543333 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（】） 技術背景： 本發明係一種喇叭之新穎結構及其製法，尤指一種將線圏固設於喇叭之框 架本體之中央，俾沿其周緣所設之鼓膜上之一磁性元件，在該線圈被激磁而發生 磁力線變化時，可令該磁性元件產生振動，並帶動鼓膜，發出聲音之喇叭結構及 其製法。 先前技藝： 按，喇ΒΛ被廣泛地使用於人們的日常生活中，已有近百年的歷史，舉凡車 站、禮堂等公共場所之廣播系統，汽車、機車等運輸工具之警音系統，及收音機、 電視機、音響等視聽設備之音效系統中，無不見其蹤跡，喇叭對現代社會之重要 性，由此可見一斑。 近年來，由於電子產業及材料科學的日益進步，各式電子產品隨著新型電 子零件及製造技術之開發成功，不僅大幅降低了電子產品之製造成本，有效改善 了電子產品之功能及品質，更因半導體製造技術之不斷進步，令各式小型化之半 導體元件，取代了傳統電子元件，使各式電子產品得以朝輕薄短小之市場趨勢及 需求，大步邁進，並大幅提昇了各式電子產品在使用上之便利性及普及性，如今 許多高性能低價位之電子產品，如：隨身聽及床頭音響…等，早已成一般人可輕 易負擔之消費產品。惟，在該等消費性電子產品中，以一般視聽設備及多媒體設 備爲例，其上用以控制音效之電子設備，雖不斷朝小型化、迷你化之方向發展， 其上用以輸出音效之喇叭，卻仍係延用傳統之喇叭結構，導致其體積無法大幅縮 小，且在其輸出音效之質與量上，均存在著難以突破之設計障礙。 按，傳統之喇叭10結構，參閱第1圖所示之立體剖面示意圖，主要包括一 鐵框11，該鐵框11 一側之中*位置係形成一凹陷之共振腔12，其周緣則貼覆有 一鼓膜13，該鼓膜13係朝該共振腔12之方向凹陷，且其中央位置係固定於一 2 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ^ ft --------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 543333 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（9) Μ 活動套14之一端，該活動套14之另端外緣則繞設有一組線圈15，而該活動套14 上位於該纖13通圈15銜接端間，則接設有一呈波職之阻尼膜16，該阻 尼膜16並沿徑向延伸，連接至該鐵框11位於該共振腔12內之適當位置處。該 鐵框11之另側設有一開口 17，該開口 17周緣固設有一固定座18，該固定座18 一端對應於該開口 17位置處設有一貫穿孔19，該開口 17及貫穿孔19之孔徑|合 可令該活動套14上繞設有線圈15之一端，穿入該固定座18中，該固定座18之 另端設有另一貫穿孔20，該另一貫穿孔20恰可令一 Τ形斷面之鐵心21之中心 柱211貫穿並固定其中，並洽可穿入該活動套14上繞設有線圈15之一端內徑， 該固定座18之周緣則固設有一永久磁鐵22 〇 在此種傳統之喇叭10結構中，參閱第2圖所示之剖面示意圖，當電流流經 該線圏15時，將令其激磁產生電磁效應，其所產生之磁力線，將與其周緣固設 之永久磁鐵22所產生之磁力線，形成相吸及相斥之作用，故隨著輸入該線圈15 之電流大小及方向之變化，繞設有線圈15之該活動套14將因此而產生上下之振 動，進而連動該鼓膜13，使喇叭10發出聲音。 查，此種傳統之喇叭10，將因下列問題，導致其體積無法大幅縮小，且造 成其輸出音效，在質與量上，形成難以突破之設計障礙： ⑴由於傳統喇叭10之固定座18、鐵心21及永久磁鐵22等零件之重量及 體積頗大’且係固定安裝該鐵框11上對應於該鼓膜13之另側，致在設計上始終 無法有效縮小其整體之尺寸大小，尤其是其厚度。 (2) 由於傳統喇叭10之活動套14上繞設有線圈15之一端，係穿入該固定 座18中，並位於該鐵心21之中心柱211及永久磁鐵22間之有限空隙內，故不 僅徒增組裝零件時之困難度’其空隙大小是否控制得宜，亦直接影響喇叭1〇製 作品質之良窳。 (3) 傳統喇叭10中固設於該固定座18底部之鐵心21，限制了該活動套14 -3 玉紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ^ ，----------------訂·-------- (請先閱讀背面之注意事項再填寫本頁) 543333 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明) 之振動行程，故當喇叭10處於高功率之低頻輸出時，該活動套14上繞設有線圏 15之一端將撞擊該鐵心21，令該活動套14發生變形，易造成輸出音效永久失真 之問題。 (4)傳統喇叭1〇之活動套14與該鼓膜13銜接之一端，一般係呈開放之開 口狀，惟，爲避免灰塵或異物落入該活動套14中，蓄積於該活動套14與鐵心21 之中心柱211間之空隙內，而影響到該活動套14之活動自由度，均必需於該活 動套14之開口端，加設一防_ 23，復參閱第1及2圖所示。 發明綱要： 有鑒於前述傳統喇叭在結構設計及製作技術上所發生之諸多缺失，發明人 乃硏究出一種喇叭之新穎結構及其製法，主要係於一喇Π八之框架本體之一側面， 沿其周緣固設一鼓膜，該框架本體與該鼓膜間形成一共振腔，且其中央位置固設 有一線圈，當該線圏被激磁，並於其中央位置發生磁力線變化時，該鼓膜上對應 於該線圈之中央位置所設之一磁性元件，將因該等磁力線之變化，形成吸斥鎌， 進而令該產生振動，發出聲音。 本發明之一目的，係在將該磁性元件直接或間接固定於該鼓膜之中央位置， 俾有效節省傳統喇叭上固定座、鐵心及永久磁鐵等零件所佔用之空間，大幅縮小 喇叭之厚度。 本發明之另一目的，係在將該線圈固定安裝於該喇叭之框架本體上對應於 該鼓膜之一側面之中央位置，俾該線圈被激磁時，可直接對該磁性元件，產生吸 斥效應，而帶動該鼓膜，出聲音，可有纖化喇叭之組裝結構及成本， 可有效增加該鼓膜之振幅行程，避免失真，並可因此大幅提昇喇D八之低音特性及 功率。 本發明之又一目的，係該磁性元件直接固定於該鼓膜之中央位置，或透過 ___ -4- 本紙張尺度適用中關家標準（CNS)A4規格（210 X 297公爱） ^ ·」 --------訂---------^ i^w— (請先閱讀背面之注意事項再填寫本頁) 543333 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明) 一活動套間接固定於該鼓膜之中央位置，致外界之灰塵或異物並無法經由該_ 之中央位置或該活動套之中心孔，進入該線圏與磁性元件間之空隙內，故無需加 設防塵膜，亦不致對該活動套之活動自由度造成影響。 附圖說明= 第1圖所示乃傳統喇叭之立體剖面示意圖； 第2圖所示乃傳統喇叭之剖面示意圖； 第3圖所示乃本發明喇叭之一較佳實施例之剖面示意圖； 第4圖所示乃本發明喇叭之另一較佳實施例之剖面示意圖； 第5圖所示乃本發明喇叭之又一較佳實施例之剖面示意圖。 圖號說明= 喇叭.............. •…·· 30 讎本體.......... .........31 纖.............. •…· 32 共振腔............. .........33 線圈.............. ......34 磁性元件.......... .........35 詳細說明： 本發明係一種喇叭之新穎結構及其製法，參閱第3、4及5圖所示之剖面示 意圖，主要係於一喇叭30之框架本體31之一側面，沿其周緣固設一鼓膜32， 該框架本體31與該鼓膜32間形成一共振腔33，且其中央位置固設有一線圈34， 當該線圈34被激磁，並於其中央位置發生磁力線變化時，該鼓膜32上對應於該 線圏34之中央位置所設之一磁性元件35，將因該等磁力線之變化，形成吸斥效 應，進而令該鼓膜32產生振動，發出聲音。 在本發明之一較佳實施例中，復參閱第3圖所示，該喇叭30主要包括一框 架本體31，該框架本體31 —側之中央位置形成一凹陷之共振腔33，其周緣則貼 -5- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ^ t.---------------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 543333 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（^ ) 覆固定有一鼓膜32，該鼓膜32係朝該共振腔33之方向延伸，且其中央位置固 設有一磁性元件35，該框架本體31位於該共振腔33之底部中央位置設有一貫 穿孔37，該貫穿孔37面向該共振腔33之一側周緣固設有一固定座38，該固定 座38中央位置亦設有一貫穿孔381，其孔徑約與該框架本體31之貫穿孔37相 當，而該等貫穿孔381、37之大小及設計位置，係足以令該磁性元件35貫穿並 移動於其中。 在該實施例中，當電流流經該線圈34時，將令其激磁，而於該固定座38 之貫穿孔381位置產生電磁效應，其所產生之磁力線，將與該磁性元件35所產 生之磁力線，形成相吸及相斥作用，故隨著輸入該線圏34之電流大小及方向之 變化，該磁性元件35將產生上下之振動，進而帶動該鼓膜32，令喇叭30發出 聲音。 在本發明之另一較佳實施例中，復參閱第4圖所示，該固定座38係固定於 該框架本體31上位於該貫穿孔37對應於該共振腔33之另側周緣位置，該固定 座38中央位置亦設有一貫穿孔381，其孔徑約與該_本體31之貫穿孔37相 當，而該等貫穿孔381、37之大小及設計位置，係足以令該磁性元件35貫穿並 移動於其中，俾當電流&經該另一較佳實施例之線圈34時，該線圈34將被激磁， 而於該固定座38之貫穿孔381位置產生電磁效應，且與該磁性元件35所產生之 磁力線，形成相吸及相斥作用，故隨著輸入該線圏34之電流大小及方向之變化， 該磁性元件35將產生上下之振動，進而帶動該鼓膜32，令喇叭30發出聲音。 在前述本發明之該二較佳實施例中，該磁性元件35可爲一高磁性之永久磁 鐵351，直接固定於該_ 32之中央位置，復參閱第5圖所示。在本發明之該 二實施例中，復參閱第3及4圖所示，該磁性元件35可由一活動套352及一高 磁性之永久磁鐵351組合而成，該活動套352之一端係固定於該鼓膜32之中央 位置，其另端則恰延伸至該等貫穿孔381、37內，並可活動於其中，以增加該磁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ----.L·----------------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 3 3 3 43 5 A7B7 五、發明說明（β) 性兀件35活動時之穩定性，該永久磁鐵351係嵌裝於該活動套352中央可感應 該線圏之電磁效應之任一位置。 在本發明之該二較佳實施例中，復參閱第3、4及5圖所示，爲增力隱鼓膜 32及該磁性元件35之阻尼效應，以校正其音質及音量，亦可於該磁性元件35 或該活動套352上鄰近於該鼓膜32之位置，接設一呈波浪狀之阻尼膜36，該阻 尼膜36並沿徑向延伸，連接至該框架本体31位於該共振腔33內之適當位置處。 由於本發明係直接或間接將該磁性元件35固定於該鼓膜32之中央位置， 故可有效節省傳統喇叭上固定座、鐵心及永久磁鐵等零件所佔用之空間，大幅縮 小喇叭之厚度。此外，由於本發明可直接將該線圏34固定安裝於喇叭30之框架 本體31之中央位置上，故當該線圈34被激磁時，可直接對該磁性元件35，產 生吸斥效應，進而帶動該鼓膜32，發出聲音，不僅可有效簡化喇叭之組裝結構 及成本，並可增加該鼓膜32之振幅行程，避免失真，大幅提昇喇叭之低音特性 及功率。另，由於本發明係將該磁性元件35直接固定於該鼓膜之中央位置，或 透過該活動套352間接固定於該鼓膜32之中央位置，故外界之灰塵或異物並無 法經由該讓32之中败置或該活動套352之中心孔，進入該線圏34與磁瓶 件351間之空隙內’故未加設防讓39，亦不致對該活動套352之活動自由度 造成影響。 以上所述，僅係本發明之較佳實施例，惟，本發明所主張之權利範圍，並 不局限於此，按凡熟悉該項技藝人士，依據本發明所揭露之技術內容，可輕易思 及之等效變化，均應屬不脫離本發明之保護範疇。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) --------訂---------線. 經濟部智慧財產局員工消費合作社印製543333 Printed by A7 B7, Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs 5. Description of the Invention () Technical background: The present invention is a novel structure and method of making a speaker, especially a wire coil fixed in the center of the frame body of the speaker A magnetic element on the tympanic membrane set along its periphery. When the coil is excited and changes the magnetic field line, it can cause the magnetic element to vibrate and drive the tympanic membrane to produce a horn structure and its manufacturing method. Previous skills: Press, La BΛ has been widely used in people's daily life, has a history of nearly 100 years, such as broadcasting systems in public places such as stations, auditoriums, alarm systems for vehicles such as cars, locomotives, and radios, The sound effects of audiovisual systems such as televisions and stereos are all visible. The importance of speakers to modern society is evident. In recent years, due to the increasing progress of the electronics industry and materials science, with the development of new electronic components and manufacturing technologies, various electronic products have not only greatly reduced the manufacturing costs of electronic products, but also effectively improved the functions and quality of electronic products. Due to the continuous advancement of semiconductor manufacturing technology, various types of miniaturized semiconductor components have replaced traditional electronic components, enabling various types of electronic products to make strides towards light, thin and short market trends and demands, and greatly improving various types of electronic products. In terms of convenience and popularity, many high-performance and low-cost electronic products, such as: Walkmans and Bedside Speakers, etc., have already become consumer products that ordinary people can easily afford. However, among these consumer electronic products, taking general audiovisual equipment and multimedia equipment as examples, the electronic equipment used to control sound effects has continued to develop in the direction of miniaturization and miniaturization. The speaker, however, still uses the traditional speaker structure, resulting in its volume not being able to be significantly reduced, and in terms of the quality and quantity of its output sound effects, there are design obstacles that are difficult to break through. According to the structure of the conventional horn 10, refer to the schematic diagram of the three-dimensional cross section shown in FIG. 1. It mainly includes an iron frame 11. The recessed cavity 12 is formed in the * position on one side of the iron frame 11, and the periphery is covered with There is a tympanic membrane 13 which is recessed in the direction of the resonant cavity 12 and its central position is fixed to a 2 paper size applicable to China National Standard (CNS) A4 (210 X 297 mm) ^ ft --- ----- Order --------- line (please read the notes on the back before filling out this page) 543333 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (9) Μ One end of the movable sleeve 14, a set of coils 15 is wound around the outer edge of the other end of the movable sleeve 14, and the movable sleeve 14 is located between the connecting ends of the fiber 13 through-loop 15 and a wave-shaped damping film is connected. 16. The damping film 16 extends in the radial direction and is connected to the iron frame 11 at a proper position in the resonance cavity 12. An opening 17 is provided on the other side of the iron frame 11, and a fixing seat 18 is fixed on the periphery of the opening 17. One end of the fixing seat 18 is provided with a through-hole 19 at a position corresponding to the opening 17. The opening 17 and the hole diameter of the through-hole 19 | Could make one end of the coil 15 be wound around the movable sleeve 14 and penetrate into the fixing base 18. The other end of the fixing base 18 is provided with another through hole 20, which can make a T-shape. The central post 211 of the cross section of the iron core 21 penetrates and fixes it, and can penetrate into the movable sleeve 14 and is wound around the inner diameter of one end of the coil 15. A permanent magnet 22 is fixed on the periphery of the fixed seat 18. In a conventional horn 10 structure, referring to the schematic cross-section diagram shown in FIG. 2, when a current flows through the line 15, it will cause its magnetization to generate an electromagnetic effect, and the magnetic lines of force generated by it will be permanently magnets 22 fixed to its periphery. The generated magnetic lines of force form the attraction and repulsion effect, so as the magnitude and direction of the current input to the coil 15 changes, the movable sleeve 14 around the coil 15 will thus generate up and down vibrations, and then link the The eardrum 13 makes the horn 10 sound . Check, this kind of traditional speaker 10 will not be able to reduce its volume significantly due to the following problems, and it will cause its output sound effect to form design obstacles that are difficult to break through in terms of quality and quantity: ⑴ Because of the fixed base 18 of the traditional speaker 10, The core 21 and the permanent magnet 22 are quite heavy in weight and volume, and are fixedly mounted on the other side of the iron frame 11 corresponding to the eardrum 13, so that the overall size cannot be effectively reduced, especially the design. thickness. (2) One end of the coil 15 is wound around the movable sleeve 14 of the traditional horn 10, which penetrates into the fixed seat 18 and is located in a limited gap between the central post 211 of the iron core 21 and the permanent magnet 22. Increasing the difficulty when assembling parts' whether the size of the gap is properly controlled also directly affects the quality of the speaker 10's production quality. (3) The iron core 21 fixed on the bottom of the fixed base 18 in the traditional horn 10 limits the movable sleeve 14 -3 The jade paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ^,- -------------- Order · -------- (Please read the notes on the back before filling out this page) 543333 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention) vibration, so when the horn 10 is at a high-power low-frequency output, one end of the movable sleeve 14 around the wire coil 15 will hit the iron core 21, deforming the movable sleeve 14 and easily causing output. The problem of permanent sound distortion. (4) One end of the movable sleeve 14 of the traditional speaker 10 and the eardrum 13 is generally an open opening. However, in order to prevent dust or foreign matter from falling into the movable sleeve 14, it is accumulated in the movable sleeve 14 and the iron core. In the gap between the center pillars 211 of 21, which affects the freedom of movement of the movable sleeve 14, a defense _23 must be added to the open end of the movable sleeve 14, refer to Figures 1 and 2 again. Summary of the invention: In view of the many shortcomings in the structural design and manufacturing technology of the aforementioned traditional horn, the inventor has developed a novel structure and manufacturing method of the horn, mainly on one side of the frame body of a frame. A tympanic membrane is fixed along its periphery, a resonance cavity is formed between the frame body and the tympanic membrane, and a coil is fixed at its central position. When the coil is excited and the magnetic field line changes at its central position, the tympanic membrane corresponds to A magnetic element set at the center of the coil will form a repulsive sickle due to the change of these magnetic lines of force, which in turn will cause vibration and sound. One object of the present invention is to directly or indirectly fix the magnetic element to the central position of the eardrum, thereby effectively saving the space occupied by parts such as the fixing seat, the iron core, and the permanent magnet on the conventional horn, and greatly reducing the thickness of the horn. Another object of the present invention is to fix the coil to a central position of a frame body of the horn corresponding to one side of the eardrum. When the coil is excited, it can directly generate a repulsive effect on the magnetic element. To drive the eardrum and produce sound, there can be a fibrillated horn assembly structure and cost, which can effectively increase the amplitude travel of the eardrum, avoid distortion, and can greatly improve the bass characteristics and power of La D-8. Another object of the present invention is that the magnetic element is directly fixed at the central position of the tympanic membrane, or through ___ -4- This paper size applies the Zhongguanjia Standard (CNS) A4 specification (210 X 297 public love) ^ · " -------- Order --------- ^ i ^ w— (Please read the notes on the back before filling out this page) 543333 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 5 Description of the invention) A movable sleeve is indirectly fixed to the central position of the tympanic membrane, so that dust or foreign objects from the outside cannot enter the gap between the coil and the magnetic element through the central position of the _ or the central hole of the movable sleeve. Therefore, there is no need to add a dustproof film, nor will it affect the freedom of movement of the movable sleeve. Brief description of the drawings = Figure 1 is a schematic cross-sectional view of a conventional horn; Figure 2 is a cross-sectional view of a traditional horn; Figure 3 is a cross-sectional view of a preferred embodiment of the horn of the present invention; FIG. 5 is a schematic cross-sectional view of another preferred embodiment of the speaker of the present invention; FIG. 5 is a schematic cross-sectional view of another preferred embodiment of the speaker of the present invention. Description of drawing number = horn ............... 30 雠 body ............... 31 fiber ... ........... • 32 Resonant Cavity ............. 33 Coil ... ..... ...... 34 magnetic element .................. 35 Detailed description: The present invention relates to a novel structure of a horn and a manufacturing method thereof. The schematic sectional views shown in FIGS. 3, 4 and 5 are mainly attached to one side of a frame body 31 of a horn 30, and a drum membrane 32 is fixed along its periphery. A resonance cavity 33 is formed between the frame body 31 and the drum membrane 32. And a coil 34 is fixed at the center position. When the coil 34 is excited and the magnetic field line changes at the center position, a magnetic element 35 is provided on the eardrum 32 corresponding to the center position of the coil 34. Due to the changes in these magnetic lines of force, a repulsive effect is formed, which further causes the eardrum 32 to vibrate and emit a sound. In a preferred embodiment of the present invention, as shown in FIG. 3, the horn 30 mainly includes a frame body 31, and a recessed resonant cavity 33 is formed at a central position on the side of the frame body 31. -5- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ^ t .--------------- Order --------- (Please read the precautions on the back before filling this page) 543333 A7 B7 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (^) A tympanic membrane 32 is fixed on the tympanic membrane 32 toward the resonance cavity 33 It extends in the direction, and a magnetic element 35 is fixed at the central position. The frame body 31 is located at the center of the bottom of the resonant cavity 33. A through hole 37 is fixed on the peripheral edge of one side of the through hole 37 facing the resonant cavity 33. A seat 38 is also provided with a through hole 381 at the center of the fixed seat 38, the hole diameter of which is approximately equivalent to the through hole 37 of the frame body 31, and the size and design position of the through holes 381 and 37 are sufficient for the magnetic element 35 penetrates and moves in it. In this embodiment, when a current flows through the coil 34, it will be excited, and an electromagnetic effect will be generated at the position of the through hole 381 of the fixed seat 38. The magnetic field lines generated by the coils will be the same as the magnetic field lines generated by the magnetic element 35. The attraction and repulsion effects are formed, so as the magnitude and direction of the current input to the coil 34 changes, the magnetic element 35 will generate up and down vibrations, which in turn drives the eardrum 32 and makes the horn 30 emit sound. In another preferred embodiment of the present invention, referring to FIG. 4 again, the fixing seat 38 is fixed on the frame body 31 and located at the peripheral edge of the through hole 37 corresponding to the resonance cavity 33. There is also a through hole 381 in the central position of the fixing seat 38, the diameter of which is approximately equivalent to the through hole 37 of the main body 31, and the size and design position of the through holes 381, 37 are sufficient to allow the magnetic element 35 to penetrate and move Among them, when the current & passes through the coil 34 of the another preferred embodiment, the coil 34 will be excited, and an electromagnetic effect will be generated at the position of the through hole 381 of the fixing seat 38, and the magnetic element 35 The generated magnetic lines of force form a phase attraction and repulsion effect, so as the magnitude and direction of the current input to the line 34 changes, the magnetic element 35 will generate up and down vibrations, which in turn will drive the eardrum 32 and make the horn 30 emit sound. In the aforementioned two preferred embodiments of the present invention, the magnetic element 35 may be a highly magnetic permanent magnet 351, which is directly fixed at the central position of the _32, as shown in FIG. 5 again. In the two embodiments of the present invention, referring to FIG. 3 and FIG. 4 again, the magnetic element 35 may be composed of a movable sleeve 352 and a highly magnetic permanent magnet 351. One end of the movable sleeve 352 is fixed to At the center of the tympanic membrane 32, the other end of the tympanic membrane 32 extends into the through-holes 381 and 37, and can be moved therein to increase the size of the magnetic paper. Applicable to China National Standard (CNS) A4 (210 X 297 mm) Li) ----. L · ---------------- Order --------- line (Please read the precautions on the back before filling this page) 3 3 3 43 5 A7B7 V. Description of the invention (β) The stability of the flexible element 35 during movement. The permanent magnet 351 is embedded in any position of the movable sleeve 352 where the electromagnetic effect of the coil can be sensed. In the two preferred embodiments of the present invention, referring to Figures 3, 4, and 5, the damping effect of the boosted hidden eardrum 32 and the magnetic element 35 is used to correct the sound quality and volume of the sound. A wave-shaped damping film 36 is connected to the magnetic element 35 or the movable sleeve 352 adjacent to the eardrum 32. The damping film 36 extends in the radial direction and is connected to the frame body 31 in the resonance cavity 33. In place. Since the present invention directly or indirectly fixes the magnetic element 35 to the center position of the eardrum 32, it can effectively save the space occupied by parts such as the fixed seat, the core and the permanent magnet on the conventional horn, and greatly reduce the thickness of the horn. In addition, since the wire coil 34 can be directly fixed to the central position of the frame body 31 of the horn 30 in the present invention, when the coil 34 is excited, it can directly generate a repulsive effect on the magnetic element 35, thereby driving The eardrum 32 emits sound, which can not only effectively simplify the assembly structure and cost of the speaker, but also increase the amplitude stroke of the eardrum 32, avoid distortion, and greatly improve the bass characteristics and power of the speaker. In addition, since the magnetic element 35 is directly fixed at the central position of the tympanic membrane or indirectly fixed at the central position of the tympanic membrane 32 through the movable sleeve 352, external dust or foreign matter cannot pass through the let 32. The failure or the central hole of the movable sleeve 352 enters the gap between the coil 34 and the magnetic bottle piece 351, so no concession 39 is added, and it will not affect the freedom of movement of the movable sleeve 352. The above are only the preferred embodiments of the present invention. However, the scope of the rights claimed by the present invention is not limited to this. According to the technical content disclosed by those skilled in the art, those skilled in the art can easily think about it. And equivalent changes should all belong to the protection scope of the present invention. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) Line. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs