KR101281641B1 - Apparatus for reducing noise of cabin - Google Patents

Apparatus for reducing noise of cabin Download PDF

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Publication number
KR101281641B1
KR101281641B1 KR1020100134693A KR20100134693A KR101281641B1 KR 101281641 B1 KR101281641 B1 KR 101281641B1 KR 1020100134693 A KR1020100134693 A KR 1020100134693A KR 20100134693 A KR20100134693 A KR 20100134693A KR 101281641 B1 KR101281641 B1 KR 101281641B1
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KR
South Korea
Prior art keywords
cabin
blocking member
noise reduction
reduction device
support
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KR1020100134693A
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Korean (ko)
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KR20120072797A (en
Inventor
박용환
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삼성중공업 주식회사
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Priority to KR1020100134693A priority Critical patent/KR101281641B1/en
Publication of KR20120072797A publication Critical patent/KR20120072797A/en
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Publication of KR101281641B1 publication Critical patent/KR101281641B1/en

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Multimedia (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

An apparatus for reducing noise in a cabin is disclosed.
Noise reduction device of the cabin according to an embodiment of the present invention is installed in or outside the cabin blocking member for blocking the generation of standing waves in the cabin, and the blocking member to a position for blocking the generation of the standing wave It includes a support for supporting to move.

Description

Cabin noise reduction device {APPARATUS FOR REDUCING NOISE OF CABIN}

The present invention relates to a noise reduction device, and more particularly to a noise reduction device of a cabin.

In general, ships are provided with a living quarters equipped with a working space and cooking and sleeping cabins for crew members to live while working, which are arranged in consideration of the engine room and the steering room.

In addition, the residence port is made of an array of cabins (cabin) that is a receiving space, the exhaust noise of the generator engine or the main engine is introduced into the cabin through the side wall of the cabin in the process of discharged to the outside of the ship. The most dominant noise source among these noises is the low frequency band, which causes noise problems in the cabin because the transmission loss is very small.

As shown in FIG. 1, the standing wave L1 of the cabin 1 corresponds to a wavelength of low frequency noise, for example, a wavelength of 30 to 250 kHz, or an integer multiple of the wavelength. generates a wave. When standing waves repeat reflections between walls facing each other in parallel, the distance between the walls and the walls is equal to the wavelength of the noise or an integer multiple of the wavelength of the noise, resulting in a strong peak and valley of the noise. Ringing phenomenon. These phenomena have high noise levels in certain areas, such as the cabin walls, which has an unpleasant effect on the cabin crew.

However, the cabin provided in the conventional ship is difficult to solve the low-frequency noise problem because the sound absorption rate is very small in the case of low-frequency band, which causes a problem that provides an unpleasant environment for the crew living in the residential quarters while working normally I had.

Embodiments of the present invention seek to provide a crew with a comfortable environment by preventing the generation of standing waves in the cabin and by improving sound insulation performance.

According to an aspect of the present invention, a device for reducing the noise of the cabin, the blocking member which is installed inside or outside of the cabin to block the generation of standing waves in the cabin, the blocking member is the standing wave A noise reduction device for a cabin can be provided that includes a support that can be positioned in a position to block the occurrence of.

In addition, a porous sound absorbing material may be installed on the surface of the blocking member to enable sound absorption.

In addition, the blocking member may be formed of a moving panel that is supported by the support so that the edge is movable.

In addition, the support part may be installed at each of four corners facing each other from the inside of the cabin, and may include a plurality of first guide rails to slidably support the corners of the movable panel.

In addition, the support portion may be installed so as to be horizontal from each of the four corners of the outer surface of the cabin, and may include a plurality of second guide rails for slidably supporting the corners of the movable panel.

In addition, the blocking member is made of a first folding panel foldable in a zigzag, the support portion is installed on the upper side and the lower side in the cabin, respectively, and the top of the first folding panel to expand or fold the first folding panel It may include a plurality of third guide rails for slidably supporting the bottom.

In addition, the support portion is hinged to rotate in an upward direction in the horizontal state on both sides of the upper end and the lower side of the outside of the cabin, respectively, the first and second rotary support end is rotatably coupled to the top and bottom of the blocking member It may include.

In addition, the blocking member is made of a second foldable folding panel zigzag, it can be detachably fixed from the first or second rotation support.

In addition, the blocking member is made of a foldable third folding panel zigzag, the support portion is hinged to rotate in a horizontal direction upward on both sides of the upper end of the outside of the cabin, the third folding panel along the longitudinal direction It may include a rotary rail to support both sides of the third folding panel to be expanded or folded slidably, the hinge coupling portion is formed to be rotated downward in a portion spaced apart from the outer surface of the cabin.

Embodiments of the present invention can provide a comfortable environment for the crew by preventing the generation of standing waves in the cabin and improving the sound insulation performance.

1 is a perspective view showing a cabin according to the prior art,
2 is a perspective view showing a noise reduction device of a cabin according to a first embodiment of the present invention;
3 is a perspective view illustrating a noise reduction device of a cabin according to a second embodiment of the present invention;
4 is a perspective view illustrating a noise reduction device of a cabin according to a third embodiment of the present invention;
5 is a perspective view for explaining the operation of the noise reduction device of the cabin according to the third embodiment of the present invention;
6 is a perspective view showing a noise reduction device of a cabin according to a fourth embodiment of the present invention;
7 is a perspective view for explaining the operation of the noise reduction device of the cabin according to the fourth embodiment of the present invention,
8 is a perspective view illustrating a noise reduction apparatus of a cabin according to a fifth embodiment of the present invention;
9 is a perspective view for explaining the operation of the noise reduction device of the cabin according to the fifth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

2 is a perspective view illustrating a noise reduction apparatus of a cabin according to a first embodiment of the present invention.

As shown in Figure 2, the noise reduction device 100 of the cabin according to the first embodiment of the present invention is installed inside or outside the cabin (cabin) (10) is standing wave (standing) in the cabin (standing) Blocking member 110 for blocking the generation of the wave, and the blocking member 110 may include a support 120 for supporting so as to be located in a position for blocking the generation of the standing wave. Here, the cabin 10 may be in the form of a room forming a receiving space, it may be provided in the living quarters of the vessel.

The surface of the blocking member 110 may be installed or attached so that the porous sound absorbing material (not shown) is exposed to the outside to enable sound absorption, the installation of the sound absorbing material for the blocking member 110 is the noise of the cabin according to the present invention below The same applies to all embodiments of the reduction device.

The blocking member 110 may be formed of a moving panel in which the edge is movable by the support part 120 in this embodiment.

The support part 120 may be formed of four by being installed at each of four corners facing each other inside the cabin 10, and a plurality of first guides slidably supporting the corners of the blocking member 110 made of a movable panel, respectively. It may include a rail 121. Accordingly, the blocking member 110 is spaced apart from the wall surface 11 or inside the cabin 10 by an external force by a crew member or a motor in a state where the edge is supported by the first guide rail 121 or on the wall surface 11. You can move it to touch it.

For example, the first guide rails 121 may be slidably coupled to rollers provided at four corners of the blocking member 110, or four corners of the blocking member 110 may be slidably coupled to each other.

The noise reduction device 100 of the cabin according to the first exemplary embodiment of the present invention has a length of the cabin 10 as the blocking member 110 moves inside the cabin 10 along the first guide rail 121. The occurrence of standing waves is prevented by not matching the wavelength of the low frequency noise or by an integer multiple of the low frequency noise.

The blocking member 110 effectively prevents the generation of standing waves by keeping the distance L2 from the wall 11 to maintain multiples of 1/4, 3/4, 5/4, ..., etc. of the noise wavelength. In addition, the sound absorption material has a sound absorption function, so that the noise transmittance is reduced. In addition, even if the noise penetrates the wall surface 11, the energy is lost and attenuated by being repeatedly reflected between the blocking member 110 and the wall surface 11.

3 is a perspective view illustrating a noise reduction apparatus of a cabin according to a second exemplary embodiment of the present invention.

As shown in FIG. 3, in the cabin noise reduction apparatus 200 according to the second embodiment of the present invention, the blocking member 210 has a moving panel similar to the cabin noise reduction apparatus 100 according to the first embodiment. Wherein, the support 220 is installed so as to be horizontal from each of the four outer edges of the cabin 10, a plurality of second guide rails 221 to support the edge of the blocking member 210, which is a movable panel slidably. It may include. Here, the second guide rail 221 is made of four can be fixed to be horizontal in the direction extending from the four corners facing each other inside the cabin 10, the four corners of the blocking member 210 by the roller Alternatively, the sliding member may be directly coupled to each other, and the blocking member 210 may be spaced apart from the outer surface 12 of the cabin 10 or moved in a direction perpendicular to the outer surface 12.

The noise reduction device 200 of the cabin according to the second embodiment of the present invention as described above by moving the blocking member 210 from the outer surface 12 of the cabin 10 to adjust the separation distance (L2) As in the noise reduction device 100 of the cabin according to the first embodiment, the generation of standing waves is prevented and the noise is reduced. That is, the blocking member 210 stands by allowing the distance L2 from the outer surface 12 of the cabin 10 to maintain a multiple of 1/4, 3/4, 5/4, ..., etc. of the noise wavelength. It effectively prevents the generation of waves, and has a sound absorbing function by the sound absorbing material to lower the noise transmittance and to attenuate while the transmitted noise is reflected

In addition, the noise introduced into the cabin is first blocked by the blocking member 210, and the energy is dissipated and reduced while being repeatedly reflected between the blocking member 210 and the outer surface 12.

4 is a perspective view showing a noise reduction device of a cabin according to a third embodiment of the present invention, Figure 5 is a perspective view for explaining the operation of the noise reduction device of a cabin according to a third embodiment of the present invention.

As shown in Figure 4 and 5, according to the noise reduction device 300 of the cabin according to the third embodiment of the present invention, the blocking member 310 may be made of a foldable first folding panel, To this end, the plurality of panels 311 may be hinged to each other to be folded in a zigzag form, or the plurality of panels 311 may be foldably connected to each other.

The support part 320 is formed in a pair so as to be parallel to each other in the upper side and the lower side in the cabin 10, it is possible to slide the top and bottom of the first folding panel to expand or fold the first folding panel, which is a blocking member 310. It may include a plurality of third guide rails 321 for supporting. Here, the third guide rail 321 may be coupled to the panel 311 of the blocking member 310 so as to be slidable by the roller or directly.

As shown in FIG. 4, the noise reduction device 300 of the cabin according to the third exemplary embodiment of the present invention has the blocking member 310 formed by the third guide rail 321 of the wall surface of the cabin 10. 11, the blocking member 310 absorbs the noise by the sound absorbing material, and the noise passing through the blocking member 310 does not generate a standing wave, thereby reducing the noise. In addition, even if the noise penetrates the wall surface 11, the energy is lost and attenuated by being repeatedly reflected between the blocking member 110 and the wall surface 11.

Here, the second guide rail 321 may be formed at a position where the standing wave does not occur in view of the frequency of noise that is previously known.

In addition, as shown in FIG. 5, when the use of the blocking member 310 is not required, the space utilization of the cabin 10 may be increased by folding the first folding panel, which is the blocking member 310.

6 is a perspective view illustrating a noise reduction device of a cabin according to a fourth embodiment of the present invention, and FIG. 7 is a perspective view illustrating an operation of the noise reduction device of a cabin according to a fourth embodiment of the present invention.

As shown in Figure 6 and 7, according to the noise reduction device 400 of the cabin according to the fourth embodiment of the present invention, the support portion 420 is horizontal on both sides of the upper and lower sides of the outside of the cabin 10 Each hinge is coupled to rotate upward in the upper and lower ends of the blocking member 410 may include a first and second rotating support (421, 422) rotatably coupled. Here, the first and second rotational support (421, 422) may be formed in a pair, respectively, can be maintained in a horizontal state by the hinge bracket 423 provided on the outside of the cabin 10, if necessary upwards Rotate to maintain verticality.

Meanwhile, the blocking member 410 may be formed of a second folding panel that is zigzag-foldable. For example, the plurality of panels 411 may be hinged to each other so that the panels 411 may be zig-zag folded, or the plurality of panels 411 may be zig-zag folded. May be connected to each other as much as possible. In addition, the blocking member 410 may be detachably fixed from the first or second rotational support 421, 422, for example, may be fixed by a detachable ring 424 to the second rotational support 422. .

As shown in FIG. 6, the noise reduction device 400 of the cabin according to the fourth embodiment of the present invention has the blocking member 410 in a state in which the first and second rotational supports 421 and 422 are horizontal. Is spread out to maintain a state spaced apart from the outer surface 12 of the cabin 10, thereby absorbing the noise by the blocking member 410, the sound absorbing material is installed, and the noise transmitted through the blocking member 410 The noise may be reduced by not causing the standing wave phenomenon in the cabin 10. Although not shown in the drawings, the plurality of panels 411 also have a distance from the outer surface 12 of the cabin 10 at 1/4, 3/4, 5/4, in the fourth embodiment of the present invention. It may be guided along the first and second rotary support (421, 422) and movable to maintain drainage of the back.

In addition, the noise flowing into the cabin is first blocked by the blocking member 410, and repeatedly reflected between the blocking member 410 and the outer surface 12, the energy can be extinguished and reduced.

In addition, as illustrated in FIG. 7, when the use of the blocking member 410 is not required, the first and second rotational supports 421 and 422 are rotated upward to stand vertically, and then the second folding panel is blocked. The member 410 is separated from the second rotary support 422 and then folded to be stored.

8 is a perspective view illustrating a noise reduction apparatus of a cabin according to a fifth embodiment of the present invention, and FIG. 9 is a perspective view illustrating the operation of the noise reduction apparatus of a cabin according to a fifth embodiment of the present invention.

As shown in Figure 8 and 9, according to the noise reduction device 500 of the cabin according to the fifth embodiment of the present invention, the blocking member 510 may be made of a foldable third folding panel, For example, the plurality of panels 511 may be hinged to each other to be zigzag-folded, or the plurality of panels 511 may be connected to be zigzag-folded.

The support part 520 is hinged to the upper both sides of the cabin 10 outside to rotate upward in a horizontal state, and the third folding panel of the blocking member 510 to extend or fold along the longitudinal direction of the third folding panel. It may include a rotary rail 521 to support both sides slidably, the hinge coupling portion 522 is rotatable downward in a portion spaced from the outer surface 12 of the cabin 10.

Rotating rail 521 is a pair, the hinge bracket 523 fixed to the outside of the cabin 10, each panel 511 of the blocking member 510 can be slidably connected by a roller or directly, It is maintained by the horizontal, it can be rotated upward to stand vertically, by the hinge coupling portion 522 can be rotated so that the end is directed downward.

As shown in FIG. 8, the cabin noise reduction apparatus 500 according to the fifth embodiment of the present invention has an end thereof by the hinge coupling part 522 in a state in which the rotary rail 521 is horizontal. Rotate downward to be vertical. At this time, the blocking member 510 is spaced apart from the outer surface 11 of the cabin 10 by spreading along the rotary rail 521, whereby the blocking member 510 absorbs the noise by the sound absorbing material, The noise is reduced so that the noise does not cause a standing wave phenomenon in the cabin 10.

In addition, the noise introduced into the cabin is first blocked by the blocking member 510, and the energy is dissipated and reduced while being repeatedly reflected between the blocking member 510 and the outer surface of the cabin.

In addition, as shown in FIG. 9, when the use of the blocking member 510 is not required, the support 520 is rotated upward to stand vertically, and then the third folding panel, which is the blocking member 510, is rotated. By sliding along the rail 521 can be folded to facilitate storage.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiment of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

10: cabin
110,210,310,410,510: blocking member
120,220,320,420,520: Support part
121: first guide rail
221: second guide rail
311,411,511: Panel
321: 3rd guide rail
421: first rotating support
422: second rotary support
423: Hinge Bracket
424 rings
521: rotary rail
522: hinge coupling portion
523: Hinge Bracket

Claims (9)

As a device for reducing the noise of the cabin,
A blocking member installed inside or outside of the cabin to block generation of standing waves in the cabin;
And a support for supporting the blocking member so that the blocking member can be positioned at a position for blocking generation of the standing wave.
The support portion
Hinge coupled to the upper side and the lower side both sides of the outside of the cabin so as to rotate upward in a horizontal state, the first and second rotating support to the end rotatably coupled to the top and bottom of the blocking member;
Cabin noise reduction device.
The method of claim 1,
Porous sound absorbing material is installed on the surface of the blocking member to enable sound absorption
Cabin noise reduction device.
3. The method according to claim 1 or 2,
The blocking member is formed of a moving panel supported by the support so that the edge is movable.
Cabin noise reduction device.
The method of claim 3, wherein
The support portion
It is provided for each of the four corners facing each other from the inside of the cabin, comprising a plurality of first guide rails for slidably supporting the edge of the movable panel
Cabin noise reduction device.
The method of claim 3, wherein
The support
It is installed so as to be horizontal from the four corners of the outer surface of the cabin, each comprising a plurality of second guide rails for slidingly supporting the edge of the movable panel
Cabin noise reduction device.
3. The method according to claim 1 or 2,
The blocking member is made of a foldable first folding panel,
The support part is installed on the upper side and the lower side of the cabin, respectively, and includes a plurality of third guide rails for slidably supporting the upper end and the lower end of the first folding panel so that the first folding panel is unfolded or folded.
Cabin noise reduction device.
delete The method of claim 1,
The blocking member
A zigzag foldable second folding panel, which is detachably fixed from the first or second rotational support
Cabin noise reduction device.
As a device for reducing the noise of the cabin,
A blocking member installed inside or outside of the cabin to block generation of standing waves in the cabin;
And a support for supporting the blocking member so that the blocking member can be positioned at a position for blocking generation of the standing wave.
The blocking member is made of a foldable third folding panel zigzag,
The support portion is hinged to each of the upper sides of the outside of the cabin to rotate upward in a horizontal state, and supports the two sides of the third folding panel slidably so as to expand or fold the third folding panel in the longitudinal direction, It includes a rotary rail that is formed in the hinge spaced apart from the outer side of the cabin rotatable hinge coupling portion
Cabin noise reduction device.
KR1020100134693A 2010-12-24 2010-12-24 Apparatus for reducing noise of cabin KR101281641B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100134693A KR101281641B1 (en) 2010-12-24 2010-12-24 Apparatus for reducing noise of cabin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100134693A KR101281641B1 (en) 2010-12-24 2010-12-24 Apparatus for reducing noise of cabin

Publications (2)

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KR20120072797A KR20120072797A (en) 2012-07-04
KR101281641B1 true KR101281641B1 (en) 2013-07-03

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01287342A (en) * 1988-05-14 1989-11-20 Matsushita Electric Works Ltd Acoustic facilities for room
JPH03287945A (en) * 1990-04-03 1991-12-18 Mitsui Constr Co Ltd Acoustically variable partition construction for hall
JPH08144390A (en) * 1994-11-16 1996-06-04 Sanyo Kogyo Kk Structure of translucent sound absorbing panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01287342A (en) * 1988-05-14 1989-11-20 Matsushita Electric Works Ltd Acoustic facilities for room
JPH03287945A (en) * 1990-04-03 1991-12-18 Mitsui Constr Co Ltd Acoustically variable partition construction for hall
JPH08144390A (en) * 1994-11-16 1996-06-04 Sanyo Kogyo Kk Structure of translucent sound absorbing panel

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KR20120072797A (en) 2012-07-04

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