TWM379297U - Micro speaker diaphragm and micro speaker - Google Patents

Micro speaker diaphragm and micro speaker Download PDF

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Publication number
TWM379297U
TWM379297U TW98211820U TW98211820U TWM379297U TW M379297 U TWM379297 U TW M379297U TW 98211820 U TW98211820 U TW 98211820U TW 98211820 U TW98211820 U TW 98211820U TW M379297 U TWM379297 U TW M379297U
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TW
Taiwan
Prior art keywords
vibrating
plate
polymer compound
microspeaker
rigid
Prior art date
Application number
TW98211820U
Other languages
Chinese (zh)
Inventor
Chang-Won Kim
Won-Taek Lee
Sung-Hwan Doh
Original Assignee
Bse Co Ltd
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Publication date
Application filed by Bse Co Ltd filed Critical Bse Co Ltd
Publication of TWM379297U publication Critical patent/TWM379297U/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04Plane diaphragms
    • H04R7/06Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025Diaphragms comprising polymeric materials

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Description

M3T9297 五、新型說明: 【新型所屬之技術領域】 本創作係關於微型揚聲器用振動板,具體而言,係關 於在振動板的中央部插入剛性部件的微型揚聲器用一體成 形振動〗反、其製作方法以及具備該振動板的微型揚聲器。 【先前技術】 通常,音頻再現設備可分爲如下類型:喇叭形揚聲器; 用於組件系統這類的Hi-Fi音頻系統中,並由覆蓋一定頻段 的音箱、中音揚聲器及鳴響器等構成的系統揚聲器;由一 個單元覆蓋所有頻段的一般揚聲器;具有如超小型攝錄 機、隨身聽、PDA、筆記本電腦、手機及IMT2000通信終 端等的超輕超薄型結構的微型揚聲器;用於移動通信用終 端等的接收器;一部分插入耳中的耳麥;以及僅接收特定 頻段的頻率的蜂鳴器。 另一方面,對於PDA、筆記本電腦及IMT2000通信終 端等而言,用戶在與裝置相隔一定距離的位置收聽再現的 聲音。這樣的便携設備迎合整體大小和重量的小型化趨 勢,縮小其大小,因此其採用的微型揚聲器也需要持續地 減小規模。 並且,這些微型揚聲器隨著無線網絡技術的發展和 IMT2000的構建,需要容易接受音樂文件,並要像劇場用 揚聲器那樣,需要高輸入/高輸出、及高音至低音的廣頻段 的再現。 3 M379297 第一圖是顯示出現有技術的微型揚聲器的一例的分解 立體圖,第二圖是顯示出第一圖振動板的剖視圖。參照第 一圖和第二圖說明現有的微型杨聲器的結構如下。 現有的微型揚聲器100包括:在中央形成有凹槽22的 磁軛20 ;與凹槽22内壁相隔一定間隔插入的磁鐵30 ;安 裝於磁鐵上的板32 ;與磁軛20外側連接而形成主體的架 10 ;借助架内側端支承的振動板50 ;附著在振動板的下表 面並夾在磁輛20和磁鐵30之間的間隙中而上下振動的音 圈40 ;以及保護板70,其在架的上端部覆蓋敞開的上部, 並形成有至少一個排音孔72。並且,在架1 〇的一側形成了 向音圈40提供外部信號的端子12。 在這種結構的微型揚聲器中,接收到外部信號的音圈 40與和磁鐵30接合而磁化的板32等相互作用,從而進行 上下振動,由於該振動’與音圈的振動板5〇振動,由此借 助與外部空氣之間的壓力來産生聲音。 另外’現有的振動板50的結構包括拱頂狀的中央部 50b和向中央部50b外側延伸而在其左右側形成爲環形的 邊緣部50a。 現有的振動板50通常是將單一材料的高分子化合物壓 接爲膜狀而形成的,由此形成同一材料和同一厚度。此時, 單一高分子化合物的振動板50根據邊緣部5〇a來决定振動 板50的諳振頻率(Fs),因此爲增强中央部5%的强度,將 其製作成拱狀。即,將振動板50的中央部5〇b形成爲拱頂 狀’從而增⑽構强度。但是這樣由單—麟成振動板5〇 M3T9297 時,産生聲音大幅失真的問題。 爲解决這種問題,提出了依據第三圖和第四圖所示的 步驟製作振動板50的方法:在高分子化合物膜111的中央 部111b層疊輕且高强度的剛性部件102來進行製作。此 時,爲了上述剛性部件102的耐化學性和耐濕性,在該剛 性部件102的上部及下部層疊膜片101、103。 即,如第三圖所示,將剛性部件102層疊在上部膜片 101和下部膜片103之間,將其黏接到高分子化合物膜111 的中央部111b,由此在不使振動板110的中央部111b變形 的情况下,也能增强耐化學性及耐濕性,同時增加强度。 另一方面,在上下部層疊於剛性部件102的上部膜片 101和下部膜片103採用厚度薄且輕的材料。例如,作爲上 部膜片101和下部膜片103的材料,採用如鋁片的金屬材 料或高分子化合物膜片。 第五圖是顯示出製作上述第四圖所示的振動板的工藝 的流程圖。 參照第五圖,分別製作出高分子化合物膜111和黏接 有膜片101、103的剛性部件102之後,黏接這兩個材料來 完成振動板110。 更具體而言,黏接多層高分子化合物膜(S51),成型 (S52),之後進行沖裁(blanking) (S53),由此製作出高分子 化合物膜111。 另外,將剛性部件102與上部膜片101黏接(S54),又 與下部膜片103黏接(S55)之後,對黏接有膜片101、103 5 M379297 的剛性部件m進行沖裁(咏)來㈣出剛性部件ι〇2。 對這樣製作出的高分子化合物膜U1和黏接有膜片 101、103的剛性部件102進行黏接後,進行乾燥(S57),由 此完成振動板110。 但是’如第四圖所示’對於這樣製作出的振動板110 而言,由於剛性部件102的侧面外露而存在無法得到理想 的耐化學性和耐濕性的問題。 並且,如第五圖所述,由於要經過高分子化合物膜的 製作、剛性部件的層疊及黏接等多次成型、沖裁、黏接過 程,因此有製作工藝複雜的缺點。 並且’如果黏接高分子化合物膜和剛性部件,則在對 其進行硬化或乾燥時需要額外的時間,因此存在製作時間 長的問題。 ^ 【新型内容】 本創作就是爲了解决上述問題而提出的,卽了微型 揚聲器用-體成形振動板、其製作方法以及具備該振動板 的微型揚聲器,其透過在形成振動板的高分子化合物膜的 中央《封·部件來製作出振動板,由此使耐化學性和 对濕性優異’製作工藝簡單。 根據本創作的實施例,目的在於提供如下的微型 =聲’成板、其製作方法以及具備該振動板的微 ❻h ’其在弟一振動部件的令央部層疊剛性部件,將 第二振動部㈣疊卿—振㈣絲㈣出縣板,由此 將剛性部件密封於振動板的中央部。 -體上述目的’本創作的實施例的微型揚聲器用 振動板=Ϊ,其特徵在於,該微型揚聲器用一體成形 中動部件’其由周邊的邊緣部和中間的 •中央成;剛性部件,其附著於該第一振動部件的中央 亚比重小於該第一振動部件的比重的剛性材料構 、及第—振動4件’其附著於該剛性部件所附著的第 、動邛件的上表面’對該剛性部件進行密封。 於,=微型揚聲器用一體成形振動板的特徵在 =振動部件形成爲高分子化合物膜狀 多個高分子化合物膜來形成。 、層疊 另/面’上述微型揚聲器用—體成形振動板的特徵 的-卿成。 自^子化合物、陶纽紙裝類中 另外,上额型揚聲㈣—體成形㈣板的特徵在 ^該第二振動部件形成爲高分子化合物膜狀,並且 層豐多個尚分子化合物膜來形成。 **M3T9297 V. New type of description: [Technical field of the new type] This is a vibration plate for a microspeaker. Specifically, it is a micro-speaker that is inserted into a rigid part in the center of a vibrating plate. The method and the microspeaker having the vibrating plate. [Prior Art] Generally, an audio reproduction device can be classified into the following types: a trumpet speaker; a Hi-Fi audio system for a component system, and is composed of a speaker covering a certain frequency band, a midrange speaker, and a ringer. System speaker; general speaker covering all frequency bands by one unit; ultra-light and ultra-thin micro-speaker with ultra-small camcorder, walkman, PDA, laptop, mobile phone and IMT2000 communication terminal; for mobile a receiver for a communication terminal or the like; a part of a headset inserted into the ear; and a buzzer that only receives the frequency of the specific frequency band. On the other hand, for PDAs, notebook computers, and IMT2000 communication terminals, etc., the user listens to the reproduced sound at a position separated from the device by a certain distance. Such portable devices cater to the miniaturization of the overall size and weight and reduce their size, so the miniature speakers used also need to be continuously reduced in size. Moreover, with the development of wireless network technology and the construction of IMT2000, these miniature speakers need to be easy to accept music files, and like high-input, high-output, and high-pitched to high-frequency reproduction of theaters like theater speakers. 3 M379297 The first figure is an exploded perspective view showing an example of a micro-speaker in which a technique appears, and the second figure is a cross-sectional view showing the vibration plate of the first figure. The structure of the conventional miniature poplar is explained as follows with reference to the first and second figures. The conventional microspeaker 100 includes a yoke 20 having a groove 22 formed in the center, a magnet 30 inserted at a certain interval from the inner wall of the groove 22, a plate 32 mounted on the magnet, and a main body connected to the outside of the yoke 20. a frame 10; a vibrating plate 50 supported by the inner end of the frame; a voice coil 40 attached to the lower surface of the vibrating plate and sandwiched between the magnetic wheel 20 and the magnet 30 to vibrate up and down; and a protective plate 70 in the frame The upper end portion covers the open upper portion and is formed with at least one sound discharge hole 72. Further, a terminal 12 for supplying an external signal to the voice coil 40 is formed on one side of the frame 1 . In the microspeaker having such a configuration, the voice coil 40 that receives the external signal interacts with the plate 32 that is magnetized by the magnet 30, and the like, thereby vibrating up and down. Since the vibration 'vibrates with the vibrating plate 5 of the voice coil, This produces sound by means of pressure with the outside air. Further, the structure of the conventional vibrating plate 50 includes a dome-shaped central portion 50b and an edge portion 50a extending toward the outer side of the central portion 50b and formed in a ring shape on the left and right sides thereof. The conventional vibrating plate 50 is usually formed by pressing a polymer compound of a single material into a film shape, thereby forming the same material and the same thickness. At this time, the vibration plate 50 of the single polymer compound determines the resonance frequency (Fs) of the vibrating plate 50 based on the edge portion 5〇a. Therefore, the strength of the central portion is increased by 5%, and this is formed into an arch shape. That is, the central portion 5〇b of the vibrating plate 50 is formed in a dome shape to increase the structural strength. However, when the single-liner vibrating plate 5〇 M3T9297 is used, the problem of large distortion of the sound is generated. In order to solve such a problem, a method of fabricating the vibrating plate 50 in accordance with the steps shown in the third and fourth figures has been proposed: a lightweight and high-strength rigid member 102 is laminated on the central portion 111b of the polymer compound film 111. At this time, the diaphragms 101 and 103 are laminated on the upper and lower portions of the rigid member 102 for the chemical resistance and moisture resistance of the rigid member 102 described above. That is, as shown in the third figure, the rigid member 102 is laminated between the upper diaphragm 101 and the lower diaphragm 103, and is bonded to the central portion 111b of the polymer compound film 111, whereby the vibrating plate 110 is not caused. In the case where the central portion 111b is deformed, chemical resistance and moisture resistance can be enhanced, and strength can be increased. On the other hand, the upper diaphragm 101 and the lower diaphragm 103 which are laminated on the upper and lower portions of the rigid member 102 are made of a material having a small thickness and a light weight. For example, as the material of the upper diaphragm 101 and the lower diaphragm 103, a metal material such as an aluminum sheet or a polymer compound film is used. Fig. 5 is a flow chart showing the process of producing the vibrating plate shown in the fourth figure above. Referring to Fig. 5, after the polymer compound film 111 and the rigid member 102 to which the films 101 and 103 are bonded are respectively formed, the two materials are adhered to complete the vibrating plate 110. More specifically, the multilayer polymer film (S51) is bonded, molded (S52), and then blanked (S53) to produce a polymer film 111. Further, after the rigid member 102 is bonded to the upper diaphragm 101 (S54) and adhered to the lower diaphragm 103 (S55), the rigid member m to which the diaphragm 101, 103 5 M379297 is bonded is punched (咏) Come (four) out of the rigid part ι〇2. The polymer compound film U1 thus produced and the rigid member 102 to which the films 101 and 103 are bonded are bonded, and then dried (S57), whereby the vibrating plate 110 is completed. However, as shown in Fig. 4, the vibrating plate 110 thus produced has a problem that the desired chemical resistance and moisture resistance cannot be obtained due to the exposed side surface of the rigid member 102. Further, as described in the fifth drawing, there are many disadvantages in that the manufacturing process is complicated because the molding process of the polymer compound film, lamination and adhesion of the rigid member, and the like are performed by multiple molding, punching, and bonding processes. Further, if the polymer compound film and the rigid member are bonded, extra time is required for hardening or drying the polymer compound film, and thus there is a problem that the production time is long. ^ [New content] This creation is to solve the above problems, and the micro-speaker-body-formed vibrating plate, the manufacturing method thereof, and the micro-speaker having the vibrating plate are transmitted through the polymer compound film forming the vibrating plate. The central part of the "sealing parts to make the vibrating plate, so that the chemical resistance and the wetness are excellent" is simple. According to an embodiment of the present invention, an object of the present invention is to provide a micro-acoustic slab, a manufacturing method thereof, and a micro ❻ h having the vibrating plate, wherein a rigid member is laminated on a central portion of the vibrating member, and the second vibrating portion is provided (4) The stacking-vibration (four) wire (4) exits the county plate, thereby sealing the rigid member to the central portion of the vibrating plate. The above-mentioned object of the present invention is a vibrating plate for a microspeaker according to an embodiment of the present invention, characterized in that the microspeaker is integrally formed with an intermediate member which is formed by a peripheral edge portion and an intermediate center portion; a rigid member thereof a rigid material structure having a central sub-specific gravity attached to the first vibrating member that is smaller than a specific gravity of the first vibrating member, and a fourth vibrating member 4 attached to an upper surface of the first and second movable members to which the rigid member is attached The rigid part is sealed. The characteristic of the integrally formed diaphragm of the microspeaker is formed by forming a plurality of polymer compound films in the form of a polymer compound film. 。 。 。 / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / In addition, the upper part type sounding (four)-body forming (four) board is characterized in that the second vibrating member is formed into a polymer compound film shape, and a plurality of molecular compound films are laminated. To form. **

:貝見上述目的’本創作的實施例的振 法,其特财於,該㈣«作方法包括:第-^ = 局分子化合物膜材料形成第一振動部件;第二步 述第-振動部件的中央部附著剛性部件,該剛性 重小於該第—振動部件的比重的剛性材料構成;第三1 驟,在_性料賴著的第—振動料的上表面= 分子化合物膜材料的第二振動部件,對_性部件進行S M379297 :及==’對接合後的該第-振動部件、剛性部 件及f-二動部件進行成型,製作出振動板。 A 了 λ現上述目的’本創作的實施例 其特徵在於’該微型揚聲器包括:在中 = 輛;與該凹槽的内壁相隔預定間隔安裝於該凹样的^磁 ==部的板;與該磁㈣側連接而形成主 内側端支承並以搭到該板上的方式連‘ 兮磁鐵圈’其附者在該振動板的下表面並插入到_ 磁耗之間的空間中而接合,且根據驅動信號進 及保護板,其在該架的上端部延伸而覆蓋 :板,:的i部,並形成有至少一個排音孔,並且,該振 ^板匕括u動部件’其由周邊的邊緣部和 ::構成;剛性部件’其附著於該第一振動部件的中央部, 及於該第一振動部件的比重的剛性材料構成;以 叙邮:Η牛’其附著於該剛性部件所附著的該第一振 動。卩件的上表面,對該剛性部件進行密封。 根據本創作,製作微型揚聲器用振動板 -丨 的膜的中央部插人比重小而輕且剛性的材料來進行密=板 ^此有提S作爲雜部件弱點的魏學性㈣濕 點。 Ά 一另外,無需像現有技術那樣,爲了製作振動板,製作 南分子化合物膜,層疊剛性部件進行黏接等多次成型、沖 2、黏接過程,而在高分子化合物膜的中央部黏接剛性部 件,再對高分子化合物膜進行密封,纽能约簡化製作工 8 M379297 藝,得到降低成本的效果。 並且,不像現有技術那樣,黏接高分子化合物膜和剛 性部件後,對其進行硬化或乾燥時,需要額外的時間,因 此得到縮短製作時間的效果。 【實施方式】 在本創作中,在插入到微型揚聲器中的振動板的中央 部黏接剛性部件,以增加其剛性,此時爲了保證所黏接的 剛性部件的耐化學性和耐濕性,將該剛性部件密封於用作 振動部件的高分子化合物膜之間,從而製作微型揚聲器振 動板。 以下,參照附圖,詳細說明本創作的實施例如下。 第六圖是顯示出本創作的微型揚聲器用一體成形振動 板的剖視圖。參照弟六圖’本創作的振動板12 0如下.在 高分子化合物膜狀的第一振動部件111的中央部111b黏接 剛性部件121,在黏接有該剛性部件121的第一振動部件 111的上部層疊高分子化合物膜狀的第二振動部件122,進 行黏接,從而製作出振動板,由此形成密封有該剛性部件 121的一體成形。 更具體而言,第一振動部件111和第二振動部件122 發揮振動板的固有功能,密封於上述兩個振動部件111、122 的中央部111b内部的剛性部件121插入到振動板120的中 央部,以增加强度。 另一方面,該第一振動部件111由中央部111b和邊緣 9 主·^成’該尹央部nib在振動板220的尹心例,主 、=阿曰’该邊緣部llla在振動板120的外側形成棋頂 狀’負責低音。 該第—振動部件U1可由高分子化合物膜構成。高分 刊匕^物材料可採用聚苯硫鱗(pps)、聚2,6_蔡二甲酸乙 -醇Mpen)、聚對笨二甲酸乙二g|(pET)、㈣酸亞胺 (PEI)、聚醯亞胺(ρι)等材料。 此時’邊緣部llla或中央部lnb的形狀可以進行多 =變化,向該第一振動部件⑴層疊多個高分子化合物膜 ^仃製作。即’可以將中央部⑽變形爲拼頂狀或平面 荨其他任意形狀來進行製作。 該剛性部件121較佳採用輕且剛性的材料,由於要按 =低比重的材料’因此主要採用發泡性材料如 採用高分子、陶究、木材等比重低的材料。 了乂 該第二振動部件122可與該第一振動部件⑴— =子化合物膜構成’且可以採用與該第一振動部件 =或不同的材料。另—方面,該第二振動部件m 該弟-振動部件U1黏接來整體形成振動板12〇,因此較ς =具有振動板12G的特性的材料。在該第二振動部件⑵ 、月况下’也可以層疊多個高分子化合物膜來進行製作 件二==由:剛性部件121插 進㈣封’因此可以確保耐化學性 即,該岡,J性部件121的側面透過振動部们u才 m因此解决第四圖所顯示現有剛性部件⑵_出現 M379297 的問題。 第七圖是顯示出本創作微型揚聲器用一體成形振動板 製作工藝的流程圖。參照第七圖,首先,黏接多層高分子 化合物祺(S7i),來形成第一振動部件in,然後,將剛性 部件121和多層高分子化合物膜黏接到第二振動部件122 上(S72)。 將該黏接的高分子化合物膜(S73)成型之後,進行沖裁 (S74) ’從而製作完成本創作的振動板。 第八圖是顯示出具備本創作實施例振動板微型揚聲器 的剖視圖。 本創作的微型揚聲器200包括:在中央形成有凹槽22 的磁輛20 ;與凹槽22的内壁相隔一定間隔而安裝於凹槽 22内的磁鐵3〇 ;安裝於磁鐵3〇上部的板32 ;與磁輛20 外側連接而形成主體的架10 ; —體成形振動板120,其借 助架1〇内侧端支承並以搭到板32上的方式連接,具有前 述的本創作結構;音圈4〇,其附著在振動板120的下表面 並夾在磁鐵30和凹槽22的内壁之間的間隙中而連接,且 根據外部信號進行上下振動;以及保護板70,其在架10 的上端部延伸而覆蓋振動板120的上部,並形成有至少一 個排音孔72。 在具有這種結構的微型揚聲器中,接收到外部信號的 音圈40與和磁鐵3〇接合而磁化的板32等相互作用,從而 上下振動’由於該振動,與音圈4〇的振動板12〇振動,由 此借助與外部空氣之間的壓力來産生聲音。 M379297 另-方面,本創作的微型揚聲器從應用了本創作的振 動板這一點上區別於現有的微型揚聲器結構,在具備了 體成形振動板的前提下,可以擴展爲财類型的 如上所述,在應用本創作的振動板時,相比 構,具有如下優點。 第-,在振動板的膜的令央部插入輕且剛性的材料來. 進行密封’由此可以提高作爲剛性部件弱點的耗學性和_ 耐濕性。 第二,無需多次成型、沖裁、黏接過程,而在高分子 化合物膜的中央部黏接剛性部件,再密封高分子化合物 膜,由此簡化製作工藝’可以節省成本。 第二,將南分子化合物膜和剛性部件黏接後,對其進 行硬化或乾燥時,無需額外的時間,因此可以縮短製作時 間。 並且,本創作的較佳實施例是爲例示目的而揭示的, 只要是本領域技術人員就可以理解,在本創作的思想和範 圍内,可以進行多種修改、變更、添加等,這些修改及變 更等應理解爲屬於本創作的保護範圍。 【圖式簡單說明】 第一圖是顯示出現有技術微型揚聲器一例的分解立體 圖。 第二圖是顯示出第一圖振動板的剖視圖。 12 M379297 第三圖是顯示出附著於現有技術振動板剛性部件的剖視 圖。 第四圖是顯示出附著有第三圖剛性部件振動板的剖視 圖。 第五圖是顯示出現有技術振動板製作工藝的流程圖。 第六圖是顯示出本創作微型揚聲器用一體成形振動板的 剖視圖。 第七圖是顯示出本創作微型揚聲器用一體成形振動板製 作工藝的流程圖。 第八圖是顯示出具備本創作實施例振動板微型揚聲器的 剖視圖。 【主要元件符號說明】 10 架 12 端子 20 磁輛 22 凹槽 30 磁鐵 32 板 40 音圈 50 振動板 50a 邊緣部 50b 中央部 70 保護板 13 M379297 72 排音孔 100 微型揚聲器 101 上部膜片 102 剛性部件 103 下部膜片 111 第一振動部件 111a 邊緣部 111b 中央部 110 振動板 120 振動板 121 剛性部件 122 第二振動部件 200 微型揚聲器:Before seeing the above object, the vibration method of the embodiment of the present invention has its special wealth, and the method includes: -^ = the molecular compound film material forms the first vibrating component; the second step describes the vibrating component The central portion is attached with a rigid member, the rigid material having a rigidity smaller than the specific gravity of the first vibrating member; and the third step, the upper surface of the first vibrating material on the _ material is the second member of the molecular compound film material The vibrating member is subjected to S M379297 : and == 'the first vibrating member, the rigid member, and the f-two-moving member after the joining, to produce a vibrating plate. A λ is now the object of the present invention. The embodiment of the present invention is characterized in that the micro-speaker comprises: a medium-sized vehicle; a plate mounted to the inner wall of the groove at a predetermined interval and mounted on the magnetic portion of the concave sample; The magnetic (four) side is connected to form a main inner end support and is connected to the plate so as to be attached to the lower surface of the vibrating plate and inserted into the space between the magnetic losses. And according to the driving signal, the protective plate is extended at the upper end of the frame to cover: the i-portion of the plate, and is formed with at least one sound-discharging hole, and the vibration plate includes the u-moving component a peripheral edge portion and a: a rigid member 'attached to a central portion of the first vibrating member and a rigid material having a specific gravity to the first vibrating member; and the yak is attached to the rigidity The first vibration to which the component is attached. The upper surface of the element seals the rigid part. According to this creation, the center of the diaphragm for the micro-speaker - 丨 is inserted into the center of the film with a small specific gravity and light rigidity to make the density = plate. This is the Wei Xue (4) wet point of the weak point of the miscellaneous parts. Ά In addition, it is not necessary to produce a south molecular compound film in order to produce a vibrating plate as in the prior art, and to laminate a rigid member to perform multiple bonding, punching, and bonding processes, and to bond at the center of the polymer compound film. The rigid part is sealed with the polymer compound film, and Newcomer simplifies the production of M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M Further, unlike the prior art, when the polymer compound film and the rigid member are bonded and then cured or dried, additional time is required, so that the effect of shortening the production time is obtained. [Embodiment] In the present invention, a rigid member is bonded to a central portion of a vibrating plate inserted into a microspeaker to increase rigidity thereof, and in order to ensure chemical resistance and moisture resistance of the adhered rigid member, The rigid member was sealed between the polymer compound films serving as the vibrating members to fabricate a microspeaker vibrating plate. Hereinafter, the implementation of the present creation will be described in detail with reference to the accompanying drawings. Fig. 6 is a cross-sectional view showing the integrally formed vibrating plate for a microspeaker of the present invention. The vibrating plate 120 of the present invention is as follows. The rigid member 121 is bonded to the central portion 111b of the first vibrating member 111 of the polymer compound film, and the first vibrating member 111 to which the rigid member 121 is bonded is attached. The second vibrating member 122 in which the polymer compound film is laminated on the upper portion is bonded to each other to form a vibrating plate, thereby integrally forming the rigid member 121 sealed therein. More specifically, the first vibrating member 111 and the second vibrating member 122 function as a vibrating plate, and the rigid member 121 sealed inside the central portion 111b of the two vibrating members 111 and 122 is inserted into the central portion of the vibrating plate 120. To increase strength. On the other hand, the first vibrating member 111 is formed by the center portion 111b and the edge portion 9 in the case of the Yinyang portion nib in the vibrating plate 220, and the main portion, the rim portion 11la, forms a chess on the outer side of the vibrating plate 120. The top shape is responsible for the bass. The first vibrating member U1 may be composed of a polymer compound film. High-grade materials can be used as polyphenylene sulfide scale (pps), poly 2,6_cacodicarboxylic acid ethyl alcohol (Mpen), poly(p-diethylammonium dicarboxylate) (pET), (tetra) acid imide (PEI) ), polyimine (ρι) and other materials. At this time, the shape of the edge portion 111a or the central portion lnb can be changed to a large amount, and a plurality of polymer compound films are laminated on the first vibrating member (1). That is, the central portion (10) can be deformed into a top shape or a flat shape and any other shape. The rigid member 121 is preferably made of a light and rigid material, and is mainly made of a foamable material such as a polymer having a low specific gravity such as a polymer, a ceramic, or a wood because of a material having a low specific gravity. The second vibrating member 122 may be formed with the first vibrating member (1) = a sub-compound film and may be made of a material different from or different from the first vibrating member. On the other hand, the second vibrating member m is bonded to the vibrating plate 12A as a whole, so that it is a material having the characteristics of the vibrating plate 12G. In the second vibrating member (2), in the case of a month, a plurality of polymer compound films may be laminated to produce the article 2 == the rigid member 121 is inserted into the (four) seal. Therefore, chemical resistance can be ensured. The side surface of the member 121 is transmitted through the vibrating portion so that the problem of the existing rigid member (2)_ appearing in the fourth figure is M379297. The seventh figure is a flow chart showing the manufacturing process of the integrally formed vibrating plate for the micro-speaker of the present invention. Referring to the seventh drawing, first, the multilayer polymer compound bismuth (S7i) is bonded to form the first vibrating member in, and then the rigid member 121 and the multilayer polymer compound film are bonded to the second vibrating member 122 (S72). . After the bonded polymer compound film (S73) was molded, punching (S74)' was performed to prepare a vibrating plate which completed the creation. Fig. 8 is a cross-sectional view showing the vibrating plate microspeaker of the present embodiment. The microspeaker 200 of the present invention comprises: a magnetic vehicle 20 having a recess 22 formed in the center; a magnet 3〇 mounted in the recess 22 at a certain interval from the inner wall of the recess 22; and a plate 32 mounted on the upper portion of the magnet 3 a frame 10 which is connected to the outer side of the magnetic vehicle 20 to form a main body; a body-formed vibration plate 120 which is supported by the inner end of the frame 1 and connected to the plate 32, and has the aforementioned creation structure; the voice coil 4 That is, it is attached to the lower surface of the vibrating plate 120 and is sandwiched by a gap between the magnet 30 and the inner wall of the recess 22, and is vibrated up and down according to an external signal; and a protective plate 70 at the upper end of the frame 10 The upper portion of the vibrating plate 120 is extended to cover and formed with at least one sound emitting hole 72. In the microspeaker having such a structure, the voice coil 40 that receives the external signal interacts with the plate 32 that is magnetized by the magnet 3〇, and the like, thereby vibrating up and down 'because of the vibration, the vibrating plate 12 with the voice coil 4〇 The cymbal vibrates, thereby generating sound by means of pressure with the outside air. M379297 On the other hand, the micro-speaker of this creation is different from the existing micro-speaker structure in that the vibration plate of the present invention is applied, and can be expanded to the financial type as described above, provided that the body-shaped vibration plate is provided. When the vibrating plate of the present invention is applied, the following advantages are obtained. First, a light and rigid material is inserted into the central portion of the diaphragm of the vibrating plate. Sealing is performed, whereby the evanuability and moisture resistance as a weak point of the rigid member can be improved. Second, it is possible to save cost by simplifying the manufacturing process by attaching a rigid member to the central portion of the polymer compound film without sealing, punching, and bonding processes. Second, when the film of the south molecular compound and the rigid member are bonded, it is hardened or dried, and no additional time is required, so that the production time can be shortened. Further, the preferred embodiments of the present invention are disclosed for illustrative purposes, and as long as those skilled in the art can understand that various modifications, changes, additions, and the like can be made within the scope and spirit of the present invention. Etc. should be understood as belonging to the scope of protection of this creation. [Simple description of the drawing] The first figure is an exploded perspective view showing an example of a technical microspeaker. The second figure is a cross-sectional view showing the vibration plate of the first figure. 12 M379297 The third figure is a cross-sectional view showing the rigid parts attached to the prior art vibrating plate. The fourth figure is a cross-sectional view showing the vibration plate to which the rigid member of the third figure is attached. The fifth figure is a flow chart showing the process of making a technical vibrating plate. Fig. 6 is a cross-sectional view showing the integrally formed diaphragm of the present microspeaker. The seventh figure is a flow chart showing the manufacturing process of the integrally formed vibrating plate for the micro-speaker of the present invention. Fig. 8 is a cross-sectional view showing the vibrating plate microspeaker of the present embodiment. [Main component symbol description] 10 12-terminal 20 magnetic vehicle 22 Groove 30 Magnet 32 Plate 40 Voice coil 50 Vibration plate 50a Edge portion 50b Center portion 70 Protection plate 13 M379297 72 Sound hole 100 Micro speaker 101 Upper diaphragm 102 Rigid Component 103 Lower diaphragm 111 First vibrating member 111a Edge portion 111b Center portion 110 Vibrating plate 120 Vibrating plate 121 Rigid member 122 Second vibrating member 200 Micro speaker

Claims (1)

M379297 六、申請專利範圍: 1. 一種微型揚聲器用一體成形振動板,其特徵在於,該微型揚 聲器用一體成形振動板包括: 第一振動部件(111),該第一振動部件由周邊的邊緣部 (111a)和中間的中央部(111b)構成; 剛性部件(121),該剛性部件附著於該第一振動部件(111) 的中央部(111b),並由比重小於該第一振動部件的比重的剛 性材料構成,以及 ^ 第二振動部件(122),該第二振動部件附著於該剛性部件 (121)所附著的該第一振動部件(111)的上表面,對該剛性部 件(121)進行密封。 2. 如申請專利範圍第1項所述的微型揚聲器用一體成形振動 板,其特徵在於,該第一振動部件形成爲高分子化合物膜狀。 3. 如申請專利範圍第1項所述的微型揚聲器用一體成形振動 板,其特徵在於,該第一振動部件透過層疊爹個高分子化合 φ· 物膜來形成。 -4.如申請專利範圍第1項所述的微型揚聲器用一體成形振動 板,其特徵在於,該剛性部件由選自高分子化合物及陶瓷中 的一種形成。 5. 如申請專利範圍第1項所述的微型揚聲器用一體成形振動 板,其特徵在於,該第二振動部件形成爲高分子化合物膜狀。 6. 如申請專利範圍第1項所述的微型揚聲器用一體成形振動 板,其特徵在於,該第二振動部件透過層疊多個高分子化合 物膜來形成。 15 M379297 7. -種微型揚聲器,其特徵在於,該微型揚聲器包括: 在中央形成有凹槽(22)的磁軛(2〇); 與該凹槽(22)的内壁相隔預定間隔而安裳於該凹槽(22) 内的磁鐵(30); 安裝於該磁鐵(30)的上部的板(32); 與該磁軛(20)的外側連接而形成主體的架(1〇); 振動板(120),該振動板借助該架(1〇)的内側端支承並以 搭到該板(32)上的方式連接; 曰圈(40),該音圈附著在該振動板(12〇)的下表面並插入 到該磁鐵(30)和該磁軛(20)之間的空間而進行連接,且根據 驅動信號進行上下振動;以及 保護板(70),該保護板在該架(10)的上端部延伸而覆蓋 該振動板(120)的上部,並形成有至少—個排音孔(72), 上述振動板(丨20)包括: 弟一振動部件(111),該第一振動部件由周邊的邊緣部 (111a)和中間的中央部(ulb)構成; 剛性部件(121),該剛性部件附著於該第一振動部件(丨 的中央部(111b),並由比重小於該第一振動部件的比重的剛 性材料構成;以及 第二振動部件(122),該第二振動部件附著於該剛性部件 (121)所附著的該第一振動部件(in)的上表面,對該剛性 件(121)進行密封。 8. 如申δ青專利範圍第7項所述的微塑揚聲器,其特徵在於,兮 第一振動部件形成爲高分子化合物膜狀。 Λ 16 M379297 9. 如申請專利範圍第7項所述的微型揚聲器,其特徵在於,該 第一振動部件透過層疊多個高分子化合物膜來形成。 10. 如申請專利範圍第7項所述的微型揚聲器,其特徵在於, 該剛性部件由選自高分子化合物、陶瓷及紙漿類中的一種 形成。 11. 如申請專利範圍第7項所述的微型揚聲器,其特徵在於, 該第二振動部件形成爲高分子化合物膜狀。 12. 如申請專利範圍第7項所述的微型揚聲器,其特徵在於, 該第二振動部件透過層疊多個高分子化合物膜來形成。 17M379297 VI. Patent Application Range: 1. An integrally formed vibrating plate for a microspeaker, characterized in that the integrally formed vibrating plate for the microspeaker comprises: a first vibrating member (111) having a peripheral edge portion (111a) and a central portion (111b) in the middle; a rigid member (121) attached to a central portion (111b) of the first vibrating member (111) and having a specific gravity smaller than a specific gravity of the first vibrating member a rigid material, and a second vibrating member (122) attached to an upper surface of the first vibrating member (111) to which the rigid member (121) is attached, the rigid member (121) Sealed. 2. The integrally formed vibrating plate for a microspeaker according to the first aspect of the invention, wherein the first vibrating member is formed in a polymer compound film shape. 3. The integrally formed vibrating plate for a microspeaker according to the first aspect of the invention, wherein the first vibrating member is formed by laminating a plurality of polymerized φ·material films. The integrally formed vibrating plate for a microspeaker according to the first aspect of the invention, wherein the rigid member is formed of one selected from the group consisting of a polymer compound and a ceramic. 5. The integrally formed vibrating plate for a microspeaker according to the first aspect of the invention, wherein the second vibrating member is formed in a polymer compound film shape. 6. The integrally formed vibrating plate for a microspeaker according to the first aspect of the invention, wherein the second vibrating member is formed by laminating a plurality of polymer compound films. 15 M379297 7. A microspeaker comprising: a yoke (2〇) having a groove (22) formed in the center; and a predetermined interval from the inner wall of the groove (22) a magnet (30) in the recess (22); a plate (32) mounted on an upper portion of the magnet (30); a frame (1) connected to an outer side of the yoke (20) to form a main body; a plate (120) supported by the inner end of the frame (1〇) and connected to the plate (32); a ring (40) to which the voice coil is attached (12〇) a lower surface and inserted into a space between the magnet (30) and the yoke (20) for connection, and up and down vibration according to a driving signal; and a protection plate (70) on the frame (10) The upper end portion extends to cover the upper portion of the vibrating plate (120), and at least one sound-discharging hole (72) is formed, and the vibrating plate (丨20) includes: a vibrating member (111), the first vibration The member is composed of a peripheral edge portion (111a) and an intermediate central portion (ulb); a rigid member (121) to which the rigid member is attached ( a central portion (111b) and composed of a rigid material having a specific gravity smaller than a specific gravity of the first vibrating member; and a second vibrating member (122) attached to the first portion to which the rigid member (121) is attached The micro-plastic speaker according to the seventh aspect of the invention is characterized in that the first vibrating member is formed to be high. The micro-speaker according to the seventh aspect of the invention is characterized in that the first vibrating member is formed by laminating a plurality of polymer compound films. The microspeaker of the seventh aspect, wherein the rigid member is formed of one selected from the group consisting of a polymer compound, a ceramic, and a pulp. The second vibrating member is formed into a polymer compound film. The microspeaker according to claim 7, wherein the second vibrating member is laminated. A polymer compound film is formed. 17
TW98211820U 2008-10-15 2009-06-30 Micro speaker diaphragm and micro speaker TWM379297U (en)

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TW201016040A (en) 2010-04-16
WO2010044526A1 (en) 2010-04-22
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CN101729961B (en) 2013-06-05
CN101729961A (en) 2010-06-09
KR20100042040A (en) 2010-04-23

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