101年.08月21日修正替換頁 1375946 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，尤其涉及一種基於奈米碳管 的發聲裝置。 【先前技術】 [0002] 發聲裝置一般由讯号輸入裝置和發聲元件組成，通過讯 号輪入裝置輸入讯号到該發聲元件，進而發出聲音。熱 致發聲裝置為發聲裝置中的一種，其為基於熱聲效應的 一種發聲裝置，請參見文獻“The Thermophone” ， EMARDC. WENTE，Vol.XIX，No.4，p333-345&“101. August 21st revised replacement page 1375946 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a sounding device, and more particularly to a sound emitting device based on a carbon nanotube. [Prior Art] [0002] A sounding device generally consists of a signal input device and a sounding element, and a signal is input through the signal wheeling device to the sounding element to emit a sound. The thermal sounding device is one of the sounding devices, which is a sounding device based on the thermoacoustic effect, see the document "The Thermophone", EMARDC. WENTE, Vol. XIX, No. 4, p333-345 & "
On Some Thermal Effects of Electric Currents ” ，William Henry Preece ， 'Proceedings of the Royal Society of London > Vol.3〇， p408-41 1( 1879-1881 )。其揭示一種熱致發聲裝置，該 熱致發聲裝置通過向一導體中通入交流電來實現發聲。 該導體具有較小的熱容（Heat capacity)，較薄的厚 度，且可將其内部產生的熱量迅速傳導給週圍氣體介質 的特點。當交流電通過導體時，隨交流電電流強度的變 化，導體迅速升降溫，而和週圍氣體介質迅速發生熱交 換，促使週圍氣體介質分子運動，氣體介質密度隨之發 生變化，進而發出聲波。 [0003]另外，H. D. Arno 1 d和 I. B. Cranda 11 在文獻 “The therraophone as a precision source of sound" ，Phys· Rev. 10， P22 - 38 (1917)中揭示了一種簡 單的熱致發聲装置，其採用一鉑片作發聲元件，該鉑片 09715179笋单編& A0101 第3頁/共21頁 1013320185-0 1375946 —月2i日修正 的厚度為0· 7微米。發聲元件的發聲頻率與其單位面積熱 容密切相關，即發聲元件的單位面積熱容愈大，發聲頻 率範圍愈窄，聲波強度愈低；反之，單位面積熱容愈小 ，發聲頻率範圍愈寬，聲波強度愈高。因此，欲獲得較 寬的發聲頻率範圍及較高的聲波強度，發聲元件的單位 面積熱容則愈小愈好。而具有較小單位面積熱容的金屬 鉑片，文材料本身的限制，其厚度最小只能達〇 7微米， 且採用該鉑片作發聲元件的發聲裝置，其所產生的發聲 頻率最高僅可達4千赫茲。 [0004]於2〇〇8年，范守善等人公開了一種應用奈米碳管的發聲 裝置，請參見文獻 “Flexible，StretchaMe，"On Some Thermal Effects of Electric Currents", William Henry Preece, 'Proceedings of the Royal Society of London > Vol. 3〇, p408-41 1 (1879-1881), which discloses a thermo-acoustic device that generates heat The device achieves sound by introducing alternating current into a conductor. The conductor has a small heat capacity, a thin thickness, and can quickly transfer heat generated inside it to the surrounding gaseous medium. When passing through the conductor, the conductor rapidly rises and falls with the change of the alternating current intensity, and rapidly exchanges heat with the surrounding gas medium, causing the surrounding gas medium molecules to move, and the density of the gas medium changes accordingly, thereby generating sound waves. [0003] HD Arno 1 d and IB Cranda 11 disclose a simple thermoacoustic device in the literature "The therraophone as a precision source of sound", Phys. Rev. 10, P22-38 (1917), which uses a platinum sheet. Sounding element, the platinum piece 09715179 bamboo shoot single & A0101 page 3 / total 21 page 1013320185-0 1375946 - month 2i revised The thickness is 0·7 microns. The sounding frequency of the sounding component is closely related to the heat capacity per unit area, that is, the larger the heat capacity per unit area of the sounding component, the narrower the sounding frequency range, and the lower the sound wave intensity; conversely, the smaller the heat capacity per unit area, the wider the sound frequency range. The higher the sound wave intensity. Therefore, in order to obtain a wide range of vocal frequencies and a high sound intensity, the heat capacity per unit area of the sounding element is as small as possible. The metal platinum sheet having a smaller heat capacity per unit area, the limitation of the material itself, can be as small as 7 micrometers, and the sounding device using the platinum sheet as the sounding element can produce the highest sounding frequency only. Up to 4 kHz. [0004] In 2002, Fan Shoushan and others disclosed a sounding device using a carbon nanotube, see the literature "Flexible, StretchaMe,
Transparent Carbon Nanotube Thin Film Loudspeakers”，范守善 et al ，Nan〇 UUers ，Vol.8 (12)，P4539-4545 (2〇〇8；)。 _5]請參見圖卜該發聲裝置4〇包括一基底4〇2、一奈米碳管 膜406、及兩個電極4〇4。該奈米碳管膜4〇6設置於該基 底402上，該兩個電極4〇4與該奈米碳管膜4〇6直接接觸 形成電連接，通過提供電流使該奈米碳管膜4〇6熱致發聲 。由於該發聲裝置40採用奈米碟管膜樓作為發聲元件， — 該奈米碳管膜406具有極大的比表面積及極小的單位面積 . 熱容，所以該發聲展置40可發出人耳能夠聽到的聲音強 度且具有極溥的厚度以及較寬的發聲頻率範圍 (100Hz〜l〇〇kHz)» [_惟，由於該奈来碳管膜4〇6直接貼合於該基底4〇2，除減 ”小了奈米碳管膜權與週圍介質的接觸面積，且由奈米碳Transparent Carbon Nanotube Thin Film Loudspeakers", Fan Shoushan et al, Nan〇UUers, Vol.8 (12), P4539-4545 (2〇〇8;). _5] Please refer to the drawing device 4〇 including a substrate 4〇 2. A carbon nanotube film 406 and two electrodes 4〇4. The carbon nanotube film 4〇6 is disposed on the substrate 402, and the two electrodes 4〇4 and the carbon nanotube film 4〇 6 The direct contact forms an electrical connection, and the carbon nanotube film 4〇6 is thermally induced by supplying an electric current. Since the sound generating device 40 uses a nano-disc film building as a sounding element, the carbon nanotube film 406 has a great The specific surface area and the minimum unit area. The heat capacity, so the vocal display 40 can emit the sound intensity that the human ear can hear and has a very thick thickness and a wide range of vocal frequencies (100 Hz ~ l 〇〇 kHz) » [ _ However, since the Nylon carbon film 4〇6 is directly attached to the substrate 4〇2, in addition to reducing the contact area of the nanocarbon film film with the surrounding medium, and by the nanocarbon
09*7151^ 早編號麵1 ^ 4 I / it 21 I 1013320185-0 1.375946 101年.08月21日梭正替换頁 管膜40 6所產生用以發聲的熱量亦大部分被基底402所吸 收，因此影響了發聲裝置40的發聲效果。 【發明内容】 [0007] 有鑒於此，確有必要提供一種發聲效果較好且基於奈米 碳管的發聲裝置。 [0008] —種發聲裝置，其包括一基底；一第一電極及一第二電 極，該第一電極和第二電極間隔設置於該基底；以及一 發聲元件，該發聲元件包括一奈米碳管結構，該奈米碳 管結構與該第一電極和該第二電極電連接；其中，所述 第一電極和第二電極間隔設置於所述發聲元件與所述基 底之間，使該發聲元件與該基底之間形成有一間隙。 [0009] —種發聲裝置，其包括：一基底；一第一電極及一第二 電極，該第一電極和該第二電極間隔設置於該基底；以 及一發聲元件，該發聲元件包括一奈米碳管結構，該奈 米碳管結構與該第一電極和該第二電極電連接，該發聲 元件具有一第一表面及與該第一表面相對的第二表面； 其中，所述第一電極和第二電極設置於所述發聲元件的 第一表面與所述基底之間，使該發聲元件與該基底之間 形成有一間隙，該發聲裝置進一步包括至少兩個固定元 件，該至少兩個固定元件設置於該發聲元件的第二表面 且分別與該第一電極及第二電極相對，該發聲元件夾持 於該至少兩個固定元件與該第一電極及第二電極之間。 [0010] 與習知技術相比較，所述發聲裝置中第一電極和第二電 極間隔置於該基底與發聲元件之間，使該發聲元件與該 基底之間形成有一間隙，因此發聲元件與週圍介質的接 1013320185-0 09715179#單編號A〇101 第5頁/共21頁 U15ML· I〇l年08月21日核正替^ 觸面積較大，可將其内部產生的熱量迅速傳導給週圍介 質，故該發聲裝置具有較好的發聲效果。另外，由於發 聲裝置進一步包括至少兩個固定元件，使發聲元件夾持 於固定元件與該第一電極及第二電極之間，使發聲元件 與第一電極和第二電極之間的電連接有所提升，更加提 高了發聲裝置的發聲效果。 【實施方式】 [0011] 以下將結合附圖詳細說明本發明實施例提供的發聲裝置 [0012] 請參閱圖2及圖3，本發明第一實施例提供一種發聲裝置 10，該發聲裝置10包括一基底102、一第一電極104、一 第二電極108、及一發聲元件106。 [0013] 所述第一電極104與第二電極108間隔設置於基底102。 所述發聲元件106設置於該第一電極104與第二電極108 上，使該第一電極104與第二電極108位於基底102與發 聲元件106之間，該發聲元件106相對於基底102部分懸 空。即，該第一電極104、該第二電極108、發聲元件 106以及基底102共同形成有一間隙101。 [0014] 所述基底102主要起承載第一電極104與第二電極108的 作用。該基底102的形狀與大小不限，材料為絕緣材料或 導電性差的材料。另外，該基底102的材料應具有較好的 絕熱性能，從而防止該發聲元件106產生的熱量被該基底 102吸收，而無法達到加熱週圍介質進而發聲的目的。在 本實施例中，該基底102的材料可為玻璃、樹脂或陶瓷 等。本實施例中，所述基底102為一正方形的玻璃板，其 1013320185-0 097151%^單编號Α0101 第6頁/共21頁 1-375946 [0015] [0016] [0017] [0018] 10Ϊ年.08月21日修正替&頁 邊長為4. 5厘米，厚度為1毫米。 所述第一電極104與第二電極108平行且間隔一定距離設 置於基底102。該間隙m由第一電極m、第二電極1〇8 與基底102形成，該間隙101的高度取決於第一電極1〇4 與第二電極108的高度。在本實施例中，第一電極1〇4與 第二電極108的高度範圍為丨微米〜丨厘米。優選地，第一 電極104和第二電極1〇8的高度為15微米。 所述第-電極104與第二電極1〇8可為層狀（絲狀或帶狀 )、棒狀'條狀、塊狀或其他形狀，其橫截面的形狀可 為圓型、方型、梯形、二角形、多邊形或其他不規則形 狀。該第一電極104與第二電極108可通過螺栓連接或黏 結劑黏結等方式固定於基底102。而為防止發聲元件1〇6 的熱量被第-電極104與第二電極1〇8過多吸收而影響發 聲效果，該第一電極1〇4及第二電極1〇8與發聲元件1〇6 的接觸面積較小為好，因此，該第一電極1〇4和第二電極 108的形狀優選為絲狀或帶狀。該第一電極與第二電 極108材料可選擇為金屬、導電膠、導電漿料油錫氧化物（ITO)等。 本實施例中，第一電極104與第二電極1〇8係利用銀漿通 過印刷方式如絲網印刷形成於基底上的絲狀銀電極。 發聲元件106設置於第一電極1〇4與第二電極1〇8上，所 述發聲元件106包括一奈米碳管結構，該奈米碳管結構包 括至少一奈米碳管膜、複數個奈米碳管線或一奈米碳管 膜與奈米碳管線的複合結構。所述奈來碳管結構的厚度 0971517# 單織 A〇101 第7頁/共21頁 1013320185-0 T375946_· 101年08月21日核正替換頁 (線狀結構時即為直徑）為0. 5奈米〜1毫米。所述奈米碳 管結構的單位面積熱容可小於2x1 0_4焦耳每平方厘米開 爾文。優選地，所述奈米碳管結構的單位面積熱容小於 1. 7x1 0_6焦耳每平方厘米開爾文。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，所述雙壁奈米碳管的直徑為1. 0奈米〜50 奈米，所述多壁奈米碳管的直徑為1.5奈米〜50奈米。 [0019] 所述奈米碳管膜通過拉取一奈米碳管陣列直接獲得，該 奈米碳管膜包括複數個沿同一方向擇優取向排列的奈米 碳管，且該奈米碳管之間通過凡德瓦爾力首尾相連。優 選地，該奈米碳管膜包括複數個平行的奈米碳管沿其軸 向從所述第一電極104延伸至所述第二電極108。奈米碳 管的軸向方向與第一電極104垂直。 [0020] 在本實施例中，奈米碳管結構除了由單個奈米碳管膜構 成外，亦可包括複數個重疊設置的奈米碳管膜，由複數 個重疊設置的奈米碳管膜組成的奈米碳管結構相對由單 個奈米碳管膜組成的奈米碳管結構具有更高的強度，因 此，可確保該奈米碳管結構不被破壞或改變。由於單個 奈米碳管膜的透光性佳，在本實施例中，為保持奈米磷 管結構具有較好的透光性，所述奈米碳管結構中的奈米 碳管膜的個數小於4個。 [0021] 另外，當單個奈米碳管膜的寬度不能滿足實際應用的要 求時，可將複數個奈米碳管膜無間隙共面設置，形成一 具有更大寬度的奈米碳管膜，以便於實際應用。 097⑸79产單编號Α〇101 第8頁/共21頁 1013320185-0 1375946 . 101年08月21日核正替換頁 [0022] 本實施例中，所述作為發聲元件106的奈米碳管結構包括 四個重疊設置的奈米碳管膜，相鄰的兩個奈米碳管膜中 奈米碳管的排列方向相互垂直。所述奈米碳管結構的長 度和寬度均為3厘米，厚度為50奈米。由四個奈米碳管膜 構成的奈米碳管結構仍可保持該發聲元件106具有較好的 透光度。 [0023] 所述發聲元件106的工作介質不限，只需滿足其電阻率大 於所述發聲元件106的電阻率即可。所述介質包括氣態介 質或液態介質。所述氣態介質可為空氣。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。 所述液態介質的電阻率大於0.01歐姆·米，優選地，所述 液態介質為純淨水。純淨水的電導率可達到1. 5xl07歐姆 .•米，且其單位面積熱容也較大，可傳導出發聲元件106 產生的熱量，從而可對發聲元件106進行散熱。本實施例 中，所述介質為空氣。 [0024] 本實施例的發聲裝置1 0可通過第一電極104及第二電極 1 08與外部電路電連接，而由此接入外部讯号發聲。由 於包括奈米碳管結構的發聲元件106，係由均勻分佈的奈 米碳管組成，基於奈米碳管本身具有較大的比表面積， 且該奈米碳管結構為層狀或線狀，因而所述奈米碳管結 構具有較大的比表面積，較小的單位面積熱容以及較大 的散熱面積。在輸入讯号後，所述發聲元件106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。簡而言之，本發明實施例的發聲元件106係藉 單編號腿01 第9頁/共21頁 1013320185-0 1375946 101年08月21日梭正替换頁 由“電-熱-聲”的轉換來達到發聲。另外，利用奈米碳 管結構的高透光度，該發聲裝置10呈一透明發聲裝置。 [0025] 本實施例提供的發聲裝置10的聲壓級大於50分貝每瓦聲 壓級，發聲頻率範圍為1赫茲至10萬赫茲（即 ΙΗζ-lOOkHz)。所述發聲裝置在500赫茲-4萬赫茲頻率 範圍内的失真度可小於3%。 [0026] 另外，本實施例中的奈米碳管結構具有較好的韌性和機 械強度，所以奈米碳管結構可方便地製成各種形狀和尺 寸的發聲裝置10，該發聲裝置10可方便地應用於各種可 發聲的器件中，如音響、手機、MP3、MP4、電視、電腦 等可發聲的器件中。 [0027] 請參閱圖4及圖5，本發明第二實施例提供一種發聲裝置 20，該發聲裝置20包括一基底202、複數個第一電極204 、複數個第二電極208、及一發聲元件2 06。 [0028] 該發聲裝置20與第一實施例提供的發聲裝置10的結構基 本相同。本實施例所提供的發聲裝置20與第一實施例提 供的發聲裝置10的不同之處在於該發聲裝置包括複數個 第一電極與複數個第二電極，所述複數個第一電極204 與複數個第二電極208交替間隔設置於基底202。所述發 聲元件206設置於該第一電極204與第二電極208上，使 該複數個第一電極204與複數個第二電極208位於基底 202與發聲元件206之間，該發聲元件206相對於基底202 部分懸空。即，複數個第一電極204、複數個第二電極 208、發聲元件206以及基底202共同形成有複數個間隙 ° 單编號應01 第10頁/共21頁 1013320185-0 1375946 101年.08月21日梭正替换頁 ，該複數個間隙更有利於該發聲元件206發聲。 [0029] 該複數個第一電極204與第二電極208交替間隔設置於基 底202，該各個相鄰的第一電極204與第二電極208之間 的距離可相等亦可不相等。優選地，各個相鄰的第一電 極204與第二電極208之間的距離相等。相鄰的第一電極 204與第二電極208之間的距離不限，優選為10微米〜1厘 米。 [0030] 該發聲裝置20進一步包括一第一電極引線210及一第二電 極引線212，該第一電極引線210與第二電極引線21 2分 別與發聲裝置20中的第一電極204和第二電極208連接， 使複數個第一電極204分別與該第一電極引線21 0與電連 接，使複數個第二電極208分別與該第二電極引線212電 連接。所述發聲裝置20通過該第一電極引線210和第二電 極引線21 2與外部電路電連接。 [0031] 本實施例中，第一電極204與第二電極208為用絲網印刷 方法形成的絲狀銀電極。第一電極204數量為四個，第二 電極208數量為四個，該四個第一電極204與四個第二電 極208交替且等間距設置於基底202。每個第一電極204 與第二電極208的長度均為3厘米，高度為15微米，相鄰 的第一電極204與第二電極208之間的距離為5毫米。 [0032] 請參閱圖6及圖7，本發明第三實施例提供一種發聲裝置 30，該發聲裝置30與第二實施例提供的發聲裝置20的結 構基本相同。該發聲裝置30包括一基底302、複數個第一 電極304、複數個第二電極308、一發聲元件306、一第 09715Π#單編號廳01 第11頁/共21頁 1013320185-0 TS75Q46 101年08月21日梭正替换頁 一電極引線310、一第二電極引線31 2及複數個固定元件 314 ° [0033] 該發聲元件306具有一第一表面30 62及與該第一表面 3062相對的第二表面30 64。該發聲元件306的第一表面 3062面對該第一電極304和第二電極308且與其接觸連接 ，該發聲元件306通過該第一電極304及第二電極308與 基底302間隔一定距離，使該發聲元件306、複數個第一 電極304、複數個第二電極308與基底302共同形成有複 數個間隙。 [0034] 本實施例所提供的發聲裝置30與第二實施例提供的發聲 裝置20的不同之處在於：所述發聲裝置3〇進一步包括至 少兩個固定元件314 ’該至少兩個固定元件314設置於發 聲元件306的第二表面3064上，分別與該第一電極304及 第一電極308相對設置’使該發聲元件3〇6夾持於第一電 極304和第二電極308與固定元件314之間。通過設置固 定元件314，可使發聲元件3〇6分別與第一電極304和第 二電極308之間的電接觸更好，提高發聲元件3〇6的發聲 效果。 [0035] 所述固定元件31 4的結構與第一電極3〇4及第二電極3〇8 的結構可相同，亦可不同。固定元件314的材料可為導電 材料亦可為絕緣材料。導電材料為金屬、合金、導電漿 料導七穆或銦錫氧化物等。絕緣材料為玻璃、樹脂或 陶瓷等。當固定元件314的材料為導電材料時，可與第一 電極304和第二電極308的材料相同，亦可不同。該固定 兀件314的高度不限，優選為丨微米〜1〇〇微米，本實施例 09715179#單編號A0101 第12頁/共21頁 1013320185-0 1375946 ^ 101年08月21日修正替换頁 中，固定元件314的材料與第一電極304和第二電極308 的材料相同，均為銀。固定元件314亦係通過絲網印刷的 方法形成，其高度為15微米。固定元件314的數量與第一 電極304和第二電極308的總數量相等，為八個。 [0036] 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。舉凡熟悉本案 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】 [0037] 圖1係先前技術中一種發聲裝置的結構示意圖。 [0038] 圖2係本發明第一實施例提供的發聲裝置的俯視圖。 [0039] 圖3係沿圖1中11 I - 11 I線剖開的剖面圖。 [0040] 圖4係本發明第二實施例提供的發聲裝置的俯視圖。 [0041] 圖5係沿圖4中V - V線剖開的刳面圖。 [0042] 圖6係本發明第三實施例提供的發聲裝置的俯視圖。 [0043] 圖7係沿圖6中VII-VII線剖開的剖面圖。 【主要元件符號說明】 [0044] 發聲裝置：10， 20， 30， [0045] 基底 ：102 ，202 ，302 9 [0046] 第一 電極： 104， 204， 304 [0047] 第二 電極： 108， 208， 308 第13頁/共21頁 1013320185-0 0971517#單編號應01 1375946 101年08月21日核正替換頁 [0048] 發聲元件：106，206 * 3 [0049] 第一表面：3062 [0050] 第二表面·· 3064 [0051] 第一電極引線：210， 310 [0052] 第二電極引線：212， 312 [0053] 間隙：101 [0054] 固定元件：314 09715179^^^ A〇101 第14頁/共21頁 1013320185-009*7151^ Early No. 1 ^ 4 I / it 21 I 1013320185-0 1.375946 101. On August 21st, the shuttle is replacing the film film 40 6 and the heat generated by the sound is mostly absorbed by the substrate 402. Therefore, the sounding effect of the sounding device 40 is affected. SUMMARY OF THE INVENTION [0007] In view of the above, it is indeed necessary to provide a sound emitting device based on a carbon nanotube having a good sounding effect. [0008] a sounding device comprising: a substrate; a first electrode and a second electrode, the first electrode and the second electrode are spaced apart from the substrate; and a sounding element comprising a nanocarbon a tube structure, the carbon nanotube structure is electrically connected to the first electrode and the second electrode; wherein the first electrode and the second electrode are disposed between the sound emitting element and the substrate to make the sound A gap is formed between the component and the substrate. [0009] A sounding device comprising: a substrate; a first electrode and a second electrode, the first electrode and the second electrode are spaced apart from the substrate; and a sounding element comprising a a carbon nanotube structure electrically connected to the first electrode and the second electrode, the sound emitting element having a first surface and a second surface opposite to the first surface; wherein the first surface An electrode and a second electrode are disposed between the first surface of the sound emitting element and the substrate such that a gap is formed between the sound emitting element and the substrate, and the sounding device further includes at least two fixing elements, the at least two The fixing component is disposed on the second surface of the sound emitting component and opposite to the first electrode and the second electrode respectively. The sounding component is sandwiched between the at least two fixing components and the first electrode and the second electrode. [0010] Compared with the prior art, the first electrode and the second electrode of the sounding device are interposed between the substrate and the sound emitting element, so that a gap is formed between the sounding element and the substrate, so the sounding element and The surrounding medium is connected to 1013320185-0 09715179# single number A〇101 page 5/total 21 pages U15ML· I〇l on August 21st, the nuclear area is large, and the heat generated inside can be quickly transmitted to The surrounding medium has a good sounding effect. In addition, since the sounding device further includes at least two fixing elements, the sounding element is clamped between the fixing element and the first electrode and the second electrode, so that the electrical connection between the sounding element and the first electrode and the second electrode is The improvement has further improved the sounding effect of the sounding device. [0011] The sound emitting device provided by the embodiment of the present invention will be described in detail with reference to the accompanying drawings. [0012] Referring to FIG. 2 and FIG. 3, the first embodiment of the present invention provides a sound emitting device 10, which includes the sound emitting device 10 A substrate 102, a first electrode 104, a second electrode 108, and a sound emitting element 106. [0013] The first electrode 104 and the second electrode 108 are spaced apart from each other on the substrate 102. The sounding element 106 is disposed on the first electrode 104 and the second electrode 108 such that the first electrode 104 and the second electrode 108 are located between the substrate 102 and the sound emitting element 106, and the sound emitting element 106 is partially suspended relative to the substrate 102. . That is, the first electrode 104, the second electrode 108, the sound emitting element 106, and the substrate 102 are collectively formed with a gap 101. [0014] The substrate 102 mainly functions to carry the first electrode 104 and the second electrode 108. The shape and size of the substrate 102 are not limited, and the material is an insulating material or a material having poor conductivity. In addition, the material of the substrate 102 should have better thermal insulation properties, so that the heat generated by the sound generating element 106 is prevented from being absorbed by the substrate 102, and the purpose of heating the surrounding medium and sounding is not achieved. In this embodiment, the material of the substrate 102 may be glass, resin or ceramics or the like. In this embodiment, the substrate 102 is a square glass plate, which is 1013320185-0 097151%^ single number Α0101, page 6 / total 21 pages 1-375946 [0015] [0017] [0018] 10Ϊ On August 21st, the correction and the margin of the page are 4.5 cm and the thickness is 1 mm. The first electrode 104 is disposed parallel to the second electrode 108 and spaced apart from the substrate 102 by a distance. The gap m is formed by the first electrode m and the second electrode 1〇8 and the substrate 102, and the height of the gap 101 depends on the heights of the first electrode 1〇4 and the second electrode 108. In the present embodiment, the height of the first electrode 1〇4 and the second electrode 108 ranges from 丨micron to 丨cm. Preferably, the height of the first electrode 104 and the second electrode 1〇8 is 15 μm. The first electrode 104 and the second electrode 1〇8 may be in the form of a layer (filament or strip), a rod shape, a strip, a block or other shapes, and the cross section may have a circular shape, a square shape, or the like. Trapezoidal, polygonal, polygonal or other irregular shape. The first electrode 104 and the second electrode 108 may be fixed to the substrate 102 by bolting or bonding of a bonding agent or the like. In order to prevent the heat of the sounding element 1〇6 from being excessively absorbed by the first electrode 104 and the second electrode 1〇8, the first electrode 1〇4 and the second electrode 1〇8 and the sounding element 1〇6 are affected. The contact area is preferably small, and therefore, the shape of the first electrode 1〇4 and the second electrode 108 is preferably a filament shape or a ribbon shape. The material of the first electrode and the second electrode 108 may be selected from a metal, a conductive paste, a conductive paste oil tin oxide (ITO), or the like. In the present embodiment, the first electrode 104 and the second electrode 1〇8 are filament-like silver electrodes formed on the substrate by printing, such as screen printing, using silver paste. The sounding element 106 is disposed on the first electrode 1〇4 and the second electrode 1〇8, the sounding element 106 includes a carbon nanotube structure including at least one carbon nanotube film, and a plurality of A composite structure of a nano carbon line or a carbon nanotube membrane and a nano carbon line. The thickness of the carbon nanotube structure is 9711517# single weave A〇101 page 7/total 21 page 1013320185-0 T375946_· On August 21, 101, the nuclear replacement page (the diameter of the linear structure) is 0. 5 nm ~ 1 mm. The carbon nanotube structure may have a heat capacity per unit area of less than 2 x 10 0 4 joules per square centimeter of Kelvin. Preferably, the carbon nanotube structure has a heat capacity per unit area of less than 1. 7 x 1 0_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 nano-walled carbon nanotubes having a diameter of 0.5 nm to 50 nm, and the double-walled carbon nanotubes having a diameter of 1.0 nm to 50 nm, the multi-walled carbon nanotubes The diameter is from 1.5 nm to 50 nm. [0019] the carbon nanotube film is directly obtained by drawing an array of carbon nanotubes, the carbon nanotube film comprising a plurality of carbon nanotubes arranged in a preferred orientation in the same direction, and the carbon nanotubes They are connected end to end by Van der Valli. Preferably, the carbon nanotube membrane comprises a plurality of parallel carbon nanotubes extending from the first electrode 104 to the second electrode 108 along its axis. The axial direction of the carbon nanotubes is perpendicular to the first electrode 104. [0020] In this embodiment, the carbon nanotube structure may be composed of a plurality of stacked carbon nanotube membranes in addition to a single carbon nanotube membrane, and a plurality of stacked carbon nanotube membranes. The composition of the carbon nanotube structure has a higher strength than the structure of the carbon nanotube composed of a single carbon nanotube film, thereby ensuring that the structure of the carbon nanotube is not damaged or altered. Since the light transmittance of the single carbon nanotube film is good, in the embodiment, in order to maintain the light transmittance of the nanophosphorus tube structure, the carbon nanotube film in the carbon nanotube structure is The number is less than 4. [0021] In addition, when the width of a single carbon nanotube film cannot meet the requirements of practical applications, a plurality of carbon nanotube films can be coplanar without gaps to form a carbon nanotube film having a larger width. For practical use. 097(5)79Product No.Α〇101 Page 8/Total 21 Page 1013320185-0 1375946. On August 21, 101, the replacement page [0022] In this embodiment, the carbon nanotube structure as the sounding element 106 The carbon nanotube film includes four overlapping arrangements, and the arrangement of the carbon nanotubes in the adjacent two carbon nanotube films is perpendicular to each other. The carbon nanotube structure has a length and a width of 3 cm and a thickness of 50 nm. The carbon nanotube structure composed of four carbon nanotube films still maintains the sound transmitting element 106 with good light transmittance. [0023] The working medium of the sound emitting element 106 is not limited, and only needs to satisfy the resistivity of the sound emitting element 106. The medium comprises a gaseous medium or a liquid medium. The gaseous medium can be air. The liquid medium includes one or more of a non-electrolyte solution, water, an organic solvent, and the like. The liquid medium has a resistivity greater than 0.01 ohm·meter. Preferably, the liquid medium is purified water. The conductivity of the purified water can reach 1. 5xl07 ohm.•m, and the heat capacity per unit area is also large, and the heat generated by the starting acoustic element 106 can be conducted, so that the sound emitting element 106 can be dissipated. In this embodiment, the medium is air. [0024] The sounding device 10 of the present embodiment can be electrically connected to an external circuit through the first electrode 104 and the second electrode 108, thereby thereby accessing an external signal to sound. Since the sound generating element 106 including the carbon nanotube structure is composed of a uniformly distributed carbon nanotube, the carbon nanotube itself has a large specific surface area, and the carbon nanotube structure is layered or linear. Therefore, the carbon nanotube structure has a large specific surface area, a small heat capacity per unit area, and a large heat dissipation area. After inputting the signal, the sounding element 106 can rapidly rise and fall, generate periodic temperature changes, and rapidly exchange heat with the surrounding medium to periodically change the density of the surrounding medium to produce sound. In short, the sounding element 106 of the embodiment of the present invention is a single numbered leg 01 page 9 / 21 pages 1013320185-0 1375946 101 August 2011 shuttle replacement page by "electric-thermal-acoustic" conversion To achieve vocalization. Further, the sound generating device 10 is a transparent sound generating device by utilizing the high transmittance of the carbon nanotube structure. [0025] The sound pressure level of the sounding device 10 provided in this embodiment is greater than 50 decibels per watt sound pressure level, and the sounding frequency ranges from 1 Hz to 100,000 Hz (ie, ΙΗζ-100 kHz). The sounding device may have a distortion of less than 3% in the frequency range of 500 Hz to 10,000 Hz. In addition, the carbon nanotube structure in the embodiment has better toughness and mechanical strength, so the carbon nanotube structure can be conveniently made into the sounding device 10 of various shapes and sizes, and the sounding device 10 can be conveniently It is used in a variety of sound-emitting devices, such as audio, mobile phones, MP3, MP4, TV, computers and other sound-emitting devices. [0027] Referring to FIG. 4 and FIG. 5, a second embodiment of the present invention provides a sounding device 20, which includes a substrate 202, a plurality of first electrodes 204, a plurality of second electrodes 208, and a sounding component. 2 06. [0028] The sounding device 20 is basically the same as the sounding device 10 provided in the first embodiment. The sounding device 20 provided in this embodiment is different from the sounding device 10 provided in the first embodiment in that the sounding device includes a plurality of first electrodes and a plurality of second electrodes, and the plurality of first electrodes 204 and plural The second electrodes 208 are alternately spaced apart from the substrate 202. The sounding element 206 is disposed on the first electrode 204 and the second electrode 208 such that the plurality of first electrodes 204 and the plurality of second electrodes 208 are located between the substrate 202 and the sounding element 206, and the sounding element 206 is opposite to the sounding element 206. The substrate 202 is partially suspended. That is, the plurality of first electrodes 204, the plurality of second electrodes 208, the sounding elements 206, and the substrate 202 are formed together with a plurality of gaps. Single number should be 01. 10th page/total 21 pages 1013320185-0 1375946 101.08. On the 21st, the shuttle is replacing the page, and the plurality of gaps are more favorable for the sounding element 206 to sound. The plurality of first electrodes 204 and the second electrodes 208 are alternately spaced apart from each other on the substrate 202. The distance between the adjacent first electrodes 204 and the second electrodes 208 may be equal or unequal. Preferably, the distance between each adjacent first electrode 204 and second electrode 208 is equal. The distance between the adjacent first electrode 204 and the second electrode 208 is not limited, and is preferably 10 μm to 1 cm. [0030] The sounding device 20 further includes a first electrode lead 210 and a second electrode lead 212, and the first electrode lead 210 and the second electrode lead 21 2 are respectively connected to the first electrode 204 and the second in the sound emitting device 20 The electrodes 208 are connected to electrically connect the plurality of first electrodes 204 to the first electrode leads 210, and the plurality of second electrodes 208 are electrically connected to the second electrode leads 212, respectively. The sounding device 20 is electrically connected to an external circuit through the first electrode lead 210 and the second electrode lead 21 2 . In the embodiment, the first electrode 204 and the second electrode 208 are filamentary silver electrodes formed by a screen printing method. The number of the first electrodes 204 is four, and the number of the second electrodes 208 is four. The four first electrodes 204 and the four second electrodes 208 are alternately and equally spaced from the substrate 202. Each of the first electrode 204 and the second electrode 208 has a length of 3 cm and a height of 15 μm, and the distance between the adjacent first electrode 204 and the second electrode 208 is 5 mm. Referring to FIG. 6 and FIG. 7, a third embodiment of the present invention provides a sounding device 30, which is substantially identical in structure to the sounding device 20 provided in the second embodiment. The sounding device 30 includes a substrate 302, a plurality of first electrodes 304, a plurality of second electrodes 308, a sounding element 306, a 0115115# single number hall 01 page 11 / 21 pages 1013320185-0 TS75Q46 101 years 08 On the 21st of the month, the shuttle is replacing the page electrode lead 310, a second electrode lead 31 2, and a plurality of fixing members 314. [0033] The sounding element 306 has a first surface 30 62 and a first surface opposite the first surface 3062. Two surfaces 30 64. The first surface 3062 of the sounding element 306 faces and is in contact with the first electrode 304 and the second electrode 308. The sounding element 306 is spaced apart from the substrate 302 by the first electrode 304 and the second electrode 308. The sounding element 306, the plurality of first electrodes 304, and the plurality of second electrodes 308 are formed with the substrate 302 in a plurality of gaps. The sounding device 30 provided in this embodiment is different from the sounding device 20 provided in the second embodiment in that the sounding device 3 further includes at least two fixing members 314 'the at least two fixing members 314 The second surface 3064 of the sound emitting element 306 is disposed opposite to the first electrode 304 and the first electrode 308 respectively to sandwich the sounding element 3〇6 between the first electrode 304 and the second electrode 308 and the fixing element 314. between. By providing the fixing member 314, the electrical contact between the sound generating element 3〇6 and the first electrode 304 and the second electrode 308 can be made better, and the sounding effect of the sounding element 3〇6 can be improved. [0035] The structure of the fixing member 314 may be the same as or different from the structure of the first electrode 3〇4 and the second electrode 3〇8. The material of the fixing member 314 may be a conductive material or an insulating material. The conductive material is a metal, an alloy, a conductive paste, or a tantalum oxide or indium tin oxide. The insulating material is glass, resin or ceramic. When the material of the fixing member 314 is a conductive material, it may be the same as or different from the materials of the first electrode 304 and the second electrode 308. The height of the fixing member 314 is not limited, and is preferably 丨 micrometers to 1 〇〇 micrometers. This embodiment is 09115179# single number A0101, page 12 / total 21 pages 1013320185-0 1375946 ^ Correction replacement page in August 21, 2011 The material of the fixing member 314 is the same as that of the first electrode 304 and the second electrode 308, and is silver. Fixing element 314 is also formed by screen printing and has a height of 15 microns. The number of fixing members 314 is equal to the total number of the first electrodes 304 and the second electrodes 308, which is eight. [0036] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed 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. BRIEF DESCRIPTION OF THE DRAWINGS [0037] FIG. 1 is a schematic structural view of a sounding device in the prior art. 2 is a top plan view of a sound emitting device according to a first embodiment of the present invention. 3 is a cross-sectional view taken along line 11 I - 11 I of FIG. 1. 4 is a top plan view of a sound emitting device according to a second embodiment of the present invention. [0041] FIG. 5 is a cross-sectional view taken along line V-V of FIG. 4. 6 is a top plan view of a sound emitting device according to a third embodiment of the present invention. 7 is a cross-sectional view taken along line VII-VII of FIG. 6. [Main component symbol description] [0044] Sounding device: 10, 20, 30, [0045] Base: 102, 202, 302 9 [0046] First electrode: 104, 204, 304 [0047] Second electrode: 108, 208, 308 Page 13 of 21 Page 1013320185-0 0971517#Single number should be 01 1375946 August 21, 2011 Nuclear replacement page [0048] Sounding element: 106,206 * 3 [0049] First surface: 3062 [ 0050] Second surface·· 3064 [0051] First electrode lead: 210, 310 [0052] Second electrode lead: 212, 312 [0053] Gap: 101 [0054] Fixing element: 314 09715179^^^ A〇101 Page 14 of 21 page 1013320185-0