WO2023246553A1 - 一种驱动装置及摄像模组 - Google Patents
一种驱动装置及摄像模组 Download PDFInfo
- Publication number
- WO2023246553A1 WO2023246553A1 PCT/CN2023/099792 CN2023099792W WO2023246553A1 WO 2023246553 A1 WO2023246553 A1 WO 2023246553A1 CN 2023099792 W CN2023099792 W CN 2023099792W WO 2023246553 A1 WO2023246553 A1 WO 2023246553A1
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- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- focus
- magnetic
- shake
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated 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
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—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
-
- 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
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- 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
- G03B2205/0015—Movement of one or more optical elements for control of motion blur by displacing one or more optical elements normal 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
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
Definitions
- the present application relates to the technical field of camera modules, and in particular, to a driving device and a camera module using the driving device.
- the driving device adjusts the distance between the optical lens and the photosensitive component to achieve the focusing function.
- mobile electronic devices are usually equipped with anti-shake devices to make the optical lens Translate or rotate relative to the photosensitive component to achieve anti-shake function.
- an excellent driving device and camera module are expected to meet consumers' needs for focusing function and/or anti-shake function.
- One purpose of this application is to provide a driving device and camera module that overcome the shortcomings of the existing technology, have excellent focusing function and/or anti-shake function, and are suitable for achieving clear imaging.
- a driving device including:
- Anti-shake frame the anti-shake frame is movably connected to the fixed part
- Focus carrier the focus carrier is movably connected to the anti-shake frame
- the magnet portion is provided on the anti-shake frame
- a focus coil part, the focus coil part is provided on the focus carrier and faces the magnet part;
- the anti-shake coil part is provided on the fixed part and faces the magnet part;
- a focus position sensing portion includes a focus position sensing element and a focus position sensing magnet
- the focus position sensing element is disposed on one of the focus carrier and the anti-shake frame
- the focus position sensing magnet is disposed on the other one of the focus carrier and the anti-shake frame
- the focus position sensing element and the focus position sensing magnet are disposed oppositely in the height direction.
- the focus carrier includes a carrier body and a side extension portion, the side extension portion extends outward from the carrier body, the focus position sensing element is fixed to the side extension portion, and the The focus position sensing magnet is fixed on the top of the anti-shake frame, and the focus position sensing element is located above the focus position sensing magnet.
- the magnet part includes a first magnet
- the anti-shake coil part includes a first anti-shake coil
- the first anti-shake coil is fixed on the fixed part and faces the first magnet.
- the magnet part further includes a second magnet and a third magnet, the second magnet and the third magnet are arranged oppositely on both sides of the first magnet, and the focus coil part includes A first focus coil and a second focus coil.
- the first focus coil is fixed on the focus carrier and faces the second magnet.
- the second focus coil is fixed on the focus carrier and faces the second magnet.
- Three magnets face each other.
- the anti-shake coil part also includes a second anti-shake coil and a third anti-shake coil.
- the second anti-shake coil is fixed on the fixed part and faces the second magnet.
- the third anti-shake coil Three anti-shake coils are fixed on the fixing part and face the third magnet.
- the focus position sensing part and the first magnet are located on the same side of the focus carrier, and the focus position sensing magnet is disposed above the first magnet.
- the first magnet includes a first magnetic part and a second magnetic part, the first magnetic part and the second magnetic part are stacked, and the second magnetic part is located on the first magnetic part.
- the magnetic pole direction of the focus position sensing magnet is the same as the magnetic pole direction of the first magnetic part.
- the height of the top surface of the first magnet is lower than the height of the top surfaces of the second magnet and the third magnet.
- the anti-shake frame further includes a frame body and a first magnetic conductive element fixed to the frame body. component, the first magnetic conductive component is disposed between the focus position sensing magnet and the first magnet.
- the driving device further includes a suspension portion and a support portion, the suspension portion connects the focus carrier and the anti-shake frame so that the focus carrier is suspended from the anti-shake frame , the supporting part is provided between the anti-shake frame and the fixing part, and the anti-shake frame is supported by the supporting part on the fixing part.
- a camera module including:
- optical lens the optical lens is held on the photosensitive path of the photosensitive component
- a driving device including:
- a base which includes a base body and a magnetic assembly disposed on the base body;
- an anti-shake coil part the anti-shake coil part is provided on the base body;
- the magnetic attraction component includes a first magnetic attraction part and a second magnetic attraction part.
- the first magnetic attraction part and the second magnet are arranged oppositely in the height direction.
- the second magnetic attraction part It is arranged opposite to the third magnet along the height direction.
- the first magnetic attraction part and the second magnetic attraction part are provided on the side of the base body opposite to the second magnet and the third magnet.
- the first magnetic attraction part and the second magnetic attraction part are not provided on the opposite sides of the first magnet, and the first magnetic attraction part and the second magnetic attraction part are only attracted by the second magnet and the It is attracted by the magnetic force of the third magnet but will not be attracted by the magnetic force of the first magnet.
- the first magnetic piece and the second magnetic piece extend along the length direction of the second magnet, and the first magnetic piece and the second magnetic piece are spaced apart.
- the third magnetic piece and the fourth magnetic piece extend along the length direction of the third magnet, and the third magnetic piece and the fourth magnet
- the suction pieces are arranged at intervals in the length direction of the third magnet.
- the first magnetic piece and the second magnetic piece are arranged separately along the length direction of the second magnet, and the first magnetic piece and the second magnetic piece respectively located at both ends of the second magnet; in the length direction of the third magnet, the third magnetic piece and the fourth magnetic piece are arranged separately, and the third magnetic piece and the The fourth magnetic pieces are respectively located at both ends of the third magnet.
- optical lens the optical lens is held on the photosensitive path of the photosensitive component
- Anti-shake frame the anti-shake frame is movably connected to the fixed part
- Focus carrier the focus carrier is movably connected to the anti-shake frame
- the magnet portion is provided on the anti-shake frame
- a focus coil part, the focus coil part is provided on the focus carrier and faces the magnet part;
- the focus carrier includes a carrier body and a side extension portion, the side extension portion extends outward from the carrier body, the focus position sensing element is fixed to the side extension portion, and the The focus position sensing magnet is fixed on the top of the first side part, and the focus position sensing element is located above the focus position sensing magnet.
- the driving device further includes a first elastic piece that connects the focus carrier and the anti-shake frame so that the focus carrier is suspended in the anti-shake frame.
- the first elastic piece includes a first part, a second part, a third part and a fourth part arranged in sequence in a counterclockwise direction, and the first part, the second part, the fourth part and the third part are symmetrical are arranged on both sides, and the focus position sensing element is arranged between the first part and the fourth part.
- the focus position sensing part further includes a focus circuit board that provides a conduction circuit for the focus position sensing element, and the first part, the second part, the third part and the fourth part Parts are electrically connected to the focusing circuit board respectively.
- the lateral size of the driving device is reduced.
- the second magnet and the third magnet are used to drive the anti-shake coil part and the focus coil part at the same time, which is advantageous.
- Streamline the internal structure of the drive device simplify the structure and reduce the size of the drive device.
- Figure 1 is a schematic cross-sectional view of a camera module according to an embodiment of the present application.
- Figure 4 is a schematic cross-sectional view of a driving device according to an embodiment of the present application.
- Figure 5 is another schematic cross-sectional view of a driving device according to an embodiment of the present application.
- Figure 9 is a three-dimensional exploded schematic view of the base of the driving device according to an embodiment of the present application.
- Figure 12 is a schematic top view of an array module according to an embodiment of the present application.
- the optical lens 10 includes a lens barrel and a plurality of optical lenses installed on the lens barrel.
- the optical lens 10 has an optical axis.
- the optical axis of the optical lens 10 is also the optical axis of the plurality of optical lenses.
- the photosensitive component 30 It is arranged opposite to the optical lens 10 along the optical axis direction.
- the side of the camera module 1 facing the subject is called the object side
- the side of the camera module 1 facing the photosensitive component 30 is called the image side.
- the photosensitive component 30 also includes a filter component 34.
- the filter component 34 includes a filter element 341.
- the filter component 341 is held on the photosensitive path of the photosensitive chip 31.
- the filter component 341 is disposed on the optical lens 10. Between the photosensitive chip 31 and the photosensitive chip 31, it is used to filter the incident light entering the photosensitive chip 31, and filter out stray light such as infrared light that is not required for imaging in the incident light.
- the driving device 20 of the present application can drive the optical lens 10 to move along the Z-axis direction to adjust the distance of the optical lens 10 relative to the photosensitive component 30 to achieve the focusing function; the driving device 20 can drive the optical lens 10 in the X-axis direction and/or the Y-axis. direction, so that the optical lens 10 translates relative to the photosensitive component 30 to achieve the anti-shake function.
- X The axis direction and the Y-axis direction are perpendicular to each other, and the Z-axis direction is perpendicular to the plane where the X-axis direction and the Y-axis direction are located.
- the X-axis, Y-axis and Z-axis constitute a three-dimensional coordinate system.
- the XOY plane is also called the plane where the horizontal direction lies, and the Z axis approaches the direction of the optical axis or the direction parallel to the optical axis.
- the driving device 20 includes a fixed part 21 , a pair of focus carriers 22 , an anti-shake frame 23 , a suspension part 24 , a support part 201 , a magnet part 25 , and a pair of focus coil parts 26 and an anti-shake coil part 27.
- the focus carrier 22, the anti-shake frame 23, the suspension part 24, the support part 201, the magnet part 25, the focus coil part 26 and the anti-shake coil part 27 are accommodated in the fixing part 21, and the magnet part 25 is provided on the anti-shake part.
- the focus coil part 26 is provided on the focus carrier 22 and faces the magnet part 25
- the anti-shake coil part 27 is provided on the fixing part 21 and faces the magnet part 25 .
- the photosensitive component 30 is fixed to the base 212 of the fixing part 21, and the photosensitive component 30 also becomes a relatively fixed part.
- the housing 211 and the base 212 each have a light hole, so that the imaging light can enter the optical lens 10 fixed on the driving device 20 and can exit the optical lens 10 to enter the photosensitive component 30 .
- the anti-shake frame 23 is movably connected to the fixed part 21
- the focus carrier 22 is movably connected to the anti-shake frame 23
- the optical lens 10 is fixed to the focus carrier 22 , so that when the focus carrier 22 is driven by the driving device 20 , the optical lens 10 moves with the focus carrier 22.
- the focus carrier 22 has a through hole
- the optical lens 10 is fixed in the through hole of the focus carrier 22.
- the optical lens 10 can be fixed by, for example, adhesive medium bonding or welding.
- the focus carrier 22 can also be fixed to the focus carrier 22 by integrally molding the barrel of the optical lens 10 and the focus carrier 22 , and the present application is not limited thereto.
- the focus carrier 22 is movably disposed inside the anti-shake frame 23 , and the anti-shake frame 23 is movably disposed between the focus carrier 22 and the fixed part 21 .
- the anti-shake frame 23 is Movably disposed above the base 212 , the anti-shake frame 23 has a through hole, and the focus carrier 22 is received in the through hole of the anti-shake frame 23 .
- the suspension portion 24 is installed on the anti-shake frame 23 , and the focus carrier 22 is suspended on the suspension portion 24 , so that the focus carrier 22 is suspended in the anti-shake frame 23 .
- the focus carrier 22 is suspended in the anti-shake frame 23 .
- the holding part 24 connects the focus carrier 22 and the anti-shake frame 23.
- the focus carrier 22 and the anti-shake frame 23 are respectively fixed to the suspension part 24, so that the focus carrier 22 is suspended in the anti-shake frame 23, so that when the focus carrier 22 faces When the anti-shake frame 23 moves, friction between the focus carrier 22 and the anti-shake frame 23 is avoided, and the focus carrier 22 is movably connected to the anti-shake frame 23 .
- first elastic piece 241 and the second elastic piece 242 are in a thin sheet-like structure.
- the first elastic piece 241 is connected to the top surface of the anti-shake frame 23 and the top surface of the focusing carrier 22 respectively.
- the second elastic piece 242 is connected to the anti-shake frame 242 respectively.
- the bottom surface of the frame 23 and the bottom surface of the focus carrier 22 support and limit the movement of the focus carrier 22, which not only helps to improve the structural stability of the driving device 20, but also enables the focus carrier 22 to move within a certain range of travel. move.
- the suspension portion 24 includes an outer profile fixed to the anti-shake frame 23 , an inner profile fixed to the focus carrier 22 , and a deformation portion that integrally connects the outer profile and the inner profile. .
- the deformation portion bends and extends from the outer profile to the inner profile, so as to reserve enough space for the movement of the focus carrier 22, which not only provides guarantee for the movement stroke of the focus carrier 22, but also reduces the driving force of the focus carrier 22. resistance to improve the optical focusing sensitivity of the driving device 20.
- the outer profile of the first elastic piece 241 is fixed on the top surface of the anti-shake frame 23
- the inner profile of the first elastic piece 241 is fixed on the top surface of the focusing carrier 22
- the deformed portion of the first elastic piece 241 is integrally connected to the first
- the outer profile of the elastic piece 241 and the inner profile of the first elastic piece 241; the outer profile of the second elastic piece 242 is fixed on the bottom surface of the anti-shake frame 23, and the inner profile of the second elastic piece 242 is fixed on the bottom surface of the focusing carrier 22.
- the second elastic piece 242 The deformed portion 242 integrally connects the outer profile of the second elastic piece 242 and the inner profile of the second elastic piece 242 . This arrangement enables the focus carrier 22 to be clamped between the first elastic piece 241 and the second elastic piece 242 , so that the focus carrier 22 is suspended in the anti-shake frame 23 .
- the inner and outer contours of the first elastic piece 241 can be fixedly attached to the focus carrier 22 and the anti-shake frame 23 by, but not limited to, methods such as bonding or heat riveting.
- the inner and outer contours of the second elastic piece 242 may be fixedly attached to the focus carrier 22 and the anti-shake frame 23 by, but not limited to, methods such as bonding or heat riveting.
- both the first elastic piece 241 and the second elastic piece 242 have a split structure, and both the first elastic piece 241 and the second elastic piece 242 can be used to achieve circuit conduction of the driving device 20 .
- both the first elastic piece 241 and the second elastic piece 242 have an integrated structure, and the first elastic piece 241 and the second elastic piece 242 can always maintain good consistency during the installation process, so that The entire plane of the first elastic piece 241 and the second elastic piece 242 produces less installation tolerance.
- the first elastic piece 241 connects the focus carrier 22 and the anti-shake frame 23 so that the focus carrier 22 is suspended in the anti-shake frame 23.
- the first elastic piece 241 It includes a first part 2411, a second part 2412, a third part 2413 and a fourth part 2414 arranged sequentially in the counterclockwise direction. Among them, the first part 2411, the second part 2412, the third part 2413 and the fourth part 2414 are respectively connected to the four sides of the focus carrier 22 and the anti-shake frame 23. angle to provide a more stable support for the focus carrier 22 and to provide a symmetrical restoring force for the focus carrier 22 .
- the first part 2411, the second part 2412, the third part 2413, and the fourth part 2414 are arranged axially symmetrically with respect to the X-axis direction or the Y-axis direction, that is, the first elastic piece 241 is Axisymmetric structure, in other words, the first part 2411, the second part 2412, the fourth part 2414, and the third part 2413 are symmetrically arranged on both sides.
- the axially symmetrical first spring piece 241 can The focus carrier 22 is suppressed from rotating around the Z-axis.
- the axially symmetrical first elastic piece 241 can further improve the flatness of the first elastic piece 241 to reduce the tilt tolerance of the driving device 20 and improve the assembly accuracy of the driving device 20 .
- the support part 201 is provided between the anti-shake frame 23 and the fixing part 21 , and the anti-shake frame 23 is supported by the support part 201 on the fixing part 21 .
- the support part 201 is disposed between the anti-shake frame 23 and the base 212 , and the anti-shake frame 23 is supported by the support part 201 on the base 212 , so that when the anti-shake frame 23 moves relative to the base 212 , the anti-shake frame 23 and Due to the friction between the bases 212, the anti-shake frame 23 is movably supported on the base 212.
- the support portion 201 provides a fixed size air gap between the anti-shake frame 23 and the base 212 , thereby reducing friction that may be generated when the anti-shake frame 23 moves relative to the base 212 .
- the support portion 201 can always support the anti-shake frame 23 so that the anti-shake frame 23 can move smoothly.
- the support part 201 includes at least three balls 2011.
- the at least three balls 2011 are clamped between the top surface of the base 212 and the bottom surface of the anti-shake frame 23 and move along the X-axis direction and the Y-axis direction.
- the base 212 includes a lower ball track 2122
- the anti-shake frame 23 includes an upper ball track 232.
- the upper ball track 232 is located on the bottom surface of the anti-shake frame 23, and the lower ball track 2122 is located on the top surface of the base 212. .
- the position of the upper ball track 232 corresponds to the position of the lower ball track 2122, and the extension direction of the upper ball track 232 and the extension direction of the lower ball track 2122 are perpendicular to each other, forming a "cross" shape.
- the upper ball track 232 and the lower ball track 2122 can also have a groove structure, and the balls 2011 move in the horizontal direction in the groove.
- the ball 2011 is accommodated between the upper ball track 232 and the lower ball track 2122, and is allowed to move along the upper ball track 232 and the lower ball track 2122, so that the ball 2011 is movably maintained on the base 212 and anti-shake. between the frames 23 to always support the anti-shake frame 23 . Further, when the anti-shake frame 23 is driven to move relative to the base 212, the balls 2011 move between the "cross"-shaped upper ball track 232 and the lower ball track 2122 without causing interference.
- the number of the upper ball track 232 and the lower ball track 2122 is at least three respectively, and they are respectively provided at the corners of the base 212 and the anti-shake frame 23 .
- the number of upper ball tracks 232 and lower ball tracks 2122 is four, which are respectively provided at the four corners of the base 212 and the anti-shake frame 23 .
- the number of balls 2011 is four, and the four balls 2011 are respectively disposed between the four upper ball tracks 232 and the four lower ball tracks 2122 to provide more stable support for the anti-shake frame 23 .
- the magnet part 25 is provided on the anti-shake frame 23
- the focus coil part 26 is provided on the focus carrier 22 and faces the magnet part 25
- the anti-shake coil part 27 is provided on the base of the fixing part 21 212 and opposite to the magnet part 25.
- the focus coil part 26 generates a magnetic field under current excitation and interacts with the magnetic field of the magnet part 25, and then the focus coil part 26 is driven, the focus coil part 26 moves along the Z-axis direction, and the focus carrier 22 moves with the focus coil part 26, thereby Realize the focusing function;
- the anti-shake coil part 27 generates a magnetic field under current excitation and interacts with the magnetic field of the magnet part 25, and then the magnet part 25 is driven, and the magnet part 25 moves in the X-axis direction and/or the Y-axis direction, anti-shake
- the frame 23 moves with the magnet part 25, and the focus carrier 22 suspended on the anti-shake frame 23 moves with the anti-shake frame 23, thereby realizing the anti-shake function.
- the magnet part 25 is reused.
- the magnet part 25 is not only used to interact with the focus coil part 26 in the process of realizing the focusing function, but also used to interact with the anti-shake function in the process of realizing the anti-shake function.
- the interaction of the dithering coil portion 27 enables the structural design of the driving device 20 to be intensified and miniaturized.
- the magnet part 25 is fixed to the anti-shake frame 23
- the focus coil part 26 is fixed to the side of the focus carrier 22
- the anti-shake coil part 27 is fixed to the top surface of the base 212 .
- the side of the magnet part 25 facing the focus coil part 26 is exposed and not covered by the anti-shake frame 23 , so that the distance between the focus coil part 26 and the magnet part 25 can be designed to be smaller to reduce the lateral direction of the driving device 20 Size (horizontal size); the bottom surface of the magnet part 25 facing the anti-shake coil part 27 is exposed, so that the distance between the anti-shake coil part 27 and the magnet part 25 can be designed to be smaller to reduce the size of the driving device 20 height dimension (dimension in the Z-axis direction).
- the axial direction of the first focus coil 261 and the axial direction of the second focus coil 262 are respectively perpendicular to the Z-axis direction (approximately perpendicular to Z-axis (optical axis) direction), the axis direction in which the first focus coil 261 is wound and the axis direction in which the second focus coil 262 is wound are parallel to each other.
- the first focus coil 261 and the second magnet 252 are arranged oppositely, and the second focus coil 262 and the third magnet 253 are arranged oppositely, so that the first focus coil 261 and the second focus coil 262 generate magnetic fields and the second magnet respectively under current excitation.
- the magnet 252 and the third magnet 253 interact to drive the focus coil part 26 and the focus carrier 22 to move relative to the magnet part 25 and the anti-shake frame 23 .
- the anti-shake coil part 27 includes a first anti-shake coil 271, a second anti-shake coil 272 and a third anti-shake coil 273.
- the first anti-shake coil 271 is fixed on the fixed part 21 and faces the first magnet 251.
- the second anti-shake coil 272 is fixed on the fixed part 21 and faces the second magnet 252 .
- the third anti-shake coil 273 is fixed on the fixed part 21 and faces the third magnet 253 . That is, the first anti-shake coil 271 and the first
- the magnet 251 is arranged oppositely in the height direction
- the second anti-shake coil 272 and the second magnet 252 are arranged oppositely in the height direction
- the third anti-shake coil 273 and the third magnet 253 are arranged oppositely in the height direction.
- the size of the first magnet 251 in the height direction is smaller than that of the second magnet 252 and the third magnet 253.
- the top surface of the first magnet 251 is The height is also lower than the heights of the top surfaces of the second magnet 252 and the third magnet 253 .
- the magnet part 25 may further include a fourth magnet, so that magnets are provided on all four sides of the driving device 20.
- the magnet part 25 includes four magnets. However, when all four sides of the driving device 20 are equipped with magnets, when magnets are provided, when the driving device 20 is used in an array module, the coil-magnet pair cannot be installed on the side of the camera module adjacent to the driving device 20 and the fourth magnet to avoid the fourth Magnet pair and the coil of the camera module adjacent to the fourth magnet are made of magnet pair into electromagnetic interference.
- the focus position sensing magnet 2813 cannot be replaced by the first magnet 251, the second magnet 252 or the third magnet 253 in the magnet part 25, and the focus position sensing element 2811 directly faces the third magnet along the height direction.
- the first magnet 251 , the second magnet 252 or the third magnet 253 is used, the magnetic field directions of the first magnet 251 , the second magnet 252 and the third magnet 253 are difficult to meet the working requirements of the focus position sensing element 2811 . The detailed reasons will be further explained below. .
- the focus position sensing element 2811 moves in the height direction relative to the focus position sensing magnet 2813. Moving in the direction, the focus position sensing element 2811 moves away from or close to the focus position sensing magnet 2813 in the Z-axis direction.
- the focus position sensing element 2811 senses the change in the magnetic field of the focus position sensing magnet 2813, and then obtains the focus position sensing element 2811 And the position information of the focus carrier 22 changes.
- the projection of the focus position sensing element 2811 along the height direction at least partially falls within the focus position sensing magnet 2813 .
- the projection of the focus position sensing element 2811 along the height direction falls within the focus position sensing magnet 2813, so that the focus position sensing element 2811 can obtain stronger magnetic field information.
- the focus circuit board 2812 is fixed above the side extension 222 (object-side direction), and the focus position sensing element 2811 is fixed above the focus circuit board 2812, so that the focus position sensing element 2811 is fixed above the side extension 222, and the focus position sensing magnet 2813 is located below the focus position sensing element 2811 and is fixed on the top of the anti-shake frame 23, so that the focus position sensing element 2811 and the focus position sensing magnet
- the distance between 2813 can be designed to be larger.
- the focus carrier 22 also includes a focus conductive component 223 fixed to the carrier body 221 .
- the focus conductive component 223 includes a first focus conductive component 2231 and a second focus conductive component 2232 .
- the focus conductive part 2231 and the second focus conductive part 2232 are fitted to the carrier body 221 by, for example, insert molding.
- the focus conductive component 223 is electrically connected to the focus circuit board 2812 and the focus coil part 26 .
- the first focus conductive member 2231 is electrically connected to the focus circuit board 2812 and the first focus coil 261
- the second focus conductive member 2232 is electrically connected to the focus circuit board 2812 and the second focus coil 262, so that the focus position sensing element 2811 and The first focus coil 261 and the second focus coil 262 of the focus coil part 26 are electrically connected.
- the first focus coil 261 and the second focus coil 262 are connected in series through wires.
- the first focus coil 261 is electrically connected to the second focus coil 262 to focus.
- the position sensing element 2811 can adjust the first focus coil 261 of the focus coil part 26 and the current direction and/or current magnitude of the second focus coil 262 .
- the focus position sensing part 281 and the first magnet 251 are located on the same side of the focus carrier 22 , and the focus position sensing part 281 is disposed above the first magnet 251 , so that the driving device 20 At least one side is not provided with a magnet, so that when the driving device 20 in this embodiment is used in an array module, the camera module of another array module can be disposed on a side of the driving device 20 that is not provided with the magnet portion 25 side, in this way, the magnet part 25 of the driving device 20 will not cause magnetic field interference to the adjacent camera module.
- the focus position sensing magnet 2813 is disposed above the first magnet 251. Since the height of the top surface of the first magnet 251 is lower than the top surfaces of the second magnet 252 and the third magnet 253, There is a large space above the first magnet 251 for arranging the focus position sensing magnet 2813, and the height of the driving device 20 can be reduced.
- the focus position sensing magnet 2813 is implemented as a two-pole magnet
- the first magnet 251 is implemented as a multi-pole magnet, for example, the first magnet 251 may be a four-pole magnet.
- the focus position sensing magnet 2813 has an S pole (south pole) located above and an N pole (north pole) located below.
- the magnetic pole direction of the focus position sensing magnet 2813 (NS) upward, the magnetic pole direction of the focus position sensing magnet 2813 is parallel to the height direction, so that the focus position sensing element 2811 can obtain effective magnetic field information;
- the first magnet 251 includes a first magnetic force part 2511 and a second magnetic force Part 2512, the first magnetic part 2511 and the second magnetic part 2512 are stacked along the horizontal direction (the direction perpendicular to the optical axis).
- the second magnetic part 2512 is located on the side of the first magnetic part 2511 away from the optical axis.
- the second magnetic part 2512 is located on the side of the first magnetic part 2511 away from the focus carrier 22.
- the first magnetic part 2511 is located between the focus carrier 22 and the second magnetic part 2512.
- the upper part of the first magnetic part 2511 is the S pole
- the lower part of the first magnetic part 2511 is the N pole
- the magnetic pole direction of the first magnetic part 2511 is upward
- the upper part of the second magnetic part 2512 is the N pole
- the lower part of the second magnetic part 2512 is the S pole
- the magnetic pole direction of the second magnetic part 2512 is downward, so that the first magnet 251 has an N pole and an S pole on the side facing the first anti-shake coil 271 .
- the magnetic pole direction (NS) refers to the direction in which the N pole extends to the S pole.
- the magnetic pole direction of the focus position sensing magnet 2813 is the same as the magnetic pole direction of the first magnetic part 2511 of the first magnet 251. In this way, the focus position sensing magnet 2813 can be disposed closer to the focus carrier. 22 is located inside, the focus position sensing element 2811 corresponding to the focus position sensing magnet 2813 is also arranged on the inside of the focus carrier 22 closer to the optical axis, so that the size of the driving device 20 can be designed to be smaller.
- the second magnet 252 includes a third magnetic part 2521 and a fourth magnetic part 2522.
- the third magnetic part 2521 and the fourth magnetic part 2522 are along a direction parallel to the optical axis.
- the third magnetic part 2521 is located on the side of the fourth magnetic part 2522 away from the second anti-shake coil 272, and the fourth magnetic part 2522 is located between the third magnetic part 2521 and the second anti-shake coil 272, as shown in the figure.
- the left side of the third magnetic part 2521 (the side close to the first focusing coil 261) is the N pole
- the right side of the third magnetic part 2521 (the side far away from the first focusing coil 261) is the S pole.
- the left side of the four magnetic parts 2522 (the side close to the first focusing coil 261) is the S pole, and the right side of the fourth magnetic part 2522 (the side far away from the first focusing coil 261) is the N pole, so that the second magnet 252 faces
- the second anti-shake coil 272 has N poles and S poles on one side, and the second magnet 252 also has N poles and S poles on the side facing the first focusing coil 261 .
- the third magnet 253 includes a fifth magnetic part 2531 and a sixth magnetic part 2532.
- the fifth magnetic part 2531 and the sixth magnetic part 2532 are stacked in a direction parallel to the optical axis.
- the fifth magnetic part 2531 is located in the sixth magnetic part.
- 2532 is on the side away from the third anti-shake coil 273, and the sixth magnetic part 2532 is located between the fifth magnetic part 2531 and the third anti-shake coil 273.
- the left side of the fifth magnetic part 2531 (away from The side of the second focus coil 262) is the S pole
- the right side of the fifth magnetic part 2531 (the side close to the first focus coil 261) is the N pole
- the left side of the sixth magnetic part 2532 (away from the first focus coil 261 side) is the N pole
- the right side of the sixth magnetic part 2532 (the side close to the first focusing coil 261) is the S pole
- the second magnet 252 has N pole and S pole on the side facing the second anti-shake coil 272
- the second magnet 252 also has an N pole and an S pole on the side facing the first focusing coil 261 .
- the direction of the magnetic pole of the focus position sensing magnet 2813 can also be opposite to the direction shown in FIG. 6 , and the direction of the magnetic pole of the focus position sensing magnet 2813 can be downward, that is, the direction of the focus position sensing magnet 2813
- the upper magnetic pole is the N pole
- the lower one of the focus position sensing magnet 2813 is the S pole.
- the top of the first magnetic part 2511 of the first magnet 251 is the N pole
- the bottom of the first magnetic part 2511 of the first magnet 251 is the S pole
- the top of the second magnetic part 2512 of the first magnet 251 is the S pole.
- the lower part of the second magnetic part 2512 of the first magnet 251 is the N pole
- the magnetic pole direction of the first magnetic part 2511 is downward
- the magnetic pole direction of the second magnetic part 2512 is upward.
- the magnetic pole direction of the focus position sensing magnet 2813 is the same as If the magnetic pole directions of the first magnetic portion 2511 located inside the first magnet 251 are consistent, the focus position sensing magnet 2813 can be disposed closer to the inside where the focus carrier 22 is located.
- the directions of the magnetic poles in the second magnet 252 and the third magnet 253 can also be set in opposite directions, and can be designed according to requirements.
- the anti-shake frame 23 includes a frame body 231 and a first magnetic guide 233 fixed to the frame body 231.
- the magnetic component 233 is disposed between the focus position sensing magnet 2813 and the first magnet 251.
- the first magnetic conductive component 233 is composed of a material with magnetic conductive properties, such as stainless steel (SUS430). is configured to reduce the influence of the magnetic field of the first magnet 251 on the focus position sensing element 2811.
- the first magnetic conductive member 233 is embedded in the frame body 231 through a process such as insert molding, and the focus position sensing magnet 2813 is disposed above the first magnetic conductive member 233.
- a magnet 251 is disposed below the first magnetic conductive member 233 .
- the focus position sensing magnet 2813 and the first magnet 251 can also be fixed through the first magnetic conductive member 233.
- the focus position sensing magnet 2813 is fixed above the first magnetic conductive member 233 by magnetic attraction.
- the magnet 251 is fixed below the first magnetic conducting member 233 by magnetic attraction.
- the focus position sensing magnet 2813 can be in close contact with the upper surface of the first magnetic conductive member 233
- the first magnet 251 can be in close contact with the lower surface of the first magnetic conductive member 233 .
- the anti-shake frame 23 further includes a second magnetic conductive member 234 and a third magnetic conductive member 235 that are fixed to the frame body 231 .
- the second magnetic conductive member 234 and the third magnetic conductive member 235 are fixed to the frame body 231 .
- the piece 235 may be embedded in the frame body 231 through a process such as insert molding.
- the second magnetic conducting member 234 is disposed on the side of the second magnet 252 away from the first focusing coil 261 , thereby enhancing the magnetic field intensity on the side of the second magnet 252 facing the first focusing coil 261 .
- the third magnetic conducting member 235 is disposed on the side of the third magnet 253 away from the second focusing coil 262 , thereby increasing the magnetic field intensity on the side of the third magnet 253 facing the second focusing coil 262 .
- the second magnet 252 can also be fixed to the second magnetic conductive member 234 through magnetic attraction between the second magnet 252 and the second magnetic conductive member 234 , or the second magnet 252 can be fixed to the second magnetic conductive member 234 through magnetic attraction.
- the suction effect is more firmly adsorbed On the frame body 231; the third magnet 253 can also be fixed to the third magnetic conductive member 235 through the magnet interaction with the third magnetic conductive member 235 or be more firmly adsorbed on the frame body 231.
- the second magnetic conductive member 234 and the third magnetic conductive member 235 are disposed on both sides of the first magnetic conductive member 233 .
- the second magnetic conductive member 234 and the third magnetic conductive member 235 can be connected to both sides of the first magnetic conductive member 233 respectively.
- the second magnetic conductive member 234 and the third magnetic conductive member 235 extend integrally from both ends of the first magnetic conductive member 233 , so that the first magnetic conductive member 233 , the second magnetic conductive member 234 and the third magnetic conductive member 235 It can be fixed in the frame body 231 as a component to simplify the manufacturing process.
- the anti-shake frame 23 further includes a connecting member 236 connecting the second magnetic conducting member 234 and the third magnetic conducting member 235.
- the connecting member 236 is fixed on the opposite side of the first magnetic conducting member 233. , through the arrangement of the connecting member 236, the first magnetic conductive member 233, the second magnetic conductive member 234, the third magnetic conductive member 235 and the connecting member 236 form an annular structure, so that the annular structure can be formed by insert molding, etc.
- the process is embedded in the frame body 231, which can enhance the structural strength of the frame body 231, wherein the shape of the annular structure is close to a rectangle.
- the frame body 231 includes a first side part 2311, a second side part 2312, a third side part 2313 and a fourth side part 2314 arranged sequentially in a counterclockwise direction.
- the second side part 2312 and The fourth side portion 2314 is disposed oppositely on both sides of the first side portion 2311
- the third side portion 2313 is opposite the first side portion 2311 , the first side portion 2311 , the second side portion 2312 , and the third side portion 2313 Integrated with the fourth side part 2314.
- the top surface of the first side part 2311 is lower than the top surfaces of the second side part 2312 and the fourth side part 2314.
- the focus position sensing part 281 includes a focus position sensing element 2811 and a focus position sensor that are arranged oppositely along the height direction.
- the magnet 2813 and the focus position sensing magnet 2813 are disposed on the first side 2311 .
- the first magnet 251 is fixed on the first side 2311
- the second magnet 252 is fixed on the second side 2312
- the third magnet 253 is fixed to the fourth side 2314
- the height of the top surface of the first magnet 251 is lower than the height of the top surfaces of the second magnet 252 and the third magnet 253
- the focus position sensing magnet 2813 is disposed on the first magnet 251.
- the first side part 2311 has a lower top surface, there is a certain space above the first side part 2311 suitable for disposing the focus position sensing magnet 2813 and the focus position sensing element 2811 without causing damage to the driving device 20
- the dimensions in the height direction are designed to be larger.
- the position sensing part 28 further includes an anti-shake position sensing part 282.
- the anti-shake position sensing part 282 is in contact with the magnet along the height direction.
- the anti-shake position sensing part 282 is disposed opposite to the magnet part 25.
- the anti-shake position sensing part 282 is disposed on the base 212.
- the base 212 includes a base body 2121, a magnetic component 2123, and a base conductive component 2124.
- the magnetic component 2123 and the base conductive component 2124 are disposed on the base body 2121.
- the magnetic component 2123 and the base conductive component 2124 have a certain height difference on the base body 2121 to avoid interference between the two.
- the magnetic component 2123 is arranged higher than the base conductive component 2124, which not only prevents interference between the magnetic component 2123 and the base conductive component 2124, but also prevents the magnetic component 2123 from reaching the magnet.
- the distance between the parts 25 is closer and has a better magnetic attraction effect.
- the magnetic component 2123 can be disposed lower than the base conductive component 2124, which is not limited by this application.
- the magnetic assembly 2123 is embedded in the base body 2121 through an insert molding process, and the magnetic assembly 2123 is only along the second magnet 252 and the third magnet 253 of the magnet part 25
- the height direction is relatively arranged to generate a magnetic attraction force along the height direction (Z-axis direction) between the magnetic attraction component 2123 and the second magnet 252 and the third magnet 253.
- the support part 201 is clamped by the magnetic attraction force. between the base body 2121 and the anti-shake frame 23; on the other hand, after the anti-shake frame 23 moves, the anti-shake frame 23 is maintained in a position through the action of magnetic attraction, where this position can be driven by the anti-shake frame 23 the previous initial position.
- the magnetic component 2123 can also be fixed to the base body 2121 by gluing or welding, which is not limited by this application.
- the magnetic assembly 2123 is provided on the side of the base body 2121 that is opposite to the second magnet 252 and the third magnet 253 , and that the magnetic assembly 2123 is not provided on the side of the base body 2121 that is opposite to the first magnet 251 .
- a first magnetic attraction force along the height direction is generated between the first magnetic attraction portion 21231 of the magnetic attraction component 2123 and the second magnet 252, and the second magnetic attraction portion 21232 of the magnetic attraction component 2123 and the third magnet 253 generates a second magnetic attraction along the height direction.
- the ball 2011 Under the action of the first magnetic attraction and the second magnetic attraction, the ball 2011 always remains clamped between the base body 2121 and the anti-shake frame 23, and the lower ball track 2122 is located on the base.
- the top surface of the main body 2121, that is, the ball 2011 always supports the anti-shake frame 23 through the effect of magnetic attraction.
- the first magnet 251 , the second magnet 252 and the third magnet 253 are respectively arranged on three sides of the anti-shake frame 23 .
- the first magnet 251 , the second magnet 252 and the third magnet 253 are all
- the magnetic attraction force is generated between the anti-shake frame 2123 and the magnetic attraction assembly 2123
- only three sides of the anti-shake frame 23 are affected by the magnetic attraction force, which causes the anti-shake frame 23 to tilt under the action of the asymmetric magnetic attraction force.
- only symmetrical magnetic attraction force is generated between the second magnet 252 , the third magnet 253 and the magnetic attraction component 2123 , so that the anti-shake frame 23 can remain stable under the action of the symmetrical magnetic attraction force.
- the first magnetic attraction portion 21231 and the second magnetic attraction portion 21232 are only provided on opposite sides of the base body 2121 and do not extend to the corners of the base body 2121 , that is, the first magnetic attraction portion 21231 and the second magnetic attraction portion 21231 are not extended to the corners of the base body 2121 .
- the magnetic attraction portion 21232 is only attracted by the magnetic force of the second magnet 252 and the third magnet 253 but not by the magnetic force of the first magnet 251 , thereby generating an asymmetric magnetic attraction force.
- the structural arrangement in which the first magnetic attraction portion 21231 and the second magnetic attraction portion 21232 do not extend to the corners of the base body 2121 can also provide a certain placement position for the support portion 201, making the structure of the driving device 20 more compact.
- the magnetic assembly 2123 includes an even number of magnetic parts 21233, and the even number of magnetic parts 21233 are symmetrically arranged on opposite sides of the base body 2121 to generate symmetrical magnetic attraction. And the even number of magnetic pieces 21233 have the same shape, thereby providing uniform and stable magnetic attraction, so that the anti-shake frame 23 can be smoothly attracted to the base 212 .
- the number of magnetic attraction parts 21233 is four.
- the first magnetic attraction part 21231 includes two magnetic attraction parts 21233.
- the second magnetic attraction part 21232 includes two magnetic attraction parts 21233.
- Four magnetic attraction parts 21233 is symmetrically arranged below the second magnet and the third magnet.
- the magnetic assembly 2123 has a split structure, which includes a first magnetic component 21233a, a second magnetic component 21233b, a third magnetic component 21233c and a fourth magnetic component 21233d.
- the first magnetic attraction part 21231 includes a first magnetic attraction part 21233a and a second magnetic attraction part 21233b, which are symmetrically arranged below the second magnet 252;
- the second magnetic attraction part 21232 includes a third magnetic attraction part 21233c and
- the fourth magnetic piece 21233d is symmetrically arranged below the third magnet 253.
- the third magnetic piece 21233c and the fourth magnetic piece 21233d are in the extending direction. There is a certain distance between them so that the third magnetic attraction part 21233c and the fourth magnetic attraction part 21233d do not contact each other. The magnetic attraction force between them is too large, thus affecting the driving effect of the driving device 20 .
- This arrangement enables magnetic attraction along the X-axis direction and/or along the Y-axis direction to be generated between the second magnet 252 and the third magnet 253 and the four magnetic attraction members 21233, or in other words, the second magnet 252 and the
- the magnetic attraction force with component force along the X-axis direction and/or along the Y-axis direction can be generated between the third magnet 253 and the four magnetic attraction pieces 21233.
- the side connection part 29 includes a first connection end fixed to the anti-shake frame 23, a second connection end fixed to the base 212, and an integral connection between the first connection end and The elastic deformation part of the second connection end.
- the elastic deformation part includes a plurality of interconnected bending sections extending along the X direction and a plurality of interconnected bending sections extending along the Y direction, wherein the plurality of interconnected bending sections extending along the The connected bending sections extending in the Y direction are connected to each other.
- the elastic deformation portion deforms after being stretched in the X direction and the Y direction to generate corresponding restoring forces in the X direction and the Y direction, so that the anti-shake frame 23 returns to its original position (the original position is the anti-shake frame) under the action of the side connecting portion 29 . shake the position of frame 23 before moving).
- the side connection part 29 includes a first side elastic piece 291, a second side elastic piece 292, a third side elastic piece 293 and a fourth side elastic piece. 294.
- the first side elastic piece 291 and the second side elastic piece 292 are arranged on one side of the driving device 20
- the third side elastic piece 293 and the fourth side elastic piece 294 are arranged on the other side of the driving device 20 opposite to this side. , so that the anti-shake frame 23 is acted upon by a symmetrical reset force after movement.
- the first side elastic piece 291, the second side elastic piece 292, the third side elastic piece 293, and the fourth side elastic piece 294 are arranged symmetrically with respect to the X-axis direction or the Y-axis direction.
- the first connection end of the first side elastic piece 291 is electrically connected to the first part 2411 of the first side elastic piece 241, and the second connection end of the first side elastic piece 291 is electrically connected to the base 212.
- the base conductive component 2124; the first connection end of the second side elastic piece 292 is electrically connected to the second part 2412 of the first elastic piece 241, and the second connection end of the second side elastic piece 292 is electrically connected to the base conductive component 2124 of the base 212;
- the first connecting end of the three-side elastic piece 293 is electrically connected Connected to the third portion 2413 of the first elastic piece 241, the second connection end of the third side elastic piece 293 is electrically connected to the base conductive component 2124 of the base 212; the first connection end of the fourth side elastic piece 294 is electrically connected to the first elastic piece 241 In the fourth part 2414, the second connection end of the fourth side elastic piece 294 is electrically connected to the base conductive component 2124 of the base 212 to achieve
- the side connection portion 29 can provide a more symmetrical restoring force for the anti-shake frame 23 and can also realize the electrical connection of the driving device 20 . Furthermore, the side connecting portion 29 is disposed on the side wall of the driving device 20, and the first elastic piece 241 is disposed on the top of the driving device 20 to avoid interference or short circuit between the two, thereby avoiding affecting the driving effect.
- the array module includes a multi-camera module with two or more camera modules.
- the array module can include two camera modules and can be called a dual-camera module, or the array module can Including three camera modules alone can be called a three-camera module.
- the array module can also include four, five or more camera modules. This application is not bound by this. limited.
- FIG 12 shows a top view of the array module 2 of the present application.
- the array module 2 includes a first camera module 20a and a second camera module 20b.
- the first camera module 20a includes a first photosensitive component and is held The first optical lens 22a on the photosensitive path of the first photosensitive component and the first driving device 21a for driving the first optical lens 22a to move to achieve optical performance adjustment;
- the second camera module 20b includes a second photosensitive component,
- the second optical lens 22b is held on the photosensitive path of the second photosensitive component and the second driving device 21b is used to drive the second optical lens 22b to move to achieve optical performance adjustment.
- the first camera module 20a adopts the driving device 20 mentioned above in this application as the first driving device 21a.
- the first driving device 21a is implemented as the driving device 20 mentioned in this application.
- the first camera module 20a is the driving device 20 in this application.
- the array module 2 further includes a module bracket 20c.
- the first camera module 20a and the second camera module 20b are accommodated in the module bracket 20c and fixed to the module bracket. 20c.
- the module bracket 20c includes a bracket frame part 21c and a bracket connection part 22c.
- the bracket connection part 22c is integrally connected to the support.
- the frame part 21c and the bracket frame part 21c are divided into two module accommodation areas.
- the first camera module 20a and the second camera module 20b are respectively installed in the two module accommodation areas of the module bracket 20c. .
- the first camera module 20a and the second camera module 20b are adjacent to each other, and the magnet portion 25 is not provided on the adjacent side of the first camera module 20a and the second camera module 20b.
- the first magnet 251 of the magnet part 25 is arranged on the opposite side of the adjacent side of the driving device 20 (first driving device 21a), and the second magnet 252 and the third magnet 253 are respectively arranged on the opposite side of the adjacent side of the driving device 20. adjacent to both sides.
- the second driving device 21b includes at least one driving magnet 211b and a driving coil arranged opposite to the at least one driving magnet 211b.
- the driving magnet 211b cooperates with the driving coil to drive the second optical lens 22b to move.
- at least one driving magnet 211b includes a driving magnet 211b disposed on an adjacent side of the second driving device 21b adjacent to the driving device 20, and since the adjacent side of the driving device 20 is not disposed
- the magnet part 25 and the magnet part 25 of the driving device 20 generate low or even no electromagnetic interference on the driving magnet 211b and the driving coil of the second driving device 21b.
- the driving magnet 211b of the second driving device 21b exerts no influence on the driving device.
- the magnet part 25, focus coil part 26 and anti-shake coil part 27 of 20 will not generate electromagnetic interference, and will not even generate electromagnetic interference.
- the driving device 20 (first driving device 21a) described in this application may further have the following characteristics.
- the connecting piece 236 fixed to the third side portion 2313 is provided on the side of the driving device 20 close to the second driving device 21b.
- the connecting piece 236 can be made of a material with magnetic permeability. Therefore, the connecting piece 236 can play the role of magnetic isolation and reduce electromagnetic interference between the driving device 20 and the second driving device 21b.
- the focus position sensing element 2811 and the focus circuit board 2812 are disposed above the first magnet 251, the focus position sensing element 2811, the focus circuit board
- the plate 2812 and the first magnet 251 are located in the extending direction of the first camera module 20a and the second camera module 20b. Therefore, in order to make the first part 2411, the second part 2412, the third part 2413 of the first spring piece 241 and The fourth part 2414 can provide conductive circuits for the focus position sensing element 2811 and the focus circuit board 2812 respectively.
- the first spring piece 241 is symmetrical with respect to the direction in which the first camera module 20a and the second camera module 20b extend, especially the second part.
- 2412 and the third part 2413 are symmetrical with respect to the direction in which the first camera module 20a and the second camera module 20b extend, so that the second part 2412 and the third part 2413 can be aligned with the focusing circuit board 2812 electrical connection.
- the side connection part 29 is also symmetrical with respect to the direction in which the first camera module 20a and the second camera module 20b extend, so that the first side elastic piece 291, the second side elastic piece 292, and the third side elastic piece 293 of the side connection part 29
- the fourth side elastic piece 294 can be electrically connected to the first part 2411, the second part 2412, the third part 2413 and the fourth part 2414 of the first elastic piece respectively.
- the first side elastic piece 291 and the fourth side elastic piece 254 are symmetrical with respect to the direction in which the first camera module 20a and the second camera module 20b extend.
- the second side elastic piece 292 and the third side elastic piece 253 are symmetrical with respect to the first camera module 20a and the second camera module 20a.
- the extension directions of the two camera modules 20b are symmetrical.
- the first side elastic piece 291 and the second side elastic piece 292 are arranged on the side of the driving device 20 where the second magnet 252 is arranged, and the third side elastic piece 293 and the fourth side elastic piece 294 It is provided on the side of the driving device 20 on which the third magnet 253 is provided.
- the arrangement of the side connecting portion 29 can also provide sufficient installation space for the ball 2011 and optimize the spatial structure of the driving device 20 .
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Abstract
Description
Claims (30)
- 一种驱动装置,其特征在于,包括:固定部;防抖框架,所述防抖框架被可活动地连接于所述固定部;对焦载体,所述对焦载体被可活动地连接于所述防抖框架;磁石部,所述磁石部被设置于所述防抖框架;对焦线圈部,所述对焦线圈部被设置于所述对焦载体并与所述磁石部相对;防抖线圈部,所述防抖线圈部被设置于所述固定部并与所述磁石部相对;以及对焦位置感测部,所述对焦位置感测部包括对焦位置感测元件和对焦位置感测磁石,所述对焦位置感测元件被设置于所述对焦载体和所述防抖框架中的一个,所述对焦位置感测磁石被设置于所述对焦载体和所述防抖框架中的另一个,所述对焦位置感测元件和所述对焦位置感测磁石沿高度方向相对设置。
- 根据权利要求1所述的驱动装置,其中,所述对焦载体包括载体主体和侧延部,所述侧延部自所述载体主体向外延伸,所述对焦位置感测元件被固定于所述侧延部,所述对焦位置感测磁石被固定于所述防抖框架的顶部,所述对焦位置感测元件位于所述对焦位置感测磁石的上方。
- 根据权利要求2所述的驱动装置,其中,所述磁石部包括第一磁石,所述防抖线圈部包括第一防抖线圈,所述第一防抖线圈被固定于所述固定部并与所述第一磁石相对。
- 根据权利要求3所述的驱动装置,其中,所述磁石部还包括第二磁石和第三磁石,所述第二磁石和所述第三磁石相对地设置于所述第一磁石的两侧,所述对焦线圈部包括第一对焦线圈和第二对焦线圈,所述第一对焦线圈被固定于所述对焦载体并与所述第二磁石相对,所述第二对焦线圈被固定于所述对焦载体并与所述第三磁石相对,所述防抖线圈部还包括第二防抖线圈和第三防抖线圈,所述第二防抖线圈被固定于所述固定部并与所述第二磁石相对,所述第三防抖线圈被固定于所述固定部并与所述第三磁石相对。
- 根据权利要求3或4所述的驱动装置,其中,所述对焦位置感测部与所述第一磁石位于所述对焦载体的同一侧,所述对焦位置感测磁石被设置于所述第一磁石的上方。
- 根据权利要求5所述的驱动装置,其中,所述第一磁石包括第一磁力部分和第二磁力部分,所述第一磁力部分和所述第二磁力部分层叠设置,所述第二磁力部分位于所述第一磁力部分远离所述对焦载体的一侧,所述对焦位置感测磁石的磁极方向与所述第一磁力部分的磁极方向相同。
- 根据权利要求5所述的驱动装置,其中,所述第一磁石的顶面的高度低于所述第二磁石和所述第三磁石的顶面的高度。
- 根据权利要求5所述的驱动装置,其中,所述防抖框架还包括框架主体和被固定于所述框架主体的第一导磁件,所述第一导磁件被设置于所述对焦位置感测磁石和所述第一磁石之间。
- 根据权利要求8所述的驱动装置,其中,所述驱动装置还包括悬持部和支撑部,所述悬持部连接所述对焦载体和所述防抖框架以使所述对焦载体被悬持于所述防抖框架中,所述支撑部被设置于所述防抖框架和所述固定部之间,所述防抖框架被所述支撑部支撑于所述固定部。
- 一种摄像模组,其特征在于,包括:感光组件;光学镜头,所述光学镜头被保持于所述感光组件的感光路径上;以及如权利要求1至9任一所述的驱动装置,其中,所述驱动装置适于驱动所述光学镜头移动。
- 一种驱动装置,其特征在于,包括:底座,所述底座包括底座主体和被设置于所述底座主体的磁吸组件;防抖框架,所述防抖框架被可活动地连接于所述底座;防抖线圈部,所述防抖线圈部被设置于所述底座主体;以及磁石部,所述磁石部被设置于所述防抖框架,所述磁石部与所述防抖线圈部相对设置,所述磁石部包括第一磁石、第二磁石和第三磁石,所述第二磁石与所述第三磁石相对地设置于所述第一磁石的两侧;其中,所述磁吸组件仅与所述第二磁石和所述第三磁石沿高度方向相对设置。
- 根据权利要求11所述的驱动装置,其中,所述磁吸组件包括第一磁吸部和第二磁吸部,所述第一磁吸部与所述第二磁石沿高度方向相对设置,所述第二磁吸部与所述第三磁石沿高度方向相对设置。
- 根据权利要求12所述的驱动装置,其中,所述第一磁吸部与所述第二磁石相互作用产生第一磁吸力,所述第二磁吸部与所述第三磁石相互作用产生第二磁吸力,所述第一磁吸力与所述第二磁吸力为相互对称的力。
- 根据权利要求13所述的驱动装置,其中,所述第一磁吸部与所述第二磁吸部被设置于所述底座主体的相对边,并不延伸至所述底座主体的拐角处。
- 根据权利要求14所述的驱动装置,其中,所述底座主体中与所述第二磁石和所述第三磁石相对的边设置所述第一磁吸部和所述第二磁吸部,所述底座主体中与所述第一磁石相对的边不设置所述第一磁吸部和所述第二磁吸部,所述第一磁吸部和所述第二磁吸部仅会被所述第二磁石和所述第三磁石的磁力吸引,而不会被所述第一磁石的磁力吸引。
- 根据权利要求15所述的驱动装置,其中,所述第一磁吸部包括第一磁吸件和第二磁吸件,所述第一磁吸件和所述第二磁吸件被对称地设置于所述第二磁石的下方;所述第二磁吸部包括第三磁吸件和第四磁吸件,所述第三磁吸件和所述第四磁吸件被对称地设置于所述第三磁石的下方。
- 根据权利要求16所述的驱动装置,其中,所述第一磁吸件和所述第二磁吸件沿所述第二磁石的长度方向延伸,所述第一磁吸件与所述第二磁吸件间隔地设置于所述第二磁石的长度方向上;所述第三磁吸件和所述第四磁吸件沿所述第三磁石的长度方向延伸,所述第三磁吸件与所述第四磁吸件间隔地设置于所述第三磁石的长度方向上。
- 根据权利要求17所述的驱动装置,其中,在沿所述第二磁石长度方向上,所述第一磁吸件和所述第二磁吸件分开设置,所述第一磁吸件和所述第二磁吸件分别位于所述第二磁石的两端;在沿所述第三磁石长度方向上,所述第三磁吸件和所述第四磁吸件分开设置,所述第 三磁吸件和所述第四磁吸件分别位于所述第三磁石的两端。
- 根据权利要求18所述的驱动装置,其中,所述驱动装置进一步包括对焦载体和被设置于所述对焦载体的对焦线圈部,所述对焦线圈部包括第一对焦线圈和第二对焦线圈,所述第一对焦线圈与所述第二磁石沿水平方向相对设置,所述第二对焦线圈与所述第三磁石沿水平方向相对设置;所述防抖线圈包括第一防抖线圈、第二防抖线圈和第三防抖线圈,所述第一防抖线圈与所述第一磁石沿高度方向相对设置,所述第二防抖线圈与所述第二磁石沿高度方向相对设置,所述第三防抖线圈与所述第三磁石沿高度方向相对设置。
- 一种摄像模组,其特征在于,包括:感光组件;光学镜头,所述光学镜头被保持于所述感光组件的感光路径上;以及如权利要求11至19任一所述的驱动装置,其中,所述驱动装置适于驱动所述光学镜头移动。
- 一种驱动装置,其特征在于,包括:固定部;防抖框架,所述防抖框架被可活动地连接于所述固定部;对焦载体,所述对焦载体被可活动地连接于所述防抖框架;磁石部,所述磁石部被设置于所述防抖框架;对焦线圈部,所述对焦线圈部被设置于所述对焦载体并与所述磁石部相对;防抖线圈部,所述防抖线圈部被设置于所述固定部并与所述磁石部相对;以及对焦位置感测部,所述对焦位置感测部包括沿高度方向相对设置的对焦位置感测元件和对焦位置感测磁石,其中,所述防抖框架包括框架主体,所述框架主体包括沿逆时针方向依次设置的第一侧部、第二侧部、第三侧部和第四侧部,所述第二侧部和所述第四侧部相对的设置于所述第一侧部的两侧,所述第一侧部的顶面低于所述第二侧部和所述第四侧部的顶面,所述对焦位置感测磁石被设置于所述第一侧部。
- 根据权利要求21所述的驱动装置,其中,所述对焦载体包括载体主体和侧延部,所述侧延部自所述载体主体向外延伸,所述对焦位置感测元件被固定于所述侧延部,所述对焦位 置感测磁石被固定于所述第一侧部的顶部,所述对焦位置感测元件位于所述对焦位置感测磁石的上方。
- 根据权利要求22所述的驱动装置,其中,所述磁石部包括第一磁石、第二磁石和第三磁石,所述第一磁石被固定于所述第一侧部,所述第二磁石被固定于所述第二侧部,所述第三磁石被固定于所述第四侧部,所述防抖线圈部包括第一防抖线圈、第二防抖线圈和第三防抖线圈,所述第一防抖线圈被固定于所述固定部并与所述第一磁石相对,所述第二防抖线圈被固定于所述固定部并与所述第二磁石相对,所述第三防抖线圈被固定于所述固定部并与所述第三磁石相对,所述对焦线圈部包括第一对焦线圈和第二对焦线圈,所述第一对焦线圈被固定于所述对焦载体并与所述第二磁石相对,所述第二对焦线圈被固定于所述对焦载体并与所述第三磁石相对。
- 根据权利要求23所述的驱动装置,其中,所述第一磁石的顶面的高度低于所述第二磁石和所述第三磁石的顶面的高度,所述对焦位置感测磁石被设置于所述第一磁石的上方。
- 根据权利要求23所述的驱动装置,其中,所述第一磁石包括第一磁力部分和第二磁力部分,所述第一磁力部分和所述第二磁力部分层叠设置,所述第二磁力部分位于所述第一磁力部分远离所述对焦载体的一侧,所述对焦位置感测磁石的磁极方向与所述第一磁力部分的磁极方向相同。
- 根据权利要求23所述的驱动装置,其中,所述防抖框架还包括被固定于所述第一侧部的第一导磁件,所述第一导磁件被设置于所述对焦位置感测磁石和所述第一磁石之间。
- 根据权利要求21至26任一所述的驱动装置,其中,所述驱动装置还包括第一弹片,所述第一弹片连接所述对焦载体和所述防抖框架以使所述对焦载体被悬持于所述防抖框架中,所述第一弹片包括沿逆时针方向依次设置的第一部分、第二部分、第三部分和第四部分,所述第一部分、所述第二部分和所述第四部分、所述第三部分对称的设置于两侧,所述对焦位置感测元件被设置于所述第一部分和所述第四部分之间。
- 根据权利要求27所述的驱动装置,其中,所述对焦位置感测部还包括提供对焦位置 感测元件导通电路的对焦线路板,所述第一部分、所述第二部分、所述第三部分和所述第四部分分别与所述对焦线路板电连接。
- 根据权利要求28所述的驱动装置,其中,所述驱动装置还包括支撑部,所述支撑部被设置于所述防抖框架和所述固定部之间,所述防抖框架被所述支撑部支撑于所述固定部。
- 一种摄像模组,其特征在于,包括:感光组件;光学镜头,所述光学镜头被保持于所述感光组件的感光路径上;以及如权利要求21至29任一所述的驱动装置,其中,所述驱动装置适于驱动所述光学镜头移动。
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| CN202380044009.XA CN119278632B (zh) | 2022-06-20 | 2023-06-13 | 一种驱动装置及摄像模组 |
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| CN119278632B (zh) | 2026-04-14 |
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