M384891 五、新型說明： 【新型所屬之技術領域】 本創作關於一種吸音裝置’特指—種金屬吸音板。 【先前技術】 聲音是一種可為人的聽覺器官所接收的音波，當音量 過大時，聲音便成為噪音，噪音會造成聽覺器官的里 並進而影響人的神經系統及睡眠，是以在易發生噪音的場 所，一般設有吸音裝置來解決嗓音問題，現有技的二 種吸音裝置，是採用具有複數微小穿孔的—金屬板以及具 有隔音效果的一吸音層的兩層式結構來產生吸音效果，例 如使用於建築物的天花板的場合，則於天花板下方M384891 V. New description: [New technical field] This creation is about a sound absorbing device. [Prior Art] Sound is a kind of sound wave that can be received by human auditory organs. When the volume is too loud, the sound becomes noise. The noise will cause the hearing organs to affect the human nervous system and sleep. In the place of noise, sound absorbing devices are generally provided to solve the problem of squeaking sounds. The two types of sound absorbing devices of the prior art use a two-layer structure of a metal plate having a plurality of micro-perforations and a sound absorbing layer having a sound insulating effect to generate a sound absorbing effect. For example, when it is used in the ceiling of a building, it is below the ceiling.
收，藉此消弭噪音帶來的危害。Receive, to eliminate the harm caused by noise.
為繁雜，因此該吸音裝置的使用成本亦較高。 【新型内容】 有繁於上述現有技術之吸音裝置部 不僅拆裝不便，且It is complicated, so the use cost of the sound absorbing device is also high. [New content] The sound absorbing device portion which is versatile in the above prior art is not only inconvenient to assemble and disassemble, but also
吸音層的設置，據以降低使用成本。 3 M384891 為達成上述創作目的，本創作所使用之技術手段在於 提供一種金屬吸音板，其包含有一金屬材質的板體，該板 體具有一頂面及一底面，其中： 該板體的底面凹設有複數梯形錐孔，該些梯形錐孔呈 複數列的橫列設置’各梯形錐孔的錐尖處形成有一貫穿板 體的穿孔； 該板體的頂面内凹形成有複數列的凹溝，各列凹溝分 別對應於板體底面的一橫列的複數梯形錐孔，梯形錐孔的 鲁 穿孔於板體頂面上的開口係位於凹溝的底部。 本創作之金屬吸音板，其使用時係以板體的底面朝向 噪音源，當噪音的音波傳遞至板體時，其中部分音波於梯 形錐孔的錐面上產生反射且相互干優而衰減，剩餘的音波 在通過板體後傳遞至位於板體後方的結構物後反彈，再傳 遞回板體’並在板體頂面的凹槽的槽面上產生反射且相互 干擾而再次衰減，因此本創作的金屬吸音板具有良好的吸 音效果，其單獨使用時已可滿足需求，從而可省去吸音層 •的設置，達到簡化組裝手續及節省設置成本的目的。 【實施方式】 參見第一及二圖所示，本創作之金屬吸音板，其包含 有一板體（10)，該板體（1〇)為金屬材質，例如可為鋁或鋁合 金，該板體（10)具有一頂面02)及一底面（11)，其中： 該板體（10)的底面（11)凹設有複數梯形錐孔（111)，該 些梯形錐孔（111)呈複數列的橫列設置，各梯形錐孔（111)的 錐尖處形成有一貫穿板體（10)的穿孔（112)，於本實施例中， 每一橫列上的各梯形錐孔（1丨1}皆相對位於相鄰橫列的兩梯 4 M384891 形錐孔（111)之間； 該板體（10)的頂面（12)内凹形成有複數列的凹溝 (121)，各列凹溝（121)分別對應於板體（1〇)底面（丨〇的一橫 列的複數梯形錐孔（111) ’梯形錐孔u)的穿孔（〖12)於板 體（10)頂面（12)上的開口係位於凹溝（丨21)的底部。 參見第三圖所示，為本創作之金屬吸音板使用時的設 置示意圖，如圖所示板體（10)係以底面（11)朝向嗓音源，當 免音的音波傳遞至板體（10)時，其中部分音波於梯形錐孔 • (111)的錐面上產生反射且相互干擾而衰減，是以此時部分 的噪音已消除，而另一部分的音波係經由穿孔（112)而通過 板體（10)’並在通過穿孔（112)的同時為板體（10)所吸收， 剩餘未被吸收的音波，則在通過板體（1〇)後傳遞至位於板 體（1〇)後方的結構物（20)後反彈再傳遞回板體（1〇)，並在板 體（1〇)頂面的凹溝（121)的溝面上產生反射且相互干擾而再 次衣減’至此音波的能量幾已消耗殆盡； 由上述可知，本創作的金屬吸音板具有相較於現有技 •術之吸音裝置中的金屬板更佳的吸音效果，其單獨使用時 已可滿足需求，從而可省去吸音層的設置，達到簡化組裝 手續及節省設置成本的目的。 【圖式簡單說明】 第一圖為本創作之俯視立體圖。 第二圖為本創作之仰視立體圖。 第三圖為本創作之使用狀態圖。 【主要元件符號說明】 5 M384891 (ίο)板體 (111)梯形錐孔 (12)頂面 (20)結構物 (11)底面 (1 12)穿孔 (121)凹溝The sound absorbing layer is set to reduce the cost of use. 3 M384891 In order to achieve the above purpose, the technical means used in the present invention is to provide a metal sound absorbing panel comprising a metal plate body having a top surface and a bottom surface, wherein: the bottom surface of the plate body is concave a plurality of trapezoidal tapered holes are provided, and the trapezoidal tapered holes are arranged in a plurality of rows. The tapered tips of the trapezoidal tapered holes are formed with a through hole extending through the plate body; the top surface of the plate body is concavely formed with a plurality of columns of concaves The groove, each row of concave grooves respectively correspond to a plurality of trapezoidal tapered holes of a row of the bottom surface of the plate body, and the opening of the trapezoidal tapered hole on the top surface of the plate body is located at the bottom of the groove. The metal sound absorbing panel of the present invention is used when the bottom surface of the plate body faces the noise source, and when the sound wave of the noise is transmitted to the plate body, part of the sound waves are reflected on the tapered surface of the trapezoidal cone hole and are mutually excellent and attenuated. The remaining sound waves are transmitted back to the structure behind the plate body after passing through the plate body, and then bounced back to the plate body and reflected and interfered with each other on the groove surface of the groove on the top surface of the plate body to be attenuated again. The created metal sound absorbing panel has a good sound absorbing effect, and it can meet the demand when used alone, thereby eliminating the need for the sound absorbing layer to simplify the assembly process and save the installation cost. [Embodiment] Referring to the first and second figures, the metal sound absorbing panel of the present invention comprises a plate body (10) which is made of a metal material, for example, aluminum or aluminum alloy, the plate The body (10) has a top surface 02) and a bottom surface (11), wherein: the bottom surface (11) of the plate body (10) is recessed with a plurality of trapezoidal tapered holes (111), and the trapezoidal tapered holes (111) are The rows of the plurality of columns are arranged, and the taper tips of the trapezoidal taper holes (111) are formed with a through hole (112) penetrating the plate body (10). In this embodiment, each trapezoidal taper hole on each row (1)丨1} are located between two ladders 4 M384891-shaped tapered holes (111) of adjacent rows; the top surface (12) of the plate body (10) is concavely formed with a plurality of rows of grooves (121), each of which The column groove (121) corresponds to the perforation of the bottom surface of the plate body (1〇) (the plural trapezoidal taper hole (111) of the crucible (the trapezoidal cone hole u) (12) on the top of the plate body (10) The opening on the surface (12) is located at the bottom of the groove (丨21). Referring to the third figure, the schematic diagram of the metal sound absorbing panel of the present invention is used, and the board body (10) is bottomed as shown in the figure. (11) Towards the sound source, when the soundless sound waves are transmitted to the plate body (10), some of the sound waves are reflected on the tapered surface of the trapezoidal taper hole (111) and are mutually attenuated and attenuated, so that part of the noise is eliminated at this time. And another part of the sound wave passes through the plate body (10)' via the perforation (112) and is absorbed by the plate body (10) while passing through the perforation (112), and the remaining unabsorbed sound waves pass through the plate body. (1〇) is transmitted to the structure (20) located behind the plate body (1〇), rebounded and then transferred back to the plate body (1〇), and the groove (121) on the top surface of the plate body (1〇) The energy on the groove surface is reflected and interferes with each other and is reduced again. The energy of the sound wave has been exhausted. As can be seen from the above, the metal sound absorbing panel of the present invention has better metal plate than the sound absorbing device of the prior art. The sound absorbing effect can be satisfied when it is used alone, so that the setting of the sound absorbing layer can be omitted, the assembly procedure can be simplified, and the installation cost can be saved. [Simplified illustration] The first figure is a top perspective view of the creation. The second picture is the bottom view of the creation The third figure is the usage state diagram of the creation. [Main component symbol description] 5 M384891 (ίο) plate body (111) trapezoidal taper hole (12) top surface (20) structure (11) bottom surface (1 12) perforation ( 121) Groove