KR20240059713A - Ceiling structure for blocking noise between floors - Google Patents

Abstract

One embodiment of the present invention provides a ceiling structure for blocking inter-floor noise that can effectively reduce inter-floor noise. Here, the ceiling structure for blocking noise between floors includes a ceiling finishing material and a sound insulation board. Ceiling finishing materials are installed on the lower side of the slab that divides each floor of a building to form the ceiling of the lower floor. The sound insulation board is provided on the upper part of the ceiling finishing material and blocks noise transmitted through the ceiling space formed between the slab and the ceiling finishing material. The ceiling finishing material has a plurality of holes formed at regular intervals along the first horizontal direction on the upper surface, and among the plurality of holes, adjacent holes in the first horizontal direction are formed at different depths.

Description

Ceiling structure for blocking noise between floors {CEILING STRUCTURE FOR BLOCKING NOISE BETWEEN FLOORS}

The present invention relates to a ceiling structure for blocking inter-floor noise, and more specifically, to a ceiling structure for blocking inter-floor noise that can effectively reduce inter-floor noise.

In general, each floor in a building is divided by a reinforced concrete slab, and a piping layer with lightweight fillers and heating pipes is installed on the upper part of the slab. A hanger is installed on the lower part of the slab, and a gypsum board is installed on the slab. is assembled to form the ceiling of the lower floor.

However, in this type of floor structure in apartments and other apartments, floor impact sounds are easily transmitted to the lower floors, so noise disputes between households between floors continue.

To solve this problem, methods are being explored to construct a lightweight foamed concrete layer or cushioning material during floor construction. However, this may cause light impact noise from walking on the floor or dragging a chair, as well as children running on the floor or dropping objects. The effect of reducing the weight impact noise generated when using a vehicle is low.

Therefore, in some households, in order to reduce floor impact noise, soundproofing sheets made of urethane or rubber with excellent soundproofing properties are purchased separately and placed on the floor.

Therefore, there is an urgent need to improve fundamental inter-floor noise and shock insulation.

Republic of Korea Patent Publication No. 2226686 (announced on March 11, 2021)

In order to solve the above problems, the technical problem to be achieved by the present invention is to provide a ceiling structure for blocking inter-floor noise that can effectively reduce inter-floor noise.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

In order to achieve the above technical problem, one embodiment of the present invention includes a ceiling finishing material installed on the lower side of the slab dividing each floor of a building to form the ceiling of the lower floor; and a sound insulation board provided on an upper part of the ceiling finishing material and blocking noise transmitted through a ceiling space formed between the slab and the ceiling finishing material, wherein the ceiling finishing material is spaced at regular intervals along the first transverse direction on the upper surface. It provides a ceiling structure for blocking inter-floor noise, characterized in that it has a plurality of holes formed, and among the plurality of holes, holes adjacent to the first transverse direction are formed at different depths.

In an embodiment of the present invention, the depth of the plurality of holes arranged in the first horizontal direction may be formed in a sinusoidal shape.

In an embodiment of the present invention, the depth of the plurality of holes along the first transverse direction may be formed in a sawtooth wave shape.

In an embodiment of the present invention, a plurality of sound insulating plates are provided in the form of a grid on the ceiling finishing material, and among the plurality of sound insulating plates, neighboring sound insulating plates with respect to the sides may be arranged to have different resonance frequencies. .

In an embodiment of the present invention, a plurality of sound insulating plates are provided in a grid shape on the ceiling finishing material, and a sound insulating plate having a relatively low resonance frequency among the plurality of sound insulating plates is disposed in the central area of the ceiling finishing material, Among the plurality of sound insulating plates, a sound insulating plate having a relatively high resonance frequency may be disposed in an edge area of the ceiling finishing material.

According to an embodiment of the present invention, the ceiling finishing material may be formed to interact with the sound insulating plate to generate surface waves between the sound insulating plate and the ceiling finishing material so that some of the sound wave energy is lost, thereby increasing the sound insulating effect. can do.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

Figure 1 is an exemplary diagram showing a ceiling structure for blocking noise between floors according to an embodiment of the present invention.
Figure 2 is an exemplary diagram showing a sound insulation plate in a ceiling structure for blocking noise between floors according to an embodiment of the present invention.
Figure 3 is an example diagram for explaining the principle of a sound insulation plate in a ceiling structure for blocking inter-floor noise according to an embodiment of the present invention.
Figure 4 is an exemplary diagram showing a ceiling finishing material in a ceiling structure for blocking noise between floors according to an embodiment of the present invention.
Figure 5 is a cross-sectional example showing a ceiling finishing material in a ceiling structure for blocking noise between floors according to an embodiment of the present invention.
Figure 6 is an exemplary diagram for explaining the sound insulation principle in the sound insulation plate and ceiling finishing material of the ceiling structure for blocking inter-floor noise according to an embodiment of the present invention.
Figure 7 is an exemplary diagram showing another example of a ceiling finishing material in a ceiling structure for blocking noise between floors according to an embodiment of the present invention.
Figure 8 is an example diagram showing the shape in which the central pattern area and surrounding pattern area of the sound insulating plate have different sizes in the ceiling structure for blocking inter-floor noise according to an embodiment of the present invention.
Figure 9 is an exemplary diagram for explaining an example of the arrangement of a sound insulation plate in a ceiling structure for blocking noise between floors according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention may be implemented in various different forms and, therefore, is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts unrelated to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, combined)" with another part, this means not only "directly connected" but also "indirectly connected" with another member in between. "Includes cases where it is. Additionally, when a part is said to “include” a certain component, this does not mean that other components are excluded, but that other components can be added, unless specifically stated to the contrary.

The terms used in this specification are merely used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that it does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is an exemplary diagram showing a ceiling structure for blocking noise between floors according to an embodiment of the present invention.

As shown in FIG. 1, the ceiling structure for blocking noise between floors may include a ceiling finishing material 100 and a sound insulation plate 200.

The ceiling finishing material 100 may be coupled to the ceiling frame 30 installed on the lower side of the slab 20 that divides each floor of the building to form the ceiling of the lower floor.

Here, the slab 20 is connected to the exterior wall 10 of the building to partition each floor, and may be a reinforced concrete slab, and becomes the floor of the floor formed on the upper side.

And, the ceiling frame 30 may have a hanger 31 and a horizontal bar 32. The hanger 31 has an upper end coupled to the lower part of the slab 20 and extends downward. The horizontal bar 32 is coupled to the lower end of the hanger 31 and arranged horizontally.

The ceiling finishing material 100 is coupled to the lower part of the horizontal bar 32 to form the ceiling of the lower floor. The ceiling finishing material 100 may be, for example, gypsum board.

A ceiling space 40 is formed between the slab 20 and the ceiling finishing material 100.

The sound insulation plate 200 is provided on the upper part of the ceiling finishing material 100 and can block noise transmitted through the ceiling space 40.

In addition, the ceiling finishing material 100 may be formed to interact with the sound insulation plate 200 to generate surface waves between the sound insulation plate 200 and the ceiling finishing material 100 so that some of the sound wave energy is lost, which causes The sound insulation effect can be increased through this.

In detail, Figure 2 is an exemplary diagram showing a sound insulating plate in a ceiling structure for blocking inter-floor noise according to an embodiment of the present invention, and Figure 3 is a sound insulating plate in a ceiling structure for blocking inter-floor noise according to an embodiment of the present invention. This is an example to explain the principle.

As shown in Figures 2 and 3, the sound insulation plate 200 is used to block noise and may include a pattern frame 210 and an elastic film 215.

The pattern frame 210 may include a central pattern area 211 and a plurality of peripheral pattern areas 212.

An outer frame 214 is formed at the edge of the pattern frame 210, and a central pattern area 211 and a plurality of peripheral pattern areas 212 may be formed inside the outer frame 214.

The central pattern area 211 is located in the center of the pattern frame 210. The central pattern area 211 is surrounded by a separation bar 213 and is an area formed to penetrate along the direction of air movement.

A plurality of peripheral pattern areas 212 are provided and each is arranged around the central pattern area 211. The peripheral pattern area 212 is formed separated from the central pattern area 211 by a separation bar 213, and, like the central pattern area 211, is an area formed to penetrate along the direction of air movement.

The central pattern area 211 of this embodiment may be formed in a square shape among polygonal shapes, and the peripheral pattern area 212 may be formed in a triangular shape and arranged to contact each side of the central pattern area 211.

The pattern frame 210 may be made of plastic materials such as polypropylene (PP), polycarbonate (PC), acetal, acrylic, and acrylonitrile-butadien-styrene (ABS).

The elastic membrane 215 is installed to block the path of air, converts sound waves in the air into elastic waves, and is mounted on the pattern frame 210.

The elastic membrane 215 may be made of materials such as low-density polyethylene (LDPE), polyurethane (PU), polyethylene terephthalate (PET), polypropylene (PP), and latex. You can.

In FIG. 2, a plurality of pattern frames 210 are provided, and the pattern frames 210 are shown to be mounted on one side and the other side of the elastic membrane 215, but the pattern frame 210 is not necessarily limited thereto. ) may be implemented as being mounted only on one side or the other side of the elastic membrane 215.

Referring to FIG. 3, at the resonance frequency of the sound insulating plate 200, the displacement of the elastic film 215a in the central pattern area and the displacement of the elastic film 215b in the peripheral pattern area are formed to be opposite to each other. At this time, the sound insulation plate 200 is designed to have a resonance frequency that is the same as the target frequency of the noise to be blocked.

For example, at a certain moment in the resonance frequency band of the sound insulation plate 200, the displacement of the elastic film 215b in the peripheral pattern area is formed toward the direction B of the air, and the elastic film 215a in the central pattern area is formed. ) displacement may be formed in the direction opposite to the direction of air movement (B). At the next moment, the displacement of the elastic film 215b in the peripheral pattern area is formed in the direction opposite to the direction B of the air, and the displacement of the elastic film 215a in the central pattern area is in the direction B of the air. can be formed towards

In this way, when the displacement of the elastic film 215a in the central pattern area has a positive displacement in the direction B of the air, the displacement of the elastic film 215b in the peripheral pattern area has a negative displacement, and the displacement of the elastic film 215b in the peripheral pattern area has a negative displacement, When the displacement of the elastic film 215a in the central pattern area in the traveling direction B has a negative displacement, the resonance mode in which the displacement of the elastic film 215b in the peripheral pattern area has a positive displacement is repeated.

As the displacement of the elastic film 215a in the central pattern area and the displacement of the elastic film 215b in the peripheral pattern area are opposite to each other, the elastic film 215 is formed as an average of the displacements at the local positions of the elastic film 215. )'s effective displacement can be close to zero.

When the effective displacement of the elastic film 215 becomes zero, a phenomenon occurs in which the sound wave energy of the air is hardly transmitted through the elastic film 215, and as a result, noise in the target frequency band is transmitted through the elastic film 215. It can be blocked without being transmitted downstream.

The phenomenon in which the effective displacement of the elastic membrane 215 approaches almost zero is expressed as the effective density of the air being maximized. When the effective density of the air is maximized, the sound wave reacts as if the sound insulating plate 200 is a very heavy wall, so the sound insulating plate (200) As sound waves that reach 200) are reflected, the transmission of sound waves can be blocked.

At this time, it is preferable that the sum of the area of the central pattern area 211 and the area of the plurality of peripheral pattern areas 212 are substantially equal. This is because in order for the effective displacement of the elastic membrane 215 to be zero, the area with positive displacement and the area with negative displacement must be substantially equal.

The resonance frequency of the sound insulation plate 200 can be adjusted by changing the pattern of the pattern frame 210, the thickness and tension of the elastic membrane 215, etc.

Additionally, the resonant frequency of the sound insulation panel 200 may correspond to noise caused by air filled in the ceiling space 40. The ceiling space 40 itself may function as a chamber, and thus may have a resonance frequency unique to the ceiling space 40. The sound insulation plate 200 may have a resonance frequency unique to the ceiling space 40. By forming a resonant frequency, that is, a resonant frequency corresponding to the target frequency, noise transmitted through the ceiling space 40 can be blocked.

Figure 4 is an exemplary diagram showing a ceiling finishing material in a ceiling structure for blocking inter-floor noise according to an embodiment of the present invention, and Figure 5 is an exemplary diagram showing a ceiling finishing material in a ceiling structure for blocking inter-floor noise according to an embodiment of the present invention. This is a cross-sectional example.

As shown in FIGS. 4 and 5, the ceiling finishing material 100 may have a plurality of holes 110 formed on the upper surface 101.

Here, the hole 110 may be formed with one end closed without penetrating the ceiling finishing material 100. Additionally, the holes 110 may be arranged at regular intervals along the first transverse direction A1.

In particular, among the plurality of holes 110, neighboring holes in the first transverse direction A1 may be formed at different depths.

Accordingly, neighboring holes of holes arranged in the first transverse direction A1 do not have the same depth, and holes arranged along the first transverse direction A1 can have changing shapes. In other words, the holes arranged along the first transverse direction A1 may be formed with non-uniform depths that are not the same and vary.

Additionally, the hole 110 may be formed to extend along the second transverse direction A2. That is, the hole 110 may be formed as a line along the second transverse direction A2, and through this, one-dimensional wave control may be possible.

Referring to FIG. 5 , some of the holes 110a, 110b, and 110c of the holes arranged in the first transverse direction A1 may form a unit pattern C. Additionally, the holes 110a, 110b, and 110c in the unit pattern C may have different depths.

That is, if a hole 110a is formed at a first depth D1, the hole 100b immediately adjacent to the hole 110a along the first transverse direction A1 has a depth lower than the first depth D1. It can be formed to 2 depths (D2). Additionally, another hole 100c immediately adjacent to the hole 110b along the first transverse direction A1 may be formed to have a third depth D3 that is lower than the second depth D2.

These unit patterns C may be repeated while being symmetrical to each other along the first transverse direction A1, or may be repeated in the same form along the first transverse direction A1.

When the unit patterns C are repeated while being symmetrical to each other along the first transverse direction A1, the depth of the holes 110 arranged in the first transverse direction A1 may periodically change to increase or decrease.

In particular, the depth of the hole arranged along the first transverse direction A1 may be formed in a sinusoidal waveform (see (a) of FIG. 5) or in the form of an exponential pulse (FIG. 5 (see (b) of).

In addition, when the unit pattern C is repeated in the same form along the first transverse direction A1, the depth of the holes 110 arranged in the first transverse direction A1 may be formed in a sawtooth wave shape (Figure (see (c) of 5).

Figure 6 is an exemplary diagram for explaining the sound insulation principle in the sound insulation plate and ceiling finishing material of the ceiling structure for blocking inter-floor noise according to an embodiment of the present invention.

First, Figure 6 (a) shows a case in which no hole is formed in the ceiling finishing material 100a. As described above, in the sound insulation plate 200, the elastic film 215a in the central pattern area and the surrounding pattern area are Since the elastic membranes 215b can be repeatedly deformed while having opposite displacements, a vortex (E ) may occur. This vortex (E) means stagnation of noise energy, and since it can function as a disturbing frequency, it can lower the sound insulation effect in the ceiling finishing material (100a).

However, as shown in (b) of FIG. 6, when the above-described hole 110 is formed in the ceiling finishing material 100, the sound insulation plate 200 is ) and the ceiling finishing material 100, surface waves may be generated. And the surface wave can be transmitted in the first transverse direction (A1). Then, the vortices can be reduced. Additionally, because some of the noise energy may be lost due to kinetic energy caused by surface waves, the sound insulation effect may be increased.

Figure 7 is an exemplary diagram showing another example of a ceiling finishing material in a ceiling structure for blocking noise between floors according to an embodiment of the present invention.

As shown in FIG. 7, the holes 110' may be arranged at regular intervals along the first transverse direction A1 and the second transverse direction A2.

That is, while the hole 110 in FIG. 4 is formed in the form of a line, as shown in FIG. 7, the hole 110' is formed in the shape of a point and extends in the first transverse direction A1 and the second transverse direction A2. They can be arranged at regular intervals.

Additionally, the holes 110' arranged in the second transverse direction A2 may be formed to have the same depth.

Figure 8 is an example diagram showing the shape in which the central pattern area and surrounding pattern area of the sound insulating plate have different sizes in the ceiling structure for blocking inter-floor noise according to an embodiment of the present invention.

As shown in Figures 2 and 8, a plurality of sound insulation plates may be provided in a grid form on the ceiling finishing material. Additionally, the size of the pattern frame can be adjusted depending on the target frequency band of the noise to be blocked.

When the shape shown in Figure 2 (a) is considered a unit cell of a sound insulation board, as shown in Figure 8 (a), when the target frequency of the noise to be blocked is relatively low, one side of the cell (G1) As the length h1 is formed to be relatively long, the size of the cell G1 can be formed to be relatively large.

On the other hand, as shown in (b) of FIG. 8, when the target frequency of the noise to be blocked is relatively high, the length (h2) of one side of the cell (G2) is formed relatively short, thereby reducing the size of the cell (G2). It can be formed small.

At this time, the size of the central pattern areas 211a and 211b and the sizes of the peripheral pattern areas 212a and 212b are preferably changed in proportion to the size of the pattern frames 210a and 210b.

Meanwhile, although not shown, the pattern frame 210 may further include a plurality of uneven portions formed on the edge. In this case, since neighboring pattern frames 210 can be coupled to each other through the uneven portions, multiple pattern frames 210 can be easily coupled to each other through the uneven portions, and the sound insulation plate 200 has a large area. It can be achieved.

Figure 9 is an exemplary diagram for explaining an example of the arrangement of a sound insulation plate in a ceiling structure for blocking noise between floors according to an embodiment of the present invention.

When a plurality of sound insulation plates arranged in a matrix all have the same resonant frequency, specific frequencies can be transmitted well. In other words, when a plurality of sound insulation plates have uniformity, a specific resonance sound can be transmitted well.

To prevent this, as shown in (a) of FIG. 9, neighboring sound insulating plates 200a and 200b with respect to the side J may be arranged to have different resonance frequencies.

Accordingly, among the plurality of sound insulating plates 200a and 200b, sound insulating plates arranged in the horizontal and vertical directions may be arranged to have different resonance frequencies.

On the other hand, among the plurality of sound insulating plates 200a and 200b, neighboring sound insulating plates based on the vertex K, that is, sound insulating plates arranged diagonally, may be arranged to have the same resonance frequency.

Alternatively, as shown in Figure 9 (b), a sound insulating plate 200a having a relatively low resonance frequency among a plurality of sound insulating plates is disposed in the central area L of the ceiling finishing material, and an edge area of the ceiling finishing material ( Among the plurality of sound insulating plates, a sound insulating plate 200b having a relatively high resonance frequency may be disposed in M).

The outer surface of the ceiling space 40 (see FIG. 1) becomes the outer wall 10 (see FIG. 1) of the building. Accordingly, relatively high-frequency vibration may occur at the edge of the ceiling space 40 compared to the central portion of the ceiling space 40.

Therefore, the sound insulation plate 200a having a relatively low resonance frequency is disposed in the central area of the slab and the sound insulation plate 200b having a relatively high resonance frequency is disposed in the edge area of the slab, thereby forming the ceiling space 40 ) noise can be blocked more effectively.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as single may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

20: Slab
100: Ceiling finishing material
110: Hall
200: sound insulation board

Claims (5)

Ceiling finishing materials installed on the lower side of the slab dividing each floor of a building to form the ceiling of the lower floor; and
It is provided on an upper part of the ceiling finishing material and includes a sound insulation plate that blocks noise transmitted through the ceiling space formed between the slab and the ceiling finishing material,
The ceiling finishing material has a plurality of holes formed at regular intervals along a first horizontal direction on the upper surface, and among the plurality of holes, adjacent holes in the first horizontal direction are formed at different depths. Ceiling structure to block noise between floors. According to paragraph 1,
A ceiling structure for blocking inter-floor noise, wherein the depth of the plurality of holes arranged in the first transverse direction is formed in a sinusoidal shape. According to paragraph 1,
A ceiling structure for blocking inter-floor noise, wherein the depth of the plurality of holes along the first transverse direction is formed in a sawtooth wave shape. According to paragraph 1,
A ceiling for blocking inter-floor noise, wherein a plurality of sound insulating plates are provided in a grid shape on the ceiling finishing material, and among the plurality of sound insulating plates, neighboring sound insulating plates with respect to sides are arranged to have different resonance frequencies. structure. According to paragraph 1,
A plurality of sound insulating plates are provided in a grid shape on the ceiling finishing material, wherein a sound insulating plate having a relatively low resonance frequency among the plurality of sound insulating plates is disposed in a central area of the ceiling finishing material, and a plurality of sound insulating plates are disposed in an edge area of the ceiling finishing material. A ceiling structure for blocking inter-floor noise, characterized in that among the sound insulating plates, a sound insulating plate having a relatively high resonance frequency is disposed.

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