201001394 九、發明說明： 【發明所屬之技術領域】 本發明涉及-種發聲裝置’尤其涉及一種基於夺米 碳管的發聲裝置。 ’ 【先前技術】 一發聲裳置-般由錢輪入裝置和發聲元件組成。通過 ㈣輸人裝置輸人電信號給發聲元件，進而發出聲音。先 ,前技術中的發聲元件-般爲一揚聲器。該揚聲器爲一種把 電域轉換成聲音信號的電聲器件。具體地，揚聲器可將 y定範圍㈣音頻f功率錢通過換能方式轉變爲失真小 並具有足够聲壓級的可聽聲音。 先前的揚聲器的種類报多，根據其工作原理，分爲： 電，式揚聲器、電磁式揚聲器、靜電式揚聲器及壓電式揚 聲益。雖然它們的工作方式不同，但一般均爲通過産生機 械振動推動周圍的空氣，使空氣介質産生波動從而實現“電 i _力-聲”之轉換。其中，電動式揚聲器的應用最爲廣泛。 請參閱圖1，先前的電動式揚聲器100通常由三部分 組成.音圈102、磁鐵104以及振膜106。音圈1〇2通常採 用通電導體，當音圈102中輸入一個音頻電流信號時，音 圈102相當於一個載流導體。由於放在所述磁鐵1〇4産生 的磁~晨，根據載流導體在磁場中會受到力的作用而運動 的原理，音圈1〇2會受到一個大小與音頻電流成正比、方 向隨音頻電流變化而變化的力。因此，音圈1〇2就會在所 述磁鐵104產生的磁場作用下産生振動，並帶動振膜1〇6 201001394 振動，振膜⑽前後的空氣亦隨之振動，將電信號轉換成 聲波向四周輻射。然而，該電動式揚聲器1〇〇的結構較爲 複雜，且其必須在有磁的條件下工作。 自九十年代初以來’以奈米碳管(請參見職al m.crotubules of graphitic carbon, Nature, Sumi〇 Iijima, v〇1 354，P56(1991))爲代表的奈米材料以其獨特的結構和性質 =了人們極大的關注。近幾年來，隨著奈米碳管及奈米 材料研究的不斷>罙人’其廣_應时景不斷顯現出來。 列如，由於奈米碳管所具有的獨特的電磁學、光學、力學、 ==性能’大量有關其在場發射電子源、傳感器、新型 =予材=、軟鐵磁材料等領域的應用研究不斷被報道。然 先別技術中却尚未發現奈米碳管用於聲學領域。 有鑒於此，提供一種έ士堪雜„ _ ^ 作的發聲裝置實為必要構可在無磁的條件下工 【發明内容】 發聲發聲裝置，其包括：一信號輸入裝置；以及- 接；彳忒發聲70件與所述信號輸入裝置的兩端電連 該夺發聲元件包括至少―層奈米碳管薄膜， 膜包括多個相互平行的奈米碳管，所述信 加二骏置輪入電信號給該發聲元件，通過該發聲元件 加熱周圍氣體介質發出聲波。 w且士輅于先則技術，本技術方案實施例所提供的發聲裝 i舟有以下優點.甘 件僅々 ，、—，由於所述發聲裝置中的發聲元 ^不米妷官薄膜，無需磁鐵等其它複雜結構，故 201001394 口亥發聲裝置的結構較爲簡單，有利於降低該發聲裝置的 =本°其二’該發聲裝置顧輸人信號造成該發聲元件 度蔓化，彳文而使其周圍氣體介質迅速膨脹和收縮，進 而發出聲波’無需振臈’^該發聲元件組成的發聲裝置 可在無磁的條件下工J/p 甘β , 干卜作。其二，由於奈米碳管薄膜具有 較小的熱容和大的fc卜矣& # n ., 山〃 α比表面積’且奈米碳管薄膜中的奈米 :吕相互平彳均勻分布，在輸入信號後，根據信號强 X如電流强度）的變化，由至少一層奈米碳管薄膜組 f的發聲元件可均句地加熱周圍的氣體介#、迅速升降 Μ'f生周期性的溫度變化’並和周圍氣體介質進行快 速熱交換:使周圍氣體介質迅速膨脹和收縮，發出人耳 二，头的聲曰：且所發出的聲音的頻率範圍較寬（皿 ^ 0kHZ、發聲效果較好。另外，當該發聲元件厚度比 較小時’例如小於1 〇料半 — 危^ 微未該發聲几件具有較高的透明 2所形成的發聲裝置爲透明發聲裝置’可以直接安 裝在各種顯示裝置、手機 - 機,4不屏的顯不表面或油晝顯示 裝置、油旦專的表面作爲節省空間的透明發聲裝置。其 四’由於奈米碳管具有較好 杈野的機械强度和韌性，故由相 互平行的奈米碳管組成的至少一 好的機械强度和韌性，耐用,/ r寻m 太半石山… 咐用性較好’從而有利於製備由 “ 们各種形狀、尺寸的發聲装置，進而 方便地應用於各種領域。 【實施方式】 以下將結合附圖詳細說明本技術方案實施例的發聲裝 201001394 請參閱圖2，本技術方案第一實施例提供—種發聲裝 置10，該發聲裝置10包括一信號輸入裝置12，一發聲元 件14，一第一電極142以及一第二電極144。所述第一電 極142和第二電極144間隔設置，且與所述發聲元件14 電連接。所述第一電極142和第二電極144可起到支撑所 述發聲元件14的作用。另外，所述第一電極142和第二電 極144分別通過外接導線149與所述信號輸入裝置12的兩 端電連接’用於將所述信號輸入裝置12中的信號輸入到所 述發聲元件14中。 所述發聲元件14包括至少一層奈米碳管薄膜。請參見 圖3’所述奈米碳管薄膜包括多個相互平行的奈米碳管。 相鄰兩個奈米碳管之間通過凡德瓦爾力緊密結合。所述奈 米碳管薄膜中的相鄰兩個奈米碳管之間的距離小於5〇微 米。所述奈米碳管薄膜的長度爲奈米碳管薄膜中單根奈米 …f管的長度。所述奈米碳管薄膜的寬度不限。所述奈米碳 笞薄膜的厚度爲0.5奈米〜1〇〇微米。所述奈米碳管薄膜的 長度爲1微米〜30毫米。進一步地，所述發聲元件14包括 至少兩層重叠設置的奈求碳管薄膜，相鄰兩層奈米碳管薄 膜之間通過凡德瓦爾力緊密結合，且相鄰兩層奈米碳管薄 膜中的奈米碳管之間具有一交叉角度α，α大於等於〇度 且小於等於90度，具體可依據實際需求製備。當相鄰兩層 奈米碳管薄膜中的奈米碳管之間的夾角α大於〇度時，所 述發聲元件U中的多個奈米碳管形成—網狀結構，且該網 201001394 狀結構包括多個均勻分布的微孔，其孔徑爲小於5〇微米。 當所述發聲元件14包括多層奈求碳管薄膜時，由於相鄰兩 層奈米碳管薄膜之間通過凡德瓦爾力緊密結合，故所述發 聲兀件14具有很好的自支撑性能。所述奈米碳管薄財的 奈^炭管可爲單壁奈求碳管、雙壁奈米碳管及多壁奈米碳 官中的-種或多種。所述單壁奈米碳管的直徑爲〇5奈米 奈米，所述雙壁奈米碳管的直徑爲ι 〇奈米争米j 所述多壁奈米碳管的直徑爲1>5奈米〜5〇奈米。所述發聲 兀件W的厚度爲〇.5奈米〜】毫米。當該發聲元件η的厚 度比叙小時，例如小於1〇微米，該發聲元件Μ具有 轉㈣ί聲元件14的發聲裳置10爲透明發 了以直接安裝在各種顯示裝置、手機顯示屏的 顯不表面或油晝的表面作爲節省”的透明發聲裝置1〇。 狄本技術方案實施例令，所述發聲元件14包括兩芦 ::薄膜’且奈米碳管在該兩層奈米碳管薄膜中沿二 向排列。所述發聲元件14的長度爲 厚度爲50奈米。 見度爲3厘未’ 所述第-電極142和第二電極144由導 其具體形狀結構不限。具體地，所述第-電極14^第i 電極144可選擇爲層狀、棒狀、塊狀或其它形狀。所述； 一電極142和第二電極144的 斤述第 金屬性奈靖、擇爲金屬、導電膠、 咖笛二 (ιτο)等。所述第-電極 4和：二電極144用於實現所述信版 發聲〜間的電連接。進一步地，所述第一電極所二 201001394 和第二電極144可起到支撑所述發聲元件 發聲元件14分別與所述第一電極142和第= 乍用。所述 接，並通過所述第一電極142和第—…144電連 所述發聲元件14爲自支採，所述:：=固定。由於 144也可間隔設置固定在所述發聲元件u兩端或表 至少部分奈米碳管的兩端分別與所述第—電極⑷和第二 電極144電連接。本技術方案實施例中，所 一 和第二電極144爲棒狀金屬電極 2 =極二間隔設置㈣在所述發聲㈣Μ兩端 m的部分奈米㈣的兩端分別與所述第一電極 1: 14二二極144電連接。由於所述第-電極142和第 ；〇時置’所述發聲元件14應用於發聲裝置 且有Γ大的二的阻值避免短路現象產生。由於奈米碳管 "膜，在凡德瓦爾力的作用下，該奈米碳 薄的黏附性，故採用該至少-層奈米碳管 :臈作發聲…4時，所述第一電極142和第二電極144 電=發聲元件14之間可以直接黏附固定，並形成很好的 另外’所述第-電極142和第二電極144與所述發聲 二4之間還可以進—步包括一導電黏結層（圖未示）。所 1導電黏結層可設置於所述發聲元件14的表面。所述導電 二、、’。層在實現第—電極142和第二電極⑷與所述發聲元 件14電接觸的同時，還可以使所述第—電極142和第二電 極144與所述發聲元件14更好地固定。本實施例中，所述 11 201001394 導電黏結層爲一層銀膠。 可：:里解’當所述發聲元件14具有自支撑 述第一電極142與第二雷扠 電極144爲可選擇的結構。所述 號輸入裝置12可直接通過導線或電則線等方式盘= ^聲元件14電連接。任何可實現所述信號輸人裝置、12盘 14之間電連接的方式都在本技術方案的保 蠖耗圍之内。 所述信號輸入裝置12輪入的信號包括交流電信號或 =頻電W#。所述信號輸入裝置12通過導線149與所述 第-電極U2和第二電極144電連接，並通過所述第一電 極142和第一電;^ 144將信號輸入到所述發聲元件μ中。 上述發聲農置10在使用時，由於奈米碳管薄膜具有較 小的熱容和大的比表面積，且奈米碳管薄膜中的奈米碳管 相互平行、均勻分布，在輪入信號後，根據信號强度（如 電抓强度）的變化’由至少一層奈米碳管薄膜組成的發聲 疋件14可均勻地加熱周圍的氣體介質、迅速升降溫、産生 周期性的溫度變化’並和周圍氣體介質進行快速熱交換， $周圍氣體介質迅速膨脹和收縮，發出人耳可感知的聲 =，且所發出的聲音的頻率範圍較寬。本技術方案實施例 提供的發聲裝置10的發聲頻率範圍爲i赫茲至ι〇萬赫茲 (即1Hz〜l〇〇kHz)。故本技術方案實施例中，所述發聲元件 14的發聲原理爲“電_熱_聲，，的轉換，具有廣泛的應用範 圍。另外，本技術方案實施例中的奈米碳管薄膜具有較好 的初性和機械强度，故由至少一層奈米碳管薄骐組成的發 12 201001394 聲元件14可方便地製成各種形狀和尺寸的發聲裝置，該發 聲裝置可方便地應用於各種可發聲的裝置中，如音響、手 機、MP3、MP4、電視、計算機等電子領域及其它發聲装 置中。 请參閱圖4，本技術方案第二實施例提供一種發聲裝 置20，該發聲裝置20包括一信號輸入裝置22、一發聲元 件24、一第一電極242、一第二電極244、一第三電極246 以及一第四電極248。 本技術方案第二實施例中的發聲裝置2〇與第一實施 例中的發聲裝置10的結構基本相同，區別在於，本技術方 案第二實施例中的發聲裝置20包括四個電極，即第一電極 242、第一電極244、第二電極246和第四電極248。所述 第一電極242、第二電極244、第三電極246和第四電極 248均爲棒狀金屬電極，且空間平行間隔設置。所述發聲 元件24環繞所述第一電極242、第二電極2料、第三電極 i 246和第四電極248設置並與所述第一電極242、第二電極 244、第三電極246和第四電極248分別電連接，形成一環 形，聲元件24。任意兩個相鄰的電極均分別與所述信號輸 入裝置22的兩端電連接，以使位於相鄰電極之間的發聲元 件24接入輸入信號。具體地，先將不相鄰的兩個電極用導 線249連接後與所述信號輸入褒置22的一端電連接，剩下 的7個電極用導線249連接後與所述信號輸入裳置22的另 端電連接。本技術方案實施例中，可先將所述第一電極 242和第三電極246用導線249連接後與所述信號輸入裝 13 201001394 置22的一端電連接，再將第二電極244和 用導線249連接後與所述信號輸入裝置22的另一 ° 48 接。上述連接方式可實現相鄰電極之間的發聲：= 聯。並聯後的發聲元件24具有較小的電阻，可降低發：並 件24的工作電屢。且，上述連接方式可使所述發聲^ 24具有較大的幅射面積，且發㈣度㈣增强， :所述發聲7^ 24的面積較大時，； 發聲248也可進—步起到支撑所述 可以理解，所述第一電極242、第二電極244、第三電 和第四電極248也可與所述發聲元件24設置铜一 平面内。所述設置在同—平㈣的各電極 述電極的連接方式相同或相似。 ^式與上 :以理解’本技術方案可設置多個電極，其數量不限， 八需確保任意兩個相鄰的電極均分別與所述信號輸入裝置 22的兩端電連接即可。 :述發聲裝置具有以下優點：其―’由於所述發聲裝 中的發聲讀僅包括奈米碳管薄膜’無需磁鐵等其它複 ’故該發聲褒置的結構較爲簡單，有利於降低該發 ί ΐ的成本。其二’該發聲裝置利用輸入信號造成該發 Μ ’從而使其㈣氣體介質迅速膨服和收 、姑進而發出聲波’無需振膜，且該發聲元件組成的發聲 2可在無磁的條件下工作。其三，由於奈采碳管薄膜具 乂小的熱各和大的比表面積，且奈米碳管薄膜中的奈米 14 201001394 碳管相互平行、均句分布且部分奈米碳管的兩端分別斑所 述信號輸入裝置的兩端電連接，在輸入信號後 ^ 强度（如電流强度）的變化，由至少一層奈米礙管薄^ 成的發聲元件可充分利用奈米碳管㈣性m 導電、導熱性能’可均勻地加熱周圍的氣體介質、迅速升 ，溫、産生周期性的溫度變化’並和周圍氣體 ^交換，使周圍氣體介質迅速膨脹和收縮，發出丁： 感知的聲音，且所發出的聲音的頻率範圍較寬（1Hz ~l〇0kHz)，發聲效果較好，且所述發 快、靈敏度較高。另外，冬兮恭敖_扯 胃應迷度較 的發聲裝置爲透明發聲裝置，可以二二=所形成 詈、丰擁甚女裝在各種顯示裝 手機』不屏的顯示表面或油晝顯示装置、油 間的透明發聲裝置。其四 ：： 件中的多個奈米碳管形成—網狀結構 =孔徑小於50微米㈣额成 ^〜構由夕個 發簦元杜生 取所述微孔的存在可增大所述 聲效果並五由發聲元件的發 則由至小兩声由太半丁、只奴管具有較好的機械强度和物性， 組成的沿不同方向排列的奈米碳管薄膜 好，從而有利於製備由乂發子聲==度和㈣’耐用性較 發聲裳置m^件成的各種形狀、尺寸的 卓凌置，進而方便地應用於各種領域。 提出：二，:發明確已符合發明專利之要件，遂依法 ”月’以上所述者僅為本發明之較佳實施例， 15 201001394 自不能以此限制本案之Μ專利㈣1 =士援依本發明之精神所作之等效修㈣變化，皆 盍於以下申請專利範圍内 【圖式簡單說明】 圖1係先前技術中揚聲器的結構示意圖。 圖2係本技術方案第一實施例發聲裝置的結構示意 λ囷3係本技術方案第一實施例發聲褒置中奈米碳管 薄膜的掃描電鏡照片。 圖4係本技術方案第二實施例發聲裴置的結構示意 100 102 104 106 10, 20 12, 22 14, 24 142, 242 144, 244 149, 249 246 248 【主要元件符號說明】 揚聲器 音圈 磁鐵 振膜 發聲裴置 信號輪入裝置 發聲元件 第一電極 卓一·電極 導線 第三電極 第四電極 16201001394 IX. Description of the Invention: [Technical Field] The present invention relates to a sound emitting device, and particularly to a sound generating device based on a carbon nanotube. [Prior Art] A vocal skirt is generally composed of a money wheeling device and a sounding component. The sound is transmitted to the sounding component through (4) the input device, and then the sound is emitted. First, the sounding component in the prior art is generally a speaker. The speaker is an electroacoustic device that converts an electrical domain into a sound signal. Specifically, the speaker can convert the y-range (4) audio f power money into a audible sound having a small distortion and sufficient sound pressure level by the conversion mode. The previous types of speakers have been reported. According to their working principles, they are divided into: electric, speaker, electromagnetic speaker, electrostatic speaker and piezoelectric speaker. Although they work in different ways, they generally convert the air medium by generating mechanical vibrations, causing the air medium to fluctuate and realize the conversion of “electricity _ force-sound”. Among them, electric speakers are the most widely used. Referring to Fig. 1, the prior electric speaker 100 is generally composed of three parts. a voice coil 102, a magnet 104, and a diaphragm 106. The voice coil 1〇2 usually employs an energizing conductor, and when an audio current signal is input to the voice coil 102, the voice coil 102 corresponds to a current carrying conductor. Due to the magnetic field generated by the magnet 1〇4, according to the principle that the current carrying conductor will be subjected to the force in the magnetic field, the voice coil 1〇2 will be proportional to the audio current and the direction will follow the audio. The force that changes as the current changes. Therefore, the voice coil 1〇2 generates vibration under the action of the magnetic field generated by the magnet 104, and drives the diaphragm 1〇6 201001394 to vibrate, and the air before and after the diaphragm (10) also vibrates, converting the electrical signal into a sound wave direction. Radiation around. However, the structure of the electric speaker 1 is complicated, and it must operate under magnetic conditions. Since the early 1990s, nanomaterials represented by carbon nanotubes (see al m.crotubules of graphitic carbon, Nature, Sumi〇Iijima, v〇1 354, P56 (1991)) are unique. Structure and nature = great concern. In recent years, with the continuous research on carbon nanotubes and nanomaterials, the popularity of the carbon nanotubes and nanomaterials has been continuously revealed. For example, due to the unique electromagnetic, optical, mechanical, and == performance of carbon nanotubes, a large number of applications related to its field emission electron source, sensor, new type = precast material, soft ferromagnetic material, etc. Constantly reported. However, in the prior art, no carbon nanotubes have been found in the field of acoustics. In view of the above, it is necessary to provide a sounding device that can be used in a non-magnetic condition. [Inventive content] A sounding device includes: a signal input device; and - connection; The squeaking sound is electrically connected to the two ends of the signal input device. The sound absorbing element comprises at least a layer of carbon nanotube film, and the film comprises a plurality of carbon nanotubes which are parallel to each other. The electrical signal is sent to the sounding element, and the sounding element is heated by the sounding element to emit sound waves. w. In the prior art, the sounding device provided by the embodiment of the technical solution has the following advantages: Since the sounding element in the sounding device does not require a complicated structure such as a magnet, the structure of the 201001394 mouth sounding device is relatively simple, which is advantageous for reducing the sounding device of the sounding device. The sounding device causes the sounding element to be swelled by the input signal, and the surrounding gas medium rapidly expands and contracts, thereby generating a sound wave 'no need to vibrate' ^ the sounding device composed of the sounding element In the non-magnetic condition, J/p is treated with β, dry work. Second, because the carbon nanotube film has a small heat capacity and a large fc dip &# n ., Hawthorn α specific surface area And the nanometer in the carbon nanotube film: Lu is uniformly distributed with each other, and after the input signal, according to the change of the signal strength X (such as the current intensity), the sounding element of at least one layer of the carbon nanotube film group f can be uniformly Heating the surrounding gas, rapidly raising and lowering the 'periodic temperature change' and performing rapid heat exchange with the surrounding gaseous medium: rapidly expanding and contracting the surrounding gaseous medium, emitting the vocalization of the human ear, the head: The range of frequencies of the emitted sound is wider (the dish ^ 0kHZ, the sounding effect is better. In addition, when the thickness of the sounding element is relatively small, for example, less than 1 half of the material is half-dangerous), the sound is not sounded, and several pieces have a high transparency. The formed sounding device is a transparent sounding device' which can be directly installed on various display devices, mobile phone-machines, 4 non-screen display surface or oil-filled display device, and oil-based surface as a space-saving transparent sounding device. 'Because of nano carbon It has good mechanical strength and toughness of the wilderness, so it consists of at least one good mechanical strength and toughness composed of mutually parallel carbon nanotubes. It is durable, and it is good for it. The sounding device of various shapes and sizes is conveniently applied to various fields. [Embodiment] Hereinafter, the sounding device 201001394 of the embodiment of the present technical solution will be described in detail with reference to the accompanying drawings. Referring to FIG. 2, the first technical solution is provided. The embodiment provides a sounding device 10, which includes a signal input device 12, a sounding element 14, a first electrode 142 and a second electrode 144. The first electrode 142 and the second electrode 144 are spaced apart. And electrically connected to the sound emitting element 14. The first electrode 142 and the second electrode 144 can function to support the sound emitting element 14. In addition, the first electrode 142 and the second electrode 144 are electrically connected to both ends of the signal input device 12 through external wires 149 for inputting signals in the signal input device 12 to the sound emitting element 14 in. The sounding element 14 includes at least one layer of carbon nanotube film. Referring to Figure 3, the carbon nanotube film comprises a plurality of mutually parallel carbon nanotubes. The adjacent two carbon nanotubes are tightly coupled by van der Waals force. The distance between adjacent two carbon nanotubes in the carbon nanotube film is less than 5 〇 micrometers. The length of the carbon nanotube film is the length of a single nano tube in the carbon nanotube film. The width of the carbon nanotube film is not limited. The nanocarbon film has a thickness of from 0.5 nm to 1 μm. The carbon nanotube film has a length of from 1 μm to 30 mm. Further, the sound emitting element 14 includes at least two layers of carbon nanotube film which are arranged in an overlapping manner, and adjacent two layers of carbon nanotube film are closely combined by van der Waals force, and adjacent two layers of carbon nanotube film The carbon nanotubes in the middle have a cross angle α, α is greater than or equal to the twist and less than or equal to 90 degrees, and can be prepared according to actual needs. When the angle α between the carbon nanotubes in the adjacent two layers of carbon nanotube film is greater than the twist, the plurality of carbon nanotubes in the sound generating element U form a network structure, and the mesh is 201001394 The structure includes a plurality of uniformly distributed micropores having a pore size of less than 5 microns. When the sounding element 14 comprises a plurality of layers of carbon nanotube film, the sounding element 14 has good self-supporting properties due to the close bonding between adjacent two layers of carbon nanotube film by van der Waals force. The carbon nanotubes of the carbon nanotubes can be one or more of a single-walled carbon tube, a double-walled carbon nanotube, and a multi-walled nanocarbon. The diameter of the single-walled carbon nanotube is 〇5 nanometer, and the diameter of the double-walled carbon nanotube is ι 〇 争 j j j 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述 所述Nano ~ 5 〇 nano. The thickness of the sounding element W is 〇.5 nm~] mm. When the thickness of the sounding element η is smaller than, for example, less than 1 μm, the sounding element has a rotating sound. The sounding layer 10 of the sound element 14 is transparently distributed to directly mount on various display devices and mobile phone display screens. The surface of the surface or the surface of the oil plaque acts as a "transparent sound-emitting device". In the embodiment of the invention, the sound-emitting element 14 comprises two reeds: a film and a carbon nanotube in the two-layer carbon nanotube film. The middle edge is arranged in two directions. The length of the sound emitting element 14 is 50 nm. The visibility is 3 PCT. The first electrode 142 and the second electrode 144 are not limited by the specific shape structure. Specifically, The first electrode 14 ith electrode 144 may be selected as a layer, a rod, a block or other shapes. The electrode 142 and the second electrode 144 are metallic, selective, metal, and conductive. The first electrode 4 and the second electrode 144 are used to realize the electrical connection between the letter uttering and the second electrode 144. Further, the first electrode is 201001394 and the second electrode 144 can support the sounding element sounding element 14 points And the first electrode 142 and the first electrode 142 are connected, and the sounding element 14 is electrically connected by the first electrode 142 and the first ... 144, the:: = fixed. The 144 is electrically connected to the first electrode (4) and the second electrode 144 respectively by being disposed at both ends of the sound emitting element u or at least a part of the carbon nanotubes at intervals. In the embodiment of the present invention, The first and second electrodes 144 are rod-shaped metal electrodes 2 = the poles are spaced apart from each other. (4) The two ends of the portion (n) of the m ends of the sounding (four) turns are electrically connected to the first electrode 1: 14 two-poles 144, respectively. The sounding element 14 is applied to the sounding device due to the first electrode 142 and the first sounding device 14 and has a large resistance value to avoid short circuit phenomenon. Since the carbon nanotube & film is in the Vander Under the action of Valli, the nano-carbon has a thin adhesion, so when the at least-layer carbon nanotube is used as the sounding ... 4, the first electrode 142 and the second electrode 144 are electrically-inducing element 14 It can be directly adhered and fixed, and forms a good other 'the first electrode 142 and the second electrode 144 Between the utterances 2 and 4, a conductive bonding layer (not shown) may be further included. The conductive bonding layer may be disposed on the surface of the sound emitting element 14. The conductive layer 2, '. While the electrode 142 and the second electrode (4) are in electrical contact with the sound emitting element 14, the first electrode 142 and the second electrode 144 may be better fixed to the sound emitting element 14. In the embodiment, the 11 201001394 The conductive adhesive layer is a layer of silver glue. The following: The inner sounding element 14 has a self-supporting first electrode 142 and a second red joint electrode 144. The number input device 12 can be The sound element 14 is electrically connected directly through a wire or an electric wire or the like. Any manner in which the electrical connection between the signal input device and the 12-disc 14 can be achieved is within the cost of the present technical solution. The signal that the signal input device 12 rotates includes an alternating current signal or a frequency electric power W#. The signal input device 12 is electrically connected to the first electrode U2 and the second electrode 144 via a wire 149, and a signal is input to the sound emitting element μ through the first electrode 142 and the first electrode 144. When the above-mentioned vocal farm 10 is used, since the carbon nanotube film has a small heat capacity and a large specific surface area, and the carbon nanotubes in the carbon nanotube film are parallel and evenly distributed, after the wheeling signal According to the change of signal intensity (such as electric scratch strength), the sounding element 14 composed of at least one layer of carbon nanotube film can uniformly heat the surrounding gas medium, rapidly rise and fall temperature, generate periodic temperature changes, and surround The gas medium undergoes rapid heat exchange, and the surrounding gas medium rapidly expands and contracts, giving the human ear a perceptible sound = and the frequency of the emitted sound is wide. The sounding frequency of the sounding device 10 provided by the embodiment of the present technical solution ranges from iHz to 10,000 kHz (i.e., 1 Hz to 1 kHz). Therefore, in the embodiment of the present technical solution, the sounding principle of the sound emitting element 14 is “electric_thermal_acoustic,” and has a wide range of applications. In addition, the carbon nanotube film in the embodiment of the present technical solution has a comparative Good initiality and mechanical strength, so the hair 12 201001394 acoustic element 14 composed of at least one layer of carbon nanotubes can be conveniently made into sounding devices of various shapes and sizes, and the sounding device can be conveniently applied to various sounding devices. In the device, such as audio, mobile phone, MP3, MP4, television, computer, and other electronic fields and other sounding devices. Referring to FIG. 4, the second embodiment of the present invention provides a sounding device 20, which includes a signal. The input device 22, a sounding element 24, a first electrode 242, a second electrode 244, a third electrode 246, and a fourth electrode 248. The sounding device 2 and the first implementation in the second embodiment of the present technical solution The structure of the sounding device 10 in the example is basically the same, except that the sounding device 20 in the second embodiment of the present technical solution includes four electrodes, that is, the first electrode 242 and the first electrode 244. The second electrode 246 and the fourth electrode 248. The first electrode 242, the second electrode 244, the third electrode 246, and the fourth electrode 248 are all rod-shaped metal electrodes, and are spatially spaced apart. The sounding element 24 surrounds. The first electrode 242, the second electrode 2, the third electrode i 246, and the fourth electrode 248 are disposed and electrically connected to the first electrode 242, the second electrode 244, the third electrode 246, and the fourth electrode 248, respectively. Forming a ring, acoustic element 24. Any two adjacent electrodes are electrically connected to both ends of the signal input device 22, respectively, such that the sounding element 24 located between adjacent electrodes is connected to the input signal. First, two electrodes that are not adjacent are connected by a wire 249 and then electrically connected to one end of the signal input device 22, and the remaining seven electrodes are connected by a wire 249 and the other end of the signal input skirt 22 In the embodiment of the present invention, the first electrode 242 and the third electrode 246 may be connected by a wire 249 and then electrically connected to one end of the signal input device 13 201001394 22, and then the second electrode 244. And after connecting with the wire 249 The other input 48 of the input device 22 can realize the sounding between the adjacent electrodes: = connected. The sounding element 24 after the parallel connection has a small resistance, which can reduce the working frequency of the hair piece 24 Moreover, the above connection manner can make the sounding surface 24 have a larger radiation area, and the hair is (four) degrees (four) enhanced, when the area of the sounding 7^24 is large, the sounding 248 can also be advanced. It can be understood that the first electrode 242, the second electrode 244, the third electric and the fourth electrode 248 can also be disposed in a plane with the sound emitting element 24. The same is set in the same plane (four) The electrodes are connected in the same or similar manner. ^式和上: To understand that the present technical solution can be provided with a plurality of electrodes, the number of which is not limited, and eight need to ensure that any two adjacent electrodes are electrically connected to both ends of the signal input device 22, respectively. The sound generating device has the following advantages: "Because the vocal reading in the sounding device only includes the carbon nanotube film", no other functions such as magnets are required, so the structure of the sounding device is relatively simple, which is advantageous for reducing the hair. ί ΐ cost. Secondly, the sounding device uses the input signal to cause the hairpin' so that the (four) gas medium rapidly expands and receives, and then emits sound waves, without the need for a diaphragm, and the sounding element composed of the sounding element can be in a non-magnetic condition. jobs. Third, because the carbon film of Nai Cai has a small heat and a large specific surface area, and the nano 14 201001394 carbon tubes in the carbon nanotube film are parallel to each other, and the two ends of the carbon nanotubes are distributed. The two ends of the signal input device are respectively electrically connected, and after the input signal, the intensity (such as the current intensity) changes, and the sound generating element formed by at least one layer of nano tube can make full use of the carbon nanotube (four) m Conductive and thermal conductivity 'can uniformly heat the surrounding gaseous medium, rapidly rise, warm, produce periodic temperature changes' and exchange with the surrounding gas, so that the surrounding gaseous medium rapidly expands and contracts, emitting a sensible sound, and The frequency of the emitted sound is wider (1 Hz ~ l 〇 0 kHz), the sounding effect is better, and the speed is faster and the sensitivity is higher. In addition, the winter 兮 兮 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Transparent sounding device between oils. The fourth:: the formation of a plurality of carbon nanotubes in the piece - the network structure = the pore diameter is less than 50 micrometers (four), the amount of the formation of the micropores can be increased by the presence of the micropores The effect is five. The hair-emitting component is made up of two sounds, and the slave tube has good mechanical strength and physical properties. The composition of the carbon nanotube film arranged in different directions is good, which is beneficial to the preparation. The sound of the hair is == degrees and (4) the durability is more than that of the various shapes and sizes of the sound, and it is conveniently used in various fields. It is proposed that: Second, the invention has indeed met the requirements of the invention patent, and the above is only the preferred embodiment of the invention according to the law, and 15 201001394 can not limit the patent in this case (4) 1 = Shi Yuanyi The invention is based on the following claims: Figure 1 is a schematic view of the structure of the speaker in the prior art. Figure 2 is a structure of the sounding device of the first embodiment of the present technical solution. λ囷3 is a scanning electron micrograph of a carbon nanotube film in a sounding device according to a first embodiment of the present technical solution. Fig. 4 is a schematic structural diagram of a sounding device according to a second embodiment of the present technical solution 100 102 104 106 10, 20 12 , 22 14, 24 142, 242 144, 244 149, 249 246 248 [Description of main component symbols] Speaker voice coil magnet diaphragm sounding signal signal wheeling device sounding element first electrode Zhuo·electrode wire third electrode fourth Electrode 16