Optical lens driving assembly and camera module thereof

Abstract

An optical lens driving assembly (1) comprises an optical lens (10), a driving motor (20) and a protective shell (21), the protective shell (21) is provided with a shell light through hole (211) and a shell containing part (212), and the shell light through hole (211) is mainly used for containing the optical lens (10), so that a light inlet hole of the optical lens (10) and the shell light through hole (211) are consistent in shape; an internal space formed by the motor shell accommodating part (212) comprises an optical lens accommodating part (2121) and a driving motor accommodating part (2122), the optical lens accommodating part (2121) surrounds the periphery of the optical lens (10), the bottom surface of the driving motor accommodating part (2122) is fixed on the side edge of the driving motor base (26) to form a coating space, and elements of the driving motor (20) are coated in the formed coating space. Therefore, internal elements are protected.

Description

Optical lens drive assembly and camera module thereof Technical Field

[0001] The present invention relates to the technical field of camera modules, and in particular to a lens driving device and a camera module. Background Art

[0002] With the development trend of mobile terminals becoming thinner and lighter, the structure of the camera module configured on it also needs to be miniaturized, but at the same time, the imaging quality of the camera module is required to be improved. To improve the imaging quality of the camera module, it is necessary not only to increase the size of its photosensitive chip and the components adapted to it, but also to increase the driving force of the driving structure.

[0003] In the camera module structure, the driving structure is mainly used to drive the optical lens to achieve focus and anti-shake in order to capture clearer images. For most high-pixel camera modules, the driving structure is an indispensable component. When the size of the photosensitive chip increases, the size of the corresponding optical lens also increases. The optical lens is arranged inside the driving structure, and the size of the corresponding driving structure also increases.

[0004] How to increase the size of the photosensitive chip while ensuring the miniaturization of the overall structure of the camera module, especially to ensure that the driving force provided by the driving structure can drive the optical lens to achieve focusing and anti-shake functions while also achieving effective utilization of the internal space of the driving structure and reducing the volume of the driving structure, is an issue that technical personnel urgently need to solve.

[0005] In response to the above problems, this solution provides a split optical lens drive assembly and camera module structure, which can effectively solve some or most of the above problems. While increasing the size of the photosensitive chip and improving the imaging quality of the camera module, it can also achieve miniaturization of the drive structure.

[0006] Summary of the Invention

[0007] One object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which have a simple structure and can ensure the miniaturization of the camera module while realizing the focusing function of the lens assembly in the optical axis direction and the anti-shake function of the plane orthogonal to the optical axis.

[0008] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which realizes the focusing function during the shooting process by setting the optical lens as a split structure and using the drive structure to drive part of the lens group to move along the optical axis.

[0009] Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which configure the optical lens as a split lens, with the first lens unit, the second lens unit and the third lens unit along the optical axis, respectively, wherein the first lens unit, the second lens unit and the third lens unit form an entire optical imaging system that can be used for imaging of the camera module.

[0010] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which are fixedly connected through the mounting positions reserved at the barrel ends of the first lens head and the third lens head, forming a movable space for the second lens head between the two to ensure that the second lens head can be adjusted within the space formed by the two.

[0011] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, wherein the second lens head is arranged inside the drive structure to drive the second lens head to move along the optical axis in the space formed by the first lens head and the third lens head, so as to adjust the position of the second lens head and obtain clear imaging.

[0012] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which provides a carrier extension bracket on the focusing part carrier of the drive motor so that the bracket extends into the space formed by the first lens part and the third lens part to provide support for the second lens part.

[0013] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which fully utilize the internal space of the drive assembly by extending the extension bracket of the focus carrier of the drive motor from the four corners of the motor, and extending into the upper surface of the third lens head through the side wall channels reserved on the edges of the lens barrels of the first lens head and the third lens head.

[0014] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which reserves an avoidance groove on the lower surface of the focusing carrier so that the third lens mounting part on the anti-shake carrier is partially arranged in the avoidance groove to reserve the position of the third lens mounting part, thereby realizing the miniaturization of the overall drive structure.

[0015] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which form a third lens mounting portion on the bottom surface of the anti-shake carrier and fix the third lens head on the third lens mounting portion formed by the anti-shake carrier to ensure the stability of the installation of the third lens head.

[0016] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which form a limiting space for the focusing part on the carrier of the anti-shake part, and accommodate part of the structure of the focusing part carrier in the limiting space formed thereby to prevent excessive movement of the focusing part carrier.

[0017] Another object of the present invention is to provide an optical lens drive assembly and a camera module thereof, which fix the magnet on the anti-shake carrier by using a fastener. The fastener can be integrally formed with the anti-shake carrier, and the magnet is fixed on the anti-shake carrier by an injection molding process to reduce the overall weight of the anti-shake part and reduce the requirements for the anti-shake driving force.

[0018] To achieve the above objectives, according to the first aspect of the present invention, the technical solution adopted by the present invention is:

[0019] An optical lens driving assembly, characterized by comprising:

[0020] An optical lens, wherein the optical lens is a split optical lens, and the split optical lens has an optical axis. Along the direction of the optical axis, there are a first lens head, a second lens head, and a third lens head, wherein the first lens head is arranged above the third lens head, and an accommodation space is formed between the first lens head and the third lens head, and the second lens head is arranged in the accommodation space;

[0021] A driving motor, wherein the driving motor is used to drive the optical lens to adjust its position; and

[0022] The shell includes an optical lens accommodating portion and a drive motor accommodating portion, the side to which the first lens head and the third lens head are fixed has at least one side wall channel, the optical lens accommodating portion is arranged around the side wall channel, and the drive motor accommodating portion is arranged around the drive motor.

[0023] In one embodiment, the lower surface of the optical lens housing portion has an extension plane, and the extension plane is bonded and fixed to the upper surface of the drive motor housing portion. The space formed by the lens housing portion and the drive motor housing portion accommodates the optical lens portion in its internal space.

[0024] In one embodiment, the upper surface of the optical lens accommodating portion has a light-through hole, and the diameter of the light-through hole is larger than the light-through aperture of the optical lens.

[0025] In one embodiment, the optical lens receiving portion surrounds the periphery of at least a portion of the first lens lens and the second lens lens.

[0026] In one embodiment, the upper surface of the third lens portion is lower than the upper surface of the drive motor accommodating portion.

[0027] In one embodiment, a first gap exists between the optical lens accommodating portion of the housing and the upper surface of the first lens portion to facilitate adjustment of the position of the optical lens.

[0028] In one embodiment, a second gap exists between the optical lens accommodating portion of the housing and the side surface of the first lens portion, and the distance of the second gap is greater than the distance of the first gap.

[0029] In one embodiment, the driving motor includes an anti-shake carrier, and a third gap is formed between the side of the anti-shake carrier and the side of the driving motor accommodating portion. The third gap is located at the driving motor end to reserve a movable gap for the optical lens in the horizontal plane.

[0030] In one embodiment, the second lens portion is disposed in the accommodating space and is movable along the direction of the optical axis.

[0031] In one embodiment, the drive motor includes a base, and the bottom surface of the drive motor accommodating portion is fixed on the side of the base to form an enclosing space, enclosing the components of the drive motor in the space formed thereby.

[0032] According to a second aspect of the present invention, the technical solution adopted by the present invention is: an optical lens driving assembly, characterized in that it includes:

[0033] An optical lens having an optical axis, the optical lens being a split optical lens, and comprising a first lens head, a second lens head, and a third lens head in order along the direction of the optical axis, the first lens head being fixed above the third lens head, the first lens head and the third lens head forming an accommodating space, the side of the accommodating space having at least one side wall channel, the side wall channel being in communication with the accommodating space, and the second lens head being disposed within the accommodating space;

[0034] A focusing carrier, the focusing carrier having an extension bracket, the extension bracket extending through the side wall channel into the accommodating space and fixed to the second lens head;

[0035] an anti-shake carrier, the focus carrier being accommodated in the anti-shake carrier, the anti-shake carrier having a third lens mounting portion;

[0036] Among them, the third lens head is fixed to the third lens mounting part, and the second lens head is arranged above the third lens head through the extension bracket on the focusing carrier, so that the first lens head, the second lens head and the third lens head can form an image.

[0037] In one embodiment, the second lens head moves in the accommodating space along the direction of the optical axis to achieve focusing, wherein the focusing stroke (or movable stroke) of the second lens head does not exceed 360um.

[0038] In one embodiment, the height of the sidewall channel exceeds 520 μm to provide sufficient movement range for the focus carrier and the second lens head.

[0039] In one embodiment, the number of optical lens lenses is greater than seven, wherein the number of the first lens group in the first lens head is at least three.

[0040] In one embodiment, the second lens unit includes a second lens barrel and at least one second lens group, and the light entrance aperture of the second lens barrel of the second lens unit is larger than the light exit aperture.

[0041] In one embodiment, the inner lower bottom surface of the second lens barrel serves as a supporting surface for the second lens group.

[0042] In one embodiment, the extension bracket of the focusing carrier includes an extension part and a bearing part, the bearing part is fixed to the extension part, the bearing part can be an annular structure, the extension part extends into the accommodating space formed by the first lens head and the third lens head, and the second lens head is fixed to the upper end surface of the bearing part.

[0043] In one embodiment, a through hole is formed on the carrying portion, and an inner diameter of the through hole is larger than a diameter of the light exit hole of the second lens portion.

[0044] In one embodiment, the inner diameter of the annular structure of the supporting portion is larger than the diameter of the light entrance hole of the third lens portion.

[0045] In one embodiment, the extension bracket extends upward and carries the second lens head, so that the second lens head is arranged above the third lens head and above the driving motor.

[0046] According to the third invention of the present invention, the technical solution adopted by the present invention is:

[0047] An optical lens driving assembly, characterized by comprising:

[0048] An optical lens having an optical axis. The optical lens is a split optical lens, and comprises a first lens head, a second lens head, and a third lens head in sequence along the optical axis. An accommodation space is formed between the first lens head and the third lens head, and the second lens head is disposed in the accommodation space.

[0049] and a driving motor, wherein the driving motor is used to drive the optical lens to adjust its position, and the driving motor comprises:

[0050] a focusing unit, the focusing unit being fixed to the second lens unit and driving the second lens unit to move along the direction of the optical axis for focusing;

[0051] an anti-shake unit configured to accommodate the focusing unit therein, the anti-shake unit having a third lens mounting portion, the third lens unit being fixed to the third lens mounting portion, and the anti-shake unit driving the optical lens to move in a direction perpendicular to the optical axis to perform anti-shake;

[0052] A supporting portion, used for supporting the anti-shake portion;

[0053] A base is located below the anti-shake portion, and a support portion is provided between the base and the anti-shake portion;

[0054] A holding member is provided between the anti-shake unit and the focus unit to hold the focus unit inside the anti-shake unit.

[0055] In one embodiment, there is at least one side wall channel between the first lens head and the third lens head, the focusing part includes a focusing carrier, the focusing carrier includes an extension bracket, the extension bracket extends into the accommodating space through the side wall channel, and the extension bracket is fixed to the second lens head.

[0056] In one embodiment, the extension bracket of the focusing carrier includes an extension portion and a bearing portion, the bearing portion is fixed to the extension portion, the extension portion extends into the accommodating space formed by the first lens portion and the third lens portion, and the second lens portion is fixed to the upper end surface of the bearing portion.

[0057] In one embodiment, the number of the extension parts is three or more, the bearing part may be an annular structure, the extension parts are evenly distributed and connected to the circumference of the annular structure, and are fixed to the bearing part.

[0058] In one embodiment, the holding portion holds the focusing portion inside the anti-shake portion, and through the centering holding effect of the holding portion, the second lens portion fixed to the focusing portion maintains the optical axis consistent with the first lens portion and the third lens portion.

[0059] In one embodiment, the anti-shake portion includes an anti-shake carrier, the anti-shake carrier extends from an inner side surface to form at least one limiting body, and the third lens portion is fixed to the limiting body.

[0060] In one embodiment, the limiter is arranged on the inner side surface of the anti-shake carrier, and the limiter extends from the inner side surface of the anti-shake carrier. The limiter includes a horizontal part and a vertical part, and the horizontal part extends horizontally along the inner side surface of the anti-shake carrier. The vertical part is connected to the horizontal part and extends upward along the optical axis, wherein the horizontal part has a certain width.

[0061] In one embodiment, the lower surface of the focusing carrier has an avoidance groove, and the avoidance groove is arranged on the horizontal part of the limiting body.

[0062] In one embodiment, the focusing part further includes a focusing carrier, the anti-shake part further includes an anti-shake carrier, and the retaining member connects the anti-shake carrier and at least one end surface of the focusing carrier to retain the focusing carrier inside the anti-shake carrier.

[0063] In one embodiment, the driving motor further includes a conducting portion, wherein the conducting portion connects the anti-shake portion and the focus portion.

[0064] In one embodiment, the conductive portion further includes a connecting portion, the connecting portion is a bent structure, and the connecting portion is provided on at least two side surfaces of the anti-shake carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] FIG1 is a structural perspective view of an optical lens driving assembly according to a specific embodiment of the present invention;

[0066] FIG2 is an exploded view of an optical lens driving assembly according to the above embodiment of the present invention;

[0067] FIG3 is a perspective view of the internal structure of an optical lens driving assembly according to the above embodiment of the present invention;

[0068] FIG4 is a cross-sectional schematic diagram of an optical lens driving assembly according to the above embodiment of the present invention;

[0069] FIG5 is a side view of the internal structure of the optical lens and the driving motor according to the above embodiment of the present invention;

[0070] FIG6 is an exploded schematic diagram of an anti-shake carrier and a focus carrier according to the above embodiment of the present invention;

[0071] FIG7 is a schematic diagram showing the connections among the focusing unit, the anti-shake unit, and the conducting unit according to the above embodiment of the present invention;

[0072] FIG8 is a schematic diagram of the bottom structure of the anti-shake portion according to the above embodiment of the present invention;

[0073] 9 is a schematic diagram of the housing structure of the drive motor according to the above embodiment of the present invention;

[0074] FIG10 is a cross-sectional view of the installation of the anti-shake unit and the third lens unit according to the above embodiment of the present invention;

[0075] FIG11 is a schematic structural diagram of the installation of the base and the anti-shake coil according to the above embodiment of the present application;

[0076] FIG12 is a schematic structural diagram of the installation of the second lens unit and the focusing unit according to the above embodiment of the present application. DETAILED DESCRIPTION

[0077] The present invention will be further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0078] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0079] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0080] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0081] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct, contact, or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0082] As an important component of camera module imaging, the photosensitive chip plays an important role in the camera module structure. By increasing the size of the photosensitive chip, the imaging quality of the camera module can be effectively improved. In order to cater to the development trend of thinner and lighter mobile terminals, the overall structure of the existing camera module also needs to be miniaturized. The increase in the size of the photosensitive chip, especially when the image surface of the photosensitive chip gradually increases, will increase the volume and weight of the optical lens adapted to it. The drive structure is mainly used to drive the optical lens to achieve focus and anti-shake functions. Under conventional solutions, when the volume of the optical lens increases, the drive structure is required to provide greater driving force to achieve the focus and anti-shake functions of the optical lens.

[0083] In order to make the driving structure provide greater driving force, the structure of the driving structure itself needs to be improved. In the existing technology, the driving force of the driving structure mainly comes from the interaction force generated between the magnet and the coil. Although increasing the volume of the magnet or increasing the number of turns of the coil can provide greater driving force, the volume of the driving structure will increase, and more heat will be generated during the operation of the driving structure, and energy consumption will increase.

[0084] In this embodiment, in the description of some embodiments, an orthogonal coordinate system (X, Y, Z) is used for illustration, the Z direction is the direction of the optical axis, which is the front-to-back direction, and the X direction and Y direction orthogonal to the Z axis are used as directions orthogonal to the optical axis, the X direction is the up-down direction (or left-right direction), the Y direction is the left-right direction (or up-down direction), the plane orthogonal to the optical axis is the plane formed by the X direction and the Y direction, the "radial" direction is the direction orthogonal to the Z axis, and the "axial" direction refers to the corresponding setting between the two Z-axis orthogonal planes, including not only the direction parallel to the Z axis, but also the direction close to the Z axis parallel, such as shown in FIG8 . In this application, the direction of the optical axis is the direction of the Z axis, and the direction perpendicular to the optical axis is the X / Y direction.

[0085] The present invention provides an optical lens driving assembly 1, as shown in Figures 1 to 4, an optical lens driving assembly 1 includes an optical lens 10 and a driving motor 20, the optical lens 10 is a split optical lens, which includes multiple lens parts. In the present application, the optical lens 10, that is, the split optical lens has an optical axis, along which the direction from the image side to the object side are the first lens part 11, the second lens part 12 and the third lens part 13, wherein the first lens part 11, the second lens part 12 and the third lens part 13 form an imageable optical system in the present application, the first lens part 11 includes a first lens barrel 111 and at least a first lens group 112, the second lens part 12 includes a second lens barrel 121 and at least a second lens group 122, the third lens part 13 includes a third lens barrel 131 and at least a third lens group 132, the lens group includes at least one lens and more lens combinations, not specifically referring to multiple structures. In a specific embodiment, the optical lens comprises eight lenses, of which the first lens group 112 comprises four lenses, the second lens group 122 comprises two lenses, and the third lens group 132 comprises two lenses. The number of lenses is not limited to this arrangement. In another variant embodiment, the first lens group 112 comprises five lenses, the second lens group 122 comprises one lens, and the third lens group 132 comprises two lenses. The above are two exemplary arrangements for the number of lenses in a split lens. In other embodiments, the number of lenses is not limited to the above two arrangements. The sensitivity of the optical lens decreases from the object side to the image side along the optical axis. In optical design, it is desirable to optimize optical performance by retracting the structured aperture, preferably to position it at the third or fourth lens position. This reduces the clear aperture of the corresponding lens and facilitates the molding and assembly of the external black object. Therefore, it is preferred that the first lens unit 11 be provided with a lens group having a smaller outer diameter, while the second and third lens units 12 and 13 be provided with lens groups having relatively larger outer diameters. In addition, since the three lens units are pre-assembled separately and the three groups are finally assembled into a whole, the inner and outer diameters of the lens units have different sizes. In the present application, the diameter of the lenses in the first lens group 111 is smaller than the diameters of the second lens group 121 and the third lens group 131. Specifically, the inner diameter of the first lens unit 11 is much smaller than the inner diameter of the second lens unit 12, and the inner diameter of the second lens unit 12 is smaller than the inner diameter of the third lens unit 13. This makes the inner diameter of each lens unit compatible with the image of the optical imaging system, which not only ensures the imaging of the optical system. At the same time, the outer diameters of the first lens barrel 111 and the third lens barrel 131 in the present application are larger than the second lens barrel 121, which is suitable for the pre-assembly of the first lens barrel 111 and the third lens barrel 131, and is also conducive to the active calibration assembly of the second lens barrel 121, and is suitable for improving the accuracy of the optical system imaging by actively calibrating the relative position relationship of at least one lens unit.

[0086] According to one aspect of the present application, an optical lens drive motor 20 is provided. As shown in Figures 1 to 8, the drive motor 20 includes a protective housing 21, a focusing unit 22, an anti-shake unit 23, a conductive portion 24, a retaining portion 25, a base 26, and a support portion 27. The protective housing 21 is used to accommodate other components within its internal space, thereby providing corresponding protection for the internal components of the drive motor 20. The focusing unit 22 is used to accommodate the optical lens unit and, under the action of its driving force, drives the optical lens to move along the optical axis. The focusing unit 22 is disposed within the anti-shake unit 23, and the anti-shake unit 23 drives the optical lens 10 and the focusing unit 22 to move in a direction perpendicular to the optical axis. In some optional embodiments, the retaining portion 25 of the optical lens drive motor 20 elastically connects the focusing unit 22 and the anti-shake unit 23 to retain the focusing unit 22 within the anti-shake unit 23. Due to the elastic action of the retaining portion 25, the focusing unit 22 can return to its original position after focusing movement. The drive motor 20 also includes a conductive portion 24, which primarily ensures electrical continuity within the drive motor circuit. This conductive portion 24 is primarily used to connect the focus unit 22, the anti-shake unit 23, and an external power supply device, thereby ensuring circuit stability during operation of the drive motor 20. A base 26 is disposed below the anti-shake unit 23. A support portion 27 is disposed between the base 26 and the anti-shake unit 23. The support portion 27 is disposed within a reserved area between the anti-shake unit 23 and the base 26 to support the anti-shake unit 23. In some embodiments, the support portion 27 generates sliding or rolling friction when the anti-shake unit 23 moves horizontally relative to the base 26, thereby reducing resistance to the movement of the anti-shake unit 23 relative to the base 26.

[0087] As shown in Figures 5 to 8, the focusing unit 22 is mainly used to drive the second lens unit 12 to move along the direction of the optical axis so that the camera module can form a clear image. The focusing unit mainly includes a focusing carrier 221, a focusing coil 222, a magnet 223 and an anti-shake carrier 231. The second lens unit 12 is fixed to the focusing carrier 221, the focusing coil 221 is arranged on the side wall of the focusing carrier 221, and the magnet 223 is arranged on the anti-shake carrier 231 and is arranged towards the focusing coil 221. In the present application, the focusing carrier 221 further includes a carrier body 2221, an extension bracket 2222, a coil mounting position 2223 and an avoidance groove 2224. The extension bracket 2222 is arranged on the carrier body 2221, extends inwardly and / or upwardly from the carrier body 2221 and carries the second lens unit 12, so that the second lens unit 12 is arranged above the third lens unit 13.

[0088] The coil mounting position 2223 is provided on the outer side surface of the carrier body 2221, and is located in the middle area of ​​the side of the carrier body 2221. Specifically, the coil mounting position 2223 may be an annular groove formed in the middle of the outer side surface of the carrier body 2221. In some embodiments, the annular groove may be integrally formed with the carrier body 2221, that is, during the injection molding process of the carrier body 2221, the coil mounting position 2223 is directly formed on the mold. The focusing coil 222 is wound on the coil mounting position 2223 formed on the carrier body 2221, and interacts with the magnet 223 surrounding the outside of the focusing coil 222 to drive the focusing part 22 to move along the direction of the optical axis.

[0089] As shown in FIG12 , the extension bracket 2222 further includes a bearing portion 22221 and an extension portion 22222. The extension portion 22222 extends from the focus carrier body 2221 along the upper and / or inner side thereof. In some preferred embodiments, the extension portion 22222 extends from the four corners or four sides of the focus carrier body 2221. In some optional embodiments, a certain height difference is formed between the extension portion 2222 and the upper end surface 2221 of the carrier body to facilitate the installation of the second lens head 12. The second lens head 12 protruding above the motor carrier can further facilitate active calibration and reduce the motor shoulder height. One end of the extension portion 22222 is connected to the carrier body 2221, and the other end is connected to the bearing portion 22221. The bearing portion 22221 is used to carry the second lens portion 12 and is bonded and fixed to the second lens portion 12. In a specific embodiment, the bearing portion 22221 can be a circular ring structure, and the outer side surface of the circular ring structure is fixed to the extension portion 22222, that is, the extension portion 22222 supports the bearing portion 22221 on the upper end surface of the carrier body 2221, so that the bearing portion 22221 and the carrier body 2221 have a certain height difference. The upper surface of the bearing portion 22221 is the mounting position of the second lens portion 12. The upper surface of the bearing portion 22221 is a horizontal circular ring, which is bonded and fixed to the lower surface of the second lens barrel 121 of the second lens portion 12, and maintains a distance from the upper end surface of the carrier body 2221.

[0090] As shown in Figures 3 and 4, the drive motor 20 and the optical lens 10 are combined to form the optical lens drive assembly 1 of the present application, wherein the optical lens 10 is a split optical lens, which includes a plurality of optical lens parts. In the specific embodiment of the present application, the optical lens 10 is sequentially divided into a first lens part 11, a second lens part 12 and a third lens part 13 along the direction of the optical axis, wherein the first lens part 11 and the third lens part 13 are fixedly connected, and the first lens part 11 is fixed above the third lens part 13, that is, the lower end surface of the first lens barrel 111 is fixed to the upper end surface of the third lens barrel 131, wherein the fixing point of the first lens part 11 and the third lens part 13 forms at least one side wall channel, and in the present application, preferably two or four, so as to facilitate the assembly of the second lens part 121 from the outside while maintaining the balance of the clamping force. A accommodating space is formed between the first lens part 11 and the third lens part 13, and the second lens part 12 is arranged inside the accommodating space. The second lens unit 12 is fixed to the focusing carrier 221. The connection between the first lens unit 11 and the third lens unit 13 forms a side wall channel, which is connected to the accommodating space. The focusing carrier 221 further includes an extension bracket 2222. The extension bracket 2222 extends into the accommodating space through the side wall channel and is fixed to the second lens unit 12, so that the second lens unit 12 is set between the first lens unit 11 and the third lens unit 13. Under the focusing drive action of the focusing unit 22, the second lens unit 12 can be driven to move along the optical axis within the accommodating space to perform focusing or zooming movements. The third lens unit 13 is set inside the anti-shake unit 23 and is fixed to the anti-shake unit 23. The third lens unit 13 is fixedly connected to the first lens unit 11, the second lens unit 12 is fixed to the focusing unit 22, and the focusing unit 22 is accommodated in the anti-shake unit 23. The focusing unit 22 is retained in the anti-shake unit 23 by the retaining unit 25. The anti-shake unit 23 can drive the first lens unit 11, the second lens unit 12, and the third lens unit 13 to move synchronously along a direction perpendicular to the optical axis.

[0091] In a specific embodiment, the light entrance aperture of the second lens barrel 121 of the second lens portion 12 is larger than the light exit aperture, and the inner lower bottom surface of the second lens barrel 121 serves as the supporting surface of the second lens group 122, which can reduce the risk of stray light and facilitate subsequent assembly.

[0092] In a specific embodiment, in order to allow the light of the second lens portion 12 to pass through, a through hole is formed on the supporting portion 22221, and the diameter of the through hole is larger than the diameter of the light through hole of the second lens portion 12, so that the light passes through the second lens portion 12 and enters the third lens portion 13, wherein the inner diameter of the supporting portion 22221 is larger than the diameter of the light entrance hole of the third lens portion 13, and is also larger than the diameter of the light exit hole of the second lens portion 12, which can reduce the risk of stray light generated between the two lens groups, and at the same time allows the supporting portion 22221 to avoid the light path diffusion path of the optical lens 10 in which it is located.

[0093] Specifically, in the present application, the number of the extension parts 22222 of the focusing carrier extension bracket 2222 is multiple. In a specific embodiment, the number of the extension parts 22222 is at least three, which are evenly arranged on the upper surface of the focusing carrier to ensure the flatness of the installation of the second lens head 12. The extension bracket extends upward and / or inward to a certain height along the corner or edge of the carrier body 2221, and extends to the accommodating space formed by the first lens head 11 and the third lens head 13. Among them, after the first lens section 11 and the third lens section 13 are fixed, at least one side wall channel is formed on the side of the connection between the first lens section 11 and the third lens section 13, and the extension portion 22222 extends into the accommodating space through the side wall channel formed by the first lens section 11 and the third lens section 13. One end of the extension portion 22222 is connected and fixed to the supporting portion 22221, and the second lens section 12 is arranged on the upper end surface of the supporting portion 22221, so that the second lens section 12 can move along the direction of the optical axis in the accommodating space to focus or zoom under the action of the focusing portion 22.

[0094] In the present application, as shown in FIG3 , the second lens section 12 is located in the internal space formed by the second lens section 11 and the third lens section 13. The extension bracket of the carrier body 2221 extends into the accommodating space through a side wall channel reserved at the barrel end of the first lens section 11 and the third lens section 13, and is fixed to the second lens section 12 through the bearing portion 222221 on the extension bracket 2222. The side wall channel reserved on the side wall of the barrel end of the first lens section 11 and the third lens section 13 is used to avoid the extension portion 22222 so that it extends into the accommodating space. The side wall channel also has a certain height, which is mainly used to reserve a distance for the carrier body 2221 to move along the optical axis, so that the second lens section 12 can be adjusted in position within the limited space.

[0095] In a specific embodiment, the height of the sidewall channel exceeds 520 μm to provide sufficient movement stroke for the focus carrier 221 and the second lens unit 12. In the specific embodiment involved in this application, applicable to a large image plane optical design (image plane + focal length condition), when the number of first lens elements in the first lens unit 11 is greater than 3, the focus stroke (or movable stroke) of the focus unit 22 or the second lens unit 12 using the design of this application is ≤360 μm. Under similar specifications, using an integrated lens design, the required focus stroke is ≥370 μm. The present application can obtain clear imaging by only driving part of the lenses or lens groups of the optical lens 10 to move, while also reducing the requirement for the driving force of the focusing part 22. While simplifying the structural design of the focusing part 22, the second lens part 12 is fixed in the accommodating space formed by the first lens part 11 and the third lens part 13 by utilizing the function of the extension bracket 2222, so that the second lens part 12 is arranged above the third lens part 13 and above the driving motor 20, thereby realizing the low shoulder height and miniaturization of the overall driving motor 20 structure. At the same time, the first lens part 11 fixed above the third lens part 13 and the second lens part 12 fixed on the extension bracket, as well as the third lens part 13 form a complete optical system. Through the reasonable design of the extension bracket and the lens barrel, the optical performance of the lens is reasonably optimized and the risk of stray light is reduced.

[0096] In a specific embodiment, the focusing portion 22 may further include a position sensing element, which may be arranged on the side of the carrier body 2221. It is mainly used to sense the position of the focusing carrier 221 and feed back its position information to the control center. The control center adjusts the current in the focusing coil 222 in real time according to the information fed back by the position sensing element, including information such as the magnitude and direction of the current, so as to quickly adjust the position of the focusing carrier 221 in the imaging to obtain a clearer image. As for the specific shape and position of the position sensing element, it can be set according to the specific requirements of the drive motor 20, and no corresponding details will be given here.

[0097] In some embodiments, as shown in Figures 3 to 10, the driving motor 20 also includes an anti-shake unit 23, which is mainly used to drive the optical lens to move in a direction perpendicular to the optical axis, that is, in the X / Y direction, to correct the shake of the optical lens. The focusing unit 22 is accommodated inside the anti-shake unit 23, and specifically the focusing carrier 221 is accommodated inside the anti-shake carrier 231. The focusing carrier 221 is connected to the anti-shake carrier 231 through the retaining unit 25. Further, through the centering holding effect of the retaining unit 25, the second lens unit 121 fixed to the focusing carrier 221 is kept optically consistent with the first lens unit 111 and the third lens unit 131. The holding portion 25 is an elastic component. In a specific embodiment, the holding portion 25 is a spring structure, one end of which is connected to the focus carrier 221, and the other end is connected to the anti-shake carrier 231. Through the action of the holding portion 25, the focus carrier 221 is suspended inside the anti-shake carrier 231. The holding portion 25 includes an upper spring piece 251 and a lower spring piece 252. The upper spring piece 251 is arranged on the upper end surface of the anti-shake carrier 231 and connected to the upper end surface of the focus carrier 221. The lower spring piece 252 is arranged on the lower end surface of the anti-shake carrier 231 and connected to the focus carrier. The lower end surface of the body 221 is connected, and the upper spring plate 251 and the lower spring plate 252 serve as retaining members to retain the focus carrier 221 within the anti-shake carrier 213. The spring plates can also be used to conduct the circuit between the focus unit 22 and the anti-shake unit 23, ensuring the stable circuit connection between the two components. At the same time, when the focus unit 22 drives the second lens unit 12 to adjust its position along the optical axis under the action of a driving force, after the driving force disappears, the focus unit 22 drives the second optical lens unit 12 to return to its original position due to the elastic restoring force of the upper spring plate 251 and the lower spring plate 252. In other optional embodiments, the retaining member 25 can also be made of other materials, such as a memory alloy metal material. It not only conducts the circuit between the focus unit 22 and the anti-shake unit 23, but also provides a restoring force for the focus unit 22, so that the focus unit 22 drives the second lens unit 12 to return to its original position before adjustment. In another specific embodiment, the retaining portion 25 can be a ball and yoke structure, that is, the focusing carrier 221 and the anti-shake carrier 231 are in contact through the ball structure, and the ball is confined in the internal space of the ball groove formed by the focusing carrier 221 and the anti-shake carrier 231 through structures such as the yoke, and is reset by the mutual attraction between the yoke and the magnet.

[0098] The present application provides a specific structure of an anti-shake unit 23, which includes an anti-shake carrier 231, an anti-shake coil 232, a magnet 223, an anti-shake controller 234, a position sensor 235, and a fastener 236. The anti-shake carrier 231 has an internal storage space for accommodating a focus carrier 221 equipped with a second lens unit 12. The magnet 223 is disposed on the side of the anti-shake carrier 231, surrounding the side of the anti-shake carrier. The anti-shake carrier 231 is provided with a mounting position for the magnet 223, and at least one magnet mounting position 2312 is integrally formed on the side wall of the anti-shake carrier 231. The anti-shake coil 232 is arranged on the lower end surface of the magnet 223, and the upper surface of the anti-shake coil 232 is parallel to the lower surface of the magnet 223. The position sensor 235 is arranged to sense the position of the anti-shake part 23 and feed back the position information of the anti-shake part 23 to the anti-shake controller 234. The controller 234 is arranged in the anti-shake part 23 and is mainly used to control the moving distance of the anti-shake part 23 according to the information fed back by the position sensor 235 to correct the shake during the shooting process to obtain a clear image. In the specific embodiment of the present application, the position sensor 235 includes an X-direction sensor 2351 and a Y-direction sensor 2352. The position sensor 235 can be located in the middle of the anti-shake coil 232 or at other locations, as long as it can detect the horizontal position of the anti-shake unit 23. The specific location of the position sensor 235 is not limited herein. The fastener 236 is located on the outer side of the anti-shake carrier 231 and is primarily used to secure the magnet 223 to the anti-shake carrier 231. In this embodiment, to reduce the weight of the anti-shake unit 23 and lower the driving force requirements for the anti-shake unit 23, a mounting position for the magnet 223 is reserved on the anti-shake carrier 231. A portion of the anti-shake carrier 231 for mounting the magnet 223 is reserved, and the magnet 223 is subsequently secured to the anti-shake carrier 231 using adhesive or other fixing methods. In another embodiment, the fastener 236 can be an injection molded part, that is, during the injection molding process of the anti-shake carrier 231, the magnet 223 is directly integrally formed with the anti-shake carrier 231. Setting the fastener 236 as an injection molded part can simplify the process of fixing the magnet 223 on the anti-shake carrier 231 and reduce the cost in the production process.

[0099] In a specific embodiment, the focusing part 22 and the anti-shake part 23 of the driving motor 20 adopt a shared magnet structure, that is, the magnet 223 of the focusing part 22 and the magnet 223 of the anti-shake part 23 are the same group of magnets, and the magnet 223 is arranged on the anti-shake carrier 231 of the anti-shake part 23.

[0100] Specifically, the anti-shake part 23 provided in the present application can drive the optical lens 10 to adjust its position in the X / Y direction to achieve shake correction during the shooting process. Specifically, in the anti-shake part 23, the anti-shake carrier 231 has an anti-collision platform 2311, a magnet mounting position 2312, a limiter 2313, a first ball groove 2314 and a Hall position sensing position 2315. Specifically, the anti-collision platform 2311 is arranged on the upper surface of the anti-shake carrier 231. The anti-collision platform 2311 can be at least one small protrusion extending upward from the four corners of the anti-shake carrier 231, which is mainly used to prevent the focusing part 22 from excessive movement and hitting the motor housing when it falls or collides. At least two limiters 2313 are arranged on the inner side surface of the anti-shake carrier 231. The limiters 2313 extend from the inner side surface of the anti-shake carrier 231 and have a certain width. The third lens unit 13 can be fixed in the limiters 2313, so that the third lens unit 13 and the anti-shake carrier 231 are fixedly arranged. When the anti-shake carrier 231 moves along the X / Y direction under the action of the driving force, the third lens unit 13 can be driven to move synchronously in the X / Y direction. Since the anti-shake unit 23 drives the optical lens to move along the X / Y direction relative to the driving motor base 26, in order to reduce the friction between the driving motor base 26 and the anti-shake carrier 231, a corresponding support part 27 is provided between the two. The support part 27 is mainly used to support the anti-shake carrier 231 on the upper surface of the base 26 to reduce the friction between the two in relative movement. In a specific embodiment, the support portion 27 can be a ball 271, and the number of the ball 271 can be multiple, which is arranged between the base 26 and the anti-shake carrier 231. The lower surface of the anti-shake carrier 231 is provided with a first ball groove 2314, and the corresponding base 26 is provided with a corresponding second ball groove 264. A accommodating space for the ball 271 is formed between the first ball groove 2314 and the second ball groove. The ball 271 is confined in the track formed by the first ball groove 2314 and the second ball groove 264. Under the action of the driving force, the anti-shake carrier 231 moves relative to the base 26 along the pre-designed ball groove, thereby realizing the position adjustment of the optical lens in the X / Y direction.

[0101] Specifically, as shown in Figure 10, the anti-shake unit 23 needs to drive the synchronous movement of each lens unit of the split optical lens. A corresponding limiter 2313 is provided on the anti-shake carrier 231. The limiters 2313 can be multiple and disposed on the inner side of the anti-shake carrier 231. The limiters 2313 are at least three in number. In a specific embodiment, the limiters 2313 include four horizontal portions 23131 and vertical portions 23132. The horizontal portion 23131 extends horizontally for a certain distance along the inner side of the anti-shake carrier. One end of the vertical portion 23132 is connected to the horizontal portion 23131 and extends upward along the optical axis. The inner side surface of the focus carrier body 2221 near the second lens unit 12 has an escape groove 2224. The escape groove is set at the four corners of the focus carrier body 2221. On the one hand, it can be used to prevent excessive movement of the focus carrier 221, and on the other hand, it can reserve installation space for the third lens unit 13. In this embodiment, the escape groove 2224 on the focus carrier 221 is set at the four corners of the anti-shake carrier 231. The escape groove 2224 at least accommodates a portion of the third lens mounting portion. The anti-shake carrier 231 forms an accommodation space between the horizontal portion 23131 and the vertical portion 23132. The escape groove 2224 provided on the focus carrier 221 corresponds to the accommodation space, so that a portion of the focus carrier 221 is confined within the limiter 2313, which helps to ensure its focus alignment when the focus carrier 221 is assembled and moved along the optical axis. The third lens unit 13 is fixed to a stopper 2313 provided on the anti-shake carrier 221. In some optional embodiments, the third lens unit 13 is supported by a vertical portion 23132 of the stopper 2313. Furthermore, the outer side surface of the stopper 2313, which is close to the lens optical axis, is fixed to the third lens unit 13, thereby firmly connecting the third lens unit 13 to the anti-shake unit 23. In some optional embodiments, a plurality of magnets 223 are provided on the side of the anti-shake carrier 231, and the anti-shake coil 232 is provided on the base 26 and located below the magnets 223. A driving force is generated between the magnets 223 and the anti-shake coil 232. When the anti-shake unit 23 moves under the driving force, it drives the first lens unit 11, the second lens unit 12, and the third lens unit 13 to move synchronously, thereby achieving position adjustment of the entire optical lens in the X / Y directions.

[0102] In the present application, the drive motor 20 also includes a base 26, as shown in FIG11 , the base 26 has a light hole 261, the center of the light hole 261 is consistent with the optical axis of the optical lens 10, the base 26 also includes a position sensor mounting position 262, a controller mounting position 263 and a second ball groove 264 and an anti-shake coil mounting position 265, the anti-shake coil mounting position 265 is located on the upper end surface of the base 26, the anti-shake coil 232 is connected to the base 26 through the reserved anti-shake coil 265 mounting position, the position sensor mounting position 262 is set on the base 26 The position sensor mounting position 262 is set to a groove structure lower than the upper surface of the base 26, so as to accommodate the position sensor 235 in the interior of the groove. The controller mounting position 263 is set on the base 26, and the controller mounting position 263 is set to a groove lower than the upper surface of the base 26, so as to accommodate the anti-shake controller 234 of the anti-shake part 23 in the interior. The structural design of the groove accommodates the position sensor 235 and the anti-shake controller 234 of the anti-shake part 23 in the interior of the base 26, which can make full use of the space of the base 26 and reduce the overall drive motor. 20, the setting position of the controller mounting position 263 on the base 26 is not restricted accordingly, and it only needs to not interfere with the position of the position sensor mounting position 262. The upper surface of the base 26 is provided with a second ball groove 264, and the second ball groove 264 corresponds to the first ball groove 2314 provided on the lower surface of the anti-shake carrier 231. The first ball groove 231 and the second ball groove 2314 form a confined space for the ball 271 to confine the ball 271 within the space formed by them. The shape of the ball groove can be hemispherical or bowl-shaped. In another embodiment, the shape of the ball groove can be V-shaped, and the specific ball track shape is not limited accordingly here. The ball 271 is confined in the ball groove formed by the first ball groove 2314 and the second ball groove 264 to form a supporting effect on the anti-shake carrier 231. Under the action of the driving force, the anti-shake carrier 231 can be adjusted in the X / Y direction relative to the base 26. Due to the supporting effect of the ball 271, the friction force of the relative movement between the anti-shake carrier 231 and the base 26 can be reduced, thereby reducing the requirements for the anti-shake driving force.

[0103] In a specific embodiment, a conductive portion 24 of the drive motor 20 is provided, as shown in Figures 7 and 8. The conductive portion 24 can be a flexible circuit board 241 that can be bent arbitrarily. In the present application, the flexible circuit board 241 is disposed on the side wall of the anti-shake carrier 231 and includes a connecting portion 2411, a focusing portion flexible board 2412, and an anti-shake portion conductive soft board 2413. The focusing portion flexible board 2412 is disposed on the top or bottom end surface of the anti-shake carrier 231. The plane on which the focusing portion flexible board 2412 lies is a first plane. One end of the focusing portion flexible board 2412 is conductively connected to at least one upper spring plate 251 or lower spring plate 252 of the focusing carrier 221 of the focusing portion 22. Furthermore, the spring plate and the focusing portion flexible board 2412 can be conductively connected via a terminal on the focusing carrier 221. The other end of the focusing unit soft board 2412 is electrically connected to the connecting portion 2411. To effectively utilize the module's internal space, the connecting portion 2411 can be a curved structure, with one end of the curved structure remaining connected to the focusing unit soft board 2412 and the other end of the curved structure connected to the anti-shake unit conductive soft board 2413. The plane on which the anti-shake unit soft board 2413 lies is the second plane. In one specific embodiment, the connecting portion 2411 can be a right-angled bend, connecting the focusing unit soft board 2412 and the anti-shake unit soft board 2413 located on different sides of the anti-shake carrier 231. Specifically, the planes on which the focusing unit soft board 2412 and the anti-shake unit soft board 2413 lie are perpendicular to each other. That is, the focusing unit soft board 2412 is located on the top or bottom end surface of the anti-shake carrier 231, while the anti-shake unit soft board 2413 is located on a sidewall of the anti-shake carrier 231. The first plane and the second plane are approximately perpendicular. The focusing unit soft board 2413 extends on the second plane, extending to the base 26 and electrically connecting with the base 26, thereby ensuring electrical continuity within the drive motor 20. The anti-shake unit soft board 2413 is electrically connected to the reserved terminal on the base 26, thereby ensuring electrical continuity within the drive motor 20. In one embodiment, the anti-shake unit soft board 2413 may extend along multiple sidewalls of the anti-shake carrier 231, with at least two sidewalls perpendicular to each other. Because the flexible board itself has a certain degree of flexibility, it not only connects the circuits of the focusing unit 22 and the anti-shake unit 23 to external circuits, but also reduces the resistance when the focusing unit 22 moves relative to the anti-shake unit 23. The extensions of the focusing unit soft board 2412, the connecting portion 2411, and the anti-shake unit soft board 2413 on multiple sidewalls or end surfaces reserve a certain bending margin or movable gap to ensure that the anti-shake carrier 231 has a sufficient range of motion when moving relative to the base 26, thereby reducing the reaction force when the motor resets. In another embodiment, the conductive portion 24 can also be a spring-type structure, which can also serve as a conductive circuit and simultaneously achieve elastic reset of the spring itself.

[0104] In a specific embodiment, a conductive portion 24 of a driving motor 20 is provided, as shown in Figures 7 to 8. The conductive portion 24 can be a circuit soft board 241, and the circuit soft board 241 itself can be bent arbitrarily. In the present application, the circuit soft board 241 is arranged on at least two side surfaces of the anti-shake carrier 231, and includes at least one end face and a side wall. The end face refers to the top and bottom end faces of the anti-shake carrier, and the side wall refers to the surrounding side walls of the anti-shake carrier, including a connecting part 2411, a focusing part soft board 2412 and an anti-shake part conductive soft board 2413. The focusing unit soft board 2412 is disposed on the top or bottom end surface of the anti-shake carrier 231. The plane on which the focusing unit soft board 2412 lies is a first plane. One end of the focusing unit soft board 2412 is electrically connected to at least one upper spring plate 251 or lower spring plate 252 of the focusing carrier 221 of the focusing unit 22. Furthermore, the spring plate and the focusing unit soft board 2412 can be electrically connected via a terminal on the focusing carrier 221. The other end of the focusing unit soft board 2412 is electrically connected to the connecting portion 2411. To rationally utilize the internal space of the module, the connecting portion 2411 can be a bent structure, that is, one end of the bent structure remains connected to the focusing unit soft board 2412, and the other bent end is connected to the anti-shake unit conductive soft board 2413. The plane on which the anti-shake unit soft board 2413 lies is a second plane. In one specific embodiment, the connecting portion 2411 may be a right-angled bend, connecting the focus unit soft board 2412 and the anti-shake unit soft board 2413, which are located on different sides of the anti-shake carrier 231. Specifically, the planes on which the focus unit soft board 2412 and the anti-shake unit soft board 2413 lie are perpendicular to each other. Specifically, the focus unit soft board 2412 is located on the top or bottom end surface of the anti-shake carrier 231, while the anti-shake unit soft board 2413 is located on a sidewall of the anti-shake carrier 231. The first plane and the second plane are substantially perpendicular. The focus unit soft board 2413 extends on the second plane, extending to the base 26 and electrically connecting to the base 26, thereby ensuring electrical continuity within the drive motor 20. The anti-shake unit soft board 2413 is electrically connected to the wiring terminals reserved on the base 26, thereby ensuring electrical continuity within the drive motor 20. In one embodiment, the anti-shake soft board 2413 may extend along multiple sidewalls of the anti-shake carrier 231, with at least two sidewalls perpendicular to each other. Because the soft board itself has a certain degree of flexibility, it can not only connect the circuits of the focusing unit 22 and the anti-shake unit 23 to external circuits, but also reduce the resistance when the focusing unit 22 moves relative to the anti-shake unit 23. The extensions of the focusing unit soft board 2412, the connecting portion 2411, and the anti-shake soft board 2413 on multiple sidewalls or end faces reserve a certain bending margin or movable gap to ensure that the anti-shake carrier 231 has a sufficient range of motion when moving relative to the base 26, thereby reducing the reaction force when the motor resets. In another embodiment, the conductive portion 24 can also be a spring-type structure, which can also serve as a conductive circuit and realize the elastic reset of the spring itself.

[0105] In the present application, as shown in FIG9 , the focus carrier 221 is accommodated inside the anti-shake carrier 231. In order to further protect the components of the drive motor 20, the optical lens drive assembly 1 further includes a protective shell 21. The protective shell 21 has a shell light hole 211 and a shell accommodating portion 212. The shell light hole 211 is mainly used to accommodate the optical lens 10, so that the light entrance hole of the optical lens 10 and the shape of the shell light hole 211 are consistent. The diameter of the shell light hole 211 is greater than or equal to the diameter of the light entrance hole of the optical lens 10. The center of the light-through hole 211 of the shell is consistent with the optical axis of the optical lens 10, so that the optical lens 10 receives more external light. The internal space formed by the motor shell accommodating portion 212 includes an optical lens accommodating portion 2121 and a drive motor accommodating portion 2122, which can accommodate the drive motor 20 and the components of the optical lens 10 therein. The shell accommodating portion 212 is snapped onto the base 26, and the space formed by it and the base 26 accommodates the drive motor 20 and the optical lens 10 inside this space to provide corresponding protection for the internal components. The bottom surface of the drive motor accommodating portion 2122 is fixed to the side of the base 26 to form a covering space, and the components of the drive motor 20 are covered in the covering space formed thereby to provide protection for the internal components. In a specific embodiment, the lens accommodating portion 2121 is a hollow cylinder, which is used to accommodate the optical lens 10 and the partial structure protruding from the main body of the drive motor 20 therein. In order to reserve a movable space for adjusting the position of the optical lens 10, the diameter of the lens accommodating portion 2121 is The specific reserved gap size is larger than the diameter of the optical lens 10 accommodated inside. The specific reserved gap size is determined according to the adjustable stroke of the optical lens 10 in a plane perpendicular to the optical axis; the focusing part 22 and the anti-shake part 23 of the drive motor are placed in the drive motor accommodating part 2122, and the main body shape of the drive motor accommodating part 2122 is a hollow rectangular parallelepiped. The accommodating space formed between the rectangular parallelepiped and the base 26 places the constituent elements of the drive motor 20 inside it for protection. The drive motor accommodating part 2122 is arranged around the drive motor.

[0106] Specifically, as shown in FIG9 , the optical lens accommodating portion 2121 and the drive motor accommodating portion 2122 are connected via the upper surface of the drive motor accommodating portion 2122, that is, the optical lens accommodating portion 2121 has an extended horizontal surface at one end thereof, and the extended horizontal surface is bonded and fixed to the upper surface of the drive motor accommodating portion 2122 to form the shell accommodating portion 212. In another specific embodiment, the optical lens accommodating portion 2121 and the drive motor accommodating portion 2122 can be integrally formed, and the shapes of the optical lens accommodating portion 2121 and the drive motor accommodating portion 2122 are directly formed in the injection molding process. In the mold, the two are formed into one piece through the injection molding process, which can simplify the process flow. At the same time, the assembly steps can be simplified during the assembly process. The material of the protective shell can be metal material, such as iron or alloy. The material needs to have a certain hardness to better protect the internal components. Specifically, the side where the first lens head 11 and the third lens head 13 are fixed has at least one side wall channel, and the optical lens accommodating portion 2121 is arranged around the side wall channel. The optical lens accommodating portion 2121 is arranged around the periphery of at least a part of the first lens head 11 and the second lens head 12.

[0107] In a specific embodiment, in order to facilitate the movement of the first lens head 11, the second lens head 12 and the third lens head 13, a first gap is formed between the upper surface of the first lens head 11 and the lens housing 2121 to facilitate the movement of the optical lens 10; a second gap is formed between the side of the first lens head 11 and the lens housing 2121, and the second gap is mainly used to reserve a distance for the optical lens 10 to move in the horizontal direction, wherein the distance of the second gap is greater than the distance of the first gap, and the two gaps are on different planes and are arranged in different directions around the first lens head 11; a third gap is formed between the side of the anti-shake part 23 of the drive motor 20 and the motor housing 2122, and the third gap is mainly used to reserve a movable gap for the anti-shake part 23 to ensure the normal adjustment of the position of the optical lens 10. This setting method of the shell can ensure the low shoulder height of the overall drive motor while increasing the size of the photosensitive chip, which is conducive to the miniaturization of the overall structure.

[0108] According to a second aspect of the present invention, a camera module includes:

[0109] The optical lens 10 and the driving motor 20 as described above;

[0110] The photosensitive component is provided with the base between the photosensitive component and the lens component, and the photosensitive component is capable of sensing light and forming an image.

[0111] The camera module can also be a chip anti-shake camera module. The base 26 is further provided with bottom corner protrusions, which are set at the four corners of the lower surface of the base 26 and are integrally formed with the base 26. The bottom corner protrusions are provided with sensing magnet mounting holes, and corresponding sensing elements are embedded in the sensing magnet mounting holes to sense the position of the photosensitive chip and feed back the position information of the photosensitive chip to the control center, so that the motor and the photosensitive chip can cooperate with each other to quickly adjust the positions of the two elements to improve the imaging efficiency of the camera module. At the same time, the photosensitive chip and the optical lens can cooperate with each other to achieve anti-shake with a larger stroke, solving the problem of increased driving force requirements due to the increase in photosensitive chip size and optical lens quality. At the same time, while ensuring the accuracy of the motor-driven optical lens movement, the problem of the coordinated movement of the photosensitive chip and the optical lens is solved.

[0112] In order to solve the problem of increased driving force requirements due to increased chip size, the optical lens driving assembly 1 provided in the present application utilizes a split optical lens to divide the optical lens into a first lens section, a second lens section and a third lens section. The focusing section of the driving motor drives the second lens section to move along the direction of the optical axis within the accommodating space formed by the first lens section and the third lens section, and the anti-shake section of the driving motor drives the entire optical lens to move in a direction perpendicular to the optical axis. This arrangement creates a direct linkage relationship between the motor and the lens, which can effectively solve the problem of increased driving force requirements due to increased photosensitive chip size, and can also achieve miniaturization of the overall structure.

[0113] The above describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical lens drive assembly, characterized in that: include: An optical lens, wherein the optical lens is a split optical lens, and the split optical lens has an optical axis. Along the direction of the optical axis, there are a first lens head, a second lens head, and a third lens head, wherein the first lens head is arranged above the third lens head, and an accommodation space is formed between the first lens head and the third lens head, and the second lens head is arranged in the accommodation space; A driving motor, wherein the driving motor is used to drive the optical lens to adjust its position; as well as The shell includes an optical lens accommodating portion and a drive motor accommodating portion, the side to which the first lens head and the third lens head are fixed has at least one side wall channel, the optical lens accommodating portion is arranged around the side wall channel, and the drive motor accommodating portion is arranged around the drive motor.

2. The optical lens driving assembly according to claim 1, wherein: The lower surface of the optical lens accommodating portion has an extension plane, which is bonded and fixed to the upper surface of the drive motor accommodating portion. The space formed by the lens accommodating portion and the drive motor accommodating portion accommodates the optical lens portion in its internal space.

3. The optical lens driving assembly according to claim 2, wherein: The upper surface of the optical lens accommodating portion is provided with a light-through hole, and the diameter of the light-through hole is larger than the light-through aperture of the optical lens.

4. The optical lens driving assembly according to any one of claims 2 to 3, wherein: The optical lens receiving portion surrounds a circumference of at least a portion of the first lens portion and the second lens portion.

5. The optical lens driving assembly according to claim 4, wherein: An upper surface of the third lens portion is lower than an upper surface of the driving motor accommodating portion.

6. The optical lens driving assembly according to claim 5, wherein: There is a first gap between the optical lens accommodating portion of the housing and the upper surface of the first lens portion to facilitate adjustment of the position of the optical lens.

7. The optical lens driving assembly according to claim 5, wherein: There is a second gap between the optical lens accommodating portion of the housing and the side surface of the first lens portion, and the distance of the second gap is greater than the distance of the first gap.

8. The optical lens driving assembly according to claim 5, wherein: The driving motor includes an anti-shake carrier, and a third gap is formed between the side surface of the anti-shake carrier and the side surface of the driving motor accommodating portion. The third gap is located at the driving motor end to reserve a movable gap for the optical lens in the horizontal plane.

9. The optical lens driving assembly according to any one of claims 6 to 8, wherein: The second lens portion is disposed in the accommodating space and is movable along the direction of the optical axis.

10. The optical lens driving assembly according to claim 9, wherein: The driving motor includes a base, and the bottom surface of the driving motor accommodating portion is fixed on the side of the base to form a covering space, and the components of the driving motor are covered in the space formed thereby.

11. An optical lens drive assembly, characterized in that: include: An optical lens having an optical axis, the optical lens being a split optical lens, and comprising a first lens head, a second lens head, and a third lens head in order along the direction of the optical axis, the first lens head being fixed above the third lens head, the first lens head and the third lens head forming an accommodating space, the side of the accommodating space having at least one side wall channel, the side wall channel being in communication with the accommodating space, and the second lens head being disposed within the accommodating space; A focusing carrier, the focusing carrier having an extension bracket, the extension bracket extending through the side wall channel into the accommodating space and fixed to the second lens head; an anti-shake carrier, the focus carrier being accommodated in the anti-shake carrier, the anti-shake carrier having a third lens mounting portion; Among them, the third lens head is fixed to the third lens mounting part, and the second lens head is arranged above the third lens head through the extension bracket on the focusing carrier, so that the first lens head, the second lens head and the third lens head can form an image.

12. The optical lens driving assembly according to claim 11, wherein: The second lens unit moves in the accommodating space along the direction of the optical axis to achieve focusing, wherein the focusing stroke of the second lens unit does not exceed 360um.

13. The optical lens driving assembly according to claim 12, wherein: The height of the sidewall channel exceeds 520 μm to provide sufficient movement travel for the focusing carrier and the second lens head.

14. The optical lens driving assembly according to any one of claims 11 to 13, wherein: The number of optical lens lenses is greater than seven, wherein the number of the first lens group in the first lens head is at least three.

15. The optical lens driving assembly according to claim 12, wherein: The second lens unit includes a second lens barrel and at least one second lens group, and the light entrance aperture of the second lens barrel of the second lens unit is larger than the light exit aperture.

16. The optical lens driving assembly according to claim 15, wherein: The inner lower bottom surface of the second lens barrel serves as a supporting surface for the second lens group.

17. The optical lens driving assembly according to claim 15, wherein: The extension bracket of the focusing carrier includes an extension part and a bearing part, the bearing part is fixed to the extension part, the bearing part can be a ring structure, the extension part extends into the accommodating space formed by the first lens head and the third lens head, and the second lens head is fixed to the upper end surface of the bearing part.

18. The optical lens driving assembly according to claim 17, wherein: A through hole is formed on the carrying portion, and the inner diameter of the through hole is larger than the diameter of the light exit hole of the second lens portion.

19. The optical lens driving assembly according to claim 17, wherein: The inner diameter of the annular structure of the carrying portion is greater than the diameter of the light entrance hole of the third lens portion.

20. The optical lens driving assembly according to claim 19, wherein: The extension bracket extends upward and carries the second lens head, so that the second lens head is arranged above the third lens head and above the driving motor.

21. An optical lens drive assembly, characterized in that: include: An optical lens having an optical axis. The optical lens is a split optical lens, and comprises a first lens head, a second lens head, and a third lens head in sequence along the optical axis. An accommodation space is formed between the first lens head and the third lens head, and the second lens head is disposed in the accommodation space. and a driving motor, wherein the driving motor is used to drive the optical lens to adjust its position, and the driving motor comprises: a focusing unit, the focusing unit being fixed to the second lens unit and driving the second lens unit to move along the direction of the optical axis for focusing; an anti-shake unit configured to accommodate the focusing unit therein, the anti-shake unit having a third lens mounting portion, the third lens unit being fixed to the third lens mounting portion, and the anti-shake unit driving the optical lens to move in a direction perpendicular to the optical axis to perform anti-shake; A supporting portion, used for supporting the anti-shake portion; A base is located below the anti-shake portion, and a support portion is provided between the base and the anti-shake portion; A holding member is provided between the anti-shake unit and the focus unit to hold the focus unit inside the anti-shake unit.

22. The optical lens driving assembly according to claim 21, wherein: There is at least one side wall channel between the first lens head and the third lens head, the focusing part includes a focusing carrier, the focusing carrier includes an extension bracket, the extension bracket extends into the accommodating space through the side wall channel, and the extension bracket is fixed to the second lens head.

23. The optical lens driving assembly according to claim 22, wherein: The extension bracket of the focusing carrier includes an extension part and a bearing part, the bearing part is fixed to the extension part, the extension part extends into the accommodating space formed by the first lens part and the third lens part, and the second lens part is fixed to the upper end surface of the bearing part.

24. The optical lens driving assembly according to claim 23, wherein: The number of the extension parts is three or more, the bearing part may be an annular structure, the extension parts are evenly distributed and connected to the circumference of the annular structure, and are fixed to the bearing part.

25. The optical lens driving assembly according to claim 22, wherein: The holding portion holds the focusing portion inside the anti-shake portion, and through the centering holding function of the holding portion, the second lens portion fixed to the focusing portion maintains the optical axis consistent with the first lens portion and the third lens portion.

26. The optical lens driving assembly according to claim 25, wherein: The anti-shake portion includes an anti-shake carrier, the anti-shake carrier extends from an inner side surface to form at least one limiting body, and the third lens portion is fixed on the limiting body.

27. The optical lens driving assembly according to claim 26, wherein: The limiting body is arranged on the inner side surface of the anti-shake carrier, and the limiting body extends from the inner side surface of the anti-shake carrier. The limiting body includes a horizontal part and a vertical part. The horizontal part extends horizontally along the inner side surface of the anti-shake carrier, and the vertical part is connected to the horizontal part and extends upward along the optical axis direction, wherein the horizontal part has a certain width.

28. The optical lens driving assembly according to claim 27, wherein: The lower surface of the focusing carrier is provided with an avoidance groove, and the avoidance groove is arranged on the horizontal part of the limiting body.

29. The optical lens driving assembly according to claim 21, wherein: The focusing unit further includes a focusing carrier, the anti-shake unit further includes an anti-shake carrier, and the retaining member connects the anti-shake carrier and at least one end surface of the focusing carrier to retain the focusing carrier inside the anti-shake carrier.

30. The optical lens driving assembly according to claim 29, wherein: The driving motor further includes a conducting portion, wherein the conducting portion connects the anti-shake portion and the focus portion.

31. The optical lens driving assembly according to claim 30, wherein: The conductive portion further includes a connecting portion, which is a bent structure and is disposed on at least two side surfaces of the anti-shake carrier.

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