WO2024022228A1 - 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 PDF

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Publication number
WO2024022228A1
WO2024022228A1 PCT/CN2023/108495 CN2023108495W WO2024022228A1 WO 2024022228 A1 WO2024022228 A1 WO 2024022228A1 CN 2023108495 W CN2023108495 W CN 2023108495W WO 2024022228 A1 WO2024022228 A1 WO 2024022228A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
elastic piece
shake
driving device
focus
Prior art date
Application number
PCT/CN2023/108495
Other languages
English (en)
French (fr)
Inventor
魏青云
赵波杰
姚立锋
Original Assignee
宁波舜宇光电信息有限公司
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
Priority claimed from CN202210900198.3A external-priority patent/CN117539107A/zh
Priority claimed from CN202210898320.8A external-priority patent/CN117518679A/zh
Priority claimed from CN202210898331.6A external-priority patent/CN117539106A/zh
Priority claimed from CN202210898319.5A external-priority patent/CN117518678A/zh
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Publication of WO2024022228A1 publication Critical patent/WO2024022228A1/zh

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B3/00Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/02Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B5/00Adjustment of optical system relative to image or object surface other than for focusing
    • G03B5/06Swinging lens about normal to the optical axis

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.
  • a suspension spring wire When implementing the anti-shake function of a camera module, a suspension spring wire is often used to suspend and translate the movable part.
  • the suspension spring wire has problems such as complicated assembly processes and easy breakage, resulting in problems such as the motor not operating or the compensation effect being deteriorated.
  • an excellent driving device and camera module are expected to meet consumers' needs for focusing function and/or anti-shake function.
  • An object of the present application is to provide a driving device and camera module that overcome the shortcomings of the existing technology and have excellent focusing function and/or anti-shake function.
  • a driving device including:
  • Anti-shake frame the anti-shake frame is movably connected to the base;
  • Focus carrier the focus carrier is movably connected to the anti-shake frame
  • a first suspension portion connects the focus carrier and the anti-shake frame.
  • the first suspension portion includes a first suspension portion that is spaced apart from the object side and the image side of the focus carrier.
  • An elastic piece and a second elastic piece, the focusing carrier is suspended in the anti-shake frame under the action of the first elastic piece and the second elastic piece;
  • the side suspension portion connects the anti-shake frame and the base, wherein the side suspension portion is connected to the second elastic piece integrally, facing the object from the image side of the driving device Extending in the lateral direction, the anti-shake frame is suspended in the base under the action of the side suspension portion;
  • a driving assembly drives the focus carrier and the anti-shake frame to move.
  • the first elastic piece is disposed on the top surface of the anti-shake frame
  • the second elastic piece is disposed on the bottom surface of the anti-shake frame
  • the side suspension portion is formed from the anti-shake frame.
  • the bottom surface of the frame extends to the side surface of the anti-shake frame, and the height of the side suspension portion extending along the side surface of the anti-shake frame is lower than the top surface of the anti-shake frame.
  • the side suspension portion includes at least two side elastic pieces, and each of the side elastic pieces includes a The first connection end of the anti-shake frame, the second connection end connected to the base, and the elastic deformation portion integrally connecting the first connection end and the second connection end, the first connection end and the The second connecting end extends along the horizontal direction to form a planar structure, and the elastic deformation portion extends along the height direction to form an upright structure.
  • the planar structure and the upright structure are perpendicular to each other or approximately perpendicular to each other, the planar structure extends in the horizontal direction and is integrally connected to the second elastic piece, and the upright structure is bent from the planar structure. and extends along the height direction.
  • the side suspension portion is bent from extending in the horizontal direction to extending in the height direction.
  • the side suspension portion includes four side elastic pieces, two of the four side elastic pieces are disposed on one side of the anti-shake frame, and the four side elastic pieces are disposed on one side of the anti-shake frame.
  • the other two side elastic pieces of the side elastic pieces are symmetrically arranged on the other side of the anti-shake frame opposite to this side.
  • the planes where the elastic deformation portions of the two side elastic pieces located on the same side are coincident with each other; the planes where the elastic deformation portions of the two side elastic pieces located on opposite sides are located are parallel to each other.
  • the driving assembly includes a magnet part disposed on the anti-shake frame; a focus coil part disposed on the focus carrier and along the magnet part. Opposite in the horizontal direction; anti-shake coil part, the anti-shake coil part is arranged on the base and opposite to the magnet part in the height direction; the magnet part includes a first magnet, a second magnet and a third magnet, so The second magnet and the third magnet are disposed oppositely on both sides of the first magnet, and the elastic deformation portions of the four side spring pieces are disposed on one side of the first magnet and with the first magnet. The other side opposite this side.
  • the planes where the elastic deformation portions of the four side elastic pieces are located are respectively parallel to the length direction of the first magnet.
  • a driving device including a base, an anti-shake frame and a driving assembly, at least one lower suspension assembly, and at least one lower suspension assembly is disposed between the base and the anti-shake frame. between;
  • At least one of the lower suspension components includes a lower elastic piece and at least two side elastic pieces integrally connected to the lower elastic piece;
  • At least two of the side elastic pieces include a planar structure connecting the base and the lower elastic piece, an upright structure bent from the planar structure and extending in the height direction, and a bend connecting the planar structure and the upright structure. fold;
  • planar structures of at least two side spring pieces are located on the same side of the bent portion.
  • the lower elastic piece is disposed between at least two side elastic pieces, and the lower elastic piece includes an inner profile, two deformation portions connected to one of the inner profiles, and two deformation portions connected to the inner profile.
  • the two outer profiles of the deformation part and the planar structures of the two side elastic pieces extend in the same direction and are respectively connected to the two outer profiles.
  • the erected structure of each side elastic piece is formed along the same direction from the same side of the planar structure. Bend toward.
  • each of the side elastic pieces includes a first connection end connected to the outer profile of the lower elastic piece, a second connection end connected to the base, and the first connection end is integrally connected to the base.
  • the first connecting end and the second connecting end extend in the horizontal direction to form a planar structure, and the elastic deformation portion extends in the height direction to form an upright structure.
  • the number of the lower suspension components is at least two, and the at least two lower suspension components are symmetrically disposed on the bottom surface of the anti-shake frame, and the anti-shake frame is on the lower surface.
  • the anti-shake frame is suspended in the base under the action of the suspension assembly, and the driving assembly drives the anti-shake frame to move relative to the base.
  • the lower elastic piece includes a first lower elastic piece and a second lower elastic piece
  • at least two of the side elastic pieces include a first side elastic piece, a second side elastic piece, a third side elastic piece and a fourth side elastic piece, so The first side elastic piece, the second side elastic piece and the first lower elastic piece are connected together to form a first lower suspension assembly; the third side elastic piece, the fourth side elastic piece and the second lower elastic piece
  • the first lower suspension component and the second lower suspension component are symmetrically arranged between the anti-shake frame and the base.
  • the planar structures of the first side elastic piece and the second side elastic piece are located on the same side of the bending portion, and the first side elastic piece and the second side elastic piece are along the same side. direction bending; the planar structures of the third side elastic piece and the fourth side elastic piece are located on the same side of the bending portion, and the third side elastic piece and the fourth side elastic piece are bent in the same direction. .
  • the planar structures of the first side elastic piece, the second side elastic piece, the third side elastic piece, and the fourth side elastic piece are all located on the same side of the bending portion, so The first side elastic piece, the second side elastic piece, the third side elastic piece, and the fourth side elastic piece are all bent in the same direction.
  • a driving device including:
  • a driving device including:
  • Anti-shake frame the anti-shake frame is movably connected to the base;
  • An anti-shake coil part, the anti-shake coil part is provided on the base;
  • the magnet part is provided on the anti-shake frame, and the magnet part is opposite to the anti-shake coil part; wherein the magnet part includes a first magnet, a second magnet and a third magnet, A second magnet and the third magnet are arranged on both sides of the first magnet opposite to each other;
  • the anti-shake frame is suspended in the base under the action of the side suspension part, the side suspension part
  • the portion includes a planar structure connecting the anti-shake frame and the base, and an upright structure bent from the planar structure and extending in the height direction;
  • the width of the upright structure along the length direction of the first magnet is greater than the width of the upright structure along the length direction of the second magnet or the third magnet.
  • the side suspension portion includes at least two side elastic pieces, each of the side elastic pieces includes a first connection end connected to the anti-shake frame and a second connection end connected to the base, and an elastic deformation part that integrally connects the first connection end and the second connection end.
  • the first connection end and the second connection end extend in the horizontal direction to form a planar structure, and the elastic deformation part extends in the height direction. Extend to form an upright structure.
  • the side suspension portion is bent from extending in the horizontal direction to extending in the height direction.
  • the K value in the height direction, is smaller in the direction in which the width of the elastic deformation part is smaller, and the K value is larger in the direction in which the width of the elastic deformation part is larger.
  • the direction in which the width of the elastic deformation part is smaller is the same as the direction in which the anti-shake coil part drives the first magnet to move;
  • the anti-shake coil part drives the second magnet or the third magnet to move in the same direction.
  • the side suspension portion includes four side elastic pieces, two of the four side elastic pieces are disposed on the side where the first magnet is located, and the four side elastic pieces are disposed on the side where the first magnet is located.
  • the other two side elastic pieces among the side elastic pieces are symmetrically arranged on the other side opposite to this side.
  • the planes where the elastic deformation portions of the two side elastic pieces located on the same side are coincident with each other; the planes where the elastic deformation portions of the two side elastic pieces located on opposite sides are located are parallel to each other.
  • the driving device further includes a focus carrier and a first suspension portion.
  • the focus carrier is movably connected to the anti-shake frame.
  • the first suspension portion connects the focus carrier and the anti-shake frame.
  • the first suspension part includes first elastic pieces and second elastic pieces that are spaced apart from the object side and the image side of the focus carrier, and the side suspension part is connected to the second elastic piece.
  • the driving device further includes a focus carrier and a first suspension portion.
  • the focus carrier is movably connected to the anti-shake frame.
  • the first suspension portion connects the focus carrier and the anti-shake frame.
  • the first suspension part includes first elastic pieces and second elastic pieces spaced apart from the object side and the image side of the focus carrier, and the side suspension part is connected to the first elastic piece.
  • a driving device including:
  • Anti-shake frame the anti-shake frame is movably connected to the base;
  • Focus carrier the focus carrier is movably connected to the anti-shake frame
  • a magnet portion the magnet portion is provided on the anti-shake frame, the magnet portion includes a first magnet, a second magnet and a third magnet, the second magnet and the third magnet are provided opposite to the third magnet. both sides of the first magnet;
  • An anti-shake coil part is provided on the base and faces the magnet part;
  • the focus coil part is provided on the focus carrier and faces the magnet part, wherein the focus coil part has a straight side section parallel to the length direction of the first magnet, and is connected to A hypotenuse section is formed at a certain angle between the straight section and the length direction of the first magnet.
  • the driving device includes a first side, a second side, a third side and a fourth side arranged in sequence around its circumference, the first magnet is arranged on the first side, and the The second magnet is provided on the second side, the third magnet is provided on the fourth side, and no magnet is provided on the third side.
  • the focus coil includes a first focus coil portion located on the first side, a second focus coil portion located on the second side, a third focus coil portion located on the third side, and
  • the fourth focus coil part is located on the fourth side, the first focus coil part is within the magnetic field range of the first magnet, and the second focus coil part is within the magnetic field range of the second magnet, so The fourth focusing coil part is within the magnetic field range of the third magnet.
  • the first focus coil part includes one straight edge segment and at least two bevel edge segments connected to the straight edge segment, and the straight edge segment is connected to the first magnet. The distance is less than the distance from the two hypotenuse segments to the first magnet.
  • the length of the straight edge segment is smaller than the length of the bevel edge segment to reduce the effective reaction between the first magnet and the first focus coil part.
  • the focus coil has a symmetrical structure
  • the second focus coil part and the fourth focus coil part are arranged symmetrically
  • the first focus coil part and the third focus coil part are arranged symmetrically.
  • the anti-shake coil part includes a first anti-shake coil, a second anti-shake coil and a third anti-shake coil
  • the first anti-shake coil is fixed to the base and connected with the first The magnets are opposite
  • the second anti-shake coil is fixed on the base and faces the second magnet
  • the third anti-shake coil is fixed on the base and faces the third magnet.
  • the driving device includes a magnetic conductive member
  • the magnetic conductive member includes a first magnetic conductive member, a second magnetic conductive member and a third magnetic conductive member
  • the first magnetic conductive member is provided with the The first magnet is on a side away from the first anti-shake coil
  • the second magnetic conductive member is disposed on a side of the second magnet away from the second focus coil part
  • the third magnetic conductive member is Disposed on the side of the third magnet away from the fourth focus coil part.
  • the driving device includes a suspension part, the suspension part includes a first suspension part and a side suspension part, the first suspension part connects the focus carrier and the anti-shake frame
  • the focus carrier is suspended in the anti-shake frame through the first suspension part;
  • the side suspension part is connected between the anti-shake frame and the base, and the anti-shake frame Suspended in the base through the side suspension parts.
  • a camera module including:
  • optical lens the optical lens is held on the photosensitive path of the photosensitive component
  • a driving device the driving device is adapted to drive the optical lens to move.
  • this application has at least one of the following technical effects:
  • the extension length of the elastic deformation part of the side suspension part along the height direction can be further shortened, the side suspension part is more controllable, and the manufacturing and molding is simpler;
  • the side suspension part and the second elastic piece are closer to the base, and a simpler conductive structure can be used to achieve circuit conduction of the driving device;
  • the magnets arranged in this direction are determined according to the thickness of the elastic deformation part of the side suspension part, so that the functions of each part of the side suspension part can be more fully utilized;
  • the camera module side can place a single camera module of another array module at a close distance without interference
  • Figure 1 is a schematic cross-sectional view of a camera module according to an embodiment of the present application.
  • Figure 2 is a three-dimensional exploded schematic diagram of a driving device according to an embodiment of the present application.
  • Figure 3 is a three-dimensional exploded schematic diagram of the focusing part of the driving device according to the embodiment of the present application.
  • Figure 4 is a schematic structural diagram of the driving device with the housing removed according to the embodiment of the present application.
  • FIG. 5 is a schematic diagram of the magnet part, the focus coil part and the anti-shake coil part of the driving device according to the embodiment of the present application;
  • FIG. 6 is a top view of the magnet part and the focus coil part of the driving device according to the embodiment of the present application.
  • Figure 7 is a schematic structural diagram of the suspension portion of the driving device according to the embodiment of the present application.
  • FIG. 8A is a top view of the suspension part and the magnet part of the driving device according to the embodiment of the present application.
  • Figure 8B is an enlarged schematic view of the circular area A of Figure 8A;
  • Figure 9 is a schematic structural diagram of the lower suspension assembly of the driving device according to the embodiment of the present application.
  • Figure 10 is a bottom view of the suspension part, focus carrier, anti-shake frame, and magnet part of the driving device according to the embodiment of the present application;
  • FIG. 11 is a schematic structural diagram of the suspension part, focus carrier, anti-shake frame, base, and anti-shake circuit board of the driving device according to the embodiment of the present application.
  • the terms “setting”, “installation”, “connecting” and “connecting” should be understood in a broad sense.
  • it can be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, a contact connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • Configured as various units, circuits, or other components may be described or recited as being “configured to” perform one or more tasks. In such contexts, “configured to” is used to indicate that the unit/circuit/component is included during operation A structure (e.g., a circuit) that performs one or more tasks is implied. Additionally, “configured to” may include general-purpose structures (eg, general-purpose circuitry) manipulated by software and/or firmware to operate in a manner capable of performing the task or tasks to be solved. "Configured to” may also include adapting a manufacturing process (eg, a semiconductor fabrication facility) to fabricate a device (eg, an integrated circuit) suitable for implementing or performing one or more tasks.
  • a manufacturing process eg, a semiconductor fabrication facility
  • the term “if” may be interpreted to mean “when” or “in response to” or “in response to determining” or “in response to detecting”, depending on the context.
  • the phrase “if it is determined" or “if [the stated condition or event] is detected” may be interpreted to mean “when it is determined" or “in response to the determination... ” or “on detection of [stated condition or event]” or “in response to detection of [stated condition or event].”
  • FIGs 1 to 11 illustrate the driving device 20 and the camera module 1 of the present application.
  • the camera module 1 according to the embodiment of the present application is illustrated. It includes a photosensitive component 30, which is held on the photosensitive element.
  • An optical lens 10 is on the photosensitive path of the component 30, and a driving device 20 is used to drive the optical lens 10 to move to achieve optical performance adjustment, for example, to achieve anti-shake, focusing and other functions.
  • 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 optical axis direction includes the direction along the optical axis pointing to the image side (hereinafter,
  • the horizontal direction is the direction perpendicular to the optical axis
  • the height direction is the direction along the optical axis.
  • the optical lens 10 is fixed in the driving device 20 , and the photosensitive component 30 is fixed on the image side of the driving device 20 .
  • the optical lens 10 can then be held on the photosensitive path of the photosensitive component 30 through the driving device 20 .
  • the lens 10 is suitable to be driven by the driving device 20 to achieve functions such as anti-shake and focusing.
  • the photosensitive component 30 includes a chip circuit board 32 and a photosensitive chip 31 electrically connected to the chip circuit board 32 and a plurality of electronic components 33.
  • the photosensitive chip 31 is used to receive the external light collected by the optical lens 10 and image it through the chip circuit board. 32 is electrically connected to external mobile electronic equipment.
  • the plurality of electronic components 33 may be one or more of passive electronic devices such as resistors and capacitors, and active electronic devices such as driver chips and memory chips.
  • the photosensitive component 30 further includes a filter component 34.
  • the filter component 34 includes a filter element 341.
  • the element 341 is held on the photosensitive path of the photosensitive chip 31.
  • the filter element 341 is disposed between the optical lens 10 and the photosensitive chip 31. It is used to filter the incident light entering the photosensitive chip 31, and filter out the incident light such as Infrared light and other unwanted stray light for imaging.
  • the filter assembly 34 also includes a filter element bracket 342.
  • the filter element 341 is installed and fixed on the filter element bracket 342 and corresponds to at least the photosensitive area of the photosensitive chip 31.
  • the filter element bracket 342 has a light hole that passes through The incident light of the optical lens 10 is incident on the photosensitive chip 31 through the light hole, and the filter element 341 can be attached to the filter element holder 342 upright or inverted.
  • the filter element bracket 342 is fixed to the chip circuit board 32.
  • the photosensitive assembly 30 is fixed to the image side of the driving device 20 through the filter element bracket 342.
  • the photosensitive element 30 can also be fixed on the image side of the driving device 20 through the chip circuit board 32 .
  • the filter element bracket 342 can be pre-formed and then fixed to the chip circuit board 32 by bonding with an adhesive medium, or can be integrally formed on the chip circuit board 32 by a molding process.
  • the molding method is directly fixed to the chip circuit board 32, and the present application is not limited by this.
  • 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 Move in the X-axis direction and/or the Y-axis direction to make the optical lens 10 translate relative to the photosensitive component 30 to achieve the anti-shake function.
  • the X-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 lie.
  • the X-axis, Y-axis and Z-axis constitute a three-dimensional coordinate system.
  • the XOY plane where the axial direction and the Y-axis direction are located is also called the plane where the horizontal direction is located, and the Z-axis is close to the optical axis direction or the direction parallel to the optical axis.
  • vertical includes two situations where the angle between two objects is 90° and close to 90°
  • parallel includes two situations where the angle between two objects is 0° and close to 0°.
  • Condition That is, something approximately perpendicular can also be considered perpendicular, and something approximately parallel can also be considered parallel.
  • 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 magnet part 25, a pair of focus coil parts 26 and an anti-shake coil Department 27.
  • the focus carrier 22, the anti-shake frame 23, the suspension part 24, 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 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 fixing part 21 and faces the magnet part 25 .
  • the driving device 20 includes a focusing part and an anti-shake part.
  • the focusing part is used to realize the focusing function of the driving device 20 ; and the anti-shake part is used to realize the anti-shake function of the driving device 20 .
  • the fixing part 21 includes a shell 211 and a base 212.
  • the shell 211 and the base 212 interlock with each other to form a receiving cavity of the fixing part 21 to accommodate the focus carrier 22, anti-shake Components such as the frame 23, the suspension part 24, the magnet part 25, the focus coil part 26, and the anti-shake coil part 27 can prevent dust from entering on the one hand, and prevent each component from falling when it is impacted.
  • the base 212 includes a base body 2121 and an anti-shake coil placement position 2122 provided on the base body 2121, wherein the anti-shake coil placement position 2122 is provided on the top surface of the base body 2121 ,
  • the anti-shake coil part 27 is provided in the anti-shake coil placement position 2122 .
  • the base 212 further includes a base boss 2123.
  • the base boss 2123 is integrally provided on the base body 2121 and extends toward the object side.
  • the base boss 2123 is disposed close to a corner of the base body 2121.
  • the housing 211 and the base 212 of the fixed part 21 are both stators.
  • the driving device 20 drives the optical lens 10 to move
  • the fixed part 21 remains relatively fixed, and other components move relative to the fixed part 21.
  • 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 base 212 of 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 includes a carrier body 221 , wherein the optical lens 10 is fixed to the carrier body 221 , and the carrier body 221 has a through hole suitable for accommodating the optical lens 10 , and the optical lens 10 is fixed in the through hole of the focus carrier 22.
  • the optical lens 10 can be fixed to the focus carrier 22 by bonding or welding with an adhesive medium, or by integrating the barrel of the optical lens 10 with the focus carrier 22.
  • the molding method is fixed to the focus carrier 22, and this application is not limited by this.
  • 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 includes a frame body 231
  • the frame body 231 has a receiving cavity 2310
  • the focus carrier 22 is received in the receiving cavity 2310 of the anti-shake frame 23 .
  • the focus carrier 22 can be driven alone to move relative to the anti-shake frame 23 , or can be driven by the anti-shake frame 23 and move together with the anti-shake frame 23 . Further, by driving the focus carrier 22 and/or the anti-shake frame 23 to move, the optical lens 10 is driven to move, so as to realize the focusing and/or anti-shake functions.
  • the focus carrier 22 can drive the optical lens 10 to move along the optical axis direction to achieve the focusing function; when the anti-shake frame 23 When driven to move relative to the base 212, the anti-shake frame 23 can drive the focus carrier 22 and the optical lens 10 to move in a plane perpendicular to the optical axis to achieve the anti-shake function.
  • the magnet part 25 , the focus coil part 26 and the anti-shake coil part 27 form a driving component of the driving device 20 , and the driving component can drive the focus carrier 22 and the anti-shake component. Frame 23 movement.
  • 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 212 of the fixing part 21 and faces the magnet part 25 .
  • 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 . That is, the focus coil part 26 and the magnet part 25 are arranged opposite to each other in the horizontal direction, and the anti-shake coil part 27 and the magnet part 25 are arranged opposite to each other in the height direction.
  • the focus carrier 22 further includes a focus coil placement position 223 disposed on the side wall of the carrier body 221 , and the focus coil portion 26 is disposed at the focus coil placement position 223 .
  • the focus coil part 26 can be directly wound around the side wall of the focus carrier 22 , or can be pre-formed and installed on the side wall of the focus carrier 22 , which is not limited in this application.
  • the focus coil part 26 can be a hollow surrounding coil, that is, the focus coil part 26 is a single coil and is arranged on the side wall of the focus carrier 22 in a surrounding manner; the focus coil part 26 can also be hollow. There is at least one planar coil, that is, the focus coil portion 26 is arranged on the side wall of the focus carrier 22 in a planar manner.
  • the focus coil placement position 223 is formed by an inwardly concave groove on the side wall of the carrier body 221 , so that the focus coil portion 26 does not protrude from the carrier body 221 when it is placed in the focus coil placement position 223 . side walls to avoid an increase in the lateral dimensions of the driving device 20.
  • the anti-shake frame 23 further includes a magnet placement groove 232, and the magnet portion 25 is disposed in the magnet placement groove 232.
  • the magnet placement groove 232 has a horizontal opening toward the focus carrier 22 and a height direction opening toward the base 212 , so that the side and bottom surfaces of the magnet portion 25 disposed in the magnet placement groove 232 are exposed.
  • 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 size of the driving device.
  • the height dimension of the driving device 20 dimension in the Z-axis direction).
  • 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 achieving Focus 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, the magnet part 25 moves in the X-axis direction and/or the Y-axis direction, and the anti-shake frame 23
  • the focus carrier 22 provided 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 includes a first magnet 251 , a second magnet 252 and a third magnet 253 .
  • the first magnet 251 , the second magnet 252 and the The third magnet 253 is fixed in the magnet placement groove 232 of the anti-shake frame 23 in a counterclockwise order.
  • the second magnet 252 and the third magnet 253 are relatively arranged on both sides of the first magnet 251. "shaped structure arrangement.
  • the focus coil part 26 includes a pair of focus coils 261 .
  • the focus coil 261 surrounds the side wall of the focus carrier 22 and is disposed in the focus coil placement position 223 on the side wall of the focus carrier 22 .
  • the focus coil 261 is configured to be opposite to the second magnet 252 and the third magnet 253 in the horizontal direction.
  • the focus coil 261 generates a magnetic field under current excitation to interact with the second magnet 252 and the third magnet 253 to drive the focus coil part 26
  • the focus carrier 22 moves relative to the magnet portion 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 in the anti-shake coil placement position 2122 of the base 212.
  • the first anti-shake coil 271 is opposite to the first magnet 251 along the height direction.
  • the second anti-shake coil 272 is fixed in the anti-shake coil placement position 2122 of the base 212 .
  • the second anti-shake coil 272 and the second magnet 252 are along the height direction.
  • the third anti-shake coil 273 is fixed in the anti-shake coil placement position 2122 of the base 212 , and the third anti-shake coil 273 is opposite to the third magnet 253 along the height direction.
  • the first anti-shake coil 271 , the second anti-shake coil 272 and the third anti-shake coil 273 are fixed on the top surface of the base 212 in counterclockwise order, and the second anti-shake coil 272 and the third anti-shake coil 273 are fixed on the top surface of the base 212 in counterclockwise order. They are arranged on both sides of the first anti-shake coil 271, and the three are arranged in a roughly "O"-shaped structure. Further, the first anti-shake coil 271 , the second anti-shake coil 272 and the third anti-shake coil 273 are laid flat on the top surface of the base 212 .
  • the first anti-shake coil 271 is arranged opposite to the first magnet 251
  • the second anti-shake coil 272 is arranged opposite to the second magnet 252
  • the third anti-shake coil 273 is arranged opposite to the third magnet 253, so that the first anti-shake coil 271
  • the second anti-shake coil 272 and the third anti-shake coil 273 respectively generate magnetic fields under current excitation and interact with the magnetic fields of the first magnet 251 , the second magnet 252 , and the third magnet 253 , thereby driving the magnet part 25 and the anti-shake frame 23 , the focus coil part 26 and the focus carrier 22 move relative to the base 212 of the fixed part 21 .
  • the first magnet 251 interacts with the first anti-shake coil 271 to generate a driving force in the Y-axis direction.
  • the length direction of the first magnet 251 is parallel to the X-axis direction
  • the length direction of the second magnet 252 and the third magnet 253 is parallel to the Y-axis direction.
  • the first magnet 251 is implemented as a multi-stage magnet to increase the magnetic thrust generated when the first magnet 251 interacts with the first anti-shake coil 271.
  • the first magnet 251 can be Quadrupole magnet.
  • the first magnet 251 includes a first magnetic part 251a and a second magnetic part 251b.
  • the first magnetic part 251a and the second magnetic part 251b are along the horizontal direction (vertical direction). direction of the optical axis), the second magnetic part 251b is located on the side of the first magnetic part 251a away from the optical axis, the second magnetic part 251b is located on the side of the first magnetic part 251a away from the focusing carrier 22, the first magnetic part 251a is located between the focus carrier 22 and the second magnetic part 251b.
  • the upper part of the first magnetic part 251a is the N pole, and the lower part of the first magnetic part 251a is the S pole.
  • the magnetic pole direction of the first magnetic part 251a is downward, and the second magnetic part 251a is directed downward.
  • the upper part of the part 251b is the S pole
  • the lower part of the second magnetic part 251b is the N pole
  • the magnetic pole direction of the second magnetic part 251b is upward, so that the first magnet 251 has N pole and S pole on the side facing the first anti-shake coil 271 .
  • the magnetic pole direction (N-S) refers to the direction in which the N pole extends to the S pole.
  • the second magnet 252 and the third magnet 253 can be implemented as two-pole magnets.
  • the side of the second magnet 252 close to the optical axis is the N pole, and the side far away from the optical axis is the S pole; the third magnet
  • the side of 253 close to the optical axis is the N pole.
  • the side away from the optical axis is the S pole.
  • the second magnet 252 and the third magnet 253 can also be multi-pole magnets, such as quadrupole magnets, which is not limited in this application.
  • the size of the first anti-shake coil 271 along the length direction is larger than the size of the second anti-shake coil 272 and the third anti-shake coil 273 along the length direction, so as to increase the distance between the first magnet 251 and the third anti-shake coil 273 .
  • the magnetic thrust force generated when the first anti-shake coil 271 interacts with each other.
  • the second magnet 252 and the third magnet 253 of the magnet part 25 are multiplexed, and the second magnet 252 and the third magnet 253 are used to interact with the focus coil part 26 in the process of realizing the focusing function. It is also used to interact with the anti-shake coil part 27 in the process of realizing the anti-shake function. That is, the second magnet 252 and the third magnet 253 can provide the magnetic fields required by the focus coil part 26 and the anti-shake coil part 27 at the same time.
  • 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 , and the height of the top surface of the first magnet 251 is also smaller. Lower than the height of the top surfaces of the second magnet 252 and the third magnet 253 .
  • the magnet part 25 includes three magnets: the first magnet 251, the second magnet 252 and the third magnet 253.
  • the magnet part 25 is only provided on three sides of the driving device 20.
  • the magnet part 25 is not provided on one side of the driving device 20. , no magnet is provided on the opposite side of the first magnet 251 .
  • the camera module of another array module can be disposed on the side of the driving device 20 that is not provided with the magnet portion 25. In this way, the magnet part 25 of the driving device 20 will not cause magnetic field interference to the adjacent camera module.
  • the magnet part 25 may also include only two magnets, a first magnet 251 and a second magnet 252 .
  • the anti-shake coil part 27 includes a first anti-shake coil opposite to the first magnet 251 .
  • the coil 271 and the second anti-shake coil 272 opposite the second magnet 252. Reducing one magnet (the third magnet 253) can further reduce the size of the driving device 20, but also reduces the driving force of the driving device 20, so that when realizing the focusing function, only one side is provided with the focusing coil 261 for driving.
  • Second magnet 252 due to the interaction between the focus coil 261 and the second magnet 252, the focus carrier 22 is prone to tilting relative to the Z-axis (optical axis), ultimately causing blurred imaging of the camera module 1.
  • 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 The magnet causes electromagnetic interference to the coil-magnet pair of the camera module adjacent to the fourth magnet.
  • the driving device 20 includes a first side 201, a second side 202, a third side 203 and a fourth side 204 arranged sequentially around its circumference, wherein the first magnet 251 is disposed on the driving side.
  • the second magnet 252 is disposed on the second side 202 of the driving device 20 adjacent to the first side 201
  • the third magnet 253 is disposed on the driving device 20 opposite to the second side 202.
  • the fourth side 204 and the third side 203 are not provided with magnets.
  • the focus coil 261 is circumferentially disposed on the first side 201 , the second side 202 , the third side 203 and the fourth side 204 of the driving device 20 , wherein the focus coil 261 includes components located on the first side.
  • the first focus coil part 2611 arranged on the same side is within the magnetic field range of the first magnet 251
  • the second focus coil part 2612 is within the magnetic field range of the second magnet 252
  • the fourth focus coil part 2614 is within the third magnet 253 within the magnetic field range, that is to say, after the focus coil 261 is energized, the magnetic field generated by the first focus coil part 2611 interacts with the magnetic field of the first magnet 251
  • the magnetic field generated by the second focus coil part 2612 interacts with the second magnet 252
  • the magnetic field generated by the fourth focus coil part 2614 interacts with the magnetic field of the third magnet 253 .
  • the magnet portion 25 is only provided on three sides of the driving device 20, and no magnet is provided on the opposite side of the first magnet 251, that is, no magnet is provided on the third side 203 opposite to the first side 201. This makes After the focus coil 261 is energized, only three sides of the focus carrier 22 are acted upon by the driving force, and the focus carrier 22 tilts under the action of the asymmetric force.
  • the focus carrier 22 will produce a translational movement along the Z-axis direction and a rotational movement around the Z-axis direction, that is, the focus carrier 22 will be affected by a translational thrust and a rotational thrust, and when realizing the focusing function , it is necessary to minimize the rotational movement of the focus carrier 22 around the Z-axis direction.
  • the second magnet 252 and the third magnet 253 of the magnet part 25 are reused, but the first magnet 251 of the magnet part 25 is not reused, that is, the first magnet 251 is only used in the process of realizing the anti-shake function. is used to interact with the first anti-shake coil 271 . Therefore, the interaction between the first magnet 251 and the first focus coil part 2611 of the focus coil 261 can be reduced to reduce the driving force generated by the first magnet 251 and the first focus coil part 2611 on the focus carrier 22 influence, thereby preventing the focus carrier 22 from generating dynamic posture differences such as tilting or rotation under the action of asymmetric forces.
  • the first focus coil part 2611 of the focus coil 261 includes a straight-side segment 2611a parallel to the length direction of the first magnet 251, and a straight-side segment 2611a connected to the straight-side segment 2611a.
  • the hypotenuse segments 2611b and 2611c form a certain angle with the length direction of the first magnet 251.
  • the number of the hypotenuse segments 2611b and 2611c is two.
  • the two hypotenuse segments 2611b and 2611c are respectively formed from the two ends of the straight segment 2611a.
  • the first focus coil part 2611 includes a straight side section 2611a and two hypotenuse sections 2611b and 2611c connected to the straight side section 2611a.
  • the hypotenuse segments 2611b and 2611c may be straight line segments, or the hypotenuse segments 2611b and 2611c may also be curved segments, and this application does not limit this.
  • the magnetic force lines passing through the focus coil 261 The more, the greater the magnetic flux passing through the focus coil 261 , the stronger the effective reaction between the focus coil 261 and the first magnet 251 , the stronger the interaction between the focus coil 261 and the first magnet 251 , and the greater the impact on the focus carrier 22 The greater the impact.
  • the straight side section 2611a of the first focus coil part 2611 is closer to the first magnet 251, and the oblique side sections 2611b and 2611c of the first focus coil part 2611 It is further away from the first magnet 251, that is, the distance between the straight side section 2611a and the first magnet 251 is smaller than the distance between the two hypotenuse sections 2611b and 2611c and the first magnet 251.
  • the effective reaction between a magnet and 251 is greater.
  • the length of the straight section 2611a of the first focus coil part 2611 is longer, the lengths of the two connected hypotenuse sections 2611b and 2611c are shorter. The stronger the interaction between the focus coil 261 and the first magnet 251 , the greater the impact on the focus carrier 22 .
  • the effective reaction between the first magnet 251 and the focus coil 261 is reduced by reducing the length of the straight section 2611a of the first focus coil part 2611.
  • the length of the straight section 2611a of the first focus coil part 2611 is shorter than the lengths of the hypotenuse sections 2611b and 2611c, wherein the length of the straight section 2611a is shortened to the minimum size.
  • the length range of the straight edge section 2611a is: 0.1mm-1mm; further, the length range of the straight edge section 2611a is: 0.2mm-0.4mm.
  • the magnetic field lines passing through the focus coil 261 can be reduced, and the effective reaction between the focus coil 261 and the first magnet 251 can be reduced; on the other hand, the first coil part can be further away from the first magnet 251, and the focus coil 261 and the first magnet 251 can be further separated.
  • the weaker the interaction between the first magnets 251 is, thereby reducing the impact of the asymmetric force on the focus carrier 22 .
  • this design can also effectively reduce the resistance value in unnecessary areas. It can be understood that the size of the straight edge section 2611a cannot be infinitely small to avoid making the manufacturing and molding of the focus coil 261 more difficult.
  • the first focus coil part 2611 of the focus coil 261 has an arc-shaped structure or a nearly arc-shaped structure.
  • the first focus coil part 2611 does not have a straight edge segment 2611a, which can further reduce the first focus coil part 2611. The effect of effective reaction between the magnet 251 and the focus coil 261.
  • the focus coil 261 has a symmetrical structure, that is, the second focus coil part 2612 and the fourth focus coil part 2614 are arranged symmetrically, and the first focus coil part 2611 and the third focus coil part are arranged symmetrically. 2613Symmetry setup.
  • the second focus coil part 2612 of the focus coil 261 only has a straight side segment and does not have a hypotenuse segment. That is, the second focus coil part 2612 extends along the length direction of the second magnet 252 and is in contact with the second focus coil part 2612 .
  • the length direction of the magnet 252 is arranged in parallel; the fourth focus coil part 2614 of the focus coil 261 only has a straight section and does not have a hypotenuse section, that is, the fourth focus coil section 2614 extends along the length direction of the third magnet 253 and is in contact with the third
  • the length directions of the magnets 253 are arranged in parallel.
  • the sum of the magnetic thrust force F2 generated by the interaction between the second focus coil part 2612 and the second magnet 252 and the magnetic thrust force F3 generated by the interaction between the fourth focus coil part 2614 and the third magnet 253 is determined by the first focus coil part.
  • the magnetic thrust force F1 generated by the interaction between 2611 and the first magnet 251 is more than 20 times. That is to say, the greater the ratio of the sum of F2 and F3 to F1, the smaller the interaction between the first focus coil part 2611 and the first magnet 251, and the smaller the effect of the asymmetric force generated by the focus carrier 22, thereby avoiding the focus carrier. 22 produces movements such as slanting or rotation.
  • the lengths of the first magnet 251 , the second magnet 252 , the third magnet 253 , and the lengths of the second focus coil part 2612 and the fourth focus coil part 2614 are determined by the size of the driving device 20 decided.
  • the length of the straight section 2611a of the first focus coil part 2611 by adjusting the length of the straight section 2611a of the first focus coil part 2611, the magnitude of the magnetic thrust force F1 generated by the interaction between the first focus coil part 2611 and the first magnet 251 is adjusted.
  • the carrier body 221 includes first side walls arranged sequentially around its circumference. 2210, the second side wall 2211, the third side wall 2212 and the fourth side wall 2213, wherein the first side wall 2210 and the third side wall 2212 are opposite, and the second side wall 2211 is opposite to the fourth side wall 2213.
  • the focus coil 261 is arranged around the first side wall 2210, the second side wall 2211, the third side wall 2212 and the fourth side wall 2213 of the carrier body 221, and the first focus coil part 2611 of the focus coil 261 is located on the first side wall 2210.
  • the second focus coil part 2612 of the focus coil 261 is located on the second side wall 2211
  • the third focus coil part 2613 of the focus coil 261 is located on the third side wall 2212
  • the fourth focus coil part 2614 of the focus coil 261 is located on the fourth side wall 2213.
  • the shapes of the three side walls 2212 and the fourth side wall 2213 are adapted to each other.
  • the first side wall 2210 and the third side wall 2212 are concave structures, and the first side wall 2210 and the third side wall 2212 have openings facing the optical axis.
  • the wall 2212 is symmetrically arranged relative to the through hole of the focus carrier 22 ;
  • the second side wall 2211 and the fourth side wall 2213 are planar structures, and the second side wall 2211 and the fourth side wall 2213 are symmetrically arranged relative to the through hole of the focus carrier 22 .
  • the driving device 20 further includes a magnetic conductive member 28.
  • the magnetic conductive member 28 is disposed between the magnet part 25 and the anti-shake frame 23 for enhancing The magnetic field strength of the magnet part 25.
  • the magnetic conductive member 28 includes a first magnetic conductive member 281, a second magnetic conductive member 282 and a third magnetic conductive member 283.
  • the first magnetic conductive member 281 acts on the first magnet 251
  • the second magnetic conductive member 282 acts on the first magnet 251.
  • the second magnet 252 and the third magnetic conducting member 283 act on the third magnet 253.
  • the magnetically conductive member 28 is fixed in the magnet placement slot 232 of the anti-shake frame 23 by adhesion or other means; in another specific example of this application, the magnetically conductive member 28 is formed by, for example, insert molding. The process is fitted to the frame body 231 of the anti-shake frame 23 .
  • the first magnetic conductive member 281 is disposed on the side of the first magnet 251 away from the first anti-shake coil 271 , that is, the first magnetic conductive member 281 is disposed above the first magnet 251 .
  • this arrangement can make the second magnetic conductor 281 disposed on the side of the first magnet 251 away from the first anti-shake coil 271
  • the magnetic field lines of the first magnet 251 are concentrated downward to increase the magnetic field strength of the first magnet 251; on the other hand, it can also prevent the magnetic force of the first magnet 251 from overflowing, thereby avoiding the interaction between the first magnet 251 and the focus coil 261, and avoiding causing
  • the focus carrier 22 is acted upon by asymmetric forces.
  • the first magnetic conductive member 281 has a U-shaped structure with an opening facing the first anti-shake coil 271.
  • the first magnetic conductive member 281 can cover the top and side surfaces of the first magnet 251. To avoid the magnetic force of the first magnet 251 from overflowing.
  • the first magnetic conductive member 281 has a planar structure and only covers the top surface of the first magnet 251 .
  • the second magnetic conductive member 282 is disposed on the side of the second magnet 252 away from the focus coil 261 , that is, the second magnetic conductive member 282 is disposed on the side of the second magnet 252 away from the second focus coil part 2612 , so that the second magnetic conductive member 282 can be increased.
  • the magnetic field intensity on the side of the two magnets 252 facing the focusing coil 261 is high.
  • the third magnetic conductive member 283 is disposed on the side of the third magnet 253 away from the focus coil 261 , that is, the third magnetic conductive member 283 is disposed on the side of the third magnet 253 away from the fourth focus coil part 2614 , so that the third magnetic conductive member 283 can be added.
  • the second magnet 252 can also be fixed to the second magnetic conductive member 282 through magnetic attraction between the second magnet 252 and the second magnetic conductive member 282 , or the second magnet 252 can be fixed to the second magnetic conductive member 282 through magnetic attraction.
  • the third magnet 253 can also be fixed to the third magnetic conductive member 283 through the magnetic attraction with the third magnetic conductive member 283 or be more firmly attracted to the frame.
  • the magnetic conductive member 28 may not contain magnetism.
  • the magnetic conductive member 28 may be made of ferrite.
  • the magnetic conductive member 28 itself may be a permanent magnet, which is not limited in this application.
  • the suspension portion 24 is provided on the focus carrier 22, the anti-shake frame 23 and the base 212, so that the focus carrier 22 is suspended.
  • the anti-shake frame 23 is suspended in the base 212 .
  • the suspension part 24 includes a first suspension part 241 and one side suspension part 242.
  • the first suspension part 241 is connected between the focus carrier 22 and the anti-shake frame 23, and is used to limit the focus carrier 22 along the optical axis direction. movement, the focus carrier 22 is suspended in the anti-shake frame 23 through the first suspension part 241; the side suspension part 242 is connected between the anti-shake frame 23 and the base 212, and is used to limit the anti-shake frame 23 along the direction perpendicular to the light.
  • the anti-shake frame 23 is suspended in the base 212 through the side suspension portion 242.
  • the first suspension part 241 includes a first elastic piece 2414 and a second elastic piece 2415 that are spaced apart from the driving device 20 along the optical axis direction.
  • the first elastic piece 2414 is provided On the object side of the focus carrier 22, a second elastic piece 2415 is disposed on the image side of the focus carrier 22 to repositionably suspend the focus carrier 22 in the anti-shake frame 23.
  • the focus carrier 22 is between the first elastic piece 2414 and the second elastic piece 2415.
  • the two elastic pieces 2415 are suspended in the anti-shake frame 23 .
  • the first elastic piece 2414 and the second elastic piece 2415 are in the form of a thin sheet structure.
  • the first elastic piece 2414 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 2415 is connected to the anti-shake frame respectively.
  • 23 and the bottom surface of the focus carrier 22 to 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. .
  • the first suspension part 241 includes an outer profile 2411 fixed to the anti-shake frame 23 , an inner profile 2412 fixed to the focus carrier 22 , and an integrally connected outer profile 2411 and the deformation portion 2413 of the inner profile 2412.
  • the deformation portion 2413 bends and extends from the outer profile 2411 to the inner profile 2412, 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 size of the focus carrier.
  • the driving resistance is 22, which improves the optical focusing sensitivity of the driving device 20.
  • the deformation part 2413 is an elastic linear structure made of elastic material (such as rubber, plastic, etc.); in another specific example of this application, the deformation part 2413 can also be made of a rigid material (such as Elastic linear structure made of metal, etc.).
  • the outer profile 2411 of the first elastic piece 2414 is fixed on the top surface of the anti-shake frame 23, the inner profile 2412 of the first elastic piece 2414 is fixed on the top surface of the focusing carrier 22, and the deformation portion 2413 of the first elastic piece 2414 is integrally connected to the first elastic piece 2414.
  • This arrangement enables the focus carrier 22 to be clamped between the first elastic piece 2414 and the second elastic piece 2415 , so that the focus carrier 22 is suspended in the anti-shake frame 23 .
  • the inner profile 2412 and the outer profile 2411 of the first elastic piece 2414 can be fixedly attached to the focusing carrier 22 and the anti-shake frame 23 by, but not limited to, methods such as bonding or heat riveting; the inner profile 2412 and outer profile of the second elastic piece 2415
  • the profile 2411 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.
  • the first elastic piece 2414 may have an integrated structure, and the second elastic piece 2415 may have a split structure.
  • the second elastic piece 2415 may be used to achieve circuit conduction of the driving device 20; the first elastic piece 2415 may have a split structure.
  • 2414 can always maintain good consistency during the installation process, so that the entire plane of the first spring piece 2414 has less installation tolerance.
  • the first elastic piece 2414 has a split structure, and the second elastic piece 2415 has a split structure. Both the first elastic piece 2414 and the second elastic piece 2415 can be used to achieve circuit conduction of the driving device 20 .
  • the first elastic piece 2414 has a symmetrical structure. When the focus carrier 22 moves along the Z-axis direction, the symmetrical first elastic piece 2414 can inhibit the focus carrier 22 from rotating around the Z-axis.
  • the first elastic piece 2414 is a split structure, which includes four first elastic pieces arranged at the four corners of the focus carrier 22 and the anti-shake frame 23 to provide more stable support for the focus carrier 22. It can also provide a symmetrical restoring force for the focus carrier 22 .
  • the first elastic piece 2414 is a split structure, which includes two first elastic pieces symmetrically arranged between the focus carrier 22 and the anti-shake frame 23; or, in another aspect of this application, In a specific example, the first elastic piece 2414 is an integrated structure, which has a common inner profile 2412, four outer profiles 2411, and four deformation portions 2413.
  • the second elastic piece 2415 has a symmetrical structure.
  • the symmetrical second elastic piece 2415 can inhibit the focus carrier 22 from rotating around the Z-axis.
  • the second elastic piece 2415 has a split structure, which includes two parts arranged axially symmetrically, namely the first lower elastic piece 24151 and the second lower elastic piece 24152.
  • the axially symmetrical second elastic piece 2415 can The flatness of the second elastic piece 2415 is further improved to reduce the tilt tolerance of the driving device 20 and improve the assembly accuracy of the driving device 20 .
  • the first lower elastic piece 24151 and the second lower elastic piece 24152 extend along the length direction of the second magnet 252 and the third magnet 253.
  • the first lower elastic piece 24151 and the second lower elastic piece 24152 are relative to the first magnet. 251 is distributed symmetrically around the midline. That is, the first lower elastic piece 24151 and the second lower elastic piece 24152 are symmetrically arranged on the bottom surface of the focus carrier 22 .
  • each part of the second elastic piece 2415 namely the first lower elastic piece 24151 and the second lower elastic piece 24152, respectively has two outer profiles 2411, two deformation portions 2413 and an inner profile 2412, where , one end of the inner profile 2412 is connected to a deformation portion 2413, and the other end of the deformation portion 2413 is connected to an outer profile 2411; the other end of the inner profile 2412 is connected to another deformation portion 2413, and the other end of the deformation portion 2413 is connected to another outer profile. 2411. That is to say, the structures of the first lower elastic piece 24151 and the second lower elastic piece 24152 are: outer profile 2411, deformation portion 2413, inner profile 2412, deformation portion 2413, and outer profile 2411.
  • the first lower elastic piece 24151 of the second elastic piece 2415 includes a first outer profile 2411a, a second outer profile 2411b, a first inner profile 2412a, and a first deformation portion 2413a connecting the first inner profile 2412a and the first outer profile 2411a. , and a second deformation portion 2413b connecting the first inner profile 2412a and the second outer profile 2411b.
  • the first inner profile 2412a is fixed to the focus carrier 22, and the first outer profile 2411a and the second outer profile 2411b are fixed to the anti-shake frame 23.
  • the first outer profile 2411a and the second outer profile 2411b are fixed on opposite sides of the anti-shake frame 23, such as the first side 201 and the third side 203 opposite thereto.
  • the second lower elastic piece 24152 of the second elastic piece 2415 includes a third outer profile 2411c, a fourth outer profile 2411d, and a second inner profile. 2412b, a third deformation portion 2413c connecting the second inner profile 2412b and the third outer profile 2411c, and a fourth deformation portion 2413d connecting the second inner profile 2412b and the fourth outer profile 2411d.
  • the second inner profile 2412b is fixed to the focus carrier 22, and the third outer profile 2411c and the fourth outer profile 2411d are fixed to the anti-shake frame 23.
  • the third outer profile 2411c and the fourth outer profile 2411d are fixed on opposite sides of the anti-shake frame 23, such as the first side 201 and the third side 203 opposite thereto.
  • the first lower elastic piece 24151 and the second lower elastic piece 24152 of the second elastic piece 2415 are relatively disposed on the side close to the second magnet 252 and the third magnet 253 .
  • the second magnet 252 and the third magnet 253 are arranged on opposite sides of the focus coil 261. After the focus coil 261 is energized, the second magnet 252 and the third magnet 253 interact with the focus coil 261 to generate a symmetrical force to drive the focus coil 261. and the focus carrier 22 moves along the optical axis direction.
  • the first lower elastic piece 24151 and the second lower elastic piece 24152 of the second elastic piece 2415 can thus generate a symmetrical restoring force, so that the focus carrier 22 can move smoothly.
  • the side suspension portion 242 is provided on the anti-shake frame 23 and the side wall of the base 212 .
  • the first elastic piece 2414 is disposed on the top surface of the anti-shake frame 23
  • the second elastic piece 2415 is disposed on the bottom surface of the anti-shake frame 23
  • the side suspension portion 242 extends from the bottom surface of the anti-shake frame 23 to the side surface of the anti-shake frame 23 .
  • One end of the side suspension portion 242 is connected to the anti-shake frame 23 , and the other end of the side suspension portion 242 is connected to the base 212 to support and limit the anti-shake frame 23 , which not only helps to improve the structural stability of the driving device 20
  • the anti-shake frame 23 can also be moved and reset within a certain range of travel.
  • the side suspension portion 242 includes at least two side elastic pieces, each side elastic piece includes a first connection end 2425 connected to the anti-shake frame 23 and a second connection end 2426 connected to the base 212. And an elastic deformation part 2427 integrally connects the first connection end 2425 and the second connection end 2426.
  • the elastic deformation portion 2427 includes a plurality of interconnected bending sections extending in the X direction and a plurality of interconnected bending sections extending in the Y direction, wherein the plurality of interconnected bending sections extending in the X direction and a plurality of The interconnected bending sections extending along the Y direction are connected to each other.
  • the elastic deformation portion 2427 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 (original position) under the action of the side suspension portion 242 That is, the position of the anti-shake frame 23 before movement).
  • the side hanging portion 242 has a planar structure 242a and an upright structure 242b that are perpendicular or approximately perpendicular to each other.
  • the first connecting end 2425 and the second connecting end 2426 extend in the horizontal direction to form the planar structure 242a, and the elastic deformation portion 2427 extends in the height direction to form an upright structure.
  • Structure 242b That is, the side suspension portion 242 includes a planar structure 242a connecting the anti-shake frame 23 and the base 212, and an upright structure 242b bent from the planar structure 242a and extending in the height direction.
  • the planar structure 242a extends along the horizontal direction and is integrally connected to the second elastic piece 2415, and the upright structure 242b is bent from the planar structure 242a and extends along the height direction. It can also be said that the plurality of side elastic pieces are formed by bending upward along the height direction from the horizontal plane where the second elastic piece 2415 is located.
  • the side suspension portion 242 includes four side elastic pieces. Two of the four side elastic pieces are disposed on one side of the anti-shake frame 23 , and the other two of the four side elastic pieces are disposed on one side of the anti-shake frame 23 .
  • the side elastic pieces are symmetrically arranged on the other side of the anti-shake frame 23 opposite to this side.
  • two of the four side elastic pieces are arranged on the first On one side 201, the other two side elastic pieces among the four side elastic pieces are symmetrically arranged on the third side 203 opposite to the first side 201.
  • the elastic deformation portions 2427 of the four side elastic pieces are symmetrically arranged on the side of the anti-shake frame 23 where the first magnet 251 is located and the other side opposite to this side, for example First side 201 and third side 203.
  • the planes where the elastic deformation portions 2427 of the two side elastic pieces located on the same side overlap with each other; the planes where the elastic deformation portions 2427 of the two side elastic pieces located on opposite sides are located are parallel to each other.
  • the elastic deformation portions 2427 of two of the four side elastic pieces are located on the first side 201, and the elastic deformation portions 2427 of the two side elastic pieces on this side overlap with each other; the four sides
  • the elastic deformation portions 2427 of the other two side elastic pieces of the elastic piece are located on the third side 203, and the elastic deformation portions 2427 of the two side elastic pieces on this side overlap each other; the elastic deformation portion 2427 of one side elastic piece located on the first side 201 is located there.
  • the plane is parallel to the plane where the elastic deformation portion 2427 of one side elastic piece located on the third side 203 is located.
  • the plane of the erected structure 242b formed by the elastic deformation portion 2427 of each side elastic piece is parallel to the length direction of the first magnet 251. Looking at the plane along the height direction, the length direction of the upright structure 242b formed by the elastic deformation portion 2427 of each side elastic piece is the same as the length direction of the first magnet 251.
  • FIG. 8B is an enlarged schematic view of the circular area A in FIG. 8A .
  • the plane is viewed along the height direction, that is, from a top view, the upright structure 242 b has a certain length along the length direction of the first magnet 251 Width W1, the erected structure 242b has a certain width W2 along the width direction of the first magnet 252 (or along the length direction of the second magnet 252 and the third magnet 253), wherein the erected structure 242b has a certain width W2 along the length direction of the first magnet 251
  • the width W1 is greater than the width W2 of the upright structure 242b along the length direction of the second magnet 252 or the third magnet 253, that is, W1>W2.
  • the length direction of the first magnet 251 is the X-axis direction
  • the length direction of the second magnet 252 or the third magnet 253 is the Y-axis direction. From this, it can be seen that the elastic deformation portion 2427 of the side suspension portion 242 is along the X-axis direction and along the Y-axis direction.
  • the widths in the directions are different, so the K value in the X-axis direction and the K value in the Y-axis direction of the elastic deformation portion 2427 of the side suspension portion 242 are greatly different. Viewing its plane along the height direction, the K value is smaller in the direction in which the width of the elastic deformation portion 2427 is smaller, and the K value is larger in the direction in which the width of the elastic deformation portion is larger.
  • the direction in which the width of the elastic deformation portion 2427 is smaller is the same as the direction in which the anti-shake coil portion 27 drives the first magnet 251 to move; the direction in which the width of the elastic deformation portion 2427 is larger This is the same direction as the anti-shake coil unit 27 drives the second magnet 252 or the third magnet 253 to move.
  • the width of the elastic deformation part 2427 of the side suspension part 242 along the Y-axis direction is small, and the K value of the elastic deformation part 2427 is small, which can be achieved under the action of a small driving force.
  • Deformation occurs, so the first magnet 251 is arranged along the X-axis direction, and the first magnet 251 and the first anti-shake coil 271 generate a driving force along the Y-axis direction to drive the elastic deformation portion 2427 to deform; the side suspension portion 242
  • the width of the elastic deformation part 2427 along the X-axis direction is large, and it can deform under the action of a large driving force.
  • the second magnet 252 and the third magnet 253 are arranged along the Y-axis direction.
  • the third magnet 253 interacts with the second anti-shake coil 272 and the third anti-shake coil 273 to generate a driving force along the X-axis direction to drive the elastic deformation portion 2427 to deform.
  • the direction in which the elastic deformation portion 2427 has a smaller width is in contact with the first magnet 251
  • the driving direction is the same; the direction in which the width of the elastic deformation portion 2427 is larger is the same as the direction in which the second magnet 252 or the third magnet 253 is driven.
  • the direction in which the width of the elastic deformation part 2427 is smaller is the Y-axis direction, and the direction in which the first magnet 251 interacts with the first anti-shake coil 271 to generate driving force is the Y-axis direction; the width of the elastic deformation part 2427 is The larger direction is the X-axis direction, and the direction in which the second magnet 252 and the third magnet 253 interact with the second anti-shake coil 272 and the third anti-shake coil 273 to generate driving force is the X-axis direction.
  • This arrangement can determine the magnets arranged in this direction according to the thickness of the elastic deformation part 2427 along the X-axis direction and the Y-axis direction.
  • the functions of each part of the side suspension part 242 can be more fully utilized, and on the other hand, the functions of each part of the side suspension part 242 can be more fully utilized.
  • the driving device 20 in this embodiment is applied to an array module
  • the camera module 1 side in this embodiment can place a single camera module of another array module at a close distance without causing any problems. Interference, the way this application is set up also helps reduce costs.
  • each side elastic piece of the side suspension portion 242 can be connected to the first elastic piece 2414 or the second elastic piece 2415 as a whole. It can be understood that each side elastic piece of the side suspension portion 242 can be formed by being integrally formed with the first elastic piece 2414 or the second elastic piece 2415 and then bent again, or each side elastic piece of the side suspension portion 242 can also be manufactured first. After forming, it is connected to the first spring piece 2414 or the second spring piece 2415 by welding or other methods, which is not limited in this application.
  • the side hanging portion 242 when the side hanging portion 242 is connected to the first elastic piece 2414, the side hanging portion 242 is close to the object side of the driving device 20, and the supporting surface of the side hanging portion 242 is higher. If the height of the base 212 is low, the elastic deformation portion 2427 of the side suspension portion 242 needs to be extended to a longer length so that the second connecting end 2426 of the side suspension portion 242 can be connected to the base 212 .
  • the side hanging part 242 and the second elastic piece 2415 are connected together, that is, the side hanging part 242 and the second elastic piece 2415 are connected together, and the side hanging part 242 comes from the image side of the driving device 20
  • the side suspension portion 242 extends from the bottom surface of the anti-shake frame 23 to the side surface of the anti-shake frame 23 .
  • the anti-shake frame 23 is suspended in the base 212 under the action of the side suspension portion 242 .
  • the second connecting end 2426 of the side hanging portion 242 is fixedly attached to the base boss 2123 of the base 212 by, but not limited to, bonding or heat riveting, and the first connecting end of the side hanging portion 242 2425 is indirectly fixed to the anti-shake frame 23 by being connected to the second elastic piece 2415.
  • the plane where the base boss 2123 is connected to the second connecting end 2426 is lower than the plane where the anti-shake frame 23 is connected to the first connecting end 2425 .
  • This arrangement allows the supporting surface of the side suspension portion 242 on the base 212 to be lower, making the molding of the base 212 simpler and more reliable.
  • the height of the side hanging portion 242 extending on the side of the anti-shake frame 23 is lower than the top surface of the anti-shake frame 23 . That is to say, when the side hanging portion 242 is connected to the second elastic piece 2415 , the side hanging portion 242 The extension length of the elastic deformation portion 2427 along the height direction can be further shortened, thereby making the side suspension portion 242 more controllable and making the manufacturing and molding simpler.
  • the second elastic piece 2415 is closer to the base 212, and a simpler conductive structure can be used to achieve circuit conduction of the driving device 20.
  • the elastic deformation portion 2427 of the side suspension portion 242 in this application extends along the height direction toward the object side, Since the extension height of the elastic deformation part 2427 is shorter, compared with the prior art, this application eliminates the need to install damping glue at the top of the elastic deformation part 2427, thereby reducing the space required to install the damping glue in the driving device 20, thereby achieving The size of the driving device 20 is reduced.
  • the side suspension part 242 and the second elastic piece 2415 are of an integrated structure. Bending the side suspension part 242 can significantly increase the K value (elastic coefficient) of the side suspension part 242 and the second elastic piece 2415, thereby supporting the entire anti-shake
  • the frame 23 makes the anti-shake frame 23 suspended in the base 212 .
  • the elastic deformation portion 2427 of the side suspension portion 242 can extend to a smaller height, which helps to reduce costs.
  • the side suspension portion 242 includes a first side elastic piece 2421, a second side elastic piece 2422, a third side elastic piece 2423 and a fourth side elastic piece. 2424.
  • the first side elastic piece 2421, the second side elastic piece 2422 and the first lower elastic piece 24151 of the second elastic piece 2415 are connected together to form the first lower suspension assembly 2401.
  • the third side elastic piece 2423, the fourth side elastic piece 2424 and the first lower elastic piece 2415 are connected together.
  • the second lower elastic pieces 24152 of the two elastic pieces 2415 are connected together to form a second lower suspension component 2402, in which the first lower suspension component 2401 and the second lower suspension component 2402 are symmetrically arranged.
  • the first side elastic piece 2421 and the second side elastic piece 2422 are arranged on one side of the driving device 20, and the third side elastic piece 2423 and the fourth side elastic piece 2424 are arranged on the other side of the driving device 20 opposite to this side. Therefore, the anti-shake frame 23 is acted upon by a symmetrical reset force after movement.
  • the first side elastic piece 2421 and the second side elastic piece 2422 are respectively located on a side close to the second magnet 252
  • the third side elastic piece 2423 and the fourth side elastic piece 2424 are respectively located on a side close to the third magnet 253. side.
  • first lower suspension component 2401 extends along the length direction of the second magnet 252
  • second lower suspension component 2402 extends along the length direction of the third magnet 253, the first lower suspension component 2401 and the second lower suspension component 2402 Symmetrical to each other.
  • first connection end 2425 of the first side elastic piece 2421 is indirectly connected to the anti-shake frame 23 by connecting the first outer profile 2411a of the second elastic piece 2415, and the second connection end 2426 of the first side elastic piece 2421 is directly connected to the base.
  • the first connection end 2425 of the second side elastic piece 2422 is indirectly connected to the anti-shake frame 23 by connecting the second outer profile 2411b of the second elastic piece 2415, and the second connection end 2426 of the second side elastic piece 2422 is connected to the base 212;
  • the first connection end 2425 of the third side elastic piece 2423 is indirectly connected to the anti-shake frame 23 by connecting the third outer profile 2411c of the second elastic piece 2415, and the second connection end 2426 of the third side elastic piece 2423 is directly connected to the base 212;
  • the first connection end 2425 of the four-side elastic piece 2424 is indirectly connected to the anti-shake frame 23 by connecting the fourth outer profile 2411d of the second elastic piece 2415, and the second connection end 2426 of the fourth side elastic piece 2424 is directly connected to the base 212.
  • the second connection end 2426 of the first side elastic piece 2421, the second connection end 2426 of the second side elastic piece 2422, the second connection end 2426 of the third side elastic piece 2423 and the second connection end 2426 of the fourth side elastic piece 2424 are fixed. on the base boss 2123, so that the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424 are connected to the base 212.
  • the driving device 20 includes at least a lower suspension component.
  • the suspension assembly includes a lower elastic piece and at least two side elastic pieces integrally connected to the lower elastic piece. At least the lower suspension assembly is provided between the base 212 and the anti-shake frame 23 for supporting and limiting the anti-shake frame 23 . It can be understood that in this application, the structures of the lower elastic piece and the two side elastic pieces can follow the structures of the aforementioned side suspension portion 242 and the second elastic piece 2415.
  • the number of lower suspension assemblies is at least two.
  • the at least two lower suspension assemblies are symmetrically arranged on the bottom surface of the anti-shake frame 23 .
  • the anti-shake frame 23 is suspended in the base 212 under the action of the lower suspension assemblies. .
  • the driving assembly drives the anti-shake frame 23 to move relative to the base 212, at least two side elastic pieces of the lower suspension assembly deform to accumulate elastic force.
  • the anti-shake frame 23 is stopped driving, at least two side elastic pieces of the lower suspension assembly deform. The elastic force accumulated by each side elastic piece is released, thereby driving the anti-shake frame 23 to return to its original position.
  • the number of lower suspension components is two, including a first lower suspension component 2401 and a second lower suspension component 2402.
  • the lower elastic piece includes a first lower elastic piece 24151 and a second lower elastic piece 24152.
  • the at least two side elastic pieces include a first side elastic piece 2421, a second side elastic piece 2422, a third side elastic piece 2423 and a fourth side elastic piece 2424.
  • the first side elastic piece The elastic piece 2421, the second side elastic piece 2422 and the first lower elastic piece 24151 are connected together to form the first lower suspension assembly 2401; the third side elastic piece 2423, the fourth side elastic piece 2424 and the second lower elastic piece 24152 are connected together to form the second lower suspension assembly.
  • the first lower suspension component 2401 and the second lower suspension component 2402 are symmetrically disposed between the anti-shake frame 23 and the base 212 to provide a more symmetrical restoring force for the anti-shake frame 23 .
  • At least two side elastic pieces include a planar structure 242a connecting the base 212 and the lower elastic piece, an upright structure 242b bent from the planar structure 242a and extending in the height direction, and a planar structure 242a connecting the upright structure 242a.
  • each side elastic piece when at least one suspension component is laid flat on a horizontal surface, the planar structure 242a of each side elastic piece is disposed on the same side of the upright structure 242b, and the upright structure 242b of each side elastic piece is located on the same side of the planar structure 242a.
  • this arrangement can improve the consistency of at least one suspension component, and can also improve the flatness of at least one suspension component.
  • the lower elastic piece is disposed between at least two side elastic pieces.
  • the lower elastic piece includes an inner profile 2412, two deformation portions 2413 connected to an inner profile 2412, and two outer profiles 2411 connected to the two deformation portions 2413.
  • the planar structures 242a of the two side elastic pieces extend in the same direction and are respectively connected to the two outer profiles 2411.
  • each side elastic piece includes a first connection end 2425 connected to the outer shell 2411 of the lower elastic piece 2415, a second connection end 2426 connected to the base 212, and the first connection end 2425 and the second connection end 2426 are integrally connected.
  • the elastic deformation part 2427, the first connecting end 2425 and the second connecting end 2426 extend in the horizontal direction to form a planar structure 242a, and the elastic deformation part 2427 extends in the height direction to form an upright structure 242b.
  • the bending portion 2428 connects each side.
  • the elastic pieces extend in the horizontal direction and are bent in the same direction to extend in the height direction.
  • the planar structures 242a of the first side elastic piece 2421 and the second side elastic piece 2422 are located on the same side of the bending portion 2428.
  • the first side elastic piece 2421 and the second side elastic piece 2422 Bend in the same direction;
  • the planar structures 242a of the third side elastic piece 2423 and the fourth side elastic piece 2424 are located on the same side of the bending portion 2428, and the third side elastic piece 2423 and the fourth side elastic piece are bent in the same direction.
  • the planar structures 242a of the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423, and the fourth side elastic piece 2424 are all located on the same side of the bending portion 2428.
  • the elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423, and the fourth side elastic piece 2424 are all along the same direction bend.
  • the two side elastic pieces integrally connected with the lower elastic piece extend in the same direction, and the elastic deformation portions 2427 of the two side elastic pieces are located on the same side of the first connecting end 2425 and the second connecting end 2426. It can also be said that two The elastic deformation portions 2427 of the side elastic pieces bend in the same direction.
  • the planar structure 242a of the first side elastic piece 2421 and the second side elastic piece 2422 forming the first lower suspension component 2401 is disposed on the same side of the upright structure 242b, that is, the first side elastic piece 2421 and the second side elastic piece 2422.
  • the second side elastic piece 2422 is bent in the same direction; the planar structure 242a of the third side elastic piece 2423 and the fourth side elastic piece 2424 forming the second lower suspension component 2402 is disposed on the same side of the upright structure 242b, that is, the third side elastic piece 2423 and the fourth side elastic piece 2424 are bent in the same direction.
  • planar structure 242a of the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423, and the fourth side elastic piece 2424 can also be disposed on the same side of the upright structure 242b, that is, the third side elastic piece 242a.
  • the elastic piece 2421 on one side, the elastic piece 2422 on the second side, the elastic piece 2423 on the third side and the elastic piece 2424 on the fourth side are all bent in the same direction.
  • the structural design of bending in the same direction can effectively improve the design difficulty of the bending jig, making it easier to demold the side suspension part 242 or at least two side elastic pieces or the lower suspension component, thereby improving the yield rate. Improvement, cost reduction. This is because in order to ensure that the elastic deformation part 2427 can be bent within 90° ⁇ 3°, the jig must be designed to bend over 100°, and the elastic deformation part 2427 can be controlled around 90° after rebounding; if the elastic deformation part 2427 If the bending direction is inconsistent, it will cause the mold to be unable to be demolded due to different bending directions, resulting in a decrease in yield and an increase in cost.
  • the first side elastic piece 2421 and the second side elastic piece 2422 extend along the Y-axis direction.
  • the upright structure 242b of the first side elastic piece 2421 is located on the left side of the planar structure 242a.
  • the bending of the first side elastic piece 2421 The portion 2428 is located on the left side of the planar structure 242a; the upright structure 242b of the second side elastic piece 2422 is located on the left side of the planar structure 242a, the bent portion 2428 of the second side elastic piece 2422 is located on the left side of the planar structure 242a, and the first side elastic piece 2421
  • the upright structure 242b and the upright structure 242b of the second side elastic piece 2422 are respectively bent from the left side of the planar structure 242a along the horizontal direction toward the height direction.
  • the elastic deformation portion 2427 of the first side elastic piece 2421 is located on the left side of the first connection end 2425 and the second connection end 2426 of the first side elastic piece 2421
  • the elastic deformation portion 2427 of the second side elastic piece 2422 is located on the second side.
  • the left side of the first connection end 2425 and the second connection end 2426 of the elastic piece 2422, the elastic deformation portion 2427 of the first side elastic piece 2421 and the elastic deformation portion 2427 of the second side elastic piece 2422 are bent from the left side along the horizontal direction toward the height direction. fold.
  • the elastic deformation portion 2427 of the first side elastic piece 2421 and the elastic deformation portion 2427 of the second side elastic piece 2422 can also be bent from the right side along the horizontal direction toward the height direction, which is not limited in this application.
  • the third side elastic piece 2423 and the fourth side elastic piece 2424 extend along the Y-axis direction, the upright structure 242b of the third side elastic piece 2423 is located on the left side of the planar structure 242a, and the bent portion 2428 of the third side elastic piece 2423 is located on the planar structure.
  • the upright structure 242b of the fourth side elastic piece 2424 is located on the left side of the planar structure 242a
  • the bending portion 2428 of the fourth side elastic piece 2424 is located on the left side of the planar structure 242a
  • the upright structure 242b of the third side elastic piece 2423 and
  • the upright structure 242b of the fourth side elastic piece 2424 is bent from the left side of the planar structure 242a along the horizontal direction toward the height direction. That is to say, the elastic deformation portion 2427 of the third side elastic piece 2423 is located on the left side of the first connection end 2425 and the second connection end 2426 of the third side elastic piece 2423, and the elastic deformation portion 2427 of the fourth side elastic piece 2424 is located on the fourth side.
  • the elastic deformation portion 2427 of the third side elastic piece 2423 and the elastic deformation portion 2427 of the fourth side elastic piece 2424 can also be bent from the right side along the horizontal direction toward the height direction. This application does not limit this, as shown in Figures 7 and 7. 8A and FIG.
  • the plane where the elastic deformation part 2427 of the first side elastic piece 2421 is located and the plane where the elastic deformation part 2427 of the second side elastic piece 2422 is located are parallel to each other, and the plane where the elastic deformation part 2427 of the third side elastic piece 2423 is located is parallel to each other.
  • the elastic deformation portions 2427 of the four side elastic pieces are parallel to the plane where the elastic deformation portion 2427 of the fourth side elastic piece 2424 is located.
  • the elastic deformation portions 2427 of the four side elastic pieces are disposed on one side where the first magnet 251 is located and on the other side opposite to this side.
  • the elastic deformation portion 2427 of the first side elastic piece 2421 is located on the side where the first magnet 251 is located, such as the first side 201.
  • the plane where the elastic deformation portion 2427 of the first side elastic piece 2421 is located is parallel to the length direction of the first magnet 251;
  • the elastic deformation portion 2427 of the two-side elastic piece 2422 is located on the other side opposite to the side where the first magnet 251 is located, such as the third side 203 opposite to the first side 201, where the elastic deformation portion 2427 of the second-side elastic piece 2422 is located.
  • the plane is parallel to the plane where the elastic deformation portion 2427 of the first side elastic piece 2421 is located; the first lower elastic piece 24152 is located on the bottom surface of the anti-shake frame 23 and close to the fourth side 204 .
  • the elastic deformation portion 2427 of the third side elastic piece 2423 is located on the side where the first magnet 251 is located, such as the first side 201.
  • the plane where the elastic deformation portion 2427 of the third side elastic piece 2423 is located is in the length direction of the first magnet 251.
  • Parallel; the elastic deformation portion 2427 of the fourth side elastic piece 2424 is located on the side opposite to the side where the first magnet 251 is located, such as the third side 203 opposite to the first side 201.
  • the elastic deformation portion 2427 of the fourth side elastic piece 2424 The plane where the elastic deformation portion 2427 of the third side elastic piece 2423 is located is parallel to each other; the second lower elastic piece 24151 is located on the bottom surface of the anti-shake frame 23 and close to the second side 202 .
  • the first side elastic piece 2421 and the third side elastic piece 2423 are arranged on the same side of the first magnet 251, the second side elastic piece 2422 and the fourth side elastic piece 2424 are arranged on the opposite side of the first magnet 251.
  • the plane where the elastic deformation part 2427 of the side elastic piece 2421 is located, the plane where the elastic deformation part 2427 of the second side elastic piece 2422 is located, the plane where the elastic deformation part 2427 of the third side elastic piece 2423 is located, the elastic deformation part 2427 of the fourth side elastic piece 2424 is located.
  • the plane is parallel to the length direction of the first magnet 251 to provide a more symmetrical restoring force for the anti-shake frame 23 .
  • the circuit conduction of the driving device 20 can be achieved through the second side elastic piece 2422 and the fourth side elastic piece 2424 provided on the opposite side of the first magnet 251, which can improve the space utilization of the driving device 20. Rate.
  • the circuit conduction of the driving device 20 can also be achieved through the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424, which is not limited in this application.
  • the frame body 231 further includes a first constriction 2311 , a second constriction 2312 , a third constriction 2313 and a fourth constriction 2314 provided at its four corners. 2311.
  • the second constriction 2312, the third constriction 2313 and the fourth constriction 2314 may be formed by being recessed inwardly from the first side 201 and the third side 203, or may be recessed inwardly from the second side 202 and the fourth side 204. form.
  • the first constriction 2311, the second constriction 2312, the third constriction 2313 and the fourth constriction 2314 can provide placement for the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424.
  • the space, that is, the concave direction of the shrinkage is the same as the extending direction of the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423, and the fourth side elastic piece 2424.
  • the elastic deformation portion 2427 of the first side elastic piece 2421, the elastic deformation portion 2427 of the second side elastic piece 2422, The elastic deformation portion 2427 of the third side elastic piece 2423 and the elastic deformation portion 2427 of the fourth side elastic piece 2424 are provided at the first shrinking opening 2311, the second shrinking opening 2312, the third shrinking opening 2313 and the fourth shrinking opening of the frame body 231 2314 to prevent the elastic deformation portions 2427 of the four side elastic pieces from being damaged due to contact with the anti-shake frame 23 during deformation. That is to say, each side elastic piece has only two fixed ends, and the end point of the elastic deformation portion 2427 of each side elastic piece is suspended and does not contact with other structures.
  • the object side of the focus carrier 22 is provided with the first elastic piece 2414 extending in the horizontal direction
  • the image side of the focus carrier 22 is provided with the second elastic piece 2415 extending in the horizontal direction
  • the second elastic piece 2415 is integrally connected with the second elastic piece 2415 .
  • Multiple side springs extending along the height direction.
  • the plurality of side elastic pieces are formed by bending the horizontal plane of the second elastic piece 2415 upward along the height direction.
  • the plane of the plurality of side elastic pieces is arranged parallel to the focusing axis of the optical lens 10 installed in the driving device 20, that is, parallel to the optical axis.
  • the elastic deformation direction of the plurality of side elastic pieces is consistent with the radial direction of the optical lens 10 to achieve the anti-shake function; similarly, the first elastic piece 2414 and the second elastic piece 2415 are arranged along the radial direction of the optical lens 10, and their elasticity The deformation direction is consistent with the optical axis direction of the optical lens 10 and is used to implement the focusing function.
  • the driving device 20 further includes an anti-shake circuit board 29.
  • the anti-shake circuit board 29 is provided on the base 212, and the anti-shake coil
  • the portion 27 is provided on and electrically connected to the anti-shake circuit board 29 for realizing circuit conduction between the anti-shake coil portion 27 and the anti-shake circuit board 29 .
  • the side suspension portion 242 further includes an electrical connection portion 2429.
  • the electrical connection portion 2429 is integrally bent downward from the second connection end 2426 and extends to the anti-shake circuit board 29.
  • the circuit conduction between the focus coil 261 and the anti-shake circuit board 29 is achieved through the second elastic piece 2415 and the side suspension portion 242 .
  • the focus coil 261 is arranged on the focus carrier 22.
  • the side wall of the focus carrier 22 has at least two winding posts 222. One end of the focus coil 261 is wound around the focus carrier 22, and the other end of the focus coil 261 is wound around the winding posts 222. .
  • the focusing coil 261 provided on the winding post 222 can be in contact with the second elastic piece 2415.
  • the second elastic piece 2415 is integrally connected to the first connection end 2425 of the side suspension portion 242.
  • the side suspension portion 242 is integrally connected through the third elastic piece 2415.
  • the two connection terminals 2426 and the electrical connection part 2429 conduct the current in the anti-shake circuit board 29 to the focusing coil 261 .
  • At least two side elastic pieces in the side suspension portion 242 are provided with electrical connection portions 2429.
  • the side elastic pieces provided with the electrical connection portions 2429 can be provided on the side opposite to the first magnet 251 to avoid the installation of the first magnet 251. Interference is generated and the space utilization of the driving device 20 is improved.
  • the second side elastic piece 2422 and the fourth side elastic piece 2424 provided on the opposite side of the first magnet 251 are provided with an electrical connection portion 2429, that is, the electrical connection portion 2429 of the second side elastic piece 2422 is connected to the second side elastic piece 2422 from the second side elastic piece 2422.
  • the second connection end 2426 of the side elastic piece 2422 is bent downward and extended integrally, and is electrically connected to the anti-shake circuit board 29; the electrical connection portion 2429 of the fourth side elastic piece 2424 is integrated downwardly from the second connection end 2426 of the fourth side elastic piece 2424. It is bent and extended to be electrically connected to the anti-shake circuit board 29 .
  • the complexity of the circuit of the driving device 20 can be reduced, thereby reducing the cost.
  • the anti-shake circuit board 29 can extend downward and be electrically connected to the chip circuit board 32 of the photosensitive component 30 to achieve circuit conduction of the driving device 20 .
  • the anti-shake circuit board 29 can also extend directly outward to the main board of the electronic device (such as a mobile phone) and be directly electrically connected to the main board of the electronic device to realize independent control of the driving device 20 and the photosensitive component 30 .
  • the driving device 20 further includes a position sensing part (not shown), and the position sensing element may be a Hall element, a driving IC or a TMR.
  • the position sensing part includes a focus position sensing part (not shown) and an anti-shake position sensing part (not shown).
  • the focus position sensing part is arranged opposite to the second magnet 252 or the third magnet 253.
  • the focus carrier 22 moves, the relative position of the focus position sensing part and the second magnet 252 or the third magnet 253 changes. According to the focus
  • the magnetic field strength of the second magnet 252 or the third magnet 253 sensed by the position sensing part can determine the position of the focus carrier 22, and then adjust the current of the focus coil 261 to move the focus carrier 22 to a required position.
  • the anti-shake position sensing part is arranged opposite to the first magnet 251, and the anti-shake position sensing part is arranged opposite to the second magnet 252 or the third magnet 253.
  • the anti-shake position sensing part is arranged opposite to the third magnet 251.
  • the magnetic field intensity of the first magnet 251, the second magnet 252 or the third magnet 253 sensed by the anti-shake position sensing part can be The position of the anti-shake frame 23 is determined, and the current of the anti-shake coil part 27 is adjusted so that the anti-shake frame 23 moves to a required position.

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Abstract

一种驱动装置(20)及摄像模组(1),驱动装置(20)包括:底座(212);防抖框架(23),其被可活动地连接于底座(212);对焦载体(22),其被可活动地连接于防抖框架(23);第一悬持部(241),其连接对焦载体和防抖框架(23),并包括被间隔地设置于对焦载体(22)物侧和像侧的第一弹片(2414)和第二弹片(2415),对焦载体(22)在第一弹片(2414)和第二弹片(2415)的作用下被悬置于防抖框架(23)内;侧悬持部(242),其连接防抖框架(23)与底座(212),其中,侧悬持部(242)与第二弹片(2415)连接于一体,自驱动装置(20)的像侧朝向物侧方向延伸,防抖框架(23)在侧悬持部(242)的作用下被悬置于底座(212)内;以及驱动组件,其驱动对焦载体(22)和防抖框架(23)运动。

Description

一种驱动装置及摄像模组 技术领域
本申请涉及摄像模组技术领域,尤其涉及一种驱动装置及应用驱动装置的摄像模组。
背景技术
随着移动电子设备的普及,被应用于移动电子设备的用于帮助使用者获取影像的摄像模组的相关技术得到了迅猛的发展和进步。目前在市场中,消费者对于配置于移动电子设备(例如,智能手机)的摄像模组的功能要求越来越高和多样化,例如对焦功能和防抖功能。
在实现摄像模组的防抖功能时常使用吊簧线将活动部进行悬吊并平移,但是吊簧线具有组装工序繁杂、容易断裂等问题,从而造成马达不作动或补偿效果变差等问题。
因此,期待一种优良的驱动装置以及摄像模组,以满足消费者对于对焦功能和/或防抖功能的需求。
发明内容
本申请的一个目的在于提供一种驱动装置及摄像模组,其克服现有技术的不足,具有优良的对焦功能和/或防抖功能。
根据本申请的第一个方面,提供一种驱动装置,包括:
底座;
防抖框架,所述防抖框架被可活动地连接于所述底座;
对焦载体,所述对焦载体被可活动地连接于所述防抖框架;
第一悬持部,所述第一悬持部连接所述对焦载体和所述防抖框架,所述第一悬持部包括被间隔地设置于所述对焦载体物侧和像侧的第一弹片和第二弹片,所述对焦载体在所述第一弹片和所述第二弹片的作用下被悬置于所述防抖框架内;
侧悬持部,所述侧悬持部连接所述防抖框架与所述底座,其中,所述侧悬持部与所述第二弹片连接于一体,自所述驱动装置的像侧朝向物侧方向延伸,所述防抖框架在所述侧悬持部的作用下被悬置于所述底座内;以及
驱动组件,所述驱动组件驱动所述对焦载体和所述防抖框架运动。
在一些实施例中,所述第一弹片被设置于所述防抖框架的顶面,所述第二弹片被设置于所述防抖框架的底面,所述侧悬持部自所述防抖框架的底面延伸至所述防抖框架的侧面,所述侧悬持部沿所述防抖框架的侧面延伸的高度低于所述防抖框架的顶面。
在一些实施例中,所述侧悬持部包括至少两个侧弹片,每个所述侧弹片包括连接于所 述防抖框架的第一连接端,连接于所述底座的第二连接端,以及一体地连接所述第一连接端和所述第二连接端的弹性变形部,所述第一连接端和所述第二连接端沿水平方向延伸形成平面结构,所述弹性变形部沿高度方向延伸形成竖立结构。
在一些实施例中,所述平面结构和所述竖立结构相互垂直或近似相互垂直,所述平面结构沿水平方向延伸一体地连接所述第二弹片,所述竖立结构自所述平面结构弯折并沿高度方向延伸。
在一些实施例中,所述第一连接端与所述弹性变形部之间具有一弯折部,所述第二连接端与所述弹性变形部之间具有一弯折部,所述弯折部将所述侧悬持部由水平方向延伸转折为高度方向延伸。
在一些实施例中,所述侧悬持部包括四个所述侧弹片,四个所述侧弹片中的两个所述侧弹片被设置于所述防抖框架的一侧,四个所述侧弹片中的另外两个所述侧弹片被对称地设置于所述防抖框架与该侧相对的另一侧。
在一些实施例中,位于同侧的两个所述侧弹片的所述弹性变形部所在的平面相互重合;位于对侧的两个所述侧弹片的所述弹性变形部所在的平面相互平行。
在一些实施例中,所述驱动组件包括磁石部,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沿水平方向相对;防抖线圈部,所述防抖线圈部被设置于所述底座并与所述磁石部沿高度方向相对;所述磁石部包括第一磁石、第二磁石和第三磁石,所述第二磁石和所述第三磁石被相对地设置于所述第一磁石的两侧,四个所述侧弹片的所述弹性变形部被设置于所述第一磁石所在的一侧和与该侧相对的另一侧。
在一些实施例中,四个所述侧弹片的所述弹性变形部所在的平面分别与所述第一磁石的长度方向平行。
根据本申请的另一个方面,提供一种驱动装置,包括底座、防抖框架和驱动组件,至少一下悬持组件,至少一个所述下悬持组件被设置于所述底座与所述防抖框架之间;
至少一所述下悬持组件包括下弹片和一体地连接于所述下弹片的至少两个侧弹片;
至少两个所述侧弹片包括连接所述底座和所述下弹片的平面结构,自所述平面结构弯折并沿高度方向延伸的竖立结构,以及连接所述平面结构和所述竖立结构的弯折部;
其中,至少两个所述侧弹片的所述平面结构位于所述弯折部的同一侧。
在一些实施例中,所述下弹片被设置于至少两个所述侧弹片之间,所述下弹片包括一个内廓、连接于一个所述内廓的两个变形部、以及连接于两个所述变形部的两个外廓,两个所述侧弹片的所述平面结构沿同一方向延伸,并分别连接于两个所述外廓。
在一些实施例中,每个所述侧弹片的所述竖立结构从所述平面结构的同一侧沿同一方 向弯折。
在一些实施例中,每个所述侧弹片包括连接于所述下弹片的所述外廓的第一连接端,连接于所述底座的第二连接端,以及一体地连接所述第一连接端和所述第二连接端的弹性变形部,所述第一连接端和所述第二连接端延水平方向延伸形成平面结构,所述弹性变形部沿高度方向延伸形成竖立结构。
在一些实施例中,所述第一连接端与所述弹性变形部之间具有一所述弯折部,所述第二连接端与所述弹性变形部之间具有一所述弯折部,所述弯折部将每个所述侧弹片由水平方向延伸沿同一方向弯折为高度方向延伸。
在一些实施例中,所述下悬持组件的数量为至少两个,至少两个所述下悬持组件被对称地设置于所述防抖框架的底面,所述防抖框架在所述下悬持组件的作用下被悬置于所述底座内,所述驱动组件驱动所述防抖框架相对于所述底座移动。
在一些实施例中,所述下弹片包括第一下弹片和第二下弹片,至少两个所述侧弹片包括第一侧弹片、第二侧弹片、第三侧弹片和第四侧弹片,所述第一侧弹片、所述第二侧弹片和所述第一下弹片连接于一体形成第一下悬持组件;所述第三侧弹片、所述第四侧弹片和所述第二下弹片连接于一体形成第二下悬持组件,所述第一下悬持组件和所述第二下悬持组件被对称地设置于所述防抖框架和所述底座之间。
在一些实施例中,所述第一侧弹片和所述第二侧弹片的所述平面结构均位于所述弯折部的同一侧,所述第一侧弹片和所述第二侧弹片沿同一方向弯折;所述第三侧弹片和所述第四侧弹片的所述平面结构位于所述弯折部的同一侧,所述第三侧弹片和所述第四侧弹片沿同一方向弯折。
在一些实施例中,所述第一侧弹片、所述第二侧弹片、所述第三侧弹片、所述第四侧弹片的所述平面结构均位于所述弯折部的同一侧,所述第一侧弹片、所述第二侧弹片、所述第三侧弹片、所述第四侧弹片均沿同一方向弯折。
根据本申请的另一个方面,提供一种驱动装置,包括:
一种驱动装置,包括:
底座;
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;
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;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;
侧悬持部,所述防抖框架在所述侧悬持部的作用下被悬置于所述底座内,所述侧悬持 部包括连接所述防抖框架和所述底座的平面结构,以及自所述平面结构弯折并沿高度方向延伸的竖立结构;
其中,高度方向上,所述竖立结构沿所述第一磁石的长度方向的宽度大于所述竖立结构沿所述第二磁石或所述第三磁石的长度方向的宽度。
在一些实施例中,所述侧悬持部包括至少两个侧弹片,每个所述侧弹片包括连接于所述防抖框架的第一连接端,连接于所述底座的第二连接端,以及一体地连接所述第一连接端和所述第二连接端的弹性变形部,所述第一连接端和所述第二连接端延水平方向延伸形成平面结构,所述弹性变形部沿高度方向延伸形成竖立结构。
在一些实施例中,所述第一连接端与所述弹性变形部之间具有一弯折部,所述第二连接端与所述弹性变形部之间具有一弯折部,所述弯折部将所述侧悬持部由水平方向延伸转折为高度方向延伸。
在一些实施例中,高度方向上,所述弹性变形部宽度较小的方向K值较小,所述弹性变形部宽度较大的方向K值较大。
在一些实施例中,高度方向上,所述弹性变形部宽度较小的方向与所述防抖线圈部驱动所述第一磁石移动的方向相同;所述弹性变形部宽度较大的方向与所述防抖线圈部驱动所述第二磁石或所述第三磁石移动的方向相同。
在一些实施例中,所述侧悬持部包括四个所述侧弹片,四个所述侧弹片中的两个所述侧弹片被设置于所述第一磁石所在的一侧,四个所述侧弹片中的另外两个所述侧弹片被对称地设置于与该侧相对的另一侧。
在一些实施例中,位于同侧的两个所述侧弹片的所述弹性变形部所在的平面相互重合;位于对侧的两个所述侧弹片的所述弹性变形部所在的平面相互平行。
在一些实施例中,所述驱动装置进一步包括对焦载体和第一悬持部,所述对焦载体被可活动地连接于所述防抖框架,所述第一悬持部连接所述对焦载体和所述防抖框架,所述第一悬持部包括被间隔地设置于所述对焦载体物侧和像侧的第一弹片和第二弹片,所述侧悬持部与所述第二弹片连接于一体。
在一些实施例中,所述驱动装置进一步包括对焦载体和第一悬持部,所述对焦载体被可活动地连接于所述防抖框架,所述第一悬持部连接所述对焦载体和所述防抖框架,所述第一悬持部包括被间隔地设置于所述对焦载体物侧和像侧的第一弹片和第二弹片,所述侧悬持部与所述第一弹片连接于一体。
根据本申请的另一个方面,提供一种驱动装置,包括:
底座;
防抖框架,所述防抖框架被可活动地连接于所述底座;
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,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;
防抖线圈部,所述防抖线圈部被设置于所述底座并与所述磁石部相对;
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,其中,所述对焦线圈部具有与所述第一磁石的长度方向相互平行的直边段,以及连接于所述直边段并与所述第一磁石的长度方向呈一定夹角的斜边段。
在一些实施例中,所述驱动装置包括绕其周侧依次设置的第一侧、第二侧、第三侧和第四侧,所述第一磁石被设置于所述第一侧,所述第二磁石被设置于所述第二侧,所述第三磁石被设置于所述第四侧,所述第三侧不设置有磁石。
在一些实施例中,所述对焦线圈包括位于所述第一侧的第一对焦线圈部、位于所述第二侧的第二对焦线圈部、位于所述第三侧的第三对焦线圈部以及位于所述第四侧的第四对焦线圈部,所述第一对焦线圈部处于所述第一磁石的磁场范围内,所述第二对焦线圈部处于所述第二磁石的磁场范围内,所述第四对焦线圈部处于所述第三磁石的磁场范围内。
在一些实施例中,所述第一对焦线圈部包括一所述直边段和连接于所述直边段的至少两个所述斜边段,所述直边段至所述第一磁石的距离小于两个所述斜边段至所述第一磁石的距离。
在一些实施例中,所述直边段的长度小于所述斜边段的长度,以降低所述第一磁石与所述第一对焦线圈部之间的有效反应。
在一些实施例中,所述对焦线圈为对称结构,所述第二对焦线圈部与所述第四对焦线圈部对称设置,所述第一对焦线圈部与所述第三对焦线圈部对称设置。
在一些实施例中,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底座并与所述第一磁石相对,所述第二防抖线圈被固定于所述底座并与所述第二磁石相对,所述第三防抖线圈被固定于所述底座并与所述第三磁石相对。
在一些实施例中,所述驱动装置包括导磁件,所述导磁件包括第一导磁件、第二导磁件和第三导磁件,所述第一导磁件被设置所述第一磁石远离所述第一防抖线圈的一侧,所述第二导磁件被设置于所述第二磁石远离所述第二对焦线圈部的一侧,所述第三导磁件被设置于所述第三磁石远离所述第四对焦线圈部的一侧。
在一些实施例中,所述驱动装置包括悬持部,所述悬持部包括第一悬持部和侧悬持部,所述第一悬持部连接所述对焦载体和所述防抖框架之间,所述对焦载体藉由所述第一悬持部悬置于所述防抖框架内;所述侧悬持部连接所述防抖框架和所述底座之间,所述防抖框架藉由所述侧悬持部悬置于所述底座内。
根据本申请的另一个方面,提供一种摄像模组,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
驱动装置,所述驱动装置适于驱动所述光学镜头移动。
与现有技术相比,本申请具有下列至少一个技术效果:
1、侧悬持部的弹性变形部沿高度方向的延伸长度可以进一步缩短,侧悬持部的可控性更高,制造成型更加简单;
2、侧悬持部和第二弹片更靠近于底座,可以使用更加简单的导电结构实现驱动装置的电路导通;
3、将至少两个侧弹片沿同一方向弯折,以提高下悬持组件的一致性;
4、有效改善弯折治具的设计难度,使得下悬持组件更加容易脱模,使得良率提升,成本下降;
5、高度方向上,根据侧悬持部的弹性变形部的的薄厚确定在该方向配置的磁石,使得侧悬持部的各个部分的功能得到更加充分的利用;
6、一个实施例中的摄像模组侧可近距离的放置另一阵列模组的摄像模组单体,而不会产生干涉;
7、避免非对称力的产生,进而避免对焦载体在非对称力的作用下产生倾斜或旋转等动态姿势差;
8、通过缩小第一对焦线圈部的直边段的长度,来降低第一磁石与对焦线圈之间的有效反应。
在以下描述中部分地阐述了另外的实施方案和特征,并且本领域技术人员在审阅说明书之后将明白或者通过所公开的主题的实践来学习这些实施方案和特征。可通过参考构成本申请的一部分的说明书和附图的其余部分来实现本公开的特点和优点的进一步理解。
附图说明
图1是根据本申请实施方式的摄像模组的剖面示意图;
图2是根据本申请实施方式的驱动装置的立体爆炸示意图;
图3是根据本申请实施方式的驱动装置的对焦部分的立体爆炸示意图;
图4是根据本申请实施方式的驱动装置的去除壳体后驱动装置的结构示意图;
图5是根据本申请实施方式的驱动装置的磁石部、对焦线圈部和防抖线圈部的示意图;
图6是根据本申请实施方式的驱动装置的磁石部和对焦线圈部的俯视图;
图7是根据本申请实施方式的驱动装置的悬持部的结构示意图;
图8A是根据本申请实施方式的驱动装置的悬持部和磁石部的俯视图;
图8B是图8A的圆形区域A的放大示意图;
图9是根据本申请实施方式的驱动装置的下悬持组件的结构示意图;
图10是根据本申请实施方式的驱动装置的悬持部、对焦载体、防抖框架、磁石部的仰视图;
图11是根据本申请实施方式的驱动装置的悬持部、对焦载体、防抖框架、底座、防抖线路板的结构示意图。
具体实施方式
下面,结合具体实施方式,对本申请做进一步描述,需要说明的是,在不相冲突的前提下,以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
“包括”,该术语是开放式的。如在所附权利要求书中所使用的,该术语不排除附加结构或步骤。
在本申请的描述中,需要说明的是,对于方位词,如有术语“中心”、“横向”、“纵向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示方位和位置关系为基于附图所示的方位或位置关系,仅是为了便于叙述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定方位构造和操作,不能理解为限制本申请的具体保护范围。
需要说明的是,本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
本申请的说明书和权利要求书中的术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
需要说明的是,如在本申请中使用的,用语“基本上”、“大约”以及类似的用语用作表近似的用语,而不用作表程度的用语,并且旨在说明将由本领域普通技术人员认识到的、测量值或计算值中的固有偏差。
在本申请的描述中,还需要说明的是,除非另有明确的规定和限定,术语“设置”、“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以是接触连接或通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
“被配置为”,各种单元、电路或其他部件可被描述为或叙述为“被配置为”执行一项或多项任务。在此类上下文中,“被配置为”用于通过指示单元/电路/部件包括在操作期间 执行这一项或多项任务的结构(例如,电路)来暗指该结构。此外,“被配置为”可包括由软件和/或固件操纵的通用结构(例如,通用电路)以能够执行待解决的一项或多项任务的方式操作。“被配置为”还可包括调整制造过程(例如,半导体制作设施),以制造适用于实现或执行一项或多项任务的设备(例如,集成电路)。
在本文描述中所使用的术语只是为了描述特定实施方案,而并非旨在进行限制。如说明书和所附权利要求中所使用的那样,单数形式的“一个”、“一种”和“该”旨在也涵盖复数形式,除非上下文以其他方式明确地指示。还将理解的是,本文中所使用的术语“和/或”是指并且涵盖相关联地列出的项目中的一个或多个项目的任何和全部可能的组合。还将理解的是,术语“包括”和/或“包含”在本说明书中使用时是指定存在所陈述的特征、整数、步骤、操作、元件和/或部件,但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、部件和/或其分组。
如本文中所用,根据上下文,术语“如果”可以被解释为意思是“当...时”或“在...时”或“响应于确定”或“响应于检测到”。类似地,根据上下文,短语“如果确定...”或“如果检测到[所陈述的条件或事件]”可被解释为是指“在确定...时”或“响应于确定...”或“在检测到[所陈述的条件或事件]时”或“响应于检测到[所陈述的条件或事件]”。
示例性摄像模组
图1至图11示出了本申请的驱动装置20以及摄像模组1,如图1所示,根据本申请实施例的摄像模组1被阐明,其包括一感光组件30、被保持于感光组件30的感光路径上的一光学镜头10,以及用于驱动光学镜头10移动以实现光学性能调整的一驱动装置20,例如,用于实现防抖、对焦等功能。
相应地,该光学镜头10包括一镜筒和被安装于该镜筒的多个光学透镜,光学镜头10具有一光轴,光学镜头10的光轴也是多个光学透镜的光轴,感光组件30沿光轴方向与光学镜头10相对设置。为了便于描述,以摄像模组1朝向被摄物的一侧为物侧,以摄像模组1朝向感光组件30的一侧为像侧,光轴方向包括沿光轴指向像侧的方向(本申请中简称像侧),及沿光轴指向物侧的方向(本申请中简称物侧),水平方向为垂直于光轴方向的方向,高度方向为沿光轴方向的方向。
继续参照图1,光学镜头10被固定于驱动装置20中,感光组件30被固定于驱动装置20的像侧,进而光学镜头10可以通过驱动装置20被保持于感光组件30的感光路径上,光学镜头10适于被驱动装置20驱动以实现防抖、对焦等功能。
感光组件30包括一芯片线路板32以及电连接于该芯片线路板32的一感光芯片31和多个电子元件33,该感光芯片31用于接收光学镜头10采集的外界光线成像并通过芯片线路板32与外部移动电子设备电连接。在本申请的一个实施例中,该多个电子元件33可以是电阻、电容等无源电子器件和驱动芯片、存储芯片等有源电子器件中的一种或者多种。
该感光组件30进一步还包括一滤光组件34,滤光组件34包括一滤光元件341,滤光 元件341被保持于感光芯片31的感光路径上,滤光元件341被设置于光学镜头10和感光芯片31之间,其用于对进入感光芯片31的入射光线进行过滤,滤除入射光线中例如红外光线等成像不需要的杂光。
滤光组件34还包括一滤光元件支架342,滤光元件341被安装固定于该滤光元件支架342且对应于感光芯片31的至少感光区域,滤光元件支架342具有一通光孔,穿过光学镜头10的入射光线通过该通光孔入射至感光芯片31,滤光元件341可以被正贴或者倒贴于滤光元件支架342。
进一步地,滤光元件支架342被固定于芯片线路板32,在本申请的一个实施例中,感光组件30通过滤光元件支架342固定于驱动装置20的像侧,在本申请的另一个实施例中,感光组件30也可以通过芯片线路板32固定于驱动装置20的像侧。
其中,滤光元件支架342可以是先预制成型后再通过例如粘合介质粘接的方式固定于芯片线路板32,也可以是通过例如模塑工艺等方式一体成型于芯片线路板32,通过一体成型的方式直接固定于芯片线路板32,本申请并不受此所限。
示例性驱动装置
如图2至图11所示,本申请的驱动装置20可以驱动光学镜头10沿Z轴方向移动,以调整光学镜头10相对感光组件30的距离,实现对焦功能;驱动装置20可以驱动光学镜头10在X轴方向和/或Y轴方向移动,以使光学镜头10相对感光组件30平移,以实现防抖功能。在本申请实施例中,X轴方向和Y轴方向相互垂直,Z轴方向垂直于X轴方向和Y轴方向所在平面,换言之,X轴、Y轴和Z轴构成了三维立体坐标系,X轴方向和Y轴方向所在的XOY平面也称为水平方向所在平面,Z轴趋近于光轴方向或与光轴平行的方向。本申请中,由于组装公差的问题,垂直包括两个物体间的夹角为90°和接近90°这两种情况,平行包括两个物体间的夹角为0°和接近0°这两种情况。即近似垂直也可被视为垂直,近似平行也可被视为平行。在本申请的一个实施例中,驱动装置20包括一固定部21、一对焦载体22、一防抖框架23、一悬持部24、一磁石部25、一对焦线圈部26和一防抖线圈部27。其中,对焦载体22、防抖框架23、悬持部24、磁石部25、对焦线圈部26和防抖线圈部27被容置于固定部21中,磁石部25被设置于防抖框架23,对焦线圈部26被设置于对焦载体22并与磁石部25相对,防抖线圈部27被设置于固定部21并与磁石部25相对。其中,驱动装置20包括对焦部分和防抖部分,对焦部分用于实现驱动装置20的对焦功能;防抖部分用于实现驱动装置20的防抖功能。
具体地,在本申请的一个实施例中,该固定部21包括一壳体211和一底座212,壳体211和底座212相互扣合形成固定部21的容纳腔以容纳对焦载体22、防抖框架23、悬持部24、磁石部25、对焦线圈部26和防抖线圈部27等部件,一方面可以避免灰尘进入,另一方面可以避免受到撞击时各部件掉落。
进一步地,在本申请的一个实施例中,底座212包括底座主体2121和被设置于底座主体2121的防抖线圈安置位2122,其中,防抖线圈安置位2122被设置于底座主体2121的顶面, 防抖线圈部27被设置于防抖线圈安置位2122内。底座212进一步包括底座凸台2123,底座凸台2123一体地设置于底座主体2121上并朝物侧方向延伸,底座凸台2123被设置于靠近底座主体2121转角的位置处。
其中,固定部21的壳体211和底座212均为定子,在驱动装置20驱动光学镜头10移动时,固定部21保持相对固定,其他部件相对固定部21移动。在本申请的一个实施例中,感光组件30被固定于固定部21的底座212,进而感光组件30也成为相对固定的部分。该壳体211和该底座212分别具有一通光孔,以使成像光线可以入射被固定于驱动装置20的光学镜头10和可以出射光学镜头10以入射感光组件30。
如图2至图4所示,在本申请的一个实施例中,该防抖框架23被可活动地连接于固定部21的底座212,该对焦载体22被可活动地连接于防抖框架23,光学镜头10被固定于对焦载体22,从而对焦载体22被驱动装置20驱动时,光学镜头10随对焦载体22移动。
其中,在本申请的一个实施例中,对焦载体22包括一载体主体221,其中,光学镜头10被固定于载体主体221,载体主体221具有一适用容置光学镜头10的通孔,光学镜头10被固定于对焦载体22的通孔中,具体的,光学镜头10可以通过例如粘合介质粘接或者焊接的方式固定于对焦载体22,也可以通过使光学镜头10的镜筒和对焦载体22一体成型的方式固定于对焦载体22,本申请并不受此所限。
对焦载体22被可活动地设置于防抖框架23的内侧,防抖框架23被可活动地设置于对焦载体22和固定部21之间,在本申请的一个实施例中,防抖框架23被可活动地设置于底座212的上方,防抖框架23包括一框架主体231,框架主体231具有一容置腔2310,对焦载体22被容纳于防抖框架23的容置腔2310中。
可以理解的是,在本申请实施例中,对焦载体22既可单独被驱动相对于防抖框架23发生移动,也可以在防抖框架23的带动下随防抖框架23共同移动。进一步的,通过驱动对焦载体22和/或防抖框架23移动来带动光学镜头10移动,以实现对焦和/或防抖功能。
具体地,当防抖框架23保持不动,对焦载体22被驱动相对于防抖框架23运动时,对焦载体22能够带动光学镜头10沿光轴方向移动,以实现对焦功能;当防抖框架23被驱动相对于底座212运动时,防抖框架23能够带动对焦载体22和光学镜头10在垂直于光轴的平面内移动,以实现防抖功能。
参照图2和图3所示,在本申请的一个实施例中,磁石部25、对焦线圈部26和防抖线圈部27形成驱动装置20的驱动组件,驱动组件能够驱动对焦载体22和防抖框架23运动。
磁石部25被设置于防抖框架23,对焦线圈部26被设置于对焦载体22并与磁石部25相对,防抖线圈部27被设置于固定部21的底座212并与磁石部25相对。在本申请一具体示例中,磁石部25被固定于防抖框架23,对焦线圈部26被固定于对焦载体22的侧面,防抖线圈部27被固定于底座212的顶面。即对焦线圈部26与磁石部25沿水平方向相对设置,防抖线圈部27与磁石部25沿高度方向相对设置。
其中,在本申请的一个实施例中,对焦载体22还包括一被设置于载体主体221侧壁的对焦线圈安置位223,对焦线圈部26被设置于对焦线圈安置位223。当然,对焦线圈部26可以直接绕制于对焦载体22的侧壁,也可以预制成型后安装于对焦载体22的侧壁,本申请对此不做限制。
可以理解的是,本申请中,对焦线圈部26可以为空心环绕线圈,即对焦线圈部26为单个线圈,被以环绕的方式设置于对焦载体22的侧壁;对焦线圈部26也可以为空心平面线圈,即对焦线圈部26的数量为至少一个,被以平面贴附的方式设置于对焦载体22的侧壁。
在本申请一具体示例中,对焦线圈安置位223由载体主体221的侧壁向内凹陷的凹槽形成,以使得对焦线圈部26被设置于对焦线圈安置位223时不会突出于载体主体221的侧壁,避免了驱动装置20横向尺寸的增加。
其中,在本申请的一个实施例中,防抖框架23进一步包括磁石安置槽232,磁石部25被设置于磁石安置槽232内。其中,磁石安置槽232具有朝向对焦载体22的沿水平方向的开口,以及朝向底座212的沿高度方向的开口,以使得被设置于磁石安置槽232内的磁石部25的侧面和底面裸露。
进一步的,磁石部25面对对焦线圈部26的侧面裸露,未被防抖框架23覆盖,从而使对焦线圈部26与磁石部25之间的距离可以被设计的较小,以减小驱动装置20的横向尺寸(水平方向的尺寸);磁石部25面对防抖线圈部27的底面裸露,从而使防抖线圈部27与磁石部25之间的距离可以被设计的较小,以减小驱动装置20的高度尺寸(Z轴方向的尺寸)。
该对焦线圈部26在电流激励下产生磁场与磁石部25的磁场相互作用,进而对焦线圈部26被驱动,对焦线圈部26沿Z轴方向移动,对焦载体22随对焦线圈部26移动,从而实现对焦功能;该防抖线圈部27在电流激励下产生磁场与磁石部25的磁场相互作用,进而磁石部25被驱动,磁石部25在X轴方向和/或Y轴方向移动,防抖框架23随磁石部25移动,被设置于防抖框架23的对焦载体22随防抖框架23移动,从而实现防抖功能。
在本申请实施例中,磁石部25得到复用,磁石部25既在实现对焦功能的过程中被用于与对焦线圈部26相互作用,也在实现防抖功能的过程中被用于与防抖线圈部27相互作用,使得驱动装置20的结构设计集约化、小型化。
如图2至图6所示,在本申请的一个实施例中,磁石部25包括一第一磁石251、一第二磁石252和一第三磁石253,第一磁石251、第二磁石252和第三磁石253沿逆时针顺序被固定于防抖框架23的磁石安置槽232内,第二磁石252和第三磁石253被相对地设置于第一磁石251的两侧,三者大致呈“匚”形结构排列。
对焦线圈部26包括一对焦线圈261,对焦线圈261环绕于对焦载体22的侧壁,被设置于对焦载体22侧壁的对焦线圈安置位223内。对焦线圈261被配置为与第二磁石252和第三磁石253沿水平方向相对设置,对焦线圈261在电流激励下产生磁场与第二磁石252和第三磁石253相互作用,从而驱动对焦线圈部26和对焦载体22相对磁石部25和防抖框架23移动。
防抖线圈部27包括一第一防抖线圈271、一第二防抖线圈272和一第三防抖线圈273,第一防抖线圈271被固定于底座212的防抖线圈安置位2122内,第一防抖线圈271与第一磁石251沿高度方向相对,第二防抖线圈272被固定于底座212的防抖线圈安置位2122内,第二防抖线圈272与第二磁石252沿高度方向相对,第三防抖线圈273被固定于底座212的防抖线圈安置位2122内,第三防抖线圈273与第三磁石253沿高度方向相对。
具体地,第一防抖线圈271、第二防抖线圈272和第三防抖线圈273沿逆时针顺序被固定于底座212的顶面,第二防抖线圈272和第三防抖线圈273被设置于第一防抖线圈271的两侧,三者大致呈“匚”形结构排列。进一步的,第一防抖线圈271、第二防抖线圈272和第三防抖线圈273被平铺在底座212的顶面上。
第一防抖线圈271与第一磁石251相对设置,第二防抖线圈272与第二磁石252相对设置,第三防抖线圈273与第三磁石253相对设置,从而第一防抖线圈271、第二防抖线圈272和第三防抖线圈273分别在电流激励下产生磁场与第一磁石251、第二磁石252、第三磁石253的磁场相互作用,从而驱动磁石部25、防抖框架23、对焦线圈部26和对焦载体22相对固定部21的底座212移动。
当防抖框架23被驱动沿X轴方向水平移动时,第二磁石252与第二防抖线圈272之间相互作用,第三磁石253与第三防抖线圈273之间相互作用,以产生沿X轴方向的驱动力;当防抖框架23被驱动沿Y轴方向水平移动时,第一磁石251与第一防抖线圈271之间相互作用,以产生沿Y轴方向的驱动力。本申请中,第一磁石251的长度方向与X轴方向平行,第二磁石252和第三磁石253的长度方向与Y轴方向平行。
也就是说,当防抖框架23被驱动沿X轴方向水平移动时,第二磁石252和第三磁石253均参与工作;当防抖框架23被驱动沿Y轴方向水平移动时,由于第一磁石251的对侧未设置磁石,因此仅有第一磁石251参与工作,会造成沿该方向的驱动力较小。为解决上述问题,在本申请中,将第一磁石251实施为多级磁石,以增加第一磁石251与第一防抖线圈271相互作用时产生的磁推力,例如,第一磁石251可以为四极磁石。
如图5所示,在本申请的一个实施例中,第一磁石251包括一第一磁力部分251a和一第二磁力部分251b,第一磁力部分251a和第二磁力部分251b沿水平方向(垂直于光轴的方向)层叠设置,第二磁力部分251b位于第一磁力部分251a远离光轴的一侧,第二磁力部分251b位于第一磁力部分251a远离对焦载体22的一侧,第一磁力部分251a位于对焦载体22和第二磁力部分251b之间,第一磁力部分251a的上方为N极,第一磁力部分251a的下方为S极,第一磁力部分251a的磁极方向向下,第二磁力部分251b的上方为S极,第二磁力部分251b的下方为N极,第二磁力部分251b的磁极方向向上,这样第一磁石251面对第一防抖线圈271一侧具有N极和S极。需注意的是,在本申请中,磁极方向(N-S)是指N极向S极延伸的方向。
当然,在本申请,第二磁石252和第三磁石253可以被实施为两极磁石,第二磁石252中靠近光轴的一侧为N极,远离光轴的一侧为S极;第三磁石253中靠近光轴的一侧为N极, 远离光轴的一侧为S极。可以理解的是,本申请中,第二磁石252和第三磁石253也可以为多极磁石,例如四极磁石,本申请对此不做限制。
进一步地,在本申请的一个实施例中,第一防抖线圈271沿长度方向的尺寸大于第二防抖线圈272和第三防抖线圈273沿长度方向的尺寸,以增加第一磁石251与第一防抖线圈271相互作用时产生的磁推力。
在本申请中,磁石部25的第二磁石252和第三磁石253被复用,第二磁石252和第三磁石253既在实现对焦功能的过程中被用于与对焦线圈部26相互作用,也在实现防抖功能的过程中被用于与防抖线圈部27相互作用。即第二磁石252和第三磁石253可以同时提供对焦线圈部26和防抖线圈部27所需要的磁场。
由于第一磁石251不用于驱动对焦线圈部26和对焦载体22移动,因此,第一磁石251在高度方向的尺寸小于第二磁石252和第三磁石253,第一磁石251的顶面的高度也低于第二磁石252和第三磁石253的顶面的高度。
如前述,磁石部25包括第一磁石251、第二磁石252和第三磁石253三个磁石,磁石部25仅设置于驱动装置20的三侧,驱动装置20的其中一侧未设置磁石部25,第一磁石251的对侧未设置磁石。可以理解的是,当本实施例中的驱动装置20在应用到阵列模组中时,另一阵列模组的摄像模组单体可以设置在驱动装置20未设有磁石部25的一侧,这样,驱动装置20的磁石部25不会对相邻的摄像模组造成磁场干扰。
在本申请的另一个实施例中,磁石部25也可以仅包括第一磁石251和第二磁石252两个磁石,此时,防抖线圈部27包括与第一磁石251相对的第一防抖线圈271和与第二磁石252相对的第二防抖线圈272。减少一个磁石(第三磁石253),可以进一步缩小驱动装置20的尺寸,但也使得驱动装置20的驱动力减小,使得在实现对焦功能时,仅有一侧设有用于驱动的对焦线圈261和第二磁石252,由于该对焦线圈261和该第二磁石252之间的相互作用,对焦载体22易于产生相对Z轴(光轴)倾斜的问题,最终造成摄像模组1成像模糊。
在本申请的再一个实施例中,磁石部25可以进一步包括第四磁石,从而使得驱动装置20的四侧均设有磁石,磁石部25包括四个磁石,但是当驱动装置20的四侧均设有磁石时,当驱动装置20被使用在阵列模组中时,位于该驱动装置20相邻侧的摄像模组与第四磁石相邻的一侧不能设置线圈-磁石对,以避免第四磁石对与第四磁石相邻的摄像模组的线圈-磁石对造成电磁干扰。
在本申请的一个实施例中,驱动装置20包括绕其周侧依次设置的第一侧201、第二侧202、第三侧203和第四侧204,其中,第一磁石251被设置于驱动装置20的第一侧201,第二磁石252被设置于驱动装置20的与第一侧201相邻的第二侧202,第三磁石253被设置于驱动装置20的与第二侧202相对的第四侧204,第三侧203不设置有磁石。
如图5和图6所示,对焦线圈261被环绕地设置于驱动装置20的第一侧201、第二侧202、第三侧203和第四侧204,其中,对焦线圈261包括位于第一侧201的第一对焦线圈部 2611、位于第二侧202的第二对焦线圈部2612、位于第三侧203的第三对焦线圈部2613以及位于第四侧204的第四对焦线圈部2614。可见,被设置于同侧的第一对焦线圈部2611处于第一磁石251的磁场范围内,第二对焦线圈部2612处于第二磁石252的磁场范围内,第四对焦线圈部2614处于第三磁石253的磁场范围内,也就是说,在对焦线圈261通电后,第一对焦线圈部2611产生的磁场与第一磁石251的磁场相互作用,第二对焦线圈部2612产生的磁场与第二磁石252的磁场相互作用,第四对焦线圈部2614产生的磁场与第三磁石253的磁场相互作用。
然而,由于本申请中,磁石部25仅设置于驱动装置20的三侧,第一磁石251的对侧未设置磁石,即与第一侧201相对的第三侧203并未设置磁石,这使得在对焦线圈261通电后,仅有对焦载体22的三侧受到驱动力的作用,对焦载体22在非对称力作用下会产生倾斜。
进一步地,对焦载体22在驱动力的作用下会产生沿Z轴方向平移的运动以及绕Z轴方向旋转的运动,即对焦载体22会受到平移推力和旋转推力的作用,而在实现对焦功能时,要尽量减小对焦载体22产生的绕Z轴方向旋转的运动。由于第一磁石251的对侧未设置磁石,当对焦载体22的一侧受到第一磁石251与第一对焦线圈部2611相互作用产生驱动力时,对焦载体22的与该侧相对的另一侧未受到驱动力的作用,即对焦载体22的相对的两侧没有相互对称的力以抵消旋转力的作用,无法减小对焦载体22产生绕Z轴旋转的运动,使得对焦载体22容易产生动态姿势差。
在本申请中,磁石部25的第二磁石252和第三磁石253被复用,而磁石部25的第一磁石251不被复用,即第一磁石251仅在实现防抖功能的过程中被用于与第一防抖线圈271相互作用。因此,可以通过减小第一磁石251与对焦线圈261的第一对焦线圈部2611之间的相互作用,以减小第一磁石251与第一对焦线圈部2611产生的驱动力对对焦载体22的影响,进而避免对焦载体22在非对称力的作用下产生倾斜或旋转等动态姿势差。
如图6所示,在本申请的一个实施例中,对焦线圈261的第一对焦线圈部2611包括与第一磁石251的长度方向相互平行的直边段2611a,以及连接于直边段2611a并与第一磁石251的长度方向呈一定夹角的斜边段2611b、2611c,其中,斜边段2611b、2611c的数量为二,两个斜边段2611b、2611c分别自直边段2611a的两端朝向光轴方向延伸,即第一对焦线圈部2611包括一直边段2611a和连接于直边段2611a的两个斜边段2611b、2611c。在本申请一具体示例中,斜边段2611b、2611c可以为直线段,或者斜边段2611b、2611c也可以为曲线段,本申请对此不做限制。
可以理解的是,一方面,当磁石的磁力线与线圈平面垂直时,穿过线圈的磁通量最大,磁石与线圈之间的有效反应最强。由此可见,第一对焦线圈部2611的直边段2611a与第一磁石251的磁力线相互垂直,当第一对焦线圈部2611的直边段2611a的长度越长时,对焦线圈261穿过的磁力线越多,穿过对焦线圈261的磁通量越大,对焦线圈261与第一磁石251之间的有效反应越强,对焦线圈261与第一磁石251之间的相互作用越强,对对焦载体22的影响越大。
另一方面,沿光轴方向看其平面,即从俯视方向看,第一对焦线圈部2611的直边段2611a距离第一磁石251更近,第一对焦线圈部2611的斜边段2611b、2611c距离第一磁石251更远,即直边段2611a至第一磁石251的距离小于两个斜边段2611b、2611c至第一磁石251的距离,第一对焦线圈部2611的直边段2611a与第一磁石251之间的有效反应更大。当第一对焦线圈部2611的直边段2611a的长度越长时,与之相连的两个斜边段2611b、2611c的长度越短,第一对焦线圈部2611的直边段2611a与第一磁石251之间的相互作用越强,对焦线圈261与第一磁石251之间的相互作用越强,对对焦载体22的影响越大。
综上所述,本申请中通过缩小第一对焦线圈部2611的直边段2611a的长度,来降低第一磁石251与对焦线圈261之间的有效反应。在本申请一具体示例中,第一对焦线圈部2611的直边段2611a的长度小于斜边段2611b、2611c的长度,其中,直边段2611a的长度缩短到最低尺寸。在本申请一具体示例中,直边段2611a的长度范围为:0.1mm-1mm;进一步的,直边段2611a的长度范围为:0.2mm-0.4mm。一方面能够使得对焦线圈261穿过的磁力线减小,对焦线圈261与第一磁石251之间的有效反应降低;另一方面能够使得第一线圈部距离第一磁石251更远,对焦线圈261与第一磁石251之间的相互作用越弱,进而减小了非对称力对对焦载体22的影响。并且,这种设计还可以有效降低非需要区域的电阻值。可以理解的是,直边段2611a的尺寸不能无限小,避免造成对焦线圈261的制造成型更加困难。
在本申请另一具体示例中,对焦线圈261的第一对焦线圈部2611为弧形结构或近似弧形结构,此时第一对焦线圈部2611不具有直边段2611a,更加能够实现降低第一磁石251与对焦线圈261之间的有效反应的效果。
继续参考图6,在本申请的一个实施例中,对焦线圈261为对称结构,即第二对焦线圈部2612与第四对焦线圈部2614对称设置,第一对焦线圈部2611与第三对焦线圈部2613对称设置。在本申请一具体示例中,对焦线圈261的第二对焦线圈部2612仅具有直边段而不具有斜边段,即第二对焦线圈部2612沿第二磁石252的长度方向延伸,与第二磁石252的长度方向平行设置;对焦线圈261的第四对焦线圈部2614仅具有直边段而不具有斜边段,即第四对焦线圈部2614沿第三磁石253的长度方向延伸,与第三磁石253的长度方向平行设置。
第二对焦线圈部2612和第二磁石252之间相互作用产生的磁推力F2,与第四对焦线圈部2614和第三磁石253之间相互作用产生的磁推力F3之和在第一对焦线圈部2611和第一磁石251之间相互作用产生的磁推力F1的20倍以上。也就是说,F2与F3之和跟F1的比值越大,第一对焦线圈部2611和第一磁石251之间相互作用越小,对焦载体22产生非对称力的作用越小,进而避免对焦载体22产生切斜或旋转等运动。
可以理解的是,由于第一磁石251的长度、第二磁石252的长度、第三磁石253的长度、以及第二对焦线圈部2612和第四对焦线圈部2614的长度是由驱动装置20的尺寸决定的。本申请中,通过调整第一对焦线圈部2611的直边段2611a的长度,调整第一对焦线圈部2611和第一磁石251之间相互作用产生的磁推力F1的大小。
其中,在本申请的一个实施例中,载体主体221包括绕其周侧依次设置的第一侧壁 2210、第二侧壁2211、第三侧壁2212和第四侧壁2213,其中,第一侧壁2210和第三侧壁2212相对,第二侧壁2211与第四侧壁2213相对。对焦线圈261围绕载体主体221的第一侧壁2210、第二侧壁2211、第三侧壁2212和第四侧壁2213设置,对焦线圈261的第一对焦线圈部2611位于第一侧壁2210,对焦线圈261的第二对焦线圈部2612位于第二侧壁2211,对焦线圈261的第三对焦线圈部2613位于第三侧壁2212,对焦线圈261的第四对焦线圈部2614位于第四侧壁2213,对焦线圈261的第一对焦线圈部2611、第二对焦线圈部2612、第三对焦线圈部2613、第四对焦线圈部2614与对焦载体22的第一侧壁2210、第二侧壁2211、第三侧壁2212、第四侧壁2213的形状相适配。
在本申请一具体示例中,第一侧壁2210和第三侧壁2212为凹面结构,第一侧壁2210和第三侧壁2212具有朝向光轴的开口,第一侧壁2210和第三侧壁2212相对于对焦载体22的通孔对称设置;第二侧壁2211和第四侧壁2213为平面结构,第二侧壁2211和第四侧壁2213相对于对焦载体22的通孔对称设置。
进一步地,如图2所示,在本申请的一个实施例中,驱动装置20进一步包括一导磁件28,导磁件28被设置于磁石部25与防抖框架23之间,用于增强磁石部25的磁场强度。其中,导磁件28包括第一导磁件281、第二导磁件282和第三导磁件283,第一导磁件281作用于第一磁石251,第二导磁件282作用于第二磁石252,第三导磁件283作用于第三磁石253。在本申请一具体示例中,导磁件28被通过粘接等方式固定于防抖框架23的磁石安置槽232内;在本申请另一具体示例中,导磁件28通过例如嵌件成型等工艺被嵌合于防抖框架23的框架主体231。
第一导磁件281被设置于第一磁石251远离第一防抖线圈271的一侧,即第一导磁件281被设置于第一磁石251的上方,这种设置方式一方面可以使得第一磁石251的磁力线往下方集中,以增加第一磁石251的磁场强度;另一方面也可以避免第一磁石251的磁力外溢,进而避免第一磁石251与对焦线圈261之间相互作用,避免造成对焦载体22受到非对称力的作用。在本申请一具体示例中,第一导磁件281为U型结构,具有朝向第一防抖线圈271的开口,第一导磁件281可以将第一磁石251的顶面和侧面包覆,以避免第一磁石251的磁力外溢。在本申请另一具体示例中,第一导磁件281为平面结构,仅覆盖第一磁石251的顶面。
第二导磁件282被设置于第二磁石252远离对焦线圈261的一侧,即第二导磁件被282设置于第二磁石252远离第二对焦线圈部2612的一侧,从而可以增加第二磁石252面对对焦线圈261一侧的磁场强度。第三导磁件283被设置于第三磁石253远离对焦线圈261的一侧,即第三导磁件283被设置于第三磁石253远离第四对焦线圈部2614的一侧,从而可以增加第三磁石253面对对焦线圈261一侧的磁场强度。进一步的,第二磁石252还可以通过与第二导磁件282之间的磁吸作用被固定于第二导磁件282,或者第二磁石252通过与第二导磁件282之间的磁吸作用被更牢固的吸附在框架主体231上;第三磁石253也可以通过与第三导磁件283之间的磁吸作用被固定于第三导磁件283或者被更牢固的吸附在框架主体231上。
可以理解的是,在本申请中,导磁件28可以不含有磁性,如导磁件28可以由铁氧体 制成,或者,导磁件28本身可以为永磁体,本申请对此不做限制。
如图2、图4、图7至图11所示,在本申请的一个实施例中,悬持部24被设置于对焦载体22、防抖框架23和底座212,以使得对焦载体22被悬持地设置于防抖框架23中,防抖框架23被悬持地设置于底座212中。其中,悬持部24包括一第一悬持部241和一侧悬持部242,第一悬持部241连接对焦载体22和防抖框架23之间,用于限制对焦载体22沿光轴方向的运动,对焦载体22藉由第一悬持部241悬置于防抖框架23内;侧悬持部242连接防抖框架23和底座212之间,用于限制防抖框架23沿垂直于光轴方向(X轴方向和Y轴方向)的运动,防抖框架23藉由侧悬持部242悬置于底座212内。
具体地,在本申请的一个实施例中,第一悬持部241包括沿光轴方向被间隔地设置于驱动装置20的一第一弹片2414和一第二弹片2415,第一弹片2414被设置于对焦载体22的物侧,第二弹片2415被设置于对焦载体22的的像侧,以将对焦载体22可复位地悬持于防抖框架23内,对焦载体22在第一弹片2414和第二弹片2415的作用下被悬置于防抖框架23内。
其中,第一弹片2414和第二弹片2415的整体呈薄片状结构,第一弹片2414分别连接于防抖框架23的顶面和对焦载体22的顶面,第二弹片2415分别连接于防抖框架23的底面和对焦载体22的底面,以对对焦载体22的移动进行支撑和限位,不仅有助于改善驱动装置20的结构稳定性,也能够使得对焦载体22在一定的行程范围内进行移动。
更具体地,在本申请的一个实施例中,第一悬持部241包括被固定于防抖框架23的外廓2411,被固定于对焦载体22的内廓2412,以及一体地连接外廓2411和内廓2412的变形部2413。其中,变形部2413自外廓2411弯折地延伸至内廓2412,以便为对焦载体22的移动预留出足够的空间,不仅可以为对焦载体22的移动行程提供保障,也可以减小对焦载体22的驱动阻力,改善驱动装置20的光学对焦灵敏度。
可以理解的是,当变形部2413的长度越长,变形部2413的弯折越多,则变形部2413在产生形变后其本身的变形很小,在变形部2413受到拉伸后更容易复位。在本申请一个具体示例中,变形部2413为由弹性材料(如橡胶、塑料等)制成的弹性线状结构;在本申请另一个具体示例中,变形部2413也可以是由刚性材料(如金属等)制成的弹性线状结构。
第一弹片2414的外廓2411被固定于防抖框架23的顶面,第一弹片2414的内廓2412被固定于对焦载体22的顶面,第一弹片2414的变形部2413一体地连接第一弹片2414的外廓2411和第一弹片2414的内廓2412;第二弹片2415的外廓2411被固定于防抖框架23的底面,第二弹片2415的内廓2412被固定于对焦载体22的底面,第二弹片2415的变形部2413一体地连接第二弹片2415的外廓2411和第二弹片2415的内廓2412。这种设置方式使得对焦载体22被夹持于第一弹片2414和第二弹片2415之间,使得对焦载体22被悬持于防抖框架23内。
第一弹片2414的内廓2412和外廓2411可以通过但不限于诸如粘接或者热铆的方式被固定地附着于对焦载体22和防抖框架23上;第二弹片2415的内廓2412和外廓2411可以通过但不限于诸如粘接或热铆的方式被固定地附着于对焦载体22和防抖框架23上。当对焦载体22被驱动沿Z轴方向移动时,第一弹片2414和第二弹片2415发生形变以积蓄弹性力,当对 焦载体22被停止驱动时,第一弹片2414和第二弹片2415积蓄的弹性力得以释放,进而带动对焦载体22回复原位。
进一步地,在本申请的一个实施例中,第一弹片2414可以具有一体式结构,第二弹片2415具有分体式结构,第二弹片2415可以用于实现驱动装置20的电路导通;第一弹片2414在被安装的过程中可以始终保持较好的一致性,使得第一弹片2414的整个平面产生较少的安装公差。在本申请的另一个实施例中,第一弹片2414具有分体式结构,第二弹片2415具有分体式结构,第一弹片2414和第二弹片2415均可以用于实现驱动装置20的电路导通。
第一弹片2414为对称结构,当对焦载体22沿Z轴方向移动时,对称的第一弹片2414能够抑制对焦载体22产生绕Z轴旋转的运动。在本申请一具体示例中,第一弹片2414为分体式结构,其包括被设置于对焦载体22和防抖框架23四角的四个第一弹片部件,以对对焦载体22提供更加平稳的支撑,还能够为对焦载体22提供对称的回复力。在本申请另一具体示例中,第一弹片2414为分体式结构,其包括被对称地设置于对焦载体22和防抖框架23之间的两个第一弹片部件;或者,在本申请再一具体示例中,第一弹片2414为一体式结构,其具有一个共同的内廓2412、四个外廓2411和四个变形部2413。
第二弹片2415为对称结构,当对焦载体22沿Z轴方向移动时,对称的第二弹片2415能够抑制对焦载体22产生绕Z轴旋转的运动。在本申请一具体示例中,第二弹片2415为分体式结构,其包括两个轴对称设置的两个部分,即第一下弹片24151和第二下弹片24152,轴对称的第二弹片2415可以进一步提高第二弹片2415的平整性,以减小驱动装置20的倾斜公差,提高驱动装置20的组装精度。在本申请一具体示例中,第一下弹片24151和第二下弹片24152沿第二磁石252和第三磁石253的长度方向延伸,第一下弹片24151和第二下弹片24152相对于第一磁石251的中线对称分布。即第一下弹片24151和第二下弹片24152被对称地设置于对焦载体22的底面。
在本申请的一个实施例中,第二弹片2415的每个部分,即第一下弹片24151和第二下弹片24152分别具有两个外廓2411,两个变形部2413和一个内廓2412,其中,内廓2412的一端连接一个变形部2413,该变形部2413的另一端连接一个外廓2411;内廓2412的另一端连接另一个变形部2413,该变形部2413的另一端连接另一个外廓2411。也就是说,第一下弹片24151和第二下弹片24152的结构为:外廓2411、变形部2413、内廓2412、变形部2413、外廓2411。
具体地,第二弹片2415的第一下弹片24151包括第一外廓2411a、第二外廓2411b、第一内廓2412a、连接第一内廓2412a和第一外廓2411a的第一变形部2413a、以及连接第一内廓2412a和第二外廓2411b的第二变形部2413b。
其中,第一内廓2412a被固定于对焦载体22,第一外廓2411a和第二外廓2411b被固定于防抖框架23。在本申请一具体示例中,第一外廓2411a和第二外廓2411b被固定于防抖框架23相对的两侧,例如第一侧201和与之相对的第三侧203。
第二弹片2415的第二下弹片24152包括第三外廓2411c、第四外廓2411d、第二内廓 2412b、连接第二内廓2412b和第三外廓2411c的第三变形部2413c、以及连接第二内廓2412b和第四外廓2411d的第四变形部2413d。其中,第二内廓2412b被固定于对焦载体22,第三外廓2411c和第四外廓2411d被固定于防抖框架23。在本申请一具体示例中,第三外廓2411c和第四外廓2411d被固定于防抖框架23相对的两侧,例如第一侧201和与之相对的第三侧203。
第二弹片2415的第一下弹片24151和第二下弹片24152被相对地设置于靠近第二磁石252和第三磁石253的一侧。第二磁石252与第三磁石253被设置于对焦线圈261相对的两侧,对焦线圈261通电后第二磁石252和第三磁石253与对焦线圈261相互作用,产生对称的作用力驱动对焦线圈261和对焦载体22沿光轴方向移动。第二弹片2415的第一下弹片24151和第二下弹片24152由此可以产生对称的复位力,以使得对焦载体22能够平稳移动。
如图10和图11所示,在本申请的一个实施例中,侧悬持部242被设置于防抖框架23和底座212的侧壁。第一弹片2414被设置于防抖框架23的顶面,第二弹片2415被设置于防抖框架23的底面,侧悬持部242自防抖框架23的底面延伸至防抖框架23的侧面。侧悬持部242的一端连接于防抖框架23,侧悬持部242的另一端连接于底座212,以对防抖框架23进行支撑和限位,不仅有助于改善驱动装置20的结构稳定性,也能够使得防抖框架23在一定的行程范围内进行移动和复位。
其中,参考图7至图10,侧悬持部242包括至少两个侧弹片,每个侧弹片包括连接于防抖框架23的第一连接端2425,连接于底座212的第二连接端2426,以及一体地连接第一连接端2425和第二连接端2426的弹性变形部2427。其中,弹性变形部2427包括多个相互连接的沿X方向延伸弯折段以及多个相互连接的沿Y方向延伸弯折段,其中,多个相互连接的沿X方向延伸弯折段与多个相互连接的沿Y方向延伸弯折段相互连接。弹性变形部2427受到X方向和Y方向的拉伸后产生形变,以在X方向和Y方向产生相应的复位力,使得防抖框架23在侧悬持部242的作用下回复原位(原位即防抖框架23在移动前的位置)。
侧悬持部242具有相互垂直或近似垂直的平面结构242a和竖立结构242b,第一连接端2425和第二连接端2426延水平方向延伸形成平面结构242a,弹性变形部2427沿高度方向延伸形成竖立结构242b。即侧悬持部242包括连接防抖框架23和底座212的平面结构242a,以及自平面结构242a弯折并沿高度方向延伸的竖立结构242b。在本申请一具体示例中,平面结构242a沿水平方向延伸一体地连接第二弹片2415,竖立结构242b自平面结构242a弯折并沿高度方向延伸。也可以说,多个侧弹片由第二弹片2415所在的水平面沿高度方向向上弯折形成。
第一连接端2425与弹性变形部2427之间具有一弯折部2428,第二连接端2426与弹性变形部2427之间具有一弯折部2428,以将侧悬持部242由水平方向延伸弯折为高度方向延伸。
在本申请的一个实施例中,侧悬持部242包括四个侧弹片,四个侧弹片中的两个侧弹片被设置于防抖框架23的一侧,四个侧弹片中的另外两个侧弹片被对称地设置于防抖框架23与该侧相对的另一侧。例如,在本申请一具体示例中,四个侧弹片中的两个侧弹片被设置于第 一侧201,四个侧弹片中的另外两个侧弹片被对称地设置于与第一侧201相对的第三侧203。
进一步地,在本申请的一个实施例中,四个侧弹片的弹性变形部2427被对称地设置于防抖框架23上第一磁石251所在的一侧以及与该侧相对的另一侧,例如第一侧201和第三侧203。
其中,位于同侧的两个侧弹片的弹性变形部2427所在的平面相互重合;位于对侧的两个侧弹片的弹性变形部2427所在的平面相互平行。例如,在本申请一具体示例中,四个侧弹片中的两个侧弹片的弹性变形部2427位于第一侧201,位于该侧的两个侧弹片的弹性变形部2427相互重合;四个侧弹片中的另外两个侧弹片的弹性变形部2427位于第三侧203,位于该侧的两个侧弹片的弹性变形部2427相互重合;位于第一侧201的一个侧弹片的弹性变形部2427所在的平面与位于第三侧203的一个侧弹片的弹性变形部2427所在的平面相互平行。
每个侧弹片的弹性变形部2427形成的竖立结构242b所在的平面与第一磁石251的长度方向平行。沿高度方向看其平面,每个侧弹片的弹性变形部2427形成的竖立结构242b的长度方向与第一磁石251的长度方向相同。
如图8A和图8B所示,图8B是图8A的圆形区域A的放大示意图,沿高度方向看其平面,即从俯视的角度看,竖立结构242b沿第一磁石251的长度方向具有一定宽度W1,竖立结构242b沿第一磁石252的宽度方向(或者说沿第二磁石252和第三磁石253的长度方向)具有一定的宽度W2,其中,竖立结构242b沿第一磁石251的长度方向的宽度W1大于竖立结构242b沿第二磁石252或第三磁石253的长度方向的宽度W2,也就是W1>W2。
第一磁石251的长度方向为X轴方向,第二磁石252或第三磁石253的长度方向为Y轴方向,由此可见侧悬持部242的弹性变形部2427沿X轴方向和沿Y轴方向的宽度不同,因此侧悬持部242的弹性变形部2427的X轴方向的K值和Y轴方向的K值有较大差异。沿高度方向看其平面,弹性变形部2427宽度较小的方向K值较小,弹性变形部宽度较大的方向K值较大。
其中,沿高度方向看其平面,即从俯视的角度看,弹性变形部2427宽度较小的方向与防抖线圈部27驱动第一磁石251移动的方向相同;弹性变形部2427宽度较大的方向与防抖线圈部27驱动第二磁石252或第三磁石253移动的方向相同。
在本申请一具体示例中,侧悬持部242的弹性变形部2427的沿Y轴方向的宽度较小,弹性变形部2427的K值较小,其在较小的驱动力的作用下就可产生形变,因此在沿X轴方向配置第一磁石251,通过第一磁石251和第一防抖线圈271作用产生沿Y轴方向的驱动力驱动弹性变形部2427发生形变;侧悬持部242的弹性变形部2427的沿X轴方向的宽度较大,其在较大的驱动力的作用下可产生形变,因此在沿Y轴方向配置第二磁石252和第三磁石253,第二磁石252、第三磁石253与第二防抖线圈272、第三防抖线圈273相互作用产生沿X轴方向的驱动力驱动弹性变形部2427发生形变。
进一步地,沿高度方向看其平面,弹性变形部2427宽度较小的方向与第一磁石251 被驱动的方向相同;弹性变形部2427宽度较大的方向与第二磁石252或第三磁石253被驱动的方向相同。在本申请一具体示例中,弹性变形部2427宽度较小的方向为Y轴方向,第一磁石251与第一防抖线圈271相互作用产生驱动力的方向为Y轴方向;弹性变形部2427宽度较大的方向为X轴方向,第二磁石252、第三磁石253与第二防抖线圈272、第三防抖线圈273相互作用产生驱动力的方向为X轴方向。
这种设置方式可根据弹性变形部2427的沿X轴方向和Y轴方向的薄厚确定在该方向配置的磁石,一方面使得侧悬持部242的各个部分的功能得到更加充分的利用,另一方面当本实施例中的驱动装置20在应用到阵列模组中时,本实施例中的摄像模组1侧可近距离的放置另一阵列模组的摄像模组单体,而不会产生干涉,本申请的设置方式还有助于降低成本。
在本申请中,侧悬持部242的各个侧弹片可以与第一弹片2414或第二弹片2415连接为一体。可以理解的是,侧悬持部242的各个侧弹片可以是在与第一弹片2414或第二弹片2415一体成型后再次弯折而形成,侧悬持部242的各个侧弹片也可以是先制造成型后再通过焊接等方式连接于第一弹片2414或第二弹片2415,本申请对此不做限制。
然而,当侧悬持部242与第一弹片2414连接于一体时,侧悬持部242靠近于驱动装置20的物侧,侧悬持部242的承靠面更高。若底座212的高度较低,则需要将侧悬持部242的弹性变形部2427延伸较长的长度,以使得侧悬持部242的第二连接端2426可以连接于底座212。而这种情况会造成侧悬持部242的弹性变形部2427延伸的长度很长,可控性较低,在制造过程中难度更大;若增加底座212的高度,将其朝向物侧延伸,则会造成底座212的可靠性较低,进而会降低整个驱动装置20的可靠性。进一步的,若通过第一弹片2414和侧悬持部242实现驱动装置20的电路导通,则会造成导电结构更加复杂,使得成本增加。
在本申请中,采用将侧悬持部242与第二弹片2415连接于一体的结构,即侧悬持部242与第二弹片2415连接于一体,侧悬持部242自驱动装置20的像侧朝向物侧方向延伸,侧悬持部242自防抖框架23的底面延伸至防抖框架23的侧面,防抖框架23在侧悬持部242的作用下被悬置于底座212内。进一步地,侧悬持部242的第二连接端2426通过但不限于诸如粘接或者热铆的方式被固定地附着于底座212的底座凸台2123上,侧悬持部242的第一连接端2425通过连接于第二弹片2415的方式被间接地固定于防抖框架23。
其中,底座凸台2123上连接第二连接端2426的位置所在的平面低于防抖框架23上连接第一连接端2425的位置所在的平面。这种设置方式使得侧悬持部242在底座212上的承靠面可以做的更低,使得底座212的成型更加简单而且可靠性更高。
进一步地,侧悬持部242在防抖框架23侧面延伸的高度低于防抖框架23的顶面,也就是说当侧悬持部242与第二弹片2415连接于一体,侧悬持部242的弹性变形部2427沿高度方向的延伸长度可以进一步缩短,进而使得侧悬持部242的可控性更高,制造成型更加简单。当然,第二弹片2415更靠近于底座212,可以使用更加简单的导电结构实现驱动装置20的电路导通。
可以理解的是,本申请中的侧悬持部242的弹性变形部2427沿高度方向朝向物侧延伸, 由于弹性变形部2427的延伸高度较短,与现有技术相比,本申请取消了在弹性变形部2427的顶端设置阻尼胶,在驱动装置20中减少了设置阻尼胶所需要的空间,进而实现了驱动装置20尺寸的减小。
侧悬持部242与第二弹片2415为一体式结构,侧悬持部242进行弯折可以使得侧悬持部242和第二弹片2415的K值(弹性系数)明显上升,进而支撑整个防抖框架23,使得防抖框架23被悬持于底座212内。进一步的,侧悬持部242的弹性变形部2427可以延伸较小的高度,有助于降低成本。
如图7和图9所示,在本申请的一个实施例中,侧悬持部242包括一第一侧弹片2421、一第二侧弹片2422、一第三侧弹片2423和一第四侧弹片2424。其中,第一侧弹片2421、第二侧弹片2422与第二弹片2415的第一下弹片24151连接于一体以形成第一下悬持组件2401,第三侧弹片2423、第四侧弹片2424和第二弹片2415的第二下弹片24152连接于一体以形成第二下悬持组件2402,其中,第一下悬持组件2401和第二下悬持组件2402被对称地设置。即第一侧弹片2421和第二侧弹片2422被设置于驱动装置20的一侧,第三侧弹片2423和第四侧弹片2424被设置于驱动装置20的与该一侧相对的另一侧,以使得防抖框架23移动后受到对称的复位力作用。在本申请一具体示例中,第一侧弹片2421和第二侧弹片2422分别位于靠近第二磁石252的一侧,第三侧弹片2423和第四侧弹片2424分别位于靠近第三磁石253的一侧。即第一下悬持组件2401沿第二磁石252的长度方向延伸,第二下悬持组件2402沿第三磁石253的长度方向延伸,第一下悬持组件2401和第二下悬持组件2402相互对称。
具体地,第一侧弹片2421的第一连接端2425通过连接第二弹片2415的第一外廓2411a间接地连接于防抖框架23,第一侧弹片2421的第二连接端2426直接连接于底座212;第二侧弹片2422的第一连接端2425通过连接第二弹片2415的第二外廓2411b间接地连接于防抖框架23,第二侧弹片2422的第二连接端2426连接于底座212;第三侧弹片2423的第一连接端2425通过连接第二弹片2415的第三外廓2411c间接地连接于防抖框架23,第三侧弹片2423的第二连接端2426直接连接于底座212;第四侧弹片2424的第一连接端2425通过连接第二弹片2415的第四外廓2411d间接地连接于防抖框架23,第四侧弹片2424的第二连接端2426直接连接于底座212。
其中,第一侧弹片2421的第二连接端2426、第二侧弹片2422的第二连接端2426、第三侧弹片2423的第二连接端2426和第四侧弹片2424的第二连接端2426固定于底座凸台2123,以使得的第一侧弹片2421、第二侧弹片2422、第三侧弹片2423和第四侧弹片2424连接于底座212。
参考图9,在本申请的一个实施例中,第二弹片2415的至少一部分与侧悬持部242的至少一部分形成下悬持组件,也可以说,驱动装置20包括至少一下悬持组件,下悬持组件包括下弹片和一体地连接于下弹片的至少两个侧弹片,至少一下悬持组件被设置于底座212与防抖框架23之间,用于对防抖框架23进行支撑和限位。可以理解的是,在本申请中,下弹片和两个侧弹片的结构均可以沿用前述侧悬持部242和第二弹片2415的结构。
其中,下悬持组件的数量为至少两个,至少两个下悬持组件被对称地设置于防抖框架23的底面,防抖框架23在下悬持组件的作用下被悬置于底座212内。当驱动组件驱动防抖框架23相对于底座212移动时,下悬持组件的至少两个侧弹片发生形变以积蓄弹性力,当对防抖框架23被停止驱动时,下悬持组件的至少两个侧弹片积蓄的弹性力得以释放,进而带动防抖框架23回复原位。
在本申请一具体示例中,下悬持组件的数量为二,包括第一下悬持组件2401和第二下悬持组件2402。其中,下弹片包括第一下弹片24151和第二下弹片24152,至少两个侧弹片包括第一侧弹片2421、第二侧弹片2422、第三侧弹片2423和第四侧弹片2424,第一侧弹片2421、第二侧弹片2422和第一下弹片24151连接于一体形成第一下悬持组件2401;第三侧弹片2423、第四侧弹片2424和第二下弹片24152连接于一体形成第二下悬持组件2402。第一下悬持组件2401和第二下悬持组件2402被对称地设置于防抖框架23和底座212之间,以为防抖框架23提供更加对称的复位力。
可以理解的是,在本申请中,至少两个侧弹片包括连接底座212和下弹片的平面结构242a,自平面结构242a弯折并沿高度方向延伸的竖立结构242b,以及连接平面结构242a和竖立结构242b的弯折部2428,其中,至少两个侧弹片的平面结构242a位于弯折部2428的同一侧。也可以说,当至少一下悬持组件被平铺于水平面上,每个侧弹片的平面结构242a被设置于竖立结构242b的同一侧,每个侧弹片的竖立结构242b从平面结构242a的同一侧沿同一方向弯折,这种设置方式可以提高至少一下悬持组件的一致性,也可以提高至少一下悬持组件的平整度。
下弹片被设置于至少两个侧弹片之间,下弹片包括一个内廓2412、连接于一个内廓2412的两个变形部2413、以及连接于两个变形部2413的两个外廓2411,两个侧弹片的平面结构242a沿同一方向延伸,并分别连接于两个外廓2411。
具体地,每个侧弹片包括连接于下弹片2415的外廓2411的第一连接端2425,连接于底座212的第二连接端2426,以及一体地连接第一连接端2425和第二连接端2426的弹性变形部2427,第一连接端2425和第二连接端2426延水平方向延伸形成平面结构242a,弹性变形部2427沿高度方向延伸形成竖立结构242b。
更具体地,第一连接端2425与弹性变形部2427之间具有一弯折部2428,第二连接端2426与弹性变形部2427之间具有一弯折部2428,弯折部2428将每个侧弹片由水平方向延伸沿同一方向弯折为高度方向延伸。
继续参考图9,在本申请的一个实施例中,第一侧弹片2421和第二侧弹片2422的平面结构242a均位于弯折部2428的同一侧,第一侧弹片2421和第二侧弹片2422沿同一方向弯折;第三侧弹片2423和第四侧弹片2424的平面结构242a均位于弯折部2428的同一侧,第三侧弹片2423和第四侧弹片沿同一方向弯折。在本申请的另一个实施例中,第一侧弹片2421、第二侧弹片2422、第三侧弹片2423、第四侧弹片2424的平面结构242a均位于弯折部2428的同一侧,第一侧弹片2421、第二侧弹片2422、第三侧弹片2423、第四侧弹片2424均沿同一 方向弯折。
其中,与下弹片连接于一体的两个侧弹片沿相同方向延伸,两个侧弹片的弹性变形部2427均位于第一连接端2425和第二连接端2426的同一侧,也可以说,两个侧弹片的弹性变形部2427弯折方向一致。例如,在本申请一具体示例中,形成第一下悬持组件2401的第一侧弹片2421和第二侧弹片2422的平面结构242a设置于竖立结构242b的同一侧,即第一侧弹片2421和第二侧弹片2422沿同一方向弯折;形成第二下悬持组件2402的第三侧弹片2423和第四侧弹片2424的平面结构242a设置于竖立结构242b的同一侧,即第三侧弹片2423和第四侧弹片2424沿同一方向弯折。
可以理解的,在本申请中,也可以将第一侧弹片2421、第二侧弹片2422、第三侧弹片2423、第四侧弹片2424的平面结构242a设置于竖立结构242b的同一侧,即第一侧弹片2421、第二侧弹片2422、第三侧弹片2423和第四侧弹片2424均沿同一方向弯折。
在本身申请中,沿同一方向弯折的结构设计,可以有效改善弯折治具的设计难度,使得侧悬持部242或至少两个侧弹片或下悬持组件更加容易脱模,使得良率提升,成本下降。这是由于为了保证弹性变形部2427可折弯在90°±3°以内,治具设计必须折弯过100°,弹性变形部2427回弹后才能控制在90°附近;若弹性变形部2427的弯折方向不一致,则会造成因治具折弯方向不同而无法脱模,使得良率下降,成本增加。
在本申请一具体示例中,第一侧弹片2421与第二侧弹片2422沿Y轴方向延伸,第一侧弹片2421的竖立结构242b位于平面结构242a的左侧,第一侧弹片2421的弯折部2428位于平面结构242a的左侧;第二侧弹片2422的竖立结构242b位于平面结构242a的左侧,第二侧弹片2422的弯折部2428位于平面结构242a的左侧,第一侧弹片2421的竖立结构242b和第二侧弹片2422的竖立结构242b分别从平面结构242a的左侧沿水平方向朝向高度方向弯折。也就是说,第一侧弹片2421的弹性变形部2427位于第一侧弹片2421的第一连接端2425和第二连接端2426的左侧,第二侧弹片2422的弹性变形部2427位于第二侧弹片2422的第一连接端2425和第二连接端2426的左侧,第一侧弹片2421的弹性变形部2427和第二侧弹片2422的弹性变形部2427均从左侧沿水平方向朝向高度方向弯折。当然,第一侧弹片2421的弹性变形部2427和第二侧弹片2422的弹性变形部2427也可以均从右侧沿水平方向朝向高度方向弯折,本申请对此不做限制。
同理,第三侧弹片2423与第四侧弹片2424沿Y轴方向延伸,第三侧弹片2423的竖立结构242b位于平面结构242a的左侧,第三侧弹片2423的弯折部2428位于平面结构242a的左侧;第四侧弹片2424的竖立结构242b位于平面结构242a的左侧,第四侧弹片2424的弯折部2428位于平面结构242a的左侧,第三侧弹片2423的竖立结构242b和第四侧弹片2424的竖立结构242b从平面结构242a的左侧沿水平方向朝向高度方向弯折。也就是说,第三侧弹片2423的弹性变形部2427位于第三侧弹片2423的第一连接端2425和第二连接端2426的左侧,第四侧弹片2424的弹性变形部2427位于第四侧弹片2424的第一连接端2425和第二连接端2426的左侧,第三侧弹片2423的弹性变形部2427和第四侧弹片2424的弹性变形部2427 均从左侧沿水平方向朝向高度方向弯折。当然,第三侧弹片2423的弹性变形部2427和第四侧弹片2424的弹性变形部2427也可以均从右侧沿水平方向朝向高度方向弯折,本申请对此不做限制如图7、图8A和图10所示,第一侧弹片2421的弹性变形部2427所在的平面与第二侧弹片2422的弹性变形部2427所在的平面相互平行,第三侧弹片2423的弹性变形部2427所在的平面与第四侧弹片2424的弹性变形部2427所在的平面相互平行,四个侧弹片的弹性变形部2427被设置于第一磁石251所在的一侧和与该侧相对的另一侧。
第一侧弹片2421的弹性变形部2427位于第一磁石251所在的一侧,例如第一侧201,第一侧弹片2421的弹性变形部2427所在的平面与第一磁石251的长度方向平行;第二侧弹片2422的弹性变形部2427位于与第一磁石251所在的一侧相对的另一侧,例如与第一侧201相对的第三侧203,第二侧弹片2422的弹性变形部2427所在的平面与第一侧弹片2421的弹性变形部2427所在的平面互相平行;第一下弹片24152位于防抖框架23的底面并靠近第四侧204。
进一步地,第三侧弹片2423的弹性变形部2427位于第一磁石251所在的一侧,例如第一侧201,第三侧弹片2423的弹性变形部2427所在的平面与第一磁石251的长度方向平行;第四侧弹片2424的弹性变形部2427位于与第一磁石251所在的一侧相对的一侧,例如与第一侧201相对的第三侧203,第四侧弹片2424的弹性变形部2427所在的平面与第三侧弹片2423的弹性变形部2427所在的平面互相平行;第二下弹片24151位于防抖框架23的底面并靠近第二侧202。
也就是说,第一侧弹片2421和第三侧弹片2423被设置于第一磁石251的同侧,第二侧弹片2422和第四侧弹片2424被设置于第一磁石251的对侧,第一侧弹片2421的弹性变形部2427所在的平面、第二侧弹片2422的弹性变形部2427所在的平面、第三侧弹片2423的弹性变形部2427所在的平面、第四侧弹片2424的弹性变形部2427所在的平面,与第一磁石251的长度方向平行,以为防抖框架23提供更加对称的复位力。
值得一提的是,本申请中,可通过被设置于第一磁石251对侧的第二侧弹片2422和第四侧弹片2424实现驱动装置20的电路导通,可以提高驱动装置20的空间利用率。当然,也可以通过第一侧弹片2421、第二侧弹片2422、第三侧弹片2423和第四侧弹片2424实现驱动装置20的电路导通,本申请对此不做限制。
其中,如图4所示,框架主体231进一步包括被设置于其四个转角处的第一缩口2311、第二缩口2312、第三缩口2313和第四缩口2314,第一缩口2311、第二缩口2312、第三缩口2313和第四缩口2314可以自第一侧201和第三侧203向内凹陷形成,也可以自第二侧202和第四侧204向内凹陷形成。第一缩口2311、第二缩口2312、第三缩口2313和第四缩口2314可以为第一侧弹片2421、第二侧弹片2422、第三侧弹片2423和第四侧弹片2424提供安置空间,即缩口的凹陷方向与第一侧弹片2421、第二侧弹片2422、第三侧弹片2423和第四侧弹片2424的延伸方向相同。
进一步地,第一侧弹片2421的弹性变形部2427、第二侧弹片2422的弹性变形部2427、 第三侧弹片2423的弹性变形部2427和第四侧弹片2424的弹性变形部2427被设置于框架主体231的第一缩口2311、第二缩口2312、第三缩口2313和第四缩口2314内,以避免四个侧弹片的弹性变形部2427在形变中由于碰触到防抖框架23而发生损坏。也就是说,每个侧弹片的仅有两个固定端,每个侧弹片的弹性变形部2427的端点是悬空的,并不与其他结构相互接触。
综上所述,对焦载体22的物侧设置有沿水平方向延伸的第一弹片2414,对焦载体22的像侧设置有沿水平方向延伸的第二弹片2415和与第二弹片2415连接于一体的沿高度方向延伸的多个侧弹片。多个侧弹片由第二弹片2415所在的水平面沿高度方向向上弯折形成,多个侧弹片所在平面与驱动装置20内安装的光学镜头10的调焦轴线平行设置,即与光轴平行设置,因此多个侧弹片的弹性变形方向与光学镜头10的径向方向一致,用于实现防抖功能;同理,第一弹片2414和第二弹片2415沿光学镜头10的径向方向设置,其弹性变形方向与光学镜头10的光轴方向一致,用于实现对焦功能。
如图1、图2、图4和图11所示,在本申请的一个实施例中,驱动装置20进一步包括一防抖线路板29,防抖线路板29被设置于底座212,防抖线圈部27被设置于并电连接于防抖线路板29,用于实现防抖线圈部27与防抖线路板29之间的电路导通。
进一步地,在本申请的一个实施例中,侧悬持部242进一步包括一电连接部2429,电连接部2429自第二连接端2426一体地向下弯折并延伸至防抖线路板29,以通过第二弹片2415、侧悬持部242实现对焦线圈261与防抖线路板29之间的电路导通。
对焦线圈261被设置于对焦载体22,对焦载体22的侧壁具有至少两个绕线柱222,对焦线圈261的一端缠绕于对焦载体22,对焦线圈261的另一端绕线于绕线柱222上。被设置于绕线柱222上的对焦线圈261可以与第二弹片2415相互接触,第二弹片2415一体连接于侧悬持部242的第一连接端2425,侧悬持部242通过一体连接的第二连接端2426和电连接部2429将防抖线路板29中的电流导通至对焦线圈261。
侧悬持部242中的至少两个侧弹片设置有电连接部2429,设置电连接部2429的侧弹片可以被设置于与第一磁石251相对的一侧,以避免对第一磁石251的设置产生干涉,提高了驱动装置20的空间利用率。在本申请一具体示例中,被设置于第一磁石251对侧的第二侧弹片2422和第四侧弹片2424设置有电连接部2429,即第二侧弹片2422的电连接部2429自第二侧弹片2422的第二连接端2426一体向下弯折延伸,电连接于防抖线路板29;第四侧弹片2424的电连接部2429自第四侧弹片2424的第二连接端2426一体向下弯折延伸,电连接于防抖线路板29。
由于第二弹片2415和多个侧弹片与防抖线路板29的距离更近,因此可以降低驱动装置20电路的复杂程度,进而可降低成本。
可以理解的是,防抖线路板29可以向下延伸电连接于感光组件30的芯片线路板32,以实现驱动装置20的电路导通。当然,防抖线路板29也可以直接向外延伸至电子设备(例如手机)的主板,直接电连接于电子设备主板,以实现驱动装置20与感光组件30的单独控制。
在本申请的一个实施例中,驱动装置20进一步包括位置感测部(未示出),位置感测元件可以为霍尔元件、驱动IC或TMR。位置感测部包括对焦位置感测部(未示出)和防抖位置感测部(未示出)。其中,对焦位置感测部与第二磁石252或第三磁石253相对设置,当对焦载体22移动时,对焦位置感测部与第二磁石252或第三磁石253的相对位置发生变化,根据对焦位置感测部感测到的第二磁石252或第三磁石253的磁场强弱,可以确定对焦载体22的位置,进而调整对焦线圈261的电流以使得对焦载体22移动到需要的位置。
防抖位置感测部与第一磁石251相对设置,以及防抖位置感测部与第二磁石252或第三磁石253相对设置,当防抖框架23移动时,防抖位置感测部与第一磁石251、第二磁石252或第三磁石253的相对位置发生变化,根据防抖位置感测部感测到的第一磁石251、第二磁石252或第三磁石253的磁场强弱,可以确定防抖框架23的位置,进而调整防抖线圈部27的电流以使得防抖框架23移动到需要的位置。
以上描述了本申请的基本原理、主要特征和本申请的优点。本行业的技术人员应该了解,本申请不受上述实施例的限制,上述实施例和说明书中描述的只是本申请的原理,在不脱离本申请精神和范围的前提下本申请还会有各种变化和改进,这些变化和改进都落入要求保护的本申请的范围内。本申请要求的保护范围由所附的权利要求书及其等同物界定。

Claims (40)

  1. 一种驱动装置,其特征在于,包括:
    底座;
    防抖框架,所述防抖框架被可活动地连接于所述底座;
    对焦载体,所述对焦载体被可活动地连接于所述防抖框架;
    第一悬持部,所述第一悬持部连接所述对焦载体和所述防抖框架,所述第一悬持部包括被间隔地设置于所述对焦载体物侧和像侧的第一弹片和第二弹片,所述对焦载体在所述第一弹片和所述第二弹片的作用下被悬置于所述防抖框架内;
    侧悬持部,所述侧悬持部连接所述防抖框架与所述底座,其中,所述侧悬持部与所述第二弹片连接于一体,自所述驱动装置的像侧朝向物侧方向延伸,所述防抖框架在所述侧悬持部的作用下被悬置于所述底座内;以及
    驱动组件,所述驱动组件驱动所述对焦载体和所述防抖框架运动。
  2. 根据权利要求1所述的驱动装置,其中,所述第一弹片被设置于所述防抖框架的顶面,所述第二弹片被设置于所述防抖框架的底面,所述侧悬持部自所述防抖框架的底面延伸至所述防抖框架的侧面,所述侧悬持部沿所述防抖框架的侧面延伸的高度低于所述防抖框架的顶面。
  3. 根据权利要求2所述的驱动装置,其中,所述侧悬持部包括至少两个侧弹片,每个所述侧弹片包括连接于所述防抖框架的第一连接端,连接于所述底座的第二连接端,以及一体地连接所述第一连接端和所述第二连接端的弹性变形部,所述第一连接端和所述第二连接端沿水平方向延伸形成平面结构,所述弹性变形部沿高度方向延伸形成竖立结构。
  4. 根据权利要求3所述的驱动装置,其中,所述平面结构和所述竖立结构相互垂直或近似相互垂直,所述平面结构沿水平方向延伸一体地连接所述第二弹片,所述竖立结构自所述平面结构弯折并沿高度方向延伸。
  5. 根据权利要求4所述的驱动装置,其中,所述第一连接端与所述弹性变形部之间具有一弯折部,所述第二连接端与所述弹性变形部之间具有一弯折部,所述弯折部将所述侧悬持部由水平方向延伸转折为高度方向延伸。
  6. 根据权利要求5所述的驱动装置,其中,所述侧悬持部包括四个所述侧弹片,四个所述侧弹片中的两个所述侧弹片被设置于所述防抖框架的一侧,四个所述侧弹片中的另外两个所述侧弹片被对称地设置于所述防抖框架与该侧相对的另一侧。
  7. 根据权利要求6所述的驱动装置,其中,位于同侧的两个所述侧弹片的所述弹性变形部所在的平面相互重合;位于对侧的两个所述侧弹片的所述弹性变形部所在的平面相互平行。
  8. 根据权利要求7所述的驱动装置,其中,所述驱动组件包括磁石部,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沿水平方向相对;防抖线圈部,所述防抖线圈部被设置于所述底座并与所述磁石部沿高度方向相对;所述磁石部包括第一磁石、第二磁石和第三磁石,所述第二磁石和所述第三磁石被相对地设置于所述第一磁石的两侧,四个所述侧弹片的所述弹性变形部被设置于所述第一磁石所在的一侧和与该侧相对的另一侧。
  9. 根据权利要求8所述的驱动装置,其中,四个所述侧弹片的所述弹性变形部所在的平面分别与所述第一磁石的长度方向平行。
  10. 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。
  11. 一种驱动装置,包括底座、防抖框架和驱动组件,其特征在于:
    至少一下悬持组件,至少一个所述下悬持组件被设置于所述底座与所述防抖框架之间;
    至少一所述下悬持组件包括下弹片和一体地连接于所述下弹片的至少两个侧弹片;
    至少两个所述侧弹片包括连接所述底座和所述下弹片的平面结构,自所述平面结构弯折并沿高度方向延伸的竖立结构,以及连接所述平面结构和所述竖立结构的弯折部;
    其中,至少两个所述侧弹片的所述平面结构位于所述弯折部的同一侧。
  12. 根据权利要求11所述的驱动装置,其中,所述下弹片被设置于至少两个所述侧弹片之间,所述下弹片包括一个内廓、连接于一个所述内廓的两个变形部、以及连接于两个所述变形部的两个外廓,两个所述侧弹片的所述平面结构沿同一方向延伸,并分别连接于两个所述外廓。
  13. 根据权利要求12所述的驱动装置,其中,每个所述侧弹片的所述竖立结构从所述平面结构的同一侧沿同一方向弯折。
  14. 根据权利要求13所述的驱动装置,其中,每个所述侧弹片包括连接于所述下弹片的所述外廓的第一连接端,连接于所述底座的第二连接端,以及一体地连接所述第一连接端和所述第二连接端的弹性变形部,所述第一连接端和所述第二连接端延水平方向延伸形成平面结构,所述弹性变形部沿高度方向延伸形成竖立结构。
  15. 根据权利要求14所述的驱动装置,其中,所述第一连接端与所述弹性变形部之间具有一所述弯折部,所述第二连接端与所述弹性变形部之间具有一所述弯折部,所述弯折部将每个所述侧弹片由水平方向延伸沿同一方向弯折为高度方向延伸。
  16. 根据权利要求15所述的驱动装置,其中,所述下悬持组件的数量为至少两个,至少两个所述下悬持组件被对称地设置于所述防抖框架的底面,所述防抖框架在所述下悬持组件的作用下被悬置于所述底座内,所述驱动组件驱动所述防抖框架相对于所述底座移动。
  17. 根据权利要求16所述的驱动装置,其中,所述下弹片包括第一下弹片和第二下弹片,至少两个所述侧弹片包括第一侧弹片、第二侧弹片、第三侧弹片和第四侧弹片,所述第一侧弹片、所述第二侧弹片和所述第一下弹片连接于一体形成第一下悬持组件;所述第三侧弹片、所述第四侧弹片和所述第二下弹片连接于一体形成第二下悬持组件,所述第一下悬持组件和所述第二下悬持组件被对称地设置于所述防抖框架和所述底座之间。
  18. 根据权利要求17所述的驱动装置,其中,所述第一侧弹片和所述第二侧弹片的所述平面结构均位于所述弯折部的同一侧,所述第一侧弹片和所述第二侧弹片沿同一方向弯折;所述第三侧弹片和所述第四侧弹片的所述平面结构位于所述弯折部的同一侧,所述第三侧弹片和所述第四侧弹片沿同一方向弯折。
  19. 根据权利要求18所述的驱动装置,其中,所述第一侧弹片、所述第二侧弹片、所述 第三侧弹片、所述第四侧弹片的所述平面结构均位于所述弯折部的同一侧,所述第一侧弹片、所述第二侧弹片、所述第三侧弹片、所述第四侧弹片均沿同一方向弯折。
  20. 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。
  21. 一种驱动装置,其特征在于,包括:
    底座;
    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;
    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;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;
    侧悬持部,所述防抖框架在所述侧悬持部的作用下被悬置于所述底座内,所述侧悬持部包括连接所述防抖框架和所述底座的平面结构,以及自所述平面结构弯折并沿高度方向延伸的竖立结构;
    其中,沿高度方向,所述竖立结构沿所述第一磁石的长度方向的宽度大于所述竖立结构沿所述第二磁石或所述第三磁石的长度方向的宽度。
  22. 根据权利要求21所述的驱动装置,其中,所述侧悬持部包括至少两个侧弹片,每个所述侧弹片包括连接于所述防抖框架的第一连接端,连接于所述底座的第二连接端,以及一体地连接所述第一连接端和所述第二连接端的弹性变形部,所述第一连接端和所述第二连接端延水平方向延伸形成平面结构,所述弹性变形部沿高度方向延伸形成竖立结构。
  23. 根据权利要求22所述的驱动装置,其中,所述第一连接端与所述弹性变形部之间具有一弯折部,所述第二连接端与所述弹性变形部之间具有一弯折部,所述弯折部将所述侧悬持部由水平方向延伸转折为高度方向延伸。
  24. 根据权利要求23所述的驱动装置,其中,沿高度方向看,所述弹性变形部宽度较小的方向K值较小,所述弹性变形部宽度较大的方向K值较大。
  25. 根据权利要求24所述的驱动装置,其中,沿高度方向看其平面,所述弹性变形部宽度较小的方向与所述防抖线圈部驱动所述第一磁石移动的方向相同;所述弹性变形部宽度较大的方向与所述防抖线圈部驱动所述第二磁石或所述第三磁石移动的方向相同。
  26. 根据权利要求25所述的驱动装置,其中,所述侧悬持部包括四个所述侧弹片,四个所述侧弹片中的两个所述侧弹片被设置于所述第一磁石所在的一侧,四个所述侧弹片中的另外两个所述侧弹片被对称地设置于与该侧相对的另一侧。
  27. 根据权利要求26所述的驱动装置,其中,位于同侧的两个所述侧弹片的所述弹性变形部所在的平面相互重合;位于对侧的两个所述侧弹片的所述弹性变形部所在的平面相互平行。
  28. 根据权利要求27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第一悬持部,所述对焦载体被可活动地连接于所述防抖框架,所述第一悬持部连接所述对焦载体和所述防抖框架,所述第一悬持部包括被间隔地设置于所述对焦载体物侧和像侧的第一弹片和第二弹片,所述侧悬持部与所述第二弹片连接于一体。
  29. 根据权利要求27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第一悬持部,所述对焦载体被可活动地连接于所述防抖框架,所述第一悬持部连接所述对焦载体和所述防抖框架,所述第一悬持部包括被间隔地设置于所述对焦载体物侧和像侧的第一弹片和第二弹片,所述侧悬持部与所述第一弹片连接于一体。
  30. 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。
  31. 一种驱动装置,其特征在于,包括:
    底座;
    防抖框架,所述防抖框架被可活动地连接于所述底座;
    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,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;
    防抖线圈部,所述防抖线圈部被设置于所述底座并与所述磁石部相对;
    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,其中,所述对焦线圈部具有与所述第一磁石的长度方向相互平行的直边段,以及连接于所述直边段并与所述第一磁石的长度方向呈一定夹角的斜边段。
  32. 根据权利要求31所述的驱动装置,其中,所述驱动装置包括绕其周侧依次设置的第一侧、第二侧、第三侧和第四侧,所述第一磁石被设置于所述第一侧,所述第二磁石被设置于所述第二侧,所述第三磁石被设置于所述第四侧,所述第三侧不设置有磁石。
  33. 根据权利要求32所述的驱动装置,其中,所述对焦线圈包括位于所述第一侧的第一对焦线圈部、位于所述第二侧的第二对焦线圈部、位于所述第三侧的第三对焦线圈部以及位于所述第四侧的第四对焦线圈部,所述第一对焦线圈部处于所述第一磁石的磁场范围内,所述第二对焦线圈部处于所述第二磁石的磁场范围内,所述第四对焦线圈部处于所述第三磁石的磁场范围内。
  34. 根据权利要求33所述的驱动装置,其中,所述第一对焦线圈部包括一所述直边段和连接于所述直边段的至少两个所述斜边段,所述直边段至所述第一磁石的距离小于两个所述斜边段至所述第一磁石的距离。
  35. 根据权利要求34所述的驱动装置,其中,所述直边段的长度小于所述斜边段的长度,以降低所述第一磁石与所述第一对焦线圈部之间的有效反应。
  36. 根据权利要求35所述的驱动装置,其中,所述对焦线圈为对称结构,所述第二对焦线圈部与所述第四对焦线圈部对称设置,所述第一对焦线圈部与所述第三对焦线圈部对称设 置。
  37. 根据权利要求36所述的驱动装置,其中,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底座并与所述第一磁石相对,所述第二防抖线圈被固定于所述底座并与所述第二磁石相对,所述第三防抖线圈被固定于所述底座并与所述第三磁石相对。
  38. 根据权利要求37所述的驱动装置,其中,所述驱动装置包括导磁件,所述导磁件包括第一导磁件、第二导磁件和第三导磁件,所述第一导磁件被设置所述第一磁石远离所述第一防抖线圈的一侧,所述第二导磁件被设置于所述第二磁石远离所述第二对焦线圈部的一侧,所述第三导磁件被设置于所述第三磁石远离所述第四对焦线圈部的一侧。
  39. 根据权利要求38所述的驱动装置,其中,所述驱动装置包括悬持部,所述悬持部包括第一悬持部和侧悬持部,所述第一悬持部连接所述对焦载体和所述防抖框架之间,所述对焦载体藉由所述第一悬持部悬置于所述防抖框架内;所述侧悬持部连接所述防抖框架和所述底座之间,所述防抖框架藉由所述侧悬持部悬置于所述底座内。
  40. 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31至39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。
PCT/CN2023/108495 2022-07-28 2023-07-21 一种驱动装置及摄像模组 WO2024022228A1 (zh)

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CN208079224U (zh) * 2018-03-14 2018-11-09 欧菲影像技术(广州)有限公司 无线路板对焦防抖组件
CN208795986U (zh) * 2018-10-08 2019-04-26 北京美拓斯电子有限公司 一种防抖自动对焦马达

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US20170052386A1 (en) * 2014-02-20 2017-02-23 Miniswys Sa Positioning device for a picture stabilizer
CN206039113U (zh) * 2016-08-15 2017-03-22 深圳市世尊科技有限公司 一种可分体控制的光学防抖音圈马达
CN208079224U (zh) * 2018-03-14 2018-11-09 欧菲影像技术(广州)有限公司 无线路板对焦防抖组件
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