WO2022135255A1 - 摄像头模组和电子设备 - Google Patents

摄像头模组和电子设备 Download PDF

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Publication number
WO2022135255A1
WO2022135255A1 PCT/CN2021/138664 CN2021138664W WO2022135255A1 WO 2022135255 A1 WO2022135255 A1 WO 2022135255A1 CN 2021138664 W CN2021138664 W CN 2021138664W WO 2022135255 A1 WO2022135255 A1 WO 2022135255A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
assembly
lens assembly
camera module
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/138664
Other languages
English (en)
French (fr)
Inventor
李华聪
何云发
杨泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to ES21909251T priority Critical patent/ES3047658T3/es
Priority to EP21909251.7A priority patent/EP4270920B1/en
Priority to JP2023538071A priority patent/JP7785083B2/ja
Priority to KR1020237024694A priority patent/KR20230118688A/ko
Publication of WO2022135255A1 publication Critical patent/WO2022135255A1/zh
Priority to US18/338,590 priority patent/US12470789B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H04N23/685—Vibration or motion blur correction performed by mechanical compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • 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
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • 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
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Definitions

  • the application belongs to the technical field of cameras, and in particular relates to a camera module and an electronic device.
  • the present application aims to provide a camera module and an electronic device to at least solve one of the problems discovered by the inventor.
  • an embodiment of the present application proposes a camera module, comprising: a casing, wherein an accommodation cavity is arranged in the casing; a lens assembly, the lens assembly is movably disposed in the accommodation cavity; a first A drive assembly, the first drive assembly is connected with the lens assembly to drive the lens assembly to move, at least a part of the first drive assembly is arranged on the inner side wall of the housing; a circuit board, the circuit board is connected with The lens assembly is connected; a second drive assembly is arranged on the housing, and at least a part of the second drive assembly is connected with the circuit board to drive the circuit board to move.
  • an embodiment of the present application provides an electronic device, including the above-mentioned camera module.
  • the lens assembly and the circuit board are driven by the first drive assembly and the second drive assembly, respectively, so that the circuit board and the lens assembly move in the same direction, which can prevent the lens assembly from pulling the circuit board during the movement process. This results in a longer moving distance and a larger rotation angle of the lens assembly.
  • FIG. 1 is a cross-sectional view of an anti-shake gimbal of the related art
  • FIG. 2 is a top view of an embodiment of a camera module according to the present application.
  • FIG. 3 is a partial exploded view of an embodiment of a camera module according to the present application.
  • Fig. 4 is a sectional view along line A-A in Fig. 2;
  • Fig. 5 is a sectional view along line B-B in Fig. 2;
  • FIG. 6 is a schematic diagram of the stress on the circuit board of the camera module according to the embodiment of the present application.
  • Housing 10 accommodating cavity 11; bracket 12; cover plate 13; cross support shaft 14;
  • the first drive assembly 30 the first magnetic member 31; the first coil 32;
  • circuit board 40 first board body 41; second board body 42;
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • FIG. 1 shows an anti-shake gimbal in the prior art.
  • the flexible circuit board 1 in the existing anti-shake gimbal enters a closed flexible circuit board box 3 after the cable exits from the head 2 side of the camera module, and an S-shaped winding is used in the flexible circuit board box 3 In this way, after five layers of winding, it is connected to the main board from the flexible circuit board box 3. In this way, when the camera module is actuated, the flexible circuit board 1 has space to expand and contract in the flexible circuit board box 3, thereby reducing the resistance, but this solution still cannot effectively avoid the pulling of the flexible circuit board 1 on the gimbal, and the optical anti-shake performance will be restricted.
  • the camera module 100 includes a housing 10 , a lens assembly 20 , a first drive assembly 30 , a circuit board 40 and a second drive assembly 50 .
  • the housing 10 is provided with an accommodating cavity 11, the lens assembly 20 is movably arranged in the accommodating cavity 11, the first driving assembly 30 is connected with the lens assembly 20 to drive the lens assembly 20 to move, and the first driving assembly 30 is At least a part of the second drive assembly 50 is disposed in the housing 10 , the circuit board 40 is connected to the lens assembly 20 , and at least a part of the second drive assembly 50 is connected to the circuit board 40 to drive the circuit board 40 to move.
  • the camera module 100 is mainly composed of the casing 10 , the lens assembly 20 mounted on the casing 10 , the first driving assembly 30 for driving the movement of the lens assembly 20 , and the circuit board 40 electrically connected to the lens assembly 20 . and a second drive assembly 50 that drives the circuit board 40 to move.
  • the casing 10 is a basic component of the camera module 100 , and the casing 10 can provide an installation basis for other components of the camera module 100 .
  • the housing 10 has an accommodating cavity 11 , and the accommodating cavity 11 can play a role of accommodating the lens assembly 20 .
  • the camera module 100 may be tilted due to shaking, which will eventually affect the shooting quality.
  • the lens assembly 20 is movable relative to the casing 10 , and the first driving assembly 30 drives the lens assembly 20 to move, so as to compensate for the tilt caused by the shaking of the camera module 100 .
  • 100 implements effective stabilization.
  • the second drive assembly 50 can drive the circuit board 40 to move in the same direction, which can reduce the pulling problem caused by the lens assembly 20 to the circuit board 40 .
  • the movement types of the lens assembly 20 include movement and rotation types, which are not limited herein.
  • the first driving assembly 30 when the first driving assembly 30 is installed, the first driving assembly 30 may be connected to the lens assembly 20 in an existing manner. For example, as shown in FIGS. 2 to 5 , a part of the first driving assembly 30 is connected to the housing 10 , and another part of the first driving assembly 30 is connected to the lens assembly 20 .
  • a part of the second drive assembly 50 can be installed in the accommodating cavity 11 and connected to the circuit board 40, or the second drive assembly 50 can be installed as a whole outside the accommodating cavity 11 and connected to the circuit board 40 connections.
  • first drive assembly 30 and the second drive assembly 50 include but are not limited to motors, and may also be other drive structures capable of realizing the movement of the lens assembly 20 and the circuit board 40, such as a drive motor, including a drive motor and a drive motor matched with the drive motor. Transmission mechanism, etc.
  • the first drive assembly 30 and the second drive assembly 50 are used to drive the lens assembly 20 and the circuit board 40 respectively, so that the circuit board 40 and the lens assembly 20 move in the same direction, which can avoid The lens assembly 20 pulls the circuit board 40 during the movement process, so that the lens assembly 20 has a longer moving distance and a larger rotation angle.
  • the second driving assembly 50 drives the circuit board 40 and the first driving assembly 30 to drive the lens assembly 20 to move synchronously, which can further avoid relative movement between the circuit board 40 and the lens assembly 20, thereby further improving the Anti-pull effect for circuit board 40 .
  • the first drive assembly 30 includes a first magnetic member 31 and a first coil 32, one of the first magnetic member 31 and the first coil 32 is connected to the housing 10, and the first magnetic member The other one of the first coil 31 and the first coil 32 is connected to the lens assembly 20 , and the first coil 32 can move relative to the first magnetic member 31 to drive the lens assembly 20 after being electrified.
  • the first magnetic member 31 may be disposed on the housing 10, and the first coil 32 may be disposed on the lens assembly 20; or, the first magnetic member 31 may be disposed on the lens assembly 20, and the first coil 32 may be disposed on the casing body 10.
  • the first magnetic member 31 is disposed on the outer wall of the lens assembly 20
  • the first coil 32 is disposed on the inner wall of the housing 10 corresponding to the position of the first magnetic member 31 .
  • the housing 10 includes a bracket 12 and a cover plate 13 , the bracket 12 is provided with an accommodating cavity 11 with a first side opening, and the lens assembly 20 can be arranged in the accommodating cavity 11 and is movable relative to the bracket 12 ,
  • the circuit board 40 may be connected with the lens assembly 20 through the opening.
  • the cover plate 13 is disposed on the first side of the bracket 12
  • the second driving assembly 50 is disposed on the cover plate 13 .
  • a part of the second driving assembly 50 may be disposed on the cover plate 13
  • another part of the second driving assembly 50 may be disposed in the circuit board 40 and movable relative to the cover plate 13 .
  • the circuit board 40 includes a first board body 41 and a second board body 42 , the first board body 41 is arranged between the lens assembly 20 and the cover plate 13 , and the first side of the first board body 41 is connected to the lens assembly 20 , and moves synchronously with the lens assembly 20 , the second plate body 42 is electrically connected with the first plate body 41 , the second drive assembly 50 is arranged between the second plate body 42 and the cover plate 13 , and the second drive assembly 50 is connected to the second plate body 41 .
  • the plate body 42 is connected to drive the second plate body 42 to move.
  • the second board body 42 may be a flexible circuit board, a wire, or the like.
  • the camera module 100 is assembled in the up-down direction, the direction adjacent to the observer is the front side, and the direction facing away from the observer is the rear side.
  • a receiving cavity 11 is defined in the bracket 12 , and an opening is opened on the lower side of the bracket 12 .
  • a circuit board 40 is provided on the front side of the bracket 12 , and a cover plate 13 is provided below the bracket 12 and the circuit board 40 .
  • the first plate body 41 is located at the rear side of the second plate body 42 and below the lens assembly 20 . During assembly, the first plate body 41 is inserted between the bracket 12 and the cover plate 13 to realize the electrical connection between the first plate body 41 and the lens assembly 20 .
  • the lower end surface of the second plate body 42 is connected with the second driving assembly 50 , so that the second plate body 42 and the lens assembly 20 move in the same direction. Dividing the circuit board 40 into the first board body 41 and the second board body 42 can facilitate the connection between the circuit board 40 and the lens assembly 20 and the lens on the premise of realizing the connection between the circuit board 40 and the second driving assembly 50 .
  • Component 20 activity is provided on the front side of the bracket 12 , and a cover plate 13 is
  • the first board body 41 is a circuit board
  • the second board body 42 is a flexible circuit board.
  • the second plate body 42 can be folded along the S-shape, and when the lens assembly 20 moves, the second plate body 42 can be extended and retracted synchronously, thereby expanding the range of movement of the lens assembly 20 .
  • the second plate body 42 is disposed opposite to the second driving assembly 50 , so that the space below the second plate body 42 can be fully utilized.
  • the housing 10 further includes a flexible circuit board receiving portion 60, as shown in FIG. 3, the flexible circuit board receiving portion 60 may be located on the front side of the bracket 12, and the second board body 42 and the second driving assembly 50 may be located on the flexible circuit board at the same time. In the board storage portion 60, the storage space of the flexible wiring board can be fully utilized.
  • the second driving assembly 50 includes a second magnetic member 51 and a second coil 52, one of the second magnetic member 51 and the second coil 52 is connected to the cover plate 13, the second magnetic member 51 and The other one of the second coils 52 is connected to the second plate body 42 .
  • the second coil 52 After the second coil 52 is energized, it can move relative to the second magnetic member 51 to drive the second plate body 42 .
  • the second magnetic member 51 may be disposed on the cover plate 13 and the second coil 52 may be disposed on the second plate body 42; or, the second magnetic member 51 may be disposed on the second plate body 42, and the second coil 52 may be disposed on the second plate body 42. It can be provided on the cover plate 13 .
  • the second magnetic member 51 is provided on the lower end surface of the second plate body 42
  • the second coil 52 is provided on the upper end surface of the cover plate 13 .
  • the second magnetic member 51 cooperates with the second coil 52, and the second magnetic member 51 can provide a magnetic field. According to Fleming’s left-hand rule, a force perpendicular to the direction of the magnetic field will be generated in the energized second coil 52. The force acts on the When the circuit board 40 is on, the movement of the circuit board 40 can be controlled. Similarly, the first magnetic member 31 cooperates with the first coil 32, and the first coil 32 can provide thrust after being energized.
  • the lens assembly 20 may be mounted on the bracket 12 through the diagonally connected cross support shafts 14 , and the cross support shafts 14 may include two mutually perpendicular hinge shafts.
  • the first drive The assembly 30 may include two first magnetic members 31 and two first coils 32 , and the lens assembly 20 is driven to rotate around one of the two hinge shafts by the first driving assembly 30 . It should be noted that, in the embodiment of the present application, the technical means for the first driving assembly 30 to drive the lens assembly 20 to rotate is a well-known technology, which will not be repeated here.
  • the second coil 52 of the second driving assembly 50 includes one or more coils, and various types of the second driving assembly 50 will be described below.
  • the number of coils is one, and various types of activities of the circuit board 40 can be realized by one coil.
  • the linear conductor moves, and when the current direction or the magnetic field direction is changed, the linear conductor moves in the opposite direction, thereby driving the circuit board 40 to move.
  • the coil is a ring conductor
  • the two sides of the ring conductor are subjected to forces in different directions, and the ring conductor can rotate around its own axis, thereby driving the circuit board 40 to rotate in a certain direction.
  • the second coil 52 is two annular coils, and the two annular coils are provided on the second plate body 42 at intervals.
  • the two loop coils may be a first loop coil and a second loop coil, respectively, and the first loop coil and the second loop coil may share a magnet.
  • the rotation of the second plate body 42 around a certain direction can be achieved.
  • the lower end surface of the second plate body 42 is substantially a rectangular piece.
  • the line parallel to the length direction of the second plate body 42 is called the Y axis
  • the line parallel to the width direction of the second plate body 42 is the x axis
  • the line perpendicular to the plane where the second plate body 42 is located is the Z axis axis.
  • the second plate body 42 may be folded substantially along the Z-axis direction.
  • the first loop coil and the second loop coil are located on the lower end surface of the second plate body 42 and are spaced apart along the length direction of the second plate body 42 . Both the first loop coil and the second loop coil are elliptical pieces extending substantially along the width direction of the second plate body 42 .
  • the second plate body 42 can be rotated around the Y-axis by defining the current direction and the magnetic field direction .
  • the second magnetic member 51 is a plate-like structure, that is, the second magnetic member 51 can be a flat coil, which can effectively save space.
  • the second magnetic member 51 is attached to the cover plate 13 to facilitate the assembly of the second magnetic member 51 .
  • the second magnetic member 51 may also be installed on the cover plate 13 by other installation methods, such as detachable installation methods such as snap connection and plug connection.
  • the camera module 100 further includes a flexible circuit board position feedback element 70 , and the real-time position of the circuit board 30 can be fed back through the flexible circuit board position feedback element 70 .
  • the position feedback element 70 of the flexible circuit board may be a Hall chip or the like, which is not limited herein.
  • the camera module further includes a position feedback element of the lens assembly, and the position feedback element of the lens assembly can be connected with the first driving assembly 30 .
  • the fitting algorithm records the position of the flexible circuit board by reading the data of the lens assembly position feedback element and the flexible circuit board position feedback element 70 The corresponding relationship with the position of the lens assembly is programmed into the memory.
  • the data in the memory is called to control the movement of the flexible circuit board, which offsets the pulling effect of the flexible circuit board on the lens assembly.
  • a closed-loop control system is added to the flexible circuit board, so that the flexible circuit board can follow the movement when the lens assembly moves, so as to avoid the interference of the flexible circuit board on the lens assembly, and improve the anti-shake performance of the lens assembly.
  • the embodiment of the present application further provides an electronic device, including the camera module 100 of any of the foregoing embodiments.
  • the lens assembly 20 may be electrically connected to the main board of the electronic device through the circuit board 40 , thereby realizing power supply to the lens assembly 20 .
  • the electronic device may be a smart phone, a tablet computer, or a wearable device, etc., which is not limited herein.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Studio Devices (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Lens Barrels (AREA)

Abstract

本申请公开了一种摄像头模组和电子设备，摄像头模组包括：壳体，所述壳体内设有容纳腔；镜头组件，所述镜头组件可活动地设在所述容纳腔内；第一驱动组件，所述第一驱动组件与所述镜头组件连接以驱动所述镜头组件活动，所述第一驱动组件的至少一部分设于所述壳体的内侧壁；线路板，所述线路板与所述镜头组件连接；第二驱动组件，所述第二驱动组件设于所述壳体，所述第二驱动组件的至少一部分与所述线路板连接以驱动所述线路板活动。

Description

摄像头模组和电子设备
相关申请的交叉引用
本申请要求享有于2020年12月23日提交的中国专利申请202011541995.4的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请属于摄像头技术领域，具体涉及一种摄像头模组和电子设备。
背景技术
随着信息网路技术的高速发展，视频已成为人们沟通交流、日常分享的首选手段，拍摄视频过程中对于画质的要求也越来越高。传统光学防抖摄像头防抖能力已经满足不了大众需求，影响用户体验。为提升摄像头防抖性能，将云台系统搬进摄像头，特别是手机摄像头。云台的作动不同于传统光学防抖摄像头，光学防抖摄像头的作动部分是模组内部的运动，而云台摄像头需要整个模组运动起来。
发明内容
在实现本申请过程中，发明人发现相关技术中至少存在如下问题：云台在运动的时候，柔性电路板就会对云台形成拉扯，干扰云台运动。
本申请旨在提供一种摄像头模组和电子设备，至少解决发明人发现的问题之一。
第一方面，本申请实施例提出了一种摄像头模组，包括：壳体，所述壳体内设有容纳腔；镜头组件，所述镜头组件可活动地设在所述容纳腔内；第一驱动组件，所述第一驱动组件与所述镜头组件连接以驱动所述镜头组件活动，所述第一驱动组件的至少一部分设于所述壳体的内侧壁；线路板，所述线路板与所述镜头组件连接；第二驱动组件，所述第二驱动组 件设于所述壳体，所述第二驱动组件的至少一部分与所述线路板连接以驱动所述线路板活动。
第二方面，本申请实施例提出了一种电子设备，包括上述摄像头模组。
在本申请的实施例中，采用第一驱动组件和第二驱动组件分别驱动镜头组件和线路板，使线路板与镜头组件同向活动，能够避免镜头组件在活动过程中对线路板造成拉扯，从而使镜头组件的移动距离更长、转动角度更大。
本申请实施例的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请实施例的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是相关技术的防抖云台的剖面图；
图2是根据本申请的摄像头模组的实施例的俯视图；
图3是根据本申请的摄像头模组的实施例的局部爆炸图；
图4是沿图2中A-A线的剖面图；
图5是沿图2中B-B线的剖面图；
图6是根据本申请实施例的摄像头模组的线路板的受力示意图。
附图标记：
摄像头模组100；
壳体10；容纳腔11；支架12；盖板13；交叉支撑轴14；
镜头组件20；
第一驱动组件30；第一磁性件31；第一线圈32；
线路板40；第一板体41；第二板体42；
第二驱动组件50；第二磁性件51；第二线圈52；
柔性线路板收纳部60；
柔性线路板位置反馈元件70；镜头组件位置反馈元件80；
柔性电路板1；摄像头模组头部2；柔性电路板盒3。
具体实施方式
下面将详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下，还可以获得其他实施例，这些实施例都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
图1显示了现有技术中的一种防抖云台。
如图1所示，现有的防抖云台中的柔性电路板1在摄像头模组头部2侧出线后进入一个密闭的柔性电路板盒3，在柔性电路板盒3里面采用S型绕折方式，经过五层绕折，再从柔性电路板盒3出去连接主板。这样摄像头模组作动时柔性电路板1有空间在柔性电路板盒3里面伸缩运动，从而减小阻力，但是这种方案仍然不能有效避免柔性电路板1对云台的拉扯，光学防抖性能会受到限制。
基于此，本申请的发明人经过长期的研究和实验，创造性的得出以下发明创造。
根据本申请实施例的摄像头模组100，包括壳体10、镜头组件20、第一驱动组件30、线路板40和第二驱动组件50。
具体而言，壳体10内设有容纳腔11，镜头组件20可活动地设在容纳腔11内，第一驱动组件30与镜头组件20连接以驱动镜头组件20活动，第一驱动组件30的至少一部分设于壳体10，线路板40与镜头组件20连接，第二驱动组件50设于壳体10，第二驱动组件50的至少一部分与线路板40连接以驱动线路板40活动。
换言之，根据本申请实施例的摄像头模组100主要由壳体10、安装于壳体10的镜头组件20、驱动镜头组件20活动的第一驱动组件30、与镜头组件20电连接的线路板40、驱动线路板40活动的第二驱动组件50组成。其中，壳体10为摄像头模组100的基础构件，壳体10能够为摄像头模组100的其他组成部分提供安装基础。在本申请实施例中，壳体10具有容纳腔11，容纳腔11能够起到容置镜头组件20的作用。
在具体的拍摄过程中，摄像头模组100由于抖动进而会发生倾斜，最终会影响拍摄质量。在本申请实施例公开的摄像头模组100中，镜头组件20相对于壳体10可活动，通过第一驱动组件30驱动镜头组件20活动，补偿摄像头模组100抖动造成的倾斜，对摄像头模组100实施有效的防抖。
在本申请实施例中，在第一驱动组件30驱动镜头组件20活动的同时，通过第二驱动组件50能够驱动线路板40同向活动，能够减小镜头组件20对线路板40造成的拉扯问题。需要说明的是，镜头组件20的活动类型包括移动以及旋转类型，在此不作限定。
其中需要说明的是，在安装第一驱动组件30时，可以将第一驱动组件30通过现有方式与镜头组件20连接。例如，如图2至图5所示，将第一驱动组件30的一部分与壳体10连接，并将第一驱动组件30的又一部分与镜头组件20连接。
在安装第二驱动组件50时，可以将第二驱动组件50的一部分安装在容纳腔11内且与线路板40连接，也可以将第二驱动组件50整体安装在容纳腔11外且与线路板40连接。
此外，第一驱动组件30和第二驱动组件50包括但不限于马达，也可以是其他能够实现镜头组件20和线路板40活动的驱动结构，例如驱动电机、包括驱动电机和与驱动电机配合的传动机构等。
由此，根据本申请实施例的摄像头模组100，采用第一驱动组件30和第二驱动组件50分别驱动镜头组件20和线路板40，使线路板40与镜头组件20同向活动，能够避免镜头组件20在活动过程中对线路板40造成拉扯，从而使镜头组件20的移动距离更长、转动角度更大。
根据本申请的一个实施例，第二驱动组件50驱动线路板40与第一驱动组件30驱动镜头组件20同步活动，能够进一步避免线路板40和镜头组件20之间发生相对运动，从而进一步提高了对于线路板40的防拉扯效果。
在本申请的一些具体实施方式中，第一驱动组件30包括第一磁性件31和第一线圈32，第一磁性件31和第一线圈32中的一个与壳体10连接，第一磁性件31和第一线圈32中的另一个与镜头组件20连接，第一线圈32通电后相对于第一磁性件31可活动以驱动镜头组件20。换言之，第一磁性件31可以设置在壳体10上，第一线圈32可以设置在镜头组件20上；或者，第一磁性件31可以设置在镜头组件20上，第一线圈32可以设置在壳体10上。例如，如图4和图5所示，第一磁性件31设于镜头组件20的外壁面，第一线圈32设于壳体10的内壁面，且与第一磁性件31的位置相对应。
根据本申请的一个实施例，壳体10包括支架12和盖板13，支架12设有第一侧开口的容纳腔11，镜头组件20可以设于容纳腔11内且相对于支 架12可活动，线路板40可以通过开口与镜头组件20连接。盖板13设于支架12的第一侧，第二驱动组件50设于盖板13。可选地，第二驱动组件50的一部分可以设于盖板13，第二驱动组件50的又一部分可以设于线路板40且可以相对于盖板13活动。
进一步地，线路板40包括第一板体41和第二板体42，第一板体41设于镜头组件20与盖板13之间，第一板体41的第一侧与镜头组件20连接，且与镜头组件20同步活动，第二板体42与第一板体41电连接，第二驱动组件50设于第二板体42与盖板13之间，第二驱动组件50与第二板体42连接以驱动第二板体42活动。第二板体42可以为柔性线路板、导线等。
为了便于描述，以下定义摄像头模组100沿上下方向装配，邻近观察者的方向为前侧，背向观察者的方向为后侧。
如图3所示，在支架12内限定有容纳腔11，并在支架12的下侧开设有开口。在支架12的前侧设有线路板40，并在支架12和线路板40的下方设有盖板13。第一板体41位于第二板体42的后侧，且位于镜头组件20的下方。在装配时，将第一板体41伸入支架12和盖板13之间，实现第一板体41与镜头组件20之间的电连接。并将第二板体42的下端面与第二驱动组件50连接，从而使第二板体42与镜头组件20同向运动。将线路板40分为第一板体41和第二板体42，能够在实现线路板40与第二驱动组件50连接的前提下，有利于线路板40与镜头组件20之间的连接以及镜头组件20的活动。
需要说明的是，上述对上、下方向和前、后侧的定义仅仅是为了方便描述本申请实施例的摄像头模组100的各部件的位置关系或者连接关系，不对本申请实施例造成限定。
此外，对于本申请实施例中相同的零部件，图中可能仅仅对其中一个零件或部件进行附图标记，对于其他相同的零件或部件，附图标记同样适用。
可选地，第一板体41为电路板，第二板体42为柔性线路板。在装配时，可以将第二板体42沿S形折叠，在镜头组件20活动时，第二板体42能够同步伸缩，扩大了镜头组件20的活动范围。进一步地，第二板体42 与第二驱动组件50相对设置，能够充分利用第二板体42的下方的空间。在壳体10还包括柔性线路板收纳部60时，如图3所示，柔性线路板收纳部60可位于支架12的前侧，第二板体42和第二驱动组件50可以同时位于柔性线路板收纳部60内，能够充分利用柔性线路板的收纳空间。
根据本申请的一个实施例，第二驱动组件50包括第二磁性件51和第二线圈52，第二磁性件51和第二线圈52中的一个与盖板13连接，第二磁性件51和第二线圈52中的另一个与第二板体42连接，第二线圈52通电后相对于第二磁性件51可活动以驱动第二板体42。换言之，第二磁性件51可以设置在盖板13上，第二线圈52可以设置在第二板体42上；或者，第二磁性件51可以设置在第二板体42上，第二线圈52可以设置在盖板13上。例如，如图3所示，第二磁性件51设于第二板体42的下端面，第二线圈52设于盖板13的上端面。
下面结合附图对本申请实施例的第一驱动组件30和第二驱动组件50的工作原理进行说明。
第二磁性件51和第二线圈52配合，第二磁性件51能够提供磁场，根据弗莱明左手法则，在通电的第二线圈52中会产生垂直于磁场方向的力，该力在作用在线路板40上时，能够控制线路板40活动。同理，第一磁性件31和第一线圈32配合，第一线圈32在通电后能够提供推力。
在本申请实施例中，如图3所示，镜头组件20可通过对角线相连的交叉支撑轴14安装在支架12上，交叉支撑轴14可以包括相互垂直的两个铰接轴，第一驱动组件30可包括两个第一磁性件31和两个第一线圈32，通过第一驱动组件30驱动镜头组件20绕两个铰接轴中的一个转动。其中需要说明的是，在本申请实施例中，第一驱动组件30驱动镜头组件20转动的技术手段为公知技术，在此不再赘述。
在本申请实施例中，第二驱动组件50的第二线圈52包括一个或多个线圈，下面对第二驱动组件50的多种类型进行说明。
情况一
线圈的数量为一个，通过一个线圈能够实现线路板40的多种类型的活动。
具体地，在线圈为直线形导体时，对直线形导体通电后，直线形导体移动，在改变电流方向或者磁场方向时，直线形导体反向移动，从而能够驱动线路板40移动。
在线圈为环形导体时，对环形导体通电后，环形导体的两侧受到不同方向的作用力，环形导体能够绕自身轴向旋转，从而能够驱动线路板40绕某一方向旋转。
情况二
第二线圈52为两个环形的线圈，两个环形的线圈间隔开设于第二板体42。
参考附图3，例如两个环形的线圈可分别为第一环形线圈和第二环形线圈，第一环形线圈和第二环形线圈可以共用一个磁铁。通过单独控制第一环形线圈和第二环形线圈中的一个工作，能够实现第二板体42绕某一方向的旋转。
在本申请实施例中，在第二板体42沿S形折叠时，第二板体42的下端面大致为矩形件。为了便于描述，称平行于第二板体42的长度方向的直线为Y轴，平行于第二板体42的宽度方向的直线为x轴，垂直于第二板体42所在平面的直线为Z轴。第二板体42可以大致沿Z轴方向折叠。
第一环形线圈和第二环形线圈位于所述第二板体42的下端面，且沿第二板体42的长度方向间隔开分布。第一环形线圈和第二环形线圈均为大致沿第二板体42的宽度方向延伸的椭圆形件。在第一环形线圈和第二环形线圈上产生的作用力相同，或者单独开启第一环形线圈或第二环形线圈时，通过限定电流方向和磁场方向，能够实现第二板体42绕Y轴旋转。
需要说明的是，上述对x、Y、Z轴方向的定义仅仅是为了方便描述本申请实施例的摄像头模组100的各零件或部件之间的位置关系或连接关系，不对本申请实施例造成限定。
进一步地，第二磁性件51为板状结构，也就是说，第二磁性件51可为扁平线圈，能够有效节约空间。将第二磁性件51贴设在盖板13上，便于第二磁性件51的装配。需要说明的是，第二磁性件51也可以采用其他安装方式安装在盖板13上，例如卡接、插接等可拆卸安装方式。
根据本申请的一个实施例，摄像头模组100还包括柔性线路板位置反馈元件70，通过柔性线路板位置反馈元件70能够反馈线路板30的实时位置。柔性线路板位置反馈元件70可以为霍尔芯片等，在此不作限定。
在本申请的一些具体实施方式中，摄像头模组还包括镜头组件位置反馈元件，镜头组件位置反馈元件能够与第一驱动组件30连接。摄像头模组100在组装生产时，并校准镜头组件运动线性关系时，当镜头组件运动，通过读取镜头组件位置反馈元件和柔性电路板位置反馈元件70的数据，拟合算法记录柔性电路板位置与镜头组件位置对应关系，烧录到存储器里，电子设备使用时调用存储器里的数据控制柔性电路板运动，抵消柔性电路板对镜头组件的拉扯影响。
也就是说，柔性电路板增加闭环控制系统，使镜头组件运动时柔性电路板能够跟随运动，避免柔性电路板对镜头组件的干扰，提升镜头组件防抖性能。
本申请实施例还提供了一种电子设备，包括上述任一实施例的摄像头模组100。镜头组件20可以通过线路板40与电子设备的主板电连接，进而实现对镜头组件20的供电。
根据本申请实施例的电子设备可以是智能手机、平板电脑或者可穿戴设备等，在此不作限定。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种摄像头模组(100)，包括：
    壳体(10)，所述壳体(10)内设有容纳腔(11)；
    镜头组件(20)，所述镜头组件(20)可活动地设在所述容纳腔(11)内；
    线路板(40)，所述线路板(40)与所述镜头组件(20)连接；
    云台组件，所述云台组件包括：
    第一驱动组件(30)，所述第一驱动组件(30)与所述镜头组件(20)连接以驱动所述镜头组件(20)活动，所述第一驱动组件(30)的至少一部分设于所述壳体(10)的内侧壁；
    第二驱动组件(50)，所述第二驱动组件(50)设于所述壳体(10)，所述第二驱动组件(50)的至少一部分与所述线路板(40)连接以驱动所述线路板(40)活动。
  2. 根据权利要求1所述的摄像头模组(100)，其中，所述第二驱动组件(50)驱动所述线路板(40)与所述第一驱动组件(30)驱动所述镜头组件(20)同步活动。
  3. 根据权利要求1所述的摄像头模组(100)，其中，所述第一驱动组件(30)包括第一磁性件(31)和第一线圈(32)，所述第一磁性件(31)和第一线圈(32)中的一个设于所述壳体(10)的内壁面，所述第一磁性件(31)和所述第一线圈(32)中的另一个设于所述镜头组件(20)的外壁面，所述第一线圈(32)通电后相对于所述第一磁性件(31)可活动以驱动所述镜头组件(20)。
  4. 根据权利要求1所述的摄像头模组(100)，其中，所述壳体(10)包括：
    支架(12)，所述支架(12)设有第一侧开口的所述容纳腔(11)；
    盖板(13)，所述盖板(13)设于所述支架(12)的第一侧，所述第二驱动组件(50)设于所述盖板(13)。
  5. 根据权利要求4所述的摄像头模组(100)，其中，所述线路板(40)包括：
    第一板体(41)，所述第一板体(41)设于所述镜头组件(20)与所述盖板(13)之间，所述第一板体(41)的第一侧与所述镜头组件(20)连接，且与所述镜头组件(20)同步活动；
    第二板体(42)，所述第二板体(42)与所述第一板体(41)电连接，所述第二驱动组件(50)设于所述第二板体(42)与所述盖板(13)之间，所述第二驱动组件(50)与所述第二板体(42)连接以驱动所述第二板体(42)活动。
  6. 根据权利要求5所述的摄像头模组(100)，其中，所述第一板体(41)为电路板，所述第二板体(42)为柔性线路板(40)。
  7. 根据权利要求6所述的摄像头模组(100)，其中，所述第二驱动组件(50)包括：第二磁性件(51)和第二线圈(52)，所述第二磁性件(51)和所述第二线圈(52)中的一个与所述盖板(13)连接，所述第二磁性件(51)和所述第二线圈(52)中的另一个与所述第二板体(42)连接，所述第二线圈(52)通电后相对于所述第二磁性件(51)可活动以驱动所述第二板体(42)。
  8. 根据权利要求7所述的摄像头模组(100)，其中，所述第二磁性件(51)为板状结构，所述第二磁性件(51)贴设在所述盖板(13)上。
  9. 根据权利要求7所述的摄像头模组(100)，其中，所述第二线圈(52)为两个环形线圈(521)，两个所述环形线圈(521)间隔开设于所述第二板体(42)。
  10. 一种电子设备，包括根据权利要求1-9中任一项所述的摄像头模组(100)。
PCT/CN2021/138664 2020-12-23 2021-12-16 摄像头模组和电子设备 Ceased WO2022135255A1 (zh)

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