WO2023184566A1 - 镜头模组及电子设备 - Google Patents

镜头模组及电子设备 Download PDF

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Publication number
WO2023184566A1
WO2023184566A1 PCT/CN2022/086083 CN2022086083W WO2023184566A1 WO 2023184566 A1 WO2023184566 A1 WO 2023184566A1 CN 2022086083 W CN2022086083 W CN 2022086083W WO 2023184566 A1 WO2023184566 A1 WO 2023184566A1
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WO
WIPO (PCT)
Prior art keywords
bracket
shake
focus
control circuit
conductive member
Prior art date
Application number
PCT/CN2022/086083
Other languages
English (en)
French (fr)
Inventor
徐同明
Original Assignee
诚瑞光学(南宁)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 诚瑞光学(南宁)有限公司 filed Critical 诚瑞光学(南宁)有限公司
Publication of WO2023184566A1 publication Critical patent/WO2023184566A1/zh

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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
    • 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
    • H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
    • 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
    • G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
    • 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
    • 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
    • H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
    • 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
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • 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

Definitions

  • the embodiments of the present application relate to the field of optical imaging technology, and in particular to a lens module and electronic equipment.
  • lens modules have been continuously updated to achieve higher and higher camera accuracy.
  • the lens module is equipped with automatic focus (Automatic Focus, AF) function and optical image stabilization (optical image stabilization (OIS) function.
  • Auto Focus AF
  • OIS optical image stabilization
  • the focus control circuit in the lens module directly passes through the FPC (Flexible PC).
  • FPC Flexible PC
  • Printed Circuit, flexible circuit board is connected to the external circuit. In this way, the FPC may be pulled when the lens assembly moves.
  • a lens module including a base, an elastic suspension component and a lens assembly.
  • the base is provided with an anti-shake control circuit board and a first conductive member; the elastic suspension component is connected to the base; the lens assembly is connected via The elastic suspension component is connected to the base.
  • the lens assembly includes an anti-shake bracket connected to the elastic suspension component, a focus control circuit board and a second conductive component arranged on the anti-shake bracket.
  • the focus control circuit board is connected in turn via the second conductive component, the elastic
  • the suspension component and the first conductive member are electrically connected to the anti-shake control circuit board.
  • Some embodiments of the present application also provide an electronic device, including the above-mentioned lens module.
  • Figure 1 is a schematic three-dimensional structural diagram of a lens module provided by some embodiments of the present application.
  • Figure 2 is a schematic diagram of the assembly structure of the base and the lens assembly in the lens module provided by some embodiments of the present application;
  • Figure 3 is a schematic structural diagram of the electrical connection between the focus control circuit board and the anti-shake control circuit board in the lens module provided by some embodiments of the present application;
  • Figure 4 is a schematic diagram of the assembly structure of the anti-shake bracket and the focusing bracket in the lens module provided by some embodiments of the present application;
  • Figure 5 is a schematic diagram of the electrical connection structure between the focus control circuit board and the focus coil in the lens module provided by some embodiments of the present application.
  • High-performance lens modules are generally equipped with autofocus and optical image stabilization functions.
  • the lens module autofocuses, it needs to move the lens along the optical axis in the storage space enclosed by the base and the housing.
  • Optical image stabilization uses movable components to compensate for the vibrating light path to ensure the clarity of photos taken.
  • the anti-shake bracket in the lens assembly can be movably installed in the receiving space enclosed by the base and the housing.
  • Optical image stabilization is achieved by controlling the movement of the anti-shake bracket in the vertical direction along the optical axis of the lens.
  • the focus control circuit is connected to the external circuit through the FPC.
  • the flexibility of the FPC itself allows the FPC to deform to a certain extent during the movement of the lens assembly. However, in the process of actual application, the FPC will still cause undesirable situations due to being pulled when the lens assembly moves.
  • some embodiments of the present application provide a lens module.
  • the electrical signal is transmitted through the suspension wire hanging the lens assembly in the lens module, thereby realizing the transmission of the electrical signal between the anti-shake control circuit and the focus control circuit, so that the electrical signal can be normally transmitted to the external circuit via the anti-shake control circuit board.
  • the suspension wire in the lens module is a component that connects the lens assembly and the base.
  • the lens assembly is suspended from the base through multiple suspension wires. Through the elastic deformation characteristics of the suspension wire itself, the lens assembly can move within the storage space enclosed by the base and the housing.
  • the suspension wire When the suspension wire is used to transmit electrical signals, since the suspension wire is a component that realizes the movable connection between the lens assembly and the base, it can adapt to the pulling phenomenon that occurs when the lens assembly moves. This avoids poor electrical signal transmission when the lens assembly moves due to the use of FPC.
  • the lens module provided by some embodiments of the present application includes a base 10, an elastic suspension component 20 and a lens assembly 30.
  • the base 10 is provided with an anti-shake control circuit board 11 and a first conductive member 12 ;
  • the elastic suspension component 20 is connected to the base 10 ;
  • the lens assembly 30 is connected to the base 10 via the elastic suspension component 20 , and the lens assembly 30 includes an anti-shake bracket 31 connected to the elastic suspension component 20 and a focus disposed on the anti-shake bracket 31
  • the control circuit board 32 and the second conductive component 33 are electrically connected to the anti-shake control circuit board 11 via the second conductive component 33 , the elastic suspension component 20 , and the first conductive component 12 in sequence.
  • the base 10 is a component in the lens module used to provide a connection basis for the lens assembly 30.
  • the base 10 can be disposed in the housing 50 of the lens module.
  • the housing 50 and the base 60 of the lens module together form a receiving space, and the base 10 and the lens assembly 30 connected to the base 10 via the elastic suspension assembly 20 are located in the receiving space.
  • the anti-shake control circuit board 11 is a circuit board provided on the base 10 for outputting anti-shake control signals.
  • the first conductive member 12 is provided on the base 10 for connecting the anti-shake control circuit board 11 and the elastic suspension component. 20 components for establishing electrical connections.
  • the elastic suspension assembly 20 is a component that includes a plurality of elastic members 21 and plays a connecting role between the base 10 and the lens assembly 30. Based on the elastic deformation characteristics of the elastic suspension assembly 20, the lens assembly can be driven by adopting a certain driving form. 30 moves relative to the base 10 to achieve the anti-shake function.
  • the elastic member 21 may be a wire-shaped or sheet-shaped elastic member 21.
  • the lens assembly 30 is a component in the lens module that implements optical imaging and controls imaging quality.
  • the anti-shake bracket 31 in the lens assembly 30 can be driven to achieve anti-shake.
  • the focus control circuit board 32 provided on the anti-shake bracket 31 in the lens assembly 30 is used to output control signals to control the movement of the lens 38 to achieve automatic focusing.
  • the second conductive component 33 is disposed on the anti-shake bracket 31 and is used to establish an electrical connection between the focus control circuit board 32 and the elastic suspension assembly 20 .
  • the lens module provided by some embodiments of the present application introduces an elastic suspension component 20 as a transmission channel for electrical signals.
  • the first conductive member 12 provided on the base 10 and the second conductive member 33 provided on the anti-shake bracket 31 are both It is electrically connected to the elastic suspension component 20 .
  • the first conductive member 12 is also electrically connected to the anti-shake control circuit board 11, and the second conductive member 33 is also electrically connected to the focus control circuit board 32, so that the focus control circuit board 32, the second conductive member 33, and the elastic suspension assembly 20.
  • An electrical signal transmission channel is established between the first conductive member 12 and the anti-shake control circuit board 11 .
  • the anti-shake bracket 31 has an object side 311 and an image side 312 arranged oppositely along the optical axis direction.
  • the first conductive member 12 is embedded in the base 10 and close to the object side 311 of the anti-shake bracket 31 .
  • the second conductive member 33 It is embedded in the anti-shake bracket 31 and located on the image side 312 of the anti-shake bracket 31 .
  • the object side 311 of the anti-shake bracket 31 refers to the side where the subject is located, and the image side 312 of the anti-shake bracket 31 refers to the side where the subject forms an image.
  • the anti-shake bracket 31 is close to the base 10
  • One side of the anti-shake bracket 31 is the object side 311
  • the side of the anti-shake bracket 31 away from the base 11 is the image side 312 .
  • the first conductive member 12 is located close to the object side 311 of the anti-shake bracket 31 , that is, close to the location of the anti-shake control circuit board 11 .
  • the first conductive member 12 is arranged in a plate shape, and can be arranged into a plurality of different plate-like parts according to the specific structure of the base 10 , and each plate-like part can be integrally formed.
  • the first conductive member 12 can be embedded in the base 10 , that is, the first conductive member 12 is embedded entirely in the base 10 .
  • part of the surface of the first conductive member 12 is attached to the anti-shake control circuit board 11 , and a through hole is provided in the portion where the first conductive member 12 is electrically connected to the elastic suspension component 20 , so that the first conductive member 12 can be sleeved on the
  • the base 10 is connected to the suspension wire in the elastic suspension assembly 20 .
  • the first conductive member 12 can be fixed to the suspension wire in the form of welding to ensure the electrical connection effect with the suspension wire.
  • the second conductive member 33 is located on the image side 312 of the anti-shake bracket 31 , that is, close to the position where the elastic suspension component 20 is connected to the anti-shake bracket 31 .
  • the second conductive member 33 is arranged in a plate shape, and can be arranged into a plurality of different plate-like parts according to the specific structure of the anti-shake bracket 31 , and each plate-like part can be integrally formed.
  • the second conductive member 33 can be embedded in the anti-shake bracket 31 , that is, the second conductive member 33 is partially embedded in the anti-shake bracket 31 .
  • part of the surface of the second conductive member 33 is in contact with the focus control circuit board 32, and a through hole is provided in the portion where the second conductive member 33 is electrically connected to the elastic suspension component 20.
  • the shaking bracket 31 is connected to the suspension wire in the elastic suspension assembly 20.
  • the second conductive member 33 can be fixed to the suspension wire in the form of welding to ensure the electrical connection effect with the suspension wire.
  • the first conductive member 12 may also be fixed on the surface of the base 10
  • the second conductive member 33 may be fixed on the surface of the anti-shake bracket 31 .
  • the first conductive member 12 can be effectively fixed on the base 10 and the second conductive member 33 can be effectively fixed.
  • Ground is fixed on the anti-shake bracket 31.
  • the focus control circuit board 32 may include a main body portion 321 that is snugly connected to the anti-shake bracket 31 and two extension portions 322 bent and extended from the edge of the main portion 321 . Each extension portion 322 extends to the anti-shake bracket. 31 is located on the surface of the image side 312 and is electrically connected to the second conductive member 33 .
  • the main part 321 and the two extension parts 322 are different parts of the focus control circuit board 32 .
  • the main part 321 can be provided with devices for realizing control functions and detection elements (such as Hall elements) for detecting the movement of the lens 38 .
  • Each extension portion 322 can facilitate electrical connection with the second conductive member 33 .
  • the main body part 321 is fixed on the anti-shake bracket 31.
  • an escape hole can be provided on the anti-shake bracket 31 at the position where the main body part 321 is fixed. .
  • the two extension portions 322 respectively bend and extend from the edge of the main body portion 321 toward the image side 312 of the anti-shake bracket 31 , and after extending to the surface of the anti-shake bracket 31 located on the image side 312 , are electrically connected to the second conductive member 33 . Thereby, the electrical signal is transmitted to the second conductive member 33 and the electrical signal of the external circuit is received from the second conductive member 33 .
  • each extension portion 322 is electrically connected to two second conductive members 33 disposed on the image side 312 of the anti-shake bracket 31 , and each second conductive member 33 includes a plane that is snugly connected to the extension portion 322 part 331 and a plug-in part 332 integrally provided with the planar part 331.
  • the plug-in part 332 of each second conductive member 33 is plugged into the elastic suspension component 20, it is connected to a first conductive part close to the object side 311 of the anti-shake bracket 31.
  • Piece 12 is electrically connected.
  • suspension wires included in the elastic suspension assembly 20 are arranged around the anti-shake bracket 31 .
  • an electrical connection may be established between each extension 322 and two suspension wires in the elastic suspension component 20 . Therefore, the two extension portions 322 can be arranged symmetrically about the geometric center of the main body portion 321 , that is, the portions of the two extension portions 322 connected to the main body portion 321 extend along two opposite directions respectively. Therefore, each extension portion 322 extends to the surface of the anti-shake bracket 31 on the image side 312 and can be electrically connected to two adjacent suspension wires in the elastic suspension assembly 20 .
  • the lens assembly 30 also includes a focus bracket 34 for fixing the lens 38 and a focus coil 35 wound around the focus bracket 34.
  • the focus bracket 34 is connected to the anti-shake bracket 31 via the elastic piece assembly 40, and the focus coil 35 is electrically connected to the anti-shake bracket 31 via the elastic piece assembly 40. Connected to focus control circuit board 32.
  • the focus coil 35 is entirely wound around the periphery of the focus bracket 34. After being powered on, the focus coil 35 cooperates with the magnet 37 provided on the anti-shake bracket 31 to drive and fix the focus bracket 34 via electromagnetic force.
  • the lens 38 on the focusing bracket 34 moves along the optical axis direction, thereby achieving automatic focusing.
  • the electrical connection between the focus control circuit board 32 and the focus coil 35 can be achieved through the spring assembly 40 connecting the anti-shake bracket 31 and the focus bracket 34 . That is, the elastic piece assembly 40 not only connects the anti-shake bracket 31 and the focus bracket 34 , but also serves to electrically connect the focus coil 35 and the focus control circuit board 32 .
  • the elastic piece assembly 40 may include a plurality of independently arranged elastic pieces 41.
  • the plurality of elastic pieces 41 are divided into two groups. One group of elastic pieces 41 is connected to the anti-shake bracket 31 and the focusing bracket 34 on the object side 311 of the anti-shake bracket 31, and the other group is connected to the object side 311 of the anti-shake bracket 31.
  • the elastic piece 41 connects the anti-shake bracket 31 and the focus bracket 34 on the image side 312 of the anti-shake bracket 31 .
  • the two sets of elastic pieces 41 can connect the focus bracket 34 from the object side 311 and the image side 312 of the anti-shake bracket 31 respectively. While ensuring the connection effect between the anti-shake bracket 31 and the focus bracket 34, it can also ensure that the focus bracket 34 moves during focusing. The process is relatively stable and there will be no positional mutations. As shown in FIG. 4 , in some cases, four elastic pieces 41 can be used as a group, and the two groups of elastic pieces 41 can be fixed on the object side 311 and the image side 312 of the anti-shake bracket 31 in a one-to-one manner. Since the positions of the elastic pieces 41 are relatively corresponding, during the process of controlling the movement of the focus bracket 34, the forces received by the focus bracket 34 from the multiple elastic pieces 41 are relatively balanced, ensuring the stability of the focus bracket 34 during the movement.
  • the focus bracket 34 is provided with a first terminal 341 and a second terminal 342 that are electrically connected to the focus coil 35 respectively.
  • the first terminal 341 protrudes from the surface of the focus bracket 34 on the object side 311, and the second terminal 342 The surface of the self-focusing bracket 34 on the image side 312 protrudes.
  • the first terminal 341 and the second terminal 342 respectively pass through an elastic piece 41 and are electrically connected to the passed elastic piece 41 .
  • the first terminal 341 and the second terminal 342 are the portions of the focus bracket 34 from which the focus coil 35 is led out to facilitate the electrical connection between the focus coil 35 and the focus control circuit board 32 located on the anti-shake bracket 31 .
  • the anti-shake bracket 31 is provided with a third conductive member 36 .
  • the third conductive member 36 includes a connecting portion 361 that is closely connected to the elastic piece 41 and is bent from the connecting portion 361 toward the image side 312 of the anti-shake bracket 31 .
  • the extended extension portion 362 is electrically connected to the focus control circuit board 32
  • the elastic piece 41 electrically connected to the first terminal 341 is electrically connected to the focus control circuit board 32 through the third conductive member 36 .
  • the third conductive member 36 is arranged in a plate shape, and can be arranged into a plurality of different plate-like parts according to the specific structure of the anti-shake bracket 31 , and each plate-like part can be integrally formed.
  • the third conductive member 36 can be embedded in the anti-shake bracket 31 , that is, the third conductive member 36 is partially or entirely embedded in the anti-shake bracket 31 .
  • the connecting portion 361 and the extending portion 362 are two parts of the third conductive member 36 .
  • the surface of the connecting portion 361 is in contact with the elastic piece 41 to achieve electrical connection with the elastic piece 41 .
  • the extension part 362 is used to achieve electrical connection with the focus control circuit board 32.
  • the edge of the extension part 362 can be partially bent, so that part of the surface of the extension part 362 can be connected to the focus control circuit board 32 at the anti-protection position.
  • the extension portion 322 of the image side 312 of the bracket 31 is shaken to ensure the electrical signal transmission effect between the third conductive member 36 and the focus control circuit board 32 .
  • each elastic piece 41 may include two fitting parts 411 and a suspension part 412 connecting the two fitting parts 411.
  • the two fitting parts 411 of each elastic piece 41 are respectively fitted and connected.
  • the suspension portion 412 of each elastic piece 41 is bent and extended between two fitting portions 411 .
  • the bonding portion 411 can ensure a bonding area when connected to one of the anti-shake bracket 31 and the focus bracket 34 to ensure stability when connected to one of the anti-shake bracket 31 and the focus bracket 34 .
  • the suspension part 412 is the part of the elastic piece 41 that undergoes elastic deformation.
  • the suspension part 412 is suspended between the anti-shake bracket 31 and the focus bracket 34 to ensure that the two fitting parts 411 are respectively connected to the anti-shake bracket 31 and the focus bracket 34 .
  • the focusing bracket 34 can move relative to the anti-shake bracket 31 .
  • the hanging portion 412 of each elastic piece 41 is bent and extended between the two fitting portions 411. At the same time, the hanging portion 412 can be bent multiple times between the two fitting portions 411. This is to ensure that the suspension portion 412 of each elastic piece 41 has sufficient deformation characteristics to meet the required deformation amount of the focusing bracket 34 during the focusing movement.
  • the anti-shake control circuit board 11 may include a first part 111 that is snugly connected to the base 10 and two second parts 112 that bend and extend from the first part 111 toward the image side 312 of the anti-shake bracket 31 .
  • the two second parts 112 are used for electrical connection with external circuits.
  • the first part 111 of the anti-shake control circuit board 11 is entirely disposed in the base 10 and is connected to a plurality of anti-shake coils 13 .
  • Each anti-shake coil 13 corresponds to the position of each magnet 37 on the anti-shake bracket 31 .
  • the anti-shake bracket 31 can be driven by electromagnetic force to move in the vertical direction along the optical axis, thereby achieving optical anti-shake.
  • a detection circuit board with Hall elements arranged on the base 60 of the lens module can also be provided, and the Hall elements on the detection circuit board can be arranged facing the magnet 37 on the anti-shake bracket 31 .
  • the position of the anti-shake bracket 31 can be detected in real time, so that after knowing the accurate position of the anti-shake bracket 31, it can be determined whether the anti-shake bracket 31 has moved to the corresponding position.
  • Some embodiments of the present application also provide an electronic device, including the lens module in the above embodiments.
  • Electronic devices can be, but are not limited to, mobile phones, tablets, laptops and other electronic products with camera functions.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Lens Barrels (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Abstract

一种镜头模组及电子设备, 涉及光学成像技术领域。其中的镜头模组包括基座(10)、弹性悬挂组件(20)以及镜头组件(30)，基座(10)设置有防抖控制电路板(11)以及第一导电件(12)；弹性悬挂组件(20)与基座(10)连接；镜头组件(30)经由弹性悬挂组件(20)连接至基座(10)，镜头组件(30)包括与弹性悬挂组件(20)连接的防抖支架(31)和设置于防抖支架(31)上的对焦控制电路板(32)以及第二导电件(33)，对焦控制电路板(32)依次经由第二导电件(33)、弹性悬挂组件(20)、第一导电件(12)电连接至防抖控制电路板(11)。

Description

镜头模组及电子设备
本申请引用于2022年3月30日递交的名称为“镜头模组及电子设备”、申请号为“2022207224094”的中国专利申请，该中国专利申请通过引用被全部并入本申请。
技术领域
本申请实施方式涉及光学成像技术领域，特别涉及一种镜头模组及电子设备。
 背景技术
近年来，随着用户对摄像需求的不断提升，镜头模组也不断更新，以达到越来越高的摄像精度。通常，镜头模组为了确保摄像时的清晰度，会配备自动对焦（Automatic Focus，AF）功能和光学防抖（optical image stabilization，OIS）功能。而在配备自动对焦功能和光学防抖功能的镜头模组中，由于镜头组件需要在底座与外壳共同围成的收容空间内移动，因此如何使对焦控制电路的信号能够不受影响地传输至外部电路是一个重要的问题。
然而，在一些情形下，镜头模组中的对焦控制电路直接通过FPC（Flexible Printed Circuit，柔性电路板）连接至外部电路。这样，会导致FPC在镜头组件运动时出现因被拉扯而导致的不良情况。
 技术解决方案
本申请一些实施例提供了一种镜头模组，包括基座、弹性悬挂组件以及镜头组件，基座设置有防抖控制电路板以及第一导电件；弹性悬挂组件与基座连接；镜头组件经由弹性悬挂组件连接至基座，镜头组件包括与弹性悬挂组件连接的防抖支架和设置于防抖支架上的对焦控制电路板以及第二导电件，对焦控制电路板依次经由第二导电件、弹性悬挂组件、第一导电件电连接至防抖控制电路板。
本申请一些实施例还提供了一种电子设备，包括上述的镜头模组。
 附图说明
图1是本申请一些实施例提供的镜头模组的立体结构示意图；
图2是本申请一些实施例提供的镜头模组中基座与镜头组件的装配结构示意图；
图3是本申请一些实施例提供的镜头模组中对焦控制电路板与防抖控制电路板电连接的结构示意图；
图4是本申请一些实施例提供的镜头模组中防抖支架与对焦支架的装配结构示意图；
图5是本申请一些实施例提供的镜头模组中对焦控制电路板与对焦线圈的电连接结构示意图。
 本发明的实施方式
为使本申请实施方式的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施方式进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施方式中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也可以实现本申请所要求保护的技术方案。
在高性能镜头模组中，一般配备有自动对焦功能和光学防抖功能。镜头模组在自动对焦时，需要使镜头在底座与外壳共同围成的收容空间内沿光轴方向移动。光学防抖是通过可移动式的部件，对发生振动的光路进行补偿，从而确保拍摄照片的清晰度。在实际情形下，可以将镜头组件中的防抖支架可移动地安装在底座与外壳共同围成的收容空间内。通过控制防抖支架沿镜头光轴的垂直方向移动，来实现光学防抖。
而在镜头模组中，镜头组件运动时，对焦控制电路所在电路板会被带动而一起发生移动。因此，如何在镜头组件运动的过程中，确保电信号在对焦控制电路与外部电路之间的正常传输是一个重要的问题。
在一些情形下，对焦控制电路通过FPC连接至外部电路，FPC自身的柔性使得该FPC能够在镜头组件运动的过程中，有一定的形变。但是，在实际应用的过程中，依然会导致FPC在镜头组件运动时出现因被拉扯而导致的不良情况。
基于此，本申请一些实施例提供了一种镜头模组。通过镜头模组内悬挂镜头组件的悬丝传输电信号，进而实现电信号在防抖控制电路与对焦控制电路之间的传输，以便使电信号能够经由防抖控制电路板正常传输至外部电路。
悬丝在镜头模组中是起到连接镜头组件与基座的部件，镜头组件通过多根悬丝悬挂于基座上。通过悬丝自身的弹性形变特性，可以使镜头组件能够在底座与外壳共同围成的收容空间内运动。
在采用悬丝传输电信号时，由于悬丝是实现镜头组件与基座可移动连接地部件，因此能够适应因镜头组件运动时存在的拉扯现象。从而避免因采用FPC而在镜头组件运动时出现电信号传输不良的情况。
下面结合图1和图2说明本申请一些实施例提供的镜头模组的结构。
如图1和图2所示，本申请一些实施例提供的镜头模组包括基座10、弹性悬挂组件20以及镜头组件30，基座10设置有防抖控制电路板11以及第一导电件12；弹性悬挂组件20与基座10相连；镜头组件30经由弹性悬挂组件20连接至基座10，镜头组件30包括与弹性悬挂组件20连接的防抖支架31和设置于防抖支架31上的对焦控制电路板32以及第二导电件33，对焦控制电路板32依次经由第二导电件33、弹性悬挂组件20、第一导电件12电连接至防抖控制电路板11。
基座10是镜头模组中用于为镜头组件30提供连接基础的部件，基座10可以设置在镜头模组的外壳50内。镜头模组的外壳50与底座60共同围成收容空间，基座10以及经由弹性悬挂组件20与基座10连接的镜头组件30均位于该收容空间内。防抖控制电路板11是设置于基座10上用于输出防抖控制信号的电路板，第一导电件12是设置于基座10上，用于在防抖控制电路板11与弹性悬挂组件20之间建立电连接的部件。
弹性悬挂组件20为包括多个弹性件21，并在基座10与镜头组件30之间起到连接作用的部件，基于弹性悬挂组件20的弹性形变特性，可以通过采取一定的驱动形式驱动镜头组件30相对基座10运动，以实现防抖功能。弹性件21可以采用丝状或者片状的弹性件21。
镜头组件30是镜头模组中实现光学成像以及控制成像质量的部件，镜头组件30中的防抖支架31可以被驱动以实现防抖。镜头组件30中设置在防抖支架31上的对焦控制电路板32，则用于输出控制信号以控制镜头38移动而实现自动对焦。第二导电件33是设置于防抖支架31上，用于在对焦控制电路板32与弹性悬挂组件20之间建立电连接的部件。
本申请一些实施例提供的镜头模组，引入弹性悬挂组件20作为电信号的传输通道，设置于基座10上的第一导电件12以及设置于防抖支架31上的第二导电件33均与弹性悬挂组件20电连接。同时，第一导电件12还电连接至防抖控制电路板11，第二导电件33还电连接至对焦控制电路板32，从而在对焦控制电路板32、第二导电件33、弹性悬挂组件20、第一导电件12以及防抖控制电路板11之间建立起了电信号的传输通道。使得对焦控制电路板32上的对焦控制电路能够通过该传输通道，与防抖控制电路板11之间建立电信号传输，并借由防抖控制电路板11实现与外部电路的电连接。由于弹性悬挂组件20可以较好地适应镜头组件30运动时所出现的拉扯现象，因此可以避免因采用FPC实现电连接而在镜头组件30运动时出现的不良情况。
其中，防抖支架31具有沿光轴方向相对设置的物侧311和像侧312，第一导电件12嵌设在基座10内并靠近防抖支架31的物侧311，第二导电件33嵌设在防抖支架31上并位于防抖支架31的像侧312。
防抖支架31的物侧311指被摄物体所在的一侧，而防抖支架31的像侧312则指被摄物体形成图像的一侧，在图2中，防抖支架31靠近基座10的一侧即物侧311，而防抖支架31远离基座11的一侧即像侧312。
第一导电件12的位置靠近防抖支架31的物侧311设置，即靠近防抖控制电路板11所在位置。第一导电件12呈板状设置，并可以依据基座10具体结构设置成多个不同的板状部分，各板状部分可以一体成型。为了确保第一导电件12固定在基座10上的稳定性，可以将第一导电件12嵌设在基座10内，即第一导电件12整体嵌入基座10。同时，第一导电件12的部分表面与防抖控制电路板11贴合，第一导电件12与弹性悬挂组件20电连接的部分设置有通孔，可以将第一导电件12套设在与基座10连接的弹性悬挂组件20中的悬丝上。并且，第一导电件12可以采取焊接形式与悬丝固定，以确保与悬丝之间的电连接效果。
第二导电件33位于防抖支架31的像侧312，即靠近弹性悬挂组件20与防抖支架31连接的位置。第二导电件33呈板状设置，并可以依据防抖支架31具体结构设置成多个不同的板状部分，各板状部分可以一体成型。为了确保第二导电件33固定在防抖支架31上的稳定性，可以将第二导电件33嵌设在防抖支架31上，即第二导电件33部分嵌入防抖支架31。同时，第二导电件33的部分表面与对焦控制电路板32贴合，第二导电件33与弹性悬挂组件20电连接的部分设置有通孔，可以将第二导电件33套设在与防抖支架31连接的弹性悬挂组件20中的悬丝上。并且，第二导电件33可以采取焊接形式与悬丝固定，以确保与悬丝之间的电连接效果。
在其他实施方式中，也可以将第一导电件12固定在基座10表面，将第二导电件33固定在防抖支架31表面。或者将第一导电件12的部分嵌入基座10，将第二导电件33的部分嵌入导电支架，均能够将第一导电件12有效地固定在基座10上，将第二导电件33有效地固定在防抖支架31上。
在一些情形下，对焦控制电路板32可以包括贴合连接至防抖支架31的主体部321和自主体部321边缘弯折延伸的两个外延部322，每个外延部322延伸至防抖支架31位于像侧312的表面、并与第二导电件33电连接。
主体部321和两个外延部322是对焦控制电路板32中的不同部分，主体部321可以设置用于实现控制功能的器件以及用于检测镜头38移动的检测元件（如霍尔元件），两个外延部322可以便于与第二导电件33之间的电连接。其中，主体部321固定在防抖支架31上，为了避让主体部321上的器件，以及实现主体部321上检测元件的检测功能，可以在防抖支架31上固定主体部321的位置设置避让孔。两个外延部322则分别自主体部321边缘向防抖支架31的像侧312弯折延伸，并且在延伸至防抖支架31位于像侧312的表面后，与第二导电件33电连接。从而将电信号向第二导电件33传输，以及从第二导电件33接收外部电路的电信号。
如图3所示，每个外延部322电连接有两个设置在防抖支架31的像侧312的第二导电件33，每个第二导电件33包括贴合连接至外延部322的平面部331和与平面部331一体设置的插接部332，每个第二导电件33的插接部332与弹性悬挂组件20插接后与靠近防抖支架31的物侧311的一个第一导电件12电连接。
需要说明的是，在防抖支架31的四周均布置有弹性悬挂组件20所包含的悬丝。而为了有效地将电信号经由弹性悬挂组件20传输至防抖控制电路板11，可以分别在每个外延部322与弹性悬挂组件20中的其中两个悬丝之间建立电连接。因此，可以将两个外延部322关于主体部321的几何中心对称设置，即两个外延部322中与主体部321连接的部分分别沿两个相反的方向延伸。从而使得每个外延部322延伸至防抖支架31位于像侧312的表面后，能够便于与弹性悬挂组件20中的其中两个相邻的悬丝电连接。
另外，镜头组件30还包括用于固定镜头38的对焦支架34和缠绕在对焦支架34上的对焦线圈35，对焦支架34经由弹片组件40连接至防抖支架31，对焦线圈35经由弹片组件40电连接至对焦控制电路板32。
如图4和图5所示，对焦线圈35整体缠绕在对焦支架34的外围，对焦线圈35在通电后与防抖支架31上设置的磁钢37配合，以便经由电磁力驱动对焦支架34以及固定在对焦支架34上的镜头38沿光轴方向移动，从而实现自动对焦。为了使得对焦控制电路板32能够向对焦线圈35传输电信号，可以通过连接防抖支架31与对焦支架34的弹片组件40实现对焦控制电路板32与对焦线圈35之间的电连接。即弹片组件40在连接防抖支架31与对焦支架34的同时，还起到电连接对焦线圈35与对焦控制电路板32的作用。
其中，弹片组件40可以包括多个独立设置的弹片41，多个弹片41分为两组，一组弹片41于防抖支架31的物侧311连接防抖支架31与对焦支架34，另一组弹片41于防抖支架31的像侧312连接防抖支架31与对焦支架34。
两组弹片41可以分别从防抖支架31的物侧311与像侧312连接对焦支架34，在确保防抖支架31与对焦支架34之间连接效果的同时，可以确保对焦支架34在对焦移动的过程中较为稳定，而不会出现位置突变的情况。如图4所示，在一些情形下，可以采用四个弹片41为一组，两组弹片41可以采取一对一的形式固定在防抖支架31的物侧311与像侧312。由于各个弹片41的位置较为对应，因此在控制对焦支架34运动的过程中，对焦支架34所受到的来自多个弹片41的作用力也就较为均衡，确保对焦支架34在运动过程中的稳定性。
另外，对焦支架34设置有分别与对焦线圈35电连接的第一接线柱341和第二接线柱342，第一接线柱341自对焦支架34位于物侧311的表面凸伸，第二接线柱342自对焦支架34位于像侧312的表面凸伸，第一接线柱341、第二接线柱342分别穿过一个弹片41并与所穿过的弹片41电连接。
第一接线柱341和第二接线柱342为对焦支架34上引出对焦线圈35的部分，方便实现对焦线圈35与位于防抖支架31上的对焦控制电路板32之间的电连接。
如图4所示，防抖支架31设置有第三导电件36，第三导电件36包括贴合连接至弹片41的连接部361和自连接部361朝向防抖支架31的像侧312弯折延伸的延伸部362，延伸部362与对焦控制电路板32电连接，与第一接线柱341电连接的弹片41经由第三导电件36电连接至对焦控制电路板32。
第三导电件36呈板状设置，并可以依据防抖支架31具体结构设置成多个不同的板状部分，各板状部分可以一体成型。为了确保第三导电件36固定在防抖支架31上的稳定性，可以将第三导电件36嵌设在防抖支架31上，即第三导电件36部分或者整体嵌入防抖支架31。连接部361和延伸部362为第三导电件36中的两个部分，连接部361的表面与弹片41贴合，以实现与弹片41之间的电连接。延伸部362用于实现与对焦控制电路板32之间的电连接，可以在延伸部362的边缘进行部分弯折，而使延伸部362的部分表面能够贴合连接至对焦控制电路板32位于防抖支架31的像侧312的外延部322，以确保第三导电件36与对焦控制电路板32之间的电信号传输效果。
在本申请的一些实施例中，每个弹片41可以包括两个贴合部411和连接两个贴合部411的悬置部412，每个弹片41的两个贴合部411分别贴合连接至防抖支架31及对焦支架34中的一者，每个弹片41的悬置部412在两个贴合部411之间弯折延伸。
贴合部411可以确保与防抖支架31及对焦支架34中的一者连接时的贴合面积，以确保与防抖支架31及对焦支架34中的一者连接时的稳定性。悬置部412是弹片41中发生弹性形变的部分，悬置部412悬置在防抖支架31与对焦支架34之间，以确保两个贴合部411分别贴合连接至防抖支架31及对焦支架34中的一者后，对焦支架34能够相对防抖支架31移动。如图4所示，每个弹片41的悬置部412在两个贴合部411之间弯折延伸，同时，可以使悬置部412在两个贴合部411之间弯折多次，以确保每个弹片41的悬置部412具有足够的形变特性，来满足对焦支架34在对焦运动时所需的形变量。
如图3所示，防抖控制电路板11可以包括贴合连接至基座10的第一部分111和自第一部分111向防抖支架31的像侧312方向弯折延伸的两个第二部分112，两个第二部分112用于与外部电路电连接。
防抖控制电路板11的第一部分111整体设置在基座10内，并连接有多个防抖线圈13，每个防抖线圈13与防抖支架31上的每个磁钢37位置一一对应。在防抖控制电路板11向每个防抖线圈13输出电信号后，可以通过电磁力驱动防抖支架31沿光轴方向的垂直方向运动，从而实现光学防抖。
另外，在镜头模组的底座60上还可以设置布置有霍尔元件的检测电路板，该检测电路板上的霍尔元件可以正对防抖支架31上的磁钢37位置布置。通过该检测电路板，可以实时检测防抖支架31的位置，从而在获知防抖支架31的准确位置后判断防抖支架31是否已经运动至对应的位置。
本申请一些实施例还提供了一种电子设备，包括上述实施例中的镜头模组。
电子设备可以但不限于为手机、平板、笔记本电脑等具备摄像功能的电子产品。
本领域的普通技术人员可以理解，上述各实施方式是实现本申请的具体实施方式，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (10)

  1. 一种镜头模组，包括：
    基座（10），设置有防抖控制电路板（11）以及第一导电件（12）；
    弹性悬挂组件（20），与所述基座（10）相连；
    镜头组件（30），经由所述弹性悬挂组件（20）连接至所述基座（10），所述镜头组件（30）包括与所述弹性悬挂组件（20）连接的防抖支架（31）和设置于所述防抖支架（31）上的对焦控制电路板（32）以及第二导电件（33），所述对焦控制电路板（32）依次经由所述第二导电件（33）、所述弹性悬挂组件（20）、所述第一导电件（12）电连接至所述防抖控制电路板（11）。
  2. 根据权利要求1所述的镜头模组，其中：所述防抖支架（31）具有沿光轴方向相对设置的物侧（311）和像侧（312），所述第一导电件（12）嵌设在所述基座（10）内并靠近所述物侧（311），所述第二导电件（33）嵌设在所述防抖支架（31）上并位于所述像侧（312）。
  3. 根据权利要求2所述的镜头模组，其中：所述对焦控制电路板（32）包括贴合连接至所述防抖支架（31）的主体部（321）和自所述主体部（321）边缘弯折延伸的两个外延部（322），每个所述外延部（322）延伸至所述防抖支架（31）位于所述像侧（312）的表面、并与所述第二导电件（33）电连接。
  4. 根据权利要求3所述的镜头模组，其中：每个所述外延部（322）电连接有两个设置在所述像侧（312）的所述第二导电件（33），每个所述第二导电件（33）包括贴合连接至所述外延部（322）的平面部（331）和与所述平面部（331）一体设置的插接部（332），每个所述第二导电件（33）的所述插接部（332）与所述弹性悬挂组件（20）插接后与靠近所述物侧（311）的一个所述第一导电件（12）电连接。
  5. 根据权利要求2所述的镜头模组，其中：所述镜头组件（30）还包括用于固定镜头（38）的对焦支架（34）和缠绕在所述对焦支架（34）上的对焦线圈（35），所述对焦支架（34）经由弹片组件（40）连接至所述防抖支架（31），所述对焦线圈（35）经由所述弹片组件（40）电连接至所述对焦控制电路板（32）。
  6. 根据权利要求5所述的镜头模组，其中：所述弹片组件（40）包括多个独立设置的弹片（41），多个所述弹片（41）分为两组，一组所述弹片（41）于所述物侧（311）连接所述防抖支架（31）与所述对焦支架（34），另一组所述弹片（41）于所述像侧（312）连接所述防抖支架（31）与所述对焦支架（34）。
  7. 根据权利要求6所述的镜头模组，其中：所述对焦支架（34）设置有分别与所述对焦线圈（35）电连接的第一接线柱（341）和第二接线柱（342），所述第一接线柱（341）自所述对焦支架（34）位于所述物侧（311）的表面凸伸，所述第二接线柱（342）自所述对焦支架（34）位于所述像侧（312）的表面凸伸，所述第一接线柱（341）、所述第二接线柱（342）分别穿过一个所述弹片（41）并与所穿过的所述弹片（41）电连接。
  8. 根据权利要求7所述的镜头模组，其中：所述防抖支架（31）设置有第三导电件（36），所述第三导电件（36）包括贴合连接至所述弹片（41）的连接部（361）和自所述连接部（361）朝向所述像侧（312）的方向弯折延伸的延伸部（362），所述延伸部（362）与所述对焦控制电路板（32）电连接，与所述第一接线柱（341）电连接的所述弹片（41）经由所述第三导电件（36）电连接至所述对焦控制电路板（32）。
  9. 根据权利要求6所述的镜头模组，其中：每个所述弹片（41）包括两个贴合部（411）和连接两个所述贴合部（411）的悬置部（412），每个所述弹片（41）的两个所述贴合部（411）分别贴合连接至所述防抖支架（31）及所述对焦支架（34）中的一者，每个所述弹片（41）的所述悬置部（412）在两个所述贴合部（411）之间弯折延伸。
  10. 一种电子设备，包括权利要求1至9任一项所述的镜头模组。
PCT/CN2022/086083 2022-03-30 2022-04-11 镜头模组及电子设备 WO2023184566A1 (zh)

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