engaging groove 40 is formed between the two, and the ferrite 14 is fitted therein and fixed by adhesion.

Although various types of mounting members 39 can be used, it is desirable to use a non-conductive material that is as small as possible in order not to impair the electromagnetic wave absorption characteristics.

FIG. 5 shows an example in which a large number of the ferrite plate units 10 shown in FIG.
The ferrite units 10 are arranged so that the ferrite plates 14 form one row in the plate surface direction and form a predetermined gap between the rows of the ferrite plates 14, and in that state, the units 10 are connected. Are connected by a pin 44.

Here, as the connecting sheet 44, for example, an adhesive resin-made one can be used.

The ferrite plate 14 has a thickness dimension L ≦ 30.
mm, depth dimension t ≧ L (preferably t =
1.5L to 15L, more preferably t = 1.5L to 8
L).

FIG. 6 shows an example in which the radio wave absorbing wall body 46 is constructed by using the connecting unit 42. 4 in the figure
Reference numeral 8 is a concrete body in which the radio wave reflector 50 and the ferrite plate 14 are embedded. Tile 12 on the surface
Is attached.

In this wall 46, the tiles 12 and the ferrite plate 14 are arranged in the form of a unit, and the radio wave reflector 50 is arranged on the rear side of the tile 12 and the concrete material is poured into the form. It can be produced by solidifying.

At this time, each ferrite plate 14 is the tile 1
Since the position is maintained at No. 2, the flow of the concrete does not cause any turbulence such as a positional shift or a direction shift. Therefore, the obtained electromagnetic wave absorption wall body 46 has a good electromagnetic wave absorption performance.

Further, since it is not necessary to hold the ferrite plate 14 by a separate holding means when manufacturing the wall body, the wall body 46 can be manufactured easily and can be manufactured at low cost.

Although the embodiment of the present invention has been described in detail above, this is merely an example. In the present invention, in addition to the tile and the ferrite plate, it is possible to further integrate a radio wave reflector to unitize the three members, and various modifications are made based on the knowledge of those skilled in the art without departing from the spirit of the invention. It can be configured in a form in which is added.

[Brief description of drawings]

FIG. 1 is a diagram of a ferrite plate unit and a tile that is an embodiment of the present invention.

FIG. 2 is a view corresponding to FIG. 1 in another embodiment of the present invention.

FIG. 3 is a diagram corresponding to FIG. 1 in still another embodiment of the present invention.

FIG. 4 is a view corresponding to FIG. 1 in still another embodiment of the present invention.

5 is a perspective view of a connecting unit formed by connecting a large number of ferrite plate units shown in FIG. 1. FIG.

6 is a diagram of a radio wave absorption wall body configured by using the connection unit shown in FIG.

[Explanation of symbols]

 10, 20, 28, 34 Ferrite plate unit 12, 22, 30, 36 Tile 14 Ferrite plate 18, 26, 32, 40 Engagement groove 46 Radio wave absorbing wall body 48 Concrete body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenichi Yamazaki 5-1-1 Koi-Ehoncho, Tokoname-shi, Aichi Inatsusu Co., Ltd. (72) Koji Amimoto 5-1-1 Koi-Emotocho, Tokoname-shi, Aichi Stock Company Inside the Inatsukusu

Claims (3)

[Claims] 1. A surface exterior material such as a tile arranged on the surface of a wall body, and a depth L having a thickness dimension L along the wall surface of L ≦ 30 mm arranged on the back side of the surface exterior material when the wall body is constructed. A radio wave absorber unit, characterized in that it is integrated with a radio wave absorber having a dimension t of t ≧ L in advance. 2. An engagement groove is formed on the back surface of the surface exterior material, the radio wave absorber is engaged with the engagement groove, and the surface exterior material and the radio wave absorber are integrated to form a unit. The radio wave absorber unit according to claim 1, wherein 3. A radio wave absorbing wall body formed by integrating the unit and the building material in a state where the radio wave absorbing body is embedded inside a building material such as a concrete.