AU738186B3

AU738186B3 - Sound absorbing panel

Info

Publication number: AU738186B3
Application number: AU10028/01A
Authority: AU
Inventors: Wang Chao Hsiang
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-04
Filing date: 2001-01-04
Publication date: 2001-09-13
Anticipated expiration: 2007-01-04

Description

P/00/012 Regulation 3.2

AUSTRALIA

Patents Act 1990

ORIGINAL

COMPLETE SPECIFICATION PETTY PATENT Invention Title: SOUND ABSORBING PANEL The following statement is a full description of this invention, including the best method of performing it known to me: 1 W:\ConnieMDAVIDSOUND ABSORBING PETTY PATENT (2.1.01).doc SOUND ABSORBING PANEL FIELD OF THE INVENTION The present invention relates to a sound absorbing panel with sound absorbing barrels. The panel is formed with a plurality of adjacent tapered holes. The wave of noise is guided into the sound absorbing barrels in the frame through the small tapered holes on the panel, and thus remained therein without being dispersed.

Thus, the noise is reduced. The sound absorbing panel can be conveniently and easily assembled to have a larger area with a lower cost.

BACKGROUND OF THE INVENTION In the prior art, the sound absorbing structure is formed by a plurality of sound removing strips which are alternatively arranged longitudinally and transversally. The surface of the strip is formed with many aluminum holes for reflecting sound. Two sides of the strip are covered by cloth with dense fiber holes thereon. Then, surface layers with shielding holes enclose the strip. However, a sound absorbing chamber formed by this prior art design has a sound removing effect on the material itself, but has no the function of guiding the sound wave so that the sound removing effect is low. Moreover, it is difficult to be formed as a sound absorbing panel of a large area.

SUMMARY OF THE INVENTION According to a first aspect of the present invention there is provided a sound absorbing panel including a frame, a panel, and a plurality of large and small sound absorbing barrels; wherein the frame is rectangular frame; the frame having a-bottom plate; and four lateral plates are formed at the periphery of the bottom plate; the panel is a rectangular plate having a shape suitable to the frame; many small tapered holes are arranged in the panel; in the tapered hole, the side with -a-large-opening facing outwards-and-the s-ide having a-small opening within the panel; and the sound absorbing barrels have smooth cambered shapes without any tip portions or are a straight round shape; a top end of the barrel being chamfered and a bottom thereof being protruded inwards as a smooth protrusion; wherein by arranging the plurality of large and small sound absorbing barrels in the frame; and then a lid is covered thereon so as to be formed with a sound absorbing panel; the tapered holes being aligned with one or more sound absorbing panels whereby if sound is guided in the tapered holes, it will be retained within the sound absorbing barrels and then dispersed.

Preferably, the plurality of large and small sound absorbing barrels are formed with unique sizes, respectively.

In a further preferred form of the invention the sound absorbing panel has the frame integrally formed with the panel or the bottom plate.

The various objects and advantages of the present invention will be more readily understood from the following detailed description when reading in conjunction with the appended drawing.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of the frame in the present invention.

Fig IA is a cross section view along line A-A of Fig. 1.

Fig. IB is a cross section view along line B-B of Fig. 1.

Fig. 2A, 2B, 2C and 2D are cross sectional perspective views of the sound absorbing barrel in the present invention.

Fig. 3 is a perspective view of the panel in the present invention.

Fig. 3A is a cross section view of the panel in the present invention.

Fig 3B is a partial enlarged view of part B in Fig. 3A.

Fig. 4 is a perspective view of the sound absorbing panel in the present invention.

Fig. 5 is a perspective view of the sound absorbing panel in the present invention.

Fig. 6 is an exploded perspective view in the present invention.

Fig. 7A is a cross sectional view of line A-A of Fig. 6 in the present invention.

Fig. 7B is a cross sectional view of line B-B of Fig. 6 in the present invention.

Fig. 7C is a partial enlarged view of the part C in Fig. 7A.

Fig. 8 is a schematic view of the embodiment in the present invention.

Fig. 9 is an exploded perspective view of another embodiment in the present invention.

Fig. 9A is a partial enlarged view of part A of Fig. 9 in the present invention.

Fig. 10 is a perspective view showing the sound absorbing barrel in another embodiment of the present invention.

Fig. 11 is a perspective view showing the sound absorbing panel in another embodiment of the present invention.

Fig 12 is a schematic view showing another embodiment of the present invention.

Fig. 13 is a schematic view showing another embodiment in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED

EMBODIMENTS

With reference to Figs. 4, 5, 6, 7A, 7B and 7C the sound absorbing panel of the present invention is illustrated. The sound absorbing panel 100 is formed by a frame 1, a panel 3 and a plurality of large and small sound absorbing barrels 2.

The frame 1 (referring to Fig. 1, IA and 1B) is a rectangular frame. The periphery of bottom plate of the frame is formed by lateral plates connected as a rectangular frame. The outer edge of each lateral plate is formed with a groove 11. A plurality of concave seats 12 are installed at the interior of the bottom plate.

The panel 3 (see Fig. 3, 3A and 3B) is a rectangular plate for matching to the frame 1. Many adjacent small tapered holes 31 are formed thereon. The small tapered holes 31 have respective tilt portions 32 at the surface of the panel 3.

The plurality of larger and smaller sound absorbing barrels 2 (see Fig. 2A, 2B, 2C and 2D) have round taper shapes (or any camber shape without any tip portions, or straight barrel shapes).

The height thereof is suitable for the height of the lateral plates of the frame 1. The diameter of the bottom thereof is suitable for the concave seats 12 at the bottom plate of the frame 1, and the inner edge at the top thereof has a tilt portion 21. The bottom thereof is formed with a smooth convex portion 22.

By aforesaid structure, a plurality of large and small sound absorbing panels 2 are arranged in the frame and then is covered by the panel 3 so as to be formed as an sound absorbing panel 100 so that the wave of noise is guided into the sound absorbing barrels 2 in the frame I through the small tapered holes 31 on the panel 3, and thus remained therein circularly without being dispersed and therefore, the noise is reduced.

As shown in Fig. 8, a plurality of the sound absorbing panels can be assembled by a grid structure 4 from the grooves 11 at the outer edges of the frame I so as to be formed as a larger sound absorbing panel 100 for absorbing sound more effectively.

Furthermore, as the unit of a sound absorbing panel 100 has a larger area, it can not be shaped by a single module. Therefore, the present invention provides a simple way for assembly the sound absorbing panel 100, which is convenient, and practical, and thus the cost can be decreased. The frame I and panel 3 can be machined individually. Moreover, the frame 1 is formed by lateral plates, and the plurality of large and small sound absorbing barrels 2 are formed by small molds so as to be mass-produced.

Then, the sound absorbing barrels can be arranged in the frame I spaced in an equal distance. Then, they are welded by high frequency welding. Then the panel 3 is covered and is welded by high frequency welding. Therefore, a sound absorbing panel 100 with a large area is achieved. Therefore, it can be manufactured easily and conveniently without any extra devices.

With reference to Fig. 9 and 9A, another embodiment of the present invention is illustrated. In the embodiment, a sound absorbing barrel set 25, further referring to Figs. 10 and 1, is formed by a plurality of sound absorbing barrel having different diameters. Then a frame 1 with a predetermined size and the panel 3 are formed as an assembled frame. Thereby, the sound absorbing barrel sets 25 can be placed in the bottom plate 15 in the frame 1 and thus, the assembly work is complete.

Therefore, as shown in Fig. 12, by the steel frame in the ceiling, the sound absorbing panels can be assembled therein. As shown in Fig. 13, by installing a preset retaining frame, the sound absorbing panels can be assembled one by one (such as sound absorbing walls at two sides of a load) to achieve a desired effect.

Furthermore, the shape of the sound absorbing barrels may be other shapes, such as smooth cambered shape, other than the round shape shown in the specification.

Although the present invention has been described with reference to the preferred embodiments, it will be understood that the invention is not limited to the details described thereof.

Various substitutions and modifications have been suggested in the foregoing description, and others will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.

Claims

1. A sound absorbing panel including a frame, a panel, and a plurality of large and small sound absorbing barrels; wherein the frame is rectangular frame; the frame having a bottom plate; and four lateral plates are formed at the periphery of the bottom plate; the panel is a rectangular plate having a shape suitable to the frame; many small tapered holes are arranged in the panel; in the tapered hole, the side with a large opening facing outwards and the side having a small opening within the panel; and the sound absorbing barrels have smooth cambered shapes without any tip portions or are a straight round shape; a top end of the barrel being chamfered and a bottom thereof being protruded inwards as a smooth protrusion; wherein by arranging the plurality of large and small sound absorbing barrels in the frame; and then a lid is covered thereon so as to be formed with a sound absorbing panel; the tapered holes being aligned with one or more sound absorbing panels whereby if sound is guided in the tapered holes, it will be retained within the sound absorbing barrels and then dispersed.

2. The sound absorbing panel as claimed in claim 1, wherein the plurality of large and small sound absorbing barrels are formed with unique sizes, respectively.

3. The sound absorbing panel as claimed in claim 1 or claim 2, wherein the frame is integrally formed with the panel or the bottom plate. DATED: 19 July 2001 PHILLIPS ORMONDE FITZPATRICK Attorneys for: WANG CHAO HSIANG