M408897 五、新型說明： 【新型所屬之技術領域】 本創作係有關一種壓電型揚聲器，尤指一種可以改良 音質之壓電型揚聲器結構改良。 【先前技術】 傳統的揚聲器是由磁鐵、線圈及喇八振膜所組成，使 電流通過線圈時產生磁場，如此透過磁鐵的磁場與線圈的 -磁場作用推動線圈及喇9\振膜，再推動喇。八振膜周圍的空 I 氣振動，因此使得揚聲器能夠產生聲音。但是傳統的揚聲 器一直難以達到超薄化及微化的要求，不易使用在行動電 話、多媒體隨身播放器、筆記型電腦等電子產品上。 而自從壓電效應被發現以來，至今已開發出多種壓電 材料，壓電材料是為沿用已久的固體電氣機械轉換素子， 在應用上可為水晶、Rochelle鹽、鈦酸鋇系陶瓷等硬材料 。而壓電型材料應用在揚聲器的形態有縱形振動子形、雙 φ 形態形、壓電高分子形等等，其共通的訴求在於超薄化及 • 微化的形態。習知的縱形振動子、壓電高分子的揚聲器， 必需有一固定端與其他物體作固定，才能產生聲音發射， 因此常在縱形振動子、壓電高分子的一端設有一固定元件 ，利用該固定元件供縱形振動子、壓電高分子結合，再透 過固定元件與其他物體固定結合，例如裝設於行動電話、 多媒體隨身播放器、筆記型電腦等。 然而習知的縱形振動子、壓電高分子的揚聲器，其相 反於固定端的自由端在振動時，容易發生振動幅度過大的 3 M408897 情況’如此將導致壓電揚聲器實際應用上產生許多雜音或 異音，造成聲音的品質不良。緣此，本案發明人乃提出一 觀電型揚聲II改良，用以克服習知壓電揚聲器的問題及 不足，達到消除雜音及提供音質純淨度之功效。 【新型内容】 口。賴作之主要目的在提供-種改良音質之壓電型揚聲 益’稭由-音箱、一個以上的壓電振動器及一個以上的吸 震元件的組合結構改良，達料除雜音及提供音質純淨度 之目的。 > 2達上述目的，本創作改良音質之壓電型揚聲器之實 施内容係包含：一音箱，該音箱係具有-中空的容置腔的 盒體，該容置腔内設有壓電振動器的固定部；一個以上的 壓電振動器，該壓電振動器包含一板片及設置在該板片表 面的壓電材料層，使該壓電振動具有一固定端及一自由端 ，該固定端結合在該音箱的容置腔的固定部該自由端延 伸在該容置腔内；及—個以上㈣震元件，㈣震元## ，置在該音箱的容置腔内，並接觸該壓電振動器靠近自由 端的表面’用於吸收該壓電振動器自由端過度的振動。 優選的實施方案，本創作該音箱包含一盒體及一笑體 ’該盒體凹設有該容置腔，該蓋體係覆蓋在該容置腔上。 優選的實施方案，本創作該吸震元件係黏著在音箱的 容置腔的内壁。 你曰相的 的實施方案’本創作包含相互平行的-第-麼電 振動益及-第二壓f振動器，該第—壓電振動器及該第二 M408897 f電振動$的！D定端分別結合在該音箱的容置腔，該第一 振動||及遠第二壓電振動器的自由端分別延伸在該容 置腔内。 優選的實施方案，本創作包含一個設置在該第一壓電 振動器及該第二壓電振動器之間的第一吸震元件，該第一 &震it件刀別觸邊第—壓電振動器及該第二壓電振動器靠 • 近自由端的表面。 -蠱 優選的實施方案，本創作包含兩個分別結合在該容置 $内的第_吸震疋件，其中一第二吸震元件接觸該第一壓 電振動器靠近自由端的表面，另一個第二吸震元件接觸該 第二壓電振動器靠近自由端的表面。 優選的實施方案，本創作該兩個第二吸震元件係相連 接成一體成形的匸形體。 優選的實施方案，本創作包含一個設置在該第一壓電 振動器及該第二壓電振動器之間的第一吸震元件，該第一 • ^震元二分別觸該第一壓電振動器及該第二壓電振動器靠 $自由端的表面；及兩個分別結合在該容置腔内的第二吸 展元其中一第二吸震元件接觸該第一壓電振動器靠近 自。=端的表面，另一個第二吸震元件接觸該第二壓電振動 器靠近自由端的表面。 一優選的貫施方案，本創作該第一吸震元件及該兩個第 一吸震元件係相連接成一體成形的E形體。 〇藉此，本創作改良音質之壓電型揚聲器，可以透過該 吸震元件接觸該壓電振動器靠近自由端的表面結構，使該 5 M408897 吸震元件吸收該壓電振動器過度的振動，藉此克服壓 動器過度震動而致產生雜音的問題，達到消除 ^ 音質純淨度之功效。 &供 【實施方式】 茲依附圖實施例將本創作之結構特徵及其他之 目的詳細說明如下： 如第-圖、第二圖及第三圖所示，本創作改良音質之 壓電型揚聲器，其較佳的實施例係包含一音箱1、一個以 上的壓電振動器2及一個以上的吸震元件3，其中： s玄音箱1係具有一中空的容置腔丨丨的盒體，該容置腔 11内設有壓電振動器的固定部12。其中，該音箱丄較佳= 實施例係包含一盒體13及一蓋體14，該盒體13凹設有該容 置腔11 ’而該蓋體14係覆蓋在容置腔11上。 該壓電振動器2係可輸入電能而產生振動發聲的振動 器，其包含一板片21及設置在該板片21表面（兩面）的壓電 材料層22(例如鈦酸鋇系陶瓷等等），使該壓電振動2具有 一固定端23及一自由端24，該固定端23結合在該音箱i容 置腔11内的固定部12,而該自由端24延伸在該容置腔 。其中’該壓電振動器2的固定端23可以設有二凸片211 ，以利用二凸片211結合在容置腔11内的固定部ι2β §亥吸震元件3係為泡棉、碎膠、橡膠或其他具有吸震 特性的材質所構成，將該吸震元件3設置在該音箱1的容 置腔11内，並接觸該壓電振動器2靠近自由端24的表面， 用於吸收該壓電振動器2自由端24過度的振動。其中，該 M408897 吸震元件3亦可使用雙面膠帶4黏著在該音箱丄的容置腔 Π的内壁，以使該吸震元件3接觸該壓電振動器2靠近自 由端24的表面。 如第四圖及第五圖所示，本創作較佳的實施例包含有 相互平行的-第一壓電振動器2&及一第二壓電振動器以 ’該第-壓電振動器2 a及該第二壓電振動器以的固定端 ，23a、23b分別結合在該音箱i的容置腔〗〗的固定部^，並 - 使該第一壓電振動器2a及該第二壓電振動器以的自由端 • Ma、24b分別延伸在該容置腔_。並包含有一個設置在 該第-壓電振動器2a及該第二壓電振動器2b之間的第一 吸震元件3 a’該第-吸震元件3 a分別觸該第一壓電振動器 2&及該第二壓電振動器21)靠近自由端243、2朴的表面。。 从如第六_$，本創作亦可實施有兩個分別結合在該 音箱1的容置腔11内的第二吸震元件3b、3c，其中一第 二吸震元件3 b接觸該第一壓電振動器2 a靠近自/由端24a 泰2表面，另-個第二吸震元件3。接觸該第二壓電振動器以 • ·靠近自由端24b的表面。或如第七圖所示，該兩個第二吸震 .兀件3b、3 _可相連接成·"·體成形的C形體，同樣使該 第一吸震7L件3 b接觸該第一壓電振動器2&靠近自由端 2=表面’而該第二吸震元件3c接觸該第二虔電振動器 2b罪近自由端24b的表面。 如第八圖所示，本創作亦可實施有一個設置在該第一 壓電振動器2 a及該第二愿電振動器2b之間的第一吸震元 件3 a，該第-吸震元件3 a分別觸該第一愿電振動器“ 7 M408897 及該第一壓電振動器2b罪近自由端24a、24b的表面；以及 兩個分別結合在該音箱i的容置腔丨丨内的第二吸震元件3b 、3 c’其中一第二吸震元件31；)接觸該第一壓電振動器 罪近自由端24a的表面，另一個第二吸震元件3 (：接觸該第 二壓電振動器2 b靠近自由端24b的表面。再如第九圖所示 本創作該第一吸震元件3 a及該兩個第二吸震元件3卜、 3 c亦可相連接成一體成形的E形體，並依上述結構與該第 壓電振動器2 a及該第二壓電振動器2 b接觸。 本創作改良音質之壓電型揚聲器應用時，可以裝設在 行動電話、多媒體隨身播放器、筆記型電腦等電子產品上 s通電到壓電振動器2 (或第一壓電振動器2 &及第二壓 電振動器2 b)時，將能產生壓電效應，使壓電振動器2 (或第一壓電振動器2 a及第二壓電振動器2b)產生振動， 如此就能發出聲音。特別是，透過本創作該吸震元件3 ( 或第及震元件3a或第二吸震元件3b、3c)接觸該壓電 振動器2 (或第一壓電振動器2 a及第二麼電振動器靠 近自由端的表面結構，將使該吸震元件3 (或第一吸震元 件3 a或第二吸震元件3 b、3 c)吸收該壓電振動器3 (或 ，一吸震元件3 a或第二吸震元件3b、3 c)過度的振動，. 稭此克服習知壓電振動器過度震動而致產生雜音的問題， 達到消除雜音及提供音質純淨度之功效。 綜上所述，本創作改良音質之壓電型揚聲器，已確具 實用性與創作性，其技術手段之運用亦出於新穎無疑，且 功效與設計目的彻符合，已稱合理進步至明。為此，依 M408897 法提出新型專利申請， 利為禱，至感德便。准懇凊鈞局惠予詳審，並賜准專 【圖式簡單說明】 第一圖為本創作當 第二圖為本創作施例之分解立體圖 第三圖為本創作第合剖面圖M408897 V. New description: [New technical field] This creation is about a piezoelectric speaker, especially a piezoelectric speaker structure that can improve the sound quality. [Prior Art] The conventional speaker is composed of a magnet, a coil and a diaphragm, so that a magnetic field is generated when a current is passed through the coil, so that the magnetic field of the magnet and the magnetic field of the coil act to push the coil and the la 9\ diaphragm, and then push La. The air around the eight diaphragms vibrates, thus allowing the speaker to produce sound. However, traditional speakers have been difficult to achieve ultra-thin and miniaturization requirements, and are not easy to use in mobile phones, multimedia portable players, notebook computers and other electronic products. Since the piezoelectric effect was discovered, a variety of piezoelectric materials have been developed so far. Piezoelectric materials are long-lasting solid electrical and mechanical conversion elements, and can be applied to crystals, Rochelle salts, barium titanate ceramics, etc. material. The piezoelectric material used in the form of a loudspeaker has a longitudinal vibrating shape, a double φ shape, a piezoelectric polymer shape, etc., and the common appeal is in the form of ultra-thinness and micro-dimension. Conventional longitudinal vibrators and piezoelectric polymer loudspeakers must have a fixed end fixed with other objects to generate sound emission. Therefore, a fixed component is often provided at one end of the longitudinal vibrator and the piezoelectric polymer. The fixing element is combined with a longitudinal vibrator and a piezoelectric polymer, and is fixedly coupled with other objects through a fixing member, for example, a mobile phone, a multimedia portable player, a notebook computer, or the like. However, the conventional longitudinal vibrator and piezoelectric polymer speaker, which is opposite to the free end of the fixed end, is prone to excessive vibration amplitude when vibrating. 3 M408897 The situation will cause many noises in the practical application of the piezoelectric speaker or The abnormal sound causes the quality of the sound to be poor. Therefore, the inventor of the present invention proposed an improvement of the electric type Yang II to overcome the problems and deficiencies of the conventional piezoelectric speaker, and to eliminate the noise and provide the purity of the sound quality. [New content] mouth. The main purpose of Lai Zuo is to provide a combination of improved piezoelectric sound quality, improved sound quality, 'stalk-by-speaker, more than one piezoelectric vibrator and more than one shock-absorbing element, to eliminate noise and provide pure sound quality. The purpose of the degree. > 2 To achieve the above objective, the implementation of the piezoelectric speaker of the improved sound quality includes: a speaker having a hollow cavity for accommodating a cavity, and a piezoelectric vibrator provided in the accommodating cavity a fixed portion; one or more piezoelectric vibrators comprising a plate and a layer of piezoelectric material disposed on a surface of the plate, the piezoelectric vibration having a fixed end and a free end, the fixing The end is coupled to the fixing portion of the accommodating cavity of the speaker, and the free end extends in the accommodating cavity; and one or more (four) oscillating components, (4) vibrating element ##, are disposed in the accommodating cavity of the speaker, and are in contact with the speaker The surface of the piezoelectric vibrator near the free end is used to absorb excessive vibration of the free end of the piezoelectric vibrator. In a preferred embodiment, the speaker comprises a box body and a smile body. The box body is recessed with the accommodating cavity, and the cover system covers the accommodating cavity. In a preferred embodiment, the shock absorbing element is adhered to the inner wall of the accommodating cavity of the speaker. Your implementation of the phase of the present invention's creation consists of parallel-first-order vibrations and - second-pressure f-vibrators, the first-piezoelectric vibrator and the second M408897 f-electric vibration $! The D terminals are respectively coupled to the accommodating cavities of the speaker, and the free ends of the first vibration || and the far second piezoelectric vibrators respectively extend in the accommodating cavity. In a preferred embodiment, the present invention includes a first shock absorbing member disposed between the first piezoelectric vibrator and the second piezoelectric vibrator, the first & The vibrator and the second piezoelectric vibrator are on the surface near the free end. The preferred embodiment of the present invention comprises two first shock absorbing members respectively incorporated in the housing $, wherein a second shock absorbing member contacts the surface of the first piezoelectric vibrator near the free end, and the other second The shock absorbing member contacts the surface of the second piezoelectric vibrator near the free end. In a preferred embodiment, the two second shock absorbing elements are joined together to form an integrally formed dome. In a preferred embodiment, the present invention includes a first shock absorbing element disposed between the first piezoelectric vibrator and the second piezoelectric vibrator, wherein the first vibration element respectively touches the first piezoelectric vibration The second piezoelectric vibrator and the second piezoelectric vibrator are respectively connected to the surface of the free end; and two second attracting elements respectively combined in the receiving cavity are in contact with the first piezoelectric vibrator. The surface of the = end, and the other second shock absorbing element contacts the surface of the second piezoelectric vibrator near the free end. In a preferred embodiment, the first shock absorbing element and the two first shock absorbing elements are connected to form an integrally formed E-shaped body. Therefore, the piezoelectric speaker of the improved sound quality can contact the surface structure of the piezoelectric vibrator near the free end through the shock absorbing element, so that the 5 M408897 shock absorbing element absorbs excessive vibration of the piezoelectric vibrator, thereby overcoming The problem of excessive noise caused by the vibration of the actuator causes noise, and the effect of eliminating the purity of the sound quality is achieved. [Embodiment] The structural features and other purposes of the present invention are described in detail below with reference to the accompanying drawings: As shown in the first, second, and third figures, the piezoelectric speaker of the improved sound quality is created. The preferred embodiment includes a speaker 1, one or more piezoelectric vibrators 2, and one or more shock absorbing members 3, wherein: the s-sound speaker 1 has a hollow housing cavity, A fixing portion 12 of the piezoelectric vibrator is disposed in the accommodating chamber 11. Preferably, the speaker = includes a case body 13 and a cover body 14. The case body 13 is recessed with the accommodating cavity 11 ′ and the cover body 14 is covered on the accommodating cavity 11 . The piezoelectric vibrator 2 is a vibrator that can input electric energy to generate vibration and sound, and includes a plate 21 and a piezoelectric material layer 22 (for example, barium titanate-based ceramics, etc.) disposed on the surface (both sides) of the plate 21. The piezoelectric vibration 2 has a fixed end 23 and a free end 24, and the fixed end 23 is coupled to the fixing portion 12 in the accommodating cavity 11 of the speaker, and the free end 24 extends in the accommodating cavity. The fixing end 23 of the piezoelectric vibrator 2 may be provided with two protrusions 211 for combining the fixing parts ι2β in the accommodating cavity 11 by the two protrusions 211. The shock absorbing element 3 is made of foam, broken glue, a rubber or other material having shock absorbing characteristics, the shock absorbing member 3 is disposed in the accommodating cavity 11 of the speaker 1 and contacts the surface of the piezoelectric vibrator 2 near the free end 24 for absorbing the piezoelectric vibration The free end 24 of the device 2 vibrates excessively. The M408897 shock absorbing member 3 can also be adhered to the inner wall of the accommodating cavity of the speaker cymbal using a double-sided tape 4 so that the shock absorbing member 3 contacts the surface of the piezoelectric vibrator 2 near the free end 24. As shown in the fourth and fifth figures, a preferred embodiment of the present invention includes a first piezoelectric vibrator 2 & and a second piezoelectric vibrator parallel to each other to the 'the first piezoelectric vibrator 2 a fixed end of the second piezoelectric vibrator, 23a, 23b respectively coupled to the fixing portion of the housing cavity of the speaker i, and - the first piezoelectric vibrator 2a and the second pressure The free end of the electric vibrator • Ma, 24b respectively extend in the receiving cavity _. And including a first shock absorbing element 3 a ′ disposed between the first piezoelectric vibrator 2 a and the second piezoelectric vibrator 2 b. The first shock absorbing element 3 a respectively touches the first piezoelectric vibrator 2 & And the second piezoelectric vibrator 21) is close to the surface of the free ends 243, 2. . From the sixth _$, the present invention can also be implemented with two second shock absorbing members 3b, 3c respectively incorporated in the accommodating cavity 11 of the speaker 1, wherein a second shock absorbing member 3b contacts the first piezoelectric The vibrator 2a is close to the surface of the self-receiving end 24a, and the other second shock absorbing element 3. The second piezoelectric vibrator is contacted with • a surface near the free end 24b. Or as shown in the seventh figure, the two second shock absorbing members 3b, 3_ can be connected into a "C-shaped body" formed by the body, and the first shock absorbing 7L member 3b is also brought into contact with the first pressure. The electric vibrator 2& is near the free end 2 = surface ' and the second shock absorbing element 3c contacts the surface of the second electric vibrator 2b near the free end 24b. As shown in the eighth figure, the present invention can also be implemented with a first shock absorbing element 3 a disposed between the first piezoelectric vibrator 2 a and the second electrodynamic vibrator 2 b , the first shock absorbing element 3 a respectively touching the surface of the first electro-vibrator "7 M408897 and the first piezoelectric vibrator 2b near the free ends 24a, 24b; and the two respectively incorporated in the accommodating cavity of the speaker i Two shock absorbing members 3b, 3 c' of one of the second shock absorbing members 31;) contact the surface of the first piezoelectric vibrator near the free end 24a, and the other second shock absorbing member 3 (: contact the second piezoelectric vibrator 2 b is close to the surface of the free end 24b. As shown in the ninth figure, the first shock absorbing element 3 a and the two second shock absorbing elements 3 and 3 c can be connected to form an integrally formed E-shaped body, and According to the above structure, the piezoelectric vibrator 2 a and the second piezoelectric vibrator 2 b are in contact with each other. The piezoelectric speaker of the improved sound quality can be installed in a mobile phone, a multimedia portable player, and a notebook type. On the computer and other electronic products, s is energized to the piezoelectric vibrator 2 (or the first piezoelectric vibrator 2 & In the second piezoelectric vibrator 2 b), a piezoelectric effect can be generated to cause the piezoelectric vibrator 2 (or the first piezoelectric vibrator 2 a and the second piezoelectric vibrator 2 b ) to vibrate, so that it can be emitted In particular, the shock absorbing member 3 (or the third and second shock absorbing members 3b, 3c) is in contact with the piezoelectric vibrator 2 (or the first piezoelectric vibrator 2a and the second electric device). The surface structure of the vibrator near the free end causes the shock absorbing element 3 (or the first shock absorbing element 3 a or the second shock absorbing element 3 b, 3 c) to absorb the piezoelectric vibrator 3 (or a shock absorbing element 3 a or The second shock absorbing element 3b, 3 c) excessive vibration, which overcomes the problem of excessive vibration caused by the excessive vibration of the conventional piezoelectric vibrator, and achieves the effect of eliminating noise and providing purity of sound quality. The piezoelectric speaker of sound quality has been practical and creative. The application of its technical means is also novel and undoubted, and its efficacy and design purpose are in full compliance. It has been said to be reasonably improved. For this reason, a new type is proposed according to the M408897 method. Patent application, for the sake of prayer, to the sense of virtue. He sifted, and given special quasi drawings briefly described [first] second photo shows the graph when the present third picture shows the creation of a cross-sectional view of the creation of bonding an exploded perspective view of the embodiment of the present Creation
^ ^ ^第—較佳實施例之分解立體圖 面· j作第二較佳實施例之組合剖面圖 第六圖為本創作第三較佳實施例之組合剖面圖 第七圖為本創作第四較佳實施例之組合剖面圖 第八圖為本創作第五較佳實施例之組合剖面圖c 第九圖為本創作第六較佳實施例之組合剖面圖 【主要元件符號說明】 1 音箱 11 容置腔 12 固定部 13 盒體 14 蓋體 2 壓電振動器 2a 第一壓電振動器 2b 第二壓電振動器 21 板片 211 凸片 22 壓電材料層 23 固定端 23a 固定端 23b 固定端 24 自由端 24a 自由端 24b 自由端 3 吸震元件 3a 第一吸震元件 3b 第二吸震元件 3c 第二吸震元件 4 雙面膠帶 9^ ^ ^ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - The eighth section of the preferred embodiment is a combined sectional view of the fifth preferred embodiment. The ninth drawing is a combined sectional view of the sixth preferred embodiment of the present invention. [Main component symbol description] 1 Speaker 11 Accommodating chamber 12 fixing portion 13 case 14 cover 2 piezoelectric vibrator 2a first piezoelectric vibrator 2b second piezoelectric vibrator 21 plate 211 tab 22 piezoelectric material layer 23 fixed end 23a fixed end 23b fixed End 24 free end 24a free end 24b free end 3 shock absorbing element 3a first shock absorbing element 3b second shock absorbing element 3c second shock absorbing element 4 double sided tape 9