_案號87116959_ 年月日 修正_ 五、發明說明（1) 發明領域 本發明係關於揚聲器，尤其關於特別適用以一圖晝之； 式顯現之揚聲器，但並不全然指須懸掛於牆上之揚聲器。 發明背景 平面揚聲器已問世多年，如無靜電揚聲器。然而，此類 揚聲器常需大而突兀，才可產生令人滿意之音級。不僅如 此，此類揚聲器通常昂貴，且具有較小之音頻響應及聲音 分布圖形。 各種不同種類之平面、牆上安裝揚聲器已經設計成型，-但皆再次同樣地面對較低之頻率響應及立體聲性能。 發明概述 （ 依據本發明之一方面，在此提供一揚聲器，包括一大致 上平坦之第一隔膜，至少正面可因振動而放射聲波，並包 括一驅動器元件，可藉由一可變電流動作，以產生一施加 於第一隔膜上之可變力，此力會跟隨著可變電流而變，其 特徵為驅動器元件於一或多個預設位置連接至第一隔膜， 或安裝於一結構，此結構可於一或多個預設位置依次連接 至隔膜上β 依據本發明之另一方面，在此提供一揚聲器，包括一大 致上為剛體之外圍框架，此框架具有一正面與一背面，該 第一隔膜向右延伸通過正面，且一背面隔膜向右延伸通過< 背面，藉此使揚聲器内部空間大致上受到包圍，並包括一 驅動器元件，可藉由一可變電流動作，驅動器元件位於該 空間内遠離框架之位置，並連接至該二隔膜，驅動器元件 將藉此施加對應可變電流之可變力至該隔膜，並引起至少_Case No. 87116959_ Year, month, and day of revision_ V. Description of the invention (1) Field of the invention The present invention relates to loudspeakers, and in particular, to loudspeakers that are particularly suitable for use as a daytime display; speaker. BACKGROUND OF THE INVENTION Flat speakers have been around for many years, such as static-free speakers. However, such speakers often need to be large and obtrusive to produce a satisfactory sound level. Not only that, such speakers are often expensive and have small audio response and sound distribution patterns. Various types of flat and wall-mounted speakers have been designed and formed, but once again face the same low frequency response and stereo performance. SUMMARY OF THE INVENTION (According to one aspect of the present invention, there is provided a loudspeaker including a substantially flat first diaphragm, at least the front side can emit sound waves due to vibration, and includes a driver element, which can be operated by a variable current. In order to generate a variable force applied to the first diaphragm, the force will change with the variable current, which is characterized in that the driver element is connected to the first diaphragm at one or more preset positions, or is mounted on a structure. This structure can be sequentially connected to the diaphragm at one or more preset positions. According to another aspect of the present invention, a speaker is provided here, including a substantially rigid peripheral frame. The frame has a front surface and a back surface. The first diaphragm extends to the right through the front, and a back diaphragm extends to the right through the < back, thereby substantially enclosing the speaker's internal space, and includes a driver element that can be actuated by a variable current. Located in the space away from the frame and connected to the two diaphragms, the driver element will thereby apply a variable force corresponding to a variable current to the diaphragm And causing at least
O:\55\55358.ptc 第5頁 2000.08. 04. 005 409483 案號 87116959 曰 修正 五、發明說明（2) 該隔膜之一伸縮運動，及自揚聲器向外之隔膜正面發射一. 聲波訊號。 便利地，該二隔膜皆具伸縮性，在此情況下，驅動器最 好使隔膜動作於雙極模式下，亦即同時向外移動或向内移 動。 另一種選擇為該隔膜之一具伸縮性，另一隔膜則為剛 體 具伸縮性隔膜最好由雙層聚丙烯共聚合體製成。 便利地，揚聲器為方形，每一邊約4 0 0釐米長，3 0釐米 厚。具優點地，驅動器元件具電磁性。 揚聲器最好適於以一圖畫的方式懸掛於一牆上，且可與 牆隔開1 0至1 5釐米。 附圖簡述 在此僅藉由一例與參照伴隨附圖來描述本發明之一實 例，其中： 圖1為依據本發明之揚聲器之前視圖， 圊2為圖1中，在一垂直平面上沿線Π-Π之斷面視圖， 圖3顯示另一實例之後視與側視圖， 圖4為揚聲器一組件之部分立體圖， 圖5為一進一步實例之斷面視圖， 圖6為圊5中之實例之後視圖，與 圖7為圖4中之組件之後視圖。 元件參考符號表 10 平面揚聲器 11 方形外圍框架 1 2 線或纜 1 3 環或其它扣件O: \ 55 \ 55358.ptc Page 5 2000.08. 04. 005 409483 Case No. 87116959 Amendment V. Description of the invention (2) One of the diaphragms telescopically moves and emits a sound wave signal from the speaker to the front of the diaphragm. Conveniently, the two diaphragms are both stretchable. In this case, the driver is best to make the diaphragm operate in a bipolar mode, that is, to move outward or inward at the same time. Another option is that one of the diaphragms is stretchable and the other is a rigid body. The stretchable diaphragm is preferably made of a two-layer polypropylene copolymer. Conveniently, the speakers are square, with each side approximately 400 cm long and 30 cm thick. Advantageously, the driver element is electromagnetic. The speaker is preferably adapted to be hung on a wall in the form of a picture, and may be separated from the wall by 10 to 15 cm. Brief Description of the Drawings An example of the present invention is described here by way of example and with reference to the accompanying drawings, in which: FIG. 1 is a front view of a speaker according to the present invention, and 圊 2 is a vertical plane in FIG. 1 along a line Π -Π sectional view, Fig. 3 shows a rear view and a side view of another example, Fig. 4 is a partial perspective view of a speaker assembly, Fig. 5 is a sectional view of a further example, and Fig. 6 is a rear view of the example in Fig. 5 , And FIG. 7 is a rear view of the components in FIG. 4. Component reference symbol table 10 Flat speaker 11 Square outer frame 1 2 Wire or cable 1 3 Ring or other fastener
O:\55\55358.ptc 第6頁 2000. 08. 04. 006 409483 案號 87116959 Λ_η 修正 五、發明說明（3) 14 前 隔 膜 15 後 隔 膜 16 驅 動 器 元 件 17 磁 鐵 18 共 同 作 動 之 音圈 19 導 線 20 端 點 21 平 板 22 柱 子 23 革 膜 之 白 然模式 25 前 層 26 後 層 27 縱 壁 28 剛 性 後 平 板 29 球 性 帽 30 孔 洞 或 埠 31 質 量 增 加 材 料 32 吸 音 材 料 較佳實例之詳細說明 在附圖中，一平面揚聲器10包括一方形外圍框架11 ，簡 便地由中密度纖維板製成。框架11之每一外邊簡便地為 4 0 0釐米長。框架由粘著至框架1 1頂端之環或其他扣件1 3 之線或纜1 2所懸掛。 特別如圖2所示，揚聲器10之正面覆蓋一前隔膜14，前 隔膜1 4藉由一適當之粘著劑，沿邊緣粘著並密封至框架1 1 之正面。同樣地，揚聲器10之背面覆蓋一後隔膜15，後隔 膜1 5藉由一粘著劑粘著並密封至框架1 1之背面。如此，揚 聲器1 0之内部構成一密封箱。典型上，對一 4 0 0釐米方形 揚聲器而言，隔膜14之前後面距離為30釐米。 目前已經發現，一作為前後隔膜14、15之合適材料為雙 層薄片，係以一聚丙烯共聚合體製成，約3釐米厚，每平 方米約為5 0 0克或更少。薄片最好具凹痕，可承受28 MPa 或更大之拉伸強度，並具67或更大之硬度值。材料本身最 好經一電暈放電表面處理，以幫助塗料或壁紙粘著至隔膜O: \ 55 \ 55358.ptc Page 6. 20 End point 21 Slab 22 Pillar 23 White film of leather membrane 25 Front layer 26 Rear layer 27 Vertical wall 28 Rigid rear plate 29 Spherical cap 30 Hole or port 31 Mass-increasing material 32 A detailed description of a preferred example of sound-absorbing material is attached In the figure, a flat speaker 10 includes a square peripheral frame 11 and is simply made of a medium-density fiberboard. Each outer side of the frame 11 is simply 400 cm long. The frame is suspended by a loop or cable 12 attached to a ring or other fastener 1 3 to the top of the frame 1 1. As shown in FIG. 2 in particular, the front face of the speaker 10 is covered with a front diaphragm 14, and the front diaphragm 14 is adhered and sealed to the front face of the frame 1 1 by an appropriate adhesive along the edges. Similarly, the rear surface of the speaker 10 is covered with a rear membrane 15, and the rear membrane 15 is adhered and sealed to the rear surface of the frame 11 with an adhesive. Thus, the inside of the speaker 10 constitutes a sealed box. Typically, for a 400 cm square speaker, the distance between the front and back of the diaphragm 14 is 30 cm. It has been found that a suitable material for the front and rear membranes 14, 15 is a double-layer sheet made of a polypropylene copolymer, about 3 cm thick, and about 500 grams per square meter or less. The flakes are preferably notched, can withstand a tensile strength of 28 MPa or more, and have a hardness value of 67 or more. The material itself is best treated with a corona discharge surface to help the paint or wallpaper adhere to the separator
O:\55\55358.ptc 第7頁 2000. 08. 04. 007 409483 _案號87116959_年月曰 修正_ 五、發明說明（4) ' 14、15之外表面，以及幫助隔膜14、15之内表面粘著至框 架1 1。此薄片最好為一積層薄片，具有一發泡核心、皺摺 薄片或其他材料。 一驅動器元件16定位於鄰接隔膜14、15之中心。此驅動 器元件類似習用於錐狀揚聲器中之驅動器元件，並包括一 磁鐵17，可為一永久磁鐵或一電磁鐵，且包括一共同作動 之音圈18。音圈18具有一般之繞線，藉由導線19連接至揚 聲器1 0背後之端點2 0。磁鐵1 7可藉由一如粘著劑緊定至後 隔膜15之内表面，且音圈18緊定至前隔膜14之内表面。驅 動器元件1 6之尺寸，以及前後隔膜1 4、1 5間之距離係經設 計，使音圈1 8處於相對磁鐵1 7之正確操作位置，並適當地( 定心於其中。 視揚聲器1 0音質的需要，其内面可至少部分地充填纖維 或其他吸音材料，或可保持中空。.同樣地，一或多個埠或 開口可通過框架11或隔膜14、15。 雖然揚聲器1 0顯示為方形，但亦可為圓形、橢圓形、矩 形、多邊形或/且其他合適之形狀。假使需要一個以上之 驅動器元件1 6，則驅動器元件可設於揚聲器1 0中適當之位 置。 在另一實例中，前隔膜1 4或後隔膜1 5大致上可為剛性材 料。進一步地，磁鐵17可配合至前隔膜14，且音圈18配合（ 至後隔膜1 5。 為了某些目的，可能最好提供兩個同軸音圏18，每一個 緊定至隔膜14、15之一，並與一中心懸吊之磁鐵17共同作 動。相反地，兩磁鐵17可設於隔膜14、15上，並與一中心O: \ 55 \ 55358.ptc Page 7 2000. 08. 04. 007 409483 _ case number 87116959_ year month revision _5. Description of the invention (4) '14, 15 and other surfaces, and help diaphragms 14, 15 The inner surface is adhered to the frame 11. The sheet is preferably a laminated sheet having a foamed core, a corrugated sheet or other material. A driver element 16 is positioned adjacent the center of the diaphragms 14,15. The driver element is similar to a driver element conventionally used in a cone speaker, and includes a magnet 17, which may be a permanent magnet or an electromagnet, and includes a voice coil 18 acting together. The voice coil 18 has a general winding, and is connected to a terminal 20 behind the speaker 10 through a wire 19. The magnet 17 can be fastened to the inner surface of the rear diaphragm 15 by an adhesive, and the voice coil 18 can be fastened to the inner surface of the front diaphragm 14. The dimensions of the driver element 16 and the distance between the front and rear diaphragms 14 and 15 are designed so that the voice coil 18 is in the correct operating position relative to the magnet 17 and is appropriately centered in it. The speaker 10 For the needs of sound quality, the inner surface can be at least partially filled with fiber or other sound-absorbing materials, or it can be kept hollow. Similarly, one or more ports or openings can pass through the frame 11 or the diaphragm 14, 15. Although the speaker 10 is shown as a square , But can also be circular, oval, rectangular, polygonal, and / or other suitable shapes. If more than one driver element 16 is needed, the driver element can be placed in a suitable position in the speaker 10. In another example In this case, the front diaphragm 14 or the rear diaphragm 15 may be a substantially rigid material. Further, the magnet 17 may be fitted to the front diaphragm 14 and the voice coil 18 may be fitted (to the rear diaphragm 15. For some purposes, it may be best Two coaxial sound bars 18 are provided, each of which is fastened to one of the diaphragms 14 and 15 and cooperates with a centrally suspended magnet 17. Conversely, the two magnets 17 can be provided on the diaphragms 14 and 15 and be connected with one center
O:\55\55358.ptc 第8頁 2000. 08. 04. 008 409483 _案號87116959_年月曰 修正_ 五、發明說明（5) 懸吊之音圈1 8共同作動。 每一隔膜14、15之一表面可輕微地皺摺而另一表面亦非 平坦，其可具皺摺或彎曲，以提供揚聲器1 〇 —修正之聲波 性能8 圖3中，框架1 1與後隔膜1 5已被刪除。磁鐵1 7安裝於一 平板21上，平板2 1則安裝於隔膜14之柱子22上。柱子 2 2位於隔臈1 4上仔細預選之位置，使其於任一自然模式下 不至於妨礙隔膜之伸縮性，如線2 3所示。磁鐵1 7可安裝於 平板21與隔膜14間，或如圖所示安裝於平板21之背面。 圖3所示之揚聲器可自隔膜之頂緣，或自平板21或柱子 2 2加以懸吊。 （ 圖4顯示前隔膜1 4之一較佳結構，包含一約3 - 5釐米厚整 合之聚乙烯突出，並具有前後層25、26，藉由連續之縱壁 2 7接合，其間則為空氣室。藉由此結構，隔膜1 4之材料為 非均向性，並具有一縱向之彎曲強度，典型上約可為橫向 彎西強度之兩倍。如此，此材料特別適用於矩形揚聲器之 結構，例如2 0 0釐米X 1 0 0釐米之揚聲器。 圖5顯示一揚聲器，具有一約1 2釐米厚定製木質剛性後 平板28，並有一磁鐵17緊定於其中心。框架11保持前隔膜 14於距離平板28之正面約3-5釐米之距離。音圈18則藉由 緊定於隔膜1 4之一中心孔，保持於磁鐵1 7之間隙中。此孔（ 藉由一緊定於音圈18中之球形帽29之凹部密封。 為了允許隔膜14進行預設之運動，平板28具有一列孔洞 或埠3 0通過其中埠3 0之尺寸與位置必須謹慎地選擇，以 自揚聲器10獲致一平滑之頻率響應。O: \ 55 \ 55358.ptc Page 8 2000. 08. 04. 008 409483 _ Case No. 87116959_ Year Month Amendment _5. Description of the invention (5) The suspension voice coil 18 operates together. One surface of each of the diaphragms 14 and 15 may be slightly wrinkled and the other surface may not be flat. It may be wrinkled or bent to provide a speaker 10—corrected sound wave performance 8 In FIG. 3, the frame 11 and the rear Diaphragm 1 5 has been removed. The magnet 17 is mounted on a plate 21, and the plate 21 is mounted on a pillar 22 of the diaphragm 14. The pillars 2 2 are carefully preselected on the partitions 14 so that they do not hinder the elasticity of the diaphragm in any natural mode, as shown by line 2 3. The magnet 17 can be installed between the plate 21 and the diaphragm 14, or as shown in the figure. The loudspeaker shown in Fig. 3 can be suspended from the top edge of the diaphragm, or from the flat plate 21 or the post 22. (Figure 4 shows one of the preferred structures of the front diaphragm 14, which includes an integrated polyethylene protrusion of about 3 to 5 cm thick, and has front and rear layers 25, 26, joined by continuous vertical walls 27, with air in between. With this structure, the material of the diaphragm 14 is anisotropic, and has a longitudinal bending strength, which can typically be about twice the strength of the lateral bending west. In this way, this material is particularly suitable for the structure of rectangular speakers For example, a speaker of 200 cm x 100 cm. Figure 5 shows a speaker with a custom wood rigid rear plate 28 of about 12 cm thick, and a magnet 17 fixed at its center. The frame 11 holds the front diaphragm 14 is at a distance of about 3-5 cm from the front of the flat plate 28. The voice coil 18 is held in the gap of the magnet 17 by being fastened to a central hole of the diaphragm 14. This hole (by a tightly fixed at The recess of the spherical cap 29 in the voice coil 18 is sealed. In order to allow the diaphragm 14 to perform a preset movement, the plate 28 has a row of holes or ports 30 through which the size and position of the port 30 must be carefully selected to obtain from the speaker 10 A smooth frequency response.
O:\55\55358.ptc 第 9 頁 2000.08.04.009 _魏9絲备959 年月曰__ 五、發明說明（6) · 頻率響應曲線之另一種或額外修正，可藉由粘著質量_ 加材料3 1來獲得，如圖7所示11合適之材料為遞青薄片， 上有金屬或礦物質微粒。 頻率性能之進一步調整，可藉由粘著吸音材料3 2至隔膜 14或平板28之正面獲得，如圖7所示。電子訊號至音圈18 之供給，係簡便地透過粘著至隔膜1 4 —面之銅箔帶來完 成。O: \ 55 \ 55358.ptc Page 9 2000.08.04.009 _Wei 9Sibei 959 __ V. Description of the invention (6) · Another or additional correction of the frequency response curve can be obtained by the adhesion quality_ It is obtained by adding material 31, as shown in FIG. 11. A suitable material is a blue-green sheet with metal or mineral particles on it. Further adjustment of the frequency performance can be obtained by adhering the sound absorbing material 32 to the front face of the diaphragm 14 or the flat plate 28, as shown in FIG. The supply of the electronic signal to the voice coil 18 is simply accomplished through a copper foil that is adhered to the surface of the diaphragm 1 4.
O:\55\55358.ptc 第10頁 2000.08. 04.010O: \ 55 \ 55358.ptc Page 10 2000.08. 04.010
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ330777ANZ330777A (en) | 1998-06-22 | 1998-06-22 | Loudspeaker with a planar diaphragm having a bending strength along one axis which is greater that along a second axis perpendicular to the first axis |
| NZ33232898 | 1998-10-13 |
| Publication Number | Publication Date |
|---|---|
| TW409483Btrue TW409483B (en) | 2000-10-21 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW87116959ATW409483B (en) | 1998-06-22 | 1998-10-13 | Loudspeakers |
| Country | Link |
|---|---|
| TW (1) | TW409483B (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent |