201018252 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種具有電聲致動器之電子裝置，更特 別有關於一種具有駐電式電聲致動器之電子裝置。 【先前技術】 揚聲器（loudspeaker)是一種能夠發出聲音之裝置，其 發聲之原理是利用電信號來使振膜振動以產生聲音，目前 ，廣泛地應用在行動電話、個人數位助理器及筆記型電 專需要發聲之電子裝置上。 傳統之揚聲器係為動圈式（dynamic)揚聲器，其係利用 磁鐵吸引通電之線圈，來使與線圈連接之振膜產生振動以 發出聲音。然而，上述之動圈式揚聲器雖可產生报好的音 :’但其因音腔需要佔有一定的空間，厚度始終無法縮小， 虽應用在行動電話、個人數位助理器及筆記型電腦等可攜 式電子裝置上時，該產品之厚度便無法縮小。 ❿ 【發明内容】 本發明提供-種具有駐電式電聲致動器之電子裝置，其 «•式電聲致動器之厚度遠小於傳統的動圈式揚聲器， 因此可增加電子裝置内部空間的使用效率。 本發明第-實施例之具有電聲致動器之電子裝置包含 殼體’其具有複數個開口，貫穿於殼體的内表面與外 人:間。在殼體的内表面上’設置有一電聲致動器，盆包 :且it駐電振膜，位於殼體的内表面上’第-駐電振 I有由介電材料所製成且帶有靜電荷之一第一薄媒主體 01349-TW / HTC 097180-0 201018252 以及形成於第一薄膜主體的下表面上之—第—電極 第-薄膜主體的上表面上，疊設有一第 極，其具複數個開口。此外，在第一駐電振膜與第—文= 板之間1置有至少-個第—間隙子，係用以使第— 振膜與第—導電板間相隔一預定之距離。 ^ 發明第二實施例之具有電聲致動器之電子裝置相較201018252 IX. Description of the Invention: The present invention relates to an electronic device having an electroacoustic actuator, and more particularly to an electronic device having a resident electroacoustic actuator. [Prior Art] A loudspeaker is a device capable of emitting sound. The principle of sounding is to use an electrical signal to vibrate the diaphragm to generate sound. Currently, it is widely used in mobile phones, personal digital assistants, and notebook computers. Specially needed to sound on the electronic device. The conventional speaker is a dynamic speaker that attracts a coiled coil by a magnet to vibrate the diaphragm connected to the coil to emit sound. However, the above-mentioned moving coil speaker can produce good sounds: 'But because the sound chamber needs to occupy a certain space, the thickness can never be reduced, although it can be used in mobile phones, personal digital assistants and notebook computers. When the electronic device is mounted, the thickness of the product cannot be reduced. SUMMARY OF THE INVENTION The present invention provides an electronic device having a resident electroacoustic actuator, wherein the thickness of the «• electroacoustic actuator is much smaller than that of a conventional moving coil speaker, thereby increasing the internal space of the electronic device. Use efficiency. An electronic device having an electroacoustic actuator according to a first embodiment of the present invention includes a housing having a plurality of openings extending through an inner surface of the housing and an external person. An electroacoustic actuator is disposed on the inner surface of the casing, and the pot is: and the electrostatic diaphragm is located on the inner surface of the casing. The first - resident electric vibration I is made of a dielectric material and has a belt. a first thin medium body 01349-TW / HTC 097180-0 201018252 having a static charge and a first electrode formed on the upper surface of the first electrode-film body formed on the lower surface of the first film body It has a plurality of openings. In addition, at least one first gap is disposed between the first resident diaphragm and the first plate to separate the first diaphragm from the first conductive plate by a predetermined distance. ^ Inventing the electronic device with the electroacoustic actuator of the second embodiment
雇！：：施例之電子裝置另包含一第二導電板做為電極， 疊-於第-導電板上，並具有複數個開口。在第 導電板之間，設置有-絕緣層，由纽的透氣膜所構成了 另外’在第二導電板上’疊設有一第二駐電振膜，其包含 有由介電材料所製成且帶有靜電荷之一第二薄膜主體以及 形成於第二薄膜主體的上表面上之一第二電極層，並中一 料：係貼附於第二電極層上。此外’在第二駐電振 膜與第-V電板之間，有至少一個第二間隙子，用以 使第二駐電振膜與第二導電板間相隔一預定之距離。 本士發明第三實施例之具有電聲致動器之電子裝置包含 有-殼體，其具有複數個開σ，在殼體的内表面上，設置 有電聲致動器，其包含一導電板做為電極，設置於殼體 的内表面上，且具有複數個開口。在導電板的上方，叠設 有：駐電振膜’其具有由介電材料所製成且帶有靜電荷之 -薄膜主體以及形成於薄膜主體的上表面上之一電極層。 此外’在駐電振媒與導電板之間，設置有至少—個間隙子， 用以使駐電振膜與導電板間相隔一預定之距離。另外，一 吸音材料層貼附於電極層上。 01349-TW/HTC 097180-0 6 201018252 本發明第四實施例之具有電聲致動器之電子裝置係大 體上相同於第三實施例之電子裝置，所不同的是，原第三 實施例之電聲致動的導電板係以鍍在殼體的内表面上的導 電層所取代。 為了讓本發明之上述和其他目的、特徵、和優點能更明 顯，下文特舉本發明實施例，並配合所附圖*，作詳細說 明如下。 【實施方式】 參考第1、2a及2b圖，本發明第一實施例之具有電聲 致動器之電子裝置1GG包含有―殼體UG，其具有複數個 ^ 4貝穿於殼體110的内表面112與外表面us間。 在殼體U〇的内表面112上，設置有-電聲致動器180,其 匕5有駐電振膜（electret diaphragm)120，位於殼體11〇 的内表面112上。另外’駐電振膜120具有由介電材料所 製成且帶有靜電荷之一薄膜主體122以及形成於薄膜主體 122的下表面上之一電極層124，其中，薄膜主體η:的厚 度為7至25_，而電極層124的厚度為0.05至1μηι。在 溥膜主體122的上表面上，疊設有一導電板14〇傲為電極， 其具複數個開口 142與開口 m相對應，其中，導電板140 的開口率大於2〇〇乂，；© + 厚度則為0,1至1 mm。此外，在駐電 振膜 120與導雷# ^ 等板14〇之間，設置有至少一個間隙子 (spacer) 1 50，各間隙工 ^ & ’、子150之間距為5至20mm、高度為 100至400μιη，俜用以杜 ^ 你用U使駐電振膜U0與導電板Μ0間相 隔一預定之距離。 01349-TW/HTC 097180-0 7 201018252 為使薄膜主體122帶有靜電荷，原先未帶有靜電荷的薄 膜主體122需要進行極化（p〇iarize(j)處理，例如在電極層 124形成後，以電暈充電（corona charging)法使薄膜主體122 之内部及表面上帶有電荷。適合做為薄膜主體122之介電 材料可為例如聚全敦乙丙稀（fluorinated ethylene propylene; FEP)、聚四氟乙烯（p〇iytetraflu〇r〇ethene; pTFE)、氟化氣 亞乙烯（Polyvinylidene Fluoride; PVDF)、二氧化石夕（Si02) 或某些含氟之高分子聚合物。此外，駐電振膜12〇之周緣 癱 需加以固定’以防止其移動。在操作本實施例之電聲致動 器180時，需要分別對導電板14〇及電極層ι24輸入與原 本聲音訊號同相及反相的電子訊號，亦即差動（differential) 訊號’使駐電振膜120受到來自導電板14〇及電極層124 的庫倫（Coulomb)作用力以產生推拉效應（Push_pull effec^ 而發生根據該電子訊號之振動’此振動會推動空氣而產生 聲音。由駐電振膜120振動所產生的聲音可從開口 114傳 送至殼體Π0外’以讓使用者所聽見。 〇 除此之外，由駐電振膜120振動所產生的聲音亦會穿過 導電板140的開口 142，為避免此聲音反射回來而影響電 聲致動器的表現，導電板14〇的上表面較佳係離開其他元 件一段之距離，例如大於lmm，或者是在導電板14〇的上 表面上貼附一吸音材料層160,例如是玻璃纖維、泡棉或 不織布等材料，其厚度為lmm至5mm。再者，為避免電極 層124在殼體11〇上滑動而損壞，可在電極層124與殼體 11〇之内表面112間，設置至少一個間隙子17〇與間隙子 150相對應，其高度為3〇至5〇μιη，防止電極層與殼 01349-TW/HTC 097180-0 8 201018252 體11 〇直接接觸。另外，間隙子150較佳係可由黏膠所構 成，例如是雙面膠，黏接導電板140與薄膜主體122。 參考第1、3a及3b圖，本發明第二實施例之具有電聲 致動器之電子裝置200包含有電子裝置100所具有之元 '件，亦即包含有殼體110以及電聲致動器180所具有之元 件，包括有：駐電振膜120、導電板140、間隙子150、170 以及吸音材料層160。除了上述元件之外，電子裝置200 之電聲致動器280還包含有一導電板240做為電極，疊設 ❿ 於導電板140上，並具有複數個開口 242與導電板140之 開口 142相對應，導電板240的厚度為0.1至1mm。在導 電板140與240之間，設置有一絕緣層290，由多孔的透 氣膜所構成，其厚度為20至200μπι。另外，在導電板240 上，疊設有一駐電振膜220，其包含有由介電材料所製成 且帶有靜電荷之一薄膜主體222以及形成於薄膜主體222 的上表面上之一電極層224，其中，吸音材料層160係貼 附於電極層224上，而薄膜主體222的厚度為7至25μηι， φ 電極層224的厚度則為0.05至1 μηι。此外，在駐電振膜220 與導電板240之間，設置有至少一個以例如黏膠所構成的 間隙子250與間隙子150相對應，間隙子250之高度為100 至400μηι，係用以使駐電振膜220與導電板240間相隔一 預定之距離。 同樣地，為使薄膜主體222帶有靜電荷，原先未帶有靜 電荷的薄膜主體222亦需要進行極化處理，以使其内部及 表面上帶有電荷。而適合做為薄膜主體222之介電材料亦 可為FEP、PTFE、PVDF、二氧化矽或某些含氟之高分子聚 01349-TW/HTC 097180-0 9 201018252 装孩叔此外’駐電振膜220之周緣亦需加以固$，以防止 相 在操作本實施例之電聲致動器280時，需對導電 . ^4〇及電極層224輪入與原本聲音訊號同相的第-電子 電極層124及導電板240則分別輸入有一反相的 弟-電子訊號。如此’駐電振臈12〇、細將會受到來自導 電板140與電極層124以及導電板謂與電極層之庫 =作用，並分別根據該第一電子訊號與第二電子訊號產生 X動而發出聲音。由駐電振膜Μ。振動所產生的聲音能夠 •穿過多孔的絕緣層290,並通過開口 m傳送至殼體ιι〇 外如此的雙振膜結構之電聲致動器280能夠較第一實施 ，之單振膜結構之電聲致動器UG產生大上—倍⑽）的音 °hire! The electronic device of the embodiment further includes a second conductive plate as an electrode, stacked on the first conductive plate, and having a plurality of openings. Between the first conductive plates, an insulating layer is disposed, and the gas permeable membrane of the button is formed, and another 'on the second conductive plate' is stacked with a second resident electric film, which is made of a dielectric material. And a second film body having a static charge and a second electrode layer formed on the upper surface of the second film body, and one of the materials: attached to the second electrode layer. Further, between the second resident electric film and the first-V electric plate, there is at least one second gap for spacing the second resident diaphragm from the second conductive plate by a predetermined distance. The electronic device with electroacoustic actuator according to the third embodiment of the present invention comprises a housing having a plurality of openings σ, and on the inner surface of the housing, an electroacoustic actuator is provided, which comprises a conductive The plate is provided as an electrode and is disposed on an inner surface of the casing and has a plurality of openings. Above the conductive plate, there is stacked: a standing diaphragm </ RTI> having a film body made of a dielectric material and having an electrostatic charge, and an electrode layer formed on the upper surface of the film body. Further, at least a gap is provided between the electret oscillator and the conductive plate for spacing the resident diaphragm from the conductive plate by a predetermined distance. Further, a layer of sound absorbing material is attached to the electrode layer. 01349-TW/HTC 097180-0 6 201018252 The electronic device with electroacoustic actuator according to the fourth embodiment of the present invention is substantially the same as the electronic device of the third embodiment, except that the original third embodiment The electroacoustic actuated conductive plate is replaced by a conductive layer plated on the inner surface of the housing. The above and other objects, features and advantages of the present invention will become more apparent from [Embodiment] Referring to Figures 1, 2a and 2b, an electronic device 1GG having an electroacoustic actuator according to a first embodiment of the present invention includes a "shell UG" having a plurality of shells penetrating the housing 110. The inner surface 112 is between the outer surface us. On the inner surface 112 of the housing U, an electroacoustic actuator 180 is provided, the crucible 5 having an electret diaphragm 120 located on the inner surface 112 of the housing 11''. Further, the resident optical film 120 has a film body 122 made of a dielectric material and having an electrostatic charge, and an electrode layer 124 formed on the lower surface of the film body 122, wherein the thickness of the film body η: is 7 to 25_, and the electrode layer 124 has a thickness of 0.05 to 1 μm. On the upper surface of the diaphragm main body 122, a conductive plate 14 is stacked as an electrode, and the plurality of openings 142 correspond to the opening m, wherein the opening ratio of the conductive plate 140 is greater than 2〇〇乂; The thickness is from 0,1 to 1 mm. In addition, at least one spacer 1 50 is disposed between the resident diaphragm 120 and the guide 14 or the like, and the gap between the spacers and the sub-150 is 5 to 20 mm, and the height is 5 to 20 mm. For 100 to 400 μm, use U to use U to separate the resident diaphragm U0 from the conductive plate Μ0 by a predetermined distance. 01349-TW/HTC 097180-0 7 201018252 In order to impart a static charge to the film body 122, the film body 122, which has not previously been electrostatically charged, needs to be polarized (p〇iarize(j), for example, after the electrode layer 124 is formed The inside and the surface of the film body 122 are charged by a corona charging method. The dielectric material suitable for the film body 122 may be, for example, fluorinated ethylene propylene (FEP), Polytetrafluoroethylene (p〇iytetraflu〇r〇ethene; pTFE), polyvinylidene fluoride (PVDF), dioxide (Si02) or some fluorine-containing polymer. In addition, resident The periphery of the diaphragm 12〇 need not be fixed to prevent its movement. When the electroacoustic actuator 180 of the embodiment is operated, the input of the conductive plate 14〇 and the electrode layer ι24 must be in phase with the original sound signal and inverted. The electronic signal, that is, the differential signal, causes the resident diaphragm 120 to receive a Coulomb force from the conductive plate 14 and the electrode layer 124 to generate a push-pull effect (Push_pull effec^ occurs according to the electron The vibration of the number 'this vibration will push the air to generate sound. The sound generated by the vibration of the resident diaphragm 120 can be transmitted from the opening 114 to the outside of the casing '0 for the user to hear. The sound generated by the vibration of the electric diaphragm 120 also passes through the opening 142 of the conductive plate 140. To prevent the sound from being reflected back and affecting the performance of the electroacoustic actuator, the upper surface of the conductive plate 14 is preferably separated from the other components. The distance, for example, greater than 1 mm, or a layer of sound absorbing material 160 attached to the upper surface of the conductive plate 14A, such as glass fiber, foam or non-woven fabric, has a thickness of 1 mm to 5 mm. The electrode layer 124 is slid and damaged on the casing 11 , and at least one gap 17 is disposed between the electrode layer 124 and the inner surface 112 of the casing 11 , corresponding to the spacer 150 , and the height is 3〇 to 5 〇μιη, to prevent the electrode layer from directly contacting the shell 01349-TW/HTC 097180-0 8 201018252 body 11. In addition, the spacer 150 is preferably made of adhesive, such as double-sided tape, bonding the conductive plate 140 with Film body 122. Reference No. 1. 3a and 3b, an electronic device 200 with an electroacoustic actuator according to a second embodiment of the present invention includes a component of the electronic device 100, that is, a housing 110 and an electroacoustic actuator 180. The components include: a resident diaphragm 120, a conductive plate 140, spacers 150, 170, and a layer of sound absorbing material 160. In addition to the above components, the electroacoustic actuator 280 of the electronic device 200 further includes a conductive plate 240 as an electrode, stacked on the conductive plate 140, and having a plurality of openings 242 corresponding to the openings 142 of the conductive plates 140. The conductive plate 240 has a thickness of 0.1 to 1 mm. Between the conductive plates 140 and 240, an insulating layer 290 is provided which is composed of a porous gas permeable film having a thickness of 20 to 200 μm. In addition, on the conductive plate 240, a resident diaphragm 220 is stacked, which comprises a film body 222 made of a dielectric material and having an electrostatic charge, and an electrode formed on the upper surface of the film body 222. The layer 224, wherein the sound absorbing material layer 160 is attached to the electrode layer 224, and the film body 222 has a thickness of 7 to 25 μm, and the φ electrode layer 224 has a thickness of 0.05 to 1 μm. In addition, between the resident diaphragm 220 and the conductive plate 240, at least one spacer 250 made of, for example, a glue is provided corresponding to the spacer 150, and the height of the spacer 250 is 100 to 400 μm. The resident diaphragm 220 and the conductive plate 240 are separated by a predetermined distance. Similarly, in order to impart a static charge to the film body 222, the film body 222, which has not previously been electrostatically charged, also needs to be subjected to a polarization treatment to charge the inside and the surface. The dielectric material suitable for the film body 222 may also be FEP, PTFE, PVDF, cerium oxide or some fluorine-containing polymer poly 01349-TW/HTC 097180-0 9 201018252 The periphery of the film 220 also needs to be solidified to prevent the phase-electrode actuator of the present embodiment from being electrically conductive. ^4〇 and the electrode layer 224 are inserted into the first-electrode electrode in phase with the original acoustic signal. The layer 124 and the conductive plate 240 are respectively input with an inverted-electron signal. Thus, the 'stationary vibrating body 12 〇 will be subjected to the action from the conductive plate 140 and the electrode layer 124 and the conductive plate and the electrode layer, and respectively generate X motion according to the first electronic signal and the second electronic signal. Make noise. By the resident diaphragm. The sound generated by the vibration can pass through the porous insulating layer 290 and is transmitted to the housing through the opening m. The electroacoustic actuator 280 of such a double diaphragm structure can be implemented as compared with the first embodiment. The electroacoustic actuator UG produces a large up-fold (10) sound.
參考第1、4a及4b ®，本發明第三實施例之具有電聲 致動器之電子裝置300包含有殼體m，在殼體m的内表 面112上，設置有一電聲致動器38〇，其包含一導電板34〇 做為電極，設置於殼體110的内表面112上，且具有複數 個開口 342與開口 114相對應。在導電板34〇的上方，疊 設有一駐電振膜320,其具有由介電材料所製成且帶有二 電荷之一薄膜主體322以及形成於薄膜主體322的上表面 上之一電極層324,其中，薄膜主體322的厚度為7至 25μιη，而電極層324的厚度為0·05至1μηι。此外，在駐電 振膜320與導電板340之間，設置有至少一個以例如黏膠 所構成的間隙子350,各間隙子35〇之間距為5至2〇mm、 高度為100至400μιη，係用以使駐電振膜32〇與導電板34〇 間相隔一預定之距離。為避免導電板340在殼體11〇上滑 01349-TWIHTC 097180-0 10 201018252 動而損壞，在導電板340與 冰里士 〇氙體110之内表面112之間， Γ5〇=Γ—個以例如黏膠所構成的間隙子谓與間隙子 二Γ ’其高度為30至5〇μΠ1，防止導電板34。與殼 接接觸。另外’為了避免駐電振膜则振動所產 生的聲波反射回來影響電聲致動器的表現，一吸音材料層 3 60係貼附於電極層324上。Referring to the first, fourth, and fourth embodiments, the electronic device 300 having the electroacoustic actuator of the third embodiment of the present invention includes a housing m on which an electroacoustic actuator 38 is disposed. The crucible includes a conductive plate 34 as an electrode disposed on the inner surface 112 of the housing 110 and having a plurality of openings 342 corresponding to the openings 114. Above the conductive plate 34A, a resident diaphragm 320 having a film body 322 made of a dielectric material and having two charges and an electrode layer formed on the upper surface of the film body 322 is stacked. 324, wherein the film body 322 has a thickness of 7 to 25 μm, and the electrode layer 324 has a thickness of 0·05 to 1 μm. In addition, between the resident diaphragm 320 and the conductive plate 340, at least one spacer 350 made of, for example, a glue is disposed, and the distance between the gaps 35〇 is 5 to 2 mm and the height is 100 to 400 μm. It is used to separate the resident diaphragm 32A from the conductive plate 34 by a predetermined distance. In order to prevent the conductive plate 340 from slipping on the housing 11 01 01349-TWIHTC 097180-0 10 201018252, between the conductive plate 340 and the inner surface 112 of the ice scorpion body 110, Γ5〇=Γ For example, the gap formed by the adhesive and the spacer are two 其's height of 30 to 5 〇μΠ1 to prevent the conductive plate 34. Contact with the shell. Further, in order to avoid reflection of the sound waves generated by the vibration of the electret diaphragm, the sound absorbing material layer 306 is attached to the electrode layer 324.
同樣地為使薄媒主體322帶有靜電荷，原先未帶有靜 電荷的f膜主# 322亦需要進行極化處理，以使其内部及 ^面上贡有電荷。另外，駐電振膜32〇之周緣亦需加以固 定，以防止其移動。在操作本實施例之電聲致動器38〇時， 亦需對導電板340及電極層324輸入一電子訊號，以使駐 電振膜320根據該電子訊號產生振動而發出聲音。 參考弟1、5a及5b圖，本發明第四實施例之具有電聲 致動器之電子裝置400係大體上相同於電子裝置3〇〇，所 不同的是，電子裝置4〇〇的電聲致動器48〇未包含有間隙 子370，且原電聲致動器38〇的導電板34〇係以鍍在殼體 110的内表面112上的導電層440所取代。其餘第5a&5b 圖中相同於第4a及4b圖的標號係表示相同的元件，在此 不加以贅述。同樣地，在操作本實施例之電聲致動器480 ^ ’亦需對導電層440及電極層324輸入一電子訊號，以 使駐電振膜320根據該電子訊號產生振動而發出聲音。 根據本發明之電子裝置100、200、300、400所包含的 電聲致動器180、280、380、480係裝設在殼體110上，殼 體Π0可為電子裝置1〇〇、2〇〇、3〇〇、4〇〇之前蓋、側蓋或 01349-TW/HTC 097180-0 11 201018252 背蓋。吾人應可瞭解，這些電聲致動器180、280、3 80、 48〇需要與電子裝置100、200、300、400内的其他元件， 例如電路板電性連接方可作動。再請參考第2a、2b、3a、 3b、4a、4b、5a及5b圖，當本發明之電聲致動器180、280、 3 80、480裝設於使用者可拆卸之背蓋11()上時，背蓋ι1〇 的内表面II2上設置有接點116a，與導電板140、340、導 電層440電性連接，而設置在背蓋11〇的内表面112上的 接點116b則與電極層124、324電性連接。另外，在電子 ❹ 裝置200的背蓋110的内表面112上，還設置有接點ii9a 與119b ’分別與電聲致動器28〇的導電板24〇以及電極層 224電性連接。如第孔、Sb、朴及％所示，當背蓋ιι〇 裝於電子裝置1〇0、200、3〇0、400上時，接點1163及11613 會分别與位在電子裝置1〇〇、2〇〇、3〇〇、4〇〇上的電路板 195的接點197&及197b電性接觸，而接點^“及ιΐ9γ如 第3b所不）則分別與電子裝置2〇〇的電路板1 %上的接點 a及198b電性接觸，以將電子信號輸入至導電板、 ❿240、340、導電層440以及電極層124、224、324 ’使駐 電振膜120、220、320 ip诚·7 320根據该等電子訊號產生振動而發出 本發明之電聲致動 分開的間隙子，然而， 用在薄片上形成複數個 器所包含的間隙子係可為彼此相互 吾人應可瞭解，上述間隙子亦可利 開口來取代之。 根據，發明之電子裝置可為可攜式電子裝置，例如是( 話、個人數位助理器或筆記型 電子裝置之電聲致動器的厚产逹由於本發心 厚度通小於傳統岣動圈式揚聲累 01349-TW/HTC 097180-0 201018252 的厚度，因此可增加電子裝置内部空間的使用效率。本發 明之電子裝置之電聲致動器可裝設於背蓋上，因此可進— 步降低電子裝置的厚度並增加其内部的可用空間。另外， 本發明第一、二實施狀電聲致動器的駐電振膜之駐電面 係面向結㈣的㈣’财效避免灰塵及錢舆駐電振膜 之駐電面接觸而影響其駐電特性。Similarly, in order to make the thin dielectric body 322 electrostatically charged, the original film 322 which is not electrostatically charged is also subjected to polarization treatment so that the internal and the surface thereof are charged. In addition, the periphery of the resident diaphragm 32 is also required to be fixed to prevent its movement. When the electroacoustic actuator 38 of the present embodiment is operated, an electronic signal is also input to the conductive plate 340 and the electrode layer 324, so that the resident diaphragm 320 generates a sound according to the vibration of the electronic signal. Referring to the drawings 1, 5a and 5b, the electronic device 400 with the electroacoustic actuator according to the fourth embodiment of the present invention is substantially the same as the electronic device 3, except that the electronic device 4 is electroacoustic. The actuator 48A does not include a gap 370, and the conductive plate 34 of the original electroacoustic actuator 38 is replaced by a conductive layer 440 plated on the inner surface 112 of the housing 110. The same reference numerals are given to the same elements in the other FIGS. 5a and 5b, and the same reference numerals are given to the same elements, and will not be described herein. Similarly, in the operation of the electroacoustic actuator 480 ^ ' of the present embodiment, an electronic signal is also input to the conductive layer 440 and the electrode layer 324, so that the resident diaphragm 320 generates a sound according to the vibration of the electronic signal. The electroacoustic actuators 180, 280, 380, 480 included in the electronic device 100, 200, 300, 400 according to the present invention are mounted on the housing 110, and the housing Π0 can be the electronic device 1〇〇, 2〇 〇, 3〇〇, 4〇〇 front cover, side cover or 01349-TW/HTC 097180-0 11 201018252 Back cover. It should be understood by those skilled in the art that these electroacoustic actuators 180, 280, 380, 48A need to be electrically coupled to other components within the electronic device 100, 200, 300, 400, such as a circuit board. Referring again to Figures 2a, 2b, 3a, 3b, 4a, 4b, 5a and 5b, the electroacoustic actuators 180, 280, 380, 480 of the present invention are mounted to the user's detachable back cover 11 ( The upper surface II2 of the back cover 设置1〇 is provided with a contact 116a electrically connected to the conductive plates 140, 340 and the conductive layer 440, and the contact 116b disposed on the inner surface 112 of the back cover 11〇 is It is electrically connected to the electrode layers 124 and 324. Further, on the inner surface 112 of the back cover 110 of the electronic device 200, contacts ii9a and 119b' are further provided to electrically connect the conductive plates 24A of the electroacoustic actuators 28 and the electrode layers 224, respectively. As shown in the first hole, Sb, Pak, and %, when the back cover is mounted on the electronic device 1〇0, 200, 3〇0, 400, the contacts 1163 and 11613 are respectively located in the electronic device 1〇〇. The contacts 197 & 197b of the circuit board 195 on 2〇〇, 3〇〇, 4〇〇 are electrically contacted, and the contacts ^" and ιΐ9γ are not as in the 3b) are respectively associated with the electronic device 2 The contacts a and 198b on the circuit board 1% are electrically contacted to input electrical signals to the conductive plates, the electrodes 240, 340, the conductive layer 440, and the electrode layers 124, 224, 324' to make the electret diaphragms 120, 220, 320 Ipcheng·7 320 emits the electroacoustic actuated separate gap of the present invention according to the vibration generated by the electronic signals. However, the gap sub-systems included in the plurality of devices formed on the sheet may be mutually understood by each other. The above-mentioned gap can also be replaced by an opening. According to the invention, the electronic device can be a portable electronic device, for example, a thick product of an electroacoustic actuator of a personal digital assistant or a notebook electronic device. Because the thickness of the hair core is smaller than the traditional swaying ring type sounding 01349-TW/HTC 097180-0 201 The thickness of 018252 can thus increase the efficiency of use of the internal space of the electronic device. The electroacoustic actuator of the electronic device of the present invention can be mounted on the back cover, thereby further reducing the thickness of the electronic device and increasing the available internals thereof. In addition, the resident surface of the resident diaphragm of the first and second embodiments of the electroacoustic actuator of the present invention faces the junction of (4) of the junction (4), and the contact surface of the resident diaphragm of the resident diaphragm is prevented. Affect its resident characteristics.
雖然本發明已以前述較佳實施例揭示，然其並非用以限 f本發明’任何熟習此技藝者，在不脫離本發明之精神和 祀圍内w可作各種之更動與修改。因此本發明之保護範 圍當視後附之中請專利範圍所界定者為準。 01349-TW / HTC 097180-0 13 201018252 【圖式簡單說明】 第1圖：為根據本發明之電子裝置之外觀。 器之電 器之電 器之電 . 第23圖：為本發明第一實施例之具有電聲致動 • 子裝置的剖面圖，其中背蓋係與電子裝置分開。 第2b圖：為本發明第一實施例之具有電聲致動 子裝置的剖面圖，其中背蓋係裝設於電子裝置上。 帛3a圖：為本發明第二實施例之具有電聲致動 • +裝置的剖面圖，其中背蓋係與電子裝置分開。 子本之電 第:圖：為本發明第三實施例之具有電聲致動器 子裝置的剖面圖，其中背蓋係與電子褒置分開。 電 第4b圖：為本發明第=眚 實例具有電聲致動器之電 子裝置的剖面圖，其中背蓋係裝設於電子震置上。冤 器之電 器之電 ❿帛5a® :為本發明第四實施例之具有電聲致動 子裝置的剖面圖，其中背蓋係與電子裝置分開。 第5b圖：為本發明第四實施例之具有電聲致 子裝置的剖面圖，其中背蓋係裝設於電子裝置上。 110 殼體 114 開口 【主要元件符號說明】 100 電子裝置 112 内表面 01349-TW/HTC 097180-0 201018252While the invention has been described in its preferred embodiments, the invention may be modified and modified without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application. 01349-TW / HTC 097180-0 13 201018252 [Simplified description of the drawings] Fig. 1 is an appearance of an electronic device according to the present invention. Figure 23 is a cross-sectional view of an electroacoustic actuation device according to a first embodiment of the present invention, wherein the back cover is separated from the electronic device. Figure 2b is a cross-sectional view of the electroacoustic actuator device of the first embodiment of the present invention, wherein the back cover is mounted on the electronic device. Figure 3a is a cross-sectional view of an apparatus having an electroacoustic actuation device according to a second embodiment of the present invention, wherein the back cover is separated from the electronic device. The present invention is a cross-sectional view of a sub-device having an electroacoustic actuator according to a third embodiment of the present invention, wherein the back cover is separated from the electronic unit. Figure 4b is a cross-sectional view of an electronic device having an electroacoustic actuator of the present invention, wherein the back cover is mounted on the electronically placed device. The electric device of the electric device 5a® is a cross-sectional view of the electroacoustic actuator device according to the fourth embodiment of the present invention, wherein the back cover is separated from the electronic device. Figure 5b is a cross-sectional view of an electroacoustic device according to a fourth embodiment of the present invention, wherein the back cover is mounted on the electronic device. 110 Housing 114 Opening [Description of main components] 100 Electronic device 112 Inner surface 01349-TW/HTC 097180-0 201018252
116a 接點 116b 接點 118 外表面 119a 接點 119b 接點 120 駐電振膜 122 薄膜主體 124 電極層 140 導電板 142 開口 150 間隙子 160 吸音材料層 170 間隙子 180 電聲致動器 195 電路板 197a 接點 197b 接點 198a 接點 198b 接點 200 電子裝置 220 駐電振膜 222 薄膜主體 224 電極層 240 導電板 242 開口 250 間隙子 280 電聲致動器 290 絕緣層 300 電子裝置 320 駐電振膜 322 薄膜主體 324 電極層 340 導電板 342 開口 350 間隙子 360 吸音材料 370 間隙子 400 電子裝置 440 導電層 480 電聲致動器 01349-TW / HTC 097180-0 15116a contact 116b contact 118 outer surface 119a contact 119b contact 120 resident diaphragm 122 film body 124 electrode layer 140 conductive plate 142 opening 150 spacer 160 sound absorbing material layer 170 spacer 180 electroacoustic actuator 195 circuit board 197a contact 197b contact 198a contact 198b contact 200 electronic device 220 resident diaphragm 222 film body 224 electrode layer 240 conductive plate 242 opening 250 spacer 280 electroacoustic actuator 290 insulation layer 300 electronic device 320 resident vibration Film 322 Film Body 324 Electrode Layer 340 Conductive Plate 342 Opening 350 Spacer 360 Sound Absorbing Material 370 Spacer 400 Electronic Device 440 Conductive Layer 480 Electroacoustic Actuator 01349-TW / HTC 097180-0 15