KR20150037799A - Protecting Cabinet From EMP - Google Patents

Abstract

The present invention relates to a shielding structure of an electromagnetic pulse (EMP) protective cabinet and, more specifically, to a shielding structure of an EMP protective cabinet with an improved shielding function and an improved maintenance function. The shielding structure according to the present invention includes: multiple wall surfaces (12a, 12b, 13, 14, 15) made of a galvanized steel sheet; electromagnetic wave shielding vents (145, 155) formed respectively on the upper side of the rear surface (14) and the ceiling surface (15); a front door (131) and a rear door (141) installed to be open; a sign light (132) installed on the front door (131); and a grounding means (17) connected to an outer frame from the wall surfaces (12a, 12b, 13, 14, 15) or a floor surface. The electromagnetic wave shielding vents (145, 155) are formed into a net structure or a honeycomb structure.

Description

Protective Cabinet From EMP}

The present invention relates to an EMP protection cabinet, and more particularly to an EMP protection cabinet with enhanced shielding and maintenance functions.

An electronic bomb is an electro-magetic pulse (EMP) weapon capable of instantly generating high-power microwave energy to neutralize electronic devices. EMPs can also be generated, for example, by the explosion of atomic bombs or hydrogen bombs. For such EMP weapons, various techniques have been developed to protect, for example, computer equipment, database equipment, central control equipment for the control of various facilities or military command and command and control equipment with key documents.

Prior art related to EMP protection is Patent Registration No. 0990828 'EMP protection cabinet'. The prior art includes a body integrally formed by connecting and assembling a six-sided steel plate made of a conductive galvanized steel plate; A door made of the conductive zinc plated steel sheet and hinged to one side of the opened casing; An electromagnetic wave filter installed at a power line inlet of a power supply installed on an outer surface of the housing for filtering electromagnetic pulses flowing into a housing through a power line, Filter; A connector provided on the housing and having an EMP limiter for connecting an antenna to the electronic equipment to be protected inside the housing or for connecting a video signal and blocking a pulse; And an optical cable induction pipe penetrating the enclosure to prevent EMP of the optical cable by preventing the inflow of the pulse, the length of which is 5 times or more the diameter of the optical cable induction pipe; A gasket for improving conductivity is joined to both sides of the housing and a female screw is formed on an outer periphery of an optical cable induction pipe passing through the housing and the nut is threaded on both sides of the female screw to connect the optical cable induction pipe to the housing In which an EMP protection cabinet is installed.

Another prior art related to EMP protection is Patent Registration No. 1158861, "Bottom plate structure of EMP protection facility and its construction method". The prior art includes a desiccant; An electrical insulating material disposed on the moisture proof paper; A refractory tape attached along a portion corresponding to a joint of a steel plate disposed on the electric insulating material; And a plurality of steel plates disposed on the electrical insulating material to which the refractory tape is attached and welded to each other.

The EMP shielding apparatus proposed in the prior art has a problem that it is difficult to maintain or repair the equipment stored inside the EMP shielding apparatus or the EMP shielding can not be efficiently performed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and has the following objectives.

Prior art 1: Patent registration No. 10-0990828 EMP protection cabinet

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shielding structure of an EMP protection cabinet in which EMP chafing is efficiently performed and equipment maintenance or repair inside the protection facility is simple.

According to a preferred embodiment of the present invention, the shielding structure comprises a wall made of a plurality of galvanized steel sheets; An electromagnetic wave shielding vent formed on the top surface and the ceiling surface of the rear surface 14; A front door and a rear door installed to be openable and closable; Operation indicator installed on the front door; And grounding means connected to the outer frame from the wall surface or the bottom surface, wherein the electromagnetic wave shielding ventilation hole has a net structure or a honeycomb structure.

According to another preferred embodiment of the present invention, there is further provided a screen screen having a plurality of monitoring holes formed inside the front door or the rear door.

According to another preferred embodiment of the present invention, the electromagnetic wave shielding vent further includes a heat diffusion strip.

The shielding structure according to the present invention has an advantage of effectively shielding the EMP that can be externally applied while at the same time effectively protecting the internal facilities. In addition, the shielding structure according to the present invention has an advantage that it is simple to inspect or repair internal facilities.

FIGS. 1A and 1B schematically show an exploded view and a coupling view, respectively, of an embodiment of a shielding structure of an EMP protection cabinet according to the present invention.
FIG. 2A shows another embodiment of the cab structure of the protective cabinet according to the present invention.
FIG. 2B shows an embodiment of a shielding screen and a shielded ventilation which can be applied to a shielding structure of a protective cabinet according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

FIGS. 1A and 1B schematically show an exploded view and a coupling view, respectively, of an embodiment of a shielding structure of an EMP protection cabinet according to the present invention.

1A and 1B, a wall surface 12a, 12b, 13, 14, 15 made of a plurality of galvanized steel sheets; Electromagnetic wave shielding ventilation holes 145 and 155 respectively formed on the upper side of the rear surface 14 and the ceiling surface 15; A front door 131 and a rear door 141 installed to be openable and closable; An operation indicator 132 installed on the front door 131; And grounding means (17) connected to the outer frame from the wall surface (12a, 12b, 13, 14, 15) or the bottom surface. The electromagnetic wave shielding ventilation ports (145, 155) are made of a net structure or a honeycomb structure.

The cabinet structure according to the present invention may have a box shape in which a database server or an electronic equipment can be accommodated therein, and each of the wall surfaces 12a, 12b, 13, 14 and 15, for example, a galvanized steel sheet, Can be made of a material that can be used.

A plurality of racks for fixing the electronic device can be installed in the cabinet, and doors 131 and 141 that can be opened and closed at the front and rear sides of the cabinet can be installed. In general, equipment installed inside the cabinet may be installed at the rear of the distributor or wiring. Therefore, in order to inspect and repair the equipment inside the cabinet, the rear door 141 needs to be installed so as to be openable and closable.

The front door 131 may be opened or closed in any manner known in the art without limitation, for example, by opening and closing in the manner of a hinge 133.

Shielding ventilation holes 125, 135, 145 and 155 may be provided in upper portions of the respective wall surfaces 12a, 12b, 13, 14 and 15, as shown in Figs. 1A and 1B. The shielding ventilation holes 145 and 155 correspond to a device for circulating air between the inside and the outside of the cabinet while blocking electromagnetic waves.

Generally, this occurs from the equipment installed in the rack and occurs near the rear door 141, and the hot air rises upward. On the other hand, a fan (not shown) may be installed in the shielded ventilation openings 125, 135, 145 and 155, so that noise is likely to be generated. Therefore, it is advantageous that the shielded ventilation holes 125, 135, 145 and 155 are provided on the rear door 141 and the ceiling wall 155. Preferably, a fan may be installed in front of or behind the shielded ventilation openings 125, 135, 145,

The shielded ventilation holes 125, 135, 145, and 155 may be provided on the side surfaces 12a and 12b or the front surface 13, if necessary. The shielded ventilation openings 125, 135, 145 and 155 may be made of a conductive material such as aluminum or iron, for example. The shielded ventilation openings 125, 135, 145 and 155 may be made of a net structure or a honeycomb structure and may be fixed to the wall in a suitable manner.

The shielding ventilation holes 145 and 155 will be described below again.

An operation indicator 132 may be provided on the front door 131. The operation indicator 132 may indicate the operation state of the installed device inside and may have the function of an emergency indicator lamp. When the internal temperature or humidity deviates from a predetermined range, the operation indicator 132 may appear in a different color and generate an audible alarm if necessary. The operation indicator 132 may be, but is not limited to, an LED, for example.

A grounding terminal may be provided on a wire or cable that enters the interior of the cabinet structure, thereby protecting the internal device installed in the rack. However, since the cabinet structure is made of a conductive material, static electricity may be generated and leakage current may be generated for various reasons. Therefore, the grounding means 17 can be installed in the cabinet structure itself. The grounding means 17 may be, for example, a building ground or a frame ground, but the present invention is not limited thereto. The grounding means 17 is a conductive material that connects the wall surface to other parts of the building or to other grounding conductors. Grounding means of various structures can be applied to the cabinet structure according to the present invention.

A power distribution device 142 may be installed in the cabinet structure. The power distribution device 142 may be installed in accordance with methods known in the art. The power distributing device 142 may be installed below the bottom surface, and if necessary, the power distributing device 142 may be electronically shielded.

A filter 146 or a connector 143 may be installed in the cabinet structure according to the present invention to pass only frequencies within a certain frequency range. The filter 146 may be provided to block the EMP incoming from the power distribution device 142. [ On the other hand, can be connected to a connector 143, for example, an antenna, such as an antenna, for inputting signals from the outside.

A cable from the power distributing device 142 needs to be connected to the inner space 11. [ For this purpose, cable guide pipes 144a and 144b may be installed from the power distributing device 142 to the inner space 11. The cable guide pipes 144a and 144b can be made, for example, in the shape of a cylinder having a hollow cylindrical shape and made of a material such as a galvanized steel sheet capable of shielding electromagnetic waves. The cable guide pipes 144a and 144b may extend from the power distributing device 142 to the inner space 11 and may have a protective conduit of insulating material therein. And cables can be placed inside the protective conduit.

It is advantageous for the power distribution device 142 to have its own electromagnetic shielding structure. For example, the power distribution device 142 may be made of the same or similar structure as the protection cabinet. Specifically, the power distributing device 142 may have a galvanized wall surface and a shielded ventilation hole provided on at least one wall surface.

Another embodiment of the shielding structure of the protective cabinet according to the present invention will be described below.

2A shows another embodiment of a shielding structure of a protective cabinet according to the present invention.

2A, the shielding structure may further include a shielding screen 22 formed with a plurality of monitoring holes 221 and a heat diffusion strip 21 formed around the shielding ventilation holes 125 and 155.

Generally, a shielding structure is a sealed device, and an installed device or device inside the device corresponds to a device that consumes power. At the same time, at least part of the equipment or device must be operated at all times and may be a device sensitive to temperature or humidity. Therefore, it is advantageous to have a structure capable of sufficiently radiating heat generated from the inside to the outside. On the other hand, when the front door 131 is opened, it is advantageous to prevent access to the internal equipment or device directly.

According to the present invention, heat spreading strips 21 may be installed along the circumferential surfaces of the shielded ventilation openings 125, 155 to dissipate the heat inside the shielding structure to the outside and to prevent direct access to the internal apparatus A blocking screen 22 may be provided.

The heat diffusion strips 21 are installed along the circumferential surfaces of the shielding ventilation holes 125 and 155 while the shielding ventilation holes 125 and 155 assist the sealing of the shielding ventilation holes 125 and 155. At the same time, It is caused by the divergence.

On the other hand, if a plurality of monitoring holes 221 are formed in the blocking screen 22, the inside can be observed without opening and closing the blocking screen 22. Internal monitoring refers to monitoring the operating status of internal equipment or devices, such as for example a thermal monitoring device or an infrared device.

The blocking screen 22 may be hinged to, for example, a shielding structure so as to be opened and closed separately from the front door 131, but is not limited thereto. For example, the blocking screen 22 can be a sliding structure that can be opened and closed. As described above, in the shielding structure according to the present invention, the rear wall or rear door has a structure that can be opened and closed. Therefore, the blocking screen 22 can be installed in the rear door as required.

This is explained in detail below.

FIG. 2B shows an embodiment of a shielding screen and a shielded ventilator which can be applied to the shielding structure of a protective cabinet according to the present invention.

Referring to FIG. 2B, (a), the blocking screen 22 may be of a rectangular plate shape and preferably made of a conductive plate of a metal material. For example, the blocking screen 22 may be made of a plate of aluminum material. If the blocking screen 22 is made of aluminum material, it can have a heat shielding function and at the same time have a magnetic shielding effect. Preferably one end of the blocking screen 22 can be connected to the heat spreading strip.

The plurality of monitoring holes 221 formed in the blocking screen 22 can be made to have an appropriate size and distribution in which the inside can be observed and the present invention is not limited to the size or distribution of the monitoring holes 221. And the external connection grounding means 17a may be formed on the cut-off screen 22 on the lower side. The external connection grounding means 17a prevents the risk of contact while preventing the blocking screen 22 from being charged.

2B, the sealing means 23 can be formed along the peripheral surface of the shielded ventilation opening 25 and the heat spreading strip 21 is formed along the circumferential surface of the sealing means 23 . A plurality of heat pipes 211 penetrating the heat diffusion strip 21 may be disposed.

As described above, the shielded ventilator 25 can be made of a mesh structure of a metal material or a honeycomb structure of a metal material. If it is made of a net net structure or a honeycomb structure, a gap may be generated along the circumferential surface, and the electromagnetic wave shielding effect may be reduced. In order to prevent this, the peripheral surface of the net net structure or the honeycomb structure may be surrounded by the sealing means 23 having elasticity, for example, conductive fibers or fiber gasket. Conductive fibers are used for the shielding of electromagnetic waves.

As shown in the enlarged portion (A) of Fig. 2B (b), the heat radiating pipe 211 may have a tube shape having a circular cross section, and may be a hollow structure or a filled shape. The heat-radiating pipe 211 may preferably protrude above the surface of the heat-dissipating strip 21, and the different heat-radiating pipes 211 may have different shapes or different protrusion lengths. When the heat radiating pipe 211 protrudes outside the heat spreading strip 21, the heat radiating effect can be increased. Therefore, the degree of protrusion can be appropriately adjusted depending on the degree of heat generation inside the shielding structure.

The heat-radiating pipe 211 may be formed to vertically penetrate the heat-diffusing stream 21, for example, or may be made to be disposed on the upper portion of the heat-diffusing strip 21.

The heat spreading strip 21 or the heat radiating pipe 211 may all be made of a metal material and made of a material such as aluminum having a high thermal conductivity, for example.

A shielding screen 22 or heat spreading strip 21 having various structures can be applied to the shielding structure according to the present invention and the present invention is not limited to the embodiments shown.

The shielding structure according to the present invention has an advantage of effectively shielding the EMP that can be externally applied while at the same time effectively protecting the internal facilities. In addition, the shielding structure according to the present invention has an advantage that it is simple to inspect or repair internal facilities.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

11: inner space 12a, 12b: wall surface
13: Front 14: Rear
15: Ceiling surface 17: Grounding means
17a: external connection ground means 21: heat diffusion strip
22: blocking screen 23: sealing means
125, 135, 145, 155: Shielded ventilation holes
131: bottom door 141: rear door
211: Heat pipe

Claims (2)

Wall surfaces (12a, 12b, 13, 14, 15) made of a plurality of galvanized steel sheets;
Electromagnetic wave shielding ventilation holes 145 and 155 respectively formed on the upper side of the rear surface 14 and the ceiling surface 15;
A front door 131 and a rear door 141 installed to be openable and closable;
An operation indicator 132 installed on the front door 131;
Grounding means (17) connected to the wall surfaces (12a, 12b, 13, 14, 15) or the bottom surface to the outer frame; And
A plurality of monitoring holes are formed inside the front door 131 or the rear door 141 so as to monitor the internal operation state without being opened and closed, Screen 22,
Wherein the electromagnetic shielding ventilation holes 145 and 155 are formed in a net structure or a honeycomb structure and the shielding screen 22 is opened and closed separately from the front door 131 or the rear door 141. [ cabinet. The heat sink according to claim 1, wherein the sealing means (23) is formed along the circumferential surface of the electromagnetic wave shielding ventilation holes (145, 155), the heat spreading strip (21) is formed along the circumferential surface of the sealing means And a plurality of heat-radiating pipes (111) protruding through the inside of the casing (21) are disposed.

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