Electromagnetic wave protection device

Abstract

To provide an electromagnetic wave protection device that can easily provide electromagnetic wave protection at a desired location.SOLUTION: An electromagnetic wave protection device 10 according to the present invention includes a substrate 100 made of a resin material containing terahertz ore powder, a cylindrical magnet 200 arranged such that magnetic lines of force are perpendicularly incident on the substrate 100, an aluminum sheet substrate 305 arranged so as to be stacked on the substrate 100, and a sticker 300 that attaches the substrate 100, the cylindrical magnet 200, and the aluminum sheet substrate 305 to an object.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an electromagnetic wave protection device that reduces the effects of electromagnetic waves on the human body. [Background technology]

[0002] Electromagnetic waves are emitted from electrical appliances in operation and from live electric wires. In recent years, the effects of these electromagnetic waves on the human body have become a concern. Since 1996, the World Health Organization (WHO) has been assessing the health risks of electromagnetic waves as part of its International Electromagnetic Field Project.

[0003] Proposals have been made for measures against electromagnetic waves. For example, Patent Document 1 (Patent Publication No. 7117050) describes one such proposal, a decorative panel for providing electromagnetic wave protection for furniture in which wiring plug connectors are embedded. [Patent Document 1] Patent No. 7117050 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional technology described in Patent Document 1 provides electromagnetic wave protection for relatively large objects such as furniture, and has a problem in that it is not possible to easily provide electromagnetic wave protection at a desired location. [Means for solving the problem]

[0005] The present invention is adapted to solve the above-mentioned problems, and the electromagnetic wave protection device of the present invention is characterized by having a base material made of a resin material containing terahertz ore powder, a magnet arranged so that magnetic lines of force are incident perpendicularly to the base material, an aluminum sheet arranged so as to be stacked on the base material, and a sticker for attaching the base material, the magnet, and the aluminum sheet to an object.

[0006] In addition, the electromagnetic wave protection device according to the present invention is characterized in that the terahertz ore powder is silicon powder.

[0007] Moreover, the electromagnetic wave protection device according to the present invention is characterized in that the magnet is a manganese aluminum magnet.

[0008] Moreover, the electromagnetic wave protection device according to the present invention is characterized in that the magnet is embedded in the base material.

[0009] Moreover, the electromagnetic wave protection device according to the present invention is characterized in that the magnet is attached to a magnet holder different from the base material. Effect of the Invention

[0010] The electromagnetic wave protection device of the present invention comprises a base material made of a resin material containing terahertz ore powder, a magnet arranged so that magnetic lines of force are incident perpendicularly on the base material, an aluminum sheet arranged so as to be stacked on the base material, and a sticker for attaching the base material, magnet, and aluminum sheet to an object. The electromagnetic wave protection device of the present invention can be attached to electrical appliances such as smartphones, making it possible to easily provide electromagnetic wave protection at desired locations. [Brief description of the drawings]

[0011] [Figure 1] 1A to 1C are diagrams illustrating an electromagnetic wave protection device 10 according to a first embodiment of the present invention. [Diagram 2] FIG. 1 is an exploded view of an electromagnetic wave protection device 10 according to a first embodiment of the present invention. [Diagram 3] 2 is a schematic cross-sectional view of a seal 300. FIG. [Figure 4] FIG. 11 is a diagram showing an electromagnetic wave protection device 10 according to a second embodiment of the present invention. [Diagram 5] FIG. 11 is an exploded perspective view of an electromagnetic wave protection device 10 according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a diagram for explaining an electromagnetic wave protection device 10 according to a first embodiment of the present invention. In Fig. 1, (A) is a perspective view of the electromagnetic wave protection device 10, and (B) is a cross-sectional view taken along line X-X'. Fig. 2 is an exploded view of the electromagnetic wave protection device 10 according to the first embodiment of the present invention. Also, Fig. 3 is a schematic cross-sectional view of a seal 300.

[0013] The electromagnetic wave protection device 10 according to the present invention is about the size of a coin, and is expected to be attached to, for example, a smartphone to reduce the electromagnetic waves emitted from the smartphone and suppress their effects on the human body. Note that the electromagnetic wave protection device 10 according to the present invention can be attached to other electrical appliances as well as to the sockets for inserting the power plugs of electrical appliances.

[0014] 1, electromagnetic wave protection device 10 according to the present invention forms a circle in plan view. Substrate 100, which is a main component of electromagnetic wave protection device 10, is a member made of a synthetic resin material containing 3.0% by mass or more and 8.0% by mass or less of terahertz mineral powder.

[0015] Here, the terahertz ore powder may be high-purity (for example, purity of 99.9999% or more (6N or more)) ceramics made of silicon, silicon carbide, alumina, zirconia, silica, or the like, or various ores.

[0016] As the synthetic resin material, general-purpose resins such as polyethylene and polypropylene, and combinations of these resins can be used. If the terahertz ore powder is less than 3.0% by mass relative to the synthetic resin material, the efficacy of the terahertz ore powder may be reduced. If the terahertz ore powder is more than 8.0% by mass relative to the synthetic resin material, the terahertz ore powder will flake off the base material 100, so it is preferable that the amount of terahertz ore powder mixed into the synthetic resin material be 3.0% by mass or more and 8.0% by mass or less.

[0017] The vibrations generated by terahertz mineral powder are expected to penetrate and act on the cells of the human body, activating the cells, promoting metabolism, and relieving stiffness, inflammation, etc., and by mixing terahertz mineral powder into base material 100, it is expected that the effects of electromagnetic waves on the human body will be further reduced.

[0018] The substrate 100 has a first main surface 110 and a second main surface 120 which is opposite to the first main surface 110. Three magnet recesses 130 are provided on the first main surface 110 side, and cylindrical magnets 200 are attached so as to be embedded in the magnet recesses 130. The number of cylindrical magnets 200 provided on the substrate 100 is arbitrary. The magnetic field lines of the cylindrical magnets 200 are laid out so as to be perpendicular to the substrate 100.

[0019] Magnets such as rare earth magnets, ferrite magnets, ultra-high density rare earth bonded magnets, iron chromium cobalt metal magnets, etc. can be used for the cylindrical magnet 200. In addition, it is preferable to use a cylindrical magnet 200 having a maximum magnetic flux density of 200 mT or more and 230 mT or less.

[0020] In particular, as the cylindrical magnet 200 used in the electromagnetic wave protection device 10 according to the present invention, it is preferable to use a binder-free manganese aluminum magnet mixed with a far-infrared radiation material such as tourmaline, as described in Japanese Patent No. 3138192.

[0021] The thickness D of the substrate 100 is about 1.5 mm, the thickness d of the cylindrical magnet 200 is about 0.7 mm, and the substrate 100 is a circle with a diameter of 25 mm when viewed from above. Also, the cylindrical magnet 200 has a diameter of about 3 mm when viewed from above while attached to the substrate 100. Note that such dimensional relationships are merely examples, and the concept of the present invention is not limited to these dimensions.

[0022] The cylindrical magnets 200 are magnetized as indicated by N and S in the exploded perspective view of Fig. 2, and as shown in this figure, three cylindrical magnets 200 are attached so as to be embedded in the base material 100. In other words, the N pole of the cylindrical magnets 200 is on the outside of the base material 100. In other words, in the electromagnetic wave protection device 10 according to the present invention, magnetic field lines extend from the first main surface 110 of the base material 100 and enter the second main surface 120 of the base material 100.

[0023] In the electromagnetic wave protection device 10 of the present invention, the above-mentioned magnetic field lines are generated around the electromagnetic wave protection device 10, thereby changing the direction of incidence of the electromagnetic waves attempting to enter the electromagnetic wave protection device 10, thereby reducing the electromagnetic waves.

[0024] A sealing recess 140 is provided on the second main surface 120 side of the base material 100, and a seal 300 is attached to this sealing recess 140. As shown in Fig. 3, the seal 300 is composed of an aluminum sheet base material 305, a first adhesive layer 310 provided on one main surface of the aluminum sheet base material 305, a second adhesive layer 320 provided on the other main surface of the aluminum sheet base material 305, and a release sheet 330 releasably attached to the second adhesive layer 320. The electromagnetic wave protection device 10 according to the present invention can implement more effective electromagnetic wave protection because the aluminum sheet base material 305, which is effective in shielding electromagnetic waves, is also used for the seal 300.

[0025] First adhesive layer 310 of sticker 300 is attached to the side of sticker recess 140. When attaching electromagnetic wave protection device 10 according to the present invention to an electrical appliance such as a smartphone, release sheet 330 is peeled off, and electromagnetic wave protection device 10 is attached to the electrical appliance such as a smartphone by the adhesive force of second adhesive layer 320.

[0026] The seal 300 serves to attach the substrate 100 containing the terahertz mineral powder, the cylindrical magnet 200, and the aluminum sheet substrate 305 to an object.

[0027] Electromagnetic wave protection device 10 according to the present invention comprises substrate 100 made of a resin material containing terahertz ore powder, cylindrical magnet 200 arranged so that magnetic field lines are incident perpendicularly on substrate 100, aluminum sheet substrate 305 arranged so as to be stacked on substrate 100, and sticker 300 for attaching substrate 100, cylindrical magnet 200, and aluminum sheet substrate 305 to an object. Electromagnetic wave protection device 10 according to the present invention can be attached to an electrical appliance such as a smartphone, making it possible to easily provide electromagnetic wave protection at a desired location.

[0028] The effects of the electromagnetic wave protection device 10 according to the first embodiment configured as described above were verified. An EMF-390V2 (manufactured by GQ Electronics) was used as a measuring device for measuring the electromagnetic waves. An iPhone 7 (manufactured by Apple Inc.) was used as the electromagnetic wave source. First, the background electromagnetic wave level was measured with the same measuring device in a location with no electromagnetic wave source, and the result was 10 nW / cm 2 ~20nW / cm 2 The measurement frequency band by the measuring device was 1 to 10 GHz.

[0029] Next, an electromagnetic wave source was placed 5 cm away from the measuring device, and the measurement was performed with the measuring device, which showed a value of 15 μW / cm 2 ~25μW / cm 2In other words, it was confirmed that the electromagnetic waves measured were 10^3 higher than the background electromagnetic wave level. Next, the electromagnetic wave protection device 10 according to the first embodiment was attached to the side opposite the screen of an iPhone 7, which is the electromagnetic wave source, and measurements were taken with the same measuring device 5 cm away from the electromagnetic wave source in the same manner as above. The result was 3 μW / cm 2 ~4μW / cm 2 From the above, it was confirmed that the electromagnetic wave protection device 10 according to the first embodiment has the potential to reduce the electromagnetic waves associated with electronic products such as smartphones by approximately 80%.

[0030] Next, another embodiment of the present invention will be described. Fig. 4 is a diagram showing an electromagnetic wave protection device 10 according to a second embodiment of the present invention. Fig. 4 is a diagram showing the electromagnetic wave protection device 10 according to the second embodiment in plan view. The electromagnetic wave protection device 10 according to the second embodiment differs from the previous embodiment only in that it is substantially triangular in plan view. In the electromagnetic wave protection device 10 according to the second embodiment, three corners of the substantially triangle are designed to be curved surfaces 11. According to the electromagnetic wave protection device 10 according to the second embodiment, it is possible to obtain the same effects as the previous embodiment, and the curved surfaces 11 provide a characteristic of being soft to the touch.

[0031] Next, other embodiments of the present invention will be described. In the embodiments described so far, the base material 100 is kneaded with terahertz mineral powder, and further, the cylindrical magnet 200 is embedded in the base material 100. In contrast, the electromagnetic wave protection device 10 according to the third embodiment is different from the previous embodiments in that the base material 100 kneaded with terahertz mineral powder is configured separately from the member in which the cylindrical magnet 200 is embedded.

[0032] Fig. 5 is an exploded perspective view of an electromagnetic wave protection device 10 according to a third embodiment of the present invention. Fig. 5 is an exploded view showing the layered structure of the electromagnetic wave protection device 10 according to the third embodiment. In the electromagnetic wave protection device 10 according to the third embodiment, from the top as viewed in Fig. 5, an aluminum sheet substrate 305, a magnet holder 150, a substrate 100, and a seal 300 are integrated together using an appropriate adhesive or the like.

[0033] The aluminum sheet base material 305 can effectively contribute to electromagnetic wave shielding, making the electromagnetic wave protection device 10 according to the third embodiment more effective in providing electromagnetic wave protection. The magnet holder 150 is a member made of polyethylene or polypropylene that holds the cylindrical magnet 200. Such a magnet holder 150 can be manufactured by punching a plate-shaped substrate, and is easy to manufacture. The cylindrical magnet 200 can be the same as that in the previous embodiment.

[0034] The substrate 100 is a member made of a synthetic resin material containing 3.0% by mass to 8.0% by mass of terahertz mineral powder. The magnetic field lines of a cylindrical magnet 200 held by a magnet holder 150 are perpendicularly incident on the substrate 100.

[0035] The sticker 300 has at least an adhesive layer and a release sheet, and enables the laminated aluminum sheet base material 305, magnet holder 150, and base material 100 to be affixed to an object, and the laminated structure does not need to be the same as that in FIG. 3.

[0036] The electromagnetic wave protection device 10 according to the third embodiment described above can provide the same effects as the embodiments described so far, and also has the advantage of being easy to manufacture because the magnet holder 150 is used. [Explanation of symbols]

[0037] 10. Electromagnetic wave protection devices 11...Curved surface part 100...Base material 110...First main surface 120...Second main surface 130 Magnet recess 140 Sealing recess 150···Magnetic holder 200 ···Cylindrical magnet 300...Seal 305 Aluminum Sheet Base 310...1st adhesive layer 320...2nd adhesive layer 330...Release sheet

Claims

1. A substrate made of a resin material containing terahertz mineral powder; A magnet is arranged so that magnetic lines of force are perpendicular to the substrate; An aluminum sheet arranged to be laminated to the base material; and a sticker for attaching the base material, the magnet, and the aluminum sheet to an object.

2. 2. The electromagnetic wave protection device according to claim 1, wherein the terahertz ore powder is silicon powder.

3. 2. The electromagnetic wave protection device according to claim 1, wherein the magnet is a manganese aluminum magnet.

4. 2. The electromagnetic wave protection device according to claim 1, wherein the magnet is embedded in the base material.

5. 2. The electromagnetic wave protection device according to claim 1, wherein the magnet is attached to a magnet holder different from the base material.

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