KR101932691B1 - Electromagnetic shield door with noise prevention means in a MRI room - Google Patents

Abstract

The present invention relates to a manual noise prevention swing electromagnetic wave shield door. According to the present invention, high soundproofing ability and shield ability are realized with respect to the shield door for a shield room, and the shield door primarily performs to shield a lower portion with soundproofing by a noise prevention shield finger unit when a shield door body is opened and closed on the basis of a door framework and a shield floor plate. Moreover, in the shield door body and the door framework, in addition to the noise prevention shield finger unit, second to fifth soundproofing packings are more embedded to fundamentally prevent gap noise, and in particular, in a door panel, a plurality of panels having various different types and thickness deviation are combined in the shape of sandwich plywood for sound insulation of various resonant frequency. Therefore, soundproofing ability and shield ability can be significantly improved.

Description

[0001] The present invention relates to a soundproof swing electromagnetic shielding door,

The present invention provides a high soundproofing and shielding property of a shielding door for a shield room. When the shielding door body is opened and closed with reference to a door frame structure and a bottom plate for shielding, The soundproof shielding finger unit and the second to fifth soundproofing packing are additionally provided on the main body of the shielding door and the frame structure so as to shield the gap noise. In particular, A plurality of panels with thickness variations are combined in sandwich plywood form to allow for various resonant frequencies to be sounded, which is characterized in that the soundproofing and shielding properties are greatly improved.

Shielding apparatus for shielding electromagnetic waves is installed in a shielding door in an MRI shielded room. Such a shielding door 20 is mounted on a door frame 10 by a hinge 21 provided on the door frame 10 as shown in FIGS. 6 to 10, It is installed to open and close the shield room by a hinged way.

The door frame 10 has a skeletal frame that connects the ends of the quadrangle, and a finger gasket 15 is formed on the inner side. When the door 20 is closed by the hinge 21, .

At this time, a lower shield gasket 32, which performs a shielding function upon contact with the door sill 11, is fixedly installed on the lower side as shown in FIG.

The shield gasket 32 includes a door lower finger gasket fixed molding 32-1 fixed to the lower edge of the shielding door 20 and a door lower finger gasket fixed molding 32-1 extended downward in the width direction at the door lower finger gasket fixed molding 32-1. And a curved portion 32-2 curved downward so as to surround the lower surface of the shielding door 20. [

In addition, the curved portion 32-2 is configured such that a tension force is maintained by placing a slit separation groove at a predetermined length.

At this time, the door sill 11 provided at a predetermined height on the bottom surface of the MRI room corresponding to the position where the shielding door 20 is locked has a curved portion 32-2 at the locking position, ), And such tension acts to continuously perform the shielding function of the door without error.

7, a finger gasket 15 is embedded in a side surface of the door frame 10 which supports the shielding door 20 which forms an entrance of the shield room. The hinge 21 is fixed to the door frame 10 The shielding door 20 is opened and closed on the basis of one side.

Therefore, the shielding door 20 forming the doorway of the shielding room is provided with the shielding door knife 25 on the corner side of the shielding door 20 as shown by the dotted line in the open state and the solid line in the closed state, The finger gasket mounting groove 14 formed at the corresponding portion of the frame 10 is provided so as to contain the finger gasket 15. When the dotted line is in the open state and the closed state is the same as the solid line position in Figures 6 and 7, And the door knife 25 is fitted to the finger gasket 15 so as to be shielded.

However, such a configuration is not suitable for the curved portion 32-2 between the bottom surface of the curved portion 32-2 of the shield gasket 32 attached to the lower end edge of the shielding door 20 and the door sill 11. [ There is a slit separation groove for each length, which causes a problem that the noise inside the MRI chamber serves as a path for transmitting the outside to the outside by the slit separation groove.

10 of the door sill 11 or a curved portion 32-2 curved downward convexly and convexly by an additional additional inclined plate is started to be pressed The curved portion 32-2 of the shield gasket 32 maintains a strong contact state when the shielding gasket 32 is closed and on the contrary when the shielding door 20 is opened, There is a problem in that it is tilted in the outward direction, which causes deterioration of the shielding performance and causes increase in noise.

In addition, a shield gasket is provided at four edges of the shielding door, and a shielding function is performed by pressing the shield gasket when the shielding door is closed at the bottom portion, as disclosed in Korean Patent Registration No. 10-1047999 and Korean Patent Registration No. 10-0771429 (WO2005025286) and US patents (US3507974 and US5214241). However, there is a problem in that the sensor fails to operate properly if the sensor is broken or the system is broken.

In addition, the shielding performance of the shielding door is low due to low sound insulation and soundproofing, and thus noise is generated around the shielding door.

1. Korean Patent Publication No. 10-2017-0074087 (published on June, 2017)

In order to solve the above-described problems, the present invention provides a high soundproofing and shielding property of a shielding door to a shield room. When the shielding door body is opened and closed with reference to a door frame structure and a bottom plate for shielding, The soundproofing unit is provided with a soundproof shielding finger unit and a second to fifth soundproofing packing to additionally provide a soundproofing shield to the shielding door main body and the door frame structure, A door panel is formed by sandwiching a plurality of panels having different kinds and thicknesses in a sandwich plywood form so as to be able to sound various resonance frequencies. This is because the soundproofing and shielding are greatly improved. The present invention has been made in view of the above problems.

Further, in the present invention, the soundproof shielding finger unit is designed to have a soundproof packing in a curved finger elastic plate inner space so that the soundproof packing does not directly touch the bottom plate surface for shielding, And the soundproof packing is smoothly adhered together with the expansion and contraction. This minimizes the occurrence of wear of the packing for sound insulation during shielding and soundproofing (surface contact friction occurs at the time of opening and closing), so that the service life is remarkably improved, Particularly, since the packing for internal soundproofing has a high elasticity structure, it is possible to double the pressure-contact performance against the finger elastic plate, and it is an object of the present invention to provide a greatly improved soundproofing and shielding property due to improved contactability.

In order to achieve the above object, the present invention is characterized in that a shielding door main body (20) which is opened and closed by a sliding method (hinge swing type or front and rear closing type) on the top surface of a shielding bottom plate (10) The door frame 21 includes a door frame 21 and a door panel 22 having a multi-layered sandwich structure. The door frame 21 is connected to the finger pockets 31 A knife 21-1 for performing shielding of the remaining three surfaces except for the bottom surface of the four surfaces is formed and the bottom surface of the four surfaces is matched with the shielding bottom plate 10 to shield and soundproof And a soundproof shielding finger unit (100) for performing the sound shielding finger unit (100) simultaneously.

" 인 형태로서, 문틀 골조의 끼움홈(32)에 대하여 고정단(210)이 삽입 결합되고, 도어 프레임(21)의 닫힘측 면과 닿는 신축단(220)은 복수의 터널 형태가 이어진 만곡면으로 형성되어 차폐도어 본체(20)의 닫힘시 속 빈 내부 공간(230)을 기준으로 탄성 밀착되면서 소음 경로를 차단하도록 형성된다.The second soundproof packing 200 is formed to have a length in one direction and a side surface in the shape of a side cross-section. The second soundproof packing 200 is formed on the side of the door frame 21, "

The fixed end 210 is inserted into the fitting groove 32 of the door frame frame and the extending and retracting end 220 contacting the closed side surface of the door frame 21 is formed into a curved surface having a plurality of tunnel shapes So as to block the noise path while elastically adhering to the hollow space 230 when the door 20 is closed.

" 인 형태로서, 도어 프레임의 결합홈(21-2)에 대하여 끼움단(310)이 삽입 결합되고, 문틀 골조의 닫힘측 대응면(33)과 닿는 탄성단(320)은 터널 형태의 만곡면으로 형성되어 차폐도어 본체(20)의 닫힘시 속 빈 내부 공간(330)을 기준으로 탄성 밀착되면서 소음 경로를 차단하도록 형성된다.The door frame 21 is formed such that the knife 21-1 is formed with a third soundproof packing 300 on the peripheral recessed surface corresponding to the finger pocket 31. The third soundproof packing 300 is one- And the side cross-sectional shape is "

The fitting end 310 is inserted and coupled to the coupling groove 21-2 of the door frame and the elastic end 320 contacting the closing side corresponding surface 33 of the door frame structure is formed as a tunnel- So as to block the noise path while being elastically contacted with the hollow space 330 when the door body 20 is closed.

At this time, the outer surface of the door panel 22 is coupled to the receiving groove 21-3 of the door frame 21 in a state where the door panel 22 is inserted into the receiving groove 21-3. A fourth soundproof packing 400 having a length in one direction and a circular cross section is inserted in the space G toward the interior of the door panel 21 and is formed between the door panel 21 and the door panel 21, Is formed to block the noise path.

" 인 형태로서, 도어 프레임(21)의 하부면 장착홈(21-4)에 대하여 끼움단(510)이 삽입 결합되고, 차폐용 바닥판(10)의 상면과 닿는 텐션면(520)은 포크 또는 다수개의 리브가 분기된 형태로 형성되어 형성되어 차폐도어 본체(20)의 닫힘시 골 간격(530)을 기준으로 탄성 밀착되면서 소음 경로를 차단하도록 형성된다.The door frame 21 corresponds to the shielding bottom plate 10 so that the fifth soundproof packing 500 is formed on a side adjacent to the soundproofing shield finger unit 100, 500) have a length in one direction and a side cross-sectional shape is "

The fitting end 510 is inserted into the lower surface mounting groove 21-4 of the door frame 21 and the tension surface 520 contacting the upper surface of the shielding bottom plate 10 is inserted into the fork Or a plurality of ribs are formed in a branched shape so as to be elastically contacted with the rib spacing 530 when the shielding door body 20 is closed.

At this time, the door panel is provided with GI (hot dip galvanized steel) steel plates on both sides facing the indoor / outdoor side, and plywood -> PU (polyurethane) The plywood and the PU foam are formed to be able to apply the thickness width differently when they are mounted so that the resonance frequency of each material can be removed.

As described above, according to the present invention, a high soundproofing and shielding property of a shielding door is realized in a shielding room. When the shielding door body is opened and closed with reference to a door frame structure and a shielding bottom plate, Shielding finger unit and a second to fifth soundproofing packing are additionally provided on the main body of the shielding door and the frame of the door frame so as to shield the gap noise from the original, A plurality of panels having different kinds and thickness variations are combined in the form of a sandwich plywood so as to be able to sound various resonance frequencies. This has the effect of greatly improving soundproofness and shielding.

Further, in the present invention, the soundproof shielding finger unit is designed to have a soundproof packing in a curved finger elastic plate inner space so that the soundproof packing does not directly touch the bottom plate surface for shielding, And the soundproof packing is smoothly adhered together with the expansion and contraction. This minimizes the occurrence of wear of the packing for sound insulation during shielding and soundproofing (surface contact friction occurs at the time of opening and closing), so that the service life is remarkably improved, Particularly, since the packing for interior decoration has a high elasticity structure, the compression bonding performance of the finger elastic plate is doubled. As a result, the soundproof property and the shielding property are greatly improved due to the improved contactability.

1 is an exemplary view of a shielded door according to the present invention,
Fig. 2 is a sectional view of one side of Fig. 1,
3 shows an example of a soundproof packing of various embodiments according to the invention,
FIG. 4 is a cross-sectional side view of a soundproof shield finger unit according to the present invention,
FIG. 5 is an exemplary perspective view of FIG. 4,
Fig. 6 is a front elevational view of an indoor side of a general shielding door,
7 is a sectional view taken along the line AA in Fig. 1,
Fig. 8 is an enlarged view of the hinge shaft portion of Fig. 2,
Fig. 9 is a right side view of Fig. 1,
FIG. 10 is an enlarged cross-sectional view of the BB line of FIG. 6 showing the closed state of the lower side of the shield door and the door sill.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

1 to 5, a shielding door main body 20, which is opened and closed by a sliding method (hinge swing type or front and rear closing type) on the top surface of a shielding bottom plate 10 of the present invention, As shown in FIG.

The shielding door body 20 is composed of a door frame 21 and a door panel 22 having a multi-layered sandwich structure.

At this time, the door frame 21 is housed in the finger pockets 31 of the frame 30, and a knife 21-1 for performing shielding of the remaining three surfaces except the lower surface of the four surfaces is formed. And a soundproof shielding finger unit 100 is provided on the lower surface of the surface so as to simultaneously perform shielding and soundproofing while corresponding to the shielding bottom plate 10.

The soundproof shielding finger unit 100 also acts as a primary soundproofing packing and is provided with a soundproof packing 120 in the inner space of the finger elastic plate 110 curved in a convex shape with respect to the shielding floor plate 10, .

At this time, one side of the finger elastic plate 110 is fixed at the lower part of the door frame when it is engaged, and the other side is a free-end state. When the door is opened and closed, the finger elastic plate 110 is bent based on the free side and the side where the curved surface is fixed. .

In other words, the finger elastic plate 110 is formed to be in close contact with the bottom plate 10 as shown in FIG.

The finger elastic plate 110 is a thin plate of a copper material which is elongated in the longitudinal direction and has a cut-out groove formed at regular intervals on the surface. When the finger elastic plate 110 touches the bottom plate or frame for shielding, And is formed to be restored upon opening.

That is, when the finger elastic plate is coupled to the door frame, one fixing end is fixed to a bolt screw or a fixing bolt, and the finger elastic plate corresponding to the other side of the fixing end has a free end side in a non- (In a form in which it is only in contact with the surface of the frame), and is stretched while being partially pushed backward in accordance with the pressing force upon entry into the shielding bottom plate.

The soundproof packing 120 of the present invention is formed of silicone or rubber. When the one insertion hole 121 is inserted into the mounting groove 21-5 formed in the door frame, And is formed to protrude toward the plate 10.

At this time, the close contact surface 122 is accommodated in the finger elastic plate 110 and is formed so as to facilitate sound insulation while being in close contact with the extension and contraction of the finger elastic plate at the time of opening / closing without directly touching the upper surface of the shielding bottom plate 10.

That is, the close contact surface of the soundproof packing has a hollow hemispherical shape. The finger elastic plate and the arc shape correspond to each other, and the inner side of the finger elastic plate (so as not to be directly exposed between the lower surface of the door frame and the upper surface of the bottom plate for shielding) So that the soundproof packing of silicon or rubber material does not directly contact with the shielding bottom plate during the swing open / close (hinge opening structure) of the shielding door or the front and rear opening and closing (front and rear sliding opening structure) .

" 형상으로 형성되고, 상기 삽입구(121)는 "

" 형상으로 형성되는 것이 바람직하다.Thus, the tight contact surface 122 of the packing is "

And the insertion port 121 is formed in a "

Quot; shape.

That is, the contact surface is formed in a wedge shape so that the inner space part can be easily broken or restored in the shape of a hemispherical shape, and the insertion hole is wedge-shaped so as to be given a strong supporting force when the door frame is attached to the assembly groove of the door frame.

At this time, the insertion port is formed such that a space portion is formed in the insertion port so that a smooth bending is generated when the coupling groove is forcedly inserted into the coupling groove, so that the insertion groove can be easily inserted into the coupling groove formed in a long slit shape.

It is preferable that the contact surface 122 is formed in a soft shape and the insertion hole 121 is formed in a hard or heavy shape.

This is to improve the soundproofing performance by doubling the pressing property of the contact surface, and the fixture is formed of a dissimilar material having strong physical properties so as to ensure firm mounting performance.

" 인 형태로서, 문틀 골조의 끼움홈(32)에 대하여 고정단(210)이 삽입 결합된다.In the meantime, the door frame 30 is formed with a secondary soundproof packing 200 on one side of the door frame 21, and the secondary soundproof packing 200 has a length in one direction and a side cross- "

The fixed end 210 is inserted into the fitting groove 32 of the frame structure.

At this time, the secondary soundproof packing is formed by a curved surface in which a plurality of tunnel-shaped curved surfaces are formed on the extension / retraction stage 220 contacting the closed side surface of the door frame 21, 230, and thus the noise path is blocked.

" 인 형태로 구성된다.The door frame 21 is formed such that the knife 21-1 is formed with a third soundproof packing 300 on the peripheral recessed surface corresponding to the finger pocket 31. The third soundproof packing 300 is one- And the side cross-sectional shape is "

&Quot;.

In the third soundproof packing, the fitting end 310 is inserted and coupled to the coupling groove 21-2 of the door frame, and the elastic end 320 contacting with the closing-side corresponding surface 33 of the door frame has a tunnel- And is formed so as to be elastically contacted with the inner hollow space 330 when the shielding door body 20 is closed to block the noise path.

At this time, the door panel 22 is formed to be coupled to the receiving groove 21-3 of the door frame 21 on the outer circumferential edge of the four sides.

In the state where the door panel 22 is fitted in the receiving groove 21-3, a quadrangular soundproof packing 400 having a length in one direction and a circular cross section is inserted into the space G toward the room side Is formed so as to block a noise path that may occur between the inner and outer gaps between the door panel (22) and the door frame (21).

At this time, the door frame 21 corresponds to the shielding bottom plate 10, and the fifth soundproof packing 500 is formed on a side adjacent to the soundproof shielding finger unit 100.

" 인 형태로서, 도어 프레임(21)의 하부면 장착홈(21-4)에 대하여 끼움단(510)이 삽입 결합된다.Accordingly, the fifth soundproof packing 500 has a length in one direction and a side cross-sectional shape is "

The insertion end 510 is inserted and coupled to the lower surface mounting groove 21-4 of the door frame 21. As shown in Fig.

At this time, the fifth soundproof packing is formed by forming a fork or a plurality of ribs into a tensing surface 520 contacting with the upper surface of the shielding bottom plate 10, so that when the shielding door body 20 is closed, ), And the noise path is blocked.

The door panel is provided with a GI (hot dip galvanized steel) steel plate on both sides facing the indoor and outdoor sides, and a ladle-to-PU (polyurethane) plate is disposed in the space between the plurality of GI steel plates in order from the indoor side to the outdoor side. The foam-> plywood is formed to be arrayed.

At this time, the plywood and the PU foam are formed so as to be able to apply different thickness widths at the time of mounting, so that the resonance frequency of each material can be removed.

In summary, the present invention provides a shielding door that is manually opened and closed to maximize the sound insulation effect while maintaining the electromagnetic wave shielding function.

1. Soundproofing Shielding finger unit (corresponding to primary packing) to shield the clearance that can occur on three sides of the four sides of shielding door, except lower part. It has a dual sounding effect, and it is a structure that carries out sound insulation again between the door and the door frame by the third packing.

2. It is a structure to keep the electromagnetic wave shielding effect by the tertiary packing and to make the sound insulation and the sound insulation by the fourth packing in order to effectively intercept the gap that may occur in the lower part of the door.

3. The material of each packing improves the durability through the silicon molding and has the structure that can perform multiple sound insulation with one contact. Particularly, the secondary packing has a double structure so that it is double sounded by the contact of one side. The 4th packing has 4 contact parts, 2 inner parts are used for sound insulation, and 2 outer parts are used for removing foreign matter . Particularly, if there is a foreign substance on the floor, there is a problem of lower electromagnetic wave shielding and sound insulation, so it must be removed when the door is operated.

4. In the multi-layered structure of the door, in order to shield the resonance frequency of each material, an effective sound insulation structure is provided by varying the thickness of each material. In the case of GI steel, the thickness of the GI steel is 0.5t and the thickness is 1.5t. In case of plywood, the thickness of the plywood is differentiated by 6t and 12t to absorb the resonance frequency of each material and thickness. Polyurethane) to maximize the sound insulation effect.

5. The packing grooves are made uniform in the door and door frame so that it can be used by replacing different ones depending on the degree of sound insulation. It is designed to be inserted in the horizontal direction of the door It was designed to be a replacement.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10 ... shielding bottom plate 20 ... shielding door main body
21 ... door frame 21-1 ... knife
21-2 ... coupling groove 21-3 ... storage groove
21-4 ... mounting groove 21-5 ... mounting groove
22 ... Door panel 30 ... Frame frame
31 ... finger pocket 32 ... fitting groove
33 ... corresponding surface
100 ... soundproof shielding finger unit 110 ... finger elastic plate
120 ... Soundproof packing
200 ... second soundproof packing 210 ... fixed end
220 ... expansion shaft 230 ... interior space
300 ... third soundproof packing 310 ...
320 ... elastic end 330 ... interior space
400 ... 4th soundproof packing 500 ... 5th soundproof packing
510 ... end 520 ... tension plane
530 ... bone interval

Claims (6)

The shielding door main body 20 is opened and closed on the basis of the door frame frame 30 by sliding the door main body 20 opened and closed on the upper surface of the shielding bottom plate 10 with the door frame 21 and the multi- And the door frame 21 is housed in the finger pocket 31 of the door frame 30 so as to perform shielding of the remaining three surfaces excluding the lower surface of the four sides And a soundproof shielding finger unit 100 is provided on the lower surface of the four sides so as to correspond to the shielding floor plate 10 and simultaneously perform shielding and soundproofing. In the electromagnetic wave shielding door,
The second frame structure 200 is formed to have a length in one direction and a side cross-sectional shape of "

The fixed end 210 is inserted into the fitting groove 32 of the door frame frame and the extending and retracting end 220 contacting the closed side surface of the door frame 21 is formed into a curved surface having a plurality of tunnel shapes And the door frame 21 is formed so as to block the noise path while being elastically contacted with the hollow space 230 when the shielding door body 20 is closed. The knife 21-1 is connected to the finger pockets 31, the third soundproof packing 300 has a length in one direction and a side cross-sectional shape is "

The fitting end 310 is inserted and coupled to the coupling groove 21-2 of the door frame and the elastic end 320 contacting the closing side corresponding surface 33 of the door frame structure is formed as a tunnel- And the door panel 22 is formed so as to block the noise path while being elastically contacted with the inner space 330 when the door 20 is closed. The door panel 22 is inserted into the receiving groove 21-3 so that the door panel 22 is inserted into the receiving groove 21-3 and the interspace G toward the room side has a length in one direction, And the door frame 21 is formed to block a noise path that may occur between the inner and outer gaps between the door panel 22 and the door frame 21, (10), and a fifth soundproof packing (50) is provided on one side adjacent to the soundproof shielding finger unit (100) 0), the fifth soundproof packing 500 having a length in one direction and a side cross-sectional shape of "

The fitting end 510 is inserted into the lower surface mounting groove 21-4 of the door frame 21 and the tension surface 520 contacting the upper surface of the shielding bottom plate 10 is inserted into the fork Or a plurality of ribs are formed in a branched form so as to block the noise path while being elastically contacted with the rib spacing 530 when the shielding door body 20 is closed. (PU) foam plywoods are arranged in the space between the plurality of GI steel plates in the order from the indoor side to the outdoor side, respectively, in the order of the GI (hot dip galvanized steel) The soundproof shielding finger unit 100 is formed so as to be able to apply different thickness widths when mounting the plywood and PU foam, so that the soundproof shielding finger unit 100 can be mounted on the shielding floor plate 10 The finger elastic plate 110 curved in a convex form relative to the finger elastic plate 110, The soundproof packing (120) is installed in the inner space. One side of the finger elastic plate (110) is fixed to the lower part of the door frame when it is engaged and the other side is a free end state. And the soundproof packing 120 is made of silicone or rubber material. When the insertion hole 121 is inserted into the fitting groove 21-5 formed in the door frame, The other side contact surface 122 is formed so as to protrude toward the shielding bottom plate 10 and the close contact surface 122 is accommodated in the finger elastic plate 110 and does not directly touch the upper surface of the shielding bottom plate 10. [ And is formed so as to facilitate sound insulation while being closely attached to the elasticity of the finger elastic plate upon opening and closing.
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