Camera module and electronic device

Abstract

The application discloses a camera module and electronic equipment, and belongs to the technical field of electronics. The camera module comprises a shell, a lens frame, an optical image stabilization (OIS) assembly, an automatic focusing (AF) assembly and a base. The lens frame comprises a lens frame body and a lens outer frame. The lens frame body is assembled in the interior of the lens outer frame, and the lens frame body and the lens outer frame are relatively movable. The lens frame is assembled between the shell and the base. The OIS assembly comprises an OIS electromagnetic structure and an OIS sensor. The OIS electromagnetic structure and the OIS sensor are arranged on the side of the lens frame body away from the base. The AF assembly comprises an AF electromagnetic structure and an AF sensor. The AF electromagnetic structure and the AF sensor are assembled between the bottom of the lens outer frame and the bottom of the base. The OIS electromagnetic structure is used for driving the lens frame body to rotate along an OIS axis relative to the lens outer frame. The AF electromagnetic structure is used for driving the lens outer frame to move along an optical axis direction relative to the lens frame body.

Description

Technical Field

[0001] This application belongs to the field of electronic technology, specifically relating to a camera module and an electronic device. Background Technology

[0002] As users become increasingly reliant on mobile phones and other electronic devices, and as usage scenarios become more complex, users' demands for camera functions continue to rise, making camera modules an indisputable core component of mobile electronic devices. Among these, optical image stabilization (OIS) motors are standard features in mid-to-high-end models. However, in the overall device layout, the magnetic interference between the motor magnets of different modules has become a key constraint affecting the product's appearance.

[0003] Currently, common OIS implementations include Korean ball bearing OIS motors, domestic suspension wire OIS motors, sensor shift (SS) OIS motors, and shape memory alloy (SMA) OIS motors. Except for SMA motors, the other three motor implementations rely on electromagnetic drives. Domestic suspension wire OIS motors typically require magnets to be arranged on all four sides, Korean ball bearing OIS motors typically require magnets to be arranged on three sides, and SS OIS motors require magnets to be arranged at the four corners.

[0004] It is evident that when implementing multi-camera setups, especially in high-end models, existing electromagnetic OIS motors present significant layout challenges, and the magnetic interference between modules also has a substantial impact. Summary of the Invention

[0005] The purpose of this application is to provide a camera module and electronic device that can solve the problems of significant layout difficulties and large magnetic interference between modules in electromagnetic OIS motors.

[0006] In a first aspect, embodiments of this application propose a camera module, including: a housing, a lens frame, an optical image stabilization (OIS) component, an autofocus (AF) component, and a base; The lens frame includes a lens body and a lens outer frame. The lens body is assembled inside the lens outer frame, and the lens body and the lens outer frame are movable relative to each other. The lens frame is assembled between the outer shell and the base. The OIS component includes an OIS electromagnetic structure and an OIS sensor, both of which are disposed on the side of the lens frame facing away from the base. The AF assembly includes an AF electromagnetic structure and an AF sensor, both of which are mounted between the bottom of the lens frame and the bottom of the base. The OIS electromagnetic structure is used to drive the lens frame to rotate relative to the lens outer frame along the OIS axis, and the OIS sensor is used to detect the displacement of the lens frame relative to the lens outer frame along the OIS axis; the AF electromagnetic structure is used to drive the lens outer frame to move relative to the lens frame along the optical axis, and the AF sensor is used to detect the displacement of the lens outer frame relative to the lens frame along the optical axis.

[0007] Secondly, embodiments of this application provide an electronic device, including: a housing and the camera module described in the first aspect.

[0008] In the embodiments of this application, the OIS image stabilization electromagnetic structure is arranged only on the outer side and bottom side of the lens frame, which can leave two non-magnetic sides free. Compared with the existing camera drive motor structure that uses three-sided and four-sided magnet layout, it can greatly reduce the restriction on the overall camera layout. In addition, the side where the OIS axis is not on the same side as the AF axis can also significantly reduce the magnetic interference of the motor to the outside due to the change in the direction of magnetization and the relatively small size of the magnet.

[0009] 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

[0010] 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: Figure 1 This is an exploded view of a camera module according to an embodiment of this application; Figure 2a and Figure 2b This is a schematic diagram showing the detailed structure of the opposite two sides of the lens carrier according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the locking steel sheet according to an embodiment of this application; Figure 4 This is a schematic diagram showing the detailed structure of the lens frame according to an embodiment of this application; Figure 5 This is an assembly diagram of a camera module according to an embodiment of this application; Figure 6 This is a schematic diagram of the rolling groove structure on the lens frame and the base according to an embodiment of this application; Figure 7 This is a front view of a camera module according to an embodiment of this application; Figure 8 This is a top view of a camera module according to an embodiment of this application. Detailed Implementation

[0011] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0012] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and do not limit the number of objects; for example, a first object can be one or more. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0013] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0014] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0015] This application provides a novel OIS (Optical Image Stabilization) solution based on electromagnetic drive. It replaces translational stabilization with rotational stabilization and uses electromagnets to drive the OIS component. One stabilization axis's drive magnet can be placed near the AF (Action Focusing) axis magnet, while the other stabilization axis occupies only one side of the motor. This allows the motor's drive magnets to be arranged using only two sides. By leaving two non-magnetic sides free, and considering the change in magnetization direction and the relatively small size of the magnets on the side where the OIS axis is not on the same side as the AF axis, the magnetic interference is significantly lower than in conventional electromagnetic OIS motors. The following detailed description, in conjunction with the accompanying drawings, of the camera module structure provided in this application through specific embodiments and application scenarios, further illustrates this solution.

[0016] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a camera module provided in an embodiment of this application. Figure 1 As shown, the camera module 100 includes: The components include: housing 101, lens frame 102, optical image stabilization (OIS) assembly 103, autofocus (AF) assembly 104, and base 105. The lens frame 102 includes a lens frame 1021 and a lens outer frame 1022. The lens frame 1021 is assembled inside the lens outer frame 1022, and the lens frame 1021 and the lens outer frame 1022 are movable relative to each other. The lens frame 102 is assembled between the outer shell 101 and the base 105. OIS assembly 103 includes OIS electromagnetic structure 1031 and OIS sensor 1032, both of which are located on the side of lens frame 1021 facing away from base 105. AF assembly 104 includes AF electromagnetic structure 1041 and AF sensor 1042, both of which are mounted between the bottom of lens frame 1022 and the bottom of base 105. Among them, the OIS electromagnetic structure 1031 is used to drive the lens frame 1021 to rotate relative to the lens outer frame 1022 along the OIS axis, and the OIS sensor 1032 is used to detect the displacement of the lens frame 1021 relative to the lens outer frame 1022 along the OIS axis; the AF electromagnetic structure 1041 is used to drive the lens outer frame 1022 to move relative to the lens frame 1021 along the optical axis, and the AF sensor 1042 is used to detect the displacement of the lens outer frame 1022 relative to the lens frame 1021 along the optical axis.

[0017] The camera module 100 provided in this embodiment includes the following components: Figure 1 As shown, from left to right, the module includes a housing 101, a lens frame 102, an OIS component 103, an AF component 104, and a base 105. The housing 101 and the base 105 are the housing structure of the camera module 100, and the two can be assembled to form an internal space. The lens frame 102, the OIS component 103, and the AF component 104 are disposed in the internal space. The OIS component 103 and the AF component 104 can be respectively disposed on the outer surface of the lens frame 102. That is, the lens frame 102 serves as the carrier of the OIS component 103 and the AF component 104. The OIS component 103 is used to realize the OIS image stabilization function for video recording, and the AF component 104 is used to realize the focusing function for video recording.

[0018] Specifically, the assembly hierarchy of the camera module 100 is as follows: the outermost layer is the frame part, including the outer shell 101 and the base 105; the middle layer is the AF driving part, namely the AF component 104, including the AF electromagnetic structure 1041 and the AF sensor 1042. The AF electromagnetic structure 1041 is located on the outer carrier of the OIS component 103, that is, it is set on the lens outer frame 1022. Specifically, the AF electromagnetic structure 1041 and the AF sensor 1042 are both assembled between the bottom of the lens outer frame 1022 and the bottom of the base 105; the innermost layer is the OIS driving part, including the lens frame 102 and the OIS component 103. The OIS component 103 is set on the lens frame 102. The OIS component 103 includes the OIS electromagnetic structure 1031 and the OIS sensor 1032. The OIS electromagnetic structure 1031 and the OIS sensor 1032 are both set on one side of the lens frame 1021, specifically the side of the lens frame 1021 facing away from the base 105.

[0019] like Figure 1 As shown, the lens frame 102 includes a lens body 1021 and a lens outer frame 1022. The lens body 1021 is assembled inside the lens outer frame 1022, meaning the two can be fastened together. The lens body 1021 and the lens outer frame 1022 can not be in a fixed assembly relationship, but rather can move relative to each other. Specifically, the lens body 1021 and the lens outer frame 1022 can be connected in a movable manner, such as a sliding connection or a rotating connection. Specifically, the lens body 1021 can rotate or translate relative to the lens outer frame 1022, such as rotating left and right around the OIS axis, or translating back and forth along the optical axis T. The lens frame 102 is assembled between the outer shell 101 and the base 105, that is, it is disposed within the space formed by the outer shell 101 and the base 105.

[0020] Understandably, camera module 100 also includes modules not included in... Figure 1The lens module shown in the diagram is installed in the voice coil motor (VCM), also known as the AF assembly 104. Specifically, the lens module is installed through the lens mounting hole 1001 on the AF assembly 104. That is, when assembling the camera module, the lens module can be installed in a way that allows it to be mounted in a specific configuration. Figure 7 The assembled structure in the lens mounting hole 1001 shown is the camera module. Figure 8 This is a top view of the assembled camera module. The VCM (Video Module Controller) is responsible for driving the lens module to move up and down to achieve focusing. The entire VCM is then mounted onto the camera module's bracket or base, aligning and combining with the image sensor.

[0021] The main working principle of the camera module 100 provided in this application embodiment is as follows: An electromagnetic field is generated by the OIS electromagnetic structure 1031, which interacts with the internal magnet to produce attraction or repulsion. This attraction or repulsion drives the lens frame 1021 to rotate relative to the lens outer frame 1022. Specifically, this rotation can be along the OIS axis, which can be either the X-axis or the Y-axis. Figure 1 As indicated by the arrows, it's important to note that the rotation of the lens frame 1021 along the OIS axis is a rotational motion, i.e., rotation around the X or Y axis, not a translational motion along the X or Y axis. The OIS sensor 1032 can be used to detect the real-time position of the lens frame 1021 relative to the lens outer frame 1022, determining the displacement of the lens frame 1021 relative to the lens outer frame 1022 along the OIS axis. The displacement is fed back to the camera module IC in real time, and the camera module IC continues to adjust the electromagnetic field based on the current displacement and image stabilization parameters to achieve closed-loop control of OIS image stabilization. An electromagnetic field is generated by the AF electromagnetic structure 1041, which interacts with the internal magnet to produce attraction or repulsion, driving the lens outer frame 1022 to translate relative to the lens frame 1021 along the optical axis. The AF sensor 1042 is used to detect the displacement of the lens outer frame 1022 relative to the lens frame 1021 along the optical axis.

[0022] The closed-loop control process of focusing and image stabilization of the camera module 100 in this embodiment is as follows: the image signal processor (ISP) sends a target signal to the camera module IC. The camera module IC controls the driving current in the coil to achieve focusing or image stabilization of the camera module. The OIS sensor 1032 and AF sensor 1042 sense the magnetic field signal to determine the real-time position of the lens and feed back the position signal to the camera module IC. The camera module IC continues to adjust the driving current in the coil to achieve focusing and image stabilization of the camera module IC until the lens moves to the target position.

[0023] In this embodiment, the OIS electromagnetic structure 1031 is disposed on the outer side of the lens frame 1021, and the AF electromagnetic structure 1041 is disposed at the bottom of the lens frame 1022, i.e. the bottom surface. In this way, the layout of the electromagnetic drive structure is realized by utilizing only two sides of the camera module, saving layout space and reducing the magnetic interference caused by the electromagnetic structure to the outside.

[0024] Optionally, the lens frame 1021 includes: a lens carrier 10211 and a locking steel sheet 10212, the locking steel sheet 10212 being disposed between the housing 101 and the lens carrier 10211; the OIS electromagnetic structure 1031 includes: an OIS coil 10311, an OIS driving magnet 10312 and a detection magnet 10313; The OIS driving magnet 10312 is disposed at a first position on the first outer side 201 of the lens carrier 10211, and the OIS coil 10311 is disposed at a second position on the second outer side 202 of the locking steel sheet 10212. The first outer side 201 is the side of the lens carrier 10211 facing the locking steel sheet 10212, and the second outer side 202 is the side of the locking steel sheet 10212 facing the lens carrier 10211. The second position corresponds to the first position. The detection magnet 10313 is disposed at the third position on the first outer side 201, and the OIS sensor 1032 is disposed at the fourth position on the second outer side 202, the fourth position corresponding to the third position; The OIS coil 10311 is used to cooperate with the OIS driving magnet 10312 to generate an attractive or repulsive force, thereby driving the lens carrier 10211 to rotate relative to the lens frame 1022 along the OIS axis, and thus causing a relative displacement between the detection magnet 10313 and the OIS sensor 1032.

[0025] In some embodiments, such as Figure 1As shown, the lens frame 1021 includes a lens carrier 10211 and a locking steel plate 10212. The locking steel plate 10212 is disposed between the outer shell 101 and the lens carrier 10211. The OIS electromagnetic structure 1031 includes an OIS coil 10311, an OIS driving magnet 10312, and a detection magnet 10313. An iron core can be disposed on the locking steel plate 10212. The OIS coil 10311 is a coil structure used to generate an electromagnetic field when energized. The OIS driving magnet 10312 is a magnet structure that can interact with the OIS coil. The coil 10311 works in conjunction with the lens carrier 10211. Under the influence of the electromagnetic field, the two elements attract or repel each other, thereby generating an attractive or repulsive force. This attractive or repulsive force drives the lens carrier 10211 to rotate relative to the lens frame 1022. The detection magnet 10313 works in conjunction with the OIS sensor 1032. When the lens carrier 10211 rotates relative to the lens frame 1022, a relative displacement is generated between the detection magnet 10313 and the OIS sensor 1032. The OIS sensor 1032 detects this displacement to obtain the amount of movement displacement of the lens carrier 10211.

[0026] In a specific implementation, coils, magnets, and sensors can be arranged on the two sides opposite to the lens carrier 10211 of the locking steel sheet 10212, for example, as shown below. Figure 1 As shown, the OIS driving magnet 10312 is disposed at a first position on the first outer side 201 of the lens carrier 10211, and the OIS coil 10311 is disposed at a second position on the second outer side 202 of the locking steel sheet 10212 corresponding to the first position. Here, the position correspondence can be understood as being directly opposite, or the projection of the second position on the first outer side 201 partially coincides with or completely overlaps with the first position.

[0027] In some embodiments, an iron core can be placed at the second position of the locking steel sheet 10212, and the OIS coil 10311 can be wound around the iron core to form an electromagnet. In some embodiments, in order to ensure a good magnetic drive effect, multiple iron cores and OIS coils 10311 can be placed on the locking steel sheet 10212 to form multiple electromagnets. Correspondingly, multiple OIS driving magnets 10312 are placed on the first outer side 201 of the lens carrier 10211 to ensure that each OIS coil 10311 has a corresponding OIS driving magnet 10312, and the two cooperate with each other to generate a magnetic drive effect.

[0028] Alternatively, the detection magnet 10313 can be placed at the third position on the first outer side 201 of the lens carrier 10211, and the OIS sensor 1032 can be placed at the fourth position on the second outer side 202 of the locking steel sheet 10212, corresponding to the third position.

[0029] Optionally, the first position is located at the side edge of the first outer side 201 of the lens carrier 10211, and correspondingly, the second position is located at the side edge of the second outer side 202 of the locking steel sheet 10212. For example, the OIS driving magnet 10312 can be arranged at the edge corner of the first outer side 201.

[0030] Optionally, the third position is located on the side of the first outer surface 201 of the lens carrier 10211, and correspondingly, the fourth position is located on the side of the second outer surface 202 of the locking steel sheet 10212. The third position is different from the first position, and there is an appropriate interval between the third position and the first position. The fourth position is different from the second position, and there is an appropriate interval between the fourth position and the second position. For example, the detection magnet 10313 can be positioned at the center of the side of the first outer surface 201.

[0031] For example, such as Figure 2a As shown, in one specific implementation, five grooves can be formed on the top surface (first outer surface 201) of the lens carrier 10211, respectively for placing the OIS driving magnet 10312 and the OIS detection magnet 10313. Groove 1 is the attachment groove for the OIS detection magnet 10313, and groove 2 is the attachment groove for the OIS driving magnet 10312. For example... Figure 3 As shown, an iron core 102120 is distributed at the three corners of the locking steel sheet 10212, and a total of three iron cores are arranged. An OIS coil 10311 is wound around the outside of the iron core 102120. An OIS sensor 1032 is attached to the locking steel sheet 10212 at the position corresponding to the OIS detection magnet 10313. When the OIS coil 10311 is energized, it forms an electromagnet with the corresponding iron core, attracting or repelling the OIS driving magnet 10312 inside the lens carrier 10211. This drives the lens carrier 10211 to rotate relative to the lens frame 1022, resulting in a relative displacement between the OIS detection magnet 10313 and the OIS sensor 1032. The camera module IC controls the driving current of the OIS coil 10311 based on the relative displacement detected by the OIS sensor 1032, thereby controlling the driving force on the OIS driving magnet 10312. This driving force is then converted into the amount of relative rotation between the lens carrier 10211 and the lens frame 1022, thus forming a closed-loop control.

[0032] Thus, this implementation method ensures that the rotational movement of the lens carrier 10211 relative to the lens frame 1022 can be controlled by the electromagnetic structure reasonably arranged on both sides of the lens carrier 10211 and the locking steel sheet 10212, thereby achieving the OIS rotational image stabilization function. Furthermore, the magnets used in this scheme can be relatively miniaturized, and external magnetic interference can be significantly reduced.

[0033] Optionally, a plurality of spherical grooves 1064 are distributed on the first inner side 301 of the lens carrier 10211, and the first inner side 301 is the side of the lens carrier 10211 facing the lens outer frame 1022. The second inner side 302 of the lens frame 1022 is provided with a plurality of spherical protrusions 1065. The second inner side 302 is the side of the lens frame 1022 facing the lens carrier 10211. The number of the plurality of spherical protrusions 1065 and the plurality of spherical grooves 1064 are the same, and the positions, shapes and sizes of the plurality of spherical protrusions 1065 and the plurality of spherical grooves 1064 are all matched. When the lens carrier 10211 is assembled with the lens frame 1022, a spherical protrusion 1065 is located in a spherical groove 1064.

[0034] In some embodiments, a spherical groove structure can be used to achieve a movable connection between the lens carrier 10211 and the lens outer frame 1022, allowing the lens carrier 10211 to rotate relative to the lens outer frame 1022 around the OIS axis. Specifically, this can be achieved as follows: Figure 2b As shown, multiple spherical grooves 1064 are distributed on the first inner side surface 301 of the lens carrier 10211, such as four spherical grooves 1064 evenly distributed at four different positions on the first inner side surface 301. Multiple matching spherical protrusions 1065 are distributed on the second inner side surface 302 of the lens frame 1022. That is, each spherical protrusion 1065 corresponds to the position of each spherical groove 1064, and their shapes and sizes are all matched. A spherical protrusion 1065 can be correspondingly accommodated in the spherical groove 1064 at the corresponding position, so that the spherical protrusion 1065 can move and rotate in the spherical groove 1064. Through this structural design, the lens carrier 10211 can rotate relative to the lens frame 1022 around the OIS axis.

[0035] Furthermore, multiple spherical grooves 1064 are evenly distributed around the first lens mounting hole 10201 on the first inner side surface 301; multiple spherical protrusions 1065 are evenly distributed around the second lens mounting hole 10202 on the second inner side surface 302.

[0036] In some embodiments, a plurality of spherical grooves 1064 may be evenly distributed around the first inner surface 301 of the lens carrier 10211 around the first lens mounting hole 10201. For example, Figure 2b As shown, a spherical groove 1064, also called a ball bearing groove, is centrally located on each of the four sides (top, bottom, left, right) of the first inner surface 301 of the lens carrier 10211. These four spherical grooves are part of a sphere and are evenly distributed around the first lens mounting hole 10201. Correspondingly, multiple spherical protrusions 1065 can be evenly distributed around the second inner surface 302 of the lens frame 1022 around the second lens mounting hole 10202. For example, as shown... Figure 4 As shown, a spherical protrusion 1065 is centrally located on each of the four sides (top, bottom, left, and right) of the second inner surface 302 of the lens frame 1022. The protrusions are part of a sphere in appearance. These four spherical protrusions 1065 are evenly distributed around the second lens mounting hole 10202. This ensures uniform force distribution for rotational control between the lens carrier 10211 and the lens frame 1022, resulting in stable and smooth relative rotational operation. Furthermore, it enables rotational image stabilization control around the X and Y axes of the OIS (Optical Image Stabilizer).

[0037] Optionally, the OIS assembly 103 further includes an OIS spring assembly, the OIS spring assembly including at least one of a first OIS spring 10331 and a second OIS spring 10332; The top 204 of the lens carrier 10211 is provided with a first spring clip mounting structure 10341, and the third inner side 303 of the lens frame 1022 is provided with a second spring clip mounting structure 10342. The first OIS spring clip 10331 is fixedly mounted between the top 204 and the third inner side 303 through the first spring clip mounting structure 10341 and the second spring clip mounting structure 10342. The third inner side 303 is the inner side of the lens frame 1022 that is opposite to the top 204. And / or, The third outer side 203 of the lens carrier 10211 is provided with a third spring clip mounting structure 10343, and the fourth inner side 304 of the lens frame 1022 is provided with a fourth spring clip mounting structure 10344. The second OIS spring clip 10332 is fixedly mounted between the third outer side 203 and the fourth inner side 304 through the third spring clip mounting structure 10343 and the fourth spring clip mounting structure 10344. The third outer side 203 is perpendicular to the top 204 and bottom of the lens carrier 10211 and does not face the outer shell 101. The fourth inner side 304 is the inner side of the lens frame 1022 opposite to the third outer side 203. The OIS spring assembly provides a balancing force for return to position when the lens carrier 10211 rotates relative to the lens outer frame 1022 along the OIS axis.

[0038] In some embodiments, such as Figure 1 As shown, the OIS assembly 103 may further include an OIS spring assembly. Specifically, a first OIS spring 10331 may be arranged between the top 204 of the lens carrier 10211 and the top of the inner side of the lens frame 1022, i.e., the third inner side 303. A second OIS spring 10332 may be arranged between the third outer side 203 of the lens carrier 10211 and the fourth inner side 304 of the lens frame 1022. That is, either the first OIS spring 10331 or the second OIS spring 10332 may be arranged, or both may be arranged simultaneously. In this way, the lens carrier 10211 and the lens frame 1022 can be connected by the OIS spring assembly, and the relative rotational movement between the lens carrier 10211 and the lens frame 1022 can be stably controlled by the elastic extension force of the spring assembly, providing a balancing force for their return to position at all times.

[0039] In a specific implementation, a first spring-loaded mounting structure 10341 can be provided on the top 204 of the lens carrier 10211, and a second spring-loaded mounting structure 10342 can be provided on the third inner side 303 of the lens frame 1022. The first OIS spring 10331 is fixedly installed between the top of the lens carrier 10211 and the top of the lens frame 1022 through the first spring-loaded mounting structure 10341 and the second spring-loaded mounting structure 10342. Alternatively, a third spring-loaded mounting structure 10343 can be provided on the third outer side 203 of the lens carrier 10211, and a fourth spring-loaded mounting structure 10344 can be provided on the fourth inner side 304 of the lens frame 1022. The second OIS spring 10332 is fixedly installed between the outer side of the lens carrier 10211 and the outer side of the lens frame 1022 through the third spring-loaded mounting structure 10343 and the fourth spring-loaded mounting structure 10344.

[0040] In some embodiments, the first spring-loaded mounting structure 10341 and the second spring-loaded mounting structure 10342 may be multiple protruding structures serving as suspension points for the spring-loaded assembly, thereby suspending and fastening the OIS assembly 103 to the top and outer side of the lens carrier 10211. For example, as... Figure 2a As shown, the top and right side of the lens carrier 10211 are designed with OIS spring suspension points, namely the first spring mounting structure 10341 and the second spring mounting structure 10342. The OIS spring suspension points are used to suspend the first OIS spring 10331 and the second OIS spring 10332 to realize the connection of the spring assembly.

[0041] Thus, when the lens carrier 10211 rotates relative to the lens outer frame 1022 around the X-axis or Y-axis, it is subjected to the reverse pulling force of the OIS spring assembly on the opposite side, thereby forming a relative equilibrium state. That is, the OIS spring assembly can always provide a pulling force to return the lens carrier 10211 to its initial upright position. It can be understood that the key structure for the lens carrier 10211 to rotate relative to the lens outer frame 1022 is the four spherical groove structures on the inner side of the lens carrier 10211 and the four spherical protrusion structures on the bottom of the lens outer frame 1022. After the drive motor is powered off, due to the rigidity of the OIS spring assembly itself, the lens carrier 10211, where the iron core and electromagnetic structure are located, can return to its initial natural state.

[0042] Optionally, the AF electromagnetic structure 1041 includes: an AF coil 10411 and an AF driving magnet 10412; An AF driving magnet 10412 is disposed at the bottom of the lens frame 1022, an AF coil 10411 is disposed on the AF sensor 1042, and the AF coil 10411 and the AF driving magnet 10412 are stacked at the bottom of the lens frame 1022 along the optical axis. The AF coil 10411 is used to cooperate with the AF driving magnet 10412 to generate an attractive or repulsive force, thereby driving the lens frame 1022 to translate relative to the lens carrier 10211 along the optical axis, and thus causing a relative displacement between the AF driving magnet 10412 and the AF sensor 1042.

[0043] In some embodiments, such as Figure 1 As shown, the AF electromagnetic structure 1041 specifically includes an AF coil 10411 and an AF driving magnet 10412. The AF driving magnet 10412 is disposed at the bottom of the lens outer frame 1022, and the AF coil 10411 is disposed on the AF sensor 1042, stacked vertically with the AF driving magnet 10412 at the bottom of the lens outer frame 1022. A detailed assembly diagram can be found in [reference needed]. Figure 5 .

[0044] The AF coil 10411 and AF drive magnet 10412 work together to achieve translational movement along the AF axis, i.e., the optical axis. Combined with the AF sensor 1042, a closed loop of AF axis movement can be achieved, thereby realizing the autofocus function of the camera module.

[0045] Optionally, the AF component 104 also includes a ball bearing 1043; The bottom of the lens frame 1022 is provided with a first roller groove 1061, and the bottom of the base 105 is provided with a second roller groove 1062. The positions, shapes and sizes of the first roller groove 1061 and the second roller groove 1062 are compatible. When the lens frame 1022 and the base 105 are assembled, the first roller groove 1061 and the second roller groove 1062 form a ball groove 1063, and the ball 1043 is installed in the ball groove 1063.

[0046] In some embodiments, the lens frame 1022 and the base 105 can be movably connected through a structure of a sliding groove and a ball bearing, so that the lens frame 1022 can slide relative to the base 105. Since the lens frame 1022 and the lens carrier 10211 are assembled as one unit, the lens carrier 10211 can be driven to translate in the optical axis direction.

[0047] Specifically, such as Figure 1 As shown, the AF assembly 104 also includes a ball bearing 1043, a first groove 1061 is provided at the bottom of the lens frame 1022, and a second groove 1062 is provided at the bottom of the base 105 that matches the shape and size of the first groove 1061, and as... Figure 6 As shown, the first roller groove 1061 at the bottom of the lens frame 1022 and the second roller groove 1062 at the bottom of the base 105 form a ball groove 1063 in the assembled state, and the ball 1043 is installed in the ball groove 1063.

[0048] It should be noted that the number of ball bearings 1043 can be one or more, and the number of grooves can also be set to one or more. The specific settings can be reasonably configured according to actual needs, and the position of the grooves can be reasonably arranged at appropriate positions on the lens frame 1022 and the bottom of the base 105.

[0049] Optionally, the bottom sides of the lens frame 1022 are provided with first grooves 1061, and the bottom sides of the base 105 are provided with second grooves 1062.

[0050] In some embodiments, such as Figure 6 As shown, a rolling groove can be provided on both sides of the bottom of the lens frame 1022 and the bottom of the base 105, so that a ball bearing groove is formed on each side when assembled. This makes it easier for the lens frame 1022 and the base 105 to make relatively stable translational movements.

[0051] Optionally, the AF assembly 104 also includes: an AF adsorption steel sheet 1044; The AF adsorption steel sheet 1044 and the AF electromagnetic structure 1041 are stacked and disposed between the bottom of the lens frame 1022 and the bottom of the base 105. The AF adsorption steel sheet 1044 is used to press the ball 1043 into the ball groove 1063.

[0052] In some embodiments, such as Figure 1 As shown, the AF assembly 104 may further include an AF adsorption steel sheet 1044, and as Figure 5 As shown, the AF adsorption steel sheet 1044 can be stacked on top of the AF electromagnetic structure 1041, so that the ball 1043 can be pressed into the ball groove 1063 by the cooperation of the AF adsorption steel sheet 1044 and the AF driving magnet 10412, thus preventing derailment.

[0053] The embodiments of this application use an electromagnetic method to realize the OIS drive motor structure design of the magnets on both sides, which greatly reduces the limitation of the three-sided and four-sided magnet layout on the overall camera layout; the OIS component adopts a rotation control method, which is easy to realize large-angle anti-shake control in terms of structure.

[0054] A camera module according to an embodiment of this application includes: a housing, a lens frame, an optical image stabilization (OIS) component, an autofocus (AF) component, and a base; the lens frame includes a lens body and a lens outer frame, the lens body is assembled inside the lens outer frame, and the lens body and the lens outer frame are movable relative to each other; the lens frame is assembled between the housing and the base; the OIS component includes an OIS electromagnetic structure and an OIS sensor, both of which are disposed on the side of the lens body facing away from the base; the AF component includes an AF electromagnetic structure and an AF sensor, both of which are assembled between the bottom of the lens outer frame and the bottom of the base; wherein, the OIS electromagnetic structure is used to drive the lens body to rotate relative to the lens outer frame along the OIS axis, and the OIS sensor is used to detect the displacement of the lens body relative to the lens outer frame along the OIS axis; the AF electromagnetic structure is used to drive the lens outer frame to move relative to the lens body along the optical axis, and the AF sensor is used to detect the displacement of the lens outer frame relative to the lens body along the optical axis. In this way, by arranging the OIS image stabilization electromagnetic structure only on the outer and bottom sides of the lens frame, two non-magnetic sides can be left free. Compared with the existing camera drive motor structure that uses a three- or four-sided magnet layout, this can greatly reduce the restrictions on the overall camera layout. In addition, the side where the OIS axis is not on the same side as the AF axis can also significantly reduce the magnetic interference of the motor to the outside due to the change in the direction of magnetization and the relatively small size of the magnet.

[0055] This application also provides an electronic device, including a housing and the camera module provided in the above embodiments.

[0056] Other components of the electronic device according to the embodiments of this application, such as communication modules and controllers, as well as their operation, are known to those skilled in the art and will not be described in detail here.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A camera module, characterized in that, include: The housing (101), lens frame (102), optical image stabilization (OIS) assembly (103), autofocus (AF) assembly (104), and base (105). The lens frame (102) includes a lens body (1021) and a lens outer frame (1022). The lens body (1021) is assembled inside the lens outer frame (1022), and the lens body (1021) and the lens outer frame (1022) are movable relative to each other. The lens frame (102) is assembled between the outer shell (101) and the base (105). The OIS component (103) includes an OIS electromagnetic structure (1031) and an OIS sensor (1032), both of which are disposed on the side of the lens frame (1021) facing away from the base (105). The AF assembly (104) includes an AF electromagnetic structure (1041) and an AF sensor (1042), both of which are mounted between the bottom of the lens frame (1022) and the bottom of the base (105). The OIS electromagnetic structure (1031) is used to drive the lens frame (1021) to rotate relative to the lens outer frame (1022) along the OIS axis, and the OIS sensor (1032) is used to detect the displacement of the lens frame (1021) relative to the lens outer frame (1022) along the OIS axis; the AF electromagnetic structure (1041) is used to drive the lens outer frame (1022) to move relative to the lens frame (1021) along the optical axis, and the AF sensor (1042) is used to detect the displacement of the lens outer frame (1022) relative to the lens frame (1021) along the optical axis.

2. The camera module according to claim 1, characterized in that, The lens frame (1021) includes a lens carrier (10211) and a locking steel sheet (10212), the locking steel sheet (10212) being disposed between the outer shell (101) and the lens carrier (10211); the OIS electromagnetic structure (1031) includes an OIS coil (10311), an OIS driving magnet (10312), and a detection magnet (10313). The OIS driving magnet (10312) is disposed at a first position on the first outer side (201) of the lens carrier (10211), and the OIS coil (10311) is disposed at a second position on the second outer side (202) of the locking steel sheet (10212). The first outer side (201) is the side of the lens carrier (10211) facing the locking steel sheet (10212), and the second outer side (202) is the side of the locking steel sheet (10212) facing the lens carrier (10211). The second position corresponds to the first position. The detection magnet (10313) is disposed at the third position on the first outer side (201), and the OIS sensor (1032) is disposed at the fourth position on the second outer side (202), the fourth position corresponding to the third position; The OIS coil (10311) is used to cooperate with the OIS driving magnet (10312) to generate an attractive or repulsive force to drive the lens carrier (10211) to rotate relative to the lens frame (1022) along the OIS axis, thereby causing a relative displacement between the detection magnet (10313) and the OIS sensor (1032).

3. The camera module according to claim 1 or 2, characterized in that, The first inner side (301) of the lens carrier (10211) is provided with a plurality of spherical grooves (1064), and the first inner side (301) is the side of the lens carrier (10211) facing the lens outer frame (1022); The second inner side (302) of the lens frame (1022) is provided with a plurality of spherical protrusions (1065). The second inner side (302) is the side of the lens frame (1022) facing the lens carrier (10211). The number of the plurality of spherical protrusions (1065) is the same as the number of the plurality of spherical grooves (1064), and the positions and shapes of the plurality of spherical protrusions (1065) and the plurality of spherical grooves (1064) are all adapted. When the lens carrier (10211) is assembled with the lens frame (1022), one of the spherical protrusions (1065) is located in one of the spherical grooves (1064).

4. The camera module according to claim 3, characterized in that, The plurality of spherical grooves (1064) are evenly distributed around the first lens mounting hole (10201) of the first inner side surface (301); the plurality of spherical protrusions (1065) are evenly distributed around the second lens mounting hole (10202) of the second inner side surface (302).

5. The camera module according to any one of claims 2 to 4, characterized in that, The OIS component (103) further includes an OIS spring assembly, which includes at least one of a first OIS spring (10331) and a second OIS spring (10332); The top (204) of the lens carrier (10211) is provided with a first spring clip mounting structure (10341), and the third inner side (303) of the lens frame (1022) is provided with a second spring clip mounting structure (10342). The first OIS spring clip (10331) is fixedly mounted between the top (204) and the third inner side (303) through the first spring clip mounting structure (10341) and the second spring clip mounting structure (10342). The third inner side (303) is the side of the lens frame (1022) that is opposite to the top (204). And / or, The lens carrier (10211) has a third outer side (203) with a third spring clip mounting structure (10343), and the lens frame (1022) has a fourth inner side (304) with a fourth spring clip mounting structure (10344). The second OIS spring clip (10332) is fixedly mounted between the third outer side (203) and the fourth inner side (304) through the third spring clip mounting structure (10343) and the fourth spring clip mounting structure (10344). The third outer side (203) is perpendicular to the top (204) and bottom of the lens carrier (10211) and does not face the outer shell (101). The fourth inner side (304) is the inner side of the lens frame (1022) opposite to the third outer side (203). The OIS spring assembly is used to provide a balancing force for return when the lens carrier (10211) rotates relative to the lens outer frame (1022) along the OIS axis.

6. The camera module according to any one of claims 1 to 5, characterized in that, The AF electromagnetic structure (1041) includes: an AF coil (10411) and an AF driving magnet (10412). The AF driving magnet (10412) is disposed at the bottom of the lens frame (1022), the AF coil (10411) is disposed on the AF sensor (1042), and the AF coil (10411) and the AF driving magnet (10412) are stacked at the bottom of the lens frame (1022) along the optical axis. The AF coil (10411) is used to cooperate with the AF driving magnet (10412) to generate an attractive or repulsive force to drive the lens frame (1022) to translate relative to the lens carrier (10211) along the optical axis, thereby causing a relative displacement between the AF driving magnet (10412) and the AF sensor (1042).

7. The camera module according to any one of claims 1 to 6, characterized in that, The AF assembly (104) also includes a ball (1043). The bottom of the lens frame (1022) is provided with a first roller groove (1061), and the bottom of the base (105) is provided with a second roller groove (1062). The first roller groove (1061) and the second roller groove (1062) are matched in terms of position, shape and size. When the lens frame (1022) and the base (105) are assembled, the first roller groove (1061) and the second roller groove (1062) form a ball groove (1063), and the ball (1043) is installed in the ball groove (1063).

8. The camera module according to claim 7, characterized in that, The lens frame (1022) has the first roller groove (1061) on both sides of the bottom, and the base (105) has the second roller groove (1062) on both sides of the bottom.

9. The camera module according to claim 7 or 8, characterized in that, The AF assembly (104) also includes: AF adsorption steel sheet (1044). The AF adsorption steel sheet (1044) and the AF electromagnetic structure (1041) are stacked between the bottom of the lens frame (1022) and the bottom of the base (105). The AF adsorption steel sheet (1044) is used to press the ball (1043) into the ball groove (1063).

10. An electronic device, characterized in that, Includes a housing and a camera module as described in any one of claims 1 to 9.

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