Carrier driving device, camera module and electronic equipment

Abstract

The utility model relates to the field of camera modules, and provides a carrier driving device, a camera module and electronic equipment, and the device comprises a housing, a pedestal, a moving frame, a ball member, a carrier, an anti-shake driving assembly, and a focusing driving assembly. The shell is provided with an inner top surface and side walls; the bottom ends of the side walls are connected with the base; the movable frame is located on the inner side of the shell and provided with a dispensing groove. A glue block is arranged in the glue dispensing groove and is connected with the shell; a ball member directly supported against the inner top surface; the ball member rolls relative to the inner top surface; the anti-shake driving assembly is arranged between the movable frame and the side wall; the anti-shake driving assembly is used for driving the movable frame in the horizontal direction so as to carry out anti-shake movement; the carrier is located on the inner side of the movable frame and used for bearing the lens. The focusing driving assembly is arranged between the movable frame and the carrier; and the focusing driving assembly is used for driving the carrier in the direction of the optical axis so as to perform focusing motion. The device is used for reducing the thickness in the optical axis direction so that electronic products can be lightened and thinned.

Description

Technical Field

[0001] This utility model relates to the field of camera modules, and more particularly to a carrier driving device, a camera module, and an electronic device. Background Technology

[0002] In related technologies, lens driving devices use stacked gaskets to ensure their impact resistance. This not only makes the overall assembly complex, but also results in a thicker thickness along the optical axis, affecting the overall thickness of the electronic product and hindering its slim design.

[0003] Therefore, there is an urgent need for a carrier driving device, camera module, and electronic device to improve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a carrier driving device, a camera module, and an electronic device, which is used to reduce the thickness in the optical axis direction so as to make electronic products thinner and lighter.

[0005] In a first aspect, this utility model provides a carrier driving device, comprising: a housing, a base, a movable frame, a ball component, a carrier, an image stabilization driving assembly, and a focusing driving assembly; the housing has an inner top surface and a side wall; the bottom end of the side wall is connected to the base; the movable frame is located inside the housing, and the movable frame is provided with a dispensing groove; a glue block is provided in the dispensing groove, and the glue block is connected to the housing; the ball component directly rests on the inner top surface; when the movable frame moves relative to the housing, the ball component rolls relative to the inner top surface; the image stabilization driving assembly is disposed between the movable frame and the side wall; the image stabilization driving assembly is used to drive the movable frame in the horizontal direction to perform image stabilization movement; the carrier is located inside the movable frame and is used to carry a lens; the focusing driving assembly is disposed between the movable frame and the carrier; the focusing driving assembly is used to drive the carrier along the optical axis direction to perform focusing movement; the optical axis direction is perpendicular to the horizontal direction.

[0006] Optionally, the rubber block is configured as a damping rubber block; the damping rubber block is used to elastically connect the movable frame and the inner top surface.

[0007] Optionally, the dispensing groove opens toward the inner top surface; the height of the damping rubber block protruding from the moving frame is greater than the height of the ball component protruding from the moving frame, so that the damping rubber block applies impact force to the inner top surface before the ball component.

[0008] Optionally, the image stabilization drive assembly includes image stabilization magnet groups located on up to three directional sides of the moving frame; wherein at least one of the image stabilization magnet groups is a Helbeck array magnet group.

[0009] Optionally, the anti-shake drive component includes a Helbeck array magnet group and two multi-level magnets; the two multi-level magnets are located at opposite ends of the moving frame; the multi-level magnets are configured as multi-level magnetized magnets or multi-level superimposed magnets.

[0010] Optionally, the anti-shake drive assembly includes two Hellbeck array magnet groups; the two Hellbeck array magnet groups are located at adjacent ends of the moving frame, respectively.

[0011] Optionally, the Helbeck array magnet group is formed by stacking a first magnet, a second magnet, and a third magnet, with the second magnet located between the first magnet and the third magnet; the magnetization direction of the first magnet is opposite to that of the third magnet; and the magnetization direction of the first magnet is perpendicular to that of the second magnet.

[0012] Optionally, the anti-shake drive assembly further includes an anti-shake coil connected to the base; the anti-shake coil and the anti-shake magnet group are arranged in a one-to-one correspondence; when the current loaded on the anti-shake coil changes, it is used to drive the anti-shake magnet group to move the moving frame in the horizontal direction.

[0013] Optionally, the focusing drive assembly includes a focusing coil connected to the carrier; the axial direction of the focusing coil is directly opposite at least one image stabilization magnet group; when the current applied to the focusing coil changes, it is used to drive the carrier to move along the optical axis.

[0014] Optionally, it also includes a magnetic conductive sheet, which is attached to the inner top surface; the magnetic conductive sheet interacts with the anti-shake magnet assembly to keep the adhesive block in continuous contact with the inner top surface; the movable frame is provided with a clearance groove; when the movable frame moves relative to the outer shell, the clearance groove is used to avoid the magnetic conductive sheet.

[0015] Optionally, it also includes an upper spring assembly and a lower spring assembly; the upper spring assembly has an inner end and an outer end; the outer end is fixed to the housing; the inner end is fixed to the movable frame; the lower spring assembly includes at least two mutually separated lower spring plates; the lower spring plates have a first end and a second end; the first end is fixed to the housing; the second end is fixed to the movable frame; both the upper spring assembly and the lower spring assembly are used to provide cushioning for the movable frame.

[0016] Optionally, the number of focusing coils is 2; the two focusing coils are connected in series or in parallel; the two focusing coils are electrically connected to the second ends of different lower spring plates respectively.

[0017] Secondly, the present invention provides a camera module, including a carrier driving device and a sensing unit as described in any one of the first aspects; the sensing unit is located on the base, the moving frame or the carrier; the sensing unit is used to detect the position parameters of the carrier.

[0018] Thirdly, the present invention provides an electronic device, including a processing unit and at least one carrier driving device as described in any one of the first aspects; the processing unit is electrically connected to the carrier driving device and is used to control the operation of the carrier driving device, including but not limited to image stabilization and autofocus functions.

[0019] Compared with existing technologies, the advantages of this invention are as follows: by setting adhesive blocks in the dispensing groove of the moving frame, connecting the adhesive blocks to the outer shell, and having the ball component directly abut against the inner top surface of the outer shell, impact resistance is provided while reducing the size of the lens drive device in the optical axis direction, and also reducing the number of components. This enables electronic devices equipped with this device to achieve a thinner and lighter design, meeting the demands of modern electronic products for compactness and portability. Attached Figure Description

[0020] Figure 1 An exploded structural diagram of a carrier driving device provided by this utility model;

[0021] Figure 2 A schematic diagram of the assembly structure of a carrier driving device provided by this utility model;

[0022] Figure 3 A schematic diagram of the assembly structure of a movable frame provided by this utility model;

[0023] Figure 4 A schematic diagram of the assembly structure of a camera module provided by this utility model;

[0024] Figure 5 This is a schematic diagram of the electrical connection relationship of an electronic device provided by this utility model.

[0025] Explanation of the reference numerals in the figure:

[0026] 1. Outer shell; 101. Magnetic conductive sheet; 2. Base; 3. Moving frame; 301. Glue dispensing groove; 302. Glue block; 303. Rolling groove; 304. Clearance groove; 4. Ball component;

[0027] 51. Helbeck array magnet group; 511. First magnet; 512. Second magnet; 513. Third magnet; 52. Multi-stage magnet; 521. Upper magnet section; 522. Lower magnet section; 531. First image stabilization coil; 532. Second image stabilization coil; 533. Third image stabilization coil; 54. Focusing coil; 6. Processing unit;

[0028] 7. Carrier; 71. Upper spring assembly; 72. Lower spring assembly; 721. First lower spring plate; 722. Second lower spring plate; 801. First sensor; 802. Second sensor. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but does not exclude other elements or objects.

[0030] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0031] In response to the problems existing in the current technology, such as Figure 1 As shown, the first embodiment of this utility model provides a carrier driving device, including: a shell 1, a base 2, a moving frame 3, a ball component 4, a carrier 7, an image stabilization driving assembly, and a focusing driving assembly; the shell 1 has an inner top surface (not shown) and side walls; the bottom end of the side wall is connected to the base 2; the moving frame 3 is located inside the shell 1, and the moving frame 3 is provided with a dispensing groove 301; the dispensing groove 301 is provided with an adhesive block 302, and the adhesive block 302 is connected to the shell 1; the ball component 4 directly rests on the inner top surface; the moving frame 7... When the moving frame 3 moves relative to the outer shell 1, the ball component 4 rolls relative to the inner top surface; the image stabilization drive assembly is disposed between the moving frame 3 and the side wall; the image stabilization drive assembly is used to drive the moving frame 3 in the horizontal direction to perform image stabilization movement; the carrier 7 is located inside the moving frame 3 and is used to support the lens; the focusing drive assembly is disposed between the moving frame 3 and the carrier 7; the focusing drive assembly is used to drive the carrier 7 along the optical axis direction to perform focusing movement; the optical axis direction is perpendicular to the horizontal direction.

[0032] In some specific embodiments, the number of ball components 4 is at least 3, and each ball component 4 protrudes from the moving frame at a consistent height.

[0033] In other specific embodiments, each ball component 4 comprises at least one ball. In some examples, each ball component 4 comprises one ball; in other examples, each ball component 4 comprises N balls, where N is a positive integer greater than 1. This embodiment increases the rolling support surface of the ball component 4 by setting N balls, making it less likely for dents to form on the rolling support surface when the device is subjected to external impact. Simultaneously, by setting multiple small-diameter balls, assembly space is further saved, facilitating a thinner design of the drive device in the optical axis direction.

[0034] In some specific embodiments, the top of the movable frame 3 is further provided with a roller groove 303. The roller groove 303 is used to accommodate the ball component 4.

[0035] It is worth noting that the horizontal direction refers to the X and Y directions in the figure, and the optical axis direction refers to the Z direction. This embodiment, by setting an adhesive block 302 within the dispensing groove 301 of the moving frame 3, connecting the adhesive block 302 to the outer shell 1, and having the ball component 4 directly rest against the inner top surface of the outer shell 1, provides impact resistance while reducing the size of the lens driving device in the optical axis direction, and also reducing the number of components. This allows electronic devices equipped with this device to achieve a thinner and lighter design, meeting the demands of modern electronic products for compactness and portability.

[0036] In some embodiments, the rubber block 302 is configured as a damping rubber block 302; the damping rubber block 302 is used to elastically connect the movable frame 3 and the inner top surface.

[0037] In some specific embodiments, the damping rubber block 302 is fixed within the dispensing groove 301. In other specific embodiments, the damping rubber block 302 is fixed to the inner top surface of the outer casing 1. In still other specific embodiments, damping rubber blocks 302 are fixed both within the dispensing groove 301 and on the inner top surface of the outer casing 1. The damping rubber block 302 fixed within the dispensing groove 301 and the damping rubber block 302 fixed on the inner top surface of the outer casing 1 abut against each other.

[0038] It is worth noting that this embodiment employs a design using damping rubber blocks for elastic connection. Whether applied alone in the dispensing groove, on the top surface of the housing, or in combination, this design effectively improves the stability and reliability of the anti-shake drive component. In particular, when the damping rubber blocks in the dispensing groove and on the top surface of the housing come into contact with each other, optimal shock absorption and support effects are achieved, while simplifying the assembly process and reducing manufacturing costs.

[0039] In some embodiments, the dispensing groove 301 opens toward the inner top surface; the height of the damping block 302 protruding from the moving frame 3 is greater than the height of the ball member 4 protruding from the moving frame 3, so that the damping block 302 applies an impact force to the inner top surface before the ball member 4.

[0040] It is worth noting that, in this embodiment, by setting the height of the damping rubber block 302 protruding from the moving frame 3 to be greater than the height of the ball component 4 protruding from the moving frame 3, the damping rubber block 302 can provide initial buffering when the moving frame 3 is subjected to external force impact, which helps to reduce the impact force on the ball component 4 and the moving frame 3 to avoid damage.

[0041] In some embodiments, the image stabilization drive assembly includes image stabilization magnet groups located on up to three directional sides of the moving frame 3; wherein at least one of the image stabilization magnet groups is a Helbeck array magnet group.

[0042] In some specific embodiments, the moving frame 3 has four horizontal sides. The image stabilization drive assembly includes image stabilization magnet assemblies located on three horizontal sides of the moving frame 3. In other specific embodiments, the image stabilization drive assembly includes image stabilization magnet assemblies located on two horizontal sides of the moving frame 3.

[0043] like Figure 2 As shown, in some embodiments, the anti-shake drive component includes a Hellbeck array magnet group 51 and two multi-level magnets 52; the two multi-level magnets 52 are respectively located at opposite ends of the moving frame 3; the multi-level magnets 52 are configured as multi-level magnetized magnets or multi-level superimposed magnets. The multi-level magnets 52 include an upper magnet portion 521 and a lower magnet portion 522.

[0044] It is worth noting that by employing the Hellbeck array magnet 51, this embodiment can achieve a greater magnetic field strength within a limited space, which is sufficient to overcome friction and improve the stability of the moving frame 3 in the horizontal direction. Thanks to the sufficiently dense magnetic field strength, the side of the moving frame 3 away from the Hellbeck array magnet 51 does not need to be equipped with a magnet, thereby avoiding magnetic interference on the side of the moving frame 3 without a magnet and improving the assembly compatibility of the carrier drive device.

[0045] In some specific embodiments, the upper magnet portion 521 and the lower magnet portion 522 of the multi-stage magnetized magnet are made from the same magnet. A non-magnetic region exists between the upper magnet portion 521 and the lower magnet portion 522. The multi-stage magnetized magnet in this embodiment is easy to assemble. The multi-stage magnetized magnet is manufactured by applying magnetic fields of different directions or intensities to different regions of the same magnet using a multi-stage magnetizing machine.

[0046] In other specific embodiments, the upper magnet portion 521 and the lower magnet portion 522 of the multi-level stacked magnet are different magnets. Since the upper magnet portion 521 and the lower magnet portion 522 of the multi-level stacked magnet in this embodiment are different magnets, this means they can be designed, manufactured, and adjusted independently. The magnetic field strength and distribution of each layer can be optimized according to specific needs to achieve optimal performance.

[0047] In some examples, the N pole of the upper magnet portion 521 faces the carrier 7, and the S pole of the lower magnet portion 522 faces the carrier 7. The upper magnet portion 521 and the lower magnet portion 522 are arranged along the optical axis.

[0048] In other examples, the Hellbeck array magnet group 51 is used to drive the moving frame 3 to move along the X direction. Two multi-stage magnets 52 are used to drive the moving frame 3 to move along the Y direction. In other examples, the Hellbeck array magnet group 51 is used to drive the moving frame 3 to move along the Y direction. Two multi-stage magnets 52 are used to drive the moving frame 3 to move along the X direction.

[0049] In some embodiments, the anti-shake drive assembly includes two Hellbeck array magnet groups 51; the two Hellbeck array magnet groups 51 are respectively located at adjacent ends of the moving frame 3.

[0050] In some examples, one of the Hellbeck array magnet groups 51 is used to drive the moving frame 3 to move along the X direction. Another Hellbeck array magnet group 51 is used to drive the moving frame 3 to move along the Y direction.

[0051] It is worth noting that by utilizing two Hellbeck array magnet groups to achieve independent and efficient driving in both the X and Y directions, the stability and response speed of the moving frame are ensured. Since the two sides of the moving frame 3 furthest from the Hellbeck array magnet 51 do not require magnets, magnetic interference is avoided on the sides of the moving frame 3 without magnets, further improving the assembly compatibility of the carrier driving device.

[0052] In some specific embodiments, the Helbeck array magnet group 51 is formed by stacking a first magnet 511, a second magnet 512, and a third magnet 513, with the second magnet 512 located between the first magnet 511 and the third magnet 513; the magnetization direction of the first magnet 511 is opposite to the magnetization direction of the third magnet 513; and the magnetization direction of the first magnet 511 is perpendicular to the magnetization direction of the second magnet 512.

[0053] In some examples, the S pole of the first magnet 511 faces the base 2, the S pole of the second magnet 512 faces the carrier 7, and the N pole of the third magnet 513 faces the base 2.

[0054] In some embodiments, the anti-shake drive assembly further includes an anti-shake coil connected to the base 2; the anti-shake coil and the anti-shake magnet group are arranged in a one-to-one correspondence; when the current loaded on the anti-shake coil changes, it is used to drive the anti-shake magnet group to move the moving frame 3 in the horizontal direction.

[0055] In some specific embodiments, when the image stabilization drive assembly includes two Hellbeck array magnet groups 51, the number of image stabilization coils is 2, which are respectively disposed on the bottom side of the two Hellbeck array magnet groups 51.

[0056] In other specific embodiments, when the image stabilization drive assembly includes a Hellbeck array magnet group 51 and two multi-stage magnets 52, the number of image stabilization coils is three, specifically a first image stabilization coil 531, a second image stabilization coil 532, and a third image stabilization coil 533. The second image stabilization coil 532 is disposed on the bottom side of the Hellbeck array magnet group 51. The first image stabilization coil 531 and the third image stabilization coil 533 are respectively disposed on the bottom sides of the two multi-stage magnets 52.

[0057] It is worth noting that the winding axis of the stabilization coils is all along the optical axis. Through the cooperation of the stabilization coils and the stabilization magnet assembly, precise position control of the moving frame is achieved, ensuring a highly efficient stabilization effect.

[0058] Please refer to Figure 1 In some embodiments, the focusing drive assembly includes a focusing coil 54 connected to the carrier 7; the axial direction of the focusing coil 54 is directly opposite at least one image stabilization magnet group; when the current loaded on the focusing coil 54 changes, it is used to drive the carrier 7 to move along the optical axis direction.

[0059] It is worth noting that in this embodiment, by aligning the focusing coil 54 axially with at least one image stabilization magnet group, the image stabilization drive assembly and the focusing drive assembly share the same image stabilization magnet group, which helps reduce the number of components, lowers assembly difficulty, and also facilitates the miniaturization of the carrier drive device.

[0060] In some examples, the winding axis of the focusing coil 54 is horizontal. There are two focusing coils 54, which can be connected in parallel or in series. The focusing coils 54 are located between the movable frame 3 and the multi-stage magnet 52.

[0061] like Figure 3As shown, in some embodiments, a magnetic conductive sheet 101 is also included, which is attached to the inner top surface. The magnetic conductive sheet 101 interacts with the anti-shake magnet assembly to keep the adhesive block 302 in continuous contact with the inner top surface. The moving frame 3 is provided with a clearance groove 304. When the moving frame 3 moves relative to the outer shell 1, the clearance groove 304 is used to avoid the magnetic conductive sheet 101. In this embodiment, by setting the magnetic conductive sheet 101 to interact with the driving magnet to keep the adhesive block 302 in continuous contact with the inner top surface, the ball component 4 can be prevented from detaching.

[0062] In some specific embodiments, the number of magnetic conductive sheets 101 is the same as the number of anti-shake drive components. The dispensing groove 301, the rolling groove 303, and the clearance groove 304 are not connected to each other, so that the adhesive block 302, the ball component 4, and the magnetic conductive sheets 101 each function independently.

[0063] In other specific embodiments, the clearance groove 304 is provided in a one-to-one correspondence with the magnetic conductive sheet 101. The size of the clearance groove 304 is larger than that of the magnetic conductive sheet 101. In this embodiment, the design of the clearance groove ensures the smooth movement of the moving frame and reduces friction and wear.

[0064] Under the action of the magnetic conductive sheet 101, the resultant force provided by the anti-shake magnet assembly to the moving frame 3 passes through the center of the polygon formed by connecting the centers of at least three of the spherical components 4. This arrangement ensures that the spherical components 4 are stably supported on the inner top surface in all orientations and also helps to balance the force on the spherical components 4.

[0065] In some embodiments, an upper spring assembly 71 and a lower spring assembly 72 are also included; the upper spring assembly 71 has an inner end and an outer end; the outer end is fixed to the housing 1; the inner end is fixed to the movable frame 3; the lower spring assembly 72 includes at least two mutually separated lower spring plates; the lower spring plates have a first end and a second end; the first end is fixed to the housing 1; the second end is fixed to the movable frame 3; both the upper spring assembly 71 and the lower spring assembly 72 are used to provide cushioning for the movable frame 3.

[0066] In some specific embodiments, the upper spring assembly 71 is a single spring sheet. The lower spring assembly 72 includes a first lower spring sheet 721 and a second lower spring sheet 722 that are separated from each other. In some examples, the first lower spring sheet 721 and the second lower spring sheet 722 are fixedly connected by an insulating member, which can be integrally formed with the lens. The insulating member is used to keep the first lower spring sheet 721 and the second lower spring sheet 722 moving synchronously. This embodiment is applicable to autofocus (AF) open-loop motors, i.e., scenarios where an AF position sensor is not provided.

[0067] In some specific embodiments, the upper spring assembly 71 is a single spring sheet. The lower spring assembly 72 includes four separate spring sheets. This embodiment is applicable to AF closed-loop motors, i.e., scenarios where an AF position sensor is installed.

[0068] In some other specific embodiments, the upper spring assembly 71 is made by laser engraving lines on the entire spring.

[0069] In some specific embodiments, the upper spring assembly 71 is configured as a multi-layer spring, including an insulating layer and a conductive layer to conduct multiple circuits.

[0070] In some embodiments, the number of focusing coils 54 is 2; the two focusing coils 54 are connected in series or in parallel; the two focusing coils 54 are electrically connected to the second ends of different lower spring plates respectively.

[0071] In other specific embodiments, the two focusing coils 54 are electrically connected to the first lower spring plate 721 and the second lower spring plate 722, respectively. When the two focusing coils 54 are connected in series, the first lower spring plate 721 and the second lower spring plate 722 are connected to the same circuit. When the two focusing coils 54 are connected in parallel, the first lower spring plate 721 and the second lower spring plate 722 are connected to different circuits.

[0072] In some examples, when the two focusing coils 54 are connected in series, both focusing coils 54 are electrically connected to the upper spring assembly 71. In other examples, when the two focusing coils 54 are connected in series, the two focusing coils 54 are electrically connected via additional wiring.

[0073] The above embodiment enhances the total electromagnetic force by connecting two focusing coils 54 in series, making it suitable for applications requiring greater driving force. Connecting the two focusing coils 54 in parallel reduces the total resistance and increases the current, enabling faster generation of electromagnetic force, making it suitable for applications requiring rapid response. Whether connected in series or parallel, the two coils can operate synchronously or independently, improving system stability and flexibility.

[0074] like Figure 4 As shown, the second embodiment provides a camera module, including the carrier driving device and sensing unit described in the above embodiments; the sensing unit is located on the base 2, the moving frame 3 or the carrier 7; the sensing unit is used to detect the position parameters of the carrier 7.

[0075] In some specific embodiments, the sensing unit includes a first sensor 801, a second sensor 802, and a third sensor (not shown). The first sensor 801 and the second sensor 802 are mounted on the base; the third sensor is mounted on the carrier. A Hall magnet is mounted on the movable frame. The first sensor 801 is electrically connected to a first image stabilization coil 531 and is used to detect the position of the carrier 7 in the X direction based on the current applied to the first image stabilization coil 531. The second sensor 802 is electrically connected to a second image stabilization coil 532 and is used to detect the position of the carrier 7 in the Y direction based on the current applied to the second image stabilization coil 532. The third sensor is electrically connected to a focusing coil 54 and is used to detect the position of the carrier 7 in the Z direction based on the current applied to the focusing coil 54.

[0076] In some examples, the camera module can be integrated into a smartphone camera, digital camera, surveillance camera, or industrial robot vision system.

[0077] This embodiment uses three sensors to detect the position of the carrier in the X, Y, and Z directions, ensuring high-precision positioning and control. The real-time position information provided by the sensors allows the system to make dynamic adjustments, improving its adaptability and response speed. Multi-axis control and real-time feedback mechanisms ensure the stability of the carrier in all directions. By directly connecting the sensors to the corresponding image stabilization and focusing coils, the design of the control system is simplified, reducing complex wiring and interfaces.

[0078] like Figure 5 As shown, the third embodiment provides an electronic device, including a processing unit 6 and at least one carrier driving device as described in the above embodiments; the processing unit 6 is electrically connected to the carrier driving device and is used to control the operation of the carrier driving device, including but not limited to image stabilization and autofocus functions.

[0079] In some specific embodiments, the processing unit 6 is electrically connected to the image stabilization coil and the focus coil 54. In some examples, the processing unit 6 is a processor.

[0080] The processor in this embodiment can be an integrated circuit chip. In implementation, the processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices. Besides image stabilization and focusing, the processor can also integrate other functions, such as image processing and video encoding, to further improve the overall performance of the device.

[0081] In some embodiments, multiple carrier drive devices work together to achieve precise image stabilization and autofocus over a wider range, ensuring uniform image stabilization across the entire imaging area. Independent adjustments can be made based on the specific conditions of different areas (such as object speed, lighting conditions, etc.) to improve local focus accuracy and image stabilization performance.

[0082] Multiple carrier drive units can support higher resolution holographic imaging systems, with each unit responsible for a small portion of the image area. This allows for precise image stabilization and focus adjustments for each small area, ensuring high resolution and sharpness of the entire holographic image. Multiple units can operate simultaneously or at preset time intervals, accelerating image acquisition and processing, making it suitable for high-speed holographic photography scenarios.

[0083] By deploying carrier-driven devices at different locations and angles, shooting and focusing can be performed from multiple perspectives. This enables multi-angle and multi-view holographic shooting, suitable for constructing 3D holographic models or panoramic holographic images.

[0084] In some examples, the electronic device is a smartphone, digital camera, security surveillance camera, medical imaging equipment, industrial robot vision system, virtual reality (VR) / augmented reality (AR) device, or drone camera.

[0085] Although the embodiments of this utility model have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations fall within the scope and spirit of this utility model as described in the claims. Moreover, the utility model described herein may have other embodiments and can be implemented or realized in various ways.

Claims

1. A carrier driving device, characterized in that, include: Housing, base, moving frame, ball component, carrier, image stabilization drive assembly, and focus drive assembly; The outer casing has an inner top surface and side walls; the bottom end of the side walls is connected to the base; The movable frame is located inside the outer shell, and the movable frame is provided with a dispensing groove; the dispensing groove is provided with an adhesive block, and the adhesive block is connected to the outer shell; The ball component directly rests against the inner top surface; when the movable frame moves relative to the outer shell, the ball component rolls relative to the inner top surface. The anti-shake drive component is disposed between the moving frame and the side wall; the anti-shake drive component is used to drive the moving frame in the horizontal direction to perform anti-shake movement; The carrier is located inside the movable frame and is used to support the lens; the focusing drive assembly is disposed between the movable frame and the carrier; the focusing drive assembly is used to drive the carrier along the optical axis to perform focusing motion; the optical axis is perpendicular to the horizontal direction.

2. The apparatus of claim 1, wherein, The rubber block is configured as a damping rubber block; the damping rubber block is used to elastically connect the movable frame and the inner top surface.

3. The apparatus of claim 2, wherein, The dispensing groove opens toward the inner top surface; the height of the damping rubber block protruding from the moving frame is greater than the height of the ball component protruding from the moving frame, so that the damping rubber block applies impact force to the inner top surface before the ball component.

4. The apparatus of claim 1, wherein, The image stabilization drive assembly includes image stabilization magnet groups located on up to three directional sides of the moving frame; wherein at least one of the image stabilization magnet groups is a Helbeck array magnet group.

5. The apparatus of claim 4, wherein, The image stabilization drive component includes a Heilbeck array magnet group and two multi-level magnets; The two multi-level magnets are located at opposite ends of the movable frame; the multi-level magnets are configured as multi-level magnetized magnets or multi-level superimposed magnets.

6. The apparatus of claim 4, wherein, The image stabilization drive component includes two groups of Hellbeck array magnets; Two Helbeck array magnet groups are located at adjacent ends of the moving frame.

7. The apparatus of any one of claims 4-6, wherein, The Helbeck array magnet group is formed by stacking a first magnet, a second magnet, and a third magnet, with the second magnet located between the first magnet and the third magnet; the magnetization direction of the first magnet is opposite to that of the third magnet; the magnetization direction of the first magnet is perpendicular to that of the second magnet.

8. The apparatus of claim 4, wherein, The anti-shake drive assembly also includes an anti-shake coil connected to the base; the anti-shake coil and the anti-shake magnet group are arranged in a one-to-one correspondence; when the current loaded on the anti-shake coil changes, it is used to drive the anti-shake magnet group to move the moving frame in the horizontal direction.

9. The apparatus of claim 4, wherein, The focusing drive assembly includes a focusing coil connected to the carrier; the axis of the focusing coil is directly opposite at least one image stabilization magnet group; when the current applied to the focusing coil changes, it is used to drive the carrier to move along the optical axis.

10. The apparatus of claim 4, wherein, It also includes a magnetic conductive sheet, which is attached to the inner top surface; the magnetic conductive sheet interacts with the anti-shake magnet assembly to keep the adhesive block in continuous contact with the inner top surface; The movable frame is provided with a clearance groove; when the movable frame moves relative to the outer shell, the clearance groove is used to avoid the magnetic sheet.

11. The apparatus of claim 9, wherein, It also includes an upper spring assembly and a lower spring assembly; The upper spring assembly has an inner end and an outer end; the outer end is fixed to the outer shell; the inner end is fixed to the movable frame; The lower spring assembly includes at least two mutually separated lower spring plates; each lower spring plate has a first end and a second end; the first end is fixed to the housing; and the second end is fixed to the movable frame. Both the upper spring assembly and the lower spring assembly are used to provide cushioning for the moving frame.

12. The apparatus of claim 11, wherein, The number of focusing coils is 2; the two focusing coils are connected in series or in parallel; the two focusing coils are electrically connected to the second ends of different lower spring plates respectively.

13. A camera module, characterized in that, Includes the carrier driving device and sensing unit as described in any one of claims 1 to 12; The sensing unit is located on the base, the movable frame, or the carrier; the sensing unit is used to detect the position parameters of the carrier.

14. An electronic device, comprising: Includes a processing unit and at least one carrier driving device according to any one of claims 1 to 12; The processing unit is electrically connected to the carrier driving device and is used to control the operation of the carrier driving device, including but not limited to image stabilization and autofocus functions.

Images