WO2023040871A1 - 摄像头模组用的锁止结构和摄像头模组 - Google Patents

摄像头模组用的锁止结构和摄像头模组 Download PDF

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Publication number
WO2023040871A1
WO2023040871A1 PCT/CN2022/118633 CN2022118633W WO2023040871A1 WO 2023040871 A1 WO2023040871 A1 WO 2023040871A1 CN 2022118633 W CN2022118633 W CN 2022118633W WO 2023040871 A1 WO2023040871 A1 WO 2023040871A1
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WO
WIPO (PCT)
Prior art keywords
camera module
unit
magnetic
locking structure
coil
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PCT/CN2022/118633
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English (en)
French (fr)
Inventor
罗俊
许勇
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格科微电子（上海）有限公司
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Publication of WO2023040871A1 publication Critical patent/WO2023040871A1/zh

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    • 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
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • 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

Definitions

  • the invention relates to the technical field of camera modules, in particular to a locking structure for the camera module and the camera module.
  • a camera module As an example, it generally includes a lens unit, a voice coil motor (Voice Coil Motor, VCM), an infrared cut filter, an image sensor, a flexible printed circuit board (FPC) or a printed circuit Board (Printed Circuit Board, PCB), and the connector connected to the mobile phone motherboard.
  • VCM voice coil motor
  • FPC flexible printed circuit board
  • PCB printed circuit Board
  • the voice coil motor is used to realize the autofocus function of the lens unit, and the voice coil motor usually includes magnets, coils and other structures. Electromagnetic force, the coil or magnet moves under the action of electromagnetic force, thereby driving the lens unit connected to the voice coil motor to move, adjusting the image distance and object distance of the camera module, and presenting a clear image.
  • a Hall-effect Sensor can also be installed in the voice coil motor, and the Hall-effect sensor can be used to measure the change of the magnetic field in the voice coil motor, and the position of the coil or magnet can be judged according to the change of the magnetic field, so as to realize the closed-loop of the voice coil motor control.
  • CMOS Image Sensor CIS
  • a larger CIS requires a higher lens focal length and a higher total length of the lens, but a higher lens The focal length and the total length of the lens will increase the thickness of the mobile phone.
  • the image quality of the camera cannot increase proportionally with the increase of the optical size of the CIS.
  • the effect of the macro shooting of the camera is limited.
  • Ultra-long stroke motors cannot use the structure of upper and lower shrapnel, otherwise the stroke will be limited, and a corresponding locking structure is required to fix the moving parts so that they will not protrude due to inertia or external force when they are not working, so as to move Component protection.
  • the assembly of the locking structure is very difficult and there is no locking structure that can stably protect the camera module when it is not working.
  • the problem to be solved by the present invention is to provide a locking structure for the camera module and the camera module, which simplifies the assembly of the locking structure and stably protects the camera module when it is not working.
  • the present invention provides a locking structure for a camera module, comprising: a coil unit; a magnetic unit, the magnetic unit is arranged opposite to the coil unit, and when the coil unit is energized, the coil The direction of the magnetic field generated by the unit interacts with the direction of the magnetic field of the magnetic unit to drive relative movement between the coil unit and the magnetic unit.
  • a fixing part is also included, the fixing part includes a fixing base and a sliding rail located on the fixing base, and the sliding rail extends along a moving direction parallel to the magnetic unit or the coil unit.
  • the fixed base further has a coil winding post, the slide rails are distributed on both sides of the coil winding post, and the coil unit is wound on the coil winding post.
  • At least two slide rails there are at least two slide rails, and at least one slide rail and the remaining slide rails are respectively distributed on both sides of the coil winding post.
  • the number of the coil winding legs is one or more, and the number of the coil winding legs corresponds to the number of the coil units.
  • the slide rails are located on both sides of the plurality of coil winding posts, and the multiple coil winding posts are distributed in parallel.
  • the number of the coil unit is one or more.
  • the number of the coil unit is multiple, a plurality of the coil units are distributed side by side.
  • the adjacent coil units The directions of the magnetic fields generated by the coil units are opposite to each other.
  • an elastic component is also included, and one end of the elastic component is fixedly arranged with the magnetic unit.
  • the other end of the elastic component is compressed, and the elastic component is in a compressed state.
  • the magnetic field of the coil unit disappears, and the magnetic unit is driven by the resilience of the elastic component to reset.
  • a locking slider is also included, and a sliding piece is provided between the locking slider and the slide rail.
  • the locking slider has an accommodating cavity, and the magnetic unit is detachably fixed in the accommodating cavity.
  • the locking slider has a locking tongue, and the locking tongue is located on the outer wall of the accommodating cavity.
  • the number of the lock tongues is one or more, and when the number of the lock tongues is multiple, the lock tongues are evenly distributed in the length direction of the magnetic unit.
  • the locking slider further has a connecting portion, the connecting portion is located on the side wall of the accommodating chamber, and one end of the elastic component is detachably connected to the connecting portion.
  • it also includes a housing, one side of the housing is provided with a mounting groove, the locking slider is installed in the mounting groove, and when the magnetic unit and the coil unit move relatively, the elastic member The other end is in contact with the side wall of the installation groove to be compressed.
  • the installation groove is provided with a through hole, and the lock bolt passes through the through hole.
  • it further includes: a reinforced magnetic conductive sheet adsorbed on the surface of the magnetic unit, and the reinforced magnetic conductive sheet is located between the magnetic unit and the accommodation cavity.
  • the fixing part further includes an adsorption magnetic guide sheet, which is located on the fixing base, and is distributed on two opposite sides of the fixing base with the slide rails, for absorbing the magnetic unit on the fixing base. on the fixed base.
  • an adsorption magnetic guide sheet which is located on the fixing base, and is distributed on two opposite sides of the fixing base with the slide rails, for absorbing the magnetic unit on the fixing base. on the fixed base.
  • the number of the magnetic units is one or more, and when the number of the magnetic units is more than one, the magnetic poles of two adjacent magnetic units are oppositely arranged.
  • the elastic component is a spring or an elastic component including a spring.
  • the sliding member is a metal ball or a ceramic ball.
  • the present invention also provides a camera module, including: a base; a moving unit, used to drive the camera to move along the optical axis; at least one of the above-mentioned locking structures, the coil unit and the magnetic unit Relative movement is used to lock or unlock the mobile unit.
  • locking structures there are one or more locking structures, and when there are multiple locking structures, the locking structures are evenly distributed on the periphery of the mobile unit.
  • the relative movement direction between the coil unit and the magnetic unit is perpendicular to the optical axis direction of the camera.
  • the locking structure of the present invention includes a coil unit and a magnetic unit, the magnetic unit is arranged towards the coil unit, when the coil unit is energized, the direction of the magnetic field generated by the coil unit is opposite to that of the magnetic unit, It is used to drive the relative movement between the coil unit and the magnetic unit; the locking structure of this structure is simple in structure, easy to assemble, and can test and maintain the performance of the locking structure independently, so as to ensure the locking structure with high yield.
  • the camera module of the present invention includes the above locking structure, so that even when the camera module is not working, the locking structure can still protect the camera module.
  • Fig. 1 is an exploded structure diagram of a locking structure according to an embodiment of the present invention
  • Fig. 2 is an exploded structural diagram of Fig. 1 including the magnetically conductive sheet
  • FIG. 3 is a schematic diagram of a locking structure according to an embodiment of the present invention.
  • Fig. 4 is an exploded structure diagram of a locking structure according to another embodiment of the present invention.
  • Fig. 5 is an exploded structure view of a locking structure in another embodiment of the present invention at different viewing angles;
  • FIG. 6 is a schematic cross-sectional view of the camera module in a direction parallel to the optical axis according to an embodiment of the present invention.
  • an embodiment of the present invention provides a locking structure for the camera module and the camera module.
  • the direction of the magnetic field generated by the coil unit is opposite to the direction of the magnetic field of the magnetic unit, which is used to drive the relative movement between the coil unit and the magnetic unit; the lock with this structure
  • the locking structure has a simple structure, is easy to assemble, and can independently test and maintain the performance of the locking structure, thereby ensuring a high yield rate of the locking structure.
  • Fig. 1 is an exploded structural view of a locking structure according to an embodiment of the present invention
  • Fig. 2 is an exploded structural view of Fig. 1 including an adsorption magnetic guide sheet
  • Fig. 3 is a schematic diagram of a locking structure according to an embodiment of the present invention
  • Fig. 4 is An exploded structure diagram of the locking structure of another embodiment of the present invention
  • FIG. 5 is an exploded structure diagram of the locking structure of another embodiment of the present invention at different viewing angles
  • FIG. 6 is a camera module of an embodiment of the present invention at Schematic cross-sectional view parallel to the optical axis.
  • the magnetically conductive sheet is made transparent.
  • the locking structure 100 for the camera module includes a coil unit 101 and a magnetic unit 102 .
  • the magnetic unit 102 is arranged opposite to the coil unit 101.
  • the direction of the magnetic field generated by the coil unit 101 interacts with the direction of the magnetic field of the magnetic unit 102 to drive the coil Relative movement occurs between the unit 101 and the magnetic unit 102 .
  • the camera module generally includes a base and a mobile unit mounted on the base, wherein the mobile unit moves the camera up and down along the optical axis, but when the camera module is not working, the The mobile unit will shake on the horizontal plane perpendicular to the optical axis under the impact of external force, which will easily cause damage to the camera module. Therefore, after the locking structure 100 is installed on the base, the The locking structure 100 can fix the mobile unit on a horizontal plane perpendicular to the optical axis, so as to protect the camera module.
  • the magnetic unit 102 is arranged opposite to the coil unit 101, when the coil unit 101 is energized, the direction of the magnetic field generated by the coil unit 101 is opposite to that of the magnetic unit 102, It is used to drive the relative movement between the coil unit 101 and the magnetic unit 102 so as to realize the function of locking or unlocking.
  • This locking structure 100 has a simple structure and is easy to assemble; when the camera module is not working When the camera module is working, the relative movement between the coil unit 101 and the magnetic unit 102 can be used to lock the camera module; The mutual movement between the magnetic units 102 unlocks the camera module to ensure the normal operation of the camera module.
  • FIG. 1 further includes a fixing part 103 .
  • the fixing part 103 includes a fixing base 104 and a sliding rail 105 on the fixing base 104 , and the sliding rail 105 extends along a moving direction parallel to the magnetic unit 102 or the coil unit 101 .
  • the sliding rails 105 provide space for the movement of the magnetic unit 102 or the coil unit 101 , and the number of the sliding rails 105 is at least two.
  • the fixed base 104 also has a coil winding post 106 , the slide rails 105 are distributed on both sides of the coil winding post 106 , and the coil unit 101 is wound on the coil winding post 106 .
  • the coil unit 101 is fixed, and the magnetic unit 102 moves relative to the coil unit 101 .
  • the magnetic unit 102 may be fixed, and the coil unit 101 may move relative to the magnetic unit 102 .
  • the fixing part further includes an absorbing magnetically conductive sheet 107, the absorbing magnetically conducting sheet 107 is shell-shaped, and the fixing part and the locking slider are wrapped in the absorbing magnetically conducting sheet 107 .
  • the casing of the camera module is equal to the magnetically conductive sheet 107 .
  • the magnetically conductive sheet 107 is in the shape of a sheet, and the magnetically conductive sheet 107 is located on the fixed base 103 , and the sliding rail 105 is located on the The two opposite sides of the fixed base 103 are used to attach the magnetic unit 102 to the fixed base 104 .
  • an adsorption force is generated between the magnetically conductive sheet 107 and the magnetic unit 102 , so as to facilitate the connection between the locking slider and the fixing part 103 .
  • the coil unit 101 is provided with pins, and when the pins of the coil unit 101 are connected to the outside, the coil unit 101 generates a magnetic field, and the direction of the generated magnetic field is consistent with the magnetic field.
  • the direction of the magnetic field of cell 102 is opposite.
  • At least one of the slide rails 105 and the rest of the slide rails 105 are respectively distributed on both sides of the coil winding post 106, so as to ensure that the locking slider can have a larger This can contribute to a better effect of locking or unlocking the camera module.
  • the number of the sliding rails 105 is four, and two of the sliding rails 105 and the remaining two of the sliding rails 105 are respectively distributed on both sides of the coil winding post 106 .
  • the number of the sliding rails 105 is also at least two, and at least one of the sliding rails 105 and the remaining sliding rails 105 are respectively distributed on both sides of the coil winding post 106 .
  • the number of the coil unit 101 is one.
  • FIG. 4 to FIG. 5 there are multiple coil units 101 .
  • the quantity of the coil winding post 106 corresponds to the quantity of the coil unit 101, and a plurality of the coil units 101 are arranged side by side, when the coil unit 101 is energized , the directions of the magnetic fields generated by adjacent coil units 101 are opposite.
  • the slide rails 105 are located on both sides of the plurality of coil winding posts 106 , and the multiple coil winding posts 106 are distributed in parallel.
  • an elastic component 108 is also included.
  • One end of the elastic component 108 is fixed to the magnetic unit 102 .
  • one end of the elastic member 108 is fixed to the magnetic unit 102, and when the coil unit 101 and the magnetic unit 102 move relatively, the other end of the elastic member 108 can be compressed to a Compressed state, so that when the coil unit 101 is powered off, the coil unit 101 will not generate a magnetic field. At this time, because the other end of the elastic member 108 is in a compressed state, the elastic member 108 generates The resilience of the coil unit 101 and the magnetic unit 102 can also drive the relative movement between the coil unit 101 and the magnetic unit 102.
  • the locking or unlocking effect of the camera module has a simple structure and has a wide range of applications.
  • the elastic member 108 is a spring or an elastic member including a spring.
  • the spring can be a V-shaped spring or an N-shaped spring.
  • the elastic component 108 can also be a spring-like component, as long as it can be compressed and can rebound when released.
  • FIGS. 1 to 3 further includes a locking slider 114 .
  • a sliding member 109 is disposed between the locking slider 114 and the sliding rail 105 .
  • the sliding member 109 adopts a metal ball, and the point contact between the metal ball and the slide rail 105 has a small sliding friction force, which helps to lift the locking slider 114 and the The sliding effect between the slide rails 105.
  • the sliding member 109 may also use rollers or ceramic balls.
  • the locking slider 114 has an accommodating cavity 112 , and the magnetic unit is detachably connected in the accommodating cavity 112 .
  • the locking slider 114 has a locking tongue 115 , and the locking tongue 115 is located on the outer wall of the accommodating cavity 112 .
  • the number of the lock tongue 115 is one.
  • the number of the lock tongues 115 can also be more than one, and when the number of the lock tongues 115 is more than one, the lock tongues 115 in the magnetic unit 102 are uniformly distributed along the length direction.
  • the locking slider 114 also has a connecting portion 111 , the connecting portion 111 is located on the side wall of the accommodating cavity 112 , and one end of the elastic member 108 is detachably connected to the on the connecting portion 111 .
  • the connecting portion 111 may be in the form of bolts or screw holes.
  • the locking slider 114 may not be provided with the connecting portion, and one end of the elastic member 108 is glued to the side wall of the locking slider 114 Just connect them together.
  • FIGS. 1 to 3 further includes a housing 116 .
  • One side of the housing 116 is provided with a mounting groove 118, the locking slider 114 is mounted in the mounting groove 118, when the coil unit 101 and the magnetic unit 102 move relatively, the elastic member 108 The other end is in contact with the sidewall of the installation groove 118 to be compressed.
  • the installation groove 118 is provided with a through hole 117 , and the lock tongue 115 passes through the through hole 117 .
  • a reinforced magnetic conductive sheet 110 adsorbed on the surface of the magnetic unit 102, and the reinforced magnetic conductive sheet 110 is located between the magnetic unit 102 and the accommodating cavity 112.
  • the reinforced magnetic conductive sheet 110 is used to increase the magnetic properties of the magnetic unit 102 .
  • the number of the magnetic unit 102 is one.
  • the number of the magnetic units 102 is multiple, and when the number of the magnetic units 102 is multiple, the magnetic poles of two adjacent magnetic units 102 are opposite. set up.
  • the plurality of magnetic units 102 are implemented by a magnet using multi-stage magnetization.
  • the present invention also provides a camera module, including a base 201; a moving unit 202 for driving the camera to move along the optical axis; a locking structure 100, the coil unit 101 and the magnetic Relative movement between the units 102 is used to lock or unlock the mobile unit 202 .
  • the locking structure 100 can be used as an independent component, so that when using the camera module, the locking structure can be tested independently, thereby helping to improve the yield rate of the product At the same time, due to the existence of the locking structure 100, when the camera module is not working, it can play a role in stabilizing the camera, preventing damage to the camera due to external impact, thereby improving the product quality of the camera module.
  • the locking structure may not include a housing, and in such an embodiment, the locking structure is directly assembled into the housing of the camera module.
  • the locking structures 100 there are multiple locking structures 100.
  • the locking structures 100 are evenly distributed on the outer periphery of the mobile unit.
  • the two locking structures 100 are symmetrically distributed on opposite sides of the mobile unit.
  • the relative moving direction between the coil unit 101 and the magnetic unit 102 is perpendicular to the optical axis direction of the camera, so that the moving unit can be fixed in the direction perpendicular to the optical axis , reducing the damage to the camera caused by the impact of external force, and improving the protection effect on the camera module.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)

Abstract

一种摄像头模组用的锁止结构和摄像头模组，其中，锁止结构（100）包括：线圈单元（101）；磁性单元（102），磁性单元与线圈单元相对设置，当线圈单元通电时，线圈单元产生的磁场方向与磁性单元的磁场方向相互作用，用于驱使线圈单元与磁性单元发生相对的移动；这种结构的锁止结构结构简单，易于装配且可以单独对锁止结构的性能进行测试、维修，从而保证锁止结构具有较高的良率。

Description

摄像头模组用的锁止结构和摄像头模组
本申请要求2021年9月18日提交中国专利局、申请号为202111103895.8、发明名称为“摄像头模组用的锁止结构和摄像头模组”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及摄像头模组技术领域，尤其涉及一种摄像头模组用的锁止结构和摄像头模组。
背景技术
目前绝大部分移动设备如手机、平板电脑，都会搭载摄像头模组，通过摄像头模组实现光信号与电信号之间的转换，记录和保存图像信息，从而实现拍照与摄影功能。与传统摄像系统相比，手机摄像模组(Cell phone Camera Module，CCM)因其小型化、低功耗、低成本及高影像品质等优点而广泛地应用于各种新一代便携式摄像设备中。以摄像模组的结构为例，一般包括镜头单元、音圈马达(Voice Coil Motor，VCM)、红外线截止滤光片、图像传感器、软性电路板(Flexible Printed Circuit board，FPC)或印制电路板(Printed Circuit Board，PCB)，以及与手机主板连接的连接器。其中，音圈马达用于实现镜头单元的自动对焦功能，且音圈马达通常包括磁体、线圈等结构，摄像模组工作过程中，首先给线圈通电流，通电线圈在磁场中切割磁感线产生电磁力，线圈或者磁体在电磁力的作用下移动，从而带动与音圈马达连接的镜头单元移动，调整摄像模组的像距与物距，呈现清晰的图像。通常还可以在音圈马达中设置霍尔传感器(Hall-effect Sensor)，利用霍尔传感器测定音圈马达中磁场的变化，根据磁场的变化判断线圈或者磁铁的位置，从而实现音圈马达的闭环控制。
随着智能手机行业的快速发展，人们对手机摄像使用功能的要求 也在逐步提高。对焦范围的不断增加使得音圈马达行程也不断增加，但受限于手机厚度尺寸并且后壳带有保护玻璃，马达的行程不能无节制的增加，同时近期手机行业为了达到更好的画质，以及给客户提供更佳的拍照体验，终端往往会采用更大光学尺寸的感光芯片(CMOS Image Sensor，CIS)，更大CIS需要更高的镜头焦距和更高的镜头总长，但是更高的镜头焦距和镜头总长会导致手机厚度的增加，所以由于手机厚度的限制，摄像头的画质无法随CIS光学尺寸的增加等比例增加，同时摄像头的微距拍摄的效果受到一定的限制。超长行程马达不能使用上下弹片的结构，否则行程会受到限制，并且需要相应的锁止结构来固定移动部件，使其在不工作的时候不会因为惯性或者外力而伸出，从而起到移动部件的保护作用。
目前锁止结构的装配非常困难且没有一种锁止结构能在摄像头模组不工作时稳定的对其进行保护。
综上，提供一种便于装配且能够在摄像头模组不工作时稳定的对其进行保护的锁止结构，是目前超长行程马达的摄像头模组亟待解决的问题之一。
发明内容
本发明解决的问题是提供一种摄像头模组用的锁止结构和摄像头模组，简化锁止结构的装配且在摄像头模组不工作时稳定的对其进行保护。
为解决上述问题，本发明提供一种摄像头模组用的锁止结构，包括：线圈单元；磁性单元，所述磁性单元与所述线圈单元相对设置，当所述线圈单元通电时，所述线圈单元产生的磁场方向与所述磁性单元的磁场方向相互作用，用于驱使所述线圈单元与所述磁性单元之间发生相对的移动。
可选的，还包括固定部，所述固定部包括固定底座和位于所述固 定底座上的滑轨，所述滑轨沿着平行于所述磁性单元或者所述线圈单元的移动方向延伸。
可选的，所述固定底座还具有线圈绕柱，所述滑轨分布在所述线圈绕柱的两侧，所述线圈单元绕在所述线圈绕柱上。
可选的，所述滑轨的数量至少为两个，至少一个所述滑轨与剩余所述滑轨分别分布在所述线圈绕柱的两侧。
可选的，所述线圈绕柱的数量为一个或者多个，所述线圈绕柱的数量与所述线圈单元的数量相对应。
可选的，当所述线圈绕柱的数量为多个时，所述滑轨位于多个所述线圈绕柱的两侧，多个所述线圈绕柱之间平行分布。
可选的，所述线圈单元的数量为一个或者多个，当所述线圈单元的数量为多个时，多个所述线圈单元并排分布，当所述线圈单元通电时，相邻的所述线圈单元产生的磁场方向彼此相反。
可选的，还包括弹性部件，所述弹性部件的一端与所述磁性单元固定设置。
可选的，当所述线圈单元通电时，所述线圈单元与所述磁性单元之间发生相对移动时，所述弹性部件的另一端被压缩，所述弹性部件处于被压缩状态。
可选的，当所述线圈单元断电时，所述线圈单元的磁场消失，所述磁性单元受所述弹性部件的回弹力驱动而复位。
可选的，还包括锁止滑块，所述锁止滑块与所述滑轨之间设有滑动件。
可选的，所述锁止滑块上具有容纳腔，所述磁性单元可拆卸地固定在所述容纳腔内。
可选的，所述锁止滑块上具有锁舌，所述锁舌位于所述容纳腔的 外壁上。
可选的，所述锁舌的数量为一个或者多个，当所述锁舌的数量为多个时，所述锁舌在所述磁性单元的长度方向上均匀分布。
可选的，所述锁止滑块上还具有连接部，所述连接部位于所述容纳腔的侧壁上，所述弹性部件的一端可拆卸连接在所述连接部上。
可选的，还包括外壳，所述外壳的一侧设有安装槽，所述锁止滑块安装于所述安装槽内，所述磁性单元与所述线圈单元相对移动时，所述弹性部件的另一端与所述安装槽的侧壁抵触接触而被压缩。
可选的，所述安装槽上设有通孔，所述锁舌穿过所述通孔。
可选的，还包括：吸附在所述磁性单元表面上的加强导磁片，且所述加强导磁片位于所述磁性单元与所述容纳腔之间。
可选的，所述固定部还包括吸附导磁片，位于所述固定底座上，与所述滑轨分布位于所述固定底座的相对两个侧面上，用于将所述磁性单元吸附在所述固定底座上。
可选的，所述磁性单元的数量为一个或者多个，当所述磁性单元的数量为多个时，相邻两个所述磁性单元的磁极相反设置。
可选的，所述弹性部件为弹簧或者包含弹簧的弹性部件。
可选的，所述滑动件为金属球或者陶瓷球。
相应的，本发明还提供一种摄像头模组，包括：底座；移动单元，用于驱动摄像头沿光轴方向运动；至少一个上述的锁止结构，所述线圈单元与所述磁性单元之间的相对移动用于锁止或解锁所述移动单元。
可选的，所述锁止结构的数量为一个或者多个，所述锁止结构为多个时，所述锁止结构均匀地分布在所述移动单元的外周。
可选的，所述线圈单元与所述磁性单元之间的相对移动方向垂直 于所述摄像头的光轴方向。
与现有技术相比，本发明的技术方案具有以下优点：
本发明的锁止结构包括线圈单元和磁性单元，所述磁性单元朝向所述线圈单元设置，当所述线圈单元通电时，所述线圈单元产生的磁场方向与所述磁性单元的磁场方向相反，用于驱使所述线圈单元与所述磁性单元之间发生相对的移动；这种结构的锁止结构具有结构简单，易于装配且可以单独对锁止结构的性能进行测试、维修，从而保证锁止结构具有较高的良率。
本发明的摄像头模组包括上述的锁止结构，这样即使在摄像头模组不工作的时候，所述锁止结构仍然能够对摄像头模组起到保护作用。
附图说明
图1是本发明一实施例的锁止结构的爆炸结构图；
图2是图1包含吸附导磁片的爆炸结构图；
图3为本发明一实施例的锁止结构的示意图；
图4是本发明另一实施例的锁止结构的爆炸结构图；
图5是本发明另一实施例的锁止结构在不同观察角度的爆炸结构图；
图6是本发明一实施例的摄像头模组在平行于光轴方向上的截面示意图。
具体实施方式
如背景技术所述，提供一种便于装配且能够在摄像头模组不工作时稳定的对其进行保护的锁止结构，是目前摄像头模组领域亟待解决的问题之一。
为了解决锁止结构装配以及实现在摄像头模组不工作时对其进 行保护的问题，本发明实施例提供一种摄像头模组用的锁止结构以及摄像头模组。当所述线圈单元通电时，所述线圈单元产生的磁场方向与所述磁性单元的磁场方向相反，用于驱使所述线圈单元与所述磁性单元之间发生相对的移动；这种结构的锁止结构具有结构简单，易于装配且可以单独对锁止结构的性能进行测试、维修，从而保证锁止结构具有较高的良率。
为使本发明的上述目的、特征和优点能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
图1是本发明一实施例的锁止结构的爆炸结构图；图2是图1包含吸附导磁片的爆炸结构图；图3为本发明一实施例的锁止结构的示意图；图4是本发明另一实施例的锁止结构的爆炸结构图；图5是本发明另一实施例的锁止结构在不同观察角度的爆炸结构图；图6是本发明一实施例的摄像头模组在平行于光轴方向上的截面示意图。
为了便于观察图3内部的结构，将所述吸附导磁片透明化。
请参考图1至图2，摄像头模组用的锁止结构100，包括线圈单元101和磁性单元102。
所述磁性单元102与所述线圈单元101相对设置，当所述线圈单元101通电时，所述线圈单元101产生的磁场方向与所述磁性单元102的磁场方向相互作用，用于驱使所述线圈单元101与所述磁性单元102之间发生相对的移动。
在本实施例中，所述摄像头模组一般都会包括底座和安装在底座上的移动单元，其中所述移动单元带着摄像头沿着光轴方向上下移动，但是当摄像头模组不工作时，所述移动单元会在外力的冲击下而在垂直于光轴的水平面上发生晃动，这就容易对所述摄像头模组造成损伤，所以将所述锁止结构100安装在所述底座后，所述锁止结构100能够将所述移动单元在垂直于光轴的水平面上进行固定，从而起到保护所述摄像头模组的作用。
在本实施例中，由于所述磁性单元102与所述线圈单元101相对设置，当所述线圈单元101通电时，所述线圈单元101产生的磁场方向与所述磁性单元102的磁场方向相反，用于驱使所述线圈单元101与所述磁性单元102之间发生相对的移动从而实现锁止或解锁的功能，这种锁止结构100的结构简单，易于装配；在所述摄像头模组不工作时，利用所述线圈单元101与所述磁性单元102之间的相对移动实现对所述摄像头模组的锁止作用；当所述摄像头模组工作的时候，又能够利用所述线圈单元101与所述磁性单元102之间的相互移动而解锁所述摄像头模组，而保证所述摄像头模组的正常工作。
请继续参考图1，还包括固定部103。
所述固定部103包括固定底座104和位于所述固定底座104上的滑轨105，所述滑轨105沿着平行于所述磁性单元102或者所述线圈单元101的移动方向延伸。
在本实施例中，所述滑轨105为所述磁性单元102或者所述线圈单元101的移动提供空间，所述滑轨105的数量至少为两个。
在本实施例中，所述固定底座104还具有线圈绕柱106，所述滑轨105分布在所述线圈绕柱106的两侧，所述线圈单元101绕在所述线圈绕柱106上。
在本实施例中，所述线圈单元101固定，所述磁性单元102相对于所述线圈单元101移动。
在其他实施例中，还可所述磁性单元102固定，所述线圈单元101相对于所述磁性单元102移动。
在本实施例中，所述固定部还包括吸附导磁片107，所述吸附导磁片107为壳状，将所述固定部以及锁止滑块都包裹在所述吸附导磁片107内。
在一些实施例中，将所述摄像头模组的壳体等同于所述吸附导磁片107。
在其他实施例中，请参考图4至图5，所述吸附导磁片107为片状，所述吸附导磁片107位于所述固定底座103上，与所述滑轨105分别位于所述固定底座103的相对两个侧面上，用于将所述磁性单元102吸附在所述固定底座104上。
在本实施例中，所述吸附导磁片107与所述磁性单元102之间产生吸附力，从而便于将所述锁止滑块与所述固定部103之间形成连接。
在本实施例中，所述线圈单元101上设有引脚，当所述线圈单元101的引脚与外部接电时，所述线圈单元101产生磁场，所产生的磁场的方向与所述磁性单元102的磁场方向是相反的。
在本实施例中，至少一个所述滑轨105与剩余所述滑轨105分别分布在所述线圈绕柱106的两侧，这样可以保证锁止滑块在所述固定底座上能够具有较大的行程，这样能够有助于更好的对所述摄像头模组进行锁止或者解锁的效果。
在本实施例中，所述滑轨105的数量为四个，两个所述滑轨105与剩余的两个所述滑轨105分别分布在所述线圈绕柱106的两侧。
在其他实施例中，所述滑轨105的数量也要至少为两个，至少一个所述滑轨105与剩余所述滑轨105分别分布在所述线圈绕柱106的两侧。
在本实施例中，所述线圈单元101的数量为一个。
在其他实施例中，请参考图4至图5，所述线圈单元101的数量为多个。
当所述线圈单元101的数量为多个时，所述线圈绕柱106的数量与所述线圈单元101的数量相对应，多个所述线圈单元101并排分布，当所述线圈单元101通电时，相邻的所述线圈单元101产生的磁场方向相反。
当所述线圈绕柱106的数量为多个时，所述滑轨105位于多个所述线圈绕柱106的两侧，多个所述线圈绕柱106之间平行分布。
请参考图1至图2，还包括弹性部件108。
所述弹性部件108的一端与所述磁性单元102固定设置。
在本实施例中，当所述线圈单元101通电时，所述线圈单元101与所述磁性单元102之间发生相对移动时，所述弹性部件108的另一端被压缩，所述弹性部件108处于被压缩状态；当所述线圈单元101断电时，所述线圈单元101的磁场消失，所述磁性单元102受所述弹性部件108的回弹力驱动而复位。
在本实施例中，所述弹性部件108的一端与所述磁性单元102固定设置，在所述线圈单元101与所述磁性单元102相对移动时，所述弹性部件108的另一端可以被压缩处于被压缩态，这样当所述线圈单元101断电时，所述线圈单元101就不会产生磁场，此时由于所述弹性部件108的另一端处于被压缩的状态，这样所述弹性部件108产生的回弹力同样能够带动所述线圈单元101与所述磁性单元102之间的相对移动，利用所述线圈单元101和所述磁性单元102在两种不同作用力的作用下发生的相对移动而实现对所述摄像头模组的锁止或者解锁效果，结构简单，具有较广泛的使用范围。
在本实施例中，所述弹性部件108为弹簧或者包括弹簧的弹性部件。所述弹簧可以为V字形弹簧或N字形。
在其他实施例中，所述弹性部件108还可采用类似弹簧的部件，只要能够被压缩同时放开时能够回弹的部件都可以。
请继续参考图1至图3，还包括锁止滑块114。
所述锁止滑块114与所述滑轨105之间设有滑动件109。
在本实施例中，所述滑动件109采用金属珠，所述金属珠与所述滑轨105之间是点接触，滑动摩擦力小，有助于提升所述锁止滑块 114与所述滑轨105之间的滑动效果。
在其他实施例中，所述滑动件109还可采用滚柱或陶瓷球。
在本实施例中，所述锁止滑块114上具有容纳腔112，所述磁性单元可拆卸连接在所述容纳腔112内。
在本实施例中，所述锁止滑块114上具有锁舌115，所述锁舌115位于所述容纳腔112的外壁上。
在本实施例中，所述锁舌115的数量为一个。
在其他实施例中，请参考图4至图5，所述锁舌115的数量还可为多个，当所述锁舌115的数量为多个时，所述锁舌115在所述磁性单元102的长度方向上均匀分布。
请继续参考图1至图3，所述锁止滑块114上还具有连接部111，所述连接部111位于所述容纳腔112的侧壁上，所述弹性部件108的一端可拆卸连接在所述连接部111上。所述连接部111可以为螺栓或者螺孔等形式。
在其他实施例中，请参考图4至图5，所述锁止滑块114上还可不设有所述连接部，所述弹性部件108的一端与所述锁止滑块114的侧壁粘接在一起即可。
请继续参考图1至图3，还包括外壳116。
所述外壳116的一侧设有安装槽118，所述锁止滑块114安装于所述安装槽118内，所述线圈单元101与所述磁性单元102相对移动时，所述弹性部件108的另一端与所述安装槽118的侧壁抵触接触而被压缩。
请继续参考图1至图3，所述安装槽118上设有通孔117，所述锁舌115穿过所述通孔117。
还包括：吸附在所述磁性单元102表面上的加强导磁片110，且 所述加强导磁片110位于所述磁性单元102与所述容纳腔112之间。
在本实施例中，所述加强导磁片110用于增加所述磁性单元102的磁性。
在本实施例中，请继续参考图1至图3，所述磁性单元102的数量为一个。
在其他实施例中，请参考图4至图5，所述磁性单元102的数量为多个，当所述磁性单元102的数量为多个时，相邻两个所述磁性单元102的磁极相反设置。在一种实施中，所述多个磁性单元102是由一块磁体采用多级充磁实现。
相应的，请参考图6，本发明还提供一种摄像头模组，包括底座201；移动单元202，用于驱动摄像头沿光轴方向运动；锁止结构100，所述线圈单元101与所述磁性单元102之间的相对移动用于锁止或解锁所述移动单元202。
在本实施例中，这种锁止结构100能够作为独立的部件使用，这样在使用所述摄像头模组时，能够单独的对所述锁止结构进行测试，从而有助于提高产品的良率；同时由于所述锁止结构100的存在，能够在所述摄像头模组不工作时，能够起到稳固摄像头的作用，防止由于外力冲击对摄像头造成的损伤，从而提高摄像头模组的产品质量。在其它一些实施例中，所述锁止结构也可以不包括外壳，这样的实施例中，所述锁止结构就直接组装入摄像头模组的壳体内。
在本实施例中，所述锁止结构100的数量为多个，所述锁止结构100为多个时，所述锁止结构100均匀地分布在所述移动单元的外周，具体的，所述锁止结构的数量为两个，两个所述锁止结构100对称地分布在所述移动单元的相对两侧。
在本实施例中，所述线圈单元101与所述磁性单元102之间的相对移动方向垂直于所述摄像头的光轴方向，这样才能在垂直于光轴的方向上将所述移动单元进行固定，减少由于外力的冲击对所述摄像头 造成的损伤，提高对所述摄像头模组的保护作用。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (25)

  1. 一种摄像头模组用的锁止结构，其特征在于，包括：
    线圈单元；
    磁性单元，所述磁性单元与所述线圈单元相对设置，当所述线圈单元通电时，所述线圈单元产生的磁场方向与所述磁性单元的磁场方向相互作用，用于驱使所述线圈单元与所述磁性单元之间发生相对的移动。
  2. 如权利要求1所述的摄像头模组用的锁止结构，其特征在于，还包括固定部，所述固定部包括固定底座和位于所述固定底座上的滑轨，所述滑轨沿着平行于所述磁性单元或者所述线圈单元的移动方向延伸。
  3. 如权利要求2所述的摄像头模组用的锁止结构，其特征在于，所述固定底座还具有线圈绕柱，所述滑轨分布在所述线圈绕柱的两侧，所述线圈单元绕在所述线圈绕柱上。
  4. 如权利要求2所述的摄像头模组用的锁止结构，其特征在于，所述滑轨的数量至少为两个，至少一个所述滑轨与剩余所述滑轨分别分布在所述线圈绕柱的两侧。
  5. 如权利要求2所述的摄像头模组用的锁止结构，其特征在于，所述线圈绕柱的数量为一个或者多个，所述线圈绕柱的数量与所述线圈单元的数量相对应。
  6. 如权利要求5所述的摄像头模组用的锁止结构，其特征在于，当所述线圈绕柱的数量为多个时，所述滑轨位于多个所述线圈绕柱的两侧，多个所述线圈绕柱之间平行分布。
  7. 如权利要求1所述的摄像头模组用的锁止结构，其特征在于，所述线圈单元的数量为一个或者多个，当所述线圈单元的数量为多个时，多个所述线圈单元并排分布，当所述线圈单元通电时，相 邻的所述线圈单元产生的磁场方向彼此相反。
  8. 如权利要求2所述的摄像头模组用的锁止结构，其特征在于，还包括弹性部件，所述弹性部件的一端与所述磁性单元固定设置。
  9. 如权利要求8所述的摄像头模组用的锁止结构，其特征在于，当所述线圈单元通电时，所述线圈单元与所述磁性单元之间发生相对移动时，所述弹性部件的另一端被压缩，所述弹性部件处于被压缩状态。
  10. 如权利要求9所述的摄像头模组用的锁止结构，其特征在于，当所述线圈单元断电时，所述线圈单元的磁场消失，所述磁性单元受所述弹性部件的回弹力驱动而复位。
  11. 如权利要求8所述的摄像头模组用的锁止结构，其特征在于，还包括锁止滑块，所述锁止滑块与所述滑轨之间设有滑动件。
  12. 如权利要求11所述的摄像头模组用的锁止结构，其特征在于，所述锁止滑块上具有容纳腔，所述磁性单元可拆卸地固定在所述容纳腔内。
  13. 如权利要求12所述的摄像头模组用的锁止结构，其特征在于，所述锁止滑块上具有锁舌，所述锁舌位于所述容纳腔的外壁上。
  14. 如权利要求13所述的摄像头模组用的锁止结构，其特征在于，所述锁舌的数量为一个或者多个，当所述锁舌的数量为多个时，所述锁舌在所述磁性单元的长度方向上均匀分布。
  15. 如权利要求12所述的摄像头模组用的锁止结构，其特征在于，所述锁止滑块上还具有连接部，所述连接部位于所述容纳腔的侧壁上，所述弹性部件的一端可拆卸连接在所述连接部上。
  16. 如权利要求13所述的摄像头模组用的锁止结构，其特征在于，还包括外壳，所述外壳的一侧设有安装槽，所述锁止滑块安装于所述安装槽内，所述磁性单元与所述线圈单元相对移动时，所述弹 性部件的另一端与所述安装槽的侧壁抵触接触而被压缩。
  17. 如权利要求16所述的摄像头模组用的锁止结构，其特征在于，所述安装槽上设有通孔，所述锁舌穿过所述通孔。
  18. 如权利要求12所述的摄像头模组用的锁止结构，其特征在于，还包括：吸附在所述磁性单元表面上的加强导磁片，且所述加强导磁片位于所述磁性单元与所述容纳腔之间。
  19. 如权利要求2所述的摄像头模组用的锁止结构，其特征在于，所述固定部还包括吸附导磁片，位于所述固定底座上，与所述滑轨分布位于所述固定底座的相对两个侧面上，用于将所述磁性单元吸附在所述固定底座上。
  20. 如权利要求1所述的摄像头模组用的锁止结构，其特征在于，所述磁性单元的数量为一个或者多个，当所述磁性单元的数量为多个时，相邻两个所述磁性单元的磁极相反设置。
  21. 如权利要求8所述的摄像头模组用的锁止结构，其特征在于，所述弹性部件为弹簧或者包含弹簧的弹性部件。
  22. 如权利要求11所述的摄像头模组用的锁止结构，其特征在于，所述滑动件为金属球或者陶瓷球。
  23. 一种摄像头模组，其特征在于，包括：
    底座；
    移动单元，用于驱动摄像头沿光轴方向运动；
    至少一个如权利要求1所述的锁止结构，所述线圈单元与所述磁性单元之间的相对移动用于锁止或解锁所述移动单元。
  24. 如权利要求23所述的摄像头模组，其特征在于，所述锁止结构的数量为一个或者多个，所述锁止结构为多个时，所述锁止结构均匀地分布在所述移动单元的外周。
  25. 如权利要求23所述的摄像头模组，其特征在于，所述线圈单元与所述磁性单元之间的相对移动方向垂直于所述摄像头的光轴方向。
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