TWI253772B - Piezoelectric structure - Google Patents

Piezoelectric structure Download PDF

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Publication number
TWI253772B
TWI253772B TW94127969A TW94127969A TWI253772B TW I253772 B TWI253772 B TW I253772B TW 94127969 A TW94127969 A TW 94127969A TW 94127969 A TW94127969 A TW 94127969A TW I253772 B TWI253772 B TW I253772B
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Taiwan
Prior art keywords
electrode
input
output
present
piezoelectric
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TW94127969A
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Chinese (zh)
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TW200709478A (en
Inventor
Jin-Wen Jou
Ying-Nan Jeng
Yu-Liang Jeng
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Zippy Tech Corp
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Publication of TW200709478A publication Critical patent/TW200709478A/en

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  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

The present invention relates to a piezoelectric structure which outputs voltage through the polarization from the input of a voltage source. On the two sides corresponding to the vertical direction of the polarization, one side has an input electrode electrically connecting to a voltage source, an output electrode for outputting voltage, and a grounding electrode set on the other side. Since the distance between the input electrode and the grounding electrode and the distance between the output electrode and the grounding electrode are not equidistant, the boost/step-down ratio of the piezoelectric structure can be varied by the height difference of the two electrodes.

Description

1253772 九、發明說明: 【發明所屬之技術領域】 · 本發明係有關一種壓電構造, 之壓電構造。 3種可改變其升、降壓比 【先前技術】 壓電現象基本上是屬於機械能和 象。由於有電荷及應變的互為因果 %間此量轉換的—種現 體,所以只要物體的結晶構造存在可因此能產生壓電性的物 矩,就會產生機電能量彼此轉換作用而產生的 電偶極 根源。 、豕,此種現象即壓電性產生之 電偶極矩的產生歸因於晶體内部 心殊的排财式,使材料中晶格系 子和陰離子存在某- 矩產生,細最基本的條件狀晶格=,各,同的電偶極 格中存在對射心,騎離子和陰離 心。假若晶 電偶極矩就不會發生。當然就不會有機H中,現象產生, 生。至於機電能的轉換現象通常有三種:此轉換的現象發 ⑵電能轉換賴械能⑶電 幾械能轉換成動能 出等三種方式。__ 1:==能再轉換成電能輸 其所二第2圖」所示,為習知之遷電構造, trn」之塵電構造,係為藉由輸出/入面積盘 面積之厚度關係改變,其所產生之極化過程以 ©ΐί*千ϊ之升、降屢比之原理。然而’在習知作法上,其皆以 ^構叙輸人與輸出電極㈣接地電極之距離(即如圖示 1253772 j=d。),而改變輸人電極與輸出電極之極化面積,藉以改綠升、 p牛堡比之大小;其問題在於:若要改變升、降壓比之大艾 ==甚1_到壓電構造之製造技術及所裝置之 =專利證書第67Q7235號所揭示之—種環狀之 其包含有一第一部分及第二部分,且比 兒構、 再以其他部分產生且轉化該壓電構造;= 利用不同形狀壓電構造,進而產生不同二=: »之壓電構造外型產生製造上不易的問題。-不同形狀 【發明内容】 本發明之主要目的’在於解決上述之缺失 本發明係利用壓電材料極化面積與輸入與輸出電^之 之兩度差,而可改變該壓電構造之升、降壓比,對 相同輸入電壓、相近體積之壓電 疋,一-白知有 可因此-技術之開發而形成較高或較^之出電壓 構造於所設置之構造内佔有之空間。低之輸出㈤,可㈣壓電 本發明之另-目的,在於簡易地 ,與習知相同之輸入電壓,達到^屯構^之外型,利用 節省工時及工序之優點。出車乂呵或幸父低之輸出電壓,具有 【實施方式】 .明如巧本發明之詳細_及技_容,現就配合公式及圖式戈 f係為一連接有—電麵所示··本 表面設有-電性連接化方向之二表面之中- 亥"堡源10之輪出電極22,及—用以輪出 6 1253772 該壓電構造20作動後升或降壓之輸出電極22,而相對該二電極所 設之表面另一表面則設有一用以接地之接地電極23,而本發明之 重點即在於:該輸入電極21或該輸出電極22與相對之該接地電 極23因壓電片之厚度而形成一不等距之關係。 上述Berlincourt所述之公式如下所示,設習知之升、降壓比 為α 1,本發明之升、降歷比為α 2,習知之輸入/出電極極化面積 分別為Ai、Α。’本發明之輸入/出電極極化面積分別為a!、a。’習 知之輸入/出電極相對應於該接地電極23之距離分別為D!及D〇, 本發明之輸入/出電極相對應於該接地電極23之距離分別為ώ、 do ’且預设Ai=9<i,Αο=&ο為相專之情況下· ⑴二(Ai/Di2) / (A〇/D〇2),而可得 a i=Ai D〇2 / A〇 Di2 ° 因此,本發明依照上述原理,a2= (aJcL2) / (a〇/d。2),可 得a2=a! d。2 / a。ώ2,如是,本發明之特徵即是:該輸出電極22 與該輸入電極21相對於該接地電極23之距離係為不等距,因此, 若參照圖中之Κώ,再將α 1與α2相比而可得一比值,該比值即 為習知之升、降壓比與本發明之升、降壓比之比值,藉由該比值 即可瞭解本發明僅需改變該輸入電極21或該輸出電極22相對應 於該接地電極23之距離,即可調整該壓電構造20之升、降壓比, 進而可根據負載30所需之工作電壓選擇適當之輸出電壓。 請參閱「第4圖」所示,係為本發明之實施例示意圖,該輸 入電極21及該輸出電極22二者可改變該輸入電極21設於該輸出 電極22所包圍之範圍内,亦可該輸出電極22設於該輸入電極21 所包圍之範圍内,用以產生不同之升、降壓比,藉由二電極21、 22之極化面積不同’及該輸入、輸出電極21、22相對該接地電極 23距離改變之間組合方式,可獲得不同之輸出電壓,以對應供給 該負載30所需之工作電壓。 請參閱「第5-1圖」及「第5-2圖」所示,係本發明之另一 實施例示意圖,並參考上述壓電構造20之原理,如圖所示:該輸 1253772 $電巧22與該輸入電極21之極化面積比係 22可為極化面積相異,如此可形成不同之電極21、 =第3圖」改變該負載3〇之輸入鱗應 电同日寺可利用 輪出電屢之輸出電極22位置方式(改:I亥蜃電構邊洲 2〗所環繞),可使升置之降 ,為受減 供垓負載30適當之工作電壓需求。王更夕不同之變化組合, 明/ΐ上所述僅為本發明的較佳實施例而已,+ 月之貫施範圍。即凡依本發明申 =亚非用來限定本發 化與修飾,皆應為本發明之技二範·。關之内容所為的等效變 1253772 【圖式簡單說明】 . 第1-1圖,係習知之外觀立體示意圖。 第1-2圖,係習知之組合示意圖。 第2-1圖、第3-1圖,係為本發明之外觀立體示意圖 第2-2圖、第3-2圖,係本發明之組合示意圖。 第4圖,係為本發明之實施例示意圖。 第5-1圖、第5-2圖,係為本發明之實施例示意圖。 【主要元件符號說明】 10....... .......電壓源 20....... .......壓電構造 21....... .......輸入電極 22....... .......輸出電極 23....... .......接地電極 30....... .......負載1253772 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a piezoelectric structure and a piezoelectric structure. Three kinds can change the ratio of rising and lowering. [Prior Art] Piezoelectric phenomena are basically mechanical energy and images. Since there is a kind of current between the charge and the strain, which is caused by the conversion of the amount of each other, as long as the crystal structure of the object exists, a piezoelectric moment can be generated, and electricity generated by the mutual conversion of electromechanical energy is generated. Dipole source.豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕 豕Shaped lattice =, each, the same electric dipole lattice exists in the centroid, riding ions and yin centrifugation. If the crystal dipole moment does not occur. Of course, there will be no organic H, the phenomenon will occur, and birth. As for the conversion of machine power, there are usually three kinds of phenomena: the phenomenon of this conversion (2) the conversion of electric energy (3), the conversion of several mechanical energy into kinetic energy, and so on. __ 1:== can be converted into electric energy, as shown in Figure 2, which is a conventional electric power structure, and the dust structure of trn" is changed by the thickness relationship of the output/input area. The polarization process produced by it is based on the principle of increasing, decreasing, and reducing the ratio of ©ΐί*. However, in the conventional practice, the distance between the input electrode and the output electrode (4) grounding electrode (ie, 1253372 j=d.) is changed, and the polarization area of the input electrode and the output electrode is changed. Change the size of the green and p-bull ratio; the problem is: if you want to change the ratio of the rise and the fall, the ratio is greater than the ==1 to the manufacturing technology of the piezoelectric structure and the device = patent certificate No. 67Q7235 The ring-shaped one includes a first portion and a second portion, and is formed and converted into other piezoelectric structures by the other structures; = using different shapes of piezoelectric structures, thereby generating different two =: » pressure Electrical constructions create problems that are not easy to manufacture. -Different shapes [Summary of the Invention] The main object of the present invention is to solve the above-mentioned drawbacks. The present invention utilizes the difference between the polarization area of the piezoelectric material and the input and output voltages, and can change the rise of the piezoelectric structure. The step-down ratio, for the same input voltage, the piezoelectric 疋 of the same volume, the one can understand the development of the technology to form a higher or higher voltage structure in the space occupied by the set structure. Low output (5), (4) Piezoelectric Another object of the present invention is to simplify the input voltage of the conventional one, and to achieve the advantages of man-hour and process. The output voltage of the vehicle is low or the father is low. It has the [Embodiment]. The details of the invention are as follows. The formula and the diagram are the connection of the electric system. · The surface is provided with - the surface of the electrical connection direction - Hai", the wheel electrode 22 of the source 10, and - for the rotation of 6 1253772. The piezoelectric structure 20 is actuated and then stepped up or down. The output electrode 22 is provided with a ground electrode 23 for grounding on the other surface of the surface provided with the two electrodes, and the focus of the present invention is that the input electrode 21 or the output electrode 22 is opposite to the ground electrode. 23 due to the thickness of the piezoelectric sheet to form an unequal relationship. The formula described above by Berlincourt is as follows. The conventional rise and fall ratios are α 1, and the rise and fall ratios of the present invention are α 2 . The conventional input/output electrode polarization areas are Ai and Α, respectively. The polarization areas of the input/output electrodes of the present invention are a!, a, respectively. The distances of the conventional input/output electrodes corresponding to the ground electrodes 23 are D! and D, respectively, and the distances of the input/output electrodes of the present invention corresponding to the ground electrodes 23 are ώ, do ' and preset Ai, respectively. =9<i,Αο=&ο is a special case · (1) two (Ai/Di2) / (A〇/D〇2), and ai=Ai D〇2 / A〇Di2 ° is available, therefore, According to the above principle, a2 = (aJcL2) / (a 〇 / d. 2), and a2 = a! d can be obtained. 2 / a. Ώ2, if the present invention is characterized in that the distance between the output electrode 22 and the input electrode 21 with respect to the ground electrode 23 is not equidistant, therefore, if reference is made to the figure, then α 1 and α 2 are phased. A ratio is obtained, which is the ratio of the conventional rise and fall ratios to the rise and fall ratios of the present invention. From the ratio, it can be understood that the present invention only needs to change the input electrode 21 or the output electrode. 22, corresponding to the distance of the ground electrode 23, the rise and fall ratios of the piezoelectric structure 20 can be adjusted, and an appropriate output voltage can be selected according to the operating voltage required for the load 30. Please refer to FIG. 4 , which is a schematic diagram of an embodiment of the present invention. The input electrode 21 and the output electrode 22 can change the range in which the input electrode 21 is disposed in the output electrode 22 . The output electrode 22 is disposed in a range surrounded by the input electrode 21 for generating different rise and fall ratios, and the polarization areas of the two electrodes 21 and 22 are different, and the input and output electrodes 21 and 22 are opposite. The ground electrode 23 is combined in a distance change manner to obtain a different output voltage to correspond to the operating voltage required to supply the load 30. Please refer to "FIG. 5-1" and "FIG. 5-2" for a schematic view of another embodiment of the present invention, and with reference to the principle of the above-mentioned piezoelectric structure 20, as shown in the figure: the input 1253772 $ electric The polarization area ratio 22 of the input electrode 21 and the input electrode 21 may be different for the polarization area, so that different electrodes 21 may be formed, = 3rd figure. The input scale of changing the load 3〇 should be used in the same day. The output mode of the output electrode 22 is repeated (replaced by I: 蜃 蜃 蜃 边 2 〗 〗 〗 〗 ) ) ) ) ) ) ) ) , , , , , , , , , , , , , , 升 升 升 升The combination of different changes of Wang and Xi, is only the preferred embodiment of the present invention, and the range of + month. That is, the use of the invention according to the invention = sub-Asian non-limiting to the present invention and modification, should be the second embodiment of the invention. The equivalent of the content of the content is 1253772 [Simple description of the diagram] Figure 1-1 is a stereoscopic view of the appearance of the conventional. Figure 1-2 is a schematic diagram of the combination of the prior art. Figs. 2-1 and 3-1 are perspective views showing the appearance of the present invention. Figs. 2-2 and 3-2 are schematic views of the combination of the present invention. Figure 4 is a schematic view of an embodiment of the present invention. Figures 5-1 and 5-2 are schematic views of an embodiment of the present invention. [Description of main component symbols] 10....... .......voltage source 20..................piezoelectric structure 21....... ... input electrode 22..................output electrode 23...................ground electrode 30....... .......load

Claims (1)

1253772 ι+、申請專利範圍: 極’其特徵在於: 之另—表面係為-接地電 為不等距。 π π專利乾圍弟1項所述壓電構造,其中該 二電極於該屋電構造上所形成之極化面積係為相%亟兵該輪 •如申請專利範圍第1項所述壓電構造,其中該輪 入電極於該壓電構造上卿成之極化面積係為不彳時。%。、以輪1253772 ι+, the scope of patent application: The pole 'is characterized by: the other - the surface is - the grounding electricity is not equidistant. π π 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利 专利A configuration in which the polarization area of the wheel-in electrode on the piezoelectric structure is not. %. Wheel 1010
TW94127969A 2005-08-17 2005-08-17 Piezoelectric structure TWI253772B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7492078B1 (en) 2007-09-19 2009-02-17 Zippy Technology Corp. Circular piezoelectric apparatus
US8333354B2 (en) 2005-06-01 2012-12-18 Croydex Limited Structure having a mounting means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8333354B2 (en) 2005-06-01 2012-12-18 Croydex Limited Structure having a mounting means
US7492078B1 (en) 2007-09-19 2009-02-17 Zippy Technology Corp. Circular piezoelectric apparatus

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