WO2022000537A1 - 镜头模组 - Google Patents

镜头模组 Download PDF

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Publication number
WO2022000537A1
WO2022000537A1 PCT/CN2020/101467 CN2020101467W WO2022000537A1 WO 2022000537 A1 WO2022000537 A1 WO 2022000537A1 CN 2020101467 W CN2020101467 W CN 2020101467W WO 2022000537 A1 WO2022000537 A1 WO 2022000537A1
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WO
WIPO (PCT)
Prior art keywords
lens
piezoelectric
piezoelectric sheet
lens module
fixedly connected
Prior art date
Application number
PCT/CN2020/101467
Other languages
English (en)
French (fr)
Inventor
郭顺
史卫领
王洪兴
Original Assignee
诚瑞光学(常州)股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 诚瑞光学(常州)股份有限公司 filed Critical 诚瑞光学(常州)股份有限公司
Publication of WO2022000537A1 publication Critical patent/WO2022000537A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B5/06—Swinging lens about normal to the optical axis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Definitions

  • the utility model relates to the technical field of lens optical imaging, in particular to a lens module.
  • the vibration of the optical path is often caused by external forces or hand-held shaking (that is, the optical axis of the lens module deviates from the optimal optical axis path), resulting in blurred photos taken.
  • the lens In order to ensure the quality of the captured images quality, the lens usually has anti-shake function.
  • a vibration compensation device is usually installed on the optical lens group to make the captured image clear, but at present, most of these devices are equipped with an electromagnetic pushing device on the side of the lens and a fulcrum structure at the bottom.
  • the combined effect of the two realizes the anti-shake function.
  • the response of the electromagnetic driving method is relatively slow, thus affecting the user's operating experience.
  • the purpose of the present invention is to provide a lens module, which responds quickly and can realize the anti-shake function without setting a fulcrum structure.
  • a lens module comprising a casing provided with a receiving cavity, a lens disposed in the receiving cavity and movable relative to the casing, and a lens connecting the lens and the casing
  • a piezoelectric driving device for a body the casing includes a bottom plate and a side plate arranged on the bottom plate and circumferentially arranged around the lens, the bottom plate and the side plate are encircled to form the receiving cavity, the pressure
  • the piezoelectric driving device is controlled by voltages in different directions to generate a driving force for driving the tilting motion.
  • each of the piezoelectric driving devices further includes a support member disposed between the first piezoelectric sheet and the second piezoelectric sheet.
  • the first piezoelectric sheet is fixedly connected to the base plate, and the second piezoelectric sheet is fixedly connected to the lens through the support member.
  • the first piezoelectric sheet is fixedly connected to the base plate through the support member, and the second piezoelectric sheet is fixedly connected to the lens.
  • the orthographic projection of the first piezoelectric sheet in the vertical direction falls within the orthographic projection range of the support member in the vertical direction, and/or the second piezoelectric sheet is in the vertical direction
  • the orthographic projection of is within the vertical projection range of the support.
  • the lens module further includes a connector connecting the first piezoelectric sheet and the bottom plate, and/or connecting the second piezoelectric sheet and the lens.
  • the connecting member is a protrusion extending from the bottom plate or the lens, and the protrusion is fixedly connected to the center position of the first piezoelectric sheet or the second piezoelectric sheet .
  • the connecting member is a pair of protrusions extending from the bottom plate or the lens, and two ends of the supporting member are respectively connected to one of the protrusions.
  • the three piezoelectric driving devices are evenly distributed along the circumferential interval of the lens.
  • the lens module further includes an elastic member sleeved on the lens, and the elastic member is arranged around the lens to fix the lens to the side plate.
  • the piezoelectric driving device When the lens module of the utility model shakes, the piezoelectric driving device is applied with voltage, the piezoelectric driving device is deformed, and two or more piezoelectric driving devices act together on the lens to drive the lens to move around and tilt. Since the purpose of anti-shake can be achieved by being provided with a piezoelectric driving device, the lens module of the present invention does not need to be additionally provided with a fulcrum structure, so that the position of the lens module can be adjusted in all directions, thereby achieving the purpose of anti-shake, and the operation is convenient , strong practicability. Moreover, the piezoelectric driving device responds very quickly, which greatly improves the user's operating experience. At the same time, the piezoelectric driving device can be made very thin, so it takes up less space, which helps to reduce the volume of the lens module and realize the lens module. Miniaturization of groups.
  • FIG. 1 is a schematic structural diagram of a lens module according to Embodiment 1 of the present invention.
  • Fig. 2 is a sectional view along line A-A in Fig. 1;
  • FIG. 3 is an exploded view of the lens module of Embodiment 1 of the present invention.
  • FIG. 4 is an assembly schematic diagram of a lens, an elastic support member and a side plate of the lens module according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic structural diagram of an elastic support member according to Embodiment 1 of the present invention.
  • FIG. 6 is a top view of the lens module according to Embodiment 2 of the present invention.
  • FIG. 7 is a cross-sectional view taken along line B-B in FIG. 6 .
  • Piezoelectric drive device 31/31', first piezoelectric sheet; 32/32', second piezoelectric sheet; 33/33', support member;
  • this embodiment provides an electronic device, the electronic device includes a lens module 1 with an anti-shake function.
  • the lens module 1 includes a housing 10 provided with a housing cavity 11 , a lens 20 disposed in the housing cavity 11 and movable relative to the housing 10 , and a piezoelectric driving device 30 connecting the lens 20 and the housing 10 .
  • the housing 10 It includes a bottom plate 13 and a side plate 15 arranged on the bottom plate 13 and circumferentially arranged around the lens 20. The bottom plate 13 and the side plate 15 enclose a receiving cavity 11, and the piezoelectric driving device 30 is arranged between the lens 20 and the bottom plate 13.
  • the driving device 30 is provided with at least two, two or more piezoelectric driving devices 30 acting together on the lens 20 to drive the lens 20 to move incline, each piezoelectric driving device 30 includes a first piezoelectric sheet 31 and The second piezoelectric sheet 32, the first piezoelectric sheet 31 is fixedly connected to the base plate 13, and the second piezoelectric sheet 32 is fixedly connected to the lens 20.
  • the voltage-controlled piezoelectric driving device 30 generates a driving force for driving the tilting movement of the lens 20 .
  • the piezoelectric driving device 30 has a piezoelectric effect: when an electric field is applied to the piezoelectric driving device 30, the piezoelectric driving device 30 will deform.
  • the deformation of the piezoelectric driving device 30 disappears. Therefore, when the lens 20 shakes, a voltage is applied to the piezoelectric driving device 30, and the piezoelectric driving device 30 is deformed accordingly. One of the two piezoelectric sheets is elongated and the other is contracted, so that the piezoelectric driving device 30 is convex or concave as a whole. Therefore, a single piezoelectric driving device 30 can provide upward or downward driving force, while two or Two or more piezoelectric driving devices 30 act together on the lens 20 to provide a driving force for driving the tilting movement of the lens 20. When the lens module 1 is tilted due to hand shake or other reasons, that is, the optical axis deviates from the original direction.
  • the two piezoelectric driving devices 30 work together to pull the lens 20 back to the original optical axis direction, thereby realizing anti-shake. Since the purpose of anti-shake can be achieved by being provided with the piezoelectric driving device 30 , the lens module 1 of this embodiment does not need to provide an additional fulcrum structure, so that the position of the lens module 1 can be adjusted in all directions, thereby achieving the purpose of anti-shake. , easy to operate and strong practicability. Moreover, the piezoelectric driving device 30 responds very quickly, which greatly improves the user's operating experience. At the same time, the piezoelectric driving device 30 can be made very thin, so it occupies a small space, which helps to reduce the volume of the lens module 1. The miniaturization of the lens module 1 is realized. In addition, the piezoelectric driving device 30 also plays a supporting role, and the supporting lens 20 is suspended in the accommodating cavity 11 .
  • the electronic device may be a smart phone, or a tablet computer, or a camera.
  • the material of the housing 10 is not limited.
  • it can be plastic, and the shape of the housing 10 is adapted to the shape of the lens 20.
  • the shape of the housing 10 is square.
  • the housing 10 is provided with a light-passing hole 12 that communicates with the receiving cavity 11 corresponding to the lens 20 , and the housing 10 further includes a top plate 14 spaced from the bottom plate 13 .
  • the bottom plate 13 , the top plate 14 and the side plate 15 surround A receiving cavity 11 is formed together, and a light-passing hole 12 is formed through the top plate 14 , and the light-passing hole 12 is disposed facing the lens 20 .
  • the top plate 14 is not necessary, and it is also feasible not to provide the top plate 14 .
  • the light-passing holes 12 are not necessary.
  • the top plate 14 is a transparent cover plate, the light-passing holes 12 do not need to be provided.
  • each piezoelectric driving device 30 further includes The support member 33 between the electric sheets 32, and the orthographic projection of the first piezoelectric sheet 31 in the vertical direction falls within the orthographic projection range of the support member 33 in the vertical direction, and at the same time, the second piezoelectric sheet 32 is in the vertical direction.
  • the orthographic projection of the direction falls within the vertical projection range of the support member 33 .
  • the first piezoelectric sheet 31 is fixedly connected to the bottom plate 13
  • the second piezoelectric sheet 32 is fixedly connected to the base plate 13 through the support member 33 .
  • Lens 20 The dimension of the lens module 1 in this connection manner in the width direction does not need to be changed.
  • the contact point between the first piezoelectric sheet 31 and the bottom plate 13 may be in the middle of the first piezoelectric sheet 31, or at any position of the first piezoelectric sheet 31.
  • the contact point between the first piezoelectric sheet 31 and the bottom plate 13 The contact point is preferably in the middle, so that the force generated by the deformation of the piezoelectric driving device 30 can better act on the lens 20 .
  • the contact points between the support 33 and the lens 20 can be at both ends of the support 33, or at any position of the support 33.
  • the contact points between the support 33 and the lens 20 are preferably at both ends of the support 33.
  • the support The member 33 can not only play a supporting role for the first piezoelectric sheet 31 and the second piezoelectric sheet 32, but also influence the deformation of the first piezoelectric sheet 31 and the second piezoelectric sheet 32 as little as possible.
  • the lens module 1 further includes a connector 40 .
  • the connector 40 has two forms.
  • the connector 40 in the first form is a protrusion extending from the bottom plate 13
  • the connector 40 in the second form extends from the lens 20 .
  • a pair of protrusions The first piezoelectric sheet 31 is fixedly connected to the base plate 13 through the connecting member 40 of the first form, and the protrusion is fixedly connected to the center position of the first piezoelectric sheet 31 .
  • the supporting member 33 is fixedly connected to the lens 20 through the connecting member 40 of the second form, and two ends of the supporting member 33 are respectively connected with a protrusion.
  • the number of piezoelectric driving devices 30 is not fixed, and can be set according to actual optical requirements, and two or more can be provided.
  • three piezoelectric driving devices 30 are provided, and three piezoelectric driving devices The driving devices 30 are evenly distributed along the circumferential interval of the lens 20 .
  • Three piezoelectric driving devices 30 can basically satisfy the shake compensation of the lens 20 in all directions. In this way, the number of piezoelectric driving devices 30 will not be too large.
  • the weight of the lens module 1 is relatively light, so the overall structure of the lens module 1 will not become very heavy due to the piezoelectric driving device 30 being provided.
  • the installation point of the piezoelectric driving device 30 is determined by the optical requirements.
  • the lens 20 By controlling the position of each piezoelectric driving device 30, under the joint force of each piezoelectric driving device 30, the lens 20 reaches the specified orientation, That is to say, the lens 20 can tilt and move under the driving force of the piezoelectric driving device 30, so as to achieve the purpose of anti-shake.
  • the lens module 1 further includes an elastic member 60 disposed in the receiving cavity 11 to support the lens 20 to be suspended in the receiving cavity 11, and the elastic member 60 is sleeved on the lens 20 , and is arranged around the lens 20 , and the elastic member 60 fixes the lens 20 on the side plate 15 .
  • the elastic member 60 of this embodiment includes an inner frame 61 sleeved on the lens 20 , an outer frame 62 disposed around the inner frame 61 and connected to the side plate 15 , and an elastic connecting beam 63 connecting the inner frame 61 and the outer frame 62 .
  • the inner frame 61, the outer frame 62 and the elastic connecting beam 63 are integrally formed, the shape of the inner frame 61 is set to be circular, the shape of the outer frame 62 is set to be square, the elastic connecting beam 63 is set to an arc shape, and the elastic connecting beam 63 is set to four
  • the inner frame 61 is evenly distributed with four connection points in the circumferential direction.
  • the outer frame 62 is evenly distributed with four connection points in the circumferential direction. These four connection points correspond to the four connection points of the inner frame 61 one by one.
  • Both ends of the elastic connecting beams 63 are respectively connected to a connecting point of the inner frame 61 and a connecting point of the outer frame 62, but each elastic connecting beam 63 is not connected to the corresponding connection point of the inner and outer frames 62, but is connected to a staggered position.
  • connection points for example, the connection points of the inner frame 61 are the first connection point, the second connection point, the third connection point, the fourth connection point, and the one-to-one connection points of the outer frame 62 are the fifth connection point, the sixth connection point
  • the connection point, the seventh connection point, and the eighth connection point, one of the elastic connection beams 63 is connected to the first connection point and the sixth connection point, and the other elastic connection beams 63 are connected by dislocation in sequence, so that the elastic connection beams 63 do not affect each other
  • the length of the elastic connecting beam 63 is extended as much as possible, which further reduces the rigidity of the elastic connecting beam 63 and facilitates the movement of the lens 20.
  • each elastic connecting beam 63 can also be connected to the corresponding connection point of the inner and outer frames 62, for example, an elastic connecting beam 63 is connected to the first connection point and the fifth connection point, and the connection point of the inner frame 61 and the outer frame 62.
  • the positions of the connection points of the frame 62 do not necessarily have to be directly aligned, and may be staggered.
  • the lens module 1 further includes a flexible circuit board 70 electrically connected to the lens 20 , and the flexible circuit board 70 is connected to the lens 20 through the housing 10 .
  • the flexible circuit board 70 is used to provide power to the lens 20 and the piezoelectric driving device 30 and other devices.
  • the difference between this embodiment and Embodiment 1 is the connection method between the piezoelectric driving device 30 , the base plate 13 and the lens 20 .
  • the piezoelectric driving device 30 includes a first piezoelectric sheet 31 ′, a second piezoelectric sheet 32 ′ and a support member 33 ′, and the first piezoelectric sheet 31 ′ is fixedly connected to the base plate 13 through the support member 33 ′ , the second piezoelectric sheet 32 ′ is fixedly connected to the lens 20 .
  • the lens module 1 further includes a connecting piece 40 ′.
  • the connecting piece 40 ′ has two forms.
  • the connecting piece 40 ′ of the first form is a protrusion extending from the lens 20
  • the connecting piece 40 ′ of the second form is a protrusion extending from the lens 20
  • 40 ′ is a pair of protrusions extending from the bottom plate 13 .
  • the second piezoelectric sheet 32' is fixedly connected to the lens 20 through the connecting member 40' of the first form, and the protrusion is fixedly connected to the center position of the second piezoelectric sheet 32'.
  • the supporting member 33' is fixedly connected to the bottom plate 13 through the connecting member 40' of the second form, and two ends of the supporting member 33' are respectively connected with a protrusion.
  • the contact point between the second piezoelectric sheet 32' and the lens 20 may be in the middle of the second piezoelectric sheet 32', or at any position of the second piezoelectric sheet 32'.
  • the contact point with the lens 20 is preferably in the middle, so that the force generated by the deformation of the piezoelectric driving device 30 can better act on the lens 20 .
  • the contact points of the support member 33' and the bottom plate 13 may be at both ends of the support member 33', or at any position of the support member 33'.
  • the contact points between the support member 33' and the bottom plate 13 are preferably at both ends of the support member 33'.
  • the support member 33' can not only support the first piezoelectric sheet 31' and the second piezoelectric sheet 32', but also can affect the first piezoelectric sheet 31' and the second piezoelectric sheet as little as possible. 32' deformation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Lens Barrels (AREA)

Abstract

本实用新型提供了一种镜头模组，镜头模组包括设有收容腔的壳体、设于收容腔内并可相对壳体移动或运动的镜头、以及连接镜头与壳体的压电驱动装置，壳体包括底板以及设于底板并围绕镜头周向设置的侧板，底板和侧板围合形成收容腔，压电驱动装置至少设置有两个，在镜头发生抖动时，两个或两个以上压电驱动装置共同作用于镜头以驱动镜头倾斜运动从而达到防抖目的，每个压电驱动装置包括层叠设置的第一压电片和第二压电片，第一压电片固定连接于底板，第二压电片固定连接于镜头，通过对第一压电片、第二压电片通不同方向的电压控制压电驱动装置产生驱动镜头倾斜运动的驱动力。

Description

镜头模组
【技术领域】
本实用新型涉及镜头光学成像技术领域，尤其涉及一种镜头模组。
【背景技术】
近年来，智能手机、平板电脑以及相机等电子产品上都安装有高性能镜头。在使用的过程中，常会因为外力因素或是手持抖动，造成光路径的震动偏移（即镜头模组的光轴偏离最佳光轴路径）进而导致拍摄出来的照片模糊，为了保证拍摄图像的质量，镜头通常都会具有防抖功能。
现有的防抖方案，通常在光学透镜组上设置震动补偿装置，使所撷取到的影像清晰化，但目前此类装置大多在镜头侧面安装电磁推动装置，并在底部设置支点结构，通过两者的共同作用来实现防抖功能。但电磁驱动的方式响应相对较慢，从而影响用户的操作体验。
【实用新型内容】
本实用新型的目的在于提供一种镜头模组，其响应迅速，且不需要设置支点结构就能实现防抖功能。
本实用新型的技术方案如下：一种镜头模组，包括设有收容腔的壳体、设于所述收容腔内并可相对所述壳体运动的镜头、以及连接所述镜头与所述壳体的压电驱动装置，所述壳体包括底板以及设于所述底板并围绕所述镜头周向设置的侧板，所述底板和所述侧板围合形成所述收容腔，所述压电驱动装置至少设置有两个，两个或两个以上所述压电驱动装置共同作用于镜头以驱动镜头倾斜运动，每个所述压电驱动装置包括层叠设置的第一压电片和第二压电片，所述第一压电片固定连接于所述底板，所述第二压电片固定连接于所述镜头，通过对所述第一压电片、所述第二压电片通不同方向的电压控制所述压电驱动装置产生驱动所述倾斜运动的驱动力。
作为一种改进方式，每个所述压电驱动装置还包括设于所述第一压电片和所述第二压电片之间的支撑件。
作为一种改进方式，所述第一压电片固定连接于所述底板，所述第二压电片通过所述支撑件固定连接于所述镜头。
作为一种改进方式，所述第一压电片通过所述支撑件固定连接于所述底板，所述第二压电片固定连接于所述镜头。
作为一种改进方式，所述第一压电片在竖直方向的正投影落在所述支撑件在竖直方向的正投影范围内，和/或所述第二压电片在竖直方向的正投影落在所述支撑件在竖直方向的正投影范围内。
作为一种改进方式，所述镜头模组还包括连接所述第一压电片与所述底板、和/或连接所述第二压电片与所述镜头的连接件。
作为一种改进方式，所述连接件为自所述底板或所述镜头延伸出的凸起，所述凸起固定连接于所述第一压电片或所述第二压电片的中心位置。
作为一种改进方式，所述连接件为自所述底板或所述镜头延伸出的一对凸起，所述支撑件的两端分别连接一个所述凸起。
作为一种改进方式，所述压电驱动装置设置有三个，三个所述压电驱动装置沿所述镜头的周向间隔均匀分布。
作为一种改进方式，所述镜头模组还包括套设在所述镜头上的弹性件，所述弹性件环绕所述镜头设置将所述镜头固定于所述侧板。
本实用新型的有益效果在于：
本实用新型的镜头模组在镜头发生抖动时，压电驱动装置被施加电压，压电驱动装置从而发生形变，两个或两个以上压电驱动装置共同作用于镜头，驱动镜头绕倾斜运动。由于设置有压电驱动装置就能够实现防抖的目的，因此，本实用新型的镜头模组不需要额外设置支点结构，便能够全方位调整镜头模组的位置，从而达到防抖目的，操作方便，实用性强。而且压电驱动装置响应非常迅速，大大提升了用户的操作体验，同时压电驱动装置可以做的很薄，因此其占用的空间较小，有助于减小镜头模组的体积，实现镜头模组的小型化。
【附图说明】   
图1为本实用新型实施例1的镜头模组的结构示意图；
图2为图1中沿A-A线的剖视图；
图3为本实用新型实施例1的镜头模组的分解图；
图4为本实用新型实施例1的镜头模组的镜头、弹性支撑件与侧板的装配示意图；
图5为本实用新型实施例1的弹性支撑件的结构示意图；
图6为本实用新型的实施例2的镜头模组的俯视图；
图7为图6中沿B-B线的剖视图。
附图说明：
1、镜头模组；
10、壳体；11、收容腔；12、通光孔；13、底板；14、顶板；15、侧板；
20、镜头；
30、压电驱动装置； 31/31'、第一压电片； 32/32'、第二压电片；33/33'、支撑件；
40/40'、连接件；
60、弹性件；61、内框；62、外框；63、弹性连接梁；
70、柔性电路板。
【具体实施方式】 
下面结合附图和实施方式对本实用新型作进一步说明。
需要说明的是，本实用新型实施例中所有方向性指示（诸如上、下、左、右、前、后、内、外、顶部、底部……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
实施例1
请参阅图1-图5，本实施例提供了一种电子设备，该电子设备包括具有防抖功能的镜头模组1。镜头模组1包括设有收容腔11的壳体10、设于收容腔11内并可相对壳体10运动的镜头20、以及连接镜头20与壳体10的压电驱动装置30，壳体10包括底板13以及设于底板13并围绕镜头20周向设置的侧板15，底板13和侧板15围合形成收容腔11，压电驱动装置30设于镜头20与底板13之间，压电驱动装置30至少设置有两个，两个或两个以上压电驱动装置30共同作用于镜头20以驱动镜头20倾斜运动，每个压电驱动装置30包括层叠设置的第一压电片31和第二压电片32，第一压电片31固定连接于底板13，第二压电片32固定连接于镜头20，通过对第一压电片31、第二压电片32通不同方向的电压控制压电驱动装置30产生驱动镜头20倾斜运动的驱动力。压电驱动装置30具有压电效应：给压电驱动装置30施加电场，压电驱动装置30会发生变形，电场去掉后，压电驱动装置30的变形随之消失。因此，在镜头20发生抖动时，压电驱动装置30被施加电压，压电驱动装置30从而发生形变，例如当第一压电片31和第二压电片32通不同极性的电，会使得两个压电片一个拉长，另一个收缩，从而使得压电驱动装置30整体上凸或下凹，因此，单个压电驱动装置30会提供向上或向下的驱动力，而两个或两个以上压电驱动装置30共同作用于镜头20，则会提供驱动镜头20倾斜运动的驱动力，当镜头模组1由于手抖或其他原因发生倾斜时，即光轴偏离了原方向，多个压电驱动装置30共同作用将镜头20拉回至原光轴方向，从而实现防抖。由于设置有压电驱动装置30就能够实现防抖的目的，因此，本实施例的镜头模组1不需要额外设置支点结构，便能够全方位调整镜头模组1的位置，从而达到防抖目的，操作方便，实用性强。而且压电驱动装置30响应非常迅速，大大提升了用户的操作体验，同时压电驱动装置30可以做的很薄，因此其占用的空间较小，有助于减小镜头模组1的体积，实现镜头模组1的小型化。此外，压电驱动装置30还起到了支撑作用，支撑镜头20悬置在收容腔11内。
可以理解地，该电子设备可以是智能手机、或者平板电脑、或者相机。
壳体10的材质不做限定，如可以为塑料，壳体10的形状与镜头20的形状相适配，在本实施例中，壳体10的形状为方形。
参阅图1-图3，壳体10对应镜头20设有与收容腔11连通的通光孔12，壳体10还包括与底板13间隔设置的顶板14，底板13、顶板14和侧板15围合形成收容腔11，顶板14贯穿设有通光孔12，通光孔12正对镜头20设置。
可以理解地，顶板14不是必要的，不设置顶板14也是可行的。同样地，通光孔12也不是必要的，例如，当顶板14为透明盖板时，就不需要设置通光孔12。
参阅图1-图3，为了更好地发挥第一压电片31和第二压电片32的形变能力，每个压电驱动装置30还包括设于第一压电片31和第二压电片32之间的支撑件33，且第一压电片31在竖直方向的正投影落在支撑件33在竖直方向的正投影范围内，同时，第二压电片32在竖直方向的正投影落在支撑件33在竖直方向的正投影范围内，在本实施例中，第一压电片31固定连接于底板13，第二压电片32通过支撑件33固定连接于镜头20。这种连接方式的镜头模组1在宽度方向上的尺寸不需要发生改变。
可以理解地，第一压电片31与底板13的接触点可以在第一压电片31的中部，也可以在第一压电片31的任意位置，第一压电片31与底板13的接触点优选为中部，这样，压电驱动装置30的发生形变产生的力能够更好地作用在镜头20上。同理，支撑件33与镜头20的接触点可以在支撑件33两端，也可以在支撑件33的任意位置，支撑件33与镜头20的接触点优选为支撑件33两端，这样，支撑件33既能够对第一压电片31和第二压电片32起到支撑作用，又能够尽可能少地影响第一压电片31和第二压电片32的形变。
镜头模组1还包括连接件40，连接件40具有两种形态，第一种形态的连接件40为自底板13延伸出的凸起，第二种形态的连接件40为自镜头20延伸出的一对凸起。第一压电片31通过第一种形态的连接件40固定连接于底板13，凸起固定连接于第一压电片31的中心位置。支撑件33通过第二种形态的连接件40固定连接于镜头20，支撑件33的两端分别连接一个凸起。
可以理解地，压电驱动装置30的数量不定，具体可根据实际光学上的需求设置，可以设置两个或者更多，在本实施例中，压电驱动装置30设置有三个，三个压电驱动装置30沿所述镜头20的周向间隔均匀分布。设置三个压电驱动装置30基本能够满足镜头20在各个方向上的抖动补偿，这样，设置的压电驱动装置30数量也不会过多，再加上压电驱动装置30的体积不大，重量较轻，因此，镜头模组1整体不会由于设置了压电驱动装置30而使得整体结构变得很笨重。
需要说明的是，压电驱动装置30的安装点由光学上的需求决定，通过控制各个压电驱动装置30的位置，在各个压电驱动装置30的共同作用力下，镜头20到达指定方位，也就是说镜头20能够在压电驱动装置30的驱动力下倾斜运动，从而达到防抖目的。
参阅图3-图5，为了更好地支撑镜头20，镜头模组1还包括设于收容腔11内以支撑镜头20悬置在收容腔11内的弹性件60，弹性件60套设在镜头20上，并环绕镜头20设置，弹性件60将镜头20固定于侧板15。本实施例的弹性件60包括套设在镜头20上的内框61、设于内框61外围并与侧板15连接的外框62以及连接内框61与外框62的弹性连接梁63。内框61、外框62以及弹性连接梁63一体成型，内框61的形状设置成圆形，外框62的形状设置成方形，弹性连接梁63设置成弧形状，弹性连接梁63设置有四个，内框61在周向上均布四个连接点，同理，外框62在周向上均布四个连接点，这四个连接点与内框61的四个连接点一一对应，每个弹性连接梁63两端分别与内框61的一个连接点和外框62的一个连接点连接，但是每个弹性连接梁63不连接内外框62对应的连接点，而是连接错开一个位置的连接点，例如，内框61的连接点为第一连接点、第二连接点、第三连接点、第四连接点，外框62的一一对应的连接点为第五连接点、第六连接点、第七连接点、第八连接点，其中一个弹性连接梁63连接第一连接点和第六连接点，其他弹性连接梁63依次错位连接，使得各个弹性连接梁63之间互不影响，同时又尽可能的延长了弹性连接梁63的长度，进一步降低了弹性连接梁63的刚度，便于镜头20运动，镜头20在移动时，部分弹性连接梁63被压缩，部分弹性连接梁63被拉长，当然了，每个弹性连接梁63也可以连接内外框62对应的连接点，例如一个弹性连接梁63连接第一连接点和第五连接点，而且，内框61的连接点和外框62的连接点的位置也不一定要正对，可以错开设置。
参阅图1-图3，镜头模组1还包括与镜头20电连接的柔性电路板70，柔性电路板70穿过壳体10与镜头20连接。柔性电路板70用于给镜头20和压电驱动装置30等装置提供电源。
实施例2
参阅4-图7，本实施例与实施例1的不同之处在压电驱动装置30与底板13和镜头20之间连接方式，其他地方与实施例相同，在此不赘述。
在本实施例中，压电驱动装置30包括第一压电片31'、第二压电片32'和支撑件33'，第一压电片31'通过支撑件33'固定连接于底板13，第二压电片32'固定连接于镜头20。
更进一步地，镜头模组1还包括连接件40'，连接件40'具有两种形态，第一种形态的连接件40'为自镜头20延伸出的凸起，第二种形态的连接件40'为自底板13延伸出的一对凸起。第二压电片32'通过第一种形态的连接件40'固定连接于镜头20，凸起固定连接于第二压电片32'的中心位置。支撑件33'通过第二种形态的连接件40'固定连接于底板13，支撑件33'的两端分别连接一个凸起。
可以理解地，第二压电片32'与镜头20的接触点可以在第二压电片32'的中部，也可以在第二压电片32'的任意位置，第二压电片32'与镜头20的接触点优选为中部，这样，压电驱动装置30的发生形变产生的力能够更好地作用在镜头20上。同理，支撑件33'底板13的接触点可以在支撑件33'两端，也可以在支撑件33'的任意位置，支撑件33'与底板13的接触点优选为支撑件33'两端，这样，支撑件33'既能够对第一压电片31'和第二压电片32'起到支撑作用，又能够尽可能少地影响第一压电片31'和第二压电片32'的形变。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (10)

  1. 一种镜头模组，其特征在于，包括设有收容腔的壳体、设于所述收容腔内并可相对所述壳体运动的镜头、以及连接所述镜头与所述壳体的压电驱动装置，所述壳体包括底板以及设于所述底板并围绕所述镜头周向设置的侧板，所述底板和所述侧板围合形成所述收容腔，所述压电驱动装置至少设置有两个，两个或两个以上所述压电驱动装置共同作用于镜头以驱动镜头倾斜运动，每个所述压电驱动装置包括层叠设置的第一压电片和第二压电片，所述第一压电片固定连接于所述底板，所述第二压电片固定连接于所述镜头，通过对所述第一压电片、所述第二压电片通不同方向的电压控制所述压电驱动装置产生驱动所述镜头倾斜运动的驱动力。
  2. 根据权利要求1所述的镜头模组，其特征在于，每个所述压电驱动装置还包括设于所述第一压电片和所述第二压电片之间的支撑件。
  3. 根据权利要求2所述的镜头模组，其特征在于，所述第一压电片固定连接于所述底板，所述第二压电片通过所述支撑件固定连接于所述镜头。
  4. 根据权利要求2所述的镜头模组，其特征在于，所述第一压电片通过所述支撑件固定连接于所述底板，所述第二压电片固定连接于所述镜头。
  5. 根据权利要求2所述的镜头模组，其特征在于，所述第一压电片在竖直方向的正投影落在所述支撑件在竖直方向的正投影范围内，和/或所述第二压电片在竖直方向的正投影落在所述支撑件在竖直方向的正投影范围内。
  6. 根据权利要求2所述的镜头模组，其特征在于，所述镜头模组还包括连接所述第一压电片与所述底板、和/或连接所述第二压电片与所述镜头的连接件。
  7. 根据权利要求6所述的镜头模组，其特征在于，所述连接件为自所述底板或所述镜头延伸出的凸起，所述凸起固定连接于所述第一压电片或所述第二压电片的中心位置。
  8. 根据权利要求6所述的镜头模组，其特征在于，所述连接件为自所述底板或所述镜头延伸出的一对凸起，所述支撑件的两端分别连接一个所述凸起。
  9. 根据权利要求1所述的镜头模组，其特征在于，所述压电驱动装置设置有三个，三个所述压电驱动装置沿所述镜头的周向间隔均匀分布。
  10. 根据权利要求1所述的镜头模组，其特征在于，所述镜头模组还包括套设在所述镜头上的弹性件，所述弹性件环绕所述镜头设置将所述镜头固定于所述侧板。
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CN202837765U (zh) * 2012-09-17 2013-03-27 硕颖数码科技（中国）有限公司 相机镜头模组
CN110554474A (zh) * 2018-06-01 2019-12-10 费斯·巴-提斯 自动聚焦和光学图像稳定化系统
CN110708452A (zh) * 2019-11-12 2020-01-17 东莞市亚登电子有限公司 一种实现摄像头自动对焦及防抖的驱动装置
CN111077628A (zh) * 2020-01-03 2020-04-28 睿恩光电有限责任公司 压电式透镜驱动装置、相机装置及电子设备

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CN202837765U (zh) * 2012-09-17 2013-03-27 硕颖数码科技（中国）有限公司 相机镜头模组
CN110554474A (zh) * 2018-06-01 2019-12-10 费斯·巴-提斯 自动聚焦和光学图像稳定化系统
CN110708452A (zh) * 2019-11-12 2020-01-17 东莞市亚登电子有限公司 一种实现摄像头自动对焦及防抖的驱动装置
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