WO2023005040A1 - Anti-shake motor - Google Patents
Anti-shake motor Download PDFInfo
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- WO2023005040A1 WO2023005040A1 PCT/CN2021/127713 CN2021127713W WO2023005040A1 WO 2023005040 A1 WO2023005040 A1 WO 2023005040A1 CN 2021127713 W CN2021127713 W CN 2021127713W WO 2023005040 A1 WO2023005040 A1 WO 2023005040A1
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- axis
- frame
- base
- sliding
- magnet
- Prior art date
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000000725 suspension Substances 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Classifications
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- 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
- G03B5/02—Lateral adjustment of lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
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- 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
- G03B5/04—Vertical adjustment of lens; Rising fronts
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- 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
Definitions
- the invention relates to an anti-shake motor, which is used for anti-shake of cameras of portable devices such as mobile phones and notebook computers.
- lens drive devices have been installed in portable terminal devices such as portable cameras, smartphones, and tablet PCs. These lens driving devices generally have autofocus and anti-shake functions.
- the anti-shake feature reduces blur caused by external vibrations or the shaking of the user's hand.
- the focusing coil is energized to drive the lens up and down along its optical axis.
- suspension wires are generally required.
- the suspension wires rely on elastic restoring force to prevent shaking, thereby prompting the lens driving device to quickly return to the original position. Therefore, the suspension wires
- the role in the lens drive device includes: circuit connection, carrying the lens and AF motor, and elastic shaking for anti-shake correction.
- the problems with the suspension wire are: when the heavy lens is loaded, the anti-shake correction range of the suspension wire is small, At the same time, the suspension wire is also easy to bend and deform, and the solder joints at both ends of the suspension wire are easy to loosen, which in turn affects the stability of the motor circuit connection and the accuracy of the anti-shake correction.
- the purpose of the present invention is to provide an anti-shake motor with a novel and unique structure, easy to use, and can effectively improve the anti-shake performance; the specific technical solution is:
- An anti-shake motor comprising a housing, a base, a frame and a carrier for fixing lenses; the frame is slidably connected to the base, and the housing is fixedly connected to the base to limit the range of movement of the frame; There is a return spring to guide the frame back to its original position.
- an X-axis drive coil and a Y-axis drive coil are provided on the top surface of the base; X-axis magnets and Y-axis magnets and Y-axis magnets are respectively provided on the bottom surface of the frame corresponding to the X-axis drive coil and the Y-axis drive coil. shaft magnet.
- the inside of the frame is provided with a sliding support surface that supports the sliding of the carrier along the Z axis; and an abutting mechanism that makes the carrier lean against the sliding support surface.
- the sliding support surface is composed of two sliding mechanisms in the Z-axis direction.
- the sliding mechanism is composed of a guide column and two groups of balls arranged along the Z-axis direction.
- the abutting mechanism is composed of a Z-axis magnet on the carrier and a magnetic attraction piece fixed on the frame corresponding to the position of the Z-axis magnet.
- the anti-shake motor of the present invention provides a sliding mechanism between the frame and the base, so that the frame and the base are slidably connected; avoiding the restriction of the suspension wire scheme, the XY axis plane can achieve a correction range of 3 degrees; At the same time, the movement of the Z-axis does not need to overcome the elastic force of the upper and lower springs of the conventional AF motor.
- the drive coil has a short power circuit, fewer solder joints, and a more stable structure. It can achieve high-thrust drive while improving the performance of the motor.
- Fig. 1 is a schematic diagram of the appearance and structure of the anti-shake motor of the present invention
- Figure 2 is a schematic diagram of the structure of the base unit
- Fig. 3 is an exploded view of the structural schematic diagram of the anti-shake motor of the present invention.
- Fig. 4 is a structural schematic diagram of a frame unit
- Fig. 5 is a schematic diagram of the structure of the carrier unit.
- spatially relative terms such as “upper,” “lower,” “left,” and “right” may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” other elements or features would then be oriented “above” the other elements or features. Thus, the exemplary term “lower” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative specifications used herein interpreted accordingly.
- the anti-shake motor in this embodiment includes a housing 1 , a base 47 , a frame 36 and a carrier 21 for fixing lenses; wherein, the frame 36 is slidably connected to the base 47 . Since the suspension wire is no longer used to connect the frame 36 and the base 47, when the X-axis drive coil 42 drives the X-axis magnet 31 or the Y-axis drive coil 43 drives the Y-axis magnet 32, the frame 36 can slide freely relative to the base 47, The resistance is small; it is no longer hindered by the suspension wire; the correction range is increased from 1 to 2 degrees of the general OIS motor to 3 degrees. Naturally, it also solves the problems of easy bending and deformation caused by hanging wires, and easy loosening of solder joints at both ends.
- shell 1 is fixedly connected with base 47, can limit the range of movement of frame, avoids frame beyond the controllable range of coil; Be provided with the back-moving spring 5 that is used to guide frame 36 to return to original position between frame 36 and base 47; Make not need During the anti-shake operation, the frame 36 is at the initial position at the center of the base 47, and the anti-shake range can be balanced in all directions.
- the shape of the housing is set as a rectangle, which is beneficial to the miniaturization of the product, and is also convenient for processing and use; at this time, the return spring 5 can be arranged at the four corners of the rectangle.
- the return spring 5 can be set to extend along the Z-axis direction, which is beneficial to product miniaturization.
- the return spring 5 can also be inclined inwardly or outwardly; it only needs to pull the frame 36 back to the initial position at the center of the base 47 when the X-axis driving coil 42 and the Y-axis driving coil 43 are not powered. The location will do.
- the outer shape of the outer shell can be cylindrical or hexagonal; when the outer shell is in other shapes, the return springs 5 are evenly distributed along the outer edge of the outer shell.
- At least 3 ball grooves are arranged on the top surface of the base, and sliding plane balls 41 are arranged in the ball grooves, and the fixed points of all the sliding plane balls 41 form a sliding support plane; Friction when the frames slide relative to each other.
- the bottom end surface of the frame is provided with a sliding plane that cooperates with the balls, and the sliding plane cooperates with the sliding plane balls 41 to realize the sliding connection between the frame and the base.
- This sliding connection mechanism has a simple structure, can realize a large compensation angle, and at the same time has more precise displacement control, higher sensitivity, and stronger reliability.
- the installation groove space of the sliding plane ball 41 is larger than the diameter of the sliding plane ball 41; the sliding plane ball 41 is rolled as much as possible in the installation groove, and the sliding movement of the sliding plane ball 41 in the installation groove is reduced.
- An existing sliding mechanism can also be used to realize the sliding connection between the frame 36 and the base 47 .
- two sets of slide rails and sliders constitute a sliding platform in the X-axis direction; a combination of two sets of slide rails and sliders constitutes a sliding platform in the Y-axis direction to form a free sliding in the XY direction; or the frame 36 is suspended on the base by the repulsive force of the permanent magnet 47 above.
- An X-axis driving coil and a Y-axis driving coil can be arranged on the top surface of the base; X-axis magnets and Y-axis magnets and Y-axis magnets can be respectively arranged on the bottom surface of the frame corresponding to the X-axis driving coil and the Y-axis driving coil. magnet.
- the X-axis driving coil and Y-axis driving coil that need to be powered are installed on a fixed base; the X-axis magnets and Y-axis magnets that do not need to be powered are installed on a movable frame, which is beneficial to reduce the failure rate of the product.
- the carrier 21 sleeved in the frame 36 and the frame 36 must be clearance fit.
- a sliding support surface for supporting the sliding of the carrier 21 along the Z-axis is provided on the inside of the frame 36 ; at the same time, an abutting mechanism for making the carrier lean against the sliding support surface is also provided. The abutment mechanism ensures that when the carrier 21 slides along the Z axis, it is always in contact with the sliding support surface, and the sliding support surface is used to the greatest extent to reduce resistance.
- the sliding mechanism can also be made up of guide columns 23 and two groups of guide balls 24 arranged along the Z axis direction; It is beneficial to reduce the friction force of the sliding mechanism.
- Two adjacent corners of the frame 36 are provided with ball receiving grooves 37 , and each set of guide balls 24 has at least two balls. Direct contact with adjacent balls in the Z-axis direction should be avoided, resulting in increased resistance.
- the abutment mechanism is composed of the Z-axis magnet 22 on the carrier and the magnetic attraction piece 35 fixed on the frame 36 corresponding to the position of the Z-axis magnet 22 .
- the magnetic attraction piece 35 is attracted to the Z-axis magnet 22, so that when the carrier 21 slides along the Z-axis, it is always in contact with the sliding support surface.
- magnets with opposite magnetic properties can also be used to push the far Z-axis magnet 22 .
- the frame unit 3 is composed of the frame 36 , the X-axis magnet 31 , the Y-axis magnet 32 , the FPC 33 , the Z-axis drive coil 331 , the Z-axis Hall chip 332 and the magnetic sheet 35 .
- the lower end of the return spring 5 is connected with the connector embedded in the base; the upper end is connected with the connector embedded in the frame 36; the control current is led to the connector of the frame 36;
- the FPC33 input interface is welded and connected; the Z-axis driving coil 331 obtains the driving current from the FPC33.
- the Z-axis Hall chip 332 obtains power from the FPC33, and transmits a feedback signal through the FPC33.
- the Z-axis Hall chip 332 and the Z-axis Hall magnet 25 should be as far away from the Z-axis magnet 22 as possible.
- a magnetic blocking sheet 34 is installed at the bottom of the frame 36 .
- the Z-axis magnet 22 is set in a trapezoid whose upper and lower ends are inclined outward; the magnetic field is biased to the outside, away from the X-axis magnet 31 and the Y-axis magnet 32, which also helps to reduce the distance between the Z-axis magnet 22 and the X-axis magnet 31 and Y-axis magnet 32. Interference between.
- the carrier 21 , the Z-axis magnet 22 and the Z-axis Hall magnet 25 constitute the carrier unit 2 .
- the Z-axis driving coil 331 drives the Z-axis magnet 22 to move along the Z-axis.
- the Z-axis Hall magnet 25 feeds back the Z-axis displacement through the Z-axis Hall chip 332 .
- the magnetic attraction piece 35 fixed on the side wall of the frame 36 is attracted to the Z-axis Hall magnet 25 , so that the carrier 21 is close to the side of the magnetic attraction piece 35 .
- two groups of guide balls 24 are installed in the ball receiving groove that frame 36 is provided with, and carrier 21 is provided with guide column 23; Close contact.
- the carrier 21 moves along the Z-axis relative to the frame 36, the guide ball 24 and the guide post 23 have rolling friction, and the friction force is very small.
- the anti-shake motor of the present invention provides a sliding mechanism between the frame and the base, so that the frame and the base are slidably connected; avoiding the restriction of the suspension wire scheme, the XY axis plane can achieve a correction range of 3 degrees; At the same time, the Z-axis movement does not need to overcome the elastic force of the upper and lower springs of the conventional AF motor, the drive coil has a short power circuit, fewer solder joints, and a more stable structure.
- the Z-axis rolling drive only needs to overcome a small driving resistance, so the power consumption is low. , while improving the performance of the motor, it can realize high-thrust drive.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
An anti-shake motor, comprising a casing (1), a base (47), a frame (36), and a carrier (21) for fixing a lens. The frame (36) is slidably connected to the base (47), and the casing (1) is fixedly connected to the base (47), to limit the moving range of the frame (36); return springs (5) for guiding the frame (36) to return to an initial position are provided between the frame (36) and the base (47). By providing sliding mechanisms between the frame (36) and the base (47), the frame (36) is slidably connected to the base (47); restriction of a suspension solution is avoided, and an XY axis plane can achieve a correction amplitude of 3 degrees.
Description
本发明涉及一种防抖马达,用于手机、笔记本电脑等便携设备的摄像头防抖。The invention relates to an anti-shake motor, which is used for anti-shake of cameras of portable devices such as mobile phones and notebook computers.
近来,便携式相机、智能手机、平板电脑等便携终端设备上均配置了高性能的镜头驱动装置。这些镜头驱动装置一般具有自动对焦和防抖动功能。防抖动功能能够减少由外部震动或使用者手晃动造成的模糊。Recently, high-performance lens drive devices have been installed in portable terminal devices such as portable cameras, smartphones, and tablet PCs. These lens driving devices generally have autofocus and anti-shake functions. The anti-shake feature reduces blur caused by external vibrations or the shaking of the user's hand.
现有的具有防抖动功能的镜头驱动装置中,为了实现自动对焦,将对焦线圈通电,从而驱动镜头沿其光轴方向升降。然而,这些镜头驱动装置中,为了将电流从镜头模块外部引入到对焦线圈一般需要悬丝,悬丝依靠弹性恢复力来防止抖动,从而促使镜头驱动装置迅速恢复到初始位置上,因此,悬丝在镜头驱动装置中的作用包括:电路连接、承载镜头和AF马达、弹性摇动进行防抖修正,采用悬丝存在的问题有:当承载较重镜头时,悬丝的防抖修正幅度较小,同时悬丝也容易弯折变形,悬丝两端焊点易松动,进而影响马达电路连接的稳定性及防抖修正的精度。In an existing lens driving device with an anti-shake function, in order to realize automatic focusing, the focusing coil is energized to drive the lens up and down along its optical axis. However, in these lens driving devices, in order to introduce the current from the outside of the lens module to the focusing coil, suspension wires are generally required. The suspension wires rely on elastic restoring force to prevent shaking, thereby prompting the lens driving device to quickly return to the original position. Therefore, the suspension wires The role in the lens drive device includes: circuit connection, carrying the lens and AF motor, and elastic shaking for anti-shake correction. The problems with the suspension wire are: when the heavy lens is loaded, the anti-shake correction range of the suspension wire is small, At the same time, the suspension wire is also easy to bend and deform, and the solder joints at both ends of the suspension wire are easy to loosen, which in turn affects the stability of the motor circuit connection and the accuracy of the anti-shake correction.
发明内容Contents of the invention
本发明的目的是提供一种结构新颖独特,使用方便,并且能够有效提升防抖性能的防抖马达;具体技术方案为:The purpose of the present invention is to provide an anti-shake motor with a novel and unique structure, easy to use, and can effectively improve the anti-shake performance; the specific technical solution is:
一种防抖马达,包括外壳、底座、框架和用于固定镜片的载体;所述框架与所述底座滑动连接,所述外壳与底座固定连接,限制框架的移动范围;框架与底座之间设置有用于引导框架回归初始位置的复位弹簧。An anti-shake motor, comprising a housing, a base, a frame and a carrier for fixing lenses; the frame is slidably connected to the base, and the housing is fixedly connected to the base to limit the range of movement of the frame; There is a return spring to guide the frame back to its original position.
进一步,所述外壳位的外形为矩形;所述复位弹簧沿Z轴方向延伸,设置在所述矩形的四个角部。Further, the shape of the housing is rectangular; the return spring extends along the Z-axis direction and is arranged at four corners of the rectangle.
进一步,所述底座的顶端面设置至少3个滚珠槽,所述滚珠槽内设置有滚珠,所述框架的底端面设置有与所述滚珠配合的滑动平面,所述滑动平面与滚珠配合,实现框架与底座滑动连接。Further, at least three ball grooves are arranged on the top surface of the base, and balls are arranged in the ball grooves, and a sliding plane that cooperates with the balls is arranged on the bottom surface of the frame, and the sliding plane cooperates with the balls to realize The frame is slidably connected to the base.
进一步,所述底座的顶端面设置有X轴驱动线圈和Y轴驱动线圈;所述框架的底端面与所述X轴驱动线圈和所述Y轴驱动线圈对应位置分别设置有X轴磁石和Y轴磁石。Further, an X-axis drive coil and a Y-axis drive coil are provided on the top surface of the base; X-axis magnets and Y-axis magnets and Y-axis magnets are respectively provided on the bottom surface of the frame corresponding to the X-axis drive coil and the Y-axis drive coil. shaft magnet.
进一步,所述框架的内侧设置有一个支撑所述载体沿Z轴滑动的滑动支撑面;以及使载体顶靠所述滑动支撑面的顶靠机构。Further, the inside of the frame is provided with a sliding support surface that supports the sliding of the carrier along the Z axis; and an abutting mechanism that makes the carrier lean against the sliding support surface.
进一步,所述滑动支撑面由两个Z轴方向的滑动机构构成。Further, the sliding support surface is composed of two sliding mechanisms in the Z-axis direction.
进一步,所述滑动机构由导向柱和沿Z轴方向排布的两组滚珠组成。Further, the sliding mechanism is composed of a guide column and two groups of balls arranged along the Z-axis direction.
进一步,所述顶靠机构由所述载体上Z轴磁石和固定在所述框架上与所述Z轴磁石位置对应的磁吸片组成。Further, the abutting mechanism is composed of a Z-axis magnet on the carrier and a magnetic attraction piece fixed on the frame corresponding to the position of the Z-axis magnet.
本发明防抖马达通过在所述框架与所述底座之间设置滑动机构,使所述框架与所述底座滑动连接;避免采用悬丝方案的限制,XY轴平面能实现3度的修正幅度;同时,使得Z轴移动无需克服常规AF马达的上、下弹簧的弹力,驱动线圈通电电路短、焊点少,结构更加稳定,在提升 马达性能的同时能实现大推力驱动。The anti-shake motor of the present invention provides a sliding mechanism between the frame and the base, so that the frame and the base are slidably connected; avoiding the restriction of the suspension wire scheme, the XY axis plane can achieve a correction range of 3 degrees; At the same time, the movement of the Z-axis does not need to overcome the elastic force of the upper and lower springs of the conventional AF motor. The drive coil has a short power circuit, fewer solder joints, and a more stable structure. It can achieve high-thrust drive while improving the performance of the motor.
图1为本发明防抖马达外形结构示意图;Fig. 1 is a schematic diagram of the appearance and structure of the anti-shake motor of the present invention;
[根据细则26改正10.11.2021]
图2为底座单元结构示意图;[Correction 10.11.2021 under Rule 26]
Figure 2 is a schematic diagram of the structure of the base unit;
图2为底座单元结构示意图;[Correction 10.11.2021 under Rule 26]
Figure 2 is a schematic diagram of the structure of the base unit;
图3为本发明防抖马达结构示意图分解图;Fig. 3 is an exploded view of the structural schematic diagram of the anti-shake motor of the present invention;
图4为框架单元结构示意图;Fig. 4 is a structural schematic diagram of a frame unit;
图5为载体单元结构示意图。Fig. 5 is a schematic diagram of the structure of the carrier unit.
图中:1、外壳;2、载体单元;21、载体;22、Z轴磁石;23、导向柱;24、导向滚珠;25、Z轴霍尔磁石;3、框架单元;31、X轴磁石;32、Y轴磁石;33、FPC;331、Z轴驱动线圈;332、Z轴霍尔芯片;34、挡磁片;35、磁吸片;36、框架;37、滚珠容纳槽;4、底座单元;41、滑动平面滚珠;42、X轴驱动线圈;43、Y轴驱动线圈;44、接口端子;45、X轴霍尔芯片;46、Y轴霍尔芯片;47、底座;5、复位弹簧。In the figure: 1. Shell; 2. Carrier unit; 21. Carrier; 22. Z-axis magnet; 23. Guide column; 24. Guide ball; 25. Z-axis Hall magnet; 3. Frame unit; 31. X-axis magnet ;32, Y-axis magnet; 33, FPC; 331, Z-axis driving coil; 332, Z-axis Hall chip; Base unit; 41. Sliding plane ball; 42. X-axis drive coil; 43. Y-axis drive coil; 44. Interface terminal; 45. X-axis Hall chip; 46. Y-axis Hall chip; 47. Base; 5. return spring.
下面利用实施例对本发明进行更全面的说明。本发明可以体现为多种不同形式,并不应理解为局限于这里叙述的示例性实施例。The present invention will be described more fully below using examples. This invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein.
为了易于说明,在这里可以使用诸如“上”、“下”“左”“右”等空间相对术语,用于说明图中示出的一个元件或特征相对于另一个元件或特征的关系。应该理解的是,除了图中示出的方位之外,空间术语意在于包括装置在使用或操作中的不同方位。例如,如果图中的装置被倒置,被叙述为位于其他元件或特征“下”的元件将定位在其他元件或特征“上”。因此,示例性术语“下”可以包含上和下方位两者。装置可以以其他方式定位(旋转90度或位于其他方位),这里所用的空间相对说明可相应地解释。For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative specifications used herein interpreted accordingly.
如图1~图4所示,本实施例中的防抖马达,包括外壳1、底座47、框架36和用于固定镜片的载体21;其中,所述框架36与所述底座47滑动连接。由于不再采用悬丝连接所述框架36与所述底座47,当X轴驱动线圈42驱动X轴磁石31或者Y轴驱动线圈43驱动Y轴磁石32时,框架36可以相对底座47自由滑动,阻力小;不再受到悬丝的阻碍;修正幅度由一般OIS马达的1度-2度提高到3度。自然,也解决了悬丝带来的容易弯折变形、两端焊点易松动等问题。As shown in FIGS. 1 to 4 , the anti-shake motor in this embodiment includes a housing 1 , a base 47 , a frame 36 and a carrier 21 for fixing lenses; wherein, the frame 36 is slidably connected to the base 47 . Since the suspension wire is no longer used to connect the frame 36 and the base 47, when the X-axis drive coil 42 drives the X-axis magnet 31 or the Y-axis drive coil 43 drives the Y-axis magnet 32, the frame 36 can slide freely relative to the base 47, The resistance is small; it is no longer hindered by the suspension wire; the correction range is increased from 1 to 2 degrees of the general OIS motor to 3 degrees. Naturally, it also solves the problems of easy bending and deformation caused by hanging wires, and easy loosening of solder joints at both ends.
由于所述外壳1与底座47固定连接,可以限制框架的移动范围,避免框架超出线圈可控范围;框架36与底座47之间设置有用于引导框架36回归初始位置的复位弹簧5;使得不需要防抖操作时,框架36处于底座47中心的初始位置,防抖范围能够各个方向均衡。Because described shell 1 is fixedly connected with base 47, can limit the range of movement of frame, avoids frame beyond the controllable range of coil; Be provided with the back-moving spring 5 that is used to guide frame 36 to return to original position between frame 36 and base 47; Make not need During the anti-shake operation, the frame 36 is at the initial position at the center of the base 47, and the anti-shake range can be balanced in all directions.
所述外壳的外形设置为矩形,有利于产品小型化,加工和使用也方便;这时,所述复位弹簧5可以设置在所述矩形的四个角部。所述复位弹簧5可以设置为沿Z轴方向延伸,有利于产品小型化。当然,所述复位弹簧5也可以向内倾斜,或者向外倾斜;只需要在X轴驱动线圈42和Y轴驱动线圈43均不通电的情况下,将框架36拉回处于底座47中心的初始位置就行。所述外壳的外形可以为圆柱状或者六边形等形状;外壳为其他形状时,复位弹簧5沿外壳外缘均布。The shape of the housing is set as a rectangle, which is beneficial to the miniaturization of the product, and is also convenient for processing and use; at this time, the return spring 5 can be arranged at the four corners of the rectangle. The return spring 5 can be set to extend along the Z-axis direction, which is beneficial to product miniaturization. Of course, the return spring 5 can also be inclined inwardly or outwardly; it only needs to pull the frame 36 back to the initial position at the center of the base 47 when the X-axis driving coil 42 and the Y-axis driving coil 43 are not powered. The location will do. The outer shape of the outer shell can be cylindrical or hexagonal; when the outer shell is in other shapes, the return springs 5 are evenly distributed along the outer edge of the outer shell.
如图2所示,所述底座的顶端面设置至少3个滚珠槽,所述滚珠槽内设置有滑动平面滚珠41,所有滑动平面滚珠41的定点构成滑动支撑平面;采用滚珠有利于降低底座与框架相对滑动时的摩 擦力。所述框架的底端面设置有与所述滚珠配合的滑动平面,所述滑动平面与滑动平面滚珠41配合,实现框架与底座滑动连接。这种滑动连接机构结构简单,可以实现大幅度的补偿角度,同时位移控制更精准、灵敏度更高、可靠性更强。其中,滑动平面滚珠41的安装槽空间大于滑动平面滚珠41的直径;使滑动平面滚珠41在安装槽内尽可能滚动,减少滑动平面滚珠41在安装槽内的滑动运动。还可以采用现有的滑动机构来实现所述框架36与所述底座47滑动连接。例如:两组滑轨、滑块构成X轴方向滑动平台;与两组滑轨、滑块构成Y轴方向滑动平台组合形成XY方向的自由滑动;或者利用永磁体的斥力将框架36悬浮在底座47上方。As shown in Figure 2, at least 3 ball grooves are arranged on the top surface of the base, and sliding plane balls 41 are arranged in the ball grooves, and the fixed points of all the sliding plane balls 41 form a sliding support plane; Friction when the frames slide relative to each other. The bottom end surface of the frame is provided with a sliding plane that cooperates with the balls, and the sliding plane cooperates with the sliding plane balls 41 to realize the sliding connection between the frame and the base. This sliding connection mechanism has a simple structure, can realize a large compensation angle, and at the same time has more precise displacement control, higher sensitivity, and stronger reliability. Wherein, the installation groove space of the sliding plane ball 41 is larger than the diameter of the sliding plane ball 41; the sliding plane ball 41 is rolled as much as possible in the installation groove, and the sliding movement of the sliding plane ball 41 in the installation groove is reduced. An existing sliding mechanism can also be used to realize the sliding connection between the frame 36 and the base 47 . For example: two sets of slide rails and sliders constitute a sliding platform in the X-axis direction; a combination of two sets of slide rails and sliders constitutes a sliding platform in the Y-axis direction to form a free sliding in the XY direction; or the frame 36 is suspended on the base by the repulsive force of the permanent magnet 47 above.
可以在所述底座的顶端面设置X轴驱动线圈和Y轴驱动线圈;所述框架的底端面与所述X轴驱动线圈和所述Y轴驱动线圈对应位置分别设置有X轴磁石和Y轴磁石。需要通电的X轴驱动线圈和Y轴驱动线圈安装在固定不动的底座上;不需要通电的X轴磁石和Y轴磁石安装在活动的框架上,有利于降低产品的故障率。An X-axis driving coil and a Y-axis driving coil can be arranged on the top surface of the base; X-axis magnets and Y-axis magnets and Y-axis magnets can be respectively arranged on the bottom surface of the frame corresponding to the X-axis driving coil and the Y-axis driving coil. magnet. The X-axis driving coil and Y-axis driving coil that need to be powered are installed on a fixed base; the X-axis magnets and Y-axis magnets that do not need to be powered are installed on a movable frame, which is beneficial to reduce the failure rate of the product.
为了减少阻力,套设在框架36内的载体21与框架36必须间隙配合。为了进一步降低阻力,所述框架36的内侧设置有一个支撑所述载体21沿Z轴滑动的滑动支撑面;同时,还设置了使载体顶靠所述滑动支撑面的顶靠机构。通过顶靠机构确保载体21沿Z轴滑动时,始终与滑动支撑面接触,最大程度利用滑动支撑面降低阻力。In order to reduce resistance, the carrier 21 sleeved in the frame 36 and the frame 36 must be clearance fit. In order to further reduce the resistance, a sliding support surface for supporting the sliding of the carrier 21 along the Z-axis is provided on the inside of the frame 36 ; at the same time, an abutting mechanism for making the carrier lean against the sliding support surface is also provided. The abutment mechanism ensures that when the carrier 21 slides along the Z axis, it is always in contact with the sliding support surface, and the sliding support surface is used to the greatest extent to reduce resistance.
所述滑动支撑面由两个Z轴方向的滑动机构构成。滑动机构可以由滑块、导轨组成。The sliding support surface is composed of two sliding mechanisms in the Z-axis direction. The sliding mechanism can be made up of sliders and guide rails.
如图4(为方便表示,将框架单元3绕Z轴旋转了180度)所示,所述滑动机构也可以由导向柱23和沿Z轴方向排布的两组导向滚珠24组成;采用滚珠有利于减小滑动机构的摩擦力。框架36相邻的两个角均设置有滚珠容纳槽37,每组导向滚珠24至少两个。应避免Z轴方向相邻滚珠直接接触,造成阻力增大。在相邻的两个导向滚珠24之间设置过渡滚珠,过渡滚珠直径小于支撑滚珠的直径;导向滚珠24与导向柱23接触,滚动方向相同,均与过渡滚珠滚动方向相反,有利于降低摩擦力,即驱动阻力小,进而有利于降低马达功耗并实现大推力驱动;又不必加深导向滚珠24的容纳槽深度。As shown in Figure 4 (for convenience, the frame unit 3 has been rotated 180 degrees around the Z axis), the sliding mechanism can also be made up of guide columns 23 and two groups of guide balls 24 arranged along the Z axis direction; It is beneficial to reduce the friction force of the sliding mechanism. Two adjacent corners of the frame 36 are provided with ball receiving grooves 37 , and each set of guide balls 24 has at least two balls. Direct contact with adjacent balls in the Z-axis direction should be avoided, resulting in increased resistance. A transition ball is set between two adjacent guide balls 24, and the diameter of the transition ball is smaller than the diameter of the support ball; the guide ball 24 is in contact with the guide column 23, and the rolling direction is the same, which is opposite to the rolling direction of the transition ball, which is conducive to reducing friction , that is, the driving resistance is small, which is conducive to reducing the power consumption of the motor and realizing high-thrust driving; and it is not necessary to deepen the depth of the accommodation groove of the guide ball 24 .
所述顶靠机构由所述载体上Z轴磁石22和固定在所述框架36上与所述Z轴磁石22位置对应的磁吸片35组成。磁吸片35与Z轴磁石22相吸,使载体21沿Z轴滑动时,始终与滑动支撑面接触。当然,还可以采用磁性相反的磁石,推动远侧的Z轴磁石22。The abutment mechanism is composed of the Z-axis magnet 22 on the carrier and the magnetic attraction piece 35 fixed on the frame 36 corresponding to the position of the Z-axis magnet 22 . The magnetic attraction piece 35 is attracted to the Z-axis magnet 22, so that when the carrier 21 slides along the Z-axis, it is always in contact with the sliding support surface. Of course, magnets with opposite magnetic properties can also be used to push the far Z-axis magnet 22 .
工作时,底座47、X轴驱动线圈42、Y轴驱动线圈43、X轴霍尔芯片45、Y轴霍尔芯片46构成底座单元4。底座单元4底部设置的接口端子44引入控制线圈的电流,输出反馈X轴磁石31和Y轴磁石32偏移位置的霍尔信号,并为霍尔芯片提供电源。X轴驱动线圈42和Y轴驱动线圈43均为两个线圈;提供更大的驱动力;两个线圈对角设置,与下方的X轴磁石31、Y轴磁石32错开,有利于减少Z轴磁石22与X轴磁石31、Y轴磁石32之间的干扰;而且安装空间增大大,可以安装更大的驱动线圈,也有利于提供更大的驱动力。相对应,滑动平面滚珠41安装在4个边部。X轴霍尔芯片45、Y轴霍尔芯片46的安装位置尽可能靠近X轴磁石31、Y轴磁石32;例如,安装在X轴驱动线圈42、Y轴驱动线圈43环内的空间。During operation, the base 47 , the X-axis driving coil 42 , the Y-axis driving coil 43 , the X-axis Hall chip 45 and the Y-axis Hall chip 46 constitute the base unit 4 . The interface terminal 44 provided at the bottom of the base unit 4 introduces the current of the control coil, outputs a Hall signal for feeding back the offset positions of the X-axis magnet 31 and the Y-axis magnet 32 , and provides power for the Hall chip. Both the X-axis driving coil 42 and the Y-axis driving coil 43 are two coils; providing greater driving force; the two coils are arranged diagonally, staggered with the X-axis magnet 31 and the Y-axis magnet 32 below, which is beneficial to reduce the Z-axis The interference between the magnet 22 and the X-axis magnet 31 and the Y-axis magnet 32; and the installation space is increased, a larger driving coil can be installed, and it is also beneficial to provide a greater driving force. Correspondingly, the sliding plane balls 41 are installed on the four sides. The installation positions of the X-axis Hall chip 45 and the Y-axis Hall chip 46 are as close as possible to the X-axis magnet 31 and the Y-axis magnet 32 ;
框架36、X轴磁石31、Y轴磁石32、FPC33、Z轴驱动线圈331、Z轴霍尔芯片332和磁吸片35构成框架单元3。复位弹簧5下端与埋设在底座中的连接件连接;上端与埋设在框架36内的连接件连接;将控制电流引至框架36的连接件;再通过连接件与贴在框架36外侧壁上的FPC33 输入接口焊接连接;Z轴驱动线圈331从FPC33获得驱动电流。Z轴霍尔芯片332从FPC33获得电源,并通过FPC33传输反馈信号。为避免Z轴磁石22的干扰,Z轴霍尔芯片332、Z轴霍尔磁石25应尽量远离Z轴磁石22。The frame unit 3 is composed of the frame 36 , the X-axis magnet 31 , the Y-axis magnet 32 , the FPC 33 , the Z-axis drive coil 331 , the Z-axis Hall chip 332 and the magnetic sheet 35 . The lower end of the return spring 5 is connected with the connector embedded in the base; the upper end is connected with the connector embedded in the frame 36; the control current is led to the connector of the frame 36; The FPC33 input interface is welded and connected; the Z-axis driving coil 331 obtains the driving current from the FPC33. The Z-axis Hall chip 332 obtains power from the FPC33, and transmits a feedback signal through the FPC33. In order to avoid interference from the Z-axis magnet 22 , the Z-axis Hall chip 332 and the Z-axis Hall magnet 25 should be as far away from the Z-axis magnet 22 as possible.
为了减少Z轴磁石22与X轴磁石31、Y轴磁石32之间的干扰,在框架36的底部安装有挡磁片34。将Z轴磁石22设置位上下端面向外倾斜的梯形;使磁场偏向外侧,远离X轴磁石31、Y轴磁石32,也有利于减少Z轴磁石22与X轴磁石31、Y轴磁石32之间的干扰。In order to reduce the interference between the Z-axis magnet 22 , the X-axis magnet 31 and the Y-axis magnet 32 , a magnetic blocking sheet 34 is installed at the bottom of the frame 36 . The Z-axis magnet 22 is set in a trapezoid whose upper and lower ends are inclined outward; the magnetic field is biased to the outside, away from the X-axis magnet 31 and the Y-axis magnet 32, which also helps to reduce the distance between the Z-axis magnet 22 and the X-axis magnet 31 and Y-axis magnet 32. Interference between.
载体21、Z轴磁石22和Z轴霍尔磁石25构成载体单元2。Z轴驱动线圈331驱动Z轴磁石22沿Z轴运动。Z轴霍尔磁石25通过Z轴霍尔芯片332反馈Z轴位移。固定在框架36侧壁的磁吸片35与Z轴霍尔磁石25相吸,使载体21靠向磁吸片35一侧。The carrier 21 , the Z-axis magnet 22 and the Z-axis Hall magnet 25 constitute the carrier unit 2 . The Z-axis driving coil 331 drives the Z-axis magnet 22 to move along the Z-axis. The Z-axis Hall magnet 25 feeds back the Z-axis displacement through the Z-axis Hall chip 332 . The magnetic attraction piece 35 fixed on the side wall of the frame 36 is attracted to the Z-axis Hall magnet 25 , so that the carrier 21 is close to the side of the magnetic attraction piece 35 .
如图5所示,框架36设置的滚珠容纳槽内安装有两组导向滚珠24,载体21设置有导向柱23;载体21靠向向磁吸片35一侧时,导向柱23与导向滚珠24紧密接触。载体21相对于框架36沿Z轴运动时,导向滚珠24与导向柱23为滚动摩擦,摩擦力很小。As shown in Figure 5, two groups of guide balls 24 are installed in the ball receiving groove that frame 36 is provided with, and carrier 21 is provided with guide column 23; Close contact. When the carrier 21 moves along the Z-axis relative to the frame 36, the guide ball 24 and the guide post 23 have rolling friction, and the friction force is very small.
本发明防抖马达通过在所述框架与所述底座之间设置滑动机构,使所述框架与所述底座滑动连接;避免采用悬丝方案的限制,XY轴平面能实现3度的修正幅度;同时,使得Z轴移动无需克服常规AF马达的上、下弹簧的弹力,驱动线圈通电电路短、焊点少,结构更加稳定、Z轴滚动驱动只需要克服较小的驱动阻力,因此功耗低,在提升马达性能的同时能实现大推力驱动。The anti-shake motor of the present invention provides a sliding mechanism between the frame and the base, so that the frame and the base are slidably connected; avoiding the restriction of the suspension wire scheme, the XY axis plane can achieve a correction range of 3 degrees; At the same time, the Z-axis movement does not need to overcome the elastic force of the upper and lower springs of the conventional AF motor, the drive coil has a short power circuit, fewer solder joints, and a more stable structure. The Z-axis rolling drive only needs to overcome a small driving resistance, so the power consumption is low. , while improving the performance of the motor, it can realize high-thrust drive.
上述示例只是用于说明本发明,除此之外,还有多种不同的实施方式,而这些实施方式都是本领域技术人员在领悟本发明思想后能够想到的,故,在此不再一一列举。The above examples are only used to illustrate the present invention. In addition, there are many different implementations, and these implementations can be thought of by those skilled in the art after comprehending the ideas of the present invention. List them all.
Claims (8)
- 一种防抖马达,包括外壳、底座、框架和用于固定镜片的载体;其特征在于,所述框架与所述底座滑动连接,所述外壳与底座固定连接,限制框架的移动范围;框架与底座之间设置有用于引导框架回归初始位置的复位弹簧。An anti-shake motor, comprising a shell, a base, a frame and a carrier for fixing the lens; it is characterized in that the frame is slidably connected to the base, and the shell is fixedly connected to the base to limit the range of movement of the frame; the frame and A return spring for guiding the frame to return to the initial position is arranged between the bases.
- 如权利要求1所述的防抖马达,其特征在于,所述外壳的外形为矩形;所述复位弹簧沿Z轴方向延伸,设置在所述矩形的四个角部。The anti-vibration motor according to claim 1, characterized in that, the shape of the housing is rectangular; the return spring extends along the Z-axis direction and is arranged at four corners of the rectangle.
- 如权利要求1所述的防抖马达,其特征在于,所述底座的顶端面设置至少3个滚珠槽,所述滚珠槽内设置有滚珠,所述框架的底端面设置有与所述滚珠配合的滑动平面,所述滑动平面与滚珠配合,实现框架与底座滑动连接。The anti-shake motor according to claim 1, wherein at least three ball grooves are arranged on the top surface of the base, balls are arranged in the ball grooves, and a bottom surface of the frame is arranged to cooperate with the balls. The sliding plane is matched with the ball to realize the sliding connection between the frame and the base.
- 如权利要求1所述的防抖马达,其特征在于,所述底座的顶端面设置有X轴驱动线圈和Y轴驱动线圈;所述框架的底端面与所述X轴驱动线圈和所述Y轴驱动线圈对应位置分别设置有X轴磁石和Y轴磁石。The anti-shake motor according to claim 1, wherein the top surface of the base is provided with an X-axis driving coil and a Y-axis driving coil; the bottom surface of the frame is connected with the X-axis driving coil and the Y-axis driving coil. X-axis magnets and Y-axis magnets are respectively arranged at corresponding positions of the axis driving coils.
- 如权利要求1所述的防抖马达,其特征在于,所述框架的内侧设置有一个支撑所述载体沿Z轴滑动的滑动支撑面;以及使载体顶靠所述滑动支撑面的顶靠机构。The anti-shake motor according to claim 1, characterized in that, the inside of the frame is provided with a sliding support surface that supports the sliding of the carrier along the Z axis; and a supporting mechanism that makes the carrier lean against the sliding support surface .
- 如权利要求5所述的防抖马达,其特征在于,所述滑动支撑面由两个Z轴方向的滑动机构构成。The anti-vibration motor according to claim 5, wherein the sliding support surface is composed of two sliding mechanisms in the Z-axis direction.
- 如权利要求6所述的防抖马达,其特征在于,所述滑动机构由导向柱和沿Z轴方向排布的两组滚珠组成。The anti-shake motor according to claim 6, wherein the sliding mechanism is composed of a guide column and two groups of balls arranged along the Z-axis direction.
- 如权利要求6所述的防抖马达,其特征在于,所述顶靠机构由所述载体上Z轴磁石和固定在所述框架上与所述Z轴磁石位置对应的磁吸片组成。The anti-shake motor according to claim 6, wherein the abutting mechanism is composed of a Z-axis magnet on the carrier and a magnetic attraction piece fixed on the frame corresponding to the position of the Z-axis magnet.
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CN202110861764.X | 2021-07-29 | ||
CN202110861764.XA CN113515001A (en) | 2021-07-29 | 2021-07-29 | Anti-shake motor |
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WO2023005040A1 true WO2023005040A1 (en) | 2023-02-02 |
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CN113515001A (en) * | 2021-07-29 | 2021-10-19 | 上海比路电子股份有限公司 | Anti-shake motor |
WO2023151666A1 (en) * | 2022-02-14 | 2023-08-17 | 宁波舜宇光电信息有限公司 | Motor driving device and camera module |
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CN111182194A (en) * | 2020-03-13 | 2020-05-19 | 厦门新鸿洲精密科技有限公司 | Triaxial anti-shake voice coil motor structure |
CN211018945U (en) * | 2019-10-21 | 2020-07-14 | 北京美拓斯电子有限公司 | Be applied to novel XY translation structure of anti-shake system |
CN211429403U (en) * | 2020-03-17 | 2020-09-04 | Oppo广东移动通信有限公司 | Optical anti-shake motor, camera module and electronic equipment |
CN112650002A (en) * | 2020-12-31 | 2021-04-13 | 上海比路电子股份有限公司 | Anti-shake structure, anti-shake system and camera device |
CN112650001A (en) * | 2020-12-31 | 2021-04-13 | 上海比路电子股份有限公司 | Anti-shake structure, anti-shake system and camera device |
CN113515001A (en) * | 2021-07-29 | 2021-10-19 | 上海比路电子股份有限公司 | Anti-shake motor |
CN215264321U (en) * | 2021-07-29 | 2021-12-21 | 上海比路电子股份有限公司 | Anti-shake motor |
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2021
- 2021-07-29 CN CN202110861764.XA patent/CN113515001A/en active Pending
- 2021-10-29 WO PCT/CN2021/127713 patent/WO2023005040A1/en active Application Filing
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US20060115251A1 (en) * | 2004-12-01 | 2006-06-01 | Pentax Corporation | Imaging device having an optical image stabilizer |
JP2010170039A (en) * | 2009-01-26 | 2010-08-05 | Nikon Corp | Shake correcting device and optical equipment |
CN107277338A (en) * | 2017-08-14 | 2017-10-20 | 河南省皓泽电子有限公司 | A kind of automatic focusing mechanism with shake blur correcting structure |
CN211018945U (en) * | 2019-10-21 | 2020-07-14 | 北京美拓斯电子有限公司 | Be applied to novel XY translation structure of anti-shake system |
CN111182194A (en) * | 2020-03-13 | 2020-05-19 | 厦门新鸿洲精密科技有限公司 | Triaxial anti-shake voice coil motor structure |
CN211429403U (en) * | 2020-03-17 | 2020-09-04 | Oppo广东移动通信有限公司 | Optical anti-shake motor, camera module and electronic equipment |
CN112650002A (en) * | 2020-12-31 | 2021-04-13 | 上海比路电子股份有限公司 | Anti-shake structure, anti-shake system and camera device |
CN112650001A (en) * | 2020-12-31 | 2021-04-13 | 上海比路电子股份有限公司 | Anti-shake structure, anti-shake system and camera device |
CN113515001A (en) * | 2021-07-29 | 2021-10-19 | 上海比路电子股份有限公司 | Anti-shake motor |
CN215264321U (en) * | 2021-07-29 | 2021-12-21 | 上海比路电子股份有限公司 | Anti-shake motor |
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