KR101636922B1

KR101636922B1 - Door for EMP shielding

Info

Publication number: KR101636922B1
Application number: KR1020140186611A
Authority: KR
Inventors: 김창식; 박인호
Original assignee: 주식회사 대호테크; 박인호
Priority date: 2014-12-22
Filing date: 2014-12-22
Publication date: 2016-07-20
Also published as: KR20160076413A; WO2016105057A1

Abstract

The present invention relates to a door for shielding electromagnetic interference (EMI), in which a first door and a second door are provided in a door form of a door frame of an electromagnetic wave shielding room so as to open and close a shielding room, wherein a door groove is formed in a periphery of the door frame, And a first engagement protrusion and a second engagement protrusion are formed on the inner peripheral edge of the first door and the second door, respectively, the first engagement protrusion and the second engagement protrusion being fitted to the door groove, The upper and lower ends of the first coupling protrusions are formed as protruding connection portions, and the connection recesses are formed on the outer side surfaces of the upper and lower connection portions to form vertically The first door being connected by a door groove; The second engagement protrusion formed on the outer periphery of the rear surface is formed in a rectangular shape as a whole and the free end of the door is partially overlapped with the outer free end of the first door such that when the door is closed, The second door being adapted to be continuously fitted and coupled to the door groove and the connection groove of the second door and the door groove; And the like.

Description

[0001] Door for EMP shielding [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic pulse (EMP) shielding door for opening and closing an entrance of an electromagnetic wave shielding room as well as an electromagnetic pulse (EMP) And the door can be more tightly sealed so that more reliable electromagnetic pulses and electromagnetic waves can be blocked.

As a result of the development of electric and electronic devices, most of the daily lives are exposed to a large amount of electromagnetic waves. As is known, these electromagnetic waves are known to adversely affect not only the human body but also other electric and electronic products. Generate strong electromagnetic pulses to neutralize the public network, power grid, communication network, logistics network, and weapons system.

Accordingly, an electromagnetic wave shielding room for testing whether electromagnetic waves are generated for a corresponding product in the course of production of various industrial products such as various electric and electronic products, automobiles, etc. is used.

In addition, electromagnetic pulses and electromagnetic wave shielding rooms have a structurally perfect shielding structure for high power electromagnetic shielding and airtight protection for military purposes. However, since the electromagnetic wave is likely to flow in and out from the door portion of the shielding room due to its structural characteristics, More tight and tight sealing between the sides is required.

In order to accomplish this, various studies have been conducted on the joint between the shielding door and the door frame of the shielding room, so that various techniques have been proposed for tightly connecting the shielding door and the shielding door frame. A shielding door having a male and female engaging structure in which engaging portions of the shielding door are engaged with each other to provide a firm close contact is widely used.

In order to cut off the electromagnetic waves in the door, a shielding member made of a copper plate was provided at a joint portion between the door of the shielded room and the door to attempt to shield electromagnetic waves from the shielded room.

However, in general, the conventional door for a shielding room is mostly formed as an outer door. Since the door in the form of an outer door can not provide a sufficient opening space, many inconveniences have been incurred when entering and exiting various materials and utensils.

Nevertheless, it was not possible to apply shielding door of double-sided type because it was not possible to shield electromagnetic waves due to the fact that shielding of the facing parts of both doors could not be done.

In order to solve such a problem, a sliding door made of a sliding door has been used, which shields the entrance of the shielding room while providing a wide opening space. However, it requires a lot of working space for opening the door, And a long period of time is required. In particular, there is a problem in that the door can not respond to a case where the operation of the door is slow and the door needs to be opened or blocked promptly.

Patent Document 1 corresponds to the prior art for solving the above-mentioned problems, and it can be understood that the shielding door is formed in a double-sided shape while the free ends of the doors are overlapped with each other to enhance the shielding effect.

Patent Document 1 discloses a door for an electromagnetic wave shielding room which is installed in a door frame of electromagnetic wave shielding to open and close the entrance and exit of a shielding room, wherein the door includes a first door and a second door, And the first recess and the second recess are formed at the respective ends of the first door and the second door which are in contact with each other so as to protrude in different sizes so that the door is closed. Wherein one of the first recess and the second recess is fitted and joined to the other recess.

In this patent document 1, each door and the door frame are shielded by concave / convex engagement, and at the same time, a first recessed portion and a second recessed portion having different sizes are formed on the free ends of the first door and the second door, Thereby shielding electromagnetic waves from being generated while securing a wide open space.

However, in Patent Document 1, electromagnetic waves can be shielded at the overlapping portion of the first door and the second door. However, at the contact portion between the overlapping portion of the first door and the second door and the door frame, And it was merely a technique that was difficult to use after all.

Therefore, the present applicant has developed a door for shielding, which can secure a wide open space by applying a twin-lid door and perfectly close the door frame and doors, and shield electromagnetic waves.

1. Korean Patent Publication No. 10-2011-0131882

Disclosed is a door for an electromagnetic wave shielding door which is formed in a double-sided shape so as to secure a wider open space at an entrance of a shielded room and can reliably block electromagnetic waves.

In order to realize the above-described object, the present invention provides a door frame of an electromagnetic wave shielding room, wherein a first door and a second door are provided in pairs to open and close a shielded room, wherein door frame grooves are formed in the periphery of the door frame, Wherein the first door and the second door have a first engaging protrusion and a second engaging protrusion formed on the inner periphery of the second door, respectively, the first engaging protrusion and the second engaging protrusion being engaged with the door groove, The upper and lower ends of the first engaging protrusion are formed as protruding connection portions, and the upper and lower ends of the upper and lower connecting portions are connected to each other, The first door being connected by a door groove formed vertically with a connection groove formed therein; The second engagement protrusion formed on the outer periphery of the rear surface is formed in a rectangular shape as a whole and the free end of the door is partially overlapped with the outer free end of the first door such that when the door is closed, The second door being adapted to be continuously fitted and coupled to the door groove and the connection groove of the second door and the door groove; The front end portion of the connection portion and the connection groove on the inner side thereof are inclined and the corresponding portion of the second coupling protrusion connected thereto is also inclined so that smooth connection is achieved.

According to the present invention, the first door closely contacted with the door frame continuously connects the connection groove and the door groove connected to the door frame, so that the second door is continuously connected to the door frame and the first door, Respectively.

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According to a preferred aspect of the present invention, the corresponding portion of the second engagement protrusion, which is fitted to the connection recess, is formed to have a thickness smaller than that of the other portion of the second engagement protrusion and has a door groove, The width variation of the light-emitting element.

Shielding members are continuously provided inside the door groove, the connection groove and the door groove, so that the electromagnetic wave is blocked.

According to still another aspect of the present invention, the sizes of the first door and the second door are different from each other.

In the present invention, the door groove, the connection groove, and the door groove may be selected as a cross section such as a "C" shape or a "B" shape.

The present invention provides an effect of securing an open space of a wider entrance while securing a reliable electromagnetic wave shielding, thereby achieving a reduction in manufacturing cost and period, and a door can be opened and closed quickly Thereby enhancing the functions of the shielding room and the shielding door.

1 is a front view showing an example of a door for a shielding room according to the present invention;
2 is an exploded perspective view of a door for a shielding room and a door frame according to the present invention.
3 is a perspective view showing an inner surface of a first door according to the present invention;
4 is a rear view showing an inner side surface of the first door.
5 is a perspective view showing an inner surface of a second door according to the present invention.
FIG. 6 is a plan view showing a coupled state of a shielding door according to the present invention. FIG.
FIG. 7 is a side view showing a concave portion of the present invention. FIG.
8 is a partial cross-sectional view showing another embodiment of the present invention.
Fig. 9 is a main oblique view showing the engaged state in the closed state. Fig.
10 is a schematic plan view showing a state in which the second door is opened;
11 is a schematic plan view showing a state in which all the doors are opened;
12 is a perspective view of the main door with the first door opened;
13 is a sectional view of the main part showing the operating state of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a front view showing an example of a door for a shielding room according to the present invention, FIG. 2 is an exploded perspective view of a door for a shielding room and a door frame according to the present invention, FIG. 3 is a perspective view showing an inner side face of the first door according to the present invention, 5 is a perspective view showing an inner side surface of the second door according to the present invention. FIG. 6 is a side view of the door according to the present invention. And FIG. 7 is a side view showing the recessed portion of the present invention.

Referring to Figs. 1 to 7, the present invention is characterized in that the door is formed in a double door form comprising a first door 10 and a second door 20, and is provided in a door frame 1 forming an entrance of a shielded room, .

That is, both the outer ends of the first door 10 and the second door 20 as the fixed ends are mounted on the door frame 1 with the hinges 30 and rotated, and the inner ends contacting with each other are free ends, And the opening of the shielding room is opened and closed.

In the peripheral edge of the door frame 1 and each of the doors 10 and 20, a coupling means in the form of a groove and a projection is formed for close connection. The door frame 2 is formed on the outer periphery of the door frame 1, When the first and second engagement protrusions 11 and 21 are protruded from the outer circumferences of the inner surface of the first door 10 and the second door 20 to close the respective doors, (11) and the second engagement protrusion (21) are fitted in the door recess (2) of the door frame (1).

When the first door 10 and the second door 20 are closed, the free ends of the two doors are partially overlapped. The first door 10 is located inside and the second door 20 is located outside As shown in FIG.

The first coupling protrusions 11 of the first door 10 are formed as a whole in the shape of ''] at the outer periphery of the first door 10 as shown in the rear view of FIG. 4, And the second engagement protrusion 21 of the second door 20 is formed as a rectangle which is entirely connected to the outer periphery of the second door 20.

An inner side surface of the door recess 2 in which the first and second engaging protrusions 11 and 21 of the doors 10 and 20 are fitted is formed with a shielding member made of a copper plate, The elastic piece 40 is continuously provided.

When the door is coupled to the door frame 1, the first engaging protrusion 11 and the second engaging protrusion 21 are elastically brought into close contact with the resilient piece 40 while being fitted into the door recess 2, 40, the electromagnetic wave is shielded and elastic binding is performed at the same time.

The upper end and the lower end of the first coupling protrusion 11 located at the free end of the first door are formed of a connecting portion 12 projecting further in an inclined shape. The connecting portion 12 is connected to the door recess 2 And a part of the second engaging protrusion 21 of the second door 20 is formed in the connecting groove 13 so as to be in contact with the first engaging protrusion 11. [ Respectively.

The upper and lower connecting grooves 13 are horizontally formed on the outer surface of the first door 10 and are connected to each other vertically by the door groove 14 so that continuous grooves are formed on the outer surface of the first door 10 When the first door 10 is coupled to the door frame 1, the door groove 2, the connection groove 13 and the door groove 14 form a continuous rectangular groove, The second engagement protrusion 21 of the second door 20 is fitted into the second door 20 at the same time.

The elastic piece 40 made of a copper plate is provided continuously to the inside of the connection groove 13 and the door groove 14 in the same manner as the door groove 2 to induce elastic binding with the second door 20, Is interrupted.

The distal end portion of the connecting portion 12 and the connecting groove 13 on the inner side thereof are inclined and the connecting portion 22 of the corresponding second connecting protrusion 21 is also inclined, The connection section 22 inserted into the groove 13 is formed to be thinner than the other sections of the second coupling protrusions 21 so that the connection groove 22 and the connection groove 13 in the width direction.

In other words, the thickness of the other section of the second joint protrusion 21 has a thickness corresponding to the door groove 2, and the thickness of the connection section 22 is formed to have a thickness corresponding to the connection groove 13.

6 and 7 schematically show the cross-sectional state of the first door 10 and the second door 20 when they are coupled to the door frame 1 in a plan view and a side view in particular, The first coupling protrusion 11 is fitted in the door groove 2 and the coupling groove 13 of the connection portion 12 provided on the outside of the coupling groove 12 The second engagement protrusion 21 is fitted into the second engagement protrusion 21.

The upper and lower sides of the first door 10 are provided with latches 15 which are inserted into the fixing grooves 3 of the door frame 1 and fix the door by rotation, And a latch 23 is provided on the inside of the first door 10 so as to be coupled to the fixing groove 16 formed on the outer surface of the first door 10.

The latches 15 and 23 are operated by a motor, but manual operation may be possible.

Although the door groove 2, the connection groove 13, the door groove 14 and the like according to the present invention are shown as a "C" -type groove, the shape of the groove may be changed as needed 8 shows one example. That is, the cross-sectional shape of the door groove, the connection groove, the door groove and the like is 'A' type, the elastic piece 40 is provided on the inner side wall thereof, Shielding can be achieved.

Hereinafter, the operation of the present invention will be described.

Fig. 9 is a perspective view showing a coupled state in a closed state. Fig. 10 is a schematic plan view showing a state in which the second door is opened. Fig. 10 is a schematic plan view showing a state in which the connection portion 12 is engaged with the door groove 2, 11 is a schematic plan view showing a state in which all the doors are opened, FIG. 12 is a main part perspective view showing a state in which the first door is opened, and FIG. 13 is a main sectional view showing the operation state of the present invention.

6 and 9, the first and second coupling protrusions 11 and 21 of the first door 10 and the second door 20 are engaged with the door recesses 2 9 and 13 (a), the connecting portion 12 is fitted into the door groove 2, and the second coupling protrusion (second coupling protrusion) 12 is inserted into the connection groove 13 of the connecting portion 12 21 are inserted into the connection section 22. [

When the second door 20 is opened as shown in Fig. 10 while the doors are fully engaged, the second engagement protrusion 21 of the second door 20 is disengaged from the door recess 2, The connection section 22 is separated from the connection groove 13 as shown in Fig.

The first door 10 and the second door 20 may be different from each other depending on the use of the shielded room, The door can be operated more efficiently.

That is, if the second door 20 is configured to be larger than the first door 10 as shown in the drawing, it is possible to pass objects of a certain size as well as people, and only when a larger capacity of the open space is required, (10) can be opened and used.

12 and 13 (c) show a state in which the connecting portion 12 is separated from the door groove 2 when the first door 10 is opened, .

As a result, the connecting portion 12 and the connecting groove 13 smoothly connect the door groove 2 and the door groove 14 of the first door 10 in an inclined manner, so that the second coupling 20 of the second door 20 The protruding portion 21 is provided with a passage through which the door 1 and the first door 10 can be continuously connected to each other, thereby providing an overall seamless structure.

The embodiments described and illustrated above are not intended to limit the scope of the present invention, but merely as exemplifications of the elements recited in the claims of the present invention. For example, various shapes and sizes of doors, coupling protrusions, connection portions, and the like to which the present invention is applied may be changed as needed, and a variety of known shielding members may be applied.

1: door frame 2: door frame
3, 16: fixing groove 10: first door
11: first coupling protrusion 12: connection
13: connection groove 14: door groove
15, 23: latch 20: second door
21: second coupling protrusion 22: connection section
30: hinge 40: elastic piece

Claims

A first door and a second door are provided on the door frame of the electromagnetic wave shielding room in a pair of openings to open and close the shielding room. The door frame is formed at the periphery of the door frame, and the inner periphery of the first door and the second door And a first engaging protrusion and a second engaging protrusion are formed in the door frame, respectively,
The first engaging protrusion formed on the outer periphery of the back surface is formed as a whole, so that it is not formed on the free end side of the door, and the upper end and the lower end of the first engaging protrusion are formed as projecting- The first door being connected to the upper and lower connecting portions by a vertically formed door groove formed on an outer side surface of the upper and lower connecting portions;
The second engagement protrusion formed on the outer periphery of the rear surface is formed in a rectangular shape as a whole and the free end of the door is partially overlapped with the outer free end of the first door such that when the door is closed, The second door being adapted to be continuously fitted and coupled to the door groove and the connection groove of the second door and the door groove; And,
Wherein the front end of the connecting portion and the connecting groove on the inside thereof are inclined and the corresponding portion of the second connecting protrusion connected thereto is inclined so that smooth connection is established.

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The method according to claim 1,
The corresponding portion of the second engaging protrusion that is fitted to the connecting groove is formed to be thinner than the other portion of the second engaging protrusion so as to correspond to the width deviation of the door groove and the connection groove to be positioned inside the door groove Features an EMC shielding door.

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