KR20120108471A - Soundproof wall using fan type sound absorption assembly and construction method thereof - Google Patents

Soundproof wall using fan type sound absorption assembly and construction method thereof Download PDF

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Publication number
KR20120108471A
KR20120108471A KR1020110026368A KR20110026368A KR20120108471A KR 20120108471 A KR20120108471 A KR 20120108471A KR 1020110026368 A KR1020110026368 A KR 1020110026368A KR 20110026368 A KR20110026368 A KR 20110026368A KR 20120108471 A KR20120108471 A KR 20120108471A
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KR
South Korea
Prior art keywords
sound absorbing
fan
noise
housing
sound
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Application number
KR1020110026368A
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Korean (ko)
Inventor
윤서현
Original Assignee
현수건설 주식회사
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Priority to KR1020110026368A priority Critical patent/KR20120108471A/en
Publication of KR20120108471A publication Critical patent/KR20120108471A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0064—Perforated plate or mesh, e.g. as wall facing
    • E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0088—Suspended, e.g. ropes or mesh

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention provides a sound-absorbing assembly in which a sound-absorbing collector is installed around the rotating fan on the soundproof wall, thereby improving sound-absorption performance, and at the same time, manufacturing cost is low and easy to manufacture. In order to provide, according to a preferred embodiment of the present invention, the sidewalk block provided on one side of the driveway; A plurality of fan type sound absorbing assemblies disposed in the longitudinal direction at different heights above the sidewalk block; A soundproof plate connecting the plurality of fan type sound absorbing assemblies to each other; The fan type sound absorbing assembly includes: a fan housing having a sound collecting chamber in which a sound absorbing chamber is formed and formed toward the noise source side and distributed in a plurality of bottoms; A rotating fan positioned in the sound absorbing chamber and rotatably supported by the fan housing to be rotated by natural wind or wind pressure of the vehicle; And positioned in the centrifugal direction of the rotating fan is attached to the inner wall of the fan housing, characterized in that it comprises a sound absorbing collecting member for collecting and absorbing the noise introduced into the sound absorbing chamber through the sound collecting hole.

Description

Soundproof wall using fan type sound absorption assembly and construction method

The present invention relates to a soundproof wall to which a sound absorbing assembly having a rotating fan is applied. Particularly, a sound absorbing assembly having a sound absorbing material disposed around a rotating fan can be constructed on the soundproof wall to improve sound absorption performance and at the same time to produce a low-cost and easy production. The present invention relates to a soundproof wall using a fan type sound absorbing assembly for easy maintenance.

In general, noise barriers are installed around noise sources such as roads, railways, or construction sites to block noise from passing away. Sound absorbing means may be installed in the soundproof walls to absorb noise. However, at the upper end of the soundproof wall, the blocked noise is concentrated and a diffraction phenomenon is carried over.

Thus, this diffracted noise contains high sound energy and is transmitted as far sharper sound. As a technique for attenuating such a diffraction phenomenon, conventionally, a round or mushroom-shaped reducing device is installed at the top of the soundproof wall, which reduces diffraction by dispersing the concentrated sound energy using a curved surface.

Since the noise reduction device for attenuating the diffraction phenomenon of the conventional noise merely uses a fixed curved shape, there is a problem that the attenuation rate of the diffraction phenomenon is low.

Therefore, the present invention was devised in view of the above circumstances, and the soundproof wall using the fan type sound absorbing assembly to improve the sound absorbing performance by allowing the sound absorbed by the rotation of the rotating fan to be absorbed intensively in the sound absorbing collecting material. The purpose is to provide.

Another object of the present invention is to provide a soundproof wall using a fan-type sound absorbing assembly to increase the sound absorbing area of the sound absorbing material to increase sound absorption.

It is still another object of the present invention to provide a soundproof wall using a fan type sound absorbing assembly configured to improve the installation assembly of the fan housing and the rotating fan by configuring the fan housing in a split assembly type.

In addition, the object of the present invention will become more apparent while understanding the structure and operation of the detailed description.

According to a suitable embodiment of the present invention,

A sidewalk block provided on one side of the roadway;

A plurality of fan type sound absorbing assemblies disposed in the longitudinal direction at different heights above the sidewalk block;

A soundproof plate connecting the plurality of fan type sound absorbing assemblies to each other;

The fan type sound absorption assembly,

A fan housing having an acoustic chamber formed therein and formed toward the noise source side, the fan housing having a noise collecting hole distributed in multiple numbers;

A rotating fan positioned in the sound absorbing chamber and rotatably supported by the fan housing to be rotated by natural wind or wind pressure of the vehicle; And

Located in the centrifugal direction of the rotating fan is attached to the inner wall of the fan housing, characterized in that it comprises a sound absorbing collecting material for collecting and absorbing the noise introduced into the sound absorbing chamber through the sound collecting hole.

According to another suitable embodiment of the present invention,

The sound absorbing collecting material is made of soft urethane foam, glass wool, synthetic resin compressed fiber, any one of which is located on the opposite side of the noise collecting hole is characterized in that attached to the fan housing.

According to another suitable embodiment of the present invention,

The sound absorbing collecting member has a semicircular cross-sectional structure in the longitudinal direction to partially wrap the circumference of the rotating fan, and the sound absorbing collector has any one form selected from corrugated grooves, square grooves, and triangular grooves to increase the sound absorption area on its inner surface. It is characterized in that the uneven portion is formed.

According to another suitable embodiment of the present invention,

The sound absorbing collecting member is composed of a plurality of pieces, characterized in that the inner wall of the fan housing is sandwiched between the adjacent partitions formed at regular intervals in the circumferential direction.

According to another suitable embodiment of the present invention,

The sound absorbing collecting material is characterized in that the low density sound absorbing material and the high density sound absorbing material are alternately arranged.

According to another suitable embodiment of the present invention,

The fan housing is characterized in that it has a cross-sectional shape of any one of a circular, elliptical, hexagonal, hexagonal, octagonal in the longitudinal direction.

According to another suitable embodiment of the present invention,

The fan housing is composed of a semi-circular noise-side housing and a sound-absorbing side housing, the noise-side housing and the sound-absorbing side housing is characterized in that the upper and lower ends are connected and assembled by upper and lower housing connecting plates, respectively.

According to another suitable embodiment of the present invention,

The noise collecting hole formed in the noise-side housing is further provided with a noise inlet pin protruding inward.

According to the present invention, the rotating fan rotates freely by natural wind or wind pressure of a vehicle passage, and noise is introduced into the sound absorbing chamber by the rotation of the rotating fan. The introduced noise is collected, absorbed and extinguished by the sound absorbing collector disposed in the centrifugal direction of the rotating fan, thereby improving the noise damping ability.

In addition, the sound absorbing convex portion is formed in the sound absorbing collecting member to increase the sound absorbing area, and when the low density sound absorbing collecting member and the high density sound absorbing collecting member are installed, it is possible to absorb and absorb the noise in the low and high sound region.

In addition, the fan housing is composed of a divided sound-side housing and a sound-absorbing side housing, these housings are bound by the housing connecting plate is easy to install, easy to remove and provides the advantages of easy maintenance and maintenance.

In the following the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments presented are exemplary for a clear understanding of the present invention is not limited thereto.
1 is a perspective view of a soundproof wall using a fan type sound absorbing assembly according to the present invention.
Figure 2 is a side cross-sectional view of the soundproof wall using a fan type sound absorbing assembly according to the present invention.
Figure 3 is a perspective view of a fan type sound absorbing assembly according to an embodiment of the present invention.
Figure 4 is a side cross-sectional view of a fan type sound absorbing assembly according to an embodiment of the present invention.
Figure 5 is a side cross-sectional view of a fan type sound absorbing assembly according to a modified embodiment of the present invention.
6 is a perspective view of the sound absorbing material applied to FIG.
Figure 7 is a side cross-sectional view of a fan type sound absorbing assembly according to another modified embodiment of the present invention.
Figure 8 is a side cross-sectional view of a fan type sound absorbing assembly according to another modified embodiment of the present invention.
Figure 9 is a side cross-sectional view of a fan type sound absorbing assembly according to another modified embodiment of the present invention.
Figure 10 is a side cross-sectional view of a fan type sound absorbing assembly according to another modified embodiment of the present invention.

In the following the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments presented are exemplary for a clear understanding of the present invention is not limited thereto.

According to the present invention, the soundproof wall includes a sidewalk block block 200 installed at one side of a roadway as shown in FIGS. 1 and 2, and a plurality of fan type sound absorbing assemblies disposed in a length direction at different heights above the sidewalk block 200. (1) and the sound insulation board 300 which connects the adjacent fan type sound absorption assemblies 1 and 1 arranged up and down.

Sidewalk block 200 is made of concrete is not limited to a particular shape. The soundproof panel 300 may be made of transparent tempered glass, PMMA, synthetic resin, or the like in this embodiment.

The fan type sound absorbing assembly 1 has three stages in the height direction of the soundproof wall in the present embodiment, but may be increased or decreased according to the height of the soundproof wall. 3 and 4, the fan type sound absorbing assembly 1 has a fan housing having a sound collecting chamber 14 formed in a sound absorbing chamber 12 and formed toward the noise source 5 side and distributed in plurality. 10 is provided.

In the present embodiment, the fan housing 10 may be circular in the longitudinal direction as shown in FIG. 3 or may be configured as an oval as shown in FIG. 9. However, in the present invention, the fan housing 10 may be manufactured in a cross-sectional shape of any one of a quadrilateral, a hexagon, and an octagon.

In the present embodiment, the fan housing 10 includes a noise side housing 10a and a sound absorbing side housing 10b each having a semicircular shape. At this time, the upper side and the lower side of the noise-side housing (10a) and the sound-absorbing side housing (10b) is connected and assembled by upper and lower housing connecting plates (40, 42), respectively. The upper and lower housing connecting plates 40 and 42 have the same structure and have circular protrusions 40a formed at both ends, and the circular protrusions 40a have upper and lower ends of the noise-side housing 10a and the sound-absorbing side housing 10b. It is fitted to the circular groove (100a) formed in the (see enlarged view of Figure 3).

Thus, when the fan housing 10 is composed of a noise-side housing (10a) and a sound-absorbing side housing (10b), the noise collecting hole 14 is formed in the noise-side housing (10a). In the present embodiment, the noise collecting hole 14 has a long slit shape in the longitudinal direction of the cross section as shown in FIG. 3 and is arranged in a lattice, but the present invention is not limited to this form or arrangement. The noise collecting hole 14 not only introduces noise generated from the noise source side, but also flows of air generated by natural wind or wind pressure of the vehicle.

At this time, the noise collecting hole 14 formed in the noise-side housing 10a may further include a noise inflow pin 15 protruding inward as shown in FIGS. 4 and 8. The noise inlet pin 15 may be separately attached or be formed by bending the sound absorbing chamber 12 without cutting a portion during punching cutting to form the noise collecting hole 14.

Here, the noise-side housing (10a) and the sound-absorbing side housing (10b) can be made of metal or high strength recycled synthetic resin. In the present embodiment, two fan housings 10 are connected to the upper and lower two stages, but the present invention is sufficient if one or more.

The rotary fan 20 is disposed in the sound absorption chamber 12. Rotating fan 20 may be manufactured from a metal plate, but it is economically preferable to manufacture from recycled plastic. The rotary fan 20 is composed of a rotary blade 22 disposed at regular intervals on the fan rotation shaft 21 and the outer peripheral surface of the fan rotation shaft 21. At this time, the rotary blade 22 has an arc-shaped cross section in the longitudinal direction. At this time, the fan rotation shaft 21 is installed at both ends of the fan housing 10 so that rotation is freely installed. Therefore, the rotation fan 20 is freely rotated by the wind pressure generated by the natural wind or vehicle traffic introduced into the sound absorbing chamber 14 and introduced into the noise collecting hole 14.

The sound absorption collector 30 is attached to the inner wall of the fan housing 10. The sound absorbing collecting material 30 absorbs the noise introduced into the sound absorbing chamber 12 through the sound collecting hole 14. Sound absorbing collecting material 30 is preferably located on the opposite side of the sound collecting hole 14 is installed in the fan housing (10).

At this time, the sound absorbing collecting member 30 has a semicircular cross-sectional structure in the longitudinal direction so as to partially wrap the circumference of the rotating fan 20, and to increase the sound absorbing area on the inner surface of the cross section, as shown in FIGS. 5 and 6. The part 32 may be formed. Sound absorbing convex portion 32 may be formed as a corrugated groove, as shown in FIG. However, in the present invention, the sound absorbing convex portion 32 may be configured in the form of a square groove or a triangular groove.

The sound absorbing collecting material 30 is preferably a porous sound absorbing material having a lot of small bubbles or thin tubular holes on the surface and inside thereof, and the air in the holes is vibrated by sound waves and the noise energy is converted into thermal energy due to the friction generated at this time. . Therefore, the sound absorbing collecting material 30 may be made of a material of soft urethane foam, glass wool or polyester compressed fiber.

On the other hand, the sound absorbing collecting material 30 may be made of a plurality of pieces, as shown in Figure 7 can be fitted between the adjacent partition wall 11 formed at regular intervals in the circumferential direction at the inner wall of the fan housing 10. In this case, the sound absorbing collecting member 30 may be alternately arranged with the low density sound absorbing material 30a and the high density sound absorbing material 30b. At this time, the low density sound absorbing material 30a is for absorbing low sound, and the high density sound absorbing material 30b is for absorbing high sound. The low density sound absorbing material 30a and the high density sound absorbing material 30b as described above can be applied to the fan housing 10 having an elliptical shape as shown in FIG. 9.

The operation of the present embodiment thus configured will be described.

First, as shown in FIG. 2, the wind pressure or natural wind generated by the vehicle passage of the noise source 5 is introduced into the noise collecting hole 14 of the fan housing 10, so that the rotating fan 20 rotates freely. At this time, the rotation speed of the rotating fan 20 may be determined according to the vehicle wind pressure or the intensity of the natural wind.

At the same time, the noise generated from the noise source 5 is also introduced into the noise collecting hole 14 of the fan housing 20 as shown in FIG. 4. At this time, the sound inlet chamber 12 is deeply introduced into the sound absorbing chamber 12 by the noise inlet pin 15 extending inwardly.

At this time, the acoustic sound waves collide and scatter in the rotating fan 20 and at the same time lose sound wave energy and are collected and absorbed by the sound absorbing collecting material 30 by the rotating centrifugal force. Therefore, the noise coming into contact with the fan housing 20 has no diffraction phenomenon, and the sound is generated on the opposite side of the noise source.

In particular, the sound absorbing collecting member 30 has a larger sound absorbing area than the case where the sound absorbing concave-convex portion 32 is formed, as shown in FIG. In addition, the sound absorbing collecting material 30 has the advantage of absorbing both low and high sound areas when the low density sound absorbing material 30a and the high density sound absorbing material 30b as shown in FIGS. 7 and 9.

In addition, the fan housing 10 is composed of a semi-circular noise-side housing (10a) and the sound-absorbing side housing (10b) is connected and assembled by the upper and lower housing connecting plates (40, 42) to simplify the production, the rotary fan ( 20) becomes easy to install. In addition, by using recycled plastics for the handle housing 10 and the rotating fan 20, economical soundproof walls can be constructed. In addition, since the fan housing 10 is configured as a split assembly type and is connected and dismantled by the upper and lower housing connecting plates 40 and 42, maintenance of the soundproof wall is facilitated.

On the other hand, the present invention is configured by bending the upper and lower structures of the noise-side housing (10a) and the sound-absorbing side housing (10b) constituting the fan housing 10 in two stages, as shown in Figure 10, the noise-side housing (10a) The sound absorbing side housing 10b may be configured by interconnecting the upper housing connecting plate 40a and the lower housing connecting plate 42a with each other.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention .

1: Fan Type Sound Absorbing Assembly
10: fan housing
10a: Noise-side housing
10b: sound absorbing side housing
11: bulkhead
12: sound absorption chamber
14: Noise collector
15: Noise Induction Pin
20: rotating fan
30: sound absorption collector
32: sound absorption irregularities
40, 40a: upper housing connecting plate
42, 42a: Lower housing connection plate
200: sidewalk block
300: soundproof plate

Claims (9)

A sidewalk block block 200 installed on one side of the roadway;
A plurality of fan type sound absorbing assemblies (1) disposed in the length direction at different heights above the sidewalk block (200);
A soundproof plate 300 for connecting the adjacent fan type sound absorbing assemblies 1 and 1 disposed in the upper and lower portions with each other;
The fan type sound absorbing assembly 1,
A fan housing (10) having a sound absorbing chamber (12) formed therein and formed toward the noise source side and having a plurality of noise collecting holes (14) distributed therein;
A rotating fan 20 positioned in the sound absorbing chamber 12 and rotatably supported by the fan housing 12 to be rotated by natural wind or wind pressure of the vehicle; And
Located in the centrifugal direction of the rotary fan 20 is attached to the inner wall of the fan housing 10, the sound absorbing trap member (30) for collecting and absorbing the noise introduced into the sound absorbing chamber (12) through the noise collecting hole (14) Soundproof wall using a fan type sound absorbing assembly comprising a. The method of claim 1,
The sound absorbing collecting material 30 is made of soft urethane foam, glass wool, synthetic resin compressed fiber, which is selected from the other side of the noise collecting hole 14 is attached to the fan housing 10, characterized in that Soundproof wall using fan type sound absorbing assembly. The method of claim 2,
The sound absorbing collecting member 30 has a semicircular cross-sectional structure in the longitudinal direction to partially wrap the circumference of the rotating fan 20 and is selected from corrugated grooves, square grooves, and triangular grooves to increase the sound absorption area on the inner surface of the cross section. Soundproof wall using a fan-type sound absorbing assembly, characterized in that the sound-absorbing concave-convex portion 32 is formed in any one form. The method of claim 2,
The sound absorbing collecting member 30 is composed of a plurality of pieces of the fan type sound absorbing assembly, characterized in that the inner wall of the fan housing 10 is sandwiched between the adjacent partitions 11 formed at regular intervals in the circumferential direction. Used soundproof walls. The method of claim 4, wherein
The sound absorbing collecting member 30 is a soundproof wall using a fan type sound absorbing assembly, characterized in that the low density sound absorbing material and the high density sound absorbing material are alternately arranged. The method of claim 1,
The fan housing 10 is a soundproof wall using a fan type sound absorbing assembly, characterized in that it has a cross-sectional shape of any one of circular, oval, octagonal, hexagonal, octagonal in the longitudinal direction. The method of claim 1,
The fan housing 10 is composed of a semi-circular noise-side housing (10a) and a sound-absorbing side housing (10b), the noise-side housing (10a) and the sound-absorbing side housing (10b) is the upper and lower housings, respectively Soundproof wall using a fan-type sound absorbing assembly, characterized in that the connection by the connecting plate (40, 42 or 40a, 42a). 8. The method of claim 7,
The sound collecting wall using the fan type sound absorbing assembly, characterized in that the noise collecting hole 14 formed in the noise-side housing (10a) is further provided with a noise inlet pin 15 extending inwardly. Constructing a sidewalk block block 200 on one side of the roadway;
Disposing a plurality of fan type sound absorbing assemblies (1) in a longitudinal direction at different heights above the sidewalk block (200);
Construction is performed including the step of connecting the adjacent fan-type sound absorbing assembly (1,1) of different height to the soundproof plate 300;
The fan type sound absorbing assembly 1,
A fan housing (10) having a sound absorbing chamber (12) formed therein and formed toward the noise source side and having a plurality of noise collecting holes (14) distributed therein;
A rotating fan 20 positioned in the sound absorbing chamber 12 and rotatably supported by the fan housing 12 to be rotated by natural wind or wind pressure of the vehicle; And
Located in the centrifugal direction of the rotary fan 20 is attached to the inner wall of the fan housing 10, the sound absorbing material (30) for collecting and absorbing the noise introduced into the sound absorbing chamber 12 through the noise collecting hole (14) Construction method of the soundproof wall using a fan type sound absorbing assembly, characterized in that the construction.
KR1020110026368A 2011-03-24 2011-03-24 Soundproof wall using fan type sound absorption assembly and construction method thereof KR20120108471A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108560390A (en) * 2018-05-28 2018-09-21 温州博旺联科建筑工程有限公司 A kind of sound insulation bridge
CN108643025A (en) * 2018-05-28 2018-10-12 温州博旺联科建筑工程有限公司 A kind of bridge gobo
CN108916963A (en) * 2018-09-25 2018-11-30 广东海信家电有限公司 A kind of range hood baffle liner and range hood
CN111002658A (en) * 2019-11-28 2020-04-14 滕州深水湾复合材料科技有限公司 Composite material passenger car floor and manufacturing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108560390A (en) * 2018-05-28 2018-09-21 温州博旺联科建筑工程有限公司 A kind of sound insulation bridge
CN108643025A (en) * 2018-05-28 2018-10-12 温州博旺联科建筑工程有限公司 A kind of bridge gobo
CN108560390B (en) * 2018-05-28 2019-08-23 温州博旺联科建筑工程有限公司 A kind of sound insulation bridge
CN108643025B (en) * 2018-05-28 2019-08-27 温州博旺联科建筑工程有限公司 A kind of bridge gobo
CN108916963A (en) * 2018-09-25 2018-11-30 广东海信家电有限公司 A kind of range hood baffle liner and range hood
CN108916963B (en) * 2018-09-25 2023-11-07 广东海信家电有限公司 Range hood guide ring and range hood
CN111002658A (en) * 2019-11-28 2020-04-14 滕州深水湾复合材料科技有限公司 Composite material passenger car floor and manufacturing method thereof

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