Driving device, camera module and electronic equipment

Abstract

The invention discloses a driving device, a camera module and electronic equipment, and belongs to the technical field of electronic equipment. The driving device comprises a machine shell, a movable frame, a first driving assembly and a second driving assembly. The shell is provided with two mounting surfaces which are arranged at an interval; in the thickness direction of the driving device, the moving frame is located between the two mounting surfaces, and the moving frame is used for bearing a to-be-driven device; the first driving assembly is used for driving the moving frame to move in the first direction relative to the machine shell. The second driving assembly is used for driving the moving frame to move along a second direction relative to the shell, and an included angle is formed between the first direction and the second direction; wherein the first driving assembly comprises a first magnetic assembly and a first coil assembly, the first magnetic assembly is matched with the first coil assembly, one of the mounting surface and the movable frame is provided with the first magnetic assembly, and the other one of the mounting surface and the movable frame is provided with the first coil assembly. The driving force required by the driving device for driving the to-be-driven device (such as an optical device as a lens or an image sensor) can be met.

Description

Technical Field

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

[0002] With the continuous development of photography and videography technology, the demand for sharp images is increasing. To utilize lenses with higher optical performance within limited space, especially those with larger apertures and higher image quality, effective optical image stabilization (OIS) is essential. These lenses typically require stabilization over a long stroke to maintain image stability and sharpness. In practical applications, voice coil motors have become the mainstream stabilization solution. However, due to space constraints, the size of the motor itself is limited, which can lead to insufficient driving force when driving lenses with better optical performance, larger apertures, or higher image quality for long-stroke OIS. Summary of the Invention

[0003] This application provides a driving device, a camera module, and an electronic device, and addresses the issue of insufficient driving force in related technologies.

[0004] The technical solution is as follows:

[0005] A first aspect of this application provides a driving device, comprising: a housing, a movable frame, a first driving assembly, and a second driving assembly; the housing has two spaced-apart mounting surfaces; in the thickness direction of the driving device, the movable frame is located between the two mounting surfaces and is used to carry a device to be driven; the first driving assembly is used to drive the movable frame to move relative to the housing along a first direction; the second driving assembly is used to drive the movable frame to move relative to the housing along a second direction, wherein there is an included angle between the first direction and the second direction; wherein the first driving assembly includes a first magnetic assembly and a first coil assembly, the first magnetic assembly cooperating with the first coil assembly, and the first magnetic assembly is mounted on one of the mounting surfaces and the movable frame, and the first coil assembly is mounted on the other.

[0006] By adopting the above technical solution, the first magnetic components are mounted on two mounting surfaces, while the first coil component is mounted on the movable frame. This enhances the magnetic field strength, allowing the first coil component to cut the magnetic field lines between the two first magnetic components. This, in turn, helps to meet the driving force required by the driving device to drive the driven device (such as an optical device like a lens or image sensor). Alternatively, the first coil component is mounted on both mounting surfaces, while the first magnetic component is mounted on the movable frame. In this way, the two first coil components cut the magnetic field lines separately, which also helps to meet the driving force required by the driving device to drive the driven device (such as an optical device like a lens or image sensor).

[0007] In some implementations, the second driving component includes a second magnetic component and a second coil component, the second magnetic component cooperating with the second coil component;

[0008] The second magnetic assembly is mounted on one of the mounting surfaces and the movable frame, and the second coil assembly is mounted on the other.

[0009] By adopting the above technical solution, second magnetic components are installed on two mounting surfaces, while a second coil component is installed on the moving frame. This enhances the magnetic field strength, allowing the second coil component to cut the magnetic field lines between the two second magnetic components. This, in turn, helps to meet the driving force required by the driving device to drive the driven component (such as a lens or image sensor). Alternatively, the second coil component is installed on both mounting surfaces, while the second magnetic component is installed on the moving frame. In this way, the two second coil components cut the magnetic field lines separately, further enhancing the driving force required by the driving device to drive the driven component (such as a lens or image sensor). The combination of the first and second driving components ensures that the driving force required for the driving device to move in two different directions can be met.

[0010] In some implementations, a first magnetic component is fixed on each of the two mounting surfaces, and a first coil component is fixed on the movable frame.

[0011] By adopting the above technical solution, the magnetic field strength is enhanced, and the first coil assembly can cut the magnetic field lines between the two first magnetic assemblies, which in turn helps to meet the driving force required by the driving device to drive the driven device (such as an optical device such as a lens or image sensor).

[0012] In some implementations, the first coil assembly includes a first coil and a first magnetic yoke, the first coil having a coil hole;

[0013] The first magnetic component includes a first magnet, which is a multipole magnet or a unipole magnet.

[0014] By adopting the above technical solution, the presence of the coil hole allows the magnetic field to act more concentratedly on a certain part of the first coil; this design also helps to reduce energy loss and improve the overall performance of the system. When the first magnet is a multi-pole magnet, the driving device can provide a more uniform magnetic field or a stronger local magnetic field within a limited space, thereby improving the driving force; while using a single-pole magnet as the first magnet can meet different design requirements.

[0015] In some implementations, a first magnetic yoke is provided at the center of the coil hole of the first coil;

[0016] And / or, a plurality of first magnetic yokes are provided in the coil hole of the first coil, and at least two first magnetic yokes are spaced apart in the length direction of the first coil, the length direction of the first coil being parallel to the second direction;

[0017] And / or, the first coil includes an outer coil portion and an inner coil portion connected in series, the outer coil portion of the first coil is sleeved outside the inner coil portion of the first coil, and a first magnetic yoke is provided between the outer coil portion and the inner coil portion of the first coil, the first magnetic yoke located between the outer coil portion and the inner coil portion of the first coil is annular;

[0018] And / or, the first coil includes two coil layers connected in series, the two coil layers of the first coil are stacked in the thickness direction of the driving device, and a first magnetic yoke is disposed between the two coil layers of the first coil, the first magnetic yoke located between the two coil layers of the first coil is in the shape of a ring.

[0019] By adopting the above technical solution, the first magnetic yoke attracts the first magnet so that the movable frame can be attached to the housing, but the movable frame moves along the first direction when the first coil assembly is energized; the design requirements under different conditions can be met by using different positions and shapes of the first magnetic yoke.

[0020] In some implementations, a second magnetic component is fixed on each of the two mounting surfaces, and a second coil component is fixed on the movable frame.

[0021] By adopting the above technical solution, the second coil assembly can cut the magnetic field lines between the two second magnetic assemblies, which in turn helps to meet the driving force required by the driving device to drive the driven device (such as an optical device such as a lens or image sensor).

[0022] In some implementations, the second coil assembly includes a second coil and a second magnetic yoke, the second coil having a coil hole;

[0023] The second magnetic component includes a second magnet, which is a multipole magnet or a unipole magnet.

[0024] By adopting the above technical solution, the presence of the coil hole allows the magnetic field to act more concentratedly on a certain part of the second coil; this design also helps to reduce energy loss and improve the overall performance of the system. When the second magnet is a multi-pole magnet, the driving device can provide a more uniform magnetic field or a stronger local magnetic field within a limited space, thereby improving the driving force; while using a single-pole magnet as the second magnet can meet different design requirements.

[0025] In some implementations, a second magnetic yoke is provided at the center of the coil hole of the second coil;

[0026] And / or, a plurality of second magnetic yokes are provided in the coil hole of the second coil, and at least two second magnetic yokes are spaced apart in the length direction of the second coil, the length direction of the second coil being parallel to the first direction;

[0027] And / or, the second coil includes an outer coil portion and an inner coil portion connected in series, the outer coil portion of the second coil is sleeved outside the inner coil portion of the second coil, and a second magnetic yoke is provided between the outer coil portion of the second coil and the inner coil portion of the second coil, the second magnetic yoke located between the outer coil portion of the second coil and the inner coil portion of the second coil is ring-shaped;

[0028] And / or, the second coil includes two coil layers connected in series, the two coil layers of the second coil are stacked in the thickness direction of the driving device, and a second magnetic yoke is disposed between the two coil layers of the second coil, the second magnetic yoke located between the two coil layers of the second coil is in the shape of a ring.

[0029] By adopting the above technical solution, the second magnetic yoke attracts the second magnet, so that the moving frame can be attached to the housing, but the moving frame moves along the second direction when the second coil assembly is energized; the design requirements under different conditions can be met by using the different positions and shapes of the second magnetic yoke.

[0030] In some implementations, the two mounting surfaces are designated as the first mounting surface and the second mounting surface, respectively.

[0031] In the thickness direction of the driving device, the distance between the first coil assembly and the first magnetic assembly located on the first mounting surface is smaller than the distance between the first coil assembly and the first magnetic assembly located on the second mounting surface;

[0032] The movable frame has a plate-like structure, and the first coil assembly is located on the side of the movable frame facing the first mounting surface.

[0033] By adopting the above technical solution, the first coil assembly is biased towards the first magnetic assembly on the first mounting surface in the thickness direction of the driving device, which helps to ensure that the moving frame and the housing can be attracted to each other.

[0034] In some implementations, the two mounting surfaces are designated as the first mounting surface and the second mounting surface, respectively.

[0035] In the thickness direction of the driving device, the distance between the second coil assembly and the second magnetic assembly located on the first mounting surface is less than the distance between the second coil assembly and the second magnetic assembly located on the second mounting surface;

[0036] The movable frame has a plate-like structure, and the second coil assembly is located on the side of the movable frame facing the first mounting surface.

[0037] By adopting the above technical solution, the second coil assembly is biased towards the second magnetic assembly on the first mounting surface in the thickness direction of the driving device, which helps to ensure that the moving frame and the housing can be attracted to each other.

[0038] In some implementations, the housing includes a base and an outer shell, which are fixedly connected.

[0039] Of the two mounting surfaces, one is located on the base and the other is located on the housing.

[0040] The mounting surface on the base is the first mounting surface, and the mounting surface on the outer casing is the second mounting surface.

[0041] By adopting the above technical solution, the outer shell and base can provide protection and support for the moving frame, the first drive assembly and the second drive assembly in the drive device.

[0042] In some implementations, the drive unit also includes an intermediate support, a first roller, and a second roller;

[0043] In the thickness direction of the drive unit, the intermediate support is located between the moving frame and the base;

[0044] The intermediate support and the movable frame move together relative to the housing in the second direction;

[0045] The intermediate support is movably connected to the base, and the intermediate support is movably connected to the movable frame. The first roller is located between the intermediate support and the base, and the second roller is located between the intermediate support and the movable frame.

[0046] By employing the above technical solution, the intermediate support is sandwiched between the moving frame and the base, which facilitates the decoupling of the moving frame's movement in the first direction and its movement in the second direction. This reduces or eliminates their mutual influence, thereby improving the overall performance, stability, and flexibility of the drive device, and enhancing the long-stroke optical image stabilization effect of lenses with large apertures or high mass. Because of the intermediate support, the first roller can be conveniently positioned between the intermediate support and the base, and the second roller between the intermediate support and the moving frame. This reduces or eliminates the influence between the movements of the first and second rollers, further improving the overall performance, stability, and flexibility of the drive device, and enhancing the long-stroke optical image stabilization effect of lenses with large apertures or high mass. Furthermore, the first coil assembly is biased towards the first magnetic component on the first mounting surface in the thickness direction of the drive device, and the second coil assembly is biased towards the second magnetic component on the first mounting surface in the thickness direction of the drive device. This ensures that the second roller is held between the intermediate support and the moving frame, and the first roller is held between the intermediate support and the base, guaranteeing that the moving frame can move relative to the intermediate support, and that the intermediate support and the moving frame move together relative to the base.

[0047] In some implementations, the first roller is a ball or a sliding shaft; the second roller is a ball or a sliding shaft.

[0048] By employing the above technical solutions, the ball bearings provide low-friction support and guidance during motion, reducing friction and vibration, providing precise movement control, and ensuring smooth displacement. The sliding shaft design ensures stability and accuracy during long-stroke motion.

[0049] In some implementations, the intermediate support includes a first rod structure, a second rod structure, and a third rod structure. The length direction of the first rod structure is parallel to the length direction of the third rod structure, the length direction of the second rod structure is perpendicular to the length direction of the first rod structure, and the two ends of the length direction of the second rod structure are connected to the first rod structure and the second rod structure, respectively.

[0050] By adopting the above technical solution, the intermediate support uses a combination of a first rod structure, a second rod structure, and a third rod structure. This makes one side of the intermediate support open in the length direction, which helps to avoid other components of the drive device and reduces interference.

[0051] In some implementations, the drive unit also includes a stiffening plate structure, with at least one of the housing, the moving frame, and the intermediate support having the stiffening plate structure embedded inside; the stiffening plate structure is made of metal.

[0052] By adopting the above technical solution, the structural strength of any of the housing, moving frame, and intermediate support can be improved by using the rib plate structure, thereby increasing the service life of the drive device and providing stability for supporting lenses with larger mass.

[0053] In some implementations, the mobile frame is provided with an installation area, the installation area has an installation side, a first drive component is located on the installation side, and a second drive component is located on the installation side;

[0054] The mounting side includes a first mounting side and a second mounting side, and the direction from the first mounting side to the second mounting side is parallel to the length direction of the drive device;

[0055] The mounting area includes a mounting sub-area, which includes a hole structure for mounting the device to be driven.

[0056] The orthographic projection of the first driving component in the first plane is the first projection, the orthographic projection of the second driving component in the first plane is the second projection, and the orthographic projection of the hole structure in the first plane is the third projection. The first plane is parallel to the first direction and the first plane is parallel to the second direction.

[0057] The first projection and the third projection in the second plane do not coincide. The second projection and the third projection in the second plane do not coincide. The second plane is parallel to the length direction of the driving device and perpendicular to the first plane. The length direction of the driving device is parallel to the first direction or the length direction of the driving device is parallel to the second direction.

[0058] By adopting the above technical solution, the first and second drive components responsible for movement in different directions are installed on the mounting side, and the direction from the first mounting side to the second mounting side is parallel to the length direction of the drive device. The orthographic projections of the first projection and the third projection in the second plane do not coincide, and the orthographic projections of the second projection and the third projection in the second plane do not coincide. This makes the first and second drive components distributed in the length direction of the drive device, which helps to reduce the overall size of the drive device in the width direction. This allows the drive device to meet the driving force required to drive the driven device (such as an optical device like a lens or image sensor) while being limited in size in the width direction.

[0059] In some implementations, the first driving component is located on the first mounting side, and the second driving component is located on the second mounting side;

[0060] Alternatively, both the first drive component and the second drive component are located on the first mounting side;

[0061] Alternatively, both the first drive component and the second drive component are located on the second mounting side;

[0062] Alternatively, a first drive assembly and a second drive assembly are respectively provided on the first mounting side and the second mounting side. The whole formed by the first drive assembly and the second drive assembly on the first mounting side is centrally symmetrical or axially symmetrical with the whole formed by the first drive assembly and the second drive assembly on the second mounting side.

[0063] By adopting the above technical solution, the first drive component and the second drive component are distributed on the installation side, which can meet different needs, such as the balance of the movement of the mobile frame in different directions, the balance of the overall mass of the drive device, the requirement of the driving force of the drive device in different directions, the installation position of the drive device in the electronic device, and the space requirements in a single direction in the electronic device.

[0064] In some implementations, the distance between the center of the hole structure and one width side of the drive device is greater than the distance between the center of the hole structure and the other width side of the drive device.

[0065] By adopting the above technical solution, the first driving component and the second driving component are arranged in the length direction of the driving device. In this way, when the first driving component and the second driving component are distributed on the installation side, the installation position of the driving device in the electronic device and the space requirements in a single direction in the electronic device can be met.

[0066] In some implementations, the two mounting surfaces and the movable frame are arranged at intervals in the thickness direction of the drive unit;

[0067] The first direction and the second direction are perpendicular to each other, and the first direction and the second direction are respectively perpendicular to the thickness direction of the driving device.

[0068] By adopting the above technical solution, it is beneficial to arrange a first driving component and a second driving component with an appropriate driving force in the driving device to meet the needs of driving the device to be driven, such as meeting the driving force required for long-stroke optical image stabilization of lenses with large apertures or large mass.

[0069] In some implementations, the length of the drive device is greater than the width of the drive device;

[0070] Alternatively, the length of the drive unit is equal to the width of the drive unit.

[0071] By adopting the above technical solution, the length of the driving device is greater than its width. Combined with the distribution design of the first and second driving components, this helps to reduce the size of the driving device and meets the driving force required for long-stroke optical image stabilization of the driven device (e.g., lenses with large apertures and / or large mass). The length of the driving device is equal to its width, and with the cooperation of at least two first magnetic components and at least two second magnetic components, the driving force required for long-stroke optical image stabilization of the driven device (e.g., lenses with large apertures and / or large mass) can be met.

[0072] In some implementations, the first direction is parallel to the length direction of the driving device, and the second direction is parallel to the width direction of the driving device;

[0073] Alternatively, the first direction is parallel to the width direction of the drive device, and the second direction is parallel to the length direction of the drive device.

[0074] By adopting the above technical solution, the first direction is parallel to the length direction of the driving device, and the second direction is parallel to the width direction of the driving device. Thus, the first driving component drives the moving frame to move along the length direction of the driving device, and the second driving component can drive the moving frame to move along the width direction of the driving device. Alternatively, the first direction can be parallel to the width direction of the driving device, and the second direction to the length direction of the driving device. This allows for the fulfillment of various design requirements.

[0075] In some implementations, the second driving component includes a second magnetic component and a second coil component, the second magnetic component cooperating with the second coil component;

[0076] The first coil assembly is fixed on each of the two mounting surfaces, and the first magnetic assembly is fixed on the movable frame;

[0077] The second coil assembly is fixed on each of the two mounting surfaces, and the second magnetic assembly is fixed on the movable frame.

[0078] By adopting the above technical solution, the two first coil components cut the magnetic field lines respectively, and the two second coil components cut the magnetic field lines respectively, which helps to meet the driving force required by the driving device to drive the driven device (such as optical devices such as lenses or image sensors).

[0079] A second aspect of this application provides a camera module, which includes: a lens and a driving device as described in any of the above implementations, wherein the lens is fixedly connected to a movable frame;

[0080] The optical axis of the lens is perpendicular to the first direction, and the optical axis of the lens is perpendicular to the second direction.

[0081] By adopting the above technical solution, the application of the driving device to the camera module can help meet the driving force required by the driving device to drive the lens.

[0082] A third aspect of this application provides an electronic device, which includes a housing and a camera module as described above. The camera module is mounted on the housing, wherein a lens hole is provided on the housing, and the lens is opposite to the lens hole.

[0083] By adopting the above technical solution, the application of camera modules to electronic devices can help meet the driving force required by the driving device to drive the lens. Attached Figure Description

[0084] Figure 1 This is a front view of the electronic device provided in the embodiments of this application;

[0085] Figure 2This is a rear view of the electronic device provided in the embodiments of this application;

[0086] Figure 3 This is a schematic diagram of the structure of the camera module provided in the embodiments of this application;

[0087] Figure 4 This is a schematic diagram of the structure of the driving device provided in the embodiments of this application;

[0088] Figure 5 yes Figure 4 Another structural diagram from a different perspective;

[0089] Figure 6 It is along Figure 5 Sectional view of line AA in the middle;

[0090] Figure 7 This is an exploded view of the driving device provided in the embodiments of this application;

[0091] Figure 8 This is a state diagram showing the cooperation between the first coil assembly and the second coil assembly in the first form of the embodiments of this application;

[0092] Figure 9 This is a state diagram showing the cooperation between the first coil assembly and the second coil assembly in the second form of the embodiments of this application;

[0093] Figure 10 This is a state diagram showing the cooperation between the first coil assembly and the second coil assembly in the third form of the embodiments of this application;

[0094] Figure 11 This is a state diagram showing the cooperation between the first coil assembly and the second coil assembly in the fourth form of the embodiments of this application;

[0095] Figure 12 This application provides a schematic diagram of the drive device without a housing;

[0096] Figure 13 This is a schematic diagram of the structure of the mobile frame in an embodiment of this application;

[0097] Figure 14 This is a schematic diagram of the structure of the intermediate support provided in the embodiment of this application;

[0098] Figure 15 This is a structural schematic diagram of the intermediate support provided in the embodiments of this application from another perspective;

[0099] Figure 16 This is a schematic diagram of the base structure in an embodiment of this application;

[0100] Figure 17 This is a schematic diagram of the stiffener structure in the embodiments of this application;

[0101] Figure 18 This is a schematic diagram of the first positional relationship between the first driving component, the second driving component, and the hole structure in an embodiment of this application;

[0102] Figure 19 yes Figure 18 Top view;

[0103] Figure 20 This is a schematic diagram of the second positional relationship between the first driving component, the second driving component, and the hole structure in an embodiment of this application;

[0104] Figure 21 This is a structural schematic diagram showing a third positional relationship between the first driving component, the second driving component, and the hole structure provided in the embodiments of this application;

[0105] Figure 22 This is a schematic diagram of a fourth positional relationship between the first driving component, the second driving component, and the hole structure provided in the embodiments of this application;

[0106] Figure 23 This is a structural schematic diagram showing the fifth positional relationship between the first driving component, the second driving component, and the hole structure provided in the embodiments of this application;

[0107] Figure 24 This is a simplified structural diagram of another driving device provided in the embodiments of this application.

[0108] The meanings of the various symbols in the attached icons are as follows:

[0109] 101. Housing; 102. Display screen; 103. Frame; 104. Back cover;

[0110] 200. Camera module; 201. Driving device; 202. Lens;

[0111] 300. Housing; 301. Movable frame; 302. Receiving cavity; 303. Housing through hole; 304. First drive assembly; 305. Second drive assembly; 306. Mounting surface; 307. First magnetic assembly; 308. First coil assembly; 309. Second magnetic assembly; 310. Second coil assembly; 311. Mounting area; 312. Mounting sub-area; 313. Hole structure; 314. Base; 315. Outer shell; 316. Main body; 317. Protrusion; 318. Intermediate support; 319. Rib structure; 320. First roller; 321. Second roller; 322. First coil; 323. First magnetic yoke; 324. Coil hole; 325. First magnet; 326. Second coil; 327. Second magnetic yoke; 328. Second magnet; 329. Third magnetic yoke; Magnetic yoke; 330, First circuit board; 331, Through hole; 332, First sensing element; 333, Second sensing element; 334, Outer ring; 335, Inner ring; 336, Coil layer; 337, First baffle; 338, First limiting groove; 339, First winding post; 340, Second winding post; 341, Shaft hole; 342, First annular groove; 343, Second annular groove; 344, First rod structure; 345, Second rod structure; 346, Third rod structure; 347, Second limiting groove; 348, Second baffle; 349, First groove; 350, Second groove; 351, Base through hole; 352, Strip structure; 353, Mounting side; 354, First mounting side; 355, Second mounting side; 356, First side edge; 357, Second side edge. Detailed Implementation

[0112] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0113] It should be understood that "multiple" as mentioned in this application refers to two or more. In the description of this application, unless otherwise stated, " / " indicates "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist, for example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, to facilitate a clear description of the technical solutions of this application, the terms "first," "second," etc., are used to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and that "first," "second," etc., do not necessarily imply differences. The terms "comprising," "including," and "having" are used interchangeably in this application. The terms "comprising," "including," and "having" indicate inclusion, but are not necessarily limited to the described things.

[0114] The driving device, camera module, and electronic device provided in the embodiments of this application will be explained in detail below.

[0115] Figure 1 This is a front view of the electronic device provided in the embodiments of this application. Figure 2 This is a rear view of the electronic device provided in the embodiments of this application, in conjunction with... Figure 1 and Figure 2 As shown, in one or more embodiments, the electronic device in this application includes a housing 101 and a camera module 200, with the camera module 200 mounted on the housing 101. The electronic device can be a mobile phone, tablet computer, laptop computer, wearable device, automotive-related electronic device, or any other device with photography or video recording capabilities. Wearable devices can be smartwatches, VR (Virtual Reality) wearable devices, etc. Of course, the electronic device can also be other devices requiring optical image stabilization to compensate for camera module shake, such as drones or intelligent robots.

[0116] The mobile phone can be a candybar phone or a flip phone. Exemplarily, the electronic device in this application embodiment is described using a mobile phone as an example. The electronic device also includes a display screen 102; see [link to documentation]. Figure 2 As shown, in some embodiments, the housing 101 includes a mid-frame (not shown), a side frame 103, and a back cover 104. The side frame 103 and the back cover 104 can be integrally formed or assembled into a single unit. The display screen 102 and the back cover 104 are respectively connected to the side frame 103. Besides being mounted on the back of the electronic device as a rear camera, the camera module 200 can also be used as a front camera; no specific limitation is made here.

[0117] For ease of description, such as Figure 1 and Figure 2 As shown, the length direction of the electronic device can be defined as the AA direction, the width direction of the electronic device can be defined as the BB direction, and the thickness direction, width direction, and length direction of the electronic device are all perpendicular to each other.

[0118] In some embodiments, the electronic device further includes a motherboard and a processor (not shown). The processor is mounted on the motherboard, and the processor and motherboard are housed within a cavity formed by the display screen 102, the back cover 104, and the frame 103. The processor is communicatively connected to the camera module 200. The processor acquires image data from the camera module 200, processes the image data, and then transmits the processed signal to the display screen 102. The communication connection between the camera module 200 and the processor can include data transmission via electrical connections such as wiring, or via wireless communication. It is understood that the camera module 200 and the processor can also communicate via other methods capable of data transmission. Furthermore, the camera module 200 and the mid-frame are located within the cavity formed by the display screen 102, the back cover 104, and the frame 103; the camera module 200 is mounted on the mid-frame.

[0119] Figure 3 This is a schematic diagram of the structure of the camera module 200 provided in this application embodiment. See also: Figure 3As shown, in some embodiments, the camera module 200 includes a driving device 201, a lens 202, and a photosensitive element (not shown). The lens 202 is mounted on the driving device 201. The driving device 201 can also be called a motor, which can be a voice coil motor; for example, the motor can be an optical image stabilization motor. The photosensitive element is located on the image side of the lens 202. Light reflected from the subject passes through the lens 202 to generate an optical image, which is projected onto the photosensitive surface of the photosensitive element. The photosensitive element converts the optical image into an electrical signal, i.e., an analog image signal, and transmits it to the processor. The photosensitive element (also called an image sensor) is a semiconductor chip with hundreds of thousands to millions of photodiodes on its surface. When illuminated by light, it generates an electric charge. The photosensitive element can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) device. A CCD is made of a highly sensitive semiconductor material that can convert light into an electric charge. A charge-coupled device consists of many photosensitive units, typically in megapixel units. When the surface of the photosensitive element is illuminated by light, each photosensitive unit reflects an electric charge onto the component. The signals generated by all the photosensitive units are added together to form a complete image. The driving device 201 in this embodiment can be applied to a lens 202 with a large aperture and / or relatively heavy weight. It can also achieve long-stroke (stroke greater than 300μm) optical image stabilization for lenses with large apertures and / or heavy weight. It is understood that the driving device in this embodiment is not limited to electronic devices, but can also be applied to other devices or apparatuses that require optical image stabilization to compensate for camera module shake. In some embodiments, when the camera module 200 is used as a rear camera, the rear cover 104 of the housing can be provided with a lens hole, and the lens 202 is disposed opposite to the lens hole, so that external light can enter the lens 202 through the lens hole; a transparent cover can be installed at the lens hole, and the transparent cover can be made of glass or plastic. When the camera module 200 is used as a front-facing camera, a light-transmitting area can be provided on the display screen 102, which corresponds to the lens 202, so that external light can enter the lens 202 through the light-transmitting area. It should be noted that in some other possible embodiments, the motor can also be other types of motors, such as open-loop motors, closed-loop motors, or mid-mounted motors.

[0120] For ease of description, such as Figure 3As shown, the height direction of the camera module 200 can be defined as the ZZ direction, the length direction as the XX direction, and the width direction as the YY direction. The XX, YY, and ZZ directions are mutually perpendicular, forming a Cartesian coordinate system. The optical axis of the lens 202 is parallel to the height direction of the camera module 200. The height direction of the driving device 201 is parallel to the height direction of the camera module 200; the length direction of the driving device 201 is parallel to the length direction of the camera module 200; and the width direction of the driving device 201 is parallel to the width direction of the camera module 200.

[0121] In related technologies, motors with optical image stabilization drive optical components to move in two directions to compensate for camera shake during shooting and increase the sharpness of images captured by the camera module. Generally, a motor includes a drive component, which comprises a coil and a magnet, with the magnet located on one of the opposite sides of the coil. The motor has drive components on opposite sides in one direction of the optical component; it also has drive components on opposite sides in the other direction, thus providing drive components in all four directions of the optical component. However, as pixel requirements increase, camera module lenses are becoming larger, increasing lens weight. Furthermore, to maintain image quality, camera module apertures are becoming larger, and long-stroke optical image stabilization is required for heavier lenses. Long stroke refers to a maximum distance greater than 300μm that the lens deviates from its initial position. To increase the driving force of the motor, the number of magnets on one side of the coil is increased, but this increases the overall size of the motor. However, the size of the motor is also limited by the installation space, so a larger motor cannot be used. When using a smaller motor to drive a lens with better optical performance, a larger aperture and / or a larger mass for long-stroke optical image stabilization, insufficient driving force is likely to occur.

[0122] To address this issue, this application provides a driving device 201 to solve the problem caused by driving components being provided at all four positions of the optical device in related embodiments. The driving device 201 provided in this application will now be described in detail.

[0123] Figure 4 This is a schematic diagram of the structure of the driving device 201 provided in the embodiments of this application; combined with Figure 3 and Figure 4As shown, in one or more embodiments, the driving device 201 provided in this application includes: a housing 300 and a movable frame 301; the movable frame 301 is used to carry the device to be driven, so that the device to be driven can move together with the movable frame 301 relative to the housing 300. Exemplarily, the device to be driven is fixed to the movable frame 301, for example, the device to be driven and the movable frame 301 are fixedly connected together by adhesive, snap-fit ​​connection or threaded connection, etc., the device to be driven is a lens 202; the housing 300 has a receiving cavity 302, the movable frame 301 is located in the receiving cavity 302, and the housing 300 also has a shell through hole 303, so as to facilitate the connection between the device to be driven and the movable frame 301, and the shell through hole 303 can also provide clearance space for the movement of the device to be driven. It is understood that in some other possible embodiments, the device to be driven can also be an optical device such as an image sensor, and this application does not specifically limit it.

[0124] Figure 5 yes Figure 4 Another structural diagram from the perspective of Figure 6 It is along Figure 5 A cross-sectional view of line AA; combined with Figure 5 and Figure 6As shown, the drive device 201 further includes a first drive assembly 304 and a second drive assembly 305; the housing 300 has two spaced-apart mounting surfaces 306; the movable frame 301 is located between the two mounting surfaces 306; the first drive assembly 304 is used to drive the movable frame 301 to move relative to the housing 300 along a first direction; the second drive assembly 305 is used to drive the movable frame 301 to move relative to the housing 300 along a second direction, and there is an angle between the first direction and the second direction; wherein, the first drive assembly 304 includes a first magnetic assembly 307 and a first coil assembly 308, the first magnetic assembly 307 and the first coil assembly 308 cooperate, and the first magnetic assembly 307 is mounted on one of the mounting surfaces 306 and the movable frame 301, and the first coil assembly 308 is mounted on the other. The driving device 201 provided in at least one embodiment of this application is suitable for installation spaces with small dimensions. It mounts first magnetic components 307 on two mounting surfaces 306, which enhances the magnetic field strength. A first coil assembly 308 is mounted on a movable frame 301, enabling the driving device 201 to move the first coil assembly 308 using the movable frame 301. The first coil assembly 308 can cut the magnetic field lines between the two first magnetic components 307, achieving the instantaneous driving force required by the driving device 201 to drive the driven device (such as a lens 202 or an image sensor) during long-stroke and high-speed motion stabilization without increasing the power consumption of the electronic device. This achieves the effect of obtaining greater driving force in a smaller space. Compared with motors in related technologies, the driving device 201 of this application embodiment can generate greater driving force when using a relative driving current. Similarly, a scheme is adopted in which the first coil assembly 308 is mounted on the two mounting surfaces 306 and the first magnetic assembly 307 is mounted on the moving frame 301. In this way, the two first coil assemblies 308 cut the magnetic field lines respectively, which can also meet the driving force required by the driving device 201 to drive the driven device (such as the lens 202 or optical devices such as image sensors). When the driving device 201 drives the lens 202, the material of the lens 202 is not limited to glass lens or resin lens.

[0125] In some embodiments, the second driving assembly 305 includes a second magnetic assembly 309 and a second coil assembly 310, with the second magnetic assembly 309 cooperating with the second coil assembly 310. The second magnetic assembly 309 is mounted on one of the mounting surface 306 and the movable frame 301, while the second coil assembly 310 is mounted on the other. This arrangement, with the second magnetic assembly 309 mounted on both mounting surfaces 306 and the second coil assembly 310 mounted on the movable frame 301, enhances the magnetic field strength. The second coil assembly 310 can cut the magnetic field lines between the two second magnetic assemblies 309, thereby facilitating the driving force required by the driving device 201 to drive the driven device (such as a lens 202 or an image sensor, etc.). Alternatively, the second coil assembly 310 can be mounted on both mounting surfaces 306, while the second magnetic assembly 309 can be mounted on the movable frame 301. This allows the two second coil assemblies 310 to cut the magnetic field lines respectively, further facilitating the driving force required by the driving device 201 to drive the driven device (such as a lens 202 or an image sensor, etc.). The first drive component 304 and the second drive component 305 are combined to ensure that the driving force for the drive device 201 to move in two different directions can be satisfied.

[0126] Combination Figure 5 and Figure 6 As shown, in some embodiments, the movable frame 301 is provided with a hole structure 313 for mounting the device to be driven, so that the device to be driven can be mounted on the hole structure 313. The axial direction of the hole structure 313 is parallel to the thickness direction of the driving device 201; part of the lens 202 is fixed in the hole structure 313. The hole structure 313 is a through hole, which facilitates light from outside the electronic device to pass through the lens 202 and illuminate the photosensitive element. For example, the hole structure 313 is a circular through hole.

[0127] Combination Figure 5 and Figure 6 As shown, in some embodiments, the housing 300 includes a base 314 and an outer shell 315, which are fixedly connected. This assembly of the base 314 and outer shell 315 facilitates the installation of the movable frame 301 into the receiving cavity 302. Furthermore, the outer shell 315 and base 314 provide protection and support for the movable frame 301, the first drive assembly 304, and the second drive assembly 305 in the drive device 201. For example, a through-hole 303 is located on the outer shell 315. The base 314 and the outer shell 315 can be fixed by screws, adhesive, or welding. Of the two mounting surfaces 306 of the housing 300, one mounting surface 306 is located on the base 314, and the other mounting surface 306 is located on the outer shell 315. The first drive assembly 304 and the second drive assembly 305 are located between the two mounting surfaces 306.

[0128] Combination Figure 5 and Figure 6 As shown, in some embodiments, at least a portion of the structure of the movable frame 301 is located between two mounting surfaces 306 in the thickness direction of the drive device 201. This facilitates the movement of the movable frame 301 using the first drive assembly 304 and the second drive assembly 305. For example, the movable frame 301 includes a main body 316 located between the two mounting surfaces 306; the movable frame 301 also includes a protrusion 317, which is fixedly connected to the main body 316. The protrusion 317 can protrude towards the direction of the shell through-hole 303 of the outer casing 315; the protrusion 317 can be arranged around the edge of the hole structure 313. It should be noted that the protrusion 317 can be completely located between the two mounting surfaces 306, or a portion of the protrusion 317 can be located between the two mounting surfaces 306 while the other portion is not located between the two mounting surfaces 306.

[0129] In some embodiments, the first direction and the second direction are perpendicular to each other, which enables precise position adjustment of the driven device, such as the lens 202, ensuring optical image stabilization. Additionally, the first and second directions are perpendicular to the axial direction of the aperture structure 313. The optical axis of the lens 202 is perpendicular to the first direction and the second direction. The first driving assembly 304 and the second driving assembly 305 cooperate to achieve optical image stabilization of the lens 202. The optical axis of the lens 202 is parallel to the thickness direction of the driving device 201.

[0130] It should be noted that in some other possible implementations, the angle between the first direction and the second direction can be 60 to 90 degrees, such as 60, 70, or 80 degrees.

[0131] See Figure 6As shown, in some embodiments, first magnetic components 307 are fixed on two mounting surfaces 306 respectively, and a first coil assembly 308 is fixed on the movable frame 301. Compared with related technologies that increase the number of magnets located on one side of the coil, this embodiment fixes the first magnetic components 307 on the mounting surface 306 and the first coil assembly 308 on the movable frame 301, so that the first magnetic components 307 are respectively arranged on opposite sides of the first coil assembly 308. After the two first magnetic components 307 are arranged opposite each other, the magnetic field line distribution between the first coil assembly 308 is changed, which is beneficial to the enhancement of the magnetic field strength. The first coil assembly 308 can cut the magnetic field lines between the two first magnetic components 307, generating Lorentz force, which is beneficial to meeting the driving force required by the driving device 201 to drive the driven device (such as lens 202 or image sensor and other optical devices). For example, the two first magnetic components 307 and the first coil assembly 308 are arranged facing each other in the thickness direction of the driving device 201. This arrangement is beneficial to the effective transmission of magnetic field and energy conversion.

[0132] See Figure 6 As shown, in some embodiments, second magnetic components 309 are fixed on two mounting surfaces 306 respectively, and a second coil assembly 310 is fixed on the movable frame 301. Compared with related technologies that increase the number of magnets located on one side of the coil, in this embodiment, the second magnetic components 309 are fixed on the mounting surfaces 306, while the second coil assembly 310 is fixed on the movable frame 301. This allows the second magnetic components 309 to be arranged on opposite sides of the second coil assembly 310. The opposing arrangement of the two second magnetic components 309 changes the distribution of magnetic field lines between the second coil assembly 310, which is beneficial to enhancing the magnetic field strength. The second coil assembly 310 can cut the magnetic field lines between the two second magnetic components 309, generating a Lorentz force, which is beneficial to meeting the driving force required by the driving device 201 to drive the driven device (such as a lens 202 or an image sensor). For example, the two second magnetic components 309 and the second coil assembly 310 are arranged facing each other in the thickness direction of the driving device 201. This arrangement is beneficial to the effective transmission of the magnetic field and energy conversion.

[0133] See Figure 6As shown, in some embodiments, the drive device 201 further includes an intermediate support 318; the intermediate support 318 is located between the movable frame 301 and the base 314 in the thickness direction of the drive device 201; the intermediate support 318 moves together with the movable frame 301 relative to the housing 300 in a second direction; the intermediate support 318 is movably connected to the base 314, and the intermediate support 318 is movably connected to the movable frame 301. This arrangement, with the intermediate support 318 sandwiched between the movable frame 301 and the base 314, facilitates the decoupling of the movement of the movable frame 301 in the first direction and its movement in the second direction, reducing or eliminating their mutual influence, thereby improving the overall performance, stability, or flexibility of the drive device 201, and enhancing the long-stroke optical image stabilization effect of the lens 202 with a large aperture or large mass.

[0134] See Figure 6 As shown, in some embodiments, the drive device 201 further includes a rib structure 319, which is embedded inside at least one of the housing 300, the movable frame 301, and the intermediate support 318; the rib structure 319 is made of metal. The rib structure 319 can improve the structural strength of any of the housing 300, the movable frame 301, and the intermediate support 318, thereby increasing the service life of the drive device 201 and providing improved stability for supporting the heavier lens 202. For example, both the movable frame 301 and the intermediate support 318 are provided with rib structures 319. The intermediate support 318 and the movable frame 301 are made of plastic, and the rib structure 319 is embedded in the intermediate support 318 and the movable frame 301 respectively by insert injection molding to improve the structural strength of the intermediate support 318 and the movable frame 301; the metal can be aluminum alloy, copper, titanium, or stainless steel, etc.

[0135] It should be noted that the rib structure 319 can also be embedded in other ways, such as by 3D printing. When 3D printing is used, the materials of the housing 300, the moving frame 301, and the intermediate support 318 are not limited to plastic, but can also be ceramic or non-magnetic metal, etc. In addition, in some other possible embodiments, the rib structure 319 can also be provided on the housing 300, for example, the rib structure 319 can be provided on the outer shell 315 and / or the base 314.

[0136] Figure 7 This is an exploded view of the driving device 201 provided in the embodiments of this application; combined with Figure 6 and Figure 7As shown, the drive device 201 also includes a first roller 320 and a second roller 321. The first roller 320 is located between the base 314 and the intermediate support 318, and the second roller 321 is located between the intermediate support 318 and the moving frame 301. Because the intermediate support 318 is used, the first roller 320 can be conveniently set between the intermediate support 318 and the base 314, and the second roller 321 can be set between the intermediate support 318 and the moving frame 301. This can reduce or eliminate the influence between the movement of the first roller 320 and the movement of the second roller 321, thereby improving the overall performance, stability or flexibility of the drive device 201 and improving the long-stroke optical image stabilization effect of the lens 202 with a large aperture or large mass. The first coil assembly 308 is biased toward the first magnetic assembly 307 on the first mounting surface in the thickness direction of the drive device 201, and the second coil assembly 310 is biased toward the second magnetic assembly 309 on the first mounting surface in the thickness direction of the drive device 201. This allows the second roller 321 to be held between the intermediate support 318 and the movable frame 301, and the first roller 320 to be held between the intermediate support 318 and the base 314, ensuring that the movable frame 301 can move relative to the intermediate support 318, so that the intermediate support 318 and the movable frame 301 move together relative to the base 314.

[0137] For example, the drive device 201 includes a plurality of first rollers 320 and a plurality of second rollers 321. For instance, the drive device 201 includes four first rollers 320 located at the four corners of the base 314, and four second rollers 321 located at the four corners of the movable frame 301. This achieves smooth movement of the base 314 relative to the movable frame 301 in both the first and second directions. It should be noted that in some other possible embodiments, the number of first rollers 320 327 is not limited to four, but can also be six or eight, etc.; the number of second rollers 321 is not limited to four, but can also be six or eight, etc.

[0138] In some embodiments, the first roller 320 is a ball bearing; the second roller 321 is also a ball bearing. The use of ball bearings provides low-friction support and guidance during movement, reduces friction and vibration, provides precise movement control, and ensures smooth displacement. For example, the ball bearings may be spherical, which improves the flexibility of the movement of the movable frame 301.

[0139] It should be noted that in some other possible implementations, the first roller 320 can be a sliding shaft, and the second roller 321 can be a sliding shaft; using a sliding shaft can ensure stability and accuracy during long-stroke motion. It is understood that in a drive device 201, the type of the first roller 320 and the type of the second roller 321 can be the same or different, i.e., both can be ball bearings; or both can be sliding shafts; or one can be a ball bearing and the other a sliding shaft, depending on actual needs.

[0140] Combination Figure 6 and Figure 7 As shown, in some embodiments, the first coil assembly 308 includes a first coil 322 and a first magnetic yoke 323, the first coil 322 having a coil hole 324; the first magnetic assembly 307 includes a first magnet 325. The presence of the coil hole 324 in the first coil 322 allows the magnetic field to act more concentratedly on a portion of the first coil 322; this design also helps to reduce energy loss and improve the overall performance of the system.

[0141] Combination Figure 6 and Figure 7 As shown, in some embodiments, the second coil assembly 310 includes a second coil 326 and a second magnetic yoke 327, the second coil 326 having a coil hole 324; the second magnetic assembly 309 includes a second magnet 328. The presence of the coil hole 324 allows the magnetic field to act more concentratedly on a portion of the second coil 326; this design also helps to reduce energy loss and improve the overall performance of the system.

[0142] Combination Figure 6 and Figure 7As shown, the driving device 201 also includes a third magnetic yoke 329. The third magnetic yoke 329 is disposed on the side of the first magnet 325 on the mounting surface 306 of the base 314 facing away from the first coil assembly 308, and on the side of the second magnet 328 on the mounting surface 306 of the base 314 facing away from the first coil assembly 308. The third magnetic yoke 329 guides and concentrates the magnetic field of the first magnet 325 and the second magnet 328. For example, the third magnetic yoke 329 can be embedded in the base 314, thus reducing the space occupied by the third magnetic yoke 329 in the thickness direction of the driving device 201. For instance, the third magnetic yoke 329 can be embedded in the base 314 by insert injection molding. It is understandable that the third magnetic yoke 329 can also be mounted on the base 314 in other ways, such as by creating a recessed groove on the base 314 and placing the third magnetic yoke 329 in the recessed groove; in addition, the third magnetic yoke 329 can also be provided on the side of the first magnet 325 on the mounting surface 306 of the housing 315 that faces away from the first coil assembly 308, and the third magnetic yoke 329 can also be provided on the side of the second magnet 328 on the mounting surface 306 of the housing 315 that faces away from the second coil assembly 310.

[0143] Combination Figure 6 and Figure 7 As shown, the drive device 201 also includes a first circuit board 330, which is electrically connected to the main board. The first circuit board 330 can be a rigid circuit board and is fixed to the housing 300. For example, the first circuit board 330 is fixedly connected to the outer shell 315, which has a through hole 331 for connecting the first coil 322 and the second coil 326 to the first circuit board 330. The first coil 322 and the first circuit board 330 can be connected by a flexible circuit board, which facilitates the movement of the moving frame 301. The first coil assembly 308 also includes a first sensing element 332, which senses and feedbacks changes in magnetic flux to detect the position information of the first magnetic component 307 relative to the first coil assembly 308. This allows the drive device 201 to control the amount of movement of the moving frame 301 relative to the base 314 in a first direction, thereby correcting and providing feedback on the position of the lens 202. For example, the first sensing element 332 can be a Hall sensor or a tunnel magnetoresistive sensor. The first sensing element 332 is fixed on the movable frame 301 and is located in the coil hole 324 of the first coil 322. It should be noted that the first coil 322 and the first circuit board 330 can also be electrically connected by other flexible connection methods, such as using a flexible flat cable.

[0144] Combination Figure 6 and Figure 7As shown, the second coil 326 and the first circuit board 330 can be connected via a flexible circuit board, facilitating the movement of the moving frame 301. The second coil assembly 310 also includes a second sensing element 333. The second sensing element 333 detects the position information of the second magnetic component 309 relative to the second coil assembly 310 by sensing changes in magnetic flux, enabling the drive device 201 to control the movement of the moving frame 301 relative to the base 314 in a second direction, thereby correcting and providing feedback on the position of the lens 202; thus achieving precise control of the lens 202 position and achieving image stabilization of the lens 202. For example, the second sensing element 333 can be a Hall sensor or a tunnel magnetoresistive sensor. The second sensing element 333 is fixed on the moving frame 301 and located in the coil hole 324 of the second coil 326. It should be noted that the second coil 326 and the first circuit board 330 can also be electrically connected using other flexible connection methods, such as using a flexible flat cable.

[0145] For ease of description and distinction of the two mounting surfaces 306, the mounting surface 306 located on the base 314 is referred to as the first mounting surface, and the mounting surface 306 located on the housing 315 is referred to as the second mounting surface.

[0146] Combination Figure 6 and Figure 7 As shown, in some embodiments, the movable frame 301 has a plate-like structure, which facilitates the installation of the first coil assembly 308 and the second coil assembly 310 for the installation of the driving device. In the thickness direction of the driving device 201, the distance between the first coil assembly 308 and the first magnetic assembly 307 located on the first mounting surface is less than the distance between the first coil assembly 308 and the first magnetic assembly 307 located on the second mounting surface; the first coil assembly 308 is located on the side of the movable frame 301 facing the first mounting surface. In this way, the first coil assembly 308 is biased towards the first magnetic assembly 307 on the first mounting surface in the thickness direction of the drive device 201, so that the first magnetic yoke 323 attracts the first magnet 325 on the first mounting surface of the base 314. This helps to ensure that the moving frame 301 and the housing 300 can be attracted to each other. In addition, the first roller 320 can be pressed between the base 314 and the intermediate support 318, and the second roller 321 can be pressed between the moving frame 301 and the intermediate support 318. This allows the base 314 and the intermediate support 318 to move relative to each other, and the intermediate support 318 and the moving frame 301 to move relative to each other. This achieves the decoupling and anti-shake effect of the drive device 201 in the first and second directions, which can reduce the risk of crosstalk during the optical image stabilization process.

[0147] Combination Figure 6 and Figure 7As shown, in some embodiments, in the thickness direction of the drive device 201, the distance between the second coil assembly 310 and the second magnetic assembly 309 located on the first mounting surface is less than the distance between the second coil assembly 310 and the second magnetic assembly 309 located on the second mounting surface; the movable frame 301 has a plate-like structure, and the second coil assembly 310 is located on the side of the movable frame 301 facing the first mounting surface. In this way, the second coil assembly 310 is biased towards the second magnetic assembly 309 on the first mounting surface in the thickness direction of the drive device 201, so that the second magnetic yoke 327 attracts the second magnet 328 on the first mounting surface of the base 314, which helps to ensure that the moving frame 301 and the housing 300 can be attracted together. In addition, the first roller 320 can be pressed between the base 314 and the intermediate support 318, and the second roller 321 can be pressed between the moving frame 301 and the intermediate support 318, so that the base 314 and the intermediate support 318 can move relative to each other, and the intermediate support 318 and the moving frame 301 can move relative to each other, thereby achieving the decoupling anti-shake effect of the drive device 201 in the first and second directions, which can reduce the risk of crosstalk during the optical image stabilization process.

[0148] See Figure 7 As shown, in some embodiments, the first magnet 325 can be a multipole magnet, and the second magnet 328 can be a multipole magnet. When the first magnet 325 and the second magnet 328 are multipole magnets, the driving device 201 can provide a more uniform magnetic field or a stronger local magnetic field within a limited space, thereby improving the driving force. For example, a multipole magnet has multiple magnetic poles on each of its two opposing surfaces; in the thickness direction of the driving device 201, each magnetic pole on one surface is magnetically opposite to the corresponding magnetic pole on the other surface.

[0149] It should be noted that in some other possible implementations, both the first magnet 325 and the second magnet 328 may be unipolar magnets, thus meeting different design requirements. A unipolar magnet has only one magnetic pole on each of its two opposing faces. When the first magnet 325 is a unipolar magnet, the first magnetic assembly 307 may contain multiple first magnets 325, for example, two, arranged side-by-side, with the magnetic poles of the two first magnets 325 facing the same side opposite. When the second magnet 328 is a unipolar magnet, the second magnetic assembly 309 may contain multiple second magnets 328, for example, two, arranged side-by-side, with the magnetic poles of the two second magnets 328 facing the same side opposite. It is understandable that in a drive device 201, the type of the first magnet 325 and the type of the second magnet 328 can be the same or different, that is, both can be multipole magnets; or both can be unipole magnets; or one can be a multipole magnet and the other can be a unipole magnet. The specific choice can be made according to actual needs.

[0150] Figure 8 This is a state diagram showing the first coil assembly 308 and the second coil assembly 310 in the first form of the embodiments of this application; see also Figure 8 As shown, a first magnetic yoke 323 is provided at the center of the coil hole 324 of the first coil 322; a second magnetic yoke 327 is provided at the center of the coil hole 324 of the second coil 326; in this way, the first magnetic yoke 323 can be directly attracted to the first magnet 325 on the base 314, and the second magnetic yoke 327 is attracted to the second magnet 328 on the base 314, so that the movable frame 301 can be attached to the housing 300. However, the movable frame 301 can move along the first direction when the first coil assembly 308 is energized, and the movable frame 301 can also move along the second direction when the second coil assembly 310 is energized. For example, the first magnetic yoke 323 is a sheet structure, and the second magnetic yoke 327 is a sheet structure. The larger surface area of ​​the first magnetic yoke 323 and the larger surface area of ​​the second magnetic yoke 327, i.e. the surface enclosed by the length and width, are parallel to the first direction and the second direction, respectively. In this way, the first magnet 325 on the base 314 and the first magnetic yoke 323 can have a strong magnetic attraction; the second magnet 328 on the base 314 and the second magnetic yoke 327 can also have a strong magnetic attraction.

[0151] Figure 9 This is a state diagram showing the cooperation between the first coil assembly 308 and the second coil assembly 310 in the second form of the embodiments of this application. See [link / reference]. Figure 9As shown, a plurality of first magnetic yokes 323 are provided in the coil hole 324 of the first coil 322, and at least two first magnetic yokes 323 are spaced apart in the length direction of the first coil 322, the length direction of the first coil 322 being parallel to the second direction; a plurality of second magnetic yokes 327 are provided in the coil hole 324 of the second coil 326, and at least two second magnetic yokes 327 are spaced apart in the length direction of the second coil 326, the length direction of the second coil 326 being parallel to the first direction; the provision of a plurality of first magnetic yokes 323 and a plurality of second magnetic yokes 327 can also ensure that the intermediate support 318 is pressed between the movable frame 301 and the base 314, the movable frame 301 can move along the first direction when the first coil assembly 308 is energized, and the movable frame 301 can also move along the second direction when the second coil assembly 310 is energized. For example, there are two first magnetic yokes 323 and two second magnetic yokes 327. The first magnetic yoke 323 and the second magnetic yoke 327 are sheet-like structures. The larger surface area of ​​the first magnetic yoke 323 and the larger surface area of ​​the second magnetic yoke 327, i.e. the surface enclosed by the length and width, are parallel to the thickness direction of the driving device 201. This can also ensure that there is sufficient magnetic attraction between the first magnet 325 on the base 314 and the first magnetic yoke 323, and there is also sufficient magnetic attraction between the second magnet 328 on the base 314 and the second magnetic yoke 327.

[0152] Figure 10 This is a state diagram showing the cooperation between the first coil assembly 308 and the second coil assembly 310 in the third form of the embodiments of this application. See [link / reference]. Figure 10As shown, the first coil 322 includes an outer coil portion 334 and an inner coil portion 335 connected in series. The outer coil portion 334 of the first coil 322 is sleeved outside the inner coil portion 335 of the first coil 322. A first magnetic yoke 323 is disposed between the outer coil portion 334 and the inner coil portion 335 of the first coil 322. The first magnetic yoke 323 located between the outer coil portion 334 and the inner coil portion 335 of the first coil 322 is ring-shaped. The second coil 326 includes an outer coil portion 334 and an inner coil portion 335 connected in series. The outer coil portion 334 of the second coil 326 is sleeved outside the inner coil portion 335 of the second coil 326. Outside of 35, a second magnetic yoke 327 is provided between the outer coil portion 334 and the inner coil portion 335 of the second coil 326. The second magnetic yoke 327 located between the outer coil portion 334 and the inner coil portion 335 of the second coil 326 is annular. The first magnetic yoke 323 and the second magnetic yoke 327 arranged in this way can also ensure that the intermediate support 318 is pressed between the movable frame 301 and the base 314. The movable frame 301 can move along the first direction when the first coil assembly 308 is energized, and the movable frame 301 can also move along the second direction when the second coil assembly 310 is energized. For example, the first magnetic yoke 323 adopts a sheet-like structure forming a ring; the direction radiating outward from the center of the coil hole 324 of the first coil 322 is, in sequence, the inner ring portion 335, the first magnetic yoke 323, and the outer ring portion 334. The first magnetic yoke 323 is fitted outside the inner ring portion 335, and the outer ring portion 334 is fitted outside the first magnetic yoke 323. In this way, since the first magnetic yoke 323 is ring-shaped, it can also ensure that there is sufficient magnetic attraction between the first magnet 325 on the base 314 and the first magnetic yoke 323. Similarly, the second magnetic yoke 327 adopts a sheet-like structure forming a ring; radiating outward from the center of the coil hole 324 of the second coil 326, the sequence is the inner ring 335, the second magnetic yoke 327, and the outer ring 334. The second magnetic yoke 327 is fitted outside the inner ring 335, and the outer ring 334 is fitted outside the second magnetic yoke 327. Since the second magnetic yoke 327 is ring-shaped, it can also ensure that there is sufficient magnetic attraction between the second magnet 328 on the base 314 and the second magnetic yoke 327.

[0153] Figure 11 This is a state diagram showing the cooperation between the first coil assembly 308 and the second coil assembly 310 in the fourth form of the embodiments of this application. See [link / reference]. Figure 11As shown, the first coil 322 includes two coil layers 336 connected in series. The two coil layers 336 of the first coil 322 are stacked in the thickness direction of the driving device 201. A first magnetic yoke 323 is disposed between the two coil layers 336 of the first coil 322, and the first magnetic yoke 323 located between the two coil layers 336 of the first coil 322 is ring-shaped. The second coil 326 includes two coil layers 336 connected in series. The two coil layers 336 of the second coil 326 are stacked in the thickness direction of the driving device 201. A second magnetic yoke 327 is disposed between the two coil layers 336 of the second coil 326, and the second magnetic yoke 327 located between the two coil layers 336 of the second coil 326 is ring-shaped. The first magnetic yoke 323 and the second magnetic yoke 327, configured in this way, ensure that the intermediate support 318 is pressed between the movable frame 301 and the base 314. The movable frame 301 can move along the first direction when the first coil assembly 308 is energized, and it can also move along the second direction when the second coil assembly 310 is energized. For example, the first magnetic yoke 323 is a sheet-like structure forming a ring, with the larger area of ​​the first magnetic yoke 323 parallel to both the first and second directions. This ensures sufficient magnetic attraction between the first magnet 325 on the base 314 and the first magnetic yoke 323. Similarly, the second magnetic yoke 327 is a sheet-like structure forming a ring, with the larger area of ​​the second magnetic yoke 327 parallel to both the first and second directions. This ensures sufficient magnetic attraction between the second magnet 328 on the base 314 and the second magnetic yoke 327.

[0154] It is understood that, in this embodiment, the driving device 201 can adopt any one of the four forms of the first coil assembly 308 described above. The driving device 201 can also adopt any two of the four forms of the first coil assembly 308, that is, combining two forms of the first coil assembly 308 to form a composite first coil assembly 308, such as a combination of the first and second forms, a combination of the first and third forms, a combination of the first and fourth forms, a combination of the second and third forms, or a combination of the second and third forms. The driving device 201 can also adopt any three of the four forms of the first coil assembly 308, that is, combining three forms of the first coil assembly 308 to form a composite first coil assembly 308. The driving device 201 can also combine the four forms of the first coil assembly 308 together to form a composite first coil assembly 308. Similarly, in this embodiment, the driving device 201 can adopt any one of the four forms of the second coil assembly 310 described above. The driving device 201 can also be any two of the four types of second coil assemblies 310 described above, that is, combining two types of second coil assemblies 310 to form a composite second coil assembly 310, such as a combination of the first and second types, a combination of the first and third types, a combination of the first and fourth types, a combination of the second and third types, or a combination of the second and third types. The driving device 201 can also be any three of the four types of second coil assemblies 310 described above, that is, combining three types of second coil assemblies 310 to form a composite second coil assembly 310. The driving device 201 can also combine the four types of second coil assemblies 310 together to form a composite second coil assembly 310.

[0155] Figure 12 This application provides a schematic diagram of the drive device 201 without the housing 315 installed, in which... Figure 12 The first circuit board 330 and the first magnetic component 307 and the second magnetic component 309 on the housing 315 are not shown in the diagram. See also Figure 12As shown in this embodiment, a first baffle 337 is provided between the intermediate support 318 and the movable frame 301. The first baffle 337 is used to enable the intermediate support 318 and the movable frame 301 to reciprocate together relative to the base 314 in a second direction. Thus, when the second drive assembly 305 drives the movable frame 301 to move, the first baffle 337 between the movable frame 301 and the intermediate support 318 allows the movable frame 301 to move along with the intermediate support 318 in the second direction. For example, the first baffle 337 is fixed to the movable frame 301 and can be integrally formed with it. The side of the intermediate support 318 facing the movable frame 301 has a first limiting groove 338. The first baffle 337 is inserted into the first limiting groove 338, thereby enabling the intermediate support 318 and the movable frame 301 to move together relative to the base 314 in the second direction.

[0156] Figure 13 This is a schematic diagram of the structure of the movable frame 301 in the embodiment of this application. Figure 14 This is a structural schematic diagram of the intermediate support 318 provided in the embodiments of this application, combined with... Figure 13 and Figure 14 As shown in the embodiment of this application, the side of the movable frame 301 facing the base 314 has a first winding post 339 and a second winding post 340. The first winding post 339 is inserted into the coil hole 324 of the first coil 322. The first coil 322 can be fixedly connected to the first winding post 339. The first winding post 339 has a shaft hole 341. The first sensing element 332 is fixed to the bottom of the shaft hole 341 of the first winding post 339. By setting the shaft hole 341, the first sensing element 332 can be located at the center of the coil hole 324 of the first coil 322. The second winding post 340 is inserted into the coil hole 324 of the second coil 326. The second coil 326 can be fixedly connected to the second winding post 340. The second winding post 340 has a shaft hole 341. The first sensing element 332 is fixed to the bottom of the shaft hole 341 of the second winding post 340. The shaft hole 341 is provided so that the second sensing element 333 can be located at the center of the coil hole 324 of the second coil 326. For example, the side of the moving frame 301 facing the base 314 may also have a first annular groove 342 and a second annular groove 343. The first annular groove 342 is located circumferentially on the first winding post 339, and the second annular groove 343 is located circumferentially on the second winding post 340. This facilitates reducing the thickness of the driving device 201.

[0157] Combination Figure 13 and Figure 14As shown in this embodiment, the movable frame 301 has a first limiting groove 338 on the side facing the base 314, and a first baffle 337 is located at the end of the first limiting groove 338 on the movable frame 301 in the length direction. The first limiting groove 338 on the movable frame 301 is joined with the first limiting groove 338 on the intermediate support 318 to form a receiving space for accommodating the second roller 321, and the first baffle 337 is used to limit the second roller 321 in the receiving space. The first limiting groove 338 may have a certain length, and its length extension direction is parallel to the first direction. For example, the movable frame 301 is provided with four first limiting grooves 338, and the intermediate support 318 is provided with four first limiting grooves 338, respectively corresponding to four second rollers 321.

[0158] Figure 15 This is another structural schematic diagram of the intermediate support 318 provided in the embodiments of this application, see [link / reference]. Figure 15 As shown, the intermediate support 318 includes a first rod structure 344, a second rod structure 345, and a third rod structure 346. The length direction of the first rod structure 344 is parallel to the length direction of the third rod structure 346, and the length direction of the second rod structure 345 is perpendicular to the length direction of the first rod structure 344. The two ends of the second rod structure 345 are connected to the first rod structure 344 and the second rod structure 346, respectively. The intermediate support 318 uses the first rod structure 344, the second rod structure 345, and the third rod structure 346 in combination, so that one side of the intermediate support 318 is open in the length direction, which helps to avoid other components of the drive device 201 and reduces interference. For example, the open side of the intermediate support 318 in the length direction faces the first circuit board 330.

[0159] Figure 16 This is a schematic diagram of the structure of the base 314 in the embodiments of this application, combined with... Figure 15 and Figure 16 As shown, the intermediate support 318 has a second limiting groove 347 on the side facing the base 314. A second baffle 348 is fixed on the intermediate support 318. The second baffle 348 and the intermediate support 318 can be integrally formed. The second baffle 348 is located at the end of the second limiting groove 347 on the intermediate support 318 along its length. The base 314 also has a second limiting groove 347 on the side facing the intermediate support 318. The length extension direction of the second limiting groove 347 is parallel to the second direction. The second limiting groove 347 on the base 314 and the second limiting groove 347 on the intermediate support 318 are joined together to form a receiving space for the first roller 320, and the first roller 320 is limited in the receiving space by the second baffle 348. The base 314 has four second limiting grooves 347, and the intermediate support 318 has four second limiting grooves 347, corresponding to the four first rollers 320 respectively.

[0160] See Figure 16 As shown in the embodiment of this application, the mounting surface 306 of the base 314 has a first groove 349 and a second groove 350. The first groove 349 is used to accommodate the first magnetic component 307; the second groove 350 is used to accommodate the second magnetic component 309, thereby fixing the first magnetic component 307 and the second magnetic component 309 to the base 314. The base 314 is also provided with a base through hole 351, so that external light passes through the lens 202 and then through the base through hole 351 to illuminate the photosensitive element.

[0161] Figure 17 This is a schematic diagram of the stiffener structure 319 in the embodiments of this application, see [link / reference]. Figure 17 As shown, the stiffening plate structure 319 includes multiple strip structures 352. The material of the stiffening plate structure 319 can be metal, such as aluminum alloy, copper, titanium, or stainless steel. For example, the movable frame 301 has four strip structures 352 embedded in it, connected end-to-end to form a closed quadrilateral structure. This improves the overall strength of the movable frame 301 when the stiffening plate structure 319 is embedded in it. It should be noted that the intermediate support 318 uses a three-bar structure connection, therefore, the intermediate support 318 has three strip structures 352 embedded in it. These three strip structures 352 are connected, with the first bar structure 344, the second bar structure 345, and the third bar structure 346 each embedding a strip structure 352.

[0162] Figure 18 This is a schematic diagram of the first positional relationship between the first driving component 304, the second driving component 305, and the hole structure 313 in the embodiments of this application; Figure 19 yes Figure 18 Top view; combined with Figure 18 and Figure 19 As shown, in some embodiments, the movable frame 301 is provided with a mounting area 311 for mounting the device to be driven. The mounting area 311 includes a mounting sub-area 312. The mounting sub-area 312 facilitates the mounting of the device to be driven and helps to ensure the stability of the device to be driven on the driving device 201. It also helps to meet the requirements of the device to be driven, such as meeting the optical image stabilization function of optical devices. The mounting sub-area 312 includes a hole structure 313.

[0163] Combination Figure 18 and Figure 19As shown, the mounting area 311 has a mounting side 353, where a first drive assembly 304 and a second drive assembly 305 are located. The mounting side 353 includes a first mounting side 354 and a second mounting side 355. The direction from the first mounting side 354 to the second mounting side 355 is parallel to the length direction of the drive device 201. The orthographic projection of the first drive assembly 304 in the first plane is the first projection, the orthographic projection of the second drive assembly 305 in the first plane is the second projection, and the orthographic projection of the hole structure 313 in the first plane is the third projection. The first plane is parallel to the first direction and the first plane is parallel to the second direction. The orthographic projections of the first and third projections in the second plane do not coincide, and the orthographic projections of the second and third projections in the second plane do not coincide. The second plane is parallel to the length direction of the drive device 201 and perpendicular to the first plane. The length direction of the drive device 201 is parallel to the first direction. In this embodiment, the first drive component 304 and the second drive component 305 responsible for movement in different directions are mounted on the mounting side 353, and the direction from the first mounting side 354 to the second mounting side 355 is parallel to the length direction of the drive device 201. The orthographic projections of the first projection and the third projection in the second plane do not coincide, and the orthographic projections of the second projection and the third projection in the second plane do not coincide. This makes the first drive component 304 and the second drive component 305 distributed in the length direction of the drive device 201, which helps to reduce the overall size of the drive device 201 in the width direction. This allows the drive device 201 to meet the driving force required to drive the driven device (such as the lens 202 or an image sensor and other optical devices) while the size in the width direction is limited.

[0164] For example, the first direction is parallel to the length direction of the driving device 201, and the second direction is parallel to the width direction of the driving device 201. Thus, the first driving component 304 drives the moving frame 301 to move along the length direction of the driving device 201, and the second driving component 305 can drive the moving frame 301 to move along the width direction of the driving device 201. The non-coincidence between the orthographic projection of the first projection in the second plane and the orthographic projection of the third projection in the second plane can be due to them being separate or having only one common point; similarly, the non-coincidence between the orthographic projection of the second projection in the second plane and the orthographic projection of the third projection in the second plane can be due to them being separate or having only one common point. The number of first driving components 304 can be one or more, for example, one, two, or three; the number of second driving components 305 can also be one or more, for example, one, two, or three.

[0165] It should be noted that in some other possible implementations, the second direction may be parallel to the length direction of the drive device 201, while the first direction may be parallel to the width direction of the drive device 201. Furthermore, it should be noted that in this embodiment, the first drive component 304 and the second drive component 305 are located on the mounting side 353. The connection relationship between the first drive component 304 and the second drive component 305 and the moving frame 301 is not defined. Instead, the spatial relative positional relationship of the first drive component 304 and the second drive component 305 is defined with reference to the first mounting side 354 and the second mounting side 355 of the moving frame 301.

[0166] In some embodiments, the length of the driving device 201 is greater than its width. This allows the driving device 201 to be smaller in width while still having a first driving component 304 and a second driving component 305 with appropriate driving force in its length direction. This satisfies the needs of driving the device to be driven, such as the driving force required for long-stroke optical image stabilization of a lens 202 with a large aperture or large mass. For example, the driving device 201 is cuboid in shape, the base 314 is cuboid in shape, and the moving frame 301 is cuboid in shape. The length of the base 314 is greater than its width, and the length of the moving frame 301 is greater than its width. The length direction of the base 314 is parallel to the length direction of the moving frame 301, and the width direction of the base 314 is parallel to the width direction of the moving frame 301. The thickness direction of the base 314 is parallel to the thickness direction of the moving frame 301. A first direction is parallel to the length direction of the moving frame 301, and a second direction is parallel to the width direction of the moving frame 301. After the camera module 200 is installed in the housing 101, the length direction of the camera module 200 is parallel to the width direction of the electronic device. This can reduce the space occupied by the camera module in the length direction of the electronic device. It can be understood that, depending on the installation requirements, the length direction of the camera module 200 can also be set to be parallel to the length direction of the electronic device to reduce the space occupied by the camera module 200 in the width direction of the electronic device.

[0167] It should be noted that in some other possible implementations, the length of the driving device 201 may also be equal to the width of the driving device 201. In this way, in conjunction with at least two first magnetic components 307 and at least two second magnetic components 309, the driving force required to drive the device to be driven (such as a lens 202 with a large aperture and / or a large mass) for long-stroke optical image stabilization can be met.

[0168] Combination Figure 18 and Figure 19As shown, in the length direction of the drive device 201, the hole structure 313 is located between the first mounting side 354 and the second mounting side 355. The hole structure 313 is located on opposite sides of the drive device 201 in the length direction, namely the first mounting side 354 and the second mounting side 355. For example, the hole structure 313 is a circular hole, and the two ends of the diameter of the circular hole that are parallel to the length direction of the drive device 201 are respectively called the first endpoint E and the second endpoint F; two side edges are provided at intervals along the length direction of the moving frame 301, and the two opposite side edges are respectively called the first side edge 356 and the second side edge 357; in the length direction of the drive device 201, the first endpoint E and the first side edge 356 are located on one side of the center O of the circular hole, and the second endpoint F and the second side edge 357 are located on the other side of the center O of the circular hole; the straight line passing through the first endpoint E and parallel to the width direction of the drive device 201 is the first straight line L1, and the straight line passing through the second endpoint F and parallel to the second direction is the second straight line L2; from the first straight line... The area extending from line L1 to the direction of the first side 356 is the first mounting side 354 of the mounting area 311; the area extending from the second straight line L2 to the direction of the second side 357 is the second mounting side 355 of the mounting area 311. The first mounting side 354 and the second mounting side 355 are arranged opposite to each other. The areas on opposite sides of the mounting sub-area 312 in the length direction of the drive device 201 are the first mounting side 354 and the second mounting side 355, respectively. In this way, by simply setting the first drive assembly 304 and the second drive assembly 305 on the mounting side 353, the space occupied by the first drive assembly 304 and the second drive assembly 305 in the width direction of the drive device 201 can be reduced. In at least one embodiment, the aperture structure 313 is provided with a driving component on at least one of its opposite sides in the first direction, and the aperture structure 313 is not provided with a driving component on its opposite sides in the second direction. That is, the driving components are provided on the opposite sides of the lens 202 in the length direction of the driving device 201, but not on the opposite sides of the lens 202 in the width direction. In this way, the driving components are asymmetrically distributed in the driving device 201. Compared with other embodiments in which driving components are provided in all four directions of the optical device, the embodiments of this application are advantageous in reducing the size of the driving device 201 in the width direction, so that the driving device 201 can be adapted to the smaller asymmetrical space size in the electronic device, and the driving device 201 can be used to drive the lens 202 with better optical performance, larger aperture and larger mass for optical image stabilization.

[0169] It should be noted that when the aperture structure 313 is a rectangular aperture, the two opposite sides of the rectangular aperture in the length direction of the driving device 201 are respectively the first mounting side 354 and the second mounting side 355 of the mounting side 353. It is understood that although in this embodiment, the first driving component 304 or the second driving component 305 is not installed on the opposite sides of the aperture structure 313 in the width direction of the driving device 201 to reduce the overall size of the driving device 201 in the second direction and to meet the driving force requirements of a lens 202 with a large aperture or large mass for long-stroke optical image stabilization, in some other possible application scenarios, the first driving component 304 or the second driving component 305 may also be installed on the opposite sides of the aperture structure 313 in the width direction of the driving device 201.

[0170] In some embodiments, combined with Figure 18 and Figure 19 As shown, the first drive assembly 304 and the second drive assembly 305 can be located entirely on the mounting side 353. This helps to reduce the size of the drive device 201 in the second direction, allowing the drive device 201 to be adapted to smaller asymmetric space dimensions in electronic devices, and enabling the drive device 201 to drive a lens 202 with better optical performance, larger aperture, and larger mass for optical image stabilization.

[0171] See Figure 19 As shown, the first drive component 304 is located on the first mounting side 354, and the second drive component 305 is located on the second mounting side 355. For example, the drive device 201 may include a first drive component 304 and a second drive component 305, such as... Figure 19As shown, the first drive component 304, the hole structure 313, and the second drive component 305 are arranged sequentially along the length of the drive device 201. This distribution design of the first drive component 304 and the second drive component 305 on the mounting side 353 can meet the installation position of the drive device 201 in the electronic device and the space requirements in a single direction in the electronic device. The length side of the driving device 201 is parallel to its length direction, and the width side is parallel to its width direction. Along the length of the driving device 201, the distance D2 between the center O of the hole structure 313 and one width side of the driving device 201 is greater than the distance D1 between the center O of the hole structure 313 and the other width side of the driving device 201. This prevents the center O of the hole structure 313 from coinciding with the center of the moving frame 301, resulting in an off-center design of the hole structure 313 relative to the center of the moving frame 301. This satisfies the installation position and spatial requirements of the driving device 201 in the electronic device, allowing it to adapt to different installation scenarios. Furthermore, the asymmetrical distribution of the driving components within the driving device 201 facilitates miniaturization and improves the space utilization of the camera module 200. Because the first driving component 304 and the second driving component 305 are arranged differently, therefore... Figure 19 In the case of the mobile frame 301, the area occupied by the first mounting side 354 where the first drive component 304 is located can be smaller than the area occupied by the second mounting side 355 where the second drive component 305 is located.

[0172] Figure 20 This is a schematic diagram illustrating the second positional relationship between the first driving component 304, the second driving component 305, and the hole structure 313 in an embodiment of this application; as shown... Figure 20As shown, in some other embodiments, both the first drive assembly 304 and the second drive assembly 305 are located on the second mounting side 355. For example, the second mounting side 355 is provided with one first drive assembly 304 and one second drive assembly 305, while the first mounting side 354 is not provided with either the first drive assembly 304 or the second drive assembly 305. The hole structure 313, the first drive assembly 304, and the second drive assembly 305 are arranged sequentially along the length of the drive device 201. For example, in the length direction of the driving device 201, the distance D2 between the center O of the hole structure 313 and one width side of the driving device 201 is greater than the distance D1 between the center O of the hole structure 313 and the other width side of the driving device 201. This makes the center O of the hole structure 313 not coincide with the center of the moving frame 301, and makes the hole structure 313 eccentrically designed relative to the center of the moving frame 301. This can meet the installation position of the driving device 201 in the electronic device and the space requirements in a single direction in the electronic device, so that the driving device 201 can adapt to different installation occasions. In addition, the asymmetrical distribution of the driving components in the driving device 201 is conducive to the miniaturization of the size of the driving device 201 and improves the space utilization of the camera module 200. It should be noted that in some other possible implementations, one of the first mounting side 354 and the second mounting side 355 may be provided with one or more first driving components 304 and one or more second driving components 305, for example, 2 to 3 first driving components 304 and 2 to 3 second driving components 305 may be provided; while the other may not be provided with first driving components 304 and second driving components 305.

[0173] Figure 21 This is a schematic diagram illustrating a third positional relationship between the first driving component 304, the second driving component 305, and the hole structure 313 provided in this application embodiment. Figure 21As shown, in some other embodiments, both the first drive assembly 304 and the second drive assembly 305 are located on the second mounting side 355. For example, the second mounting side 355 is provided with one first drive assembly 304 and one second drive assembly 305, while the first mounting side 354 is not provided with either the first drive assembly 304 or the second drive assembly 305. The hole structure 313, the second drive assembly 305, and the first drive assembly 304 are arranged sequentially along the length of the drive device 201. For example, in the longitudinal direction of the driving device 201, the distance D2 between the center O of the hole structure 313 and one width side of the driving device 201 is greater than the distance D1 between the center O of the hole structure 313 and the other width side of the driving device 201. This makes the center O of the hole structure 313 not coincide with the center of the moving frame 301, resulting in an off-center design of the hole structure 313 relative to the center of the moving frame 301. This satisfies the installation position of the driving device 201 in the electronic device and the space requirements in a single direction within the electronic device, allowing the driving device 201 to adapt to different installation occasions. Furthermore, the asymmetrical distribution of the driving components in the driving device 201 facilitates the miniaturization of the driving device 201 and improves the space utilization of the camera module 200. It should be noted that in some other possible embodiments, one of the first mounting side 354 and the second mounting side 355 may be provided with one or more first driving components 304 and one or more second driving components 305; while the other may be provided with one first driving component 304 or one second driving component 305.

[0174] Figure 22 This is a schematic diagram illustrating a fourth positional relationship between the first driving component 304, the second driving component 305, and the hole structure 313 provided in this application embodiment. Figure 22 As shown, in some embodiments, the integral formed by the first drive assembly 304 and the second drive assembly 305 located on the first mounting side 354 is centrally symmetrically arranged with the integral formed by the first drive assembly 304 and the second drive assembly 305 located on the second mounting side 355. This distribution design of the first drive assembly 304 and the second drive assembly 305 on the mounting side 353 can satisfy the balance of the moving frame 301 in different directions, the balance of the overall mass of the drive device 201, the required driving force of the drive device 201 in different directions, the installation position of the drive device 201 in the electronic device, and the space requirements in a single direction within the electronic device. For example, as... Figure 22As shown, the first drive assembly 304 and the second drive assembly 305 located on the first mounting side 354 are arranged in the width direction of the drive device 201, and the first drive assembly 304 and the second drive assembly 305 located on the second mounting side 355 are also arranged in the width direction of the drive device 201. The line connecting the first drive assembly 304 on the first mounting side 354 and the first drive assembly 304 on the second mounting side 355 intersects with the line connecting the second drive assembly 305 on the first mounting side 354 and the second drive assembly 305 on the second mounting side 355. This achieves a diagonal arrangement between the first drive assembly 304 on the first mounting side 354 and the first drive assembly 304 on the second mounting side 355, and a diagonal arrangement between the second drive assembly 305 on the first mounting side 354 and the second drive assembly 305 on the second mounting side 355, thereby ensuring the stability of the movement of the moving frame 301.

[0175] Figure 23 This is a structural schematic diagram illustrating the fifth positional relationship between the first driving component 304, the second driving component 305, and the hole structure 313 provided in this application embodiment. See [link / reference]. Figure 23 As shown, in some other possible embodiments, a first drive assembly 304 and a second drive assembly 305 are respectively provided on the first mounting side 354 and the second mounting side 355. The first drive assembly 304 and the second drive assembly 305 on the first mounting side 354 are arranged in an axisymmetric manner with the first drive assembly 304 and the second drive assembly 305 on the second mounting side 355. This distribution design of the first drive assembly 304 and the second drive assembly 305 on the mounting side 353 can meet different needs, such as the balance of the moving frame 301 in different directions, the balance of the overall mass of the drive device 201, the required driving force of the drive device 201 in different directions, the installation position of the drive device 201 in the electronic device, and the space requirements in a single direction in the electronic device.

[0176] Figure 24 This is a simplified structural diagram of another driving device 201 provided in the embodiments of this application; see also Figure 24As shown, in some other possible embodiments, first coil assemblies 308 are fixed on two mounting surfaces 306 respectively, and a first magnetic assembly 307 is fixed on the movable frame 301; second coil assemblies 310 are fixed on two mounting surfaces 306 respectively, and a second magnetic assembly 309 is fixed on the movable frame 301. In this way, the two first coil assemblies 308 cut magnetic field lines respectively, and the two second coil assemblies 310 cut magnetic field lines respectively, thereby facilitating the fulfillment of the driving force required by the driving device 201 to drive the driven device (such as a lens 202 or an image sensor, or other optical device). For example, the first magnetic assembly 307 is located between the two first coil assemblies 308 that cooperate with it, and the second magnetic assembly 309 is located between the two second coil assemblies 310 that cooperate with it.

[0177] It should be noted that, in Figure 24 In the illustrated embodiment, the relationship between the first drive assembly 304, the second drive assembly 305, and the mounting side 353 can be referred to the foregoing and will not be repeated here. The specific structural descriptions of the first coil assembly 308, the first magnetic assembly 307, the second coil assembly 310, and the second magnetic assembly 309 can be referred to the foregoing and will not be repeated here. The structure and connection relationship of the movable frame 301, the intermediate support 318, and the housing 300 can also be referred to the foregoing and will not be repeated here. It is understood that by providing the first magnetic assembly 307 and the second magnetic assembly 309 on the movable frame 301, the first winding post 339 and the second winding post 340 may not need to be provided on the movable frame 301.

[0178] In the description of this application, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0179] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A driving device, characterized in that, include: A housing having two spaced-apart mounting surfaces; A movable frame, located between the two mounting surfaces, is used to support the device to be driven. A first drive assembly is used to drive the movable frame to move relative to the housing along a first direction; A second drive assembly is used to drive the movable frame to move relative to the housing along a second direction, wherein the first direction and the second direction have an angle between them. The first driving component includes a first magnetic component and a first coil component. The first magnetic component cooperates with the first coil component. The first magnetic component is installed on one of the mounting surface and the movable frame, and the first coil component is installed on the other.

2. The driving device as described in claim 1, characterized in that, The second driving component includes a second magnetic component and a second coil component, wherein the second magnetic component cooperates with the second coil component; The second magnetic component is mounted on one of the mounting surface and the movable frame, and the second coil component is mounted on the other.

3. The driving device as described in claim 1 or 2, characterized in that, The first magnetic component is fixed on each of the two mounting surfaces, and the first coil component is fixed on the movable frame.

4. The driving device as described in claim 3, characterized in that, The first coil assembly includes a first coil and a first magnetic yoke, the first coil having a coil hole; The first magnetic component includes a first magnet, which is a multipole magnet or a unipole magnet.

5. The driving device as described in claim 4, characterized in that, The first magnetic yoke is provided at the center of the coil hole of the first coil; And / or, a plurality of first magnetic yokes are provided in the coil hole of the first coil, and at least two of the first magnetic yokes are spaced apart in the length direction of the first coil, and the length direction of the first coil is parallel to the second direction; And / or, the first coil includes an outer coil portion and an inner coil portion connected in series, the outer coil portion of the first coil is sleeved outside the inner coil portion of the first coil, and a first magnetic yoke is disposed between the outer coil portion and the inner coil portion of the first coil, the first magnetic yoke located between the outer coil portion and the inner coil portion of the first coil is ring-shaped. And / or, the first coil includes two coil layers connected in series, the two coil layers of the first coil are stacked in the thickness direction of the driving device, and the first magnetic yoke is disposed between the two coil layers of the first coil, the first magnetic yoke located between the two coil layers of the first coil is in the shape of a ring.

6. The driving device as described in claim 2, characterized in that, The second magnetic component is fixed on each of the two mounting surfaces, and the second coil component is fixed on the movable frame.

7. The driving device as claimed in claim 6, characterized in that, The second coil assembly includes a second coil and a second magnetic yoke, the second coil having a coil hole; The second magnetic component includes a second magnet, which is a multipole magnet or a unipole magnet.

8. The driving device as claimed in claim 7, characterized in that, The second magnetic yoke is provided at the center of the coil hole of the second coil; And / or, a plurality of second magnetic yokes are provided in the coil hole of the second coil, and at least two of the second magnetic yokes are spaced apart in the length direction of the second coil, the length direction of the second coil being parallel to the first direction; And / or, the second coil includes an outer coil portion and an inner coil portion connected in series, the outer coil portion of the second coil is sleeved outside the inner coil portion of the second coil, and a second magnetic yoke is provided between the outer coil portion and the inner coil portion of the second coil, the second magnetic yoke located between the outer coil portion and the inner coil portion of the second coil is ring-shaped; And / or, the second coil includes two coil layers connected in series, the two coil layers of the second coil are stacked in the thickness direction of the driving device, and a second magnetic yoke is disposed between the two coil layers of the second coil, the second magnetic yoke located between the two coil layers of the second coil being annular.

9. The driving device as described in any one of claims 1-8, characterized in that, The two mounting surfaces are the first mounting surface and the second mounting surface, respectively. In the thickness direction of the driving device, the distance between the first coil assembly and the first magnetic assembly located on the first mounting surface is less than the distance between the first coil assembly and the first magnetic assembly located on the second mounting surface. The movable frame has a plate-like structure, and the first coil assembly is located on the side of the movable frame facing the first mounting surface.

10. The driving device as described in claim 2, 6, 7 or 8, characterized in that, The two mounting surfaces are the first mounting surface and the second mounting surface, respectively. In the thickness direction of the driving device, the distance between the second coil assembly and the second magnetic assembly located on the first mounting surface is less than the distance between the second coil assembly and the second magnetic assembly located on the second mounting surface; The movable frame has a plate-like structure, and the second coil assembly is located on the side of the movable frame facing the first mounting surface.

11. The driving device according to any one of claims 1-10, characterized in that, The housing includes a base and an outer shell, and the base and the outer shell are fixedly connected; Of the two mounting surfaces, one mounting surface is located on the base, and the other mounting surface is located on the housing; The mounting surface located on the base is the first mounting surface, and the mounting surface located on the outer shell is the second mounting surface.

12. The driving device as claimed in claim 11, characterized in that, It also includes an intermediate support, a first roller, and a second roller; In the thickness direction of the driving device, the intermediate support is located between the movable frame and the base; The intermediate support and the movable frame move together relative to the housing in the second direction; The intermediate support is movably connected to the base, and the intermediate support is movably connected to the movable frame, wherein the first roller is located between the intermediate support and the base, and the second roller is located between the intermediate support and the movable frame.

13. The driving device as claimed in claim 12, characterized in that, The first roller is a ball bearing or a sliding shaft; the second roller is a ball bearing or a sliding shaft.

14. The driving device as claimed in claim 12, characterized in that, The intermediate support includes a first rod structure, a second rod structure, and a third rod structure. The length direction of the first rod structure is parallel to the length direction of the third rod structure, and the length direction of the second rod structure is perpendicular to the length direction of the first rod structure. The two ends of the length direction of the second rod structure are respectively connected to the first rod structure and the second rod structure.

15. The driving device according to any one of claims 12-14, characterized in that, It also includes a stiffening plate structure, in which at least one of the housing, the movable frame and the intermediate support is embedded; the stiffening plate structure is made of metal.

16. The driving device according to any one of claims 1-15, characterized in that, The mobile frame is provided with an installation area, the installation area has an installation side, the first drive component is located on the installation side, and the second drive component is located on the installation side; The mounting side includes a first mounting side and a second mounting side, and the direction from the first mounting side to the second mounting side is parallel to the length direction of the driving device; The mounting area includes a mounting sub-area, and the mounting sub-area includes a hole structure for mounting the device to be driven. The orthographic projection of the first driving component in the first plane is the first projection, the orthographic projection of the second driving component in the first plane is the second projection, and the orthographic projection of the hole structure in the first plane is the third projection. The first plane is parallel to the first direction and the first plane is parallel to the second direction. The first projection in the second plane and the third projection in the second plane do not coincide. The second plane is parallel to the length direction of the driving device and perpendicular to the first plane. The length direction of the driving device is parallel to the first direction, or the length direction of the driving device is parallel to the second direction.

17. The driving device as claimed in claim 16, characterized in that, The first drive component is located on the first mounting side, and the second drive component is located on the second mounting side; Alternatively, both the first driving component and the second driving component are located on the first mounting side; Alternatively, both the first driving component and the second driving component are located on the second mounting side; Alternatively, the first mounting side and the second mounting side are respectively provided with a first driving component and a second driving component, and the whole formed by the first driving component and the second driving component on the first mounting side is centrally symmetrical or axially symmetrical with the whole formed by the first driving component and the second driving component on the second mounting side.

18. The driving device as claimed in claim 16, characterized in that, The distance between the center of the hole structure and one width side of the driving device is greater than the distance between the center of the hole structure and the other width side of the driving device.

19. The driving device as described in any one of claims 1-18, characterized in that, The two mounting surfaces and the movable frame are arranged at intervals in the thickness direction of the drive device; The first direction and the second direction are perpendicular to each other; the first direction and the second direction are respectively perpendicular to the thickness direction of the driving device.

20. The driving device according to any one of claims 1-18, characterized in that, The length of the driving device is greater than the width of the driving device; Alternatively, the length of the drive device is equal to the width of the drive device.

21. The driving device according to any one of claims 1-17, characterized in that, The first direction is parallel to the length direction of the driving device, and the second direction is parallel to the width direction of the driving device; Alternatively, the first direction is parallel to the width direction of the driving device, and the second direction is parallel to the length direction of the driving device.

22. The drive device as claimed in any one of claims 4, 5, 7, 8 and 11-19, characterized in that, The second driving component includes a second magnetic component and a second coil component, wherein the second magnetic component cooperates with the second coil component; The first coil assembly is fixed on each of the two mounting surfaces, and the first magnetic assembly is fixed on the movable frame; The second coil assembly is fixed on each of the two mounting surfaces, and the second magnetic assembly is fixed on the movable frame.

23. A camera module, characterized in that, include: The lens and the driving device as described in any one of claims 1-22, wherein the lens is fixedly connected to the movable frame; The optical axis of the lens is perpendicular to the first direction, and the optical axis of the lens is perpendicular to the second direction.

24. An electronic device, characterized in that, The device includes a housing and a camera module as described in claim 23, wherein the camera module is mounted on the housing, and the housing has a lens hole, with the lens facing the lens hole.

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