TWI452805B - Voice coil motor assembly - Google Patents
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Description
本發明涉及光學防抖技術,特別涉及一種應用於相機模組中之音圈馬達組合。 The present invention relates to optical image stabilization technology, and more particularly to a voice coil motor assembly for use in a camera module.
相機模組通過快門控制光線投射到影像感測器之時間長短,比如,快門速度為1/2秒時,表示影像感測器感光之時間為1/2秒,若在這1/2秒內由於抖動之原因同一束光線在影像感測器上發生移動,影像感測器就會記錄下該光線之運動軌跡,使拍攝之照片模糊不清。為補償由於抖動造成之光線偏移量,上世紀九十年代開始出現利用影像穩定系統以防止抖動之相機模組。具體請參閱Cardani B.等人2006年4月在Control Systems Magazine,IEEE(Volume 26,Issue 2,Page(s):21-22)上發表之論文“Optical image stabilization for digital cameras”。 The camera module controls the length of time that the light is projected onto the image sensor through the shutter. For example, when the shutter speed is 1/2 second, the image sensor is sensitive to 1/2 second, if within 1/2 second. Due to the jitter, the same beam of light moves on the image sensor, and the image sensor records the motion of the light, making the captured picture blurred. In order to compensate for the amount of light offset caused by jitter, camera modules using image stabilization systems to prevent jitter began to appear in the 1990s. For details, please refer to the paper "Optical image stabilization for digital cameras" published by Cardani B. et al., April 2006, Control Systems Magazine, IEEE (Volume 26, Issue 2, Page(s): 21-22).
相機模組之防抖技術主要分為電子防抖與光學防抖兩大類。其中,電子防抖主要指在相機模組上採用強制提高影像感測器之感光參數同時加快快門並針對影像感測器上大約2/3面積上取得之圖像進行分析,然後利用邊緣圖像進行補償之防抖技術,但由於在圖像處理過程中不可避免之要拋棄部分圖像資訊,因此實際上電子防抖技術降低影像感測器之利用效率。 The anti-shake technology of the camera module is mainly divided into two categories: electronic anti-shake and optical anti-shake. Among them, the electronic image stabilization mainly refers to the use of the camera module to force the sensitivity of the image sensor while speeding up the shutter and analyzing the image obtained on about 2/3 of the area on the image sensor, and then using the edge image. The anti-shake technology is compensated, but since some image information is inevitably discarded in the image processing process, the electronic image stabilization technology actually reduces the utilization efficiency of the image sensor.
光學防抖技術又可分為成像器件防抖與鏡頭防抖兩類。成像器件 防抖主要指在感知相機模組抖動後,改變影像感測器之位置或角度來保持成像之穩定性,但成像器件防抖需採用高精度之機構改變影像感測器之位置或角度,相應地大大增加相機模組之製造成本。鏡頭防抖主要指在鏡頭模組中設置專門之防抖補償鏡片,根據相機模組之抖動方向與程度,補償鏡片相應調整位置與角度,使光路保持穩定,但增加額外之補償鏡片會增加相機模組在光軸方向之總高度,不利於相機模組之輕薄化以及在輕薄手機上之推廣應用。 Optical image stabilization technology can be divided into two types: imaging device anti-shake and lens anti-shake. Imaging device Anti-shake mainly refers to changing the position or angle of the image sensor to maintain the stability of the image after sensing the camera module jitter. However, the anti-shake of the imaging device requires a high-precision mechanism to change the position or angle of the image sensor. The ground greatly increases the manufacturing cost of the camera module. The lens anti-shake mainly refers to setting a special anti-shake compensation lens in the lens module. According to the direction and degree of the camera module, the lens is adjusted to adjust the position and angle to keep the optical path stable, but adding additional compensation lens will increase the camera. The total height of the module in the direction of the optical axis is not conducive to the thinning of the camera module and its promotion on thin and light mobile phones.
有鑑於此,提供一種無需設置專門之防抖補償鏡片、結構簡單且可有效降低相機模組在光軸方向之總高度之音圈馬達組合實屬必要。 In view of the above, it is necessary to provide a voice coil motor combination that does not require a special anti-shake compensation lens, has a simple structure, and can effectively reduce the total height of the camera module in the optical axis direction.
下面將以具體實施例說明一種音圈馬達組合。 A voice coil motor combination will now be described in the context of a specific embodiment.
一種音圈馬達組合,包括框架、電磁驅動單元、及收容於該框架內之音圈馬達,該音圈馬達組合還包括複數彈性臂,該彈性臂具有相對之第一端與第二端,每一彈性臂之第一端連接於該音圈馬達,第二端連接於該框架從而將該音圈馬達彈性支撐在該框架以使該音圈馬達可在該電磁驅動單元驅動下在框架內垂直於音圈馬達軸向之平面內移動。 A voice coil motor assembly includes a frame, an electromagnetic drive unit, and a voice coil motor housed in the frame, the voice coil motor assembly further comprising a plurality of elastic arms having opposite first and second ends, each a first end of a resilient arm is coupled to the voice coil motor, and a second end is coupled to the frame to resiliently support the voice coil motor to the frame such that the voice coil motor is vertically movable within the frame by the electromagnetic drive unit Moves in the plane of the axial direction of the voice coil motor.
相較於先前技術,本技術方案之音圈馬達組合利用複數彈性臂之第一端連接於該音圈馬達,第二端連接於該框架以將該音圈馬達彈性支撐在該框架,從而使該音圈馬達可在該電磁驅動單元驅動下在框架內垂直於音圈馬達軸向之平面內移動,並且該音圈馬達自身可驅動其內之鏡片沿光軸方向移動進行對焦,所以該音圈馬 達組合既具有自動對焦功能,又可對相機模組之抖動進行修正,且無需設置專門之防抖補償鏡片,其結構簡單且可有效降低相機模組在光軸方向之總高度,有利於相機模組之薄型化,且節省使用防抖補償鏡片之成本。 Compared with the prior art, the voice coil motor combination of the present technical solution utilizes a first end of a plurality of elastic arms connected to the voice coil motor, and a second end connected to the frame to elastically support the voice coil motor in the frame, thereby enabling The voice coil motor can be moved in a plane perpendicular to the axial direction of the voice coil motor in the frame by the electromagnetic driving unit, and the voice coil motor itself can drive the lens therein to move in the optical axis direction to focus, so the sound Circle horse The combination has both auto-focus function and camera lens shake correction, and no special anti-shake compensation lens is required. The structure is simple and can effectively reduce the total height of the camera module in the optical axis direction, which is beneficial to the camera. The module is thinner and saves the cost of using anti-shake compensation lenses.
100、200、300‧‧‧音圈馬達組合 100, 200, 300‧‧‧ voice coil motor combination
10、210‧‧‧框架 10, 210‧‧‧ framework
20‧‧‧電磁驅動單元 20‧‧‧Electromagnetic drive unit
30、230、330‧‧‧音圈馬達 30, 230, 330‧‧ ‧ voice coil motor
40‧‧‧彈性臂 40‧‧‧Flexible arm
31‧‧‧可動元件 31‧‧‧ movable components
32、232、332‧‧‧固定元件 32, 232, 332‧‧‧ fixed components
33‧‧‧第一彈片 33‧‧‧First shrapnel
34‧‧‧第二彈片 34‧‧‧Second shrapnel
301、401、501‧‧‧第一側面 The first side of 301, 401, 501‧‧
302、402、502‧‧‧第二側面 302, 402, 502‧‧‧ second side
303、403、503‧‧‧第三側面 303, 403, 503‧‧‧ third side
304、404、504‧‧‧第四側面 304, 404, 504‧‧‧ fourth side
321‧‧‧第一置磁部 321‧‧‧First magnetic part
322‧‧‧第二置磁部 322‧‧‧Second magnetic part
11‧‧‧上框 11‧‧‧Top box
12‧‧‧下框 12‧‧‧ Lower frame
110、120‧‧‧框體 110, 120‧‧‧ frame
111、121、211‧‧‧第一固定腳 111, 121, 211‧‧‧ first fixed foot
112、122、212‧‧‧第二固定腳 112, 122, 212‧‧‧ second fixed foot
113、123、213‧‧‧第三固定腳 113, 123, 213‧‧‧ third fixed foot
114、124、214‧‧‧第四固定腳 114, 124, 214‧‧‧ fourth fixed foot
1011‧‧‧卡槽 1011‧‧‧ card slot
1021‧‧‧卡合凸起 1021‧‧‧Snap bulge
101‧‧‧第一收容部 101‧‧‧First Housing Department
102‧‧‧第二收容部 102‧‧‧ Second Housing Department
21‧‧‧第一磁鐵組件 21‧‧‧First magnet assembly
22‧‧‧第二磁鐵組件 22‧‧‧Second magnet assembly
23‧‧‧第一線圈組件 23‧‧‧First coil assembly
24‧‧‧第二線圈組件 24‧‧‧second coil assembly
41、241、311‧‧‧第一彈性臂 41, 241, 311‧‧‧ first elastic arm
42、242、312‧‧‧第二彈性臂 42,242,312‧‧‧Second elastic arm
411、421、2411、2421‧‧‧第一彈性部 411, 421, 2411, 2421‧‧‧ first elastic part
412、422、2412、2422‧‧‧第二彈性部 412, 422, 2412, 2422‧‧‧ second elastic part
331‧‧‧第一延伸部 331‧‧‧First Extension
341‧‧‧第二延伸部 341‧‧‧Second extension
1101、1201‧‧‧第一槽口 1101, 1201‧‧‧ first notch
1102、1202‧‧‧第二槽口 1102, 1202‧‧‧ second slot
1111、1211、201‧‧‧第一凸塊 1111, 1211, 201‧‧‧ first bump
1112、1212、202‧‧‧第二凸塊 1112, 1212, 202‧‧‧ second bump
413‧‧‧卡合部 413‧‧‧Clock Department
4131‧‧‧凸起 4131‧‧‧ bumps
4132、2401、2402、305‧‧‧卡合孔 4132, 2401, 2402, 305‧‧‧ engaging holes
313‧‧‧第三彈性臂 313‧‧‧ Third elastic arm
314‧‧‧第四彈性臂 314‧‧‧4th elastic arm
圖1係本技術方案第一實施例提供之音圈馬達組合之示意圖。 FIG. 1 is a schematic diagram of a voice coil motor assembly provided by a first embodiment of the present technical solution.
圖2係圖1之分解圖。 Figure 2 is an exploded view of Figure 1.
圖3係本技術方案第一實施例之磁鐵元件與線圈元件之排列示意圖。 3 is a schematic view showing the arrangement of a magnet element and a coil element in the first embodiment of the present technical solution.
圖4係本技術方案第一實施例之線圈元件通電狀態示意圖。 Fig. 4 is a schematic view showing the energization state of the coil component of the first embodiment of the present technical solution.
圖5係本技術方案第二實施例提供之音圈馬達組合之示意圖。 FIG. 5 is a schematic diagram of a voice coil motor assembly provided by a second embodiment of the present technical solution.
圖6係本技術方案第三實施例提供之音圈馬達組合之音圈馬達與彈性臂之連接示意圖。 6 is a schematic view showing the connection between the voice coil motor and the elastic arm of the voice coil motor combination provided by the third embodiment of the present technical solution.
下面將結合附圖與實施例對本技術方案之音圈馬達組合作進一步詳細說明。 The cooperation of the voice coil motor group of the present technical solution will be further described in detail below with reference to the accompanying drawings and embodiments.
請參閱圖1~2,本技術方案第一實施例提供之音圈馬達組合100,包括框架10、電磁驅動單元20、收容於該框架10內之音圈馬達30、及複數彈性臂40。該彈性臂40具有相對之第一端與第二端。每個彈性臂40之第一端連接於該音圈馬達30,第二端連接於框架10從而將音圈馬達30彈性支撐在該框架10以使該音圈馬達30可在電磁驅動單元20驅動下在框架10內垂直於音圈馬達30軸向之平面內移動。 Referring to FIGS. 1 and 2 , the voice coil motor assembly 100 according to the first embodiment of the present invention includes a frame 10 , an electromagnetic drive unit 20 , a voice coil motor 30 housed in the frame 10 , and a plurality of elastic arms 40 . The resilient arm 40 has opposite first and second ends. A first end of each resilient arm 40 is coupled to the voice coil motor 30, and a second end is coupled to the frame 10 to resiliently support the voice coil motor 30 to the frame 10 such that the voice coil motor 30 is drivable at the electromagnetic drive unit 20. The lower movement in the frame 10 is perpendicular to the axial direction of the voice coil motor 30.
音圈馬達30包括可動元件31、固定元件32以及分別將可動元件31兩端彈性連接於固定元件32兩端之第一彈片33與第二彈片34。可動組件31內收容有鏡片(圖未示),可動元件31收容於固定元件32內,可動元件31可相對固定元件32在音圈馬達30軸向移動以帶動鏡片相對固定元件32移動進行對焦。音圈馬達30包括相對之第一側面301與第二側面302,以及相對之第三側面303與第四側面304。第一側面301與第二側面302相互平行且垂直於第一彈片33與第二彈片34,第三側面303與第四側面304相互平行且垂直於第一彈片33與第二彈片34。第一側面301與第三側面303垂直。音圈馬達30在第一側面301與第二側面302向內分別開設有一第一置磁部321,在第三側面303與第四側面304向內分別開設有一第二置磁部322。 The voice coil motor 30 includes a movable member 31, a fixing member 32, and a first elastic piece 33 and a second elastic piece 34 that elastically couple both ends of the movable element 31 to both ends of the fixed member 32, respectively. A lens (not shown) is housed in the movable unit 31. The movable element 31 is housed in the fixed element 32. The movable element 31 is axially movable relative to the fixed element 32 in the voice coil motor 30 to move the lens relative to the fixed element 32 for focusing. The voice coil motor 30 includes a first side 301 and a second side 302 opposite thereto, and a third side 303 and a fourth side 304 opposite thereto. The first side surface 301 and the second side surface 302 are parallel to each other and perpendicular to the first elastic piece 33 and the second elastic piece 34. The third side surface 303 and the fourth side surface 304 are parallel to each other and perpendicular to the first elastic piece 33 and the second elastic piece 34. The first side 301 is perpendicular to the third side 303. The voice coil motor 30 has a first magnetic portion 321 defined inwardly on the first side surface 301 and the second side surface 302 , and a second magnetic portion 322 is defined in the third side surface 303 and the fourth side surface 304 .
框架10包括上框11與下框12。上框11包括框體110以及垂直向同一側延伸之第一固定腳111、第二固定腳112、第三固定腳113、第四固定腳114。本實施例中,框體110為一正方形框體,第一固定腳111、第二固定腳112、第三固定腳113、第四固定腳114分別從框體110之四個頂角垂直向框體100同一側延伸。 The frame 10 includes an upper frame 11 and a lower frame 12. The upper frame 11 includes a frame body 110 and first fixing legs 111, second fixing legs 112, third fixing legs 113, and fourth fixing legs 114 extending perpendicularly to the same side. In this embodiment, the frame body 110 is a square frame body, and the first fixing leg 111, the second fixing leg 112, the third fixing leg 113, and the fourth fixing leg 114 are respectively perpendicular to the frame from the four top corners of the frame body 110. The body 100 extends on the same side.
下框12包括框體120以及垂直向該框體120同一側延伸之第一固定腳121、第二固定腳122、第三固定腳123、第四固定腳124。本實施例中,框體120為一正方形框體,第一固定腳121、第二固定腳122、第三固定腳123、第四固定腳124分別從框體120之四個頂角垂直向框體100同一側延伸。 The lower frame 12 includes a frame body 120 and first fixing legs 121 , second fixing legs 122 , third fixing legs 123 , and fourth fixing legs 124 extending perpendicularly to the same side of the frame body 120 . In this embodiment, the frame 120 is a square frame, and the first fixing leg 121, the second fixing leg 122, the third fixing leg 123, and the fourth fixing leg 124 are respectively perpendicular to the frame from the four top corners of the frame 120. The body 100 extends on the same side.
第一固定腳111、121上分別形成有相配合之卡合結構,例如本實施例中,第一固定腳111端部靠近框體110中心之一側形成有一卡 槽1011。相應地,第二固定腳121端部靠近框體120中心之一側形成有一卡合凸起1021,因此當第一固定腳111、121接合時,該卡合凸起1021卡設於該卡槽1011中。上框11與下框12其他之固定腳與第一固定腳111、121相似,不再贅述。此外,為防止上框11與下框12在水平方向上滑動,可將位於對角位置上之固定腳上之卡槽(或卡合凸起)設置於相同側,例如,在本實施例中,第一固定腳111與第三固定腳113上之卡槽均形成於靠近框體110中心之一側。為進一步增加上框11與下框12之間卡合之穩定性,還可將相鄰之固定腳上之卡槽(或卡合凸起)形成於不同側,例如,在本實施例中,第一固定腳111之卡槽形成於靠近框體110中心之一側,第二固定腳112與第四固定腳114之卡槽形成於背對框體110之一側。 The first fixing legs 111 and 121 are respectively formed with a matching engaging structure. For example, in the embodiment, a card is formed at one end of the first fixing leg 111 near one side of the center of the frame 110. Slot 1011. Correspondingly, an engaging protrusion 1021 is formed on one side of the end of the second fixing leg 121 near the center of the frame 120. Therefore, when the first fixing legs 111 and 121 are engaged, the engaging protrusion 1021 is engaged in the card slot. 1011. The other fixed legs of the upper frame 11 and the lower frame 12 are similar to the first fixed legs 111 and 121 and will not be described again. In addition, in order to prevent the upper frame 11 and the lower frame 12 from sliding in the horizontal direction, the card slots (or the engaging protrusions) on the fixed legs located at the diagonal positions may be disposed on the same side, for example, in this embodiment. The card slots on the first fixing leg 111 and the third fixing leg 113 are formed on one side of the center of the frame 110. In order to further increase the stability of the engagement between the upper frame 11 and the lower frame 12, the card slots (or the engaging protrusions) on the adjacent fixed legs may be formed on different sides, for example, in this embodiment, The card slot of the first fixing leg 111 is formed on one side of the center of the frame 110, and the card slot of the second fixing leg 112 and the fourth fixing leg 114 is formed on one side of the frame 110.
下框12之第一固定腳121、第二固定腳122、第三固定腳123、第四固定腳124依次與上框11之第一固定腳111、第二固定腳112、第三固定腳113、第四固定腳114配合固定,從而圍合形成第一收容部101與第二收容部102。第一收容部101與第一置磁部321相對,第二收容部102與第二置磁部322相對。 The first fixing leg 121 , the second fixing leg 122 , the third fixing leg 123 , and the fourth fixing leg 124 of the lower frame 12 are sequentially connected to the first fixing leg 111 , the second fixing leg 112 , and the third fixing leg 113 of the upper frame 11 . The fourth fixing leg 114 is fixedly coupled to form the first receiving portion 101 and the second receiving portion 102. The first housing portion 101 faces the first magnetic portion 321 , and the second housing portion 102 faces the second magnetic portion 322 .
電磁驅動單元20包括第一磁鐵元件21、第二磁鐵元件22、與第一磁鐵元件21之磁場耦合以產生安培力之第一線圈元件23及與第二磁鐵元件22之磁場耦合以產生安培力之第二線圈元件24。第一磁鐵元件21收容於第一置磁部321,第二磁鐵元件22收容於第二置磁部322,第一磁鐵元件21、第二磁鐵元件22相互垂直設置。第一線圈元件23收容於第一收容部101,第二線圈元件24收容於第二收容部102。當然,亦可將第一磁鐵元件21與第一線圈元件23 互換位置、將第二磁鐵元件22與第二線圈元件24互換位置。 The electromagnetic driving unit 20 includes a first magnet element 21, a second magnet element 22, a first coil element 23 coupled with a magnetic field of the first magnet element 21 to generate an amperage force, and a magnetic field coupled with the second magnet element 22 to generate an amperage force. The second coil element 24. The first magnet element 21 is housed in the first magnetic portion 321 , and the second magnet element 22 is housed in the second magnetic portion 322 . The first magnet element 21 and the second magnet element 22 are perpendicular to each other. The first coil component 23 is housed in the first housing portion 101 , and the second coil component 24 is received in the second housing portion 102 . Of course, the first magnet element 21 and the first coil element 23 can also be used. The second magnet element 22 and the second coil element 24 are interchanged in position.
本實施例中有兩個第一磁鐵元件21與兩個第二磁鐵元件22。兩個第一磁鐵組件21分別固設於兩相對平行之第一置磁部321內。兩個第二磁鐵元件22分別固設於兩相對平行之第二置磁部322內。相對應地,每一第一磁鐵組件21對應一第一線圈組件23、每一第一磁鐵元件21對應一第二線圈元件24。 In this embodiment, there are two first magnet elements 21 and two second magnet elements 22. The two first magnet assemblies 21 are respectively fixed in the two opposite first magnetic portions 321 . The two second magnet elements 22 are respectively fixed in the two parallel magnetic portions 322 which are opposite in parallel. Correspondingly, each of the first magnet assemblies 21 corresponds to a first coil assembly 23, and each of the first magnet elements 21 corresponds to a second coil element 24.
請參閱圖3~4,本實施例中,每一第一磁鐵組件21相對之第一線圈組件23包括兩個線圈。第一磁鐵組件21為三段式磁鐵,其磁極按S極、N極、S極之方式排列,或者按N極、S極、N極之方式排列。第一磁鐵組件21中間之磁極與兩個線圈相鄰之兩邊相對,兩端之兩個磁極則分別與兩個線圈相遠離之兩邊相對。從而,當第一線圈元件23之兩個線圈分別通以順時針、逆時針之電流時,第一線圈元件23產生之安培力方向一致,可驅動音圈馬達30在垂直於其軸向之平面內移動。同理,第二磁鐵元件22與第二線圈元件24亦可以同樣之方式設置以驅動音圈馬達30在垂直於其軸向之平面內移動。 Referring to FIGS. 3 to 4, in the present embodiment, each of the first magnet assemblies 21 includes two coils relative to the first coil assembly 23. The first magnet assembly 21 is a three-stage magnet, and its magnetic poles are arranged in the form of S poles, N poles, and S poles, or are arranged in the manner of N poles, S poles, and N poles. The magnetic poles in the middle of the first magnet assembly 21 are opposite to the two adjacent sides of the two coils, and the two magnetic poles at the two ends are respectively opposed to the two sides away from the two coils. Therefore, when the two coils of the first coil component 23 are respectively clockwise and counterclockwise, the first coil component 23 generates the same amperage direction, and the voice coil motor 30 can be driven in a plane perpendicular to the axial direction thereof. Move inside. Similarly, the second magnet element 22 and the second coil element 24 can also be arranged in the same manner to drive the voice coil motor 30 to move in a plane perpendicular to its axial direction.
本實施例中,複數彈性臂40包括兩個第一彈性臂41與兩個第二彈性臂42。第一彈性臂41包括第一彈性部411及自第一彈性部411一端延伸而出之第二彈性部412。兩個第一彈性臂41之第一彈性部411分別與該第一延伸部331相對之兩側相連,且分別於第三側面303、第四側面304上方並分別與第三側面303、第四側面304成一銳角延伸。該兩個第一彈性臂41之第二彈性部412與第二側面302相對並與第二側面302成一銳角。優選地,該銳角為5到30度之間之任一角度。 In this embodiment, the plurality of elastic arms 40 include two first elastic arms 41 and two second elastic arms 42. The first elastic arm 41 includes a first elastic portion 411 and a second elastic portion 412 extending from one end of the first elastic portion 411. The first elastic portions 411 of the two first elastic arms 41 are respectively connected to opposite sides of the first extending portion 331 and are respectively above the third side surface 303 and the fourth side surface 304 and respectively opposite to the third side surface 303 and the fourth side. Side 304 extends at an acute angle. The second elastic portion 412 of the two first elastic arms 41 is opposite to the second side surface 302 and forms an acute angle with the second side surface 302. Preferably, the acute angle is any angle between 5 and 30 degrees.
第二彈性臂42包括第一彈性部421及自第一彈性部421一端延伸而出之第二彈性部422。該兩個第二彈性臂42之第一彈性部421分別與該第二延伸部341相對之兩側相連,且分別於第三側面303、第四側面304上方並分別與第三側面303、第四側面304成一銳角延伸。兩個第二彈性臂42之第二彈性部422與第一側面301相對並與第一側面301成一銳角。優選地,該銳角為5到30度之間之任一角度。 The second elastic arm 42 includes a first elastic portion 421 and a second elastic portion 422 extending from one end of the first elastic portion 421 . The first elastic portions 421 of the two second elastic arms 42 are respectively connected to opposite sides of the second extending portion 341, and are respectively above the third side surface 303 and the fourth side surface 304 and respectively opposite to the third side surface 303, The four sides 304 extend at an acute angle. The second elastic portions 422 of the two second elastic arms 42 are opposite to the first side surface 301 and form an acute angle with the first side surface 301. Preferably, the acute angle is any angle between 5 and 30 degrees.
彈性臂40之第二端可採用多種方式固定於框架10上,例如採用螺絲固定,膠水黏貼、或者採用卡合之方式固定,例如在本實施例中為方便固定彈性臂40,框體110靠近第一固定腳111處開設有第一槽口1101,靠近第三固定腳113處開設有第二槽口1102。第一固定腳111與第四固定腳114相對之一側形成有第一凸塊1111。第三固定腳113與第二固定腳112相對之一側形成有第二凸塊1112。框體120靠近第二固定腳122處開設有第一槽口1201,靠近第四固腳124處開設有第二槽口1202。第二固定腳122與第三固定腳123相對之一側形成有第一凸塊1211。第四固定腳124與第一固定腳121相對之一側形成有第二凸塊1212。 The second end of the elastic arm 40 can be fixed to the frame 10 in various manners, for example, by screw fixing, glue bonding, or by snapping. For example, in this embodiment, the elastic arm 40 is fixed for convenience, and the frame 110 is close to A first notch 1101 is defined in the first fixing leg 111, and a second notch 1102 is opened in the vicinity of the third fixing leg 113. A first bump 1111 is formed on a side opposite to the first fixing leg 111 and the fourth fixing leg 114. A second bump 1112 is formed on a side opposite to the third fixing leg 113 and the second fixing leg 112. A first slot 1201 is defined in the frame 120 near the second fixing leg 122, and a second slot 1202 is defined in the vicinity of the fourth fixing leg 124. A first bump 1211 is formed on a side opposite to the third fixing leg 122 and the third fixing leg 123. A second bump 1212 is formed on a side of the fourth fixing leg 124 opposite to the first fixing leg 121.
本實施例中,兩個第一彈性臂41之第二彈性部412分別形成有與上框11、下框12之第一槽口1101、1201相匹配之凸起以及分別與上框11、下框12之第一凸塊1111、1112相匹配之卡合孔,該兩個第二彈性臂42之第二彈性部422分別形成有與上框11、下框12之第二槽口1102、1202相匹配之凸起以及分別與上框11、下框12之第二凸塊1112、1212相匹配之卡合孔。以下以一個彈性臂為例說明彈性臂40如何卡合到框架10上。 In this embodiment, the second elastic portions 412 of the two first elastic arms 41 are respectively formed with protrusions matching the first slots 1101 and 1201 of the upper frame 11 and the lower frame 12, and respectively corresponding to the upper frame 11 and the lower portion. The first protrusions 1111 and 1112 of the frame 12 are matched with the engaging holes, and the second elastic portions 422 of the two second elastic arms 42 are respectively formed with the second slots 1102 and 1202 of the upper frame 11 and the lower frame 12. The matching protrusions and the engaging holes respectively matching the second protrusions 1112 and 1212 of the upper frame 11 and the lower frame 12 are matched. Hereinafter, an elastic arm is taken as an example to illustrate how the elastic arm 40 is engaged with the frame 10.
第二彈性部412與框架10連接之一端具有卡合部413。卡合部413形成有一與上框11之第一槽口1101相匹配之凸起4131,以及一與上框11之第一凸塊1111相匹配之卡合孔4132。凸起4131與第一槽口1101卡合,卡合孔4132與第一凸塊1111卡合,從而第一彈性臂41之第二端通過卡合部413連接於框架10。 One end of the second elastic portion 412 connected to the frame 10 has an engaging portion 413. The engaging portion 413 is formed with a protrusion 4131 matching the first notch 1101 of the upper frame 11, and an engaging hole 4132 matching the first protrusion 1111 of the upper frame 11. The protrusion 4131 is engaged with the first notch 1101 , and the engaging hole 4132 is engaged with the first protrusion 1111 , so that the second end of the first elastic arm 41 is coupled to the frame 10 through the engaging portion 413 .
此外,第一磁鐵元件21與第一線圈元件23、第二磁鐵元件22與第二線圈元件24之組合方式並不限於上述例舉之方式,電磁驅動單元20可為其他任意熟知之電磁驅動組合結構,其只需使得第一線圈元件23、第二線圈元件24通電後受到之安培力合力之方向一致,並驅動音圈馬達30在垂直於其軸向之平面內移動即可。 In addition, the combination of the first magnet element 21 and the first coil element 23, the second magnet element 22 and the second coil element 24 is not limited to the above-exemplified manner, and the electromagnetic driving unit 20 may be any other well-known electromagnetic driving combination. The structure only needs to make the direction of the ampere force of the first coil element 23 and the second coil element 24 to be the same, and drive the voice coil motor 30 to move in a plane perpendicular to the axial direction thereof.
請參閱圖5,本技術方案第二實施例提供之音圈馬達組合200與第一實施例提供之音圈馬達組合100大致相同,其不同之處在於,音圈馬達組合200之框架210為一體形成之框體,彈性臂包括一個第一彈性臂241與一個第二彈性臂242,第一彈性臂241與第二彈性臂242固定於音圈馬達230之固定組件232上。音圈馬達230包括相對之第一側面401與第二側面402,以及相對之第三側面403與第四側面404。 Referring to FIG. 5, the voice coil motor assembly 200 provided by the second embodiment of the present technical solution is substantially the same as the voice coil motor assembly 100 provided by the first embodiment, except that the frame 210 of the voice coil motor assembly 200 is integrated. In the formed frame, the elastic arm includes a first elastic arm 241 and a second elastic arm 242. The first elastic arm 241 and the second elastic arm 242 are fixed to the fixing component 232 of the voice coil motor 230. The voice coil motor 230 includes a first side 401 and a second side 402 opposite thereto, and a third side 403 and a fourth side 404 opposite thereto.
框架210具有第一固定腳211、第二固定腳212、第三固定腳213與第四固定腳214。第一固定腳211與第四固定腳214相對之一側上形成有第一凸塊201。第三固定腳213與第二固定腳212相對之一側上形成有第二凸塊202。 The frame 210 has a first fixing leg 211, a second fixing leg 212, a third fixing leg 213 and a fourth fixing leg 214. A first bump 201 is formed on a side opposite to the first fixing leg 211 and the fourth fixing leg 214. A second bump 202 is formed on a side opposite to the third fixing leg 213 and the second fixing leg 212.
第一彈性臂241包括第一彈性部2411及自第一彈性部2411一端延伸而出之第二彈性部2412。第一彈性部2411之一端與音圈馬達230之固定元件232相連接。第二彈性部2412上形成有與第一凸塊 201匹配之卡合孔2401。第一彈性部2411於第四側面404上方並與第四側面404成一銳角延伸,第二彈性部2412與第二側面402並與第二側面402成一銳角延伸。 The first elastic arm 241 includes a first elastic portion 2411 and a second elastic portion 2412 extending from one end of the first elastic portion 2411. One end of the first elastic portion 2411 is coupled to the fixing member 232 of the voice coil motor 230. The second elastic portion 2412 is formed with the first bump 201 matching snap hole 2401. The first elastic portion 2411 extends over the fourth side surface 404 and forms an acute angle with the fourth side surface 404. The second elastic portion 2412 and the second side surface 402 extend at an acute angle with the second side surface 402.
第二彈性臂242包括第一彈性部2421及自第一彈性部2421一端延伸而出之第二彈性部2422。第二彈性臂242之第一彈性部2421、第二彈性部2422分別與第一彈性臂241之第一彈性部2411、第二彈性部2412相對。第一彈性部2421與音圈馬達230之固定元件232相連接。第二彈性部2422上形成有與第二凸塊202匹配之卡合孔2402。第一彈性部2421於第三側面403上方並與第三側面403成一銳角延伸,第二彈性部2422與第一側面401相對並與第一側面401成一銳角延伸。 The second elastic arm 242 includes a first elastic portion 2421 and a second elastic portion 2422 extending from one end of the first elastic portion 2421. The first elastic portion 2421 and the second elastic portion 2422 of the second elastic arm 242 are opposed to the first elastic portion 2411 and the second elastic portion 2412 of the first elastic arm 241, respectively. The first elastic portion 2421 is coupled to the fixing member 232 of the voice coil motor 230. The second elastic portion 2422 is formed with an engaging hole 2402 that matches the second bump 202. The first elastic portion 2421 extends above the third side surface 403 and forms an acute angle with the third side surface 403. The second elastic portion 2422 is opposite to the first side surface 401 and extends at an acute angle with the first side surface 401.
因此,第一彈性臂241之卡合孔2401與第一凸塊201卡合,第二彈性臂242之卡合孔2402與第二凸塊202卡合,從而第一彈性臂241與第二彈性臂242可將音圈馬達230彈性支撐在框架210內。 Therefore, the engaging hole 2401 of the first elastic arm 241 is engaged with the first protrusion 201, and the engaging hole 2402 of the second elastic arm 242 is engaged with the second protrusion 202, so that the first elastic arm 241 and the second elastic body The arm 242 can elastically support the voice coil motor 230 within the frame 210.
請參閱圖6,本技術方案第三實施例提供之音圈馬達組合300與第二實施例提供之音圈馬達組合200大致相同,其不同之處在於,該音圈馬達組合300包括一個第一彈性臂311、一個第二彈性臂312、一個第三彈性臂313與一個第四彈性臂314,第一彈性臂311、第二彈性臂312、第三彈性臂313與第四彈性臂314均為一段式。該第一彈性臂311、第二彈性臂312、第三彈性臂313與第四彈性臂314之第一端均與音圈馬達330之固定元件332相連接固定。 Referring to FIG. 6, the voice coil motor assembly 300 provided by the third embodiment of the present technical solution is substantially the same as the voice coil motor assembly 200 provided by the second embodiment, except that the voice coil motor assembly 300 includes a first The elastic arm 311, the second elastic arm 312, the third elastic arm 313 and the fourth elastic arm 314, the first elastic arm 311, the second elastic arm 312, the third elastic arm 313 and the fourth elastic arm 314 are both One paragraph. The first ends of the first elastic arm 311, the second elastic arm 312, the third elastic arm 313 and the fourth elastic arm 314 are connected and fixed to the fixing element 332 of the voice coil motor 330.
音圈馬達330包括相對之第一側面501與第二側面502,以及相對之第三側面503與第四側面504。第一彈性臂311於第一側面501上方並與第一側面501成一銳角延伸,第二彈性臂312於第二側面 502上方並與第二側面502成一銳角延伸,第三彈性臂313於第三側面503上方並與第三側面503成一銳角延伸,第四彈性臂314於第四側面504上方並與第四側面504成一銳角延伸。 The voice coil motor 330 includes a first side 501 and a second side 502 opposite thereto, and a third side 503 and a fourth side 504 opposite thereto. The first elastic arm 311 extends above the first side 501 and forms an acute angle with the first side 501, and the second elastic arm 312 is on the second side. The second elastic arm 313 extends above the third side surface 503 and extends at an acute angle with the third side surface 503. The fourth elastic arm 314 is above the fourth side surface 504 and the fourth side surface 504. An acute angle extends.
第一彈性臂311、第二彈性臂312、第三彈性臂313與第四彈性臂314之第二端均形成有卡合孔305。 The second elastic arm 311, the second elastic arm 312, the third elastic arm 313 and the second end of the fourth elastic arm 314 are each formed with an engaging hole 305.
第一彈性臂311、第二彈性臂312、第三彈性臂313與第四彈性臂314之卡合孔305可分別與框架上相匹配之凸塊(圖未示)卡合,從而第一彈性臂311、第二彈性臂312、第三彈性臂313與第四彈性臂314可將音圈馬達330彈性支撐在框架內。 The engaging holes 305 of the first elastic arm 311, the second elastic arm 312, the third elastic arm 313 and the fourth elastic arm 314 can respectively engage with the matching protrusions (not shown) on the frame, so that the first elasticity The arm 311, the second resilient arm 312, the third resilient arm 313, and the fourth resilient arm 314 can elastically support the voice coil motor 330 within the frame.
此外,該音圈馬達組合之複數彈性臂還可以為其他之形狀與結構,框架亦可以為其他之形狀與結構,只需該複數彈性臂之第一端與該音圈馬達連接,第一端與框架連接,即可將該音圈馬達彈性支撐在該框架上以使該音圈馬達可在該電磁驅動單元驅動下在框架內垂直於音圈馬達軸向之平面內移動。 In addition, the plurality of elastic arms of the voice coil motor combination may have other shapes and structures, and the frame may have other shapes and structures, and only the first end of the plurality of elastic arms is connected to the voice coil motor, and the first end Attached to the frame, the voice coil motor is resiliently supported on the frame such that the voice coil motor can be moved within the frame perpendicular to the axial direction of the voice coil motor driven by the electromagnetic drive unit.
相較於先前技術,本技術方案之音圈馬達組合利用一端連接於該音圈馬達,另一端連接於該框架之複數彈性臂將該音圈馬達彈性支撐在該框架,從而使該音圈馬達可在該電磁驅動單元驅動下在框架內垂直於音圈馬達軸向之平面內移動,並且該音圈馬達自身可驅動其內之鏡片沿光軸方向移動進行對焦,所以該音圈馬達組合既具有自動對焦功能,又可對相機模組之抖動進行修正,且無需設置專門之防抖補償鏡片,其結構簡單且可有效降低相機模組在光軸方向之總高度,有利於相機模組之薄型化,且節省使用防抖補償鏡片之成本。 Compared with the prior art, the voice coil motor combination of the present technical solution utilizes a plurality of elastic arms connected to the voice coil motor at one end and the other end connected to the frame to elastically support the voice coil motor in the frame, thereby making the voice coil motor It can be moved in the plane perpendicular to the axial direction of the voice coil motor under the driving of the electromagnetic driving unit, and the voice coil motor itself can drive the lens therein to move in the optical axis direction to focus, so the voice coil motor combination is With auto-focus function, it can correct the camera module's jitter, and no special anti-shake compensation lens is needed. The structure is simple and can effectively reduce the total height of the camera module in the optical axis direction, which is beneficial to the camera module. It is thinner and saves the cost of using anti-shake compensation lenses.
綜上所述,本發明確已符合發明專利之要件,遂依法提出專利申請。惟,以上所述者僅為本發明之較佳實施方式,自不能以此限制本案之申請專利範圍。舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化,皆應涵蓋於以下申請專利範圍內。 In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.
100‧‧‧音圈馬達組合 100‧‧‧ voice coil motor combination
20‧‧‧電磁驅動單元 20‧‧‧Electromagnetic drive unit
30‧‧‧音圈馬達 30‧‧‧ voice coil motor
40‧‧‧彈性臂 40‧‧‧Flexible arm
31‧‧‧可動元件 31‧‧‧ movable components
32‧‧‧固定元件 32‧‧‧Fixed components
33‧‧‧第一彈片 33‧‧‧First shrapnel
34‧‧‧第二彈片 34‧‧‧Second shrapnel
301‧‧‧第一側面 301‧‧‧ first side
302‧‧‧第二側面 302‧‧‧ second side
303‧‧‧第三側面 303‧‧‧ third side
304‧‧‧第四側面 304‧‧‧ fourth side
321‧‧‧第一置磁部 321‧‧‧First magnetic part
322‧‧‧第二置磁部 322‧‧‧Second magnetic part
11‧‧‧上框 11‧‧‧Top box
12‧‧‧下框 12‧‧‧ Lower frame
110、120‧‧‧框體 110, 120‧‧‧ frame
111、121‧‧‧第一固定腳 111, 121‧‧‧ first fixed foot
112、122‧‧‧第二固定腳 112, 122‧‧‧ second fixed foot
113、123‧‧‧第三固定腳 113, 123‧‧‧ third fixed foot
114、124‧‧‧第四固定腳 114, 124‧‧‧Four fixed feet
1011‧‧‧卡槽 1011‧‧‧ card slot
1021‧‧‧卡合凸起 1021‧‧‧Snap bulge
21‧‧‧第一磁鐵組件 21‧‧‧First magnet assembly
22‧‧‧第二磁鐵組件 22‧‧‧Second magnet assembly
23‧‧‧第一線圈組件 23‧‧‧First coil assembly
24‧‧‧第二線圈組件 24‧‧‧second coil assembly
41‧‧‧第一彈性臂 41‧‧‧First elastic arm
42‧‧‧第二彈性臂 42‧‧‧Second elastic arm
411、421‧‧‧第一彈性部 411, 421‧‧‧ first elastic part
412、422‧‧‧第二彈性部 412, 422‧‧‧Second elastic part
331‧‧‧第一延伸部 331‧‧‧First Extension
341‧‧‧第二延伸部 341‧‧‧Second extension
1101、1201‧‧‧第一槽口 1101, 1201‧‧‧ first notch
1102、1202‧‧‧第二槽口 1102, 1202‧‧‧ second slot
1111、1211‧‧‧第一凸塊 1111, 1211‧‧‧ first bump
1112、1212‧‧‧第二凸塊 1112, 1212‧‧‧ second bump
413‧‧‧卡合部 413‧‧‧Clock Department
4131‧‧‧凸起 4131‧‧‧ bumps
4132‧‧‧卡合孔 4132‧‧‧Snap hole
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW098124017A TWI452805B (en) | 2009-07-16 | 2009-07-16 | Voice coil motor assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW098124017A TWI452805B (en) | 2009-07-16 | 2009-07-16 | Voice coil motor assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201105008A TW201105008A (en) | 2011-02-01 |
TWI452805B true TWI452805B (en) | 2014-09-11 |
Family
ID=44813848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW098124017A TWI452805B (en) | 2009-07-16 | 2009-07-16 | Voice coil motor assembly |
Country Status (1)
Country | Link |
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TW (1) | TWI452805B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI286873B (en) * | 2005-10-12 | 2007-09-11 | Tdk Taiwan Corp | Cylinder-like electromagnetic motor |
CN201018387Y (en) * | 2007-01-22 | 2008-02-06 | 泓记精密股份有限公司 | High-performance speech coil motor |
US20080157609A1 (en) * | 2006-12-28 | 2008-07-03 | Hung-Lin Wang | Plate spring for voice coil motor |
TW200915704A (en) * | 2007-09-27 | 2009-04-01 | Mustek System Inc | Flat spring of voice coil motor |
CN201273953Y (en) * | 2008-10-09 | 2009-07-15 | 华宏新技股份有限公司 | Lens actuating device |
-
2009
- 2009-07-16 TW TW098124017A patent/TWI452805B/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI286873B (en) * | 2005-10-12 | 2007-09-11 | Tdk Taiwan Corp | Cylinder-like electromagnetic motor |
US20080157609A1 (en) * | 2006-12-28 | 2008-07-03 | Hung-Lin Wang | Plate spring for voice coil motor |
CN201018387Y (en) * | 2007-01-22 | 2008-02-06 | 泓记精密股份有限公司 | High-performance speech coil motor |
TW200915704A (en) * | 2007-09-27 | 2009-04-01 | Mustek System Inc | Flat spring of voice coil motor |
CN201273953Y (en) * | 2008-10-09 | 2009-07-15 | 华宏新技股份有限公司 | Lens actuating device |
Also Published As
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TW201105008A (en) | 2011-02-01 |
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MM4A | Annulment or lapse of patent due to non-payment of fees |