Image sensor image stabilization components, camera devices and electronic equipment

Abstract

This application provides an image sensor image stabilization component, a camera device, and an electronic device. The image sensor image stabilization component includes a fixed component, a rotating component, a movable component, and a driving component. The fixed component includes a base, a cover, and a first circuit board. The rotating component includes a rotating platform, a second circuit board, and an image sensor. The movable component connects the fixed component and the rotating component, fixing the rotating component axially. When the driving component drives the rotating component to move, the rotating component can only rotate relative to the fixed component and cannot move. The driving component includes a pair of opposing coils and permanent magnets. When current flows through the coils, they generate a magnetic field. The permanent magnets move relative to the coils under the influence of the magnetic field, thereby driving the rotating component to rotate relative to the fixed component along a first plane via the movable component. The first plane is a plane perpendicular to the optical axis of the light rays incident on the image sensor.

Description

Technical Field

[0001] This application relates to the field of camera equipment technology, and in particular to an image sensor image stabilization component, camera device, and electronic device. Background Technology

[0002] Photography technology has become an important tool in daily life and production, such as taking pictures and videos. With the development of mobile devices, users' demand for photography using these devices is increasing, as are their requirements for image quality. However, when using mobile devices to take pictures, hand tremors, subject movement, or limitations of the optical environment can easily result in blurry images. To improve this situation, optical image stabilization technology is needed.

[0003] Current optical image stabilization technologies detect camera shake and compensate for motion along five axes (X, Y, Roll, Yaw, and Pitch) to achieve image stabilization during shooting. Moving the lens compensates for motion in the Yaw and Pitch directions, while moving the image sensor compensates for motion in the X, Y, and Roll directions.

[0004] Figures 1a to 1c This is a schematic diagram illustrating the principle of image stabilization compensation for the image sensor in a camera device. (Example) Figure 1a As shown, light rays from object setpoint A pass through lens 01 and reach position A1 of image sensor 02, thus object setpoint A is imaged at position A1 of image sensor 02. During the shooting process, the camera device experiences shaking, such as... Figure 1b As shown, without any adjustment, the object setpoint A passes through lens 01 and forms an image at position A2 on image sensor 02, causing ghosting in the captured image. Figure 1c As shown, the position of the image sensor 02 can be adjusted so that the object set point A is imaged at position A1 of the image sensor 02, so as to capture a clear image. Summary of the Invention

[0005] This application provides an image sensor image stabilization component, a camera device, and an electronic device to adjust the position of the image sensor to achieve image stabilization of the camera device. The image sensor image stabilization component has a relatively simple structure and a relatively reliable motion process.

[0006] Firstly, this application provides an image sensor image stabilization component, which includes a fixed component, a rotating component, a movable component, and a driving component. The fixed component includes a base, a cover, and a first circuit board. The cover is fixedly connected to the base to form the outer shell of the image sensor image stabilization component, and the first circuit board is fixed to the base. The rotating component includes a rotating platform, a second circuit board, and an image sensor. The second circuit board is fixed to the rotating platform, and the image sensor is fixed to the second circuit board, allowing the image sensor to move with the rotating platform. The image sensor is also electrically connected to the second circuit board to transmit the image signal acquired by the image sensor to an external device. The movable component connects the fixed component and the rotating component, supports the rotating component, and axially fixes the rotating component, so that the rotating component and the fixed component are axially fixed along the optical axis of the light rays incident on the image sensor. When the driving component drives the rotating component to move, the rotating component can only rotate relative to the fixed component and cannot move. The driving component includes a pair of coils and permanent magnets, i.e., each permanent magnet corresponds to one coil. The aforementioned coil and permanent magnet are fixed to the rotating assembly and the fixed assembly, respectively, so that when the coil and the permanent magnet rotate relative to each other, the rotating assembly can rotate relative to the fixed assembly. Specifically, the coil can be fixed and electrically connected to the first circuit board, i.e., the coil is fixed to the fixed assembly, and the permanent magnet is fixed to the rotating platform, i.e., the permanent magnet is fixed to the rotating assembly; or, the permanent magnet can be fixed to the base, i.e., the permanent magnet is fixed to the fixed assembly, and the coil is fixed and electrically connected to the second circuit board, i.e., the coil is fixed to the rotating assembly. When current flows through the coil, it generates a magnetic field. Influenced by the magnetic field of the coil, the permanent magnet moves relative to the coil, thereby driving the rotating assembly to rotate relative to the fixed assembly along a first plane via the movable assembly. The first plane is a plane perpendicular to the optical axis of the light rays incident on the image sensor. In this design, the rotating assembly is axially fixed relative to the fixed assembly, and only circumferential rotation is possible, thus ensuring a more reliable connection between the rotating assembly and the fixed assembly and a more stable movement process.

[0007] The aforementioned driving component may also include a driving chip, which is signal-connected to the coil and external devices respectively. Specifically, it can be electrically connected through a circuit board. Thus, the driving chip can determine the shaking of the image captured by the camera device based on the signal from the external device, and control the direction and magnitude of the current through the coil to control the direction and angle of rotation of the rotating component, so as to adapt to the shaking of the camera device and improve the automatic image stabilization function of the camera device.

[0008] The drive component may also include a position sensor for acquiring position information of the rotating platform and is connected to the drive chip. The drive chip can then determine the position of the rotating component based on the signal from the position sensor. As a feedback signal, the drive chip can determine whether the image sensor has moved to the required position, thereby improving the accuracy of the image sensor stabilization component.

[0009] To facilitate the assembly of image sensor image stabilization components, the drive chip and position sensor can be located on the same side as the coil, thereby reducing the dynamic connection between the fixed and rotating components, lowering the risk of open circuits, and improving the reliability of the image sensor image stabilization components.

[0010] The aforementioned active components may also include a flexible circuit board connected between the image sensor and external devices. Specifically, the flexible circuit board can be electrically connected to a second circuit board to enable the rotating platform to move and transmit signals from the image sensor to the outside. To improve reliability, a larger area of ​​the flexible circuit board can be fixedly connected to the second circuit board, reducing the risk of open circuits.

[0011] The active component may also include a resilient reset element connected between the rotating platform and the base. After the drive component drives the rotating platform to rotate, the rotating platform can be reset along the first plane to facilitate the next shooting.

[0012] The active components specifically include a central rotating component and peripheral support components. The central rotating component connects the rotating platform and the base, fixing the rotating platform axially to the base, meaning the rotating platform can only rotate relative to the base. The peripheral support components are located on the periphery of the central rotating component, forming a planar support together with the central rotating component. This ensures the rotating platform remains in a first plane, preventing tilting and guaranteeing the accuracy of the image sensor.

[0013] The specific structure of the aforementioned peripheral support is not limited. In one technical solution, the peripheral support may include at least two rolling balls, which are disposed on the periphery of the central rotating component, thereby forming a planar support portion together with the central rotating component. Since the rotating platform does not need to be provided with receiving grooves for the rolling balls, the rolling ball structure provides unlimited positioning for the rotating platform, serving only a supporting function, thus ensuring the smooth rotation of the rotating platform.

[0014] The specific structure of the aforementioned central rotating component is not limited. In one technical solution, the central rotating component includes a central rolling ball and a rolling ball receiving chamber. The rolling ball receiving chamber includes a first chamber and a second chamber, wherein the first chamber is fixed to the base, and the second chamber is fixed to the rotating platform. The central rolling ball is housed within the rolling ball receiving chamber and is limited by the side walls of the first and second chambers. The central rolling ball can only roll within the rolling ball receiving chamber and cannot move, thus allowing the rotating component to rotate relative to the fixed component but preventing it from moving.

[0015] In another technical solution, the central rotating component may also include a central rotating shaft and a shaft hole. Specifically, the central rotating shaft can be located on the rotating platform, and the shaft hole can be located on the base; or, the shaft hole can be located on the rotating platform, and the central rotating shaft can be located on the base. The central rotating shaft is adapted to the shaft hole so that the central rotating shaft can extend into the shaft hole. The side wall of the shaft hole can then limit the movement of the central rotating shaft, so that the rotating platform can only rotate relative to the base and cannot move.

[0016] Specifically, when configuring the aforementioned pivot shaft and shaft hole, the pivot shaft can be a frustum-shaped pivot shaft, and the shaft hole can be a cylindrical shaft hole. Furthermore, the area of ​​the cross-section of the frustum-shaped pivot shaft parallel to the first plane gradually increases away from the shaft hole. In this design, the frustum-shaped pivot shaft is similar to a cone, which facilitates the installation of the pivot shaft into the shaft hole. In addition, the frustum-shaped pivot shaft and the cylindrical shaft hole have line contact, which reduces the likelihood of the rotating platform tilting, thus improving the image sensor's image stabilization effect.

[0017] In another technical solution, the central rotating component may further include bearing balls and bearing grooves that house the bearing balls. Specifically, this solution includes multiple bearing balls. The multiple bearing balls, housed in the bearing grooves, can also form a planar support portion. Therefore, in this solution, the bearing balls and bearing grooves can serve not only as the central rotating component but also as peripheral support components. This simplifies the installation structure of the image sensor image stabilization assembly.

[0018] In this design, the image sensor stabilization component may further include a first magnetic element located on the side of the coil away from the permanent magnet and magnetically attracted to it. This design can encourage the fixed and rotating components to move closer together; specifically, the fixed and rotating components can be tightly abutted against the moving components, thereby improving the stability of the image sensor stabilization component. Furthermore, more magnetic lines of force from the permanent magnet can pass through the coil, enhancing the driving effect of the coil on the permanent magnet.

[0019] The image sensor image stabilization assembly may also include a second magnetic element located between the image sensor and the permanent magnet, which is used to shield the image sensor from interference by the permanent magnet and ensure the accuracy of the image sensor.

[0020] Furthermore, the aforementioned image sensor image stabilization component also includes an infrared filter, which is positioned opposite to the image sensor. In this design, the infrared filter of the camera device can be assembled into the image sensor image stabilization component, simplifying the post-assembly process of the camera device. Specifically, the infrared filter can be mounted on a mobile platform or on a cover.

[0021] Secondly, this application also provides a camera device, which includes a lens assembly and an image sensor stabilization component as described in any of the above-mentioned technical solutions. The optical axis of the lens assembly is perpendicular to the first plane. The lens assembly is mounted on the side of the image sensor facing away from the circuit board. Specifically, the lens assembly can be mounted on the cover of the image sensor stabilization component. In this solution, the image sensor deflection of the image sensor stabilization component is relatively large, thus the camera device can have a greater compensation capability. Furthermore, in this solution, the camera device assembly process is relatively simple, and the image sensor stabilization component can be inspected before assembly, which helps to improve the product yield of the camera device.

[0022] The aforementioned camera device can be a periscope camera device, which includes a reflective component, a lens component, and an image sensor image stabilization component. The periscope camera device utilizes the reflective effect of the reflective component to make the optical axis of the lens component of the camera device perpendicular to the optical axis of the light incident on the camera device, so that the camera device can be horizontally installed in the electronic device.

[0023] Thirdly, this application also provides an electronic device that includes the aforementioned camera device. The aforementioned electronic device has good image stabilization compensation capabilities, good imaging effects, and is beneficial for reducing the thickness of the electronic device. Attached Figure Description

[0024] Figures 1a to 1c A schematic diagram illustrating the principle of image stabilization compensation for the image sensor of a camera device;

[0025] Figure 2 This is a schematic diagram of the structure of an electronic device in an embodiment of this application;

[0026] Figure 3 This is an exploded structural diagram of an image sensor image stabilization component in an embodiment of this application;

[0027] Figure 4 This is an exploded view of another image sensor image stabilization component in an embodiment of this application;

[0028] Figure 5 This is an exploded view of an image sensor image stabilization component according to another embodiment of this application;

[0029] Figure 6 This is a schematic diagram of another exploded structure of the image sensor image stabilization component in another embodiment of this application;

[0030] Figure 7 This is an exploded structural diagram of an image sensor image stabilization component in another embodiment of this application;

[0031] Figure 8This is an exploded view of another embodiment of the image sensor image stabilization component in this application;

[0032] Figure 9 This is a schematic diagram of the exploded structure of the image sensor and filter combination in an embodiment of this application.

[0033] Figure label:

[0034] Background Technology Section:

[0035] 01-Lens; 02-Image sensor;

[0036] Part of the embodiments of this application:

[0037] 010 - Display screen; 020 - Back cover;

[0038] 030 - Camera device; 031 - Reflective component;

[0039] 032-Lens assembly; 033-Image sensor image stabilization assembly;

[0040] 100 - Fixing component; 110 - Base;

[0041] 120 - First circuit board; 130 - Cover shell;

[0042] 200 - Rotating assembly; 210 - Rotating platform;

[0043] 220 - Second circuit board; 230 - Image sensor;

[0044] 240 - Flexible circuit board; 250 - Infrared filter;

[0045] 260 - Filter holder; 300 - Movable assembly;

[0046] 310 - Central rotating component; 311 - Center ball;

[0047] 312 - Ball-shaped storage compartment; 3121 - First compartment section;

[0048] 3122 - Second Warehouse Section; 313 - Transfer Shaft;

[0049] 314 - Shaft bore; 315 - Bearing ball;

[0050] 316 - Bearing groove; 320 - Peripheral support;

[0051] 321 - Rolling ball; 400 - Drive assembly;

[0052] 410 - Coil; 420 - Permanent magnet;

[0053] 430 - Driver chip; 440 - Position sensor;

[0054] 450 - Hall permanent magnet; 460 - First magnetic component;

[0055] 470 - Second magnetic component. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0057] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more” unless the context clearly indicates otherwise.

[0058] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0059] With the development of camera technology, more and more electronic devices have camera functions, and these devices are being used in many fields such as production and daily life. In these applications, the camera device or the object being filmed may be moving, which can easily lead to ghosting or distortion in the video, resulting in poor image quality. In particular, when camera devices are used in mobile terminals such as smartphones or drones, the demand for image stabilization is even higher.

[0060] Figure 2 This is a schematic diagram of the structure of an electronic device in an embodiment of this application, such as... Figure 2As shown, the electronic device provided in this embodiment includes a display screen 010, a back cover 020, and a camera device 030, thereby realizing the camera function of the electronic device. The display screen 010 and the back cover 020 are arranged opposite to each other, and the camera device 030 is disposed between the display screen 010 and the back cover 020. In specific embodiments, the electronic device can be a smartphone, tablet computer, wearable device, surveillance camera, or various cameras, etc., which are not listed in this application. The camera device includes a lens assembly 032 and an image sensor stabilization assembly 033, and the optical axis of the lens assembly 032 is perpendicular to the image sensor 230 of the image sensor stabilization assembly 033. The image sensor stabilization assembly 033 can compensate for motion shake that occurs when the camera device 030 shoots, so that the camera device 030 has a better stabilization effect. The structure of the image sensor stabilization assembly 033 is relatively reliable and can realize a large range of rotation of the image sensor 230.

[0061] Figure 3 This is an exploded view of an image sensor image stabilization component in an embodiment of this application. Figure 4 This is an exploded view of another image sensor image stabilization component in an embodiment of this application.

[0062] like Figure 2 , Figure 3 and Figure 4As shown, the image sensor image stabilization assembly includes at least a fixed component 100, a rotating component 200, a movable component 300, and a driving component 400. The fixed component 100 includes a base 110 and a first circuit board 120, which is fixed to the base 110. When the image sensor 230 is operating, the fixed component 100 is fixed in place. The rotating component 200 includes a rotating platform 210, a second circuit board 220, and the image sensor 230. The second circuit board 220 is fixed to the rotating platform 210, and the image sensor 230 is fixed and electrically connected to the second circuit board 220, allowing the image sensor 230 to move with the rotating platform 210. The movable component 300 is connected between the fixed component 100 and the rotating component 200, enabling the rotating component 200 to be axially fixed to the fixed component 100 along the optical axis of the light rays incident on the image sensor 230, while remaining circumferentially unfixed. This allows the rotating component 200 to rotate only along a first plane M, which is a plane perpendicular to the optical axis of the light rays incident on the image sensor 230. The driving component 400 includes a coil 410 and a permanent magnet 420, which are positioned opposite each other. When current flows through the coil 410, a magnetic field is generated, allowing the permanent magnet 420 to move relative to the coil 410 under the influence of this magnetic field. The coil 410 and permanent magnet 420 are fixed to the fixed assembly 100 and the rotating assembly 200, respectively. Alternatively, the coil 410 can be fixed to the fixed assembly 100, electrically connected to and fixed to the first circuit board 120, while the permanent magnet 420 is fixed to the rotating assembly 200, specifically to the rotating platform 210; or the coil 410 can be fixed to the rotating assembly 200, electrically connected to the second circuit board 220, while the permanent magnet 420 is fixed to the fixed assembly 100, specifically to the base 110. Thus, when the coil 410 is energized, the coil 410 and the permanent magnet 420 can move relative to each other, thereby driving the rotating assembly 200 to move relative to the fixed assembly 100. Since the rotating assembly 200 and the fixed assembly 100 can only rotate along the first plane M, the image sensor 230 rotates relative to the lens assembly, achieving image stabilization compensation. The image sensor image stabilization assembly in this solution has a relatively reliable structure, is easy to assemble, and the rotation of the rotating assembly 200 is unrestricted, allowing for a large angle of rotation, thus providing strong image stabilization compensation capability.

[0063] When the aforementioned image sensor image stabilization component is installed in a camera device, the coil 410 generates a magnetic field under the influence of current. This magnetic field applies a driving force to the permanent magnet 420, causing the permanent magnet 420 to move relative to the coil 410. Since the coil 410 and the permanent magnet 420 are respectively fixed to the fixed assembly 100 and the rotating assembly 200, and the rotating assembly 200 is axially fixed to the fixed assembly 100, the rotating assembly 200 can be driven to rotate relative to the fixed assembly 100. When the magnitude of the current in the coil 410 is adjusted, the driving force applied by the coil 410 to the permanent magnet 420 changes, thereby adjusting the rotation of the image sensor 230. When the direction of the current in the coil 410 is adjusted, the rotation direction of the image sensor 230 can be adjusted. Thus, the image sensor image stabilization component can adjust the angle relationship between the image sensor 230 and the lens assembly by using the coil 410 to drive the permanent magnet 420 to move, based on the shaking of the captured image, thereby achieving the image stabilization function of the camera device. In this scheme, the rotating component 200 is axially fixed relative to the fixed component 100, and can only rotate in the circumferential direction. Therefore, the connection between the rotating component 200 and the fixed component 100 is more reliable, and the movement process is more stable.

[0064] In this design, the coil 410 can be fixed to the base 110 and electrically connected to the first circuit board 120 of the base 110. The permanent magnet 420 is fixed to the rotating platform 210. This results in a larger distance between the coil 410 and the first circuit board 120 and the image sensor 230, reducing electromagnetic and thermal interference to the image sensor 230, improving its signal-to-noise ratio, and enhancing its accuracy. Therefore, this design improves the optical image stabilization compensation capability of the image sensor stabilization component. The permanent magnet 420 can be positioned on the side of the rotating platform 210 with the image sensor 230, or it can be positioned on the side of the rotating platform 210 opposite to the image sensor 230. Positioning the permanent magnet 420 opposite to the image sensor 230 facilitates heat dissipation for the image sensor 230. Specifically, the permanent magnet 420 can be fixed by bonding, welding, threaded connection, or laser bonding.

[0065] Furthermore, if the coil 410 is fixed to the base 110 and the permanent magnet 420 is fixed to the rotating platform 210, only one set of signal transmission components connected to the image sensor 230 needs to be installed. However, if the coil 410 and the image sensor 230 are fixed relative to each other, an additional set of signal transmission components connected to the coil 410 is required, occupying more space and requiring more clearance. Therefore, this technical solution is beneficial in reducing the space occupied by the moving signal transmission components and the clearance space required for their movement. Please refer to [reference needed]. Figure 2The aforementioned camera device is a periscope camera device, which includes a reflective component 031, a lens assembly 032, and an image sensor image stabilization component 033. The periscope camera device utilizes the reflective effect of the reflective component 031 to ensure that the optical axis P of the light rays incident on the camera device is perpendicular to the optical axis N of the lens assembly 032. Figure 2 As shown, the first plane MM can be made perpendicular to the display screen 010. When the rotating platform 210 of the image sensor anti-shake component 033 rotates, it needs to move in the thickness direction of the electronic device. In this scheme, there are fewer signal transmission components that need to move, so the space occupied and the clearance space required are less, which is conducive to reducing the thickness of the electronic device.

[0066] like Figure 3 As shown, the fixing component 100 of the image sensor image stabilization assembly may further include a cover 130, which is fixedly connected to the base 110 and forms an accommodating space for the rotating platform 210. The specific method of fixing the cover 130 to the base 110 is not limited; for example, the cover 130 can be fixedly connected to the base 110 by adhesive bonding, welding, laser bonding, threaded connection, or snap-fit. The cover 130 can prevent impurities from entering the image sensor image stabilization assembly and also serves to block light, preventing external light from entering the image sensor 230. Furthermore, the cover 130 can also be used to mount the lens assembly of the camera device.

[0067] Please continue to refer to this. Figure 3 and Figure 4 The aforementioned driving component 400 may further include a driving chip 430, which is electrically connected to the coil 410 and external devices (not shown in the figure). The driving chip 430 can obtain the required angle and direction for rotating the image sensor 230 based on signals from the external devices, and input a corresponding current into the coil 410, causing the coil 410 to drive the permanent magnet 420 to rotate, thereby achieving jitter compensation. This image sensor anti-shake component can be manufactured, accepted, and installed as a complete unit.

[0068] The image sensor stabilization component described above may also include a position sensor 440, which is signal-connected to the driver chip 430. The position sensor 440 is used to acquire position information of the rotating platform 210, or in other words, to acquire position information of the image sensor 230. The driver chip 430 can receive the signal from the position sensor 440 as a feedback signal for the movement position of the rotating platform 210, thereby improving the accuracy of the stabilization control.

[0069] The aforementioned position sensor 440 can be a magnetic sensor, optical sensor, acoustic sensor, electrical sensor, thermal sensor, mechanical sensor, or chemical property sensor, etc. This application does not limit the type of position sensor 440; users can choose a suitable sensor type according to their needs. Specifically, when the position sensor 440 is a magnetic sensor, the position of the permanent magnet 420 can be directly monitored using the magnetic sensor, resulting in a relatively simple structure without the need for additional monitoring markers. In a specific embodiment, the aforementioned position sensor 440 can also be a Hall sensor and a Hall permanent magnet 450 opposite to the Hall sensor. The Hall sensor can be disposed on the fixed component 100, and the Hall permanent magnet 450 can be disposed on the rotating component 200. Thus, the position of the rotating component 200 can be monitored by the Hall sensor monitoring the position of the Hall permanent magnet 450. Alternatively, the Hall permanent magnet 450 can be located on the fixed component 100, and the Hall sensor on the rotating component 200. The Hall sensor and the driving chip 430 can be located on the same component to facilitate signal transmission between the driving chip 430 and the Hall sensor.

[0070] In one embodiment, the coil 410, position sensor 440, and driver chip 430 are fixedly and electrically connected to the first circuit board 120. The coil 410, position sensor 440, and driver chip 430 can be electrically connected by welding to the electrodes of the first circuit board 120, or fixedly connected by bonding, riveting, or laser bonding. The specific process for fixing the first circuit board 120 to the base 110 is not limited; for example, it can be fixed by bonding, riveting, threaded connection, or laser bonding.

[0071] The specific material and manufacturing process of the coil 410 are not limited. For example, it can be made of copper wire winding, or it can be made of copper plate etching or stacking. This application does not impose any restrictions.

[0072] Please continue to refer to this. Figure 3 and Figure 4 The aforementioned rotating assembly 200 includes a flexible circuit board 240. One end of the flexible circuit board 240 is connected to the image sensor 230, and the other end can be electrically connected to an external device to transmit the signal corresponding to the image obtained by the image sensor 230 to an external processing unit to complete the imaging function of the camera device. The flexible circuit board 240 is flexible, specifically, it can have certain folds, allowing it to adapt to the rotation of the rotating assembly 200 without affecting its rotation. Furthermore, the flexible circuit board 240 has high strength and better reliability than wires, making it less prone to open circuits due to frequent movement. To further improve reliability, a larger area of ​​the flexible circuit board 240 can be fixedly connected to the second circuit board 220, reducing the risk of open circuits.

[0073] In addition, the active component 300 may also include an elastic reset element (not shown in the figure), such as a spring or leaf spring structure. This elastic reset element is connected between the rotating platform 210 and the base 110. When the rotating platform 210 rotates under the drive of the drive component 400, and there is no current in the coil 410 of the drive component 400, the elastic reset element can reset the rotating platform 210 to its initial state for the next shot. For example, the elastic reset element may be a spring located in various directions around the rotating platform 210, or a spring located between the rotating platform 210 and the cover 130 and perpendicular to the rotating platform 210, or a spring located between the rotating platform 210 and the base plate and perpendicular to the rotating platform 210, etc. Of course, in other embodiments, the image sensor image stabilization component may not include an elastic reset element. During each shot, the drive component 400 drives the rotating platform 210 to rotate to the required position under the control of the drive chip 430.

[0074] In the above embodiments, the base 110 can be a plastic base 110 to prevent magnetic interference, or metal can be embedded in the plastic material as the base 110 to improve its strength. Of course, the base 110 can also be a metal base 110, and this application does not impose any restrictions.

[0075] To achieve an axially fixed connection between the rotating assembly 200 and the fixed assembly 100, and to enable rotation along the first plane M under the drive of the driving assembly 400, the movable assembly 300 can include a central rotating member 310 and a peripheral support member 320. The central rotating member 310 connects the rotating platform 210 and the base 110, ensuring an axially fixed connection between the rotating assembly 200 and the fixed assembly 100, meaning they can only rotate relative to each other and cannot move relative to each other. The peripheral support member 320 and the central rotating member 310 form a planar support portion, which keeps the rotating platform 210 positioned on the first plane M without tilting, and ensures a stable connection between the rotating platform 210 and the base 110.

[0076] In a specific embodiment, the peripheral support member 320 includes at least two rolling balls 321. The at least two rolling balls 321 are arranged on the periphery of the central rotating member 310. On the one hand, they facilitate the formation of a planar support with the central rotating member 310. On the other hand, they do not affect the rotation between the rotating platform 210 and the base 110, thus ensuring the smoothness of the movement of the rotating assembly 200.

[0077] The aforementioned central rotating member 310 may include various embodiments. For one embodiment, please refer to... Figure 3 and Figure 4The aforementioned central rotating component 310 includes a central ball 311 and a ball receiving chamber 312. Specifically, the ball receiving chamber 312 includes a first chamber portion 3121 located on the base 110 and a second chamber portion 3122 located on the rotating platform 210. The first chamber portion 3121 and the second chamber portion 3122 respectively have chamber walls adapted to the central ball 311. The chamber walls limit the central ball 311, preventing the central ball 311 from moving along the first plane M, thereby preventing the rotating platform 210 from moving relative to the base 110, and only allowing it to rotate.

[0078] The materials of the aforementioned rolling ball 321 and center rolling ball 311 can be metal or ceramic. This application does not impose any restrictions, as long as the strength and wear resistance of the rolling ball 321 and center rolling ball 311 are guaranteed.

[0079] Figure 5 This is an exploded view of an image sensor image stabilization component according to another embodiment of this application. Figure 6 This is a schematic diagram of another exploded structure of the image sensor stabilization component in another embodiment of this application.

[0080] like Figure 5 and Figure 6 As shown, in another embodiment, the aforementioned central rotating component 310 includes a central rotating shaft 313 and a shaft hole 314. The central rotating shaft 313 and the shaft hole 314 are adapted to each other, allowing the central rotating shaft 313 to rotate within the shaft hole 314. Specifically, the central rotating shaft 313 can be disposed on the rotating platform 210, and the shaft hole 314 can be disposed on the base 110; or the central rotating shaft 313 can be disposed on the base 110, and the shaft hole 314 can be disposed on the rotating platform 210. In this solution, the fit between the central rotating shaft 313 and the shaft hole 314 makes it less likely for relative movement to occur between the rotating platform 210 and the base 110, resulting in a more reliable connection structure.

[0081] Specifically, when configuring the aforementioned transfer shaft 313, it can be a frustum-shaped transfer shaft, and the shaft hole 314 can be a cylindrical shaft hole. That is, the cross-sectional shape of the transfer shaft 313 along the direction perpendicular to the first plane M can be trapezoidal, and the cross-sectional shape of the shaft hole 314 along the direction perpendicular to the first plane M can be rectangular. The area of ​​the cross-section of the frustum-shaped transfer shaft parallel to the first plane M gradually increases in the direction away from the shaft hole 314. Therefore, the dimension of the side of the frustum-shaped transfer shaft facing the cylindrical shaft hole is smaller, facilitating its installation into the shaft hole 314. Furthermore, the frustum-shaped transfer shaft and the shaft hole can achieve line contact, facilitating the rotation of the rotating platform 210 relative to the base 110 and reducing the likelihood of skewness.

[0082] Figure 7 This is an exploded view of an image sensor image stabilization component in another embodiment of this application. Figure 8This is an exploded view of another embodiment of the image sensor image stabilization component in this application.

[0083] like Figure 7 and Figure 8 As shown, in another embodiment, the aforementioned central rotating member 310 includes a bearing ball and a bearing groove 316 for housing the bearing ball, with the bearing ball housed within the bearing groove 316. The bearing ball forms a bearing within the bearing groove 316, allowing the rotating assembly 200 to rotate but not move between it and the fixed assembly 100. Furthermore, since the bearing ball and bearing groove 316 have a large cross-section along the direction parallel to the first plane M, the rotating assembly 200 can be held within the first plane M. Therefore, the bearing ball and bearing groove 316 can serve as both the central rotating member 310 and the peripheral support member 320, eliminating the need for a separate peripheral support member 320.

[0084] Of course, in this embodiment, an additional peripheral support 320, such as a ball 321 on the periphery, can also be provided to prevent the rotating component 200 from colliding with the fixed component 100 and improve the structural stability of the image sensor anti-shake component.

[0085] In another specific embodiment, the image sensor stabilization component further includes a first magnetic element 460, which is located in the same component as the coil 410. That is, if the coil 410 is located in the fixed component 100, then the first magnetic element 460 is also located in the fixed component 100; if the coil 410 is located in the rotating component 200, then the first magnetic element 460 is also located in the rotating component 200. The first magnetic element 460 is magnetically attracted to the permanent magnet 420. In this scheme, the rotating platform 210 can be made to tend to move towards the base 110, thus abutting against the movable component 300. This scheme can reduce the possibility of the image sensor 230 moving closer to or away from the first circuit board 120 or tilting towards the first circuit board 120, reducing interference to the image sensor 230 and improving the imaging quality of the camera device. Furthermore, the first magnetic element 460 can be disposed on the side of the coil 410 away from the permanent magnet 420, allowing more magnetic lines of force from the permanent magnet 420 to pass through the coil 410, thereby increasing the driving force of the coil 410 on the permanent magnet 420 and improving the image stabilization performance of the image sensor stabilization assembly. Additionally, when the position sensor 440 includes a Hall sensor and a Hall permanent magnet 450, the first magnetic element 460 can also allow more magnetic lines of force from the Hall permanent magnet 450 to pass through the Hall sensor, thereby improving the reliability of the position sensor 440.

[0086] Specifically, the first magnetic component 460 can be a single, plate-shaped magnetic component, such as a yoke plate. Alternatively, the first magnetic component 460 can be one-to-one with the permanent magnet 420, or the first magnetic component 460 can be one-to-one with a portion of the permanent magnet 420. The specific method by which the first magnetic component 460 is fixed to the base 110 is not limited; for example, it can be installed by adhesive bonding or welding.

[0087] In another specific embodiment, the image sensor stabilization assembly further includes a second magnetic element 470 located between the permanent magnet 420 and the image sensor 230. This second magnetic element 470 can block electromagnetic interference from the permanent magnet 420 to the image sensor 230 and also increase the attraction force of the permanent magnet 420 during assembly. The second magnetic element 470 can also enhance the heat dissipation effect and strength of the image sensor stabilization assembly. The second magnetic element 470 can be a plate-shaped magnetic element, such as a yoke plate. Of course, the second magnetic element 470 can also be a multi-piece structure, for example, one-to-one with the permanent magnet 420; this application does not impose any limitations.

[0088] When specifically preparing the first magnetic component 460 and the second magnetic component 470, they can be fixedly connected by an attachment process, or they can be prepared by an injection molding process.

[0089] Please continue to refer to this. Figure 3 , Figure 4 and Figure 9 ,in, Figure 9This is an exploded view of the image sensor 230 and filter combination in one embodiment of this application. In another embodiment, the image sensor stabilization component may further include an infrared filter 250 to filter infrared light entering the image sensor 230, thereby improving image quality. The infrared filter 250 is disposed opposite to the image sensor 230, and the projection of the sensing area of ​​the image sensor 230 toward the first circuit board 120 in a vertical direction is located within the projection of the infrared filter 250 toward the first circuit board 120 in a vertical direction. The image sensor stabilization component may include a filter support frame for mounting the infrared filter 250. The infrared filter 250 may be mounted on the cover 130 or on the rotating platform 210. When the infrared filter 250 is mounted on the rotating platform 210, the infrared filter 250 can move together with the image sensor 230, thus ensuring that all light passes through the infrared filter 250 and is received by the image sensor 230. When the infrared filter 250 is installed on the cover 130, the area of ​​the infrared filter 250 needs to be large so that when the image sensor 230 rotates with the rotating platform 210, the projection of the sensing area of ​​the image sensor 230 toward the vertical direction of the first circuit board 120 is located within the projection of the infrared filter 250 toward the vertical direction of the first circuit board 120.

[0090] For specific embodiments, see Figure 9 The infrared filter 250 is mounted using a filter holder 260. The filter holder 260 can be disposed around the image sensor 230, forming a sealed cavity with the second circuit board 220 and the filter, blocking external stray light and dust, reducing interference from stray light and dust on the image sensor 230, and improving the working effect of the image sensor 230.

[0091] In the specific fabrication of the rotating platform 210 of this application, the material of the rotating platform 210 is not limited. To improve the heat dissipation effect of the image sensor 230, the rotating platform 210 has a metal portion at least in the area in contact with the image sensor 230. Specifically, the rotating platform 210 can be a metal rotating platform 210. Alternatively, the surface of the rotating platform 210 in contact with the image sensor 230 may have a metal portion, such as a metal sheet. The metal portion not only allows for rapid heat dissipation of the image sensor 230 but also serves as a shield, blocking external signals from interfering with the image sensor 230, for example, shielding the image sensor 230 from interference from the first circuit board 120 and the driver chip 430. The aforementioned metal portion can be fixed by bonding, welding, threaded connection, or laser bonding.

[0092] Of course, in specific embodiments, the surface of the rotating platform 210 that contacts the image sensor 230 may also have a structure such as a graphite sheet or conductive adhesive to improve the heat dissipation effect of the image sensor 230.

[0093] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An image sensor image stabilization component, characterized in that, Includes fixed components, rotating components, moving components, and drive components; The fixing component includes a base and a first circuit board; the first circuit board is fixed to the base; The rotating assembly includes a rotating platform, a second circuit board, and an image sensor; the second circuit board is fixed to the rotating platform, and the image sensor is fixed and electrically connected to the second circuit board; The movable component is connected between the fixed component and the rotating component, so that the rotating component and the fixed component are axially fixed along the direction of the optical axis of the light rays incident on the image sensor; The drive assembly includes a pair of opposing coils and permanent magnets, wherein the coils are fixed to the fixed assembly and the permanent magnets are fixed to the rotating assembly; or, the coils are fixed to the rotating assembly and the permanent magnets are fixed to the fixed assembly. When current flows through the coil, it generates a magnetic field, which causes the permanent magnet and the coil to move relative to each other, driving the rotating assembly to rotate relative to the fixed assembly along a first plane via the movable assembly; wherein, the first plane is a plane perpendicular to the optical axis of the light rays incident on the image sensor; The movable component includes a central rotating component and peripheral support components. The central rotating component is connected between the rotating platform and the base to achieve axial fixation between the rotating platform and the base. The peripheral support components and the central rotating component form a planar support portion.

2. The image sensor image stabilization component according to claim 1, characterized in that, The driving component further includes a driving chip, which is signal-connected to the coil and external devices respectively. The driving chip is used to control the current of the coil according to the signal from the external devices.

3. The image sensor image stabilization component according to claim 2, characterized in that, The fixing component also includes a position sensor, which is signal-connected to the drive chip; the position sensor is used to collect the position information of the rotating platform, and the drive chip controls the current of the coil according to the position information of the rotating platform.

4. The image sensor image stabilization component according to claim 1, characterized in that, The active component includes a flexible circuit board electrically connected to the image sensor for transmitting signals from the image sensor.

5. The image sensor image stabilization component according to claim 1, characterized in that, The movable component also includes an elastic reset member connected between the rotating platform and the base, for resetting the rotating platform along the first plane.

6. The image sensor image stabilization component according to claim 1, characterized in that, The peripheral support includes at least two rolling balls disposed on the periphery of the central rotating member.

7. The image sensor image stabilization component according to claim 1, characterized in that, The central rotating component includes a central ball and a ball receiving chamber. The ball receiving chamber includes a first chamber and a second chamber. The first chamber is fixed to the base, and the second chamber is fixed to the rotating platform. The central ball is housed in the ball receiving chamber.

8. The image sensor image stabilization component according to claim 1, characterized in that, The central rotating component includes a central rotating shaft and a shaft hole, wherein the central rotating shaft is adapted to the shaft hole.

9. The image sensor image stabilization component according to claim 8, characterized in that, The rotating shaft is a frustum-shaped rotating shaft, and the shaft hole is a cylindrical shaft hole. The area of ​​the cross section of the frustum-shaped rotating shaft parallel to the first plane gradually increases in the direction away from the shaft hole.

10. The image sensor image stabilization component according to claim 1, characterized in that, The central rotating component includes a bearing ball and a bearing groove, with the bearing ball housed within the bearing groove.

11. The image sensor image stabilization component according to any one of claims 1-10, characterized in that, It also includes a first magnetic element that is magnetically attracted to the permanent magnet, the first magnetic element being located on the side of the coil away from the permanent magnet.

12. The image sensor image stabilization component according to any one of claims 1-10, characterized in that, It also includes a second magnetic element, which is located between the image sensor and the permanent magnet.

13. The image sensor image stabilization component according to any one of claims 1-12, characterized in that, It also includes an infrared filter, which is disposed opposite to the image sensor.

14. A camera device, characterized in that, It includes a lens assembly and an image sensor image stabilization assembly as described in any one of claims 1 to 13, wherein the lens assembly is mounted on the side of the image sensor facing away from the first circuit board.

15. The camera device according to claim 14, characterized in that, The camera device is a periscope camera device.

16. An electronic device, characterized in that, Includes the camera device as described in claim 14 or 15.

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