Driver and camera

Abstract

The application discloses a driver and a camera device. The driver comprises a base provided with an anti-shake coil; a first carrier provided with an anti-shake magnet and a focusing coil, the anti-shake magnet being correspondingly arranged with the anti-shake coil; and a second carrier provided with a focusing magnet, the focusing magnet being correspondingly arranged with the focusing coil. The driver can realize integrated setting of the anti-shake function and the focusing function, so that the lens assembly can be installed to the driver, and a fixing component for the focusing function is not needed, thereby facilitating reduction of the volume of the camera device, and realizing miniaturization design of the camera device.

Description

Technical Field

[0001] This application relates to the field of camera module technology, and more particularly to a driver and camera device. Background Technology

[0002] With the development of hardware technology for image processing and the increasing demand from users for image capture, camera devices have been installed in portable terminals (such as cellular phones and smartphones, as well as stand-alone camera devices). However, as users raise their standards for image capture, they demand technologies that can enable clear imaging of the subject and prevent image blurring caused by hand shake or movement during shooting.

[0003] Autofocus (AF) refers to the design of a camera device that measures distance to a specific area and then adjusts the lens to form a focus, so that the image in the camera device looks clear. Optical image stabilization (OIS) is a technology used to counteract image blur caused by hand shake or movement during the shooting process.

[0004] Currently, camera devices typically include a driver, a lens, and an imaging chip. To achieve focusing and image stabilization, the lens is usually moved relative to the imaging chip, or the imaging chip is moved relative to the lens. In particular, when performing image stabilization, the driver moves the lens or imaging chip in a direction perpendicular to the optical axis of the lens. This causes the relative positions of the lens and the imaging chip to change, resulting in unstable imaging.

[0005] A Japanese company filed a patent application in 2022 with publication number JP7150655B2, proposing a camera device, such as... Figure 1 As shown, the camera device includes a camera module and a driver. The camera module includes an AF component and a lens component. The AF component drives the lens component to move to achieve focusing. The driver drives the camera module to move relative to the imaging chip to achieve image stabilization. However, it is relatively large, making it difficult to achieve miniaturization of the camera device. Utility Model Content

[0006] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a driver that integrates image stabilization and focusing functions. In this way, only the lens assembly needs to be mounted to the driver, eliminating the need for a separate fixing component for the focusing function, thereby facilitating a reduction in the size of the camera device and achieving a miniaturized design.

[0007] The driver according to an embodiment of this application includes: a base, wherein the base is provided with an image stabilization coil; a first carrier, wherein the first carrier is provided with an image stabilization magnet and a focusing coil, wherein the image stabilization magnet is correspondingly provided with the image stabilization coil; and a second carrier, wherein the second carrier is provided with a focusing magnet, wherein the focusing magnet is correspondingly provided with the focusing coil.

[0008] According to the driver of the present application embodiment, the second carrier can be driven by the focusing coil to move the lens assembly relative to the first carrier to achieve the focusing function, and the first carrier can be moved by the image stabilization coil to achieve the image stabilization function. Since both the image stabilization magnet and the focusing coil are disposed on the first carrier, the first carrier can serve as both a moving part for the image stabilization function and a fixed part for the focusing function. This allows for the integration of the fixed part for the focusing function and the moving part for the image stabilization function. Thus, the driver can achieve the integration of the image stabilization function and the focusing function. In this way, only the lens assembly needs to be installed on the driver, and there is no need to separately set up a fixed part for the focusing function, thereby facilitating the reduction of the size of the camera device and realizing the miniaturization design of the camera device.

[0009] According to some embodiments of the present application, the first carrier includes a plurality of sidewalls connected end to end, and two anti-shake magnets are provided. The two anti-shake magnets are provided on two adjacent or mutually perpendicular sidewalls, and the focusing coil is provided on one of the sidewalls that is adjacent to or opposite to either of the two anti-shake magnets.

[0010] According to some embodiments of the present application, the first carrier is sleeved on the second carrier, the second carrier has a receiving space and a lens assembly is received, and the first carrier is provided with a first limiting structure, which can be used to abut against one side of the second carrier.

[0011] According to some embodiments of the driver in this application, the first carrier is provided with a first mounting groove, and the focusing coil is embedded in the first mounting groove.

[0012] According to some embodiments of the present application, the driver includes a focusing coil and a circuit board. The circuit board is embedded in the first mounting slot, and the energized coil is disposed on the side of the circuit board facing the focusing magnet and electrically connected to the circuit board.

[0013] According to some embodiments of the driver in this application, the coil further includes: a magnetic attractor connected to the side of the circuit board away from the energized coil, the first carrier being provided with a guide structure for guiding and engaging with the second carrier, and the magnetic attractor being magnetically attracted to the focusing magnet to apply a clamping force to the guide structure toward the second carrier.

[0014] According to some embodiments of the driver in this application, the guide structure includes guide posts or balls, and the guide structure is disposed at the side wall or the connection of two adjacent side walls.

[0015] According to some embodiments of the driver in this application, the first carrier is provided with a first mating groove, the first mating groove and the first mounting groove are offset in the circumferential direction of the first carrier, and part of the guide post is inserted into the first mating groove.

[0016] According to some embodiments of the driver in this application, the second carrier is provided with a second mating groove for slidingly engaging with the guide post, the second mating groove being disposed opposite to the first mating groove, and another portion of the guide post being located within the second mating groove.

[0017] According to some embodiments of the driver in this application, the second carrier is provided with a second mounting groove, the second mounting groove and the second mating groove are offset from each other in the circumferential direction of the second carrier, and the focusing magnet is embedded in the second mounting groove.

[0018] The driver according to some embodiments of this application further includes: a second limiting structure connected to the first carrier, the second limiting structure being usable to abut against the other side of the second carrier.

[0019] This application also proposes a camera device.

[0020] A camera device according to an embodiment of this application includes: a lens assembly, a photosensitive assembly, and a driver as described in any of the above embodiments, wherein the lens assembly is mounted on the second carrier, and the photosensitive assembly is located on one side of the driver and connected to the driver.

[0021] According to some embodiments of the camera device of this application, the second carrier is provided with a receiving space, at least a portion of the lens assembly extends into the receiving space, and the focusing coil is used to drive the focusing magnet to move the second carrier and the lens assembly in the optical axis direction of the lens assembly.

[0022] According to some embodiments of the camera device of this application, the photosensitive component is connected to the first carrier, and the image stabilization coil is used to drive the image stabilization magnet to drive the first carrier, the second carrier, the lens assembly and the photosensitive component to rotate synchronously around the image stabilization axis, the image stabilization axis being perpendicular to the optical axis of the lens assembly.

[0023] According to some embodiments of the present application, the camera device has a first dimension L1 perpendicular to the optical axis direction, and satisfies: 17mm≤L1≤18mm.

[0024] The camera device and the aforementioned driver have the same advantages over the prior art, which will not be repeated here.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a camera device in the prior art; Figure 2 This is a schematic diagram of a driver according to some embodiments of this application; Figure 3 Explosion of the driver for some embodiments of this application Figure 1 ; Figure 4 This is a cross-sectional view of a driver according to some embodiments of this application; Figure 5 This is an assembly diagram of the first and second carriers according to some embodiments of this application; Figure 6 This is a schematic diagram of a first carrier according to some embodiments of this application; Figure 7 This is a schematic diagram of the focusing coil in some embodiments of this application; Figure 8 Explosion of the driver for some embodiments of this application Figure 2 ; Figure 9 This is a schematic diagram of a camera device according to some embodiments of this application. Figure 1 ; Figure 10 Explosion of the camera device in some embodiments of this application Figure 1 ; Figure 11 Explosion of the camera device in some embodiments of this application Figure 2 ; Figure 12 This is a schematic diagram of a camera device according to some embodiments of this application. Figure 2 .

[0027] Figure label: Camera device 100; Driver 10; Lens assembly 20; Image sensor 30; First image stabilization axis L1, Second image stabilization axis L2; ​​First direction X; Optical axis direction Z; Base 1; First carrier 2; Side wall 21; First limiting structure 22; First mounting groove 23; Guide post 24; First mating groove 25; Second carrier 3; Second mating groove 31; Second mounting groove 32; Receiving space 33; Anti-shake coil 41; Anti-shake magnet 42; Focusing coil 51; Power-on coil 511; Circuit board 512; Pin 5121; Magnetic suction component 513; Focusing magnet 52; Second limiting structure 6; Universal joint 7; First end 71; Second end 72; Third end 73; Fourth end 74; Upper cover 81; Lower cover 82; Bearing 9. Detailed Implementation

[0028] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0029] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0030] The following is in conjunction with the appendix Figures 2-12 The driver 10 and camera device 100 of the present application are described in the embodiments.

[0031] like Figure 2 As shown, this application proposes a driver 10. The driver 10 in the embodiments of this application can be used in a camera device 100. The camera device 100 includes, but is not limited to, a vertical camera module or a horizontal camera module. The camera device 100 can be used in shooting devices such as cameras, mobile phones and gimbals.

[0032] like Figure 3 and Figure 9 As shown, the driver 10 includes: a base 1, a first carrier 2, and a second carrier 3.

[0033] The base 1 is provided with an image stabilization coil 41. The first carrier 2 is provided on the base 1 and is provided with an image stabilization magnet 42 and a focusing coil 51. The image stabilization magnet 42 is provided in correspondence with the image stabilization coil 41. The second carrier 3 is used to house the lens assembly 20 and is connected to the first carrier 2. The second carrier 3 is provided with a focusing magnet 52. The focusing magnet 52 is provided in correspondence with the focusing coil 51.

[0034] It is understood that the driver 10 in this embodiment can drive the second carrier 3 through the focusing coil 51 to move the lens assembly 20 relative to the first carrier 2 along the optical axis Z of the lens to achieve the focusing function.

[0035] Meanwhile, the driver 10 can drive the image stabilization magnet 42 to move the first carrier 2 through the image stabilization coil 41 to achieve the image stabilization function. Since both the image stabilization magnet 42 and the focusing coil 51 are set on the first carrier 2, the first carrier 2 can be used as both a moving part of the image stabilization function and a fixed part of the focusing function. This allows the fixed part of the focusing function and the moving part of the image stabilization function to be integrated, so that the driver 10 can achieve the integrated setting of the image stabilization function and the focusing function.

[0036] In this way, the lens assembly 20 can be installed on the driver 10. Compared with the prior art, which requires a separate fixing component for mounting the focusing coil 51, the design of this application does not require a separate fixing component for the focusing function, thereby making it easier to reduce the size of the camera device 100 and achieve a miniaturized design of the camera device 100.

[0037] In some embodiments, such as Figure 3 , Figure 5 and Figure 6 As shown, the first carrier 2 includes multiple sidewalls 21 connected end to end, and two anti-shake magnets 42 are provided. The two anti-shake magnets 42 can be provided on two adjacent sidewalls 21.

[0038] For example, the first carrier 2 is constructed as a rectangular component, meaning it includes four sidewalls 21 connected end-to-end. Two anti-shake magnets 42 are disposed on two adjacent or mutually perpendicular sidewalls 21. Correspondingly, the base 1 also has two anti-shake coils 41, with each anti-shake coil 41 corresponding to one of the two anti-shake magnets 42. Of course, in other embodiments, the first carrier 2 is constructed as a polygonal component, such as a hexagonal component, in which case the two anti-shake magnets 42 are disposed on two adjacent sidewalls 21; or the first carrier 2 is constructed as an octagonal component, in which case the two anti-shake magnets 42 are disposed on two mutually perpendicular sidewalls 21.

[0039] One anti-shake coil 41 is used to drive the corresponding anti-shake magnet 42 to move the first carrier 2 around an anti-shake axis to achieve anti-shake function in one direction, and the other anti-shake coil 41 is used to drive the corresponding anti-shake magnet 42 to move the first carrier 2 around another anti-shake axis to achieve anti-shake function in another direction. The two directions are different.

[0040] This allows the driver 10 of this application to achieve anti-shake function in at least two directions, thereby facilitating the improvement of the anti-shake capability of the driver 10.

[0041] Furthermore, the focusing coil 51 is disposed on a side wall 21 adjacent to or opposite to either of the two image stabilizing magnets 42.

[0042] For example, in the implementation where the first carrier 2 is constructed as a rectangular component, two image stabilizing magnets 42 are disposed on two adjacent sidewalls 21, and the focusing coil 51 is disposed on the sidewall 21 without image stabilizing magnets 42. The focusing coil 51 and one image stabilizing magnet 42 are disposed on adjacent sidewalls 21, and as... Figure 4 As shown, the focusing coil 51 is positioned opposite to an image stabilization magnet 42.

[0043] This allows the focusing coil 51 to be mounted on the side wall 21 of the first carrier 2 where the image stabilizing magnet 42 is not located, thereby avoiding interference between the focusing coil 51 and the image stabilizing magnet 42. Furthermore, the focusing coil 51 can make full use of the side wall 21 of the first carrier 2 where the image stabilizing magnet 42 is not located, making the arrangement of the focusing coil 51, the first carrier 2, and the image stabilizing magnet 42 more compact, reducing wasted space, and thus achieving a miniaturized design of the driver 10.

[0044] In some embodiments, such as Figure 5 As shown, the first carrier 2 is fitted on the outside of the second carrier 3, forming an overall layout of internal focusing and external image stabilization. This makes the arrangement of the first carrier 2 and the second carrier 3 more compact, which helps to reduce the waste of installation space, thereby realizing the miniaturization design of the driver 10, and also enabling the driver 10 to simultaneously realize the design of the image stabilization function and the focusing function.

[0045] In some embodiments, such as Figure 5 As shown, the second carrier 3 has a receiving space 33 and houses a lens assembly 20. Figure 5 (not shown in the image), such as Figure 4 As shown, the first carrier 2 is provided with a first limiting structure 22, which can be used to abut against one side of the second carrier 3 in the optical axis direction Z of the lens assembly 20.

[0046] It is understandable that when focusing, the focusing coil 51 drives the focusing magnet 52 to move the second carrier 3 and the lens assembly 20 relative to the first carrier 2 in the optical axis direction Z to achieve the focusing function. Since the first carrier 2 is sleeved on the outside of the second carrier 3, and the focusing magnet 52 set on the second carrier 3 needs to correspond to the focusing coil 51 set on the first carrier 2.

[0047] Therefore, when installing the second carrier 3 and the first carrier 2, the second carrier 3 needs to be limited at the extreme position on the axial direction of the optical axis (i.e., the installation direction of the second carrier 3 and the first carrier 2) to prevent the second carrier 3 from being disengaged from the first carrier 2 due to over-installation.

[0048] In this application, a first limiting structure 22 is provided on the first carrier 2. The first limiting structure 22 can be a limiting plate disposed on the inner wall of the first carrier 2. The first limiting structure 22 is used to position the second carrier 3 downward along the optical axis direction Z (e.g., Figure 4 When the lower part of the middle part moves to the lower limit position, it abuts against the second carrier 3, thereby avoiding the second carrier 3 from moving too much.

[0049] The lower limit position refers to the lowest position that the second carrier 3 can move downwards to when it drives the lens assembly 20 to focus. The lower limit position can be designed according to requirements and is not limited here.

[0050] Thus, the first limiting structure 22 can limit the second carrier 3 when it is assembled with the first carrier 2, and it can also limit the second carrier 3 when it drives the lens assembly 20 to focus and moves to its lowest position. Of course, the first limiting structure 22 includes, but is not limited to, the limiting plate mentioned above; any other structure that can achieve the limiting function is acceptable.

[0051] In some embodiments, such as Figure 6 As shown, the first carrier 2 is provided with a first mounting groove 23, and the focusing coil 51 is embedded in the first mounting groove 23. The first mounting groove 23 can be a through groove or a non-through groove, and the specific design depends on the size requirements and reliability.

[0052] It is understandable that by setting the first mounting slot 23, the focusing coil 51 can be accommodated in the first mounting slot 23, thereby improving the connection stability between the focusing coil 51 and the first carrier 2. In addition, the setting of the first mounting slot 23 can also reduce the volume of the first carrier 2 after it is combined with the focusing coil 51, so as to realize the miniaturization and lightweight design of the first carrier 2. At the same time, the setting method of the first mounting slot 23 is relatively simple, which helps to reduce the difficulty of setting.

[0053] In the implementation where the first carrier 2 is mounted on the outside of the second carrier 3, the first mounting groove 23 can be opened towards the second carrier 3 so that the focusing coil 51 can directly face the focusing magnet 52 mounted on the second carrier 3 to achieve magnetic force cooperation.

[0054] In some embodiments, such as Figure 6 , Figure 7 As shown, the focusing coil 51 includes an energized coil 511 and a circuit board 512. The circuit board 512 is embedded in the first mounting groove 23, and the energized coil 511 is located on the side of the circuit board 512 facing the focusing magnet 52 and is electrically connected to the circuit board 512. The circuit board 512 can be glued or soldered to the first mounting groove 23, and can be a rigid circuit board or a flexible circuit board; no limitation is made here.

[0055] This facilitates the improvement of the structural stability of the circuit board 512, and the energizing coil 511 is located on the side of the circuit board 512 facing the focusing magnet 52, so as to reduce the distance between the energizing coil 511 and the focusing magnet 52, thereby better cooperating with the focusing magnet 52 located on the second carrier 3.

[0056] In some embodiments, the driver 10 further includes a main circuit board disposed on the base 1, such as... Figure 7 As shown, the end of the circuit board 512 facing the base 1 is provided with a pin 5121. The pin 5121 is electrically connected to the main circuit board through a flexible circuit board, and the main circuit board is used to connect to an external power source. This facilitates the connection of the circuit board 512 and the energized coil 511 to the main circuit board.

[0057] In some embodiments, such as Figure 7 As shown, the focusing coil 51 also includes a magnetic suction member 513, which is connected to the side of the circuit board 512 opposite to the energized coil 511. Please refer to... Figure 5 and Figure 6 As shown, the first carrier 2 is provided with a guide structure for guiding and engaging with the second carrier 3 in the Z-axis direction. The magnetic attractant 513 and the focusing magnet 52 are magnetically attracted to apply a clamping force F toward the second carrier 3 to the guide structure. The clamping force F can be illustrated as follows. Figure 5 The straight line with an arrow shown.

[0058] It is understandable that, in order to ensure the stability of the fit between the guide structure and the second carrier 3 in the optical axis direction Z, it is necessary to ensure a relatively tight contact between the guide structure and the second carrier 3. Therefore, in this application, a magnetic suction element 513 is provided on the side of the circuit board 512 away from the energized coil 511. For example, the magnetic suction element 513 can be a silicon steel sheet. This makes it easier to apply a clamping force to the guide structure by using the magnetic attraction between the magnetic suction element 513 and the focusing magnet 52, so that the guide structure tends to move closer to the second carrier 3, thereby ensuring a relatively tight contact between the guide structure and the second carrier 3, and thus improving the fit stability between the guide structure and the second carrier 3. At the same time, the silicon steel sheet can reduce magnetic interference, ensuring that the focusing coil 51 can more stably drive the focusing magnet 52 to move the second carrier 3 and the lens assembly 20 along the optical axis direction Z to achieve focusing.

[0059] Meanwhile, when the first carrier 2 and the second carrier 3 are installed, the magnetic attraction between the magnetic suction component 513 on the first carrier 2 and the focusing magnet 52 on the second carrier 3 allows the side of the second carrier 3 with the focusing magnet 52 to be more accurately aligned with the magnetic suction component 513, thereby preventing the second carrier 3 from being installed in the wrong direction. In other words, the magnetic suction component 513 can play a role in preventing mistakes or positioning the installation of the second carrier 3.

[0060] In some embodiments, the guide structure includes guide posts 24 or balls.

[0061] For example, the guiding structure is a guide post 24, which slides with the second carrier 3 in the optical axis direction Z. This makes it easier to reduce the difficulty of guiding the first carrier 2 and the second carrier 3 in the optical axis direction Z, and the structure of the guide post 24 is relatively simple, which helps to reduce costs.

[0062] Alternatively, in some other embodiments, the guide structure is a ball bearing, which is used to roll and engage with the second carrier 3 in the optical axis direction Z. This makes it easier to reduce the difficulty of guiding the first carrier 2 and the second carrier 3 in the optical axis direction Z. Moreover, the friction generated by the rolling engagement is rolling friction, which has a smaller frictional force than sliding friction, thus helping to reduce the load on the second carrier 3 moving in the optical axis direction Z.

[0063] In some embodiments, the guide structure is disposed at the sidewall 21 or at the junction of two adjacent sidewalls 21.

[0064] For example, two sets of guide structures can be provided. These two sets of guide structures can be located on the same side wall 21, or they can be located on two separate side walls 21, or they can be located at the junction of two adjacent side walls 21. Figure 5As shown, the guiding structure is a guide post 24, which is set at the connection of two adjacent side walls 21. In this way, the space at the connection of two adjacent side walls 21 can be used to arrange the guide post 24, making the arrangement of the guide post 24 and the first carrier 2 more compact. Since the focusing coil 51 and the image stabilizing magnet 42 are both set on the side wall 21, setting the guide post 24 at the connection of two adjacent side walls 21 will not affect the setting of the image stabilizing magnet 42 and the focusing coil 51, which helps to reduce the layout difficulty.

[0065] In some embodiments, such as Figure 5 and Figure 6 As shown, the first carrier 2 is provided with a first mating groove 25, and part of the guide post 24 is inserted into the first mating groove 25.

[0066] It is understandable that by setting the first mating groove 25, some of the guide posts 24 can be accommodated in the first mating groove 25, thereby improving the connection stability between the first carrier 2 and the guide posts 24. In addition, the setting of the first mating groove 25 can also reduce the volume of the first carrier 2, so as to realize the miniaturization and lightweight design of the first carrier 2. At the same time, the setting method of the first mating groove 25 is relatively simple, which helps to reduce the difficulty of setting.

[0067] In the implementation where the first carrier 2 is fitted onto the outside of the second carrier 3, such as Figure 5 As shown, the first mating groove 25 can be opened toward the second carrier 3 so that the guide post 24 can directly mate with the second carrier 3.

[0068] In some embodiments, the first mating groove 25 and the first mounting groove 23 are offset from each other in the circumferential direction of the first carrier 2.

[0069] Understandably, since the first mounting slot 23 needs to install the focusing coil 51, in order to avoid interference between the focusing coil 51 and the guide post 24, the first mating slot 25 and the first mounting slot 23 are offset from each other in the circumferential direction of the first carrier 2. The first mating slot 25 and the first mounting slot 23 can be arranged adjacently or spaced apart in the circumferential direction of the first carrier 2, and this is not limited here.

[0070] In some embodiments, such as Figure 5 As shown, the second carrier 3 is provided with a second mating groove 31 for sliding engagement with the guide post 24. The second mating groove 31 is disposed opposite to the first mating groove 25, and another part of the guide post 24 is located within the second mating groove 31. In this way, the sliding engagement between the second mating groove 31 and the guide post 24 can achieve the guiding engagement between the first carrier 2 and the second carrier 3 in the optical axis direction Z. At the same time, the provision of the second mating groove 31 facilitates the reduction of the weight and volume of the second carrier 3, thereby realizing the miniaturization and lightweight design of the second carrier 3.

[0071] It is understandable that in the implementation where the first carrier 2 is mounted on the outside of the second carrier 3, such as Figure 5 As shown, the first mating groove 25 is open to the second carrier 3, and the second mating groove 31 can be open to the first carrier 2 and is arranged opposite to the first mating groove 25. In this way, a part of the guide post 24 is located in the first mating groove 25 and another part is located in the second mating groove 31 in the radial direction. When the focusing coil 51 drives the focusing magnet 52 to move the second carrier 3 and the lens assembly 20 along the optical axis direction Z to achieve focusing, the second mating groove 31 and the guide post 24 slide in the optical axis direction Z to achieve the guiding engagement of the first carrier 2 and the second carrier 3 in the optical axis direction Z.

[0072] Meanwhile, part of the guide post 24 is located in the first mating groove 25 and the other part is located in the second mating groove 31 in the radial direction. This can achieve the guiding fit between the first carrier 2 and the second carrier 3 in the optical axis direction Z, while reducing the influence of the setting of the guide post 24 on the distance between the first carrier 2 and the second carrier 3, thereby making the layout of the first carrier 2 and the second carrier 3 more compact.

[0073] In some embodiments, such as Figure 5 As shown, the guide post 24 is cylindrical, the first mating groove 25 is constructed as an arc-shaped groove that matches the outer peripheral wall of the guide post 24, and the second mating groove 31 is a V-shaped groove. In this way, the arc-shaped first mating groove 25 increases the contact area with the guide post 24, thereby allowing the guide post 24 to be stably installed within the first mating groove 25, thus enhancing the connection stability between the first carrier 2 and the guide post 24. Meanwhile, the second mating groove 31, which has a V-shaped groove, is defined by two intersecting inclined surfaces to clamp the guide post 24 in the circumferential direction, thereby limiting its movement in that direction. This prevents the second carrier 3 from rotating relative to the first carrier 2 in the circumferential direction of the guide post 24 when the second carrier 3 moves relative to the first carrier 2, thus improving the guiding and mating accuracy of the first carrier 2 and the second carrier 3 in the optical axis direction Z.

[0074] In some other embodiments, the first mating groove 25 may also be configured as a V-shaped groove, and the second mating groove 31 may also be configured as a trapezoidal groove or a polygonal groove, which is not limited here.

[0075] In some embodiments, such as Figure 4 As shown, the second carrier 3 is provided with a second mounting groove 32, and the focusing magnet 52 is embedded in the second mounting groove 32.

[0076] It is understandable that by setting the second mounting slot 32, the focusing magnet 52 can be accommodated in the second mounting slot 32, thereby improving the connection stability between the focusing magnet 52 and the second carrier 3. In addition, the setting of the second mounting slot 32 can also reduce the volume of the second carrier 3, so as to realize the miniaturization and lightweight design of the second carrier 3. At the same time, the setting method of the second mounting slot 32 is relatively simple, which helps to reduce the difficulty of setting.

[0077] In the implementation where the first carrier 2 is mounted on the second carrier 3, the second mounting groove 32 can be opened towards the first carrier 2 so that the focusing magnet 52 can directly cooperate with the focusing coil 51.

[0078] In some embodiments, the second mounting groove 32 and the second mating groove 31 are offset from each other in the circumferential direction of the second carrier 3.

[0079] It is understandable that, since the second mating groove 31 needs to accommodate another part of the guide post 24, in order to avoid interference between the focusing magnet 52 and the guide post 24, the second mating groove 31 and the second mounting groove 32 are staggered in the circumferential direction of the second carrier 3 to avoid interference between the focusing magnet 52 and the guide post 24. The second mating groove 31 and the second mounting groove 32 can be arranged adjacently or spaced apart in the circumferential direction of the first carrier 2, which is not limited here.

[0080] In some embodiments, such as Figure 3 , Figure 4 and Figure 8 As shown, the driver 10 further includes a second limiting structure 6, which is connected to the first carrier 2, as shown in the figure. Figure 4 As shown, the second limiting structure 6 can be used to abut against the second carrier 3 on the other side of the lens assembly 20 in the optical axis direction Z.

[0081] Understandably, during focusing, the focusing coil 51 drives the focusing magnet 52 to move the second carrier 3 and the lens assembly 20 relative to the first carrier 2 along the optical axis Z to achieve focusing. Since the first carrier 2 is fitted onto the second carrier 3, the second carrier 3 needs to be limited at its upper limit position along the optical axis (i.e., the mounting direction between the second carrier 3 and the first carrier 2) to prevent the second carrier 3 from moving upwards (e.g., upwards). Figure 4 The second carrier 3 detaches from the first carrier 2 due to the transition of movement (above) in the upper part of the carrier.

[0082] In this application, a second limiting structure 6 is provided. The second limiting structure 6 can be a limiting baffle detachably connected to the first carrier 2. The second limiting structure 6 abuts against the second carrier 3 on the other side of the optical axis direction Z of the lens assembly 20. The second limiting structure 6 is used to position the second carrier 3 upward along the optical axis direction Z (e.g., Figure 4When the upper part of the middle part moves to the upper limit position, it abuts against the second carrier 3, thereby avoiding the second carrier 3 from moving too much.

[0083] The upper limit position refers to the highest position that the second carrier 3 can move upward when it drives the lens assembly 20 to focus. The upper limit position can be designed according to requirements and is not limited here.

[0084] In some embodiments, the second limiting structure 6 is snapped together with the first carrier 2 to achieve a detachable connection between the second limiting structure 6 and the first carrier 2, thereby facilitating the reduction of the difficulty of loading and unloading the first carrier 2 and the second carrier 3.

[0085] Of course, the second limiting structure 6 and the first carrier 2 can also be detachably connected by bolts, plugs or other means, which is not limited here.

[0086] like Figure 9 As shown, this application also proposes a camera device 100.

[0087] The camera device 100 includes a lens assembly 20 and a driver 10 as described in any of the above embodiments, wherein the lens assembly 20 is mounted on a second carrier 3.

[0088] It is understood that the driver 10 can drive the second carrier 3 through the focusing coil 51 to move the lens assembly 20 relative to the first carrier 2 along the optical axis Z of the lens to achieve the focusing function. The driver 10 can also drive the image stabilization magnet 42 through the image stabilization coil 41 to move the first carrier 2, the second carrier 3 and the lens assembly 20 to achieve the image stabilization function. Since the image stabilization magnet 42 and the focusing coil 51 are both located on the first carrier 2, the first carrier 2 can serve as both a moving part for the image stabilization function and a fixed part for the focusing function. This allows for the integration of the fixed part for the focusing function and the moving part for the image stabilization function, thus enabling the driver 10 to achieve the integration of the image stabilization function and the focusing function.

[0089] In this way, when assembling the camera device 100, it is only necessary to install the lens assembly 20 onto the second carrier 3. Compared with the prior art, which requires a separate fixing component for mounting the focusing coil 51, the design of this application does not require a separate fixing component for the focusing function, thereby indirectly eliminating the fixing component and making it easier to reduce the size of the camera device 100, so as to achieve the miniaturization design of the camera device 100.

[0090] In some embodiments, such as Figure 9 As shown, the camera device 100 has a first dimension L1 perpendicular to the optical axis direction Z, and satisfies: 17mm≤L1≤18mm.

[0091] For example Figure 9As shown, the direction Z perpendicular to the optical axis can be the first direction X, and L1 can be 17mm, 17.5mm, 17.8mm or 18mm. When the value of L1 is within the above range, the size of the camera device 100 in the direction Z perpendicular to the optical axis can be smaller, which is conducive to realizing the miniaturization design of the camera device 100.

[0092] It is understandable that in related technologies, such as Figure 1 As shown, to achieve the focusing and image stabilization functions of the camera device 100, it is necessary to provide a fixing component for separately mounting the focusing coil 51 and a carrier for separately mounting the focusing magnet 52 for the focusing function, and to provide a fixing component for separately mounting the image stabilization coil 41 and a carrier for separately mounting the image stabilization magnet 42 for the image stabilization function, as provided in the background section of this application. Figure 1 As shown, it is perpendicular to the optical axis in the Z direction (e.g. Figure 1 The dimension L0 in the X direction is relatively large, and the value of L0 is between 19mm and 20mm.

[0093] In this application, since both the image stabilization magnet 42 and the focusing coil 51 are disposed on the first carrier 2, the first carrier 2 can serve as both a moving part of the image stabilization function and a fixed part of the focusing function. This allows the fixed part of the focusing function and the moving part of the image stabilization function to be integrated, so that the driver 10 can achieve the integrated setting of the image stabilization function and the focusing function.

[0094] Compared with the aforementioned related technologies, this application eliminates at least the need for a separate mounting component for the focusing coil 51. Since the mounting components for the focusing coil 51 and the image stabilization coil 41 are typically distributed in the direction perpendicular to the optical axis Z, the size of the imaging device 100 in this application can be reduced in the direction perpendicular to the optical axis Z. For example… Figure 12 The dimension L in the first direction X is compared with that in the related technology in the direction perpendicular to the optical axis Z (e.g. Figure 1 The dimensions of the camera device 100 in the X direction (as shown in the image) facilitate the implementation of the camera device 100 in the Z direction (perpendicular to the optical axis) (e.g., the X direction). Figure 12 The size of the first direction (X) is reduced, thereby facilitating the miniaturization design of the camera device 100.

[0095] In some embodiments, such as Figure 4As shown, the first direction X is the direction in which the focusing coil 51 and the image stabilizing magnet 42 are positioned relative to each other. Since the first carrier 2 has a first mounting groove 23, which is a groove in the thickness direction of the first carrier 2, the focusing coil 51 is placed within the first mounting groove 23. This allows the focusing coil 51 to overlap with the original space in the thickness direction of the first carrier 2, thus saving the space required for a separate mounting component for the focusing coil 51 and the space occupied by the focusing coil 51 in the first direction. This facilitates the camera device 100 in the direction perpendicular to the optical axis Z (e.g., ...). Figure 12 The size of the first direction (X) is reduced, thereby facilitating the miniaturization design of the camera device 100.

[0096] like Figure 10 and Figure 11 As shown, the camera device 100 also includes a photosensitive component 30, which is located on one side of the driver 10 and connected to the driver 10.

[0097] For example, the photosensitive component 30 may be located on the side of the driver 10 opposite to the lens assembly 20 in the optical axis direction Z of the lens assembly 20, and the photosensitive component 30 is connected to the driver 10. It is understood that the photosensitive component 30 may include, but is not limited to, an image sensor, so that the photosensitive component 30 can receive light entering from the lens assembly 20 to generate an image.

[0098] In some embodiments, the second carrier 3 is provided with a receiving space 33, at least a portion of the lens assembly 20 extends into the receiving space 33, and the focusing coil 51 is used to drive the focusing magnet 52 to move the second carrier 3 and the lens assembly 20 in the optical axis direction Z of the lens assembly 20.

[0099] For example, the inner wall of the second carrier 3 can be constructed as an annular shape, which makes it easy to define a receiving space 33 that matches the lens assembly 30 by using the inner wall of the second carrier 3. At least a portion of the lens assembly 20 extends into the receiving space 33, and the space between the inner walls of the second carrier 3 can be fully utilized to realize the arrangement of the lens assembly 20, thereby making the arrangement of the second carrier 3 and the lens assembly 20 more compact, which is conducive to realizing the miniaturization design of the camera device 100.

[0100] In some embodiments, the photosensitive component 30 is connected to the first carrier 2, and the image stabilization coil 41 is used to drive the image stabilization magnet 42 to drive the first carrier 2, the second carrier 3, the lens assembly 20 and the photosensitive component 30 to perform image stabilization movements synchronously.

[0101] It is understood that the image stabilization coil 41 is used to drive the image stabilization magnet 42 to drive the first carrier 2, the second carrier 3, the lens assembly 20 and the photosensitive assembly 30 to rotate synchronously around the image stabilization axis. Compared with the prior art, which drives the lens assembly 20 or the photosensitive assembly 30 to translate in the direction perpendicular to the optical axis Z, the image stabilization method of this application ensures that the center of the lens assembly 20 and the center of the photosensitive assembly 30 can always be kept on the same straight line because the lens assembly 20 and the photosensitive assembly 30 rotate synchronously. This ensures that the lens assembly 20 has no offset relative to the photosensitive assembly 30 in the direction perpendicular to the optical axis X, thereby ensuring image quality.

[0102] In some embodiments, such as Figure 9 and Figure 10 As shown, the camera device 100 also includes: a universal joint 7, such as Figure 12 As shown, the universal joint 7 has a first end 71, a second end 72, a third end 73, and a fourth end 74 arranged sequentially in the circumferential direction, as follows: Figure 10 As shown, the camera device 100 also includes bearings 9. Multiple bearings 9 may be provided. The base 1 is provided with two bearings 9. The first end 71 and the third end 73 are rotatably connected to the base 1 in the first rotation direction through the two bearings 9 on the base 1. The first carrier 2 is provided with two bearings 9. The second end 72 and the fourth end 74 are connected to the first carrier 2 in the second rotation direction through the two bearings 9 on the first carrier 2. The first rotation direction and the second rotation direction are opposite.

[0103] In some embodiments, the bearing 9 is provided with a spherical protrusion and the universal joint 7 is provided with a spherical groove, so that the universal joint 7 and the bearing 9 are in a convex-concave spherical rotational fit, which is beneficial for limiting the universal joint 7 in the optical axis direction Z.

[0104] In an implementation where both the stabilizing magnet 42 and the stabilizing coil 41 are two in number, the stabilizing axis is also two in number, as detailed below. Figure 12 The two image stabilization axes shown are the first image stabilization axis L1 and the second image stabilization axis L2, both of which are perpendicular to the optical axis Z of the lens assembly 20. Specifically, the first image stabilization axis L1 is the line connecting the first end 71 and the third end 73, and the second image stabilization axis L2 is the line connecting the second end 72 and the fourth end 74.

[0105] When a stabilization line drives a stabilization magnet 42 to move the first carrier 2, the stabilization magnet 42 drives the first carrier 2, the second carrier 3, the lens assembly 20, the photosensitive assembly 30, and the universal joint 7 to rotate around the first rotation axis in the first rotation direction T1. Figure 12 The arrowed curve at the first anti-shake axis L1 in the diagram represents the first rotation direction T1.

[0106] When another image stabilization line drives another image stabilization magnet 42 to move the first carrier 2, the image stabilization magnet 42 drives the first carrier 2, the second carrier 3, the lens assembly 20 and the photosensitive assembly 30 to rotate around the second rotation axis in the second rotation direction T2. Figure 12 The arrowed curve at the second anti-shake axis L2 is the second rotation direction T2. ​​At this time, since the first end 71 and the third end 73 are rotatably connected to the base 1 in the first rotation direction through the bearing 9 respectively, and the first rotation direction and the second rotation direction are opposite, after the universal joint 7 is limited by the base 1, the universal joint 7 will not move synchronously with the first carrier 2, and will not interfere with the movement of the first carrier 2 in the second rotation direction.

[0107] This ensures that the first carrier 2 can achieve image stabilization in at least two directions, thereby facilitating the improvement of the image stabilization capability of the camera.

[0108] In some embodiments, such as Figure 10 As shown, the camera device 100 also includes an upper cover 81 and a lower cover 82. The upper cover 81 is used to install the driver 10 on one side of the lens assembly 20 in the optical axis direction Z, and the lower cover 82 is used to install the driver 10 on the other side of the lens assembly 20 in the optical axis direction Z. In this way, the driver 10 can be protected on both sides of the lens assembly 20 in the optical axis direction Z by the upper cover 81 and the lower cover 82, thereby reducing the risk of damage to its structure.

[0109] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0110] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0111] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0112] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0113] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0114] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A driver (10), characterized in that, include: A base (1) is provided with a shake-proof coil (41); The first carrier (2) is provided with a stabilizing magnet (42) and a focusing coil (51), wherein the stabilizing magnet (42) and the stabilizing coil (41) are respectively provided; The second carrier (3) is provided with a focusing magnet (52), which is correspondingly provided with the focusing coil (51).

2. The driver (10) according to claim 1, characterized in that, The first carrier (2) includes a plurality of sidewalls (21) connected end to end. Two anti-shake magnets (42) are provided. The two anti-shake magnets (42) are provided on two sidewalls (21) that are adjacent or perpendicular to each other. The focusing coil (51) is provided on one of the sidewalls (21) that is adjacent to or opposite to any one of the two anti-shake magnets (42).

3. The driver (10) according to claim 1, characterized in that, The first carrier (2) is fitted onto the second carrier (3), the second carrier (3) has a receiving space (33) and a lens assembly (20) is received, the first carrier (2) is provided with a first limiting structure (22), the first limiting structure (22) can be used to abut against one side of the second carrier (3).

4. The driver (10) according to claim 2, characterized in that, The first carrier (2) is provided with a first mounting groove (23), and the focusing coil (51) is embedded in the first mounting groove (23).

5. The driver (10) according to claim 4, characterized in that, The focusing coil (51) includes an energized coil (511) and a circuit board (512). The circuit board (512) is embedded in the first mounting groove (23). The energized coil (511) is located on the side of the circuit board (512) facing the focusing magnet (52) and is electrically connected to the circuit board (512).

6. The driver (10) according to claim 5, characterized in that, The focusing coil further includes a magnetic attractor (513), which is connected to the side of the circuit board (512) away from the energized coil (511). The first carrier (2) is provided with a guide structure for guiding and cooperating with the second carrier (3). The magnetic attractor (513) is magnetically attracted to the focusing magnet (52) to apply a pressing force to the guide structure toward the second carrier (3).

7. The driver (10) according to claim 6, characterized in that, The guide structure includes a guide post (24) or a ball bearing, and the guide structure is disposed at the side wall (21) or at the connection of two adjacent side walls (21).

8. The driver (10) according to claim 7, characterized in that, The first carrier (2) is provided with a first mating groove (25), and the first mating groove (25) and the first mounting groove (23) are offset from each other in the circumferential direction of the first carrier (2), and part of the guide post (24) is inserted into the first mating groove (25).

9. The driver (10) according to claim 8, characterized in that, The second carrier (3) is provided with a second mating groove (31) for sliding engagement with the guide post (24). The second mating groove (31) is disposed opposite to the first mating groove (25), and another part of the guide post (24) is located in the second mating groove (31).

10. The driver (10) according to claim 9, characterized in that, The second carrier (3) is provided with a second mounting groove (32), and the second mounting groove (32) and the second mating groove (31) are offset from each other in the circumferential direction of the second carrier (3), and the focusing magnet (52) is embedded in the second mounting groove (32).

11. The driver (10) according to claim 3, characterized in that, Also includes: The second limiting structure (6) is connected to the first carrier (2) and can be used to abut against the other side of the second carrier (3).

12. A camera device (100), characterized in that, include: The lens assembly (20), the photosensitive assembly (30), and the driver (10) according to any one of claims 1-11, wherein the lens assembly (20) is mounted on the second carrier (3), and the photosensitive assembly (30) is located on one side of the driver (10) and connected to the driver (10).

13. The camera device (100) according to claim 12, characterized in that, The second carrier (3) is provided with a receiving space (33), at least a portion of the lens assembly (20) extends into the receiving space (33), and the focusing coil (51) is used to drive the focusing magnet (52) to move the second carrier (3) and the lens assembly (20) in the direction of the optical axis of the lens assembly (20).

14. The camera device (100) according to claim 13, characterized in that, The photosensitive component (30) is connected to the first carrier (2), and the image stabilization coil (41) is used to drive the image stabilization magnet (42) to drive the first carrier (2), the second carrier (3), the lens assembly (20) and the photosensitive component (30) to rotate synchronously around the image stabilization axis, which is perpendicular to the optical axis of the lens assembly (20).

15. The camera device (100) according to claim 13, characterized in that, The camera device (100) has a first dimension L1 perpendicular to the optical axis direction, and satisfies: 17mm≤L1≤18mm.

Images