469748 經濟部智慧財產局員工消費合作社印製 A7 ____B7__ 五、發明說明（1 ) 技術範疇 本發明係關於振動激發器，且更特定地，係關於用在含 有共振板型聲音放射元件之擴音器上的激發器。 技藝背景 WO97/09842提出一種共振板型擴音器。該擴音器已成 爲大家所熟知的分散模式（distributed mode)或DM擴大 器。 大部份具有適當品質之此種擴音器是使用移動線圈或移 動磁鐵的激發器。已有人提出壓電激發器，但它在許多應 用方面無法提供送到振動板上足夠的功率，此問題在低頻 時尤其嚴重。 因此需要一種改良的激發器，不但能夠保有壓電激發器 的優點，而且可以減輕前述問題。 根據本發明，提供一種用於驅動彎曲波振動板之慣性激 發器，它包含 一平面元件， —固定在該平面元件上的質量體， 一用於連結到彎曲波振動板的連結區域，此連結區域與 該質量體間隔一段距離， 其特徵爲，該平面元件爲一含有一層電致壓縮材料的電 致伸縮彎曲板。 近來的研究成果已發展出改良的電致伸縮材料，可以利 用施加電壓使該材料伸展。特別是已寧能夠製造高純度的 欽酸錯幾說。 本紙張尺度適財關家標準（CN^^格咖χ视公楚〉 — 11 — — ^ — — 1— —— ι· — —--— — — 訂---------1 (諳先閱讀背面之注意事項再填寫本頁) 9 74 8 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（2 該等電致伸縮材料能夠傳遞比壓電材料更高的敏感度 (移動量表示成電壓的函數）^但仍保有壓電裝置僅需少量 零件數目的優點。 該壓電弯曲板可包含一導電的對立層（dectrically conductive counterlayer) ' —層伸展覆蓋該對立層之電致 伸縮材料及一個位在該層電致伸縮材料上與該對立層相反 的那一面的電極。 該導電對立層可爲金屬材料，或者其上面加有金屬電極 的任何材料。 另一種可行的作法是，該電致伸縮彎曲板可包含一第一 層電致伸縮材料、一第二層電致伸縮材料、一夹在該第一 層和第二層電致伸縮材料之間形成三明治結構的共用電極 層’-位在該第-層電致伸縮材料上與該共用層相反的那 -面的第-電極層及-位在該第：層電致㈣材料上與該 共用層相反的那一面的第二電極層。 該電致伸縮材料最好是由鈦酸鉛鎂叙組成。 可在H皮振動板上連結前述之激發器以激發該振動 板之彎曲波》 該電致伸縮寶曲板内可施予應力。如此可增加裝置的敏 感度（單位輸入電壓產生之聲音輸出），也同樣的增加裝置 的敏感度。 本發明的第二個重點爲i音器，該擴音器包含一塊能 夠支承f曲波㈣的振動板、—層直接結合於該振動板上 覆蓋該振動板-面積之電致伸縮材料'及一與該電致伸縮 -5- 本紙張尺度適用中國國家標準(CNS)A4 ^ (210 X 297 (諳先閱讀背面之注意事項再填寫本頁) 裝 *------—訂-------— ·線· 469 748 A7469748 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ____B7__ V. Description of the invention (1) Technical scope The present invention relates to a vibration exciter, and more specifically, to a loudspeaker for use with a resonant plate-type sound emitting element On the exciter. Technical background WO97 / 09842 proposes a resonant plate type loudspeaker. This loudspeaker has become known as a distributed mode or DM amplifier. Most of these loudspeakers of appropriate quality are exciters using moving coils or moving magnets. A piezoelectric exciter has been proposed, but it cannot provide sufficient power to the vibration plate in many applications, and this problem is particularly serious at low frequencies. Therefore, there is a need for an improved exciter that not only retains the advantages of a piezoelectric exciter but also alleviates the aforementioned problems. According to the present invention, there is provided an inertial exciter for driving a bending wave vibration plate, which comprises a planar element, a mass body fixed on the planar element, and a connection area for connecting to the bending wave vibration plate. The area is separated from the mass by a distance, and is characterized in that the planar element is an electrostrictive bent plate containing a layer of electrocompressive material. Recent research results have developed improved electrostrictive materials that can be stretched using applied voltage. In particular, Zining was able to produce high-purity cinnamic acid. The standard of this paper is suitable for financial and family care standards (CN ^^ 格柯 χ 视 公 楚) — 11 — — ^ — — 1 — — — — — — — — — Order --------- 1 (谙 Please read the precautions on the back before filling this page) 9 74 8 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (2 These electrostrictive materials can transmit higher sensitivity than piezoelectric materials (The amount of movement is expressed as a function of voltage) ^ but still retains the advantage that the piezoelectric device requires only a small number of parts. The piezoelectric bending plate can include a conductively opposed counterlayer (layer) that covers the opposite layer An electrostrictive material and an electrode located on the opposite side of the layer of electrostrictive material from the opposite layer. The conductive opposite layer may be a metallic material, or any material on which a metal electrode is added. Another possibility The method is that the electrostrictive bending plate may include a first layer of electrostrictive material, a second layer of electrostrictive material, and a sandwich structure formed between the first layer and the second layer of electrostrictive material. Common electrode layer A first electrode layer located on the opposite side of the first layer of the electrostrictive material and the common layer and a second electrode located on the opposite side of the first layer of the electrostrictive material and the common layer The electrode layer. The electrostrictive material is preferably composed of lead magnesium titanate. The aforementioned exciter can be connected to the H skin vibration plate to excite the bending wave of the vibration plate. Prestress. This can increase the sensitivity of the device (the sound output produced by a unit input voltage), and also increase the sensitivity of the device. The second focus of the present invention is the i-speaker, which contains a piece that can support f Qu Bo's vibrating plate and layer are directly bonded to the vibrating plate to cover the vibrating plate-area of an electrostrictive material 'and one with the electrostrictive-5- This paper size applies to Chinese National Standard (CNS) A4 ^ (210 X 297 (谙 Please read the notes on the back before filling in this page) Install * -------- Order --------- · Line · 469 748 A7
五、發明說明（3 ) 經濟部智慧財產局員工消費合作社印製 材料組成三明治結構的電極，因此電壓施加到電極上造成 該電致伸縮材料伸展而使振動板弯曲。 本發明第三個重點爲，一種產生聲音輸出之方法，包栝 提供前述之擴音器及供應一個由固定的補償電壓及一個小 的聲音訊號的和所構成的驅動訊號。 若干媒介可被用於將激發器接合到一振動的構材上，配 置上必須使得裝置的堅實部份與該構材相距—段間隔以便 其間有相對的移動β 該裝置可以是鈦酸鉛鎂鈮（ρμντ )的材料作成。該裝置 可爲圓盤狀。接合的媒介可配置在圓盤中心的位置且質量 體可固裝在該裝置的週圍。或者該圓盤狀裝置的週園邊界 可固定在要振動的構材上，且質量體可固裝在該裝置的中 心部^7 〇 可以使用彈性構材將質量體固定在該装置上。 前述裝置可裝在要振動之構材的反面並以一共同的質量 體連在一起以便以推/拉的模式操作。 本發明之另一重點爲一擴音器’該擴音器包含一振動板 型的共振構材，該構材形成一聲音放射器，該擴音器特徵 爲’其上連接前述之振動激發器用以使該發射器振動。 圖示簡單説明 本發明係利用圖解以舉例的方式加以説明，附圖中： 圖1爲振動激發器之第一個具體實施例； 圖2爲一構成本發明所述振動激發器一部份之弯曲元件 的實作圖； -6- 本紙張尺度適用令國國家標準（CNS)A4規格（210 χ 297公釐） J J I'-1---- ^ -------—訂—- -----1 (請先閱讀背面之注意事項再填寫本頁) 469 748 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（4 ) 圖3爲一彎曲元件另一個可行的實作圖； 圖4爲振動激發器之第二個具體實施例； 圖5爲振動激發器之第三個具體實施例； 圖6爲根據本發明之第四個具體實施例； 圖7所示爲一根據本發明之行動電話。 實現本發明之最佳模式 圖1所示爲一電致伸縮振動激發器1之具體實施例，其 中，一平面電致伸縮彎曲元件27之中央有一連結區域13 架在一個以堅硬發泡塑膠製成之輕質堅硬圓柱塊21的一 端’此圓柱塊2 1堅實地固定（例如以粘著劑）在一聲音發 射器振動板3中的一個孔洞23中。 該圓柱塊21的一端突出於振動板3的表面使得元件27的 週圍區域31自由並地懸在振動板3的旁邊11 一個以例如無 機聚氣乙烯製成的塑膠環25作爲質量體堅實地固定在元 件27的周圍區域31。 該平面電致伸縮彎曲元件27電致伸縮彎材料。電致伸 縮材料在電壓施加時會膨賬及收縮，且慣性能量轉換器 (transducer)需要該平面元件彎曲。圖2所示爲一種達成寶 曲的方法。該平面元件27包含一金屬板41作爲對立層。 一層例如鈦酸鉛鎂鈮之電致伸縮材料43配置在金屬板41 上’且一電極45配置在該層電致伸縮材料43上與該對立 層41相反的那一面。 當電壓施加在電極45和金屬板41之間，該層電致伸縮 材料會沿一個軸膨脹（且沿其它軸收縮）^此一膨脹相對於 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） „ 1 —i t-----1 I I ---------^^量 (請先閲讀背面之沒意事項再填寫本頁) 469 748 A7 B7V. Description of the invention (3) The electrodes of the sandwich structure are printed by materials printed by the employees' cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, so the application of voltage to the electrodes causes the electrostrictive material to stretch and bend the vibration plate. The third important point of the present invention is a method for generating sound output, including providing the aforementioned loudspeaker and supplying a driving signal composed of the sum of a fixed compensation voltage and a small sound signal. Several media can be used to join the exciter to a vibrating structure. The configuration must be such that the solid part of the device is separated from the structure by a space so that there is relative movement between them. The device can be lead titanate magnesium niobium (Ρμντ). The device may be disc-shaped. The bonded medium can be placed in the center of the disc and the mass can be fixed around the device. Or the peripheral boundary of the disc-shaped device can be fixed on the structure to be vibrated, and the mass can be fixed to the center of the device ^ 7 〇 The elastic body can be used to fix the mass on the device. The aforementioned device may be mounted on the reverse side of the member to be vibrated and connected together with a common mass to operate in a push / pull mode. Another important point of the present invention is a loudspeaker. The loudspeaker includes a vibrating plate-type resonance structure. The structure forms a sound radiator. The loudspeaker is characterized in that the loudspeaker is connected to the vibration exciter. Make the transmitter vibrate. The diagram briefly illustrates the present invention by way of illustration. The figures are as follows: Figure 1 is a first specific embodiment of a vibration exciter; Figure 2 is a part of a vibration exciter according to the present invention. The actual drawing of the bending element; -6- This paper size is applicable to the national standard (CNS) A4 specification (210 χ 297 mm) JJ I'-1 ---- ^ -------— order— ------ 1 (Please read the notes on the back before filling out this page) 469 748 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (4) Figure 3 shows a bending element and another possibility FIG. 4 is a second specific embodiment of the vibration exciter; FIG. 5 is a third specific embodiment of the vibration exciter; FIG. 6 is a fourth specific embodiment according to the present invention; Shown as a mobile phone according to the invention. The best mode for realizing the present invention FIG. 1 shows a specific embodiment of an electrostrictive vibration exciter 1, in which a planar electrostrictive bending element 27 has a connection region 13 in the center of a rigid foamed plastic One end of the light and rigid cylindrical block 21 is formed. This cylindrical block 21 is firmly fixed (for example, with an adhesive) in a hole 23 in a sound transmitter vibration plate 3. One end of the cylindrical block 21 protrudes from the surface of the vibration plate 3 so that the surrounding area 31 of the element 27 is freely and hung beside the vibration plate 3 11 A plastic ring 25 made of, for example, inorganic polyethylene is firmly fixed as a mass In the surrounding area 31 of the element 27. The planar electrostrictive bending element 27 is an electrostrictive bending material. Electrostrictive materials expand and contract when a voltage is applied, and the inertial energy converter requires the planar element to bend. Figure 2 shows one way to achieve this. The planar element 27 includes a metal plate 41 as an opposite layer. A layer of electrostrictive material 43 such as lead magnesium niobium titanate is disposed on the metal plate 41 'and an electrode 45 is disposed on the side of the layer of electrostrictive material 43 opposite to the opposite layer 41. When a voltage is applied between the electrode 45 and the metal plate 41, the layer of electrostrictive material expands along one axis (and shrinks along the other axis) ^ This expansion is applicable to the Chinese National Standard (CNS) A4 specification relative to the paper size ( 210 X 297 mm) „1 —i t ----- 1 II --------- ^^ (please read the unintentional matter on the back before filling this page) 469 748 A7 B7
第891〇48丨2號專利申請案 中文說明書修正頁(90年9月） 五、發明説明（5 ) 固定的對立層41平面元件27彎曲。 必須說明’在該電致伸縮效應中，電致伸縮材料的膨膜 里和電場的平方成正比。因&，所施加電壓的正負號不必 加以考慮，且材料只會沿其軸向伸展，同時沿垂直軸收 縮。當電壓消失，該平面元件由於金屬對立層4丨的彈性而 彈回原位。 當能量轉換器被一電子訊號以聲音頻率激發時，裝置27 會振動並發動彎曲波到振動板3中造成該振動板共振並發 出聲音輸出。可用一個圓頂外殼29把激發器丨蓋起來以保 護激發器，該圓頂外殼固定在振動板3上。 圖3所示為另一種型式的電致伸縮彎曲元件27 β 一第一 電致伸縮層5 1及一第二電致伸縮層53央住一電極55形成 三明治結構。第一和第二外側電極5 7 ' 5 9分別配置在第 一和第二電致伸縮層5 1、5 3的外侧。 此種配置之下’隨著電壓先施加於第一電致伸縮層再施 加於弟二電致伸縮層’諸彎曲板會先朝一個方向彎曲再朝 另一個方向彆曲。可利用在該第一外側電極串連一第一個 二極體61及在該第二外側電極63 _連第二個二極體，以 單一訊號達到前述的彎曲作用，該第一和第二個二極體具 有相反6¾極性。 圖4所示之電致伸縮振動激發器9包含一圓盤狀的陶瓷裝 置2 7 (例如PMNT )，裝置27利用其週圍的區域31固裝在 振動板3的表面上（例如使用粘著劑）’其中央部位自由地 懸在振動板中的一個凹穴33的裝置27僅週圍區域與振 -8 - 本紙張尺度適用中國@家標準(CNS) A4规格(21〇><297公釐) 4 6 9 7令氣刪2號專利申請案 t文說明書修正頁(90年9月）广 A7 一B7 五、發明説明（6 ) |90Ml^25s 補充j 動板接觸。質量體25 (例如塑膠材質）裝在裝置27的中 央’其間插入以彈性材料作成（例如彈性高分予聚合物）的 防振墊3 5 〇 因此，施加一聲音訊號到該裝置上將造成該裝置振動而 發動彎曲波到振動板中。激發器的驅動效應由於裝在裝置 2 7上的質量體2 5增加了慣性而得以增強。 囷5之電致伸縮振動激發器配置類似圖$。唯一的不同點 疋，在此具體實施例中，於貫穿振動板3之洞穴3 3兩側裝 了一對電致彎曲元件27可以用推/拉的模式操作。在此配 置中，兩個裝置27的中心以一個共用質量體25連在— 起。每一裝置27和質量體25之間裝有彈性防振墊β 在另一具體實施例中，可在振動板的一面或兩面都粘上 一ΡΜΝΤ元件，如圖6所示。此例中，該振動板3本身充當 對立層的作用。第一電極71配置在振動板3上。—層電致 伸縮材料73配置在該第一電極上，第二電極乃配置在該 電致伸縮材料73上。 電致伸縮材料的位移和施加電場之間有平方定律的關 係〜位移和電場的平方成正比。因此，在線性反應方面， 需要作一些修正。 取簡早的修正方式是施加一直流偏壓到輸入訊號上。 .可以使用預修正電路結構二極體（prec_cti〇n 汁 diodes ) ° 述兩種方法《$兩者可連同對施加於該電致伸縮激 發器之訊號作類比或數位訊號處理一起使用a _____ * 9 - 用中固9家两 經濟部智慧財產局員工消費合作社印製 469 748 A7 _____ R7____五、發明說明（7 ) 電致伸縮激發器在行動電話中有特別的應用（圖7)。一 個利用電致伸縮激發器（1)驅動的擴音器位在電話（81)中 當正常手持使用時鄰近使用者耳朵的位置。 在此種正擴音器鄭近耳朵的正常手持操作中，可以一大 的直流電補償及一小的交流電訊號，利用接收器（8 3 )操 作該激發器，製造可以接受的聲音品質。 然而’使用行動電話亦可在10%失眞的情況下在1 〇公分 處產生80db的聲音：在這種使用模式中，可以將行動電話 放在例如書桌上’讓在該書桌座位的使用者能夠聽到。這 可以用較大交流電訊號及維持原來的直流電補償，由接收 器驅動激發器達到》 同樣的能量轉換器可用於鐘鳴器/蜂鳴器。在此類應用 上，失眞是無關緊要的，因此可直接以一來自鐘鳴器85 之平穩的較大交流電訊號驅動該能量轉換器。 當然，該激發器亦可單純地作警報聲裝置使用；此情況 下，失眞也是無關緊要的。 前述各應用中使用電致伸縮材料的優點是它所產生的擴 音器敏感度較大。這是因爲與迄今尚在使用之壓電效應比 較之下，電致伸縮效應的大小有增加的緣故。 另一種可能的應用是利用電致伸縮激發器解調訊號以發 揮其非線性特性。例如，高頻訊號可以利用聲音訊號以較 低語音頻率加以調變預備a 當使用此訊號驅動電致伸縮激發器時，其反應的非線性 特性發生解調語音頻率訊號的作用。因此，調變過的訊號 -10 - (請先間讀背面之注意事項再填寫本頁) 裝------ -- 訂----— II--線. 本紙張尺度適用t园國家標準（CNS)A4規格（210 X 297公釐） 469 748 第89104812號專利申請案 中文說明書修正頁(90年9月） A7 _ __B7Patent Application No. 891048 丨 2 Revised Page of Chinese Specification (September 1990) V. Description of Invention (5) The flat element 27 of the fixed opposing layer 41 is bent. It must be explained that in this electrostrictive effect, the inside of the expanded film of the electrostrictive material is proportional to the square of the electric field. Due to & the sign of the applied voltage need not be taken into account, and the material will only stretch along its axis, while shrinking along the vertical axis. When the voltage disappears, the planar element springs back to its original position due to the elasticity of the metal opposing layer 4 丨. When the energy converter is excited by an electronic signal at a sound frequency, the device 27 will vibrate and launch a bending wave into the vibration plate 3, causing the vibration plate to resonate and produce a sound output. The exciter can be covered by a dome casing 29 to protect the exciter, and the dome casing is fixed to the vibration plate 3. Fig. 3 shows another type of electrostrictive bending element 27 β-a first electrostrictive layer 51 and a second electrostrictive layer 53 sandwiching an electrode 55 to form a sandwich structure. The first and second outer electrodes 5 7 ′ 5 9 are disposed outside the first and second electrostrictive layers 5 1 and 5 3, respectively. In this configuration, as the voltage is first applied to the first electrostrictive layer and then to the second electrostrictive layer, the curved plates are bent in one direction and then bent in the other direction. A first diode 61 can be connected in series to the first outer electrode and a second diode 63 to the second outer electrode 63 to achieve the aforementioned bending effect with a single signal. The first and second Each diode has opposite polarity. The electrostrictive vibration exciter 9 shown in FIG. 4 includes a disc-shaped ceramic device 27 (such as PMNT). The device 27 is fixed on the surface of the vibration plate 3 by using the surrounding area 31 (for example, using an adhesive). ） 'The device 27 whose center is freely suspended in a cavity 33 in the vibration plate is only around the area and vibrating-8-This paper size is applicable to China @ 家 标准 (CNS) A4 specification (21〇 > < 297) (Centi) 4 6 9 7 Ling Qi deletes the patent application No. 2 patent document t revised document manual (September 90) Guang A7-B7 V. Invention description (6) | 90Ml ^ 25s Supplementary moving plate contact. The mass body 25 (for example, plastic material) is installed in the center of the device 27, and an anti-vibration pad made of an elastic material (for example, a high elasticity polymer) is inserted between the two. Therefore, applying a sound signal to the device will cause the The device vibrates to launch a bending wave into the vibration plate. The driving effect of the exciter is enhanced by the inertia of the mass body 25 mounted on the device 27. The configuration of 囷 5's electrostrictive vibration exciter is similar to Figure $. The only difference 疋 In this specific embodiment, a pair of electro-curved elements 27 are installed on both sides of the cavity 33 which penetrates the vibration plate 3, and can be operated in a push / pull mode. In this configuration, the centers of the two devices 27 are connected together with a common mass 25. An elastic anti-vibration pad β is installed between each device 27 and the mass body 25. In another specific embodiment, a PMNT element can be adhered to one or both sides of the vibration plate, as shown in FIG. In this example, the vibration plate 3 itself functions as an opposing layer. The first electrode 71 is disposed on the vibration plate 3. A layer of electrostrictive material 73 is disposed on the first electrode, and a second electrode is disposed on the electrostrictive material 73. The relationship between the displacement of an electrostrictive material and the applied electric field has a square law ~ displacement is proportional to the square of the electric field. Therefore, some corrections are needed in terms of linear response. The simple correction method is to apply a DC bias to the input signal. Pre-corrected circuit structure diodes (prec_cti〇n juice diodes) can be used. The two methods described above can be used together with analog or digital signal processing on the signal applied to the electrostrictive exciter a _____ * 9-Printed with 9 employees' cooperatives of the Intellectual Property Bureau of the Ministry of Economy and the Ministry of Economic Affairs 469 748 A7 _____ R7____ V. Description of the invention (7) The electrostrictive exciter has a special application in mobile phones (Figure 7). A loudspeaker driven by an electrostrictive exciter (1) is located in the telephone (81) adjacent to the user's ear when used in a normal hand-held manner. In the normal hand-held operation of this positive loudspeaker Zheng Jin's ear, a large direct current compensation and a small alternating current signal can be used to operate the exciter using a receiver (83) to produce acceptable sound quality. However, 'Using a mobile phone can also produce 80db sound at 10 cm at 10% loss: In this use mode, the mobile phone can be placed on a desk, for example', and the user seated at the desk Can hear. This can be compensated with a larger AC signal and maintaining the original DC current, which is achieved by the receiver driving the exciter. The same energy converter can be used for the bell / buzzer. In such applications, loss of power is irrelevant, so the energy converter can be driven directly with a smooth, large AC signal from a clock chime 85. Of course, the exciter can also be used simply as an alarm sound device; in this case, loss of sound is irrelevant. The advantage of using an electrostrictive material in the aforementioned applications is that the microphone it produces is more sensitive. This is because the magnitude of the electrostrictive effect is increased compared with the piezoelectric effect that has been used so far. Another possible application is the use of an electrostrictive exciter to demodulate a signal to exert its non-linear characteristics. For example, high-frequency signals can be modulated at a lower voice frequency using sound signals.a When this signal is used to drive an electrostrictive exciter, the non-linear characteristics of its response demodulate the voice frequency signal. Therefore, the modulated signal -10-(please read the precautions on the back before filling this page). ------------ Order -------- II--line. National Standard (CNS) A4 Specification (210 X 297 mm) 469 748 Patent Application No. 89104812 Revised Chinese Manual (September 1990) A7 _ __B7
五、發明説明（8~) P 不需要任何其它元件即可產生一磬立 斗句输出。在志立拖‘ 使用此來發揮低電阻，因為那些音頰在—此浐a頻·^下 頻會比低音頻來的容易驅動激於器。i 境下，高音 變適用，因為它產生很少的旁』帶。^凋變遠比頻率調 X業上的谪用性 而且使用上敦 本發明之振動激發器相對而言構造簡單 果很好。 皂件符號說明 1 電致伸縮振動激發器 3 聲音發射器振動板 9 電致伸縮振動激發器 1 3電致伸縮·寶曲元件之 連結區塊 21輕質堅硬圓柱塊 2 3孔洞 25環或質量體 27電致伸縮彎曲元件 2 9圓頂外殼 31彎曲元件之週圍區域 3 3凹穴 3 5防振墊 4 1金屬板 4 3電致伸縮材料 45電極 51，53第一及第二電敌 伸縮層 5 5電極 5 7，5 9第一及第二外倒 電極 61第一二極體 6 3第二二極體 71;75第一及第二電極 73電致伸縮材料之層 8 1電話 83接收器 8 5振铃（鐘鳴）器 -11 - 本紙張尺度適用中國國家揉準(CNS) A4規格(210X 297公爱)V. Description of the invention (8 ~) P does not require any other components to produce a stand-up fighting sentence output. In Zhili Tow ’s use this to play low resistance, because those cheeks are here-this 浐 a frequency · ^ lower frequency will drive the exciter easier than the low frequency. In the i environment, treble change is applicable because it produces very few sidebands. ^ Fade is much more useful than frequency tuning in the industry, and the use of the vibration exciter of the present invention is relatively simple and has a good structure. Explanation of symbols for soap parts 1 Electrostrictive vibration exciter 3 Sound transmitter vibration plate 9 Electrostrictive vibration exciter 1 3 Electrostrictive / Polygon element connection block 21 Light and hard cylindrical block 2 3 Holes 25 rings or mass Body 27 Electrostrictive bending element 2 9 Dome housing 31 Surrounding area of the bending element 3 3 Cavity 3 5 Anti-vibration pad 4 1 Metal plate 4 3 Electrostrictive material 45 Electrode 51, 53 First and second electric enemy telescopic Layer 5 5 electrode 5 7, 5 9 first and second outer inverted electrode 61 first diode 6 3 second diode 71; 75 first and second electrode 73 layer of electrostrictive material 8 1 telephone 83 Receiver 8 5 Ringer (Zhongming) -11-This paper size applies to China National Standard (CNS) A4 (210X 297 public love)