Sound-absorbing decorative structure

Abstract

The present disclosure relates to a sound-absorbing decorative structure comprising a back panel having a rear surface and a plurality of coupling slots formed on one surface, a group of semicircular ring panels having both ends coupled to one surface of the back panel to form a curved three-dimensional outer shape, and a horizontal support plate disposed inside the curved three-dimensional outer shape. Semicircular ring panels of different diameters are stacked to form a fine gap between them, and the fine gap forms a sound-absorbing passage for sound waves directed toward the front. The coupling of the back panel and the semicircular ring panels, as well as the coupling of both sides of the horizontal support plate, are all achieved by slot-fit coupling without separate fastening members. Accordingly, an eco-friendly sound-absorbing decorative structure is provided that simultaneously achieves aesthetic curved three-dimensional form and excellent sound absorption performance without a separate acoustic opening, and is easy to assemble and disassemble.

Description

Technology Field

[0001] The present disclosure relates to a sound-absorbing decorative structure, and more specifically, to a sound-absorbing decorative structure comprising a back panel, a semicircular ring panel group, a horizontal support plate, and a slot-fit joint structure, capable of simultaneously forming a curved three-dimensional outer shape and a sound-absorbing passage for sound waves. Background Technology

[0003] Sound-absorbing materials are materials installed on walls or ceilings to reduce indoor noise and reverberation; generally, porous fibers, foamed resins, or perforated plates have been used. These sound-absorbing materials allow incident sound waves to enter through their internal micropores or perforations, and reduce noise by converting acoustic energy into thermal energy through friction and viscous loss.

[0004] Recently, there has been an increasing demand for decorative sound-absorbing panels that consider both sound absorption performance and the aesthetics of indoor spaces. For example, products are being proposed that combine wall decoration and sound absorption functions by processing eco-friendly compressed fiber materials, such as recycled polyethylene terephthalate (PET) felt, into flat or three-dimensional tile forms.

[0005] However, conventional decorative sound-absorbing panels often require the formation of numerous perforations or separate acoustic openings on the panel surface to ensure sound absorption performance, which leads to issues such as damage to the appearance of the decorative surface or limitations on design freedom. Furthermore, since their shapes are often limited to flat panels, there is a limitation in realizing three-dimensional aesthetics.

[0006] Meanwhile, when assembling multiple components to realize a three-dimensional sound-absorbing decorative element, conventional methods require separate fastening components such as adhesives, screws, or brackets, which complicates the assembly process. Furthermore, the use of these fastening components reduces the recyclability and eco-friendliness of the materials, and there are issues with the difficulty of disassembly and replacement.

[0007] Therefore, there is a need for an eco-friendly sound-absorbing decorative structure that can simultaneously achieve a three-dimensional curved exterior and excellent sound absorption performance without separate acoustic openings or fastening members, is easy to assemble and disassemble. The problem to be solved

[0009] The objective of the present disclosure is to provide a sound-absorbing decorative structure that can simultaneously achieve aesthetic three-dimensional form and excellent sound absorption performance without a separate acoustic opening by slot-fitting semicircular ring panels of different diameters to a back panel to form a curved three-dimensional shape and utilizing the fine gaps formed between the semicircular ring panels as sound absorption passages.

[0010] Furthermore, the objective of the present disclosure is to provide an environmentally friendly sound-absorbing decorative structure that is easy to assemble and disassemble by implementing the combination of the semicircular ring panel and the back panel, as well as the combination of both sides of the horizontal support plate traversing the interior of the curved outer shape, using slot-fit connections without separate fastening members. means of solving the problem

[0012] A sound-absorbing decorative structure according to one embodiment of the present disclosure may include a back panel having a rear surface and a plurality of coupling slots formed on one surface, a group of semicircular ring panels having both ends coupled to the one surface of the back panel to form a curved three-dimensional outer shape, and at least one horizontal support plate disposed inside the curved three-dimensional outer shape.

[0013] In one embodiment of the present disclosure, the semicircular ring panel group may include a plurality of semicircular ring panels of thickness T made of a sound-absorbing material, and the plurality of semicircular ring panels may be formed as flat plate members in the shape of semicircular arcs having different diameters, and both ends of the semicircular ring panels may be directly inserted into and coupled to the coupling slots of the back panel, respectively.

[0014] In one embodiment of the present disclosure, the at least one horizontal support plate has one side connected to the semicircular ring panel and the other side connected to the back panel, thereby forming a bridge structure between the semicircular ring panel and the back panel.

[0015] In one embodiment of the present disclosure, the group of semicircular ring panels may be stacked such that a fine gap is formed between the plurality of semicircular ring panels, and the fine gap may form a sound absorption passage for sound waves directed toward the front of the curved three-dimensional shape.

[0016] In one embodiment of the present disclosure, the connection between the back panel and the semicircular ring panel, the connection between the one side of the horizontal support plate and the semicircular ring panel, and the connection between the other side of the horizontal support plate and the back panel can all be achieved without a separate fastening member by a slot-fit connection.

[0017] In one embodiment of the present disclosure, the sound-absorbing material may be an eco-friendly sound-absorbing panel formed by compression molding at least one selected from the group consisting of recycled PET fibers, plant fibers, and natural felt, and may be composed of a single layer without a separate coating layer, laminate layer, or outer layer.

[0018] In one embodiment of the present disclosure, the thickness T can be set to 7 mm or more and 12 mm or less, the lamination pitch between two adjacent semicircular ring panels can be set to 1.5 T or more and the width of the micro gap can be set to 1 / 10 or more and 1 / 2 or less of the thickness T.

[0019] In one embodiment of the present disclosure, the plurality of semicircular ring panels may be stacked such that their diameter decreases from the center of the back panel toward the outside, thereby forming a curved outer shape that is hemispherical, semi-elliptical, or semi-cylindrical. In another embodiment, the plurality of semicircular ring panels may be arranged concentrically with respect to a common center and stacked along the thickness direction of the back panel.

[0020] In one embodiment of the present disclosure, the coupling slot into which the end of the semicircular ring panel is inserted among the plurality of coupling slots of the back panel may be arranged to form two parallel arc-shaped rows, and the back panel may not have a separate acoustic opening for sound absorption.

[0021] In one embodiment of the present disclosure, sound waves directed toward the front of the curved outer shape pass through the micro-gap and enter the internal space, and can be absorbed by the sound-absorbing material while being reflected multiple times by the inner surface of the semicircular ring panel, the surface of the horizontal support plate, and the one surface of the back panel.

[0022] In one embodiment of the present disclosure, the other side of the back panel may be provided with an installation portion for fixing the structure to a vertical wall, and the back panel may simultaneously perform a structural support function and a sound-absorbing back panel function. Effects of the invention

[0024] According to one embodiment of the present disclosure, by slot-fitting semicircular ring panels of different diameters to a back panel, the aesthetic form of a curved three-dimensional shape, such as a moon jar, and sound-absorbing function can be simultaneously realized in a single structure.

[0025] According to one embodiment of the present disclosure, by utilizing the fine gaps formed between semicircular ring panels as sound-absorbing passages, sound waves can be introduced into the interior space and effectively absorbed by multiple reflections without forming separate perforations or acoustic openings on the decorative surface. Accordingly, excellent sound absorption performance can be secured without compromising the appearance of the decorative surface.

[0026] According to one embodiment of the present disclosure, by implementing the connection of the semicircular ring panel and the back panel and the connection of both sides of the horizontal support plate using slot-fit connections without separate fastening members, assembly and disassembly are easy, and the recyclability and eco-friendliness of the material can be improved by excluding the use of adhesives or metal fasteners. Brief explanation of the drawing

[0028] FIG. 1 is an overall perspective view of a sound-absorbing decorative structure according to one embodiment of the present invention. FIG. 2 is a front view of a sound-absorbing decorative structure according to one embodiment of the present invention. FIG. 3 is a side cross-sectional view of a sound-absorbing decorative structure according to one embodiment of the present invention. FIG. 4 is a diagram showing the arrangement of coupling slots of a back panel according to one embodiment of the present invention. FIG. 5 is a drawing showing the individual structure of a semicircular ring panel according to one embodiment of the present invention. FIG. 6 is an enlarged view showing the coupling structure of a horizontal support plate according to one embodiment of the present invention. FIG. 7 is an operational diagram showing a sound wave absorption path according to one embodiment of the present invention. Specific details for implementing the invention

[0029] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0030] The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components in addition to the components mentioned.

[0031] Unless otherwise defined, all terms used in this specification may be used in a meaning commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. Identical components in the drawings are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0034] The meanings of the key terms used in this specification are as follows.

[0035] The ‘sound-absorbing decorative structure’ (1) may refer to a structure that performs both a sound-absorbing function to absorb sound waves and an aesthetic function to decorate an indoor space. The sound-absorbing decorative structure (1) can be installed on a wall or the like to reduce noise and reverberation while providing a three-dimensional aesthetic. In the present invention, the sound-absorbing decorative structure (1) may include a back panel (100), a semicircular ring panel group (200), and a horizontal support plate (300), and these components may be integrally joined by a slot-fit connection.

[0036] The ‘back panel’ (100) may refer to a flat member forming the back surface of a sound-absorbing decorative structure (1). The back panel (100) may function as a base member that supports the ends of the semicircular ring panel (210) and the horizontal support plate (300). In the present invention, the back panel (100) may have a plurality of coupling slots (110) formed on one side and may also function as a sound-absorbing back panel made of a sound-absorbing material that absorbs sound waves reaching from the internal space (230).

[0037] The 'joining slot' (110) may refer to an incision or groove formed on one side of the back panel (100) to accommodate the end of another member. The joining slot (110) can secure the member without a separate fastening member by restraining the inserted end in the thickness direction. In the present invention, the joining slot (110) may include a first arc-shaped slot row (111) and a second arc-shaped slot row (112) into which the end of the semicircular ring panel (210) is inserted, and a horizontal support plate joining slot (113) into which the end of the horizontal support plate (300) is inserted.

[0038] The 'semicircular ring panel group' (200) may refer to a set of multiple semicircular ring panels (210). The semicircular ring panel group (200) can form a curved three-dimensional shape protruding from the back panel (100) by stacking semicircular ring panels (210) of different diameters. In the present invention, the semicircular ring panel group (200) can realize a hemispherical or semi-elliptical shape, such as a moon jar.

[0039] The ‘semicircular ring panel’ (210) may refer to a flat plate member having a semicircular arc shape. The semicircular ring panel (210) can be coupled to the back panel (100) by inserting both ends (211, 212) into the coupling slot (110) of the back panel (100). In the present invention, a plurality of semicircular ring panels (210) have different diameters and can form a fine gap (220) between them by stacking them adjacent to each other.

[0040] The ‘micro gap’ (220) may refer to a gap formed between two adjacent semicircular ring panels (210). The micro gap (220) may function as a sound-absorbing passage through which sound waves directed toward the front of the curved outer shape enter the internal space (230). In the present invention, the width (g) of the micro gap (220) may be set in relation to the thickness (T) as a factor affecting sound absorption performance.

[0041] The ‘internal space’ (230) may refer to the space formed between the curved outer shape formed by the semicircular ring panel group (200) and the back panel (100). The internal space (230) may function as a space where sound waves introduced through the micro-gap (220) are reflected multiple times.

[0042] The 'horizontal support plate' (300) may refer to a flat plate member positioned to traverse the interior of the curved outer shape in a horizontal direction. The horizontal support plate (300) can reinforce structural rigidity by forming a bridge structure between the semicircular ring panel group (200) and the back panel (100) by connecting one side to the semicircular ring panel (210) and the other side to the back panel (100). In the present invention, the horizontal support plate (300) is made of a sound-absorbing material and can also function to absorb sound waves in the internal space (230).

[0043] The 'first coupling part' (310) and the 'second coupling part' (320) may each refer to a coupling structure formed at one end and the other end of the horizontal support plate (300) and coupled to a corresponding member. The first coupling part (310) may be slot-fit coupled to the semicircular ring panel (210), and the second coupling part (320) may be slot-fit coupled to the horizontal support plate coupling slot (113) of the back panel (100).

[0044] The 'insertion slot' (340) may refer to a groove structure formed in the area where the slot insertion connection is made. The insertion slot (340) may include a semicircular ring panel slot upper wall (340-1) and a semicircular ring panel slot lower wall (340-2), a back panel slot upper wall (340-3) and a back panel slot lower wall (340-4), and may prevent detachment after assembly by restraining the inserted end from above and below.

[0045] The ‘installation part’ (400) may be formed on the other side of the back panel (100) and may refer to a means for mounting the sound-absorbing decorative structure (1) on a vertical wall. The installation part (400) may be formed, for example, as a mounting hole in the shape of a keyhole, but is not limited thereto, and is intended for fixing to the wall surface and does not correspond to an acoustic opening for sound absorption.

[0046] "Slot-fit joint" may refer to a joining method in which the end of a member is inserted into a corresponding slot to secure it without separate fastening members. By eliminating the use of adhesives, screws, or brackets, a slot-fit joint can facilitate assembly and disassembly and improve the recyclability of materials.

[0047] "Sound-absorbing material" may refer to a material that absorbs and reduces the acoustic energy of incident sound waves. The sound-absorbing material may be, for example, an eco-friendly compressed fiber material formed by compression molding recycled PET fibers, plant fibers, or natural felt, but is not limited thereto.

[0049] FIG. 1 is an overall perspective view of a sound-absorbing decorative structure according to one embodiment of the present invention.

[0050] Referring to FIG. 1, the sound-absorbing decorative structure (1) may include a back panel (100) and a group of semicircular ring panels (200) that are attached to one side of the back panel (100) and protrude forward.

[0051] The back panel (100) may be formed in a flat shape to form the back surface of the sound-absorbing decorative structure (1). A plurality of coupling slots (110) for receiving the ends of the semicircular ring panel (210) may be formed on one side of the back panel (100).

[0052] The semicircular ring panel group (200) may include a plurality of semicircular ring panels (210) having different diameters. The plurality of semicircular ring panels (210) may be stacked adjacent to each other to form a hemispherical curved three-dimensional shape protruding from the back panel (100), and the shape may provide a sculptural beauty reminiscent of a moon jar. A fine gap (220) may be formed between adjacent semicircular ring panels (210).

[0053] In one embodiment of the present disclosure, the curved three-dimensional shape may be implemented in various shapes. For example, it may be hemispherical, semi-elliptical, or semi-cylindrical, and may have a circular, elliptical, or oblong outline when viewed from the front, but the present disclosure is not limited thereto.

[0054] In one embodiment of the present disclosure, a curved three-dimensional shape formed by combining a group of semicircular ring panels (200) with a back panel (100) can integrate sound absorption and decorative functions into a single structure. For example, the curved three-dimensional shape can be realized with various sculptural motifs such as a moon jar, a full moon, or a hemispherical object, but the present disclosure is not limited thereto.

[0056] FIG. 2 is a front view of a sound-absorbing decorative structure according to one embodiment of the present invention.

[0057] Referring to FIG. 2, when viewed from the front, it can be seen that a plurality of semicircular ring panels (210) of a semicircular ring panel group (200) are stacked and that fine gaps (220) are repeatedly formed between adjacent semicircular ring panels (210).

[0058] Each semicircular ring panel (210) may be a flat plate member having a thickness (T). Two adjacent semicircular ring panels (210) may be arranged at a spacing of a stacking pitch (P), and a fine gap (220) of width (g) may be formed between them.

[0059] In one embodiment of the present disclosure, the thickness (T) may be 7 mm or more and 12 mm or less, the stacking pitch (P) may be 1.5 T or less than or equal to the thickness (T), and the width (g) of the micro-gap (220) may be 1 / 10 or more and 1 / 2 or less of the thickness (T). However, the present disclosure is not limited thereto.

[0060] In one embodiment of the present disclosure, the relationship between the thickness (T), the stacking pitch (P), and the width (g) of the micro-gap (220) can be set so that sound absorption performance and structural rigidity are balanced. Within the above numerical range, the semicircular ring panel (210) can maintain its curved outer shape independently while allowing sound waves to enter through the micro-gap (220) and internal multiple reflections to occur smoothly, but the present disclosure is not limited thereto.

[0062] FIG. 3 is a side cross-sectional view of a sound-absorbing decorative structure according to one embodiment of the present invention.

[0063] Referring to FIG. 3, it can be seen that a group of semicircular ring panels (200) protrudes from the back panel (100) to form an internal space (230) between them, and a horizontal support plate (300) is arranged to cross the internal space (230) in a horizontal direction.

[0064] Both ends of the semicircular ring panel (210) can be directly inserted into the coupling slot (110) of the back panel (100) and coupled. The horizontal support plate (300) can form a bridge structure between the semicircular ring panel group (200) and the back panel (100) by having a first coupling part (310) provided on one side coupled to the semicircular ring panel (210) and a second coupling part (320) provided on the other side coupled to the back panel (100). The internal space (230) can function as a space where sound waves introduced through the micro-gap (220) are reflected multiple times.

[0065] In one embodiment of the present disclosure, one or more horizontal support plates (300) may be provided. For example, depending on the size of the curved outer shape, one, two, or three or more horizontal support plates (300) may be spaced apart vertically, but the present disclosure is not limited thereto.

[0066] In one embodiment of the present disclosure, the cross-link structure formed by the horizontal support plate (300) between the semicircular ring panel (210) and the back panel (100) can improve the shape stability of the curved outer shape. For example, the cross-link structure may be implemented as a single cross or a multi-stage cross depending on the size of the curved outer shape, but the present disclosure is not limited thereto.

[0068] FIG. 4 is a diagram showing the arrangement of coupling slots of a back panel according to one embodiment of the present invention.

[0069] Referring to FIG. 4, on one side of the back panel (100), a coupling slot (110) for receiving the end of a semicircular ring panel (210), a horizontal support plate coupling slot (113) for receiving the end of a horizontal support plate (300), and an installation part (400) for mounting the structure on a wall may be formed.

[0070] A coupling slot (110) that accommodates the end of a semicircular ring panel (210) may be arranged to form two parallel arc-shaped rows, namely a first arc-shaped slot row (111) and a second arc-shaped slot row (112), at positions corresponding to the diameters of each of the plurality of semicircular ring panels (210). The first arc-shaped slot row (111) and the second arc-shaped slot row (112) may be positioned at positions corresponding to both ends in the diameter direction of the curved outer shape. A horizontal support plate coupling slot (113) may be positioned in the central area between the first arc-shaped slot row (111) and the second arc-shaped slot row (112) to accommodate a second coupling portion (320) of a horizontal support plate (300). The installation portion (400) may be formed, for example, in the shape of a keyhole.

[0071] In one embodiment of the present disclosure, the coupling slot (110) may be formed as a straight cut portion that accommodates the end of the semicircular ring panel (210) in the thickness direction. The back panel (100) may not have a separate acoustic opening for sound absorption formed therein, except for the coupling slot (110), the horizontal support plate coupling slot (113), and the installation portion (400). However, the present disclosure is not limited thereto.

[0072] In one embodiment of the present disclosure, the coupling slots (110) are arranged in two parallel arc-shaped rows (111, 112), and no separate acoustic opening for sound absorption is formed in the back panel (100), so that sound waves cannot pass through the back panel (100) as is and can be reflected multiple times in the internal space (230) without damaging the appearance of the decorative surface. In addition, the back panel (100) can simultaneously perform a structural function of supporting the structure by accommodating both ends of the semicircular ring panel (210) and the other end of the horizontal support plate (300), and a sound-absorbing back panel function of absorbing sound waves as a sound-absorbing material.

[0074] FIG. 5 is a drawing showing the individual structure of a semicircular ring panel according to one embodiment of the present invention.

[0075] Referring to FIG. 5, the semicircular ring panel (210) is formed as a flat plate member in the shape of a semicircular arc, and a first end (211) and a second end (212) that are inserted into the back panel (100) may be provided at both ends.

[0076] The semicircular ring panel (210) has a thickness (T), and its arc shape may be defined by an inner radius (Rin) and an outer radius (Rout). The first end (211) and the second end (212) may be provided with an insertion portion that is inserted into a coupling slot (110), and the length (ts) of the insertion portion may define the coupling depth. A plurality of semicircular ring panels (210) may have different diameters, that is, different inner radii (Rin) and outer radii (Rout).

[0077] In one embodiment of the present disclosure, the stacking method of a plurality of semicircular ring panels (210) can be implemented in various ways. For example, a plurality of semicircular ring panels (210) may be stacked spaced apart from each other parallel along the thickness direction of the back panel (100) as shown in FIG. 1 and FIG. 2. In another example, a plurality of semicircular ring panels (210) may be stacked concentrically having different radii with respect to a common center (O) as shown in the example of FIG. 5, but the present disclosure is not limited thereto.

[0078] In one embodiment of the present disclosure, whether by parallel stacking or concentric stacking, substantially the same sound absorption action can be provided in that the micro gap (220) formed between adjacent semicircular ring panels (210) functions as a sound absorption passage. In addition, the central angle of the arc of the semicircular ring panel (210) is not limited to 180 degrees, but can be selected in a range of, for example, 120 degrees or more and 240 degrees or less, but the present disclosure is not limited thereto.

[0080] FIG. 6 is an enlarged view showing the coupling structure of a horizontal support plate according to one embodiment of the present invention.

[0081] Referring to FIG. 6, a slot-fit coupling structure is illustrated in which the first coupling part (310) of the horizontal support plate (300) is coupled to the semicircular ring panel (210) and the second coupling part (320) is coupled to the back panel (100).

[0082] A fitting slot (340) including a semicircular ring panel slot upper wall (340-1) and a semicircular ring panel slot lower wall (340-2) may be formed in the area where the first coupling part (310) is inserted. A fitting slot (340) including a back panel slot upper wall (340-3) and a back panel slot lower wall (340-4) may be formed in the area where the second coupling part (320) is inserted. The first coupling part (310) and the second coupling part (320) are each inserted into the corresponding fitting slot (340) and constrained from above and below, so that they may not detach in the reverse direction of the insertion direction after assembly.

[0083] In one embodiment of the present disclosure, the connection between the fitting slot (340) and the coupling part may be implemented in various cross-sectional shapes. For example, it may be a stepped connection, a hook connection, or an interference fit connection, but the present disclosure is not limited thereto.

[0084] In one embodiment of the present disclosure, a structure in which a first coupling part (310) and a second coupling part (320) are inserted into a corresponding fitting slot (340) and constrained from above and below can achieve a strong cross-linked connection without a separate fastening member. Accordingly, the use of adhesives or metal fasteners is eliminated, making assembly and disassembly easy and allowing for easy individual replacement of the members.

[0086] FIG. 7 is an operational diagram showing a sound wave absorption path according to one embodiment of the present invention.

[0087] Referring to FIG. 7, the process is illustrated in which a sound wave (A) incident toward the front of a curved outer shape passes through a micro-gap (220) and enters an internal space (230), and is absorbed while being reflected along multiple reflection paths (B) in the internal space (230).

[0088] Incident sound waves (A) can pass through the micro-gap (220) and enter the internal space (230). The sound waves entering the internal space (230) can be repeatedly reflected along multiple reflection paths (B) on the inner surface of the semicircular ring panel (210), the surface of the horizontal support plate (300), and one surface of the back panel (100). During repeated reflections, the sound waves can be gradually absorbed by each member made of sound-absorbing material.

[0089] In one embodiment of the present disclosure, the absorption efficiency of sound waves passing through the micro-gap (220) can be controlled by the volume of the internal space (230), the stacking density of the semicircular ring panel (210), and the density of the sound-absorbing material. However, the present disclosure is not limited thereto.

[0090] In one embodiment of the present disclosure, the action of sound waves (A) passing through a micro-gap (220) and entering an internal space (230) and being absorbed along a multiple reflection path (B) can achieve excellent sound absorption performance without forming a separate acoustic opening in the decorative surface. The absorption of sound waves may be achieved by viscosity and friction loss within the fiber compression material, path extension due to multiple reflections, or diffraction and interference in the micro-gap (220), but the present disclosure is not limited thereto.

[0091] Below, variations of each of the aforementioned components and their limitations are further described.

[0092] In one embodiment of the present disclosure, the connection between the back panel (100) and the semicircular ring panel (210), the connection between one side of the horizontal support plate (300) and the semicircular ring panel (210), and the connection between the other side of the horizontal support plate (300) and the back panel (100) may all be formed by a slot-fit connection without a separate fastening member. For example, the slot-fit connection may be a method of simply inserting the end into a slot, a method of forming a step to create a locking connection, a method of forming a hook to create a snap connection, a method of frictional connection by interference fit, or a combination thereof, but the present disclosure is not limited thereto.

[0093] According to one embodiment of the present disclosure, fastening members such as adhesives, screws, or brackets are excluded by the attachmentless slot-fit coupling, making assembly and disassembly easy, individual replacement of damaged semicircular ring panels (210) simple, and separation and disposal and recycling after use can be easily performed as the panels are made of a single material.

[0094] In one embodiment of the present disclosure, the sound-absorbing material may be implemented with various eco-friendly materials. For example, it may be recycled polyethylene terephthalate (PET) felt, plant fiber compressed material such as hemp, jute, coconut fiber, natural felt such as wool, mixed compressed material of recycled fibers and natural fibers, or biodegradable resin fiber compressed material, but the present disclosure is not limited thereto.

[0095] In one embodiment of the present disclosure, the sound-absorbing material may be composed of a single layer without a separate coating layer, laminate layer, or outer layer. By configuring the single layer, the manufacturing process is simplified, and separation of dissimilar materials may be unnecessary when recycling after use. However, in other embodiments, flame-retardant, water-repellent, or antibacterial treatments may be added to the surface of the sound-absorbing material, but the present disclosure is not limited thereto.

[0096] In one embodiment of the present disclosure, the basis weight or density of the sound-absorbing material may be set considering sound absorption performance and self-standing rigidity. For example, the higher the density of the fiber compression material, the better the sound absorption performance and self-standing rigidity in the mid-to-high frequency bands, but the present disclosure is not limited to a specific density.

[0097] In one embodiment of the present disclosure, the thickness (T) of the semicircular ring panel (210) can be determined within a range that avoids excessive weight while ensuring rigidity so that the fiber compression material can independently maintain a curved outer shape. The lamination pitch (P) can be determined within a range that simultaneously satisfies the formation of micro-gaps (220) and lamination density, and the width (g) of the micro-gaps (220) can be determined within a range that simultaneously induces the inflow of sound waves and internal multiple reflections.

[0098] In one embodiment of the present disclosure, if the thickness (T) is excessively small, the self-supporting rigidity is insufficient and the curved outer shape may be deformed, and if it is excessively large, the weight increases and the precision of forming the micro-gap (220) may decrease. Likewise, if the width (g) of the micro-gap (220) is excessively small, the inflow of sound waves is restricted, and if it is excessively large, internal multiple reflections may not occur sufficiently, and the sound absorption efficiency may decrease.

[0099] In one embodiment of the present disclosure, the suitability of the thickness (T), stacking pitch (P), and width (g) of the micro-gap (220) can be confirmed by cross-sectional measurement or by standard sound absorption rate measurement such as the reverberation chamber method or the impedance tube method.

[0100] In one embodiment of the present disclosure, the thickness (T) may be 7 mm or more and 12 mm or less, may be set to a narrower range of 8 mm or more and 11 mm or less, or 9 mm or more and 10 mm or less, and in some cases may be set to a wider range of 6 mm or more and 14 mm or less. The stacking pitch (P) and the width (g) of the micro-gap (220) may also be set to various corresponding ranges, but the present disclosure is not limited thereto.

[0101] In one embodiment of the present disclosure, the curved outer shape formed by the semicircular ring panel group (200) can be implemented in various shapes. For example, it may be a hemispherical, semi-elliptical, semi-cylindrical, parabolic, or a free-form shape combining these, and may have a circular, elliptical, or oblong outline when viewed from the front, but the present disclosure is not limited thereto.

[0102] In one embodiment of the present disclosure, the semicircular ring panel (210) may have a semicircular arc shape, but the central angle of the arc is not limited to 180 degrees and may be a shape greater or smaller than 180 degrees. For example, the central angle of the arc may be selected in the range of 120 degrees or more and 240 degrees or less, and the cross-section of the semicircular ring panel (210) may be a flat plate shape with uniform thickness as well as a shape in which the thickness changes in the width direction, but the present disclosure is not limited thereto.

[0103] In one embodiment of the present disclosure, the stacking method of a plurality of semicircular ring panels (210) may be a parallel stacking method in which they are spaced apart from each other parallelly along the thickness direction of the back panel (100), a concentric stacking method based on a common center (O), or a combination thereof, but the present disclosure is not limited thereto.

[0104] In one embodiment of the present disclosure, the horizontal support plate (300) may be implemented in various forms. For example, it may be a flat plate, a grid plate, a porous plate, or a corrugated plate, and the number may be one or more than two, and may be spaced apart in the vertical direction within the curved outer shape, but the present disclosure is not limited thereto.

[0105] In one embodiment of the present disclosure, the horizontal support plate (300) may be arranged to traverse the curved outer shape in a horizontal direction, but in other embodiments, it may be replaced by or used in combination with a support plate arranged in a vertical or inclined direction. In this case as well, a bridge structure between the semicircular ring panel group (200) and the back panel (100) may be formed, but the present disclosure is not limited thereto.

[0106] In one embodiment of the present disclosure, the horizontal support plate (300) is made of a sound-absorbing material and may also function to absorb sound waves in the internal space (230). In another embodiment, the horizontal support plate (300) may include a reinforcing material having a higher rigidity than the sound-absorbing material for rigidity reinforcement, or may be composed of a composite member of the sound-absorbing material and the reinforcing material, but the present disclosure is not limited thereto.

[0107] In one embodiment of the present disclosure, the coupling slot (110) that accommodates the end of the semicircular ring panel (210) may be arranged to form two parallel arc-shaped rows (111, 112). In another embodiment, the number of arc-shaped rows of the coupling slot (110) may increase or decrease depending on the shape of the curved outer surface, and the number of slots formed in each arc-shaped row may be set in correspondence with the number of semicircular ring panels (210), but the present disclosure is not limited thereto.

[0108] In one embodiment of the present disclosure, the back panel (100) may not have a separate acoustic opening for sound absorption formed in addition to a straight cut portion into which the end of a semicircular ring panel (210) is inserted, a horizontal support plate coupling slot (113) into which a horizontal support plate (300) is inserted, and a mounting portion (400). The mounting portion (400) is for wall mounting and does not correspond to an acoustic opening for sound absorption, and accordingly, sound waves cannot pass through the back panel (100) and are reflected multiple times in the internal space (230), thereby improving sound absorption efficiency.

[0109] In one embodiment of the present disclosure, the mounting portion (400) may be implemented with various mounting means. For example, it may be a mounting hole in the shape of a keyhole, a hook or loop, a locking member in the shape of a French cleat, or a member including a magnet, but the present disclosure is not limited thereto.

[0110] According to one embodiment of the present disclosure, the back panel (100) can simultaneously perform a structural function of supporting a structure by receiving both ends of the semicircular ring panel (210) and the other end of the horizontal support plate (300), and a sound-absorbing back panel function of absorbing sound waves reaching from the internal space (230) as a sound-absorbing material. Accordingly, the sound absorption, support, and mounting functions can be integrated into a single component without adding a separate back panel or sound-absorbing lining.

[0111] In one embodiment of the present disclosure, sound waves (A) directed toward the front of the curved outer shape pass through a micro-gap (220) and enter the internal space (230), and can be gradually absorbed by a sound-absorbing material while being repeatedly reflected along a multiple reflection path (B) on the inner surface of the semicircular ring panel (210), the surface of the horizontal support plate (300), and one surface of the back panel (100). Due to this multiple reflection sound absorption action, an excellent sound absorption rate in the mid-to-high frequency band can be achieved without forming separate perforations on the decorative surface.

[0112] In one embodiment of the present disclosure, a color, pattern, print, or texture may be added to the surface of the semicircular ring panel (210) or the back panel (100) to provide decorative qualities. For example, a plurality of semicircular ring panels (210) may be composed of different colors according to their diameters to form a gradient effect, but the present disclosure is not limited thereto.

[0113] In one embodiment of the present disclosure, the sound-absorbing decorative structure (1) may be implemented in various sizes. For example, it may be manufactured in dimensions of 1m × 1m, 500mm × 500mm, or 250mm × 250mm, and a plurality of sound-absorbing decorative structures (1) may be arranged on a wall surface to form a modular sound-absorbing wall, but the present disclosure is not limited thereto.

[0114] In one embodiment of the present disclosure, the semicircular ring panel (210), horizontal support plate (300), and back panel (100) may be manufactured by cutting, press forming, or cutting a sound-absorbing material sheet, and the coupling slot (110), insertion slot (340), and installation part (400) may be formed by punching or cutting, but the present disclosure is not limited thereto.

[0115] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

[0116] [Explanation of the symbol]

[0117] 1: Sound-absorbing decorative structure

[0118] 100: Back panel

[0119] 110: Connecting slot

[0120] 111: Type 1 slot column

[0121] 112: Type 2 slot column

[0122] 113: Horizontal support plate connection slot

[0123] 200: Semicircular ring panel group

[0124] 210: Semicircular ring panel

[0125] 211: First section

[0126] 212: Part 2

[0127] 220: Micro-gap

[0128] 230: Interior space

[0129] 300: Horizontal support plate

[0130] 310: First joint

[0131] 320: Second joint

[0132] 340: Insert slot

[0133] 340-1: Semicircular ring panel slot top wall

[0134] 340-2: Semicircular ring panel slot bottom wall

[0135] 340-3: Back panel slot top wall

[0136] 340-4: Back panel slot bottom wall

[0137] 400: Installation part

[0138] T: Thickness

[0139] P: Lamination pitch

[0140] g: Width of the micro-gap

[0141] Rin: inner radius

[0142] Rout: Outer radius

[0143] L: Arc length

[0144] ts: Insertion length

[0145] O: Common center

[0146] A: Incident sound wave

[0147] B: Internal reflection path

Claims

Claim 1 As a sound-absorbing decorative structure, a back panel forming the back surface of the sound-absorbing decorative structure and having a plurality of coupling slots formed on one surface; a group of semicircular ring panels having both ends joined to the one surface of the back panel to form a curved three-dimensional outer shape; A sound-absorbing decorative structure comprising at least one horizontal support plate disposed inside the curved three-dimensional outer shape, wherein the semicircular ring panel group comprises a plurality of semicircular ring panels having a thickness T made of a sound-absorbing material, wherein the plurality of semicircular ring panels are formed as flat plate members having a semicircular arc shape having different diameters, and the two ends of the semicircular ring panels are each directly inserted into and coupled to the coupling slots of the back panel; wherein one side of the at least one horizontal support plate is coupled to the semicircular ring panel and the other side is coupled to the back panel, thereby forming a bridge structure between the semicircular ring panel and the back panel; wherein the semicircular ring panel group is stacked such that a fine gap is formed between the plurality of semicircular ring panels, and the fine gap forms a sound-absorbing passage for sound waves directed toward the front of the curved three-dimensional outer shape; and wherein the coupling of the back panel and the semicircular ring panel, the coupling of the one side of the horizontal support plate and the semicircular ring panel, and the coupling of the other side of the horizontal support plate and the back panel are all formed by slot-fit coupling without a separate fastening member. Claim 2 A sound-absorbing decorative structure according to claim 1, wherein the sound-absorbing material is an eco-friendly sound-absorbing panel formed by compression molding at least one selected from the group consisting of recycled polyethylene terephthalate (PET) fibers, plant fibers, and natural felt, and the eco-friendly sound-absorbing panel is composed of a single layer of thickness T and does not have a separate coating layer, laminate layer, or outer layer. Claim 3 A sound-absorbing decorative structure according to claim 1, characterized in that the thickness T is set in a range of 7 mm or more and 12 mm or less, the lamination pitch between two adjacent semicircular ring panels is set in a range of the thickness T or more and 1.5 T or less, and the width of the micro-gap is set in a range of 1 / 10 or more and 1 / 2 or less of the thickness T. Claim 4 A sound-absorbing decorative structure according to claim 1, wherein the plurality of semicircular ring panels are stacked such that their diameter decreases as they move outward from the center of one surface of the back panel, and the group of semicircular ring panels forms a curved outer shape protruding from the back panel, wherein the curved outer shape has a shape selected from the group consisting of a hemispherical shape, a semi-elliptical shape, and a semi-cylindrical shape. Claim 5 A sound-absorbing decorative structure according to claim 1, wherein at least one horizontal support plate is a flat plate member made of the sound-absorbing material and is arranged to cross the curved outer shape in a horizontal direction, wherein a first coupling part is provided at one end of the horizontal support plate to be coupled with the inner surface of the semicircular ring panel and a second coupling part is provided at the other end of the horizontal support plate to be coupled with the one surface of the back panel, and wherein each of the first coupling part and the second coupling part is coupled by a slot-fit coupling inserted into a corresponding slot formed in the semicircular ring panel and the back panel. Claim 6 A sound-absorbing decorative structure according to claim 1, wherein the coupling slot into which the end of the semicircular ring panel is inserted among the plurality of coupling slots of the back panel is arranged to form two parallel arc-shaped rows at positions corresponding to the diameters of the plurality of semicircular ring panels, and the two arc-shaped rows are positioned at positions corresponding to both ends in the diameter direction of the curved outer shape, and the coupling slot is a straight cut portion that accommodates the end of the semicircular ring panel in the thickness direction, and the back panel is characterized by not having a separate acoustic opening for sound absorption. Claim 7 A sound-absorbing decorative structure according to claim 1, characterized in that sound waves directed toward the front of the curved outer shape pass through the micro-gap and enter the internal space of the curved outer shape, and the sound waves entered into the internal space of the curved outer shape are absorbed by the sound-absorbing material while undergoing multiple reflections on the inner surface of the semicircular ring panel, the surface of the at least one horizontal support plate, and the surface of the back panel. Claim 8 A sound-absorbing decorative structure according to claim 1, wherein the other side of the back panel, that is, the side opposite to the one side to which the group of semicircular ring panels is joined, is provided with an installation part for fixing the structure to a vertical wall, and the back panel simultaneously performs a structural function of supporting the structure by receiving both ends of the semicircular ring panels and the other end of the horizontal support plate, and a sound-absorbing back panel function of absorbing sound waves reaching from the inside of the curved outer shape as the sound-absorbing material. Claim 9 A sound-absorbing decorative structure according to claim 1, wherein the plurality of semicircular ring panels are arranged concentrically with different radii based on a common center and are sequentially stacked along the thickness direction of the back panel to form the curved three-dimensional outer shape.

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