Camera module

Abstract

The utility model discloses a camera module. The camera module comprises a motor; the motor comprises a first shell, and the first shell is provided with a first opening; a part of the lens extends into the first shell from the first opening along the mounting direction; and the limiting piece is arranged on the outer side of the first shell and is used for limiting the lens to be separated from the first shell. According to the camera module, the assembly efficiency of the camera module can be improved.

Description

Technical Field

[0001] This application relates to the field of shooting equipment technology, and in particular to a camera module. Background Technology

[0002] In related technologies, camera modules typically include a motor and a lens. When assembling the two, the motor usually needs to be disassembled in order to fix part of the lens inside the motor housing. However, this assembly method is relatively complicated, resulting in low assembly efficiency. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a camera module that can reduce the difficulty of fixing the lens and improve the assembly efficiency of the camera module.

[0004] A camera module according to an embodiment of this application includes: a motor; the motor includes a first housing, the first housing having a first opening; a lens, a portion of the lens extending into the first housing through the first opening along an installation direction; and a limiting member disposed on the outside of the first housing and used to limit the separation of the lens from the first housing.

[0005] According to the camera module of this application embodiment, part of its lens can be directly inserted into the first housing through the first opening. In this way, when assembling the lens and the motor, the lens and the motor can be assembled without disassembling the motor. Moreover, the limiting member is provided on the outside of the first housing, so that the limiting member can restrict part of the lens from separating from the first housing. This simplifies the assembly process of the camera module and helps to improve the assembly efficiency of the camera module.

[0006] According to some embodiments of the present application, the camera module includes a limiting member comprising a pressure plate, the pressure plate having a second opening for the lens to pass through, the maximum diameter of the second opening being smaller than the maximum diameter of the first opening.

[0007] According to some embodiments of the present application, the camera module includes at least one pressure plate, at least one of the pressure plates being located outside the first housing and partially blocking the first opening, the pressure plate being used to restrict the separation of the lens and the first housing.

[0008] According to some embodiments of the camera module of this application, the lens includes a lens and a bracket, the bracket is a hollow structure, the lens is disposed inside the hollow structure, and the outer side of the bracket is provided with a mounting position for setting a focusing magnet.

[0009] According to some embodiments of the camera module of this application, the motor is provided with a guide member, and the bracket and the guide member are guided and engaged in the direction of the optical axis of the lens.

[0010] According to some embodiments of the present application, the camera module includes a motor comprising: a stabilizing carrier adapted to be fitted onto the lens, and a guide member located between the stabilizing carrier and the lens.

[0011] According to some embodiments of the camera module of this application, the guide includes a guide rod, the bracket is provided with a guide groove, and the guide rod is slidably engaged with the guide groove.

[0012] According to some embodiments of the camera module of this application, the guide rod includes a metal guide rod, which is detachably connected to the image stabilization carrier.

[0013] According to some embodiments of the camera module of this application, the guide member includes a guide protrusion integrally injection molded with the image stabilization carrier, the bracket is provided with a guide groove, and the guide protrusion slides in cooperation with the guide groove.

[0014] According to some embodiments of the camera module of this application, the guide includes a guide ball, which is rotatably mounted on the anti-shake carrier, and the bracket is provided with a guide rail, wherein the guide ball rolls in cooperation with the guide rail.

[0015] According to some embodiments of the camera module of this application, the image stabilization carrier is provided with a focusing coil, the focusing coil is used to drive the focusing magnet to move the lens along the direction of the optical axis, and two guide members are provided, the focusing coil is close to the plane formed by the two guide members.

[0016] The camera module according to some embodiments of this application further includes: a magnetic yoke, the magnetic yoke being disposed on the side of the focusing coil away from the focusing magnet, the magnetic yoke being adapted to magnetically attract with the focusing magnet.

[0017] According to some embodiments of the present application, the camera module includes a motor comprising: a base and a stabilizing carrier. The base is provided with a rollable single-layer ball bearing. The stabilizing carrier abuts against the single-layer ball bearing. A damping element is connected between the stabilizing carrier and the base. The damping element is used to apply a damping force in a second direction to the stabilizing carrier when the stabilizing carrier moves in a first direction. The first direction and the second direction are both located in a plane perpendicular to the optical axis of the lens and are intersecting.

[0018] According to some embodiments of the present application, the camera module includes a motor comprising: a base, the base having a rollable single-layer ball bearing, a stabilizing carrier abutting against the single-layer ball bearing, and a damping member connected between the stabilizing carrier and the base, the damping member being used to apply a damping force in a second direction to the stabilizing carrier when the stabilizing carrier moves in a first direction, the first direction and the second direction being both located in a plane perpendicular to the optical axis of the lens and intersecting each other.

[0019] According to some embodiments of the present application, the camera module includes a damping member comprising a body portion, a first elastic deformation portion, and a second elastic deformation portion. The body portion is connected between the image stabilization carrier and the base. The first elastic deformation portion is adapted to elastically deform in a first direction, and the second elastic deformation portion is adapted to elastically deform in a second direction.

[0020] According to some embodiments of the camera module of this application, the motor further includes: a focusing coil, the focusing coil being mounted on the image stabilization carrier and used to drive the lens to move in the direction of the optical axis; wherein, the damping element is constructed as an electrical connecting piece, the electrical connecting piece being electrically connected between the focusing coil and an electrical connecting terminal on the base.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of a camera module according to some embodiments of this application;

[0024] Figure 2 A cross-sectional view of a camera module according to some embodiments of this application. Figure 1 ;

[0025] Figure 3 A cross-sectional view of a camera module according to some embodiments of this application. Figure 2 ;

[0026] Figure 4 Exploded views of camera modules according to some embodiments of this application;

[0027] Figure 5 Illustrations of lenses for some embodiments of this application Figure 1 ;

[0028] Figure 6 Illustrations of lenses for some embodiments of this application Figure 2 ;

[0029] Figure 7 Assembly of motor and lens for some embodiments of this application Figure 1 ;

[0030] Figure 8 This is an illustration of a stabilization carrier for some embodiments of this application. Figure 1 ;

[0031] Figure 9 Assembly of motor and lens for some embodiments of this application Figure 2 ;

[0032] Figure 10 This is an illustration of a stabilization carrier for some embodiments of this application. Figure 2 ;

[0033] Figure 11 This is a schematic diagram of a damping element according to some embodiments of this application.

[0034] Figure label:

[0035] Camera module 100; First direction X, second direction Y, optical axis direction of the lens Z; mounting direction P;

[0036] Motor 10; Base 11; Mounting slot 111; Single-layer ball bearing 112;

[0037] Image stabilization carrier 12; first image stabilization magnet 121; second image stabilization magnet 122;

[0038] Focusing coil 13; Image stabilization coil 14;

[0039] First housing 20; First opening 201;

[0040] Lens 30; Lens 301; Bracket 302; Guide groove 3021; ​​Mounting position 303; Focusing magnet 304; Anti-collision protrusion 305;

[0041] Limiting component 40; Second opening 41;

[0042] Guide component 50; guide protrusion 51; guide ball 52; guide rail 53;

[0043] Damping component 60; Body part 31; First elastic deformation part 32; Second elastic deformation part 33;

[0044] Magnetic yoke 70. Detailed Implementation

[0045] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0046] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0047] Please refer to the appendix below. Figure 1-11 This application describes a camera module 100 according to an embodiment of the present application.

[0048] like Figure 1 As shown, this application proposes a camera module 100, which includes, but is not limited to, a vertical camera module or a horizontal camera module. The camera module 100 can be used in shooting devices such as cameras. The camera module 100 may include a lens 30 and a motor 10. The lens 30 is connected to the motor 10, and the motor 10 is used to drive the lens 30 to achieve focusing and / or image stabilization functions.

[0049] like Figure 2 and Figure 3 As shown, the camera module 100 according to an embodiment of this application includes: a motor 10, a lens 30, and a limiting member 40.

[0050] Motor 10 includes a first housing 20, such as Figure 2 As shown, the first housing 20 is provided with a first opening 201, and a portion of the lens 30 is adapted to extend into the first housing 20 through the first opening 201. The limiting member 40 is provided on the outside of the first housing 20 and is used to limit the separation of the lens 30 from the first housing 20.

[0051] Understandably, during assembly, it is not necessary to disassemble the motor 10. The lens 30 can be directly installed into the first housing 20 through the first opening 201. Then, a limiting member 40 is installed on the outside of the first housing 20 to restrict the separation of the lens 30 from the first housing 20. This simplifies the assembly process of the camera module 100 and improves the assembly efficiency of the camera module 100.

[0052] In particular, such as Figure 2 and Figure 3 As shown, the limiting member 40 of this application is disposed on the outside of the first housing 20. Compared with the structure that restricts the lens 30 from separating from the first housing 20, the setting of the limiting member 40 of this application is simpler and helps to reduce the difficulty of setting the limiting member 40.

[0053] According to the camera module 100 of this application embodiment, part of the lens 30 can be directly inserted into the first housing 20 through the first opening 201. In this way, when assembling the lens 30 and the motor 10, the assembly of the lens 30 and the motor 10 can be achieved without disassembling the motor 10. Moreover, the limiting member 40 is provided on the outside of the first housing 20, so that the limiting member 40 can restrict the separation of part of the lens 30 from the first housing 20 on the outside of the first housing 20. This assembly method is relatively simple and helps to improve the assembly efficiency of the camera module 100.

[0054] It is important to note that, such as Figure 2 As shown, the limiting member 40 is fixed to the outside of the first housing 20 by the mounting direction P, which can be the direction of the optical axis Z downwards. This allows both the lens 30 and the limiting member 40 to be installed along the direction of the optical axis Z, thereby reducing the overall installation difficulty.

[0055] In some embodiments, the connection between the limiting member 40 and the first housing 20 can be welding, which helps to enhance the connection strength between the limiting member 40 and the first housing 20, thereby enhancing the structural stability of the limiting member 40; or in some other embodiments, the limiting member 40 and the first housing 20 can be detachably connected by snap-fit, plug-in or bolt connection, which allows the limiting member 40 to be flexibly installed and removed according to usage requirements, thereby reducing the maintenance difficulty of the limiting member 40.

[0056] In some embodiments, such as Figures 2-4 As shown, the limiting member 40 includes a pressure plate, which has a second opening 41 for the lens 30 to pass through. The inner wall of the second opening 41 is offset from the light transmission area of ​​the lens 30, and the maximum aperture of the second opening 41 is smaller than the maximum aperture of the first opening 201.

[0057] This allows for the use of the smaller maximum aperture of the second opening 41 to limit the positioning of the lens 30, thereby restricting the separation of the lens 30 from the first housing 20. Furthermore, the inner wall of the second opening 41 is offset from the light-transmitting area of ​​the lens 30, ensuring that the inner wall of the second opening 41 does not interfere with the light path of the lens 30, thus facilitating the light transmission of the lens 30. In particular, constructing the limiting member 40 as a pressure plate with the second opening 41 simplifies the structure of the limiting member 40, reducing the difficulty of setting the limiting member 40 and lowering costs.

[0058] In some embodiments, the limiting member 40 includes at least one pressure plate located outside the first housing 20 and partially blocking the first opening 201. The pressure plate is used to limit the separation of the lens 30 and the first housing 20.

[0059] For example, the limiting member 40 may include a pressure plate disposed on the outside of the first housing 20. The pressure plate partially blocks the first opening 201 and is adapted to abut against the lens 30. In this way, by using the pressure plate to partially block the first opening 201, the maximum aperture of the first opening 201 is reduced, thereby achieving the effect of limiting the separation of the lens 30 from the first housing 20.

[0060] Alternatively, the limiting member 40 may include two pressure plates, both of which are disposed on the outside of the first housing 20. Each pressure plate partially blocks the first opening 201 and is adapted to abut against the lens 30. The minimum distance between the two pressure plates is less than the minimum aperture of the first opening 201. Thus, by partially blocking the first opening 201 with the two pressure plates, the maximum aperture of the first opening 201 is effectively reduced, thereby achieving the effect of preventing the lens 30 from separating from the first housing 20. The two pressure plates can be arranged substantially symmetrically on both sides of the first opening 201.

[0061] In some embodiments, such as Figures 2-4 As shown, the lens 30 includes a lens 301 and a support 302. The support 302 is a hollow structure, and the lens 301 is installed inside the hollow structure, as shown below. Figure 2 and Figure 3 As shown, the bracket 302 is located inside the first housing 20, and as Figure 5 As shown, the outer side of the bracket 302 is provided with a mounting position 303 for setting the focusing magnet 304.

[0062] It is understood that the lens 30 of this application is an integrated lens, with part of the bracket 302 located inside the first housing 20. Specifically, the limiting member 40 is used to restrict the separation of the bracket 302 from the first housing 20, thereby limiting the separation of the lens 30 from the first housing 20. Simultaneously, the lens 301 is embedded in the bracket 302, and the outer side of the bracket 302 is provided with a mounting position 303 for mounting the focusing magnet 304. Thus, when the motor 10 is equipped with a focusing coil 13, energizing the focusing coil 13 can directly drive the focusing magnet 304. The moving lens 30 moves along the optical axis in the Z direction to achieve focusing. This eliminates the need for a separate focusing carrier in the camera module 100 of this application, simplifying the installation process and improving production efficiency. Meanwhile, the focusing magnet 304 can be directly mounted to the lens 30, making the arrangement of the lens 30 and the focusing magnet 304 more compact. In particular, the bracket 302 replaces the function of the lens barrel, allowing the lens 30 of this application to eliminate the need for a lens barrel, thereby reducing the radial dimension of the lens 30 and facilitating the miniaturization design of the lens 30.

[0063] In some implementations, the mounting position 303 can be a groove or a planar area for attaching magnets; this is not limited here.

[0064] In some embodiments, such as Figure 6 As shown, the bracket 302 is provided with anti-collision protrusions 305, which are spaced apart from the lens 301, and the anti-collision protrusions 305 are adapted to interact with the limiting member 40 (e.g., Figure 2 and Figure 3 The limiting member 40 shown in the figure abuts against each other. In this way, when the lens 30 is autofocusing, the anti-collision protrusion 305 can abut against the limiting member 40 to limit the further movement of the lens 30, thereby protecting the lens 30.

[0065] In some embodiments, such as Figure 4 As shown, the motor 10 includes: a stabilizing carrier 12, which is sleeved on the lens 30, and a guide 50 located between the stabilizing carrier 12 and the lens 30. In this way, the arrangement of the stabilizing carrier 12 can utilize the space on the radially outer side of the lens 30, thereby reducing the space occupied in the optical axis direction Z of the lens 30, and thus facilitating a reduction in the size of the camera module 100 in the optical axis direction Z of the lens 30.

[0066] In some embodiments, the image stabilization carrier 12 is provided with a focusing coil 13, which is used to drive the focusing magnet 304 to move the lens 30 along the optical axis. In this way, the focusing coil 13 can be used to drive the focusing magnet 304 to move the lens 30 along the optical axis to achieve focusing.

[0067] Multiple guide members 50 may be provided, with the focusing coil 13 positioned close to the plane formed by at least two guide members 50. For example, two guide members 50 may be provided, with the focusing coil 13 positioned close to the plane formed by the two guide members 50. The focusing coil 13 may be located in the same plane as the two guide members 50. For example, the focusing coil 13 and the guide members 50 may be located on the same side of the image stabilization carrier 12, allowing the focusing coil 13 and the guide members 50 to be arranged on the same side, thereby reducing the difficulty of setup.

[0068] In some embodiments, such as Figure 3 As shown, the motor 10 also includes a magnetic yoke 70, which is disposed on the image stabilization carrier 12 and located on the side of the focusing coil 13 away from the focusing magnet 304. The magnetic yoke 70 is adapted to magnetically attract the focusing magnet 304.

[0069] It is understandable that, in order to ensure the stability of the fit between the bracket 302 and the guide 50, it is necessary to ensure a relatively tight contact between the bracket 302 and the guide 50. Therefore, in this application, a magnetic yoke 70 is provided on the side of the focusing coil 13 away from the focusing magnet 304. For example, the magnetic yoke 70 can be a steel sheet. This makes it easier to use the magnetic attraction between the magnetic yoke 70 and the focusing magnet 304 to make the bracket 302 tend to move closer to the guide 50, thereby ensuring a relatively tight contact between the bracket 302 and the guide 50, and thus improving the stability of the fit between the bracket 302 and the guide 50. At the same time, the magnetic yoke 70 can reduce magnetic interference, ensuring that the focusing coil 13 can more stably drive the focusing magnet 304 to move the lens 30 along the optical axis to achieve focusing.

[0070] Meanwhile, when installing the lens 30, due to the magnetic attraction between the magnetic yoke 70 and the focusing magnet 304 set on the lens 30, the side of the lens 30 with the focusing magnet 304 can be more accurately aligned with the magnetic yoke 70, thereby preventing the lens 30 from being installed in the wrong direction. That is, the magnetic yoke 70 can play a role in preventing mistakes or positioning the lens 30 during installation.

[0071] In some embodiments, such as Figure 4 As shown, the motor 10 is equipped with a guide member 50, and the bracket 302 and the guide member 50 are guided and engaged in the direction Z of the optical axis of the lens 30. In this way, the guide member 50 facilitates the guidance of the lens 30 during the assembly process, thereby improving the assembly efficiency of the camera module. At the same time, it enables the lens 30 to move more stably in the direction Z of the optical axis of the lens 30 to achieve focusing, thereby enhancing the movement stability of the lens 30 and improving the focusing effect.

[0072] In some implementations, the guide 50 can be constructed as a guide rail, guide post, guide groove 3021, or other structures that can achieve guidance, without limitation.

[0073] In some embodiments, such as Figure 4 As shown, the guide member 50 includes a guide rod, and the bracket 302 is provided with a guide groove 3021, with the guide rod and the guide groove 3021 slidingly engaged.

[0074] Therefore, the sliding fit between the guide rod and the guide groove 3021 facilitates the enhancement of the motion stability of the bracket 302 in the direction Z of the optical axis, and the guiding fit between the guide rod and the guide groove 3021 is relatively simple, which helps to reduce the difficulty of setting up the guiding fit.

[0075] In some embodiments, such as Figure 4 As shown, the guide rod can be configured as a cylindrical structure and there are two of them, such as... Figure 6 As shown, there are two guide grooves 3021. Each guide rod is guided and engaged with one guide groove 3021. One guide groove 3021 has a triangular groove shape, while the other guide groove 3021 can be set to an arc shape. In this way, the arc-shaped guide groove 3021 can be used to achieve the guiding engagement with the guide rod, and the triangular guide groove 3021 can be used to limit the guide rod in the direction perpendicular to the optical axis, thereby ensuring the stability of the lens 30 in the Z direction of the optical axis.

[0076] In some embodiments, the guide rod includes a metal guide rod, which is detachably connected to the anti-shake carrier 12. This facilitates the installation and removal of the metal guide rod, reduces the difficulty of its assembly and disassembly, and makes subsequent maintenance easier. In particular, the metal guide rod has high structural strength, which helps improve its structural stability, and its outer peripheral wall can be easily made into a smooth surface, thereby reducing the frictional force experienced by the guide rod. The detachable connection method includes, but is not limited to, snap-fit ​​or bolted connections.

[0077] In some embodiments, such as Figure 7 and Figure 8 As shown, the guide component includes a guide protrusion 51 integrally injection molded with the anti-shake carrier 12, and the bracket 302 is provided with a guide groove 3021, with the guide protrusion 51 slidingly engaging with the guide groove 3021.

[0078] Therefore, the sliding fit between the guide protrusion 51 and the guide groove 3021 can enhance the stability of the bracket 302 in the direction Z of the optical axis. Furthermore, the guide fit between the guide protrusion 51 and the guide groove 3021 is relatively simple, which helps to reduce the difficulty of setting up the guide fit.

[0079] In some embodiments, the anti-shake carrier 12 is a plastic part, and therefore, the guide protrusion 12 is also made of plastic. This makes it easier for the guide protrusion 51 to be integrally injection molded with the anti-shake carrier 12. Compared with metal guide rods, the integrally molded structure is simpler and helps to reduce the difficulty of setting up.

[0080] In some embodiments, such as Figure 9 and Figure 10 As shown, the guide component 50 includes a guide ball 52, which is rotatably mounted on the anti-shake carrier 12. The bracket 302 is provided in the guide rail 53, and the guide ball 52 and the guide rail 53 are in rotatable engagement.

[0081] Therefore, the guide ball 52 can be used to guide the bracket 302, and when the bracket 302 moves along the optical axis in the Z direction, the guide rail 53 and the guide ball 52 have rolling friction, which helps to reduce the friction force on the bracket 302, thereby reducing the energy consumption required for the movement of the bracket 302.

[0082] In some embodiments, multiple guide balls 52 and guide rails 53 may be provided in a one-to-one correspondence, for example... Figure 10 As shown, the guide balls 52 can be provided in two sets, with the two sets of guide balls 52 spaced apart. One set of guide balls 52 can have two balls, which are spaced apart in the direction of the optical axis, while the other set of guide balls 52 can have one ball. In this way, the movement stability of the lens 30 in the direction Z of the optical axis can be improved by setting multiple balls.

[0083] In some embodiments, the motor 10 includes a base 11 and an image stabilization carrier 12. The base 11 is provided with a rollable single-layer ball bearing 112. The image stabilization carrier 12 is used to mount the lens 30 and abuts against the single-layer ball bearing 112. A damping member 60 is connected between the image stabilization carrier 12 and the base 11. The damping member 60 is used to apply a damping force in the other direction to the image stabilization carrier 12 when the image stabilization carrier 12 moves along one of the first direction X or the second direction Y. The first direction X and the second direction Y are both located in a plane perpendicular to the optical axis of the lens 30 and are intersecting each other.

[0084] It is understood that the single-layer ball bearing 112 in this application may include a single ball bearing or a ball bearing group consisting of multiple balls arranged in the horizontal direction. In this way, when the image stabilization carrier 12 moves relative to the base 11 to achieve the image stabilization function of the lens 30, the arrangement of the single-layer ball bearing 112 can reduce the driving force output by the image stabilization coil 14 while satisfying the relative movement between the image stabilization carrier 12 and the base 110. At the same time, the image stabilization carrier 12 and the single-layer ball bearing 112 have rolling friction, so as to reduce the friction force on the image stabilization carrier 12 when it moves, thereby improving the load capacity of the image stabilization coil 14.

[0085] For example, when the image stabilization carrier 12 moves along the first direction X, if the image stabilization carrier 12 has a tendency to move in the second direction Y, the damping member 60 will apply a damping force to the image stabilization carrier 12 in the second direction Y, thereby preventing the image stabilization carrier 12 from moving in the second direction Y, thus ensuring that the image stabilization carrier 12 can move stably in the first direction X, thereby reducing the problem of lens 30 shifting, and thus improving the image stabilization effect of the motor 10.

[0086] Alternatively, when the image stabilization carrier 12 moves along the second direction Y, if the image stabilization carrier 12 has a tendency to move in the first direction X, the damping element 60 will apply a damping force to the image stabilization carrier 12 in the first direction X, thereby preventing the image stabilization carrier 12 from moving in the first direction X, thus ensuring that the image stabilization carrier 12 can move stably in the second direction Y, thereby reducing the problem of lens 30 shifting, and thus improving the image stabilization effect of the motor 10.

[0087] This improves the motion stability of the image stabilization carrier 12 when it moves along the first direction X or the second direction Y, thereby reducing the problem of lens 30 shifting and improving the image stabilization effect of the motor 10.

[0088] In some embodiments, the motor 10 further includes: a stabilization coil 14, which is fixedly disposed on the base 11. A first stabilization magnet 121 and a second stabilization magnet 122 are disposed on the stabilization carrier 12. The first stabilization magnet 121 is arranged along a first direction X, and the second stabilization magnet 122 is arranged along a second direction Y. After the stabilization coil 14 is energized, the first stabilization magnet 121 moves along the first direction X under the action of the magnetic field generated by the stabilization coil 14 to realize the stabilization function of the lens 30 in the first direction X, or the second stabilization magnet 122 moves along the second direction Y under the action of the magnetic field generated by the stabilization coil 14 to realize the stabilization function of the lens 30 in the second direction Y.

[0089] In some embodiments, the base 11 is provided with mounting grooves 111, and there are multiple mounting grooves 111. The multiple mounting grooves 111 are arranged at intervals around the centroid of the base 11 in the circumferential direction, and each mounting groove 111 is provided with a ball bearing. In this way, multiple ball bearings can be used to enhance the motion stability between the anti-shake carrier 12 and the base 11.

[0090] In some embodiments, the damping member 60 includes a body portion 31, a first elastic deformation portion 32, and a second elastic deformation portion 33. The body portion 31 is connected between the anti-shake carrier 12 and the base 11. The first elastic deformation portion 32 is adapted to elastically deform in a first direction X, and the second elastic deformation portion 33 is adapted to elastically deform in a second direction Y.

[0091] It is understood that the first elastic deformation part 32 is adapted to apply damping force in the first direction X, and the second elastic deformation part 33 is adapted to apply damping force in the second direction Y. For example, when the image stabilization carrier 12 moves along the first direction X, if the driving force applied by the image stabilization coil 14 is greater than the elastic restoring force generated after the deformation of the first elastic deformation part 32, the image stabilization carrier 12 can move along the first direction X. If the image stabilization carrier 12 has a tendency to move in the second direction Y, it will cause the second elastic deformation part 33 to deform. At this time, the second elastic deformation part 33 will generate a damping force on the tendency of the image stabilization carrier 12 to move in the second direction Y under the action of its own elastic restoring force, thereby preventing the image stabilization carrier 12 from moving in the second direction Y, thereby ensuring that the image stabilization carrier 12 can move stably in the first direction X, thereby reducing the problem of lens 30 shifting, and thereby improving the image stabilization effect of the motor 10.

[0092] Alternatively, when the image stabilization carrier 12 moves along the second direction Y, if the driving force applied by the image stabilization coil 14 is greater than the elastic restoring force generated after the deformation of the second elastic deformation part 33, the image stabilization carrier 12 can move along the second direction Y. If the image stabilization carrier 12 has a tendency to move in the first direction X, it will cause the first elastic deformation part 32 to deform. At this time, the first elastic deformation part 32 will generate a damping force on the tendency of the image stabilization carrier 12 to move in the first direction X under the action of its own elastic restoring force, thereby preventing the image stabilization carrier 12 from moving in the first direction X, thereby ensuring that the image stabilization carrier 12 can move stably in the second direction Y, thereby reducing the problem of lens 30 shifting, and thereby improving the image stabilization effect of the motor 10.

[0093] In some embodiments, the motor 10 further includes a focusing coil 13, which is mounted on the image stabilization carrier 12 and is used to drive the lens 30 to move in the Z direction of the optical axis.

[0094] It is understandable that in a scenario where the lens 30 is equipped with a focusing magnet 304, after the focusing coil is energized, the focusing coil 13 will generate a magnetic field. Under the action of the magnetic field, the focusing carrier will drive the lens 301 to move synchronously along the optical axis direction Z, thereby adjusting the focal length of the lens 30 and thus realizing the automatic focusing of the camera module 100.

[0095] The damping element 60 is constructed as an electrical connection piece, which is electrically connected between the focusing coil 13 and the electrical connection terminal on the base 11.

[0096] It is understandable that the focusing coil 13 needs to be electrically connected to a power supply device such as a battery via an electrical connection wire. In this application, by embedding a connection terminal in the base 11 and using a damping member 60 as an electrical connection structure between the focusing coil 13 and the connection terminal, the damping member 60 can assist in realizing the image stabilization function while also realizing the electrical connection between the focusing coil 13 and the connection terminal.

[0097] This facilitates the use of the damping element 60 in the image stabilization function to achieve electrical connection between the focusing coil 13 and the connecting terminal, thereby increasing the function of the damping element 60. At the same time, it eliminates the need for a separate electrical connection structure between the focusing coil 13 and the connecting terminal, which reduces the number of such structures and simplifies the structural design of the camera module 100. Furthermore, the reduction in the number of structures makes it easier to reduce the size of the camera module 100, thus facilitating the miniaturization design of the camera module 100.

[0098] In some embodiments, the camera module 100 includes a first module and a second module, wherein the first module can extend into the second module along the optical axis direction Z. The first module includes a lens 30 and a focusing magnet. The lens 30 includes a lens 301 and a bracket 302. The lens 301 is installed inside the bracket 302, and the focusing magnet 304 is installed on the outside of the bracket 302. The second module includes a base 11, a first housing 20, a stabilization coil 14, a stabilization carrier 12, and a focusing coil 13. The stabilization coil 14, the stabilization carrier 12, and the focusing coil 13 are all located inside the first housing 20. The first housing 20 has a first opening 201. The first module is adapted to extend into the first housing 20 along the optical axis direction Z to cooperate with the stabilization carrier 12. The limiting member 40 is adapted to be installed on the outside of the first housing 20 along the installation direction P to limit the separation of the lens 30 from the first housing 20.

[0099] For example, when the first module is located above the second module, the mounting direction P can be the direction of the optical axis Z downwards, and the first module can move along the mounting direction P until it extends into the first housing 20. In this way, the first module can move downwards from above the first module until it extends into the first housing 20.

[0100] It should be noted that, to ensure the unobstructed optical path of lens 30, the base 11 of the second module is provided with a light-passing hole to avoid obstructing the optical path. The radial dimension of a conventional non-integrated lens is generally smaller than the diameter of the light-passing hole. However, because the lens 30 of the first module in this application is an integrated lens 301 embedded within the bracket 302, the radial dimension of lens 30 in this application is larger than that of a conventional non-integrated lens and is larger than the size of the light-passing hole. This prevents lens 30 from moving upwards from below the second module (i.e., in the upward direction of the optical axis Z) until it is assembled with the second module. Therefore, the first module of this application can only be assembled with the second module downwards along the optical axis Z.

[0101] Understandably, the motor components in related technologies are not modularized, making the assembly process of the lens with the motor more complex. In this application, the multiple mechanisms of the camera module 100 are modularized. During assembly, the first module only needs to extend along the optical axis Z into the first opening 201 to complete the assembly with the second module. This simplifies the assembly process of the camera module and helps to improve the assembly efficiency of the camera module.

[0102] In some embodiments, the second module further includes a guide 50, which is disposed on the image stabilization carrier 12 and is used to guide and cooperate with the lens 30 in the direction Z of the optical axis.

[0103] Understandably, during assembly, the first or second module only needs to extend along the optical axis Z into the first opening 201 to complete the assembly with the second or first module by using its guiding cooperation with the guide member 50. This simplifies the assembly process of the camera module and helps to improve the assembly efficiency of the camera module.

[0104] According to the camera module 100 of the above embodiments, this application also proposes an assembly method for the camera module 100, including:

[0105] S10: Control the first module and / or the second module to move along the optical axis direction Z until the first module extends from the first opening 201 into the preset position inside the first housing 20.

[0106] S20: Control the limiting member 40 to move along the installation direction P to the outside of the first housing 20.

[0107] S30: Fixed connection between the limiting member 40 and the first housing 20.

[0108] It is understandable that the preset position refers to the design position, which is generally the position of the first module when a part of the first module is located inside the first housing 20 and exactly abuts against the second module. It can also be other design positions. It is only necessary to control the entry depth during assembly. There are no excessive restrictions here.

[0109] In this way, the lens 30 can be installed without disassembling the motor 10 during assembly, making the assembly process of the lens 30 and the motor 10 simpler and improving the assembly efficiency of the camera module 100. In addition, the limiting member 40 is located on the outside of the first housing 20 to reduce the difficulty of setting the limiting member 40.

[0110] In some embodiments, the second module has a guide 50 located inside the first housing 20. S10: Controlling the first module and / or the second module to move along the optical axis direction Z until the first module extends into a preset position inside the first housing 20 from the first opening 201 includes:

[0111] S11: Control the first module and / or the second module to move along the optical axis Z until the first module is guided and engaged with the guide 50;

[0112] S12: Control the first module and / or the second module to continue moving along the optical axis in the direction Z until the first module extends from the first opening 201 into the preset position inside the first housing 20.

[0113] In this way, the guide component 50 can guide the first module during the assembly process, thereby improving the assembly efficiency of the camera module.

[0114] In some embodiments, the first module has a focusing magnet 304, and the second module has a yoke 70. Controlling the first module and / or the second module to move along the optical axis direction Z until the first module is guided and engaged with the guide member 50 includes:

[0115] S101: Control the first module and / or the second module to move along the optical axis in the direction Z until the focusing magnet 304 and the yoke 70 are in the pre-fit position;

[0116] S102: After the first module and / or the second module moves to the pre-fitting position, control the first module and / or the second module to continue moving along the optical axis direction Z until the first module is guided and fitted with the guide member 50.

[0117] It is understandable that the pre-fitting position is generally when the magnetic yoke 70 on the second module is located within the magnetic field range of the focusing magnet 304 of the first module, and the focusing magnet 304 and the magnetic yoke 70 just sense the position of the first module when they are magnetically attracted.

[0118] In this way, even if the relative positions of the first module and the second module are misaligned when installing the first module, they can be adjusted by the magnetic attraction between the yoke 70 and the focusing magnet 304, so that the side of the first module with the focusing magnet 304 can be accurately aligned with the side of the second module with the yoke 70, thereby preventing the first module from being installed in the wrong direction. That is, the yoke 70 can play a role in preventing mistakes or positioning the installation of the first module.

[0119] In some embodiments, the second module is provided with a stabilizing carrier 12, the guide member 50 includes a metal guide rod detachably connected to the stabilizing carrier 12, and the first module is provided with a sliding groove 3021, or the guide member 50 includes a guide groove 3021, and the first module is provided with a metal guide rod; S11: Controlling the first module and / or the second module to move along the optical axis direction Z until the first module is guided and engaged with the guide member 50 includes:

[0120] S111: Control the first module and / or the second module to move along the optical axis in the direction Z until the slide 3021 engages with the metal guide rod.

[0121] In this way, by setting the guide 50 as a metal guide rod, the metal guide rod can be used to guide the lens 30 during the assembly process, thereby improving the assembly efficiency of the camera module. The detachable metal guide rod also facilitates the maintenance of the metal guide rod in the later stage.

[0122] In some embodiments, the second module is provided with a rollable guide ball 52, and the first module is provided with a guide rail 53 that cooperates with the guide ball 52; or the second module is provided with a guide rail 53, and the first module is provided with a rollable guide ball 52 that cooperates with the guide rail 53; S11: Controlling the first module and / or the second module to move along the optical axis direction Z until the first module is guided and engaged with the guide member 50 includes:

[0123] S112: Control the first module and / or the second module to move along the optical axis in the direction Z until the guide ball 52 and the guide rail 53 are engaged.

[0124] Therefore, the lens 30 can be guided by the cooperation of the guide ball 52 and the guide rail 53. When the lens 30 moves along the mounting direction P, there is rolling friction between the guide rail 53 and the guide ball 52. This helps to reduce the friction force on the lens 30. At the same time, the cooperation of the guide ball 52 and the guide rail 53 helps to improve the movement stability of the lens 30 when it moves along the mounting direction P.

[0125] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0126] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0127] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0128] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A camera module (100), characterized in that, The motor (10) comprises a first housing (20) provided with a first opening (201); a lens (30) partially extends into the first housing (20) along an installation direction through the first opening (201); and a limiting member (40) arranged outside the first housing (20) and used for limiting the lens (30) from separating from the first housing (20). The limiting member (40) comprises a pressing plate provided with a second opening (41) for penetrating the lens (30), and the maximum aperture of the second opening (41) is smaller than that of the first opening (201). The limiting member (40) comprises at least one pressing plate arranged outside the first housing (20) and shielding part of the first opening (201), and the pressing plate is used for limiting the lens (30) from separating from the first housing (20). The lens (30) comprises a lens (301) and a bracket (302), the bracket (302) is a hollow structure, the lens (301) is arranged in the hollow structure, and the bracket (302) is provided with a mounting position (303) for arranging a focusing magnet (304) outside the bracket (302).

2. The camera module (100) according to claim 1, characterized in that, The motor (10) is provided with a guide member (50), and the bracket (302) and the guide member (50) are guided in the direction of the optical axis of the lens (30).

3. The camera module (100) according to claim 1, characterized in that, The motor (10) comprises an anti-shake carrier (12) adapted to be sleeved on the lens (30), and the guide member (50) is located between the anti-shake carrier (12) and the lens (30).

4. The camera module (100) according to claim 1, characterized in that, The guide member (50) comprises a guide rod, and the bracket (302) is provided with a guide groove (3021), and the guide rod and the guide groove (3021) are in sliding fit.

5. The camera module (100) according to claim 4, characterized in that, The guide rod comprises a metal guide rod which is detachably connected with the anti-shake carrier (12).

6. The camera module (100) according to claim 5, characterized in that, The guide member comprises a guide protrusion (51) integrally injection molded with the anti-shake carrier (12), and the bracket (302) is provided with a guide groove (3021), and the guide protrusion (51) and the guide groove (3021) are in sliding fit.

7. The camera module (100) according to claim 6, characterized in that, The guide member (50) comprises guide balls (52) which are rollably mounted on the anti-shake carrier (12), and the bracket (302) is provided with a guide rail (53), and the guide balls (52) and the guide rail (53) are in rolling fit.

8. The camera module (100) according to claim 7, characterized in that, The anti-shake carrier (12) is provided with a focusing coil (13) used for driving the focusing magnet (304) to drive the lens (30) to move along the direction of the optical axis, and the guide member (50) is provided with two, and the focusing coil (13) is close to the plane formed by the two guide members (50).

9. The camera module (100) according to claim 6, characterized in that, ​ 10. The camera module (100) according to claim 6, characterized in that, ​ 11. The camera module (100) according to claim 6, characterized in that, ​ 12. The camera module (100) according to claim 11, characterized in that, The motor (10) further comprises a magnetic yoke (70) arranged on the side of the focusing coil (13) away from the focusing magnet (304), the magnetic yoke (70) being adapted to be magnetically attracted to the focusing magnet (304).

13. The camera module (100) according to any one of claims 1-5, characterized in that, The motor (10) comprises a base (11) provided with single-layer rolling balls (112) capable of rolling, and an anti-shake carrier (12) abutting against the single-layer rolling balls (112), and a damping member (60) connected between the anti-shake carrier (12) and the base (11), the damping member (60) being used to apply a damping force in one of the first direction and the second direction to the anti-shake carrier (12) when the anti-shake carrier (12) moves in the other direction, the first direction and the second direction being both in a plane perpendicular to the optical axis of the lens (30) and intersecting each other.

14. The camera module (100) according to any one of claims 6-12, characterized in that, The motor (10) comprises a base (11) provided with single-layer rolling balls (112) capable of rolling, and an anti-shake carrier (12) abutting against the single-layer rolling balls (112), and a damping member (60) connected between the anti-shake carrier (12) and the base (11), the damping member (60) being used to apply a damping force in one of the first direction and the second direction to the anti-shake carrier (12) when the anti-shake carrier (12) moves in the other direction, the first direction and the second direction being both in a plane perpendicular to the optical axis of the lens (30) and intersecting each other.

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