WO2022088420A1 - Lens driving device - Google Patents
Lens driving device Download PDFInfo
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- WO2022088420A1 WO2022088420A1 PCT/CN2020/136350 CN2020136350W WO2022088420A1 WO 2022088420 A1 WO2022088420 A1 WO 2022088420A1 CN 2020136350 W CN2020136350 W CN 2020136350W WO 2022088420 A1 WO2022088420 A1 WO 2022088420A1
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- WIPO (PCT)
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- circuit board
- flexible circuit
- lens
- driving device
- base
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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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
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
Definitions
- the embodiment of the present invention provides a lens driving device, which aims to solve the problems of complex production process and low yield in the existing lens driving device, which requires integral injection of metal pins on a circuit board.
- FIG. 7 is an enlarged schematic view of the structure of the frame selection part in FIG. 6 .
- the housing includes a base 11 and an upper cover 2 connected to the base 11 .
- hollow positions 16 are evenly provided on the base 11 , and the rigid circuit board 12 and the flexible circuit board 13 are welded through the hollow positions 16 .
- the welding of the rigid circuit board 12 and the flexible circuit board 13 can be facilitated.
- the number of hollow positions 16 on the base 11 may be three, five, six, etc. according to actual requirements, and may also be unevenly arranged on the base 11 .
- the number of anti-shake coils 22 is four, and each pair is set on the rigid circuit board 12 in a corresponding group.
- the connection lines formed by the two groups of anti-shake coils 22 are perpendicular to each other.
- the anti-shake coils 22 also pass through the rigid circuit board 12,
- the flexible circuit board 13 is electrically connected to the hall sensor 18 .
- the illustrated lens assembly includes a lens barrel 4 for receiving the lens 1 .
- the driving coil 5 is sleeved on the lens barrel 4 , and in order to better sleeve the driving coil 5 , the outer wall of the lens barrel 4 is surrounded with grooves for the driving coil 5 to be sleeved.
- the anti-shake coil 22 is divided into a first-direction anti-shake coil 22 and a second-direction anti-shake coil 22 in two mutually perpendicular directions perpendicular to the optical axis direction, which are provided with the first direction and the second direction respectively. driving force.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The present utility model provides a lens driving device, comprising: a housing; a circuit board assembly, the circuit board assembly comprising a flexible circuit board arranged on a base and a rigid circuit board arranged on the flexible circuit board, and signal connection parts are arranged on both sides of the flexible circuit board; a Hall sensor, the Hall sensor being arranged on the flexible circuit board; an anti-shake coil; a lens assembly; a driving coil; a frame; leaf springs; a conductive support; and magnetic steel. According to embodiments of the present utility model, a stacked design of a flexible circuit board and a rigid circuit board is used on a base, and signal connection parts are arranged on both sides of the flexible circuit board, so to as lead out an optical anti-shake signal by means of the flexible circuit board, thereby avoiding the method of leading out the optical anti-shake signal using a metal pin, so that the overall structure is simplified and the design flexibility is improved.
Description
本实用新型属于拍摄设备技术领域，尤其涉及一种镜头驱动装置。The utility model belongs to the technical field of photographing equipment, in particular to a lens driving device.
随着生活水平的提高，数码相机、数码摄像机、智能手机、平板电脑等一些具有拍摄功能的设备已均具备自动对焦摄像头，而自动对焦摄像头需要镜头驱动装置进行驱动，以实现自动调焦及光学防抖。With the improvement of living standards, some devices with shooting functions such as digital cameras, digital video cameras, smart phones, and tablet computers have been equipped with auto-focus cameras. Anti-shake.
现有的镜头驱动装置包括外壳、框架、镜头组件、驱动线圈、磁钢、电路板、防抖线圈、霍尔传感器等。其中，光学防抖的信号引出需要在电路板上一体注塑金属插脚，以通过金属插脚将信号引出，而在电路板上一体注塑金属插脚的生产工艺不仅复杂，且成品率较低。The existing lens driving device includes a casing, a frame, a lens assembly, a driving coil, a magnetic steel, a circuit board, an anti-shake coil, a Hall sensor, and the like. Among them, the signal extraction of optical anti-shake requires integral injection of metal pins on the circuit board, so that the signal can be extracted through the metal pins, and the production process of integral injection of metal pins on the circuit board is not only complicated, but also has a low yield.
本实用新型实施例提供一种镜头驱动装置，旨在解决现有的镜头驱动装置中需要将在电路板一体注塑金属插脚，而导致生产工艺复杂，且成品率较低的问题。The embodiment of the present invention provides a lens driving device, which aims to solve the problems of complex production process and low yield in the existing lens driving device, which requires integral injection of metal pins on a circuit board.
本实用新型实施例是这样实现的，提供了一种镜头驱动装置，包括：外壳，所述外壳包括：底座、与所述底座连接的上盖；电路板组件，所述电路板组件包括：设置在所述底座上的软性电路板、设置在所述软性电路板上的硬性电路板，所述软性电路板的两侧设置有信号连接部；霍尔传感器，所述霍尔传感器设置在所述软性电路板上；防抖线圈，所述防抖线圈设置所述硬性电路板上；镜头组件，所述镜头组件包括用于收纳镜头的镜筒；驱动线圈，所述驱动线圈套设在所述镜筒上；框架，所述框架用于收纳所述镜头组件；弹性组件，所述弹性组件连接所述镜筒与所述框架；导电支撑件，所述导电支撑件的两端分别连接所述底座与所述框架，以使所述框架可沿着垂直于所述镜头光轴的方向运动；磁钢，所述磁钢设置在所述框架上，所述磁钢在所述硬性电路板上的投影至少部分与所述防抖线圈重叠。The embodiments of the present utility model are implemented in this way, and provide a lens driving device, comprising: a casing, the casing includes: a base, an upper cover connected to the base; a circuit board assembly, the circuit board assembly includes: setting The flexible circuit board on the base and the rigid circuit board arranged on the flexible circuit board are provided with signal connection parts on both sides of the flexible circuit board; Hall sensor, the Hall sensor is provided with On the flexible circuit board; an anti-shake coil, the anti-shake coil is arranged on the rigid circuit board; a lens assembly, the lens assembly includes a lens barrel for accommodating a lens; a driving coil, the driving coil sleeve a frame, the frame is used to accommodate the lens assembly; an elastic assembly, the elastic assembly connects the lens barrel and the frame; a conductive support, two ends of the conductive support The base and the frame are respectively connected, so that the frame can move along the direction perpendicular to the optical axis of the lens; a magnetic steel, the magnetic steel is arranged on the frame, and the magnetic steel is in the The projection on the rigid circuit board at least partially overlaps the anti-shake coil.
更进一步地，所述软性电路板的相对两侧向远离所述硬性电路板的方向弯折延伸以形成所述信号连接部。Further, opposite sides of the flexible circuit board are bent and extended in a direction away from the rigid circuit board to form the signal connection portion.
更进一步地，所述底座上设置有至少四个镂空位，所述硬性电路板与所述软性电路板通过所述镂空位焊接。Further, at least four hollow positions are provided on the base, and the rigid circuit board and the flexible circuit board are welded through the hollow positions.
更进一步地，所述底座上设置有第一钢片，所述第一钢片与所述底座一体成型，所述第一钢片的两端分别连接所述导电支撑件与所述软性电路板。Further, the base is provided with a first steel sheet, the first steel sheet is integrally formed with the base, and both ends of the first steel sheet are respectively connected to the conductive support and the flexible circuit plate.
更进一步地，所述霍尔传感器设置在所述软性电路板的底面，且所述底座上设置有用于避让所述霍尔传感器的避让位。Further, the Hall sensor is arranged on the bottom surface of the flexible circuit board, and an avoidance position for avoiding the Hall sensor is arranged on the base.
更进一步地，所述框架包括：塑胶主体、以及一体成型在所述塑胶主体上的第二钢片。Further, the frame includes: a plastic body, and a second steel sheet integrally formed on the plastic body.
更进一步地，所述磁钢粘接在所述第二钢片上。Further, the magnetic steel is bonded on the second steel sheet.
更进一步地，所述第二钢片为导磁片。Further, the second steel sheet is a magnetic conductive sheet.
更进一步地，所述防抖线圈一体成型在所述硬性电路板上。Further, the anti-shake coil is integrally formed on the rigid circuit board.
更进一步地，所述弹性组件包括：连接所述镜筒与所述框架的上平面的第一弹簧片、以及连接所述镜筒与所述框架的下平面的第二弹簧片。Further, the elastic component includes: a first spring piece connecting the lens barrel and the upper plane of the frame, and a second spring piece connecting the lens barrel and the lower plane of the frame.
本实用新型实施例通过在底座上采用软性电路板与硬性电路板的叠层设计，并在软性电路板的两侧设置信号连接部，从而通过软性电路板实现了光学防抖的信号引出，避免了使用金属插脚来实现光学防抖信号引出的方式，不仅简化了整体结构、且提高了设计的灵活性。In the embodiment of the present utility model, the laminated design of the flexible circuit board and the rigid circuit board is adopted on the base, and the signal connection parts are arranged on both sides of the flexible circuit board, so that the signal of optical anti-shake is realized through the flexible circuit board. The method of extracting the optical anti-shake signal by using metal pins is avoided, which not only simplifies the overall structure, but also improves the flexibility of design.
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.
图1是本实用新型实施例提供的一种镜头驱动装置容纳镜头后的结构示意图。FIG. 1 is a schematic structural diagram of a lens driving device provided by an embodiment of the present invention after accommodating a lens.
图2是本实用新型实施例提供的一种镜头驱动装置的爆炸结构示意图。2 is a schematic diagram of an exploded structure of a lens driving device provided by an embodiment of the present invention.
图3是本实用新型实施例提供的一种镜头驱动装置中部分爆炸结构示意图。FIG. 3 is a schematic diagram of a partial explosion structure in a lens driving device provided by an embodiment of the present invention.
图4是本实用新型实施例提供的一种镜头驱动装置的底面结构示意图。4 is a schematic diagram of a bottom surface structure of a lens driving device provided by an embodiment of the present invention.
图5是本实用新型实施例提供的一种镜头驱动装置去掉上盖的顶面结构示意图。5 is a schematic view of the top surface structure of a lens driving device provided by an embodiment of the present invention with the upper cover removed.
图6是图5中沿A-A向的剖视结构示意图。FIG. 6 is a schematic cross-sectional structure diagram along the A-A direction in FIG. 5 .
图7是图6中框选部分的结构放大示意图。FIG. 7 is an enlarged schematic view of the structure of the frame selection part in FIG. 6 .
图8是本实用新型实施例提供的一种镜头驱动装置去掉部分结构的底面结构示意图。FIG. 8 is a schematic view of the bottom surface of a lens driving device provided by an embodiment of the present invention with a part of the structure removed.
图9是本实用新型实施例提供的一种镜头驱动装置的顶面结构示意图。FIG. 9 is a schematic diagram of a top surface structure of a lens driving device provided by an embodiment of the present invention.
图10是图9中沿B-B向的剖视结构示意图。FIG. 10 is a schematic cross-sectional structure diagram along the B-B direction in FIG. 9 .
其中，1、镜头、2、上盖；3、第一弹簧片；4、镜筒；5、驱动线圈；6、磁钢；7、导电支撑件；8、框架；9、第二弹簧片；10、电路板组件；11、底座；12、硬性电路板；13、软性电路板；14、信号连接部；15、第一钢片；16、镂空位；17、避让位；18、霍尔传感器；19、第一连接部；20、第一弯曲部；21、第二连接部；22、防抖线圈；23、塑胶主体；24、第二钢片；25、圆形连接部；26、第二弯曲部；27、第三连接部。Among them, 1, lens, 2, upper cover; 3, first spring piece; 4, lens barrel; 5, driving coil; 6, magnetic steel; 7, conductive support; 8, frame; 9, second spring piece; 10, circuit board assembly; 11, base; 12, rigid circuit board; 13, flexible circuit board; 14, signal connection part; 15, first steel sheet; 16, hollow position; 17, avoidance position; 18, Hall sensor; 19, first connecting part; 20, first bending part; 21, second connecting part; 22, anti-shake coil; 23, plastic body; 24, second steel sheet; 25, circular connecting part; 26, The second bending part; 27, the third connecting part.
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.
本实用新型实施例提供了一种镜头驱动装置，结合附图1至附图10所示，包括：外壳、电路板组件10、霍尔传感器18、防抖线圈22、镜头组件、驱动线圈5、框架8、弹性组件、导电支撑件7、磁钢6。An embodiment of the present utility model provides a lens driving device, as shown in FIG. 1 to FIG. 10, including: a casing, a circuit board assembly 10, a Hall sensor 18, an anti-shake coil 22, a lens assembly, a driving coil 5, Frame 8, elastic components, conductive support 7, magnetic steel 6.
具体地，外壳：包括底座11、与底座11连接的上盖2。Specifically, the housing includes a base 11 and an upper cover 2 connected to the base 11 .
具体地，电路板组件10包括：设置在底座11上的软性电路板13、设置在软性电路板13上的硬性电路板12，软性电路板13的两侧设置有信号连接部14，信号连接部14用于引出光学防抖的信号。Specifically, the circuit board assembly 10 includes: a flexible circuit board 13 disposed on the base 11, a rigid circuit board 12 disposed on the flexible circuit board 13, and the two sides of the flexible circuit board 13 are provided with signal connection parts 14, The signal connection part 14 is used to draw out the optical anti-shake signal.
具体地，软性电路板13的相对两侧向远离硬性电路板12的方向弯折延伸以形成信号连接部14。其中，延伸的部分为软性电路板13两侧的部分。通过这样设置可便于光学防抖的信号引出，且能尽可能的缩小整体结构的宽度。Specifically, opposite sides of the flexible circuit board 13 are bent and extended in a direction away from the rigid circuit board 12 to form the signal connection portion 14 . The extended portion is the portion on both sides of the flexible circuit board 13 . By setting in this way, the signal extraction of optical anti-shake can be facilitated, and the width of the overall structure can be reduced as much as possible.
具体地，底座11上均匀的设置有四个镂空位16，硬性电路板12与软性电路板13通过镂空位16焊接。通过在底座11上设置镂空位16，可方便硬性电路板12与软性电路板13焊接。当然，根据实际需求底座11上的镂空位16还可以是三个、五个、六个等，且还可以不均匀的设置在底座11上。Specifically, four hollow positions 16 are evenly provided on the base 11 , and the rigid circuit board 12 and the flexible circuit board 13 are welded through the hollow positions 16 . By arranging the hollow space 16 on the base 11 , the welding of the rigid circuit board 12 and the flexible circuit board 13 can be facilitated. Of course, the number of hollow positions 16 on the base 11 may be three, five, six, etc. according to actual requirements, and may also be unevenly arranged on the base 11 .
具体地，防抖线圈22为四个，且两两对应为一组设置在硬性电路板12上，两组防抖线圈22形成的连线相互垂直，防抖线圈22还通过硬性电路板12、软性电路板13与霍尔传感器18电连接。Specifically, the number of anti-shake coils 22 is four, and each pair is set on the rigid circuit board 12 in a corresponding group. The connection lines formed by the two groups of anti-shake coils 22 are perpendicular to each other. The anti-shake coils 22 also pass through the rigid circuit board 12, The flexible circuit board 13 is electrically connected to the hall sensor 18 .
具体地，防抖线圈22一体成型在硬性电路板12上，从而可以提升防抖线圈22的稳固性，避免其脱落。Specifically, the anti-shake coil 22 is integrally formed on the rigid circuit board 12 , so that the stability of the anti-shake coil 22 can be improved and the falling-off thereof can be avoided.
具体地，霍尔传感器18为两个，且设置在软性电路板13的底面，而底座11上则在对应霍尔传感器18的位置设置有用于避让霍尔传感器18的避让位17。这样可方便霍尔传感器18的设置，且不会受到防抖线圈22的磁场影响。Specifically, there are two Hall sensors 18 and are arranged on the bottom surface of the flexible circuit board 13 , and an avoidance position 17 for avoiding the Hall sensor 18 is provided on the base 11 at a position corresponding to the Hall sensor 18 . In this way, the setting of the Hall sensor 18 is convenient, and it will not be affected by the magnetic field of the anti-shake coil 22 .
具体地，霍尔传感器18分别对应四个防抖线圈22中相邻的两个，以实现垂直于光轴方向的两个相互垂直方向上运动的感知。Specifically, the Hall sensors 18 correspond to two adjacent ones of the four anti-shake coils 22 respectively, so as to realize the perception of motion in two mutually perpendicular directions perpendicular to the optical axis direction.
具体地，所示镜头组件包括用于收纳镜头1的镜筒4。Specifically, the illustrated lens assembly includes a lens barrel 4 for receiving the lens 1 .
具体地，驱动线圈5套设在镜筒4上，而为了能更好的套设驱动线圈5，镜筒4的外壁环绕设置有凹槽，以供驱动线圈5套设。Specifically, the driving coil 5 is sleeved on the lens barrel 4 , and in order to better sleeve the driving coil 5 , the outer wall of the lens barrel 4 is surrounded with grooves for the driving coil 5 to be sleeved.
具体地，框架8用于收纳镜头1，框架8包括：塑胶主体23、以及一体注塑成型在塑胶主体23上的第二钢片24。其中，第二钢片24为四块，且分别成型在塑胶主体23的四边。通过在塑胶主体23上一体注塑第二钢片24，可在提高产品性能的前提下加强塑胶主体23的强度。当然，根据实际需求，还可在塑胶主体23上设置不同数量的第二钢片24。Specifically, the frame 8 is used for accommodating the lens 1 , and the frame 8 includes a plastic body 23 and a second steel sheet 24 integrally injection-molded on the plastic body 23 . Among them, the second steel sheet 24 is four pieces, and they are respectively formed on the four sides of the plastic body 23 . By integrally injecting the second steel sheet 24 on the plastic body 23 , the strength of the plastic body 23 can be enhanced on the premise of improving product performance. Of course, different numbers of second steel sheets 24 can also be provided on the plastic body 23 according to actual requirements.
具体地，弹性组件包括：连接镜筒4与框架8的上平面的第一弹簧片3、以及连接镜筒4与框架8的下平面的第二弹簧片9。其中，第一弹簧片3为四个，均匀分布以连接镜筒4与框架8。Specifically, the elastic component includes: a first spring piece 3 connecting the lens barrel 4 and the upper plane of the frame 8 , and a second spring piece 9 connecting the lens barrel 4 and the lower plane of the frame 8 . Among them, there are four first spring pieces 3 , which are evenly distributed to connect the lens barrel 4 and the frame 8 .
第一弹簧片3包括：与镜筒4上平面连接的第一连接部19、与第一连接部19连接的第一弯曲部20、以及与第一弯曲部20连接的第二连接部21，第二连接部21与框架8连接。The first spring piece 3 includes: a first connecting portion 19 connected with the upper plane of the lens barrel 4 , a first curved portion 20 connected with the first connecting portion 19 , and a second connecting portion 21 connected with the first curved portion 20 , The second connection portion 21 is connected to the frame 8 .
第二弹簧片9包括：环绕设置在镜筒4下平面上的圆形连接部25、与圆形连接部25连接的第二弯曲部26、以及与弯曲部连接的第三连接部27，第三连接部27与框架8连接。其中，第二弯曲部26与第三连接部27均为四个，且分别与四个第一弹簧片3的位置一一对应。The second spring piece 9 includes: a circular connecting portion 25 arranged around the lower plane of the lens barrel 4, a second curved portion 26 connected with the circular connecting portion 25, and a third connecting portion 27 connected with the curved portion. The three connecting parts 27 are connected to the frame 8 . Among them, there are four second bending parts 26 and third connecting parts 27 , and they correspond to the positions of the four first spring pieces 3 one-to-one respectively.
具体地，框架8通过弹性组件将镜筒4收纳入内，且相互之间并未接触。Specifically, the frame 8 accommodates the lens barrel 4 through the elastic component, and does not contact each other.
具体地，导电支撑件7为悬丝，导电支撑件7的两端分别连接底座11与框架8，以使框架8可沿着垂直于镜头1光轴的方向运动，相当于，框架8通过导电支撑件7悬空于底座11的上方。Specifically, the conductive support 7 is a suspension wire, and the two ends of the conductive support 7 are respectively connected to the base 11 and the frame 8, so that the frame 8 can move along the direction perpendicular to the optical axis of the lens 1, which is equivalent to that the frame 8 passes the conductive The support member 7 is suspended above the base 11 .
具体地，导电支撑件7的一端焊接在第一弹簧片3的第二连接部21上，以使框架8通过第一弹簧片3间接的与导电支撑件7连接。通过这种间接的连接方式，可缩小框架8的宽度，以优化整体结构的布局。Specifically, one end of the conductive support member 7 is welded to the second connection portion 21 of the first spring sheet 3 , so that the frame 8 is indirectly connected to the conductive support member 7 through the first spring sheet 3 . Through this indirect connection, the width of the frame 8 can be reduced to optimize the layout of the overall structure.
具体地，底座11上的四个角均设置有第一钢片15，其中，第一钢片15与底座11一体注塑成型，第一钢片15的一端插入底座11的边角，另一端通过焊接孔焊接在软性电路板13上，第一钢片15插入底座11边角的一端也通过焊接孔焊接在导电支撑件7的一端，以使底座11通过第一钢片15间接与导电支撑件7连接。通过在底座11上一体注塑第一钢片15，从而可以确保导电支撑件7跌落的可靠性。Specifically, the four corners of the base 11 are provided with first steel sheets 15, wherein the first steel sheets 15 are integrally injection-molded with the base 11, one end of the first steel sheet 15 is inserted into the corners of the base 11, and the other end passes through the base 11. The welding hole is welded on the flexible circuit board 13, and the end of the first steel sheet 15 inserted into the corner of the base 11 is also welded to one end of the conductive support 7 through the welding hole, so that the base 11 is indirectly connected to the conductive support through the first steel sheet 15. Piece 7 is connected. By integrally molding the first steel sheet 15 on the base 11 , the reliability of the conductive support 7 falling can be ensured.
具体地，磁钢6为四个，且分别通过打胶固定在四个第二钢片24上，且每个磁钢6在硬性电路板12上的投影部分与防抖线圈22的位置重叠。通过在框架8上先一体注塑第二钢片24，再将磁钢6通过打胶固定在第二钢片24上，可使金属与金属的粘接效果优于金属与塑胶的粘接效果，从而可提高磁钢6跌落的可靠性。Specifically, there are four magnetic steels 6 , which are respectively fixed on the four second steel sheets 24 by gluing, and the projected portion of each magnetic steel 6 on the rigid circuit board 12 overlaps with the position of the anti-shake coil 22 . By first integrally injecting the second steel sheet 24 on the frame 8, and then fixing the magnetic steel 6 on the second steel sheet 24 by gluing, the bonding effect between metal and metal can be better than the bonding effect between metal and plastic. Therefore, the reliability of the magnetic steel 6 from falling can be improved.
具体地，第二钢片24为导磁片。通过将第二钢片24设置成导磁片，可减少漏磁现象，以增强另一侧的磁场强度，从而提高驱动线圈5的灵敏度，同时，可避免磁钢6对周围器件的干扰，以提高整体结构布局的灵活性。Specifically, the second steel sheet 24 is a magnetic conductive sheet. By setting the second steel sheet 24 as a magnetic conductive sheet, the phenomenon of magnetic leakage can be reduced, so as to enhance the magnetic field strength on the other side, thereby improving the sensitivity of the driving coil 5. Improve the flexibility of the overall structure layout.
具体地，磁钢6为单极充磁的磁钢，且具有两个磁极面。驱动线圈5对应一个磁极，当驱动线圈5充电时，会在磁场中受力上升或下降，此时，弹性组件在会提供相应的回复力。Specifically, the magnetic steel 6 is a single-pole magnetized magnetic steel, and has two magnetic pole faces. The driving coil 5 corresponds to a magnetic pole. When the driving coil 5 is charged, it will be forced up or down in the magnetic field. At this time, the elastic component will provide corresponding restoring force.
具体地，防抖线圈22分为垂直于光轴方向的两个相互垂直方向的第一方向防抖线圈22、和第二方向防抖线圈22，分别为其提供第一方向和第二方向的驱动力。Specifically, the anti-shake coil 22 is divided into a first-direction anti-shake coil 22 and a second-direction anti-shake coil 22 in two mutually perpendicular directions perpendicular to the optical axis direction, which are provided with the first direction and the second direction respectively. driving force.
具体地，磁钢6设置在第二钢片24上后，与镜筒4、驱动线圈5具有一定的间隔，以供镜筒4运动。Specifically, after the magnetic steel 6 is arranged on the second steel sheet 24 , there is a certain interval with the lens barrel 4 and the driving coil 5 for the lens barrel 4 to move.
本实用新型实施例通过在底座11上采用软性电路板13与硬性电路板12的叠层设计，并在软性电路板13的两侧设置信号连接部14，从而通过软性电路板13实现了光学防抖的信号引出，避免了使用金属插脚来实现光学防抖信号引出的方式，不仅简化了整体结构、且提高了设计的灵活性。The embodiment of the present utility model adopts the laminated design of the flexible circuit board 13 and the rigid circuit board 12 on the base 11 , and sets the signal connection parts 14 on both sides of the flexible circuit board 13 , so as to realize the realization through the flexible circuit board 13 The optical anti-shake signal is extracted, and the method of using metal pins to realize the optical anti-shake signal extraction is avoided, which not only simplifies the overall structure, but also improves the flexibility of design.
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.
Claims (10)
- 一种镜头驱动装置，其特征在于，包括：A lens driving device, comprising:外壳，所述外壳包括：底座、与所述底座连接的上盖；a casing, the casing comprises: a base and an upper cover connected with the base;电路板组件，所述电路板组件包括：设置在所述底座上的软性电路板、设置在所述软性电路板上的硬性电路板，所述软性电路板的两侧设置有信号连接部；A circuit board assembly, the circuit board assembly includes: a flexible circuit board arranged on the base, a rigid circuit board arranged on the flexible circuit board, and signal connections are arranged on both sides of the flexible circuit board department;霍尔传感器，所述霍尔传感器设置在所述软性电路板上；a hall sensor, the hall sensor is arranged on the flexible circuit board;防抖线圈，防抖线圈设置所述硬性电路板上；Anti-shake coil, the anti-shake coil is arranged on the rigid circuit board;镜头组件，所述镜头组件包括用于收纳镜头的镜筒；a lens assembly including a lens barrel for accommodating a lens;驱动线圈，所述驱动线圈套设在所述镜筒上；a driving coil, which is sleeved on the lens barrel;框架，所述框架用于收纳所述镜头组件；a frame for accommodating the lens assembly;弹性组件，所述弹性组件连接所述镜筒与所述框架；an elastic component, the elastic component connects the lens barrel and the frame;导电支撑件，所述导电支撑件的两端分别连接所述底座与所述框架，以使所述框架可沿着垂直于所述镜头光轴的方向运动；a conductive support, two ends of the conductive support are respectively connected to the base and the frame, so that the frame can move in a direction perpendicular to the optical axis of the lens;磁钢，所述磁钢设置在所述框架上，所述磁钢在所述硬性电路板上的投影至少部分与所述防抖线圈重叠。Magnetic steel, the magnetic steel is arranged on the frame, and the projection of the magnetic steel on the rigid circuit board at least partially overlaps the anti-shake coil.
- 如权利要求1所述的镜头驱动装置，其特征在于，所述软性电路板的相对两侧向远离所述硬性电路板的方向弯折延伸以形成所述信号连接部。The lens driving device according to claim 1, wherein two opposite sides of the flexible circuit board are bent and extended in a direction away from the rigid circuit board to form the signal connection portion.
- 如权利要求1所述的镜头驱动装置，其特征在于，所述底座上设置有至少四个镂空位，所述硬性电路板与所述软性电路板通过所述镂空位焊接。The lens driving device according to claim 1, wherein at least four hollow positions are provided on the base, and the rigid circuit board and the flexible circuit board are welded through the hollow positions.
- 如权利要求1所述的镜头驱动装置，其特征在于，所述底座上设置有第一钢片，所述第一钢片与所述底座一体成型，所述第一钢片的两端分别连接所述导电支撑件与所述软性电路板。The lens driving device according to claim 1, wherein a first steel sheet is provided on the base, the first steel sheet is integrally formed with the base, and two ends of the first steel sheet are respectively connected the conductive support and the flexible circuit board.
- 如权利要求1所述的镜头驱动装置，其特征在于，所述霍尔传感器设置在所述软性电路板的底面，且所述底座上设置有用于避让所述霍尔传感器的避让位。The lens driving device according to claim 1, wherein the hall sensor is arranged on the bottom surface of the flexible circuit board, and an avoidance position for avoiding the hall sensor is arranged on the base.
- 如权利要求1所述的镜头驱动装置，其特征在于，所述框架包括：塑胶主体、以及一体成型在所述塑胶主体上的第二钢片。The lens driving device according to claim 1, wherein the frame comprises: a plastic body and a second steel sheet integrally formed on the plastic body.
- 如权利要求6所述的镜头驱动装置，其特征在于，所述磁钢粘接在所述第二钢片上。The lens driving device according to claim 6, wherein the magnetic steel is adhered to the second steel sheet.
- 如权利要求6所述的镜头驱动装置，其特征在于，所述第二钢片为导磁片。The lens driving device according to claim 6, wherein the second steel sheet is a magnetic conductive sheet.
- 如权利要求1所述的镜头驱动装置，其特征在于，所述防抖线圈一体成型在所述硬性电路板上。The lens driving device according to claim 1, wherein the anti-shake coil is integrally formed on the rigid circuit board.
- 如权利要求1所述的镜头驱动装置，其特征在于，所述弹性组件包括：连接所述镜筒与所述框架的上平面的第一弹簧片、以及连接所述镜筒与所述框架的下平面的第二弹簧片。The lens driving device according to claim 1, wherein the elastic component comprises: a first spring piece connecting the lens barrel and the upper plane of the frame, and a first spring piece connecting the lens barrel and the frame The second spring leaf on the lower plane.
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| CN202022428294.1U CN212112015U (en) | 2020-10-28 | 2020-10-28 | Lens driving device |
| CN202022428294.1 | 2020-10-28 |
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| CN212112015U (en) * | 2020-10-28 | 2020-12-08 | 常州市瑞泰光电有限公司 | Lens driving device |
| CN115734049A (en) * | 2021-08-27 | 2023-03-03 | 晋城三赢精密电子有限公司 | Driving assembly, camera module and electronic device |
| CN114125282B (en) * | 2021-11-16 | 2023-11-28 | 信利光电股份有限公司 | Anti-shake module and manufacturing method |
| CN114368486A (en) * | 2021-12-23 | 2022-04-19 | 贵州华烽电器有限公司 | Vibration device |
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