M334445 八、新型說明： 【新型所屬之技術領域】 本創作係有關於高壓點燈，特別是指一種高功率輸出之壓電振盛器。 【先前技術】 冷陰極燈管（Cold Cathode Fluorescent Lamp ; CCFL)發光原理與 一般日光燈相似，其發光原理為，當高壓電由電極端輸入後，管内少數電 子分子高速撞擊電極，此時產生二次電子發射，開始放電時，電子與水銀 原子發生碰撞，水銀原子受激發輻射出253.7nm之紫外光，紫外光激發塗 鲁佈於管壁上之螢光粉而產生相對色溫之可見光。一般除可應用於顯示器、 個人數位助理、數位相機及手機等，更是液晶顯示器不可或缺的背光二料 之二。由於冷陰極螢光燈不採用燈絲，故無燈絲燒斷的問題，因此有非常 I靠的使用壽命，應用此種燈管作為照明光源，具有高發光效率、管徑小、 尚輝度、熱量少、壽命長等優點。 ^為，到體積小及良好電氣效能的要求’冷陰極燈管之點燈電路採用壓 電變壓器（piezoelectric transformer)代替線圈型升壓變壓器。由於壓 $器具有體積小、高電壓增益、高效率、絕緣良好及無電斜擾等優越 點 生。因此，-般通常將壓電變壓器應用於高發光效率照明系統的 燈電路，可達到短小輕薄及優越的電氣效能。 而’為了使壓電變壓器提供更大的輸出功率，除了加大尺寸外 式乃是將其銀電極面之面積增大，然而銀_面面積變大，會有 降低升[比果，使得原先儀提絲丨神敝果邱。加大尺 了增加成本之外，也與希望輕薄短小的要求相違背。 、示 【新型内容】 輸出之壓電 輸 «ΐ的主要目的在於提供-種高 :羞=用結構簡單的壓電電容器配合LC諳振電路，來達到大功j 出攸而可以減輕耗電與生產成本，極具有市場競爭優勢。 本創作的另—目的在於提供__種高辨輸出之塵電振邮係藉域 5 M334445 電電容器在Lc諧振電路下義電效應’於負載過載時會發揮自動保護機 制，避免造成故障及過熱的危險。 因此，為達上述目的，本創作所揭露之高功率輸出之壓電振盪器，是 將原應超音波紐器的大功率壓電震軸轉而顧在高Μ點狀安定 器及換流器中作為壓電電容器，此壓電電容器能夠在通電變形時產生逆壓 $應’變形後產生正壓電效應，如此會有正電荷產生具有放大電壓的 效果，而達到大功率輸出，改變了傳統壓電變壓器只提供高電壓、小電流 及功率輸出受限的缺點。 ； 鲁將壓電電容器與lc諧減路搭配，* LC譜振電路諧振時， 1揮取佳輸出效能，並當負載過載時，壓電電容獅溫度會上升、電容 使得LC諧振電路無法產生諧振，輪出效能變小，而具有自動保 電容：Li創作將壓電電容器可與lc諧振電路搭配外，更可選配-顆 容器姆之獅電容器艇配，在LC職電路於諧振時， 果提昇’達到輸出功率最佳化。 細說本創作的目的、特徵及其功能有進一步的了解’兹配合圖式詳 【實施方式】 俜洛斤揭露的高功率輸出之壓電織器，首先請參照第1圖， 曰本創作貝施例之高功率輸出之壓電振i器的示意圖。M334445 VIII. New description: [New technical field] This creation department is about high-voltage lighting, especially a piezoelectric vibrator with high power output. [Prior Art] The principle of luminescence of Cold Cathode Fluorescent Lamp (CCFL) is similar to that of general fluorescent lamps. The principle of luminescence is that when high voltage electricity is input from the electrode end, a small number of electron molecules in the tube collide with the electrode at high speed. Sub-electron emission, when the discharge begins, the electron collides with the mercury atom, the mercury atom is excited to emit ultraviolet light of 253.7 nm, and the ultraviolet light excites the fluorescent powder coated on the tube wall to generate visible light of relative color temperature. Generally, it can be applied to displays, personal digital assistants, digital cameras and mobile phones, etc. It is also the second indispensable backlight for liquid crystal displays. Since the cold cathode fluorescent lamp does not use a filament, there is no problem that the filament is blown, so there is a very long service life. The lamp is used as an illumination source, and has high luminous efficiency, small diameter, low brightness, and low heat. , long life and other advantages. ^ In order to meet the requirements of small size and good electrical performance, the lighting circuit of the cold cathode lamp uses a piezoelectric transformer instead of a coil type step-up transformer. The pressure device has advantages such as small size, high voltage gain, high efficiency, good insulation and no electrical disturbance. Therefore, the piezoelectric transformer is generally applied to a lamp circuit of a high luminous efficiency illumination system, which can achieve short, thin, and superior electrical performance. And 'in order to make the piezoelectric transformer provide more output power, in addition to increasing the size, the area of the silver electrode surface is increased, but the silver_face area becomes larger, which will lower the rise [the result makes the original The instrument is silky and sacred. In addition to increasing the cost, it is also contrary to the requirement of being light, thin and short. Show [new content] The main purpose of the output piezoelectric output is to provide - high: shame = use a simple piezoelectric capacitor with LC resonant circuit to achieve great power and reduce power consumption and production Cost, very competitive in the market. The other purpose of this creation is to provide __ kinds of high-definition output dust electric vibration postal domain 5 M334445 electric capacitor under the Lc resonant circuit, the electric effect will play an automatic protection mechanism during load overload to avoid malfunction and overheating danger. Therefore, in order to achieve the above objectives, the high-power output piezoelectric oscillator disclosed in the present invention turns the high-power piezoelectric vibration shaft of the original ultrasonic wave converter into a high-order point ballast and an inverter. As a piezoelectric capacitor, this piezoelectric capacitor can generate a reverse voltage when it is deformed by electric current. It should produce a positive piezoelectric effect after deformation, so that a positive charge can be generated with an amplified voltage, and a high power output can be changed, which changes the tradition. Piezoelectric transformers only provide the disadvantages of high voltage, low current and limited power output. Lu will match the piezoelectric capacitor with the lc harmonic reduction circuit. * When the LC spectrum circuit is resonant, 1 will output good output performance, and when the load is overloaded, the temperature of the piezoelectric capacitor lion will rise, and the capacitance will make the LC resonance circuit unable to resonate. The rotation efficiency is reduced, and the automatic capacitance is guaranteed: Li creation can match the piezoelectric capacitor with the lc resonant circuit, and can also be equipped with a container of the lion capacitor boat. When the LC circuit is in resonance, Improve 'to achieve optimal output power. I will further understand the purpose, characteristics and functions of this creation. 'I will cooperate with the drawing details. [Implementation] The high-power output piezoelectric woven device disclosed by 俜洛斤, please refer to Figure 1 first, 曰本Schematic diagram of a piezoelectric oscillator with high power output.
LCH電振難係朗於高壓點燈，其主要包含互相並聯的電容器10、 壓電H路2用0以及辅助f容器3〇、。壓電紐器所使用的電容器10為一 輪出，通電魏並科壓韻性，可_整功率目素再將功率 逆壓電效效應，變形後會產生正壓電效應，而其正、 以達到大絲储，使電驗大，崎姐大領的效果， 譜振電路2〇 i I ；Λ本實施娜壓電電容11 10搭_域生諧振之LC 諧振電路2G諧辦，誠蝴繼效能。 I、電合& 10之電容值主要會受溫度所影響，因此，在定電流的 6 M334445 情况下，其輪出電壓會改變，本實施例係選配輔助電容器3〇與變壓電容器 10作匹配’辅助電容器3〇的電容值與變壓電容器1〇之電容值相當，用以 輔助充電’使壓電效應達到輸出功率最佳化。當點燈時電壓會瞬間昇高， 點燈7L電谷值則會作出適當的匹配，所以輸出會跟著壓電效應進行調整， 能減少額外的電力消耗。 如第2圖所示，本實施例之壓電電容器1〇是以壓電材質製作一壓電 基材11，再以銀膠、銅膏或鎳膏製作同樣為圓形的導電層12、13於壓電 基材11的整個或部分的上表面與下表面，以構成壓電電容器1〇之兩極， =於導電層12、13外側分別焊接設置有電極接腳121、131，以連接LC 譜振電路20。本實施例中係使用一麵電電容器1〇,可以輸出高達7〇瓦 的功率’/、而要搭配半橋諧振電路，可減少生產成本，極具有價格競爭的 優勢’當然，若搭配全橋諧振電路即可以推動更高功率之輸出。再者，此 壓電電容器10若搭配L阻抗型之LC譜振電路乃具有自動保護功能，可以 於負載過載時因電谷值變大而改變譜振輸出，輸出功率降低，而使溫度下 2 ;由於壓電電容器1()具有壓電特性，一旦負載過載時，其溫度上升、電 容，變大，使得LC言皆振電路内部的電容值改變，而無法產生諸振，輸出 效能變小’燈j隨之暗了下來，如此可避免造成故障及過熱的危險。 _ 此外’如第3圖所示，本創作之另一實施例係使用透過一引線5〇作 上下連接的兩麵魏容器、4G ,實務上壓钱容料以為串聯或並 聯，其分別具有一組壓電基材Ή及對應的二導電層12、13 (壓電電容器 10、40結構相同，故僅以壓電電容器1〇為代表）。由於電容值提高，^ 值增加，共振後所產生的功率也會跟著變大，可以輸出高達〖的功率， 而/皿度則可以維持於3〇。〇左右。這也表示本實施例之壓電電容器較之傳统 壓電變壓器係可提供倍數增加的輸出功率，且沒有過熱的問題。、 雖然本創作以麵之實細揭露如上，然其並_以限定本創作 不脫離本創作之精神和範圍内，所為之更動與潤飾，均屬本創作之專利保 護範圍。關於本創作所界定之保護顧請參考所附之巾請 【圖式簡單說明】 ® 7 M334445 第1圖係本創作實施例所提供之高功率輸出之壓電振盪器的示意圖； 第2圖係本創作實施例所提供之壓電電容器的示意圖；及 第3圖係本創作另一實施例所提供之壓電電容器的示意圖。 【主要元件符號說明】 10壓電電容器 11壓電基材 12導電層 121電極接腳 13導電層 ® 131電極接腳 20 LC諧振電路 30辅助電容器 40壓電電容器 50引線The LCH electric vibration is difficult to be high-voltage lighting, and mainly includes a capacitor 10 connected in parallel with each other, a 0 for the piezoelectric H-path 2, and an auxiliary f-container 3 〇. The capacitor 10 used in the piezoelectric device is a round-out, and the power is applied to the Weiheke, and the power can be reversed by the piezoelectric effect. After the deformation, the positive piezoelectric effect is generated, and the positive piezoelectric effect is achieved. Storage, make the electric test big, the effect of the big sister of Saki, the spectrum circuit 2〇i I; 实施本 implementation of the piezoelectric capacitor 11 10 _ _ domain resonance LC resonant circuit 2G Harmony, sincerity and success. The capacitance value of I, the electric coupling & 10 is mainly affected by the temperature. Therefore, in the case of the constant current of 6 M334445, the wheeling voltage will change. In this embodiment, the auxiliary capacitor 3〇 and the transformer capacitor 10 are selected. The capacitance value matching the 'auxiliary capacitor 3' is equivalent to the capacitance value of the transformer 〇1 , to assist the charging' to optimize the piezoelectric effect to the output power. When lighting, the voltage will rise instantly, and the 7L electric valley will be properly matched, so the output will be adjusted with the piezoelectric effect, which can reduce the extra power consumption. As shown in FIG. 2, in the piezoelectric capacitor 1 of the present embodiment, a piezoelectric substrate 11 is made of a piezoelectric material, and the same circular conductive layers 12 and 13 are made of silver paste, copper paste or nickel paste. The upper surface and the lower surface of the piezoelectric substrate 11 are formed to form two poles of the piezoelectric capacitor 1 , and the electrode pins 121 and 131 are respectively soldered on the outer sides of the conductive layers 12 and 13 to connect the LC spectrum. Vibration circuit 20. In this embodiment, one side of the electric capacitor is used, and the power of up to 7 watts can be outputted, and the half-bridge resonant circuit can be used to reduce the production cost, which has the advantage of price competition. Of course, if it is matched with the full bridge. The resonant circuit can drive a higher power output. Furthermore, if the piezoelectric capacitor 10 is equipped with an L-impedance LC spectrum circuit, it has an automatic protection function, which can change the spectral output due to an increase in the electric valley value during load overload, and the output power is lowered, and the temperature is lowered. Since the piezoelectric capacitor 1() has piezoelectric characteristics, once the load is overloaded, its temperature rises and the capacitance increases, so that the capacitance value inside the LC mode is changed, and the vibration cannot be generated, and the output efficiency becomes small. The lamp j is then darkened to avoid the risk of malfunction and overheating. _ In addition, as shown in FIG. 3, another embodiment of the present invention uses a two-sided Wei container, 4G, which is connected up and down through a lead wire 5, and is practically pressed into a series or parallel, each having a The piezoelectric substrate Ή and the corresponding two conductive layers 12 and 13 (the piezoelectric capacitors 10 and 40 have the same structure, and therefore are represented only by the piezoelectric capacitor 1 )). As the capacitance value increases, the value of ^ increases, and the power generated after resonance also increases, and the power can be output up to 〖, and the / degree can be maintained at 3 〇. Hey around. This also means that the piezoelectric capacitor of the present embodiment can provide a multiple of increased output power compared to the conventional piezoelectric transformer system, and there is no problem of overheating. Although this creation reveals the above as a matter of fact, it is not limited to the spirit and scope of this creation, and the changes and refinements are the scope of patent protection of this creation. For the protection of the creation of this creation, please refer to the attached towel. [Simplified illustration] ® 7 M334445 Figure 1 is a schematic diagram of the high-power output piezoelectric oscillator provided in this creation example; A schematic diagram of a piezoelectric capacitor provided by the present embodiment; and FIG. 3 is a schematic view of a piezoelectric capacitor provided by another embodiment of the present invention. [Main component symbol description] 10 piezoelectric capacitor 11 piezoelectric substrate 12 conductive layer 121 electrode pin 13 conductive layer ® 131 electrode pin 20 LC resonance circuit 30 auxiliary capacitor 40 piezoelectric capacitor 50 lead