TWI718689B - Sound-absorbing building materials structure - Google Patents

Abstract

A sound-absorbing building material structure is suitable for installation in a building. The building includes an inner wall surface that defines an indoor space. The sound-absorbing building material structure includes a porous unit and a supporting unit. The porous unit is made of metal or alloy and is suitable for being spaced apart from the inner wall of the building. The porous unit includes a first porous layer located inside the inner wall, and a first porous layer located between the first porous layer and the inner wall. The inner wall surface cooperates with the inner wall surface to define a second porous layer of a void layer. The supporting unit is suitable for connecting the building and the porous unit to support the porous unit. Utilizing the design of the porous unit and cooperating with the void layer can achieve an effective sound absorption effect and high durability.

Description

Sound-absorbing building materials structure

The invention relates to a building material, in particular to a sound-absorbing building material structure.

Soundproof building materials refer to building materials that can prevent indoor noise. They usually use "soundproof", "sound-absorbing", and "vibration-proof" methods to achieve the function of soundproofing. Among them, sound-absorbing building materials are built in the indoor space of a building, which can absorb the sound energy of the noise generating source, so that the sound will not be transmitted to the outside world, so as to improve the quality of life.

A sound-absorbing cotton board made of glass wool is one of the soundproof building materials currently used. The sound-absorbing cotton board has good sound-absorbing and anti-vibration effects. However, in the process of installing the sound-absorbing cotton board, the glass fibers suspended in the air can easily stimulate the mouth and nose of the construction workers and cause physical discomfort, and inhalation of a large amount of glass fibers will also have adverse effects on the body.

In addition, after long-term use of the sound-absorbing cotton board, it is also prone to problems due to moisture absorption and mold due to the humid environment, or poor durability due to the easy scattering of glass fibers. question.

Therefore, how to make sound-absorbing building materials not only have good sound-absorbing effects, but also have the safety during construction and the durability of the products, which is one of the important topics studied by people in this field.

Therefore, the purpose of the present invention is to provide a sound-absorbing building material structure that can overcome at least one of the disadvantages of the prior art.

Therefore, the sound-absorbing building material structure of the present invention is suitable for installation in a building that includes an inner wall surface that defines an indoor space. The sound-absorbing building material structure includes a porous unit and a supporting unit.

The porous unit is made of metal or alloy and is suitable for being spaced apart from the inner wall of the building. The porous unit includes a first porous layer located inside the inner wall, and a first porous layer located between the first porous layer and the inner wall. The inner wall surface cooperates with the inner wall surface to define a second porous layer of a void layer.

The supporting unit is suitable for connecting the building and the porous unit to support the porous unit.

The effect of the present invention is that by using the design of the porous unit and cooperating with the void layer, an effective sound absorption effect can be achieved. Furthermore, the porous unit does not produce glass fibers suspended in the air, and has high durability. Therefore, the service life of the sound-absorbing building material structure Long life.

1: Porous unit

11: The first porous layer

111: first surface

112: second surface

113: The first hole

12: second porous layer

121: Third Surface

122: fourth surface

123: second hole

124: top

125: bottom

126: Connection part

13: Connection layer

14: Space layer

2: Support unit

21: The first fixing part

22: The second fixing part

23: Connector

3: Expand the network

31: Hole

3’: Expansion network

31’: Hole

9: Architecture

91: inner wall

w1: width

w2: width

w3: width

H: height

T: thickness

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a three-dimensional schematic diagram illustrating that a first embodiment of the sound-absorbing building material structure of the present invention is applicable to a building; Figure 2 Is a schematic cross-sectional view illustrating the first embodiment; FIG. 3 is an incomplete three-dimensional view illustrating a first porous layer and a second porous layer of a porous unit of the first embodiment; FIG. 4 It is a photo of an expanded net used to make the porous unit of the first embodiment; FIG. 5 is a three-dimensional schematic diagram illustrating that a second embodiment of the sound-absorbing building material structure of the present invention is applicable to the building; FIG. 6 Is a schematic cross-sectional view illustrating the second embodiment; FIG. 7 is a photo of an expanded net used to make the porous unit of the second embodiment; and FIGS. 8-21 are specific examples 8 ~21 is a schematic cross-sectional view of the porous unit.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

1 to 3, a first embodiment of the sound-absorbing building material structure of the present invention is suitable for installation in a building 9. The building 9 includes an inner wall 91 surrounding an indoor space. The sound-absorbing building material structure includes a porous unit 1 and four supporting units 2.

The porous unit 1 is suitable for being spaced apart from the inner wall 91 of the building 9, and the cross-section is generally square, and includes a first porous layer 11 located inside the inner wall 91, and one with the first porous layer 11 to each other. A second porous layer 12 spaced apart and located between the first porous layer 11 and the inner wall surface 91, and two connecting layers 13 connected between two opposite sides of the first porous layer 11 and the second multilayer layer .

The first porous layer 11 is in the shape of a flat plate and has a first surface 111 adjacent to the inner wall surface 91 of the building 9 and a second surface 112 spaced apart from the first surface 111 and far away from the inner wall surface 91. The first porous layer 11 is formed with a plurality of first holes 113, and each of the first holes 113 penetrates the first surface 111 and the second surface 112. The first holes 113 are arranged in an array, and are generally square, diamond, rectangular, oval, hexagonal, or fan-shaped... and other shapes. In this embodiment, each of the first holes 113 of the first porous layer 11 has a length of 2 mm and a width of 1 mm, and is almost a rhombus.

The second porous layer 12 is also in the shape of a flat plate, and is in line with the inner wall surface of the building 9 The 91 are spaced apart from each other and are substantially parallel to the first porous layer 11. The second porous layer 12 has a third surface 121 that is adjacent to the inner wall surface 91 and cooperates with the inner wall surface 91 to define a void layer 14, and a third surface 121 spaced apart from the third surface 121 and far from the inner wall surface 91 of the fourth surface 122. The second porous layer 12 is formed with a plurality of second holes 123, and each second hole 123 penetrates the third surface 121 and the fourth surface 122. The second holes 123 are arranged in an array, and are generally square, diamond, rectangular, oval, hexagonal, or fan-shaped... and other shapes. In this embodiment, each second hole 123 of the second porous layer 12 has a length of 2 mm and a width of 1 mm, and is roughly rhombic (see FIG. 4). The porous unit 1 has a height H from the second surface 112 of the first porous layer 11 to the third surface 121 of the second porous layer 12, and the height H ranges from 25 mm to 85 mm.

When the porous unit 1 is manufactured, an expanded mesh 3 (as shown in FIG. 4) made of metal or alloy and having a plurality of holes 31 arranged in an array is prepared. The thickness of the expanded mesh 3 is 0.6 mm, each A hole 31 has a length of 2 mm and a width of 1 mm; then, the expanded net 3 is bent along a predetermined folding line, and the two opposite sides of the expanded net 3 are joined to each other to form the porous unit 1 as a whole.

The space layer 14 is an air layer filled with air. The void layer 14 has a thickness T from the third surface 121 of the second porous layer 12 to the inner wall surface 91 of the building 9 and is 150 mm to 500 mm. The porous units 1 and the void layer 14 together form a sound-absorbing structure with high sound resistance to consume sound energy to facilitate Sound-absorbing.

Each supporting unit 2 includes a first fixing member 21 suitable for being fixed to the building 9, a second fixing member 22 for erecting the porous unit 1, and a connection between the first fixing member 21 and the second fixing member 21. The connecting piece 23 between the fixing pieces 22. In the first embodiment, the first fixing member 21 is an expansion screw, the second fixing member 22 is a T-shaped iron, and the connecting member 23 is a steel wire, which can firmly suspend the porous unit 1 Hanging installation.

It should be noted that the connection manner of the support units 2 and the porous unit 1 is not limited to this, and the number is not limited to four. In other variations of this embodiment, the support units 2 can penetrate the porous unit. 1. Fix the porous unit 1 to the building 9; and the number of the supporting units 2 can be one, two, three, etc., depending on the area and weight of the porous unit 1.

It should also be noted that when the sound-absorbing building material structure is installed on the floor (or wall), the supporting unit 2 can be a light steel frame (not shown in the figure) that is arranged vertically and horizontally on the floor (or wall). . Since there are so many types of light steel frames and are not the focus of this creation, I will not repeat them here.

Referring to FIG. 5 to FIG. 7, it is a second embodiment of the sound-absorbing building material structure of the present invention. The difference between the second embodiment and the first embodiment lies in the porous unit 1. Only the differences are explained below.

The thickness of the first porous layer 11 and the second porous layer 12 of the porous unit 1 The degrees are 0.8 mm, and the length of each of the first hole 113 and the second hole 123 is 2 mm, and the width is 1 mm. The second porous layer 12 of the porous unit 1 includes a top portion 124 that extends back and forth and is spaced from the first porous layer 11, and a plurality of top portions 124 that extend back and forth and are alternately arranged with the top portions 124 and are connected to the first porous layer 11 The bottom part 125 which is in direct contact and is connected, and a plurality of connection parts 126. Each connecting portion 126 connects two adjacent top portions 124 and bottom portions 125. Therefore, the top portions 124, the bottom portions 125, and the connecting portions 126 of the second porous layer 12 are arranged in rows extending back and forth. The height H of the porous unit 1 (that is, the maximum distance between the second surface 112 of the first porous layer 11 and the third surface 121 of the second porous layer 12) is 25 mm to 85 mm. The thickness T of the void layer 14 (that is, the void layer 14 has a minimum distance from the third surface 121 of the second porous layer 12 to the inner wall surface 91 of the building 9) is 150 mm to 500 mm.

In the second embodiment, any two adjacent bottom portions 125 of the second porous layer 12, the top portions 124 and the connecting portions 126 located therein, cooperate with the corresponding first porous layer 11 to form a triangular column state. kind. In other variations of this embodiment, any two adjacent bottom portions 125 and top portions 124 and connecting portions 126 of the second porous layer 12 can cooperate with the corresponding first porous layer 11 to cooperate with each other. It is a rectangular parallelepiped, a trapezoidal column, etc... etc.

接接合，以形成該多孔單元1。 When the porous unit 1 is manufactured, two expanded nets 3'made of metal or alloy and having a plurality of holes 31' arranged in an array are prepared (as shown in FIG. 7, and only one expanded net is shown). 3'). The expanded net 3'has a thickness of 0.8 mm, and each hole 31' has a length of 2 mm and a width of 1 mm. Afterwards, one of the expanded nets 3'is bent along a predetermined folding line into the second porous layer 12 and the connecting layer 13, and two reserved parts located outside the connecting layer 13; and then the bent expanded net The 3'reserved part and another unbent flat expanded net 3'are mutually

Then, the porous unit 1 is formed.

Below, specific examples 1 to 36, and comparative examples 1 to 2 are tested for sound absorption performance to prove the effectiveness of the sound-absorbing building material structure.

Specific example 1

1 and 2 of the porous unit 1 and the void layer 14, the specific example 1 includes a plurality of light steel frames criss-crossed on the floor, placed on the light steel frame as shown in the first embodiment The porous unit 1 described. The floor and the second porous layer 12 of the porous unit 1 jointly define the void layer 14.

The thickness T of the space layer 14 is 200 mm. The height H of the porous unit 1 is 30 mm. The thickness T of the first porous layer 11 and the second porous layer 12 are both 0.6 mm, and the length of each first hole 113 and the second hole 123 is 2 mm, and the width is 1 mm.

Specific example 2~specific example 6

Specific examples 2 to 6 are similar to specific example 1, and the difference lies in: the thickness T of the space layer 14 and the height H of the porous unit 1 of the specific examples 2 to 6 are divided into two parts. Listed in Table 1.

Specific example 7

5 and 6 of the porous unit 1 and the void layer 14, the specific example 7 includes a plurality of criss-crossed light steel frame erected on the floor, placed on the light steel frame as shown in the second embodiment The porous unit 1 described. The floor and the second porous layer 12 of the porous unit 1 jointly define the void layer 14 (as shown in FIG. 5).

The thickness T of the space layer 14 is 450 mm. The height H of the porous unit 1 is 80 mm. The thickness T of the first porous layer 11 and the second porous layer 12 are both 0.6 mm, and the length of each first hole 113 and the second hole 123 is 2 mm, and the width is 1 mm. The two adjacent bottom portions 125 of the second porous layer 12 and the connecting portion 126 and the top portion 124 therebetween cooperate with the first porous layer 11 to form a triangular column. The sum of the width w1 of the two adjacent connecting portions 126 of the second porous layer 12 is 200 mm, and the included angle θ is 103 degrees.

Specific example 8

Referring to FIG. 8, specific example 8 is similar to specific example 7, and the difference lies in the aspect of the second porous layer 12 of the porous unit 1.

The second porous layer 12 cooperates with the first porous layer 11 to define an extra rectangular parallelepiped. The width w2 of each top 124 of the second porous layer 12 is 190 mm, and the width w3 of each bottom 125 is 15 mm. .

Specific example 9

Referring to FIG. 9, specific example 9 is similar to specific example 7, and the difference lies in the aspect of the second porous layer 12 of the porous unit 1.

The second porous layer 12 cooperates with the first porous layer 11 to define an extra rectangular parallelepiped. The width w2 of each top 124 of the second porous layer 12 is 75 mm, and the width w3 of each bottom 125 is 30 mm. .

Specific example 10

Referring to FIG. 10, specific example 10 is similar to specific example 7, and the difference lies in the aspect of the second porous layer 12 of the porous unit 1.

The second porous layer 12 cooperates with the first porous layer 11 to define more trapezoidal columns. The width w2 of each top 124 of the second porous layer 12 is 140 mm, and the width w3 of each bottom 125 The width w1 of each connecting portion 126 is 40 mm.

Specific example 11

Referring to FIG. 11, specific example 11 is similar to specific example 7, and the difference lies in the aspect of the second porous layer 12 of the porous unit 1.

The second porous layer 12 cooperates with the first porous layer 11 to define more trapezoidal columns. The width w2 of each top 124 of the second porous layer 12 is 25 mm, and the width w3 of each bottom 125 The width w1 of each connecting portion 126 is 40 mm.

Specific example 12

Referring to FIG. 12, specific example 12 is similar to specific example 7, except that the shape of the second porous layer 12 and the height H of the porous unit 1 are 55 mm.

The two adjacent bottom portions 125 of the second porous layer 12 and the connecting portion 126 and the top portion 124 located therein cooperate with the first porous layer 11 to form a triangular column. The sum of the width w1 of the two adjacent connecting portions 126 of the second porous layer 12 is 150 mm, and the included angle θ is 107 degrees.

Specific example 13

Referring to FIG. 13, specific example 13 is similar to specific example 12, and the difference lies in the aspect of the second porous layer 12.

The two adjacent bottom portions 125 of the second porous layer 12 and the connecting portion 126 and the top portion 124 therebetween cooperate with the first porous layer 11 to form a triangular column. The total width w1 of the two adjacent connecting portions 126 of the second porous layer 12 is 120 mm, and the included angle θ is 95 degrees.

Specific example 14

Referring to FIG. 14, specific example 14 is similar to specific example 12, and the difference lies in the aspect of the second porous layer 12.

The second porous layer 12 cooperates with the first porous layer 11 to define an extra rectangular parallelepiped. The width w2 of each top 124 of the second porous layer 12 is 190 mm, and the width w3 of each bottom 125 is 15 mm. .

Specific example 15

Referring to FIG. 15, specific example 15 is similar to specific example 12, and the difference lies in the aspect of the second porous layer 12.

The second porous layer 12 cooperates with the first porous layer 11 to define an extra rectangular parallelepiped. The width w2 of each top 124 of the second porous layer 12 is 75 mm, and the width w3 of each bottom 125 is 30 mm. .

Specific example 16

Referring to FIG. 16, specific example 16 is similar to specific example 12, and the difference lies in the aspect of the second porous layer 12.

The second porous layer 12 cooperates with the first porous layer 11 to define more trapezoidal columns. The width w2 of each top 124 of the second porous layer 12 is 150 mm, and the width w3 of each bottom 125 It is 20 mm, and the width w1 of each connecting portion 126 is 27.5 mm.

Specific example 17

Referring to FIG. 17, specific example 17 is similar to specific example 12, and the difference lies in the aspect of the second porous layer 12.

The second porous layer 12 cooperates with the first porous layer 11 to define more trapezoidal columns. The width w2 of each top 124 of the second porous layer 12 is 25 mm, and the width w3 of each bottom 125 It is 35 mm, and the width w1 of each connecting portion 126 is 27.5 mm.

Specific example 18

Referring to FIG. 18, the specific example 18 is similar to the specific example 12, and the difference lies in the aspect of the second porous layer 12 and the height H of the porous unit 1 is 30 mm.

The second porous layer 12 cooperates with the first porous layer 11 to define an extra rectangular parallelepiped. The width w2 of each top 124 of the second porous layer 12 is 190 mm, and the width w3 of each bottom 125 is 15 mm. .

Specific example 19

Referring to FIG. 19, specific example 19 is similar to specific example 18, and the difference lies in the aspect of the second porous layer 12.

The second porous layer 12 cooperates with the first porous layer 11 to define an extra rectangular parallelepiped. The width w2 of each top 124 of the second porous layer 12 is 75 mm, and the width w3 of each bottom 125 is 30 mm. .

Specific example 20

Referring to FIG. 20, specific example 20 is similar to specific example 18, and the difference lies in the aspect of the second porous layer 12.

The second porous layer 12 cooperates with the first porous layer 11 to define more trapezoidal columns. The width w2 of each top 124 of the second porous layer 12 is 170 mm, and the width w3 of each bottom 125 The width w1 of each connecting portion 126 is 15 mm.

Specific example 21

Referring to Figure 21, specific example 21 is similar to specific example 18, but the difference lies in This is the aspect of the second porous layer 12.

The second porous layer 12 cooperates with the first porous layer 11 to define more trapezoidal columns. The width w2 of each top 124 of the second porous layer 12 is 50 mm, and the width w3 of each bottom 125 It is 30 mm, and the width w1 of each connecting portion 126 is 15 mm.

Specific example 22~specific example 36

Specific example 22 to specific example 36 are similar to specific example 7 to specific example 21, respectively, and the difference is that the thickness T of the space layer 14 (as shown in FIGS. 5 and 6) is 200 mm.

Comparative example 1

The porous unit of the comparative example is a single-layer porous metal layer made of expanded mesh; the thickness of the porous metal layer is 0.6 mm, the length of each hole is 2 mm, and the width is 1 mm. The thickness of the space layer is 210 mm.

Comparative example 2

Comparative Example 2 is similar to Comparative Example 1, and the difference is that: Comparative Example 2 also includes a glass wool laid on the inner wall surface as a sound-absorbing layer.

Sound absorption performance measurement method

Specific Example 1~Concrete Example 36 and Comparative Example 1~Comparative Example 2 firstly measure a sound absorption coefficient (SOUND ABSORPTION COEFFICIENT, α _s ) according to the CNS 9056 sound absorption volume measurement method, and then use the CNS 15218 sound absorption material-absorption volume evaluation method. With reference to the reference curve of the actual sound absorption coefficient (PRACTICAL SOUND ABSORPTION COEFFICIENT, α _p ), a weighted sound absorption coefficient (WEIGHTED SOUND ABSORPTION COEFFICIENT, α _w ) is calculated (listed in Table 1). The higher the weighted sound absorption coefficient α _{w, the} better the sound absorption performance. When the weighted sound absorption coefficient α _{w of} the tested sound-absorbing material is above 0.65, it reaches the sound-absorbing level of C-level or above as assessed by CNS 15218, which can effectively prevent noise from affecting the quality of life.

It can be understood from the results in Table 1 that the sound absorption coefficients of Specific Example 1 to Specific Example 36 are not less than 0.65, which is much greater than that of Comparative Example 1 where a single porous metal layer is used as the porous unit 1. In addition, the sound absorption coefficients of specific example 1 to specific example 36 are equivalent to those of comparative example 2, and all reach the sound absorption level of C level or higher as assessed by CNS 15218, which means that the sound-absorbing building material structure of the present invention can be achieved by using the design of the porous unit 1 A single porous metal layer matches the sound absorption effect of the glass wool.

In summary, the sound-absorbing building material structure of the present invention utilizes the double-layer porous metal layer of the porous unit 1 and cooperates with the void layer 14 to have an effective sound-absorbing effect. In addition, because the sound-absorbing building material structure does not require glass wool, a similar effect can be achieved. Therefore, when installing the sound-absorbing building material structure, it can avoid the problem that the construction workers must install the glass wool and the glass fibers suspended in the air excessively irritate the mouth and nose, and relatively maintain the health of the personnel. Furthermore, the first porous layer 11 and the second porous layer 12 of the porous unit 1 are made of metal or alloy, which has high durability and is not easy to mold, so that the sound-absorbing building material structure has a long service life, so it can To achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to The scope covered by the invention patent 内内。 In the enclosure.

1: Porous unit

11: The first porous layer

12: second porous layer

13: Connection layer

14: Space layer

2: Support unit

21: The first fixing part

22: The second fixing part

23: Connector

9: Architecture

91: inner wall

Claims (5)

A sound-absorbing building material structure suitable for installation in a building. The building includes an inner wall surface that defines an indoor space. The sound-absorbing building material structure includes: a porous unit made of metal or alloy and suitable for use with The inner wall surface of the building is arranged at intervals, and the porous unit includes a first porous layer located inside the inner wall surface, and a partition between the first porous layer and the inner wall surface and cooperates with the inner wall surface to define a partition The second porous layer of the empty layer; and a supporting unit adapted to connect the building and the porous unit to support the porous unit; wherein the first porous layer of the porous unit is formed with a plurality of first holes , And having a first surface adjacent to the spacer layer, and a second surface spaced from the first surface and far from the spacer layer, each first hole penetrates the first surface and the second surface; wherein The second porous layer of the porous unit is formed with a plurality of second holes, and has a third surface that defines the space layer, and a fourth surface spaced from the third surface and far from the space layer. Surface, each second hole penetrates the third surface and the fourth surface; wherein, the void layer is an air layer filled with air; wherein, the second surface of the first porous layer and the second surface The maximum distance between the third surface of the porous layer is 25mm to 85mm; wherein the void layer has a minimum distance from the third surface of the second porous layer to the inner wall surface of the building, and the minimum distance is 150mm To 500mm. The sound-absorbing building material structure according to claim 1, wherein the porous unit The first porous layer and the second porous layer are spaced apart from each other, and both have a flat plate shape. The sound-absorbing building material structure according to claim 1, wherein the second porous layer of the porous unit further includes a plurality of tops spaced apart from the first porous layer, and a plurality of tops arranged alternately with the tops and connected to the The bottom part connected to the first porous layer, and a plurality of connecting parts respectively connecting the top part and the bottom part. The sound-absorbing building material structure according to claim 3, wherein the tops, the bottoms, and the connecting parts of the second porous layer are arranged in rows. The sound-absorbing building material structure according to claim 1, wherein the supporting unit includes a first fixing member suitable for being fixed to the building, a second fixing member installed on the porous unit, and a connection to the first fixing member The connecting piece of the second fixing piece.

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