KR101226425B1 - radio frequency selection apparatus for shielding electromagnetic pulse - Google Patents

Abstract

The radio frequency shielding device for electromagnetic pulse shielding of the present invention blocks the radio wave propagation by the electromagnetic pulse even if the radio frequency signal for communication with the protection room is disturbed by the electromagnetic pulse generated during the explosion of the nuclear bomb or the electromagnetic bomb, It is possible to output only the radio frequency signal of a specific frequency band for communication in the protection room to communicate with the outside even in the protection room, it is possible to block the radiation wave by the electromagnetic pulse.

Description

Radio frequency selection apparatus for shielding electromagnetic pulse

The present invention relates to a radio frequency shielding device for electromagnetic pulse shielding, and in particular, even if a radio frequency signal is disturbed in communication with a protection room by an electromagnetic pulse generated when an explosion of a nuclear bomb or an electron bomb occurs, And a radio frequency selection device for shielding electromagnetic pulses, which is capable of communicating with the outside even in a protection room by outputting only radio frequency signals of a specific frequency band for communication with the protection room, and blocking electromagnetic waves caused by electromagnetic pulses. will be.

Electromagnetic Pulse (EMP) refers to a pulse having a large energy naturally or artificially generated, and is a powerful pulse of energy generated during an explosion of a lightning strike, a nuclear bomb or an electron bomb.

Such electromagnetic pulses flow into the circuits of electronic equipment by taking power lines or various signal lines, disturbing communication networks, or destroying electric and electronic devices.

In order to prevent electric and electronic devices from being damaged by electromagnetic pulses, protection rooms are installed in important facilities.

In general, a wireless LAN for a communication network uses a radio frequency band of 900 MHz, 2.4 GHz or 5 GHz, and a mobile phone uses a radio frequency band such as 800 MHz or 1.8 GHz.

In the conventional case, a frequency selection circuit using active elements is used to select and output a signal of a specific frequency band among a plurality of radio frequency signals received through a communication network. However, such active elements are radiated and propagated by electromagnetic pulses. By not passing only the signal of a specific frequency band, this causes the radio frequency signal of the communication frequency band to be disturbed by the electromagnetic pulse, which can interrupt communication with the outside in the protection room, and thus cannot function as a protection room. I have a problem.

An object of the present invention includes a rotating body which is coupled to pass through a plurality of matching filters passing only a specific frequency band different from each other and shields the electromagnetic pulse, the matching filter surrounded by the rotating body is blocked the jamming by the electromagnetic pulse, Any one of a plurality of matching filters is selected by the rotation of the rotating body so that only the radio frequency signal for communication with the inside of the protection room is output to the inside of the protection room so that the radio frequency signal for communication is disturbed by the electromagnetic pulse. The present invention provides a radio frequency selection device for electromagnetic pulse shielding which can be prevented and communicated with the outside even in a protective room.

In order to achieve the above object, the electromagnetic pulse shielding radio frequency selection device of the present invention selects only a radio frequency signal for communication with a protective room installed to shield electromagnetic pulses and outputs the radio frequency shielding radio inside. CLAIMS 1. A frequency selection device, comprising: an enclosure; A first substrate disposed inside the enclosure and provided with a receiver configured to receive the radio frequency signal passing through one side of the enclosure; A second substrate disposed inside the enclosure and having an output unit configured to output a radio frequency signal passing through the other side of the enclosure into the protection chamber; A first insulator disposed in the enclosure and having a first contact electrically connected to a receiver of the first substrate; A second insulator disposed in the enclosure and having a second contact electrically connected to an output of the second substrate; A ground portion made of a conductor is formed in the center portion, and first and second connections made of conductors are formed at both ends thereof, and a first insulation is electrically insulated from the ground portion and the first connection portion between the ground portion and the first connection portion. And a second insulating part is formed between the ground part and the second connection part so as to be electrically insulated from the ground part and the second connection part, and the first connection part and the second connection part are electrically connected to each other. A plurality of matching filters passing only a frequency band; It is arranged rotatably through the rotating shaft and the rotation means inside the enclosure, coupled to the ground portion of the plurality of matching filters are coupled to pass through, the matching filter of any one of the matching filters is selected by rotation, the selected matching The first connection part of the filter is in contact with the first contact of the first insulator, and the second connection part of the selected matching filter is in contact with the second contact, and the radio frequency of a specific frequency band among the radio frequency signals received at the receiver is A rotating body outputting a signal to the output unit; A first insulating plate disposed between the rotating body and the first insulator and coupled to penetrate through the first connection part and the first insulating part of the plurality of matching filters, the first insulating plate being rotated according to the rotation of the rotating body through the rotating shaft; And a second insulating plate disposed between the rotating body and the second insulator and coupled to penetrate the second connection part and the second insulating part of the plurality of matching filters, and rotated according to the rotation of the rotating body via the rotation axis. Characterized in that provided.

In addition, the rotor is formed of a conductor to shield the electromagnetic pulse is connected to the ground voltage, characterized in that the grounding portion of the matching filter has a ground voltage by the rotor connected to the ground voltage.

In addition, the rotating means includes a tooth portion formed with a plurality of teeth on a portion of the rotating body; And it characterized in that it comprises a drive motor for rotating the drive teeth engaged with the tooth portion.

Radio frequency selection device for electromagnetic pulse shielding of the present invention is coupled to pass through a plurality of matching filters that pass only a specific frequency band different from each other and has a rotating body shielding the electromagnetic pulse, the matching filter surrounded by the rotating body to the electromagnetic pulse The jammer is blocked, and any one of the plurality of matching filters is selected by the rotation of the rotating body to output only the radio frequency signal for the communication with the inside of the protection room. By preventing the radio frequency signal from being disturbed, it is possible to prevent the loss of communication with the outside even in the protection room, and by selecting and replacing the matching filter to output only the signal of the desired frequency band inside the protection room for communication with the outside of the protection room. The matching filter can be changed even if the frequency band of the communication line is changed. It can be used interchangeably, so a wide range of frequencies can be selected for communication outside the protective room.

1 is a schematic diagram of a radio frequency selection device for electromagnetic pulse shield of the present invention,
2 is a cross-sectional view of a radio frequency selection device for electromagnetic pulse shield of the present invention,
3 is a combined perspective view of a radio frequency shielding device for electromagnetic pulse shielding of the present invention excluding the housing and the first and second substrates;
FIG. 4 is an exploded perspective view of FIG. 3,
5 is a cross-sectional view of FIG. 4,
6 is a perspective view of a rotating body combined with the matching filters and the rotating shaft of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the radio frequency shielding device for electromagnetic pulse shielding of the present invention.

As shown in FIGS. 1 to 6, the RF pulse shielding apparatus for electromagnetic pulse shielding according to the present invention is disposed inside the enclosure 10 and the enclosure 10, and a radio frequency signal penetrating one side of the enclosure 10. An output unit for outputting a radio frequency signal passing through the other side of the housing 10 and the inside of the housing 10, the first substrate 20a provided with a receiving unit 21a for receiving the inside of the protective room ( First insulator 30a having a second substrate 20b provided with 21b and a first contact 31a disposed in enclosure 10 and electrically connected to receiver 21a of first substrate 20a. And a second insulator 30b disposed in the enclosure 10 and having a second contact 31b electrically connected to the output portion 21b of the second substrate 20b, and a plurality of matching filters 40. And the rotor 50 and the rotor 60 and the first insulator 30a, the first connecting portion 43a and the first insulator 45a of the plurality of matching filters 40 Combine to penetrate For example, a plurality of matching filters 50 may be disposed between the first insulating plate 60a and the rotating body 50 and the second insulator 30b that rotate according to the rotation of the rotating body 50 through the rotating shaft. The second connecting portion 43b and the second insulating portion 45b are coupled to each other, and are configured as a second insulating plate 60b that is rotated according to the rotation of the rotating body 50 through the rotating shaft.

In the matching filter 40, a ground part 41 made of a conductor is formed at a central portion thereof, and first and second connection parts 43a and 43b made of a conductor are formed at both ends thereof, and the ground part 41 and the first connection part ( The first insulation portion 45a is formed between the ground portion 41 and the first connection portion 43a so as to be electrically insulated from the ground portion 41a, and the ground portion 41 is disposed between the ground portion 41 and the second connection portion 43b. ) And the second insulating portion 45b are formed to be electrically insulated from the second connecting portion 43b, and the first connecting portion 41a and the second connecting portion 41b are electrically connected to each other, and pass only different specific frequency bands. Let's do it.

The rotating body 50 is rotatably disposed within the housing 10 via the rotating shaft 70 and the rotating means. The rotating body 50 is coupled to penetrate through the ground portions 41 of the plurality of matching filters 40 to rotate. One of the matching filters 40 is selected by the matching filter 40, and the first connection part 43a of the selected matching filter is in contact with the first contact 31a of the first insulator 30a. The second connection unit 43b is in contact with the second contact point 30b and outputs only a specific radio frequency signal of the radio frequency signals received by the receiver 21a to the output unit 21b.

In addition, the rotating body 50 is formed of a conductor to shield the electromagnetic pulse is connected to the ground voltage (Vs), the ground portion 41 of the matching filter 40 is the rotating body 50 connected to the ground voltage (Vs) Has a ground voltage (Vs).

In addition, contact portions of the first and second connection parts 43a and 43b and the first and second contact points 31a of the matching filter 40 may be formed in an uneven shape.

In addition, the rotation means has a plurality of teeth (81a) is formed on a portion of the rotating body 50, the teeth 81 arranged to be exposed to the outside of the housing 10, and is disposed outside the housing 10 It consists of a drive motor 85 for rotationally driving the drive tooth 83 meshed with the tooth portion 81.

In addition, the rotating body 50 further includes a supporting means 90 for supporting the matching filters 40, wherein the supporting means 90 has a first groove 51 formed around the outer circumferential surface of the rotating body 50. And arranged to be accommodated in the first groove 51 to impart elastic support to the matching filters 40.

The operation of the radio frequency shielding device for electromagnetic pulse shield of the present invention according to the above configuration is as follows.

As shown in FIGS. 5 and 6, the matching filter 40 of the present invention has a ground portion 41 formed of a conductor at a central portion thereof, and first and second connections 43a and 43b formed of a conductor are formed at both ends thereof. The first insulating portion 45a is formed between the ground portion 41 and the first connection portion 43a so as to be electrically insulated between the ground portion 41 and the first connection portion 43a. And a second insulating portion 45b is formed between the second connecting portion 43b and the ground portion 41 and the second connecting portion 43b so as to electrically insulate the first connecting portion 41a and the second connecting portion 41b. The coil L and the capacitor C are electrically connected therebetween, so that the matching filter 40 passes only a specific frequency band determined by the coil L and the capacitor C. The matching filter 40 is a radio frequency signal of various bandwidths for the communication input to the first connector 41a, for example, a radio frequency of a communication frequency band such as 800 MHz, 900 MHz, 1.8 GHz, 2.4 GHz or 5 GHz. The values of the coils L and capacitors C of the matching filters 40 are selected to select one radio frequency signal from among the signals and output the selected radio frequency signal to the second connector 41b. That is, any one of the matching filters 40 of the matching filters 40 respectively penetrated and coupled to the plurality of first coupling holes 53 of the rotating body 50 receives only a radio frequency signal of 800 MHz for communication. The other matching filter 40 and the coil L of the respective matching filters 40 to output only the 2.4 GHz radio frequency signal for output to the second connection part 41b. Determine the capacitor (C) value.

As such, the matching filter 40 outputs one of the radio frequency signals of the plurality of frequency bands to the second connection portion 41b through the first connection portion 41a.

As shown in FIGS. 3 to 5, the plurality of matching filters 40 may each include a plurality of first coupling holes 53 formed in the rotating body 50 and a second coupling hole 63a of the first insulating plate 60a. ) And the plurality of matching filters 40 are coupled to the rotating body 50 and the first and second insulating plates 60a and 60b by penetrating the third coupling holes 63a of the second insulating plate 60b. At this time, the ground portion 41 of the matching filter 40 is located inside the first coupling hole 53 of the rotating body 50 and the outer surface of the ground portion 41 of the matching filter 40 and the first coupling hole ( The inner surfaces of the 53 are in contact with each other, and the first connecting portion 41a and the first insulating portion 45a of the matching filter 40 are fitted to the inside of the second coupling hole 63a of the first insulating plate 60a. The second connecting portion 41b and the second insulating portion 45b of the matching filter 40 are fitted to the inside of the third coupling hole 63b of the second insulating plate 60b.

Therefore, since the rotating body 50 is formed of a material such as copper and is connected to the ground voltage Vs on the outer surface of the copper, the ground portion 41 of the matching filter 40 has a ground voltage Vs. It is electrically connected to the connected rotating body 50 has a ground voltage (Vs), the ground portion (41) of the rotating body 50 and the matching filter 40 are all supplied with a ground voltage (Vs), lightning, Even if an electromagnetic pulse having a strong energy generated when an explosion of a nuclear bomb or an electron bomb is generated, the jammer caused by the electromagnetic pulse is not transmitted to the matching filter 40 by the rotating body 50 formed of a copper material, but also the electromagnetic pulse. Is flowed to the ground voltage (Vs) by the rotating body 50 and the ground portion 41 of the matching filter 40, the matching filter 40 is not affected by the electromagnetic pulse.

Since the first and second insulating plates 60a and 60b are formed of ceramic, an insulating material, the first connection part 41a of the matching filter 40 is rotated by the first insulating plate 60a and the first insulating part 45a. The 50 and the ground part 41 are electrically insulated from each other, and the second connection part 41b of the matching filter 40 is rotated by the second insulating plate 60b and the second insulating part 45b. And the ground part 41 are electrically insulated from each other, so that the first connection part 41a and the second connection part 41b are not electrically affected by the rotating body 50 and the ground part 41, and the first connection part. Among the radio frequency signals input to the 41a, a radio frequency signal of a specific frequency band is output to the second connection unit 43a.

The rotating shaft 70 is coupled to the space formed at the center of the rotating body 50, and a plurality of teeth 81a are formed on a part of the outer surface of the rotating body 50, and are disposed to be exposed to the outside of the housing 10. The rotating body 50 is rotated by the rotating means which has the toothed part 81 formed, and has the drive motor 85 which drives the drive tooth 83 to engage with the toothed part 81, and the rotating body ( As the 50 is rotated, the first and second insulating plates 60a and 60b also rotate together. The drive motor 85 and the drive tooth 83 is preferably disposed in another enclosure 87 separate from the enclosure 10.

For example, when communicating with the outside of the protection room using a radio frequency signal of 2.4 GHz, which is a specific frequency band inside the protection room, radio frequency signals of various frequency bands are received through the receiver 21a as an antenna. The receiver 21a and the first contact pin 23a are electrically connected to the first substrate 20a.

A first contact 31a, which is a conductor, is formed on a portion of the first insulator 30a, and the remaining regions except for the first contact 31a are electrically insulated, thereby forming the first contact pin 23a and the first contact. The contacts 31a are electrically connected to each other so that radio frequency signals of various frequency bands are input to the first contacts 31a.

A signal is applied to the drive motor 85 inside the protection chamber to rotate the rotating body 50 to a desired position, and the first and second insulating plates 60a and 60b also rotate the rotating body 50 according to the rotation of the rotating body 50. 1) the first connection part of the selected matching filter 40 by selecting a matching filter 40 which is rotated as shown in FIG. 1 and can pass only a radio frequency signal of 2.4 GHz, which is a specific frequency band, among the plurality of matching filters 40. 43a is electrically connected to the first contact 31a of the first insulator 30a, and the second connecting portion 43b of the selected matching filter 40 is the second contact 31b of the second insulator 30b. Electrical connection with the

Accordingly, the specific filter selected by the matching filter 40 among radio frequency signals of various frequency bands received through the receiver 21a, the first contact pin 23a, the first contact 31a, and the first connector 43a. Only the 2.4 GHz communication radio frequency signal, which is a frequency band, is selected and output through the second connection unit 43b of the matching filter 40, and the 2.4 GHz communication radio frequency signal output through the second connection unit 43b is made of It is output through the second contact 31b and the second contact pin 23b electrically connected to the second connection part 43b to the output part 21b located inside the protection room. It is possible to communicate with the outside of the protective room by using the radio frequency signal for communication.

As described above, the driving motor 85 is operated in a protection chamber in which electromagnetic pulses generated during an explosion of lightning, nuclear bombs or electron bombs are shielded, thereby rotating the rotor 50 and the first and second insulating plates 60a and 60b. Since the matching filter 40 for outputting a radio frequency signal of a desired frequency band into the protection room is selected, and the matching filter 40 in the enclosure 10 located outside the protection room is not affected by electromagnetic pulses, By outputting a radio frequency signal in a specific frequency band, even if electromagnetic pulses are generated by lightning, nuclear bombs, or explosions of an electronic bomb, it is possible to prevent a loss of communication with the outside of the protective room within the protective room.

In addition, as shown in FIG. 5, the contact portions 33a, 49a (33b, 49b) of the first and second connectors 43a and 43b and the first and second contacts 31a and 31b of the matching filter 40 are also shown. The contact resistance of the first heat connection part 43a and the first contact part 31a, the second connection part 43b, and the second contact part 31b may be reduced by configuring the mutually uneven shape.

As shown in FIG. 6, the rotating body 50 matches the supporting means 90 such as an elastic spring for supporting the matching filters 40 with the first groove 51 formed around the outer circumferential surface of the rotating body 50. Inserted into the second groove 47 formed on the outer circumferential surface of the filter 40, the matching filter 40 is elastically supported by the support means 90 so that the matching filter 40 of the rotating body 50 When coupled to the first coupler 53, the matching filter 40 is prevented from being moved by the support means 90 to uniformly output the frequency characteristics of the matching filter 40. That is, when the matching filter 40 is mounted slightly inclined when the matching filter 40 is mounted on the first coupling hole 53, the coil L and the capacitor to pass the radio frequency signal through a specific frequency band desired by the user. Since the frequency characteristic of the matching filter 40 determined in (C) can be changed, it is possible to prevent the matching filter 40 from being inclined from the inside of the first coupling hole 53 by the support means 90. .

In addition, as shown in FIG. 5, in the electromagnetic pulse shielding radio frequency selecting apparatus of the present invention, the light emitting portion 25a is formed on the first substrate 20a, and the second substrate 20b is formed from the light emitting portion 25a. A light receiving portion 25b for receiving the light emitted is formed, and the light emitted from the light emitting portion 25a reaches the light receiving portion 25b so that the through hole 35a is disposed below the first and second insulators 30a and 30b. , 35b) and a plurality of second and third coupling holes 63a and 63b of the first and second insulating plates 60a and 60b and adjacent portions of the first coupling hole 53 of the rotating body 50. Through holes 65a, 65b, and 55 are formed, the first connection part 43a and the first point 31a or the second connection part 43b of the matching filters 40 selected by the rotation operation of the rotating body 50. When and the second contact point 31b is exactly matched, the light emitted from the light emitting portion 25a is transmitted to the light receiving portion 25b through the through holes 35a, 35b, 65a, 65b, 55, but the rotating body ( 50 rotates the selected matching filter 40 when the user Since the light emitted from the light emitting portion 25a does not reach the light receiving portion 25b when it is not in the correct position, the light emitted from the light emitting portion 25a continues until it is received by the light receiving portion 25b. The rotary body 50 is rotated by applying a rotation operation signal to the drive motor 85. As such, the matching filter 40 selected by controlling the rotation operation of the rotating body 50 by the light emitting unit 25a, the plurality of through holes 35a, 35b, 65a, 65b, 55, and the light receiving unit 25b is provided. It may be determined whether the user is aligned at the exact position desired.

Claims (5)

In the radio frequency shielding device for electromagnetic pulse shielding to select only the radio frequency signal for communication with the protective room installed to shield the electromagnetic pulse to the interior of the protective room,
Enclosure 10;
A first substrate 20a disposed inside the enclosure 10 and provided with a receiver 21a for receiving the radio frequency signal passing through one side of the enclosure 10;
A second substrate 20b disposed inside the enclosure 10 and provided with an output unit 21b for outputting a radio frequency signal penetrating the other side of the enclosure 10 into the protection chamber;
A first insulator (30a) disposed in the enclosure (10) and having a first contact (31a) electrically connected to the receiver (21a) of the first substrate (20a);
A second insulator (30b) disposed in the enclosure (10) and having a second contact (31b) electrically connected to an output (21b) of the second substrate (20b);
A ground portion 41 made of a conductor is formed in the center portion, and first and second connection portions 43a and 43b made of a conductor are formed at both ends thereof, and between the ground portion 41 and the first connection portion 43a. The first insulating part 45a is formed to be electrically insulated from the ground part 41 and the first connection part 43a, and the ground part 41 and the second connection part 43b are formed between the ground part 41 and the second connection part 43b. A second insulating portion 45b is formed to be electrically insulated from the second connecting portion 43b, and the first connecting portion 41a and the second connecting portion 41b are electrically connected to each other so as to pass only different specific frequency bands. A plurality of matching filters 40;
The housing 10 is rotatably disposed through the rotation shaft 70 and the rotation means, and the grounding portions 41 of the plurality of matching filters 40 are coupled to penetrate through the matching filter by rotation. The matching filter of any one of the 40 is selected so that the first connector 43a of the selected matching filter is in contact with the first contact 31a of the first insulator 30a, and the second connector of the selected matching filter is selected. The rotating body 50 which contacts the second contact point 30b and outputs a radio frequency signal of a specific frequency band among the radio frequency signals received by the receiver 21a to the output unit 21b. ;
It is disposed between the rotating body 60 and the first insulator 30a, the first connecting portion 43a and the first insulating portion 45a of the plurality of matching filters 40 are coupled so as to penetrate the rotating shaft. A first insulating plate 60a which is rotated according to the rotation of the rotating body 50 by a medium; And
It is disposed between the rotating body 50 and the second insulator (30b), the second connecting portion (43b) and the second insulator (45b) of the plurality of matching filters 50 are coupled to pass through, the rotation axis And a second insulating plate (60b) which rotates according to the rotation of the rotating body (50).
According to claim 1, wherein the rotating body 50 is formed of a conductor to shield the electromagnetic pulse is connected to the ground voltage (Vs), the ground portion 41 of the matching filter 40 is the ground voltage (Vs) RF frequency shielding device for electromagnetic pulse shielding, characterized in that it has a ground voltage (Vs) by a rotating body (50) connected to.
The electromagnetic wave shielding radio frequency of claim 1, wherein the contact portions of the first and second connection parts 43a and 43b and the first and second contact points 31a of the matching filter 40 are formed in an uneven shape. Optional device.
The method of claim 1, wherein the rotating means
A plurality of teeth (81a) is formed on a portion of the rotating body 50, the teeth portion 81 is disposed so as to be exposed to the outside of the housing (10); And
And a drive motor (85) disposed outside the enclosure (10) to rotate the drive teeth (83) engaged with the tooth parts (81).
The method of claim 1,
The rotating body 50 is further provided with a support means 90 for supporting the matching filter 40,
The support means 90 has a first groove 51 formed around the outer circumferential surface of the rotating body 50 and is arranged to be accommodated in the first groove 51 to provide elastic support to the matching filters 40. Radio frequency selection device for electromagnetic pulse shielding, characterized in that the provision.

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