WO2021179853A1 - 防抖马达、摄像头模组及电子设备 - Google Patents

防抖马达、摄像头模组及电子设备 Download PDF

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Publication number
WO2021179853A1
WO2021179853A1 PCT/CN2021/074785 CN2021074785W WO2021179853A1 WO 2021179853 A1 WO2021179853 A1 WO 2021179853A1 CN 2021074785 W CN2021074785 W CN 2021074785W WO 2021179853 A1 WO2021179853 A1 WO 2021179853A1
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WO
WIPO (PCT)
Prior art keywords
bearing assembly
lens carrier
driving
component
sensing component
Prior art date
Application number
PCT/CN2021/074785
Other languages
English (en)
French (fr)
Inventor
卢磊
郭利德
淡佳鹏
王昕�
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21767490.2A priority Critical patent/EP4106309A4/en
Priority to KR1020227034159A priority patent/KR20220149728A/ko
Priority to JP2022554707A priority patent/JP2023517974A/ja
Publication of WO2021179853A1 publication Critical patent/WO2021179853A1/zh
Priority to US17/941,173 priority patent/US20230007180A1/en

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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
    • H04N23/57—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
    • H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
    • 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
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B5/06—Swinging lens about normal to the optical axis
    • 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
    • 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
    • H04N23/60—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
    • H04N23/681—Motion detection
    • H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
    • 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
    • H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
    • 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
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G03B2205/0023—Movement of one or more optical elements for control of motion blur by tilting or inclining one or more optical elements with respect to the optical axis
    • 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
    • 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
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/005—Blur detection

Definitions

  • This application relates to the field of imaging technology, in particular to an anti-shake motor, camera module and electronic equipment.
  • the electronic device includes a camera module, the camera module includes an anti-shake motor and a lens, and the lens is equipped with an anti-shake motor through a reed.
  • the anti-shake angle of the lens depends on the stiffness of the reed. When the stiffness of the reed is small, a large angle of anti-shake can be performed, but the posture difference of the anti-shake motor is relatively large; When it is larger, the posture difference of the anti-shake motor is relatively small, but at this time, when a large-angle anti-shake is performed, the required motor thrust is relatively large.
  • the difference in the posture of the anti-shake motor refers to the difference in the trajectory and direction of the movement of the anti-shake motor from the position of the center of gravity of the anti-shake motor under different photographing postures of the electronic device.
  • the camera module in the prior art cannot satisfy the jitter suppression in many scenarios.
  • This application provides an anti-shake motor, camera module, and electronic equipment to realize the rotation of the lens in a large angle range, so that the camera module is suitable for more application scenarios.
  • the first aspect of the present application provides an anti-shake motor, which includes:
  • Lens holder used to install the lens
  • a sensing component, the sensing component is fixed to the lens carrier
  • the bearing assembly is installed on the base
  • a driving component, the driving component is fixed to the base
  • the driving part cooperates with the sensing part so that the lens carrier can rotate around the bearing assembly.
  • the anti-shake motor provided by the present application is provided with a bearing assembly, so that the lens carrier only needs to overcome the friction with the bearing assembly during the entire rotation process, and the lens carrier can drive the lens to rotate in a large angle range.
  • the camera module can adapt to more scenes.
  • the sensing component includes a pair of first sensing components arranged along a second direction;
  • the driving part includes a pair of first driving parts arranged along a second direction;
  • the bearing assembly includes a first bearing assembly
  • the first driving part cooperates with the first sensing part, so that the lens carrier rotates around the first bearing assembly, thereby driving the lens carrier to a plane where the lens carrier is located in the first direction and the second direction Rotate.
  • the above-mentioned first driving member cooperates with the first sensing member to make the lens carrier rotate around the first bearing assembly, thereby driving the lens carrier to rotate in the plane where the first direction and the second direction are located.
  • the lens carrier includes a pair of first side plates arranged in a second direction and arranged opposite to each other;
  • a pair of the first sensing elements are respectively fixed to the first side plate.
  • the reliability of the first sensing element is improved.
  • the base includes a bottom plate and a pair of second side plates arranged in a second direction and arranged opposite to each other; the second side plates are installed on the bottom plate;
  • a pair of the first driving members are respectively fixed to a pair of the second side plates;
  • the first bearing assembly is installed on the bottom plate.
  • the second side plate By providing the second side plate to support and fix the first driving member, the reliability of the first driving member is improved.
  • the first bearing assembly includes a bearing and a rotating shaft
  • the bearing is installed on the bottom plate
  • the rotating shaft is installed in the inner hole of the bearing;
  • the first driving member cooperates with the first sensing member to rotate the lens carrier around the rotating shaft, thereby driving the lens carrier to rotate in the plane where the first direction and the second direction are located.
  • the first driving part cooperates with the first sensing part to rotate the lens carrier around the rotation axis, thereby driving the lens carrier to rotate in the plane where the first direction and the second direction are located.
  • the sensing component includes a second sensing component
  • the driving part includes a second driving part
  • the bearing assembly includes a pair of second bearing assemblies
  • the second driving part cooperates with the second sensing part so that the lens carrier rotates around the second bearing assembly, thereby driving the lens carrier in a plane where the lens carrier is located in the first direction and the third direction Rotate.
  • the above-mentioned second driving member cooperates with the second sensing member to make the lens carrier rotate around the second bearing assembly, thereby driving the lens carrier to rotate in the plane where the first direction and the third direction are located.
  • the lens carrier includes a third side plate, and the second sensing element is fixed to the third side plate;
  • the base includes a bottom plate and a fourth side plate, the fourth side plate is connected to the bottom plate and corresponds to the third side plate;
  • the second driving member is fixed to the fourth side plate.
  • the reliability of the second sensing element is improved.
  • the fourth side plate is provided to support and fix the second driving member, the reliability of the second driving member is improved.
  • the bearing assembly includes a first bearing assembly and a second bearing assembly; the first bearing assembly is installed on the base;
  • the anti-shake motor further includes a connecting plate, and the first bearing assembly is installed on the connecting plate;
  • the second bearing assembly is installed on the connecting plate
  • the lens carrier is matched with the second bearing assembly.
  • the connecting plate includes a first body portion and a first bending portion
  • the first bending portion is connected to both ends of the first body portion
  • the first bearing assembly is installed on the first body part
  • the second bearing assembly is installed on the first bending portion.
  • the second bearing assembly includes a mounting seat and a sphere, and the sphere is mounted on the mounting seat;
  • the first bending portion is provided with a mounting hole
  • the mounting seat is installed in the mounting hole
  • the sphere is matched with the lens carrier.
  • the sphere cooperates with the lens mount so that the lens mount can be fine-tuned in all directions.
  • the lens carrier is provided with a recess
  • the sphere fits with the recess.
  • the base includes a bottom plate
  • the first body part is connected to the bottom plate.
  • the bottom plate is provided to provide support and installation space for the connecting plate.
  • the anti-shake motor further includes a limiting component
  • the limiting component is connected to the bottom plate for limiting the displacement of the connecting plate in the third direction.
  • the displacement of the connecting plate in the third direction can be restricted.
  • the connecting plate bears the weight and may be separated from the rotating shaft.
  • the limiting component can resist the connecting plate to prevent the connecting plate from falling and damaging other components.
  • the limiting component includes a second body portion, a connecting portion, and a second bending portion;
  • the connecting parts are respectively connected to the second body part and the second bending part;
  • the second body part is connected to the bottom plate
  • the second bending portion shields a part of the connecting plate, and is used to limit the displacement of the connecting plate in the third direction.
  • the connecting portion can not only play the role of connecting the second body portion and the second bending portion, but can also elevate the entire limiting component to adapt to the position of the connecting plate.
  • the bearing assembly further includes a resetting component, and the resetting component is used to apply a force to the lens carrier to reset the lens carrier.
  • a second aspect of the present application provides a camera module including a lens and the anti-shake motor described in any one of the above; the lens is mounted on the lens carrier.
  • the camera module further includes a first sensing component, a second sensing component, and a control unit;
  • the first sensing component is used to sense the rotation angle of the lens carrier
  • the second sensing component is used to feed back the rotation angle measured by the first sensing component
  • the control unit is used to control the driving force of the driving part according to the rotation angle of the first sensor part sensed by the second sensor part, so as to control the lens carrier to move in the first direction and the second direction.
  • the control unit By setting the second sensor component to feed back the rotation angle measured by the first sensor component, the control unit then controls the plane of the lens carrier in the first direction and the second direction according to the rotation angle sensed by the second sensor component. In order to precisely adjust the rotation angle of the lens mount.
  • the camera module further includes a third sensing component and a fourth sensing component
  • the third sensing component is used to sense the rotation angle of the lens carrier
  • the fourth sensing component is used to feed back the rotation angle measured by the third sensing component
  • the control unit is configured to control the driving force of the driving part according to the rotation angle of the third sensor part sensed by the fourth sensor part, so as to control the lens carrier to move in the first direction and the second direction.
  • the control unit By setting the fourth sensor component to feed back the rotation angle measured by the third sensor component, the control unit then controls the lens carrier in the first direction and the plane of the third direction according to the rotation angle sensed by the fourth sensor component. In order to precisely adjust the rotation angle of the lens mount.
  • the first sensing component and the third sensing component are both magnets
  • Both the second sensing component and the fourth sensing component are Hall elements
  • the driving component is a coil.
  • a third aspect of the present application provides an electronic device, which includes the camera module described in any one of the above.
  • the electronic device further includes a gyroscope and a processing unit;
  • the gyroscope is connected to the processing unit;
  • the processing unit is connected to the control unit;
  • the gyroscope is used to collect angular velocity information of the lens in the camera module, and send the angular velocity information to the processing unit;
  • the processing unit is configured to calculate the shake compensation information of the lens according to the angular velocity information, and send the shake compensation information to the control unit in the camera module;
  • the control unit is configured to control the driving current of the driving component according to the shake compensation information, so that the lens carrier rotates in a set angle range relative to the base.
  • a closed-loop control is formed to achieve precise adjustment of the rotation angle of the lens carrier.
  • the bearing assembly is provided so that the lens carrier only needs to overcome the friction with the bearing assembly during the entire rotation process, and the lens carrier can be realized Drive the lens to rotate in a large angle range, so that the camera module can adapt to more scenes.
  • FIG. 1 is an exploded schematic diagram of the structure of an anti-shake motor provided by an embodiment of the application
  • FIG. 2 is a front view of the structure of the lens carrier in the anti-shake motor provided by an embodiment of the application;
  • FIG. 3 is a structural diagram of one angle of the lens carrier in the anti-shake motor provided by the embodiment of the application;
  • FIG. 4 is a structural diagram from another angle of the lens carrier in the anti-shake motor provided by the embodiment of the application;
  • FIG. 5 is a structural diagram of one angle of the base in the anti-shake motor provided by an embodiment of the application.
  • FIG. 6 is a structural diagram of another angle of the base in the anti-shake motor provided by the embodiment of the application.
  • FIG. 7 is a structural diagram of another angle of the lens carrier in the anti-shake motor provided by the embodiment of the application.
  • FIG. 8 is a schematic diagram of the structure of the anti-shake motor provided by an embodiment of the application with partial components omitted from the base;
  • FIG. 9 is a perspective view of the structure of the anti-shake motor provided by an embodiment of the present application with partial components omitted from the base;
  • Fig. 10 is an enlarged view of A in Fig. 9;
  • FIG. 11 is a state diagram of the base and the connecting plate in the anti-shake motor provided by the embodiment of the application;
  • FIG. 12 is a schematic structural diagram of an anti-shake motor provided by another embodiment of the application.
  • FIG. 13 is a structural block diagram of an electronic device provided by an embodiment of the application.
  • Electronic equipment usually includes a camera module for taking pictures or video recordings.
  • the electronic device can be a mobile phone, a tablet computer or other camera equipment.
  • the camera module includes a motor and a lens
  • the motor includes a lens carrier
  • the lens is mounted on the lens carrier
  • the driving component of the motor drives the lens carrier to realize the movement of the lens.
  • the motor is usually an anti-shake motor.
  • the lens is equipped with an anti-shake motor through a reed. Limited by the stiffness of the reed, the existing camera module cannot achieve a good anti-shake effect in many scenarios.
  • the embodiments of the present application provide an anti-shake motor, a camera module, and an electronic device, which can solve the above technical problems.
  • FIG. 1 is an exploded schematic diagram of the structure of an anti-shake motor provided by an embodiment of the application.
  • an embodiment of the present application provides an anti-shake motor 1, including a lens carrier 11, a sensing component 12, a base 13, Bearing assembly 14 and driving part 15.
  • the lens carrier 11 is used for mounting a lens.
  • the sensing component 12 is fixed to the lens carrier 11, the bearing assembly 14 is installed to the base 13, and the driving component 15 is fixed to the base 13.
  • the driving component 15 cooperates with the sensing component 12 so that the lens carrier 11 can rotate around the bearing assembly 14.
  • the bearing assembly 14 may include a first bearing assembly 141 and a second bearing assembly 142.
  • the lens carrier 11 rotates around the first bearing assembly 141, the lens carrier 11 can be moved in the first direction (X) and the second direction.
  • (Y) The rotation in the plane where the lens carrier 11 is located in the first direction (X) and the anti-shake in the plane where the second direction (Y) is located.
  • the first direction (X) is the width direction of the anti-vibration motor 1
  • the second direction (Y) is the length direction of the anti-vibration motor 1.
  • the first direction (X) and the second direction (Y) may also be other directions.
  • the lens carrier 11 When the lens carrier 11 rotates around the second bearing assembly 142, the lens carrier 11 can be rotated in the first direction (X) and the third direction (Z) in the plane, thereby realizing the lens carrier 11 in the first direction Anti-shake in the plane of (X) and the third direction (Z).
  • the third direction (Z) is the height direction of the anti-shake motor 1.
  • the third direction (Z) may also be other directions.
  • the anti-shake motor 1 provided by the embodiment of the present application is provided with a bearing assembly 14, so that the lens carrier 11 only needs to overcome the friction with the bearing assembly 14 during the entire rotation process, so that the lens carrier 11 can drive the lens Rotate in a large angle range, so that the camera module can adapt to more scenes.
  • FIG. 2 is a front view of the structure of the lens carrier in the anti-shake motor provided by the embodiment of the application. As shown in FIG. The first sensing element 121 is arranged, and the first sensing element 121 may specifically be a magnet.
  • FIG. 3 is a structural diagram of an angle of the lens carrier in the anti-shake motor provided in an embodiment of the application, as shown in FIG.
  • the first sensing element 121 is fixed on one side of the lens carrier 11.
  • FIG. 4 is a structural diagram of another angle of the lens carrier in the anti-shake motor provided by the embodiment of the application. As shown in FIG. 4, another first sensor 121 is fixed on the other side of the lens carrier 11.
  • the driving component 15 includes a pair of first driving members 151 arranged along the second direction (Y), and the bearing assembly 14 includes a first bearing assembly 141.
  • the above-mentioned first driving member 151 cooperates with the first sensing member 121 to rotate the lens carrier 11 around the first bearing assembly 141, thereby driving the lens carrier 11 to move in the first direction (X) and the second direction (Y).
  • the plane rotates.
  • the first sensing element 121 may be a magnet, and the first driving element 151 may be a coil.
  • the first sensing element 121 senses the change of the current in the first driving element 151 to generate driving force to drive the lens carrier 11 to rotate.
  • the lens carrier 11 may include a pair of first side plates 111 arranged in a second direction (Y) and opposed to each other, and a pair of first sensing elements 121 They are respectively fixed to the first side plate 111.
  • the first sensing element 121 may be a magnet, and specifically may be fixed to the first side plate 111 by adhesive bonding.
  • FIG. 5 is a structural diagram of an angle of the base in the anti-shake motor provided by the embodiment of the application.
  • the base 13 may include a bottom plate 131 and a pair of oppositely arranged and arranged along the second direction (Y)
  • the second side plate 132 can be connected to the bottom plate 131, and the second side plate 132 can also be integrally formed with the bottom plate 131.
  • the aforementioned pair of first driving members 151 may be fixed to the pair of second side plates 132 respectively.
  • the bearing assembly 14 includes a first bearing assembly 141, and the first bearing assembly 141 is mounted on the bottom plate 131.
  • the first bearing assembly 141 includes a bearing 141a and a rotating shaft 141b .
  • the bearing 141a is mounted on the bottom plate 131, and the rotating shaft 141b is mounted on the inner hole of the bearing 141a.
  • the first driving member 151 cooperates with the first sensing member 121 to rotate the lens carrier 11 around the rotation axis 141b, thereby driving the lens carrier 11 to rotate in the plane where the first direction (X) and the second direction (Y) are located.
  • the anti-vibration motor 1 in this embodiment may further include a connecting plate 16, which is fixedly connected to the rotating shaft 141b, and the second bearing assembly 142 is installed on the connecting plate 16.
  • the connecting plate 16 and the rotating shaft 141b are shared
  • the connecting plate 16 can drive the second bearing assembly 142 to also rotate in this plane.
  • the second bearing assembly 142 can be installed with the lens carrier 11, the lens carrier 11 can be rotated in the first direction (X) and the second direction (Y) on the plane to realize the anti-shake effect.
  • FIG. 7 is a structural diagram from another angle of the lens carrier in the anti-shake motor provided by the embodiment of the application. As shown in FIG. 7, it is a view of the rear side of the lens carrier 11.
  • the sensing component 12 includes a second sensing element 122, and the second sensing element 122 may be a magnet.
  • the second driving member 152 may be a coil. The second sensing element 122 senses the change of the current in the second driving element 152 to generate driving force to drive the lens carrier 11 to rotate.
  • the driving component 15 includes a second driving part 152, and the second driving part 152 corresponds to the position of the second sensing part 122.
  • the bearing assembly 14 includes a pair of second bearing assemblies 142.
  • the second driving member 152 cooperates with the second sensing member 122 to rotate the lens carrier 11 around the second bearing assembly 142, thereby driving the lens carrier 11 in the first direction (X) and the third direction (Z).
  • the plane rotates.
  • the lens carrier 11 includes a third side plate 112. Both sides of the third side plate 112 can be connected to the first side plate 111 and the third side plate 112, respectively.
  • the 112 can also be integrally formed with the first side plate 111, and the second sensing element 122 is fixed to the third side plate 112.
  • the base 13 includes a bottom plate 131 and a fourth side plate 133, and the fourth side plate 133 is connected to the bottom plate 131 or integrally formed with the bottom plate 131.
  • the second driving member 152 is fixed to the fourth side plate 133, and the fourth side plate 133 corresponds to the third side plate 112, so that the second driving member 152 can cooperate with the second sensing member 122 on the third side plate 112. induction.
  • the anti-vibration motor 1 may include the connecting plate 16, and the bearing assembly 14 includes the first bearing assembly 141 and the second bearing assembly 142.
  • the first bearing assembly 141 is installed on the base 13
  • the connecting plate 16 is connected to the first bearing assembly 141
  • the second bearing assembly 142 is installed on the connecting plate 16
  • the lens carrier 11 is opposite to the second bearing assembly 142.
  • FIG. 8 is a schematic structural diagram of the base of the anti-shake motor provided by the embodiment of the application with partial components omitted.
  • the connecting plate 16 includes a first body portion 161 and a first body portion 161. ⁇ 162 ⁇ Bending part 162.
  • FIG. 9 is a perspective view of the structure of the anti-shake motor provided by an embodiment of the present application with partial components omitted from the base. 8 and 9 at the same time, the first bending portion 162 is connected to both ends of the first body portion 161, and the first bending portion 162 may also be integrally formed with the first body portion 161.
  • the first bearing assembly 141 is installed on the first body portion 161, and the second bearing assembly 142 is installed on the first bending portion 162.
  • the first body part 161 can rotate around the shaft 141b in the first bearing assembly 141, and the lens carrier 11 is mounted on the first bending part 162 through the second bearing assembly 142, so the lens carrier 11 can follow the first
  • the body part 161 rotates around the first bearing assembly 141 to realize anti-shake in the plane of the first direction (X) and the second direction (Y).
  • the lens carrier 11 can rotate around the second bearing assembly 142 to achieve anti-shake on the plane in the first direction (X) and the third direction (Z).
  • FIG. 10 is an enlarged view of A in FIG. 9.
  • the second bearing assembly 142 includes a mounting seat 142a and a ball 142b, wherein the ball 142b is mounted on the mounting seat 142a,
  • the first bending portion 162 is provided with a mounting hole, and the mounting seat 142a is mounted in the mounting hole.
  • the mounting hole may have an internal thread
  • the mounting seat 142a may have an external thread, so that the mounting seat 142a and the mounting hole are connected by a threaded connection.
  • the sphere 142b cooperates with the lens carrier 11, so that the lens carrier 11 can be fine-tuned in all directions.
  • the lens carrier 11 may be provided with a recess 111a, and the sphere 142b is matched with the recess 111a, so that the lens carrier 11 and the second bearing can be integrated. Into 142 rotation fit.
  • the lens carrier 11 may also have other structures, such as other structures such as through holes or grooves, which cooperate with the sphere 142b, which is not limited herein.
  • the base 13 may include a bottom plate 131, and the first body part 161 is connected to the bottom plate 131.
  • the first body portion 161 can be welded and fixed to the rotation shaft 141b of the first bearing assembly 141, so that the first body portion 161 can rotate in the plane of the first direction (X) and the second direction (Y) to achieve Anti-shake.
  • the anti-vibration motor 1 may further include a limiting member 17, which is installed on the bottom plate 131 to limit the displacement of the connecting plate 16 in the third direction (Z) .
  • the limiting member 17 can limit the above-mentioned connecting plate 16.
  • the angle of the anti-shake motor 1 often changes. Take the angle of FIG. 6 as an example.
  • the base 12 in FIG. 6 may be upside down.
  • the time limit component 17 will be located below the connecting plate 16.
  • the connecting plate 16 may be separated from the shaft 141b under the action of gravity and the weight of other components. At this time, the limit component 17 can resist the connecting plate 16 to prevent the connecting plate 16 from falling. , Damage other parts.
  • the limiting member 17 may include a second body portion 171, a connecting portion 172 and a second bending portion 173.
  • the connecting portion 172 is respectively connected to the second body portion 171 and the second bending portion 173, and the three can also be integrally formed.
  • the second body portion 171 is connected to the bottom plate 131, and the second bent portion 173 is shielded by a part of the connecting plate 16 to limit the displacement of the connecting plate 16 in the third direction Z.
  • the limiting component 17 may be formed by integral bending, and the second body portion 171 may be glued to the bottom plate 131.
  • the connecting portion 172 can not only serve to connect the second body portion 171 and the second bending portion 173, but also can elevate the entire limiting member 17 to adapt to the position of the connecting plate 16.
  • An embodiment of the present application also provides a camera module, including a lens and the anti-shake motor 1 provided in any embodiment of the present application.
  • the lens is mounted on the lens carrier 11 of the anti-shake motor 1 described above.
  • FIG. 11 is a state diagram of the base and the connecting plate in the anti-shake motor provided by the embodiment of the application.
  • the camera module further includes a first sensing component 3 and a second sensing component 4.
  • the first sensing component 3 can be fixed on the connecting plate 16, of course, the first sensing component 3 can also be arranged in other positions, as long as the rotation angle of the lens carrier 11 can be sensed.
  • the first sensing component 3 may be a magnet
  • the second sensing component 4 may be a Hall element.
  • the second sensing component 4 may be fixed on the bottom plate 131 of the base 13 to feed back the rotation angle measured by the first sensing component 3.
  • the second sensing component 4 can also be arranged in other positions.
  • the camera module may also include a control unit 7 for controlling the driving force of the driving part 15 according to the rotation angle of the first sensing part 3 sensed by the second sensing part 4 to control The rotation angle of the lens carrier 11 in the plane of the first direction (X) and the second direction (Y).
  • the driving component 15 is a coil. By controlling the current passing through the coil, the Lorentz force of the magnetic field can be controlled.
  • the anti-shake angle of the camera module can reach more than 4°. And as the anti-shake angle becomes larger, the friction resistance of the bearing assembly 14 does not increase, and a large-angle anti-shake can be achieved under the condition of limited holding force.
  • the camera module may further include a third sensing component 5 and a fourth sensing component 6.
  • the third sensing component 5 is used for sensing the rotation angle of the lens carrier 11, and the fourth sensing component 6 is used for feeding back the rotation angle measured by the third sensing component 5.
  • the third sensing component 5 can be a magnet, which can be fixed on the fourth side plate 133 of the base 13, referring to FIG. 5, of course, it can also be arranged in other positions.
  • the fourth sensing component 6 may be a Hall element, which may be fixed on the back of the third side plate 112 of the lens carrier 11. After the lens carrier 11 and the base 13 are assembled, the fourth side plate 133 and the third side The board 112 corresponds, and the fourth sensor component 6 can sense the third sensor component 5.
  • the control unit 7 is used for controlling the driving force of the driving part 15 according to the rotation angle of the third sensor part 5 sensed by the fourth sensor part 6, so as to control the lens carrier 11 in the first direction (X) and the third direction (Z) The rotation angle of the plane.
  • the driving part 15 may be a coil.
  • FIG. 12 is a schematic structural diagram of an anti-shake motor provided by another embodiment of the application.
  • the bearing assembly 142 further includes a reset component, specifically, the first bearing assembly 141 It may also include a first return spring 141c, which is sleeved on the bearing 141a to realize the reset of the lens carrier 11 after rotation.
  • the second bearing assembly 142 may further include a second return spring 142c, which is sleeved on the mounting seat 142a to realize the reset of the lens carrier 11 after rotation.
  • An embodiment of the present application also provides an electronic device, including the camera module provided in any embodiment of the present application.
  • FIG. 13 is a structural block diagram of an electronic device provided by an embodiment of the present application, including the camera module 100 provided by any embodiment of the present application, and the electronic device further includes a gyroscope 200 and a processing unit 300.
  • the gyroscope 200 is connected to the processing unit 300, and the processing unit 300 is connected to the control unit 7.
  • the gyroscope 200 is used to collect the angular velocity information of the lens 2 in the camera module 100 and send the angular velocity information to the processing unit 300.
  • the processing unit 300 is configured to calculate the shake compensation information of the lens 2 according to the angular velocity information, and send the shake compensation information to the control unit 7 in the camera module 100.
  • the control unit 7 is used for controlling the driving current of the driving component 15 in the anti-shake motor 1 according to the shake compensation information, so that the lens carrier 11 rotates with respect to the base 13 in a set angle range, so as to realize the anti-shake of the lens 2.
  • the second sensing component 4 can feed back the real-time position change of the first sensing component 3 by sensing the change of the magnetic field.
  • the fourth sensing component 6 can feed back the real-time position change of the third sensing component 5 by sensing the change of the magnetic field.
  • the unit 7 judges the difference between the real-time position of the lens carrier 11 and the target position according to the initial position and the above-mentioned target position according to the control algorithm, and adjusts the magnitude and direction of the current of the driving component 15 (specifically, a coil) to realize the lens carrier 11 Rotation in different directions and different angles.

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  • Engineering & Computer Science (AREA)
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  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Studio Devices (AREA)
  • Lens Barrels (AREA)
  • Telescopes (AREA)

Abstract

本申请涉及影像技术领域，尤其涉及一种防抖马达、摄像头模组及电子设备。该防抖马达，包括镜头载座、感应部件、基座、轴承组件和驱动部件。其中，镜头载座用于固定镜头，感应部件固定于镜头载座，轴承组件安装于基座，驱动部件固定于基座，驱动部件与感应部件相配合，以使镜头载座能绕轴承组件转动。本申请所提供的防抖马达、摄像头模组和电子设备中，通过设置轴承组件，使镜头载座在整个转动的过程中只要克服与轴承组件之间的摩擦力即可，可以实现镜头载座驱动镜头在大角度的范围内转动，使摄像头模组可以适应更多的场景。

Description

防抖马达、摄像头模组及电子设备
本申请要求于2020年3月10日提交中国专利局、申请号为202010163096.9、发明名称为“防抖马达、摄像头模组及电子设备”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
本申请涉及影像技术领域，尤其涉及一种防抖马达、摄像头模组及电子设备。
背景技术
随着用户对图像的品质要求越来越高，促使摄像、摄影技术不断发展，以获得更清晰、更高质量的图像。在摄像或摄影过程中，由于用户手部抖动或外界其他因素使拍摄过程中电子设备发生抖动，从而造成拍摄的图像不清晰，影响图像质量，为解决这一技术问题，具有防抖功能的电子设备应运而生。
现有技术中，电子设备包括摄像头模组，摄像头模组包括防抖马达和镜头，镜头通过簧片搭载防抖马达。现有技术中，镜头的防抖角度的大小取决于簧片的刚度，当簧片的刚度较小时，可以进行大角度的防抖，但是防抖马达的姿势差比较大；当簧片的刚度较大时，防抖马达的姿势差比较小，但此时进行大角度的防抖时，所需的马达推力就比较大。防抖马达的姿势差，指的是电子设备在不同的拍照姿势下，由防抖马达的重心位置变化，防抖马达的运动轨迹和方向上的差异。
因此，现有技术中的摄像头模组无法满足许多场景下的抖动抑制。
发明内容
本申请提供了一种防抖马达、摄像头模组及电子设备，以实现镜头在大角度范围的转动，使摄像头模组适用于更多的应用场景。
本申请第一方面提供了一种防抖马达，其中，包括：
镜头载座，用于安装镜头；
感应部件，所述感应部件固定于所述镜头载座；
基座；
轴承组件，安装于所述基座；
驱动部件，所述驱动部件固定于所述基座；
所述驱动部件与所述感应部件相配合，以使所述镜头载座能绕所述轴承组件转动。
本申请提供的防抖马达通过设置轴承组件，使镜头载座在整个转动的过程中只要克服与轴承组件之间的摩擦力即可，可以实现镜头载座驱动镜头在大角度的范围内转动，使摄像头模组可以适应更多的场景。
在一种可能的实现方式中，所述感应部件包括一对沿第二方向排布的第一感应件；
所述驱动部件包括一对沿第二方向排布的第一驱动件；
所述轴承组件包括第一轴承总成；
所述第一驱动件与所述第一感应件配合，以使所述镜头载座绕所述第一轴承总成转动，从而带动所述镜头载座在第一方向和第二方向所在的平面转动。
上述第一驱动件与第一感应件配合，以使镜头载座绕第一轴承总成转动，从而带动镜头载座在第一方向和第二方向所在的平面转动。
在一种可能的实现方式中，所述镜头载座包括一对沿第二方向排布且相对设置的第一侧板；
一对所述第一感应件分别固定于所述第一侧板。
通过设置第一侧板，以支撑和固定第一感应件，提高了第一感应件的可靠性。
在一种可能的实现方式中，所述基座包括底板和一对沿第二方向排布且相对设置的第二侧板；所述第二侧板安装于所述底板；
一对所述第一驱动件分别固定于一对所述第二侧板；
所述第一轴承总成安装于所述底板。
通过设置第二侧板，以支撑和固定第一驱动件，提高了第一驱动件的可靠性。
在一种可能的实现方式中，所述第一轴承总成包括轴承和转轴；
所述轴承安装于底板；
所述转轴安装于所述轴承的内孔；
所述第一驱动件与所述第一感应件配合，以使所述镜头载座绕所述转轴转动，从而带动所述镜头载座在第一方向和第二方向所在的平面转动。
第一驱动件与第一感应件配合，以使镜头载座绕转轴转动，从而带动镜头载座在第一方向和第二方向所在的平面转动。
在一种可能的实现方式中，所述感应部件包括第二感应件；
所述驱动部件包括第二驱动件；
所述轴承组件包括一对第二轴承总成；
所述第二驱动件与所述第二感应件配合，以使所述镜头载座绕所述第二轴承总成转动，从而带动所述镜头载座在第一方向和第三方向所在的平面转动。
上述第二驱动件与第二感应件配合，以使镜头载座绕第二轴承总成转动，从而带动镜头载座在第一方向和第三方向所在的平面转动。
在一种可能的实现方式中，所述镜头载座包括第三侧板，所述第二感应件固定于所述第三侧板；
所述基座包括底板和第四侧板，所述第四侧板连接于所述底板且与所述第三侧板对应；
所述第二驱动件固定于所述第四侧板。
通过设置第三侧板，以支撑和固定第二感应件，提高了第二感应件的可靠性。通过设置第四侧板，以支撑和固定第二驱动件，提高了第二驱动件的可靠性。
在一种可能的实现方式中，所述轴承组件包括第一轴承总成和第二轴承总成；所述第一轴承总成安装于所述基座；
所述防抖马达还包括连接板，所述第一轴承总成安装于所述连接板；
所述第二轴承总成安装于所述连接板；
所述镜头载座与所述第二轴承总成相配合。
通过设置连接板，能够实现镜头载座与第一轴承总成和第二轴承总成的联动转动配合。
在一种可能的实现方式中，所述连接板包括第一本体部和第一弯折部；
所述第一弯折部连接于所述第一本体部的两端；
所述第一轴承总成安装于所述第一本体部；
所述第二轴承总成安装于所述第一弯折部。
在一种可能的实现方式中，所述第二轴承总成包括安装座和球体，所述球体安装于所述安装座；
所述第一弯折部设置有安装孔；
安装座安装在所述安装孔内；
所述球体与所述镜头载座相配合。
上述方案中，球体与镜头载座相配合，以使镜头载座在各个方向均能实现微调。
在一种可能的实现方式中，所述镜头载座设置有凹坑；
所述球体与所述凹坑相配合。
通过设置球体与凹坑相配合，从而能够实现镜头载座与第二轴承总成的转动配合。
在一种可能的实现方式中，所述基座包括底板；
所述第一本体部连接于所述底板。
通过设置底板来为连接板提供支撑和安装空间。
在一种可能的实现方式中，所述防抖马达还包括限位部件；
所述限位部件连接于所述底板，用于限制所述连接板在第三方向的位移。
通过设置限位部件，能够限制连接板在第三方向的位移。当基座发生倒置时，连接板承重，因此可能会脱离转轴，此时，限位部件能够抵挡连接板，防止连接板掉落，损坏其他部件。
在一种可能的实现方式中，所述限位部件包括第二本体部、连接部和 第二弯折部；
所述连接部分别连接于所述第二本体部和所述第二弯折部；
所述第二本体部连接于所述底板；
所述第二弯折部遮挡于部分的所述连接板，用于限制所述连接板在第三方向的位移。
上述方案中，连接部不仅能够起到连接第二本体部和第二弯折部的作用，还能架高整个限位部件，使其与连接板的位置相适应。
在一种可能的实现方式中，所述轴承组件还包括复位部件，所述复位部件用于施力于所述镜头载座，以使所述镜头载座复位。
本申请第二方面提供了一种摄像头模组，包括镜头和上述任一项所述的防抖马达；所述镜头安装于所述镜头载座。
在一种可能的实现方式中，所述摄像头模组还包括第一传感部件、第二传感部件和控制单元；
所述第一传感部件用于感测所述镜头载座的转动角度；
所述第二传感部件用于反馈所述第一传感部件测得的转动角度；
所述控制单元用于根据所述第二传感部件感应到的所述第一传感部件的转动角度，控制所述驱动部件的驱动力，以控制所述镜头载座在第一方向和第二方向所在平面的转动角度。
通过设置第二传感部件反馈第一传感部件测得的转动角度，控制单元再根据第二传感部件感应到的转动角度，控制所述镜头载座在第一方向和第二方向所在平面的转动角度，以便精准调节镜头载座的转动角度。
在一种可能的实现方式中，所述摄像头模组还包括第三传感部件和第四传感部件；
所述第三传感部件用于感测所述镜头载座的转动角度；
所述第四传感部件用于反馈所述第三传感部件测得的转动角度；
所述控制单元用于根据所述第四传感部件感应到的所述第三传感部件的转动角度，控制所述驱动部件的驱动力，以控制所述镜头载座在第一方向和第三方向所在平面的转动角度。
通过设置第四传感部件反馈第三传感部件测得的转动角度，控制单元 再根据第四传感部件感应到的转动角度，控制所述镜头载座在第一方向和第三方向所在平面的转动角度，以便精准调节镜头载座的转动角度。
在一种可能的实现方式中，所述第一传感部件和所述第三传感部件均为磁石；
所述第二传感部件和所述第四传感部件均为霍尔元件；
所述驱动部件为线圈。
本申请第三方面提供了一种电子设备，其中，包括上述任一项所述的摄像头模组。
在一种可能的实现方式中，所述电子设备还包括陀螺仪和处理单元；
所述陀螺仪与所述处理单元连接；
所述处理单元与所述控制单元连接；
所述陀螺仪用于采集所述摄像头模组中镜头的角速度信息，并将所述角速度信息发送至所述处理单元；
所述处理单元用于根据所述角速度信息计算所述镜头的抖动补偿信息，并将所述抖动补偿信息发送给所述摄像头模组中的控制单元；
所述控制单元用于根据所述抖动补偿信息，控制所述驱动部件的驱动电流，以使所述镜头载座相对于所述基座转动设定的角度范围。
通过设置陀螺仪、处理单元和控制单元，形成闭环控制，以实现精准调节镜头载座的转动角度。
本申请提供的技术方案可以达到以下有益效果：
本申请所提供的防抖马达、摄像头模组和电子设备中，通过设置轴承组件，使镜头载座在整个转动的过程中只要克服与轴承组件之间的摩擦力即可，可以实现镜头载座驱动镜头在大角度的范围内转动，使摄像头模组可以适应更多的场景。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
附图说明
为了更清楚地说明本申请具体实施方式的技术方案，下面将对具体实 施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的防抖马达的结构分解示意图；
图2为本申请实施例提供的防抖马达中镜头载座的结构主视图；
图3为本申请实施例提供的防抖马达中镜头载座的一个角度的结构图；
图4为本申请实施例提供的防抖马达中镜头载座的另一个角度的结构图；
图5为本申请实施例提供的防抖马达中基座的一个角度的结构图；
图6为本申请实施例提供的防抖马达中基座的另一个角度的结构图；
图7为本申请实施例提供的防抖马达中镜头载座的又一个角度的结构图；
图8为本申请实施例提供的防抖马达中基座省略了局部部件的结构示意图；
图9为本申请实施例提供的防抖马达中基座省略了局部部件的结构立体图；
图10为图9的A处放大图；
图11为本申请实施例提供的防抖马达中基座与连接板配合后的状态图；
图12为本申请又一实施例提供的防抖马达的结构示意图；
图13为本申请实施例提供的电子设备的结构框图。
附图标记：
100-摄像头模组；
1-防抖马达；
11-镜头载座；
111-第一侧板；
111a-凹坑；
112-第三侧板；
12-感应部件；
121-第一感应件；
122-第二感应件；
13-基座；
131-底板；
132-第二侧板；
133-第四侧板；
14-轴承组件；
141-第一轴承总成；
141a-轴承；
141b-转轴；
141c-第一复位弹簧；
142-第二轴承总成；
142a-安装座；
142b-球体；
142c-第二复位弹簧；
15-驱动部件；
151-第一驱动件；
152-第二驱动件；
16-连接板；
161-第一本体部；
162-第一弯折部；
17-限位部件；
171-第二本体部；
172-连接部；
173-第二弯折部；
2-镜头；
3-第一传感部件；
4-第二传感部件；
5-第三传感部件；
6-第四传感部件；
7-控制单元；
200-陀螺仪；
300-处理单元。
具体实施方式
下面将结合附图对本申请的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请实施例中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
需要注意的是，本申请实施例所描述的“上”、“下”、“左”、“右”等方位词是以附图所示的角度来进行描述的，不应理解为对本申请实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。
电子设备通常包括摄像头模组，用于进行拍照或摄像。电子设备可以是手机、平板电脑或其他摄像设备。
摄像头模组包括马达和镜头，马达包括镜头载座，镜头安装于镜头载座，马达的驱动部件驱动镜头载座，以实现镜头的移动。为了防止摄像头模组在工作过程中抖动，马达通常为防抖马达，现有的摄像头模组中，镜头通过簧片搭载防抖马达。受限于簧片的刚度，现有的摄像头模组在很多 场景下无法达到较好的防抖效果。本申请实施例提供一种防抖马达、摄像头模组和电子设备，能够解决上述技术问题。
图1为本申请实施例提供的防抖马达的结构分解示意图，如图1所示，本申请实施例提供了一种防抖马达1，包括镜头载座11、感应部件12、基座13、轴承组件14和驱动部件15。
其中，镜头载座11用于安装镜头。感应部件12固定于所述镜头载座11，轴承组件14安装于所述基座13，驱动部件15固定于所述基座13。
所述驱动部件15与所述感应部件12相配合，以使所述镜头载座11能绕所述轴承组件14转动。
轴承组件14可以包括第一轴承总成141和第二轴承总成142，镜头载座11绕第一轴承总成141转动时，可以使镜头载座11在第一方向(X)和第二方向(Y)所在平面内的转动，从而实现镜头载座11在第一方向(X)和第二方向(Y)所在平面内的防抖。
本实施例中，第一方向(X)为防抖马达1的宽度方向，第二方向(Y)为防抖马达1的长度方向。在其他实施例中，根据防抖马达1的形状，第一方向(X)和第二方向(Y)也可以是其他的方向。
镜头载座11绕第二轴承总成142转动时，可以使镜头载座11在第一方向(X)和第三方向(Z)所在平面内的转动，从而实现镜头载座11在第一方向(X)和第三方向(Z)所在平面内的防抖。
本实施例中，第三方向(Z)为防抖马达1的高度方向。在其他实施例中，根据防抖马达1的形状，第三方向(Z)也可以是其他的方向。
本申请实施例提供的防抖马达1通过设置轴承组件14，使镜头载座11在整个转动的过程中只要克服与轴承组件14之间的摩擦力即可，可以实现镜头载座11驱动镜头在大角度的范围内转动，使摄像头模组可以适应更多的场景。
图2为本申请实施例提供的防抖马达中镜头载座的结构主视图，如图2所示，在一种具体的实施方式中，感应部件12可以包括一对沿第二方向(Y)排布的第一感应件121，该第一感应件121具体可以是磁石。
上述第一感应件121可以是对称地固定在镜头载座11的两侧，图3 为本申请实施例提供的防抖马达中镜头载座的一个角度的结构图，如图3所示，一个第一感应件121固定在镜头载座11的一侧。
图4为本申请实施例提供的防抖马达中镜头载座的另一个角度的结构图，如图4所示，另一个第一感应件121固定在镜头载座11的另一侧。
参照图1，驱动部件15包括一对沿第二方向(Y)排布的第一驱动件151，轴承组件14包括第一轴承总成141。
上述第一驱动件151与第一感应件121配合，以使镜头载座11绕第一轴承总成141转动，从而带动镜头载座11在第一方向(X)和第二方向(Y)所在的平面转动。
第一感应件121可以是磁石，第一驱动件151可以是线圈。第一感应件121感应第一驱动件151中电流的变化，产生驱动力，以驱动镜头载座11转动。
在一种具体的实施方式中，参照图2至图4，镜头载座11可以包括一对沿第二方向(Y)排布且相对设置的第一侧板111，一对第一感应件121分别固定于第一侧板111。该第一感应件121可以是磁石，具体可以通过胶粘接固定于第一侧板111。
图5为本申请实施例提供的防抖马达中基座的一个角度的结构图，如图5所示，基座13可以包括底板131和一对沿第二方向(Y)排布且相对设置的第二侧板132，该第二侧板132可以连接于底板131，第二侧板132也可以与底板131一体成型。上述的一对第一驱动件151可以分别固定于该一对第二侧板132。
轴承组件14包括第一轴承总成141，第一轴承总成141安装于底板131。
图6为本申请实施例提供的防抖马达中基座的另一个角度的结构图，如图6所示，在一种具体的实施方式中，第一轴承总成141包括轴承141a和转轴141b。轴承141a安装于底板131，转轴141b安装于轴承141a的内孔。
第一驱动件151与第一感应件121配合，以使镜头载座11绕转轴141b转动，从而带动镜头载座11在第一方向(X)和第二方向(Y)所在的平 面转动。
具体地，本实施例中的防抖马达1还可以包括连接板16，该连接板16与转轴141b固定连接，第二轴承总成142安装于该连接板16，当连接板16与转轴141b共同在第一方向(X)和第二方向(Y)所在的平面转动时，连接板16能够带动第二轴承总成142也在该平面转动。由于第二轴承总成142可以安装镜头载座11，进而实现镜头载座11在第一方向(X)和第二方向(Y)所在的平面转动，实现防抖效果。
图7为本申请实施例提供的防抖马达中镜头载座的又一个角度的结构图，如图7所示，为镜头载座11后侧的视图。在一种具体的实施方式中，感应部件12包括第二感应件122，该第二感应件122可以是磁石。参照图5，第二驱动件152可以是线圈。第二感应件122感应第二驱动件152中电流的变化，产生驱动力，以驱动镜头载座11转动。
如图5所示，驱动部件15包括第二驱动件152，第二驱动件152与第二感应件122的位置对应。
如图6所示，轴承组件14包括一对第二轴承总成142。
第二驱动件152与第二感应件122配合，以使镜头载座11绕第二轴承总成142转动，从而带动镜头载座11在第一方向(X)和第三方向(Z)所在的平面转动。
在一种具体的实施方式中，如图7所示，镜头载座11包括第三侧板112，该第三侧板112的两侧可以分别连接于上述第一侧板111，第三侧板112也可以与第一侧板111一体成型，第二感应件122固定于第三侧板112。
如图5所示，基座13包括底板131和第四侧板133，第四侧板133连接于底板131或者与底板131一体成型。第二驱动件152固定于第四侧板133，该第四侧板133与第三侧板112对应，以使第二驱动件152能够与第三侧板112上的第二感应件122配合发生感应。
上文已述及，防抖马达1可以包括连接板16，轴承组件14包括第一轴承总成141和第二轴承总成142。其中，第一轴承总成141安装于基座13，连接板16连接于第一轴承总成141，第二轴承总成142安装于连接板16，镜头载座11与第二轴承总成142相配合。
由此能够实现镜头载座11分别与第一轴承总成141和第二轴承总成142的转动配合。
图8为本申请实施例提供的防抖马达中基座省略了局部部件的结构示意图，如图8所示，在一种具体的实施方式中，连接板16包括第一本体部161和第一弯折部162。
图9为本申请实施例提供的防抖马达中基座省略了局部部件的结构立体图。同时参照图8和图9，第一弯折部162连接于第一本体部161的两端，第一弯折部162也可以与第一本体部161一体成型。第一轴承总成141安装于第一本体部161，第二轴承总成142安装于第一弯折部162。
上述第一本体部161能够绕第一轴承总成141中的转轴141b转动，镜头载座11通过第二轴承总成142安装于第一弯折部162，因此镜头载座11可以随着第一本体部161绕第一轴承总成141转动，以实现在第一方向(X)和第二方向(Y)所在平面的防抖。
镜头载座11能够绕第二轴承总成142转动，以实现在第一方向(X)和第三方向(Z)所在平面的防抖。
图10为图9的A处放大图，如图10所示，在一种具体的实施方式中，第二轴承总成142包括安装座142a和球体142b，其中，球体142b安装于安装座142a，第一弯折部162设置有安装孔，安装座142a安装在安装孔内。具体地，该安装孔可以具有内螺纹，安装座142a可以具有外螺纹，从而使安装座142a与安装孔通过螺纹连接的方式连接。
球体142b与镜头载座11相配合，以使镜头载座11在各个方向均能实现微调。
如图4和图7所示，在一种具体的实施方式中，镜头载座11可以设置有凹坑111a，球体142b与凹坑111a相配合，从而能够实现镜头载座11与第二轴承总成142的转动配合。当然，镜头载座11也可以是其他的结构，例如通孔或沟槽等其他结构，与球体142b配合，在此不作限定。
参照图9，基座13可以包括底板131，第一本体部161连接于底板131。具体地，第一本体部161可以与第一轴承总成141的转轴141b焊接固定，从而使第一本体部161能够在第一方向(X)和第二方向(Y)所在的平 面转动，实现防抖。
参照图6，在一种具体的实施方式中，防抖马达1还可以包括限位部件17，该限位部件17安装于底板131，用于限制连接板16在第三方向(Z)的位移。也就是说，限位部件17能够对上述连接板16起到限位作用。
在电子设备的使用过程中，该防抖马达1的角度经常会发生变化，以图6的角度为例，当电子设备为了适应不同的拍照角度，图6中的基座12可能发生倒置，此时限位部件17会位于连接板16的下方，连接板16受重力作用以及承受其他部件的重量，可能会脱离转轴141b，此时，限位部件17能够抵挡连接板16，防止连接板16掉落，损坏其他部件。
具体地，参照图9，限位部件17可以包括第二本体部171、连接部172和第二弯折部173。其中，连接部172分别连接于第二本体部171和第二弯折部173，三者也可以一体成型。第二本体部171连接于底板131，第二弯折部173遮挡于部分的连接板16，用于限制连接板16在第三方向Z的位移。
该限位部件17可以是通过一体折弯成型，第二本体部171可以通过胶粘接在底板131上。连接部172不仅能够起到连接第二本体部171和第二弯折部173的作用，还能架高整个限位部件17，使其与连接板16的位置相适应。
本申请实施例还提供了一种摄像头模组，包括镜头和本申请任意实施例提供的防抖马达1。其中，镜头安装于上述防抖马达1的镜头载座11。
图11为本申请实施例提供的防抖马达中基座与连接板配合后的状态图，在一种具体的实施方式中，摄像头模组还包括第一传感部件3、第二传感部件4。其中，第一传感部件3可以固定在连接板16上，当然，第一传感部件3也可以设置在其他位置，只要能够感测镜头载座11的转动角度即可。具体地，第一传感部件3可以是磁石，第二传感部件4可以是霍尔元件。第二传感部件4可以固定在基座13的底板131上，用于反馈第一传感部件3测得的转动角度。当然，第二传感部件4也可以设置在其他位置。
同时参照图13，摄像头模组还可以包括控制单元7，控制单元7用于 根据第二传感部件4感应到的第一传感部件3的转动角度，控制驱动部件15的驱动力，以控制镜头载座11在第一方向(X)和第二方向(Y)所在平面的转动角度。本实施例中，驱动部件15为线圈。控制线圈中通过的电流，从而能够控制磁场洛伦兹力。
本实施例中，摄像头模组的防抖角度能够达到4°以上。且随着防抖角度的变大，轴承组件14的摩擦阻力没有变大，可以在保持力有限的情况下，实现大角度防抖。
参照图5和图7，在一种具体的实现方式中，摄像头模组还可以包括第三传感部件5和第四传感部件6。其中，第三传感部件5用于感测镜头载座11的转动角度，第四传感部件6用于反馈第三传感部件5测得的转动角度。
其中，第三传感部件5可以是磁石，其可以固定在基座13的第四侧板133上，参照图5，当然也可以设置在其他位置。
第四传感部件6可以是霍尔元件，其可以固定在镜头载座11的第三侧板112的背面，当镜头载座11与基座13装配后，第四侧板133与第三侧板112对应，第四传感部件6能够感应第三传感部件5。
控制单元7用于根据第四传感部件6感应到的第三传感部件5的转动角度，控制驱动部件15的驱动力，以控制镜头载座11在第一方向(X)和第三方向(Z)所在平面的转动角度。驱动部件15可以是线圈。
图12为本申请又一实施例提供的防抖马达的结构示意图，如图12所示，在一种具体的实施方式中，轴承组件142还包括复位部件，具体地，第一轴承总成141还可以包括第一复位弹簧141c，该第一复位弹簧141c套设于轴承141a，以实现镜头载座11在转动后的复位。
第二轴承总成142还可以包括第二复位弹簧142c，该第二复位弹簧142c套设于安装座142a，以实现镜头载座11在转动后的复位。
本申请实施例还提供了一种电子设备，包括本申请任意实施例提供的摄像头模组。
图13为本申请实施例提供的电子设备的结构框图，包括本申请任意实施例提供的摄像头模组100，该电子设备还包括陀螺仪200和处理单元 300。
其中，陀螺仪200与处理单元300连接，处理单元300与控制单元7连接。
陀螺仪200用于采集摄像头模组100中镜头2的角速度信息，并将角速度信息发送至处理单元300。处理单元300用于根据角速度信息计算镜头2的抖动补偿信息，并将抖动补偿信息发送给摄像头模组100中的控制单元7。控制单元7用于根据抖动补偿信息，控制防抖马达1中驱动部件15的驱动电流，以使镜头载座11相对于基座13转动设定的角度范围，实现镜头2的防抖。
上文已述及，利用霍尔效应，第二传感部件4能够通过感知磁场的变化，反馈第一传感部件3的实时位置变化。第四传感部件6能够通过感知磁场的变化，反馈第三传感部件5的实时位置变化。电子设备在使用过程中发生抖动，陀螺仪200能够检测电子设备的抖动方向以及大小，通过信号处理，将信号分解出镜头载座11需要防抖的目标位置。
此时，通过第二传感部件4、第四传感部件6(具体为霍尔元件)检测到的第一传感部件3、第三传感部件5(具体为磁石)的初始位置，控制单元7根据该初始位置以及上述目标位置，根据控制算法判断镜头载座11的实时位置与目标位置的差异，调整驱动部件15(具体可以为线圈)的电流大小和方向，来实现镜头载座11在不同方向、不同角度的转动。
始终将镜头载座11的实时位置和目标位置进行对比，若实时位置和目标位置不一致，则持续通过控制算法调整驱动部件15的电流大小及方向；若实时位置和目标位置一直，则摄像头模组100可以进行下一步动作，从而实现了防抖的闭环控制，提高了防抖的精度。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (21)

  1. 一种防抖马达(1)，其特征在于，包括：
    镜头载座(11)，用于安装镜头(2)；
    感应部件(12)，所述感应部件(12)固定于所述镜头载座(11)；
    基座(13)；
    轴承组件(14)，安装于所述基座(13)；
    驱动部件(15)，所述驱动部件(15)固定于所述基座(13)；
    所述驱动部件(15)与所述感应部件(12)相配合，以使所述镜头载座(11)能绕所述轴承组件(14)转动。
  2. 根据权利要求1所述的防抖马达(1)，其特征在于，所述感应部件(12)包括一对沿第二方向(Y)排布的第一感应件(121)；
    所述驱动部件(15)包括一对沿第二方向(Y)排布的第一驱动件(151)；
    所述轴承组件(14)包括第一轴承总成(141)；
    所述第一驱动件(151)与所述第一感应件(121)配合，以使所述镜头载座(11)绕所述第一轴承总成(141)转动，从而带动所述镜头载座(11)在第一方向(X)和第二方向(Y)所在的平面转动。
  3. 根据权利要求2所述的防抖马达(1)，其特征在于，
    所述镜头载座(11)包括一对沿第二方向(Y)排布且相对设置的第一侧板(111)；
    一对所述第一感应件(121)分别固定于所述第一侧板(111)。
  4. 根据权利要求3所述的防抖马达(1)，其特征在于，
    所述基座(13)包括底板(131)和一对沿第二方向(Y)排布且相对设置的第二侧板(132)；所述第二侧板(132)连接于所述底板(131)；
    一对所述第一驱动件(151)分别固定于一对所述第二侧板(132)；
    所述第一轴承总成(141)安装于所述底板(131)。
  5. 根据权利要求1-4任一项所述的防抖马达(1)，其特征在于，所述第一轴承总成(141)包括轴承(141a)和转轴(141b)；
    所述轴承(141a)安装于底板(131)；
    所述转轴(141b)安装于所述轴承(141a)的内孔；
    所述第一驱动件(151)与所述第一感应件(121)配合，以使所述镜头载座(11)绕所述转轴(141b)转动，从而带动所述镜头载座(11)在第一方向(X)和第二方向(Y)所在的平面转动。
  6. 根据权利要求1-5任一项所述的防抖马达(1)，其特征在于，所述感应部件(12)包括第二感应件(122)；
    所述驱动部件(15)包括第二驱动件(152)；
    所述轴承组件(14)包括一对第二轴承总成(142)；
    所述第二驱动件(152)与所述第二感应件(122)配合，以使所述镜头载座(11)绕所述第二轴承总成(142)转动，从而带动所述镜头载座(11)在第一方向(X)和第三方向(Z)所在的平面转动。
  7. 根据权利要求6所述的防抖马达(1)，其特征在于，
    所述镜头载座(11)包括第三侧板(112)，所述第二感应件(122)固定于所述第三侧板(112)；
    所述基座(13)包括底板(131)和第四侧板(133)，所述第四侧板(133)连接于所述底板(131)且与所述第三侧板(112)对应；
    所述第二驱动件(152)固定于所述第四侧板(133)。
  8. 根据权利要求1-7任一项所述的防抖马达(1)，其特征在于，所述轴承组件(14)包括第一轴承总成(141)和第二轴承总成(142)；所述第一轴承总成(141)安装于所述基座(13)；
    所述防抖马达(1)还包括连接板(16)，所述第一轴承总成(141)安装于所述连接板(16)；
    所述第二轴承总成(142)安装于所述连接板(16)；
    所述镜头载座(11)与所述第二轴承总成(142)相配合。
  9. 根据权利要求8所述的防抖马达(1)，其特征在于，所述连接板(16)包括第一本体部(161)和第一弯折部(162)；
    所述第一弯折部(162)连接于所述第一本体部(161)的两端；
    所述第一轴承总成(141)安装于所述第一本体部(161)；
    所述第二轴承总成(142)安装于所述第一弯折部(162)。
  10. 根据权利要求9所述的防抖马达(1)，其特征在于，所述第二轴承总成(142)包括安装座(142a)和球体(142b)，所述球体(142b)安装于所述安装座(142a)；
    所述第一弯折部(162)设置有安装孔；
    安装座(142a)安装在所述安装孔内；
    所述球体(142b)与所述镜头载座(11)相配合。
  11. 根据权利要求10所述的防抖马达(1)，其特征在于，所述镜头载座(11)设置有凹坑(111a)；
    所述球体(142b)与所述凹坑(111a)相配合。
  12. 根据权利要求9所述的防抖马达(1)，其特征在于，所述基座(13)包括底板(131)；
    所述第一本体部(161)连接于所述底板(131)。
  13. 根据权利要求12所述的防抖马达(1)，其特征在于，所述防抖马达(1)还包括限位部件(17)；
    所述限位部件(17)连接于所述底板(131)，用于限制所述连接板(16)在第三方向(Z)的位移。
  14. 根据权利要求13所述的防抖马达(1)，其特征在于，所述限位部件(17)包括第二本体部(171)、连接部(172)和第二弯折部(173)；
    所述连接部(172)分别连接于所述第二本体部(171)和所述第二弯折部(173)；
    所述第二本体部(171)连接于所述底板(131)；
    所述第二弯折部(173)遮挡于部分的所述连接板(16)，用于限制所述连接板(16)在第三方向(Z)的位移。
  15. 根据权利要求1-14任一项所述的防抖马达(1)，其特征在于，所述轴承组件(142)还包括复位部件，所述复位部件用于施力于所述镜头载座(11)，以使所述镜头载座(11)复位。
  16. 一种摄像头模组，包括镜头和权利要求1-15任一项所述的防抖马达(1)；所述镜头(2)安装于所述镜头载座(11)。
  17. 根据权利要求16所述的摄像头模组，其特征在于，所述摄像头 模组还包括第一传感部件(3)、第二传感部件(4)和控制单元(7)；
    所述第一传感部件(3)用于感测所述镜头载座(11)的转动角度；
    所述第二传感部件(4)用于反馈所述第一传感部件(3)测得的转动角度；
    所述控制单元(7)用于根据所述第二传感部件(4)感应到的所述第一传感部件(3)的转动角度，控制所述驱动部件(15)的驱动力，以控制所述镜头载座(11)在第一方向(X)和第二方向(Y)所在平面的转动角度。
  18. 根据权利要求17所述的摄像头模组，其特征在于，所述摄像头模组还包括第三传感部件(5)和第四传感部件(6)；
    所述第三传感部件(5)用于感测所述镜头载座(11)的转动角度；
    所述第四传感部件(6)用于反馈所述第三传感部件(5)测得的转动角度；
    所述控制单元(7)用于根据所述第四传感部件(6)感应到的所述第三传感部件(5)的转动角度，控制所述驱动部件(15)的驱动力，以控制所述镜头载座(11)在第一方向(X)和第三方向(Z)所在平面的转动角度。
  19. 根据权利要求18所述的摄像头模组，其特征在于，所述第一传感部件(3)和所述第三传感部件(5)均为磁石；
    所述第二传感部件(4)和所述第四传感部件(6)均为霍尔元件；
    所述驱动部件(15)为线圈。
  20. 一种电子设备，其特征在于，包括权利要求16-18任一项所述的摄像头模组。
  21. 一种电子设备，其特征在于，包括权利要求19所述的摄像头模组，所述电子设备还包括陀螺仪(200)和处理单元(300)；
    所述陀螺仪(200)与所述处理单元(300)连接；
    所述处理单元(300)与所述控制单元(7)连接；
    所述陀螺仪(200)用于采集所述摄像头模组中镜头(2)的角速度信息，并将所述角速度信息发送至所述处理单元(300)；
    所述处理单元(300)用于根据所述角速度信息计算所述镜头(2)的抖动补偿信息，并将所述抖动补偿信息发送给所述摄像头模组中的控制单元(7)；
    所述控制单元(7)用于根据所述抖动补偿信息，控制所述驱动部件(15)的驱动电流，以使所述镜头载座(11)相对于所述基座(13)转动设定的角度范围。
PCT/CN2021/074785 2020-03-10 2021-02-02 防抖马达、摄像头模组及电子设备 WO2021179853A1 (zh)

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