M399450 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種具有不共用接地電極之圓環壓電變壓器， 其特別利用環形間隙用以内外電極之電性區隔，其中該内電極與 該外電極係為該輸入埠之電性接地與該輸出埠之電性接地，形成 不共用接地電極之結構，使其具有良好電性隔離與任意調整電壓 增益之壓電變壓器。 【先前技術】 壓電性自被發現之後，雖然有諸多學者就其原理特性進行分 析研究，然壓電材料之實用化直到西元1917年間方由A Langevin 以石英及鋼材組合成三明治型換能器始得以實現。壓電材料種類 則大致可分為單晶、薄膜、聚合物、陶瓷的鍅鈦酸錯(Lead Titanate，PbZrTi03, PZT)與複合材料類(Composite Material)等，上 • 述的各種材料均有其優缺點。但總體分析而言，壓電陶瓷材料因 '具有製造谷易，可多種形式設計的特點，其中鉛鈦酸錯因其壓電 活性(Piezoelectric Activity)良好、耐酸鹼且塑形性佳而居目前壓電 元件材料之主流。 以往，變壓器能量的轉換是由電能轉換成磁能再由磁能轉換 成電能。自材料壓電性被發現及Rosen提出壓電變壓器之後，變壓 器能量轉換方式有了重大突破，電能可藉由機械的振動來傳遞； 倘若壓電變壓器之輸入端即致動側饋八近於諧振頻率之交流弦波 M39.9450 電壓，因逆壓·激發壓賴料聽，復因正壓電效應關係， 令共振之應力形變機械能轉換為魏崎出端即換_輸出 成變壓效果。M399450 V. New Description: [New Technology Field] This paper is about a ring-shaped piezoelectric transformer with a common grounding electrode. It uses an annular gap for the electrical separation of the inner and outer electrodes. The external electrode is an electrical ground of the input port and an electrical ground of the output port, forming a structure that does not share the ground electrode, and has a good electrical isolation and a piezoelectric transformer with an arbitrary adjustment voltage gain. [Prior Art] Since the piezoelectricity was discovered, although many scholars have analyzed its principle characteristics, the practical application of piezoelectric materials was performed by A Langevin in combination with quartz and steel into sandwich transducers in 1917. It was realized. The types of piezoelectric materials can be roughly classified into single crystal, thin film, polymer, ceramic, lead Titanate (PbZrTi03, PZT) and composite materials (Composite Material), etc. Advantages and disadvantages. However, in terms of overall analysis, piezoelectric ceramic materials have the characteristics of being designed in various forms, among which the lead-titanate acid is good because of its good piezoelectric activity (Piezoelectric Activity), acid and alkali resistance and good shape. The current mainstream of piezoelectric component materials. In the past, the conversion of transformer energy was converted from electrical energy into magnetic energy and then from magnetic energy into electrical energy. Since the piezoelectricity of the material was discovered and Rosen proposed the piezoelectric transformer, the transformer energy conversion method has made a major breakthrough, and the electrical energy can be transmitted by mechanical vibration; if the input end of the piezoelectric transformer is actuated, the side feedback is nearly close to the resonance. The frequency of the AC sine wave M39.9450 voltage, due to the reverse pressure and excitation pressure, the complex piezoelectric effect, the resonance of the stress deformation mechanical energy is converted to Wei Qi out of the end _ output into a transformation effect.
相較之下壓電變廢器升壓比可以由不同形式設計將可以達 到高電壓’並有高電能轉換效率（約95%)，而壓電變壓器口· 要粉末難極化颜’構成财㈣簡單，且重餘，科像; 統變壓器因過度使用導致發熱自燃或在運作時產生磁場而影響 電器。也因為上述之優點’若祕配物_路以適應壓電變 壓器之殊異雜’將可鱗代電賴顧敏換魏之傳統磁芯 繞線式髓H，改善其帽於電轉絲置鼓重量及體積盘因 漏磁所致能量損失及電磁干擾等問題，即可用在電器應用上。％ 年代美國和日本把壓電Μιι翻在提供黑白電視機的陰極射 線管所需之高電壓，80年代壓電變鞋逐_在點亮日光燈燈管 的啟動器上’ 80年代末期多家日本公司把魏變壓㈣在提供液 晶勞幕的CCFL燈管’近年來流行的筆記型電腦其液晶螢幕背光 模組也是利用壓電變壓器來提供電源。 根據習知技術，可見於國際學術期形pn ;々pi _ W 43, ΡΡ· 35_〇,細4.，標題為 “M_ayered Unip_In contrast, piezoelectric booster boost ratios can be designed in different forms to achieve high voltages and have high power conversion efficiency (about 95%), while piezoelectric transformers have to be difficult to polarize. (4) Simple, and heavy, the image; the transformer is caused by excessive use of heat or spontaneous combustion or generates a magnetic field during operation that affects the appliance. Also because of the above advantages, 'If the secrets _ road to adapt to the special transformer of the piezoelectric transformer' will be able to scale the electricity to Gu Min to change the traditional core winding type of the core H, improve its cap on the electric rotating wire drum Weight and volume discs can be used in electrical applications due to energy loss and electromagnetic interference caused by magnetic flux leakage. In the United States and Japan, the piezoelectric Μι turned over the high voltage required to provide a cathode ray tube for black and white televisions. In the 1980s, the piezoelectric sneakers were turned on _ in the starter of the fluorescent tube. 'A few Japanese in the late 1980s The company changed the pressure of Wei (four) in the CCFL lamp that provides LCD screens. In recent years, the popular notebook computer LCD screen backlight module also uses piezoelectric transformers to provide power. According to the prior art, it can be found in the international academic period pn; 々pi _ W 43, ΡΡ· 35_〇, fine 4., entitled "M_ayered Unip_
Pi_leetrie T_f_efs”（單—醜多層壓電麵扑在該文獻 中’其輸出端與輸入端之接地面為共面，易造成極化時的不均勾 以及對於長期使用之電器在未電性隔離而容易造成電器的損害。 M399450 【新型内容】 鑑於以上習知技術之問題，本創作提供一種具有不共用接地 電極之圓環壓電變壓ϋ，壓電賴||_式與體較元件以兩側 電極夾住壓電材料的結構她，目此可以彻體 手利用體聲波能量傳輸_互__而成，可廣泛應用於不同 的聲波元件。 為達上述之目的’本創作提供—種具有不制接地電極之圓 環壓電變壓器’其包含—壓電基板；一上電極層；一下電極層，其 中上電極層’以第—娜間隙用為電性區隔，形成第一内電極 與第-外電極’下電極層，以第二環形_:料電性區隔，形成 第二内電極與第二外電極。 根據本創作之-特徵，該壓電基板係由單一或複數層所構成。 根據本創作之-特徵，該壓電基板係選自賴電陶究 二板石*她鐘、銳酸鐘、氮化紹、氧化辞、氮化嫁、無錯 壓電陶錄板、化合_電基板及壓制:絲板之一。 根據本創作之—贿，該上電極層_下電極狀材料係選 自銀、銷、叙、德、私 一 ^ 、銅、金、鉻、釔鋇銅氧與氧化銦錫所組 成族群中之一種材料。 根據本創作之一特徵 比值形成一第一面積比值 ’該第一内電極與該第一外電極之面積 該第一面積比值係選自0.01至100之Pi_leetrie T_f_efs" (single-ugly multilayer piezoelectric surface puff in this document 'the output side is coplanar with the ground plane of the input end, easy to cause unevenness in polarization and non-electrical isolation for long-term use of electrical appliances It is easy to cause damage to electrical appliances. M399450 [New content] In view of the above problems of the prior art, the present invention provides a circular piezoelectric transformer with a ground electrode that does not share a ground electrode, and the piezoelectric The structure of the piezoelectric material is sandwiched between the electrodes on both sides, so that it can be used for the body-acoustic wave energy transmission _ mutual__, which can be widely applied to different acoustic wave components. A ring-shaped piezoelectric transformer having an ungrounded electrode includes a piezoelectric substrate, an upper electrode layer, and a lower electrode layer, wherein the upper electrode layer is electrically separated by a first-nap gap to form a first internal electrode Forming a second inner electrode and a second outer electrode with the second outer electrode layer, and the second inner electrode and the second outer electrode. According to the present invention, the piezoelectric substrate is composed of a single layer or a plurality of layers. Composition The characteristics of the creation, the piezoelectric substrate is selected from the Lai electric ceramics two slate * her bell, sharp acid clock, nitrided Shao, oxidation, nitriding, error-free piezoelectric ceramic board, compound _ electricity Substrate and pressing: one of the silk plates. According to the creation of the bribe, the upper electrode layer _ lower electrode material is selected from the group consisting of silver, pin, Syrian, German, private ^, copper, gold, chromium, bismuth copper oxide And a material of the group consisting of indium tin oxide. Forming a first area ratio according to a characteristic ratio of the present invention, the first area ratio of the first inner electrode and the first outer electrode is selected from 0.01 to 100. It
5 1遣!作之一特徵’該第二内電極與該第二外電極之面積 比獅成—第二面積比值，該第二面積比值係選自_至10〇1 -〇 為讓本創作之上述和其他目的、特徵、和優點能更明顯易懂， 下文特舉數個較佳實施例，並配合所附圖式，作t羊細說明如下。 【實施方式】 雖然本創作可表現林同形式之實關，但關所示者及於 下文中，明者係為本創作可之較佳實施例，並請了解本文所揭示 者係考里為本創作之—範例’且並非意關以將本創作限制於圖 示及或所描述之特定實施例中。 現请參考第1圖，其顯示根據本創作之實施例之具有不共用 接地電極之圓環壓電變壓器丨⑻結構示意圖。其至少包含一壓電 基板12〇、一上電極層110以及一下電極層130。該壓電基板12〇 在此選擇PZT4作為壓電陶竞基板。在該|電基板12〇上以網版印 席J方式形成上電極層110以及下電極層，且其金屬材料可選 擇為銀、鉬、鋁、鎢、鉑、銅、金、鉻、釔鋇銅氧與氧化銦錫， 該第一内電極111與該第一外電極113之面積比值形成一第一面 積比值’該第一面積比值係選自0.01至100，該第二内電極131 與該第二外電極133之面積比值形成一第二面積比值，該第二面 積比值係選自0.01至100。 在該上電極層110以及下電極層130之製程係使用網版印刷 M399450 疋畢後，進入烤箱以80(TC燒烤一個小時進行燒附，使銀膠附於壓 電基板120上。接著將麼電基板120進行極化的處理，置於13(rc 尚皿、’邑緣石夕油之恆皿槽中，並於高壓下進行極化，故具有壓電特 性。 不同面積比會有一個最大的電壓增益比，其中電極面積比 (Electrode，s Area Ratio, EAR)定義如下： EAR = 極面積比 jl -rl 輸入第一電極面積比一One of the characteristics of the second inner electrode and the second outer electrode is the ratio of the lion to the second area, and the second area ratio is selected from _ to 10 〇 1 - 〇 for the creation The above and other objects, features, and advantages will be apparent from the following description. [Embodiment] Although this creation can express the reality of the same form, but the person shown in the following and the following are the preferred embodiments of the creation, and please understand that the person disclosed in this article is This syllabus is not intended to limit the present invention to the particular embodiments illustrated and described. Referring now to Figure 1, there is shown a block diagram of a toroidal piezoelectric transformer (8) having a non-shared ground electrode in accordance with an embodiment of the present invention. It includes at least a piezoelectric substrate 12A, an upper electrode layer 110, and a lower electrode layer 130. The piezoelectric substrate 12A here selects PZT4 as a piezoelectric ceramic substrate. The upper electrode layer 110 and the lower electrode layer are formed on the electronic substrate 12 by a screen printing mask J, and the metal material thereof may be selected from silver, molybdenum, aluminum, tungsten, platinum, copper, gold, chromium, and rhodium. a ratio of an area ratio of the first inner electrode 111 to the first outer electrode 113 forming a first area ratio 'the first area ratio is selected from 0.01 to 100, and the second inner electrode 131 is The area ratio of the second outer electrode 133 forms a second area ratio selected from 0.01 to 100. After the process of the upper electrode layer 110 and the lower electrode layer 130 is completed by screen printing M399450, the oven is placed at 80 (TC barbecue for one hour for baking, and silver paste is attached to the piezoelectric substrate 120. What will be followed? The electric substrate 120 is subjected to polarization treatment, and is placed in a 13 (rc shanghai, 'small edge smear oil tank) and polarized under high pressure, so it has piezoelectric characteristics. The different area ratios have a maximum The voltage gain ratio, in which the electrode area ratio (Electrode, s Area Ratio, EAR) is defined as follows: EAR = polar area ratio jl - rl input first electrode area ratio
EAR'=检β差三·電極面精比—r:2 - r〈2 輸入第二電極面積比=~^·^ 現π參考第2圖，其顯示將上電極層m以及下電極層⑽ 結構為R為（)·5麵、^為5 5咖、Μ為6咖、二為 12.5_、h為心⑺印刷在壓電基板12叫，其第—圖為圓環壓 電變壓賴率與阻抗之_圖，會發财—個共振歧由全波長 所引起的’因此我們卫作頻率在全波長處，可知在随Hz為反EAR'=detect β difference three·electrode surface precision ratio—r:2 - r<2 input second electrode area ratio=~^·^ Now π refer to Fig. 2, which shows the upper electrode layer m and the lower electrode layer (10) The structure is R is () · 5 faces, ^ is 5 5 coffee, Μ is 6 coffee, two is 12.5 _, h is the heart (7) printed on the piezoelectric substrate 12, the first picture is the ring piezoelectric pressure Rate and impedance _ map, will make a fortune - a resonance is caused by the full wavelength 'so the frequency of our servant is at the full wavelength, it is known that the inverse with Hz
共_以’在82.7kHz為共振頻率乂。 現凊參寺第3圖，其顯千膝μ帝 、顯補上電歸Hx及下電極層13〇 …β為α5咖、'，為5 5_、0、為6_、'為 =_其4 __基板⑽上，當輸出負載為12〇 雷壓卿:二圖為圓電變壓器頻率靖增益之關係圖，其 電壓增益達到0.48倍。 由上述結果可知， 與該第二外電極之間， 若其中該第二環形_位於該第二内電極 用以形成該第二㈣極_第二外電極之 7 M3994.50 電! 生區隔，其中該第二内電極與該第二外電極係為該輸入埠之電 性接地與該輪出埠之電性接地，不論壓電基板的種類，皆可產生 不共用接地電極之效果，可以符合不同不共用接地電極之壓電變 壓器的應用。 雖本創作已以前述較佳實施例揭示，然其並非用以限定本 創作任何热習此技藝者，在不脫離本創作之精神和範圍内，當 可作各種之更動與修改。如上述的解釋，都可以作各型式的修正 _與變化’而不會破壞此發明的精神。因此本創作之保護範圍當視 後附之申請專利範圍所界定者為準。 【圖式簡單說明】 為了讓本創作之上述和其他目的、特徵、和優點能更明顯， 下文特舉本創作較佳實施例，並配合所附圖示，作詳細說明如下： 第1圖顯示為不共用接地電極之圓環壓電變壓器結構示咅、圖； 第2圖顯示為不共用接地電極之圓環壓電變壓器結構之頻率與阻 _ 抗關係圖； ^ 第3圖顯不為不共用接地電極之圓環壓電變壓器結構之頻率與電 壓增益關係圖； ^ M399450 【主要元件符號說明】 100具有不共用接地電極之圓環壓電變壓器 110上電極層 111第一内電極 112第一環形間隙 113第一外電極 120壓電基板 130下電極層 131第二内電極 132第二環形間隙 133第二外電極A total of _ is ' at 82.7 kHz for the resonant frequency 乂. Now the 3rd picture of the temple, it shows the thousand knees, the display power is returned to Hx and the lower electrode layer 13〇...β is α5 coffee, ', is 5 5_, 0, is 6_, 'is = _ 4 On the __ substrate (10), when the output load is 12 〇 Lei pressure: The second figure is the relationship between the frequency gain of the circular transformer and the voltage gain is 0.48 times. It can be seen from the above result that, between the second outer electrode and the second outer electrode, the second inner electrode is used to form the second (four) pole_second outer electrode 7 M3994.50 The second inner electrode and the second outer electrode are electrically grounded to the input port and electrically grounded to the wheel, and the effect of not sharing the ground electrode may be generated regardless of the type of the piezoelectric substrate. Suitable for applications with different piezoelectric transformers that do not share grounding electrodes. Although the present invention has been disclosed in the foregoing preferred embodiments, it is not intended to limit the scope of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention. As explained above, various types of corrections and variations can be made without detracting from the spirit of the invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. For the structure of the ring-shaped piezoelectric transformer that does not share the grounding electrode, Figure 2 shows the relationship between the frequency and the resistance-resistance of the ring-shaped piezoelectric transformer structure without the grounding electrode; ^ Figure 3 shows no The relationship between the frequency and voltage gain of the ring-shaped piezoelectric transformer structure sharing the grounding electrode; ^ M399450 [Description of main component symbols] 100 has a ring-shaped piezoelectric transformer 110 that does not share a ground electrode, the upper electrode layer 111, the first inner electrode 112 is first Annular gap 113 first outer electrode 120 piezoelectric substrate 130 lower electrode layer 131 second inner electrode 132 second annular gap 133 second outer electrode