TWI392838B - Whistle box structure - Google Patents
Whistle box structure Download PDFInfo
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- TWI392838B TWI392838B TW99118874A TW99118874A TWI392838B TW I392838 B TWI392838 B TW I392838B TW 99118874 A TW99118874 A TW 99118874A TW 99118874 A TW99118874 A TW 99118874A TW I392838 B TWI392838 B TW I392838B
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Description
本發明係關於一種消音箱結構,並且特別地,本發明係關於一種具有高消音效率之簡易消音箱結構。The present invention relates to a speaker structure, and in particular, to a simple speaker structure having high noise reduction efficiency.
現今之流體調節系統均存在運作噪音之問題。以送風機為例,其噪音之來源分為兩種,一為結構噪音,另一為氣動噪音。Today's fluid conditioning systems have operational noise problems. Taking the blower as an example, the source of the noise is divided into two types, one is structural noise and the other is pneumatic noise.
結構噪音之形成通常存在一振動源,振動源帶動振動源本身或其週邊結構震動以構成噪音,在噪音抑制時透過確認噪音源之源頭便能因應其成因予以抑制,其難度有限。The formation of structural noise usually has a vibration source. The vibration source drives the vibration source itself or its surrounding structure to vibrate to form noise. When the noise is suppressed, the source of the noise source can be suppressed according to its cause, which is limited in difficulty.
而氣動噪音之形成,主要原因如因風機葉片通道中間所流動的氣流,常於氣流離開葉片尾端時,較容易產生分主流;由於葉輪轉動便流經該處的氣流受到壓縮以使周圍氣體壓力因而產生急遽變化形成噪音;因氣流受到撞擊葉片而產生週期性的壓力變化以形成一特定頻率之噪音。The formation of aerodynamic noise, mainly due to the airflow flowing in the middle of the fan blade passage, is more likely to be generated when the airflow leaves the trailing end of the blade; the airflow passing through the impeller is compressed to make the surrounding gas The pressure thus creates a rapid change to form a noise; as the airflow is subjected to periodic pressure changes by impacting the blades to form a specific frequency of noise.
觀其上述氣動噪音之形成原因之多,要從氣動噪音本身找出裝置氣動噪音產生的真正原因恐非易事,故此,與其直接抑制噪音,現存較有效之方法為利用消音器來處理該等氣動噪音。It is not easy to find out the actual cause of the aerodynamic noise from the aerodynamic noise itself. Therefore, instead of directly suppressing the noise, the more effective method is to use a silencer to handle such noise. Pneumatic noise.
有鑑於此,本發明的目的就是在提供一種可降低氣動噪音生成之消音箱結構,以其簡潔之設計有效的處理上述之氣動噪音之問題。In view of the above, the object of the present invention is to provide a speaker structure that can reduce the generation of aerodynamic noise, and to effectively handle the above-mentioned aerodynamic noise with its simple design.
詳述及所附圖式得到進一步的瞭解。The details and the drawings are further understood.
有鑑於此,本發明之一範疇在於提供一種消音箱結構,以降低氣動噪音之生成,其包含有:一箱體及一連接部。In view of the above, one aspect of the present invention is to provide a speaker structure for reducing the generation of aerodynamic noise, comprising: a box body and a connecting portion.
該箱體包含一第一開口部及一第二開口部,該第一開口部及該第二開口部各自設於該箱體之兩端並相互貫通,用以供一流體流通,該第一開口部之一有效寬度小於該箱體之一深度。該連接部連接該箱體及一管體。The first opening portion and the second opening portion are respectively disposed at two ends of the box body and penetrate each other for a fluid to circulate, the first One of the effective widths of the opening is less than one of the depths of the case. The connecting portion connects the box body and a tube body.
此外,於實際應用中,有效寬度與該箱體之該深度比例為1:2至1:5。In addition, in practical applications, the ratio of the effective width to the depth of the box is 1:2 to 1:5.
再者,該第一開口部垂直於該流體之流動方向所圍設之截面積大於該管體垂直於該流體之流動方向所圍設之截面積。Furthermore, the cross-sectional area of the first opening portion perpendicular to the flow direction of the fluid is larger than the cross-sectional area of the tube body perpendicular to the flow direction of the fluid.
此外,該第一開口部垂直於該流體流動方向所圍設之截面積與該第二開口部垂直於該流體流動方向所圍設之截面積相 同。In addition, a cross-sectional area of the first opening portion perpendicular to the fluid flow direction and a cross-sectional area of the second opening portion perpendicular to the fluid flow direction are with.
另外,於實際應用中,該箱體進一步包含有複數個消音元件,每一該消音元件設置該箱體內部之表面上,其中該複數個消音元件相互水平排列。再者,該消音元件由具孔狀結構之金屬板材、玻璃纖維布、吸音棉或其他多孔隙吸音材料所製成。In addition, in practical applications, the box further includes a plurality of sound absorbing members, each of the sound absorbing members being disposed on a surface of the inner portion of the box, wherein the plurality of sound absorbing members are horizontally arranged with each other. Further, the sound absorbing member is made of a metal plate having a hole-like structure, a glass fiber cloth, a sound absorbing cotton or other porous sound absorbing material.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.
本發明之主要範疇在於提供一種具有高消音效率之簡易消音箱結構,用以降低氣動噪音之生成。The main scope of the present invention is to provide a simple speaker structure with high silencing efficiency for reducing the generation of aerodynamic noise.
請一併參閱圖一及圖二,圖一為本發明之一具體實施例之消音箱結構及其配置之示意圖。圖二係沿圖一中之X-X線之局部剖面圖。Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a schematic diagram of a speaker structure and a configuration thereof according to an embodiment of the present invention. Figure 2 is a partial cross-sectional view taken along line X-X of Figure 1.
根據本發明之一較佳具體實施例,消音箱1為一種中空的箱體結構,用於減少流體調節系統中流體進入或離開時所產生之噪音。上述之消音箱1包含箱體10、連接部20以及消音元件30。In accordance with a preferred embodiment of the present invention, the speaker 1 is a hollow cabinet structure for reducing noise generated when fluid enters or exits the fluid conditioning system. The speaker 1 described above includes a case 10, a connecting portion 20, and a sound absorbing member 30.
再者,上述的流體調節系統(未顯於圖)通常包含至少一個用於輸入或輸出流體之管道50,以透過上述之管道50吸取或排出流體,以達到於指定空間調節流體流動。於本具體實施例中,上述之流體係指空氣,然而其不以空氣為必要,其亦可為任何一種氣體、氣態物質或上述各者之混合物。本具體實施例中,上述的流體調節系統於為送風機,然其亦可為冷氣、空調、內燃機或其他使流體產生強制對流之系統。Moreover, the fluid conditioning system described above (not shown) typically includes at least one conduit 50 for the input or output of fluid to draw or discharge fluid through conduit 50 to achieve fluid flow in a designated space. In the present embodiment, the above flow system refers to air, however it is not necessary for air, and it may be any gas, gaseous substance or a mixture of the above. In the specific embodiment, the fluid regulating system is a blower, but it may also be a cold air, an air conditioner, an internal combustion engine or other system for forcibly convecting a fluid.
上述之消音箱1之箱體10包含第一開口部12及第二開口部14。上述的第一開口部12及第二開口部14係各自的設置於上述箱體10之兩端並相互貫通以供上述之流體流通,其流 體之流動方向22平行於上述管體50之延伸方向。The casing 10 of the above-described speaker 1 includes a first opening 12 and a second opening 14. The first opening portion 12 and the second opening portion 14 are respectively disposed at both ends of the casing 10 and penetrate each other to allow the fluid to flow therethrough. The flow direction 22 of the body is parallel to the direction in which the tubular body 50 extends.
於本具體實施例中,箱體10之第一開口部12於垂直於上述流體流動方向22所圍設之截面積可與第二開口部14於垂直於上述流體之流動方向22所圍設之截面積相同,以形成矩形之箱體10。然而箱體之外型不以矩形為必要,亦可為各種不同之立體幾何形狀。上述所述之截面面積不包含箱體10所佔之面積。In this embodiment, the cross-sectional area of the first opening portion 12 of the casing 10 that is perpendicular to the fluid flow direction 22 can be surrounded by the second opening portion 14 perpendicular to the flow direction 22 of the fluid. The cross-sectional areas are the same to form a rectangular box 10. However, the shape of the box is not necessarily rectangular, but also various geometric shapes. The cross-sectional area described above does not include the area occupied by the casing 10.
連接部20之兩端分別連接上述的箱體10以及管體50使上述元件之內部空間相互貫通以容許流體於箱體10及管體50間按其上述各元件之延伸方向流動。Both ends of the connecting portion 20 are connected to the above-described case 10 and the tube body 50 so that the internal spaces of the elements penetrate each other to allow fluid to flow between the case 10 and the tube 50 in the extending direction of the respective elements.
於本具體實施例中,上述消音箱1之第二開口部14透過連接部20與管體50連接。然而,按其設計之需要,該連接部20亦可連接於消音箱1之第一開口部12。In the specific embodiment, the second opening portion 14 of the speaker 1 is connected to the tubular body 50 through the connecting portion 20. However, the connecting portion 20 may also be connected to the first opening portion 12 of the speaker 1 according to the design of the speaker.
於本具體實施例中,上述之連接部20及箱體10為一體成型並於其連接部20之一端與管體50之共同表面塗佈有一黏著材料用以固定連接部20及管體50之相對位置,同時用以封閉該接觸界面間之空隙以為一氣密之空間,然其不以利用密封材料為必要,其亦可利用焊接、機構或其他習知技藝為連接的手段。上述之連接部20及箱體10非以一體成型為必要。In the embodiment, the connecting portion 20 and the casing 10 are integrally formed, and an adhesive material is applied to the common surface of the connecting portion 20 and the tubular body 50 for fixing the connecting portion 20 and the tubular body 50. The relative position, at the same time, is used to close the gap between the contact interfaces to be an airtight space. However, it is not necessary to utilize the sealing material, and it may also be connected by means of welding, mechanism or other conventional techniques. The above-described connecting portion 20 and the casing 10 are not necessarily integrally formed.
消音箱1包含複數個上述之消音元件30,上述之複數個消音元件30均設置於箱體10內部之表面上,各個消音元件30可以但不限於同時接觸並固設於箱體內部之兩個相對應之表面上,上述所提到的箱體內部與消音元件30接觸之各表面。再者,各個消音元件30均為相互平行設置。The speaker 1 includes a plurality of the above-mentioned sound absorbing members 30, and the plurality of sound absorbing members 30 are disposed on the inner surface of the casing 10. The sound absorbing members 30 can be, but are not limited to, two that are simultaneously contacted and fixed in the interior of the casing. On the corresponding surface, the surfaces of the above-mentioned case that are in contact with the sound absorbing member 30 are inside. Furthermore, each of the silencing elements 30 is disposed in parallel with each other.
消音元件30係利用一消音材料所製造,其中上述之消音材料由具孔狀結構之金屬板材、玻璃纖維布、吸音棉或其他多孔隙吸音材料。The sound absorbing member 30 is made of a sound absorbing material made of a metal plate having a hole-like structure, a glass fiber cloth, a sound absorbing cotton or other porous sound absorbing material.
再者,於本具體實施例中,上述之第一開口部12於垂直於上述之流體之流動方向22所圍設之截面積大於上述管體50於垂直於該流體之流動方向22所圍設之截面積,以增加流經箱體之流體流量並補足上述消音元件30於箱體10之兩端所佔用之截面面積,上述所述之截面面積不包含箱體10所佔之面積。Furthermore, in the specific embodiment, the cross-sectional area of the first opening portion 12 perpendicular to the flow direction 22 of the fluid is larger than the flow direction 22 of the tube 50 perpendicular to the fluid. The sectional area is increased to increase the flow rate of the fluid flowing through the casing and to fill the cross-sectional area occupied by the sound absorbing member 30 at both ends of the casing 10. The sectional area described above does not include the area occupied by the casing 10.
請參閱圖三,圖三為本發明之一具體實施例之消音箱結構之示意圖。箱體10進一步包含第一表面16、第二表面17、深度18以及有效寬度19。Referring to FIG. 3, FIG. 3 is a schematic diagram of a structure of a speaker according to an embodiment of the present invention. The casing 10 further includes a first surface 16, a second surface 17, a depth 18, and an effective width 19.
第一表面16之面積為箱體10於垂直於上述之流體之流動方向22所圍設之截面積,上述第一表面16之面積之計算不包含箱體10所佔之面積,為進一步明確上述之第一表面16所指之表面,特於圖中以斜線標示之。The area of the first surface 16 is the cross-sectional area of the casing 10 which is perpendicular to the flow direction 22 of the fluid. The calculation of the area of the first surface 16 does not include the area occupied by the casing 10, so as to further clarify the above. The surface indicated by the first surface 16 is indicated by a diagonal line in the figure.
第二表面17為箱體10內部與消音元件30接觸之各表面。The second surface 17 is the surface of the interior of the casing 10 that is in contact with the sound absorbing member 30.
深度18為箱體10及連接部20於上述流體流動方向之長度之和,其深度直接影響氣體流動之方式及消音箱之消音效果。The depth 18 is the sum of the lengths of the casing 10 and the connecting portion 20 in the direction of the fluid flow, and the depth directly affects the manner of the gas flow and the noise cancellation effect of the speaker.
有效寬度19指消音元件30與箱體10內部接觸之其中一個表面,亦則第二表面17與上述第一表面16交會處之長度,經減去上述消音結構30所佔長度之剩值。The effective width 19 refers to one of the surfaces of the sound absorbing member 30 in contact with the inside of the casing 10, and the length at which the second surface 17 meets the first surface 16, minus the remaining value of the length of the sound absorbing structure 30.
請再參閱圖三,有效寬度19為各寬度分量192之總和,透過改變箱體之有效寬度19,箱體10之流體流量及噪音之大小亦會隨之而改變。於相同單位時間中所能接受之流體流量成正比。Referring to FIG. 3 again, the effective width 19 is the sum of the width components 192. By changing the effective width 19 of the box, the fluid flow and noise of the casing 10 will also change. It is proportional to the fluid flow that can be accepted in the same unit time.
有效寬度19以及上述之深度18之比例直接影響消音箱1之消音效能。第一開口部12之有效寬度19應小於該箱體10 之深度18。The ratio of the effective width 19 to the depth 18 described above directly affects the silencing performance of the speaker 1 . The effective width 19 of the first opening portion 12 should be smaller than the housing 10 The depth is 18.
為最佳化消音箱1之消音效能,當上述有效寬度19與箱體10深度18之比例為1:2至1:5時,消音箱1之消音效能將獲明顯改善。於本具體實施例中,箱體10之有效寬度19與箱體10之深度18之比例為1:3。In order to optimize the silencing performance of the speaker 1, when the ratio of the effective width 19 to the depth 18 of the cabinet 10 is 1:2 to 1:5, the silencing performance of the speaker 1 will be significantly improved. In the present embodiment, the ratio of the effective width 19 of the casing 10 to the depth 18 of the casing 10 is 1:3.
請一併參閱圖四及圖五,圖四為本發明之另一具體實施例之消音箱結構之示意圖,而圖五為沿圖四中之X-X線之局部剖面圖。Referring to FIG. 4 and FIG. 5 together, FIG. 4 is a schematic diagram of a structure of a speaker according to another embodiment of the present invention, and FIG. 5 is a partial cross-sectional view taken along line X-X of FIG.
圖四及圖五之各主要特徵均與前述之具體實施例相似,故於此不多加贅述。然而,於本具體實施例中,消音箱之連接部20及箱體10係分別製造後再相互連接而成。其二者之間之連接可利用黏著、焊接、機構或其他習知的技術為之。The main features of FIG. 4 and FIG. 5 are similar to the specific embodiments described above, and thus will not be further described herein. However, in the specific embodiment, the connecting portion 20 and the casing 10 of the speaker are manufactured separately and then connected to each other. The connection between the two can be made by adhesion, welding, mechanism or other conventional techniques.
於本具體實施例中,各個連接介面均填有密封材料用以固定各元件之相對位置之同時,亦用以封閉該接觸界面間之空隙以形成一氣密空間,然其不以利用密封材料為必要,其亦可利用焊接、機構或其他習知技藝為連接手段。In this embodiment, each of the connection interfaces is filled with a sealing material for fixing the relative positions of the components, and is also used to close the gap between the contact interfaces to form an airtight space, but not by using a sealing material. If necessary, it may also utilize welding, mechanism or other conventional techniques as a means of attachment.
請一併參閱圖六及圖七,圖六為本發明之另一具體實施例之消音箱結構之示意圖,圖七為沿圖六中之X-X線之局部剖面圖。Please refer to FIG. 6 and FIG. 7 together. FIG. 6 is a schematic diagram of a structure of a speaker according to another embodiment of the present invention, and FIG. 7 is a partial cross-sectional view taken along line X-X of FIG.
圖六及圖七之各主要特徵均與前述之具體實施例相似,故於此不多加贅述。然而,於本具體實施例中,消音箱之連接部20及箱體10為一體成形,而且上述二元件於垂直於上述之流體之流動方向22所圍設之截面積形狀相同。The main features of FIG. 6 and FIG. 7 are similar to the foregoing specific embodiments, and thus will not be further described herein. However, in the present embodiment, the connecting portion 20 of the speaker and the casing 10 are integrally formed, and the cross-sectional areas of the two elements that are perpendicular to the flow direction 22 of the fluid are the same.
於本具體實施例中,連接部20之兩端分別連接上述箱體10之第一開口部12以及管體50,使上述元件之內部空間相互貫通以容許流體於箱體10及管體50間按其上述各元件之延伸方向流動。各元件間可利用黏著、焊接、機構或其他習知的技 術連接之。In the embodiment, the two ends of the connecting portion 20 are respectively connected to the first opening portion 12 of the casing 10 and the pipe body 50, so that the internal spaces of the components penetrate each other to allow fluid to flow between the casing 10 and the pipe body 50. Flows in the direction in which the above components extend. Adhesive, welding, mechanical or other conventional techniques can be used between components Connected.
藉由以上較佳具體實施例之詳述,係希望能更加清楚描述本發明之特徵與精神,而並非以上述所揭露的較佳具體實施例來對本發明之範疇加以限制。相反地,其目的是希望能涵蓋各種改變及具相等性的安排於本發明所欲申請之專利範圍的範疇內。The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.
1‧‧‧消音箱1‧‧‧Speaker
10‧‧‧箱體10‧‧‧ cabinet
12‧‧‧第一開口部12‧‧‧ first opening
14‧‧‧第二開口部14‧‧‧Second opening
16‧‧‧第一表面16‧‧‧ first surface
17‧‧‧第二表面17‧‧‧ second surface
18‧‧‧深度18‧‧‧depth
19‧‧‧有效寬度19‧‧‧effective width
192‧‧‧寬度分量192‧‧‧width component
20‧‧‧連接部20‧‧‧Connecting Department
22‧‧‧流動方向22‧‧‧ Flow direction
30‧‧‧消音元件30‧‧‧Damping components
50‧‧‧管體50‧‧‧ tube body
圖一為本發明之一具體實施例之消音箱結構及其配置之示意圖。FIG. 1 is a schematic diagram of a speaker structure and a configuration thereof according to an embodiment of the present invention.
圖二係沿圖一中之X-X線之局部剖面圖。Figure 2 is a partial cross-sectional view taken along line X-X of Figure 1.
圖三為本發明之一具體實施例之消音箱結構之示意圖。FIG. 3 is a schematic diagram of a structure of a speaker according to an embodiment of the present invention.
圖四為本發明之另一具體實施例之消音箱結構之示意圖。4 is a schematic view showing the structure of a speaker of another embodiment of the present invention.
圖五為沿圖四中之X-X線之局部剖面圖。Figure 5 is a partial cross-sectional view taken along line X-X of Figure 4.
圖六為本發明之另一具體實施例之消音箱結構之示意圖。Fig. 6 is a schematic view showing the structure of a speaker of another embodiment of the present invention.
圖七為沿圖六中之X-X線之局部剖面圖。Figure 7 is a partial cross-sectional view taken along line X-X of Figure 6.
1‧‧‧消音箱1‧‧‧Speaker
10‧‧‧箱體10‧‧‧ cabinet
16‧‧‧第一表面16‧‧‧ first surface
17‧‧‧第二表面17‧‧‧ second surface
18‧‧‧深度18‧‧‧depth
19‧‧‧有效寬度19‧‧‧effective width
192‧‧‧寬度分量192‧‧‧width component
20‧‧‧連接部20‧‧‧Connecting Department
30‧‧‧消音元件30‧‧‧Damping components
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW99118874A TWI392838B (en) | 2010-06-10 | 2010-06-10 | Whistle box structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW99118874A TWI392838B (en) | 2010-06-10 | 2010-06-10 | Whistle box structure |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201144709A TW201144709A (en) | 2011-12-16 |
TWI392838B true TWI392838B (en) | 2013-04-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW99118874A TWI392838B (en) | 2010-06-10 | 2010-06-10 | Whistle box structure |
Country Status (1)
Country | Link |
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TW (1) | TWI392838B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106288301A (en) * | 2016-10-10 | 2017-01-04 | 广州康美风空调设备有限公司 | Acoustic filter integrated casing and preparation method thereof |
CN110793181B (en) * | 2019-10-28 | 2022-09-13 | 青岛海尔空调电子有限公司 | Wind pipe machine noise reduction device and method for designing acoustic metamaterial module for same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2299155Y (en) * | 1996-10-30 | 1998-12-02 | 李戈夫 | Shunting impedance step-down silencer |
CN1573199A (en) * | 2003-05-23 | 2005-02-02 | 株式会社神户制钢所 | Noise reduction structure of porous plate |
CN1715622A (en) * | 2004-07-02 | 2006-01-04 | 本田技研工业株式会社 | Muffler device |
CN101016853A (en) * | 2006-02-07 | 2007-08-15 | Lg电子株式会社 | Silencer |
CN201025096Y (en) * | 2007-04-09 | 2008-02-20 | 朱文龙 | Rectangle muffler |
TWM329716U (en) * | 2007-09-21 | 2008-04-01 | Yao-Gan Chen | Noise reduction chest structure of a blower ventilation shaft |
-
2010
- 2010-06-10 TW TW99118874A patent/TWI392838B/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2299155Y (en) * | 1996-10-30 | 1998-12-02 | 李戈夫 | Shunting impedance step-down silencer |
CN1573199A (en) * | 2003-05-23 | 2005-02-02 | 株式会社神户制钢所 | Noise reduction structure of porous plate |
CN1715622A (en) * | 2004-07-02 | 2006-01-04 | 本田技研工业株式会社 | Muffler device |
CN101016853A (en) * | 2006-02-07 | 2007-08-15 | Lg电子株式会社 | Silencer |
CN201025096Y (en) * | 2007-04-09 | 2008-02-20 | 朱文龙 | Rectangle muffler |
TWM329716U (en) * | 2007-09-21 | 2008-04-01 | Yao-Gan Chen | Noise reduction chest structure of a blower ventilation shaft |
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TW201144709A (en) | 2011-12-16 |
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