Γ379286 101年.09月28日修正_頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種發聲裝置，尤其涉及一種基於熱聲原理 的發聲裝置。 【先前技術】 [0002] 早在二十世紀初，H. D. Arnold等人提出了 一種基於熱聲 效應的發聲裝置，請參見文獻“The thermophone as ο a precision source of sound”，H. D. Arno Id, I. B. Crandall, Phys. Rev. 10, 22-38 (1917) 。所述發聲裝置採用一鉑片作熱發聲元件。所述鉑片的 厚度為0. 7微米。當交流電通過鉑片時，隨交變電流強度 的變化，該鉑片可迅速升降溫，並和鉑片週圍介質迅速 發生熱交換，週圍介質的密度亦隨之發生變化，進而發 出聲波。 [0003] 由於熱發聲元件的發聲頻率與其單位面積熱容密切相關 。單位面積熱容越大，則發聲頻率範圍越窄，強度越低 ;單位面積熱容越小，則發聲頻率範圍越寬，強度越高 。欲獲得具有較寬發聲頻率範圍及較大強度的聲波，則 要求熱發聲元件的單位面積熱容越小越好。然而，金屬 鉑片受材料本身的限制，其厚度最小只能達到0. 7微米， 而0. 7微米厚的鉑片的單位面積熱容為2x10_4焦耳每平方 釐米開爾文，所述熱發聲元件的發聲頻率最高僅可到4千 赫茲，且發聲強度較低。因此，利用熱聲效應的上述熱 發聲元件無法滿足曰常應用。 [0004] 范守善等人於2008年10月公開了一種應用熱聲效應的發 09715183(P編號 A0101 第3頁/共31頁 1013375827-0 1379286 1101 年09月 聲裝置，請參見文獻“Flexible, Stretchable, Transparent Carbon Nanotube Thin FilmΓ379286 101.09月28日修正_Page VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a sounding device, and more particularly to a sounding device based on the thermoacoustic principle. [Prior Art] [0002] As early as the beginning of the twentieth century, HD Arnold et al. proposed a sounding device based on thermoacoustic effects, see the document "The thermophone as ο a precision source of sound", HD Arno Id, IB Crandall , Phys. Rev. 10, 22-38 (1917). The sounding device uses a platinum sheet as a thermal sounding element. 7微米。 The thickness of the platinum sheet is 0. 7 microns. When the alternating current passes through the platinum sheet, the platinum sheet can rapidly rise and fall with the change of the alternating current intensity, and rapidly exchange heat with the medium surrounding the platinum sheet, and the density of the surrounding medium also changes, thereby generating sound waves. [0003] Since the sounding frequency of a thermoacoustic element is closely related to its heat capacity per unit area. The larger the heat capacity per unit area, the narrower the sound frequency range and the lower the intensity. The smaller the heat capacity per unit area, the wider the sound frequency range and the higher the strength. In order to obtain sound waves having a wide range of audible frequencies and a large intensity, it is required that the heat capacity per unit area of the thermosonic element is as small as possible. However, the metal platinum sheet is limited by the material itself, and the thickness thereof can only be as small as 0.7 μm, and the heat capacity per unit area of the platinum sheet of 0.7 μm thick is 2×10 4 joules per square centimeter Kelvin, the thermoacoustic element The vocal frequency is only up to 4 kHz and the vocal intensity is low. Therefore, the above-described thermoacoustic element utilizing the thermoacoustic effect cannot satisfy the usual application. [0004] Fan Shoushan et al. published a sound-sensing effect in October 2008, 09715183 (P number A0101, page 3, total 31 pages, 1013375827-0 1379286, 1101, September, sound device, see the literature "Flexible, Stretchable" , Transparent Carbon Nanotube Thin Film
Loudspeakers” ，Shoushan Fan et al.，Nano Letters ’ Vol. 8 (12)，4539-4545 (2008)。請參閱 圖1，所述發聲裝置100包括一熱發聲膜120、一第一電極 140以及一第二電極160。所述第一電極140及第二電極 160用於向熱發聲庵120輸入訊號。所述熱發聲膜12〇為 一奈米碳管膜。所述熱發聲膜120的兩端通過所述第—電 極140及第二電極160固定並懸空設置。由於奈来碳管膜 具有較大的比表面積及較小的單位面積熱容，其單位面 積熱容小於2χ10_4焦耳每平方釐米開爾文，所述懸空設 置的奈米碳管膜可與週圍介質較好的進行熱交換，採用 該奈米碳管膜作熱發聲膜120的發聲裝置1〇〇可發出較寬 頻率範圍内的聲音，發聲強度較高且發聲效果較好。 [0005]上述熱發聲膜120也可直接設置在一玻璃板上，通過該玻 璃板對其一面提供保護。然而，當熱發聲膜120完全貼人 於玻璃板表面時’該熱發聲膜120產生的熱量大多被玻璃 板傳導走，無法用來加熱空氣。另外，貼合於玻璃板表 面的熱發聲膜120只有一面與空氣接觸，使其與空氣的熱 交換減少，進而影響熱發聲膜120的發聲欵果。此外，上 述文獻沒有揭示一保護結構用於對所述熱發聲膜12〇的兩 面提供保護且不影響所述熱發聲膜120的發聲效果，所述 熱發聲膜120至少一表面直接暴露在空氣中，易於遭受破 壞。 【發明内容】 〇971518#單減麵1 第4頁/共31頁 1013375827-0 1379286 101年.09月28日修正替換頁 [0006] 有鑒於此，確有必要提供一種具有保護結構的發聲裝置 ，該保護結構可對熱發聲膜的兩面提供保護且不影響所 述熱發聲膜的發聲效果。 [0007] 一種發聲裝置，其包括：至少一第一電極和至少一第二 電極，該第一電極和第二電極隔開設置；以及一熱發聲 膜，該熱發聲膜與所述第一電極和第二電極電連接；其 中，所述發聲裝置進一步包括兩個板狀保護結構，該板 狀保護結構設置在所述熱發聲膜相對的兩側。 [0008] —種發聲裝置，其包括：至少一第一電極和至少一第二 電極，該第一電極和第二電極隔開設置；以及一熱發聲 膜，該熱發聲膜與所述第一電極和第二電極電連接；其 中，所述發聲裝置進一步包括兩個多孔板狀保護結構設 置在所述熱發聲膜相對的兩側。 [0009] 相較於先前技術，所述板狀保護結構設置在所述熱發聲 膜兩側，該板狀保護結構可對熱發聲膜起保護作用，使 所述熱發聲膜不易遭受破壞。另外，由於所述板狀保護 結構設置在所述熱發聲膜兩側，所述板狀保護結構不會 影響所述熱發聲膜與週圍介質之間的熱交換，進而不會 影響所述熱發聲膜的發聲效果。 【實施方式】 [0010] 以下將結合附圖詳細說明本發明實施例的發聲裝置。 [0011] 請參閱圖2至圖3,本發明第一實施例提供一種發聲裝置 10，該發聲裝置10包括一熱發聲膜102、至少一第一電極 104a、至少一第二電極104b、兩個板狀保護結構106。 09715183产單織 A〇101 第5頁/共31頁 1013375827-0 1379286 ---- 101年09月28日核正替換頁 所述至少一第電極l〇4a和至少一第二電極104b通過所 述板狀保護結構1 06固定。所述熱發聲膜1〇2設置在所述 第一電極l〇4a和第一電極l〇4_b之間’且通過所述第一電 極104a和第二電極10扑固定。所述熱發聲膜102可接受 所述第一電極l〇4a和第二電極l〇4b輸入的訊號發出聲波 。所述兩板狀保護结構1〇6設置在所述熱發聲膜102的兩 側。 [0012] 所述板狀保護結構106的材料不限，只需滿足其具有較好 的耐熱性能即町^優選地’所述板狀保護結構1 0 6具有較 高的聲音透過率。所述板狀保護結構106的形狀不限’可 為一平面也可為/曲面。當所述板狀保護結構106為一平 面時，所述板狀保護結構106與熱發聲膜102可進一步通 過一支撐體間隔設置°具體地，該支撐體可設置在熱發 聲膜102的兩側’板狀保護結構106設置在支撐體上。當 所述板狀保護緒構1〇6為一曲面，如半圓形或弧形時，所 述熱發聲膜102玎通過所述第一電極104a和第二電極 104b直接部分懸空設置在兩板狀保護結構“^之間。所述 板狀保護結構106的材料可選擇為導電材料，如金屬，也 可為絕緣材料，如塑膠、塑膠等。所述金屬包括不銹鋼 、碳鋼、銅、鎳、鈦、鋅及鋁等中的一種或多種。所述 板狀保護結構1〇6可為一多孔結構，如栅網，也可為一無 孔結構，如玻璃板等。本發明實施例中所述板狀保護 結構106為塑膠柵網，所述板狀保護結構1〇6具有一弧形 曲面1064以及兩個延伸部1062。所述弧形曲面1〇64具有 夕個孔1069。所述板狀保護結構的通孔總面積占該板 1013375827-0 哪18#單编號Α〇101 101年.09月28日修正替換頁 狀保護结構的面積的百分比可大於〇%小於100%，優選地 ’所述板狀保護結構106的通孔總面積占該板狀保護结構 的面積的百分比在20%至99%之間。該多個礼1〇69的分佈 不限且礼1069的形狀不限。所述延伸部1062為方形結構 。所述兩個延伸部1062可相互平行並通過所述弧形曲面 1064連接在一起。所述延伸部1〇62具有設置所述第一電 極104a和第二電極i〇4b的凹槽1066 ^所述兩個板狀保護 結構106可通過所述延伸部1〇2固定。所述兩個板狀保護 結構106的固定方式不限，可通過螺栓、黏結、鉚接等方 式固定。本實施例中，所述延伸部具有多個通孔 1 068，所述兩個板狀保護結構106可採用螺栓固定◊優選 地，所述延伸部1 062在其相對的兩端具有兩個通孔1〇68 [0013]另外’由於所述板狀保護結構106具有弧形曲面，故所述 熱發聲膜102可通過所述第一電極i〇4a和第二電極1〇4b 與所述板狀保護結構106間隔設置。由於所述板狀保護結 構106為多孔結構’故所述板狀保護結構1〇6不會影響所 述熱發聲臈102與週圍介質之間的熱交換，進而不會影響 所述熱發聲膜102的發聲效果。 [0014]所述第一電極104a和第二電極1 〇4b的兩端設置在所述凹 槽1066尹。所述第一電極l〇4a和第二電極1〇4b通過所述 板狀保護結構106支撐。所述第一電極i〇4a和第二電極 l〇4a由導電材料形成，其形狀可為棒狀或條狀。具體地 ，所述第一電極104a和第一電極104a的材料可選擇為金 屬、金屬性奈米碳管等《其中，所述金屬包括不銹鋼、 多單編號 〇97ΐ5ΐ83(Γ 第7頁/共31頁 1013375827-0 1379286 101年09月28日梭正春换頁 鎢、銅、鉬或銀等。本發明實施例中，所述第一電極 l〇4a和第二電極l〇4a為棒狀不錄鋼電極。所述第一電極 104a和第二電極1〇4a用於支撐所述熱發聲膜丨並輸入 訊號至所述熱發聲膜102。所輸入的訊號包括交流電訊號 或曰頻電訊號等。由於所述第一電極1〇4a和第二電極 1〇4b間隔設置，所述熱發聲膜102應用於發聲裝置10時 能接入〜定的阻值避免短路現象產生。 [0015] 所述發聲裝置10可進一步包括多個第一電極104a及多個 第一電極l〇4b»所述第一電極i〇4a和第二電極l〇4b交替 間隔設置，即任意兩個相鄰的第一電極l〇4a之間有一個 第二電極l〇4b ’且任意兩個相鄰的第二電極l〇4b之間有 一個第一電極l〇4a ^優選地，所述多個第一電極i〇4a和 多個第二電極l〇4b之間的距離相等。進一步地，所述多 個第一電極104a可電連接，所述多個第二電極1〇4b可電 連接。具體地’所述多個第一電極1〇4a可通過導線電連 接後作為一訊號輸入端，所述多個第二電極104b可通過 導線電連接後作為另一訊號輸入端。使用時，可通過上 述兩個訊號輸入端輸入電訊號至所述熱發聲膜102。上述 連接方式可實現相鄰電極之間的熱發聲膜102的並聯。並 聯後的熱發聲膜102的電阻小於並聯前熱發聲膜1〇2的電 阻，可降低工作電壓。 [0016] 本實施例中’所述發聲裝置10包括一個第一電極104a和 一個第二電極l〇4b。所述第一電極i〇4a和第二電極l〇4b 間隔設置。所述熱發聲膜102設置在所述第一電極104a和 第二.電極l〇4b之間，且與所述第一電極i〇4a和第二電極 09715183^^ A〇101 第8頁·/共31頁 1013375827-0 1.379286 __ 1〇ί年.09月28日梭正替&頁 104b電連接。 [00Π] 另外，所述第一電極i〇4a和第二電極104b與所述熱發聲 膜102之間還可以進一步包括一導電黏結層（圖未示）。所 述導電黏結層可設置於所述熱發聲膜102與電極相接觸的 表面。所述導電黏結層可實現所述第一電極l〇4a和第二 電極104b與所述熱發聲膜102之間更好地電接觸，另外， 還可使所述熱發聲膜102更好地固定於所述第一電極i〇4a 和第二電極104b。本實施例中，所述導電黏結層為一層 銀膠β [0018] 所述熱發聲膜102可包括一奈米碳管結構。該奈米碳管結 構包括多個奈米碳管。所述奈米碳管結構為一自支撐結 構。所謂自支撐結構即奈米碳管結構中的多個奈米碳管 間通過凡德瓦爾力相互吸引，從而使奈米碳管結構具有 特定的形狀。 [0019] 所述奈米碳管結構為層狀且具有較大的比表面積。所述 奈米碳管結構的厚度為〇. 5奈米~丨毫米。優選地，該奈米 碳管結構的厚度為5〇奈米。所述奈米碳管結構的單位面 積熱容可小於2x1 (Γ4焦耳每平方釐米開爾文。優選地， 所述奈米碳管結構的單位面積熱容小於1.7xl〇_6焦耳每 平方釐米開爾文。所述奈米碳管結構中的奈米碳管包括 單壁奈米碳管、雙壁奈米碳管及多壁奈米碳管中的一種 或多種。所述單壁奈米碳管的直徑為0. 5奈米〜50奈米， 所述雙壁奈米碳官的直徑為1.0奈米〜奈米，所述多壁 奈米碳管的直徑為1.5奈米〜50奈米。 09715183(^^^^ A0101 第 9 頁 / 共 31 頁 1013375827-0 1379286 101年.09月28日梭正替換頁 [0020] 所述奈米碳管結構可包括至少一奈米碳管膜。具體地， 所述奈米碳管結構可包括多個平行且無間隙鋪設或/和重 疊鋪設的奈米碳管膜。所述奈米碳管膜包括多個均勻分 佈的奈米碳管，奈米碳管之間通過凡德瓦爾力緊密結合 。該奈米碳管膜中的奈米碳管可為有序排列。所謂有序’ 係指奈米碳管的排列方向有規則。具體地，所述奈米碳 管膜可通過拉取一奈米碳管陣列直接獲得。該奈米碳管 膜包括多個擇優取向排列的奈米碳管，且奈米碳管之間 通過凡德瓦爾力首尾相連。具體地，每一奈米碳管膜包 括多個連續且定向排列的奈米碳管片段。該多個奈米碳 管片段通過凡德瓦爾力首尾相連。每一奈米碳管片段包 括多個相互平行的奈米碳管，該多個相互平行的奈米碳 管通過凡德瓦爾力緊密結合。該奈米碳管片段具有任意 的寬度、厚度、均勻性及形狀。所述奈米碳管膜的厚度 為0. 5奈米~100微米。該奈米碳管膜中的奈米碳管沿同一 方向擇優取向排列。所述單層奈米碳管膜具有較好的透 光度，其透光度為67%〜95%。可以理解，通過將多個奈米 碳管膜平行且無間隙鋪設或/和重疊鋪設，可以製備不同 面積與厚度的奈米碳管結構。當奈米碳管結構包括多個 重疊設置的奈米碳管膜時，相鄰的奈米碳管膜中的奈米 碳管的排列方向形成一夾角召，且0° β 90°。相鄰兩 層奈米碳管膜之間通過凡德瓦爾力緊密結合。該多層奈 米碳管膜具有較好的機械強度和韌性" [0021] 本實施例中，所述作為熱發聲膜102的奈米碳管結構包括 一層奈米碳管膜。奈米碳管在該奈米碳管結構中沿同一 _183(Ρ编號 Α0101 第10頁/共31頁 1013375827-0 Γ379286 101年09月28日梭正替换頁 方向擇優取向排列。優選地，所述奈米碳管沿所述第一 電極104a至第二電極l〇4b的方向擇優取向排列。儅具有 多個第一電極104a和多個第二電極104b時，所述第一電 極1 04a和第二電極1 04b之間應具有一基本相等的間距， 從而使所述第一電極104a和第二電極104b之間的奈米碳 管能夠具有一基本相等的電阻值。所述奈米碳管可沿基 本垂直該所述第一電極104a和第二電極104b的長度方向 排列。所述奈米碳管結構的厚度為50奈米。由於奈米碳 管具有極大的比表面積，在凡德瓦爾力的作用下，該奈 米碳管結構本身有很好的黏附性，故採用該奈米碳管結 構作熱發聲膜102時，所述第一電極104a和第二電極 104b與所述熱發聲膜102之間可以直接黏附固定，並形成 很好的電接觸。 [0022] 所述熱發聲膜102的工作介質不限，只需滿足其電阻率大 於所述熱發聲膜102的電阻率即可。所述介質包括氣態介 質或液態介質。所述氣態介質包括空氣。所述液態介質 包括非電解質溶液、水及有機溶劑等中的一種或多種。 其中，所述水包括純淨水、自來水、淡水及海水，所述 有機溶劑包括甲醇、乙醇及丙酮等。本實施例中，所述 介質為空氣，所述熱發聲膜106可較好地與空氣進行熱交 換，所述熱發聲膜106在空氣中具有較好的發聲效果。 [0023] 上述發聲裝置10在使用時，由於奈米碳管結構由均勻分 佈的奈米碳管組成，且該奈米碳管結構為層狀、具有較 大的比表面積，故該奈米碳管結構具有較小的單位面積 熱容和較大的散熱表面，在輸入訊號後，奈米碳管結構 術15183产單編號A0101 第11頁/共31頁 1013375827-0 1379286 101年.09月28日梭正替換頁 可迅速升降溫，產生週期性的溫度變化，並和週圍介質 快速進行熱交換，使週圍介質的密度週期性地發生改變 ，進而發出聲音。所述熱發聲膜1〇2的發聲原理為“電_ 熱-聲”的轉換。 [0024] 本發明實施例提供的發聲裝置1〇的聲壓級大於5〇分貝每 瓦聲壓級，發聲頻率範圍為1赫茲至1〇萬赫茲（即 ΙΗζ-lOOkHz)。所述發聲裝置在5〇〇赫茲_4萬赫茲頻率 範圍内的失真度可小於3%»當採用A4紙大小的單層碳奈 米膜用作所述熱發聲膜102時，將一麥克風設置在距離熱 發聲膜5釐米的位置，輸入電壓為5〇伏時，所測得的發聲 裝置10的發聲頻率大於等於100赫茲且小於等於1〇萬赫茲 ，發聲強度大於50分貝每瓦聲壓級。所述發聲裝置1〇的 發聲頻率範圍較寬，強度較大，發聲效果較好。 [0025] 請參閱圖4至圖5，本發明第二實施例提供一種發聲裝置 20，該發聲裝置20包括一熱發聲膜2〇2、至少一第一電極 204a、至少一第二電極204b、兩個板狀保護結構206以 及一封裝結構208 » [0026] 本發明第二實施例提供的發聲裝置2〇與第一實施例的發 聲裝置10的區別在於所述兩個板狀保護結構2〇6通過兩個 側板2062和一個底板2064連接在一起，形成一具有一端 開口的盒狀結構。所述兩個板狀保護結構2〇6具有多個通 孔β所述側板2062和底板2064的結構不限，可為無孔結 構’也可和所述兩個板狀保護結構206的結構相同，即具 有多個通孔。所述兩個板狀保護結構2〇6、兩個側板2062 以及一底板2064圍成一容置部2066。所述封裝结構208 09715183#單编號Α〇1ίη 第12頁/共31頁 1013375827-0 Γ379286 101年·09月28日按正_頁 與所述兩個板狀保護結構2〇6形成的盒狀結構的開口形狀 大小一致。所述封裝結構208可將所述兩個板狀保護結構 206形成的盒狀結構的開口封裝。所述至少一第一電極 204a和至少一第二電極2〇4b間隔固定設置在所述封裝結 構208上並延伸入所述容置部2066。所述熱發聲膜202設 置在所述第一電極204a和第二電極204b之間，且通過所 述第一電極204a和第二電極2〇4b固定。所述熱發聲臈 202設置在所述容置部2066中。本實施例中，所述發聲裝 置20包括一第一電極2〇4a和一第二電極204b。 [0027]所述盒狀結構與所述封裝結構2〇8進行封裝的方式不限， 如可通過螺栓或卡扣固定。本實施例中，所述盒狀結構 與所述封裝結構208通過螺栓固定。具體地，所述盒狀結 構在其開口處具有多個沿垂直於側板2〇62的方向向外延 伸的多個封裝孔2068。所述封裝結構2〇8具有與所述盒狀 結構的纣裝孔2068相對應的多個封裝孔2〇82。本實施例 中所述保護結構2〇6具有四個封裝孔2068，所述封裝結 構208具有四個封裝孔2〇82。封裝時，將所述盒狀結構的 封裝孔2068與所述封裝結獅8的料孔·對準用 螺栓固定即可。 _]所述封裝結構2〇8可與所述第一電極心和第二電極 2〇4b一體設置。優選地，所述第一電極2〇4a和第二電極 祕與所述封裝結構208垂直。所述封裝結構議的材料 可選擇為絕緣材料或導電材料。當所述封裝結構208的材 枓為導電材料時，須確保所述封裝結構2〇8與所述第一電 極2043及所述第二電極祕中的一個電極電絕緣。具體 09715183#單編號 A01〇l 第13頁/共31頁 1013375827-0 1379286 101年09月28日接正替换頁 地所述封裝結構2〇8可具有多個通孔，當所述封裝結構 208與所述第一電極204a電連接，與所述第二電極204b 電絕緣時，設置所述第二電極204b的通孔可進一步塗敷 一絕緣塗層或***一絕緣固定元件。 [0029] 當所述發聲裝置20包括多個第一電極204a和多個第二電 極204b時，需確保所述多個第一電極2〇4a電連接，所述 多個第二電極2〇4b電連接，第一電極2〇4a和第二電極 2〇4b電絕緣。 [0030] 凊參閱圖6至圖7，本發明第三實施例提供一種發聲裝置 30，該發聲裝置3〇包括一熱發聲膜322、至少一第一電極 324a、至少一萆二電極μα、一電極支撑結構326、以 及兩個板狀保護結構34。所述板狀保護結構34可進一步 包括一邊框（圖未示）。所述熱發聲膜322設置在所述第 一電極324a和第二電極324b之間並通過所述第一電極 324a和第二電極324b固定。 [0031] 本發明第三實施例提供的發聲裝置3〇與第一實施例中的 發聲裝置10的區別在於，所述發聲裝置30包括一電極支 稽'、、·。構326以及兩個板狀保護結構34。所述熱發聲膜322 、至少一第一電極324a、至少一第二電極324b和電極支 撐結構326組成一發聲單元32。所述第一電極324a和第 二電極324b通過所述電極支撐結構326支撐。所述保護結 構34具有一邊框（圖未示）。所述板狀保護結構34和所 述電極支撐結構326可通過卡扣固定。所述兩個板狀保護 結構34設置在所述發聲單元32的兩側。 09715183(^^^ A0101 第14頁/共31頁 1013375827-0 10/^286 [0032]Loudspeakers", Shoushan Fan et al., Nano Letters 'Vol. 8 (12), 4539-4545 (2008). Referring to Figure 1, the sounding device 100 includes a thermal sounding film 120, a first electrode 140, and a The second electrode 160. The first electrode 140 and the second electrode 160 are used for inputting signals to the thermal sizzle 120. The thermal ac acoustic film 12 is a carbon nanotube film. Both ends of the thermal ac acoustic film 120 The first electrode 140 and the second electrode 160 are fixed and suspended by the first electrode 140. Since the carbon nanotube film has a large specific surface area and a small heat capacity per unit area, the heat capacity per unit area is less than 2χ10_4 joules per square centimeter Kelvin. The carbon nanotube film disposed in the suspended space can exchange heat with the surrounding medium, and the sound generating device using the carbon nanotube film as the thermal sounding film 120 can emit sound in a wide frequency range. The vocal intensity is higher and the sounding effect is better. [0005] The above-mentioned thermoacoustic film 120 can also be directly disposed on a glass plate through which one side is protected. However, when the thermal ac acoustic film 120 is completely affixed to the glass 'The hot sound when the surface of the board Most of the heat generated by the membrane 120 is conducted by the glass plate and cannot be used to heat the air. In addition, only one side of the thermoacoustic film 120 attached to the surface of the glass plate is in contact with the air, so that heat exchange with the air is reduced, thereby affecting the heat generation. The vocalization effect of the film 120. Further, the above document does not disclose a protective structure for providing protection to both sides of the thermal ac acoustic film 12A without affecting the vocalization effect of the thermal ac acoustic film 120, the thermoacoustic film 120 being at least A surface is directly exposed to the air and is easily damaged. [Abstract] 〇971518# single reduction surface 1 page 4 / total 31 page 1013375827-0 1379286 101 year. September 28 revision replacement page [0006] In view of this It is indeed necessary to provide a sounding device having a protective structure that provides protection to both sides of the thermal acoustic film without affecting the sounding effect of the thermal acoustic film. [0007] A sounding device comprising: at least one An electrode and at least one second electrode, the first electrode and the second electrode are disposed apart from each other; and a thermal sounding film electrically connected to the first electrode and the second electrode The sounding device further includes two plate-shaped protection structures disposed on opposite sides of the thermal sounding film. [0008] A sounding device comprising: at least a first electrode and At least one second electrode, the first electrode and the second electrode are disposed apart from each other; and a thermal sounding film electrically connected to the first electrode and the second electrode; wherein the sounding device further comprises two A porous plate-shaped protective structure is disposed on opposite sides of the thermoacoustic film. [0009] Compared with the prior art, the plate-shaped protective structure is disposed on both sides of the thermal acoustic film, and the plate-shaped protective structure can be The thermoacoustic film acts as a protective agent to make the thermoacoustic film less susceptible to damage. In addition, since the plate-shaped protection structure is disposed on both sides of the thermosonic film, the plate-shaped protection structure does not affect heat exchange between the thermosonic film and the surrounding medium, and thus does not affect the thermal vocalization. The sounding effect of the film. [Embodiment] [0010] Hereinafter, a sound emitting device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. [0011] Referring to FIG. 2 to FIG. 3, a first embodiment of the present invention provides a sounding device 10, which includes a thermal sounding film 102, at least one first electrode 104a, at least one second electrode 104b, and two A plate-like protective structure 106. 09715183Production Single Weaving A〇101 Page 5 of 31 Page 1013375827-0 1379286 ---- On September 28, 101, the replacement of at least one of the first electrode 104a and the at least one second electrode 104b The plate-shaped protective structure is fixed. The thermal ac acoustic film 1 〇 2 is disposed between the first electrode 104a and the first electrode 〇4_b' and is fixed by the first electrode 104a and the second electrode 10. The thermoacoustic film 102 can receive sound waves from the signals input by the first electrode 104a and the second electrode 104b. The two plate-like protective structures 1〇6 are disposed on both sides of the thermal acoustic film 102. [0012] The material of the plate-shaped protective structure 106 is not limited, and it is only required to have a good heat resistance, that is, the plate-like protective structure 106 has a high sound transmittance. The shape of the plate-like protective structure 106 is not limited to a plane or a curved surface. When the plate-shaped protective structure 106 is a flat surface, the plate-shaped protective structure 106 and the thermal-acoustic film 102 may be further disposed by a support. Specifically, the support may be disposed on both sides of the thermal-acoustic film 102. The plate-like protective structure 106 is disposed on the support. When the slab protection structure 1〇6 is a curved surface, such as a semicircular shape or an arc shape, the thermal ac acoustic film 102 直接 is directly suspended by the first electrode 104a and the second electrode 104b on the two plates. The material of the plate-shaped protective structure 106 may be selected from a conductive material such as a metal or an insulating material such as plastic, plastic, etc. The metal includes stainless steel, carbon steel, copper, nickel. One or more of titanium, zinc, aluminum, etc. The plate-shaped protective structure 1〇6 may be a porous structure, such as a grid or a non-porous structure, such as a glass plate, etc. Embodiments of the invention The plate-shaped protective structure 106 is a plastic grid, and the plate-shaped protective structure 1〇6 has an arc-shaped curved surface 1064 and two extending portions 1062. The curved curved surface 1〇64 has an evening hole 1069. The total area of the through hole of the plate-shaped protection structure occupies the plate 1013375827-0. Which 18# single number Α〇 101 101. September 28th The percentage of the area of the replacement page-shaped protection structure may be greater than 〇% less than 100%, Preferably, the total area of the through holes of the plate-shaped protective structure 106 occupies the plate-shaped protective joint The percentage of the area of the structure is between 20% and 99%. The distribution of the plurality of gifts is not limited and the shape of the gift 1069 is not limited. The extension 1062 is a square structure. The two extensions 1062 may Parallel to each other and connected together by the curved curved surface 1064. The extending portion 1〇62 has a recess 1066 in which the first electrode 104a and the second electrode i〇4b are disposed. The two plate-shaped protective structures 106 The fixing of the two plate-shaped protection structures 106 is not limited, and may be fixed by bolts, bonding, riveting, etc. In this embodiment, the extension has multiple passes. Hole 1 068, the two plate-like protection structures 106 may be bolted, preferably, the extensions 1 062 have two through holes 1 〇 68 at opposite ends thereof [0013] additionally 'due to the plate The protective structure 106 has a curved curved surface, so that the thermal acoustic film 102 can be spaced apart from the plate-shaped protective structure 106 by the first electrode i4a and the second electrode 1〇4b. The structure 106 is a porous structure, so the plate-shaped protective structure 1〇6 does not affect the The heat exchange between the heat generating cymbal 102 and the surrounding medium does not affect the sounding effect of the thermal ac acoustic film 102. [0014] Both ends of the first electrode 104a and the second electrode 1 〇 4b are disposed at the same The first electrode 104a and the second electrode 1〇4b are supported by the plate-shaped protective structure 106. The first electrode i4a and the second electrode 104a are formed of a conductive material. The shape of the first electrode 104a and the first electrode 104a may be selected from a metal, a metallic carbon nanotube, etc., wherein the metal includes stainless steel, and more No. ΐ97ΐ5ΐ83(Γ Page 7/31 pages 1013375827-0 1379286 On September 28, 101, Shuttle Zhengchun changed pages of tungsten, copper, molybdenum or silver. In the embodiment of the invention, the first electrode 10a and the second electrode 10a are rod-shaped electrodes. The first electrode 104a and the second electrode 110a are for supporting the thermal acoustic film 丨 and inputting a signal to the thermal ac acoustic film 102. The input signal includes an AC signal or a frequency signal. Since the first electrode 1〇4a and the second electrode 1〇4b are spaced apart, the thermoacoustic film 102 can be applied to the sounding device 10 to prevent a short circuit from occurring. [0015] The sounding device 10 may further include a plurality of first electrodes 104a and a plurality of first electrodes 104b»the first electrodes i〇4a and the second electrodes 104b are alternately arranged, that is, any two There is a second electrode 104b' between the adjacent first electrodes 104a and a first electrode 104a between any two adjacent second electrodes 104b. Preferably, the plurality The distance between the first electrodes i〇4a and the plurality of second electrodes 104b is equal. Further, the plurality of first electrodes 104a may be electrically connected, and the plurality of second electrodes 1〇4b may be electrically connected. Specifically, the plurality of first electrodes 1〇4a can be electrically connected by wires to serve as a signal input terminal, and the plurality of second electrodes 104b can be electrically connected by wires to serve as another signal input terminal. In use, an electrical signal can be input to the thermal acoustic film 102 through the two signal input terminals. The above connection method can realize the parallel connection of the thermal acoustic film 102 between adjacent electrodes. The resistance of the combined thermal acoustic film 102 is smaller than the resistance of the thermal acoustic film 1〇2 before the parallel connection, and the operating voltage can be lowered. [0016] In the present embodiment, the sounding device 10 includes a first electrode 104a and a second electrode 104b. The first electrode i〇4a and the second electrode 104b are spaced apart. The thermal sounding film 102 is disposed between the first electrode 104a and the second electrode 104b, and with the first electrode i〇4a and the second electrode 09715183^^A〇101 page 8·/ A total of 31 pages 1013375827-0 1.379286 __ 1〇ί年. On September 28th, Shuttle Bust & Page 104b is electrically connected. In addition, a conductive adhesive layer (not shown) may be further included between the first electrode i〇4a and the second electrode 104b and the thermal acoustic film 102. The conductive bonding layer may be disposed on a surface of the thermoacoustic film 102 in contact with the electrode. The conductive bonding layer can achieve better electrical contact between the first electrode 104a and the second electrode 104b and the thermal acoustic film 102. In addition, the thermoacoustic film 102 can be better fixed. The first electrode i〇4a and the second electrode 104b. In this embodiment, the conductive bonding layer is a layer of silver colloid β. [0018] The thermoacoustic film 102 may include a carbon nanotube structure. The carbon nanotube structure includes a plurality of carbon nanotubes. The carbon nanotube structure is a self-supporting structure. The so-called self-supporting structure, that is, the plurality of carbon nanotubes in the carbon nanotube structure, is attracted to each other by the van der Waals force, so that the carbon nanotube structure has a specific shape. [0019] The carbon nanotube structure is layered and has a large specific surface area. The thickness of the carbon nanotube structure is 〇. 5 nm to 丨 mm. Preferably, the carbon nanotube structure has a thickness of 5 nanometers. The carbon nanotube structure may have a heat capacity per unit area of less than 2x1 (Γ4 joules per square centimeter Kelvin. Preferably, the carbon nanotube structure has a heat capacity per unit area of less than 1.7 x 1 〇 6 joules per square centimeter Kelvin. The carbon nanotubes in the carbon nanotube structure include one or more of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled carbon nanotube. The diameter of the single-walled carbon nanotube The diameter of the double-walled nanocarbon is 1.0 nm to nanometer, and the diameter of the multi-walled carbon nanotube is 1.5 nm to 50 nm. 09715183 ( ^^^^ A0101 Page 9 of 31 1013375827-0 1379286 101. September 28th Shuttle Replacement Page [0020] The carbon nanotube structure may include at least one carbon nanotube film. Specifically, The carbon nanotube structure may comprise a plurality of parallel and gap-free laying or/and overlapping laying of carbon nanotube membranes. The carbon nanotube membrane comprises a plurality of uniformly distributed carbon nanotubes, carbon nanotubes It is closely combined by Van der Valli. The carbon nanotubes in the carbon nanotube membrane can be ordered. The so-called ordered 'system The arrangement direction of the carbon tubes is regular. Specifically, the carbon nanotube film can be directly obtained by pulling an array of carbon nanotubes, and the carbon nanotube film comprises a plurality of carbon nanotubes arranged in a preferred orientation, and The carbon nanotubes are connected end to end by van der Waals force. Specifically, each carbon nanotube membrane comprises a plurality of continuous and aligned carbon nanotube fragments. The plurality of carbon nanotube fragments are passed through Van der Waals The force is connected end to end. Each carbon nanotube segment comprises a plurality of mutually parallel carbon nanotubes, and the plurality of mutually parallel carbon nanotubes are tightly coupled by van der Waals force. The carbon nanotube segments have an arbitrary width The thickness of the carbon nanotube film is from 0.5 nm to 100 μm. The carbon nanotubes in the carbon nanotube film are arranged in a preferred orientation along the same direction. The carbon nanotube film has good light transmittance and the transmittance is 67%~95%. It can be understood that different silicon carbon nanotube films can be prepared by laying parallel or gapless laying and/or overlapping laying. Area and thickness of the carbon nanotube structure. When the carbon nanotube structure When a plurality of carbon nanotube films are arranged in an overlapping manner, the arrangement direction of the carbon nanotubes in the adjacent carbon nanotube film forms an angle angle, and 0° β 90°. Adjacent two layers of carbon nanotubes The membranes are tightly bonded by van der Waals force. The multilayered carbon nanotube membrane has good mechanical strength and toughness " [0021] In this embodiment, the carbon nanotube structure as the thermal ac acoustic membrane 102 includes A layer of carbon nanotube film. The carbon nanotubes in the structure of the carbon nanotubes along the same _183 (Ρ Α 0101 page 10 / total 31 pages 1013375827-0 Γ 379286 101 September 2007 shuttle replacement page direction Preferably, the carbon nanotubes are arranged in a preferred orientation along the direction of the first electrode 104a to the second electrode 104b. When having a plurality of first electrodes 104a and a plurality of second electrodes 104b, the first electrode 104a and the second electrode 104b should have a substantially equal spacing therebetween, thereby causing the first electrodes 104a and The carbon nanotubes between the two electrodes 104b can have a substantially equal resistance value. The carbon nanotubes may be arranged substantially perpendicular to the longitudinal direction of the first electrode 104a and the second electrode 104b. The carbon nanotube structure has a thickness of 50 nm. Since the carbon nanotube has a very large specific surface area, the carbon nanotube structure itself has good adhesion under the action of the van der Waals force, so when the carbon nanotube structure is used as the thermal sounding film 102, The first electrode 104a and the second electrode 104b and the thermosonic film 102 can be directly adhered and fixed, and form a good electrical contact. [0022] The working medium of the thermal-acoustic film 102 is not limited, and only needs to satisfy a resistivity higher than that of the thermal-acoustic film 102. The medium comprises a gaseous medium or a liquid medium. The gaseous medium includes air. The liquid medium includes one or more of a non-electrolyte solution, water, an organic solvent, and the like. Wherein, the water comprises purified water, tap water, fresh water and sea water, and the organic solvent comprises methanol, ethanol, acetone and the like. In this embodiment, the medium is air, and the thermal sounding film 106 is preferably thermally exchanged with air, and the thermal sounding film 106 has a good sounding effect in the air. [0023] When the sounding device 10 is in use, since the carbon nanotube structure is composed of a uniformly distributed carbon nanotube, and the carbon nanotube structure is layered and has a large specific surface area, the nanocarbon is used. The tube structure has a small heat capacity per unit area and a large heat dissipation surface. After inputting the signal, the carbon nanotube structure is 15183. The production number is A0101. Page 11/31 pages 1013375827-0 1379286 101.09.28 The Hiroshi is replacing the page to quickly raise and lower the temperature, produce periodic temperature changes, and quickly exchange heat with the surrounding medium to periodically change the density of the surrounding medium to produce a sound. The principle of sounding of the thermoacoustic film 1〇2 is “electrical-thermal-acoustic” conversion. [0024] The sound pressure level of the sounding device 1〇 provided by the embodiment of the present invention is greater than 5 〇 decibels per watt sound pressure level, and the sounding frequency ranges from 1 Hz to 1 10,000 Hz (ie, ΙΗζ-100 kHz). The sounding device may have a distortion of less than 3% in a frequency range of 5 Hz to 40,000 Hz. » When a single-layer carbon nanofilm having an A4 paper size is used as the thermal ac acoustic film 102, a microphone is set. When the input voltage is 5 volts from the position of 5 cm from the thermal vocal membrane, the measured sounding frequency of the sounding device 10 is greater than or equal to 100 Hz and less than or equal to 1 10,000 Hz, and the vocal intensity is greater than 50 dB per watt of sound pressure level. . The sounding device 1 has a wide range of sounding frequencies, a large intensity, and a good sounding effect. [0025] Referring to FIG. 4 to FIG. 5, a second embodiment of the present invention provides a sound emitting device 20, which includes a thermal sounding film 2〇2, at least a first electrode 204a, and at least a second electrode 204b. Two plate-shaped protection structures 206 and a package structure 208 » The sound-emitting device 2 提供 provided by the second embodiment of the present invention is different from the sound-emitting device 10 of the first embodiment in that the two plate-shaped protection structures 2 〇 6 is connected together by two side plates 2062 and one bottom plate 2064 to form a box-like structure having an opening at one end. The two plate-shaped protective structures 2〇6 have a plurality of through holes β. The structures of the side plates 2062 and the bottom plate 2064 are not limited, and may be a non-porous structure or may be the same as the structure of the two plate-shaped protective structures 206. That is, there are a plurality of through holes. The two plate-shaped protective structures 2〇6, the two side plates 2062 and a bottom plate 2064 define a receiving portion 2066. The package structure 208 09715183#单号Α〇1ίη Page 12/31 pages 1013375827-0 Γ379286 101 years/September 28th according to the positive page and the two plate-shaped protective structures 2〇6 The shape of the opening of the structure is uniform. The package structure 208 can encapsulate the opening of the box-like structure formed by the two plate-shaped protection structures 206. The at least one first electrode 204a and the at least one second electrode 2〇4b are fixedly disposed on the package structure 208 and extend into the accommodating portion 2066. The thermal ac acoustic film 202 is disposed between the first electrode 204a and the second electrode 204b, and is fixed by the first electrode 204a and the second electrode 2〇4b. The thermal squeal 202 is disposed in the accommodating portion 2066. In this embodiment, the sounding device 20 includes a first electrode 2〇4a and a second electrode 204b. [0027] The manner in which the box-like structure and the package structure 2〇8 are packaged is not limited, as may be fixed by bolts or snaps. In this embodiment, the box-like structure and the package structure 208 are fixed by bolts. Specifically, the box-like structure has a plurality of package holes 2068 extending outward in a direction perpendicular to the side plates 2〇62 at its opening. The package structure 2〇8 has a plurality of package holes 2〇82 corresponding to the armor holes 2068 of the box structure. The protective structure 2〇6 in this embodiment has four package holes 2068, and the package structure 208 has four package holes 2〇82. At the time of packaging, the package hole 2068 of the box-like structure may be fixed to the hole of the package lion 8 for alignment. The package structure 2〇8 may be integrally provided with the first electrode core and the second electrode 2〇4b. Preferably, the first electrode 2A4a and the second electrode are perpendicular to the package structure 208. The material of the package structure may be selected as an insulating material or a conductive material. When the material of the package structure 208 is a conductive material, it is necessary to ensure that the package structure 2〇8 is electrically insulated from one of the first electrode 2043 and the second electrode. Specific 09115183#Single number A01〇l Page 13 of 31 Page 1013375827-0 1379286 The replacement structure of the package structure 2〇8 may have a plurality of through holes when the package structure 208 is replaced by the replacement page. When electrically connected to the first electrode 204a and electrically insulated from the second electrode 204b, the through hole provided with the second electrode 204b may be further coated with an insulating coating or inserted into an insulating fixing member. [0029] When the sounding device 20 includes a plurality of first electrodes 204a and a plurality of second electrodes 204b, it is necessary to ensure that the plurality of first electrodes 2〇4a are electrically connected, and the plurality of second electrodes 2〇4b Electrically connected, the first electrode 2〇4a and the second electrode 2〇4b are electrically insulated. [0030] Referring to FIG. 6 to FIG. 7, a third embodiment of the present invention provides a sounding device 30, which includes a thermal sounding film 322, at least one first electrode 324a, at least one second electrode μα, and one Electrode support structure 326, and two plate-like protection structures 34. The plate-like protection structure 34 may further include a frame (not shown). The thermal ac acoustic film 322 is disposed between the first electrode 324a and the second electrode 324b and is fixed by the first electrode 324a and the second electrode 324b. The sound emitting device 3A provided by the third embodiment of the present invention is different from the sound emitting device 10 of the first embodiment in that the sound generating device 30 includes an electrode support ', . Structure 326 and two plate-like protection structures 34. The thermal sounding film 322, the at least one first electrode 324a, the at least one second electrode 324b, and the electrode supporting structure 326 constitute a sounding unit 32. The first electrode 324a and the second electrode 324b are supported by the electrode support structure 326. The protective structure 34 has a frame (not shown). The plate-like protective structure 34 and the electrode support structure 326 can be fixed by snaps. The two plate-like protection structures 34 are disposed on both sides of the sounding unit 32. 09715183(^^^ A0101 Page 14 of 31 1013375827-0 10/^286 [0032]
[ϊ〇1年.09月28日核正替^頁I 所述電極支撐結構326可為兩相互平行的條狀結構或—具 有一定厚度的框狀結構。所述電極支撐結構326的材料不 限，可以為絕緣材料，如金剛石、玻璃、木質材料石 英、塑膠及樹脂等，也可為導電材料，如金屬等。當所 述電極支撐結構326為導電材料時，且所述發聲裝置3〇包 括一第一電極324a和一第二電極3241)時，需確保所述第 —電極324a和第二電極324b中的一個電極與所述電極支 撐結構326電絕緣。當所述電極支撐結構326為導電材料 時，且所述發聲裝置30包括多個第一電極32牦和多個第 —電極324b時，需確保所述所述電極支撐結構326與多個 第一電極324a電連接，與多個第二電極324b電絕緣，或 與多個第二電極324b電連接，與多個第一電極324a電絕 緣。本發明實施例中，所述電極支撐結構326的材料為塑 膠，且其為一方形框狀結構。該電極支撐結構326的厚度 需大於所述第一電極324a或第二電極324b的直徑與熱發 聲膜322的厚度之和。所述電極支撐結構326在其兩相對 的表面分別具有至少兩個與電極相相應的通孔。所述第 一電極324a及第二電極324b的兩端可分別穿過所述通孔 ，進而通過所述電極支撐結構326支撐。優選地，所述通 孔的設置需確保第一電極324a及第二電極324b平行且間 隔設置。 [0033] 所述板狀保護結構34與所述電極支撐結構326的固定方式 不限’如可通過螺栓固定或卡扣固定。本實施例中，所 述板狀保護結構34與所述電極支撐結構326通過卡扣固定 。具體地’所述第一電極324a和第二電極324b可與所述 097⑸8#單编號A〇101 第巧頁/共31頁 1013375827-0 1379286 101年09月28日俊正替換百 電極支撐結構326的兩相對的側臂垂直，該側臂具有所述 多個孔。所述電極支撐結構326在其與所述第一電極324a 和第二電極324b相平行的兩側壁上至少具有一卡扣3262 ，所述板狀保護結構34具有與所述電極支樓結構326的卡 扣3262相對應的卡槽344。該卡扣3262與所述卡槽342相 匹配，以使所述板狀保護結構3 4與所述電極支樓結構3 2 6 固疋。所述卡扣3262在所述電極支樓結構326上的位置不 限，只需其與卡槽344相對應即可。優選地，所述卡扣 3262設置在所述電極支揮結構326與所述第一電極324a 和第一電極324b相平行的兩側壁，且其中一個卡扣3262 靠近所述電極支撐結構326與所述第一電極324a和第二電 極324b相垂直的一側壁，另一個卡扣3262靠近所述電極 支擇結構326與所述第一電極324a和第二電極324b相垂 直的另一個側壁。 [0034] 所述板狀保護結構34可選擇為多孔結構，如柵網，也可 選擇為無孔的板狀結構，如玻璃板。所述柵網可選自金 屬栅網或塑膠柵網等。所述兩個板狀保護結構34也可一 個為多孔結構，一個為無孔的板狀結構》優選地，所述 板狀保護結構34具有較好的透明度。本實施例中，所述 兩個板狀保護結構34均為金屬柵網。所述金屬柵網具有 多個通孔，且該多個通孔的總面積占該金屬柵網的面積 的百分比在30%至80%之間。 [0035] 當所述發聲裝置30包括多個第一電極324a和多個第二電 極324b時’所述多個第一電極324a可通過一第一導電片 328a電連接’該第一導電片328a與所述多個第二電極 09715183产單编號 A0101 第16頁/共31頁 1013375827-0 101年.09月28日修正替换3 324b電絕緣；所述多個第二電極32牝可通過一第二導電 片328b電連接，該第二導電片“肋與所述多個第一電極 324b電絕緣。上述連接方式可實現相鄰的第一電極324a 和第二電極324b之間的熱發聲膜322之間的並聯，並聯後 的熱發聲膜322具有較小的電阻，可降低工作電壓。另外 ’所述多個第—電極324a和多個第二電極324b可設置在 同一平面内’也可設置在不同平面内。由於所述奈米碳 皆結構具有較好的機械強度和韌性，故當所述多個第一 電極324a和多個第二電極324b設置在不同平面内時，所 述熱發聲膜3 22可為一非平面結構，如弓形、弧形、半圓 形或圓形等。此時，所述發聲裝置3〇可具有與所述熱發 聲膜322相同的形狀’且所述電極支撐結構326具有與所 述熱發聲膜322相匹配的形狀，從而形成一非平面發聲裝 置30 »所述發聲裝置3〇可根據需要製成任意形狀和尺寸 的發聲裝置’具有廣泛的應用範圍。本實施例中，所述 發聲裝置30包括四個第一電極324a和四個第二電極324b 。所述第一電極324a和第二電極324b交替間隔設置，且 所述第一電極324a和第二電極324b位於同一平面内。 [_]另外，所述導電片328a，328b遠離電極支撐結構326的 表面可進一步設置一絕緣層（圖未示）。所述絕緣層的 設置可使所述發聲裝置30整體處於電絕緣狀態，使用時 更加安全。 [0037]請參閱圖8至圖9，本發明第四實施例提供一種發聲裝置 40，該發聲裝置40包括一熱發聲膜422、至少一第一電極 424a、至少一第二電極424b、一電極支樓結構426、一 09715183^^^ A〇101 第Π頁/共31頁 1013375827-0 1101年.09月28曰梭正替换i 第一導電片428a、一第二導電片428b、兩個板狀保護結 構44、兩個導電觸片46以及—外框48。所述熱發聲膜 422與所述第一電極424a和第二電極424b電連接，並通 過所述第一電極424a和第二電極424b固定《所述熱發聲 膜422、至少一第—電極424a、至少一第二電極424b以 及電極支撐結構426組成一發聲單元42。 [0038] 本發明第四實施例提供的發聲裝置4〇與第三實施例中的 發聲裝置30的區別在於，所述發聲裝置4〇包括進一步包 括兩個導電觸片46以及一外框48 »所述外枢48將所述兩 個板狀保護結構44更好地固定在所述發聲單元42兩側。 所述導電觸片46固定在所述外框48上並通過所述導線（ 圖未示）與所述第一電極424a和第二電極424b電連接。 所述導電觸片46可輸入訊號到所述熱發聲膜422，所述熱 發聲膜422接受該訊號，發出聲波。 [39] 所述外框48可具有一第一封裝框482和一第二封裝框484 。所述第一封裝框482和第二封裝框484具有相同的結構 ，且均具有四個首尾相連的邊枢486，所述邊框486圍設 成一開口，該開口呈方形設置。每一邊框486呈矩形板狀 。所述四個邊框486在靠近其開口處背向板狀保護結構44 凹陷形成一承接部488，以承接所述板狀保護結構44。每 一承接部488與其所在邊框486形成臺階狀。所述一第一 封裝框482與第二封裝框484可以通過螺栓、黏結劑、鉚 接或任何可以固定的方式固定在一起。所述第一封裝框 482和第二封裝框484由絕緣材料製作，該絕緣材料包括 玻璃、陶瓷、樹脂、木質材料、石英、塑膠等中的一種 〇9715183#單編號第18頁/共31頁 ' 1013375827-0 1379286 101 年.09月 28 日 或多種。本實施例中，所述第一封裝框術和第二封裝框 484為m踢框。所述第—封裝框482和第二封裝框 484通過螺栓固定在_起。 _]所述發聲裝置具有以下優點：其-，由於所述發聲裝置 由板狀保護結構和熱發聲膜喊，熱發聲膜設置在所述 兩個板狀賴結構之間，板純龍構可對熱發聲膜起 保護作用’使熱發聲膜不易遭受外力破壞。其二由於 奈米碳管具有較好的機械強度和城，故由奈米碳管組 成的奈米碳官結構具有較好的機械強度和勒性，從而有 利於製備各種形狀、尺寸的熱發聲膜，進而有利於製備 各種形狀、尺寸的發聲裝置，從而方便地應用於各種可 發聲的裝置中’如音響、手機、MP3、Mp4、電視、電腦 等電子領域及其它發聲裝置中。其三，所述板狀保護結 構可為多孔結構，故該板狀保護結構不會影響所述熱發 聲膜與週圍介質之間的熱交換，進而不會影響所述熱發 聲膜的發聲效果* _]综上所述’本發明確已符合發明專利之要件，遂依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施例 ，自不能以此限制本案之申請專利範圍。舉凡習知本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [_] 係先前技術中採用奈米碳管膜作熱發聲膜的發聲裝置 的示意圖。 。心係本發明第一:::提二發聲裝置的立想圏 1013375827-0 1379286 101年-09月28日修正替換頁 [0044] 圖3係本發明第一實施例提供的發聲裝置的立體分解圖。 [0045] 圖4係本發明第二實施例提供的發聲裝置的立體圖。 [0046] 圖5係本發明第二實施例提供的發聲裝置的立體分解圖。 [0047] 圖6係本發明第三實施例提供的發聲裝置的立體圖。 [0048] 圖7係本發明第三實施例提供的發聲裝置的立體分解圖。 [0049] 圖8係本發明第四實施例提供的發聲裝置的立體圖。 [0050] 圖9係本發明第四實施例提供的發聲裝置的立體分解圖。 【主要元件符號說明】 [0051] 發聲裝置：10，20，30，40 [0052] 發聲單元：32, 42 [0053] 導電觸片：46 [0054] 熱發聲膜：102，202，422，322 [0055] 第一電極：104a，2 04a，324a，424a [0056] 第二電極：104b，204b，324b，424b [0057] 板狀保護結構：106，206，34，44 [0058] 延伸部：1062 [0059] 弧形曲面：1064 [0060] 凹槽：1066 [0061] 通孔：1068 [0062] 孔：1069 09715183产單编號 A〇101 第20頁/共31頁 1013375827-0 1379286 [0063] 封裝結構：208 [0064] 側板：2062 [0065] 底板：2064 [0066] 容置部：2066 [0067] 封裝孔：2068，2082 [0068] 電極支撐結構：326，426 [0069] 卡扣：3262 [0070] 第一導電片：328a，428a [0071] 第二導電片：328b，428b [0072] 卡槽：344 [0073] 第一封裝框：482 [0074] 第二封裝框：484 [0075] 邊框：486 [0076] 承接部：488 09715183(^編號 A〇101 第21頁/共31頁 101年.09月28日梭正替換頁 1013375827-0[ϊ〇1年.09月28日核正定^Page I The electrode supporting structure 326 may be two parallel strip-like structures or a frame-like structure having a certain thickness. The material of the electrode supporting structure 326 is not limited and may be an insulating material such as diamond, glass, wood material, plastic, resin, or the like, or a conductive material such as metal. When the electrode supporting structure 326 is a conductive material, and the sound generating device 3 includes a first electrode 324a and a second electrode 3241), it is necessary to ensure one of the first electrode 324a and the second electrode 324b. The electrodes are electrically insulated from the electrode support structure 326. When the electrode supporting structure 326 is a conductive material, and the sounding device 30 includes a plurality of first electrodes 32A and a plurality of first electrodes 324b, it is necessary to ensure the electrode supporting structures 326 and the plurality of first The electrode 324a is electrically connected, electrically insulated from the plurality of second electrodes 324b, or electrically connected to the plurality of second electrodes 324b, and electrically insulated from the plurality of first electrodes 324a. In the embodiment of the present invention, the material of the electrode supporting structure 326 is plastic, and it is a square frame structure. The thickness of the electrode support structure 326 needs to be greater than the sum of the diameter of the first electrode 324a or the second electrode 324b and the thickness of the thermal acoustic film 322. The electrode support structure 326 has at least two through holes corresponding to the electrodes on its opposite surfaces. Both ends of the first electrode 324a and the second electrode 324b may respectively pass through the through hole and be supported by the electrode supporting structure 326. Preferably, the through hole is disposed to ensure that the first electrode 324a and the second electrode 324b are arranged in parallel and spaced apart. [0033] The manner in which the plate-like protection structure 34 and the electrode support structure 326 are fixed is not limited to being fixed by bolts or snaps. In this embodiment, the plate-shaped protection structure 34 and the electrode support structure 326 are fixed by snapping. Specifically, the first electrode 324a and the second electrode 324b may be replaced with the 097(5)8# single number A〇101 page/31 pages 1013375827-0 1379286. The two opposite side arms are perpendicular, and the side arms have the plurality of holes. The electrode supporting structure 326 has at least one buckle 3262 on its two sidewalls parallel to the first electrode 324a and the second electrode 324b, and the plate-shaped protective structure 34 has the electrode supporting structure 326 The latch 3262 corresponds to the card slot 344. The buckle 3262 is matched with the card slot 342 to fix the plate-shaped protection structure 34 and the electrode branch structure 3 2 6 . The position of the buckle 3262 on the electrode branch structure 326 is not limited, and only needs to correspond to the card slot 344. Preferably, the buckle 3262 is disposed on two side walls of the electrode supporting structure 326 parallel to the first electrode 324a and the first electrode 324b, and one of the buckles 3262 is adjacent to the electrode supporting structure 326 and the The first electrode 324a and the second electrode 324b are perpendicular to one side wall, and the other buckle 3262 is adjacent to the other side wall of the electrode supporting structure 326 which is perpendicular to the first electrode 324a and the second electrode 324b. [0034] The plate-like protection structure 34 may be selected as a porous structure, such as a grid, or may be selected as a non-porous plate-like structure such as a glass plate. The grid may be selected from a metal grid or a plastic grid. The two plate-like protective structures 34 may also be of a porous structure and one of which is a non-porous plate-like structure. Preferably, the plate-like protective structure 34 has a good transparency. In this embodiment, the two plate-shaped protection structures 34 are all metal grids. The metal grid has a plurality of through holes, and a total area of the plurality of through holes occupies between 30% and 80% of the area of the metal grid. [0035] When the sounding device 30 includes a plurality of first electrodes 324a and a plurality of second electrodes 324b, the plurality of first electrodes 324a may be electrically connected to the first conductive sheet 328a through a first conductive sheet 328a. And the plurality of second electrodes 09715183, the order number A0101, the 16th page, the 31st page, the 1013375827-0, the 101st, the September 28th, the correction replaces the 3 324b electrical insulation; the plurality of second electrodes 32 牝 can pass through The second conductive sheet 328b is electrically connected, and the second conductive sheet "ribs are electrically insulated from the plurality of first electrodes 324b. The above connection manner can realize the thermal sounding film between the adjacent first electrode 324a and the second electrode 324b. In parallel between the 322, the parallel thermal vocalization film 322 has a small resistance to lower the operating voltage. Further, the plurality of first electrodes 324a and the plurality of second electrodes 324b may be disposed in the same plane. Provided in different planes. Since the nanocarbon structure has good mechanical strength and toughness, when the plurality of first electrodes 324a and the plurality of second electrodes 324b are disposed in different planes, the heat The sounding film 3 22 can be a non-planar structure such as a bow or an arc. Shape, semicircle or circle, etc. At this time, the sounding device 3A may have the same shape as the thermal sounding film 322' and the electrode supporting structure 326 has a matching with the thermal sounding film 322. Shape, thereby forming a non-planar sounding device 30 » The sounding device 3 can be made into a sounding device of any shape and size as needed. The invention has a wide range of applications. In the present embodiment, the sounding device 30 includes four An electrode 324a and four second electrodes 324b. The first electrode 324a and the second electrode 324b are alternately spaced apart, and the first electrode 324a and the second electrode 324b are located in the same plane. [_] In addition, the An insulating layer (not shown) may be further disposed on the surface of the conductive sheets 328a, 328b away from the electrode supporting structure 326. The insulating layer is disposed such that the sound generating device 30 as a whole is electrically insulated and safer to use. [0037 Referring to FIG. 8 to FIG. 9 , a fourth embodiment of the present invention provides a sound emitting device 40 , which includes a thermal sounding film 422 , at least one first electrode 424 a , at least one second electrode 424 b , and an electric Branch structure 426, a 09715183 ^ ^ ^ A 〇 101 page / a total of 31 pages 1013375827-0 1101. September 28 正 shuttle is replacing i the first conductive sheet 428a, a second conductive sheet 428b, two boards a protective structure 44, two conductive contacts 46, and an outer frame 48. The thermal sounding film 422 is electrically connected to the first electrode 424a and the second electrode 424b, and passes through the first electrode 424a and the second electrode 424b is fixed. The thermal sounding film 422, the at least one first electrode 424a, the at least one second electrode 424b, and the electrode supporting structure 426 constitute a sounding unit 42. The sound emitting device 4A provided by the fourth embodiment of the present invention is different from the sound emitting device 30 of the third embodiment in that the sounding device 4A further includes two conductive contacts 46 and an outer frame 48 » The outer hub 48 better secures the two plate-like protective structures 44 on either side of the sounding unit 42. The conductive contact 46 is fixed on the outer frame 48 and electrically connected to the first electrode 424a and the second electrode 424b through the wire (not shown). The conductive contact 46 can input a signal to the thermal acoustic film 422, and the thermal acoustic film 422 receives the signal and emits a sound wave. The outer frame 48 can have a first encapsulation frame 482 and a second encapsulation frame 484. The first encapsulation frame 482 and the second encapsulation frame 484 have the same structure, and each has four end-to-end side pivots 486. The bezel 486 is surrounded by an opening, and the opening is square. Each frame 486 has a rectangular plate shape. The four bezels 486 are recessed toward the plate-like protection structure 44 near the opening thereof to form a receiving portion 488 for receiving the plate-like protection structure 44. Each of the receiving portions 488 is stepped with the frame 486 in which it is located. The first package frame 482 and the second package frame 484 may be fixed together by bolts, adhesives, riveting or any fixed manner. The first package frame 482 and the second package frame 484 are made of an insulating material, such as glass, ceramic, resin, wood material, quartz, plastic, etc. 〇9715183#单号第18页/total 31 pages ' 1013375827-0 1379286 101 years. September 28 or more. In this embodiment, the first encapsulation frame and the second encapsulation frame 484 are m kick frames. The first package frame 482 and the second package frame 484 are fixed by bolts. The sounding device has the following advantages: - since the sounding device is shouted by a plate-like protective structure and a thermal sounding film, a thermal sounding film is disposed between the two plate-shaped structures, and the plate is purely Protects the thermal vocal membranes' from making the thermoacoustic membrane less susceptible to external forces. Secondly, because the carbon nanotubes have good mechanical strength and city, the nano-carbon structure composed of carbon nanotubes has good mechanical strength and character, which is beneficial to prepare thermoacoustic films of various shapes and sizes. Moreover, it is advantageous to prepare sounding devices of various shapes and sizes, and thus is conveniently applied to various sound-emitting devices such as audio, mobile phones, MP3, Mp4, televisions, computers, and other electronic fields and other sounding devices. Thirdly, the plate-shaped protection structure can be a porous structure, so the plate-shaped protection structure does not affect the heat exchange between the thermosonic film and the surrounding medium, and thus does not affect the sounding effect of the thermoacoustic film* _] In summary, the invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. [Simple description of the drawing] [_] is a schematic diagram of a sounding device using a carbon nanotube film as a thermal sounding film in the prior art. . The present invention is the first of the present invention::: the idea of the second sounding device 1013375827-0 1379286 101-September 28, the revised replacement page [0044] FIG. 3 is a three-dimensional decomposition of the sounding device provided by the first embodiment of the present invention Figure. 4 is a perspective view of a sound emitting device according to a second embodiment of the present invention. 5 is an exploded perspective view of a sound emitting device according to a second embodiment of the present invention. 6 is a perspective view of a sound emitting device according to a third embodiment of the present invention. 7 is an exploded perspective view of a sound emitting device according to a third embodiment of the present invention. 8 is a perspective view of a sound emitting device according to a fourth embodiment of the present invention. 9 is an exploded perspective view of a sound emitting device according to a fourth embodiment of the present invention. [Main component symbol description] [0051] Sounding device: 10, 20, 30, 40 [0052] Sounding unit: 32, 42 [0053] Conductive contact: 46 [0054] Thermoacoustic film: 102, 202, 422, 322 [0055] First electrode: 104a, 2 04a, 324a, 424a [0056] Second electrode: 104b, 204b, 324b, 424b [0057] Plate-like protective structure: 106, 206, 34, 44 [0058] Extension: 1062 [0059] Curved surface: 1064 [0060] Groove: 1066 [0061] Through hole: 1068 [0062] Hole: 1069 09715183 Production order number A〇101 Page 20/Total 31 page 1013375827-0 1379286 [0063 Package structure: 208 [0064] Side panel: 2062 [0065] Backplane: 2064 [0066] Socket: 2066 [0067] Package hole: 2068, 2082 [0068] Electrode support structure: 326, 426 [0069] Snap: 3262 [0070] First conductive sheet: 328a, 428a [0071] Second conductive sheet: 328b, 428b [0072] Card slot: 344 [0073] First package frame: 482 [0074] Second package frame: 484 [0075 ] Frame: 486 [0076] Undertaking: 488 09715183 (^ No. A〇101 Page 21/31 pages 101. September 28th Shuttle replacement page 1013375827-0