201025293 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種發聲模組及使用該發聲模組之發聲裝置。 【先前技術】201025293 VI. Description of the Invention: [Technical Field] The present invention relates to a sound emitting module and a sound generating device using the same. [Prior Art]
傳統之發聲模組，如電動式、電磁式、靜電式、壓電式、電 離子式及氣動式等發聲裝置，大都採用一振膜作為發聲元件。為 使該振膜能夠振動發聲，該發聲模組補需設置—供該振膜振動 之二間’還需&置—結構複雜之振動驅動器驅動該振膜振動。因 此，該發聲模組之封裝結構比較複雜，結構不夠緊湊。 范守善等人於2GG8年1G月29日公開了 —種新之發聲元件， 該發聲元件為一熱發聲膜。請參見文獻疏，—He， Transparent Carbon Nanotube Thin Film Loudspeakers^ ^ Fan et al.,Conventional sounding modules, such as electric, electromagnetic, electrostatic, piezoelectric, ionic, and pneumatic, mostly use a diaphragm as the sounding component. In order to make the diaphragm vibrate and vocalize, the vocal module is required to be set up - for the two vibrations of the diaphragm, and the vibration vibration drive of the structure is required to drive the vibration of the diaphragm. Therefore, the packaging structure of the sounding module is relatively complicated, and the structure is not compact enough. Fan Shoushan and others published a new sounding component on 2G8, 1G, and the sounding component is a thermal sounding film. Please refer to the literature, He, Transparent Carbon Nanotube Thin Film Loudspeakers^ ^ Fan et al.,
Nano Utters，Vol.8 (12)，4539-4545 (2008)。該熱發聲膜利用熱聲原 t採用具有極大比表面觀極小單位面截容之奈米碳管膜所 製成。該奈米碳管膜通過至少二電極接收到—音頻訊號後，改變 於 周圍介質之密度而發聲波’且該聲波之強度與發聲頻率均能夠 人耳所能感知之範圍。 目前尚沒有對該熱發聲臈進行整體封裝之發聲模組， =毛麵直接暴露於環境中，受外界環境影響較大，容易受到 破壞而使雜料狀齡驗H 之 具有很大區別，如不需要振動=之= =:=1#：：=物嶋料熱發聲膜 【發明内容】 4 201025293 有雲於此_必要提供_種具有熱發聲膜之發聲模組及發聲 - 錢’婦聲·及發聲裝魏_熱發細進行封裝。 • -種發聲模組’其包括械設置之—基板及—蓋板。至少一 個第電極及至j/ -個第二電極設置於該基板上。一熱發聲膜錄 〇又並電連接於。亥至少一第一及第二電極上，所述基板及蓋板設置 於熱發聲膜相對之兩側。 種發聲模組’其包括相對設置之—基板及—蓋板。至少一 ❹個第電極设置於該基板上，至少一個第二電極設置於蓋板上。 熱發聲膜設置於該基板與蓋板之間且電連接於該至少一第一及 第二電極上。 ^ 一種發聲模組，其包括相對設置之一基板及一蓋板，一熱發 聲膜，複數個第一電極設置在並電性連接熱發聲膜的一侧，複數 個第二電極設置在並電性連接熱發聲膜的與第一電極相背的一 侧。 Φ 種發聲裝置’其包括一發聲模組及了固定框。該固定框將 5亥發聲模組夾持並固定於其間。該發聲模組包括相對設置之一基 板及一蓋板，至少一個第一電極設置於該基板上。至少一第二電 極没置於基板與蓋板二者之一。一熱發聲膜鋪設並電連接於該至 少一第一及第二電極上，所述基板及蓋板設置於熱發聲膜相對之 兩側。 與先前技術相比較，該發聲模組中之熱發聲膜由該基板與蓋 板封裝固定’如此形成一具熱發聲膜之完整之模組結構。該發聲 模組中之熱發聲膜相對之兩側分別由該基板及蓋板保護，使該熱 5 201025293 減少外界環境之影 發聲膜於基板與蓋板所形成之空間内工作， 響，從而延長該熱發聲膜之使用壽命。 【實施方式】 ，下將結合_詳細說明本發明實關之發聲 ，參關i，本發明第—實施例提供一發聲裝 二：。一發聲模組12’該咖u將該發聲模丄Nano Utters, Vol. 8 (12), 4539-4545 (2008). The thermoacoustic film is made of a thermogenic acoustic membrane using a carbon nanotube membrane having a surface area extremely small compared to the surface area. The carbon nanotube film receives an -audio signal through at least two electrodes, and changes the density of the surrounding medium to emit an acoustic wave', and the intensity and sounding frequency of the sound wave can be perceived by the human ear. At present, there is no sound module for the overall encapsulation of the thermoacoustic sputum, = the matte surface is directly exposed to the environment, and is greatly affected by the external environment, which is easily damaged and makes the miscellaneous material age H different. No need to vibrate = = =: = 1 #:: = material 热 热 【 【 【 【 2010 2010 2010 2010 2010 2010 2010 2010 2010 2010 2010 2010 2010 _ _ _ _ _ _ _ _ _ _ _ _ _ _ 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有 具有· And vocal equipment Wei _ hot hair fine for packaging. • - Sounding module 'which includes the mechanical setting - the substrate and the cover. At least one of the first electrodes and to the second of the second electrodes are disposed on the substrate. A hot sound film is recorded and electrically connected. The substrate and the cover plate are disposed on opposite sides of the thermoacoustic film on at least one of the first and second electrodes. The sounding module 'includes a substrate-and-cover plate that are disposed oppositely. At least one of the first electrodes is disposed on the substrate, and at least one of the second electrodes is disposed on the cover. The thermal vocal film is disposed between the substrate and the cover and electrically connected to the at least one first and second electrodes. A sounding module comprising a substrate and a cover plate disposed oppositely, a thermal sounding film, a plurality of first electrodes disposed on a side electrically connected to the thermal sounding film, and a plurality of second electrodes disposed in the parallel The side of the thermosonic membrane opposite the first electrode is connected. Φ kind of sounding device' includes a sounding module and a fixed frame. The fixing frame clamps and fixes the 5 megaphone module therebetween. The sounding module includes a substrate and a cover plate disposed opposite to each other, and at least one first electrode is disposed on the substrate. At least one of the second electrodes is not placed in one of the substrate and the cover. A thermal vocal film is laid and electrically connected to the at least one first and second electrodes, and the substrate and the cover plate are disposed on opposite sides of the whistling film. Compared with the prior art, the thermal sounding film in the sound emitting module is fixed by the substrate and the cover plate to form a complete module structure of the thermal sounding film. The opposite sides of the thermal sounding membrane in the sounding module are respectively protected by the substrate and the cover plate, so that the heat 5 201025293 reduces the external environment and the sound emitting film works in the space formed by the substrate and the cover plate, thereby prolonging The service life of the thermoacoustic film. [Embodiment] Hereinafter, the sound of the present invention will be described in detail, and the first embodiment of the present invention provides a sounding device. An audible module 12'
請參閱圖2’該固定框u包括位於發聲模組 =，該二框體加相互扣合將該發聲模組12夾置其間=二框 體110還可通過螺接、黏結、鉚接等方式連接。 —該二框體110具有相同之結構且關於發聲模㈣對稱設置， 每-框體110由首尾相連之四邊框圍成，該四邊框圍設成一開口 111該開口 m呈方形設置。每一邊框呈矩形板狀。每一邊框於 靠近開口 m位置處背向發聲模組u凹陷，以形成一承接部m 用以承接該發聲模㈣，每—承料112與其所於邊框形成臺階 狀。每兩相鄰邊框之連接處形成一凹σ 113 u防止與發聲模組12 之相應角落發生干涉。將框體加相對設置之二邊框㈣為ιι4、 115 ’該二邊框114、115朝向發聲驗12之頂面分別具有-散熱 槽1141 1151 ’用於對該發聲模组12散熱。二走線槽設置 於該散熱槽1Μ1兩側’每一走線槽碰靠近邊框m與其鄰接 邊框之連接位置處。該走_ m2用於方便該發雜組12與一 音頻訊號源（未示出）電連接。 明參閱圖3及圖4，該發聲模組12包括一基板121，一與該 基板121相對設置之蓋板122，設置於基板121與蓋板122之間之 6 201025293 多根第-電極123及多根第二電極124’以及鋪設並電連接於該第 -一、第二電極123、124上之—熱發聲膜125。二第一支撐體126 . 没置於基板121與蓋板122之間，以將蓋板122支撐設置於基板 121 上。 該基板m及蓋板m均為透明玻璃基板，當然不限於此， 忒基板121及蓋板122亦可不透明，例如：可做成金屬網狀結構。 该第-電極123及第二電極124為相互平行，數量相等且交 替設置之複數條形或棒狀電極，即每一第一電極123與每一第二 ❹電極似補設置。而複數第一電極123電連接且與一訊號源（I 示出）之一極(正極或負極)電連接，複數第二電極124電連接且與 該訊號源之另一極(負極或正極)電連接。 該第一電極123及第二電極124通過絲網印刷之方法形成於 該基板121上。採用絲網印刷方法能夠使該第一及第二電極123 , 124均勻分佈於該基板121靠近該蓋板122之表面，使該第一及第 一電極123，124之咼度相等，使該熱發聲膜125與每一個第一及 ❿第二電極123 ’ 124接觸。且還能夠使該第一及第二電極123，124 與*亥基板121結為一體，從而使該發聲模組12之結構更為簡單。 當然’該第一及第二電極123,124之形成方法並不限於絲網印刷， 還可通過鍍膜、刻蝕、與該基板121 一體成型等多種方法形成。 該熱發聲膜125鋪設並電連接於該第一電極123及第二電極 124上，且該熱發聲模125與該蓋板122接觸。該熱發聲膜125 為6亥發聲裝置100之發聲單元，當該熱發聲膜125通過該第一及 第一電極123 ’ 124接收到一音頻訊號後，該熱發聲膜125改變其 周圍之介質之密度而發出聲波。 201025293 在本實施例中，該熱發聲膜125包括至少一層奈米碳管膜， - 該奈米碳管膜中包括複數大致平行之奈米碳管沿同一方向擇優取 • 向排列。優選地，該奈米碳管膜包括複數大致平行之奈米碳管沿 其軸向從該至少第一電極123延伸至該第二電極124。當該熱發聲 膜125包括之奈米碳管膜之層數較少時，該熱發聲臈125具有較 好之透光度，如該熱發聲膜125只包括一層奈米碳管膜時，其透 光度為67%〜95%。當該熱發聲膜125包括多層奈米碳管膜時，其 ❹ 具有較好之機械強度與韌性。此時相鄰之奈米碳管膜中之奈米碳 管之排列方向形成一夾角β，〇。穿必>0。，相鄰兩層奈米碳管膜之間 通過凡得瓦爾力緊密結合。可以理解地，該熱發聲膜125並不局 限于奈米碳管膜，其還可為其他可利用熱聲原理發聲之薄膜。 該熱發聲膜125由基板121及蓋板122封裝後，形成發聲模 組12，便於組裝與生產。且封裝該熱發聲模膜125之結構非常簡 單，無需振動空間。另外，該熱發聲膜125之相對之兩侧分別具 有基板121及蓋板122’使該熱發聲膜125不直接暴露於外部環境 瘳中，從而避免該熱發聲膜125受到外部環境之衝擊而產生損壞。 該第一支撐體126為平行於該第一電極123或第二電極124 之絕緣條。該二第一支撐體126設置於該基板121及蓋板122之 相對兩端，用於支撐該蓋板122及控制該基板121與蓋板122之 間之間隙。具體地，該第一支撐體126之高度大於該第一電極123 或第二電極124之高度’小於該第一電極123或第二電極124之 而度與該熱發聲膜125之高度之和。從而使該熱發聲膜I%能夠 與該第一電極123及第二電極124能夠充分接觸之同時又不要受 到該第一電極123或第二電極124與蓋板122之過度擠壓。該第 8 201025293 支樓體126由聚四氟乙烯等具一定強度之絕緣材料所製成。 • 5亥基板121罪近蓋板122之表面還可設置複數與該第一電極 .123或第二電極124平行且高度相等之第二支撐體（未示出），使 β亥熱發聲膜125能夠儘罝保持於同一平面，從而與該第一電極123 及第二電極124更好地接觸。 組裝該發聲裝置100時，將該封裝好之發聲模組12裝入其中 個框體110，並使该基板121承載於該承接部ns ;通過二導線 分別與至少一第一電極123及至少一第二電極124電連接，該導 ❹線自該二走線槽1142伸出，用於接收該音頻訊號，當然，也可於 每一走線槽1142上設置一用於接收音頻訊號之導電片，該導電片 與導線電連接；裝上另一框體110 ’使兩個框體11〇相互配合將該 發聲模組12夾持其間。 凊參閱圖5，本發明第二實施例提供之發聲裝置2〇〇包括一固 定框21及一發聲模組22,該固定框21將該發聲模組22夾持並固 疋於其間。該發聲模組22包括一基板221，及一與該基板221相 φ 對設置之蓋板222 ’多根第一電極223及與該第一電極223等數量 之第二電極224 ’ 一熱發聲膜225及至少兩個第一支樓體226。該 第一及第二電極223，224設置於該基板221與蓋板222之間，該 熱發聲膜225鋪設並電連接於該第一及第二電極223，224上。該 第一支撐體226設置於該基板221及蓋板222之間，用以支樓該 蓋板222。 在本實施例中’該發聲裝置200之結構及功能與第一實施例 中之發聲裝置100之結構及功能基本相同，其主要區別在於，該 熱發聲膜225與該蓋板222相隔一定距離。該第一支撐體226之 201025293 高度大於該第一電極223或第二電極224之高度與該熱發聲膜225 . 之高度之和。 . 該熱發聲膜225與所蓋板222相隔一定距離，能夠增加該熱 發聲膜225與周圍介質之接觸面積，使該熱發聲膜225與周圍介 處之熱交換加快，從而提咼該發聲裝置2〇〇於同等功率下之發聲 強度。 請參閱圖6’本發明第三實施例提供之發聲裝置3〇〇包括一固 _ 疋框31及一發聲模組32’該固定框31將該發聲模組32夾持並固 定於其間。該發聲模組32包括一基板321，及一與該基板321相 對設置之蓋板322，多根第一電極323及與該第一電極323等數量 之第二電極324，一熱發聲膜325及至少兩個第一支撐體326。該 第一及第二電極323 ’ 324設置於該基板321與蓋板322之間，該 熱發聲臈325鋪設並電連接於該第一及第二電極323，324上。該 第支撐體326設置於該基板321及蓋板322之間，用以支撐該 蓋板322。 ® 在本實施例中，該發聲裝置300之結構及功能與第二實施例 中之發聲裝置200之結構及功能基本相同，其主要區別在於，該 蓋板322上設置有複數與該第一電極323及第二電極324之位置 對應之第三支撐體327。該第三支撐體327與該第一電極323或第 —電極324對齊設置’用以與該第一或第二電極323，324共同夾 置該熱發聲膜325。 該支撐體327可由任意材料，任意方法形成於該蓋板322上。 優選地，該支撐體327通過絲網印刷方法形成於該蓋板322上。 可理解，該第三支標體327之材料，形成工藝及排布與第一或第 201025293 一電極323 ’ 324相同，但不與该戒源電連接。於該蓋板322上 . 设置複數與該第一電極323及苐·一電極324位置對應之支樓體 327 ’能夠使該熱發聲膜325被限定於該第三支撐體327與該第一 及第二電極323之間，且使該熱發聲膜325與第一及第二電極 323，324接觸更緊密。 請參閱圖7 ’本發明第四實施例提供之發聲楚置4〇〇包括包括 一固定框41及一發聲模組42,該固定框41將該發聲模組42夾持 並固定於其間。該發聲模組42包括一基板421，及一與該基板421 相對設置之蓋板422’多根第一電極423及與該第一電極423等數 量之第二電極424 ’ 一熱發聲膜425及至少兩個第一支撐體426。 該第一及第二電極423 ’ 424設置於該基板321與蓋板422之間， 該熱發聲膜425鋪設並電連接於該第一及第二電極423，424上。 該第一支樓體426設置於該基板421及蓋板422之間，用以支撐· 該蓋板422。 在本實施例中’該發聲裝置400之結構及功能與第二實施例 ❹ 中之發聲裝置200之結構及功能基本相同，其主要區別在於，該 發聲模組400包括複數第一電極423及複數第二電極424，該第一 電極423及第二電極424分別設置於該基板421及蓋板422上， 且該第一電極423及第二電極424交錯設置於該熱發聲膜425之 相對之兩側。 該第一支撐體426之高度小於該第一電極423或第二電極424 之高度與該熱發聲膜425之高度之和，以使該熱發聲模425與每 —第一電極423及第二電極424接觸。 將該第一及第二電極423，424分別設置於基板421及蓋板422 11 201025293 ‘及第二電 基缝板422上只需設置一種電極，能簡化該 電極之汉计，於工藝實現上也比較簡單。且於給該第 極423，424點連接時不容易出現串線。 該發賴财之熱發聲職職板錢㈣制定，如此形 成-具熱發聲獻找之·結構。姆賴 對之兩側分獅職缺额_，使_發聲齡基 所形成之W辦，減少料财之雜，從峡長雜^ 膜之使用壽命。 〜、、知卓Please refer to FIG. 2 'the fixed frame u includes the sounding module=, the two frames are fastened to each other to sandwich the sounding module 12 therebetween. The second frame 110 can also be connected by screwing, bonding, riveting, etc. . The two frames 110 have the same structure and are arranged symmetrically with respect to the sounding mold (4). Each frame 110 is surrounded by four frames connected end to end. The four frames are surrounded by an opening 111. The opening m is square. Each frame has a rectangular plate shape. Each of the frames is recessed toward the sounding module u at a position close to the opening m to form a receiving portion m for receiving the sounding mold (4), and each of the receiving materials 112 forms a stepped shape with the frame. A concave σ 113 u is formed at the junction of each two adjacent frames to prevent interference with the corresponding corners of the sound module 12 . The frame is provided with two opposite frames (four) of ιι 4, 115 ′. The two frames 114 and 115 respectively have a heat dissipation groove 1141 1151 ′ toward the top surface of the vocalization test 12 for dissipating heat to the sounding module 12. The two wire troughs are disposed on both sides of the heat dissipating groove 1Μ1. Each of the wire troughs is adjacent to the connection position of the frame m and its adjacent frame. The path _ m2 is used to facilitate the electrical connection of the handpiece 12 to an audio source (not shown). Referring to FIG. 3 and FIG. 4 , the sound emitting module 12 includes a substrate 121 , a cover plate 122 disposed opposite the substrate 121 , and a plurality of first electrodes 123 disposed between the substrate 121 and the cover plate 122 . A plurality of second electrodes 124' and a thermoacoustic film 125 that is laid and electrically connected to the first and second electrodes 123, 124. The second support body 126 is not disposed between the substrate 121 and the cover plate 122 to support the cover plate 122 on the substrate 121. The substrate m and the cover m are both transparent glass substrates. Of course, the substrate m and the cover plate 122 may be opaque. For example, the metal mesh structure may be formed. The first electrode 123 and the second electrode 124 are parallel or equal in number and alternately arranged in a plurality of strip or rod electrodes, that is, each of the first electrodes 123 and each of the second electrodes are arranged to complement each other. The plurality of first electrodes 123 are electrically connected and electrically connected to one pole (positive or negative) of a signal source (I), and the plurality of second electrodes 124 are electrically connected and the other pole of the signal source (negative or positive) Electrical connection. The first electrode 123 and the second electrode 124 are formed on the substrate 121 by screen printing. The first and second electrodes 123, 124 can be evenly distributed on the surface of the substrate 121 near the cover plate 122 by the screen printing method, so that the first and first electrodes 123, 124 have the same degree of twist, so that the heat is made. The sounding film 125 is in contact with each of the first and second electrodes 123'124. Moreover, the first and second electrodes 123, 124 can be integrated with the substrate 12, thereby making the structure of the sounding module 12 simpler. Of course, the method of forming the first and second electrodes 123, 124 is not limited to screen printing, and may be formed by various methods such as plating, etching, and integral molding with the substrate 121. The thermal ac acoustic film 125 is laid and electrically connected to the first electrode 123 and the second electrode 124, and the thermal phonon mold 125 is in contact with the cover plate 122. The thermal sounding film 125 is a sounding unit of the 6th sounding device 100. After the thermal sounding film 125 receives an audio signal through the first and first electrodes 123'124, the thermal sounding film 125 changes the medium around it. Sound waves are emitted by density. 201025293 In the present embodiment, the thermoacoustic film 125 includes at least one layer of carbon nanotube film, and the carbon nanotube film includes a plurality of substantially parallel carbon nanotube tubes arranged in the same direction. Preferably, the carbon nanotube film includes a plurality of substantially parallel carbon nanotubes extending from the at least first electrode 123 to the second electrode 124 in an axial direction thereof. When the number of layers of the carbon nanotube film included in the thermoacoustic film 125 is small, the thermal phonon 125 has a good transmittance. For example, when the thermoacoustic film 125 includes only one layer of carbon nanotube film, The transmittance is 67% to 95%. When the thermoacoustic film 125 comprises a multilayered carbon nanotube film, the crucible has good mechanical strength and toughness. At this time, the arrangement direction of the carbon nanotubes in the adjacent carbon nanotube film forms an angle β, 〇. Wear must be > 0. The two adjacent layers of carbon nanotube membranes are tightly bonded by van der Waals force. It is to be understood that the thermoacoustic film 125 is not limited to a carbon nanotube film, but may be other films that can be made using the thermoacoustic principle. The thermoacoustic film 125 is encapsulated by the substrate 121 and the cover 122 to form the vocal module 12 for assembly and production. And the structure of the thermoacoustic film 125 is very simple, and no vibration space is required. In addition, the opposite sides of the thermal accommodating film 125 respectively have a substrate 121 and a cover plate 122 ′ so that the thermal ac acoustic film 125 is not directly exposed to the external environment ,, thereby preventing the thermal ac acoustic film 125 from being affected by the external environment. damage. The first support body 126 is an insulating strip parallel to the first electrode 123 or the second electrode 124. The two first supporting bodies 126 are disposed at opposite ends of the substrate 121 and the cover plate 122 for supporting the cover plate 122 and controlling the gap between the substrate 121 and the cover plate 122. Specifically, the height of the first support body 126 is greater than the height of the first electrode 123 or the second electrode 124 is smaller than the sum of the height of the first electrode 123 or the second electrode 124 and the height of the thermal sounding film 125. Therefore, the thermoacoustic film I% can be sufficiently contacted with the first electrode 123 and the second electrode 124 without being excessively pressed by the first electrode 123 or the second electrode 124 and the cap plate 122. The eighth 201025293 branch body 126 is made of a certain strength of insulating material such as polytetrafluoroethylene. The surface of the near cover plate 122 of the 5th substrate 121 may further be provided with a plurality of second supports (not shown) parallel to the first electrode .123 or the second electrode 124 and having the same height, so that the β-Hei sound absorbing film 125 It can be kept in the same plane as far as possible to make better contact with the first electrode 123 and the second electrode 124. When the sounding device 100 is assembled, the packaged sound module 12 is placed in one of the frames 110, and the substrate 121 is carried on the receiving portion ns; and the at least one first electrode 123 and at least one through the two wires The second electrode 124 is electrically connected to the second wire trough 1142 for receiving the audio signal. Of course, a conductive strip for receiving the audio signal may be disposed on each of the wire troughs 1142. The conductive sheet is electrically connected to the wire; and the other frame 110' is mounted to match the two frames 11 to sandwich the sound module 12 therebetween. Referring to FIG. 5, the sounding device 2 of the second embodiment of the present invention includes a fixing frame 21 and a sounding module 22, and the fixing frame 21 clamps and fixes the sounding module 22 therebetween. The sound emitting module 22 includes a substrate 221, and a cover plate 222' disposed adjacent to the substrate 221, a plurality of first electrodes 223, and a second electrode 224' equal to the first electrode 223. 225 and at least two first building blocks 226. The first and second electrodes 223 and 224 are disposed between the substrate 221 and the cover plate 222. The thermal acoustic film 225 is laid and electrically connected to the first and second electrodes 223 and 224. The first support body 226 is disposed between the substrate 221 and the cover plate 222 for supporting the cover plate 222. In the present embodiment, the structure and function of the sounding device 200 are substantially the same as those of the sounding device 100 of the first embodiment, and the main difference is that the thermal sounding film 225 is spaced apart from the cover plate 222 by a certain distance. The height of the 201025293 of the first support body 226 is greater than the sum of the height of the first electrode 223 or the second electrode 224 and the height of the thermal acoustic film 225 . The thermal sounding film 225 is spaced apart from the cover plate 222 by a certain distance, and the contact area of the thermal acoustic film 225 with the surrounding medium can be increased, and the heat exchange between the thermoacoustic film 225 and the surrounding medium is accelerated, thereby improving the sound generating device. 2 发 The sound intensity at the same power. Referring to Fig. 6', the sound emitting device 3 of the third embodiment of the present invention includes a solid frame 31 and a sound module 32'. The fixed frame 31 clamps and fixes the sound module 32 therebetween. The sound emitting module 32 includes a substrate 321 , a cover plate 322 disposed opposite the substrate 321 , a plurality of first electrodes 323 , a second electrode 324 equal to the first electrode 323 , a thermal sounding film 325 , and At least two first supports 326. The first and second electrodes 323' 324 are disposed between the substrate 321 and the cover plate 322. The heat generating cymbal 325 is laid and electrically connected to the first and second electrodes 323, 324. The first support body 326 is disposed between the substrate 321 and the cover plate 322 for supporting the cover plate 322. In the present embodiment, the structure and function of the sounding device 300 are substantially the same as those of the sounding device 200 in the second embodiment. The main difference is that the cover plate 322 is provided with a plurality of first electrodes. The third support body 327 corresponding to the position of the second electrode 324 is 323. The third support 327 is disposed in alignment with the first electrode 323 or the first electrode 324 for interposing the thermal acoustic film 325 with the first or second electrodes 323, 324. The support body 327 can be formed on the cover plate 322 by any material. Preferably, the support body 327 is formed on the cover plate 322 by a screen printing method. It can be understood that the material of the third sub-standard body 327 is formed and arranged in the same manner as the first or the 201025293 electrode 323' 324, but is not electrically connected to the source. The plurality of supporting structures 327 ′ corresponding to the positions of the first electrodes 323 and the first electrodes 324 are disposed on the cover plate 322 to enable the thermal sounding film 325 to be limited to the third supporting body 327 and the first Between the second electrodes 323, the thermoacoustic film 325 is brought into closer contact with the first and second electrodes 323, 324. Referring to FIG. 7 , the sounding device provided by the fourth embodiment of the present invention includes a fixing frame 41 and a sounding module 42. The fixing frame 41 clamps and fixes the sounding module 42 therebetween. The sound emitting module 42 includes a substrate 421, a plurality of first electrodes 423 disposed opposite to the substrate 421, and a second electrode 424' of the first electrode 423 and a thermal sounding film 425. At least two first supports 426. The first and second electrodes 423' 424 are disposed between the substrate 321 and the cover 422. The thermal acoustic film 425 is laid and electrically connected to the first and second electrodes 423, 424. The first building body 426 is disposed between the base plate 421 and the cover plate 422 for supporting the cover plate 422. In the present embodiment, the structure and function of the sounding device 400 are substantially the same as those of the sounding device 200 in the second embodiment. The main difference is that the sounding module 400 includes a plurality of first electrodes 423 and plural The second electrode 424, the first electrode 423 and the second electrode 424 are respectively disposed on the substrate 421 and the cover 422, and the first electrode 423 and the second electrode 424 are alternately disposed on the opposite of the thermal acoustic film 425. side. The height of the first support 426 is smaller than the height of the first electrode 423 or the second electrode 424 and the height of the thermal ac acoustic film 425, so that the thermal phonon 425 and each of the first electrode 423 and the second electrode 424 contacts. The first and second electrodes 423 and 424 are respectively disposed on the substrate 421 and the cover plate 422 11 201025293 ′ and the second electrical base plate 422, and only one electrode is needed, which can simplify the electrode of the electrode, and realize the process. It is also relatively simple. And the string is not easy to appear when the poles are connected at 423, 424 points. The enthusiasm for the slogan of the slogan (4) was formulated, so that it was formed with a hot voice. Mray has divided the lions on both sides of the _, making the _ vocal age base formed by the W, reducing the amount of miscellaneous wealth, from the life of the gorge. ~,, Zhizhuo
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《月& ’以上所述者僅為本發明之較佳實施例，自不能以此 限制本案之帽補麵。舉凡f知本雜狀人士援依本發明 之精或變化，皆應涵蓋於町帽專鄕圍内。 圖1係本發明第—實施例所提供之發聲裝置之組裝示意圖。 圖2係圖1之立體分解圖。 圖3係圖1中發聲模組之立體分解圖。 圖4係圖1沿IV-IV方向之剖視圖。 圖5係本發明第二實施例發聲裝置之剖視圖。 圖6係本發明第三實施例發聲裝置之剖視圖。 圖7係本發明第四實施例發聲裝置之剖視圖。 【主要元件符號說明】 發聲裝置 100、200、300、400 固定框 11、21、31、41 12 201025293In summary, the present invention has indeed met the requirements of the invention patent, and the patent application "Monthly &" has been described above as a preferred embodiment of the present invention, and it is not possible to limit the cap of the case. Anyone who knows the nature of this invention should be covered by the special features of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the assembly of a sound generating device according to a first embodiment of the present invention. 2 is an exploded perspective view of FIG. 1. 3 is an exploded perspective view of the sound module of FIG. 1. Figure 4 is a cross-sectional view taken along line IV-IV of Figure 1. Figure 5 is a cross-sectional view showing a sound emitting device of a second embodiment of the present invention. Figure 6 is a cross-sectional view showing a sounding device of a third embodiment of the present invention. Figure 7 is a cross-sectional view showing a sound generating device of a fourth embodiment of the present invention. [Description of main component symbols] Sounding device 100, 200, 300, 400 Fixed frame 11, 21, 31, 41 12 201025293
框體 110 開口 111 承接部 112 凹口 113 邊框 114 、 115 散熱槽 1141 、 1151 走線槽 1142 發聲模組 12、22、32 :、42 基板 121 、 221 、 321、 蓋板 122 、 222 、 322、 第一電極 123 、 223 、 323、 第二電極 124 、 224 ' 324、 熱發聲膜 125 ' 225 > 325、 第一支撐體 126 、 226 ' 326、 第三支撐體 327 421 422 423 424 425 426 13Frame 110 opening 111 receiving portion 112 notch 113 frame 114, 115 heat sink 1141, 1151 wire slot 1142 sound module 12, 22, 32:, 42 substrate 121, 221, 321 , cover plate 122, 222, 322, First electrodes 123, 223, 323, second electrodes 124, 224' 324, thermal sounding films 125' 225 > 325, first support bodies 126, 226' 326, third support bodies 327 421 422 423 424 425 426 13