FR3061828A1 - DEVICE FOR THE CONTROLLED DIFFUSION OF ELECTROMAGNETIC WAVES - Google Patents

Abstract

The invention relates to a device for controlled diffusion of electromagnetic waves from an electromagnetic wave emitting device (3) arranged in a housing, in which the housing has a Faraday cage structure and comprises at least one window (14) having dimensions suitable for passing electromagnetic waves emitted by the transmitting member, and a shutter (20) impervious to electromagnetic waves, mounted movable relative to the window between a first position in which the window is completely covered by the flap and a second position in which the window is at least partially cleared.

Description

Holder (s):

SYCY Simplified joint-stock company.

O Extension request (s):

© Agent (s): TOUROUDE & ASSOCIATES.

® CONTROLLED BROADCASTING DEVICE OF ELECTROMAGNETIC WAVES.

FR 3 061 828 - A1 (57) The invention relates to a device for the controlled diffusion of electromagnetic waves from an organ (3) for emitting electromagnetic waves arranged in a housing, in which the housing has a structure in a Faraday cage and comprises at least one window (14) having dimensions suitable for allowing the electromagnetic waves emitted by the emission member, and a flap (20) impermeable to electromagnetic waves, mounted movable relative to the window between a first position in which the window is completely covered by the shutter and a second position in which the window is at least partially cleared.

The present invention relates to a device for the controlled diffusion of electromagnetic waves from an organ for transmitting electromagnetic waves.

BACKGROUND OF THE INVENTION

We know that electromagnetic waves are harmful to the health of humans or animals, and more particularly to the health of children. This harmfulness is a function of the intensity of the electromagnetic waves and the duration during which a person is subjected to these electromagnetic waves.

Devices are known, in particular flexible bags, having a Faraday cage configuration, in which an electromagnetic wave emission member is introduced when it is desired to isolate this member from the surrounding space, in particular when a Wifi box is placed in a room in which you want to put children.

These devices are quite effective but they work in all or nothing.

OBJECT OF THE INVENTION

On the basis of the analysis, which is itself part of the invention, that in many circumstances the space in which one wishes to use an electromagnetic wave emitting member can be separated from the space in which are humans or animals, the object of the invention is to provide a device for controlled diffusion of electromagnetic waves.

BRIEF DESCRIPTION OF THE INVENTION

With a view to achieving this aim, a device is proposed according to the invention for the controlled diffusion of electromagnetic waves from an electromagnetic wave emitting member disposed in a housing, in which the housing has a structure in Faraday cage and comprises at least one window having dimensions suitable for allowing the electromagnetic waves emitted by the transmitting member to pass, and an electromagnetic wave-tight shutter, mounted movable relative to the window between a first position in which the window is completely covered by the shutter and a second position in which the window is at least partially uncovered.

According to a second observation which is also part of the invention, it has been observed that the variation of the dimensions of the window part not covered by the shutter makes it possible to limit the scope of the emission of electromagnetic waves while only decreasing weakly the maximum diffused flow.

The device according to the invention therefore makes it possible to preserve the health of human beings or of animals which are beyond the useful range of the diffusion control device according to the invention. When it is desired to separate a space for the use of electromagnetic waves from another space in which human beings wish to reside without being subjected to electromagnetic waves, it suffices to have the organ for emitting electromagnetic waves in one position where the useful space is reached before the space that is to be separated, and to adjust the opening of the flaps so that the range of the device coincides with the limit of the useful space.

According to an advantageous version of the invention, in the second position of the shutter, the window is half uncovered, and the shutter comprises a third position in which the window is completely uncovered. Preferably in this case, the shutter and / or the window has a stepped edge. Thus, there is a simple way to identify the emission rate that one wishes to use.

According to another advantageous aspect of the invention, the shutter has a stepped edge having steps whose height is equal to the height of the corresponding window.

By placing a step edge in coincidence with the corresponding edge of the window or shutter, it is possible to precisely regulate the diffusion rate that one wishes to use.

According to yet another advantageous aspect of the invention, the housing has a first window on a first side of the housing, and a second window on a second side of the housing, opposite the first side. Thus, without changing the device of place one can reach a personalized space.

According to one embodiment of the device according to the invention, the window is produced in a cylindrical part of the case, and the flap is mounted to pivot around an axial direction of the cylindrical part. With this assembly, the shutter is particularly easy to maneuver.

According to another aspect of the embodiment of the device according to the invention, the housing comprises a lower plate having an L-shaped part forming an upward recess having a horizontal portion comprising ventilation openings. Thus, convection ventilation continues to be carried out even when the device is placed against a wall.

Preferably in this case, the step comprises a vertical portion comprising cable passage orifices. This limits the deformation of the cables when the device is applied against a wall.

More preferably, the flap is mounted cantilevered on a side wall of the housing, and the opposite side wall is removable. There is thus easy access to set up or change the organ for emitting electromagnetic waves.

BRIEF DESCRIPTION OF THE DRAWINGS

Other characteristics and advantages of the invention will become apparent on reading the following description of a preferred non-limiting embodiment of the invention with reference to the attached figures, among which:

FIG. 1 is an exploded view, in perspective from the front,

FIG. 2 is an exploded view, in perspective from the rear,

DETAILED DESCRIPTION OF THE INVENTION

The device comprises a housing comprising a lower plate 1 and a metal upper cover 2 having dimensions suitable for receiving an electromagnetic wave emitting member 3. Along its rear edge, the lower plate 1 has an inverted L-shaped part 4 having a horizontal portion 5 comprising ventilation orifices having dimensions suitable for constituting a screen for the propagation of electromagnetic waves emitted by the transmitting member 3, and a vertical portion 6 comprising cable passage orifices 7 also having appropriate dimensions to form a screen for the propagation of electromagnetic waves emitted by the transmitting member 3.

The cover 2 has a general shape in coated C comprising a front cylindrical part 8 and a rear cylindrical part

9.

In the front cylindrical part 8, the cover 2 comprises a front window 14 having dimensions suitable for letting through the electromagnetic waves emitted by the transmitting member 3. Likewise, the rear cylindrical part 9 comprises a window 15 having dimensions suitable for letting through the electromagnetic waves emitted by the transmitting device 3.

The housing further comprises a right side plate 16 having ventilation holes 17 having suitable dimensions to form a screen for electromagnetic waves emitted by the transmitting member 3. The right side plate 16 carries a front bearing 18 intended to receive a pivot axis 19 of a front flap 20 in the form of a cylindrical sector of the same diameter as the front cylindrical part 8 of the cover 2. The front flap 20 has a straight lower edge 21 and a stepped upper edge 22. The edges of the flap 20 thus define a step 34 which has a height slightly greater than the height h of the window 14, and a length equal to half the length L of the window 14, and a step 35 which has, relative to the first step 34 a height slightly greater than the height h of the window 14, and a length equal to half the length L of the window 14. The steps 34 and 35 are in the extension one of e the other.

The right side plate 16 also includes a rear bearing 23 intended to receive a pivot axis 24 of a rear flap 25 in the form of a cylindrical sector of the same diameter as the rear cylindrical part 9 of the cover 2. The rear flap 25 has an edge rectilinear lower 26 and a rectilinear upper edge 27. The edges of the flap 25 thus delimit a cylindrical sector having a height slightly greater than the height h of the window 15.

The housing also comprises a left side plate 28 Including ventilation openings 29 having suitable dimensions to form a screen for electromagnetic waves emitted by the transmitting member 3. The left side plate 28 is removably mounted on the cover 2 by means of screws 30 passing through the lateral plague 28 and fixed to gussets 31 carried by the cover 2.

When mounting the device according to the invention in the workshop, the axis of 19 of the front flap 20 is engaged in the bearing 18 and is kept engaged by a knob 32 fixed to one end, external to the housing, of the pivot axis 19 Similarly, the pivot axis 24 of the rear flap 25 is engaged in the bearing 23 and is kept engaged in this bearing by a thumbwheel 33 fixed to one end, external to the housing, of the pivot axis 24. The flaps 20 and 25 are thus mounted cantilevered with respect to the side plate 16, and can pivot around an axis parallel to an axial direction of the cylindrical part. The rotational position of the flaps 20 and 25 is determined by acting on the knobs 32 and 33.

The flaps are then engaged under the cover 2 and the side plate 16 is fixed to the cover 2 by welding. The cover 2 is fixed to the lower plate 1 by welding the edges 10 and 11 to each other on the one hand, and the edges 12 and 13 on the other hand, or by keeping them in contact with others. means eliminating an electromagnetic leak. The device is then ready to receive the member for emitting electromagnetic waves 3. After the fitting of the sending member 3 followed by the fitting of the side plate 28, the housing constitutes a cage for Faraday around the electromagnetic wave emission member 3 with the exception of windows 14 and 15.

When the slots 14 and 15 are closed by the flaps 20 and 25, the power of the scattered wave is reduced by more than 99% so that the reception of a signal is limited to a few meters. From this position, the flap 20 and / or the flap 25 are operated in an opening direction as a function of the distance and the direction in which the user is located relative to the emission member 3. A As an example, in the closed position of the shutter 20, the step 34 and the lower part of the step 35 close the window 14. When the dial 32 is turned clockwise, half of the window 14 which is closest to the thumbwheel 32 is gradually released until the upper edge of the step 34 coincides with the lower edge of the window 14. The steps of the shutter 20 therefore constitute an easy mark of the position of the shutter. If the rotation of the thumbwheel 32 is continued, the window 14 is completely cleared when the upper edge of the step 34 reaches the lower edge of the window 14. If it is desired to go directly from the closed state of window 14 to a completely cleared state, it suffices to turn the dial 32 anti-clockwise, until the lower edge of the shutter 20 coincides with the upper edge of the window 14. The dimensions of the windows are preferably calculated in a manner known per se so that the waves emitted are in propagative mode.

Of course, the invention is not limited to the embodiment described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims. In particular, although the invention has been described in relation to shutters having straight edges or in staircase fashion, it is also possible to carry out the invention with shutters having an edge inclined relative to the edge of the window so that it is possible to vary the scattering power continuously.

Likewise, although the invention has been described in relation to a cover having cylindrical parts, and flaps of corresponding shape, the invention can be carried out with a rectangular housing, or having any other shape, with flaps of shape corresponding to form an electromagnetic screen in the window parts covered by a shutter

Although the invention has been described in relation to a cover 2 having only two windows arranged horizontally, it is possible to carry out the invention with vertical windows, which makes it possible to better orient the direction of the emission.

Although the invention has been described in relation to a cover comprising substantially rectangular windows, it is possible to carry out the invention with windows having at least one stepped edge, associated with shutters having straight or stepped edges depending on the configurations. that we want to privilege. The device according to the invention can also be produced with circular windows.

Claims (9)

1. Device for the controlled diffusion of electromagnetic waves from an organ (3) for emitting electromagnetic waves arranged in a housing, characterized in that the housing has a Faraday cage structure and comprises at least one window (14,15) having dimensions suitable for allowing the electromagnetic waves emitted by the transmitting member to pass, and a flap (20,25) impermeable to electromagnetic waves, mounted movable relative to the window between a first position in which the window is completely covered by the shutter and a second position in which the window is at least partially uncovered. 2. Device according to claim 1, characterized in that in the second position of the flap (20) the window (14) is half uncovered, and in that the flap comprises a third position in which the window is completely uncovered. 3. Device according to claim 2, characterized in that the shutter (20) and / or the window has an edge (22) in staircase. 4. Device according to claim 3, characterized in that the flap (20) has a stepped edge having steps whose height is equal to the height of the corresponding window. 5. Device according to claim 1, characterized in that the housing comprises a first window (14) on a first side of the housing, and a second window (15) on a second side of the housing, opposite the first side. 6. Device according to claim 1, characterized in that the window (14,15) is made in a cylindrical part (8,9) of the housing, and the flap (20,25) is mounted to pivot around a direction axial of the cylindrical part. 7. Device according to claim 1, characterized in that the housing comprises a lower plate (1) having an inverted L-shaped part forming an upward recess, having a horizontal portion (5) having ventilation openings. 8. Device according to claim 7, characterized in that the recess comprises a vertical portion (6) comprising cable passage openings (7). 9. Device according to claim 1, characterized in that the flap (20,25) is mounted cantilevered on a side wall (16) of the housing. 3061 ^ ²⁸