200947098 六、發明說明： 【發明所屬之技術領域】 本發明係有關於驅動裝置，尤其係有關於使用壓電元件等的電 機機械轉換元件之驅動裝置。 【先前技術】 以往’作為相機之自動對焦用致動器或變焦（room)用致動器， 係使用壓電元件、電致伸縮元件、磁致伸縮元件等的電機機械 換元件之（驅動裝置）線性致動器。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving device, and more particularly to a driving device for a motor-mechanical conversion element using a piezoelectric element or the like. [Prior Art] Conventionally, as an actuator for autofocus of a camera or an actuator for a room, a mechanically-changed component such as a piezoelectric element, an electrostrictive element, or a magnetostrictive element is used (drive device) ) Linear actuators.
上專利文獻1揭示有一種具備：壓電元件（電機機械轉換元件）、 與该壓電元件結合而延伸於壓電元件之伸縮方向的驅動軸（耐磨 損性的振動棒、振動摩擦部、振動構件）、和與該驅動軸摩擦姓人 的被驅動構件（變焦鏡頭筒、移動構件）之驅動裝置。於該 If 1中’取彳于施加至壓電元件的驅動信號，以驅動被驅動 ，焦鏡補、雜構件）。於專利讀丨巾，將驅練（ 、振動構件）夾持在被驅動構件（移動構件）與摩擦板之# 軸(振動摩擦部、振動構件）係貫通於被驅動構件 她^構與縣板之間。藉由壓解簧，使縣板朝向將驅 ===向=構件)夹持於該摩擦板獅動構件(移 用ϋΐ文獻2揭示有—種高功能的驅動裝置，該驅動裳置传 ======之情形 的壓電元件加賴而伸縮 端的驅動轴（振動縣部、振動===件之伸縮方向- 3 200947098 她祕縣，而使可動子（移 *盡丄驅動轴（振動摩擦部、振動構件）移動。 動構延7:直示線 係由可動子本體輿ί5 Λ轴構成。可動子（移動構件） 卡合於_以爽持驅姉的方式 形成特定摩擦力的方式，藉由大 驅動轴。於可動子 ο 時，藉由“ 與可動子本體組合 觸。作為驅動軸的材料，=斜面與驅動軸接 韻維桿㈤on flb⑽並以點著劑固定的Patent Document 1 discloses a piezoelectric element (motor mechanical conversion element) including a drive shaft that extends in a telescopic direction of the piezoelectric element in combination with the piezoelectric element (a vibration-resistant vibrating rod, a vibration friction portion, and A vibrating member) and a driving device that rubs the driven member (zoom lens barrel, moving member) of the surname with the driving shaft. In the If 1, the drive signal applied to the piezoelectric element is taken to drive the driven, the focal lens complement and the miscellaneous member. In the patented kerchief, the oscillating (and vibrating member) is clamped between the driven member (moving member) and the friction plate (the vibration friction portion, the vibration member) through the driven member, and the county plate between. By pressing the spring, the county plate is clamped to the friction plate lion moving member (moving with the ϋΐ ϋΐ 2 2 reveals that there is a high-function driving device, the driving is set to pass = In the case of =====, the piezoelectric element is attached to the drive shaft of the telescopic end (vibration of the county, vibration === the direction of the expansion and contraction of the piece - 3 200947098), and the movable part (moving * drive shaft) The vibration friction portion and the vibration member move. The dynamic extension 7: the direct line system is composed of the movable sub-body 舆ί5 Λ axis. The movable member (moving member) is engaged with the _ to hold the specific friction force in a manner of holding the drive In the way, by the large drive shaft, by the movable part ο, by "combining with the movable sub-body. As the material of the drive shaft, the bevel is connected to the drive shaft (5) on flb (10) and fixed by the dot agent.
=或渐_賴W 電機機械娜元件，齡餘料〜=置具備有·靜止構件； ο 方向的另-St^該電機機械轉換元件之伸縮 電機機械轉換元叙伸縮方可移動於 =在凝動構件（振動構件）與 件 ^ 3裝置’ 成。又，將移動椹似瓶叙接姓達至驅動構件的夾持構件所構 設成剖面V:冓件和驅動構件的接卿、及夾持構件的接觸$ 利機械轉換元件的驅動裝置。專 的電機機械轉換兀件；固定於該電機機械轉換元件乂^ 4 200947098 擦力卡合於該振動構件 可使用碳桿（carbon 又 所揭示一種^交短的驅動裝置。專利文獻5 機機械轉換元有· 一 疋於固定體（靜止構件）的電 者於該電機機械轉換元件之另—端的驅動摩 的移動體('移動構;，構件);和摩擦卡合於該驅動摩擦構件 材料、聚苯硫鍵樹月匕^，_擦構件的材料’可使用：陶究 液晶聚合物 irylersuIflderesin) (PPS 樹脂）或 ❹強化樹脂等。 a等的工程塑膠、碳強化樹脂及玻璃纖維 ^利文獻1】9本專利第3218851號公報 ίί曰本特開2〇06-304529號公報 rt文ί】日本專利第3141714號公報 & 2 ^ ί特開2〇〇2一119074號公報 1專散獻5】日本制裏-⑷丨33號公報 【發明内容】 【發明所欲解決之課題】 滑順地進=彳==_雜齡的移鱗件（移動趙） 的材料選定變得非常^換70件_者財面考量，振動摩擦部 定的自由if驅在於提供-種可獻鶴雜部之材料選 200947098 ΐ=ϊί他課題在於提供"'種可擴大雜摩擦部之形狀自由度 【解目/射縣卿⑽展而明瞭。 此mm可剌-麵練置，储備於侧方向且有彼 於今i機機13b)之電機機械轉換元件（13)、安裝 於該電機機械轉換疋件之—對端面的―邊（l3b) g 擦部摩擦結合的軸構件（121、12认=， ϊϋ( 1、121A、122)可移動於電機機械轉換元件（1 ) Ο Ο 件(13)之-對端面的-邊(=和2 摩巧（14)的㈣（14a)之間之振動傳達構件（19、！⑷。 在=本^月之驅動裝置⑽、1〇c)中，振動傳達構件（拠） 1凹。(5 (191) ’可供電機機械轉換元件（13)之一對端 二篏、和第2凹部(192)，可供振動摩擦部(⑷ ^卜^斤述括弧内的參照符號係為了促使容易理解而附加 有，、不過表不一例，當然非限定於此等符號。 【發明的效果】 ，本發财’由於在電性轉換元件之一對端面的—邊和振動 ίΪ.ΪΪ端面之間插入有振動傳達構件，故可擴大振動摩擦部之 材料選S的自由度’並可擴大振動摩擦部之形狀自由度 【實施方式】 以下，參照圖面，說明本發明之實施型態。 今照^ 1至圖3’說明本發明之第i實施型態的驅動裝置1〇。 圖1係表示驅動裝置1〇之立體圖。圖2係將圖丨所示之驅動裝置 10的主要部分予以放大顯示的部分放大立體圖。圖3係驅動裝置 10的主要部分之側面圖。此處，如圖丨至圖3所示，使用直交座 標系（X、Y、Z)。在圖i至圖3所示的狀態，於直交座標系（χ、 6 200947098 巾，χ軸為前後方向（深度方向），γ轴為左右方向（寬度 方向）’_Ζ㈣上下方向（高度方向）。 減Ξ不的驅動裝置10係作為例如自動對焦鏡頭(論focus lens) Ιτο使用。於該情況下，於圖丨至圖3所示的例子中，上下 方向Z係鏡頭的光軸〇方向。 ί外’自動對紐頭鶴單元係由麵可躺和鏡頭驅動部 ^。鏡綱動雜—邊賴頭可動部以稍紐絲〇方向 、方式+持，一邊如後述般地驅動鏡頭可動部。= or gradual _ _ W motor mechanical Na component, age residual material ~ = set with · static component; ο direction of the other - St ^ the mechanical mechanical conversion component of the telescopic motor mechanical conversion element can be moved in = condensed The moving member (vibrating member) is formed with the device 3 device. Further, the gripping member that moves the gripping bottle to the drive member is constructed such that the cross section V: the grip of the grip member and the drive member, and the driving means for contacting the grip member with the mechanical conversion member. Special motor mechanical conversion element; fixed to the motor mechanical conversion element 乂^ 4 200947098 The friction force can be used to bond the vibration member to the carbon rod (carbon also discloses a short drive device. Patent Document 5 Machine Mechanical Conversion a member of the electric body of the fixed body (the stationary member) that drives the motor at the other end of the motor mechanical conversion element (the 'moving structure; the member); and the friction is engaged with the material of the driving friction member, The benzene-sulfur bond tree 匕 ^, _ wipe member material ' can be used: ceramic liquid crystal polymer iyllersuiIflderesin) (PPS resin) or enamel resin. Engineering plastics, carbon reinforced resin, and glass fiber of a, etc. 1] 9 Patent No. 3218851 ί 曰 特 〇 〇 〇 - - - - - 】 】 】 】 】 】 】 Japanese Patent No. 3141714 & 2 ^ ί特开2〇〇2一119074号1Specially distributed 5】Japanese made--(4)丨33号 [Summary of the invention] [Problems to be solved by the invention] Smoothly enter = 彳 == _ The selection of materials for the scales (moving Zhao) has become very good. 70 pieces of _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Providing "'species can expand the shape freedom of the friction part [Explanation / shooting County Qing (10) exhibition is clear. The mm can be machined, the motor mechanical conversion component (13) stored in the side direction and having the current machine 13b), and the "edge" (l3b) mounted on the mechanical conversion component of the motor g Rubbing friction combined shaft member (121, 12 recognize =, ϊϋ (1, 121A, 122) can be moved to the motor mechanical conversion element (1) Ο Ο ( (13) - opposite end - side (= and 2 In the vibration transmission member (19, !(4) between (4) and (14a) of the genius (14), the vibration transmission member (拠) 1 is concave. (5 ( 191) 'The motor-to-motor conversion element (13) can be used to vibrate the friction part ((4)^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ In addition, it is not limited to an example, and is of course not limited to such symbols. [Effects of the Invention] The present invention is inserted between the end faces of the electrical conversion elements and the vibrations of the end faces. Since the vibration transmitting member is used, the degree of freedom of the material selection S of the vibration friction portion can be enlarged, and the degree of freedom of the shape of the vibration friction portion can be expanded. Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view showing a driving device 1A according to a first embodiment of the present invention. A partially enlarged perspective view showing an enlarged main portion of the driving device 10 shown in Fig. 3. Fig. 3 is a side view showing a main portion of the driving device 10. Here, as shown in Fig. 3 to Fig. 3, an orthogonal coordinate system is used. (X, Y, Z). In the state shown in Fig. i to Fig. 3, in the orthogonal coordinate system (χ, 6 200947098, the χ axis is the front-rear direction (depth direction), and the γ-axis is the left-right direction (width direction)' _ Ζ (4) Up and down direction (height direction) The drive device 10 for reducing the yoke is used as, for example, an autofocus lens (focus lens) 。το. In this case, in the example shown in Fig. 3 to Fig. 3 The direction of the optical axis of the lens is 。. The 'automatic pair of the new-headed crane unit is made up of the reclining and the lens driving part ^. The mirror is moving and moving - the movable part of the side is slightly twisted, the way is +, the side is like The lens movable portion is driven as described later.
，示的驅動裝置10係配置於未圖示的框體内c»框體包含罩杯 =)狀的上側蓋罩（cover)(未圖示）和下側基底（未圖示）。 二體，下側基底上搭載靜止構件（重錘）n。上侧蓋罩的上面， 二有以光軸Q作為中心軸的圓筒部（未圖示）。另—邊面，雖未圖 f於下側基底的中央部，搭載配置於基板的拍攝元件。該拍 係賴由可動鏡頭（後述）祕雜的被雜像轉換成電 # 拍攝元件係藉由例如CCD (charge coupled device)型影 像感測器、CMOS (complementary metal oxide semieonduetoiO # 影像感測器等構成。 於框體内收容有被驅動構件之可動鏡筒（鏡頭保持器（lens flder)、鏡頭支持體）17。可動鏡筒（鏡頭保持器、鏡頭支持體） 7具有用以保持鏡頭筒（iens barrd)(鏡頭組（kns咖咖_) 18的圓筒狀筒狀部17〇。鏡頭筒（鏡頭組）18係用以保持自動對 焦鏡頭AFL:於鏡頭保持器17的筒狀部17〇的内周壁，形成有母 螺紋（未圖示）的缺口。另一邊面，於鏡頭筒18的外周壁，形成 有可螺合於上述母螺紋之公螺紋（圖示）的缺口。因此，將鏡頭 ，（lens barrel) 18裝設於鏡頭保持器17時，係藉由使鏡頭筒18 相對於鏡頭保持器（lens holder) 17的筒狀部170繞著光轴0旋 轉以沿光軸Ο方向螺合，而將鏡頭筒18收容於鏡頭保持器17 並藉由黏著劑等相互接合。 ° 鏡頭保持器17具有：相對於光轴〇在筒狀部17〇之左右方向 γ的右側朝半徑方向外侧突出的突條部172。該突條部172係與光 7 200947098 =〇平行地延伸於上下方向ζ。於該突條部172的後壁， 係(移她）121 °槪賴子巾，帛1移動_ η 保持1117具有：於筒狀部17G的後端朝左右方向Y的左 則^伸的延伸部m。於該延伸部m設有用 ，部Ha的卡定溝174a。彈t 15係沿174 ;‘第 ;5a朝左右方向γ的右側延伸至第 b 固著有棒狀的第2移動體_軸)⑵2 不的^中，第2移動體122亦同樣地形成為圓柱狀。在圖 ο ^ 7 1J、刖俊方向X的刖方）推壓。於第i 軸)21與第2移動體(移動軸)I。之間，失^有 長件)二=:中和第第2= 帛1糊121 w麵 ❹ 框體僅朝鏡頭之。依此，鏡頭可動部可對於 頭驅ΐί 頭驅動單元的鏡頭驅動部進行說明。鏡 積層磨電_航件而作用的 動構件）14、和振動傳達構件19所構成)/、上述振動摩擦部（振 有於肩光轴〇方向伸縮。積層磨電元件13且 合於麵電元㈣的第1端面二/i係 8 200947098 U與靜止構件的組合稱為璧電單元。 劑等安構件19，以黏著 積層壓電元件13的上媸；ηΐΛ ^ (上端面）13b。亦即， 合)於振動傳達構件====脂)結合(接 旨） ο η不僅其材料選形=:(振動構件） 果’可提升電機機械轉換元自由結 (振動構件）14的黏著強产I…曰㈣轉）13與振動摩擦部 ❹ l ，(^CC). %m 互配t '形狀與其他的構件相 裝置ω之共振i彈率普的U共振現象。換吕之，可自由地進行驅動 15 作’故谢職置= 巧狀的第1及第2移動體（移動轴） 擦振動構件）Η摩擦結合。在振動摩擦部摩 於刖後方向Χ之前端，於該振動摩擦部14與棒狀、的第】移動軸 9 200947098 ί大第;摩擦面)’形成有第1剖面v字 2剖面V字狀的溝14e。 1第2摩擦面）’形成有第 動體ί頭可動部具備：用以藉由棒狀的第1及第2移 的i2溝: 彈箬Η 1移動體（移動軸）121推壓的推壓力。換言之， 第1及第2^可產生作為於振動摩擦部（振動構件）14與 體（移動轴）121、122之間施加摩擦力的推壓裝The drive device 10 shown in the figure is disposed in a casing (not shown), and includes a cover (not shown) and a lower base (not shown) having a cup shape. A two-body, a stationary member (heavy hammer) n is mounted on the lower base. On the upper surface of the upper cover, there is a cylindrical portion (not shown) having the optical axis Q as a central axis. On the other hand, although the image is not shown in the center of the lower base, the image sensor disposed on the substrate is mounted. This shot is converted into a power by a movable lens (described later). The imaging element is made of, for example, a CCD (charge coupled device) type image sensor, CMOS (complementary metal oxide semieonduetoiO # image sensor, etc.) A movable lens barrel (lens flender, lens holder) 17 that accommodates a driven member is housed in the housing. The movable barrel (lens holder, lens holder) 7 has a lens barrel (for holding the lens barrel) ( The iens barrd) (the lens group (kns café) 18 has a cylindrical tubular portion 17 〇. The lens barrel (lens group) 18 is used to hold the autofocus lens AFL: the cylindrical portion 17 of the lens holder 17 〇 The inner peripheral wall is formed with a notch of a female thread (not shown), and the other side surface is formed with a notch that can be screwed to the male screw (illustrated) of the female screw on the outer peripheral wall of the lens barrel 18. When the lens barrel 18 is mounted on the lens holder 17, the lens barrel 18 is rotated about the optical axis 0 with respect to the cylindrical portion 170 of the lens holder 17 in the direction of the optical axis. Screwing, and housing the lens barrel 18 in the lens The holder 17 is joined to each other by an adhesive or the like. The lens holder 17 has a protruding portion 172 that protrudes outward in the radial direction on the right side of the left-right direction γ of the tubular portion 17 from the optical axis 。. The portion 172 extends in the up-and-down direction 〇 in parallel with the light 7 200947098=〇. On the rear wall of the ridge portion 172, the body is moved (moving) 121 °, and the 帛 1 movement _ η holds 1117 has a cylindrical shape The rear end of the portion 17G is located at the left extending portion m of the left-right direction Y. The locking portion 174a of the portion Ha is provided in the extending portion m. The elastic t 15 is along the line 174; 'the 5th direction is the left-right direction γ The right side of the second moving body _ axis is fixed to the b-th fixed (2) 2, and the second moving body 122 is also formed in a cylindrical shape. In the figure ο ^ 7 1J, 刖俊 direction X 刖Party) push. On the i-th axis) 21 and the second moving body (moving axis) I. Between, lost ^ have long pieces) two =: neutral and the second 2 = 帛 1 paste 121 w face ❹ The frame is only facing the lens. Accordingly, the lens movable portion can be described for the lens driving portion of the head drive unit. Mirror laminated motor _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The first end face of the element (4) is the combination of the first end face 2/i system 8 200947098 U and the stationary member. The agent is an ampoule member 19 to adhere the upper jaw of the laminated piezoelectric element 13; ηΐΛ ^ (upper end face) 13b. That is, combined with the vibration transmitting member ====fat) combined (received) ο η not only its material selection =: (vibrating member) fruit 'can improve the mechanical strength of the motor mechanical conversion element free junction (vibrating member) 14 Production I...曰(four) turn)13 and vibration friction part ❹ l ,(^CC). %m Interacting with the t' shape and other component phase devices ω resonance i-expansion U-resonance phenomenon. In the case of Lu, it is free to drive. 15 "Desirable position = 1st and 2nd moving body (moving shaft) with a clever shape). The vibrating friction portion is wound in the front end of the crucible, and the vibrating friction portion 14 and the rod-shaped first moving shaft 9 200947098 are large; the friction surface) is formed with a first cross-section v-shaped 2 cross-section V-shaped. Ditch 14e. 1st second friction surface)' is formed with a first movable body. The movable portion of the first movable portion is provided with a push for pressing the first and second movable i2 grooves of the bar shape: the magazine 1 moving body (moving axis) 121 pressure. In other words, the first and second portions can be used as a pressing device for applying a frictional force between the vibration friction portion (vibration member) 14 and the body (moving shaft) 121 and 122.
元件於振動摩擦部（振動構件）14係在與積層麼電 成^ Λ伸垂直相交的方向上於其彼此對向的兩端面（形 „擦面的第1及第2剖面v字狀溝14b、14c)， =第1及第2移動體（移動軸）⑵、122夾持，故可限制鏡頭 位置，並且可抑制鏡頭可動部繞著第1移動體（移動轴） 又’於圖示的實施型態中，第i移動體121和第2移動體122 相同的材料構成。其結果，可使作用於第1移動體121與振 ^擦部14之第1摩擦面（第i剖面v字狀溝刚之間的第i ，擦力、和作用於第2移動體122與振動摩擦部14之第2摩擦面 ^第2剖面V字狀溝14c)之間的第2摩擦力相等。依此，可穩 定地驅動鏡頭可動部。 再者’可將彈簧15的有效長度Ls設計成較長。因此，即使 彈簧15的尺寸或組裝尺寸參差不齊，亦可減少對負載的影響。其 結果’可使各製品之功能的參差不齊減少而可製造驅動裝置1〇。 200947098 在振動摩擦部Μ +，於鋪摩The vibrating friction portion (vibrating member) 14 is a pair of end faces that face each other in a direction perpendicular to the stacking direction (the first and second cross-sectional v-shaped grooves 14b of the rubbing surface) , 14c), = the first and second moving bodies (moving axes) (2), 122 are clamped, so that the lens position can be restricted, and the movable portion of the lens can be suppressed from being around the first moving body (moving axis). In the embodiment, the i-th moving body 121 and the second moving body 122 are made of the same material. As a result, the first friction surface acting on the first moving body 121 and the vibrating portion 14 (the i-th cross-section v-shaped) can be applied. The second frictional force between the first i-thickness between the groove and the second movable body 122 and the second friction surface of the vibration friction portion 14 and the second cross-section V-shaped groove 14c) is equal. Therefore, the movable portion of the lens can be stably driven. Further, the effective length Ls of the spring 15 can be designed to be long. Therefore, even if the size or assembly size of the spring 15 is uneven, the influence on the load can be reduced. 'The drive unit can be manufactured by reducing the unevenness of the functions of the respective products. 200947098 In the vibration friction part Μ +, Yu Pu
14b。藉由振動摩擦部14之笛不J 體⑵的二直線接觸，二:;;==第1移動 並且且有可接」瑪）優良的摩擦驅動， ==範:;剖，_=度= 〇 ❹ ίm :古，部14之第2剖面v字狀的溝14c與 面）的接觸狀離ί:線接觸，可使第2摩擦結合部（第2摩擦 3ΐϊ，ί2、疋，可得到再現性優良的摩擦驅動，並且具有 果。iZm移動體122之一軸移動體的直線前進移動性之效 180度的範^ί佳剖面V字狀的溝W的角度係以於3G度至未滿 麾擦i u將ί 1·及? 2移動體121、122藉由彈菁15推壓至振動 純i胸ΐ此了由將第1及第2移動體121、122分別推壓至 5摩不Q|U4、y 1剖面ν字狀的溝14b與第2剖面ν字狀的 L划L’、可形成二個零件（第1及第2移動體121、122、振動摩 擦部14)之穩定的線接觸。 ，頭驅動部和鏡頭可動部係如圖1所示般相對於光軸〇並 置。因此，可使驅動裝置10低高度化。 之!參照圖4 ’就供給至積層壓電元件13的電流與產生於 積層菌電兀件!3的位移進行說明。此外，圖4係與上述專利文獻 H 5，圖示相同。圖4 (A)及⑻係分別表示藉由驅動電 路^未圖不）供給至積層壓電元件13之電流的變化、和積層壓電 元件13的位移。 ^圖4 (A)所示’於積層壓電元件13交互地流動大電流（正 向）與特定的固定電流（負向）。於此種狀況下，如圖4 (B)所 11 200947098 不j層>1電讀13會交互地產生對應於大電流（正向）的急遽 位移（延伸）、和對應於固定電流（負向）_定位移（收縮）。 ’在積層愿電元件13施加矩形波電流⑽4 (A))，以 對積層㈣元件13產生棘波狀的位移（伸縮）（圖4 (Β))β 々油H圖4外，亦參照圖1 ’說明驅動裝置10的動作。首先， 就使鏡f可動部沿著上下方向ζ向下移動時的動作進行說明。 士^先Β’,如圖4 (Α)所示，若在積層愿電元件13流動正向的 J二4⑻所示’積層壓電元件13會急速地產生厚 $ ^ '申位移。其結果，振動摩擦部14會沿著鏡頭的光軸〇 ο iζ)向上急速地軸。鱗，嫌辆可動部（第 部η轉ί Hi2 )，藉由其慣性力而勝（大）過振動摩擦 第移動體12卜122之間的摩擦力，實質上 知留在其原來位置，故沒有移動。 固定:iA)所示，若在積_電元件13流動負向的 元件13會緩緩地產生厚度方向的收縮位 ，其、'、。果’振動摩擦部14會沿著光軸〇方向（上下 ❹ 體動-。士此客時，由於振動摩擦部14與棒狀第1及第2移動 摩捧力而姓^產生於其等間之接觸面（第1及第2摩擦面）的 Μ故部（第1及第2移動體121、122)會 =動摩擦σΜ4 一起實質地沿著光軸〇方向（上下方向z)向下 和二13 動正向的大電流 mi疋電流，以對積職電元件13交互地產生延神 if上=移’可使鏡頭保持器17 (鏡頭筒18)沿著光軸3 向（上下方向Z)連續地向下移I 神1J方 ，使鏡頭可動部沿著光轴〇方向（上下方向 層=_流動上動大時電 成為=體行 12 200947098 mm〕。作為壓電材料，係使用如ρζτ的低Qm材。藉由將厚度2〇 〔卿〕的壓電材料與厚度2〔μηι〕的内部電極呈梳形交互地積層 50層’而製造積層壓電元件13。而且，積層壓電元件13的有效 内邛電極尺寸為0.6〔mm〕x〇.6〔mm〕。換言之，在位於積層麼 電元彳ί 13之有效内部電極的外側之周邊部，存在有寬度0.15〔 _ 〕的壤狀死（無感應）區部分（空區（clearance))。 在圖1至圖3所示的驅動裝置1〇中，第1移動體121與可動 鏡筒（鏡頭保持器、鏡頭支持體）17係分別構成並相互固著，但 f可如圖5所示的驅動裝置ι〇Α般，將第丨移動體121與可動鏡 筒（，頭保持器、鏡頭支持體）17 一體地構成。於此情況下，可 ❹動鏡筒（鏡頭保持器、鏡頭支持體）17與第1移動體121係以相 同的材料構成》 參照圖6至圖8，就本發明第2實施型態之驅動裝置ιοΒ進 行說明。圖6係驅動裝置l〇B的立體圖。圖7係驅動裝置1〇B的 右侧面圖。圖8係將使用於驅動裝置ι〇Β的振動傳達構件19A， $振動摩擦部14和積層壓電元件（電機機械轉換元件）13 —起顯 示的側剖面圖。此處，如圖6及圖7所示，使用直交座標系（X、 Y Z)。在圖6及圖7圖示的狀態，於直交座標系（X、^、z) 中，X轴為前後方向（深度方向），γ軸為左右方向（寬度方向）， 〇 Ζ軸為上下方向（高度方向）。 除了圖示的驅動裝置10Β之振動傳達構件19如後所述般地變 傳達構件舰，並且可動鏡筒（鏡聰持器、鏡頭支持 體)一及第1移動體如後述般地變更外，其餘部分具有與圖丨至圖3 動裝置1()同樣的構成。因此，於可動鏡筒（鏡頭保持器、 兄頭支持體）及第1移動體，分別附註17Α及121Α的參照符號。 可動鏡筒（鏡頭保持器、鏡頭支持體）17Α除了突 條分與圖1至圖3所示 鏡頭支持體）17具有15]樣的構成。突條部口2Α的長 13 200947098 ί較突條部172短。亦即，突條部職係形成於筒狀箱的上 圖1 1移動體12U的長度亦較 1至圖振咖魏（尺寸）亦較圓 (電^械=====’於_壓電元件 ⑼’於與振動摩^部的對向面形成有第1凹部 192。因此，於第凹 14^的對向面形成有第2凹部 ο 14 的下:面構=9::== :Ϊ:=:)。20的塗佈區域明確區分。依此，可提升‘ ❹ ^，如圖8所示，以黏著劑（黏著樹脂）2 =5=?3:Ϊ面二與積層壓電元件(電機機械轉“ 傳麟件祖社端=與 綱議細旨）2G亦__ ^此，可將藉由積層壓電元件（電機機械 動摩擦部Μ，以良好的效率傳達至第i及第2移動=(牛移=牛1 200947098 121Α、121 〇 $ 6及圖7所示的驅動裝置10Β中，第1移動體121Α與可 (鏡頭保持器、鏡頭支持體）17Α係分別構成並相互固著， 如圖9所示的驅動裝置WC般，將第1移動體121Λ與可 &二=(鏡頭保持器、鏡頭支持體）17Α—體地構成。此時，可 鏡頭保持器、鏡頭支持體）17Α與第1移動體121Α係以 相同的材料構成。 、黃舱Ϊ上，係就本發明藉由其較佳的實施型態進行說明，惟在不 還離本發明之精神的範_，該行業者_可進行各種的變更。 Ο 〇 【圖式簡單說明】 Ξ 表示本發明第1實施型態之驅動裝置的立體圖； 所#驅動裝置的主要部分予以放大顯示的部分放 =3係圖1所示之驅動裝置之主要部分的侧面圖； 以皮說：給至積層壓電元件之電流與產生於積層 =5係表示圖丨所示之驅練置之蚊_立細； 圖6係表示本發㈣2實施鶴之 圖7係圖6所示之驅動裝置的右側⑽立顚， =8係將朗棚6所紅_裝置的振動 g和積驗電耕（賴频魏树）—_示賴=動圖摩 圖9係表示圖6所示之驅動裝置的變更例之立體圖。 【主要元件符號說明】 10、10A、10B、10C 驅動装置 11 13 13a 靜止構件 機械轉換元件)14b. By vibrating the friction portion 14 of the flute, the two linear contacts of the body (2), two:;; = = first movement and there is a good friction drive, == Fan:; section, _= degree = 〇❹ ίm : The contact between the v-shaped groove 14c and the surface of the second section of the section 14 is in contact with the line: the second friction joint (the second friction 3ΐϊ, 疋2, 疋, can be reproduced) Excellent friction drive, and fruit. The linear forward mobility of the one-axis moving body of the iZm moving body 122 is 180 degrees. The angle of the V-shaped groove W is from 3G to less than 麾. The wiper iu 1· and ? 2 the moving bodies 121 and 122 are pressed by the elastic cyanine 15 to the vibrating pure i-chest, and the first and second moving bodies 121 and 122 are respectively pressed to 5 U4, y 1 cross-section groove 14b and second cross-section U-shaped L-shaped L', forming a stable line of two parts (first and second moving bodies 121, 122, vibration friction portion 14) The head driving portion and the lens movable portion are juxtaposed with respect to the optical axis 如图 as shown in Fig. 1. Therefore, the driving device 10 can be made lower in height. It is supplied to the laminated piezoelectric element 13 with reference to Fig. 4'. Current The displacement generated in the laminated micro-electrode device 3 will be described. Fig. 4 is the same as the above-described Patent Document H 5, and Fig. 4 (A) and (8) respectively show that the driving circuit is not provided. The change in the current to the laminated piezoelectric element 13 and the displacement of the laminated piezoelectric element 13. As shown in Fig. 4(A), the laminated piezoelectric element 13 alternately flows a large current (forward direction) with a specific fixed current (negative direction). Under such conditions, as shown in Fig. 4(B), 11 200947098, no j layer > 1 electric reading 13 will interactively generate a sharp displacement (extension) corresponding to a large current (forward), and correspond to a fixed current (negative) To) _ positioning shift (shrink). 'A rectangular wave current (10) 4 (A) is applied to the laminated electric component 13 to cause a spike-like displacement (expansion) to the laminated (four) element 13 (Fig. 4 (Β)) β 々 oil H Fig. 4, also referred to 1 ' describes the operation of the drive unit 10. First, an operation when the movable portion of the mirror f is moved downward in the vertical direction will be described. As shown in Fig. 4 (Α), if the layered piezoelectric element 13 flows in the positive direction of the conductor element 13, the laminated piezoelectric element 13 will rapidly generate a thickness of $^'. As a result, the vibration friction portion 14 is rapidly slid upward along the optical axis of the lens. The scale, the movable part of the vehicle (the first part η turns to ί Hi2), by its inertial force, wins (large) the friction between the moving body 12 and 122, and is essentially left in its original position. No movement. Fixing: iA), if the element 13 flowing in the negative direction of the product_electric element 13 gradually produces a contraction position in the thickness direction, it is ',. If the vibration friction portion 14 is along the optical axis ( direction (the upper and lower ❹ body movements - when the guest is in the guest, the vibration friction portion 14 and the rod-shaped first and second movement friction forces are generated by the same The contact portions (the first and second movable surfaces 121 and 122) of the contact surfaces (the first and second friction surfaces) are in the direction of the optical axis ( (the vertical direction z) and the second 13 The positive current of the large current mi疋 current, in order to interactively generate the extension of the electric component 13 to make the lens holder 17 (lens barrel 18) along the optical axis 3 (up and down direction Z) Continuously move the I God 1J side downward so that the lens movable part is along the optical axis ( direction (the upper and lower direction layer = _ when the flow moves up to become the body line 12 200947098 mm). As the piezoelectric material, the system uses ρζτ A low-Qm material is produced by laminating a piezoelectric material having a thickness of 2 Å and a thickness of 2 [μηι] in a comb shape to form a laminated piezoelectric element 13. Further, a laminated piezoelectric element is produced. The effective internal electrode size of 13 is 0.6 [mm] x 〇 .6 [mm]. In other words, it is within the effective range of the laminated layer 彳 13 In the peripheral portion of the outer side of the electrode, there is a portion (clearance) of a dead (non-inductive) region having a width of 0.15 [ _ ]. In the driving device 1 图 shown in Figs. 1 to 3, the first movement The body 121 and the movable barrel (lens holder, lens holder) 17 are respectively configured and fixed to each other, but f can be used as the driving device shown in FIG. 5 to move the second moving body 121 and the movable barrel (The head holder, the lens holder) 17 is integrally formed. In this case, the movable barrel (lens holder, lens holder) 17 and the first movable body 121 are made of the same material. 6 to Fig. 8, a description will be given of a driving device ιοΒ according to a second embodiment of the present invention. Fig. 6 is a perspective view of the driving device 10B. Fig. 7 is a right side view of the driving device 1B. Fig. 8 is used. A side cross-sectional view of the vibration transmitting member 19A, the vibration friction portion 14 and the laminated piezoelectric element (motor mechanical conversion element) 13 of the driving device ι. Here, as shown in FIGS. 6 and 7, Straight coordinate system (X, YZ). In the state shown in Figures 6 and 7, in the orthogonal coordinate system In (X, ^, z), the X axis is the front-rear direction (depth direction), the γ axis is the left-right direction (width direction), and the 〇Ζ axis is the vertical direction (height direction). The member 19 is changed to convey the member ship as will be described later, and the movable lens barrel (mirror holder, lens holder) and the first moving body are changed as described later, and the remaining portions have movements from FIG. 3 to FIG. The device 1 () has the same configuration. Therefore, reference numerals of 17 Α and 121 附注 are attached to the movable lens barrel (lens holder, the keeper support) and the first movable body. The movable lens barrel (lens holder, lens holder) 17] The projection 17 has a configuration similar to that of the lens holder 17 shown in FIGS. 1 to 3. The length of the spurs is 2 2009 13 200947098 ί is shorter than the ribs 172. That is to say, the spurs are formed on the top of the cylindrical box. The length of the moving body 12U is also relatively rounder than that of the figure Zhenweiwei (size) (electrical machinery =====' The electric element (9)' has a first recess 192 formed on the opposing surface of the vibrating portion. Therefore, the second recess ο 14 is formed on the opposing surface of the recess 14: surface configuration = 9::== :Ϊ:=:). The coating area of 20 is clearly distinguished. According to this, the ' ❹ ^ can be improved, as shown in Fig. 8, with adhesive (adhesive resin) 2 = 5 = ? 3: Ϊ face two and laminated piezoelectric elements (motor mechanical transfer " 传麟件祖社端 = with Outline of the project) 2G is also __ ^ This can be conveyed to the i-th and second movements with good efficiency by laminating piezoelectric elements (motor mechanical friction parts ( = (牛移=牛1 200947098 121Α, 121 In the driving device 10A shown in FIG. 7, the first moving body 121A and the (lens holder, lens holder) 17 are respectively configured and fixed to each other, as in the driving device WC shown in FIG. The first movable body 121A is configured to be compatible with the second lens (lens holder, lens holder). In this case, the lens holder and the lens holder 17Α are identical to the first moving body 121. The present invention is described by its preferred embodiment, but the invention can be variously modified without departing from the spirit of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3 is a perspective view showing a driving device according to a first embodiment of the present invention; The enlarged portion is shown in the side view of the main part of the driving device shown in Fig. 1; the skin is said: the current supplied to the laminated piezoelectric element is generated from the laminate shown in Fig. 5 Fig. 6 shows the right side (10) of the driving device shown in Fig. 6 of the present invention (4), and the vibration and g of the device. Electric cultivating (Lai Wei Wei Shu) - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 13a stationary component mechanical conversion element)
200947098 13b 14 14a 14b 、 14c 15 15a 15b 17、17A 18 19、19A 〇 19a 19b 20 121 ' 121A 122 170 172、172A 174 174a 191 ' 192 ❹ O AFL 第2端面（上端面） 振動摩擦部（振動構件） 下端面 剖面V字狀的溝 彈簧 第1端部 第2端部 可動鏡筒（鏡頭保持器、鏡頭支持體） 鏡頭筒（鏡頭組） 振動傳達構件 下端面 上端面 黏著劑（黏著樹脂） 第1移動體 第2移動體 筒狀部 突條部 延伸部 卡定溝 凹部 鏡頭的光軸 自動對焦鏡頭 16200947098 13b 14 14a 14b , 14c 15 15a 15b 17 , 17A 18 19 , 19A 〇 19a 19b 20 121 ' 121A 122 170 172 , 172A 174 174a 191 ' 192 ❹ O AFL 2nd end face (upper end face ) Vibration friction part (vibration member Lower end surface section V-shaped groove spring First end part Second end movable lens barrel (lens holder, lens holder) Lens barrel (lens group) Vibration transmitting member lower end surface upper end surface adhesive (adhesive resin) 1 moving body second moving body tubular portion protruding portion extending portion locking groove concave portion lens optical axis autofocus lens 16