九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種具揚聲器功能的裱框裝置，特別 疋指一種應用壓電材料板以揚聲的具揚聲器功能的樣框裝 置。 【先前技術】 傳統的揚聲器是利用電磁動力式激震器來推動一個震 動膜，以達到揚聲的目的，通常會配備一個音箱來幫助揚 聲’然而此音箱的體積龐大，對於一些對體積要求度較高 的產时來說’較不適用；因此，所佔體積較小的平面揚聲 态（panel-form loudspeaker)就因應而生。 參閱圖1，圖i是中華民國專利第1246349號所揭露的 *種掛畫式平面揚聲器i，由於是以掛畫的型式存在，故揚 聲器採用體積較小的平面揚聲器。此掛畫式平面揚聲器1 要匕括框架11、一揚聲板U、-電磁動力式激震器13 及一柔性懸吊元件14。揚聲板12上畫有圖畫，如山水畫、 世界名畫，激震器13是設置於揚聲板12的後方，當其通 電時會產生震動’此震動推動揚聲板12以達到揚聲的目的 ’而措柔性懸吊元件14可將此掛畫式平面揚聲器1懸吊於 牆壁上。 雖然此掛晝式平面揚聲器1已應用平面揚聲器來縮小 體積’然而’由圖2的剖面圖可看出，激震器13仍佔去偌 大的體積（主要是厚度），再者，揚聲板12上的圖畫是以手 、會或黏貼的方式形成，費工而且用黏貼的方式可能產生畫 5 面不平的缺點。 【發明内容】 因此’本發明之目的’即在提供一種應用壓電材料板 以縮小體積且可於壓電材料板上印刷圖案的具揚聲器功能 的裱框裝置。 於是’本發明具揚聲器功能的裱框裝置是包含一框架 、一壓電材料板及一背板。 框架具有一封閉的邊框。 壓電材料板是容置於框架内並固定於邊框上。 者板是谷置於框架内並固定於邊框上’以與壓電材料 板及框架共同形成一共振腔。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖3 '圖4與圖5，本發明具揚聲器功能的樣框裝 置2之設計概念是將揚聲器與裱框作結合，裱框包括掛於 牆上或擺设於桌上的畫框、相框等種類。本發明的較佳實 施例包含一框架3、一透明基板4、一壓電材料板5及一背 板6，圖3是本較佳實施例的正視圖，圖4則為背視圖。 框架3概呈中空矩形，其材質可為木頭、塑膠、金屬 或奴纖維，具有一封閉的邊框31。背板6及透明基板4由 框架3的刖後夾没於邊框3 1的内緣而固定於該框架3之邊 框31上’並與邊框31共同形成一封閉空間。 1342164 ' 透明基板4呈矩形，其材質可為玻璃、塑膠等透明材 質。 壓電材料板5是容置於框架3之封閉空間内並固定於 邊框31上’且位於透明基板4與背板6之間，其主要材質 為鎳鐵合金或銅錫合金’其上連接有二條導線（圖未示），該 二條導線由壓電材料板5延伸至框架3外，當聲音訊號由 導線傳入時，由於壓電作用，會使壓電材料板5振動而發 出聲音，再透過由背板6、壓電材料板5及框架3所共同形 • 成的一共振腔7將聲音傳出去。 值得一k的疋，壓電材料板5朝向透明基板4的表面 上形成有圖案8，此圖案8可以由雷射雕刻、網版印刷 '移 印印刷、雷射印刷以及其它耐震的繪畫或印刷技術所形成 〇 另外，框架3之邊框31上還設置有一掛勾9，以讓使 用者掛置於牆壁上，而邊框31旁的電連接器32是與上述 的兩導線電連接，其可供使用者插設輸人聲音訊號的電連 ® 接器。 最後，本發明還可包含一個無線通訊模組（圖未示），此 無線通訊模組與前述的兩導線電連接，用以接收外部以無 線通訊方式傳來的聲音訊號，以無線通訊的方式接收聲音 訊號可省去一些不必要的電線，以增加美觀。 在本較佳實施例中，框架3、透明基板4、壓電材料板 5及背板6的形狀皆為矩形，然而熟知此技藝之人士，亦可 利用不同形狀的相同構件(如圓形、三角形、橢圓形)，達到 上342164 相同的效果，故㈣等構件在形狀±的變化，㈣本創作 所涵蓋的範圍。 综上所述，本發明藉由壓電材料板5使裱框可以兼具 揚聲器的功能，同時壓電材料板5所佔的體積不大，且^ 直接在其表面可雷射雕刻或印刷圖案’故確實能達成本發 明之目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一正視圖，說明習知掛畫式平面揚聲器的結構 ， 圖2是一剖視圖，說明習知掛畫式平面揚聲器的結構 9 圖3是正視圖，說明本發明的一較佳實施例的結構 1 圖4是一背視圖，說明該較佳實施例的結構：及 圖5疋一圖4之V-V剖視圖，說明該較佳實施例的結 構。 1342164 【主要元件符號說明】 2 具揚聲器功能的裱框裝置 5 壓電材料板 3 框架 6 背板 31 邊框 Ί 共振腔 32 電連接器 8 圖案 4 透明基板 9 掛勾IX. Description of the Invention: [Technical Field] The present invention relates to a frame device having a speaker function, and more particularly to a frame device having a speaker function using a piezoelectric material plate to raise sound. [Prior Art] The traditional speaker uses an electromagnetic power type shock absorber to push a diaphragm to achieve the purpose of sound. Usually, a speaker is provided to help the speaker. However, this speaker is bulky and requires some volume. Higher yields are 'less suitable'; therefore, the smaller panel-form loudspeakers are produced in response. Referring to Fig. 1, Fig. 1 is a picture-type planar speaker i disclosed in the Republic of China Patent No. 1246349. Since it is in the form of a hanging picture, the speaker uses a small-sized planar speaker. The hanging picture type flat speaker 1 comprises a frame 11, a speaker board U, an electromagnetic power type vibration exciter 13 and a flexible suspension element 14. The speaker board 12 is painted with pictures, such as landscape paintings and world famous paintings. The shock absorber 13 is disposed at the rear of the speaker board 12, and when it is energized, vibration is generated. This vibration promotes the speaker board 12 to achieve the purpose of raising the sound. The flexible suspension element 14 can suspend the hanging picture plane speaker 1 on the wall. Although the hanging type flat speaker 1 has applied a flat speaker to reduce the volume 'however', as can be seen from the sectional view of Fig. 2, the shock absorber 13 still occupies a large volume (mainly thickness), and further, the speaker board 12 The picture on the top is formed by hand, meeting or pasting. It is laborious and the way of sticking may cause the disadvantage of drawing 5 faces. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a speaker-equipped frame device using a piezoelectric material plate to reduce the volume and print a pattern on a piezoelectric material plate. Thus, the frame device having the speaker function of the present invention comprises a frame, a piezoelectric material plate and a back plate. The frame has a closed border. The piezoelectric material plate is housed in the frame and fixed to the frame. The plate is placed in the frame and fixed to the frame to form a resonant cavity with the piezoelectric plate and the frame. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to FIG. 3 ' FIG. 4 and FIG. 5 , the design concept of the frame device 2 with speaker function of the present invention is to combine the speaker and the frame, and the frame includes a picture frame or a picture frame hung on the wall or placed on the table. And so on. The preferred embodiment of the present invention comprises a frame 3, a transparent substrate 4, a piezoelectric material plate 5 and a backing plate 6, and Figure 3 is a front view of the preferred embodiment, and Figure 4 is a rear view. The frame 3 has a hollow rectangular shape and is made of wood, plastic, metal or slave fiber and has a closed bezel 31. The back plate 6 and the transparent substrate 4 are fixed to the side frame 31 of the frame 3 by the rear edge of the frame 3 and are not clamped to the inner edge of the frame 3 1 and form a closed space together with the frame 31. 1342164 'The transparent substrate 4 is rectangular and can be made of transparent materials such as glass and plastic. The piezoelectric material plate 5 is received in the closed space of the frame 3 and fixed on the frame 31 and located between the transparent substrate 4 and the back plate 6. The main material is nickel-iron alloy or copper-tin alloy. a wire (not shown) extending from the piezoelectric material plate 5 to the outside of the frame 3. When the sound signal is transmitted from the wire, the piezoelectric material plate 5 vibrates to emit sound due to the piezoelectric action, and then transmits A resonant cavity 7 formed by the backing plate 6, the piezoelectric material plate 5 and the frame 3 transmits the sound. It is worthy of a 疋, the piezoelectric material plate 5 is formed with a pattern 8 on the surface of the transparent substrate 4, which can be laser-engraved, screen-printed, pad-printed, laser-printed, and other shock-resistant painting or printing. In addition, the frame 31 of the frame 3 is further provided with a hook 9 for the user to hang on the wall, and the electrical connector 32 beside the frame 31 is electrically connected to the above two wires, which are available for The user plugs in the connector of the input sound signal. Finally, the present invention may further comprise a wireless communication module (not shown), the wireless communication module is electrically connected to the two wires, for receiving an external sound signal transmitted by wireless communication, in a wireless communication manner. Receiving sound signals saves unnecessary wires to increase aesthetics. In the preferred embodiment, the frame 3, the transparent substrate 4, the piezoelectric material plate 5, and the back plate 6 are all rectangular in shape, but those skilled in the art can also utilize the same members of different shapes (such as a circle, Triangle, ellipse), achieves the same effect as 342164, so (four) and other components in the shape ± change, (d) the scope covered by this creation. In summary, the present invention allows the frame to function as a speaker by the piezoelectric material plate 5, while the piezoelectric material plate 5 occupies a small volume, and can directly be laser engraved or printed on the surface thereof. 'It is indeed possible to achieve the object of the present invention. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are all It is still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing the structure of a conventional hanging picture type flat speaker, and FIG. 2 is a cross-sectional view showing the structure of a conventional hanging picture type flat speaker. FIG. 3 is a front view showing the present invention. FIG. 4 is a rear view showing the structure of the preferred embodiment: and the VV cross-sectional view of FIG. 5A and FIG. 4, illustrating the structure of the preferred embodiment. 1342164 [Description of main component symbols] 2 truss device with speaker function 5 Piezoelectric material plate 3 Frame 6 Back plate 31 Frame Ί Resonant cavity 32 Electrical connector 8 Pattern 4 Transparent substrate 9 Hook