201112783 六、發明說明： 【發明所屬之技術領域】 闺本發日歸及-種定心支片及使贱定心支片之揚聲器。 [先前技術] _2]揚聲器係將電能轉化為機械能之電子元件，應用廣泛， 如電话、移動通訊終端、電腦、電視機、盒式磁帶、聲 音設備和汽車等。 _先前技術中之揚聲器大部分採用電動式揚聲器，該揚聲 〇 器-般包括振動膜、音圈、音圈骨架、定心支片及磁場 系統等。該揚聲職由音圈於磁場下運動，推動振動膜 振動並發出聲波。 、 _ “支片係揚聲器之重餘成之…定心Μ於揚聲器 ‘ 中可崎㈣膜_緩_用，對音时架起到限位作 . .用。定心支片用於支持音圈骨架和振動臈之結合部位， 保證其垂直而不歪斜 '定心支片可以使纏繞於音圈骨架 之音圈於磁場間隙中自由地上下移動而不作橫向移動， 紐音圈不與磁場系蜣中之導破板相碰。另外，定心支 片還可以Ρ方止外部灰塵等落至磁場間隙，避免造成灰塵 與音圈摩擦，而使揚聲器產生異常聲音。201112783 VI. Description of the invention: [Technical field to which the invention belongs] This is the date of the present invention - the type of centering piece and the speaker that makes the heart-shaped piece. [Prior Art] _2] Loudspeakers are electronic components that convert electrical energy into mechanical energy, such as telephones, mobile communication terminals, computers, televisions, cassette tapes, audio equipment, and automobiles. Most of the speakers in the prior art use electric speakers, which generally include diaphragms, voice coils, voice coil bobbins, centering struts, and magnetic field systems. The speaker is moved by the voice coil under the magnetic field to push the diaphragm to vibrate and emit sound waves. , _ "The weight of the speaker system is the focus of the speaker... Centering on the speaker" in the middle of the Kawasaki (four) film _ slow _ use, on the sound frame to limit the position. Use. Centering piece for support sound The combination of the ring skeleton and the vibrating cymbal ensures that it is vertical without skewing. The centering struts can freely move the voice coil wound around the voice coil skeleton up and down in the magnetic field gap without lateral movement. The neosound ring is not connected to the magnetic field system. In the middle of the smashing, the broken plates collide. In addition, the centering slabs can also stop the external dust and the like from falling into the magnetic field gap, avoiding the friction between the dust and the voice coil, and causing the speaker to produce an abnormal sound.
LDUUbJ 叉片通常要求袖向彈性大 098132000 -----"^八w恥而，先 前之定心支片通常由聚合物、金屬或紙等材料组成其 抽向彈性較小，㈣強触小，這造歧心3U不能適 應音圏之魏動，從㈣響揚聲器之發聲效果。此外， 先前之定心支片很容易於反復振動中疲勞變形，從而產 =Γ軸向=，聲器之使用壽命縮短， 0982054897-0 201112783 音質變差。 【發明内容】 [0006] 有鑒於此，確有必要提供一種具有良好彈性、強度和耐 疲勞性之定心支片及使用該定心支片之揚聲器。 [0007] 一種定心支片，其具有一通孔及以該通孔為對稱中心之 振紋，其中，該定心支片包括至少一基體及至少一奈米 碳管結構，該奈米碳管結構設置於該基體之至少一表面 [0008] 一種定心支片，其包括至少一基體，該基體為具有一通 孔之圓環形片體，且該基體之斷面係以所述通孔為對稱 中心之波浪形，其中，該定心支片進一步包括至少一奈 米碳管結構，該奈米碳管結構設置於該基體之至少一表 面。 [0009] 一種揚聲器，其包括一音圈骨架，一音圈，該音圈設置 於所述音圈骨架；一振動膜，該振動膜與所述音圈骨架 之一端相連接；一定心支片，該定心支片套設於所述音 圈骨架；以及一磁場系統，該磁場系統具有一磁場間隙 ，該磁場間隙中設置有所述音圈；其中，所述定心支片 包括至少一基體及至少一奈米碳管結構，該奈米碳管結 構設置於該基體之至少一表面。 [0010] 與先前技術相比較，本發明提供之定心支片及使用該定 心支片之揚聲器具有以下優點：由於奈米碳管具有優異 之強度及彈性，故由奈米碳管組成之奈米碳管結構之強 度及彈性較大，因此，奈米碳管結構與基體疊加形成之 0982054897-0 098132000 表單編號A0101 第4頁/共32頁 201112783 Ο [0011] [0012] 〇 [0013] 複合多層結構，可以提高定心支片之彈性，增加定心支 片之強度，使其更有利於起到對振動膜之緩衝作用、對 音圈骨架之限位作用，而且使定心支片於反復振動中不 容易疲勞變形，進而不容易產生沿揚聲器軸向之塌陷， 使得使用該定心支片之揚聲器之使用壽命增加，音質較 好。另外，奈米碳管具有較小之密度，則由奈米碳管組 成之奈米碳管結構之密度也較小，從而可提高由奈米碳 管結構與基體組成之定心支片及採用該定心支片之揚聲 器之比強度，或於維持甚至提高定心支片之強度及彈性 之同時減小定心支片之重量。 【實施方式】 下面將結合附圖及具體實施例，對本發明提供之定心支 片及使用該定心支片之揚聲器作進一步之詳細說明。 請參閱圖1及圖2，本發明第一實施例提供一種定心支片 10，該定心支片10之形狀與大小不限，可β根據實際需 要製備。所述定心支片10具有一通孔16及以該通孔16為 對稱中心之振紋。所述定心支片10包括一基體12以及兩 個奈米碳管結構14，且該基體12設置於該兩個奈米碳管 結構14之間，形成一三層結構。 所述通孔16設置於所述定心支片10之中央處，並穿過該 定心支片10之基體12及兩個奈米碳管結構14。該通孔16 之形狀及直徑與揚聲器中之音圈骨架的形狀及直徑相匹 配，以便組裝揚聲器時可以使定心支片10套設於所述音 圈骨架。所述定心支片10之振紋形狀為鋸齒形、波浪形 或漸開線形等。本實施例中，所述定心支片10為一以所 098132000 表單編號Α0101 第5頁/共32頁 0982054897-0 201112783 述通孔16為中心之複數個同心圓環形片體，其斷面為由 複數個波峰與波谷交替構成之波浪形。所述定心支片10 之厚度為大於等於1微米且小於等於2毫米。所述定心支 片10之製備方法不限，具體地，所述定心支片10之製備 方法可以為將上述基體12及兩個奈米碳管結構14形成之 三層結構進行壓褶成型得到以通孔16為圓心之複數個同 心圓環形之波浪狀片體。可以理解，本實施例中還可以 先製備沒有通孔之定心支片預製體，然後藉由於上述圓 心打孔得到通孔16。 [0014] 所述基體12具有較好之彈性及較高之比強度，有利於增 強該定心支片10對振動膜之緩衝以及對音圈骨架之限位 作用。所述基體12為紙、布、纖維素膜或聚合物膜。具 體地，該基體12為玻璃纖維布、牛皮紙、聚對苯二甲酸 乙二酯膜、聚醯亞胺膜、聚苯硫醚膜、聚丙烯膜、聚苯 乙烯膜、聚氣乙烯膜或聚醚颯膜等。本實施例中，所述 基體12為聚醯亞胺膜。 [0015] 所述奈米碳管結構14可以為一層狀結構，其包括至少一 層奈米碳管膜。所述至少一層奈米碳管膜可鋪設或纏繞 於所述基體12之表面構成所述定心支片10。所述奈米碳 管膜包括均勻分佈之複數個奈米碳管，該複數個奈米碳 管之間藉由凡德瓦爾力緊密結合。該奈米碳管膜中之奈 米碳管為無序排列或有序排列。所謂無序排列係指奈米 碳管之排列方向無規則。所謂有序排列係指奈米碳管之 排列方向有規則。具體地，當奈米碳管結構包括無序排 列之奈米碳管時，奈米碳管相互纏繞或者各向同性排列 098132000 表單編號A0101 第6頁/共32頁 0982054897-0 201112783 ;當奈米碳管結構包括有序排列之奈米碳管時，奈米碳 ' 管沿一個方向或者複數個方向擇優取向排列。所述奈米 碳管結構14中之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之一種或多種。所述單壁奈米碳 管之直徑為0. 5奈米〜50奈米，所述雙壁奈米碳管之直徑 為1. 0奈米〜50奈米，所述多壁奈米碳管之直徑為1. 5奈 米~50奈米。具體地，所述奈米碳管膜包括奈米碳管拉膜 、奈米碳管碾壓膜、奈米碳管絮化膜等中之一種或多種 〇 [0016] 〇 請參閱圖3，所述奈米碳管拉膜包括複數個奈米碳管，該 複數個奈米碳管基本沿同一方向擇優取向排列，且基本 平行於該奈米碳管拉膜之表面。具體地，所述奈米碳管 拉膜包括複數個藉由凡德瓦爾力首尾相連且基本沿同一 方向擇優取向排列之奈米碳管。所述奈米碳管拉膜可藉 由從奈米碳管陣列直接拉取獲得。可以理解，藉由將複 數個奈米碳管拉膜平行且無間隙鋪設或/和層疊鋪設，可 〇 以製備不同面積與厚度之奈米碳管結構。當奈米碳管結 構包括複數個層疊設置之奈米碳管拉膜時，相鄰之奈米 碳管拉膜中之奈米碳管之排列方向形成一夾角a，0°$ α$90°。多層層疊設置之奈米碳管拉膜，尤其係多層交 叉設置之奈米碳管拉膜相對單層奈米碳管拉膜具有更高 之強度，從而有利於提高所述定心支片之比強度。所述 奈米碳管拉膜之結構及其製備方法請參見范守善等人於 200 7年2月12日申請，於2008年8月16日公開的第 200833862號中華民國公開專利申請。 098132000 表單編號A0101 第7頁/共32頁 0982054897-0 201112783 [0017] 所述奈米碳管碾壓膜包括均勻分佈之複數個奈米碳管.。 所述複數個奈米碳管無序’沿同一方向或不同方向擇優 取向排列。所述奈米碳管碾壓膜中之奈米碳管相互部分 交疊，並藉由凡德瓦爾力相互吸引，緊密結合。所述奈 米碳管碾壓膜可藉由碾壓一奈米碳管陣列獲得。該奈米 碳管陣列形成於一基底表面，所製備之奈米碳管碾壓膜 中之奈米碳管與該奈米碳管陣列之基底之表面成一夾角 冷，其中，冷大於等於0度且小於等於15度（0°SySS15 °)。優選地，所述奈米碳管碾壓膜中之奈米碳管平行於 所述奈米碳管碾壓膜之表面。依據碾壓之方式不同，該 奈米碳管碾壓膜中之奈米碳管具有不同之排列形式。由 於奈米碳管碾壓膜中之奈米碳管之間藉由凡德瓦爾力相 互吸引，緊密結合，使奈米碳管碾壓膜為一自支撐之結 構，可無需基底支撐，自支撐存在。所謂自支撐結構即 所述奈米碳管碾壓膜中之複數個奈米碳管間藉由凡德瓦 爾力相互吸引，從而使奈米碳管碾壓膜具有特定之形狀 。所述奈米碳管碾壓膜及其製備方法請參見范守善等人 於2007年6月29日申請的，於2009年1月1日公開的第 20 0 90 0 348號中華民國專利申請。 [0018] 所述奈米碳管絮化膜包括相互纏繞之奈米碳管，該奈米 碳管長度可大於10厘米。所述奈米碳管之間藉由凡德瓦 爾力相互吸引、纏繞，形成網路狀結構。所述奈米碳管 絮化膜各向同性。所述奈米碳管絮化膜中之奈米碳管為 均勻分佈，無規則排列，形成大量之微孔結構，微孔孔 徑為1奈米~10微米。可以理解，所述奈米碳管絮化膜之 098132000 表單編號A0101 第8頁/共32頁 0982054897-0 201112783 長度、寬度和厚度不限，可根據實際需要選擇。所述奈 米碳管絮化膜及其製備方法請參見范守善等人於2007年5 月11日申請的，於2008年11月16日公開的第200844041 號中華民國專利申請。 [0019] Ο [0020] 所述奈米碳管膜還包括採用喷塗法將含有奈米碳管之漿 料喷塗到一基體上而形成之奈米碳管膜，該採用喷塗法 形成之奈米碳管膜之長度、寬度和厚度不限，可根據實 際需要選擇。所述採用喷塗法形成之奈米碳管膜中之奈 米碳管之間藉由粘結劑相互結合，且奈米碳管於該奈米 碳管膜中無規則排列。 ❹ [0021] 本實施例中，所述奈米碳管結構14為奈米碳管拉膜。該 奈米碳管拉膜中之奈米碳管為多壁奈米碳管。該多壁奈 米碳管之直徑為1. 5奈米~50奈米。所述基體12和兩個奈 米碳管結構14可藉由粘結劑緊密結合或藉由熱壓方式結 合形成三層結構。當所述基體12和奈米碳管結構14藉由 粘結劑緊密結合時，該粘結劑與基體12之具體材料有關 ，如當所述基體12為金屬時，該粘結劑可為銀膠。 可以理解，所述奈米碳管結構14與基體12接觸之部分， 奈米碳管可部分滲透於基體12内部，從而可實現奈米碳 管結構14與基體12之間之緊密結合。所述定心支片10也 可以藉由所述基體12及一個奈米碳管結構14形成一雙層 結構。 進一步，所述定心支片10上可以設置有複數個導線（圖 未示）。所述導線用來向音圈提供電流，從而使音圈於 098132000 表單編號Α0101 第9頁/共32頁 0982054897-0 [0022] 201112783 磁殤中運動。所料線藉由減—定於該定心支片 表面。將導線固定於，可以減緩振動過程 中導線受到之拉力’從而使導線輿音_元件之連接處 不易斷開。 [0023] [0024] [0025] 乐一K施例提供一定心支片 ’，、 又，^又灼乙υ ，疋 心支片20之形狀與第—實施例中 <定心支㈣之形狀相 同，也包括-通孔26。所述定心乂片2〇包括一基體以和 〆条米碳管結構21本實施例與第—實施例提供之定心 支片10不同之處在於：所述奈米衫結觀包括一個奈 米旅管線狀結構’該奈Μ管線狀結構藉由所述通孔Μ 纏繞於所述基體22之表面。所述奈米碳㈣狀結構之直 徑為0. 5奈米〜1毫米。 : 所述奈*碳管線狀結構包括至少〜個奈米碳管線，該奈 米破營線可為-非扭轉之奈米碳營線或扭轉之奈米礙管 線。所述奈轉管線狀結構包括後數個奈輕管線時， 該奈米碳管線㈣構可以為由概個奈米碳管線平行設 置組成之-束狀結構或由複數個奈*碳管線相互扭轉組 成之一絞線結構。 所述非扭轉之奈来碳管線可包純數個沿該非扭轉之奈 米破線長度方向排列之奈米碳管。非扭轉之奈米碳管 線可藉由將奈米碳管拉膜藉由有機溶#丨處理得到。具體 地，該奈米碳管拉膜包括複數個奈米碳管片段，該複數 個奈米碳管片段藉由凡德瓦爾力首尾相連，每一奈米碳 管片段包括複數個相互平行並藉由凡德瓦爾力緊密結合 098132000 之奈米碳管 表單編號A0101 °該奈米碳管片段具有任意之長度、厚度、 第 10 頁/共 32 頁 0982054897-0 201112783 Ο [0026] 均勻性及形狀。該非扭轉之奈米碳管線長度不限，直徑 為0. 5奈米〜1毫米。具體地，可將有機溶劑浸潤所述奈米 碳管拉膜之整個表面，於揮發性有機溶劑揮發時產生之 表面張力之作用下，奈米碳管拉膜中之相互平行之複數 個奈米碳管藉由凡德瓦爾力緊密結合，從而使奈米碳管 拉膜收縮為一非扭轉之奈米碳管線。該有機溶劑為揮發 性有機溶劑，如乙醇、曱醇、丙酮、二氣乙烷或氣仿， 本實施例中採用乙醇。藉由有機溶劑處理之非扭轉奈米 碳管線與未經有機溶劑處理之奈米碳管膜相比，比表面 積減小，粘性降低。 Ο [0027] 所述扭轉之奈米碳管線包括複數個繞該扭轉之奈米碳管 線軸向螺旋排列之奈米碳管。該奈米碳管線可採用一機 械力將所述奈米碳管拉膜兩端沿相反方向扭轉獲得。進 一步地，可採用一揮發性有機溶劑處理該扭轉之奈米碳 管線。於揮發性有機溶劑揮發時產生之表面張力之作用 下，處理後之扭轉之奈米碳管線中相鄰之奈米碳管藉由 凡德瓦爾力緊密結合，使扭轉之奈米碳管線之比表面積 減小，密度及強度增大。 所述奈米碳管線及其製備方法請參見范守善等人於2002 年11月5日申請的，2008年11月21日公告的，公告號為 1303239的中華民國專利；以及於2005年12月16日申請 的，2009年7月21日公告的，公告號為1312337的中華民 國專利。 本實施例中，所述奈米碳管結構24為由三個扭轉之奈米 碳管線相互扭轉組成之一絞線結構。 098132000 表單編號Α0101 第11頁/共32頁 0982054897-0 [0028] 201112783 [〇〇29]可以理解’所述奈米碳管結構24也可包括-奈米碳管混 。線狀結構（圖未示）。該奈米碳管混合線狀結構包括 '丁、米碳管線與其他材料之線平行設置組成之一束狀結構 〆由'τ'米石反管線與其他材料之線相互扭轉組成之一絞線 〜構。優選地’該其他材料之線需具有較好之彈性、強 度以及較小之密度。該其他材料為聚合物、紙、纖維、 布或金屬等。 []°月參見圖5’本發明第三實施例提供一定心支片3〇,該定 、支片30之形狀與第一實施例提供之定心支片1〇之形狀 0 相同。所述定心支片30包括一個基體32和一個奈米碳管LDUUbJ forks usually require a large elastic sleeve 098132000 -----"^八w shame, the previous centering piece is usually composed of polymer, metal or paper, and its direction is less elastic, (4) strong touch Small, this ambiguity 3U can not adapt to the sound of the sound of the sound, from the sound of the speaker. In addition, the previous centering piece is easy to be fatigue-deformed in repeated vibrations, resulting in a = axial direction =, the life of the sounder is shortened, 0982054897-0 201112783 sound quality is worse. SUMMARY OF THE INVENTION [0006] In view of the above, it is indeed necessary to provide a centering piece having good elasticity, strength, and fatigue resistance and a speaker using the same. [0007] A centering piece having a through hole and a vibration pattern having a center of symmetry of the through hole, wherein the centering piece includes at least one substrate and at least one carbon nanotube structure, the carbon nanotube The structure is disposed on at least one surface of the substrate. [0008] A centering piece includes at least one base body, the base body is an annular ring body having a through hole, and the base body has a cross section of the through hole a wavy shape of the center of symmetry, wherein the centering piece further comprises at least one carbon nanotube structure disposed on at least one surface of the substrate. [0009] A speaker includes a voice coil bobbin, a voice coil disposed on the voice coil bobbin; a vibrating membrane connected to one end of the voice coil bobbin; The centering piece is sleeved on the voice coil bobbin; and a magnetic field system having a magnetic field gap, wherein the magnetic field gap is provided with the voice coil; wherein the centering piece includes at least one a substrate and at least one carbon nanotube structure, the carbon nanotube structure being disposed on at least one surface of the substrate. [0010] Compared with the prior art, the centering piece provided by the present invention and the speaker using the same have the following advantages: since the carbon nanotube has excellent strength and elasticity, it is composed of a carbon nanotube. The strength and elasticity of the carbon nanotube structure are large. Therefore, the structure of the carbon nanotube structure and the substrate are superposed. 0982054897-0 098132000 Form No. A0101 Page 4 / Total 32 Page 201112783 Ο [0011] [0012] 〇 [0013] Composite The multi-layer structure can improve the elasticity of the centering piece and increase the strength of the centering piece, so that it is more conducive to the buffering effect on the diaphragm and the limiting effect on the voice coil skeleton, and the centering piece is In the repeated vibration, it is not easy to be fatigue-deformed, and thus it is not easy to cause collapse along the axial direction of the speaker, so that the life of the speaker using the centering piece is increased, and the sound quality is good. In addition, the carbon nanotubes have a smaller density, and the carbon nanotube structure composed of the carbon nanotubes has a smaller density, thereby improving the centering piece composed of the carbon nanotube structure and the substrate and adopting the same. The specific strength of the speaker of the heart piece, or to maintain or even increase the strength and elasticity of the centering piece while reducing the weight of the centering piece. [Embodiment] Hereinafter, a centering piece provided by the present invention and a speaker using the centering piece will be further described in detail with reference to the accompanying drawings and specific embodiments. Referring to FIG. 1 and FIG. 2, the first embodiment of the present invention provides a centering support piece 10, and the shape and size of the centering support piece 10 are not limited, and can be prepared according to actual needs. The centering piece 10 has a through hole 16 and a vibration pattern having the through hole 16 as a center of symmetry. The centering support 10 includes a base 12 and two carbon nanotube structures 14, and the base 12 is disposed between the two carbon nanotube structures 14 to form a three-layer structure. The through hole 16 is disposed at the center of the centering piece 10 and passes through the base 12 and the two carbon nanotube structures 14 of the centering piece 10. The shape and diameter of the through hole 16 match the shape and diameter of the voice coil bobbin in the speaker, so that the centering support 10 can be placed over the voice coil bobbin when the speaker is assembled. The vibrating shape of the centering piece 10 is a zigzag shape, a wave shape or an involute shape. In this embodiment, the centering support piece 10 is a plurality of concentric annular ring bodies centered on the through hole 16 of the 988132000 form number Α0101 5th page/32 page 0982054897-0 201112783. It is a wave shape composed of a plurality of peaks and troughs alternately. The thickness of the centering piece 10 is 1 μm or more and 2 mm or less. The preparation method of the centering piece 10 is not limited. Specifically, the method for preparing the centering piece 10 may be pleating forming the three-layer structure formed by the base 12 and the two carbon nanotube structures 14 . A plurality of concentric annular wavy sheets having a center of the through hole 16 are obtained. It can be understood that in this embodiment, the centering piece preform having no through hole can be prepared first, and then the through hole 16 is obtained by punching the center hole. [0014] The base body 12 has better elasticity and higher specific strength, which is beneficial to enhancing the buffering of the diaphragm by the centering support piece 10 and the limiting effect on the voice coil bobbin. The substrate 12 is a paper, cloth, cellulose film or polymer film. Specifically, the substrate 12 is a glass fiber cloth, a kraft paper, a polyethylene terephthalate film, a polyimide film, a polyphenylene sulfide film, a polypropylene film, a polystyrene film, a polyethylene film or a poly Ether film and the like. In this embodiment, the substrate 12 is a polyimide film. [0015] The carbon nanotube structure 14 may be a layered structure comprising at least one layer of carbon nanotube film. The at least one layer of carbon nanotube film may be laid or wound around the surface of the substrate 12 to constitute the centering piece 10. The carbon nanotube film includes a plurality of carbon nanotubes uniformly distributed, and the plurality of carbon nanotubes are tightly coupled by a van der Waals force. The carbon nanotubes in the carbon nanotube film are disordered or ordered. The so-called disordered arrangement means that the arrangement direction of the carbon nanotubes is irregular. The so-called ordered arrangement means that the arrangement of the carbon nanotubes is regular. Specifically, when the carbon nanotube structure includes a disordered arrangement of carbon nanotubes, the carbon nanotubes are intertwined or isotropically arranged 098132000. Form No. A0101 Page 6 / Total 32 pages 0982054897-0 201112783; When the carbon tube structure includes an ordered arrangement of carbon nanotubes, the nanocarbon 'tubes are arranged in a preferred orientation in one direction or in a plurality of directions. The carbon nanotubes in the carbon nanotube structure 14 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 1. 5 nm ~ 50 nm. Specifically, the carbon nanotube film includes one or more of a carbon nanotube film, a carbon nanotube film, a carbon nanotube film, and the like. [0016] Please refer to FIG. The carbon nanotube film comprises a plurality of carbon nanotubes, and the plurality of carbon nanotubes are arranged substantially in the same direction and substantially parallel to the surface of the carbon nanotube film. Specifically, the carbon nanotube film comprises a plurality of carbon nanotubes arranged end to end by van der Waals force and arranged in a preferred orientation along the same direction. The carbon nanotube film can be obtained by directly pulling from a carbon nanotube array. It can be understood that the carbon nanotube structures of different areas and thicknesses can be prepared by laminating a plurality of carbon nanotube films in parallel and without gaps or/and laminating. When the carbon nanotube structure comprises a plurality of laminated carbon nanotube films, the arrangement of the carbon nanotubes in the adjacent carbon nanotube film forms an angle a, 0°$α$90°. The multi-layer stacked nano carbon tube film, especially the multi-layer cross-setting carbon nanotube film, has higher strength than the single-layer carbon tube film, thereby facilitating the ratio of the centering piece strength. For the structure of the carbon nanotube film and the preparation method thereof, please refer to the application filed by Fan Shoushan et al. on February 12, 2007, and the public patent application No. 200833862, published on August 16, 2008. 098132000 Form No. A0101 Page 7 of 32 0982054897-0 201112783 [0017] The carbon nanotube rolled film comprises a plurality of carbon nanotubes uniformly distributed. The plurality of carbon nanotubes are randomly arranged in the same direction or in different directions. The carbon nanotubes in the carbon nanotube rolled film partially overlap each other and are closely attracted to each other by the van der Waals force. The carbon nanotube rolled film can be obtained by rolling an array of carbon nanotubes. The carbon nanotube array is formed on a surface of the substrate, and the carbon nanotubes in the prepared carbon nanotube rolled film are cold at an angle to the surface of the substrate of the carbon nanotube array, wherein the cold is greater than or equal to 0 degrees. And less than or equal to 15 degrees (0 ° SySS 15 °). Preferably, the carbon nanotubes in the carbon nanotube rolled film are parallel to the surface of the carbon nanotube rolled film. The carbon nanotubes in the carbon nanotube rolled film have different arrangements depending on the manner of rolling. Since the carbon nanotubes in the carbon nanotube film are attracted to each other by the van der Waals force, the carbon nanotube film is a self-supporting structure, which can be self-supported without substrate support. presence. The so-called self-supporting structure, that is, a plurality of carbon nanotubes in the carbon nanotube rolled film are attracted to each other by van der Waals force, so that the carbon nanotube rolled film has a specific shape. For the carbon nanotube rolling film and the preparation method thereof, please refer to the Patent Application No. 20 0 90 0 348 of the Japanese Patent Application No. 20 0 90 0 348, filed on Jun. [0018] The carbon nanotube flocculation membrane comprises intertwined carbon nanotubes, the carbon nanotubes having a length greater than 10 cm. The carbon nanotubes are attracted and entangled with each other by van der Waals force to form a network structure. The carbon nanotube flocculation membrane is isotropic. The carbon nanotubes in the carbon nanotube flocculation membrane are uniformly distributed and randomly arranged to form a large number of microporous structures, and the pore diameters are from 1 nm to 10 μm. It can be understood that the carbon nanotube filming film 098132000 Form No. A0101 Page 8 of 32 0982054897-0 201112783 The length, width and thickness are not limited, and can be selected according to actual needs. For the carbon nanotube flocculation membrane and the preparation method thereof, please refer to the patent application of the Republic of China patent No. 200844041, which was filed on May 11, 2007 by Fan Shoushan et al. [0020] The carbon nanotube film further includes a carbon nanotube film formed by spraying a slurry containing a carbon nanotube onto a substrate by a spray coating method, which is formed by spraying The length, width and thickness of the carbon nanotube film are not limited and can be selected according to actual needs. The carbon nanotubes in the carbon nanotube film formed by the spray coating are bonded to each other by a binder, and the carbon nanotubes are randomly arranged in the carbon nanotube film. [0021] In this embodiment, the carbon nanotube structure 14 is a carbon nanotube film. The carbon nanotubes in the carbon nanotube film are multi-walled carbon nanotubes. The diameter of the multi-walled carbon nanotube is 1. 5 nm to 50 nm. The substrate 12 and the two carbon nanotube structures 14 may be bonded by a binder or by a combination of heat and pressure to form a three-layer structure. When the substrate 12 and the carbon nanotube structure 14 are tightly bonded by a binder, the binder is related to a specific material of the substrate 12, such as when the substrate 12 is a metal, the binder may be silver. gum. It can be understood that the portion of the carbon nanotube structure 14 in contact with the substrate 12 can partially penetrate the inside of the substrate 12, so that the tight bonding between the carbon nanotube structure 14 and the substrate 12 can be achieved. The centering support 10 can also form a two-layer structure by the base 12 and a carbon nanotube structure 14. Further, the centering piece 10 may be provided with a plurality of wires (not shown). The wire is used to supply current to the voice coil, so that the voice coil is in 098132000 Form No. 1010101 Page 9 of 32 0982054897-0 [0022] 201112783 Movement in the magnetic cymbal. The line is reduced by the surface of the centering piece. Fixing the wire to slow the tension on the wire during the vibration process makes it difficult for the wire to be disconnected. [0025] [0025] The Le-K embodiment provides a certain core support piece, and, in addition, the shape of the heart-shaped support piece 20 and the embodiment - the centering branch (4) The shape is the same and also includes a through hole 26. The centering cymbal 2 〇 includes a base body and the dam strip carbon nanotube structure 21. The present embodiment is different from the centering slab 10 provided in the first embodiment in that the nano jersey includes a nai The rice brigade-like structure is wound around the surface of the substrate 22 by the through-holes. 5纳米〜1毫米。 The diameter of the nano-carbon (tetra)-like structure is 0. 5 nanometers ~ 1 mm. The naphthene carbon line-like structure includes at least ~ nanocarbon pipeline, and the nano-cracking line may be a non-twisted nanocarbon camp line or a twisted nano-barrier line. When the naphtha-transformed pipeline structure includes a plurality of nai light pipelines, the nanocarbon pipeline (four) structure may be composed of a bundle of a plurality of nanocarbon pipelines arranged in parallel or twisted by a plurality of na* carbon pipelines. Form one of the stranded structures. The non-twisted Nylon carbon pipeline may comprise a plurality of carbon nanotubes arranged along the length of the non-twisted nanowire. The non-twisted carbon nanotube wire can be obtained by treating the carbon nanotube film by organic solvent treatment. Specifically, the carbon nanotube film comprises a plurality of carbon nanotube segments, the plurality of carbon nanotube segments are connected end to end by Van der Waals force, and each of the carbon nanotube segments comprises a plurality of parallel and borrowed The carbon nanotube form number A0101 ° by the van der Valli is closely combined with 098132000. The carbon nanotube segment has any length, thickness, page 10/32 page 0982054897-0 201112783 Ο [0026] Uniformity and shape. 5纳米〜1毫米。 The non-twisted nano carbon line length is not limited, the diameter is 0. 5 nanometers ~ 1 mm. Specifically, the organic solvent may be immersed on the entire surface of the carbon nanotube film, and the plurality of nanoparticles parallel to each other in the carbon nanotube film may be formed under the action of the surface tension generated by the volatilization of the volatile organic solvent. The carbon tube is tightly bonded by the van der Waals force, thereby shrinking the carbon nanotube film into a non-twisted nano carbon line. The organic solvent is a volatile organic solvent such as ethanol, decyl alcohol, acetone, di-ethane or gas, and ethanol is used in this embodiment. The non-twisted nanocarbon line treated by the organic solvent has a smaller specific surface area and a lower viscosity than the carbon nanotube film which is not treated with the organic solvent. [0027] The twisted nanocarbon pipeline includes a plurality of carbon nanotubes arranged axially helically around the twisted carbon nanotube. The nanocarbon line can be obtained by mechanically twisting both ends of the carbon nanotube film in opposite directions. Further, the twisted nanocarbon line can be treated with a volatile organic solvent. Under the action of the surface tension generated by the volatilization of the volatile organic solvent, the adjacent nanocarbon tubes in the twisted nanocarbon pipeline after treatment are closely combined by van der Waals force to make the ratio of twisted nano carbon pipelines. The surface area is reduced, and the density and strength are increased. For the nano carbon pipeline and its preparation method, please refer to the patent filed by Fan Shoushan et al. on November 5, 2002, announced on November 21, 2008, the Republic of China patent with the announcement number 1303239; and December 16, 2005 The application for the day, announced on July 21, 2009, the announcement number is 1312337 of the Republic of China patent. In this embodiment, the carbon nanotube structure 24 is a twisted wire structure composed of three twisted nano carbon pipelines twisted to each other. 098132000 Form No. Α0101 Page 11 of 32 0982054897-0 [0028] 201112783 [〇〇29] It is understood that the carbon nanotube structure 24 may also include a carbon nanotube mix. Linear structure (not shown). The carbon nanotube mixed linear structure comprises a stranded structure composed of a parallel line of 'd, m carbon pipeline and other materials. The stranded structure is composed of a twisted line composed of a 'τ' meterite reverse pipeline and other materials. ~ Construction. Preferably, the line of other materials needs to have better elasticity, strength, and lesser density. The other material is a polymer, paper, fiber, cloth or metal. Referring to Fig. 5', a third embodiment of the present invention provides a centering piece 3, which has the same shape as the shape 0 of the centering piece 1〇 provided in the first embodiment. The centering piece 30 includes a base 32 and a carbon nanotube
、"構34，且該桊米碳管結構34設置於所述基體32之表面 ’开;成一雙層結構。 V _]本實施例與第一實施例提供之定心支片同之處在於 本實施例中之定心支片3〇為一雙層結構，且所述奈米 故管結構34包括複數個奈米碳管線狀結構342 。所述複數 個奈米碳管線狀結構342可平行設置、交叉設置或按一定 方式編織設置於所述基體32之一個表面。具體地，所述 y 複數個奈米;s反管線狀結構3 4 2可先平行設置、交叉設置或 按疋方式相互編織形成一平面結構，然後將該平面結 構藉由粘結劑或熱壓設置於所述基體32表面。所述複數 個奈米碳管線狀結構342也可直接平行設置、交又設置或 按一定方式編織設置於所述基體32表面，並藉由粘結劑 或熱壓方式與基體32緊密結合。本實施例中，所述奈米 碳官結構3 4包括複數個按一定方式編織成網狀結構之奈 米碳管線狀結構342。 098132000 表單編號A0101 第12頁/共32頁 0982054897-0 201112783 [0032] [0033] ◎ [0034] [0035] Ο 所述複數個奈米碳管線狀結構342也可與其他之線混合編 織形成所述奈米碳管結構34。具體地，所述複數個奈米 碳管線狀結構342可與其他之線平行設置、交叉設置或按 一定方式編織設置於所述基體32表面，並藉由粘結劑或 熱壓方式與基體32緊密結合° 可以理解，所述定心支片30亦可以包括兩個所述奈米碳 管結構34及一個基體32，且該基體32形成於該兩個奈米 碳管結構34之間。 請參見圖6，本發明第四實施例提供一定心支片40 ’該定 心支片40之形狀與所述定心支片1〇之形狀相同。所述定 心支片40包括一基體42、一奈米碳管結構44及一增強層 48，且該奈米碳管結構44設置於所述基體42及增強層48 之間》 本實施例與第一實施例提供之定心支片10不同之處在於 :本實施例中之定心支片40還包括一增:強層48。此外， 所述奈米碳管結構44不僅可以包括第一實施例提供之奈 米碳管膜’也可以包括第二實施;例中提供之奈米碳管線 狀結構。另外，所述奈米碳管結構44還可以包括至少一 個奈米碳管線狀結構及至少一個奈米碳管膜，且該至少 —個奈米碳管線狀結構可藉由粘結劑或熱壓之方式設置 於所述至少一層奈米碳管膜表面。本實施例中，所述奈 米碳管結構44為奈米碳管拉膜。 所述增強層48之材料為金屬、紙、聚合物、金剛石、碳 化蝴或陶瓷等材料。所述增強層48可藉由塗覆或沈積的 098132000 表單編號Α0101 第13頁/共32頁 0982054897-0 [0036] 201112783 方式設置於所述奈米碳營結構44表面。所述增強層48具 有使所述基體42及奈米碳管結構44緊密結合在—起之作 用優、地，所述增強層48之材料與基體Μ可較好地結 。或具有較好之相谷性，如，當所述基體Μ為金屬時， 該增強層48之㈣可優選為與職㈣相同之金屬，從 而使奈米碳管結構44與基⑽可更緊㈣結^具體地 ’本實施例中之定心支片4G之製備方法可包括：於所述 奈米碳管結構44表面塗覆或沈積—增強層48 ;以及將該 奈米碳管結構44鋪設於所述基體42之表面。 [0037] [0038] [0039] 請參見圖7 ’本發明第五實施例提供—定^支片5Q，該定 心支片50之形狀與所述定心支片1Q之形狀相同。所述定 心支片50包括兩個基體52和一個奈米碳管結構54，且所 述奈米碳管結構54設置於所述兩個基體52之間，形成一 三層結構。 本實施例與第一實施例提供之定心支片10不同之處在於 •所述定心支片5〇包括兩個基體52及^個奈米碳管結構 54。另外’所述奈米碳管琴捧54與:第四實施例提供之奈 米碳官結構4 4相同。 可以理解，所述定心支片5〇也可以包括複數個所述基體 52和複數個所述奈米碳管結構54依次交替設置形成三層 以上之結構，即所述奈米碳管結構54設置於相鄰兩個基 體52之間或所述基體5 2設置於所述相鄰之兩個奈米碳管 結構54之間。其中，所述奈米碳管結構54也包括第四實 施例中之奈米碳管結構44及增強層48。 098132000 表單編號A0101 第14頁/共32頁 0982054897-0 201112783 [0040] 請參見圖8及圖9，本發明進一步提供一應用 '^定心支片 io之揚聲器1〇〇。該揚聲器100包括一磁場系统12〇 支架110、一振動膜150、一音圈130、一立阳 u Λ 9圈骨架140及 上述定心支片10。所述磁場系統120固定於所述支架^ 。所述振動膜150之外邊緣固定於所述支架丨丨〇 ° 動膘150與音圈骨架140之一端相連。所述音 g国13 0設置 於所述音圈骨架140—端之外表面，且收容於所述磁 統120。所述定心支片10套設於所述音圈骨架14〇 = %系 ❹ [0041]所述磁場系統120包括一導磁下被κι、—導磁上板1 、一磁體123及一導磁芯柱124，所述磁體123相對之兩 端分別由同心設置之導磁下板121及導磁上板122所失持 。所述導磁上板122及磁體123岣為環狀結構，所述導磁 上板122及磁體123於所述磁場系統12〇中圍成一柱形空 間。所述導磁芯柱124與導磁下板121 一體成型，該導磁 芯柱124容置於所述柱形空s間並穿過所述，心孔113。該 導磁芯柱124與所述磁體123形成一環形磁^間隙125， 〇 該磁場間隙125用於容置所述音圈130。所述磁場間隙 125中具有-定磁感應密度之桓越場。該磁場系統12〇藉 由所述導磁上板122與所述支架11〇之底部112固定連接 ，其連接方法可以為螺紋連接、配合固定、粘結等等。 於本實施例中，該導磁上板丨22與底部112藉由螺紋連接 固定。 [0042]所述支架110為一端開口之圓臺形結構，其具有一空腔 111及一底部112。該空腔in内容設所述振動膜15〇以及 定心支片10。該底部112還具有—中心孔113，該中心孔 098132000 表單編號A0101 第15頁/共32頁 0982054897-0 201112783 11 3用於套設所述磁場系統120。該支架11 0藉由底部112 與磁場系統120相對固定。 [0043] 所述振動膜150為所述揚聲器100之發聲單元。所述振動 膜150之形狀不限，與其具體應用有關；如當所述振動膜 150應用於大型揚聲器100時，該振動膜150可為一空心 圓錐體結構；當所述振動膜150應用於微型揚聲器100時 •，該振動膜150可為一圓片狀結構。本實施例中，所述振 動膜150為一空心圓錐體結構；該振動膜150之頂端與所 述音圈骨架140藉由粘結之方式固定連接，其另一端之外 0 緣與所述支架110活動連接。 [0044] 所述音圈130設置於所述音圈骨架140並容置於所述磁場 間隙125。所述音圈130為揚聲器100之驅動單元，並於 所述磁場間隙125中上下運動。所述音圈130為較細之導 - 線於所述音圈骨架140繞制而形成，優選地，所述導線為 . 漆包線《當所述音圈130接收到音頻電信號時，該音圈 130產生隨音頻電流而變化之磁場，此變化之磁場與磁場 間隙125中之恒磁場之間發生相互作用，迫使該音圈130 〇 產生振動。 [0045] 所述音圈骨架140為中空柱形結構，其與所述導磁芯柱 124同心設置且間隔套設於所述導磁芯柱124上。所述音 圈骨架140與所述音圈130固定連接，且該音圈骨架140 之一端與振動膜150相連*從而當所述音圈骨架140隨音 圈130振動時，帶動所述振動膜150振動，從而使所述振 動膜150周圍之空氣運動，產生聲波。 098132000 表單編號Α0101 第16頁/共32頁 0982054897-0 201112783 [0046] Ο [0047] 〇 [0048] [0049] 所述定心支片10藉由其通孔16套設於所述音圈骨架140上 ，該定心支片10之外緣固定於所述支架110，該定心支片 10用於支持所述音圈骨架140，且對該音圈骨架140起橫 向限位之作用。由於所述定心支片10具有較大之彈性及 強度，且所述音圈130纏繞於所述音圈骨架140，所以該 音圈130可以於所述磁場間隙125中自由地上下移動而不 做橫向移動，即，該定心支片10對所述音圈130起限位之 作用，避免該音圈130與磁場系統120碰觸。另外，由於 所述定心支片10設置於所述磁場系統120與所述振動膜 150之間，可以防止灰塵進入該磁場系統120中之磁場間 隙 125。 所述定心支片10還影響揚聲器100中之振動膜150與音圈 130之共振頻率，具體地，定心支片10與振動膜150及音 圈130共同確定揚聲器100之共振頻率。該共振頻率之影 響因素除包括定心支片10之材料的特性外，還包括定心 支片10之幾何形狀。 可以理解，應用所述定心支片10之揚聲器100並不限於上 述結構，所述定心支片10也可應用於採用平面振動膜之 微型揚聲器中。另外，本發明實施例提供之定心支片20 、30、40及50亦可以應用到上述揚聲器100中。 本發明實施例提供之定心支片及使用該定心支片之揚聲 器具有以下優點：第一，由於奈米碳管具有優異之強度 及彈性，故由奈米碳管組成之奈米碳管結構之強度及彈 性較大，因此，奈米碳管結構與基體材料疊加形成之複 合多層結構，可以提高定心支片之彈性，增加定心支片 098132000 表單編號Α0101 第17頁/共32頁 0982054897-0 201112783 之強度，使其更有利於該定心支片對振動膜起到緩衝作 用、對音圈及音圈骨架起到限位作用，且使定心支片於 反復振動中不容易疲勞變形，進而不容易產生沿揚聲器 軸向之塌陷，使得使用該定心支片之揚聲器的使用壽命 增加，音質較好。第二'奈米碳管具有較小之密度，則 由奈米碳管組成之奈米碳管結構的密度也較小，本發明 實施例提供之定心支片於維持甚至提高定心支片之強度 及彈性的同時可以減小定心支片之質量，從而減小揚聲 器之質量。第三，由於奈米碳管具有良好之耐濕性及耐 燃性能，故由奈米碳管組成之奈米碳管結構也具有良好 之耐濕性及耐燃性能，所以本發明實施例提供之定心支 片也具有良好之耐濕性及耐燃性能。 [0050] [0051] [0052] [0053] [0054] 綜上所述，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】 圖1係本發明第一實施例提供之定心支片之結構示意圖。 圖2為圖1之定心支片沿11 - 11線之剖面圖。 圖3係本發明第一實施例提供之定心支片中採用之奈米碳 管拉膜之掃描電鏡照片。 圖4係本發明第二實施例提供之定心支片之結構示意圖。 圖5係本發明第三實施例提供之定心支片之分解圖。 098132000 表單編號A0101 第18頁/共32頁 0982054897-0 [0055] 201112783 [0〇56] 圖6係本發明第四實施例提供之定心支片之剖面圖。 [0〇57] 圖7係本發明第五實施例提供之定心支片之剖面圖。 [0058] 圖8係採用第一實施例提供之定心支片 之揚聲器之分解圖 [〇〇59]圖9為圖8所示之揚聲器之剖面圖。 【主要元件符號說明】 _]定心支片：10 ; 20 ; 30 ; 40 ; 50 〇 _1]基體：12 ; 22 ; 32 ; 42 ; 52 [0062] 奈米碳管結構：14 ; 24 ; 34 ; 44 [0063] 通孔：16」26 [0064] 奈米碳管線狀結構：342 [0065] 增強層：48 [0066]揚聲器：1〇〇 y Q [〇〇67]支架：110 [0068]空腔：111 [0069] 支架之底部：112 [0070]中心孔：113 [0071] 磁場系統：120 [0072] 導磁下板：121 [0073] 導磁上板：122 098132000 表單編號A0101 第19頁/共32頁 0982054897-0 201112783 [0074] 磁體：123 [0075] 導磁芯柱· 1 2 4 [0076] 磁場間隙：1 2 5 [0077] 音圈：130 [0078] 音圈骨架：14 0 [0079] 振動膜：150 098132000 表單編號A0101 第20頁/共32頁 Ο 0982054897-0And a structure 34, and the carbon nanotube structure 34 is disposed on the surface of the substrate 32 to form a double layer structure. V _] This embodiment is the same as the centering piece provided by the first embodiment in that the centering piece 3 本 in the embodiment is a two-layer structure, and the nano tube structure 34 includes a plurality of Nano carbon line structure 342. The plurality of nanocarbon line-like structures 342 may be disposed in parallel, crosswise or woven in a manner on one surface of the substrate 32. Specifically, the y plurality of nanometers; s reverse pipeline structure 342 may be first arranged in parallel, crosswise or woven to form a planar structure, and then the planar structure is bonded or hot pressed. It is disposed on the surface of the base 32. The plurality of nanocarbon line-like structures 342 may also be directly disposed in parallel, disposed, or woven in a certain manner on the surface of the substrate 32, and tightly bonded to the substrate 32 by adhesive or heat pressing. In this embodiment, the carbon carbon structure 34 includes a plurality of nanocarbon line-like structures 342 woven into a network structure in a certain manner. 098132000 Form No. A0101 Page 12 / Total 32 Page 0982054897-0 201112783 [0033] [0035] [0035] [0035] The plurality of nanocarbon line-like structures 342 may also be mixed with other lines to form a weaving formation. The carbon nanotube structure 34 is described. Specifically, the plurality of nanocarbon line-like structures 342 may be disposed in parallel with other lines, crosswise or woven on the surface of the base 32, and bonded to the substrate 32 by adhesive or heat pressing. Tight Bonding It will be understood that the centering support 30 may also include two of the carbon nanotube structures 34 and a base 32, and the base 32 is formed between the two carbon nanotube structures 34. Referring to Fig. 6, a fourth embodiment of the present invention provides a centering piece 40'. The centering piece 40 has the same shape as the centering piece 1'. The centering piece 40 includes a base body 42, a carbon nanotube structure 44, and a reinforcement layer 48, and the carbon nanotube structure 44 is disposed between the base body 42 and the reinforcement layer 48. The centering piece 10 provided in the first embodiment is different in that the centering piece 40 in this embodiment further includes a reinforcing layer 48. Further, the carbon nanotube structure 44 may include not only the carbon nanotube film provided in the first embodiment but also the second embodiment; the nanocarbon line structure provided in the example. In addition, the carbon nanotube structure 44 may further include at least one nanocarbon line structure and at least one carbon nanotube film, and the at least one nano carbon line structure may be bonded or hot pressed The method is disposed on the surface of the at least one layer of carbon nanotube film. In this embodiment, the carbon nanotube structure 44 is a carbon nanotube film. The material of the reinforcing layer 48 is metal, paper, polymer, diamond, carbonized butterfly or ceramic. The reinforcing layer 48 can be disposed on the surface of the nanocarbon camp structure 44 by coating or deposition of 098132000 Form No. 1010101, Page 13 of 32, 0982054897-0 [0036] 201112783. The reinforcing layer 48 has a function of tightly bonding the substrate 42 and the carbon nanotube structure 44, and the material of the reinforcing layer 48 and the substrate are well bonded. Or having a better phase grain property, for example, when the base material is a metal, the (4) of the reinforcing layer 48 may preferably be the same metal as the job (4), so that the carbon nanotube structure 44 and the base (10) can be tighter. (4) The method of preparing the centering piece 4G in the present embodiment may include: coating or depositing a reinforcing layer 48 on the surface of the carbon nanotube structure 44; and the carbon nanotube structure 44 Laid on the surface of the substrate 42. Referring to FIG. 7, a fifth embodiment of the present invention provides a fixed support piece 5Q having the same shape as that of the centering support piece 1Q. The centering support 50 includes two bases 52 and a carbon nanotube structure 54, and the carbon nanotube structure 54 is disposed between the two bases 52 to form a three-layer structure. This embodiment differs from the centering support 10 provided in the first embodiment in that the centering support 5 includes two bases 52 and a carbon nanotube structure 54. Further, the carbon nanotube holder 54 is the same as the carbon carbon structure 4 4 provided in the fourth embodiment. It can be understood that the centering piece 5〇 may also include a plurality of the base body 52 and a plurality of the carbon nanotube structures 54 alternately arranged to form a structure of three or more layers, that is, the carbon nanotube structure 54. It is disposed between two adjacent substrates 52 or the substrate 52 is disposed between the adjacent two carbon nanotube structures 54. Wherein, the carbon nanotube structure 54 also includes the carbon nanotube structure 44 and the reinforcing layer 48 in the fourth embodiment. 098132000 Form No. A0101 Page 14 of 32 0982054897-0 201112783 [0040] Referring to FIG. 8 and FIG. 9, the present invention further provides a speaker 1 for applying a centering piece io. The speaker 100 includes a magnetic field system 12 支架 bracket 110, a diaphragm 150, a voice coil 130, a vertical u 9-turn bobbin 140, and the above-described centering struts 10. The magnetic field system 120 is fixed to the bracket ^. The outer edge of the diaphragm 150 is fixed to the bracket 膘 150 and connected to one end of the voice coil bobbin 140. The sound country 110 is disposed on the outer surface of the voice coil bobbin 140-end and is received in the magnet 120. The centering support 10 is sleeved on the voice coil bobbin 14 〇 = % ❹ [0041] The magnetic field system 120 includes a magnetically viscous κ, a magnetically permeable upper plate 1, a magnet 123, and a guide The magnetic core column 124, the opposite ends of the magnet 123 are respectively deviated by the concentrically disposed magnetic lower plate 121 and the magnetic conductive upper plate 122. The magnetically permeable upper plate 122 and the magnet 123 are annular structures, and the magnetically permeable upper plate 122 and the magnet 123 enclose a cylindrical space in the magnetic field system 12A. The magnetic conductive core 124 is integrally formed with the magnetically permeable lower plate 121. The magnetic core 124 is received between the cylindrical spaces s and passes through the core hole 113. The magnetic core stud 124 forms a toroidal magnetic gap 125 with the magnet 123, and the magnetic field gap 125 is used to accommodate the voice coil 130. The magnetic field gap 125 has a 定-field of the constant magnetic induction density. The magnetic field system 12 is fixedly connected to the bottom portion 112 of the bracket 11 by the magnetic conductive upper plate 122, and the connection method may be screw connection, mating fixing, bonding, or the like. In the embodiment, the magnetic upper plate 22 and the bottom 112 are fixed by a screw connection. [0042] The bracket 110 is a truncated cone structure with one end open, and has a cavity 111 and a bottom portion 112. The cavity in is provided with the diaphragm 15 and the centering piece 10. The bottom portion 112 also has a central aperture 113, the central aperture 098132000 Form No. A0101 Page 15 of 32 0982054897-0 201112783 11 3 is used to nest the magnetic field system 120. The bracket 110 is fixed relative to the magnetic field system 120 by the bottom 112. [0043] The diaphragm 150 is a sounding unit of the speaker 100. The shape of the diaphragm 150 is not limited, and is related to its specific application; for example, when the diaphragm 150 is applied to the large speaker 100, the diaphragm 150 may be a hollow cone structure; when the diaphragm 150 is applied to the miniature In the case of the speaker 100, the diaphragm 150 may have a disk-like structure. In this embodiment, the vibrating membrane 150 is a hollow cone structure; the top end of the vibrating membrane 150 and the voice coil bobbin 140 are fixedly connected by bonding, and the other end of the vibrating membrane 150 is opposite to the bracket. 110 active connections. [0044] The voice coil 130 is disposed on the voice coil bobbin 140 and is received in the magnetic field gap 125. The voice coil 130 is a driving unit of the speaker 100 and moves up and down in the magnetic field gap 125. The voice coil 130 is formed by winding a thin guide wire on the voice coil bobbin 140. Preferably, the wire is an enameled wire. When the voice coil 130 receives an audio electrical signal, the voice coil 130 produces a magnetic field that varies with the audio current, and the changing magnetic field interacts with a constant magnetic field in the magnetic field gap 125, forcing the voice coil 130 to vibrate. [0045] The voice coil bobbin 140 is a hollow cylindrical structure that is concentrically disposed with the magnetic core stud 124 and spaced apart from the magnetic core stud 124. The voice coil bobbin 140 is fixedly connected to the voice coil 130, and one end of the voice coil bobbin 140 is connected to the vibrating membrane 150* to drive the vibrating membrane 150 when the voice coil bobbin 140 vibrates with the voice coil 130. The vibration is caused to move the air around the diaphragm 150 to generate sound waves. 098132000 Form No. 1010101 Page 16 of 32 0982054897-0 201112783 [0046] 定 [0048] [0049] The centering piece 10 is sleeved on the voice coil skeleton by its through hole 16 140, the outer edge of the centering piece 10 is fixed to the bracket 110, and the centering piece 10 is used to support the voice coil bobbin 140, and functions as a lateral limit on the voice coil bobbin 140. Since the centering support 10 has greater elasticity and strength, and the voice coil 130 is wound around the voice coil bobbin 140, the voice coil 130 can freely move up and down in the magnetic field gap 125 without The lateral movement is performed, that is, the centering piece 10 acts as a limit on the voice coil 130 to prevent the voice coil 130 from touching the magnetic field system 120. In addition, since the centering piece 10 is disposed between the magnetic field system 120 and the diaphragm 150, dust can be prevented from entering the magnetic field gap 125 in the magnetic field system 120. The centering support 10 also affects the resonant frequency of the diaphragm 150 and the voice coil 130 in the speaker 100. Specifically, the centering support 10 and the diaphragm 150 and the voice coil 130 together determine the resonant frequency of the speaker 100. The influence of the resonant frequency includes the geometry of the centering support 10 in addition to the properties of the material of the centering support 10. It is to be understood that the speaker 100 to which the centering piece 10 is applied is not limited to the above structure, and the centering piece 10 can also be applied to a microspeaker using a planar diaphragm. In addition, the centering pieces 20, 30, 40, and 50 provided by the embodiments of the present invention can also be applied to the speaker 100 described above. The centering support piece and the speaker using the same are provided with the following advantages: First, since the carbon nanotube has excellent strength and elasticity, the carbon nanotube structure composed of a carbon nanotube The strength and elasticity are large. Therefore, the composite multi-layer structure formed by superposing the carbon nanotube structure and the base material can improve the elasticity of the centering piece and increase the centering piece 098132000. Form No. 1010101 Page 17/32 Page 0982054897 The strength of -0 201112783 makes it more beneficial for the centering piece to cushion the diaphragm, limit the voice coil and the voice coil frame, and make the centering piece not easy to fatigue in repeated vibrations. The deformation, and thus the collapse of the axial direction of the speaker, is not easy, so that the life of the speaker using the centering piece is increased, and the sound quality is better. The density of the second carbon nanotube has a smaller density, and the density of the carbon nanotube structure composed of the carbon nanotubes is also small. The centering piece provided by the embodiment of the invention maintains or even improves the centering piece. The strength and elasticity can reduce the quality of the centering piece and reduce the quality of the speaker. Thirdly, since the carbon nanotubes have good moisture resistance and flame resistance, the carbon nanotube structure composed of the carbon nanotubes also has good moisture resistance and flame resistance, so the centering provided by the embodiment of the present invention The support sheet also has good moisture resistance and flame resistance. [0054] 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 to the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a centering piece provided by a first embodiment of the present invention. Figure 2 is a cross-sectional view of the centering piece of Figure 1 taken along line 11 - 11. Fig. 3 is a scanning electron micrograph of a carbon nanotube film taken in a centering piece provided by a first embodiment of the present invention. 4 is a schematic structural view of a centering piece provided by a second embodiment of the present invention. Figure 5 is an exploded view of a centering piece provided by a third embodiment of the present invention. 098132000 Form No. A0101 Page 18 of 32 0982054897-0 [0055] FIG. 6 is a cross-sectional view of a centering piece according to a fourth embodiment of the present invention. 7 is a cross-sectional view of a centering piece according to a fifth embodiment of the present invention. 8 is an exploded view of a speaker using the centering piece provided in the first embodiment. FIG. 9 is a cross-sectional view of the speaker shown in FIG. 8. [Main component symbol description] _] Centering support: 10; 20; 30; 40; 50 〇_1] Base: 12; 22; 32; 42; 52 [0062] Carbon nanotube structure: 14; 34 ; 44 [0063] Through hole: 16"26 [0064] Nano carbon line structure: 342 [0065] Reinforcement layer: 48 [0066] Speaker: 1〇〇y Q [〇〇67] Bracket: 110 [0068 Cavity: 111 [0069] Bottom of the bracket: 112 [0070] Center hole: 113 [0071] Magnetic field system: 120 [0072] Magnetic lower plate: 121 [0073] Magnetic upper plate: 122 098132000 Form No. A0101 19 pages/total 32 pages 0982054897-0 201112783 [0074] Magnet: 123 [0075] Magnetic core column · 1 2 4 [0076] Magnetic field gap: 1 2 5 [0077] Voice coil: 130 [0078] Voice coil skeleton: 14 0 [0079] Vibration film: 150 098132000 Form number A0101 Page 20 of 32 982 0982054897-0