TW200920902A - A sound absorptive board with geometric cavities - Google Patents

A sound absorptive board with geometric cavities Download PDF

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Publication number
TW200920902A
TW200920902A TW96141941A TW96141941A TW200920902A TW 200920902 A TW200920902 A TW 200920902A TW 96141941 A TW96141941 A TW 96141941A TW 96141941 A TW96141941 A TW 96141941A TW 200920902 A TW200920902 A TW 200920902A
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Taiwan
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sound
fine
geometric
sound waves
plate body
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TW96141941A
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Chinese (zh)
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TWI341893B (en
Inventor
Ching-An Chen
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Ckm Building Material Corp
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  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The present invention relates to a sound absorptive board with geometric cavities, which essentially consists of a metallic board fitted on the lower of the floor. The metallic board has a top appearance side comprising multiple tiny curved sections, and has multiple tiny geometric cavities on a bottom thereof, which are in the shape of a three-dimensional cone, and in communication with the top surface side. Therefore, sound waves will be reflected and refracted, and collide and interfere with each other to weaken when they hit the conical surfaces of the bottom tiny geometric cavities and the top surface side. At the same time, relatively small proportions of the sound waves will penetrate the metallic board, and they will be interfered with each other to further consume the air kinetics. The air between the metallic board and the floor will increase the loss of friction for the kinetics of sound waves to achieve the best efficiency of sound absorption.

Description

200920902 九、發明說明: 【發明所屬之技術領域】 本發明係有關於一種幾何微孔吸音板,尤其是指一種 一體成形而組裝快速,且凹設有諸多相連通的微細多曲面 外觀面與微細幾何孔槽,造成音波穿透損失,使其吸音效 果更佳之幾何微孔吸音板。 【先前技術】 按,由於科技文明之發達,使得生活中充滿了各種噪 音,諸如車輛之引擎聲、喇9Y聲、飛機或冷氣壓縮機等等, 過大之噪音往往會嚴重影響情緒、破壞生活品質,尤其是 居住在高架道路兩旁之居民,呼嘯而過之汽車噪音,不論 是白天或夜晚都相當惱人,其他還有大樓地下室之發電機 室、機房、工廠或KTV等場所,亦是大部分噪音之產生源, 所以要追求高品質之生活環境,要提供一個舒適安靜之生 活環境,首先必須注重此類場所之噪音防治的必要性,而 在噪音之防治方式中,傳統上之主要使用對象大多是使用 纖維性吸音材質,這是因為纖維性吸音材質為可彈性振動 之柔性材料,在膜振動理論和毛細管吸音理論之共同作用 之下,膜材料將吸收音波而產生共振,且膜材料之每一個 毛細管都是入射音波之一個分支而並聯產生音阻抗,具有 極為良好之吸音效果,另外,剛性材料之吸音板也是一種 使用極為廣泛之設備。 上述之吸音板,請參照第四圖所示,該吸音板係將現 有之金屬板(3)裝設於天花板之輕鋼架(4),該金屬板(3) 係藉其側端緣(31)置設於天花板之輕鋼架(4)側邊之抵靠 200920902 凸緣(41)上方,該金屬 在金屬板(3)之内層加_板—(3目)上—有數多穿孔⑽,並 失:然而’上述之吸音板在實際使用的時候會有下列之缺 層又需加裝吸音薄層,始能達到較 言人力二:='r業而言較麻煩,且相對而 板上開設有數多穿孔,以讓音波 到吸立^ 層加裝之吸音薄層予以吸音,來達 效^但因為還是有很多音波被金屬板直接反射 【發明内容】其吸音效果並不是报好。 因此本發明人餘上述之吸音板需加裝吸音薄層, =業麻_成本較高,且音輯是會被金屬板直接反 ^回至内’吸音絲財好,妓本著求進步讀神及理 办、’猎助多年所累積的專業知識、技術、經驗的輔佐下, ^致力於改良與開發,因而發明出—種—體成形而組裝 、、乂且於頂面及底面分別凹設有諸多相連通的微細多曲 面外觀面與微細幾何孔槽,造成音波穿透損失,使其吸音 效果更佳之幾何微孔吸音板。 八曰 本發明之幾何微孔吸音板,其主要係具有一金屬製成 之板體,板體之頂面开》成有微細多曲面外觀面,而板體之 底面對應於板體頂面之微細多曲面外觀面而凹設有立體 錐形狀之微細幾何孔槽,導致於音波在穿透微細幾何孔槽 200920902 與微細多曲面外觀面時產生衰減 【實施方式】 ” 為令本發明所運用之技術内容、 功效有更完整且清楚的揭露,兹於發明目的及其達成之 併參閱所揭之圖式及圖號:餘;下詳細說明之,並請一 蜀无,請爹照第 於一金屬製成之板體(1)頂面形月幾何微孔吸音板係 01),並於板體⑴之底面對應 微細多曲面外觀面 面外觀面⑴)而凹設有數多立體m頂面之微細多曲 (12),使得板體⑴底面之微 =之微細幾何孔槽 面之微細多曲面外觀面⑴)^連H槽⑽與板體⑴頂 之音波碰到微細幾何孔槽(12)之錐/ =2人方傳遞而來 生反射’並藉由微細幾何孔槽⑽ == 波相互碰撞干擾而產生衰減。 仰反乂錯便曰 實施組裝時,請參照第二圖以及第三圖所示,可先將 數板體(1)分別裝設於樓板層(2)之下方,由於板體(1)之 底面凹設成形有微細幾何孔槽(12),令在室内產生之音波 碰到微細幾何孔槽(12)之錐面,而在個別錐面上產生反 射,並藉由微細幾何孔槽(12)錐面之相互交錯,使造成反 射的音波相互碰撞干擾而發生衰減,並由於板體(1)之頂 面亦成形為微細多曲面外觀面(11),令穿透微細幾何孔槽 (12)與微細多曲面外觀面(11)之音波,藉由在樓板層(2) 與該微細多曲面外觀面(11)間的反射碰撞,使音波更加衰 減,同時,即使有部份音波將穿透微細幾何孔槽(12)與微 細多曲面外觀面(11)傳回室内空間,卻由於微細幾何孔槽 (12 )與微細多曲面外觀面(11)相當微細,且若把微細幾何 200920902 孔槽(12)中之空氣看成由大量厚度極薄之同軸柱層形成 的,每層中沿軸向之音波運動受到慣性以及正比於軸向速 度在徑向之梯度的黏滯阻力所限制,使得音波入射於板體 (1)並通過微細幾何孔槽(12)時,微細幾何孔槽(12)内的 空氣對應於音波的周波數而開始振動,而板體(1)與樓板 層(2)間開闊空間的空氣如彈簧般反覆的進行壓縮、膨脹 運動’與微細幾何孔槽(12)之内壁摩擦而損失能量,並藉 由微細幾何孔槽(12)之錐面,造成反射的音波相互碰撞干 擾,所以會造成音波之穿透損失而產生衰減、消失,藉此 達到吸音之功效。 於實施使用時’請參照第二圖以及第三圖所示,由於 板體(1)形成有諸多微細幾何孔槽G2),所以四面八方傳 遞而來之音波很容易碰到微細幾何孔槽(12)之錐面,並在 個別錐面上產生反射,且藉由微細多曲面外觀面(11)與微 細^何孔槽(12)錐面之相互交錯,使造成反射的音波相互 碰揎干擾而產生衰減,同時,即使部份音波將穿透微細幾 何孔槽(12)與微細多曲面外觀面(11),卻由於微細幾何孔 槽(12)與微細多曲面外觀面(11)相當微細,在毛細管吸音 原理、立體錐狀擠壓原理及白努力原理之共同作用下,會 曰波之穿透損失而產生衰減,另,由於板體(1)之頂 面叹具成形為微細多曲面外觀面(11),可使穿透微細幾何 孔槽(12)與微細多曲面外觀面(11)之音波,藉由在樓板層 ⑵上與該微細多曲面外觀面⑴)間的反射碰撞,使音波更 加哀減,加上樓板層(2)與板體⑴頂面間之音波因碰到微 細夕曲面外觀面(11)與微細幾何孔槽⑽之錐面,而在個 別錐面上產生反射,並藉由微細多曲面外觀面⑴)與微細 8 200920902 幾何孔槽(12)錐面之相互交錯,使造成反射的音波相互碰 撞干擾而更衰減,同時,即使有部份音波將穿透微細幾何 孔槽(12)與微細多曲面外觀面(η)傳回室内空間,卻由於 微細幾何孔槽(12)與微細多曲面外觀面(11)相當微細’在 毛細官吸音原理及白努力原理之共同作用下又會造成音 波之农減’所以可達到相當良好之吸音效果。 然而前述之實施例或圖式並非限定本發明之板體材 質、微細幾何孔槽與微細多曲面外觀面之形狀或排列方 式’任何所屬技術領域中具有通常知識者之適當變化或修 飾’皆應視為不脫離本發明之專利範疇。 由上述之元件組成與實施說明可知,本發明與現有結 構相較之下’本發明具有以下之優點: 1. 本發明之金屬吸音板由於係成型為一金屬板體,不需要 加裝吸音薄層即具有良好之吸音效果,因此在組設上相 當方便而且快速。 2. 本發明之金屬吸音板由於其底面及頂面分別密佈凹設 有諸多的微細幾何孔槽與微細多曲面外觀面,且微細幾 何孔槽與微細多曲面外觀面係互相連通,利用毛細管吸 音原理、立體錐狀擠壓原理及白努力原理,並由於不同 角度之錐面產生相互折射,促成相互干涉現象而消耗空 氣動力之動能’不但可使反射的音波相互碰撞干擾而產 生哀減,同時,即使部份音波將穿透微細幾何孔槽與微 細多曲面外觀面,也會造成音波穿透損失,使其達到更 佳之吸音效果。 综上所述,本發明實施例確能達到所預期之使用功 效,又其所揭露之具體構造,不僅未曾見諸於同類產品 200920902 中,亦未曾公開於申請前,誠已完全符合專利法之規定與 要求,爰依法提出發明專利之申請,懇請惠予審查,並賜 准專利,則實感德便。 10 200920902 【圖式簡單說明】 第一圖:本發明之仰視立體圖 第二圖:本發明之實施例示意圖 第三圖:本發明之實施例剖視圖 第四圖:現有之立體示意圖 【主要元件符號說明】 <本發明> (1) 板體 (11) 微細多曲面外觀面 (12) 微細幾何孔槽 (2) 樓板層 <現 有> (3) 金屬板 (31) 侧端緣 (32) 穿孔 (33) 吸音薄層 (4) 輕鋼架 (41) 抵靠凸緣200920902 IX. Description of the Invention: [Technical Field] The present invention relates to a geometric microporous sound absorbing panel, in particular to an integral forming and quick assembly, and a plurality of fine multi-curved surface and fine Geometric hole groove, a geometric micro-hole sound-absorbing board that causes sound wave penetration loss and better sound absorption. [Prior Art] According to the development of science and technology civilization, life is full of various noises, such as the engine sound of vehicles, the sound of 9Y, aircraft or air-conditioning compressors, etc. Excessive noise often seriously affects the mood and destructs the quality of life. Especially the residents living on the elevated roads, the noise of the cars passing by, whether it is day or night, is quite annoying, and other places such as the generator room, machine room, factory or KTV in the basement of the building are also the most noise. The source of production, so to pursue a high-quality living environment, to provide a comfortable and quiet living environment, we must first pay attention to the necessity of noise prevention and control in such places, and in the way of noise prevention, the traditional main use objects are mostly The use of fibrous sound absorbing materials is because the fibrous sound absorbing material is a flexible material that can be elastically vibrated. Under the combined action of the membrane vibration theory and the capillary sound absorbing theory, the membrane material will absorb sound waves and resonate, and each of the membrane materials A capillary is a branch of the incident sound wave and generates a sound impedance in parallel. The very good sound-absorbing effect. Further, the sound-absorbing panels of rigid material is a very widespread use of the device. As shown in the fourth figure, the sound absorbing panel is provided with a conventional metal plate (3) mounted on a ceiling light steel frame (4), and the metal plate (3) is supported by its side edge ( 31) The side of the light steel frame (4) placed on the ceiling is placed above the flange (41) of 200920902. The metal is added to the inner layer of the metal plate (3) - (3 mesh) - there are several perforations (10) And lost: However, the above-mentioned sound-absorbing panels will have the following fault layers in the actual use, and need to add a sound-absorbing thin layer, which can achieve the more manpower: = 'r industry is more troublesome, and relatively There are a number of perforations in the upper opening, so that the sound waves can be sound-absorbing to the sound-absorbing thin layer installed on the suction layer to achieve the effect. However, since there are still many sound waves directly reflected by the metal plate, the sound absorption effect is not reported. Therefore, the inventor of the present invention needs to add a sound-absorbing thin layer to the above-mentioned sound absorbing panel, which is high in cost, and the sound recording is directly reversed by the metal plate to the inside, and the sound is good. Under the assistance of God and the Office, and the professional knowledge, technology and experience accumulated by Hunting for many years, ^ is committed to improvement and development, and thus invented a kind of body-forming and assembly, and it is concave on the top and bottom surfaces respectively. It is equipped with a number of connected micro-curved surface and micro-geometry holes, which cause the loss of sound waves and make the sound-absorbing effect better. The geometric microporous sound absorbing panel of the present invention mainly has a metal plate body, and the top surface of the plate body has a fine multi-curved surface, and the bottom surface of the plate body corresponds to the top surface of the plate body. The fine multi-curved surface is recessed with a micro-geometric groove of a three-dimensional cone shape, which causes the sound wave to attenuate when penetrating the fine geometric hole 200920902 and the fine multi-curved surface. [Embodiment] For the purpose of the present invention The technical content and efficacy have a more complete and clear disclosure. For the purpose of the invention and the achievement thereof, please refer to the drawings and drawings: the details are as follows; please give details below, please refer to the first The plate body made of metal (1) top surface shape geometric micro-hole sound absorbing plate system 01), and the bottom surface of the plate body (1) corresponds to the surface of the fine multi-curved surface appearance (1)) and is recessed with a plurality of three-dimensional m top surface Fine multi-curve (12), so that the bottom surface of the plate body (1) micro = the fine geometric surface of the fine geometric groove surface (1)) ^ H slot (10) and the sound of the top of the plate (1) hit the fine geometric hole (12) Cone / = 2 humans pass the original reflection 'and by micro Geometric hole groove (10) == Waves collide with each other to cause attenuation. When assembling the back and forth, please refer to the second and third figures. First, the number of plates (1) can be installed on the floor. Below the layer (2), since the bottom surface of the plate body (1) is recessed and formed with fine geometric holes (12), the sound waves generated in the room hit the tapered surface of the fine geometric hole (12), and the individual cones Reflection occurs on the surface, and the conical surfaces of the fine geometric holes (12) are interlaced, so that the reflected sound waves collide with each other and attenuate, and the top surface of the plate body (1) is also formed into a fine multi-surface appearance. The surface (11) allows the sound waves penetrating the fine geometric hole (12) and the fine multi-curved surface (11) to collide with each other by the reflection between the floor layer (2) and the fine multi-surface appearance surface (11). The sound wave is attenuated more, and at the same time, even if some of the sound waves will penetrate the fine geometric hole (12) and the fine multi-surface appearance surface (11) and return to the indoor space, due to the fine geometric hole (12) and the fine multi-surface appearance Face (11) is quite fine, and if the fine geometry 200920902 hole groove (12) The air is seen as being formed by a large number of extremely thin coaxial column layers. The acoustic motion in the axial direction of each layer is limited by the inertia and the viscous resistance proportional to the radial velocity in the radial direction, so that the acoustic wave is incident on When the plate body (1) passes through the fine geometric hole groove (12), the air in the fine geometric hole groove (12) starts to vibrate corresponding to the number of cycles of the sound wave, and the plate body (1) and the floor layer (2) are open. The air in the space is compressed and expanded as a spring, and the energy is lost by rubbing against the inner wall of the fine geometric hole (12), and the reflected sound waves collide with each other by the tapered surface of the fine geometric hole (12). Therefore, it will cause the penetration loss of the sound wave to attenuate and disappear, thereby achieving the effect of sound absorption. When it is used in operation, please refer to the second and third figures. Since the plate body (1) is formed with a plurality of fine geometric holes G2), the sound waves transmitted from all directions are easily touched by the fine geometric holes (12). The taper surface, and the reflection on the individual cone surfaces, and the interdigitated surface of the fine multi-curved surface (11) and the micro-holes (12), so that the reflected sound waves interfere with each other. Attenuation occurs, and at the same time, even though part of the sound waves will penetrate the fine geometric holes (12) and the fine multi-curved surface (11), the fine geometric holes (12) and the fine multi-curved surface (11) are rather fine. Under the joint action of the capillary sound absorption principle, the three-dimensional cone extrusion principle and the white effort principle, the penetration loss of the chopping wave is generated, and the top surface of the plate body (1) is formed into a fine multi-surface appearance. The surface (11) allows the sound waves penetrating the fine geometric hole (12) and the fine multi-curved surface (11) to be collided by reflection between the floor layer (2) and the fine multi-surface appearance surface (1). The sound waves are more sorrowful, plus the floor layer (2 The sound wave between the top surface of the plate body (1) and the tapered surface of the fine geometric hole (10) due to the surface of the fine curved surface (11) and the fine geometric hole (10), and the reflection on the individual tapered surface, and the surface of the fine multi-curved surface (1) Intersected with the tapered surface of the fine hole of the 2009-20902 geometry hole (12), so that the reflected sound waves collide with each other and attenuate, and at the same time, even if some sound waves will penetrate the fine geometric hole (12) and the fine multi-surface appearance The surface (η) is transmitted back to the indoor space, but the fine geometric hole (12) and the fine multi-curved surface (11) are quite fine. Under the joint action of the capillary sound absorption principle and the white effort principle, the sound wave is reduced. 'So you can achieve quite good sound absorption. However, the foregoing embodiments or drawings do not limit the shape or arrangement of the plate material, the fine geometric hole groove and the fine multi-curved surface of the present invention. Any suitable change or modification of any one of ordinary skill in the art should be It is considered that the patent scope of the invention is not deviated. It can be seen from the above components and implementation description that the present invention has the following advantages compared with the prior art: 1. The metal sound absorbing panel of the present invention is formed into a metal plate body without adding a sound absorbing film. The layer has a good sound absorption effect, so it is quite convenient and fast in the assembly. 2. The metal sound absorbing panel of the present invention has a plurality of fine geometric holes and a fine multi-curved surface, and the fine geometric holes and the micro-curved surface are interconnected by the bottom surface and the top surface, respectively, and the capillary sound absorbing is utilized. The principle, the principle of three-dimensional cone extrusion and the principle of white effort, and the kinetic energy that consumes aerodynamic forces due to the mutual refraction of the tapered surfaces at different angles, which not only causes the reflected sound waves to collide with each other, but also sorrows. Even if some of the sound waves will penetrate the fine geometric holes and the fine multi-curved surface, it will cause the sound wave penetration loss, so that it can achieve better sound absorption. In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in the similar products 200920902, nor has it been disclosed before the application, and has completely complied with the patent law. The regulations and requirements, the application for invention patents in accordance with the law, and the application for review, and the grant of patents, are truly sensible. 10 200920902 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a bottom perspective view of the present invention. FIG. 2 is a schematic view showing an embodiment of the present invention. FIG. 3 is a cross-sectional view showing an embodiment of the present invention. <Invention> (1) Plate body (11) Fine multi-curved surface (12) Fine geometry hole (2) Floor layer < existing > (3) Metal plate (31) Side edge (32 ) Perforated (33) Sound absorbing layer (4) Light steel frame (41) Abutting flange

Claims (1)

200920902 十、申請專利範圍: 1. 一種幾何微孔吸音板,係於樓板層之下方裝設有板體, 板體之頂面形成有微細多曲面外觀面,且板體之底面凹 設有微細幾何孔槽與微細多曲面外觀面相連通。 2. 如申請專利範圍第1項所述之幾何微孔吸音板,其中, 該板體係由金屬製成。 3. 如申請專利範圍第1項所述之幾何微孔吸音板,其中, 該微細幾何孔槽係呈立體錐之形狀。 12200920902 X. Patent application scope: 1. A geometric micro-hole sound-absorbing board is provided with a plate body below the floor layer. The top surface of the plate body is formed with a fine multi-curved surface, and the bottom surface of the plate body is concavely provided with fine The geometric hole is connected to the surface of the fine multi-surface. 2. The geometric microporous sound absorbing panel of claim 1, wherein the panel system is made of metal. 3. The geometric microporous sound absorbing panel of claim 1, wherein the fine geometric hole is in the shape of a solid cone. 12
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009240A1 (en) 2009-07-24 2011-01-27 青钢金属建材股份有限公司 Method of making micro-holes on metal plate
US20130075151A1 (en) * 2011-09-23 2013-03-28 Po-Ming Chen Electro-magnetic wave filtering and impeding boards
CN112512868A (en) * 2018-09-25 2021-03-16 丰田车体株式会社 Sound absorbing and insulating member and method for manufacturing same
CN115434472A (en) * 2021-06-01 2022-12-06 赵廷云 Anti-seismic heat-insulation sound-insulation wallboard for house building

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009240A1 (en) 2009-07-24 2011-01-27 青钢金属建材股份有限公司 Method of making micro-holes on metal plate
CN102439239A (en) * 2009-07-24 2012-05-02 青钢金属建材股份有限公司 Method of making micro-holes on metal plate
CN102439239B (en) * 2009-07-24 2013-11-13 青钢金属建材股份有限公司 Method of making micro-holes on metal plate
US20130075151A1 (en) * 2011-09-23 2013-03-28 Po-Ming Chen Electro-magnetic wave filtering and impeding boards
CN112512868A (en) * 2018-09-25 2021-03-16 丰田车体株式会社 Sound absorbing and insulating member and method for manufacturing same
CN112512868B (en) * 2018-09-25 2023-08-25 丰田车体株式会社 Method for manufacturing sound absorbing and insulating member
CN115434472A (en) * 2021-06-01 2022-12-06 赵廷云 Anti-seismic heat-insulation sound-insulation wallboard for house building
CN115434472B (en) * 2021-06-01 2024-02-09 新疆中疆建设集团有限公司 Shock-resistant heat-insulating sound-insulating wallboard for house building

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