201138483 六、發明說明： 【發明所屬之技術領域】 本發明係關於使用壓难振動件產生聲音之壓t式揚聲器及使 用該壓难式揚聲器之警報裝置。 【先前技術】 如眾所周知的，以往的壓電式揚聲器，係將壓電元件固著在 振動板所成壓祕動件的外周部，藉由接著，竊㈣在收納殼體 上之構造（例如參照日本特許第32〇2丨69號公報）。以往的壓電式 射Μ收納殼料由2個構件構成，藉由接著劑將壓電振動件 的夕丨周411]著在2個構件嵌合的部位。藉此，以往的壓電式揚聲 器係於壓電振動件的相部岐在收驗體之狀態'下，壓電振動 件的中央部振動而產生聲音。 然而，以往的壓電式揚聲器為了將 ..一 u ^ 右卜因者 在收納叙體（支撑構件），_使賴著劑，·壓電式揚聲器的 製造她卜'域追加於嵌合2個構件時塗布接著劑之㈣、和 賴者劑乾燥之步驟。於塗布接著劑之步驟中，必須管理塗布接 者劑的位置及接著_塗布量，以免歸劑附著於其他部位。又 電=著劑後，需要時間讓接著劑乾燥。根據上述，以往的愿 步《雜的_。 咖^電振動件和收驗體致有製造 ，'一…八何竿态cp ’由於厭 化，而在邀電振動件的外周部產生硬化ς八二:的接著創硬 塵電式揚聲財，壓電振動件 :刀Ά果為，以往的 4勺扳動因硬化部分而受抑制 4/34 201138483 件振動的振幅變大’而有在寬頻率頻帶無 【發明内容】 發明係鑑於上述問題而研發者，本發明之目的在於提供能 造步驟在寬解歸帽得充分音壓之壓 • 及使用該壓電式揚聲器之警報裝置。 耳益 有由式揚聲器’其特徵係具備：壓電振動件，盆呈 有m件構成的壓電體及藉 〜、 =反;薄厚構件，其係與前述振動板“且:少被‘，的振 位置之第1細，於互相嵌合之狀態下被固定 支樓體係於已被固定位&體’且前述第1支撐體核述第2 合的部位挾練述薄厚韻1 體及料2切體嵌 體，其係設置麵料Μ縣轉構件；及彈性 該壓電式揚聲器中，^1^前_厚構件之間。 振動件的振動所產生聲Ί為：前述薄厚構件係以前述壓電 前述聲音輸出方向相弓1出方向做為聲音輸出方向，並朝與 切體挾持。 向如且被前述第1切體及前述第2 該壓電式揚聲器中” 支撐體具有用以挾持前述薄乂杜·則述第1支撐體及前述第2 切體的前述挾持面和前、屯:的外周部之挾持面，歸述第！ 為錐狀。 切體的前述挾持面係傾斜形成 該電式揚聲器令 者為··前述薄厚構件於被前述第】 5/34 201138483 ==第2支龍挾持_具有突部，前述突部的前端 面對方；逾述缚厚構件的内側之面呈傾斜。 剩式雜中’較佳者為：前述第丨咖及前述第2 ^_具有用以挾持前述薄厚構件的外周部之挾持面，前述第】 挾持面和前述第2支禮體的前述挾持面係於前述薄 2請心和輸之連結爾之互_她纖有 動板=:!㈣中，較佳者為:前物構件係朝與前述振 述壓電體的面為相反面之方向突出，且被_ 叉松體及前述第2支撐體所挾持。 該壓電式揚聲器中，前述彈性體以熱可塑性彈性體為佳。 該壓電式揚聲器中，以前述第】支稽 由與前述彈性體同時成形而形成為佳。π」生材抖亚錯 。該壓電嶋器中，前述彈性體彻基曱崎泡體為佳 式揚聲器中’前述薄厚構件以塑膠薄膜為佳。 定為包含與前频絲動件科構相錄頻率係 範圍内。 I振頻率之比為1:1的頻率之特定 該壓電式揚聲器中 為圓形或橢圓形為佳。 該壓電式揚聲器中 削述薄厚構件以從厚度方向所見之形狀 則述溥厚構件以由山部和谷部的至少1 6/34 201138483 種 所触的波紋係形成為環狀為佳。 揚聲器中，較佳者為：前述薄厚構件係藉由直接接 構件構件’或藉由僅經由設置在該薄厚構件和前述支撐 ^ ㈣雜體㈣該«構件相接，藉此被該切構件 偵測=二具備：斜壓電式揚聲器；用於 時，將告知周圍之^^，當藉由前述感測器偵測出周圍之異常 號輸出部;及收納前=電子訊號輸出到前述壓電式揚聲器之訊 叹、、内刖述壓電式揚聲器、前述 出部並與前述切構件為-_之外殼。…Ή號輸 根據本發明，由於 薄厚構件的外周部而切薄厚2切體挾持 及使接著劑乾燥之步驟。A 接者劑之步驟 。 …。果’依本發3讀造步驟可較為簡單 固著於支撐構件的情形 肖使賴讀將薄厚構件 的视部分。同時，本發明由；寻厚構y㈣接著 劑造成 ，有彈性體’ ϋ此缺薄厚構件 ^體和轉構件之間設 支撐體做必要以上的固定。其卜周。卩不會被第1切體和第2 構件固著於支撐構件 二二本發明比使用接著劑將 因此薄厚構件振動時^少抑_厚構件麵的因fr 響阻抗亦即音壓。 而此提尚寬頻率頻帶中的立 7/34 201138483 【實施方式】 (實施形態丨） 實施形態丨之壓電式揚聲器，係使用壓電振動件產生音聲之 #聲器。如11丨所示，本實施雜之壓電式揚聲器1具備壓電振 動件2、薄厚構件3、彈性體4以及支撐構件5。壓電式揚聲器】 如如出弩報音及聲音。警報音為3kH/附近的頻率頻帶聲。聲音為 較警報音低頻帶（5〇〇hz〜丨2〇〇丨丨z)的音波。因而，壓電式揚聲器 I須要求在宽廣的頻率頻帶提高音壓。 壓電振動件2係由壓電體21和振動板22所積層之單壓電晶 片（Unimorph)構造。如圖2所示，壓電體21及振動板22皆為圆板 形狀。 壓電體21係由具有將電子訊號變換成音聲的效果（壓電效果 )之壓電元件（Piezoelecti，ic element)所構成。本實施形態之壓電 元件係使用厚度為0.05 _以上且0.丨5丨丨训以下之鈦酸鍅酸鉛（丁 、lead zirconium titanate)。鈦酸結酸錯係三元系金屬氧化物亦即缺 酸鉛和錯酸鉛之混晶。本實施形態使用的鈦酸锆酸鉛之密度為 8.〇xl〇3l(g/cin3。 振動板22係比壓電體21的直徑還長且面積較大、厚度為〇1 _以上且0.25 mn丨以下之黃銅。本實施形態使用的黃銅之密度為 8.4χ 1 〇3 kg/cm3以上且8.5X10¾ g /cm 3以下之範圍。壓電體21的厚 度和振動板22的厚度以同等為佳。振動板22係藉由例如環氣接 著劑等，與壓電體21呈同心狀地接著在壓電體21的表面。 8/34 201138483 電體21的表面用厚度為2_左右的銀而設置著電極。如 圖3B所示’壓·]的電極連接著導線B，振動板η連接 線24。導線23、24連接著連接器25 ’該連接器μ係用來電性連 接用以將電子訊號輸出至壓電式揚聲器丨的迴路部（無圖示）者 。壓電體21的電極和導線23之連接、及振動板22和導線24之 連接，例如分別可使編晴。於壓電體21施加訊號電壓時， 21產生鮮使振動板22鶴。亦即，藉由壓電體^之變 形使振動板22振動。 …士圖3Α所不’薄厚構件3係形成甜甜圈形狀（環狀）的樹脂 薄膜（土4雜）。做為樹脂薄膜’可使用例如pH (聚嶋亞胺 ):戈PC (聚碳酸醋)、ΡΕΝ (聚萘二酸醚(Poly—r啊 )等财塑性樹脂。薄厚構件3的厚度以乃_以上且188隅以 下^粑圍為佳。薄厚構件3係藉由例如聚魏接著劑或環氧接著 』等而接著在壓電振動件2 (振動板切。藉此，如圖犯所示， 牛和振動板22結合，並設置在壓電振動件2的周圍。薄 厚構:3係藉由壓電體21的變形而與振動板22 —起振動。亦即 4厚構件3具有做為輔助振動板的功能。 圖1所不之彈性體4係藉由熱可塑性彈性體而形成環狀之構 件。亦即，本實施形態中，彈性體4係由熱可塑性材料之熱可塑 °° —斤升^成。彈性體4係設置在後述之前面側支撐體η和薄 厚構件3之間。 支撐構件5具備前面側支撐體51和後面側支撐體52，並設置 9/34 201138483 在薄厚構件3的周圍。 係用熱可塑性材料形成_狀之構件。本 支接體二的後面511，内周側設置有朝向背面方向（圖！的朝下 方向）突出之圓筒狀的突屮邱s ^ 出°丨^12 °刚面側支撐體51係藉由與彈 性齡4同時成形（二色成把、鲱 戊t iHi! (Doublemokl))而形成。藉 此，在前面側支_51的突出部5|2前端（圆W下端）設置彈 性體4。本實施形態之前面侧讀體5丨相當於本發明之第丨支推 體。亦即本實施形態中，第1支撐體係由熱可塑性材料形成。 後面側支4牙體52係藉由熱可塑性材料形成為圓筒狀之構件。 本實施形態中，後_支撐體52係使_燃性abs齡。在後面 側支樓體52的前面52卜内周側形成有凹部切。本實施形態之 後面側支樓體52相當於本發明之第2支撐體。亦即本實施形態中 第2支撐體係由熱可塑性材料形成。 對於如上述構造之前面側支撐體5丨及後面側支撐體52，在後 面側支撐體52的凹部522底面亦即載置面523載置薄厚構件3的 外周部（參照圖〗B)。然後，藉由前面側支撐體5】的後面511和 後面側支撐體52的前面521為相對向，且前面側支撐體5]的突 出部512嵌入後面側支標體52的凹部522，而使前面側支禮體51 及後面側支撐體52互相嵌合（參照圖1A)。然後，前面側支撐體 51及後面側支撐體52係於互相嵌合之狀態下被固定位置。前面側 支撐體51及後面側支撐體52於嵌合狀態下被固定位置時，前面 10/34 201138483 側支撐體5]及後面側支撐體52係以嵌合部位挾持薄厚構件3的 外周部而支㈣厚構件3。亦即，薄厚構件3係於僅透過彈性體* 而與前面側支撐體51綱且與後面側支魏52 ’被支撐構件5支樓著（被安裝著）。藉此，由於薄厚構件3確實 • 地安裝在支撐構件5 ’因此可使從壓電式揚聲器1輸出的音聲之音 壓或共振頻率穩定。前面側支撐體51和後面側支擇體52於被固 定位置後’仍可取下。亦即，前面側支撐體5】和後面側支撐體52 係可裝卸之構成。者藉由從後面側支彳#體&取下前面側支樓 體W ’即能容易地從支撐構件5取下薄厚構件3 (包含廢電振動 件2)〇 .y 接著，説明有關本實施形態之壓電式揚聲器丨的動作。從迴 路部（無圖示）藉由電子訊號將訊號電壓施加在壓電體2】時，壓 電體21即反復收縮及膨脹，但振動板22既不收縮也不膨脹，因 ，壓電振動件2會反曲。藉由壓電振動件2反復進行反曲動作， 薄厚構件3即與壓電振動件2 一起振動。藉由該振動使壓電式揚 聲器1產生音聲。 圖4係顯示從本實施形態之壓電式揚聲器】輸出的音聲之音 壓位準特性。本實施形態之壓電式揚聲器]係於直徑35 _的壓電 牛2接著甜甜圈形狀的薄厚構件3且設定為直徑％ _之構成 "之曰壓位準特性係於壓電式揚聲器1施加40Vp-p之電壓， +、 1電式揚聲裔1的前方位置之音壓位準時的結果。壓電式揚 聲為1係可將警報聲頻帶亦即高頻帶（3kHz附近）的音壓位準設 11/34 201138483 毛為丨00dB/m以上’並且在語音頻帶亦即低頻帶（5〇〇Hz〜丨2〇〇Hz )也可得到峰值音壓，而具有充分的音壓位準。 圖5係顯示本货施形態之壓觉式揚绝器丨的音響阻抗特性（ 圖5之實線）。圖5中，做為比較例亦顯示有不具薄厚構件的壓電 式揚聲器之音響阻抗特性（圖5之虛線）。比較例之壓電式揚聲器 屮丨遗著壓電體之變形而振動的構件為振勋板單體。壓電體2丨係顯 不與觉容器相同的特性，因此當頻率變高時音響阻抗變小。本實 施形態之壓電式揚聲器丨及比較例之壓電式揚聲器，當輸出警報 聲和聲音兩方時，係使音波頻率在400丨-Iz〜4kHz之範園掃描。如上 述，使音波頻率掃描時，最大電流流過的頻率為3|(Hz附近之共振 點。在共振點的音響阻抗，於本實施形態之情形為6〇〇Ω，比較例 之情形為200Ω〇因而’本實施形態之壓電式揚聲器〗相較於比較BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure t-type speaker that generates sound using a pressure-sensitive vibrating member and an alarm device using the same. [Prior Art] As is well known, the conventional piezoelectric speaker fixes the piezoelectric element to the outer peripheral portion of the vibrating plate, and then thieves (4) the structure on the housing case (for example, Refer to Japanese Patent No. 32〇2丨69). The conventional piezoelectric radiant housing material is composed of two members, and the squatting period 411 of the piezoelectric vibrating member is placed on the portion where the two members are fitted by the adhesive. As a result, in the conventional piezoelectric speaker, the phase portion of the piezoelectric vibrator is in the state of the receiving body, and the central portion of the piezoelectric vibrator vibrates to generate sound. However, the conventional piezoelectric speaker is added to the fitting 2 in order to store the body (support member), the reliance agent, and the piezoelectric speaker. The components are coated with the (4) adhesive and the drying agent. In the step of applying the adhesive, it is necessary to manage the position of the coating agent and the amount of coating to prevent the adhering agent from adhering to other portions. After the electric charge, it takes time for the adhesive to dry. According to the above, the past wishes are "Miscellaneous." The coffee ^ electric vibrating parts and the acceptance body have been manufactured, and the 'one... eight 竿 竿 cp ' due to the irritating, but the hardening of the outer part of the invitation vibrating piece ς 82: then create a hard dust electric speaker Piezoelectric vibrating piece: the knife blade is that the previous 4 scoops are suppressed by the hardened part. 4/34 201138483 The amplitude of the vibration becomes larger, and there is no wide frequency band. [Invention] In view of the above problems And the developer, the object of the present invention is to provide a warning device capable of making a step to widen the full sound pressure and an alarm device using the piezoelectric speaker. The ear-friendly speaker has the characteristics of: a piezoelectric vibrating member having a piezoelectric body composed of m pieces and a negative-thickness member; the thin-thick member is attached to the vibrating plate "and is less". The first of the vibration positions is fixed in a state in which the fixed branch system is fixed to the fixed position & and the first support is described as the second combined portion. Material 2 inlay inlay, which is set to fabric the fabric of the county; and elastic in the piezoelectric speaker, between the front and the thick member. The vibration of the vibrating member produces the sonar: the thin and thick member is The piezoelectric sound output direction is aligned with the output direction as the sound output direction, and is held toward the body. The support is provided by the support body and the second piezoelectric speaker. The above-mentioned holding surface of the first support and the second cutting body and the holding surface of the front and the outer peripheral portion of the second cutting body are described in the above-mentioned sputum. It is tapered. The above-mentioned holding surface of the body is inclined to form the electric speaker. The thin-thick member is held by the above-mentioned 5/34 201138483 == the second branch _ has a protrusion, and the front end of the protrusion is facing the side The surface of the inner side of the thick member is inclined. In the case of the remaining type, it is preferable that the second coffee and the second one have a gripping surface for holding the outer peripheral portion of the thin and thick member, and the first gripping surface and the gripping surface of the second branch body In the above-mentioned thin 2, the heart and the loser are connected to each other. _ her fiber has a moving plate =:! (4), preferably, the front member is oriented in the opposite direction to the surface of the piezoelectric body. It is protruded and held by the fork body and the second support. In the piezoelectric speaker, the elastic body is preferably a thermoplastic elastomer. In the piezoelectric speaker, it is preferable to form the above-mentioned first member and the elastic body at the same time. π" raw materials shake the wrong. In the piezoelectric device, the elastic body is a good type of speaker. The thin member is preferably a plastic film. It is defined to include the frequency system recorded in the structure of the pre-frequency filament. The frequency of the I-vibration frequency is 1:1. The piezoelectric speaker is preferably circular or elliptical. In the piezoelectric speaker, the thin-thickness member is cut to have a shape as seen from the thickness direction. It is preferable that the thick member is formed into a ring shape by a corrugation system which is touched by at least 16 6/34 201138483 of the mountain portion and the valley portion. In the speaker, it is preferable that the thin-thick member is connected to the member by the direct connection member member or by the thin member and the support member (four) Measure = 2 with: oblique piezoelectric speaker; when used, will inform the surrounding ^ ^, when the external sensor is detected by the above-mentioned sensor; and before storage = electronic signal output to the aforementioned piezoelectric The sigh of the speaker, the piezoelectric speaker, the aforementioned outlet and the outer member of the cutting member are -_. The nickname is transmitted according to the present invention, and the step of drying and thinning the adhesive is carried out due to the outer peripheral portion of the thin and thick member. A step of the receiver. .... The result of the reading process can be relatively simple. Fixing the support member is a matter of reading the thin portion of the thin member. At the same time, the present invention is caused by the thickening of the y (four) adhesive, and the elastic body is provided with a support between the thin and thick member and the support member. Its week. The crucible is not fixed to the support member by the first body and the second member. The second invention is less than the use of an adhesive, so that the thin member is vibrated. In the present invention, the piezoelectric speaker of the embodiment is a speaker that generates a sound using a piezoelectric vibrating member. As shown in Fig. 11, the piezoelectric speaker 1 of the present embodiment includes a piezoelectric vibrating member 2, a thin member 3, an elastic body 4, and a supporting member 5. Piezoelectric speakers] such as the sound and sound. The alarm sound is a frequency band sound of 3kH/near. The sound is a sound wave with a lower frequency band (5〇〇hz~丨2〇〇丨丨z) than the alarm sound. Therefore, the piezoelectric speaker I is required to increase the sound pressure in a wide frequency band. The piezoelectric vibrator 2 is constructed of a monomorph of a piezoelectric body 21 and a diaphragm 22. As shown in Fig. 2, the piezoelectric body 21 and the vibrating plate 22 are all in the shape of a circular plate. The piezoelectric body 21 is composed of a piezoelectric element (piezoelecti, ic element) having an effect of converting an electronic signal into a sound sound (piezoelectric effect). In the piezoelectric element of the present embodiment, lead zirconium titanate having a thickness of 0.05 Å or more and 0.5 Å or less is used. The titanate acid ternary metal oxide is a mixed crystal of lead acid deficiency and lead acid. The density of lead zirconate titanate used in the present embodiment is 8. 〇xl 〇 3l (g/cin3. The diaphragm 22 is longer than the diameter of the piezoelectric body 21 and has a large area, and the thickness is 〇1 _ or more and 0.25. The brass of mn丨 or less. The density of the brass used in the present embodiment is 8.4 χ 1 〇 3 kg/cm 3 or more and 8.5×10 ⁄ 4 g /cm 3 or less. The thickness of the piezoelectric body 21 and the thickness of the vibration plate 22 are The vibrating plate 22 is attached to the surface of the piezoelectric body 21 concentrically with the piezoelectric body 21 by, for example, a ring-shaped adhesive or the like. 8/34 201138483 The thickness of the surface of the electric body 21 is about 2 mm. The electrode is provided with silver. The electrode of 'pressure> is connected to the wire B as shown in Fig. 3B, and the vibration plate η is connected to the wire 24. The wires 23 and 24 are connected to the connector 25' which is used for electrical connection. The electronic signal is output to the circuit portion (not shown) of the piezoelectric speaker 。. The connection between the electrode of the piezoelectric body 21 and the wire 23, and the connection between the diaphragm 22 and the wire 24 can be made, for example, respectively. When the signal voltage is applied to the piezoelectric body 21, 21 produces a vibrating plate 22, that is, the vibration is caused by the deformation of the piezoelectric body The plate 22 is vibrated. The thin film member 3 is formed into a doughnut-shaped (annular) resin film (soil). As the resin film, for example, pH (polyimine) can be used: PC (polycarbonate), ΡΕΝ (poly-naphthalene ether (Poly-r)) and other plastic plastic resin. The thickness of the thin and thick member 3 is preferably _ or more and 188 隅 or less. The thin and thick member 3 is For example, a poly-wei adhesive or an epoxy is applied, and then the piezoelectric vibrating member 2 (the vibrating plate is cut. Thereby, as shown in the figure, the cow and the vibrating plate 22 are combined and disposed around the piezoelectric vibrating member 2 Thin and thick structure: The 3 series vibrates together with the vibrating plate 22 by the deformation of the piezoelectric body 21. That is, the 4-thick member 3 functions as an auxiliary vibrating plate. The elastic body 4 of Fig. 1 is thermally The elastic member is formed into a ring-shaped member. That is, in the present embodiment, the elastic body 4 is formed by thermoplastic molding of the thermoplastic material. The elastic body 4 is provided on the front side support η which will be described later. Between the thin and thick members 3. The support member 5 is provided with a front side support body 51 and a rear side support body 52, and is provided with 9/34 20113 8483 is formed around the thin member 3. The thermoplastic material is formed into a _-shaped member. The rear surface 511 of the second support body is provided with a cylindrical shape protruding toward the back surface direction (downward direction of FIG. The 面 屮 出 出 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 The front end (the lower end of the circle W) of the protruding portion 5|2 of the branch_51 is provided with the elastic body 4. The front side reading body 5 of the present embodiment corresponds to the third embodiment of the present invention. That is, in the present embodiment, the first support system is formed of a thermoplastic material. The rear side branch 4 tooth body 52 is a member formed into a cylindrical shape by a thermoplastic material. In the present embodiment, the post-support 52 is made to have a flammability abs age. A concave portion is formed on the inner peripheral side of the front surface 52 of the rear side branch body 52. The rear side branch body 52 of the present embodiment corresponds to the second support of the present invention. That is, in the present embodiment, the second support system is formed of a thermoplastic material. In the front side support body 5'' and the rear side support body 52, as described above, the outer peripheral portion of the thin member 3 is placed on the bottom surface of the concave portion 522 of the rear side support body 52, that is, the mounting surface 523 (see Fig. B). Then, the rear surface 511 of the front side support body 5 and the front surface 521 of the rear side support body 52 are opposed to each other, and the protruding portion 512 of the front side support body 5] is fitted into the concave portion 522 of the rear side support body 52, thereby The front side support body 51 and the rear side support body 52 are fitted to each other (refer to FIG. 1A). Then, the front side support body 51 and the rear side support body 52 are fixed in a state in which they are fitted to each other. When the front side support body 51 and the rear side support body 52 are fixed in the fitted state, the front side 10/34 201138483 side support body 5] and the rear side support body 52 hold the outer peripheral portion of the thin member 3 at the fitting portion. Branch (four) thick member 3. That is, the thin and thick member 3 is attached to the front side support body 51 only by the elastic body * and is supported (attached) to the rear side support member 52'. Thereby, since the thin member 3 is surely mounted on the support member 5', the sound pressure or resonance frequency of the sound output from the piezoelectric speaker 1 can be stabilized. The front side support body 51 and the rear side support body 52 are still removed after being fixed. That is, the front side support body 5] and the rear side support body 52 are detachably constructed. By removing the front side branch body W' from the rear side support body, the thin member 3 (including the waste electric vibration member 2) can be easily removed from the support member 5. 接着. The operation of the piezoelectric speaker 实施 of the embodiment. When the signal voltage is applied to the piezoelectric body 2 by the electronic signal from the circuit portion (not shown), the piezoelectric body 21 repeatedly contracts and expands, but the vibration plate 22 neither contracts nor expands, because the piezoelectric vibration Piece 2 will be recurved. The piezoelectric vibrator 2 repeats the recursive motion, and the thin member 3 vibrates together with the piezoelectric vibrator 2. The piezoelectric speaker 1 generates a sound by the vibration. Fig. 4 is a view showing the sound pressure level characteristics of the sound sound outputted from the piezoelectric speaker of the embodiment. The piezoelectric speaker of the present embodiment is a piezoelectric element 2 having a diameter of 35 Å and a doughnut-shaped thin member 3, and is set to have a diameter % _ constituting the squeezing level characteristic of the piezoelectric speaker. 1 The result of applying a voltage of 40Vp-p, and the sound pressure level of the front position of the electric speaker 1 is 1. The piezoelectric speaker is a system that can set the sound pressure level of the alarm sound band, that is, the high frequency band (near 3 kHz) to 11/34 201138483, which is 丨 00 dB/m or more, and in the voice band, that is, the low frequency band (5 〇 〇Hz~丨2〇〇Hz) can also get the peak sound pressure, and have a sufficient sound pressure level. Fig. 5 is a view showing the acoustic impedance characteristics of the embossing type hoisting device of the present embodiment (solid line in Fig. 5). In Fig. 5, the acoustic impedance characteristics of the piezoelectric speaker having no thin member are also shown as a comparative example (dashed line in Fig. 5). Piezoelectric speaker of the comparative example The member that vibrates by the deformation of the piezoelectric body is a vibration plate unit. Since the piezoelectric body 2 has the same characteristics as the sensible container, the acoustic impedance becomes small as the frequency becomes higher. In the piezoelectric speaker of the present embodiment and the piezoelectric speaker of the comparative example, when both the alarm sound and the sound are output, the sound wave frequency is scanned in a range of 400 丨 - Iz to 4 kHz. As described above, when the sound wave frequency is scanned, the frequency at which the maximum current flows is 3|(the resonance point near Hz. The acoustic impedance at the resonance point is 6 Ω in the case of the present embodiment, and 200 Ω in the comparative example). Therefore, the piezoelectric speaker of the present embodiment is compared with the comparison
從以上説明，藉由本實施形態之壓電式揚聲器丨，由於支撐構 件5的則面側支撐體51和後面側支推體係於經固定位置時狹 持’専厚構件3的外周部而支撐薄厚構件3，因而不需要塗布接著劑 之步驟及使接著劑乾燥之步驟。其結果，本實施形態的壓電式揚 聲器1的製造步驟可得以簡化。 又，本實施形態之壓電式揚聲器】 側支撐體52挾持薄厚構件3 係前面側支據體51和後面As described above, according to the piezoelectric speaker cartridge of the present embodiment, the support member 5 and the rear side support body 51 and the rear side support system narrowly support the outer peripheral portion of the thick member 3 at the fixed position to support the thickness. The member 3 thus does not require a step of applying an adhesive and a step of drying the adhesive. As a result, the manufacturing steps of the piezoelectric speaker 1 of the present embodiment can be simplified. Further, in the piezoelectric speaker of the present embodiment, the side support body 52 holds the thin member 3 and the front side support body 51 and the rear side.
十因為接著劑造成的硬化部分。 +的情形不同，能消除薄厚 。同時，本實施形態之壓電 12/34 201138483 式揚聲器i係於前面側支和薄厚構件3之間設置有彈时 4 ’因此缺3的相部不會被前_狀體51和後面旦 側支撐體52做必要以上之固定。薄厚構件3令因為接著劑造成的 硬化部分以及前面側支樓體51及後面側支撐體52對薄厚構件3 . 顺的必要以上之固定，會成為抑制薄厚構件3振動之因素。此 等之結果，本實施形態之㈣式揚聲器〗相較練雌著劑將薄 厚構件□敦支撐構件的情形，由於能減少抑制薄厚構件3振動 之因素’ ^能使薄厚 3麵日她轉大，而能提高在寬 頻率頻帶（低頻帶及共振點）之音響阻抗亦即音壓。 ， 再者’本實施形態之塵電式揚聲器t係支推構件㈣前面側 支撐體51和後面側支_2 _卸的，前面側支 51和後 面側支龍52係於麵定位置時切薄厚構件3，因此相較於使 用接者·溥厚構件固著於切構件的情形，薄厚構件3對支樓 構件5可較容易地進行裝卸。 ”又，本實施形態之壓電式揚聲器1藉由彈性體4為熱可塑性 弓早性體，而能使缚厚構件3振動時的振幅更大，而能以簡單的構 成確實地提高在寬頻率頻帶（低頻帶及共振點）的音響阻抗 ' 音壓。 再者本之壓是式揚聲器！藉由前面側支樓體Η和 彈性體4為熱可_料且同時成形，而能形成前面側支撐體51 和彈性體4為一體之構造。因h Λ 错由本實施形態之壓電式揚聲 器卜能簡化支撲構件5及彈_4的製造步稀（包含組裝步驟） 13/34 201138483 又，本實施形態之壓電式揚聲器丨係藉由薄厚構件3為塑膠 薄膜’而能降低薄厚構件3的成本並提高薄厚構件3的可靠性（ 财熱性）。 又，做為本實施形態之變形例，彈性體4亦可不設置在前面 侧支撐體5丨和薄厚構件3之間，而設置在後面惻支撐體52和薄 厚構件3之間。此變形例之壓電式揚聳器丨係藉由後面側支撐體 52和彈性體4為熱可塑性材料且同時成形，而能形成後面側支撐 體52和彈性體4為一體之構造。因此，籍由此變形例之壓電式揚 聲器丨，與本實施形態之壓電式揚聲器1的情形同様地，能簡化支 擇構件5及彈性體4之製造步驟（包含组裝步驟）。此變形例的情 形’後面側支撐體52相當於本發明之第1支撐體，前面側支撐體 51相當於本發明之第2支樓體。 又，彈性體4亦可設置在前面側支撐體5丨和薄厚構件3之間 、及後面側支揹體52和薄厚構件3之間兩方。亦即，亦可在壓電 式揚聲器〗設置2個彈性體4。於該情形之壓電式揚聲器丨係藉由 前面側支撐體5]和後面側支撐體52和彈性體4為熱可塑性材料 ，且前面側支撐體5]和一方之彈性體4為同時成形，後面側支撐 體52和另一方之彈性體4為同時成形，而能形成前面側支樓體 和一方之彈性體4為一體之構造及後面側支撐體52和另一方之彈 性體4為一體之構造。因此，藉由上述壓電式揚聲器丨，與本實施 升久悲'之壓電式揚聲器丨的情形同様地，能簡化支撐構件5及彈性 14/34 201138483 體4之製造步驟（包含組裝步驟）。 彈性體4亦可使用聚胺基曱Ten because of the hardening part caused by the adhesive. The situation is different, and the thickness can be eliminated. At the same time, the piezoelectric 12/34 201138483 type speaker i of the present embodiment is provided with a spring between the front side support and the thin member 3, so that the phase portion lacking 3 is not affected by the front ridge 51 and the rear side. The support body 52 is fixed as necessary. The thin and thick member 3 causes the hardened portion due to the adhesive and the front side support body 51 and the rear side support body 52 to be fixed to the thin member 3, which is a factor for suppressing the vibration of the thin member 3. As a result of this, in the case of the speaker of the fourth embodiment of the present embodiment, the thin-thick member member can be reduced in comparison with the case where the female agent is thinner and thicker, and the factor of suppressing the vibration of the thin-thick member 3 can be reduced. The sound impedance in the wide frequency band (low frequency band and resonance point), that is, the sound pressure can be improved. Further, in the dust electric speaker t-series member (four) of the present embodiment, the front side support body 51 and the rear side support body _ are unloaded, and the front side support 51 and the rear side support 52 are cut at the surface position. Since the thin member 3 is thinned, the thin member 3 can be easily attached and detached to the branch member 5 as compared with the case where the connector and the thick member are fixed to the cutting member. Further, in the piezoelectric speaker 1 of the present embodiment, the elastic body 4 is a thermoplastic arch early body, and the amplitude when the thick member 3 is vibrated can be made larger, and the broadband structure can be surely improved in a simple configuration. The acoustic impedance of the rate band (low frequency band and resonance point) is the sound pressure. In addition, the pressure is a type of speaker! The front side of the building body and the elastic body 4 are hot and can be formed at the same time, and can form the front. The side support body 51 and the elastic body 4 are integrally formed. The piezoelectric speaker of the present embodiment can simplify the manufacturing steps of the baffle member 5 and the elastic body 4 (including the assembly step) due to h Λ 13 13/34 201138483 In the piezoelectric speaker system of the present embodiment, the thin member 3 is a plastic film ′, and the cost of the thin member 3 can be reduced, and the reliability (conservation property) of the thin member 3 can be improved. For example, the elastic body 4 may not be disposed between the front side support body 5丨 and the thin-thickness member 3, but may be disposed between the rear weir support body 52 and the thin-thickness member 3. The piezoelectric type of the lifter is used in this modification. The rear side support body 52 and the elastic body 4 are The plastic material is formed at the same time, and the rear side support 52 and the elastic body 4 can be integrally formed. Therefore, the piezoelectric speaker 由此 according to the modification is the same as the piezoelectric speaker 1 of the present embodiment. The manufacturing step (including the assembly step) of the support member 5 and the elastic body 4 can be simplified. In the case of this modification, the rear side support body 52 corresponds to the first support body of the present invention, and the front side support body 51 corresponds. Further, the elastic body 4 may be provided between the front side support body 5 and the thin member 3, and between the rear side support body 52 and the thin member 3. It is also possible to provide two elastic bodies 4 in the piezoelectric speaker. In this case, the piezoelectric speaker system is made of a thermoplastic material by the front side support body 5] and the rear side support body 52 and the elastic body 4, and the front side The side support body 5] and one of the elastic bodies 4 are simultaneously formed, and the rear side support body 52 and the other elastic body 4 are simultaneously formed, and the front side side branch body and the one side elastic body 4 can be integrally formed. Rear side support 52 and the other side of the bomb The body 4 is a one-piece structure. Therefore, with the piezoelectric speaker 上述 described above, the support member 5 and the elastic body 14/34 201138483 can be simplified in the same manner as the piezoelectric speaker 升 of the present embodiment. Manufacturing step (including assembly step). Elastomer 4 can also use polyamine hydrazine
亦即音壓。 又’做為本實施形態之變形例，如 如圖6所示，薄厚構件3 做為本實施形態之另一變形例， 酸酉旨發泡體取代彈性體。此轡形似t 可使用形成圓板狀的樹脂薄膜（圓形樹脂薄膜）。此變形例中，亦 與本實施形態同様地，薄厚構件3係與振動板22結合且設置在壓 電振動件2的周圍（參照圖3B)。 CV,1 又，做為本實施形態之其他變形例，如圖7所示，亦可在薄 厚構件3設置波紋31。薄厚構件3為具有如圖7所示之波紋31的 構成時’比薄厚構件3不具有波紋M的構成更能提高音壓。 /專厚構件3可使用以木漿做為原材料之紙、亦可使用以構樹 (Paper Mulben’y)、結香（Edgeworthia chtysamha )、竹子等非木材 植物做為原材料之紙，取代樹脂薄膜。又，薄厚構件3亦可使用 不織布，亦可使用在不織布含浸接著劑而使其具有剛性之材料。 再者，薄厚構件3亦可使用聚酯經施行胺基甲酸酯塗模之材料， 亦可使用鈦或鋁等。 又’做為本實施形態之變形例’亦可採用在前面側支標體Η 形成凹部、在後面側支撐體52設置突出部之構成。此變形例的情 形’前面側支撐體5〗及後面側支撐體52係藉由後面側支樓體52 15/34 201138483 的突出部進入前面側支撐體5丨的凹部而嵌合。 又，前面側支撐體5丨及後面側支撐體52，亦可不挾持薄厚構 件3的外周部全體來支撐薄厚構件3，而挾持薄厚構件3外周部的 一部分來支撐薄厚構件3。例如，前面側支撐體51及後面侧支撐 W 5—亦可挾持薄厚構件3的中心處相對向之位置（2點）以挾持 消厚構件3的外周部’亦可在薄厚構件3的外周方向每相隔丨2()。 的位1 (3點）挾持薄厚構件3的外周部，亦可在薄厚構件3的外 周方向每相隔90。的位置（4點）挾持薄厚構件3的外周部。於此 情形，做為彈性體4可使用非形成為環狀的構件，而係因應挾持 位置之大小的構件。又，前面側支撐體51及後面側支撐體52挾 持濟厚構件3的位置數並不限定於2點〜4點，5點以上亦可。 (實施形態2) 在實施形態2 ’如圖8所示，就有關使用實施形態丨之壓電式 揚聲器丨的煙感測器6做說明。本實施形態之煙感測器6係例如 安裝在住宅等的住宅用火災告知器（住宅用火災警報器）等，其 能於火災發生時感測到煙且輸出音聲，將火災之訊息通知居住者 。煙感測器ό相當於本發明之警報裝置。 這種煙感測器6係安裝於住宅内的起居室、寢室、樓梯或走 廊等，為了不挑設置場所且避免妨礙室内設計而須要求精簡的尺 寸、薄型的尺寸。因而，做為煙感測器6，以組裝有比電動揚聲器 (Dynamic speaker)小型的壓電式揚聲器1之機器為佳。 煙感測器6具備煙感測部6]、基板迴路62、外殼63、基部 16/34 201138483 料以及壓電式揚聲器 煙感測部61係使用發光部 測煙。煙_部61 (域7以光學方式偵 學基台叫有各自;發光部及受光部之光學基台如。光 。防虫躯I // 九坆入光予基台611内部而設置 .*光二設光=!611外形之筒狀。發光部及 来邱m 路62。發光部設置有做為光源之led，受 鋪:騎絲自_叫喊統件。當基 A 干基台611 a夺’發光部及受光部係收納在光學 土。1。此時，f光部係於光學基台 光部之光的光軸上之μ * 円配置在偏.離來自發 技部絲配置於來自發光部 / ^上。又’因為光學基台61〗的各迷宮式壁使外光不會 知入，因此受光部不會接收到外光。 上述構造之煙感測部61中，當光學基台611内部沒有煙時， 來自發光部之光不會被受光部接收。另一方面，光學基台如内 部存在有煙時，在煙感測部61中，來自發光部之光因為煙而散亂 ，叉先部接㈣《u味。亦即，煙感測部”藉由在受 收光而偵測到煙。 基板迴路62具備安農基板62卜安裳基板621安裳有··判定 部（無圖示），其制以在煙感測部01的受光部所接_的光2 為界限値以上時，判定發生火哭；及用以使屋電式揚聲器】振動 之訊號輸出部（無圖示）。訊號輸出部於煙感測部Μ偵測到煙時 17/34 201138483 ，將艰子sil唬輸出到壓電式揚聲器卜以使從壓電式揚聲器】輪出 用於告知發生火災的音$。又，安裝基板62】設置有按鍵犯:。去 蓋子66被安裝在收納基板迴路62的後述主體65時，按鍵6。的 前面部623從蓋子66的開口部665露出於外部。若按壓操作露出 於外部的按鍵622的前面部623,來自壓電式揚聲器丨的音聲即浐 止。練迴路62的判定部及煙感測部61相當於本發明之感^ 外殼63具備：收納煙感測部61及基板迴路62之主體65、安 裝在主體65表惻（圖8之上側）之蓋子66、絲在主^背: (圖8之下側）之背側蓋67。主體65和蓋子66和背側蓋67係各 自以難燃It ABS相:f脂形成之構件。於外殼63中收納有煙感測部 6丨及基板迴路62。 ° 主k幻具備圓板狀的底面部⑹。底面部⑹設置有做為後 面側支私體52之朝前面方向（圖8之上方向）突出的圆筒狀之肋 本實轭形態中，後面侧支撐體52係與主體65 —體設置。於底 面^ 651域有安裝有防蟲網612之開口部653、和讓後述電池收 ^ 672插入之開口部654。從底面部651的外周部，與底面部 ,収°又置著朝上下方向突出的圓筒狀之側面部652。側面部652 、成有複數開口窗655、655···。複數開口窗655、MS···係以組框 、之，數窗框分隔成格子狀，以讓煙流入煙感測部6卜 么蓋子66具備曲面狀的前面部661。於前面部661 —體設置有 &面661的外周部朝後方（圖8之下方向）突出之圓筒狀的 18/34 201138483That is, sound pressure. Further, as a modification of the embodiment, as shown in Fig. 6, the thin and thick member 3 is another modification of the embodiment, and the sour foam is substituted for the elastomer. This 辔 shape like t can be used to form a disk-shaped resin film (round resin film). Also in this modification, as in the present embodiment, the thin and thick member 3 is coupled to the diaphragm 22 and provided around the piezoelectric vibrator 2 (see Fig. 3B). CV, 1 Further, as another modification of the embodiment, as shown in Fig. 7, the bellows 31 may be provided in the thin member 3. When the thin and thick member 3 has a configuration of the corrugations 31 as shown in Fig. 7, the sound pressure can be improved more than the configuration in which the thin member 3 does not have the corrugations M. The thick-thickness member 3 can use paper made of wood pulp as a raw material, or a paper made of non-wood plants such as Paper Mulben’y, Edgeworthia chtysamha, and bamboo as a raw material instead of the resin film. Further, the thick member 3 may be made of a non-woven fabric or a material having a rigidity in which the non-woven fabric is impregnated with an adhesive. Further, as the thin and thick member 3, a material obtained by applying a urethane to a polyester may be used, and titanium or aluminum may be used. Further, a modification of the present embodiment may be employed in which a concave portion is formed in the front side support body 突出 and a protruding portion is provided on the rear side support body 52. In the modified example, the front side support body 5 and the rear side support body 52 are fitted into the concave portion of the front side support body 5 by the protruding portion of the rear side branch body 52 15/34 201138483. Further, the front side support body 5 and the rear side support body 52 may support the thin member 3 without holding the entire outer peripheral portion of the thin and thick member 3, and hold a part of the outer peripheral portion of the thin member 3 to support the thin member 3. For example, the front side support body 51 and the rear side support W 5 - can also hold the opposite position (2 points) at the center of the thin member 3 to hold the outer peripheral portion of the thickened member 3 ' also in the outer circumferential direction of the thin member 3 Each phase is separated by 2 (). Position 1 (3 points) holds the outer peripheral portion of the thin member 3, and may be spaced apart by 90 in the outer circumferential direction of the thin member 3. The position (4 o'clock) holds the outer peripheral portion of the thin member 3. In this case, as the elastic body 4, a member which is not formed into a ring shape may be used, and a member which is in a position to hold the position is used. Further, the number of positions of the front side support body 51 and the rear side support body 52 for holding the thick member 3 is not limited to two to four points, and five or more points may be used. (Embodiment 2) In the second embodiment, as shown in Fig. 8, a smoke sensor 6 using a piezoelectric speaker cartridge of the embodiment will be described. The smoke sensor 6 of the present embodiment is installed, for example, in a house fire inspector (house fire alarm) such as a house, and can sense smoke and output sound when a fire occurs, and notify the fire message. Resident. The smoke sensor ό corresponds to the alarm device of the present invention. Such a smoke sensor 6 is installed in a living room, a bedroom, a staircase, a gallery, or the like in a house, and requires a compact size and a thin size in order not to pick up a place and avoid obstructing the interior design. Therefore, as the smoke sensor 6, it is preferable to assemble a machine having a piezoelectric speaker 1 which is smaller than a dynamic speaker. The smoke sensor 6 is provided with a smoke sensing portion 6], a substrate circuit 62, a casing 63, a base portion 16/34 201138483, and a piezoelectric speaker smoke sensing portion 61 for measuring smoke using a light-emitting portion. Smoke_Part 61 (Field 7 is called the optical base station; the optical base of the light-emitting part and the light-receiving part is such as light. The insect-proof body I // is set in the light to the inside of the base 611. *Light 2 Set the light =! 611 shape of the tube shape. The light-emitting part and the Qiu m road 62. The light-emitting part is provided with a led as a light source, and is covered by the screaming screaming unit. When the base A dry base 611 a wins ' The light-emitting portion and the light-receiving portion are housed in the optical soil. 1. At this time, the μ-light portion of the optical portion of the optical base unit is disposed on the optical axis of the optical base unit, and the light is disposed on the optical axis of the optical base unit. And the upper part of the labyrinth wall of the optical base 61 does not receive the external light, so the light receiving unit does not receive the external light. In the smoke sensing unit 61 of the above configuration, the optical base is used. When there is no smoke inside the 611, the light from the light-emitting portion is not received by the light-receiving portion. On the other hand, when there is smoke inside the optical base, in the smoke sensing portion 61, the light from the light-emitting portion is scattered due to the smoke. The fork is first connected (four) "u taste. That is, the smoke sensing portion" detects smoke by receiving light. The substrate circuit 62 is provided with an Annon substrate 62 The substrate 621 is provided with a determination unit (not shown), and when the light 2 connected to the light receiving portion of the smoke sensing unit 01 is equal to or greater than the limit 値, it is determined that a fire is crying; Speaker] vibration signal output (not shown). The signal output is detected in the smoke sensing unit when the smoke is detected 17/34 201138483, and the hard silicon is output to the piezoelectric speaker to make the piezoelectric The speaker is rotated to notify the sound of the fire. In addition, the mounting substrate 62 is provided with a button: when the cover 66 is attached to the main body 65 of the substrate circuit 62, the front portion 623 of the button 6 is The opening portion 665 of the cover 66 is exposed to the outside. When the front surface portion 623 of the button 622 exposed to the outside is pressed, the sound from the piezoelectric speaker 浐 is stopped. The determination unit of the training circuit 62 and the smoke sensing unit 61 are equivalent. The casing 63 of the present invention includes a main body 65 that houses the smoke sensing unit 61 and the substrate circuit 62, and a cover 66 that is attached to the surface of the main body 65 (on the upper side of FIG. 8), and the wire is in the main back: (Fig. 8 The back side cover 67 of the lower side. The main body 65 and the cover 66 and the back side cover 67 are each in a flame-retardant It ABS phase: A member for forming a fat. The smoke sensing portion 6A and the substrate circuit 62 are housed in the outer casing 63. The main bottom portion has a disk-shaped bottom surface portion (6). The bottom surface portion (6) is provided as a rear side private body 52. In the cylindrical rib yoke form that protrudes in the front direction (the upward direction in Fig. 8), the rear side support body 52 is integrally provided with the main body 65. The opening of the insect net 612 is installed in the bottom surface 651. A portion 653 and an opening portion 654 into which the battery receiver 672 to be inserted is inserted. The outer peripheral portion of the bottom surface portion 651 and the bottom surface portion are further provided with a cylindrical side surface portion 652 that protrudes in the vertical direction. The side surface portion 652 There are a plurality of opening windows 655, 655 .... The plurality of opening windows 655 and MS are grouped in a frame, and the number of window frames are divided into a lattice shape so that the smoke flows into the smoke sensing unit 6, and the cover 66 has a curved front surface portion 661. The front portion 661 is provided with a cylindrical shape in which the outer peripheral portion of the & face 661 protrudes rearward (in the direction of the lower direction of FIG. 8). 18/34 201138483
按鍵622的前面部623之開口部665。The opening portion 665 of the front portion 623 of the button 622.
......... ，納邵672。收納在電池收 納部672的電池7係與基板迴路62電性連接。 本貫施形態中，於蓋子66的前面部661後面（圖8之下側之 面）設置有複數突起666 (圖8中僅圖示一個），於主體65的底面 部651設置有複數貫通孔656。本實施形態中，#由將螺检（無圖 示）從主體65的底面部651後側（圖8之下側）插通於貫通孔仍6 且將戎螺栓鎖在突起666 ’而將蓋子66安裝於主體65 (又，本實 施形態中，背側蓋67亦設置有貫通孔676。藉由將上述螺检亦插 通於貫通孔676，可將背側蓋67安裝在主體65及蓋子66)。此時 ，設置在蓋子66的前面側支撐體51和設置在主體65的後面側支 撐體52係於挾持薄厚構件3並嵌合之狀態下固定位置。惟，將蓋 子66安裝於主體65的安裝方法並不限定於此，可採用任意安裝 方法。例如，亦可在蓋子66的側面部662後端緣（圖8的下端緣 19/34 201138483 )設近複數L字狀之爪’在主體65的側面部652設置複數孔。於 此情形下，藉由將蓋子66的複數爪分別嵌入主體65的複數孔， 即可將蓋子66安裝於主體65。 基部64係用於對被安裝部（無圖示）安裝之構件。做為被安 裝部’有住宅内的起居室、寢室 '樓梯•走廊等。基部64被安裝 於被安裝部後，與外殼63卡合《藉此，煙感測器6可設置於被安 裝部。 本货施形態之壓電式揚聲器丨，於火災發生時甴煙感測部6丨 偵測到煙時，將基板迴路62的訊號輸出部（無圖示）所輸出的電 子訊號轉換成音聲，輸出用於告知火災這種異常狀態的音聲。做 為用以告知異常狀態而從壓電式揚聲器丨輸出的音聲，有警報音 和警報聲音。從壓電式揚聲器丨輪出的警報音例如有「嗶嗚、嗶 嗚、。畢鳴」的音。從壓電式揚聲器丨輸出的警報聲音例如有「有 火災」的聲音。藉由上述警報音及魏聲音，可通知居住者有火 災發生。又，壓電式揚聲器丨在電池7的剩餘量變少時，輸出「 電池沒電」的告知聲。 又，做為本實施形態之變形例，亦可使用實施形g〗之變形 例的壓電式揚聲^取代實施賴]之壓電式揚聲器丨用 測器6。 θ 二:實施形態1之壓電式揚聲器1 (包含實施形態1之 揚聲器丨)使用在煙感測器6以外的其他警報裝置 «置有動何疑“料如㈣音雜盜裝置 20/34 201138483 (入侵偵測用警報器）等。 再者，貫施形態1之壓電式揚处哭 例的壓電式揚聲器υ亦可使用於=1 (包含實施形態1之變形 其他電氣機器例如有音響機器 “外的”他电氣機器。 及通訊機器（包含電話）等。 樂益、家電製品、車用機器 (實施形態3) 貝她形態3之壓電式揚聲 声史尹】丁门本 〇穴另關貫施形態1之壓雷彳柙 ^】不同之處，係於壓電振動件 4式杨 共振頻率之頻率比為包含！ ： /、振頻率和缚厚構件3的 之壓電式揚聲器i用圖9兑^範圍。以下，就本實施形態 壓之 ，從⑽ 〔干面看的形狀）為圓形狀（環妝彳v ，本^施形態之薄厚構件3亦可為如圖6所示之圓錄:狀）。又 圖9顯不相對於壓電 02之直徑比（ 砬徑01和薄厚構件3的直徑 音壓位準的最的壓電式揚聲器1之 薄厚構件3之直彳 值=」）°右__件2和 和薄厚構们的特料之=化’則壓電振動件2的共振頻率 歐^ 〃振頻率關係隨之變化，因而如圖9所示r， ^式揚聲^的音壓位準亦隨之變化。圖9所中又 由使壓電振動件9沾古尸π 错 變為40 _〜517、 為Μ™11，並將薄厚構件3的直徑改 ‘、’ .咖，而改變壓電振動件2和薄厚構件3之直徑比 21/34 201138483 (02/01),再者^各趋比⑽Μ)巾，以使音壓位準達到最 大的方式將_振鱗2的”及轉構件3轉度 。如上述做法，各直經比⑽01)的峰值音壓 去 厚構件3的直徑為47.3_時，峰值音壓達到最大。又 = 施形態丨之㈣嶋2物购（參關】）哪的功能之 部分説明從略。 由於㈣振崎2的共振解和轉構件3的共振頻率愈接 迎’則壓電式揚聲器！的峰值音壓愈高，因此當壓電振動件）的 直徑為3丨_且轉構件3的直徑為a3 _時，亦即直徑比 )為1.53時，壓電振動件2的共振頻率和薄厚構件3的共振頻率 之頻率比大致成為丨：1。 本實施形狀薄厚構件3的絲鮮狀於包含與壓電振動 件2的共振_之解比為丨：】的_之特定翻内。上述特定 範圍係指能獲得充分大的値做為壓電式揚聲器丨的峰值音壓之範 圍，具體而言係指‘♦值音屢相對於最大谊達到95%以上之範圍。 又’上述特定範圍與壓電振動件2和薄厚構件3之直徑比（OH )的關係，以直徑比（02/0])為].45以上且〗62以下之範圍為佳 。以直徑比（02/01)為〗.48以上且1.6以下之範圍為更佳。並以 直徑比（02/01)為1.5以上且1.55以下之範圍為特佳。又，不是 提高實際的直徑比（02/01)使大於峰值音壓最大値的直徑比（02/0l )而是縮小實際的直徑比，方可使壓電式揚聲器1小型化。 以上，根據本實施形態之壓電式揚聲器丨，藉由將薄厚構件3 22/34 201138483 的共振頻率設定於包含與㈣振祕2的共賴率之頻率比為i /的頻率之特疋範圍内’因而相較於壓電振動件2的共振頻率和 薄厚構件3的共振解之頻率比為上述以外之頻率比的情形，墨 電式揚聲器1的音壓位準就可以更提高。 . (實施形態4) 只施形態4之壓電式揚聲器】實施形態3之壓電式揚聲器1 不同之處’如圖η所不係在前面側支樓體5】及後面側支撐體u :挾持面5〗3 524形成為錐狀。以下，就本實施形態之壓電式揚 聲-】用圖η做制。又’針對與實施形態丨之㈣式揚聲器] 同様的構成要素，係賦予同—符號而省略説明。 ？ 本實施形態之前面側支樓體51及後面側支樓體52具有用以 挾持薄厚構件3的外周部之挾持面犯、524，。前面側支撐體η 的挾持面513和後面側支稽體52的挾持面s24係傾斜形成為錐狀 。亦即，在前_支« 5】錢_支撐體52，於前面側支撐體 51及後關支雜52嵌合的部位形成有麟面513、524，立係 t薄厚構件3的外關躺中心側傾斜。從水平_傾斜角（錐 角）Θ1以2。〜10。為佳。進而以為2。〜4。的範圍為更佳。 本實施形態之薄厚構件3，若以藉由壓電振動件2及薄厚福 的振動所產生聲音㈣出方向做為聲音輸出方向（圖I!之下 向），則係被_上述聲音輸出方向相反的方向（圖u之上方 1突出域細岐《 5】錢_讀體&所 缚厚構件3係於前面側纖51的錐狀之挾持面5]3及後面側 23/34 201138483 撐體52的錐狀之挾持面524，與彈性體4 一起被挾持，因此形成 從外周側朝向中心側傾斜的所謂圆錐型之形狀。本货施形態中， 4厚構件3係朝振動板22中與設置有壓電體2丨的面為相反面之 方向（圆丨丨之上方向）突出且被前面側支撐體51及後面侧支撐 體52所挾持。 以上，根據本赏施形態之壓電式揚聲器丨，藉由在前面惻支撐 體5丨及後面惻支撐體52形成錐狀的挾持面$丨3、524，可使薄厚 構件3形成目錐型之形狀。藉此，相較於糾構件3為平面的情 形，本货她形態-<>壓窀式揚聲器丨的音壓位準可以更提高。 又，本實施_'之㈣式揚㈣】储由如上述在前面側支 撐體Μ及後面側支撐體52形成錐狀的挾持面513、524，益使薄 厚構件3形成為圓錐型之形狀’而可減少連續驅動後的薄厚構件3 之變形。 再者’根據本實施形態之壓電式揚聲器卜薄厚構件3藉由朝 振動板22中與設置有壓電體21的面為相反面之方向（圖卜丨之上 方向）突出，其與薄厚構件3朝振動板22中與設置有壓電體 ㈣之方向（圖υ之下方向）突出的情形相較’壓電式揚聲器^ 的音壓位準可以更提高。 (實施形態5 ) 實施形態5之壓電式揚聲器！與實施形態】之壓電式揚聲器] 不同之處’如圖12所示’係在薄厚構件3具備突部％、幻。以下 ，就本實施形態之壓電式揚聲器丨用圖〗2做説明。又，有關與實 24/34 201138483 施形態1之壓電式揾辣级， ^耳^ 1同様的構成要素，係賦予同一符號而 省略説明。 本實施形態之薄厚構件3係於被前面側支推體51及後面側支 稽體52所挾持的部位具備突部η、33。突部％係設置在與前面 側支撐體Μ制之面（圖12之下面），突部33錄置在與後 面側支撐體52 4晴向之面（圖12之上面）。突部32、33與薄厚 構件Up刀為相同材料。又，有關與實施形態1之薄厚構 件3同様的功能的部分説明從略。 突部32、33的前端面係對於薄厚構件3的内側之面34、^ 王傾斜。藉此，當薄厚構件3被前面側支樓體Μ及後面側支龍 52所挾鱗’购糊_向中心細_所錐型之形 狀。從水平面的傾斜角θ2以2。 為較佳。 叫仏4。的範圍 卿態中’薄厚構件3係朝振動板22中與設置有壓電體 之方向（圖12之上叫突出，且被前面側支撐 月豆51及後面側支撐體52所挾持。 :3顯樹實施形態之_式揚聲器丨輸出的音聲之音塵 之曰&位準特性係將特定電壓 加在壓電式揚聲器i，測定虔電式 子疋电^ 師咖A 电式％聲益】前方位置的音·準的 m果。傾斜角Θ2為2。〜4。。圓】3中 # 3 ^ 伐為比較例亦顯示從薄厚構 Γ:斜(傾斜角02為°。)之構成_電式揚聲器所輸出二 冬之恤準特性(圖13之虛線) _出的曰 所不，本實施形態之 25/34 201138483 壓電·式揚㈣丨她於比較例之壓電式揚料，在細〜3〇〇〇Hz 之間的音壓位準的最大値變高。 以上，本實施形態之壓t式揚聲器丨係於薄厚構件3具備前 端面相對於内側的面34、35呈傾斜之突部32、33，藉由前面側支 撐體5丨及後面側支樓體52挾持設置有突部32、33的部位，可使 薄厚構件3形成_型之形狀。藉此，本實施形態之壓,抵式揚雖 器1與轉構件3為平面的情形她，壓電式揚㈣丨的音壓位 準可以更提高。 (實施形態6) 會施形態6之壓電式揚聲器丨與實施形態3之壓電式揚聲器】 不同之處，如圖14所示係在前面側支撐體5]及後面側支撐體52 的挾持面513、524形成凹凸。以下，就本實施形態之壓電式揚聲 益丨用圖14做説明。又，有關與實施形態】之壓電式揚聲器丨同 様的構成要素，係賦予同一符號而省略説明。 本實施形態之前面側支撐體5丨及後面側支撐體52具備用以 狹持薄厚構件3的外周部之挾持面513、524。前面側支撐體51的 挾持面513和後面側支撐體52的挾持面524係於互相不重疊的位 置形成有凸部514、525。亦即，前面側支撐體51及後面側支撐體 52的嵌合部位係於薄厚構件3的中心和外周部之連結方向，形成 互為不同的凹凸’以使被前面側支撐體51和後面側支撐體52所 挟持著的薄厚構件3從外周側朝向中心側呈傾斜。凸部514、525 係由彈性體所形成之構件。藉由前面侧支撐體51的凸部514的一 26/34 201138483 方比後面側支揮體52的凸部525形成於較内側’可使薄厚構件3 朝後方（圖14B之上方）突出。 本實施形態之薄厚構件3藉由前面側支推體51的凸部別及 後面側支撐體52的凸部525，於被前面側支擇體51和後面側支樓 ' & 52所挾持日〗’形成從外周姻向巾心、側傾斜的所謂圓錐型之形 狀。從水平面之傾斜肖θ3以2。〜10。為佳。進而以2。〜4。的範圍為 較佳。本實施形態中’薄厚構件3係朝振動板a巾與設置有壓電 體=的面為相反面之方向（圖14β之上方向）突出，且被前面側 f撐體51及後面側支樓體52所挾持。又，有關與實施形態i之 薄厚構件3同様的功能之部分説明從略。 以上’根據本實施形態之壓電式揚聲器i，藉由以形成有凸部 514的挾持面513和形成有凸部525的挾持面524來挾持薄厚構件 3 ’可容易使薄厚構件3形成為圓錐型之形狀，因此能容易地提高 壓電式揚聲器1的音壓位準。 又’薄厚構件3從厚度方向（例如圖η、1.2、14之上方向） 所見之形狀亦可為橢圓形狀。 。。貫施形態4〜6之壓電式揚聲器Η系與實施形態3之壓電式揚聲 ☆ 1關地’薄厚構件3的共振頻率亦可在包含與壓電振動件2 的共振頻率之頻率比成為】：1的頻率之特定範圍 β貝糾4〜6之彈性體4亦可不設置在後面側支撐體&和薄 厗構件3之間，而設置在前面側支撐體51和薄厚構件3之間。於 此情形’前_支㈣51相當於第1切體，後_支標體52 27/34 201138483 相當於笫2支撐體。 比施形態3〜6之薄厚構件3亦可如圖7所示具有波紋3丨。薄 厚構件3為如圆7所示具有波紋3丨之構成的一方，比薄厚構件3 不具有波紋31之構成，更能提高音壓。 又’適用實施形態]、4〜6之支撐構件5所構成的支撐構造（ 以前而侧支撐體5丨及後面惻支撐體52挾持之構造）之對象，不 限於上述料構件3,如’亦可㈣支撐構造應用於上述日本特 許第3202169號公報的壓電·振動件之支撐。亦即，實施形態卜3〜6 具備做為選項的薄厚構件3，而薄厚構件3並非必須要件。 t崎g 3〜6之壓電式揚聲器〗亦可使祕實施形態2般的 煙感測器6、統祕賴_ 6以外之其鱗絲置。做為其他 i-m有偵靡疑者人侵時輸出警報音之防盜裝置等。又 實把域3〜6之壓t式揚聲II丨柯使用在警報裝置以外的其 他電氣機器。做為其他蚊機器例如有音響機器、電子樂器、家 電製品、車用機器及通訊機器等。 【圖式簡單說明】 兹就本發明之較佳實施形態更詳細地記述 及優點可參訂述詳細記述及賴而進—錢分轉。-他将放 圖ία及圖m表示實施形態】的壓電式^聲器，圖 面侧支撐體和後關战體為嵌合狀態 支樓體和後面側支撐體嵌合前之剖視圖。見口 5110細面側 圖2係同上之壓電振動件的構成圖。 圖3A及圖3B表示同上之壓雷栌# 冤振動件及溥厚構件，圖3A為 28/34 201138483 固著前的分解立體圖，圖3B為目著後的立體圖。 圖4係表示同上之屋電式揚聲器的音壓位準特性之圖。 圖5係表示同上之壓電式揚聲器的音響阻抗特性之圖。 ”圖6翻上之變形儀壓電振動件·厚構件_著前的分 角午立體圖。 . ® 7A及圖7B表示同上之變形例的壓電式揚聲器，圖7A々 . 前關支撐體和後關讀體為嵌合狀態之剖_，圖7 : 側支撐體和後面侧支樓體嵌合前之剖視圖。 '、 圖8係有關實施形態2之煙❹m的分解立體圖。 圖9係表示實施形態3之壓電式揚聲器的峰值音壓特性 圖1 〇係同上之壓電式揚聲器中的壓電振動件和薄厚 徑比的説明圖。 圖11係表示實施形態4的壓電式揚聲器的重要部分之圖。 圖12A及圖12B表示實施形態5的壓電式揚聲器之重要部分 ’圖12A係前面側支龍和後面側支禮體於敗合前之剖視圖，= 12B係前面側支撐體和後面側支撐體為嵌合狀態之剖視圖。 圖13係表示同上之壓電式揚聲器的音壓位準特性之圖。 圖14A及圖14B表示實施形態6的壓電式揚聲器之重要部分 ，圖14A係前面側支撐體和後面側支撐體於嵌合前之剖視圖，圖 14B係前面側支撐體和後面側支撐體為嵌合狀態之剖視圖。 【主要元件符號說明】 ' 1 壓電式揚聲器 2 壓電振動件 3 溥厚構件 4 彈性体 5 支撐構件 29/34 201138483 6 煙感测器 21 壓觉體 22 振動板 23 ' 24 導線 25 連接器 31 波紋 32 ' 33 突部 34 ' 35 面 51 前面侧支撐體 52 後面側支撐體 61 煙感測部 62 基板迴路 63 外殼 64 基部 65 主體 66 蓋子 67 背側蓋 511 後面 512 突出部 513 、 524 挾持部 514 ' 525 凸部 521 前面 522 凹部 523 載置面 611 光學基台 612 防蟲網 621 安裝基板 622 按鍵 623 、 661 前面部 651 ' 671 底面部 30/34 201138483 652 > 662 側面部 653、654、665 開口部 655 開口窗 663 音孔 664 區域 656 、 676 貫通孔 666 突起 672 電池收納部 31/34........., Nashao 672. The battery 7 housed in the battery receiving portion 672 is electrically connected to the substrate circuit 62. In the present embodiment, a plurality of protrusions 666 (only one of which is shown in FIG. 8) are provided behind the front surface portion 661 of the cover 66 (the surface on the lower side in FIG. 8), and a plurality of through holes are provided in the bottom surface portion 651 of the main body 65. 656. In the present embodiment, # is inserted from the rear side (the lower side in Fig. 8) of the bottom surface portion 651 of the main body 65 into the through hole 6 and the boring bolt is locked to the projection 666' by the screw test (not shown). 66 is attached to the main body 65. (In the present embodiment, the back side cover 67 is also provided with a through hole 676. By inserting the screw test into the through hole 676, the back side cover 67 can be attached to the main body 65 and the cover. 66). At this time, the front side support body 51 provided on the cover 66 and the rear side support body 52 provided on the main body 65 are fixed in a state in which the thin member 3 is held and fitted. However, the method of attaching the cover 66 to the main body 65 is not limited thereto, and any mounting method may be employed. For example, a plurality of L-shaped claws may be provided at the rear end edge of the side surface portion 662 of the cover 66 (the lower end edge 19/34 201138483 of Fig. 8). A plurality of holes are provided in the side surface portion 652 of the main body 65. In this case, the cover 66 can be attached to the main body 65 by inserting the plurality of claws of the cover 66 into the plurality of holes of the main body 65, respectively. The base portion 64 is a member for attaching to a mounted portion (not shown). As the installation department, there is a living room, a bedroom, a staircase, a hallway, etc. in the house. After the base portion 64 is attached to the mounted portion, it is engaged with the outer casing 63. Thereby, the smoke sensor 6 can be disposed at the portion to be mounted. In the piezoelectric speaker module of the present embodiment, when the smoke detecting unit 6 detects smoke, the electronic signal output from the signal output unit (not shown) of the substrate circuit 62 is converted into a sound. , outputting a sound for informing the abnormal state of the fire. As the sound output from the piezoelectric speaker 用以 to inform the abnormal state, there are an alarm sound and an alarm sound. The alarm sounds that are emitted from the piezoelectric speaker are, for example, "哔呜, 哔 呜, . Bi Ming". The alarm sound output from the piezoelectric speaker 例如 is, for example, a "fire" sound. With the above alarm sound and Wei sound, the occupant can be notified of the fire. Further, when the remaining amount of the battery 7 is reduced, the piezoelectric speaker 输出 outputs a notification sound of "the battery is dead". Further, as a modification of the embodiment, a piezoelectric speaker unit 6 of a modified example of the embodiment of the present invention may be used instead of the piezoelectric speaker unit 6 of the embodiment. θ 2: The piezoelectric speaker 1 of the first embodiment (including the speaker 实施 of the first embodiment) uses an alarm device other than the smoke sensor 6 «has any doubts about the material" such as (four) sound pirate device 20/34 201138483 (intrusion detection alarm), etc. Further, the piezoelectric speaker 贯 of the piezoelectric type of the crying example of the first embodiment can be used for =1 (including the deformation of the first embodiment, other electrical equipment, for example Audio equipment "outside" his electrical equipment. And communication equipment (including telephone), etc. Le Yi, home appliances, car equipment (Embodiment 3) Bell her form 3 piezoelectric speaker sound Shi Yin] Dingmen The difference between the frequency and the resonance frequency of the piezoelectric vibrating member is that the frequency ratio of the resonant frequency of the piezoelectric vibrating member is: !, the vibration frequency and the pressure of the thick member 3; The electric speaker i is in the range of Fig. 9. Hereinafter, in the present embodiment, the shape (10) (the shape of the dry surface) is rounded (the ring shape 彳v, and the thin member 3 of the present embodiment may be as Figure 8 shows the round record: shape). Figure 9 shows the diameter ratio of the piezoelectric 02 (the diameter of 01 and thin) The diameter of the member of the piezoelectric piezoelectric speaker 1 of the member 3 is the direct value of the thin member 3 of the piezoelectric speaker 1 = "), the right __ member 2 and the thin and thick members of the special material = the piezoelectric vibrating member The resonance frequency of 2 has a relationship with the frequency of the oscillation, so that the sound pressure level of r, ^ type of sound is also changed as shown in Fig. 9. In Fig. 9, the piezoelectric vibrating member 9 is changed to 40 _ to 517, which is Μ TM11, and the diameter of the thin and thick member 3 is changed to ', ', and the piezoelectric vibrating member 2 is changed. And the thickness ratio of the thin and thick member 3 is 21/34 201138483 (02/01), and then the ratio is (10) Μ), so that the sound pressure level is maximized, the _zheng scale 2 and the rotating member 3 are rotated. As described above, when the peak sound pressure of each straight-through ratio (10) 01) is 47.3 mm, the peak sound pressure reaches the maximum. And = the form (4) 嶋 2 (purchase) Part of the description of the function is omitted. Since (4) the resonance solution of the Zhenshen 2 and the resonance frequency of the rotating member 3 are more welcoming, the piezoelectric microphone speaker has a higher peak sound pressure, so when the piezoelectric vibrating member has a diameter of 3 When the diameter of the rotating member 3 is a3 _, that is, the diameter ratio is 1.53, the frequency ratio of the resonant frequency of the piezoelectric vibrator 2 and the resonant frequency of the thin member 3 is approximately 丨: 1. The shape of the present embodiment is thin. The wire shape of the member 3 is within a specific turn of the _ containing the resonance ratio of the piezoelectric vibrating member 2. The above specific range refers to the energy A sufficiently large 値 is used as the range of the peak sound pressure of the piezoelectric speaker ,, specifically, the range of the ♦ value is more than 95% relative to the maximum yi. 2, the relationship between the diameter ratio (OH) of the thin and thick members 3, the diameter ratio (02 / 0)) is preferably more than .45 and more than 62. The diameter ratio (02/01) is 〖.48 or more. The range of 1.6 or less is more preferable, and the diameter ratio (02/01) is particularly preferably 1.5 or more and 1.55 or less. Further, the actual diameter ratio (02/01) is not increased to be greater than the peak sound pressure. The diameter ratio (02/0l) is reduced by the actual diameter ratio, so that the piezoelectric speaker 1 can be miniaturized. According to the piezoelectric speaker of the present embodiment, the thin-thickness member 3 22/34 201138483 The resonance frequency is set within a characteristic range including the frequency ratio of the frequency of the resonance of the (4) vibration 2, and thus the resonance frequency of the piezoelectric vibrator 2 and the frequency of the resonance solution of the thin member 3 The sound pressure level of the ink-electric speaker 1 can be further improved than the frequency ratio other than the above. (Embodiment 4) Only the piezoelectric speaker of the fourth embodiment is applied. The piezoelectric speaker 1 of the third embodiment differs from the front side support body 5 as shown in Fig. η and the rear side support body u. The holding surface 5 〗 3 524 is formed in a tapered shape. Hereinafter, the piezoelectric type sounding of the present embodiment is made by using the figure η, and the constituent elements of the "fourth type speaker" of the embodiment are the same. The same reference numerals are given to the same reference numerals. In the present embodiment, the front side side wall body 51 and the rear side side building body 52 have gripping surfaces for gripping the outer peripheral portion of the thin member 3, 524. The front side support body η The grip surface 513 of the grip surface 513 and the rear side branch body 52 is inclined to be tapered. That is, in the front-supporting section 5, the support body 52 is formed with the linings 513 and 524 at the portions where the front side support body 51 and the rear side support body 52 are fitted, and the vertical t-thickness member 3 is lie outside. The center side is inclined. From the horizontal_tilt angle (taper angle) Θ1 to 2. ~10. It is better. Further thought is 2. ~4. The range is better. In the thin-walled member 3 of the present embodiment, when the sound (4) direction of the sound generated by the vibration of the piezoelectric vibrator 2 and the thin blessing is used as the sound output direction (Fig. I! downward direction), the sound output direction is _ In the opposite direction (1 above the figure 1), the thickened member 3 is attached to the tapered holding surface 5]3 of the front side fiber 51 and the rear side 23/34 201138483 The tapered grip surface 524 of the body 52 is held together with the elastic body 4, so that a so-called conical shape is formed which is inclined from the outer peripheral side toward the center side. In the present embodiment, the 4-thick member 3 is directed toward the vibrating plate 22 The direction in which the surface on which the piezoelectric body 2 is provided is opposite to the surface (the direction above the circle) protrudes and is held by the front side support body 51 and the rear side support body 52. The electric speaker 丨 can form the tapered member 3 into a tapered shape by forming a tapered holding surface 丨3, 524 on the front 恻 support 5 丨 and the rear 恻 support 52. The correcting member 3 is a flat case, and the form of the goods is -<> the sound pressure of the compressed speaker In addition, the fourth embodiment of the present invention has a tapered holding surface 513, 524 formed on the front side support body and the rear side support body 52 as described above, so that the thin and thick member 3 is formed. The shape of the conical shape can reduce the deformation of the thin member 3 after the continuous driving. Further, the piezoelectric speaker according to the present embodiment has a thin thickness member 3 which is provided with the piezoelectric body 21 in the vibrating plate 22. The surface is protruded in the opposite direction (the direction above the image), which is compared with the case where the thin member 3 protrudes toward the vibration plate 22 in the direction in which the piezoelectric body (four) is disposed (the direction below the figure). The sound pressure level of the speaker ^ can be further improved. (Embodiment 5) The piezoelectric speaker of the fifth embodiment is different from the piezoelectric speaker of the embodiment. (3) The piezoelectric type speaker of the present embodiment is described with reference to Fig. 2. Further, regarding the piezoelectric type of the form 1 and the actual 24/34 201138483, the ear is ^ The constituent elements of the same reference numerals are denoted by the same reference numerals and will not be described. The thin member 3 of the present embodiment is provided with the protrusions η and 33 at the portion held by the front side support body 51 and the rear side support body 52. The protrusion % is provided on the side of the front side support body ( In the lower part of Fig. 12, the projection 33 is placed on the surface of the rear side support body 542 (the upper surface of Fig. 12). The projections 32 and 33 are made of the same material as the thin and thick member Up. Further, related to the embodiment The description of the function of the thin and thick member 3 of the first member is omitted. The front end faces of the projections 32 and 33 are inclined with respect to the inner face 34 of the thin member 3, and the king is inclined. Μ and the back side of the dragon 52 挟 scale 'buy _ to the center thin _ the shape of the cone. The inclination angle θ2 from the horizontal plane is 2. It is better. Call 仏 4. In the range of the state, the thin-thick member 3 is oriented in the direction of the vibrating plate 22 and the piezoelectric body (the upper portion of Fig. 12 is protruded, and the front side supports the moon bean 51 and the rear side support body 52. :3 In the implementation mode of the tree, the sound of the sound of the speaker is outputted. The level of the sound is applied to the piezoelectric speaker i, and the voltage is measured.益] The sound of the front position is the quasi-m fruit. The inclination angle Θ2 is 2. ~4. The circle] 3 in #3 ^ The cutting example is also shown from the thin thickness: the inclination (inclination angle 02 is °.) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The maximum enthalpy of the sound pressure level between the fine and 3 Hz is higher. The pressure t-type speaker of the present embodiment is such that the thin-walled member 3 has the front end surface with respect to the inner faces 34 and 35. The inclined protrusions 32 and 33 can be thinned by the front side support body 5丨 and the rear side branch body 52 holding the protrusions 32 and 33. The member 3 is formed in a shape of _. Thus, in the case of the pressure of the present embodiment, the piezoelectric device 1 and the rotating member 3 are flat, and the piezoelectric pressure level of the piezoelectric type (four) 可以 can be further improved. Aspect 6) The piezoelectric speaker of the sixth embodiment is different from the piezoelectric speaker of the third embodiment. The difference between the piezoelectric speaker and the piezoelectric speaker of the third embodiment is that the front side support body 5] and the rear side support body 52 are held by the support surface 513 as shown in FIG. In the following description, the piezoelectric speaker type of the present embodiment will be described with reference to Fig. 14. The same components as those of the piezoelectric speaker according to the embodiment will be denoted by the same reference numerals and will not be described. In the present embodiment, the front side support 5A and the rear side support 52 are provided with gripping surfaces 513 and 524 for narrowing the outer peripheral portion of the thin member 3. The holding surface 513 and the rear side support 52 of the front side support 51 are provided. The holding surfaces 524 are formed with convex portions 514 and 525 at positions that do not overlap each other. That is, the fitting portions of the front side support body 51 and the rear side support body 52 are connected to the center and the outer peripheral portion of the thin member 3. , forming mutually different bumps 'to make the front The thin member 3 held by the side support 51 and the rear side support 52 is inclined from the outer peripheral side toward the center side. The convex portions 514 and 525 are members formed of an elastic body. The convex portion of the front side support body 51 is provided. A 26/34 201138483 of 514 is formed on the inner side than the convex portion 525 of the rear side support 52. The thick member 3 can be protruded rearward (above the upper portion of Fig. 14B). The thin member 3 of the present embodiment is provided by the front side The convex portion of the supporting body 51 and the convex portion 525 of the rear side supporting body 52 are formed by the front side supporting body 51 and the rear side branch '& 52' from the outer circumference to the center of the towel The so-called conical shape of the slope. The inclination from the horizontal plane is θ3 to 2. ~10. It is better. Further by 2. ~4. The range is better. In the present embodiment, the thin-thickness member 3 protrudes in a direction opposite to the surface on which the piezoelectric plate is provided (the direction in which FIG. 14 is the upper side), and is supported by the front side f support 51 and the rear side branch. Body 52 is reserved. Further, the description of the functions of the thin-thickness member 3 of the embodiment i will be omitted. According to the piezoelectric speaker i of the present embodiment, the thin member 3 can be easily formed into a conical shape by holding the thin member 3' by the holding surface 513 on which the convex portion 514 is formed and the holding surface 524 on which the convex portion 525 is formed. The shape of the type can easily increase the sound pressure level of the piezoelectric speaker 1. Further, the shape of the thin member 3 as seen from the thickness direction (e.g., in the directions of η, 1.2, and 14) may be an elliptical shape. . . The piezoelectric speaker system of the form 4 to 6 and the piezoelectric speaker of the third embodiment ☆ 1 The ground resonance frequency of the thin-thickness member 3 can also be included in the frequency ratio of the resonance frequency of the piezoelectric vibrating member 2 The elastic body 4 which is a specific range of the frequency of 1 is not disposed between the rear side support body & and the thin member 3, but is disposed between the front side support body 51 and the thin thickness member 3. between. In this case, the front_branch (four) 51 corresponds to the first cut body, and the rear_branch body 52 27/34 201138483 corresponds to the 笫2 support. The thin and thick member 3 of the embodiment 3 to 6 may have a corrugation 3 如图 as shown in FIG. The thin member 3 has one of the corrugated 3 turns as shown by the circle 7, and has no corrugation 31 than the thick member 3, and the sound pressure can be further improved. Further, the object of the support structure (the structure in which the side support body 5丨 and the rear side support body 52 are held by the support member 5) of 4 to 6 is not limited to the above-described material member 3, such as 'also The (four) support structure is applied to the support of the piezoelectric vibrating member of the above-mentioned Japanese Patent No. 3202169. That is, the embodiment 3 to 6 has the thin member 3 as an option, and the thin member 3 is not essential. The t-grain g 3~6 piezoelectric speaker can also be used to make the smoke sensor 6 and the other grammars other than the 6th. As other i-m, there are anti-theft devices that detect the alarm sound when the suspect is invaded. In addition, the pressure of the type 3 to 6 is used. Other electric machines other than the alarm device are used. As other mosquito machines, there are, for example, audio equipment, electronic musical instruments, home electric appliances, vehicle equipment, and communication equipment. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in more detail with reference to the preferred embodiments of the present invention. - The piezoelectric type sounder in which the figure ία and the figure m are shown in the embodiment, the front side support body and the rear side warfare body are in a fitted state, and the cross-sectional view of the support body and the rear side support body before fitting. See the mouth of the 5110 fine side. Figure 2 is a structural diagram of the piezoelectric vibrating element of the same. 3A and 3B show the same type of pressure 栌# 冤 vibrating member and thick member, Fig. 3A is an exploded perspective view of 28/34 201138483 before fixing, and Fig. 3B is a perspective view after looking. Fig. 4 is a view showing the sound pressure level characteristics of the electric speaker of the same type. Fig. 5 is a view showing the acoustic impedance characteristics of the piezoelectric speaker of the above. Fig. 6 shows the piezoelectric vibrating piece and the thick member of the deformed instrument shown in Fig. 6. The 7D and 7B show the piezoelectric speaker of the modification of the above, Fig. 7A. The front support and FIG. 7 is a cross-sectional view of the side support body and the rear side branch body before fitting. FIG. 8 is an exploded perspective view of the soot m of the second embodiment. FIG. The peak sound pressure characteristic of the piezoelectric speaker of the third embodiment is shown in Fig. 1. FIG. 11 is a view showing the piezoelectric speaker of the piezoelectric speaker of the fourth embodiment. Fig. 12A and Fig. 12B show an important part of the piezoelectric speaker of the fifth embodiment. Fig. 12A is a cross-sectional view of the front side dragon and the rear side ball body before the defeat, and the 12B front side support body Fig. 13 is a cross-sectional view showing the state of sound pressure level of the piezoelectric speaker of the same type. Fig. 14A and Fig. 14B are diagrams showing an important part of the piezoelectric speaker of the sixth embodiment. 14A front side support and rear side support Fig. 14B is a cross-sectional view showing a state in which the front side support body and the rear side support body are fitted. [Main element symbol description] ' 1 Piezo speaker 2 Piezoelectric vibrating member 3 Thick member 4 Elastic body 5 Support member 29/34 201138483 6 Smoke sensor 21 Pressure absorbing body 22 Vibration plate 23 ' 24 Wire 25 Connector 31 Corrugation 32 ' 33 Projection 34 ' 35 Face 51 Front side support body 52 Rear side support body 61 Smoke sensing portion 62 Substrate circuit 63 Housing 64 Base portion 65 Main body 66 Cover 67 Back side cover 511 Rear surface 512 Projection 513, 524 Hold portion 514 '525 Projection portion 521 Front surface 522 Rectangular portion 523 Mounting surface 611 Optical base 612 Insect net 621 Mounting substrate 622 Button 623, 661 Front portion 651 '671 bottom portion 30/34 201138483 652 > 662 side portion 653, 654, 665 opening portion 655 opening window 663 sound hole 664 area 656, 676 through hole 666 protrusion 672 battery storage portion 31/34