Camera module and electronic device

Abstract

The present application discloses a camera module and an electronic device including the camera module. The camera module includes a lens assembly and an image stabilization assembly. The lens assembly includes a rigid-flexible printed circuit board and a lens. The rigid-flexible printed circuit board includes a rigid substrate portion and a flexible substrate portion extending from the rigid substrate portion. The image stabilization assembly includes a movable part, a fixed part, and a connecting part. The movable part is fixed to the lens assembly, the fixed part is connected to the movable part using the connecting part, and the movable part is configured to rotate relative to the fixed part using the connecting part. The Z-axis coordinate of the rotation center of the movable part is close to or equal to the Z-axis coordinate of the rigid substrate portion, and the Z-axis direction is the optical axis direction of the lens. In the image stabilization process of the camera module provided herein, the reaction force generated by the rigid-flexible printed circuit board is small, making it easier to improve the image stabilization performance of the camera module.

Description

[Technical field]

[0001] The present application relates to the field of camera technology, and in particular to camera modules and electronic devices. [Background technology]

[0002] As users have increasingly higher shooting requirements for electronic devices, the requirements for the image stabilization performance of camera modules are also becoming more stringent. Currently, camera modules include a lens assembly and a stabilization pan / tilt / zoom. The lens assembly is attached to the stabilization pan / tilt / zoom, and the stabilization pan / tilt / zoom rotates the lens assembly to compensate for the vibration of the camera module, thereby realizing optical image stabilization.

[0003] However, one end of the circuit board based on the lens assembly is fixed to another component in the electronic device, so in the process of rotating the lens assembly by the anti-shake pan / tilt / zoom, the circuit board will be deformed and tilted, and the reaction force generated by the circuit board will hinder the rotational motion of the lens assembly, thus affecting the anti-shake performance of the anti-shake pan / tilt / zoom. Summary of the Invention

[0004] The present application provides a camera module and an electronic device, in which a reaction force generated by a rigid flexible printed circuit board during image stabilization of the camera module is small, thereby making it easy to improve image stabilization performance of the camera module.

[0005] According to a first aspect, the present application provides a camera module, the camera module including a lens assembly and an image stabilization assembly, the image stabilization assembly being configured to rotate the lens assembly to compensate for vibration of the camera module during a photographing process of an electronic device, thereby achieving image stabilization.

[0006] The lens assembly includes a rigid flexible printed circuit board (RFPCB) and a lens. The rigid flexible printed circuit board is a circuit board having the characteristics of both a rigid printed circuit board (PCB) and a flexible printed circuit board (RFPCB). Those skilled in the art can design the rigid flexible printed circuit board based on actual requirements. The specific structure and forming process of the rigid flexible printed circuit board are not limited in the present application. For example, the rigid flexible printed circuit board includes a rigid board part and a flexible board part drawn out from the rigid board part. The flexible board part is drawn out from the rigid board part to the outside of the image stabilization assembly and is configured to be electrically connected to another component in an electronic device, for example, an image processor, in order to transfer a signal of the lens assembly to the image processor.

[0007] In this embodiment of the present application, the flexible substrate piece can be bent and deformed so that the flexible substrate piece is fixed in a required position by the bending deformation, which facilitates the placement of other components in the electronic device.

[0008] The lens assembly further includes an image sensor. The image sensor is fixed to the rigid substrate portion and electrically connected to the rigid substrate portion. After passing through the lens, the external light is incident on the light-sensitive surface of the image sensor and forms an image on the image sensor. The image sensor is electrically connected to the rigid-flexible printed circuit board, whereby an electrical signal formed by the image sensor is transmitted to another component using the rigid-flexible printed circuit board.

[0009] In this embodiment of the present application, in the process of rotating the lens assembly by the image stabilization assembly, the lens and the image sensor rotate together, that is, the positions of the lens and the image sensor remain unchanged, and the position of the image projected by the lens onto the image sensor is fixed, so that the imaging requirements can be met by a small photosensitive surface provided on the image sensor, thereby reducing the volume of the image sensor.

[0010] In an optional embodiment, the lens assembly further includes a focusing assembly, the focusing assembly configured to perform auto-focusing of the camera module. For example, the lens includes a base, the base is fixed to the rigid substrate portion. The base is a hollow structure with openings at both ends. The base is the outermost structure of the lens assembly. A movable part is fixed around the base.

[0011] The lens further includes a lens group and a lens tube. The focusing assembly is fixed inside the base, the lens assembly is mounted inside the lens tube, and the lens tube and the lens assembly are mounted inside the focusing assembly. The focusing assembly is configured to move the lens tube and the lens assembly along an optical axis direction of the lens assembly to change an image distance to obtain a clear image and realize auto-focusing of the camera module.

[0012] In this embodiment of the present application, the camera module uses a focusing assembly to move the lens tube and lens group to perform focusing, and uses an image stabilization assembly to rotate the lens to achieve image stabilization. In other words, the focusing function and image stabilization function in the camera module are driven by different structures, which helps to achieve wide-angle image stabilization of the camera module.

[0013] Those skilled in the art can design the focusing assembly based on actual requirements. The specific driving method, structure, etc. of the focusing assembly are not limited in this application. In some other embodiments, the lens assembly may alternatively not have a focusing assembly, which is not limited in this application.

[0014] In an optional embodiment, the image stabilization assembly includes a moving part, a fixed part, and a connecting part, where the moving part is fixed to the lens assembly, the fixed part is connected to the moving part using the connecting part, and the moving part is configured to rotate relative to the fixed part using the connecting part.

[0015] For example, the movable part is fixed around the lens assembly, and the fixed part is surrounded around and spaced apart from the movable part. The connecting part connects the fixed part and the movable part. It will be understood that the fixed part is a hollow structure and the movable part is located inside the fixed part. The movable part is suspended relative to the fixed part and the connecting part supports the movable part.

[0016] In this embodiment of the present application, when the image stabilization assembly responds to the electrical signal, the movable part rotates relative to the fixed part. Since the movable part is fixed to the lens assembly, when the movable part rotates relative to the fixed part, the movable part can rotate the lens assembly together with the fixed part. That is, the image stabilization assembly is configured to respond to the electrical signal and rotate the lens assembly relative to the fixed part to compensate for the vibration of the camera module, thereby achieving image stabilization. To avoid the rotation of the movable part being affected by the interference between the fixed part and the movable part when the movable part rotates relative to the fixed part, the fixed part and the movable part are spaced apart, thereby ensuring the reliability of the image stabilization assembly.

[0017] It is understood that the movable part rotates relative to the fixed part using a connecting part, and the connecting part is connected to the position of the movable part and the fixed part, thereby determining the rotation center of the movable part relative to the fixed part. The movable part is fixed relative to the lens assembly, and the rotation center of the movable part is the same as the rotation center of the lens assembly. The larger the distance between the rotation center of the lens assembly and the rigid board part of the lens assembly, the larger the offset of the rigid board part will be when the rotation angle of the lens assembly meets the requirement, and furthermore, the larger deformation will be generated by the flexible board part pulled out from the rigid board part.

[0018] In an optional embodiment, the Z-axis coordinate of the rotation center of the movable part is close to or equal to the Z-axis coordinate of the rigid board part, and the Z-axis is the optical axis direction of the lens. The rotation center of the movable part relative to the fixed part is determined based on the center of the connecting part. That is, the center of the connecting part is located at R.

[0019] In this embodiment of the present application, the distance between the rotation center of the movable part and the rigid substrate part is less than half the thickness of the base, i.e., the rotation center of the movable part is offset from the middle part of the base and close to the rigid substrate part, so that the distance between the rotation center of the movable part and the rigid substrate part is reduced, and when the rotation angle of the lens assembly meets the requirement, the offset of the edge of the rigid substrate part is reduced, thus reducing the deformation of the flexible substrate part pulled out from the edge of the rigid substrate part, thereby reducing the reaction force generated by the flexible substrate part, which facilitates the image stabilization of the image stabilization assembly.

[0020] In an optional embodiment, the Z-axis distance between the center of rotation of the movable part and the rigid substrate portion is a first distance, and the first distance is less than half the shoulder height of the lens. The shoulder height of the lens is the Z-axis thickness of the base. It will be understood that the side of the rigid substrate portion and facing the base is used as the reference surface, and the side of the base and away from the rigid substrate portion is the shoulder portion of the lens, and the shoulder height of the lens is defined as the Z-axis thickness of the base.

[0021] In this embodiment of the present application, the distance between the rotation center of the movable part and the rigid board part is less than half the thickness of the base, i.e., the rotation center of the movable part is offset from the middle part of the base and close to the rigid board part, so that the distance between the rotation center of the movable part and the rigid board part is reduced, and when the rotation angle of the lens assembly meets the requirement, the offset of the edge of the rigid board part is reduced, thus reducing the deformation of the flexible printed circuit board pulled out from the edge of the rigid board part, thereby reducing the reaction force generated by the flexible board part, which makes it easier to stabilize the image stabilization of the image stabilization assembly.

[0022] In an optional embodiment, the connection part includes a movable base and an elastic connection piece, the movable base being related to the rigid substrate part and fixed to the side away from the lens, one end of the elastic connection piece being connected to the movable base and the other end being connected to the fixed part.

[0023] The movable part is connected to the fixed part using an elastic connecting piece, and the elastic connecting piece supports the movable part, so that the connection position of the elastic connecting piece and the movable base determines the rotation center of the movable part. The movable base is directly connected to the rigid board part, and reduces the distance between the side of the movable base and the rigid board part that is relative to the rigid board part and is remote from the rigid board part.

[0024] For example, one end of the elastic connecting piece is fixed to the side relative to the movable base and away from the rigid board portion, so that the rotation center of the movable part is located at the movable base, and therefore the rotation center of the movable part is close to the rigid board portion. In another embodiment, one end of the elastic connecting piece can also be fixed to the side edge of the movable base, so that the rotation center of the movable part is close to or equal to the rigid board portion. This is not limited in the present application.

[0025] In this embodiment of the present application, one end of the elastic connecting piece is connected to the movable base and the other end is connected to the fixed part, so that the rotation center of the movable part is located at the movable base, and the movable base is related to the rigid board part and fixed on the side away from the lens, so that the rotation center of the movable part is closer to the rigid board part, thereby reducing the distance between the rotation center of the movable part and the rigid board part.

[0026] In an optional embodiment, the elastic connecting piece includes a plurality of spring plates, each of which has two ends connected to the movable base and the fixed part, the plurality of spring plates are arranged symmetrically in the X-axis direction and symmetrically in the Y-axis direction, both of which are perpendicular to the Z-axis direction, the X-axis direction and the Y-axis direction intersect perpendicularly, and the intersection of the X-axis and the Y-axis is the rotation center of the movable part.

[0027] In this embodiment of the present application, the elastic connecting piece includes multiple spring plates arranged symmetrically in the X-axis direction and symmetrically in the Y-axis direction, thereby enabling the image stabilization assembly to tilt and rotate the lens assembly in the X-axis and Y-axis directions relative to the fixed part in a balanced and stable manner, effectively compensating for the X-axis and Y-axis offsets of the camera module.

[0028] In optional embodiments, the flexible substrate portion extends from the rigid substrate portion along the X-axis or Y-axis to the outside of the image stabilization assembly.

[0029] In this embodiment of the present application, the extension direction of the flexible substrate portion is the same as the rotation axis (X-axis or Y-axis direction) of the lens assembly relative to the fixed part, and the flexible substrate portion can be folded and bent, so that when the lens assembly rotates, the displacement of the flexible substrate portion relative to the fixed part is reduced, and the reaction force generated by the flexible substrate portion is reduced, thereby facilitating image stabilization of the camera module.

[0030] In an optional embodiment, the movable base includes a first base and a second base, the second base being fixed relative to the first base and away from the lens assembly, and one end of the elastic connecting piece is fixed to the second base, forming a gap between the elastic connecting piece and the first base.

[0031] For example, the second base protrudes along a side relative to the first base and facing away from the lens assembly, thereby forming a gap between the first base and an elastic connecting piece fixed to the second base. The first base is connected to the movable part, and therefore the movable base is directly connected to the movable part.

[0032] In this embodiment of the present application, the movable base includes a first base and a second base fixed to the first base on a side away from the lens assembly. The elastic connecting piece is fixed to the second base and forms a gap between the first base and the second base. The gap provides an escape space when the lens assembly rotates relative to the fixed part, and prevents the elastic connecting piece from interfering with the rotation of the lens assembly, thereby facilitating the wide-angle image stabilization of the camera module.

[0033] In an optional embodiment, the stationary part further includes a stationary baffle, the stationary baffle being related to the elastic connecting piece and located away from the movable base, for Fixed baffle projection Part is a movable base for Elastic connecting piece projection The at least part of the portion is covered.

[0034] In this embodiment of the present application, the fixed baffle is related to the elastic connecting piece and is located on the side away from the mobile base, this base for Fixed baffle projection Part is a movable base for Elastic connecting piece projection The fixed baffle covers at least a part of the elastic connecting piece, protects the elastic connecting piece, and prevents the elastic connecting piece from being deformed by an external force, thereby improving the quality of the camera module. For example, when the camera module is assembled into an electronic device, the fixed baffle can protect the elastic connecting piece to avoid damage to the elastic connecting piece during the assembly process.

[0035] In an optional embodiment, a gap is formed between the fixed baffle plate and the resilient connecting piece.

[0036] In this embodiment of the present application, a gap is formed between the fixed baffle plate and the elastic connecting piece, which provides an escape space when the movable part rotates relative to the fixed part to make the movable base rotate relative to the fixed part, preventing the fixed baffle plate from interfering with the movable part or the movable base, thereby improving the reliability of the camera module.

[0037] In an optional embodiment, the movable parts further include an inner frame and a first drive piece, the inner frame disposed about the lens assembly and the first drive piece fixed about the inner frame, the first drive piece being fixed using the inner frame, and by fixing the inner frame about the lens assembly, the first drive piece is fixed relative to the lens assembly.

[0038] The fixed part includes a bracket and a second driving piece, the bracket is disposed outside the movable part, and the second driving piece is fixed relative to the bracket. For example, the second driving piece can be embedded in the bracket to save space. The connecting piece is connected between the bracket and the inner frame, i.e., the fixed part is connected to the movable part using the connecting piece. A part of the connecting piece connected to the movable part is movable relative to a part of the connecting piece connected to the fixed part, whereby the movable part is movable relative to the fixed part.

[0039] In an optional embodiment, the second driving piece and the first driving piece are disposed opposite each other. When the image stabilization assembly responds to an electrical signal, a magnetic field effect is formed between the second driving piece and the first driving piece, causing the lens assembly to rotate relative to the fixed component. For example, the second driving piece and the first driving piece act using an energized coil and a magnetic body, where the energized coil generates an electromagnetic force in the magnetic field of the magnetic body, which causes the movable component and the lens assembly to rotate together relative to the fixed component, thereby achieving image stabilization.

[0040] In an optional embodiment, the camera module includes a driver chip configured to control the magnitude and duration of a current output to the energized coil to control the amount of rotation of the movable part relative to the fixed part to accurately compensate for vibrations of the camera module and achieve image stabilization.

[0041] In an optional embodiment, the first driving piece includes a magnetic body, and the second driving piece includes a coil. There are a plurality of magnetic bodies and coils, and there is a one-to-one correspondence between the magnetic bodies and the coils. For example, the inner frame is a conductive magnetic sheet that conducts the magnetic force of the magnetic body. The inner frame is approximately rectangular, the magnetic bodies are fixed to both sides of the inner frame, the bracket is approximately rectangular, the coils are disposed on both sides of the bracket, and the coils are disposed opposite the magnetic body.

[0042] In an optional embodiment, the fixed part further includes a connection plate. The connection plate is fixed to the bracket. The connection plate is electrically connected to the coil. The connection plate performs electrical signal transmission of the image stabilization assembly. For example, the connection plate is surrounded around the bracket, and the connection plate is a flexible rigid-flexible printed circuit board and is electrically connected to the coil of the second driving piece. The connection plate may be fixed to the bracket using a fastener or the like. The second driving piece is fixed to the connection plate to be fixed relative to the bracket.

[0043] The fixed part further includes a stiffening plate, which is fixed to the outside of the connecting plate to enhance the structural strength of the connecting plate. In some other embodiments, the connecting plate may alternatively be any other mechanical part provided with conductors and electrically connected to the second driving piece using the conductors. The specific structure of the connecting plate is not limited in this application.

[0044] In this embodiment, when the second driving piece includes a coil, the second driving piece is electrically connected to the connection plate, so that the coil is energized. After energization, the coil of the second driving piece generates an electromagnetic force between the coil and the first driving piece to push the first driving piece, so that the movable part and the lens assembly rotate together relative to the fixed part, thereby achieving image stabilization.

[0045] In this embodiment of the present application, the magnetic material of the first drive piece is fixed around the lens assembly and the coil of the second drive piece is located outside the first drive piece, so that the magnetic fields generated by magnetic materials or components in the lens assembly (e.g., a moving coil motor used for focusing) have no or little effect on the relative motion between the second drive piece and the first drive piece, thereby reducing interference caused by the lens assembly to the stabilization action of the image stabilization assembly.

[0046] In some other embodiments, the positions of the magnetic material and the coil may be swapped, for example, when a focusing assembly uses non-magnetic forces to drive the lens assembly to adjust the focus, or when the lens assembly includes moving parts entirely that do not contain magnetic material or that have weakly magnetic materials.

[0047] In this embodiment, the first driving piece includes a coil, and the second driving piece includes a magnetic piece. In this case, based on the small weight of the coil (smaller than the weight of the magnetic body in the above solution), the overall weight of the moving parts is small, so the load of the connecting parts is small, which helps to reduce the power consumption of the image stabilization assembly. In addition, the focusing assembly of the lens assembly can perform focusing in a non-magnetic driving manner to avoid the interference caused by the focusing assembly to the stabilization operation of the image stabilization assembly.

[0048] In optional embodiments, the magnetic body is single-sided bipolar magnetization, or two-single-sided unipolar magnetization. It is understood that each magnetic body is provided with two pairs of poles. For example, each magnetic body includes an upper magnet and a lower magnet. The upper magnet and the lower magnet correspond to the upper and lower parts of the coil, respectively. After the coil is energized, based on the opposite current directions in the upper and lower parts of the coil, when the magnetic poles of the upper and lower magnets are reversed, the direction of the electromagnetic force between the upper magnet and the upper part (of the coil) is the same as the direction of the force between the lower magnet and the lower part of the coil, so one side of the moving part experiences the same electromagnetic force.

[0049] In an optional embodiment, the stationary part further comprises a position detector configured to detect the position of the movable part relative to the stationary part, for example the position detector using changes in a magnetic field to detect the position.

[0050] In this embodiment, the movable part is provided with a magnetic body and the position detector is fixed to the fixed part. When the movable part rotates relative to the fixed part, the magnetic field generated by the magnetic body of the movable part changes, so that the position detector of the fixed part detects a different magnetic field, thereby determining the position of the movable part relative to the fixed part. That is, the position of the position detector relative to the magnetic body may change.

[0051] In this embodiment, the position detector detects the position of the movable part relative to the fixed part to determine the amount and angle of rotation of the lens assembly to determine the displacement of the camera module's image stabilization. After the movable part and the lens assembly rotate to the target position, the controller controls the first driving piece or the second driving piece to form a closed loop system and feeds back the amount and angle of rotation of the lens assembly relative to the fixed part.

[0052] In this embodiment, before the camera module takes a picture, the camera module can also first correct the position of the movable part relative to the fixed part according to the position detected by the position detector and related to the movable part relative to the fixed part to avoid the lens assembly and the movable part being out of position relative to the fixed part, because the lens assembly and the movable part move relative to the fixed part due to gravity, so that the position of the lens assembly relative to the fixed part is constant when the camera module takes a picture. That is, in this embodiment of the present application, the camera module does not have the problem of attitude difference.

[0053] In one embodiment, the position detector uses a sensing, driving and control integrated chip (all-in-one).

[0054] In this embodiment, the position detector and the coil use an integrated chip, and the number of pins of the coil and the position detector is reduced by sharing the power supply and communication. Those skilled in the art can design the position detector based on the actual requirements. The specific driving method of the position detector, the method of electrically connecting the position detector to the coil, etc. are not limited in this application.

[0055] In an optional embodiment, the elastic connection piece is made of a conductive material. The elastic connection piece is electrically connected to the rigid substrate part and the fixed part. For example, one end of the elastic connection piece is electrically connected to the rigid substrate part, and the other end is electrically connected to the connection plate to realize the electrical connection between the connection plate and the rigid substrate part. The electrical signal of the image stabilization assembly is concentrated in the coil of the second driving piece and the position detector, and the electrical signals of the second driving piece and the position detector are integrated in the connection plate, so that the electrical signal of the image stabilization assembly can be transmitted to the outside of the camera module using the connection plate.

[0056] In this embodiment, the elastic connecting piece not only connects the movable part and the fixed part, but also realizes the electrical connection between the image stabilization assembly and the lens assembly, so that the electrical signals of the image stabilization assembly can be integrated into the lens assembly using the elastic connecting piece, thereby eliminating the need for a separate connector to extract the electrical signals of the image stabilization assembly outside the camera module, thereby reducing the number of connectors in the camera module and reducing the space occupied by the camera module.

[0057] In an optional embodiment, the bracket includes a first side wall and a second side wall disposed opposite each other, and one end of a part of the elastic connecting piece is fixed to a middle region of the first side wall and the other end is fixed to the movable base, and one end of another part of the elastic connecting piece is fixed to a middle region of the second side wall and the other end is fixed to the movable base.

[0058] The connecting plate includes two lead-out ends arranged opposite each other, the lead-out ends are configured to contact each spring plate to realize an electrical connection between the connecting plate and the elastic connecting piece, one lead-out end is connected to the elastic connecting piece fixed to the first side wall, and the other lead-out end is connected to the elastic connecting piece fixed to the second side wall.

[0059] In this embodiment, the elastic connecting pieces are fixed at intermediate positions of the first and second side walls arranged opposite the bracket, respectively, to reduce the distance between the symmetrically arranged spring plates, thereby centralizing the lead-out ends of the connecting plates electrically connected to each spring plate, thereby reducing the outlets of the lead-out ends of the connecting plates and facilitating the electrical connection between the elastic connecting pieces and the connecting plates.

[0060] In an optional embodiment, the bracket further includes a third side wall connected between the first side wall and the second side wall, the third side wall having an avoidance space, and the flexible substrate portion extends through the avoidance space to the outside of the image stabilization assembly.

[0061] In this embodiment, the avoidance space not only provides an extraction space for the flexible substrate portion pulled out to the outside of the camera module, but also provides a deformation space for the flexible substrate portion, thereby avoiding interference between the flexible substrate portion and the bracket during the image stabilization process of the camera module, thereby affecting the rotation of the lens assembly.

[0062] In an optional embodiment, the elastic connecting piece includes a spring plate and an extension piece, one end of the spring plate is fixed to the movable base and the other end is fixed to the fixed part. The extension piece extends from the end of the spring plate fixed to the movable base to the rigid board part and is electrically connected to the rigid board part. The elastic connecting piece is made of a conductive material and realizes the electrical connection between the connecting plate of the fixed part and the rigid board part.

[0063] In this embodiment, the spring plate supports the movable part and the lens assembly. During the image stabilization process of the camera module, the movable part rotates relative to the fixed part, and the spring plate is deformed. Since both ends of the extension piece are fixedly connected to the movable part, the extension piece does not deform during the image stabilization process of the camera module, thereby ensuring the stability of the electrical connection between the elastic connection piece and the rigid board part, and improving the reliability of the camera module.

[0064] In an optional embodiment, the extension piece and the spring plate are integrally formed. In this embodiment, the extension piece and the spring plate are integrally formed to simplify the design of the elastic connecting piece.

[0065] In an optional embodiment, the fixed part further includes an outer cover that is attached to and disposed around the bracket, i.e., the outer cover surrounds the movable part, and is a housing for the camera module and prevents the camera module from damaging the image stabilization assembly and the lens assembly during the assembly process.

[0066] In an optional embodiment, the outer cover has a limiting portion that protrudes toward and is spaced from the lens assembly, the limiting portion configured to limit an angle that the lens assembly rotates relative to the fixed component.

[0067] In an optional embodiment, the connection components include a rigid connection piece and a flexible connection piece, the rigid connection piece being fixed around the lens assembly and at least a portion of the rigid connection piece being surrounded around the rigid substrate portion, one end of the flexible connection piece being fixed to a side edge related to the rigid connection piece and proximate to the rigid substrate portion, and the other end being fixed to the fixing component.

[0068] In this embodiment, at least a part of the rigid connecting piece is surrounded around the rigid board portion, and the flexible connecting piece is fixed to the side of the rigid connecting piece that is related to and close to the rigid board portion, so that the flexible connecting piece is closer to the rigid board portion in the Z-axis direction, thereby reducing the distance between the rotation center of the movable part and the rigid board portion. When the rotation angle of the lens assembly meets the requirement, the reaction force generated by the flexible board portion is reduced, which facilitates the image stabilization of the image stabilization assembly.

[0069] In this embodiment, the flexible connection piece is fixed to a side edge of the rigid connection piece, thereby avoiding an increase in the spacing between the flexible connection piece and the rigid substrate portion due to the thickness of the rigid connection piece when the flexible connection piece is relative to the rigid connection piece and fixed to the side away from the rigid connection piece, so that the Z-axis coordinate of the rotation center of the movable part can be equal to the Z-axis coordinate of the rigid substrate portion.

[0070] According to a second aspect, the present application further provides an electronic device, the electronic device comprising a housing and the above-mentioned camera module, the camera module being attached to the housing.

[0071] In this embodiment of the present application, a camera module in an electronic device includes a lens assembly and an image stabilization assembly for rotating the lens assembly. The distance between the rotation center of the lens assembly and the rigid substrate part of the rigid-flexible printed circuit board of the lens assembly is small. Therefore, when the rotation angle of the lens assembly meets the requirement, the offset of the rigid substrate part is reduced, and the deformation of the flexible substrate part pulled out from the rigid substrate part is reduced, thereby reducing the reaction force generated by the flexible substrate part, which facilitates the improvement of the image stabilization performance of the camera module in the electronic device. [Brief description of the drawings]

[0072] [Figure 1] 1 is a schematic diagram of a structure of an electronic device according to an embodiment of the present application; [Diagram 2] 2 is a schematic diagram of a structure of a camera module of the electronic device shown in FIG. 1 in some embodiments. [Diagram 3] 3 is a schematic diagram of a partial exploded structure of the camera module shown in FIG. 2. [Figure 4] 3 is a schematic cross-sectional view of the camera module shown in FIG. 2 taken along line AA. [Diagram 5] FIG. 3 is a bottom view of the camera module shown in FIG. 2 according to some embodiments. [Figure 6] FIG. 6 is a schematic diagram of a portion of the structure of the camera module shown in FIG. 5. [Figure 7] 7 is a schematic diagram of the structure of the camera module shown in FIG. 6 from another angle. [Figure 8] 6 is a schematic diagram of another part of the structure of the camera module shown in FIG. 5. [Figure 9] 3 is a bottom view of the camera module shown in FIG. 2 in some other embodiments. [Figure 10] 3 is a schematic diagram of a portion of the structure of the camera module shown in FIG. 2. [Figure 11]2 is a schematic diagram of the internal structure of the camera module shown in FIG. 1 in some other embodiments. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0073] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings.

[0074] FIG. 1 is a schematic diagram of a structure of an electronic device 100 according to an embodiment of the present application. An embodiment of the present application provides an electronic device 100. The electronic device 100 includes a housing 101 and a camera module 102. The camera module 102 is attached to the housing 101. The camera module 102 can enable the electronic device 100 to perform functions such as acquiring images or making instant video calls. The electronic device 100 can be a product such as a mobile phone, a tablet computer, a notebook computer, an in-vehicle device, a wearable device, a drone, etc. The wearable device can be a smart band, a smart watch, an augmented reality (AR) glasses, a virtual reality (VR) glasses, etc. In this embodiment of the present application, an example in which the electronic device 100 is a mobile phone is used for description.

[0075] In some embodiments, the electronic device 100 further includes an image processor 103. The image processor 103 and the camera module 102 are communicatively coupled, and the image processor 103 is configured to obtain image data from the camera module 102 and process the image data.

[0076] In some embodiments, the electronic device 100 further includes a rear cover 105 with a transparent area 104. The camera module 102 uses the transparent area 104 of the rear cover 105 to collect light outside the electronic device 100. It will be understood that the camera module 102 is used as a rear-facing camera module of the electronic device 100.

[0077] In some other embodiments, the electronic device 100 may further include a display module (not shown) configured to display a picture. The camera module 102 uses a transparent area of ​​the display module to collect light outside the electronic device 100, and the camera module 102 is used as a front-facing camera module of the electronic device 100. In other words, the camera module 102 may be used as a rear-facing camera module of the electronic device 100, or may be used as a front-facing camera module of the electronic device 100. This is not strictly limited in this embodiment of the present application.

[0078] 2 is a schematic diagram of the structure of the camera module 102 of the electronic device 100 shown in FIG. 1 in some embodiments. The camera module 102 includes a lens assembly 10 and an image stabilization assembly 20. A main part of the lens assembly 10 is disposed inside the image stabilization assembly 20, and a partial structure of the lens assembly 10 extends outside the image stabilization assembly 20. The image stabilization assembly 20 is configured to rotate the lens assembly 10 to compensate for the vibration of the camera module 102 during the photographing process of the electronic device 100, thereby achieving image stabilization.

[0079] Please refer to FIG. 3 and FIG. 4. FIG. 3 is a schematic diagram of a partial exploded structure of the camera module 102 shown in FIG. 2, and FIG. 4 is a schematic cross-sectional view along the line AA of the camera module 102 shown in FIG. 2. The lens assembly 10 includes a rigid flexible printed circuit board 11 (RFPCB), a lens 12, and an image sensor (not shown). The image sensor is electrically connected to the rigid flexible printed circuit board 11. The image sensor is a device that converts an optical image into an electrical signal. The image sensor may be a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS). This is not limited in the present application. After passing through the lens 12, the external light is incident on the photosensitive surface of the image sensor and forms an image on the image sensor. The image sensor is electrically connected to the rigid flexible printed circuit board 11, so that the electrical signal formed by the image sensor is transmitted to other components using the rigid flexible printed circuit board 11.

[0080] The rigid-flexible printed circuit board 11 is a circuit board having characteristics of both a rigid printed circuit board (PCB) and a flexible printed circuit board (FPC). For example, the rigid-flexible printed circuit board 11 includes a rigid board portion 111 and a flexible board portion 112 extending from the rigid board portion 111. The flexible board portion 112 is extended from the rigid board portion 111 to the outside of the image stabilization assembly 20 and is electrically connected to another component in the electronic device 100, for example, an image processor, and configured to transfer a signal of the lens assembly 10 to the image processor. For example, the rigid board portion 111 may include a reinforcing structure, for example, a reinforcing steel plate. This is not limited in the present application.

[0081] In some implementations, rigid substrate portion 111 may be a rigid printed circuit board (including a cable for electrically connecting flexible substrate portion 112). Various methods may be used to attach the rigid printed circuit board to the lens assembly. 10 1. Connect the rigid board portion 111 to the other components in the lens assembly. 10 1. At the same time, various components (e.g., an image sensor) are attached to the rigid substrate portion 111 and electrically connected to the flexible substrate portion 112 using a process, so that a signal obtained from the image sensor is transmitted to another component (e.g., an image processor) using the flexible substrate portion 112. In some other embodiments, the rigid substrate portion 111 can also arrange the rigid printed circuit board and components on the base substrate. The rigid printed circuit board uses a process, such as wire bonding, to realize an electrical signal connection with the image sensor, and uses the flexible substrate portion 112 to pull out the signal cable. Those skilled in the art can design the rigid-flexible printed circuit board 11 based on actual requirements. The specific structure and forming process of the rigid-flexible printed circuit board 11 are not limited in this application.

[0082] In this embodiment of the present application, the flexible substrate portion 112 can be bent and deformed, so that the flexible substrate portion 112 can be fixed in a required position by bending deformation, which facilitates the placement of other components in the electronic device 100. The lens 12 is fixed relative to the rigid substrate portion 111 to ensure the stability of the lens 12.

[0083] In some embodiments, the image stabilization assembly 20 includes a moving part 21, a fixed part 22, and a connecting part 23. The moving part 21 is fixed to the lens assembly 10. The fixed part 22 is connected to the moving part 21 using the connecting part 23. The moving part 21 is configured to rotate relative to the fixed part 22 using the connecting part 23. For example, the moving part 21 is fixed around the lens assembly 10, and the fixed part 22 is surrounded around the moving part 21 and spaced apart from the moving part 21. The connecting part 23 connects the fixed part 22 and the moving part 21. It is understood that the fixed part 22 is a hollow structure, and the moving part 21 is located inside the fixed part 22. The moving part 21 is suspended relative to the fixed part 22, and the connecting part 23 supports the moving part 21.

[0084] In this embodiment of the present application, the movable part 21 rotates relative to the fixed part 22 when the image stabilization assembly 20 responds to an electrical signal. Since the movable part 21 is fixed to the lens assembly 10, when the movable part 21 rotates relative to the fixed part 22, the movable part 21 can rotate the lens assembly 10 relative to the fixed part 22 together. That is, the image stabilization assembly 20 is configured to rotate the lens assembly 10 relative to the fixed part 22 in response to an electrical signal to compensate for the vibration of the camera module 102, thereby achieving image stabilization. The fixed part 22 and the movable part 21 are spaced apart to avoid interference between the fixed part 22 and the movable part 21 from affecting the rotation of the movable part 21 when the movable part 21 rotates relative to the fixed part 22, thereby ensuring the reliability of the image stabilization assembly 20.

[0085] It will be understood that in this embodiment of the present application, the fixed part 22 is connected to the movable part 21 using the connecting part 23. That is, the connecting part 23 is directly connected to the movable part 21. In some other embodiments, the connecting part 23 can also be connected to the lens assembly 10 and indirectly connected to the movable part 21. The particular connection method between the connecting part 23 and the movable part 21 is not limited to this embodiment of the present application.

[0086] In a conventional optical image stabilization system, the relative position between the lens and the image sensor changes continuously during the image stabilization process of the camera module, so the position where the lens projects the image onto the image sensor changes continuously. As a result, the image sensor requires a large photosensitive surface to meet the imaging requirements of the lens at various angles.

[0087] In this embodiment of the present application, in the process of the image stabilization assembly 20 rotating the lens assembly 10, the lens 12 and the image sensor rotate together, i.e., the positions of the lens 12 and the image sensor remain unchanged, and the position of the image projected by the lens 12 onto the image sensor is fixed, so that a small photosensitive surface provided on the image sensor can meet the imaging requirements, thereby reducing the volume of the image sensor.

[0088] In some embodiments, the groove is disposed on the side of the rigid substrate portion 111 that faces the lens 12. The image sensor is partially or completely housed within the groove, reducing the height of the lens assembly 10, which facilitates miniaturization of the camera module 102. In another embodiment, the image sensor may also be disposed on the surface of the rigid substrate portion 111, which is not a limitation of the present application.

[0089] In some embodiments, as shown in FIG. 4, the lens 12 includes a base 14, and the base 14 is fixed to the rigid substrate portion 111. The base 14 is a hollow structure with open ends. The base 14 is the outermost structure of the lens assembly 10. The movable part 21 is fixed around the base 14. The lens 12 further includes a focusing assembly, a lens tube, and a lens group. The focusing assembly is configured to realize auto-focusing of the camera module 102. For example, the focusing assembly is fixed inside the base 14, the lens assembly is attached inside the lens tube, and the lens tube and the lens assembly are attached inside the focusing assembly. The focusing assembly uses electromagnetic force to move the lens tube and the lens assembly along the optical axis direction of the lens assembly to change the image distance to obtain a clear image, and realize auto-focusing of the camera module 102.

[0090] In this embodiment of the present application, the camera module 102 uses the focusing assembly to move the lens tube and lens group to perform focusing, and the image stabilization assembly 20 to rotate the lens 12 to achieve image stabilization. In other words, the focusing function and the image stabilization function in the camera module 102 are driven by different structures. This helps to achieve wide-angle image stabilization of the camera module 102.

[0091] Those skilled in the art can design the focusing assembly based on actual requirements. The specific driving method, structure, etc. of the focusing assembly are not limited in this application. In some other embodiments, alternatively, the lens assembly 10 may not have a focusing assembly, which is not limited in this application.

[0092] Please further refer to Figures 3 and 4. The movable part 21 includes a first driving piece 210 and an inner frame 211. The inner frame 211 is disposed around the lens assembly 10. The first driving piece 210 is fixed around the inner frame 211. The first driving piece 210 is fixed using the inner frame 211, which is fixed around the lens assembly 10, thereby the first driving piece 210 is fixed relative to the lens assembly 10.

[0093] The fixed part 22 includes a second driving piece 220 and a bracket 222. The bracket 222 is located outside the movable part 21. The second driving piece 220 is fixed relative to the bracket 222. For example, the second driving piece 220 can be embedded in the bracket 222 to save space.

[0094] The connecting part 23 is connected between the bracket 222 and the inner frame 211, i.e., the fixed part 22 is connected to the movable part 21 using the connecting part 23. The movable part 21 can move relative to the fixed part 22, since the part of the connecting part 23 connected to the movable part 21 can move relative to the part of the connecting part 23 connected to the fixed part 22.

[0095] The second driving piece 220 and the first driving piece 210 are disposed opposite to each other. When the image stabilization assembly 20 responds to an electric signal, a magnetic field effect is formed between the second driving piece 220 and the first driving piece 210 to rotate the lens assembly 10 relative to the fixed part 22. The second driving piece 220 and the first driving piece 210 act using an energized coil and a magnetic body, and the energized coil generates an electromagnetic force in the magnetic field of the magnetic body, thereby rotating the movable part 21 and the lens assembly 10 together relative to the fixed part 22 to realize image stabilization. For example, the camera module 102 includes a driver chip. The driver chip is configured to control the magnitude and time of the current output to the energized coil, control the rotation of the movable part 21 relative to the fixed part 22, accurately compensate for the vibration of the camera module 102, and realize image stabilization.

[0096] In some embodiments, the first driving piece 210 includes a magnetic body 201, and the second driving piece 220 includes a coil 202. There are a plurality of magnetic bodies 201 and coils 202, and there is a one-to-one correspondence between the magnetic bodies 201 and the coils 202. For example, the inner frame 211 is a conductive magnetic sheet that transmits the magnetic force of the magnetic body 201. The inner frame 211 is approximately rectangular, and the magnetic bodies 201 are fixed to both sides of the inner frame 211. The bracket 222 is approximately rectangular, and the coils 202 are disposed on both sides of the bracket 222, and the coils 202 are disposed opposite the magnetic body 201.

[0097] In some embodiments, as shown in Fig. 3 and Fig. 4, the fixed part 22 further includes a connection plate 223. The connection plate 223 is fixed to the bracket 222. The connection plate 223 is electrically connected to the second driving piece 220, and the connection plate 223 realizes the transmission of an electrical signal of the image stabilization assembly 20. For example, the connection plate 223 is surrounded around the bracket 222, and the connection plate 223 is a flexible rigid-flexible printed circuit board, and is electrically connected to the coil 202 of the second driving piece 220. The connection plate 223 may be fixed to the bracket 222 using a fastener or the like. The second driving piece 220 is fixed to the connection plate 223 and fixed relative to the bracket 222.

[0098] The fixed part 22 further includes a reinforcing plate 224, which is fixed to the outside of the connecting plate 223 to enhance the structural strength of the connecting plate 223. In some other embodiments, the connecting plate 223 is alternatively some other mechanical part provided with a conductor and electrically connected to the second driving piece 220 using the conductor. The specific structure of the connecting plate 223 is not limited in this application.

[0099] In this embodiment, when the second driving piece 220 includes the coil 202, the second driving piece 220 is electrically connected to the connection plate 223, so that the coil 202 is energized. After energization, the coil 202 of the second driving piece 220 generates an electromagnetic force together with the first driving piece 210 to push the first driving piece 210, so that the movable part 21 and the lens assembly 10 rotate together relative to the fixed part 22, thereby realizing image stabilization.

[0100] In this embodiment of the present application, the magnetic material 201 in the first driving piece 210 is fixed around the lens assembly 10 and the coil 202 in the second driving piece 220 is positioned outside the first driving piece 210, so that the magnetic field generated by a magnetic material or magnetic component (e.g., a moving coil motor used for focusing) in the lens assembly 10 has no or little effect on the relative motion between the second driving piece 220 and the first driving piece 210, thereby reducing the interference caused by the lens assembly 10 to the stabilization operation of the image stabilization assembly 20.

[0101] In some embodiments, the magnetic body 201 is one-sided bipolar magnetization, or two one-sided monopolar magnetization. It is understood that each magnetic body 201 is provided with two pairs of poles. As shown in FIG. 4, each magnetic body 201 includes an upper magnet and a lower magnet. The upper magnet and the lower magnet correspond to the upper and lower parts of the coil 202, respectively. Based on the fact that the current directions of the upper and lower parts of the coil 202 are reversed after the coil 202 is energized, when the magnetic poles of the upper magnet and the lower magnet are reversed, the direction of the electromagnetic force between the upper magnet and the upper part (of the coil 202) is the same as the direction of the force between the lower magnet and the lower part (of the coil 202), so that one side of the movable part 21 receives the electromagnetic force in the same direction.

[0102] In this embodiment, when electromagnetic forces in opposite directions act on both sides of the movable part 21 arranged opposite to each other, the movable part 21 rotates relative to the fixed part 22. For example, in FIG. 4, the magnetic body 201 and the coil 202 on the left side both generate an upward electromagnetic force on the movable part 21, and the magnetic body 201 and the coil 202 on the right side both generate a downward electromagnetic force on the movable part 21, so that the movable part 21 rotates clockwise relative to the fixed part 22.

[0103] It will be understood that this embodiment describes an example where the coil 202 (second driving piece 220) belongs to the fixed part 22 and the magnetic body 201 (first driving piece 210) belongs to the movable part 21. In some other embodiments, the positions of the magnetic body 201 and the coil 202 may be swapped, for example, when the focusing assembly uses a non-magnetic force to drive the lens assembly 10 to adjust the focus, or when the lens assembly 10 includes an entire movable part 21 that does not contain magnetic material or has a weak magnetic material.

[0104] In this embodiment, the first driving piece 210 includes a coil 202, and the second driving piece 220 includes a magnetic piece. In this case, based on the small weight of the coil 202 (also smaller than the weight of the magnetic body 201 in the previous solution), the overall weight of the moving part 21 is small, so that the load of the connecting part 23 is small, which helps to reduce the power consumption of the image stabilization assembly 20. In addition, the focusing assembly of the lens assembly 10 can perform focusing in a non-magnetic driving manner to avoid interference caused by the focusing assembly to the stabilization operation of the image stabilization assembly 20.

[0105] It is understood that in this embodiment, the image stabilization assembly 20 uses a voice coil motor (VCM) to achieve image stabilization of the camera module 102. In some other embodiments, the image stabilization assembly 20 can alternatively use a shape memory alloy (SMA) motor to achieve image stabilization of the camera module 102. For example, the connection part 23 includes multiple shape memory alloys. Based on the fact that the shape memory alloys can be deformed to assume different forms under different thermal load conditions, the image stabilization assembly 20 controls the power-on state of the multiple shape memory alloys, so that the shape memory alloys contract and deform due to heat to rotate the lens assembly 10 relative to the fixed part 22, thereby achieving image stabilization of the camera module 102. The specific driving method and mounting structure of the image stabilization assembly 20 are not limited in this application.

[0106] 3 and 4, the fixed part 22 further includes a position detector 221. The position detector 221 is configured to detect the position of the movable part 21 relative to the fixed part 22. For example, the position detector 221 performs position detection using a change in a magnetic field.

[0107] In this embodiment, the movable part 21 is provided with a magnetic body 201, and the position detector 221 is fixed to the fixed part 22. When the movable part 21 rotates relative to the fixed part 22, the magnetic field generated by the magnetic body 201 of the movable part 21 changes, so that the position detector 221 of the fixed part 22 detects the different magnetic field, thereby determining the position of the movable part 21 relative to the fixed part 22. That is, the position of the position detector 221 relative to the magnetic body 201 may change.

[0108] In this embodiment, the position detector 221 detects the position of the movable part 21 relative to the fixed part 22, thereby determining the rotation amount and rotation angle of the lens assembly 10 to determine the image stabilization displacement of the camera module 102. After the movable part 21 and the lens assembly 10 rotate to the target position, the controller controls the first driving piece 210 or the second driving piece 220 to form a closed loop system and feeds back the rotation amount and rotation angle of the lens assembly 10 relative to the fixed part 22.

[0109] In this embodiment, before the camera module 102 takes a picture, the camera module 102 can also first correct the position of the movable part 21 relative to the fixed part 22 based on the position of the movable part 21 relative to the fixed part 22 detected by the position detector 221 to avoid the positions of the lens assembly 10 and the movable part 21 relative to the fixed part 22 being unfixed. This is because the lens assembly 10 and the movable part 21 move relative to the fixed part 22 due to gravity. Thereby, when the camera module 102 takes a picture, the position of the lens assembly 10 relative to the fixed part 22 is constant. That is, in this embodiment of the present application, the camera module 102 does not have the problem of attitude difference.

[0110] As shown in FIG. 4, in some embodiments, the position detector 221 is embedded inside the second driving piece 220. For example, the position detector 221 is fixed to a connection plate 223, the position detector 221 is located inside the second driving piece 220 fixed to the connection plate 223, and the position detector 221 is electrically connected to the connection plate 223. In this case, both the position detector 221 and the second driving piece 220 are electrically connected to an external component using the connection plate 223, which simplifies the circuit design of the fixed part 22 and enables spatial multiplexing of the position detector 221 and the second driving piece 220, which facilitates miniaturization of the camera module 102. In some other embodiments, the position detector 221 can also be located in another place. This is not limited in the present application.

[0111] In one embodiment, the position detector 221 uses a detection / driving / control integrated chip (all-in-one). In this embodiment, the position detector 221 and the coil 202 use integrated chips, and share power and communication, thereby reducing the number of pins of the coil 202 and the position detector 221. Those skilled in the art can design the position detector 221 based on actual requirements. The specific driving method of the position detector 221, the method of electrically connecting the position detector 221 to the coil 202, etc. are not limited in this application.

[0112] 2 to 4. In an embodiment, the fixed part 22 further includes an outer cover 225, which is attached to and disposed around the bracket 222. That is, the outer cover 225 is surrounded around the movable part 21. The outer cover 225 is a housing for the camera module 102, and prevents the camera module 102 from damaging the image stabilization assembly 20 and the lens assembly 10 during the assembly process.

[0113] 2, the outer cover 225 has a limiting portion 2250. The limiting portion 2250 protrudes toward the lens assembly 10 and is spaced apart from the lens assembly 10. The limiting portion 2250 is configured to limit an angle at which the lens assembly 10 rotates relative to the fixed component 22.

[0114] Please further refer to Figures 2 and 3. The flexible substrate portion 112 is drawn out from the rigid substrate portion 111 to the outside of the image stabilization assembly 20. The flexible substrate portion 112 is configured to be electrically connected to another component in the electronic device 100 to transmit an electrical signal of the camera module 102 to the other component. Based on one end of the flexible substrate portion 112 being fixedly connected to the rigid substrate portion 111 and the other end being fixedly connected to a component in the electronic device 100, it can be understood that in the process of the image stabilization assembly 20 rotating the lens assembly 10 relative to the fixed part 22, the rotated lens 12 and the rigid substrate portion 111 drive the flexible substrate portion 112, thereby causing the flexible substrate portion 112 to deform. In this case, the flexible substrate portion 112 generates a reaction force on the rigid substrate portion 111, so that the image stabilization assembly 20 interferes to rotate the lens assembly 10 relative to the fixed part 22.

[0115] In this embodiment, the movable part 21 rotates relative to the fixed part 22 using the connecting part 23, and the connecting part 23 is connected to the position of the movable part 21 and the fixed part 22, so that the rotation center of the movable part 21 relative to the fixed part 22 is determined. The movable part 21 is fixed relative to the lens assembly 10, and the rotation center of the movable part 21 is the same as the rotation center of the lens assembly 10. The larger the distance between the rotation center of the lens assembly 10 and the rigid substrate portion 111 of the lens assembly 10, the larger the offset of the rigid substrate portion 111 is when the rotation angle of the lens assembly 10 meets the requirement, and further indicates the larger deformation caused by the flexible substrate portion 112 pulled out from the rigid substrate portion 111.

[0116] In some possible implementations, in a pan / tilt / zoom camera module, an upper spring plate and a lower spring plate are disposed at both ends of a base of a lens assembly, respectively, and a movable part rotates relative to a fixed part using the upper spring plate and the lower spring plate. In this case, a rotation center of the movable part rotating relative to the fixed part is located in an intermediate region between the upper spring plate and the lower spring plate, i.e., in the center of the base. Since the distance between the rotation center of the lens assembly and the rigid board part is large, the rotation amplitude of the rigid board part is large during the rotation process of the lens assembly, and the deformation of the flexible board part is large. As a result, the flexible board part generates a large reaction force, which affects the image stabilization of the camera module.

[0117] Please further refer to FIG. 4. The distance in the Z-axis direction between the rotation center R of the movable part 21 of the camera module 102 and the rigid substrate portion 111 is defined as a first distance D1, and the Z-axis direction is defined as the optical axis direction of the lens 12. The first distance D1 is less than half of the shoulder height D2 of the lens 12. The shoulder height D2 of the lens 12 is the thickness of the base 14 in the Z-axis direction. It will be understood that the side of the rigid substrate portion 111 facing the base 14 is defined as the reference plane, and the side of the base 14 facing away from the rigid substrate portion 111 is defined as the "shoulder" part of the lens 12, and the shoulder height D2 of the lens 12 is defined as the thickness of the base 14 in the Z-axis direction.

[0118] The first distance D1 is less than half the shoulder height D2 of the lens 12, i.e., the distance between the rotation center R of the movable part 21 and the rigid substrate portion 111 is less than half the thickness of the lens 12. The rotation center R of the movable part 21 relative to the fixed part 22 is determined based on the center of the connecting part 23, i.e., the center of the connecting part 23 is located at R.

[0119] In this embodiment, the distance between the rotation center R of the movable part 21 and the rigid substrate portion 111 is less than half the thickness of the base 14, i.e., the rotation center R of the movable part 21 deviates from the middle part of the base 14 and is close to the rigid substrate portion 111. This reduces the distance between the rotation center R of the movable part 21 and the rigid substrate portion 111, and when the rotation angle of the lens assembly 10 meets the requirement, the offset of the edge of the rigid substrate portion 111 is reduced, thus reducing the deformation of the flexible substrate portion 112 pulled out from the edge of the rigid substrate portion 111, so that the reaction force generated by the flexible substrate portion 112 is smaller, which facilitates the image stabilization of the image stabilization assembly 20.

[0120] In some embodiments, the coordinate in the Z-axis direction of the rotation center R of the movable part 21 is close to or equal to the coordinate in the Z-axis direction of the rigid board portion 111, and the Z-axis direction is the optical axis direction of the lens. The fact that the rotation center R of the movable part 21 is located above or below the rigid board portion 111 means that the coordinate in the Z-axis direction of the rotation center R of the movable part 21 is close to the coordinate in the Z-axis direction of the rigid board portion 111. For example, when the coordinate in the Z-axis direction of the rigid board portion 111 is 0, the coordinate of the rotation center R of the movable part 21 being 0.1 or -0.1 indicates that the rotation center R of the movable part 21 is close to the rigid board portion 111.

[0121] In this embodiment, the coordinate in the Z-axis direction of the rotation center R of the movable part 21 is close to or equal to the coordinate in the Z-axis direction of the rigid substrate portion 111. That is, the distance between the rotation center R of the movable part 21 and the rigid substrate portion 111 is small. When the rotation angle of the lens assembly 10 meets the requirements, the offset of the edge portion of the rigid substrate portion 111 is small, and further, the deformation of the flexible substrate portion 112 pulled out from the edge portion of the rigid substrate portion 111 is small, so that the reaction force generated by the flexible substrate portion 112 is small, which makes it easier to stabilize the image stabilization assembly 20.

[0122] 3 and 4, in some embodiments, the connection part 23 includes a movable base 231 and an elastic connection piece 232. The movable base 231 is related to the rigid board part 111 and is fixed to the side away from the lens 12. That is, the movable base 231 is fixed to the bottom surface of the lens assembly 10. One end of the elastic connection piece 232 is connected to the movable base 231, and the other end is connected to the fixed part 22. It can be understood that the movable part 21 is connected to the fixed part 22 using the elastic connection piece 232, and the elastic connection piece 232 supports the movable part 21, so that the connection position between the elastic connection piece 232 and the movable base 231 determines the rotation center R of the movable part 21.

[0123] The movable base 231 is directly connected to the rigid board part 111, and reduces the distance between the rigid board part 111 and the side of the movable base 231 and away from the rigid board part 111. One end of the elastic connecting piece 232 is fixed to the side of the movable base 231 and away from the rigid board part 111, so that the rotation center R of the movable part 21 is located at the movable base 231, and therefore the rotation center R of the movable part 21 is close to the rigid board part 111. In another embodiment, one end of the elastic connecting piece 232 can also be fixed to the side edge of the movable base 231, so that the rotation center R of the movable part 21 is close to or equal to the rigid board part 111. This is not limited in the present application.

[0124] In this embodiment of the present application, one end of the elastic connecting piece 232 is connected to the movable base 231, and the other end is connected to the fixed part 22, so that the rotation center R of the movable part 21 is located at the movable base 231. And the movable base 231 is related to the rigid board part 111 and is fixed on the side away from the lens 12, so that the rotation center R of the movable part 21 is closer to the rigid board part 111, and thus the distance between the rotation center R of the movable part 21 and the rigid board part 111 is reduced.

[0125] 4, in this embodiment, an example is described in which the elastic connecting piece 232 is fixed at the middle region of the movable base 231. In another embodiment, the elastic connecting piece 232 may be fixed at another region of the movable base 231, for example, at a diagonal region of the movable base 231. This is not limited in the present application.

[0126] Please further refer to Figures 3 and 4. The movable base 231 includes a first base 2311 and a second base 2312. The first base 2311 is relative to the rigid board portion 111 and is located on a side away from the lens 12. The second base 2312 is relative to the first base 2311 and is fixed on a side away from the lens assembly 10. One end of the elastic connecting piece 232 is fixed to the second base 2312, and a gap is formed between the elastic connecting piece 232 and the first base 2311. For example, the second base 2312 protrudes along a side relative to the first base 2311 and away from the lens assembly 10, thereby forming a gap between the elastic connecting piece 232 fixed to the second base 2312 and the first base 2311. The first base 2311 is connected to the movable part 21, and thereby the movable base 231 is directly connected to the movable part 21.

[0127] In this embodiment of the present application, the movable base 231 includes a first base 2311 and a second base 2312 fixed to the first base 2311 on the side away from the lens assembly 10. The elastic connecting piece 232 is fixed to the second base 2312 and forms a gap between the first base 2311 and the second base 2312. The gap provides an escape space when the lens assembly 10 rotates relative to the fixed part 22, and prevents the elastic connecting piece 232 from interfering with the rotation of the lens assembly 10, thereby facilitating the wide-angle image stabilization of the camera module 102.

[0128] In one embodiment, the first base 2311 is fixedly connected to the inner frame 211, thereby connecting the movable base 231 to the movable part 21. In this embodiment, the first base 2311 is assembled to the inner frame 211 surrounded around the lens assembly 10, thereby enhancing the structural strength of the inner frame 211, preventing the inner frame 211 from being easily deformed by external forces, and improving the reliability of the camera module 102.

[0129] In this embodiment, the rigid board portion 111 for At the joint between the elastic connecting piece 232 and the second base 2312 projection The portion is located in the middle region of the rigid board portion 111, and correspondingly, for The second base 2312 projection A portion is located in the middle region of the rigid board portion 111 , which separates the elastic connecting piece 232 and the first base 2311 .

[0130] In another embodiment of the present application, the rigid board portion 111 for At the joint between the elastic connecting piece 232 and the second base 2312 projectionThe elastic connecting pieces 232 may be located in other regions of the rigid board portion 111, for example, at the four corners of the rigid board portion 111. In this case, the shape of the second base 2312 changes accordingly. It will be understood that the shape of the second base 2312 may change according to the change in the position where the elastic connecting pieces 232 are fixed to the movable base 231. In other words, the specific position where the elastic connecting pieces 232 are fixed to the movable base 231 is not limited in the present application, and the specific form of the movable base 231 is not limited.

[0131] In one embodiment, the first base 2311 is integrated into the reinforcing structure of the rigid substrate portion 111 , thereby further reducing the distance between the rotation center R of the movable part 21 and the rigid substrate portion 111 .

[0132] It can be understood that, when the first base 2311 meets structural rigidity and the second base 2312 provides a sufficient avoidance space for the rotation of the lens assembly 10, the thinner thickness of the first base 2311 and the second base 2312 along the Z-axis direction indicates a smaller distance between the rotation center R of the movable part 21 and the rigid board portion 111, thereby reducing the reaction force generated by the flexible board portion 112 in the image stabilization process of the camera module 102. Therefore, it is more conducive to improving the image stabilization of the image stabilization assembly 20. When the elastic connecting piece 232 is fixed to the side edge of the movable base 231, i.e., when the elastic connecting piece 232 is located around the movable base 231, in this case, the movable base 231 does not need to be provided with the second base 2312 to provide an avoidance space.

[0133] In some embodiments, the first base 2311 and the second base 2312 may be integrally formed. In another embodiment, the first base 2311 and the second base 2312 may be fixedly connected in a snap-fit ​​manner, which is not a limitation of the present application.

[0134] Please further refer to Figures 4 and 5. Figure 5 is a bottom view of the camera module 102 shown in Figure 2 in some embodiments. In one embodiment, the fixed part 22 further includes a fixed baffle 226. The fixed baffle 226 is related to the elastic connecting piece 232 and is located on the side away from the movable base 231. The fixed baffle 226 is fixed to the bracket 222 and is connected to the movable base 231. for Fixed baffle 226 projection Part is movable base 231 for The elastic connecting piece 232 projection The at least part of the portion is covered.

[0135] In this embodiment, the fixed baffle 226 is relative to the elastic connecting piece 232 and is located away from the movable base 231; this base for Fixed baffle 226 projection The part is a movable base 231 for The elastic connecting piece 232 projection The fixed baffle 226 covers at least a part of the elastic connecting piece 232 to protect the elastic connecting piece 232 and prevent the elastic connecting piece 232 from being deformed by an external force, thereby improving the quality of the camera module 102. For example, when the camera module 102 is assembled into the electronic device 100, the fixed baffle 226 can protect the elastic connecting piece 232 to avoid damage to the elastic connecting piece 232 during the assembly process.

[0136] As shown in FIG. 4, in one embodiment, a gap is formed between the fixed baffle 226 and the resilient connecting piece 232 .

[0137] In this embodiment of the present application, a gap is formed between the fixed baffle 226 and the elastic connecting piece 232. This gap provides an escape space when the movable part 21 rotates relative to the fixed part 22 to rotate the movable base 231 relative to the fixed part 22, and prevents the fixed baffle 226 from interfering with the movable part 21 or the movable base 231, thereby improving the reliability of the camera module 102.

[0138] 6 is a schematic diagram of a part of the structure of the camera module 102 shown in FIG. The elastic connecting piece 232 includes a spring plate group 2301. One end of the spring plate group 2301 is fixed to the movable base 231, and the other end is fixed to the fixed part 22. For example, the spring plate group 2301 includes a first spring plate group 2321 and a second spring plate group 2322 that are spaced apart. The first spring plate group 2321 and the second spring plate group 2322 are arranged symmetrically in the X-axis direction. The X-axis direction is perpendicular to the Z-axis direction.

[0139] In this embodiment, the elastic connecting piece 232 includes a first spring plate group 2321 and a second spring plate group 2322 arranged symmetrically along the X-axis direction, thereby enabling the image stabilization assembly 20 to stably tilt the lens assembly 10 left and right along the X-axis direction in a balanced manner relative to the fixed part 22, thereby effectively compensating for the offset of the lens assembly 10 in the X-axis direction.

[0140] The first spring plate group 2321 includes spring plates 2320 arranged symmetrically in the Y-axis direction. The Y-axis direction is perpendicular to the Z-axis direction. The Y-axis direction is perpendicular to the X-axis direction and intersects with the X-axis direction. It can be understood that the elastic connecting piece 232 includes a plurality of spring plates 2320, and both ends of each spring plate 2320 are connected to the movable base 231 and the fixed part 22, respectively. In order to avoid the plurality of spring plates 2320 interfering with each other and affecting the image stabilization of the camera module 102, the plurality of spring plates 2320 are arranged at intervals. The plurality of spring plates 2320 are arranged symmetrically in the X-axis direction and symmetrically in the Y-axis direction.

[0141] 6, for example, there are four spring plates 2320. Both the first spring plate group 2321 and the second spring plate group 2322 include two spring plates 2320 arranged symmetrically perpendicular to the X-axis direction, and the two spring plates 2320 are respectively connected to the fixed part 22 and the movable part 21. In other embodiments, there may be other quantities of spring plates 2320, and the quantity of the spring plates 2320 is not limited in the present application.

[0142] In this embodiment, the elastic connecting piece 232 includes a plurality of spring plates 2320 arranged symmetrically in the X-axis direction and symmetrically in the Y-axis direction, thereby enabling the image stabilization assembly 20 to stably tilt the lens assembly 10 in the X-axis direction and the Y-axis direction relative to the fixed part 22 in a balanced manner, thereby effectively compensating for the offset of the camera module 102 in the X-axis direction and the Y-axis direction.

[0143] The intersection of the Y-axis and the X-axis is the rotation center R of the movable part 21. The rotation center R of the movable part 21 is located in the Z-axis direction, and is located in the middle region of the movable base 231.

[0144] Based on the multiple spring plates 2320 being symmetrically arranged along the X-axis direction and symmetrically arranged along the Y-axis direction, it can be understood that the symmetric center of the multiple spring plates 2320 is the intersection between the Y-axis and the X-axis. In this embodiment, the symmetric center of the multiple spring plates 2320 is the rotation center R of the movable part 21, and the rotation center R is located in the middle area of ​​the movable base 231, so that the driving force arm that cooperates with the second driving piece 220 and the first driving piece 210 to rotate the lens assembly 10 is maximized, and thus the camera module 102 can rotate at a large angle to improve the image stabilization performance.

[0145] In one embodiment, the spring plate 2320 includes a first end, a deformation portion, and a second end. The first end is fixed to the bracket 222. The second end is fixed to the movable base 231. The deformation portion is connected between the first end and the second end, and the deformation portion is curved.

[0146] In this embodiment, the spring plate 2320 is provided with a bending deformation portion, which allows the spring plate 2320 to deform in different directions, thereby facilitating the realization of wide-angle image stabilization of the camera module 102. The curved shape of the spring plate 2320 in FIG. 6 is merely an example. In other embodiments, the spring plate 2320 may have other shapes, which is not limited in this application.

[0147] As shown in Fig. 6, in one embodiment, the flexible substrate portion 112 extends from the rigid substrate portion 111 to the outside of the image stabilization assembly 20 along the X-axis direction or the Y-axis direction. For example, as shown in Fig. 6, the flexible substrate portion 112 extends in the X-direction. In another embodiment, the flexible substrate portion 112 can also extend in the Y-direction. This is not limited in the present application.

[0148] In this embodiment of the present application, the extension direction of the flexible substrate portion 112 is the same as the rotation axis (X-axis direction or Y-axis direction) of the lens assembly 10 relative to the fixed part 22, and the flexible substrate portion 112 can be bent, so that when the lens assembly 10 rotates, the displacement of the flexible substrate portion 112 relative to the fixed part 22 is reduced, and the reaction force generated by the flex substrate portion 112 is reduced, thereby facilitating image stabilization of the camera module 102.

[0149] Please refer to Figures 6 and 7. Figure 7 is a schematic view of the structure of the camera module 102 shown in Figure 6 from another angle. In one embodiment, the elastic connection piece 232 is made of a conductive material. The elastic connection piece 232 is electrically connected to the rigid board portion 111 and the fixed part 22. For example, one end of the elastic connection piece 232 is electrically connected to the rigid board portion 111, and the other end is electrically connected to the connection plate 223, so as to realize the electrical connection between the connection plate 223 and the rigid board portion 111. The electrical signal of the image stabilization assembly 20 is concentrated in the second driving piece 220 (coil 202) and the position detector 221, and the electrical signals of the second driving piece 220 and the position detector 221 are integrated in the connection plate 223, so that the electrical signal of the image stabilization assembly 20 can be transmitted to the outside of the camera module 102 using the connection plate 223.

[0150] In the prior art, a connector is used to transmit the electrical signal of the connection plate 223 to the outside of the camera module 102. However, in this embodiment, the elastic connection piece 232 realizes the electrical connection between the connection plate 223 and the rigid board portion 111, so that the electrical signal of the connection plate 223 is directly integrated into the rigid board portion 111 of the lens assembly 10, and the electrical signal of the connection plate 223 can finally be transmitted to the outside of the camera module 102 using the rigid board portion 111.

[0151] In this embodiment, the elastic connecting piece 232 not only connects the movable part 21 and the fixed part 22, but also realizes the electrical connection between the image stabilization assembly 20 and the lens assembly 10, so that the electrical signals of the image stabilization assembly 20 can be integrated into the lens assembly 10 using the elastic connecting piece 232, thereby avoiding the electrical signals of the image stabilization assembly 20 being pulled out to the outside of the camera module 102 by arranging a separate connector, reducing the number of connectors in the camera module 102, and reducing the space occupied by the camera module 102.

[0152] 6 and 7, in one embodiment, the elastic connection piece 232 further includes an extension piece 2302. The extension piece 2302 extends from one end of the spring plate 2320 fixed to the movable base 231 to the rigid board portion 111 and is electrically connected to the rigid board portion 111. For example, the extension piece 2302 includes a first extension piece 2323 and a second extension piece 2324 arranged at a distance from each other. The first extension piece 2323 extends from the first spring plate group 2321 to the rigid board portion 111. The second extension piece 2324 extends from the second spring plate group 2322 to the rigid board portion 111. The first extension piece 2323 and the second extension piece 2324 are fixed to the movable base 231, respectively.

[0153] It will be appreciated that the junction between the first extension piece 2323 and the first spring plate group 2321 and the junction between the second extension piece 2324 and the second spring plate group 2322 are respectively locations that connect the elastic connecting piece 232 to the movable base 231. Both ends of the first extension piece 2323 and both ends of the second extension piece 2324 (extension piece 2302) are fixedly connected to the movable part 21, as both ends of the first extension piece 2323 and both ends of the second extension piece 2324 are fixedly connected to the movable part 21.

[0154] In this embodiment, the spring plate 2320 supports the movable part 21 and the lens assembly 10, and the movable part 21 rotates relative to the fixed part 22 during the image stabilization process of the camera module 102, and the spring plate 2320 is deformed. However, since both ends of the extension piece 2302 are fixedly connected to the movable part 21, the extension piece 2302 does not deform during the image stabilization process of the camera module 102, thereby ensuring the stability of the electrical connection between the elastic connection piece 232 and the rigid board portion 111, and improving the reliability of the camera module 102.

[0155] In one embodiment, the extension piece 2302 and the spring plate 2320 are integrally formed. For example, the first extension piece 2323 and the first spring plate group 2321 are integrally formed, and the second extension piece 2324 and the second spring plate group 2322 are integrally formed. In this embodiment, the extension piece 2302 (the first extension piece 2323 and the second extension piece 2324) and the spring plate 2320 (the first spring plate group 2321 and the second spring plate group 2322) are integrally formed to simplify the design of the elastic connection piece 232. In another embodiment, the extension piece 2302 and the spring plate 2320 may be different components. This is not limited in the present application.

[0156] 6 and 7, in one embodiment, the first base 2311 is provided with an accommodation space 2313 penetrating the first base 2311. The extension piece 2302 passes through the accommodation space 2313 and is electrically connected to the rigid board portion 111. It can be understood that an interface electrically connected to the first extension piece 2323 and the second extension piece 2324 is disposed on the rigid board portion 111. The first extension piece 2323 and the second extension piece 2324 are electrically connected to the rigid board portion 111 via the interface.

[0157] In this embodiment, the extension portion 2302 passes through the accommodating space 2313 to connect the rigid substrate portion 111, so that the interfaces for electrical connection between the rigid substrate portion 111 and the elastic connecting piece 232 are concentrated in the same area of ​​the rigid substrate portion 111, thereby avoiding the scattered distribution of the interfaces for electrical connection between the rigid substrate portion 111 and the elastic connecting piece 232, and simplifying the design of the rigid substrate portion 111.

[0158] Please refer to Figures 6 and 8. Figure 8 is a schematic diagram of another part of the structure of the camera module 102 shown in Figure 5. The bracket 222 includes a first side wall 2221 and a second side wall 2222 arranged opposite to each other. One end of a part of the elastic connecting piece 232 is fixed to the middle region of the first side wall 2221, and the other end is fixed to the movable base 231. One end of the other part of the elastic connecting piece 232 is fixed to the middle region of the second side wall 2222, and the other end is fixed to the movable base 231.

[0159] The connecting plate 223 includes two drawer ends 2230 arranged opposite to each other. The drawer ends 2230 are configured to contact each spring plate 2320 to realize an electrical connection between the connecting plate 223 and the elastic connecting piece 232. One drawer end 2230 is connected to the elastic connecting piece 232 fixed to the first side wall 2221, and the other drawer end 2230 is connected to the elastic connecting piece 232 fixed to the second side wall 2222. For example, one drawer end 2230 is connected and fixed to the first spring plate group 2321, and one end of the first spring plate group 2321 is fixed to the middle region of the first side wall 2221. The other drawer end 2230 is connected to the second spring plate group 2322, and one end of the second spring plate group 2322 is fixed to the middle region of the second side wall 2222.

[0160] In this embodiment, the first spring plate group 2321 and the second spring plate group 2322 are respectively fixed at intermediate positions of the first side wall 2221 and the second side wall 2222 arranged opposite the bracket 222, thereby reducing the distance between the symmetrically arranged spring plates 2320 in the spring plate group 2301 (the first spring plate group 2321 and the second spring plate group 2322), thereby centralizing the lead-out ends 2230 of the connecting plate 223 electrically connected to each spring plate 2320, thereby reducing the exit of the lead-out ends 2230 in the connecting plate 223 and facilitating the electrical connection between the elastic connecting piece 232 and the connecting plate 223.

[0161] Please refer to FIG. 9. FIG. 9 is a bottom view of the camera module shown in FIG. 2 in some other embodiments. In some embodiments, one end of the first spring plate group 2321 can also be fixed to both ends arranged opposite the first side wall 2221, and one end of the second spring plate group 2322 can be fixed to both ends arranged opposite the second side wall 2222. That is, the elastic connecting piece 232 can also be fixed to the four corners of the bracket 222. It is understood that the specific position where the elastic connecting piece 232 is attached to the bracket 222 is not limited in the present application.

[0162] Please further refer to Fig. 10. Fig. 10 is a schematic diagram of a part of the structure of the camera module 102 shown in Fig. 2. In one embodiment, the bracket 222 further includes a third side wall 2223 connected between the first side wall 2221 and the second side wall 2222. The third side wall 2223 is provided with an avoidance space 2220. The flexible substrate portion 112 in the lens assembly 10 extends to the outside of the bracket 222 through the avoidance space 2220.

[0163] In this embodiment, the avoidance space 2220 not only provides a pull-out space for the flexible substrate portion 112 pulled out outside the camera module 102, but also provides a deformation space for the flexible substrate portion 112, thereby avoiding interference between the flexible substrate portion 112 and the bracket 222 during the image stabilization process of the camera module 102, thereby affecting the rotation of the lens assembly 10.

[0164] In some embodiments, the flexible substrate portion 112 is provided with a bend 130 along the extension direction of the flexible substrate portion 112. The bend 130 can change the length of the flexible substrate portion 112 in the extension direction of the flexible substrate portion 112. In some embodiments, the bend 130 is arched along the direction of the optical axis.

[0165] In this embodiment, the flexible substrate portion 112 has a bend 130 along the extension direction of the flexible substrate portion 112, so that when the flexible substrate portion 112 is pulled in the process of rotating the lens assembly 10 relative to the fixed part 22, the length of the flexible substrate portion 112 changes accordingly to provide a buffer amount for deformation of the flexible substrate portion 112, thereby further reducing the reaction force generated by the flexible substrate portion 112.

[0166] Please refer to FIG. 11. FIG. 11 is a schematic diagram of the internal structure of the camera module 102 shown in FIG. 1 in some other embodiments. This embodiment includes most of the technical features of the above-mentioned embodiment, and the contents of most of the technical solutions in the following embodiments that are the same as the above-mentioned embodiment will not be described again. For example, the camera module 102 includes a lens assembly 10 and an image stabilization assembly 20. The lens assembly 10 is disposed inside the image stabilization assembly 20. The lens assembly 10 includes a rigid board portion 111 and a lens 12. The image stabilization assembly 20 includes a movable part 21, a fixed part 22, and a connecting part 23 that connects the movable part 21 and the fixed part 22. The movable part 21 is configured to rotate relative to the fixed part 22 using the connecting part 23, and the coordinate of the rotation center R of the movable part 21 in the Z-axis direction is close to or equal to the coordinate of the rigid board portion 111 in the Z-axis direction.

[0167] In some embodiments, the connection component 23 includes a rigid connection piece 234 and a flexible connection piece 235. The rigid connection piece 234 is fixed around the lens assembly 10, and at least a part of the rigid connection piece 234 is surrounded around the rigid board portion 111. For example, the rigid connection piece 234 surrounds the bottom and side surfaces of the rigid board portion 111, thereby the rigid connection piece 234 is securely connected to the lens assembly 10 and improves the reliability of the camera module 102. The extension direction of the flexible connection piece 235 is perpendicular to the optical axis direction of the lens 12.

[0168] 11, in some embodiments, one end of the flexible connection piece 235 is fixed to the side edge related to the rigid connection piece 234 and close to the rigid board portion 111, and the other end is fixed to the fixed part 22. In another embodiment, the rigid connection piece 234 may also be fixed to the side of the rigid board portion 111. This is not limited in the present application.

[0169] In this embodiment, at least a part of the rigid connecting piece 234 is surrounded around the rigid board portion 111, and the flexible connecting piece 235 is fixed to the side related to the rigid connecting piece 234 and close to the rigid board portion 111, so that the flexible connecting piece 235 is closer to the rigid board portion 111 in the Z-axis direction, thereby reducing the distance between the rotation center R of the movable part 21 and the rigid board portion 111. When the rotation angle of the lens assembly 10 meets the requirement, the reaction force generated by the flexible board portion 112 is small, which makes it easier to stabilize the image stabilization assembly 20.

[0170] In this embodiment, the flexible connection piece 235 is fixed to a side edge of the rigid connection piece 234, such that when the flexible connection piece 235 is fixed to the side relative to the rigid connection piece 234 and away from the rigid substrate portion 111, the thickness of the rigid connection piece 234 increases the distance between the flexible connection piece 235 and the rigid substrate portion 111, so that the Z-axis coordinate of the rotation center R of the movable part 21 can be equal to the Z-axis coordinate of the rigid substrate portion 111.

[0171] It will be appreciated that, based on the fact that the flexible connection piece 235 is fixed to the side edge of the rigid connection piece 234, it is not necessary to arrange an avoidance space at the bottom of the rigid connection piece 234 in order to avoid interference between the flexible connection piece 235 and the rigid connection piece 234. That is, no protrusion needs to be arranged on the side relating to the rigid connection piece 234 and facing away from the rigid board portion 111.

[0172] The above description is merely a specific embodiment of the present application, and is not intended to limit the scope of protection of the present application. Any variations or replacements that can be easily imagined by those skilled in the art within the technical scope disclosed in the present application shall be within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the scope of protection of the claims.

Claims

1. A camera module including a lens assembly and an image stabilization assembly, the lens assembly includes a rigid-flexible printed circuit board, a lens, and an image sensor, the rigid-flexible printed circuit board includes a rigid board portion and a flexible board portion extending from the rigid board portion, the lens and the image sensor are fixed to the rigid board portion, the image stabilization assembly includes a movable part, a fixed part, and a connecting part, the movable part is fixed to the lens assembly, the fixed part is connected to the movable part using the connecting part, the movable part is configured to rotate relative to the fixed part using the connecting part, a coordinate of a rotation center of the movable part in a Z-axis direction is close to or equal to a coordinate of the rigid substrate portion in the Z-axis direction, and the Z-axis direction is an optical axis direction of the lens; Camera module.

2. 2. The camera module of claim 1, wherein the Z-axis direction distance between the center of rotation of the movable part and the rigid substrate portion is a first distance, the first distance being less than half the Z-axis direction thickness of a base of the lens, and the base of the lens being a portion from the rigid substrate portion to a Z-axis direction height of the movable part including a magnetic body fixed around the lens.

3. 3. The camera module of claim 1, wherein the connection part includes a movable base and an elastic connection piece, the movable base being related to the rigid substrate portion and fixed to the side away from the lens, one end of the elastic connection piece being connected to the movable base and the other end being connected to the fixed part.

4. 4. The camera module of claim 3, wherein the elastic connecting piece includes a plurality of spring plates, both ends of which are connected to the movable base and the fixed part, the plurality of spring plates are arranged symmetrically in the X-axis direction and symmetrically in the Y-axis direction, both the X-axis direction and the Y-axis direction are perpendicular to the Z-axis direction, the X-axis direction and the Y-axis direction intersect perpendicularly, and the intersection of the X-axis and the Y-axis is the rotation center of the movable part.

5. The camera module according to claim 4 , wherein the flexible substrate portion extends from the rigid substrate portion to an outside of the image stabilization assembly along the X-axis direction or the Y-axis direction.

6. 6. The camera module according to claim 3, wherein the movable base includes a first base and a second base, the second base being fixed to a side of the first base away from the lens assembly, one end of the elastic connecting piece being fixed to the second base, and a gap being formed between the elastic connecting piece and the first base.

7. 7. A camera module according to claim 3, wherein the fixed part further includes a fixed baffle located on the side of the elastic connecting piece and away from the movable base, a gap is formed between the fixed baffle and the elastic connecting piece, and a projection of the fixed baffle onto the movable base covers at least a portion of a projection of the elastic connecting piece onto the movable base.

8. The camera module according to claim 3 , wherein the elastic connecting piece is made of a conductive material, and the elastic connecting piece is electrically connected to the rigid board part and the fixed part.

9. The movable parts further include an inner frame and a first driving piece, the inner frame being disposed around the lens assembly and the first driving piece being fixed around the inner frame; 9. The camera module of claim 3, wherein the fixed part includes a bracket and a second driving piece, the bracket being located outside the movable part, the second driving piece being fixed relative to the bracket and positioned opposite the first driving piece, and when the image stabilization assembly responds to an electrical signal, a magnetic field effect is formed between the second driving piece and the first driving piece to rotate the lens assembly relative to the fixed part.

10. The first driving piece includes a magnetic body, and the second driving piece includes a coil; The camera module of claim 9 , wherein the fixed part further comprises a connection plate, the connection plate being fixed to the bracket, the connection plate being electrically connected to the coil.

11. The bracket includes a first side wall and a second side wall disposed opposite to each other, one end of a part of the elastic connecting piece is fixed to a middle region of the first side wall and the other end is fixed to the movable base, one end of another part of the elastic connecting piece is fixed to a middle region of the second side wall and the other end is fixed to the movable base, 11. The camera module of claim 10, wherein the connecting plate includes two pull-out ends arranged opposite each other, one pull-out end being connected to the elastic connecting piece fixed to the first side wall and the other pull-out end being connected to the elastic connecting piece fixed to the second side wall.

12. 12. The camera module of claim 11, wherein the bracket further includes a third side wall connected between the first side wall and the second side wall, the third side wall being provided with an avoidance space, and the flexible substrate portion extends to the outside of the image stabilization assembly through the avoidance space.

13. The camera module of claim 9 , wherein the image stabilization assembly further comprises a position detector configured to detect a position of the movable part relative to the fixed part.

14. 14. The camera module of claim 9, wherein the elastic connecting piece includes a spring plate and an extension piece, one end of the spring plate is fixed to the movable base and the other end is fixed to the fixed part, and the extension piece extends from the end of the spring plate fixed to the movable base to the rigid board portion and is electrically connected to the rigid board portion.

15. 15. An electronic device comprising a housing and a camera module according to any one of claims 1 to 14, said camera module being attached to said housing.

Images