JPH0521983A - Electromagnetic noise shield building material - Google Patents

Abstract

PURPOSE:To electromagnetically shield noise simply and to mass-produce title materials low-costly by electrically connecting and grounding autoclaved lightweight foam concrete panels each filled with a metal net. CONSTITUTION:A building material base 1 incorporates a conductive reinforcement 2 for maintaining strength. Connection conductor 3 connected to conductive reinforcements are led out and electrically connected by conductive connection metals 4 every lateral or upper-lower building material bases 1. Grounding conductors 5 are connected to ground poles 6 by conductor connection metals 4 at several points of the connected building material base planes. This building material can be realized by changing meshes of the conductive reinforcements 2 or double-layering them, depending upon whether the electromagnetic noise has a frequency which wants shield in the building or has a frequency which does not want going outside the building. Using an ALC board filled with a metal mesh can produce the electromagnetic shield effect due to water- absorption performance of an ALC board itself and the shield effect due to a metal mesh.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall structure using a building material and having an electromagnetic shielding function.

[0002]

2. Description of the Related Art In recent years, with the development of the electronics industry, all kinds of electronic devices have increased, and along with that, the disturbance due to electromagnetic noise has increased. For example,
Due to electromagnetic noise generated from a spark plug of a motorcycle, electromagnetic noise generated from an electric machine of a factory, a radio communication radio wave including an artificial satellite, an electronic device in a building such as an NC machine: a robot, a computer, etc. There is a malfunction of. As a method for coping with such electromagnetic noise, there is known a method of embedding a mesh for electromagnetic wave shielding inside the PC board (Japanese Utility Model Laid-Open No. 61-140011, Japanese Patent Laid-Open No. 62-112846).

[0003]

Conventionally, in order to maintain the strength, the internal reinforcing material exists independently for each building material and is not electrically connected to each other and grounded. Thus, in the PC board, In order to shield electromagnetic noise, it was necessary to manufacture and use a new panel in which a shielding mesh was embedded.

[0004]

In order to eliminate such problems, the present invention is characterized in that an autoclave-cured lightweight cellular concrete panel in which a metal net is embedded is electrically connected and grounded. A lightweight cellular concrete panel wall structure that shields electromagnetic noise is provided.

The ALC panel in which a metal net is embedded in the present invention is preferably one in which a lath net or a mochi net is embedded, for example, specifically, Hebel light, power boat manufactured by Asahi Kasei Corporation. Can be used.

[0006]

The electromagnetic noise shielding building material according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic diagram when a reinforcing bar is used as a conductive reinforcing material, and FIG. 2 is a schematic diagram when a lath net is used.

Reference numeral 1 denotes a building material, which is a conductive reinforcing material 2 (in the case of FIG. 1, a reinforcing bar, for maintaining strength).
In the case of FIG. 2, there is a lath net). The conductive wire 3 connected to the conductive reinforcing member 2 is drawn out to the outside, and the conductive wire connecting hardware 4 is provided for each of the arranged horizontal, upper, or lower building material 1
To electrically connect. The grounding conductor 5 is connected to the grounding electrode 6 by the conductor wire-connecting hardware 4 at several points on the surface of the building material material that is connected.

Depending on the frequency to be shielded inside the building or the frequency of electromagnetic noise not to be output outside the building, it can be realized by changing the mesh of the conductive reinforcing material 2 or forming a multi-layer. When both strength and electromagnetic shielding performance of the building material material 1 are required, both reinforcing bars and lath nets can be inserted as the conductive reinforcing material 2.

[0009]

INDUSTRIAL APPLICABILITY In the present invention, by using an ALC plate containing a commercially available metal net, the electromagnetic shield effect due to the water absorption performance of the ALC plate itself and the electromagnetic shield effect due to the metal net embedded in the ALC plate are provided. With the above configuration, electromagnetic shielding can be performed very easily by the above-mentioned configuration, and (a) it is possible to provide a function of reducing noise generation from a factory that uses an electric machine that generates electromagnetic noise. . (B) A malfunction can be prevented by surrounding a place having an electronic device that may malfunction due to electromagnetic noise, radio waves, or the like. (C) The electromagnetic shield effect can be easily created. (D) It can be mass-produced at low cost. There are features such as.

[Brief description of drawings]

[Fig. 1] When reinforcing bars are used as conductive reinforcement

[Fig. 2] 1 when lath net is used as a conductive reinforcing material
The perspective view which shows an example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Building material material 2 ... Conductive reinforcing material 3 ... Connection conductor wire 4 ... Conductor connection metal object 5 ... Grounding conductor wire 6 ... Ground electrode

Claims (1)

Claims: 1. Electromagnetic noise shielding lightweight cellular concrete panel wall structure characterized in that an autoclave-cured lightweight cellular concrete panel in which a metal net is embedded is electrically connected to ground. .